:root{
  --bg0:#050B1E; --bg1:#0A1735; --bg2:#0E2150;
  --orange:#FF7A1A; --orange2:#FFB25E; --orange-soft:rgba(255,122,26,.14);
  --blue:#2E6BFF; --cyan:#4FC3F7;
  --ink:#EAF0FF; --muted:#9DB0D8; --line:rgba(255,255,255,.09);
  --card:rgba(255,255,255,.045);
}
*{margin:0;padding:0;box-sizing:border-box}
html,body{width:100%;height:100%;overflow:hidden;background:var(--bg0);
  font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB",sans-serif;color:var(--ink)}
#viewport{position:fixed;inset:0;background:radial-gradient(1200px 700px at 85% -10%,rgba(46,107,255,.16),transparent 60%),
  radial-gradient(1000px 600px at -10% 110%,rgba(255,122,26,.12),transparent 60%),var(--bg0)}
#stage{position:absolute;left:50%;top:50%;width:1920px;height:1080px;
  transform:translate(-50%,-50%) scale(var(--s,1));transform-origin:center}

/* ============ 幻灯片基础 ============ */
.slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .7s ease,visibility .7s;
  background:linear-gradient(135deg,var(--bg1) 0%,#08122B 55%,#0A1836 100%)}
.slide.active{opacity:1;visibility:visible;z-index:2}
.slide::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:
   radial-gradient(900px 500px at 100% 0%,rgba(46,107,255,.14),transparent 60%),
   radial-gradient(700px 500px at 0% 100%,rgba(255,122,26,.10),transparent 60%)}
.slide::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(1200px 800px at 50% 40%,#000 30%,transparent 100%)}
.pad{position:absolute;inset:64px 84px 84px;display:flex;flex-direction:column}

/* 入场动效 */
.slide.active .rise{animation:rise .8s cubic-bezier(.22,.8,.3,1) both;animation-delay:var(--d,0s)}
@keyframes rise{from{opacity:0;transform:translateY(34px)}to{opacity:1;transform:none}}

/* ============ 页眉 ============ */
.s-head{display:flex;align-items:flex-end;gap:28px;border-bottom:1px solid var(--line);
  padding-bottom:22px;margin-bottom:30px;position:relative;z-index:3}
.s-head .no{font-family:"Times New Roman",serif;font-size:88px;font-weight:700;line-height:.8;
  background:linear-gradient(180deg,var(--orange2),var(--orange));-webkit-background-clip:text;background-clip:text;
  color:transparent;opacity:.95;min-width:110px}
.s-head .titles{flex:1}
.kicker{font-size:15px;letter-spacing:.42em;color:var(--orange);text-transform:uppercase;margin-bottom:8px;font-weight:600}
.s-head h2{font-size:46px;font-weight:800;letter-spacing:.04em}
.s-head .sub{font-size:19px;color:var(--muted);margin-top:6px;letter-spacing:.12em}
.s-head .tag{font-size:14px;color:var(--muted);border:1px solid var(--line);border-radius:999px;
  padding:8px 18px;white-space:nowrap;background:var(--card)}
.s-body{flex:1;display:flex;gap:34px;min-height:0;position:relative;z-index:3}

/* ============ 通用组件 ============ */
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px 26px;
  backdrop-filter:blur(6px);position:relative;overflow:hidden}
.card h4{font-size:19px;color:var(--orange2);display:flex;align-items:center;gap:10px;margin-bottom:12px;font-weight:700}
.card h4::before{content:"";width:6px;height:20px;border-radius:3px;
  background:linear-gradient(180deg,var(--orange2),var(--orange))}
.card p{font-size:16.5px;line-height:1.75;color:#C9D6F2;text-align:justify}
.hl{color:var(--orange2);font-weight:700}
.hlb{color:var(--cyan);font-weight:700}
.foot{position:absolute;left:84px;right:84px;bottom:26px;display:flex;justify-content:center;align-items:center;gap:24px;
  font-size:13.5px;color:rgba(157,176,216,.65);letter-spacing:.18em;z-index:3;text-align:center}
.polaroid{background:#fff;padding:10px 10px 34px;border-radius:10px;box-shadow:0 18px 40px rgba(0,0,0,.45);
  position:relative;transition:transform .4s}
.polaroid img{display:block;width:100%;height:100%;object-fit:cover;border-radius:4px}
.polaroid .cap{position:absolute;left:0;right:0;bottom:7px;text-align:center;color:#33415C;font-size:13.5px;font-weight:600}
.ph{border-radius:14px;overflow:hidden;border:1px solid var(--line);box-shadow:0 14px 34px rgba(0,0,0,.4);position:relative;background:#0A142E}
.ph img{width:100%;height:100%;object-fit:contain;display:block}
img.fillbg{position:absolute;inset:0;width:100%!important;height:100%!important;object-fit:cover;
  filter:blur(18px) brightness(.45) saturate(1.15);transform:scale(1.15);z-index:0}
.ph>img:not(.fillbg),.master-hero>img:not(.fillbg){position:relative;z-index:1}
.ph .cap{z-index:2}
.master-hero .veil{z-index:2}
.ph .cap{position:absolute;left:0;right:0;bottom:0;padding:26px 14px 10px;font-size:13px;color:#EAF0FF;
  background:linear-gradient(transparent,rgba(4,10,26,.85));pointer-events:none}

/* ============ 封面 ============ */
#s0{background:linear-gradient(160deg,#081228 0%,#0A1B40 48%,#12275C 100%)}
#s0 .pad{inset:0;align-items:center;justify-content:center;text-align:center}
.eq{display:flex;align-items:flex-end;gap:9px;height:120px;margin-bottom:44px}
.eq i{width:9px;border-radius:5px;background:linear-gradient(180deg,var(--orange2),var(--orange));
  animation:eq 1.1s ease-in-out infinite;box-shadow:0 0 18px rgba(255,122,26,.45)}
@keyframes eq{0%,100%{transform:scaleY(.25)}50%{transform:scaleY(1)}}
.cover-kicker{font-size:20px;letter-spacing:.65em;color:var(--muted);margin-bottom:26px;text-indent:.65em}
.cover-title{font-family:"STZhongsong","STSong","SimSun",serif;font-size:118px;font-weight:900;letter-spacing:.06em;
  background:linear-gradient(100deg,#FFD9A8 10%,var(--orange) 45%,#FF9E4F 70%,#FFC98A 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 8px 30px rgba(255,122,26,.25))}
.cover-sub{font-size:40px;font-weight:700;letter-spacing:.32em;margin-top:26px;text-indent:.32em;color:#DFE8FF}
.cover-line{width:760px;height:2px;margin:40px auto 34px;
  background:linear-gradient(90deg,transparent,var(--orange),var(--blue),transparent)}
.cover-desc{max-width:1150px;font-size:19px;line-height:2;color:var(--muted);text-align:center}
.movements{display:flex;gap:16px;margin-top:52px}
.movements span{font-size:16.5px;letter-spacing:.14em;color:#C9D6F2;border:1px solid var(--line);
  border-radius:999px;padding:12px 26px;background:rgba(255,255,255,.04);cursor:pointer;transition:all .3s}
.movements span:hover{border-color:rgba(255,122,26,.55);color:#FFD9A8;transform:translateY(-3px)}
.movements b{color:var(--orange2);margin-right:8px;font-family:"Times New Roman",serif}

