/* ============================================================
   慧营销 · 海外独立站 & 国内外 AI 搜索营销（GEO）
   共享样式表 —— 基于设计稿提取并扩展
   ============================================================ */
:root {
  /* Light tech background base */
  --bg: #f5f9ff;
  --bg-alt: #eef4fc;
  --surface: #ffffff;
  --surface-elevated: #ffffff;
  /* Brand - Overseas (blue) */
  --blue-900: #1e3a5f;
  --blue-700: #1d4ed8;
  --blue-600: #2563eb;
  --blue-500: #3b82f6;
  --blue-400: #60a5fa;
  --blue-300: #93c5fd;
  --blue-200: #bfdbfe;
  --blue-100: #dbeafe;
  --blue-50: #eff6ff;
  /* Brand - Domestic GEO (violet) */
  --violet-700: #6d28d9;
  --violet-600: #7c3aed;
  --violet-500: #8b5cf6;
  --violet-400: #a78bfa;
  --violet-300: #c4b5fd;
  --violet-200: #ddd6fe;
  --violet-100: #ede9fe;
  --violet-50: #f5f3ff;
  /* Accent */
  --amber-600: #d97706;
  --amber-500: #f59e0b;
  --amber-100: #fef3c7;
  /* Neutral */
  --ink-900: #0f172a;
  --ink-700: #334155;
  --ink-500: #64748b;
  --ink-300: #94a3b8;
  --line: #e2e8f0;
  --line-soft: #f1f5f9;
  /* Type */
  --font-display: "Space Grotesk", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "PingFang SC", "Microsoft YaHei", -apple-system, "Segoe UI", sans-serif;
  --shadow-sm: 0 1px 2px rgba(15,23,42,0.04);
  --shadow-md: 0 4px 16px rgba(15,23,42,0.06);
  --shadow-lg: 0 16px 48px rgba(15,23,42,0.1);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 88px; }
body {
  font-family: var(--font-body);
  background: linear-gradient(180deg, #f4f8ff 0%, #eef3fb 40%, #f3f1fd 100%);
  background-attachment: fixed;
  color: var(--ink-900);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ---------- Utility ---------- */
.section { padding: 96px 0; }
.section--tight { padding: 72px 0; }
.section--blue {
  background: linear-gradient(180deg, #f5f9ff 0%, #eef4fc 100%);
  position: relative;
}
.section--blue::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(800px 600px at 90% 20%, rgba(37,99,235,0.06), transparent 70%),
              radial-gradient(600px 500px at 5% 90%, rgba(124,58,237,0.05), transparent 70%);
  pointer-events: none;
}
.section--white {
  background:
    radial-gradient(680px 380px at 88% 6%, rgba(37,99,235,0.055), transparent 65%),
    radial-gradient(560px 360px at 6% 94%, rgba(124,58,237,0.05), transparent 65%),
    var(--surface);
  position: relative;
}
.section--violet {
  background: linear-gradient(180deg, #faf7ff 0%, #f5f3ff 100%);
  position: relative;
}
.section--violet::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(700px 500px at 15% 30%, rgba(124,58,237,0.07), transparent 70%),
              radial-gradient(600px 400px at 85% 80%, rgba(37,99,235,0.05), transparent 70%);
  pointer-events: none;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; letter-spacing: 0.08em;
  color: var(--blue-600); text-transform: uppercase;
}
.eyebrow--violet { color: var(--violet-600); }
.eyebrow .line { width: 28px; height: 2px; background: currentColor; border-radius: 1px; }
.section-head { margin-bottom: 56px; position: relative; z-index: 1; }
.section-head.center { text-align: center; }
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 3.6vw, 2.8rem);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -0.01em;
  margin-top: 14px;
  color: var(--ink-900);
}
.section-sub {
  font-size: 1.05rem; color: var(--ink-500);
  max-width: 620px; margin-top: 16px;
}
.section-head.center .section-sub { margin-left: auto; margin-right: auto; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-display); font-weight: 600;
  font-size: 0.95rem; letter-spacing: 0.01em;
  padding: 14px 30px; border-radius: 10px;
  border: 1px solid transparent; cursor: pointer;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), background 0.35s var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:focus-visible { outline: 3px solid var(--blue-500); outline-offset: 3px; }
.btn--primary { background: var(--blue-700); color: #fff; box-shadow: 0 8px 24px rgba(37,99,235,0.28); }
.btn--primary:hover { background: var(--blue-900); box-shadow: 0 12px 32px rgba(37,99,235,0.35); }
.btn--amber { background: var(--amber-500); color: #451a03; box-shadow: 0 8px 24px rgba(245,158,11,0.30); }
.btn--amber:hover { background: var(--amber-600); color: #fff; }
.btn--ghost-blue { border-color: var(--blue-200); color: var(--blue-700); background: transparent; }
.btn--ghost-blue:hover { background: var(--blue-50); border-color: var(--blue-500); }
.btn--ghost-violet { border-color: var(--violet-300); color: var(--violet-700); background: transparent; }
.btn--ghost-violet:hover { background: var(--violet-50); border-color: var(--violet-500); }
.btn--ghost-hero { border-color: var(--blue-300); color: var(--blue-700); background: var(--blue-50); }
.btn--ghost-hero:hover { background: var(--blue-100); border-color: var(--blue-500); }

/* ---------- Nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(14px);
  box-shadow: 0 4px 24px rgba(15,23,42,0.06);
  transition: background 0.4s var(--ease), box-shadow 0.4s var(--ease), backdrop-filter 0.4s;
}
.nav::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0; height: 3px; z-index: 2;
  background: linear-gradient(90deg, var(--blue-600) 0%, var(--violet-600) 55%, var(--amber-500) 100%);
}
.nav.scrolled {
  background: rgba(255,255,255,0.98);
  box-shadow: 0 4px 24px rgba(15,23,42,0.08);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.logo-img {
  height: 42px; width: auto;
  display: block;
  border-radius: 10px;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.logo-text {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--ink-900);
  letter-spacing: 0.02em;
  line-height: 1;
  transition: color 0.3s var(--ease);
}
.logo:hover .logo-img { transform: translateY(-1px); box-shadow: 0 6px 18px rgba(37,99,235,0.15); }
.logo:hover .logo-text { color: var(--blue-700); }
.nav-links { display: flex; align-items: center; gap: 32px; list-style: none; }
.nav-links a {
  color: var(--ink-700); font-size: 0.92rem; font-weight: 500;
  transition: color 0.3s var(--ease);
  position: relative;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: -6px;
  width: 0; height: 2px; background: var(--blue-500);
  transition: width 0.35s var(--ease);
}
.nav-links a:hover { color: var(--blue-700); }
.nav-links a:hover::after { width: 100%; }
.nav-cta { display: flex; align-items: center; gap: 14px; }
.nav .btn--primary { padding: 11px 22px; font-size: 0.88rem; }
.nav-toggle { display: none; background: none; border: 0; color: var(--ink-700); cursor: pointer; padding: 8px; }
.nav-toggle svg { width: 26px; height: 26px; }

