/* ========================================
   游戏数据管理系统 - 响应式样式
   黑白色调设计
   ======================================== */

/* CSS变量 */
:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #141414;
    --bg-tertiary: #1a1a1a;
    --bg-hover: #222222;
    --bg-card: #1e1e1e;
    
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #666666;
    
    --border-color: #2a2a2a;
    --border-light: #333333;
    
    --accent-primary: #ffffff;
    --accent-secondary: #e0e0e0;
    
    --success: #4caf50;
    --warning: #ff9800;
    --danger: #f44336;
    --info: #2196f3;
    
    --sidebar-width: 260px;
    --top-bar-height: 60px;
    --mobile-header-height: 50px;
    --mobile-nav-height: 60px;
    
    --transition: all 0.3s ease;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html, body {
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-size: 14px;
    line-height: 1.5;
}

/* 隐藏元素 */
.hidden {
    display: none !important;
}

/* 设备显示控制 */
.pc-only {
    display: block;
}

.mobile-only {
    display: none;
}

/* ========================================
   登录页面
   ======================================== */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    padding: 20px;
}

.login-box {
    width: 100%;
    max-width: 420px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 40px;
    box-shadow: var(--shadow);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header i {
    font-size: 64px;
    color: var(--accent-primary);
    margin-bottom: 15px;
}

.login-header h1 {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: 4px;
    margin-bottom: 5px;
}

.login-header p {
    color: var(--text-muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.login-form .form-group {
    margin-bottom: 20px;
}

.login-form input {
    width: 100%;
    padding: 15px 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 16px;
    transition: var(--transition);
}

.login-form input:focus {
    outline: none;
    border-color: var(--accent-primary);
    background: var(--bg-tertiary);
}

.login-form input::placeholder {
    color: var(--text-muted);
}

.form-error {
    color: var(--danger);
    font-size: 13px;
    margin-bottom: 15px;
    min-height: 20px;
    text-align: center;
}

.login-footer {
    text-align: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.login-footer p {
    color: var(--text-muted);
    font-size: 12px;
}

/* ========================================
   按钮样式
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--text-primary);
    color: var(--bg-primary);
}

.btn-primary:hover:not(:disabled) {
    background: var(--accent-secondary);
}

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

.btn-secondary:hover:not(:disabled) {
    background: var(--border-light);
}

.btn-danger {
    background: transparent;
    color: var(--danger);
    border: 1px solid var(--danger);
}

.btn-danger:hover:not(:disabled) {
    background: var(--danger);
    color: var(--text-primary);
}

.btn-warning {
    background: transparent;
    color: var(--warning);
    border: 1px solid var(--warning);
}

.btn-warning:hover:not(:disabled) {
    background: var(--warning);
    color: var(--bg-primary);
}

.btn-info {
    background: transparent;
    color: var(--info);
    border: 1px solid var(--info);
}

.btn-info:hover:not(:disabled) {
    background: var(--info);
    color: var(--text-primary);
}

.btn-block {
    width: 100%;
    padding: 14px;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

.btn-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-icon:hover {
    background: var(--bg-hover);
}

.text-danger {
    color: var(--danger);
}

/* ========================================
   侧边栏 (PC端)
   ======================================== */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 100;
}

.sidebar-header {
    height: var(--top-bar-height);
    display: flex;
    align-items: center;
    padding: 0 20px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header i {
    font-size: 24px;
    margin-right: 10px;
}

.sidebar-header span {
    font-size: 18px;
    font-weight: 600;
}

.sidebar-nav {
    flex: 1;
    padding: 15px 10px;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 12px 15px;
    margin-bottom: 5px;
    border-radius: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.nav-item i {
    width: 24px;
    margin-right: 10px;
    font-size: 16px;
}

.nav-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-item.active {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-left: 3px solid var(--accent-primary);
}

.sidebar-footer {
    padding: 15px;
    border-top: 1px solid var(--border-color);
}

.user-info {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    padding: 10px;
    background: var(--bg-tertiary);
    border-radius: 8px;
}

.user-info i {
    font-size: 20px;
    margin-right: 8px;
    color: var(--text-secondary);
}

