.detail-hero{border-bottom:1px solid var(--color-hair);padding:0 0 clamp(24px,3vh,36px);position:relative}.detail-hero-inner{max-width:780px}.detail-hero h1{letter-spacing:-.02em;margin:0;font-size:clamp(26px,3.4vw,40px);line-height:1.12}.detail-head{max-width:820px;margin-bottom:clamp(28px,4vw,44px)}.detail-head h1{letter-spacing:-.03em;margin:14px 0 0;font-size:clamp(30px,4.4vw,52px);line-height:1.08}.detail-hook{max-width:56ch;color:var(--color-muted);margin-top:18px;font-size:clamp(15px,1.5vw,18px);line-height:1.6}.detail-byline{font-family:var(--font-display);color:var(--color-muted);margin:8px 0 0;font-size:15px}.detail-byline span{color:var(--color-primary);font-weight:600}.course-stats{border-top:1px solid var(--color-hair);flex-wrap:wrap;margin:clamp(28px,3.6vh,40px) 0 0;padding-top:clamp(24px,3vh,30px);display:flex}.course-stats>div{border-right:1px solid var(--color-hair);flex-direction:column-reverse;margin-right:clamp(24px,3.2vw,46px);padding-right:clamp(24px,3.2vw,46px);display:flex}.course-stats>div:last-child{border-right:none;margin-right:0;padding-right:0}.course-stats dt{font-family:var(--font-display);letter-spacing:-.01em;color:var(--color-ink);font-size:clamp(18px,2vw,23px);font-weight:600}.course-stats dd{color:var(--color-muted);margin:0 0 7px;font-size:12.5px;font-weight:500}.chip-row{flex-wrap:wrap;gap:10px;margin-top:24px;display:flex}.chip{border:1px solid var(--color-hair);font-family:var(--font-display);color:var(--color-muted);border-radius:999px;align-items:center;gap:8px;padding:8px 15px;font-size:13px;font-weight:500;display:inline-flex}.chip b{color:var(--color-ink);font-weight:600}.detail-grid{grid-template-columns:minmax(0,1fr) 380px;align-items:start;gap:clamp(40px,5vw,88px);margin-top:0;display:grid}.detail-main{min-width:0;max-width:720px}.detail-main>p{margin-bottom:20px;font-size:16.5px;line-height:1.8}.detail-h2{letter-spacing:-.02em;margin:clamp(40px,5vh,54px) 0 20px;font-size:clamp(22px,2.4vw,30px)}.check-list{gap:12px;margin:0;padding:0;list-style:none;display:grid}.check-list li{padding-left:32px;font-size:15.5px;line-height:1.6;position:relative}.check-list li:before{content:"✓";background:var(--color-primary-wash);width:21px;height:21px;color:var(--color-primary);border-radius:50%;place-items:center;font-size:12px;font-weight:700;display:grid;position:absolute;top:0;left:0}.detail-points{grid-template-columns:1fr 1fr;gap:12px;margin:0;padding:0;list-style:none;display:grid}.detail-points li{border:1px solid var(--color-hair);background:var(--color-surface);border-radius:14px;align-items:center;gap:14px;padding:14px 16px;font-size:15px;line-height:1.5;transition:border-color .2s,background .2s;display:flex}.detail-points li:hover{border-color:var(--color-primary-ring);background:var(--color-primary-wash)}.point-ic{border:1px solid var(--color-primary-ring);background:var(--color-surface);width:40px;height:40px;color:var(--color-primary);border-radius:11px;flex:none;place-items:center;display:grid}.point-ic svg{width:20px;height:20px}@media (max-width:560px){.detail-points{grid-template-columns:1fr}}.phase-list{gap:12px;margin:0;padding:0;list-style:none;display:grid}.phase{border:1px solid var(--color-hair);background:var(--color-surface);border-radius:14px;grid-template-columns:48px 1fr;align-items:start;gap:16px;padding:18px;transition:border-color .2s,background .2s;display:grid}.phase:hover{border-color:var(--color-primary-ring);background:var(--color-primary-wash)}.phase i{border:1px solid var(--color-primary-ring);width:48px;height:48px;font-style:normal;font-family:var(--font-display);color:var(--color-primary);background:var(--color-surface);border-radius:12px;place-items:center;font-size:16px;font-weight:600;display:grid}.phase i svg{width:22px;height:22px}.phase b{font-family:var(--font-display);letter-spacing:-.01em;font-size:18px;font-weight:600;display:block}.phase p{color:var(--color-muted);margin-top:6px;font-size:14.5px;line-height:1.6}.buy-card{border:1px