*{margin:0;padding:0;box-sizing:border-box}
:root{
  --blue:#1a4bd8;
  --blue-dark:#0e2f96;
  --blue-light:#e8effd;
  --blue-mid:#3a6ef0;
  --ink:#15212f;
  --ink-soft:#4a5a6e;
  --ink-mute:#71808f;
  --line:#dde5f3;
  --bg:#f5f8ff;
  --white:#ffffff;
  --radius:16px;
  --shadow:0 10px 30px rgba(20,60,160,.09);
  --shadow-hover:0 18px 44px rgba(20,60,160,.16);
}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
a{text-decoration:none;color:inherit}
img{max-width:100%;height:auto;display:block}
h1,h2,h3{line-height:1.3;font-weight:800;letter-spacing:-.01em}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;min-height:68px;gap:20px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand img{width:36px;height:36px;object-fit:contain;border-radius:8px}
.brand-name{font-size:19px;font-weight:800;color:var(--blue-dark);letter-spacing:.02em}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:nowrap;list-style:none}
.nav-links a{
  display:block;padding:8px 13px;font-size:14.5px;color:var(--ink-soft);
  font-weight:600;border-radius:8px;transition:color .2s,background .2s;white-space:nowrap;
}
.nav-links a:hover{color:var(--blue);background:var(--blue-light)}
.nav-cta{
  display:inline-flex;align-items:center;gap:6px;
  background:linear-gradient(135deg,var(--blue),var(--blue-mid));
  color:#fff;font-weight:700;font-size:14.5px;
  padding:10px 22px;border-radius:10px;flex-shrink:0;
  box-shadow:0 6px 16px rgba(26,75,216,.28);
  transition:transform .2s,box-shadow .2s;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(26,75,216,.36)}
.menu-toggle{
  display:none;background:none;border:1px solid var(--line);
  width:42px;height:42px;border-radius:10px;cursor:pointer;
  position:relative;flex-shrink:0;
}
.menu-toggle span{
  position:absolute;left:11px;right:11px;height:2px;background:var(--blue-dark);
  border-radius:2px;transition:.25s;
}
.menu-toggle span:nth-child(1){top:15px}
.menu-toggle span:nth-child(2){top:20px}
.menu-toggle span:nth-child(3){top:25px}
.menu-toggle.open span:nth-child(1){top:20px;transform:rotate(45deg)}
.menu-toggle.open span:nth-child(2){opacity:0}
.menu-toggle.open span:nth-child(3){top:20px;transform:rotate(-45deg)}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(circle at 12% 18%,rgba(58,110,240,.16),transparent 42%),
    radial-gradient(circle at 88% 8%,rgba(26,75,216,.14),transparent 40%),
    linear-gradient(160deg,#eef4ff 0%,#f7faff 45%,#e9f0ff 100%);
  padding:76px 0 84px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(26,75,216,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(26,75,216,.055) 1px,transparent 1px);
  background-size:52px 52px;
  mask-image:radial-gradient(circle at 50% 40%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 40%,#000 0%,transparent 78%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;text-align:center;max-width:900px;margin:0 auto}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);
  color:var(--blue);font-weight:700;font-size:13px;
  padding:7px 18px;border-radius:999px;margin-bottom:26px;
  box-shadow:0 4px 14px rgba(20,60,160,.08);
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--blue);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.8)}}
.hero h1{
  font-size:clamp(30px,5vw,54px);
  color:var(--blue-dark);
  letter-spacing:-.02em;
  margin-bottom:22px;
}
.hero h1 em{
  font-style:normal;
  color:var(--blue);
  position:relative;display:inline-block;
}
.hero h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:4px;height:10px;
  background:rgba(58,110,240,.2);border-radius:4px;z-index:-1;
}
.hero-desc{font-size:clamp(15px,2vw,18px);color:var(--ink-soft);margin:0 auto 34px;max-width:660px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-bottom:46px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:15px 34px;border-radius:12px;font-weight:700;font-size:16px;
  transition:transform .22s,box-shadow .22s,background .22s;
  cursor:pointer;border:none;
}
.btn-primary{background:linear-gradient(135deg,var(--blue),var(--blue-mid));color:#fff;box-shadow:0 10px 26px rgba(26,75,216,.32)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 36px rgba(26,75,216,.42)}
.btn-ghost{background:#fff;color:var(--blue-dark);border:1.5px solid var(--line)}
.btn-ghost:hover{transform:translateY(-3px);border-color:var(--blue);box-shadow:0 10px 24px rgba(20,60,160,.12)}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  background:rgba(255,255,255,.7);border:1px solid var(--line);
  border-radius:20px;padding:22px 16px;
  backdrop-filter:blur(8px);
  box-shadow:var(--shadow);
}
.stat-item{text-align:center;padding:0 8px}
.stat-item + .stat-item{border-left:1px solid var(--line)}
.stat-num{font-size:clamp(20px,2.6vw,28px);font-weight:800;color:var(--blue);letter-spacing:-.02em}
.stat-label{font-size:12.5px;color:var(--ink-mute);margin-top:4px;font-weight:600}