/* ============ 序曲 ============ */
#s1 .s-body{flex-direction:column;gap:26px}
.prelude{font-size:21px;line-height:2.05;color:#C9D6F2;text-align:justify;padding:8px 6px;max-width:1560px}
.prelude .hl{font-size:23px}
.mv-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:22px;flex:1;align-content:center}
.mv{border:1px solid var(--line);border-radius:18px;padding:26px 24px;background:var(--card);
  display:flex;flex-direction:column;gap:10px;position:relative;overflow:hidden;transition:transform .35s,border-color .35s;cursor:pointer}
.mv::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--orange),transparent)}
.mv::after{content:"进入 ›";position:absolute;right:20px;bottom:18px;font-size:13px;
  letter-spacing:.14em;color:var(--orange2);opacity:0;transform:translateX(-8px);transition:all .3s}
.mv:hover{transform:translateY(-6px);border-color:rgba(255,122,26,.4)}
.mv:hover::after{opacity:1;transform:none}
.mv .n{font-family:"Times New Roman",serif;font-size:44px;font-weight:700;color:var(--orange)}
.mv .t{font-size:22px;font-weight:800;letter-spacing:.08em}
.mv .e{font-size:13px;letter-spacing:.22em;color:var(--muted)}
.mv .d{font-size:15px;color:#AFC0E4;line-height:1.7;margin-top:4px}

/* ============ 第一乐章 a ============ */
.col-text{flex:1.15;display:flex;flex-direction:column;gap:22px;min-width:0}
.cpe-row{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.cpe{background:linear-gradient(160deg,rgba(46,107,255,.13),rgba(255,122,26,.07));
  border:1px solid rgba(120,155,255,.22);border-radius:16px;padding:18px 18px 16px;position:relative;overflow:hidden}
.cpe .letter{font-family:"Times New Roman",serif;font-size:46px;font-weight:800;font-style:italic;
  background:linear-gradient(180deg,var(--orange2),var(--orange));-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.cpe .en{font-size:12.5px;letter-spacing:.3em;color:var(--muted);margin:2px 0 8px}
.cpe .zh{font-size:18px;font-weight:800;margin-bottom:6px}
.cpe .ds{font-size:14px;line-height:1.65;color:#AFC0E4}
.col-img{flex:.85;display:grid;grid-template-rows:1.15fr 1fr;gap:20px;min-width:0}

/* ============ 第一乐章 b：三步走 ============ */
.steps{display:flex;gap:0;align-items:stretch;margin-top:6px}
.step{flex:1;position:relative;padding:24px 26px 20px;border-top:3px solid rgba(255,122,26,.5)}
.step::before{content:"";position:absolute;top:-9px;left:26px;width:15px;height:15px;border-radius:50%;
  background:var(--orange);box-shadow:0 0 0 5px rgba(255,122,26,.18)}
.step .yr{font-family:"Times New Roman",serif;font-size:30px;font-weight:800;color:var(--orange2)}
.step .tt{font-size:22px;font-weight:800;margin:6px 0 8px;letter-spacing:.1em}
.step .dd{font-size:15.5px;line-height:1.7;color:#AFC0E4}
.step+.step{border-left:1px dashed rgba(255,255,255,.12)}
.vision-quote{font-size:18px;color:var(--muted);letter-spacing:.2em;margin-top:22px;
  border-left:3px solid var(--orange);padding-left:16px}

/* ============ 第二乐章 a ============ */
.chain{display:flex;flex-direction:column;gap:14px}
.chain-item{display:flex;align-items:center;gap:18px;border:1px solid var(--line);border-radius:14px;
  padding:15px 20px;background:var(--card)}
.chain-item .lv{font-size:15px;font-weight:800;color:#071129;background:linear-gradient(90deg,var(--orange2),var(--orange));
  border-radius:8px;padding:7px 13px;white-space:nowrap;letter-spacing:.08em}
.chain-item .cs{font-size:16px;color:#C9D6F2}
.chain-item .cs b{color:var(--orange2)}
.mini-cards{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:20px}
.mini-cards .card h4{font-size:17.5px}
.mini-cards .card p{font-size:15px}
.stat-num{font-family:"Times New Roman",serif;font-size:34px;font-weight:800;color:var(--orange2)}

/* ============ 第二乐章 b：大师课 ============ */
.master-hero{flex:1.25;border-radius:18px;overflow:hidden;position:relative;border:1px solid var(--line);background:#0A142E}
.master-hero img{width:100%;height:100%;object-fit:contain;display:block}
.master-hero .veil{position:absolute;inset:auto 0 0;padding:120px 34px 26px;
  background:linear-gradient(transparent,rgba(4,10,26,.92))}
.master-hero .veil .t{font-size:26px;font-weight:800;margin-bottom:8px}
.master-hero .veil .d{font-size:16px;color:#C9D6F2;line-height:1.7}
.master-side{flex:1;display:flex;flex-direction:column;gap:22px;min-width:0}
.master-side .ph{flex:1}

/* ============ 第三乐章：案例 ============ */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:1fr 1fr;gap:18px;flex:1}
.case{display:flex;gap:16px;background:var(--card);border:1px solid var(--line);border-radius:16px;
  padding:18px;position:relative;overflow:hidden}
.case::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--accent,var(--orange))}
.case .info{flex:1;display:flex;flex-direction:column;min-width:0}
.case .cat{font-size:12.5px;letter-spacing:.18em;color:var(--accent,var(--orange));font-weight:700;margin-bottom:6px}
.case h5{font-size:17.5px;font-weight:800;margin-bottom:4px;line-height:1.35}
.case .who{font-size:13px;color:var(--muted);margin-bottom:8px}
.case p{font-size:13.8px;line-height:1.62;color:#AFC0E4;text-align:justify}
.case .qr{width:96px;height:96px;flex:none;background:#fff;border-radius:10px;padding:7px;align-self:center}
.case .qr img{width:100%;height:100%;display:block}
.case .qr span{position:absolute}

