/* ============================================================
   官网模板 v2 · 对齐康宏那类企业站的结构
   蓝色顶栏 + 二级下拉 + 面包屑 + 数字条 + 分类列表
   仍然守住：单主色、衬线数字、只用 transition、零 keyframes
   ============================================================ */

:root {
  --primary: #1a6fc4;
  --primary-600: #12579c;
  --primary-050: #eaf3fb;
  --accent: #d8a24a;
  --ink-900: #12202c;
  --ink-700: #33424f;
  --ink-500: #6b7a86;
  --line: #e4e9ee;
  --bg: #ffffff;
  --bg-alt: #f5f7f9;
  --bg-dark: #0e1b26;

  --container: 1600px;
  --content: 1200px;
  --gutter: 24px;
  --radius: 10px;
  --radius-sm: 6px;

  --sans: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --serif: Georgia, "Times New Roman", serif;

  --fs-12: 12px; --fs-13: 13px; --fs-14: 14px; --fs-15: 15px; --fs-16: 16px;
  --fs-18: 18px; --fs-20: 20px; --fs-22: 22px; --fs-24: 24px;
  --fs-display: clamp(32px, 3.6vw, 46px);

  --t: .28s cubic-bezier(.4, 0, .2, 1);
  --t-slow: .6s cubic-bezier(.2, .6, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: var(--fs-16);
  line-height: 1.75;
  color: var(--ink-700);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { color: var(--ink-900); font-weight: 700; line-height: 1.3; margin: 0 0 .6em; }
h1 { font-size: var(--fs-display); letter-spacing: -.3px; }
h2 { font-size: clamp(22px, 2.2vw, 30px); }
h3 { font-size: var(--fs-18); }
p { margin: 0 0 1em; }
a { color: var(--primary); text-decoration: none; transition: color var(--t); }
a:hover { color: var(--primary-600); }
img { max-width: 100%; display: block; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; border-radius: 3px; }

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

.skip { position: absolute; left: -9999px; top: 0; background: var(--primary); color: #fff; padding: 10px 16px; z-index: 100; }
.skip:focus { left: 8px; top: 8px; }

/* ---------- 顶栏：整条蓝色，白色导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: linear-gradient(90deg, var(--primary-600) 0%, var(--primary) 55%, #2b86d9 100%);
  transition: box-shadow var(--t);
}
.site-header.is-stuck { box-shadow: 0 8px 24px rgba(10, 40, 70, .22); }

.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }

.brand { display: flex; align-items: center; gap: 10px; color: #fff; }
.brand:hover { color: #fff; }
.brand-mark {
  width: 36px; height: 36px; flex: 0 0 36px; display: grid; place-items: center;
  background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.28);
  border-radius: var(--radius-sm);
  font-family: var(--serif); font-size: var(--fs-16); font-weight: 700;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text b { font-size: var(--fs-16); letter-spacing: .04em; color: #fff; }
.brand-text em { font-style: normal; font-size: 10px; letter-spacing: .14em; color: rgba(255,255,255,.66); margin-top: 2px; }

.nav { display: flex; align-items: center; gap: 16px; }
.nav-list { display: flex; align-items: center; list-style: none; margin: 0; padding: 0; }

.nav-item { position: relative; }
.nav-item > a {
  display: block; padding: 0 18px; height: 72px; line-height: 72px;
  color: rgba(255,255,255,.88); font-size: var(--fs-14); font-weight: 500;
  transition: background var(--t), color var(--t);
}
.nav-item > a:hover,
.nav-item > a.is-active { background: rgba(255,255,255,.14); color: #fff; }

.sub {
  position: absolute; top: 100%; left: 0; min-width: 168px;
  list-style: none; margin: 0; padding: 6px 0; background: #fff;
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: 0 16px 40px rgba(10, 40, 70, .16);
  opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: opacity var(--t), transform var(--t), visibility var(--t);
}
.sub li a { display: block; padding: 9px 18px; font-size: var(--fs-13); color: var(--ink-700); transition: background var(--t), color var(--t); }
.sub li a:hover { background: var(--primary-050); color: var(--primary); }
.has-sub:hover .sub, .has-sub:focus-within .sub { opacity: 1; visibility: visible; transform: none; }

