/* ============================================================
   Ads4each 九剑科技 · 官网设计系统
   风格：极简高留白 · 轻科技商务风 · 大区块分割
   对标：launcherads + max-world.ai
   ============================================================ */

:root {
  /* 品牌主色 */
  --brand-blue: #2563EB;
  --brand-indigo: #4F46E5;
  --brand-cyan: #0EA5E9;
  --brand-grad: linear-gradient(135deg, #4F46E5 0%, #2563EB 50%, #0EA5E9 100%);

  /* 中性色 */
  --ink-900: #0F172A;
  --ink-800: #1E293B;
  --ink-700: #334155;
  --ink-500: #111827;
  --ink-400: #1F2937;
  --ink-300: #CBD5E1;
  --line: #E2E8F0;
  --bg: #FFFFFF;
  --bg-soft: #F8FAFC;
  --bg-soft-2: #F1F5F9;
  --bg-dark: #0B1120;
  --bg-dark-2: #111A2E;

  /* 字体 */
  --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB",
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;

  /* 圆角与阴影 */
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow: 0 10px 30px -12px rgba(15, 23, 42, 0.12);
  --shadow-lg: 0 24px 60px -20px rgba(15, 23, 42, 0.18);
  --shadow-brand: 0 16px 40px -16px rgba(37, 99, 235, 0.45);

  /* 容器 */
  --container: 1200px;
  --container-narrow: 920px;
  --header-h: 72px;
}

/* ---------- Reset ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  color: var(--ink-700);
  background: var(--bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; transition: color .2s ease; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
::selection { background: rgba(37, 99, 235, .16); color: var(--ink-900); }

/* ---------- 布局容器 ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
.container-narrow { max-width: var(--container-narrow); }
.container-wide { max-width: 1320px; }

/* ---------- 通用排版 ---------- */
.section { padding: 68px 0; position: relative; }
.section--soft { background: var(--bg-soft); }
.section--dark { background: var(--bg-dark); color: #E2E8F0; }

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--brand-blue);
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.25;
  font-weight: 800;
  color: var(--ink-900);
  letter-spacing: -.01em;
}
.section-title.center { text-align: center; }
.section-lead {
  font-size: 17px;
  color: var(--ink-500);
  max-width: 1000px;
  margin-top: 18px;
}
.section-lead.center { margin-left: auto; margin-right: auto; text-align: center; }
.gradient-text {
  background: var(--brand-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--brand-grad);
  color: #fff;
  box-shadow: var(--shadow-brand);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 22px 48px -16px rgba(37,99,235,.6); }
.btn-ghost {
  background: #fff;
  color: var(--ink-800);
  border: 1px solid var(--line);
}
.btn-ghost:hover { border-color: var(--brand-blue); color: var(--brand-blue); transform: translateY(-2px); }
.btn-light {
  background: rgba(255,255,255,.12);
  color: #fff;
  border: 1px solid rgba(255,255,255,.25);
}
.btn-light:hover { background: rgba(255,255,255,.2); transform: translateY(-2px); }
.btn .arrow { transition: transform .2s ease; }
.btn:hover .arrow { transform: translateX(4px); }

/* ---------- 导航 Header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  z-index: 1000;
  background: rgba(255,255,255,.72);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: background .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.site-header.scrolled {
  background: rgba(255,255,255,.92);
  border-bottom-color: var(--line);
  box-shadow: var(--shadow-sm);
}
.site-header.on-dark:not(.scrolled) { background: transparent; border-bottom-color: rgba(255,255,255,.12); }

.nav {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 800; }
.brand .logo-mark { width: 36px; height: 36px; flex: none; }
.brand .logo-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand .logo-cn { font-size: 16px; color: var(--ink-900); letter-spacing: .02em; }
.brand .logo-en { font-size: 11px; font-weight: 700; letter-spacing: .18em; color: var(--brand-blue); }
.site-header.on-dark:not(.scrolled) .brand .logo-cn { color: #fff; }

.nav-menu { display: flex; align-items: center; gap: 4px; }
.nav-item { position: relative; }
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-700);
  border-radius: 10px;
  transition: color .2s ease, background .2s ease;
}
.site-header.on-dark:not(.scrolled) .nav-link { color: rgba(255,255,255,.85); }
.nav-link:hover, .nav-item.open .nav-link { color: var(--brand-blue); background: rgba(37,99,235,.06); }
.nav-item.active > .nav-link { color: var(--brand-blue); font-weight: 600; }
.site-header.on-dark:not(.scrolled) .nav-link:hover { color: #fff; background: rgba(255,255,255,.1); }
.nav-link .caret { width: 9px; height: 9px; transition: transform .2s ease; opacity: .7; }
.nav-item.open .nav-link .caret { transform: rotate(180deg); }

.dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 220px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .2s ease, transform .2s ease, visibility .2s;
}
.nav-item.open .dropdown { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.dropdown a {
  display: block;
  padding: 11px 14px;
  border-radius: 10px;
  color: var(--ink-700);
  font-size: 14.5px;
  transition: background .2s ease, color .2s ease;
}
.dropdown a:hover { background: var(--bg-soft); color: var(--brand-blue); }
.dropdown a .dt { font-weight: 600; color: var(--ink-900); display: block; }
.dropdown a .dd { font-size: 12.5px; color: var(--ink-400); }

.nav-cta { margin-left: 8px; }
.nav-cta .btn { padding: 10px 22px; font-size: 14px; }

.nav-toggle { display: none; width: 42px; height: 42px; border-radius: 10px; align-items: center; justify-content: center; }
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--ink-800); position: relative; transition: .25s; }
.nav-toggle span::before, .nav-toggle span::after { content: ""; position: absolute; left: 0; width: 20px; height: 2px; background: var(--ink-800); transition: .25s; }
.nav-toggle span::before { top: -6px; } .nav-toggle span::after { top: 6px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: calc(var(--header-h) + 68px) 0 84px;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(37,99,235,.10), transparent 60%),
    radial-gradient(900px 500px at 10% 0%, rgba(79,70,229,.10), transparent 55%),
    var(--bg);
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute; inset: 0;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000, transparent 70%);
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000, transparent 70%);
  opacity: .5;
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; text-align: center; max-width: 880px; margin: 0 auto; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 16px; border-radius: 999px;
  background: #fff; border: 1px solid var(--line);
  font-size: 13.5px; color: var(--ink-700); font-weight: 500;
  box-shadow: var(--shadow-sm); margin-bottom: 28px;
}
.hero-badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--brand-blue); box-shadow: 0 0 0 4px rgba(37,99,235,.15); }
.hero h1 {
  font-size: clamp(38px, 6vw, 64px);
  line-height: 1.12;
  font-weight: 850;
  letter-spacing: -.02em;
  color: var(--ink-900);
}
.hero h1 .gradient-text { display: inline-block; }
.hero-sub { font-size: clamp(16px, 2.2vw, 20px); color: var(--ink-500); margin-top: 22px; font-weight: 500; }
.hero-desc { font-size: 16.5px; color: var(--ink-500); margin: 22px auto 0; max-width: 720px; }
.hero-actions { margin-top: 38px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero-trust {
  margin-top: 52px; display: flex; gap: 28px; justify-content: center; flex-wrap: wrap;
  font-size: 13.5px; color: #94A3B8; /* 特意弱化的装饰性文案，保持浅灰 */
}
.hero-trust span { display: inline-flex; align-items: center; gap: 8px; }
.hero-trust .tick { color: var(--brand-blue); }

