/* ============================================
   小云科技 · 门户样式 v2
   简洁商务风 · 去AI味
   ============================================ */

:root {
  --primary: #0a84ff;
  --primary-dark: #0066cc;
  --primary-light: #e8f2ff;
  --text: #1d1d1f;
  --text-secondary: #6e6e73;
  --text-tertiary: #86868b;
  --bg: #ffffff;
  --bg-alt: #f5f5f7;
  --border: #d2d2d7;
  --border-light: #ececf0;
  --card: #ffffff;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 2px 12px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 28px rgba(0,0,0,0.08);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
}

[data-theme="dark"] {
  --primary: #0a84ff;
  --primary-dark: #409cff;
  --primary-light: rgba(10,132,255,0.15);
  --text: #f5f5f7;
  --text-secondary: #a1a1a6;
  --text-tertiary: #86868b;
  --bg: #000000;
  --bg-alt: #1c1c1e;
  --border: #38383a;
  --border-light: #2c2c2e;
  --card: #1c1c1e;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 2px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 28px rgba(0,0,0,0.5);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto,
               "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.wrap { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ============================================
   顶部导航
   ============================================ */
.topbar {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.88);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid var(--border-light);
}
[data-theme="dark"] .topbar { background: rgba(0,0,0,0.88); }

.topbar-in {
  display: flex; align-items: center; justify-content: space-between;
  height: 56px; gap: 20px;
}

.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-mark {
  width: 32px; height: 32px; border-radius: 8px;
  background: var(--primary);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 16px;
}
.logo-mark.big { width: 44px; height: 44px; font-size: 20px; border-radius: 12px; }
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-text b { font-size: 14px; font-weight: 600; }
.logo-text small { font-size: 11px; color: var(--text-tertiary); }

.topnav {
  display: flex; gap: 2px; flex: 1; justify-content: center;
  overflow-x: auto;
}
.topnav a {
  padding: 6px 12px; border-radius: 6px; font-size: 13px;
  color: var(--text-secondary); font-weight: 500;
  transition: all 0.15s; white-space: nowrap;
}
.topnav a:hover { color: var(--text); background: var(--bg-alt); }
.topnav a.on { color: var(--primary); background: var(--primary-light); }

.topright { display: flex; align-items: center; gap: 6px; flex-shrink: 0; }

.icon-btn {
  width: 32px; height: 32px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  background: transparent; border: none; cursor: pointer;
  color: var(--text-secondary); font-size: 15px;
  transition: all 0.15s;
}
.icon-btn:hover { background: var(--bg-alt); color: var(--text); }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 7px 16px; border-radius: 8px; font-size: 13px;
  font-weight: 500; cursor: pointer; border: none; transition: all 0.15s;
  line-height: 1.4; white-space: nowrap;
}
.btn-primary {
  background: var(--primary); color: #fff;
}
.btn-primary:hover { background: var(--primary-dark); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--bg-alt); border-color: var(--text-tertiary); }
.btn-outline { background: transparent; color: var(--primary); border: 1px solid var(--primary); }
.btn-outline:hover { background: var(--primary-light); }
.btn-lg { padding: 12px 28px; font-size: 15px; border-radius: 10px; }

.user-btn {
  display: flex; align-items: center; gap: 6px;
  padding: 3px 10px 3px 3px; border-radius: 16px;
  background: var(--bg-alt); transition: all 0.15s;
}
.user-btn:hover { background: var(--border-light); }
.avatar {
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--primary);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-weight: 600; font-size: 12px;
}
.uname { font-size: 12px; font-weight: 500; max-width: 72px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.admin-btn { padding: 5px 10px; font-size: 11px; background: var(--bg-alt); border-radius: 6px; color: var(--text-secondary); }

.flash-notice {
  margin-top: 16px; padding: 10px 18px;
  background: var(--primary-light); color: var(--primary-dark);
  border-radius: var(--radius-md); font-size: 13px;
}

/* ============================================
   Hero Section
   ============================================ */
.portal-hero {
  padding: 72px 0 56px;
  background: var(--bg);
  border-bottom: 1px solid var(--border-light);
  text-align: center;
}

