/* ==========================================================================
   壹刻校园 YIKE CAMPUS · 官网设计系统 v2.0
   风格：红白精致版 —— 品牌红 × 高级灰 × 大留白 × 精细排版
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root {
  /* 品牌红 */
  --red:        #C8102E;
  --red-deep:   #96071F;
  --red-bright: #E4203E;
  --red-soft:   #FDF2F4;
  --red-tint:   #F8DDE2;

  /* 中性色阶 */
  --ink-900: #0E1014;
  --ink-800: #1A1D24;
  --ink-700: #2C313B;
  --ink-600: #434A57;
  --ink-500: #626A78;
  --ink-400: #8A93A2;
  --ink-300: #B4BBC6;
  --ink-200: #DDE1E8;
  --ink-100: #EDEFF3;
  --surface: #F7F8FA;
  --surface-2: #FBFBFD;

  /* 语义 */
  --bg: #FFFFFF;
  --bg-alt: var(--surface);
  --line: var(--ink-200);
  --line-soft: var(--ink-100);

  /* 圆角 */
  --r-xs: 8px;
  --r-sm: 12px;
  --r: 18px;
  --r-lg: 24px;
  --r-xl: 32px;
  --r-full: 999px;

  /* 阴影：多层柔和 */
  --sh-1: 0 1px 2px rgba(14,16,20,.04), 0 2px 8px rgba(14,16,20,.03);
  --sh-2: 0 2px 6px rgba(14,16,20,.05), 0 10px 24px rgba(14,16,20,.05);
  --sh-3: 0 4px 12px rgba(14,16,20,.06), 0 20px 48px rgba(14,16,20,.08);
  --sh-red: 0 6px 20px rgba(200,16,46,.24);
  --sh-red-lg: 0 12px 36px rgba(200,16,46,.28);

  /* 布局 */
  --maxw: 1220px;
  --gutter: 28px;
  --sec-y: clamp(56px, 6.5vw, 96px);

  /* 字体 */
  --font: "PingFang SC", "HarmonyOS Sans SC", -apple-system, BlinkMacSystemFont,
          "Microsoft YaHei", "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --font-num: "SF Pro Display", -apple-system, "Helvetica Neue", Arial, sans-serif;

  /* 动效 */
  --ease: cubic-bezier(.22,.61,.36,1);
  --ease-out: cubic-bezier(.16,1,.3,1);
}

/* ---------- 2. 基础重置 ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; overflow-x: clip; }
body {
  font-family: var(--font);
  color: var(--ink-800);
  background: var(--bg);
  font-size: 15.5px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* 关键：overflow-x:hidden 会让 body 成为滚动容器，从根上吃掉子元素的 position:sticky。
     clip 不创建滚动容器，横向裁切效果相同，因此用 hidden → clip 逐级覆盖。 */
  overflow-x: hidden;
  overflow-x: clip;
}
a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
button { cursor: pointer; border: none; background: none; color: inherit; }
::selection { background: var(--red-tint); color: var(--red-deep); }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }
.container-narrow { max-width: 900px; margin: 0 auto; padding: 0 var(--gutter); }

/* 数字统一等宽对齐 */
.num, .stat-num, .tl-year, .kpi-num { font-variant-numeric: tabular-nums; }

/* ---------- 3. 排版 ---------- */
.h-display {
  font-size: clamp(38px, 5.4vw, 66px);
  line-height: 1.1;
  letter-spacing: -.03em;
  font-weight: 800;
  color: var(--ink-900);
}
.h1 { font-size: clamp(30px, 3.8vw, 46px); line-height: 1.18; letter-spacing: -.022em; font-weight: 800; color: var(--ink-900); }
.h2 { font-size: clamp(26px, 2.9vw, 38px); line-height: 1.24; letter-spacing: -.02em; font-weight: 800; color: var(--ink-900); }
.h3 { font-size: clamp(19px, 1.5vw, 22px); line-height: 1.36; letter-spacing: -.012em; font-weight: 700; color: var(--ink-900); }
.h4 { font-size: 17px; line-height: 1.45; font-weight: 700; color: var(--ink-900); }
.lead { font-size: clamp(15.5px, 1.25vw, 18px); line-height: 1.78; color: var(--ink-500); }
.muted { color: var(--ink-500); }
.small { font-size: 13.5px; color: var(--ink-400); }

/* 小节眉标 */
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 12px; font-weight: 700; letter-spacing: .18em;
  text-transform: uppercase; color: var(--red);
}
.eyebrow::before {
  content: ""; width: 22px; height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, var(--red), var(--red-bright));
}
.eyebrow.on-dark { color: #FFC7D1; }
.eyebrow.on-dark::before { background: linear-gradient(90deg, #FFC7D1, rgba(255,199,209,.2)); }

/* ---------- 4. 区块骨架 ---------- */
.section { padding: var(--sec-y) 0; position: relative; }
.section.tight { padding: clamp(44px, 4.6vw, 68px) 0; }
.section.alt { background: var(--bg-alt); }
.section.ink { background: linear-gradient(160deg, #14161C 0%, #1E222B 100%); color: #fff; }

.sec-head { max-width: 720px; margin-bottom: clamp(36px, 4vw, 56px); }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.sec-head.center .eyebrow { justify-content: center; }
.sec-head .h2 { margin-top: 16px; }
.sec-head .lead { margin-top: 16px; }
.sec-head-row {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 32px; margin-bottom: clamp(36px, 4vw, 56px);
}
.sec-head-row .sec-head { margin-bottom: 0; }

/* ---------- 5. 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 28px; border-radius: var(--r-full);
  font-size: 15px; font-weight: 600; letter-spacing: .01em;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .2s, color .2s, border-color .2s;
  white-space: nowrap; border: 1.5px solid transparent;
}
.btn svg { width: 17px; height: 17px; flex: none; }
.btn-primary { background: var(--red); color: #fff; box-shadow: var(--sh-red); }
.btn-primary:hover { background: var(--red-deep); transform: translateY(-2px); box-shadow: var(--sh-red-lg); }
.btn-outline { border-color: var(--ink-200); color: var(--ink-800); background: #fff; }
.btn-outline:hover { border-color: var(--red); color: var(--red); transform: translateY(-2px); }
.btn-soft { background: var(--red-soft); color: var(--red); }
.btn-soft:hover { background: var(--red-tint); }
.btn-white { background: #fff; color: var(--red); box-shadow: 0 6px 20px rgba(0,0,0,.16); }
.btn-white:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(0,0,0,.22); }
.btn-ghost-w { border-color: rgba(255,255,255,.34); color: #fff; }
.btn-ghost-w:hover { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.6); }
.btn-sm { padding: 9px 20px; font-size: 13.5px; }
.btn-lg { padding: 16px 38px; font-size: 16px; }
.btn-block { width: 100%; }

