: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;--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:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7;overflow-x:hidden}body.search-open,body.drawer-open{overflow:hidden}a{color:inherit;text-decoration:none}a:hover{color:var(--primary)}img{display:block;max-width:100%;object-fit:cover}button,input{font:inherit}.wrap{width:min(calc(100% - 40px),var(--wrap));margin:auto}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:fixed;top:-80px;left:20px;z-index:10000;background:var(--ink);color:#fff;padding:9px 14px;border-radius:8px}.skip-link:focus{top:12px}.notice{height:30px;background:linear-gradient(90deg,#E53935,#FF7043,#F9A825);color:#fff;font-size:12px}.notice-track{height:100%;display:flex;align-items:center;gap:34px;white-space:nowrap;overflow:hidden}.site-header{position:sticky;top:0;z-index:500;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:68px;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:10px;min-width:max-content}.brand img{width:44px;height:44px}.brand span{display:flex;flex-direction:column;line-height:1.15}.brand b{color:var(--gold-deep);font-size:18px}.brand small{color:var(--text-3);font-size:11px}.desktop-nav{display:flex;gap:18px;align-items:center;flex:1}.desktop-nav a{font-size:14px;color:var(--text-2);position:relative}.desktop-nav a.active,.desktop-nav a:hover{color:var(--primary)}.desktop-nav a.active:after{content:"";position:absolute;left:20%;right:20%;bottom:-9px;height:2px;background:var(--primary)}.header-actions{display:flex;gap:9px}.icon-btn,.app-link,.btn{border:1px solid var(--line-strong);background:#fff;padding:9px 14px;border-radius:999px;cursor:pointer}.app-link,.btn.primary{background:var(--primary);color:#fff;border-color:var(--primary)}.section{padding:68px 0}.white{background:#fff}.alt{background:var(--bg-2)}.blue{background:var(--bg-3)}.eyebrow{display:inline-block;color:var(--primary);font-weight:700;font-size:13px;letter-spacing:.08em}.section-head{display:flex;justify-content:space-between;gap:20px;align-items:end;margin-bottom:26px}.section-head h2,.page-hero h1{margin:.2em 0;color:var(--gold-deep)}.lead,.section-head p{color:var(--text-2);max-width:780px}.hero{background:linear-gradient(135deg,#F7FAFC 0%,#FFF8F1 50%,#EFF6FF 100%);padding:62px 0}.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:46px;align-items:center}.hero h1{font-size:clamp(38px,5vw,68px);line-height:1.08;margin:.2em 0}.hero h1 em{font-style:normal;background:linear-gradient(90deg,#E53935,#F9A825,#C62828);-webkit-background-clip:text;color:transparent}.hero p{font-size:18px;color:var(--text-2)}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.hero-visual img{width:100%;aspect-ratio:4/3;border-radius:26px;box-shadow:var(--shadow-hover)}.hero-note{margin-top:12px;background:#fff;padding:13px 16px;border-radius:14px;box-shadow:var(--shadow)}.grid{display:grid;gap:20px}.grid-4{grid-template-columns:repeat(4,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-2{grid-template-columns:repeat(2,1fr)}.content-card,.service-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:0 4px 18px rgba(23,32,51,.07)}.content-card{transition:.2s}.content-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}.media img{width:100%;aspect-ratio:16/9}.card-body{padding:18px}.card-body h3{margin:.2em 0 .4em}.card-body p{color:var(--text-2)}.channels{grid-template-columns:repeat(8,1fr)}.channel{background:#fff;border:1px solid var(--line);border-radius:15px;padding:18px;min-height:120px}.channel:hover{background:var(--primary-soft)}.channel strong{display:block}.channel small{color:var(--text-3)}.rank-list{counter-reset:r;display:grid;gap:10px}.rank-item{counter-increment:r;background:#fff;border-radius:14px;padding:16px 18px;display:flex;gap:14px}.rank-item:before{content:counter(r,decimal-leading-zero);font-weight:800;color:var(--primary)}.rank-item:nth-child(1):before{color:var(--gold)}.rank-item:nth-child(3):before{color:var(--primary-2)}.page-hero{padding:56px 0 36px;background:linear-gradient(135deg,#fff,#FFF8F1,#EFF6FF)}.page-hero h1{font-size:clamp(34px,5vw,56px)}.breadcrumbs{display:flex;gap:8px;color:var(--text-3);font-size:13px}.feature-split{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center}.feature-split