/* 
   紧凑型游戏官网 - 苹果风格设计
   CSS样式表
*/

/* ========== 基础样式 ========== */
:root {
    /* 主题颜色 */
    --color-primary: #0071e3;
    --color-primary-dark: #0058b3;
    --color-secondary: #1d1d1f;
    --color-light: #f5f5f7;
    --color-light-gray: #e6e6e6;
    --color-medium-gray: #86868b;
    --color-dark-gray: #424245;
    --color-white: #ffffff;
    
    /* 字体 */
    --font-primary: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    
    /* 尺寸 */
    --header-height: 56px;
    --container-width: 1100px;
    --radius-small: 6px;
    --radius-medium: 10px;
    --radius-large: 16px;
    
    /* 阴影 */
    --shadow-small: 0 2px 6px rgba(0, 0, 0, 0.05);
    --shadow-medium: 0 6px 16px rgba(0, 0, 0, 0.07);
    
    /* 动画 */
    --transition-fast: 0.2s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-primary);
    font-size: 15px;
    line-height: 1.4;
    color: var(--color-secondary);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
}

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

a:hover {
    color: var(--color-primary-dark);
}

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

ul {
    list-style: none;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* ========== 按钮样式 ========== */
.btn-primary,
.btn-secondary,
.btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--radius-small);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    outline: none;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-small);
}

.btn-secondary {
    background-color: var(--color-light);
    color: var(--color-secondary);
}

.btn-secondary:hover {
    background-color: var(--color-light-gray);
    transform: translateY(-1px);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-secondary);
    border: 1px solid var(--color-light-gray);
}

.btn-outline:hover {
    background-color: var(--color-light);
    transform: translateY(-1px);
}

/* ========== 头部样式 ========== */
.main-header {
    position: sticky;
    top: 0;
    width: 100%;
    height: var(--header-height);
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 100;
    box-shadow: var(--shadow-small);
}

.main-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo h1 {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo span {
    font-weight: 400;
    opacity: 0.7;
}

.main-nav ul {
    display: flex;
    gap: 24px;
}

.main-nav a {
    color: var(--color-medium-gray);
    font-size: 14px;
    font-weight: 500;
    position: relative;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--color-secondary);
}

.main-nav a.active:after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--color-primary);
    border-radius: 1px;
}

.header-actions {
    display: flex;
    gap: 10px;
}

/* ========== 英雄区域样式 ========== */
.hero {
    padding: 60px 0;
    background: linear-gradient(180deg, var(--color-white) 0%, var(--color-light) 100%);
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: flex;
    align-items: center;
    gap: 40px;
}

.hero-content {
    flex: 1;
}

.hero-title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.5px;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--color-medium-gray);
    margin-bottom: 24px;
    font-weight: 400;
}

.hero-buttons {
    display: flex;
    gap: 12px;
}

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

/* ========== 特色和新闻部分样式 ========== */
.features-and-news {
    padding: 60px 0;
    background-color: var(--color-white);
}

.features-and-news .container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 50px;
}

.section-title {
    font-size: 28px;
    margin-bottom: 30px;
    font-weight: 600;
}

/* 特色部分 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.feature-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    background-color: var(--color-light);
    border-radius: var(--radius-medium);
    padding: 20px;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-small);
}

.feature-icon {
    width: 40px;
    height: 40px;
    min-width: 40px;
    background-color: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 16px;
}

.feature-content h3 {
    font-size: 16px;
    margin-bottom: 6px;
}

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

/* 新闻部分 */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.see-all {
    font-size: 14px;
    font-weight: 500;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.news-card {
    background-color: var(--color-light);
    border-radius: var(--radius-medium);
    overflow: hidden;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-small);
}

.news-image {
    height: 140px;
    overflow: hidden;
}

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

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

.news-content {
    padding: 16px;
}

.news-content h3 {
    font-size: 16px;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.news-date {
    font-size: 12px;
    color: var(--color-medium-gray);
    display: block;
    margin-bottom: 10px;
}

.read-more {
    font-size: 13px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
}

.read-more:after {
    content: '→';
    margin-left: 4px;
    transition: transform var(--transition-fast);
}

.read-more:hover:after {
    transform: translateX(3px);
}

/* ========== CTA和下载部分样式 ========== */
.cta-and-download {
    padding: 60px 0;
    background-color: var(--color-light);
}

.cta-and-download .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

/* CTA部分 */
.cta-section h2 {
    font-size: 24px;
    margin-bottom: 10px;
}

.cta-section p {
    font-size: 15px;
    color: var(--color-medium-gray);
    margin-bottom: 20px;
}

.cta-form {
    display: flex;
    margin-bottom: 20px;
}

.email-input {
    flex: 1;
    padding: 10px 16px;
    border: none;
    border-radius: var(--radius-small) 0 0 var(--radius-small);
    font-size: 14px;
    outline: none;
}

.cta-form .btn-primary {
    border-radius: 0 var(--radius-small) var(--radius-small) 0;
}

.social-icons {
    display: flex;
    gap: 10px;
}

.social-icons a {
    width: 32px;
    height: 32px;
    background-color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-secondary);
    font-size: 16px;
    transition: all var(--transition-fast);
}

.social-icons a:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
}

/* 下载部分 */
.download-section h2 {
    font-size: 24px;
    margin-bottom: 20px;
}

.platform-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.platform-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background-color: var(--color-white);
    border-radius: var(--radius-small);
    color: var(--color-secondary);
    font-weight: 500;
    transition: all var(--transition-fast);
    justify-content: center;
}

.platform-btn i {
    font-size: 18px;
}

.platform-btn:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-small);
}

/* ========== 页脚样式 ========== */
.main-footer {
    padding: 50px 0 20px;
    background-color: var(--color-secondary);
    color: var(--color-white);
}

.footer-top {
    display: grid;
    grid-template-columns: 1fr 3fr;
    gap: 40px;
    padding-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 20px;
}

.footer-logo h2 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.5px;
}

.footer-logo span {
    font-weight: 400;
    opacity: 0.7;
}

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

.footer-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.footer-links-column h3 {
    font-size: 15px;
    margin-bottom: 15px;
    color: var(--color-white);
}

.footer-links-column ul li {
    margin-bottom: 8px;
}

.footer-links-column ul li a {
    color: var(--color-medium-gray);
    font-size: 13px;
    transition: color var(--transition-fast);
}

.footer-links-column ul li a:hover {
    color: var(--color-white);
}

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

.copyright {
    font-size: 12px;
    color: var(--color-medium-gray);
}

/* ========== 响应式设计 ========== */
@media (max-width: 992px) {
    .features-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cta-and-download .container {
        grid-template-columns: 1fr;
    }
    
    .footer-top {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .main-header .container {
        flex-wrap: wrap;
    }
    
    .main-nav {
        order: 3;
        width: 100%;
        margin-top: 12px;
    }
    
    .main-nav ul {
        justify-content: center;
        gap: 16px;
    }
    
    .hero .container {
        flex-direction: column;
    }
    
    .hero-content {
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

@media (max-width: 576px) {
    .platform-buttons {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}