/* ================================================
   Apple风格移动端优化样式系统
   ================================================ */

/* 基础变量优化 */
:root {
    /* Apple风格的间距系统 */
    --mobile-spacing-xs: 8px;
    --mobile-spacing-sm: 12px;
    --mobile-spacing-md: 16px;
    --mobile-spacing-lg: 24px;
    --mobile-spacing-xl: 32px;
    --mobile-spacing-2xl: 48px;
    
    /* 移动端专用字体大小 */
    --mobile-text-xs: 12px;
    --mobile-text-sm: 14px;
    --mobile-text-base: 16px;
    --mobile-text-lg: 18px;
    --mobile-text-xl: 20px;
    --mobile-text-2xl: 24px;
    --mobile-text-3xl: 28px;
    --mobile-text-4xl: 32px;
    
    /* 移动端专用圆角 */
    --mobile-radius-sm: 8px;
    --mobile-radius-md: 12px;
    --mobile-radius-lg: 16px;
    --mobile-radius-xl: 20px;
    
    /* 移动端触摸目标最小尺寸 */
    --touch-target-min: 44px;
    
    /* Apple风格的阴影 */
    --mobile-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --mobile-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --mobile-shadow-lg: 0 8px 25px rgba(0, 0, 0, 0.12);
    --mobile-shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.15);
}

/* ================================================
   移动端导航菜单优化
   ================================================ */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--mobile-spacing-sm);
    width: var(--touch-target-min);
    height: var(--touch-target-min);
    justify-content: center;
    align-items: center;
    gap: 4px;
    transition: var(--transition-fast);
    border-radius: var(--mobile-radius-sm);
}

.mobile-menu-toggle:hover {
    background: var(--color-primary-lighter);
}

.mobile-menu-toggle span {
    width: 20px;
    height: 2px;
    background: var(--color-text);
    border-radius: 1px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

.mobile-menu {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--color-border);
    box-shadow: var(--mobile-shadow-xl);
    z-index: 999;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    max-height: calc(100vh - 72px);
    overflow-y: auto;
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.mobile-menu-list {
    list-style: none;
    padding: var(--mobile-spacing-lg) 0;
    margin: 0;
}

.mobile-menu-list li {
    margin: 0;
    border-bottom: 1px solid var(--color-border-light);
}

.mobile-menu-list li:last-child {
    border-bottom: none;
}

.mobile-menu-list a {
    display: flex;
    align-items: center;
    padding: var(--mobile-spacing-lg) var(--mobile-spacing-xl);
    color: var(--color-text);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    font-size: var(--mobile-text-base);
    min-height: var(--touch-target-min);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    background: linear-gradient(90deg, transparent 0%, var(--color-primary-lighter) 0%);
    background-size: 0% 100%;
    background-repeat: no-repeat;
}

.mobile-menu-list a:hover,
.mobile-menu-list a.active {
    background-size: 100% 100%;
    color: var(--color-primary);
    transform: translateX(8px);
}

.mobile-menu-list a::after {
    content: '›';
    margin-left: auto;
    font-size: var(--mobile-text-lg);
    color: var(--color-text-secondary);
    transition: var(--transition-fast);
}

.mobile-menu-list a:hover::after,
.mobile-menu-list a.active::after {
    color: var(--color-primary);
    transform: translateX(4px);
}

.mobile-cta {
    padding: var(--mobile-spacing-xl);
    border-top: 1px solid var(--color-border);
    background: var(--color-background-secondary);
}

.mobile-cta .btn-header {
    width: 100%;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--mobile-spacing-sm);
    min-height: var(--touch-target-min);
    border-radius: var(--mobile-radius-lg);
    font-weight: var(--font-weight-semibold);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-cta .btn-header:hover {
    transform: translateY(-2px);
    box-shadow: var(--mobile-shadow-lg);
}

/* ================================================
   无障碍访问优化
   ================================================ */
.skip-link {
    position: absolute;
    top: -48px;
    left: var(--mobile-spacing-md);
    background: var(--color-primary);
    color: var(--color-text-light);
    padding: var(--mobile-spacing-sm) var(--mobile-spacing-md);
    text-decoration: none;
    border-radius: var(--mobile-radius-md);
    font-weight: var(--font-weight-semibold);
    font-size: var(--mobile-text-sm);
    z-index: 10000;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--mobile-shadow-lg);
}

.skip-link:focus {
    top: var(--mobile-spacing-md);
    outline: 3px solid var(--color-primary-light);
    outline-offset: 2px;
}

/* 增强的焦点指示器 */
button:focus,
a:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px var(--color-primary-lighter);
}

