:root{
  --red:#C90000;--red-dark:#A80000;--red-soft:rgba(201,0,0,.08);--ink:#1F2329;
  --muted:#5D6673;--soft:#F6F7F9;--section:#F1F3F6;--border:rgba(201,0,0,.12);
  --shadow:0 12px 30px rgba(18,28,45,.08);--radius:18px;--header-h:74px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.75;padding-top:var(--header-h)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font:inherit}
body.drawer-open{overflow:hidden}
.site-header{position:fixed;left:0;right:0;top:0;z-index:1000;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid rgba(201,0,0,.08)}
.header-inner{max-width:1380px;margin:auto;min-height:74px;padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:flex;align-items:center;flex:0 0 auto}.logo img{max-height:52px;width:auto}
.nav-core{display:flex;align-items:center;justify-content:center;gap:10px;white-space:nowrap;flex-wrap:nowrap;min-width:0}
.nav-core a{color:var(--ink);background:var(--soft);border-radius:999px;padding:9px 16px;font-weight:700;font-size:15px;transition:.2s}
.nav-core a:hover,.nav-core a.active{color:var(--red);background:var(--red-soft)}
.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 8px 18px rgba(201,0,0,.2);border:0}
.main-btn:hover{filter:brightness(.96);transform:translateY(-1px)}
.header-register{flex:0 0 auto}
.menu-toggle{display:none;width:42px;height:42px;padding:9px;border:1px solid var(--border);background:#fff;border-radius:12px;cursor:pointer}
.menu-toggle span{display:block;height:2px;background:var(--ink);margin:5px 0;border-radius:2px}
.site-shell{max-width:1380px;margin:0 auto;display:grid;grid-template-columns:190px minmax(0,1fr);gap:28px;padding:22px 24px 50px}
.side-category{position:sticky;top:96px;align-self:start;max-height:calc(100vh - 116px);overflow:auto;background:#fff;border:1px solid rgba(201,0,0,.1);border-radius:18px;box-shadow:var(--shadow);padding:16px}
.side-category strong{display:block;color:var(--red);font-size:17px;margin:0 0 10px}
.side-category nav{display:grid;gap:6px}.side-category a{color:var(--ink);border-radius:12px;padding:8px 10px;font-size:14px}
.side-category a:hover,.side-category a.active{color:var(--red);background:var(--red-soft);font-weight:700}
.site-main{min-width:0}
.page-hero{padding:48px 44px;border-radius:24px;background:linear-gradient(135deg,#fff 0%,#F7F8FA 62%,rgba(201,0,0,.07) 100%);border:1px solid var(--border);box-shadow:var(--shadow);margin-bottom:28px;position:relative;overflow:hidden}
.page-hero:after{content:"";position:absolute;width:190px;height:190px;border:34px solid rgba(201,0,0,.06);border-radius:50%;right:-62px;bottom:-88px}
.page-hero .eyebrow{display:inline-block;color:var(--red);background:var(--red-soft);border-radius:999px;padding:5px 12px;font-weight:800;font-size:13px}
.page-hero h1{font-size:clamp(30px,4vw,48px);line-height:1.2;color:var(--red);margin:14px 0 16px}.page-hero p{max-width:820px;color:var(--muted);font-size:17px;margin:0}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.text-link{display:inline-flex;align-items:center;font-weight:800;color:var(--red);padding:10px 4px}
.banner-slider{width:100%;margin:0 auto 32px;border-radius:22px;background:#F7F8FA;box-shadow:var(--shadow);overflow:hidden;position:relative;aspect-ratio:1180/330;min-height:260px;max-height:360px}
.slides{height:100%;position:relative}.slide{position:absolute;inset:0;opacity:0;pointer-events:none;transition:opacity .45s ease}.slide.active{opacity:1;pointer-events:auto}.slide img{width:100%;height:100%;object-fit:contain;background:#F7F8FA}
.slider-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:4;width:42px;height:42px;border-radius:50%;border:1px solid rgba(255,255,255,.7);background:rgba(17,21,28,.42);color:#fff;font-size:24px;cursor:pointer}.slider-arrow:hover{background:rgba(201,0,0,.78)}.slider-prev{left:16px}.slider-next{right:16px}
.slider-dots{position:absolute;left:0;right:0;bottom:13px;z-index:4;display:flex;justify-content:center;gap:8px}.slider-dot{width:10px;height:10px;border-radius:50%;border:0;background:rgba(255,255,255,.6);cursor:pointer;padding:0}.slider-dot.active{background:#C90000;box-shadow:0 0 0 3px rgba(255,255,255,.7)}