/* ---------- 双栏能力区 ---------- */
.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 64px; align-items: center; }
.split-text .section-title { margin-bottom: 22px; text-align: left; }
.split-text p { color: var(--ink-500); font-size: 16.5px; }
.split-visual {
  position: relative; border-radius: var(--radius-lg);
  background: linear-gradient(160deg, #0B1120, #1E293B);
  padding: 38px; min-height: 360px;
  box-shadow: var(--shadow-lg); overflow: hidden;
}
.split-visual::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(600px 300px at 100% 0%, rgba(37,99,235,.35), transparent 60%);
}
.cap-grid { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.cap-card {
  background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius); padding: 20px; backdrop-filter: blur(4px);
  transition: transform .25s ease, background .25s ease, border-color .25s ease;
}
.cap-card:hover { transform: translateY(-4px); background: rgba(255,255,255,.09); border-color: rgba(37,99,235,.5); }
.cap-card .cap-ico { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; background: rgba(37,99,235,.18); margin-bottom: 14px; }
.cap-card .cap-ico svg { width: 22px; height: 22px; stroke: #7DD3FC; }
.cap-card h4 { color: #fff; font-size: 15.5px; font-weight: 700; margin-bottom: 6px; }
.cap-card p { color: #94A3B8; font-size: 13px; line-height: 1.6; }

/* ---------- 业务矩阵双卡 ---------- */
.biz-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-top: 8px; }
.biz-card {
  position: relative; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 40px; overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.biz-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: var(--brand-grad); transform: scaleX(0); transform-origin: left;
  transition: transform .35s ease;
}
.biz-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.biz-card:hover::before { transform: scaleX(1); }
.biz-ico {
  width: 56px; height: 56px; border-radius: 16px; display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(79,70,229,.12), rgba(14,165,233,.12));
  margin-bottom: 22px;
}
.biz-ico svg { width: 28px; height: 28px; stroke: var(--brand-blue); }
.biz-card h3 { font-size: 22px; color: var(--ink-900); font-weight: 800; margin-bottom: 14px; }
.biz-card p { color: var(--ink-500); font-size: 15.5px; }
.biz-card .btn { margin-top: 26px; }

/* ---------- 数据看板 ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat {
  text-align: center; padding: 28px 18px;
  border-radius: var(--radius); border: 1px solid var(--line); background: #fff;
  transition: transform .25s ease, box-shadow .25s ease;
}
.stat:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.stat .num { font-size: clamp(30px, 4vw, 44px); font-weight: 850; color: var(--ink-900); letter-spacing: -.02em; line-height: 1.1; }
.stat .num .gradient-text { font-weight: 850; }
.stat .label { margin-top: 10px; font-size: 14.5px; color: var(--ink-500); }
.dark-stats .stat { background: rgba(255,255,255,.04); border-color: rgba(255,255,255,.1); }
.dark-stats .stat .num { color: #fff; }
.dark-stats .stat .label { color: #94A3B8; }

.section-note { margin-top: 40px; text-align: center; color: var(--ink-500); font-size: 15px; max-width: 760px; margin-left: auto; margin-right: auto; }
.section--dark .section-note { color: #94A3B8; }

/* ---------- 案例轮播 ---------- */
.cases { position: relative; margin-top: 48px; }
.cases-track { display: flex; gap: 24px; transition: transform .5s cubic-bezier(.4,0,.2,1); }
.case-card {
  flex: 0 0 calc((100% - 48px) / 3);
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 34px; min-height: 280px; display: flex; flex-direction: column;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s;
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.case-tag {
  align-self: flex-start; font-size: 12.5px; font-weight: 700; letter-spacing: .04em;
  color: var(--brand-blue); background: rgba(37,99,235,.08);
  padding: 6px 12px; border-radius: 999px; margin-bottom: 18px;
}
.case-card h4 { font-size: 18px; color: var(--ink-900); font-weight: 800; margin-bottom: 12px; }
.case-card p { color: var(--ink-500); font-size: 15px; flex: 1; }
.case-metrics { display: flex; gap: 18px; margin-top: 20px; padding-top: 18px; border-top: 1px dashed var(--line); }
.case-metrics .m b { display: block; font-size: 20px; color: var(--brand-blue); font-weight: 800; }
.case-metrics .m span { font-size: 12px; color: var(--ink-400); }
.cases-nav { display: flex; gap: 10px; justify-content: center; margin-top: 34px; }
.cases-nav button {
  width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--line);
  background: #fff; display: grid; place-items: center; color: var(--ink-700);
  transition: all .2s ease;
}
.cases-nav button:hover { border-color: var(--brand-blue); color: var(--brand-blue); }
.cases-nav .dots { display: flex; gap: 8px; align-items: center; }
.cases-nav .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ink-300); transition: all .25s ease; }
.cases-nav .dot.active { width: 26px; border-radius: 999px; background: var(--brand-blue); }

/* ---------- 收尾 CTA ---------- */
.cta-band {
  position: relative; overflow: hidden;
  background: var(--brand-grad);
  border-radius: var(--radius-lg);
  padding: 64px 56px;
  text-align: center; color: #fff;
}
.cta-band::before {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,.08) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.08) 1px, transparent 1px);
  background-size: 40px 40px; opacity: .6;
}
.cta-band > * { position: relative; }
.cta-band h2 { font-size: clamp(26px, 3.4vw, 38px); font-weight: 850; letter-spacing: -.01em; }
.cta-band p { margin: 16px auto 30px; max-width: 620px; font-size: 17px; color: rgba(255,255,255,.92); }
.cta-band .btn-light { background: rgba(255,255,255,.16); border-color: rgba(255,255,255,.4); }

/* ---------- 服务详情页 Hero ---------- */
.page-hero {
  position: relative; padding: calc(var(--header-h) + 56px) 0 56px;
  background: radial-gradient(900px 500px at 85% -20%, rgba(37,99,235,.12), transparent 60%),
              radial-gradient(700px 400px at 0% 0%, rgba(79,70,229,.10), transparent 55%),
              var(--bg-soft);
  border-bottom: 1px solid var(--line);
}
.page-hero .eyebrow { margin-bottom: 14px; }
.page-hero h1 { font-size: clamp(32px, 4.6vw, 52px); font-weight: 850; color: var(--ink-900); letter-spacing: -.02em; line-height: 1.18; max-width: 900px; }
.page-hero .sub { font-size: clamp(16px, 2vw, 20px); color: var(--brand-blue); font-weight: 600; margin-top: 16px; }
.page-hero .lead { font-size: 17px; color: var(--ink-500); margin-top: 22px; max-width: 800px; }

/* ---------- 服务列表 ---------- */
.svc-list { display: grid; gap: 18px; margin-top: 8px; }
.svc-item {
  display: grid; grid-template-columns: 64px 1fr; gap: 24px; align-items: start;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 30px; transition: border-color .25s ease, box-shadow .25s ease, transform .25s ease;
}
.svc-item:hover { border-color: transparent; box-shadow: var(--shadow); transform: translateX(4px); }
.svc-num {
  width: 64px; height: 64px; border-radius: 16px; display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(79,70,229,.12), rgba(14,165,233,.12));
  font-size: 22px; font-weight: 850; color: var(--brand-blue);
}
.svc-item h4 { font-size: 18px; color: var(--ink-900); font-weight: 800; margin-bottom: 8px; }
.svc-item p { color: var(--ink-500); font-size: 15.5px; }

.value-pills { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.value-pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; border-radius: 999px; background: var(--bg-soft);
  border: 1px solid var(--line); font-size: 14.5px; font-weight: 600; color: var(--ink-700);
}
.value-pill svg { width: 16px; height: 16px; stroke: var(--brand-blue); }

