*{margin:0;padding:0;box-sizing:border-box;}
:root{
  --ink:#141b2d;
  --ink-soft:#485070;
  --brand:#ff3d2e;
  --brand-deep:#e01f10;
  --violet:#5b2bff;
  --cyan:#00c2c7;
  --lime:#c9f227;
  --amber:#ffb005;
  --paper:#fdf8f3;
  --paper-2:#ffffff;
  --line:#eaded2;
  --radius:18px;
}
html{scroll-behavior:smooth;}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,sans-serif;
  background:
    radial-gradient(1200px 620px at 88% -6%,rgba(91,43,255,.14),transparent 62%),
    radial-gradient(900px 520px at -8% 8%,rgba(255,61,46,.14),transparent 58%),
    radial-gradient(1000px 700px at 50% 102%,rgba(0,194,199,.12),transparent 60%),
    var(--paper);
  color:var(--ink);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 22px;
}
section{scroll-margin-top:88px;}
h1,h2,h3,h4{line-height:1.28;letter-spacing:-.01em;}
h2{font-size:clamp(24px,3vw,34px);font-weight:800;}
h3{font-size:19px;font-weight:700;}
p{color:var(--ink-soft);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  backdrop-filter:blur(14px);
  background:rgba(253,248,243,.86);
  border-bottom:1px solid rgba(234,222,210,.9);
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  gap:18px;min-height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand .ai-page-logo{width:40px;height:40px;object-fit:contain;border-radius:10px;background:#fff;padding:4px;box-shadow:0 4px 14px rgba(20,27,45,.12);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:17px;letter-spacing:.02em;}
.brand-text span{font-size:11px;color:var(--ink-soft);letter-spacing:.14em;}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap;}
.nav-links a{
  display:inline-block;
  padding:8px 11px;
  font-size:14px;font-weight:600;color:var(--ink-soft);
  border-radius:10px;
  transition:color .22s,background .22s,transform .22s;
}
.nav-links a:hover{color:var(--brand);background:rgba(255,61,46,.09);transform:translateY(-1px);}
.nav-cta{
  display:flex;align-items:center;gap:10px;flex-shrink:0;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  border:none;cursor:pointer;font-family:inherit;
  font-size:14px;font-weight:700;
  padding:11px 20px;border-radius:12px;
  transition:transform .2s,box-shadow .25s,background .25s,color .25s;
}
.btn-primary{background:linear-gradient(120deg,var(--brand),#ff7a1f);color:#fff;box-shadow:0 8px 20px rgba(255,61,46,.28);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,61,46,.36);}
.btn-ghost{background:#fff;color:var(--ink);border:1.5px solid #e6d8ca;}
.btn-ghost:hover{border-color:var(--violet);color:var(--violet);transform:translateY(-2px);}
.btn-dark{background:var(--ink);color:#fff;}
.btn-dark:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(20,27,45,.24);}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:11px;
  border:1.5px solid #e6d8ca;background:#fff;cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:.25s;}
.menu-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle.open span:nth-child(2){opacity:0;}
.menu-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:64px 0 76px;}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(20,27,45,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(20,27,45,.055) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 30%,#000 0%,transparent 78%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:46px;align-items:start;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(91,43,255,.1);color:var(--violet);
  font-size:13px;font-weight:700;letter-spacing:.04em;
  padding:7px 14px;border-radius:999px;margin-bottom:20px;
  border:1px solid rgba(91,43,255,.18);
}
.eyebrow i{width:7px;height:7px;border-radius:50%;background:var(--brand);display:block;animation:pulse 1.9s infinite;}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.35;transform:scale(.7);}}
.hero h1{font-size:clamp(29px,4.2vw,46px);font-weight:900;letter-spacing:-.02em;}
.hero h1 em{
  font-style:normal;position:relative;display:inline-block;color:var(--brand-deep);
}
.hero h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:10px;
  background:linear-gradient(90deg,var(--lime),rgba(201,242,39,.15));
  z-index:-1;border-radius:4px;
}
.hero-desc{margin-top:20px;font-size:16px;max-width:560px;color:var(--ink-soft);}
.hero-actions{display:flex;flex-wrap:wrap;gap:13px;margin-top:28px;}
.hero-actions .btn{padding:14px 26px;font-size:15px;border-radius:14px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:30px;}
.hero-tags span{
  font-size:13px;font-weight:600;color:var(--ink-soft);
  background:rgba(255,255,255,.86);border:1px solid var(--line);
  padding:6px 13px;border-radius:999px;
  transition:transform .22s,color .22s,border-color .22s,box-shadow .22s;
}
.hero-tags span:hover{transform:translateY(-2px);color:var(--brand);border-color:rgba(255,61,46,.4);box-shadow:0 8px 18px rgba(255,61,46,.12);}

