/* ==========================================================================
   产品中心样式 - 完全重构版
   ========================================================================== */

/* 
 * App 展示区 - 现代响应式设计
 * 采用CSS Grid和Flexbox实现灵活的布局
 * 支持从大屏桌面到手机的完整响应式体验
 */

/* 基础样式 - 大屏桌面 (1200px+) */
.apps-showcase-section {
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ec 100%);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

/* 轮播容器 - 使用CSS Grid实现灵活布局 */
.apps-showcase-carousel {
    position: relative;
    width: 100%;
    min-height: 600px; /* 确保有足够高度 */
}

/* 轮播幻灯片 - 默认桌面布局 */
.app-showcase-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    padding: 40px 0 80px;
    
    opacity: 0;
    visibility: hidden;
    transform: translateX(100px);
    pointer-events: none;
    z-index: 1;
    transition: opacity 0.6s ease, transform 0.6s ease, visibility 0.6s ease;
}

.app-showcase-slide.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
    position: relative;
    pointer-events: auto;
    z-index: 2;
}

/* 轮播内容区域 */
.app-showcase-content {
    padding: 20px 20px 100px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    z-index: 3;
}

/* 应用图标容器 */
.app-logo-wrapper {
    width: 120px;
    height: 120px;
    margin-bottom: 30px;
    border-radius: 20px;
    overflow: hidden;
    background-color: #ffffff;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
    position: relative;
    z-index: 4;
}

.app-logo-wrapper:hover {
    transform: scale(1.1) rotate(5deg);
}

.app-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    position: relative;
    z-index: 4;
}

/* 应用标题 */
.app-name {
    font-size: 48px;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 16px;
    line-height: 1.2;
}

/* 应用标语 */
.app-slogan {
    font-size: 20px;
    color: var(--gray-color);
    margin-bottom: 40px;
    line-height: 1.6;
}

/* 下载按钮容器 - 使用Flexbox */
.app-download-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 40px; /* 为控制器预留空间 */
}

/* 商店按钮 - 现代设计 */
.store-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    background: #000000;
    border-radius: 10px;
    text-decoration: none;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    min-width: 180px;
    border: none;
    outline: none;
}

.store-btn.ios-btn {
    background: linear-gradient(135deg, #007aff 0%, #0056b3 100%);
}

.store-btn.android-btn {
    background: linear-gradient(135deg, #4285f4 0%, #34a853 100%);
}

.store-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.store-btn:active {
    transform: translateY(-1px);
}

.store-btn i {
    font-size: 32px;
    color: #ffffff;
}

.store-btn-text {
    display: flex;
    flex-direction: column;
}

.store-btn-small {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.8);
}

.store-btn-big {
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
}

/* 手机模型展示区域 */
.app-phone-mockup {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 2;
}

.phone-frame {
    width: 280px;
    height: 560px;
    border: 8px solid #333;
    border-radius: 36px;
    background: #111;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    position: relative;
}

.phone-screen {
    width: 100%;
    height: 100%;
    border-radius: 28px;
    background: #ffffff;
    overflow: hidden;
    position: relative;
}

.phone-notch {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 150px;
    height: 30px;
    background: #333;
    border-radius: 0 0 16px 16px;
    z-index: 10;
}

/* 轮播控制器 - 默认桌面端样式 */
.apps-showcase-controls {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 30px;
    z-index: 5;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    padding: 10px 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    pointer-events: none;
}

.apps-showcase-controls > * {
    pointer-events: auto;
}

.showcase-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(102, 126, 234, 0.9);
    border: 2px solid rgba(255, 255, 255, 0.5);
    color: #ffffff;
    font-size: 18px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.showcase-btn:hover {
    background: var(--primary-color);
    border-color: #ffffff;
    transform: scale(1.1);
}

.showcase-btn:active {
    transform: scale(0.95);
}

.showcase-indicators {
    display: flex;
    gap: 12px;
}

.showcase-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(102, 126, 234, 0.5);
    cursor: pointer;
    transition: var(--transition);
}

.showcase-indicator:hover {
    background: rgba(102, 126, 234, 0.8);
}

.showcase-indicator.active {
    background: var(--primary-color);
    width: 36px;
    border-radius: 6px;
}

/* ==========================================================================
   现代应用下载区域样式
   ========================================================================== */