.portal-hero .wrap {
  max-width: 640px;
}

.hero-title {
  font-size: 36px; font-weight: 700; line-height: 1.2;
  letter-spacing: -0.5px; margin-bottom: 14px;
}
.gradient-text {
  color: var(--text);
  font-weight: 700;
}
.hero-desc {
  font-size: 14px; color: var(--text-secondary);
  margin-bottom: 28px;
}

.hero-search {
  display: flex; align-items: center; gap: 6px;
  background: var(--bg); border-radius: 10px; padding: 3px;
  border: 1px solid var(--border); max-width: 480px; margin: 0 auto;
}
.hero-search:focus-within { border-color: var(--primary); }
.hero-search .search-icon { padding: 0 8px; color: var(--text-tertiary); font-size: 15px; }
.hero-search input {
  flex: 1; border: none; outline: none; background: transparent;
  font-size: 14px; padding: 8px 4px; color: var(--text);
  text-align: left;
}
.hero-search button { padding: 7px 18px; border-radius: 7px; font-size: 13px; flex-shrink: 0; }

.hero-stats {
  display: flex; gap: 24px; margin-top: 32px; flex-wrap: wrap;
}
.stat-item b { display: block; font-size: 22px; font-weight: 700; color: var(--text); }
.stat-item small { color: var(--text-tertiary); font-size: 12px; }

.hero-actions-right { display: flex; justify-content: center; }
.cta-block {
  background: var(--bg-alt); border: 1px solid var(--border-light);
  border-radius: var(--radius-lg); padding: 24px 28px;
  display: flex; flex-direction: column; gap: 4px;
  transition: all 0.15s;
}
.cta-block:hover { border-color: var(--primary); background: var(--primary-light); }
.cta-block b { font-size: 15px; font-weight: 600; }
.cta-block small { font-size: 12px; color: var(--text-secondary); }

.portal-notice {
  margin-top: 16px; padding: 12px 20px;
  background: #fff8e1; border: 1px solid #ffe082;
  border-radius: var(--radius-md);
  font-size: 13px; color: #795548;
}
[data-theme="dark"] .portal-notice {
  background: rgba(255, 193, 7, 0.12); border-color: rgba(255, 193, 7, 0.3); color: #ffcc80;
}

/* ============================================
   Section 通用
   ============================================ */
.portal-sec { padding: 64px 0; }
.portal-sec.alt { background: var(--bg-alt); }

.sec-header {
  display: flex; justify-content: space-between; align-items: flex-end;
  margin-bottom: 32px; gap: 20px;
}
.sec-header.simple { justify-content: flex-start; align-items: center; }
.sec-header.small { margin-bottom: 16px; }

.sec-header h2 { font-size: 26px; font-weight: 700; letter-spacing: -0.3px; margin-bottom: 6px; }
.sec-header.small h3 { font-size: 17px; font-weight: 600; }
.sec-header p { color: var(--text-secondary); font-size: 14px; }
.more-link { color: var(--primary); font-size: 13px; font-weight: 500; flex-shrink: 0; }
.more-link:hover { text-decoration: underline; }

/* ============================================
   Quick Grid (核心入口)
   ============================================ */
.quick-grid {
  display: grid; grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}
.quick-card {
  background: var(--card); border: 1px solid var(--border-light);
  border-radius: var(--radius-md); padding: 18px 10px;
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  transition: all 0.15s; text-align: center;
}
.quick-card:hover {
  border-color: var(--primary);
  transform: translateY(-1px);
}
.qic {
  width: 36px; height: 36px; border-radius: 8px;
  background: var(--bg-alt); color: var(--text-secondary);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; margin-bottom: 2px;
}
.quick-card:hover .qic { background: var(--primary-light); color: var(--primary); }
.quick-card b { font-size: 13px; font-weight: 600; }
.quick-card small { font-size: 11px; color: var(--text-tertiary); }