/* ============ 通用区块 ============ */
.section{padding:72px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 46px}
.section-tag{
  display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:.14em;
  color:var(--blue);background:var(--blue-light);
  padding:6px 16px;border-radius:999px;margin-bottom:16px;text-transform:uppercase;
}
.section-title{font-size:clamp(24px,3.4vw,36px);color:var(--ink);margin-bottom:14px}
.section-sub{color:var(--ink-soft);font-size:15.5px}

/* ============ 关于/平台介绍 ============ */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:start}
.about-text h2{font-size:clamp(24px,3.2vw,32px);color:var(--ink);margin-bottom:18px}
.about-text p{color:var(--ink-soft);font-size:15.5px;margin-bottom:16px}
.about-points{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:24px}
.point-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:16px 16px;transition:transform .22s,box-shadow .22s,border-color .22s;
}
.point-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#b9cdf5}
.point-item strong{display:block;color:var(--blue-dark);font-size:14.5px;margin-bottom:4px}
.point-item span{font-size:13px;color:var(--ink-mute);line-height:1.6}
.about-visual{
  background:linear-gradient(150deg,#1a4bd8,#0e2f96);
  border-radius:20px;padding:32px;color:#fff;
  box-shadow:0 22px 50px rgba(14,47,150,.32);
  position:relative;overflow:hidden;
}
.about-visual::after{
  content:"";position:absolute;width:220px;height:220px;border-radius:50%;
  background:rgba(255,255,255,.09);right:-70px;bottom:-70px;
}
.about-visual h3{font-size:19px;margin-bottom:20px;position:relative;z-index:2}
.model-cloud{display:flex;flex-wrap:wrap;gap:8px;position:relative;z-index:2}
.model-cloud span{
  font-size:12.5px;padding:5px 12px;border-radius:8px;
  background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.2);
  color:#fff;font-weight:600;transition:background .2s;
}
.model-cloud span:hover{background:rgba(255,255,255,.26)}

/* ============ 数据指标 ============ */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.metric-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 22px;transition:transform .25s,box-shadow .25s;
  position:relative;overflow:hidden;
}
.metric-card::before{
  content:"";position:absolute;top:0;left:0;width:100%;height:3px;
  background:linear-gradient(90deg,var(--blue),var(--blue-mid));opacity:0;transition:opacity .25s;
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.metric-card:hover::before{opacity:1}
.metric-card .m-icon{
  width:42px;height:42px;border-radius:11px;background:var(--blue-light);
  color:var(--blue);display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:800;margin-bottom:14px;
}
.metric-card h3{font-size:16px;color:var(--ink);margin-bottom:8px}
.metric-card p{font-size:13.5px;color:var(--ink-mute);line-height:1.65}