.apps-download-section-modern {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.apps-download-section-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="1.5" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="40" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="80" r="1.2" fill="rgba(255,255,255,0.1)"/></svg>');
    animation: float 20s infinite linear;
}

.apps-download-section-modern .section-header {
    position: relative;
    z-index: 2;
}

.apps-download-section-modern .section-title {
    color: #ffffff;
    font-size: 42px;
    margin-bottom: 16px;
}

.apps-download-section-modern .section-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 18px;
    margin-bottom: 0;
}

/* 应用卡片网格 */
.apps-grid-modern {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 40px;
    margin-top: 60px;
    position: relative;
    z-index: 2;
}

/* 应用卡片 */
.app-card-modern {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 24px;
    padding: 40px;
    backdrop-filter: blur(20px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.app-card-modern:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
    background: #ffffff;
}

.app-card-inner {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 30px;
    align-items: center;
}

/* 应用视觉区域 */
.app-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.app-icon-wrapper {
    width: 120px;
    height: 120px;
    border-radius: 28px;
    overflow: hidden;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.app-icon-wrapper:hover {
    transform: scale(1.08) rotate(3deg);
}

.app-icon-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* 评分 */
.app-rating {
    text-align: center;
    background: rgba(102, 126, 234, 0.1);
    padding: 8px 16px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.stars {
    color: #ffc107;
    font-size: 14px;
    margin-bottom: 4px;
}

.rating-text {
    font-size: 13px;
    color: var(--gray-color);
    font-weight: 500;
}

/* 应用内容区域 */
.app-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.app-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 0;
    line-height: 1.2;
}

.app-description {
    font-size: 16px;
    color: var(--gray-color);
    line-height: 1.7;
    margin-bottom: 0;
}

/* 应用特性 */
.app-features-modern {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: rgba(102, 126, 234, 0.1);
    border-radius: 20px;
    font-size: 13px;
    color: var(--primary-color);
    font-weight: 500;
    transition: all 0.3s ease;
}

.feature-item:hover {
    background: rgba(102, 126, 234, 0.2);
    transform: translateY(-2px);
}

.feature-item i {
    font-size: 14px;
}

/* 下载按钮 */
.app-action {
    margin-top: 10px;
}

.download-btn-modern {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    padding: 16px 32px;
    background: linear-gradient(135deg, #007aff 0%, #0051d5 100%);
    border-radius: 16px;
    text-decoration: none;
    color: #ffffff;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 10px 30px rgba(0, 122, 255, 0.3);
    position: relative;
    overflow: hidden;
}

.download-btn-modern:hover {
    transform: translateY(-4px) scale(1.03);
    box-shadow: 0 15px 40px rgba(0, 122, 255, 0.4);
}

.download-btn-modern:active {
    transform: translateY(-2px) scale(1.01);
}

.download-btn-modern::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        to right,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.1) 50%,
        rgba(255, 255, 255, 0) 100%
    );
    transform: rotate(30deg);
    transition: all 0.6s ease;
}

.download-btn-modern:hover::after {
    transform: rotate(30deg) translate(100%, 0);
}

.download-btn-modern .btn-icon {
    font-size: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.download-btn-modern .btn-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.download-btn-modern .btn-subtitle {
    font-size: 12px;
    opacity: 0.8;
    letter-spacing: 0.5px;
}

.download-btn-modern .btn-title {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

/* ==========================================================================
   响应式设计 - 多断点优化
   支持: 桌面(1200px+), 平板(768px-1024px), 手机(480px-768px), 小手机(480px-)
   ========================================================================== */

/* 
 * 大屏桌面 (1200px+)
 * 默认样式已优化
 */

/* 中等屏幕 (768px - 1024px) */
@media (max-width: 1024px) {
    .apps-showcase-section {
        padding: 60px 0 100px;
    }

    .app-showcase-slide {
        gap: 40px;
        padding: 40px 0 80px;
        min-height: 500px;
    }

    .app-showcase-content {
        padding: 20px 20px 80px;
        position: relative;
        z-index: 3;
    }

    .app-name {
        font-size: 36px;
        position: relative;
        z-index: 3;
    }

    .app-slogan {
        font-size: 18px;
        margin-bottom: 30px;
        position: relative;
        z-index: 3;
    }

