:root{--gold: #e6c15c;--bg: #0a0a0f;--glass: rgba(10, 10, 18, .72);--line: rgba(255, 255, 255, .14)}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%}body{background:var(--bg);color:#eee;font-family:PingFang SC,Microsoft YaHei,system-ui,sans-serif;display:flex;align-items:center;justify-content:center}.stage{position:relative;width:100%;max-width:1100px;aspect-ratio:16 / 9;background:#000;overflow:hidden}@media (min-aspect-ratio: 16/9){.stage{width:auto;height:100vh}}@media (max-aspect-ratio: 16/9){.stage{border-radius:0}}.stage video{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:contain;background:#000}.layer{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;z-index:10}.hidden{display:none!important}.cover{background:radial-gradient(ellipse at 30% 20%,rgba(90,70,20,.35),transparent 60%),linear-gradient(160deg,#10101c,#060608);z-index:30}.cover-inner{text-align:center;padding:24px}.cover-kicker{color:var(--gold);letter-spacing:.5em;font-size:13px;margin-bottom:14px}.cover-title{font-size:clamp(32px,6vw,56px);font-weight:700;letter-spacing:.12em;margin-bottom:12px}.cover-sub{color:#9a9aa6;font-size:15px;margin-bottom:36px}.choice{background:#05050a73;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);z-index:20;align-items:flex-end}.choice-box{width:100%;max-width:640px;margin:0 auto 10vh;padding:22px clamp(16px,4vw,32px) 26px}.choice-prompt{text-align:center;font-size:clamp(16px,2.6vw,20px);margin-bottom:18px;text-shadow:0 2px 8px #000}.choice-options{display:flex;flex-direction:column;gap:12px}.btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:1px solid var(--line);background:var(--glass);color:#eee;font-size:16px;padding:13px 22px;border-radius:12px;cursor:pointer;transition:transform .12s ease,border-color .12s ease,background .12s ease;font-family:inherit}.btn:hover{border-color:var(--gold);transform:translateY(-1px)}.btn:active{transform:translateY(0)}.btn-primary{background:linear-gradient(180deg,#f0d27a,#c9992e);border-color:transparent;color:#201600;font-weight:700}.btn-lg{font-size:19px;padding:15px 46px;border-radius:999px}.btn-option{text-align:left;line-height:1.4}.btn-option .key{display:inline-block;min-width:26px;height:26px;line-height:26px;text-align:center;border-radius:8px;background:var(--gold);color:#201600;font-weight:700;margin-right:10px;font-size:14px}.ending{background:#040408db;z-index:25}.end-box{text-align:center;padding:24px}.end-text{font-size:clamp(22px,4vw,34px);font-weight:700;letter-spacing:.06em;margin-bottom:8px}.end-text:before{content:"— ";color:var(--gold)}.end-text:after{content:" —";color:var(--gold)}.end-hint{color:#8b8b96;font-size:13px;margin-bottom:28px}.end-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}.resume-tap{background:#0000008c;z-index:28}.hud{position:absolute;left:0;right:0;bottom:0;z-index:15;display:flex;align-items:center;gap:12px;padding:34px 16px 12px;background:linear-gradient(transparent,#000000bf)}.hud-scene{font-size:13px;color:var(--gold);white-space:nowrap;max-width:22vw;overflow:hidden;text-overflow:ellipsis}.hud-time{font-size:12px;color:#bbb;font-variant-numeric:tabular-nums}.hud-btn{-webkit-appearance:none;-moz-appearance:none;appearance:none;background:none;border:none;color:#ddd;font-size:17px;cursor:pointer;padding:4px}.hud-btn:hover{color:var(--gold)}.hud-progress{flex:1;-webkit-appearance:none;-moz-appearance:none;appearance:none;height:4px;border-radius:2px;background:#ffffff40;cursor:pointer}.hud-progress::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:13px;height:13px;border-radius:50%;background:var(--gold);box-shadow:0 0 6px #0009}.hud-progress::-moz-range-thumb{width:13px;height:13px;border:none;border-radius:50%;background:var(--gold)}.toast{position:fixed;left:50%;bottom:8vh;transform:translate(-50%);background:var(--glass);border:1px solid var(--line);color:#fff;padding:10px 22px;border-radius:999px;font-size:14px;opacity:0;pointer-events:none;transition:opacity .25s ease;z-index:99}.toast.show{opacity:1}