/* ---------- Hero (home) ---------- */
.hero {
  position: relative;
  background: linear-gradient(135deg, #f5f9ff 0%, #eef4fc 50%, #f0f7ff 100%);
  color: var(--ink-900);
  padding: 170px 0 100px;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(1000px 600px at 80% -10%, rgba(37,99,235,0.12), transparent 65%),
    radial-gradient(800px 500px at 10% 110%, rgba(124,58,237,0.08), transparent 65%);
}
.hero::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(59,130,246,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,0.05) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(1000px 700px at 50% 50%, #000 25%, transparent 70%);
  -webkit-mask-image: radial-gradient(1000px 700px at 50% 50%, #000 25%, transparent 70%);
}
.hero-grid { position: relative; display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 60px; align-items: center; }
.hero-kicker {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 18px; border-radius: 40px;
  background: linear-gradient(120deg, rgba(255,255,255,0.9), rgba(239,246,255,0.85));
  border: 1px solid var(--blue-200);
  font-size: 13px; color: var(--blue-700); font-weight: 500;
  backdrop-filter: blur(4px);
  box-shadow: 0 2px 12px rgba(37,99,235,0.1);
}
.hero-kicker .pulse { width: 8px; height: 8px; border-radius: 50%; background: #4ade80; box-shadow: 0 0 0 4px rgba(74,222,128,0.18); }
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-top: 24px;
}
.hero h1 .grad {
  background: linear-gradient(100deg, #2563eb 0%, #7c3aed 50%, #d97706 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lead {
  margin-top: 22px; font-size: 1.1rem; line-height: 1.8;
  color: var(--ink-500); max-width: 540px;
}
.hero-cta { display: flex; gap: 14px; margin-top: 36px; flex-wrap: wrap; }
.hero-note { margin-top: 20px; font-size: 13px; color: var(--ink-300); }
.hero-platforms { margin-top: 28px; display: grid; gap: 10px; max-width: 560px; }
.hp-group { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.hp-tag {
  flex-shrink: 0; font-size: 11px; font-weight: 700; letter-spacing: 0.04em;
  padding: 4px 12px; border-radius: 30px;
  background: var(--violet-50); border: 1px solid var(--violet-100);
  color: var(--violet-700);
}
.hp-tag--blue {
  background: var(--blue-50); border-color: var(--blue-100); color: var(--blue-700);
}
.hp-chips { font-size: 12px; color: var(--ink-500); letter-spacing: 0.01em; }

/* Hero visual - data globe */
.hero-visual { position: relative; display: flex; align-items: center; justify-content: center; }
.hero-globe {
  width: 320px; height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, rgba(59,130,246,0.15), rgba(124,58,237,0.08) 50%, transparent 70%);
  border: 1px solid rgba(59,130,246,0.12);
  position: relative;
  display: flex; align-items: center; justify-content: center;
}
.hero-globe::before {
  content: "";
  position: absolute;
  width: 260px; height: 260px;
  border-radius: 50%;
  border: 1px dashed rgba(59,130,246,0.15);
  animation: spin 20s linear infinite;
}
.hero-globe::after {
  content: "";
  position: absolute;
  width: 200px; height: 200px;
  border-radius: 50%;
  border: 1px solid rgba(124,58,237,0.1);
  animation: spin 15s linear infinite reverse;
}
.hero-globe-inner {
  position: absolute;
  width: 100%; height: 100%;
  border-radius: 50%;
  background: conic-gradient(from 0deg, transparent, rgba(59,130,246,0.08), transparent 30%, rgba(124,58,237,0.06), transparent 60%, rgba(245,158,11,0.04), transparent);
  animation: spin 25s linear infinite;
}
.globe-core {
  width: 80px; height: 80px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59,130,246,0.35), rgba(124,58,237,0.2) 70%, transparent);
  box-shadow: 0 0 60px rgba(59,130,246,0.2), 0 0 120px rgba(124,58,237,0.1);
}
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.hero-float {
  position: absolute;
  font-size: 11px;
  font-weight: 600;
  color: var(--ink-700);
  background: rgba(255,255,255,0.85);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 6px 14px;
  backdrop-filter: blur(8px);
  white-space: nowrap;
  box-shadow: var(--shadow-md);
}
.hf-1 { top: 10%; right: 5%; animation: float 4s ease-in-out infinite; }
.hf-2 { bottom: 15%; left: 0%; animation: float 5s ease-in-out 1s infinite; }
.hf-3 { top: 50%; right: -5%; animation: float 6s ease-in-out 0.5s infinite; }
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ---------- Sub-page hero ---------- */
.sub-hero {
  position: relative;
  padding: 150px 0 76px;
  overflow: hidden;
}
.sub-hero--blue { background: linear-gradient(135deg, #eef4fc 0%, #f0f7ff 60%, #f5f9ff 100%); }
.sub-hero--violet { background: linear-gradient(135deg, #f5f3ff 0%, #faf5ff 60%, #f5f9ff 100%); }
.sub-hero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(800px 500px at 85% -20%, rgba(37,99,235,0.10), transparent 60%),
    radial-gradient(700px 420px at 5% 110%, rgba(124,58,237,0.08), transparent 60%);
}
.sub-hero .crumb {
  position: relative; z-index: 1;
  font-size: 13px; color: var(--ink-500); margin-bottom: 18px;
}
.sub-hero .crumb a { color: var(--blue-600); }
.sub-hero .crumb a:hover { text-decoration: underline; }
.sub-hero .crumb em { font-style: normal; color: var(--ink-300); padding: 0 6px; }
.sub-hero h1 {
  position: relative; z-index: 1;
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 4.4vw, 3.2rem);
  font-weight: 700; line-height: 1.18; letter-spacing: -0.015em;
}
.sub-hero h1 .grad-blue { background: linear-gradient(100deg, #1d4ed8, #3b82f6 70%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.sub-hero h1 .grad-violet { background: linear-gradient(100deg, #6d28d9, #8b5cf6 70%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.sub-hero p.lead {
  position: relative; z-index: 1;
  margin-top: 20px; font-size: 1.06rem; color: var(--ink-500); max-width: 640px; line-height: 1.8;
}
.sub-hero .sub-tags { position: relative; z-index: 1; margin-top: 26px; display: flex; flex-wrap: wrap; gap: 10px; }
.sub-hero .sub-tags span {
  font-size: 12px; padding: 7px 16px; border-radius: 30px;
  background: rgba(255,255,255,0.85); border: 1px solid var(--line); color: var(--ink-700);
  box-shadow: var(--shadow-sm);
}

/* ---------- Stats (deep gradient band) ---------- */
.stats {
  position: relative; overflow: hidden;
  background:
    radial-gradient(700px 360px at 82% -20%, rgba(124,58,237,0.45), transparent 70%),
    radial-gradient(560px 300px at 8% 120%, rgba(59,130,246,0.35), transparent 70%),
    linear-gradient(118deg, #0c1e44 0%, #14337d 48%, #322a7e 100%);
  padding: 64px 0;
  color: #fff;
}
.stats::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(900px 400px at 50% 50%, #000 20%, transparent 80%);
  -webkit-mask-image: radial-gradient(900px 400px at 50% 50%, #000 20%, transparent 80%);
}
.stats-grid { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat b { font-family: var(--font-display); font-size: clamp(1.8rem, 3vw, 2.6rem); font-weight: 700; color: #fff; display: block; text-shadow: 0 2px 18px rgba(0,0,0,0.25); }
.stat b em { font-style: normal; color: #fbbf24; }
.stat span { font-size: 13px; color: rgba(255,255,255,0.78); margin-top: 4px; display: block; }

