/* 全局重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", sans-serif;
    scroll-behavior: smooth;
}

/* 基础颜色 */
:root {
    --primary: #6a0dad;
    --secondary: #1a1a2e;
    --accent: #00ffff;
    --light: #f5f5f5;
    --dark: #111;
}

body {
    background: #0c0c0c;
    color: var(--light);
    line-height: 1.7;
}

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

/* 导航 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(0,0,0,0.85);
    backdrop-filter: blur(10px);
    z-index: 999;
    padding: 15px 0;
}
.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    font-size: 22px;
    font-weight: bold;
    color: var(--accent);
}
.nav-menu {
    display: flex;
    list-style: none;
    gap: 25px;
}
.nav-menu a {
    color: #fff;
    text-decoration: none;
    transition: 0.3s;
}
.nav-menu a:hover {
    color: var(--accent);
}

/* Banner 已修复：纯科技渐变背景，不依赖图片 */
.banner {
    margin-top: 70px;
    height: 500px;
    background: linear-gradient(135deg, #111 30%, #2d0b46 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}
.banner-content h1 {
    font-size: 48px;
    margin-bottom: 10px;
    color: var(--accent);
}
.banner-content p {
    font-size: 20px;
    margin-bottom: 30px;
}

/* 按钮 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    background: var(--primary);
    color: #fff;
    text-decoration: none;
    border-radius: 8px;
    transition: 0.3s;
}
.btn:hover {
    background: var(--accent);
    color: #000;
}
.btn-download {
    background: #4169e1;
    margin-top: 10px;
}

/* 区块 */
.section {
    padding: 80px 0;
}
.bg-dark {
    background: #121212;
}
.title {
    text-align: center;
    font-size: 32px;
    margin-bottom: 40px;
    color: var(--accent);
}
.content-box {
    max-width: 900px;
    margin: 0 auto;
    font-size: 17px;
    line-height: 1.8;
}

/* 下载 */
.download-box {
    display: flex;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
}
.download-item {
    background: #1a1a1a;
    padding: 30px;
    border-radius: 12px;
    width: 320px;
    text-align: center;
    border: 1px solid #333;
}

/* 玩法 */
.play-grid {
    display: flex;
    gap: 25px;
    flex-wrap: wrap;
    justify-content: center;
}
.play-card {
    background: #1a1a1a;
    padding: 30px;
    border-radius: 12px;
    width: 300px;
    border-left: 4px solid var(--accent);
}

/* 特色 */
.feature-list {
    max-width: 800px;
    margin: 0 auto;
    list-style: none;
}
.feature-list li {
    padding: 12px 0;
    font-size: 17px;
    position: relative;
    padding-left: 25px;
}
.feature-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: bold;
}

/* 截图 */
.screenshot-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}
.screenshot-grid img {
    width: 100%;
    border-radius: 8px;
    object-fit: cover;
    transition: 0.3s;
}
.screenshot-grid img:hover {
    transform: scale(1.03);
}
.tip {
    text-align: center;
    margin-top: 20px;
    color: #aaa;
}

/* 评价 */
.review-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
}
.review-card {
    background: #1a1a1a;
    padding: 25px;
    border-radius: 12px;
}
.star {
    color: gold;
    font-size: 18px;
    margin-bottom: 8px;
}

/* 底部 */
footer {
    background: #000;
    padding: 30px 0;
    text-align: center;
    color: #777;
}

/* 自适应手机 */
@media(max-width:768px){
    .nav-menu {
        gap: 12px;
        font-size: 14px;
    }
    .banner-content h1 {
        font-size: 32px;
    }
    .screenshot-grid {
        grid-template-columns: repeat(2,1fr);
    }
    .review-grid {
        grid-template-columns: 1fr;
    }
}