/* ============================================================
   10001 官网模板 - 顶级科技感设计（GEO+AI Agent 适用）
   设计语言：深空蓝黑 · 玻璃拟态 · 渐变光效 · 流畅动效
   - 主色：靛蓝 #6366F1 → 紫 #8B5CF6 渐变
   - 强调：青 #22D3EE
   - 所有类名与原模板 100% 兼容，HTML 零改动
   - 仅调整视觉，不改动任何 data-* 占位结构
   ============================================================ */

/* ── CSS 变量（浅色模式默认）── */
:root {
  --c-bg: #F6F8FC;
  --c-bg-soft: #EEF1F8;
  --c-surface: #FFFFFF;
  --c-surface-2: #F1F4FA;
  --c-surface-3: #E8ECF5;
  --c-text: #0B1120;
  --c-text-light: #475569;
  --c-muted: #94A3B8;
  --c-line: #E2E8F0;
  --c-line-soft: #EEF2F7;
  --c-primary: #6366F1;
  --c-primary-2: #8B5CF6;
  --c-primary-deep: #4338CA;
  --c-accent: #06B6D4;
  --c-accent-2: #22D3EE;
  --c-accent-soft: #ECFEFF;
  --c-success: #10B981;
  --c-warning: #F59E0B;
  --c-danger: #EF4444;

  --radius: 16px;
  --radius-sm: 12px;
  --radius-xs: 9px;
  --radius-lg: 22px;
  --container: 1180px;
  --header-h: 70px;

  --shadow-xs: 0 1px 2px rgba(15,23,42,.04);
  --shadow-sm: 0 2px 8px -2px rgba(15,23,42,.08), 0 1px 3px rgba(15,23,42,.04);
  --shadow: 0 12px 32px -8px rgba(59,56,120,.12), 0 4px 12px -4px rgba(15,23,42,.06);
  --shadow-lg: 0 28px 60px -16px rgba(59,56,120,.22), 0 8px 20px -8px rgba(15,23,42,.08);
  --shadow-glow: 0 0 40px rgba(99,102,241,.25);
  --shadow-glow-cyan: 0 0 40px rgba(34,211,238,.25);

  --grad-primary: linear-gradient(135deg, #6366F1 0%, #8B5CF6 100%);
  --grad-accent: linear-gradient(135deg, #06B6D4 0%, #22D3EE 100%);
  --grad-hero: linear-gradient(135deg, #312E81 0%, #4338CA 35%, #6366F1 65%, #06B6D4 100%);
  --grad-text: linear-gradient(105deg, #0B1120 0%, #4338CA 50%, #06B6D4 100%);
  --grad-border: linear-gradient(135deg, rgba(99,102,241,.6), rgba(34,211,238,.6));
}

/* ── 深色模式 ── */
html[data-theme="dark"] {
  --c-bg: #070B14;
  --c-bg-soft: #0A0F1C;
  --c-surface: #0F1629;
  --c-surface-2: #131C33;
  --c-surface-3: #1A2440;
  --c-text: #F1F5F9;
  --c-text-light: #94A3B8;
  --c-muted: #64748B;
  --c-line: #1E293B;
  --c-line-soft: #151E33;
  --c-primary: #818CF8;
  --c-primary-2: #A78BFA;
  --c-primary-deep: #4338CA;
  --c-accent: #22D3EE;
  --c-accent-2: #67E8F9;
  --c-accent-soft: #0E2230;

  --shadow-xs: 0 1px 2px rgba(0,0,0,.3);
  --shadow-sm: 0 2px 8px -2px rgba(0,0,0,.4), 0 1px 3px rgba(0,0,0,.2);
  --shadow: 0 12px 32px -8px rgba(0,0,0,.5), 0 4px 12px -4px rgba(0,0,0,.3);
  --shadow-lg: 0 28px 60px -16px rgba(0,0,0,.6), 0 8px 20px -8px rgba(0,0,0,.4);
  --shadow-glow: 0 0 50px rgba(129,140,248,.2);
  --shadow-glow-cyan: 0 0 50px rgba(34,211,238,.2);

  --grad-text: linear-gradient(105deg, #F1F5F9 0%, #A78BFA 50%, #67E8F9 100%);
  --grad-border: linear-gradient(135deg, rgba(129,140,248,.5), rgba(34,211,238,.5));
}

/* ── Reset & Base ── */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: "Inter", "SF Pro Display", system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--c-text);
  background: var(--c-bg);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background-color .4s ease, color .4s ease;
}
a { color: inherit; text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--c-accent); }
img { max-width: 100%; display: block; }
ul { list-style: none; }
h1, h2, h3, h4, h5 { font-weight: 700; line-height: 1.2; letter-spacing: -.02em; }
p { margin: 0 0 1em; }

/* ── 滚动条 ── */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--c-line); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--c-primary); }

/* ── 选中文本 ── */
::selection { background: rgba(99,102,241,.25); color: var(--c-text); }

/* ── focus ── */
:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 3px;
  border-radius: 6px;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