solid var(--color-primary-ring);background:var(--color-surface);box-shadow:0 24px 60px -32px var(--color-glow);border-radius:24px;position:sticky;top:104px;overflow:hidden}.buy-cover{aspect-ratio:16/10;background:var(--color-surface-alt);position:relative}.buy-cover img{object-fit:cover}.buy-cover.is-contain{background:radial-gradient(380px 220px at 50% 115%, var(--color-primary-wash), transparent 70%), var(--color-surface-alt)}.buy-cover.is-contain img{object-fit:contain;padding:18px}.buy-body{padding:clamp(22px,2.2vw,28px)}.buy-price{font-family:var(--font-display);flex-direction:column;align-items:flex-start;gap:4px;display:flex}.buy-price b{letter-spacing:-.01em;color:var(--color-primary);font-size:clamp(28px,2.6vw,34px);font-weight:600}.buy-price s{color:var(--color-muted);font-size:16px}.buy-price small{font-family:var(--font-body);color:var(--color-muted);font-size:13px}.buy-list{gap:9px;margin:18px 0 0;padding:0;list-style:none;display:grid}.buy-list li{color:var(--color-muted);padding-left:24px;font-size:13.5px;line-height:1.55;position:relative}.buy-list li:before{content:"✓";color:var(--color-primary);font-size:12px;font-weight:700;position:absolute;left:0}.buy-actions{gap:10px;margin-top:22px;display:grid}.buy-actions .btn{justify-content:center}.buy-note{color:var(--color-muted);text-align:center;margin-top:14px;font-size:12.5px}.course-tst{margin-top:clamp(40px,5vh,60px)}.course-tst-head{justify-content:space-between;align-items:center;gap:16px;display:flex}.course-tst-head .detail-h2{margin:0}.tst-nav{flex:none;gap:8px;display:flex}.tst-nav button{border:1px solid var(--color-hair);background:var(--color-surface);width:40px;height:40px;color:var(--color-ink);cursor:pointer;border-radius:999px;place-items:center;font-size:20px;line-height:1;transition:color .2s,border-color .2s;display:grid}.tst-nav button:hover{color:var(--color-primary);border-color:var(--color-primary)}.course-tst-rail{scroll-snap-type:x mandatory;scrollbar-width:none;-webkit-overflow-scrolling:touch;gap:16px;margin-top:20px;padding-bottom:4px;display:flex;overflow-x:auto}.course-tst-rail::-webkit-scrollbar{display:none}.tst-video{scroll-snap-align:start;aspect-ratio:3/4;text-align:left;color:#fff;cursor:pointer;isolation:isolate;background-position:50%;background-size:cover;border:0;border-radius:18px;flex:0 0 clamp(238px,80%,280px);padding:16px;display:block;position:relative;overflow:hidden}.tst-video:after{content:"";z-index:-1;background:linear-gradient(#00000026 0%,#00000059 45%,#000000d9 100%);transition:background .3s;position:absolute;inset:0}.tst-video:hover:after{background:linear-gradient(#c4243440 0%,#00000073 45%,#000000e6 100%)}.tst-play{width:44px;height:44px;color:var(--color-primary);background:#ffffffeb;border-radius:999px;place-items:center;padding-left:3px;font-size:16px;transition:transform .3s;display:grid;position:absolute;top:16px;right:16px;box-shadow:0 10px 24px -10px #0009}.tst-video:hover .tst-play{transform:scale(1.1)}.tst-msg{font-size:15px;font-weight:500;line-height:1.5;position:absolute;bottom:70px;left:16px;right:16px}.tst-foot{align-items:center;gap:10px;display:flex;position:absolute;bottom:16px;left:16px;right:16px}.tst-av{background:var(--color-primary);color:#fff;width:38px;height:38px;font-family:var(--font-display);border-radius:999px;flex:none;place-items:center;font-size:14px;font-weight:600;display:grid}.tst-meta{flex-direction:column;line-height:1.25;display:flex}.tst-meta b{font-family:var(--font-display);font-size:14.5px;font-weight:600}.tst-meta small{opacity:.82;font-size:12px}@media (max-width:720px){.tst-nav{display:none}.course-tst-rail{scroll-snap-type:none;flex-direction:column;overflow-x:visible}.tst-video{aspect-ratio:16/10;flex:none;width:100%}}.post-related{border-top:1px solid var(--color-hair);margin-top:clamp(44px,6vh,72px);padding-top:clamp(28px,4vh,40px)}.post-related h2{letter-spacing:-.02em;margin:0 0 