:root{
  --ink:#101223;
  --ink-soft:#3a3f5c;
  --muted:#6b7091;
  --blue:#1f5eff;
  --blue-deep:#0d2bd1;
  --pink:#ff2e7e;
  --orange:#ff7a00;
  --cyan:#00d2c6;
  --yellow:#ffd400;
  --purple:#7a3cff;
  --bg:#f5f6fb;
  --card:#ffffff;
  --line:#e6e8f3;
  --radius:18px;
  --shadow:0 10px 30px rgba(24,32,90,.08);
  --shadow-lg:0 22px 60px rgba(24,32,90,.16);
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;height:auto;}
h1,h2,h3,h4{line-height:1.3;letter-spacing:.2px;}
.container{width:min(1200px,92%);margin:0 auto;}
section{padding:76px 0;position:relative;}
.sec-head{text-align:center;max-width:820px;margin:0 auto 46px;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;
  color:var(--blue);background:rgba(31,94,255,.08);
  padding:6px 16px;border-radius:999px;margin-bottom:16px;
}
.sec-head h2{font-size:clamp(24px,3.2vw,38px);font-weight:800;}
.sec-head p{color:var(--muted);margin-top:14px;font-size:15.5px;}
.grad-text{
  background:linear-gradient(95deg,var(--blue),var(--pink) 60%,var(--orange));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 30px;border-radius:999px;font-weight:700;font-size:15px;
  transition:transform .25s,box-shadow .25s,filter .25s;border:0;cursor:pointer;
}
.btn-primary{
  color:#fff;background:linear-gradient(95deg,var(--blue),var(--pink));
  box-shadow:0 12px 26px rgba(31,94,255,.32);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 18px 36px rgba(255,46,126,.34);}
.btn-ghost{
  color:var(--ink);background:#fff;border:1.5px solid var(--line);
}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-3px);}
.btn-yellow{background:var(--yellow);color:#221800;box-shadow:0 12px 26px rgba(255,212,0,.35);}
.btn-yellow:hover{transform:translateY(-3px) scale(1.02);}

/* ================= 导航 ================= */
header.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(255,255,255,.92);backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .3s;
}
header.site-header.scrolled{box-shadow:0 6px 24px rgba(24,32,90,.09);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.ai-page-logo{height:38px;width:auto;max-width:100%;}
.brand-name{font-size:19px;font-weight:800;letter-spacing:.5px;}
.brand-name em{font-style:normal;color:var(--blue);}
.nav-links{display:flex;align-items:center;gap:0;}
.nav-links a{
  padding:9px 12px;font-size:14.5px;font-weight:600;color:var(--ink-soft);
  border-radius:8px;transition:color .2s,background .2s;white-space:nowrap;
}
.nav-links a:hover{color:var(--blue);background:rgba(31,94,255,.07);}
.nav-cta{display:flex;align-items:center;gap:10px;}
.nav-cta .btn{padding:10px 22px;font-size:14px;}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px;}
.hamburger span{width:24px;height:2.5px;background:var(--ink);border-radius:2px;transition:.3s;}
.hamburger.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg);}
.hamburger.open span:nth-child(2){opacity:0;}
.hamburger.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg);}