/* ============ 第四乐章 a：时间轴 ============ */
.tl{position:relative;padding:10px 8px 0;margin-top:4px}
.tl::before{content:"";position:absolute;left:30px;right:30px;top:33px;height:3px;
  background:linear-gradient(90deg,var(--orange),var(--blue));border-radius:2px;opacity:.7}
.tl-row{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.tl-item{position:relative;padding-top:44px}
.tl-item::before{content:"";position:absolute;top:24px;left:8px;width:20px;height:20px;border-radius:50%;
  background:var(--bg1);border:4px solid var(--orange);box-shadow:0 0 16px rgba(255,122,26,.4)}
.tl-item .dt{font-family:"Times New Roman",serif;font-size:25px;font-weight:800;color:var(--orange2)}
.tl-item .tx{font-size:15.5px;line-height:1.65;color:#C9D6F2;margin-top:8px}
.tl-item.card{padding:48px 20px 18px;border-radius:16px}
.song{display:flex;gap:22px;align-items:stretch}
.song .info{flex:1}
.song .qrbox{width:130px;flex:none;text-align:center}
.song .qrbox .q{width:130px;height:130px;background:#fff;border-radius:12px;padding:9px}
.song .qrbox .q img{width:100%;height:100%}
.song .qrbox .c{font-size:13px;color:var(--muted);margin-top:8px;letter-spacing:.1em}
.mv-btn{margin-top:14px;display:inline-flex;align-items:center;gap:10px;padding:12px 26px;border-radius:999px;
  border:1px solid rgba(255,122,26,.5);background:linear-gradient(90deg,rgba(255,122,26,.2),rgba(255,122,26,.07));
  color:#FFD9A8;font-size:17px;font-weight:700;letter-spacing:.1em;cursor:pointer;font-family:inherit;transition:all .25s;
  position:relative;overflow:hidden;animation:mvGlow 1.8s ease-in-out infinite}
.mv-btn::after{content:"";position:absolute;top:0;left:-90%;width:45%;height:100%;
  background:linear-gradient(105deg,transparent,rgba(255,255,255,.4),transparent);
  transform:skewX(-18deg);animation:mvShine 2.6s ease-in-out infinite;pointer-events:none}
@keyframes mvGlow{0%,100%{box-shadow:0 0 14px rgba(255,122,26,.45)}
  50%{box-shadow:0 0 26px rgba(255,122,26,.85),0 0 56px rgba(255,122,26,.4)}}
@keyframes mvShine{0%{left:-90%}55%,100%{left:140%}}
.mv-btn:hover{background:rgba(255,122,26,.32);transform:translateY(-2px)}
/* 页内视频（未来之潮 MV）与终章结束后：学院展示视频，均全屏播放（带控制条） */
#eoverlay{position:absolute;inset:0;z-index:85;display:none;flex-direction:column;align-items:center;justify-content:center;
  background:rgba(3,8,20,.95);backdrop-filter:blur(10px)}
#eoverlay.on{display:flex}
#eoverlay .ev-box{position:relative;width:100%;height:100%}
#evvideo{width:100%;height:100%;border-radius:0;border:none;background:#000;object-fit:contain}
.ev-ctl{position:absolute;left:50%;bottom:34px;transform:translateX(-50%);display:flex;align-items:center;gap:14px;
  width:min(1100px,92%);background:rgba(10,23,53,.82);border:1px solid var(--line);
  border-radius:999px;padding:10px 22px;backdrop-filter:blur(10px)}
.ev-ctl button{height:38px;min-width:38px;padding:0 12px;border-radius:999px;border:1px solid var(--line);
  background:rgba(255,255,255,.06);color:#C9D6F2;cursor:pointer;font-size:14px;font-family:inherit;
  display:flex;align-items:center;justify-content:center;gap:6px;transition:all .25s;flex:none}
.ev-ctl button:hover{border-color:var(--orange);color:var(--orange2)}
.ev-t{font-size:13px;color:var(--muted);min-width:40px;text-align:center;font-variant-numeric:tabular-nums;flex:none}
#evSeek{flex:1;-webkit-appearance:none;appearance:none;height:6px;border-radius:3px;cursor:pointer;
  background:linear-gradient(90deg,var(--orange) var(--p,0%),rgba(255,255,255,.15) var(--p,0%));outline:none}
#evSeek::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:17px;height:17px;border-radius:50%;
  background:var(--orange);border:2px solid rgba(255,255,255,.35);box-shadow:0 0 10px rgba(255,122,26,.6);cursor:pointer}
#evSeek::-moz-range-thumb{width:17px;height:17px;border-radius:50%;background:var(--orange);
  border:2px solid rgba(255,255,255,.35);box-shadow:0 0 10px rgba(255,122,26,.6);cursor:pointer}
#evVol{width:100px;-webkit-appearance:none;appearance:none;height:5px;border-radius:3px;cursor:pointer;
  background:rgba(255,255,255,.15);outline:none}
#evVol::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:15px;height:15px;border-radius:50%;
  background:var(--cyan);border:2px solid rgba(255,255,255,.35);cursor:pointer}
#evVol::-moz-range-thumb{width:15px;height:15px;border-radius:50%;background:var(--cyan);
  border:2px solid rgba(255,255,255,.35);cursor:pointer}
#evClose{padding:0 20px;font-weight:700;letter-spacing:.1em}
/* 全屏按钮：仅手机端显示 */
#evFull{display:none}

/* 专题图文页 */
.feat-text{flex:.62;display:flex;flex-direction:column;justify-content:center;min-width:0;padding:10px 6px}
.feat-text h3{font-size:38px;font-weight:800;line-height:1.45;margin-bottom:22px}
.feat-text p{font-size:19px;line-height:1.9;color:#C9D6F2;text-align:justify}
.feat-text .q{margin-top:34px;padding-left:18px;border-left:3px solid var(--orange);
  color:var(--muted);font-size:17px;line-height:1.9;letter-spacing:.08em}

