@charset "UTF-8";
:root{
 --primary:#4A9BD4;--primary-2:#6DB7E6;--sky:#8CCCF0;--sky-light:#CBE9F8;--sky-soft:#EDF8FD;
 --cream:#FFF9EE;--cream-2:#FFF4DF;--cream-3:#FDFBF6;--navy:#17344A;--navy-2:#244A64;--navy-soft:#4F6D80;
 --accent:#EF8E68;--accent-2:#F2B36F;--accent-soft:#FFF0E8;--bg:#FFFDF8;--bg-blue:#F3FAFE;--bg-cream:#FFF9EE;
 --surface:#FFFFFF;--surface-blue:#F8FCFF;--surface-cream:#FFFDF8;--text:#203542;--text-2:#5E7481;--text-3:#8A9AA3;
 --line:rgba(74,155,212,.12);--line-strong:rgba(74,155,212,.24);--line-warm:rgba(239,142,104,.14);
 --shadow:0 8px 28px rgba(31,88,124,.08);--shadow-hover:0 16px 42px rgba(31,88,124,.14);
 --radius:12px;--radius-card:18px;--radius-large:26px;--radius-pill:999px;--wrap:1320px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;line-height:1.6}body.search-open{overflow:hidden}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input{font:inherit}.wrap{width:min(calc(100% - 40px),var(--wrap));margin-inline: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}
.top-notice{background:var(--navy);color:#eaf6fd;font-size:13px}.top-notice .wrap{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:18px}.top-notice a{color:#fff;text-decoration:underline;text-underline-offset:3px}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,249,238,.9);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.header-inner{min-height:72px;display:flex;align-items:center;gap:26px}.brand{display:flex;align-items:center;gap:10px;flex:none}.brand img{width:42px;height:42px;border-radius:13px}.brand span{display:grid;line-height:1.15}.brand b{font-size:18px}.brand small{font-size:10px;letter-spacing:.12em;color:var(--text-3)}.desktop-nav{display:flex;gap:4px;align-items:center;margin:auto}.desktop-nav a{padding:9px 13px;border-radius:999px;font-weight:650;font-size:14px;color:var(--navy-2)}.desktop-nav a:hover,.desktop-nav a.is-current{background:var(--sky-soft);color:var(--primary)}.header-actions{display:flex;align-items:center;gap:8px}.icon-button,.menu-toggle,.app-button{border:1px solid var(--line-strong);background:rgba(255,255,255,.7);padding:9px 12px;border-radius:999px;color:var(--navy);cursor:pointer}.app-button{background:var(--primary);border-color:var(--primary);color:#fff}.menu-toggle{display:none}.mega-menu{border-top:1px solid var(--line);background:rgba(255,253,248,.98);box-shadow:var(--shadow)}.mega-menu[hidden]{display:none}.mega-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:10px;padding-block:18px}.mega-grid a{padding:13px 14px;border-radius:14px;background:var(--surface-blue);display:flex;justify-content:space-between}.mega-grid a:hover{background:var(--sky-light)}
.search-modal{display:none;position:fixed;inset:0;z-index:100;background:rgba(15,42,61,.48);padding:8vh 20px;align-items:flex-start;justify-content:center}.search-modal.is-open{display:flex}.search-modal[hidden]{display:none !important}.search-dialog{width:min(760px,100%);background:var(--cream-3);border:1px solid rgba(255,255,255,.75);border-radius:26px;box-shadow:0 30px 80px rgba(15,42,61,.24);padding:28px}.search-dialog-head{display:flex;align-items:start;justify-content:space-between;gap:24px}.search-dialog h2{margin:.25rem 0 1rem}.search-close{width:42px;height:42px;border:0;border-radius:50%;background:var(--sky-soft);font-size:26px;cursor:pointer}.search-form{display:flex;gap:10px}.search-form input{min-width:0;flex:1;border:1px solid var(--line-strong);background:#fff;border-radius:14px;padding:14px 16px;outline:none}.search-form input:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(74,155,212,.11)}.search-form button{border:0;border-radius:14px;background:var(--primary);color:#fff;padding:0 22px;cursor:pointer}.search-suggestions{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px;font-size:13px}.search-suggestions a{background:var(--cream-2);padding:6px 10px;border-radius:999px}
