/* ===========================================
   VBV 官网 - 主样式表
   高端大气上档次 - 深蓝主调 + 金色点缀
   =========================================== */

/* ---------- CSS 变量 ---------- */
:root {
  /* 主色系 */
  --color-primary: #0a1929;
  --color-primary-light: #1a2942;
  --color-primary-dark: #06121f;
  --color-accent: #c9a961;
  --color-accent-light: #d4b876;
  --color-accent-dark: #a88947;

  /* 中性色 */
  --color-white: #ffffff;
  --color-bg: #fafbfc;
  --color-bg-alt: #f5f5f5;
  --color-border: #e8e8e8;
  --color-text: #1a1a1a;
  --color-text-light: #666666;
  --color-text-lighter: #999999;

  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);

  /* 字号 */
  --font-xs: 12px;
  --font-sm: 14px;
  --font-base: 16px;
  --font-lg: 18px;
  --font-xl: 20px;
  --font-2xl: 24px;
  --font-3xl: 32px;
  --font-4xl: 42px;
  --font-5xl: 56px;
  --font-6xl: 72px;

  /* 间距 */
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 40px;
  --space-xl: 64px;
  --space-2xl: 96px;

  /* 容器 */
  --container-max: 1320px;
  --container-padding: 24px;

  /* 过渡 */
  --transition: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.2s ease;
}

/* ---------- 全局重置 ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", "Segoe UI", "Arial", "Source Han Sans CN", sans-serif;
  font-size: var(--font-base);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* ---------- 通用容器 ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--space-2xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section-eyebrow {
  display: inline-block;
  font-size: var(--font-sm);
  font-weight: 500;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
  position: relative;
  padding: 0 32px;
}

.section-eyebrow::before,
.section-eyebrow::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 24px;
  height: 1px;
  background: var(--color-accent);
}

.section-eyebrow::before { left: 0; }
.section-eyebrow::after { right: 0; }

.section-title {
  font-size: var(--font-4xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-sm);
  letter-spacing: -0.5px;
}

.section-title-light {
  color: var(--color-white);
}

.section-desc {
  font-size: var(--font-lg);
  color: var(--color-text-light);
  max-width: 720px;
  margin: 0 auto;
  line-height: 1.8;
}

.section-desc-light {
  color: rgba(255, 255, 255, 0.7);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: var(--font-base);
  font-weight: 500;
  border-radius: 2px;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  letter-spacing: 0.5px;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-primary);
}

.btn-primary:hover {
  background: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  background: transparent;
}

.btn-outline:hover {
  background: var(--color-accent);
  color: var(--color-primary);
}

.btn-light {
  background: var(--color-white);
  color: var(--color-primary);
}

.btn-light:hover {
  background: var(--color-accent);
  transform: translateY(-2px);
}

.btn-arrow::after {
  content: "→";
  font-size: 1.2em;
  transition: transform var(--transition);
}

.btn-arrow:hover::after {
  transform: translateX(4px);
}

/* ---------- 顶部导航 ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 25, 41, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all var(--transition);
  border-bottom: 1px solid transparent;
}

.header.scrolled {
  background: rgba(10, 25, 41, 0.95);
  border-bottom: 1px solid rgba(201, 169, 97, 0.2);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-white);
  font-size: var(--font-xl);
  font-weight: 700;
  letter-spacing: 1px;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -1px;
  border-radius: 2px;
}

/* 图片版 logo（顶部导航 40px、footer 60px） */
.logo-image {
  height: 40px;
  width: auto;
  display: block;
  border-radius: 2px;
}
.logo-image-top {
  height: 60px;
}
.logo-image-lg {
  height: 64px;
}
/* 顶部 logo 容器：无文字，只需图本身 */
.logo-top {
  gap: 0;
}

/* ============================================================
   前端文案编辑模式（admin only）
   开启方式：admin 登录后点顶部"编辑文案"按钮，给 body 加 data-edit-mode="on"
   然后页面所有带 data-i18n-key 的元素可右键编辑（弹模态框）。
   ============================================================ */
.nav-edit-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-left: 8px;
  padding: 6px 12px;
  background: var(--color-accent);
  color: var(--color-primary);
  border: 1px solid var(--color-accent-dark);
  border-radius: 2px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}
.nav-edit-toggle:hover {
  background: var(--color-accent-dark);
  color: var(--color-white);
}
.nav-edit-toggle.is-active {
  background: #e67e22;
  color: #fff;
  border-color: #d35400;
}
.nav-edit-toggle-icon {
  font-size: 14px;
  line-height: 1;
}

/* 编辑模式下的全局视觉提示 */
body[data-edit-mode="on"] [data-i18n-key] {
  position: relative;
  outline: 1px dashed rgba(230, 126, 34, 0.45);
  outline-offset: 2px;
  cursor: context-menu;
  transition: outline-color 0.15s, background 0.15s;
}
body[data-edit-mode="on"] [data-i18n-key]:hover {
  outline: 2px solid #e67e22;
  background: rgba(230, 126, 34, 0.08);
}
body[data-edit-mode="on"] [data-i18n-key]::before {
  content: attr(data-i18n-key);
  position: absolute;
  top: -22px;
  left: 0;
  background: #e67e22;
  color: #fff;
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 2px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s;
  z-index: 999;
  font-family: ui-monospace, "Cascadia Code", Menlo, monospace;
}
body[data-edit-mode="on"] [data-i18n-key]:hover::before {
  opacity: 1;
}

/* 编辑模态框 */
.i18n-edit-modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 10000;
  align-items: center;
  justify-content: center;
}
.i18n-edit-modal.is-open {
  display: flex;
}
.i18n-edit-modal-body {
  background: var(--color-white);
  width: 92%;
  max-width: 560px;
  border-radius: 6px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  overflow: hidden;
}
.i18n-edit-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: var(--color-primary);
  color: var(--color-white);
}
.i18n-edit-modal-header h3 {
  margin: 0;
  font-size: 16px;
}
.i18n-edit-modal-close {
  cursor: pointer;
  font-size: 22px;
  line-height: 1;
  opacity: 0.85;
}
.i18n-edit-modal-close:hover {
  opacity: 1;
}
.i18n-edit-modal-content {
  padding: 20px;
}
.i18n-edit-modal-row {
  margin-bottom: 14px;
}
.i18n-edit-modal-row label {
  display: block;
  margin-bottom: 4px;
  font-size: 12px;
  color: var(--color-text-light);
  font-weight: 600;
}
.i18n-edit-modal-row input,
.i18n-edit-modal-row textarea,
.i18n-edit-modal-row select {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  font-size: 14px;
  font-family: inherit;
  box-sizing: border-box;
}
.i18n-edit-modal-row textarea {
  min-height: 100px;
  resize: vertical;
}
.i18n-edit-modal-row .i18n-edit-modal-key-locale {
  display: flex;
  gap: 12px;
}
.i18n-edit-modal-row .i18n-edit-modal-key-locale > div {
  flex: 1;
}
.i18n-edit-modal-row .i18n-edit-modal-key-locale select {
  flex: 0 0 110px;
}
.i18n-edit-modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 20px;
  border-top: 1px solid var(--color-border);
  background: #fafafa;
}
.i18n-edit-modal-footer button {
  padding: 8px 18px;
  border-radius: 2px;
  cursor: pointer;
  border: none;
  font-size: 14px;
}
.i18n-edit-modal-save {
  background: var(--color-primary);
  color: var(--color-white);
}
.i18n-edit-modal-cancel {
  background: #e0e0e0;
  color: #555;
}
.i18n-edit-modal-save:hover { background: var(--color-primary-dark); }
.i18n-edit-modal-cancel:hover { background: #ccc; }
.i18n-edit-modal-hint {
  font-size: 12px;
  color: var(--color-text-light);
  margin-top: 4px;
}

.logo-text {
  font-size: var(--font-xl);
  font-weight: 600;
  color: var(--color-white);
  letter-spacing: 1px;
}

.nav-main {
  display: flex;
  align-items: center;
  flex-wrap: wrap;          /* 长语种 nav 总宽度超出容器时换到第二行，保证所有项可见 */
  justify-content: flex-end;
  gap: 4px;
}

.nav-main a {
  display: block;
  padding: 10px 14px;
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--font-base);
  font-weight: 400;
  transition: color var(--transition-fast);
  position: relative;
  /* 关键：避免长文本（俄文/泰文）在 nav 项内被强制断行成两行 */
  white-space: nowrap;
  flex-shrink: 0;
}

/* 长语种（俄文/泰文）nav 文本天然更长：缩字号 + 减 padding，让 8 项大概率能塞进一行 */
:lang(ru) .nav-main a,
:lang(th) .nav-main a {
  padding: 10px 10px;
  font-size: 14px;
}
/* header-inner 在大屏有足够空间，给俄文 nav 留出更多列宽 */
@media (min-width: 1200px) {
  :lang(ru) .nav-main a { padding: 10px 12px; font-size: 14px; }
}

.nav-main a::after {
  content: "";
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}

.nav-main a:hover,
.nav-main a.active {
  color: var(--color-white);
}

.nav-main a:hover::after,
.nav-main a.active::after {
  width: 24px;
}

.nav-tools {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lang-switch {
  position: relative;
}

.lang-switch-current {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  color: var(--color-white);
  font-size: var(--font-sm);
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.lang-switch-current:hover {
  border-color: var(--color-accent);
}

.lang-switch-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 140px;
  background: var(--color-white);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-fast);
}

.lang-switch:hover .lang-switch-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-switch-dropdown a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  color: var(--color-text);
  font-size: var(--font-sm);
  transition: background var(--transition-fast);
}

.lang-switch-dropdown a:hover {
  background: var(--color-bg);
  color: var(--color-accent-dark);
}

.lang-flag {
  display: inline-block;
  width: 18px;
  height: 12px;
  border-radius: 1px;
  background: var(--color-accent);
}

.nav-toggle {
  display: none;
  width: 32px;
  height: 32px;
  align-items: center;
  justify-content: center;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-white);
  position: relative;
  transition: all var(--transition-fast);
}

.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  position: absolute;
  left: 0;
  width: 22px;
  height: 2px;
  background: var(--color-white);
  transition: all var(--transition-fast);
}

.nav-toggle span::before { top: -7px; }
.nav-toggle span::after { top: 7px; }

.nav-toggle.active span {
  background: transparent;
}

.nav-toggle.active span::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle.active span::after {
  top: 0;
  transform: rotate(-45deg);
}

/* ===========================================
   首页专属增强 - 高端大气品牌调性
   =========================================== */

/* ---------- 首页 Hero ---------- */
.hero {
  position: relative;
  height: 100vh;
  min-height: 720px;
  display: flex;
  align-items: center;
  color: var(--color-white);
  overflow: hidden;
  padding-top: 80px;
  padding-bottom: 160px;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: -2;
  overflow: hidden;
  background: var(--color-primary);
}

/* Hero 金线边框装饰（整体外框） */
.hero-frame {
  position: absolute;
  top: 96px;
  bottom: 165px;
  left: max(24px, calc((100vw - var(--container-max)) / 2 + 24px));
  right: max(24px, calc((100vw - var(--container-max)) / 2 + 24px));
  border: 1px solid rgba(201, 169, 97, 0.35);
  pointer-events: none;
  z-index: 1;
  opacity: 0.6;
}
.hero-frame::before,
.hero-frame::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-accent);
}
.hero-frame::before { top: -2px; left: -2px; border-right: none; border-bottom: none; }
.hero-frame::after  { bottom: -2px; right: -2px; border-left: none; border-top: none; }

@keyframes cornerFade {
  from { opacity: 0; transform: scale(0.85); }
  to   { opacity: 0.85; transform: scale(1); }
}

/* Hero 编号 01/06 */
.hero-counter {
  position: absolute;
  top: 90px;
  right: max(24px, calc((100vw - var(--container-max)) / 2 + 24px));
  z-index: 3;
  display: flex;
  align-items: baseline;
  gap: 4px;
  color: rgba(255, 255, 255, 0.85);
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: var(--font-sm);
  letter-spacing: 3px;
  opacity: 0.95;
}
.hero-counter .num {
  font-size: var(--font-2xl);
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0;
  font-variant-numeric: tabular-nums;
}

/* Hero 右侧大编号水印 */
.hero-watermark {
  position: absolute;
  right: max(24px, calc((100vw - var(--container-max)) / 2 + 24px));
  top: 50%;
  transform: translateY(-50%);
  z-index: 1;
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 280px;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.06);
  letter-spacing: -12px;
  line-height: 1;
  pointer-events: none;
  user-select: none;
  font-variant-numeric: tabular-nums;
  opacity: 0.85;
}

/* Hero 滚动提示 */
.hero-scroll {
  position: absolute;
  left: 50%;
  bottom: 165px;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.75);
  font-size: var(--font-xs);
  letter-spacing: 4px;
  text-transform: uppercase;
  opacity: 0.95;
}
.hero-scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, transparent, var(--color-accent));
  position: relative;
  overflow: hidden;
}
.hero-scroll-line::after {
  content: "";
  position: absolute;
  top: -10px;
  left: 0;
  width: 100%;
  height: 10px;
  background: var(--color-accent);
  animation: scrollHint 1.8s ease-in-out infinite;
}
@keyframes scrollHint {
  0%   { transform: translateY(0);   opacity: 1; }
  100% { transform: translateY(50px); opacity: 0; }
}

/* 轮播层：所有图片层叠，is-active 才有透明度 */
.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  opacity: 0;
  transform: scale(1.0);
  transition: opacity 1.6s ease-in-out;
  will-change: opacity, transform;
}

.hero-slide.is-active {
  opacity: 1;
  animation: kenBurns 8s ease-out forwards;
}

/* Ken Burns：缓慢推近 + 微移，电影质感 */
@keyframes kenBurns {
  0%   { transform: scale(1.0)  translate(0, 0); }
  100% { transform: scale(1.12) translate(-1.5%, -1%); }
}

/* 暗化叠加层：左侧加深，确保文字清晰；底部加深接 stats */
.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(10, 25, 41, 0.78) 0%, rgba(10, 25, 41, 0.55) 35%, rgba(10, 25, 41, 0.20) 65%, rgba(10, 25, 41, 0.10) 100%),
    linear-gradient(180deg, rgba(10, 25, 41, 0.35) 0%, transparent 30%, transparent 65%, rgba(10, 25, 41, 0.65) 100%);
  pointer-events: none;
}

/* 顶部到底部的暗角：电影感 */
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 55%, rgba(0, 0, 0, 0.35) 100%);
  pointer-events: none;
}

/* 行业标签：左下角，切换时淡入 */
.hero-caption {
  position: absolute;
  left: 0;
  bottom: 130px;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 max(24px, calc((100vw - var(--container-max)) / 2 + 24px));
  color: rgba(255, 255, 255, 0.92);
  font-size: var(--font-sm);
  letter-spacing: 4px;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.hero-caption.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.hero-caption-line {
  display: inline-block;
  width: 40px;
  height: 1px;
  background: var(--color-accent);
}

.hero-caption-text {
  font-weight: 500;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
}

/* 轮播指示点：右下角 */
.hero-indicators {
  position: absolute;
  right: max(24px, calc((100vw - var(--container-max)) / 2 + 24px));
  bottom: 140px;
  z-index: 2;
  display: flex;
  gap: 10px;
}

.hero-indicator {
  display: inline-block;
  width: 24px;
  height: 2px;
  background: rgba(255, 255, 255, 0.3);
  transition: background 0.4s ease, width 0.4s ease;
}

.hero-indicator.is-active {
  background: var(--color-accent);
  width: 36px;
}

.hero-content {
  max-width: 760px;
  padding: 40px 0 40px;
  position: relative;
  z-index: 2;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: var(--font-sm);
  font-weight: 500;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
  animation: fadeUp 1s 0.2s ease-out;
}

.hero-eyebrow::before {
  content: "";
  width: 32px;
  height: 1px;
  background: var(--color-accent);
}

.hero-title {
  font-size: clamp(32px, 5vw, 68px);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 32px;
  letter-spacing: -1px;
  /* 中文/泰文按"词"不换行；俄文/英文超长无空格单词由 overflow-wrap: break-word 兜底换行 */
  word-break: keep-all;
  overflow-wrap: break-word;
  color: var(--color-white);
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.8), 0 4px 24px rgba(0, 0, 0, 0.6);
  animation: fadeUp 1s 0.3s ease-out;
}

/* CJK 语言（中文/泰文）标题强制不换行，防止任意字符间断行 */
.hero-title.hero-title-cjk > span:first-child {
  white-space: nowrap;
}

/* 非 CJK 语言（俄文/英文等）允许长串按词/字符换行兜底，避免溢出 */
.hero-title:not(.hero-title-cjk) > span:first-child {
  word-break: normal;
  overflow-wrap: break-word;
}

.hero-title .accent {
  display: block;
  margin-top: 24px;
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 0.32em;
  font-weight: 400;
  letter-spacing: 12px;
  color: var(--color-accent);
  text-transform: uppercase;
}

.hero-subtitle {
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: var(--font-xl);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: var(--space-sm);
  letter-spacing: 1px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.7);
  animation: fadeUp 1s 0.5s ease-out;
}

.hero-tagline {
  font-size: var(--font-lg);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--space-lg);
  /* 让长句（特别是英文）自动平衡换行点，避免末尾单词孤行 */
  text-wrap: balance;
  max-width: 540px;
  letter-spacing: 0.5px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
  animation: fadeUp 1s 0.7s ease-out;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeUp 1s 0.9s ease-out;
}

/* Hero 标题左侧金色装饰竖线 */
.hero-content::before {
  content: "";
  position: absolute;
  left: -28px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-accent) 0%, var(--color-accent) 40%, transparent 100%);
  opacity: 0;
  animation: fadeUp 1s 0.3s ease-out forwards;
}

/* Hero 主按钮加重效果 */
.hero-actions .btn-primary {
  background: var(--color-accent);
  color: var(--color-primary);
  padding: 18px 40px;
  font-size: var(--font-lg);
  letter-spacing: 2px;
  font-weight: 600;
}
.hero-actions .btn-outline-light {
  background: transparent;
  color: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.4);
  padding: 18px 40px;
  font-size: var(--font-lg);
  letter-spacing: 2px;
}
.hero-actions .btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.hero-stats {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(10, 25, 41, 0.7);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-top: 1px solid rgba(201, 169, 97, 0.3);
}

.hero-stats-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  position: relative;
}

.stat-item {
  padding: 32px 24px;
  text-align: center;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  transition: background var(--transition);
  position: relative;
}

.stat-item:last-child {
  border-right: none;
}

.stat-item:hover {
  background: rgba(201, 169, 97, 0.08);
}

/* 每个 stat 顶部细金线 */
.stat-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.stat-item:hover::before {
  width: 80%;
}

.stat-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: var(--font-xs);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 12px;
  letter-spacing: 3px;
  text-transform: uppercase;
}

.stat-label::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
}

.stat-value {
  font-size: var(--font-4xl);
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 1px;
  font-variant-numeric: tabular-nums;
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  line-height: 1;
}

.stat-value .unit {
  font-size: 0.5em;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.7);
  margin-left: 4px;
  letter-spacing: 0;
}

.stat-sub {
  margin-top: 8px;
  font-size: var(--font-xs);
  color: rgba(255, 255, 255, 0.55);
  letter-spacing: 2px;
  text-transform: uppercase;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 无障碍：尊重用户的减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  .hero-eyebrow,
  .hero-title,
  .hero-subtitle,
  .hero-tagline,
  .hero-actions,
  .reveal,
  .reveal-left,
  .reveal-right,
  .reveal-fade {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}

/* ---------- 首页 Section 通用 ---------- */
.section-dark {
  background: var(--color-primary);
  color: var(--color-white);
}

.section-dark .section-title {
  color: var(--color-white);
}

.section-dark .section-desc {
  color: rgba(255, 255, 255, 0.7);
}

/* ===========================================
   新增板块 - 高端感强化
   =========================================== */

/* ---------- 三大核心能力 ---------- */
.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: var(--space-lg);
}

