:root{ --accent:#ff5a5f; }
*{box-sizing:border-box;margin:0;padding:0;}
html,body{height:100%;background:#000;overflow:hidden;}
body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:#fff;}
#stage{position:fixed;inset:0;overflow:hidden;background:#000;}
.scene{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;
  opacity:0;transition:opacity .5s ease, transform .5s ease;will-change:opacity,transform;}
.scene.show{opacity:1;transform:none;}
.scene .media-slot{position:absolute;inset:0;z-index:0;background:#000;
  display:flex;align-items:center;justify-content:center;}
.scene .media-frame{position:relative;flex:0 0 auto;overflow:hidden;background:#000;width:100vw;height:calc(100vw * 16 / 9);max-height:100vh;max-width:calc(100vh * 9 / 16);}
.scene .media-frame > .media{display:block;width:100%;height:100%;object-fit:cover;}
/* 视频缓冲指示：素材未就绪时显示加载动画，避免“黑屏=卡住”的错觉 */
.media-loading{position:absolute;inset:0;z-index:3;display:flex;align-items:center;justify-content:center;pointer-events:none;}
.media-loading .spin{width:38px;height:38px;border-radius:50%;border:3px solid rgba(255,255,255,.25);border-top-color:#fff;animation:yy-spin .8s linear infinite;}
@keyframes yy-spin{to{transform:rotate(360deg);}}
.scene .scrim{position:absolute;inset:0;z-index:1;
  background:linear-gradient(to top, rgba(0,0,0,.88) 0%, rgba(0,0,0,.35) 42%, rgba(0,0,0,0) 68%);}
.scene .content{position:relative;z-index:2;padding:26px 20px calc(28px + env(safe-area-inset-bottom));}
.scene .title{font-size:13px;opacity:.65;margin-bottom:8px;letter-spacing:2px;}
.scene .text{font-size:19px;line-height:1.65;margin-bottom:24px;white-space:pre-wrap;
  text-shadow:0 1px 6px rgba(0,0,0,.7);}
.choices{display:flex;flex-direction:column;gap:12px;}
.btn{display:block;width:100%;padding:16px 18px;border:none;border-radius:14px;
  background:rgba(255,255,255,.12);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  color:#fff;font-size:16px;text-align:center;cursor:pointer;
  border:1px solid rgba(255,255,255,.22);transition:transform .12s ease, background .2s ease;}
.btn:active{transform:scale(.97);background:var(--accent);border-color:transparent;}
.btn.accent{background:var(--accent);border-color:transparent;}
.brand{position:absolute;top:calc(14px + env(safe-area-inset-top));left:16px;font-size:11px;
  letter-spacing:3px;opacity:.5;z-index:3;}
.sound-btn{position:absolute;top:calc(12px + env(safe-area-inset-top));right:14px;z-index:15;
  background:rgba(0,0,0,.42);border:1px solid rgba(255,255,255,.25);color:#fff;
  border-radius:20px;padding:7px 13px;font-size:12px;cursor:pointer;
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);}
.enter-slide{transform:translateX(100%);}
.leave-slide.hide{transform:translateX(-100%);}
.enter-zoom{transform:scale(.85);}
.leave-zoom.hide{transform:scale(1.18);opacity:0;}
.enter-flip{transform:rotateY(90deg);}
.leave-flip.hide{transform:rotateY(-90deg);opacity:0;}
.enter-none,.leave-none.hide{transition:opacity .05s;}
.auto-bar{display:flex;flex-direction:column;align-items:center;gap:10px;margin-top:18px;}
.auto-skip{background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);color:#fff;
  border-radius:22px;padding:9px 20px;font-size:14px;cursor:pointer;
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);}
.auto-skip:active{background:var(--accent);border-color:transparent;}
.auto-progress{width:100%;max-width:320px;height:3px;background:rgba(255,255,255,.22);border-radius:3px;overflow:hidden;}
.auto-progress > i{display:block;height:100%;width:0;background:var(--accent);}
/* 无强调色：游戏内按钮/进度条改用中性半透明样式，去掉主题色填充 */
.no-accent .btn,
.no-accent .btn.accent{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.22);}
.no-accent .btn:active{background:rgba(255,255,255,.22);border-color:rgba(255,255,255,.22);}
.no-accent .auto-skip:active{background:rgba(255,255,255,.28);border-color:rgba(255,255,255,.22);}
.no-accent .auto-progress > i{background:rgba(255,255,255,.6);}
