: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:16px/1.7 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;overflow-x:hidden}body.search-open{overflow:hidden}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;object-fit:cover}button,input{font:inherit}.wrap{width:min(calc(100% - 40px),var(--wrap));margin:auto}.skip-link{position:fixed;left:12px;top:-60px;z-index:1000;background:#fff;padding:10px}.skip-link:focus{top:10px}.notice{height:30px;overflow:hidden;color:#fff;background:linear-gradient(90deg,#E53935,#FF7043,#F9A825);font-size:13px}.notice-track{white-space:nowrap;text-align:center;line-height:30px}.site-header{position:sticky;top:0;z-index:50;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-inner{height:100%;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:9px;flex:none;color:var(--gold-deep);font-weight:800;font-size:18px}.logo{width:38px;height:38px;border-radius:10px}.desktop-nav{display:flex;align-items:center;gap:17px;min-width:0;flex:1}.desktop-nav a{font-size:14px;color:var(--text-2);white-space:nowrap;border-bottom:2px solid transparent}.desktop-nav a:hover,.desktop-nav a.active{color:var(--primary);border-color:var(--primary)}.header-tools{display:flex;gap:8px;align-items:center;white-space:nowrap}.icon-button,.menu-toggle,.app-link{border:1px solid var(--line-strong);background:#fff;border-radius:var(--radius-pill);padding:7px 13px;color:var(--gold-deep);cursor:pointer}.app-link{background:var(--primary);color:#fff;border-color:var(--primary)}.menu-toggle{display:none}.home-hero{background:linear-gradient(135deg,#F7FAFC 0%,#FFF8F1 50%,#EFF6FF 100%);padding:68px 0}.hero-grid,.inner-hero{display:grid;grid-template-columns:3fr 2fr;gap:58px;align-items:center}.hero-grid h1,.inner-hero h1{font-size:clamp(38px,5vw,68px);line-height:1.12;margin:12px 0 22px;letter-spacing:-.04em}.inner-hero{padding:38px 0 64px}.inner-hero h1{font-size:clamp(34px,4vw,54px)}.eyebrow{color:var(--primary);font-weight:800;letter-spacing:.12em;font-size:13px}.gradient-text{background:linear-gradient(90deg,#E53935,#F9A825,#C62828);background-clip:text;color:transparent}.lead{font-size:18px;color:var(--text-2);max-width:760px}.hero-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;cursor:pointer}.button:hover{background:var(--gold);color:var(--ink)}.button-ghost{background:#fff;color:var(--gold-deep);border:1px solid var(--line-strong)}.text-link{color:var(--primary);font-weight:700}.service-note,figcaption{color:var(--text-3);font-size:13px;margin-top:12px}.hero-image{width:100%;aspect-ratio:4/3;border-radius:var(--radius-large);box-shadow:var(--shadow)}.section{padding:72px 0}.section.alt,.alt{background:var(--bg-2)}.section.compact{padding-top:30px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:28px}.section-head h2,.feature-strip h2,.device-feature h2{font-size:clamp(26px,3vw,38px);line-height:1.25;margin:7px 0;color:var(--gold-deep)}.section-head>p{max-width:540px;color:var(--text-2)}.channel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.channel-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;transition:.2s}.channel-card:nth-child(3n){background:var(--bg-3)}.channel-card:hover{background:var(--primary-soft);transform:translateY(-2px)}.channel-card strong{display:block;font-size:18px;margin-bottom:8px}.channel-card span{color:var(--text-2);font-size:14px}.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.content-card{overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:0 4px 18px rgba(23,32,51,.07);transition:.2s}.content-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}.card-image{width:100%;aspect-ratio:16/10}.card-body{padding:20px}.card-body h3{margin:8px 0;font-size:20px}.card-body p{color:var(--text-2)}.badge{display:inline-block;background:var(--primary-soft);color:var(--gold-deep);border-radius:var(--radius-pill);padding:3px 10px;font-size:12px;font-weight:700}.breadcrumb{display:flex;gap:8px;padding-top:24px;color:var(--text-3);font-size:14px}.filter-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}.filter{padding:6px 12px;border:1px solid var(--line);border-radius:99px;background:#fff}.filter.active,.filter:hover{background:var(--primary);color:#fff}.feature-strip{margin:20px 0 70px;padding:36px;display:flex;align-items:center;justify-content:space-between;gap:30px;background:linear-gradient(135deg,#fff,#FFF3E0);border:1px solid var(--line);border-radius:var(--radius-large)}details{background:#fff;border:1px solid var(--line);border-radius:12px;margin:12px 0;padding:16px}summary{font-weight:700;cursor:pointer}.device-feature{display:grid;grid-template-columns:1fr 