:root{
  --red:#74121f;--red2:#ad2032;--gold:#d2a93c;--ink:#242424;--muted:#737373;
  --paper:#fff;--bg:#f5f3ed;--line:#e7e2d9;--soft:#f8f6f1;
  --shadow:0 18px 48px rgba(44,27,29,.09);--radius:24px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;color:var(--ink);background:var(--bg);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif
}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
button{font:inherit}
.wrap{width:min(1180px,calc(100% - 28px));margin:auto}
.header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.93);
  backdrop-filter:blur(15px);border-bottom:1px solid rgba(0,0,0,.06)
}
.header-inner{height:72px;display:flex;align-items:center;justify-content:space-between;gap:22px}
.brand{display:flex;align-items:center;gap:11px}
.brand-logo,.brand-fallback{
  width:45px;height:45px;border-radius:14px;object-fit:cover;background:#fff;
  box-shadow:0 8px 22px rgba(0,0,0,.1)
}
.brand-fallback{
  display:none;align-items:center;justify-content:center;color:#fff;font-weight:900;
  background:linear-gradient(145deg,#1d1d1d,var(--red))
}
.brand strong{display:block;font-size:20px}
.brand small{display:block;color:var(--muted);font-size:10px;margin-top:2px;letter-spacing:.8px}
.nav{display:flex;align-items:center;gap:25px;font-size:14px;font-weight:800}
.nav a:hover{color:var(--red2)}
.primary,.secondary{
  display:inline-flex;align-items:center;justify-content:center;border-radius:999px;
  padding:12px 19px;font-weight:900
}
.primary{background:linear-gradient(90deg,var(--red),var(--red2));color:#fff;box-shadow:0 9px 24px rgba(129,19,34,.2)}
.secondary{background:#f0ece5;color:#3a3a3a}
.hero{padding:36px 0 16px}
.hero-card{
  min-height:470px;border-radius:34px;overflow:hidden;color:#fff;
  background:
    radial-gradient(circle at 82% 20%,rgba(211,169,60,.2),transparent 23%),
    radial-gradient(circle at 10% 12%,rgba(255,255,255,.12),transparent 25%),
    linear-gradient(135deg,#181818 0%,#36191d 48%,#7d1423 100%);
  box-shadow:0 26px 64px rgba(76,25,32,.19)
}
.hero-grid{min-height:470px;display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center;padding:48px}
.eyebrow{
  display:inline-block;padding:7px 11px;border-radius:999px;
  border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.08);
  color:#f2d49a;font-size:12px;font-weight:900;letter-spacing:1px
}
.hero h1{font-size:clamp(40px,6vw,68px);line-height:1.05;letter-spacing:-2px;margin:18px 0 13px}
.hero h1 span{color:#ffd36d}
.hero p{max-width:570px;margin:0;color:rgba(255,255,255,.78);line-height:1.85;font-size:15px}
.hero-actions{display:flex;flex-wrap:wrap;gap:11px;margin-top:27px}
.hero-actions .secondary{background:rgba(255,255,255,.11);color:#fff;border:1px solid rgba(255,255,255,.2)}
.hero-points{display:flex;flex-wrap:wrap;gap:18px;margin-top:26px;color:rgba(255,255,255,.7);font-size:13px}
.hero-points span:before{content:"✓";color:#ffd36d;font-weight:900;margin-right:6px}
.hero-collage{position:relative;min-height:360px}
.hero-collage img{
  position:absolute;width:62%;border-radius:22px;border:1px solid rgba(255,255,255,.2);
  box-shadow:0 24px 44px rgba(0,0,0,.35)
}
.hero-collage img:first-child{right:3%;top:1%;transform:rotate(5deg)}
.hero-collage img:last-child{left:2%;bottom:0;transform:rotate(-7deg)}
.assurance{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:25px auto 5px}
.assurance-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:17px;box-shadow:0 8px 26px rgba(0,0,0,.035)}
.assurance-card strong{display:block;font-size:15px}
.assurance-card span{display:block;color:var(--muted);font-size:12px;line-height:1.65;margin-top:6px}
