/* ============ 主题变量 ============ */
:root {
  --brand: #7c5cff;
  --brand-2: #ff4d6d;
  --radius: 14px;
  --radius-sm: 10px;
  --topbar-h: 62px;
  --sidebar-w: 232px;
  --shadow: 0 10px 30px rgba(0, 0, 0, .28);
  --ease: cubic-bezier(.4, 0, .2, 1);
}

:root[data-theme="dark"] {
  --bg: #0b0d13;
  --bg-elev: #141926;
  --bg-elev-2: #1b2131;
  --text: #eef1f8;
  --text-dim: #98a2b8;
  --border: #262d40;
  --hover: rgba(255, 255, 255, .07);
  --scrim: rgba(0, 0, 0, .55);
  --skeleton: #1b2131;
}

:root[data-theme="light"] {
  --bg: #f5f6fa;
  --bg-elev: #ffffff;
  --bg-elev-2: #eef0f7;
  --text: #131722;
  --text-dim: #5a6478;
  --border: #e2e5ef;
  --hover: rgba(15, 20, 35, .06);
  --scrim: rgba(20, 24, 40, .38);
  --skeleton: #e9ebf3;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; height: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.6 "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  transition: background .25s var(--ease), color .25s var(--ease);
}

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }
svg { width: 22px; height: 22px; fill: currentColor; display: block; }
::selection { background: var(--brand); color: #fff; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 8px; border: 3px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

/* ============ 顶栏 ============ */
.topbar {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--topbar-h);
  z-index: 60;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 18px;
  background: var(--bg-elev);
  background: color-mix(in srgb, var(--bg-elev) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--border);
}

.brand { display: flex; align-items: center; gap: 9px; flex: none; }

.brand-mark {
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border-radius: 11px;
  color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  box-shadow: 0 4px 14px color-mix(in srgb, var(--brand) 45%, transparent);
}
.brand-mark svg { width: 18px; height: 18px; }
.brand-text { font-size: 18px; font-weight: 700; letter-spacing: .5px; }

.searchbar {
  flex: 1 1 auto;
  max-width: 560px;
  display: flex;
  align-items: center;
  height: 40px;
  padding: 0 4px 0 16px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-elev-2);
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.searchbar:focus-within {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 22%, transparent);
}
.searchbar input {
  flex: 1; min-width: 0; height: 100%;
  border: 0; outline: 0; background: none;
  color: var(--text); font-size: 14px;
}
.searchbar input::placeholder { color: var(--text-dim); }
.searchbar button {
  flex: none;
  width: 36px; height: 36px;
  display: grid; place-items: center;
  border: 0; border-radius: 50%;
  background: none; color: var(--text-dim); cursor: pointer;
}
.searchbar button:hover { color: var(--brand); }

.topbar-slogan {
  flex: none;
  white-space: nowrap;
  font-size: 12px;
  letter-spacing: .3px;
  color: var(--text-dim);
}
.topbar-slogan::before {
  content: '';
  display: inline-block;
  width: 6px; height: 6px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--brand);
  vertical-align: 1px;
}

.topbar-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; flex: none; }

.btn {
  display: inline-flex; align-items: center; gap: 7px;
  height: 38px; padding: 0 15px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-elev-2);
  font-size: 14px; cursor: pointer; white-space: nowrap;
  transition: background .18s var(--ease), transform .18s var(--ease), border-color .18s var(--ease);
}
.btn:hover { background: var(--hover); border-color: var(--brand); }
.btn:active { transform: scale(.97); }
.btn svg { width: 18px; height: 18px; }
.btn-primary { border: 0; color: #fff; background: linear-gradient(135deg, var(--brand), var(--brand-2)); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-ghost { background: transparent; }
.btn.on { color: var(--brand); border-color: var(--brand); }

.icon-btn {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  border: 0; border-radius: 50%;
  background: none; color: var(--text); cursor: pointer;
  transition: background .18s var(--ease);
}
.icon-btn:hover { background: var(--hover); }

/* ============ 侧边栏 ============ */
.sidebar {
  position: fixed;
  top: var(--topbar-h); bottom: 0; left: 0;
  width: var(--sidebar-w);
  z-index: 50;
  overflow-y: auto;
  padding: 16px 12px 24px;
  background: var(--bg);
  border-right: 1px solid var(--border);
  transition: transform .26s var(--ease);
}

.nav-item {
  display: flex; align-items: center; gap: 12px;
  height: 44px; padding: 0 14px;
  border-radius: var(--radius-sm);
  font-size: 15px; color: var(--text);
  transition: background .16s var(--ease), color .16s var(--ease);
}
.nav-item svg { width: 20px; height: 20px; opacity: .85; }
.nav-item:hover { background: var(--hover); }
.nav-item.active {
  background: var(--hover);
  background: color-mix(in srgb, var(--brand) 16%, transparent);
  color: var(--brand); font-weight: 600;
}

.nav-title {
  margin: 20px 14px 8px;
  font-size: 12px; font-weight: 600; letter-spacing: 1.5px;
  color: var(--text-dim); text-transform: uppercase;
}
.nav-cats { display: flex; flex-direction: column; gap: 2px; }
.nav-cats .nav-item { height: 38px; font-size: 14px; }
.nav-cats .nav-item svg { display: none; }

.sidebar-foot { margin: 24px 14px 0; font-size: 12px; line-height: 1.7; color: var(--text-dim); }

.scrim { position: fixed; inset: 0; z-index: 45; background: var(--scrim); }

/* ============ 主区域 ============ */
main {
  padding: calc(var(--topbar-h) + 22px) 26px 60px calc(var(--sidebar-w) + 26px);
  min-height: 100vh;
  min-height: 100dvh;   /* 手机地址栏收起/展开时始终铺满可视区 */
}
.view { animation: fade .28s var(--ease); }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.section-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin: 0 0 14px; }
.section-head h2 { margin: 0; font-size: 19px; }
.section-head .more { font-size: 13px; color: var(--text-dim); white-space: nowrap; }
.section-head .more:hover { color: var(--brand); }
.block { margin-bottom: 34px; }

/* 分类 chips */
.chips { display: flex; gap: 9px; overflow-x: auto; padding: 2px 0 14px; scrollbar-width: none; }
.chips::-webkit-scrollbar { display: none; }
.chip {
  flex: none;
  height: 34px; padding: 0 16px;
  display: inline-flex; align-items: center;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg-elev);
  font-size: 14px; color: var(--text-dim);
  cursor: pointer; white-space: nowrap;
  transition: all .18s var(--ease);
}
.chip:hover { color: var(--text); border-color: var(--brand); }
.chip.on {
  color: #fff; border-color: transparent;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
}

