: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,-apple-system,sans-serif;line-height:1.65}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input{font:inherit}.wrap{width:min(var(--wrap),calc(100% - 40px));margin-inline:auto}.skip-link{position:fixed;left:16px;top:-60px;background:var(--navy);color:#fff;padding:10px 14px;z-index:9999}.skip-link:focus{top:16px}.sr-only{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.top-notice{background:var(--cream-2);font-size:13px;color:var(--navy-2);border-bottom:1px solid var(--line-warm);padding:7px 0}.top-notice a{text-decoration:underline;text-underline-offset:3px}.site-header{position:sticky;top:0;z-index:60;background:rgba(255,249,238,.92);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}.header-inner{height:72px;display:flex;align-items:center;gap:28px}.brand{display:inline-flex;align-items:center;gap:10px;font-weight:900;letter-spacing:.08em;color:var(--navy)}.brand img{width:40px;height:40px;border-radius:12px;object-fit:cover}.desktop-nav{display:flex;gap:8px;flex:1}.desktop-nav a{padding:8px 12px;border-radius:var(--radius-pill);font-weight:700;color:var(--navy-soft)}.desktop-nav a:hover,.desktop-nav a.is-active{background:var(--sky-soft);color:var(--primary)}.header-actions{display:flex;align-items:center;gap:8px}.icon-btn,.header-link{border:0;background:transparent;padding:8px 10px;border-radius:10px;color:var(--navy);cursor:pointer}.icon-btn:hover,.header-link:hover{background:#fff}.menu-toggle{display:none}.mega-strip{border-top:1px solid rgba(74,155,212,.08);background:rgba(255,255,255,.72)}.mega-strip .wrap{display:flex;gap:18px;padding:8px 0;overflow-x:auto;white-space:nowrap;font-size:13px;color:var(--text-2)}.mobile-menu{padding:16px 20px 24px;background:var(--cream);border-top:1px solid var(--line);display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.mobile-menu[hidden]{display:none!important}.mobile-menu a{padding:10px 12px;background:#fff;border-radius:10px}.search-modal{display:none;position:fixed;inset:0;z-index:1000;align-items:flex-start;justify-content:center;padding:8vh 20px;background:rgba(18,48,71,.58);backdrop-filter:blur(6px)}.search-modal.is-open{display:flex}.search-modal[hidden]{display:none!important}.search-dialog{width:min(760px,100%);background:var(--cream);border:1px solid var(--line-strong);border-radius:24px;padding:26px;box-shadow:0 30px 90px rgba(15,42,61,.22)}.search-dialog-head{display:flex;justify-content:space-between;gap:20px}.search-dialog h2{margin:4px 0 16px;font-size:clamp(24px,4vw,38px)}.search-close{width:42px;height:42px;border:0;border-radius:50%;background:#fff;color:var(--navy);font-size:28px;cursor:pointer}.search-form{display:flex;gap:10px}.search-form input{flex:1;min-width:0;padding:15px 16px;border:1px solid var(--line-strong);border-radius:14px;background:#fff;color:var(--text)}.search-suggestions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:18px;font-size:14px}.search-suggestions a{padding:6px 10px;background:var(--sky-soft);border-radius:999px}body.search-open{overflow:hidden}main{min-height:60vh}.eyebrow{display:inline-block;font-size:12px;letter-spacing:.12em;text-transform:uppercase;font-weight:900;color:var(--primary)}h1,h2,h3{line-height:1.18;color:var(--navy)}h1{font-size:clamp(38px,6vw,72px);letter-spacing:-.04em}h2{font-size:clamp(28px,4vw,46px);letter-spacing:-.025em}h3{font-size:19px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 18px;border-radius:12px;font-weight:800;border:1px solid transparent}.btn--primary{background:var(--primary);color:#fff}.btn--primary:hover{background:#3d8bc1}.btn--ghost{background:var(--cream);border-color:var(--line-strong);color:var(--navy)}.btn--live{background:var(--accent);color:#fff}.text-link{font-weight:800;color:var(--primary)}.page-hero{padding:64px 0 52px;background:linear-gradient(135deg,var(--cream) 0%,var(--bg) 55%,var(--sky-soft) 100%);overflow:hidden}.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(320px,5fr);gap:56px;align-items:center}.hero-copy p{font-size:18px;color:var(--text-2);max-width:760px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.hero-media{position:relative}.hero-media:before{content:"";position:absolute;inset:-24px 20% 30% -18px;border-radius:34px;background:var(--sky-light);z-index:-1;transform:rotate(-3deg)}.