/* ============================================
   CSS变量 - 主题色管理
   ============================================ */
:root {
    --primary-color: #4d3645;
    --accent-color-1: #ddac9e;
    --accent-color-2: #a2a2a3;
    --accent-color-3: #637cb5;
    --text-color: #333333;
    --text-light: #666666;
    --bg-color: #ffffff;
    --bg-light: #f8f8f8;
    --border-color: #e0e0e0;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* ============================================
   头部导航
   ============================================ */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #5d4654 100%);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--bg-color);
    font-size: 1.5rem;
    font-weight: 700;
    transition: var(--transition);
}

.logo:hover {
    transform: scale(1.05);
    opacity: 0.9;
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
}

.logo-text {
    font-family: 'Noto Serif SC', serif;
}

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

.nav-menu a {
    color: var(--bg-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 5px;
}

.nav-menu a:hover {
    color: var(--accent-color-1);
    transform: translateY(-2px);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--bg-color);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px;
}

/* ============================================
   英雄区
   ============================================ */
.hero {
    background: linear-gradient(135deg, var(--bg-light) 0%, #ffffff 100%);
    padding: 3rem 0;
    border-bottom: 1px solid var(--border-color);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
    align-items: center;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.hero-image img:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-hover);
}

.hero-title {
    font-family: 'Noto Serif SC', serif;
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--accent-color-3);
    margin-bottom: 1rem;
    font-weight: 500;
}

.hero-description {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.feature-tag {
    background: linear-gradient(135deg, var(--accent-color-1) 0%, #e8c4b8 100%);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding: 1rem;
    background: var(--bg-light);
    border-radius: 8px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-light);
    font-size: 0.9rem;
}

.meta-item i {
    color: var(--accent-color-3);
}

.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, var(--accent-color-3) 0%, #7a94d4 100%);
    color: white;
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
    background: linear-gradient(135deg, #7a94d4 0%, var(--accent-color-3) 100%);
}

.btn-download:active {
    transform: translateY(0);
}

/* ============================================
   通用区块标题
   ============================================ */
.section-title {
    font-family: 'Noto Serif SC', serif;
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.section-title i {
    color: var(--accent-color-3);
}

/* ============================================
   新闻/动态区
   ============================================ */
.news-section {
    padding: 4rem 0;
    background: var(--bg-color);
}

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

.news-card {
    background: var(--bg-light);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    gap: 1.5rem;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.news-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 60px;
    background: linear-gradient(135deg, var(--primary-color) 0%, #5d4654 100%);
    color: white;
    border-radius: 8px;
    padding: 0.5rem;
}

.date-day {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
}

.date-month {
    font-size: 0.9rem;
    opacity: 0.9;
}

.news-content {
    flex: 1;
}

.news-title {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.news-excerpt {
    color: var(--text-light);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.news-link {
    color: var(--accent-color-3);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: var(--transition);
}

.news-link:hover {
    color: var(--primary-color);
    gap: 10px;
}

/* ============================================
   媒体画廊
   ============================================ */
.gallery-section {
    padding: 4rem 0;
    background: var(--bg-light);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.gallery-item {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    aspect-ratio: 16/9;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(77, 54, 69, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-view {
    background: var(--accent-color-1);
    border: none;
    color: var(--primary-color);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
}

.gallery-view:hover {
    transform: scale(1.1);
    background: var(--bg-color);
}

/* ============================================
   图片查看器模态框
   ============================================ */
.image-modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    animation: fadeIn 0.3s;
}

.image-modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-image {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
    border-radius: 8px;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--accent-color-1);
}

.modal-prev,
.modal-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: none;
    padding: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
    border-radius: 8px;
    transition: var(--transition);
}

.modal-prev {
    left: 20px;
}

.modal-next {
    right: 20px;
}

.modal-prev:hover,
.modal-next:hover {
    background: rgba(255, 255, 255, 0.4);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ============================================
   用户评价区
   ============================================ */
.reviews-section {
    padding: 4rem 0;
    background: var(--bg-color);
}

.reviews-summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
    padding: 2rem;
    background: linear-gradient(135deg, var(--bg-light) 0%, #ffffff 100%);
    border-radius: 12px;
    flex-wrap: wrap;
    gap: 2rem;
}

.rating-overview {
    text-align: center;
}

.rating-score {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.rating-stars {
    color: #ffc107;
    font-size: 1.5rem;
    margin: 0.5rem 0;
}

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

.rating-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
}

.tag {
    background: var(--accent-color-1);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.reviews-carousel {
    position: relative;
    overflow: hidden;
}

.reviews-track {
    display: flex;
    gap: 2rem;
    transition: transform 0.5s ease;
}

.review-card {
    min-width: calc(50% - 1rem);
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.reviewer-name {
    font-weight: 600;
    color: var(--primary-color);
}

.review-rating {
    color: #ffc107;
}

.review-text {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.review-date {
    color: var(--accent-color-2);
    font-size: 0.9rem;
}

