@charset "UTF-8";
:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;color:#edf0f6;background:#10141d;font-synthesis:none;--blue:#7395ff;--muted:#98a2b4;--line:#2b3343}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;line-height:1.7;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a{touch-action:manipulation}button{cursor:pointer}img{display:block;width:100%;object-fit:cover}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.25}button:focus-visible,a:focus-visible,input:focus-visible,video:focus-visible{outline:3px solid var(--blue);outline-offset:5px}[hidden]{display:none!important}.container{width:min(1180px,calc(100% - 80px));margin:auto}.skip-link{position:absolute;top:-100px;left:16px;background:#fff;color:#10141d;padding:12px;z-index:10}.skip-link:focus{top:10px}.site-header{border-bottom:1px solid var(--line)}.header-inner{min-height:90px;display:flex;align-items:center;justify-content:space-between;gap:30px}.brand{display:flex;align-items:center;gap:10px;font-size:27px;font-weight:800;letter-spacing:-1px}.brand-mark{display:grid;place-items:center;width:31px;height:34px;background:#6f94ff;color:#10141d;border-radius:7px;transform:rotate(-5deg);font-size:21px}.brand-dot{color:var(--blue)}.brand-divider{height:22px;width:1px;background:var(--line);margin:0 10px}.brand-channel{font-size:13px;font-weight:500;letter-spacing:1px;color:#a9b4c8}nav{display:flex;gap:32px;font-size:13px;color:var(--muted)}nav a:hover,.nav-current{color:#fff}.back-main{border-left:1px solid var(--line);padding-left:28px}.collection-intro{display:grid;grid-template-columns:1.5fr 1fr;align-items:center;gap:80px;padding:85px 0 78px}.eyebrow{font-size:10px;letter-spacing:2px;color:var(--muted);font-weight:600;display:flex;align-items:center;gap:9px;margin-bottom:25px}.eyebrow>span{width:6px;height:6px;border-radius:50%;background:var(--blue)}.collection-intro h1{font-size:clamp(36px,4.8vw,62px);letter-spacing:-2px;margin-bottom:28px}.collection-intro h1>span{color:var(--blue)}.intro-description{font-size:14px;color:#a9b3c3;line-height:1.9;margin-bottom:0}.collection-note{border:1px solid #303a4e;min-height:260px;max-width:335px;justify-self:end;padding:32px;position:relative;background:linear-gradient(140deg,#202b42,#151c2b);width:100%}.note-cross{position:absolute;right:22px;top:17px;font-size:28px;font-weight:200;color:#6c7f9f}.note-label{color:#8b9eba;font-size:9px;letter-spacing:3px}.collection-note p{font-size:28px;margin:30px 0 20px;line-height:1.45;letter-spacing:1px}.note-bottom{font-size:9px;letter-spacing:2px;color:#7786a0}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:30px}.section-heading .eyebrow{margin-bottom:12px}.section-heading h2{font-size:25px;letter-spacing:-.5px;margin:0}.section-heading h2 span{color:var(--blue)}.video-count{font-size:11px;white-space:nowrap;color:var(--muted)}.category-filters{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:30px}.category-button{background:transparent;color:#a3afc3;border:1px solid var(--line);border-radius:30px;padding:8px 18px;font-size:12px}.category-button:hover{border-color:#6981ad}.category-button.active{background:#dce5ff;color:#16264c;border-color:#dce5ff}.video-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:36px}.video-card{background:#171e2a;border:1px solid #2a3343;border-radius:14px;overflow:hidden;transition:transform .2s,border-color .2s}.video-card:hover{transform:translateY(-4px);border-color:#58709d}.video-thumbnail{position:relative;aspect-ratio:16/9;background:#233147;overflow:hidden}.video-thumbnail img{height:100%;transition:transform .4s}.video-card:hover