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:30px;box-shadow:var(--shadow)}section{padding:70px 0}.section--blue{background:var(--bg-blue)}.section--cream{background:var(--cream)}.section--dark{background:var(--navy);color:#eaf6fb}.section--dark h2,.section--dark h3,.section--dark .eyebrow{color:#fff}.section--dark .text-link{color:var(--sky)}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:26px}.section-head h2{margin:4px 0 6px}.section-head p{margin:0;color:var(--text-2);max-width:720px}.section--dark .section-head p{color:#c6dce9}.section-head--center{text-align:center;display:block}.section-head--center p{margin-inline:auto}.content-grid{display:grid;gap:20px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.video-card{background:var(--surface);border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);transition:transform .2s ease,box-shadow .2s ease}.video-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}.media-frame{display:block;position:relative;overflow:hidden;background:var(--sky-soft);aspect-ratio:16/9}.media-frame img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease}.video-card:hover .media-frame img{transform:scale(1.02)}.play-icon{position:absolute;left:14px;bottom:12px;width:38px;height:38px;display:grid;place-items:center;background:rgba(255,255,255,.9);border-radius:50%;color:var(--navy);transition:transform .2s}.video-card:hover .play-icon{transform:scale(1.05)}.duration{position:absolute;right:10px;bottom:10px;background:rgba(15,42,61,.78);color:#fff;border-radius:7px;padding:3px 7px;font-size:12px}.video-body{padding:16px}.video-body h3{margin:9px 0 8px}.video-body p{margin:0 0 14px;color:var(--text-2);font-size:14px}.meta-line,.author-line,.topic-meta{display:flex;justify-content:space-between;gap:12px;align-items:center;color:var(--text-3);font-size:12px}.chip{display:inline-flex;padding:4px 8px;border-radius:999px}.chip--soft{background:var(--sky-soft);color:var(--primary)}.reason{color:var(--accent)}.feature-layout{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(320px,.8fr);gap:24px}.feature-main .video-card{height:100%}.feature-main .video-card h3{font-size:26px}.rank-list{background:rgba(255,255,255,.75);border:1px solid var(--line);border-radius:20px;padding:12px}.compact-video{display:grid;grid-template-columns:auto 90px 1fr;gap:12px;align-items:center;padding:11px;border-bottom:1px solid var(--line)}.compact-video:last-child{border-bottom:0}.compact-video img{width:90px;aspect-ratio:16/10;object-fit:cover;border-radius:10px}.compact-video h3{font-size:14px;margin:2px 0}.compact-video p,.compact-video span{font-size:11px;color:var(--text-3);margin:0}.rank{font-size:22px;color:var(--primary);min-width:28px}.horizontal-track{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(280px,32%);gap:18px;overflow-x:auto;padding-bottom:10px;scroll-snap-type:x proximity}.horizontal-track>*{scroll-snap-align:start}.bento{display:grid;grid-template-columns:repeat(12,1fr);grid-auto-rows:150px;gap:18px}.bento>*{min-height:0}.bento .span-7{grid-column:span 7;grid-row:span 2}.bento .span-5{grid-column:span 5;grid-row:span 2}.bento .span-4{grid-column:span 4}.bento .video-card,.bento .media-frame{height:100%}.split-story{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}.split-story.reverse .story-media{order:2}.story-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:26px}.story-copy{padding:16px}.story-copy p{color:var(--text-2)}.live-stage{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(320px,.75fr);gap:24px}.live-card{background:#fff;border-radius:20px;overflow:hidden;border:1px solid var(--line)}.live-visual{position:relative;aspect-ratio:16/9;overflow:hidden}.live-visual img{width:100%;height:100%;object-fit:cover}.live-badge{position:absolute;left:12px;top:12px;padding:5px 9px;border-radius:999px;background:var(--accent);color:#fff;font-size:12px;font-weight:900}.live-status{position:absolute;right:12px;top:12px;padding:5px 9px;border-radius:999px;background:rgba(255,255,255,.9);font-size:12px}.live-body{padding:16px}.live-body h3{margin:9px 0}.live-body p{color:var(--text-2);font-size:14px}.anchor-track{display:grid;grid-auto-flow:column;grid-auto-columns:220px;gap:16px;overflow-x:auto;padding-bottom:10px}.anchor-card{background:var(--surface-cream);border:1px solid var(--line-warm);border-radius:20px;padding:16px}.anchor-card img{width:88px;height:88px;border-radius:50%;object-fit:cover;margin-bottom:12px}.anchor-card h3{margin:6px 0}.anchor-card p{font-size:13px;color:var(--text-2)}.anchor-card small{color:var(--text-3)}.anchor-direction{font-weight:800;color:var(--primary)!important}.status-dot{font-size:12px;color:var(--accent)}.topic-columns{columns:2;column-gap:22px}.topic-card{break-inside:avoid;margin:0 0 22px;background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px}.topic-user{display:flex;align-items:center;gap:10px}.avatar{width:38px;height:38px;display:grid;place-items:center;border-radius:50%;background:var(--sky-soft);color:var(--primary);font-weight:900}.topic-user div{display:flex;flex-direction:column}.topic-user span{font-size:12px;color:var(--text-3)}.topic-card h3{margin:14px 0 8px}.topic-card p{color:var(--text-2)}.tag-cloud{display:flex;gap:10px;flex-wrap:wrap}.tag-cloud a{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line)}.trend-list{display:grid;gap:10px}.trend-item{display:grid;grid-template-columns:40px 1fr