/* CSS重置和变量定义 */
:root {
    --primary-color: #ff6b6b;
    --secondary-color: #4ecdc4;
    --accent-color: #45b7d1;
    --dark-color: #2c3e50;
    --light-color: #ecf0f1;
    --text-color: #333;
    --text-light: #666;
    --border-radius: 8px;
    --box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
    --container-max-width: 1200px;
    --mobile-breakpoint: 768px;
    --tablet-breakpoint: 1024px;
}

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

body {
    font-family: 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #f8f9fa;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏样式 */
.navbar {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo h1 {
    color: white;
    font-size: 1.8rem;
    font-weight: bold;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

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

.nav-link {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
}

.nav-link:hover {
    background-color: rgba(255,255,255,0.2);
    transform: translateY(-2px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: white;
    margin: 3px 0;
    transition: var(--transition);
}

/* Hero区域样式 */
.hero-section {
    margin-top: 80px;
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    display: flex;
    align-items: center;
    min-height: 500px;
}

.hero-content {
    flex: 1;
    padding: 0 20px;
}

.hero-content h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: bold;
    animation: fadeInUp 1s ease;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.2s;
    animation-fill-mode: both;
}

.cta-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 15px 30px;
    font-size: 1.1rem;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    animation: fadeInUp 1s ease 0.4s;
    animation-fill-mode: both;
}

.cta-button:hover {
    background-color: #ff5252;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.manga-preview {
    display: grid;
    grid-template-columns: repeat(2, 120px);
    gap: 20px;
    transform: rotate(5deg);
}

.preview-item {
    width: 120px;
    height: 160px;
    background: linear-gradient(45deg, #ff9a9e, #fad0c4);
    border-radius: var(--border-radius);
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
    animation: float 3s ease-in-out infinite;
}

.preview-item-2 {
    animation-delay: 1s;
    background: linear-gradient(45deg, #a8edea, #fed6e3);
}

.preview-item-3 {
    animation-delay: 2s;
    background: linear-gradient(45deg, #ffecd2, #fcb69f);
}

/* 通用区块样式 */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--dark-color);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    margin: 1rem auto;
    border-radius: 2px;
}

/* 漫画网格布局 */
.popular-section {
    padding: 80px 0;
    background-color: white;
}

.manga-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 30px;
    padding: 20px 0;
}

.manga-card {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
}

.manga-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.manga-cover {
    width: 100%;
    height: 280px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    position: relative;
    overflow: hidden;
}

.manga-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.manga-info {
    padding: 15px;
}

.manga-title {
    font-size: 1.1rem;
    font-weight: bold;
    margin-bottom: 8px;
    color: var(--dark-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.manga-author {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: 8px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.manga-badge {
    position: absolute;
    top: 5px;
    right: 5px;
    display: flex;
    flex-direction: column;
    gap: 3px;
    font-size: 0.75rem;
    font-weight: bold;
    z-index: 2;
}

.badge-views,
.badge-favorites {
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 2px 6px;
    border-radius: 10px;
    backdrop-filter: blur(5px);
}

.manga-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 8px;
}

.tag {
    background: linear-gradient(45deg, var(--secondary-color), var(--accent-color));
    color: white;
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: 500;
}

.manga-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: var(--text-light);
}

.manga-rating {
    display: flex;
    align-items: center;
    gap: 5px;
}

.rating-star {
    color: #ffc107;
}

/* 分类区域样式 */
.categories-section {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.category-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.category-item {
    background: white;
    padding: 30px 20px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

.category-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 5px 20px rgba(255,107,107,0.3);
}

.category-icon {
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.category-item span {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--dark-color);
}

/* 最新更新区域 */
.latest-section {
    padding: 80px 0;
    background-color: white;
}

.latest-list {
    display: grid;
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.latest-item {
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: var(--border-radius);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: var(--transition);
    cursor: pointer;
}

.latest-item:hover {
    box-shadow: var(--box-shadow);
    transform: translateX(10px);
}