img{transform:scale(1.035)}.thumbnail-play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);display:grid;place-items:center;background:#0b132cb0;border:1px solid #ffffff40;width:52px;height:52px;border-radius:50%;font-size:16px;padding-left:3px;backdrop-filter:blur(6px)}.thumbnail-duration{position:absolute;right:14px;bottom:13px;background:#080d18d9;font-size:11px;padding:3px 9px;border-radius:5px;font-variant-numeric:tabular-nums}.thumbnail-fallback{background:linear-gradient(135deg,#263b60,#172030)}.video-copy{padding:24px}.video-card-meta{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.video-category{font-size:10px;letter-spacing:1px;color:#a6bcff}.video-index{font-family:monospace;font-size:10px;color:#677994}.video-copy h3{font-size:22px;margin-bottom:10px;letter-spacing:-.4px}.video-summary{font-size:12px;color:var(--muted);line-height:1.8;margin-bottom:24px}.video-card-footer{border-top:1px solid var(--line);padding-top:16px;display:flex;justify-content:space-between;align-items:center;gap:10px}.video-tags{display:flex;gap:7px;flex-wrap:wrap}.video-tags span,.watch-tags span{font-size:10px;color:#9dacc6;background:#222d40;padding:3px 8px;border-radius:4px}.video-open{font-size:10px;white-space:nowrap;color:#c4d2f4}.filter-empty,.related-empty{font-size:13px;line-height:1.9;color:var(--muted);padding:15px 0}.load-state{padding:65px 0;text-align:center;color:var(--muted);font-size:14px}.loading-ring{display:block;width:26px;height:26px;margin:0 auto 20px;border:2px solid #34415b;border-top-color:var(--blue);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.error-state{border:1px solid var(--line);background:#171e2b;text-align:center;padding:55px 24px;border-radius:15px;margin-bottom:50px}.error-symbol{font-size:35px;color:var(--blue)}.error-state .eyebrow{justify-content:center;margin-top:20px}.error-state h2{font-size:26px}.error-state>p:not(.eyebrow){color:var(--muted);font-size:14px}.error-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:12px;margin-top:26px}.button{display:inline-flex;align-items:center;justify-content:center;gap:25px;border:1px solid var(--line);border-radius:7px;padding:12px 19px;font-size:12px;font-weight:600}.button-primary{background:#789aff;color:#101d39;border-color:#789aff}.button-secondary{background:transparent;color:#d2dbeb}.legacy-link{display:inline-block;font-size:11px;color:#8c9bb3;margin-top:28px}.watch{padding-top:36px}.back-link{font-size:12px;color:var(--muted);display:inline-block;margin-bottom:25px}.watch-layout{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:35px}.player-frame{background:#05070b;border:1px solid #2a354b;border-radius:12px;overflow:hidden;aspect-ratio:16/9;display:grid;place-items:center}.player-frame video{width:100%;max-height:100%;aspect-ratio:16/9}.watch-meta{display:flex;gap:18px;align-items:center;font-size:10px;color:var(--muted);margin:23px 0 14px}.watch-title-row{display:flex;align-items:start;justify-content:space-between;gap:20px}.watch-title-row h1{font-size:30px;letter-spacing:-.6px;margin-bottom:18px}.share-button{flex-shrink:0;background:transparent;border:1px solid var(--line);color:#c4d2eb;border-radius:7px;padding:8px 12px;font-size:11px}.watch-description{white-space:pre-line;font-size:14px;color:#a7b3c7;line-height:1.9}.watch-tags{display:flex;gap:7px;flex-wrap:wrap}.share-feedback{font-size:12px;color:#acc1ff;margin:18px 0}.share-field{display:block;width:100%;border:1px solid #43557a;color:#dce6ff;background:#171f30;padding:9px;margin-top:8px;border-radius:6px}.conversation-link{display:flex;justify-content:space-between;font-size:12px;border-top:1px