/* Hero 右侧指标面板 */
.hero-panel{
  background:linear-gradient(160deg,#1a2138,#2c1f52 58%,#43216b);
  border-radius:22px;padding:26px;color:#fff;
  box-shadow:0 24px 60px rgba(28,20,64,.34);
  position:relative;overflow:hidden;animation:floatIn .8s ease both;
}
.hero-panel::after{
  content:"";position:absolute;width:220px;height:220px;border-radius:50%;
  right:-70px;top:-70px;background:radial-gradient(circle,rgba(255,61,46,.55),transparent 68%);
  filter:blur(6px);pointer-events:none;
}
.hero-panel h3{color:#fff;font-size:16px;letter-spacing:.03em;position:relative;z-index:2;}
.hero-panel .panel-note{font-size:12.5px;color:rgba(255,255,255,.68);margin-top:6px;position:relative;z-index:2;}
.metric-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px;position:relative;z-index:2;}
.metric{
  background:rgba(255,255,255,.075);border:1px solid rgba(255,255,255,.14);
  border-radius:14px;padding:14px 15px;
  transition:transform .25s,background .25s,border-color .25s;
}
.metric:hover{transform:translateY(-3px);background:rgba(255,255,255,.13);border-color:rgba(201,242,39,.5);}
.metric b{display:block;font-size:22px;font-weight:900;color:var(--lime);line-height:1.25;letter-spacing:-.02em;}
.metric small{display:block;font-size:12.5px;color:rgba(255,255,255,.72);margin-top:4px;}
.panel-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;position:relative;z-index:2;}
.panel-badges span{
  font-size:12px;color:#fff;padding:5px 11px;border-radius:8px;
  background:rgba(255,61,46,.24);border:1px solid rgba(255,61,46,.5);
}
@keyframes floatIn{from{opacity:0;transform:translateY(22px);}to{opacity:1;transform:translateY(0);}}

/* ---------- 通用区块 ---------- */
.section{padding:66px 0;}
.section-head{max-width:760px;margin-bottom:38px;}
.section-tag{
  display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:.16em;
  color:var(--violet);text-transform:uppercase;margin-bottom:12px;
}
.section-tag::before{content:"";display:inline-block;width:22px;height:3px;background:var(--brand);border-radius:2px;vertical-align:middle;margin-right:9px;}
.section-head h2{margin-bottom:12px;}
.section-head p{font-size:15.5px;}

/* ---------- 平台介绍 ---------- */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:start;}
.about-copy p+p{margin-top:14px;}
.about-list{display:grid;gap:12px;margin-top:22px;}
.about-list li{
  display:flex;gap:12px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:14px 16px;transition:transform .22s,box-shadow .25s,border-color .25s;
}
.about-list li:hover{transform:translateX(4px);box-shadow:0 12px 26px rgba(20,27,45,.08);border-color:rgba(91,43,255,.35);}
.about-list .dot{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;
  background:linear-gradient(135deg,var(--violet),var(--cyan));
  color:#fff;font-size:13px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
}
.about-list b{display:block;font-size:14.5px;color:var(--ink);}
.about-list small{font-size:13px;color:var(--ink-soft);line-height:1.6;}
.about-visual{
  background:linear-gradient(150deg,#fff,#fff6ef);
  border:1px solid var(--line);border-radius:22px;padding:24px;
  box-shadow:0 18px 44px rgba(20,27,45,.07);
}
.about-visual h3{margin-bottom:6px;}
.about-visual > p{font-size:13.5px;margin-bottom:18px;}
.model-cloud{display:flex;flex-wrap:wrap;gap:8px;}
.model-cloud span{
  font-size:12.5px;font-weight:600;color:var(--ink);
  background:#fff;border:1px solid #ecdfd3;border-radius:9px;
  padding:6px 11px;transition:.22s;
}
.model-cloud span:hover{background:var(--ink);color:#fff;border-color:var(--ink);transform:translateY(-2px);}
.visual-note{
  margin-top:18px;padding-top:16px;border-top:1px dashed #e3d4c5;
  font-size:13px;color:var(--ink-soft);
}