    .app-logo-wrapper {
        position: relative;
        z-index: 4;
    }

    .app-logo {
        position: relative;
        z-index: 4;
    }

    .app-download-buttons {
        gap: 15px;
        margin-bottom: 40px;
        position: relative;
        z-index: 3;
    }

    .store-btn {
        padding: 10px 20px;
        min-width: 160px;
        position: relative;
        z-index: 3;
    }

    .phone-frame {
        width: 240px;
        height: 480px;
    }

    .apps-showcase-controls {
        bottom: 20px;
        gap: 20px;
        z-index: 3;
    }

    .showcase-btn {
        width: 45px;
        height: 45px;
        font-size: 16px;
    }
}

/*
 * 小屏幕平板和手机 (768px及以下)
 * 这是最需要优化的断点
 */
@media (max-width: 768px) {
    .apps-showcase-section {
        padding: 40px 0 140px;
        min-height: auto;
        position: relative;
        overflow: visible;
    }

    .apps-showcase-carousel {
        min-height: auto;
        position: relative;
        overflow: visible;
    }

    /* 切换为单列布局 */
    .app-showcase-slide {
        grid-template-columns: 1fr;
        gap: 30px;
        position: relative;
        min-height: auto;
        padding: 20px 0 100px;
        height: auto !important;
    }

    .app-showcase-slide.active {
        position: relative;
    }

    .app-showcase-content {
        padding: 0 15px 80px;
        text-align: center;
        order: 2;
        position: relative;
        z-index: 4;
    }

    .app-phone-mockup {
        order: 1;
        margin-bottom: 20px;
        position: relative;
        z-index: 2;
    }

    /* 调整字体大小 */
    .app-name {
        font-size: 32px;
        margin-bottom: 12px;
        position: relative;
        z-index: 4;
    }

    .app-slogan {
        font-size: 16px;
        margin-bottom: 30px;
        position: relative;
        z-index: 4;
    }

    .app-logo-wrapper {
        width: 100px;
        height: 100px;
        margin: 0 auto 20px;
        position: relative;
        z-index: 5;
    }

    .app-logo {
        position: relative;
        z-index: 5;
    }

    /* 下载按钮优化 */
    .app-download-buttons {
        justify-content: center;
        gap: 12px;
        margin-bottom: 40px;
        position: relative;
        z-index: 4;
    }

    .store-btn {
        padding: 10px 18px;
        min-width: 150px;
        flex: 1;
        max-width: 200px;
        position: relative;
        z-index: 4;
    }

    .store-btn i {
        font-size: 24px;
    }

    .store-btn-big {
        font-size: 14px;
    }

    /* 轮播控制器 - 优化位置和样式 */
    .apps-showcase-controls {
        position: absolute;
        bottom: 15px;
        left: 50%;
        transform: translateX(-50%);
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(10px);
        padding: 8px 16px;
        gap: 15px;
        border-radius: 50px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        z-index: 3;
        pointer-events: none;
    }

    .apps-showcase-controls > * {
        pointer-events: auto;
    }

    .showcase-btn {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }

    .showcase-indicators {
        gap: 8px;
    }

    .showcase-indicator {
        width: 10px;
        height: 10px;
    }

    .showcase-indicator.active {
        width: 24px;
    }

    /* 调整手机模型大小 */
    .phone-frame {
        width: 200px;
        height: 400px;
    }
}

/*
 * 中等手机屏幕 (600px及以下)
 * 进一步优化布局和间距
 */
@media (max-width: 600px) {
    .apps-showcase-section {
        padding: 30px 0 130px;
    }

    .app-showcase-slide {
        padding: 15px 0 90px;
    }

    .app-showcase-content {
        padding: 0 10px 70px;
    }

    .app-name {
        font-size: 28px;
        position: relative;
        z-index: 4;
    }

    .app-slogan {
        font-size: 15px;
        margin-bottom: 25px;
        position: relative;
        z-index: 4;
    }

    .app-logo-wrapper {
        width: 90px;
        height: 90px;
        margin: 0 auto 20px;
        position: relative;
        z-index: 5;
    }

    /* 下载按钮垂直排列 */
    .app-download-buttons {
        flex-direction: column;
        align-items: center;
        gap: 10px;
        margin-bottom: 35px;
        position: relative;
        z-index: 4;
    }