.role-badge {
    margin-left: auto;
    padding: 2px 8px;
    background: var(--bg-hover);
    border-radius: 4px;
    font-size: 11px;
    text-transform: uppercase;
}

.role-badge.admin {
    background: var(--warning);
    color: var(--bg-primary);
}

/* ========================================
   移动端头部
   ======================================== */
.mobile-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--mobile-header-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 15px;
    z-index: 100;
}

.mobile-header .header-left {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.mobile-header .header-right {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    flex: 1;
    min-width: 0;
}

.mobile-header .header-right span {
    color: var(--text-secondary);
    font-size: 13px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100px;
}

.mobile-header .logo {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 2px;
}

/* ========================================
   移动端底部导航
   ======================================== */
.mobile-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--mobile-nav-height);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-around;
    align-items: center;
    z-index: 100;
}

.mobile-nav .nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 11px;
    transition: var(--transition);
    padding: 5px 15px;
    margin-bottom: 0;
}

.mobile-nav .nav-item i {
    width: auto;
    margin-right: 0;
    font-size: 20px;
}

.mobile-nav .nav-item.active {
    color: var(--text-primary);
    border-left: none;
    background: transparent;
}

/* ========================================
   主内容区
   ======================================== */
.main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    background: var(--bg-primary);
}

.top-bar {
    height: var(--top-bar-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 30px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 50;
}

.top-bar h2 {
    font-size: 18px;
    font-weight: 500;
}

.system-time {
    color: var(--text-muted);
    font-size: 13px;
    font-family: 'Courier New', monospace;
}

.content-wrapper {
    padding: 30px;
}

.content-page {
    animation: fadeIn 0.3s ease;
}

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

/* ========================================
   统计卡片
   ======================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    align-items: center;
    transition: var(--transition);
}

.stat-card:hover {
    border-color: var(--border-light);
    transform: translateY(-2px);
}

.stat-icon {
    width: 50px;
    height: 50px;
    background: var(--bg-hover);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
}

.stat-icon i {
    font-size: 24px;
    color: var(--accent-primary);
}

.stat-info h3 {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 5px;
}

.stat-info p {
    color: var(--text-muted);
    font-size: 13px;
}

/* ========================================
   区块卡片
   ======================================== */
.dashboard-sections {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.section-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 20px;
}

.section-card.full-width {
    grid-column: 1 / -1;
}

.section-card h3 {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.section-card h3 i {
    margin-right: 8px;
    color: var(--text-secondary);
}

/* ========================================
   列表样式
   ======================================== */
.game-list, .trend-list, .log-list {
    max-height: 300px;
    overflow-y: auto;
}

.game-item, .trend-item, .log-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.game-item:last-child, .trend-item:last-child, .log-item:last-child {
    border-bottom: none;
}

.game-name, .log-user {
    display: flex;
    align-items: center;
    gap: 8px;
}

.game-count, .log-time {
    color: var(--text-muted);
    font-size: 12px;
}

.log-type {
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    text-transform: uppercase;
}

.log-type.copy { background: rgba(33, 150, 243, 0.2); color: var(--info); }
.log-type.download { background: rgba(76, 175, 80, 0.2); color: var(--success); }
.log-type.delete { background: rgba(244, 67, 54, 0.2); color: var(--danger); }
.log-type.batch_download { background: rgba(255, 152, 0, 0.2); color: var(--warning); }

/* ========================================
   页面操作栏
   ======================================== */
.page-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.filter-group {
    display: flex;
    gap: 10px;
    align-items: center;
}

.filter-group select,
.filter-group input {
    padding: 10px 15px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
}

.filter-group select:focus,
.filter-group input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

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

/* ========================================
   移动端数据操作
   ======================================== */
.data-actions {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.data-actions select,
.data-actions input {
    flex: 1;
    padding: 12px 15px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 14px;
}

.batch-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 15px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    margin-bottom: 15px;
}

.batch-btns {
    display: flex;
    gap: 10px;
}

.data-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.data-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 15px;
    position: relative;
}

.data-item.selected {
    border-color: var(--text-primary);
    background: var(--bg-hover);
}