/* ================================================
   移动端核心布局优化
   ================================================ */
@media (max-width: 768px) {
    /* 显示移动端菜单 */
    .mobile-menu-toggle {
        display: flex !important;
    }

    .nav-links {
        display: none !important;
    }

    .nav-actions .btn-header {
        display: none !important;
    }

    /* ================================================
       社交证明和促销横幅优化 - 重点修复
       ================================================ */
    .social-proof-section {
        padding: var(--mobile-spacing-2xl) var(--mobile-spacing-md) !important;
    }

    .social-proof-container {
        max-width: 100%;
        margin: 0;
    }

    .urgency-banner {
        background: rgba(255, 255, 255, 0.98);
        border-radius: var(--mobile-radius-lg);
        padding: var(--mobile-spacing-lg) !important;
        margin-bottom: var(--mobile-spacing-xl);
        box-shadow: var(--mobile-shadow-lg);
        border: 2px solid #FF6B6B;
        animation: mobileGentlePulse 3s ease-in-out infinite;
    }

    @keyframes mobileGentlePulse {
        0%, 100% { transform: scale(1); }
        50% { transform: scale(1.005); }
    }

    .urgency-content {
        display: flex !important;
        flex-direction: column !important;
        align-items: stretch !important;
        justify-content: flex-start !important;
        gap: var(--mobile-spacing-lg) !important;
        text-align: center !important;
    }

    .urgency-content > div:first-child {
        display: flex !important;
        flex-direction: column !important;
        align-items: center !important;
        gap: var(--mobile-spacing-md) !important;
        flex: none !important;
    }

    .urgency-banner .urgency-icon,
    .social-proof-section .urgency-icon,
    .urgency-content .urgency-icon {
        display: none !important; /* 在移动端隐藏图标，避免挤压文字 */
    }



    .urgency-text {
        text-align: center !important;
        flex: none !important;
        width: 100% !important;
    }

    .urgency-text h3 {
        font-size: var(--mobile-text-2xl) !important;
        font-weight: var(--font-weight-bold) !important;
        color: #FF6B6B !important;
        margin-bottom: var(--mobile-spacing-sm) !important;
        line-height: 1.3 !important;
        text-align: center !important;
    }

    .urgency-text p {
        font-size: var(--mobile-text-sm) !important;
        color: var(--color-text-secondary) !important;
        line-height: 1.4 !important;
        text-align: center !important;
        margin: 0 !important;
    }

    .urgency-btn {
        flex-shrink: 0 !important;
        width: 100% !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        padding: var(--mobile-spacing-md) var(--mobile-spacing-lg) !important;
        min-height: var(--touch-target-min) !important;
        background: linear-gradient(135deg, #FF6B6B, #FF8E53) !important;
        color: white !important;
        text-decoration: none !important;
        border-radius: var(--mobile-radius-lg) !important;
        font-weight: var(--font-weight-semibold) !important;
        font-size: var(--mobile-text-base) !important;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
        box-shadow: var(--mobile-shadow-md) !important;
        border: none !important;
    }

    .urgency-btn:hover {
        transform: translateY(-1px);
        box-shadow: var(--mobile-shadow-lg);
        background: linear-gradient(135deg, #FF5252, #FF7043) !important;
    }

    /* 信任指标优化 */
    .trust-indicators {
        display: grid !important;
        grid-template-columns: 1fr !important;
        gap: var(--mobile-spacing-md) !important;
        margin-top: var(--mobile-spacing-xl);
    }

    .trust-item {
        display: flex !important;
        align-items: center !important;
        gap: var(--mobile-spacing-md) !important;
        padding: var(--mobile-spacing-lg) !important;
        background: rgba(255, 255, 255, 0.9) !important;
        border-radius: var(--mobile-radius-lg) !important;
        box-shadow: var(--mobile-shadow-sm) !important;
        border: 1px solid rgba(255, 255, 255, 0.2) !important;
        text-align: left !important;
    }

    .trust-item .trust-icon {
        font-size: var(--mobile-text-2xl) !important;
        flex-shrink: 0;
    }

    .trust-item .trust-text h3 {
        font-size: var(--mobile-text-base) !important;
        font-weight: var(--font-weight-semibold) !important;
        color: var(--color-text) !important;
        margin-bottom: 2px !important;
        line-height: 1.3 !important;
    }

    .trust-item .trust-text p {
        font-size: var(--mobile-text-sm) !important;
        color: var(--color-text-secondary) !important;
        margin: 0 !important;
        line-height: 1.3 !important;
    }

