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

:root {
    --primary-color: #8A2BE2;
    --primary-dark: #4B0082;
    --secondary-color: #FF6B6B;
    --accent-color: #4ECDC4;
    --dark-color: #1A1A2E;
    --light-color: #F8F9FA;
    --gray-color: #6C757D;
    --light-gray: #E9ECEF;
    --border-radius: 8px;
    --box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: var(--light-color);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

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

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(to right, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    font-size: 1.1rem;
    color: var(--gray-color);
    margin-bottom: 3rem;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: linear-gradient(to right, var(--primary-color), var(--primary-dark));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(138, 43, 226, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
}

/* 导航栏样式 */
.navbar {
    background-color: rgba(26, 26, 46, 0.95);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
}

.logo img {
    height: 40px;
    margin-right: 10px;
}

.nav-menu {
    display: flex;
}

.nav-menu li {
    margin-left: 30px;
}

.nav-menu a {
    color: white;
    font-weight: 500;
    font-size: 1rem;
    padding: 5px 0;
    position: relative;
    transition: var(--transition);
}

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

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

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

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
}

/* 首页横幅样式 */
.hero-section {
    background: linear-gradient(rgba(26, 26, 46, 0.9), rgba(26, 26, 46, 0.9)), 
                url('../images/hero-bg.jpg') center/cover no-repeat;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    color: white;
    text-align: center;
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 10px;
    background: linear-gradient(to right, #8A2BE2, #FF6B6B);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-content h2 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--accent-color);
}

.hero-content p {
    font-size: 1.2rem;
    max-width: 800px;
    margin: 0 auto 20px;
    color: rgba(255, 255, 255, 0.8);
}

.hero-description {
    font-size: 1.1rem;
    max-width: 700px;
    margin: 30px auto;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

/* 游戏介绍样式 */
.about-section {
    padding: 100px 0;
    background-color: white;
}

.about-content {
    display: flex;
    align-items: center;
    gap: 50px;
    margin-top: 50px;
}

.about-text {
    flex: 1;
}

.about-text h3 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--primary-dark);
}

.about-text p {
    margin-bottom: 20px;
    color: var(--gray-color);
    line-height: 1.8;
}

.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.feature {
    text-align: center;
    padding: 25px 15px;
    border-radius: var(--border-radius);
    background-color: var(--light-gray);
    transition: var(--transition);
}

.feature:hover {
    transform: translateY(-10px);
    box-shadow: var(--box-shadow);
}

.feature i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.feature h4 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.about-image {
    flex: 1;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

/* 版本介绍样式 */
.versions-section {
    padding: 100px 0;
    background-color: var(--light-gray);
}

.versions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.version-card {
    background-color: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.version-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.version-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

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

.version-card:hover .version-image img {
    transform: scale(1.05);
}

.version-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background-color: var(--primary-color);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.version-content {
    padding: 25px;
}

.version-content h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--primary-dark);
}

.version-meta {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
    color: var(--gray-color);
    font-size: 0.9rem;
}

.version-meta i {
    margin-right: 5px;
}

.version-content p {
    color: var(--gray-color);
    margin-bottom: 20px;
    line-height: 1.6;
}

.version-features {
    margin-top: 20px;
}

.version-features li {
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

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

/* 游戏攻略样式 */
.guides-section {
    padding: 100px 0;
    background-color: white;
}

.guides-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 10px;
}

.tab-btn {
    padding: 10px 25px;
    background-color: var(--light-gray);
    border: none;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn.active {
    background: linear-gradient(to right, var(--primary-color), var(--primary-dark));
    color: white;
}

.tab-btn:hover:not(.active) {
    background-color: #ddd;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.guide-card {
    display: flex;
    background-color: var(--light-gray);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.guide-image {
    flex: 1;
    min-width: 300px;
}

.guide-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.guide-text {
    flex: 2;
    padding: 30px;
}

.guide-text h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--primary-dark);
}

.guide-text h4 {
    font-size: 1.3rem;
    margin: 20px 0 10px;
    color: var(--primary-color);
}

.guide-text ol, .guide-text ul {
    margin-left: 20px;
    margin-bottom: 20px;
}

.guide-text li {
    margin-bottom: 8px;
    color: var(--gray-color);
}

.read-more {
    display: inline-flex;
    align-items: center;
    color: var(--primary-color);
    font-weight: 600;
    margin-top: 20px;
}

.read-more i {
    margin-left: 8px;
    transition: var(--transition);
}

.read-more:hover i {
    transform: translateX(5px);
}

/* 游戏图片样式 */
.gallery-section {
    padding: 100px 0;
    background-color: var(--light-gray);
}

.gallery-filters {
    display: flex;
    justify-content: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 10px;
}

.filter-btn {
    padding: 8px 20px;
    background-color: white;
    border: 2px solid var(--light-gray);
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

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

.filter-btn:hover:not(.active) {
    border-color: var(--primary-color);
}

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

.gallery-item {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    height: 250px;
}

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

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

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    color: white;
    padding: 20px;
    transform: translateY(100%);
    transition: var(--transition);
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

.gallery-view-more {
    text-align: center;
    margin-top: 50px;
}

/* 游戏下载样式 */
.download-section {
    padding: 100px 0;
    background-color: white;
}

.download-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.download-card {
    background-color: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    border: 2px solid var(--light-gray);
    transition: var(--transition);
}

.download-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-10px);
}

.download-header {
    background: linear-gradient(to right, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.download-header h3 {
    font-size: 1.5rem;
}

.download-badge {
    background-color: var(--secondary-color);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.download-content {
    padding: 25px;
}

.download-info p, .download-specs p {
    margin-bottom: 10px;
    color: var(--gray-color);
}

.download-info i {
    color: var(--accent-color);
    margin-right: 10px;
}

.download-specs i {
    color: var(--primary-color);
    margin-right: 10px;
}

.download-links {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 25px;
}

.download-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
    background: linear-gradient(to right, var(--primary-color), var(--primary-dark));
    color: white;
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: var(--transition);
}

.download-btn i {
    margin-right: 10px;
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(138, 43, 226, 0.3);
}

.download-btn.alt {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.download-btn.alt:hover {
    background-color: var(--primary-color);
    color: white;
}

.download-notice {
    margin-top: 50px;
    padding: 25px;
    background-color: var(--light-gray);
    border-radius: var(--border-radius);
    border-left: 5px solid var(--accent-color);
}

.download-notice h4 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--primary-dark);
    display: flex;
    align-items: center;
}

.download-notice h4 i {
    margin-right: 10px;
    color: var(--accent-color);
}

.download-notice ul {
    margin-left: 20px;
}

.download-notice li {
    margin-bottom: 10px;
    color: var(--gray-color);
    position: relative;
    padding-left: 20px;
}

.download-notice li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-size: 1.5rem;
}

/* 页脚样式 */
.footer {
    background-color: var(--dark-color);
    color: white;
    padding: 70px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 50px;
}

.footer-logo img {
    height: 40px;
    margin-bottom: 15px;
}

.footer-logo p {
    color: rgba(255, 255, 255, 0.7);
}

.footer-links h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: white;
    position: relative;
    padding-bottom: 10px;
}

.footer-links h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: var(--accent-color);
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

.footer-bottom p {
    margin-bottom: 10px;
}

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

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

.back-to-top:hover {
    background-color: var(--primary-dark);
    transform: translateY(-5px);
}