/* ============ 服务能力卡片 ============ */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.service-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;transition:transform .25s,box-shadow .25s,border-color .25s;
  display:flex;flex-direction:column;
}
.service-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:#b9cdf5}
.service-num{
  font-size:13px;font-weight:800;color:var(--blue);
  background:var(--blue-light);width:38px;height:38px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.service-card h3{font-size:17px;color:var(--ink);margin-bottom:10px}
.service-card p{font-size:13.5px;color:var(--ink-mute);line-height:1.7;flex:1}
.service-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:16px}
.service-tags span{
  font-size:11.5px;padding:4px 10px;border-radius:6px;
  background:#f0f5ff;color:var(--blue-dark);font-weight:600;
}

/* ============ 流程步骤 ============ */
.flow-wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative}
.flow-step{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 22px;text-align:center;transition:transform .25s,box-shadow .25s;
  position:relative;
}
.flow-step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.flow-dot{
  width:48px;height:48px;border-radius:50%;margin:0 auto 16px;
  background:linear-gradient(135deg,var(--blue),var(--blue-mid));
  color:#fff;font-weight:800;font-size:18px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px rgba(26,75,216,.28);
}
.flow-step h3{font-size:15.5px;color:var(--ink);margin-bottom:8px}
.flow-step p{font-size:13px;color:var(--ink-mute);line-height:1.65}

/* ============ 对比评测 ============ */
.compare-section{background:linear-gradient(180deg,#f5f8ff,#eaf1ff)}
.score-card{
  max-width:640px;margin:0 auto 40px;text-align:center;
  background:#fff;border:1px solid var(--line);border-radius:22px;
  padding:40px 32px;box-shadow:var(--shadow);position:relative;overflow:hidden;
}
.score-card::before{
  content:"";position:absolute;top:-60px;right:-60px;width:180px;height:180px;
  border-radius:50%;background:rgba(26,75,216,.07);
}
.score-value{font-size:clamp(46px,8vw,68px);font-weight:800;color:var(--blue);line-height:1;letter-spacing:-.03em}
.score-value small{font-size:20px;color:var(--ink-mute);font-weight:600}
.score-stars{color:#f5a623;font-size:22px;letter-spacing:4px;margin:12px 0 10px}
.score-desc{color:var(--ink-soft);font-size:14.5px}
.table-scroll{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line);background:#fff}
table{width:100%;border-collapse:collapse;min-width:640px}
thead th{
  background:var(--blue-dark);color:#fff;font-size:14px;font-weight:700;
  padding:15px 18px;text-align:left;
}
thead th:last-child{text-align:center}
tbody td{padding:14px 18px;font-size:14px;color:var(--ink-soft);border-bottom:1px solid var(--line)}
tbody tr:last-child td{border-bottom:none}
tbody tr:nth-child(even){background:#fafcff}
tbody td:first-child{font-weight:700;color:var(--ink)}
tbody td:last-child{text-align:center;color:var(--blue);font-weight:700}
.check{color:#0a9c5b;font-weight:800}

/* ============ 客户评论 ============ */
.comment-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.comment-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;transition:transform .25s,box-shadow .25s;
  display:flex;flex-direction:column;
}
.comment-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.comment-stars{color:#f5a623;font-size:14px;letter-spacing:2px;margin-bottom:12px}
.comment-text{font-size:14px;color:var(--ink-soft);line-height:1.75;flex:1;margin-bottom:18px}
.comment-user{display:flex;align-items:center;gap:12px;padding-top:16px;border-top:1px solid var(--line)}
.avatar{
  width:42px;height:42px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,var(--blue),var(--blue-mid));
  color:#fff;font-weight:800;font-size:16px;
  display:flex;align-items:center;justify-content:center;
}
.comment-user strong{display:block;font-size:14px;color:var(--ink)}
.comment-user span{font-size:12.5px;color:var(--ink-mute)}

