/* ========================================
   CSS变量 - 主题颜色管理
   ======================================== */
:root {
    --color-primary: #87b6ca;
    --color-secondary: #b3799c;
    --color-accent: #b53860;
    --color-light: #d8d1d0;
    
    --color-dark: #1a1a2e;
    --color-dark-alt: #16213e;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-white: #ffffff;
    --color-bg: #f8f9fa;
    
    --gradient-primary: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    --gradient-accent: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
    --gradient-hero: linear-gradient(135deg, rgba(135, 182, 202, 0.9), rgba(179, 121, 156, 0.9));
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
}

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

html {
    scroll-behavior: smooth;
}

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

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

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

ul {
    list-style: none;
}

button {
    font-family: inherit;
    border: none;
    background: none;
    cursor: pointer;
}

/* ========================================
   通用容器和工具类
   ======================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--color-dark);
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title i {
    margin-right: var(--spacing-xs);
    color: var(--color-primary);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition-normal);
    cursor: pointer;
    border: none;
    text-align: center;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

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

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

.btn-secondary {
    background: var(--color-light);
    color: var(--color-dark);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--color-secondary);
    color: var(--color-white);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
}

/* ========================================
   返回顶部按钮
   ======================================== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-md);
    z-index: 999;
}

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

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* ========================================
   头部导航
   ======================================== */
.header {
    position: sticky;
    top: 0;
    background: var(--color-white);
    box-shadow: var(--shadow-sm);
    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: var(--spacing-xs);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-dark);
}

.logo img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 5px;
}

.nav-toggle span {
    display: block;
    width: 28px;
    height: 3px;
    background: var(--color-dark);
    border-radius: 2px;
    transition: var(--transition-fast);
}

.nav-menu {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    flex-wrap: nowrap;
}

.nav-menu a {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 0.75rem;
    color: var(--color-text);
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    white-space: nowrap;
}

.nav-menu a i {
    font-size: 0.875rem;
}

.nav-menu a:hover {
    background: var(--gradient-primary);
    color: var(--color-white);
    transform: translateY(-2px);
}

/* ========================================
   英雄区
   ======================================== */
.hero {
    position: relative;
    min-height: 650px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg) 0;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-hero);
    opacity: 0.95;
    z-index: 1;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
}

.hero .container {
    position: relative;
    z-index: 2;
}

.hero-content {
    text-align: center;
    color: var(--color-white);
}

.hero-title {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 0.6s ease;
}

.hero-subtitle {
    font-size: 1.75rem;
    font-weight: 400;
    margin-bottom: var(--spacing-md);
    opacity: 0.95;
    animation: fadeInUp 0.8s ease;
}

.hero-description {
    font-size: 1.125rem;
    max-width: 700px;
    margin: 0 auto var(--spacing-md);
    line-height: 1.8;
    opacity: 0.9;
    animation: fadeInUp 1s ease;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 1.2s ease;
}

.feature-tag {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-lg);
    font-size: 0.9375rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-normal);
}

.feature-tag:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.hero-info {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 1.4s ease;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.15);
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
}

.info-item i {
    font-size: 1.125rem;
}

.hero .btn-large {
    animation: fadeInUp 1.6s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   新闻动态区
   ======================================== */
.news {
    padding: var(--spacing-xl) 0;
    background: var(--color-white);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.news-card {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.news-date {
    flex-shrink: 0;
    width: 70px;
    text-align: center;
    padding: var(--spacing-sm);
    background: var(--gradient-primary);
    color: var(--color-white);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.date-day {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
}

.date-month {
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.news-content {
    flex: 1;
}

.news-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-dark);
}

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

.news-link {
    color: var(--color-primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    transition: var(--transition-fast);
}

.news-link:hover {
    color: var(--color-accent);
    gap: 0.625rem;
}

/* ========================================
   媒体画廊
   ======================================== */
.gallery {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-md);
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    cursor: pointer;
    aspect-ratio: 16/9;
}

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

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(135, 182, 202, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
}

.gallery-overlay i {
    font-size: 3rem;
    color: var(--color-white);
}

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

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

/* ========================================
   用户评价区
   ======================================== */
.reviews {
    padding: var(--spacing-xl) 0;
    background: var(--color-white);
}

.review-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    min-width: 180px;
    box-shadow: var(--shadow-sm);
}

.stat-value {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.stat-stars {
    color: #ffc107;
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    color: var(--color-text-light);
    font-size: 0.9375rem;
}

.review-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.review-tag {
    background: var(--color-light);
    color: var(--color-dark);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-lg);
    font-size: 0.9375rem;
    transition: var(--transition-fast);
}