/* ---------- Intro banner ---------- */
.intro-banner {
  background: linear-gradient(135deg, var(--blue-50), var(--violet-50));
  border-radius: 20px;
  padding: 48px 40px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px;
  align-items: center;
  border: 1px solid var(--line);
}
.ib-left h3 { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; color: var(--ink-900); }
.ib-left p { color: var(--ink-500); margin-top: 10px; }
.ib-right { display: flex; gap: 12px; justify-content: flex-end; flex-wrap: wrap; }

/* ---------- Overseas services (home cards) ---------- */
.ov-section { position: relative; z-index: 1; }
.ov-wrap { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; position: relative; z-index: 1; }
.ov-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: 14px;
  padding: 28px; position: relative; overflow: hidden;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s;
  display: flex; flex-direction: column;
}
.ov-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--blue-600), var(--blue-400), transparent);
  opacity: 0.75;
}
.ov-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--blue-200); }
.ov-card:hover::before { opacity: 1; }
.ov-ico {
  width: 46px; height: 46px; border-radius: 12px;
  background: var(--blue-50); color: var(--blue-600);
  display: grid; place-items: center; font-size: 21px;
}
.ov-card h4 { font-family: var(--font-display); font-size: 1.12rem; font-weight: 700; margin-top: 18px; color: var(--ink-900); }
.ov-card p { font-size: 0.9rem; color: var(--ink-500); margin-top: 8px; line-height: 1.7; }
.ov-card .tag { display: inline-block; margin-top: 14px; font-size: 11px; font-weight: 600; color: var(--blue-600); background: var(--blue-50); padding: 3px 10px; border-radius: 30px; }
.ov-card .tag.core { background: var(--blue-100); color: var(--blue-700); }
.ov-card .ov-link { margin-top: auto; padding-top: 16px; font-family: var(--font-display); font-weight: 600; font-size: 0.88rem; color: var(--blue-600); display: inline-flex; align-items: center; gap: 5px; }
.ov-card .ov-link:hover { color: var(--blue-900); }

/* ---------- GEO section (home cards) ---------- */
.geo-section { position: relative; z-index: 1; }
.geo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; position: relative; z-index: 1; }
.geo-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 28px;
  position: relative; overflow: hidden;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s;
  display: flex; flex-direction: column;
}
.geo-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--violet-600), var(--violet-400), transparent);
  opacity: 0.75;
}
.geo-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--violet-200); }
.geo-card:hover::before { opacity: 1; }
.geo-card .g-num { font-family: var(--font-display); font-size: 13px; font-weight: 700; color: var(--violet-600); }
.geo-card h4 { font-family: var(--font-display); font-size: 1.1rem; font-weight: 700; margin-top: 10px; color: var(--ink-900); }
.geo-card p { font-size: 0.88rem; color: var(--ink-500); margin-top: 8px; line-height: 1.7; }
.geo-card p b { color: var(--violet-700); font-weight: 600; }
.geo-card .geo-link { margin-top: auto; padding-top: 14px; font-family: var(--font-display); font-weight: 600; font-size: 0.88rem; color: var(--violet-600); display: inline-flex; align-items: center; gap: 5px; }
.geo-card .geo-link:hover { color: var(--violet-800, #5b21b6); }

/* GEO platforms */
.geo-platforms-wrap {
  position: relative; z-index: 1;
  background:
    radial-gradient(600px 300px at 90% 0%, rgba(124,58,237,0.06), transparent 65%),
    var(--surface);
  border: 1px solid var(--violet-200);
  border-radius: 16px;
  padding: 32px;
  margin-top: 40px;
  box-shadow: 0 8px 32px rgba(124,58,237,0.08);
}
.geo-platforms-wrap h4 { font-family: var(--font-display); font-size: 1.1rem; font-weight: 700; color: var(--ink-900); margin-bottom: 20px; text-align: center; }
.geo-platforms-wrap h4 span { color: var(--violet-600); }
.geo-platforms { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.geo-plat {
  background: var(--violet-50); border: 1px solid var(--violet-100);
  border-radius: 12px; padding: 18px 12px; text-align: center;
  transition: background 0.4s var(--ease), transform 0.4s var(--ease), box-shadow 0.4s;
}
.geo-plat:hover { background: var(--violet-100); transform: translateY(-3px); box-shadow: var(--shadow-md); }
.geo-plat b { font-family: var(--font-display); font-size: 1.05rem; font-weight: 700; display: block; color: var(--violet-700); }
.geo-plat span { font-size: 11px; color: var(--ink-500); }
.geo-plat-more {
  background: var(--surface); border: 2px dashed var(--line);
  border-radius: 12px; padding: 18px 12px; text-align: center;
  display: flex; align-items: center; justify-content: center;
}
.geo-plat-more span { font-size: 14px; color: var(--ink-500); font-weight: 600; }
.geo-plat-note { text-align: center; font-size: 12px; color: var(--ink-500); margin-top: 16px; }
.geo-plat-note b { color: var(--violet-600); font-weight: 600; }

/* ---------- AI Panel Section ---------- */
.ai-panel-section { background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%); }
.ai-panel-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center;
}
.ai-panel-desc h3 { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; color: var(--ink-900); margin-bottom: 16px; }
.ai-panel-desc p { color: var(--ink-500); font-size: 1rem; line-height: 1.8; margin-bottom: 24px; }
.ai-panel-desc .ai-features { display: grid; gap: 12px; }
.ai-panel-desc .ai-features li { list-style: none; display: flex; align-items: center; gap: 10px; font-size: 0.95rem; color: var(--ink-700); }
.ai-panel-desc .ai-features li .check { width: 20px; height: 20px; border-radius: 50%; background: var(--violet-100); color: var(--violet-600); display: grid; place-items: center; font-size: 11px; font-weight: 700; flex-shrink: 0; }
.ai-panel-card {
  position: relative;
  background:
    radial-gradient(480px 260px at 100% 0%, rgba(124,58,237,0.06), transparent 60%),
    var(--surface);
  border-radius: 20px;
  padding: 32px 28px;
  color: var(--ink-900);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--violet-100);
}
.ai-panel-card::before {
  content: ""; position: absolute; top: 0; left: 24px; right: 24px; height: 3px;
  border-radius: 0 0 4px 4px;
  background: linear-gradient(90deg, var(--blue-500), var(--violet-500), var(--amber-500));
}
.ai-panel-card .panel-title { font-size: 13px; font-weight: 600; letter-spacing: 0.1em; color: var(--ink-500); text-transform: uppercase; margin-bottom: 18px; }
.ai-panel-card .platform-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.ai-panel-card .platform-row:last-child { border-bottom: 0; }
.ai-panel-card .platform-row .pf { display: flex; align-items: center; gap: 12px; }
.ai-panel-card .pf-ico {
  width: 34px; height: 34px; border-radius: 9px;
  display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 700; font-size: 12px; color: #fff;
}
.ai-panel-card .pf-ico.ds { background: #6b7af0; }
.ai-panel-card .pf-ico.db { background: #3b82f6; }
.ai-panel-card .pf-ico.wx { background: #2f6fde; }
.ai-panel-card .pf-ico.ty { background: #1f7bd6; }
.ai-panel-card .pf-ico.tyb { background: #2aa3ef; }
.ai-panel-card .pf-ico.km { background: #e55a5a; }
.ai-panel-card .pf-ico.nm { background: #10b981; }
.ai-panel-card .pf-ico.zp { background: #f59e0b; }
.ai-panel-card .pf-ico.cg { background: #10a37f; }
.ai-panel-card .pf-ico.gm { background: #4285f4; }
.ai-panel-card .pf-ico.pp { background: #0ea5e9; }
.ai-panel-card .pf-ico.cl { background: #d97757; }
.ai-panel-card .panel-divider {
  margin: 14px 0 4px; padding-top: 14px; border-top: 1px solid var(--line);
  font-size: 11px; font-weight: 700; letter-spacing: 0.1em;
  color: var(--violet-600); text-transform: uppercase;
}
.ai-panel-card .platform-row .pf b { font-size: 14px; font-weight: 600; color: var(--ink-900); display: block; line-height: 1.25; }
.ai-panel-card .platform-row .pf span { font-size: 11px; color: var(--ink-500); }
.ai-panel-card .pf-status { font-size: 11px; color: #16a34a; display: flex; align-items: center; gap: 5px; font-weight: 600; }
.ai-panel-card .panel-foot { margin-top: 18px; padding: 14px 16px; border-radius: 10px; background: var(--blue-50); font-size: 13px; color: var(--ink-700); display: flex; align-items: center; gap: 10px; }
.ai-panel-card .panel-foot b { color: var(--blue-700); }

