/* ============================================================
 * 声刻 SonicMint · 设计系统（参考 tapeout.link 视觉语言）
 * ============================================================ */

:root {
  --bg: #f4f3fa;
  --bg-gradient: radial-gradient(1200px 600px at 10% -10%, rgba(91,75,224,.10), transparent 60%),
                 radial-gradient(1000px 500px at 110% 0%, rgba(91,75,224,.07), transparent 55%),
                 #f4f3fa;
  --card: #ffffff;
  --text: #15132c;
  --text-2: #47446a;
  --muted: #6f6c8f;
  --border: #e8e6f2;
  --primary: #5b4be0;
  --primary-soft: rgba(91,75,224,.10);
  --primary-grad: linear-gradient(135deg, #5b4be0, #7c5cff);
  --accent: #f59e0b;
  --danger: #ef4444;
  --success: #10b981;
  --r-lg: 20px;
  --r-md: 13px;
  --r-sm: 9px;
  --shadow-sm: 0 1px 2px rgba(21,19,44,.04), 0 2px 6px rgba(21,19,44,.04);
  --shadow-md: 0 4px 14px rgba(21,19,44,.06), 0 8px 30px rgba(21,19,44,.05);
  --shadow-lg: 0 10px 30px rgba(21,19,44,.08), 0 20px 60px rgba(21,19,44,.06);
  --sidebar-w: 232px; /* 左侧菜单栏宽度 */
  --topbar-h: 56px;   /* 内容区顶栏高度 */
}

* { box-sizing: border-box; margin: 0; padding: 0; }

/* 横向溢出用 clip 收敛：hidden 会把 body 变成滚动容器，导致 position: sticky 失效 */
html { overflow-x: clip; }

body {
  background: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "HarmonyOS Sans SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  min-height: 100dvh;
  -webkit-tap-highlight-color: transparent;
}

button, a, .btn, .track { touch-action: manipulation; }

a { color: var(--primary); text-decoration: none; }

/* 键盘可达性 */
:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; border-radius: var(--r-sm); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}

/* ───────── 布局外壳：左侧菜单栏 + 内容区 ───────── */
.shell { display: flex; min-height: 100vh; min-height: 100dvh; }

.sidebar {
  position: fixed; top: 0; left: 0; bottom: 0; z-index: 120;
  width: var(--sidebar-w);
  display: flex; flex-direction: column;
  padding: 18px 14px; overflow-y: auto;
  background: var(--card);
  border-right: 1px solid var(--border);
}
.sidebar__brand { display: flex; align-items: center; gap: 10px; padding: 6px 8px 18px; color: inherit; text-decoration: none; }
.sidebar__logo {
  width: 32px; height: 32px; flex: 0 0 auto;
  display: flex; align-items: center; justify-content: center;
  background: var(--primary-grad); border-radius: 9px;
  box-shadow: 0 4px 12px rgba(91,75,224,.3);
}
.sidebar__name { font-weight: 700; font-size: 16px; letter-spacing: -.01em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar__nav { display: flex; flex-direction: column; gap: 4px; }

/* 菜单项 */
.side-item {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px; border-radius: var(--r-sm);
  font-size: 14px; font-weight: 600; color: var(--text-2);
  text-decoration: none;
  transition: background .18s ease, color .18s ease;
}
.side-item svg { width: 18px; height: 18px; flex: 0 0 auto; opacity: .8; }
.side-item.is-active { background: var(--primary-grad); color: #fff; box-shadow: 0 4px 12px rgba(91,75,224,.28); }
.side-item.is-active svg { opacity: 1; }

/* 内容区 */
.shell__main { flex: 1; min-width: 0; margin-left: var(--sidebar-w); }

/* 内容区顶栏（吸顶）：移动端汉堡 + 右侧操作 */
.topbar {
  position: sticky; top: 0; z-index: 100;
  height: var(--topbar-h);
  display: flex; align-items: center; gap: 8px;
  padding: 0 20px;
  background: rgba(255,255,255,.74);
  backdrop-filter: blur(16px) saturate(1.6);
  -webkit-backdrop-filter: blur(16px) saturate(1.6);
  border-bottom: 1px solid var(--border);
}
.topbar__right { display: flex; align-items: center; gap: 8px; margin-left: auto; }
/* 顶栏内元素统一收窄，压缩栏高 */
.topbar .btn { padding: 7px 14px; font-size: 13px; }
.topbar .icon-btn { width: 30px; height: 30px; font-size: 12px; }
.nav-toggle { display: none; } /* 汉堡仅小屏显示 */
.topbar .nav-toggle { display: none; border: none; background: transparent; } /* 大屏隐藏汉堡；小屏显示时去掉圆框 */

