:root{
  --bg:#08030f;
  --bg-2:#0e0618;
  --panel:#140a24;
  --panel-2:#1b0d31;
  --line:rgba(255,64,200,.22);
  --pink:#ff2ec4;
  --pink-2:#ff6ee0;
  --purple:#8b3dff;
  --purple-2:#b478ff;
  --cyan:#2ee6ff;
  --text:#f3e9ff;
  --muted:#b9a6d6;
  --green:#32e6a0;
  --radius:16px;
  --shadow:0 18px 50px rgba(255,46,196,.18);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
section{position:relative;padding:88px 0}
.sec-head{text-align:center;max-width:820px;margin:0 auto 48px}
.eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--pink-2);border:1px solid var(--line);padding:6px 16px;border-radius:999px;
  background:rgba(255,46,196,.07);margin-bottom:18px;
}
.sec-head h2{
  font-size:clamp(24px,3.4vw,38px);line-height:1.3;
  background:linear-gradient(100deg,#fff 10%,var(--pink-2) 55%,var(--purple-2) 95%);
  -webkit-background-clip:text;background-clip:text;color:transparent;font-weight:800;
}
.sec-head p{color:var(--muted);margin-top:14px;font-size:15px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 30px;border-radius:999px;font-weight:700;font-size:15px;
  border:1px solid transparent;cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,background .22s ease;
}
.btn-primary{
  background:linear-gradient(120deg,var(--pink),var(--purple));
  color:#fff;box-shadow:0 10px 28px rgba(255,46,196,.4);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 16px 38px rgba(255,46,196,.55)}
.btn-ghost{
  background:rgba(255,255,255,.04);border-color:var(--line);color:var(--text);
}
.btn-ghost:hover{transform:translateY(-3px);background:rgba(255,46,196,.14);box-shadow:var(--shadow)}
.btn:active{transform:scale(.97)}

/* ===== header ===== */
header.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(8,3,15,.82);backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:70px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand .ai-page-logo{height:36px;width:auto}
.brand-text{font-weight:800;font-size:18px;letter-spacing:.03em;background:linear-gradient(90deg,#fff,var(--pink-2));-webkit-background-clip:text;background-clip:text;color:transparent;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:0;flex-wrap:nowrap}
.nav-links a{
  font-size:14px;color:#d9c9f2;padding:8px 10px;border-radius:8px;white-space:nowrap;
  transition:color .2s,background .2s;
}
.nav-links a:hover{color:#fff;background:rgba(255,46,196,.14)}
.nav-cta{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-cta .btn{padding:10px 20px;font-size:13px}
.menu-toggle{display:none;background:none;border:1px solid var(--line);border-radius:10px;color:var(--text);width:42px;height:42px;font-size:20px;cursor:pointer}
.mobile-nav{display:none;flex-direction:column;padding:10px 20px 22px;border-top:1px solid rgba(255,255,255,.06)}
.mobile-nav a{padding:12px 4px;border-bottom:1px solid rgba(255,255,255,.05);font-size:15px;color:#d9c9f2}
.mobile-nav.open{display:flex}

/* ===== hero ===== */
.hero{
  position:relative;padding:96px 0 80px;overflow:hidden;
  background:radial-gradient(circle at 15% 10%,rgba(255,46,196,.2),transparent 45%),
             radial-gradient(circle at 85% 80%,rgba(139,61,255,.22),transparent 48%),
             var(--bg);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:60px 60px;
  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%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:54px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--cyan);
  background:rgba(46,230,255,.08);border:1px solid rgba(46,230,255,.3);
  padding:6px 16px;border-radius:999px;margin-bottom:22px;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.7)}}
.hero h1{
  font-size:clamp(30px,4.4vw,54px);line-height:1.2;font-weight:900;letter-spacing:.01em;
  background:linear-gradient(110deg,#fff 5%,var(--pink-2) 48%,var(--purple-2) 92%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{margin-top:22px;color:var(--muted);font-size:16px;max-width:620px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tags span{
  font-size:13px;padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:#e6d6ff;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.stat-card{
  padding:22px 20px;border-radius:var(--radius);
  background:linear-gradient(150deg,rgba(255,46,196,.14),rgba(139,61,255,.1));
  border:1px solid var(--line);transition:transform .25s,box-shadow .25s;
}
.stat-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.stat-card b{display:block;font-size:30px;font-weight:900;background:linear-gradient(90deg,#fff,var(--pink-2));-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.2}
.stat-card small{color:var(--muted);font-size:13px}

