/* ==========================================================================
   WQuake 官网样式 —— WAuth 风格
   主色：白（浅背景 + 半透明玻璃卡片）   副色：黑（文字 / 主按钮 / 强调）
   ========================================================================== */

:root {
  /* 中性色（黑白灰） */
  --ink: rgba(0, 0, 0, 0.88);
  --ink-2: rgba(0, 0, 0, 0.6);
  --ink-3: rgba(0, 0, 0, 0.45);
  --ink-4: rgba(0, 0, 0, 0.28);

  /* 副色：黑 —— 主按钮/强调 */
  --accent: #111111;
  --accent-hover: #000000;

  /* 语义色（仅图标点缀，保持克制） */
  --green: #16a34a;
  --blue: #2563eb;
  --red: #dc2626;
  --yellow: #d97706;
  --orange: #ea580c;
  --purple: #7c3aed;

  /* 主色：白 —— 背景/卡片 */
  --bg: #f5f7fa;
  --bg-elevated: #ffffff;
  --card-bg: rgba(255, 255, 255, 0.72);
  --card-bg-solid: #ffffff;
  --card-border: rgba(0, 0, 0, 0.07);
  --card-border-strong: rgba(0, 0, 0, 0.12);

  /* 软阴影（WAuth 层叠风格） */
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 10px 30px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 4px 8px rgba(0, 0, 0, 0.06), 0 18px 48px rgba(0, 0, 0, 0.12);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);

  --radius: 16px;
  --radius-sm: 10px;
  --radius-pill: 999px;
  --header-height: 64px;
  --max-width: 1200px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC',
    'Hiragino Sans GB', 'Microsoft YaHei', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--accent); text-decoration: none; transition: color 0.2s, opacity 0.2s; }
a:hover { opacity: 0.7; }

/* ========== 顶部导航 ========== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--card-border);
  z-index: 1000;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  padding: 0 32px;
  gap: 28px;
}

.header-logo { display: flex; align-items: center; flex-shrink: 0; }
.logo-img { height: 40px; object-fit: contain; }

.header-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  color: var(--ink-2);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.2s, background 0.2s;
}
.nav-link:hover { color: var(--ink); background: rgba(0, 0, 0, 0.045); opacity: 1; }
.nav-link-active { color: var(--ink); background: rgba(0, 0, 0, 0.06); font-weight: 600; }

.nav-icon { font-size: 13px; display: inline-block; width: 16px; text-align: center; }

/* ========== 右上角用户菜单 ========== */
.header-actions { display: flex; align-items: center; gap: 12px; margin-left: auto; flex-shrink: 0; }

.btn-login {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  border-radius: var(--radius-pill);
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  transition: background 0.2s, transform 0.2s;
}
.btn-login:hover { background: var(--accent-hover); color: #fff; opacity: 1; transform: translateY(-1px); }

.user-menu { position: relative; }

.user-trigger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px 6px 6px;
  border-radius: var(--radius-pill);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  font: inherit;
  transition: box-shadow 0.2s, border-color 0.2s;
}
.user-menu:hover .user-trigger { box-shadow: var(--shadow); border-color: var(--card-border-strong); }

.user-avatar {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 600;
  flex-shrink: 0;
  text-transform: uppercase;
}

.user-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.user-caret { color: var(--ink-3); transition: transform 0.2s; }
.user-menu:hover .user-caret,
.user-menu.open .user-caret { transform: rotate(180deg); }

.user-dropdown {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 220px;
  padding: 8px;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hover);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.18s, transform 0.18s, visibility 0.18s;
  z-index: 1100;
}
.user-menu.open .user-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.user-dropdown-header {
  padding: 10px 12px;
  border-bottom: 1px solid var(--card-border);
  margin-bottom: 6px;
}
.user-dropdown-name { font-size: 14px; font-weight: 600; color: var(--ink); }
.user-dropdown-sub { font-size: 12px; color: var(--ink-3); margin-top: 2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.user-dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--ink-2);
  font-size: 14px;
  transition: background 0.15s, color 0.15s;
}
.user-dropdown-item:hover { background: rgba(0, 0, 0, 0.05); color: var(--ink); opacity: 1; }
.user-dropdown-item svg { flex-shrink: 0; opacity: 0.7; }
.user-dropdown-item-danger { color: var(--red); }
.user-dropdown-item-danger:hover { background: rgba(220, 38, 38, 0.08); color: var(--red); }

