/* ============================================================
   应援金曲榜 · Fan Anthem Rank
   深色渐变 / 玻璃拟态 / 细腻排版
============================================================ */
:root{
  --bg:#07070f;
  --surface:rgba(255,255,255,.055);
  --surface-2:rgba(255,255,255,.09);
  --border:rgba(255,255,255,.10);
  --border-strong:rgba(255,255,255,.18);
  --text:#f1f5f9;
  --muted:#9aa3b5;
  --primary:#8b5cf6;
  --secondary:#06b6d4;
  --pink:#f472b6;
  --amber:#fbbf24;
  --green:#34d399;
  --red:#fb7185;
  --grad:linear-gradient(135deg,#8b5cf6,#06b6d4);
  --grad-hot:linear-gradient(135deg,#fb7185,#f59e0b);
  --grad-gold:linear-gradient(135deg,#fbbf24,#f472b6);
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 14px 44px rgba(0,0,0,.5);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  --ease:cubic-bezier(.22,.9,.32,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  min-height:100vh;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  line-height:1.6;
}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea,select{font-family:inherit;color:inherit}
img{max-width:100%;display:block}
::selection{background:rgba(139,92,246,.45);color:#fff}
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:8px}
::-webkit-scrollbar-track{background:transparent}

/* ---------------- 背景 ------------------ */
.bg-aurora{
  position:fixed;inset:0;z-index:-2;overflow:hidden;
  background:
    radial-gradient(1200px 800px at 82% -10%,rgba(139,92,246,.18),transparent 62%),
    radial-gradient(1000px 700px at -8% 28%,rgba(6,182,212,.14),transparent 60%),
    radial-gradient(900px 700px at 55% 118%,rgba(244,114,182,.10),transparent 60%),
    linear-gradient(180deg,#0c0c1d,#07070f);
}
.bg-aurora::before,.bg-aurora::after{content:"";position:absolute;border-radius:50%;filter:blur(96px);opacity:.5;pointer-events:none}
.bg-aurora::before{width:520px;height:520px;left:-140px;top:14%;background:rgba(139,92,246,.34);animation:drift1 18s ease-in-out infinite alternate}
.bg-aurora::after{width:460px;height:460px;right:-120px;top:54%;background:rgba(6,182,212,.28);animation:drift2 22s ease-in-out infinite alternate}
.bg-grid{
  position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.32;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:44px 44px;
  -webkit-mask-image:radial-gradient(ellipse at center,#000 20%,transparent 78%);
  mask-image:radial-gradient(ellipse at center,#000 20%,transparent 78%);
}
@keyframes drift1{from{transform:translate(0,0) scale(1)}to{transform:translate(90px,46px) scale(1.18)}}
@keyframes drift2{from{transform:translate(0,0) scale(1)}to{transform:translate(-80px,-56px) scale(1.12)}}

/* ---------------- 布局 ------------------ */
.container{width:min(1120px,92%);margin:0 auto}
main{min-height:60vh;padding:30px 0 130px;animation:fadeUp .6s ease both}
@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;margin:44px 0 20px;flex-wrap:wrap}
.section-title{font-size:clamp(20px,3vw,26px);font-weight:800;letter-spacing:.5px;display:flex;align-items:center;gap:10px}
.section-title::before{content:"";width:5px;height:22px;border-radius:4px;background:var(--grad)}
.section-sub{color:var(--muted);font-size:14px}