.no-accent #startBtn{background:rgba(255,255,255,.18);}
#startScreen{position:absolute;inset:0;z-index:20;display:none;opacity:0;transition:opacity .42s ease;flex-direction:column;align-items:center;justify-content:center;gap:32px;background:#000;}
#startScreen .start-title{font-size:28px;letter-spacing:4px;opacity:.95;text-align:center;padding:0 24px;line-height:1.4;}
#startScreen #startBtn{padding:15px 42px;border:none;border-radius:30px;background:var(--accent);color:#fff;font-size:19px;cursor:pointer;-webkit-tap-highlight-color:transparent;}
#startScreen #startBtn:active{transform:scale(.96);}
#loadingScreen{position:absolute;inset:0;z-index:21;display:flex;opacity:1;transition:opacity .42s ease;flex-direction:column;align-items:center;justify-content:center;gap:22px;background:#000;}
#loadingScreen .l-title{font-size:18px;letter-spacing:2px;opacity:.85;}
#loadingScreen .l-bar{width:62%;max-width:300px;height:4px;background:rgba(255,255,255,.2);border-radius:4px;overflow:hidden;}
#loadingScreen .l-bar > i{display:block;height:100%;width:0;background:var(--accent);transition:width .25s ease;}
#loadingScreen .l-pct{font-size:13px;opacity:.6;}
/* 桌面 / 横屏宽屏适配：把游戏显示为居中的竖屏「舞台」，两侧留优雅背景。
   手机竖屏（视口明显高大于宽）仍走上面的满屏逻辑，完全不受影响。 */
@media (min-aspect-ratio: 3/4){
  body{
    background:radial-gradient(circle at 50% 26%, #1b1b2e 0%, #0a0a12 72%);
    display:flex;align-items:center;justify-content:center;
  }
  #stage{
    position:relative;inset:auto;
    width:min(100vw, calc(100vh * 9 / 16));
    height:min(100vh, calc(100vw * 16 / 9));
    border-radius:18px;
    box-shadow:0 30px 90px rgba(0,0,0,.6);
    overflow:hidden;
  }
  .scene .media-frame{width:100%;height:100%;max-height:none;max-width:none;}
}
/* ---- 血量条 ---- */
#hpBar{position:absolute;top:calc(10px + env(safe-area-inset-top));left:50%;transform:translateX(-50%);z-index:12;display:none;align-items:center;justify-content:center;box-sizing:border-box;max-width:calc(100% - 96px);pointer-events:none;}
#hpBar .hp-hearts{display:flex;gap:2px;align-items:center;justify-content:center;}
#hpBar .heart{position:relative;display:inline-block;width:21px;height:18px;}
#hpBar .heart svg{position:absolute;inset:0;width:100%;height:100%;display:block;}
#hpBar .heart .hb{fill:rgba(255,255,255,.38);}
#hpBar .heart .hf{fill:#ff4d4f;transition:clip-path .35s ease;}
/* ---- 扣血特效 ---- */
#hpFlash{position:absolute;inset:0;z-index:11;pointer-events:none;opacity:0;background:radial-gradient(circle at 50% 42%, transparent 48%, rgba(255,0,0,.32) 100%);box-shadow:inset 0 0 110px 24px rgba(255,0,0,.5);}
#hpFlash.on{animation:hpFlash .55s ease;}
@keyframes hpFlash{0%{opacity:0}22%{opacity:1}100%{opacity:0}}
#hpBar.shake{animation:hpShake .42s ease;}
@keyframes hpShake{0%,100%{transform:translateX(-50%)}20%{transform:translateX(calc(-50% - 7px))}40%{transform:translateX(calc(-50% + 6px))}60%{transform:translateX(calc(-50% - 4px))}80%{transform:translateX(calc(-50% + 3px))}}
#hpFloat{position:absolute;top:calc(40px + env(safe-area-inset-top));left:50%;transform:translateX(-50%);z-index:16;pointer-events:none;display:flex;flex-direction:column;align-items:center;}
.hp-float{color:#ff4d4f;font-weight:800;font-size:28px;line-height:1;text-shadow:0 2px 8px rgba(0,0,0,.6);animation:hpFloat 1s ease forwards;}
@keyframes hpFloat{0%{opacity:0;transform:translateY(10px) scale(.7)}18%{opacity:1;transform:translateY(-2px) scale(1.15)}100%{opacity:0;transform:translateY(-40px) scale(1)}}
#hpOver{position:absolute;inset:0;z-index:30;display:none;align-items:center;justify-content:center;background:rgba(0,0,0,.82);}
#hpOver .hp-over-box{text-align:center;padding:30px 26px;}
#hpOver .hp-over-t{font-size:30px;letter-spacing:4px;margin-bottom:10px;}
#hpOver .hp-over-s{font-size:15px;opacity:.7;margin-bottom:26px;}
#hpOver #hpRestart{padding:13px 38px;border:none;border-radius:28px;background:var(--accent);color:#fff;font-size:17px;cursor:pointer;}