/* ========== 页面主体 ========== */
.site-main {
  margin-top: var(--header-height);
  min-height: calc(100vh - var(--header-height) - 200px);
}

.container { max-width: var(--max-width); margin: 0 auto; padding: 48px 24px; }

/* ========== Hero ========== */
.hero {
  position: relative;
  padding: 120px 24px 96px;
  text-align: center;
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(0, 0, 0, 0.05), transparent 70%),
    var(--bg);
}

.hero-inner { position: relative; max-width: 760px; margin: 0 auto; }
.hero-logo { height: 76px; object-fit: contain; margin-bottom: 28px; }

.hero h1 {
  font-size: 52px;
  font-weight: 800;
  letter-spacing: -1.5px;
  color: var(--ink);
  margin-bottom: 18px;
}

.hero-subtitle { font-size: 18px; color: var(--ink-2); margin-bottom: 44px; line-height: 1.8; }

.hero-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

.btn-hero {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 600;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s, border-color 0.2s;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn-hero-primary { background: var(--accent); color: #fff; box-shadow: var(--shadow); }
.btn-hero-primary:hover { background: var(--accent-hover); color: #fff; opacity: 1; transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.btn-hero-outline {
  background: var(--card-bg);
  color: var(--ink);
  border: 1px solid var(--card-border-strong);
  backdrop-filter: blur(8px);
}
.btn-hero-outline:hover { border-color: var(--accent); color: var(--ink); opacity: 1; transform: translateY(-2px); box-shadow: var(--shadow); }

/* ========== 通用区块标题 ========== */
.section-title {
  text-align: center;
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.8px;
  color: var(--ink);
}
/* 兼容旧 -light/-dark 变体：统一为浅底深字 */
.section-title-light, .section-title-dark { color: var(--ink); }

.section-desc { text-align: center; font-size: 16px; color: var(--ink-2); margin-bottom: 60px; }
.section-desc-light, .section-desc-dark { color: var(--ink-2); }

/* ========== 功能卡片 ========== */
.features { padding: 96px 24px; }
.features-inner { max-width: var(--max-width); margin: 0 auto; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--card-bg);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 30px;
  box-shadow: var(--shadow);
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--card-border-strong);
}

.feature-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.feature-icon svg { width: 26px; height: 26px; }
.feature-icon-green { background: rgba(22, 163, 74, 0.1); color: var(--green); }
.feature-icon-blue { background: rgba(37, 99, 235, 0.1); color: var(--blue); }
.feature-icon-red { background: rgba(220, 38, 38, 0.1); color: var(--red); }
.feature-icon-yellow { background: rgba(217, 119, 6, 0.1); color: var(--yellow); }
.feature-icon-orange { background: rgba(234, 88, 12, 0.1); color: var(--orange); }
.feature-icon-purple { background: rgba(124, 58, 237, 0.1); color: var(--purple); }

.feature-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; color: var(--ink); }
.feature-card p { font-size: 14px; color: var(--ink-2); line-height: 1.7; }

/* ========== 数据源标签 ========== */
.sources-section { padding: 80px 24px 96px; border-top: 1px solid var(--card-border); }
.source-tags { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; max-width: 820px; margin: 0 auto; }
.source-tag {
  display: inline-flex;
  align-items: center;
  padding: 9px 18px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-pill);
  font-size: 13px;
  color: var(--ink-2);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s, color 0.2s;
}
.source-tag:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: var(--card-border-strong); color: var(--ink); }