/* ============ Hero ============ */
.hero {
  position: relative;
  display: block;
  border-radius: 18px;
  overflow: hidden;
  background: var(--skeleton);
  aspect-ratio: 21 / 9;
  min-height: 240px;
  margin-bottom: 30px;
  box-shadow: var(--shadow);
}
.hero img { width: 100%; height: 100%; object-fit: cover; display: block; }
.hero::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(0, 0, 0, .82) 0%, rgba(0, 0, 0, .45) 45%, rgba(0, 0, 0, .12) 100%);
}
.hero-body {
  position: absolute; inset: auto 0 0 0; z-index: 2;
  padding: 28px 30px;
  color: #fff;
  display: flex; align-items: flex-end; gap: 20px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 10px; margin-bottom: 10px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  font-size: 12px; font-weight: 600;
}
.hero-title { margin: 0 0 8px; font-size: clamp(20px, 2.6vw, 32px); line-height: 1.25; }
.hero-meta { font-size: 13px; opacity: .8; }
.hero-play {
  flex: none;
  width: 62px; height: 62px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, .16);
  border: 1px solid rgba(255, 255, 255, .35);
  backdrop-filter: blur(6px);
  transition: transform .2s var(--ease), background .2s var(--ease);
}
.hero:hover .hero-play { transform: scale(1.08); background: rgba(255, 255, 255, .28); }
.hero-play svg { width: 28px; height: 28px; }

/* ============ 视频网格 / 卡片 ============ */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(258px, 1fr));
  gap: 20px 16px;
}

.card { display: block; cursor: pointer; }
.card-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--skeleton);
}
.card-thumb img, .card-thumb video {
  width: 100%; height: 100%;
  object-fit: cover; display: block;
  transition: transform .35s var(--ease), opacity .3s var(--ease);
}
.card:hover .card-thumb img { transform: scale(1.06); }
.card-thumb video { position: absolute; inset: 0; opacity: 0; }
.card-thumb.previewing video { opacity: 1; }
.card-thumb.previewing img { opacity: 0; }

.card-dur {
  position: absolute; right: 8px; bottom: 8px; z-index: 3;
  padding: 2px 7px;
  border-radius: 6px;
  background: rgba(0, 0, 0, .78);
  color: #fff; font-size: 12px; font-variant-numeric: tabular-nums;
}
.card-progress {
  position: absolute; left: 0; bottom: 0; z-index: 3;
  height: 4px; background: var(--brand-2);
}
.card-badge-new {
  position: absolute; left: 8px; top: 8px; z-index: 3;
  padding: 2px 8px; border-radius: 6px;
  background: var(--brand);
  color: #fff; font-size: 11px; font-weight: 600;
}
.card-play {
  position: absolute; inset: 0; z-index: 2;
  display: grid; place-items: center;
  background: rgba(0, 0, 0, .25);
  opacity: 0; transition: opacity .2s var(--ease);
}
.card:hover .card-play { opacity: 1; }
.card-play span {
  width: 52px; height: 52px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, .92);
  color: #111;
}
.card-play svg { width: 24px; height: 24px; }

.card-body { display: flex; gap: 11px; padding: 11px 2px 0; }
.avatar {
  flex: none;
  width: 36px; height: 36px;
  border-radius: 50%;
  display: grid; place-items: center;
  color: #fff; font-size: 15px; font-weight: 600;
}
.card-info { min-width: 0; flex: 1; }
.card-title {
  margin: 0 0 4px;
  font-size: 15px; font-weight: 600; line-height: 1.4;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
  overflow: hidden;
}
.card:hover .card-title { color: var(--brand); }
.card-meta { font-size: 13px; color: var(--text-dim); }
.card-meta .dot { margin: 0 5px; opacity: .6; }

.card-remove {
  position: absolute; right: 8px; top: 8px; z-index: 4;
  width: 28px; height: 28px;
  display: none; place-items: center;
  border: 0; border-radius: 50%;
  background: rgba(0, 0, 0, .7); color: #fff; cursor: pointer;
}
.card:hover .card-remove { display: grid; }
.card-remove svg { width: 14px; height: 14px; }

/* 横向滚动行 */
.rail { display: flex; gap: 16px; overflow-x: auto; padding-bottom: 8px; scroll-snap-type: x proximity; }
.rail > .card { flex: 0 0 260px; scroll-snap-align: start; }

/* 空状态 */
.empty {
  padding: 70px 20px;
  text-align: center;
  color: var(--text-dim);
}
.empty svg { width: 56px; height: 56px; margin: 0 auto 14px; opacity: .35; }
.empty h3 { margin: 0 0 6px; font-size: 17px; color: var(--text); }
.empty p { margin: 0; font-size: 14px; }

/* ============ 播放页布局 ============ */
.watch-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 366px;
  gap: 24px;
  align-items: start;
}

/* ============ 播放器 ============ */
.player {
  position: relative;
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  user-select: none;
  box-shadow: var(--shadow);
}
/* 全屏时铺满屏幕。带前缀的伪类必须单独成条：选择器列表里只要有一个伪类
   不被当前浏览器识别，整条规则都会被丢弃。 */
.player:fullscreen {
  border-radius: 0; aspect-ratio: auto;
  width: 100vw; height: 100vh; height: 100dvh;
}
.player:-webkit-full-screen {
  border-radius: 0; aspect-ratio: auto;
  width: 100vw; height: 100vh; height: 100dvh;
}
.player video { width: 100%; height: 100%; display: block; background: #000; object-fit: contain; }
.player.hide-cursor { cursor: none; }

/* 中央状态 */
.p-center {
  position: absolute; inset: 0; z-index: 3;
  display: grid; place-items: center;
  pointer-events: none;
}
.p-bigplay {
  width: 74px; height: 74px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: rgba(0, 0, 0, .5);
  border: 2px solid rgba(255, 255, 255, .8);
  color: #fff;
  pointer-events: auto;
  cursor: pointer;
  transition: transform .2s var(--ease), opacity .2s var(--ease);
}
.p-bigplay:hover { transform: scale(1.08); }
.p-bigplay svg { width: 34px; height: 34px; }
.p-bigplay[hidden] { display: none; }

.spinner {
  width: 46px; height: 46px;
  border: 3px solid rgba(255, 255, 255, .25);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
.spinner[hidden] { display: none; }
@keyframes spin { to { transform: rotate(360deg); } }

.p-error {
  position: absolute; inset: 0; z-index: 6;
  display: none;
  flex-direction: column; align-items: center; justify-content: center;
  gap: 14px;
  background: rgba(0, 0, 0, .82);
  color: #fff; text-align: center; padding: 24px;
}
.p-error.show { display: flex; }
.p-error svg { width: 44px; height: 44px; opacity: .8; }