/* ===== 数据条 ===== */
.metrics-bar{
  background:linear-gradient(90deg,rgba(255,46,196,.14),rgba(139,61,255,.14));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:34px 0;
}
.metrics-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px;text-align:center}
.metrics-grid b{display:block;font-size:clamp(22px,2.6vw,32px);font-weight:900;color:#fff}
.metrics-grid b span{color:var(--pink-2)}
.metrics-grid small{color:var(--muted);font-size:13px}

/* ===== 通用卡片网格 ===== */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{
  background:linear-gradient(160deg,var(--panel),var(--panel-2));
  border:1px solid var(--line);border-radius:var(--radius);padding:28px;
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
  position:relative;overflow:hidden;
}
.card::after{
  content:"";position:absolute;top:0;left:0;width:100%;height:2px;
  background:linear-gradient(90deg,var(--pink),var(--purple),transparent);
  opacity:0;transition:opacity .3s;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(255,46,196,.5)}
.card:hover::after{opacity:1}
.card h3{font-size:18px;margin-bottom:10px;color:#fff;font-weight:800}
.card p{color:var(--muted);font-size:14px;line-height:1.75}
.icon-badge{
  width:48px;height:48px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(255,46,196,.28),rgba(139,61,255,.28));
  border:1px solid var(--line);margin-bottom:16px;font-size:22px;
}
.card .tag-line{margin-top:14px;font-size:12.5px;color:var(--cyan)}

/* 平台介绍 */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.about-list{list-style:none;display:grid;gap:14px;margin-top:26px}
.about-list li{display:flex;gap:12px;font-size:14.5px;color:#dccdf3}
.about-list li::before{content:"◆";color:var(--pink);flex-shrink:0}
.about-visual{position:relative;border-radius:20px;overflow:hidden;border:1px solid var(--line)}
.about-visual img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.about-visual:hover img{transform:scale(1.05)}

/* 服务能力 */
.svc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.svc-item{
  padding:22px 18px;border-radius:14px;border:1px solid var(--line);
  background:rgba(255,255,255,.03);transition:.25s;font-size:14.5px;font-weight:600;
}
.svc-item:hover{background:rgba(255,46,196,.12);transform:translateY(-4px)}

/* 流程步骤 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative}
.step{
  padding:26px 22px;border-radius:var(--radius);background:var(--panel);
  border:1px solid var(--line);transition:.25s;
}
.step:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.step .num{
  font-size:34px;font-weight:900;background:linear-gradient(120deg,var(--pink),var(--purple-2));
  -webkit-background-clip:text;background-clip:text;color:transparent;line-height:1;
}
.step h4{margin:12px 0 8px;font-size:16px;color:#fff}
.step p{font-size:13.5px;color:var(--muted)}

/* 表格 */
.table-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--line)}
table{width:100%;border-collapse:collapse;min-width:640px;font-size:14px;background:var(--panel)}
thead th{
  background:linear-gradient(90deg,rgba(255,46,196,.2),rgba(139,61,255,.2));
  color:#fff;padding:16px;text-align:left;font-weight:800;white-space:nowrap;
}
tbody td{padding:15px 16px;border-top:1px solid rgba(255,255,255,.06);color:#dccdf3;vertical-align:top}
tbody tr:hover{background:rgba(255,46,196,.06)}
td .yes{color:var(--green);font-weight:700}
td .best{color:var(--pink-2);font-weight:800}

/* 评分卡 */
.score-panel{
  display:grid;grid-template-columns:auto 1fr;gap:34px;align-items:center;
  padding:36px;border-radius:20px;margin-bottom:34px;
  background:linear-gradient(140deg,rgba(255,46,196,.16),rgba(139,61,255,.16));
  border:1px solid var(--line);
}
.score-big{text-align:center;padding-right:34px;border-right:1px solid var(--line)}
.score-big b{font-size:64px;font-weight:900;line-height:1;background:linear-gradient(120deg,#fff,var(--pink-2));-webkit-background-clip:text;background-clip:text;color:transparent;display:block}
.score-big small{color:var(--muted);font-size:13px}
.stars{color:#ffd34d;font-size:22px;letter-spacing:3px;margin-bottom:8px}
.score-desc h3{font-size:20px;margin-bottom:8px;color:#fff}
.score-desc p{color:var(--muted);font-size:14px}

/* 案例 */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.case-card{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);background:var(--panel);transition:.28s}
.case-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.case-card img{width:100%;height:220px;object-fit:cover;transition:transform .5s}
.case-card:hover img{transform:scale(1.06)}
.case-body{padding:20px}
.case-body h4{font-size:16px;margin-bottom:8px;color:#fff}
.case-body p{font-size:13.5px;color:var(--muted)}
.case-tag{display:inline-block;font-size:12px;color:var(--cyan);border:1px solid rgba(46,230,255,.3);padding:2px 10px;border-radius:999px;margin-bottom:10px}

