:root{
  --ink:#141334;
  --ink-2:#3c3b5c;
  --muted:#63628a;
  --brand:#4a2fe8;
  --brand-2:#ff4d47;
  --accent:#00bfa5;
  --gold:#ffbd2e;
  --line:#e5e2f7;
  --bg:#f7f6ff;
  --radius:20px;
  --shadow:0 24px 48px -34px rgba(30,22,90,.55);
  --shadow-hover:0 32px 60px -30px rgba(30,22,90,.5);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  color:var(--ink);
  background-color:var(--bg);
  background-image:
    radial-gradient(820px 460px at 8% -6%, #eae4ff 0%, rgba(234,228,255,0) 62%),
    radial-gradient(760px 460px at 98% -2%, #ffe6df 0%, rgba(255,230,223,0) 58%);
  background-repeat:no-repeat;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{margin:0;line-height:1.25;letter-spacing:-.4px;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 20px;}
section[id]{scroll-margin-top:88px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:68px;position:relative;}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:.2px;flex-shrink:0;color:var(--ink);}
.ai-page-logo{max-height:38px;width:auto;}
.brand-text{white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:nowrap;}
.nav-links a{
  display:block;
  padding:8px 10px;
  font-size:14px;
  font-weight:600;
  color:#3b3b56;
  border-radius:10px;
  white-space:nowrap;
  transition:color .2s ease, background-color .2s ease;
}
.nav-links a:hover{color:var(--brand);background:#f0edff;}
.nav-cta{
  flex-shrink:0;
  display:inline-flex;align-items:center;justify-content:center;
  padding:9px 18px;border-radius:999px;
  font-size:14px;font-weight:700;color:#fff;
  background:linear-gradient(120deg,#4a2fe8,#7a3bff);
  box-shadow:0 12px 24px -14px rgba(74,47,232,.9);
  transition:transform .2s ease, box-shadow .2s ease;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 18px 30px -16px rgba(74,47,232,1);}
.nav-toggle{
  display:none;
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;
  cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#3b3b56;border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:#3b3b56;border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:999px;
  font-size:15px;font-weight:700;border:0;cursor:pointer;
  transition:transform .2s ease, box-shadow .2s ease, background-color .2s ease;
}
.btn-primary{
  color:#fff;
  background:linear-gradient(120deg,#4a2fe8,#7a3bff);
  box-shadow:0 16px 30px -16px rgba(74,47,232,.95);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 22px 36px -16px rgba(74,47,232,1);}
.btn-hot{
  color:#fff;
  background:linear-gradient(120deg,#ff4d47,#ff8a3d);
  box-shadow:0 16px 30px -16px rgba(255,77,71,.9);
}
.btn-hot:hover{transform:translateY(-2px);box-shadow:0 22px 36px -18px rgba(255,77,71,1);}
.btn-ghost{
  color:var(--brand);background:#fff;border:1.5px solid #d8d2ff;
}
.btn-ghost:hover{transform:translateY(-2px);box-shadow:0 16px 28px -20px rgba(74,47,232,.8);}

