/* ============================================================
   SKABsee 录播业务官网 - 全站样式
   深色科技风 + 蓝色主色 + 录制红点强调
   ============================================================ */

:root {
  --bg: #0a0d13;
  --bg-2: #0e131c;
  --card: #131a25;
  --card-2: #17202d;
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #e9eff8;
  --muted: #93a0b4;
  --dim: #6b7a90;
  --brand: #4c9dff;
  --brand-2: #2759ea;
  --brand-soft: rgba(76, 157, 255, 0.14);
  --red: #ff544c;
  --green: #22c55e;
  --radius: 16px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --maxw: 1200px;
  font-synthesis-weight: none;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { margin: 0; padding: 0; list-style: none; }

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

/* ---------- 顶部导航 ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 60;
  background: rgba(10, 13, 19, 0.72);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(14px);
  transition: background 0.25s ease, border-color 0.25s ease;
}
.site-header.scrolled {
  background: rgba(10, 13, 19, 0.92);
  border-bottom-color: var(--line);
}
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
  height: 72px;
  display: flex;
  align-items: center;
  gap: 32px;
}
.brand { display: flex; align-items: center; gap: 12px; flex: none; }
.brand-mark {
  width: 38px; height: 38px; border-radius: 10px;
  background: linear-gradient(135deg, #4fa0ff, #224fe0);
  display: grid; place-items: center;
  font-weight: 800; font-size: 20px; color: #fff;
  position: relative;
  box-shadow: 0 8px 22px rgba(39, 89, 234, 0.35);
}
.brand-mark::after {
  content: "";
  position: absolute; right: 5px; bottom: 5px;
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 8px rgba(255, 84, 76, 0.8);
}
.brand-text b { display: block; font-size: 19px; letter-spacing: 0.3px; line-height: 1.2; }
.brand-text span { font-size: 12px; color: var(--dim); letter-spacing: 0.6px; }

.nav-links { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-links a {
  padding: 8px 14px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 15px;
  transition: color 0.2s, background 0.2s;
}
.nav-links a:hover { color: var(--text); background: rgba(255, 255, 255, 0.05); }
.nav-links a.active { color: var(--brand); background: var(--brand-soft); }

.nav-cta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px;
  border-radius: 10px;
  background: linear-gradient(135deg, #4c9dff, #2759ea);
  color: #fff; font-weight: 600; font-size: 15px;
  box-shadow: 0 10px 26px rgba(39, 89, 234, 0.35);
  transition: transform 0.2s, box-shadow 0.2s;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 14px 32px rgba(39, 89, 234, 0.45); }

.nav-toggle { display: none; }

/* ---------- 通用块 ---------- */
.section { padding: 96px 0; position: relative; }
.section-tight { padding: 64px 0; }
.section-head { max-width: 720px; margin-bottom: 48px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 13px; letter-spacing: 2px; color: var(--brand);
  text-transform: uppercase; margin-bottom: 14px;
}
.eyebrow::before {
  content: ""; width: 22px; height: 2px;
  background: linear-gradient(90deg, var(--brand), transparent);
}
h1, h2, h3, h4 { margin: 0; font-weight: 700; letter-spacing: 0.2px; }
h1 { font-size: clamp(34px, 4.4vw, 56px); line-height: 1.2; }
h2 { font-size: clamp(26px, 2.8vw, 38px); line-height: 1.3; }
h3 { font-size: 21px; }
.lead { color: var(--muted); font-size: clamp(15px, 1.2vw, 18px); margin-top: 16px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 26px; border-radius: 12px; font-weight: 600;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
  cursor: pointer; border: 1px solid transparent;
}
.btn-primary {
  background: linear-gradient(135deg, #4c9dff, #2759ea);
  color: #fff; box-shadow: 0 12px 30px rgba(39, 89, 234, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 40px rgba(39, 89, 234, 0.45); }
.btn-ghost {
  border-color: var(--line-strong); color: var(--text);
  background: rgba(255, 255, 255, 0.03);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.08); transform: translateY(-2px); }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }

.card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.015));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.card:hover { border-color: rgba(76, 157, 255, 0.35); box-shadow: 0 18px 46px rgba(0, 0, 0, 0.35); }