/* 评论 */
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.review-card{padding:26px;border-radius:var(--radius);background:var(--panel);border:1px solid var(--line);transition:.25s;display:flex;flex-direction:column}
.review-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:rgba(255,46,196,.45)}
.review-card .stars{font-size:15px;letter-spacing:2px;margin-bottom:12px}
.review-card p{color:#e2d5f7;font-size:14px;flex:1}
.review-user{display:flex;align-items:center;gap:12px;margin-top:18px;padding-top:16px;border-top:1px solid rgba(255,255,255,.07)}
.avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--pink),var(--purple));display:flex;align-items:center;justify-content:center;font-weight:800;color:#fff;font-size:16px;flex-shrink:0}
.review-user b{display:block;font-size:14px;color:#fff}
.review-user small{color:var(--muted);font-size:12.5px}

/* Token比价 */
.token-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.price-card{padding:28px;border-radius:var(--radius);border:1px solid var(--line);background:linear-gradient(160deg,var(--panel),var(--panel-2));transition:.25s}
.price-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.price-card .plan{font-size:13px;color:var(--pink-2);letter-spacing:.14em;margin-bottom:10px}
.price-card h3{font-size:19px;color:#fff;margin-bottom:6px}
.price-card .price{font-size:34px;font-weight:900;color:#fff;margin:12px 0}
.price-card .price em{font-size:15px;font-style:normal;color:var(--muted);font-weight:500}
.price-card ul{list-style:none;margin:16px 0 22px;display:grid;gap:9px;font-size:13.8px;color:#d6c6f0}
.price-card ul li::before{content:"✓";color:var(--green);margin-right:8px;font-weight:800}
.price-card .btn{width:100%}

/* 标签云 */
.tagcloud{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;max-width:960px;margin:0 auto}
.tagcloud a{
  padding:8px 18px;border-radius:999px;border:1px solid var(--line);
  background:rgba(255,255,255,.03);font-size:13.5px;color:#dccdf3;transition:.22s;
}
.tagcloud a:hover{background:rgba(255,46,196,.16);color:#fff;transform:translateY(-3px);border-color:rgba(255,46,196,.55)}

/* 服务网络 */
.network-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.net-item{padding:20px;border-radius:12px;background:rgba(255,255,255,.03);border:1px solid var(--line);text-align:center;transition:.22s}
.net-item:hover{background:rgba(139,61,255,.14);transform:translateY(-4px)}
.net-item b{display:block;color:#fff;font-size:15px;margin-bottom:4px}
.net-item small{color:var(--muted);font-size:12.5px}

/* 时间线 */
.timeline{position:relative;padding-left:32px;max-width:820px;margin:0 auto}
.timeline::before{content:"";position:absolute;left:9px;top:6px;bottom:6px;width:2px;background:linear-gradient(var(--pink),var(--purple))}
.tl-item{position:relative;padding-bottom:30px}
.tl-item::before{content:"";position:absolute;left:-29px;top:6px;width:14px;height:14px;border-radius:50%;background:var(--pink);box-shadow:0 0 12px var(--pink)}
.tl-item h4{color:#fff;font-size:16px;margin-bottom:6px}
.tl-item p{color:var(--muted);font-size:14px}

/* 文章 */
.article-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.article-item{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;border-radius:12px;background:rgba(255,255,255,.03);
  border:1px solid var(--line);transition:.22s;font-size:14.5px;
}
.article-item:hover{background:rgba(255,46,196,.12);transform:translateX(4px);border-color:rgba(255,46,196,.5)}
.article-item span{color:var(--muted);font-size:13px;white-space:nowrap}

/* FAQ */
.faq-list{max-width:900px;margin:0 auto;display:grid;gap:14px}
.faq-item{border:1px solid var(--line);border-radius:12px;background:var(--panel);overflow:hidden;transition:.22s}
.faq-item.open{border-color:rgba(255,46,196,.55);box-shadow:var(--shadow)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;cursor:pointer;font-weight:700;font-size:15.5px;color:#fff;
}
.faq-q .ico{width:26px;height:26px;flex-shrink:0;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:16px;color:var(--pink-2);transition:transform .25s}
.faq-item.open .faq-q .ico{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease,padding .3s ease;color:var(--muted);font-size:14.2px;padding:0 24px}
.faq-item.open .faq-a{max-height:360px;padding:0 24px 20px}