.capability-item {
  position: relative;
  padding: 48px 40px;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  transition: background var(--transition);
  overflow: hidden;
}

.capability-item:last-child {
  border-right: none;
}

.capability-item:hover {
  background: rgba(201, 169, 97, 0.04);
}

.capability-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.capability-item:hover::before {
  width: 100%;
}

.capability-no {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: var(--font-sm);
  font-weight: 500;
  color: var(--color-accent);
  letter-spacing: 3px;
  margin-bottom: 32px;
}

.capability-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  margin-bottom: 28px;
  font-size: 24px;
  position: relative;
}

.capability-icon::before {
  content: "";
  position: absolute;
  inset: -6px;
  border: 1px solid rgba(201, 169, 97, 0.3);
  transition: inset 0.4s ease;
}

.capability-item:hover .capability-icon::before {
  inset: -3px;
}

.capability-title {
  font-size: var(--font-2xl);
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 8px;
  letter-spacing: -0.5px;
}

.capability-title-en {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: var(--font-sm);
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.capability-desc {
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.8;
  font-size: var(--font-base);
  margin-bottom: 24px;
}

.capability-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-accent);
  font-size: var(--font-sm);
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 500;
}

.capability-link::after {
  content: "→";
  font-size: 1.2em;
  transition: transform var(--transition-fast);
}

.capability-item:hover .capability-link::after {
  transform: translateX(4px);
}

/* ---------- 全球布局数据带 ---------- */
.global-stats {
  background: var(--color-primary-dark);
  color: var(--color-white);
  padding: var(--space-xl) 0;
  border-bottom: 1px solid rgba(201, 169, 97, 0.2);
}

.global-stats-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  align-items: center;
}

.global-stat {
  text-align: center;
  padding: 0 32px;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.global-stat:last-child {
  border-right: none;
}

.global-stat-no {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 64px;
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: -2px;
  line-height: 1;
  margin-bottom: 12px;
  font-variant-numeric: tabular-nums;
}

.global-stat-no .plus,
.global-stat-no .unit {
  font-size: 0.5em;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0;
  margin-left: 2px;
}

.global-stat-label {
  font-size: var(--font-sm);
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 3px;
  text-transform: uppercase;
}

.global-stat-label-en {
  display: block;
  margin-top: 6px;
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: var(--font-xs);
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 2px;
}

/* ---------- 国际化进程时间轴 ---------- */
.timeline {
  position: relative;
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 0;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--color-accent) 8%, var(--color-accent) 92%, transparent);
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  width: 50%;
  padding: 30px 60px;
}

.timeline-item:nth-child(odd) {
  padding-right: 70px;
  text-align: right;
}

.timeline-item:nth-child(even) {
  margin-left: 50%;
  padding-left: 70px;
  text-align: left;
}

.timeline-item::before {
  content: "";
  position: absolute;
  top: 38px;
  width: 14px;
  height: 14px;
  background: var(--color-white);
  border: 2px solid var(--color-accent);
  border-radius: 50%;
  z-index: 1;
  box-shadow: 0 0 0 4px var(--color-bg);
}

.timeline-item:nth-child(odd)::before {
  right: -7px;
}

.timeline-item:nth-child(even)::before {
  left: -7px;
}

.timeline-year {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: var(--font-3xl);
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: -1px;
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}

.timeline-title {
  font-size: var(--font-xl);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.timeline-desc {
  color: var(--color-text-light);
  line-height: 1.7;
  font-size: var(--font-sm);
}

/* ---------- 客户类型板块 ---------- */
.client-types {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  margin-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.client-type {
  position: relative;
  padding: 40px 20px;
  text-align: center;
  border-right: 1px solid var(--color-border);
  transition: all var(--transition);
  cursor: pointer;
  background: var(--color-white);
}

.client-type:last-child {
  border-right: none;
}

.client-type:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  z-index: 2;
}

.client-type-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  font-size: 24px;
  transition: all var(--transition);
}

.client-type:hover .client-type-icon {
  background: var(--color-accent);
  color: var(--color-primary);
  border-color: var(--color-accent);
}

.client-type-name {
  font-size: var(--font-lg);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 6px;
  transition: color var(--transition);
}

.client-type:hover .client-type-name {
  color: var(--color-white);
}

.client-type-name-en {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: var(--font-xs);
  color: var(--color-text-lighter);
  letter-spacing: 2px;
  text-transform: uppercase;
  transition: color var(--transition);
}

.client-type:hover .client-type-name-en {
  color: rgba(255, 255, 255, 0.6);
}

/* ---------- CTA 大字板块 ---------- */
.cta-grand {
  position: relative;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 120px 0;
  overflow: hidden;
}

.cta-grand::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.cta-grand::after {
  content: "";
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(201, 169, 97, 0.15) 0%, transparent 60%);
  pointer-events: none;
}

.cta-grand-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta-grand-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--color-accent);
  font-size: var(--font-sm);
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 32px;
}

.cta-grand-eyebrow::before,
.cta-grand-eyebrow::after {
  content: "";
  width: 32px;
  height: 1px;
  background: var(--color-accent);
}

.cta-grand-title {
  font-size: clamp(40px, 5vw, 72px);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 32px;
  letter-spacing: -1px;
}

.cta-grand-title .accent {
  color: var(--color-accent);
}

.cta-grand-desc {
  font-size: var(--font-lg);
  color: rgba(255, 255, 255, 0.75);
  max-width: 640px;
  margin: 0 auto 48px;
  line-height: 1.8;
}

.cta-grand-actions {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.cta-grand-actions .btn-primary {
  padding: 18px 48px;
  font-size: var(--font-lg);
  letter-spacing: 2px;
  font-weight: 600;
}

.cta-grand-actions .btn-outline-light {
  padding: 18px 48px;
  font-size: var(--font-lg);
  letter-spacing: 2px;
  border-color: rgba(255, 255, 255, 0.4);
  color: var(--color-white);
}

.cta-grand-actions .btn-outline-light:hover {
  border-color: var(--color-accent);
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-accent);
}

/* CTA 装饰数字 */
.cta-grand-watermark {
  position: absolute;
  bottom: -40px;
  left: 50%;
  transform: translateX(-50%);
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 220px;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.04);
  letter-spacing: -10px;
  line-height: 1;
  pointer-events: none;
  user-select: none;
  font-variant-numeric: tabular-nums;
}

/* ---------- 建筑体系卡片 ---------- */
.systems-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.system-card {
  position: relative;
  background: var(--color-white);
  border-radius: 0;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  border: 1px solid var(--color-border);
}

.system-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-accent);
}

.system-card-image {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}

.system-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.system-card:hover .system-card-image img {
  transform: scale(1.08);
}

.system-card-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 25, 41, 0.3) 0%, transparent 40%, transparent 60%, rgba(10, 25, 41, 0.85) 100%);
}

.system-card-no {
  position: absolute;
  top: 24px;
  left: 24px;
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: var(--font-5xl);
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -2px;
  z-index: 2;
  line-height: 1;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);
}

.system-card-no::before {
  content: "";
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--color-accent);
  vertical-align: middle;
  margin-right: 12px;
  margin-bottom: 6px;
}

.system-card-tag {
  position: absolute;
  top: 28px;
  right: 24px;
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: var(--font-xs);
  letter-spacing: 3px;
  color: var(--color-accent);
  text-transform: uppercase;
  z-index: 2;
  padding: 6px 12px;
  background: rgba(10, 25, 41, 0.6);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.system-card-body {
  padding: 36px;
  position: relative;
}

.system-card-title {
  font-size: var(--font-2xl);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
  letter-spacing: -0.5px;
  transition: color var(--transition);
}

.system-card:hover .system-card-title {
  color: var(--color-accent-dark);
}

.system-card-title-en {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: var(--font-xs);
  color: var(--color-text-lighter);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.system-card-desc {
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 24px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.system-card-features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.system-card-feature {
  padding: 4px 12px;
  font-size: var(--font-xs);
  color: var(--color-primary);
  background: var(--color-bg);
  letter-spacing: 1px;
}

.system-card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-accent-dark);
  font-weight: 500;
  font-size: var(--font-sm);
  text-transform: uppercase;
  letter-spacing: 2px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
  width: 100%;
  transition: color var(--transition);
}

.system-card-link::after {
  content: "→";
  margin-left: auto;
  transition: transform var(--transition-fast);
}

.system-card:hover .system-card-link {
  color: var(--color-accent-dark);
}

.system-card:hover .system-card-link::after {
  transform: translateX(8px);
}

/* ---------- 工厂卡片 ---------- */
.factories-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.factory-card {
  position: relative;
  background: var(--color-white);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  border-radius: 0;
}

.factory-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-6px);
}

.factory-card-image {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}

.factory-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.factory-card:hover .factory-card-image img {
  transform: scale(1.1);
}

.factory-card-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 25, 41, 0.2) 0%, transparent 35%, transparent 50%, rgba(10, 25, 41, 0.92) 100%);
}

.factory-card-location {
  position: absolute;
  top: 20px;
  left: 20px;
  padding: 6px 14px;
  background: rgba(201, 169, 97, 0.95);
  color: var(--color-primary);
  font-size: var(--font-xs);
  font-weight: 600;
  letter-spacing: 2px;
  z-index: 2;
  text-transform: uppercase;
}

/* 工厂卡片状态徽标（筹建中） */
.factory-card-status {
  position: absolute;
  top: 20px;
  right: 20px;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.95);
  color: var(--color-primary);
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: var(--font-xs);
  font-weight: 600;
  letter-spacing: 3px;
  z-index: 2;
  text-transform: uppercase;
  border: 1px solid var(--color-accent);
}

.factory-card-no {
  position: absolute;
  top: 24px;
  right: 24px;
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: var(--font-xs);
  font-weight: 500;
  letter-spacing: 2px;
  color: rgba(255, 255, 255, 0.7);
  z-index: 2;
  text-transform: uppercase;
}

.factory-card-no .num {
  color: var(--color-accent);
  font-size: var(--font-xl);
  font-weight: 700;
  letter-spacing: 0;
  margin-right: 4px;
}

.factory-card-body {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 32px;
  color: var(--color-white);
  z-index: 2;
}

.factory-card-title {
  font-size: var(--font-2xl);
  font-weight: 600;
  margin-bottom: 6px;
  letter-spacing: -0.5px;
}

.factory-card-sub {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: var(--font-xs);
  color: var(--color-accent);
  letter-spacing: 3px;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.factory-card-sub::after {
  content: "→";
  font-size: 1.2em;
  transition: transform var(--transition);
}

.factory-card:hover .factory-card-sub::after {
  transform: translateX(6px);
}

/* ---------- 工程案例 / 设计作品 ---------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.project-card {
  position: relative;
  background: var(--color-white);
  overflow: hidden;
  cursor: pointer;
  border-radius: 0;
  box-shadow: var(--shadow-sm);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-6px);
}

.project-card-image {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-bg-alt);
  position: relative;
}

.project-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card:hover .project-card-image img {
  transform: scale(1.08);
}

.project-card-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(10, 25, 41, 0.7) 100%);
  opacity: 0;
  transition: opacity var(--transition);
}

.project-card:hover .project-card-image::after {
  opacity: 1;
}

.project-card-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: var(--font-sm);
  letter-spacing: 3px;
  text-transform: uppercase;
  z-index: 2;
  opacity: 0;
  transition: opacity var(--transition);
}

.project-card:hover .project-card-overlay {
  opacity: 1;
}

.project-card-overlay::before,
.project-card-overlay::after {
  content: "";
  position: absolute;
  background: var(--color-accent);
}

.project-card-overlay::before {
  top: 20px;
  left: 20px;
  right: 20px;
  height: 1px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.6s ease;
}

.project-card:hover .project-card-overlay::before {
  transform: scaleX(1);
}

.project-card-overlay::after {
  bottom: 20px;
  left: 20px;
  right: 20px;
  height: 1px;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.6s ease;
}

.project-card:hover .project-card-overlay::after {
  transform: scaleX(1);
}

.project-card-body {
  padding: 24px;
  border-top: 1px solid var(--color-border);
}

.project-card-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--color-bg);
  color: var(--color-accent-dark);
  font-size: var(--font-xs);
  font-weight: 500;
  letter-spacing: 2px;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.project-card-title {
  font-size: var(--font-xl);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
  letter-spacing: -0.3px;
  transition: color var(--transition);
}

.project-card:hover .project-card-title {
  color: var(--color-accent-dark);
}

.project-card-location {
  font-size: var(--font-sm);
  color: var(--color-text-light);
  display: flex;
  align-items: center;
  gap: 6px;
}

.project-card-location::before {
  content: "◇";
  color: var(--color-accent);
  font-size: 10px;
}

/* ---------- 工程案例分类标签栏 ---------- */
.projects-tabs {
  padding: 0;
  background: var(--color-primary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
}
.projects-tabs::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}
.projects-tabs-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
  z-index: 1;
}
.projects-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 36px 20px;
  text-decoration: none;
  color: rgba(255, 255, 255, 0.7);
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
  transition: all 0.4s ease;
}
.projects-tab:last-child { border-right: none; }
.projects-tab::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.5s ease;
}
.projects-tab::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent, rgba(201, 169, 97, 0.05));
  opacity: 0;
  transition: opacity var(--transition);
}
.projects-tab:hover,
.projects-tab.active {
  color: var(--color-white);
}
.projects-tab:hover::before,
.projects-tab.active::before {
  width: 100%;
}
.projects-tab:hover::after,
.projects-tab.active::after {
  opacity: 1;
}
.projects-tab-no {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 4px;
}
.projects-tab-name {
  font-size: 16px;
  font-weight: 600;
  text-align: center;
  letter-spacing: 0.5px;
  line-height: 1.4;
}
.projects-tab-count {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 2px;
}

/* ---------- 工程案例分类区 ---------- */
.projects-category {
  padding: 120px 0 100px;
  background: var(--color-white);
  position: relative;
  overflow: hidden;
}
.projects-category::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(10, 25, 41, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 25, 41, 0.025) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
}
.projects-category-alt {
  background: var(--color-bg-alt);
}
.projects-category-watermark {
  position: absolute;
  right: -40px;
  bottom: -100px;
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 380px;
  font-weight: 900;
  color: rgba(10, 25, 41, 0.04);
  letter-spacing: -16px;
  line-height: 1;
  pointer-events: none;
  user-select: none;
  z-index: 0;
  font-variant-numeric: tabular-nums;
}
.projects-category-alt .projects-category-watermark {
  color: rgba(10, 25, 41, 0.05);
}
.projects-category .container { position: relative; z-index: 1; }

.projects-category-header {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 80px;
  align-items: start;
  margin-bottom: 72px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--color-border);
  position: relative;
}
.projects-category-header::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100px;
  height: 2px;
  background: var(--color-accent);
}
.projects-category-left {
  position: relative;
  padding-left: 24px;
  border-left: 3px solid var(--color-accent);
}
.projects-category-no {
  display: block;
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 5px;
  margin-bottom: 16px;
}
.projects-category-title {
  font-size: 38px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
  letter-spacing: -0.5px;
  margin: 0;
}
.projects-category-right {
  padding-top: 8px;
}
.projects-category-desc {
  font-size: 16px;
  line-height: 1.95;
  color: var(--color-text-light);
  margin: 0 0 24px;
  max-width: 760px;
}
.projects-category-stats {
  display: flex;
  gap: 48px;
  margin-top: 8px;
}
.projects-category-stat {
  display: flex;
  flex-direction: column;
}
.projects-category-stat-no {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 32px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -1px;
  line-height: 1;
}
.projects-category-stat-label {
  font-size: 12px;
  color: var(--color-text-light);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-top: 6px;
}

/* 工程案例卡片年度 + 位置 */
.project-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
}
.project-card-year {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent-dark);
  letter-spacing: 2px;
}

/* ---------- 设计作品分类标签栏 ---------- */
.designs-tabs {
  padding: 0;
  background: var(--color-primary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
}
.designs-tabs::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}
.designs-tabs-inner {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  position: relative;
  z-index: 1;
}
.designs-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 36px 20px;
  text-decoration: none;
  color: rgba(255, 255, 255, 0.7);
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  position: relative;
  transition: all 0.4s ease;
}
.designs-tab:last-child { border-right: none; }
.designs-tab::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.5s ease;
}
.designs-tab::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent, rgba(201, 169, 97, 0.05));
  opacity: 0;
  transition: opacity var(--transition);
}
.designs-tab:hover,
.designs-tab.active {
  color: var(--color-white);
}
.designs-tab:hover::before,
.designs-tab.active::before {
  width: 100%;
}
.designs-tab:hover::after,
.designs-tab.active::after {
  opacity: 1;
}
.designs-tab-no {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 11px;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 4px;
}
.designs-tab-name {
  font-size: 16px;
  font-weight: 600;
  text-align: center;
  letter-spacing: 0.5px;
  line-height: 1.4;
}
.designs-tab-count {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 2px;
}

/* ---------- 设计作品分类区 ---------- */
.designs-category {
  padding: 120px 0 100px;
  background: var(--color-white);
  position: relative;
  overflow: hidden;
}
.designs-category::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(10, 25, 41, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 25, 41, 0.025) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
}
.designs-category-alt {
  background: var(--color-bg-alt);
}
.designs-category-watermark {
  position: absolute;
  right: -40px;
  bottom: -100px;
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 380px;
  font-weight: 900;
  color: rgba(10, 25, 41, 0.04);
  letter-spacing: -16px;
  line-height: 1;
  pointer-events: none;
  user-select: none;
  z-index: 0;
  font-variant-numeric: tabular-nums;
}
.designs-category-alt .designs-category-watermark {
  color: rgba(10, 25, 41, 0.05);
}
.designs-category .container { position: relative; z-index: 1; }

.designs-category-header {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 80px;
  align-items: start;
  margin-bottom: 72px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--color-border);
  position: relative;
}
.designs-category-header::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100px;
  height: 2px;
  background: var(--color-accent);
}
.designs-category-left {
  position: relative;
  padding-left: 24px;
  border-left: 3px solid var(--color-accent);
}
.designs-category-no {
  display: block;
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 5px;
  margin-bottom: 16px;
}
.designs-category-title {
  font-size: 38px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
  letter-spacing: -0.5px;
  margin: 0;
}
.designs-category-right {
  padding-top: 8px;
}
.designs-category-desc {
  font-size: 16px;
  line-height: 1.95;
  color: var(--color-text-light);
  margin: 0 0 24px;
  max-width: 760px;
}

/* ---------- 设计作品网格 & 卡片 ---------- */
.designs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.design-card {
  position: relative;
  background: var(--color-white);
  overflow: hidden;
  cursor: pointer;
  border-radius: 0;
  box-shadow: var(--shadow-sm);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  color: inherit;
  display: block;
}

.design-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--color-accent);
  z-index: 3;
  transition: width 0.5s ease;
}
.design-card:hover::before { width: 100%; }

.design-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-8px);
}

.design-card-image {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-bg-alt);
  position: relative;
}

.design-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.design-card:hover .design-card-image img {
  transform: scale(1.1);
}

.design-card-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(10, 25, 41, 0.85) 100%);
  opacity: 0;
  transition: opacity var(--transition);
}

.design-card:hover .design-card-image::after {
  opacity: 1;
}

.design-card-tag {
  position: absolute;
  top: 20px;
  left: 20px;
  z-index: 2;
  display: inline-block;
  padding: 7px 16px;
  background: var(--color-accent);
  color: var(--color-primary);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 4px;
}

.design-card-no {
  position: absolute;
  top: 20px;
  right: 20px;
  z-index: 2;
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-white);
  letter-spacing: 3px;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.6);
}

.design-card-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  opacity: 0;
  transition: opacity var(--transition);
}

.design-card:hover .design-card-overlay {
  opacity: 1;
}

.design-card-overlay-text {
  padding: 14px 36px;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 5px;
  background: rgba(10, 25, 41, 0.7);
  backdrop-filter: blur(8px);
}

.design-card-body {
  padding: 28px 24px;
  border-top: 1px solid var(--color-border);
  position: relative;
}