/* ---------- 服务能力卡片 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.svc-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;position:relative;overflow:hidden;
  transition:transform .26s,box-shadow .26s,border-color .26s;
}
.svc-card::before{
  content:"";position:absolute;left:0;top:0;height:4px;width:0;
  background:linear-gradient(90deg,var(--brand),var(--amber));
  transition:width .34s ease;
}
.svc-card:hover{transform:translateY(-6px);box-shadow:0 20px 40px rgba(20,27,45,.11);border-color:#e2d0bd;}
.svc-card:hover::before{width:100%;}
.svc-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:900;color:#fff;margin-bottom:15px;letter-spacing:.02em;
}
.i1{background:linear-gradient(135deg,#ff3d2e,#ff9d2e);}
.i2{background:linear-gradient(135deg,#5b2bff,#8f5bff);}
.i3{background:linear-gradient(135deg,#00c2c7,#00a08c);}
.i4{background:linear-gradient(135deg,#ffb005,#ff7a1f);}
.i5{background:linear-gradient(135deg,#1a2138,#485070);}
.i6{background:linear-gradient(135deg,#e01f10,#ff6f61);}
.svc-card h3{margin-bottom:9px;font-size:16.5px;}
.svc-card p{font-size:13.8px;line-height:1.72;}
.svc-card .mini-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px;}
.svc-card .mini-tags span{
  font-size:11.5px;font-weight:600;color:var(--violet);
  background:rgba(91,43,255,.08);border-radius:7px;padding:4px 9px;
}

/* ---------- 一站式制作 & 场景 ---------- */
.scene-wrap{
  background:linear-gradient(165deg,#141b2d,#241a45 60%,#3b1d5c);
  border-radius:26px;padding:42px 34px;color:#fff;
  position:relative;overflow:hidden;
}
.scene-wrap::before{
  content:"";position:absolute;width:340px;height:340px;border-radius:50%;
  top:-140px;right:-90px;background:radial-gradient(circle,rgba(201,242,39,.28),transparent 66%);
  filter:blur(4px);
}
.scene-wrap .section-head{max-width:640px;position:relative;z-index:2;margin-bottom:30px;}
.scene-wrap .section-tag{color:var(--lime);}
.scene-wrap .section-tag::before{background:var(--lime);}
.scene-wrap h2{color:#fff;}
.scene-wrap .section-head p{color:rgba(255,255,255,.74);}
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;position:relative;z-index:2;}
.scene-item{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
  border-radius:14px;padding:17px 16px;
  transition:transform .24s,background .24s,border-color .24s;
}
.scene-item:hover{transform:translateY(-5px);background:rgba(255,255,255,.14);border-color:rgba(201,242,39,.55);}
.scene-item b{display:block;font-size:14.5px;color:#fff;margin-bottom:6px;}
.scene-item small{display:block;font-size:12.5px;color:rgba(255,255,255,.66);line-height:1.62;}

/* ---------- 行业方案 ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.plan-card{
  background:#fff;border:1.5px solid var(--line);border-radius:var(--radius);
  padding:24px;display:flex;flex-direction:column;
  transition:transform .26s,box-shadow .26s,border-color .26s;
}
.plan-card:hover{transform:translateY(-6px);border-color:var(--violet);box-shadow:0 22px 44px rgba(91,43,255,.14);}
.plan-card .plan-label{
  align-self:flex-start;font-size:11.5px;font-weight:800;letter-spacing:.1em;
  padding:4px 10px;border-radius:7px;margin-bottom:14px;
  background:rgba(255,61,46,.1);color:var(--brand-deep);
}
.plan-card:nth-child(2) .plan-label{background:rgba(91,43,255,.1);color:var(--violet);}
.plan-card:nth-child(3) .plan-label{background:rgba(0,194,199,.12);color:#00807a;}
.plan-card h3{margin-bottom:10px;}
.plan-card p{font-size:13.8px;flex:1;}
.plan-card .plan-link{
  margin-top:16px;font-size:13.5px;font-weight:700;color:var(--brand-deep);
  display:inline-flex;align-items:center;gap:5px;
}
.plan-card .plan-link::after{content:"→";transition:transform .22s;}
.plan-card:hover .plan-link::after{transform:translateX(4px);}