/* ---------------- 导航栏 ------------------ */
.navbar{
  position:sticky;top:0;z-index:100;
  backdrop-filter:blur(20px) saturate(150%);-webkit-backdrop-filter:blur(20px) saturate(150%);
  background:rgba(8,8,18,.62);
  border-bottom:1px solid var(--border);
}
.nav-inner{width:min(1120px,92%);margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:18px;letter-spacing:.4px;transition:opacity .25s}
.brand:hover{opacity:.85}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:grid;place-items:center;font-size:16px;color:#fff;
  background:var(--grad);box-shadow:0 4px 16px rgba(139,92,246,.45);animation:floatMark 5s ease-in-out infinite;
}
@keyframes floatMark{0%,100%{transform:translateY(0) rotate(0deg)}50%{transform:translateY(-3px) rotate(-6deg)}}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  position:relative;padding:8px 16px;border-radius:999px;font-size:15px;font-weight:600;color:var(--muted);
  transition:color .25s,background .25s;
}
.nav-links a:hover{color:#fff;background:var(--surface-2)}
.nav-links a.active{color:#fff;background:linear-gradient(135deg,rgba(139,92,246,.28),rgba(6,182,212,.28));box-shadow:inset 0 0 0 1px var(--border-strong)}
.nav-links a.active::after{content:"";position:absolute;left:50%;bottom:2px;width:5px;height:5px;border-radius:50%;background:var(--secondary);transform:translateX(-50%);box-shadow:0 0 8px var(--secondary)}
.nav-toggle{display:none;width:40px;height:40px;border-radius:10px;background:var(--surface-2);flex-direction:column;gap:4px;align-items:center;justify-content:center;transition:transform .3s}
.nav-toggle span{width:16px;height:2px;border-radius:2px;background:#fff;transition:transform .3s,opacity .3s}
.nav-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------------- Hero ------------------ */
.hero{text-align:center;padding:64px 0 34px;position:relative}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:8px 18px;border-radius:999px;font-size:14px;font-weight:600;
  background:var(--surface-2);border:1px solid var(--border-strong);color:var(--text);
  box-shadow:0 4px 20px rgba(0,0,0,.3);animation:fadeUp .6s .05s ease both;
}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 0 0 rgba(52,211,153,.7);animation:pulse 1.8s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(52,211,153,.7)}70%{box-shadow:0 0 0 9px rgba(52,211,153,0)}100%{box-shadow:0 0 0 0 rgba(52,211,153,0)}}
.hero-title{
  margin:22px 0 6px;font-size:clamp(40px,7vw,72px);font-weight:900;letter-spacing:2px;line-height:1.1;
  background:linear-gradient(120deg,#fff 0%,#c4b5fd 45%,#67e8f9 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  filter:drop-shadow(0 6px 28px rgba(139,92,246,.35));animation:fadeUp .6s .12s ease both;
}
.hero-sub{color:var(--muted);font-size:clamp(15px,2.4vw,18px);animation:fadeUp .6s .18s ease both}
.hero-sub b{color:#e9d5ff;font-weight:700}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:30px;animation:fadeUp .6s .24s ease both}
.deadline{
  margin:26px auto 0;width:fit-content;display:inline-flex;align-items:center;gap:10px;padding:10px 20px;border-radius:14px;
  background:var(--surface);border:1px dashed var(--border-strong);color:var(--muted);font-size:14px;animation:fadeUp .6s .3s ease both;
}
.deadline b{color:var(--amber);font-variant-numeric:tabular-nums;letter-spacing:1px}
.deadline .cal{color:var(--pink)}

/* ---------------- 按钮 ------------------ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 28px;border-radius:999px;
  font-size:15px;font-weight:700;letter-spacing:.5px;transition:transform .25s var(--ease),box-shadow .25s,filter .25s;user-select:none;
}
.btn:active{transform:scale(.96)}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 26px rgba(139,92,246,.4)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 34px rgba(139,92,246,.55);filter:brightness(1.08)}
.btn-ghost{background:var(--surface-2);border:1px solid var(--border-strong);color:var(--text)}
.btn-ghost:hover{transform:translateY(-2px);background:rgba(255,255,255,.14)}
.btn-lg{padding:15px 34px;font-size:16px}