.review-tag:hover {
    background: var(--gradient-primary);
    color: var(--color-white);
    transform: translateY(-2px);
}

.review-carousel {
    position: relative;
    max-width: 800px;
    margin: 0 auto var(--spacing-md);
    min-height: 300px;
}

.review-card {
    background: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    position: absolute;
    width: 100%;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.review-card.active {
    opacity: 1;
    visibility: visible;
    position: relative;
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.reviewer-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.reviewer-avatar {
    font-size: 3rem;
    color: var(--color-primary);
}

.reviewer-name {
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 0.25rem;
}

.review-stars {
    color: #ffc107;
    font-size: 0.875rem;
}

.review-date {
    color: var(--color-text-light);
    font-size: 0.875rem;
}

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

.carousel-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.carousel-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-normal);
}

.carousel-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

.carousel-dots {
    display: flex;
    gap: var(--spacing-xs);
}

.carousel-dots::before,
.carousel-dots::after {
    content: '';
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-light);
    transition: var(--transition-fast);
}

.carousel-dots::before {
    background: var(--color-primary);
}

/* ========================================
   版本历史
   ======================================== */
.versions {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg);
}

.version-timeline {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.version-timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--gradient-primary);
}

.version-item {
    position: relative;
    padding-left: 80px;
    margin-bottom: var(--spacing-lg);
}

.version-marker {
    position: absolute;
    left: 20px;
    top: 10px;
    width: 23px;
    height: 23px;
    border-radius: 50%;
    background: var(--color-white);
    border: 4px solid var(--color-primary);
    z-index: 2;
}

.version-content {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.version-content:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-lg);
}

.version-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.version-number {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-dark);
}

.version-badge {
    padding: 0.375rem 0.875rem;
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 600;
}

.version-badge.latest {
    background: var(--gradient-primary);
    color: var(--color-white);
}

.version-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-light);
    font-size: 0.9375rem;
}

.version-meta span {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.version-changes {
    margin-bottom: var(--spacing-md);
}

.version-changes h4 {
    color: var(--color-dark);
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    font-size: 1rem;
}

.version-changes ul {
    padding-left: var(--spacing-md);
}

.version-changes li {
    list-style: disc;
    color: var(--color-text);
    margin-bottom: 0.375rem;
    line-height: 1.6;
}

/* ========================================
   游戏攻略
   ======================================== */
.guides {
    padding: var(--spacing-xl) 0;
    background: var(--color-white);
}

.guide-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-lg);
    background: var(--color-bg);
    color: var(--color-text);
    font-weight: 600;
    transition: var(--transition-normal);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--gradient-primary);
    color: var(--color-white);
    transform: translateY(-2px);
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.guide-card {
    background: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    display: flex;
    flex-direction: column;
}

.guide-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.guide-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    background: var(--gradient-primary);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
}

.guide-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: var(--spacing-xs);
}

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

.guide-meta {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding-top: var(--spacing-sm);
    border-top: 2px solid var(--color-light);
}

.guide-difficulty,
.guide-time {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.guide-difficulty.high {
    color: var(--color-accent);
}

.guide-difficulty.medium {
    color: var(--color-secondary);
}

.guide-difficulty.low {
    color: var(--color-primary);
}

/* ========================================
   游戏角色
   ======================================== */
.characters {
    padding: var(--spacing-xl) 0;
    background: var(--color-bg);
}

.character-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.character-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.character-card {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
}

.character-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.character-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--color-light);
}

.character-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-dark);
}

.character-badge {
    padding: 0.375rem 0.875rem;
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-white);
}

.character-badge.main {
    background: var(--gradient-primary);
}

.character-badge.special {
    background: var(--gradient-accent);
}

.character-info {
    margin-bottom: var(--spacing-sm);
}

.character-info p {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xs);
    margin-bottom: 0.5rem;
    color: var(--color-text);
    line-height: 1.6;
}

.character-info i {
    color: var(--color-primary);
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.character-desc {
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--color-bg);
    border-radius: var(--radius-md);
}

.character-requirements {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.requirement-tag {
    padding: 0.375rem 0.875rem;
    background: var(--color-light);
    color: var(--color-dark);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.requirement-tag i {
    color: var(--color-secondary);
}

/* ========================================
   游戏章节
   ======================================== */
.chapters {
    padding: var(--spacing-xl) 0;
    background: var(--color-white);
}

.chapter-list {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.chapter-item {
    background: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    display: flex;
    gap: var(--spacing-md);
    transition: var(--transition-normal);
}

.chapter-item:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

.chapter-number {
    flex-shrink: 0;
    width: 70px;
    height: 70px;
    border-radius: var(--radius-md);
    background: var(--gradient-primary);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
}