/* ================= HERO ================= */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(circle at 12% 20%,rgba(31,94,255,.16),transparent 45%),
    radial-gradient(circle at 88% 12%,rgba(255,46,126,.15),transparent 42%),
    radial-gradient(circle at 70% 90%,rgba(255,122,0,.14),transparent 46%),
    linear-gradient(160deg,#ffffff 0%,#f3f5ff 55%,#fff2f7 100%);
  padding:88px 0 84px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(31,94,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(31,94,255,.055) 1px,transparent 1px);
  background-size:52px 52px;mask-image:radial-gradient(circle at 50% 40%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 40%,#000 30%,transparent 78%);
  pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:center;}
.hero-pill{
  display:inline-flex;align-items:center;gap:10px;background:#fff;
  border:1px solid var(--line);padding:7px 16px;border-radius:999px;
  font-size:13.5px;font-weight:600;color:var(--ink-soft);box-shadow:var(--shadow);
}
.hero-pill .dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(0,210,198,.18);animation:pulse 2s infinite;}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.hero h1{
  font-size:clamp(30px,4.6vw,54px);font-weight:900;margin:22px 0 20px;letter-spacing:.5px;
}
.hero h1 .hl{
  background:linear-gradient(95deg,var(--blue),var(--pink) 55%,var(--orange));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:16.5px;color:var(--ink-soft);max-width:560px;margin-bottom:14px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin:18px 0 30px;}
.hero-tags span{
  font-size:13px;font-weight:600;color:var(--blue-deep);background:#fff;
  border:1px solid rgba(31,94,255,.18);padding:6px 14px;border-radius:999px;
  transition:.25s;
}
.hero-tags span:hover{background:var(--blue);color:#fff;transform:translateY(-2px);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.hero-note{margin-top:22px;font-size:13.5px;color:var(--muted);display:flex;flex-wrap:wrap;gap:20px;}
.hero-note b{color:var(--ink);font-weight:800;}
/* hero visual (no images, css only) */
.hero-visual{position:relative;height:430px;}
.orb{
  position:absolute;border-radius:50%;filter:blur(2px);opacity:.9;
  animation:float 7s ease-in-out infinite;
}
.orb.a{width:130px;height:130px;background:linear-gradient(135deg,var(--blue),var(--cyan));top:0;right:40px;box-shadow:0 20px 50px rgba(31,94,255,.4);}
.orb.b{width:90px;height:90px;background:linear-gradient(135deg,var(--pink),var(--orange));bottom:24px;left:10px;animation-delay:1.2s;box-shadow:0 18px 40px rgba(255,46,126,.36);}
.orb.c{width:56px;height:56px;background:linear-gradient(135deg,var(--purple),var(--blue));top:150px;left:70px;animation-delay:.6s;}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-18px)}}
.hero-card{
  position:absolute;background:#fff;border-radius:18px;box-shadow:var(--shadow-lg);
  padding:18px 22px;border:1px solid var(--line);
}
.hero-card.c1{top:48px;left:0;width:230px;animation:float 8s ease-in-out infinite;}
.hero-card.c2{top:190px;right:0;width:250px;animation:float 8s ease-in-out .8s infinite;}
.hero-card.c3{bottom:10px;left:60px;width:210px;animation:float 8s ease-in-out 1.5s infinite;}
.hero-card .k{font-size:12.5px;color:var(--muted);font-weight:600;}
.hero-card .v{font-size:26px;font-weight:900;margin-top:2px;}
.hero-card .v.blue{color:var(--blue);}
.hero-card .v.pink{color:var(--pink);}
.hero-card .v.orange{color:var(--orange);}
.hero-card .bar{height:6px;border-radius:6px;background:#eef1fb;margin-top:10px;overflow:hidden;}
.hero-card .bar i{display:block;height:100%;border-radius:6px;background:linear-gradient(90deg,var(--blue),var(--cyan));}

/* ================= 数据指标 ================= */
.stats{background:linear-gradient(120deg,var(--ink) 0%,#1b2050 60%,#2c1660 100%);color:#fff;padding:64px 0;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;}
.stat-card{
  background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius);padding:28px 24px;transition:.3s;
}
.stat-card:hover{transform:translateY(-6px);background:rgba(255,255,255,.1);border-color:rgba(0,210,198,.5);}
.stat-card .num{font-size:clamp(28px,3.4vw,40px);font-weight:900;background:linear-gradient(95deg,var(--cyan),var(--yellow));-webkit-background-clip:text;background-clip:text;color:transparent;}
.stat-card .lab{margin-top:6px;font-size:14.5px;color:rgba(255,255,255,.78);}