2fr;align-items:center;gap:50px;padding:35px;background:#fff;border-radius:var(--radius-large)}.phone-image{width:100%;aspect-ratio:4/5;border-radius:18px}.search-page{min-height:60vh;padding:60px 0}.search-row{display:flex;gap:10px}.search-row input{width:100%;padding:12px 18px;border:1px solid var(--line-strong);border-radius:var(--radius-pill);background:#fff}.search-modal{display:none;position:fixed;inset:0;z-index:100;background:rgba(23,32,51,.55);padding:20px;align-items:flex-start;justify-content:center}.search-modal.is-open{display:flex}.search-modal[hidden]{display:none!important}.search-dialog{position:relative;width:min(680px,100%);margin-top:12vh;background:#fff;border-radius:var(--radius-large);padding:32px;box-shadow:var(--shadow-hover)}.search-close{position:absolute;right:16px;top:12px;border:0;background:none;font-size:30px;cursor:pointer}.quick-links{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}.quick-links a{background:var(--bg-3);padding:5px 12px;border-radius:99px}.drawer[hidden]{display:none!important}.drawer{position:fixed;inset:0;z-index:90;background:rgba(23,32,51,.5)}.drawer-panel{margin-left:auto;height:100%;width:min(360px,88vw);background:#fff;padding:24px}.drawer-panel nav{display:grid;gap:4px}.drawer-panel nav a{padding:10px;border-bottom:1px solid var(--line)}.drawer-close{float:right}.site-footer{background:linear-gradient(135deg,#172033,#25324A,#34435E);color:rgba(255,255,255,.72);padding:56px 0 20px}.footer-grid{display:grid;grid-template-columns:2fr repeat(4,1fr);gap:36px}.footer-grid h2{font-size:15px;color:#fff}.footer-grid a{display:block;margin:7px 0}.footer-grid a:hover{color:var(--primary-light)}.footer-brand{color:#fff;font-size:22px;font-weight:800}.footer-bottom{border-top:1px solid rgba(249,168,37,.25);padding-top:18px;margin-top:30px}.mobile-bottom{display:none}.back-top{position:fixed;right:20px;bottom:24px;width:42px;height:42px;border-radius:50%;border:0;background:var(--primary);color:#fff;display:none}.back-top.visible{display:block}:focus-visible{outline:3px solid var(--sky);outline-offset:3px}
@media(max-width:1200px){.desktop-nav{gap:9px}.desktop-nav a{font-size:12px}}
@media(max-width:1100px){.desktop-nav{display:none}.menu-toggle{display:inline-block}.header-tools{margin-left:auto}.card-grid{grid-template-columns:repeat(2,1fr)}.channel-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:900px){.hero-grid,.inner-hero{grid-template-columns:1fr;gap:32px}.home-hero{padding:44px 0}.footer-grid{grid-template-columns:repeat(2,1fr)}.device-feature{grid-template-columns:1fr}.section-head{display:block}}
@media(max-width:600px){.wrap{width:min(calc(100% - 24px),var(--wrap))}.notice-track{text-align:left;padding-left:12px}.brand span{font-size:15px}.icon-button{display:none}.app-link{padding:6px 9px}.card-grid,.channel-grid{grid-template-columns:1fr}.section{padding:48px 0}.inner-hero{padding-bottom:40px}.feature-strip{display:block;padding:24px}.feature-strip .button{margin-top:15px}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}.mobile-bottom{display:flex;position:fixed;z-index:45;bottom:0;left:0;right:0;height:58px;justify-content:space-around;align-items:center;background:#fff;border-top:1px solid var(--primary);font-size:13px}.site-footer{padding-bottom:75px}.back-top{bottom:72px}.search-dialog{padding:25px 18px}.hero-grid h1{font-size:38px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
.library-section{border-top:1px solid var(--line)}.library-list{display:grid;gap:14px}.library-item{display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;padding:24px 26px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card)}.library-item:nth-child(even){background:linear-gradient(135deg,#fff,#FFF8F1)}.library-item h3{margin:5px 0 7px;font-size:21px}.library-item p{margin:0;color:var(--text-2);max-width:980px}.meta{color:var(--primary);font-size:12px;font-weight:800;letter-spacing:.06em}.schedule-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:12px}.schedule-grid article{padding:18px;background:#fff;border-top:3px solid var(--primary);border-radius:0 0 14px 14px;box-shadow:var(--shadow)}.schedule-grid strong{color:var(--primary)}.schedule-grid h3{font-size:16px;line-height:1.4}.schedule-grid p{font-size:13px;color:var(--text-2)}
@media(max-width:1100px){.schedule-grid{grid-template-columns:repeat(4,1fr)}}
@media(max-width:768px){.library-item{grid-template-columns:1fr}.schedule-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.schedule-grid{grid-template-columns:1fr}}