/* ===================================================================
 * Let'sCode 页面级样式
 * 补充 google-ui.css 之外的具体页面布局样式
 * 依赖：google-ui.css 的 CSS 变量与基础组件
 * =================================================================== */

/* ===================================================================
 * 顶部导航栏（全站通用）
 * =================================================================== */
.site-header {
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.site-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 calc(var(--spacing) * 4);
}

.site-logo {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 2);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    text-decoration: none;
}

.site-logo:hover {
    color: var(--color-primary);
}

.site-nav {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 4);
}

.site-nav-actions {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 3);
}

/* 主题切换按钮 */
.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border: 1px solid var(--color-border);
    border-radius: 50%;
    background-color: var(--color-bg);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: background-color var(--transition), color var(--transition);
}

.theme-toggle:hover {
    background-color: var(--color-bg-fill);
    color: var(--color-text);
}

/* ===================================================================
 * Hero 区域（首页英雄区）
 * =================================================================== */
.hero-section {
    padding: calc(var(--spacing) * 25) 0 calc(var(--spacing) * 20);
    text-align: center;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: calc(var(--spacing) * 5);
    color: var(--color-text);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    max-width: 640px;
    margin: 0 auto calc(var(--spacing) * 8);
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: calc(var(--spacing) * 3);
    justify-content: center;
    flex-wrap: wrap;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: calc(var(--spacing) * 2);
    padding: calc(var(--spacing) * 2) calc(var(--spacing) * 4);
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: calc(var(--spacing) * 6);
}

/* ===================================================================
 * 功能特性网格
 * =================================================================== */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: calc(var(--spacing) * 5);
    padding: calc(var(--spacing) * 12) 0;
}

.feature-card {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: calc(var(--spacing) * 6);
    transition: border-color var(--transition);
}

.feature-card:hover {
    border-color: var(--color-text-secondary);
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius);
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    margin-bottom: calc(var(--spacing) * 4);
}

.feature-title {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: calc(var(--spacing) * 2);
    color: var(--color-text);
}

.feature-desc {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* 区块标题（通用） */
.section {
    padding: calc(var(--spacing) * 12) 0;
}

.section-header {
    text-align: center;
    margin-bottom: calc(var(--spacing) * 10);
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: calc(var(--spacing) * 3);
    color: var(--color-text);
}

.section-subtitle {
    font-size: 1.0625rem;
    color: var(--color-text-secondary);
    max-width: 560px;
    margin: 0 auto;
}

/* ===================================================================
 * 认证容器（登录/注册，居中卡片）
 * =================================================================== */
.auth-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: calc(var(--spacing) * 6);
    background-color: var(--color-bg-muted);
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: calc(var(--spacing) * 10);
}

.auth-header {
    text-align: center;
    margin-bottom: calc(var(--spacing) * 8);
}

.auth-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: calc(var(--spacing) * 4);
}

.auth-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: calc(var(--spacing) * 2);
}

.auth-subtitle {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
}

.auth-footer {
    text-align: center;
    margin-top: calc(var(--spacing) * 6);
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
}

/* 验证码输入组（带发送按钮） */
.code-group {
    display: flex;
    gap: calc(var(--spacing) * 3);
}

.code-group .form-input {
    flex: 1;
}

.code-group .btn {
    white-space: nowrap;
    flex-shrink: 0;
}

/* ===================================================================
 * 仪表盘布局（侧边栏 + 主内容区）
 * =================================================================== */
.dashboard-layout {
    display: flex;
    min-height: 100vh;
    background-color: var(--color-bg-muted);
}

.dashboard-sidebar {
    width: 260px;
    flex-shrink: 0;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
}

.dashboard-main {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.dashboard-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    padding: 0 calc(var(--spacing) * 6);
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 50;
}

.dashboard-header-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-text);
}

.dashboard-content {
    padding: calc(var(--spacing) * 6);
    flex: 1;
}

/* 侧边栏移动端切换按钮 */
.dashboard-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-text);
    cursor: pointer;
    padding: var(--spacing);
}

/* ===================================================================
 * 统计卡片（仪表盘数据展示）
 * =================================================================== */
.stat-card {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: calc(var(--spacing) * 5);
    transition: border-color var(--transition);
}

.stat-card:hover {
    border-color: var(--color-text-secondary);
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: calc(var(--spacing) * 3);
}

.stat-value {
    font-family: var(--font-mono);
    font-size: 1.75rem;
    font-weight: 500;
    color: var(--color-text);
    line-height: 1.2;
    margin-bottom: calc(var(--spacing) * 2);
}