    .store-btn {
        width: 100%;
        max-width: 250px;
        justify-content: center;
        position: relative;
        z-index: 4;
    }

    /* 控制器位置调整 */
    .apps-showcase-controls {
        bottom: 12px;
        padding: 6px 12px;
        gap: 12px;
        z-index: 3;
    }

    .showcase-btn {
        width: 36px;
        height: 36px;
        font-size: 14px;
    }

    /* 手机模型进一步缩小 */
    .phone-frame {
        width: 180px;
        height: 360px;
    }
}

/*
 * 小屏幕手机 (480px及以下)
 * 最小屏幕的优化
 */
@media (max-width: 480px) {
    .apps-showcase-section {
        padding: 20px 0 120px;
    }

    .app-showcase-slide {
        padding: 10px 0 80px;
        gap: 20px;
    }

    .app-showcase-content {
        padding: 0 8px 60px;
    }

    .app-name {
        font-size: 24px;
        position: relative;
        z-index: 4;
    }

    .app-slogan {
        font-size: 14px;
        margin-bottom: 20px;
        position: relative;
        z-index: 4;
    }

    .app-logo-wrapper {
        width: 80px;
        height: 80px;
        margin: 0 auto 20px;
        position: relative;
        z-index: 5;
    }

    .app-logo {
        position: relative;
        z-index: 5;
    }

    /* 控制器最终优化 */
    .apps-showcase-controls {
        bottom: 10px;
        padding: 5px 10px;
        gap: 10px;
        max-width: 90%;
        z-index: 3;
    }

    .showcase-btn {
        width: 32px;
        height: 32px;
        font-size: 12px;
    }

    .showcase-indicator {
        width: 8px;
        height: 8px;
    }

    .showcase-indicator.active {
        width: 20px;
    }

    /* 手机模型最小尺寸 */
    .phone-frame {
        width: 160px;
        height: 320px;
        border-width: 6px;
    }
}

/*
 * 横向模式优化
 * 处理手机横向时的布局
 */
@media (max-width: 768px) and (orientation: landscape) {
    .app-showcase-slide {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
        padding: 10px 0 70px;
        height: auto !important;
    }

    .app-showcase-content {
        order: 1;
        padding: 0 10px 50px;
        position: relative;
        z-index: 4;
    }

    .app-phone-mockup {
        order: 2;
        position: relative;
        z-index: 2;
    }

    .app-name {
        font-size: 24px;
        position: relative;
        z-index: 4;
    }

    .app-slogan {
        font-size: 14px;
        margin-bottom: 20px;
        position: relative;
        z-index: 4;
    }

    .app-download-buttons {
        flex-direction: column;
        gap: 8px;
        margin-bottom: 25px;
        position: relative;
        z-index: 4;
    }

    .store-btn {
        padding: 8px 16px;
        min-width: auto;
        position: relative;
        z-index: 4;
    }

    .phone-frame {
        width: 160px;
        height: 320px;
    }
}

/* ==========================================================================
   现代应用下载区域样式 (保持不变)
   ========================================================================== */

.apps-download-section-modern {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.apps-download-section-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="1.5" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="40" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="50" cy="80" r="1.2" fill="rgba(255,255,255,0.1)"/></svg>');
    animation: float 20s infinite linear;
}

.apps-download-section-modern .section-header {
    position: relative;
    z-index: 2;
}

.apps-download-section-modern .section-title {
    color: #ffffff;
    font-size: 42px;
    margin-bottom: 16px;
}

.apps-download-section-modern .section-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 18px;
    margin-bottom: 0;
}

/* 应用卡片网格 */
.apps-grid-modern {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 40px;
    margin-top: 60px;
    position: relative;
    z-index: 2;
}

/* 应用卡片 */
.app-card-modern {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 24px;
    padding: 40px;
    backdrop-filter: blur(20px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.app-card-modern:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
    background: #ffffff;
}

.app-card-inner {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 30px;
    align-items: center;
}

/* 应用视觉区域 */
.app-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.app-icon-wrapper {
    width: 120px;
    height: 120px;
    border-radius: 28px;
    overflow: hidden;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.app-icon-wrapper:hover {
    transform: scale(1.08) rotate(3deg);
}

