/* 香槟色调色板 */
:root {
    --champagne: #f7e7ce;
    --gold: #d4af37;
    --light-gold: #f5d993;
    --dark-champagne: #e6d5b8;
    --text-dark: #4a4a4a;
    --text-light: #6d6d6d;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.12);
    --transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.1);
}

/* 基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Cormorant Garamond', serif;
    background-color: var(--champagne);
    color: var(--text-dark);
    line-height: 1.7;
    overflow-x: hidden;
}

/* 渐进式加载动画 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.progressive-load {
    opacity: 0;
    animation: fadeIn 0.6s forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

/* 布局容器 */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 5%;
}

/* 优雅的头部 */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(247, 231, 206, 0.95);
    backdrop-filter: blur(8px);
    padding: 1.5rem 0;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.header-scrolled {
    padding: 1rem 0;
    box-shadow: var(--shadow-md);
}

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

.logo {
    font-size: 2rem;
    font-weight: 600;
    color: var(--gold);
    letter-spacing: 1px;
    transition: var(--transition);
}

.logo:hover {
    color: var(--text-dark);
}

/* 导航菜单 */
.nav-menu {
    display: flex;
    list-style: none;
}

.nav-item {
    margin-left: 2.5rem;
    position: relative;
}

.nav-link {
    color: var(--text-dark);
    font-size: 1.1rem;
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    transition: var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--gold);
    transition: var(--transition);
}

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

/* 主内容区 */
.main-content {
    padding: 8rem 0 4rem;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--gold);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60%;
    height: 3px;
    background: linear-gradient(to right, var(--gold), transparent);
}

/* 杂志风格文章网格 */
.article-magazine {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.article-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    opacity: 0;
    transform: translateY(20px);
}

.article-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.article-card:hover {
    transform: translateY(-10px) !important;
    box-shadow: var(--shadow-md);
}

.card-image-container {
    height: 220px;
    overflow: hidden;
    position: relative;
}

.card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.article-card:hover .card-image {
    transform: scale(1.05);
}

.card-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background-color: var(--gold);
    color: white;
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.card-body {
    padding: 1.5rem;
}

.card-title {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    font-weight: 600;
    line-height: 1.4;
}

.card-excerpt {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: var(--text-light);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    padding-top: 1rem;
}

/* 特色文章 */
.featured-article {
    grid-column: span 2;
    display: flex;
    flex-direction: column;
}

.featured-article .card-image-container {
    height: 350px;
}

.featured-article .card-body {
    padding: 2rem;
}

.featured-article .card-title {
    font-size: 1.8rem;
}

/* 文章详情页 */
.article-detail {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    border-radius: 12px;
    padding: 3rem;
    box-shadow: var(--shadow-sm);
}

.article-header {
    text-align: center;
    margin-bottom: 3rem;
}

.article-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.3;
}

.article-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    color: var(--text-light);
    font-size: 0.95rem;
}

.article-meta span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.article-image {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-md);
}

.article-content {
    font-size: 1.1rem;
    line-height: 1.8;
}

.article-content p {
    margin-bottom: 1.5rem;
}

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 2rem 0;
    box-shadow: var(--shadow-sm);
}

/* 分页导航 */
.pagination {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 3rem;
}

.pagination a {
    padding: 0.8rem 1.5rem;
    background-color: white;
    border-radius: 8px;
    color: var(--text-dark);
    font-weight: 500;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.pagination a:hover {
    background-color: var(--gold);
    color: white;
}

/* 分类标签 */
.category-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin: 2rem 0;
}

.tag {
    padding: 0.5rem 1.2rem;
    background-color: var(--light-gold);
    border-radius: 20px;
    font-size: 0.9rem;
    transition: var(--transition);
}

.tag:hover {
    background-color: var(--gold);
    color: white;
}

/* 页脚 */
footer {
    background-color: var(--dark-champagne);
    padding: 4rem 0 2rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-column h3 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: var(--gold);
}

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

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: var(--text-dark);
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--gold);
    padding-left: 0.5rem;
}

.copyright {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    color: var(--text-light);
}

/* 响应式设计 */
@media (max-width: 992px) {
    .featured-article {
        grid-column: span 1;
    }
    
    .featured-article .card-image-container {
        height: 220px;
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav-item {
        margin: 0 1rem;
    }
    
    .article-title {
        font-size: 2rem;
    }
    
    .article-image {
        height: 350px;
    }
}

/* 渐进式交互效果 */
.hover-grow {
    transition: var(--transition);
}

.hover-grow:hover {
    transform: scale(1.03);
}

.hover-shadow {
    transition: var(--transition);
}

.hover-shadow:hover {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}