auto;gap:12px;align-items:center;padding:13px 0;border-bottom:1px solid var(--line)}.trend-bar{height:6px;border-radius:999px;background:var(--sky-light);overflow:hidden}.trend-bar span{display:block;height:100%;background:var(--primary)}.editorial-note{padding:30px;border-radius:26px;background:linear-gradient(135deg,var(--cream),#fff);border:1px solid var(--line-warm)}.editorial-note p{font-size:18px;color:var(--navy-2)}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.step{position:relative;padding:22px;background:#fff;border:1px solid var(--line);border-radius:20px}.step strong{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--primary);color:#fff;margin-bottom:12px}.app-showcase{display:grid;grid-template-columns:minmax(320px,.9fr) 1.1fr;gap:50px;align-items:center}.phone-stage{position:relative;min-height:420px;display:grid;place-items:center}.phone-stage img{max-height:420px;border-radius:28px;box-shadow:var(--shadow)}.feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.feature-list article{padding:18px;background:#fff;border:1px solid var(--line);border-radius:18px}.faq-list{display:grid;gap:10px}.faq-item{border:1px solid var(--line);border-radius:16px;background:#fff;overflow:hidden}.faq-question{width:100%;display:flex;justify-content:space-between;gap:20px;padding:16px 18px;border:0;background:transparent;text-align:left;font-weight:800;color:var(--navy);cursor:pointer}.faq-answer{padding:0 18px 16px;color:var(--text-2)}.faq-answer[hidden]{display:none}.site-footer{background:var(--navy);color:#cfe2ed;padding:60px 0 30px}.footer-grid{display:grid;grid-template-columns:1.6fr repeat(4,1fr);gap:34px}.footer-grid h2{font-size:14px;color:#fff}.footer-grid>div:not(.footer-brand){display:flex;flex-direction:column;gap:8px}.footer-brand p{max-width:420px}.brand--footer{color:#fff}.footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:18px;font-size:13px}.mobile-bottom-nav{display:none}.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;transition:.2s;z-index:50}.back-top.is-visible{opacity:1;pointer-events:auto}.prose-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.prose-card{padding:24px;border-radius:20px;background:#fff;border:1px solid var(--line)}.prose-card p{color:var(--text-2)}.notice-box{padding:18px;border-left:4px solid var(--accent);background:var(--accent-soft);border-radius:0 16px 16px 0}.table-list{display:grid;gap:0;border:1px solid var(--line);border-radius:20px;overflow:hidden;background:#fff}.table-row{display:grid;grid-template-columns:70px 2fr 1fr 1fr;gap:12px;padding:14px 16px;border-bottom:1px solid var(--line);align-items:center}.table-row:last-child{border-bottom:0}.filter-chips{display:flex;gap:8px;overflow-x:auto;padding-bottom:8px}.filter-chips a,.filter-chips button{border:1px solid var(--line);background:#fff;padding:8px 12px;border-radius:999px;white-space:nowrap;cursor:pointer}.filter-chips .is-active{background:var(--primary);color:#fff}.search-results{display:grid;gap:14px}.search-result{padding:20px;border:1px solid var(--line);border-radius:18px;background:#fff}.search-result p{color:var(--text-2)}
@media (max-width:1020px){.desktop-nav,.mega-strip{display:none}.menu-toggle{display:inline-flex}.hero-grid,.feature-layout,.live-stage,.app-showcase{grid-template-columns:1fr}.hero-media{max-width:720px}.grid-4{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}.footer-brand{grid-column:1/-1}.bento{grid-template-columns:repeat(6,1fr)}.bento .span-7,.bento .span-5{grid-column:span 6}.bento .span-4{grid-column:span 3}.steps{grid-template-columns:repeat(2,1fr)}}
@media (max-width:720px){.wrap{width:min(100% - 28px,var(--wrap))}.top-notice{font-size:12px}.header-inner{height:64px}.header-link{display:none}.page-hero{padding:42px 0}.hero-grid{gap:26px}.hero-copy p{font-size:16px}section{padding:50px 0}.section-head{align-items:flex-start;flex-direction:column;gap:10px}.grid-2,.grid-3,.grid-4,.prose-grid{grid-template-columns:1fr}.horizontal-track{grid-auto-columns:84%}.topic-columns{columns:1}.split-story{grid-template-columns:1fr}.split-story.reverse .story-media{order:0}.anchor-track{grid-auto-columns:190px}.bento{display:grid;grid-template-columns:1fr;grid-auto-rows:auto}.bento .span-7,.bento .span-5,.bento .span-4{grid-column:auto;grid-row:auto}.steps,.feature-list{grid-template-columns:1fr}.table-row{grid-template-columns:44px 1fr}.table-row>*:nth-child(n+3){display:none}.footer-grid{grid-template-columns:1fr 1fr}.footer-bottom{flex-direction:column}.mobile-bottom-nav{display:grid;grid-template-columns:repeat(5,1fr);position:fixed;left:0;right:0;bottom:0;z-index:55;background:rgba(255,249,238,.96);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom-nav a{text-align:center;padding:10px 4px;font-size:12px}.site-footer{padding-bottom:90px}.search-form{flex-direction:column}.search-dialog{padding:20px}.header-actions{margin-left:auto}}