.stat-delta {
    display: inline-flex;
    align-items: center;
    gap: calc(var(--spacing));
    font-size: 0.8125rem;
    font-weight: 500;
}

.stat-delta.up {
    color: var(--color-success);
}

.stat-delta.down {
    color: var(--color-danger);
}

.stat-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius);
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    margin-bottom: calc(var(--spacing) * 3);
}

/* 统计网格 */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: calc(var(--spacing) * 5);
    margin-bottom: calc(var(--spacing) * 6);
}

/* ===================================================================
 * 套餐卡片
 * =================================================================== */
.package-card {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: calc(var(--spacing) * 6);
    display: flex;
    flex-direction: column;
    transition: border-color var(--transition);
    position: relative;
}

.package-card:hover {
    border-color: var(--color-text-secondary);
}

/* 推荐套餐高亮 */
.package-card.featured {
    border-color: var(--color-primary);
    border-width: 2px;
}

.package-card.featured::before {
    content: '推荐';
    position: absolute;
    top: calc(var(--spacing) * -2);
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--color-primary);
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 500;
    padding: calc(var(--spacing) * 1) calc(var(--spacing) * 3);
    border-radius: 999px;
    white-space: nowrap;
}

.package-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: calc(var(--spacing) * 2);
}

.package-desc {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    margin-bottom: calc(var(--spacing) * 5);
    line-height: 1.6;
    min-height: 3em;
}

.package-price {
    display: flex;
    align-items: baseline;
    gap: calc(var(--spacing) * 2);
    margin-bottom: calc(var(--spacing) * 5);
}

.package-price-value {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
}

.package-price-unit {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
}

.package-features {
    list-style: none;
    margin-bottom: calc(var(--spacing) * 6);
    flex: 1;
}

.package-features li {
    display: flex;
    align-items: flex-start;
    gap: calc(var(--spacing) * 2);
    font-size: 0.9375rem;
    color: var(--color-text);
    padding: calc(var(--spacing) * 2) 0;
    border-bottom: 1px solid var(--color-border);
}

.package-features li:last-child {
    border-bottom: none;
}

.package-features li::before {
    content: '✓';
    color: var(--color-success);
    font-weight: 700;
    flex-shrink: 0;
}

.package-action {
    margin-top: auto;
}

.package-action .btn {
    width: 100%;
}

/* 套餐网格 */
.package-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: calc(var(--spacing) * 5);
    align-items: stretch;
}

/* ===================================================================
 * 表格工具栏（搜索 + 操作按钮）
 * =================================================================== */
.table-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: calc(var(--spacing) * 4);
    padding: calc(var(--spacing) * 4) calc(var(--spacing) * 5);
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-bottom: none;
    border-radius: var(--radius) var(--radius) 0 0;
    flex-wrap: wrap;
}

.table-toolbar-search {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 2);
    flex: 1;
    min-width: 240px;
    max-width: 400px;
    position: relative;
}

.table-toolbar-search .form-input {
    padding-left: calc(var(--spacing) * 8);
}

.table-toolbar-search-icon {
    position: absolute;
    left: calc(var(--spacing) * 3);
    color: var(--color-text-secondary);
    pointer-events: none;
    display: flex;
    align-items: center;
}

.table-toolbar-actions {
    display: flex;
    align-items: center;
    gap: calc(var(--spacing) * 3);
}

/* 工具栏下接表格（去除表格顶部圆角） */
.table-toolbar + .table-wrap {
    border-radius: 0 0 var(--radius) var(--radius);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

/* 分页 */
.pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: calc(var(--spacing) * 4) calc(var(--spacing) * 5);
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-top: none;
    border-radius: 0 0 var(--radius) var(--radius);
}

.pagination-info {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.pagination-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing);
}

.pagination-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2.25rem;
    height: 2.25rem;
    padding: 0 calc(var(--spacing) * 3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background-color: var(--color-bg);
    color: var(--color-text);
    font-size: 0.875rem;
    cursor: pointer;
    transition: background-color var(--transition), border-color var(--transition);
}

.pagination-btn:hover:not(:disabled) {
    background-color: var(--color-bg-fill);
    border-color: var(--color-text-secondary);
}

.pagination-btn.active {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: #ffffff;
}

.pagination-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* ===================================================================
 * 安装向导步骤指示器
 * =================================================================== */
.step-indicator {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: calc(var(--spacing) * 8);
    position: relative;
}

