:root{
  --primary:#1450e0;
  --primary-dark:#0b2e8a;
  --accent:#ff6b2c;
  --green:#16a34a;
  --bg:#ffffff;
  --bg-soft:#f4f6fb;
  --ink:#0e1726;
  --muted:#5b6472;
  --faint:#94a3b8;
  --line:#e6eaf2;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,Segoe UI,sans-serif;background:var(--bg);color:var(--ink);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1120px;margin:0 auto;padding:0 24px}
.container-narrow{max-width:820px}

/* 头部 */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:center;gap:9px}
.brand-logo{width:30px;height:30px;border-radius:7px;background:linear-gradient(135deg,var(--primary),#3b82f6);color:#fff;display:grid;place-items:center;font-size:15px;font-weight:800}
.brand-word{font-size:21px;font-weight:800}
.brand-word em{font-style:normal;color:var(--primary)}
.main-nav{display:flex;gap:26px;margin-left:auto}
.main-nav a{font-size:15px;color:var(--muted);padding:4px 0}
.main-nav a:hover{color:var(--ink)}
.header-right{display:flex;align-items:center;gap:10px}
.btn{display:inline-block;border-radius:8px;font-weight:600;cursor:pointer;transition:.18s;border:none}
.btn-sm{padding:8px 16px;font-size:14px}
.btn-lg{padding:14px 28px;font-size:16px}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-outline{border:1px solid var(--line);color:var(--ink);background:#fff}
.btn-outline:hover{border-color:var(--primary);color:var(--primary)}
.btn-ghost{border:1.5px solid #d4dbe8;color:var(--ink);background:#fff}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn-block{display:block;text-align:center}
.nav-toggle{display:none;background:none;border:none;font-size:22px;cursor:pointer}

/* Hero */
.hero{padding:72px 0 88px;background:radial-gradient(1200px 500px at 50% -10%,#eaf1ff 0%,transparent 60%),linear-gradient(#fff,#f8faff);border-bottom:1px solid var(--line)}
.hero-top{max-width:720px;text-align:center;margin:0 auto}
.pill{display:inline-block;font-size:13px;color:var(--primary);background:#eaf1ff;border:1px solid #d5e3ff;border-radius:99px;padding:5px 14px;font-weight:600;margin-bottom:22px}
.hero h1{font-size:48px;line-height:1.22;font-weight:800;letter-spacing:.5px}
.hero h1 em{font-style:normal;color:var(--primary)}
.lead{margin:20px auto 30px;font-size:17px;color:var(--muted);max-width:600px}
.hero-actions{display:flex;gap:14px;justify-content:center;margin-bottom:44px}
.hero-trust{list-style:none;display:flex;justify-content:center;gap:48px;flex-wrap:wrap}
.hero-trust li{display:flex;flex-direction:column}
.hero-trust b{font-size:28px;font-weight:800;color:var(--ink)}
.hero-trust span{font-size:13px;color:var(--faint)}

/* 产品窗口 */
.hero-window{max-width:900px;margin:56px auto 0;border:1px solid var(--line);border-radius:14px;background:#fff;box-shadow:0 30px 60px rgba(14,23,38,.12);overflow:hidden}
.win-bar{display:flex;align-items:center;gap:7px;padding:12px 16px;border-bottom:1px solid var(--line);background:#fafbfd}
.wd{width:11px;height:11px;border-radius:50%}
.wd-r{background:#ff5f57}.wd-y{background:#febc2e}.wd-g{background:#28c840}
.win-title{margin-left:10px;font-size:13px;color:var(--faint)}
.win-body{display:grid;grid-template-columns:170px 1fr;min-height:320px}
.win-side{border-right:1px solid var(--line);padding:16px 12px;background:#fafbfd}
.side-item{padding:10px 14px;border-radius:8px;font-size:14px;color:var(--muted);margin-bottom:4px}
.side-item.active{background:var(--primary);color:#fff;font-weight:600}
.win-main{padding:18px}
.win-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:18px}
.win-stats .stat{border:1px solid var(--line);border-radius:10px;padding:14px 16px}
.win-stats .stat span{font-size:12px;color:var(--faint)}
.win-stats .stat b{display:block;font-size:22px;font-weight:800;margin:4px 0}
.win-stats .stat i{font-style:normal;font-size:12px;color:var(--green)}
.win-table{font-size:13px}
.trow{display:grid;grid-template-columns:1.2fr 1.6fr 1fr 1.2fr .8fr .9fr;gap:8px;padding:10px 8px;border-bottom:1px solid var(--line);align-items:center}
.trow.thead{color:var(--faint);font-weight:600;border-bottom:1px solid var(--line)}
.pf{display:inline-block;font-size:12px;font-weight:600;border-radius:5px;padding:2px 8px;width:max-content}
.pf-1688{background:#fff3e6;color:#ff7a00}
.pf-tb{background:#ffece6;color:#ff4400}
.pf-tm{background:#ffe6ea;color:#e60012}
.pf-pdd{background:#fdeaea;color:#e02e24}
.pf-jd{background:#fbeaeb;color:#c9161d}
.st{font-weight:600}
.st.ok{color:var(--green)}
.st.wait{color:#d97706}