/* ---------------- 统计 ------------------ */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:34px 0 6px}
.stat{
  padding:22px 18px;border-radius:var(--radius);text-align:center;position:relative;overflow:hidden;
  background:var(--surface);border:1px solid var(--border);transition:transform .3s var(--ease),border-color .3s;
}
.stat:hover{transform:translateY(-4px);border-color:var(--border-strong)}
.stat::before{content:"";position:absolute;top:-60%;left:-40%;width:180%;height:180%;background:radial-gradient(circle,rgba(139,92,246,.12),transparent 60%);opacity:0;transition:opacity .4s}
.stat:hover::before{opacity:1}
.stat-num{font-size:clamp(26px,4vw,40px);font-weight:900;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat-label{color:var(--muted);font-size:13px;margin-top:4px;letter-spacing:1px}

/* ---------------- 榜单卡片 ------------------ */
.song-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:22px}
.song-card{
  border-radius:var(--radius);overflow:hidden;position:relative;transition:transform .35s var(--ease),box-shadow .35s,border-color .35s;
  animation:fadeUp .55s ease both;
}
.song-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--border-strong)}
.song-cover{
  position:relative;height:190px;display:grid;place-items:center;overflow:hidden;transition:transform .5s var(--ease);
}
.song-cover::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 30% 20%,rgba(255,255,255,.16),transparent 55%)}
.song-cover:hover::after{opacity:.4}
.song-emoji{font-size:66px;filter:drop-shadow(0 6px 18px rgba(0,0,0,.35));transition:transform .4s var(--ease)}
.song-card:hover .song-emoji{transform:scale(1.12) rotate(-4deg)}
.song-badges{position:absolute;top:12px;left:12px;display:flex;gap:6px;z-index:2}
.badge{padding:4px 10px;border-radius:999px;font-size:11px;font-weight:800;letter-spacing:1px;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.badge-new{background:rgba(52,211,153,.25);color:#a7f3d0;border:1px solid rgba(52,211,153,.4)}
.badge-hot{background:rgba(251,113,133,.25);color:#fecdd3;border:1px solid rgba(251,113,133,.4)}
.play-fab{
  position:absolute;inset:0;z-index:2;display:grid;place-items:center;color:#fff;
  background:rgba(8,8,18,.0);transition:background .3s;
}
.play-fab .play-ico{
  width:58px;height:58px;border-radius:50%;display:grid;place-items:center;font-size:20px;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.4);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  transform:scale(.6);opacity:0;transition:transform .3s var(--ease),opacity .3s;box-shadow:0 8px 24px rgba(0,0,0,.3);
}
.song-card:hover .play-ico,.song-card .play-ico.sticky{transform:scale(1);opacity:1}
.play-ico.paused{background:rgba(255,255,255,.92);color:#1e1b4b}
.eq{position:absolute;right:14px;bottom:12px;display:flex;gap:2.5px;align-items:flex-end;height:16px;color:rgba(255,255,255,.95);z-index:2}
.eq span{width:3px;border-radius:2px;background:currentColor;height:4px}
.eq.playing span{animation:eqbar 1s ease-in-out infinite}
.eq.playing span:nth-child(2){animation-delay:.18s}
.eq.playing span:nth-child(3){animation-delay:.36s}
@keyframes eqbar{0%,100%{height:4px}50%{height:16px}}
.song-rank{
  font-size:12px;font-weight:800;padding:3px 9px;border-radius:8px;color:var(--muted);
  background:var(--surface-2);border:1px solid var(--border);letter-spacing:.5px;
}
.rank-top{color:#1e1b4b;background:linear-gradient(135deg,#fbbf24,#f59e0b);border-color:transparent}
.rank-2{color:#1e1b4b;background:linear-gradient(135deg,#e2e8f0,#94a3b8);border-color:transparent}
.rank-3{color:#451a03;background:linear-gradient(135deg,#fcd34d,#b45309);border-color:transparent}
.song-body{padding:18px 18px 20px}
.song-title-row{display:flex;align-items:center;justify-content:space-between;gap:10px}
.song-title{font-size:19px;font-weight:800;letter-spacing:.3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.song-artist{color:var(--muted);font-size:14px;margin:3px 0 12px}
.song-artist::before{content:"· ";color:var(--secondary)}
.song-tags{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:12px}
.tag{padding:3px 11px;border-radius:999px;font-size:12px;font-weight:600;background:var(--surface-2);border:1px solid var(--border);color:#cbd5e1}
.song-meta{display:flex;gap:16px;color:var(--muted);font-size:12.5px;padding-bottom:14px;border-bottom:1px dashed var(--border);margin-bottom:14px}
.song-meta span{display:inline-flex;align-items:center;gap:4px}
.song-actions{display:flex;align-items:center;gap:10px}
.btn-vote{
  position:relative;display:inline-flex;align-items:center;gap:7px;padding:10px 20px;border-radius:999px;font-weight:800;font-size:15px;
  background:var(--surface-2);border:1px solid var(--border-strong);color:#fecdd3;transition:all .3s var(--ease);overflow:visible;
}
.btn-vote .heart{color:var(--red);transition:transform .3s var(--ease);display:inline-block}
.btn-vote:hover{transform:translateY(-2px);background:rgba(251,113,133,.14);border-color:rgba(251,113,133,.5)}
.btn-vote:hover .heart{transform:scale(1.25)}
.btn-vote.voted{background:linear-gradient(135deg,rgba(251,113,133,.24),rgba(244,114,182,.24));border-color:rgba(251,113,133,.65);color:#ffe4e6;box-shadow:0 6px 22px rgba(251,113,133,.25)}
.btn-vote.voted .heart{color:#fda4af;animation:heartBeat .6s var(--ease)}
@keyframes heartBeat{0%{transform:scale(1)}30%{transform:scale(1.45)}60%{transform:scale(.85)}100%{transform:scale(1.15)}}
.btn-vote:disabled{opacity:.55;cursor:not-allowed}
.burst-heart{position:absolute;bottom:45%;pointer-events:none;color:var(--red);font-style:normal;font-size:13px;animation:burst .9s ease-out forwards;z-index:5;filter:drop-shadow(0 0 6px rgba(251,113,133,.6))}
@keyframes burst{0%{transform:translate(0,0) scale(.5);opacity:1}100%{transform:translate(var(--dx),-52px) scale(1.35);opacity:0}}
.btn-link{
  flex:1;text-align:center;padding:10px 12px;border-radius:999px;font-size:14px;font-weight:700;
  background:var(--surface-2);border:1px solid var(--border);color:#cbd5e1;transition:all .3s var(--ease);
}
.btn-link:hover{color:#fff;border-color:var(--border-strong);background:rgba(255,255,255,.13)}
.btn-icon{
  width:42px;height:42px;border-radius:50%;display:grid;place-items:center;font-size:16px;
  background:var(--surface-2);border:1px solid var(--border);color:#cbd5e1;transition:all .3s var(--ease);
}
.btn-icon:hover{transform:translateY(-2px) rotate(8deg);color:#67e8f9;border-color:rgba(103,232,249,.5);background:rgba(6,182,212,.12)}

