/* =========================================================
   知行至善企业学院 · 展示型官网（商务蓝版）
   视觉风格：现代商务蓝（权威深蓝 / 科技亮蓝 / 白底通透）
   面向：大型企业 · 国央企 · 政务服务 · 连锁品牌
   复用沉静版全部 class 体系，仅重定义配色与视觉氛围
   ========================================================= */

:root {
  /* 色彩 */
  --navy:        #0A2A5E;   /* 权威深蓝（主色/底色） */
  --navy-2:      #0E3A7A;   /* 深蓝次 */
  --blue:        #1E6BEE;   /* 科技亮蓝（主强调） */
  --blue-soft:   #5B94F5;   /* 亮蓝浅 */
  --blue-tint:   #EAF1FE;   /* 极浅蓝辅助底 */
  --paper:       #F5F8FD;   /* 通透白蓝底 */
  --paper-2:     #E9EFF8;   /* 次底 */
  --surface:     #FFFFFF;   /* 卡片 */
  --ink:         #0F2540;   /* 主文字（墨蓝） */
  --ink-soft:    #3C4F66;   /* 次级文字 */
  --muted:       #7488A0;   /* 弱化文字 */
  --line:        rgba(15,37,64,0.10);
  --line-strong: rgba(15,37,64,0.18);
  --shadow:       0 18px 48px -28px rgba(10,42,94,0.40);
  --shadow-sm:    0 8px 24px -16px rgba(10,42,94,0.35);

  /* 字体：现代无衬线为主，标题略带衬线权威感 */
  --serif: "Songti SC", "STSong", "Noto Serif SC", "Source Han Serif SC", "SimSun", serif;
  --sans:  "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans SC", system-ui, -apple-system, sans-serif;

  /* 尺寸 */
  --maxw: 1180px;
  --radius: 14px;
  --radius-sm: 10px;
  --header-h: 68px;

  /* 兼容别名：原沉静版 HTML 内联样式引用 var(--gold)，统一映射为蓝色系 */
  --gold: var(--blue);
  --gold-soft: var(--blue-soft);
}

/* ---------- 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.75;
  font-size: 16px;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; cursor: pointer; }
h1, h2, h3, h4 { font-family: var(--sans); font-weight: 700; line-height: 1.3; color: var(--ink); margin: 0; letter-spacing: .01em; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  height: var(--header-h);
  display: flex; align-items: center;
  background: rgba(255,255,255,0.86);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s, box-shadow .3s;
}
.site-header.scrolled { border-bottom-color: var(--line); background: rgba(255,255,255,0.96); box-shadow: 0 6px 24px -18px rgba(10,42,94,.5); }
.nav { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.brand { display: flex; align-items: center; gap: 12px; font-family: var(--sans); }
.brand .logo-mark {
  width: 38px; height: 38px; border-radius: 10px;
  background: linear-gradient(135deg, var(--navy), var(--blue));
  color: #fff;
  display: grid; place-items: center; font-size: 17px; letter-spacing: 0; font-weight: 700;
  box-shadow: var(--shadow-sm);
}
.brand .brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand .brand-cn { font-size: 17px; font-weight: 700; }
.brand .brand-en { font-size: 11px; color: var(--muted); letter-spacing: .18em; font-family: var(--sans); }

.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a {
  font-size: 15px; color: var(--ink-soft); position: relative; padding: 6px 0;
  transition: color .25s; font-weight: 500;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 2px; width: 0;
  background: var(--blue); transition: width .28s ease;
}
.nav-links a:hover, .nav-links a.active { color: var(--navy); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-cta { margin-left: 8px; }