/* 移动端抽屉遮罩 */
.scrim { position: fixed; inset: 0; z-index: 110; background: rgba(10,8,24,.45); }
.scrim[hidden] { display: none; }

.badge {
  font-size: 12px; padding: 5px 10px; border-radius: 20px;
  background: var(--card); border: 1px solid var(--border);
  color: var(--text-2);
}
.badge--ok { color: var(--success); border-color: rgba(16,185,129,.3); background: rgba(16,185,129,.08); }
/* VIP 订阅徽标：金色渐变 + 皇冠图标 */
.badge--vip {
  display: inline-flex; align-items: center; gap: 5px;
  font-weight: 700; color: #fff; border-color: transparent;
  background: linear-gradient(135deg, #f7c948, #e59b1f);
  box-shadow: 0 2px 8px rgba(229,155,31,.35);
}
.badge--vip svg { width: 13px; height: 13px; flex: 0 0 auto; }

/* ───────── 网络切换器 ───────── */
.net-switch { display: flex; gap: 0; border: 1px solid var(--border); border-radius: var(--r-sm); overflow: hidden; }
.btn--net {
  padding: 4px 10px !important; font-size: 12px !important; font-weight: 600;
  border: none; border-radius: 0 !important; min-height: 32px !important;
  background: var(--card); color: var(--text-2);
}
.btn--net.is-active { background: var(--primary-grad); color: #fff; }

/* ───────── 按钮 ───────── */
.btn {
  font: inherit; font-weight: 600; font-size: 14px;
  padding: 9px 16px; border-radius: var(--r-sm);
  border: 1px solid transparent; cursor: pointer;
  transition: all .15s ease; white-space: nowrap;
}
.btn--primary {
  background: var(--primary-grad); color: #fff;
  box-shadow: 0 4px 12px rgba(91,75,224,.3);
}
.btn--primary:active { transform: translateY(0); }
.btn--primary:disabled { opacity: .5; cursor: not-allowed; transform: none; box-shadow: none; }
.btn--ghost {
  background: var(--card); color: var(--text-2); border-color: var(--border);
}
.btn--ghost:disabled { opacity: .5; cursor: not-allowed; }
.btn--sm { padding: 5px 12px; font-size: 12px; }
.small-btn { padding: 5px 12px; font-size: 12px; margin-top: 6px; }
/* 带图标的按钮 */
.btn--ico { display: inline-flex; align-items: center; gap: 5px; }
.btn--ico svg { width: 14px; height: 14px; flex: 0 0 auto; }

/* ───────── 容器 ───────── */
.container {
  max-width: 1180px; margin: 0 auto;
  padding: 28px 24px 60px;
}
.container--narrow { max-width: 760px; }
.mt-24 { margin-top: 24px; }

/* ───────── 面板 ───────── */
.panel[hidden] { display: none; }
/* 滚动定位时避开吸顶栏 */
#publishForm { scroll-margin-top: calc(var(--topbar-h) + 12px); }
/* 个人面板：订阅状态行 */
.profile-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 6px 0 10px; }

/* ───────── 卡片 ───────── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 28px;
  margin-bottom: 22px;
  box-shadow: var(--shadow-sm);
}
.card h2 { font-size: clamp(18px, 3.6vw, 20px); font-weight: 700; letter-spacing: -.01em; margin-bottom: 6px; }
.subhead { font-size: 15px; font-weight: 700; margin: 18px 0 10px; }
.card__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.card__head-right { display: flex; align-items: center; gap: 8px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }

/* ───────── 表单 ───────── */
.form { margin-top: 18px; display: flex; flex-direction: column; gap: 16px; }
.form__row { display: flex; flex-direction: column; gap: 6px; }
.form__row label { font-size: 13px; font-weight: 600; color: var(--text-2); }
.form__row--2 { flex-direction: row; gap: 14px; }
.form__row--2 > div { flex: 1; display: flex; flex-direction: column; gap: 6px; }
.form__row input[type="text"],
.form__row input[type="number"],
.form__row input[type="file"],
.form__row textarea,
.form__row select {
  padding: 10px 12px; background: var(--bg);
  border: 1px solid var(--border); border-radius: var(--r-sm);
  color: var(--text); font-size: 14px; font-family: inherit;
  transition: border-color .15s;
}
.form__row textarea { resize: vertical; line-height: 1.6; }
.form__row select { cursor: pointer; }
.form__row input:focus,
.form__row textarea:focus,
.form__row select:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.form__row input[type="file"] { cursor: pointer; }
.form__actions { display: flex; align-items: center; gap: 12px; padding-top: 4px; }

.checkbox-row {
  display: flex; align-items: center; gap: 10px;
  font-size: 13px; color: var(--text-2); font-weight: 500;
  cursor: pointer; user-select: none;
}
.checkbox-row input[type="checkbox"] {
  width: 18px; height: 18px; accent-color: var(--primary); cursor: pointer;
}

/* 版税分配 */
.royalty-list { display: flex; flex-direction: column; gap: 8px; }
.royalty-item { display: flex; gap: 8px; align-items: center; }
.royalty-item input { flex: 1; padding: 9px 11px; background: var(--bg); border: 1px solid var(--border); border-radius: var(--r-sm); color: var(--text); font-size: 13px; font-family: inherit; }
.royalty-item input[type="number"] { max-width: 110px; }
.royalty-item button { padding: 8px 12px; background: transparent; border: 1px solid var(--border); color: var(--danger); border-radius: var(--r-sm); cursor: pointer; font-size: 12px; transition: all .15s; }

/* ───────── 曲目列表 ───────── */
.tracks { display: flex; flex-direction: column; gap: 10px; }

/* 曲库工具栏：搜索 + 全部/我的切换 */
.library-toolbar { display: flex; gap: 10px; align-items: center; margin: 12px 0; }
.search-input {
  flex: 1; min-width: 0;
  padding: 10px 14px; border-radius: var(--r-sm);
  border: 1px solid var(--border); background: var(--bg);
  font-size: 14px; color: var(--text); outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.search-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }

/* 创作者面板（版税仪表盘） */
.creator__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 14px; }
.creator__stat { background: var(--bg); border: 1px solid var(--border); border-radius: var(--r-sm); padding: 16px 12px; text-align: center; }
.creator__num { font-size: 22px; font-weight: 700; color: var(--text); }
.creator__label { font-size: 12px; color: var(--muted); margin-top: 4px; }
.creator__detail { margin-top: 14px; }
.creator__row {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 10px 12px; border-radius: var(--r-sm);
  border: 1px solid var(--border); margin-top: 8px; font-size: 13px;
}
.creator__row .t { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.creator__row .m { color: var(--muted); font-size: 12px; white-space: nowrap; }

/* 圆形图标按钮 */
.icon-btn {
  width: 40px; height: 40px; border-radius: 50%;
  border: 1px solid var(--border); background: var(--card);
  font-size: 16px; cursor: pointer; color: var(--text);
  display: inline-flex; align-items: center; justify-content: center;
  transition: all .15s; flex: 0 0 auto;
}
.icon-btn:active { transform: scale(.94); }
.icon-btn svg { display: block; }
.lang-btn { font-size: 13px; font-weight: 700; }
#audio { display: none; }  /* 自绘控制，隐藏原生播放器 */

