/* ============================================================
   立壹建站 V2.1 · 全站设计系统（移动端优化版）
   品牌：立壹建站 LIBB WEB STUDIO · 域名 www.liytb.com
   ============================================================ */

:root {
  --ink-950: #070C18;
  --ink-900: #0A101F;
  --ink-800: #0F1B33;
  --ink-700: #17264A;
  --ink-600: #1F3260;
  --primary: #4C5CFF;
  --primary-deep: #3B47D6;
  --cyan: #22D3EE;
  --gold: #F0B54B;
  --grad: linear-gradient(135deg, #4C5CFF 0%, #22D3EE 100%);
  --grad-gold: linear-gradient(135deg, #F0B54B, #FFD98A);
  --light: #F5F7FC;
  --card: #FFFFFF;
  --text-1: #152238;
  --text-2: #46526B;
  --text-3: #8A93A8;
  --line: #E4E9F4;
  --danger: #D92D20;
  --ok: #12B76A;
  --dt-1: #EEF3FF;
  --dt-2: #A7B6DA;
  --dt-3: #7C8BB0;
  --dt-line: rgba(255,255,255,.09);
  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 18px;
  --shadow-sm: 0 2px 10px rgba(21,34,56,.06);
  --shadow-md: 0 12px 32px rgba(21,34,56,.10);
  --shadow-lg: 0 24px 60px rgba(7,12,24,.18);
  --font: 'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Noto Sans SC',-apple-system,'Segoe UI',Roboto,sans-serif;
  --font-num: 'DIN Alternate','Bahnschrift','Segoe UI',var(--font);
  --header-h: 62px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font); font-size: 15px; line-height: 1.75;
  color: var(--text-2); background: var(--light);
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: 14px; }
:focus-visible { outline: 3px solid rgba(76,92,255,.45); outline-offset: 2px; border-radius: 4px; }
::selection { background: rgba(76,92,255,.22); }
.container { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.no-js .reveal { opacity: 1 !important; transform: none !important; }

/* ---------------- 按钮 ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 24px; border-radius: 999px; border: none;
  font-size: 15px; font-weight: 600; line-height: 1.4;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease, border-color .18s;
  white-space: nowrap;
}
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 8px 22px rgba(76,92,255,.32); }
.btn-primary:hover { box-shadow: 0 12px 30px rgba(76,92,255,.45); transform: translateY(-1px); }
.btn-ghost { background: rgba(255,255,255,.08); color: #fff; border: 1.5px solid rgba(255,255,255,.22); backdrop-filter: blur(4px); }
.btn-ghost:hover { border-color: rgba(255,255,255,.5); background: rgba(255,255,255,.14); }
.btn-outline { background: #fff; color: var(--primary); border: 1.5px solid rgba(76,92,255,.45); }
.btn-outline:hover { background: rgba(76,92,255,.06); border-color: var(--primary); }
.btn-dark { background: var(--ink-800); color: #fff; }
.btn-dark:hover { background: var(--ink-700); }
.btn-gold { background: var(--grad-gold); color: #3a2c06; box-shadow: 0 8px 22px rgba(240,181,75,.35); }
.btn-gold:hover { transform: translateY(-1px); box-shadow: 0 12px 30px rgba(240,181,75,.5); }
.btn-sm { padding: 7px 16px; font-size: 13px; }
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .6; cursor: not-allowed; }

/* ---------------- 通用区块（间距已收紧） ---------------- */
.section { padding: 64px 0; }
.section-tint { background: var(--light); }
.section-dark { background: var(--ink-900); color: var(--dt-2); }

.section-head { max-width: 720px; margin: 0 auto 38px; text-align: center; }
.section-head .eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 12px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase;
  color: var(--primary); margin-bottom: 12px;
}
.section-head .eyebrow::before, .section-head .eyebrow::after { content: ''; width: 24px; height: 2px; background: var(--grad); border-radius: 2px; }
.section-head h2 { font-size: clamp(24px, 3vw, 32px); font-weight: 800; color: var(--text-1); line-height: 1.3; letter-spacing: .5px; }
.section-head p { margin-top: 10px; font-size: 14.5px; color: var(--text-3); }
.section-dark .section-head h2 { color: #fff; }
.section-dark .section-head p { color: var(--dt-3); }
.eyebrow-light { color: var(--cyan) !important; }

.tag { display: inline-block; padding: 3px 12px; border-radius: 999px; font-size: 12px; font-weight: 600; background: rgba(76,92,255,.09); color: var(--primary); }
.tag-gold { background: rgba(240,181,75,.14); color: #A16207; }
.tag-dark { background: rgba(255,255,255,.14); color: var(--dt-1); }

/* ---------------- 顶部导航 ---------------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100; height: var(--header-h);
  display: flex; align-items: center;
  background: rgba(10,16,31,.6); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: background .25s, border-color .25s, box-shadow .25s;
}
.site-header.scrolled { background: rgba(10,16,31,.94); border-color: var(--dt-line); box-shadow: 0 6px 24px rgba(3,7,18,.4); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 14px; width: 100%; }

.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--grad); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 800; font-family: var(--font-num);
  box-shadow: 0 6px 16px rgba(76,92,255,.4);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text b { font-size: 16px; font-weight: 800; color: #fff; letter-spacing: 1px; }
.brand-text i { font-size: 9.5px; font-style: normal; letter-spacing: .22em; color: var(--dt-3); margin-top: 3px; }
.brand-light .brand-text b { color: var(--text-1); }
.brand-light .brand-text i { color: var(--text-3); }

.main-nav { display: flex; gap: 2px; }
.main-nav a {
  padding: 7px 13px; border-radius: 999px; font-size: 14px; font-weight: 500; color: var(--dt-1);
  transition: background .18s, color .18s;
}
.main-nav a:hover { background: rgba(255,255,255,.1); color: #fff; }
.header-actions { display: flex; align-items: center; gap: 10px; }

.burger { display: none; width: 40px; height: 40px; border: none; background: transparent; border-radius: 10px; position: relative; }
.burger span { display: block; width: 20px; height: 2px; background: #fff; border-radius: 2px; margin: 4px auto; transition: transform .25s, opacity .25s; }
.burger.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.mobile-menu {
  position: fixed; top: var(--header-h); left: 0; right: 0; z-index: 99;
  background: rgba(10,16,31,.98); border-bottom: 1px solid var(--dt-line);
  padding: 10px 16px 16px; display: flex; flex-direction: column; gap: 2px;
}
.mobile-menu[hidden] { display: none; }
.mobile-menu a { padding: 11px 12px; border-radius: 10px; color: var(--dt-1); font-size: 15px; font-weight: 600; }
.mobile-menu a:hover { background: rgba(255,255,255,.08); color: #fff; }
.mobile-menu-foot { display: flex; gap: 10px; margin-top: 10px; }
.mobile-menu-foot .btn { flex: 1; }

