:root{
  --red:#ff5e4b; --red-d:#f4402c; --grad:linear-gradient(135deg,#ff8a5c 0%,#ff5e4b 55%,#f4402c 100%);
  --ink:#1f2d3d; --tx:#333; --tx2:#666; --tx3:#999;
  --line:#eceef1; --alt:#f7f8fa;
  --r:14px; --sh:0 10px 30px rgba(31,45,61,.07);
  --wrap:1120px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  color:var(--tx); font-size:16px; line-height:1.75; background:#fff; -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p{margin:0}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}

/* nav */
.nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line)}
.nav-in{height:72px;display:flex;align-items:center;gap:36px}
.brand{display:flex;align-items:center;gap:10px}
.mark{width:38px;height:38px;display:block}
.brand-tx{display:flex;flex-direction:column;line-height:1.1}
.brand-tx b{font-size:21px;letter-spacing:1px;color:var(--ink)}
.brand-tx i{font-style:normal;font-size:11px;color:var(--tx3);letter-spacing:1.6px}
.menu{display:flex;gap:30px;margin-left:8px}
.menu a{font-size:15px;color:var(--tx2);position:relative;padding:6px 0;transition:color .2s}
.menu a:hover{color:var(--red)}
.menu a::after{content:"";position:absolute;left:50%;bottom:-2px;width:0;height:2px;background:var(--red);border-radius:2px;transform:translateX(-50%);transition:width .25s}
.menu a:hover::after{width:100%}
.nav-cta{margin-left:auto;display:flex;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;height:38px;padding:0 18px;border-radius:10px;font-size:14px;font-weight:600;transition:all .22s;white-space:nowrap}
.btn-ghost{border:1px solid #ffd9d3;color:var(--red-d);background:#fff7f6}
.btn-ghost:hover{background:var(--red);color:#fff;border-color:var(--red)}
.btn-solid{background:var(--grad);color:#fff;box-shadow:0 6px 16px rgba(255,94,75,.32)}
.btn-solid:hover{transform:translateY(-1px);box-shadow:0 10px 22px rgba(255,94,75,.42)}
.btn-lg{height:50px;padding:0 34px;font-size:16px;border-radius:12px}
.btn-light{background:#fff;color:var(--red-d);box-shadow:0 8px 24px rgba(0,0,0,.14)}
.btn-light:hover{transform:translateY(-2px)}
.line-light{border:1px solid rgba(255,255,255,.7);color:#fff}
.line-light:hover{background:rgba(255,255,255,.14)}

/* hero */
.hero{position:relative;overflow:hidden;background:var(--grad);color:#fff;padding:104px 0 112px;text-align:center}
.hero-deco{position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(620px 620px at 50% -10%,rgba(255,255,255,.22),transparent 62%),
    repeating-linear-gradient(115deg,rgba(255,255,255,.05) 0 2px,transparent 2px 44px);
}
.hero-in{position:relative}
.eyebrow{display:inline-block;font-size:14px;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.28);padding:5px 16px;border-radius:999px;margin-bottom:24px}
.hero h1{font-size:58px;line-height:1.15;letter-spacing:2px;font-weight:800}
.hero h1 .thin{opacity:.6;font-weight:300;margin:0 8px}
.lead{margin:22px auto 0;font-size:18px;line-height:1.95;max-width:660px;color:rgba(255,255,255,.94)}
.lead b{color:#fff;border-bottom:2px solid rgba(255,255,255,.55);padding-bottom:1px}
.hero-btns{display:flex;justify-content:center;flex-wrap:wrap;gap:14px;margin-top:40px}

/* sections */
.sec{padding:92px 0}
.sec-head{text-align:center;margin-bottom:44px}
.sec-head h2{font-size:34px;color:var(--ink);letter-spacing:1px;display:inline-block;position:relative;padding:0 22px}
.sec-head h2::before,.sec-head h2::after{content:"";position:absolute;top:50%;width:5px;height:20px;background:var(--red);border-radius:3px;transform:translateY(-50%)}
.sec-head h2::before{left:0;box-shadow:8px 0 0 rgba(255,94,75,.32)}
.sec-head h2::after{right:0;box-shadow:-8px 0 0 rgba(255,94,75,.32)}
.grid{display:grid;gap:22px}
.g3{grid-template-columns:repeat(3,1fr)}
.rule{background:var(--alt);border:1px solid #f0f1f4;border-radius:var(--r);padding:28px 26px;transition:all .22s}
.rule:hover{background:#fff;border-color:#ffd9d3;box-shadow:var(--sh)}
.rule h3{font-size:18px;color:var(--ink);margin-bottom:10px}
.rule p{font-size:15px;color:var(--tx2)}
.rule p b{color:var(--red-d)}