main{overflow:hidden}.section{padding:76px 0}.section--compact{padding:48px 0}.section--blue{background:var(--bg-blue)}.section--cream{background:var(--bg-cream)}.section--navy{background:var(--navy);color:#fff}.section--navy .section-intro,.section--navy .eyeline,.section--navy p{color:#d8e7ef}.section-header{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:28px}.section-header>div{max-width:780px}.section-header h2{font-size:clamp(26px,3vw,42px);line-height:1.14;margin:.2rem 0}.section-intro{margin:.45rem 0 0;color:var(--text-2);max-width:760px}.section-eyebrow{display:inline-block;color:var(--primary);font-weight:800;font-size:12px;letter-spacing:.1em;text-transform:uppercase}.text-link{font-weight:750;color:var(--primary);white-space:nowrap}.hero{padding:68px 0 50px;background:radial-gradient(circle at 82% 10%,rgba(140,204,240,.38),transparent 26%),linear-gradient(135deg,var(--cream) 0%,var(--sky-soft) 100%)}.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(360px,5fr);gap:42px;align-items:center}.hero h1{font-size:clamp(42px,6vw,78px);line-height:1.03;letter-spacing:-.045em;margin:14px 0 22px;max-width:820px}.hero-copy{font-size:17px;color:var(--text-2);max-width:760px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 18px;border-radius:14px;font-weight:750}.btn--primary{background:var(--primary);color:#fff}.btn--outline{border:1px solid var(--line-strong);background:rgba(255,255,255,.52)}.hero-search{display:flex;gap:8px;background:rgba(255,255,255,.82);border:1px solid var(--line);padding:7px;border-radius:16px;max-width:620px;box-shadow:var(--shadow)}.hero-search input{flex:1;min-width:0;border:0;background:transparent;padding:8px 10px;outline:0}.hero-search button{border:0;background:var(--navy);color:#fff;border-radius:11px;padding:0 16px}.hero-visual{position:relative;min-height:490px}.hero-visual>img{width:100%;height:430px;object-fit:cover;border-radius:32px;box-shadow:var(--shadow-hover)}.floating-panel{position:absolute;background:rgba(255,255,255,.9);backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.7);border-radius:18px;box-shadow:var(--shadow);padding:16px;width:220px}.floating-panel--top{right:-10px;top:24px}.floating-panel--bottom{left:-18px;bottom:8px}.floating-panel strong{display:block;font-size:24px;color:var(--navy)}.floating-panel small{color:var(--text-2)}
.channel-chips,.filter-chips{display:flex;gap:10px;overflow:auto;padding-bottom:4px;scrollbar-width:none}.channel-chips::-webkit-scrollbar,.filter-chips::-webkit-scrollbar{display:none}.chip{flex:none;border:1px solid var(--line-strong);background:#fff;border-radius:999px;padding:8px 13px;font-size:14px}.chip--active{background:var(--primary);border-color:var(--primary);color:#fff}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.grid-5{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}.split{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(320px,.75fr);gap:28px}.split--reverse{grid-template-columns:minmax(320px,.75fr) minmax(0,1.25fr)}.magazine-grid{display:grid;grid-template-columns:1.35fr .8fr .8fr;grid-template-rows:auto auto;gap:18px}.magazine-grid>*:first-child{grid-row:span 2}.bento-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;grid-auto-rows:210px;gap:16px}.bento-grid>*:first-child{grid-row:span 2}.bento-grid>*:nth-child(4){grid-column:span 2}.rail-wrap{position:relative}.rail{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(280px,360px);gap:18px;overflow-x:auto;scroll-snap-type:x proximity;padding-bottom:10px;scrollbar-width:thin}.rail>*{scroll-snap-align:start}.rail-controls{display:flex;gap:8px}.rail-button{width:38px;height:38px;border-radius:50%;border:1px solid var(--line-strong);background:#fff;cursor:pointer}.list-stack{display:grid;gap:12px}.timeline{position:relative;padding-left:24px}.timeline:before{content:"";position:absolute;left:6px;top:6px;bottom:6px;width:2px;background:var(--sky-light)}.timeline-item{position:relative;padding:0 0 24px 18px}.timeline-item:before{content:"";position:absolute;left:-23px;top:8px;width:10px;height:10px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 5px var(--sky-soft)}.ranking-list{display:grid;gap:0}.ranking-item{display:grid;grid-template-columns:54px 1fr auto;gap:15px;align-items:center;padding:14px 0;border-bottom:1px solid var(--line)}.rank-number{font-weight:900;font-size:26px;color:var(--primary)}.ranking-item:nth-child(-n+3) .rank-number{color:var(--accent)}
