/* ==========================================================
   极简影音云 - 双主题设计系统
   data-theme="ios-glass"  iOS 液态玻璃
   data-theme="google-m3"  Google Material You (M3)
   ========================================================== */

/* ---------- 主题 A：iOS 液态玻璃 (默认) ---------- */
:root, [data-theme="ios-glass"] {
  --bg: #000;
  --bg-grad: radial-gradient(circle at 20% 0%, #1b2a4a 0%, #05070d 55%, #000 100%);
  --surface: rgba(255,255,255,0.08);
  --surface-strong: rgba(255,255,255,0.14);
  --border: rgba(255,255,255,0.18);
  --highlight: inset 0 1px 0 rgba(255,255,255,0.35), inset 0 -1px 0 rgba(255,255,255,0.06);
  --blur: blur(28px) saturate(180%);
  --text: #fff;
  --text-sub: rgba(235,235,245,0.6);
  --primary: #0a84ff;
  --primary-text: #fff;
  --accent-grad: linear-gradient(135deg,#0a84ff,#5e5ce6 60%,#bf5af2);
  --danger: #ff453a;
  --r-card: 22px;
  --r-btn: 999px;
  --r-nav: 30px;
  --shadow: 0 12px 40px rgba(0,0,0,0.45);
  --nav-bg: rgba(30,30,40,0.45);
  --ease: cubic-bezier(0.32,0.72,0,1);
}

/* ---------- 主题 B：Google M3 ---------- */
[data-theme="google-m3"] {
  --bg: #141218;
  --bg-grad: #141218;
  --surface: #211f26;
  --surface-strong: #2b2930;
  --border: transparent;
  --highlight: none;
  --blur: none;
  --text: #e6e0e9;
  --text-sub: #cac4d0;
  --primary: #d0bcff;
  --primary-text: #381e72;
  --accent-grad: linear-gradient(#d0bcff,#d0bcff);
  --danger: #f2b8b5;
  --r-card: 20px;
  --r-btn: 999px;
  --r-nav: 0px;
  --shadow: 0 1px 3px rgba(0,0,0,0.4);
  --nav-bg: #211f26;
  --ease: cubic-bezier(0.2,0,0,1);
}

* { margin:0; padding:0; box-sizing:border-box; -webkit-tap-highlight-color:transparent; }
html, body { width:100%; height:100%; overflow:hidden; background:var(--bg); color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","Roboto","PingFang SC","Microsoft YaHei",sans-serif; }
button { font-family:inherit; border:none; outline:none; cursor:pointer; color:inherit; background:none;
  display:inline-flex; align-items:center; justify-content:center; transition:all .25s var(--ease); }
button:active { transform:scale(.94); }
ul { list-style:none; }

.app-container { position:relative; width:100vw; height:100vh; display:flex; flex-direction:column;
  background:var(--bg-grad); overflow:hidden;
  padding-top:env(safe-area-inset-top,0); padding-left:env(safe-area-inset-left,0); padding-right:env(safe-area-inset-right,0); }

/* ---------- 头部 ---------- */
.app-header { display:flex; justify-content:space-between; align-items:center; padding:10px 16px; z-index:5; }
.app-brand { display:flex; align-items:center; gap:10px; }
.brand-avatar { width:36px; height:36px; border-radius:12px; background:var(--accent-grad); color:var(--primary-text);
  display:flex; align-items:center; justify-content:center; }
.brand-avatar svg { width:22px; height:22px; }
.brand-name { font-size:1rem; font-weight:700; }
.brand-sub { font-size:.7rem; color:var(--text-sub); }
.header-right { display:flex; gap:8px; align-items:center; }
.btn-icon { width:38px; height:38px; border-radius:50%; background:var(--surface); box-shadow:var(--highlight); }
.btn-icon svg { width:20px; height:20px; }
.btn-primary { padding:8px 16px; border-radius:var(--r-btn); background:var(--primary); color:var(--primary-text);
  font-weight:600; font-size:.85rem; gap:6px; }
[data-theme="ios-glass"] .btn-primary { background:var(--accent-grad); box-shadow:var(--highlight), 0 6px 18px rgba(94,92,230,.4); }
.btn-primary svg { width:18px; height:18px; }