/* ============================ 顶部导航 ============================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--c-line-soft);
  transition: background .3s ease, box-shadow .3s ease, border-color .3s ease;
}
html[data-theme="dark"] .site-header {
  background: rgba(7,11,20,.72);
}
.site-header.scrolled {
  box-shadow: 0 4px 24px -8px rgba(15,23,42,.12);
  border-bottom-color: var(--c-line);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  flex-wrap: nowrap;
}

.logo { display: flex; align-items: center; gap: 12px; flex: 0 0 auto; min-width: 0; }
.logo-img {
  height: 38px; width: auto; object-fit: contain;
  border-radius: 8px;
  box-shadow: var(--shadow-xs);
}
.logo-text {
  font-size: 18px; font-weight: 700; white-space: nowrap;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -.01em;
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.main-nav { flex: 0 0 auto; margin: 0 auto; display: flex; justify-content: center; }
.nav-list { display: flex; flex-wrap: nowrap; gap: 4px; }
.nav-list .nav-item > a {
  display: block;
  padding: 0 16px;
  line-height: var(--header-h);
  font-size: 14px;
  font-weight: 500;
  color: var(--c-text-light);
  position: relative;
  transition: color .2s ease;
}
.nav-list .nav-item > a::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 14px;
  width: 0; height: 2px;
  background: var(--grad-primary);
  border-radius: 99px;
  transition: width .25s ease, left .25s ease;
}
.nav-list .nav-item > a:hover { color: var(--c-text); }
.nav-list .nav-item > a:hover::after { width: 20px; left: calc(50% - 10px); }
.nav-list .nav-item.active > a { color: var(--c-text); font-weight: 600; }
.nav-list .nav-item.active > a::after { width: 24px; left: calc(50% - 12px); background: var(--grad-accent); }

.header-tools { display: flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.tel-link {
  display: inline-flex; align-items: center; gap: 7px;
  color: var(--c-text); font-weight: 600; font-size: 13.5px;
  padding: 8px 16px;
  border: 1px solid var(--c-line);
  border-radius: 99px;
  background: var(--c-surface);
  transition: all .25s ease;
}
.tel-link:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
  box-shadow: 0 0 0 4px rgba(99,102,241,.08);
}
.tel-link svg { width: 15px; height: 15px; }

.mobile-toggle {
  display: none;
  background: none; border: 0; cursor: pointer;
  padding: 6px; color: var(--c-text);
}
.mobile-toggle svg { width: 24px; height: 24px; }

.mobile-menu {
  display: none;
  position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,.5);
  backdrop-filter: blur(4px);
}
.mobile-menu.open { display: block; }
.mobile-menu .panel {
  position: absolute; right: 0; top: 0; bottom: 0;
  width: 82%; max-width: 320px;
  background: var(--c-surface);
  padding: 60px 24px 24px;
  overflow-y: auto;
  border-left: 1px solid var(--c-line);
  box-shadow: var(--shadow-lg);
  animation: slideInRight .3s cubic-bezier(.22,.61,.36,1);
}
@keyframes slideInRight { from { transform: translateX(100%); } to { transform: translateX(0); } }
.mobile-menu .close {
  position: absolute; right: 16px; top: 16px;
  background: none; border: 0; cursor: pointer;
  color: var(--c-text);
  width: 36px; height: 36px;
  display: grid; place-items: center;
  border-radius: 8px;
  transition: background .2s ease;
}
.mobile-menu .close:hover { background: var(--c-surface-2); }
.mobile-menu .close svg { width: 20px; height: 20px; }
.mobile-menu .nav-list { flex-direction: column; gap: 0; }
.mobile-menu .nav-item > a {
  line-height: 52px;
  border-bottom: 1px solid var(--c-line-soft);
  border-radius: 0;
  color: var(--c-text);
  font-size: 15px;
  padding: 0 8px;
}
.mobile-menu .nav-item > a::after { display: none; }
.mobile-menu .nav-item.active > a { color: var(--c-primary); }

/* ============================ 通用区块 ============================ */
.section {
  padding: 90px 0;
  position: relative;
}
/* 偶数区块交替背景，增加节奏 */
.section:nth-of-type(even) {
  background: var(--c-bg-soft);
}
html[data-theme="dark"] .section:nth-of-type(even) {
  background: var(--c-bg-soft);
}
/* 区块顶部渐变分隔线 */
.section + .section::before {
  content: "";
  position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 100px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-primary), var(--c-accent), transparent);
  opacity: .5;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 42px;
  gap: 16px;
}
.section-title {
  font-size: 30px;
  font-weight: 700;
  letter-spacing: -.025em;
  color: var(--c-text);
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 14px;
}
/* 标题左侧渐变竖条 */
.section-title::before {
  content: "";
  display: inline-block;
  width: 5px; height: 1.15em;
  background: var(--grad-primary);
  border-radius: 99px;
  flex: 0 0 auto;
  box-shadow: 0 0 12px rgba(99,102,241,.4);
}
.section-more {
  color: var(--c-muted);
  font-size: 14px;
  font-weight: 500;
  transition: all .2s ease;
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px;
  border-radius: 99px;
  border: 1px solid var(--c-line);
  background: var(--c-surface);
}
.section-more:hover {
  color: var(--c-primary);
  border-color: var(--c-primary);
  background: rgba(99,102,241,.04);
}
.section-more::after {
  content: "→";
  font-size: 13px;
  transition: transform .2s ease;
}
.section-more:hover::after { transform: translateX(3px); }