.app-icon-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* 评分 */
.app-rating {
    text-align: center;
    background: rgba(102, 126, 234, 0.1);
    padding: 8px 16px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.stars {
    color: #ffc107;
    font-size: 14px;
    margin-bottom: 4px;
}

.rating-text {
    font-size: 13px;
    color: var(--gray-color);
    font-weight: 500;
}

/* 应用内容区域 */
.app-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.app-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 0;
    line-height: 1.2;
}

.app-description {
    font-size: 16px;
    color: var(--gray-color);
    line-height: 1.7;
    margin-bottom: 0;
}

/* 应用特性 */
.app-features-modern {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: rgba(102, 126, 234, 0.1);
    border-radius: 20px;
    font-size: 13px;
    color: var(--primary-color);
    font-weight: 500;
    transition: all 0.3s ease;
}

.feature-item:hover {
    background: rgba(102, 126, 234, 0.2);
    transform: translateY(-2px);
}

.feature-item i {
    font-size: 14px;
}

/* 下载按钮 */
.app-action {
    margin-top: 10px;
}

.download-btn-modern {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    padding: 16px 32px;
    background: linear-gradient(135deg, #007aff 0%, #0051d5 100%);
    border-radius: 16px;
    text-decoration: none;
    color: #ffffff;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 10px 30px rgba(0, 122, 255, 0.3);
    position: relative;
    overflow: hidden;
}

.download-btn-modern:hover {
    transform: translateY(-4px) scale(1.03);
    box-shadow: 0 15px 40px rgba(0, 122, 255, 0.4);
}

.download-btn-modern:active {
    transform: translateY(-2px) scale(1.01);
}

.download-btn-modern::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        to right,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.1) 50%,
        rgba(255, 255, 255, 0) 100%
    );
    transform: rotate(30deg);
    transition: all 0.6s ease;
}

.download-btn-modern:hover::after {
    transform: rotate(30deg) translate(100%, 0);
}

.download-btn-modern .btn-icon {
    font-size: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.download-btn-modern .btn-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.download-btn-modern .btn-subtitle {
    font-size: 12px;
    opacity: 0.8;
    letter-spacing: 0.5px;
}

.download-btn-modern .btn-title {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

/* 现代下载区域响应式 */
@media (max-width: 768px) {
    .apps-download-section-modern {
        padding: 60px 0;
    }
    
    .apps-download-section-modern .section-title {
        font-size: 32px;
    }
    
    .apps-grid-modern {
        grid-template-columns: 1fr;
        gap: 30px;
        margin-top: 40px;
    }
    
    .app-card-modern {
        padding: 30px 20px;
    }
    
    .app-card-inner {
        grid-template-columns: 1fr;
        gap: 20px;
        text-align: center;
    }
    
    .app-icon-wrapper {
        width: 100px;
        height: 100px;
        margin: 0 auto;
    }
    
    .app-title {
        font-size: 24px;
    }
    
    .app-description {
        font-size: 14px;
    }
    
    .app-features-modern {
        justify-content: center;
    }
    
    .download-btn-modern {
        padding: 14px 24px;
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .apps-download-section-modern .section-title {
        font-size: 28px;
    }
    
    .app-card-modern {
        padding: 20px 15px;
    }
    
    .app-icon-wrapper {
        width: 80px;
        height: 80px;
    }
    
    .download-btn-modern {
        padding: 12px 20px;
    }
    
    .download-btn-modern .btn-icon {
        font-size: 24px;
    }
    
    .download-btn-modern .btn-title {
        font-size: 16px;
    }
}

/* ==========================================================================
   动画
   ========================================================================== */

@keyframes float {
    0% { transform: translate(0, 0); }
    100% { transform: translate(-100px, -100px); }
}

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

/* 添加微妙的背景动画 */
.apps-showcase-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="10" cy="10" r="0.5" fill="rgba(102,126,234,0.03)"/><circle cx="90" cy="30" r="0.3" fill="rgba(102,126,234,0.03)"/><circle cx="50" cy="90" r="0.4" fill="rgba(102,126,234,0.03)"/></svg>');
    animation: float 30s infinite linear;
    pointer-events: none;
}

