/* =========================================================
   知吉知音 ZHIJI MUSIC — Apple 风格 · 亮/暗双主题
   ========================================================= */
:root, html[data-theme="light"]{
  --bg:#ffffff;
  --bg2:#f5f5f7;
  --card:#ffffff;
  --panel:#f5f5f7;
  --panel-strong:#ebebef;
  --line:rgba(0,0,0,.08);
  --line-strong:rgba(0,0,0,.12);
  --text:#1d1d1f;
  --text-2:#424245;
  --text-dim:#86868b;
  --blue:#0071e3;
  --blue-h:#0077ed;
  --blue-text:#0066cc;
  --green:#34c759;
  --red:#e3003a;
  --grad:linear-gradient(180deg,#147cf9,#0068e5);
  --radius:18px;
  --maxw:1100px;
  --shadow:0 4px 24px rgba(0,0,0,.06);
  --topbar-bg:rgba(255,255,255,.78);
  --player-bg:rgba(255,255,255,.85);
  --toast-bg:rgba(255,255,255,.95);
  --input-bg:#ffffff;
  --hover:rgba(0,0,0,.05);
}
html[data-theme="dark"]{
  --bg:#000000;
  --bg2:#1c1c1e;
  --card:#1c1c1e;
  --panel:#1c1c1e;
  --panel-strong:#2c2c2e;
  --line:rgba(255,255,255,.1);
  --line-strong:rgba(255,255,255,.16);
  --text:#f5f5f7;
  --text-2:#d1d1d6;
  --text-dim:#98989d;
  --blue:#0a84ff;
  --blue-h:#2f95ff;
  --blue-text:#64a8ff;
  --green:#30d158;
  --red:#ff453a;
  --grad:linear-gradient(180deg,#0a84ff,#0068e5);
  --shadow:0 4px 24px rgba(0,0,0,.5);
  --topbar-bg:rgba(10,10,10,.75);
  --player-bg:rgba(20,20,22,.85);
  --toast-bg:rgba(44,44,46,.95);
  --input-bg:#1c1c1e;
  --hover:rgba(255,255,255,.08);
  color-scheme:dark;
}
*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","SF Pro Text","PingFang SC","Helvetica Neue","Microsoft YaHei",sans-serif;
  line-height:1.65;min-height:100vh;overflow-x:hidden;
  padding-bottom:96px;
  -webkit-font-smoothing:antialiased;
  transition:background .3s,color .3s;
}
a{color:inherit;text-decoration:none}
img{max-width:100%}
button{font-family:inherit;cursor:pointer}
input,textarea,select{font-family:inherit}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.bg-aurora{display:none}

/* ===== 顶栏 ===== */
.topbar{position:sticky;top:0;z-index:50;backdrop-filter:saturate(180%) blur(20px);background:var(--topbar-bg);border-bottom:1px solid var(--line)}
.topbar-in{display:flex;align-items:center;gap:18px;height:52px}
.logo{display:flex;align-items:center;gap:9px;flex-shrink:0}
.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:8px;background:var(--text);color:var(--bg);font-weight:700;font-size:16px}
html[data-theme="dark"] .logo-mark{background:#f5f5f7;color:#000}
.logo-text{font-weight:600;font-size:17px;line-height:1.1;display:flex;flex-direction:column;letter-spacing:-.01em}
.logo-text small{font-size:9px;letter-spacing:.18em;color:var(--text-dim);font-weight:500}
.nav{display:flex;gap:2px;flex:1}
.nav a{padding:6px 12px;border-radius:980px;color:var(--text-2);font-size:13.5px;transition:.2s}
.nav a:hover{color:var(--text);background:var(--hover)}
.nav a.active{color:var(--text);font-weight:600}
.topbar-right{display:flex;align-items:center;gap:8px;margin-left:auto}
.avatar-chip{width:28px;height:28px;border-radius:50%;object-fit:cover;border:1px solid var(--line)}
.credit-chip{padding:4px 11px;border-radius:980px;background:var(--bg2);font-size:12.5px;font-weight:600;color:var(--text)}
.theme-toggle{width:32px;height:32px;border-radius:50%;border:none;background:var(--bg2);color:var(--text);font-size:15px;display:flex;align-items:center;justify-content:center;transition:.2s;flex-shrink:0}
.theme-toggle:hover{background:var(--panel-strong)}
.nav-toggle{display:none;width:36px;height:36px;border-radius:50%;border:none;background:var(--hover);position:relative;flex-shrink:0}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:10px;width:16px;height:1.5px;background:var(--text);border-radius:2px}
.nav-toggle span{top:17px}.nav-toggle span::before{top:-5px}.nav-toggle span::after{top:5px}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:11px 24px;border-radius:980px;border:none;font-size:15px;font-weight:500;transition:.2s;white-space:nowrap}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-h)}
.btn-ghost{background:var(--bg2);color:var(--text)}
.btn-ghost:hover{background:var(--panel-strong)}
.btn-sm{padding:6px 14px;font-size:13px;border-radius:980px}
.btn-lg{padding:15px 34px;font-size:17px}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none!important}
.btn-block{width:100%}