/* ============================ Hero Banner ============================ */
/* 标准做法：banner 作为页面顶部内容块，宽度与页面容器(1180px)对齐并居中，
   高度按 16:9 计算（≈664px），图片 contain 完整显示不裁切，不再占满整屏 */
.banner {
  position: relative;
  overflow: hidden;
  width: 100%;
  max-width: var(--container);
  margin: 24px auto 0;
  border-radius: 14px;
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--grad-hero);
  color: #fff;
}
/* 主光晕 / 浮动光球：纯图片模式下隐藏，避免在小尺寸 banner 内溢出 */
.banner::after,
.banner-orb,
.banner-orb-2,
.banner-orb-3 { display: none; }

.banner-bg,
.banner > .banner-track {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: flex;
  transition: transform .6s cubic-bezier(.22,.61,.36,1);
}
.banner-bg .banner-track,
.banner > .banner-track { height: 100%; }
.banner-bg .banner-slide,
.banner-bg .banner-track .banner-slide,
.banner > .banner-track .banner-slide { min-width: 100%; height: 100%; }
.banner-bg img {
  width: 100%; height: 100%; object-fit: contain;
  opacity: .95;
}
.banner-scrim {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(180deg, rgba(0,0,0,.02) 0%, rgba(0,0,0,.1) 100%);
}

.hero-content {
  position: relative; z-index: 2;
  width: 100%; text-align: center;
  padding: 72px 0;
}
.hero-title {
  color: #fff;
  font-size: clamp(32px, 5.5vw, 58px);
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1.12;
  margin: 0 0 22px;
  background: linear-gradient(105deg, #fff 30%, rgba(167,139,250,.95) 65%, rgba(103,232,249,.9) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 4px 20px rgba(0,0,0,.2));
}
.hero-sub {
  color: rgba(255,255,255,.85);
  font-size: clamp(15px, 1.8vw, 19px);
  max-width: 720px;
  margin: 0 auto 36px;
  line-height: 1.75;
  font-weight: 400;
}
.hero-actions {
  display: flex; gap: 16px; justify-content: center; flex-wrap: wrap;
}
/* banner 区域禁止显示文字（标题/副标题/按钮全部隐藏） */
.hero-content { display: none !important; }

/* ── 按钮系统 ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 14px 34px;
  border-radius: 99px;
  font-size: 15px; font-weight: 600;
  cursor: pointer;
  border: 1.5px solid transparent;
  position: relative;
  overflow: hidden;
  transition: transform .2s ease, box-shadow .3s ease, background .3s ease, color .3s ease, border-color .3s ease;
  letter-spacing: -.01em;
}
.btn::before {
  content: "";
  position: absolute; top: 0; left: -120%;
  width: 60%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.35), transparent);
  transform: skewX(-20deg);
  transition: left .5s ease;
}
.btn:hover::before { left: 140%; }
.btn-primary {
  background: var(--grad-accent);
  color: #041016;
  box-shadow: 0 8px 24px -6px rgba(34,211,238,.5), 0 4px 12px -4px rgba(34,211,238,.3);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 36px -8px rgba(34,211,238,.55), 0 8px 20px -6px rgba(34,211,238,.35), var(--shadow-glow-cyan);
  color: #041016;
}
.btn-ghost {
  background: rgba(255,255,255,.1);
  color: #fff;
  border-color: rgba(255,255,255,.35);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover {
  background: rgba(255,255,255,.2);
  transform: translateY(-3px);
  border-color: rgba(255,255,255,.7);
  color: #fff;
}

.banner-dots {
  position: absolute; left: 0; right: 0; bottom: 24px; z-index: 3;
  display: flex; justify-content: center; gap: 10px;
}
.banner-dots .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: rgba(255,255,255,.4);
  cursor: pointer;
  transition: all .3s ease;
}
.banner-dots .dot.active {
  width: 28px; border-radius: 99px;
  background: #fff;
  box-shadow: 0 0 12px rgba(255,255,255,.6);
}

/* 左右箭头 */
.banner-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  z-index: 3;
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid rgba(255,255,255,.35);
  border-radius: 50%;
  background: rgba(10,12,30,.28);
  backdrop-filter: blur(8px);
  color: #fff;
  cursor: pointer;
  opacity: 0;
  transition: opacity .35s ease, background .3s ease, transform .2s ease;
}
.banner-arrow svg { width: 20px; height: 20px; }
.banner-arrow:hover {
  background: rgba(10,12,30,.55);
  border-color: rgba(255,255,255,.7);
}
.banner-arrow:active { transform: translateY(-50%) scale(.92); }
.banner-prev { left: 16px; }
.banner-next { right: 16px; }
.banner:hover .banner-arrow { opacity: 1; }