.section{padding:55px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:23px}
.section-head h2{font-size:34px;margin:0}
.section-head p{margin:8px 0 0;color:var(--muted)}
.products{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:17px}
.product-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:0 10px 28px rgba(0,0,0,.04);transition:.2s ease
}
.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.product-img{position:relative;aspect-ratio:1/1;background:#ece9e1;overflow:hidden}
.product-img img{width:100%;height:100%;object-fit:cover}
.tag{
  position:absolute;left:12px;top:12px;background:rgba(255,255,255,.94);
  color:var(--red2);font-size:11px;font-weight:900;padding:6px 9px;border-radius:999px;
  box-shadow:0 5px 13px rgba(0,0,0,.08)
}
.product-body{padding:15px}
.product-title{font-weight:900;font-size:15px;line-height:1.5;min-height:68px}
.product-subtitle{color:var(--muted);font-size:12px;margin-top:5px}
.product-bottom{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:14px}
.price{color:var(--red2);font-size:21px;font-weight:950;white-space:nowrap}
.price small{font-size:12px;margin-right:2px}
.detail-link{padding:9px 11px;border-radius:12px;background:#f7e9eb;color:var(--red2);font-size:12px;font-weight:900}
.brand-section{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}
.info-panel{background:#fff;border:1px solid var(--line);border-radius:28px;padding:31px;box-shadow:0 11px 30px rgba(0,0,0,.04)}
.info-panel.dark{background:linear-gradient(145deg,#1c1c1c,#751421);color:#fff;border:0}
.info-panel h3{font-size:27px;margin:0 0 12px}
.info-panel p{margin:0;color:var(--muted);line-height:1.9}
.info-panel.dark p{color:rgba(255,255,255,.75)}
.tick-list{display:grid;gap:11px;margin-top:19px;font-size:14px;font-weight:750}
.tick-list div:before{content:"";display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--red2);margin-right:9px}
.info-panel.dark .tick-list div:before{background:#ffd36d}
.zone{
  margin-top:18px;padding:32px;border-radius:28px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:22px;
  background:linear-gradient(135deg,#791522,#242424);box-shadow:0 22px 52px rgba(64,20,27,.17)
}
.zone h3{font-size:29px;margin:0}.zone p{margin:8px 0 0;color:rgba(255,255,255,.75)}
.footer{background:#171717;color:#fff;margin-top:25px}
.footer-inner{padding:41px 0 23px}
.footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:35px}
.footer h4{margin:0 0 12px}
.footer p,.footer a{color:rgba(255,255,255,.62);font-size:13px;line-height:1.85;margin:0}
.footer-links{display:grid;gap:7px}
.copy{border-top:1px solid rgba(255,255,255,.1);margin-top:28px;padding-top:18px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;color:rgba(255,255,255,.45);font-size:12px}
.page-hero{padding:33px 0 20px}
.breadcrumb{color:var(--muted);font-size:13px;margin-bottom:15px}
.detail-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:34px;align-items:start}
.detail-image{background:#fff;border:1px solid var(--line);border-radius:28px;overflow:hidden;box-shadow:var(--shadow)}
.detail-image img{width:100%;height:auto}
.detail-panel{background:#fff;border:1px solid var(--line);border-radius:28px;padding:31px;box-shadow:0 13px 34px rgba(0,0,0,.04)}
.detail-panel h1{font-size:30px;line-height:1.35;margin:0}
.detail-sub{color:var(--muted);margin-top:9px}
.detail-price{color:var(--red2);font-weight:950;font-size:35px;margin:23px 0}
.detail-price small{font-size:16px;margin-right:3px}
.detail-table{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:9px 0;margin:21px 0}