/* ---------- 服务网络 + 流程 ---------- */
.net-flow{display:grid;grid-template-columns:.9fr 1.1fr;gap:32px;align-items:start;}
.net-box{
  background:linear-gradient(150deg,#fff,#fff4ec);
  border:1px solid var(--line);border-radius:20px;padding:26px;
}
.net-box h3{margin-bottom:8px;}
.net-box > p{font-size:13.6px;margin-bottom:18px;}
.net-list{display:grid;gap:10px;}
.net-list li{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 14px;background:#fff;border:1px solid #f0e4d7;border-radius:11px;
  font-size:13.6px;font-weight:600;
}
.net-list li span:last-child{font-size:12px;font-weight:700;color:var(--brand-deep);}
.flow-list{display:grid;gap:0;counter-reset:flow;}
.flow-item{
  display:grid;grid-template-columns:44px 1fr;gap:16px;
  padding-bottom:22px;position:relative;
}
.flow-item:last-child{padding-bottom:0;}
.flow-item::before{
  content:"";position:absolute;left:21px;top:44px;bottom:0;width:2px;
  background:linear-gradient(180deg,#e8d8c8,transparent);
}
.flow-item:last-child::before{display:none;}
.flow-num{
  width:44px;height:44px;border-radius:13px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  font-weight:900;font-size:15px;color:#fff;
  background:linear-gradient(135deg,var(--violet),var(--brand));
  box-shadow:0 8px 18px rgba(91,43,255,.24);
}
.flow-item h4{font-size:15px;font-weight:800;margin-bottom:4px;}
.flow-item p{font-size:13.5px;line-height:1.68;}

/* ---------- 案例 ---------- */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;transition:transform .26s,box-shadow .26s;
}
.case-card:hover{transform:translateY(-6px);box-shadow:0 20px 42px rgba(20,27,45,.12);}
.case-img{aspect-ratio:16/10;overflow:hidden;background:#f3ebe2;display:flex;align-items:center;justify-content:center;}
.case-img img{width:100%;height:100%;object-fit:contain;transition:transform .4s;}
.case-card:hover .case-img img{transform:scale(1.04);}
.case-body{padding:18px 20px 20px;}
.case-body h3{font-size:15.5px;margin-bottom:7px;}
.case-body p{font-size:13.3px;line-height:1.68;}
.case-meta{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px;}
.case-meta span{font-size:11.5px;font-weight:600;color:var(--ink-soft);background:#fbf3ea;border-radius:6px;padding:3px 9px;}

/* ---------- 对比评测 ---------- */
.compare-wrap{
  background:#fff;border:1px solid var(--line);border-radius:24px;
  padding:34px;box-shadow:0 18px 46px rgba(20,27,45,.07);
}
.rating-head{display:flex;flex-wrap:wrap;align-items:center;gap:22px;justify-content:space-between;margin-bottom:26px;}
.rating-main{display:flex;align-items:center;gap:16px;}
.rating-score{
  width:96px;height:96px;border-radius:22px;flex-shrink:0;
  background:linear-gradient(140deg,var(--brand),#ff8a1f);
  color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;
  box-shadow:0 14px 30px rgba(255,61,46,.3);
}
.rating-score b{font-size:30px;font-weight:900;line-height:1;}
.rating-score small{font-size:11px;margin-top:5px;opacity:.9;}
.rating-main h3{font-size:19px;margin-bottom:5px;}
.stars{display:flex;gap:4px;color:#ffb005;font-size:17px;letter-spacing:2px;}
.rating-note{font-size:13px;color:var(--ink-soft);max-width:400px;}
.table-scroll{overflow-x:auto;border-radius:14px;border:1px solid #efe2d4;}
table{width:100%;border-collapse:collapse;min-width:640px;font-size:13.8px;}
thead th{
  background:#fdf3e9;color:var(--ink);font-weight:800;text-align:left;
  padding:14px 16px;border-bottom:1px solid #efe2d4;white-space:nowrap;
}
tbody td{padding:13px 16px;border-bottom:1px solid #f4ece3;color:var(--ink-soft);vertical-align:top;}
tbody tr:nth-child(even){background:#fffdfa;}
tbody tr:hover{background:#fff6ee;}
tbody td:first-child{font-weight:700;color:var(--ink);}
.mark-good{color:#0f9a6a;font-weight:700;}
.mark-mid{color:#b98200;font-weight:600;}