.latest-cover {
    width: 80px;
    height: 100px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    border-radius: var(--border-radius);
    flex-shrink: 0;
}

.latest-info {
    flex: 1;
}

.latest-title {
    font-weight: bold;
    margin-bottom: 5px;
    color: var(--dark-color);
}

.latest-chapter {
    color: var(--primary-color);
    font-size: 0.9rem;
    margin-bottom: 5px;
}

.latest-time {
    color: var(--text-light);
    font-size: 0.8rem;
}

/* 数据统计区域样式 */
.statistics-section {
    padding: 80px 0;
    background-color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.stat-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    color: white;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: float 6s ease-in-out infinite;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
    opacity: 0.9;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
    margin-bottom: 10px;
}

.stat-change {
    font-size: 0.9rem;
    font-weight: 500;
    padding: 4px 8px;
    border-radius: 15px;
    background: rgba(255,255,255,0.2);
    display: inline-block;
}

.stat-change.positive {
    color: #4ade80;
}

.stat-change.negative {
    color: #f87171;
}

.charts-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 50px;
}

.chart-card {
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--box-shadow);
}

.chart-card h3 {
    margin-bottom: 20px;
    color: var(--dark-color);
    font-size: 1.3rem;
}

.chart-content {
    min-height: 250px;
}

.ranking-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.ranking-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.ranking-item:hover {
    background: #e9ecef;
    transform: translateX(5px);
}

.ranking-number {
    width: 30px;
    height: 30px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 0.9rem;
}

.ranking-number.top3 {
    background: linear-gradient(135deg, #ffc107, #ff9800);
}

.ranking-info {
    flex: 1;
}

.ranking-title {
    font-weight: 500;
    color: var(--dark-color);
    margin-bottom: 5px;
}

.ranking-stats {
    font-size: 0.85rem;
    color: var(--text-light);
}

.ranking-views {
    color: var(--primary-color);
    font-weight: 500;
}

.category-chart {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.category-bar {
    display: flex;
    align-items: center;
    gap: 15px;
}

.category-name {
    min-width: 60px;
    font-weight: 500;
    color: var(--dark-color);
}

.category-progress {
    flex: 1;
    height: 25px;
    background: #f0f0f0;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
}

.category-fill {
    height: 100%;
    border-radius: 12px;
    transition: width 1s ease;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 10px;
    color: white;
    font-size: 0.8rem;
    font-weight: 500;
}

.activity-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.activity-card {
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--box-shadow);
}

.activity-card h3 {
    margin-bottom: 20px;
    color: var(--dark-color);
    font-size: 1.3rem;
}

.update-count {
    text-align: center;
    margin-bottom: 20px;
}

.big-number {
    font-size: 3rem;
    font-weight: bold;
    color: var(--primary-color);
    display: block;
    margin-bottom: 5px;
}

.update-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 200px;
    overflow-y: auto;
}

.update-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    background: #f8f9fa;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
}

.update-time {
    color: var(--text-light);
    font-size: 0.8rem;
    margin-left: auto;
}

.activity-chart {
    margin-bottom: 20px;
}

.bar-chart {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    height: 120px;
    padding: 10px;
    background: #f8f9fa;
    border-radius: var(--border-radius);
}

.bar {
    flex: 1;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 4px 4px 0 0;
    position: relative;
    transition: var(--transition);
    cursor: pointer;
}

.bar:hover {
    opacity: 0.8;
}

.bar-label {
    position: absolute;
    bottom: -25px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.7rem;
    color: var(--text-light);
}

.activity-summary {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.summary-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    background: #f8f9fa;
    border-radius: var(--border-radius);
}

.summary-label {
    color: var(--text-light);
    font-size: 0.9rem;
}

.summary-value {
    font-weight: bold;
    color: var(--primary-color);
}

/* 评论区域样式 */
.comments-section {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.comments-container {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 40px;
    align-items: start;
}

.comment-form-container {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    position: sticky;
    top: 100px;
}

