:root{
  --red:#C90000;
  --red-dark:#A80000;
  --red-bright:#F12B2B;
  --ink:#1F2329;
  --text:#5D6673;
  --muted:#8A93A0;
  --line:rgba(201,0,0,0.12);
  --soft:#F6F7F9;
  --section:#F1F3F6;
  --card:#FFFFFF;
  --shadow:0 12px 30px rgba(18,28,45,0.08);
  --radius:18px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#FFFFFF;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;line-height:1.75;padding-top:76px;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,0.96);backdrop-filter:blur(10px);border-bottom:1px solid rgba(201,0,0,0.08)}
.header-inner{max-width:1320px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:74px;padding:0 22px}
.logo{display:flex;align-items:center;flex:0 0 auto}
.logo img{max-height:52px;width:auto;display:block}
.nav-core{display:flex;align-items:center;justify-content:center;gap:10px;white-space:nowrap;flex-wrap:nowrap;min-width:0;flex:1}
.nav-core a{color:var(--ink);background:var(--soft);border-radius:999px;padding:10px 16px;font-size:15px;font-weight:700;transition:.2s ease}
.nav-core a:hover,.nav-core a.active{color:var(--red);background:rgba(201,0,0,0.08)}
.register-btn,.main-btn{display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(180deg,#F12B2B 0%,#C90000 55%,#A80000 100%);color:#FFFFFF;border-radius:999px;padding:11px 22px;font-weight:800;box-shadow:0 10px 20px rgba(201,0,0,0.2);border:0;white-space:nowrap;line-height:1.2}
.register-btn{flex:0 0 auto;min-width:82px}
.main-btn:hover,.register-btn:hover{transform:translateY(-1px);box-shadow:0 14px 24px rgba(201,0,0,0.24)}
.ghost-btn{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:10px 20px;background:#FFFFFF;color:var(--red);border:1px solid rgba(201,0,0,0.2);font-weight:800}
.menu-toggle{display:none;background:#FFFFFF;border:1px solid rgba(201,0,0,0.16);width:42px;height:42px;border-radius:13px;align-items:center;justify-content:center;flex-direction:column;gap:5px;flex:0 0 auto}
.menu-toggle span{width:20px;height:2px;background:var(--ink);border-radius:99px}
.site-shell{max-width:1320px;margin:0 auto;display:grid;grid-template-columns:174px minmax(0,1fr);gap:24px;padding:22px 22px 0}
.site-main{min-width:0}
.side-category{position:sticky;top:96px;align-self:start;background:#FFFFFF;border:1px solid rgba(201,0,0,0.10);border-radius:18px;box-shadow:var(--shadow);padding:12px;display:flex;flex-direction:column;gap:6px;max-height:calc(100vh - 120px);overflow:auto}
.side-category a{color:var(--ink);border-radius:12px;padding:9px 12px;font-size:14px;font-weight:700;transition:.2s ease}
.side-category a:hover,.side-category a.active{color:var(--red);background:rgba(201,0,0,0.08)}
.banner-slider{max-width:1180px;margin:24px auto 34px;border-radius:22px;background:#F7F8FA;box-shadow:var(--shadow);overflow:hidden;position:relative;height:clamp(260px,30vw,360px)}
.banner-track,.banner-slide{height:100%}
.banner-slide{position:absolute;inset:0;opacity:0;transition:opacity .45s ease;background:#F7F8FA}
.banner-slide.active{opacity:1;z-index:1}
.banner-slider img{width:100%;height:100%;object-fit:contain;background:#F7F8FA}
.slider-arrow{position:absolute;top:50%;z-index:3;transform:translateY(-50%);width:42px;height:42px;border-radius:50%;border:1px solid rgba(255,255,255,0.8);background:rgba(17,21,28,0.32);color:#FFFFFF;cursor:pointer;display:flex;align-items:center;justify-content:center}
.slider-prev{left:14px}.slider-next{right:14px}
.slider-prev:before{content:"‹";font-size:34px;line-height:1}.slider-next:before{content:"›";font-size:34px;line-height:1}
.slider-dots{position:absolute;left:0;right:0;bottom:14px;z-index:4;display:flex;justify-content:center;gap:8px}
.slider-dot{width:9px;height:9px;border-radius:999px;border:0;background:rgba(31,35,41,0.32);padding:0;cursor:pointer;transition:.2s ease}
.slider-dot.active{width:26px;background:var(--red)}