/* ---------------- 播放器 Dock ------------------ */
.player-dock{
  position:fixed;left:50%;bottom:18px;transform:translate(-50%,140%);z-index:200;width:min(560px,calc(100% - 32px));
  display:flex;align-items:center;gap:14px;padding:12px 16px;border-radius:20px;
  background:rgba(14,14,28,.72);border:1px solid var(--border-strong);backdrop-filter:blur(22px) saturate(160%);-webkit-backdrop-filter:blur(22px) saturate(160%);
  box-shadow:0 18px 54px rgba(0,0,0,.55);transition:transform .5s var(--ease);
}
.player-dock.show{transform:translate(-50%,0)}
.player-cover{
  width:52px;height:52px;border-radius:14px;display:grid;place-items:center;font-size:24px;flex-shrink:0;color:#fff;
  box-shadow:0 6px 18px rgba(0,0,0,.35);
}
.player-cover.spin{animation:spin 9s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.player-info{flex:1;min-width:0}
.player-title{font-size:14.5px;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.player-artist{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.player-progress{flex:1;height:5px;border-radius:4px;background:rgba(255,255,255,.12);overflow:hidden;cursor:pointer;min-width:60px}
.player-bar{height:100%;width:0%;border-radius:4px;background:var(--grad);position:relative;transition:width .2s linear}
.player-bar::after{content:"";position:absolute;right:-2px;top:50%;transform:translateY(-50%);width:9px;height:9px;border-radius:50%;background:#fff;box-shadow:0 0 8px rgba(255,255,255,.7)}
.player-ctrl{display:flex;gap:6px}
.player-btn{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;font-size:13px;color:#fff;
  background:var(--surface-2);border:1px solid var(--border);transition:all .25s;
}
.player-btn:hover{background:rgba(255,255,255,.16);transform:scale(1.06)}
.player-btn.play{background:var(--grad);box-shadow:0 4px 16px rgba(139,92,246,.5)}