/* 移动端菜单按钮 */
.nav-toggle { display: none; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 10px; background: transparent; position: relative; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 50%; top: 50%; width: 18px; height: 2px;
  background: var(--navy); transform: translate(-50%,-50%); transition: .25s;
}
.nav-toggle span::before { top: -6px; } .nav-toggle span::after { top: 6px; }
.nav-toggle.open span { background: transparent; }
.nav-toggle.open span::before { top: 0; transform: translate(-50%,-50%) rotate(45deg); }
.nav-toggle.open span::after { top: 0; transform: translate(-50%,-50%) rotate(-45deg); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 26px; border-radius: 999px; font-size: 15px; font-weight: 600;
  border: 1px solid transparent; transition: transform .2s, box-shadow .25s, background .25s, color .25s;
  white-space: nowrap;
}
.btn-primary { background: linear-gradient(135deg, var(--navy), var(--blue)); color: #fff; box-shadow: 0 12px 28px -14px rgba(30,107,238,.65); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 34px -14px rgba(30,107,238,.75); }
.btn-gold { background: var(--blue); color: #fff; }
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 12px 26px -12px rgba(30,107,238,.7); }
.btn-ghost { background: transparent; border-color: var(--line-strong); color: var(--ink); }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }
.btn-sm { padding: 9px 18px; font-size: 14px; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  padding: 96px 0 84px;
  background:
    radial-gradient(1100px 560px at 82% -12%, rgba(91,148,245,.28), transparent 60%),
    linear-gradient(180deg, #EEF4FE 0%, var(--paper) 100%);
}
/* 科技感网格底纹（纯 CSS，替代水墨） */
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .55;
  background-image:
    linear-gradient(rgba(30,107,238,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(30,107,238,.07) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(120% 80% at 70% 0%, #000 30%, transparent 75%);
  mask-image: radial-gradient(120% 80% at 70% 0%, #000 30%, transparent 75%);
}
.hero .container { position: relative; z-index: 1; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 13px; letter-spacing: .22em; color: var(--blue);
  text-transform: uppercase; margin-bottom: 22px; font-weight: 600;
}
.eyebrow::before { content: ""; width: 34px; height: 2px; background: var(--blue); }
.hero h1 {
  font-size: clamp(34px, 5vw, 56px); line-height: 1.2; margin-bottom: 22px;
  letter-spacing: .01em; font-weight: 800;
}
.hero h1 .accent { color: var(--blue); }
.hero .lede { font-size: clamp(16px, 1.6vw, 19px); color: var(--ink-soft); max-width: 36em; margin-bottom: 34px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-stats { display: flex; gap: 34px; margin-top: 46px; flex-wrap: wrap; }
.hero-stats .num { font-family: var(--sans); font-weight: 800; font-size: 30px; color: var(--navy); }
.hero-stats .lbl { font-size: 13px; color: var(--muted); }
.hero-stats .item { display: flex; flex-direction: column; }

/* Hero 卡片（讲师/理念） */
.hero-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px; box-shadow: var(--shadow); position: relative;
}
.hero-card .seal {
  position: absolute; top: 22px; right: 22px; width: 54px; height: 54px; border-radius: 10px;
  border: 1px solid var(--blue); color: var(--blue); display: grid; place-items: center;
  font-family: var(--sans); font-weight: 700; font-size: 13px; line-height: 1.1; text-align: center; transform: rotate(-4deg);
}
.hero-card .quote { font-family: var(--sans); font-size: 18px; line-height: 1.85; color: var(--ink); margin: 6px 0 18px; font-weight: 500; }
.hero-card .who { display: flex; align-items: center; gap: 12px; }
.hero-card .who img { width: 46px; height: 46px; border-radius: 50%; object-fit: cover; }
.hero-card .who .name { font-weight: 700; }
.hero-card .who .role { font-size: 13px; color: var(--muted); }

/* ---------- 通用区块 ---------- */
section { padding: 84px 0; }
.section-head { max-width: 720px; margin: 0 auto 52px; text-align: center; }
.section-head .kicker { color: var(--blue); font-size: 13px; letter-spacing: .22em; text-transform: uppercase; font-weight: 600; }
.section-head h2 { font-size: clamp(26px, 3.4vw, 38px); margin: 14px 0 14px; font-weight: 800; }
.section-head p { color: var(--ink-soft); margin: 0; }
.gold-rule { width: 56px; height: 3px; background: var(--blue); margin: 18px auto 0; border-radius: 2px; }