/* ---------------- Hero（手机端已压缩） ---------------- */
.hero { position: relative; min-height: 82vh; display: flex; align-items: center; overflow: hidden; background: var(--ink-900); }
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; opacity: .2; }
.hero-bg::after { content: ''; position: absolute; inset: 0; background:
  radial-gradient(900px 480px at 78% -10%, rgba(76,92,255,.38), transparent 60%),
  radial-gradient(700px 420px at 8% 108%, rgba(34,211,238,.22), transparent 60%),
  linear-gradient(180deg, rgba(10,16,31,.82) 0%, rgba(10,16,31,.66) 45%, rgba(10,16,31,.92) 100%); }
.hero-grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px); background-size: 56px 56px; mask-image: radial-gradient(700px 460px at 50% 40%, #000 30%, transparent 75%); }
.orb { position: absolute; border-radius: 50%; filter: blur(70px); opacity: .5; }
.orb-a { width: 380px; height: 380px; background: rgba(76,92,255,.55); top: -120px; right: 6%; }
.orb-b { width: 300px; height: 300px; background: rgba(34,211,238,.35); bottom: -80px; left: -60px; }

.hero-inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; padding: 120px 20px 90px; width: 100%; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 15px; border-radius: 999px;
  background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.16);
  color: var(--dt-1); font-size: 12.5px; font-weight: 600;
}
.badge-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 4px rgba(34,211,238,.2); }
.hero h1 { font-size: clamp(30px, 4.4vw, 50px); font-weight: 800; color: #fff; line-height: 1.22; letter-spacing: 1px; margin: 18px 0 16px; }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.gold-text { background: var(--grad-gold); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub { font-size: clamp(14.5px, 1.5vw, 16.5px); color: var(--dt-2); max-width: 540px; line-height: 1.85; }
.hero-cta { display: flex; gap: 12px; margin: 24px 0 20px; flex-wrap: wrap; }
.hero-trust { display: flex; gap: 18px; flex-wrap: wrap; }
.hero-trust li { display: inline-flex; align-items: center; gap: 6px; color: var(--dt-2); font-size: 13px; }
.tick { width: 15px; height: 15px; flex: none; color: var(--cyan); }

.hero-visual { position: relative; }
.browser-card {
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.14); border-radius: 16px;
  overflow: hidden; backdrop-filter: blur(6px); box-shadow: var(--shadow-lg);
}
.browser-bar { display: flex; align-items: center; gap: 6px; padding: 10px 14px; background: rgba(255,255,255,.05); border-bottom: 1px solid rgba(255,255,255,.08); }
.dot { width: 9px; height: 9px; border-radius: 50%; }
.dot.red { background: #FF5F57; } .dot.yellow { background: #FEBC2E; } .dot.green { background: #28C840; }
.browser-url { margin-left: 10px; font-size: 11.5px; color: var(--dt-3); background: rgba(255,255,255,.07); padding: 3px 12px; border-radius: 6px; }
.browser-shot { position: relative; }
.browser-shot img { width: 100%; height: 300px; object-fit: cover; }
.browser-shot::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(10,16,31,.55)); }
.float-chip {
  position: absolute; display: flex; flex-direction: column; padding: 11px 16px; border-radius: 13px;
  background: rgba(255,255,255,.94); box-shadow: var(--shadow-md); z-index: 2;
  animation: floatY 5s ease-in-out infinite;
}
.float-chip b { font-size: 17px; font-weight: 800; color: var(--text-1); font-family: var(--font-num); }
.float-chip span { font-size: 11.5px; color: var(--text-3); }
.chip-a { top: -18px; right: 20px; }
.chip-a b { color: var(--primary); }
.chip-b { bottom: -16px; left: 22px; animation-delay: 2.4s; }
.chip-b b { color: var(--gold); }
@keyframes floatY { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }

/* ---------------- 数据带 ---------------- */
.stats-band { background: var(--ink-800); border-block: 1px solid var(--dt-line); }
.stats-inner { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; padding: 26px 20px; }
.stat { text-align: center; }
.stat b { display: block; font-size: clamp(24px, 2.8vw, 32px); font-weight: 800; color: #fff; font-family: var(--font-num); letter-spacing: .5px; }
.stat b em { font-style: normal; font-size: 13px; font-weight: 600; color: var(--cyan); margin-left: 3px; }
.stat > span { font-size: 12.5px; color: var(--dt-3); margin-top: 3px; display: block; }

/* ---------------- 服务卡片（紧凑） ---------------- */
.svc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.svc-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; transition: transform .22s ease, box-shadow .22s ease, border-color .22s; }
.svc-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: rgba(76,92,255,.35); }
.svc-thumb { position: relative; height: 150px; overflow: hidden; }
.svc-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.svc-card:hover .svc-thumb img { transform: scale(1.06); }
.svc-thumb::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(10,16,31,.5)); }
.svc-thumb .svc-index { position: absolute; left: 14px; bottom: 10px; z-index: 1; color: #fff; font-size: 12px; font-weight: 700; letter-spacing: .1em; }
.svc-thumb .svc-icon { position: absolute; right: 14px; bottom: 10px; z-index: 1; width: 40px; height: 40px; border-radius: 11px; background: rgba(255,255,255,.16); backdrop-filter: blur(6px); display: flex; align-items: center; justify-content: center; color: #fff; }
.svc-body { padding: 18px 20px 20px; }
.svc-body h3 { font-size: 17px; font-weight: 700; color: var(--text-1); margin-bottom: 6px; }
.svc-body p { font-size: 13.5px; color: var(--text-2); line-height: 1.75; }
.svc-tags { display: flex; gap: 7px; flex-wrap: wrap; margin-top: 12px; }
.svc-tags li { font-size: 11.5px; color: var(--primary); background: rgba(76,92,255,.08); padding: 2px 11px; border-radius: 999px; font-weight: 600; }
.svc-link { display: inline-flex; align-items: center; gap: 5px; margin-top: 14px; font-size: 13.5px; font-weight: 700; color: var(--primary); }
.svc-link:hover { gap: 9px; }
.svc-link svg { width: 14px; height: 14px; transition: transform .18s; }

