: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}body.search-open{overflow:hidden}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input{font:inherit}button{color:inherit}.wrap{width:min(calc(100% - 40px),var(--wrap));margin-inline:auto}.skip-link{position:fixed;left:16px;top:-100px;z-index:9999;background:var(--navy);color:#fff;padding:10px 14px;border-radius:8px}.skip-link:focus{top:16px}.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-note{background:var(--cream-2);font-size:13px;border-bottom:1px solid var(--line-warm)}.top-note .wrap{min-height:36px;display:flex;gap:16px;align-items:center}.top-note span{font-weight:800;color:var(--navy)}.top-note p{margin:0;flex:1;color:var(--text-2)}.top-note a{font-weight:700;color:var(--primary)}
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,249,238,.9);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);box-shadow:0 4px 20px rgba(31,88,124,.04)}.header-inner{min-height:72px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:10px;min-width:max-content}.brand img{width:42px;height:42px;border-radius:14px;object-fit:cover}.brand strong{font-size:20px;letter-spacing:.04em}.brand small{display:block;font-size:9px;letter-spacing:.16em;color:var(--text-3)}.desktop-nav{display:flex;gap:5px;flex:1}.desktop-nav a{padding:10px 12px;border-radius:10px;color:var(--text-2);font-weight:650}.desktop-nav a:hover,.desktop-nav a.active{background:var(--sky-soft);color:var(--navy)}.header-actions{display:flex;align-items:center;gap:8px}.icon-btn,.soft-btn,.menu-toggle{border:1px solid var(--line-strong);background:rgba(255,255,255,.65);border-radius:var(--radius-pill);padding:9px 13px;display:inline-flex;align-items:center;gap:6px;cursor:pointer}.primary-btn{display:inline-flex;align-items:center;justify-content:center;border:0;background:var(--primary);color:#fff;border-radius:var(--radius-pill);padding:12px 18px;font-weight:800;cursor:pointer}.primary-btn:hover{background:var(--navy-2)}.primary-btn.small{padding:9px 14px}.mega-menu{background:rgba(255,253,248,.98);border-top:1px solid var(--line);box-shadow:var(--shadow)}.mega-menu[hidden]{display:none!important}.mega-grid{padding:28px 0;display:grid;grid-template-columns:repeat(4,1fr);gap:30px}.mega-grid>div{display:grid;gap:8px}.mega-grid span{font-size:12px;text-transform:uppercase;color:var(--text-3);font-weight:800}.mega-grid a{font-weight:700}.mega-grid a:hover{color:var(--primary)}
.search-modal{display:none;position:fixed;inset:0;z-index:999;background:rgba(23,52,74,.48);padding:5vh 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(760px,100%);margin-top:8vh;background:var(--cream-3);border:1px solid rgba(255,255,255,.8);border-radius:28px;padding:40px;box-shadow:0 30px 80px rgba(15,42,61,.2)}.search-close{position:absolute;top:18px;right:18px;width:42px;height:42px;border-radius:50%;border:1px solid var(--line-strong);background:#fff;cursor:pointer;font-size:24px}.search-dialog h2{font-size:clamp(30px,4vw,52px);margin:8px 0}.search-dialog>p{color:var(--text-2);max-width:580px}.search-form{display:flex;gap:10px;margin:28px 0}.search-form input{flex:1;min-width:0;border:1px solid var(--line-strong);background:#fff;border-radius:var(--radius-pill);padding:13px 18px;outline:none}.search-form input:focus{border-color:var(--primary);box-shadow:0 0 0 4px var(--sky-soft)}.search-suggestions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.search-suggestions span{font-size:12px;font-weight:800;color:var(--text-3)}.search-suggestions a{background:var(--sky-soft);padding:7px 12px;border-radius:var(--radius-pill);font-size:13px}.noscript-note{background:#fff4df;padding:12px 20px;text-align:center}
main{overflow:hidden}.section{padding:78px 0}.section.tight{padding:52px 0}.section.soft-blue{background:var(--bg-blue)}.section.cream{background:var(--bg-cream)}.section.dark{background:var(--navy);color:#fff}.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:30px}.section-head.compact{margin-bottom:18px}.section-head h2{font-size:clamp(28px,3.2vw,48px);line-height:1.12;margin:6px 0 0;letter-spacing:-.03em}.section-head p{color:var(--text-2);max-width:720px;margin:10px 0 0}.dark .section-head p{color:rgba(255,255,255,.7)}.section-eyebrow,.kicker{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--primary);font-weight:900}.dark .section-eyebrow,.dark .kicker{color:var(--sky)}.text-link{color:var(--primary);font-weight:800;white-space:nowrap}