@media (max-width: 768px) {
  /* 手机屏窄：banner 随容器自动满宽，保持 16:9 比例，间距收紧 */
  .banner { margin: 14px auto 0; border-radius: 10px; }
  .hero-content { padding: 52px 0; }
  /* 移动端隐藏箭头（无 hover，避免遮挡），保留自动滑动 + 圆点 */
  .banner-arrow { display: none; }
}

/* ============================ 卡片网格 ============================ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.card {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: transform .35s cubic-bezier(.22,.61,.36,1), box-shadow .35s ease, border-color .35s ease;
  display: flex;
  flex-direction: column;
}
/* 渐变边框光效（悬浮时显示） */
.card::before {
  content: "";
  position: absolute; inset: 0;
  border-radius: var(--radius);
  padding: 1.5px;
  background: var(--grad-border);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity .35s ease;
  pointer-events: none;
  z-index: 2;
}
.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  border-color: transparent;
}
.card:hover::before { opacity: 1; }

.card-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
}
.card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: var(--c-surface-2);
  transition: transform .6s cubic-bezier(.22,.61,.36,1);
}
.card:hover .card-img { transform: scale(1.08); }
/* 图片渐变遮罩 */
.card-img-wrap::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(99,102,241,.15) 100%);
  opacity: 0;
  transition: opacity .35s ease;
}
.card:hover .card-img-wrap::after { opacity: 1; }

.card-body {
  padding: 20px 20px 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.card-title {
  font-size: 16px;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--c-text);
  transition: color .2s ease;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card:hover .card-title {
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.card-desc {
  color: var(--c-text-light);
  font-size: 13.5px;
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 卡片右上角装饰角标 */
.card-corner {
  position: absolute; top: 14px; right: 14px;
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--grad-accent);
  display: grid; place-items: center;
  color: #fff;
  opacity: 0;
  transform: scale(.5) rotate(-30deg);
  transition: opacity .3s ease, transform .3s cubic-bezier(.22,.61,.36,1);
  z-index: 3;
  box-shadow: 0 4px 14px rgba(34,211,238,.4);
}
.card:hover .card-corner {
  opacity: 1;
  transform: scale(1) rotate(0deg);
}

/* ============================ 新闻列表 ============================ */
.news-list {
  display: grid; gap: 0;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.news-item {
  border-bottom: 1px solid var(--c-line-soft);
  transition: background .2s ease;
  position: relative;
}
.news-item:last-child { border-bottom: 0; }
.news-item::before {
  content: "";
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--grad-primary);
  transform: scaleY(0);
  transition: transform .25s ease;
  transform-origin: center;
}
.news-item:hover { background: var(--c-surface-2); }
.news-item:hover::before { transform: scaleY(1); }
.news-item a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 26px;
  gap: 24px;
}
.news-title {
  font-size: 15px;
  flex: 1;
  font-weight: 500;
  color: var(--c-text);
  transition: color .2s ease;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.news-item:hover .news-title { color: var(--c-primary); }
.news-date {
  color: var(--c-muted);
  font-size: 13px;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
  padding: 4px 12px;
  background: var(--c-surface-2);
  border-radius: 99px;
}

/* ============================ 资源（PDF / 视频） ============================ */
.res-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.res-card {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: all .3s cubic-bezier(.22,.61,.36,1);
}
.res-card:hover {
  border-color: transparent;
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}
.res-cover {
  height: 165px; object-fit: cover;
  background: var(--c-surface-2);
  transition: transform .6s cubic-bezier(.22,.61,.36,1);
}
.res-card:hover .res-cover { transform: scale(1.06); }
.res-name {
  padding: 16px;
  font-size: 14px;
  text-align: center;
  font-weight: 600;
  color: var(--c-text);
}
.res-tag {
  display: inline-block;
  font-size: 11px; color: #fff;
  background: var(--grad-accent);
  border-radius: 99px;
  padding: 3px 10px;
  margin-left: 6px;
  font-weight: 600;
}

/* 视频内联播放器（替代原下载链接） */
.video-wrap { aspect-ratio: 16 / 9; }
.video-wrap::after { display: none; }
.card-video, .res-video {
  width: 100%;
  height: 100%;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: #000;
  display: block;
}
.res-cover.video-wrap { height: auto; }

/* ============================ 关于我们 ============================ */
.about-wrap {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 64px;
  align-items: center;
}
.about-text h2 { margin-bottom: 20px; }
.about-text p {
  margin: 0 0 16px;
  color: var(--c-text-light);
  font-size: 15px;
  line-height: 1.85;
}
.about-text > div[data-html="1"] { color: var(--c-text-light); }
.about-text > div[data-html="1"] p { margin: 0 0 16px; }

.brand-imgs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.brand-imgs img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background: var(--c-surface-2);
  transition: transform .35s ease, box-shadow .35s ease;
  box-shadow: var(--shadow-sm);
}
.brand-imgs img:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: var(--shadow);
}