/* ---------- Clients ---------- */
.client-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.client-card { border-radius: 16px; padding: 34px; border: 1px solid var(--line); background: var(--surface); position: relative; overflow: hidden; }
.client-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; }
.client-card.cl-ov::before { background: linear-gradient(90deg, var(--blue-600), var(--blue-400)); }
.client-card.cl-geo::before { background: linear-gradient(90deg, var(--violet-600), #8b5cf6); }
.client-card .cl-ico { width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center; font-size: 22px; }
.cl-ov .cl-ico { background: var(--blue-50); }
.cl-geo .cl-ico { background: var(--violet-50); }
.client-card h3 { font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; margin-top: 18px; color: var(--ink-900); }
.client-card > p { font-size: 0.93rem; color: var(--ink-500); margin-top: 8px; }
.client-card ul { list-style: none; margin-top: 18px; display: grid; gap: 8px; }
.client-card li { font-size: 0.92rem; color: var(--ink-700); padding-left: 22px; position: relative; }
.client-card li::before { content: "›"; position: absolute; left: 6px; color: var(--blue-600); font-weight: 700; }
.cl-geo li::before { color: var(--violet-600); }
.client-card .cl-cta { margin-top: 22px; font-family: var(--font-display); font-weight: 600; font-size: 0.9rem; display: inline-flex; align-items: center; gap: 6px; }
.cl-ov .cl-cta { color: var(--blue-600); }
.cl-geo .cl-cta { color: var(--violet-600); }

/* ---------- Media band ---------- */
.media-band {
  position: relative; border-radius: 20px; overflow: hidden;
  background:
    radial-gradient(500px 300px at 90% 10%, rgba(245,158,11,0.1), transparent 65%),
    linear-gradient(115deg, #e9f2ff 0%, #f2ecff 55%, #fdf6e8 100%);
  color: var(--ink-900); padding: 56px 56px;
  display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 40px; align-items: center;
  border: 1px solid var(--blue-100);
  box-shadow: 0 8px 32px rgba(37,99,235,0.07);
}
.media-band::before {
  content: ""; position: absolute; right: -60px; top: -60px; width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(245,158,11,0.18), transparent 65%);
}
.media-band::after {
  content: ""; position: absolute; left: -40px; bottom: -70px; width: 240px; height: 240px;
  background: radial-gradient(circle, rgba(124,58,237,0.08), transparent 65%);
}
.media-band .mb-title { font-family: var(--font-display); font-size: clamp(1.5rem, 2.6vw, 2.1rem); font-weight: 700; line-height: 1.3; }
.media-band p { color: var(--ink-500); margin-top: 12px; font-size: 0.95rem; max-width: 520px; }
.media-band .mb-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.media-band .mb-tags span { font-size: 12px; padding: 6px 14px; border-radius: 30px; background: var(--surface); border: 1px solid var(--line); color: var(--ink-700); }
.media-band .mb-cta { position: relative; text-align: right; }
.media-band .mb-cta .btn { margin-top: 10px; }

/* ---------- Cases ---------- */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.case-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: 16px; overflow: hidden;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.case-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.case-cover { height: 168px; display: grid; place-items: center; font-family: var(--font-display); font-weight: 700; font-size: 15px; color: rgba(255,255,255,0.9); letter-spacing: 0.02em; }
.case-cover.cv-1 { background: linear-gradient(120deg, #123a5f, #2f72c4); }
.case-cover.cv-2 { background: linear-gradient(120deg, #4c34b8, #8b5cf6); }
.case-cover.cv-3 { background: linear-gradient(120deg, #1a3a6c, #e8a33d); }
.case-body { padding: 22px 24px 24px; }
.case-body .case-tag { font-size: 11px; font-weight: 700; letter-spacing: 0.06em; padding: 4px 10px; border-radius: 30px; }
.case-body .case-tag.t-ov { background: var(--blue-50); color: var(--blue-600); }
.case-body .case-tag.t-geo { background: var(--violet-50); color: var(--violet-600); }
.case-body .case-tag.t-media { background: var(--amber-100); color: var(--amber-600); }
.case-body h4 { font-family: var(--font-display); font-size: 1.08rem; font-weight: 700; margin-top: 12px; color: var(--ink-900); }
.case-body p { font-size: 0.88rem; color: var(--ink-500); margin-top: 8px; }
.case-metrics { display: flex; gap: 22px; margin-top: 16px; padding-top: 16px; border-top: 1px dashed var(--line); }
.case-metrics b { font-family: var(--font-display); font-size: 1.25rem; font-weight: 700; color: var(--blue-600); display: block; }
.case-metrics span { font-size: 11px; color: var(--ink-300); }

/* ---------- Insights ---------- */
.insight-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.insight-card { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 26px; position: relative; overflow: hidden; transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease); }
.insight-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--blue-500), var(--violet-500), transparent); opacity: 0.6; }
.insight-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.insight-card:hover::before { opacity: 1; }
.insight-card .cat { font-size: 11px; font-weight: 700; letter-spacing: 0.06em; color: var(--violet-600); text-transform: uppercase; }
.insight-card h4 { font-family: var(--font-display); font-size: 1.08rem; font-weight: 700; margin-top: 12px; line-height: 1.45; color: var(--ink-900); }
.insight-card p { font-size: 0.88rem; color: var(--ink-500); margin-top: 10px; }
.insight-card .meta { display: flex; align-items: center; gap: 10px; margin-top: 16px; font-size: 12px; color: var(--ink-300); }
.insight-card .meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--ink-300); }