.design-card-title {
  font-size: var(--font-xl);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
  letter-spacing: -0.3px;
  transition: color var(--transition);
}

.design-card:hover .design-card-title {
  color: var(--color-accent-dark);
}

.design-card-location {
  font-size: var(--font-sm);
  color: var(--color-text-light);
  display: flex;
  align-items: center;
  gap: 6px;
}

.design-card-location::before {
  content: "◇";
  color: var(--color-accent);
  font-size: 10px;
}

/* ---------- intro section 标题装饰 ---------- */
.projects-intro,
.designs-intro {
  position: relative;
  overflow: hidden;
}
.projects-intro::before,
.designs-intro::before {
  content: "";
  position: absolute;
  top: 50%;
  right: -80px;
  transform: translateY(-50%);
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 280px;
  font-weight: 900;
  color: rgba(10, 25, 41, 0.035);
  letter-spacing: -10px;
  pointer-events: none;
  user-select: none;
  z-index: 0;
  line-height: 1;
}
.projects-intro::before { content: "PROJECTS"; }
.designs-intro::before { content: "DESIGNS"; }
.projects-intro .container,
.designs-intro .container { position: relative; z-index: 1; }

/* ---------- intro 编辑式布局 ---------- */
.projects-intro-grid,
.designs-intro-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  max-width: 1100px;
}
.projects-intro-eyebrow,
.designs-intro-eyebrow {
  display: inline-block;
  padding: 8px 18px;
  background: var(--color-primary);
  color: var(--color-accent);
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 6px;
  margin-bottom: 24px;
}
.projects-intro-title,
.designs-intro-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.45;
  letter-spacing: -0.5px;
  margin: 0;
  max-width: 960px;
}
.projects-intro-divider,
.designs-intro-divider {
  width: 120px;
  height: 3px;
  background: linear-gradient(to right, var(--color-accent), transparent);
  margin-top: 32px;
}
.projects-intro-meta,
.designs-intro-meta {
  display: flex;
  gap: 80px;
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}
.projects-intro-meta-item,
.designs-intro-meta-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.projects-intro-meta-item .meta-no,
.designs-intro-meta-item .meta-no {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  letter-spacing: -1px;
}
.projects-intro-meta-item .meta-label,
.designs-intro-meta-item .meta-label {
  font-size: 12px;
  color: var(--color-text-light);
  letter-spacing: 3px;
  text-transform: uppercase;
}

/* ---------- 章节索引（替代原 tab 栏） ---------- */
.projects-index,
.designs-index {
  background: var(--color-primary);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.projects-index::before,
.designs-index::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}
.projects-index-eyebrow,
.designs-index-eyebrow {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 6px;
  margin-bottom: 40px;
}
.projects-index-list,
.designs-index-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}
.designs-index-list {
  grid-template-columns: repeat(5, 1fr);
}
.projects-index-item,
.designs-index-item {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 24px 32px;
  text-decoration: none;
  color: rgba(255, 255, 255, 0.75);
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  transition: all 0.4s ease;
}
.projects-index-item:last-child,
.designs-index-item:last-child { border-right: none; }
.projects-index-item::before,
.designs-index-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.5s ease;
}
.projects-index-item:hover,
.designs-index-item:hover {
  background: rgba(255, 255, 255, 0.03);
  color: var(--color-white);
}
.projects-index-item:hover::before,
.designs-index-item:hover::before { width: 100%; }
.projects-index-no,
.designs-index-no {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 32px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  letter-spacing: -1px;
}
.projects-index-name,
.designs-index-name {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.3px;
}
.projects-index-count,
.designs-index-count {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 3px;
  margin-top: 4px;
}

/* ---------- 章节块（核心杂志级布局） ---------- */
.projects-chapter,
.designs-chapter {
  padding: 120px 0 100px;
  background: var(--color-white);
  position: relative;
  overflow: hidden;
}
.projects-chapter-alt,
.designs-chapter-alt {
  background: var(--color-bg-alt);
}
.projects-chapter::before,
.designs-chapter::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(10, 25, 41, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 25, 41, 0.02) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
}
.projects-chapter-watermark,
.designs-chapter-watermark {
  position: absolute;
  right: -40px;
  top: 60px;
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 220px;
  font-weight: 900;
  color: rgba(10, 25, 41, 0.035);
  letter-spacing: -10px;
  line-height: 1;
  pointer-events: none;
  user-select: none;
  z-index: 0;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.projects-chapter-alt .projects-chapter-watermark,
.designs-chapter-alt .designs-chapter-watermark {
  color: rgba(10, 25, 41, 0.045);
}
.projects-chapter .container,
.designs-chapter .container { position: relative; z-index: 1; }

/* 章节头部 */
.projects-chapter-header,
.designs-chapter-header {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 96px;
  align-items: start;
  margin-bottom: 80px;
  padding-bottom: 56px;
  border-bottom: 1px solid var(--color-border);
  position: relative;
}
.projects-chapter-header::after,
.designs-chapter-header::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 120px;
  height: 3px;
  background: var(--color-accent);
}
.projects-chapter-header-left,
.designs-chapter-header-left {
  position: relative;
}
.projects-chapter-no,
.designs-chapter-no {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 24px;
}
.projects-chapter-no .chapter-no-num,
.designs-chapter-no .chapter-no-num {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 96px;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  letter-spacing: -4px;
}
.projects-chapter-no .chapter-no-label,
.designs-chapter-no .chapter-no-label {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 6px;
  position: relative;
  top: -8px;
}
.projects-chapter-title,
.designs-chapter-title {
  font-size: 44px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
  letter-spacing: -1px;
  margin: 0;
  padding-left: 24px;
  border-left: 4px solid var(--color-accent);
}
.projects-chapter-header-right,
.designs-chapter-header-right {
  padding-top: 24px;
}
.projects-chapter-desc,
.designs-chapter-desc {
  font-size: 17px;
  line-height: 2;
  color: var(--color-text);
  margin: 0 0 32px;
  max-width: 760px;
}
.projects-chapter-desc .drop-cap,
.designs-chapter-desc .drop-cap {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 56px;
  font-weight: 700;
  color: var(--color-accent);
  float: left;
  line-height: 0.9;
  margin: 6px 12px 0 0;
}
.projects-chapter-stats,
.designs-chapter-stats {
  display: flex;
  gap: 64px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}
.projects-chapter-stat,
.designs-chapter-stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.projects-chapter-stat-no,
.designs-chapter-stat-no {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 36px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  letter-spacing: -1px;
}
.projects-chapter-stat-label,
.designs-chapter-stat-label {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 11px;
  color: var(--color-text-light);
  letter-spacing: 3px;
  text-transform: uppercase;
}

/* 首屏大图项目 */
.projects-hero,
.designs-hero {
  display: block;
  text-decoration: none;
  color: inherit;
  margin-bottom: 60px;
}
.projects-hero-image,
.designs-hero-image {
  position: relative;
  aspect-ratio: 16 / 8;
  overflow: hidden;
  background: var(--color-bg-alt);
}
.projects-hero-image img,
.designs-hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}
.projects-hero:hover .projects-hero-image img,
.designs-hero:hover .designs-hero-image img {
  transform: scale(1.05);
}
.projects-hero-image::after,
.designs-hero-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(10, 25, 41, 0.4) 100%);
  pointer-events: none;
}
.projects-hero-tag,
.designs-hero-tag {
  position: absolute;
  top: 32px;
  left: 32px;
  z-index: 2;
  padding: 10px 20px;
  background: var(--color-accent);
  color: var(--color-primary);
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 5px;
}
.projects-hero-cta,
.designs-hero-cta {
  position: absolute;
  bottom: 32px;
  right: 32px;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 28px;
  background: rgba(10, 25, 41, 0.85);
  backdrop-filter: blur(12px);
  color: var(--color-accent);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 4px;
  opacity: 0;
  transform: translateX(20px);
  transition: all 0.5s ease;
}
.projects-hero:hover .projects-hero-cta,
.designs-hero:hover .designs-hero-cta {
  opacity: 1;
  transform: translateX(0);
}
.hero-cta-arrow {
  font-size: 18px;
}
.projects-hero-meta,
.designs-hero-meta {
  padding: 40px 0 32px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 48px;
  align-items: start;
}
.projects-hero-no,
.designs-hero-no {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 4px;
  padding-top: 16px;
}
.projects-hero-title,
.designs-hero-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 24px;
  line-height: 1.3;
  letter-spacing: -0.5px;
  transition: color var(--transition);
}
.projects-hero:hover .projects-hero-title,
.designs-hero:hover .designs-hero-title {
  color: var(--color-accent-dark);
}
.projects-hero-info,
.designs-hero-info {
  display: flex;
  gap: 48px;
}
.projects-hero-info-item,
.designs-hero-info-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.info-label {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 11px;
  color: var(--color-text-light);
  letter-spacing: 3px;
}
.info-value {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.3px;
}

/* 其余项目 - 横向列表 */
.projects-list,
.designs-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: 1px solid var(--color-border);
}
.projects-list-item,
.designs-list-item {
  display: grid;
  grid-template-columns: 120px 240px 1fr auto;
  gap: 32px;
  align-items: center;
  padding: 24px 0;
  text-decoration: none;
  color: inherit;
  border-bottom: 1px solid var(--color-border);
  position: relative;
  transition: all 0.4s ease;
}
.projects-list-item::before,
.designs-list-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 0;
  height: 100%;
  background: linear-gradient(to right, rgba(201, 169, 97, 0.04), transparent);
  transition: width 0.5s ease;
  z-index: -1;
}
.projects-list-item:hover::before,
.designs-list-item:hover::before {
  width: 100%;
}
.projects-list-item:hover,
.designs-list-item:hover {
  padding-left: 24px;
}
.projects-list-no,
.designs-list-no {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 3px;
}
.projects-list-image,
.designs-list-image {
  width: 240px;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-bg-alt);
}
.projects-list-image img,
.designs-list-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}
.projects-list-item:hover .projects-list-image img,
.designs-list-item:hover .designs-list-image img {
  transform: scale(1.08);
}
.projects-list-title,
.designs-list-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-primary);
  margin: 0 0 8px;
  letter-spacing: -0.3px;
  transition: color var(--transition);
}
.projects-list-item:hover .projects-list-title,
.designs-list-item:hover .designs-list-title {
  color: var(--color-accent-dark);
}
.projects-list-meta,
.designs-list-meta {
  display: flex;
  gap: 16px;
  font-size: 13px;
  color: var(--color-text-light);
  letter-spacing: 0.5px;
}
.projects-list-year,
.designs-list-year {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-weight: 600;
  color: var(--color-accent-dark);
  letter-spacing: 2px;
}
.projects-list-arrow,
.designs-list-arrow {
  font-size: 24px;
  color: var(--color-text-light);
  transition: all 0.4s ease;
}
.projects-list-item:hover .projects-list-arrow,
.designs-list-item:hover .designs-list-arrow {
  color: var(--color-accent);
  transform: translateX(8px);
}

.title-divider {
  display: inline-block;
  width: 80px;
  height: 2px;
  background: linear-gradient(to right, var(--color-accent), transparent);
}

/* ---------- 内页通用 ---------- */
.page-banner {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--color-white);
  padding-top: 80px;
  padding-bottom: 60px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  overflow: hidden;
}

/* Banner 真实背景图（按页面定制）+ Ken Burns 缓慢推进 */
.page-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(201, 169, 97, 0.2) 0%, transparent 50%),
    radial-gradient(circle at 80% 30%, rgba(201, 169, 97, 0.15) 0%, transparent 50%);
}

/* Banner 金线网格底纹 */
.page-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(201, 169, 97, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 169, 97, 0.05) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
}

/* ============ Banner 高端背景图系统 ============ */

/* Banner 真实照片背景层（在 ::before 渐变之上，::after 网格之下） */
.page-banner .banner-photo {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
  animation: bannerKenBurns 18s ease-out infinite alternate;
  will-change: transform;
}

@keyframes bannerKenBurns {
  0%   { transform: scale(1.05) translate(-1%, -0.5%); }
  100% { transform: scale(1.18) translate(1.5%, -2%); }
}

/* Banner 暗角（电影感 vignette） */
.page-banner .banner-vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center,
    transparent 35%,
    rgba(0, 0, 0, 0.45) 100%);
  pointer-events: none;
  z-index: 2;
}

/* Banner 全屏暗化遮罩（覆盖中央，让 banner 文字在亮色图片上也清晰）
 * 用法：在 .banner-photo 之后插入 <div class="banner-photo-shade"></div>
 * z-index 介于 banner-photo (0) 和 banner-vignette (2) 之间 */
.page-banner .banner-photo-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 25, 41, 0.78) 0%, rgba(10, 25, 41, 0.55) 100%);
  pointer-events: none;
  z-index: 1;
}

/* Banner 装饰元素（线、角） */
.page-banner-line,
.page-banner-corner { z-index: 3; }

/* Banner 文字内容 */
.page-banner-content { position: relative; z-index: 4; }

/* 三大模块 Banner 背景图（每页用一张最契合主题的照片） */

/* 四大建筑体系：现代预制建筑外观（modular 别墅） */
.banner-systems {
  background-image:
    linear-gradient(135deg, rgba(10, 25, 41, 0.78) 0%, rgba(10, 25, 41, 0.55) 100%),
    url('/static/images/systems/modular.jpg');
}

/* 四大建筑体系 banner 4 张图轮播（fade 切换） */
.banner-systems-slide {
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
}
.banner-systems-slide.is-active {
  opacity: 1;
}

/* 生产工厂：工厂航拍/车间内部（chonburi 工厂） */
.banner-factories {
  background-image:
    linear-gradient(135deg, rgba(10, 25, 41, 0.78) 0%, rgba(10, 25, 41, 0.55) 100%),
    url('/static/images/factories/chonburi.jpg');
}

/* 我要建厂：建筑工地施工实景（在建中的预制建筑楼板） */
.banner-build {
  background-image:
    linear-gradient(135deg, rgba(10, 25, 41, 0.7) 0%, rgba(10, 25, 41, 0.5) 100%),
    url('/static/images/equipment/concrete.jpg');
}

/* 关于我们：装配式预制工厂车间（AI 专属图） */
.banner-about {
  background-image:
    linear-gradient(135deg, rgba(10, 25, 41, 0.78) 0%, rgba(10, 25, 41, 0.55) 100%),
    url('/static/images/about/about-banner.jpg');
}

/* 工程案例：已建成的高层公寓/酒店实景 */
.banner-projects {
  background-image:
    linear-gradient(135deg, rgba(10, 25, 41, 0.78) 0%, rgba(10, 25, 41, 0.55) 100%),
    url('/static/images/projects/project_01.jpg');
}

/* 设计作品：建筑效果图/高端别墅空间 */
.banner-designs {
  background-image:
    linear-gradient(135deg, rgba(10, 25, 41, 0.78) 0%, rgba(10, 25, 41, 0.55) 100%),
    url('/static/images/designs/design_02.jpg');
}

/* 减少动效偏好时关闭 Ken Burns */
@media (prefers-reduced-motion: reduce) {
  .page-banner .banner-photo {
    animation: none;
    transform: scale(1.1);
  }
}

/* Banner 顶部 + 底部金色细线 */
.page-banner-line {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: min(640px, 80%);
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-accent), transparent);
  z-index: 1;
}
.page-banner-line.top { top: 100px; }
.page-banner-line.bottom { bottom: 80px; }

/* Banner 角落 L 型装饰 */
.page-banner-corner {
  position: absolute;
  width: 24px;
  height: 24px;
  border: 2px solid var(--color-accent);
  z-index: 1;
}
.page-banner-corner.tl { top: 100px; left: 32px; border-right: none; border-bottom: none; }
.page-banner-corner.tr { top: 100px; right: 32px; border-left: none; border-bottom: none; }
.page-banner-corner.bl { bottom: 80px; left: 32px; border-right: none; border-top: none; }
.page-banner-corner.br { bottom: 80px; right: 32px; border-left: none; border-top: none; }

.page-banner-content {
  position: relative;
  z-index: 2;
  padding: var(--space-xl) 0;
}

/* Banner 序号 01/章节 */
.page-banner-no {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: var(--font-sm);
  letter-spacing: 4px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 20px;
  text-transform: uppercase;
}
.page-banner-no .num {
  color: var(--color-accent);
  font-size: var(--font-xl);
  font-weight: 700;
  letter-spacing: 0;
  font-variant-numeric: tabular-nums;
}

.page-banner h1 {
  font-size: clamp(40px, 5.5vw, var(--font-5xl));
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 16px;
  text-shadow: 0 2px 16px rgba(0, 0, 0, 0.4);
}

.page-banner h1 .accent {
  display: block;
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 0.32em;
  font-weight: 400;
  letter-spacing: 10px;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-top: 18px;
}

.page-banner p {
  font-size: var(--font-lg);
  color: rgba(255, 255, 255, 0.8);
  max-width: 720px;
  margin: 0 auto;
  line-height: 1.8;
}

.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
  font-size: var(--font-sm);
  color: rgba(255, 255, 255, 0.6);
}

.breadcrumb a:hover {
  color: var(--color-accent);
}

.breadcrumb-sep {
  color: rgba(255, 255, 255, 0.4);
}

/* ---------- 关于我们 ---------- */
.about-section {
  padding: var(--space-2xl) 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.about-image {
  position: relative;
  aspect-ratio: 4 / 5;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  overflow: hidden;
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about-image::before {
  content: "";
  position: absolute;
  top: -20px;
  left: -20px;
  right: 60%;
  bottom: 60%;
  border: 2px solid var(--color-accent);
  z-index: 2;
}

.about-image::after {
  content: "";
  position: absolute;
  bottom: -20px;
  right: -20px;
  left: 60%;
  top: 60%;
  border: 2px solid var(--color-accent);
  z-index: 2;
}

.about-text {
  padding: 0 var(--space-md);
}

.about-text .eyebrow {
  display: inline-block;
  font-size: var(--font-sm);
  font-weight: 500;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.about-text h2 {
  font-size: var(--font-4xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
  line-height: 1.2;
}

.about-text p {
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: var(--space-sm);
  font-size: var(--font-lg);
}

.about-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: var(--space-md);
}

.about-feature {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.about-feature-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  background: var(--color-bg);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  border-radius: 2px;
}

.about-feature-text h4 {
  font-size: var(--font-lg);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.about-feature-text p {
  font-size: var(--font-sm);
  margin-bottom: 0;
}

/* ---------- 建筑体系详情 ---------- */
.system-detail-section {
  padding: var(--space-xl) 0;
}

.system-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
  align-items: center;
}

.system-intro-text .eyebrow {
  display: inline-block;
  font-size: var(--font-sm);
  font-weight: 500;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.system-intro-text h2 {
  font-size: var(--font-4xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
  line-height: 1.2;
}

.system-intro-text p {
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: var(--space-sm);
}

.system-intro-image {
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  overflow: hidden;
}

.system-intro-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: var(--space-lg);
}

.advantage-item {
  padding: 32px 24px;
  background: var(--color-white);
  border-left: 3px solid var(--color-accent);
  transition: all var(--transition);
  box-shadow: var(--shadow-sm);
}

.advantage-item:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
}

.advantage-item-title {
  font-size: var(--font-lg);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.advantage-item-desc {
  color: var(--color-text-light);
  font-size: var(--font-sm);
  line-height: 1.7;
}

.applicable-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: var(--space-md);
}

.applicable-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: var(--color-bg);
  color: var(--color-primary);
  font-weight: 500;
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.applicable-item:hover {
  background: var(--color-accent);
  color: var(--color-primary);
}

.applicable-item::before {
  content: "▎";
  color: var(--color-accent);
  font-size: 18px;
}

.applicable-item:hover::before {
  color: var(--color-primary);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.gallery-item {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-bg-alt);
  cursor: pointer;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s ease;
}

.gallery-item:hover img {
  transform: scale(1.08);
}

/* ---------- 联系我们 ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  padding: var(--space-xl) 0;
}

