/* 响应式设计 */

/* 大屏幕 (桌面端) */
@media (min-width: 1200px) {
    .container {
        max-width: 1140px;
    }
}

/* 导航栏响应式设计 */
@media (max-width: 1024px) {
    .navbar-menu {
        gap: 15px;
    }
    
    .nav-link {
        padding: 8px 12px;
        font-size: 0.95rem;
    }
}

@media (max-width: 768px) {
    /* 调整页面顶部内边距 */
    body {
        padding-top: 70px;
    }
    
    /* 导航栏折叠时的内边距调整 */
    .navbar-collapsed ~ * {
        padding-top: 50px !important;
    }
    
    /* 优化移动端导航链接 */
    .nav-link {
        font-size: 1rem;
        padding: 15px 20px;
        border-radius: 0;
        border-bottom: 1px solid var(--light-gray);
    }
    
    .nav-link:last-child {
        border-bottom: none;
    }
    
    /* 优化移动端导航菜单位置 */
    .navbar-menu {
        top: 70px;
    }
    
    .navbar-collapsed .navbar-menu {
        top: 50px;
    }
    
    /* 增强触摸反馈 */
    .nav-link:active {
        background-color: rgba(26, 115, 232, 0.2);
    }
    
    /* 优化移动端品牌名称 */
    .navbar-brand {
        font-size: 1.3rem;
    }
    
    .navbar-collapsed .navbar-brand {
        font-size: 1.1rem;
    }

    /* 翻页卡片响应式 */
    .countdown-flip-card {
        width: 70px;
        height: 100px;
        font-size: 50px;
    }
    #days, #holidayDays {
        width: 90px;
    }
    .half span {
        height: 100px;
        line-height: 100px;
    }
    .countdown-separator {
        font-size: 2rem;
        margin: 0 5px;
    }
}

@media (max-width: 480px) {
    /* 移动端导航栏优化 */
    .navbar .container {
        padding: 0 15px;
    }

    /* 优化移动端品牌名称 */
    .navbar-brand {
        font-size: 1.2rem;
    }

    .navbar-collapsed .navbar-brand {
        font-size: 1rem;
    }

    /* 增加汉堡按钮大小，优化触摸体验 */
    .mobile-nav-toggle {
        width: 45px;
        height: 45px;
        padding: 12px;
    }

    /* 优化汉堡图标大小 */
    .hamburger-icon {
        width: 22px;
    }

    /* 优化移动端导航链接 */
    .nav-link {
        padding: 18px 20px;
        font-size: 1.1rem;
    }

    /* 调整导航菜单位置 */
    .navbar-menu {
        top: 70px;
        padding: 15px 0;
    }

    .navbar-collapsed .navbar-menu {
        top: 50px;
    }

    /* 增强移动端点击区域 */
    .nav-link {
        min-height: 50px;
        display: flex;
        align-items: center;
    }

    /* 移动端悬浮按钮优化 */
    .floating-nav-button {
        width: 56px;
        height: 56px;
        min-width: 56px;
        min-height: 56px;
        right: 15px;
        bottom: 15px;
    }

    /* 移动端悬浮菜单优化 */
    .floating-nav-menu {
        right: 80px;
        bottom: 15px;
        min-width: 180px;
        padding: 12px;
    }

    .floating-menu-header {
        font-size: 13px;
        margin-bottom: 10px;
        padding-bottom: 6px;
    }

    .floating-menu-link {
        padding: 12px 10px;
        font-size: 13px;
        min-height: 48px;
    }
}

/* 中等屏幕 (平板横屏) */
@media (max-width: 1024px) {
    .welcome-title {
        font-size: 3rem;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .countdown-separator {
        font-size: 2.5rem;
    }
    
    .countdown-display {
        gap: 15px;
    }
    
    .countdown-flip-card {
        width: 110px;
        height: 150px;
        font-size: 75px;
    }
    #days, #holidayDays {
        width: 150px;
    }
    .half span {
        height: 150px;
        line-height: 150px;
    }
    