.banner-caption,.banner-text,.slide-title,.slide-desc,.slide-content,.slide-card,.banner-card{display:none!important}
.section{margin:0 0 28px;padding:30px;background:#FFFFFF;border:1px solid rgba(201,0,0,0.08);border-radius:24px;box-shadow:var(--shadow)}
.section.alt{background:var(--soft);box-shadow:none}
.section.compact{padding:24px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:20px}
h1,h2,h3,.section-title{color:var(--red);line-height:1.25;margin-top:0}
h1{font-size:clamp(30px,4vw,48px);margin-bottom:14px}
h2,.section-title{font-size:clamp(24px,2.5vw,34px);margin-bottom:10px}
h3{font-size:20px;margin-bottom:8px}
p{margin:0 0 12px;color:var(--text)}
.lead{font-size:18px;color:#3D4652;max-width:900px}
.eyebrow{display:inline-flex;color:var(--red);font-weight:900;background:rgba(201,0,0,0.08);border:1px solid rgba(201,0,0,0.12);padding:5px 12px;border-radius:999px;margin-bottom:14px;font-size:13px;letter-spacing:.04em}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}
.quick-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:22px;align-items:stretch}
.quick-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.quick-links a{background:var(--soft);border:1px solid rgba(201,0,0,0.08);border-radius:16px;padding:16px;font-weight:900;color:var(--ink)}
.quick-links a span{display:block;color:var(--muted);font-weight:600;font-size:13px;margin-top:5px}
.metric-band{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;background:linear-gradient(180deg,#F12B2B 0%,#C90000 58%,#A80000 100%);border-radius:24px;padding:24px;margin-bottom:28px;box-shadow:0 16px 34px rgba(201,0,0,0.18)}
.metric-card{background:rgba(255,255,255,0.12);border:1px solid rgba(255,255,255,0.24);border-radius:18px;padding:18px;color:#FFFFFF}
.metric-card strong{display:block;font-size:24px;margin-bottom:6px}.metric-card p{color:rgba(255,255,255,0.9);font-size:14px;margin:0}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.card,.zone-card,.info-card,.review-card,.product-card,.faq-card,.step-card{background:#FFFFFF;border:1px solid rgba(201,0,0,0.10);box-shadow:var(--shadow);border-radius:18px;padding:18px;overflow:hidden}
.card h3,.zone-card h3,.info-card h3,.review-card h3,.product-card h3,.faq-card h3,.step-card h3{margin-top:0;color:var(--red)}
.zone-card img,.info-card img,.content-img{width:100%;height:clamp(180px,22vw,250px);object-fit:contain;background:#F7F8FA;border-radius:14px;margin-bottom:14px}
.product-card img{width:100%;height:170px;object-fit:contain;background:#F7F8FA;border-radius:14px;margin-bottom:14px}
.card-list{display:grid;gap:12px;margin:0;padding:0;list-style:none}
.card-list li{padding:14px 14px 14px 40px;border-radius:14px;background:var(--soft);position:relative;color:var(--text)}
.card-list li:before{content:"";position:absolute;left:16px;top:22px;width:9px;height:9px;border-radius:50%;background:var(--red);box-shadow:0 0 0 5px rgba(201,0,0,0.08)}
.split-block{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(280px,.9fr);gap:24px;align-items:center}
.split-block.reverse{grid-template-columns:minmax(280px,.9fr) minmax(0,1.1fr)}
.notice-strip{border:1px solid rgba(201,0,0,0.14);background:linear-gradient(180deg,#FFFFFF 0%,#FFF7F7 100%);border-radius:18px;padding:18px;color:var(--text)}
.notice-strip strong{color:var(--red)}
.tag-row{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}
.tag-row span{border:1px solid rgba(201,0,0,0.14);color:var(--red);background:rgba(201,0,0,0.06);padding:5px 10px;border-radius:999px;font-size:13px;font-weight:800}
.page-hero{margin:24px 0 28px;padding:34px;background:linear-gradient(180deg,#FFFFFF 0%,#F6F7F9 100%);border:1px solid rgba(201,0,0,0.08);border-radius:26px;box-shadow:var(--shadow)}
.page-hero p{max-width:900px}
.step-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;counter-reset:step}