.p-resume {
  position: absolute; left: 14px; top: 14px; z-index: 5;
  display: none; align-items: center; gap: 12px;
  max-width: calc(100% - 28px);
  padding: 10px 14px;
  border-radius: 10px;
  background: rgba(12, 14, 20, .88);
  backdrop-filter: blur(8px);
  color: #fff; font-size: 13px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, .4);
}
.p-resume.show { display: flex; }
.p-resume button {
  border: 0; border-radius: 6px;
  padding: 5px 10px;
  background: var(--brand); color: #fff;
  font-size: 13px; cursor: pointer;
}
.p-resume .close { background: rgba(255, 255, 255, .16); }

.p-toast {
  position: absolute; left: 50%; top: 50%; z-index: 5;
  transform: translate(-50%, -50%);
  padding: 10px 18px;
  border-radius: 10px;
  background: rgba(0, 0, 0, .72);
  color: #fff; font-size: 15px;
  opacity: 0; transition: opacity .2s var(--ease);
  pointer-events: none;
}
.p-toast.show { opacity: 1; }

/* 控制栏 */
.p-controls {
  position: absolute; inset: auto 0 0 0; z-index: 4;
  padding: 34px 14px 10px;
  background: linear-gradient(transparent, rgba(0, 0, 0, .78) 40%, rgba(0, 0, 0, .92));
  color: #fff;
  opacity: 1;
  transform: translateY(0);
  transition: opacity .22s var(--ease), transform .22s var(--ease);
}
.p-controls.hidden { opacity: 0; transform: translateY(14px); pointer-events: none; }

.p-bar-row {
  position: relative;
  height: 16px;
  display: flex; align-items: center;
  cursor: pointer;
  touch-action: none;
}
.p-bar {
  position: relative;
  width: 100%; height: 4px;
  border-radius: 4px;
  background: rgba(255, 255, 255, .28);
  transition: height .15s var(--ease);
}
.p-bar-row:hover .p-bar, .p-bar-row.dragging .p-bar { height: 7px; }
.p-buffered, .p-played {
  position: absolute; left: 0; top: 0; bottom: 0;
  border-radius: 4px;
}
.p-buffered { background: rgba(255, 255, 255, .45); }
.p-played { background: linear-gradient(90deg, var(--brand), var(--brand-2)); }
.p-thumb {
  position: absolute; top: 50%;
  width: 13px; height: 13px;
  margin-left: -6.5px;
  border-radius: 50%;
  background: #fff;
  transform: translateY(-50%) scale(0);
  transition: transform .15s var(--ease);
  box-shadow: 0 1px 5px rgba(0, 0, 0, .5);
}
.p-bar-row:hover .p-thumb, .p-bar-row.dragging .p-thumb { transform: translateY(-50%) scale(1); }
.p-tip {
  position: absolute; bottom: 20px;
  transform: translateX(-50%);
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(0, 0, 0, .85);
  font-size: 12px; font-variant-numeric: tabular-nums;
  white-space: nowrap;
  opacity: 0; transition: opacity .15s var(--ease);
  pointer-events: none;
}
.p-bar-row:hover .p-tip { opacity: 1; }

.p-btns {
  display: flex; align-items: center; gap: 4px;
  height: 44px;
}
.p-btns .icon-btn {
  width: 38px; height: 38px;
  color: #fff;
}
.p-btns .icon-btn:hover { background: rgba(255, 255, 255, .16); }
.p-btns .icon-btn svg { width: 21px; height: 21px; }
.p-btns .p-text {
  width: auto;
  padding: 0 10px;
  font-size: 13px; font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.p-time {
  margin: 0 6px;
  font-size: 13px; font-variant-numeric: tabular-nums;
  color: rgba(255, 255, 255, .9);
  white-space: nowrap;
}
.p-time .cur { font-weight: 600; }
.p-spacer { flex: 1; }

.p-vol { display: flex; align-items: center; }
.p-vol-bar {
  width: 0; height: 4px; margin-right: 0;
  border-radius: 4px;
  background: rgba(255, 255, 255, .28);
  overflow: hidden;
  opacity: 0;
  transition: width .2s var(--ease), opacity .2s var(--ease), margin .2s var(--ease);
  touch-action: none;
  cursor: pointer;
}
.p-vol:hover .p-vol-bar, .p-vol-bar.active { width: 74px; opacity: 1; margin-right: 8px; }
.p-vol-fill { height: 100%; background: #fff; }

.p-menu-wrap { position: relative; }
.p-menu {
  position: absolute; bottom: 46px; right: 0;
  min-width: 116px;
  padding: 6px;
  border-radius: 10px;
  background: rgba(16, 18, 26, .96);
  border: 1px solid rgba(255, 255, 255, .12);
  box-shadow: 0 8px 26px rgba(0, 0, 0, .5);
  display: none;
}
.p-menu.open { display: block; }
.p-menu button {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  width: 100%;
  padding: 8px 12px;
  border: 0; border-radius: 7px;
  background: none; color: #fff;
  font-size: 13px; cursor: pointer;
}
.p-menu button:hover { background: rgba(255, 255, 255, .12); }
.p-menu button.on { color: var(--brand); font-weight: 600; }

/* ============ 播放页信息 ============ */
.watch-main { min-width: 0; }
.watch-title { margin: 16px 0 8px; font-size: 21px; line-height: 1.35; }
.watch-meta { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; font-size: 13px; color: var(--text-dim); }
.watch-meta .dot { margin: 0 3px; opacity: .6; }

.watch-actions {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  margin: 14px 0 18px;
}
.watch-actions .btn { border-radius: 999px; }
.watch-actions .btn svg { width: 17px; height: 17px; }

.author-row {
  display: flex; align-items: center; gap: 12px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elev);
}
.author-row .avatar { width: 44px; height: 44px; font-size: 17px; }
.author-name { font-weight: 600; }
.author-sub { font-size: 12px; color: var(--text-dim); }
.author-row .btn { margin-left: auto; }

.desc {
  margin-top: 14px;
  padding: 14px 16px;
  border-radius: var(--radius);
  background: var(--bg-elev);
  border: 1px solid var(--border);
  font-size: 14px; white-space: pre-wrap;
  max-height: 92px; overflow: hidden;
  position: relative;
  cursor: pointer;
}
.desc.open { max-height: none; }
.desc-toggle { margin-top: 6px; font-size: 13px; color: var(--brand); cursor: pointer; display: inline-block; }

