/**
 * 虾搞本虾 - Cream Tech 科技奶油风格
 * 温暖柔和的科技感配色方案
 * v0.3.0 - 移动端友好重构
 */

/* ========== CSS 变量 ========== */
:root {
    /* 奶油色系 */
    --cream-50: #FFFDF7;
    --cream-100: #FFF9E8;
    --cream-200: #FFF3D1;
    --cream-300: #FFEAB3;
    --cream-400: #FFE094;
    
    /* 主色调 - 奶油橙 */
    --primary-50: #FFF7ED;
    --primary-100: #FFEDD5;
    --primary-200: #FED7AA;
    --primary-300: #FDBA74;
    --primary-400: #FB923C;
    --primary-500: #F97316;
    --primary-600: #EA580C;
    
    /* 辅助色 - 科技蓝 */
    --accent-50: #EFF6FF;
    --accent-100: #DBEAFE;
    --accent-200: #BFDBFE;
    --accent-300: #93C5FD;
    --accent-400: #60A5FA;
    --accent-500: #3B82F6;
    
    /* 中性色 */
    --gray-50: #FAFAF9;
    --gray-100: #F5F5F4;
    --gray-200: #E7E5E4;
    --gray-300: #D6D3D1;
    --gray-400: #A8A29E;
    --gray-500: #78716C;
    --gray-600: #57534E;
    --gray-700: #44403C;
    --gray-800: #292524;
    --gray-900: #1C1917;
    
    /* 状态色 */
    --success: #22C55E;
    --warning: #EAB308;
    --error: #EF4444;
    --info: #3B82F6;
    
    /* ========== StyleManager 兼容变量 ========== */
    --cream: var(--cream-100);
    --cream-dark: var(--cream-200);
    --accent: var(--primary-500);
    --accent-primary: var(--primary-500);
    --accent-light: var(--primary-400);
    --accent-dark: var(--primary-600);
    --text-primary: var(--gray-800);
    --text-secondary: var(--gray-600);
    --text-dark: var(--gray-800);
    --text-light: var(--gray-600);
    --text-muted: var(--gray-400);
    --surface-white: #FFFFFF;
    --card-bg: #FFFFFF;
    --tech-gradient: linear-gradient(135deg, #F97316 0%, #3B82F6 100%);
    --header-bg: linear-gradient(135deg, #FFFFFF 0%, #FFF9E8 100%);
    --body-bg: linear-gradient(135deg, #FFF9E8 0%, #FFFDF7 100%);
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow: var(--shadow-md);
    --shadow-accent: 0 8px 30px rgba(249, 115, 22, 0.15);
    
    /* 圆角 */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* 过渡 */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* 移动端触摸区域 */
    --touch-target: 44px;
}

/* ========== 基础样式 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, var(--cream-100) 0%, var(--cream-50) 100%);
    color: var(--gray-800);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========== 统一顶栏布局 ========== */
.app-header {
    background: linear-gradient(135deg, var(--surface-white) 0%, var(--cream-100) 100%);
    padding: 0;
    border-bottom: 1px solid rgba(255, 107, 53, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    transition: background 0.3s ease;
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    gap: 1rem;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

.home-link {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 0.75rem;
    border-radius: 20px;
    transition: all 0.15s ease;
    font-size: 0.875rem;
    white-space: nowrap;
}

.home-link:hover {
    color: var(--accent-primary);
    background: var(--cream-200);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    font-size: 1.75rem;
    animation: wiggle 2s ease-in-out infinite;
}

@keyframes wiggle {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(-5deg); }
    75% { transform: rotate(5deg); }
}

.logo-text h1 {
    font-size: 1.125rem;
    font-weight: 700;
    margin: 0;
    color: var(--text-primary);
    white-space: nowrap;
}

.logo-text span {
    font-size: 0.625rem;
    color: var(--text-secondary);
    display: block;
    white-space: nowrap;
}

/* 导航区域 */
.header-nav {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 0.75rem;
    border-radius: 20px;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.875rem;
    white-space: nowrap;
    min-height: var(--touch-target);
}

.nav-link:hover {
    color: var(--accent-primary);
    background: var(--cream-200);
}