    /* ================================================
       Hero区域优化
       ================================================ */
    .hero {
        padding: calc(var(--mobile-spacing-2xl) + 20px) var(--mobile-spacing-md) var(--mobile-spacing-2xl) !important;
        text-align: center;
    }

    .hero h1 {
        font-size: clamp(var(--mobile-text-3xl), 8vw, 40px) !important;
        line-height: 1.2 !important;
        margin-bottom: var(--mobile-spacing-lg) !important;
        font-weight: var(--font-weight-extrabold) !important;
    }

    .hero .subtitle {
        font-size: var(--mobile-text-lg) !important;
        margin-bottom: var(--mobile-spacing-xl) !important;
        line-height: 1.4 !important;
        opacity: 0.9;
    }

    .hero-buttons {
        display: flex !important;
        flex-direction: column !important;
        gap: var(--mobile-spacing-md) !important;
        align-items: center !important;
        margin-top: var(--mobile-spacing-xl) !important;
    }

    /* ================================================
       表单和按钮优化
       ================================================ */
    .form-group {
        margin-bottom: var(--mobile-spacing-xl) !important;
    }

    .form-input,
    .form-select,
    .form-textarea {
        padding: var(--mobile-spacing-md) !important;
        font-size: var(--mobile-text-base) !important;
        min-height: var(--touch-target-min) !important;
        border-radius: var(--mobile-radius-md) !important;
        border: 2px solid var(--color-border);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        background: var(--color-background);
    }

    .form-input:focus,
    .form-select:focus,
    .form-textarea:focus {
        border-color: var(--color-primary);
        box-shadow: 0 0 0 3px var(--color-primary-lighter);
        outline: none;
    }

    .btn-primary,
    .btn-secondary {
        padding: var(--mobile-spacing-md) var(--mobile-spacing-xl) !important;
        min-height: var(--touch-target-min) !important;
        font-size: var(--mobile-text-base) !important;
        font-weight: var(--font-weight-semibold) !important;
        border-radius: var(--mobile-radius-lg) !important;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
        border: none !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        gap: var(--mobile-spacing-sm) !important;
    }

    .btn-primary:hover,
    .btn-secondary:hover {
        transform: translateY(-1px);
        box-shadow: var(--mobile-shadow-lg);
    }

    .btn-primary:active,
    .btn-secondary:active {
        transform: translateY(0);
    }

    /* ================================================
       卡片布局优化
       ================================================ */
    .course-card,
    .story-card,
    .contact-method {
        margin-bottom: var(--mobile-spacing-lg) !important;
        border-radius: var(--mobile-radius-lg) !important;
        box-shadow: var(--mobile-shadow-md) !important;
        overflow: hidden;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    .course-header {
        padding: var(--mobile-spacing-lg) !important;
    }

    .course-body {
        padding: var(--mobile-spacing-lg) !important;
    }

    .course-footer {
        padding: var(--mobile-spacing-lg) !important;
        flex-direction: column !important;
        gap: var(--mobile-spacing-md) !important;
    }

    /* 确保移动端课程卡片中的按钮居中 */
    .course-body .btn-primary {
        margin: 0 auto !important;
        text-align: center !important;
        display: flex !important;
        justify-content: center !important;
        align-items: center !important;
    }

    /* ================================================
       网格布局优化
       ================================================ */
    .courses-grid,
    .features-grid,
    .stories-grid {
        display: grid !important;
        grid-template-columns: 1fr !important;
        gap: var(--mobile-spacing-lg) !important;
    }

    .stats-grid,
    .hero-stats {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: var(--mobile-spacing-md) !important;
    }

    /* ================================================
       统计数据隐藏（移动端）
       ================================================ */
    .stats {
        display: none !important;
    }

    /* ================================================
       轮播和滑动优化 - 完全重新设计移动端轮播
       ================================================ */
    
    /* 重置section级别的padding */
    .recent-success-section {
        padding: var(--mobile-spacing-2xl) 0 !important;
    }

    .recent-success-container {
        padding: 0 !important;
        max-width: 100% !important;
    }

    /* 轮播容器 - 统一管理所有间距 */
    .success-carousel {
        position: relative !important;
        overflow: hidden !important;
        margin: var(--mobile-spacing-xl) 0 !important;
        padding: 0 var(--mobile-spacing-md) !important; /* 统一左右内边距 */
        /* 移动端启用触摸滚动作为备选方案 */
        -webkit-overflow-scrolling: touch;
        scroll-snap-type: x mandatory;
    }