/* ===== Hero ===== */
.hero{padding:96px 0 48px;text-align:center}
.hero-tag{display:inline-flex;align-items:center;gap:7px;padding:6px 16px;border-radius:980px;background:var(--bg2);font-size:13px;color:var(--blue-text);margin-bottom:24px}
.hero h1{font-size:clamp(34px,6.5vw,64px);font-weight:700;line-height:1.15;letter-spacing:-.015em;color:var(--text)}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,#0090f7,#0066cc);-webkit-background-clip:text;background-clip:text;color:transparent}
html[data-theme="dark"] .hero h1 em{background:linear-gradient(90deg,#2f95ff,#64a8ff);-webkit-background-clip:text;background-clip:text}
.hero p.sub{max-width:640px;margin:20px auto 32px;color:var(--text-dim);font-size:clamp(16px,2.4vw,21px);font-weight:400;line-height:1.5}
.hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero-stats{display:flex;justify-content:center;gap:clamp(24px,6vw,64px);margin-top:56px;flex-wrap:wrap}
.hero-stats div b{display:block;font-size:clamp(22px,3.5vw,32px);font-weight:700;color:var(--text);letter-spacing:-.01em}
.hero-stats div span{font-size:13px;color:var(--text-dim)}

/* ===== 区块 ===== */
.section{padding:72px 0 12px}
.sec-head{display:flex;align-items:end;justify-content:space-between;margin-bottom:28px;gap:12px}
.sec-head h2{font-size:clamp(26px,4vw,40px);font-weight:700;letter-spacing:-.015em}
.sec-head h2 em{font-style:normal;color:var(--blue-text)}
.sec-head .more{color:var(--blue-text);font-size:14.5px;flex-shrink:0}
.sec-head .more:hover{text-decoration:underline}
.sec-head p{color:var(--text-dim);font-size:15px;margin-top:6px}

/* 轮播歌单 */
.rail{display:grid;grid-auto-flow:column;grid-auto-columns:clamp(200px,32vw,250px);gap:16px;overflow-x:auto;padding:4px 2px 16px;scroll-snap-type:x mandatory;scrollbar-width:none}
.rail::-webkit-scrollbar{display:none}
.rail>*{scroll-snap-align:start}

/* 作品卡片 */
.song-card{background:var(--bg2);border:none;border-radius:18px;overflow:hidden;transition:.3s;cursor:pointer;position:relative}
.song-card:hover{transform:scale(1.02);box-shadow:var(--shadow)}
.sc-cover{position:relative;aspect-ratio:1/1;display:block;border-radius:18px 18px 0 0;overflow:hidden}
.sc-cover img{width:100%;height:100%;object-fit:cover;display:block}
.sc-play{position:absolute;right:10px;bottom:10px;width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border:none;color:#1d1d1f;font-size:14px;display:flex;align-items:center;justify-content:center;opacity:0;transform:translateY(6px);transition:.25s;box-shadow:0 2px 12px rgba(0,0,0,.15)}
html[data-theme="dark"] .sc-play{background:rgba(60,60,64,.92);color:#fff}
.song-card:hover .sc-play,.song-card.playing .sc-play{opacity:1;transform:none}
.sc-body{padding:14px 16px 16px}
.sc-body b{display:block;font-size:15px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sc-meta{display:flex;justify-content:space-between;color:var(--text-dim);font-size:12.5px;margin-top:4px}
.sc-status{position:absolute;top:10px;left:10px;padding:3px 10px;border-radius:980px;font-size:11.5px;background:rgba(255,255,255,.9);backdrop-filter:blur(6px)}
html[data-theme="dark"] .sc-status{background:rgba(40,40,42,.9)}
.sc-status.gen{color:#b25000;background:#fff3e0}
.sc-status.ok{color:#248a3d;background:#e8f5e9}
.sc-status.fail{color:#d70015;background:#ffe5e5}
html[data-theme="dark"] .sc-status.gen{color:#ffb340;background:rgba(255,179,64,.12)}
html[data-theme="dark"] .sc-status.ok{color:#30d158;background:rgba(48,209,88,.12)}
html[data-theme="dark"] .sc-status.fail{color:#ff6961;background:rgba(255,105,97,.12)}

/* 功能五卡 */
.feat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px}
.feat-card{background:var(--bg2);border:none;border-radius:18px;padding:30px 24px;transition:.3s}
.feat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.feat-card .ic{width:44px;height:44px;border-radius:12px;background:var(--card);display:flex;align-items:center;justify-content:center;font-size:20px;margin-bottom:16px;box-shadow:0 1px 4px rgba(0,0,0,.06)}
.feat-card h3{font-size:17px;font-weight:600;margin-bottom:7px}
.feat-card p{font-size:13.5px;color:var(--text-dim);line-height:1.55}

/* 四步流程 */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;counter-reset:step}
.step{background:var(--bg2);border:none;border-radius:18px;padding:28px 24px;position:relative}
.step::before{counter-increment:step;content:counter(step);font-size:13px;font-weight:700;display:inline-flex;width:26px;height:26px;border-radius:50%;background:var(--text);color:var(--bg);align-items:center;justify-content:center;margin-bottom:12px}
html[data-theme="dark"] .step::before{background:#f5f5f7;color:#000}
.step .ic{font-size:22px;margin-bottom:10px}
.step h3{font-size:16px;font-weight:600;margin-bottom:6px}
.step p{font-size:13.5px;color:var(--text-dim)}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:840px;margin:0 auto}
.faq-item{background:var(--bg2);border:none;border-radius:16px;overflow:hidden}
.faq-item summary{padding:18px 22px;font-weight:600;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:15px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--text-dim);font-size:20px;transition:.2s}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .ans{padding:0 22px 18px;color:var(--text-2);font-size:14.5px}