.tag-cloud {
  display: flex; flex-wrap: wrap;
  gap: 10px; margin-top: 22px;
}
.tag-cloud .tag {
  background: var(--c-surface);
  color: var(--c-text-light);
  border: 1px solid var(--c-line);
  border-radius: 99px;
  padding: 7px 18px;
  font-size: 13px;
  font-weight: 500;
  transition: all .25s ease;
  cursor: default;
}
.tag-cloud .tag:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
  background: rgba(99,102,241,.06);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px -4px rgba(99,102,241,.25);
}

/* ============================ 详情页 ============================ */
.details { padding: 60px 0 90px; }
.details-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 36px;
  align-items: start;
}
.details-main {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 44px;
  box-shadow: var(--shadow-sm);
}
.details-title {
  font-size: 28px;
  margin-bottom: 24px;
  letter-spacing: -.02em;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.details-content {
  font-size: 15px;
  color: var(--c-text-light);
  line-height: 1.95;
}
.details-content img {
  max-width: 100%; height: auto;
  margin: 22px 0;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}
.details-content p { margin: 0 0 18px; }
.details-content h2, .details-content h3 {
  color: var(--c-text);
  margin: 28px 0 14px;
}

.pager-nav {
  display: flex; justify-content: space-between;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--c-line);
}
.pager-nav a {
  color: var(--c-primary);
  font-size: 14px;
  font-weight: 500;
  transition: all .2s ease;
}
.pager-nav a:hover {
  color: var(--c-accent);
  transform: translateX(2px);
}

.side-module {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 22px;
  box-shadow: var(--shadow-sm);
}
.side-module h3 {
  font-size: 16px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.side-module h3::before {
  content: "";
  width: 4px; height: 16px;
  background: var(--grad-primary);
  border-radius: 99px;
}
.side-module .rec-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--c-line-soft);
}
.side-module .rec-list li:last-child { border-bottom: 0; }
.side-module .rec-list a {
  color: var(--c-text-light);
  font-size: 14px;
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  transition: color .2s ease;
}
.side-module .rec-list a:hover { color: var(--c-primary); }

/* ============================ 面包屑 ============================ */
.crumbs {
  padding: 20px 0;
  color: var(--c-muted);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.crumbs a {
  color: var(--c-text-light);
  transition: color .2s ease;
}
.crumbs a:hover { color: var(--c-primary); }

/* ============================ 分页 ============================ */
.pagination {
  display: flex; flex-wrap: wrap;
  justify-content: center; gap: 8px;
  margin: 48px 0 12px;
}
.pagination .page-link,
.pagination .page-ellipsis {
  min-width: 42px; height: 42px;
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0 16px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-xs);
  background: var(--c-surface);
  color: var(--c-text);
  font-size: 14px;
  font-weight: 500;
  transition: all .2s ease;
}
.pagination .page-link:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
  background: rgba(99,102,241,.05);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px -4px rgba(99,102,241,.25);
}
.pagination .page-current {
  min-width: 42px; height: 42px;
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0 16px;
  border-radius: var(--radius-xs);
  background: var(--grad-primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  box-shadow: 0 4px 14px -4px rgba(99,102,241,.45);
}
.pagination .page-disabled {
  color: var(--c-muted);
  border-style: dashed;
  pointer-events: none;
  opacity: .6;
}

/* ============================ 分类 Tab ============================ */
.cat-tabs {
  display: flex; flex-wrap: wrap;
  gap: 10px; margin-bottom: 34px;
}
.cat-tabs .cat {
  padding: 9px 20px;
  border: 1px solid var(--c-line);
  border-radius: 99px;
  background: var(--c-surface);
  font-size: 14px;
  color: var(--c-text-light);
  cursor: pointer;
  font-weight: 500;
  transition: all .25s ease;
}
.cat-tabs .cat:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
}
.cat-tabs .cat.active {
  border-color: transparent;
  color: #fff;
  background: var(--grad-primary);
  box-shadow: 0 4px 14px -4px rgba(99,102,241,.45);
}

/* ============================ 联系我们 ============================ */
.panel-box {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}
.panel-head { margin-bottom: 28px; }
.panel-head h1 {
  margin: 0 0 8px;
  font-size: 24px;
  letter-spacing: -.02em;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.panel-head .panel-sub {
  margin: 0;
  color: var(--c-text-light);
  font-size: 14.5px;
  line-height: 1.7;
}

/* 横向子导航 */
.contact-tabs {
  display: flex; flex-wrap: wrap; gap: 4px;
  border-bottom: 1px solid var(--c-line);
  margin-bottom: 32px;
}
.contact-tabs > a {
  display: inline-flex; align-items: center;
  padding: 14px 22px;
  font-size: 15px; font-weight: 500;
  color: var(--c-text-light);
  border-bottom: 2.5px solid transparent;
  margin-bottom: -1px;
  transition: all .2s ease;
}
.contact-tabs > a:hover { color: var(--c-text); }
.contact-tabs > a.active,
.contact-tabs > a[href="/contact/"] {
  color: var(--c-primary);
  border-bottom-color: var(--c-primary);
  font-weight: 600;
}