/* 3 列布局：联系方式 + 社交媒体 + 公司地址（桌面端一行）
   用 minmax(0, 1fr) 而非 1fr，避免被 col 1 长邮箱 min-content 撑宽不均分
   stretch 让三列等高，内部 flex column + flex:1 让内容填满整张卡片 */
.contact-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
  align-items: stretch;
}
.contact-info-block {
  display: flex;
  flex-direction: column;
}
.contact-info-list {
  flex: 1;
}
.contact-info-block > div[style*="border-top"] {
  flex: 1;
  display: flex;
  flex-direction: column;
  margin-top: auto;
  padding-top: 24px;
}
.contact-address-body {
  display: flex;
  flex-direction: column;
  gap: 20px;
  flex: 1;
}
.contact-mini-map {
  position: relative;
  flex: 1;
  min-height: 240px;
  border-radius: 4px;
  background: linear-gradient(135deg, #e8eef5 0%, #d4dce8 100%);
  border: 1px solid var(--color-border);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.contact-mini-map-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(10, 25, 41, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 25, 41, 0.08) 1px, transparent 1px);
  background-size: 24px 24px;
}
.contact-mini-map-pin {
  position: relative;
  font-size: 48px;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.25));
  z-index: 1;
  animation: pinBounce 2s ease-in-out infinite;
}
.contact-mini-map-label {
  position: absolute;
  bottom: 14px;
  left: 14px;
  right: 14px;
  text-align: center;
  font-size: 12px;
  color: var(--color-primary);
  background: rgba(255, 255, 255, 0.96);
  padding: 8px 12px;
  border-radius: 2px;
  font-weight: 500;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 6px rgba(10, 25, 41, 0.12);
}
@keyframes pinBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.contact-info-block {
  padding: var(--space-lg);
  background: var(--color-white);
  border-radius: 4px;
  box-shadow: var(--shadow-sm);
  border-top: 3px solid var(--color-accent);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
.contact-info-block:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.contact-info-title {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-border);
}

.contact-info-title h3 {
  font-size: var(--font-2xl);
  font-weight: 600;
  color: var(--color-primary);
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 16px;
  border-radius: 2px;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.contact-item:hover {
  background: var(--color-bg);
  border-color: var(--color-accent);
}

.contact-item-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  background: var(--color-primary);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  border-radius: 2px;
}

.contact-item-content {
  flex: 1;
}

.contact-item-label {
  font-size: var(--font-sm);
  color: var(--color-text-light);
  margin-bottom: 4px;
}

.contact-item-value {
  font-size: var(--font-lg);
  font-weight: 600;
  color: var(--color-primary);
}

.contact-socials {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  margin-top: var(--space-md);
}

.social-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 16px;
  background: var(--color-white);
  color: var(--color-primary);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
  text-align: center;
  border-radius: 2px;
}

.social-link:hover {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
  transform: translateY(-4px);
}

.social-link-icon {
  width: 36px;
  height: 36px;
  background: var(--color-bg);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  border-radius: 50%;
  transition: all var(--transition-fast);
}

/* 联系我们页社交图标品牌色 */
.social-link-icon.icon-facebook       { background: #1877F2; color: #fff; }
.social-link-icon.icon-tiktok         { background: #000000; color: #fff; }
.social-link-icon.icon-xiaohongshu    { background: #FF2442; color: #fff; }
.social-link-icon.icon-wechat-channels{ background: #07C160; color: #fff; }
.social-link-icon.icon-douyin         { background: #000000; color: #fff; }
.social-link-icon svg { display: block; }
.social-link:hover .social-link-icon { transform: scale(1.08); }

.social-link:hover .social-link-icon {
  background: var(--color-accent);
  color: var(--color-primary);
}

.social-link-name {
  font-size: var(--font-sm);
  font-weight: 500;
}

/* ---------- 设备 ---------- */
.equipment-section {
  margin-bottom: var(--space-2xl);
}

.equipment-category-header {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-border);
}

.equipment-category-header h3 {
  font-size: var(--font-3xl);
  font-weight: 700;
  color: var(--color-primary);
}

.equipment-category-header .count {
  color: var(--color-text-light);
  font-size: var(--font-base);
}

.equipment-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.equipment-card {
  background: var(--color-white);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.equipment-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.equipment-card-image {
  aspect-ratio: 4 / 3;
  background: var(--color-bg-alt);
  overflow: hidden;
}

.equipment-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.equipment-card:hover .equipment-card-image img {
  transform: scale(1.05);
}

.equipment-card-body {
  padding: 20px;
}

.equipment-card-name {
  font-size: var(--font-lg);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.equipment-card-desc {
  font-size: var(--font-sm);
  color: var(--color-text-light);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===========================================
   我要建厂 模块专属样式（位于 /equipment）
   =========================================== */

/* ---------- 第一屏 全屏 Banner ---------- */
.build-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--color-white);
  overflow: hidden;
  padding: 120px 0 80px;
}

.build-hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(10, 25, 41, 0.7), rgba(10, 25, 41, 0.5)),
    url('/static/images/equipment/precast-factory-bg.jpg') center/cover no-repeat;
  z-index: -2;
  animation: bannerKenBurns 22s ease-out infinite alternate;
  will-change: transform;
}

.build-hero-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(201, 169, 97, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 169, 97, 0.06) 1px, transparent 1px);
  background-size: 80px 80px;
  z-index: -1;
  pointer-events: none;
}

.build-hero-content {
  max-width: 920px;
  margin: 0 auto;
  padding: var(--space-xl) 0;
  position: relative;
  z-index: 1;
}

.build-hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: var(--font-sm);
  letter-spacing: 6px;
  color: var(--color-accent);
  margin-bottom: 28px;
  text-transform: uppercase;
}
.build-hero-eyebrow::before,
.build-hero-eyebrow::after {
  content: "";
  width: 40px;
  height: 1px;
  background: var(--color-accent);
}

.build-hero-title {
  font-size: clamp(48px, 6vw, 84px);
  font-weight: 800;
  letter-spacing: -2px;
  line-height: 1.1;
  margin-bottom: 24px;
  text-shadow: 0 4px 24px rgba(0, 0, 0, 0.6);
}

.build-hero-subtitle {
  font-size: clamp(18px, 2vw, 22px);
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: 40px;
  letter-spacing: 1px;
  font-weight: 500;
}

.build-hero-desc {
  max-width: 780px;
  margin: 0 auto 48px;
  text-align: left;
}

.build-hero-desc p {
  font-size: var(--font-base);
  line-height: 1.9;
  color: rgba(255, 255, 255, 0.82);
  margin-bottom: 14px;
}

.btn-large {
  padding: 20px 56px !important;
  font-size: var(--font-lg) !important;
  letter-spacing: 2px !important;
}

/* ---------- 第二屏 为什么投资 ---------- */
.build-why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.build-why-item {
  text-align: center;
  padding: 48px 32px;
  border-right: 1px solid var(--color-border);
  transition: all var(--transition);
  position: relative;
}
.build-why-item:last-child { border-right: none; }

.build-why-item:hover {
  background: var(--color-bg);
  transform: translateY(-4px);
}

.build-why-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}

.build-why-title {
  font-size: var(--font-lg);
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1.5;
}

/* ---------- 第三屏 为什么选择 VBV ---------- */
.build-adv-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

.build-adv-item {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-xl);
  align-items: center;
  padding: var(--space-lg);
  background: rgba(255, 255, 255, 0.03);
  border-left: 3px solid var(--color-accent);
  transition: all var(--transition);
}

.build-adv-item:hover {
  background: rgba(255, 255, 255, 0.05);
  transform: translateX(4px);
}

.build-adv-item.reverse {
  grid-template-columns: 2fr 1fr;
  border-left: none;
  border-right: 3px solid var(--color-accent);
}
.build-adv-item.reverse:hover { transform: translateX(-4px); }

.build-adv-no {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 96px;
  font-weight: 800;
  color: rgba(201, 169, 97, 0.18);
  letter-spacing: -4px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.build-adv-title {
  font-size: var(--font-2xl);
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}

.build-adv-desc {
  font-size: var(--font-base);
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.8;
}

/* ---------- 第四屏 方案对比 ---------- */
.build-compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: var(--space-lg);
}

.build-compare-col {
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  background: var(--color-white);
  position: relative;
}

.build-compare-trad { border-top: 4px solid #c0392b; }
.build-compare-vbv {
  border-top: 4px solid var(--color-accent);
  background: linear-gradient(180deg, rgba(201, 169, 97, 0.04), transparent);
}

.build-compare-head {
  font-size: var(--font-2xl);
  font-weight: 700;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid var(--color-border);
  letter-spacing: -0.3px;
}

.build-compare-trad .build-compare-head { color: #c0392b; }
.build-compare-vbv .build-compare-head { color: var(--color-accent-dark); }

.build-compare-list-bad li,
.build-compare-list-good li {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  font-size: var(--font-base);
  border-bottom: 1px dashed var(--color-border);
}

.build-compare-list-bad li:last-child,
.build-compare-list-good li:last-child { border-bottom: none; }

.build-compare-x {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #c0392b;
  color: #fff;
  font-weight: 700;
  border-radius: 50%;
  font-size: var(--font-sm);
}

.build-compare-check {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent);
  color: var(--color-primary);
  font-weight: 700;
  border-radius: 50%;
  font-size: var(--font-base);
}

.build-compare-list-bad li { color: #999; }

.build-compare-footer {
  margin-top: var(--space-lg);
  text-align: center;
  font-size: var(--font-xl);
  color: var(--color-primary);
  font-weight: 500;
  letter-spacing: 1px;
}

/* ---------- 第五屏 建厂流程时间轴 ---------- */
.build-process-timeline {
  display: flex;
  align-items: stretch;
  margin-top: var(--space-lg);
  overflow-x: auto;
  padding-bottom: 12px;
}

.build-process-step {
  flex: 1;
  text-align: center;
  padding: 24px 12px;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  min-width: 110px;
}

.build-process-step:last-child { border-right: none; }

.build-process-step::after {
  content: "›";
  position: absolute;
  right: -10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-accent);
  font-size: 24px;
  z-index: 1;
}
.build-process-step:last-child::after { content: ""; }

.build-process-no {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: var(--font-3xl);
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: -1px;
  margin-bottom: 12px;
  font-variant-numeric: tabular-nums;
}

.build-process-label {
  font-size: var(--font-sm);
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: 1px;
}

/* ---------- 第六屏 一站式服务 ---------- */
.build-services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: var(--space-lg);
}

.build-service-card {
  background: var(--color-white);
  padding: 36px;
  border: 1px solid var(--color-border);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.build-service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent);
}

.build-service-card::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.build-service-card:hover::after { transform: scaleX(1); }

.build-service-card-wide {
  grid-column: span 2;
}

.build-service-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: var(--color-primary);
  color: var(--color-accent);
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 20px;
}

.build-service-title {
  font-size: var(--font-xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
  letter-spacing: -0.3px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

.build-service-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.build-service-card li {
  padding: 8px 0 8px 20px;
  font-size: var(--font-base);
  color: var(--color-text-light);
  position: relative;
  line-height: 1.7;
}

.build-service-card li::before {
  content: "◆";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-size: 8px;
  top: 14px;
}

/* ---------- 第七屏 工厂系统组成 ---------- */
.build-systems-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: var(--space-lg);
}

.build-system-card {
  background: var(--color-white);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  display: block;
  color: inherit;
}

.build-system-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-accent);
}

.build-system-image {
  height: 220px;
  position: relative;
  overflow: hidden;
}

.build-system-image::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(10, 25, 41, 0.85) 100%);
}

.build-system-img-mold {
  background:
    linear-gradient(135deg, rgba(10, 25, 41, 0.35), rgba(10, 25, 41, 0.15)),
    url("../images/equipment/mold-system-bg.jpg") center/cover no-repeat;
}

.build-system-img-concrete {
  background:
    linear-gradient(135deg, rgba(10, 25, 41, 0.35), rgba(10, 25, 41, 0.15)),
    url("../images/equipment/concrete-system-bg.jpg") center/cover no-repeat;
}

.build-system-img-steel {
  background:
    linear-gradient(135deg, rgba(10, 25, 41, 0.35), rgba(10, 25, 41, 0.15)),
    url("../images/equipment/rebar-system-bg.jpg") center/cover no-repeat;
}

.build-system-img-crane {
  background:
    linear-gradient(135deg, rgba(10, 25, 41, 0.35), rgba(10, 25, 41, 0.15)),
    url("../images/equipment/crane-system-bg.jpg") center/cover no-repeat;
}

.build-system-title {
  font-size: var(--font-xl);
  font-weight: 700;
  color: var(--color-primary);
  padding: 24px 28px 8px;
  letter-spacing: -0.3px;
}

.build-system-desc {
  font-size: var(--font-sm);
  color: var(--color-text-light);
  padding: 0 28px 16px;
  line-height: 1.7;
}

.build-system-link {
  display: block;
  padding: 12px 28px 24px;
  font-size: var(--font-sm);
  color: var(--color-accent-dark);
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 600;
  transition: color var(--transition);
}

.build-system-card:hover .build-system-link { color: var(--color-accent); }

/* ---------- 第八屏 适合客户 ---------- */
.build-customer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.build-customer-item {
  text-align: center;
  padding: 56px 24px;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  transition: background var(--transition);
}
.build-customer-item:last-child { border-right: none; }

.build-customer-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.build-customer-item:hover::before { width: 100%; }
.build-customer-item:hover { background: rgba(201, 169, 97, 0.04); }

.build-customer-no {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 56px;
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: -2px;
  margin-bottom: 16px;
  font-variant-numeric: tabular-nums;
}

.build-customer-name {
  font-size: var(--font-lg);
  font-weight: 600;
  color: var(--color-white);
  letter-spacing: 2px;
}

/* ---------- 第九屏 FAQ Accordion ---------- */
.build-faq-list {
  max-width: 880px;
  margin: var(--space-lg) auto 0;
}

.build-faq-item {
  border-bottom: 1px solid var(--color-border);
}

.build-faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 0;
  background: transparent;
  border: none;
  text-align: left;
  font-size: var(--font-lg);
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  transition: color var(--transition-fast);
}

.build-faq-q:hover { color: var(--color-accent-dark); }

.build-faq-toggle {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  color: var(--color-accent-dark);
  font-size: 22px;
  font-weight: 300;
  transition: all var(--transition);
}

.build-faq-item.open .build-faq-toggle {
  background: var(--color-accent);
  color: var(--color-primary);
  transform: rotate(180deg);
}

.build-faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.build-faq-item.open .build-faq-a {
  max-height: 240px;
}

.build-faq-a p {
  padding: 0 0 24px;
  font-size: var(--font-base);
  color: var(--color-text-light);
  line-height: 1.8;
}

/* ---------- 第十屏 CTA ---------- */
.build-cta {
  background:
    linear-gradient(135deg, rgba(10, 25, 41, 0.92), rgba(10, 25, 41, 0.85)),
    linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .build-why-grid { grid-template-columns: repeat(2, 1fr); }
  .build-why-item:nth-child(2n) { border-right: none; }
  .build-customer-grid { grid-template-columns: repeat(2, 1fr); }
  .build-customer-item:nth-child(2n) { border-right: none; }
  .build-services-grid,
  .build-systems-grid { grid-template-columns: 1fr; }
  .build-service-card-wide { grid-column: span 1; }
  .build-compare-grid { grid-template-columns: 1fr; }
  .build-adv-item,
  .build-adv-item.reverse {
    grid-template-columns: 1fr;
    border-right: none;
    border-left: 3px solid var(--color-accent);
  }
  .build-adv-no { font-size: 64px; }
}

@media (max-width: 768px) {
  /* 投资理由 / 客户类型在移动端保持 2 列网格，不退化为单列列表 */
  .build-why-grid,
  .build-customer-grid { grid-template-columns: repeat(2, 1fr); }
  .build-why-item,
  .build-customer-item {
    border-right: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
  }
  .build-why-item:nth-child(2n),
  .build-customer-item:nth-child(2n) { border-right: none; }
  .build-why-item:nth-last-child(-n+2),
  .build-customer-item:nth-last-child(-n+2) { border-bottom: none; }
  .build-process-step { min-width: 90px; padding: 16px 8px; }
  .build-process-no { font-size: var(--font-2xl); }
  .build-process-label { font-size: var(--font-xs); }

  /* 为什么选择 VBV：5 项在移动端改 2 列网格（不堆成 5 行单列） */
  .build-adv-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
  }
  .build-adv-item,
  .build-adv-item.reverse {
    grid-template-columns: 1fr;
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    border-left: 3px solid var(--color-accent);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 24px 16px;
  }
  .build-adv-item:nth-child(2n),
  .build-adv-item.reverse:nth-child(2n) { border-right: none; }
  /* 5 项时只有一项单独成行，需去掉它的右边框和底边 */
  .build-adv-item:last-child,
  .build-adv-item.reverse:last-child { border-right: none; }
  .build-adv-no { font-size: 48px; margin-bottom: 12px; }
  .build-adv-title { font-size: var(--font-base); }
  .build-adv-desc { font-size: 12px; }
}

/* ---------- 工厂详情 ---------- */
.factory-detail-section {
  padding: var(--space-xl) 0;
}

.factory-detail-hero {
  position: relative;
  height: 480px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  overflow: hidden;
  margin-bottom: var(--space-xl);
}

.factory-detail-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.7;
}

.factory-detail-hero-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-xl);
  color: var(--color-white);
  background: linear-gradient(transparent, rgba(10, 25, 41, 0.95));
}

.factory-detail-hero-content h1 {
  font-size: var(--font-5xl);
  font-weight: 700;
  margin-bottom: 8px;
}

.factory-detail-hero-content .location {
  font-size: var(--font-lg);
  color: var(--color-accent);
  letter-spacing: 2px;
}

.factory-detail-info {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-xl);
}

.factory-detail-text {
  font-size: var(--font-lg);
  line-height: 1.9;
  color: var(--color-text-light);
  white-space: pre-line;
}

/* 工厂详情 - Hero 增强 */
.factory-detail-breadcrumb {
  font-size: var(--font-sm);
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
}
.factory-detail-breadcrumb a { color: rgba(255, 255, 255, 0.85); }
.factory-detail-breadcrumb a:hover { color: var(--color-accent); }
.factory-detail-breadcrumb span { margin: 0 8px; color: rgba(255, 255, 255, 0.4); }

.factory-detail-status {
  display: inline-block;
  margin-top: 18px;
  padding: 8px 18px;
  background: rgba(255, 255, 255, 0.95);
  color: var(--color-primary);
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: var(--font-sm);
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  border: 1px solid var(--color-accent);
}

/* 工厂详情 - 视频 CTA */
.factory-video-cta {
  margin-top: 32px;
}

/* 工厂详情 - 规格区 */
.factory-detail-specs {
  position: relative;
  padding: 36px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: var(--color-white);
}

.factory-detail-specs::before {
  content: "";
  position: absolute;
  inset: 16px;
  border: 1px solid rgba(201, 169, 97, 0.4);
  pointer-events: none;
}

.specs-header {
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  position: relative;
}

.specs-header .eyebrow {
  display: inline-block;
  font-size: var(--font-sm);
  font-weight: 500;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.specs-header h3 {
  font-size: var(--font-2xl);
  font-weight: 600;
  letter-spacing: -0.3px;
}

.spec-item {
  padding: 16px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
}

.spec-item:last-child {
  border-bottom: none;
}

.spec-item-daily {
  margin-top: 8px;
  padding: 18px 20px;
  background: rgba(201, 169, 97, 0.12);
  border: 1px solid rgba(201, 169, 97, 0.4);
  border-bottom: 1px solid rgba(201, 169, 97, 0.4);
}

.spec-no {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: -0.5px;
  line-height: 1.1;
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}

.spec-no small {
  font-size: 0.7em;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  margin-left: 4px;
  letter-spacing: 0;
}

.spec-no-text {
  font-size: 18px;
  font-weight: 600;
}

.spec-label {
  font-size: var(--font-sm);
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.spec-item-daily .spec-label {
  color: var(--color-accent);
  font-weight: 500;
}