.video-card{min-width:0}.video-cover{position:relative;display:block;aspect-ratio:16/9;border-radius:18px;overflow:hidden;background:var(--sky-soft)}.video-cover img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease}.video-cover:hover img{transform:scale(1.02)}.play-icon{position:absolute;inset:50% auto auto 50%;transform:translate(-50%,-50%);width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.9);color:var(--navy);padding-left:3px;transition:transform .2s}.video-cover:hover .play-icon{transform:translate(-50%,-50%) scale(1.06)}.duration{position:absolute;right:10px;bottom:10px;background:rgba(15,42,61,.78);color:#fff;border-radius:8px;padding:3px 7px;font-size:12px}.video-body{padding:14px 4px}.video-body h3,.live-body h3,.community-card h3{margin:7px 0 8px;font-size:18px;line-height:1.35}.video-body p,.live-body p,.community-card p,.anchor-card p{margin:0;color:var(--text-2);font-size:14px}.eyeline,.card-footer,.community-meta,.related-line{display:flex;gap:10px;align-items:center;justify-content:space-between;color:var(--text-3);font-size:12px}.card-footer{margin-top:12px}.tags{display:flex;gap:5px;flex-wrap:wrap}.tag{background:var(--sky-soft);color:var(--navy-2);border-radius:999px;padding:3px 7px}.card-reason{margin-top:9px!important;padding:9px 10px;background:var(--cream-2);border-left:3px solid var(--accent-2);border-radius:8px}.video-card--feature .video-body h3{font-size:24px}.video-card--compact{display:grid;grid-template-columns:150px 1fr;gap:12px}.video-card--compact .video-cover{height:96px;aspect-ratio:auto}.video-card--compact .video-body{padding:0}.video-card--compact .video-body p{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.section--navy .video-card .tag{background:rgba(255,255,255,.1);color:#fff}.section--navy .video-card h3,.section--navy .video-card a{color:#fff}
.live-card{border:1px solid var(--line);border-radius:20px;overflow:hidden;background:var(--surface);box-shadow:0 6px 18px rgba(31,88,124,.05)}.live-cover{position:relative;aspect-ratio:16/10;overflow:hidden}.live-cover img{width:100%;height:100%;object-fit:cover}.live-badge{position:absolute;left:12px;top:12px;background:var(--accent);color:#fff;border-radius:999px;padding:5px 9px;font-size:11px;font-weight:850;letter-spacing:.06em}.live-body{padding:15px}.live-card--stage .live-cover{aspect-ratio:16/8}.live-card--stage .live-body h3{font-size:26px}.anchor-card{display:flex;gap:14px;align-items:flex-start;padding:16px;border-radius:18px;background:var(--surface-blue);border:1px solid var(--line)}.anchor-avatar{width:84px;height:84px;border-radius:50%;object-fit:cover;flex:none}.anchor-card h3{margin:4px 0;font-size:18px}.anchor-direction{color:var(--primary)!important;font-weight:750}.status-dot{font-size:11px;color:var(--accent);font-weight:800}.anchor-card--portrait{display:block;text-align:center;background:transparent;border:0;padding:0}.anchor-card--portrait .anchor-avatar{width:116px;height:116px;margin:0 auto 12px}.anchor-card--portrait p{max-width:260px;margin-inline:auto}.community-card{padding:20px;border-radius:20px;background:var(--cream-3);border:1px solid var(--line-warm)}.community-meta{justify-content:flex-start}.community-meta>span:last-child{margin-left:auto}.avatar-letter{width:32px;height:32px;border-radius:50%;display:grid;place-items:center;background:var(--sky-light);color:var(--navy);font-weight:800}.related-line{justify-content:flex-start;margin-top:14px;padding:9px 10px;border-radius:10px;background:var(--sky-soft)}.community-card--plain{border:0;border-bottom:1px solid var(--line);border-radius:0;background:transparent;padding-inline:0}