.detail-row{display:grid;grid-template-columns:90px 1fr;gap:12px;padding:10px 0;font-size:14px}
.detail-row span:first-child{color:var(--muted)}
.notice-box{background:#faf5ea;border:1px solid #ead9b7;border-radius:17px;padding:15px;color:#6d5729;font-size:13px;line-height:1.8}
.detail-actions{display:flex;gap:11px;margin-top:22px}
.simple-page{padding:42px 0 65px}
.simple-card{background:#fff;border:1px solid var(--line);border-radius:28px;padding:34px;box-shadow:0 12px 32px rgba(0,0,0,.045)}
.simple-card h1{margin:0 0 22px;font-size:32px}
.simple-card h2{font-size:20px;margin:27px 0 9px}
.simple-card p,.simple-card li{color:#555;line-height:1.9;font-size:14px}
.mobile-nav{display:none}
@media(max-width:980px){
  .nav{display:none}.hero-grid{grid-template-columns:1fr;padding:40px}.hero-collage{min-height:330px}
  .products{grid-template-columns:repeat(2,minmax(0,1fr))}.assurance{grid-template-columns:repeat(2,1fr)}
  .brand-section,.detail-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:620px){
  body{padding-bottom:64px}.wrap{width:calc(100% - 24px)}.header-inner{height:63px}
  .brand-logo,.brand-fallback{width:40px;height:40px}.brand strong{font-size:17px}.brand small{display:none}
  .header .primary{padding:9px 12px;font-size:12px}.hero{padding-top:17px}.hero-card{border-radius:25px}
  .hero-grid{padding:27px 21px 24px;min-height:auto;gap:14px}.hero h1{font-size:41px;letter-spacing:-1.3px}
  .hero p{font-size:14px}.hero-actions .primary,.hero-actions .secondary{width:100%}
  .hero-collage{min-height:280px}.hero-collage img{width:65%}
  .assurance{grid-template-columns:1fr 1fr;gap:9px}.assurance-card{padding:13px}
  .section{padding:43px 0}.section-head h2{font-size:28px}.products{grid-template-columns:1fr;gap:13px}
  .product-card{display:grid;grid-template-columns:128px 1fr;border-radius:19px}.product-img{aspect-ratio:auto;min-height:154px}
  .product-body{padding:13px}.product-title{min-height:auto;font-size:14px}.product-bottom{display:block}.detail-link{display:inline-flex;margin-top:10px}
  .brand-section{grid-template-columns:1fr}.info-panel{padding:24px}.zone{display:block;padding:25px}.zone .primary{width:100%;margin-top:16px}
  .footer-grid{grid-template-columns:1fr}.detail-panel{padding:24px}.detail-panel h1{font-size:25px}.detail-actions{display:grid}
  .mobile-nav{
    display:grid;position:fixed;left:0;right:0;bottom:0;z-index:70;height:64px;
    grid-template-columns:repeat(4,1fr);background:rgba(255,255,255,.98);
    border-top:1px solid rgba(0,0,0,.07);backdrop-filter:blur(11px)
  }
  .mobile-nav a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;color:#777;font-size:10px;font-weight:850}
  .mobile-nav b{font-size:15px;color:var(--red2)}
}


/* M3 ordinary RMB checkout v1 */
.product-bottom{align-items:flex-end}
.product-actions{display:flex;gap:7px;align-items:center}
.buy-link{
  padding:9px 12px;border-radius:12px;background:linear-gradient(90deg,var(--red),var(--red2));
  color:#fff;font-size:12px;font-weight:900;white-space:nowrap;box-shadow:0 7px 16px rgba(129,19,34,.16)
}
.checkout-page{padding:38px 0 66px}
.checkout-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:22px;align-items:start}
.checkout-card,.summary-card,.status-card{
  background:#fff;border:1px solid var(--line);border-radius:28px;padding:29px;
  box-shadow:0 13px 36px rgba(0,0,0,.045)
}
.checkout-card h1,.status-card h1{margin:0 0 22px;font-size:31px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}
.form-group{display:grid;gap:7px;margin-bottom:15px}
.form-group.full{grid-column:1/-1}
