/* ================================
   CSS变量定义
   ================================ */
:root {
    --primary-color: #bcbcc8;
    --secondary-color-1: #2a2f35;
    --secondary-color-2: #503d40;
    --secondary-color-3: #6a654f;
    --text-dark: #1a1a1a;
    --text-light: #ffffff;
    --text-gray: #666666;
    --bg-light: #f8f9fa;
    --bg-dark: #1a1a1a;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(0, 0, 0, 0.2);
    --transition: all 0.3s ease;
    --border-radius: 12px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
}

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

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

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

ul {
    list-style: none;
}

/* ================================
   返回顶部按钮
   ================================ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color-3));
    color: var(--text-light);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1000;
    box-shadow: 0 4px 15px var(--shadow);
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px var(--shadow-hover);
}

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

.back-to-top i {
    font-size: 20px;
}

/* ================================
   头部导航
   ================================ */
.header {
    background: linear-gradient(135deg, var(--secondary-color-1), var(--secondary-color-2));
    box-shadow: 0 2px 10px var(--shadow);
    position: sticky;
    top: 0;
    z-index: 999;
}

.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: 1.3rem;
    font-weight: 700;
    color: var(--text-light);
    flex-shrink: 0;
}

.logo img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.logo:hover {
    opacity: 0.9;
}

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

.nav-menu a {
    color: var(--text-light);
    font-weight: 500;
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    transition: var(--transition);
    white-space: nowrap;
    font-size: 0.9rem;
}

.nav-menu a:hover {
    background: rgba(255, 255, 255, 0.1);
}

.nav-menu i {
    margin-right: 4px;
    font-size: 0.85rem;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    cursor: pointer;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-light);
    border-radius: 3px;
    transition: var(--transition);
}

/* ================================
   英雄区
   ================================ */
.hero {
    background: linear-gradient(135deg, var(--secondary-color-2), var(--secondary-color-3));
    color: var(--text-light);
    padding: 4rem 0;
    text-align: center;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.8rem;
    font-weight: 300;
    margin-bottom: 1rem;
    opacity: 0.9;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.hero-info {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.info-badge {
    background: rgba(255, 255, 255, 0.15);
    padding: 0.5rem 1.2rem;
    border-radius: 25px;
    font-size: 0.95rem;
    backdrop-filter: blur(10px);
}

.info-badge i {
    margin-right: 6px;
}

.hero-tags {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-bottom: 2.5rem;
}

.tag {
    background: linear-gradient(135deg, var(--primary-color), #a8a8b8);
    color: var(--text-dark);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, #ff6b6b, #ee5a6f);
    color: var(--text-light);
    padding: 1rem 3rem;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.4);
    transition: var(--transition);
}

.btn-download:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(255, 107, 107, 0.6);
}

/* ================================
   通用区块样式
   ================================ */
section {
    padding: 4rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: var(--secondary-color-1);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color-3));
    margin: 1rem auto 0;
    border-radius: 2px;
}

/* ================================
   游戏介绍区
   ================================ */
.intro {
    background: var(--text-light);
}

.intro-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: var(--text-gray);
}

.game-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px var(--shadow);
    border-color: var(--primary-color);
}

.feature-card i {
    font-size: 3rem;
    color: var(--secondary-color-3);
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    color: var(--secondary-color-1);
}

.feature-card p {
    font-size: 1rem;
    color: var(--text-gray);
}

/* ================================
   最新动态区
   ================================ */
.news {
    background: var(--bg-light);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.news-card {
    background: var(--text-light);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 4px 15px var(--shadow);
    transition: var(--transition);
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px var(--shadow-hover);
}

.news-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color-3));
    color: var(--text-light);
    padding: 1rem;
    border-radius: var(--border-radius);
    min-width: 80px;
}

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

.date-month {
    font-size: 0.9rem;
    margin-top: 0.3rem;
}

.news-content {
    flex: 1;
}

.news-content h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    color: var(--secondary-color-1);
}

.news-content p {
    color: var(--text-gray);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.news-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--secondary-color-3);
    font-weight: 600;
    transition: var(--transition);
}

.news-link:hover {
    color: var(--secondary-color-2);
    gap: 10px;
}

/* ================================
   游戏截图区
   ================================ */
.gallery {
    background: var(--text-light);
}

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

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

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

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

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

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

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

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

.review-stats {
    background: var(--text-light);
    padding: 2rem;
    border-radius: var(--border-radius);
    margin-bottom: 2rem;
    box-shadow: 0 4px 15px var(--shadow);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 2rem;
}