.hero{padding:64px 0 74px;background:linear-gradient(135deg,var(--cream) 0%,#fffdf8 45%,var(--sky-soft) 100%);position:relative}.hero:before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:rgba(140,204,240,.16);right:-100px;top:-160px}.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:54px;align-items:center;position:relative}.hero-copy h1{font-size:clamp(44px,6.2vw,84px);line-height:.98;letter-spacing:-.055em;margin:12px 0 24px;max-width:850px}.hero-copy p{font-size:18px;color:var(--text-2);max-width:760px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0}.outline-btn{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line-strong);background:var(--cream);border-radius:var(--radius-pill);padding:11px 18px;font-weight:800}.hero-search{display:flex;max-width:620px;background:#fff;border:1px solid var(--line);padding:7px;border-radius:var(--radius-pill);box-shadow:var(--shadow)}.hero-search input{flex:1;border:0;outline:0;padding:8px 13px;background:transparent;min-width:0}.hero-visual{position:relative}.hero-visual>img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:34px;box-shadow:var(--shadow-hover)}.float-panel{position:absolute;background:rgba(255,255,255,.94);border:1px solid var(--line);border-radius:20px;padding:16px;box-shadow:var(--shadow);backdrop-filter:blur(10px)}.float-panel.top{right:-18px;top:28px}.float-panel.bottom{left:-26px;bottom:26px}.float-panel strong{display:block;font-size:24px}.float-panel small{color:var(--text-2)}
.chip-row{display:flex;gap:9px;overflow:auto;padding-bottom:6px;scrollbar-width:none}.chip-row::-webkit-scrollbar{display:none}.chip{flex:0 0 auto;border:1px solid var(--line-strong);background:rgba(255,255,255,.8);padding:9px 14px;border-radius:var(--radius-pill);font-size:13px;font-weight:750}.chip.active,.chip:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.video-grid.four{grid-template-columns:repeat(4,1fr)}.video-card{min-width:0}.video-thumb{position:relative;display:block;overflow:hidden;border-radius:var(--radius-card);background:var(--sky-light);aspect-ratio:16/9}.video-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}.video-card:hover .video-thumb img{transform:scale(1.02)}.play-icon{position:absolute;left:16px;bottom:14px;width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.9);color:var(--navy);transition:transform .2s}.video-card:hover .play-icon{transform:scale(1.06)}.duration{position:absolute;right:12px;bottom:12px;background:rgba(15,42,61,.78);color:#fff;padding:4px 8px;border-radius:8px;font-size:11px}.video-body{padding:14px 4px 0}.eyeline,.meta-row,.topic-meta{display:flex;justify-content:space-between;gap:10px;font-size:12px;color:var(--text-3)}.video-body h3,.live-body h3,.topic-card h3{font-size:18px;line-height:1.35;margin:7px 0}.video-body p,.live-body p,.topic-card p{margin:0 0 10px;color:var(--text-2);font-size:14px}.tag-row{display:flex;gap:6px;flex-wrap:wrap;margin-top:10px}.tag{font-size:10px;background:var(--sky-soft);color:var(--navy-2);padding:4px 8px;border-radius:var(--radius-pill)}
.editor-layout{display:grid;grid-template-columns:1.45fr 1fr;gap:26px}.feature-card{position:relative;min-height:480px;border-radius:28px;overflow:hidden;background:var(--navy);color:#fff}.feature-card>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.58}.feature-card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 25%,rgba(15,42,61,.9))}.feature-card .feature-copy{position:absolute;z-index:2;left:28px;right:28px;bottom:28px}.feature-card h3{font-size:36px;line-height:1.08;margin:10px 0}.feature-stack{display:grid;grid-template-columns:1fr 1fr;gap:16px}.feature-stack .mini-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:12px}.mini-card{display:grid;grid-template-columns:104px 1fr;gap:14px;align-items:center}.mini-card img{width:104px;aspect-ratio:16/10;object-fit:cover;border-radius:12px}.mini-card h3{font-size:15px;line-height:1.35;margin:4px 0}.mini-card span,.mini-card small{font-size:11px;color:var(--text-3)}.rank-num{font-size:24px;color:var(--primary)}.rank-list .mini-card{grid-template-columns:42px 104px 1fr;padding:14px 0;border-bottom:1px solid var(--line)}