/* ============ 案例 / 素材 ============ */
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.case-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:transform .25s,box-shadow .25s;
}
.case-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.case-img{aspect-ratio:16/9;overflow:hidden;background:var(--blue-light)}
.case-img img{width:100%;height:100%;object-fit:cover}
.case-body{padding:18px 20px}
.case-body h3{font-size:15.5px;color:var(--ink);margin-bottom:6px}
.case-body p{font-size:13px;color:var(--ink-mute);line-height:1.6}

/* ============ Token 比价 ============ */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.price-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 24px;transition:transform .25s,box-shadow .25s;
  display:flex;flex-direction:column;
}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.price-card.featured{
  background:linear-gradient(160deg,#1a4bd8,#0e2f96);border-color:transparent;
  box-shadow:0 20px 44px rgba(14,47,150,.3);
}
.price-card.featured *{color:#fff}
.price-label{font-size:13px;font-weight:700;color:var(--blue);margin-bottom:10px;letter-spacing:.04em}
.price-card.featured .price-label{color:#cfe0ff}
.price-main{font-size:30px;font-weight:800;color:var(--ink);letter-spacing:-.02em}
.price-main small{font-size:14px;color:var(--ink-mute);font-weight:600}
.price-card.featured .price-main small{color:#cfe0ff}
.price-list{list-style:none;margin-top:20px;display:flex;flex-direction:column;gap:10px}
.price-list li{font-size:13.5px;color:var(--ink-soft);display:flex;align-items:flex-start;gap:8px}
.price-card.featured .price-list li{color:#e6efff}
.price-list li::before{content:"✓";color:#0a9c5b;font-weight:800;flex-shrink:0}
.price-card.featured .price-list li::before{color:#8ff0bb}

/* ============ 标签云 ============ */
.tagcloud{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;
}
.tagcloud span{
  font-size:13.5px;padding:8px 16px;border-radius:999px;
  background:var(--blue-light);color:var(--blue-dark);font-weight:600;
  transition:transform .2s,background .2s,box-shadow .2s;cursor:default;
}
.tagcloud span:hover{transform:translateY(-2px);background:#d8e5fd;box-shadow:0 6px 16px rgba(26,75,216,.16)}

/* ============ 时间线 ============ */
.timeline{position:relative;padding-left:28px}
.timeline::before{
  content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--blue),#c6d8fb);
}
.tl-item{position:relative;padding-bottom:28px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-28px;top:5px;width:16px;height:16px;
  border-radius:50%;background:#fff;border:3px solid var(--blue);
}
.tl-item h3{font-size:15.5px;color:var(--ink);margin-bottom:6px}
.tl-item p{font-size:13.5px;color:var(--ink-mute);line-height:1.65}

/* ============ 服务网络 ============ */
.network-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.network-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;transition:transform .25s,box-shadow .25s;
}
.network-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.network-card h3{font-size:16px;color:var(--blue-dark);margin-bottom:8px}
.network-card p{font-size:13.5px;color:var(--ink-mute);line-height:1.65}

/* ============ 文章列表 ============ */
.article-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.article-card{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:22px 24px;display:flex;gap:16px;align-items:flex-start;
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.article-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#b9cdf5}
.article-num{
  font-size:22px;font-weight:800;color:var(--blue);opacity:.5;
  line-height:1;flex-shrink:0;letter-spacing:-.02em;
}
.article-card h3{font-size:15px;color:var(--ink);margin-bottom:6px}
.article-card p{font-size:13px;color:var(--ink-mute);line-height:1.6}

/* ============ FAQ ============ */
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  overflow:hidden;transition:box-shadow .25s,border-color .25s;
}
.faq-item:hover{box-shadow:var(--shadow);border-color:#b9cdf5}
.faq-q{
  width:100%;text-align:left;background:none;border:none;
  padding:20px 24px;font-size:15px;font-weight:700;color:var(--ink);
  cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;
  font-family:inherit;transition:color .2s;
}
.faq-q:hover{color:var(--blue)}
.faq-icon{
  width:26px;height:26px;border-radius:50%;background:var(--blue-light);
  color:var(--blue);flex-shrink:0;display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;transition:transform .3s,background .3s,color .3s;
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--blue);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-a-inner{padding:0 24px 20px;font-size:14px;color:var(--ink-soft);line-height:1.75}

