/* ============================================
   CSS变量定义 - 主题色管理
   ============================================ */
:root {
    --primary-color: #1f1d11;
    --secondary-color: #232114;
    --light-color: #fafaf6;
    --gray-color: #8c8c8c;
    --accent-color: #d4af37;
    --text-color: #fafaf6;
    --text-dark: #1f1d11;
    --transition: all 0.3s ease;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 8px 16px rgba(0, 0, 0, 0.4);
}

/* ============================================
   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;
    background-color: var(--primary-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

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

/* ============================================
   头部导航栏
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(31, 29, 17, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow);
}

.navbar {
    padding: 1rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-color);
}

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

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-menu li a {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.95rem;
    padding: 0.5rem 0;
    position: relative;
}

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

.nav-menu li a:hover::after,
.nav-menu li a:focus::after {
    width: 100%;
}

.nav-menu li a:hover {
    color: var(--accent-color);
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
}

/* ============================================
   英雄区（Hero Section）
   ============================================ */
.hero {
    margin-top: 80px;
    padding: 3rem 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

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

.hero-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: var(--shadow-hover);
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--accent-color);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--gray-color);
    margin-bottom: 1rem;
}

.hero-description {
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 0.5rem 1rem;
    background-color: var(--secondary-color);
    border-radius: 20px;
    color: var(--text-color);
}

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

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.tag {
    padding: 0.4rem 1rem;
    background-color: rgba(212, 175, 55, 0.2);
    border: 1px solid var(--accent-color);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--accent-color);
}

.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, var(--accent-color) 0%, #b8941f 100%);
    color: var(--text-dark);
    font-weight: 700;
    font-size: 1.1rem;
    border-radius: 50px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.btn-download:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.btn-download:active {
    transform: translateY(-1px);
}

/* ============================================
   通用区块标题
   ============================================ */
.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    text-align: center;
    color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.section-title i {
    font-size: 1.5rem;
}

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

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

.news-card {
    background-color: var(--primary-color);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid rgba(212, 175, 55, 0.1);
}

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

.news-date {
    color: var(--accent-color);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.news-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-color);
}

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

.news-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--accent-color);
    font-weight: 500;
}

.news-link:hover {
    gap: 10px;
}

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

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

.gallery-item {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
}

.gallery-item:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-hover);
}

.gallery-item img {
    width: 100%;
    height: auto;
    display: block;
}

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

.reviews-summary {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 3rem;
    align-items: center;
}

.rating-box {
    text-align: center;
    padding: 2rem;
    background-color: var(--primary-color);
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.rating-score {
    font-size: 3rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.rating-stars {
    color: var(--accent-color);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

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

.tags-summary h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag-small {
    padding: 0.4rem 0.8rem;
    background-color: var(--primary-color);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text-color);
    border: 1px solid rgba(212, 175, 55, 0.3);
}

.reviews-carousel {
    position: relative;
    min-height: 200px;
    margin-bottom: 2rem;
}

.review-card {
    display: none;
    background-color: var(--primary-color);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(212, 175, 55, 0.1);
}

.review-card.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.review-author {
    font-weight: 600;
    color: var(--accent-color);
}

.review-rating {
    color: var(--accent-color);
}

.review-content {
    color: var(--text-color);
    line-height: 1.8;
}

.carousel-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
}

.carousel-btn {
    background-color: var(--primary-color);
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.carousel-btn:hover {
    background-color: var(--accent-color);
    color: var(--text-dark);
}

.carousel-dots {
    display: flex;
    gap: 0.5rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--gray-color);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background-color: var(--accent-color);
    transform: scale(1.2);
}

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

.version-timeline {
    max-width: 800px;
    margin: 0 auto;
}

.version-item {
    background-color: var(--secondary-color);
    padding: 2rem;
    border-radius: 10px;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--accent-color);
}

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

.version-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
}

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

.version-content ul {
    list-style: disc;
    margin-left: 1.5rem;
    margin-top: 1rem;
    color: var(--text-color);
    line-height: 1.8;
}