.contact-info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.info-card {
  display: flex; align-items: center; gap: 16px;
  padding: 22px;
  background: var(--c-surface-2);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  transition: all .25s ease;
}
.info-card:hover {
  border-color: var(--c-primary);
  background: var(--c-surface);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.info-ic {
  flex: 0 0 46px; width: 46px; height: 46px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: var(--grad-primary);
  color: #fff;
  box-shadow: 0 4px 14px -4px rgba(99,102,241,.4);
}
.info-ic svg { width: 22px; height: 22px; fill: currentColor; }
.info-text { min-width: 0; flex: 1; }
.info-label {
  font-size: 12.5px;
  color: var(--c-muted);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.info-value {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text);
  word-break: break-all;
  line-height: 1.4;
}
.info-item {
  padding: 10px 0;
  border-bottom: 1px solid var(--c-line-soft);
  font-size: 15px;
}
.info-item:last-child { border-bottom: 0; }

/* 服务支持 */
.service-hours {
  margin-top: 32px;
  padding-top: 28px;
  border-top: 1px solid var(--c-line);
}
.service-hours h3 {
  font-size: 18px;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.service-hours h3::before {
  content: "";
  width: 4px; height: 18px;
  background: var(--grad-accent);
  border-radius: 99px;
}
.hours-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.hours-item {
  padding: 18px 20px;
  background: var(--c-surface-2);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  transition: all .25s ease;
}
.hours-item:hover {
  border-color: var(--c-accent);
  background: var(--c-surface);
}
.hours-label {
  font-size: 12.5px;
  color: var(--c-muted);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.hours-value {
  font-size: 14.5px;
  color: var(--c-text);
  line-height: 1.65;
  font-weight: 500;
}

/* 留言表单 */
.message-form .form-group { margin-bottom: 20px; }
.message-form label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--c-text);
  font-size: 14px;
}
.message-form input,
.message-form textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--c-line);
  border-radius: var(--radius-xs);
  font-size: 14.5px;
  font-family: inherit;
  transition: all .2s ease;
  background: var(--c-surface);
  color: var(--c-text);
}
.message-form input::placeholder,
.message-form textarea::placeholder { color: var(--c-muted); }
.message-form input:focus,
.message-form textarea:focus {
  outline: none;
  border-color: var(--c-primary);
  box-shadow: 0 0 0 4px rgba(99,102,241,.1);
}
.message-form textarea {
  min-height: 130px;
  resize: vertical;
  line-height: 1.6;
}
.submit-btn {
  background: var(--grad-primary);
  color: #fff;
  border: 0;
  padding: 13px 36px;
  border-radius: 99px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all .25s ease;
  box-shadow: 0 4px 14px -4px rgba(99,102,241,.45);
}
.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px -6px rgba(99,102,241,.55), var(--shadow-glow);
}
.submit-btn:disabled {
  opacity: .6;
  cursor: not-allowed;
  transform: none;
}
.form-tips {
  margin-top: 14px;
  font-size: 14px;
  min-height: 22px;
  font-weight: 500;
}
.form-tips.ok { color: var(--c-success); }
.form-tips.err { color: var(--c-danger); }

/* ============================ 网站地图 ============================ */
.sitemap {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}
.sitemap h2 {
  font-size: 18px;
  margin: 22px 0 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.sitemap h2:first-child { margin-top: 0; }
.sitemap h2::before {
  content: "";
  width: 4px; height: 16px;
  background: var(--grad-primary);
  border-radius: 99px;
}
.sitemap .sitemap-list {
  display: flex; flex-wrap: wrap; gap: 10px;
}
.sitemap .sitemap-list a {
  color: var(--c-text-light);
  font-size: 14px;
  padding: 7px 16px;
  background: var(--c-surface-2);
  border: 1px solid var(--c-line);
  border-radius: 99px;
  transition: all .2s ease;
}
.sitemap .sitemap-list a:hover {
  color: var(--c-primary);
  border-color: var(--c-primary);
  background: rgba(99,102,241,.05);
}

/* ============================ FAQ ============================ */
.faq-section { background: var(--c-bg) !important; }
.faq-list {
  display: grid;
  gap: 14px;
  margin-top: 8px;
  max-width: 860px;
}
.faq-item {
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: all .3s ease;
}
.faq-item:hover {
  border-color: var(--c-line);
  box-shadow: var(--shadow-sm);
}
.faq-item[open] {
  border-color: var(--c-primary);
  box-shadow: 0 0 0 1px rgba(99,102,241,.2), var(--shadow-sm);
}
.faq-q {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 24px;
  margin: 0;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--c-text);
  user-select: none;
  transition: color .2s ease;
}
.faq-q::-webkit-details-marker { display: none; }
.faq-item[open] .faq-q { color: var(--c-primary); }
.faq-no {
  flex: none;
  width: 28px; height: 28px;
  border-radius: 8px;
  background: var(--grad-primary);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  display: grid; place-items: center;
  box-shadow: 0 3px 10px -3px rgba(99,102,241,.45);
}
.faq-ic {
  margin-left: auto;
  width: 10px; height: 10px;
  border-right: 2px solid var(--c-muted);
  border-bottom: 2px solid var(--c-muted);
  transform: rotate(45deg);
  transition: transform .3s ease, border-color .3s ease;
}
.faq-item[open] .faq-ic {
  transform: rotate(-135deg);
  border-color: var(--c-primary);
}
.faq-a {
  margin: 0;
  padding: 0 24px 22px 66px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--c-text-light);
  animation: faqFadeIn .3s ease;
}
@keyframes faqFadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}
@media (max-width: 768px) {
  .faq-q { padding: 16px 18px; font-size: 14.5px; }
  .faq-a { padding: 0 18px 18px 60px; }
}