/* ---------- 主视图 ---------- */
.app-main { flex:1; position:relative; overflow:hidden; }
.tab-view { position:absolute; inset:0; overflow-y:auto; padding:6px 16px 170px; display:none; -webkit-overflow-scrolling:touch; }
.tab-view.active { display:block; animation:fadeIn .35s var(--ease); }
@keyframes fadeIn { from{opacity:0; transform:translateY(8px);} to{opacity:1; transform:none;} }
.view-header { display:flex; justify-content:space-between; align-items:baseline; margin:8px 2px 14px; }
.view-header h2 { font-size:1.6rem; font-weight:800; }
.count-badge, .status-pill { font-size:.75rem; color:var(--text-sub); }
.status-pill.connected { color:#34c759; }
.quick-filter-bar { display:flex; gap:8px; margin-bottom:14px; }
.filter-chip { padding:7px 14px; border-radius:var(--r-btn); background:var(--surface); font-size:.8rem; color:var(--text-sub); box-shadow:var(--highlight); }
.filter-chip.active { background:var(--primary); color:var(--primary-text); }

/* 空状态 */
.empty-placeholder { text-align:center; padding:50px 20px; background:var(--surface); border-radius:var(--r-card);
  backdrop-filter:var(--blur); -webkit-backdrop-filter:var(--blur); box-shadow:var(--highlight); border:1px solid var(--border); }
.placeholder-icon { font-size:2.6rem; margin-bottom:10px; }
.empty-placeholder h3 { margin-bottom:8px; }
.empty-placeholder p { font-size:.8rem; color:var(--text-sub); line-height:1.6; margin-bottom:18px; }
.btn-action-hollow { padding:10px 22px; border-radius:var(--r-btn); border:1px solid var(--primary); color:var(--primary); font-weight:600; }

/* 音乐列表 */
.media-item { display:flex; align-items:center; gap:12px; padding:10px 12px; margin-bottom:8px; border-radius:var(--r-card);
  background:var(--surface); backdrop-filter:var(--blur); -webkit-backdrop-filter:var(--blur); box-shadow:var(--highlight); border:1px solid var(--border); cursor:pointer; }
.media-item.playing { outline:2px solid var(--primary); }
.media-cover { width:46px; height:46px; border-radius:14px; background:var(--accent-grad); color:var(--primary-text);
  display:flex; align-items:center; justify-content:center; font-size:1.3rem; flex-shrink:0; }
.media-info { flex:1; min-width:0; }
.media-name { font-size:.95rem; font-weight:600; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.media-meta { font-size:.72rem; color:var(--text-sub); margin-top:3px; }
.media-del { width:32px; height:32px; border-radius:50%; color:var(--text-sub); }

/* 视频网格 */
.video-grid { display:grid; grid-template-columns:repeat(auto-fill,minmax(150px,1fr)); gap:12px; }
.video-card { border-radius:var(--r-card); overflow:hidden; background:var(--surface); backdrop-filter:var(--blur);
  -webkit-backdrop-filter:var(--blur); box-shadow:var(--highlight); border:1px solid var(--border); cursor:pointer; }
.video-thumb { aspect-ratio:16/10; background:var(--accent-grad); color:var(--primary-text); display:flex; align-items:center; justify-content:center; font-size:2rem; }
.video-card-info { padding:10px 12px; }

