:root{--bg:#F4FBFF;--white:#fff;--soft:#EAF7FF;--blue:#1CA8F6;--bright:#38C7FF;--deep:#0877C9;--cyan:#7FE4FF;--ink:#223044;--muted:#5F7082;--nav:#1D2A3A;--footer:#082A46;--shadow:0 16px 40px rgba(8,119,201,.08);--radius:22px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.75;overflow-x:hidden;padding-top:118px}body.drawer-open{overflow:hidden}a{text-decoration:none;color:inherit}img{display:block;max-width:100%;height:auto}.container{width:min(1200px,calc(100% - 32px));margin:auto}.site-header{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);box-shadow:0 8px 24px rgba(8,119,201,.08)}.topbar{height:72px;display:flex;align-items:center;gap:28px}.brand-logo{width:142px;flex:none}.brand-logo img{width:100%;max-height:48px;object-fit:contain}.nav-core{display:flex;justify-content:center;gap:30px;flex:1}.nav-core a{color:var(--nav);font-weight:600;position:relative;padding:22px 4px}.nav-core a:hover,.nav-core a.active{color:var(--blue)}.nav-core a.active:after{content:"";position:absolute;left:50%;bottom:10px;width:28px;height:3px;border-radius:999px;background:var(--blue);transform:translateX(-50%)}.main-btn{display:inline-flex;align-items:center;justify-content:center;padding:11px 24px;border-radius:999px;background:linear-gradient(135deg,var(--bright) 0%,var(--blue) 48%,var(--deep) 100%);color:#fff;font-weight:700;box-shadow:0 12px 26px rgba(8,119,201,.18);transition:.25s}.main-btn:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(8,119,201,.25)}.header-register{flex:none}.channel-bar{background:rgba(234,247,255,.88);border-top:1px solid rgba(28,168,246,.10);border-bottom:1px solid rgba(28,168,246,.10);overflow-x:auto;white-space:nowrap}.channel-inner{height:46px;display:flex;align-items:center;gap:8px}.channel-bar a{padding:6px 12px;border-radius:999px;color:var(--muted);font-size:14px}.channel-bar a:hover,.channel-bar a.active{color:var(--deep);background:rgba(28,168,246,.09)}.menu-toggle{display:none;border:0;background:transparent;padding:8px}.menu-toggle span{display:block;width:22px;height:2px;background:var(--deep);margin:4px 0;border-radius:2px}.floating-service{position:fixed;right:18px;top:42%;z-index:60;display:grid;gap:8px;width:96px}.floating-service a,.floating-service button{border:1px solid rgba(28,168,246,.14);background:#fff;color:var(--deep);padding:10px 8px;border-radius:12px;box-shadow:0 14px 30px rgba(8,119,201,.10);font:inherit;cursor:pointer;text-align:center}.floating-service .register-link{background:linear-gradient(135deg,var(--bright),var(--blue),var(--deep));color:#fff}.drawer-overlay{position:fixed;inset:0;background:rgba(8,42,70,.42);z-index:150;opacity:0;visibility:hidden;transition:.25s}.drawer-overlay.show{opacity:1;visibility:visible}.mobile-drawer{position:fixed;left:0;top:0;bottom:0;width:min(84vw,320px);z-index:160;background:#fff;transform:translateX(-102%);transition:.28s;overflow:auto;box-shadow:20px 0 50px rgba(8,42,70,.18)}.mobile-drawer.open{transform:none}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px;border-bottom:1px solid #e7f3fb}.drawer-head img{width:130px;max-height:46px;object-fit:contain}.drawer-close{font-size:28px;border:0;background:transparent;color:var(--deep)}.mobile-drawer nav{display:grid;padding:12px}.mobile-drawer nav a{padding:11px 12px;border-radius:10px;color:var(--muted)}.mobile-drawer nav a:hover,.mobile-drawer nav a.active{background:var(--soft);color:var(--deep)}.mobile-bottom{display:none}.banner-slider{width:min(1200px,calc(100% - 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@media(max-width:600px){.container{width:min(100% - 22px,1200px)}section{padding:32px 0}.banner-slider{width:calc(100% - 22px);height:190px;margin:16px auto 24px;border-radius:16px}.slider-arrow{width:36px;height:36px;font-size:22px}.hero-panel,.article-shell{padding:22px}.section-title{font-size:26px}.quick-grid,.content-grid-2,.content-grid-3,.info-grid,.review-grid,.article-sections,.compliance-grid,.footer-grid{grid-template-columns:1fr}.zone-card img{height:160px}.footer-grid{gap:20px}.brand-logo{width:116px}.header-register{padding:8px 14px;font-size:14px}}