    /* 轮播轨道 - 完全重置 */
    .success-track {
        display: flex !important;
        gap: var(--mobile-spacing-md) !important;
        padding: 0 !important; /* 完全移除内边距 */
        margin: 0 !important;
        transition: transform 0.5s ease !important;
    }

    /* 轮播卡片 - 精确控制尺寸 */
    .success-card {
        /* 确保卡片宽度适合移动端，同时不被切掉 */
        /* 100vw - 容器左右padding(20px*2) - 预留滚动空间(24px) = 100vw - 64px */
        flex: 0 0 calc(100vw - 64px) !important;
        max-width: 320px !important;
        min-width: 280px !important;
        margin: 0 !important; /* 卡片间距由gap控制 */
        scroll-snap-align: start;
        /* 确保内容不溢出 */
        box-sizing: border-box !important;
    }

    /* 移除所有卡片的特殊边距设置 */
    .success-card:first-child,
    .success-card:last-child {
        margin: 0 !important;
    }

    /* 控制按钮 */
    .carousel-controls {
        display: flex !important;
        justify-content: center !important;
        gap: var(--mobile-spacing-md) !important;
        margin: var(--mobile-spacing-lg) auto 0 !important;
        padding: 0 var(--mobile-spacing-md) !important;
    }

    .carousel-btn {
        width: 40px !important;
        height: 40px !important;
        font-size: 14px !important;
        min-height: var(--touch-target-min) !important;
    }

    /* 禁用自动滚动动画 */
    .success-track.auto-scroll {
        animation: none !important;
    }

    /* 极小屏幕优化 (小于320px) */
    @media (max-width: 320px) {
        .success-card {
            flex: 0 0 calc(100vw - 32px) !important; /* 减少padding以适应极小屏幕 */
            min-width: 240px !important;
        }

        .success-carousel {
            padding: 0 var(--mobile-spacing-sm) !important;
        }

        .carousel-controls {
            padding: 0 var(--mobile-spacing-sm) !important;
        }
    }

    /* ================================================
       FAQ优化
       ================================================ */
    .faq-question {
        padding: var(--mobile-spacing-lg) !important;
        font-size: var(--mobile-text-base) !important;
        min-height: var(--touch-target-min);
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .faq-answer {
        padding: 0 !important; /* 确保折叠时没有padding */
        line-height: 1.5;
    }

    .faq-item.active .faq-answer {
        padding: var(--mobile-spacing-md) var(--mobile-spacing-lg) var(--mobile-spacing-lg) !important;
    }

    /* ================================================
       图片优化
       ================================================ */
    img {
        max-width: 100% !important;
        height: auto !important;
        border-radius: var(--mobile-radius-md);
    }

    /* ================================================
       页脚优化
       ================================================ */
    .footer {
        padding: var(--mobile-spacing-2xl) var(--mobile-spacing-md) !important;
    }

    .footer-links {
        flex-direction: column !important;
        gap: var(--mobile-spacing-md) !important;
        text-align: center !important;
        margin-bottom: var(--mobile-spacing-xl);
    }

    .footer-links a {
        padding: var(--mobile-spacing-sm) 0;
        min-height: var(--touch-target-min);
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* ================================================
       粘性元素优化
       ================================================ */
    .sticky-contact {
        bottom: calc(80px + var(--mobile-spacing-md)) !important;
        right: var(--mobile-spacing-md) !important;
        padding: var(--mobile-spacing-sm) var(--mobile-spacing-md) !important;
        font-size: var(--mobile-text-sm) !important;
        border-radius: var(--mobile-radius-lg) !important;
        box-shadow: var(--mobile-shadow-lg) !important;
        z-index: 100;
    }

    .mobile-contact-bar {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        padding: var(--mobile-spacing-md) !important;
        border-top: 1px solid var(--color-border);
        z-index: 101;
        box-shadow: var(--mobile-shadow-xl);
    }

    .mobile-contact-bar .contact-buttons {
        display: flex !important;
        gap: var(--mobile-spacing-sm) !important;
        justify-content: space-between;
    }

    .mobile-contact-bar .contact-buttons a {
        flex: 1;
        padding: var(--mobile-spacing-sm) var(--mobile-spacing-md) !important;
        font-size: var(--mobile-text-sm) !important;
        text-align: center !important;
        min-height: var(--touch-target-min);
        display: flex;
        align-items: center;
        justify-content: center;
        gap: var(--mobile-spacing-xs);
        border-radius: var(--mobile-radius-md);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .mobile-contact-bar .contact-buttons a:hover {
        transform: translateY(-1px);
        box-shadow: var(--mobile-shadow-md);
    }