/* ---------------- 行业方案（紧凑宫格） ---------------- */
.sol-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.sol-card { position: relative; border-radius: var(--r-md); overflow: hidden; height: 128px; display: flex; align-items: flex-end; isolation: isolate; transition: transform .22s ease, box-shadow .22s; }
.sol-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.sol-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; transition: transform .5s; }
.sol-card:hover img { transform: scale(1.08); }
.sol-card::after { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(180deg, rgba(10,16,31,.05) 30%, rgba(10,16,31,.88) 100%); }
.sol-card .sol-body { padding: 12px 15px; color: #fff; width: 100%; }
.sol-card .sol-body b { display: block; font-size: 15px; font-weight: 700; letter-spacing: .5px; }
.sol-card .sol-body span { font-size: 11.5px; color: rgba(255,255,255,.72); margin-top: 1px; display: block; }

/* ---------------- 为什么选我们 ---------------- */
.why-inner { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: center; }
.why-inner img { border-radius: 18px; box-shadow: var(--shadow-md); width: 100%; max-height: 400px; object-fit: cover; }
.why-left .eyebrow { display: inline-flex; align-items: center; gap: 10px; font-size: 12px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--primary); margin-bottom: 12px; }
.why-left .eyebrow::before { content: ''; width: 24px; height: 2px; background: var(--grad); border-radius: 2px; }
.why-left h2 { font-size: clamp(24px, 3vw, 32px); font-weight: 800; color: var(--text-1); line-height: 1.35; margin-bottom: 14px; }
.why-left p { color: var(--text-2); font-size: 14.5px; line-height: 1.85; margin-bottom: 22px; }
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.why-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-md); padding: 20px 18px; transition: transform .2s, box-shadow .2s, border-color .2s; }
.why-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: rgba(76,92,255,.3); }
.why-card .why-num { font-family: var(--font-num); font-size: 24px; font-weight: 800; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.why-card h3 { font-size: 15.5px; font-weight: 700; color: var(--text-1); margin: 6px 0 5px; }
.why-card p { font-size: 13px; color: var(--text-2); line-height: 1.7; }
/* 关于页四条原则：桌面 4 列、平板 2 列、手机 1 列 */
.why-grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------------- 流程 ---------------- */
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; position: relative; }
.process-steps::before { content: ''; position: absolute; top: 27px; left: 12%; right: 12%; height: 2px; background: linear-gradient(90deg, var(--primary), var(--cyan)); opacity: .3; }
.process-step { text-align: center; position: relative; padding: 0 6px; }
.step-node { width: 54px; height: 54px; margin: 0 auto 14px; border-radius: 50%; background: var(--grad); color: #fff; font-size: 20px; font-weight: 800; font-family: var(--font-num); display: flex; align-items: center; justify-content: center; box-shadow: 0 10px 24px rgba(76,92,255,.35); position: relative; z-index: 1; }
.process-step h3 { font-size: 16px; font-weight: 700; color: var(--text-1); margin-bottom: 6px; }
.process-step p { font-size: 13px; color: var(--text-3); line-height: 1.75; }

/* ---------------- 案例（紧凑） ---------------- */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.case-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; transition: transform .22s ease, box-shadow .22s ease; }
.case-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.case-thumb { position: relative; height: 170px; overflow: hidden; }
.case-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.case-card:hover .case-thumb img { transform: scale(1.06); }
.case-thumb::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 60%, rgba(10,16,31,.62)); }
.case-thumb .case-tag { position: absolute; top: 12px; left: 12px; z-index: 1; }
.case-meta { padding: 16px 18px 18px; }
.case-meta h3 { font-size: 16px; font-weight: 700; color: var(--text-1); margin-bottom: 5px; }
.case-meta p { font-size: 13px; color: var(--text-3); line-height: 1.7; }
.case-meta .case-foot { display: flex; align-items: center; gap: 7px; margin-top: 12px; flex-wrap: wrap; }
.case-meta .case-foot .tag { font-size: 11px; }

/* ---------------- 价格（紧凑卡片） ---------------- */
.price-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 44px; }
.price-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 22px 20px; display: flex; flex-direction: column; position: relative; transition: transform .22s ease, box-shadow .22s ease; }
.price-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.price-card.featured { border: 2px solid transparent; background: linear-gradient(var(--card), var(--card)) padding-box, var(--grad) border-box; box-shadow: 0 14px 36px rgba(76,92,255,.16); }
.price-flag { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--grad); color: #fff; font-size: 11.5px; font-weight: 700; padding: 3px 14px; border-radius: 999px; letter-spacing: .08em; }
.price-card h3 { font-size: 16px; font-weight: 700; color: var(--text-1); }
.price-desc { font-size: 12.5px; color: var(--text-3); margin-top: 4px; min-height: 36px; }
.price-value { margin: 12px 0 14px; }
.price-value b { font-size: 32px; font-weight: 800; color: var(--text-1); font-family: var(--font-num); letter-spacing: -1px; }
.price-value b.price-nego { font-size: 24px; }
.price-value span { font-size: 12px; color: var(--text-3); }
.price-card.featured .price-value b { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.price-features { margin-bottom: 16px; flex: 1; }
.price-features li { display: flex; align-items: flex-start; gap: 8px; font-size: 13px; color: var(--text-2); line-height: 1.6; padding: 3.5px 0; }
.price-features .tick { width: 14px; height: 14px; margin-top: 4px; color: var(--ok); flex: none; }
.price-card .btn { margin-top: auto; }

.compare-wrap { margin-top: 8px; }
.compare-title { font-size: 17px; font-weight: 800; color: var(--text-1); text-align: center; margin-bottom: 18px; }
.table-scroll { overflow-x: auto; border-radius: var(--r-md); border: 1px solid var(--line); background: var(--card); box-shadow: var(--shadow-sm); }
.compare-table { width: 100%; min-width: 820px; border-collapse: collapse; }
.compare-table th, .compare-table td { padding: 11px 14px; text-align: center; font-size: 13px; border-bottom: 1px solid var(--line); color: var(--text-2); }
.compare-table thead th { background: var(--ink-800); color: #fff; font-weight: 700; font-size: 13.5px; }
.compare-table thead th b { display: block; font-size: 16px; font-family: var(--font-num); color: var(--cyan); margin-top: 2px; }
.compare-table thead th.hot { background: var(--grad); }
.compare-table td:first-child { text-align: left; font-weight: 600; color: var(--text-1); background: #FAFBFE; }
.compare-table tbody tr:last-child td { border-bottom: none; }
.compare-table .hot { background: rgba(76,92,255,.05); font-weight: 600; color: var(--primary); }
.compare-table .cta-row td { padding: 12px 14px; }
.mini-order { display: inline-block; padding: 6px 20px; border-radius: 999px; background: var(--ink-800); color: #fff; font-size: 12.5px; font-weight: 600; transition: background .18s; }
.mini-order:hover { background: var(--ink-600); }
.mini-order.primary { background: var(--grad); box-shadow: 0 6px 16px rgba(76,92,255,.3); }
.mini-order.primary:hover { box-shadow: 0 8px 22px rgba(76,92,255,.45); }