/* ============ 第四乐章 b：整栏大图 ============ */
.colx{flex:1;display:flex;flex-direction:column;gap:12px;min-width:0}
.colx h3{font-size:24px;font-weight:800;display:flex;align-items:center;gap:12px}
.colx h3 .dot{width:12px;height:12px;border-radius:50%;background:var(--orange);box-shadow:0 0 12px rgba(255,122,26,.6);flex:none}
.colx p{font-size:15.5px;line-height:1.72;color:#AFC0E4;text-align:justify}
.stack{display:flex;flex-direction:column;gap:12px;flex:1;min-height:0}
.stack .ph{min-height:0;margin:0}
.trio{display:flex;gap:14px;min-height:0;align-items:center}
.trio .ph{flex:1;min-height:0;margin:0;aspect-ratio:1131/1600;max-height:100%}
/* 横竖混排：按各自宽高比分配宽度，等高并排 */
.duo{display:flex;gap:16px;align-items:center;justify-content:center;min-height:0}
.duo .ph{min-height:0;margin:0;max-height:100%}
.strip{flex:1;min-height:0;overflow:hidden;display:flex;border-radius:14px}
.strip .mq-track{display:flex;gap:12px;width:max-content;min-height:0;animation:mqX var(--dur,30s) linear infinite}
.strip .mq-track .ph{width:auto;height:100%;flex:none}
.strip .mq-track .ph img{width:auto;height:100%;object-fit:contain}
/* 大图轮播 */
.carousel{position:relative;flex:1;min-height:0;border-radius:14px;overflow:hidden;touch-action:pan-y;
  border:1px solid var(--line);background:#0A142E;box-shadow:0 14px 34px rgba(0,0,0,.4)}
.carousel img:not(.fillbg){position:absolute;inset:0;width:100%;height:100%;object-fit:contain;
  opacity:0;transition:opacity 1.1s ease;z-index:1}
.carousel img.fillbg{opacity:0;transition:opacity 1.1s ease}
.carousel img.on{opacity:1}
.carousel .dots2{position:absolute;bottom:14px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:3}
.carousel .dots2 i{width:24px;height:5px;border-radius:3px;background:rgba(255,255,255,.28);transition:all .3s;cursor:pointer}
.carousel .dots2 i.on{background:var(--orange);width:38px;box-shadow:0 0 8px rgba(255,122,26,.5)}
.carousel .car-tag{position:absolute;top:12px;left:12px;z-index:3;font-size:14px;letter-spacing:.1em;
  color:#DFE8FF;background:rgba(4,10,26,.62);padding:6px 14px;border-radius:999px;border:1px solid var(--line);backdrop-filter:blur(6px)}
/* 竖版证书：按容器高度定宽，水平居中，避免超出页面 */
.cert-fig{flex:none;height:100%;aspect-ratio:1131/1600;width:auto;max-width:44%;align-self:center;margin:0 auto}
@keyframes mqX{to{transform:translateX(-50%)}}

/* ============ 终章 ============ */
.ach{flex:1.05;display:flex;flex-direction:column;gap:16px;min-width:0}
.ach-item{display:flex;gap:16px;border:1px solid var(--line);border-radius:14px;padding:15px 18px;background:var(--card)}
.ach-item .medal{flex:none;width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-size:24px;background:linear-gradient(150deg,rgba(255,178,94,.25),rgba(255,122,26,.1));border:1px solid rgba(255,122,26,.35)}
.ach-item h5{font-size:17px;font-weight:800;margin-bottom:4px}
.ach-item h5 .hl{font-size:15px}
.ach-item p{font-size:14px;line-height:1.6;color:#AFC0E4}
.pics{flex:.95;display:flex;flex-direction:column;gap:14px;min-width:0}
.pics .rowA{display:flex;gap:14px;flex:1.25;min-height:0}
.pics .rowB{display:flex;gap:14px;flex:1;min-height:0}
.pics .rowA .ph,.pics .rowB .ph{min-height:0;margin:0}
.pics .row3{display:flex;gap:14px;flex:.75;min-height:0}
.pics .row3 .ph{flex:1;min-height:0}

/* ============ 愿景 ============ */
#s10 .pad{align-items:center;justify-content:center;text-align:center}
.end-quote{font-family:"STZhongsong","STSong","SimSun",serif;font-size:64px;font-weight:800;line-height:1.5;
  background:linear-gradient(100deg,#FFD9A8,var(--orange) 50%,#FFC98A);-webkit-background-clip:text;background-clip:text;color:transparent}
.end-sub{font-size:20px;color:var(--muted);letter-spacing:.3em;margin-top:30px}
.end-eq{display:flex;align-items:flex-end;gap:8px;height:70px;margin-top:48px}
.end-eq i{width:7px;border-radius:4px;background:linear-gradient(180deg,var(--blue),var(--cyan));animation:eq 1.3s ease-in-out infinite}
.end-qr{margin-top:44px;display:flex;align-items:center;gap:16px}
.end-qr .q{width:110px;height:110px;background:#fff;border-radius:12px;padding:8px}
.end-qr .q img{width:100%;height:100%}
.end-qr .c{text-align:left;font-size:16px;color:#C9D6F2;line-height:1.8}