/* ========== 下载页 ========== */
.download-section { padding: 64px 24px; }
.download-card {
  background: var(--card-bg);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 44px;
  max-width: 580px;
  margin: 0 auto;
  text-align: center;
  box-shadow: var(--shadow);
}
.download-card h2 { font-size: 24px; font-weight: 700; margin-bottom: 8px; color: var(--ink); }
.download-version {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 14px;
  background: rgba(0, 0, 0, 0.05);
  color: var(--ink);
  border-radius: var(--radius-pill);
  font-size: 13px; font-weight: 600;
  margin-bottom: 24px;
}
.download-info { color: var(--ink-2); font-size: 14px; margin-bottom: 28px; line-height: 1.7; }
.btn-download-lg {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 44px;
  background: var(--accent);
  color: #fff; border-radius: var(--radius-pill);
  font-size: 16px; font-weight: 600; border: none; cursor: pointer;
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}
.btn-download-lg:hover { background: var(--accent-hover); color: #fff; opacity: 1; transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.download-requirements { margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--card-border); text-align: left; }
.download-requirements h4 { font-size: 14px; font-weight: 600; margin-bottom: 12px; color: var(--ink-2); }
.req-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.req-list li { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--ink-3); }
.req-list li::before { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }

/* ========== 文档页 ========== */
.docs-layout { display: grid; grid-template-columns: 230px 1fr; gap: 40px; max-width: var(--max-width); margin: 0 auto; padding: 48px 24px; }
.docs-sidebar { position: sticky; top: calc(var(--header-height) + 24px); align-self: start; }
.docs-nav { display: flex; flex-direction: column; gap: 2px; }
.docs-nav-link { display: flex; align-items: center; gap: 8px; padding: 10px 14px; border-radius: var(--radius-sm); color: var(--ink-2); font-size: 14px; transition: color 0.2s, background 0.2s; }
.docs-nav-link:hover { color: var(--ink); background: rgba(0, 0, 0, 0.045); opacity: 1; }
.docs-nav-link.active { color: var(--ink); background: rgba(0, 0, 0, 0.06); font-weight: 600; }
.docs-content { min-width: 0; }
.docs-content h2 { font-size: 24px; font-weight: 700; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--card-border); color: var(--ink); }
.docs-content h3 { font-size: 18px; font-weight: 600; margin: 32px 0 12px; color: var(--ink); }
.docs-content p { font-size: 14px; line-height: 1.8; color: var(--ink-2); margin-bottom: 16px; }
.code-block { background: #1a1a1a; color: #e6e6e6; border-radius: var(--radius-sm); padding: 16px 20px; font-family: 'JetBrains Mono', 'Consolas', 'Monaco', monospace; font-size: 13px; line-height: 1.6; overflow-x: auto; margin-bottom: 24px; }
.code-block .key { color: #7ee787; }
.code-block .str { color: #ffa657; }
.code-block .comment { color: #8b949e; }
.api-table { width: 100%; border-collapse: collapse; margin-bottom: 24px; font-size: 14px; background: var(--card-bg-solid); border-radius: var(--radius-sm); overflow: hidden; box-shadow: var(--shadow-sm); }
.api-table th, .api-table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--card-border); }
.api-table th { font-size: 12px; color: var(--ink-3); text-transform: uppercase; letter-spacing: 0.5px; background: rgba(0, 0, 0, 0.02); }
.api-table td { color: var(--ink-2); }
.api-method { display: inline-flex; padding: 2px 8px; border-radius: 4px; font-size: 12px; font-weight: 700; font-family: monospace; }
.method-get { background: rgba(22, 163, 74, 0.1); color: var(--green); }
.method-post { background: rgba(37, 99, 235, 0.1); color: var(--blue); }

/* ========== 关于页 ========== */
.about-hero { text-align: center; padding: 72px 24px 32px; }
.about-hero-logo { height: 60px; object-fit: contain; margin-bottom: 16px; }
.about-content-wrap { max-width: 760px; margin: 0 auto; padding: 0 24px 72px; }
.about-card {
  background: var(--card-bg);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}
.about-card h3 { font-size: 18px; font-weight: 600; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; color: var(--ink); }
.about-card p, .about-card li { font-size: 14px; color: var(--ink-2); line-height: 1.8; }
.about-card ul { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.about-card li::before { content: ''; display: inline-block; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); margin-right: 10px; vertical-align: middle; }

/* ========== 个人中心 ========== */
.profile-wrap { max-width: 720px; margin: 0 auto; padding: 56px 24px 72px; }