    /* ================================================
       区域间距优化
       ================================================ */
    .features,
    .courses,
    .testimonials,
    .recent-success-section,
    .social-proof-section,
    .cta-section,
    .stories-section,
    .stats-section {
        padding: var(--mobile-spacing-2xl) var(--mobile-spacing-md) !important;
    }

    .section-header {
        margin-bottom: var(--mobile-spacing-2xl) !important;
        text-align: center;
    }

    .section-title {
        font-size: clamp(var(--mobile-text-2xl), 6vw, var(--mobile-text-4xl)) !important;
        line-height: 1.2 !important;
        margin-bottom: var(--mobile-spacing-md) !important;
    }

    .section-description {
        font-size: var(--mobile-text-base) !important;
        line-height: 1.5 !important;
        opacity: 0.9;
    }

    /* ================================================
       CTA区域优化
       ================================================ */
    .cta-buttons {
        display: flex !important;
        flex-direction: column !important;
        align-items: center !important;
        gap: var(--mobile-spacing-md) !important;
        margin-top: var(--mobile-spacing-xl);
    }

    .cta-buttons .btn-primary,
    .cta-buttons .btn-secondary {
        width: 100% !important;
        max-width: 320px !important;
        margin: 0 auto !important;
        display: flex !important;
        justify-content: center !important;
        align-items: center !important;
        text-align: center !important;
    }

    /* ================================================
       社交通知优化
       ================================================ */
    .social-notification {
        left: var(--mobile-spacing-md) !important;
        right: var(--mobile-spacing-md) !important;
        max-width: none !important;
        bottom: calc(80px + var(--mobile-spacing-md)) !important;
        border-radius: var(--mobile-radius-lg) !important;
        box-shadow: var(--mobile-shadow-lg) !important;
        padding: var(--mobile-spacing-md) !important;
    }

    .notification-content {
        gap: var(--mobile-spacing-sm) !important;
        align-items: flex-start;
    }

    .notification-text {
        font-size: var(--mobile-text-sm) !important;
        line-height: 1.4 !important;
    }
}

/* ================================================
   平板设备优化 (769px - 1024px)
   ================================================ */
@media (max-width: 1024px) and (min-width: 769px) {
    .courses-grid,
    .stories-grid,
    .features-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: var(--mobile-spacing-xl) !important;
    }

    .hero h1 {
        font-size: clamp(40px, 6vw, 52px) !important;
    }

    .section-title {
        font-size: clamp(36px, 5vw, 44px) !important;
    }

    .contact-container {
        grid-template-columns: 1fr !important;
        gap: var(--mobile-spacing-2xl) !important;
    }

    .urgency-content {
        flex-wrap: wrap !important;
        justify-content: center !important;
    }

    .trust-indicators {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: var(--mobile-spacing-lg) !important;
    }
}

/* ================================================
   高对比度模式支持
   ================================================ */
@media (prefers-contrast: high) {
    .mobile-menu-toggle span {
        background: var(--color-text);
        height: 3px;
    }
    
    .mobile-menu {
        border: 2px solid var(--color-text);
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
        background: var(--color-background);
    }

    .urgency-banner {
        border-width: 3px !important;
    }

    .btn-primary,
    .btn-secondary {
        border: 2px solid var(--color-primary) !important;
    }
}

/* ================================================
   减少动画模式支持
   ================================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .success-track.auto-scroll {
        animation: none !important;
    }

    .urgency-banner {
        animation: none !important;
    }

    .urgency-icon {
        animation: none !important;
    }
}

/* ================================================
   打印样式
   ================================================ */
@media print {
    .mobile-menu,
    .mobile-menu-toggle,
    .sticky-contact,
    .mobile-contact-bar,
    .carousel-controls,
    .urgency-banner,
    .social-notification {
        display: none !important;
    }

    .social-proof-section {
        background: white !important;
        color: black !important;
    }

    .btn-primary,
    .btn-secondary {
        border: 2px solid black !important;
        background: white !important;
        color: black !important;
    }
}

/* ================================================
   深色模式优化
   ================================================ */
@media (prefers-color-scheme: dark) {
    .mobile-menu {
        background: rgba(18, 18, 18, 0.95);
    }

    .urgency-banner {
        background: rgba(30, 30, 30, 0.98) !important;
        border-color: #FF6B6B !important;
    }

    .urgency-text h3 {
        color: #FF8A8A !important;
    }

    .trust-item {
        background: rgba(30, 30, 30, 0.9) !important;
        border-color: rgba(255, 255, 255, 0.1) !important;
    }
}