/* Base Styles */
:root {
    /* Color variables will be defined here */
    --primary-color: #1a1a1a;
    --secondary-color: #ff4d4d;
    --text-color: #ffffff;
    --accent-color: #6b1fb1;
}

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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--primary-color);
}

/* Hero section styles */
.hero {
    position: relative;
    height: 100vh;
    width: 100%;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    color: #fff;
}

/* Video background */
.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
}

/* Dark overlay for better text visibility */
.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: -1;
}

/* Navigation styles */
.main-nav {
    padding: 1.5rem;
    z-index: 1;
}

.main-nav ul {
    display: flex;
    justify-content: center;
    gap: 2rem;
    list-style: none;
}

.main-nav a {
    color: #fff;
    text-decoration: none;
    font-size: 1.1rem;
    transition: opacity 0.3s;
}

.main-nav a:hover {
    opacity: 0.8;
}

/* Hero content styles */
.hero-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 2rem;
}

.game-logo {
    max-width: 400px;
    margin-bottom: 2rem;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

section {
    padding: 4rem 2rem;
}

/* Navigation */
.main-nav {
    position: fixed;
    width: 100%;
    z-index: 100;
}

.main-nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
    padding: 1rem;
}

/* Typography */
h1, h2, h3 {
    margin-bottom: 1.5rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    section {
        padding: 2rem 1rem;
    }
}

/* Navigation bar styles */
.main-nav {
    padding: 1rem 2rem;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-logo {
    height: 40px;
    width: auto;
}

.nav-title {
    color: #fff;
    font-size: 1.5rem;
    font-weight: bold;
    text-decoration: none;
}

/* CTA Buttons styles */
.cta-buttons {
    margin-top: 2rem;
}

.btn-primary {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--accent-color);
    color: #fff;
    text-decoration: none;
    border-radius: 30px;
    font-size: 1.2rem;
    font-weight: bold;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary:hover {
    background: transparent;
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(107, 31, 177, 0.3);
}

/* Game Intro Section */
.intro-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.intro-text {
    padding: 2rem;
}

.intro-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.8;
}

.highlight {
    color: var(--accent-color);
    font-size: 1.3rem;
    font-weight: bold;
}

/* Video Container Styles */
.video-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 宽高比 */
    height: 0;
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* 可以删除之前的 .feature-img 相关样式 */

/* Features Section */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr); /* 改为固定2列 */
    gap: 3rem;
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 3rem; /* 增加内边距 */
    border-radius: 15px;
    text-align: center;
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    gap: 2rem; /* 增加内部元素间距 */
}

.feature-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
}

.feature-icon {
    width: 100%;
    height: 300px; /* 增加图片高度 */
    margin: 0 auto;
}

.feature-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 8px;
}

.feature-card h3 {
    color: var(--accent-color);
    margin: 0;
    font-size: 1.8rem; /* 增加标题字体大小 */
}

.feature-card p {
    margin: 0;
    line-height: 1.8;
    font-size: 1.1rem; /* 增加正文字体大小 */
    color: rgba(255, 255, 255, 0.9);
}

/* 响应式调整 */
@media (max-width: 1200px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-icon {
        height: 180px;
    }
}

/* Game Intro Section */
.intro-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.intro-text {
    padding: 2rem;
}

.intro-text p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    line-height: 1.8;
}

.highlight {
    color: var(--accent-color);
    font-size: 1.3rem;
    font-weight: bold;
}

/* Video Container Styles */
.video-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 宽高比 */
    height: 0;
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* 移动端响应式优化 */
@media (max-width: 768px) {
    .intro-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 1rem;
    }

    .intro-text {
        padding: 1rem;
        order: 2; /* 在移动端将文字放在视频下方 */
    }

    .intro-text p {
        font-size: 1rem;
        margin-bottom: 1rem;
    }

    .highlight {
        font-size: 1.1rem;
    }

    .video-container {
        margin: 0 1rem; /* 添加左右边距 */
    }
}

/* 小屏幕设备的额外优化 */
@media (max-width: 480px) {
    .intro-text {
        padding: 1rem 0.5rem;
    }

    .video-container {
        margin: 0 0.5rem;
    }
}

/* Characters Section */
.character-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 4rem;
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

.character-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    overflow: hidden;
    transition: transform 0.3s ease;
}

.character-card:hover {
    transform: translateY(-5px);
}

.character-image {
    width: 100%;
    height: 400px;
    overflow: hidden;
}

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

.character-info {
    padding: 2rem;
}

.character-info h3 {
    color: var(--accent-color);
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

/* Game Systems Section */
.systems-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

.system-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    overflow: hidden;
    transition: transform 0.3s ease;
}

.system-card:hover {
    transform: translateY(-5px);
}

.system-icon {
    width: 100%;
    height: 250px;
}

.system-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.system-info {
    padding: 2rem;
}

.system-info h3 {
    color: var(--accent-color);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .systems-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .character-grid,
    .systems-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 1rem;
    }

    .character-image {
        height: 300px;
    }

    .system-icon {
        height: 200px;
    }
}

/* Reviews Section */
.reviews {
    padding: 4rem 2rem;
}

.reviews-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.review-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    transition: transform 0.3s ease;
}

.review-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.08);
}

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

.review-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.review-source {
    width: 24px;
    height: 24px;
}

.review-time {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

.review-rating {
    color: #66c0f4;
    font-weight: bold;
}

.review-content {
    font-size: 1rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
}

.review-footer {
    margin-top: auto;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .reviews-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .reviews-container {
        grid-template-columns: 1fr;
    }
    
    .review-card {
        padding: 1.5rem;
    }
}

/* SEO Content Section Styles */
.seo-content {
    max-width: 1200px;
    margin: 4rem auto;
    padding: 2rem;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.8;
}

.seo-content h2 {
    font-size: 2.2rem;
    color: var(--accent-color);
    margin: 3rem 0 1.5rem;
}

.seo-content h3 {
    font-size: 1.8rem;
    margin: 2rem 0 1rem;
    color: #fff;
}

.seo-content h4 {
    font-size: 1.4rem;
    margin: 1.5rem 0 0.8rem;
    color: var(--accent-color);
}

.seo-content p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.feature-details,
.tech-specs,
.community-section,
.future-content {
    margin: 2rem 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .seo-content {
        padding: 1rem;
    }

    .seo-content h2 {
        font-size: 1.8rem;
    }

    .seo-content h3 {
        font-size: 1.5rem;
    }

    .seo-content h4 {
        font-size: 1.2rem;
    }

    .seo-content p {
        font-size: 1rem;
    }
}