.profile-hero {
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 32px;
  margin-bottom: 24px;
  background: var(--card-bg);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.profile-avatar-lg {
  width: 76px; height: 76px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 34px; font-weight: 700;
  text-transform: uppercase;
  box-shadow: var(--shadow);
}
.profile-hero-info { min-width: 0; }
.profile-name { font-size: 26px; font-weight: 700; color: var(--ink); margin-bottom: 4px; letter-spacing: -0.5px; }
.profile-sub { font-size: 14px; color: var(--ink-3); margin-bottom: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.profile-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 12px;
  background: rgba(0, 0, 0, 0.05);
  color: var(--ink-2);
  border-radius: var(--radius-pill);
  font-size: 12px; font-weight: 500;
}
.profile-badge svg { opacity: 0.7; }

.profile-card {
  padding: 32px;
  background: var(--card-bg);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.profile-card-title { font-size: 16px; font-weight: 600; color: var(--ink); margin-bottom: 8px; }
.profile-info { display: flex; flex-direction: column; }
.profile-info-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--card-border);
}
.profile-info-row:last-child { border-bottom: none; }
.profile-info-label { font-size: 14px; color: var(--ink-3); flex-shrink: 0; }
.profile-info-value { font-size: 14px; font-weight: 500; color: var(--ink); text-align: right; word-break: break-all; }
.profile-info-mono { font-family: 'JetBrains Mono', 'Consolas', monospace; font-size: 13px; }
.profile-actions { display: flex; gap: 12px; margin-top: 24px; flex-wrap: wrap; }
.btn-hero-danger { background: var(--red); color: #fff; box-shadow: var(--shadow); }
.btn-hero-danger:hover { background: #b91c1c; color: #fff; opacity: 1; transform: translateY(-2px); box-shadow: var(--shadow-hover); }

/* ========== 页脚 ========== */
.site-footer { border-top: 1px solid var(--card-border); padding: 56px 24px 28px; background: var(--bg-elevated); }
.footer-inner { max-width: var(--max-width); margin: 0 auto; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 32px; border-bottom: 1px solid var(--card-border); }
.footer-brand { display: flex; flex-direction: column; gap: 12px; }
.footer-logo-img { height: 32px; object-fit: contain; }
.footer-desc { font-size: 13px; color: var(--ink-3); line-height: 1.6; }
.footer-title { font-size: 13px; font-weight: 600; color: var(--ink); margin-bottom: 16px; }
.footer-link { display: block; font-size: 13px; color: var(--ink-2); margin-bottom: 10px; }
.footer-link:hover { color: var(--ink); opacity: 1; }
.footer-text { font-size: 13px; color: var(--ink-3); margin-bottom: 6px; }
.footer-bottom { padding-top: 20px; text-align: center; font-size: 12px; color: var(--ink-3); }

/* ========== 后台管理 ========== */
.admin-wrap { max-width: 900px; margin: 0 auto; padding: 48px 24px; }
.admin-login {
  max-width: 400px; margin: 96px auto; padding: 44px 40px;
  background: var(--card-bg);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.admin-login h2 { text-align: center; margin-bottom: 28px; font-size: 24px; color: var(--ink); }
.admin-login input[type="password"], .admin-login input[type="text"] {
  width: 100%; padding: 12px 16px;
  background: #fff;
  border: 1px solid var(--card-border-strong);
  border-radius: var(--radius-sm);
  color: var(--ink); font-size: 14px; margin-bottom: 16px; outline: none;
  transition: border 0.2s, box-shadow 0.2s;
}
.admin-login input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.06); }
.admin-login button {
  width: 100%; padding: 12px;
  background: var(--accent); color: #fff; border: none; border-radius: var(--radius-sm);
  font-size: 15px; font-weight: 600; cursor: pointer; transition: background 0.2s, transform 0.2s;
}
.admin-login button:hover { background: var(--accent-hover); transform: translateY(-1px); }

.admin-panel {
  background: var(--card-bg);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow);
}
.admin-panel h2 { font-size: 22px; margin-bottom: 28px; color: var(--ink); }

