/* =====================================================
   卡密AI 企业官网 · 设计系统 V1.0
   品牌色：深空蓝 #04286B / 品牌蓝 #1470C8 / 高光蓝 #0A9FF8
           雾蓝白 #F2F7FD / 墨灰 #333333 / 静默灰 #8A94A6
           点睛橙 #FF7A45（仅 CTA，占比 <2%）
   渐变方向：左上深 → 右下亮（与 Logo 一致）
   ===================================================== */

:root {
  --navy: #04286B;
  --navy-2: #0A3E92;
  --blue: #1470C8;
  --sky: #0A9FF8;
  --mist: #F2F7FD;
  --mist-2: #EAF3FC;
  --ink: #333333;
  --body: #4A5468;
  --gray: #8A94A6;
  --line: #DFEAF7;
  --orange: #FF7A45;
  --grad-brand: linear-gradient(135deg, #04286B 0%, #0A3E92 55%, #1470C8 100%);
  --grad-accent: linear-gradient(135deg, #0A9FF8 0%, rgba(10, 159, 248, 0.25) 100%);
  --shadow-sm: 0 2px 10px rgba(4, 40, 107, 0.06);
  --shadow-md: 0 10px 30px rgba(4, 40, 107, 0.10);
  --shadow-lg: 0 18px 50px rgba(4, 40, 107, 0.16);
  --radius: 14px;
  --header-h: 72px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: "Microsoft YaHei", "微软雅黑", "PingFang SC", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
em { font-style: normal; }
b, strong { color: var(--navy); }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ============ 通用文字 ============ */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; letter-spacing: 0.14em;
  color: var(--blue); text-transform: uppercase;
  margin-bottom: 14px;
}
.eyebrow::before {
  content: ""; width: 22px; height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--sky)); border-radius: 1px;
}
.sec-head { max-width: 820px; margin-bottom: 48px; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.sec-head.center .eyebrow::before { display: none; }
.sec-head h2 {
  font-size: clamp(26px, 3.4vw, 38px); line-height: 1.3;
  color: var(--navy); font-weight: 700; letter-spacing: 0.01em;
}
.sec-head h2 em { color: var(--blue); }
.sec-head .sec-sub { margin-top: 14px; color: var(--gray); font-size: 16px; line-height: 1.8; }
.sec-head .sec-sub b { color: var(--body); }

.lead-text { font-size: 17px; color: var(--body); line-height: 1.9; }
.lead-text b { color: var(--navy); }
.note-src { font-size: 12.5px; color: var(--gray); line-height: 1.7; margin-top: 18px; }
.hl { color: var(--sky); font-weight: 700; }

/* ============ 按钮 ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 30px; border-radius: 999px; border: 0;
  font-size: 16px; font-weight: 700; letter-spacing: 0.02em;
  cursor: pointer; transition: all 0.25s ease; white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; }
.btn-primary { background: var(--grad-brand); color: #fff; box-shadow: 0 8px 22px rgba(4, 40, 107, 0.28); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(4, 40, 107, 0.36); }
.btn-sky { background: var(--sky); color: #fff; box-shadow: 0 8px 22px rgba(10, 159, 248, 0.35); }
.btn-sky:hover { transform: translateY(-2px); }
.btn-orange { background: var(--orange); color: #fff; box-shadow: 0 8px 22px rgba(255, 122, 69, 0.35); }
.btn-orange:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(255, 122, 69, 0.45); }
.btn-ghost { background: transparent; color: var(--navy); border: 1.5px solid rgba(4, 40, 107, 0.35); }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); background: rgba(20, 112, 200, 0.05); }
.btn-ghost-light { background: rgba(255, 255, 255, 0.08); color: #fff; border: 1.5px solid rgba(255, 255, 255, 0.45); }
.btn-ghost-light:hover { background: rgba(255, 255, 255, 0.16); }
.btn-sm { padding: 10px 22px; font-size: 14.5px; }

/* ============ 顶部导航 ============ */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: box-shadow 0.25s ease, border-color 0.25s ease;
}
.site-header.scrolled { box-shadow: var(--shadow-sm); border-bottom-color: var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 100%; gap: 20px; }

.brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand img { height: 40px; width: auto; }
.brand-text { line-height: 1.2; }
.brand-name { display: block; font-size: 21px; font-weight: 700; color: var(--navy); letter-spacing: 0.02em; }
.brand-sub { display: block; font-size: 10.5px; color: var(--gray); letter-spacing: 0.06em; margin-top: 2px; }

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  position: relative; padding: 10px 14px; font-size: 15px; font-weight: 500;
  color: var(--body); border-radius: 8px; transition: color 0.2s ease;
}
.main-nav a:hover { color: var(--blue); }
.main-nav a.active { color: var(--navy); font-weight: 700; }
.main-nav a.active::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 4px;
  height: 3px; border-radius: 2px; background: linear-gradient(90deg, var(--blue), var(--sky));
}
.header-cta { flex-shrink: 0; }

.nav-toggle {
  display: none; width: 42px; height: 42px; border: 1px solid var(--line);
  border-radius: 10px; background: #fff; cursor: pointer;
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--navy); border-radius: 1px; transition: all 0.25s ease; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============ 首页 Hero ============ */
.hero {
  position: relative; overflow: hidden; color: #fff;
  background: var(--grad-brand);
  padding: calc(var(--header-h) + 84px) 0 96px;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(900px 420px at 88% 8%, rgba(10, 159, 248, 0.22), transparent 65%),
    radial-gradient(700px 500px at 6% 96%, rgba(10, 159, 248, 0.12), transparent 60%);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 48px; align-items: center; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255, 255, 255, 0.10); border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px; padding: 7px 16px; font-size: 13.5px; color: #CFE6FF;
  letter-spacing: 0.04em; margin-bottom: 22px;
}
.hero-badge b { color: #fff; }
.hero h1 { font-size: clamp(34px, 4.6vw, 56px); line-height: 1.22; font-weight: 700; letter-spacing: 0.02em; }
.hero h1 .slogan { display: block; }
.hero h1 .slogan em {
  font-style: normal;
  background: linear-gradient(90deg, #6FC8FF, #B4E3FF);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-pos { margin-top: 18px; font-size: clamp(15px, 1.8vw, 19px); color: #A9CFF5; letter-spacing: 0.03em; }
.hero-pos b { color: #fff; font-weight: 600; }
.pos-ph { white-space: nowrap; }
.hero-desc { margin-top: 14px; max-width: 560px; color: rgba(255, 255, 255, 0.82); font-size: 15.5px; line-height: 1.85; }
.hero-actions { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 14px; }

.hero-visual { position: relative; }
.hero-visual .hv-img {
  border-radius: 18px; overflow: hidden; box-shadow: 0 30px 70px rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.18);
}
.hero-visual .hv-img img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 3; }
.hv-chip {
  position: absolute; left: -18px; bottom: 22px;
  background: #fff; border-radius: 14px; padding: 13px 18px;
  box-shadow: var(--shadow-lg); color: var(--ink);
  display: flex; align-items: center; gap: 12px;
}
.hv-chip .n { font-size: 24px; font-weight: 700; color: var(--blue); line-height: 1; }
.hv-chip .t { font-size: 12.5px; color: var(--gray); line-height: 1.45; }

.hero-stats {
  position: relative; z-index: 2; margin-top: 64px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
}
.hstat {
  background: rgba(255, 255, 255, 0.07); border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius); padding: 20px 22px;
}
.hstat .num { font-size: clamp(26px, 2.6vw, 34px); font-weight: 700; color: #fff; line-height: 1.15; }
.hstat .num i { font-style: normal; font-size: 0.6em; margin-left: 2px; color: #8FD2FF; }
.hstat .lbl { margin-top: 6px; font-size: 13.5px; color: #A9CFF5; line-height: 1.5; }

/* ============ 装饰三角（品牌符号） ============ */
.tri-deco { position: absolute; pointer-events: none; clip-path: polygon(50% 0%, 100% 100%, 0% 100%); }
.hero .tri-a { width: 220px; height: 220px; right: -60px; top: 40px; background: var(--grad-accent); opacity: 0.35; }
.hero .tri-b { width: 130px; height: 130px; right: 120px; bottom: -30px; background: linear-gradient(135deg, #4FC3FF, rgba(79, 195, 255, 0.15)); opacity: 0.30; }