.nav-link.active {
    color: white;
    background: var(--tech-gradient);
    box-shadow: var(--shadow-accent);
}

/* 风格选择器 */
.style-selector {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    border-radius: 20px;
    background: var(--tech-gradient);
    color: white;
    border: none;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-accent);
    min-height: var(--touch-target);
}

.style-selector:hover {
    transform: scale(1.05);
    opacity: 1;
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    width: var(--touch-target);
    height: var(--touch-target);
    border-radius: 12px;
    background: var(--tech-gradient);
    color: white;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
}

/* ========== 布局 ========== */
.app-container {
    display: block;
    min-height: 100vh;
}

.main-content {
    flex: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem;
}

/* ========== 卡片 ========== */
.card {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    padding: 1.25rem;
    margin-bottom: 1rem;
    transition: all var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--gray-100);
    flex-wrap: wrap;
    gap: 0.5rem;
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-title .icon {
    color: var(--primary-500);
}

/* ========== 统计卡片 - 美化版 ========== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.stat-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: 1.25rem;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--tech-gradient);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-card .stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.stat-card.primary .stat-icon {
    background: linear-gradient(135deg, var(--primary-100), var(--primary-200));
    color: var(--primary-600);
}

.stat-card.accent .stat-icon {
    background: linear-gradient(135deg, var(--accent-100), var(--accent-200));
    color: var(--accent-500);
}

.stat-card.success .stat-icon {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1), rgba(34, 197, 94, 0.2));
    color: var(--success);
}

.stat-card.warning .stat-icon {
    background: linear-gradient(135deg, rgba(234, 179, 8, 0.1), rgba(234, 179, 8, 0.2));
    color: var(--warning);
}

.stat-card .stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    background: var(--tech-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.25rem;
}

.stat-card .stat-label {
    font-size: 0.8125rem;
    color: var(--gray-500);
}

/* ========== 环形进度图 ========== */
.progress-ring-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    padding: 1rem;
}

.progress-ring {
    position: relative;
    width: 120px;
    height: 120px;
}

.progress-ring svg {
    transform: rotate(-90deg);
}

.progress-ring-bg {
    fill: none;
    stroke: var(--gray-100);
    stroke-width: 8;
}

.progress-ring-fill {
    fill: none;
    stroke: url(#progressGradient);
    stroke-width: 8;
    stroke-linecap: round;
    stroke-dasharray: 314;
    stroke-dashoffset: 314;
    transition: stroke-dashoffset 1s ease;
}

.progress-ring-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.progress-ring-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-800);
}

.progress-ring-label {
    font-size: 0.75rem;
    color: var(--gray-500);
}

/* ========== 数据条 ========== */
.data-bar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 0;
}

.data-bar-label {
    font-size: 0.875rem;
    color: var(--gray-600);
    min-width: 80px;
}

.data-bar-track {
    flex: 1;
    height: 8px;
    background: var(--gray-100);
    border-radius: 4px;
    overflow: hidden;
}

.data-bar-fill {
    height: 100%;
    background: var(--tech-gradient);
    border-radius: 4px;
    transition: width 0.8s ease;
}

.data-bar-value {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-800);
    min-width: 50px;
    text-align: right;
}

/* ========== 按钮 - 移动端友好 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    min-height: var(--touch-target);
    touch-action: manipulation;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-200);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--gray-300);
    color: var(--gray-600);
}

.btn-outline:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
}

/* ========== 徽章 ========== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.625rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 9999px;
}

.badge-success {
    background: rgba(34, 197, 94, 0.1);
    color: var(--success);
}

.badge-warning {
    background: rgba(234, 179, 8, 0.1);
    color: var(--warning);
}

.badge-error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error);
}

.badge-info {
    background: var(--accent-100);
    color: var(--accent-500);
}

.badge-primary {
    background: var(--primary-100);
    color: var(--primary-600);
}

/* ========== 列表 - 移动端友好 ========== */
.list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    min-height: var(--touch-target);
    text-decoration: none;
    color: inherit;
}

.list-item:hover {
    background: var(--cream-100);
}

.list-item-content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.list-item-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-100);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.list-item-title {
    font-weight: 500;
    color: var(--gray-800);
}