.nav-cta { height: 38px; padding: 0 18px; font-size: var(--fs-13); background: #fff; color: var(--primary); border-radius: var(--radius-sm); }
.nav-cta:hover { background: rgba(255,255,255,.88); color: var(--primary-600); }

.nav-toggle {
  display: none; width: 42px; height: 42px; padding: 0; cursor: pointer;
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.3); border-radius: var(--radius-sm);
}
.nav-toggle span { display: block; width: 18px; height: 1.5px; margin: 4px auto; background: #fff; transition: transform var(--t), opacity var(--t); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 46px; padding: 0 24px; font-size: var(--fs-14); font-weight: 600;
  border: 1px solid transparent; border-radius: var(--radius-sm); cursor: pointer;
  transition: background var(--t), color var(--t), border-color var(--t), transform var(--t);
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-600); color: #fff; transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--ink-900); border-color: rgba(18,32,44,.22); }
.btn-ghost:hover { border-color: var(--ink-900); color: var(--ink-900); }
.btn-sm { height: 38px; padding: 0 16px; font-size: var(--fs-13); }

/* ---------- 通用 ---------- */
.eyebrow { font-size: var(--fs-12); letter-spacing: .16em; text-transform: uppercase; color: var(--primary); margin: 0 0 10px; font-weight: 600; }
.section { padding: 88px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { max-width: 760px; margin-bottom: 44px; }
.section-head.row { max-width: none; display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-desc { color: var(--ink-500); margin: 0; }
.more { font-size: var(--fs-14); white-space: nowrap; }

/* ---------- 首页 banner ---------- */
.hero { position: relative; overflow: hidden; padding: 118px 0 106px; background: #eef4fa; }
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(900px 460px at 76% 16%, rgba(26,111,196,.16), transparent 62%),
    linear-gradient(180deg, #f2f7fc 0%, #e7eff8 100%);
}
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(26,111,196,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26,111,196,.06) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(700px 400px at 72% 34%, #000 20%, transparent 78%);
          mask-image: radial-gradient(700px 400px at 72% 34%, #000 20%, transparent 78%);
}
.hero-inner { position: relative; max-width: 780px; }
.hero h1 { margin-bottom: 20px; }
.hero .lead { font-size: var(--fs-18); color: var(--ink-700); max-width: 640px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 32px; }

/* ---------- 内页头部（蓝底白字 + 面包屑） ---------- */
.page-hero {
  padding: 52px 0 46px;
  background: linear-gradient(105deg, var(--primary-600) 0%, var(--primary) 60%, #2b86d9 100%);
  color: #fff;
}
.page-hero h1 { color: #fff; font-size: clamp(26px, 2.6vw, 36px); margin: 6px 0 12px; }
.page-hero .lead { color: rgba(255,255,255,.82); margin: 0; max-width: 720px; }
.page-hero .eyebrow { color: rgba(255,255,255,.7); }
.page-hero-sm { padding: 28px 0 24px; }

.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: var(--fs-12); color: rgba(255,255,255,.72); margin-bottom: 16px; flex-wrap: wrap; }
.breadcrumb a { color: rgba(255,255,255,.72); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb span:last-child { color: #fff; }

/* ---------- 数字条 ---------- */
.stats { background: var(--bg-dark); color: #dfe7ee; }
.stats-inner { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding-top: 52px; padding-bottom: 52px; }
.stat { border-left: 1px solid rgba(255,255,255,.12); padding-left: 24px; }
.stat:first-child { border-left: 0; padding-left: 0; }
.stat-num { font-family: var(--serif); font-size: clamp(28px, 2.8vw, 42px); color: #fff; line-height: 1; margin-bottom: 10px; font-variant-numeric: tabular-nums; }
.stat-label { font-size: var(--fs-13); color: #96a7b6; }

