:root{
  --bg:#f4f4f9;--surface:#fff;--surface-2:#f7f7fb;--surface-3:#ececf4;
  --text:#181727;--muted:#757386;--line:rgba(32,29,62,.1);--accent:#6558f5;
  --accent-2:#9e5cf6;--accent-soft:rgba(101,88,245,.12);--success:#22a679;
  --warning:#ec9a2c;--danger:#de4e72;--shadow:0 22px 60px rgba(41,34,88,.11);
  --sidebar:280px;--dock:92px;--radius:24px;
}
[data-theme="dark"]{
  --bg:#11101d;--surface:#191827;--surface-2:#211f31;--surface-3:#2a283b;
  --text:#f7f6fc;--muted:#a6a2b6;--line:rgba(255,255,255,.09);
  --accent:#8a7dff;--accent-2:#c169ff;--accent-soft:rgba(138,125,255,.16);
  --shadow:0 22px 60px rgba(0,0,0,.28);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,"SF Pro Display","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;overflow:hidden}
button,input,select{font:inherit;color:inherit}
button{cursor:pointer}
.app-shell{display:grid;grid-template-columns:var(--sidebar) 1fr;height:100vh;padding-bottom:var(--dock)}
.sidebar{position:relative;background:var(--surface);border-right:1px solid var(--line);padding:24px 18px 18px;display:flex;flex-direction:column;overflow:hidden;z-index:40}
.brand{display:flex;align-items:center;gap:12px;padding:0 8px 22px}
.brand-mark{width:48px;height:48px;border-radius:16px;background:linear-gradient(145deg,#6d60ff,#b45cf1);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:900;box-shadow:0 12px 30px rgba(101,88,245,.34);transform:rotate(-3deg)}
.brand-mark span{font-size:18px}.brand-mark small{font-size:11px;align-self:flex-end;margin:0 0 9px 1px}
.brand strong{display:block;font-size:17px}.brand>div:last-child span{display:block;color:var(--muted);font-size:11px;margin-top:3px;letter-spacing:.05em}
.primary-nav{display:grid;gap:7px}
.nav-item{border:0;background:transparent;border-radius:14px;padding:11px 13px;text-align:left;display:flex;gap:12px;align-items:center;font-weight:700;color:var(--muted)}
.nav-item span{font-size:18px;width:22px;text-align:center}
.nav-item:hover,.nav-item.active{background:var(--accent-soft);color:var(--accent)}
.side-section{margin-top:22px;min-height:0}
.side-songs{display:flex;flex:1;flex-direction:column;overflow:hidden}
.side-title{display:flex;justify-content:space-between;align-items:center;padding:0 9px 9px;text-transform:uppercase;font-size:11px;letter-spacing:.08em;color:var(--muted);font-weight:800}
.side-title small{background:var(--surface-3);padding:2px 7px;border-radius:20px}
.unit-nav{display:grid;grid-template-columns:1fr 1fr;gap:7px}
.unit-button{border:1px solid transparent;background:var(--surface-2);border-radius:13px;padding:9px 8px;text-align:left;font-size:12px;display:flex;align-items:center;gap:6px;color:var(--muted)}
.unit-button:hover,.unit-button.active{border-color:var(--accent);color:var(--text);background:var(--accent-soft)}
.song-nav{overflow:auto;padding-right:4px;scrollbar-width:thin}
.song-link{width:100%;border:0;background:transparent;border-radius:12px;padding:8px 9px;display:grid;grid-template-columns:28px 1fr 8px;gap:8px;align-items:center;text-align:left;color:var(--muted);font-size:12px}
.song-link:hover,.song-link.active{background:var(--surface-2);color:var(--text)}
.song-link b{font-size:10px;color:var(--accent);font-variant-numeric:tabular-nums}
.song-link i{width:7px;height:7px;border-radius:50%;background:var(--surface-3)}
.song-link.bound i{background:var(--success);box-shadow:0 0 0 4px rgba(34,166,121,.11)}
.side-tip{margin-top:14px;background:var(--surface-2);border:1px solid var(--line);border-radius:15px;padding:11px;display:flex;gap:10px;align-items:center}
.side-tip strong,.side-tip small{display:block}.side-tip strong{font-size:11px}.side-tip small{font-size:10px;color:var(--muted);margin-top:3px}
.pulse-dot{width:9px;height:9px;border-radius:50%;background:var(--success);box-shadow:0 0 0 5px rgba(34,166,121,.12)}
.sidebar-close{display:none;position:absolute;right:14px;top:14px}
.sidebar-backdrop{display:none}
.main{min-width:0;height:100%;overflow:hidden}