/* 工厂详情 - 主要产品板块 */
.factory-product-block {
  margin-top: var(--space-xl);
  padding: 48px;
  background: var(--color-bg);
  border-left: 4px solid var(--color-accent);
}

.factory-product-block .eyebrow {
  display: inline-block;
  font-size: var(--font-sm);
  font-weight: 500;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.factory-product-block h3 {
  font-size: var(--font-2xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
  letter-spacing: -0.3px;
}

.factory-product-block p {
  font-size: var(--font-lg);
  line-height: 1.8;
  color: var(--color-text-light);
}

/* 工厂详情 - 图片区 */
.factory-gallery {
  margin-top: var(--space-xl);
}

.factory-gallery h2 {
  font-size: var(--font-3xl);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 32px;
  letter-spacing: -0.3px;
}

/* ---------- 页脚 ---------- */
.footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: var(--space-lg) 0 var(--space-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
  color: var(--color-white);
  font-size: var(--font-2xl);
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-desc {
  line-height: 1.8;
  margin-bottom: 24px;
  max-width: 400px;
}

.footer-socials {
  display: flex;
  gap: 12px;
}

.footer-socials a {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.7);
  transition: all var(--transition-fast);
}

.footer-socials a:hover {
  background: var(--color-accent);
  color: var(--color-primary);
  border-color: var(--color-accent);
}

/* 页脚社交图标品牌色 hover */
.footer-socials .social-icon-facebook:hover { background: #1877F2; color: #fff; border-color: #1877F2; }
.footer-socials .social-icon-tiktok:hover   { background: #000000; color: #fff; border-color: #000000; }
.footer-socials .social-icon-instagram:hover{ background: linear-gradient(45deg,#F58529,#DD2A7B,#8134AF,#515BD4); color: #fff; border-color: transparent; }
.footer-socials .social-icon-xiaohongshu:hover{ background: #FF2442; color: #fff; border-color: #FF2442; }
.footer-socials .social-icon-whatsapp:hover{ background: #25D366; color: #fff; border-color: #25D366; }
.footer-socials a svg { display: block; }

.footer-title {
  color: var(--color-white);
  font-size: var(--font-lg);
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: var(--font-sm);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  text-align: center;
  font-size: var(--font-sm);
  padding-top: var(--space-md);
}

/* ---------- 滚动条 ---------- */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--color-accent);
  border-radius: 0;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-accent-dark);
}

/* ===========================================
   关于我们 专属增强
   =========================================== */

/* ---------- 关于我们顶部数据带 ---------- */
.about-hero-stats {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 64px 0;
  border-bottom: 1px solid rgba(201, 169, 97, 0.25);
  position: relative;
  overflow: hidden;
}

.about-hero-stats::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 15% 50%, rgba(201, 169, 97, 0.10) 0%, transparent 50%),
    radial-gradient(circle at 85% 50%, rgba(201, 169, 97, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

.about-hero-stats-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}

.about-hero-stat {
  text-align: center;
  padding: 16px 32px;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
}

.about-hero-stat:last-child {
  border-right: none;
}

.about-hero-stat-no {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 56px;
  font-weight: 800;
  color: var(--color-accent);
  letter-spacing: -2px;
  line-height: 1;
  margin-bottom: 14px;
  font-variant-numeric: tabular-nums;
}

.about-hero-stat-label {
  font-size: var(--font-base);
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: 2px;
  margin-bottom: 6px;
}

.about-hero-stat-sub {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: var(--font-xs);
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 3px;
  text-transform: uppercase;
}

/* ---------- 关于我们 公司介绍 ---------- */
.about-company-section {
  padding: var(--space-lg) 0 var(--space-md);
  position: relative;
}

.about-company-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

/* ===== 文字流环绕图片（杂志风半包）===== */
.float-image {
  width: 52% !important;
  max-width: none !important;
}
.float-image.float-left {
  float: left;
  margin: 6px 36px 24px 0;
}
.float-image.float-right {
  float: right;
  margin: 6px 0 24px 36px;
}
.float-clear {
  clear: both;
}

/* 段落加 .clear-both 类后，从图片下方延伸时撑满整个 container 宽度（不继承 float 容器宽度） */
.clear-both {
  clear: both;
}

.about-company-image {
  position: relative;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  overflow: visible;
}

/* 图片上的序号水印 */
.about-company-image::before {
  content: "01";
  position: absolute;
  top: -28px;
  left: -28px;
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 96px;
  font-weight: 800;
  color: rgba(201, 169, 97, 0.15);
  letter-spacing: -4px;
  line-height: 1;
  z-index: 3;
  font-variant-numeric: tabular-nums;
  pointer-events: none;
}

/* 图片上的对角线金色装饰角 */
.about-company-image > .corner-tl,
.about-company-image > .corner-br {
  position: absolute;
  width: 56px;
  height: 56px;
  z-index: 3;
  pointer-events: none;
}
.about-company-image > .corner-tl {
  top: -10px;
  left: -10px;
  border-top: 2px solid var(--color-accent);
  border-left: 2px solid var(--color-accent);
}
.about-company-image > .corner-br {
  bottom: -10px;
  right: -10px;
  border-bottom: 2px solid var(--color-accent);
  border-right: 2px solid var(--color-accent);
}

.about-company-image > .image-inner {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.about-company-image > .image-inner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.about-company-image:hover > .image-inner img {
  transform: scale(1.05);
}

/* 图片内部装饰：建筑线条图 */
.about-company-image .pattern-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(45deg, transparent 49%, rgba(201, 169, 97, 0.08) 49%, rgba(201, 169, 97, 0.08) 51%, transparent 51%),
    linear-gradient(-45deg, transparent 49%, rgba(201, 169, 97, 0.08) 49%, rgba(201, 169, 97, 0.08) 51%, transparent 51%);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 1;
}

/* 图片暗化层，让金色装饰更突出 */
.about-company-image .image-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 25, 41, 0.35) 0%, rgba(10, 25, 41, 0.15) 40%, rgba(10, 25, 41, 0.5) 100%);
  pointer-events: none;
  z-index: 0;
}

.about-company-text .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: var(--font-sm);
  font-weight: 500;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.about-company-text .eyebrow::before {
  content: "";
  width: 32px;
  height: 1px;
  background: var(--color-accent);
}

.about-company-text h2 {
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
  line-height: 1.25;
  letter-spacing: -0.5px;
}

.about-company-text h2 .accent {
  color: var(--color-accent);
}

/* 第一段首字下沉（drop cap） */
.about-company-text > p:first-of-type::first-letter {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 64px;
  font-weight: 800;
  color: var(--color-accent);
  float: left;
  line-height: 0.9;
  margin: 6px 12px 0 0;
  padding: 4px 0;
}

.about-company-text p {
  color: var(--color-text-light);
  line-height: 1.9;
  margin-bottom: var(--space-sm);
  font-size: var(--font-base);
}

.about-company-text p:last-child {
  margin-bottom: 0;
}

/* 关键数据 pull quote */
.about-company-quote {
  margin-top: var(--space-lg);
  padding: 24px 28px;
  border-left: 3px solid var(--color-accent);
  background: linear-gradient(90deg, rgba(201, 169, 97, 0.06), transparent);
}

.about-company-quote-no {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 48px;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  letter-spacing: -2px;
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}

.about-company-quote-text {
  font-size: var(--font-sm);
  color: var(--color-text-light);
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* ---------- 关于我们 设计/施工团队 复用 about-section + 增强 ---------- */
.team-section {
  padding: var(--space-lg) 0 0;
}

.team-section-dark {
  background: var(--color-bg);
  padding: var(--space-md) 0 var(--space-lg);
}

.team-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.team-text .eyebrow,
.team-section > .container > .eyebrow,
.about-company-section > .container > .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: var(--font-sm);
  font-weight: 500;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.team-text .eyebrow::before,
.team-section > .container > .eyebrow::before,
.about-company-section > .container > .eyebrow::before {
  content: "";
  width: 32px;
  height: 1px;
  background: var(--color-accent);
}

.team-text h2 {
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.team-text .team-tagline,
.team-section > .container > .team-tagline,
.team-section-dark > .container > .team-tagline {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: var(--font-sm, 14px);
  color: var(--color-accent-dark);
  letter-spacing: 3px;
  text-transform: uppercase;
}

/* about 页面 about-section 内 tagline：取消大写 / 紧凑字距（中文段落风格） */
.team-section > .container > .team-tagline,
.team-section-dark > .container > .team-tagline {
  letter-spacing: 0.3px;
  text-transform: none;
  font-weight: 500;
  line-height: 1.9;
  margin-bottom: var(--space-sm, 16px);
}
  margin-bottom: var(--space-md);
}

.team-text p {
  color: var(--color-text-light);
  line-height: 1.9;
  margin-bottom: var(--space-sm);
  font-size: var(--font-base);
}

/* 设计团队 5 项能力 */
.team-capabilities {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: var(--space-md);
}

.team-cap {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--color-white);
  border-left: 3px solid var(--color-accent);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.team-cap:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-md);
}

.team-cap-no {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: var(--font-sm);
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 1px;
  flex-shrink: 0;
}

.team-cap-text {
  font-size: var(--font-sm);
  font-weight: 500;
  color: var(--color-primary);
}

/* 施工团队 4 项数据 */
.team-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0;
  margin-top: var(--space-md);
  border: 1px solid var(--color-border);
  background: var(--color-white);
}

.team-stat {
  padding: 24px 20px;
  text-align: center;
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-fast);
}

.team-stat:hover {
  background: var(--color-bg);
}

.team-stat:nth-child(2n) { border-right: none; }
.team-stat:nth-last-child(-n+2) { border-bottom: none; }

.team-stat-no {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 36px;
  font-weight: 800;
  color: var(--color-accent-dark);
  letter-spacing: -1px;
  line-height: 1;
  margin-bottom: 8px;
  font-variant-numeric: tabular-nums;
}

.team-stat-label {
  font-size: var(--font-sm);
  color: var(--color-text-light);
  letter-spacing: 1px;
}

/* 团队图片框 */
.team-image {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  overflow: hidden;
}

.team-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.team-image:hover img {
  transform: scale(1.05);
}

/* 团队图片内嵌装饰：建筑线框 */
.team-image::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(45deg, transparent 49%, rgba(201, 169, 97, 0.1) 49%, rgba(201, 169, 97, 0.1) 51%, transparent 51%);
  background-size: 40px 40px;
  z-index: 1;
  pointer-events: none;
}

/* 团队图片右上金线装饰 */
.team-image::after {
  content: "";
  position: absolute;
  top: 20px;
  right: 20px;
  bottom: 60%;
  left: 60%;
  border: 2px solid var(--color-accent);
  z-index: 2;
  pointer-events: none;
}

/* 团队大序号 */
.team-image > .team-no {
  position: absolute;
  top: 20px;
  left: 20px;
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 80px;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.18);
  letter-spacing: -3px;
  line-height: 1;
  z-index: 2;
  pointer-events: none;
  font-variant-numeric: tabular-nums;
}

/* ---------- 关于我们 企业文化 ---------- */
.culture-section {
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-lg) 0;
  position: relative;
  overflow: hidden;
}

.culture-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

/* 文化板块大背景字 */
.culture-section::after {
  content: "CULTURE";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 240px;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.025);
  letter-spacing: -10px;
  pointer-events: none;
  user-select: none;
  z-index: 0;
  white-space: nowrap;
}

.culture-section .section-title-light {
  color: var(--color-white);
}

.culture-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: var(--space-lg);
  position: relative;
  z-index: 1;
}

.culture-card {
  padding: 48px 36px;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  position: relative;
  transition: background var(--transition);
}

.culture-card:last-child {
  border-right: none;
}

.culture-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.culture-card:hover::before {
  width: 100%;
}

.culture-card:hover {
  background: rgba(201, 169, 97, 0.04);
}

.culture-no {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: var(--font-sm);
  font-weight: 500;
  color: var(--color-accent);
  letter-spacing: 3px;
  margin-bottom: 24px;
}

.culture-label {
  font-size: var(--font-xl);
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 16px;
  letter-spacing: -0.3px;
}

.culture-text {
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.9;
  font-size: var(--font-base);
  position: relative;
}

/* Mission 加大引号 */
.culture-text.with-quote::before {
  content: "\201C";
  position: absolute;
  top: -28px;
  left: -8px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 80px;
  color: var(--color-accent);
  opacity: 0.4;
  line-height: 1;
  font-weight: 700;
}

.culture-values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 24px;
}

.culture-value {
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.culture-value-name {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--font-base);
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 6px;
  letter-spacing: 1px;
}

.culture-value-name::before {
  content: "◆";
  font-size: 8px;
  color: var(--color-accent);
}

.culture-value-desc {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--font-sm);
  line-height: 1.7;
}

/* ---------- 关于我们 Why VBV ---------- */
.why-section {
  padding: var(--space-lg) 0;
  background: var(--color-bg);
  position: relative;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: var(--space-lg);
}

.why-card {
  position: relative;
  padding: 36px 28px;
  background: var(--color-white);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.why-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(10, 25, 41, 0.15);
  border-color: var(--color-accent);
}

.why-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 0;
  background: linear-gradient(180deg, rgba(201, 169, 97, 0.04), transparent);
  transition: height 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.why-card:hover::before {
  height: 100%;
}

.why-card::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.why-card:hover::after {
  transform: scaleX(1);
}

.why-no {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: var(--font-4xl);
  font-weight: 800;
  color: var(--color-bg-alt);
  letter-spacing: -2px;
  line-height: 1;
  margin-bottom: 16px;
  font-variant-numeric: tabular-nums;
  transition: color var(--transition);
  position: relative;
  z-index: 1;
}

.why-card:hover .why-no {
  color: var(--color-accent);
}

.why-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  margin-bottom: 20px;
  font-size: 22px;
  position: relative;
  z-index: 1;
  transition: all var(--transition);
}

.why-card:hover .why-icon {
  background: var(--color-accent);
  color: var(--color-primary);
}

.why-title {
  font-size: var(--font-xl);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 12px;
  letter-spacing: -0.3px;
  position: relative;
  z-index: 1;
}

.why-desc {
  color: var(--color-text-light);
  line-height: 1.8;
  font-size: var(--font-sm);
  position: relative;
  z-index: 1;
}

/* 关于我们 行动号召 */
.about-cta {
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-lg) 0;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.about-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.about-cta::after {
  content: "VBV";
  position: absolute;
  bottom: -60px;
  left: 50%;
  transform: translateX(-50%);
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 240px;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.04);
  letter-spacing: -10px;
  line-height: 1;
  pointer-events: none;
  user-select: none;
  font-variant-numeric: tabular-nums;
}

.about-cta-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: var(--color-accent);
  font-size: var(--font-sm);
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.about-cta-eyebrow::before,
.about-cta-eyebrow::after {
  content: "";
  width: 32px;
  height: 1px;
  background: var(--color-accent);
}

.about-cta-title {
  font-size: clamp(36px, 4.5vw, 60px);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -1px;
  position: relative;
  z-index: 1;
}

.about-cta-desc {
  font-size: var(--font-lg);
  color: rgba(255, 255, 255, 0.75);
  max-width: 640px;
  margin: 0 auto 40px;
  line-height: 1.8;
  position: relative;
  z-index: 1;
}

.about-cta-actions {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
  position: relative;
  z-index: 1;
}

.about-cta-actions .btn-primary {
  padding: 16px 44px;
  font-size: var(--font-lg);
  letter-spacing: 2px;
  font-weight: 600;
}

.about-cta-actions .btn-outline-light {
  padding: 16px 44px;
  font-size: var(--font-lg);
  letter-spacing: 2px;
  border-color: rgba(255, 255, 255, 0.4);
  color: var(--color-white);
}

.about-cta-actions .btn-outline-light:hover {
  border-color: var(--color-accent);
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-accent);
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .systems-grid,
  .factories-grid,
  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .equipment-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --font-4xl: 32px;
    --font-5xl: 42px;
    --font-6xl: 48px;
    --space-2xl: 64px;
  }

  .nav-main,
  .lang-switch {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-main.mobile-open {
    display: flex;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-primary);
    padding: 16px 0;
    border-top: 1px solid rgba(201, 169, 97, 0.2);
  }

  /* 顶部 header + logo 在移动端缩小：80px + 60px 占比偏大 */
  .header-inner { height: 60px; }
  .logo-image-top { height: 40px; }

  /* === Hero 移动端适配（修复图片过大、布局挤压） === */
  .hero {
    height: auto;            /* 不再 100vh，让内容自然撑开 */
    min-height: 0;           /* 覆盖桌面端 720px 最低高度 */
    padding-top: 88px;       /* header 高度 */
    padding-bottom: 32px;
  }

  /* 暗化叠加：移动端文字在底部，改"上亮下暗"保证文字清晰 */
  .hero-overlay {
    background:
      linear-gradient(180deg, rgba(10, 25, 41, 0.25) 0%, transparent 28%, rgba(10, 25, 41, 0.55) 68%, rgba(10, 25, 41, 0.88) 100%);
  }

  /* 右侧大水印字号缩小 */
  .hero-watermark {
    font-size: 110px;
    letter-spacing: -4px;
    opacity: 0.35;
  }

  /* 全框去掉只保留四角金线 */
  .hero-frame { border: none; }
  .hero-frame::before,
  .hero-frame::after { width: 14px; height: 14px; }

  /* 编号 01/N 移到 header 下方 */
  .hero-counter { top: 92px; right: 20px; }

  /* 左下角标签挪到顶部、缩小字号 */
  .hero-caption {
    top: 130px;
    bottom: auto;
    left: 20px;
    font-size: 10px;
    letter-spacing: 2px;
  }

  /* 轮播指示点挪到标签下方、靠右 */
  .hero-indicators {
    top: 170px;
    right: 20px;
    bottom: auto;
  }

  /* 滚动提示移动端隐藏（空间紧张） */
  .hero-scroll { display: none; }

  /* 主标题：去掉 nowrap、缩小、留出顶部装饰区 */
  .hero-title {
    white-space: normal;
    font-size: 26px;
    line-height: 1.25;
    letter-spacing: 0;
    margin-top: 180px;
    margin-bottom: 16px;
  }
  .hero-title .accent {
    margin-top: 14px;
    font-size: 0.32em;
    letter-spacing: 8px;
  }

  /* 副标题 / tagline 缩小 */
  .hero-subtitle {
    font-size: 15px;
    gap: 8px;
    margin-bottom: 8px;
  }
  .hero-tagline {
    font-size: 13px;
    margin-bottom: 20px;
  }

  /* 按钮缩小、紧凑 */
  .hero-actions { gap: 10px; }
  .hero-actions .btn {
    padding: 12px 24px;
    font-size: 13px;
    letter-spacing: 1px;
  }

  /* 主标题左侧的金色装饰竖线在窄屏隐藏 */
  .hero-content::before { display: none; }

  .nav-main.mobile-open a {
    padding: 16px 32px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

  .hero-stats-inner {
    grid-template-columns: 1fr;
  }

  .stat-item {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .stat-item:last-child {
    border-bottom: none;
  }

  .systems-grid,
  .projects-grid,
  .equipment-grid,
  .applicable-list,
  .advantages-grid {
    grid-template-columns: 1fr;
  }

  /* 建厂卡片在移动端保持 2 列网格，不退化为列表（参照其它章节页） */
  .factories-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .factory-card-location { font-size: 10px; padding: 3px 8px; top: 16px; }
  .factory-card-status { font-size: 10px; padding: 3px 8px; top: 16px; }
  .factory-card-no { font-size: 13px; top: 16px; }

  .about-grid,
  .system-intro,
  .contact-grid,
  .contact-grid-3,
  .factory-detail-info {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .gallery-grid {
    grid-template-columns: 1fr 1fr;
  }

  .contact-socials {
    grid-template-columns: repeat(3, 1fr);
  }

  .about-hero-stats-inner,
  .culture-grid,
  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-hero-stat:nth-child(2n),
  .culture-card:nth-child(2n) {
    border-right: none;
  }