.banner-caption,.banner-text,.slide-title,.slide-desc,.slide-content,.slide-card,.banner-card{display:none!important}
.section{margin:28px 0;padding:30px;border-radius:22px;background:#fff;border:1px solid rgba(201,0,0,.1);box-shadow:var(--shadow)}
.section.soft{background:var(--soft);box-shadow:none}.section.dark{background:#151A22;color:#E7ECF3;border-color:#151A22}.section.dark h2,.section.dark h3{color:#fff}.section.dark p{color:#C9D0D9}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:20px}.section-head h2,.section-title{margin:0;color:var(--red);font-size:clamp(24px,3vw,34px);line-height:1.25}.section-head p{margin:0;color:var(--muted);max-width:680px}
.intro-grid,.feature-grid,.card-grid,.review-grid,.faq-grid,.split-grid{display:grid;gap:20px}
.intro-grid{grid-template-columns:1.15fr .85fr;align-items:center}.split-grid{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start}.feature-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.card-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.review-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.faq-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
.card,.zone-card,.info-card,.review-card,.faq-item{background:#fff;border:1px solid rgba(201,0,0,.1);box-shadow:var(--shadow);border-radius:18px;padding:20px;min-width:0}
.card h3,.zone-card h3,.info-card h3,.review-card h3,.faq-item h3{color:var(--red);margin:0 0 8px;font-size:19px}.card p,.zone-card p,.info-card p,.review-card p,.faq-item p{color:var(--muted);margin:0}.card .text-link{padding-bottom:0}
.feature-grid .info-card{border-top:3px solid var(--red)}
.content-img{width:100%;height:260px;object-fit:contain;background:#F7F8FA;border-radius:18px;border:1px solid rgba(18,28,45,.06)}
.product-card img,.zone-card img{width:100%;height:170px;object-fit:contain;background:#F7F8FA;border-radius:14px;margin-bottom:16px}
.horizontal-scroll{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(220px,1fr);gap:16px;overflow-x:auto;padding:4px 2px 14px;scroll-snap-type:x proximity}.horizontal-scroll>*{scroll-snap-align:start}
.service-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:#A80000;border-radius:20px;overflow:hidden;margin:28px 0;box-shadow:0 14px 28px rgba(168,0,0,.18)}.service-strip article{background:linear-gradient(180deg,#E62222,#B60000);color:#fff;padding:22px}.service-strip h3{margin:0 0 7px;font-size:18px}.service-strip p{margin:0;color:#FFE9E9;font-size:14px}
.quick-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.quick-links a{padding:18px;border-radius:16px;background:#fff;border:1px solid var(--border);font-weight:800;color:var(--ink)}.quick-links a span{display:block;color:var(--muted);font-size:13px;font-weight:400;margin-top:5px}.quick-links a:hover{color:var(--red);box-shadow:var(--shadow)}
.notice{padding:18px 20px;border-left:4px solid var(--red);background:var(--red-soft);border-radius:0 14px 14px 0;color:#4D2020}.notice strong{color:var(--red)}
.check-list{display:grid;gap:10px;padding:0;margin:0;list-style:none}.check-list li{position:relative;padding-left:24px;color:var(--muted)}.check-list li:before{content:"✓";position:absolute;left:0;top:0;color:var(--red);font-weight:900}
.steps{counter-reset:step;display:grid;gap:14px}.step{counter-increment:step;position:relative;padding:18px 18px 18px 64px;border-radius:16px;background:var(--soft)}.step:before{content:counter(step);position:absolute;left:18px;top:18px;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:var(--red);color:#fff;font-weight:900}.step h3{margin:0 0 4px;color:var(--ink)}.step p{margin:0;color:var(--muted)}
.review-card{position:relative;padding-top:44px}.review-card:before{content:"“";position:absolute;left:18px;top:0;color:rgba(201,0,0,.18);font-size:56px;font-family:Georgia,serif;line-height:1}.review-card small{display:block;margin-top:12px;color:#8A93A0}
.faq-item details{border:0}.faq-item summary{cursor:pointer;color:var(--ink);font-weight:800}.faq-item details p{margin-top:10px}