.topbar{height:78px;padding:15px 28px;display:flex;align-items:center;gap:14px;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:blur(18px);position:relative;z-index:25}
.menu-button{display:none}
.icon-button{width:44px;height:44px;border:1px solid var(--line);background:var(--surface);border-radius:14px;display:grid;place-items:center;font-size:20px}
.global-search{height:48px;max-width:680px;flex:1;border:1px solid var(--line);background:var(--surface);border-radius:16px;display:flex;align-items:center;padding:0 14px;gap:10px;box-shadow:0 8px 24px rgba(42,35,87,.04)}
.global-search span{font-size:24px;color:var(--muted);transform:rotate(-15deg)}
.global-search input{border:0;outline:0;background:transparent;flex:1;min-width:0;font-size:14px}
.global-search kbd{border:0;background:var(--surface-3);border-radius:7px;padding:4px 7px;font-size:10px;color:var(--muted);cursor:pointer}
.bind-button{height:48px;border:0;border-radius:15px;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;padding:0 16px;display:flex;gap:8px;align-items:center;box-shadow:0 11px 28px rgba(101,88,245,.28)}
.bind-button small{background:rgba(255,255,255,.18);padding:3px 7px;border-radius:20px;font-size:10px}
.content{height:calc(100vh - 78px - var(--dock));overflow:auto;padding:28px;scrollbar-width:thin}
.page{max-width:1440px;margin:0 auto}
.hero{min-height:240px;border-radius:32px;padding:34px;background:
radial-gradient(circle at 77% 20%,rgba(255,255,255,.25),transparent 24%),
linear-gradient(135deg,#28235c 0%,#6355e9 48%,#b25fe6 100%);color:#fff;position:relative;overflow:hidden;box-shadow:var(--shadow);display:grid;grid-template-columns:1.3fr .7fr;align-items:center}
.hero:before,.hero:after{content:"";position:absolute;border:1px solid rgba(255,255,255,.15);border-radius:50%}
.hero:before{width:320px;height:320px;right:-70px;top:-165px}.hero:after{width:210px;height:210px;right:150px;bottom:-160px}
.hero-copy{position:relative;z-index:2;max-width:660px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;text-transform:uppercase;letter-spacing:.12em;font-size:11px;font-weight:800;opacity:.78}
.hero h1{font-size:clamp(30px,4vw,56px);line-height:1.05;margin:15px 0 13px;letter-spacing:-.03em}
.hero p{margin:0;line-height:1.75;opacity:.82;max-width:560px}
.hero-actions{display:flex;gap:10px;margin-top:22px;flex-wrap:wrap}
.hero-button{border:0;border-radius:14px;padding:12px 18px;font-weight:800}
.hero-button.primary{background:#fff;color:#352e85}.hero-button.secondary{background:rgba(255,255,255,.13);color:#fff;border:1px solid rgba(255,255,255,.19)}
.hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:12px;position:relative;z-index:2}
.hero-stat{padding:19px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.15);border-radius:20px;backdrop-filter:blur(10px)}
.hero-stat b{display:block;font-size:28px}.hero-stat span{font-size:11px;opacity:.72}
.section-heading{display:flex;align-items:end;justify-content:space-between;margin:32px 2px 15px;gap:16px}
.section-heading h2{margin:0;font-size:21px}.section-heading p{margin:5px 0 0;color:var(--muted);font-size:12px}
.view-actions{display:flex;gap:8px}
.pill-button{border:1px solid var(--line);background:var(--surface);border-radius:12px;padding:9px 12px;color:var(--muted);font-size:12px}
.pill-button.active,.pill-button:hover{color:var(--accent);border-color:var(--accent);background:var(--accent-soft)}
.filter-row{display:flex;gap:8px;overflow:auto;padding:2px 2px 7px;scrollbar-width:none}
.filter-chip{white-space:nowrap;border:1px solid var(--line);background:var(--surface);border-radius:999px;padding:9px 13px;color:var(--muted);font-size:12px}
.filter-chip.active{background:var(--text);color:var(--surface);border-color:var(--text)}
.song-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.song-card{--h:220;min-height:225px;background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:15px;box-shadow:0 10px 30px rgba(38,32,80,.04);transition:.23s ease;cursor:pointer;position:relative;overflow:hidden}