.apps-showcase-section {
    position: relative;
}

.apps-showcase-section > .container {
    position: relative;
    z-index: 2;
}

/* ==========================================================================
   现代提示区域样式
   ========================================================================== */

.downloads-notice-section-modern {
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ec 100%);
    padding: 60px 0;
    position: relative;
}

.downloads-notice-section-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="10" cy="10" r="0.8" fill="rgba(102,126,234,0.05)"/><circle cx="90" cy="30" r="0.6" fill="rgba(102,126,234,0.05)"/><circle cx="50" cy="90" r="0.7" fill="rgba(102,126,234,0.05)"/></svg>');
}

.notice-modern {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 30px;
    align-items: center;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.1);
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
}

.notice-icon {
    font-size: 48px;
    color: var(--primary-color);
    opacity: 0.8;
    display: flex;
    align-items: center;
    justify-content: center;
}

.notice-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.notice-title-modern {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 0;
    display: flex;
    align-items: center;
    gap: 12px;
}

.notice-title-modern::before {
    content: '';
    width: 6px;
    height: 24px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 3px;
}

.notice-list-modern {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 12px;
}

.notice-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    color: var(--gray-color);
    font-size: 15px;
    line-height: 1.5;
}

.notice-item i {
    color: var(--primary-color);
    font-size: 16px;
    margin-top: 2px;
    flex-shrink: 0;
}

.notice-item span {
    flex: 1;
}

.notice-action {
    display: flex;
    align-items: center;
}

.support-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 24px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: #ffffff;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
    white-space: nowrap;
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.support-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(102, 126, 234, 0.4);
    color: #ffffff;
}

.support-btn i {
    font-size: 16px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .downloads-notice-section-modern {
        padding: 40px 0;
    }
    
    .notice-modern {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 30px 20px;
        text-align: center;
    }
    
    .notice-icon {
        font-size: 36px;
    }
    
    .notice-title-modern {
        font-size: 20px;
        justify-content: center;
    }
    
    .notice-title-modern::before {
        display: none;
    }
    
    .notice-list-modern {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    
    .notice-item {
        text-align: left;
    }
    
    .notice-action {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .notice-modern {
        padding: 20px 15px;
    }
    
    .notice-icon {
        font-size: 32px;
    }
    
    .notice-title-modern {
        font-size: 18px;
    }
    
    .notice-item {
        font-size: 14px;
        padding: 10px 0;
    }
    
    .support-btn {
        padding: 12px 20px;
        font-size: 13px;
    }
}

/* 手机模型 */
.app-phone-mockup {
    display: flex;
    justify-content: center;
}

.phone-frame {
    width: 300px;
    height: 600px;
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    border-radius: 40px;
    padding: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    transition: var(--transition);
}

.phone-frame:hover {
    transform: translateY(-10px);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #ffffff;
    border-radius: 30px;
    overflow: hidden;
    position: relative;
}

.phone-notch {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 150px;
    height: 30px;
    background: #2c3e50;
    border-radius: 0 0 20px 20px;
    z-index: 10;
}

.app-preview-carousel {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-slide.active {
    opacity: 1;
    z-index: 1;
}

.carousel-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 30px;
}

.carousel-indicators {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: var(--transition);
}

.indicator:hover,
.indicator.active {
    background: #ffffff;
    width: 30px;
    border-radius: 6px;
}

.carousel-control {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.5);
    border: 2px solid rgba(255, 255, 255, 0.5);
    color: #ffffff;
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition);
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-control:hover {
    background: rgba(0, 0, 0, 0.8);
    border-color: #ffffff;
    transform: translateY(-50%) scale(1.1);
}

.carousel-control.prev {
    left: 10px;
}

.carousel-control.next {
    right: 10px;
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 功能特色区域 */
.app-features-section {
    background: #ffffff;
    padding: 100px 0;
    position: relative;
}

.app-features-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
}

.app-features-section.alternate-bg {
    background: linear-gradient(180deg, #fafbfc 0%, #f5f7fa 100%);
}

/* 区域标题 */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    color: #1a202c;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.section-subtitle {
    font-size: 18px;
    color: #718096;
    font-weight: 400;
    letter-spacing: 0.5px;
}

/* 功能网格 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    margin-top: 50px;
}

/* 功能卡片 */
.feature-item {
    background: #ffffff;
    padding: 48px 36px;
    border-radius: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05), 0 10px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.feature-item:hover::before {
    transform: scaleX(1);
}