.horizontal-track{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(280px,360px);gap:18px;overflow-x:auto;padding:2px 1px 16px;scroll-snap-type:x proximity}.horizontal-track>*{scroll-snap-align:start}.bento{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:190px;gap:16px}.bento .video-card:first-child{grid-column:span 2;grid-row:span 2}.bento .video-card:nth-child(4){grid-column:span 2}.bento .video-thumb{height:100%;aspect-ratio:auto}.bento .video-body{position:absolute;left:-9999px}
.live-stage{display:grid;grid-template-columns:1.65fr .8fr;gap:24px}.live-card{background:#fff;border:1px solid var(--line);border-radius:22px;overflow:hidden}.dark .live-card{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.12)}.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;background:var(--accent);color:#fff;padding:5px 9px;border-radius:var(--radius-pill);font-size:10px;font-weight:900;letter-spacing:.08em}.live-body{padding:18px}.live-column{display:grid;gap:14px}.live-column .live-card{display:grid;grid-template-columns:160px 1fr}.live-column .live-visual{aspect-ratio:auto;min-height:150px}.live-column .live-body p{display:none}
.anchor-track{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(220px,260px);gap:16px;overflow:auto;padding-bottom:12px}.anchor-card{border:1px solid var(--line);background:rgba(255,255,255,.7);border-radius:22px;padding:18px}.anchor-card>img{width:82px;height:82px;object-fit:cover;border-radius:50%;border:4px solid var(--sky-soft);margin-bottom:14px}.anchor-card h3{margin:6px 0 0}.anchor-card strong{font-size:12px;color:var(--primary)}.anchor-card p{font-size:13px;color:var(--text-2)}.anchor-card small{color:var(--text-3)}.status-dot{font-size:10px;color:var(--accent);font-weight:900}.anchor-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.topic-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.topic-card{display:grid;grid-template-columns:44px 1fr;gap:14px;padding:22px;border-radius:20px;background:#fff;border:1px solid var(--line)}.avatar{width:44px;height:44px;border-radius:50%;background:var(--sky-soft);display:grid;place-items:center;color:var(--navy);font-weight:900}.timeline{border-left:2px solid var(--sky-light);margin-left:12px;padding-left:24px;display:grid;gap:20px}.timeline .topic-card{position:relative;border:0;padding:0;background:transparent}.timeline .topic-card:before{content:"";position:absolute;left:-31px;top:10px;width:12px;height:12px;border-radius:50%;background:var(--primary);border:3px solid var(--bg)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}.split.reverse>div:first-child{order:2}.split-image{border-radius:28px;overflow:hidden;min-height:380px}.split-image img{width:100%;height:100%;object-fit:cover}.split-copy h2{font-size:clamp(32px,4vw,58px);line-height:1.06;margin:10px 0 18px}.split-copy p{color:var(--text-2)}.quote-note{border-left:3px solid var(--primary);padding-left:18px;color:var(--text-2);font-size:17px}.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:22px;background:#fff;overflow:hidden}.stat-strip>div{padding:24px;border-right:1px solid var(--line)}.stat-strip>div:last-child{border-right:0}.stat-strip strong{font-size:28px;display:block;color:var(--navy)}.stat-strip span{font-size:12px;color:var(--text-3)}
.trend-list{display:grid;gap:14px}.trend-row{display:grid;grid-template-columns:170px 1fr 120px;gap:16px;align-items:center;padding:14px 0;border-bottom:1px solid var(--line)}.trend-bar{height:8px;background:var(--sky-soft);border-radius:99px;overflow:hidden}.trend-bar i{display:block;height:100%;background:var(--primary);border-radius:99px}.trend-row small{color:var(--text-3);text-align:right}.tag-cloud{display:flex;flex-wrap:wrap;gap:10px}.tag-cloud a{padding:10px 15px;border-radius:999px;background:#fff;border:1px solid var(--line);font-weight:700}.tag-cloud a:nth-child(3n){font-size:18px;background:var(--cream-2)}.tag-cloud a:nth-child(4n){background:var(--sky-soft);color:var(--navy)}
