/* 全局重置 - 优化加载速度 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    scroll-behavior: smooth;
}

/* 变量 - 科技蓝主色调 */
:root {
    --primary: #00f0ff;
    --primary-dark: #0078ff;
    --dark: #0a0a1a;
    --darker: #05050f;
    --light: #ffffff;
    --gray: #888899;
    --transition: 0.3s ease;
}

body {
    background-color: var(--darker);
    color: var(--light);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 通用容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 按钮样式 */
.btn-primary {
    display: inline-block;
    padding: 14px 36px;
    background: linear-gradient(90deg, var(--primary), var(--primary-dark));
    color: var(--dark);
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.5);
}

/* 导航栏 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(10, 10, 26, 0.9);
    backdrop-filter: blur(10px);
    z-index: 999;
    border-bottom: 1px solid rgba(0, 240, 255, 0.1);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
}

.logo i {
    font-size: 26px;
}

.nav-menu {
    display: flex;
    gap: 28px;
}

.nav-link {
    color: var(--light);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--primary);
}

.mobile-menu-btn {
    display: none;
    font-size: 24px;
    color: var(--light);
    cursor: pointer;
}

/* Banner */
.banner {
    height: 100vh;
    background: linear-gradient(rgba(5, 5, 15, 0.8), rgba(5, 5, 15, 0.9)), url('images/banner-1920x1080.jpg') center/cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 70px;
}

.banner-content h1 {
    font-size: 60px;
    background: linear-gradient(90deg, var(--primary), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 15px;
    text-shadow: 0 0 30px rgba(0, 240, 255, 0.3);
}

.banner-content p {
    font-size: 22px;
    color: var(--gray);
    margin-bottom: 35px;
}

/* 通用区块 */
.section {
    padding: 80px 0;
    background-color: var(--dark);
}

.dark-section {
    background-color: var(--darker);
}

.section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: var(--light);
    position: relative;
}

.section-title::after {
    content: '';
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-dark));
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 3px;
}

/* 游戏简介 */
.intro-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    font-size: 17px;
    color: var(--gray);
    line-height: 1.8;
}

.intro-content p {
    margin-bottom: 20px;
}

/* 游戏下载 */
.download-section {
    background: linear-gradient(135deg, #0a0a22, #0f0f2a);
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px 30px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: 15px;
    text-decoration: none;
    color: var(--light);
    transition: var(--transition);
    min-width: 200px;
}

.download-btn:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 240, 255, 0.15);
}

.download-btn i {
    font-size: 30px;
    color: var(--primary);
}

.download-btn span {
    font-weight: 600;
    font-size: 16px;
}

.download-btn p {
    font-size: 12px;
    color: var(--gray);
    margin: 0;
}

/* 核心剧情 */
.story-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    font-size: 17px;
    color: var(--gray);
    line-height: 1.8;
}

.story-content p {
    margin-bottom: 20px;
}

/* 游戏特色 */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 240, 255, 0.1);
    padding: 35px 25px;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
}

.feature-item:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
}

.feature-item i {
    font-size: 40px;
    color: var(--primary);
    margin-bottom: 20px;
}

.feature-item h3 {
    font-size: 20px;
    margin-bottom: 12px;
    color: var(--light);
}

.feature-item p {
    color: var(--gray);
    font-size: 15px;
}

/* 游戏攻略 */
.guide-list {
    max-width: 800px;
    margin: 0 auto;
}

.guide-item {
    padding: 20px;
    background: rgba(255, 255, 255, 0.03);
    border-left: 3px solid var(--primary);
    margin-bottom: 15px;
    border-radius: 8px;
}

.guide-item h3 {
    color: var(--primary);
    font-size: 18px;
    margin-bottom: 8px;
}

.guide-item p {
    color: var(--gray);
    font-size: 15px;
}

/* 游戏截图 - 6张网格 */
.screenshot-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.screenshot-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 10px;
    border: 1px solid rgba(0, 240, 255, 0.2);
    transition: var(--transition);
}

.screenshot-img:hover {
    transform: scale(1.03);
    border-color: var(--primary);
}

/* 用户评价 - 6条 */
.review-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 25px;
}

.review-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 240, 255, 0.1);
    padding: 25px;
    border-radius: 15px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.avatar {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: linear-gradient(90deg, var(--primary), var(--primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    color: var(--dark);
}

.user-info h4 {
    font-size: 16px;
    color: var(--light);
    margin-bottom: 5px;
}

.stars {
    color: #ffcc00;
    font-size: 14px;
}

.review-item p {
    color: var(--gray);
    font-size: 15px;
    line-height: 1.7;
}

/* 页脚 */
.footer {
    background-color: var(--darker);
    padding: 30px 0;
    text-align: center;
    border-top: 1px solid rgba(0, 240, 255, 0.1);
}

.footer p {
    color: var(--gray);
    font-size: 14px;
}

/* 自适应 - 手机端优化 */
@media (max-width: 992px) {
    .screenshot-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--dark);
        width: 100%;
        text-align: center;
        padding: 30px 0;
        transition: 0.4s;
        box-shadow: 0 10px 15px rgba(0,0,0,0.3);
    }

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

    .mobile-menu-btn {
        display: block;
    }

    .banner-content h1 {
        font-size: 40px;
    }

    .banner-content p {
        font-size: 18px;
    }

    .section-title {
        font-size: 28px;
    }

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

    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
}