/* ============================ 页脚 ============================ */
.site-footer {
  position: relative;
  background: var(--c-surface);
  color: var(--c-text-light);
  margin-top: 100px;
  border-top: 1px solid var(--c-line);
  overflow: hidden;
}
/* 顶部渐变装饰线 */
.site-footer::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--c-primary), var(--c-accent), var(--c-primary-2), transparent);
  background-size: 200% 100%;
  animation: footerGlow 8s ease-in-out infinite alternate;
}
@keyframes footerGlow {
  from { background-position: 0% 50%; }
  to   { background-position: 100% 50%; }
}
/* 底部光晕装饰 */
.site-footer::after {
  content: "";
  position: absolute;
  bottom: -200px; left: 50%;
  transform: translateX(-50%);
  width: 800px; height: 400px;
  background: radial-gradient(ellipse, rgba(99,102,241,.08), transparent 70%);
  pointer-events: none;
}
html[data-theme="dark"] .site-footer::after {
  background: radial-gradient(ellipse, rgba(99,102,241,.12), transparent 70%);
}
.site-footer .container {
  position: relative;
  padding-top: 64px;
  padding-bottom: 30px;
  z-index: 1;
}

.footer-cols {
  display: grid;
  grid-template-columns: 1.2fr 1.2fr 0.9fr;
  gap: 56px;
  align-items: start;
  margin-bottom: 52px;
}
.footer-col h4 {
  color: var(--c-text);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: .02em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-col h4::before {
  content: "";
  width: 3px; height: 14px;
  background: var(--grad-primary);
  border-radius: 99px;
}
.footer-col .f-logo {
  font-size: 20px;
  font-weight: 700;
  color: var(--c-text);
  letter-spacing: -.01em;
  margin-bottom: 16px;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.footer-col > p {
  margin: 10px 0;
  line-height: 1.75;
  color: var(--c-text-light);
  font-size: 14px;
}

.site-footer .tel-link {
  display: inline-flex;
  background: var(--c-surface-2);
  border: 1px solid var(--c-line);
  color: var(--c-text);
  font-weight: 600;
  padding: 8px 16px;
  margin-top: 10px;
  box-shadow: none;
  transition: all .2s ease;
}
.site-footer .tel-link:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
  box-shadow: 0 0 0 4px rgba(99,102,241,.08);
}
.site-footer .tel-link svg { color: var(--c-primary); }

/* 快速导航：双列网格 */
.site-footer .nav-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 28px;
  align-items: start;
  justify-items: start;
}
.site-footer .nav-item { padding: 0; border: none; }
.site-footer .nav-item > a {
  color: var(--c-text-light);
  font-weight: 400;
  font-size: 14px;
  line-height: 1.4;
  padding: 0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color .2s ease;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
}
.site-footer .nav-item > a::before {
  content: "";
  flex: 0 0 auto;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--c-line);
  transition: all .2s ease;
}
.site-footer .nav-item > a::after { display: none; }
.site-footer .nav-item > a:hover,
.site-footer .nav-item.active > a { color: var(--c-primary); }
.site-footer .nav-item > a:hover::before {
  background: var(--c-primary);
  box-shadow: 0 0 8px rgba(99,102,241,.5);
}

.friend-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}
.friend-links a:empty { display: none; }
.friend-links a {
  color: var(--c-text-light);
  font-size: 13px;
  padding: 6px 14px;
  border: 1px solid var(--c-line);
  border-radius: 99px;
  background: var(--c-surface-2);
  transition: all .2s ease;
  margin: 0;
}
.friend-links a:hover {
  color: var(--c-primary);
  border-color: var(--c-primary);
  background: var(--c-surface);
}

.footer-col > a[href="/map/"] {
  color: var(--c-text-light);
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color .2s ease;
}
.footer-col > a[href="/map/"]::before {
  content: "→";
  color: var(--c-primary);
  font-size: 12px;
}
.footer-col > a[href="/map/"]:hover { color: var(--c-primary); }

.copyright {
  border-top: 1px solid var(--c-line);
  padding-top: 24px;
  color: var(--c-muted);
  font-size: 13px;
  text-align: center;
  line-height: 1.9;
}
.copyright a {
  color: var(--c-muted);
  transition: color .2s ease;
}
.copyright a:hover { color: var(--c-primary); }