.data-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.data-game {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
}

.data-game i {
    color: var(--text-secondary);
}

.data-checkbox {
    width: 20px;
    height: 20px;
    accent-color: var(--text-primary);
}

.data-preview {
    font-size: 12px;
    color: var(--text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-bottom: 10px;
}

.data-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--text-muted);
}

.data-actions-row {
    display: flex;
    gap: 8px;
    margin-top: 10px;
}

.data-actions-row .btn {
    flex: 1;
    padding: 10px;
    font-size: 13px;
}

.load-more {
    margin-top: 20px;
}

/* ========================================
   数据表格
   ======================================== */
.data-table-wrapper {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.data-table th,
.data-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background: var(--bg-secondary);
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
}

.data-table tbody tr:hover {
    background: var(--bg-hover);
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.data-table .data-preview {
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-muted);
}

.status-badge {
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
}

.status-badge.active {
    background: rgba(76, 175, 80, 0.2);
    color: var(--success);
}

.status-badge.deleted {
    background: rgba(244, 67, 54, 0.2);
    color: var(--danger);
}

.status-badge.frozen {
    background: rgba(33, 150, 243, 0.2);
    color: var(--info);
}

.table-actions {
    display: flex;
    gap: 5px;
}

.table-actions .btn {
    padding: 5px 10px;
    font-size: 12px;
}

/* ========================================
   分页
   ======================================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 5px;
    margin-top: 20px;
}

.page-btn {
    padding: 8px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
}

.page-btn:hover {
    background: var(--bg-hover);
}

.page-btn.active {
    background: var(--text-primary);
    color: var(--bg-primary);
}

.page-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.page-info {
    color: var(--text-muted);
    font-size: 13px;
}

/* ========================================
   标签页
   ======================================== */
.tab-nav {
    display: flex;
    gap: 5px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.tab-btn {
    padding: 10px 20px;
    background: transparent;
    border: none;
    border-radius: 6px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    font-size: 14px;
}

.tab-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.tab-btn.active {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.tab-pane {
    animation: fadeIn 0.3s ease;
}

/* ========================================
   用户列表 (移动端)
   ======================================== */
.user-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.user-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 15px;
}

.user-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.user-name {
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

.user-stats-row {
    display: flex;
    gap: 20px;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 10px;
}

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

.user-actions .btn {
    flex: 1;
    padding: 10px;
    font-size: 13px;
}

/* ========================================
   模态框
   ======================================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow: hidden;
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 16px;
    font-weight: 500;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 18px;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 20px;
    max-height: 60vh;
    overflow-y: auto;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 15px 20px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-secondary);
}

.data-detail-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 15px;
    font-family: 'Courier New', monospace;
    font-size: 12px;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 400px;
    overflow-y: auto;
}

/* ========================================
   我的页面
   ======================================== */
.profile-container {
    max-width: 600px;
    margin: 0 auto;
}

.profile-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.profile-avatar {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-hover);
    border-radius: 50%;
}

.profile-avatar i {
    font-size: 48px;
    color: var(--text-secondary);
}

.profile-info h3 {
    font-size: 20px;
    margin-bottom: 8px;
}

.profile-sections {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.profile-form .form-group {
    margin-bottom: 15px;
}

.profile-form label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 13px;
}

.profile-form input {
    width: 100%;
    padding: 12px 15px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
}

.profile-form input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.profile-info-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.info-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.info-item:last-child {
    border-bottom: none;
}

.info-label {
    color: var(--text-secondary);
    font-size: 13px;
}

.info-value {
    font-weight: 500;
}

/* ========================================
   Toast提示
   ======================================== */
#toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    padding: 15px 20px;
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    animation: toastIn 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 250px;
    box-shadow: var(--shadow);
}

@keyframes toastIn {
    from { opacity: 0; transform: translateX(100%); }
    to { opacity: 1; transform: translateX(0); }
}

.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
.toast.warning { background: var(--warning); color: var(--bg-primary); }
.toast.info { background: var(--info); }