/* ---------- 首屏 ---------- */
.hero{position:relative;padding:70px 0 60px;overflow:hidden;}
.hero-blob{position:absolute;border-radius:50%;filter:blur(70px);z-index:0;pointer-events:none;}
.hero-blob-a{width:340px;height:340px;background:#cbbdff;opacity:.55;top:-110px;right:6%;}
.hero-blob-b{width:260px;height:260px;background:#ffcdc0;opacity:.5;bottom:-90px;left:-60px;}
.hero .wrap{position:relative;z-index:1;}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:42px;align-items:start;}
.hero-copy>*{animation:rise .7s cubic-bezier(.22,.61,.36,1) both;}
.hero-copy>*:nth-child(2){animation-delay:.07s;}
.hero-copy>*:nth-child(3){animation-delay:.14s;}
.hero-copy>*:nth-child(4){animation-delay:.21s;}
.hero-copy>*:nth-child(5){animation-delay:.28s;}
@keyframes rise{from{opacity:0;transform:translateY(18px);}to{opacity:1;transform:none;}}
.hero-tag{
  display:inline-block;
  padding:6px 16px;border-radius:999px;
  font-size:13px;font-weight:700;letter-spacing:1px;
  color:#4a2fe8;background:#efecff;border:1px solid #ded7ff;
}
.hero h1{
  margin:18px 0 16px;
  font-size:clamp(32px,4.6vw,52px);
  letter-spacing:-1.4px;
}
.hl{position:relative;z-index:0;color:var(--brand);white-space:nowrap;}
.hl::after{
  content:"";position:absolute;left:-2px;right:-2px;bottom:.06em;height:.3em;
  background:linear-gradient(90deg,#ffe27a,#ffd0c9);
  border-radius:6px;z-index:-1;
}
.hero-desc{max-width:560px;color:var(--ink-2);font-size:16px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-note{margin-top:16px;font-size:13px;color:var(--muted);}
.glance{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:24px;
  padding:24px 24px 22px;
  box-shadow:var(--shadow);
  animation:rise .8s .2s cubic-bezier(.22,.61,.36,1) both;
}
.glance-bar{height:6px;border-radius:999px;background:linear-gradient(90deg,#4a2fe8,#ff4d47,#ffc02e);margin-bottom:18px;}
.glance-title{font-size:16px;font-weight:800;letter-spacing:.5px;margin-bottom:14px;}
.glance-list{display:grid;gap:10px;}
.glance-list li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--ink-2);}
.dot{flex:0 0 auto;width:8px;height:8px;border-radius:50%;margin-top:8px;background:linear-gradient(135deg,#4a2fe8,#ff4d47);}
.glance-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);}
.glance-chips span{
  font-size:12px;font-weight:700;color:#4a2fe8;background:#f2efff;
  padding:5px 11px;border-radius:999px;
}
.stat-row{
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
  margin-top:46px;
}
.stat-row li{
  background:rgba(255,255,255,.82);
  border:1px solid var(--line);
  border-radius:16px;
  padding:18px 20px;
  transition:transform .25s ease, box-shadow .25s ease;
}
.stat-row li:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.stat-row strong{display:block;font-size:24px;letter-spacing:-.6px;color:var(--brand);line-height:1.25;}
.stat-row span{font-size:13px;color:var(--muted);}

/* ---------- 区块通用 ---------- */
.section{padding:76px 0;position:relative;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:800;letter-spacing:2px;
  color:var(--brand);
}
.eyebrow::before{
  content:"";width:24px;height:4px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
}
.section-head h2{font-size:clamp(23px,3.2vw,34px);margin:12px 0 14px;}
.lead{color:var(--ink-2);font-size:15.5px;}
.lead+.lead{margin-top:12px;}

/* ---------- 关于我们 ---------- */
.about-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.about-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;
  padding:24px 22px;
  transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.about-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:#d3caff;}
.about-card h3{font-size:16.5px;margin-bottom:10px;}
.about-card p{font-size:14.5px;color:var(--ink-2);}
.about-card .idx{
  display:inline-block;font-size:12px;font-weight:800;color:#ff4d47;
  letter-spacing:1px;margin-bottom:8px;
}

/* ---------- 服务能力 ---------- */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.svc-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;
  padding:22px 20px;
  transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.svc-card::before{
  content:"";display:block;width:28px;height:4px;border-radius:2px;
  background:linear-gradient(90deg,#4a2fe8,#ff4d47);
  margin-bottom:14px;
}
.svc-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:#d3caff;}
.svc-card h3{font-size:16px;margin-bottom:9px;}
.svc-card p{font-size:14px;color:var(--ink-2);}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.chip{
  padding:9px 16px;border-radius:999px;background:#fff;border:1px solid var(--line);
  font-size:14px;font-weight:600;color:var(--ink-2);
  transition:transform .2s ease, background-color .2s ease, color .2s ease, border-color .2s ease;
}
.chip:hover{transform:translateY(-2px);background:var(--brand);color:#fff;border-color:var(--brand);}