/* ---------------- 保障 ---------------- */
.promise-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.promise-item { display: flex; align-items: center; gap: 12px; background: var(--card); border: 1px solid var(--line); border-radius: var(--r-md); padding: 16px 14px; transition: transform .2s, box-shadow .2s; }
.promise-item:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.pr-icon { width: 40px; height: 40px; flex: none; border-radius: 11px; background: rgba(76,92,255,.09); color: var(--primary); display: flex; align-items: center; justify-content: center; }
.pr-icon svg { width: 20px; height: 20px; }
.promise-item b { display: block; font-size: 14px; font-weight: 700; color: var(--text-1); }
.promise-item i { font-style: normal; font-size: 11.5px; color: var(--text-3); line-height: 1.5; display: block; margin-top: 2px; }

/* ---------------- 客户评价 ---------------- */
.voice-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.voice-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 22px 22px 20px; box-shadow: var(--shadow-sm); display: flex; flex-direction: column; }
.voice-stars { display: flex; gap: 3px; margin-bottom: 12px; }
.voice-stars .star { width: 15px; height: 15px; color: var(--gold); }
.voice-text { font-size: 13.5px; color: var(--text-2); line-height: 1.85; flex: 1; }
.voice-person { display: flex; align-items: center; gap: 10px; margin-top: 16px; padding-top: 14px; border-top: 1px dashed var(--line); }
.voice-avatar { width: 42px; height: 42px; border-radius: 50%; overflow: hidden; flex: none; }
.voice-avatar svg { width: 100%; height: 100%; }
.voice-person b { display: block; font-size: 14px; color: var(--text-1); }
.voice-person span { font-size: 12px; color: var(--text-3); }

/* ---------------- FAQ ---------------- */
.faq-inner { display: grid; grid-template-columns: .85fr 1.15fr; gap: 44px; align-items: start; }
.faq-left .eyebrow { display: inline-flex; align-items: center; gap: 10px; font-size: 12px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--primary); margin-bottom: 12px; }
.faq-left .eyebrow::before { content: ''; width: 24px; height: 2px; background: var(--grad); border-radius: 2px; }
.faq-left h2 { font-size: clamp(24px, 3vw, 32px); font-weight: 800; color: var(--text-1); margin-bottom: 12px; }
.faq-left p { color: var(--text-3); font-size: 14px; margin-bottom: 20px; }
.faq-list { display: flex; flex-direction: column; gap: 10px; }
.faq-item { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; transition: border-color .2s, box-shadow .2s; }
.faq-item.open { border-color: rgba(76,92,255,.4); box-shadow: var(--shadow-sm); }
.faq-q { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 15px 18px; background: none; border: none; text-align: left; font-size: 14px; font-weight: 600; color: var(--text-1); }
.faq-q svg { width: 17px; height: 17px; flex: none; color: var(--text-3); transition: transform .25s; }
.faq-item.open .faq-q svg { transform: rotate(180deg); color: var(--primary); }
.faq-a { display: none; padding: 0 18px 17px; font-size: 13.5px; color: var(--text-2); line-height: 1.85; }
.faq-item.open .faq-a { display: block; }

/* ---------------- 询价 / 表单 ---------------- */
.quote { position: relative; background: var(--ink-900); overflow: hidden; }
.quote-bg { position: absolute; inset: 0; }
.quote-bg .orb { width: 420px; height: 420px; background: rgba(76,92,255,.35); top: -160px; left: -80px; }
.quote-bg .orb:last-child { width: 360px; height: 360px; background: rgba(34,211,238,.25); bottom: -140px; right: -60px; top: auto; left: auto; }
.quote-head { position: relative; text-align: center; max-width: 640px; margin: 0 auto 36px; }
.quote-head h2 { font-size: clamp(24px, 3vw, 32px); font-weight: 800; color: #fff; margin-bottom: 10px; }
.quote-head p { color: var(--dt-3); font-size: 14.5px; }
.quote-panel { position: relative; display: grid; grid-template-columns: .9fr 1.1fr; gap: 0; background: #fff; border-radius: 22px; overflow: hidden; box-shadow: var(--shadow-lg); }
.quote-info { background: linear-gradient(160deg, var(--ink-800), var(--ink-700)); color: var(--dt-2); padding: 32px 30px; }
.quote-info h3 { color: #fff; font-size: 17px; font-weight: 700; margin-bottom: 16px; }
.quote-points { display: flex; flex-direction: column; gap: 13px; }
.quote-points li { display: flex; gap: 11px; }
.quote-points li b { display: block; color: #fff; font-size: 14px; margin-bottom: 2px; }
.quote-points li span { font-size: 12.5px; color: var(--dt-3); line-height: 1.65; }
.quote-points .qp-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); margin-top: 6px; flex: none; box-shadow: 0 0 0 4px rgba(34,211,238,.18); }
.quote-qr { display: flex; align-items: center; gap: 16px; margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--dt-line); }
.quote-qr figure { text-align: center; }
.quote-qr img { width: 88px; height: 88px; border-radius: 11px; border: 2px solid rgba(255,255,255,.25); background: #fff; object-fit: cover; }
.quote-qr figcaption { font-size: 11.5px; color: var(--dt-3); margin-top: 5px; }
.quote-qr p { font-size: 12.5px; color: var(--dt-2); line-height: 1.75; }
.quote-contact { display: flex; flex-direction: column; gap: 9px; margin-top: 16px; }
.contact-item { display: flex; align-items: center; gap: 9px; font-size: 13.5px; }
.ci-label { color: var(--dt-3); font-size: 12px; width: 58px; flex: none; }
.ci-value { color: #fff; font-weight: 600; }
.ci-value a:hover { color: var(--cyan); }