/* ================= 关于我们 / 平台介绍 ================= */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;}
.about-text h2{font-size:clamp(24px,3.2vw,36px);font-weight:800;margin-bottom:18px;}
.about-text p{color:var(--ink-soft);margin-bottom:14px;font-size:15.5px;}
.about-feats{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:26px;}
.about-feat{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px;transition:.28s;display:flex;gap:12px;align-items:flex-start;}
.about-feat:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:rgba(31,94,255,.35);}
.about-feat .ico{width:34px;height:34px;flex-shrink:0;border-radius:10px;display:grid;place-items:center;background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;font-size:15px;font-weight:800;}
.about-feat h4{font-size:15px;margin-bottom:2px;}
.about-feat p{font-size:13px;color:var(--muted);margin:0;}
.about-media{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:200px 200px;gap:16px;}
.about-media figure{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);position:relative;background:#eef1fb;}
.about-media figure img{width:100%;height:100%;object-fit:cover;transition:transform .5s;}
.about-media figure:hover img{transform:scale(1.06);}
.about-media figure.big{grid-column:1 / -1;}
.about-media figcaption{
  position:absolute;left:0;bottom:0;right:0;padding:10px 16px;font-size:13px;font-weight:700;color:#fff;
  background:linear-gradient(0deg,rgba(12,16,40,.78),transparent);
}

/* ================= 服务能力 ================= */
.services{background:#fff;}
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.svc-card{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 26px;transition:.3s;position:relative;overflow:hidden;
}
.svc-card::after{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:linear-gradient(90deg,var(--blue),var(--pink));transform:scaleX(0);transform-origin:left;transition:transform .35s;}
.svc-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);background:#fff;}
.svc-card:hover::after{transform:scaleX(1);}
.svc-ico{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;font-size:22px;font-weight:900;color:#fff;margin-bottom:18px;}
.svc-card h3{font-size:18.5px;margin-bottom:10px;}
.svc-card p{font-size:14px;color:var(--muted);}
.svc-ico.i1{background:linear-gradient(135deg,var(--blue),var(--cyan));}
.svc-ico.i2{background:linear-gradient(135deg,var(--pink),var(--orange));}
.svc-ico.i3{background:linear-gradient(135deg,var(--purple),var(--blue));}
.svc-ico.i4{background:linear-gradient(135deg,var(--orange),var(--yellow));}
.svc-ico.i5{background:linear-gradient(135deg,var(--cyan),var(--blue));}
.svc-ico.i6{background:linear-gradient(135deg,#ff4d4d,var(--pink));}

/* ================= 一站式制作 ================= */
.onestop{background:linear-gradient(160deg,#f0f3ff,#fff6fb);}
.one-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.one-item{
  background:#fff;border-radius:16px;padding:24px 20px;border:1px solid var(--line);
  transition:.3s;position:relative;
}
.one-item:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(255,46,126,.3);}
.one-item .tag{font-size:12px;font-weight:700;color:var(--pink);letter-spacing:1px;}
.one-item h4{margin:8px 0 8px;font-size:16.5px;}
.one-item p{font-size:13px;color:var(--muted);}

/* ================= 行业方案 ================= */
.solution{background:#fff;}
.sol-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.sol-card{
  display:flex;gap:20px;background:var(--bg);border-radius:var(--radius);padding:26px;border:1px solid var(--line);
  transition:.3s;align-items:flex-start;
}
.sol-card:hover{background:#fff;box-shadow:var(--shadow-lg);transform:translateY(-5px);}
.sol-card .badge{
  flex-shrink:0;width:58px;height:58px;border-radius:16px;display:grid;place-items:center;
  font-size:12.5px;font-weight:900;color:#fff;text-align:center;line-height:1.2;
}
.sol-card:nth-child(1) .badge{background:linear-gradient(135deg,var(--blue),var(--cyan));}
.sol-card:nth-child(2) .badge{background:linear-gradient(135deg,var(--pink),var(--orange));}
.sol-card:nth-child(3) .badge{background:linear-gradient(135deg,var(--purple),var(--blue));}
.sol-card:nth-child(4) .badge{background:linear-gradient(135deg,var(--orange),var(--yellow));color:#3a2500;}
.sol-card:nth-child(5) .badge{background:linear-gradient(135deg,var(--cyan),var(--blue));}
.sol-card:nth-child(6) .badge{background:linear-gradient(135deg,#ff4d4d,var(--pink));}
.sol-card h3{font-size:18px;margin-bottom:8px;}
.sol-card p{font-size:14px;color:var(--muted);}