/* ---------- 关于 / 理念 ---------- */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.about-grid .media { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--line); }
.about-grid .media img { width: 100%; height: 100%; object-fit: cover; min-height: 320px; }
.belief-list { margin-top: 26px; display: grid; gap: 16px; }
.belief-list li { display: flex; gap: 14px; align-items: baseline; }
.belief-list .b-key { color: var(--blue); font-weight: 700; font-size: 16px; min-width: 5.5em; }
.belief-list .b-val { color: var(--ink-soft); }

/* ---------- 课程 / 业务 ---------- */
.cards-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 28px; transition: transform .25s, box-shadow .25s, border-color .25s;
  display: flex; flex-direction: column; gap: 12px;
  border-top: 3px solid var(--blue);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--blue-soft); }
.card .c-idx { color: var(--blue-soft); font-weight: 700; font-size: 15px; letter-spacing: .1em; }
.card h3 { font-size: 20px; font-weight: 700; }
.card p { color: var(--ink-soft); font-size: 15px; margin: 0; }
.card .tags { margin-top: auto; display: flex; flex-wrap: wrap; gap: 8px; padding-top: 8px; }
.card .tag { font-size: 12px; color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 3px 11px; }

/* ---------- 案例 ---------- */
.case-filter { display: flex; justify-content: center; gap: 10px; margin-bottom: 36px; flex-wrap: wrap; }
.case-filter button {
  border: 1px solid var(--line-strong); background: transparent; color: var(--ink-soft);
  padding: 9px 20px; border-radius: 999px; font-size: 14px; transition: .2s; font-weight: 500;
}
.case-filter button.active, .case-filter button:hover { background: linear-gradient(135deg, var(--navy), var(--blue)); color: #fff; border-color: transparent; }
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  transition: transform .25s, box-shadow .25s; display: flex; flex-direction: column;
}
.case:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.case .thumb { aspect-ratio: 16/10; overflow: hidden; position: relative; background: var(--paper-2); }
.case .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.case:hover .thumb img { transform: scale(1.05); }
.case .thumb .badge {
  position: absolute; top: 14px; left: 14px; font-size: 12px; padding: 4px 12px; border-radius: 999px;
  background: rgba(10,42,94,.82); color: #fff; backdrop-filter: blur(4px);
}
.case .body { padding: 22px 24px 26px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.case .client { font-size: 13px; color: var(--blue); letter-spacing: .04em; font-weight: 600; }
.case h3 { font-size: 18px; }
.case p { color: var(--ink-soft); font-size: 14px; margin: 0; }
.case .meta { margin-top: auto; font-size: 13px; color: var(--muted); border-top: 1px dashed var(--line); padding-top: 12px; }
.case.hide { display: none; }

/* ---------- 优势 ---------- */
.why { background: linear-gradient(160deg, var(--navy) 0%, var(--navy-2) 100%); color: #fff; }
.why .section-head h2 { color: #fff; }
.why .section-head p { color: rgba(255,255,255,.72); }
.why .gold-rule { background: var(--blue); }
.why-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.why-item { display: flex; gap: 18px; padding: 24px; border: 1px solid rgba(255,255,255,.16); border-radius: var(--radius); background: rgba(255,255,255,.04); transition: background .25s, transform .25s; }
.why-item:hover { background: rgba(255,255,255,.08); transform: translateY(-3px); }
.why-item .wi-no { font-family: var(--sans); font-weight: 800; font-size: 24px; color: var(--blue-soft); min-width: 1.4em; }
.why-item h3 { color: #fff; font-size: 18px; margin-bottom: 6px; font-weight: 700; }
.why-item p { color: rgba(255,255,255,.7); font-size: 14px; margin: 0; }