/* ---------------- 详情页 ------------------ */
.back-link{display:inline-flex;align-items:center;gap:8px;color:var(--muted);font-size:14px;font-weight:600;margin-bottom:22px;transition:color .25s,gap .25s}
.back-link:hover{color:#fff;gap:12px}
.detail-layout{display:grid;grid-template-columns:380px 1fr;gap:28px;align-items:start}
.detail-cover-wrap{position:sticky;top:90px}
.detail-cover{
  aspect-ratio:1/1;border-radius:26px;display:grid;place-items:center;font-size:110px;position:relative;overflow:hidden;
  box-shadow:var(--shadow);border:1px solid var(--border-strong);animation:fadeUp .6s ease both;
}
.detail-cover::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 30% 20%,rgba(255,255,255,.18),transparent 55%)}
.detail-cover .detail-emoji{filter:drop-shadow(0 8px 24px rgba(0,0,0,.4));animation:floatMark 6s ease-in-out infinite}
.detail-play-row{display:flex;gap:12px;margin-top:18px;animation:fadeUp .6s .1s ease both}
.detail-info{animation:fadeUp .6s .08s ease both}
.detail-title{font-size:clamp(28px,4.4vw,44px);font-weight:900;letter-spacing:.5px;line-height:1.2}
.detail-artist{color:var(--muted);font-size:17px;margin:10px 0 16px}
.detail-artist b{color:#e9d5ff}
.detail-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}
.detail-stats-row{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:24px}
.detail-stat{padding:14px 22px;border-radius:14px;background:var(--surface);border:1px solid var(--border);text-align:center;min-width:110px}
.detail-stat b{display:block;font-size:22px;font-weight:900;color:#fff}
.detail-stat span{font-size:12px;color:var(--muted)}
.detail-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:30px}
.lyrics-box{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:26px 26px 30px;position:relative;overflow:hidden;
}
.lyrics-box::before{content:"♫";position:absolute;right:-8px;top:-18px;font-size:120px;color:rgba(255,255,255,.035)}
.lyrics-title{font-size:16px;font-weight:800;letter-spacing:2px;margin-bottom:18px;display:flex;align-items:center;gap:8px;color:#c4b5fd}
.lyrics-title::before{content:"";width:4px;height:16px;border-radius:3px;background:var(--grad)}
.lyrics-line{padding:5px 0;color:#cbd5e1;font-size:15px;opacity:0;animation:lyricIn .5s var(--ease) forwards}
.lyrics-line.chorus{color:#f5f3ff;font-weight:700;letter-spacing:1px}
.lyrics-line.active{color:#67e8f9}
@keyframes lyricIn{from{opacity:0;transform:translateX(-10px)}to{opacity:1;transform:none}}