/* 表单 */
.form-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:start}
.contact-list{list-style:none;display:grid;gap:18px;margin-top:26px}
.contact-list li{display:flex;gap:14px;align-items:flex-start;font-size:14.5px;color:#dccdf3}
.contact-list .ci{width:38px;height:38px;border-radius:10px;background:rgba(255,46,196,.14);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:17px}
.contact-list b{color:#fff;display:block;font-size:14px}
.qr-box{margin-top:26px;display:flex;align-items:center;gap:18px}
.qr-box img{width:130px;height:130px;object-fit:cover;border-radius:12px;border:1px solid var(--line);background:#fff;padding:5px}
.qr-box small{color:var(--muted);font-size:13px}
form.req-form{background:linear-gradient(160deg,var(--panel),var(--panel-2));border:1px solid var(--line);border-radius:18px;padding:32px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:16px}
.field label{font-size:13.5px;color:#d9c9f2;font-weight:600}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:10px;border:1px solid rgba(255,255,255,.12);
  background:rgba(0,0,0,.3);color:#fff;font-size:14px;font-family:inherit;outline:none;
  transition:border-color .2s,box-shadow .2s;
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--pink);box-shadow:0 0 0 3px rgba(255,46,196,.15)}
.field textarea{resize:vertical;min-height:110px}
.field select option{background:#140a24;color:#fff}
form.req-form .btn{width:100%;margin-top:6px}
.form-tip{text-align:center;font-size:12.5px;color:var(--muted);margin-top:12px}

/* 友情链接 */
.friend-links{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.friend-links a{padding:9px 18px;border-radius:10px;border:1px solid var(--line);background:rgba(255,255,255,.03);font-size:13.5px;color:#dccdf3;transition:.22s}
.friend-links a:hover{background:rgba(255,46,196,.15);color:#fff;transform:translateY(-3px)}

/* footer */
footer{background:#050209;border-top:1px solid rgba(255,255,255,.07);padding:60px 0 30px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.foot-brand p{color:var(--muted);font-size:13.8px;margin-top:16px;max-width:300px}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.foot-col a{display:block;color:var(--muted);font-size:13.8px;padding:5px 0;transition:.2s}
.foot-col a:hover{color:var(--pink-2)}
.copyright{margin-top:44px;padding-top:24px;border-top:1px solid rgba(255,255,255,.07);text-align:center;color:#8f7fae;font-size:13px}

/* 浮动客服 */
.float-side{position:fixed;right:18px;bottom:90px;z-index:900;display:flex;flex-direction:column;gap:12px}
.float-btn{
  width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--pink),var(--purple));color:#fff;font-size:22px;
  box-shadow:0 10px 26px rgba(255,46,196,.45);cursor:pointer;border:none;transition:.24s;
}
.float-btn:hover{transform:scale(1.1)}
.back-top{position:fixed;right:18px;bottom:24px;z-index:900;width:52px;height:52px;border-radius:50%;border:1px solid var(--line);background:rgba(20,10,36,.9);color:#fff;font-size:20px;cursor:pointer;opacity:0;visibility:hidden;transition:.3s}
.back-top.show{opacity:1;visibility:visible}
.back-top:hover{background:rgba(255,46,196,.3)}

/* 微信弹层 */
.qr-pop{
  position:fixed;right:84px;bottom:90px;z-index:950;background:#140a24;border:1px solid var(--line);
  border-radius:16px;padding:16px;width:200px;text-align:center;box-shadow:var(--shadow);
  display:none;
}
.qr-pop.show{display:block}
.qr-pop img{width:100%;border-radius:10px;background:#fff;padding:6px}
.qr-pop p{font-size:13px;color:var(--muted);margin-top:10px}

/* 动画 */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}

/* 响应 */
@media(max-width:1080px){
  .nav-links{display:none}
  .nav-cta .btn-ghost{display:none}
  .menu-toggle{display:block}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .svc-grid{grid-template-columns:repeat(3,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .review-grid,.case-grid,.token-grid{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr}
  .form-wrap{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .metrics-grid{grid-template-columns:repeat(3,1fr);gap:26px}
  .network-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:720px){
  section{padding:60px 0}
  .hero{padding:64px 0 56px}
  .svc-grid,.grid-3,.steps,.review-grid,.case-grid,.token-grid,.article-list,.grid-2{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .metrics-grid{grid-template-columns:1fr 1fr}
  .score-panel{grid-template-columns:1fr;text-align:center}
  .score-big{border-right:none;border-bottom:1px solid var(--line);padding:0 0 20px}
  .foot-grid{grid-template-columns:1fr}
  .nav-cta .btn-primary{display:none}
  .float-side{right:12px;bottom:80px}
  .qr-pop{right:74px;width:180px}
  .network-grid{grid-template-columns:1fr 1fr}
  .hero-stats{grid-template-columns:1fr 1fr}
}