/* ===== 创作页 ===== */
.create-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:20px;padding:36px 0 48px;align-items:start}
.panel{background:var(--bg2);border:none;border-radius:18px;padding:26px}
.panel+.panel{margin-top:18px}
.panel h3{font-size:17px;font-weight:600;margin-bottom:16px;display:flex;align-items:center;gap:9px}
.step-no{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%;background:var(--text);color:var(--bg);font-size:12.5px;font-weight:700;flex-shrink:0}
html[data-theme="dark"] .step-no{background:#f5f5f7;color:#000}
.mode-tabs{display:flex;gap:8px;margin-bottom:16px}
.mode-tabs button{flex:1;padding:10px;border-radius:12px;border:none;background:var(--hover);color:var(--text-2);font-size:14px;font-weight:500;transition:.2s}
.mode-tabs button.on{background:var(--text);color:var(--bg)}
.field{margin-bottom:18px}
.field label{display:flex;justify-content:space-between;font-size:13.5px;color:var(--text-dim);margin-bottom:8px}
.field label b{color:var(--text);font-weight:600}
.field input[type=text],.field textarea,.field select{width:100%;background:var(--input-bg);border:1px solid var(--line-strong);border-radius:12px;padding:12px 15px;color:var(--text);font-size:15px;transition:.2s;outline:none}
.field textarea{min-height:130px;resize:vertical;line-height:1.8}
.field input:focus,.field textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3.5px rgba(0,113,227,.18)}
.field .hint{font-size:12.5px;color:var(--text-dim);margin-top:6px}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag{padding:7px 15px;border-radius:980px;border:none;background:var(--hover);font-size:13.5px;color:var(--text);cursor:pointer;transition:.2s;user-select:none}
.tag:hover{background:var(--panel-strong)}
.tag.on{background:var(--text);color:var(--bg)}
html[data-theme="dark"] .tag.on{background:#f5f5f7;color:#000}
.switch-row{display:flex;align-items:center;justify-content:space-between;padding:10px 0}
.switch{position:relative;width:46px;height:27px;flex-shrink:0}
.switch input{opacity:0;width:0;height:0}
.switch i{position:absolute;inset:0;border-radius:980px;background:#d1d1d6;transition:.25s;cursor:pointer}
html[data-theme="dark"] .switch i{background:#48484a}
.switch i::after{content:"";position:absolute;top:2.5px;left:2.5px;width:22px;height:22px;border-radius:50%;background:#fff;transition:.25s;box-shadow:0 1px 3px rgba(0,0,0,.25)}
.switch input:checked+i{background:var(--green)}
.switch input:checked+i::after{transform:translateX(19px)}
.lyrics-helper{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}

/* 生成侧栏 */
.gen-side .cost{display:flex;align-items:center;justify-content:space-between;background:var(--card);border:none;border-radius:12px;padding:13px 16px;font-size:14px;margin-bottom:12px}
.gen-side .cost b{color:var(--blue-text)}
.gen-note{font-size:12.5px;color:var(--text-dim);line-height:1.9;margin-top:14px}
.gen-note a{color:var(--blue-text)}
.gen-note a:hover{text-decoration:underline}
.gen-status{display:none;margin-top:14px;padding:14px 16px;border-radius:12px;background:rgba(0,113,227,.1);color:var(--blue-text);font-size:13.5px}
.gen-status.show{display:block;animation:pulse 1.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.65}}

/* ===== 奖励卡片（签到/邀请） ===== */
.reward-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:26px}
.reward-card h3{font-size:16px;margin-bottom:8px}
.reward-ic{font-size:18px}
.reward-desc{font-size:13.5px;color:var(--text-dim);margin-bottom:16px}
.reward-desc b{color:var(--blue-text)}
.invite-row{display:flex;gap:8px}
.invite-row input{flex:1;min-width:0;background:var(--input-bg);border:1px solid var(--line-strong);border-radius:10px;padding:9px 12px;color:var(--text);font-size:12.5px;outline:none}
.invite-stats{margin-top:12px;font-size:13px;color:var(--text-dim)}
.invite-stats b{color:var(--text)}

/* ===== 列表/详情 ===== */
.grid-songs{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;padding:12px 0 48px}
.list-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:36px 0 10px;flex-wrap:wrap}
.list-toolbar h1{font-size:clamp(26px,4vw,38px);font-weight:700;letter-spacing:-.015em}
.list-toolbar .sub{color:var(--text-dim);font-size:14px;margin-top:4px}
.search-box{display:flex;gap:8px}
.search-box input{background:var(--bg2);border:none;border-radius:980px;padding:10px 18px;color:var(--text);outline:none;font-size:14px;width:min(240px,55vw)}
.search-box input:focus{background:var(--panel-strong)}