.song-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.card-cover{height:112px;border-radius:18px;background:
radial-gradient(circle at 76% 23%,hsla(var(--h),95%,80%,.75),transparent 24%),
linear-gradient(135deg,hsl(var(--h),50%,28%),hsl(calc(var(--h) + 38),72%,61%));position:relative;overflow:hidden;color:#fff;padding:15px}
.card-cover:before{content:"";position:absolute;width:120px;height:120px;border:20px solid rgba(255,255,255,.12);border-radius:50%;right:-26px;bottom:-54px}
.card-cover b{font-size:32px;line-height:1;font-variant-numeric:tabular-nums}.card-cover span{display:block;font-size:10px;opacity:.72;margin-top:5px}
.card-play{position:absolute;right:12px;bottom:12px;width:40px;height:40px;border-radius:50%;border:0;background:#fff;color:#292353;font-size:15px;box-shadow:0 8px 20px rgba(0,0,0,.2)}
.card-body{padding:13px 3px 2px}.card-body h3{margin:0;font-size:16px}.card-body p{margin:6px 0 11px;color:var(--muted);font-size:11px}
.card-footer{display:flex;justify-content:space-between;align-items:center;font-size:10px;color:var(--muted)}
.mini-progress{height:5px;background:var(--surface-3);border-radius:10px;width:72px;overflow:hidden}.mini-progress i{display:block;height:100%;background:var(--accent);border-radius:10px}
.bound-badge{position:absolute;right:24px;top:24px;background:rgba(17,16,29,.56);color:#fff;border-radius:999px;padding:4px 7px;font-size:9px;backdrop-filter:blur(8px)}
.empty-state{padding:70px 20px;text-align:center;background:var(--surface);border:1px dashed var(--line);border-radius:24px}
.empty-state .empty-icon{font-size:44px}.empty-state h2{margin:14px 0 7px}.empty-state p{color:var(--muted);font-size:13px;line-height:1.7}
.search-summary{padding:18px 20px;background:var(--surface);border:1px solid var(--line);border-radius:20px;margin-bottom:16px;display:flex;align-items:center;justify-content:space-between}
.search-summary b{color:var(--accent)}
.search-results{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.word-result{border:1px solid var(--line);background:var(--surface);border-radius:17px;padding:15px;display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center;text-align:left}
.word-result:hover{border-color:var(--accent);background:var(--accent-soft)}
.word-result strong{display:block;font-size:17px}.word-result span{display:block;color:var(--muted);font-size:12px;margin-top:4px}.word-result small{color:var(--accent);font-size:10px}
.player-page{max-width:1500px}
.player-hero{--h:222;min-height:250px;border-radius:30px;background:
radial-gradient(circle at 76% 22%,hsla(var(--h),95%,82%,.65),transparent 21%),
linear-gradient(130deg,hsl(var(--h),48%,23%),hsl(calc(var(--h) + 35),68%,57%));color:#fff;padding:28px;display:grid;grid-template-columns:180px 1fr auto;align-items:center;gap:26px;position:relative;overflow:hidden;box-shadow:var(--shadow)}
.player-hero:after{content:"VOCAB";position:absolute;right:-10px;bottom:-34px;font-size:96px;font-weight:900;opacity:.06;letter-spacing:-.06em}
.big-cover{width:180px;height:180px;border-radius:29px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.19);display:flex;flex-direction:column;justify-content:space-between;padding:20px;position:relative;overflow:hidden;box-shadow:0 22px 40px rgba(0,0,0,.18)}
.big-cover:before{content:"";position:absolute;width:145px;height:145px;border:26px solid rgba(255,255,255,.09);border-radius:50%;right:-46px;bottom:-62px}
.big-cover b{font-size:52px;line-height:1}.big-cover span{font-size:11px;opacity:.7}.big-cover i{font-style:normal;font-size:24px;align-self:flex-end}
.player-title{position:relative;z-index:2}.player-title .eyebrow{opacity:.68}.player-title h1{font-size:clamp(31px,4vw,54px);margin:12px 0 10px}.player-title p{margin:0;opacity:.73;font-size:13px}.player-title .meta-row{display:flex;gap:9px;margin-top:17px;flex-wrap:wrap}.meta-tag{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.14);border-radius:999px;padding:6px 9px;font-size:10px}
