*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;overflow:hidden}#app{position:fixed;top:0;right:0;bottom:0;left:0;font-family:PingFang SC,Microsoft YaHei,sans-serif}#scene{width:100%;height:100%;display:block}.title{position:absolute;top:22px;left:26px;color:#3d3a33;-webkit-user-select:none;user-select:none;pointer-events:none}.title h1{font-size:22px;letter-spacing:6px;font-weight:600}.title p{font-size:12px;letter-spacing:3px;margin-top:4px;color:#6f6a5e}.stage-label{position:absolute;top:24px;right:28px;color:#e0b33a;font-size:16px;letter-spacing:4px;font-weight:600;text-shadow:0 1px 2px rgba(0,0,0,.25);-webkit-user-select:none;user-select:none;pointer-events:none;transition:opacity .3s}.panel{position:absolute;left:0;right:0;bottom:0;padding:14px 24px 18px;background:linear-gradient(to top,#f3efe7f2,#f3efe7d1);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);border-top:1px solid rgba(0,0,0,.08)}.narration{min-height:40px;color:#3d3a33;font-size:14px;line-height:1.7;text-align:center;white-space:pre-line;max-width:640px;margin:0 auto 10px}.slider-row{display:flex;align-items:center;gap:12px;max-width:640px;margin:0 auto}.slider-end{font-size:11px;color:#8a8577;letter-spacing:2px;white-space:nowrap}#play-btn{border:1px solid #d5cfc2;border-radius:999px;padding:5px 14px;background:#f3efe7;color:#6f6a5e;font-size:12px;letter-spacing:2px;cursor:pointer;white-space:nowrap;transition:all .2s}#play-btn:hover{border-color:#e0b33a;color:#b98f22}#progress{flex:1;-webkit-appearance:none;-moz-appearance:none;appearance:none;height:4px;border-radius:2px;background:linear-gradient(to right,#e0b33a var(--fill, 0%),#d5cfc2 var(--fill, 0%));outline:none;cursor:pointer}#progress::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:#e0b33a;border:3px solid #f3efe7;box-shadow:0 1px 4px #00000040;cursor:grab}#progress::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:#e0b33a;border:3px solid #f3efe7;box-shadow:0 1px 4px #00000040;cursor:grab}.stage-dots{display:flex;justify-content:center;gap:14px;margin-top:10px}.dot{width:9px;height:9px;border-radius:50%;background:#d5cfc2;border:none;cursor:pointer;padding:0;transition:all .25s}.dot:hover{background:#b8b1a1}.dot.active{background:#e0b33a;transform:scale(1.25)}#reset-view{position:absolute;top:54px;right:28px;width:32px;height:32px;border-radius:8px;border:1px solid rgba(0,0,0,.12);background:#f3efe7d9;color:#6f6a5e;font-size:16px;cursor:pointer;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);transition:all .2s}#reset-view:hover{border-color:#e0b33a;color:#b98f22}#info-card{position:absolute;top:96px;right:28px;width:300px;padding:18px 20px 16px;border-radius:12px;background:#f3efe7f5;border:1px solid rgba(0,0,0,.1);box-shadow:0 6px 24px #00000024;opacity:0;transform:translateY(-8px);pointer-events:none;transition:all .25s ease}#info-card.show{opacity:1;transform:translateY(0);pointer-events:auto}#info-card h2{font-size:17px;color:#a62b2b;letter-spacing:3px;margin-bottom:8px;border-bottom:1px dashed #d5cfc2;padding-bottom:8px}#info-card p{font-size:13px;line-height:1.75;color:#4a453c}#info-close{position:absolute;top:8px;right:10px;border:none;background:none;font-size:18px;color:#8a8577;cursor:pointer;line-height:1}#info-close:hover{color:#a62b2b}@media(max-width:640px){.title{top:14px;left:16px}.title h1{font-size:16px;letter-spacing:3px}.title p{font-size:10px;letter-spacing:2px}.stage-label{top:14px;right:16px;font-size:13px;letter-spacing:2px}#reset-view{top:42px;right:16px;width:28px;height:28px}.panel{padding:10px 14px 12px}.narration{font-size:12px;line-height:1.6;min-height:32px;max-height:5.2em;overflow-y:auto;-webkit-overflow-scrolling:touch}.slider-row{gap:8px}.slider-end{display:none}#play-btn{padding:4px 10px;font-size:11px;letter-spacing:1px}.stage-dots{gap:10px;margin-top:8px}.dot{width:8px;height:8px}#info-card{top:auto;bottom:132px;right:12px;left:12px;width:auto;padding:14px 16px 12px}#info-card h2{font-size:15px;letter-spacing:2px}#info-card p{font-size:12px;line-height:1.65}}