/* 空状态引导 */
.empty-state {
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  padding: 36px 20px; text-align: center;
}
.empty-state__icon {
  width: 72px; height: 72px; border-radius: 24px;
  background: var(--primary-soft);
  display: flex; align-items: center; justify-content: center;
  font-size: 32px;
  box-shadow: inset 0 0 0 1px rgba(91,75,224,.12);
}
.empty-state p { color: var(--text-2); font-size: 14px; }
.track {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 16px;
  background: var(--card);
  border: 1px solid var(--border); border-radius: var(--r-md);
  cursor: pointer; transition: all .15s;
}
.track.is-playing {
  border-color: var(--primary);
  background: linear-gradient(90deg, var(--primary-soft), transparent 65%);
  box-shadow: var(--shadow-sm);
}
.track.is-playing .track__title { color: var(--primary); }
.track.is-playing .track__icon { background: var(--primary-soft); }
.track__icon { font-size: 24px; display: flex; align-items: center; justify-content: center; width: 52px; height: 52px; flex-shrink: 0; border-radius: var(--r-sm); background: var(--bg); }
.track__cover { width: 52px; height: 52px; border-radius: var(--r-sm); object-fit: cover; }
.track__body { flex: 1; min-width: 0; }
.track__title { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.track__meta { font-size: 12px; color: var(--muted); display: flex; gap: 14px; flex-wrap: wrap; margin-top: 2px; }
.track__plays { color: var(--primary); font-weight: 500; }
.track__actions { display: flex; gap: 6px; }

.tag {
  display: inline-block; padding: 1px 7px; border-radius: 5px;
  background: var(--primary-soft); color: var(--primary);
  font-size: 11px; font-weight: 600; margin-left: 4px;
}
.tag--free { background: rgba(16,185,129,.12); color: var(--success); }
.tag--own { background: rgba(16,185,129,.12); color: var(--success); }
.tag--price { background: rgba(245,158,11,.14); color: var(--accent); }

/* ───────── 迷你播放条（底部浮窗）───────── */
.mini {
  position: fixed; left: 50%; transform: translateX(-50%);
  bottom: calc(12px + env(safe-area-inset-bottom, 0px));
  z-index: 90;
  width: min(720px, calc(100vw - 24px));
  display: flex; align-items: center; gap: 12px;
  padding: 10px 14px;
  border: 1px solid var(--border); border-radius: 18px;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(20px) saturate(1.6);
  -webkit-backdrop-filter: blur(20px) saturate(1.6);
  box-shadow: 0 12px 40px rgba(21,19,44,.16), 0 2px 8px rgba(21,19,44,.06);
}
.mini[hidden] { display: none; }
/* 宽屏：迷你条在内容区居中，避开左侧菜单栏 */
@media (min-width: 901px) {
  .mini { left: calc(50% + var(--sidebar-w) / 2); }
}
.mini__cover, .mini__cover-fallback {
  width: 46px; height: 46px; flex: 0 0 auto; border-radius: 50%;
  object-fit: cover;
}
.mini__cover-fallback {
  display: flex; align-items: center; justify-content: center;
  background: var(--primary-soft); font-size: 20px;
}
/* hidden 需显式覆盖 display（封面/音符盘二选一） */
.mini__cover[hidden], .mini__cover-fallback[hidden] { display: none; }
/* 播放中封面缓慢旋转（黑胶感） */
.mini__cover.is-spinning, .mini__cover-fallback.is-spinning { animation: spin 8s linear infinite; }
.mini__info { flex: 1; min-width: 0; }
.mini__title { font-weight: 600; font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mini__artist { font-size: 12px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mini__controls { display: flex; align-items: center; gap: 4px; flex: 0 0 auto; }
.mini__btn {
  width: 36px; height: 36px; border: none; background: none; cursor: pointer;
  color: var(--text-2); border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  transition: background .15s, color .15s;
}
.mini__btn:hover { background: var(--primary-soft); color: var(--primary); }
/* 播放/暂停图标二选一：hidden 需显式覆盖 */
.mini__btn svg[hidden] { display: none; }
.mini__btn--play {
  width: 44px; height: 44px; background: var(--primary-grad); color: #fff;
  box-shadow: 0 4px 12px rgba(91,75,224,.35);
}
.mini__btn--play:hover { background: var(--primary-grad); color: #fff; }
body.has-mini { padding-bottom: calc(90px + env(safe-area-inset-bottom, 0px)); }