/* 文字箭头链接 */
.link-arrow {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--red); font-weight: 600; font-size: 14.5px;
  transition: gap .25s var(--ease);
}
.link-arrow svg { width: 15px; height: 15px; transition: transform .25s var(--ease); }
.link-arrow:hover { gap: 11px; }
.link-arrow:hover svg { transform: translateX(2px); }

/* ---------- 6. 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 300;
  background: rgba(255,255,255,.82);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, box-shadow .3s, background .3s;
}
.site-header.scrolled { border-bottom-color: var(--line); box-shadow: 0 1px 20px rgba(14,16,20,.05); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 70px; gap: 20px; }
.logo { display: flex; align-items: center; gap: 11px; flex: none; }
.logo-mark {
  width: 38px; height: 38px; border-radius: 11px;
  background: linear-gradient(140deg, var(--red-bright), var(--red) 55%, var(--red-deep));
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-size: 17px; font-weight: 800; letter-spacing: -.02em;
  box-shadow: 0 4px 14px rgba(200,16,46,.32);
}
.logo-text { display: flex; flex-direction: column; line-height: 1.05; }
.logo-name { font-size: 18px; font-weight: 800; letter-spacing: -.02em; color: var(--ink-900); }
.logo-sub { font-size: 9.5px; font-weight: 600; letter-spacing: .22em; color: var(--ink-400); margin-top: 2px; }

.main-nav { display: flex; align-items: center; gap: 1px; }
.main-nav > a, .main-nav .nav-item > a {
  padding: 9px 13px; border-radius: 9px;
  font-size: 14.5px; font-weight: 500; color: var(--ink-600);
  transition: color .2s, background .2s; position: relative; display: block;
}
.main-nav > a:hover, .main-nav .nav-item > a:hover { color: var(--red); background: var(--red-soft); }
.main-nav > a.active, .main-nav .nav-item > a.active { color: var(--red); font-weight: 700; }
.main-nav > a.active::after {
  content: ""; position: absolute; left: 13px; right: 13px; bottom: 1px;
  height: 2px; border-radius: 2px; background: var(--red);
}
.nav-item { position: relative; }
.nav-dropdown {
  position: absolute; top: calc(100% + 8px); left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  box-shadow: var(--sh-3); padding: 8px; min-width: 240px;
  opacity: 0; visibility: hidden; transition: .24s var(--ease);
}
.nav-item:hover .nav-dropdown, .nav-item:focus-within .nav-dropdown {
  opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0);
}
.nav-dropdown a { display: block; padding: 10px 13px; border-radius: 10px; font-size: 14px; color: var(--ink-600); white-space: nowrap; transition: .18s; }
.nav-dropdown a:hover { background: var(--red-soft); color: var(--red); }
/* 二级菜单：父项指示箭头 + 子项双行（中文名 + 英文小字） */
.nav-item.has-sub > a { padding-right: 26px; }
.nav-item.has-sub > a::before {
  content: ""; position: absolute; right: 12px; top: 50%;
  width: 5px; height: 5px; margin-top: -4px;
  border-right: 1.6px solid currentColor; border-bottom: 1.6px solid currentColor;
  transform: rotate(45deg); opacity: .5; transition: transform .24s var(--ease), opacity .2s;
}
.nav-item.has-sub:hover > a::before { transform: rotate(225deg); margin-top: -1px; opacity: .9; }
.nav-item.has-sub > a.active::after {
  content: ""; position: absolute; left: 13px; right: 26px; bottom: 1px;
  height: 2px; border-radius: 2px; background: var(--red);
}
.nav-dropdown { padding: 8px; min-width: 216px; }
.nav-dropdown .sub-link { display: block; padding: 10px 14px; border-radius: 10px; transition: .18s; }
.nav-dropdown .sub-link b { display: block; font-size: 14px; font-weight: 600; color: var(--ink-700); transition: color .18s; }
.nav-dropdown .sub-link small { display: block; font-size: 10.5px; font-weight: 600; letter-spacing: .12em; color: var(--ink-300); margin-top: 3px; text-transform: uppercase; transition: color .18s; }
.nav-dropdown .sub-link:hover { background: var(--red-soft); }
.nav-dropdown .sub-link:hover b { color: var(--red); }
.nav-dropdown .sub-link:hover small { color: var(--red); opacity: .72; }
.nav-dropdown .sub-link.on { background: var(--red-soft); }
.nav-dropdown .sub-link.on b { color: var(--red); font-weight: 700; }
.nav-dropdown .sub-link.on small { color: var(--red); opacity: .72; }
/* 外链项：右上角 ↗ 角标，提示「会跳走 / 新窗口打开」 */
.nav-dropdown .sub-link.out { position: relative; padding-right: 32px; }
.nav-dropdown .sub-link.out::after {
  content: "↗"; position: absolute; right: 13px; top: 11px;
  font-size: 11px; line-height: 1; color: var(--ink-300); transition: color .18s;
}
.nav-dropdown .sub-link.out:hover::after, .nav-dropdown .sub-link.out.on::after { color: var(--red); }
/* 英文态：主名已是英文，隐藏重复的英文小字，避免「Team Overview / Team Overview」 */
html[lang="en"] .nav-dropdown .sub-link small { display: none; }
/* 后台配置的产品下拉没有中文主名 → 英文副名要保留，否则英文态下只剩中文名 */
html[lang="en"] .nav-dropdown .sub-link.plain small { display: block; }
/* 后台可配名称长度不可控：超长时单行省略，避免下拉被撑破 */
.nav-dropdown { max-width: 320px; }
.nav-dropdown .sub-link b, .nav-dropdown .sub-link small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.header-actions { display: flex; align-items: center; gap: 12px; flex: none; }
.lang-switch { display: flex; gap: 2px; background: var(--ink-100); border-radius: var(--r-full); padding: 3px; }
.lang-switch button { padding: 4px 10px; border-radius: var(--r-full); font-size: 12px; font-weight: 700; color: var(--ink-400); transition: .2s; }
.lang-switch button.on { background: #fff; color: var(--red); box-shadow: var(--sh-1); }
.menu-toggle { display: none; width: 42px; height: 42px; border-radius: 11px; align-items: center; justify-content: center; color: var(--ink-700); }
.menu-toggle:hover { background: var(--ink-100); }
.menu-toggle svg { width: 22px; height: 22px; }

