:root{
--primary:#E53935;--primary-2:#FF7043;--primary-light:#FFCDD2;--primary-soft:#FFF3E0;--gold:#F9A825;--gold-deep:#C62828;--sky:#3B82F6;--ink:#172033;--ink-2:#25324A;--ink-3:#34435E;--bg:#F7FAFC;--bg-2:#FFF8F1;--bg-3:#EFF6FF;--surface:#FFFFFF;--surface-soft:rgba(255,255,255,.88);--surface-strong:rgba(255,255,255,.97);--text:#172033;--text-2:#475569;--text-3:#718096;--line:rgba(229,57,53,.11);--line-strong:rgba(229,57,53,.24);--shadow:0 8px 28px rgba(23,32,51,.08);--shadow-hover:0 18px 44px rgba(23,32,51,.14);--radius:12px;--radius-card:16px;--radius-large:22px;--radius-pill:999px;--wrap:1320px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;line-height:1.72;overflow-x:hidden}body.search-open,body.drawer-open{overflow:hidden}img{display:block;max-width:100%;object-fit:cover}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(2.3rem,5vw,4.8rem);line-height:1.08;letter-spacing:-.045em}h2{font-size:clamp(1.65rem,3vw,2.55rem);line-height:1.2}h3{line-height:1.35}.wrap{width:min(calc(100% - 40px),var(--wrap));margin-inline:auto}.skip-link{position:fixed;left:16px;top:-80px;z-index:200;background:#fff;padding:10px 18px}.skip-link:focus{top:10px}.notice{height:30px;overflow:hidden;background:linear-gradient(90deg,#E53935,#FF7043,#F9A825);color:#fff;text-align:center;font-size:13px}.notice-track{white-space:nowrap;animation:notice 18s linear infinite}@keyframes notice{50%{transform:translateX(20px)}}
.site-header{position:sticky;top:0;z-index:80;height:68px;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.site-header.scrolled{background:rgba(255,255,255,.97);box-shadow:0 3px 16px rgba(0,0,0,.12)}.header-row{height:100%;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:10px;flex:none;color:var(--gold-deep);font-weight:900;font-size:18px}.brand-logo{width:42px;height:42px;border-radius:10px}.desktop-nav{display:flex;align-items:center;justify-content:center;gap:18px;flex:1;font-size:14px;white-space:nowrap}.desktop-nav a{position:relative;color:var(--text-2);padding:22px 0}.desktop-nav a:hover{color:var(--primary)}.desktop-nav a.active{color:var(--gold);font-weight:700}.desktop-nav a.active:after{content:"";position:absolute;height:2px;background:var(--primary);left:25%;right:25%;bottom:13px}.header-actions{display:flex;align-items:center;gap:9px}.icon-button,.menu-toggle,.app-link{border:1px solid var(--line-strong);border-radius:var(--radius-pill);padding:8px 14px;background:#fff;color:var(--gold-deep)}.app-link{background:var(--primary);color:#fff}.menu-toggle{display:none}.mobile-drawer[hidden],.drawer-overlay[hidden]{display:none}.mobile-drawer{position:fixed;z-index:120;inset:0 0 0 auto;width:min(86vw,360px);background:#fff;padding:24px;box-shadow:-20px 0 60px rgba(23,32,51,.2)}.mobile-drawer nav{display:grid;gap:4px;margin-top:30px}.mobile-drawer nav a{padding:12px;border-bottom:1px solid var(--line)}.drawer-close{float:right;border:0;background:var(--primary-soft);padding:8px 13px;border-radius:20px}.drawer-overlay{position:fixed;z-index:110;inset:0;background:rgba(23,32,51,.42)}
.search-modal{display:none}.search-modal.is-open{display:flex;position:fixed;z-index:150;inset:0;background:rgba(23,32,51,.58);align-items:flex-start;justify-content:center;padding:12vh 20px}.search-modal[hidden]{display:none!important}.search-panel{position:relative;width:min(680px,100%);padding:36px;background:#fff;border-radius:var(--radius-large);box-shadow:var(--shadow-hover)}.search-panel form{display:flex;gap:10px}.search-panel input{min-width:0;flex:1;border:1px solid var(--line-strong);border-radius:var(--radius-pill);padding:13px 20px}.search-close{position:absolute;right:18px;top:14px;border:0;background:transparent;font-size:28px}.quick-links{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.quick-links a{background:var(--primary-soft);padding:6px 13px;border-radius:20px;color:var(--gold-deep)}