/* 平台条 */
.platforms{padding:40px 0;border-bottom:1px solid var(--line)}
.platforms p{text-align:center;color:var(--muted);font-size:14px;margin-bottom:18px}
.pf-list{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}
.pf-list .pf{font-size:15px;padding:8px 22px;border-radius:8px}

/* 区块 */
.section{padding:84px 0}
.section-soft{background:var(--bg-soft)}
.sec-head{max-width:640px;margin-bottom:48px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-head h2{font-size:34px;font-weight:800;line-height:1.3}
.sec-head h2 em{font-style:normal;color:var(--primary)}
.sec-head p{margin-top:12px;color:var(--muted)}

/* 利润点 */
.profit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.profit-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:28px;transition:.18s}
.profit-card:hover{border-color:var(--primary);box-shadow:0 10px 30px rgba(20,80,224,.08);transform:translateY(-2px)}
.profit-card .ic{display:grid;place-items:center;width:44px;height:44px;border-radius:10px;background:#eaf1ff;color:var(--primary);font-size:20px;font-weight:800;margin-bottom:16px}
.profit-card h3{font-size:18px;margin-bottom:8px}
.profit-card p{font-size:14px;color:var(--muted)}

/* 好处 */
.benefit-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.benefit-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:26px 22px;border-top:3px solid var(--primary)}
.benefit-card b{display:block;font-size:17px;margin-bottom:10px}
.benefit-card p{font-size:14px;color:var(--muted)}

/* 功能 */
.feat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.feat-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px}
.feat-mini{background:var(--bg-soft);border:1px solid var(--line);border-radius:10px;padding:14px;margin-bottom:18px;min-height:96px}
.feat-card h3{font-size:19px;margin-bottom:8px}
.feat-card p{font-size:14.5px;color:var(--muted)}
.mini-row{display:flex;justify-content:space-between;padding:7px 8px;border-bottom:1px solid var(--line);font-size:13px}
.mini-row:last-child{border-bottom:none}
.mini-logos{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.mini-progress .pg{height:8px;background:#e6eaf2;border-radius:99px;overflow:hidden;margin-bottom:10px}
.mini-progress .pg span{display:block;height:100%;background:var(--primary);width:80%}
.mini-progress p{font-size:13px;color:var(--muted)}
.mini-money{display:flex;gap:10px;align-items:center;font-size:14px;font-weight:600}
.mini-money p{font-size:12px;color:var(--faint);margin-top:6px;font-weight:400}

/* 流程 */
.timeline{list-style:none;display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.timeline li{background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px 18px}
.timeline li span{display:inline-grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--primary);color:#fff;font-weight:700;margin-bottom:12px}
.timeline li b{display:block;font-size:16px;margin-bottom:4px}
.timeline li p{font-size:13px;color:var(--faint)}

/* 案例 */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.case-card{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}
.case-thumb{height:110px;display:grid;place-items:center;font-size:30px;font-weight:800;color:var(--primary);background:linear-gradient(135deg,#eaf1ff,#f4f6fb)}
.case-body{padding:22px}
.case-body span{font-size:12px;color:var(--primary);background:#eaf1ff;border-radius:99px;padding:3px 12px;font-weight:600}
.case-body h3{font-size:18px;margin:12px 0 8px}
.case-body p{font-size:14px;color:var(--muted)}

/* FAQ */
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;font-weight:600;font-size:16px;padding:20px 0;list-style:none;position:relative}
.faq summary::after{content:"＋";position:absolute;right:4px;color:var(--primary);font-size:18px}
.faq details[open] summary::after{content:"－"}
.faq details p{padding:0 0 20px;color:var(--muted)}