.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex; align-items: center;
  padding: 140px 0 90px;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background-size: cover; background-position: center 40%;
  transform: scale(1.02);
  filter: saturate(1.05);
}
.hero::before {
  content: "";
  position: absolute; inset: 0; z-index: 1;
  background:
    radial-gradient(1200px 600px at 20% 10%, rgba(39, 89, 234, 0.35), transparent 60%),
    linear-gradient(90deg, rgba(9, 12, 18, 0.96) 0%, rgba(9, 12, 18, 0.82) 42%, rgba(9, 12, 18, 0.45) 100%);
}
.hero::after {
  content: "";
  position: absolute; inset: auto 0 0 0; height: 180px; z-index: 1;
  background: linear-gradient(180deg, transparent, var(--bg));
}
.hero-inner { position: relative; z-index: 2; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; width: 100%; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 16px; border-radius: 999px;
  border: 1px solid rgba(76, 157, 255, 0.35);
  background: rgba(76, 157, 255, 0.10);
  color: #b9d6ff; font-size: 13px; letter-spacing: 0.6px;
}
.hero-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--red); box-shadow: 0 0 10px rgba(255, 84, 76, 0.8); }
.hero h1 { margin-top: 24px; max-width: 760px; }
.hero h1 em {
  font-style: normal;
  background: linear-gradient(120deg, #7fbaff, #4c9dff 45%, #a7c9ff);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .lead { max-width: 620px; }
.hero-stats {
  display: flex; flex-wrap: wrap; gap: 40px; margin-top: 56px;
  padding-top: 28px; border-top: 1px solid var(--line);
  max-width: 680px;
}
.stat b { display: block; font-size: 30px; font-weight: 800; letter-spacing: 0.4px; }
.stat b span { font-size: 15px; color: var(--brand); margin-left: 4px; }
.stat p { margin: 2px 0 0; color: var(--dim); font-size: 13px; }

/* ---------- 产品总览 ---------- */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.product-card {
  display: flex; flex-direction: column;
  overflow: hidden; padding: 0;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
}
.product-card:hover { transform: translateY(-6px); border-color: rgba(76, 157, 255, 0.4); box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5); }
.product-media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: #0d1218; }
.product-media img { width: 100%; height: 100%; object-fit: cover; opacity: 0.92; transition: transform 0.5s, opacity 0.5s; }
.product-card:hover .product-media img { transform: scale(1.04); opacity: 1; }
.product-media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(13, 18, 24, 0.95));
}
.product-tag {
  position: absolute; left: 18px; top: 18px; z-index: 2;
  padding: 5px 12px; border-radius: 999px;
  font-size: 12px; letter-spacing: 0.6px;
  background: rgba(10, 14, 20, 0.72); border: 1px solid var(--line-strong);
  color: #cfe1f7; backdrop-filter: blur(6px);
}
.product-body { padding: 24px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.product-body h3 { font-size: 24px; }
.product-body .en { color: var(--dim); font-size: 12px; letter-spacing: 1.4px; text-transform: uppercase; margin-bottom: 8px; }
.product-body p { color: var(--muted); font-size: 14.5px; margin: 10px 0 18px; }
.product-body ul { display: grid; gap: 10px; margin-bottom: 24px; }
.product-body li { display: flex; gap: 10px; color: #c7d3e4; font-size: 14px; }
.check {
  flex: none; width: 18px; height: 18px; margin-top: 4px; border-radius: 50%;
  background: var(--brand-soft); color: var(--brand);
  display: grid; place-items: center; font-size: 11px; font-weight: 700;
}
.product-link {
  margin-top: auto; display: inline-flex; align-items: center; gap: 6px;
  color: var(--brand); font-weight: 600; font-size: 14.5px;
}
.product-link::after { content: "→"; transition: transform 0.2s; }
.product-card:hover .product-link::after { transform: translateX(4px); }

/* ---------- 能力特性 ---------- */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature {
  padding: 28px; border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
  transition: background 0.25s, border-color 0.25s;
}
.feature:hover { background: rgba(76, 157, 255, 0.055); border-color: rgba(76, 157, 255, 0.28); }
.feature-icon {
  width: 46px; height: 46px; border-radius: 12px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(76, 157, 255, 0.22), rgba(39, 89, 234, 0.10));
  border: 1px solid rgba(76, 157, 255, 0.25);
  color: #9cc8ff;
}
.feature h4 { margin: 18px 0 8px; font-size: 17px; }
.feature p { margin: 0; color: var(--muted); font-size: 14px; }

