/* ============================================================
   Web v3 壳层：桌面侧栏 / 移动底栏 / 页面容器 / 通用组件
   页面业务样式继续由 app.css 与 pages-v3.css 提供。
   ============================================================ */

:root {
  --radius: 8px;
  --topbar-h: 56px;
  --sidebar-w: 264px;
  --content-max: 1280px;
}

html { scroll-behavior: smooth; }
body {
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--bg-soft) 52%, transparent), transparent 320px),
    var(--bg);
}

.app-shell { min-height: 100vh; }
.main-content {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: calc(var(--topbar-h) + 18px) 16px calc(84px + env(safe-area-inset-bottom));
}

.topbar {
  height: var(--topbar-h);
  gap: 12px;
  padding: 0 16px;
  background: color-mix(in srgb, var(--bg-card) 90%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 78%, transparent);
  box-shadow: 0 1px 14px rgba(15, 23, 42, .035);
}

.brand { min-width: 0; font-size: 15px; }
.brand-logo { width: 30px; height: 30px; }
.brand-name { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.brand-tag {
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--brand);
  background: color-mix(in srgb, var(--brand) 12%, transparent);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .05em;
}

.topbar-search {
  width: min(360px, 34vw);
  height: 36px;
  margin-left: 10px;
  padding: 0 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg-soft);
  color: var(--text-3);
  text-align: left;
}
.topbar-search:hover { color: var(--text-2); border-color: color-mix(in srgb, var(--brand) 35%, var(--line)); }
.topbar-search span { flex: 1; font-size: 13px; }
.topbar-search kbd {
  padding: 1px 5px;
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  border-radius: 4px;
  background: var(--bg-card);
  color: var(--text-3);
  font-size: 10px;
  font-family: inherit;
}

.topbar-actions { gap: 7px; }
.topbar-quick {
  height: 36px;
  padding: 0 11px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text-2);
  font-size: 13px;
}
.topbar-quick:hover { color: var(--text); background: var(--bg-hover); }
.topbar-quick .ui-icon { width: 17px; height: 17px; }

.icon-btn { width: 36px; height: 36px; border-radius: 8px; }
.topbar-menu { display: none; }

.sidebar {
  top: var(--topbar-h);
  width: var(--sidebar-w);
  padding: 12px 10px 22px;
  background: color-mix(in srgb, var(--bg-card) 96%, transparent);
  scrollbar-gutter: stable;
  scrollbar-width: thin;
  scrollbar-color: rgba(148, 163, 184, .48) transparent;
}
.sidebar::-webkit-scrollbar { width: 6px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(148, 163, 184, .42);
}
.sidebar::-webkit-scrollbar-thumb:hover {
  background: color-mix(in srgb, var(--brand) 52%, var(--text-3));
}
.sidebar-nav { padding-bottom: 14px; }
.nav-group-title {
  padding: 18px 12px 7px;
  color: var(--text-3);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: .075em;
  text-transform: uppercase;
}
.nav-item {
  min-height: 42px;
  padding: 7px 10px;
  gap: 10px;
  border-radius: 7px;
  font-size: 15px;
  line-height: 1.35;
}
.nav-item.active {
  background: color-mix(in srgb, var(--brand) 11%, transparent);
  color: var(--text);
  box-shadow: inset 3px 0 0 var(--brand);
}
.nav-icon-box {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  background: var(--bg-soft);
}
.nav-icon { width: 18px; height: 18px; object-fit: contain; }
.sidebar-foot {
  margin: 14px 8px 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-3);
  font-size: 11px;
  letter-spacing: .06em;
}
.sidebar-foot strong { color: var(--text-2); font-size: 12px; }