/* 云资源 / 设置卡片 */
.cloud-dashboard-card, .profile-user-card, .theme-switch-card, .settings-item-card, .sys-info-card {
  background:var(--surface); border-radius:var(--r-card); padding:16px; margin-bottom:14px;
  backdrop-filter:var(--blur); -webkit-backdrop-filter:var(--blur); box-shadow:var(--highlight); border:1px solid var(--border); }
.cloud-card-header { display:flex; gap:12px; align-items:center; margin-bottom:12px; }
.cloud-icon { font-size:1.8rem; }
.cloud-card-header p, .user-tip, .item-text p, .theme-meta p { font-size:.75rem; color:var(--text-sub); margin-top:2px; }
.cloud-info-grid { display:grid; grid-template-columns:1fr 1fr; gap:10px; margin-bottom:12px; }
.info-box { background:var(--surface-strong); border-radius:14px; padding:10px; display:flex; flex-direction:column; gap:4px; }
.info-box .label { font-size:.7rem; color:var(--text-sub); }
.info-box .val { font-size:.8rem; font-weight:600; }
.btn-secondary { padding:10px 18px; border-radius:var(--r-btn); background:var(--surface-strong); font-weight:600; font-size:.85rem; }
.cloud-files-section h4, .group-title { font-size:.8rem; color:var(--text-sub); margin:14px 4px 8px; font-weight:600; }
.cloud-file-item { padding:12px; font-size:.8rem; color:var(--text-sub); }
.profile-user-card { display:flex; align-items:center; gap:14px; }
.user-avatar { width:54px; height:54px; border-radius:50%; background:var(--accent-grad); display:flex; align-items:center; justify-content:center; font-size:1.6rem; }
.user-name-row { display:flex; align-items:center; gap:8px; }
.badge-vip { font-size:.65rem; padding:2px 8px; border-radius:99px; background:var(--primary); color:var(--primary-text); }
.theme-switch-card { padding:8px; }
.theme-option { display:flex; align-items:center; gap:12px; padding:10px; border-radius:18px; cursor:pointer; border:2px solid transparent; }
.theme-option.active { border-color:var(--primary); background:var(--surface-strong); }
.theme-preview-box { width:56px; height:56px; border-radius:16px; display:flex; align-items:center; justify-content:center; font-size:.7rem; font-weight:700; position:relative; flex-shrink:0; }
.ios-preview { background:linear-gradient(135deg,#0a84ff,#bf5af2); box-shadow:inset 0 1px 0 rgba(255,255,255,.5); }
.m3-preview { background:#d0bcff; color:#381e72; }
.m3-circle { position:absolute; top:6px; right:6px; width:14px; height:14px; border-radius:50%; background:#381e72; opacity:.4; }
.theme-meta { flex:1; font-size:.85rem; }
.theme-check { color:var(--primary); font-weight:800; opacity:0; }
.theme-option.active .theme-check { opacity:1; }
.settings-item-card { display:flex; justify-content:space-between; align-items:center; }
.btn-primary-small { padding:7px 16px; border-radius:var(--r-btn); background:var(--primary); color:var(--primary-text); font-size:.8rem; font-weight:600; }
.info-row { display:flex; justify-content:space-between; padding:8px 0; font-size:.8rem; }
.info-row span:first-child { color:var(--text-sub); }

/* ---------- 底部导航 ---------- */
.app-bottom-nav { position:absolute; left:12px; right:12px; bottom:calc(env(safe-area-inset-bottom,0px) + 10px);
  display:flex; justify-content:space-around; padding:8px 6px; z-index:30;
  background:var(--nav-bg); backdrop-filter:var(--blur); -webkit-backdrop-filter:var(--blur);
  border-radius:var(--r-nav); box-shadow:var(--highlight), var(--shadow); border:1px solid var(--border); }
[data-theme="google-m3"] .app-bottom-nav { left:0; right:0; bottom:0; padding-bottom:calc(env(safe-area-inset-bottom,0px) + 10px); border-radius:0; }
.nav-item { flex-direction:column; gap:3px; flex:1; padding:4px 0; color:var(--text-sub); font-size:.7rem; }
.nav-icon-wrap { width:52px; height:28px; border-radius:99px; display:flex; align-items:center; justify-content:center; }
.nav-icon-wrap svg { width:22px; height:22px; }
.nav-item.active { color:var(--text); font-weight:600; }
.nav-item.active .nav-icon-wrap { background:var(--surface-strong); }
[data-theme="google-m3"] .nav-item.active .nav-icon-wrap { background:#4a4458; }
[data-theme="ios-glass"] .nav-item.active { color:var(--primary); }

/* ---------- 全局迷你播放条 ---------- */
.global-mini-player { position:absolute; left:12px; right:12px; bottom:calc(env(safe-area-inset-bottom,0px) + 84px);
  display:flex; align-items:center; gap:8px; padding:8px 10px; z-index:29; overflow:hidden;
  background:var(--nav-bg); backdrop-filter:var(--blur); -webkit-backdrop-filter:var(--blur);
  border-radius:20px; box-shadow:var(--highlight), var(--shadow); border:1px solid var(--border); }
[data-theme="google-m3"] .global-mini-player { background:#2b2930; bottom:calc(env(safe-area-inset-bottom,0px) + 80px); }
.mini-progress-track { position:absolute; left:0; right:0; top:0; height:2px; background:var(--surface); }
.mini-progress-fill { height:100%; width:0; background:var(--primary); }
.mini-content { display:flex; align-items:center; gap:10px; flex:1; min-width:0; cursor:pointer; }
.mini-disc-thumb { width:40px; height:40px; border-radius:50%; background:repeating-radial-gradient(#111,#111 3px,#222 4px); display:flex; align-items:center; justify-content:center; animation:spin 12s linear infinite; animation-play-state:paused; flex-shrink:0; }
.mini-disc-thumb.playing { animation-play-state:running; }
.mini-disc-center { width:14px; height:14px; border-radius:50%; background:var(--accent-grad); }
.mini-info { min-width:0; }
.mini-title { font-size:.85rem; font-weight:600; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.mini-lyric { font-size:.7rem; color:var(--text-sub); white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.btn-mini-action { width:36px; height:36px; border-radius:50%; }
.btn-mini-action svg { width:22px; height:22px; }
@keyframes spin { to { transform:rotate(360deg); } }