/* CTA */
.cta-panel{background:linear-gradient(135deg,var(--primary-dark),var(--primary));border-radius:18px;padding:52px;display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:center;color:#fff}
.cta-copy h2{font-size:32px;margin-bottom:12px}
.cta-copy h2 em{font-style:normal;color:#ffd7a8}
.cta-copy>p{color:#cdd8f5;margin-bottom:28px}
.cta-actions{display:flex;gap:14px}
.cta-panel .btn-ghost{border-color:rgba(255,255,255,.4);color:#fff;background:transparent}
.cta-panel .btn-ghost:hover{background:rgba(255,255,255,.12)}
.cta-panel .btn-primary{background:#fff;color:var(--primary)}
.cta-panel .btn-primary:hover{background:#eaf1ff}
.cta-qr{background:#fff;color:var(--ink);border-radius:12px;padding:22px;text-align:center}
.cta-qr img{width:150px;margin:0 auto 12px}
.cta-qr p{font-size:13px;color:var(--muted)}

/* 页脚 */
.footer{background:#0b1324;color:#b6bfd0;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;padding-bottom:38px}
.footer-brand .brand-word{font-size:22px;color:#fff}
.footer-brand .brand-word em{color:#5b8def}
.footer-brand p{margin-top:14px;font-size:14px;color:#8b97ab;max-width:360px}
.footer h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer ul{list-style:none;display:flex;flex-direction:column;gap:10px;font-size:14px}
.footer ul a:hover{color:#fff}
.footer-bottom{border-top:1px solid #1d2a40;padding:22px 0 26px;font-size:13px;color:#6b778c;text-align:center}
.footer-bottom a{color:#6b778c}
.footer-bottom a:hover{color:#fff}
.footer-bottom p{margin:6px 0}

/* 弹窗 */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);display:none;align-items:center;justify-content:center;z-index:100}
.modal-overlay.show{display:flex}
.modal{background:#fff;border-radius:14px;padding:32px;width:360px;max-width:92vw;text-align:center;position:relative}
.modal-close{position:absolute;top:14px;right:14px;background:none;border:none;font-size:18px;cursor:pointer;color:#999}
.modal h3{font-size:20px;margin-bottom:6px}
.modal .sub{color:#999;font-size:14px;margin-bottom:18px}
.modal-qr{width:180px;margin:0 auto 18px}
.modal-row{display:flex;justify-content:center;gap:12px;margin:8px 0;font-size:14px}
.modal-row span{color:#999}
.modal .btn-block{margin-top:18px}

/* 悬浮微信 */
.float-wx{position:fixed;right:20px;bottom:24px;z-index:60}
.wx-pop{display:none;position:absolute;right:0;bottom:70px;background:#fff;border-radius:12px;padding:14px;width:180px;text-align:center;box-shadow:0 10px 30px rgba(0,0,0,.2)}
.wx-pop.show{display:block}
.wx-pop img{width:140px;margin:0 auto 8px}
.wx-pop b{font-size:14px}
.wx-pop p{font-size:12px;color:#999;margin-top:4px}
.wx-fab{width:56px;height:56px;border-radius:50%;background:var(--primary);color:#fff;font-size:12px;font-weight:700;display:grid;place-items:center;line-height:1.2;cursor:pointer;box-shadow:0 6px 18px rgba(20,80,224,.4)}

/* 响应式 */
@media (max-width:920px){
  .hero h1{font-size:38px}
  .profit-grid{grid-template-columns:1fr 1fr}
  .benefit-grid{grid-template-columns:1fr 1fr}
  .feat-grid{grid-template-columns:1fr}
  .timeline{grid-template-columns:repeat(3,1fr)}
  .case-grid{grid-template-columns:1fr}
  .cta-panel{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .win-body{grid-template-columns:1fr}
  .win-side{display:none}
  .trow{grid-template-columns:1.1fr 1.5fr 1fr .9fr .8fr}
  .trow span:nth-child(4){display:none}
}
@media (max-width:640px){
  .hero h1{font-size:30px}
  .nav-toggle{display:block}
  .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:#fff;flex-direction:column;padding:16px 24px;border-bottom:1px solid var(--line)}
  .main-nav.open{display:flex}
  .header-right .btn{display:none}
  .profit-grid{grid-template-columns:1fr}
  .benefit-grid{grid-template-columns:1fr}
  .timeline{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr}
  .win-stats{grid-template-columns:1fr 1fr}
  .trow{grid-template-columns:1fr 1fr 1fr}
  .trow span:nth-child(n+4){display:none}
}