.quote-form { padding: 32px 30px; }
.form-row { display: flex; gap: 14px; }
.form-item { margin-bottom: 15px; flex: 1; min-width: 0; }
.form-item label { display: block; font-size: 13px; font-weight: 600; color: var(--text-1); margin-bottom: 6px; }
.form-item label em { color: var(--danger); font-style: normal; }
.form-item input, .form-item select, .form-item textarea {
  width: 100%; padding: 10px 13px; border: 1.5px solid var(--line); border-radius: 10px;
  color: var(--text-1); background: #fff; transition: border-color .18s, box-shadow .18s;
}
.form-item input:focus, .form-item select:focus, .form-item textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(76,92,255,.12); }
.form-item textarea { resize: vertical; }
.form-error { display: block; background: #FEF3F2; border: 1px solid #FECDCA; color: #B42318; border-radius: 10px; padding: 10px 14px; font-size: 13px; margin: 0 0 12px; }
.form-error[hidden] { display: none; }
.form-tip { font-size: 12px; color: var(--text-3); line-height: 1.7; margin-top: 10px; text-align: center; }
.success-panel { text-align: center; padding: 26px 8px; }
.success-icon { width: 58px; height: 58px; margin: 0 auto 16px; color: var(--ok); display: block; }
.success-panel h3 { font-size: 19px; color: var(--text-1); margin-bottom: 9px; }
.success-panel p { font-size: 13.5px; color: var(--text-2); max-width: 420px; margin: 0 auto 20px; line-height: 1.85; }
.spinner { display: inline-block; width: 15px; height: 15px; border: 2px solid rgba(255,255,255,.35); border-top-color: #fff; border-radius: 50%; animation: spin .7s linear infinite; vertical-align: -2px; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------------- 资讯（紧凑） ---------------- */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.news-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; display: flex; flex-direction: column; transition: transform .22s, box-shadow .22s; }
.news-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.news-thumb { height: 150px; overflow: hidden; position: relative; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
.news-card:hover .news-thumb img { transform: scale(1.06); }
.news-thumb .news-date { position: absolute; bottom: 10px; left: 12px; z-index: 1; background: rgba(10,16,31,.75); backdrop-filter: blur(4px); color: #fff; font-size: 11.5px; padding: 3px 11px; border-radius: 999px; }
.news-body { padding: 16px 18px 18px; display: flex; flex-direction: column; flex: 1; }
.news-body h3 { font-size: 15px; font-weight: 700; color: var(--text-1); line-height: 1.5; margin-bottom: 7px; }
.news-body h3 a:hover { color: var(--primary); }
.news-body p { font-size: 13px; color: var(--text-3); line-height: 1.75; flex: 1; }
.news-body .news-more { margin-top: 12px; font-size: 13px; font-weight: 700; color: var(--primary); }

/* ---------------- CTA 横幅 ---------------- */
.cta-band { position: relative; background: var(--ink-800); overflow: hidden; }
.cta-band::before { content: ''; position: absolute; inset: 0; background: radial-gradient(700px 340px at 80% 0%, rgba(76,92,255,.35), transparent 65%); }
.cta-inner { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 28px; padding: 44px 20px; flex-wrap: wrap; }
.cta-inner h2 { color: #fff; font-size: clamp(21px, 2.6vw, 28px); font-weight: 800; }
.cta-inner p { color: var(--dt-3); margin-top: 6px; font-size: 14px; }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------------- 页脚（紧凑 + 居中版权行） ---------------- */
.site-footer { background: var(--ink-950); color: var(--dt-3); padding: 52px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; padding-bottom: 36px; }
.footer-brand p { font-size: 13px; line-height: 1.85; margin-top: 14px; max-width: 320px; }
.footer-col h4 { color: #fff; font-size: 14px; font-weight: 700; margin-bottom: 12px; }
.footer-col a { display: block; padding: 4px 0; font-size: 13px; transition: color .18s, padding-left .18s; }
.footer-col a:hover { color: var(--cyan); padding-left: 4px; }
.footer-badges { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 14px; }
.footer-bottom { border-top: 1px solid var(--dt-line); padding: 18px 0 22px; text-align: center; font-size: 12.5px; line-height: 2; }
.footer-bottom a:hover { color: var(--cyan); }
.footer-bottom a.copy { color: #fff; font-weight: 700; }
.footer-bottom a.copy:hover { color: var(--cyan); }
.footer-bottom .fb-line { display: block; }

/* ---------------- 内页 Hero ---------------- */
.page-hero { position: relative; background: var(--ink-900); padding: calc(var(--header-h) + 48px) 0 44px; overflow: hidden; }
.page-hero .bg { position: absolute; inset: 0; }
.page-hero .bg img { width: 100%; height: 100%; object-fit: cover; opacity: .15; }
.page-hero .bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(10,16,31,.88), rgba(10,16,31,.72)); }
.page-hero-inner { position: relative; text-align: center; max-width: 780px; margin: 0 auto; }
.page-hero .ph-tag { display: inline-flex; align-items: center; gap: 8px; padding: 5px 14px; border-radius: 999px; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16); color: var(--dt-1); font-size: 12px; font-weight: 600; letter-spacing: .08em; }
.page-hero h1 { color: #fff; font-size: clamp(26px, 3.6vw, 38px); font-weight: 800; margin: 14px 0 12px; line-height: 1.3; }
.page-hero p { color: var(--dt-2); font-size: 14.5px; max-width: 620px; margin: 0 auto; line-height: 1.85; }
.crumb { position: relative; margin-top: 16px; font-size: 12.5px; color: var(--dt-3); }
.crumb a:hover { color: var(--cyan); }
.crumb .sep { margin: 0 8px; opacity: .5; }

/* ---------------- 正文（文章页） ---------------- */
.prose { font-size: 14.5px; color: var(--text-2); line-height: 1.95; }
.prose h2 { font-size: 21px; font-weight: 800; color: var(--text-1); margin: 28px 0 12px; }
.prose h3 { font-size: 17px; font-weight: 700; color: var(--text-1); margin: 24px 0 9px; }
.prose p { margin-bottom: 14px; }
.prose ul, .prose ol { margin: 0 0 14px; padding-left: 24px; }
.prose ul li { list-style: disc; margin-bottom: 5px; }
.prose ol li { list-style: decimal; margin-bottom: 5px; }
.prose img { border-radius: 13px; margin: 18px 0; }
.prose blockquote { border-left: 4px solid var(--primary); background: rgba(76,92,255,.05); padding: 12px 18px; border-radius: 0 10px 10px 0; margin: 18px 0; color: var(--text-1); font-weight: 500; }