.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.tag {
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  font-size: 13px; color: var(--text-dim);
  cursor: pointer;
}
.tag:hover { color: var(--brand); border-color: var(--brand); }

/* 推荐列表 */
.rec-list { display: flex; flex-direction: column; gap: 12px; }
.rec {
  display: flex; gap: 10px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  padding: 4px;
  transition: background .18s var(--ease);
}
.rec:hover { background: var(--hover); }
.rec-thumb {
  flex: none;
  width: 158px; aspect-ratio: 16 / 9;
  border-radius: 9px;
  overflow: hidden;
  background: var(--skeleton);
  position: relative;
}
.rec-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.rec-thumb .card-dur { right: 6px; bottom: 6px; font-size: 11px; }
.rec-title {
  margin: 0 0 4px;
  font-size: 14px; font-weight: 600; line-height: 1.4;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.rec-meta { font-size: 12px; color: var(--text-dim); }

/* ============ 用户区 ============ */
.user-area { display: flex; align-items: center; gap: 8px; }
.user-chip {
  display: flex; align-items: center; gap: 8px;
  height: 38px; padding: 0 6px 0 6px;
  border-radius: 999px;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  font-size: 14px;
}
.user-chip .avatar { width: 28px; height: 28px; font-size: 13px; }
.user-name { max-width: 120px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.user-chip .icon-btn { width: 28px; height: 28px; }
.user-chip .icon-btn svg { width: 17px; height: 17px; }

/* 未登录时隐藏主导航、搜索与上传，只保留登录页 */
body.guest .sidebar { display: none; }
body.guest main { padding-left: 26px; }
body.guest .searchbar,
body.guest .topbar-slogan,
body.guest .promo-entry,
body.guest #refreshBtn { display: none; }
@media (max-width: 900px) {
  body.guest main { padding-left: 16px; }
}

/* ============ 登录 / 注册 ============ */
.auth-wrap {
  min-height: calc(100vh - var(--topbar-h) - 120px);
  min-height: calc(100dvh - var(--topbar-h) - 120px);
  display: grid; place-items: center;
  padding: 20px;
}
.auth-card {
  width: 100%; max-width: 400px;
  padding: 32px 30px 26px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--bg-elev);
  box-shadow: var(--shadow);
}
.auth-head { text-align: center; margin-bottom: 24px; }
.auth-logo {
  width: 54px; height: 54px; margin: 0 auto 14px;
  display: grid; place-items: center;
  border-radius: 16px; color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  box-shadow: 0 8px 22px color-mix(in srgb, var(--brand) 40%, transparent);
}
.auth-logo svg { width: 26px; height: 26px; }
.auth-head h1 { margin: 0 0 6px; font-size: 22px; }
.auth-head p { margin: 0; font-size: 13px; color: var(--text-dim); }

.field { margin-bottom: 14px; }
.field label { display: block; margin-bottom: 6px; font-size: 13px; color: var(--text-dim); }
.field input {
  width: 100%; height: 44px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-elev-2);
  color: var(--text);
  font-size: 15px;
  outline: 0;
  transition: border-color .18s var(--ease), box-shadow .18s var(--ease);
}
.field input:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand) 20%, transparent);
}
.field .hint { margin-top: 6px; font-size: 12px; color: var(--text-dim); }

.auth-error {
  display: none;
  margin-bottom: 14px; padding: 9px 12px;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--brand-2) 16%, transparent);
  border: 1px solid color-mix(in srgb, var(--brand-2) 45%, transparent);
  color: var(--brand-2);
  font-size: 13px;
}
.auth-error.show { display: block; }

.auth-invite {
  margin-bottom: 14px; padding: 10px 12px;
  border: 1px solid color-mix(in srgb, var(--brand) 35%, transparent);
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--brand) 10%, transparent);
  font-size: 13px;
}
.auth-invite b { color: var(--brand); }

.auth-submit { width: 100%; height: 46px; justify-content: center; font-size: 15px; }
.auth-submit[disabled] { opacity: .6; cursor: default; }

.auth-foot { margin-top: 18px; text-align: center; font-size: 14px; color: var(--text-dim); }
.auth-foot a { color: var(--brand); font-weight: 600; cursor: pointer; }

/* 顶栏推广入口：链接式文字 + 下划线，位于「刷新视频库」左侧 */
.promo-entry {
  flex: none;
  white-space: nowrap;
  font-size: 13px;
  color: var(--brand);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.promo-entry:hover { color: var(--brand-2); }

/* ============ 推广中心 ============ */
.promo-layout {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}
.promo-menu {
  position: sticky;
  top: calc(var(--topbar-h) + 20px);
  padding: 16px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elev);
}
.promo-menu-title { margin: 0 0 14px; padding: 0 10px; font-size: 16px; }
.promo-menu-item {
  display: block;
  padding: 10px 12px;
  margin-bottom: 4px;
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-size: 14px;
  cursor: pointer;
}
.promo-menu-item:hover { background: var(--bg-elev-2); color: var(--text); }
.promo-menu-item.on {
  background: color-mix(in srgb, var(--brand) 16%, transparent);
  color: var(--brand);
  font-weight: 600;
}
.promo-menu-note {
  margin: 16px 10px 0;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  font-size: 12px; line-height: 1.7;
  color: var(--text-dim);
}
.promo-card {
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-elev);
}
.promo-card h2 { margin: 0 0 8px; font-size: 19px; }
.promo-sub { margin: 0 0 20px; font-size: 13px; color: var(--text-dim); }
.promo-note { margin: 16px 0 0; font-size: 12px; line-height: 1.7; color: var(--text-dim); }
.promo-note b { color: var(--brand); }
.promo-link-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.promo-link-row code {
  flex: 1 1 320px; min-width: 0;
  padding: 11px 13px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-elev-2);
  color: var(--text);
  font-size: 12px;
  word-break: break-all;
}
.promo-qr {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.promo-qr h3 { margin: 0 0 12px; font-size: 15px; }
.promo-qr-box {
  display: inline-block;
  padding: 10px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  line-height: 0;
}
.promo-qr-box svg { display: block; width: 168px; height: 168px; }
.promo-qr .btn { margin-top: 14px; }
.promo-empty {
  padding: 34px 20px;
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  text-align: center;
}
.promo-empty h3 { margin: 0 0 8px; font-size: 15px; }
.promo-empty p { margin: 0; font-size: 13px; color: var(--text-dim); }
.promo-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; }
.promo-stat {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-elev-2);
}
.promo-stat span { display: block; margin-bottom: 10px; font-size: 12px; color: var(--text-dim); }
.promo-stat b { font-size: 24px; }
.promo-invite-list {
  margin-top: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.promo-invite-item {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 12px 14px;
  font-size: 13px;
}
.promo-invite-item + .promo-invite-item { border-top: 1px solid var(--border); }
.promo-invite-item time { color: var(--text-dim); font-size: 12px; white-space: nowrap; }
.promo-earn-list {
  margin-top: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.promo-earn-item {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 12px 14px;
}
.promo-earn-item + .promo-earn-item { border-top: 1px solid var(--border); }
.promo-earn-item b { display: block; font-size: 13px; }
.promo-earn-item span { display: block; margin-top: 4px; font-size: 12px; color: var(--text-dim); }
.promo-earn-money { text-align: right; white-space: nowrap; }
.promo-earn-money b { color: var(--brand); font-size: 15px; }
.promo-earn-tag {
  display: inline-block; margin-left: 8px; padding: 1px 6px;
  border: 1px solid var(--border); border-radius: 999px;
  font-size: 11px; font-weight: 400; color: var(--text-dim);
}
.promo-withdraw-bar {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  margin: 16px 0 4px;
}
.promo-withdraw-bar .btn[disabled] { opacity: .55; cursor: default; }
.promo-withdraw-hint { font-size: 12px; color: var(--text-dim); }
.promo-section-title { margin: 22px 0 0; font-size: 15px; }
.promo-withdraw-list {
  margin-top: 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.promo-withdraw-item { padding: 12px 14px; }
.promo-withdraw-item + .promo-withdraw-item { border-top: 1px solid var(--border); }
.promo-withdraw-item b { display: block; font-size: 14px; color: var(--brand); }
.promo-withdraw-item span {
  display: block; margin-top: 4px; font-size: 12px;
  color: var(--text-dim); word-break: break-all;
}
.promo-form { display: grid; gap: 14px; max-width: 460px; }
.promo-form label { display: grid; gap: 7px; font-size: 13px; color: var(--text-dim); }
.promo-form input {
  height: 42px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-elev-2);
  color: var(--text);
  font-size: 14px;
  outline: 0;
}
.promo-form input:focus { border-color: var(--brand); }