solid var(--line);padding-top:22px;margin-top:30px;color:#b0c4f5}.watch-sidebar{border-left:1px solid var(--line);padding-left:28px}.watch-sidebar .eyebrow{font-size:8px;margin-bottom:14px}.watch-sidebar h2{font-size:17px;margin-bottom:25px}.related-card{display:block;margin-bottom:25px}.related-thumbnail{position:relative;aspect-ratio:16/9;border-radius:7px;overflow:hidden;background:#233147}.related-thumbnail img{height:100%}.related-thumbnail .thumbnail-play{width:32px;height:32px;font-size:10px}.related-thumbnail .thumbnail-duration{display:none}.related-copy h3{font-size:12px;margin:10px 0 3px}.related-duration{font-size:10px;color:var(--muted)}.sidebar-all{font-size:11px;color:#b0c4f5;display:flex;justify-content:space-between;padding-top:20px;border-top:1px solid var(--line)}.playback-error{font-size:13px;padding:12px;background:#412b30;color:#ffc7ca}.closing-note{display:grid;grid-template-columns:1fr 1.7fr 1fr;align-items:center;gap:25px;padding:50px 0;border-top:1px solid var(--line);margin-top:85px}.closing-index{font-size:10px;letter-spacing:3px;color:#6e80a1}.closing-note p{font-size:19px;line-height:1.7;margin:0;color:#b4c0d5}.closing-note a{font-size:11px;color:#a9bded;justify-self:end}footer{border-top:1px solid var(--line);padding:33px 0 40px}.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:10px;color:#71809a}.footer-brand{font-size:23px;letter-spacing:-1px;font-weight:800;color:#cbd6e9}.footer-inner>a:last-child{color:#91a6ca}@media(min-width:1400px){.video-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:900px){.container{width:calc(100% - 48px)}.collection-intro{gap:30px;padding:60px 0}.collection-note{max-width:275px;padding:25px}.collection-note p{font-size:24px}.watch-layout{grid-template-columns:minmax(0,1fr)}.watch-sidebar{border-left:0;border-top:1px solid var(--line);padding:30px 0 0}.related-videos{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.related-empty{grid-column:1/-1}.closing-note{grid-template-columns:1fr 2fr}.closing-note>a{grid-column:2;justify-self:start}}@media(max-width:600px){.container{width:calc(100% - 36px)}.header-inner{min-height:76px;gap:15px;flex-wrap:wrap;padding:17px 0}.brand{font-size:24px}.brand-channel{font-size:11px}.brand-divider{margin:0 3px}nav{gap:20px;font-size:11px;width:100%;justify-content:space-between}.back-main{padding-left:18px}.collection-intro{grid-template-columns:1fr;padding:42px 0 45px;gap:25px}.collection-intro h1{font-size:40px;letter-spacing:-1.3px;margin-bottom:20px}.collection-intro .eyebrow{font-size:8px;letter-spacing:1.6px}.collection-note{display:none}.section-heading{align-items:start}.section-heading h2{font-size:22px;max-width:265px}.section-heading .eyebrow{font-size:8px;letter-spacing:1.3px}.video-grid{grid-template-columns:1fr;gap:24px}.video-copy{padding:22px}.video-copy h3{font-size:21px}.category-filters{gap:8px;margin-bottom:24px}.category-button{font-size:11px;padding:7px 15px}.watch-title-row{flex-wrap:wrap;gap:0}.watch-title-row h1{font-size:25px;width:100%}.share-button{margin-bottom:18px}.watch-meta{gap:12px;flex-wrap:wrap}.related-videos{grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.closing-note{margin-top:50px;padding:30px 0;grid-template-columns:1fr;gap:15px}.closing-note p{font-size:18px}.closing-note>a{grid-column:auto;justify-self:start}.footer-inner{flex-wrap:wrap;font-size:10px;gap:16px}.footer-inner>span{order:3;width:100%}.footer-brand{font-size:23px}.error-actions{flex-direction:column}.error-state h2{font-size:23px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}