/* ───────── 我的曲库抽屉 ───────── */
.sheet { position: fixed; inset: 0; z-index: 300; }
.sheet__mask { position: absolute; inset: 0; background: rgba(10,8,24,.45); }
.sheet__panel {
  position: absolute; left: 50%; bottom: 0; transform: translate(-50%, 0);
  width: min(720px, 100%);
  max-height: 72vh; display: flex; flex-direction: column;
  background: var(--card);
  border: 1px solid var(--border); border-bottom: none;
  border-radius: 20px 20px 0 0;
  box-shadow: 0 -12px 40px rgba(21,19,44,.2);
  animation: sheet-up .24s ease;
}
@keyframes sheet-up { from { transform: translate(-50%, 100%); } to { transform: translate(-50%, 0); } }
.sheet__head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 18px 10px; border-bottom: 1px solid var(--border);
}
.sheet__title { font-weight: 700; font-size: 16px; }
.queue-list { overflow-y: auto; padding: 8px 10px calc(16px + env(safe-area-inset-bottom, 0px)); }
/* 歌词：行高亮随播放进度滚动 */
.lyrics-list { overflow-y: auto; padding: 20px 24px calc(28px + env(safe-area-inset-bottom, 0px)); scroll-behavior: smooth; }
.lyrics-line {
  font-size: 15px; line-height: 2.1; color: var(--muted);
  transition: color .2s, transform .2s;
}
.lyrics-line.is-active { color: var(--primary); font-weight: 600; transform: scale(1.03); transform-origin: left; }
.lyrics-plain { white-space: pre-wrap; }
.queue-empty { padding: 28px 12px; text-align: center; }
.queue-item {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px; border-radius: var(--r-sm); cursor: pointer;
  transition: background .15s;
}
.queue-item:hover { background: var(--primary-soft); }
.queue-item.is-playing .queue-item__title { color: var(--primary); }
.queue-item__icon {
  width: 40px; height: 40px; flex: 0 0 auto; overflow: hidden;
  border-radius: 10px; background: var(--bg);
  display: flex; align-items: center; justify-content: center; font-size: 18px;
}
.queue-item__icon img { width: 100%; height: 100%; object-fit: cover; }
.queue-item__body { flex: 1; min-width: 0; }
.queue-item__title { font-size: 14px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.queue-item__meta { font-size: 12px; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.queue-item__flag { color: var(--primary); font-weight: 700; }

@keyframes spin { to { transform: rotate(360deg); } }

/* ───────── Hero：黑胶唱片（音乐广场 + 发行页共用）───────── */
.hero { display: flex; align-items: center; gap: 56px; padding: 6px 4px 28px; }
.hero__vinyl { flex-shrink: 0; }
.hero__text h1 { font-size: clamp(24px, 3.6vw, 32px); font-weight: 800; line-height: 1.25; letter-spacing: -.02em; margin-bottom: 14px; }
.hero__accent { background: var(--primary-grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero__text .muted { font-size: 15px; max-width: 420px; margin-bottom: 22px; }
.hero__actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* 黑胶唱片主体 */
.vinyl { position: relative; width: 240px; height: 240px; }
.vinyl__disc {
  position: absolute; inset: 0; border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, #2a2a2a 0%, #0a0a0a 60%, #000 100%);
  box-shadow: 0 8px 30px rgba(0,0,0,.35), inset 0 0 0 2px rgba(255,255,255,.04);
  animation: spin 12s linear infinite;
}
.vinyl__disc.is-playing { animation: spin 2.5s linear infinite; }
.vinyl__groove { position: absolute; inset: 26px; border-radius: 50%; border: 1px solid rgba(255,255,255,.06); }
.vinyl__groove--2 { inset: 48px; }
.vinyl__groove--3 { inset: 70px; }

/* 中心标签（封面图） */
.vinyl__label {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 96px; height: 96px; border-radius: 50%;
  background: var(--primary-grad); overflow: hidden;
  box-shadow: 0 0 0 3px rgba(0,0,0,.5), inset 0 0 12px rgba(0,0,0,.4);
  display: flex; align-items: center; justify-content: center;
}
.vinyl__label img { width: 100%; height: 100%; object-fit: cover; }
.vinyl__label-fallback { font-size: 32px; }
.vinyl__hole {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 12px; height: 12px; border-radius: 50%;
  background: #1a1a1a; box-shadow: 0 0 0 1px rgba(255,255,255,.15);
}