.list-item-subtitle {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* ========== 日历热力图 ========== */
.calendar-container {
    padding: 0.5rem;
}

.calendar-month {
    margin-bottom: 1rem;
}

.calendar-month-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-600);
    margin-bottom: 0.5rem;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 3px;
}

.calendar-day {
    width: 100%;
    aspect-ratio: 1;
    border-radius: var(--radius-sm);
    background: var(--gray-100);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

.calendar-day:hover {
    transform: scale(1.2);
    z-index: 1;
}

.calendar-day.level-0 { background: var(--gray-100); }
.calendar-day.level-1 { background: var(--primary-200); }
.calendar-day.level-2 { background: var(--primary-300); }
.calendar-day.level-3 { background: var(--primary-400); }
.calendar-day.level-4 { background: var(--primary-500); }

.calendar-day.today {
    border: 2px solid var(--accent-500);
}

/* ========== 时间线 ========== */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0.5rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gray-200);
}

.timeline-item {
    position: relative;
    padding-bottom: 1.5rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -1.5rem;
    top: 0.25rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary-500);
    border: 2px solid white;
    box-shadow: var(--shadow-sm);
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-date {
    font-size: 0.75rem;
    color: var(--gray-400);
    margin-bottom: 0.25rem;
}

.timeline-title {
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 0.25rem;
}

.timeline-content {
    font-size: 0.875rem;
    color: var(--gray-600);
}

/* ========== 表格 ========== */
.table-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

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

th, td {
    padding: 0.875rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--gray-100);
}

th {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
    background: var(--gray-50);
}

tr:hover {
    background: var(--cream-50);
}

/* ========== 空状态 ========== */
.empty-state {
    text-align: center;
    padding: 2rem;
    color: var(--gray-400);
}

.empty-state .icon {
    font-size: 3rem;
    margin-bottom: 0.75rem;
    opacity: 0.5;
}

.empty-state .title {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.empty-state .description {
    font-size: 0.875rem;
}

/* ========== 加载状态 ========== */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--gray-200);
    border-top-color: var(--primary-500);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ========== 页面标题 ========== */
.page-header {
    margin-bottom: 1.5rem;
}

.page-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 0.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.page-subtitle {
    color: var(--gray-500);
    font-size: 0.875rem;
}

/* ========== 网格布局 ========== */
.grid {
    display: grid;
    gap: 1rem;
}

.grid-cols-2 {
    grid-template-columns: 1fr;
}

.grid-cols-3 {
    grid-template-columns: 1fr;
}

/* ========== Markdown 内容 ========== */
.markdown-content {
    line-height: 1.8;
    font-size: 0.9375rem;
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3 {
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--gray-800);
}

.markdown-content h1 { font-size: 1.375rem; }
.markdown-content h2 { font-size: 1.125rem; }
.markdown-content h3 { font-size: 1rem; }

.markdown-content p {
    margin-bottom: 1rem;
}

.markdown-content ul,
.markdown-content ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.markdown-content li {
    margin-bottom: 0.5rem;
}

.markdown-content code {
    background: var(--gray-100);
    padding: 0.125rem 0.375rem;
    border-radius: var(--radius-sm);
    font-size: 0.875em;
}

.markdown-content pre {
    background: var(--gray-800);
    color: var(--gray-100);
    padding: 1rem;
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin-bottom: 1rem;
}

.markdown-content pre code {
    background: transparent;
    padding: 0;
}

/* ========== 快捷入口 ========== */
.quick-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.quick-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.25rem;
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--gray-600);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-fast);
    min-height: 100px;
}

.quick-link:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    color: var(--primary-600);
}

.quick-link .icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.quick-link .label {
    font-weight: 500;
    font-size: 0.875rem;
}

/* ========== 标签页 ========== */
.tabs {
    display: flex;
    gap: 0.25rem;
    border-bottom: 1px solid var(--gray-200);
    margin-bottom: 1rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.tab {
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-500);
    background: none;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    white-space: nowrap;
    min-height: var(--touch-target);
}

