/* ===== CSS变量定义 ===== */
:root {
    --primary-color: #4f4933;
    --secondary-color: #e2bfb5;
    --accent-color: #89b1c9;
    --dark-color: #312d20;
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --medium-gray: #6c757d;
    --dark-gray: #343a40;
    --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--dark-color) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--secondary-color) 0%, var(--accent-color) 100%);
    --shadow-light: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 8px rgba(0, 0, 0, 0.15);
    --shadow-heavy: 0 8px 24px rgba(0, 0, 0, 0.2);
    --border-radius: 8px;
    --border-radius-large: 16px;
    --transition: all 0.3s ease;
    --font-family-primary: 'Noto Sans SC', sans-serif;
    --font-family-secondary: 'Inter', sans-serif;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family-primary);
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--white);
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
    transition: var(--transition);
}

/* ===== 工具类 ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-color);
    position: relative;
}

.section-title i {
    margin-right: 0.5rem;
    color: var(--accent-color);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--gradient-secondary);
    border-radius: 2px;
}

/* ===== 返回顶部按钮 ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 1000;
    box-shadow: var(--shadow-medium);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-heavy);
}

/* ===== 头部导航 ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(79, 73, 51, 0.1);
    z-index: 1000;
    transition: var(--transition);
}

.navbar {
    padding: 1rem 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

.logo-icon {
    width: 32px;
    height: 32px;
    margin-right: 10px;
    border-radius: 4px;
}

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

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--dark-color);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.nav-link:hover {
    background-color: var(--secondary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.nav-link i {
    font-size: 0.9rem;
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger .bar {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    transition: var(--transition);
    border-radius: 2px;
}

.hamburger.active .bar:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active .bar:nth-child(2) {
    opacity: 0;
}

.hamburger.active .bar:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* ===== 英雄区 ===== */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: var(--gradient-secondary);
    opacity: 0.1;
    transform: skewX(-15deg);
    transform-origin: top;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--medium-gray);
    margin-bottom: 1.5rem;
    font-style: italic;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--dark-gray);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-features {
    display: flex;
    gap: 2rem;
    margin-bottom: 2.5rem;
}

.feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    font-weight: 500;
}

.feature i {
    color: var(--accent-color);
    font-size: 1.2rem;
}

.hero-download {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: var(--border-radius-large);
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    text-align: center;
    box-shadow: var(--shadow-medium);
    max-width: 200px;
}

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

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

.download-info {
    display: flex;
    gap: 1rem;
    font-size: 0.9rem;
    color: var(--medium-gray);
}

.download-info span {
    padding: 0.25rem 0.75rem;
    background-color: var(--light-gray);
    border-radius: var(--border-radius);
    font-weight: 500;
}

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

.game-preview {
    position: relative;
    border-radius: var(--border-radius-large);
    overflow: hidden;
    box-shadow: var(--shadow-heavy);
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: var(--transition);
}

.game-preview:hover {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.game-preview img {
    width: 100%;
    height: auto;
    display: block;
}

/* ===== 游戏动态 ===== */
.news {
    padding: 80px 0;
    background-color: var(--white);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.news-card {
    background: var(--white);
    border-radius: var(--border-radius-large);
    padding: 2rem;
    box-shadow: var(--shadow-light);
    border: 1px solid rgba(79, 73, 51, 0.1);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.news-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-secondary);
}

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

.news-date {
    color: var(--accent-color);
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.news-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.news-content {
    color: var(--dark-gray);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.news-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-color);
    font-weight: 500;
    transition: var(--transition);
}

.news-link:hover {
    color: var(--primary-color);
    transform: translateX(3px);
}

/* ===== 媒体画廊 ===== */
.gallery {
    padding: 80px 0;
    background: var(--light-gray);
}

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

.gallery-item {
    position: relative;
    border-radius: var(--border-radius-large);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-light);
}

.gallery-item:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-medium);
}

.gallery-item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(79, 73, 51, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

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

.gallery-overlay i {
    color: var(--white);
    font-size: 2rem;
}

/* ===== 用户评价 ===== */
.reviews {
    padding: 80px 0;
    background: var(--white);
}

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

.rating-overview {
    text-align: center;
    padding: 2rem;
    background: var(--light-gray);
    border-radius: var(--border-radius-large);
}

.rating-score {
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.rating-stars {
    font-size: 1.5rem;
    color: #ffd700;
    margin-bottom: 0.5rem;
}

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

.rating-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.tag {
    padding: 0.5rem 1rem;
    background: var(--secondary-color);
    color: var(--primary-color);
    border-radius: var(--border-radius);
    font-weight: 500;
    font-size: 0.9rem;
}

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

.review-card {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    opacity: 0;
    transform: translateX(50px);
    transition: var(--transition);
    background: var(--light-gray);
    padding: 2rem;
    border-radius: var(--border-radius-large);
}

.review-card.active {
    opacity: 1;
    transform: translateX(0);
}

.review-rating {
    color: #ffd700;
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.review-text {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--dark-gray);
    margin-bottom: 1rem;
    font-style: italic;
}

.review-author {
    color: var(--medium-gray);
    font-weight: 500;
    text-align: right;
}