/* ---------- FAQ ---------- */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: grid;
  gap: 14px;
}
.faq-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  transition: box-shadow 0.4s var(--ease), border-color 0.4s;
  position: relative;
}
.faq-item::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--blue-500), var(--violet-500), transparent);
  opacity: 0.55;
}
.faq-item[open] { box-shadow: var(--shadow-md); border-color: var(--blue-200); }
.faq-item[open]::before { opacity: 1; }
.faq-item summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-weight: 600;
  font-size: 1rem;
  color: var(--ink-900);
  user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  flex-shrink: 0;
  width: 30px; height: 30px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: linear-gradient(120deg, var(--blue-50), var(--violet-50));
  border: 1px solid var(--blue-100);
  color: var(--blue-700);
  font-size: 18px; font-weight: 400;
  transition: transform 0.3s var(--ease), background 0.3s;
}
.faq-item[open] summary::after {
  transform: rotate(45deg);
  background: linear-gradient(120deg, var(--blue-600), var(--violet-600));
  color: #fff;
  border-color: transparent;
}
.faq-body {
  padding: 16px 24px 24px;
  color: var(--ink-600);
  font-size: 0.92rem;
  line-height: 1.8;
}
.faq-body p { margin-top: 0; }

/* ---------- CTA ---------- */
.cta-section {
  position: relative; overflow: hidden; padding: 96px 0;
  background:
    radial-gradient(700px 420px at 12% 8%, rgba(37,99,235,0.1), transparent 60%),
    radial-gradient(640px 400px at 88% 92%, rgba(124,58,237,0.09), transparent 60%),
    linear-gradient(135deg, #eaf3ff 0%, #f4efff 50%, #edf5ff 100%);
  color: var(--ink-900);
  border-top: 1px solid var(--line);
}
.cta-grid { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.cta-left h2 { font-family: var(--font-display); font-size: clamp(1.9rem, 3.6vw, 2.8rem); font-weight: 700; line-height: 1.25; letter-spacing: -0.01em; color: var(--ink-900); }
.cta-left h2 em { font-style: normal; color: var(--amber-600); }
.cta-left p { color: var(--ink-500); margin-top: 18px; font-size: 1rem; max-width: 460px; }
.cta-points { margin-top: 30px; display: grid; gap: 14px; }
.cta-points li { list-style: none; display: flex; align-items: center; gap: 12px; font-size: 0.94rem; color: var(--ink-700); }
.cta-points .tick { width: 22px; height: 22px; border-radius: 50%; background: var(--blue-50); border: 1px solid var(--blue-200); display: grid; place-items: center; font-size: 11px; color: var(--blue-600); flex-shrink: 0; }
.cta-form {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 18px; padding: 32px;
  box-shadow: var(--shadow-lg);
}
.cta-form h3 { font-family: var(--font-display); font-size: 1.25rem; font-weight: 700; color: var(--ink-900); }
.cta-form > p { font-size: 0.88rem; color: var(--ink-500); margin-top: 6px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 22px; }
.field { display: grid; gap: 6px; }
.field label { font-size: 12px; color: var(--ink-500); font-weight: 500; }
.field input, .field select, .field textarea {
  background: var(--bg); border: 1px solid var(--line);
  border-radius: 8px; padding: 12px 14px; color: var(--ink-900); font-size: 0.9rem;
  font-family: var(--font-body);
  transition: border-color 0.3s var(--ease), background 0.3s;
}
.field textarea { resize: vertical; min-height: 88px; }
.field input::placeholder, .field textarea::placeholder { color: var(--ink-300); }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--blue-400); background: var(--surface); }
.field select option { color: var(--ink-900); }
.field--full { grid-column: 1 / -1; }
.cta-form .btn { width: 100%; margin-top: 18px; }
.form-note { text-align: center; font-size: 11px; color: var(--ink-300); margin-top: 12px; }

/* ---------- Footer (dark) ---------- */
.footer {
  position: relative; overflow: hidden;
  background:
    radial-gradient(800px 420px at 92% -10%, rgba(37,99,235,0.18), transparent 60%),
    radial-gradient(700px 380px at 0% 110%, rgba(124,58,237,0.14), transparent 60%),
    linear-gradient(160deg, #0b1730 0%, #101a3a 55%, #171a44 100%);
  color: rgba(255,255,255,0.68);
  padding: 72px 0 40px;
  border-top: 0;
}
.footer::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--blue-600), var(--violet-600) 55%, var(--amber-500));
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 44px; position: relative; z-index: 1; }
.footer .logo {
  display: inline-flex;
  background: rgba(255,255,255,0.96);
  padding: 6px 10px;
  border-radius: 10px;
  box-shadow: 0 4px 14px rgba(0,0,0,0.12);
}
.footer .logo-img { height: 56px; }
.footer-about p { font-size: 0.88rem; margin-top: 16px; max-width: 300px; line-height: 1.8; color: rgba(255,255,255,0.6); }
.footer h5 { font-size: 13px; font-weight: 700; color: #fff; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 18px; }
.footer ul { list-style: none; display: grid; gap: 10px; }
.footer ul a { font-size: 0.88rem; color: rgba(255,255,255,0.6); transition: color 0.3s; }
.footer ul a:hover { color: #93c5fd; }
.footer-contact li { display: flex; gap: 10px; font-size: 0.88rem; align-items: flex-start; color: rgba(255,255,255,0.6); }
.footer-contact .ic { color: #818cf8; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.12); margin-top: 56px; padding-top: 26px; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 12px; color: rgba(255,255,255,0.42); position: relative; z-index: 1; }
.footer-bottom .links { display: flex; gap: 22px; }
.footer-bottom .links a { color: rgba(255,255,255,0.42); transition: color 0.3s; }
.footer-bottom .links a:hover { color: rgba(255,255,255,0.85); }

/* ---------- WeChat QR code ---------- */
.wechat-fab {
  position: fixed; right: 22px; bottom: 22px; z-index: 999;
  width: 56px; height: 56px; border-radius: 50%;
  background: #07C160; color: #fff;
  border: none; cursor: pointer;
  display: grid; place-items: center;
  box-shadow: 0 6px 20px rgba(7,193,96,0.35);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.wechat-fab:hover { transform: translateY(-3px); box-shadow: 0 10px 28px rgba(7,193,96,0.45); }
.wechat-fab svg { width: 28px; height: 28px; fill: currentColor; }
.wechat-fab__label {
  position: absolute; right: 64px; white-space: nowrap;
  background: rgba(15,23,42,0.85); color: #fff;
  padding: 6px 10px; border-radius: 8px; font-size: 12px;
  opacity: 0; pointer-events: none; transform: translateX(8px);
  transition: opacity 0.3s, transform 0.3s;
}
.wechat-fab:hover .wechat-fab__label { opacity: 1; transform: translateX(0); }

.wechat-modal {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(15,23,42,0.65);
  display: grid; place-items: center;
  opacity: 0; pointer-events: none;
  transition: opacity 0.25s var(--ease);
  padding: 20px;
}
.wechat-modal.open { opacity: 1; pointer-events: auto; }
.wechat-modal__card {
  background: #fff; border-radius: 18px;
  padding: 28px 32px 32px; max-width: 360px; width: 100%;
  text-align: center; box-shadow: var(--shadow-lg);
  transform: translateY(16px) scale(0.96);
  transition: transform 0.3s var(--ease);
}
.wechat-modal.open .wechat-modal__card { transform: translateY(0) scale(1); }
.wechat-modal__card h4 { font-size: 1.15rem; font-weight: 700; color: var(--ink-900); margin-bottom: 6px; }
.wechat-modal__card p { font-size: 0.9rem; color: var(--ink-500); margin-bottom: 18px; }
.wechat-modal__card img { width: 220px; height: auto; margin: 0 auto; border-radius: 10px; }
.wechat-modal__close {
  position: absolute; top: 14px; right: 14px;
  width: 32px; height: 32px; border-radius: 50%;
  background: rgba(0,0,0,0.06); border: none; cursor: pointer;
  display: grid; place-items: center; font-size: 18px; color: var(--ink-700);
  transition: background 0.2s;
}
.wechat-modal__close:hover { background: rgba(0,0,0,0.12); }

