:root{--red:#C90000;--red2:#A80000;--text:#1F2329;--muted:#5D6673;--soft:#F6F7F9;--section:#F1F3F6;--line:rgba(201,0,0,.12);--shadow:0 12px 30px rgba(18,28,45,.08)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:min(1220px,calc(100% - 32px));margin:auto}.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid rgba(201,0,0,.08)}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:74px}.logo{flex:0 0 auto}.logo img{max-height:52px;width:auto}.nav-core{display:flex;align-items:center;gap:10px;white-space:nowrap;flex-wrap:nowrap;margin-left:auto}.nav-core a{color:var(--text);background:var(--soft);border-radius:999px;padding:9px 16px;font-weight:700}.nav-core a:hover,.nav-core a.active{color:var(--red);background:rgba(201,0,0,.08)}.main-btn{display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(180deg,#F12B2B 0%,#C90000 55%,#A80000 100%);color:#fff;border-radius:999px;padding:11px 24px;font-weight:800;box-shadow:0 10px 22px rgba(201,0,0,.18)}.header-register{flex:0 0 auto}.menu-toggle{display:none;border:0;background:transparent;font-size:26px}.site-shell{display:grid;grid-template-columns:190px minmax(0,1fr);gap:28px;padding-top:24px}.side-category{position:sticky;top:96px;align-self:start;background:#fff;border:1px solid rgba(201,0,0,.10);border-radius:18px;box-shadow:var(--shadow);padding:12px;max-height:calc(100vh - 116px);overflow:auto}.side-category a{display:block;padding:9px 12px;color:var(--text);border-radius:12px;font-size:14px}.side-category a:hover,.side-category a.active{color:var(--red);background:rgba(201,0,0,.08);font-weight:700}.site-main{min-width:0}.banner-slider{margin:0 auto 34px;border-radius:22px;background:#F7F8FA;box-shadow:var(--shadow);overflow:hidden;position:relative;height:clamp(260px,31vw,360px)}.slide{position:absolute;inset:0;opacity:0;transition:opacity .45s}.slide.active{opacity:1}.banner-slider img{width:100%;height:100%;object-fit:contain;background:#F7F8FA}.slider-arrow{position:absolute;top:50%;transform:translateY(-50%);width:42px;height:42px;border-radius:50%;border:0;background:rgba(255,255,255,.9);font-size:28px;cursor:pointer;z-index:3}.prev{left:16px}.next{right:16px}.slider-dots{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);display:flex;gap:8px;z-index:3}.slider-dots button{width:9px;height:9px;border:0;border-radius:50%;background:rgba(31,35,41,.28);padding:0}.slider-dots button.active{background:var(--red)}.section{padding:30px 0}.section.alt{background:var(--soft);border-radius:24px;padding:30px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:18px;margin-bottom:18px}.eyebrow{color:var(--red);font-weight:800;letter-spacing:.08em;font-size:13px}.section-title,h1,h2,h3{color:var(--red);line-height:1.35}h1{font-size:clamp(30px,4vw,46px);margin:0 0 16px}h2{font-size:clamp(24px,3vw,34px);margin:0}.lead{font-size:18px;color:var(--muted);max-width:860px}.hero-copy,.split{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:center}.card,.zone-card,.info-card,.review-card{background:#fff;border:1px solid rgba(201,0,0,.10);box-shadow:var(--shadow);border-radius:18px;padding:22px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.summary-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;background:linear-gradient(135deg,#C90000,#8F0000);padding:18px;border-radius:20px;color:#fff}.summary-strip article{padding:12px 14px;border-right:1px solid rgba(255,255,255,.22)}.summary-strip article:last-child{border-right:0}.summary-strip h3{color:#fff;margin:0 0 6px}.summary-strip p{margin:0;font-size:14px;opacity:.9}.content-img{width:100%;height:260px;object-fit:contain;background:#F7F8FA;border-radius:16px}.product-card{overflow:hidden;padding:0}.product-card img{width:100%;height:170px;object-fit:contain;background:#F7F8FA}.product-card .body{padding:18px}.product-card h3{margin:0 0 8px}.chips{display:flex;flex-wrap:wrap;gap:10px}.chips a{padding:8px 13px;border-radius:999px;background:var(--soft);color:var(--muted)}.chips a:hover{background:rgba(201,0,0,.08);color:var(--red)}.faq details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 16px;margin-bottom:10px}.faq summary{cursor:pointer;font-weight:700;color:var(--text)}.notice{border-left:4px solid var(--red);background:#fff5f5;padding:18px 20px;border-radius:0 14px 14px 0}.site-footer{margin-top:50px;background:#11151C;color:#E7ECF3;padding:44px 0 20px}.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:30px}.footer-brand img{height:48px;width:auto;margin-bottom:14px}.site-footer h3{color:#fff}.site-footer a{display:block;color:#cfd6df;margin:7px 0}.legal{border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding-top:18px;color:#b6c0cc;font-size:14px}.mobile-drawer,.drawer-overlay,.mobile-bottom-nav{display:none}
@media(max-width:1050px){.site-shell{grid-template-columns:1fr}.side-category{display:none}.nav-core{display:none}.menu-toggle{display:block}.header-inner{gap:12px}.header-inner .logo{position:absolute;left:50%;transform:translateX(-50%)}.mobile-drawer{display:block;position:fixed;left:0;top:0;bottom:0;width:min(84vw,320px);background:#fff;z-index:201;transform:translateX(-102%);transition:.25s;overflow:auto;box-shadow:20px 0 50px rgba(0,0,0,.16)}.mobile-drawer.open{transform:translateX(0)}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid #eee}.drawer-head img{height:44px;width:auto}.drawer-head button{border:0;background:transparent;font-size:30px}.mobile-drawer nav{padding:10px}.mobile-drawer nav a{display:block;padding:12px;border-radius:10px}.mobile-drawer nav a:hover{background:rgba(201,0,0,.08);color:var(--red)}.drawer-overlay{display:block;position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:200;opacity:0;visibility:hidden;transition:.25s}.drawer-overlay.show{opacity:1;visibility:visible}.menu-open{overflow:hidden}.mobile-bottom-nav{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;left:0;right:0;bottom:0;z-index:99;background:#fff;border-top:1px solid #ddd;padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom-nav a{text-align:center;padding:11px 4px;font-size:13px;color:#5D6673}.mobile-bottom-nav a.active{color:var(--red);font-weight:800}body{padding-bottom:62px}.grid-4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:720px){.container{width:min(100% - 22px,1220px)}.header-inner{min-height:64px}.logo img{max-height:42px}.header-register{padding:8px 15px;font-size:14px}.banner-slider{height:clamp(150px,48vw,210px);border-radius:14px}.slider-arrow{width:34px;height:34px;font-size:22px}.section{padding:22px 0}.section.alt{padding:22px 14px;border-radius:18px}.hero-copy,.split,.grid-2,.grid-3,.footer-grid{grid-template-columns:1fr}.grid-4{grid-template-columns:1fr 1fr;gap:12px}.summary-strip{grid-template-columns:1fr 1fr}.summary-strip article{border-right:0;border-bottom:1px solid rgba(255,255,255,.2)}.content-img{height:210px}.product-card img{height:145px}.card,.zone-card,.info-card,.review-card{padding:17px}.lead{font-size:16px}}