/* ============ 子页 Hero ============ */
.page-hero { position: relative; overflow: hidden; color: #fff; background: var(--grad-brand); padding: calc(var(--header-h) + 64px) 0 64px; }
.page-hero .bg-img { position: absolute; inset: 0; }
.page-hero .bg-img img { width: 100%; height: 100%; object-fit: cover; opacity: 0.30; }
.page-hero .bg-mask { position: absolute; inset: 0; background: linear-gradient(120deg, rgba(4, 40, 107, 0.92) 20%, rgba(4, 40, 107, 0.55) 70%, rgba(10, 62, 146, 0.45)); }
.page-hero .inner { position: relative; z-index: 2; max-width: 860px; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: #9FC4EE; margin-bottom: 18px; letter-spacing: 0.04em; }
.breadcrumb a { color: #9FC4EE; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { opacity: 0.5; }
.page-hero h1 { font-size: clamp(28px, 3.8vw, 44px); font-weight: 700; line-height: 1.28; }
.page-hero .ph-sub { margin-top: 14px; font-size: clamp(15px, 1.7vw, 18px); color: #A9CFF5; }
.page-hero .ph-sub b { color: #fff; }
.page-hero .ph-tagline {
  margin-top: 26px; display: inline-flex; align-items: center; gap: 10px;
  background: rgba(255, 255, 255, 0.10); border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 12px; padding: 12px 20px; font-size: 15px; color: #DCEBFF;
}
.page-hero .ph-tagline b { color: #7FD1FF; }

/* ============ 区块布局 ============ */
.section { padding: 88px 0; }
.section.mist { background: var(--mist); }
.section.navy { background: var(--grad-brand); color: #fff; }
.section.navy .sec-head h2 { color: #fff; }
.section.navy .sec-head .sec-sub { color: #A9CFF5; }
.section.navy .sec-head .sec-sub b { color: #fff; }
.section.tight { padding: 64px 0; }
.divider-tri { height: 4px; background: linear-gradient(90deg, var(--navy) 0%, var(--blue) 55%, var(--sky) 100%); }

/* ============ 卡片网格 ============ */
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }
.grid-agent { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.grid-mode { grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 26px; transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: #C6DDF4; }
.card .card-top { height: 4px; position: absolute; top: 0; left: 0; right: 0; background: linear-gradient(90deg, var(--blue), var(--sky)); transform: scaleX(0); transform-origin: left; transition: transform 0.3s ease; }
.card:hover .card-top { transform: scaleX(1); }

.icon-badge {
  width: 52px; height: 52px; border-radius: 13px; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--navy), var(--blue)); color: #fff; margin-bottom: 18px;
  box-shadow: 0 6px 16px rgba(4, 40, 107, 0.22); flex-shrink: 0;
}
.icon-badge svg { width: 26px; height: 26px; }
.icon-badge.sky { background: linear-gradient(135deg, var(--blue), var(--sky)); }
.icon-badge.light { background: var(--mist-2); color: var(--blue); box-shadow: none; }

.card h3 { font-size: 18.5px; color: var(--navy); font-weight: 700; line-height: 1.4; }
.card .card-desc { margin-top: 10px; font-size: 14.5px; color: var(--body); line-height: 1.8; }
.card ul.ticks { margin-top: 14px; }
.card .card-num {
  position: absolute; top: 18px; right: 22px; font-size: 40px; font-weight: 800;
  color: var(--mist-2); line-height: 1; font-family: Georgia, serif;
}
.card .tag-line { margin-top: 16px; font-size: 13px; font-weight: 700; color: var(--blue); }

ul.ticks li {
  position: relative; padding-left: 26px; margin-bottom: 9px;
  font-size: 14.5px; color: var(--body); line-height: 1.65;
}
ul.ticks li::before {
  content: ""; position: absolute; left: 2px; top: 8px;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--mist-2) url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="%231470C8" stroke-width="3.5" stroke-linecap="round" stroke-linejoin="round"><polyline points="4 12.5 10 18 20 6"/></svg>') center/9px no-repeat;
}
ul.ticks li b { color: var(--navy); }

ul.cross li { position: relative; padding-left: 26px; margin-bottom: 9px; font-size: 14.5px; color: var(--body); line-height: 1.65; }
ul.cross li::before {
  content: ""; position: absolute; left: 2px; top: 8px; width: 14px; height: 14px; border-radius: 50%;
  background: #FBEDE6 url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="%23C0392B" stroke-width="3.5" stroke-linecap="round"><line x1="6" y1="6" x2="18" y2="18"/><line x1="18" y1="6" x2="6" y2="18"/></svg>') center/9px no-repeat;
}