/* ============ Toast ============ */

/* ============ Toast ============ */
.toasts {
  position: fixed; left: 50%; bottom: 28px; z-index: 200;
  transform: translateX(-50%);
  display: flex; flex-direction: column; gap: 8px;
  align-items: center;
  pointer-events: none;
}
.toast {
  padding: 10px 18px;
  border-radius: 10px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  font-size: 14px;
  animation: toastIn .22s var(--ease);
}
@keyframes toastIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }

/* ============ 响应式 ============ */
.only-mobile { display: none; }
/* 设置按钮只在手机端出现；PC 端右侧操作区保持原有平铺布局 */
.topbar-settings { display: none; }
.topbar-settings svg { fill: none; }

@media (max-width: 1180px) {
  .watch-layout { grid-template-columns: 1fr; }
  .topbar-slogan { display: none; }   /* 窄屏顶栏空间不足，隐藏说明文字 */
}

@media (max-width: 760px) {
  .promo-layout { grid-template-columns: 1fr; }
  .promo-menu { position: static; }
  .promo-menu nav { display: flex; flex-wrap: wrap; gap: 6px; }
  .promo-menu-item { margin-bottom: 0; }
}

@media (max-width: 900px) {
  :root { --sidebar-w: 0px; }
  .only-mobile { display: grid; }
  .sidebar { transform: translateX(-100%); width: 250px; background: var(--bg-elev); box-shadow: var(--shadow); }
  body.nav-open .sidebar { transform: none; }
  main { padding: calc(var(--topbar-h) + 16px) 16px 60px; }
  .brand-text, .hide-sm { display: none; }
  .searchbar { max-width: none; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 16px 12px; }
  .hero { aspect-ratio: 16 / 10; }
  .hero-body { padding: 18px; }
  .hero-play { width: 50px; height: 50px; }
  .hero-play svg { width: 22px; height: 22px; }
  .rec-thumb { width: 128px; }
  .watch-title { font-size: 18px; }
  .p-time { font-size: 12px; }
  .p-btns .icon-btn { width: 34px; height: 34px; }
}

@media (max-width: 560px) {
  .grid { grid-template-columns: 1fr; gap: 18px; }
  .card-thumb { border-radius: 10px; }
  .p-controls { padding: 26px 8px 6px; }
  .p-bigplay { width: 58px; height: 58px; }
  .p-bigplay svg { width: 26px; height: 26px; }
}

/* ============ 手机端：顶栏操作收进「设置」面板 ============
   PC（>900px）完全保持原样；<=900px 时顶栏只留 菜单 / 品牌 / 缩短的搜索栏 / 设置，
   原来的推广、刷新、主题、账号信息全部移入设置按钮展开的浮层，保证每个按钮都在屏内可点。 */
@media (max-width: 900px) {
  .topbar { gap: 10px; padding: 0 12px; }
  .topbar-settings { display: grid; flex: none; margin-left: auto; }
  .topbar-settings[aria-expanded="true"] { background: var(--hover); color: var(--brand); }

  /* 搜索栏只占剩余空间，不再把右侧操作挤出屏幕 */
  .searchbar { flex: 1 1 auto; min-width: 0; max-width: none; height: 36px; padding-left: 12px; }
  .searchbar input { font-size: 13px; }
  .searchbar button { width: 32px; height: 32px; }

  .topbar-actions {
    display: none;
    position: absolute;
    top: calc(var(--topbar-h) - 4px);
    right: 12px;
    width: min(280px, calc(100vw - 24px));
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    margin-left: 0;
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-elev);
    box-shadow: var(--shadow);
    z-index: 70;
    max-height: calc(100dvh - var(--topbar-h) - 16px);
    overflow-y: auto;
  }
  body.settings-open .topbar-actions { display: flex; }

  /* 面板内图标按钮改成整行「图标 + 文字」，好认也好点 */
  .topbar-actions > .icon-btn {
    width: 100%; height: 42px;
    display: flex; align-items: center; justify-content: flex-start;
    gap: 10px; padding: 0 12px;
    border-radius: 10px;
  }
  #refreshBtn::after { content: '刷新视频库'; font-size: 14px; }
  #themeBtn::after { content: '切换深浅主题'; font-size: 14px; }

  body:not(.guest) .topbar-actions .promo-entry {
    display: flex; align-items: center;
    width: 100%; height: 42px;
    padding: 0 12px;
    border-radius: 10px;
    font-size: 14px; text-decoration: none;
  }
  .topbar-actions > .icon-btn:hover,
  .topbar-actions .promo-entry:hover { background: var(--hover); }