/* ================= 服务网络 ================= */
.network{background:linear-gradient(160deg,#0e1130,#1c1b52 55%,#3a1250);color:#fff;}
.network .sec-head h2{color:#fff;}
.network .sec-head p{color:rgba(255,255,255,.7);}
.network .eyebrow{background:rgba(0,210,198,.15);color:var(--cyan);}
.net-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.net-card{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.13);
  border-radius:var(--radius);padding:26px 22px;transition:.3s;
}
.net-card:hover{transform:translateY(-6px);border-color:rgba(0,210,198,.5);background:rgba(255,255,255,.1);}
.net-card .city{font-size:19px;font-weight:800;margin-bottom:6px;}
.net-card .role{font-size:13px;color:var(--cyan);font-weight:700;margin-bottom:10px;}
.net-card p{font-size:13.5px;color:rgba(255,255,255,.7);}

/* ================= 标准流程 ================= */
.process{background:#fff;}
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;position:relative;}
.step{text-align:center;padding:28px 14px;border-radius:16px;border:1px dashed var(--line);transition:.3s;background:var(--bg);}
.step:hover{border-style:solid;border-color:var(--blue);background:#fff;box-shadow:var(--shadow);transform:translateY(-5px);}
.step .no{
  width:44px;height:44px;margin:0 auto 14px;border-radius:50%;display:grid;place-items:center;
  font-weight:900;color:#fff;background:linear-gradient(135deg,var(--blue),var(--pink));font-size:16px;
}
.step h4{font-size:15.5px;margin-bottom:6px;}
.step p{font-size:12.5px;color:var(--muted);}

/* 时间线 */
.timeline{margin-top:52px;position:relative;padding-left:0;}
.timeline::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;background:linear-gradient(var(--blue),var(--pink),var(--orange));transform:translateX(-50%);}
.tl-item{position:relative;width:50%;padding:0 34px 34px 0;text-align:right;}
.tl-item:nth-child(even){margin-left:50%;padding:0 0 34px 34px;text-align:left;}
.tl-item::after{
  content:"";position:absolute;top:6px;right:-8px;width:14px;height:14px;border-radius:50%;
  background:#fff;border:3px solid var(--blue);box-shadow:0 0 0 4px rgba(31,94,255,.14);
}
.tl-item:nth-child(even)::after{right:auto;left:-8px;border-color:var(--pink);box-shadow:0 0 0 4px rgba(255,46,126,.14);}
.tl-item h4{font-size:16px;margin-bottom:4px;}
.tl-item p{font-size:13.5px;color:var(--muted);}

/* ================= 案例中心 ================= */
.cases{background:linear-gradient(160deg,#f5f6fb,#eef3ff);}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.case-card{
  background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);
  transition:.35s;border:1px solid var(--line);
}
.case-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);}
.case-media{position:relative;height:200px;overflow:hidden;background:#eef1fb;}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s;}
.case-card:hover .case-media img{transform:scale(1.07);}
.case-tag{
  position:absolute;top:14px;left:14px;background:rgba(16,18,35,.72);color:#fff;
  font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px;backdrop-filter:blur(6px);
}
.case-body{padding:22px 24px;}
.case-body h3{font-size:17px;margin-bottom:8px;}
.case-body p{font-size:13.5px;color:var(--muted);}
.case-meta{display:flex;gap:16px;margin-top:14px;font-size:12.5px;color:var(--blue);font-weight:700;}