.mobile-tabbar { display: none; }

.app-footer {
  max-width: var(--content-max);
  padding: 22px 18px calc(86px + env(safe-area-inset-bottom));
  align-items: stretch;
  text-align: left;
}
.footer-main {
  padding-top: 16px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}
.footer-brand { display: flex; align-items: center; gap: 10px; }
.footer-logo { width: 34px; height: 34px; object-fit: contain; }
.footer-brand strong { display: block; color: var(--text-2); font-size: 13px; }
.footer-brand span { display: block; margin-top: 2px; color: var(--text-3); font-size: 11px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 14px; padding-top: 5px; }
.footer-links a, .footer-link-btn {
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--text-3);
  font-size: 12px;
}
.footer-links a:hover, .footer-link-btn:hover { color: var(--brand); }
.footer-disclaimer, .footer-anti-addiction, .footer-beian { margin-top: 10px; color: var(--text-3); font-size: 11px; }
.footer-anti-addiction { line-height: 1.7; }

/* ── 快捷搜索 ─────────────────────────────── */
.command-root {
  position: fixed;
  inset: 0;
  z-index: 3000;
  padding: min(14vh, 120px) 16px 16px;
  background: rgba(15, 23, 42, .5);
  backdrop-filter: blur(4px);
}
.command-panel {
  width: min(620px, 100%);
  max-height: min(620px, 78vh);
  margin: 0 auto;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg-card);
  box-shadow: 0 24px 70px rgba(15, 23, 42, .3);
  display: flex;
  flex-direction: column;
}
.command-input-wrap {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 10px;
}
.command-input-wrap .ui-icon { width: 18px; height: 18px; opacity: .65; }
.command-input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  font-size: 16px;
}
.command-close { border: 0; background: transparent; color: var(--text-3); font-size: 20px; }
.command-list { overflow-y: auto; padding: 8px; }
.command-group-title { padding: 9px 10px 5px; color: var(--text-3); font-size: 11px; font-weight: 700; }
.command-item {
  width: 100%;
  padding: 9px 10px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: var(--text-2);
  display: flex;
  align-items: center;
  gap: 10px;
  text-align: left;
}
.command-item:hover, .command-item.active { color: var(--text); background: var(--bg-hover); }
.command-item .ui-icon { width: 18px; height: 18px; }
.command-item small { margin-left: auto; color: var(--text-3); font-size: 11px; }
.command-empty { padding: 34px 16px; color: var(--text-3); text-align: center; }

/* ── 通用 v3 组件 ─────────────────────────── */
.v3-page { width: 100%; }
.v3-page-head {
  margin-bottom: 16px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
}
.v3-eyebrow {
  display: block;
  margin-bottom: 4px;
  color: var(--brand);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
}
.v3-page-head h1 { font-size: clamp(22px, 3vw, 30px); line-height: 1.18; }
.v3-page-head p { margin-top: 5px; color: var(--text-2); font-size: 13px; }
.v3-page-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.v3-section { margin-top: 22px; }
.v3-section-head {
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.v3-section-head h2 { font-size: 17px; }
.v3-section-head span { color: var(--text-3); font-size: 12px; }
.v3-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg-card);
  box-shadow: var(--shadow);
}
.v3-toolbar {
  margin-bottom: 12px;
  padding: 10px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.v3-search {
  min-width: 220px;
  flex: 1;
  height: 38px;
  padding: 0 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--bg-soft);
}
.v3-search .ui-icon { width: 17px; height: 17px; opacity: .65; }
.v3-search input, .v3-search select {
  width: 100%;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  font-size: 14px;
}
.v3-chipbar { display: flex; flex-wrap: wrap; gap: 7px; }
.v3-chip {
  min-height: 30px;
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg-card);
  color: var(--text-2);
  font-size: 12.5px;
}
.v3-chip:hover { border-color: color-mix(in srgb, var(--brand) 38%, var(--line)); color: var(--text); }
.v3-chip.active {
  border-color: color-mix(in srgb, var(--brand) 52%, transparent);
  background: color-mix(in srgb, var(--brand) 12%, var(--bg-card));
  color: var(--brand);
  font-weight: 700;
}
.v3-state { padding: 44px 16px; color: var(--text-3); text-align: center; }
.v3-state strong { display: block; margin-bottom: 5px; color: var(--text-2); font-size: 15px; }
.v3-state .btn { margin-top: 12px; }
.v3-tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 7px;
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--text-2);
  font-size: 11px;
  font-weight: 600;
}
.v3-tag.hot { color: #b45309; background: rgba(245, 158, 11, .14); }
.v3-tag.ok { color: #15803d; background: rgba(34, 197, 94, .13); }
.v3-tag.err { color: #b91c1c; background: rgba(239, 68, 68, .12); }
.v3-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.v3-feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.v3-tool {
  min-width: 0;
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg-card);
  color: var(--text);
  display: flex;
  align-items: flex-start;
  gap: 11px;
  box-shadow: var(--shadow);
}
.v3-tool:hover { border-color: color-mix(in srgb, var(--brand) 42%, var(--line)); transform: translateY(-1px); }
.v3-tool-icon {
  width: 40px;
  height: 40px;
  flex: 0 0 40px;
  padding: 7px;
  border-radius: 7px;
  background: var(--bg-soft);
  object-fit: contain;
}
.v3-tool-copy { min-width: 0; flex: 1; }
.v3-tool-name { display: flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 750; }
.v3-tool-desc {
  margin-top: 3px;
  color: var(--text-3);
  font-size: 12px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.v3-tool-arrow { align-self: center; color: var(--text-3); font-size: 18px; }