.footer-qr { margin-top: 18px; }
.footer-qr__thumb {
  width: 92px; height: 92px; border-radius: 10px;
  background: #fff; padding: 6px; cursor: pointer;
  box-shadow: 0 4px 14px rgba(0,0,0,0.12);
  transition: transform 0.3s var(--ease);
}
.footer-qr__thumb:hover { transform: translateY(-2px); }
.footer-qr__caption {
  display: block; margin-top: 8px; font-size: 12px; color: rgba(255,255,255,0.55);
}

@media (max-width: 768px) {
  .wechat-fab { width: 50px; height: 50px; right: 16px; bottom: 16px; }
  .wechat-fab svg { width: 24px; height: 24px; }
  .wechat-fab__label { display: none; }
  .wechat-modal__card { padding: 24px; }
  .wechat-modal__card img { width: 200px; }
}

/* ============================================================
   详情页扩展样式
   ============================================================ */

/* 服务路径区块（overseas 详情） */
.path-block {
  background: var(--surface); border: 1px solid var(--line); border-radius: 16px;
  padding: 36px 36px 32px; margin-bottom: 24px; position: relative; overflow: hidden;
  transition: box-shadow 0.4s var(--ease), border-color 0.4s;
}
.path-block::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--blue-600), var(--blue-400), transparent);
}
.path-block.pb-violet::before { background: linear-gradient(90deg, var(--violet-600), var(--violet-400), transparent); }
.path-block:hover { box-shadow: var(--shadow-md); border-color: var(--blue-200); }
.path-block.pb-violet:hover { border-color: var(--violet-200); }
.path-block .pb-head { display: flex; align-items: flex-start; gap: 18px; margin-bottom: 24px; }
.path-block .pb-num {
  flex-shrink: 0;
  width: 52px; height: 52px; border-radius: 14px;
  background: linear-gradient(135deg, var(--blue-600), var(--blue-400));
  color: #fff; display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 700; font-size: 17px;
  box-shadow: 0 6px 18px rgba(37,99,235,0.22);
}
.path-block.pb-violet .pb-num { background: linear-gradient(135deg, var(--violet-600), var(--violet-400)); box-shadow: 0 6px 18px rgba(124,58,237,0.22); }
.path-block .pb-title h3 { font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; color: var(--ink-900); line-height: 1.3; }
.path-block .pb-title p { font-size: 0.9rem; color: var(--ink-500); margin-top: 6px; }
.path-block .pb-sub { font-size: 12px; font-weight: 700; letter-spacing: 0.08em; color: var(--blue-600); text-transform: uppercase; margin: 26px 0 12px; }
.path-block.pb-violet .pb-sub { color: var(--violet-600); }
.path-block .pb-sub:first-of-type { margin-top: 0; }
.detail-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 28px; }
.detail-list li {
  position: relative; padding-left: 26px;
  font-size: 0.9rem; color: var(--ink-700); line-height: 1.65;
}
.detail-list li::before {
  content: "✓";
  position: absolute; left: 0; top: 1px;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--blue-50); color: var(--blue-600);
  display: grid; place-items: center;
  font-size: 10px; font-weight: 700;
}
.path-block.pb-violet .detail-list li::before { background: var(--violet-50); color: var(--violet-600); }
.detail-list li b { color: var(--ink-900); font-weight: 600; }
.detail-list .sub-item { grid-column: 1 / -1; font-size: 0.86rem; color: var(--ink-500); }
.pb-note {
  margin-top: 22px; padding: 14px 18px; border-radius: 10px;
  background: var(--blue-50); font-size: 0.84rem; color: var(--ink-700);
  display: flex; gap: 10px; align-items: flex-start;
}
.path-block.pb-violet .pb-note { background: var(--violet-50); }
.pb-note b { color: var(--blue-700); }
.path-block.pb-violet .pb-note b { color: var(--violet-700); }

/* 服务概况卡片（overseas 详情） */
.svc-overview-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.svc-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: 14px;
  padding: 26px; position: relative; overflow: hidden;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.svc-card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--blue-600), var(--blue-400)); }
.svc-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.svc-card .svc-ico { width: 44px; height: 44px; border-radius: 12px; background: var(--blue-50); color: var(--blue-600); display: grid; place-items: center; font-size: 20px; }
.svc-card h4 { font-family: var(--font-display); font-size: 1.06rem; font-weight: 700; margin-top: 16px; color: var(--ink-900); }
.svc-card p { font-size: 0.86rem; color: var(--ink-500); margin-top: 8px; line-height: 1.7; }

/* 版本对比表（GEO 详情） */
.plan-table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 16px; background: var(--surface); box-shadow: var(--shadow-md); }
.plan-table { width: 100%; border-collapse: collapse; min-width: 760px; }
.plan-table th, .plan-table td { padding: 15px 18px; text-align: left; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
.plan-table thead th { background: var(--violet-50); font-family: var(--font-display); font-size: 0.95rem; font-weight: 700; color: var(--ink-900); border-bottom: 2px solid var(--violet-100); }
.plan-table thead th .sub { display: block; font-size: 11px; font-weight: 500; color: var(--ink-500); margin-top: 2px; font-family: var(--font-body); }
.plan-table thead th.plan-name { font-size: 1.05rem; }
.plan-table thead th .star { color: var(--amber-500); }
.plan-table tbody th { font-size: 0.88rem; font-weight: 600; color: var(--ink-900); background: var(--bg); width: 190px; }
.plan-table tbody tr:last-child th, .plan-table tbody tr:last-child td { border-bottom: 0; }
.plan-table td { font-size: 0.86rem; color: var(--ink-700); }
.plan-table td b { color: var(--violet-700); }
.plan-table .row-group td {
  background: var(--violet-50); font-weight: 700; color: var(--violet-700);
  font-size: 0.86rem; letter-spacing: 0.04em;
}
.plan-table .plan-mark { color: #16a34a; font-weight: 700; }
.plan-table .plan-dash { color: var(--ink-300); }

/* 服务保障/流程 三步条 */
.steps-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.step-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 28px;
  position: relative; transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.step-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.step-card .st-ico { width: 46px; height: 46px; border-radius: 12px; background: var(--violet-50); color: var(--violet-600); display: grid; place-items: center; font-size: 20px; }
.step-card h4 { font-family: var(--font-display); font-size: 1.1rem; font-weight: 700; margin-top: 16px; color: var(--ink-900); }
.step-card p { font-size: 0.88rem; color: var(--ink-500); margin-top: 8px; }