/* ---------- 需求表单 ---------- */
.form-wrap{
  display:grid;grid-template-columns:1fr 1.1fr;gap:0;
  background:#fff;border:1px solid var(--line);border-radius:24px;
  overflow:hidden;box-shadow:0 18px 46px rgba(20,27,45,.08);
}
.form-aside{
  background:linear-gradient(160deg,#1a2138,#33205c);
  color:#fff;padding:36px 32px;display:flex;flex-direction:column;justify-content:center;
}
.form-aside h3{color:#fff;font-size:20px;margin-bottom:10px;}
.form-aside p{color:rgba(255,255,255,.72);font-size:13.8px;}
.aside-contacts{display:grid;gap:11px;margin-top:24px;}
.aside-contacts li{
  display:flex;gap:11px;align-items:flex-start;
  font-size:13.5px;color:rgba(255,255,255,.86);
}
.aside-contacts .ico{
  width:30px;height:30px;border-radius:9px;flex-shrink:0;
  background:rgba(255,255,255,.12);display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:800;color:var(--lime);
}
.form-body{padding:34px 32px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:700;color:var(--ink);margin-bottom:7px;}
.field input,.field select,.field textarea{
  width:100%;font-family:inherit;font-size:14px;color:var(--ink);
  background:#fdfaf6;border:1.5px solid #ecdfd2;border-radius:11px;
  padding:11px 14px;transition:border-color .2s,box-shadow .2s,background .2s;
}
.field textarea{resize:vertical;min-height:96px;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--violet);background:#fff;
  box-shadow:0 0 0 3px rgba(91,43,255,.12);
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.form-body .btn{width:100%;padding:13px;font-size:15px;border-radius:12px;}
.form-tip{font-size:12px;color:#8a8fa3;margin-top:12px;text-align:center;}

/* ---------- 用户评论 ---------- */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.review-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;display:flex;flex-direction:column;
  transition:transform .26s,box-shadow .26s,border-color .26s;
}
.review-card:hover{transform:translateY(-5px);box-shadow:0 18px 38px rgba(20,27,45,.1);border-color:#e3d1be;}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.avatar{
  width:42px;height:42px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:900;color:#fff;
}
.a1{background:linear-gradient(135deg,#ff3d2e,#ff9d2e);}
.a2{background:linear-gradient(135deg,#5b2bff,#9e6bff);}
.a3{background:linear-gradient(135deg,#00c2c7,#00a08c);}
.a4{background:linear-gradient(135deg,#ffb005,#ff7a1f);}
.a5{background:linear-gradient(135deg,#1a2138,#485070);}
.a6{background:linear-gradient(135deg,#e01f10,#ff7360);}
.review-top b{display:block;font-size:14px;}
.review-top small{display:block;font-size:12px;color:var(--ink-soft);}
.review-card p{font-size:13.6px;line-height:1.75;flex:1;}
.review-stars{color:#ffb005;font-size:13px;letter-spacing:2px;margin-top:14px;}

/* ---------- Token 比价 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:22px;}
.price-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;position:relative;overflow:hidden;
  transition:transform .26s,box-shadow .26s,border-color .26s;
}
.price-card:hover{transform:translateY(-6px);border-color:var(--amber);box-shadow:0 20px 42px rgba(255,176,5,.16);}
.price-card.hot{border-color:var(--brand);}
.price-card.hot::after{
  content:"热门";position:absolute;top:14px;right:-30px;transform:rotate(45deg);
  background:var(--brand);color:#fff;font-size:11px;font-weight:800;
  padding:3px 36px;letter-spacing:.08em;
}
.price-card h3{font-size:16px;margin-bottom:6px;}
.price-card .price-num{font-size:26px;font-weight:900;color:var(--brand-deep);letter-spacing:-.02em;line-height:1.2;margin:10px 0 4px;}
.price-card .price-num small{font-size:12.5px;font-weight:600;color:var(--ink-soft);}
.price-card ul{display:grid;gap:8px;margin-top:14px;}
.price-card li{font-size:13.3px;color:var(--ink-soft);display:flex;gap:8px;align-items:flex-start;}
.price-card li::before{content:"✓";color:#0f9a6a;font-weight:900;flex-shrink:0;}
.price-note{
  font-size:13px;color:var(--ink-soft);background:#fff;border:1px dashed #e6d4c2;
  border-radius:12px;padding:14px 18px;text-align:center;
}