/* ---------- 流程步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;}
.step{
  background:#fff;border:1px solid var(--line);border-radius:18px;
  padding:22px 18px;position:relative;
  transition:transform .25s ease, box-shadow .25s ease;
}
.step:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);}
.step-num{
  display:block;font-size:26px;font-weight:800;color:var(--brand);
  letter-spacing:-1px;line-height:1;margin-bottom:12px;
}
.step h3{font-size:15.5px;margin-bottom:8px;}
.step p{font-size:13.5px;color:var(--ink-2);}

/* ---------- 行业方案 ---------- */
.sol-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.sol-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;
  padding:24px 22px;display:flex;flex-direction:column;gap:8px;
  transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.sol-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:#ffd0c9;}
.sol-card h3{font-size:16.5px;}
.sol-card p{font-size:14px;color:var(--ink-2);}
.sol-tag{
  align-self:flex-start;font-size:12px;font-weight:800;letter-spacing:.5px;
  color:#0f8f7d;background:#e5fbf6;padding:4px 10px;border-radius:999px;
}

/* ---------- 服务网络 ---------- */
.network-box{
  background:#fff;border:1px solid var(--line);border-radius:24px;
  padding:32px;display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:start;
  box-shadow:var(--shadow);
}
.network-box h3{font-size:18px;margin-bottom:12px;}
.network-box p{font-size:14.5px;color:var(--ink-2);}
.city-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
.city-list li{
  padding:8px 15px;border-radius:999px;font-size:13.5px;font-weight:600;
  background:#f4f2ff;color:#3b2bb8;border:1px solid #e2dcff;
}
.network-side{
  background:linear-gradient(160deg,#f6f3ff,#fff4f1);
  border-radius:18px;padding:24px;border:1px solid #eee8ff;
}
.network-side ul{display:grid;gap:12px;margin-top:14px;}
.network-side li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);}
.network-side li::before{
  content:"";flex:0 0 auto;width:7px;height:7px;border-radius:50%;
  margin-top:9px;background:linear-gradient(135deg,#ff4d47,#ffbd2e);
}

/* ---------- 案例中心 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:20px;
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .25s ease, box-shadow .25s ease;
}
.case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);}
.case-media{aspect-ratio:16/10;background:#efeaff;overflow:hidden;}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.case-card:hover .case-media img{transform:scale(1.05);}
.case-body{padding:20px;display:flex;flex-direction:column;gap:9px;}
.case-body h3{font-size:16px;}
.case-body p{font-size:14px;color:var(--ink-2);}
.tag{
  display:inline-block;align-self:flex-start;
  font-size:12px;font-weight:800;padding:4px 10px;border-radius:999px;
  background:#efecff;color:#4a2fe8;
}

/* ---------- 对比评测 ---------- */
.score-card{
  display:grid;grid-template-columns:.9fr 1.1fr;gap:30px;
  background:#fff;border:1px solid var(--line);border-radius:24px;
  padding:32px;margin-bottom:28px;box-shadow:var(--shadow);
}
.score-label{font-size:13px;font-weight:800;letter-spacing:1.5px;color:var(--brand);}
.score-value{font-size:52px;font-weight:800;letter-spacing:-2px;line-height:1.1;margin:8px 0 6px;color:var(--ink);}
.score-value span{font-size:18px;font-weight:700;color:var(--muted);letter-spacing:0;margin-left:6px;}
.stars{color:#ffb400;font-size:20px;letter-spacing:3px;}
.score-card p{font-size:14px;color:var(--ink-2);margin-top:10px;}
.score-points{display:grid;gap:12px;align-content:start;}
.score-points li{
  display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);
  background:#f8f6ff;border-radius:12px;padding:12px 16px;
}
.score-points li::before{
  content:"✓";flex:0 0 auto;color:#fff;font-size:12px;font-weight:800;
  width:18px;height:18px;border-radius:50%;display:grid;place-items:center;margin-top:3px;
  background:linear-gradient(135deg,#4a2fe8,#7a3bff);
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:18px;border:1px solid var(--line);background:#fff;}
.cmp-table{width:100%;min-width:780px;border-collapse:collapse;font-size:14.5px;}
.cmp-table th,.cmp-table td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top;}
.cmp-table thead th{
  background:#f3f0ff;color:#2a2456;font-size:14px;font-weight:800;
  white-space:nowrap;
}
.cmp-table tbody tr:last-child td{border-bottom:0;}
.cmp-table tbody tr:hover td{background:#fbfaff;}
.cmp-table .own{background:#f6f2ff;color:#241a6e;font-weight:700;}
.cmp-table td:first-child{color:var(--ink-2);font-weight:600;white-space:nowrap;}