/* 详情页快速导航 */
.sub-nav {
  position: sticky; top: 72px; z-index: 50;
  background: rgba(255,255,255,0.94); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.sub-nav-inner { display: flex; align-items: center; gap: 8px; overflow-x: auto; padding: 12px 24px; max-width: 1200px; margin: 0 auto; }
.sub-nav-inner a {
  flex-shrink: 0; font-size: 0.85rem; font-weight: 500; color: var(--ink-500);
  padding: 8px 16px; border-radius: 30px; transition: all 0.3s var(--ease);
}
.sub-nav-inner a:hover { color: var(--blue-700); background: var(--blue-50); }
.sub-nav-inner a.active { color: #fff; background: var(--blue-700); }
.sub-nav--violet a:hover { color: var(--violet-700); background: var(--violet-50); }
.sub-nav--violet a.active { background: var(--violet-600); color: #fff; }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.visible { opacity: 1; transform: none; }

/* ============================================================
   新闻栏目样式（news.html 列表 / 文章页 / 首页最新动态）
   ============================================================ */

/* 导航当前页高亮 */
.nav-links a.nav-active { color: var(--blue-700); }
.nav-links a.nav-active::after { width: 100%; }

/* 文章页头部 */
.sub-hero--article { background: linear-gradient(135deg, #eef4fc 0%, #f3f0fd 60%, #f5f9ff 100%); }
.article-head { position: relative; z-index: 1; max-width: 820px; }
.article-cat {
  display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: 0.05em;
  padding: 6px 14px; border-radius: 30px; margin-bottom: 16px;
}
.article-cat.cat-blue { background: var(--blue-100); color: var(--blue-700); }
.article-cat.cat-violet { background: var(--violet-100); color: var(--violet-700); }
.article-cat.cat-amber { background: var(--amber-100); color: var(--amber-600); }
.article-cat.cat-teal { background: #ccfbf1; color: #0f766e; }
.article-head h1 { font-size: clamp(1.7rem, 3.6vw, 2.6rem); line-height: 1.3; letter-spacing: -0.01em; font-weight: 700; }
.article-meta { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 18px; font-size: 13px; color: var(--ink-500); }
.article-meta .dot-sep { width: 4px; height: 4px; border-radius: 50%; background: var(--ink-300); }

/* 文章正文 */
.article-body { padding: 56px 0 72px; }
.article-container { max-width: 820px; }
.article-lead {
  font-size: 1.05rem; color: var(--ink-700); line-height: 1.9;
  padding: 20px 24px; border-radius: 14px; margin-bottom: 36px;
  background: linear-gradient(120deg, var(--blue-50), var(--violet-50));
  border: 1px solid var(--blue-100); border-left: 4px solid var(--blue-600);
}
.article-body h2 {
  font-family: var(--font-display); font-size: 1.4rem; font-weight: 700;
  margin: 44px 0 16px; padding-top: 8px; color: var(--ink-900);
  display: flex; align-items: center; gap: 10px;
}
.article-body h2::before {
  content: ""; width: 6px; height: 22px; border-radius: 3px; flex-shrink: 0;
  background: linear-gradient(180deg, var(--blue-600), var(--violet-600));
}
.article-body p { font-size: 1rem; line-height: 1.95; color: var(--ink-700); margin-bottom: 18px; }
.article-body ul, .article-body ol { margin: 0 0 18px 22px; display: grid; gap: 8px; }
.article-body li { font-size: 0.98rem; color: var(--ink-700); line-height: 1.85; list-style: disc; }
.article-body strong, .article-body b { color: var(--ink-900); }

/* 文章内 FAQ */
.article-faq { display: grid; gap: 12px; margin: 8px 0 0; }
.article-faq .faq-item summary { padding: 16px 20px; font-size: 0.95rem; }
.article-faq .faq-body { padding: 12px 20px 20px; }

/* 文末 CTA */
.article-cta {
  margin-top: 52px; padding: 30px 32px; border-radius: 18px;
  background:
    radial-gradient(480px 240px at 100% 0%, rgba(124,58,237,0.08), transparent 60%),
    linear-gradient(120deg, var(--blue-50), var(--violet-50));
  border: 1px solid var(--blue-100);
  display: flex; align-items: center; gap: 22px; flex-wrap: wrap;
}
.article-cta .ac-emoji { font-size: 34px; }
.article-cta .ac-text { flex: 1 1 260px; }
.article-cta h3 { font-family: var(--font-display); font-size: 1.15rem; font-weight: 700; color: var(--ink-900); }
.article-cta p { font-size: 0.88rem; color: var(--ink-500); margin-top: 6px; }
.article-back { margin-top: 36px; }
.article-back a { font-size: 0.9rem; color: var(--blue-600); font-weight: 600; }
.article-back a:hover { color: var(--blue-900); }

/* 新闻列表页 */
.news-list-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; position: relative; z-index: 1; }
.news-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: 16px;
  padding: 26px 28px; position: relative; overflow: hidden;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s;
  display: flex; flex-direction: column;
}
.news-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--blue-500), var(--violet-500), transparent);
  opacity: 0.6;
}
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--blue-200); }
.news-card:hover::before { opacity: 1; }
.nc-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.news-cat { font-size: 11px; font-weight: 700; letter-spacing: 0.05em; padding: 4px 11px; border-radius: 30px; white-space: nowrap; }
.news-cat.cat-blue { background: var(--blue-50); color: var(--blue-600); }
.news-cat.cat-violet { background: var(--violet-50); color: var(--violet-600); }
.news-cat.cat-amber { background: var(--amber-100); color: var(--amber-600); }
.news-cat.cat-teal { background: #ccfbf1; color: #0f766e; }
.nc-date { font-size: 12px; color: var(--ink-300); white-space: nowrap; }
.nc-title { font-family: var(--font-display); font-size: 1.18rem; font-weight: 700; line-height: 1.45; margin-top: 14px; }
.nc-title a { color: var(--ink-900); transition: color 0.3s; }
.nc-title a:hover { color: var(--blue-600); }
.nc-summary {
  font-size: 0.9rem; color: var(--ink-500); margin-top: 10px; line-height: 1.75;
  display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.nc-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: auto; padding-top: 18px; font-size: 12px; color: var(--ink-300); }
.nc-link { font-family: var(--font-display); font-weight: 600; font-size: 0.9rem; color: var(--blue-600); white-space: nowrap; }
.nc-link:hover { color: var(--blue-900); }
.news-empty {
  grid-column: 1 / -1; text-align: center; padding: 60px 20px; color: var(--ink-500);
  background: var(--surface); border: 2px dashed var(--line); border-radius: 16px;
}
.news-empty .ne-ico { font-size: 40px; margin-bottom: 12px; }
.news-empty h3 { font-family: var(--font-display); font-size: 1.2rem; color: var(--ink-900); margin-bottom: 8px; }
.news-empty p { font-size: 0.9rem; }