/* ============ 导航 ============ */
#progress{position:absolute;top:0;left:0;height:4px;width:0;z-index:50;
  background:linear-gradient(90deg,var(--orange),var(--orange2));box-shadow:0 0 12px rgba(255,122,26,.6)}
#dots{position:absolute;bottom:30px;left:50%;transform:translateX(-50%);display:flex;gap:12px;z-index:50}
#dots i{width:34px;height:5px;border-radius:3px;background:rgba(255,255,255,.18);cursor:pointer;transition:all .3s}
#dots i.on{background:var(--orange);width:52px;box-shadow:0 0 10px rgba(255,122,26,.5)}
#nav{position:absolute;bottom:22px;right:34px;display:flex;align-items:center;gap:14px;z-index:50;font-size:14px;color:var(--muted)}
#nav button{width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:rgba(255,255,255,.05);
  color:var(--ink);font-size:18px;cursor:pointer;transition:all .25s}
#nav button:hover{border-color:var(--orange);color:var(--orange2)}
/* 下一页按钮：呼吸光环 + 扫光，引导用户点击 */
#nav #next{position:relative;border-color:rgba(255,122,26,.55);color:var(--orange2);
  animation:nextBreath 2s ease-in-out infinite;overflow:hidden}
@keyframes nextBreath{
  0%,100%{box-shadow:0 0 4px rgba(255,122,26,.25),0 0 0 0 rgba(255,122,26,.35)}
  50%{box-shadow:0 0 18px rgba(255,122,26,.75),0 0 0 9px rgba(255,122,26,0)}
}
#nav #next::after{content:"";position:absolute;top:0;left:-80%;width:45%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.55),transparent);
  animation:nextShine 2s ease-in-out infinite}
@keyframes nextShine{0%{left:-80%}60%,100%{left:140%}}
#counter{font-family:"Times New Roman",serif;font-size:16px;letter-spacing:.15em;min-width:64px;text-align:center}
#nav #play{width:auto;height:40px;border-radius:999px;display:flex;align-items:center;padding:0 12px}
#nav #play .knob{width:40px;height:22px;border-radius:999px;background:rgba(255,255,255,.12);position:relative;transition:background .25s;flex:none}
#nav #play .knob::after{content:"";position:absolute;top:3px;left:3px;width:16px;height:16px;border-radius:50%;
  background:#8DA0C8;transition:all .25s}
#nav #play.on .knob{background:rgba(255,122,26,.28)}
#nav #play.on .knob::after{left:21px;background:var(--orange);box-shadow:0 0 10px rgba(255,122,26,.8)}
#hint{position:absolute;bottom:72px;left:50%;transform:translateX(-50%);z-index:49;font-size:14px;color:rgba(157,176,216,.55);letter-spacing:.2em;white-space:nowrap;pointer-events:none}
#topbar{position:absolute;top:22px;right:36px;z-index:60;display:flex;gap:14px;align-items:center;flex-wrap:wrap;justify-content:flex-end;row-gap:10px;max-width:calc(100vw - 220px)}
#brand{position:absolute;top:22px;left:36px;z-index:60;display:flex;gap:12px;align-items:center;pointer-events:none;transition:all .5s}
#brand img{width:46px;height:46px;border-radius:50%;object-fit:cover;background:#fff;border:1px solid rgba(255,255,255,.28);box-shadow:0 4px 14px rgba(0,0,0,.4);transition:all .5s}
/* 首页与终章：logo 顶部居中放大，并跟随正文主体高度（--stage-top 由 JS 按缩放计算） */
body.brand-top #brand{left:50%;top:calc(var(--stage-top,0px) + 36px);transform:translateX(-50%);gap:20px}
body.brand-top #brand img{width:88px;height:88px;box-shadow:0 8px 26px rgba(0,0,0,.5)}
#homeBtn{display:none;align-items:center;gap:9px;height:48px;padding:0 22px;border-radius:999px;border:1px solid var(--line);cursor:pointer;white-space:nowrap;
  background:rgba(10,23,53,.72);backdrop-filter:blur(8px);color:#C9D6F2;
  font-size:16px;letter-spacing:.14em;font-family:inherit;transition:all .25s}
#gameBtn,#coverBtn,#createBtn{display:flex;align-items:center;gap:9px;height:48px;padding:0 22px;border-radius:999px;border:1px solid var(--line);white-space:nowrap;
  background:rgba(10,23,53,.72);backdrop-filter:blur(8px);color:#C9D6F2;text-decoration:none;
  font-size:16px;letter-spacing:.14em;font-family:inherit;transition:all .25s}
#gameBtn:hover,#coverBtn:hover,#createBtn:hover{border-color:var(--cyan);color:var(--cyan);box-shadow:0 0 18px rgba(79,195,247,.3)}
/* 背景音乐播放器 */
#musicPlayer{position:relative;display:flex;align-items:center;gap:8px;height:48px;padding:0 14px;border-radius:999px;border:1px solid var(--line);background:rgba(10,23,53,.72);backdrop-filter:blur(8px)}
#musicPlayer>button{width:32px;height:32px;border-radius:50%;border:1px solid var(--line);background:rgba(255,255,255,.06);color:#C9D6F2;cursor:pointer;font-size:13px;transition:all .25s;display:flex;align-items:center;justify-content:center;font-family:inherit}
#musicPlayer>button:hover{border-color:var(--orange);color:var(--orange2)}
#mTitle{font-size:13.5px;color:var(--muted);max-width:140px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;letter-spacing:.04em}
#mCoverBtn{width:32px;height:32px;border-radius:50%;border:1px solid var(--line);background:rgba(255,255,255,.06);cursor:pointer;padding:0;display:flex;align-items:center;justify-content:center;flex:none;font-size:15px;transition:all .25s;font-family:inherit}
#mCoverBtn:hover{border-color:var(--orange)}
#mCover{width:100%;height:100%;border-radius:50%;object-fit:cover;background:#fff}
#mCoverPh{line-height:1}
#mList{position:fixed;top:82px;right:36px;width:540px;display:none;gap:10px;background:rgba(8,18,42,.96);border:1px solid var(--line);border-radius:14px;padding:10px;backdrop-filter:blur(10px);z-index:70}
#mList.on{display:flex}
/* 左栏：专辑选择 */
#mAlbums{width:190px;max-height:360px;overflow:auto;display:flex;flex-direction:column;gap:4px;border-right:1px solid rgba(255,255,255,.08);padding-right:10px;flex:none}
#mAlbums .al{flex:none;display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:10px;cursor:pointer;color:#C9D6F2;border:1px solid transparent;transition:all .2s}
#mAlbums .al:hover{background:rgba(255,255,255,.06)}
#mAlbums .al.on{background:var(--orange-soft);border-color:rgba(255,122,26,.45);color:var(--orange2)}
#mAlbums .al img.cov,#mAlbums .al .ph{width:38px;height:38px;border-radius:9px;object-fit:cover;flex:none}
#mAlbums .al .ph{display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,rgba(255,122,26,.35),rgba(79,195,247,.3));font-size:16px}
#mAlbums .al .nm{flex:1;min-width:0;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
#mAlbums .al .ct{display:block;font-size:11px;color:var(--muted);margin-top:2px}
/* 右栏：曲目 */
#mSongs{flex:1;max-height:360px;overflow:auto;display:flex;flex-direction:column;gap:2px}
#mList .ti{flex:none;padding:8px 12px;border-radius:8px;font-size:14px;color:#C9D6F2;cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
#mList .ti:hover{background:rgba(255,255,255,.06)}
#mList .ti.on{color:var(--orange2);background:var(--orange-soft)}
#mList .empty{padding:10px 12px;font-size:13px;color:var(--muted);line-height:1.8}
/* 音量弹层 */
#mVol{position:fixed;top:82px;right:36px;display:none;flex-direction:column;align-items:center;gap:12px;background:rgba(8,18,42,.96);border:1px solid var(--line);border-radius:14px;padding:14px 14px;backdrop-filter:blur(10px);z-index:70}
#mVol.on{display:flex}
#mVolVal{font-size:13px;color:var(--orange2);letter-spacing:.06em}
#mVol input[type=range]{-webkit-appearance:none;appearance:none;width:120px;height:5px;border-radius:3px;background:linear-gradient(90deg,var(--orange) var(--v,80%),rgba(255,255,255,.15) var(--v,80%));outline:none;cursor:pointer}
#mVol input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:16px;height:16px;border-radius:50%;background:var(--orange);border:2px solid rgba(255,255,255,.35);box-shadow:0 0 10px rgba(255,122,26,.6);cursor:pointer}
#mVol input[type=range]::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:var(--orange);border:2px solid rgba(255,255,255,.35);box-shadow:0 0 10px rgba(255,122,26,.6);cursor:pointer}
#mVolBtn.muted{color:var(--muted)}
/* 播放进度弹层 */
#mSeek{position:fixed;top:82px;right:36px;display:none;align-items:center;gap:10px;background:rgba(8,18,42,.96);border:1px solid var(--line);border-radius:14px;padding:14px;backdrop-filter:blur(10px);z-index:70}
#mSeek.on{display:flex}
#mSeek span{font-size:12.5px;color:var(--muted);min-width:38px;text-align:center;font-variant-numeric:tabular-nums;letter-spacing:.03em}
#mSeek input[type=range]{-webkit-appearance:none;appearance:none;width:200px;height:5px;border-radius:3px;background:linear-gradient(90deg,var(--orange) var(--p,0%),rgba(255,255,255,.15) var(--p,0%));outline:none;cursor:pointer}
#mSeek input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:16px;height:16px;border-radius:50%;background:var(--orange);border:2px solid rgba(255,255,255,.35);box-shadow:0 0 10px rgba(255,122,26,.6);cursor:pointer}
#mSeek input[type=range]::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:var(--orange);border:2px solid rgba(255,255,255,.35);box-shadow:0 0 10px rgba(255,122,26,.6);cursor:pointer}
#homeBtn:hover{border-color:var(--orange);color:var(--orange2);box-shadow:0 0 18px rgba(255,122,26,.3)}
#homeBtn svg{width:18px;height:18px;fill:currentColor}