/* ---------- 数据见证 ---------- */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat { padding: 20px 10px; border-radius: var(--radius); background: var(--blue-tint); border: 1px solid var(--line); }
.stat .n { font-family: var(--sans); font-weight: 800; font-size: clamp(34px, 4.4vw, 52px); color: var(--navy); line-height: 1; }
.stat .n .u { font-size: .5em; color: var(--blue); margin-left: 4px; }
.stat .t { color: var(--muted); font-size: 14px; margin-top: 10px; }

/* ---------- 联系 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.contact-info { display: grid; gap: 22px; }
.contact-info .ci { display: flex; gap: 16px; align-items: flex-start; }
.contact-info .ci .ic {
  width: 44px; height: 44px; border-radius: 12px; background: var(--blue-tint);
  display: grid; place-items: center; color: var(--blue); font-size: 18px; flex-shrink: 0;
}
.contact-info .ci .ci-t { font-weight: 700; }
.contact-info .ci .ci-v { color: var(--ink-soft); font-size: 15px; }
.contact-info .ci .ci-v a:hover { color: var(--blue); }
.form-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px; box-shadow: var(--shadow-sm); }
.form-card h3 { font-size: 20px; margin-bottom: 18px; font-weight: 700; }
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 7px; font-weight: 500; }
.field input, .field textarea, .field select {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line-strong); border-radius: 10px;
  font-family: inherit; font-size: 15px; color: var(--ink); background: #FBFDFF; transition: border-color .2s, box-shadow .2s;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(30,107,238,.15);
}
.field textarea { resize: vertical; min-height: 110px; }
.form-note { font-size: 12px; color: var(--muted); margin-top: 12px; }
.form-ok { display: none; background: rgba(30,107,238,.12); border: 1px solid var(--blue-soft); color: var(--ink); padding: 14px 16px; border-radius: 10px; font-size: 14px; margin-top: 14px; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--navy); color: rgba(255,255,255,.72); padding: 56px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 36px; }
.site-footer .f-brand .brand-cn { font-family: var(--sans); font-size: 19px; color: #fff; font-weight: 700; }
.site-footer .f-brand p { font-size: 14px; color: rgba(255,255,255,.6); margin: 14px 0 0; max-width: 30em; }
.site-footer h4 { color: #fff; font-size: 15px; margin-bottom: 16px; font-family: var(--sans); letter-spacing: .04em; font-weight: 600; }
.site-footer ul li { margin-bottom: 10px; font-size: 14px; }
.site-footer ul li a:hover { color: var(--blue-soft); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.14); margin-top: 40px; padding-top: 22px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: 13px; color: rgba(255,255,255,.5); }
.footer-bottom a:hover { color: var(--blue-soft); }

/* ---------- 滚动出现动画 ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; } }

/* ---------- 回到顶部 ---------- */
.to-top {
  position: fixed; right: 22px; bottom: 22px; width: 46px; height: 46px; border-radius: 50%;
  background: linear-gradient(135deg, var(--navy), var(--blue)); color: #fff; border: none; display: grid; place-items: center;
  font-size: 20px; opacity: 0; pointer-events: none; transition: opacity .3s, transform .3s; z-index: 90;
  box-shadow: var(--shadow-sm);
}
.to-top.show { opacity: 1; pointer-events: auto; }
.to-top:hover { transform: translateY(-3px); }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-card { order: -1; }
  .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .cards-grid, .case-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
/* =========================================================
   真实内容增强组件（2026-10-16 加入真实素材后新增）
   ========================================================= */

/* ---------- 客户 logo 墙 ---------- */
.client-strip { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.client-strip .logo-box {
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  display: grid; place-items: center; height: 96px; padding: 16px;
  transition: box-shadow .25s, transform .25s, border-color .25s;
}
.client-strip .logo-box:hover { box-shadow: var(--shadow-sm); transform: translateY(-3px); border-color: var(--blue-soft); }
.client-strip .logo-box img { max-height: 54px; max-width: 100%; width: auto; object-fit: contain; filter: grayscale(.9) opacity(.78); transition: filter .3s; }
.client-strip .logo-box:hover img { filter: none; }
.client-wall-img { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow); margin-top: 26px; }
.client-wall-img img { width: 100%; display: block; }
.client-note { text-align: center; color: var(--muted); font-size: 13px; margin: 18px 0 0; }