.step-card{position:relative;padding-top:52px}.step-card:before{counter-increment:step;content:counter(step);position:absolute;left:18px;top:16px;width:28px;height:28px;border-radius:50%;background:var(--red);color:#FFFFFF;display:flex;align-items:center;justify-content:center;font-weight:900}
.review-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.review-card p{font-style:normal}.review-card strong{display:block;color:var(--ink);margin-bottom:6px}
.faq-list{display:grid;gap:12px}.faq-card p{margin-bottom:0}
.site-footer{background:#11151C;color:#E7ECF3;margin-top:34px;padding:42px 22px 32px}
.footer-inner{max-width:1320px;margin:0 auto;display:grid;grid-template-columns:.8fr 1.2fr;gap:30px}.footer-brand img{max-height:54px;width:auto;margin-bottom:14px}.footer-brand p,.footer-links p{color:#C7D0DC}.footer-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.footer-links h3{color:#FFFFFF;font-size:17px}.footer-links a{display:block;color:#E7ECF3;margin:8px 0}.footer-links a:hover{color:#FFFFFF;text-decoration:underline}
.drawer-mask{position:fixed;inset:0;background:rgba(17,21,28,0.38);z-index:1200;opacity:0;pointer-events:none;transition:.22s ease}.mobile-drawer{position:fixed;top:0;bottom:0;left:0;width:82vw;max-width:320px;background:#FFFFFF;z-index:1210;transform:translateX(-102%);transition:.25s ease;box-shadow:12px 0 30px rgba(18,28,45,0.18);display:flex;flex-direction:column}.drawer-open{overflow:hidden}.drawer-open .drawer-mask{opacity:1;pointer-events:auto}.drawer-open .mobile-drawer{transform:translateX(0)}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid rgba(201,0,0,0.10)}.drawer-logo img{max-height:48px;width:auto}.drawer-close{border:0;background:var(--soft);width:38px;height:38px;border-radius:12px;font-size:28px;line-height:1;color:var(--ink)}.drawer-nav{padding:12px;overflow:auto}.drawer-nav a{display:block;padding:12px 14px;border-radius:13px;color:var(--ink);font-weight:800}.drawer-nav a.active,.drawer-nav a:hover{background:rgba(201,0,0,0.08);color:var(--red)}.mobile-bottom-nav{display:none}
@media (max-width:1180px){.site-shell{display:block;max-width:980px}.side-category{display:none}.nav-core{gap:6px}.nav-core a{padding:9px 12px;font-size:14px}.quick-grid,.split-block,.split-block.reverse{grid-template-columns:1fr}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.metric-band{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:760px){body{padding-top:64px;padding-bottom:74px}.header-inner{min-height:64px;padding:0 12px;gap:10px;position:relative}.menu-toggle{display:flex}.nav-core{display:none}.logo{position:absolute;left:50%;transform:translateX(-50%)}.logo img{max-height:44px}.register-btn{min-width:68px;padding:9px 14px;font-size:14px;margin-left:auto}.site-shell{padding:14px 12px 0}.banner-slider{height:clamp(150px,48vw,210px);border-radius:16px;margin:12px auto 20px}.slider-arrow{width:34px;height:34px}.slider-prev{left:8px}.slider-next{right:8px}.section,.page-hero{padding:20px;border-radius:20px;margin-bottom:18px}.section-head{display:block}.quick-links,.grid-2,.grid-3,.grid-4,.review-grid,.step-grid{grid-template-columns:1fr}.metric-band{grid-template-columns:1fr;padding:18px;border-radius:20px}.zone-card img,.info-card img,.content-img{height:190px}.product-card img{height:150px}.hero-actions a{width:100%}.footer-inner,.footer-links{grid-template-columns:1fr}.site-footer{padding-bottom:92px}.mobile-bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:1100;background:#FFFFFF;border-top:1px solid rgba(31,35,41,0.12);display:grid;grid-template-columns:repeat(4,1fr);padding:6px 0 max(6px,env(safe-area-inset-bottom));box-shadow:0 -8px 20px rgba(18,28,45,0.07)}.mobile-bottom-nav a{display:flex;align-items:center;justify-content:center;gap:2px;flex-direction:column;color:var(--muted);font-size:12px;font-weight:800}.mobile-bottom-nav a span{font-size:18px;line-height:1}.mobile-bottom-nav a.active{color:var(--red)}}