/* ---------- 文章 + 标签云 ---------- */
.article-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:start;}
.article-list{display:grid;gap:12px;}
.article-item{
  display:flex;align-items:center;gap:16px;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:16px 18px;transition:transform .22s,box-shadow .24s,border-color .24s;
}
.article-item:hover{transform:translateX(4px);box-shadow:0 12px 28px rgba(20,27,45,.09);border-color:rgba(91,43,255,.35);}
.article-num{
  font-size:13px;font-weight:900;color:#fff;flex-shrink:0;
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--violet),var(--cyan));
  display:flex;align-items:center;justify-content:center;
}
.article-item h4{font-size:14.5px;font-weight:700;margin-bottom:3px;}
.article-item small{font-size:12.5px;color:var(--ink-soft);}
.tag-cloud{
  background:linear-gradient(160deg,#fff,#fdf4ea);
  border:1px solid var(--line);border-radius:18px;padding:22px;
}
.tag-cloud h3{font-size:15.5px;margin-bottom:6px;}
.tag-cloud > p{font-size:13px;margin-bottom:16px;}
.tag-cloud .tags{display:flex;flex-wrap:wrap;gap:8px;}
.tag-cloud .tags a{
  font-size:12.5px;font-weight:600;color:var(--ink-soft);
  background:#fff;border:1px solid #ecdfd2;border-radius:8px;padding:5px 11px;
  transition:.22s;
}
.tag-cloud .tags a:hover{background:var(--violet);color:#fff;border-color:var(--violet);transform:translateY(-2px);}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:11px;max-width:900px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;
  transition:border-color .24s,box-shadow .24s;
}
.faq-item.open{border-color:rgba(255,61,46,.45);box-shadow:0 12px 28px rgba(255,61,46,.1);}
.faq-q{
  width:100%;text-align:left;font-family:inherit;cursor:pointer;
  background:none;border:none;padding:16px 20px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  font-size:14.5px;font-weight:700;color:var(--ink);
  transition:color .2s;
}
.faq-q:hover{color:var(--brand-deep);}
.faq-q .plus{
  flex-shrink:0;width:24px;height:24px;border-radius:7px;
  background:rgba(255,61,46,.1);color:var(--brand-deep);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;transition:transform .28s,background .24s;
}
.faq-item.open .plus{transform:rotate(45deg);background:var(--brand);color:#fff;}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .32s ease;
}
.faq-a p{padding:0 20px 18px;font-size:13.6px;line-height:1.78;}

/* ---------- 联系 / 加盟 ---------- */
.join-wrap{
  background:linear-gradient(150deg,#1a2138,#3a1f5e 62%,#5a1f3f);
  border-radius:26px;padding:42px 36px;color:#fff;
  display:grid;grid-template-columns:1.1fr .9fr;gap:34px;align-items:center;
  position:relative;overflow:hidden;
}
.join-wrap::before{
  content:"";position:absolute;width:300px;height:300px;border-radius:50%;
  left:-100px;bottom:-130px;background:radial-gradient(circle,rgba(0,194,199,.3),transparent 68%);
  filter:blur(4px);
}
.join-copy{position:relative;z-index:2;}
.join-copy h2{color:#fff;margin-bottom:12px;}
.join-copy p{color:rgba(255,255,255,.76);font-size:14px;}
.join-points{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px;}
.join-points span{
  font-size:12.5px;color:#fff;padding:5px 12px;border-radius:8px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
}
.join-side{
  position:relative;z-index:2;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);border-radius:18px;padding:24px;
  text-align:center;
}
.join-side h3{color:#fff;font-size:15.5px;margin-bottom:6px;}
.join-side p{color:rgba(255,255,255,.68);font-size:12.5px;margin-bottom:14px;}
.join-side img{width:150px;margin:0 auto;border-radius:10px;background:#fff;padding:6px;}
.join-side .join-btns{display:flex;gap:10px;margin-top:16px;}
.join-side .btn{flex:1;padding:10px;font-size:13.5px;border-radius:10px;}