.carousel-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.carousel-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-btn:hover {
    background: var(--accent-color-3);
    transform: scale(1.1);
}

/* ============================================
   版本历史
   ============================================ */
.versions-section {
    padding: 4rem 0;
    background: var(--bg-light);
}

.versions-timeline {
    position: relative;
    padding-left: 2rem;
}

.versions-timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--accent-color-3) 0%, var(--accent-color-1) 100%);
}

.version-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 3rem;
}

.version-item::before {
    content: '';
    position: absolute;
    left: -1.5rem;
    top: 0.5rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--accent-color-3);
    border: 3px solid var(--bg-light);
}

.version-date {
    position: absolute;
    left: -2rem;
    top: 0;
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    white-space: nowrap;
}

.version-content {
    background: var(--bg-color);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.version-content:hover {
    box-shadow: var(--shadow-hover);
    transform: translateX(5px);
}

.version-title {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.version-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-light);
    font-size: 0.9rem;
}

.version-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.version-meta i {
    color: var(--accent-color-3);
}

.version-changes {
    list-style: none;
    margin: 1rem 0;
    padding-left: 0;
}

.version-changes li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-light);
}

.version-changes li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent-color-3);
    font-weight: bold;
}

.version-download {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent-color-3);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    margin-top: 1rem;
}

.version-download:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

/* ============================================
   游戏攻略
   ============================================ */
.guides-section {
    padding: 4rem 0;
    background: var(--bg-color);
}

.guide-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
}

.filter-btn {
    background: var(--bg-light);
    border: 2px solid var(--border-color);
    color: var(--text-color);
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

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

.guides-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.guide-card {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.guide-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.guide-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.guide-title {
    font-size: 1.2rem;
    color: var(--primary-color);
    font-weight: 600;
    flex: 1;
}

.guide-difficulty {
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
}

.guide-difficulty.easy {
    background: #d4edda;
    color: #155724;
}

.guide-difficulty.medium {
    background: #fff3cd;
    color: #856404;
}

.guide-difficulty.hard {
    background: #f8d7da;
    color: #721c24;
}

.guide-description {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.guide-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.guide-card.hidden {
    display: none;
}

/* ============================================
   游戏章节
   ============================================ */
.chapters-section {
    padding: 4rem 0;
    background: var(--bg-light);
}

.chapters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.chapter-card {
    background: var(--bg-color);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-left: 4px solid transparent;
}

.chapter-card.main {
    border-left-color: var(--accent-color-3);
}

.chapter-card.character {
    border-left-color: var(--accent-color-1);
}

.chapter-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.chapter-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.chapter-title {
    font-size: 1.2rem;
    color: var(--primary-color);
    font-weight: 600;
    flex: 1;
}

.chapter-type {
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
    background: var(--bg-light);
    color: var(--text-color);
}

.chapter-description {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.chapter-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    color: var(--text-light);
    font-size: 0.9rem;
}

.chapter-info > div {
    display: flex;
    align-items: center;
    gap: 8px;
}

.chapter-info i {
    color: var(--accent-color-3);
}

/* ============================================
   常见问题
   ============================================ */
.faq-section {
    padding: 4rem 0;
    background: var(--bg-color);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-light);
    border-radius: 12px;
    margin-bottom: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: 1.5rem;
    text-align: left;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-question:hover {
    background: rgba(77, 54, 69, 0.05);
}

.faq-question i {
    transition: var(--transition);
    color: var(--accent-color-3);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 1.5rem;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 1.5rem 1.5rem 1.5rem;
}

.faq-answer p {
    color: var(--text-light);
    line-height: 1.8;
}

/* ============================================
   返回顶部按钮
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--primary-color);
    color: white;
    width: 50px;
    height: 50px;
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    justify-content: center;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--accent-color-3);
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

/* ============================================
   底部信息
   ============================================ */
.footer {
    background: linear-gradient(135deg, var(--primary-color) 0%, #3d2835 100%);
    color: var(--bg-color);
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-title {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--accent-color-1);
}

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

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
}

.footer-links a:hover {
    color: var(--accent-color-1);
    transform: translateX(5px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* ============================================
   响应式设计
   ============================================ */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--primary-color);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow);
        padding: 2rem 0;
        gap: 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        width: 100%;
    }
    
    .nav-menu a {
        padding: 1rem;
        width: 100%;
        justify-content: center;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-meta {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .reviews-summary {
        flex-direction: column;
        text-align: center;
    }
    
    .review-card {
        min-width: 100%;
    }
    
    .versions-timeline {
        padding-left: 1.5rem;
    }
    
    .version-item {
        padding-left: 2rem;
    }
    
    .version-date {
        position: static;
        display: inline-block;
        margin-bottom: 1rem;
    }
    
    .guides-grid {
        grid-template-columns: 1fr;
    }
    
    .chapters-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.5rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .feature-tag {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }
    
    .btn-download {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
}