:root{color-scheme:dark;--ink:#202640;--pink:#ff98b7;--paper:#fffff2;--muted:#c5c7d2;--line:rgba(255,255,242,.2)}
*{box-sizing:border-box}html{background:var(--ink);scroll-behavior:smooth}body{margin:0;color:var(--paper);font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit}button,a,video{outline-offset:6px}button:focus-visible,a:focus-visible{outline:3px solid var(--pink)}button{cursor:pointer}a,button{touch-action:manipulation}.library-nav,.library-footer{display:flex;justify-content:space-between;align-items:center;gap:24px}.library-nav{max-width:1600px;margin:auto;padding:32px 5vw}.home-link{display:flex;align-items:center;gap:12px;font-weight:650}.home-link>span{display:grid;place-items:center;width:42px;height:42px;border:1px solid var(--line);border-radius:50%;font-size:25px;transition:background .2s,color .2s}.home-link:hover>span{background:var(--paper);color:var(--ink)}.nav-links{display:flex;gap:28px;font-size:14px}.nav-links a:hover{color:var(--pink)}main{max-width:1600px;margin:auto;padding:36px 5vw 90px}.library-heading{padding-bottom:72px}.eyebrow{font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--pink);margin:0 0 16px}.library-heading h1{display:flex;align-items:center;gap:4vw;flex-wrap:wrap;margin:0;font-size:clamp(54px,9.8vw,156px);font-weight:750;line-height:1.22;letter-spacing:-.065em;color:var(--pink)}.heading-symbol{display:inline-flex;align-items:center;justify-content:center;width:.8em;height:.8em;border:2px solid var(--pink);border-radius:50%;font-size:.75em;line-height:1;letter-spacing:0;transform:rotate(-10deg);flex-shrink:0}.book-symbol{border:0;font-size:.9em}.intro{margin:24px 0 0;font-size:clamp(16px,1.5vw,22px);line-height:1.7;color:var(--muted)}.section-label{display:flex;justify-content:space-between;gap:20px;padding:0 0 20px;border-bottom:1px solid var(--line);font-size:14px}.section-label>span:last-child{color:var(--muted)}.video-grid,.skill-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:40px 28px;padding-top:30px}.work-card{display:block;width:100%;text-align:left;border:0;padding:0;background:none}.poster{position:relative;aspect-ratio:16/9;background:#30374f;border-radius:5px;overflow:hidden;isolation:isolate}.poster img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s cubic-bezier(.2,.7,.2,1)}.poster:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(10,13,25,.35),transparent 55%);pointer-events:none}.play-circle{position:absolute;z-index:1;left:50%;top:50%;transform:translate(-50%,-50%);display:grid;place-items:center;width:64px;height:64px;border-radius:50%;color:var(--ink);background:var(--paper);box-shadow:0 4px 30px #0002;transition:transform .25s,background .25s}.play-circle svg{width:24px;height:24px;margin-left:4px;fill:currentColor}.duration{position:absolute;right:16px;bottom:16px;z-index:1;padding:6px 9px;border-radius:4px;color:var(--paper);background:#141b32c7;font-size:12px;letter-spacing:.06em}.work-card:hover .poster img{transform:scale(1.035)}.work-card:hover .play-circle{background:var(--pink);transform:translate(-50%,-50%) scale(1.08)}.card-meta{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;padding-top:18px}.card-meta h2{margin:0;font-size:clamp(21px,2.1vw,31px);line-height:1.45;font-weight:650;letter-spacing:-.04em}.card-meta p{margin:8px 0 0;font-size:13px;line-height:1.65;color:var(--muted)}.card-arrow{font-size:29px;line-height:1.3;color:var(--pink)}.card-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}.card-tags span{font-size:11px;line-height:1.5;padding:4px 9px;border:1px solid var(--line);border-radius:50px;color:var(--muted)}.empty-state{grid-column:1/-1;text-align:center;border:1px dashed var(--line);border-radius:8px;padding:60px 24px}.empty-icon{display:inline-block;color:var(--pink);font-size:55px;line-height:1}.empty-state h2{font-size:24px;font-weight:550}.empty-state p,.library-note{font-size:14px;line-height:1.8;color:var(--muted)}.skill-card{display:flex;flex-direction:column;position:relative;min-height:280px;padding:32px;text-align:left;border:1px solid var(--line);border-radius:5px;background:rgba(255,255,255,.025);transition:transform .25s,background .25s,border-color .25s}.skill-card:hover{transform:translateY(-5px);border-color:var(--pink);background:rgba(255,152,183,.05)}.skill-number{color:var(--pink);font-size:13px;font-weight:600;letter-spacing:.07em}.skill-card h2{margin:28px 0 12px;font-size:clamp(25px,2.8vw,40px);line-height:1.35;font-weight:650;letter-spacing:-.04em}.skill-card>p{margin:0;max-width:40em;color:var(--muted);font-size:15px;line-height:1.8}.skill-card-bottom{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;width:100%;margin-top:auto;padding-top:28px}.skill-card-bottom>span:first-child{color:var(--muted);font-size:12px;line-height:1.6}.skill-card-bottom>span:last-child{font-size:22px;color:var(--pink)}.library-footer{max-width:1600px;margin:auto;padding:32px 5vw 40px;border-top:1px solid var(--line);font-size:13px;line-height:1.8;color:var(--muted)}.library-footer>a{color:var(--pink)}.work-dialog{position:fixed;max-width:min(1060px,calc(100vw - 48px));width:100%;max-height:calc(100dvh - 48px);margin:auto;padding:20px 24px 24px;background:var(--ink);color:var(--paper);border:1px solid var(--line);border-radius:10px;box-shadow:0 25px 100px #0007;overscroll-behavior:contain}.work-dialog::backdrop{background:rgba(7,11,25,.85);backdrop-filter:blur(8px)}body.dialog-is-open{overflow:hidden}.dialog-top{display:flex;justify-content:space-between;align-items:center;gap:18px;margin:0 0 16px}.dialog-top h2{font-size:19px;line-height:1.5;font-weight:600;margin:0}.dialog-top .eyebrow{margin:0}.close-button{display:grid;place-items:center;flex:0 0 auto;width:42px;height:42px;border:1px solid var(--line);border-radius:50%;padding:0;background:transparent;font-size:31px;font-weight:300;line-height:1}.close-button:hover{background:var(--pink);color:var(--ink);border-color:var(--pink)}.video-player{display:block;width:100%;max-height:calc(100dvh - 235px);background:#000;border-radius:4px;aspect-ratio:16/9}.dialog-info{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-top:16px}.dialog-info p{margin:0;color:var(--muted);font-size:13px;line-height:1.7}.text-button{background:none;border:0;border-bottom:1px solid var(--pink);color:var(--pink);padding:2px 0 6px;font-size:13px;white-space:nowrap}.skill-dialog{max-width:min(800px,calc(100vw - 48px));padding:24px 32px 32px}.skill-body h2{color:var(--pink);font-size:clamp(28px,4vw,48px);letter-spacing:-.035em;line-height:1.35;margin:22px 0}.skill-summary{font-size:17px;line-height:1.85;color:var(--paper)}.detail-section{margin:30px 0}.detail-section h3{font-size:15px;margin:0 0 12px;color:var(--pink)}.detail-section p,.detail-section li{font-size:14px;line-height:1.9;color:var(--muted)}.detail-section ol,.detail-section ul{margin:0;padding-left:1.6em}.detail-section li+li{margin-top:7px}.source-note{border-top:1px solid var(--line);padding-top:20px;margin-top:30px;font-size:12px;line-height:1.8;color:var(--muted)}.detail-link{display:inline-block;border:1px solid var(--line);border-radius:30px;padding:10px 16px;font-size:13px}.detail-link:hover{border-color:var(--pink);color:var(--pink)}
.detail-link{margin:0 8px 10px 0}
@media(min-width:1440px){.skill-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:700px){.library-nav{padding:20px 6vw;gap:12px}.home-link{font-size:13px;gap:8px}.home-link>span{width:35px;height:35px;font-size:21px}.nav-links{gap:16px;font-size:12px}main{padding:32px 6vw 60px}.library-heading{padding-bottom:46px}.library-heading h1{font-size:clamp(48px,11.6vw,82px);gap:16px}.intro{font-size:15px;margin-top:17px}.eyebrow{font-size:11px;margin-bottom:16px}.video-grid,.skill-grid{grid-template-columns:1fr;gap:30px;padding-top:24px}.card-meta{padding-top:15px}.card-meta h2{font-size:24px}.play-circle{width:55px;height:55px}.skill-card{min-height:255px;padding:26px}.skill-card h2{font-size:31px}.library-footer{padding:25px 6vw 30px;align-items:flex-start;flex-direction:column;gap:10px;font-size:12px}.work-dialog{max-width:calc(100vw - 24px);max-height:calc(100dvh - 24px);padding:14px;border-radius:8px}.dialog-top{gap:10px;margin-bottom:12px}.dialog-top h2{font-size:16px}.close-button{width:38px;height:38px;font-size:28px}.video-player{max-height:calc(100dvh - 215px)}.dialog-info{gap:12px}.dialog-info p{font-size:12px}.skill-dialog{padding:20px}.skill-body h2{font-size:32px}.skill-summary{font-size:15px}.detail-section{margin:25px 0}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}