/* ---------- Token 比价 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.price-card{
  background:#fff;border:1px solid var(--line);border-radius:20px;
  padding:26px 22px;display:flex;flex-direction:column;gap:12px;
  transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.price-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:#d3caff;}
.price-card.hot{border-color:#ffd0c9;background:linear-gradient(180deg,#fff8f6,#fff);}
.price-card h3{font-size:17px;}
.price-card .price-note{font-size:13px;font-weight:800;color:#ff4d47;letter-spacing:.5px;}
.price-card p{font-size:14px;color:var(--ink-2);}
.price-card ul{display:grid;gap:8px;margin-top:2px;}
.price-card li{font-size:13.5px;color:var(--ink-2);display:flex;gap:8px;}
.price-card li::before{
  content:"";flex:0 0 auto;width:6px;height:6px;border-radius:50%;margin-top:8px;
  background:#4a2fe8;
}
.price-tip{
  margin-top:22px;font-size:13.5px;color:var(--muted);
  background:rgba(255,255,255,.72);border:1px dashed var(--line);
  border-radius:14px;padding:14px 18px;
}

/* ---------- 用户评论 ---------- */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.review{
  background:#fff;border:1px solid var(--line);border-radius:20px;padding:24px;
  display:flex;flex-direction:column;gap:14px;
  transition:transform .25s ease, box-shadow .25s ease;
}
.review:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);}
.review-head{display:flex;align-items:center;gap:12px;}
.avatar{
  flex:0 0 auto;width:44px;height:44px;border-radius:50%;
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:16px;
  background:linear-gradient(135deg,#4a2fe8,#7a5bff);
}
.review:nth-child(2n) .avatar{background:linear-gradient(135deg,#ff4d47,#ff8a3d);}
.review:nth-child(3n) .avatar{background:linear-gradient(135deg,#00bfa5,#31d9c0);}
.review-name{font-size:15px;font-weight:800;}
.review-role{font-size:12.5px;color:var(--muted);}
.review-text{font-size:14px;color:var(--ink-2);}
.review-score{font-size:13px;color:#ffb400;letter-spacing:2px;}

/* ---------- 加盟代理 ---------- */
.agent-card{
  background:linear-gradient(120deg,#3a24c9,#6b31d8 52%,#ff4d47);
  border-radius:26px;padding:38px 36px;color:#fff;
  display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:center;
  box-shadow:0 34px 60px -34px rgba(58,36,201,.9);
}
.agent-card h2{font-size:clamp(22px,3vw,30px);color:#fff;margin-bottom:12px;}
.agent-card p{font-size:14.5px;color:rgba(255,255,255,.88);}
.agent-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
.agent-points span{
  font-size:13px;font-weight:700;padding:7px 14px;border-radius:999px;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);color:#fff;
}
.agent-action{display:flex;justify-content:flex-end;}
.agent-action .btn{background:#fff;color:#3a24c9;box-shadow:0 18px 30px -18px rgba(0,0,0,.6);}
.agent-action .btn:hover{transform:translateY(-2px);}

/* ---------- 行业资讯 ---------- */
.news-list{display:grid;gap:14px;}
.news-item{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:16px 20px;
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.news-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#d3caff;}
.news-title{font-size:15px;font-weight:700;color:var(--ink);}
.news-item:hover .news-title{color:var(--brand);}