/* ---------- 关于我们 ---------- */
.timeline { position: relative; margin-top: 50px; padding-left: 8px; }
.timeline::before { content: ""; position: absolute; left: 11px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(var(--brand-blue), transparent); }
.tl-item { position: relative; padding: 0 0 32px 44px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item .tl-dot { position: absolute; left: 4px; top: 4px; width: 16px; height: 16px; border-radius: 50%; background: #fff; border: 3px solid var(--brand-blue); }
.tl-item h4 { font-size: 17px; color: var(--ink-900); font-weight: 800; }
.tl-item p { color: var(--ink-500); font-size: 15px; margin-top: 4px; }

.value-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 40px; }
.value-card { text-align: center; padding: 28px 18px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.value-card .vc-ico { width: 46px; height: 46px; margin: 0 auto 14px; border-radius: 12px; display: grid; place-items: center; background: rgba(37,99,235,.08); }
.value-card .vc-ico svg { width: 24px; height: 24px; stroke: var(--brand-blue); }
.value-card h4 { color: var(--ink-900); font-weight: 800; font-size: 16px; }

/* ---------- 内容专栏 / 活动峰会 卡片 ---------- */
.grid-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 8px; }
.post-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; transition: transform .3s ease, box-shadow .3s ease; display: flex; flex-direction: column; }
.post-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.post-thumb { height: 168px; position: relative; overflow: hidden; background: linear-gradient(135deg, #1E293B, #0B1120); }
a.post-thumb { text-decoration: none; color: inherit; }
.post-thumb[data-read] { cursor: pointer; }
.post-thumb .pt-pattern { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px); background-size: 28px 28px; }
.post-thumb .pt-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.post-thumb .pt-cat { position: absolute; left: 18px; top: 18px; font-size: 12px; font-weight: 700; color: #fff; background: rgba(37,99,235,.7); padding: 5px 12px; border-radius: 999px; }
.post-body { padding: 22px 24px 26px; flex: 1; display: flex; flex-direction: column; }
.post-body .pt-date { font-size: 12.5px; color: var(--ink-400); margin-bottom: 10px; }
.post-body h4 { font-size: 17px; color: var(--ink-900); font-weight: 800; line-height: 1.4; }
.post-body p { color: var(--ink-500); font-size: 14px; margin-top: 10px; flex: 1; }
.post-body .pt-more { margin-top: 16px; font-size: 14px; font-weight: 600; color: var(--brand-blue); display: inline-flex; align-items: center; gap: 6px; }
.cat-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }
.cat-chip { padding: 9px 18px; border-radius: 999px; border: 1px solid var(--line); background: #fff; font-size: 14px; font-weight: 600; color: var(--ink-700); }
.cat-chip.active { background: var(--brand-grad); color: #fff; border-color: transparent; }

/* ---------- 联系我们 ---------- */
.contact-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: start; }
.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 40px; box-shadow: var(--shadow-sm); }
.form-card h3 { font-size: 22px; color: var(--ink-900); font-weight: 800; margin-bottom: 6px; }
.form-card .fh-sub { color: var(--ink-400); font-size: 14.5px; margin-bottom: 26px; }
.field { margin-bottom: 18px; }
.field.row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field label { display: block; font-size: 14px; font-weight: 600; color: var(--ink-800); margin-bottom: 8px; }
.field label .req { color: #EF4444; margin-left: 2px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 13px 15px; border: 1px solid var(--line); border-radius: var(--radius-sm);
  font-family: inherit; font-size: 15px; color: var(--ink-800); background: var(--bg-soft);
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--brand-blue); background: #fff;
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
.field textarea { resize: vertical; min-height: 120px; }
/* 图形验证码弹窗 */
.captcha-modal { position: fixed; inset: 0; z-index: 1000; display: none; align-items: center; justify-content: center; }
.captcha-modal.show { display: flex; }
.captcha-modal-mask { position: absolute; inset: 0; background: rgba(15,23,42,.5); }
.captcha-modal-card { position: relative; width: 360px; max-width: calc(100vw - 32px); background: #fff; border-radius: var(--radius-lg); padding: 28px 24px; box-shadow: var(--shadow-lg); }
.captcha-modal-close { position: absolute; top: 12px; right: 12px; width: 32px; height: 32px; border: 0; background: transparent; font-size: 24px; line-height: 1; color: var(--ink-400); cursor: pointer; }
.captcha-modal-card h4 { font-size: 18px; color: var(--ink-900); font-weight: 800; }
.captcha-modal-sub { font-size: 13px; color: var(--ink-500); margin-top: 6px; }
.captcha-modal-row { display: flex; align-items: center; gap: 10px; margin-top: 18px; }
.captcha-modal-row input { flex: 1 1 0; min-width: 0; width: auto; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--radius-sm); font-family: inherit; font-size: 15px; color: var(--ink-800); background: var(--bg-soft); }
.captcha-modal-row input:focus { outline: none; border-color: var(--brand-blue); background: #fff; box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
.captcha-img { flex-shrink: 0; display: inline-flex; width: 120px; height: 40px; border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; background: #f2f5f9; cursor: pointer; }
.captcha-img svg { display: block; width: 120px; height: 40px; }
.captcha-modal-refresh { font-size: 12.5px; color: var(--ink-500); margin-top: 10px; }
.captcha-modal-refresh button { border: 0; background: transparent; color: var(--brand-blue); font-size: 12.5px; cursor: pointer; padding: 0; }
.captcha-modal-error { min-height: 18px; margin-top: 8px; font-size: 13px; color: #EF4444; }
.captcha-modal-actions { display: flex; gap: 10px; margin-top: 16px; }
.captcha-btn { flex: 1; padding: 12px 16px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 600; cursor: pointer; }
.captcha-btn-ghost { border: 1px solid var(--line); background: #fff; color: var(--ink-700); }
.captcha-btn-primary { border: 1px solid transparent; background: var(--brand-grad); color: #fff; }
.form-success { display: none; text-align: center; padding: 30px 10px; }
.form-success.show { display: block; }
.form-success .ok-ico { width: 64px; height: 64px; margin: 0 auto 18px; border-radius: 50%; background: rgba(16,185,129,.12); display: grid; place-items: center; }
.form-success .ok-ico svg { width: 32px; height: 32px; stroke: #10B981; }

.info-card { background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 36px; }
.info-card h3 { font-size: 20px; color: var(--ink-900); font-weight: 800; margin-bottom: 22px; }
.info-item { display: flex; gap: 14px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.info-item:last-child { border-bottom: none; }
.info-item .ii-ico { width: 40px; height: 40px; border-radius: 12px; flex: none; background: #fff; border: 1px solid var(--line); display: grid; place-items: center; }
.info-item .ii-ico svg { width: 20px; height: 20px; stroke: var(--brand-blue); }
.info-item .ii-label { font-size: 13px; color: var(--ink-400); }
.info-item .ii-val { font-size: 15.5px; color: var(--ink-900); font-weight: 600; word-break: break-all; }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--bg-dark); color: #94A3B8; padding: 70px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; }
.footer-brand .brand .logo-cn { color: #fff; }
.footer-brand .brand .logo-en { color: #7DD3FC; }
.footer-brand p { margin-top: 18px; font-size: 14px; line-height: 1.8; max-width: 320px; color: #64748B; }
.footer-col h5 { color: #fff; font-size: 14.5px; font-weight: 700; margin-bottom: 18px; letter-spacing: .02em; }
.footer-col a { display: block; font-size: 14px; color: #94A3B8; padding: 7px 0; transition: color .2s ease, padding-left .2s ease; }
.footer-col a:hover { color: #fff; padding-left: 4px; }
.footer-bottom {
  margin-top: 56px; padding-top: 26px; border-top: 1px solid rgba(255,255,255,.08);
  display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap;
  font-size: 13px; color: #64748B;
}
.footer-legal { display: flex; gap: 18px; flex-wrap: wrap; }
.footer-legal a:hover { color: #fff; }