.carousel-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
}

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

.carousel-btn:hover {
    transform: scale(1.1);
}

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

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

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

/* ===== 版本历史 ===== */
.versions {
    padding: 80px 0;
    background: var(--light-gray);
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 2rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gradient-secondary);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 5rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 1.25rem;
    top: 0;
    width: 1.5rem;
    height: 1.5rem;
    background: var(--accent-color);
    border-radius: 50%;
    border: 4px solid var(--white);
}

.timeline-date {
    color: var(--accent-color);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.timeline-content {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-light);
    border: 1px solid rgba(79, 73, 51, 0.1);
}

.version-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.version-info {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.version-size,
.version-platform {
    padding: 0.25rem 0.75rem;
    background: var(--secondary-color);
    color: var(--primary-color);
    border-radius: var(--border-radius);
    font-size: 0.8rem;
    font-weight: 500;
}

.version-features {
    margin-bottom: 1.5rem;
}

.version-features li {
    color: var(--dark-gray);
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

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

.version-download {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: var(--border-radius);
    font-weight: 500;
    transition: var(--transition);
}

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

.version-download.disabled {
    background: var(--medium-gray);
    cursor: not-allowed;
    opacity: 0.6;
}

.version-download.disabled:hover {
    transform: none;
    box-shadow: none;
}

/* ===== 常见问题 ===== */
.faq {
    padding: 80px 0;
    background: var(--white);
}

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

.faq-item {
    margin-bottom: 1rem;
    border: 1px solid rgba(79, 73, 51, 0.1);
    border-radius: var(--border-radius-large);
    overflow: hidden;
    transition: var(--transition);
}

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

.faq-question {
    width: 100%;
    padding: 1.5rem 2rem;
    text-align: left;
    background: var(--light-gray);
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

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

.faq-question i {
    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;
    background: var(--white);
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding: 1.5rem 2rem;
    color: var(--dark-gray);
    line-height: 1.7;
}

/* ===== 底部信息 ===== */
.footer {
    background: var(--gradient-primary);
    color: var(--white);
    padding: 3rem 0 1rem;
}

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

.footer-section h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--secondary-color);
}

.footer-section ul {
    list-style: none;
}

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

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--white);
    transform: translateX(3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

.footer-logo img {
    width: 24px;
    height: 24px;
    border-radius: 4px;
}

.footer-info {
    text-align: right;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

.footer-info a {
    color: var(--secondary-color);
}

/* ===== 图片预览模态框 ===== */
.modal {
    display: none;
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    animation: fadeIn 0.3s ease;
}

.modal-content {
    margin: auto;
    display: block;
    max-width: 90%;
    max-height: 90%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: var(--border-radius);
    animation: zoomIn 0.3s ease;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: var(--white);
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    z-index: 10000;
    transition: var(--transition);
}

.modal-close:hover {
    opacity: 0.7;
}

.modal-navigation {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 2rem;
    color: var(--white);
    cursor: pointer;
    background: rgba(0, 0, 0, 0.5);
    padding: 1rem;
    border-radius: 50%;
    transition: var(--transition);
}

.modal-prev {
    left: 30px;
}

.modal-next {
    right: 30px;
}

.modal-navigation:hover {
    background: rgba(0, 0, 0, 0.8);
}

/* ===== 动画效果 ===== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes zoomIn {
    from { transform: translate(-50%, -50%) scale(0.8); }
    to { transform: translate(-50%, -50%) scale(1); }
}

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

/* ===== 响应式设计 ===== */
@media (max-width: 768px) {
    /* 导航栏移动端样式 */
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: var(--shadow-medium);
        border-top: 1px solid rgba(79, 73, 51, 0.1);
        padding: 2rem 0;
        gap: 1rem;
    }

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

    .nav-link {
        padding: 1rem 2rem;
        width: 100%;
        justify-content: center;
    }

    /* 英雄区移动端 */
    .hero {
        padding: 100px 0 60px;
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-features {
        justify-content: center;
        flex-wrap: wrap;
        gap: 1rem;
    }

    .download-btn {
        max-width: 100%;
    }

    /* 其他模块移动端调整 */
    .section-title {
        font-size: 2rem;
    }

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

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

    .reviews-stats {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .rating-tags {
        justify-content: center;
    }

    .carousel-controls {
        gap: 1rem;
    }

    .timeline {
        padding-left: 1rem;
    }

    .timeline::before {
        left: 1rem;
    }

    .timeline-item {
        padding-left: 3rem;
    }

    .timeline-item::before {
        left: 0.25rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .footer-info {
        text-align: center;
    }

    /* 模态框移动端 */
    .modal-close {
        top: 10px;
        right: 15px;
        font-size: 1.5rem;
    }

    .modal-navigation {
        font-size: 1.5rem;
        padding: 0.5rem;
    }

    .modal-prev {
        left: 10px;
    }

    .modal-next {
        right: 10px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

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

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

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

    .news-card,
    .timeline-content,
    .review-card {
        padding: 1.5rem;
    }

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

/* ===== 高对比度和可访问性优化 ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* ===== 打印样式 ===== */
@media print {
    .header,
    .back-to-top,
    .carousel-controls,
    .modal {
        display: none !important;
    }
    
    .hero,
    .news,
    .gallery,
    .reviews,
    .versions,
    .faq {
        padding: 20px 0 !important;
        background: var(--white) !important;
        color: var(--dark-color) !important;
    }
    
    a {
        color: var(--dark-color) !important;
        text-decoration: underline !important;
    }
}