.song-detail{display:grid;grid-template-columns:minmax(280px,360px) 1fr;gap:32px;padding:40px 0 48px;align-items:start}
.sd-cover{border-radius:18px;overflow:hidden;aspect-ratio:1/1;position:relative;box-shadow:var(--shadow)}
.sd-cover img{width:100%;height:100%;object-fit:cover}
.sd-info h1{font-size:clamp(24px,3.5vw,34px);font-weight:700;letter-spacing:-.01em;margin-bottom:8px}
.sd-info .author{color:var(--text-dim);font-size:14px;margin-bottom:20px}
.sd-actions{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:22px}
.lyrics-box{background:var(--bg2);border:none;border-radius:16px;padding:22px 24px;font-size:14.5px;line-height:2.1;white-space:pre-wrap;color:var(--text)}
.sd-meta{display:flex;gap:20px;color:var(--text-dim);font-size:13px;margin:16px 0;flex-wrap:wrap}
.empty{padding:80px 20px;text-align:center;color:var(--text-dim)}
.empty .big{font-size:44px;margin-bottom:12px}
.empty a{color:var(--blue-text)}

/* ===== 登录注册（重设计） ===== */
.auth-wrap{max-width:410px;margin:48px auto 72px;padding:0 20px}
.auth-card{background:var(--card);border:1px solid var(--line);border-radius:24px;padding:40px 34px;box-shadow:0 12px 48px rgba(0,0,0,.08)}
html[data-theme="dark"] .auth-card{box-shadow:0 12px 48px rgba(0,0,0,.4)}
.auth-brand{display:flex;justify-content:center;margin-bottom:16px}
.auth-brand .logo-mark{width:44px;height:44px;font-size:22px;border-radius:12px}
.auth-card h1{font-size:26px;font-weight:700;margin-bottom:6px;text-align:center;letter-spacing:-.01em}
.auth-card .sub{text-align:center;color:var(--text-dim);font-size:14px;margin-bottom:26px;line-height:1.6}
.auth-card .sub .accent{color:var(--blue-text);font-weight:700}
.ref-banner{background:rgba(52,199,89,.1);color:var(--text);border-radius:12px;padding:11px 14px;font-size:13px;margin-bottom:18px;text-align:center}
.ref-banner b{color:var(--green)}
.auth-field{margin-bottom:16px}
.auth-field label{display:block;font-size:13px;font-weight:500;color:var(--text-dim);margin-bottom:6px}
.auth-field input{background:var(--input-bg);border:1px solid var(--line-strong);border-radius:12px;padding:13px 16px;color:var(--text);font-size:15.5px;outline:none;transition:.2s;width:100%}
.auth-field input:focus{border-color:var(--blue);box-shadow:0 0 0 3.5px rgba(0,113,227,.18)}
.auth-submit{margin-top:6px;height:50px;font-size:16px;font-weight:600}
.auth-divider{display:flex;align-items:center;gap:14px;margin:18px 0;color:var(--text-dim);font-size:12.5px}
.auth-divider::before,.auth-divider::after{content:"";flex:1;height:1px;background:var(--line)}
.btn-douyin{background:var(--card);border:1px solid rgba(254,44,85,.45);color:#fe2c55;font-weight:600;height:46px}
.btn-douyin:hover{background:rgba(254,44,85,.06)}
html[data-theme="dark"] .btn-douyin{background:rgba(254,44,85,.08)}
.auth-foot{text-align:center;margin-top:20px;font-size:13.5px;color:var(--text-dim);line-height:1.8}
.auth-foot a{color:var(--blue-text);font-weight:500}
.auth-foot a:hover{text-decoration:underline}

/* ===== 专栏页 ===== */
.topic-hero{padding:88px 0 36px;text-align:center}
.topic-hero .ic{width:60px;height:60px;margin:0 auto 20px;border-radius:15px;background:var(--text);display:flex;align-items:center;justify-content:center;font-size:27px}
html[data-theme="dark"] .topic-hero .ic{background:#f5f5f7}
.topic-hero h1{font-size:clamp(30px,5vw,48px);font-weight:700;letter-spacing:-.015em}
.topic-hero p{color:var(--text-dim);max-width:600px;margin:16px auto 28px;font-size:17px}
.prose{max-width:760px;margin:0 auto;padding-bottom:56px}
.prose h2{font-size:23px;font-weight:700;margin:40px 0 12px;letter-spacing:-.01em}
.prose p,.prose li{color:var(--text-2);font-size:15.5px}
.prose ol,.prose ul{padding-left:22px;display:grid;gap:6px;margin:10px 0}
.prose .callout{background:var(--bg2);border:none;border-radius:14px;padding:16px 20px;font-size:14.5px;margin:18px 0;color:var(--text-2)}
.prose .callout b{color:var(--blue-text)}
.prose a{color:var(--blue-text)}