/* ============ 表单 ============ */
.form-section{background:linear-gradient(160deg,#0e2f96,#1a4bd8);position:relative;overflow:hidden}
.form-section::before{
  content:"";position:absolute;width:400px;height:400px;border-radius:50%;
  background:rgba(255,255,255,.06);top:-140px;right:-120px;
}
.form-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:start;position:relative;z-index:2}
.form-info h2{font-size:clamp(24px,3.2vw,34px);color:#fff;margin-bottom:16px}
.form-info p{color:#cfe0ff;font-size:15px;margin-bottom:26px;line-height:1.75}
.contact-list{list-style:none;display:flex;flex-direction:column;gap:14px}
.contact-list li{display:flex;align-items:center;gap:12px;color:#e6efff;font-size:14.5px}
.contact-icon{
  width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:15px;
}
.contact-list a{color:#fff;font-weight:600}
.form-box{
  background:#fff;border-radius:20px;padding:34px 30px;
  box-shadow:0 24px 60px rgba(0,0,0,.24);
}
.form-box h3{font-size:19px;color:var(--ink);margin-bottom:22px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.field label{font-size:13.5px;font-weight:700;color:var(--ink)}
.field input,.field select,.field textarea{
  font-family:inherit;font-size:14px;color:var(--ink);
  border:1.5px solid var(--line);border-radius:10px;
  padding:12px 14px;background:#fafcff;outline:none;
  transition:border-color .2s,box-shadow .2s,background .2s;width:100%;
}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--blue);background:#fff;box-shadow:0 0 0 3px rgba(26,75,216,.12);
}
.field textarea{resize:vertical;min-height:96px}
.form-box .btn{width:100%;margin-top:6px}

/* ============ 加盟代理 ============ */
.join-wrap{
  background:linear-gradient(150deg,#eef4ff,#dfe9ff);
  border:1px solid #cddcfb;border-radius:22px;
  padding:48px 40px;display:grid;grid-template-columns:1.1fr .9fr;
  gap:40px;align-items:center;
}
.join-wrap h2{font-size:clamp(24px,3.2vw,32px);color:var(--blue-dark);margin-bottom:16px}
.join-wrap p{font-size:15px;color:var(--ink-soft);line-height:1.75;margin-bottom:24px}
.join-points{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.join-points span{
  font-size:13px;font-weight:700;color:var(--blue-dark);
  background:#fff;border:1px solid #cddcfb;border-radius:8px;padding:7px 14px;
}
.join-contact{background:#fff;border-radius:16px;padding:28px;text-align:center;box-shadow:var(--shadow)}
.join-contact h3{font-size:16px;color:var(--ink);margin-bottom:16px}
.join-contact img{width:150px;height:150px;object-fit:contain;margin:0 auto 14px;border-radius:10px;border:1px solid var(--line)}
.join-contact p{font-size:13px;color:var(--ink-mute)}

/* ============ 友情链接 ============ */
.links-section{padding:44px 0;background:#fff;border-top:1px solid var(--line)}
.links-inner{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:center}
.links-inner strong{font-size:14px;color:var(--ink);margin-right:6px}
.links-inner a{
  font-size:13.5px;color:var(--ink-soft);padding:7px 16px;border-radius:8px;
  background:var(--bg);border:1px solid var(--line);transition:color .2s,background .2s,border-color .2s;
}
.links-inner a:hover{color:var(--blue);background:var(--blue-light);border-color:#c6d8fb}