/* ================= 对比评测 ================= */
.compare{background:#fff;}
.score-banner{
  display:grid;grid-template-columns:auto 1fr auto;gap:32px;align-items:center;
  background:linear-gradient(120deg,var(--ink),#241a5e 65%,#4a1250);color:#fff;
  border-radius:24px;padding:36px 40px;margin-bottom:36px;box-shadow:var(--shadow-lg);
}
.score-num{font-size:64px;font-weight:900;line-height:1;background:linear-gradient(95deg,var(--yellow),var(--orange));-webkit-background-clip:text;background-clip:text;color:transparent;}
.score-num small{font-size:20px;color:rgba(255,255,255,.6);-webkit-text-fill-color:rgba(255,255,255,.6);}
.score-info h3{font-size:22px;margin-bottom:6px;}
.score-info p{font-size:14px;color:rgba(255,255,255,.72);}
.stars{font-size:26px;letter-spacing:3px;color:var(--yellow);white-space:nowrap;}
.table-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line);}
table.compare-table{width:100%;border-collapse:collapse;min-width:720px;background:#fff;}
.compare-table th,.compare-table td{padding:16px 18px;text-align:left;font-size:14.5px;border-bottom:1px solid var(--line);}
.compare-table thead th{background:linear-gradient(95deg,var(--blue),var(--pink));color:#fff;font-weight:800;font-size:14.5px;}
.compare-table tbody tr:nth-child(even){background:#fafbff;}
.compare-table tbody tr:hover{background:#f0f4ff;}
.compare-table td:first-child{font-weight:700;color:var(--ink);}
.compare-table td.hl{color:var(--blue);font-weight:800;}
.tag-good{display:inline-block;background:rgba(0,210,198,.14);color:#0a8f86;font-size:12px;font-weight:800;padding:2px 10px;border-radius:999px;}

/* ================= 需求匹配 / 表单 ================= */
.match{background:linear-gradient(160deg,#eef2ff,#fff0f7);}
.match-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:start;}
.match-info h2{font-size:clamp(24px,3vw,34px);font-weight:800;margin-bottom:16px;}
.match-info p{color:var(--ink-soft);margin-bottom:22px;font-size:15px;}
.match-list{list-style:none;display:grid;gap:12px;}
.match-list li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:var(--ink-soft);}
.match-list li::before{content:"✓";flex-shrink:0;width:22px;height:22px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;font-size:12px;display:grid;place-items:center;font-weight:900;margin-top:2px;}
.form-card{background:#fff;border-radius:22px;padding:36px;box-shadow:var(--shadow-lg);border:1px solid var(--line);}
.form-card h3{font-size:20px;margin-bottom:6px;}
.form-card .tip{font-size:13px;color:var(--muted);margin-bottom:22px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.form-group{margin-bottom:16px;}
.form-group label{display:block;font-size:13.5px;font-weight:700;margin-bottom:7px;color:var(--ink-soft);}
.form-group input,.form-group select,.form-group textarea{
  width:100%;padding:12px 15px;border-radius:12px;border:1.5px solid var(--line);
  background:var(--bg);font-size:14px;font-family:inherit;color:var(--ink);transition:.25s;outline:none;
}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{
  border-color:var(--blue);background:#fff;box-shadow:0 0 0 4px rgba(31,94,255,.1);
}
.form-group textarea{resize:vertical;min-height:100px;}
.form-submit{width:100%;justify-content:center;margin-top:6px;padding:15px;}
.form-msg{margin-top:14px;font-size:13.5px;color:var(--blue);text-align:center;display:none;}
.form-msg.show{display:block;}

/* ================= Token比价 ================= */
.token{background:#fff;}
.price-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.price-card{
  border-radius:var(--radius);border:1.5px solid var(--line);padding:28px 24px;background:var(--bg);
  transition:.3s;position:relative;
}
.price-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);background:#fff;border-color:var(--blue);}
.price-card.featured{border-color:var(--pink);background:linear-gradient(180deg,#fff0f7,#fff);}
.price-card .ribbon{position:absolute;top:-11px;right:20px;background:linear-gradient(95deg,var(--pink),var(--orange));color:#fff;font-size:11.5px;font-weight:800;padding:3px 12px;border-radius:999px;}
.price-card h4{font-size:15.5px;color:var(--muted);font-weight:700;margin-bottom:10px;}
.price-card .price{font-size:34px;font-weight:900;color:var(--blue);line-height:1.1;}
.price-card .price span{font-size:14px;color:var(--muted);font-weight:600;}
.price-card ul{list-style:none;margin-top:16px;display:grid;gap:8px;font-size:13px;color:var(--ink-soft);}
.price-card ul li::before{content:"•";color:var(--pink);font-weight:900;margin-right:8px;}