.home-hero,.inner-hero{background:linear-gradient(135deg,#F7FAFC 0%,#FFF8F1 50%,#EFF6FF 100%);padding:74px 0}.home-hero{min-height:510px;display:grid;place-items:center}.inner-hero.compact{padding:58px 0}.split{display:grid;grid-template-columns:minmax(0,3fr) minmax(320px,2fr);align-items:center;gap:clamp(35px,6vw,90px)}.split.reverse>:first-child{order:2}.split p{max-width:720px;color:var(--text-2);font-size:1.05rem}.home-hero em{font-style:normal;background:linear-gradient(90deg,#E53935,#F9A825,#C62828);background-clip:text;color:transparent}.hero-image{width:100%;aspect-ratio:4/3;border-radius:var(--radius-large);box-shadow:var(--shadow-hover)}figcaption{font-size:13px;color:var(--text-3);margin-top:10px}.eyebrow{color:var(--primary);font-weight:800;letter-spacing:.14em;font-size:.78rem;text-transform:uppercase}.actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:28px}.button{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:var(--radius-pill);padding:11px 20px;background:var(--primary);color:#fff;font-weight:700}.button:hover{background:var(--gold)}.button.secondary{background:#fff;color:var(--gold-deep);border:1px solid var(--line-strong)}.text-link{color:var(--primary);font-weight:700}.breadcrumb{width:min(calc(100% - 40px),var(--wrap));margin:18px auto 0;display:flex;gap:9px;color:var(--text-3);font-size:14px}
.section{padding:76px 0;background:#fff}.section.alt{background:var(--bg-2)}.section.product{background:var(--bg-3)}.section.flush{padding-top:15px}.section-lead{max-width:820px;color:var(--text-2);margin-bottom:28px}.channel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.channel-grid a{display:flex;flex-direction:column;gap:5px;padding:22px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow)}.channel-grid a:nth-child(3n){background:var(--bg-3)}.channel-grid a:nth-child(3n+2){background:var(--bg-2)}.channel-grid a:hover{background:var(--primary-soft);transform:translateY(-2px)}.channel-mark{width:28px;height:4px;border-radius:4px;background:var(--primary)}.channel-grid small{color:var(--text-3)}
.media-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.media-grid.thirds{grid-template-columns:repeat(3,1fr)}.media-card,.media-grid article,.banner-grid article,.preview-grid article,.preview-grid>a{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:14px;box-shadow:0 4px 18px rgba(23,32,51,.07)}.media-card.large{grid-column:span 2;grid-row:span 2}.card-media{width:100%;aspect-ratio:16/10;border-radius:12px;margin-bottom:15px}.media-card.large .card-media{aspect-ratio:16/9}.banner-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}.banner-grid img{width:100%;aspect-ratio:16/7;border-radius:12px;margin-bottom:16px}.preview-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.preview-grid.six{grid-template-columns:repeat(3,1fr)}.preview-grid img{width:100%;aspect-ratio:9/15;border-radius:12px;margin-bottom:12px}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.feature-grid article{padding:28px;border-left:3px solid var(--primary);background:#fff;border-radius:0 var(--radius-card) var(--radius-card) 0}.feature-stack{display:grid;gap:30px}.feature-stack article{display:grid;grid-template-columns:minmax(280px,1fr) 1.2fr;align-items:center;gap:30px;background:#fff;padding:20px;border-radius:var(--radius-large)}.feature-stack article:nth-child(even) img{order:2}.feature-stack img{width:100%;aspect-ratio:16/9;border-radius:14px}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.content-card{padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:0 4px 18px rgba(23,32,51,.07);transition:.25s}.content-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}.badge{display:inline-block;background:var(--primary-soft);color:var(--gold-deep);border-radius:20px;padding:3px 