/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #000000;
    --secondary-color: #ffffff;
    --accent-color: #00ffff;
    --gray-dark: #1a1a1a;
    --gray-medium: #333333;
    --gray-light: #666666;
    --gray-lighter: #999999;
    --bg-color: #0a0a0a;
    --card-bg: #111111;
    --border-color: #222222;
}

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
    background-color: var(--bg-color);
    color: var(--secondary-color);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--accent-color);
}

/* 导航栏 */
.navbar {
    background-color: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo {
    height: 40px;
    width: auto;
}

.site-name {
    font-size: 24px;
    font-weight: bold;
    color: var(--secondary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    color: var(--gray-lighter);
    font-size: 16px;
    padding: 8px 16px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--accent-color);
    background-color: rgba(0, 255, 255, 0.1);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background-color: var(--secondary-color);
    transition: all 0.3s ease;
}

/* 横幅区域 */
.hero {
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a1a 100%);
    padding: 100px 0;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 255, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 64px;
    font-weight: bold;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #ffffff 0%, #00ffff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 4px;
}

.hero-subtitle {
    font-size: 28px;
    color: var(--gray-lighter);
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.hero-description {
    font-size: 18px;
    color: var(--gray-light);
    max-width: 800px;
    margin: 0 auto;
}

/* 区块标题 */
.section-title {
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 40px;
    text-align: center;
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--accent-color), transparent);
}

/* 推荐文章 */
.featured-articles {
    padding: 80px 0;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.article-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 30px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.article-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-color), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.article-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: 0 10px 30px rgba(0, 255, 255, 0.1);
}

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

.card-badge {
    display: inline-block;
    background-color: rgba(0, 255, 255, 0.1);
    color: var(--accent-color);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
    margin-bottom: 15px;
    border: 1px solid var(--accent-color);
}

.card-content h3 {
    font-size: 20px;
    margin-bottom: 10px;
    line-height: 1.4;
}

.card-content h3 a:hover {
    color: var(--accent-color);
}

.card-meta {
    color: var(--gray-lighter);
    font-size: 14px;
    margin-bottom: 15px;
}

.card-excerpt {
    color: var(--gray-light);
    font-size: 14px;
    margin-bottom: 20px;
    line-height: 1.6;
}

.read-more {
    color: var(--accent-color);
    font-size: 14px;
    font-weight: bold;
    display: inline-block;
}

.read-more:hover {
    text-decoration: underline;
}

/* 最新文章列表 */
.latest-articles {
    padding: 80px 0;
    background-color: rgba(17, 17, 17, 0.5);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.articles-list {
    max-width: 900px;
    margin: 0 auto;
}

.article-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.article-item:last-child {
    border-bottom: none;
}

.article-item:hover {
    background-color: rgba(0, 255, 255, 0.05);
    padding-left: 30px;
}

.article-category {
    min-width: 80px;
    background-color: rgba(0, 255, 255, 0.1);
    color: var(--accent-color);
    padding: 5px 12px;
    border-radius: 4px;
    text-align: center;
    font-size: 14px;
    font-weight: bold;
    border: 1px solid var(--accent-color);
}

.article-info {
    flex: 1;
}

.article-info h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

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

.article-info .meta {
    color: var(--gray-lighter);
    font-size: 14px;
}

/* 关于站长 */
.about-author {
    padding: 80px 0;
}

.author-card {
    display: flex;
    align-items: center;
    gap: 50px;
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 50px;
}

.author-avatar {
    flex-shrink: 0;
}

.author-avatar img {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    border: 3px solid var(--accent-color);
    object-fit: cover;
}

.author-info {
    flex: 1;
}

.author-info h3 {
    font-size: 32px;
    margin-bottom: 20px;
    color: var(--accent-color);
}

.author-info p {
    font-size: 16px;
    color: var(--gray-light);
    margin-bottom: 10px;
}

.btn-contact {
    display: inline-block;
    margin-top: 20px;
    padding: 12px 30px;
    background-color: transparent;
    color: var(--accent-color);
    border: 2px solid var(--accent-color);
    border-radius: 4px;
    font-size: 16px;
    font-weight: bold;
    transition: all 0.3s ease;
}