.story-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.story-card{min-height:300px;position:relative;border-radius:24px;overflow:hidden;color:#fff}.story-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.story-card:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent,rgba(15,42,61,.92))}.story-card div{position:absolute;z-index:2;left:20px;right:20px;bottom:20px}.story-card h3{font-size:22px;margin:5px 0}.story-card p{font-size:13px;margin:0;color:rgba(255,255,255,.8)}
.tutorial-grid,.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.tutorial-card,.service-card{padding:22px;border-radius:20px;background:#fff;border:1px solid var(--line)}.tutorial-card h3,.service-card h3{margin:8px 0}.tutorial-card p,.service-card p{font-size:13px;color:var(--text-2)}.tutorial-card small{color:var(--text-3)}
.app-showcase{display:grid;grid-template-columns:1fr 1.1fr;gap:50px;align-items:center}.phone-stage{position:relative;min-height:520px;display:grid;place-items:center;background:linear-gradient(135deg,var(--sky-soft),var(--cream-2));border-radius:32px}.phone-stage img{max-height:480px;border-radius:28px}.phone-stage img:first-child{position:absolute;width:72%;height:78%;object-fit:cover;opacity:.35}.phone-stage img:last-child{position:relative;width:54%;height:88%;object-fit:cover;box-shadow:var(--shadow-hover)}.step-list{display:grid;gap:10px;counter-reset:steps}.step{counter-increment:steps;display:grid;grid-template-columns:46px 1fr;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}.step:before{content:counter(steps);width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:var(--sky-soft);font-weight:900;color:var(--primary)}.step h3{margin:0}.step p{margin:4px 0;color:var(--text-2);font-size:14px}
.page-hero{padding:72px 0 52px;background:linear-gradient(130deg,var(--cream),var(--sky-soft))}.page-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}.page-hero h1{font-size:clamp(44px,6vw,78px);line-height:1;margin:10px 0 20px;letter-spacing:-.05em}.page-hero p{font-size:17px;color:var(--text-2);max-width:760px}.page-hero img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:28px}.info-banner{display:flex;gap:24px;align-items:center;padding:26px;background:var(--cream-2);border:1px solid var(--line-warm);border-radius:22px}.info-banner strong{font-size:20px}.info-banner p{margin:0;color:var(--text-2)}
.faq-list{display:grid;gap:10px}.faq-item{border:1px solid var(--line);background:#fff;border-radius:16px;overflow:hidden}.faq-question{width:100%;border:0;background:transparent;padding:18px 20px;display:flex;justify-content:space-between;text-align:left;font-weight:800;cursor:pointer}.faq-answer{padding:0 20px 18px;color:var(--text-2)}.faq-answer[hidden]{display:none!important}.faq-answer p{margin:0}.search-results{display:grid;gap:12px}.search-result{padding:20px;border:1px solid var(--line);border-radius:18px;background:#fff}.search-result span{font-size:11px;color:var(--primary);font-weight:800}.search-result h2{font-size:20px;margin:6px 0}.search-result p{margin:0;color:var(--text-2)}
.media-player{background:var(--navy);border-radius:28px;padding:26px;color:#fff}.player-frame{aspect-ratio:16/9;background:#0f2a3d;border-radius:18px;display:grid;place-items:center;overflow:hidden}.player-placeholder{text-align:center;color:rgba(255,255,255,.72)}.player-placeholder span{display:grid;place-items:center;width:78px;height:78px;border-radius:50%;background:#fff;color:var(--navy);margin:0 auto 12px;font-size:28px}.watch-layout{display:grid;grid-template-columns:1.6fr .7fr;gap:28px}.prose{max-width:820px}.prose h2{font-size:32px;margin-top:42px}.prose p{color:var(--text-2)}.notice{padding:18px;border-radius:16px;background:var(--accent-soft);border:1px solid var(--line-warm)}