10px;font-size:12px}.meta{color:var(--text-3);font-size:13px;margin-bottom:10px}.content-layout{display:grid;grid-template-columns:220px 1fr;gap:38px;padding:45px 0}.sidebar{position:sticky;top:100px;align-self:start;display:grid;background:#fff;padding:18px;border-radius:var(--radius-card)}.sidebar h2{font-size:17px}.sidebar a{padding:9px 12px;border-radius:8px;color:var(--text-2)}.sidebar a.active{background:var(--primary-soft);color:var(--primary);font-weight:700}.callout{margin-top:32px;padding:30px;background:var(--bg-3);border-radius:var(--radius-large)}
.faq-list{display:grid;gap:10px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.faq-item h3{margin:0}.faq-item button{width:100%;display:flex;justify-content:space-between;text-align:left;border:0;background:#fff;padding:18px 20px;color:var(--ink);font-weight:700}.faq-item button[aria-expanded=true]{background:var(--primary-soft)}.faq-answer{padding:0 20px 16px;background:var(--primary-soft)}.faq-answer[hidden]{display:none}.site-footer{padding:62px 0 18px;background:linear-gradient(135deg,#172033,#25324A,#34435E);color:rgba(255,255,255,.72)}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:30px}.footer-grid h2,.footer-grid h3{color:#fff}.footer-grid nav{display:grid;align-content:start;gap:8px}.footer-grid a:hover{color:var(--primary-light)}.footer-bottom{border-top:1px solid rgba(249,168,37,.24);margin-top:40px;padding-top:16px}.mobile-tabs{display:none}.back-top{position:fixed;right:22px;bottom:22px;border:0;border-radius:50%;width:44px;height:44px;background:var(--primary);color:#fff;opacity:0;pointer-events:none;transition:.2s}.back-top.show{opacity:1;pointer-events:auto}.reveal{opacity:0;transform:translateY(15px)}.reveal.visible{opacity:1;transform:none;transition:.5s}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}:focus-visible{outline:3px solid var(--sky);outline-offset:3px}
@media(max-width:1200px){.desktop-nav{gap:12px;font-size:13px}.desktop-nav a:nth-last-child(-n+2){display:none}}
@media(max-width:1100px){.desktop-nav{display:none}.header-actions{margin-left:auto}.menu-toggle{display:inline-block}.sidebar{display:none}.content-layout{display:block}.footer-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:900px){.split{grid-template-columns:1fr}.home-hero{padding:56px 0}.home-hero figure{max-width:680px}.channel-grid{grid-template-columns:repeat(2,1fr)}.media-grid,.media-grid.thirds,.card-grid{grid-template-columns:repeat(2,1fr)}.preview-grid,.preview-grid.six{grid-template-columns:repeat(2,1fr)}.feature-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:repeat(2,1fr)}.split.reverse>:first-child{order:initial}}
@media(max-width:600px){body{padding-bottom:58px}.wrap{width:min(calc(100% - 28px),var(--wrap))}.notice{font-size:11px}.brand span{font-size:15px}.header-actions .icon-button{padding:7px 10px}.app-link{display:none}.home-hero,.inner-hero,.section{padding:48px 0}.channel-grid,.media-grid,.media-grid.thirds,.card-grid,.preview-grid,.preview-grid.six,.banner-grid{grid-template-columns:1fr}.media-card.large{grid-column:auto;grid-row:auto}.feature-stack article{grid-template-columns:1fr}.feature-stack article:nth-child(even) img{order:initial}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid section{grid-column:1/-1}.mobile-tabs{position:fixed;z-index:70;display:grid;grid-template-columns:repeat(4,1fr);left:0;right:0;bottom:0;background:#fff;border-top:2px solid var(--primary);box-shadow:0 -5px 20px rgba(23,32,51,.08)}.mobile-tabs a{text-align:center;padding:11px 4px;color:var(--text-2);font-size:13px}.back-top{bottom:72px}.search-panel{padding:28px 20px}.search-panel form{flex-direction:column}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}}