/* ============ 业务板块大卡（首页） ============ */
.biz-card {
  position: relative; border-radius: 18px; overflow: hidden;
  background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column; transition: transform 0.28s ease, box-shadow 0.28s ease;
}
.biz-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.biz-card .biz-img { position: relative; aspect-ratio: 16 / 9; overflow: hidden; }
.biz-card .biz-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.biz-card:hover .biz-img img { transform: scale(1.05); }
.biz-card .biz-img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(4,40,107,0) 40%, rgba(4,40,107,0.55)); }
.biz-card .biz-idx {
  position: absolute; top: 16px; left: 16px; z-index: 2;
  background: rgba(4, 40, 107, 0.85); color: #fff; font-size: 13px; font-weight: 700;
  padding: 6px 14px; border-radius: 999px; letter-spacing: 0.08em;
  backdrop-filter: blur(4px);
}
.biz-card .biz-body { padding: 26px 26px 28px; flex: 1; display: flex; flex-direction: column; }
.biz-card .biz-kicker { font-size: 13px; font-weight: 700; color: var(--blue); letter-spacing: 0.06em; }
.biz-card h3 { margin-top: 6px; font-size: 21px; color: var(--navy); }
.biz-card .biz-desc { margin-top: 10px; font-size: 14.5px; color: var(--body); line-height: 1.8; flex: 1; }
.biz-card .biz-link {
  margin-top: 18px; display: inline-flex; align-items: center; gap: 6px;
  font-size: 14.5px; font-weight: 700; color: var(--blue);
}
.biz-card .biz-link svg { width: 16px; height: 16px; transition: transform 0.2s ease; }
.biz-card:hover .biz-link svg { transform: translateX(4px); }

/* ============ KPI 数据卡 ============ */
.kpi-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 22px; text-align: center; box-shadow: var(--shadow-sm);
}
.kpi-card .knum { font-size: clamp(30px, 3vw, 42px); font-weight: 800; color: var(--blue); line-height: 1.1; letter-spacing: -0.01em; }
.kpi-card .knum small { font-size: 0.5em; font-weight: 700; margin-left: 2px; }
.kpi-card .klbl { margin-top: 10px; font-size: 15px; font-weight: 700; color: var(--navy); }
.kpi-card .knote { margin-top: 6px; font-size: 12.5px; color: var(--gray); line-height: 1.6; }
.section.navy .kpi-card { background: rgba(255,255,255,0.07); border-color: rgba(255,255,255,0.18); box-shadow: none; }
.section.navy .kpi-card .knum { color: #7FD1FF; }
.section.navy .kpi-card .klbl { color: #fff; }
.section.navy .kpi-card .knote { color: #A9CFF5; }

/* ============ 流程步骤 ============ */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; counter-reset: step; }
.steps-4 { grid-template-columns: repeat(4, 1fr); }
.step {
  position: relative; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 24px 18px 22px; text-align: center;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.step:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.step .s-no {
  width: 44px; height: 44px; margin: 0 auto 14px; border-radius: 50%;
  background: var(--grad-brand); color: #fff; font-weight: 800; font-size: 17px;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 14px rgba(4, 40, 107, 0.25);
}
.step h4 { font-size: 16.5px; color: var(--navy); font-weight: 700; }
.step p { margin-top: 8px; font-size: 13px; color: var(--gray); line-height: 1.65; }
.steps-5 .step:not(:last-child)::after {
  content: ""; position: absolute; top: 45px; right: -12px; width: 8px; height: 8px;
  border-top: 2px solid #B9CFEA; border-right: 2px solid #B9CFEA; transform: rotate(45deg);
}