/* ---------- Footer ---------- */
.site-footer{
  background:#141b2d;color:#c9cede;padding:44px 0 0;margin-top:58px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;padding-bottom:34px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand img{width:38px;height:38px;border-radius:9px;background:#fff;padding:4px;object-fit:contain;}
.footer-brand strong{color:#fff;font-size:16px;}
.footer-brand span{display:block;font-size:11px;color:#8f97ad;letter-spacing:.12em;}
.footer-col h4{color:#fff;font-size:14px;margin-bottom:14px;font-weight:800;}
.footer-col p,.footer-col li{font-size:13px;color:#a9b0c4;line-height:1.9;}
.footer-col a{color:#a9b0c4;transition:color .2s;}
.footer-col a:hover{color:var(--lime);}
.footer-links{display:grid;gap:8px;}
.footer-links a{font-size:13px;}
.footer-contact{display:grid;gap:8px;font-size:13px;color:#a9b0c4;}
.footer-contact b{color:#e7ebf5;font-weight:700;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:16px 0;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:12.5px;color:#8f97ad;
}
.footer-bottom .ai-page-home-link{color:#c9cede;}
.footer-bottom .ai-page-home-link:hover{color:var(--lime);}
.footer-friend{display:flex;flex-wrap:wrap;gap:8px 16px;padding-bottom:18px;}
.footer-friend a{font-size:12.5px;color:#8f97ad;transition:color .2s;}
.footer-friend a:hover{color:var(--lime);}

/* ---------- 浮动客服 & 返回顶部 ---------- */
.float-dock{
  position:fixed;right:18px;bottom:26px;z-index:90;
  display:flex;flex-direction:column;gap:10px;
}
.dock-btn{
  width:50px;height:50px;border-radius:15px;border:none;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:800;color:#fff;font-family:inherit;
  background:linear-gradient(140deg,var(--violet),var(--brand));
  box-shadow:0 10px 26px rgba(91,43,255,.34);
  transition:transform .22s,box-shadow .24s;
  text-align:center;line-height:1.2;
}
.dock-btn:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(91,43,255,.44);}
.dock-btn.dock-top{background:#fff;color:var(--ink);border:1.5px solid #e6d8ca;box-shadow:0 10px 22px rgba(20,27,45,.12);}
.dock-chat{
  position:fixed;right:78px;bottom:26px;z-index:91;
  width:230px;background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:18px;box-shadow:0 20px 46px rgba(20,27,45,.2);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .26s,transform .26s,visibility .26s;text-align:center;
}
.dock-chat.show{opacity:1;visibility:visible;transform:translateY(0);}
.dock-chat img{width:160px;margin:0 auto 10px;border-radius:8px;}
.dock-chat b{display:block;font-size:13.5px;color:var(--ink);}
.dock-chat small{display:block;font-size:12px;color:var(--ink-soft);margin-top:5px;line-height:1.6;}

/* ---------- 滚动渐入 ---------- */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease;}
.reveal.in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:34px;}
  .about-grid,.net-flow,.form-wrap,.article-layout,.join-wrap{grid-template-columns:1fr;}
  .card-grid,.plan-grid,.case-grid,.review-grid,.price-grid{grid-template-columns:repeat(2,1fr);}
  .scene-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:860px){
  .nav-links{
    position:absolute;left:0;right:0;top:100%;
    background:#fdf8f3;border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:0;
    padding:8px 16px 16px;display:none;
    box-shadow:0 18px 30px rgba(20,27,45,.1);
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:11px 10px;border-radius:9px;font-size:14.5px;border-bottom:1px solid rgba(234,222,210,.7);}
  .nav-links a:last-child{border-bottom:none;}
  .nav-cta .btn-ghost{display:none;}
  .menu-toggle{display:flex;}
  .nav-wrap{position:relative;flex-wrap:nowrap;}
}
@media (max-width:640px){
  .section{padding:50px 0;}
  .hero{padding:44px 0 54px;}
  .card-grid,.plan-grid,.case-grid,.review-grid,.price-grid,.scene-grid,.footer-grid{grid-template-columns:1fr;}
  .form-body,.form-aside{padding:26px 22px;}
  .compare-wrap{padding:24px 18px;}
  .scene-wrap,.join-wrap{padding:30px 22px;}
  .field-row{grid-template-columns:1fr;}
  .float-dock{right:12px;bottom:16px;}
  .dock-chat{right:72px;bottom:16px;width:200px;}
  .hero-actions .btn{flex:1;min-width:150px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
}