.feature-item:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.15), 0 10px 20px rgba(0, 0, 0, 0.1);
}

.alternate-bg .feature-item {
    background: #ffffff;
    border: 1px solid #e2e8f0;
}

.alternate-bg .feature-item::before {
    background: linear-gradient(90deg, #f093fb 0%, #f5576c 100%);
}

/* 功能图标 */
.feature-icon {
    width: 88px;
    height: 88px;
    margin: 0 auto 28px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 36px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

.feature-icon::after {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    border-radius: 28px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    opacity: 0;
    z-index: -1;
    transition: opacity 0.4s ease;
}

.feature-item:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 12px 30px rgba(102, 126, 234, 0.4);
}

.feature-item:hover .feature-icon::after {
    opacity: 0.2;
}

.alternate-bg .feature-icon {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    box-shadow: 0 8px 20px rgba(240, 147, 251, 0.3);
}

.alternate-bg .feature-item:hover .feature-icon {
    box-shadow: 0 12px 30px rgba(240, 147, 251, 0.4);
}

.alternate-bg .feature-icon::after {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

/* 功能标题 */
.feature-title {
    font-size: 22px;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 16px;
    letter-spacing: -0.3px;
}

/* 功能描述 */
.feature-desc {
    color: #718096;
    line-height: 1.75;
    font-size: 15px;
    font-weight: 400;
    letter-spacing: 0.2px;
}

/* 用户评价区域 */
.testimonials-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.testimonials-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.testimonials-section .section-title,
.testimonials-section .section-subtitle {
    color: #ffffff;
    position: relative;
    z-index: 1;
}

.testimonials-section .section-subtitle {
    color: rgba(255, 255, 255, 0.9);
}

/* 评价网格 */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    margin-top: 50px;
    position: relative;
    z-index: 1;
}

/* 评价卡片 */
.testimonial-card {
    background: #ffffff;
    padding: 48px 40px;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 20px;
    left: 28px;
    font-size: 120px;
    font-weight: 700;
    color: rgba(102, 126, 234, 0.1);
    font-family: Georgia, serif;
    line-height: 1;
}

.testimonial-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.15);
}

/* 评价引用图标 */
.testimonial-quote {
    font-size: 32px;
    color: rgba(102, 126, 234, 0.2);
    margin-bottom: 20px;
    display: none;
}

/* 评价文本 */
.testimonial-text {
    color: #4a5568;
    line-height: 1.9;
    margin-bottom: 36px;
    font-style: italic;
    font-size: 16px;
    font-weight: 400;
    letter-spacing: 0.2px;
}

/* 评价作者信息 */
.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
    padding-top: 28px;
    border-top: 1px solid #e2e8f0;
}

/* 作者头像 */
.author-avatar {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 28px;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

/* 作者信息 */
.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-size: 18px;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 4px;
    letter-spacing: -0.3px;
}

.author-title {
    font-size: 14px;
    color: #718096;
    font-weight: 500;
}

/* 响应式 */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 24px;
    }

    .feature-item {
        padding: 40px 28px;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .testimonial-card {
        padding: 40px 32px;
    }
}

@media (max-width: 768px) {
    .app-features-section,
    .testimonials-section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 32px;
    }

    .section-subtitle {
        font-size: 16px;
    }

    .phone-frame {
        width: 250px;
        height: 500px;
    }

    .carousel-control {
        width: 32px;
        height: 32px;
        font-size: 14px;
    }

    .carousel-control.prev {
        left: 5px;
    }

    .carousel-control.next {
        right: 5px;
    }

    .carousel-indicators {
        bottom: 15px;
    }

    .feature-icon {
        width: 72px;
        height: 72px;
        font-size: 30px;
        margin-bottom: 20px;
    }

    .feature-title {
        font-size: 18px;
    }

    .feature-desc {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 28px;
    }

    .section-subtitle {
        font-size: 15px;
    }

    .phone-frame {
        width: 220px;
        height: 440px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .feature-item {
        padding: 36px 24px;
    }

    .testimonial-card {
        padding: 36px 28px;
    }

    .testimonial-card::before {
        font-size: 80px;
        top: 16px;
        left: 20px;
    }
}