/* ================= 标签云 / 模型 ================= */
.models{background:linear-gradient(160deg,#f0f3ff,#f6f0ff);}
.tagcloud{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;max-width:1000px;margin:0 auto;}
.tagcloud span{
  font-size:14px;font-weight:700;padding:9px 20px;border-radius:999px;background:#fff;
  border:1px solid var(--line);color:var(--ink-soft);transition:.25s;cursor:default;
}
.tagcloud span:hover{background:linear-gradient(95deg,var(--blue),var(--pink));color:#fff;border-color:transparent;transform:translateY(-3px) scale(1.03);}

/* ================= 评论 ================= */
.reviews{background:#fff;}
.rev-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.rev-card{
  background:var(--bg);border-radius:var(--radius);padding:28px;border:1px solid var(--line);
  transition:.3s;display:flex;flex-direction:column;
}
.rev-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);background:#fff;}
.rev-top{display:flex;align-items:center;gap:14px;margin-bottom:16px;}
.avatar{
  width:48px;height:48px;border-radius:50%;display:grid;place-items:center;color:#fff;font-weight:900;font-size:18px;flex-shrink:0;
}
.rev-card:nth-child(1) .avatar{background:linear-gradient(135deg,var(--blue),var(--cyan));}
.rev-card:nth-child(2) .avatar{background:linear-gradient(135deg,var(--pink),var(--orange));}
.rev-card:nth-child(3) .avatar{background:linear-gradient(135deg,var(--purple),var(--blue));}
.rev-card:nth-child(4) .avatar{background:linear-gradient(135deg,var(--orange),var(--yellow));color:#3a2500;}
.rev-card:nth-child(5) .avatar{background:linear-gradient(135deg,var(--cyan),var(--blue));}
.rev-card:nth-child(6) .avatar{background:linear-gradient(135deg,#ff4d4d,var(--pink));}
.rev-name{font-size:15px;font-weight:800;}
.rev-role{font-size:12.5px;color:var(--muted);}
.rev-stars{color:var(--yellow);font-size:14px;letter-spacing:1px;margin-bottom:10px;}
.rev-card p{font-size:14px;color:var(--ink-soft);flex:1;}

/* ================= 帮助中心 / FAQ ================= */
.help{background:linear-gradient(160deg,#f5f6fb,#eef3ff);}
.faq-list{max-width:880px;margin:0 auto;display:grid;gap:14px;}
.faq-item{background:#fff;border-radius:14px;border:1px solid var(--line);overflow:hidden;transition:.3s;}
.faq-item:hover{border-color:rgba(31,94,255,.35);box-shadow:var(--shadow);}
.faq-q{
  width:100%;text-align:left;background:none;border:0;padding:20px 24px;font-size:15.5px;font-weight:700;
  color:var(--ink);cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;font-family:inherit;
}
.faq-q .plus{font-size:20px;color:var(--blue);transition:transform .3s;flex-shrink:0;font-weight:400;}
.faq-item.open .faq-q .plus{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 24px;color:var(--muted);font-size:14.5px;}
.faq-item.open .faq-a{max-height:320px;padding-bottom:22px;}

/* ================= AI百科 / 文章 ================= */
.articles{background:#fff;}
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.article-card{
  border-radius:var(--radius);border:1px solid var(--line);padding:26px;background:var(--bg);
  transition:.3s;display:flex;flex-direction:column;
}
.article-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);background:#fff;}
.article-card .cat{font-size:12px;font-weight:800;color:var(--pink);letter-spacing:1px;margin-bottom:10px;}
.article-card h3{font-size:16.5px;margin-bottom:10px;}
.article-card p{font-size:13.5px;color:var(--muted);flex:1;}
.article-card .more{margin-top:16px;font-size:13.5px;font-weight:800;color:var(--blue);}