/* ---------- 7. Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(140deg, #8E0620 0%, var(--red) 42%, #E11D3C 100%);
  color: #fff;
  isolation: isolate;
}
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(ellipse 55% 70% at 88% 12%, rgba(255,255,255,.20), transparent 62%),
    radial-gradient(ellipse 45% 55% at 6% 96%, rgba(255,255,255,.13), transparent 62%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: .5;
  background-image:
    linear-gradient(rgba(255,255,255,.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.055) 1px, transparent 1px);
  background-size: 62px 62px;
  -webkit-mask-image: radial-gradient(ellipse 80% 90% at 30% 40%, #000, transparent 78%);
  mask-image: radial-gradient(ellipse 80% 90% at 30% 40%, #000, transparent 78%);
}
.hero-inner { position: relative; padding: clamp(72px, 9vw, 132px) 0 clamp(56px, 6vw, 84px); max-width: 820px; }
.hero .badge {
  display: inline-flex; align-items: center; gap: 9px;
  background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.26);
  border-radius: var(--r-full); padding: 7px 17px 7px 13px;
  font-size: 12.5px; font-weight: 500; letter-spacing: .04em; margin-bottom: 26px;
  backdrop-filter: blur(6px);
}
.hero .badge .dot { width: 6px; height: 6px; border-radius: 50%; background: #7CF5B5; box-shadow: 0 0 0 3px rgba(124,245,181,.24); }
.hero h1 { font-size: clamp(38px, 5.6vw, 70px); line-height: 1.08; letter-spacing: -.033em; font-weight: 800; }
.hero h1 em { font-style: normal; color: #FFD3DB; }
.hero .sub { margin-top: 24px; font-size: clamp(15.5px, 1.3vw, 18.5px); line-height: 1.78; color: rgba(255,255,255,.9); max-width: 620px; }
.hero-cta { margin-top: 40px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats {
  position: relative; display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: rgba(255,255,255,.18);
  border: 1px solid rgba(255,255,255,.2); border-radius: var(--r);
  overflow: hidden; margin-bottom: clamp(48px, 5vw, 72px);
}
.hero-stat { background: rgba(255,255,255,.07); padding: 24px 26px; backdrop-filter: blur(8px); }
.hero-stat b { display: block; font-family: var(--font-num); font-size: clamp(26px, 2.8vw, 36px); font-weight: 800; letter-spacing: -.03em; line-height: 1.1; }
.hero-stat span { display: block; margin-top: 6px; font-size: 13px; color: rgba(255,255,255,.78); letter-spacing: .02em; }

/* ---------- 8. 卡片 ---------- */
.grid { display: grid; gap: 20px; }
.g-2 { grid-template-columns: repeat(2, 1fr); }
.g-3 { grid-template-columns: repeat(3, 1fr); }
.g-4 { grid-template-columns: repeat(4, 1fr); }
.g-auto { grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); }
.span-2 { grid-column: span 2; }
.span-3 { grid-column: span 3; }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 30px; transition: transform .32s var(--ease), box-shadow .32s var(--ease), border-color .32s;
  position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--sh-3); border-color: transparent; }
.card-flat { background: var(--surface-2); border-color: var(--line-soft); }
.card-flat:hover { background: #fff; }
.card-ink { background: linear-gradient(150deg, #1A1D24, #262B35); border-color: transparent; color: #fff; }
.card-ink .h3, .card-ink .h4 { color: #fff; }
.card-ink p, .card-ink .muted { color: rgba(255,255,255,.7); }
.card-red { background: linear-gradient(145deg, var(--red) 0%, #B00C26 100%); border-color: transparent; color: #fff; box-shadow: var(--sh-red); }
.card-red .h3, .card-red .h4 { color: #fff; }
.card-red p { color: rgba(255,255,255,.86); }
.card-cover { padding: 0; overflow: hidden; }
.card-cover .cover {
  height: 168px; display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
.card-cover .cover img { width: 100%; height: 100%; object-fit: cover; }
.card-cover .body { padding: 24px 26px 28px; }

/* 图标容器 */
.ico {
  width: 52px; height: 52px; border-radius: 15px;
  display: flex; align-items: center; justify-content: center;
  background: var(--red-soft); color: var(--red); margin-bottom: 20px;
  transition: transform .32s var(--ease), background .3s;
}
.ico svg { width: 25px; height: 25px; }
.card:hover .ico { transform: scale(1.06) rotate(-3deg); }
.card-red .ico, .card-ink .ico { background: rgba(255,255,255,.16); color: #fff; }
.ico-sm { width: 42px; height: 42px; border-radius: 12px; margin-bottom: 0; }
.ico-sm svg { width: 20px; height: 20px; }
.ico-line { background: transparent; border: 1.5px solid var(--line); color: var(--ink-600); }

/* 标签 */
.tag {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 11px; border-radius: var(--r-full);
  font-size: 12px; font-weight: 600; letter-spacing: .01em;
  background: var(--red-soft); color: var(--red);
}
.tag-gray { background: var(--ink-100); color: var(--ink-500); }
.tag-line { background: transparent; border: 1px solid var(--line); color: var(--ink-500); font-weight: 500; }
.tag-white { background: rgba(255,255,255,.18); color: #fff; }
.tag-row { display: flex; gap: 7px; flex-wrap: wrap; }

/* ---------- 9. 数据看板 ---------- */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; }
.kpi { background: #fff; padding: 32px 28px; }
.kpi-num { font-family: var(--font-num); font-size: clamp(30px, 3.2vw, 44px); font-weight: 800; letter-spacing: -.035em; line-height: 1; color: var(--red); }
.kpi-label { margin-top: 10px; font-size: 14px; color: var(--ink-500); }
.kpi-sub { margin-top: 4px; font-size: 12.5px; color: var(--ink-400); }