  /* 账号区的最终布局见下方「手机端比例化尺寸体系」末尾（固定三行网格） */
  .topbar-actions .user-area { width: 100%; }
}

/* ============ 手机端比例化尺寸体系（仅 <=900px 生效，PC 规则不动） ============
   所有手机端尺寸统一由视口宽高（vmin / vw / dvh）经 clamp 推导，
   320px 小屏到平板横屏共用一套标尺，clamp 上下限避免极端屏幕失控。
   --topbar-h 在此重定义后，侧栏 / 主内容 / 弹层定位会自动联动。 */
@media (max-width: 900px) {
  /* 只允许横竖平移滚动：禁掉双指捏合缩放与双击缩放；PC 仍为 auto，行为不变。
     子元素上的 touch-action: none（播放器进度条等）按交集规则继续生效。 */
  html, body { touch-action: pan-x pan-y; }
  :root {
    --m-fs-xs: clamp(10px, 2.9vmin, 13px);
    --m-fs-sm: clamp(11px, 3.2vmin, 14px);
    --m-fs:    clamp(12px, 3.7vmin, 16px);
    --m-fs-md: clamp(14px, 4.1vmin, 18px);
    --m-fs-lg: clamp(16px, 4.8vmin, 21px);
    --m-fs-xl: clamp(19px, 5.8vmin, 26px);
    --m-pad:    clamp(10px, 3.1vmin, 18px);
    --m-pad-sm: clamp(6px, 1.9vmin, 11px);
    --m-gap:    clamp(6px, 1.9vmin, 12px);
    --m-gap-lg: clamp(10px, 3.1vmin, 18px);
    --m-btn-h:  clamp(34px, 10vmin, 44px);
    --m-icon:   clamp(17px, 5vmin, 24px);
    --m-avatar: clamp(26px, 7.6vmin, 36px);
    --m-radius: clamp(8px, 2.6vmin, 14px);
    --m-top:    clamp(48px, 13.5vmin, 60px);
    --m-side:   clamp(210px, 64vw, 270px);
    --m-thumb:  clamp(96px, 30vmin, 158px);
    --m-card:   clamp(150px, 44vmin, 240px);
    --m-panel:  clamp(230px, 72vw, 300px);
    --topbar-h: var(--m-top);
  }

  /* 基础 / 顶栏 */
  body { font-size: var(--m-fs); }
  .topbar { height: var(--m-top); gap: var(--m-gap); padding: 0 var(--m-pad); }
  .brand { gap: var(--m-pad-sm); }
  .brand-mark { width: clamp(28px, 8.5vmin, 36px); height: clamp(28px, 8.5vmin, 36px); border-radius: var(--m-radius); }
  .brand-mark svg { width: var(--m-icon); height: var(--m-icon); }
  .brand-text { font-size: var(--m-fs-lg); }
  .searchbar { height: clamp(32px, 9.5vmin, 40px); padding-left: var(--m-pad); }
  .searchbar input { font-size: var(--m-fs-sm); }
  .searchbar button { width: var(--m-btn-h); height: var(--m-btn-h); }
  .searchbar button svg { width: var(--m-icon); height: var(--m-icon); }
  .icon-btn { width: var(--m-btn-h); height: var(--m-btn-h); }
  .icon-btn svg { width: var(--m-icon); height: var(--m-icon); }
  .btn { height: var(--m-btn-h); padding: 0 var(--m-pad); font-size: var(--m-fs-sm); }
  .btn svg { width: var(--m-icon); height: var(--m-icon); }

  /* 侧栏抽屉 */
  .sidebar { width: var(--m-side); padding: var(--m-pad); }
  .nav-item { height: clamp(40px, 11.5vmin, 48px); padding: 0 var(--m-pad); gap: var(--m-gap); font-size: var(--m-fs); border-radius: var(--m-radius); }
  .nav-item svg { width: var(--m-icon); height: var(--m-icon); }
  .nav-title { font-size: var(--m-fs-xs); padding: 0 var(--m-pad); }

  /* 主内容 / 分类 / Hero / 卡片 */
  main { padding: calc(var(--topbar-h) + var(--m-gap-lg)) var(--m-pad) calc(var(--m-gap-lg) * 3); min-height: 100dvh; }
  body.guest main { padding-left: var(--m-pad); }
  .section-head { gap: var(--m-gap); margin-bottom: var(--m-gap); }
  .section-head h2 { font-size: var(--m-fs-lg); }
  .section-head .more { font-size: var(--m-fs-sm); }
  .block { margin-bottom: clamp(20px, 6vmin, 34px); }
  .chips { gap: var(--m-pad-sm); padding-bottom: var(--m-gap); }
  .chip { height: clamp(30px, 8.6vmin, 36px); padding: 0 var(--m-pad); font-size: var(--m-fs-sm); }
  .hero { aspect-ratio: 16 / 10; min-height: 0; border-radius: var(--m-radius); margin-bottom: var(--m-gap-lg); }
  .hero-body { padding: var(--m-pad); gap: var(--m-gap); }
  .hero-badge { padding: 2px var(--m-pad-sm); font-size: var(--m-fs-xs); }
  .hero-title { font-size: var(--m-fs-xl); }
  .hero-meta { font-size: var(--m-fs-sm); }
  .hero-play { width: clamp(44px, 13vmin, 62px); height: clamp(44px, 13vmin, 62px); }
  .hero-play svg { width: clamp(20px, 6vmin, 28px); height: clamp(20px, 6vmin, 28px); }
  .grid { grid-template-columns: repeat(auto-fill, minmax(min(100%, var(--m-card)), 1fr)); gap: var(--m-gap-lg) var(--m-gap); }
  .card-thumb { border-radius: var(--m-radius); }
  .card-dur, .card-badge-new { font-size: var(--m-fs-xs); padding: 2px var(--m-pad-sm); border-radius: var(--m-radius); }
  .card-play span { width: clamp(40px, 12vmin, 52px); height: clamp(40px, 12vmin, 52px); }
  .card-play svg { width: clamp(20px, 6vmin, 26px); height: clamp(20px, 6vmin, 26px); }
  .card-body { gap: var(--m-pad-sm); padding: var(--m-pad-sm) 2px 0; }
  .avatar { width: var(--m-avatar); height: var(--m-avatar); font-size: var(--m-fs-sm); }
  .card-title { font-size: var(--m-fs); }
  .card-meta { font-size: var(--m-fs-sm); }
  .card-remove { width: clamp(24px, 7vmin, 30px); height: clamp(24px, 7vmin, 30px); }
  .rail { gap: var(--m-gap); }
  .rail > .card { flex-basis: clamp(180px, 58vw, 260px); }
  .empty { padding: clamp(40px, 12vmin, 70px) var(--m-pad); }
  .empty svg { width: clamp(40px, 12vmin, 56px); height: clamp(40px, 12vmin, 56px); }
  .empty h3 { font-size: var(--m-fs-md); }
  .empty p { font-size: var(--m-fs-sm); }