/* ===== 后台 ===== */
.admin-layout{display:grid;grid-template-columns:200px 1fr;gap:20px;padding:28px 0 48px;align-items:start}
.admin-nav{display:grid;gap:6px;position:sticky;top:72px}
.admin-nav a{padding:11px 16px;border-radius:12px;color:var(--text-2);font-size:14.5px}
.admin-nav a.on{background:var(--text);color:var(--bg);font-weight:600}
html[data-theme="dark"] .admin-nav a.on{background:#f5f5f7;color:#000}
.table{width:100%;border-collapse:collapse;font-size:13.5px}
.table th{color:var(--text-dim);font-weight:500;text-align:left;padding:10px 12px;border-bottom:1px solid var(--line-strong);white-space:nowrap}
.table td{padding:12px;border-bottom:1px solid var(--line);vertical-align:middle}
.table tr:hover td{background:var(--hover)}
.badge{display:inline-block;padding:3px 10px;border-radius:980px;font-size:11.5px;font-weight:500}
.badge.ok{background:#e8f5e9;color:#248a3d}
.badge.gen{background:#fff3e0;color:#b25000}
.badge.fail{background:#ffe5e5;color:#d70015}
.badge.pend{background:var(--hover);color:var(--text-dim)}
html[data-theme="dark"] .badge.ok{background:rgba(48,209,88,.14);color:#30d158}
html[data-theme="dark"] .badge.gen{background:rgba(255,179,64,.14);color:#ffb340}
html[data-theme="dark"] .badge.fail{background:rgba(255,105,97,.14);color:#ff6961}
.stat-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin-bottom:24px}
.stat-cards div{background:var(--bg2);border:none;border-radius:16px;padding:20px}
.stat-cards b{font-size:28px;display:block;font-weight:700;letter-spacing:-.01em}
.stat-cards span{font-size:12.5px;color:var(--text-dim)}
.form-inline{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.form-inline label{font-size:13.5px;color:var(--text-dim)}
.form-inline input{background:var(--input-bg);border:1px solid var(--line-strong);border-radius:10px;padding:8px 12px;color:var(--text);font-size:13.5px;outline:none}
.form-inline input.wide{flex:1;min-width:220px}

/* ===== 播放器 ===== */
.player{position:fixed;left:0;right:0;bottom:0;z-index:60;backdrop-filter:saturate(180%) blur(20px);background:var(--player-bg);border-top:1px solid var(--line)}
.player-in{display:grid;grid-template-columns:46px minmax(0,1fr) auto minmax(80px,1fr) auto auto;align-items:center;gap:14px;height:74px;padding:0 20px}
.p-cover{width:46px;height:46px;border-radius:12px;background:var(--text);display:flex;align-items:center;justify-content:center;font-size:18px;overflow:hidden;flex-shrink:0}
html[data-theme="dark"] .p-cover{background:#2c2c2e}
.p-cover img{width:100%;height:100%;object-fit:cover}
.p-info{min-width:0}
.p-info b{display:block;font-size:14px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.p-info span{font-size:12px;color:var(--text-dim)}
.p-controls{display:flex;align-items:center;gap:6px}
.p-controls button{background:none;border:none;color:var(--text);font-size:15px;width:34px;height:34px;border-radius:50%}
.p-controls button:hover{background:var(--hover)}
.p-play{width:40px!important;height:40px!important;background:var(--text)!important;color:var(--bg)!important;font-size:14px!important}
html[data-theme="dark"] .p-play{background:#f5f5f7!important;color:#000!important}
.p-progress{height:4px;border-radius:980px;background:var(--line-strong);cursor:pointer;position:relative}
.p-progress i{position:absolute;left:0;top:0;bottom:0;border-radius:980px;background:var(--blue);width:0%}
.p-time{font-size:12px;color:var(--text-dim);white-space:nowrap}
.p-close{color:var(--text-dim);font-size:18px;width:30px;height:30px;display:flex;align-items:center;justify-content:center;border-radius:50%}
.p-close:hover{background:var(--hover)}

/* toast */
.toast{position:fixed;top:70px;left:50%;transform:translateX(-50%) translateY(-16px);z-index:99;background:var(--toast-bg);backdrop-filter:blur(16px);border:1px solid var(--line);border-radius:14px;padding:12px 22px;font-size:14px;color:var(--text);opacity:0;pointer-events:none;transition:.3s;box-shadow:0 10px 40px rgba(0,0,0,.18);max-width:86vw}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ===== 页脚 ===== */
.site-footer{background:var(--bg2);border-top:1px solid var(--line);margin-top:60px}
.footer-in{display:flex;flex-direction:column;gap:18px;padding:32px 22px}
.footer-brand{display:flex;align-items:center;gap:12px}
.footer-brand b{font-size:16px;font-weight:600}
.footer-brand p{font-size:13px;color:var(--text-dim)}
.footer-brand .logo-mark{width:28px;height:28px;font-size:14px}
.footer-links{display:flex;gap:24px;flex-wrap:wrap;font-size:13px;color:var(--text-2)}
.footer-links a:hover{color:var(--blue-text);text-decoration:underline}
.footer-meta{font-size:12px;color:var(--text-dim);border-top:1px solid var(--line);padding-top:16px}