.feature-panel{padding:28px;border-radius:26px;background:linear-gradient(145deg,var(--sky-soft),var(--cream));border:1px solid var(--line)}.feature-panel img{border-radius:18px;width:100%;max-height:420px;object-fit:cover}.note-card{padding:22px;border-radius:20px;background:var(--cream-2);border:1px solid var(--line-warm)}.note-card h3{margin-top:0}.deep-panel{padding:34px;border-radius:28px;background:var(--navy);color:#fff}.deep-panel p{color:#d4e3ec}.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.stat-item{padding:18px;border-radius:16px;background:#fff;border:1px solid var(--line)}.stat-item strong{display:block;font-size:28px;color:var(--primary)}.trend-bars{display:grid;gap:14px}.trend-row{display:grid;grid-template-columns:160px 1fr 70px;gap:15px;align-items:center}.trend-track{height:9px;border-radius:99px;background:var(--sky-soft);overflow:hidden}.trend-fill{height:100%;border-radius:99px;background:var(--primary)}.tag-cloud{display:flex;gap:10px;flex-wrap:wrap}.tag-cloud a{padding:9px 13px;border-radius:999px;background:#fff;border:1px solid var(--line-strong)}.story-card{display:grid;grid-template-columns:220px 1fr;gap:20px;align-items:center}.story-card img{width:220px;aspect-ratio:4/3;object-fit:cover;border-radius:20px}.story-card h3{font-size:24px;margin:0 0 8px}.steps{counter-reset:step;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.step{position:relative;padding:22px;border-radius:18px;background:#fff;border:1px solid var(--line)}.step:before{counter-increment:step;content:counter(step);display:grid;place-items:center;width:32px;height:32px;border-radius:50%;background:var(--primary);color:#fff;font-weight:850;margin-bottom:14px}.faq-list{display:grid;gap:10px}.faq-item{border:1px solid var(--line);border-radius:16px;background:#fff;padding:0 18px}.faq-item summary{cursor:pointer;font-weight:750;padding:16px 0}.faq-item p{margin:0 0 18px;color:var(--text-2)}.page-hero{padding:64px 0 46px;background:linear-gradient(135deg,var(--cream),var(--sky-soft))}.page-hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center}.page-hero h1{font-size:clamp(38px,5vw,64px);line-height:1.05;margin:10px 0 16px}.page-hero p{font-size:17px;color:var(--text-2);max-width:760px}.page-hero img{border-radius:28px;max-height:400px;width:100%;object-fit:cover}.notice-box{padding:18px 20px;border-radius:16px;background:var(--accent-soft);border:1px solid var(--line-warm)}.empty-download{display:flex;gap:20px;align-items:center;justify-content:space-between;padding:24px;border-radius:20px;background:var(--sky-soft);border:1px dashed var(--primary)}.code-like{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;background:var(--navy);color:#eaf6fd;border-radius:14px;padding:14px 16px}.search-results{display:grid;gap:14px}.result-card{display:grid;grid-template-columns:150px 1fr;gap:18px;padding:16px 0;border-bottom:1px solid var(--line)}.result-card img{width:150px;aspect-ratio:16/9;object-fit:cover;border-radius:14px}.result-card h3{margin:0 0 6px}.app-showcase{display:grid;grid-template-columns:.85fr 1.15fr;gap:40px;align-items:center}.phone-stage{position:relative;min-height:520px}.phone-stage .phone{position:absolute;width:54%;left:14%;top:0}.phone-stage .app{position:absolute;width:64%;right:0;bottom:0;border-radius:24px;box-shadow:var(--shadow-hover)}.callout-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.callout{padding:18px;border-radius:16px;background:#fff;border:1px solid var(--line)}
.layout-hero{}.layout-chips{}.layout-feature-main{}.layout-four-picks{}.layout-top-list{}.layout-two-col-flow{}.layout-waterfall{}.layout-horizontal-rail{}.layout-city-story{}.layout-bento{}.layout-live-stage{}.layout-live-grid{}.layout-avatar-rail{}.layout-anchor-list{}.layout-replay-rail{}.layout-category-strip{}.layout-media-feature{}.layout-media-list{}.layout-fun-grid{}.layout-knowledge-list{}.layout-creator-rail{}.layout-story-split{}.layout-community-grid{}.layout-topic-focus{}.layout-discussion-timeline{}.layout-trend-bars{}.layout-tag-cloud{}.layout-editorial{}.layout-latest-list{}.layout-tutorial-grid{}.layout-tips-split{}.layout-app-showcase{}.layout-install-steps{}.layout-safety-split{}.layout-about-note{}.layout-faq{}