/* ---------- 工具类 ---------- */
.text-center { text-align: center; }
.mt-8 { margin-top: 8px; } .mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; }
.mb-40 { margin-bottom: 40px; }
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
  .split { grid-template-columns: 1fr; gap: 40px; }
  .biz-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .value-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-cards { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .case-card { flex: 0 0 calc((100% - 24px) / 2); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
}
@media (max-width: 720px) {
  .section { padding: 72px 0; }
  .nav-menu, .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .mobile-menu { display: block; }
  .grid-cards { grid-template-columns: 1fr; }
  .case-card { flex: 0 0 100%; }
  .field.row { grid-template-columns: 1fr; }
  .cta-band { padding: 44px 26px; }
  .form-card, .info-card { padding: 28px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .value-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .stats { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; justify-content: center; }
}

/* 移动端抽屉 */
.mobile-menu {
  display: none; position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0;
  background: #fff; z-index: 999; padding: 24px; overflow-y: auto;
  transform: translateY(-8px); opacity: 0; pointer-events: none; transition: .25s;
}
.mobile-menu.open { transform: none; opacity: 1; pointer-events: auto; }
.mobile-menu a { display: block; padding: 15px 8px; font-size: 17px; font-weight: 600; color: var(--ink-800); border-bottom: 1px solid var(--line); }
.mobile-menu .m-sub { padding-left: 22px; font-size: 15px; color: var(--ink-500); font-weight: 500; }
.mobile-menu .m-cta { margin-top: 22px; }
.mobile-menu .m-cta .btn { width: 100%; justify-content: center; }

/* ============================================================
   优化版新增组件
   ============================================================ */

/* ---------- 品牌 Logo（真实字标） ---------- */
.brand .logo-img { height: 32px; width: auto; display: block; }
.brand .logo-img--light { display: none; }
/* 深色 Hero 上未滚动的导航：切白字版 */
.site-header.on-dark:not(.scrolled) .brand .logo-img--dark { display: none; }
.site-header.on-dark:not(.scrolled) .brand .logo-img--light { display: block; }
.footer-brand .brand .logo-img--dark { display: none; }
.footer-brand .brand .logo-img--light {
  display: block;
  height: 40px;
  background: none; padding: 0; border-radius: 0;
}
.f-mail {
  display: inline-block;
  margin-top: 14px;
  font-size: 14px;
  font-weight: 600;
  color: #7DD3FC;
}
.f-mail:hover { color: #fff; }

/* ---------- Beetles 系统可视化面板 ---------- */
.beetles-panel {
  position: relative; z-index: 1;
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg);
  padding: 20px;
  backdrop-filter: blur(6px);
}
.bp-bar { display: flex; align-items: center; gap: 12px; padding-bottom: 16px; border-bottom: 1px solid rgba(255,255,255,.08); }
.bp-dots { display: flex; gap: 6px; }
.bp-dots i { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,.16); }
.bp-dots i:first-child { background: #F97316; }
.bp-dots i:nth-child(2) { background: rgba(255,255,255,.28); }
.bp-title { font-size: 13.5px; font-weight: 700; color: #E2E8F0; letter-spacing: .02em; }
.bp-live {
  margin-left: auto; display: inline-flex; align-items: center; gap: 6px;
  font-size: 11px; font-weight: 800; letter-spacing: .14em; color: #34D399;
}
.bp-live i { width: 7px; height: 7px; border-radius: 50%; background: #34D399; box-shadow: 0 0 0 4px rgba(52,211,153,.18); animation: bpPulse 2s infinite; }
@keyframes bpPulse { 0%,100% { box-shadow: 0 0 0 3px rgba(52,211,153,.18);} 50% { box-shadow: 0 0 0 6px rgba(52,211,153,.05);} }

.bp-kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 16px; }
.bp-kpi {
  display: flex; align-items: center; gap: 10px;
  background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.09);
  border-radius: var(--radius-sm); padding: 12px;
  transition: background .25s ease, border-color .25s ease, transform .25s ease;
}
.bp-kpi:hover { background: rgba(37,99,235,.16); border-color: rgba(37,99,235,.5); transform: translateY(-3px); }
.bp-kpi svg { width: 26px; height: 26px; flex: none; stroke: #7DD3FC; }
.bp-kpi b { display: block; font-size: 13.5px; color: #fff; font-weight: 700; line-height: 1.3; }
.bp-kpi span { font-size: 11.5px; color: #94A3B8; }

.bp-chart { margin-top: 16px; background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.09); border-radius: var(--radius-sm); padding: 16px 16px 12px; }
.bp-chart-head { display: flex; justify-content: space-between; align-items: center; font-size: 12.5px; color: #94A3B8; margin-bottom: 14px; }
.bp-up { color: #34D399; font-weight: 700; }
.bp-bars { display: flex; align-items: flex-end; gap: 7px; height: 92px; }
.bp-bars i {
  flex: 1; height: var(--h); border-radius: 4px 4px 2px 2px;
  background: linear-gradient(180deg, #0EA5E9, rgba(37,99,235,.35));
  opacity: .85;
  animation: bpGrow 1.2s cubic-bezier(.4,0,.2,1) backwards;
}
.bp-bars i:nth-child(3n) { background: linear-gradient(180deg, #F97316, rgba(249,115,22,.3)); }
.bp-bars i:last-child { opacity: 1; box-shadow: 0 0 18px rgba(14,165,233,.5); }
@keyframes bpGrow { from { height: 4px; } }

.bp-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.bp-chips span {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 14px; border-radius: 999px;
  background: rgba(255,255,255,.05); border: 1px solid rgba(255,255,255,.12);
  font-size: 12.5px; font-weight: 600; color: #CBD5E1;
}
.bp-chips span b { color: #F97316; font-weight: 800; }

/* ---------- 数据看板 5 列 ---------- */
.stats.cols-5 { grid-template-columns: repeat(5, 1fr); gap: 18px; }
.stats.cols-5 .stat { padding: 26px 12px; }
.stats.cols-5 .stat .num { font-size: clamp(26px, 3vw, 36px); }
.stats.cols-5 .stat .label { font-size: 13.5px; }

/* ---------- 发展历程年份徽标 ---------- */
.tl-year {
  display: inline-block;
  font-size: 12.5px; font-weight: 800; letter-spacing: .06em;
  color: var(--brand-blue); background: rgba(37,99,235,.08);
  padding: 3px 12px; border-radius: 999px; margin-bottom: 8px;
}

/* ---------- 价值观卡片描述 ---------- */
.value-card p { margin-top: 10px; font-size: 13.5px; color: var(--ink-500); line-height: 1.65; }

/* ---------- 使命 / 愿景 ---------- */
.mv-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 24px; }
.mv-card {
  position: relative; overflow: hidden;
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 36px 40px;
}
.mv-card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: var(--brand-grad);
}
.mv-card h3 { font-size: 21px; color: var(--ink-900); font-weight: 800; margin-bottom: 10px; }
.mv-card p { font-size: 16.5px; color: var(--ink-700); font-weight: 500; line-height: 1.75; }