/* ============ Footer ============ */
.site-footer{background:#0e2f96;color:#cfe0ff;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand img{width:34px;height:34px;object-fit:contain;border-radius:8px}
.footer-brand strong{font-size:18px;color:#fff;font-weight:800}
.footer-col h4{font-size:14.5px;color:#fff;margin-bottom:16px;font-weight:700}
.footer-col p{font-size:13.5px;color:#aac4f0;line-height:1.75;margin-bottom:8px}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:13.5px;color:#aac4f0;transition:color .2s}
.footer-col ul a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:22px 0;
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
}
.footer-bottom p{font-size:13px;color:#aac4f0}
.footer-bottom a{color:#cfe0ff;font-weight:600}

/* ============ 浮动客服 ============ */
.float-service{position:fixed;right:22px;bottom:86px;z-index:90}
.float-btn{
  width:56px;height:56px;border-radius:50%;border:none;cursor:pointer;
  background:linear-gradient(135deg,var(--blue),var(--blue-mid));
  color:#fff;font-size:22px;display:flex;align-items:center;justify-content:center;
  box-shadow:0 10px 26px rgba(26,75,216,.4);transition:transform .25s,box-shadow .25s;
}
.float-btn:hover{transform:scale(1.08);box-shadow:0 14px 32px rgba(26,75,216,.5)}
.float-panel{
  position:absolute;right:0;bottom:70px;width:230px;background:#fff;
  border:1px solid var(--line);border-radius:16px;padding:20px;
  box-shadow:0 20px 50px rgba(20,60,160,.2);text-align:center;
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .25s,transform .25s,visibility .25s;
}
.float-panel.show{opacity:1;visibility:visible;transform:translateY(0)}
.float-panel h4{font-size:14.5px;color:var(--ink);margin-bottom:12px}
.float-panel img{width:150px;height:150px;object-fit:contain;margin:0 auto 10px;border-radius:8px;border:1px solid var(--line)}
.float-panel p{font-size:12.5px;color:var(--ink-mute);line-height:1.6}
.back-top{
  position:fixed;right:22px;bottom:22px;z-index:90;
  width:48px;height:48px;border-radius:50%;border:1px solid var(--line);
  background:#fff;color:var(--blue);font-size:20px;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 20px rgba(20,60,160,.14);
  opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s,transform .25s;
}
.back-top.show{opacity:1;visibility:visible}
.back-top:hover{transform:translateY(-3px)}

/* ============ 动画 ============ */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ============ 响应式 ============ */
@media(max-width:1024px){
  .nav-links{display:none}
  .menu-toggle{display:block}
  .nav-links.active{
    display:flex;position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;
    background:#fff;border-bottom:1px solid var(--line);
    padding:14px 20px 20px;gap:2px;box-shadow:0 16px 30px rgba(20,60,160,.1);
  }
  .nav-links.active a{padding:12px 14px;border-radius:8px}
  .about-grid{grid-template-columns:1fr;gap:32px}
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .flow-wrap{grid-template-columns:repeat(2,1fr)}
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .comment-grid{grid-template-columns:repeat(2,1fr)}
  .price-grid{grid-template-columns:1fr}
  .network-grid{grid-template-columns:repeat(2,1fr)}
  .form-grid{grid-template-columns:1fr;gap:32px}
  .join-wrap{grid-template-columns:1fr;padding:36px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media(max-width:768px){
  .nav-cta{display:none}
  .hero{padding:56px 0 62px}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:14px}
  .stat-item + .stat-item{border-left:none}
  .stat-item:nth-child(2),.stat-item:nth-child(4){border-left:1px solid var(--line)}
  .section{padding:52px 0}
  .service-grid,.comment-grid,.case-grid,.article-grid,.network-grid{grid-template-columns:1fr}
  .flow-wrap{grid-template-columns:1fr}
  .about-points{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr;gap:0}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;text-align:center}
  .score-card{padding:32px 22px}
  .join-wrap{padding:30px 22px}
  .float-service{right:14px;bottom:80px}
  .back-top{right:14px;bottom:16px}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}