.version-content ul li {
    margin-bottom: 0.5rem;
}

.version-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(212, 175, 55, 0.2);
    font-size: 0.9rem;
    color: var(--gray-color);
}

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

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

.version-download {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 1rem;
    padding: 0.7rem 1.5rem;
    background-color: var(--accent-color);
    color: var(--text-dark);
    border-radius: 25px;
    font-weight: 600;
    transition: var(--transition);
}

.version-download:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

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

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

.filter-btn {
    padding: 0.7rem 1.5rem;
    background-color: var(--primary-color);
    border: 1px solid rgba(212, 175, 55, 0.3);
    color: var(--text-color);
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
}

.filter-btn:hover,
.filter-btn.active {
    background-color: var(--accent-color);
    color: var(--text-dark);
    border-color: var(--accent-color);
}

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

.guide-card {
    background-color: var(--primary-color);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid rgba(212, 175, 55, 0.1);
}

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

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

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

.guide-difficulty {
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
}

.guide-difficulty.easy {
    background-color: rgba(76, 175, 80, 0.2);
    color: #4caf50;
}

.guide-difficulty.medium {
    background-color: rgba(255, 193, 7, 0.2);
    color: #ffc107;
}

.guide-difficulty.hard {
    background-color: rgba(244, 67, 54, 0.2);
    color: #f44336;
}

.guide-description {
    color: var(--gray-color);
    line-height: 1.8;
    margin-bottom: 1rem;
}

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

.guide-tag {
    padding: 0.3rem 0.8rem;
    background-color: var(--secondary-color);
    border-radius: 15px;
    font-size: 0.8rem;
    color: var(--text-color);
}

/* ============================================
   游戏章节介绍
   ============================================ */
.chapters {
    padding: 4rem 0;
    background-color: var(--primary-color);
}

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

.chapter-card {
    background-color: var(--secondary-color);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-top: 4px solid transparent;
}

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

.chapter-card.character {
    border-top-color: #9c27b0;
}

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

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

.chapter-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-color);
}

.chapter-type {
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    background-color: var(--primary-color);
    color: var(--accent-color);
}

.chapter-card.character .chapter-type {
    color: #9c27b0;
}

.chapter-description {
    color: var(--gray-color);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.chapter-info {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: var(--text-color);
}

.chapter-info span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.chapter-info i {
    color: var(--accent-color);
    width: 16px;
}

.chapter-tone {
    padding: 0.5rem 1rem;
    background-color: var(--primary-color);
    border-radius: 8px;
    font-size: 0.85rem;
    color: var(--gray-color);
    font-style: italic;
}

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

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

.faq-item {
    background-color: var(--primary-color);
    margin-bottom: 1rem;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid rgba(212, 175, 55, 0.1);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
}

.faq-question:hover {
    background-color: var(--secondary-color);
}

.faq-question h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-color);
}

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

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

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

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 1.5rem 1.5rem;
    color: var(--gray-color);
    line-height: 1.8;
}

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

.back-to-top.show {
    display: flex;
}

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

/* ============================================
   底部信息
   ============================================ */
.footer {
    background-color: var(--primary-color);
    padding: 3rem 0 1rem;
    border-top: 1px solid rgba(212, 175, 55, 0.2);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: var(--gray-color);
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(212, 175, 55, 0.1);
    color: var(--gray-color);
    font-size: 0.9rem;
}

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

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--primary-color);
        flex-direction: column;
        padding: 2rem;
        transition: var(--transition);
        box-shadow: var(--shadow);
    }

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

    .hero-content {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-meta {
        font-size: 0.8rem;
    }

    .meta-item {
        padding: 0.4rem 0.8rem;
    }

    .reviews-summary {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .news-grid,
    .gallery-grid,
    .guide-grid,
    .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 {
        padding: 2rem 0;
    }

    .hero-title {
        font-size: 1.5rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .btn-download {
        padding: 0.8rem 2rem;
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.3rem;
    }

    .news-card,
    .guide-card,
    .chapter-card {
        padding: 1.5rem;
    }
}