/* ---------- 四大业务板块 ---------- */
.pillars { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.pillar {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 24px; border-top: 3px solid var(--blue); transition: transform .25s, box-shadow .25s;
}
.pillar:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.pillar .p-no { font-weight: 800; font-size: 13px; color: var(--blue-soft); letter-spacing: .18em; }
.pillar h3 { font-size: 19px; margin: 10px 0 10px; }
.pillar p { color: var(--ink-soft); font-size: 14.5px; margin: 0; }
.pillar .p-list { margin-top: 14px; display: flex; flex-wrap: wrap; gap: 7px; }
.pillar .p-list span { font-size: 12px; color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 3px 10px; }

/* ---------- 师资团队 ---------- */
.teachers-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.teacher-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: transform .25s, box-shadow .25s; display: flex; flex-direction: column;
}
.teacher-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.teacher-card .ph { aspect-ratio: 3/3.6; overflow: hidden; background: linear-gradient(180deg, var(--blue-tint), var(--paper-2)); }
.teacher-card .ph img { width: 100%; height: 100%; object-fit: cover; object-position: top center; }
.teacher-card .tb { padding: 20px 20px 24px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.teacher-card .tn { font-size: 19px; font-weight: 700; color: var(--navy); display: flex; align-items: baseline; gap: 8px; }
.teacher-card .tn .role { font-size: 12px; color: var(--blue); letter-spacing: .02em; font-weight: 600; }
.teacher-card .tt { font-size: 13px; color: var(--muted); line-height: 1.6; }
.teacher-card .spec { margin-top: auto; font-size: 13px; color: var(--ink-soft); border-top: 1px dashed var(--line); padding-top: 12px; }

/* 师资详情（关于/师资页用） */
.teacher-row { display: grid; grid-template-columns: 300px 1fr; gap: 40px; align-items: start; padding: 40px 0; border-bottom: 1px solid var(--line); }
.teacher-row:last-child { border-bottom: none; }
.teacher-row .tr-photo { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--line); }
.teacher-row .tr-photo img { width: 100%; display: block; }
.teacher-row .tr-name { font-size: 26px; font-weight: 800; color: var(--navy); }
.teacher-row .tr-title { color: var(--blue); font-size: 14px; margin: 6px 0 18px; font-weight: 600; }
.teacher-row h4 { font-size: 14px; color: var(--muted); letter-spacing: .1em; margin: 18px 0 10px; text-transform: uppercase; }
.teacher-row .cred { display: grid; gap: 8px; }
.teacher-row .cred li { font-size: 14.5px; color: var(--ink-soft); padding-left: 18px; position: relative; }
.teacher-row .cred li::before { content: ""; position: absolute; left: 0; top: .7em; width: 6px; height: 6px; border-radius: 50%; background: var(--blue-soft); }
.teacher-row .bio { color: var(--ink-soft); font-size: 15px; margin: 6px 0 0; }
.teacher-row .courses { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.teacher-row .courses span { font-size: 13px; color: var(--navy); background: var(--blue-tint); border-radius: 8px; padding: 5px 12px; }

/* ---------- 照片墙 ---------- */
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.gallery-grid figure { margin: 0; position: relative; border-radius: 12px; overflow: hidden; aspect-ratio: 4/3; border: 1px solid var(--line); }
.gallery-grid img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.gallery-grid figure:hover img { transform: scale(1.05); }
.gallery-grid figcaption {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 26px 16px 12px; color: #fff; font-size: 13px;
  background: linear-gradient(transparent, rgba(10,42,94,.86));
}

/* ---------- 服务网络 ---------- */
.network-chips { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; }
.network-chips span { font-size: 14px; color: var(--navy); background: #fff; border: 1px solid var(--line-strong); border-radius: 999px; padding: 8px 18px; }

/* ---------- 数据条（图片+文字） ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.split .media { border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); border: 1px solid var(--line); }
.split .media img { width: 100%; display: block; }