/* 首页最新动态 */
.home-news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; position: relative; z-index: 1; }
.home-news-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: 16px;
  padding: 24px 26px; position: relative; overflow: hidden; display: flex; flex-direction: column;
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s;
}
.home-news-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--violet-500), var(--blue-500), transparent); opacity: 0.55;
}
.home-news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--violet-200); }
.hn-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.hn-date { font-size: 11px; color: var(--ink-300); white-space: nowrap; }
.home-news-card h4 { font-family: var(--font-display); font-size: 1.02rem; font-weight: 700; line-height: 1.5; margin-top: 12px; }
.home-news-card h4 a { color: var(--ink-900); transition: color 0.3s; }
.home-news-card h4 a:hover { color: var(--violet-600); }
.home-news-card p { font-size: 0.86rem; color: var(--ink-500); margin-top: 10px; line-height: 1.7; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.home-news-card .hn-link { margin-top: auto; padding-top: 14px; font-family: var(--font-display); font-weight: 600; font-size: 0.86rem; color: var(--violet-600); }
.home-news-card .hn-link:hover { color: var(--violet-800, #5b21b6); }
.home-news-empty { grid-column: 1 / -1; text-align: center; color: var(--ink-300); font-size: 0.9rem; padding: 24px 0; }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { order: -1; justify-content: center; }
  .hero-globe { width: 240px; height: 240px; }
  .ov-wrap { grid-template-columns: 1fr 1fr; }
  .geo-grid { grid-template-columns: 1fr 1fr; }
  .geo-platforms { grid-template-columns: repeat(3, 1fr); }
  .cta-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .media-band { grid-template-columns: 1fr; }
  .media-band .mb-cta { text-align: left; }
  .intro-banner { grid-template-columns: 1fr; }
  .ib-right { justify-content: flex-start; }
  .ai-panel-grid { grid-template-columns: 1fr; }
  .svc-overview-grid { grid-template-columns: 1fr 1fr; }
  .home-news-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .container { padding: 0 18px; }
  .section { padding: 64px 0; }
  .section--tight { padding: 52px 0; }
  html { scroll-padding-top: 76px; }

  /* Nav & mobile menu */
  .nav-inner { height: 64px; }
  .nav-links, .nav-cta .btn { display: none; }
  .nav-toggle { display: grid; place-items: center; width: 44px; height: 44px; margin-right: -10px; }
  .nav-toggle svg { width: 24px; height: 24px; }
  .nav-links.open {
    display: flex; position: absolute; top: 64px; left: 0; right: 0;
    flex-direction: column; align-items: flex-start; gap: 2px;
    background: var(--surface); padding: 14px 18px 20px;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-lg);
    animation: menuIn 0.28s var(--ease);
  }
  @keyframes menuIn { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: none; } }
  .nav-links.open a { padding: 12px 4px; font-size: 0.98rem; width: 100%; color: var(--ink-700); border-bottom: 1px solid var(--line-soft); }
  .nav-links.open li:last-child a { border-bottom: 0; }
  .nav-links.open a:active { color: var(--blue-700); }

  /* Hero */
  .hero { padding: 118px 0 60px; }
  .hero-kicker { font-size: 12px; padding: 7px 14px; }
  .hero p.lead { font-size: 0.98rem; }
  .hero-cta { gap: 10px; margin-top: 28px; }
  .hero-cta .btn { flex: 1 1 auto; min-height: 48px; padding: 13px 20px; font-size: 0.92rem; }
  .hero-platforms { margin-top: 22px; gap: 8px; }
  .hp-chips { font-size: 11px; }
  .hero-globe { width: 210px; height: 210px; }
  .hero-globe::before { width: 168px; height: 168px; }
  .hero-globe::after { width: 128px; height: 128px; }
  .globe-core { width: 64px; height: 64px; }
  .hero-float { display: none; }

  /* Stats */
  .stats { padding: 44px 0; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); row-gap: 26px; gap: 16px; }
  .stat b { font-size: 1.9rem; }

  /* Grids collapse */
  .client-grid, .case-grid, .insight-grid, .geo-grid { grid-template-columns: 1fr; }
  .ov-wrap { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .geo-platforms { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .geo-platforms-wrap { padding: 24px 18px; margin-top: 28px; }
  .geo-plat { padding: 14px 8px; }
  .geo-plat b { font-size: 0.95rem; }

  /* Footer */
  .footer { padding: 56px 0 32px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 10px; }

  /* Forms: 16px prevents iOS zoom-on-focus */
  .field input, .field select, .field textarea { font-size: 16px; padding: 13px 14px; }
  .cta-form { padding: 24px 20px; }
  .cta-form .btn { min-height: 48px; }
  .form-note { font-size: 12px; }

  /* Media band & intro */
  .media-band { padding: 36px 22px; border-radius: 16px; }
  .intro-banner { padding: 32px 22px; border-radius: 16px; }
  .intro-banner .btn { width: 100%; }
  .case-metrics { flex-wrap: wrap; gap: 14px; }

  /* Buttons: comfortable touch targets */
  .btn { min-height: 48px; }
  .btn--primary, .btn--amber { padding: 13px 24px; }

  /* Detail pages */
  .sub-hero { padding: 104px 0 48px; }
  .sub-hero p.lead { font-size: 0.98rem; }
  .sub-hero .sub-tags span { font-size: 11px; padding: 6px 12px; }
  .detail-list { grid-template-columns: 1fr; gap: 8px; }
  .detail-list li { font-size: 0.9rem; }
  .svc-overview-grid { grid-template-columns: 1fr; }
  .steps-row { grid-template-columns: 1fr; }
  .path-block { padding: 24px 20px 22px; }
  .path-block .pb-head { flex-direction: column; gap: 12px; }
  .path-block .pb-num { width: 46px; height: 46px; font-size: 15px; }
  .path-block .pb-title h3 { font-size: 1.15rem; }
  .pb-note { font-size: 0.84rem; padding: 12px 14px; }

  /* Sub-nav quick links */
  .sub-nav { top: 64px; }
  .sub-nav-inner { padding: 10px 14px; gap: 6px; }
  .sub-nav-inner a { font-size: 0.82rem; padding: 8px 14px; }
  .sub-nav-inner::-webkit-scrollbar { display: none; }
  .sub-nav-inner { scrollbar-width: none; }

  /* Tables: horizontal scroll affordance */
  .plan-table-wrap { margin: 0 -18px; border-radius: 0; border-left: 0; border-right: 0; }
  .plan-table { min-width: 680px; }
  .plan-table th, .plan-table td { padding: 12px 14px; font-size: 0.84rem; }
  .plan-table tbody th { width: 130px; }

  /* News */
  .news-list-grid { grid-template-columns: 1fr; }
  .home-news-grid { grid-template-columns: 1fr; }
  .article-body { padding: 40px 0 56px; }
  .article-lead { font-size: 0.98rem; padding: 16px 18px; }
  .article-body h2 { font-size: 1.22rem; margin: 36px 0 14px; }
  .article-cta { padding: 24px 20px; }
}

/* Small phones */
@media (max-width: 420px) {
  .container { padding: 0 14px; }
  .stats-grid { gap: 12px; }
  .stat b { font-size: 1.6rem; }
  .stat span { font-size: 12px; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
  .section-title { font-size: 1.55rem; }
  .eyebrow { font-size: 12px; }
  .geo-platforms { grid-template-columns: 1fr 1fr; }
  .case-cover { height: 130px; }
  .logo-img { height: 36px; }
  .logo-text { font-size: 1.25rem; }
  .footer .logo-img { height: 48px; }
  .footer-bottom .links { gap: 14px; flex-wrap: wrap; }
}

/* Touch devices: skip hover lifts */
@media (hover: none) {
  .ov-card:hover, .geo-card:hover, .case-card:hover, .insight-card:hover,
  .svc-card:hover, .step-card:hover { transform: none; }
  .btn:hover { transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}