/* ========== 应用中心样式 ========== */
:root {
    --primary: #1a1a2e;
    --primary-light: #16213e;
    --accent: #e94560;
    --accent-hover: #d13a54;
    --text: #333;
    --text-light: #666;
    --bg: #f8f9fa;
    --card-bg: #fff;
    --border: #e8e8e8;
    --radius: 12px;
    --shadow: 0 2px 12px rgba(0,0,0,0.06);
    --shadow-hover: 0 8px 30px rgba(0,0,0,0.12);
    --transition: 0.25s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

/* 导航 */
.navbar {
    background: var(--primary);
    color: #fff;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
.navbar-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}
.navbar-brand {
    font-size: 1.4rem;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    letter-spacing: 1px;
    white-space: nowrap;
}
.navbar-nav {
    display: flex;
    gap: 24px;
    align-items: center;
    flex-wrap: wrap;
    justify-content: flex-end;
}
.navbar-nav a {
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition);
    white-space: nowrap;
}
.navbar-nav a:hover { color: #fff; }
.navbar-nav .btn-small {
    padding: 6px 16px;
    border-radius: 20px;
    background: var(--accent);
    color: #fff;
    font-size: 0.85rem;
}
.navbar-nav .btn-small:hover { background: var(--accent-hover); }

/* 主容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 页面标题区 */
.page-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
    padding: 48px 0;
    text-align: center;
}
.page-header h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 8px;
}
.page-header p {
    opacity: 0.85;
    font-size: 1rem;
}

/* 筛选栏 */
.filter-bar {
    display: flex;
    gap: 12px;
    padding: 20px 0;
    flex-wrap: wrap;
    align-items: center;
}
.filter-bar a {
    padding: 8px 18px;
    border-radius: 20px;
    background: #fff;
    border: 1px solid var(--border);
    color: var(--text);
    text-decoration: none;
    font-size: 0.85rem;
    transition: all var(--transition);
    white-space: nowrap;
}
.filter-bar a:hover,
.filter-bar a.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}
.filter-bar input {
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 0.85rem;
    outline: none;
    flex: 1;
    max-width: 280px;
}

/* 应用网格 */
.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    padding: 24px 0 48px;
}
.app-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition);
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
}
.app-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}
.app-cover {
    height: 160px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 3rem;
    position: relative;
}
.app-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.app-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}
.app-badge.free { background: #22c55e; color: #fff; }
.app-badge.paid { background: var(--accent); color: #fff; }
.app-badge.theme { background: #3b82f6; color: #fff; }
.app-badge.plugin { background: #f59e0b; color: #fff; }

.app-body {
    padding: 18px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.app-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text);
}
.app-desc {
    font-size: 0.85rem;
    color: var(--text-light);
    line-height: 1.5;
    margin-bottom: 12px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.app-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-light);
}
.app-price {
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent);
}
.app-price.free { color: #22c55e; }

/* 应用详情页 */
.app-detail {
    padding: 40px 0;
}
.app-detail-header {
    display: flex;
    gap: 32px;
    margin-bottom: 32px;
}
.app-detail-icon {
    width: 120px;
    height: 120px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 3.5rem;
    flex-shrink: 0;
}
.app-detail-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius);
}
.app-detail-info { flex: 1; }
.app-detail-info h1 {
    font-size: 1.8rem;
    margin-bottom: 8px;
}
.app-detail-info .app-author {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 16px;
}
.app-detail-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
}
.btn-primary {
    background: var(--accent);
    color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary {
    background: #fff;
    color: var(--text);
    border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--bg); }
.btn-success {
    background: #22c55e;
    color: #fff;
}
.btn-success:hover { background: #16a34a; }
.btn-block { width: 100%; }

/* 标签 */
.tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 16px;
    font-size: 0.8rem;
    background: var(--bg);
    color: var(--text-light);
    margin-right: 6px;
}

/* 表单 */
.form-group {
    margin-bottom: 20px;
}
.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 0.9rem;
}
.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 0.95rem;
    outline: none;
    transition: border-color var(--transition);
    font-family: inherit;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--accent);
}
.form-group textarea { min-height: 120px; resize: vertical; }
.form-hint {
    font-size: 0.8rem;
    color: var(--text-light);
    margin-top: 4px;
}