/* ---------- 四城布局 ---------- */
.city-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-top: 44px; }
.city-card {
  position: relative; text-align: center;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 36px 24px 30px;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.city-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.city-ico {
  width: 66px; height: 66px; margin: 0 auto 18px; border-radius: 20px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(79,70,229,.12), rgba(14,165,233,.14));
  transition: transform .3s ease;
}
.city-card:hover .city-ico { transform: scale(1.08) rotate(-3deg); }
.city-ico svg { width: 34px; height: 34px; stroke: var(--brand-blue); }
.city-card h4 { font-size: 19px; color: var(--ink-900); font-weight: 800; display: inline-block; }
.city-tag {
  display: block; width: fit-content; margin: 10px auto 0;
  font-size: 12px; font-weight: 700; letter-spacing: .05em;
  color: var(--brand-blue); background: rgba(37,99,235,.08);
  padding: 4px 12px; border-radius: 999px;
}
.city-card p { margin-top: 14px; font-size: 13.5px; color: var(--ink-500); line-height: 1.7; }

/* ---------- 新增响应式 ---------- */
@media (max-width: 980px) {
  .stats.cols-5 { grid-template-columns: repeat(3, 1fr); }
  .city-grid { grid-template-columns: repeat(2, 1fr); }
  .mv-grid { grid-template-columns: 1fr; }
  .bp-kpis { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 720px) {
  .brand .logo-img { height: 28px; }
  .stats.cols-5 { grid-template-columns: repeat(2, 1fr); }
  .bp-kpis { grid-template-columns: 1fr 1fr; }
  .bp-kpi:last-child { grid-column: 1 / -1; }
  .split-visual { padding: 20px; min-height: 0; }
  .beetles-panel { padding: 14px; }
  .bp-bars { height: 70px; gap: 4px; }
  .mv-card { padding: 28px 24px; }
}
@media (max-width: 480px) {
  .city-grid { grid-template-columns: 1fr; }
  .stats.cols-5 { grid-template-columns: 1fr; }
}

/* ============================================================
   本轮优化新增组件（视频区 / 横向时间线 / 联系页布局）
   ============================================================ */

/* ---------- 关于我们首屏：左文 + 右视频 ---------- */
.about-intro {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 56px;
  align-items: center;
}
.about-intro-text .eyebrow { margin-bottom: 14px; }
.about-intro-text h1 { font-size: clamp(30px, 4.4vw, 50px); font-weight: 850; color: var(--ink-900); letter-spacing: -.02em; line-height: 1.18; }
.about-intro-text .sub { font-size: clamp(16px, 2vw, 20px); color: var(--brand-blue); font-weight: 600; margin-top: 16px; }
.about-intro-text .lead { font-size: 16.5px; color: var(--ink-500); margin-top: 22px; }
.about-intro-video {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--line);
  background: var(--bg-dark);
  aspect-ratio: 16 / 10;
}
.intro-video { width: 100%; height: 100%; object-fit: cover; display: block; }
/* 隐藏原生 video 控件里的下载按钮（Chromium 私有伪元素兜底，覆盖正文内动态插入的视频） */
video::-internal-media-controls-download-button { display: none !important; }

/* ---------- 发展历程：横向时间线 ---------- */
.tl-horizontal {
  position: relative;
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  column-gap: 16px;
  margin-top: 64px;
}
.tl-line {
  position: absolute;
  left: 2%; right: 2%; top: 50%;
  height: 4px;
  background: linear-gradient(90deg, #10B981 0 25%, #F59E0B 25% 50%, #8B5CF6 50% 75%, #EC4899 75% 100%);
  transform: translateY(-50%);
  border-radius: 999px;
  z-index: 0;
}
.tl-node {
  position: relative;
  display: grid;
  grid-template-rows: 1fr auto 1fr;
  align-items: center;
  z-index: 1;
}
.tl-node .tl-dot {
  grid-row: 2;
  width: 15px; height: 15px;
  border-radius: 3px;
  background: var(--tl-c, var(--brand-blue));
  border: none;
  margin: 0 auto;
  box-shadow: 0 0 0 4px #fff, 0 0 14px var(--tl-c, rgba(37,99,235,.5));
  transition: transform .25s ease, box-shadow .25s ease;
}
.tl-node:hover .tl-dot { transform: scale(1.3) rotate(45deg); box-shadow: 0 0 0 4px #fff, 0 0 20px var(--tl-c, rgba(37,99,235,.6)); }
.tl-node .tl-card { padding: 0 6px; }
.tl-node:nth-child(even) .tl-card { grid-row: 1; text-align: right; align-self: end; padding-bottom: 20px; }
.tl-node:nth-child(odd) .tl-card { grid-row: 3; text-align: left; align-self: start; padding-top: 20px; }
.tl-card .tl-year {
  display: block;
  font-size: 19px; font-weight: 800; letter-spacing: .01em;
  line-height: 1.1;
  color: var(--tl-c, var(--brand-blue));
  background: none;
  padding: 0; border-radius: 0; margin-bottom: 6px;
}
.tl-card h4 { font-size: 14.5px; color: var(--ink-900); font-weight: 800; }
.tl-card p { font-size: 12px; color: var(--ink-500); margin-top: 5px; line-height: 1.5; }

/* ---------- 联系页：表单居中 + 联系方式置底 ---------- */
.contact-form-wrap { display: flex; justify-content: center; }
.contact-form-wrap .form-card { width: 100%; max-width: 720px; }

/* 联系页：表单置顶，下方左文案右联系方式 */
.contact-split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.cs-intro h1 { font-size: clamp(30px, 4vw, 46px); font-weight: 850; color: var(--ink-900); letter-spacing: -.02em; line-height: 1.2; }
.cs-intro .sub { font-size: clamp(16px, 2vw, 19px); color: var(--brand-blue); font-weight: 600; margin-top: 14px; }
.cs-intro .lead { font-size: 16.5px; color: var(--ink-500); margin-top: 18px; line-height: 1.85; max-width: 560px; }
.cs-info .cib-title { text-align: left; margin-bottom: 8px; font-size: 22px; color: var(--ink-900); font-weight: 800; }
.cs-info .info-item { display: flex; gap: 14px; padding: 18px 0; border-bottom: 1px solid var(--line); align-items: center; }
.cs-info .info-item:last-child { border-bottom: none; }
@media (max-width: 720px) {
  .contact-split { grid-template-columns: 1fr; gap: 36px; }
}

.contact-info-bottom { margin-top: 56px; }
.contact-info-bottom .cib-title { font-size: 20px; color: var(--ink-900); font-weight: 800; text-align: center; margin-bottom: 26px; }
.cib-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.cib-grid .info-item {
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}
.cib-grid .info-item { border-bottom: 1px solid var(--line); }
.cib-grid .info-item .ii-val { word-break: normal; }

/* ---------- 本轮优化响应式 ---------- */
@media (max-width: 1000px) {
  .about-intro { grid-template-columns: 1fr; gap: 36px; }
  .cib-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 900px) {
  .tl-horizontal { display: block; margin-top: 44px; }
  .tl-line { display: none; }
  .tl-node {
    display: grid;
    grid-template-columns: 26px 1fr;
    grid-template-rows: auto;
    gap: 16px;
    align-items: start;
    padding: 0 0 28px 0;
  }
  .tl-node .tl-dot { grid-row: auto; margin: 5px 0 0 4px; transform: none; }
  .tl-node .tl-card,
  .tl-node:nth-child(even) .tl-card,
  .tl-node:nth-child(odd) .tl-card {
    grid-row: auto;
    text-align: left;
    align-self: auto;
    padding: 0;
  }
}
@media (max-width: 560px) {
  .cib-grid { grid-template-columns: 1fr; }
  .about-intro-video { aspect-ratio: 16 / 11; }
}