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

.rating-score {
    font-size: 4rem;
    font-weight: 700;
    color: var(--secondary-color-3);
    line-height: 1;
}

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

.rating-count {
    color: var(--text-gray);
    font-size: 0.95rem;
}

.review-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    flex: 1;
    justify-content: center;
}

.review-tag {
    background: linear-gradient(135deg, var(--primary-color), #a8a8b8);
    color: var(--text-dark);
    padding: 0.6rem 1.2rem;
    border-radius: 25px;
    font-size: 0.95rem;
    font-weight: 500;
}

.reviews-carousel {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.review-card {
    background: var(--text-light);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 15px var(--shadow);
    transition: var(--transition);
}

.review-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px var(--shadow-hover);
}

.review-header {
    margin-bottom: 1.5rem;
}

.reviewer-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.reviewer-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color-3));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 1.5rem;
}

.reviewer-info h4 {
    font-size: 1.1rem;
    color: var(--secondary-color-1);
    margin-bottom: 0.3rem;
}

.review-stars {
    font-size: 1rem;
    color: #ffc107;
}

.review-text {
    color: var(--text-gray);
    line-height: 1.7;
}

/* ================================
   章节介绍区
   ================================ */
.chapters {
    background: var(--text-light);
}

.chapters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.chapter-card {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 15px var(--shadow);
    transition: var(--transition);
    position: relative;
    border-left: 4px solid var(--secondary-color-3);
}

.chapter-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px var(--shadow-hover);
}

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

.character-chapter {
    border-left-color: var(--secondary-color-2);
}

.chapter-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--secondary-color-3);
    color: var(--text-light);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.chapter-badge.special {
    background: var(--secondary-color-2);
}

.chapter-card h3 {
    font-size: 1.4rem;
    color: var(--secondary-color-1);
    margin-bottom: 1rem;
}

.chapter-card h3 i {
    margin-right: 8px;
    color: var(--secondary-color-3);
}

.chapter-description {
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.chapter-info {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.9rem;
}

.chapter-info span {
    background: var(--text-light);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    color: var(--text-gray);
}

.chapter-info span i {
    margin-right: 5px;
}

.chapter-info .mood {
    color: var(--secondary-color-3);
    font-weight: 500;
}

.importance-high {
    background: linear-gradient(135deg, #ffe5e5, #ffd5d5) !important;
    color: #d32f2f !important;
}

.importance-max {
    background: linear-gradient(135deg, #fff3e0, #ffe0b2) !important;
    color: #f57c00 !important;
}

/* ================================
   游戏攻略区
   ================================ */
.guide {
    background: var(--bg-light);
}

.guide-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.filter-btn {
    padding: 0.8rem 2rem;
    border: 2px solid var(--primary-color);
    background: var(--text-light);
    color: var(--secondary-color-1);
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover {
    background: var(--primary-color);
    color: var(--text-light);
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color-3));
    color: var(--text-light);
    border-color: transparent;
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.guide-card {
    background: var(--text-light);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 15px var(--shadow);
    transition: var(--transition);
}

.guide-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px var(--shadow-hover);
}

.guide-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color-3));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.guide-icon i {
    font-size: 2rem;
    color: var(--text-light);
}

.guide-card h3 {
    font-size: 1.3rem;
    color: var(--secondary-color-1);
    margin-bottom: 1rem;
}

.guide-card p {
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

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

.difficulty {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-weight: 500;
}

.difficulty.easy {
    background: #e8f5e9;
    color: #2e7d32;
}

.difficulty.medium {
    background: #fff3e0;
    color: #ef6c00;
}

.difficulty.hard {
    background: #ffebee;
    color: #c62828;
}

.recommend {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--secondary-color-3);
    font-weight: 500;
}

/* ================================
   版本历史区
   ================================ */
.versions {
    background: var(--text-light);
}

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

.version-item {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: var(--border-radius);
    margin-bottom: 2rem;
    box-shadow: 0 4px 15px var(--shadow);
    position: relative;
    border-left: 4px solid var(--secondary-color-3);
}

.version-badge {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    padding: 0.5rem 1.2rem;
    border-radius: 25px;
    font-size: 0.85rem;
    font-weight: 600;
}

.version-badge.current {
    background: linear-gradient(135deg, #ff6b6b, #ee5a6f);
    color: var(--text-light);
}

.version-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.version-header h3 {
    font-size: 1.8rem;
    color: var(--secondary-color-1);
}