.article-wrap { max-width: 860px; margin: 0 auto; }
.article-head { text-align: center; margin-bottom: 28px; }
.article-head h1 { font-size: clamp(22px, 3vw, 30px); color: var(--text-1); font-weight: 800; line-height: 1.4; margin: 12px 0; }
.article-meta { display: flex; justify-content: center; gap: 16px; color: var(--text-3); font-size: 12.5px; flex-wrap: wrap; }
.article-cover { border-radius: var(--r-lg); overflow: hidden; margin-bottom: 26px; box-shadow: var(--shadow-md); }
.article-cover img { width: 100%; max-height: 380px; object-fit: cover; }
.article-back { display: inline-flex; align-items: center; gap: 6px; color: var(--primary); font-weight: 600; font-size: 13.5px; margin-bottom: 16px; }

/* ---------------- 联系页 ---------------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 32px; align-items: start; }
.contact-cards { display: flex; flex-direction: column; gap: 13px; }
.contact-card { display: flex; gap: 14px; align-items: flex-start; background: var(--card); border: 1px solid var(--line); border-radius: var(--r-md); padding: 19px; }
.contact-card .cc-icon { width: 44px; height: 44px; flex: none; border-radius: 13px; background: rgba(76,92,255,.09); color: var(--primary); display: flex; align-items: center; justify-content: center; }
.contact-card .cc-icon svg { width: 22px; height: 22px; }
.contact-card b { display: block; font-size: 14.5px; color: var(--text-1); margin-bottom: 3px; }
.contact-card p { font-size: 13px; color: var(--text-2); line-height: 1.75; }
.contact-card a:hover { color: var(--primary); }
.contact-form-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg); padding: 28px; box-shadow: var(--shadow-sm); }
.contact-form-card h2 { font-size: 18px; font-weight: 800; color: var(--text-1); margin-bottom: 5px; }
.contact-form-card > p { font-size: 13px; color: var(--text-3); margin-bottom: 20px; }

/* ---------------- 下单页（卡片紧凑） ---------------- */
.order-wrap { min-height: 100vh; padding: calc(var(--header-h) + 32px) 16px 70px; background: radial-gradient(1000px 500px at 80% -10%, #1b2647 0%, transparent 60%), linear-gradient(160deg, #0a0f1e, #101a36); }
.order-box { max-width: 960px; margin: 0 auto; }
.order-title { text-align: center; margin-bottom: 28px; }
.order-title h1 { font-size: 28px; color: #fff; margin: 0 0 8px; }
.order-title p { color: rgba(226,232,245,.65); font-size: 14.5px; margin: 0; }
.order-panel { background: #fff; border-radius: 20px; padding: 26px 28px 24px; box-shadow: 0 30px 80px rgba(3,7,18,.45); }
.op-label { font-size: 15px; font-weight: 700; margin: 0 0 12px; }
.op-label small { color: var(--text-3); font-weight: 400; margin-left: 8px; font-size: 12.5px; }
.pkg-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 24px; }
.pkg-opt { position: relative; border: 2px solid var(--line); border-radius: 13px; padding: 13px 12px 12px; cursor: pointer; transition: border-color .2s, box-shadow .2s; }
.pkg-opt:hover { border-color: rgba(76,92,255,.45); }
.pkg-opt input { position: absolute; opacity: 0; }
.pkg-consult { display: flex; flex-direction: column; text-decoration: none; border-style: dashed; color: inherit; }
.pkg-consult:visited { color: inherit; }
.pkg-consult * { text-decoration: none !important; }
.pkg-consult .pk-nego { color: var(--text-1); font-size: 19px; }
.pkg-consult:hover { border-color: var(--primary); }
.pkg-consult:hover .pk-desc { color: var(--primary); }
.pkg-opt.sel { border-color: var(--primary); box-shadow: 0 8px 24px rgba(76,92,255,.16); }
.pkg-opt .pk-name { font-size: 13.5px; font-weight: 700; line-height: 1.45; min-height: 38px; }
.pkg-opt .pk-price { font-size: 21px; font-weight: 800; color: var(--primary); margin-top: 4px; font-family: var(--font-num); }
.pkg-opt .pk-price small { font-size: 11.5px; color: var(--text-3); font-weight: 400; }
.pkg-opt .pk-desc { font-size: 12px; color: var(--text-3); margin-top: 4px; line-height: 1.55; }
.pkg-opt .pk-check { position: absolute; top: -10px; right: -8px; width: 22px; height: 22px; border-radius: 50%; background: var(--grad); color: #fff; font-size: 12px; display: none; align-items: center; justify-content: center; }
.pkg-opt.sel .pk-check { display: inline-flex; }
.addon-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-bottom: 24px; }
.addon-opt { display: flex; align-items: center; gap: 9px; border: 1.5px solid var(--line); border-radius: 11px; padding: 11px 14px; cursor: pointer; font-size: 13.5px; transition: border-color .2s; }
.addon-opt:hover { border-color: rgba(76,92,255,.45); }
.addon-opt.sel { border-color: var(--primary); background: rgba(76,92,255,.05); }
.addon-opt input { accent-color: var(--primary); width: 15px; height: 15px; }
.addon-opt b { margin-left: auto; color: var(--primary); font-weight: 700; white-space: nowrap; }
.order-summary { display: flex; align-items: center; justify-content: space-between; gap: 14px; background: var(--light); border: 1px dashed #c9d2ea; border-radius: 13px; padding: 13px 18px; margin-bottom: 22px; flex-wrap: wrap; }
.order-summary .sum-detail { font-size: 13px; color: var(--text-2); line-height: 1.8; }
.order-summary .sum-detail b { color: var(--text-1); }
.order-summary .sum-total { font-size: 13.5px; color: var(--text-2); white-space: nowrap; }
.order-summary .sum-total b { font-size: 26px; color: var(--danger); margin-left: 4px; font-family: var(--font-num); }
.order-form .form-row { display: flex; gap: 14px; }
.order-form .form-row .form-item { flex: 1; min-width: 0; }
.order-submit { margin-top: 4px; }
.order-side { display: flex; gap: 14px; justify-content: center; margin-top: 18px; flex-wrap: wrap; }
.order-side a { color: rgba(226,232,245,.65); font-size: 13px; }
.order-side a:hover { color: #fff; }
.trust-strip { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; margin: 20px 0 4px; }
.trust-strip li { display: inline-flex; align-items: center; gap: 6px; color: rgba(226,232,245,.7); font-size: 12.5px; }
.trust-strip .tick { color: var(--cyan); }