    .profile-section .profile-card {
        padding: 1.5rem;
    }
    
    .quote-text {
        font-size: 1.3rem;
    }
}

/* 小屏幕 (平板竖屏) */
@media (max-width: 768px) {
    .welcome-title {
        font-size: 2.5rem;
    }
    
    .welcome-subtitle {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .countdown-separator {
        font-size: 2rem;
        margin: 0 5px;
    }
    
    .countdown-display {
        gap: 10px;
    }
    
    .countdown-label {
        font-size: 0.9rem;
        letter-spacing: 1px;
    }
    
    .holiday-tabs {
        gap: 8px;
    }
    
    .holiday-tab {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
    
    .profile-section .profile-card {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
    }
    
    .profile-avatar img {
        width: 150px;
        height: 150px;
    }
    
    .profile-name {
        font-size: 1.8rem;
    }
    
    .profile-bio {
        font-size: 1rem;
    }
    
    .quote-text {
        font-size: 1.2rem;
    }
    
    .quote-author {
        font-size: 1rem;
    }
    
    .refresh-quote {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}

/* 超小屏幕 (手机) */
@media (max-width: 480px) {
    .hero-section {
        height: 80vh;
    }
    
    .welcome-title {
        font-size: 2rem;
    }
    
    .welcome-subtitle {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
        margin-bottom: 1.5rem;
    }
    
    .countdown-display {
        gap: 8px;
    }
    
    .countdown-separator {
        font-size: 1.5rem;
        margin: 0 3px;
    }
    
    .countdown-label {
        font-size: 0.75rem;
        letter-spacing: 0.5px;
        margin-top: 6px;
    }
    
    .holiday-tabs {
        gap: 6px;
        margin-bottom: 1.5rem;
    }
    
    .holiday-tab {
        padding: 6px 12px;
        font-size: 0.8rem;
        border-radius: 20px;
    }
    
    .holiday-name {
        font-size: 1.2rem;
    }
    
    .profile-section .profile-card {
        padding: 1rem;
        gap: 1rem;
    }
    
    .profile-avatar img {
        width: 120px;
        height: 120px;
    }
    
    .profile-name {
        font-size: 1.5rem;
        margin-bottom: 0.5rem;
    }
    
    .profile-bio {
        font-size: 0.9rem;
        margin-bottom: 1rem;
    }
    
    .profile-details {
        align-items: center;
    }
    
    .detail-item {
        font-size: 0.9rem;
    }
    
    .quote-container {
        padding: 1.5rem;
        margin: 1.5rem auto;
    }
    
    .quote-text {
        font-size: 1.1rem;
    }
    
    .refresh-quote {
        padding: 8px 16px;
        font-size: 0.8rem;
    }
    
    /* 调整各区块的内边距 */
    .countdown-section,
    .holiday-section,
    .profile-section,
    .motivation-section {
        padding: 60px 0;
    }
}

/* 横竖屏切换 */
@media (orientation: landscape) and (max-width: 768px) {
    .hero-section {
        height: 100vh;
    }
    
    .countdown-section,
    .holiday-section,
    .profile-section,
    .motivation-section {
        padding: 40px 0;
    }
    
    .countdown-display {
        gap: 10px;
    }
    
    .countdown-separator {
        font-size: 1.8rem;
    }
}

/* 高分辨率屏幕适配 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .hero-section::before {
        background-size: 100% auto;
    }
}

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

::-webkit-scrollbar-track {
    background: var(--light-gray);
}

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

::-webkit-scrollbar-thumb:hover {
    background: var(--dark-gray);
}

/* 打印样式 */
@media print {
    .hero-section {
        height: auto;
        padding: 2rem 0;
    }
    
    .countdown-section,
    .holiday-section,
    .profile-section,
    .motivation-section {
        padding: 2rem 0;
    }
    
    .holiday-tabs,
    .refresh-quote {
        display: none;
    }
    
    .countdown-item {
        box-shadow: none;
        border: 1px solid var(--border-color);
    }
    
    .profile-section .profile-card {
        box-shadow: none;
        border: 1px solid var(--border-color);
    }
    
    .quote-container {
        box-shadow: none;
        border: 1px solid var(--border-color);
        background-color: var(--white);
        color: var(--text-primary);
    }
}