/* ---------- 宫格与卡片 ---------- */
.grid { display: grid; gap: 22px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 0 0 24px; overflow: hidden;
  transition: border-color var(--t), transform var(--t), box-shadow var(--t);
}
.card:hover { border-color: rgba(26,111,196,.32); transform: translateY(-4px); box-shadow: 0 18px 40px rgba(10,40,70,.08); }
.card-thumb {
  height: 124px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--primary-050), #f7fafd);
  border-bottom: 1px solid var(--line);
}
.card-thumb span { font-family: var(--serif); font-size: 30px; color: rgba(26,111,196,.30); }
.card h3, .card p, .card-link { margin-left: 22px; margin-right: 22px; }
.card h3 { margin-top: 20px; margin-bottom: 8px; font-size: var(--fs-16); }
.card p { font-size: var(--fs-13); color: var(--ink-500); margin-bottom: 14px; }
.card-link { font-size: var(--fs-13); font-weight: 600; }

/* ---------- 双栏 ---------- */
.split { display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.split-media { position: relative; }
.media-block {
  aspect-ratio: 4 / 3; border-radius: var(--radius); border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(26,111,196,.14), rgba(26,111,196,.03)),
    repeating-linear-gradient(45deg, #e9eff6 0 12px, #eff4f9 12px 24px);
}
.media-tag {
  position: absolute; left: 16px; bottom: 16px; padding: 6px 14px;
  background: #fff; border: 1px solid var(--line); border-radius: 999px;
  font-size: var(--fs-12); color: var(--ink-500);
}
.ticks { list-style: none; margin: 20px 0 26px; padding: 0; }
.ticks li { position: relative; padding-left: 26px; margin-bottom: 10px; font-size: var(--fs-14); }
.ticks li::before {
  content: ""; position: absolute; left: 0; top: 8px;
  width: 13px; height: 7px; border-left: 2px solid var(--accent); border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}

/* ---------- 新闻 ---------- */
.post { padding: 24px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; transition: border-color var(--t), transform var(--t); }
.post:hover { border-color: rgba(26,111,196,.32); transform: translateY(-3px); }
.post time { display: block; font-family: var(--serif); font-size: var(--fs-14); color: var(--accent); margin-bottom: 10px; }
.post h3 { font-size: var(--fs-16); margin-bottom: 8px; line-height: 1.5; }
.post h3 a { color: var(--ink-900); }
.post h3 a:hover { color: var(--primary); }
.post p { font-size: var(--fs-13); color: var(--ink-500); margin: 0; }

/* ---------- 分类 Tab ---------- */
.filter-tabs { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 30px; }
.tab {
  height: 40px; padding: 0 18px; font: inherit; font-size: var(--fs-14);
  color: var(--ink-700); background: #fff; border: 1px solid var(--line);
  border-radius: 999px; cursor: pointer;
  transition: color var(--t), border-color var(--t), background var(--t);
}
.tab:hover { border-color: rgba(26,111,196,.4); color: var(--primary); }
.tab.is-active { background: var(--primary); border-color: var(--primary); color: #fff; }

/* ---------- 产品卡 ---------- */
.product-card {
  border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff;
  display: flex; flex-direction: column;
  transition: border-color var(--t), transform var(--t), box-shadow var(--t);
}
.product-card:hover { border-color: rgba(26,111,196,.32); transform: translateY(-4px); box-shadow: 0 18px 40px rgba(10,40,70,.08); }
.product-card[hidden] { display: none; }
.product-thumb {
  height: 150px; display: grid; place-items: center;
  background:
    linear-gradient(135deg, rgba(26,111,196,.10), rgba(26,111,196,.02)),
    repeating-linear-gradient(45deg, #edf2f8 0 10px, #f4f8fb 10px 20px);
  border-bottom: 1px solid var(--line);
}
.product-thumb span { font-family: var(--serif); font-size: 28px; color: rgba(26,111,196,.30); }
.product-body { padding: 20px 22px 24px; flex: 1; display: flex; flex-direction: column; }
.product-body h3 { font-size: var(--fs-16); margin: 0 0 8px; }
.product-body p { font-size: var(--fs-13); color: var(--ink-500); margin: 0 0 14px; flex: 1; }