/* ---------------- 支付页 ---------------- */
.pay-wrap { min-height: 100vh; background: var(--ink-900); padding: 40px 16px 70px; }
.pay-box { max-width: 780px; margin: 0 auto; }
.pay-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; }
.pay-brand .brand-mark { width: 34px; height: 34px; font-size: 15px; border-radius: 9px; }
.pay-brand b { font-size: 16.5px; color: #fff; }
.pay-card { background: #fff; border-radius: 18px; box-shadow: var(--shadow-md); overflow: hidden; margin-bottom: 18px; }
.pay-card .pc-head { padding: 17px 24px; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.pay-card .pc-head h2 { font-size: 16px; margin: 0; }
.pay-card .pc-body { padding: 20px 24px 24px; }
.pay-amount { text-align: center; padding: 8px 0 4px; }
.pay-amount b { font-size: 40px; color: var(--danger); font-family: var(--font-num); }
.pay-amount span { font-size: 13.5px; color: var(--text-3); display: block; margin-top: 3px; }
.pay-info { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 22px; margin-top: 15px; }
.pay-info div { font-size: 13px; color: var(--text-2); line-height: 1.75; }
.pay-info b { color: var(--text-1); font-weight: 600; }
.pay-qr-grid { display: flex; gap: 24px; justify-content: center; flex-wrap: wrap; margin: 6px 0 4px; }
.pay-qr-grid figure { text-align: center; margin: 0; }
.pay-qr-grid img { width: 150px; height: 150px; object-fit: cover; border-radius: 13px; border: 1px solid var(--line); background: #fff; }
.pay-qr-grid figcaption { font-size: 12.5px; color: var(--text-2); margin-top: 7px; font-weight: 600; }
.pay-qr-empty { text-align: center; color: var(--text-3); font-size: 13.5px; background: var(--light); border-radius: 12px; padding: 22px 16px; line-height: 1.85; }
.pay-notice { background: #fffaeb; border: 1px solid #fedf89; color: #b54708; border-radius: 10px; padding: 9px 13px; font-size: 12.5px; line-height: 1.75; margin: 12px 0 0; }
.pay-form label { display: block; font-size: 13px; font-weight: 600; margin: 14px 0 7px; }
.pay-form .radio-row { display: flex; gap: 12px; flex-wrap: wrap; }
.pay-form .radio-row label { margin: 0; }
.pay-form input[type="radio"] { accent-color: var(--primary); margin-right: 6px; }
.pay-form input[type="file"] { font-size: 13px; }
.pay-timeline { display: flex; gap: 0; margin: 4px 0 2px; }
.pay-timeline .tl { flex: 1; text-align: center; position: relative; }
.pay-timeline .tl::before { content: ''; position: absolute; top: 12px; left: -50%; width: 100%; height: 2px; background: var(--line); }
.pay-timeline .tl:first-child::before { display: none; }
.pay-timeline .tl span { position: relative; z-index: 1; width: 26px; height: 26px; border-radius: 50%; background: #e4e8f2; color: #7a8399; font-size: 12.5px; font-weight: 700; display: inline-flex; align-items: center; justify-content: center; }
.pay-timeline .tl.done::before, .pay-timeline .tl.cur::before { background: var(--primary); }
.pay-timeline .tl.done span, .pay-timeline .tl.cur span { background: var(--primary); color: #fff; }
.pay-timeline p { font-size: 12px; color: var(--text-2); margin-top: 7px; }
.pay-timeline .tl.cur p { color: var(--primary); font-weight: 700; }
.back-link { display: block; text-align: center; color: rgba(255,255,255,.6); font-size: 13px; margin-top: 18px; }
.back-link:hover { color: #fff; }

/* ---------------- 微信悬浮（右下角） ---------------- */
.float-contact { position: fixed; right: 16px; bottom: 24px; z-index: 90; }
.fc-wechat { width: 44px; height: 44px; border-radius: 50%; background: #07C160; display: flex; align-items: center; justify-content: center; color: #fff; box-shadow: var(--shadow-md); position: relative; transition: transform .2s; }
.fc-wechat:hover { transform: translateY(-3px) scale(1.05); }
.fc-wechat .fc-qr { position: absolute; right: 54px; bottom: -10px; width: 145px; padding: 9px; background: #fff; border-radius: 11px; box-shadow: var(--shadow-lg); opacity: 0; visibility: hidden; transform: translateX(8px); transition: all .22s; }
.fc-wechat:hover .fc-qr { opacity: 1; visibility: visible; transform: translateX(0); }
.fc-wechat .fc-qr img { width: 100%; border-radius: 5px; }
.fc-wechat .fc-qr span { display: block; text-align: center; font-size: 11px; color: var(--text-2); margin-top: 5px; }
.float-contact svg { width: 21px; height: 21px; }
.back-top { display: none; }

/* 移动端底部转化条 */
.sticky-cta { position: fixed; left: 0; right: 0; bottom: 0; z-index: 95; display: none; gap: 10px; padding: 9px 14px calc(9px + env(safe-area-inset-bottom)); background: rgba(10,16,31,.96); backdrop-filter: blur(10px); border-top: 1px solid var(--dt-line); }
.sc-btn { flex: 1; padding: 11px 0; border-radius: 999px; font-size: 14.5px; font-weight: 700; border: none; }
.sc-ghost { background: rgba(255,255,255,.1); color: #fff; border: 1px solid rgba(255,255,255,.25); }
.sc-primary { background: var(--grad); color: #fff; box-shadow: 0 8px 20px rgba(76,92,255,.4); }

/* ---------------- 404 ---------------- */
.notfound { min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; background: var(--ink-900); color: #fff; padding: 40px 20px; }
.notfound .nf-code { font-size: clamp(80px, 16vw, 150px); font-weight: 800; font-family: var(--font-num); background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; line-height: 1; }
.notfound h1 { font-size: 23px; margin: 8px 0 12px; }
.notfound p { color: var(--dt-3); max-width: 420px; margin-bottom: 24px; }

/* ---------------- 渐显动画 ---------------- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .55s ease, transform .55s cubic-bezier(.22,.61,.36,1); transition-delay: var(--d, 0s); }
.reveal.in { opacity: 1; transform: none; }