/* ===== 字号增强 · 远距离观看优化 ===== */
.card p{font-size:19.5px;line-height:1.72}
.card h4{font-size:22px}
.s-head h2{font-size:52px}
.s-head .sub{font-size:21px}
.kicker{font-size:16px}
.s-head .no{font-size:96px;min-width:120px}
.s-head .tag{font-size:15.5px}
.cpe .letter{font-size:52px}
.cpe .en{font-size:13.5px}
.cpe .zh{font-size:20px}
.cpe .ds{font-size:16.5px;line-height:1.68}
.step .yr{font-size:32px}
.step .tt{font-size:24px}
.step .dd{font-size:18px;line-height:1.68}
.vision-quote{font-size:20px}
.chain-item .lv{font-size:16.5px}
.chain-item .cs{font-size:18.5px}
.mini-cards .card h4{font-size:19.5px}
.mini-cards .card p{font-size:16.5px}
.case .cat{font-size:16px}
.case h5{font-size:23px}
.case .who{font-size:16px}
.case p{font-size:19.5px;line-height:1.62}
.case .qr{width:104px;height:104px}
.tl-item .dt{font-size:27px}
.tl-item .tx{font-size:17.5px;line-height:1.68}
.song .qrbox{width:140px}
.song .qrbox .q{width:140px;height:140px}
.song .qrbox .c{font-size:14px}
.tri h3{font-size:26px}
.colx h3{font-size:26px}
.tri p{font-size:17.5px;line-height:1.72}
.colx p{font-size:16.5px;line-height:1.68}
.ach-item h5{font-size:19.5px}
.ach-item p{font-size:16.5px;line-height:1.66}
.ph .cap{font-size:14.5px}
.prelude{font-size:23px;line-height:2}
.prelude .hl{font-size:25px}
.mv .n{font-size:48px}
.mv .t{font-size:24px}
.mv .e{font-size:14px}
.mv .d{font-size:16.5px;line-height:1.7}
.mv::after{font-size:14px}

/* ============ 第一乐章 c：首批研究员 ============ */
.team-lead{font-size:18px;color:var(--muted);letter-spacing:.14em;margin:2px 4px 18px}
.team-lead b{color:var(--orange2)}
.team-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-template-rows:repeat(4,1fr);gap:16px;flex:1;min-height:0}
.tm{display:flex;gap:14px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:12px 16px;position:relative;overflow:hidden;min-height:0}
.tm::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--accent,var(--orange))}
.tm .av{width:78px;height:78px;flex:none;border-radius:50%;overflow:hidden;border:2px solid rgba(255,178,94,.45);box-shadow:0 6px 16px rgba(0,0,0,.35);background:#0A142E}
.tm .av img{width:100%;height:100%;object-fit:cover;display:block}
.tm .info{min-width:0;display:flex;flex-direction:column;gap:3px}
.tm .nm{font-size:21px;font-weight:800;letter-spacing:.06em}
.tm .rl{font-size:13.5px;color:var(--orange2);font-weight:700;letter-spacing:.1em}
.tm .fd{font-size:13.5px;color:#AFC0E4;line-height:1.5}
/* ============ 第一乐章 d：在研课题 ============ */
.pj-list{display:flex;flex-direction:column;gap:14px;flex:1;min-height:0;justify-content:center}
.pj{display:flex;align-items:center;gap:22px;padding:16px 26px;border-radius:16px;background:var(--card);border:1px solid var(--line);border-left:4px solid var(--orange);position:relative;overflow:hidden}
.pj-no{font-family:Consolas,"Courier New",monospace;font-size:18px;color:var(--orange2);letter-spacing:.04em;flex:none;width:118px}
.pj-main{flex:1;min-width:0}
.pj-title{font-size:21px;font-weight:700;color:var(--ink);line-height:1.4}
.pj-alias{color:var(--cyan);font-size:15px;margin-left:10px;font-weight:600}
.pj-dir{font-size:14.5px;color:var(--muted);margin-top:4px;letter-spacing:.06em}
.pj-side{flex:none;text-align:right;display:flex;flex-direction:column;gap:7px;align-items:flex-end}
.pj-st{padding:3px 15px;border-radius:999px;font-size:13.5px;letter-spacing:.14em}
.pj-st.done{background:rgba(79,195,247,.13);color:var(--cyan);border:1px solid rgba(79,195,247,.4)}
.pj-st.doing{background:rgba(255,122,26,.16);color:var(--orange2);border:1px solid rgba(255,122,26,.5);box-shadow:0 0 12px rgba(255,122,26,.25)}
.pj-st.plan{background:rgba(255,255,255,.06);color:var(--muted);border:1px solid var(--line)}
.pj-lead{font-size:14px;color:#AFC0E4}
.pj-lead b{color:var(--ink)}
.cover-kicker{font-size:22px}
.cover-title{font-size:124px}
.cover-sub{font-size:43px}
.cover-desc{font-size:21px;line-height:2}
.movements span{font-size:18px}
.master-hero .veil .t{font-size:28px}
.master-hero .veil .d{font-size:18.5px}
.end-quote{font-size:70px}
.end-sub{font-size:22px}
.end-qr .q{width:118px;height:118px}
.end-qr .c{font-size:18px}
.foot{font-size:15px}
#nav{font-size:15px}
#counter{font-size:17px}
@media (prefers-reduced-motion:reduce){
  /* 禁用全部动画，但豁免展览装饰：封面/终章音频条、翻页按钮（含其 ::after 伪元素本就不受 * 影响）。
     用 :not() 排除而非事后覆盖，避免 !important 简写冲掉 JS 为每根条柱设置的错峰节奏 */
  *:not(.eq):not(.end-eq):not(.eq *):not(.end-eq *):not(#nav #next){animation:none!important;transition:none!important}
}