.back-top{position:fixed;right:22px;bottom:24px;width:44px;height:44px;border:0;border-radius:50%;background:var(--navy);color:#fff;opacity:0;pointer-events:none;transform:translateY(8px);transition:.2s;z-index:40}.back-top.is-visible{opacity:1;pointer-events:auto;transform:none}.mobile-bottom-nav{display:none}
@media (max-width:1100px){.desktop-nav{display:none}.menu-toggle{display:inline-flex}.hero-grid,.page-hero-grid{grid-template-columns:1fr}.hero-visual{max-width:760px}.grid-4,.grid-5{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}.split,.split--reverse{grid-template-columns:1fr}.magazine-grid{grid-template-columns:1.15fr .85fr}.magazine-grid>*:first-child{grid-row:auto;grid-column:span 2}.bento-grid{grid-template-columns:1fr 1fr}.bento-grid>*:first-child{grid-row:auto}.bento-grid>*:nth-child(4){grid-column:auto}.mega-grid{grid-template-columns:repeat(3,1fr)}.steps{grid-template-columns:repeat(2,1fr)}.app-showcase{grid-template-columns:1fr}.phone-stage{max-width:620px}}
@media (max-width:720px){.wrap{width:min(calc(100% - 28px),var(--wrap))}.top-notice .wrap{padding:7px 0;align-items:flex-start}.top-notice a{display:none}.header-inner{min-height:64px;gap:10px}.brand img{width:38px;height:38px}.brand small{display:none}.header-actions .icon-button span,.header-actions>a.icon-button{display:none}.app-button{display:none}.menu-toggle{padding:8px 10px}.mega-grid{grid-template-columns:repeat(2,1fr)}.hero{padding:42px 0 30px}.hero h1{font-size:43px}.hero-grid{gap:26px}.hero-visual{min-height:360px}.hero-visual>img{height:320px}.floating-panel{width:180px;padding:12px}.floating-panel strong{font-size:20px}.section{padding:54px 0}.section--compact{padding:36px 0}.section-header{align-items:flex-start;flex-direction:column;margin-bottom:20px}.section-header h2{font-size:30px}.grid-2,.grid-3{grid-template-columns:1fr}.grid-4,.grid-5{grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.grid-4 .video-body p,.grid-5 .video-body p{display:none}.grid-4 .video-body h3,.grid-5 .video-body h3{font-size:15px}.rail{grid-auto-columns:82%}.magazine-grid{display:grid;grid-template-columns:1fr}.magazine-grid>*:first-child{grid-column:auto}.bento-grid{grid-template-columns:1fr 1fr;grid-auto-rows:auto}.bento-grid>*:first-child{grid-column:span 2}.bento-grid .video-card:first-child .video-cover{aspect-ratio:16/8.8}.stat-strip{grid-template-columns:repeat(2,1fr)}.trend-row{grid-template-columns:100px 1fr 50px}.story-card{grid-template-columns:100px 1fr}.story-card img{width:100px;height:120px}.steps{grid-template-columns:1fr}.video-card--compact{grid-template-columns:118px 1fr}.video-card--compact .video-cover{height:82px}.anchor-card{padding:13px}.anchor-avatar{width:68px;height:68px}.app-showcase{gap:20px}.phone-stage{min-height:420px}.callout-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr!important}.footer-brand{grid-column:span 2}.footer-bottom{padding-bottom:80px!important;flex-direction:column}.mobile-bottom-nav{position:fixed;z-index:45;display:grid;grid-template-columns:repeat(5,1fr);left:10px;right:10px;bottom:10px;background:rgba(255,253,248,.96);backdrop-filter:blur(16px);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-hover);padding:7px}.mobile-bottom-nav a{text-align:center;font-size:12px;padding:7px 3px}.back-top{bottom:86px}.search-modal{padding:20px 12px}.search-dialog{padding:20px}.search-form{flex-direction:column}.search-form button{padding:12px}.result-card{grid-template-columns:100px 1fr}.result-card img{width:100px}.page-hero{padding:42px 0 30px}.page-hero h1{font-size:42px}}
.site-footer{background:var(--navy);color:#fff;padding:56px 0 0}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:34px}.footer-brand p{color:#c9dce7;max-width:420px}.brand--footer small{color:#a8c3d2}.site-footer h3{font-size:14px;margin:0 0 14px;color:#bcd5e3}.site-footer>div>div:not(.footer-brand){display:flex;flex-direction:column;gap:9px}.site-footer a{color:#f2f8fb;font-size:14px}.footer-bottom{margin-top:38px;border-top:1px solid rgba(255,255,255,.12);padding:18px 0 24px;display:flex;justify-content:space-between;gap:18px;color:#9fbac8;font-size:12px}