:root{
  --red:#C90000;
  --red-dark:#A80000;
  --red-light:rgba(201,0,0,0.08);
  --text:#1F2329;
  --muted:#5D6673;
  --soft:#8A93A0;
  --line:rgba(201,0,0,0.12);
  --bg:#FFFFFF;
  --light:#F6F7F9;
  --section:#F1F3F6;
  --shadow:0 12px 30px rgba(18,28,45,0.08);
  --btn:linear-gradient(180deg,#F12B2B 0%,#C90000 55%,#A80000 100%);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;line-height:1.75;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
p{margin:0 0 14px;color:var(--muted)}
h1,h2,h3,.section-title{color:var(--red);line-height:1.25;margin:0 0 16px}
h1{font-size:42px;letter-spacing:-0.5px}
h2,.section-title{font-size:28px}
h3{font-size:20px}
ul{margin:0;padding:0;list-style:none}
.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:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:74px;padding:0 22px}
.logo img{max-height:52px;width:auto;display:block}
.nav-core{display:flex;align-items:center;gap:10px;white-space:nowrap;flex-wrap:nowrap;min-width:0}
.nav-core a{color:var(--text);background:var(--light);border-radius:999px;padding:10px 16px;font-weight:700;font-size:15px;transition:.2s ease}
.nav-core a:hover,.nav-core a.active{color:var(--red);background:var(--red-light)}
.header-register,.main-btn,.footer-app,.mini-btn{background:var(--btn);color:#fff;border-radius:999px;font-weight:800;box-shadow:0 10px 22px rgba(201,0,0,0.18);display:inline-flex;align-items:center;justify-content:center;border:0;cursor:pointer;white-space:nowrap}
.header-register{padding:11px 22px;min-width:86px;margin-left:auto}
.main-btn{padding:12px 24px;margin-top:8px}
.mini-btn{padding:9px 16px;font-size:14px}
.menu-toggle{display:none;width:40px;height:40px;border:0;background:#fff;border-radius:12px;box-shadow:0 8px 18px rgba(18,28,45,0.08);padding:9px;flex-shrink:0}
.menu-toggle span{display:block;height:2px;background:var(--text);border-radius:6px;margin:5px 0}
.site-shell{max-width:1320px;margin:0 auto;padding:98px 20px 0;display:grid;grid-template-columns:178px minmax(0,1fr);gap:24px;align-items:start}
.side-category{position:sticky;top:96px;background:#fff;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;z-index:20}
.side-category a{color:var(--text);border-radius:12px;padding:10px 12px;font-weight:700;font-size:14px;transition:.2s ease}
.side-category a:hover,.side-category a.active{color:var(--red);background:var(--red-light)}
.site-main{min-width:0;padding-bottom:46px}
.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,31vw,360px)}
.slider-track,.slide{width:100%;height:100%}
.slide{position:absolute;inset:0;opacity:0;transition:opacity .55s ease;background:#F7F8FA}
.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%;transform:translateY(-50%);z-index:5;width:42px;height:42px;border:0;border-radius:50%;background:rgba(255,255,255,.86);box-shadow:0 8px 24px rgba(18,28,45,.18);cursor:pointer}
.slider-arrow:before{content:"";display:block;width:12px;height:12px;border-top:3px solid var(--red);border-left:3px solid var(--red);position:absolute;top:14px}
.slider-arrow.prev{left:16px}.slider-arrow.next{right:16px}
.slider-arrow.prev:before{transform:rotate(-45deg);left:16px}.slider-arrow.next:before{transform:rotate(135deg);right:16px}
.slider-dots{position:absolute;bottom:14px;left:0;right:0;z-index:6;display:flex;justify-content:center;gap:9px}
.slider-dot{width:9px;height:9px;border-radius:50%;border:0;background:rgba(31,35,41,.26);padding:0;cursor:pointer}
.slider-dot.active{background:var(--red);width:26px;border-radius:999px}
.banner-caption,.banner-text,.slide-title,.slide-desc,.slide-content,.slide-card,.banner-card{display:none!important}
