/* XM APP下载 - 暗黑科技风格样式 */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-black: #000000;
    --primary-blue: #1e3a8a;
    --dark-blue: #1e40af;
    --accent-blue: #3b82f6;
    --text-white: #ffffff;
    --text-gray: #d1d5db;
    --gradient-primary: linear-gradient(135deg, #000000 0%, #1e3a8a 100%);
    --glow-blue: 0 0 20px rgba(59, 130, 246, 0.5);
}

body {
    font-family: 'Arial', 'Microsoft YaHei', sans-serif;
    background: var(--primary-black);
    color: var(--text-white);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(0, 0, 0, 0.95);
    box-shadow: 0 2px 20px rgba(59, 130, 246, 0.2);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.logo img {
    height: 40px;
    transition: transform 0.3s ease;
}

.logo img:hover {
    transform: scale(1.05);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-white);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a:hover {
    color: var(--accent-blue);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-blue);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-white);
    font-size: 1.5rem;
    cursor: pointer;
}

/* 英雄区域 */
.hero {
    min-height: 100vh;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('../image/APP下载_cover_pexels_01.jpg') center/cover;
    opacity: 0.2;
    z-index: 1;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 2;
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    background: linear-gradient(45deg, var(--text-white), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
    from {
        text-shadow: 0 0 20px rgba(59, 130, 246, 0.5);
    }
    to {
        text-shadow: 0 0 30px rgba(59, 130, 246, 0.8);
    }
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-gray);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* 下载按钮 */
.download-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.download-btn {
    background: var(--gradient-primary);
    color: var(--text-white);
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    border: 2px solid var(--accent-blue);
    box-shadow: var(--glow-blue);
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.4);
    background: var(--accent-blue);
}

.download-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.download-btn:hover::before {
    left: 100%;
}

/* 功能特性区域 */
.features {
    padding: 5rem 0;
    background: linear-gradient(180deg, var(--primary-black) 0%, var(--primary-blue) 100%);
}

.features-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(59, 130, 246, 0.2);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(59, 130, 246, 0.2);
    border-color: var(--accent-blue);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--accent-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-white);
}

.feature-card p {
    color: var(--text-gray);
    line-height: 1.6;
}

/* 文章列表 */
.articles {
    padding: 5rem 0;
    background: var(--primary-black);
}

.articles-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.article-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1.5rem;
}

.article-list li {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 1.5rem;
    border-left: 4px solid var(--accent-blue);
    transition: all 0.3s ease;
}

.article-list li:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateX(5px);
}

.article-list a {
    color: var(--text-white);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.article-list a:hover {
    color: var(--accent-blue);
}

/* 底部 */
.footer {
    background: var(--primary-black);
    padding: 3rem 0 1rem;
    border-top: 1px solid rgba(59, 130, 246, 0.2);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    text-align: center;
}

.footer-logo {
    margin-bottom: 2rem;
}

.footer-logo img {
    height: 50px;
}

.footer-text {
    color: var(--text-gray);
    margin-bottom: 1rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-gray);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--accent-blue);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(0, 0, 0, 0.95);
        flex-direction: column;
        padding: 2rem;
        gap: 1rem;
    }

    .nav-links.active {
        display: flex;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .download-buttons {
        flex-direction: column;
        align-items: center;
    }

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

    .article-list {
        grid-template-columns: 1fr;
    }

    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }
}

/* 滚动动画 */
.scroll-animate {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.scroll-animate.active {
    opacity: 1;
    transform: translateY(0);
}

/* 文章页面样式 */
.article-header {
    background: var(--gradient-primary);
    padding: 8rem 0 4rem;
    text-align: center;
}

.article-title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-white);
}

.article-meta {
    color: var(--text-gray);
    margin-bottom: 2rem;
}

.article-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem 2rem;
    background: var(--primary-black);
}

.article-content p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
    color: var(--text-gray);
}

.article-content h2,
.article-content h3 {
    color: var(--text-white);
    margin: 2rem 0 1rem;
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    list-style: none;
    gap: 0.5rem;
    margin: 3rem 0;
}

.pagination li {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 5px;
}

.pagination a {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--text-white);
    text-decoration: none;
    transition: all 0.3s ease;
}

.pagination a:hover,
.pagination .current a {
    background: var(--accent-blue);
    color: var(--text-white);
}

/* 列表页面样式 */
.list-header {
    background: var(--gradient-primary);
    padding: 8rem 0 4rem;
    text-align: center;
}

.list-content {
    padding: 3rem 0;
    background: var(--primary-black);
}

.list-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 2rem;
}

.article-item {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 2rem;
    margin-bottom: 2rem;
    border-left: 4px solid var(--accent-blue);
    transition: all 0.3s ease;
}

.article-item:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.1);
}

.article-item h3 {
    margin-bottom: 1rem;
}

.article-item h3 a {
    color: var(--text-white);
    text-decoration: none;
    font-size: 1.3rem;
    transition: color 0.3s ease;
}

.article-item h3 a:hover {
    color: var(--accent-blue);
}

.article-date {
    color: var(--text-gray);
    font-size: 0.9rem;
}