/* ---------- Hero 官方资质徽章（强化版） ---------- */
.hero-badges { margin-top: 28px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; max-width: 800px; margin-left: auto; margin-right: auto; }
.hbadge {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  flex: 1 1 0; min-width: 0; white-space: nowrap;
  padding: 13px 26px; border-radius: 999px;
  font-size: clamp(15px, 1.6vw, 17.5px); font-weight: 800; letter-spacing: .01em;
  transition: transform .25s ease, box-shadow .25s ease;
}
.hbadge:hover { transform: translateY(-2px); }
.hbadge svg { flex: 0 0 auto; }
.hbadge-solid {
  color: #fff;
  background: linear-gradient(90deg, #2563EB, #4F46E5 55%, #7C3AED);
  box-shadow: 0 10px 28px rgba(37, 99, 235, .35);
}
.hbadge-line {
  color: var(--ink-900);
  background: #fff;
  border: 2px solid rgba(37, 99, 235, .45);
  box-shadow: 0 10px 28px rgba(15, 23, 42, .10);
}
@media (max-width: 640px) {
  .hbadge { padding: 11px 18px; font-size: 14px; }
}

/* ---------- 关于页 · 公司资质 ---------- */
.cert-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; max-width: 920px; margin: 36px auto 0; }
/* 首页官方资质授权：竖向压小，适配笔记本一屏 */
.home-certs { gap: 24px; margin: 20px auto 0; }
.home-certs .cert-card > a { width: fit-content; margin: 0 auto; padding: 12px; }
.home-certs .cert-card > a::before { inset: 10px; }
.home-certs .cert-card > a img { height: 300px; width: auto; max-width: none; }
.section--compact { padding: 40px 0; }
.section--compact .section-note { margin-top: 20px; }
.cert-card {
  background: #fff; border-radius: 6px;
  overflow: visible; box-shadow: var(--shadow);
  transition: transform .25s ease, box-shadow .25s ease;
}
.cert-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.cert-card > a {
  position: relative; display: block; padding: 16px; border-radius: 10px;
  border: 1px solid rgba(158, 174, 190, .55);
  background:
    linear-gradient(115deg, rgba(255,255,255,0) 38%, rgba(255,255,255,.85) 47%, rgba(255,255,255,0) 56%),
    linear-gradient(155deg,
      #e9eef4 0%, #c3cfdb 22%, #f6fafd 44%,
      #b9c6d4 64%, #eef3f8 84%, #cdd8e3 100%);
  box-shadow:
    inset 0 2px 3px rgba(255,255,255,.95),
    inset 2px 0 3px rgba(255,255,255,.7),
    inset 0 -3px 5px rgba(138,152,168,.42),
    inset -2px 0 4px rgba(148,163,178,.38),
    0 16px 34px rgba(25,35,55,.2);
}
.cert-card > a::before {
  content: ""; position: absolute; inset: 13px; pointer-events: none;
  border: 1px solid rgba(255,255,255,.9);
  box-shadow: 0 1px 2px rgba(115,130,148,.4), inset 0 0 6px rgba(255,255,255,.5);
}
.cert-card > a img {
  display: block; width: 100%; height: auto;
  box-shadow: 0 2px 8px rgba(70,85,105,.25);
}
.cert-body { padding: 22px 26px 26px; border-top: 1px solid var(--line); }
.cert-body h4 { font-size: 17px; font-weight: 800; color: var(--ink-900); display: flex; align-items: center; gap: 9px; }
.cert-body h4 .cert-ico { width: 26px; height: 26px; border-radius: 8px; background: linear-gradient(135deg, #2563EB, #22D3EE); display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto; }
.cert-body h4 .cert-ico svg { width: 15px; height: 15px; }
.cert-body p { margin-top: 10px; font-size: 14px; line-height: 1.75; color: var(--ink-500); }
@media (max-width: 820px) { .cert-grid { grid-template-columns: 1fr; } }

/* ============================================================
   加入我们（招聘）页面
   对标 Mobvista 社会招聘页排版 · 顶部精简
   ============================================================ */

/* ---------- 精简 Hero ---------- */
.jobs-hero {
  position: relative;
  margin-top: var(--header-h);
  padding: 42px 0 52px;
  text-align: center;
  /* 与「内容专栏」page-hero 同款光斑背景，尺寸按头部高度缩小，色调统一为淡蓝 */
  background:
    radial-gradient(620px 340px at 85% -20%, rgba(37,99,235,.12), transparent 60%),
    radial-gradient(480px 280px at 0% 0%, rgba(37,99,235,.10), transparent 55%),
    linear-gradient(180deg, var(--bg-soft) 0%, var(--bg-soft) 45%, #ffffff 100%);
  overflow: hidden;
}
.jobs-hero h1 { font-size: clamp(30px, 4.4vw, 46px); font-weight: 850; color: var(--ink-900); letter-spacing: -.02em; }
.jobs-hero .jh-sub { margin-top: 12px; font-size: 16px; color: var(--ink-500); }
.jobs-hero .jh-stats { margin-top: 26px; display: flex; justify-content: center; gap: 48px; flex-wrap: wrap; }
.jobs-hero .jh-stat b { display: block; font-size: 26px; font-weight: 850; color: var(--brand-blue); line-height: 1.2; }
.jobs-hero .jh-stat span { font-size: 13px; color: var(--ink-400); }

/* ---------- 三栏布局 ---------- */
.jobs-section { padding: 8px 0 56px; }
.jobs-layout { display: grid; grid-template-columns: 248px minmax(0, 1fr) 284px; gap: 28px; align-items: start; }

/* ---------- 左侧筛选 ---------- */
.jf-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; }
.jf-head { display: flex; justify-content: space-between; align-items: center; padding-bottom: 14px; border-bottom: 1px solid var(--line); margin-bottom: 4px; }
.jf-head b { color: var(--ink-900); font-size: 16px; font-weight: 800; }
.jf-reset { font-size: 13px; color: var(--ink-400); cursor: pointer; transition: color .2s; }
.jf-reset:hover { color: var(--brand-blue); }
.jf-group { padding: 14px 0 12px; border-bottom: 1px dashed var(--line); }
.jf-group:last-child { border-bottom: none; padding-bottom: 2px; }
.jf-title { font-size: 14px; font-weight: 700; color: var(--ink-900); margin-bottom: 8px; display: flex; align-items: center; gap: 7px; }
.jf-title svg { width: 12px; height: 12px; stroke: var(--brand-blue); }
.jf-opt { display: flex; align-items: center; gap: 9px; padding: 6px 2px; font-size: 14px; color: var(--ink-700); cursor: pointer; user-select: none; border-radius: 6px; transition: color .15s; }
.jf-opt:hover { color: var(--brand-blue); }
.jf-opt input { accent-color: var(--brand-blue); width: 15px; height: 15px; margin: 0; cursor: pointer; flex: none; }
.jf-opt .cnt { margin-left: auto; font-size: 12px; color: #94A3B8; }