.section{margin:0 0 34px;padding:34px;border-radius:24px;background:#fff;border:1px solid rgba(201,0,0,0.08);box-shadow:var(--shadow)}
.section.soft{background:var(--light);border-color:rgba(201,0,0,0.08)}
.section.gray{background:var(--section)}
.lead{font-size:18px;color:#3B424D;max-width:960px}
.two-col{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center}
.three-col{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.four-col{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.card,.zone-card,.info-card,.review-card,.faq-item,.stat-card,.notice-card{background:#fff;border:1px solid rgba(201,0,0,0.10);box-shadow:var(--shadow);border-radius:18px;padding:22px}
.card h3,.zone-card h3,.info-card h3,.review-card h3,.faq-item h3,.notice-card h3{margin-bottom:10px}
.kicker{display:inline-flex;align-items:center;gap:6px;background:rgba(201,0,0,0.08);color:var(--red);border-radius:999px;padding:6px 12px;font-weight:800;font-size:13px;margin-bottom:12px}
.stat-strip{background:linear-gradient(180deg,#F12B2B 0%,#C90000 55%,#A80000 100%);border-radius:24px;padding:26px;box-shadow:0 14px 32px rgba(201,0,0,.18);display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:34px}
.stat-card{background:rgba(255,255,255,.96);box-shadow:none;border:1px solid rgba(255,255,255,.55)}
.stat-card strong{display:block;color:var(--red);font-size:20px;margin-bottom:6px}
.zone-card img,.info-card img,.content-img{width:100%;height:auto;max-height:230px;object-fit:contain;background:#F7F8FA;border-radius:16px;margin-bottom:16px}
.product-card img{width:100%;height:170px;object-fit:contain;background:#F7F8FA;border-radius:16px;margin-bottom:16px}
.image-panel img{width:100%;max-height:280px;object-fit:contain;background:#F7F8FA;border-radius:20px;box-shadow:var(--shadow);border:1px solid rgba(201,0,0,0.08)}
.horizontal-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;overflow:visible}
.combo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.review-card p{font-size:15px;color:#3D4652}
.review-card strong{display:block;color:var(--red);margin-top:12px}
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 0}
.tag-list a,.tag-list span{background:var(--light);border:1px solid rgba(201,0,0,0.10);color:#303845;border-radius:999px;padding:8px 12px;font-weight:700;font-size:14px}
.notice-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.notice-card p{margin:0;color:#4B5563}
.page-hero{margin:24px 0 30px;padding:38px;border-radius:26px;background:linear-gradient(180deg,#fff 0%,#F6F7F9 100%);border:1px solid rgba(201,0,0,0.10);box-shadow:var(--shadow)}
.page-hero .lead{max-width:880px}
.content-block{margin-bottom:28px}
.content-block:last-child{margin-bottom:0}
.steps{counter-reset:item;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.step{background:#fff;border:1px solid rgba(201,0,0,0.10);border-radius:18px;padding:22px;box-shadow:var(--shadow)}
.step:before{counter-increment:item;content:counter(item,decimal-leading-zero);display:inline-flex;width:38px;height:38px;align-items:center;justify-content:center;border-radius:50%;background:rgba(201,0,0,0.08);color:var(--red);font-weight:900;margin-bottom:12px}
.footer-inner{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:1fr 1.7fr;gap:42px;padding:44px 22px 30px}
.site-footer{background:#11151C;color:#E7ECF3}
.site-footer p{color:#C9D3E1}.footer-logo img{max-height:48px;width:auto;margin-bottom:16px}.footer-app{padding:10px 18px;margin-top:8px}
.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.footer-links h3{color:#fff;font-size:17px}.footer-links a{display:block;color:#C9D3E1;margin:8px 0}.footer-links a:hover{color:#fff}
.footer-notice{border-top:1px solid rgba(255,255,255,0.10);max-width:1180px;margin:0 auto;padding:18px 22px 28px}.footer-notice p{font-size:14px;margin:0;color:#D9E0EA}