/* ---------- 架构流程 ---------- */
.flow {
  display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  align-items: center; gap: 8px;
  padding: 36px 28px; border-radius: 18px;
  border: 1px solid var(--line);
  background:
    radial-gradient(600px 200px at 50% 0%, rgba(76, 157, 255, 0.12), transparent 70%),
    rgba(255, 255, 255, 0.02);
}
.flow-node { text-align: center; padding: 16px 8px; }
.flow-node .ico {
  width: 54px; height: 54px; margin: 0 auto 12px; border-radius: 14px;
  display: grid; place-items: center;
  background: rgba(76, 157, 255, 0.12); border: 1px solid rgba(76, 157, 255, 0.28);
  color: #9cc8ff;
}
.flow-node b { display: block; font-size: 15px; }
.flow-node span { color: var(--dim); font-size: 12.5px; }
.flow-arrow { color: rgba(120, 160, 210, 0.55); font-size: 22px; }

/* ---------- 方案 ---------- */
.solution-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.solution {
  position: relative; overflow: hidden;
  border-radius: var(--radius); border: 1px solid var(--line);
  min-height: 220px; display: flex; align-items: flex-end;
  background: #0d1219;
}
.solution img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.55; }
.solution::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(10, 13, 19, 0.1) 20%, rgba(10, 13, 19, 0.94));
}
.solution-body { position: relative; z-index: 2; padding: 26px; }
.solution-body span { color: var(--brand); font-size: 12.5px; letter-spacing: 1.2px; }
.solution-body h3 { margin: 6px 0 8px; font-size: 20px; }
.solution-body p { margin: 0; color: var(--muted); font-size: 14px; }

/* ---------- 规格表 ---------- */
.spec-table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.spec-table th, .spec-table td { padding: 14px 16px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.spec-table th { width: 190px; color: var(--dim); font-weight: 500; }
.spec-table td { color: #cfdaea; }
.spec-table tr:last-child td, .spec-table tr:last-child th { border-bottom: 0; }

/* ---------- CTA ---------- */
.cta-band {
  position: relative; overflow: hidden;
  border-radius: 20px; padding: 54px 48px;
  display: flex; align-items: center; justify-content: space-between; gap: 32px;
  background:
    radial-gradient(700px 300px at 15% 0%, rgba(76, 157, 255, 0.30), transparent 65%),
    linear-gradient(135deg, #101827, #0c1220);
  border: 1px solid rgba(76, 157, 255, 0.28);
}
.cta-band h2 { max-width: 560px; font-size: clamp(24px, 2.4vw, 32px); }
.cta-band p { color: var(--muted); margin: 10px 0 0; }
.cta-band .btn-row { margin-top: 0; flex: none; }

/* ---------- 页脚 ---------- */
.site-footer {
  margin-top: 40px;
  border-top: 1px solid var(--line);
  background: #080b11;
  padding: 64px 0 36px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.2fr; gap: 40px; }
.footer-brand p { color: var(--dim); font-size: 13.5px; max-width: 320px; margin: 16px 0 0; }
.footer h5 { font-size: 13px; color: var(--muted); letter-spacing: 1.2px; margin: 0 0 16px; font-weight: 600; }
.footer a, .footer li { display: block; color: var(--dim); font-size: 13.5px; padding: 4px 0; }
.footer a:hover { color: var(--brand); }
.footer-bottom {
  margin-top: 44px; padding-top: 22px; border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  color: var(--dim); font-size: 12.5px;
}

/* ---------- 右侧微信客服悬浮窗（参考 7e.hk 交互） ---------- */
.dock {
  position: fixed; right: 20px; top: 50%; transform: translateY(-50%);
  z-index: 80; display: flex; flex-direction: column; gap: 10px;
}
.dock-btn {
  width: 52px; height: 52px; border-radius: 14px; border: 1px solid var(--line-strong);
  background: rgba(16, 21, 30, 0.92); backdrop-filter: blur(10px);
  display: grid; place-items: center; cursor: pointer; color: #cfe0f5;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
  position: relative;
}
.dock-btn:hover { background: rgba(39, 89, 234, 0.28); border-color: rgba(76, 157, 255, 0.55); transform: translateX(-2px); }
.dock-btn svg { width: 22px; height: 22px; }
.dock-btn .badge-dot {
  position: absolute; top: 9px; right: 9px; width: 7px; height: 7px; border-radius: 50%;
  background: var(--red); box-shadow: 0 0 8px rgba(255, 84, 76, 0.85);
}
.dock-tip {
  position: absolute; right: 62px; top: 50%; transform: translateY(-50%);
  white-space: nowrap; padding: 7px 12px; border-radius: 8px;
  background: rgba(10, 14, 20, 0.95); border: 1px solid var(--line-strong);
  color: #d7e5f7; font-size: 13px; opacity: 0; pointer-events: none;
  transition: opacity 0.18s, transform 0.18s;
  transform: translate(4px, -50%);
}
.dock-btn:hover .dock-tip { opacity: 1; transform: translate(0, -50%); }