.table-wrap{overflow:auto;border:1px solid var(--border);border-radius:16px}.info-table{width:100%;border-collapse:collapse;min-width:640px}.info-table th,.info-table td{text-align:left;padding:14px 16px;border-bottom:1px solid #ECEFF3}.info-table th{background:var(--soft);color:var(--red)}.info-table tr:last-child td{border-bottom:0}
.cta-band{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:28px 32px;border-radius:22px;background:linear-gradient(135deg,#A80000,#E52B2B);color:#fff;margin:28px 0}.cta-band h2{margin:0 0 8px;color:#fff}.cta-band p{margin:0;color:#FFE9E9;max-width:760px}.cta-band .main-btn{background:#fff;color:var(--red);box-shadow:none;flex:0 0 auto}
.site-footer{background:#11151C;color:#E7ECF3;padding:44px 24px 88px;margin-top:28px}.footer-grid{max-width:1180px;margin:auto;display:grid;grid-template-columns:1.8fr 1fr 1fr;gap:44px}.footer-brand img{max-height:50px;width:auto;margin-bottom:16px}.footer-brand p{color:#AEB7C3;max-width:520px}.footer-grid h2{font-size:17px;color:#fff;margin:0 0 14px}.footer-grid a{display:block;color:#C9D0D9;margin:8px 0}.footer-grid a:hover{color:#fff}.compliance-note{max-width:1180px;margin:30px auto 0;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);color:#AEB7C3;font-size:13px}.footer-bottom{max-width:1180px;margin:16px auto 0;color:#7F8996;font-size:13px}
.mobile-drawer{position:fixed;left:0;top:0;bottom:0;width:82%;max-width:320px;background:#fff;z-index:1200;transform:translateX(-105%);transition:.25s;box-shadow:16px 0 40px rgba(0,0,0,.16);overflow:auto}.mobile-drawer.open{transform:translateX(0)}.drawer-mask{position:fixed;inset:0;z-index:1100;background:rgba(17,21,28,.48)}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid #ECEFF3}.drawer-logo img{max-height:42px;width:auto}.drawer-close{width:40px;height:40px;border:0;background:var(--soft);border-radius:50%;font-size:28px;cursor:pointer}.drawer-nav{padding:12px}.drawer-nav a{display:block;padding:11px 13px;border-radius:11px}.drawer-nav a:hover,.drawer-nav a.active{color:var(--red);background:var(--red-soft);font-weight:800}
.mobile-bottom-nav{display:none}
@media(max-width:1120px){.site-shell{grid-template-columns:1fr;max-width:1180px}.side-category{display:none}.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){
  :root{--header-h:64px}body{padding-top:64px;padding-bottom:64px}.header-inner{min-height:64px;padding:0 12px;gap:10px}.menu-toggle{display:block;flex:0 0 auto}.nav-core{display:none}.logo img{max-height:42px}.header-register{padding:9px 17px;font-size:14px}.site-shell{padding:14px 12px 28px}.page-hero{padding:30px 22px;border-radius:20px}.page-hero h1{font-size:30px}.page-hero p{font-size:15px}
  .banner-slider{min-height:150px;max-height:210px;aspect-ratio:16/7;border-radius:16px;margin-bottom:20px}.slider-arrow{width:36px;height:36px}.slider-prev{left:8px}.slider-next{right:8px}
  .section{padding:22px 16px;margin:20px 0;border-radius:18px}.section-head{display:block}.section-head p{margin-top:8px}.intro-grid,.split-grid,.card-grid,.review-grid,.faq-grid,.feature-grid{grid-template-columns:1fr}.content-img{height:210px}.product-card img,.zone-card img{height:150px}.service-strip{grid-template-columns:1fr 1fr}.quick-links{grid-template-columns:1fr 1fr}.cta-band{display:block;padding:24px}.cta-band .main-btn{margin-top:18px}.footer-grid{grid-template-columns:1fr;gap:24px}.site-footer{padding:36px 18px 96px}.mobile-bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:900;display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-top:1px solid #E4E7EB;padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom-nav a{text-align:center;padding:10px 4px 8px;color:#5D6673;font-size:13px}.mobile-bottom-nav a.active{color:var(--red);font-weight:800}.horizontal-scroll{grid-auto-columns:76%}
}
@media(max-width:420px){.quick-links{grid-template-columns:1fr}.service-strip{grid-template-columns:1fr}.main-btn{padding-left:18px;padding-right:18px}.page-hero h1{font-size:27px}}