.form-group label{font-size:13px;font-weight:850;color:#444}
.form-control{
  width:100%;border:1px solid #dcd7cd;border-radius:14px;padding:13px 14px;
  background:#fff;color:#222;outline:none;font:inherit
}
.form-control:focus{border-color:#b44b59;box-shadow:0 0 0 3px rgba(173,32,50,.08)}
textarea.form-control{min-height:90px;resize:vertical}
.form-help{font-size:12px;color:var(--muted);line-height:1.65}
.form-error{display:none;margin:12px 0;padding:12px 14px;border-radius:13px;background:#fff0f1;color:#9b1d2c;font-size:13px}
.form-error.show{display:block}
.agree-row{display:flex;gap:9px;align-items:flex-start;color:#555;font-size:12px;line-height:1.65;margin:14px 0}
.pay-button{
  width:100%;border:0;border-radius:16px;padding:15px 18px;background:linear-gradient(90deg,var(--red),var(--red2));
  color:#fff;font-size:16px;font-weight:950;cursor:pointer;box-shadow:0 12px 26px rgba(129,19,34,.19)
}
.pay-button:disabled{opacity:.55;cursor:not-allowed}
.summary-product{display:grid;grid-template-columns:106px 1fr;gap:15px;align-items:center}
.summary-product img{width:106px;height:106px;object-fit:cover;border-radius:17px;background:#eee}
.summary-product h2{font-size:17px;line-height:1.45;margin:0}
.summary-product p{font-size:12px;color:var(--muted);margin:7px 0 0}
.summary-lines{border-top:1px solid var(--line);margin-top:19px;padding-top:12px}
.summary-line{display:flex;justify-content:space-between;gap:18px;padding:9px 0;font-size:14px}
.summary-line.total{border-top:1px dashed #ddd3c6;margin-top:7px;padding-top:16px;font-weight:950}
.summary-line.total strong{font-size:23px;color:var(--red2)}
.quantity-row{display:flex;align-items:center;gap:9px}
.quantity-row input{width:88px}
.secure-note{background:#faf5ea;border:1px solid #ead9b7;border-radius:15px;padding:13px;color:#715a2e;font-size:12px;line-height:1.75;margin-top:16px}
.status-icon{
  width:76px;height:76px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  margin:0 auto 18px;font-size:35px;font-weight:950;background:#f4e8ea;color:var(--red2)
}
.status-icon.success{background:#eaf7ef;color:#23804a}
.status-center{text-align:center;max-width:680px;margin:auto}
.status-center h1{margin-bottom:9px}
.status-center p{color:var(--muted);line-height:1.8}
.status-details{margin:24px auto 0;max-width:620px;border-top:1px solid var(--line);padding-top:13px;text-align:left}
.status-actions{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin-top:22px}
.query-result{display:none;margin-top:21px}
.query-result.show{display:block}
.loading-bar{height:5px;background:#eee8df;border-radius:99px;overflow:hidden;margin:17px 0}
.loading-bar:before{content:"";display:block;width:35%;height:100%;background:var(--red2);animation:m3loading 1.2s infinite ease-in-out}
@keyframes m3loading{0%{transform:translateX(-120%)}100%{transform:translateX(340%)}}
.service-box{display:none;margin-top:14px;padding:16px;border-radius:16px;background:var(--soft);border:1px solid var(--line)}
.service-box.show{display:block}
.service-qr{max-width:190px;border-radius:16px;margin-top:12px}
@media(max-width:820px){
  .checkout-grid{grid-template-columns:1fr}.summary-card{order:-1}.form-grid{grid-template-columns:1fr}
}
@media(max-width:620px){
  .product-actions{margin-top:10px}.product-bottom{display:block}.buy-link,.detail-link{display:inline-flex}
  .checkout-page{padding-top:22px}.checkout-card,.summary-card,.status-card{padding:22px;border-radius:22px}
  .checkout-card h1,.status-card h1{font-size:26px}.summary-product{grid-template-columns:88px 1fr}.summary-product img{width:88px;height:88px}
}