/* ===== CSS变量定义 ===== */
:root {
    --primary-color: #c5aea1;
    --secondary-color-1: #b4a097;
    --secondary-color-2: #323038;
    --secondary-color-3: #483636;
    --secondary-color-4: #7d5034;
    
    --text-color: #323038;
    --text-light: #666;
    --bg-color: #f5f5f5;
    --white: #ffffff;
    
    --font-body: 'Noto Sans SC', sans-serif;
    --font-heading: 'Noto Serif SC', serif;
    
    --transition: all 0.3s ease;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 16px rgba(0, 0, 0, 0.15);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--text-color);
    background-color: var(--bg-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;
}

.section {
    padding: 80px 0;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 50px;
    color: var(--secondary-color-3);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

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

/* ===== 头部导航 ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    z-index: 1000;
    transition: var(--transition);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary-color-3);
    transition: var(--transition);
}

.nav-logo:hover {
    color: var(--primary-color);
    transform: scale(1.05);
}

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

.logo-text {
    font-family: var(--font-heading);
}

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

.nav-list {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    color: var(--text-color);
    transition: var(--transition);
    padding: 8px 12px;
    border-radius: 6px;
}

.nav-link:hover {
    color: var(--primary-color);
    background-color: rgba(197, 174, 161, 0.1);
}

.nav-close,
.nav-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-color);
    transition: var(--transition);
}

.nav-close:hover,
.nav-toggle:hover {
    color: var(--primary-color);
}

/* ===== 英雄区 ===== */
.hero {
    margin-top: 70px;
    padding: 60px 0;
    background: linear-gradient(135deg, rgba(197, 174, 161, 0.1) 0%, rgba(180, 160, 151, 0.1) 100%);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    color: var(--secondary-color-3);
    margin-bottom: 10px;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--secondary-color-4);
    font-weight: 300;
    margin-bottom: 15px;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 10px;
}

.hero-info {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin: 20px 0;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    color: var(--text-light);
}

.info-item i {
    color: var(--primary-color);
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 15px 0;
}

.tag {
    padding: 6px 14px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color-1));
    color: var(--white);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.hero-controls {
    margin: 15px 0;
}

.controls-text {
    font-size: 0.9rem;
    color: var(--text-light);
    font-style: italic;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary-color-4), var(--secondary-color-3));
    color: var(--white);
    box-shadow: var(--shadow);
    margin-top: 10px;
}

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

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

.cover-img {
    width: 100%;
    max-width: 500px;
    border-radius: 12px;
    box-shadow: var(--shadow-hover);
    transition: var(--transition);
}

.cover-img:hover {
    transform: scale(1.02);
}

/* ===== 新闻/动态区 ===== */
.news {
    background-color: var(--white);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.news-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(245, 245, 245, 0.9));
    padding: 25px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-left: 4px solid var(--primary-color);
}

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

.news-date {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.news-date i {
    color: var(--primary-color);
}

.news-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    color: var(--secondary-color-3);
    margin-bottom: 12px;
}

.news-content {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 15px;
}

.news-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    font-weight: 600;
    transition: var(--transition);
}

.news-link:hover {
    gap: 12px;
    color: var(--secondary-color-4);
}

/* ===== 媒体画廊 ===== */
.gallery {
    background: linear-gradient(135deg, rgba(197, 174, 161, 0.05) 0%, rgba(180, 160, 151, 0.05) 100%);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.gallery-item {
    overflow: hidden;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
}

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

.gallery-img {
    width: 100%;
    height: auto;
    transition: var(--transition);
}

.gallery-item:hover .gallery-img {
    transform: scale(1.05);
}

/* ===== 用户评价区 ===== */
.reviews {
    background-color: var(--white);
}

.reviews-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary-color-4);
    margin-bottom: 10px;
}

.stat-label {
    color: #ffc107;
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.stat-text {
    color: var(--text-light);
    font-size: 0.95rem;
}

.review-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
}

.review-tag {
    padding: 8px 16px;
    background-color: rgba(197, 174, 161, 0.2);
    color: var(--secondary-color-3);
    border-radius: 20px;
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.reviews-carousel {
    position: relative;
    max-width: 800px;
    margin: 0 auto 30px;
    min-height: 200px;
}

.review-card {
    display: none;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(245, 245, 245, 0.95));
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border-top: 4px solid var(--primary-color);
}

.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: 15px;
}

.review-author {
    font-weight: 600;
    color: var(--secondary-color-3);
    font-size: 1.1rem;
}

.review-rating {
    color: #ffc107;
}

.review-content {
    color: var(--text-light);
    line-height: 1.8;
    font-size: 1rem;
}

.carousel-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
}

.carousel-btn {
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.carousel-btn:hover {
    background-color: var(--secondary-color-4);
    transform: scale(1.1);
}

.carousel-dots {
    display: flex;
    gap: 10px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--secondary-color-1);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background-color: var(--secondary-color-4);
    transform: scale(1.2);
}