.version-date {
    color: var(--text-gray);
    font-size: 1rem;
}

.version-date i {
    margin-right: 6px;
}

.version-content h4 {
    font-size: 1.2rem;
    color: var(--secondary-color-1);
    margin-bottom: 1rem;
}

.version-content ul {
    list-style: disc;
    padding-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.version-content ul li {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 0.5rem;
}

.version-info {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid #ddd;
}

.version-info span {
    color: var(--text-gray);
    font-size: 0.95rem;
}

.version-info span i {
    margin-right: 6px;
    color: var(--secondary-color-3);
}

.btn-download-small {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color-3));
    color: var(--text-light);
    padding: 0.6rem 1.5rem;
    border-radius: 25px;
    font-size: 0.95rem;
    font-weight: 600;
    transition: var(--transition);
}

.btn-download-small:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px var(--shadow-hover);
}

/* ================================
   常见问题区
   ================================ */
.faq {
    background: var(--bg-light);
}

.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--text-light);
    margin-bottom: 1rem;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 2px 10px var(--shadow);
}

.faq-question {
    width: 100%;
    background: transparent;
    border: none;
    padding: 1.5rem;
    text-align: left;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--secondary-color-1);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--bg-light);
}

.faq-question i {
    font-size: 1rem;
    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: 1000px;
}

.faq-answer > * {
    padding: 0 1.5rem 1.5rem;
}

.faq-answer p {
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 1rem;
}

.faq-answer ul {
    list-style: disc;
    padding-left: 2.5rem;
    margin-bottom: 1rem;
}

.faq-answer ul li {
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 0.5rem;
}

.faq-answer strong {
    color: var(--secondary-color-1);
}

/* ================================
   页脚
   ================================ */
.footer {
    background: linear-gradient(135deg, var(--secondary-color-1), var(--secondary-color-2));
    color: var(--text-light);
    padding: 3rem 0 1.5rem;
}

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

.footer-section h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.footer-section p {
    line-height: 1.7;
    opacity: 0.9;
    font-size: 0.95rem;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: var(--text-light);
    opacity: 0.85;
    transition: var(--transition);
}

.footer-links a:hover {
    opacity: 1;
    padding-left: 5px;
}

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

.footer-bottom p {
    margin-bottom: 0.5rem;
    opacity: 0.8;
    font-size: 0.9rem;
}

.footer-disclaimer {
    font-size: 0.85rem;
    opacity: 0.7;
}

/* ================================
   响应式设计 - 平板
   ================================ */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.8rem;
    }

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

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

    .game-features {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

/* ================================
   响应式设计 - 移动端
   ================================ */
@media (max-width: 1024px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--secondary-color-1);
        flex-direction: column;
        justify-content: flex-start;
        padding: 2rem;
        gap: 0;
        transition: var(--transition);
    }

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

    .nav-menu li {
        width: 100%;
    }

    .nav-menu a {
        display: block;
        padding: 1rem;
        width: 100%;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .menu-toggle {
        display: flex;
    }

    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(8px, -8px);
    }

    .hero {
        padding: 3rem 0;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

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

    .hero-info {
        gap: 0.6rem;
    }

    .info-badge {
        padding: 0.4rem 0.8rem;
        font-size: 0.85rem;
    }

    .hero-tags {
        gap: 0.5rem;
    }

    .tag {
        padding: 0.3rem 0.8rem;
        font-size: 0.85rem;
    }

    .btn-download {
        padding: 0.9rem 2rem;
        font-size: 1rem;
    }

    section {
        padding: 3rem 0;
    }

    .section-title {
        font-size: 1.8rem;
        margin-bottom: 2rem;
    }

    .game-features {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .news-grid,
    .gallery-grid,
    .reviews-carousel,
    .chapters-grid,
    .guide-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .news-card {
        flex-direction: column;
        text-align: center;
    }

    .news-date {
        width: 100%;
        flex-direction: row;
        justify-content: center;
        gap: 1rem;
    }

    .review-stats {
        flex-direction: column;
        text-align: center;
    }

    .guide-filters {
        gap: 0.5rem;
    }

    .filter-btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
    }

    .version-badge {
        position: static;
        display: inline-block;
        margin-bottom: 1rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }

    .back-to-top i {
        font-size: 18px;
    }
}

/* ================================
   小屏幕移动端优化
   ================================ */
@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero-title {
        font-size: 1.8rem;
    }

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

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

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

    .gallery-grid {
        grid-template-columns: 1fr;
    }
}