/* ---------- 新闻列表 ---------- */
.news-layout { display: grid; grid-template-columns: 1fr 300px; gap: 48px; align-items: start; }
.news-item { display: grid; grid-template-columns: 118px 1fr; gap: 24px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.news-item time { font-family: var(--serif); font-size: var(--fs-14); color: var(--accent); padding-top: 4px; }
.news-item h2 { font-size: var(--fs-18); margin: 0 0 8px; line-height: 1.5; }
.news-item h2 a { color: var(--ink-900); }
.news-item h2 a:hover { color: var(--primary); }
.news-item p { font-size: var(--fs-14); color: var(--ink-500); margin: 0; }

.pager { display: flex; gap: 8px; margin-top: 30px; flex-wrap: wrap; }
.pager-item {
  min-width: 40px; height: 40px; padding: 0 14px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  font-size: var(--fs-14); color: var(--ink-700); background: #fff;
  transition: border-color var(--t), color var(--t), background var(--t);
}
.pager-item:hover { border-color: var(--primary); color: var(--primary); }
.pager-item.is-current { background: var(--primary); border-color: var(--primary); color: #fff; }

.news-side { display: grid; gap: 18px; }
.side-block { border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; background: #fff; }
.side-block h3 { font-size: var(--fs-16); margin: 0 0 12px; }
.side-list { list-style: none; margin: 0; padding: 0; }
.side-list li a { display: flex; justify-content: space-between; padding: 10px 0; font-size: var(--fs-14); color: var(--ink-700); border-bottom: 1px solid var(--line); }
.side-list li:last-child a { border-bottom: 0; }
.side-list li a:hover { color: var(--primary); }
.side-list span { color: var(--ink-500); font-family: var(--serif); }
.side-text { font-size: var(--fs-13); color: var(--ink-500); margin: 0 0 14px; }

/* ---------- 文章 ---------- */
.article-wrap { max-width: 820px; margin: 0 auto; }
.article h1 { font-size: clamp(24px, 2.4vw, 32px); margin: 6px 0 12px; }
.article-meta { display: flex; gap: 10px; font-size: var(--fs-13); color: var(--ink-500); margin-bottom: 28px; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.article-lead { font-size: var(--fs-18); color: var(--ink-900); line-height: 1.7; }
.article h2 { font-size: var(--fs-20); margin-top: 34px; }
.article blockquote { margin: 26px 0; padding: 16px 22px; border-left: 3px solid var(--accent); background: var(--bg-alt); color: var(--ink-900); font-size: var(--fs-16); }
.article-nav { display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; margin-top: 42px; padding-top: 22px; border-top: 1px solid var(--line); font-size: var(--fs-14); }

/* ---------- 时间线 ---------- */
.timeline { list-style: none; margin: 0; padding: 0; position: relative; }
.timeline::before { content: ""; position: absolute; left: 76px; top: 10px; bottom: 10px; width: 1px; background: var(--line); }
.timeline li { display: grid; grid-template-columns: 76px 1fr; gap: 26px; padding: 16px 0; position: relative; }
.timeline time { font-family: var(--serif); font-size: var(--fs-20); color: var(--primary); text-align: right; padding-right: 18px; }
.timeline li::before { content: ""; position: absolute; left: 72px; top: 26px; width: 9px; height: 9px; border-radius: 50%; background: #fff; border: 2px solid var(--primary); }
.timeline h3 { font-size: var(--fs-16); margin: 0 0 4px; }
.timeline p { margin: 0; font-size: var(--fs-14); color: var(--ink-500); }

/* ---------- 招聘 ---------- */
.jobs-list { display: grid; gap: 18px; }
.job { border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 28px; background: #fff; transition: border-color var(--t), box-shadow var(--t); }
.job:hover { border-color: rgba(26,111,196,.32); box-shadow: 0 14px 34px rgba(10,40,70,.06); }
.job-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; flex-wrap: wrap; }
.job h2 { font-size: var(--fs-20); margin: 0 0 6px; }
.job-meta { font-size: var(--fs-13); color: var(--ink-500); margin: 0 0 12px; }
.job-pay { font-family: var(--serif); font-size: var(--fs-18); color: var(--primary); white-space: nowrap; }
.job p { font-size: var(--fs-14); margin: 0 0 16px; }

.plain { padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.plain h3 { font-size: var(--fs-16); margin: 0 0 8px; }
.plain p { margin: 0; font-size: var(--fs-13); color: var(--ink-500); }