/* 中等宽度（平板/小窗 821~1280px）：紧凑档，避免按钮挤压换行 */
@media (min-width:900px) and (max-width:1280px){
  #topbar{gap:8px;top:14px;right:20px}
  #homeBtn{height:40px;padding:0 14px;font-size:13.5px;gap:6px}
  #gameBtn,#coverBtn,#createBtn{height:40px;padding:0 14px;font-size:13.5px;gap:6px}
  #musicPlayer{height:40px;padding:0 10px;gap:6px}
  #musicPlayer>button{width:28px;height:28px;font-size:12px}
  #mCoverBtn{width:28px!important;height:28px!important}
  #mTitle{max-width:100px;font-size:12.5px}
}

/* ============ 移动端响应式（手机/竖屏平板/窄屏 ≤899px） ============ */
@media (max-width:899px){
  html,body{height:auto;overflow:auto;-webkit-text-size-adjust:100%}
  #viewport{position:static;inset:auto;overflow:visible;min-height:100vh}
  #stage{position:static;left:auto;top:auto;transform:none!important;width:100%;height:auto}
  .slide{position:relative;inset:auto;width:100%;min-height:100vh;height:auto;display:none;overflow:visible;padding-bottom:90px}
  .slide.active{display:block;visibility:visible;opacity:1}
  .pad{position:static;inset:auto;display:block;padding:104px 14px 20px}
  .foot{position:static;display:flex;flex-direction:column;align-items:center;gap:4px;padding:0 14px 108px;font-size:11px;letter-spacing:.08em;text-align:center}
  /* 页眉 */
  .s-head{display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px;padding-bottom:12px;margin-bottom:14px}
  .s-head .no{font-size:40px;min-width:0;line-height:1}
  .s-head .titles{flex:1;min-width:180px}
  .kicker{font-size:11px;letter-spacing:.3em;margin-bottom:4px}
  .s-head h2{font-size:23px}
  .s-head .sub{font-size:13px;margin-top:4px;letter-spacing:.06em}
  .s-head .tag{font-size:11px;padding:5px 12px;flex-basis:100%}
  .s-body{flex-direction:column!important;gap:14px;min-height:0}
  .card{padding:14px 15px;border-radius:14px}
  .card h4{font-size:15px;margin-bottom:8px}
  .card h4::before{height:15px}
  .card p{font-size:13px;line-height:1.75}
  .prelude{font-size:14px;line-height:1.9;padding:0}
  .prelude .hl{font-size:14.5px}
  /* 序曲目录 */
  .mv-grid{grid-template-columns:1fr 1fr;gap:10px}
  .mv{padding:14px 12px;border-radius:14px}
  .mv .n{font-size:24px}
  .mv .t{font-size:15px}
  .mv .e{font-size:9.5px;letter-spacing:.12em}
  .mv .d{font-size:11.5px}
  .mv::after{display:none}
  /* 第一乐章 */
  .cpe-row{grid-template-columns:1fr;gap:10px}
  .cpe .letter{font-size:30px}
  .cpe .zh{font-size:15px}
  .cpe .ds{font-size:12px}
  .col-img{grid-template-rows:none;gap:12px}
  /* 第一乐章第一页：手机端图文穿插排列（董事长指示→图1→论证会→图2→CPE卡） */
  #s2 .col-text{display:contents}
  #s2 .col-img{display:contents}
  #s2 .col-text .card:nth-of-type(1){order:1}
  #s2 .col-img .ph:nth-of-type(1){order:2}
  #s2 .col-text .card:nth-of-type(2){order:3}
  #s2 .col-img .ph:nth-of-type(2){order:4}
  #s2 .col-text .cpe-row{order:5}
  .steps{flex-direction:column;gap:12px;margin-top:8px}
  .step{padding:14px 2px 8px}
  .step+.step{border-left:none}
  .step .yr{font-size:18px}
  .step .tt{font-size:15px}
  .step .dd{font-size:12px}
  .vision-quote{font-size:12.5px;margin-top:12px}
  /* 第二乐章 */
  .chain-item{padding:10px 12px;gap:10px;align-items:flex-start}
  .chain-item .lv{font-size:11.5px;padding:5px 8px}
  .chain-item .cs{font-size:12px}
  .mini-cards{grid-template-columns:1fr;gap:10px;margin-top:10px}
  .stat-num{font-size:22px}
  .master-hero .veil{position:static;padding:12px 14px;background:rgba(4,10,26,.88)}
  .master-hero .veil .t{font-size:16px;margin-bottom:4px}
  .master-hero .veil .d{font-size:12px}
  .master-side{gap:12px}
  /* 第三乐章 */
  .case-grid{grid-template-columns:1fr;grid-template-rows:none;gap:10px}
  .case{padding:12px;gap:10px}
  .case .qr{width:64px;height:64px;padding:5px;border-radius:8px}
  .case h5{font-size:13.5px}
  .case .who{font-size:11px}
  .case p{font-size:11.5px}
  .case .cat{font-size:10.5px}
  /* 时间轴 */
  .tl-row{grid-template-columns:1fr 1fr;gap:10px}
  .tl::before{display:none}
  .tl-item{padding-top:12px}
  .tl-item::before{display:none}
  .tl-item .dt{font-size:16px}
  .tl-item .tx{font-size:11.5px;margin-top:4px}
  .tl-item.card{padding:12px 13px 10px}
  .song{flex-direction:column;gap:12px}
  .song .qrbox{width:104px}
  .song .qrbox .q{width:104px;height:104px}
  .song .qrbox .c{font-size:11px}
  .mv-btn{font-size:13px;padding:10px 20px}
  /* 图文专题 */
  .feat-text{flex:none;padding:0}
  .feat-text h3{font-size:21px;margin-bottom:10px}
  .feat-text p{font-size:13px;line-height:1.85}
  .feat-text .q{font-size:12px;margin-top:14px}
  .colx{gap:8px}
  .colx h3{font-size:16px}
  .colx p{font-size:12px}
  .trio{flex-direction:column;align-items:stretch;gap:10px}
  .trio .ph{aspect-ratio:auto;max-height:none}
  .duo{flex-direction:column;align-items:stretch;gap:10px}
  /* 研究员 */
  .team-lead{font-size:12px;margin:0 2px 10px}
  .team-grid{grid-template-columns:1fr;grid-template-rows:none;gap:10px;flex:none}
  /* 课题 */
  .pj-list{gap:10px}