/* ============ 对比表 ============ */
.table-wrap {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow-sm); overflow-x: auto;
}
.cmp-table { width: 100%; border-collapse: collapse; min-width: 680px; }
.cmp-table th {
  background: var(--grad-brand); color: #fff; font-size: 15px; font-weight: 700;
  padding: 16px 20px; text-align: left; letter-spacing: 0.02em; white-space: nowrap;
}
.cmp-table th:first-child { width: 150px; }
.cmp-table td { padding: 15px 20px; font-size: 14.5px; color: var(--body); border-top: 1px solid var(--line); line-height: 1.7; vertical-align: top; }
.cmp-table td.dim { font-weight: 700; color: var(--navy); background: var(--mist); white-space: nowrap; }
.cmp-table td.win { background: rgba(10, 159, 248, 0.05); }
.cmp-table td.win b { color: var(--blue); }
.cmp-table tr:hover td:not(.dim) { background: #F8FBFE; }
.cmp-table td.dim + td { background: #F5F6F8; }
.cmp-table tr:hover td.dim { background: var(--mist-2); }

/* ============ 对比卡（误区 vs 做法） ============ */
.vs-wrap { display: grid; grid-template-columns: 1fr 64px 1fr; align-items: stretch; gap: 0; }
.vs-col { border-radius: var(--radius); padding: 30px 28px; }
.vs-col.bad { background: #F5F6F8; border: 1px solid #E6E9EF; }
.vs-col.good { background: var(--mist); border: 1px solid #CBE2F7; }
.vs-col h3 { font-size: 18px; display: flex; align-items: center; gap: 10px; }
.vs-col.bad h3 { color: #6B7280; }
.vs-col.good h3 { color: var(--navy); }
.vs-col h3 .dot { width: 30px; height: 30px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-size: 15px; font-weight: 800; flex-shrink: 0; }
.vs-col.bad .dot { background: #E5E8EE; color: #9AA3B2; }
.vs-col.good .dot { background: var(--blue); color: #fff; }
.vs-mid { display: flex; align-items: center; justify-content: center; }
.vs-mid .vs-badge {
  width: 52px; height: 52px; border-radius: 50%; background: var(--grad-brand); color: #fff;
  display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 16px;
  box-shadow: var(--shadow-md); z-index: 2;
}
.vs-col ul { margin-top: 18px; }
.vs-col.bad ul li { padding-left: 26px; position: relative; margin-bottom: 12px; font-size: 14.5px; color: #6B7280; line-height: 1.7; }
.vs-col.bad ul li::before { content: "×"; position: absolute; left: 2px; top: 0; color: #C0392B; font-weight: 800; }
.vs-col.good ul li { padding-left: 26px; position: relative; margin-bottom: 12px; font-size: 14.5px; color: var(--body); line-height: 1.7; }
.vs-col.good ul li::before {
  content: ""; position: absolute; left: 2px; top: 7px; width: 14px; height: 14px; border-radius: 50%;
  background: var(--mist-2) url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="none" stroke="%231470C8" stroke-width="3.5" stroke-linecap="round" stroke-linejoin="round"><polyline points="4 12.5 10 18 20 6"/></svg>') center/9px no-repeat;
}
.vs-col.good ul li b { color: var(--navy); }

/* ============ 客户证言 ============ */
.quote-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 26px; position: relative; box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.quote-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.quote-card::before {
  content: "\201C"; position: absolute; top: 6px; left: 18px;
  font-size: 64px; color: var(--mist-2); font-family: Georgia, serif; line-height: 1;
}
.quote-card .q-text { position: relative; font-size: 15.5px; color: var(--ink); line-height: 1.85; font-weight: 500; }
.quote-card .q-text b { color: var(--blue); }
.quote-card .q-from { margin-top: 16px; font-size: 13px; color: var(--gray); display: flex; align-items: center; gap: 8px; }
.quote-card .q-from::before { content: ""; width: 18px; height: 2px; background: var(--sky); border-radius: 1px; }

/* ============ FAQ 手风琴 ============ */
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: 12px; margin-bottom: 14px; overflow: hidden; transition: box-shadow 0.25s ease; }
.faq-item[open] { box-shadow: var(--shadow-md); border-color: #C6DDF4; }
.faq-item summary {
  list-style: none; cursor: pointer; padding: 19px 52px 19px 22px;
  font-size: 16px; font-weight: 700; color: var(--navy); position: relative; line-height: 1.55;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; position: absolute; right: 20px; top: 50%; transform: translateY(-50%);
  width: 26px; height: 26px; border-radius: 50%; background: var(--mist);
  color: var(--blue); font-size: 18px; font-weight: 400; display: flex; align-items: center; justify-content: center;
  transition: transform 0.25s ease, background 0.25s ease;
}
.faq-item[open] summary::after { content: "\2212"; background: var(--blue); color: #fff; }
.faq-item .faq-a { padding: 0 22px 20px; font-size: 14.5px; color: var(--body); line-height: 1.85; }
.faq-item .faq-a b { color: var(--navy); }