/* ================= 行业资讯 ================= */
.news{background:linear-gradient(160deg,#eef2ff,#fff6fb);}
.news-list{display:grid;gap:14px;max-width:960px;margin:0 auto;}
.news-item{
  display:flex;gap:20px;align-items:center;background:#fff;border-radius:14px;padding:18px 24px;
  border:1px solid var(--line);transition:.28s;
}
.news-item:hover{transform:translateX(6px);box-shadow:var(--shadow);border-color:rgba(255,46,126,.3);}
.news-date{font-size:13px;font-weight:900;color:var(--blue);background:rgba(31,94,255,.08);padding:8px 14px;border-radius:10px;flex-shrink:0;}
.news-item h4{font-size:15.5px;}
.news-item p{font-size:13px;color:var(--muted);}

/* ================= 加盟代理 ================= */
.join{background:linear-gradient(120deg,var(--ink),#2a1668 60%,#5a1250);color:#fff;}
.join-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;}
.join h2{font-size:clamp(24px,3.2vw,36px);margin-bottom:16px;}
.join p{color:rgba(255,255,255,.76);font-size:15px;margin-bottom:22px;}
.join-feats{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:26px;}
.join-feat{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.13);border-radius:14px;padding:16px 18px;}
.join-feat h4{font-size:15px;margin-bottom:4px;color:var(--yellow);}
.join-feat p{font-size:13px;color:rgba(255,255,255,.72);margin:0;}
.join-panel{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.15);border-radius:22px;padding:34px;}
.join-panel h3{font-size:20px;margin-bottom:16px;}
.join-panel ul{list-style:none;display:grid;gap:13px;font-size:14px;color:rgba(255,255,255,.82);}
.join-panel ul li{display:flex;gap:10px;align-items:flex-start;}
.join-panel ul li::before{content:"◆";color:var(--cyan);font-size:11px;margin-top:6px;}

/* ================= 联系我们 ================= */
.contact{background:#fff;}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start;}
.contact-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.contact-card{background:var(--bg);border:1px solid var(--line);border-radius:16px;padding:22px;transition:.3s;}
.contact-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);background:#fff;}
.contact-card .lab{font-size:12.5px;color:var(--muted);font-weight:700;margin-bottom:6px;}
.contact-card .val{font-size:15px;font-weight:800;word-break:break-all;}
.contact-card .val a:hover{color:var(--blue);}
.qr-card{display:flex;gap:18px;align-items:center;background:var(--bg);border:1px solid var(--line);border-radius:16px;padding:20px;}
.qr-card img{width:104px;height:104px;border-radius:12px;object-fit:cover;border:1px solid var(--line);background:#fff;}
.qr-card h4{font-size:15px;margin-bottom:6px;}
.qr-card p{font-size:13px;color:var(--muted);}
.promo{margin-top:22px;border-radius:18px;overflow:hidden;box-shadow:var(--shadow);}
.promo img{width:100%;height:auto;}

/* ================= 页脚 ================= */
footer.site-footer{background:#0b0d20;color:rgba(255,255,255,.7);padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:36px;margin-bottom:44px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand p{font-size:13.5px;margin-top:14px;line-height:1.9;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;}
.footer-col ul{list-style:none;display:grid;gap:10px;font-size:13.5px;}
.footer-col ul a{transition:.2s;}
.footer-col ul a:hover{color:var(--cyan);padding-left:4px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:24px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;font-size:13px;}
.footer-bottom a:hover{color:var(--cyan);}