.toast i {
    font-size: 18px;
}

/* ========================================
   统计表格
   ======================================== */
.stats-table-wrapper {
    overflow-x: auto;
}

.stats-table {
    width: 100%;
    border-collapse: collapse;
}

.stats-table th,
.stats-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.stats-table th {
    background: var(--bg-secondary);
    font-weight: 500;
    color: var(--text-secondary);
}

/* ========================================
   响应式设计 - 移动端
   ======================================== */
@media (max-width: 1024px) {
    .pc-only {
        display: none !important;
    }
    
    .mobile-only {
        display: block;
    }
    
    .mobile-nav {
        display: flex;
    }
    
    .main-content {
        margin-left: 0;
        padding-top: var(--mobile-header-height);
        padding-bottom: var(--mobile-nav-height);
    }
    
    .content-wrapper {
        padding: 15px;
    }
    
    .dashboard-sections {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stat-card {
        padding: 15px;
    }
    
    .stat-icon {
        width: 40px;
        height: 40px;
    }
    
    .stat-icon i {
        font-size: 18px;
    }
    
    .stat-info h3 {
        font-size: 20px;
    }
    
    .page-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-group,
    .batch-actions {
        width: 100%;
    }
    
    .batch-actions {
        justify-content: flex-start;
    }
    
    .login-box {
        padding: 30px 20px;
    }
    
    .profile-header {
        flex-direction: column;
        text-align: center;
    }
    
    #toast-container {
        top: calc(var(--mobile-header-height) + 10px);
        left: 15px;
        right: 15px;
    }
    
    .toast {
        min-width: auto;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .batch-actions {
        flex-wrap: wrap;
    }
    
    .batch-actions .btn {
        flex: 1;
        min-width: 120px;
    }
}

/* ========================================
   滚动条样式
   ======================================== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-light);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ========================================
   选中状态
   ======================================== */
.selected-row {
    background: rgba(255, 255, 255, 0.05) !important;
}

/* 复选框样式 */
input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--text-primary);
    cursor: pointer;
}

/* ========================================
   续费功能样式
   ======================================== */
.expiry-info {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 20px;
}

.expiry-display {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.expiry-label {
    color: var(--text-secondary);
    font-size: 14px;
}

.expiry-value {
    font-size: 18px;
    font-weight: 600;
}

.expiry-status {
    font-size: 13px;
    padding: 5px 12px;
    border-radius: 20px;
    display: inline-block;
}

.expiry-status.active {
    background: rgba(76, 175, 80, 0.2);
    color: var(--success);
}

.expiry-status.expired {
    background: rgba(244, 67, 54, 0.2);
    color: var(--danger);
}

.expiry-status.warning {
    background: rgba(255, 152, 0, 0.2);
    color: var(--warning);
}

.recharge-section {
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.recharge-section h4 {
    font-size: 14px;
    margin-bottom: 15px;
    color: var(--text-secondary);
}

.recharge-section h4 i {
    margin-right: 8px;
}

.recharge-form .form-group {
    margin-bottom: 15px;
}

.recharge-form input {
    width: 100%;
    padding: 12px 15px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.recharge-form input:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.recharge-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.recharge-option {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 15px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.recharge-option:hover {
    border-color: var(--text-primary);
    background: var(--bg-hover);
}

.recharge-option .months {
    display: block;
    font-size: 14px;
    margin-bottom: 5px;
}

.recharge-option .price {
    display: block;
    font-size: 20px;
    font-weight: 600;
    color: var(--success);
}

/* 卡密管理 */
.card-management {
    margin-top: 15px;
}

.card-gen-form .form-row {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.card-gen-form select,
.card-gen-form input {
    padding: 10px 15px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
}

.card-gen-form select {
    flex: 1;
}

.card-gen-form input {
    width: 80px;
}

.generated-cards {
    margin-bottom: 20px;
}

.card-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 15px;
    margin-bottom: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-item .card-key {
    font-family: 'Courier New', monospace;
    font-size: 14px;
    letter-spacing: 1px;
}

.card-item .card-info {
    font-size: 12px;
    color: var(--text-muted);
}

.cards-list {
    max-height: 300px;
    overflow-y: auto;
}