.comment-form-container h3 {
    margin-bottom: 20px;
    color: var(--dark-color);
    font-size: 1.3rem;
}

.comment-form .form-group {
    margin-bottom: 20px;
}

.comment-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark-color);
}

.comment-form input,
.comment-form select,
.comment-form textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
}

.comment-form input:focus,
.comment-form select:focus,
.comment-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(255, 107, 107, 0.1);
}

.rating-input {
    display: flex;
    gap: 5px;
    font-size: 1.5rem;
}

.rating-star {
    cursor: pointer;
    color: #ddd;
    transition: var(--transition);
}

.rating-star:hover,
.rating-star.active {
    color: #ffc107;
    transform: scale(1.1);
}

.submit-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 107, 107, 0.3);
}

.comments-display {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.comments-filters {
    display: flex;
    gap: 15px;
    margin-bottom: 30px;
    border-bottom: 2px solid #f0f0f0;
    padding-bottom: 20px;
}

.filter-btn {
    background: none;
    border: none;
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
    color: var(--text-light);
    font-weight: 500;
}

.filter-btn:hover {
    background-color: #f0f0f0;
}

.filter-btn.active {
    background-color: var(--primary-color);
    color: white;
}

.comments-list {
    margin-bottom: 30px;
}

.comment-item {
    padding: 20px;
    border: 1px solid #e0e0e0;
    border-radius: var(--border-radius);
    margin-bottom: 15px;
    transition: var(--transition);
}

.comment-item:hover {
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.comment-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.comment-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 1.2rem;
}

.comment-info {
    flex: 1;
}

.comment-username {
    font-weight: bold;
    color: var(--dark-color);
    margin-bottom: 5px;
}

.comment-meta {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 0.85rem;
    color: var(--text-light);
}

.comment-rating {
    color: #ffc107;
}

.comment-manga {
    background-color: var(--primary-color);
    color: white;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.75rem;
}

.comment-content {
    line-height: 1.6;
    color: var(--text-color);
    margin-bottom: 15px;
}

.comment-actions {
    display: flex;
    gap: 20px;
    font-size: 0.9rem;
}

.comment-action {
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 5px;
}

.comment-action:hover {
    color: var(--primary-color);
}

.load-more-container {
    text-align: center;
}

.load-more-btn {
    background: white;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 12px 30px;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
    font-weight: 500;
}

.load-more-btn:hover {
    background-color: var(--primary-color);
    color: white;
}

/* 页脚样式 */
footer {
    background-color: var(--dark-color);
    color: white;
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 20px;
    color: white;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    color: #b0b0b0;
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-color);
    transform: translateX(5px);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #444;
    color: #b0b0b0;
}

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

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(5deg);
    }
    50% {
        transform: translateY(-20px) rotate(5deg);
    }
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-content h2 {
        font-size: 2.5rem;
    }
    
    .manga-grid {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--primary-color);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0,0,0,0.05);
        padding: 20px 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-item {
        margin: 10px 0;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-section {
        flex-direction: column;
        text-align: center;
        padding: 60px 0;
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .manga-preview {
        margin-top: 40px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .manga-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 15px;
    }
    
    .category-list {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 15px;
    }
    
    .latest-item {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    /* 数据统计区域响应式 */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .charts-container {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .activity-stats {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .comments-container {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .comment-form-container {
        position: static;
    }
}

@media (max-width: 480px) {
    .hero-content h2 {
        font-size: 1.8rem;
    }
    
    .cta-button {
        padding: 12px 25px;
        font-size: 1rem;
    }
    
    .manga-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 10px;
    }
    
    .manga-cover {
        height: 180px;
    }
    
    .category-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    
    .category-item {
        padding: 20px 15px;
    }
}

/* 加载和交互优化 */
.manga-card,
.category-item,
.latest-item {
    will-change: transform;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #ff5252;
}

/* 选择文本样式 */
::selection {
    background-color: var(--primary-color);
    color: white;
}

/* 焦点样式 */
button:focus,
a:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}