/* ---------- 10. 页头 / 面包屑 ---------- */
.page-hero {
  position: relative; overflow: hidden; color: #fff;
  background: linear-gradient(135deg, #8E0620 0%, #B00C26 52%, #D4152F 100%);
  background-size: cover; background-position: center;
  padding: clamp(56px, 6.5vw, 92px) 0 clamp(48px, 5vw, 68px);
}
.page-hero::after {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(circle at 84% 20%, rgba(255,255,255,.18), transparent 46%),
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: auto, 58px 58px, 58px 58px;
  -webkit-mask-image: linear-gradient(180deg, #000 40%, transparent);
  mask-image: linear-gradient(180deg, #000 40%, transparent);
  pointer-events: none;
}
.page-hero .container { position: relative; }
.page-hero .h1 { color: #fff; }
.page-hero .lead { color: rgba(255,255,255,.88); margin-top: 16px; max-width: 660px; }
.crumb { font-size: 13px; color: rgba(255,255,255,.7); margin-bottom: 20px; display: flex; align-items: center; gap: 8px; }
.crumb a:hover { color: #fff; }
.crumb .sep { opacity: .45; }

/* ---------- 11. 筛选 ---------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: 9px; align-items: center; margin-bottom: 34px; }
.chip {
  padding: 8px 18px; border-radius: var(--r-full);
  border: 1px solid var(--line); background: #fff;
  font-size: 14px; color: var(--ink-500); font-weight: 500;
  transition: .22s var(--ease);
}
.chip:hover { border-color: var(--red); color: var(--red); }
.chip.on { background: var(--red); border-color: var(--red); color: #fff; font-weight: 600; box-shadow: var(--sh-red); }

/* ---------- 12. 列表项卡片 ---------- */
.item-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .32s var(--ease), box-shadow .32s var(--ease);
}
.item-card:hover { transform: translateY(-4px); box-shadow: var(--sh-3); }
.item-cover {
  height: 186px; position: relative; overflow: hidden;
  display: flex; align-items: center; justify-content: center;
}
.item-cover img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease); }
/* 详情页大图 / 视频（后台可上传真实图片或演示视频，缺省回退品牌渐变封面） */
.detail-cover img, .detail-cover video, .item-cover video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.detail-cover video { background: #000; }
/* 品牌渐变封面：网格底纹 + 柔光 + 图标水印（无图时的统一视觉语言） */
.item-cover::before, .card-cover .cover::before, .detail-cover::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.09) 1px, transparent 1px);
  background-size: 34px 34px;
  -webkit-mask-image: radial-gradient(ellipse 90% 100% at 25% 15%, #000, transparent 76%);
  mask-image: radial-gradient(ellipse 90% 100% at 25% 15%, #000, transparent 76%);
}
.item-cover::after, .card-cover .cover::after, .detail-cover::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 78% 82%, rgba(255,255,255,.24), transparent 52%);
}
.cover-glyph {
  position: relative; z-index: 1; width: 74px; height: 74px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.28);
  color: #fff; backdrop-filter: blur(6px);
  transition: transform .42s var(--ease);
}
.cover-glyph svg { width: 34px; height: 34px; }
.item-card:hover .cover-glyph, .card:hover .cover-glyph { transform: scale(1.09); }
.item-card:hover .item-cover img { transform: scale(1.05); }
/* ===== 服务对象（首页，后台「服务对象」栏目驱动） ===== */
.aud-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.aud-card {
  background: #fff; border: 1px solid var(--line); border-radius: 20px;
  padding: 32px 26px; text-align: center;
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease), transform .3s var(--ease);
}
.aud-card:hover { border-color: var(--red-tint); box-shadow: 0 12px 34px rgba(16,18,24,.07); transform: translateY(-2px); }
.aud-ico {
  width: 58px; height: 58px; border-radius: 17px; margin: 0 auto 18px;
  display: flex; align-items: center; justify-content: center;
  background: var(--red-soft); color: var(--red);
}
.aud-ico svg { width: 27px; height: 27px; }
.aud-name { font-size: 16.5px; font-weight: 700; color: var(--ink-800); letter-spacing: -.01em; }
.aud-desc { margin-top: 9px; font-size: 13.5px; line-height: 1.72; color: var(--ink-500); }
@media (max-width: 1000px) { .aud-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .aud-grid { grid-template-columns: 1fr; } }

/* 有演示视频时的角标（封面不自动播放，避免弱网下载几十 MB 视频） */
.cover-vidbadge {
  position: absolute; z-index: 2; top: 12px; right: 12px;
  font-size: 11.5px; font-weight: 700; letter-spacing: .02em;
  padding: 4px 10px; border-radius: 999px; color: #fff;
  background: rgba(0,0,0,.42); border: 1px solid rgba(255,255,255,.3);
  backdrop-filter: blur(6px); pointer-events: none;
}
.item-body { padding: 24px 26px 28px; flex: 1; display: flex; flex-direction: column; gap: 12px; }
.item-body .h3 { font-size: 17.5px; }
.item-body .h3 a:hover { color: var(--red); }
.item-body .desc { color: var(--ink-500); font-size: 14px; flex: 1; line-height: 1.7; }
.item-meta { display: flex; align-items: center; gap: 9px; flex-wrap: wrap; }
.item-meta .date { margin-left: auto; font-size: 12.5px; color: var(--ink-400); }

/* ---------- 13. 时间轴 ---------- */
.tl { position: relative; max-width: 900px; margin: 0 auto; }
.tl::before { content: ""; position: absolute; left: 112px; top: 10px; bottom: 10px; width: 2px; background: linear-gradient(180deg, var(--red), var(--red-tint) 70%, transparent); }
.tl-item { position: relative; display: grid; grid-template-columns: 92px 1fr; gap: 40px; padding-bottom: 46px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-year { font-family: var(--font-num); font-size: 27px; font-weight: 800; letter-spacing: -.03em; color: var(--red); text-align: right; line-height: 1.2; }
.tl-body { position: relative; }
.tl-body::before {
  content: ""; position: absolute; left: -30px; top: 8px;
  width: 13px; height: 13px; border-radius: 50%;
  background: #fff; border: 3px solid var(--red);
  box-shadow: 0 0 0 5px rgba(200,16,46,.1);
}
.tl-body h3 { font-size: 18px; margin-bottom: 8px; }
.tl-body p { color: var(--ink-500); font-size: 14.5px; }
.tl-tag { margin-bottom: 10px; }

