:root {
    --bg-primary: #f6f5f1;
    --bg-secondary: #ffffff;
    --bg-card: #ffffff;
    --bg-card-hover: #fafaf8;
    --bg-sidebar: #eeece6;
    --border: #e2e0d8;
    --border-active: #0d9b7a;
    --accent: #0d9b7a;
    --accent-dim: rgba(13,155,122,0.08);
    --accent-glow: rgba(13,155,122,0.15);
    --text-primary: #1a1c1e;
    --text-secondary: #5f6368;
    --text-muted: #9aa0a6;
    --danger: #d93025;
    --warning: #d48806;
    --success: #0d9b7a;
    --info: #1a73e8;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.03);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.06), 0 1px 3px rgba(0,0,0,0.04);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.08);
  }

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

  body {
    font-family: 'Space Grotesk', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
  }

  /* 背景纹理 */
  body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
      radial-gradient(ellipse 800px 600px at 90% 10%, rgba(13,155,122,0.04) 0%, transparent 60%),
      radial-gradient(ellipse 600px 500px at 10% 80%, rgba(26,115,232,0.03) 0%, transparent 60%);
    pointer-events: none;
    z-index: 0;
  }

  /* 顶部导航 */
  .top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    z-index: 100;
    box-shadow: var(--shadow-sm);
  }

  .nav-left {
    display: flex;
    align-items: center;
    gap: 16px;
  }

  .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 18px;
    letter-spacing: -0.5px;
  }

  .logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--accent), #087a60);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: #fff;
    box-shadow: 0 2px 8px var(--accent-glow);
  }

  .logo span { color: var(--accent); }

  .nav-links {
    display: flex;
    gap: 4px;
    margin-left: 32px;
  }

  .nav-link {
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    background: none;
    font-family: inherit;
  }
  .nav-link:hover { color: var(--text-primary); background: rgba(0,0,0,0.03); }
  .nav-link.active { color: var(--accent); background: var(--accent-dim); }

  .nav-right {
    display: flex;
    align-items: center;
    gap: 20px;
  }

  .balance-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: var(--accent-dim);
    border: 1px solid rgba(13,155,122,0.15);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
  }
  .balance-badge i { font-size: 12px; }

  .user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 8px;
    transition: background 0.2s;
  }
  .user-info:hover { background: rgba(0,0,0,0.03); }

  .user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
  }

  .user-email {
    font-size: 12px;
    color: var(--text-secondary);
    max-width: 160px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .notification-btn {
    position: relative;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: none;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
  }
  .notification-btn:hover { color: var(--text-primary); border-color: var(--text-muted); background: rgba(0,0,0,0.02); }
  .notification-btn .dot {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 7px;
    height: 7px;
    background: var(--danger);
    border-radius: 50%;
    border: 2px solid #fff;
  }

  /* 主布局 */
  .main-layout {
    display: flex;
    margin-top: 60px;
    min-height: calc(100vh - 60px);
    position: relative;
    z-index: 1;
  }

  /* 侧边栏 */
  .sidebar {
    width: 280px;
    min-width: 280px;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    padding: 20px 0;
    overflow-y: auto;
    height: calc(100vh - 60px);
    position: sticky;
    top: 60px;
  }

  .sidebar::-webkit-scrollbar { width: 4px; }
  .sidebar::-webkit-scrollbar-track { background: transparent; }
  .sidebar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

  .sidebar-section {
    padding: 0 16px;
    margin-bottom: 24px;
  }

  .sidebar-title {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    margin-bottom: 12px;
    padding: 0 8px;
  }

  .service-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s;
    margin-bottom: 2px;
  }
  .service-item:hover { background: rgba(255,255,255,0.6); }
  .service-item.active { background: #fff; box-shadow: var(--shadow-sm); }

  .service-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    flex-shrink: 0;
  }