/* ---------------- 上传页 ------------------ */
.upload-wrap{max-width:760px;margin:0 auto}
.form-card{
  background:var(--surface);border:1px solid var(--border);border-radius:24px;padding:30px clamp(20px,4vw,40px);
  box-shadow:var(--shadow);animation:fadeUp .55s ease both;
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-field{margin-bottom:20px}
.form-label{display:block;font-size:14px;font-weight:700;margin-bottom:9px;color:#e2e8f0}
.form-label .req{color:var(--red)}
.form-input,.form-textarea,.form-select{
  width:100%;padding:13px 16px;border-radius:14px;font-size:15px;background:var(--surface-2);
  border:1px solid var(--border-strong);transition:border-color .25s,box-shadow .25s;outline:none;
}
.form-input:focus,.form-textarea:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(139,92,246,.16)}
.form-textarea{resize:vertical;min-height:150px;line-height:1.7}
.dropzone{
  border:2px dashed var(--border-strong);border-radius:16px;padding:26px 18px;text-align:center;cursor:pointer;transition:all .3s;position:relative;
  background:var(--surface-2);
}
.dropzone:hover,.dropzone.drag{border-color:var(--primary);background:rgba(139,92,246,.1)}
.dropzone .dz-icon{font-size:32px;display:block;margin-bottom:8px;filter:drop-shadow(0 4px 10px rgba(139,92,246,.4))}
.dropzone .dz-main{font-weight:700;font-size:15px}
.dropzone .dz-sub{color:var(--muted);font-size:12.5px;margin-top:4px}
.file-preview{display:flex;align-items:center;gap:12px;margin-top:14px;padding:12px 14px;border-radius:14px;background:rgba(52,211,153,.1);border:1px solid rgba(52,211,153,.35);animation:fadeUp .4s ease both}
.file-preview .fp-name{flex:1;font-size:13.5px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.file-preview .fp-size{font-size:12px;color:var(--muted)}
.file-preview .fp-remove{cursor:pointer;color:var(--red);font-weight:800}
.form-note{
  margin-top:6px;font-size:12.5px;color:var(--muted);display:flex;gap:6px;align-items:flex-start;line-height:1.6;
}
.form-note::before{content:"ℹ";flex-shrink:0}
.form-actions{display:flex;gap:14px;align-items:center;margin-top:8px;flex-wrap:wrap}
.form-actions .btn{flex:1;min-width:180px}
.upload-tip{
  margin-top:22px;display:flex;gap:14px;align-items:flex-start;padding:18px 20px;border-radius:16px;
  background:rgba(6,182,212,.08);border:1px solid rgba(6,182,212,.3);font-size:13.5px;color:#a5f3fc;line-height:1.7;
}
.upload-tip b{color:#67e8f9}