.tab:hover {
    color: var(--gray-700);
}

.tab.active {
    color: var(--primary-600);
}

.tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary-500);
}

/* ========== 欢迎横幅 ========== */
.welcome-banner {
    background: linear-gradient(135deg, var(--primary-500), var(--accent-500));
    color: white;
    border-radius: var(--radius-xl);
    padding: 1.5rem;
    margin-bottom: 1rem;
    position: relative;
    overflow: hidden;
}

.welcome-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
}

.welcome-banner h1 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
    position: relative;
}

.welcome-banner p {
    opacity: 0.9;
    position: relative;
    font-size: 0.875rem;
}

.welcome-time {
    position: absolute;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    text-align: right;
    font-size: 2rem;
    font-weight: 300;
}

/* ========== 分区标题 ========== */
.section-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ========== 动画效果 ========== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

.animate-fade-in {
    animation: fadeIn 0.5s ease forwards;
}

.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}

/* ========== 响应式设计 - 移动端优先 ========== */

/* 平板及以上 (768px+) */
@media (min-width: 768px) {
    .main-content {
        padding: 1.5rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .grid-cols-2 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .grid-cols-3 {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .quick-links {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .welcome-banner {
        padding: 2rem;
    }
    
    .welcome-banner h1 {
        font-size: 1.5rem;
    }
    
    .welcome-time {
        font-size: 2.5rem;
        right: 2rem;
    }
    
    .page-title {
        font-size: 1.75rem;
    }
    
    .card {
        padding: 1.5rem;
    }
    
    .stat-card .stat-value {
        font-size: 2rem;
    }
}

/* 桌面端 (1024px+) */
@media (min-width: 1024px) {
    .header-content {
        padding: 0.75rem 2rem;
    }
    
    .main-content {
        padding: 2rem;
    }
    
    .logo-text h1 {
        font-size: 1.25rem;
    }
    
    .logo-text span {
        font-size: 0.75rem;
    }
    
    .nav-link {
        padding: 0.5rem 1rem;
    }
    
    .stat-card {
        padding: 1.5rem;
    }
    
    .stat-card .stat-value {
        font-size: 2.25rem;
    }
}

/* 大屏幕 (1280px+) */
@media (min-width: 1280px) {
    .main-content {
        max-width: 1400px;
    }
}

/* 移动端导航处理 */
@media (max-width: 900px) {
    .header-content {
        flex-wrap: wrap;
    }
    
    .header-nav {
        order: 3;
        width: 100%;
        justify-content: center;
        padding-top: 0.5rem;
        border-top: 1px solid var(--gray-100);
        margin-top: 0.5rem;
        flex-wrap: wrap;
    }
    
    .nav-link {
        padding: 0.5rem 0.625rem;
        font-size: 0.8125rem;
    }
    
    .nav-link span:not(:first-child) {
        display: none;
    }
}

@media (max-width: 600px) {
    .logo-text span {
        display: none;
    }
    
    .home-link span:not(:first-child) {
        display: none;
    }
    
    .style-selector {
        padding: 0.5rem;
    }
    
    .style-selector span:not(:first-child) {
        display: none;
    }
}

/* ========== 响应式隐藏 ========== */
.hide-mobile {
    display: none !important;
}

.hide-desktop {
    display: block !important;
}

@media (min-width: 768px) {
    .hide-mobile {
        display: block !important;
    }
    
    .hide-desktop {
        display: none !important;
    }
}

/* ========== 触摸优化 ========== */
@media (hover: none) and (pointer: coarse) {
    .btn,
    .nav-link,
    .quick-link,
    .list-item,
    .stat-card,
    .tab {
        -webkit-tap-highlight-color: transparent;
    }
    
    .btn:active,
    .nav-link:active,
    .quick-link:active,
    .list-item:active {
        transform: scale(0.98);
        opacity: 0.9;
    }
}

/* ========== 打印样式 ========== */
@media print {
    .app-header,
    .mobile-menu-btn,
    .style-selector {
        display: none !important;
    }
    
    .main-content {
        padding: 0;
        max-width: none;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid var(--gray-200);
        break-inside: avoid;
    }
}

/* ========== 辅助功能 ========== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* 焦点样式 */
:focus-visible {
    outline: 2px solid var(--primary-500);
    outline-offset: 2px;
}

/* 选择样式 */
::selection {
    background: var(--primary-200);
    color: var(--gray-900);
}