.site-footer{background:var(--navy);color:#fff;padding:64px 0 90px}.footer-grid{display:grid;grid-template-columns:1.8fr repeat(4,1fr);gap:36px}.footer-grid>div{display:grid;align-content:start;gap:9px}.footer-grid h3{font-size:13px;color:var(--sky);margin:0 0 8px}.footer-grid a{color:rgba(255,255,255,.78);font-size:14px}.footer-brand p{color:rgba(255,255,255,.62);max-width:410px}.brand.inverse small{color:rgba(255,255,255,.55)}.footer-cta{font-weight:800!important;color:#fff!important}.footer-bottom{margin-top:46px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);display:flex;gap:24px;flex-wrap:wrap;color:rgba(255,255,255,.48);font-size:12px}.mobile-bottom-nav{display:none}.back-top{position:fixed;right:22px;bottom:22px;width:46px;height:46px;border:0;border-radius:50%;background:var(--navy);color:#fff;box-shadow:var(--shadow-hover);opacity:0;pointer-events:none;transition:.2s;z-index:90}.back-top.visible{opacity:1;pointer-events:auto}
@media (max-width:1100px){.desktop-nav{display:none}.header-actions{margin-left:auto}.hero-grid,.page-hero-grid,.split,.app-showcase{grid-template-columns:1fr}.hero-visual{max-width:700px}.video-grid.four,.anchor-grid,.tutorial-grid,.service-grid{grid-template-columns:repeat(2,1fr)}.editor-layout,.live-stage,.watch-layout{grid-template-columns:1fr}.feature-stack{grid-template-columns:repeat(4,1fr)}.feature-stack .mini-card{display:block}.feature-stack .mini-card img{width:100%;margin-bottom:8px}.bento{grid-template-columns:repeat(3,1fr)}.footer-grid{grid-template-columns:2fr repeat(2,1fr)} }
@media (max-width:760px){body{padding-bottom:64px}.wrap{width:min(calc(100% - 28px),var(--wrap))}.top-note p,.top-note a,.soft-btn,.header-actions .primary-btn{display:none}.header-inner{min-height:62px}.brand img{width:36px;height:36px}.brand strong{font-size:18px}.icon-btn span:last-child,.menu-toggle span{display:none}.section{padding:54px 0}.hero{padding:42px 0}.hero-grid{gap:30px}.hero-copy h1{font-size:48px}.hero-copy p{font-size:16px}.hero-visual>img{aspect-ratio:16/12}.float-panel.top{right:8px}.float-panel.bottom{left:8px}.section-head{align-items:start;flex-direction:column;gap:10px}.video-grid,.video-grid.four{grid-template-columns:1fr 1fr;gap:14px}.video-body p{display:none}.video-body h3{font-size:15px}.editor-layout{gap:14px}.feature-card{min-height:360px}.feature-card h3{font-size:28px}.feature-stack{display:grid;grid-auto-flow:column;grid-auto-columns:72%;grid-template-columns:none;overflow:auto}.bento{display:flex;overflow:auto}.bento .video-card{flex:0 0 82%}.bento .video-thumb{aspect-ratio:16/10}.live-column .live-card{grid-template-columns:120px 1fr}.anchor-grid{display:flex;overflow:auto}.anchor-grid .anchor-card{flex:0 0 76%}.topic-grid{grid-template-columns:1fr}.story-grid{display:grid;grid-auto-flow:column;grid-auto-columns:82%;grid-template-columns:none;overflow:auto}.tutorial-grid,.service-grid{grid-template-columns:1fr 1fr}.stat-strip{grid-template-columns:1fr 1fr}.stat-strip>div:nth-child(2){border-right:0}.trend-row{grid-template-columns:120px 1fr}.trend-row small{display:none}.mega-grid{grid-template-columns:1fr 1fr}.search-dialog{padding:30px 22px}.search-form{flex-direction:column}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.mobile-bottom-nav{position:fixed;display:grid;grid-template-columns:repeat(5,1fr);left:10px;right:10px;bottom:8px;z-index:95;background:rgba(255,253,248,.95);border:1px solid var(--line);border-radius:20px;padding:7px;box-shadow:var(--shadow-hover);backdrop-filter:blur(14px)}.mobile-bottom-nav a{font-size:10px;display:grid;place-items:center;gap:2px;color:var(--text-2)}.mobile-bottom-nav a span{font-size:16px}.mobile-bottom-nav a[aria-current="page"]{color:var(--primary);font-weight:900}.back-top{bottom:82px}.page-hero h1{font-size:48px}.page-hero img{aspect-ratio:16/10}.split.reverse>div:first-child{order:0}.phone-stage{min-height:420px}}
@media (max-width:480px){.video-grid,.video-grid.four,.tutorial-grid,.service-grid{grid-template-columns:1fr}.video-body p{display:block}.footer-grid{grid-template-columns:1fr}.feature-stack{grid-auto-columns:84%}.hero-copy h1,.page-hero h1{font-size:40px}}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}