.v3-grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.v3-grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.v3-grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.v3-stat {
  padding: 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg-card);
}
.v3-stat-label { color: var(--text-3); font-size: 11px; }
.v3-stat-value { margin-top: 4px; font-size: 20px; font-weight: 800; line-height: 1.1; }
.v3-stat-unit { margin-left: 3px; color: var(--text-3); font-size: 11px; font-weight: 500; }

@media (min-width: 720px) {
  .v3-feature-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 1100px) {
  .main-content {
    width: auto;
    margin-left: var(--sidebar-w);
    margin-right: 0;
    max-width: none;
    padding: calc(var(--topbar-h) + 22px) 28px 38px;
  }
  .main-content > * { max-width: var(--content-max); margin-left: auto; margin-right: auto; }
  .app-footer { width: auto; margin-left: var(--sidebar-w); margin-right: 0; max-width: none; padding: 24px 30px 30px; }
  .app-footer > * { max-width: var(--content-max); margin-left: auto; margin-right: auto; }
  .sidebar { transform: translateX(0); }
  .sidebar-mask { display: none; }
  .topbar-menu { display: none; }
  .mobile-tabbar { display: none; }
  .v3-feature-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (max-width: 1099px) {
  .topbar-menu { display: inline-flex; }
  .sidebar { box-shadow: 12px 0 36px rgba(15, 23, 42, .18); }
  .topbar-search { width: min(300px, 40vw); }
  .topbar-quick { display: none; }
  .mobile-tabbar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 120;
    padding-bottom: env(safe-area-inset-bottom);
    border-top: 1px solid var(--line);
    background: color-mix(in srgb, var(--bg-card) 94%, transparent);
    backdrop-filter: blur(14px);
    display: grid;
    grid-template-columns: repeat(4, 1fr);
  }
  .mobile-tabbar a {
    position: relative;
    min-height: 54px;
    padding: 7px 4px 5px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    color: var(--text-3);
    font-size: 10px;
  }
  .mobile-tabbar a.active { color: var(--brand); }
  .mobile-tabbar .ui-icon { width: 20px; height: 20px; }
  .mobile-inbox-badge {
    position: absolute;
    top: 5px;
    left: calc(50% + 8px);
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--err);
  }
}

@media (max-width: 719px) {
  .main-content { padding-left: 12px; padding-right: 12px; }
  .topbar { padding: 0 10px; gap: 8px; }
  .brand-name, .brand-tag { display: none; }
  .topbar-search { width: 36px; padding: 0; justify-content: center; margin-left: 0; }
  .topbar-search span, .topbar-search kbd { display: none; }
  .topbar-login { display: none; }
  .topbar-actions { gap: 5px; }
  .topbar-actions .icon-btn { width: 34px; height: 34px; }
  .v3-page-head { align-items: flex-start; flex-direction: column; }
  .v3-grid-2, .v3-grid-3, .v3-grid-4 { grid-template-columns: 1fr; }
  .v3-feature-grid { grid-template-columns: 1fr; }
  .footer-main { flex-direction: column; }
}