/* 连接线 */
.step-indicator::before {
    content: '';
    position: absolute;
    top: 1rem;
    left: 1rem;
    right: 1rem;
    height: 2px;
    background-color: var(--color-border);
    z-index: 0;
}

.step-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: calc(var(--spacing) * 2);
    position: relative;
    z-index: 1;
    flex: 1;
}

.step-circle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    background-color: var(--color-bg);
    border: 2px solid var(--color-border);
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    font-weight: 700;
    transition: all var(--transition);
}

.step-item.active .step-circle {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background-color: var(--color-bg);
}

.step-item.completed .step-circle {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: #ffffff;
}

.step-label {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    text-align: center;
    white-space: nowrap;
}

.step-item.active .step-label {
    color: var(--color-primary);
    font-weight: 500;
}

.step-item.completed .step-label {
    color: var(--color-text);
}

/* 步骤内容区 */
.step-content {
    display: none;
}

.step-content.active {
    display: block;
}

.step-actions {
    display: flex;
    justify-content: space-between;
    margin-top: calc(var(--spacing) * 8);
    padding-top: calc(var(--spacing) * 6);
    border-top: 1px solid var(--color-border);
}

/* ===================================================================
 * 空状态
 * =================================================================== */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: calc(var(--spacing) * 12) calc(var(--spacing) * 6);
    text-align: center;
}

.empty-state-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    background-color: var(--color-bg-fill);
    color: var(--color-text-secondary);
    margin-bottom: calc(var(--spacing) * 5);
}

.empty-state-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: calc(var(--spacing) * 2);
}

.empty-state-desc {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    max-width: 360px;
    margin-bottom: calc(var(--spacing) * 6);
}

.empty-state-action {
    margin-top: var(--spacing);
}

/* ===================================================================
 * 加载动画（spinner）
 * =================================================================== */
.loading-spinner {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    height: 1.5rem;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.loading-spinner-lg {
    width: 2.5rem;
    height: 2.5rem;
    border-width: 3px;
}

.loading-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(255, 255, 255, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

[data-theme="dark"] .loading-overlay {
    background-color: rgba(22, 22, 22, 0.7);
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 按钮内加载状态 */
.btn-loading .btn-text,
.btn-loading-text {
    display: none;
}

.btn.is-loading {
    pointer-events: none;
    opacity: 0.75;
}

.btn.is-loading::after {
    content: '';
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 2px solid currentColor;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    margin-left: calc(var(--spacing) * 2);
}

/* ===================================================================
 * Toast 消息提示
 * =================================================================== */
.toast-container {
    position: fixed;
    top: calc(var(--spacing) * 6);
    right: calc(var(--spacing) * 6);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing) * 3);
    max-width: 360px;
}

.toast {
    display: flex;
    align-items: flex-start;
    gap: calc(var(--spacing) * 3);
    padding: calc(var(--spacing) * 4) calc(var(--spacing) * 5);
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-text-secondary);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    animation: toast-in 0.2s ease;
    min-width: 280px;
}

.toast.toast-success {
    border-left-color: var(--color-success);
}

.toast.toast-error {
    border-left-color: var(--color-danger);
}

.toast.toast-warning {
    border-left-color: var(--color-warning);
}

.toast.toast-info {
    border-left-color: var(--color-primary);
}

.toast-icon {
    flex-shrink: 0;
    margin-top: 2px;
}

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

.toast-body {
    flex: 1;
    font-size: 0.9375rem;
    color: var(--color-text);
    line-height: 1.5;
}

.toast-close {
    background: none;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    padding: 0;
    font-size: 1.25rem;
    line-height: 1;
    flex-shrink: 0;
}

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

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateX(1rem);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.toast.toast-out {
    animation: toast-out 0.2s ease forwards;
}

@keyframes toast-out {
    to {
        opacity: 0;
        transform: translateX(1rem);
    }
}

/* ===================================================================
 * Modal 模态框
 * =================================================================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9000;
    padding: calc(var(--spacing) * 6);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    transform: translateY(-1rem);
    transition: transform var(--transition);
    overflow: hidden;
}

.modal-overlay.active .modal {
    transform: translateY(0);
}

.modal-lg {
    max-width: 720px;
}

.modal-sm {
    max-width: 360px;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: calc(var(--spacing) * 5) calc(var(--spacing) * 6);
    border-bottom: 1px solid var(--color-border);
}