  .about-company-grid,
  .team-grid {
    grid-template-columns: 1fr;
  }

  .team-capabilities {
    grid-template-columns: 1fr;
  }
  /* team-stats 在移动端保持 2x2 网格，不退化为列表 */
  .team-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .why-grid {
    grid-template-columns: 1fr;
  }
  /* about-hero-stats 在移动端保持 2x2 网格，不退化为列表 */
  .about-hero-stats-inner {
    grid-template-columns: 1fr 1fr;
  }
  /* 2 列时只需清理奇数列的右边框，加行底分割线 */
  .about-hero-stat {
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
  .about-hero-stat:nth-child(2n) {
    border-right: none;
  }
  .about-hero-stat:nth-last-child(-n+2) {
    border-bottom: none;
  }

  /* 顶部 header 在小屏缩小：logo 60px + container 80px 占比偏大 */
  .header-inner {
    height: 60px;
  }
  .logo-image-top {
    height: 40px;
  }

  .culture-grid,
  .culture-values {
    grid-template-columns: 1fr;
  }

  .culture-card {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .culture-card:last-child {
    border-bottom: none;
  }
}

/* ---------- 滚动揭示动画 ---------- */
/* 默认全部可见，仅在 .js-reveal 父类（即 JS 已加载）下才做隐藏动画
   避免 JS 加载延迟或观察器未触发时大块内容不可见 */
.js-reveal .reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.9s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.9s cubic-bezier(0.4, 0, 0.2, 1);
}

.js-reveal .reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.js-reveal .reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.9s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.9s cubic-bezier(0.4, 0, 0.2, 1);
}
.js-reveal .reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.js-reveal .reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.9s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.9s cubic-bezier(0.4, 0, 0.2, 1);
}
.js-reveal .reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

.js-reveal .reveal-fade {
  opacity: 0;
  transition: opacity 1.2s ease;
}
.js-reveal .reveal-fade.visible {
  opacity: 1;
}

/* 时间轴线绘制动画 */
@keyframes drawLine {
  from { transform: scaleY(0); }
  to   { transform: scaleY(1); }
}

.timeline::before {
  transform-origin: top;
  animation: drawLine 1.5s 0.3s cubic-bezier(0.4, 0, 0.2, 1) both;
}

/* 标题渐显动画 */
@keyframes titleIn {
  from { opacity: 0; transform: translateY(20px); letter-spacing: 8px; }
  to   { opacity: 1; transform: translateY(0); letter-spacing: -1px; }
}

.cta-grand-title {
  animation: titleIn 1s ease-out;
}

/* ============================================
   四大建筑体系 - 五星对比表（清晰版）
   ============================================ */
.systems-compare {
  background: #ffffff;
  padding: 96px 0 80px;
  position: relative;
}

/* 顶部金色细分隔线 */
.systems-compare::after {
  content: '';
  position: absolute;
  top: 48px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 2px;
  background: var(--color-accent);
}

/* 表格卡片容器 - 与下方卡片宽度一致 */
.compare-table-wrap {
  position: relative;
  margin: 56px auto 0;
  max-width: 1320px;
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-top: 3px solid var(--color-accent);
  padding: 0;
}

/* 表格本体 */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  min-width: 700px;
}

.compare-table th,
.compare-table td {
  padding: 18px 14px;
  text-align: center;
  border-bottom: 1px solid #f0f0f0;
  vertical-align: middle;
}

/* 第一列 - 指标名 */
.compare-table th:first-child,
.compare-table td:first-child {
  text-align: left;
  font-weight: 500;
  color: var(--color-primary);
  background: #fafbfc;
  width: 130px;
  font-size: 13px;
  padding-left: 16px;
}

/* 表头 */
.compare-table th {
  font-weight: 600;
  color: var(--color-primary);
  font-size: 13px;
  letter-spacing: 0.5px;
  white-space: nowrap;
  background: #fafbfc;
  border-bottom: 2px solid var(--color-accent);
  padding: 24px 14px 20px;
}

/* 表头顶部色条 */
.compare-table th.col-modular         { border-top: 3px solid var(--color-primary); }
.compare-table th.col-wall-panel      { border-top: 3px solid var(--color-accent); }
.compare-table th.col-frame           { border-top: 3px solid #8899aa; }
.compare-table th.col-cast-in-place   { border-top: 3px solid #c4b59a; }

.compare-table th .system-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.compare-table th .system-no {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 10px;
  font-weight: 600;
  color: #666666;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.compare-table th .system-name {
  font-weight: 700;
  color: var(--color-primary);
  font-size: 14px;
}

/* 斑马纹行 */
.compare-table tbody tr:nth-child(even) td {
  background: #fafbfc;
}

/* 行交互 */
.compare-table tbody tr {
  transition: background 0.2s ease;
}

.compare-table tbody tr:hover td {
  background: #fff9e6;
}

/* 最后一行 - 推荐指数强调 */
.compare-table tbody tr:last-child td {
  background: linear-gradient(90deg, #f5ead0 0%, #faf3e0 100%);
  border-top: 1px solid rgba(201, 169, 97, 0.3);
  border-bottom: none;
}
.compare-table tbody tr:last-child td:first-child {
  color: var(--color-accent-dark);
  font-weight: 700;
  font-size: 14px;
}
.compare-table tbody tr:last-child .compare-stars {
  font-size: 18px;
}

/* 星级 - 清晰可辨 */
.compare-stars {
  display: inline-flex;
  gap: 4px;
  font-size: 16px;
  letter-spacing: 2px;
  line-height: 1;
  user-select: none;
  align-items: center;
}

/* 星级五角星 */
.compare-stars .star {
  width: 20px;
  height: 20px;
}

.compare-stars .star svg {
  width: 100%;
  height: 100%;
  transition: transform 0.2s ease;
}

.compare-table tbody tr:hover .compare-stars .star svg {
  transform: scale(1.15);
}

/* 金色实心星 + 深灰空心星（高对比度） */
.compare-stars .star-full svg { 
  fill: #d4a853; 
}
.compare-stars .star-empty svg { 
  fill: #d0d0d0; 
}

/* 推荐指数行星星更大 */
.compare-table tbody tr:last-child .compare-stars { letter-spacing: 4px; }
.compare-table tbody tr:last-child .compare-stars .star {
  width: 22px;
  height: 22px;
}

/* 响应式 */
@media (max-width: 900px) {
  .systems-compare { padding: 64px 0 48px; }
  .compare-table-wrap {
    margin-left: -16px;
    margin-right: -16px;
    border-left: none;
    border-right: none;
  }
  .compare-table th, .compare-table td { padding: 12px 8px; font-size: 12px; }
  .compare-stars .star { width: 16px; height: 16px; }
}

/* 推荐指数行 */
.compare-table tbody tr:last-child .compare-stars { letter-spacing: 3px; }

/* 响应式 */
@media (max-width: 900px) {
  .systems-compare { padding: 64px 0 32px; }
  .compare-table-wrap {
    margin-left: -16px;
    margin-right: -16px;
    border-left: none;
    border-right: none;
  }
  .compare-table th, .compare-table td { padding: 14px 10px; font-size: 12px; }
}
/* ============================================================
 * VBV 图片库（2026-08 新增）：置顶 / 标签筛选 / 按日期分组
 * ============================================================ */

.vbv-top-section {
  margin-bottom: 48px;
  padding: 24px;
  background: linear-gradient(135deg, #fff8e7 0%, #fff4d6 100%);
  border-radius: 12px;
  border: 1px solid #f0d68a;
}

.vbv-section-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.vbv-section-badge {
  display: inline-block;
  padding: 4px 14px;
  background: linear-gradient(135deg, #f0a020 0%, #d4820a 100%);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  border-radius: 16px;
  letter-spacing: 1px;
  box-shadow: 0 2px 6px rgba(212, 130, 10, 0.3);
}

.vbv-section-sub {
  color: var(--color-text-light, #666);
  font-size: 14px;
}

.vbv-top-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.vbv-top-card {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #000;
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.vbv-top-card:hover {
  transform: translateY(-4px);
}

.vbv-top-card img,
.vbv-top-card video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.vbv-top-flag {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 12px;
  background: linear-gradient(135deg, #f0a020 0%, #d4820a 100%);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  border-radius: 4px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
  z-index: 2;
}

.vbv-top-tags {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 8px 12px;
  background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.7) 100%);
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  z-index: 2;
}

.vbv-tag-filter {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 32px;
  padding: 16px 20px;
  background: var(--color-bg, #f5f5f5);
  border-radius: 8px;
}

.vbv-filter-label {
  font-weight: 600;
  color: var(--color-text, #333);
  margin-right: 4px;
}

.vbv-tag-chip {
  display: inline-block;
  padding: 6px 14px;
  background: #fff;
  border: 1px solid var(--color-border, #ddd);
  border-radius: 20px;
  font-size: 13px;
  color: var(--color-text, #333);
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}

.vbv-tag-chip:hover {
  border-color: var(--color-primary, #1a5490);
  color: var(--color-primary, #1a5490);
}

.vbv-tag-chip.active {
  background: var(--color-primary, #1a5490);
  border-color: var(--color-primary, #1a5490);
  color: #fff;
}

.vbv-empty {
  text-align: center;
  padding: 64px;
  background: var(--color-bg, #f5f5f5);
  color: var(--color-text-light, #999);
  border-radius: 8px;
}

.vbv-date-groups {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.vbv-date-group {
  /* 单个日期分组 */
}

.vbv-date-heading {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary, #1a5490);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-primary, #1a5490);
}

.vbv-date-count {
  font-size: 14px;
  color: var(--color-text-light, #999);
  font-weight: 400;
}

/* 加载更多按钮（gallery 分批） */
.vbv-load-more-wrap {
  display: flex;
  justify-content: center;
  margin-top: 24px;
}
.vbv-load-more-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 28px;
  background: var(--color-white, #ffffff);
  border: 1px solid var(--color-accent, #c9a961);
  border-radius: 24px;
  color: var(--color-accent, #c9a961);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}
.vbv-load-more-btn:hover {
  background: var(--color-accent, #c9a961);
  color: var(--color-white, #ffffff);
}
.vbv-load-more-count {
  font-size: 13px;
  opacity: 0.7;
}

.vbv-item-tags {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 6px 10px;
  background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.6) 100%);
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  opacity: 0;
  transition: opacity 0.2s ease;
  z-index: 2;
}

.gallery-item:hover .vbv-item-tags {
  opacity: 1;
}

.vbv-chip {
  display: inline-block;
  padding: 2px 8px;
  background: rgba(255, 255, 255, 0.9);
  color: #333;
  font-size: 11px;
  border-radius: 3px;
  font-weight: 500;
}

@media (max-width: 768px) {
  .vbv-top-grid {
    grid-template-columns: 1fr;
  }
  .vbv-tag-filter {
    padding: 12px;
  }
  .vbv-date-heading {
    font-size: 16px;
  }
}

/* ============================================================
   移动端深度适配 + Lightbox (2026-09-04)
   - 以下规则全部在 @media 内或带 .vbv-lightbox / .lang-switch-mobile 命名空间
   - PC 端完全不受影响
   ============================================================ */

/* PC 端：移动端多语言入口默认隐藏 */
.lang-switch-mobile { display: none; }

/* ---------- 1024px：过渡优化 ---------- */
@media (max-width: 1024px) {
  .hero-watermark { font-size: 200px; }
  .page-banner-corner { width: 60px; height: 60px; }
  .page-banner-corner.tl, .page-banner-corner.tr { top: 80px; }
  .page-banner-corner.bl, .page-banner-corner.br { bottom: 60px; }
  .page-banner-corner.tl, .page-banner-corner.bl { left: 20px; }
  .page-banner-corner.tr, .page-banner-corner.br { right: 20px; }

  /* contact 页面社交图标在 1024px 笔记本下中间列偏紧：
     实际只渲染 4 个图标，把 5 列改 4 列 + 缩 padding/icon/字号 */
  .contact-socials {
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
  }
  .social-link { padding: 10px 6px; }
  .social-link-icon { width: 32px; height: 32px; }
  .social-link-name { font-size: 12px; }
}

/* ---------- 768px：核心移动端 ---------- */
@media (max-width: 768px) {
  /* ============================================================
     首页 Hero（背景图作为整片背景，文字覆盖其上 —— 和 page-banner 一样）
     ============================================================ */
  .hero {
    display: block;
    position: relative;
    height: auto;                         /* 由内容自然撑开 */
    min-height: 0;
    padding: 0;
    background: var(--color-primary);
  }
  /* 背景图固定 480px 高，作为 hero 顶部图区域 */
  .hero-bg {
    display: block;
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 480px;                        /* 图区域固定高度 */
    z-index: 0;
  }
  .hero-slide {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
  }
  /* 暗化叠加：底部更深让文字清晰 */
  .hero-overlay {
    display: block;
    position: absolute;
    inset: 0;
    z-index: 1;
    background:
      linear-gradient(180deg,
        rgba(10, 25, 41, 0.50) 0%,
        rgba(10, 25, 41, 0.30) 40%,
        rgba(10, 25, 41, 0.70) 80%,
        rgba(10, 25, 41, 0.90) 100%);
  }
  .hero-bg::after { display: none; }

  .hero-frame { display: none; }
  .hero-watermark { display: none; }
  .hero-scroll { display: none; }
  .hero-counter,
  .hero-caption { display: none; }
  /* 轮播指示点：图区域底部居中 */
  .hero-indicators {
    display: flex;
    position: absolute;
    top: 456px;                           /* 480 - 24 = 图区域底部向上 24px */
    left: 0; right: 0;
    justify-content: center;
    z-index: 3;
    padding: 0;
    margin: 0;
  }
  .hero-content::before { display: none; }
  .hero-content::after { display: none; }

  /* 文字内容：绝对居中叠在图上 */
  .hero-content {
    position: absolute;
    top: 0;
    left: 24px;
    right: 24px;
    height: 480px;                        /* 跟图区同高 */
    z-index: 2;
    max-width: 100%;
    padding: 0;
    margin: 0;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }

  /* hero-stats：跳过图区域，流式排在 hero-bg 下方 */
  .hero-stats {
    position: relative;
    z-index: 5;
    margin-top: 480px;                    /* 跳过图区 */
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgba(10, 25, 41, 0.95);
  }
  .hero-eyebrow {
    font-size: 11px;
    letter-spacing: 2px;
    margin-bottom: 16px;
    justify-content: center;
  }
  .hero-eyebrow::before { width: 20px; }
  .hero-title {
    font-size: 26px;
    line-height: 1.3;
    letter-spacing: 0;
    margin-top: 0;
    margin-bottom: 14px;
    white-space: normal;
    word-break: break-word;
  }
  .hero-title .accent {
    font-size: 10px;
    letter-spacing: 2px;
    margin-top: 10px;
    word-break: break-all;
  }
  .hero-subtitle {
    font-size: 13px;
    gap: 6px;
    margin-bottom: 6px;
    letter-spacing: 0;
    line-height: 1.7;
    justify-content: center;
  }
  .hero-tagline {
    font-size: 12px;
    margin-bottom: 18px;
    max-width: 100%;
  }
  /* 按钮在图上：横排居中 */
  .hero-actions {
    gap: 10px;
    flex-direction: row;
    justify-content: center;
    flex-wrap: wrap;
  }
  .hero-actions .btn {
    padding: 11px 20px;
    font-size: 12px;
    letter-spacing: 1px;
    text-align: center;
  }

  /* Hero stats 改流式（不再 absolute bottom:0 跟内容重叠） */
  .hero-stats {
    position: relative;
    z-index: 5;
    margin-top: 480px;                    /* 跳过图区域（图固定 480px 高） */
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: rgba(10, 25, 41, 0.95);
  }
  .hero-stats-inner {
    grid-template-columns: repeat(3, 1fr);  /* 3 列横排 */
    padding: 0;
  }
  .stat-item {
    padding: 18px 10px;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
    border-bottom: none;
  }
  .stat-item:last-child { border-right: none; }
  .stat-item:last-child { border-bottom: none; }
  .stat-item:hover::before { width: 0; }  /* 移动端无 hover */
  .stat-label {
    font-size: 10px;
    letter-spacing: 2px;
    margin-bottom: 8px;
  }
  .stat-value { font-size: 26px; }
  .stat-value .unit { font-size: 11px; }
  .stat-sub {
    font-size: 9px;
    letter-spacing: 1.5px;
    margin-top: 6px;
  }

  /* ============================================================
     通用 page-banner（内页 hero）
     ============================================================ */
  .page-banner {
    min-height: 240px;
    padding-top: 80px;
    padding-bottom: 32px;
  }
  .page-banner-line,
  .page-banner-corner { display: none; }  /* 装饰元素全部隐藏 */
  .page-banner-content { padding: 24px 16px; }
  .page-banner-content h1 {
    font-size: 22px !important;
    line-height: 1.3;
    letter-spacing: 0;
    margin-bottom: 12px;
    word-break: break-word;
  }
  .page-banner h1 .accent {
    font-size: 9px !important;
    letter-spacing: 3px;
    margin-top: 8px;
    word-break: break-all;
  }
  .page-banner-no {
    font-size: 10px;
    letter-spacing: 2px;
    margin-bottom: 14px;
  }
  .page-banner-no .num { font-size: 14px; }
  .page-banner p {
    font-size: 12px;
    line-height: 1.6;
    max-width: 100%;
    padding: 0 8px;
  }
  .breadcrumb {
    font-size: 11px;
    margin-top: 16px;
    flex-wrap: wrap;
    padding: 0 8px;
  }
  /* banner 背景图：避免 7px 溢出（虽然 .page-banner overflow:hidden 裁掉了，但保证干净） */
  .page-banner .banner-photo { width: 100%; }

  /* ============================================================
     About 页面 hero stats（1000+ / 30 / 12+ 等大数字）
     ============================================================ */
  .about-hero-stats { padding: 32px 0; }
  .about-hero-stats-inner {
    grid-template-columns: 1fr 1fr;
    gap: 0;
  }
  .about-hero-stat {
    padding: 20px 12px;
  }
  .about-hero-stat:nth-child(2n) { border-right: none; }
  .about-hero-stat-no { font-size: 28px; }
  .about-hero-stat-label { font-size: 11px; }
  .about-hero-stat-sub { font-size: 9px; letter-spacing: 1px; }

  /* ============================================================
     通用 Section / 容器
     ============================================================ */
  .section { padding: 40px 0; }
  .section-header { margin-bottom: 32px; }
  /* 移动端 eyebrow：装饰线改为文字下方一条短金线居中，覆盖 768px 及以下 */
  /* 移动端：隐藏 section 顶部金色分隔线，避免和 eyebrow 撞在一起 */
  .systems-compare::after { display: none !important; }
  .section-eyebrow {
    padding: 0 0 14px !important;
    margin-bottom: 16px;
  }

  /* 系统详情区：内联 grid 1fr 1fr 在移动端堆叠成 1 列，图片占满 */
  section.section-dark .container > .reveal[style*="grid-template-columns: 1fr 1fr"] {
    grid-template-columns: 1fr !important;
    gap: 24px !important;
    align-items: stretch !important;
  }
  section.section-dark .container > .reveal[style*="grid-template-columns: 1fr 1fr"] > div[style*="aspect-ratio: 4 / 3"] {
    order: -1;          /* 图片放到文字上方 */
    aspect-ratio: 16 / 10 !important;
    margin-bottom: 8px;
  }

  /* 四体系卡片总览：4 列在移动端堆叠 */
  section.section .container > .reveal[style*="grid-template-columns: repeat(4, 1fr)"] {
    grid-template-columns: 1fr 1fr !important;
    gap: 12px !important;
  }
  .section-eyebrow::before {
    content: "" !important;
    position: absolute !important;
    top: auto !important;            /* 覆盖 desktop 端 top: 50% */
    bottom: 0 !important;
    left: 50% !important;
    right: auto !important;
    transform: translateX(-50%) !important;
    width: 32px !important;
    height: 1px !important;
    background: var(--color-accent) !important;
  }
  .section-eyebrow::after {
    display: none !important;
    content: none !important;
  }
  .section-eyebrow { font-size: 11px; letter-spacing: 3px; }
  .section-title { font-size: 22px; line-height: 1.3; margin-bottom: 12px; }
  .section-desc { font-size: 13px; line-height: 1.7; }