.wechat-panel {
  position: fixed; right: 86px; top: 50%; transform: translateY(-50%) scale(0.96);
  z-index: 90; width: 300px;
  background: #0f1622; border: 1px solid rgba(76, 157, 255, 0.35);
  border-radius: 16px; padding: 20px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.6);
  opacity: 0; pointer-events: none;
  transition: opacity 0.2s, transform 0.2s;
}
.wechat-panel.open { opacity: 1; pointer-events: auto; transform: translateY(-50%) scale(1); }
.wechat-panel .wp-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.wechat-panel .wp-head b { font-size: 15px; }
.wechat-panel .wp-close { border: 0; background: none; color: var(--dim); cursor: pointer; font-size: 18px; line-height: 1; padding: 2px 4px; }
.wechat-panel .wp-close:hover { color: #fff; }
.wechat-qr {
  width: 100%; border-radius: 12px; padding: 10px;
  background: #fff; display: grid; place-items: center;
}
.wechat-qr img { width: 220px; height: 220px; object-fit: contain; border-radius: 6px; }
.wechat-panel p { margin: 14px 0 10px; color: var(--muted); font-size: 13px; text-align: center; }
.wechat-id {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 10px 12px; border-radius: 10px;
  background: rgba(255, 255, 255, 0.04); border: 1px solid var(--line);
  font-size: 13.5px; color: #dbe7f7;
}
.wechat-id strong { color: #fff; letter-spacing: 0.4px; }
.copy-btn {
  border: 1px solid rgba(76, 157, 255, 0.4); background: rgba(76, 157, 255, 0.13);
  color: #9cc8ff; border-radius: 7px; padding: 4px 10px; cursor: pointer; font-size: 12.5px;
}
.copy-btn:hover { background: rgba(76, 157, 255, 0.22); }

/* ---------- 弹窗 / 提示 ---------- */
.toast {
  position: fixed; left: 50%; bottom: 40px; transform: translate(-50%, 20px);
  background: rgba(16, 22, 32, 0.96); border: 1px solid rgba(76, 157, 255, 0.45);
  color: #e6f0fb; padding: 12px 20px; border-radius: 10px; font-size: 14px;
  z-index: 120; opacity: 0; pointer-events: none; transition: opacity 0.22s, transform 0.22s;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- 滚动进场动画 ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 子页面头部 ---------- */
.page-hero {
  position: relative; overflow: hidden;
  padding: 156px 0 72px;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(900px 420px at 12% 0%, rgba(39, 89, 234, 0.28), transparent 62%),
    linear-gradient(180deg, #0d1526, #0a0d13);
}
.page-hero .crumb { color: var(--dim); font-size: 13px; margin-bottom: 18px; }
.page-hero .crumb a:hover { color: var(--brand); }
.page-hero h1 { max-width: 820px; }
.page-hero .lead { max-width: 720px; }

/* ---------- 内容行 ---------- */
.split { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }
.split.reverse { grid-template-columns: 1fr 1.05fr; }
.split-media {
  border-radius: 18px; overflow: hidden; border: 1px solid var(--line);
  background: #0d1219; box-shadow: var(--shadow);
}
.split-media img { width: 100%; }
.split-body .eyebrow { margin-bottom: 10px; }
.list { display: grid; gap: 14px; margin-top: 22px; }
.list li { display: flex; gap: 12px; color: #c3d0e2; font-size: 15px; }
.pill-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.pill {
  padding: 6px 14px; border-radius: 999px; font-size: 13px;
  border: 1px solid var(--line-strong); color: var(--muted);
  background: rgba(255, 255, 255, 0.03);
}

/* ---------- 价格 / 版本 ---------- */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: stretch; }
.price-card {
  border: 1px solid var(--line); border-radius: 18px; padding: 30px;
  background: var(--card); display: flex; flex-direction: column;
  position: relative;
}
.price-card.hot { border-color: rgba(76, 157, 255, 0.5); box-shadow: 0 20px 54px rgba(39, 89, 234, 0.24); }
.price-card.hot .hot-tag {
  position: absolute; top: 18px; right: 18px;
  background: linear-gradient(135deg, #4c9dff, #2759ea);
  color: #fff; font-size: 12px; padding: 4px 10px; border-radius: 999px;
}
.price-card h3 { font-size: 19px; }
.price-card .price { margin: 16px 0 6px; font-size: 26px; font-weight: 800; }
.price-card .price span { font-size: 13px; color: var(--dim); font-weight: 400; margin-left: 6px; }
.price-card ul { display: grid; gap: 11px; margin: 22px 0 26px; }
.price-card li { color: var(--muted); font-size: 14px; display: flex; gap: 8px; }
.price-card .btn { margin-top: auto; }