/* ===== 响应式 ===== */
@media (max-width:920px){
  .create-layout{grid-template-columns:1fr}
  .song-detail{grid-template-columns:1fr}
  .admin-layout{grid-template-columns:1fr}
  .admin-nav{position:static;grid-template-columns:repeat(auto-fit,minmax(90px,1fr));display:grid}
  .reward-grid{grid-template-columns:1fr}
}
@media (max-width:820px){
  .nav{display:none;position:absolute;top:52px;left:0;right:0;flex-direction:column;background:var(--bg);border-bottom:1px solid var(--line);padding:10px 14px 16px;gap:2px}
  .nav.open{display:flex}
  .nav a{padding:12px 14px;font-size:15px;border-radius:12px}
  .nav-toggle{display:block}
  .topbar-right .btn-ghost,.topbar-right .credit-chip{display:none}
  .topbar-right{gap:6px}
}
@media (max-width:640px){
  body{padding-bottom:88px}
  .topbar-in{height:50px;gap:10px}
  .nav{top:50px}
  .logo-text small{display:none}
  .hero{padding:60px 0 28px}
  .player-in{grid-template-columns:42px minmax(0,1fr) auto;gap:10px;height:68px;padding:0 12px}
  .p-progress{grid-column:1/-1;height:4px}
  .p-controls,.p-time,.p-close{display:none}
  .p-cover{width:42px;height:42px}
  .grid-songs{grid-template-columns:repeat(2,1fr);gap:12px}
  .rail{grid-auto-columns:62vw}
  .section{padding:52px 0 8px}
  .panel{padding:20px 18px}
  .sec-head{flex-direction:column;align-items:flex-start;gap:4px}
  .footer-in{padding:28px 20px}
  .auth-card{padding:32px 24px}
}

/* =========================================================
   登录 / 注册 · 左图右表单分栏
   ========================================================= */
.auth-split{
  max-width:960px;margin:48px auto 60px;display:grid;grid-template-columns:1.02fr 1fr;
  border-radius:26px;overflow:hidden;box-shadow:0 24px 70px rgba(0,0,0,.16);
  background:var(--card);border:1px solid var(--line);min-height:600px;
}
.auth-visual{
  position:relative;display:flex;flex-direction:column;justify-content:space-between;
  padding:34px 36px;color:#fff;isolation:isolate;
  background:#120c06 url('/assets/img/auth-hero.png') center/cover no-repeat;
}
.auth-visual::before{
  content:'';position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(10,6,2,.62) 0%,rgba(10,6,2,.05) 42%,rgba(10,6,2,.72) 100%);
}
.av-brand{display:flex;align-items:center;gap:10px}
.av-brand .logo-mark{background:rgba(255,255,255,.92);color:#1d1d1f;width:34px;height:34px;font-size:17px;border-radius:9px}
.av-site{font-weight:600;font-size:17px;letter-spacing:.02em}
.av-mid h2{font-size:clamp(26px,3.2vw,34px);line-height:1.3;font-weight:700;letter-spacing:-.01em;text-shadow:0 2px 18px rgba(0,0,0,.45)}
.av-mid p{margin-top:12px;font-size:15px;opacity:.85}
.av-songs{display:flex;flex-direction:column;gap:10px}
.av-song{
  display:flex;align-items:center;gap:12px;padding:10px 14px;border-radius:14px;max-width:270px;
  background:rgba(20,14,8,.55);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.14);
}
.av-song i{
  display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;
  background:rgba(255,255,255,.92);color:#1d1d1f;font-style:normal;font-size:11px;flex-shrink:0;
}
.av-song b{display:block;font-size:13.5px;font-weight:600;line-height:1.3}
.av-song span{font-size:11.5px;opacity:.75}
.auth-form-col{display:flex;align-items:center;justify-content:center;padding:44px 40px}
.auth-form{width:100%;max-width:330px}
.auth-form h1{font-size:27px;font-weight:700;letter-spacing:-.02em}
.auth-form .sub{margin:8px 0 26px;color:var(--text-dim);font-size:14.5px}
.auth-form .accent{color:var(--blue-text)}
.auth-form .auth-field{margin-bottom:16px}
.auth-form .auth-field label{font-size:13px;font-weight:600;color:var(--text-2);margin-bottom:6px;display:block}
.auth-form .auth-field input{
  width:100%;height:46px;border-radius:12px;border:1px solid var(--line-strong);
  background:var(--input-bg);color:var(--text);padding:0 14px;font-size:15px;outline:none;transition:.2s;
}
.auth-form .auth-field input:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(0,113,227,.15)}
.auth-submit{margin-top:6px;height:48px;border-radius:999px;font-size:16px}
.auth-other{display:flex;align-items:center;gap:14px;margin:22px 0 14px}
.auth-other>span{font-size:12.5px;color:var(--text-dim);flex-shrink:0}
.auth-other::after{content:'';flex:1;height:1px;background:var(--line)}
.oauth-douyin{
  display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;
  background:#111;color:#fff;flex-shrink:0;transition:.2s;
}
.oauth-douyin:hover{transform:scale(1.08);background:#00f2ea;color:#111}
.ref-banner{
  padding:10px 14px;border-radius:12px;margin-bottom:18px;font-size:13.5px;
  background:rgba(52,199,89,.1);border:1px solid rgba(52,199,89,.35);color:var(--green);
}
.iv-avatar{
  display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:50%;
  background:var(--panel-strong);font-size:12px;color:var(--text-dim);
}
@media (max-width:860px){
  .auth-split{grid-template-columns:1fr;min-height:0;margin:26px 16px 40px}
  .auth-visual{min-height:180px;padding:22px 24px;gap:14px}
  .av-mid h2{font-size:22px}
  .av-songs{display:none}
  .auth-form-col{padding:30px 24px}
}