/* ---------- 14. 详情页 ---------- */
.detail-layout { display: grid; grid-template-columns: minmax(0,1fr) 330px; gap: 56px; padding: clamp(40px, 4.5vw, 64px) 0 0; }
.detail-main h1 { font-size: clamp(26px, 3vw, 38px); line-height: 1.28; letter-spacing: -.022em; font-weight: 800; }
.detail-main .detail-meta { display: flex; gap: 10px; flex-wrap: wrap; margin: 20px 0 0; }
.detail-main h2 { font-size: 21px; margin: 46px 0 18px; letter-spacing: -.012em; display: flex; align-items: center; gap: 12px; }
.detail-main h2::before { content: ""; width: 4px; height: 20px; border-radius: 2px; background: var(--red); flex: none; }
.detail-main p { color: var(--ink-600); font-size: 15.5px; margin-bottom: 14px; }
.detail-main .facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; margin: 32px 0; }
.detail-main .fact { background: #fff; padding: 22px 24px; display: flex; gap: 14px; align-items: center; }
.detail-main .fact .n { width: 40px; height: 40px; border-radius: 12px; background: var(--red-soft); color: var(--red); display: flex; align-items: center; justify-content: center; flex: none; }
.detail-main .fact .n svg { width: 19px; height: 19px; }
.detail-main .fact b { font-family: var(--font-num); font-size: 21px; font-weight: 800; color: var(--red); display: block; letter-spacing: -.02em; line-height: 1.2; }
.detail-cover { border-radius: var(--r-lg); overflow: hidden; margin: 30px 0; height: 300px; position: relative; display: flex; align-items: center; justify-content: center; }
.detail-aside { position: sticky; top: 92px; align-self: start; display: flex; flex-direction: column; gap: 20px; }
.aside-card { background: var(--surface); border-radius: var(--r-lg); padding: 26px; }
.aside-card h4 { font-size: 14px; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-400); margin-bottom: 16px; font-weight: 700; }
.aside-card a { display: flex; align-items: center; gap: 9px; padding: 10px 0; font-size: 14.5px; color: var(--ink-600); border-bottom: 1px solid var(--line-soft); transition: .2s; }
.aside-card a:last-child { border-bottom: none; }
.aside-card a:hover { color: var(--red); padding-left: 5px; }
.aside-cta { background: linear-gradient(150deg, var(--red), var(--red-deep)); color: #fff; border-radius: var(--r-lg); padding: 28px; }
.aside-cta h4 { color: #fff; font-size: 17px; letter-spacing: 0; text-transform: none; margin-bottom: 8px; }
.aside-cta p { color: rgba(255,255,255,.82); font-size: 13.5px; margin-bottom: 18px; }

/* ---------- 15. 成果 / 荣誉陈列 ---------- */
/* 注：旧 .honor-grid 网格定义已移除，避免与 17e「资质荣誉卡片网格」同名冲突 */
.honor-item {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  padding: 26px 22px; text-align: center;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.honor-item:hover { transform: translateY(-4px); box-shadow: var(--sh-3); }
.honor-badge {
  width: 62px; height: 62px; margin: 0 auto 16px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: radial-gradient(circle at 32% 28%, #FFE9ED, var(--red-tint));
  color: var(--red);
}
.honor-badge svg { width: 30px; height: 30px; }
.honor-item b { display: block; font-size: 15.5px; line-height: 1.45; }
.honor-item span { display: block; font-size: 12.5px; color: var(--ink-400); margin-top: 7px; }

/* ---------- 16. 团队 ---------- */
.team-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 22px; }
.team-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; transition: transform .3s var(--ease), box-shadow .3s var(--ease); }
.team-card:hover { transform: translateY(-4px); box-shadow: var(--sh-3); }
.team-avatar { height: 200px; display: flex; align-items: center; justify-content: center; font-size: 56px; font-weight: 700; color: #fff; letter-spacing: -.02em; position: relative; }
.team-avatar::after { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 70% 20%, rgba(255,255,255,.28), transparent 55%); }
.team-card .info { padding: 22px 24px 26px; }
.team-card .info b { font-size: 18px; display: block; letter-spacing: -.01em; }
.team-card .info .role { color: var(--red); font-size: 13px; font-weight: 700; margin: 6px 0 12px; letter-spacing: .02em; }
.team-card .info p { font-size: 13.5px; color: var(--ink-500); line-height: 1.7; }

/* ---------- 17. 合作墙 ---------- */
.logo-wall { display: grid; grid-template-columns: repeat(auto-fill, minmax(178px, 1fr)); gap: 14px; }
.logo-cell {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-sm);
  min-height: 82px; padding: 14px; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 3px;
  text-align: center; transition: .25s var(--ease);
}
.logo-cell b { font-size: 14px; color: var(--ink-700); font-weight: 600; line-height: 1.35; }
.logo-cell small { font-size: 11.5px; color: var(--ink-400); }
.logo-cell:hover { border-color: var(--red); transform: translateY(-3px); box-shadow: var(--sh-2); }
.logo-cell:hover b { color: var(--red); }

/* ---------- 17a. 跑马灯（伙伴墙等无缝滚动） ---------- */
.mq { overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
}
.mq + .mq { margin-top: 12px; }
.mq-track { display: flex; gap: 12px; width: max-content; animation: mql 52s linear infinite; }
.mq.rev .mq-track { animation-name: mqr; }
.mq:hover .mq-track { animation-play-state: paused; }
@keyframes mql { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@keyframes mqr { from { transform: translateX(-50%); } to { transform: translateX(0); } }
.mq-cell {
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  min-width: 178px; padding: 16px 18px; flex: none;
  display: flex; flex-direction: column; justify-content: center; gap: 3px;
  transition: .25s var(--ease);
}
.mq-cell b { font-size: 14.5px; font-weight: 600; color: var(--ink-700); white-space: nowrap; }
.mq-cell small { font-size: 11.5px; color: var(--ink-400); }
.mq-cell:hover { border-color: var(--red); box-shadow: var(--sh-2); }
.mq-cell:hover b { color: var(--red); }
@media (prefers-reduced-motion: reduce) { .mq-track { animation: none !important; } }

/* ---------- 17c. 精致数据条（全站复用） ---------- */
.ach-strip {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line);
  border-radius: var(--r-lg); overflow: hidden;
}
.ach-item { background: #fff; padding: 26px 26px 24px; position: relative; transition: background .3s; }
.ach-item:hover { background: var(--surface-2); }
.ach-item::before {
  content: ""; position: absolute; left: 0; top: 26px; width: 3px; height: 34px;
  border-radius: 0 3px 3px 0; background: linear-gradient(180deg, var(--red), var(--red-bright));
}
.ach-item .top { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.ach-item .top .ico-sm {
  width: 34px; height: 34px; border-radius: 10px; margin-bottom: 0;
  background: var(--red-soft); color: var(--red);
  display: flex; align-items: center; justify-content: center; flex: none;
}
.ach-item .top .ico-sm svg { width: 17px; height: 17px; }
.ach-item .top > span:not(.ico-sm) {
  font-size: 11.5px; font-weight: 700; letter-spacing: .14em;
  color: var(--ink-300); text-transform: uppercase;
}
.ach-item b {
  font-family: var(--font-num); font-size: 30px; font-weight: 800;
  letter-spacing: -.03em; color: var(--ink-900); line-height: 1;
}
.ach-item b i { font-style: normal; font-size: .46em; font-weight: 700; color: var(--red); margin-left: 3px; }
.ach-item .lb { display: block; font-size: 14px; color: var(--ink-700); font-weight: 600; margin-top: 8px; }
.ach-item small { display: block; font-size: 12.5px; color: var(--ink-400); margin-top: 3px; line-height: 1.6; }
@media (max-width: 900px) { .ach-strip { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .ach-strip { grid-template-columns: 1fr; } }