/* 唱臂：播放时向唱片偏移 */
.vinyl__tonearm { position: absolute; top: -8px; right: -6px; transform-origin: 100% 0; transform: rotate(-25deg); transition: transform .5s ease; }
.vinyl__disc.is-playing ~ .vinyl__tonearm { transform: rotate(-8deg); }
.tonearm__base { position: absolute; top: 0; right: 0; width: 22px; height: 22px; border-radius: 50%; background: linear-gradient(145deg, #c8c8c8, #8a8a8a); box-shadow: 0 2px 6px rgba(0,0,0,.3); }
.tonearm__arm { position: absolute; top: 10px; right: 10px; width: 112px; height: 5px; background: linear-gradient(90deg, #8a8a8a, #c8c8c8); border-radius: 3px; transform-origin: right center; transform: rotate(-20deg); box-shadow: 0 2px 4px rgba(0,0,0,.2); }
.tonearm__head { position: absolute; top: 42px; left: 0; width: 14px; height: 20px; background: linear-gradient(145deg, #d0d0d0, #909090); border-radius: 3px; box-shadow: 0 2px 4px rgba(0,0,0,.3); }

/* ───────── 规则页 ───────── */
.rules-hero { text-align: center; padding: 30px 0 10px; }
.rules-hero h1 { font-size: clamp(24px, 4.4vw, 30px); font-weight: 800; letter-spacing: -.02em; margin-bottom: 10px; }
.rules-hero p { color: var(--text-2); font-size: 15px; max-width: 640px; margin: 0 auto; }
/* 左对齐变体（发行页页头） */
.rules-hero--left { text-align: left; padding: 20px 0 10px; }
.rules-hero--left p { max-width: none; margin: 0; }

.rules-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 16px; }
.rule-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--r-lg); padding: 22px; box-shadow: var(--shadow-sm); }
.rule-card__icon { font-size: 28px; margin-bottom: 10px; }
.rule-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.rule-card p { font-size: 13px; color: var(--text-2); line-height: 1.65; }

.rules-step { display: flex; gap: 14px; align-items: flex-start; padding: 14px 0; border-bottom: 1px solid var(--border); }
.rules-step:last-child { border-bottom: none; }
.rules-step__num { flex-shrink: 0; width: 30px; height: 30px; border-radius: 50%; background: var(--primary-grad); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 14px; }
.rules-step__body p { font-size: 13px; color: var(--text-2); margin-top: 4px; }

.callout {
  background: var(--primary-soft); border: 1px solid rgba(91,75,224,.2);
  border-radius: var(--r-md); padding: 16px 18px; margin: 16px 0;
  font-size: 13px; color: var(--text-2);
}
.callout strong { color: var(--text); }

/* ───────── 页脚 ───────── */
.footer {
  text-align: center; padding: 30px 24px;
  color: var(--muted); font-size: 13px;
}
.footer a { color: var(--muted); }
.footer p + p { margin-top: 6px; }

/* 规则页：注意事项列表 / 底部 CTA */
.notes-list { font-size: 13px; color: var(--text-2); line-height: 2; padding-left: 20px; margin-top: 8px; }
.page-cta { text-align: center; margin: 30px 0; }

/* ───────── 提示条（替代 alert）───────── */
.toast-wrap {
  position: fixed; left: 50%; transform: translateX(-50%);
  top: calc(70px + env(safe-area-inset-top, 0px));
  z-index: 300;
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  width: max-content; max-width: min(92vw, 440px);
  pointer-events: none;
}
.toast {
  padding: 10px 16px; border-radius: 12px;
  background: rgba(21,19,44,.94); color: #fff;
  font-size: 13px; line-height: 1.5; text-align: center;
  white-space: pre-line; word-break: break-word;
  box-shadow: var(--shadow-lg);
  animation: toast-in .18s ease;
}
.toast--ok { background: rgba(5,150,105,.95); }
.toast--err { background: rgba(220,38,38,.95); }
.toast--out { opacity: 0; transition: opacity .2s; }
@keyframes toast-in { from { opacity: 0; transform: translateY(-8px); } }

/* ───────── 加载骨架屏 ───────── */
.skeleton {
  height: 82px; border-radius: var(--r-md);
  background: linear-gradient(90deg, var(--bg) 25%, var(--border) 37%, var(--bg) 63%);
  background-size: 400% 100%;
  animation: shimmer 1.4s ease infinite;
}
@keyframes shimmer { from { background-position: 100% 0; } to { background-position: 0 0; } }