.hero-progress{position:relative;z-index:2;min-width:170px;background:rgba(255,255,255,.11);border:1px solid rgba(255,255,255,.15);border-radius:21px;padding:18px}.hero-progress b{font-size:28px;display:block}.hero-progress span{font-size:10px;opacity:.7}.hero-progress .bar{height:6px;background:rgba(255,255,255,.15);border-radius:8px;margin-top:13px;overflow:hidden}.hero-progress i{display:block;height:100%;background:#fff;border-radius:8px}
.player-layout{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(300px,.6fr);gap:18px;margin-top:18px}
.lyrics-card,.study-card{background:var(--surface);border:1px solid var(--line);border-radius:25px;box-shadow:0 12px 38px rgba(39,31,86,.05)}
.lyrics-toolbar{position:sticky;top:0;z-index:8;background:color-mix(in srgb,var(--surface) 91%,transparent);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);padding:15px 18px;border-radius:25px 25px 0 0;display:flex;justify-content:space-between;align-items:center;gap:12px}
.group-tabs,.mode-tabs{display:flex;gap:6px;overflow:auto;scrollbar-width:none}
.tab{white-space:nowrap;border:0;background:var(--surface-2);border-radius:10px;padding:8px 11px;font-size:11px;color:var(--muted)}
.tab.active{background:var(--accent);color:#fff}
.lyrics-scroll{padding:14px 22px 90px;min-height:600px}
.lyric-section{padding:18px 0 5px;border-bottom:1px solid var(--line)}
.lyric-section:last-child{border:0}
.section-label{font-size:10px;color:var(--accent);font-weight:900;letter-spacing:.12em;text-transform:uppercase;margin-bottom:10px;display:flex;align-items:center;gap:8px}
.section-label:after{content:"";height:1px;background:var(--line);flex:1}
.lyric-line{border:0;background:transparent;width:100%;text-align:left;border-radius:14px;padding:8px 12px;margin:1px 0;transition:.2s ease;display:block}
.lyric-line:hover{background:var(--surface-2)}
.lyric-line.active{background:var(--accent-soft);box-shadow:inset 3px 0 0 var(--accent);transform:translateX(3px)}
.line-pair{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:14px;align-items:baseline}
.line-en{font-weight:760;font-size:17px;letter-spacing:.01em}.line-zh{color:var(--muted);font-size:13px}
.lyric-line.active .line-en{color:var(--accent)}
.simple-line{font-size:15px;line-height:1.55}.lyric-line.lang-zh .simple-line{color:var(--muted)}.lyric-line.lang-en .simple-line{font-weight:720}
.mode-english .line-zh,.mode-english .lang-zh{display:none}
.mode-chinese .line-en,.mode-chinese .lang-en{display:none}
.mode-quiz .line-en{filter:blur(7px);user-select:none;transition:.2s}.mode-quiz .lyric-line.revealed .line-en{filter:none}.mode-quiz .line-en:after{content:"点击显示";font-size:9px;color:var(--accent);margin-left:8px}
.study-card{padding:18px;height:max-content;position:sticky;top:0}
.study-card h3{margin:0 0 5px;font-size:17px}.study-card>p{margin:0 0 15px;color:var(--muted);font-size:11px;line-height:1.6}
.word-stack{display:grid;gap:8px}
.word-card{border:1px solid var(--line);background:var(--surface-2);border-radius:15px;padding:11px 12px;display:grid;grid-template-columns:28px 1fr auto;gap:10px;align-items:center;text-align:left;width:100%}
.word-card:hover{border-color:var(--accent)}
.word-index{width:28px;height:28px;border-radius:9px;background:var(--surface);display:grid;place-items:center;font-size:10px;color:var(--muted);font-weight:800}
.word-card strong{display:block;font-size:14px}.word-card small{display:block;color:var(--muted);font-size:10px;margin-top:3px}
.word-status{width:25px;height:25px;border-radius:8px;border:0;background:var(--surface);color:var(--muted)}
.word-card.learning{border-color:rgba(222,78,114,.5);background:rgba(222,78,114,.07)}.word-card.learning .word-status{color:var(--danger)}
.word-card.mastered{border-color:rgba(34,166,121,.4);background:rgba(34,166,121,.07)}.word-card.mastered .word-status{color:var(--success)}
.study-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:14px}.study-actions button{border:1px solid var(--line);background:var(--surface);border-radius:12px;padding:10px;font-size:11px}.study-actions button:hover{border-color:var(--accent);color:var(--accent)}