/* ---------- AI 百科 ---------- */
.wiki-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.wiki-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;
  transition:transform .25s ease, box-shadow .25s ease;
}
.wiki-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.wiki-card h3{font-size:15.5px;margin-bottom:8px;color:var(--brand);}
.wiki-card p{font-size:13.5px;color:var(--ink-2);}
.help-row{
  margin-top:26px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 20px;
}
.help-row strong{font-size:14px;color:var(--ink);}
.help-row a{
  font-size:13.5px;font-weight:700;color:#3b2bb8;background:#f2efff;
  padding:7px 14px;border-radius:999px;transition:background-color .2s ease, color .2s ease;
}
.help-row a:hover{background:var(--brand);color:#fff;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:0 22px;transition:border-color .2s ease, box-shadow .2s ease;
}
.faq-item[open]{border-color:#d3caff;box-shadow:var(--shadow);}
.faq-item summary{
  list-style:none;cursor:pointer;
  padding:18px 0;font-size:15.5px;font-weight:700;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-size:22px;font-weight:400;line-height:1;
  color:var(--brand);transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-answer{padding:0 0 20px;font-size:14.5px;color:var(--ink-2);}

/* ---------- 联系与表单 ---------- */
.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:start;}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:24px;padding:30px;
  box-shadow:var(--shadow);
}
.form-card h3{font-size:18px;margin-bottom:8px;}
.form-card .form-sub{font-size:13.5px;color:var(--muted);margin-bottom:22px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field.full{grid-column:1/-1;}
.field label{font-size:13px;font-weight:700;color:var(--ink-2);}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;
  border:1px solid #ddd8f2;border-radius:12px;
  font-size:15px;color:var(--ink);background:#fbfaff;
  font-family:inherit;
  transition:border-color .2s ease, box-shadow .2s ease, background-color .2s ease;
}
.field textarea{min-height:112px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);background:#fff;
  box-shadow:0 0 0 3px rgba(74,47,232,.12);
}
.contact-card{
  background:#fff;border:1px solid var(--line);border-radius:24px;padding:26px;
  box-shadow:var(--shadow);
}
.contact-card h3{font-size:17px;margin-bottom:16px;}
.contact-list{display:grid;gap:12px;}
.contact-list li{
  display:flex;gap:12px;align-items:baseline;
  font-size:14.5px;color:var(--ink-2);
  padding-bottom:12px;border-bottom:1px dashed var(--line);
}
.contact-list li:last-child{border-bottom:0;padding-bottom:0;}
.contact-list .k{
  flex:0 0 76px;font-size:13px;font-weight:800;color:var(--muted);
}
.contact-list .v{color:var(--ink);font-weight:600;word-break:break-all;}
.qr-box{margin-top:20px;display:flex;align-items:center;gap:16px;}
.qr-box img{width:132px;border-radius:12px;border:1px solid var(--line);}
.qr-box span{font-size:13px;color:var(--muted);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#12112b;
  color:rgba(255,255,255,.72);
  padding:56px 0 26px;
  margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr;gap:40px;}
.footer-logo-line{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;}
.brand-mark{
  display:grid;place-items:center;width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,#4a2fe8,#ff4d47);color:#fff;font-size:16px;font-weight:800;
}
.site-footer p{font-size:14px;color:rgba(255,255,255,.68);margin-top:14px;max-width:420px;}
.footer-contact{display:grid;gap:8px;margin-top:18px;}
.footer-contact li{font-size:13.5px;color:rgba(255,255,255,.75);}
.footer-contact .k{color:rgba(255,255,255,.5);margin-right:8px;}
.site-footer h3{color:#fff;font-size:15px;margin-bottom:14px;}
.site-footer nav a,.site-footer .footer-links a{
  display:block;padding:6px 0;font-size:14px;color:rgba(255,255,255,.72);
  transition:color .2s ease, padding-left .2s ease;
}
.site-footer nav a:hover,.site-footer .footer-links a:hover{color:#fff;padding-left:4px;}
.footer-bottom{
  margin-top:38px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 浮动组件 ---------- */
.fab{
  position:fixed;right:22px;z-index:60;
  width:54px;height:54px;border-radius:50%;border:0;cursor:pointer;
  display:grid;place-items:center;font-size:13px;font-weight:800;
  box-shadow:0 16px 32px -14px rgba(30,22,90,.7);
  transition:transform .2s ease, opacity .2s ease;
}
.fab:hover{transform:translateY(-3px);}
.fab-kf{bottom:22px;color:#fff;background:linear-gradient(135deg,#4a2fe8,#7a5bff);}
.fab-top{
  bottom:88px;color:var(--brand);background:#fff;border:1px solid var(--line);
  opacity:0;pointer-events:none;transform:translateY(8px);
}
.fab-top.show{opacity:1;pointer-events:auto;transform:none;}
.fab-top.show:hover{transform:translateY(-3px);}
.kf-panel{
  position:fixed;right:22px;bottom:88px;width:252px;z-index:61;
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;
  box-shadow:0 30px 60px -30px rgba(30,22,90,.65);
  opacity:0;pointer-events:none;transform:translateY(10px) scale(.97);
  transition:opacity .22s ease, transform .22s ease;
}
.kf-panel.open{opacity:1;pointer-events:auto;transform:none;}
.kf-panel h4{font-size:15px;margin-bottom:12px;color:var(--ink);}
.kf-panel li{font-size:13.5px;color:var(--ink-2);padding:6px 0;border-bottom:1px dashed var(--line);}
.kf-panel li:last-of-type{border-bottom:0;}
.kf-panel .kf-link{
  display:block;margin-top:14px;text-align:center;
  padding:10px 14px;border-radius:12px;font-size:14px;font-weight:700;color:#fff;
  background:linear-gradient(120deg,#4a2fe8,#7a3bff);
}