.btn-contact:hover {
    background-color: var(--accent-color);
    color: var(--primary-color);
}

/* 页尾 */
.footer {
    background-color: var(--primary-color);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand {
    text-align: center;
}

.footer-logo {
    height: 60px;
    margin-bottom: 15px;
}

.footer-brand p {
    color: var(--gray-light);
    font-size: 14px;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--gray-light);
    font-size: 14px;
}

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

.footer-contact p {
    color: var(--gray-light);
    font-size: 14px;
    margin-bottom: 8px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    color: var(--gray-light);
    font-size: 14px;
    margin-bottom: 10px;
}

.footer-bottom a {
    color: var(--accent-color);
}

.footer-bottom a:hover {
    text-decoration: underline;
}

/* 文章详情页 */
.article-detail {
    padding: 80px 0;
}

.article-header {
    max-width: 900px;
    margin: 0 auto 50px;
    text-align: center;
}

.article-header h1 {
    font-size: 42px;
    margin-bottom: 20px;
    line-height: 1.3;
}

.article-header .meta {
    color: var(--gray-lighter);
    font-size: 16px;
}

.article-body {
    max-width: 900px;
    margin: 0 auto;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 50px;
    line-height: 1.8;
}

.article-body h2 {
    font-size: 28px;
    margin: 40px 0 20px;
    color: var(--accent-color);
}

.article-body h3 {
    font-size: 24px;
    margin: 30px 0 15px;
    color: var(--secondary-color);
}

.article-body p {
    margin-bottom: 20px;
    color: var(--gray-light);
    font-size: 16px;
}

.article-body ul,
.article-body ol {
    margin: 20px 0;
    padding-left: 30px;
    color: var(--gray-light);
}

.article-body li {
    margin-bottom: 10px;
}

.article-body blockquote {
    border-left: 3px solid var(--accent-color);
    padding-left: 20px;
    margin: 30px 0;
    color: var(--gray-light);
    font-style: italic;
}

/* 栏目页 */
.category-page {
    padding: 80px 0;
}

.category-header {
    text-align: center;
    margin-bottom: 50px;
}

.category-header h1 {
    font-size: 42px;
    margin-bottom: 20px;
}

.category-header p {
    color: var(--gray-light);
    font-size: 18px;
}

.category-articles {
    max-width: 1000px;
    margin: 0 auto;
}

.category-article-item {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 30px;
    margin-bottom: 30px;
    transition: all 0.3s ease;
}

.category-article-item:hover {
    border-color: var(--accent-color);
    transform: translateX(5px);
}

.category-article-item h3 {
    font-size: 24px;
    margin-bottom: 10px;
}

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

.category-article-item .meta {
    color: var(--gray-lighter);
    margin-bottom: 15px;
}

.category-article-item .excerpt {
    color: var(--gray-light);
    line-height: 1.6;
}

/* 联系页 */
.contact-page {
    padding: 80px 0;
}

.contact-container {
    max-width: 800px;
    margin: 0 auto;
}

.contact-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 50px;
    margin-bottom: 40px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
}

.contact-item:last-child {
    border-bottom: none;
}

.contact-icon {
    font-size: 32px;
    color: var(--accent-color);
}

.contact-info h3 {
    font-size: 20px;
    margin-bottom: 5px;
}

.contact-info p {
    color: var(--gray-light);
    font-size: 16px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--gray-dark);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 20px 0;
        gap: 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: 15px 0;
    }

    .hamburger {
        display: flex;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 20px;
    }

    .hero-description {
        font-size: 16px;
    }

    .section-title {
        font-size: 28px;
    }

    .author-card {
        flex-direction: column;
        text-align: center;
        padding: 30px;
    }

    .author-avatar img {
        width: 150px;
        height: 150px;
    }

    .article-body {
        padding: 30px;
    }

    .article-header h1 {
        font-size: 28px;
    }

    .article-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
}