.player-dock{height:var(--dock);position:fixed;left:0;right:0;bottom:0;z-index:55;background:color-mix(in srgb,var(--surface) 92%,transparent);backdrop-filter:blur(22px);border-top:1px solid var(--line);display:grid;grid-template-columns:minmax(250px,1fr) minmax(340px,1.3fr) minmax(250px,1fr);align-items:center;padding:11px 24px;gap:20px}
.dock-song{display:grid;grid-template-columns:54px minmax(0,1fr) 34px;align-items:center;gap:11px}.mini-cover{width:54px;height:54px;border-radius:15px;background:linear-gradient(145deg,#28235c,#8a74ff);color:#fff;display:grid;place-items:center;font-weight:900}.dock-meta{min-width:0}.dock-meta strong,.dock-meta span{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.dock-meta strong{font-size:13px}.dock-meta span{font-size:10px;color:var(--muted);margin-top:4px}.mini-action{border:0;background:transparent;font-size:20px;color:var(--muted)}
.dock-center{min-width:0}.dock-controls{display:flex;justify-content:center;align-items:center;gap:12px}.dock-controls button{border:0;background:transparent;width:30px;height:30px;font-size:24px}.dock-controls .play-button{width:41px;height:41px;border-radius:50%;background:var(--text);color:var(--surface);font-size:13px;box-shadow:0 8px 20px rgba(30,27,56,.2)}
.progress-row{display:grid;grid-template-columns:34px 1fr 34px;align-items:center;gap:8px;margin-top:2px}.progress-row time{font-size:9px;color:var(--muted);font-variant-numeric:tabular-nums}.progress-row input{width:100%;accent-color:var(--accent)}
.dock-tools{display:flex;justify-content:flex-end;align-items:center;gap:8px}.dock-tools select,.tool-button{border:1px solid var(--line);background:var(--surface-2);height:36px;border-radius:11px;padding:0 10px;font-size:10px}.tool-button.active{background:var(--accent-soft);color:var(--accent);border-color:var(--accent)}
.modal-backdrop{position:fixed;inset:0;background:rgba(8,7,17,.55);backdrop-filter:blur(8px);z-index:90;display:none;place-items:center;padding:20px}.modal-backdrop.open{display:grid}.modal-card{width:min(540px,100%);background:var(--surface);border:1px solid var(--line);border-radius:28px;padding:29px;box-shadow:0 30px 90px rgba(0,0,0,.28);position:relative;text-align:center}.modal-card.compact{width:min(440px,100%)}.modal-close{position:absolute;right:16px;top:16px}.modal-icon{width:60px;height:60px;border-radius:20px;margin:0 auto 14px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;font-size:28px}.modal-card h2{margin:0 0 8px}.modal-card>p{color:var(--muted);font-size:13px;line-height:1.7;margin:0 auto 20px;max-width:440px}.modal-card code{background:var(--surface-3);padding:2px 5px;border-radius:5px;font-size:11px}
.audio-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}.audio-choice{border:1px solid var(--line);border-radius:17px;padding:17px;display:block;text-align:left;cursor:pointer}.audio-choice.primary{border-color:var(--accent);background:var(--accent-soft)}.audio-choice:hover{transform:translateY(-2px)}.audio-choice strong,.audio-choice span{display:block}.audio-choice strong{font-size:13px}.audio-choice span{font-size:10px;color:var(--muted);margin-top:5px;line-height:1.5}.match-summary{display:flex;justify-content:center;gap:22px;margin:17px 0 10px;font-size:11px;color:var(--muted)}.match-summary b{color:var(--text)}.modal-note{display:block;color:var(--muted);line-height:1.6}
.offset-controls{display:grid;grid-template-columns:1fr auto 1fr;gap:10px;align-items:center}.offset-controls button{border:1px solid var(--line);background:var(--surface-2);border-radius:12px;padding:11px;font-size:11px}.offset-controls strong{font-size:13px}.text-button{border:0;background:transparent;color:var(--accent);font-size:11px;margin-top:14px}
.toast{position:fixed;left:50%;bottom:calc(var(--dock) + 22px);transform:translate(-50%,20px);background:var(--text);color:var(--surface);border-radius:999px;padding:10px 16px;font-size:11px;z-index:120;opacity:0;pointer-events:none;transition:.25s}.toast.show{opacity:1;transform:translate(-50%,0)}