  .service-icon.fb { background: rgba(24,119,242,0.1); color: #1877f2; }
  .service-icon.fiverr { background: rgba(0,175,80,0.1); color: #00af50; }
  .service-icon.wa { background: rgba(37,211,102,0.1); color: #25d366; }
  .service-icon.telegram { background: rgba(36,161,222,0.1); color: #24a1de; }
  .service-icon.twitter { background: rgba(29,161,242,0.1); color: #1da1f2; }
  .service-icon.amazon { background: rgba(255,153,0,0.1); color: #e68a00; }
  .service-icon.google { background: rgba(66,133,244,0.1); color: #4285f4; }
  .service-icon.instagram { background: rgba(225,48,108,0.1); color: #e1306c; }
  .service-icon.tiktok { background: rgba(255,0,80,0.08); color: #cc0044; }
  .service-icon.discord { background: rgba(88,101,242,0.1); color: #5865f2; }
  .service-icon.microsoft { background: rgba(0,120,212,0.1); color: #0078d4; }
  .service-icon.uber { background: rgba(0,0,0,0.06); color: #333; }
  .service-icon.paypal { background: rgba(0,48,135,0.1); color: #003087; }
  .service-icon.lyft { background: rgba(255,0,80,0.06); color: #cc0044; }
  .service-icon.steam { background: rgba(102,192,244,0.1); color: #4a90b8; }
  .service-icon.other { background: rgba(0,0,0,0.05); color: var(--text-secondary); }

  .service-info { flex: 1; min-width: 0; }
  .service-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .service-region {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
  }

  .service-price {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    white-space: nowrap;
  }

  /* 搜索框 */
  .search-box {
    padding: 0 16px;
    margin-bottom: 20px;
  }

  .search-input-wrap {
    position: relative;
  }

  .search-input-wrap i {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 13px;
  }

  .search-input {
    width: 100%;
    padding: 10px 12px 10px 36px;
    background: rgba(255,255,255,0.7);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 13px;
    font-family: inherit;
    outline: none;
    transition: all 0.2s;
  }
  .search-input::placeholder { color: var(--text-muted); }
  .search-input:focus { border-color: var(--accent); background: #fff; box-shadow: 0 0 0 3px var(--accent-dim); }

  /* 主内容区 */
  .main-content {
    flex: 1;
    padding: 24px 28px;
    overflow-y: auto;
  }

  .page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
  }

  .page-title {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.5px;
  }

  .page-actions {
    display: flex;
    gap: 10px;
  }

  .btn {
    padding: 9px 18px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }

  .btn-primary {
    background: linear-gradient(135deg, var(--accent), #087a60);
    color: #fff;
    box-shadow: 0 2px 8px var(--accent-glow);
  }
  .btn-primary:hover { box-shadow: 0 4px 16px var(--accent-glow); transform: translateY(-1px); }

  .btn-secondary {
    background: #fff;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
  }
  .btn-secondary:hover { background: var(--bg-primary); color: var(--text-primary); }

  /* 统计卡片 */
  .stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 28px;
  }

  .stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 18px 20px;
    transition: all 0.3s;
    box-shadow: var(--shadow-sm);
  }
  .stat-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }

  .stat-label {
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 8px;
  }

  .stat-value {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -1px;
  }
  .stat-value.green { color: var(--accent); }
  .stat-value.blue { color: var(--info); }
  .stat-value.yellow { color: var(--warning); }
  .stat-value.red { color: var(--danger); }

  .stat-change {
    font-size: 11px;
    margin-top: 6px;
    display: flex;
    align-items: center;
    gap: 4px;
  }
  .stat-change.up { color: var(--accent); }
  .stat-change.down { color: var(--danger); }

  /* 活跃号码区域 */
  .section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
  }

  .section-title {
    font-size: 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .section-title .count-badge {
    background: var(--accent-dim);
    color: var(--accent);
    font-size: 11px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 10px;
  }

  .active-numbers {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 32px;
  }

  .number-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 20px;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
  }
  .number-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    border-radius: 3px 0 0 3px;
  }
  .number-card.waiting::before { background: var(--warning); }
  .number-card.received::before { background: var(--accent); }
  .number-card.expired::before { background: var(--danger); }

  .number-card:hover { box-shadow: var(--shadow-md); }

  .number-top {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 14px;
  }

  .number-left {
    display: flex;
    align-items: center;
    gap: 14px;
  }

  .number-service-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
  }

  .number-service-name {
    font-size: 15px;
    font-weight: 600;
  }
  .number-region-tag {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 3px;
    display: flex;
    align-items: center;
    gap: 4px;
  }