.admin-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 32px; }
.admin-stat { background: var(--bg-elevated); border: 1px solid var(--card-border); border-radius: var(--radius-sm); padding: 20px; text-align: center; box-shadow: var(--shadow-sm); }
.admin-stat-value { font-size: 28px; font-weight: 700; color: var(--ink); }
.admin-stat-label { font-size: 12px; color: var(--ink-3); margin-top: 4px; text-transform: uppercase; letter-spacing: 0.5px; }

.admin-field { margin-bottom: 20px; }
.admin-field label { display: block; font-size: 13px; font-weight: 600; color: var(--ink-2); margin-bottom: 6px; }
.admin-field input, .admin-field textarea, .admin-field select {
  width: 100%; padding: 10px 14px;
  background: #fff; border: 1px solid var(--card-border-strong); border-radius: var(--radius-sm);
  color: var(--ink); font-size: 14px; outline: none; transition: border 0.2s, box-shadow 0.2s; font-family: inherit;
}
.admin-field input:focus, .admin-field textarea:focus, .admin-field select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.06); }
.admin-field textarea { min-height: 120px; resize: vertical; }

.admin-btn { padding: 10px 24px; background: var(--accent); color: #fff; border: none; border-radius: var(--radius-sm); font-size: 14px; font-weight: 600; cursor: pointer; transition: background 0.2s, transform 0.2s; }
.admin-btn:hover { background: var(--accent-hover); transform: translateY(-1px); }
.admin-btn-sm { padding: 6px 14px; font-size: 12px; }
.admin-btn-danger { background: var(--red); }
.admin-btn-danger:hover { background: #b91c1c; }
.admin-btn-outline { background: transparent; border: 1px solid var(--card-border-strong); color: var(--ink-2); }
.admin-btn-outline:hover { border-color: var(--accent); color: var(--ink); background: transparent; }

.admin-msg { padding: 12px 16px; border-radius: var(--radius-sm); margin-bottom: 20px; font-size: 14px; }
.admin-msg-success { background: rgba(22, 163, 74, 0.08); color: var(--green); border: 1px solid rgba(22, 163, 74, 0.2); }
.admin-msg-error { background: rgba(220, 38, 38, 0.08); color: var(--red); border: 1px solid rgba(220, 38, 38, 0.2); }

.admin-version-info { background: var(--bg-elevated); border: 1px solid var(--card-border); border-radius: var(--radius-sm); padding: 16px; margin-bottom: 28px; font-size: 13px; color: var(--ink-2); }
.admin-version-info code { background: rgba(0, 0, 0, 0.05); padding: 2px 6px; border-radius: 4px; font-family: monospace; color: var(--ink); }

.admin-table { width: 100%; border-collapse: collapse; margin-top: 24px; font-size: 13px; }
.admin-table th, .admin-table td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--card-border); }
.admin-table th { font-size: 11px; color: var(--ink-3); text-transform: uppercase; letter-spacing: 0.5px; font-weight: 600; }
.admin-table td { color: var(--ink-2); }
.admin-table tr:hover td { background: rgba(0, 0, 0, 0.02); }

.admin-tabs { display: flex; gap: 4px; margin-bottom: 28px; border-bottom: 1px solid var(--card-border); padding-bottom: 4px; }
.admin-tab { padding: 8px 16px; border-radius: var(--radius-sm) var(--radius-sm) 0 0; font-size: 13px; font-weight: 500; color: var(--ink-3); cursor: pointer; border: none; background: none; transition: color 0.2s, background 0.2s; }
.admin-tab:hover { color: var(--ink); }
.admin-tab-active { color: var(--ink); background: rgba(0, 0, 0, 0.05); }

/* ========== 响应式 ========== */
@media (max-width: 768px) {
  .header-inner { padding: 0 16px; gap: 12px; }
  .header-nav { display: none; }
  .user-name { display: none; }
  .hero { padding: 88px 24px 64px; }
  .hero h1 { font-size: 34px; }
  .hero-subtitle { font-size: 15px; }
  .features { padding: 60px 24px; }
  .feature-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .docs-layout { grid-template-columns: 1fr; }
  .docs-sidebar { position: static; }
  .admin-stats { grid-template-columns: 1fr 1fr; }
}