img{width:100%;aspect-ratio:16/10;border-radius:20px}.bullets{list-style:none;padding:0;display:grid;gap:10px}.bullets li{background:#fff;border:1px solid var(--line);padding:13px;border-radius:12px}.tags{display:flex;gap:8px;flex-wrap:wrap}.tag{background:var(--primary-soft);color:var(--gold-deep);padding:7px 11px;border-radius:999px;font-size:13px}.sidebar-layout{display:grid;grid-template-columns:220px 1fr;gap:28px}.sidebar{position:sticky;top:92px;height:max-content;background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px}.sidebar a{display:block;padding:8px;border-radius:8px}.sidebar a:hover{background:var(--primary-soft)}.app-strip{display:grid;grid-template-columns:1.1fr repeat(3,.63fr);gap:18px}.app-strip img{height:100%;min-height:280px;border-radius:18px}.faq-list{display:grid;gap:10px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}.faq-q{width:100%;border:0;background:#fff;display:flex;justify-content:space-between;text-align:left;padding:17px 18px;font-weight:700;cursor:pointer}.faq-a{padding:0 18px 18px;color:var(--text-2)}.notice-box{background:var(--primary-soft);border-left:4px solid var(--primary);padding:18px;border-radius:10px}.search-modal{display:none;position:fixed;inset:0;z-index:2000;background:rgba(23,32,51,.62);padding:9vh 20px}.search-modal.is-open{display:flex;align-items:flex-start;justify-content:center}.search-modal[hidden]{display:none !important}.search-dialog{position:relative;width:min(720px,100%);background:#fff;border-radius:20px;padding:30px;box-shadow:var(--shadow-hover)}.search-close{position:absolute;right:16px;top:14px;border:0;background:transparent;font-size:28px}.search-row{display:flex;gap:10px}.search-row input{flex:1;padding:13px 16px;border:1px solid var(--line-strong);border-radius:999px}.search-row button{padding:12px 20px;border:0;background:var(--primary);color:#fff;border-radius:999px}.search-links{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}.search-links a{font-size:13px;background:var(--primary-soft);padding:6px 10px;border-radius:999px}.drawer{position:fixed;inset:0;background:rgba(23,32,51,.45);z-index:1800}.drawer[hidden]{display:none}.drawer-panel{margin-left:auto;width:min(360px,88vw);height:100%;background:#fff;padding:22px}.drawer-panel nav{display:grid;gap:4px;margin-top:24px}.drawer-panel a{padding:11px;border-bottom:1px solid var(--line)}.drawer-close{float:right}.site-footer{background:linear-gradient(135deg,#172033,#25324A,#34435E);color:#fff;padding:56px 0 22px}.footer-grid{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:28px}.footer-grid p,.footer-grid a{color:rgba(255,255,255,.72)}.footer-grid a{display:block;margin:7px 0}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:30px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:rgba(255,255,255,.62);font-size:13px}.mobile-bottom{display:none}.backtop{position:fixed;right:18px;bottom:20px;width:42px;height:42px;border:0;border-radius:50%;background:var(--ink);color:#fff;opacity:0;pointer-events:none}.backtop.show{opacity:1;pointer-events:auto}.reveal{opacity:1;transform:none}.js .reveal{opacity:.01;transform:translateY(10px);transition:.5s}.js .reveal.in{opacity:1;transform:none}
@media(max-width:1100px){.desktop-nav{display:none}.channels{grid-template-columns:repeat(4,1fr)}.grid-4{grid-template-columns:repeat(2,1fr)}.sidebar-layout{grid-template-columns:1fr}.sidebar{display:none}.footer-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:900px){.hero-grid,.feature-split{grid-template-columns:1fr}.app-strip{grid-template-columns:1fr 1fr}.grid-3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.wrap{width:min(calc(100% - 28px),var(--wrap))}.section{padding:50px 0}.channels{grid-template-columns:repeat(2,1fr)}.grid-3,.grid-2{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-bottom{flex-direction:column}.mobile-bottom{display:flex;position:sticky;bottom:0;z-index:450;background:#fff;border-top:1px solid var(--primary);justify-content:space-around;padding:9px 6px}.backtop{bottom:72px}}
@media(max-width:600px){.header-actions .app-link{display:none}.hero{padding:40px 0}.grid-4,.app-strip{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.search-row{flex-direction:column}.section-head{align-items:start;flex-direction:column}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto !important;transition:none !important}.js .reveal{opacity:1;transform:none}}