/* ---------- 中间职位列表 ---------- */
.jobs-toolbar { display: flex; gap: 12px; margin-bottom: 12px; }
.jobs-search { flex: 1; display: flex; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; transition: border-color .2s, box-shadow .2s; }
.jobs-search:focus-within { border-color: var(--brand-blue); box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
.jobs-search input { flex: 1; border: none; outline: none; padding: 12px 16px; font-family: inherit; font-size: 14.5px; color: var(--ink-800); background: transparent; min-width: 0; }
.jobs-search .jsearch-btn { background: var(--brand-grad); color: #fff; padding: 0 24px; font-size: 14px; font-weight: 600; letter-spacing: .02em; }
.jobs-count { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; font-size: 14px; color: var(--ink-500); }
.jobs-count b { color: var(--brand-blue); font-size: 16px; }
.jobs-count .jc-reset { font-size: 13px; color: var(--ink-400); cursor: pointer; }
.jobs-count .jc-reset:hover { color: var(--brand-blue); }

.job-card { display: block; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 10px; overflow: hidden; transition: box-shadow .25s ease, border-color .25s ease; }
.job-card:hover { box-shadow: var(--shadow); }
.job-card.open { border-color: rgba(37,99,235,.45); box-shadow: var(--shadow); }
.job-head { display: flex; align-items: flex-start; gap: 14px; padding: 14px 18px 14px 0; cursor: pointer; }
.job-arrow { width: 24px; height: 24px; border-radius: 8px; flex: none; display: grid; place-items: center; background: rgba(37,99,235,.1); color: var(--brand-blue); transition: transform .25s ease; margin: 2px 0 0 0; }
.job-arrow svg { width: 12px; height: 12px; }
.job-card.open .job-arrow { transform: rotate(90deg); }
.job-main { flex: 1; min-width: 0; }
.job-title { font-size: 16.5px; font-weight: 700; color: var(--ink-900); line-height: 1.4; }
.job-title .job-code { color: #94A3B8; font-weight: 500; font-size: 14px; margin-left: 4px; }
.job-hot-tag { display: inline-block; font-size: 11px; font-weight: 800; color: #EF4444; border: 1px solid rgba(239,68,68,.45); border-radius: 999px; padding: 1px 8px; margin-left: 8px; vertical-align: 2px; }
.job-meta { display: flex; flex-wrap: wrap; gap: 4px 14px; margin-top: 5px; font-size: 13px; color: var(--ink-400); }
.job-meta .jm-city { color: var(--brand-blue); font-weight: 600; }
.job-salary { color: #F97316; font-weight: 700; }
.job-side { text-align: right; flex: none; }
.job-date { font-size: 12.5px; color: #94A3B8; white-space: nowrap; margin-top: 2px; }
.job-body { max-height: 0; overflow: hidden; transition: max-height .4s ease; }
.job-card.open .job-body { max-height: 1400px; }
.job-body-inner { margin: 0 22px; padding: 18px 0 20px 38px; border-top: 1px dashed var(--line); }
.job-sec h5 { font-size: 14.5px; font-weight: 700; color: var(--brand-blue); margin: 16px 0 6px; }
.job-sec h5:first-child { margin-top: 0; }
.job-sec li { position: relative; padding-left: 16px; font-size: 14px; color: var(--ink-500); line-height: 1.85; }
.job-sec li::before { content: ""; position: absolute; left: 2px; top: .8em; width: 5px; height: 5px; border-radius: 50%; background: var(--brand-blue); }
.job-note { margin-top: 14px; background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 12px 16px; font-size: 13.5px; color: var(--ink-700); line-height: 1.8; }
.job-note b { color: #F97316; }
.job-apply { margin-top: 18px; }
.job-apply .btn { padding: 10px 24px; font-size: 14px; }
.jobs-empty { text-align: center; padding: 70px 0; color: var(--ink-400); font-size: 15px; display: none; }

/* ---------- 右侧热招职位 ---------- */
.hot-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 18px; position: sticky; top: calc(var(--header-h) + 20px); }
.hot-head { display: flex; align-items: center; gap: 8px; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.hot-head svg { width: 16px; height: 16px; fill: #EF4444; }
.hot-head b { font-size: 15.5px; color: var(--ink-900); font-weight: 800; }
.hot-item { display: block; width: 100%; text-align: left; padding: 10px 8px; border-bottom: 1px dashed var(--line); border-radius: 8px; transition: background .2s ease; }
.hot-item:last-child { border-bottom: none; }
.hot-item:hover { background: var(--bg-soft); }
.hot-item .hi-t { font-size: 14px; font-weight: 600; color: var(--ink-800); line-height: 1.45; }
.hot-item:hover .hi-t { color: var(--brand-blue); }
.hot-item .hi-d { font-size: 12px; color: #94A3B8; margin-top: 4px; }

/* ---------- 招聘页响应式 ---------- */
@media (max-width: 1080px) {
  .jobs-layout { grid-template-columns: 226px minmax(0, 1fr); }
  .hot-col { display: none; }
}
@media (max-width: 820px) {
  .jobs-layout { grid-template-columns: 1fr; }
  .jf-card { position: static; }
  .job-side { display: none; }
}
@media (max-width: 480px) {
  .jobs-hero .jh-stats { gap: 26px; }
  .job-head { padding: 12px 14px 12px 0; }
  .job-body-inner { margin: 0 16px; padding-left: 0; }
}

/* ============================================================
   岗位详情页
   ============================================================ */
.jd-top {
  position: relative;
  margin-top: var(--header-h);
  padding: 40px 0 56px;
  background:
    radial-gradient(700px 320px at 88% 0%, rgba(37,99,235,.08), transparent 60%),
    linear-gradient(135deg, rgba(37,99,235,.05), rgba(37,99,235,.03)),
    linear-gradient(180deg, var(--bg-soft) 0%, var(--bg-soft) 45%, #ffffff 100%);
  overflow: hidden;
}
.jd-back {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 14px; font-weight: 600; color: var(--ink-500); margin-bottom: 18px;
}
.jd-back:hover { color: var(--brand-blue); }
.jd-back svg { width: 14px; height: 14px; }
.jd-top .jd-title { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; }
.jd-top h1 { font-size: clamp(26px, 3.4vw, 38px); font-weight: 850; color: var(--ink-900); letter-spacing: -.01em; }
.jd-top .jd-code { font-size: 15px; color: #94A3B8; font-weight: 500; }
.jd-top .job-hot-tag { font-size: 12px; }
.jd-meta { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 10px; }
.jd-meta .jd-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px; border-radius: 999px;
  background: #fff; border: 1px solid var(--line);
  font-size: 13.5px; color: var(--ink-700); font-weight: 600;
}
.jd-meta .jd-chip.blue { color: var(--brand-blue); background: rgba(37,99,235,.06); border-color: rgba(37,99,235,.2); }
.jd-meta .jd-chip.orange { color: #F97316; background: rgba(249,115,22,.08); border-color: rgba(249,115,22,.25); }

.jd-body { padding: 12px 0 48px; }
.jd-body .container { max-width: 860px; }
.jd-sec { margin-bottom: 36px; }
.jd-sec h2 {
  font-size: 20px; color: var(--ink-900); font-weight: 800; margin-bottom: 16px;
  padding-left: 14px; border-left: 4px solid var(--brand-blue); line-height: 1.3;
}
.jd-sec ul { display: grid; gap: 10px; }
.jd-sec li { position: relative; padding-left: 18px; font-size: 15.5px; color: var(--ink-500); line-height: 1.85; }
.jd-sec li::before { content: ""; position: absolute; left: 2px; top: .85em; width: 6px; height: 6px; border-radius: 50%; background: var(--brand-blue); }
.jd-note {
  margin-top: 8px; background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 16px 20px; font-size: 14.5px; color: var(--ink-700); line-height: 1.9;
}
.jd-note b { color: #F97316; }