/* =========================================================
   工作台 · 侧边栏布局（苏诺工作台式）
   ========================================================= */
.studio{display:flex;gap:0;max-width:1280px;margin:0 auto;align-items:flex-start}
.studio-side{
  width:200px;flex-shrink:0;position:sticky;top:52px;align-self:flex-start;
  padding:18px 10px 20px 14px;min-height:calc(100vh - 52px);
}
.ss-group{margin-bottom:20px}
.ss-label{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--text-dim);padding:4px 10px;margin-bottom:4px}
.ss-label i{font-style:normal;font-size:11px}
.studio-side a{
  display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:10px;
  font-size:13.5px;color:var(--text-2);transition:.15s;
}
.studio-side a:hover{background:var(--hover)}
.studio-side a.cur{background:var(--panel-strong);color:var(--text);font-weight:600}
.ss-ic{width:18px;text-align:center;font-style:normal;opacity:.75}
.ss-badge{margin-left:auto;font-style:normal;font-size:9.5px;font-weight:700;padding:2px 6px;border-radius:6px;letter-spacing:.04em}
.ss-badge.hot{background:var(--red);color:#fff}
.ss-badge.free{background:rgba(52,199,89,.15);color:var(--green)}
.ss-bottom{border-top:1px solid var(--line);padding-top:12px;margin-top:8px}
.studio-main{flex:1;min-width:0;padding:18px 22px 30px 6px}
.sm-hero{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:18px;
  background:var(--card);border:1px solid var(--line);border-radius:22px;padding:30px 28px;
  position:relative;overflow:hidden;box-shadow:var(--shadow);
}
.sm-hero-left h1{font-size:clamp(21px,2.6vw,27px);font-weight:700;letter-spacing:-.015em;color:var(--text)}
.sm-sub{margin:8px 0 18px;font-size:13.5px;color:var(--text-dim)}
.sm-inputcard{
  background:var(--card);border:1px solid var(--line);border-radius:16px;padding:14px;
  box-shadow:var(--shadow);
}
.sm-inputcard textarea{
  width:100%;min-height:76px;border:0;outline:none;resize:none;background:transparent;
  color:var(--text);font-size:14.5px;line-height:1.6;
}
.sm-inputfoot{display:flex;align-items:center;justify-content:flex-end;gap:14px;margin-top:6px}
.sm-count{font-size:11.5px;color:var(--text-dim)}
.sm-go{
  background:var(--blue);color:#fff;border:0;border-radius:999px;
  padding:9px 22px;font-size:14px;font-weight:600;transition:.2s;
}
.sm-go:hover{background:var(--blue-h)}
.sm-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.sm-chip{
  padding:6px 14px;border-radius:999px;font-size:12.5px;cursor:pointer;
  background:var(--card);border:1px solid var(--line-strong);color:var(--text-2);transition:.15s;
}
.sm-chip:hover{border-color:var(--blue);color:var(--blue-text)}
.sm-chip.on{background:var(--text);border-color:var(--text);color:var(--bg);font-weight:600}
.sm-tools{display:flex;gap:16px;margin-top:14px;font-size:12.5px}
.sm-tools a{color:var(--text-dim)}
.sm-tools a:hover{color:var(--text)}
.sm-today{
  background:var(--card);border:1px solid var(--line);border-radius:18px;padding:16px;
  box-shadow:var(--shadow);align-self:start;
}
.smt-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.smt-head b{font-size:15px}
.smt-head a{font-size:11.5px;color:var(--text-dim)}
.smt-head a:hover{color:var(--text)}
.smt-row{display:flex;align-items:center;gap:10px;padding:8px 6px;border-radius:12px;cursor:pointer}
.smt-row:hover{background:var(--hover)}
.smt-no{font-size:11px;color:var(--text-dim);width:18px;font-weight:600}
.smt-cover{position:relative;width:42px;height:42px;border-radius:9px;overflow:hidden;flex-shrink:0}
.smt-cover img{width:100%;height:100%;object-fit:cover}
.smt-cover i{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-style:normal;font-size:11px;color:#fff;background:rgba(0,0,0,.3);opacity:0;transition:.2s;
}
.smt-row:hover .smt-cover i,.hh-row:hover .hh-cover i,.chart-card:hover .cc-cover i{opacity:1}
.smt-info{flex:1;min-width:0}
.smt-info b{display:block;font-size:13px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.smt-info span{font-size:11px;color:var(--text-dim)}
.smt-dur{font-size:11px;color:var(--text-dim)}
.smt-empty{font-size:12.5px;color:var(--text-dim);padding:14px 4px}
.smt-dots{display:flex;gap:5px;justify-content:center;margin-top:10px}
.smt-dots i{width:5px;height:5px;border-radius:50%;background:var(--line-strong)}
.smt-dots i.on{background:var(--text-dim)}
.sm-chart{margin-top:22px}
.chart-rail{display:flex;gap:14px;overflow-x:auto;padding-bottom:8px;scrollbar-width:thin}
.chart-card{position:relative;width:150px;flex-shrink:0;cursor:pointer}
.chart-top{
  position:absolute;top:8px;left:8px;z-index:2;font-size:10px;font-weight:700;letter-spacing:.05em;
  background:var(--text);color:var(--bg);padding:3px 8px;border-radius:7px;
}
.cc-cover{position:relative;display:block;width:150px;height:150px;border-radius:14px;overflow:hidden}
.cc-cover img{width:100%;height:100%;object-fit:cover;transition:.3s}
.chart-card:hover .cc-cover img{transform:scale(1.05)}
.cc-cover i{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-style:normal;font-size:14px;color:#fff;background:rgba(0,0,0,.3);opacity:0;transition:.2s;
}
.cc-body{padding:8px 2px}
.cc-body b{display:block;font-size:12.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cc-body span{font-size:11px;color:var(--text-dim)}
@media (max-width:960px){
  .studio-side{display:none}
  .studio-main{padding:14px 16px 26px}
  .sm-hero{grid-template-columns:1fr}
}
@media (max-width:640px){
  .sm-hero{padding:20px 16px}
}