/* ============================================
   Trending List
   ============================================ */
.trending-list { display: flex; flex-direction: column; gap: 10px; }
.trending-item {
  display: flex; gap: 14px; padding: 16px 20px;
  background: var(--card); border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  transition: all 0.15s;
}
.trending-item:hover { border-color: var(--primary); }
.trend-rank {
  width: 28px; height: 28px; border-radius: 6px;
  background: var(--bg-alt); color: var(--text-tertiary);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 13px; flex-shrink: 0;
}
.trending-item:nth-child(1) .trend-rank { background: #1d1d1f; color: #ffd60a; }
.trending-item:nth-child(2) .trend-rank { background: #6e6e73; color: #e5e5ea; }
.trending-item:nth-child(3) .trend-rank { background: #a16207; color: #fff; }
.trend-info { flex: 1; min-width: 0; }
.trend-name { font-size: 14px; font-weight: 600; margin-bottom: 4px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.trend-name .owner { color: var(--text-tertiary); font-weight: 400; }
.trend-name .lang { padding: 1px 7px; border-radius: 8px; font-size: 10px; color: #fff; }
.trend-desc { color: var(--text-secondary); font-size: 12px; margin-bottom: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.trend-meta { display: flex; gap: 14px; font-size: 12px; color: var(--text-tertiary); }
.trend-meta .up { color: #34c759; font-weight: 600; }

/* ============================================
   Dual (Skills + MCP)
   ============================================ */
.dual { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }

.skill-list { display: flex; flex-direction: column; gap: 8px; }
.skill-row {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 16px; background: var(--card);
  border-radius: var(--radius-md); border: 1px solid var(--border-light);
  transition: all 0.15s;
}
.skill-row:hover { border-color: var(--primary); }
.si {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--bg-alt); display: flex; align-items: center; justify-content: center;
  font-size: 16px; flex-shrink: 0;
}
.skill-row b { flex: 1; font-size: 14px; font-weight: 600; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.skill-row small { font-size: 12px; color: var(--text-tertiary); flex-shrink: 0; }

/* ============================================
   Ranking Shortcuts
   ============================================ */
.rank-shortcuts {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px;
}
.rank-shortcuts a {
  background: var(--card); border: 1px solid var(--border-light);
  border-radius: var(--radius-md); padding: 20px;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  font-size: 14px; font-weight: 500; transition: all 0.15s;
}
.rank-shortcuts a:hover { border-color: var(--primary); background: var(--primary-light); }
.rank-shortcuts .ri {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--primary-light); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
}

/* ============================================
   Tutorials
   ============================================ */
.tut-short {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px;
}
.tut-row {
  background: var(--card); border: 1px solid var(--border-light);
  border-radius: var(--radius-md); padding: 18px;
  display: flex; flex-direction: column; gap: 8px;
  transition: all 0.15s;
}
.tut-row:hover { border-color: var(--primary); box-shadow: var(--shadow-sm); }
.tcat {
  display: inline-block; padding: 2px 8px; border-radius: 6px;
  background: var(--bg-alt); color: var(--text-secondary);
  font-size: 11px; font-weight: 500; width: fit-content;
}
.tut-row b { font-size: 14px; font-weight: 600; line-height: 1.4; }
.tut-row small { font-size: 12px; color: var(--text-tertiary); }

/* ============================================
   CTA Banner
   ============================================ */
.cta-banner {
  background: var(--bg-alt); border: 1px solid var(--border-light);
  border-radius: var(--radius-md); padding: 28px;
  display: flex; flex-direction: column; align-items: center; text-align: center; gap: 14px;
}
.cta-banner h3 { font-size: 16px; font-weight: 600; margin-bottom: 2px; }
.cta-banner p { color: var(--text-secondary); font-size: 13px; margin-bottom: 2px; }

/* ============================================
   Product Row
   ============================================ */
.product-row {
  display: flex; gap: 14px; flex-wrap: wrap;
}
.prow {
  background: var(--card); border: 1px solid var(--border-light);
  border-radius: var(--radius-md); padding: 16px 20px;
  display: flex; align-items: center; gap: 12px;
  transition: all 0.15s; flex: 1; min-width: 200px;
}
.prow:hover { border-color: var(--primary); }
.prow .pi {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--primary-light); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; flex-shrink: 0;
}
.prow b { font-size: 14px; font-weight: 600; display: block; }
.prow small { font-size: 12px; color: var(--text-tertiary); }

