:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --border: #e5e7eb;
  --text: #1f2329;
  --text-2: #6b7280;
  --primary: #3b82f6;
  --primary-dark: #2563eb;
  --danger: #ef4444;
  --success: #10b981;
  --warning: #f59e0b;
  --radius: 8px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
}

.hidden { display: none !important; }
.view { min-height: 100vh; }
.active { display: block; }

/* 按钮 */
.btn {
  display: inline-block;
  padding: 8px 16px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 14px;
  transition: all .15s;
  background: #fff;
  color: var(--text);
}
.btn:hover { opacity: .9; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-danger { background: #fff; color: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; }
.btn-warning { background: #fff; color: var(--warning); border-color: var(--warning); }
.btn-warning:hover { background: var(--warning); color: #fff; }
.btn-ghost { background: transparent; color: var(--text-2); }
.btn-ghost:hover { color: var(--text); }
.btn-block { width: 100%; }
.btn-sm { padding: 4px 10px; font-size: 13px; }

/* 登录 */
.login-box {
  width: 380px;
  max-width: 92vw;
  margin: 10vh auto;
  background: var(--card);
  border-radius: 12px;
  padding: 40px 32px;
  box-shadow: 0 4px 24px rgba(0,0,0,.08);
}
.login-box h1 { font-size: 22px; text-align: center; margin-bottom: 6px; }
.login-sub { text-align: center; color: var(--text-2); margin-bottom: 24px; font-size: 13px; }

.form-row { margin-bottom: 16px; }
.form-row label { display: block; margin-bottom: 6px; font-weight: 500; color: var(--text); }
.form-row input, .form-row select, .form-row textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 14px;
  font-family: inherit;
  background: #fff;
  color: var(--text);
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  outline: none;
  border-color: var(--primary);
}
.form-row textarea { resize: vertical; }
.form-inline { display: flex; gap: 16px; }
.form-col { flex: 1; }

.error-msg { color: var(--danger); font-size: 13px; min-height: 20px; margin-bottom: 8px; }
.result-msg { color: var(--text-2); font-size: 13px; min-height: 20px; margin: 8px 0; }
.result-msg .ok { color: var(--success); }
.result-msg .fail { color: var(--danger); }
.hint { color: var(--text-2); font-size: 12px; margin-top: 10px; }

/* 主界面布局 */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 56px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 100;
}
.topbar-title { font-size: 17px; font-weight: 600; }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.user-info { color: var(--text-2); font-size: 13px; }

.sidebar {
  position: fixed;
  top: 56px; left: 0; bottom: 0;
  width: 180px;
  background: var(--card);
  border-right: 1px solid var(--border);
  padding: 16px 0;
  overflow-y: auto;
}
.nav-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 12px 24px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 14px;
  color: var(--text-2);
  border-left: 3px solid transparent;
}
.nav-item:hover { background: #f9fafb; color: var(--text); }
.nav-item.active { color: var(--primary); border-left-color: var(--primary); background: #eff6ff; font-weight: 500; }

.content {
  margin-left: 180px;
  margin-top: 56px;
  padding: 24px;
}

.panel { display: none; }
.panel.active { display: block; }

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.panel-head h2 { font-size: 18px; }
.panel-tools { display: flex; align-items: center; gap: 8px; }
.page-size { padding: 6px 10px; border: 1px solid var(--border); border-radius: var(--radius); font-size: 13px; }

.card {
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 20px;
  margin-bottom: 16px;
}

/* 评论列表 */
.comment-list { display: flex; flex-direction: column; gap: 12px; }
.comment-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.comment-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--text-2);
  margin-bottom: 8px;
}
.comment-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
  word-break: break-all;
}
.synced-time { opacity: 0.7; }
.comment-link:hover { text-decoration: underline; }
.comment-user { display: inline-flex; align-items: center; gap: 6px; }
.comment-user a { color: var(--text); text-decoration: none; }
.comment-user a:hover { color: var(--primary); }
.avatar { width: 22px; height: 22px; border-radius: 50%; object-fit: cover; }
.comment-text { color: var(--text); word-break: break-word; margin-bottom: 6px; }
.comment-extra { font-size: 12px; color: var(--text-2); display: flex; gap: 12px; }
.tag {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 10px;
  font-size: 12px;
}
.tag-douyin { background: #1a1a1a; color: #fff; }
.tag-xhs { background: #fee2e2; color: #dc2626; }

/* 分页 */
.pager { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 20px; }
.pager button { padding: 6px 14px; border: 1px solid var(--border); border-radius: var(--radius); background: #fff; cursor: pointer; }
.pager button:disabled { opacity: .4; cursor: not-allowed; }
.pager .page-info { color: var(--text-2); font-size: 13px; }

/* tabs */
.tabs { display: flex; gap: 8px; margin-bottom: 16px; }
.tab {
  padding: 8px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  cursor: pointer;
  font-size: 14px;
}
.tab.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* 链接列表 */
.link-list { display: flex; flex-direction: column; gap: 12px; }
.link-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.link-item-top { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.link-status { font-size: 12px; padding: 2px 10px; border-radius: 10px; }
.status-active { background: #d1fae5; color: #065f46; }
.status-expired { background: #fee2e2; color: #991b1b; }
.status-disabled { background: #f3f4f6; color: #6b7280; }

/* 选择栏 */
.select-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 16px;
  margin-bottom: 12px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.checkbox-all { display: flex; align-items: center; gap: 6px; cursor: pointer; font-size: 13px; }
.checkbox-all input { cursor: pointer; }
.select-count { color: var(--primary); font-size: 13px; font-weight: 500; }
.link-check { width: 16px; height: 16px; cursor: pointer; flex-shrink: 0; }

/* 用户状态 */
.user-status { font-size: 12px; padding: 2px 8px; border-radius: 8px; }
.user-disabled { opacity: .6; }
.user-actions { margin-left: auto; display: flex; gap: 8px; }
.link-item .link-url { color: var(--primary); word-break: break-all; text-decoration: none; }
.link-item .link-url:hover { text-decoration: underline; }
.link-item-bottom { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; font-size: 13px; color: var(--text-2); }
.link-item-bottom label { display: flex; align-items: center; gap: 6px; }
.link-item-bottom input, .link-item-bottom select {
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 13px;
  width: 80px;
}
.link-item-actions { margin-left: auto; display: flex; gap: 8px; }

/* 用户列表 */
.user-list { display: flex; flex-direction: column; gap: 8px; }
.user-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.user-item .role-badge { font-size: 12px; padding: 2px 8px; border-radius: 8px; background: #eff6ff; color: var(--primary); }
.role-admin { background: #fef3c7 !important; color: #92400e !important; }
.role-supervisor { background: #e0e7ff !important; color: #3730a3 !important; }
.role-operator { background: #eff6ff !important; color: #2563eb !important; }

/* 空状态 */
.empty { text-align: center; color: var(--text-2); padding: 40px 0; }

/* 响应式 */
@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    top: 56px;
    left: 0;
    width: 100%;
    height: auto;
    bottom: auto;
    display: flex;
    overflow-x: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 0;
    z-index: 99;
  }
  .nav-item { border-left: none; border-bottom: 2px solid transparent; white-space: nowrap; padding: 12px 16px; }
  .nav-item.active { border-bottom-color: var(--primary); }
  .content { margin-left: 0; margin-top: 100px; padding: 16px; }
  .form-inline { flex-direction: column; gap: 0; }
}