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

/* ---------------- 在线客服浮窗（圆形图标按钮，微信上方，互不重叠） ---------------- */
.chat-widget { position: fixed; right: 16px; bottom: 120px; z-index: 92; }
.chat-launcher {
  width: 44px; height: 44px; padding: 0; border: none; border-radius: 50%;
  background: var(--grad); color: #fff; font-size: 20px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 26px rgba(76,92,255,.4); transition: transform .2s;
}
.chat-launcher:hover { transform: translateY(-2px); }
.chat-launcher .dot-badge { position: absolute; top: -2px; right: -2px; width: 10px; height: 10px; border-radius: 50%; background: #FF5F57; display: none; box-shadow: 0 0 0 3px rgba(255,95,87,.3); }
.chat-launcher.has-new .dot-badge { display: block; }
.chat-launcher svg { width: 21px; height: 21px; }
.chat-panel {
  position: fixed; right: 16px; bottom: 170px; width: 320px; max-width: calc(100vw - 24px);
  max-height: calc(100vh - 230px); min-height: 300px; display: flex; flex-direction: column;
  background: #fff; border-radius: 18px; box-shadow: 0 24px 60px rgba(7,12,24,.28); overflow: hidden;
  border: 1px solid var(--line);
}
.chat-panel[hidden] { display: none; }
.chat-head { background: linear-gradient(135deg, var(--ink-800), var(--ink-700)); color: #fff; padding: 13px 16px; display: flex; align-items: center; justify-content: space-between; }
.chat-head b { font-size: 14.5px; }
.chat-head span { font-size: 11.5px; color: var(--dt-3); }
.chat-close { background: none; border: none; color: #fff; font-size: 17px; cursor: pointer; line-height: 1; padding: 2px 6px; }
.chat-body { flex: 1; min-height: 0; overflow-y: auto; padding: 12px; display: flex; flex-direction: column; gap: 9px; background: #F6F8FC; }
.msg { display: flex; }
.msg.left { justify-content: flex-start; }
.msg.right { justify-content: flex-end; }
.msg .bubble { max-width: 80%; padding: 9px 13px; border-radius: 13px; font-size: 13.5px; line-height: 1.7; position: relative; }
.msg.left .bubble { background: #fff; color: var(--text-1); border: 1px solid var(--line); border-top-left-radius: 4px; }
.msg.right .bubble { background: var(--primary); color: #fff; border-top-right-radius: 4px; }
.msg .bubble i { display: block; font-style: normal; font-size: 10.5px; opacity: .55; margin-top: 4px; }
.chat-quick { display: flex; gap: 7px; padding: 9px 12px; flex-wrap: wrap; background: #fff; border-top: 1px solid var(--line); }
.chat-quick button { border: 1px solid rgba(76,92,255,.4); background: #fff; color: var(--primary); font-size: 12px; padding: 5px 12px; border-radius: 999px; cursor: pointer; }
.chat-quick button:hover { background: rgba(76,92,255,.07); }
.chat-input { display: flex; gap: 8px; padding: 10px 12px; background: #fff; border-top: 1px solid var(--line); }
.chat-input input { flex: 1; border: 1.5px solid var(--line); border-radius: 999px; padding: 9px 14px; font-size: 13.5px; }
.chat-input input:focus { outline: none; border-color: var(--primary); }
.chat-input button { background: var(--grad); color: #fff; border: none; border-radius: 999px; padding: 0 18px; font-size: 13.5px; font-weight: 600; cursor: pointer; }
@media (max-width: 720px) {
  .float-contact { right: 12px; bottom: 70px; }
  .chat-widget { right: 12px; bottom: 125px; }
  .chat-panel { right: 12px; bottom: 175px; max-height: calc(100vh - 230px); min-height: 280px; }
}

/* ---------------- 响应式 ---------------- */
@media (max-width: 1080px) {
  .sol-grid { grid-template-columns: repeat(3, 1fr); }
  .promise-grid { grid-template-columns: repeat(3, 1fr); }
  .why-grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 960px) {
  .section { padding: 52px 0; }
  .hero-inner { grid-template-columns: 1fr; gap: 36px; padding-top: 100px; }
  .hero-visual { max-width: 540px; }
  .svc-grid, .case-grid, .news-grid, .price-grid, .voice-grid { grid-template-columns: repeat(2, 1fr); }
  .why-inner { grid-template-columns: 1fr; gap: 28px; }
  .faq-inner { grid-template-columns: 1fr; gap: 26px; }
  .quote-panel { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: repeat(2, 1fr); row-gap: 28px; }
  .process-steps::before { display: none; }
  .stats-inner { grid-template-columns: repeat(2, 1fr); row-gap: 20px; }
}
@media (max-width: 720px) {
  .main-nav { display: none; }
  .burger { display: block; }
  /* Hero 手机端大幅压缩：第一屏不再被大图占满 */
  .hero { min-height: auto; }
  .hero-inner { padding: 88px 16px 56px; gap: 28px; }
  .hero h1 { font-size: clamp(26px, 7.5vw, 34px); margin: 14px 0 12px; }
  .hero-sub { font-size: 14px; line-height: 1.75; }
  .hero-cta { margin: 18px 0 14px; }
  .hero-cta .btn { flex: 1; min-width: 130px; padding: 12px 14px; font-size: 14px; }
  .hero-visual { max-width: 100%; }
  .browser-shot img { height: 190px; }
  .float-chip { padding: 9px 13px; }
  .float-chip b { font-size: 15px; }
  .chip-a { top: -14px; right: 10px; }
  .chip-b { bottom: -12px; left: 12px; }
  .section { padding: 44px 0; }
  .section-head { margin-bottom: 28px; }
  .section-head h2 { font-size: 23px; }
  .svc-grid, .case-grid, .news-grid, .price-grid, .voice-grid, .sol-grid, .promise-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .why-grid-4 { grid-template-columns: 1fr; }
  .pkg-list { grid-template-columns: 1fr; }
  .pkg-opt .pk-name { min-height: 0; }
  .addon-list { grid-template-columns: 1fr; }
  .order-form .form-row { flex-direction: column; gap: 0; }
  .order-panel { padding: 22px 16px 20px; }
  .form-row { flex-direction: column; gap: 0; }
  .quote-info, .quote-form { padding: 24px 20px; }
  .sticky-cta { display: flex; }
  .float-contact { bottom: 78px; right: 12px; }
  .back-top { bottom: 132px; right: 12px; }
  .pay-info { grid-template-columns: 1fr; }
  .pay-card .pc-head, .pay-card .pc-body { padding: 16px 18px 20px; }
  .page-hero { padding: calc(var(--header-h) + 36px) 0 34px; }
  /* 页脚手机端：两列并排，减少纵向空间 */
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px 18px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-col a { padding: 3.5px 0; font-size: 12.5px; }
  .footer-bottom { font-size: 12px; }
}