  .pj{flex-direction:column;align-items:flex-start;gap:6px;padding:12px 14px}
  .pj-no{width:auto;font-size:13px}
  .pj-title{font-size:15px}
  .pj-alias{font-size:12px;margin-left:6px}
  .pj-dir{font-size:11.5px}
  .pj-side{flex-direction:row;align-items:center}
  .pj-st{font-size:11px;padding:2px 10px}
  .pj-lead{font-size:11.5px}
  /* 终章 */
  .ach{gap:10px}
  .ach-item{padding:10px 12px;gap:10px}
  .ach-item .medal{width:32px;height:32px;font-size:16px}
  .ach-item h5{font-size:13px}
  .ach-item p{font-size:11px}
  .pics{gap:10px}
  .pics .rowA,.pics .rowB,.pics .row3{flex-direction:column;flex:none;gap:10px}
  .end-quote{font-size:28px;padding:0 8px}
  .end-sub{font-size:12px;letter-spacing:.18em;margin-top:14px}
  .end-eq{height:44px;margin-top:24px;justify-content:center;max-width:100%}
  .end-qr{flex-direction:column;margin-top:20px;gap:10px}
  .end-qr .q{width:92px;height:92px}
  .end-qr .c{text-align:center;font-size:12px}
  /* 封面 */
  .eq{height:52px;margin-bottom:16px;gap:6px;justify-content:center;max-width:100%}
  .eq i{width:6px}
  .cover-kicker{font-size:11px;letter-spacing:.4em;margin-bottom:12px}
  .cover-title{font-size:clamp(24px,9vw,48px);white-space:nowrap;letter-spacing:.04em}
  .cover-sub{font-size:17px;letter-spacing:.16em;margin-top:12px}
  .cover-line{width:72%;margin:20px auto 16px}
  .cover-desc{font-size:12px;line-height:1.9;max-width:100%}
  .movements{flex-wrap:wrap;gap:8px;margin-top:22px;justify-content:center}
  .movements span{font-size:11px;padding:7px 12px;letter-spacing:.06em}
  #s0 .pad{padding-top:120px}
  #s10 .pad{padding-top:120px}
  /* 图片容器：固定高度改为自适应 */
  .ph{height:auto!important;min-height:0;margin:0}
  .ph img{position:static;width:100%;height:auto!important;max-height:62vh;object-fit:contain}
  .ph .cap{position:static;background:rgba(4,10,26,.85);padding:7px 10px;font-size:11px}
  img.fillbg{display:none}
  .master-hero{flex:none;height:auto!important}
  .master-hero img{position:static;width:100%;height:auto!important;max-height:62vh}
  .stack{gap:10px}
  /* 轮播图：手机竖屏改为纵向平铺全部图片（横屏/PC 仍用轮播） */
  .carousel{flex:none;height:auto;min-height:0;overflow:visible;touch-action:auto;background:none;border:none;box-shadow:none;border-radius:0}
  .carousel img:not(.fillbg){position:static;width:100%;height:auto;max-height:none;opacity:1!important;transition:none;
    border-radius:14px;border:1px solid var(--line);margin-bottom:14px;box-shadow:0 10px 26px rgba(0,0,0,.35)}
  .carousel img.fillbg{display:none}
  .carousel .dots2{display:none}
  .carousel .car-tag{position:static;display:inline-block;margin:0 0 10px;font-size:12px;padding:5px 12px}
  /* 竖版证书：手机端恢复自适应宽度 */
  .cert-fig{width:100%!important;height:auto!important;max-width:340px;margin:0 auto}
  /* 知识图谱等独立图列：强制撑满栏宽（覆盖内联的等高比/最大高度链，避免个别浏览器不生效） */
  .col-img .ph{width:100%!important;max-width:none!important;aspect-ratio:auto!important;max-height:none!important;margin:0!important;align-self:stretch!important}
  .col-img .ph img{width:100%!important;height:auto!important;max-height:none!important}
  .strip{flex:none;height:50vw;min-height:170px}
  .polaroid{padding:6px 6px 22px}
  .polaroid .cap{font-size:10.5px;bottom:4px}
  /* 固定UI改悬浮 */
  #progress{position:fixed}
  #dots{position:fixed;bottom:10px;gap:6px}
  #dots i{width:15px;height:4px}
  #dots i.on{width:22px}
  #nav{position:fixed;bottom:24px;right:10px;gap:7px;font-size:12px}
  #nav button{width:36px;height:36px;font-size:14px}
  #nav #play{height:32px;padding:0 9px}
  #nav #play .knob{width:30px;height:17px}
  #nav #play .knob::after{width:12px;height:12px;top:2.5px;left:2.5px}
  #nav #play.on .knob::after{left:15px}
  #counter{display:none}
  #hint{display:none}
  #topbar{position:fixed;top:6px;left:72px;right:6px;gap:5px;flex-wrap:wrap;justify-content:flex-end;max-width:none}
  #brand{position:fixed;top:6px;left:6px;gap:5px}
  #brand img{width:28px;height:28px}
  body.brand-top #brand{left:6px;top:6px;transform:none}
  body.brand-top #brand img{width:28px;height:28px}
  #gameBtn,#coverBtn,#createBtn{height:32px;padding:0 10px;font-size:11px;letter-spacing:.02em;gap:4px}
  #homeBtn{height:32px;padding:0 10px;font-size:11px;letter-spacing:.02em}
  #musicPlayer{height:34px;padding:0 7px;gap:4px}
  #musicPlayer>button{width:25px;height:25px;font-size:11px}
  #mTitle{display:none}
  #mCoverBtn{width:25px!important;height:25px!important}
  #mList{position:fixed;top:48px;bottom:auto;right:8px;left:8px;width:auto;max-height:70vh;overflow:auto}
  #mVol{position:fixed;top:48px;bottom:auto;right:8px}
  #mSeek{position:fixed;top:48px;bottom:auto;left:8px;right:8px;width:auto}
  /* 全屏视频层 */
  #eoverlay{position:fixed;inset:0}
  .ev-ctl{width:94%;gap:6px;padding:8px 10px;flex-wrap:wrap;border-radius:16px}
  .ev-ctl button{height:30px;min-width:30px;font-size:12px;padding:0 8px}
  #evFull{display:flex}
  #evVol{width:64px}
  #evClose{padding:0 12px}
}