/* ---------- 联系 ---------- */
.contact-inner { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; }
.contact-list { margin: 24px 0 0; }
.contact-list > div { display: flex; gap: 18px; padding: 13px 0; border-bottom: 1px solid var(--line); }
.contact-list dt { flex: 0 0 76px; color: var(--ink-500); font-size: var(--fs-13); margin: 0; }
.contact-list dd { margin: 0; font-size: var(--fs-14); color: var(--ink-900); }

.map-placeholder {
  margin-top: 24px; height: 210px; border-radius: var(--radius); border: 1px solid var(--line);
  display: grid; place-items: center; color: var(--ink-500); font-size: var(--fs-13);
  background:
    linear-gradient(135deg, rgba(26,111,196,.08), rgba(26,111,196,.02)),
    repeating-linear-gradient(0deg, #edf2f8 0 24px, #f5f8fa 24px 48px);
}

.form {
  display: grid; grid-template-columns: 1fr 1fr; gap: 16px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px;
}
.field { display: flex; flex-direction: column; gap: 8px; }
.field-full { grid-column: 1 / -1; }
.field label { font-size: var(--fs-13); color: var(--ink-500); }
.field input, .field textarea {
  font: inherit; font-size: var(--fs-14); color: var(--ink-900);
  padding: 11px 13px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: #fff;
  transition: border-color var(--t), box-shadow var(--t);
}
.field textarea { min-height: 112px; resize: vertical; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,111,196,.12); }
.field.is-invalid input, .field.is-invalid textarea { border-color: #c0554b; }
.form-actions { flex-direction: row; align-items: center; gap: 14px; }
.form-status { font-size: var(--fs-13); color: var(--ink-500); }
.form-status.err { color: #c0554b; }
.form-status.ok { color: #2e7d54; }

/* ---------- CTA 条 ---------- */
.cta-band { background: var(--bg-dark); padding: 58px 0; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 26px; flex-wrap: wrap; }
.cta-inner h2 { color: #fff; margin: 0 0 8px; }
.cta-inner p { color: #96a7b6; margin: 0; font-size: var(--fs-14); }

/* ---------- 页脚 ---------- */
.site-footer { background: #0b1620; color: #93a4b3; padding: 50px 0 30px; }
.footer-inner { display: grid; grid-template-columns: 1.2fr auto; gap: 26px; align-items: center; }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-brand .brand-mark { background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.2); }
.footer-brand b { color: #fff; font-size: var(--fs-16); }
.footer-brand p { margin: 4px 0 0; font-size: var(--fs-13); }
.footer-nav { display: flex; gap: 22px; flex-wrap: wrap; justify-content: flex-end; }
.footer-nav a { color: #b8c6d2; font-size: var(--fs-13); }
.footer-nav a:hover { color: #fff; }
.footer-legal { grid-column: 1 / -1; margin: 20px 0 0; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.1); font-size: var(--fs-12); color: #6f8091; }

/* ---------- 入场（只用 transition） ---------- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity var(--t-slow), transform var(--t-slow); }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { transition-duration: .01ms !important; }
}

/* ============================================================
   断点：1600 / 1380 / 1024 / 768
   ============================================================ */
@media (max-width: 1600px) { :root { --container: 1440px; } }

@media (max-width: 1380px) {
  :root { --container: 1200px; --gutter: 22px; }
  .section { padding: 74px 0; }
  .split, .contact-inner { gap: 44px; }
}

@media (max-width: 1024px) {
  :root { --container: 100%; --gutter: 20px; }

  .nav {
    position: fixed; inset: 72px 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--primary-600); padding: 6px 0 14px;
    transform: translateY(-10px); opacity: 0; visibility: hidden;
    transition: opacity var(--t), transform var(--t), visibility var(--t);
    max-height: calc(100vh - 72px); overflow-y: auto;
  }
  .nav.is-open { opacity: 1; visibility: visible; transform: none; }
  .nav-list { flex-direction: column; align-items: stretch; }
  .nav-item { border-bottom: 1px solid rgba(255,255,255,.12); }
  .nav-item > a { height: auto; line-height: 1.4; padding: 14px 20px; font-size: var(--fs-15); }
  .nav-item > a:hover, .nav-item > a.is-active { background: rgba(255,255,255,.10); }