.review-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}
.review-card{background:var(--surface);border:1px solid var(--line);border-radius:19px;padding:18px;text-align:center;min-height:130px;display:flex;flex-direction:column;justify-content:center}
.review-card strong{font-size:20px}.review-card span{color:var(--muted);font-size:12px;margin-top:6px}.review-card button{margin-top:13px;border:0;border-radius:10px;padding:8px;background:var(--accent-soft);color:var(--accent);font-size:10px}
@media(max-width:1200px){
  .song-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .player-dock{grid-template-columns:minmax(220px,.8fr) minmax(320px,1.4fr) auto}
  .tool-button span{display:none}
}
@media(max-width:980px){
  :root{--sidebar:270px}
  .app-shell{display:block}
  .sidebar{position:fixed;left:0;top:0;bottom:var(--dock);width:var(--sidebar);transform:translateX(-105%);transition:.25s;box-shadow:var(--shadow)}
  .sidebar.open{transform:none}.sidebar-close{display:grid}
  .sidebar-backdrop{position:fixed;inset:0 0 var(--dock);background:rgba(0,0,0,.35);z-index:35}.sidebar-backdrop.open{display:block}
  .menu-button{display:grid}
  .player-layout{grid-template-columns:1fr}.study-card{position:relative}
  .player-hero{grid-template-columns:140px 1fr}.big-cover{width:140px;height:140px}.hero-progress{display:none}
  .song-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .review-grid{grid-template-columns:repeat(3,1fr)}
  .player-dock{grid-template-columns:minmax(180px,.8fr) minmax(320px,1.4fr)}.dock-tools{display:none}
}
@media(max-width:740px){
  :root{--dock:78px}
  .topbar{height:66px;padding:10px 13px;gap:8px}.theme-button{display:none}.bind-button{width:46px;padding:0;justify-content:center}.bind-button b,.bind-button small{display:none}
  .content{height:calc(100vh - 66px - var(--dock));padding:14px}
  .hero{grid-template-columns:1fr;padding:25px;min-height:310px}.hero-stats{grid-template-columns:repeat(4,1fr);gap:6px}.hero-stat{padding:12px 7px}.hero-stat b{font-size:19px}.hero-stat span{font-size:8px}.hero h1{font-size:37px}
  .song-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.song-card{padding:10px;min-height:205px}.card-cover{height:105px}.card-body h3{font-size:14px}
  .search-results{grid-template-columns:1fr}
  .player-hero{grid-template-columns:90px 1fr;gap:15px;padding:18px;border-radius:23px;min-height:165px}.big-cover{width:90px;height:90px;border-radius:20px;padding:12px}.big-cover b{font-size:32px}.big-cover i{font-size:16px}.player-title h1{font-size:27px;margin:8px 0}.player-title .meta-row{margin-top:10px}.player-title p{font-size:10px}
  .player-layout{margin-top:10px}.lyrics-toolbar{display:block;padding:11px}.mode-tabs{margin-top:8px}.lyrics-scroll{padding:10px 10px 80px;min-height:500px}.lyric-section{padding:14px 0}.line-pair{grid-template-columns:1fr;gap:2px}.line-en{font-size:16px}.line-zh{font-size:12px}.lyric-line{padding:8px 10px}
  .study-card{padding:15px}.word-stack{grid-template-columns:1fr 1fr}.word-card{grid-template-columns:25px 1fr;padding:9px}.word-status{display:none}.word-card strong{font-size:12px}.word-card small{font-size:9px}
  .player-dock{padding:8px 12px;grid-template-columns:minmax(0,.8fr) minmax(185px,1.2fr);gap:8px}.mini-cover{width:44px;height:44px;border-radius:12px}.dock-song{grid-template-columns:44px minmax(0,1fr)}.mini-action{display:none}.dock-meta strong{font-size:11px}.dock-meta span{font-size:9px}.progress-row{grid-template-columns:1fr;margin-top:0}.progress-row time{display:none}.dock-controls{gap:5px}.dock-controls .play-button{width:37px;height:37px}
  .audio-actions{grid-template-columns:1fr}.modal-card{padding:25px 18px}.review-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:430px){
  .song-grid{grid-template-columns:1fr 1fr}.card-cover{height:92px}.song-card{min-height:188px}.card-footer .mini-progress{display:none}
  .hero-stats{grid-template-columns:1fr 1fr}.hero{min-height:360px}
  .player-dock{grid-template-columns:minmax(0,.9fr) minmax(160px,1.1fr)}
}