/* ============================ 主题切换 & 语言切换 ============================ */
.theme-toggle {
  display: inline-grid; place-items: center;
  width: 40px; height: 40px; padding: 0;
  border: 1px solid var(--c-line);
  border-radius: 99px;
  background: var(--c-surface);
  color: var(--c-text);
  cursor: pointer;
  transition: all .25s ease;
}
.theme-toggle:hover {
  border-color: var(--c-primary);
  color: var(--c-primary);
  transform: rotate(15deg);
}
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .ic-moon { display: none; }
html[data-theme="dark"] .theme-toggle .ic-sun { display: none; }
html[data-theme="dark"] .theme-toggle .ic-moon { display: inline; }
/* 主题切换按钮暂时隐藏（默认跟随系统） */
.theme-toggle { display: none !important; }

/* 语言切换器已移除：本模板为纯英文版，不再提供中/英切换 UI */

/* 颜色过渡 */
body, .site-header, .panel-box, .details-main, .side-module, .sitemap,
.info-card, .hours-item, .card, .news-list, .faq-item, .res-card {
  transition: background-color .4s ease, color .4s ease, border-color .4s ease;
}

/* ============================ 滚动入场动画 ============================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1);
  will-change: opacity, transform;
}
.reveal.is-visible { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .1s; }
.reveal.d2 { transition-delay: .2s; }
.reveal.d3 { transition-delay: .3s; }
.reveal-fade {
  opacity: 0;
  transition: opacity .6s ease;
}
.reveal-fade.is-visible { opacity: 1; }
@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal-fade { opacity: 1 !important; transform: none !important; transition: none !important; }
  .reveal.d1, .reveal.d2, .reveal.d3 { transition-delay: 0s !important; }
  .banner::after, .banner-orb { animation: none !important; }
}

/* ============================ 响应式 ============================ */
@media (max-width: 1024px) {
  .card-grid, .res-grid { grid-template-columns: repeat(3, 1fr); }
  .about-wrap { grid-template-columns: 1fr; gap: 36px; }
  .details-layout { grid-template-columns: 1fr; }
  .footer-cols { grid-template-columns: 1fr 1fr; gap: 40px; }
  .footer-cols .footer-col:first-child { grid-column: 1 / -1; }
  .site-footer .nav-list { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px 24px; }
}

@media (max-width: 768px) {
  .section { padding: 60px 0; }
  .main-nav, .header-tools .tel-link { display: none; }
  .mobile-toggle { display: inline-flex; }
  .card-grid, .res-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .footer-cols { grid-template-columns: 1fr; gap: 30px; }
  .section-title { font-size: 24px; }
  .details-main, .panel-box, .sitemap { padding: 26px; }
  .contact-info-grid { grid-template-columns: 1fr; }
  .hours-grid { grid-template-columns: 1fr; }
  .container { padding: 0 20px; }
  .hero-title { font-size: clamp(28px, 7vw, 40px); }
  .btn { padding: 12px 28px; font-size: 14px; }
}

@media (max-width: 480px) {
  .card-grid, .res-grid { grid-template-columns: 1fr; }
  .container { padding: 0 16px; }
  .brand-imgs { grid-template-columns: repeat(2, 1fr); }
  .section-head { flex-direction: column; align-items: flex-start; gap: 12px; }
}

/* ============================================================
   站点文案扩展元素（AI官网配置页可管理；未配置时由 DataBlockFiller 保留默认）
   ============================================================ */

/* 首页数据统计 */
.stats-section { padding: 40px 0; margin-top: 28px; }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 28px 24px;
}
.stat-item { text-align: center; position: relative; opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.stats-section.is-visible .stat-item { opacity: 1; transform: translateY(0); }
.stats-section.is-visible .stat-item:nth-child(1) { transition-delay: 0ms; }
.stats-section.is-visible .stat-item:nth-child(2) { transition-delay: 120ms; }
.stats-section.is-visible .stat-item:nth-child(3) { transition-delay: 240ms; }
.stat-item + .stat-item::before {
  content: ""; position: absolute; left: -10px; top: 12%; height: 76%;
  width: 1px; background: var(--c-line);
}
.stat-num {
  font-size: clamp(28px, 4vw, 40px); font-weight: 800; line-height: 1.1;
  background: var(--grad-text); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; letter-spacing: .5px;
}
.stat-label { margin-top: 6px; font-size: 14px; color: var(--c-text-light); }
/* 未配置统计时（数字与标签均为空）隐藏该格子，避免空框 */
.stat-item:has(.stat-num:empty):has(.stat-label:empty) { display: none; }

/* 关于我们 slogan */
.about-slogan { margin: 4px 0 14px; font-size: 16px; font-weight: 600; color: var(--c-primary-deep); }

/* 各模块副标题（描述句） */
.section-desc {
  margin: 8px 0 22px; max-width: 720px;
  font-size: 15px; line-height: 1.7; color: var(--c-text-light);
}

/* 页脚标语 */
.footer-tagline { margin: 6px 0 14px; font-size: 13px; color: var(--c-muted); line-height: 1.6; }

@media (max-width: 768px) {
  .stats-grid { grid-template-columns: 1fr; gap: 16px; }
  .stat-item + .stat-item::before { display: none; }
  .stat-item + .stat-item { border-top: 1px solid var(--c-line); padding-top: 16px; }
}