/* ───────── 规格表 ───────── */
.table-wrap { overflow-x: auto; margin-top: 8px; }
.spec-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.spec-table th, .spec-table td { padding: 11px 10px; text-align: left; }
.spec-table th { color: var(--text-2); font-weight: 600; }
.spec-table tr { border-bottom: 1px solid var(--border); }
.spec-table tr:last-child { border-bottom: none; }

/* 三列规则卡（手机自动堆叠，见响应式） */
.rules-grid--3 { grid-template-columns: repeat(3, 1fr); }
.rule-card--tight { padding: 16px; }

/* ───────── 鼠标悬停效果（触屏不生效，避免 tap 后样式粘滞）───────── */
@media (hover: hover) {
  a:hover { text-decoration: underline; }
  .sidebar a:hover { text-decoration: none; } /* 主菜单不做下划线 */
  .btn--net:hover { background: var(--primary-soft); color: var(--primary); }
  .btn--primary:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(91,75,224,.4); }
  .btn--ghost:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-soft); }
  .icon-btn:hover { border-color: var(--primary); color: var(--primary); }
  .royalty-item button:hover { background: rgba(239,68,68,.08); border-color: var(--danger); }
  .track:hover { border-color: var(--primary); box-shadow: var(--shadow-sm); transform: translateY(-1px); }
}

/* ───────── 响应式 ───────── */

/* ≤900px：侧栏收为抽屉，汉堡唤出 */
@media (max-width: 900px) {
  .sidebar {
    transform: translateX(-100%); transition: transform .25s ease;
    box-shadow: var(--shadow-lg);
  }
  .sidebar.is-open { transform: none; }
  .shell__main { margin-left: 0; }
  .topbar .nav-toggle { display: inline-flex; } /* 小屏显示汉堡，覆盖大屏隐藏规则 */
  .topbar { height: auto; min-height: var(--topbar-h); padding: 8px 14px; }
  #chainBadge { display: none; }   /* 小屏隐藏链状态，节省顶栏空间 */
  .topbar__right { flex-wrap: nowrap; gap: 6px; }
  .topbar .icon-btn { width: 40px; height: 40px; font-size: 14px; } /* 触控区 ≥40px */
  .topbar__wallet { padding: 9px 12px; font-size: 13px; flex: 0 0 auto; } /* 钱包按钮常驻顶栏 */
}

/* 平板及以下 */
@media (max-width: 768px) {
  .container { padding: 20px 16px 50px; }
  .card { padding: 20px; }
  .hero { gap: 38px; }
  .rules-grid { grid-template-columns: repeat(2, 1fr); }
  .rules-grid--3 { grid-template-columns: 1fr; }
}

/* 手机 */
@media (max-width: 520px) {
  .container { padding: 14px 16px 44px; }
  .card { padding: 18px; border-radius: 18px; margin-bottom: 16px; }
  .card__head { flex-wrap: wrap; gap: 8px; }

  /* ── 发行页 Hero：唱片居中堆叠 ── */
  .hero { flex-direction: column; gap: 28px; text-align: center; padding: 4px 0 22px; }
  .hero__text .muted { margin-left: auto; margin-right: auto; }
  .hero__actions { flex-direction: column; align-items: stretch; width: 100%; max-width: 320px; margin: 0 auto; }
  .hero__actions .btn { width: 100%; text-align: center; }
  .vinyl { width: 200px; height: 200px; }
  .vinyl__label { width: 76px; height: 76px; }
  .vinyl__label-fallback { font-size: 26px; }
  .vinyl__groove { inset: 22px; }
  .vinyl__groove--2 { inset: 40px; }
  .vinyl__groove--3 { inset: 58px; }
  .tonearm__arm { width: 92px; }
  .tonearm__head { top: 34px; }

  /* ── 表单：触摸区域 ≥44px ── */
  .form { gap: 14px; }
  .form__row input[type="text"],
  .form__row input[type="number"],
  .form__row input[type="file"],
  .form__row textarea,
  .form__row select {
    padding: 12px 14px; font-size: 16px; min-height: 46px; /* 16px 防止 iOS 聚焦缩放 */
  }
  .form__row label { font-size: 12px; }
  .form__row--2 { flex-direction: column; gap: 14px; }
  .form__actions { flex-direction: column; align-items: stretch; gap: 10px; }
  .form__actions .btn { width: 100%; padding: 12px; font-size: 15px; }
  .checkbox-row { font-size: 12px; line-height: 1.5; }
  .checkbox-row input[type="checkbox"] { width: 20px; height: 20px; }