  /* ============================================================
     各 section 卡片
     ============================================================ */
  .system-card-image,
  .factory-card-image,
  .project-card-image {
    aspect-ratio: 16 / 10;
  }
  .system-card-body,
  .factory-card-body,
  .project-card-body { padding: 16px; }
  .system-card-title,
  .factory-card-title,
  .project-card-title {
    font-size: 16px;
    line-height: 1.4;
  }
  .system-card-title-en,
  .project-card-tag,
  .factory-card-sub {
    font-size: 10px;
    letter-spacing: 1.5px;
  }
  .system-card-desc,
  .project-card-location {
    font-size: 12px;
  }
  .system-card-feature {
    font-size: 10px;
    padding: 3px 8px;
  }
  .system-card-no,
  .factory-card-no { font-size: 14px; }
  .factory-card-location { font-size: 10px; padding: 3px 8px; }

  /* 客户类型 */
  .client-types {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .client-type {
    padding: 20px 12px;
  }
  .client-type-icon { font-size: 28px; margin-bottom: 8px; }
  .client-type-name { font-size: 13px; }
  .client-type-name-en { font-size: 9px; }

  /* ============================================================
     contact 页面（3 列 grid 在平板以下堆叠成 1 列）
     ============================================================ */
  .contact-grid-3 {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }
  .contact-mini-map { min-height: 160px; }
  .contact-mini-map-pin { font-size: 36px; }

  /* systems 页四体系总览 inline 4 列 grid 强制改 1 列 */
  .section > .container > div[style*="grid-template-columns: repeat(4, 1fr)"] {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }

  /* ============================================================
     通用兜底：所有内联 grid-template-columns: repeat(N, 1fr)
     在 768px 以下统一改单列（针对历史模板里 inline 写的多列 grid）
     ============================================================ */
  div[style*="grid-template-columns: repeat(2, 1fr)"],
  div[style*="grid-template-columns: repeat(3, 1fr)"],
  div[style*="grid-template-columns: repeat(4, 1fr)"] {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }
  .contact-info-block { padding: 20px 16px; }
  .contact-info-title h3 { font-size: 18px; }
  .contact-info-title { gap: 12px; }
  .contact-item { padding: 12px; gap: 12px; }
  .contact-item-icon { width: 40px; height: 40px; font-size: 16px; }
  .contact-item-value { font-size: 15px; word-break: break-all; }
  .contact-socials {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 8px;
  }
  .social-link { padding: 12px 8px; }
  .social-link-name { font-size: 11px; }
  .contact-form-block { padding: 20px 16px; }
  .contact-form { gap: 12px; }
  .contact-form input,
  .contact-form textarea,
  .contact-form select { font-size: 14px; padding: 10px 12px; }

  /* ============================================================
     projects 章节页
     ============================================================ */
  /* intro 区 */
  .projects-intro-eyebrow,
  .designs-intro-eyebrow { font-size: 11px; padding: 6px 14px; letter-spacing: 4px; }
  .projects-intro-title,
  .designs-intro-title { font-size: 18px; line-height: 1.6; letter-spacing: 0; }
  .projects-intro-divider,
  .designs-intro-divider { width: 60px; height: 2px; margin-top: 20px; }
  .projects-intro-meta,
  .designs-intro-meta { flex-wrap: wrap; gap: 24px 32px; margin-top: 24px; padding-top: 20px; }
  .projects-intro-meta-item .meta-no,
  .designs-intro-meta-item .meta-no { font-size: 24px; }
  .projects-intro-meta-item .meta-label,
  .designs-intro-meta-item .meta-label { font-size: 10px; letter-spacing: 2px; }

  /* 章节索引（替代原 tab 栏） */
  .projects-index,
  .designs-index { padding: 48px 0; }
  .projects-index-eyebrow,
  .designs-index-eyebrow { font-size: 11px; letter-spacing: 4px; margin-bottom: 20px; }
  .projects-index-list,
  .designs-index-list {
    grid-template-columns: 1fr 1fr !important;
    gap: 0 !important;
  }
  .projects-index-item,
  .designs-index-item {
    flex: none !important;
    padding: 16px 14px;
    gap: 6px;
  }
  .projects-index-no,
  .designs-index-no { font-size: 22px !important; }
  .projects-index-name,
  .designs-index-name { font-size: 13px; }
  .projects-index-count,
  .designs-index-count { font-size: 10px; letter-spacing: 2px; }

  /* 章节块 */
  .projects-chapter,
  .designs-chapter { padding: 60px 0 48px; }
  .projects-chapter-watermark,
  .designs-chapter-watermark { font-size: 40px !important; opacity: 0.05; right: 0; top: 24px; }

  /* 章节头部：堆叠成 1 列 */
  .projects-chapter-header,
  .designs-chapter-header {
    display: flex !important;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 32px;
    padding-bottom: 24px;
  }
  .projects-chapter-header-right,
  .designs-chapter-header-right { padding-top: 0; }
  .projects-chapter-no,
  .designs-chapter-no { margin-bottom: 12px; gap: 8px; }
  .projects-chapter-no .chapter-no-num,
  .designs-chapter-no .chapter-no-num { font-size: 48px; letter-spacing: -2px; }
  .projects-chapter-no .chapter-no-label,
  .designs-chapter-no .chapter-no-label { font-size: 10px; letter-spacing: 4px; top: -4px; }
  .projects-chapter-title,
  .designs-chapter-title { font-size: 24px; padding-left: 16px; letter-spacing: 0; }
  .projects-chapter-desc,
  .designs-chapter-desc { font-size: 14px; line-height: 1.7; margin-bottom: 20px; }
  .projects-chapter-desc .drop-cap,
  .designs-chapter-desc .drop-cap { font-size: 36px; line-height: 0.9; margin: 4px 8px 0 0; }

  /* 章节统计：3 列横排 */
  .projects-chapter-stats,
  .designs-chapter-stats {
    flex-wrap: wrap;
    gap: 16px 20px !important;
    padding-top: 20px;
  }
  .projects-chapter-stat,
  .designs-chapter-stat { flex: 1 1 calc(33.33% - 14px); min-width: 80px; }
  .projects-chapter-stat-no,
  .designs-chapter-stat-no { font-size: 22px; }
  .projects-chapter-stat-label,
  .designs-chapter-stat-label { font-size: 10px; letter-spacing: 1px; }

  /* 首屏大图项目：图片占满，元数据堆叠 */
  .projects-hero,
  .designs-hero { display: block !important; }
  .projects-hero-image,
  .designs-hero-image { width: 100% !important; }
  .projects-hero-meta,
  .designs-hero-meta {
    display: block !important;
    padding: 20px 0 16px;
  }
  .projects-hero-no,
  .designs-hero-no { display: block; margin-bottom: 8px; padding-top: 0; }
  .projects-hero-title,
  .designs-hero-title { font-size: 22px; margin-bottom: 12px; }
  .projects-hero-info,
  .designs-hero-info { flex-wrap: wrap; gap: 16px 24px; }
  .projects-hero-info-item,
  .designs-hero-info-item { min-width: 100px; }
  .info-value { font-size: 13px; }

  /* 其余项目列表 */
  .projects-list-item,
  .designs-list-item {
    grid-template-columns: 1fr !important;
    gap: 0;
  }
  .projects-list-image,
  .designs-list-image {
    width: 100% !important;
    height: 200px !important;
  }
  .projects-list-body,
  .designs-list-body {
    padding: 16px !important;
    width: 100% !important;
  }
  .projects-list-title,
  .designs-list-title { font-size: 16px; }

  /* 行动号召 */
  .about-cta { padding: 48px 16px !important; }
  .about-cta-title { font-size: 22px !important; }
  .about-cta-desc { font-size: 13px !important; }
  .about-cta-actions { flex-direction: column; align-items: stretch; gap: 12px; }
  .about-cta-actions .btn { width: 100%; justify-content: center; }

  /* designs 章节页（同 projects 结构） */
  .designs-chapter-watermark { font-size: 40px !important; opacity: 0.05; }
  .designs-chapter-header,
  .designs-chapter-header-right,
  .designs-chapter-stats { flex-wrap: wrap; max-width: 100%; }

  /* ============================================================
     about 页面轻微溢出修复
     ============================================================ */
  .about-company-text,
  .about-company-quote,
  .team-image,
  .team-text,
  .team-stats,
  .team-stat { max-width: 100%; }
  .team-image { aspect-ratio: 16 / 9; height: auto; }
  .team-tagline { font-size: 13px; }
  .team-stat-no { font-size: 28px; }
  .team-stat-label { font-size: 11px; }

  /* equipment 流程步骤溢出 */
  .build-process-step { min-width: 80px; padding: 12px 6px; }
  .build-process-no { font-size: var(--font-xl); }
  .build-process-label { font-size: 10px; }
  .build-process-track { padding: 0; gap: 0; }

  /* banner 背景图 7px 溢出清理 */
  .page-banner .banner-photo { width: 100%; }

  /* 全球 stats 数据带（3+/12+/200+/60万㎡） */
  .global-stats-inner {
    grid-template-columns: repeat(2, 1fr);
    padding: 0 8px;
  }
  .global-stat {
    padding: 16px 8px;
  }
  .global-stat:nth-child(2n) { border-right: none; }
  .global-stat:nth-child(-n+2) { border-bottom: 1px solid rgba(255, 255, 255, 0.1); }
  .global-stat-no {
    font-size: 28px;
  }
  .global-stat-label {
    font-size: 11px;
    letter-spacing: 1px;
  }
  .global-stat-label-en {
    font-size: 9px;
    letter-spacing: 0.5px;
  }

  /* ============================================================
     CTA 区
     ============================================================ */
  .cta-grand {
    padding: 60px 16px;
  }
  .cta-grand-watermark { font-size: 100px; }
  .cta-grand-eyebrow { font-size: 11px; letter-spacing: 3px; }
  .cta-grand-title { font-size: 22px; line-height: 1.3; }
  .cta-grand-desc { font-size: 13px; }
  .cta-grand-actions {
    flex-direction: column;
    gap: 10px;
  }
  .cta-grand-actions .btn { width: 100%; }

  /* ============================================================
     详情页
     ============================================================ */
  .project-detail-section,
  .system-detail-section,
  .factory-detail-section { padding: 24px 0; }
  .factory-detail-hero { height: 240px; margin-bottom: 24px; }
  .factory-detail-hero-content {
    padding: 16px;
  }
  .factory-detail-info {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .factory-detail-section table td { font-size: 14px; }
  .project-detail-info,
  .system-detail-info { padding: 16px; }
  .project-detail-info h1,
  .system-detail-info h1 { font-size: 22px; }
  .design-detail-info { padding: 16px; }

  /* 系统特性 / 适用场景 列表 */
  .advantages-grid { gap: 12px; }
  .advantage-item { padding: 16px; }
  .advantage-item h3 { font-size: 14px; }
  .advantage-item p { font-size: 12px; }
  .applicable-list { gap: 12px; }
  .applicable-item { padding: 12px; font-size: 12px; }

  /* ============================================================
     Footer
     ============================================================ */
  .footer { padding: 40px 0 16px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-col h4 { font-size: 13px; margin-bottom: 12px; }
  .footer-col p, .footer-col a { font-size: 12px; }
  .footer-bottom { font-size: 11px; padding-top: 24px; }

  /* ============================================================
     Header / Nav
     ============================================================ */
  .nav-main,
  .lang-switch { display: none; }
  .nav-toggle { display: flex; }
  .nav-main.mobile-open {
    display: flex;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-primary);
    padding: 16px 0;
    border-top: 1px solid rgba(201, 169, 97, 0.2);
  }

  /* 顶部 header + logo 在移动端缩小：80px + 60px 占比偏大 */
  .header-inner { height: 60px; }
  .logo-image-top { height: 40px; }
  .nav-main.mobile-open a {
    padding: 16px 32px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  }

  /* ============================================================
     图集 / 通用图片
     ============================================================ */
  .gallery-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .vbv-top-grid { grid-template-columns: 1fr; }
  .vbv-top-card { aspect-ratio: 4 / 3; }

  /* ============================================================
     对比表 / 详情表
     ============================================================ */
  /* 4. 对比表：移动端整屏展示，不横滑 */
  .compare-table-wrap {
    margin: 0 -8px;
    padding: 0 8px;
  }
  .compare-table {
    min-width: 0;
    width: 100%;
    table-layout: fixed;
    font-size: 10px;
  }
  .compare-table th,
  .compare-table td {
    padding: 6px 2px;
    font-size: 9px;
  }
  .compare-table th {
    padding: 8px 2px;
    white-space: normal !important;       /* 覆盖 desktop nowrap，让 system-name 能换行 */
  }
  /* 第一列（对比项目）固定 48px */
  .compare-table th:first-child,
  .compare-table td:first-child {
    width: 48px;
    padding: 6px 4px;
    font-size: 10px;
    letter-spacing: 0;
  }
  /* 4 个 system 列等分（剩下宽度 / 4，最长 9 个汉字也能 2 行展示） */
  .compare-table th:not(:first-child),
  .compare-table td:not(:first-child) {
    width: calc((100% - 48px) / 4);
  }
  .compare-table th .system-name {
    display: block;
    width: 100%;
    font-size: 8px !important;
    letter-spacing: 0;
    line-height: 1.3;
    word-break: break-all;
    overflow-wrap: anywhere;
    padding: 0 1px;
  }
  .compare-table th .system-no {
    font-size: 8px;
    letter-spacing: 0;
    margin-bottom: 2px;
  }
  .compare-stars {
    gap: 1px;
    letter-spacing: 0;
    justify-content: center;
  }
  .compare-stars .star {
    width: 12px;
    height: 12px;
  }
  .compare-table tbody tr:last-child .compare-stars .star {
    width: 14px;
    height: 14px;
  }

  .table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    -webkit-touch-callout: none;
  }
  .table-scroll table { min-width: 320px; }

  /* ============================================================
     通用
     ============================================================ */
  .lang-switch-mobile {
    display: block;
    padding: 16px 32px 24px;
    border-top: 1px solid rgba(201, 169, 97, 0.2);
  }
  .lang-switch-mobile a {
    display: inline-block;
    padding: 8px 14px;
    color: var(--color-white);
    text-decoration: none;
    font-size: 14px;
    opacity: 0.85;
    border: 1px solid rgba(255, 255, 255, 0.15);
    margin: 4px 4px 4px 0;
    border-radius: 4px;
  }
  .lang-switch-mobile a.active {
    background: var(--color-accent);
    color: var(--color-primary);
    border-color: var(--color-accent);
    opacity: 1;
  }

  /* tap 高亮 */
  a, button, .gallery-item, .vbv-top-card, .vbv-tag-chip {
    -webkit-tap-highlight-color: rgba(201, 169, 97, 0.18);
  }

  /* safe-area */
  body { padding-bottom: env(safe-area-inset-bottom); }
  .footer { padding-bottom: calc(16px + env(safe-area-inset-bottom)); }

  /* 按钮默认 14px、padding 适中 */
  .btn {
    padding: 10px 18px;
    font-size: 12px;
  }
}

/* ---------- 480px：紧凑移动端 ---------- */
@media (max-width: 480px) {
  .hero-content { padding: 24px 16px 20px; }
  .hero-title { font-size: 22px !important; line-height: 1.3; }
  .hero-title .accent { font-size: 9px !important; letter-spacing: 2px; }
  .hero-eyebrow { font-size: 10px; }
  .hero-subtitle { font-size: 12px; }
  .hero-tagline { font-size: 11px; }
  .stat-value { font-size: 22px; }
  .stat-label { font-size: 9px; }

  .page-banner { min-height: 200px; }
  .page-banner-content { padding: 20px 14px; }
  .page-banner-content h1 { font-size: 20px !important; }
  .page-banner h1 .accent { font-size: 8px !important; letter-spacing: 2px; }
  .page-banner p { font-size: 11px; }
  .page-banner-no { font-size: 9px; letter-spacing: 1.5px; }
  .page-banner-no .num { font-size: 12px; }

  .section { padding: 32px 0; }
  .section-title { font-size: 20px; }
  .section-eyebrow { font-size: 10px; letter-spacing: 2px; }
  /* 移动端：隐藏 section 顶部金色分隔线，避免和 eyebrow 撞在一起 */
  .systems-compare::after { display: none !important; }
  /* eyebrow 装饰线居中短金线（已在 768px 媒体查询里定义，此处仅微调） */
  .section-eyebrow { padding: 0 0 12px !important; }
  .section-desc { font-size: 12px; }

  .about-hero-stat-no { font-size: 24px; }
  .about-hero-stat-label { font-size: 10px; }
  .about-hero-stat-sub { font-size: 8px; }
  /* 480px 以下仍保持 2x2 网格，不退化为单列列表 */
  .about-hero-stats-inner { grid-template-columns: 1fr 1fr; }
  .about-hero-stat { border-right: 1px solid rgba(255, 255, 255, 0.1); border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
  .about-hero-stat:nth-child(2n) { border-right: none; }
  .about-hero-stat:nth-last-child(-n+2) { border-bottom: none; }

  .global-stat-no { font-size: 24px; }
  .global-stat-label { font-size: 10px; letter-spacing: 0.5px; }
  .global-stat-label-en { font-size: 8px; }
  .global-stats-inner { padding: 0 4px; }
  .global-stat { padding: 12px 6px; }

  .client-types { grid-template-columns: 1fr 1fr; gap: 8px; }
  .client-type { padding: 16px 8px; }
  .client-type-icon { font-size: 24px; }
  .client-type-name { font-size: 12px; }
  .client-type-name-en { font-size: 8px; }

  .cta-grand { padding: 48px 16px; }
  .cta-grand-title { font-size: 20px; }
  .cta-grand-watermark { font-size: 80px; }
  .cta-grand-desc { font-size: 12px; }

  .system-card-title,
  .factory-card-title,
  .project-card-title { font-size: 15px; }

  .hero-actions .btn {
    padding: 11px 16px;
    font-size: 12px;
  }

  .gallery-grid { grid-template-columns: 1fr; }
  .gallery-item { aspect-ratio: 4 / 3; }
  .vbv-tag-chip { font-size: 12px; padding: 6px 10px; }
  .compare-table { min-width: 0; font-size: 10px; }
  /* 极小屏：第一列再压一点，给 system 列更多空间 */
  .compare-table th:first-child,
  .compare-table td:first-child { width: 42px; font-size: 9px; padding: 6px 2px; }
  .compare-table th .system-name { font-size: 7px !important; line-height: 1.25; }
  .compare-table th .system-no { font-size: 7px; }
  .compare-stars { letter-spacing: 0; gap: 0; }
  .compare-stars .star { width: 10px; height: 10px; }
  /* 极小屏：四体系卡片 1 列堆叠 */
  section.section .container > .reveal[style*="grid-template-columns: repeat(4, 1fr)"] {
    grid-template-columns: 1fr !important;
  }
  /* 极小屏：详情区图片与文字之间间距更小 */
  section.section-dark .container > .reveal[style*="grid-template-columns: 1fr 1fr"] {
    gap: 16px !important;
  }
  /* 极小屏：projects/designs 章节页细节微调 */
  .projects-intro-title,
  .designs-intro-title { font-size: 16px; }
  .projects-intro-meta,
  .designs-intro-meta { gap: 16px 24px; }
  .projects-intro-meta-item .meta-no,
  .designs-intro-meta-item .meta-no { font-size: 20px; }
  .projects-index-list,
  .designs-index-list { grid-template-columns: 1fr 1fr !important; }
  .projects-index-item,
  .designs-index-item { padding: 12px 14px; }
  /* 2 列时偶数列去掉右框，保持 1|2、3|4 视觉对称 */
  .projects-index-item:nth-child(2n),
  .designs-index-item:nth-child(2n) { border-right: none; }
  .projects-chapter-title,
  .designs-chapter-title { font-size: 20px; }
  .projects-chapter-no .chapter-no-num,
  .designs-chapter-no .chapter-no-num { font-size: 36px; }
  .projects-chapter-desc,
  .designs-chapter-desc { font-size: 13px; line-height: 1.6; }
  .projects-chapter-desc .drop-cap,
  .designs-chapter-desc .drop-cap { font-size: 28px; }
  .projects-chapter-stat,
  .designs-chapter-stat { flex: 1 1 calc(33.33% - 12px); }
  .projects-chapter-stat-no,
  .designs-chapter-stat-no { font-size: 18px; }
  .projects-chapter-stat-label,
  .designs-chapter-stat-label { font-size: 9px; }
  .projects-hero-title,
  .designs-hero-title { font-size: 18px; }
  .projects-hero-info,
  .designs-hero-info { gap: 12px 20px; }
  .info-value { font-size: 12px; }
}