/* ============================================
   Service Grid (列表页)
   ============================================ */
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.service-card {
  background: var(--card); border-radius: var(--radius-lg);
  padding: 24px; border: 1px solid var(--border-light);
  transition: all 0.15s; display: flex; flex-direction: column;
}
.service-card:hover { border-color: var(--primary); box-shadow: var(--shadow-sm); }
.service-icon {
  width: 44px; height: 44px; border-radius: 12px;
  background: var(--primary-light); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; margin-bottom: 14px;
}
.service-card h4 { font-size: 15px; font-weight: 600; margin-bottom: 6px; }
.service-card p { font-size: 13px; color: var(--text-secondary); line-height: 1.6; margin-bottom: auto; }
.service-footer { display: flex; justify-content: space-between; align-items: center; margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--border-light); }
.service-footer .price { font-weight: 600; color: var(--primary); font-size: 14px; }
.service-footer .delivery { font-size: 12px; color: var(--text-tertiary); }

/* ============================================
   Cases
   ============================================ */
.cases-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.case-card {
  background: var(--card); border-radius: var(--radius-lg);
  overflow: hidden; border: 1px solid var(--border-light);
  transition: all 0.15s;
}
.case-card:hover { border-color: var(--primary); }
.case-cover {
  height: 140px; background-size: cover; background-position: center;
  background: var(--bg-alt);
}
.case-info { padding: 16px 18px; }
.case-info h4 { font-size: 14px; font-weight: 600; margin-bottom: 4px; }
.case-info small { font-size: 12px; color: var(--text-tertiary); }

/* ============================================
   Portal Footer
   ============================================ */
.portal-foot {
  background: var(--bg-alt); padding: 48px 0 20px;
  border-top: 1px solid var(--border-light);
}
.foot-grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 32px;
}
.foot-brand { display: flex; gap: 14px; align-items: flex-start; }
.foot-brand .site-title { display: block; font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.foot-brand small { display: block; font-size: 12px; color: var(--text-secondary); }
.foot-col h4 { font-size: 13px; font-weight: 600; margin-bottom: 12px; color: var(--text); }
.foot-col a, .foot-col span { display: block; font-size: 12px; color: var(--text-secondary); margin-bottom: 8px; transition: color 0.15s; }
.foot-col a:hover { color: var(--primary); }
.foot-bottom { display: flex; justify-content: space-between; padding-top: 20px; border-top: 1px solid var(--border-light); font-size: 11px; color: var(--text-tertiary); }

/* ============================================
   Empty State
   ============================================ */
.empty-state {
  text-align: center; padding: 40px; color: var(--text-tertiary);
  background: var(--bg-alt); border-radius: var(--radius-md); font-size: 14px;
  grid-column: 1 / -1;
}

/* ============================================
   Bottom Nav (Mobile)
   ============================================ */
.bottomnav {
  display: none; position: fixed; bottom: 0; left: 0; right: 0;
  background: rgba(255,255,255,0.92); backdrop-filter: blur(20px);
  border-top: 1px solid var(--border-light);
  height: 52px; z-index: 100; padding-bottom: env(safe-area-inset-bottom);
}
[data-theme="dark"] .bottomnav { background: rgba(0,0,0,0.92); }
.bottomnav a {
  flex: 1; display: flex; flex-direction: column; align-items: center;
  justify-content: center; font-size: 9.5px; color: var(--text-tertiary);
  gap: 1px; transition: color 0.15s; padding: 5px 0 4px;
  letter-spacing: 0.02em;
}
.bottomnav a.on { color: var(--primary); font-weight: 500; }
.bottomnav a svg {
  width: 21px; height: 21px; margin-bottom: 1px;
  fill: none; stroke: currentColor; stroke-width: 1.5;
  stroke-linecap: round; stroke-linejoin: round;
}
.bottomnav a b { font-size: 18px; font-weight: 400; line-height: 1; margin-bottom: 1px; }