/* ---------- 全屏音乐弹层 ---------- */
.music-modal { position:fixed; inset:0; z-index:60; display:flex; flex-direction:column;
  background:var(--bg-grad); background-color:var(--bg); transform:translateY(100%); transition:transform .45s var(--ease);
  padding:env(safe-area-inset-top,0) 0 env(safe-area-inset-bottom,0); }
.music-modal.open { transform:translateY(0); }
.modal-pull-bar-wrap { padding:8px; display:flex; justify-content:center; }
.modal-pull-bar { width:40px; height:5px; border-radius:99px; background:var(--text-sub); opacity:.5; }
.modal-header { display:flex; justify-content:space-between; align-items:center; padding:0 14px; }
.btn-icon-ghost { width:40px; height:40px; border-radius:50%; }
.btn-icon-ghost svg { width:26px; height:26px; }
.modal-mode-tabs { display:flex; background:var(--surface); border-radius:99px; padding:3px; }
.modal-tab-btn { padding:6px 18px; border-radius:99px; font-size:.8rem; color:var(--text-sub); }
.modal-tab-btn.active { background:var(--primary); color:var(--primary-text); font-weight:600; }
.modal-view-panel { flex:1; display:flex; flex-direction:column; align-items:center; justify-content:center; padding:10px 24px; overflow:hidden; min-height:0; }
.modal-vinyl-record { width:min(70vw,300px); height:min(70vw,300px); border-radius:50%;
  background:repeating-radial-gradient(#0d0d12,#0d0d12 4px,#1c1c26 5px,#0a0a0f 7px);
  box-shadow:0 20px 50px rgba(0,0,0,.6), inset 0 0 0 2px rgba(255,255,255,.1);
  display:flex; align-items:center; justify-content:center; animation:spin 20s linear infinite; animation-play-state:paused; }
.modal-vinyl-record.playing { animation-play-state:running; }
.modal-vinyl-core { width:34%; height:34%; border-radius:50%; background:var(--accent-grad); color:var(--primary-text); display:flex; align-items:center; justify-content:center; }
.modal-vinyl-core svg { width:40%; height:40%; }
.modal-vinyl-wrap { margin-bottom:26px; }
.modal-song-info { text-align:center; max-width:100%; }
.modal-song-info h2 { font-size:1.3rem; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.modal-song-info p { font-size:.8rem; color:var(--text-sub); margin-top:4px; }
.modal-single-lyric { margin-top:16px; color:var(--primary); font-size:.9rem; min-height:22px; text-align:center; }
.lyrics-scroll-container { width:100%; height:100%; overflow-y:auto; padding:30vh 0;
  mask-image:linear-gradient(transparent,#000 15%,#000 85%,transparent); -webkit-mask-image:linear-gradient(transparent,#000 15%,#000 85%,transparent); }
.lyrics-flow-list { display:flex; flex-direction:column; gap:18px; text-align:center; }
.lyric-line { font-size:1rem; color:var(--text-sub); opacity:.55; padding:4px 8px; cursor:pointer; transition:all .3s var(--ease); }
.lyric-line.active { color:var(--text); opacity:1; font-size:1.4rem; font-weight:800; }
.lyric-empty-tip { color:var(--text-sub); font-size:.85rem; }
.modal-controls-wrap { padding:10px 26px 24px; }
.modal-seek-row { display:flex; align-items:center; gap:10px; font-size:.72rem; color:var(--text-sub); margin-bottom:14px; }
.modal-seek-row input { flex:1; -webkit-appearance:none; height:4px; border-radius:99px; background:var(--surface-strong); accent-color:var(--primary); }
.modal-btn-row { display:flex; justify-content:center; align-items:center; gap:28px; }
.btn-ctrl-circle { width:50px; height:50px; border-radius:50%; background:var(--surface); box-shadow:var(--highlight); }
.btn-ctrl-circle svg { width:24px; height:24px; }
.btn-ctrl-circle.play-hub { width:68px; height:68px; background:var(--primary); color:var(--primary-text); }
.btn-ctrl-circle.play-hub svg { width:32px; height:32px; }