4px;font-size:clamp(20px,2.2vw,26px)}@media (max-width:980px){.detail-grid{grid-template-columns:1fr}.detail-main{max-width:none}.buy-card{order:-1;width:100%;max-width:520px;margin:0 auto;position:static}}@media (max-width:560px){.course-stats>div{border-right:none;flex:1 0 40%;margin-bottom:14px;margin-right:18px;padding-right:18px}.routine-table th,.routine-table td{padding:9px 10px;font-size:13px}.routine-table th{width:42%}}.spec-table{border-top:1px solid var(--color-hair);margin:0}.spec-table>div{border-bottom:1px solid var(--color-hair);grid-template-columns:140px 1fr;gap:16px;padding:13px 0;font-size:14.5px;display:grid}@media (max-width:440px){.spec-table>div{grid-template-columns:1fr;gap:4px}}.spec-table dt{color:var(--color-muted)}.spec-table dd{font-family:var(--font-display);margin:0;font-weight:500}.hl-grid{grid-template-columns:repeat(2,1fr);gap:14px;display:grid}.hl-card{border:1px solid var(--color-hair);background:var(--color-surface);border-radius:18px;padding:20px 22px;transition:border-color .4s,background .4s}.hl-card:hover{border-color:var(--color-primary-ring);background:var(--color-primary-wash)}.hl-card b{font-family:var(--font-display);letter-spacing:-.01em;font-size:16.5px;font-weight:600;display:block}.hl-card p{color:var(--color-muted);margin-top:6px;font-size:13.5px;line-height:1.6}@media (max-width:640px){.hl-grid{grid-template-columns:1fr}}.buy-price-offer{align-items:baseline;gap:10px;display:flex}.detail-tabs{margin-top:28px}.tab-panel{min-height:320px}.tab-panel:not([hidden]){animation:.18s tab-fade}@keyframes tab-fade{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.tab-strip{scrollbar-width:none;-webkit-overflow-scrolling:touch;gap:10px;margin-bottom:26px;display:flex;overflow-x:auto}.tab-strip::-webkit-scrollbar{display:none}.tab-btn{appearance:none;border:1px solid var(--color-hair);background:var(--color-surface-alt);font-family:var(--font-display);color:var(--color-muted);cursor:pointer;white-space:nowrap;border-radius:999px;align-items:center;padding:13px 26px;font-size:16.5px;font-weight:600;line-height:1;transition:color .2s,background .2s,border-color .2s;display:inline-flex}.tab-btn:hover{color:var(--color-ink);border-color:var(--color-primary)}.tab-btn.is-active{color:#fff;background:var(--color-primary);border-color:var(--color-primary)}.tab-panel-title{font-family:var(--font-display);letter-spacing:-.01em;color:var(--color-primary-deep);margin:0 0 12px;font-size:17px;font-weight:600}.buy-cover-btn{cursor:pointer;background:0 0;border:0;width:100%;height:100%;padding:0;display:block;position:absolute;inset:0}.buy-cover-btn:after{content:"";opacity:.85;background:linear-gradient(#00000029 0%,#0000 38%,#00000047 100%);transition:opacity .3s;position:absolute;inset:0}.buy-cover-btn:hover:after{opacity:1}.buy-play{z-index:2;width:58px;height:58px;color:var(--color-primary);background:#ffffffeb;border-radius:999px;place-items:center;padding-left:4px;font-size:20px;transition:transform .3s;display:grid;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);box-shadow:0 12px 30px -10px #00000080}.buy-cover-btn:hover .buy-play{transform:translate(-50%,-50%)scale(1.1)}.buy-watch{z-index:2;pointer-events:none;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);color:#fff;font-family:var(--font-display);background:#1111119e;border-radius:999px;padding:6px 12px;font-size:11.5px;font-weight:600;position:absolute;top:12px;right:12px}.routine-table{border-collapse:collapse;width:100%;margin-top:16px;font-size:14px}.routine-table th,.routine-table td{text-align:left;vertical-align:top;border-bottom:1px solid var(--color-hair);padding:10px 12px;line-height:1.55}.routine-table th{white-space:nowrap;color:var(--color-ink);width:38%;font-weight:600}.routine-table td{color:var(--color-muted)}.routine-note{background:var(--color-primary-wash);color:var(--color-ink);border-radius:10px;margin-top:12px;padding:12px 14px;font-size:13.5px;line-height:1.6}