/* 卡片 */
.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
    margin-bottom: 24px;
}
.card-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

/* 表格 */
.table-wrap { overflow-x: auto; }
table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}
th, td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
th {
    font-weight: 600;
    background: var(--bg);
    font-size: 0.85rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
tr:hover td { background: var(--bg); }

/* 状态标签 */
.status {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}
.status.pending { background: #fef3c7; color: #92400e; }
.status.paid { background: #d1fae5; color: #065f46; }
.status.active { background: #dbeafe; color: #1e40af; }
.status.inactive { background: #f3f4f6; color: #4b5563; }

/* 认证页面 */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    padding: 24px;
}
.auth-card {
    background: #fff;
    border-radius: var(--radius);
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    padding: 40px;
    width: 100%;
    max-width: 420px;
}
.auth-card h1 {
    font-size: 1.6rem;
    margin-bottom: 4px;
    text-align: center;
}
.auth-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 24px;
}
.auth-error {
    background: #fef2f2;
    color: #dc2626;
    padding: 12px;
    border-radius: 8px;
    font-size: 0.85rem;
    margin-bottom: 16px;
}
.auth-form .form-group { margin-bottom: 16px; }
.auth-form button { width: 100%; margin-top: 8px; }
.auth-footer {
    text-align: center;
    margin-top: 20px;
    font-size: 0.85rem;
    color: var(--text-light);
}
.auth-footer a { color: var(--accent); text-decoration: none; }
.auth-footer a:hover { text-decoration: underline; }

/* 订单/支付 */
.order-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 32px;
    text-align: center;
    max-width: 480px;
    margin: 40px auto;
    box-shadow: var(--shadow);
}
.order-card h2 { margin-bottom: 16px; }
.order-price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
    margin: 16px 0;
}
.qr-placeholder {
    width: 200px;
    height: 200px;
    background: var(--bg);
    border-radius: 8px;
    margin: 20px auto;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 0.85rem;
    border: 2px dashed var(--border);
}

/* 提示 */
.alert {
    padding: 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.9rem;
}
.alert-success { background: #d1fae5; color: #065f46; }
.alert-error { background: #fef2f2; color: #dc2626; }
.alert-info { background: #dbeafe; color: #1e40af; }

/* 页脚 */
.site-footer {
    background: var(--primary);
    color: rgba(255,255,255,0.7);
    padding: 24px;
    text-align: center;
    font-size: 0.85rem;
    margin-top: auto;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 80px 24px;
    color: var(--text-light);
}
.empty-state p { font-size: 1rem; }

/* 分页 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 32px 0;
}
.pagination a,
.pagination span {
    padding: 8px 14px;
    border-radius: 6px;
    text-decoration: none;
    font-size: 0.9rem;
}
.pagination a {
    background: #fff;
    border: 1px solid var(--border);
    color: var(--text);
}
.pagination a:hover { background: var(--bg); }
.pagination span {
    background: var(--primary);
    color: #fff;
}

/* 响应式 - 平板横屏 */
@media (max-width: 1024px) {
    .navbar-inner { padding: 0 20px; }
    .apps-grid { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
    .app-detail-header { gap: 24px; }
}

/* 响应式 - 平板竖屏/手机横屏 */
@media (max-width: 768px) {
    .navbar-inner { padding: 0 16px; }
    .navbar-brand { font-size: 1.1rem; }
    .navbar-nav { gap: 12px; }
    .navbar-nav a { font-size: 0.8rem; }
    .navbar-nav .btn-small { padding: 4px 12px; font-size: 0.75rem; }
    .container { padding: 0 16px; }
    .apps-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; padding: 16px 0 32px; }
    .app-cover { height: 140px; }
    .app-detail-header { flex-direction: column; align-items: center; text-align: center; gap: 20px; }
    .app-detail-icon { width: 100px; height: 100px; font-size: 2.5rem; }
    .app-detail-info h1 { font-size: 1.5rem; }
    .filter-bar { padding: 16px 0; }
    .filter-bar a { padding: 6px 14px; font-size: 0.8rem; }
    .filter-bar input { max-width: 200px; padding: 6px 12px; font-size: 0.8rem; }
    .page-header { padding: 32px 0; }
    .page-header h1 { font-size: 1.6rem; }
    .card { padding: 16px; }
    th, td { padding: 10px 12px; font-size: 0.85rem; }
    .btn { padding: 10px 20px; font-size: 0.9rem; }
    .auth-card { padding: 32px 24px; margin: 16px; }
    .order-card { padding: 24px 16px; margin: 20px auto; }
    .qr-placeholder { width: 160px; height: 160px; }
    .pagination { gap: 4px; }
    .pagination a, .pagination span { padding: 6px 10px; font-size: 0.85rem; }
}