.modal-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-text);
}

.modal-close {
    background: none;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    padding: var(--spacing);
    font-size: 1.5rem;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: background-color var(--transition), color var(--transition);
}

.modal-close:hover {
    background-color: var(--color-bg-fill);
    color: var(--color-text);
}

.modal-body {
    padding: calc(var(--spacing) * 6);
    overflow-y: auto;
    flex: 1;
    color: var(--color-text);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: calc(var(--spacing) * 3);
    padding: calc(var(--spacing) * 5) calc(var(--spacing) * 6);
    border-top: 1px solid var(--color-border);
}

/* ===================================================================
 * 页脚
 * =================================================================== */
.site-footer {
    background-color: var(--color-bg);
    border-top: 1px solid var(--color-border);
    padding: calc(var(--spacing) * 10) 0;
    color: var(--color-text-secondary);
    font-size: 0.9375rem;
}

.site-footer-inner {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: calc(var(--spacing) * 6);
}

.site-footer-brand {
    max-width: 320px;
}

.site-footer-brand-name {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: calc(var(--spacing) * 3);
}

.site-footer-links {
    display: flex;
    gap: calc(var(--spacing) * 8);
    flex-wrap: wrap;
}

.site-footer-col h4 {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: calc(var(--spacing) * 3);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.site-footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: calc(var(--spacing) * 3);
}

.site-footer-col a {
    color: var(--color-text-secondary);
}

.site-footer-col a:hover {
    color: var(--color-primary);
}

.site-footer-bottom {
    text-align: center;
    padding-top: calc(var(--spacing) * 6);
    margin-top: calc(var(--spacing) * 6);
    border-top: 1px solid var(--color-border);
    font-size: 0.8125rem;
}

/* ===================================================================
 * 响应式适配
 * =================================================================== */

/* 平板（≤ 768px） */
@media (max-width: 768px) {
    /* Hero 缩小 */
    .hero-section {
        padding: calc(var(--spacing) * 15) 0 calc(var(--spacing) * 12);
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.0625rem;
    }

    /* 功能网格 2 列 */
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: calc(var(--spacing) * 4);
    }

    /* 统计卡片 2 列 */
    .stat-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: calc(var(--spacing) * 4);
    }

    /* 套餐 1 列 */
    .package-grid {
        grid-template-columns: 1fr;
    }

    /* 仪表盘：侧边栏隐藏，可切换 */
    .dashboard-sidebar {
        position: fixed;
        left: 0;
        top: 0;
        z-index: 200;
        transform: translateX(-100%);
        transition: transform var(--transition);
        width: 240px;
    }

    .dashboard-sidebar.active {
        transform: translateX(0);
    }

    .dashboard-toggle {
        display: inline-flex;
    }

    .dashboard-content {
        padding: calc(var(--spacing) * 4);
    }

    .dashboard-header {
        padding: 0 calc(var(--spacing) * 4);
    }

    /* 表格工具栏堆叠 */
    .table-toolbar {
        flex-direction: column;
        align-items: stretch;
        gap: calc(var(--spacing) * 3);
    }

    .table-toolbar-search {
        max-width: none;
    }

    /* 步骤指示器：隐藏标签，仅显示圆圈 */
    .step-label {
        display: none;
    }

    /* 认证卡片内边距缩小 */
    .auth-card {
        padding: calc(var(--spacing) * 6);
    }

    /* Toast 全宽 */
    .toast-container {
        left: calc(var(--spacing) * 3);
        right: calc(var(--spacing) * 3);
        max-width: none;
    }
}

/* 手机（≤ 480px） */
@media (max-width: 480px) {
    /* Hero 进一步缩小 */
    .hero-title {
        font-size: 1.75rem;
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
    }

    .hero-actions .btn {
        width: 100%;
    }

    /* 功能网格单列 */
    .feature-grid {
        grid-template-columns: 1fr;
    }

    /* 统计卡片单列 */
    .stat-grid {
        grid-template-columns: 1fr;
    }

    /* 认证卡片填满 */
    .auth-container {
        padding: var(--spacing);
    }

    .auth-card {
        padding: calc(var(--spacing) * 5);
        max-width: none;
    }

    /* 模态框填满 */
    .modal-overlay {
        padding: var(--spacing);
    }

    .modal {
        max-width: none;
    }

    /* 验证码组堆叠 */
    .code-group {
        flex-direction: column;
    }

    .code-group .btn {
        width: 100%;
    }

    /* 站点导航隐藏 */
    .site-nav {
        display: none;
    }
}