/* ---------- 响应式补充 ---------- */
@media (max-width: 980px) {
  .client-strip { grid-template-columns: repeat(3, 1fr); }
  .pillars { grid-template-columns: repeat(2, 1fr); }
  .teachers-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; gap: 30px; }
  .teacher-row { grid-template-columns: 1fr; gap: 22px; }
  .teacher-row .tr-photo { max-width: 320px; }
}
/* ---------- 内页头 ---------- */
.page-hero {
  padding: 76px 0 52px; text-align: center;
  background:
    radial-gradient(900px 400px at 80% -20%, rgba(91,148,245,.20), transparent 60%),
    linear-gradient(180deg, #EEF4FE 0%, var(--paper) 100%);
}
.page-hero .kicker { color: var(--blue); font-size: 13px; letter-spacing: .22em; text-transform: uppercase; font-weight: 600; }
.page-hero h1 { font-size: clamp(28px, 3.6vw, 42px); margin: 14px 0 14px; font-weight: 800; }
.page-hero p { color: var(--ink-soft); max-width: 48em; margin: 0 auto; }

/* ---------- 内页通用块 ---------- */
.block-title { font-size: clamp(22px, 2.6vw, 30px); margin: 0 0 14px; font-weight: 800; }
.prose p { color: var(--ink-soft); margin: 0 0 16px; }
.course-cols { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.course-col { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 24px; border-top: 3px solid var(--blue); }
.course-col h3 { font-size: 19px; margin-bottom: 16px; }
.course-col ul { display: grid; gap: 10px; }
.course-col li { font-size: 14.5px; color: var(--ink-soft); padding-left: 18px; position: relative; }
.course-col li::before { content: ""; position: absolute; left: 0; top: .7em; width: 6px; height: 6px; border-radius: 50%; background: var(--blue-soft); }
.partner-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.partner { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px 24px; text-align: center; }
.partner h3 { font-size: 18px; margin-bottom: 8px; color: var(--navy); }
.partner p { color: var(--ink-soft); font-size: 14px; margin: 0; }
.study-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.study-list span { text-align: center; font-size: 14px; color: var(--navy); background: #fff; border: 1px solid var(--line-strong); border-radius: 10px; padding: 14px 8px; }

@media (max-width: 980px) {
  .partner-grid { grid-template-columns: 1fr; }
  .study-list { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .nav-links {
    position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0;
    background: #fff; flex-direction: column; align-items: stretch; justify-content: flex-start;
    gap: 0; padding: 18px 24px; transform: translateX(100%); transition: transform .3s ease;
    box-shadow: var(--shadow);
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links a { padding: 16px 4px; border-bottom: 1px solid var(--line); font-size: 17px; }
  .nav-links .nav-cta { margin: 16px 0 0; }
  .nav-toggle { display: block; }
  section { padding: 64px 0; }
  .hero { padding: 64px 0 56px; }
  .cards-grid, .case-grid, .stats-grid, .teachers-grid, .pillars { grid-template-columns: 1fr; }
  .client-strip { grid-template-columns: repeat(2, 1fr); }
  .gallery-grid, .course-cols, .partner-grid { grid-template-columns: 1fr; }
  .study-list { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero-stats { gap: 22px; }
}

/* =========================================================
   2026-10-16 第二轮增强
   彩色 logo / 十五年·能力版图 / 四大课程 / 精品课程 / 理念
   ========================================================= */

/* 品牌彩色 logo（导航） */
.brand .logo-img { height: 40px; width: auto; display: block; }