/* stats */
.stats{background:var(--ink);color:#fff;padding:52px 0;position:relative;overflow:hidden}
.stats::after{content:"";position:absolute;inset:0;background:radial-gradient(700px 240px at 15% 0%,rgba(255,94,75,.28),transparent 60%)}
.stats-in{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stats-in>div{padding:6px 0;position:relative}
.stats-in>div+div::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:1px;height:46px;background:rgba(255,255,255,.14)}
.stats-in b{display:block;font-size:42px;font-weight:800;letter-spacing:1px;line-height:1.2}
.stats-in b i{font-style:normal;font-size:16px;font-weight:500;opacity:.75;margin-left:2px}
.stats-in span{font-size:14px;color:rgba(255,255,255,.6)}

/* 手机端入口 */
.mobile{background:var(--alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:76px 0}
.mobile-in{display:grid;grid-template-columns:1fr auto;gap:52px;align-items:center}
.mobile-tx h2{font-size:30px;color:var(--ink);letter-spacing:1px;display:inline-block;position:relative;padding-left:22px}
.mobile-tx h2::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:5px;height:20px;background:var(--red);border-radius:3px;box-shadow:8px 0 0 rgba(255,94,75,.32)}
.mobile-tx p{margin-top:14px;font-size:16px;color:var(--tx2);max-width:560px}
.tap-mobile{display:none;flex-direction:column;gap:12px;margin-top:26px}
.qr-pc{display:flex;gap:22px}
.qr{margin:0;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px 18px 15px;box-shadow:var(--sh);text-align:center;width:200px}
.qr img{display:block;width:160px;height:160px;margin:0 auto}
.qr figcaption{margin-top:12px;font-size:15px;color:var(--ink);font-weight:600}
.qr figcaption b{display:block;font-weight:400;font-size:12.5px;color:var(--tx3);margin-top:2px}
/* 接单端手机端未开放：按钮不可点、二维码位换成占位提示，两栏版式保持不变 */
.btn-soon{background:#f2f4f7;color:var(--tx3);border:1px solid var(--line);cursor:default;pointer-events:none}
.btn-soon:hover{transform:none;box-shadow:none}
.btn-soon .soon{margin-left:10px;font-weight:400;font-size:13px;opacity:.8}
.qr-soon{display:flex;align-items:center;justify-content:center;width:160px;height:160px;margin:0 auto;background:#f2f4f7;border:1px dashed var(--line);border-radius:12px;color:var(--tx3);font-size:15px;font-weight:600;letter-spacing:2px}

/* footer */
.foot{background:#16202c;color:rgba(255,255,255,.72);padding:56px 0 0}
.foot-top{display:grid;grid-template-columns:1fr auto;gap:36px;align-items:start;padding-bottom:40px}
.foot .brand-tx b{color:#fff}
.foot .brand-tx i{color:rgba(255,255,255,.45)}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:12px;letter-spacing:.5px}
.foot-col p{font-size:14px;color:rgba(255,255,255,.62)}
.foot-col a:hover{color:var(--red)}
.foot-bar{border-top:1px solid rgba(255,255,255,.09);padding:20px 0;font-size:13px;color:rgba(255,255,255,.4)}

@media (max-width:1100px){
  .menu{display:none}
  .g3{grid-template-columns:1fr}
  .stats-in{grid-template-columns:repeat(2,1fr);gap:26px 0}
  .stats-in>div:nth-child(3)::before{display:none}
  .mobile-in{grid-template-columns:1fr;gap:34px}
  .foot-top{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .nav-in{height:62px;gap:10px}
  .nav-cta .btn{padding:0 12px;font-size:13px}
  .sec{padding:60px 0}
  .hero{padding:64px 0 72px}
  .hero h1{font-size:34px;letter-spacing:1px}
  .lead{font-size:16px}
  .sec-head h2{font-size:26px}
  .stats-in b{font-size:32px}
  .foot-top{grid-template-columns:1fr}
  .hero-btns .btn{width:100%}
  .qr-pc{display:none}
  .tap-mobile{display:flex}
  .mobile{padding:52px 0}
  .mobile-tx h2{font-size:24px}
  .tap-mobile .btn{width:100%}
}