:root{--bg: #0a0a0a;--surface: #171717;--surface-raised: #262626;--border: #262626;--text: #fafafa;--muted: #a3a3a3;--faint: #737373;--accent: #ff4d67}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Hiragino Sans,Noto Sans JP,Segoe UI,sans-serif;line-height:1.7;-webkit-font-smoothing:antialiased}main{max-width:880px;margin:0 auto;padding:0 20px}.nav{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;padding:12px 20px;background:#0a0a0ad9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}.nav-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px}.app-icon{display:block;border:1px solid var(--border)}.nav-cta{color:var(--text);background:var(--surface-raised);border:1px solid var(--border);text-decoration:none;font-size:13px;font-weight:600;padding:8px 16px;border-radius:999px;transition:background .15s}.nav-cta:hover{background:#333}.hero{display:flex;flex-direction:column;align-items:center;text-align:center;gap:20px;padding:72px 0 64px}.hero .app-icon{box-shadow:0 12px 48px #ff4d6726}.hero h1{font-size:clamp(30px,6vw,48px);font-weight:900;letter-spacing:-.02em;line-height:1.25}.accent{color:var(--accent)}.lede{max-width:620px;color:var(--muted);font-size:15px}.badges{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}.store-badge{appearance:none;font:inherit;line-height:inherit;display:flex;flex-direction:column;align-items:center;gap:2px;min-width:150px;padding:10px 20px;border:1px solid var(--border);border-radius:12px;background:var(--surface);color:var(--muted);cursor:default;-webkit-user-select:none;user-select:none}.store-badge strong{color:var(--text);font-size:15px}.store-badge small{font-size:11px;color:var(--faint)}.cta{display:inline-block;background:var(--accent);color:#fff;text-decoration:none;font-weight:700;font-size:15px;padding:14px 28px;border-radius:999px;box-shadow:0 8px 24px #ff4d6759;transition:transform .15s}.cta:hover{transform:translateY(-2px)}.features{padding:24px 0 48px}.features h2,.demo h2{font-size:24px;font-weight:800;text-align:center;margin-bottom:28px}.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}.feature-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:20px;display:flex;flex-direction:column;gap:10px}.feature-card h3{font-size:16px;font-weight:700}.feature-card p{color:var(--muted);font-size:13px}.mock{background:var(--bg);border:1px solid var(--border);border-radius:12px;padding:14px;display:flex;flex-direction:column;gap:10px;min-height:120px;justify-content:center}.mock-row{display:flex;align-items:center;gap:10px}.mock-row i{font-style:normal;color:var(--faint);font-size:12px;width:12px;text-align:center}.mock-row b{width:28px;height:28px;border-radius:6px;background:linear-gradient(135deg,#333,#555);flex-shrink:0}.mock-row span{display:flex;flex-direction:column;gap:5px;flex:1}.mock-row em{display:block;height:7px;border-radius:4px;background:var(--surface-raised);width:80%}.mock-row em.short{width:50%;opacity:.6}.mock-row .heart{text-decoration:none;color:var(--accent);font-size:14px}.mock-art{width:56px;height:56px;border-radius:10px;background:linear-gradient(135deg,#333,#555);align-self:center}.mock-bar{height:4px;border-radius:2px;background:var(--surface-raised);overflow:hidden}.mock-bar b{display:block;width:55%;height:100%;border-radius:2px;background:var(--accent)}.mock-controls{display:flex;justify-content:center;align-items:center;gap:18px}.mock-controls s{width:12px;height:12px;border-radius:50%;background:var(--muted);text-decoration:none}.mock-controls s.big{width:24px;height:24px;background:var(--text)}.demo{padding:24px 0 48px}.demo-lede,.demo-note{text-align:center;color:var(--muted);font-size:13px}.demo-note{margin-top:16px;color:var(--faint);font-size:12px}.demo-loading,.demo-error{text-align:center;color:var(--muted);padding:32px 0}.demo-list{list-style:none;margin-top:20px;border:1px solid var(--border);border-radius:16px;overflow:hidden;background:var(--surface)}.demo-row{position:relative;display:grid;grid-template-columns:40px 20px 44px 1fr auto auto;align-items:center;gap:12px;padding:10px 16px;border-bottom:1px solid var(--border)}.demo-row:last-child{border-bottom:none}.demo-row.current{background:var(--surface-raised)}.demo-play{width:36px;height:36px;border-radius:50%;border:none;background:var(--text);color:var(--bg);font-size:12px;cursor:pointer;transition:transform .1s}.demo-play:hover{transform:scale(1.06)}.demo-play:disabled{background:var(--surface-raised);color:var(--faint);cursor:default;transform:none}.demo-row.playing .demo-play{background:var(--accent);color:#fff}.demo-rank{color:var(--faint);font-size:13px;text-align:center;font-variant-numeric:tabular-nums}.demo-art{border-radius:6px;background:var(--surface-raised)}.demo-meta{display:flex;flex-direction:column;min-width:0}.demo-meta strong{font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.demo-meta small{color:var(--muted);font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.demo-time{color:var(--faint);font-size:12px;font-variant-numeric:tabular-nums;min-width:86px;text-align:right}.demo-apple{color:var(--muted);font-size:12px;text-decoration:none;border:1px solid var(--border);padding:5px 10px;border-radius:999px;white-space:nowrap;transition:color .15s,border-color .15s}.demo-apple:hover{color:var(--text);border-color:var(--muted)}.demo-progress{position:absolute;left:0;bottom:-1px;height:2px;background:var(--accent)}.footer{border-top:1px solid var(--border);margin-top:32px;padding:28px 20px 40px;text-align:center;color:var(--faint);font-size:12px}.footer-sub{margin-top:6px}@media(max-width:560px){.demo-row{grid-template-columns:36px 18px 40px 1fr auto}.demo-time{display:none}}