/* ---------- 17d. 院校 / 机构 logo 卡（logo + 名称） ---------- */
.uni-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(256px, 1fr)); gap: 14px; }
.uni-card {
  display: flex; align-items: center; gap: 14px; min-width: 0;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r); padding: 14px 16px;
  transition: transform .26s var(--ease), box-shadow .26s var(--ease), border-color .26s;
}
.uni-card:hover { border-color: var(--red); transform: translateY(-3px); box-shadow: var(--sh-2); }
.uni-logo {
  width: 46px; height: 46px; border-radius: 13px; flex: none;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 16px; font-weight: 800; letter-spacing: -.02em;
  box-shadow: 0 3px 10px rgba(14, 16, 20, .16);
}
.uni-logo.sm { width: 36px; height: 36px; border-radius: 10px; font-size: 13px; box-shadow: 0 2px 7px rgba(14, 16, 20, .14); }
/* 真实校徽：白底容器 + 等比缩放，避免渐变底吃掉校徽本身 */
.uni-logo.with-img { background: #fff; border: 1px solid var(--line); box-shadow: 0 2px 8px rgba(14, 16, 20, .08); overflow: hidden; }
.uni-logo.with-img img { width: 100%; height: 100%; object-fit: contain; padding: 5px; display: block; }
.uni-logo.sm.with-img img { padding: 3px; }
.uni-info { min-width: 0; flex: 1; }
.uni-info b {
  display: block; font-size: 14.5px; font-weight: 600; color: var(--ink-800); line-height: 1.4;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.uni-info small { display: block; font-size: 11.5px; color: var(--ink-400); margin-top: 3px; }
.uni-card:hover .uni-info b { color: var(--red); }

/* 跑马灯内的 logo 版式 */
.mq-cell.with-logo {
  flex-direction: row; align-items: center; gap: 11px;
  min-width: 252px; padding: 13px 17px;
}
.mq-cell.with-logo .uni-info b { max-width: 188px; }
.mq-cell.with-logo:hover .uni-info b { color: var(--red); }

/* ---------- 17e. 资质荣誉（壹刻成就页 · 三大板块集中归集） ---------- */
.honor-group {
  background: #fff; border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 26px 28px 16px; box-shadow: var(--sh-1);
}
.honor-group + .honor-group { margin-top: 18px; }
.hg-head { display: flex; align-items: center; gap: 12px; padding-bottom: 15px; border-bottom: 1px solid var(--line-soft); }
.hg-head::before {
  content: ""; width: 3px; height: 18px; border-radius: 0 3px 3px 0; flex: none;
  background: linear-gradient(180deg, var(--red), var(--red-bright));
}
.hg-head b { font-size: 16.5px; font-weight: 700; color: var(--ink-900); letter-spacing: -.01em; }
.hg-head small { font-size: 12px; font-weight: 600; color: var(--ink-300); letter-spacing: .02em; }
.hg-count {
  margin-left: auto; flex: none; font-family: var(--font-num); font-size: 12.5px; font-weight: 700;
  color: var(--red); background: var(--red-soft); border-radius: var(--r-full); padding: 4px 12px;
}
.hg-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); gap: 2px 22px; padding-top: 6px; }
.honor-line {
  display: flex; align-items: center; gap: 13px; min-width: 0;
  padding: 12px; border-radius: 12px; transition: background .22s var(--ease);
}
.honor-line:hover { background: var(--red-soft); }
.hl-ico {
  width: 34px; height: 34px; border-radius: 10px; flex: none;
  display: flex; align-items: center; justify-content: center;
  background: var(--surface-2); border: 1px solid var(--line-soft); color: var(--ink-500);
  transition: .22s var(--ease);
}
.hl-ico svg { width: 17px; height: 17px; }
.honor-line:hover .hl-ico { background: var(--red); border-color: transparent; color: #fff; }
.hl-main { min-width: 0; flex: 1; }
.hl-main b { display: block; font-size: 14.5px; font-weight: 700; color: var(--ink-900); line-height: 1.45; letter-spacing: -.01em; }
.hl-main small { display: block; font-size: 12.5px; color: var(--ink-400); margin-top: 2px; }
.hl-cat {
  flex: none; font-size: 10.5px; font-weight: 700; letter-spacing: .04em; line-height: 1;
  padding: 5px 10px; border-radius: var(--r-full);
  color: var(--ink-500); background: var(--surface-2); border: 1px solid var(--line);
  transition: .22s;
}
.honor-line:hover .hl-cat { color: var(--red); background: #fff; border-color: var(--red-tint); }
@media (max-width: 620px) {
  .honor-group { padding: 20px 18px 10px; }
  .hg-list { grid-template-columns: 1fr; }
  .hg-head small { display: none; }
}

/* ---------- 17b. 服务网络 ---------- */
.map-dot-card {
  display: flex; gap: 14px; align-items: flex-start;
  background: #fff; border: 1px solid var(--line); border-radius: var(--r);
  padding: 18px 20px; transition: .25s var(--ease);
}
.map-dot-card:hover { border-color: var(--red); box-shadow: var(--sh-2); transform: translateX(3px); }
.map-dot-card .pin {
  width: 42px; height: 42px; flex: none; border-radius: 12px;
  background: var(--red-soft); color: var(--red);
  display: flex; align-items: center; justify-content: center;
}
.map-dot-card b { font-size: 15.5px; display: block; }
.map-dot-card .hq-tag {
  font-size: 11px; background: var(--red); color: #fff;
  padding: 2px 8px; border-radius: 5px; margin-left: 7px; vertical-align: 2px; font-weight: 600;
}
.map-dot-card p { font-size: 13.5px; color: var(--ink-500); margin-top: 3px; line-height: 1.6; }