.chapter-content {
    flex: 1;
}

.chapter-title {
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.chapter-type {
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-lg);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-white);
}

.chapter-type.main {
    background: var(--color-primary);
}

.chapter-type.character {
    background: var(--color-secondary);
}

.chapter-type.special {
    background: var(--color-accent);
}

.chapter-type.ending {
    background: linear-gradient(135deg, #ffd700, #ffed4e);
    color: var(--color-dark);
}

.chapter-summary {
    color: var(--color-text);
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
}

.chapter-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    color: var(--color-text-light);
    font-size: 0.875rem;
}

.chapter-meta span {
    display: flex;
    align-items: center;
    gap: 0.375rem;
}

.chapter-importance {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 70px;
    font-size: 1.125rem;
    color: var(--color-text-light);
}

.chapter-importance.high {
    color: var(--color-accent);
}

.chapter-importance.medium {
    color: var(--color-secondary);
}

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

.faq-list {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.faq-item {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: var(--transition-normal);
}

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

.faq-question {
    width: 100%;
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    text-align: left;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-dark);
    cursor: pointer;
    transition: var(--transition-fast);
}

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

.faq-question span {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.faq-question i:last-child {
    transition: var(--transition-fast);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.faq-item.active .faq-answer {
    max-height: 1000px;
}

.faq-answer p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--color-text);
    line-height: 1.8;
}

/* ========================================
   底部
   ======================================== */
.footer {
    background: var(--color-dark);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

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

.footer-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-primary);
}

.footer-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.footer-download {
    margin-top: var(--spacing-sm);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-primary);
    transform: translateX(4px);
}

.footer-partners {
    padding: var(--spacing-md) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: var(--spacing-md);
}

.footer-partners .footer-title {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.partner-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.partner-links a {
    color: rgba(255, 255, 255, 0.7);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.05);
    transition: var(--transition-fast);
}

.partner-links a:hover {
    background: rgba(135, 182, 202, 0.2);
    color: var(--color-white);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0.5rem;
}

.footer-disclaimer {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

/* ========================================
   响应式设计 - 平板
   ======================================== */
@media (max-width: 992px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.5rem;
    }
    
    .hero-info {
        gap: var(--spacing-sm);
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .guide-grid,
    .character-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    }
}

/* ========================================
   响应式设计 - 移动端
   ======================================== */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 3rem;
        --spacing-lg: 2rem;
        --spacing-md: 1.5rem;
    }
    
    /* 导航菜单 */
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        width: 100%;
        height: calc(100vh - 72px);
        background: var(--color-white);
        flex-direction: column;
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
        transform: translateX(-100%);
        transition: var(--transition-normal);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    .nav-menu a {
        width: 100%;
        padding: var(--spacing-sm);
    }
    
    /* 英雄区 */
    .hero {
        min-height: 500px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-features {
        gap: 0.5rem;
    }
    
    .feature-tag {
        font-size: 0.875rem;
        padding: 0.5rem 1rem;
    }
    
    .hero-info {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .info-item {
        font-size: 0.875rem;
    }
    
    /* 新闻卡片 */
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .news-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .news-date {
        width: 100%;
        max-width: 100px;
    }
    
    /* 画廊 */
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    /* 评价区 */
    .review-stats {
        gap: var(--spacing-sm);
    }
    
    .stat-item {
        min-width: 140px;
    }
    
    .stat-value {
        font-size: 2.5rem;
    }
    
    .review-carousel {
        min-height: 350px;
    }
    
    /* 版本时间线 */
    .version-timeline::before {
        left: 15px;
    }
    
    .version-item {
        padding-left: 60px;
    }
    
    .version-marker {
        left: 5px;
    }
    
    .version-number {
        font-size: 1.5rem;
    }
    
    /* 攻略和角色 */
    .guide-grid,
    .character-grid {
        grid-template-columns: 1fr;
    }
    
    /* 章节 */
    .chapter-item {
        flex-direction: column;
    }
    
    .chapter-number {
        width: 100%;
        height: 60px;
        font-size: 1.75rem;
    }
    
    .chapter-importance {
        width: 100%;
        justify-content: flex-start;
        margin-top: var(--spacing-xs);
    }
    
    /* 底部导航按钮 */
    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
    }
    
    /* 底部 */
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .partner-links {
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .btn-large {
        padding: 1rem 2rem;
        font-size: 1rem;
    }
}

/* ========================================
   打印样式
   ======================================== */
@media print {
    .header,
    .back-to-top,
    .carousel-controls,
    .filter-btn,
    .btn {
        display: none;
    }
    
    body {
        background: white;
    }
    
    .section-title {
        color: black;
    }
}