/* ============ CTA 条带 ============ */
.cta-band { position: relative; overflow: hidden; color: #fff; background: var(--grad-brand); }
.cta-band::before { content: ""; position: absolute; inset: 0; background: radial-gradient(700px 340px at 85% 20%, rgba(10,159,248,0.25), transparent 60%); }
.cta-inner { position: relative; z-index: 2; padding: 64px 0; display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.cta-inner h2 { font-size: clamp(22px, 2.8vw, 32px); font-weight: 700; line-height: 1.4; }
.cta-inner h2 em { color: #7FD1FF; font-style: normal; }
.cta-inner p { margin-top: 10px; color: #A9CFF5; font-size: 15px; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.cta-band .tri-a { width: 180px; height: 180px; right: -40px; bottom: -60px; background: var(--grad-accent); opacity: 0.3; }

/* ============ 页脚 ============ */
.site-footer { background: #031F52; color: #fff; }
.footer-main { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.3fr; gap: 40px; padding: 64px 0 48px; }
.f-brand img { height: 84px; width: auto; }
.f-slogan { margin-top: 16px; font-size: 17px; font-weight: 700; letter-spacing: 0.05em; }
.f-pos { margin-top: 6px; font-size: 12.5px; color: #8FB6E4; line-height: 1.7; }
.f-desc { margin-top: 14px; font-size: 13px; color: rgba(255,255,255,0.62); line-height: 1.8; max-width: 300px; }
.f-col h4 { font-size: 15px; font-weight: 700; margin-bottom: 18px; color: #fff; letter-spacing: 0.04em; }
.f-col ul li { margin-bottom: 11px; }
.f-col ul a { font-size: 13.5px; color: rgba(255, 255, 255, 0.68); transition: color 0.2s ease; }
.f-col ul a:hover { color: #7FD1FF; }
.f-col .f-item { display: flex; gap: 10px; font-size: 13.5px; color: rgba(255, 255, 255, 0.75); line-height: 1.7; margin-bottom: 12px; }
.f-col .f-item i { font-style: normal; color: #7FA8D9; flex-shrink: 0; }
.f-col .f-item b { color: #fff; font-weight: 600; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.12); padding: 20px 0; }
.fb-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 12.5px; color: rgba(255, 255, 255, 0.5); }
.fb-inner a { color: rgba(255, 255, 255, 0.5); }
.fb-inner a:hover { color: #7FD1FF; }

/* ============ 数字胶囊 / 徽标 ============ */
.pill { display: inline-block; background: var(--mist); color: var(--blue); border-radius: 999px; padding: 4px 13px; font-size: 12.5px; font-weight: 700; letter-spacing: 0.04em; }
.pill.solid { background: var(--navy); color: #fff; }
.pill.line { background: #fff; border: 1px solid var(--line); color: var(--body); font-weight: 500; }

/* ============ 图片卡（图文并排区块） ============ */
.media-row { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.media-row.rev { direction: rtl; }
.media-row.rev > * { direction: ltr; }
.media-img { border-radius: 18px; overflow: hidden; box-shadow: var(--shadow-lg); position: relative; }
.media-img img { width: 100%; object-fit: cover; aspect-ratio: 4/3; }
.media-img .img-chip {
  position: absolute; bottom: 14px; left: 14px; right: 14px;
  background: rgba(4, 40, 107, 0.82); backdrop-filter: blur(6px);
  color: #fff; border-radius: 10px; padding: 10px 16px; font-size: 13px; line-height: 1.6;
}
.media-img .img-chip b { color: #7FD1FF; }

/* ============ 返回顶部 ============ */
.back-top {
  position: fixed; right: 26px; bottom: 30px; z-index: 900;
  width: 46px; height: 46px; border-radius: 12px; border: 0; cursor: pointer;
  background: var(--grad-brand); color: #fff; box-shadow: var(--shadow-md);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transform: translateY(12px);
  transition: all 0.3s ease;
}
.back-top.show { opacity: 1; visibility: visible; transform: none; }
.back-top:hover { transform: translateY(-3px); }
.back-top svg { width: 20px; height: 20px; }