/* ---------------- 冠军页 ------------------ */
.champ-hero{text-align:center;padding:40px 0 30px;animation:fadeUp .6s ease both}
.crown{font-size:64px;display:inline-block;animation:floatMark 4s ease-in-out infinite;filter:drop-shadow(0 8px 26px rgba(251,191,36,.5))}
.champ-hero h1{font-size:clamp(30px,5vw,52px);font-weight:900;letter-spacing:2px;margin-top:6px;background:linear-gradient(120deg,#fde68a,#f472b6);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.champ-hero p{color:var(--muted);margin-top:8px}
.champ-card{
  max-width:640px;margin:26px auto;border-radius:28px;overflow:hidden;border:1px solid var(--border-strong);
  background:var(--surface);box-shadow:var(--shadow);animation:fadeUp .6s .1s ease both;
}
.champ-cover{height:250px;display:grid;place-items:center;position:relative;font-size:100px}
.champ-cover .crown-mini{position:absolute;top:14px;right:16px;font-size:30px;animation:floatMark 3s ease-in-out infinite}
.champ-cover::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 30% 20%,rgba(255,255,255,.18),transparent 55%)}
.champ-body{padding:26px 28px;text-align:center}
.champ-title{font-size:28px;font-weight:900;letter-spacing:.5px}
.champ-artist{color:var(--muted);margin:8px 0 16px;font-size:15px}
.champ-words{
  font-size:15px;color:#e9d5ff;line-height:1.9;padding:16px 18px;border-radius:16px;margin-bottom:18px;
  background:rgba(139,92,246,.1);border-left:3px solid var(--primary);text-align:left;font-style:italic;
}
.champ-words::before{content:"“";font-size:34px;color:var(--primary);line-height:0;vertical-align:-10px;margin-right:4px}
.champ-words::after{content:"”";font-size:34px;color:var(--primary);line-height:0;vertical-align:-10px;margin-left:4px}
.champ-meta{display:inline-flex;gap:8px;align-items:center;padding:9px 18px;border-radius:999px;background:var(--surface-2);border:1px solid var(--border);color:var(--amber);font-weight:800}
.official-comment{
  max-width:640px;margin:0 auto 10px;padding:24px 26px;border-radius:20px;position:relative;
  background:linear-gradient(135deg,rgba(251,191,36,.1),rgba(244,114,182,.08));border:1px solid rgba(251,191,36,.35);
  animation:fadeUp .6s .18s ease both;
}
.official-comment .oc-tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:800;color:var(--amber);margin-bottom:10px;letter-spacing:1px}
.official-comment p{font-size:15px;line-height:1.9;color:#fef3c7}
.podium{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:760px;margin:30px auto 0;align-items:end}
.podium-item{
  border-radius:20px;padding:20px 14px;text-align:center;background:var(--surface);border:1px solid var(--border);
  transition:transform .35s var(--ease);animation:fadeUp .6s ease both;
}
.podium-item:hover{transform:translateY(-5px)}
.podium-1{padding:30px 14px;background:linear-gradient(180deg,rgba(251,191,36,.16),var(--surface));border-color:rgba(251,191,36,.45)}
.podium-rank{font-size:34px;font-weight:900;background:var(--grad-gold);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.podium-item .pi-emoji{font-size:40px;margin:10px 0 8px;display:block}
.podium-title{font-weight:800;font-size:15.5px}
.podium-artist{color:var(--muted);font-size:12.5px;margin-top:3px}
.podium-votes{display:inline-block;margin-top:9px;font-size:12px;font-weight:700;padding:3px 12px;border-radius:999px;background:var(--surface-2);color:var(--amber)}
.champ-history{max-width:760px;margin:44px auto 0}
.history-row{
  display:flex;align-items:center;gap:16px;padding:18px 20px;border-radius:16px;margin-bottom:12px;
  background:var(--surface);border:1px solid var(--border);transition:transform .3s var(--ease),border-color .3s;animation:fadeUp .5s ease both;
}
.history-row:hover{transform:translateX(6px);border-color:var(--border-strong)}
.history-month{font-weight:800;color:var(--secondary);font-size:13px;min-width:96px;letter-spacing:1px}
.history-title{font-weight:800;flex:1}
.history-artist{color:var(--muted);font-size:13.5px;min-width:90px}
.history-votes{color:var(--amber);font-weight:800;font-size:14px}

/* ---------------- 规则页 ------------------ */
.rules-wrap{max-width:820px;margin:0 auto}
.rule-card{
  display:flex;gap:22px;padding:26px 26px;border-radius:22px;margin-bottom:18px;position:relative;overflow:hidden;
  background:var(--surface);border:1px solid var(--border);transition:transform .3s var(--ease),border-color .3s;animation:fadeUp .5s ease both;
}
.rule-card:hover{transform:translateY(-4px);border-color:var(--border-strong)}
.rule-card::after{content:"";position:absolute;right:-30px;top:-30px;width:110px;height:110px;border-radius:50%;background:radial-gradient(circle,rgba(139,92,246,.16),transparent 70%);pointer-events:none}
.rule-num{
  flex-shrink:0;width:52px;height:52px;border-radius:16px;display:grid;place-items:center;font-size:20px;font-weight:900;color:#fff;
  background:var(--grad);box-shadow:0 6px 20px rgba(139,92,246,.4);
}
.rule-num.gold{background:var(--grad-gold);box-shadow:0 6px 20px rgba(251,191,36,.4)}
.rule-num.cyan{background:linear-gradient(135deg,#06b6d4,#3b82f6);box-shadow:0 6px 20px rgba(6,182,212,.4)}
.rule-title{font-size:18px;font-weight:800;margin-bottom:8px;letter-spacing:.4px}
.rule-text{color:#cbd5e1;font-size:14.5px;line-height:1.85}
.rule-text b{color:#f5f3ff}
.rule-text ul{padding-left:18px;margin-top:8px;display:grid;gap:6px}
.rule-text li::marker{color:var(--secondary)}
.highlight-box{
  margin-top:28px;padding:24px 26px;border-radius:20px;text-align:center;
  background:linear-gradient(135deg,rgba(139,92,246,.14),rgba(6,182,212,.12));border:1px solid var(--border-strong);
  animation:fadeUp .6s .2s ease both;
}
.highlight-box .hb-title{font-size:20px;font-weight:900;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.highlight-box p{color:var(--muted);font-size:14px;margin:8px 0 18px}