  .number-right {
    text-align: right;
  }

  .number-phone {
    font-family: 'JetBrains Mono', monospace;
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.5px;
  }

  .number-timer {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    margin-top: 4px;
    display: flex;
    align-items: center;
    gap: 6px;
    justify-content: flex-end;
  }
  .number-timer.waiting { color: var(--warning); }
  .number-timer.received { color: var(--accent); }
  .number-timer.expired { color: var(--danger); }

  .timer-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    animation: pulse-dot 1.5s infinite;
  }
  .waiting .timer-dot { background: var(--warning); }
  .received .timer-dot { background: var(--accent); animation: none; }
  .expired .timer-dot { background: var(--danger); animation: none; }

  @keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(0.7); }
  }

  .number-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 14px;
    border-top: 1px solid var(--border);
  }

  .number-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 500;
  }

  .status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
  }
  .status-dot.waiting { background: var(--warning); box-shadow: 0 0 8px rgba(212,136,6,0.3); }
  .status-dot.received { background: var(--accent); box-shadow: 0 0 8px rgba(13,155,122,0.3); }
  .status-dot.expired { background: var(--danger); }
  .status-text.waiting { color: var(--warning); }
  .status-text.received { color: var(--accent); }
  .status-text.expired { color: var(--danger); }

  .number-cost {
    font-size: 12px;
    color: var(--text-muted);
  }

  .number-actions {
    display: flex;
    gap: 8px;
  }

  .btn-sm {
    padding: 6px 12px;
    font-size: 11px;
    border-radius: 8px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 5px;
  }
  .btn-sm.copy {
    background: var(--accent-dim);
    color: var(--accent);
  }
  .btn-sm.copy:hover { background: rgba(13,155,122,0.15); }
  .btn-sm.cancel {
    background: rgba(217,48,37,0.06);
    color: var(--danger);
  }
  .btn-sm.cancel:hover { background: rgba(217,48,37,0.12); }
  .btn-sm.refresh {
    background: rgba(26,115,232,0.06);
    color: var(--info);
  }
  .btn-sm.refresh:hover { background: rgba(26,115,232,0.12); }

  /* 短信内容展示 */
  .sms-content {
    margin-top: 12px;
    background: linear-gradient(135deg, rgba(13,155,122,0.04), rgba(13,155,122,0.08));
    border: 1px solid rgba(13,155,122,0.12);
    border-radius: 10px;
    padding: 14px 16px;
    animation: fadeIn 0.4s;
  }

  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(-6px); }
    to { opacity: 1; transform: translateY(0); }
  }

  .sms-code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 28px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 4px;
    text-align: center;
    padding: 8px 0;
  }

  .sms-text {
    font-size: 12px;
    color: var(--text-secondary);
    text-align: center;
    margin-top: 4px;
    line-height: 1.5;
  }

  .sms-time {
    font-size: 10px;
    color: var(--text-muted);
    text-align: center;
    margin-top: 8px;
  }

  /* 空状态 */
  .empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
  }
  .empty-state i {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.25;
  }
  .empty-state p {
    font-size: 14px;
    margin-top: 8px;
  }

  /* 弹窗 */
  .modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.3);
    backdrop-filter: blur(6px);
    z-index: 200;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s;
  }
  .modal-overlay.show { display: flex; }

  .modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 20px;
    width: 520px;
    max-width: 90vw;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: modalIn 0.3s ease;
  }

  @keyframes modalIn {
    from { opacity: 0; transform: scale(0.95) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
  }

  .modal-header {
    padding: 24px 24px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .modal-title {
    font-size: 18px;
    font-weight: 700;
  }

  .modal-close {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: rgba(0,0,0,0.04);
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .modal-close:hover { background: rgba(217,48,37,0.08); color: var(--danger); }

  .modal-body { padding: 20px 24px 24px; }

  .form-group {
    margin-bottom: 18px;
  }

  .form-label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
  }

  .form-select {
    width: 100%;
    padding: 11px 14px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    outline: none;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%235f6368' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    transition: all 0.2s;
  }
  .form-select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-dim); }
  .form-select option { background: #fff; color: var(--text-primary); }