.drawer-overlay{display:none}.mobile-drawer{display:none}.mobile-bottom-nav{display:none}.no-scroll{overflow:hidden}
@media (max-width:1120px){.site-shell{grid-template-columns:1fr;max-width:1180px}.side-category{display:none}.nav-core{gap:6px}.nav-core a{padding:9px 12px;font-size:14px}.two-col{grid-template-columns:1fr}.horizontal-cards,.four-col{grid-template-columns:repeat(2,1fr)}}
@media (max-width:760px){body{padding-bottom:68px}.site-header{min-height:64px}.header-inner{min-height:64px;padding:0 14px;gap:10px;position:relative}.menu-toggle{display:block}.nav-core{display:none}.logo{position:absolute;left:50%;transform:translateX(-50%)}.logo img{max-height:42px}.header-register{padding:9px 16px;min-width:68px;font-size:14px;margin-left:auto}.site-shell{padding:78px 14px 0;display:block}.site-main{padding-bottom:28px}.banner-slider{margin:12px 0 24px;border-radius:16px;height:clamp(150px,48vw,210px);min-height:150px;max-height:210px}.slider-arrow{width:34px;height:34px}.slider-arrow:before{width:10px;height:10px;border-width:2px;top:12px}.slider-arrow.prev{left:8px}.slider-arrow.next{right:8px}.slider-arrow.prev:before{left:13px}.slider-arrow.next:before{right:13px}.section{padding:22px;border-radius:18px;margin-bottom:22px}.page-hero{padding:24px;border-radius:20px;margin:12px 0 22px}h1{font-size:30px}h2,.section-title{font-size:23px}.lead{font-size:16px}.three-col,.four-col,.horizontal-cards,.combo-grid,.review-grid,.faq-grid,.notice-list,.steps,.stat-strip{grid-template-columns:1fr}.stat-strip{padding:18px;border-radius:18px}.zone-card img,.info-card img,.content-img{max-height:190px}.product-card img{height:145px}.image-panel img{max-height:210px}.drawer-overlay{display:block;position:fixed;inset:0;background:rgba(0,0,0,.36);z-index:1190;opacity:0;visibility:hidden;transition:.22s ease}.drawer-overlay.show{opacity:1;visibility:visible}.mobile-drawer{display:block;position:fixed;top:0;bottom:0;left:0;width:82vw;max-width:320px;background:#fff;z-index:1200;transform:translateX(-102%);transition:.24s ease;box-shadow:16px 0 40px rgba(18,28,45,.22);overflow-y:auto}.mobile-drawer.open{transform:translateX(0)}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid rgba(201,0,0,.10)}.drawer-logo img{max-height:42px;width:auto}.drawer-close{width:36px;height:36px;border:0;border-radius:12px;background:var(--light);font-size:26px;line-height:1;color:var(--text)}.drawer-links{display:grid;grid-template-columns:1fr;gap:8px;padding:14px}.drawer-links a{padding:12px 14px;border-radius:12px;background:#fff;color:var(--text);font-weight:700;border:1px solid rgba(201,0,0,.08)}.drawer-links a.active,.drawer-links a:hover{background:var(--red-light);color:var(--red)}.mobile-bottom-nav{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;left:0;right:0;bottom:0;height:62px;background:#fff;border-top:1px solid #E5E8EE;z-index:1100;box-shadow:0 -8px 20px rgba(18,28,45,.06)}.mobile-bottom-nav a{display:flex;align-items:center;justify-content:center;color:#4B5563;font-weight:800;font-size:14px}.mobile-bottom-nav a:before{content:"";width:6px;height:6px;border-radius:50%;background:#CCD3DD;margin-right:6px}.mobile-bottom-nav a.active{color:var(--red)}.mobile-bottom-nav a.active:before{background:var(--red)}.footer-inner{grid-template-columns:1fr;padding:34px 18px 20px}.footer-links{grid-template-columns:1fr}.footer-notice{padding:16px 18px 26px}}
@media (max-width:420px){.section{padding:18px}.card,.zone-card,.info-card,.review-card,.faq-item,.stat-card,.notice-card,.step{padding:18px}.header-register{padding:8px 13px}.logo img{max-height:38px}}