/* ---------- 联系 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 340px; gap: 36px; align-items: start; }
.contact-card { padding: 34px; }
.contact-card h3 { font-size: 20px; margin-bottom: 8px; }
.contact-row { display: flex; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line); align-items: flex-start; }
.contact-row:last-child { border-bottom: 0; }
.contact-row .ico {
  flex: none; width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center;
  background: rgba(76, 157, 255, 0.12); border: 1px solid rgba(76, 157, 255, 0.28); color: #9cc8ff;
}
.contact-row b { display: block; font-size: 14px; color: var(--muted); font-weight: 500; }
.contact-row p { margin: 2px 0 0; font-size: 17px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .nav-links { display: none; }
  .nav-inner { justify-content: space-between; }
  .product-grid, .feature-grid, .price-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .split, .split.reverse { grid-template-columns: 1fr; gap: 28px; }
  .flow { grid-template-columns: 1fr; gap: 4px; }
  .flow-arrow { transform: rotate(90deg); }
  .contact-grid { grid-template-columns: 1fr; }
  .cta-band { flex-direction: column; align-items: flex-start; }
}
/* ---------- 锚点定位补偿（固定导航高度） ---------- */
[id] { scroll-margin-top: 96px; }

/* ---------- 联系页表单 ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13px; color: var(--dim); }
.field input, .field select, .field textarea {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--text);
  padding: 12px 14px;
  font: inherit;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s, background 0.2s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: rgba(76, 157, 255, 0.55);
  background: rgba(76, 157, 255, 0.06);
}
.field textarea { min-height: 124px; resize: vertical; }
.field select option { background: #131a25; color: var(--text); }
.form-note { color: var(--dim); font-size: 12.5px; margin-top: 14px; }

.qr-side { padding: 28px; text-align: center; }
.qr-side .wechat-qr { margin: 0 auto 18px; width: 100%; }
.qr-side .wechat-qr img { width: 100%; height: auto; max-width: 240px; }
.qr-side h4 { font-size: 16px; }
.qr-side p { color: var(--muted); font-size: 13.5px; margin: 8px 0 16px; }

/* ---------- 悬浮客服按钮激活态 ---------- */
.dock-btn.active { background: rgba(39, 89, 234, 0.32); border-color: rgba(76, 157, 255, 0.6); }

/* ---------- 移动端导航 ---------- */
@media (max-width: 1080px) {
  .nav-toggle {
    display: grid; place-items: center;
    width: 42px; height: 42px; flex: none;
    border-radius: 10px; cursor: pointer;
    border: 1px solid var(--line-strong);
    background: rgba(255, 255, 255, 0.04);
    color: #cfe0f5;
  }
  .nav-toggle svg { width: 20px; height: 20px; }
  .nav-links {
    position: fixed; left: 0; right: 0; top: 72px;
    display: none; flex-direction: column; align-items: stretch; gap: 2px;
    margin: 0; padding: 12px 18px 20px;
    background: rgba(8, 11, 17, 0.98);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 24px 40px rgba(0, 0, 0, 0.5);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 13px 14px; font-size: 15px; }
}

@media (max-width: 720px) {
  .section { padding: 68px 0; }
  .hero { min-height: auto; padding: 128px 0 72px; }
  .product-grid, .feature-grid, .price-grid, .solution-grid, .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero-stats { gap: 24px; }
  .stat b { font-size: 24px; }
  .nav-inner { height: 64px; padding: 0 16px; gap: 14px; }
  .nav-cta { display: none; }
  .nav-links { top: 64px; }
  .container { padding: 0 18px; }
  .form-grid { grid-template-columns: 1fr; }
  .cta-band { padding: 34px 24px; }
  .split-media { border-radius: 14px; }
}

/* 小屏：客服 dock 固定在右下角，面板自适应宽度 */
@media (max-width: 720px) {
  .dock { right: 12px; top: auto; bottom: 76px; transform: none; gap: 8px; }
  .dock-btn { width: 46px; height: 46px; border-radius: 12px; }
  .dock-tip { display: none; }
  .wechat-panel {
    right: 12px; left: auto; top: auto; bottom: 76px;
    width: calc(100vw - 24px); max-width: 320px;
    transform: scale(0.96); transform-origin: bottom right;
  }
  .wechat-panel.open { transform: scale(1); }
}