  .number-options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 8px;
  }

  .number-option {
    padding: 14px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
  }
  .number-option:hover { border-color: var(--text-muted); background: #fff; }
  .number-option.selected { border-color: var(--accent); background: var(--accent-dim); box-shadow: 0 0 0 3px rgba(13,155,122,0.08); }

  .number-option .phone {
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
  }
  .number-option .price {
    font-size: 11px;
    color: var(--accent);
    margin-top: 6px;
    font-weight: 600;
  }

  .modal-footer {
    padding: 0 24px 24px;
    display: flex;
    gap: 10px;
    justify-content: flex-end;
  }

  /* 历史记录 */
  .history-section { margin-top: 8px; }

  .history-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  .history-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    transition: all 0.2s;
    box-shadow: var(--shadow-sm);
  }
  .history-item:hover { box-shadow: var(--shadow-md); }

  .history-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
  }

  .history-info { flex: 1; }
  .history-service {
    font-size: 13px;
    font-weight: 600;
  }
  .history-detail {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 3px;
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .history-code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    font-weight: 600;
    color: var(--accent);
  }

  .history-status {
    font-size: 10px;
    padding: 3px 8px;
    border-radius: 6px;
    font-weight: 600;
  }
  .history-status.success { background: var(--accent-dim); color: var(--accent); }
  .history-status.failed { background: rgba(217,48,37,0.06); color: var(--danger); }

  /* Toast 通知 */
  .toast-container {
    position: fixed;
    top: 76px;
    right: 24px;
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: 8px;
  }

  .toast {
    padding: 12px 20px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 12px;
    font-size: 13px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow-lg);
    animation: toastIn 0.3s ease, toastOut 0.3s ease 2.7s forwards;
    min-width: 260px;
    color: var(--text-primary);
  }
  .toast.success { border-left: 3px solid var(--accent); }
  .toast.error { border-left: 3px solid var(--danger); }
  .toast.info { border-left: 3px solid var(--info); }

  @keyframes toastIn {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
  }
  @keyframes toastOut {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(40px); }
  }

  /* 筛选标签 */
  .filter-tabs {
    display: flex;
    gap: 6px;
    margin-bottom: 20px;
  }

  .filter-tab {
    padding: 7px 16px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    background: rgba(0,0,0,0.02);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
  }
  .filter-tab:hover { color: var(--text-secondary); background: rgba(0,0,0,0.04); }
  .filter-tab.active { color: var(--accent); background: var(--accent-dim); border-color: rgba(13,155,122,0.12); }

  /* 进度条 */
  .timer-bar {
    height: 2px;
    background: var(--border);
    border-radius: 1px;
    margin-top: 10px;
    overflow: hidden;
  }
  .timer-bar-fill {
    height: 100%;
    border-radius: 1px;
    transition: width 1s linear;
  }
  .waiting .timer-bar-fill { background: var(--warning); }
  .received .timer-bar-fill { background: var(--accent); }
  .expired .timer-bar-fill { background: var(--danger); }

  /* 代码块样式 */
  .code-block {
    background: #1a1c1e;
    border-radius: 10px;
    padding: 16px;
    margin-bottom: 16px;
    overflow-x: auto;
  }
  .code-block pre {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    line-height: 1.8;
    margin: 0;
  }

  /* FAQ */
  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }

  /* 定价卡片高亮 */
  .pricing-highlight {
    border-color: var(--accent) !important;
    background: linear-gradient(180deg, rgba(13,155,122,0.04), rgba(13,155,122,0.01)) !important;
    position: relative;
  }
  .pricing-highlight::after {
    content: 'Popular';
    position: absolute;
    top: -1px;
    right: 20px;
    background: var(--accent);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 0 0 6px 6px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
  }

  /* 响应式 */
  @media (max-width: 1024px) {
    .sidebar { width: 240px; min-width: 240px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
  }

  @media (max-width: 768px) {
    .sidebar { display: none; }
    .nav-links { display: none; }
    .user-email { display: none; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .main-content { padding: 16px; }
    .number-top { flex-direction: column; gap: 12px; }
    .number-right { text-align: left; }
    .number-timer { justify-content: flex-start; }
    .number-options { grid-template-columns: 1fr; }
  }

  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: 0.01ms !important;
      transition-duration: 0.01ms !important;
    }
  }