/* ---------------- 页脚 ------------------ */
.footer{border-top:1px solid var(--border);background:rgba(8,8,18,.6);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);padding:34px 0}
.footer-inner{width:min(1120px,92%);margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer-brand{display:flex;align-items:center;gap:9px;font-weight:800}
.footer-brand .brand-mark{width:28px;height:28px;font-size:13px;border-radius:9px}
.footer-copy{color:var(--muted);font-size:13px}
.footer-links{display:flex;gap:18px}
.footer-links a{color:var(--muted);font-size:13.5px;transition:color .25s}
.footer-links a:hover{color:#fff}

/* ---------------- Toast ------------------ */
.toast{
  position:fixed;left:50%;bottom:30px;transform:translate(-50%,140%);z-index:300;display:flex;align-items:center;gap:10px;
  padding:14px 24px;border-radius:999px;font-size:14.5px;font-weight:700;color:#fff;max-width:min(440px,calc(100% - 40px));
  background:rgba(14,14,28,.92);border:1px solid var(--border-strong);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:0 16px 44px rgba(0,0,0,.55);transition:transform .45s var(--ease);z-index:400;
}
.toast.show{transform:translate(-50%,0)}
.toast .t-ico{flex-shrink:0}
.toast.ok .t-ico{color:var(--green)}
.toast.err .t-ico{color:var(--red)}
.toast.info .t-ico{color:#67e8f9}

/* ---------------- 空状态 / 杂项 ------------------ */
.empty{text-align:center;color:var(--muted);padding:60px 0}
.empty .big{font-size:52px;display:block;margin-bottom:12px;filter:drop-shadow(0 6px 18px rgba(139,92,246,.4))}
.skeleton{background:linear-gradient(100deg,var(--surface) 30%,var(--surface-2) 50%,var(--surface) 70%);background-size:200% 100%;animation:shimmer 1.4s infinite;border-radius:16px}
@keyframes shimmer{to{background-position:-200% 0}}

/* ---------------- 响应式 ------------------ */
@media(max-width:900px){
  .detail-layout{grid-template-columns:1fr}
  .detail-cover-wrap{position:static}
  .detail-cover{aspect-ratio:auto;height:300px;font-size:90px}
  .podium{grid-template-columns:1fr;max-width:420px}
  .podium-1{order:-1}
}
@media(max-width:720px){
  .nav-toggle{display:flex}
  .nav-links{
    position:absolute;top:64px;left:0;right:0;flex-direction:column;gap:4px;padding:14px 20px 18px;
    background:rgba(8,8,18,.96);border-bottom:1px solid var(--border);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
    transform:translateY(-8px);opacity:0;pointer-events:none;transition:all .3s var(--ease);
  }
  .nav-links.open{transform:none;opacity:1;pointer-events:auto}
  .nav-links a{width:100%;text-align:center;padding:12px}
  .stats{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .hero{padding-top:46px}
  .song-grid{grid-template-columns:1fr}
  .player-dock{flex-wrap:wrap;gap:10px}
  .player-progress{order:4;width:100%;flex-basis:100%}
  .song-cover{height:170px}
  .rule-card{flex-direction:column;gap:14px}
  .rule-num{width:44px;height:44px;font-size:17px}
}
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001s!important;animation-iteration-count:1!important;transition-duration:.001s!important}
  html{scroll-behavior:auto}
}