/* ---------- 视频弹层 ---------- */
.video-player-modal { position:fixed; inset:0; z-index:70; background:#000; display:none; flex-direction:column; }
.video-player-modal.open { display:flex; }
.video-modal-bar { position:absolute; top:0; left:0; right:0; z-index:5; display:flex; align-items:center; gap:12px;
  padding:calc(env(safe-area-inset-top,0px) + 8px) 12px 8px; background:linear-gradient(rgba(0,0,0,.7),transparent); }
.btn-icon-blur { padding:7px 14px; border-radius:99px; background:rgba(255,255,255,.18); backdrop-filter:blur(16px); -webkit-backdrop-filter:blur(16px); gap:4px; font-size:.85rem; color:#fff; }
.btn-icon-blur svg { width:18px; height:18px; }
.video-top-title { font-size:.85rem; color:#fff; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; }
.artplayer-container { flex:1; width:100%; height:100%; }

/* 登录遮罩 */
.login-overlay { position:fixed; inset:0; z-index:90; display:flex; align-items:center; justify-content:center; padding:20px;
  background:var(--bg-grad); background-color:var(--bg); }
.login-box { width:100%; max-width:380px; text-align:center; padding:30px 24px; border-radius:var(--r-card);
  background:var(--surface); backdrop-filter:var(--blur); -webkit-backdrop-filter:var(--blur); box-shadow:var(--highlight), var(--shadow); border:1px solid var(--border); }
.login-logo { font-size:2.4rem; margin-bottom:6px; }
.login-box h2 { font-size:1.5rem; margin-bottom:4px; }
.login-box p { font-size:.8rem; color:var(--text-sub); margin-bottom:18px; }
.login-box input { width:100%; height:48px; margin-bottom:12px; padding:0 16px; border-radius:14px; border:1px solid var(--border);
  background:var(--surface-strong); color:var(--text); font-size:1rem; outline:none; }
.login-box input:focus { border-color:var(--primary); }
.login-error { min-height:18px; font-size:.8rem; color:var(--danger); margin-bottom:8px; }
.btn-login { width:100%; height:48px; border-radius:var(--r-btn); background:var(--primary); color:var(--primary-text); font-weight:700; font-size:1rem; }
[data-theme="ios-glass"] .btn-login { background:var(--accent-grad); }
a.btn-primary-small { text-decoration:none; display:inline-flex; align-items:center; }

/* 版本更新横幅 */
.update-banner { position:fixed; top:calc(env(safe-area-inset-top,0px) + 12px); left:50%; transform:translateX(-50%);
  width:min(92vw,440px); padding:10px 14px; border-radius:99px; background:var(--surface-strong);
  backdrop-filter:blur(20px); -webkit-backdrop-filter:blur(20px); border:1px solid var(--primary);
  box-shadow:var(--shadow); display:flex; align-items:center; justify-content:space-between; gap:10px; z-index:95; font-size:.82rem; }
.update-banner-actions { display:flex; align-items:center; gap:6px; flex-shrink:0; }
.btn-update-now { padding:5px 12px; border-radius:99px; background:var(--primary); color:var(--primary-text); font-size:.78rem; font-weight:600; }
.btn-update-close { width:26px; height:26px; border-radius:50%; color:var(--text-sub); font-size:.8rem; }

/* Toast */
.toast { position:fixed; left:50%; bottom:170px; transform:translate(-50%,20px); padding:10px 18px; border-radius:99px;
  background:var(--surface-strong); backdrop-filter:blur(20px); -webkit-backdrop-filter:blur(20px); color:var(--text);
  font-size:.82rem; opacity:0; pointer-events:none; transition:all .3s var(--ease); z-index:100; }
.toast.show { opacity:1; transform:translate(-50%,0); }

@media (min-width:768px) {
  .app-bottom-nav { left:50%; right:auto; width:480px; transform:translateX(-50%); }
  .global-mini-player { left:50%; right:auto; width:480px; transform:translateX(-50%); }
}