.jd-apply-wrap { text-align: center; padding: 18px 0 24px; }
.jd-apply-wrap .btn { font-size: 16px; padding: 15px 40px; }

/* ---------- 简历投递邮箱 ---------- */
.jd-email {
  padding: 4px 0 18px; font-size: 15px; color: var(--ink-500);
  border-top: 1px solid var(--line); margin-top: 28px; padding-top: 18px;
}
.jd-email-link {
  font-size: 15px; font-weight: 700; color: var(--brand-blue); text-decoration: none;
  transition: color .2s;
}
.jd-email-link:hover { color: #1d4ed8; text-decoration: underline; }

/* ---------- 申请职位弹窗 ---------- */
.apply-overlay {
  position: fixed; inset: 0; z-index: 2000;
  background: rgba(15,23,42,.55); backdrop-filter: blur(2px);
  display: none; align-items: flex-start; justify-content: center;
  padding: 60px 16px; overflow-y: auto;
}
.apply-overlay.show { display: flex; }

/* ---------- 申请表单（详情页内嵌） ---------- */
.apply-card {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 34px 36px 30px;
  box-shadow: var(--shadow); margin-top: 8px;
}
.apply-card h3 { font-size: 21px; color: var(--ink-900); font-weight: 800; }
.apply-card .am-sub { font-size: 14px; color: var(--ink-400); margin-top: 6px; margin-bottom: 22px; }
.apply-card .am-sub b { color: var(--brand-blue); }
.am-field.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.am-field select {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--radius-sm);
  font-family: inherit; font-size: 14.5px; color: var(--ink-800); background: var(--bg-soft);
  transition: border-color .2s, box-shadow .2s, background .2s; cursor: pointer;
}
.am-field select:focus { outline: none; border-color: var(--brand-blue); background: #fff; box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
@media (max-width: 640px) {
  .apply-card { padding: 26px 20px 24px; }
  .am-field.row2 { grid-template-columns: 1fr; gap: 0; }
}
.apply-modal {
  width: 100%; max-width: 520px; background: #fff;
  border-radius: var(--radius-lg); padding: 34px 34px 30px;
  box-shadow: var(--shadow-lg); position: relative;
  animation: applyIn .25s ease;
}
@keyframes applyIn { from { transform: translateY(14px); opacity: .6; } }
.apply-close {
  position: absolute; top: 16px; right: 16px; width: 34px; height: 34px;
  border-radius: 50%; display: grid; place-items: center; color: var(--ink-400);
  background: var(--bg-soft); transition: background .2s, color .2s;
}
.apply-close:hover { background: var(--line); color: var(--ink-800); }
.apply-close svg { width: 16px; height: 16px; }
.apply-modal h3 { font-size: 21px; color: var(--ink-900); font-weight: 800; }
.apply-modal .am-sub { font-size: 14px; color: var(--ink-400); margin-top: 6px; margin-bottom: 22px; }
.apply-modal .am-sub b { color: var(--brand-blue); }
.am-field { margin-bottom: 16px; }
.am-field label { display: block; font-size: 13.5px; font-weight: 600; color: var(--ink-800); margin-bottom: 7px; }
.am-field label .req { color: #EF4444; margin-left: 2px; }
.am-field input[type="text"], .am-field input[type="email"], .am-field input[type="tel"], .am-field textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--radius-sm);
  font-family: inherit; font-size: 14.5px; color: var(--ink-800); background: var(--bg-soft);
  transition: border-color .2s, box-shadow .2s, background .2s;
}
.am-field input:focus, .am-field textarea:focus { outline: none; border-color: var(--brand-blue); background: #fff; box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
.am-field textarea { resize: vertical; min-height: 84px; }
.am-file {
  border: 1px dashed var(--line); border-radius: var(--radius-sm);
  padding: 16px; background: var(--bg-soft); text-align: center; cursor: pointer;
  transition: border-color .2s, background .2s;
}
.am-file:hover { border-color: var(--brand-blue); background: rgba(37,99,235,.04); }
.am-file input { display: none; }
.am-file .am-f-hint { font-size: 14px; color: var(--ink-500); }
.am-file .am-f-hint b { color: var(--brand-blue); }
.am-file .am-f-name { font-size: 13px; color: var(--ink-700); margin-top: 8px; font-weight: 600; word-break: break-all; }
.am-submit { width: 100%; justify-content: center; margin-top: 6px; }
.am-success { text-align: center; padding: 14px 6px 6px; }
.am-success .ok-ico { width: 60px; height: 60px; margin: 0 auto 16px; border-radius: 50%; background: rgba(16,185,129,.12); display: grid; place-items: center; }
.am-success .ok-ico svg { width: 30px; height: 30px; stroke: #10B981; }
.am-success h3 { margin-bottom: 8px; }
.am-success p { color: var(--ink-500); font-size: 14.5px; }

@media (max-width: 480px) {
  .apply-modal { padding: 28px 22px 24px; }
  .jd-body { padding: 36px 0 28px; }
}

/* ============================================================
   文章正文弹窗（无跳转链接、有正文时展示）
   ============================================================ */
.post-body .pt-more-btn {
  background: none; border: none; padding: 0; cursor: pointer;
  font-family: inherit; text-align: left;
}
.article-modal {
  position: fixed; inset: 0; z-index: 2100;
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
}
.article-modal[hidden] { display: none; }
.article-modal-mask {
  position: absolute; inset: 0;
  background: rgba(15, 23, 42, .55); backdrop-filter: blur(2px);
}
.article-modal-card {
  position: relative; width: 100%; max-width: 780px; max-height: 86vh;
  overflow-y: auto; background: #fff; border-radius: var(--radius-lg);
  padding: 40px 44px; box-shadow: 0 30px 80px -20px rgba(15, 23, 42, .4);
  animation: applyIn .25s ease;
}
.article-modal-close {
  position: absolute; top: 16px; right: 18px;
  font-size: 30px; line-height: 1; color: var(--ink-400);
  background: none; border: none; cursor: pointer; transition: color .2s;
}
.article-modal-close:hover { color: var(--ink-900); }
.article-modal-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.article-modal-cat {
  font-size: 12px; font-weight: 700; color: var(--brand-blue);
  background: rgba(37, 99, 235, .08); padding: 4px 12px; border-radius: 999px;
}
.article-modal-date { font-size: 12.5px; color: var(--ink-400); }
.article-modal-card h3 {
  font-size: 24px; color: var(--ink-900); font-weight: 800;
  line-height: 1.4; margin-bottom: 20px;
}
.article-modal-body { color: var(--ink-700); font-size: 15.5px; line-height: 1.9; }
.article-modal-body p { margin: 12px 0; }
.article-modal-body h1, .article-modal-body h2,
.article-modal-body h3, .article-modal-body h4 { color: var(--ink-900); margin: 20px 0 10px; line-height: 1.4; }
.article-modal-body ul, .article-modal-body ol { padding-left: 22px; margin: 12px 0; }
.article-modal-body blockquote {
  border-left: 3px solid var(--brand-blue); padding-left: 14px;
  color: var(--ink-500); margin: 14px 0;
}
.article-modal-body a { color: var(--brand-blue); }
.article-modal-body img, .article-modal-body video {
  max-width: 100%; border-radius: 10px; margin: 12px 0; display: block;
}
.article-modal-loading, .article-modal-empty { text-align: center; color: var(--ink-400); padding: 48px 0; }
@media (max-width: 640px) {
  .article-modal { padding: 16px; }
  .article-modal-card { padding: 28px 22px; }
}