  /* ── 版税分配：换行堆叠 ── */
  .royalty-item { flex-wrap: wrap; gap: 6px; }
  .royalty-item input { flex: 1 1 100%; }
  .royalty-item input[type="number"] { max-width: none; flex: 0 0 40%; }
  .royalty-item button { padding: 10px 12px; font-size: 13px; flex: 0 0 auto; min-height: 44px; }

  /* ── 曲目卡片：窄屏下操作区独占一行，标题允许折行 ── */
  .track { padding: 12px 14px; gap: 10px; border-radius: 14px; flex-wrap: wrap; }
  .track__icon, .track__cover { width: 44px; height: 44px; border-radius: 10px; }
  .track__icon { font-size: 20px; }
  .track__title { font-size: 14px; white-space: normal; overflow-wrap: anywhere; }
  .track__title .tag { white-space: nowrap; }
  .track__meta { font-size: 11px; gap: 4px 10px; }
  .track__meta span { white-space: nowrap; }
  .track__actions { flex: 1 1 100%; justify-content: flex-end; }
  .track__actions .btn { min-height: 38px; }

  /* ── 曲库工具栏：搜索 ── */
  .library-toolbar { flex-wrap: wrap; }
  .search-input { min-height: 44px; flex: 1 1 100%; font-size: 16px; }

  /* ── 创作者面板 ── */
  .creator__grid { gap: 8px; }
  .creator__num { font-size: 18px; }
  .creator__row { font-size: 12px; padding: 9px 10px; }

  /* ── 迷你播放条 ── */
  .icon-btn { width: 44px; height: 44px; font-size: 15px; }
  .mini {
    left: 8px; right: 8px; width: auto; transform: none;
    padding: 8px 10px; gap: 10px; border-radius: 14px;
  }
  .mini__controls { gap: 4px; }
  .mini__btn { width: 40px; height: 40px; }
  .mini__btn--play { width: 46px; height: 46px; }

  /* ── 我的曲库抽屉 ── */
  .sheet__panel { max-height: 82vh; border-radius: 18px 18px 0 0; }
  .queue-item { padding: 12px 14px; gap: 10px; min-height: 56px; }
  .queue-item__icon { width: 44px; height: 44px; }

  /* ── 规则页 ── */
  .rules-hero { padding: 20px 0 8px; }
  .rules-hero p { font-size: 13px; }
  .rules-grid { grid-template-columns: 1fr; }
  .rule-card { padding: 18px; }
  .rules-step { gap: 10px; }
  .callout { padding: 12px 14px; font-size: 12px; }

  /* ── 页脚 ── */
  .footer { padding: 20px 14px; font-size: 12px; }
}

/* 超小屏 */
@media (max-width: 360px) {
  .track__meta { gap: 8px; }
  .mini__btn { width: 36px; height: 36px; }
  .mini__btn--play { width: 42px; height: 42px; }
  .vinyl { width: 170px; height: 170px; }
  .vinyl__label { width: 66px; height: 66px; }
}

/* ───────── 订阅弹层 ───────── */
.modal {
  position: fixed; inset: 0; z-index: 400;
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
  background: rgba(21,19,44,.5);
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
}
.modal[hidden] { display: none; }
.modal__box {
  width: 100%; max-width: 420px;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--r-lg);
  padding: 24px; box-shadow: var(--shadow-lg);
  animation: toast-in .18s ease;
}
.modal__box h3 { margin: 0 0 6px; font-size: 17px; }
.sub-opts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 18px 0; }
.sub-opt {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 14px 8px; cursor: pointer;
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--r-md);
  color: var(--text); font-family: inherit; transition: all .15s;
}
.sub-opt__m { font-size: 22px; font-weight: 700; color: var(--primary); }
.sub-opt__unit { font-size: 12px; color: var(--text-2); }
.sub-opt__price { font-size: 11px; color: var(--accent); font-weight: 600; margin-top: 4px; }
@media (hover: hover) {
  .sub-opt:hover { border-color: var(--primary); background: var(--primary-soft); transform: translateY(-1px); }
}