/* 十五年 · 能力版图 */
.domains { background: var(--surface); }
.domain-row { display: grid; grid-template-columns: repeat(5, 1fr); border-top: 2px solid var(--navy); }
.domain-item {
  position: relative; padding: 34px 22px 30px; border-right: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 12px; transition: background .25s;
}
.domain-item:last-child { border-right: none; }
.domain-item:hover { background: var(--blue-tint); }
.domain-item::before { content: ""; position: absolute; top: -2px; left: 0; right: 0; height: 2px; background: transparent; transition: background .25s; }
.domain-item:hover::before { background: var(--blue); }
.domain-item .d-no { font-family: var(--serif); font-size: 14px; font-weight: 700; letter-spacing: .12em; color: var(--blue-soft); }
.domain-item .d-key { font-size: 20px; font-weight: 800; color: var(--navy); letter-spacing: .04em; }
.domain-item .d-val { font-size: 13.5px; color: var(--muted); line-height: 1.7; }

/* 四大课程网格（2×2） */
.courses-4 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

/* 培训理念（三行制） */
.belief-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 30px; }
.belief-cell { border-left: 2px solid var(--blue); padding: 6px 0 6px 18px; }
.belief-cell .bc-k { font-size: 17px; font-weight: 700; color: var(--navy); }
.belief-cell .bc-v { font-size: 14px; color: var(--ink-soft); margin-top: 6px; }

/* 精品课程名条目 */
.course-name-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.course-name {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 20px 22px; transition: transform .25s, box-shadow .25s, border-color .25s;
}
.course-name:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); border-color: var(--blue-soft); }
.course-name h4 { font-size: 15.5px; color: var(--navy); font-weight: 700; margin-bottom: 8px; }
.course-name p { margin: 0; font-size: 13.5px; color: var(--muted); line-height: 1.65; }

/* 合作单位名录 */
.partner-tags { display: flex; flex-wrap: wrap; gap: 9px; justify-content: center; }
.partner-tags span { font-size: 13.5px; color: var(--ink-soft); background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 7px 15px; }

/* 标语条 */
.tagline-band {
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-2) 100%); color: #fff;
  border-radius: var(--radius); padding: 48px 32px; text-align: center; box-shadow: var(--shadow);
}
.tagline-band .tb-line { font-size: clamp(20px, 2.8vw, 30px); font-weight: 800; letter-spacing: .04em; line-height: 1.5; }
.tagline-band .tb-line .em { color: var(--blue-soft); }
.tagline-band .tb-sub { margin-top: 12px; font-size: 14px; color: rgba(255,255,255,.68); letter-spacing: .08em; }

@media (max-width: 980px) {
  .domain-row { grid-template-columns: repeat(2, 1fr); border-top-width: 2px; }
  .domain-item { border-right: none; border-bottom: 1px solid var(--line); }
  .belief-row, .course-name-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .domain-row { grid-template-columns: 1fr; }
  .courses-4, .course-cols, .belief-row, .course-name-grid { grid-template-columns: 1fr; }
}

/* =========================================================
   FAQ 版块（GEO：供 AI 引擎直接抓取引用的问题-答案对）
   ========================================================= */
.faq-list { display: flex; flex-direction: column; gap: 14px; max-width: 860px; margin: 0 auto; }
.faq-item { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.faq-item[open] { border-color: var(--blue-soft); box-shadow: var(--shadow-sm); }
.faq-item summary {
  list-style: none; cursor: pointer; display: flex; align-items: flex-start; gap: 12px;
  padding: 18px 22px; font-weight: 700; font-size: 16.5px; color: var(--ink); line-height: 1.5;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before {
  content: "Q"; flex: none; width: 24px; height: 24px; border-radius: 6px;
  background: var(--blue-tint); color: var(--blue); font-size: 13px; font-weight: 800;
  display: flex; align-items: center; justify-content: center; margin-top: 1px;
}
.faq-item[open] summary::before { background: var(--blue); color: #fff; }
.faq-item .faq-a { padding: 0 22px 20px 58px; color: var(--ink-soft); font-size: 15px; line-height: 1.75; }
.faq-item .faq-a strong { color: var(--navy); }
@media (max-width: 720px) {
  .faq-item .faq-a { padding-left: 22px; }
}

/* 两列理念行（价值主张/客户画像） */
.belief-row-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-top: 30px; }
@media (max-width: 720px) { .belief-row-2 { grid-template-columns: 1fr; } }