/* ============================================================
   Lightbox（PC + 移动都支持，键盘 + 触屏 + 缩放）
   ============================================================ */
.vbv-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.92);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  -webkit-tap-highlight-color: transparent;
  touch-action: pan-y;
}
.vbv-lightbox.is-open {
  opacity: 1;
  pointer-events: auto;
}
.vbv-lightbox-img {
  max-width: 95vw;
  max-height: 88vh;
  object-fit: contain;
  user-select: none;
  -webkit-user-drag: none;
  touch-action: pinch-zoom;
  transition: transform 0.2s ease;
  transform-origin: center center;
}
.vbv-lightbox-img.is-zoomed {
  transform: scale(2);
  cursor: zoom-out;
}
.vbv-lightbox-close,
.vbv-lightbox-prev,
.vbv-lightbox-next {
  position: absolute;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.2);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  font-size: 22px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  -webkit-tap-highlight-color: transparent;
  z-index: 10000;
  padding: 0;
  line-height: 1;
  font-family: -apple-system, BlinkMacSystemFont, sans-serif;
  transition: background 0.2s ease;
}
.vbv-lightbox-close:hover,
.vbv-lightbox-prev:hover,
.vbv-lightbox-next:hover { background: rgba(255, 255, 255, 0.22); }
.vbv-lightbox-close { top: 16px; right: 16px; font-size: 28px; }
.vbv-lightbox-prev { left: 12px; top: 50%; transform: translateY(-50%); }
.vbv-lightbox-next { right: 12px; top: 50%; transform: translateY(-50%); }
.vbv-lightbox-counter {
  position: absolute;
  top: 24px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
  font-family: monospace;
  letter-spacing: 1px;
  user-select: none;
}
.vbv-lightbox-zoom-hint {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.55);
  font-size: 12px;
  user-select: none;
  text-align: center;
}
@media (max-width: 768px) {
  .vbv-lightbox-close,
  .vbv-lightbox-prev,
  .vbv-lightbox-next { width: 44px; height: 44px; font-size: 20px; }
  .vbv-lightbox-close { top: 12px; right: 12px; }
  .vbv-lightbox-prev { left: 8px; }
  .vbv-lightbox-next { right: 8px; }
}

/* ============================================================
   多分辨率图片（响应式 srcset）
   ============================================================ */
img.vbv-responsive {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ============================================================
   移动端首次访问语言选择 modal（layout.html head 里动态注入 DOM）
   ============================================================ */
.lang-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(10, 42, 78, 0.88);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.lang-modal-overlay.is-visible {
  opacity: 1;
}
.lang-modal {
  background: #ffffff;
  border-radius: 16px;
  padding: 32px 24px 28px;
  max-width: 380px;
  width: 100%;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.45);
  transform: translateY(20px);
  transition: transform 0.3s ease;
}
.lang-modal-overlay.is-visible .lang-modal {
  transform: translateY(0);
}
.lang-modal-brand {
  display: flex;
  justify-content: center;
  margin-bottom: 16px;
}
.lang-modal-brand img {
  height: 40px;
  width: auto;
}
.lang-modal-title {
  font-size: 20px;
  font-weight: 700;
  color: #0a2a4e;
  text-align: center;
  margin: 0 0 8px;
  line-height: 1.3;
}
.lang-modal-hint {
  font-size: 13px;
  color: #6b7785;
  text-align: center;
  margin: 0 0 24px;
  line-height: 1.5;
}
.lang-modal-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.lang-modal-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 18px 12px;
  font-size: 16px;
  font-weight: 600;
  border: 2px solid #e0e6ed;
  border-radius: 10px;
  background: #ffffff;
  color: #0a2a4e;
  cursor: pointer;
  transition: all 0.2s ease;
  -webkit-tap-highlight-color: transparent;
  font-family: inherit;
}
.lang-modal-btn:hover,
.lang-modal-btn:focus-visible {
  border-color: #0a2a4e;
  background: #f4f7fa;
  outline: none;
}
.lang-modal-btn:active {
  transform: scale(0.96);
  background: #0a2a4e;
  color: #ffffff;
  border-color: #0a2a4e;
}
.lang-modal-flag {
  font-size: 28px;
  line-height: 1;
}
.lang-modal-name {
  font-size: 15px;
}

@media (max-width: 360px) {
  .lang-modal-grid {
    grid-template-columns: 1fr;
  }
  .lang-modal-btn {
    flex-direction: row;
    justify-content: flex-start;
    gap: 12px;
    padding: 14px 16px;
  }
  .lang-modal-flag {
    font-size: 22px;
  }
}

/* ===== 关于我们：公司简介 / 设计团队 / 施工团队 多图轮播 ===== */
/* 多张背景图叠放，is-active 帧可见；上传为空时单张静态图兜底 */
.team-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0;
  transition: opacity 1.5s ease-in-out;
  z-index: 1;
}
.team-slide.is-active {
  opacity: 1;
  z-index: 2;
}
/* 公司简介 .image-inner 内的 slide 不能撑满 image-inner 的内边距：填满 100% */
.about-company-image .image-inner .team-slide { inset: 0; }

/* 轮播指示点：图片底部居中 */
.team-indicators {
  position: absolute;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 5;
  pointer-events: auto;
}
.team-indicator {
  width: 24px;
  height: 2px;
  background: rgba(255, 255, 255, 0.45);
  cursor: pointer;
  transition: background 0.4s ease, width 0.4s ease;
}
.team-indicator.is-active {
  background: var(--color-accent, #d4a657);
  width: 36px;
}
.team-indicator:hover {
  background: rgba(255, 255, 255, 0.75);
}

/* 减少动效偏好时直接展示第一张，不做 fade */
@media (prefers-reduced-motion: reduce) {
  .team-slide {
    transition: none;
  }
  .team-slide:not(.is-active) {
    opacity: 0;
  }
}
/* ============================================================
   关于我们 重新布局：图片横幅 (16:9) + 居中文字
   三个模块（公司简介 / 设计团队 / 施工团队）统一结构
   ============================================================ */

/* 图片横幅：全宽 16:9 + 圆角 + 投影 + 金色边框 */
.about-image-banner {
  position: relative;
  width: 100%;
  max-width: var(--container-max, 1200px);
  margin: 0 auto;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: 4px;
  border: 2px solid var(--color-accent);
  box-shadow: 0 20px 56px rgba(10, 25, 41, 0.18), 0 4px 12px rgba(10, 25, 41, 0.08);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  /* 移动端：禁用浏览器水平滚动/回弹，水平滑动交给 JS 处理（attachTouchSwipe）；
     保留垂直滚动以免页面不能上下滑 */
  touch-action: pan-y;
  -webkit-user-select: none;
  user-select: none;
}

.about-image-banner > .about-image-inner {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

/* banner 的角装饰：左上 + 右下金色 L 角 */
.about-image-banner > .corner-tl,
.about-image-banner > .corner-br {
  position: absolute;
  width: 56px;
  height: 56px;
  z-index: 4;
  pointer-events: none;
}
.about-image-banner > .corner-tl {
  top: 14px;
  left: 14px;
  border-top: 2px solid var(--color-accent);
  border-left: 2px solid var(--color-accent);
}
.about-image-banner > .corner-br {
  bottom: 14px;
  right: 14px;
  border-bottom: 2px solid var(--color-accent);
  border-right: 2px solid var(--color-accent);
}

/* 关于我们轮播图角标：常驻"查看更多 →"提示用户点击跳详情页
 * 贴近图片底部中央，默认玻璃感半透明，hover 时加深 + 箭头平移 */
.about-banner-cta {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px 6px 16px;
  background: rgba(15, 23, 42, 0.72);
  color: var(--color-white, #ffffff);
  border: 1px solid rgba(201, 169, 97, 0.55);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-decoration: none;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 6px 18px rgba(10, 25, 41, 0.28);
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
  cursor: pointer;
  pointer-events: auto;
}
.about-banner-cta:hover {
  background: rgba(15, 23, 42, 0.92);
  border-color: var(--color-accent, #c9a961);
  transform: translateX(-50%) translateY(-2px);
  box-shadow: 0 10px 24px rgba(10, 25, 41, 0.4);
}
.about-banner-cta:focus-visible {
  outline: 2px solid var(--color-accent, #c9a961);
  outline-offset: 2px;
}
.about-banner-cta-label strong {
  color: var(--color-accent, #c9a961);
  font-weight: 700;
  margin: 0 2px;
  font-variant-numeric: tabular-nums;
}
.about-banner-cta-arrow {
  display: inline-block;
  transition: transform 0.25s ease;
  font-weight: 600;
}
.about-banner-cta:hover .about-banner-cta-arrow {
  transform: translateX(4px);
}

/* banner 内的 team-slide 充满 */
.about-image-inner .team-slide {
  position: absolute;
  inset: 0;
}

/* banner 上叠加的数字水印 */
.about-image-banner > .team-no {
  position: absolute;
  top: 20px;
  left: 22px;
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 72px;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.9);
  letter-spacing: 4px;
  z-index: 4;
  pointer-events: none;
  line-height: 1;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
}

/* 左右 grid 内的标题：左对齐，颜色 #0a1929 深海军蓝，字重 900（笔画厚实）*/
.title-left {
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 900;
  color: var(--color-primary);
  margin: 0 0 20px;
  letter-spacing: -0.3px;
  line-height: 1.25;
  font-family: "Source Han Sans CN Heavy", "Source Han Sans SC", "PingFang SC Heavy", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", "Segoe UI", Arial, sans-serif;
}

/* 段落：公司介绍正文的 p（直接是 container 子元素，前 3 段环绕图片、后 2 段撑满全宽） */
.about-company-section > .container > p,
.team-section > .container > p,
.team-section-dark > .container > p {
  color: #666;
  line-height: 1.7;
  margin: 0 0 20px;
  font-size: var(--font-base, 16px);
}
.about-company-section > .container > p:last-of-type {
  margin-bottom: 0;
}
/* 第一段首字下沉 */
.about-company-section > .container > p:first-of-type::first-letter {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 44px;
  font-weight: 800;
  color: var(--color-accent);
  float: left;
  line-height: 1;
  margin: 2px 12px 0 0;
  padding: 0;
}

/* pull quote（公司简介数据）—— 左对齐、横向（金色大数字 + 灰色小标签） */
.about-company-quote {
  margin: 48px 0 0;
  padding: 18px 0 18px 24px;
  border-left: 3px solid var(--color-accent);
  background: transparent;
  text-align: left;
  display: flex;
  flex-direction: row;
  align-items: baseline;
  gap: 18px;
}
.about-company-quote-no {
  font-family: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
  font-size: 48px;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}
.about-company-quote-no small {
  font-size: 26px;
  color: var(--color-accent);
  font-weight: 700;
  opacity: 0.7;
}
.about-company-quote-text {
  font-size: 14px;
  color: #666;
  letter-spacing: 1px;
  margin-top: 0;
}

/* 设计团队：5 项能力 — 2 列布局放进图片左下空白（节约垂直空间） */
.team-capabilities-5col {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-top: 32px;
  text-align: center;
}
.team-capabilities-5col .team-cap {
  position: relative;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  min-height: 64px;
  padding: 14px 18px;
  background: var(--color-white, #ffffff);
  border: 1px solid var(--color-border, rgba(201, 169, 97, 0.15));
  border-left: 3px solid var(--color-accent);
  border-radius: 2px;
  gap: 12px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.team-capabilities-5col .team-cap:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(10, 25, 41, 0.08);
  border-color: var(--color-accent);
}
.team-capabilities-5col .team-cap-no {
  font-size: 24px;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
  min-width: 32px;
}
.team-capabilities-5col .team-cap-text {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  line-height: 1.4;
  text-align: left;
}

/* 施工团队：4 项 stats 4 列横排 */
.team-stats-4col {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
  background: transparent;
  text-align: center;
}
.team-stats-4col .team-stat {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  min-height: 132px;
  padding: 28px 20px;
  background: var(--color-white, #ffffff);
  border: 1px solid var(--color-border, rgba(201, 169, 97, 0.15));
  border-radius: 4px;
  border-right: none;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.team-stats-4col .team-stat:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(10, 25, 41, 0.08);
  border-color: var(--color-accent);
}
.team-stats-4col .team-stat-no {
  font-size: 40px;
  line-height: 1.1;
  white-space: nowrap;
}
.team-stats-4col .team-stat-label {
  margin-top: 10px;
  line-height: 1.4;
}

/* ===== 移动端适配 ===== */
@media (max-width: 768px) {
  .about-image-banner {
    border-radius: 2px;
    box-shadow: 0 12px 32px rgba(10, 25, 41, 0.14);
  }
  .about-image-banner > .team-no {
    font-size: 48px;
  }
  /* 移动端：float 图片改为占满一行 */
  .float-image {
    float: none !important;
    width: 100% !important;
    margin: 0 0 20px 0 !important;
  }
  .title-left {
    font-size: 24px;
  }
  .about-company-section > .container > p:first-of-type::first-letter {
    font-size: 44px;
  }
  .team-capabilities-5col {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .team-stats-4col {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .team-stats-4col .team-stat-no {
    font-size: 32px;
  }
  .about-company-quote {
    margin-top: 40px;
    padding: 20px 24px;
  }
  .about-company-quote-no {
    font-size: 40px;
  }
  /* 移动端：CTA 缩小一点 */
  .about-banner-cta {
    font-size: 11px;
    padding: 6px 12px 6px 14px;
    gap: 6px;
  }
}

/* ====================================================== */
/* About Gallery：关于我们图片列表页                        */
/* ====================================================== */

/* 顶部 fixed 返回按钮：桌面端默认隐藏（导航栏已有"关于我们"），移动端保留 */
.about-gallery-back {
  position: fixed;
  top: 110px;
  right: 32px;
  z-index: 50;
  display: none;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  background: rgba(15, 23, 42, 0.78);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: transform 0.2s ease, background 0.2s ease;
}
.about-gallery-back::before {
  content: '←';
  font-size: 16px;
  letter-spacing: 0;
}
.about-gallery-back:hover {
  background: rgba(15, 23, 42, 0.92);
  transform: translateX(-4px);
}

/* banner 背景图：cover + ken burns 微动 */
.about-gallery-banner-photo {
  background-size: cover !important;
  background-position: center !important;
  animation: gallery-banner-zoom 20s ease-in-out infinite alternate;
}
@keyframes gallery-banner-zoom {
  0%   { transform: scale(1.02); }
  100% { transform: scale(1.10); }
}

/* ========== 数量摘要条 ========== */
.about-gallery-summary {
  padding: 64px 0 16px;
  background: linear-gradient(180deg, transparent 0%, rgba(15,23,42,0.02) 100%);
}
.about-gallery-summary-inner {
  display: flex;
  align-items: baseline;
  gap: 32px;
  border-bottom: 1px solid var(--color-border, #e5e7eb);
  padding-bottom: 24px;
}
.about-gallery-summary-no {
  display: flex;
  align-items: baseline;
  gap: 12px;
  color: var(--color-primary, #0f172a);
}
.about-gallery-summary-no .num {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 88px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--color-accent, #b8923d);
}
.about-gallery-summary-no .suffix {
  font-size: 12px;
  letter-spacing: 0.32em;
  color: var(--color-text-light, #6b7280);
}
.about-gallery-summary-text {
  font-size: 14px;
  color: var(--color-text-light, #6b7280);
  letter-spacing: 0.04em;
}

/* ========== Masonry 不规则大图 Grid ========== */
.about-gallery-grid-section {
  padding: 16px 0 96px;
}
.about-gallery-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  margin-top: 24px;
}

/* Hero 首图：横跨 6 列 */
.about-gallery-card.is-hero {
  grid-column: span 6;
  grid-row: span 2;
  aspect-ratio: 16 / 9;
}
/* 前 3 张大图：横跨 3 列 */
.about-gallery-card.is-large {
  grid-column: span 3;
  aspect-ratio: 16 / 9;
}
/* 其余常规：横跨 2 列 */
.about-gallery-card {
  grid-column: span 2;
  aspect-ratio: 16 / 9;
  margin: 0;
  position: relative;
  overflow: hidden;
  background: #1f2937;
  border-radius: 4px;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.12);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}
.about-gallery-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.22);
  z-index: 2;
}

/* 卡片图片容器 + hover 缩放 */
.about-gallery-card-img-wrap {
  display: block;
  width: 100%;
  height: 100%;
  position: relative;
  overflow: hidden;
  text-decoration: none;
}
.about-gallery-card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease, filter 0.4s ease;
}
.about-gallery-card:hover .about-gallery-card-img-wrap img {
  transform: scale(1.08);
  filter: brightness(1.05) saturate(1.1);
}

/* 卡片上的暗角 + 序号 */
.about-gallery-card-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0) 55%, rgba(0,0,0,0.55) 100%);
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.about-gallery-card:hover .about-gallery-card-shade {
  background: linear-gradient(180deg, rgba(0,0,0,0) 30%, rgba(0,0,0,0.7) 100%);
}
.about-gallery-card-no {
  position: absolute;
  bottom: 14px;
  left: 18px;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 28px;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.04em;
  text-shadow: 0 2px 8px rgba(0,0,0,0.5);
  z-index: 2;
}
.about-gallery-card.is-hero .about-gallery-card-no {
  font-size: 48px;
  bottom: 24px;
  left: 32px;
}
.about-gallery-card.is-large .about-gallery-card-no {
  font-size: 36px;
  bottom: 18px;
  left: 24px;
}

/* 标题（figcaption，hover 时浮起）*/
.about-gallery-card-title {
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 56px;
  color: #fff;
  font-size: 14px;
  letter-spacing: 0.04em;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 2;
  text-shadow: 0 2px 8px rgba(0,0,0,0.5);
  pointer-events: none;
}
.about-gallery-card.is-hero .about-gallery-card-title {
  font-size: 18px;
  left: 32px;
  bottom: 88px;
}
.about-gallery-card.is-large .about-gallery-card-title {
  font-size: 16px;
  bottom: 68px;
}
.about-gallery-card:hover .about-gallery-card-title {
  opacity: 1;
  transform: translateY(0);
}

/* ========== 空状态 ========== */
.about-gallery-empty {
  margin-top: 80px;
  padding: 80px 32px;
  text-align: center;
  font-size: 16px;
  letter-spacing: 0.12em;
  color: var(--color-text-light, #6b7280);
  border: 1px dashed var(--color-border, #e5e7eb);
  border-radius: 4px;
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .about-gallery-card.is-hero {
    grid-column: span 6;
    aspect-ratio: 16 / 9;
  }
  .about-gallery-card.is-large {
    grid-column: span 3;
    aspect-ratio: 16 / 9;
  }
  .about-gallery-card {
    grid-column: span 3;
    aspect-ratio: 16 / 9;
  }
}
@media (max-width: 640px) {
  .about-gallery-back {
    display: inline-flex;
    top: 80px;
    right: 16px;
    padding: 8px 16px;
    font-size: 11px;
  }
  .about-gallery-summary-no .num {
    font-size: 56px;
  }
  .about-gallery-card.is-hero,
  .about-gallery-card.is-large,
  .about-gallery-card {
    grid-column: span 6;
    aspect-ratio: 16 / 9;
  }
  .about-gallery-card.is-hero {
    aspect-ratio: 16 / 9;
  }
}