/* 响应式 - 手机竖屏 */
@media (max-width: 480px) {
    .navbar-inner { padding: 0 10px; height: 50px; }
    .navbar-brand { font-size: 1rem; }
    .navbar-nav { gap: 8px; }
    .navbar-nav a { font-size: 0.75rem; }
    .navbar-nav .btn-small { padding: 4px 10px; font-size: 0.7rem; }
    .apps-grid { grid-template-columns: 1fr; gap: 14px; }
    .app-cover { height: 160px; }
    .app-body { padding: 14px; }
    .app-title { font-size: 1rem; }
    .app-desc { font-size: 0.8rem; }
    .page-header { padding: 24px 0; }
    .page-header h1 { font-size: 1.3rem; }
    .page-header p { font-size: 0.9rem; }
    .app-detail-icon { width: 80px; height: 80px; font-size: 2rem; }
    .app-detail-info h1 { font-size: 1.3rem; }
    .btn { padding: 10px 16px; font-size: 0.85rem; }
    .btn-block { width: 100%; }
    .auth-card { padding: 24px 16px; }
    .auth-card h1 { font-size: 1.3rem; }
    .form-group input,
    .form-group textarea,
    .form-group select { font-size: 16px; }
    .order-card { padding: 20px 12px; }
    .order-price { font-size: 1.5rem; }
    .qr-placeholder { width: 140px; height: 140px; }
    th, td { padding: 8px 10px; font-size: 0.8rem; }
    .filter-bar { padding: 12px 0; }
    .filter-bar a { padding: 5px 10px; font-size: 0.75rem; }
    .filter-bar input { max-width: 160px; padding: 5px 10px; font-size: 0.75rem; }
    .empty-state { padding: 48px 16px; }
}

/* 响应式 - 超小屏 */
@media (max-width: 360px) {
    .container { padding: 0 12px; }
    .navbar-brand { font-size: 0.9rem; }
    .navbar-nav { gap: 6px; }
    .navbar-nav a { font-size: 0.7rem; }
    .navbar-nav .btn-small { padding: 3px 8px; font-size: 0.65rem; }
    .app-cover { height: 130px; }
    .page-header h1 { font-size: 1.15rem; }
    .auth-card { padding: 20px 12px; }
    .btn { padding: 8px 14px; font-size: 0.8rem; }
    .filter-bar a { padding: 4px 8px; font-size: 0.7rem; }
    .filter-bar input { max-width: 120px; padding: 4px 8px; font-size: 0.7rem; }
}

/* 触摸优化 */
@media (hover: none) and (pointer: coarse) {
    .app-card:hover { transform: none; box-shadow: var(--shadow); }
    .app-card:active { transform: scale(0.98); }
    .btn { min-height: 44px; }
    .filter-bar a { min-height: 36px; display: inline-flex; align-items: center; }
    .navbar-nav a { min-height: 36px; display: inline-flex; align-items: center; }
    .pagination a, .pagination span { min-height: 36px; display: inline-flex; align-items: center; }
}

/* 触摸优化 */
@media (hover: none) and (pointer: coarse) {
    .app-card:hover { transform: none; box-shadow: var(--shadow); }
    .app-card:active { transform: scale(0.98); }
    .btn { min-height: 44px; }
    .filter-bar a { min-height: 36px; display: inline-flex; align-items: center; }
    .navbar-nav a { min-height: 36px; display: inline-flex; align-items: center; }
    .pagination a, .pagination span { min-height: 36px; display: inline-flex; align-items: center; }
}eight: 36px; display: inline-flex; align-items: center; }
}