/* =========================================================
   首页 · Hero（苹果式简约，跟随主题）
   ========================================================= */
.home-hero{
  position:relative;overflow:hidden;color:var(--text);isolation:isolate;
  background:var(--bg2);border-bottom:1px solid var(--line);
}
.hh-rings{display:none}
.hh-grid{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:40px;align-items:center;padding-top:64px;padding-bottom:70px}
.hh-left h1{font-size:clamp(34px,5.4vw,58px);line-height:1.16;font-weight:700;letter-spacing:-.02em;color:var(--text)}
.hh-left h1 b{color:var(--blue-text)}
.hh-sub{margin:16px 0 26px;font-size:15.5px;color:var(--text-dim)}
.hh-inputcard{
  background:var(--card);border:1px solid var(--line-strong);
  border-radius:18px;padding:16px;box-shadow:var(--shadow);max-width:520px;
}
.hh-inputcard textarea{
  width:100%;min-height:64px;border:0;outline:none;resize:none;background:transparent;
  color:var(--text);font-size:15px;line-height:1.6;
}
.hh-inputcard textarea::placeholder{color:var(--text-dim)}
.hh-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:8px}
.hh-count{font-size:11.5px;color:var(--text-dim)}
.hh-btns{display:flex;gap:10px}
.hh-btn-gold{
  background:var(--blue);color:#fff;border:0;border-radius:999px;
  padding:10px 24px;font-size:14.5px;font-weight:600;transition:.2s;
}
.hh-btn-gold:hover{background:var(--blue-h);transform:translateY(-1px)}
.hh-btn-ghost{
  display:inline-flex;align-items:center;border:1px solid var(--line-strong);color:var(--text);
  border-radius:999px;padding:10px 20px;font-size:14.5px;transition:.2s;background:var(--card);
}
.hh-btn-ghost:hover{background:var(--hover)}
.hh-tags{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:16px;max-width:520px}
.hh-tags-label{font-size:12.5px;color:var(--text-dim);margin-right:2px}
.hh-tag{
  padding:5px 13px;border-radius:999px;font-size:12.5px;cursor:pointer;
  border:1px solid var(--line-strong);color:var(--text-2);background:var(--card);transition:.15s;
}
.hh-tag:hover{border-color:var(--text-dim)}
.hh-tag.on{background:var(--text);border-color:var(--text);color:var(--bg);font-weight:600}
.hh-playlist{
  background:var(--card);border:1px solid var(--line);
  border-radius:20px;padding:18px;box-shadow:var(--shadow);
}
.hh-pl-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.hh-pl-head b{font-size:15.5px;color:var(--text)}
.hh-pl-head a{font-size:11.5px;color:var(--text-dim)}
.hh-pl-head a:hover{color:var(--text)}
.hh-row{display:flex;align-items:center;gap:12px;padding:9px 6px;border-radius:12px;cursor:pointer}
.hh-row:hover{background:var(--hover)}
.hh-cover{position:relative;width:46px;height:46px;border-radius:10px;overflow:hidden;flex-shrink:0}
.hh-cover img{width:100%;height:100%;object-fit:cover}
.hh-cover i{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-style:normal;font-size:12px;color:#fff;background:rgba(0,0,0,.35);opacity:0;transition:.2s;
}
.hh-info{flex:1;min-width:0}
.hh-info b{display:block;font-size:13.5px;font-weight:600;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hh-info span{font-size:11.5px;color:var(--text-dim)}
.hh-dur{font-size:11.5px;color:var(--text-dim)}
.hh-empty{font-size:13px;color:var(--text-dim);padding:16px 4px}
.hh-empty a{color:var(--blue-text)}
.hh-pl-more{display:block;text-align:center;font-size:12.5px;color:var(--text-dim);margin-top:8px;padding-top:10px;border-top:1px solid var(--line)}
.hh-pl-more:hover{color:var(--text)}
@media (max-width:920px){
  .hh-grid{grid-template-columns:1fr;gap:28px;padding-top:44px;padding-bottom:50px}
  .hh-playlist{max-width:520px}
}
@media (max-width:640px){
  .hh-inputcard{padding:12px}
  .hh-foot{flex-direction:column-reverse;align-items:stretch}
  .hh-btns{justify-content:stretch}
  .hh-btn-gold,.hh-btn-ghost{flex:1;text-align:center;justify-content:center}
}