/* ===== 版本历史 ===== */
.versions {
    background: linear-gradient(135deg, rgba(197, 174, 161, 0.05) 0%, rgba(180, 160, 151, 0.05) 100%);
}

.versions-timeline {
    max-width: 900px;
    margin: 0 auto;
}

.version-item {
    background-color: var(--white);
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
}

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

.version-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 10px;
}

.version-title {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--secondary-color-3);
}

.version-date {
    color: var(--text-light);
    font-size: 0.95rem;
}

.version-meta {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.version-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-light);
    font-size: 0.9rem;
}

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

.version-changes {
    margin: 20px 0;
    padding-left: 20px;
}

.version-changes li {
    color: var(--text-light);
    margin-bottom: 8px;
    line-height: 1.7;
}

.version-download {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color-1));
    color: var(--white);
    border-radius: 6px;
    font-weight: 600;
    transition: var(--transition);
    margin-top: 10px;
}

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

/* ===== 游戏攻略 ===== */
.guide {
    background-color: var(--white);
}

.guide-filters {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    background-color: rgba(197, 174, 161, 0.2);
    color: var(--secondary-color-3);
    border: 2px solid transparent;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

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

.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.guide-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(245, 245, 245, 0.95));
    padding: 25px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-top: 4px solid var(--primary-color);
}

.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: 15px;
    gap: 10px;
}

.guide-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    color: var(--secondary-color-3);
    flex: 1;
}

.guide-difficulty {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
}

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

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

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

.guide-description {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 15px;
}

.guide-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.guide-tag {
    padding: 4px 10px;
    background-color: rgba(197, 174, 161, 0.2);
    color: var(--secondary-color-3);
    border-radius: 12px;
    font-size: 0.8rem;
}

/* ===== 游戏章节 ===== */
.chapters {
    background: linear-gradient(135deg, rgba(197, 174, 161, 0.05) 0%, rgba(180, 160, 151, 0.05) 100%);
}

.chapters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 25px;
}

.chapter-card {
    background-color: var(--white);
    padding: 25px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-left: 4px solid var(--primary-color);
}

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

.chapter-card.main {
    border-left-color: var(--secondary-color-4);
}

.chapter-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
    gap: 10px;
}

.chapter-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    color: var(--secondary-color-3);
    flex: 1;
}

.chapter-type {
    padding: 4px 12px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
}

.chapter-description {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 15px;
}

.chapter-info {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 15px;
}

.chapter-info span {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-light);
    font-size: 0.9rem;
}

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

.chapter-tone {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tone-tag {
    padding: 4px 10px;
    background-color: rgba(197, 174, 161, 0.2);
    color: var(--secondary-color-3);
    border-radius: 12px;
    font-size: 0.8rem;
}

/* ===== 常见问题 ===== */
.faq {
    background-color: var(--white);
}

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

.faq-item {
    background-color: rgba(255, 255, 255, 0.8);
    margin-bottom: 15px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
}

.faq-item:hover {
    box-shadow: var(--shadow-hover);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    cursor: pointer;
    transition: var(--transition);
}

.faq-question:hover {
    background-color: rgba(197, 174, 161, 0.1);
}

.faq-question h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    color: var(--secondary-color-3);
    flex: 1;
}

.faq-question i {
    color: var(--primary-color);
    transition: var(--transition);
    font-size: 1rem;
}

.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 25px;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 25px 20px;
}

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

/* ===== 底部信息 ===== */
.footer {
    background: linear-gradient(135deg, var(--secondary-color-3), var(--secondary-color-2));
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
    display: inline-block;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* ===== 返回顶部按钮 ===== */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color-1));
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: var(--shadow-hover);
    transition: var(--transition);
    z-index: 999;
}

.scroll-top.show {
    display: flex;
}

.scroll-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.2);
}

/* ===== 响应式设计 ===== */
@media screen and (max-width: 968px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 80%;
        height: calc(100vh - 70px);
        background-color: var(--white);
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
        transition: right 0.3s ease;
        overflow-y: auto;
    }
    
    .nav-menu.show {
        right: 0;
    }
    
    .nav-list {
        flex-direction: column;
        padding: 30px 20px;
        gap: 0;
    }
    
    .nav-item {
        width: 100%;
    }
    
    .nav-link {
        width: 100%;
        padding: 15px;
        border-bottom: 1px solid rgba(197, 174, 161, 0.1);
    }
    
    .nav-close,
    .nav-toggle {
        display: block;
    }
    
    .nav-close {
        position: absolute;
        top: 20px;
        right: 20px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-info {
        justify-content: center;
    }
    
    .hero-tags {
        justify-content: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .reviews-stats {
        gap: 30px;
    }
    
    .stat-value {
        font-size: 2rem;
    }
}

@media screen and (max-width: 576px) {
    .section {
        padding: 50px 0;
    }
    
    .hero {
        padding: 40px 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 1.8rem;
        flex-direction: column;
        gap: 10px;
    }
    
    .news-grid,
    .gallery-grid,
    .guide-grid,
    .chapters-grid {
        grid-template-columns: 1fr;
    }
    
    .reviews-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .scroll-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}