/* ---------- 18. 表单 ---------- */
.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--r-xl); padding: clamp(28px, 3.4vw, 44px); box-shadow: var(--sh-2); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13.5px; font-weight: 600; color: var(--ink-700); }
.field label .req { color: var(--red); margin-left: 2px; }
.field input, .field select, .field textarea {
  padding: 13px 16px; border: 1.5px solid var(--line); border-radius: var(--r-sm);
  outline: none; transition: .2s; background: #fff; color: var(--ink-800); font-size: 15px;
}
.field input::placeholder, .field textarea::placeholder { color: var(--ink-300); }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--red); box-shadow: 0 0 0 4px rgba(200,16,46,.09); }
.field textarea { resize: vertical; min-height: 108px; }
.field select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='11' height='7'%3E%3Cpath d='M1 1l4.5 4.5L10 1' stroke='%238A93A2' fill='none' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 16px center; padding-right: 40px; }
.agree { display: flex; align-items: center; gap: 9px; font-size: 13px; color: var(--ink-500); cursor: pointer; }
.agree input { width: 16px; height: 16px; accent-color: var(--red); flex: none; }
.agree a { color: var(--red); font-weight: 600; }
.form-err { color: var(--red); font-size: 13.5px; margin-top: 12px; display: none; }
.form-err.show { display: block; }

/* ---------- 19. 弹窗 / Toast ---------- */
.modal-mask { position: fixed; inset: 0; background: rgba(14,16,20,.55); backdrop-filter: blur(4px); z-index: 400; display: none; align-items: center; justify-content: center; padding: 24px; }
.modal-mask.open { display: flex; }
.modal { background: #fff; border-radius: var(--r-xl); max-width: 580px; width: 100%; max-height: 88vh; overflow: auto; position: relative; animation: pop .3s var(--ease-out); }
@keyframes pop { from { transform: scale(.95) translateY(10px); opacity: 0; } to { transform: scale(1) translateY(0); opacity: 1; } }
.modal-close { position: absolute; top: 16px; right: 16px; width: 36px; height: 36px; border-radius: 50%; background: var(--ink-100); color: var(--ink-500); display: flex; align-items: center; justify-content: center; z-index: 2; transition: .2s; }
.modal-close:hover { background: var(--red-soft); color: var(--red); }
.modal-body { padding: clamp(28px, 3.6vw, 42px); }
.modal-body h3 { font-size: 22px; letter-spacing: -.015em; }
.modal-body .modal-sub { color: var(--ink-500); font-size: 14.5px; margin: 10px 0 26px; }

.toast {
  position: fixed; left: 50%; bottom: 42px;
  transform: translateX(-50%) translateY(24px);
  background: var(--ink-900); color: #fff;
  padding: 14px 26px; border-radius: var(--r-sm); font-size: 14px;
  opacity: 0; transition: .34s var(--ease); z-index: 500; pointer-events: none;
  max-width: 90vw; box-shadow: var(--sh-3);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- 20. 页脚 ---------- */
.site-footer { background: #12141A; color: #9AA1AD; margin-top: 0; }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; padding: 68px 0 52px; }
.footer-top h4 { color: #fff; font-size: 14px; font-weight: 700; margin-bottom: 20px; letter-spacing: .04em; }
.footer-col a { display: block; font-size: 13.5px; color: #9AA1AD; padding: 5px 0; transition: .2s; }
.footer-col a:hover { color: #fff; padding-left: 4px; }
.footer-brand .logo-name { color: #fff; }
.footer-brand .logo-sub { color: #5A6270; }
.footer-brand p { font-size: 13.5px; line-height: 1.8; margin: 20px 0; max-width: 320px; }
.footer-contact { display: flex; flex-direction: column; gap: 8px; font-size: 13.5px; }
.footer-contact span { display: flex; align-items: center; gap: 9px; }
.footer-contact svg { width: 15px; height: 15px; color: var(--red-bright); flex: none; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 22px 0; display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; font-size: 12.5px; color: #5A6270; }
.footer-bottom a:hover { color: #fff; }
.footer-bottom .sep { margin: 0 9px; opacity: .4; }

/* ---------- 21. 悬浮 CTA ---------- */
.float-cta { position: fixed; right: 24px; bottom: 32px; display: flex; flex-direction: column; gap: 11px; z-index: 90; }
.float-cta a {
  width: 54px; height: 54px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--red); color: #fff; box-shadow: var(--sh-red);
  transition: .26s var(--ease);
}
.float-cta a svg { width: 22px; height: 22px; }
.float-cta a:hover { transform: scale(1.08) translateY(-2px); }
.float-cta a.alt { background: #fff; color: var(--red); border: 1px solid var(--line); box-shadow: var(--sh-2); }

/* ---------- 22. 滚动进场动效 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease-out), transform .7s var(--ease-out); }
.reveal.in { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: .07s; }
.reveal-d2 { transition-delay: .14s; }
.reveal-d3 { transition-delay: .21s; }
.reveal-d4 { transition-delay: .28s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* ---------- 22b. 内联图标（data-icon 由 JS 水合） ---------- */
[data-icon] { display: inline-flex; align-items: center; justify-content: center; width: 1em; height: 1em; flex: none; line-height: 0; }
[data-icon] > svg { width: 100%; height: 100%; display: block; }
.i-14 { font-size: 14px; } .i-16 { font-size: 16px; } .i-18 { font-size: 18px; }
.i-20 { font-size: 20px; } .i-22 { font-size: 22px; } .i-24 { font-size: 24px; }
.i-28 { font-size: 28px; } .i-32 { font-size: 32px; } .i-40 { font-size: 40px; }
.rot45 { transform: rotate(45deg); }

/* ---------- 23. 通用工具 ---------- */
.mt-s { margin-top: 12px; } .mt-m { margin-top: 24px; } .mt-l { margin-top: 40px; }
.center { text-align: center; }
.stack { display: flex; flex-direction: column; gap: 16px; }
.row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.divider { height: 1px; background: var(--line); border: none; margin: 48px 0; }
.pill-nav { display: flex; gap: 6px; flex-wrap: wrap; padding: 6px; background: var(--surface); border-radius: var(--r-full); margin-bottom: 40px; width: fit-content; }
.pill-nav a { padding: 9px 20px; border-radius: var(--r-full); font-size: 14px; font-weight: 600; color: var(--ink-500); transition: .2s; }
.pill-nav a:hover { color: var(--red); }
.pill-nav a.on { background: #fff; color: var(--red); box-shadow: var(--sh-1); }