/* ============ 滚动进场动效 ============ */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: 0.08s; } .reveal.d2 { transition-delay: 0.16s; }
.reveal.d3 { transition-delay: 0.24s; } .reveal.d4 { transition-delay: 0.32s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ============ 联系页 ============ */
.contact-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.contact-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 24px; text-align: center; box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.contact-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.contact-card .icon-badge { margin: 0 auto 16px; }
.contact-card h3 { font-size: 16px; color: var(--navy); }
.contact-card .c-val { margin-top: 8px; font-size: 17px; font-weight: 700; color: var(--blue); letter-spacing: 0.02em; word-break: break-all; }
.contact-card .c-note { margin-top: 6px; font-size: 12.5px; color: var(--gray); }

.form-panel {
  background: #fff; border: 1px solid var(--line); border-radius: 18px;
  padding: 36px; box-shadow: var(--shadow-md);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-field { display: flex; flex-direction: column; gap: 7px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: 13.5px; font-weight: 700; color: var(--navy); }
.form-field label span { color: #C0392B; }
.form-field input, .form-field select, .form-field textarea {
  border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px;
  font-size: 14.5px; font-family: inherit; color: var(--ink); background: #FBFDFF;
  transition: border-color 0.2s ease, box-shadow 0.2s ease; outline: none; width: 100%;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  border-color: var(--blue); box-shadow: 0 0 0 3px rgba(20, 112, 200, 0.12); background: #fff;
}
.form-field textarea { min-height: 110px; resize: vertical; }
.form-tip { font-size: 12.5px; color: var(--gray); margin-top: 14px; line-height: 1.7; }

/* ============ 关于页时间线/概况 ============ */
.fact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.fact-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px 22px; box-shadow: var(--shadow-sm); }
.fact-card .f-no { font-size: 13px; font-weight: 800; color: var(--sky); letter-spacing: 0.12em; }
.fact-card h4 { margin-top: 8px; font-size: 15.5px; color: var(--navy); font-weight: 700; }
.fact-card p { margin-top: 6px; font-size: 13.5px; color: var(--body); line-height: 1.7; }

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { max-width: 560px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { gap: 16px; }
  .grid-5 { grid-template-columns: repeat(3, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .steps-5 .step:nth-child(3)::after { display: none; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 36px; }
  .media-row, .media-row.rev { grid-template-columns: 1fr; gap: 32px; }
  .vs-wrap { grid-template-columns: 1fr; gap: 18px; }
  .vs-mid { padding: 6px 0; }
  .fact-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --header-h: 64px; }
  .main-nav {
    position: fixed; top: var(--header-h); left: 0; right: 0;
    background: #fff; flex-direction: column; align-items: stretch; gap: 0;
    padding: 10px 20px 20px; box-shadow: var(--shadow-md);
    transform: translateY(-12px); opacity: 0; visibility: hidden;
    transition: all 0.25s ease; max-height: calc(100vh - var(--header-h)); overflow-y: auto;
  }
  .main-nav.open { transform: none; opacity: 1; visibility: visible; }
  .main-nav a { padding: 13px 10px; border-bottom: 1px solid var(--mist); font-size: 15.5px; border-radius: 0; }
  .main-nav a.active::after { display: none; }
  .main-nav a.active { color: var(--blue); }
  .nav-toggle { display: flex; }
  .header-cta { display: none; }
  .hero { padding: calc(var(--header-h) + 56px) 0 64px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 44px; }
  .section { padding: 60px 0; }
  .sec-head { margin-bottom: 34px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr 1fr; }
  .steps-5 .step::after { display: none !important; }
  .footer-main { grid-template-columns: 1fr; gap: 30px; padding: 48px 0 36px; }
  .cta-inner { flex-direction: column; align-items: flex-start; padding: 52px 0; }
  .hv-chip { left: 10px; }
  .form-panel { padding: 26px 20px; }
  .form-grid { grid-template-columns: 1fr; }
  .brand-sub { display: none; }
}

@media (max-width: 560px) {
  .grid-4, .steps, .hero-stats { grid-template-columns: 1fr 1fr; }
  .grid-5 { grid-template-columns: 1fr 1fr; }
  .fact-grid, .contact-grid { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; }
  .cmp-table { min-width: 560px; }
  .back-top { right: 16px; bottom: 20px; }
}