/* ================= 浮动客服 / 返回顶部 ================= */
.float-tools{position:fixed;right:20px;bottom:28px;z-index:1200;display:flex;flex-direction:column;gap:12px;}
.float-btn{
  width:56px;height:56px;border-radius:16px;border:0;cursor:pointer;display:grid;place-items:center;
  box-shadow:0 12px 26px rgba(24,32,90,.22);transition:.28s;font-size:22px;color:#fff;position:relative;
}
.float-btn.kf{background:linear-gradient(135deg,var(--blue),var(--pink));}
.float-btn.top{background:linear-gradient(135deg,#3a3f5c,#1b2050);opacity:0;pointer-events:none;transform:translateY(10px);}
.float-btn.top.show{opacity:1;pointer-events:auto;transform:translateY(0);}
.float-btn:hover{transform:translateY(-4px) scale(1.06);}
.kf-layer{
  position:fixed;right:88px;bottom:28px;width:260px;background:#fff;border-radius:18px;
  box-shadow:0 20px 50px rgba(24,32,90,.25);padding:20px;z-index:1201;
  opacity:0;pointer-events:none;transform:translateY(14px);transition:.3s;border:1px solid var(--line);
}
.kf-layer.show{opacity:1;pointer-events:auto;transform:translateY(0);}
.kf-layer h4{font-size:15px;margin-bottom:10px;}
.kf-layer img{width:100%;height:auto;border-radius:12px;margin-bottom:10px;}
.kf-layer p{font-size:12.5px;color:var(--muted);line-height:1.8;}

/* ================= 动画 ================= */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease;}
.reveal.visible{opacity:1;transform:translateY(0);}

/* ================= 响应式 ================= */
@media(max-width:1080px){
  .hero-grid{grid-template-columns:1fr;}
  .hero-visual{display:none;}
  .svc-grid,.one-grid,.net-grid,.price-grid,.rev-grid,.article-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(3,1fr);}
  .case-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .score-banner{grid-template-columns:1fr;gap:18px;text-align:center;}
  .stars{justify-self:center;}
}
@media(max-width:860px){
  .nav-links{
    position:fixed;top:72px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;
    padding:10px 16px 20px;gap:0;border-bottom:1px solid var(--line);box-shadow:var(--shadow-lg);
    max-height:0;overflow:hidden;transition:max-height .35s ease;
  }
  .nav-links.open{max-height:70vh;overflow-y:auto;}
  .nav-links a{padding:13px 12px;border-bottom:1px solid #f2f4fb;}
  .hamburger{display:flex;}
  .nav-cta .btn-ghost{display:none;}
  .about-grid,.sol-grid,.match-grid,.join-grid,.contact-grid,.about-media{grid-template-columns:1fr;}
  .about-media{grid-template-rows:200px 200px;grid-template-columns:1fr 1fr;}
  .about-media figure.big{grid-column:1 / -1;}
  .timeline::before{left:8px;}
  .tl-item,.tl-item:nth-child(even){width:100%;margin-left:0;padding:0 0 30px 34px;text-align:left;}
  .tl-item::after,.tl-item:nth-child(even)::after{left:0;right:auto;}
  .stats-grid{grid-template-columns:1fr 1fr;}
  .contact-cards{grid-template-columns:1fr;}
  .form-card{padding:26px 22px;}
}
@media(max-width:600px){
  section{padding:56px 0;}
  .hero{padding:64px 0 60px;}
  .svc-grid,.one-grid,.net-grid,.price-grid,.rev-grid,.article-grid,.case-grid,.steps,.join-feats,.about-feats,.form-row{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:1fr;}
  .brand-name{font-size:16.5px;}
  .ai-page-logo{height:32px;}
  .nav-wrap{height:64px;}
  .nav-links{top:64px;}
  .hero-actions .btn{width:100%;justify-content:center;}
  .float-tools{right:14px;bottom:18px;}
  .float-btn{width:50px;height:50px;font-size:19px;}
  .kf-layer{right:14px;bottom:138px;width:calc(100% - 28px);max-width:300px;}
  .news-item{flex-direction:column;align-items:flex-start;gap:10px;}
  .footer-grid{grid-template-columns:1fr;}
  .score-num{font-size:52px;}
}