  /* 播放器 */
  .watch-layout { gap: var(--m-gap-lg); }
  .player { border-radius: var(--m-radius); }
  .p-bigplay { width: clamp(50px, 15vmin, 70px); height: clamp(50px, 15vmin, 70px); }
  .p-bigplay svg { width: clamp(22px, 7vmin, 32px); height: clamp(22px, 7vmin, 32px); }
  .spinner { width: clamp(34px, 10vmin, 46px); height: clamp(34px, 10vmin, 46px); }
  .p-error { gap: var(--m-gap); padding: var(--m-pad); }
  .p-error svg { width: clamp(34px, 10vmin, 44px); height: clamp(34px, 10vmin, 44px); }
  .p-resume { left: var(--m-pad); top: var(--m-pad); max-width: calc(100% - var(--m-pad) * 2); padding: var(--m-pad-sm) var(--m-pad); gap: var(--m-gap); font-size: var(--m-fs-sm); }
  .p-resume button { padding: var(--m-pad-sm); font-size: var(--m-fs-sm); }
  .p-toast { padding: var(--m-pad-sm) var(--m-pad); font-size: var(--m-fs); border-radius: var(--m-radius); }
  .p-controls { padding: clamp(20px, 6vmin, 30px) var(--m-pad) var(--m-pad-sm); }
  .p-btns { height: clamp(36px, 10.5vmin, 44px); gap: var(--m-pad-sm); }
  .p-btns .icon-btn { width: clamp(30px, 8.8vmin, 38px); height: clamp(30px, 8.8vmin, 38px); }
  .p-btns .icon-btn svg { width: clamp(17px, 5vmin, 22px); height: clamp(17px, 5vmin, 22px); }
  .p-btns .p-text { padding: 0 var(--m-pad-sm); font-size: var(--m-fs-sm); }
  .p-time { margin: 0 var(--m-pad-sm); font-size: var(--m-fs-xs); }
  .p-bar, .p-vol-bar { height: clamp(3px, 1vmin, 5px); }
  .p-thumb { width: clamp(10px, 3.2vmin, 14px); height: clamp(10px, 3.2vmin, 14px); margin-left: calc(clamp(10px, 3.2vmin, 14px) * -0.5); }
  .p-tip { bottom: clamp(16px, 5vmin, 22px); font-size: var(--m-fs-xs); }
  .p-menu { bottom: clamp(38px, 11vmin, 48px); min-width: clamp(100px, 30vmin, 130px); padding: var(--m-pad-sm); border-radius: var(--m-radius); }
  .p-menu button { padding: var(--m-pad-sm) var(--m-pad); font-size: var(--m-fs-sm); }
  .watch-title { margin: var(--m-gap) 0 var(--m-pad-sm); font-size: var(--m-fs-lg); }
  .watch-meta { font-size: var(--m-fs-sm); }
  .watch-actions { gap: var(--m-gap); margin: var(--m-gap) 0 var(--m-gap-lg); }
  .watch-actions .btn svg { width: var(--m-icon); height: var(--m-icon); }
  .author-row { gap: var(--m-gap); padding: var(--m-pad); border-radius: var(--m-radius); }
  .author-row .avatar { width: clamp(34px, 10vmin, 44px); height: clamp(34px, 10vmin, 44px); font-size: var(--m-fs); }
  .author-name { font-size: var(--m-fs); }
  .author-sub { font-size: var(--m-fs-xs); }
  .desc { padding: var(--m-pad); border-radius: var(--m-radius); font-size: var(--m-fs-sm); max-height: clamp(70px, 22vmin, 100px); }
  .desc-toggle { font-size: var(--m-fs-sm); }
  .tags { gap: var(--m-pad-sm); }
  .tag { padding: var(--m-pad-sm) var(--m-pad); font-size: var(--m-fs-sm); }
  .rec-list { gap: var(--m-gap); }
  .rec { gap: var(--m-pad-sm); padding: var(--m-pad-sm); }
  .rec-thumb { width: var(--m-thumb); }
  .rec-title { font-size: var(--m-fs-sm); }
  .rec-meta { font-size: var(--m-fs-xs); }

  /* 顶栏用户区 / 设置面板 */
  .user-area, .user-chip { gap: var(--m-pad-sm); }
  .user-chip { height: var(--m-btn-h); padding: 0 var(--m-pad-sm); font-size: var(--m-fs-sm); }
  .user-chip .avatar { width: clamp(22px, 6.4vmin, 28px); height: clamp(22px, 6.4vmin, 28px); font-size: var(--m-fs-xs); }
  .user-name { max-width: clamp(60px, 20vmin, 100px); }
  .user-chip .icon-btn { width: clamp(26px, 7.5vmin, 32px); height: clamp(26px, 7.5vmin, 32px); }
  .user-chip .icon-btn svg { width: var(--m-icon); height: var(--m-icon); }
  .topbar-actions {
    top: calc(var(--topbar-h) + var(--m-pad-sm));
    right: var(--m-pad);
    width: min(var(--m-panel), calc(100vw - var(--m-pad) * 2));
    max-height: calc(100dvh - var(--topbar-h) - var(--m-gap-lg));
    padding: var(--m-pad-sm); gap: var(--m-pad-sm);
    border-radius: var(--m-radius);
  }
  .topbar-actions > .icon-btn { height: var(--m-btn-h); padding: 0 var(--m-pad); gap: var(--m-gap); }
  #refreshBtn::after, #themeBtn::after { font-size: var(--m-fs-sm); }
  body:not(.guest) .topbar-actions .promo-entry { height: var(--m-btn-h); padding: 0 var(--m-pad); font-size: var(--m-fs-sm); }
  /* ---- 设置面板账号区：固定三行网格，元素各归其位 ----
     第一行 头像 / 昵称 / VIP 徽章，第二行 到期时间 / 续费(开通)VIP，第三行 退出登录；
     用分隔线与上方「推广 / 刷新 / 主题」区分，避免窄面板里随机换行。 */
  .topbar-actions .user-area { width: 100%; margin-top: var(--m-pad-sm); }
  .topbar-actions .user-chip {
    width: 100%; height: auto; min-height: 0;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    grid-template-areas:
      "avatar name    badge"
      "exp    exp     upgrade"
      "logout logout  logout";
    align-items: center;
    gap: var(--m-pad-sm) var(--m-gap);
    padding: var(--m-gap) var(--m-pad-sm) var(--m-pad-sm);
    border: 0; border-top: 1px solid var(--border);
    border-radius: 0;
    background: transparent;
  }
  .topbar-actions .user-chip .avatar { grid-area: avatar; width: var(--m-avatar); height: var(--m-avatar); }
  .topbar-actions .user-name {
    grid-area: name; min-width: 0; max-width: none;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
    font-weight: 600; font-size: var(--m-fs-sm);
  }
  .topbar-actions .member-badge { grid-area: badge; justify-self: end; }
  .topbar-actions .member-exp { grid-area: exp; justify-self: start; }
  .topbar-actions .member-upgrade { grid-area: upgrade; justify-self: end; white-space: nowrap; }
  .topbar-actions .user-chip #logoutBtn {
    grid-area: logout;
    width: 100%; height: var(--m-btn-h);
    justify-content: center; gap: var(--m-pad-sm);
    padding: 0 var(--m-pad);
    border: 1px solid var(--border); border-radius: var(--m-radius);
    background: var(--bg-elev-2);
  }
  .topbar-actions .user-chip #logoutBtn::after { content: '退出登录'; font-size: var(--m-fs-xs); }