/* 长页面侧栏吸顶（避免滚动后留白） */
.sticky-col { position: sticky; top: 92px; align-self: start; }

/* 双栏图文 */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 72px); align-items: center; }
.split > * { min-width: 0; } /* 防止内部 max-content（如跑马灯轨道）撑爆网格列 */
.split.wide-left { grid-template-columns: 1.25fr 1fr; }
.split.wide-right { grid-template-columns: 1fr 1.25fr; }
.media-frame { border-radius: var(--r-lg); overflow: hidden; box-shadow: var(--sh-3); }
.media-frame img { width: 100%; height: 100%; object-fit: cover; }

/* ---------- 24. 响应式 ---------- */
@media (max-width: 1080px) {
  .main-nav > a, .main-nav .nav-item > a { padding: 9px 10px; font-size: 14px; }
  .g-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1.4fr 1fr 1fr; }
  .detail-layout { grid-template-columns: 1fr; gap: 40px; }
  .detail-aside { position: static; }
  .sticky-col { position: static; }
}
@media (max-width: 900px) {
  .split, .split.wide-left, .split.wide-right { grid-template-columns: 1fr; }
  .g-3 { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 820px) {
  :root { --gutter: 20px; }
  /* 关键：backdrop-filter 会让 header 成为 fixed 子元素的包含块，压扁全屏抽屉，移动端必须去掉 */
  .site-header { backdrop-filter: none; -webkit-backdrop-filter: none; background: rgba(255,255,255,.97); }
  .menu-toggle { display: flex; }
  .header-actions .btn { display: none; }
  .main-nav {
    position: fixed; top: 70px; left: 0; right: 0; bottom: 0;
    background: #fff; flex-direction: column; align-items: stretch;
    padding: 18px 22px 48px; gap: 2px;
    transform: translateX(100%); transition: transform .3s var(--ease), visibility .3s;
    overflow-y: auto; z-index: 190; border-top: 1px solid var(--line);
    visibility: hidden;
  }
  .main-nav.open { transform: translateX(0); visibility: visible; }
  .main-nav > a, .main-nav .nav-item > a { padding: 15px 8px; font-size: 16.5px; border-bottom: 1px solid var(--line-soft); border-radius: 0; font-weight: 600; }
  .main-nav > a.active::after { display: none; }
  .nav-dropdown { position: static; transform: none; opacity: 1; visibility: visible; box-shadow: none; border: none; padding: 0 0 8px 16px; min-width: 0; }
  .nav-dropdown a { padding: 12px 10px; }
  /* 移动端二级菜单：抽屉内常显，左侧红色细线层级 + 收紧字距 */
  .main-nav .nav-item.has-sub > a { border-bottom: 1px solid var(--line-soft); }
  .main-nav .nav-item.has-sub > a::before { opacity: .32; transform: rotate(45deg); margin-top: -6px; }
  .nav-dropdown { padding: 4px 0 12px 14px; border-left: 2px solid var(--red-soft); margin-left: 10px; }
  .nav-dropdown .sub-link { padding: 10px 12px; }
  .nav-dropdown .sub-link b { font-size: 15px; }
  .nav-dropdown .sub-link small { font-size: 10px; margin-top: 2px; }
  .g-2, .g-3, .g-4 { grid-template-columns: 1fr; }
  .span-2, .span-3 { grid-column: auto; }
  .sec-head-row { flex-direction: column; align-items: flex-start; gap: 20px; }
  .form-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 34px; padding: 52px 0 40px; }
  .float-cta { display: none; }
  .tl::before { left: 3px; }
  .tl-item { grid-template-columns: 1fr; gap: 8px; padding-left: 32px; padding-bottom: 40px; }
  .tl-year { text-align: left; font-size: 22px; }
  .tl-body::before { left: -36px; top: 6px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 10px; }
}
@media (max-width: 520px) {
  .footer-top { grid-template-columns: 1fr; }
  .btn { padding: 12px 22px; font-size: 14.5px; }
  .btn-lg { padding: 14px 28px; font-size: 15.5px; }
  .card { padding: 24px; }
  .item-cover { height: 168px; }
}

/* ===== v3.4 内容版本提示条（别人改了后台，开着的页面能感知） ===== */
.rev-pill {
  position: fixed; left: 24px; bottom: 24px; z-index: 900;
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 20px 11px 16px; border: 0; cursor: pointer;
  border-radius: 999px; background: #1A1D24; color: #fff;
  font: 600 13.5px/1 -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  box-shadow: 0 12px 30px rgba(14, 16, 20, .28);
  opacity: 0; transform: translateY(14px); pointer-events: none;
  transition: opacity .28s ease, transform .28s ease, background .2s;
}
.rev-pill.on { opacity: 1; transform: none; pointer-events: auto; }
.rev-pill:hover { background: #C8102E; }
.rev-dot {
  width: 7px; height: 7px; border-radius: 50%; background: #C8102E;
  box-shadow: 0 0 0 0 rgba(200, 16, 46, .55); animation: revPulse 1.8s infinite;
}
.rev-pill:hover .rev-dot { background: #fff; }
@keyframes revPulse {
  70% { box-shadow: 0 0 0 7px rgba(200, 16, 46, 0); }
  100% { box-shadow: 0 0 0 0 rgba(200, 16, 46, 0); }
}
@media (max-width: 860px) {
  .rev-pill { left: 14px; bottom: 14px; padding: 10px 16px 10px 13px; font-size: 12.5px; }
}

/* ===== v3.3 品牌 Logo 可替换 + 媒体位支持视频 ===== */
/* 方形图标 + 品牌名文字并排：图标 40px，圆角与图标自身的圆角呼应 */
.logo.has-img { gap: 10px; }
.logo-img { display: block; height: 40px; width: auto; max-width: 220px; object-fit: contain; border-radius: 10px; }
.footer-brand .logo-img { height: 38px; }
@media (max-width: 860px) {
  .logo-img { height: 34px; border-radius: 9px; }
  .footer-brand .logo-img { height: 34px; }
  .logo.has-img .logo-name { font-size: 16.5px; }
  .logo.has-img .logo-sub { font-size: 9px; letter-spacing: .18em; }
}
/* 图片位填入视频路径时，由 common.js 自动升级为 <video>，此处保证与 img 同规格填充 */
video.media-video { display: block; width: 100%; height: 100%; object-fit: cover; background: #0B0D12; }