.skill-group-title{grid-column:1/-1;font-size:18px;color:#ff98b7;margin:22px 0 5px}.nav-links{flex-wrap:wrap}

/* Featured execution cases reuse the library palette and type. */
.featured-skill-section{margin-bottom:64px}.featured-skill-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;padding-top:28px}.skill-case{border-top:3px solid var(--pink);padding:24px;background:rgba(255,255,255,.025);min-width:0}.skill-case>h2{font-size:clamp(24px,2.2vw,34px);line-height:1.45;margin:12px 0 22px;letter-spacing:-.035em}.skill-case .eyebrow{font-size:11px}.skill-case-block{margin:16px 0}.skill-case-block h3{font-size:12px;color:var(--pink);margin:0 0 7px}.skill-case-block p{font-size:13px;line-height:1.9;color:var(--muted);margin:0}.skill-case .detail-link{margin-top:12px}.detail-section>summary{cursor:pointer;color:var(--pink);font-size:16px}.detail-section[open]>summary{margin-bottom:14px}body[data-library=skills] .library-heading{padding-bottom:42px}body[data-library=skills] .library-heading h1{font-size:clamp(54px,7vw,108px)}@media(max-width:1000px){.featured-skill-grid{grid-template-columns:1fr}.skill-case{padding:22px}.skill-case>h2{font-size:27px}.skill-case-block{margin:14px 0}}

.skill-case{display:flex;flex-direction:column}.skill-case-block p{font-size:14px}.skill-case>.detail-link{align-self:flex-start;margin-top:auto}