  /* 非会员：开通 VIP 独占第二行；终生会员：有效期独占第二行。
     不支持 :has() 的旧内核退回上方三行，位置依然固定不乱。 */
  .topbar-actions .user-chip:not(:has(.member-exp)) {
    grid-template-areas: "avatar name badge" "upgrade upgrade upgrade" "logout logout logout";
  }
  .topbar-actions .user-chip:not(:has(.member-exp)) .member-upgrade { justify-self: stretch; }
  .topbar-actions .user-chip:not(:has(.member-upgrade)) {
    grid-template-areas: "avatar name badge" "exp exp exp" "logout logout logout";
  }

  /* 登录 / 注册 */
  .auth-wrap { min-height: calc(100dvh - var(--topbar-h) - var(--m-gap-lg) * 2); padding: var(--m-pad); }
  .auth-card { max-width: min(92vw, 400px); padding: var(--m-gap-lg) var(--m-pad); border-radius: var(--m-radius); }
  .auth-head { margin-bottom: var(--m-gap-lg); }
  .auth-logo { width: clamp(44px, 13vmin, 56px); height: clamp(44px, 13vmin, 56px); margin-bottom: var(--m-gap); border-radius: var(--m-radius); }
  .auth-logo svg { width: clamp(22px, 6.5vmin, 28px); height: clamp(22px, 6.5vmin, 28px); }
  .auth-head h1 { font-size: var(--m-fs-xl); }
  .auth-head p { font-size: var(--m-fs-sm); }
  .field { margin-bottom: var(--m-gap); }
  .field label { margin-bottom: var(--m-pad-sm); font-size: var(--m-fs-sm); }
  .field input { height: clamp(40px, 11.5vmin, 48px); padding: 0 var(--m-pad); font-size: var(--m-fs); border-radius: var(--m-radius); }
  .field .hint, .auth-error, .auth-invite { font-size: var(--m-fs-xs); }
  .auth-error, .auth-invite { margin-bottom: var(--m-gap); padding: var(--m-pad-sm) var(--m-pad); border-radius: var(--m-radius); }
  .auth-submit { height: clamp(42px, 12vmin, 48px); font-size: var(--m-fs); }
  .auth-foot { margin-top: var(--m-gap); font-size: var(--m-fs-sm); }

  /* 推广中心 */
  .promo-layout { gap: var(--m-gap-lg); }
  .promo-menu { top: calc(var(--topbar-h) + var(--m-gap)); padding: var(--m-pad); border-radius: var(--m-radius); }
  .promo-menu-title { margin-bottom: var(--m-gap); padding: 0 var(--m-pad-sm); font-size: var(--m-fs-md); }
  .promo-menu-item { padding: var(--m-pad-sm) var(--m-pad); font-size: var(--m-fs-sm); border-radius: var(--m-radius); }
  .promo-menu-note { font-size: var(--m-fs-xs); }
  .promo-card { padding: var(--m-pad); border-radius: var(--m-radius); }
  .promo-card h2 { font-size: var(--m-fs-lg); }
  .promo-sub, .promo-note, .promo-withdraw-hint { font-size: var(--m-fs-sm); }
  .promo-link-row { gap: var(--m-gap); }
  .promo-link-row code { padding: var(--m-pad-sm) var(--m-pad); font-size: var(--m-fs-xs); border-radius: var(--m-radius); }
  .promo-qr h3, .promo-empty h3, .promo-section-title { font-size: var(--m-fs-md); }
  .promo-qr-box { padding: var(--m-pad-sm); }
  .promo-qr-box svg { width: clamp(130px, 40vmin, 180px); height: clamp(130px, 40vmin, 180px); }
  .promo-stats { grid-template-columns: repeat(auto-fit, minmax(min(100%, clamp(120px, 38vmin, 160px)), 1fr)); gap: var(--m-gap); }
  .promo-stat { padding: var(--m-pad); border-radius: var(--m-radius); }
  .promo-stat span { font-size: var(--m-fs-xs); }
  .promo-stat b { font-size: var(--m-fs-xl); }
  .promo-invite-item, .promo-earn-item, .promo-withdraw-item { padding: var(--m-pad-sm) var(--m-pad); font-size: var(--m-fs-sm); }
  .promo-earn-item b, .promo-withdraw-item b { font-size: var(--m-fs-sm); }
  .promo-earn-item span, .promo-withdraw-item span, .promo-invite-item time, .promo-earn-tag { font-size: var(--m-fs-xs); }
  .promo-earn-money b { font-size: var(--m-fs-md); }
  .promo-form { gap: var(--m-gap); max-width: 100%; }
  .promo-form label { gap: var(--m-pad-sm); font-size: var(--m-fs-sm); }
  .promo-form input { height: clamp(38px, 11vmin, 44px); padding: 0 var(--m-pad); font-size: var(--m-fs); border-radius: var(--m-radius); }

  /* Toast */
  .toasts { bottom: var(--m-gap-lg); gap: var(--m-pad-sm); }
  .toast { padding: var(--m-pad-sm) var(--m-pad); border-radius: var(--m-radius); font-size: var(--m-fs-sm); }
}

/* 窄屏保持单列，避免比例列宽把卡片挤成两列 */
@media (max-width: 560px) {
  .grid { grid-template-columns: 1fr; gap: var(--m-gap-lg); }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}