/* ============================================
   Admin Layout
   ============================================ */
.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar {
  width: 220px; background: var(--bg-alt); padding: 20px 0;
  border-right: 1px solid var(--border-light); flex-shrink: 0;
}
.admin-sidebar h3 { padding: 0 20px 14px; font-size: 12px; color: var(--text-tertiary); letter-spacing: 0.5px; }
.admin-sidebar a {
  display: block; padding: 8px 20px; font-size: 13px; color: var(--text-secondary);
  transition: all 0.15s; border-left: 3px solid transparent;
}
.admin-sidebar a:hover { background: var(--border-light); color: var(--text); }
.admin-sidebar a.active { background: var(--primary-light); color: var(--primary); border-left-color: var(--primary); }
.admin-content { flex: 1; padding: 28px; overflow-x: auto; }
.admin-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 28px; }
.admin-stat { background: var(--card); padding: 20px; border-radius: var(--radius-md); border: 1px solid var(--border-light); }
.admin-stat b { display: block; font-size: 24px; font-weight: 700; color: var(--primary); }
.admin-stat small { font-size: 12px; color: var(--text-tertiary); }

table { width: 100%; border-collapse: collapse; background: var(--card); border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--border-light); }
th, td { padding: 12px 14px; text-align: left; font-size: 13px; border-bottom: 1px solid var(--border-light); }
th { background: var(--bg-alt); font-weight: 600; font-size: 12px; color: var(--text-secondary); }
tr:last-child td { border-bottom: none; }
tr:hover { background: var(--bg-alt); }

.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 6px; color: var(--text-secondary); }
.form-control {
  width: 100%; padding: 10px 14px; font-size: 13px; border: 1px solid var(--border);
  border-radius: var(--radius-sm); background: var(--bg); color: var(--text);
  transition: border-color 0.15s; font-family: inherit;
}
.form-control:focus { outline: none; border-color: var(--primary); }
textarea.form-control { min-height: 100px; resize: vertical; }

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
  .portal-hero .wrap { grid-template-columns: 1fr; gap: 32px; }
  .hero-actions-right { display: none; }
  .quick-grid { grid-template-columns: repeat(3, 1fr); }
  .dual { grid-template-columns: 1fr; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .tut-short { grid-template-columns: repeat(2, 1fr); }
  .rank-shortcuts { grid-template-columns: repeat(4, 1fr); }
  .foot-grid { grid-template-columns: repeat(3, 1fr); gap: 24px; }
  .admin-stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .topnav { display: none; }
  .portal-hero { padding: 40px 0 32px; }
  .hero-content h1 { font-size: 28px; }
  .hero-stats { gap: 16px; }
  .stat-item b { font-size: 18px; }
  .portal-sec { padding: 44px 0; }
  .sec-header { margin-bottom: 24px; }
  .sec-header h2 { font-size: 22px; }
  .quick-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .quick-card { padding: 16px 10px; }
  .qic { width: 32px; height: 32px; font-size: 14px; border-radius: 8px; }
  .service-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .tut-short { grid-template-columns: 1fr; }
  .rank-shortcuts { grid-template-columns: repeat(2, 1fr); }
  .foot-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .foot-bottom { flex-direction: column; gap: 6px; text-align: center; }
  .cta-banner { flex-direction: column; text-align: center; gap: 16px; padding: 24px 20px; }
  .bottomnav { display: flex; }
  .portal-foot { padding-bottom: 78px; }
  .uname { display: none; }
  .admin-layout { flex-direction: column; }
  .admin-sidebar { width: 100%; padding: 14px; }
  .admin-sidebar a { display: inline-block; padding: 6px 10px; border-left: none; border-radius: 6px; }
  .admin-content { padding: 16px; }
  .trending-item { flex-direction: column; gap: 6px; }
}

@media (max-width: 480px) {
  .wrap { padding: 0 14px; }
  .hero-search { flex-direction: column; align-items: stretch; padding: 8px; gap: 6px; }
  .hero-search button { width: 100%; }
}