/* ---------- 滚动渐入 ---------- */
.js .reveal{opacity:0;translate:0 22px;transition:opacity .65s ease, translate .65s cubic-bezier(.22,.61,.36,1);}
.js .reveal.in{opacity:1;translate:0 0;}
@media (prefers-reduced-motion: reduce){
  .js .reveal{opacity:1;translate:0 0;transition:none;}
  .hero-copy>*{animation:none;}
  html{scroll-behavior:auto;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .nav-links a{padding:8px 7px;font-size:13.5px;}
  .hero-grid{gap:32px;}
  .steps{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:940px){
  .nav-toggle{display:flex;}
  .nav-links{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;
    background:#fff;border:1px solid var(--line);border-radius:16px;
    padding:10px;box-shadow:var(--shadow);
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:11px 14px;font-size:15px;}
  .nav-cta{padding:8px 15px;font-size:13.5px;}
  .hero-grid{grid-template-columns:1fr;}
  .stat-row{grid-template-columns:repeat(2,1fr);}
  .about-grid,.svc-grid,.sol-grid,.case-grid,.review-grid,.wiki-grid,.price-grid{grid-template-columns:repeat(2,1fr);}
  .score-card,.network-box,.agent-card,.contact-grid{grid-template-columns:1fr;}
  .agent-action{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:680px){
  .section{padding:56px 0;}
  .hero{padding:52px 0 46px;}
  .stat-row{grid-template-columns:1fr 1fr;gap:10px;}
  .about-grid,.svc-grid,.sol-grid,.case-grid,.review-grid,.wiki-grid,.price-grid,.steps{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .form-card,.contact-card,.network-box,.score-card,.agent-card{padding:24px 20px;}
  .news-item{flex-direction:column;align-items:flex-start;gap:10px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .qr-box{flex-direction:column;align-items:flex-start;}
  .fab{right:14px;width:50px;height:50px;}
  .kf-panel{right:14px;width:calc(100% - 28px);max-width:280px;}
  .score-value{font-size:44px;}
}