  .sub {
    position: static; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border-radius: 0; padding: 0 0 10px 20px; background: transparent;
  }
  .sub li a { color: rgba(255,255,255,.78); padding: 9px 0; }
  .sub li a:hover { background: transparent; color: #fff; }

  .nav-cta { margin: 12px 20px 0; }
  .nav-toggle { display: block; }

  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .split, .contact-inner { grid-template-columns: 1fr; }
  .split-media { order: 2; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); row-gap: 30px; }
  .stat:nth-child(3) { border-left: 0; padding-left: 0; }
  .news-layout { grid-template-columns: 1fr; gap: 34px; }
  .news-side { grid-template-columns: 1fr 1fr; }
  .page-hero { padding: 42px 0 36px; }
  .timeline::before { left: 62px; }
  .timeline li { grid-template-columns: 62px 1fr; gap: 20px; }
  .timeline li::before { left: 58px; }
  .timeline time { padding-right: 12px; font-size: var(--fs-18); }
}

@media (max-width: 768px) {
  :root { --gutter: 18px; --fs-display: 28px; }

  .section { padding: 56px 0; }
  .hero { padding: 76px 0 64px; }
  .hero .lead { font-size: var(--fs-16); }
  .hero-actions .btn { width: 100%; }

  .section-head.row { flex-direction: column; align-items: flex-start; gap: 10px; }
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .stats-inner { grid-template-columns: 1fr; row-gap: 22px; }
  .stat { border-left: 0; padding-left: 0; padding-bottom: 18px; border-bottom: 1px solid rgba(255,255,255,.1); }
  .stat:last-child { border-bottom: 0; padding-bottom: 0; }

  .form { grid-template-columns: 1fr; padding: 20px; }
  .form-actions { flex-direction: column; align-items: flex-start; }

  .news-side { grid-template-columns: 1fr; }
  .news-item { grid-template-columns: 1fr; gap: 6px; padding: 18px 0; }
  .article-nav { flex-direction: column; gap: 10px; }
  .job { padding: 20px; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .cta-inner .btn { width: 100%; }

  .timeline::before, .timeline li::before { display: none; }
  .timeline li { grid-template-columns: 1fr; gap: 4px; }
  .timeline time { text-align: left; padding-right: 0; }

  .footer-inner { grid-template-columns: 1fr; }
  .footer-nav { justify-content: flex-start; }
}

/* ============================================================
   后台数据渲染的部分（site.js 生成）
   ============================================================ */

/* 缩略图：后台传了图就用图；没图或加载失败，退回编号块 */
.product-thumb img, .card-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }

.media-block { overflow: hidden; }
.media-block img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* 二级菜单还没取到数据时，不要留一个空白浮层 */
.nav .sub:empty { display: none; visibility: hidden; }

/* 详情页正文（后台富文本 / 纯文本都走这里） */
.article-body p { font-size: var(--fs-14); line-height: 1.9; color: var(--ink-700); margin: 0 0 16px; }
.article-body h2 { font-size: var(--fs-20); margin: 30px 0 12px; }
.article-body h3 { font-size: var(--fs-18); margin: 24px 0 10px; }
.article-body blockquote { margin: 24px 0; padding: 14px 20px; border-left: 3px solid var(--accent); background: var(--bg-alt); color: var(--ink-900); }
.article-body ul, .article-body ol { margin: 0 0 16px; padding-left: 22px; color: var(--ink-700); font-size: var(--fs-14); line-height: 1.9; }
.article-body img { max-width: 100%; height: auto; border-radius: var(--radius); }

/* 空列表提示 */
.list-empty { padding: 36px 0; text-align: center; color: var(--ink-500); font-size: var(--fs-14); }

/* 隐私政策勾选 */
.field-check { flex-direction: row; align-items: flex-start; gap: 10px; }
.field-check input[type="checkbox"] { width: 16px; height: 16px; margin-top: 2px; flex: none; }
.field-check label { font-size: var(--fs-13); color: var(--ink-500); line-height: 1.6; }
.field-check label a { color: var(--primary); }