:root {
    --color-brown-dark: #2C1810;
    --color-brown-medium: #3D2318;
    --color-brown-light: #4A2B1D;
    --color-accent: #D4A064;
    --color-text: #FFFFFF;
    --color-text-secondary: #E0E0E0;
}

.header-top {
    background-color: var(--color-brown-dark);
    padding: 1rem 2rem;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

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

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

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

.game-title {
    color: var(--color-text);
    font-size: 1.25rem;
    font-weight: 600;
}

.btn-play {
    background-color: var(--color-accent);
    color: var(--color-brown-dark);
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.btn-play:hover {
    transform: scale(1.05);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-top {
        padding: 0.75rem 1rem;
    }

    .game-title {
        font-size: 1rem;
    }

    .btn-play {
        padding: 0.5rem 1rem;
    }
}

.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
    overflow: hidden;
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-video video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-video .overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(44, 24, 16, 0.7); /* 使用深棕色作为遮罩 */
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    padding: 0 2rem;
}

.hero-content h1 {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-content p {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    line-height: 1.6;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--color-brown-dark);
    padding: 1rem 2.5rem;
    border-radius: 4px;
    font-size: 1.25rem;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.2s ease;
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text);
    padding: 1rem 2.5rem;
    border: 2px solid var(--color-text);
    border-radius: 4px;
    font-size: 1.25rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-primary:hover,
.btn-secondary:hover {
    transform: scale(1.05);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-content p {
        font-size: 1.25rem;
    }

    .cta-buttons {
        flex-direction: column;
        gap: 1rem;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        padding: 0.875rem 2rem;
    }
}

.video-section {
    padding: 4rem 2rem;
    background-color: var(--color-brown-medium);
}

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

.video-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    padding: 0 1rem;
}

.video-container {
    width: 100%;
    position: relative;
}

/* 创建16:9的视频容器 */
.video-container::before {
    content: "";
    display: block;
    padding-top: 56.25%; /* 16:9 宽高比 */
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.video-container h3 {
    color: var(--color-text);
    text-align: center;
    margin-top: 1rem;
    font-size: 1.25rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .video-section {
        padding: 3rem 1rem;
    }

    .section-title {
        font-size: 2rem;
        margin-bottom: 2rem;
    }

    .video-grid {
        grid-template-columns: 1fr; /* 手机端单列显示 */
        gap: 2rem;
    }
}

/* 平板设备的优化 */
@media (min-width: 769px) and (max-width: 1024px) {
    .video-grid {
        gap: 1.5rem;
        padding: 0;
    }
}

/* 确保在较小的设备上有适当的间距 */
@media (max-width: 480px) {
    .video-section {
        padding: 2rem 1rem;
    }

    .video-grid {
        gap: 1.5rem;
    }
}

.features {
    padding: 4rem 2rem;
    background-color: var(--color-brown-medium);
}

.feature-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.feature-item {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.feature-item:nth-child(even) {
    flex-direction: row-reverse;
}

.feature-image {
    flex: 1;
}

.feature-image img {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.feature-content {
    flex: 1;
    color: var(--color-text);
}

.feature-content h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--color-accent);
}

.feature-content p {
    font-size: 1.1rem;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .feature-item {
        flex-direction: column !important;
        text-align: center;
    }
    
    .feature-content h3 {
        font-size: 1.5rem;
    }
}

.seo-content {
    background-color: var(--color-brown-light);
    padding: 4rem 2rem;
    color: var(--color-text);
}

.content-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

.content-wrapper h2 {
    color: var(--color-accent);
    font-size: 2.5rem;
    margin: 3rem 0 1.5rem;
    font-weight: 700;
}

.content-wrapper h3 {
    font-size: 1.8rem;
    margin: 2rem 0 1rem;
    color: var(--color-text);
    font-weight: 600;
}

.content-wrapper h4 {
    font-size: 1.4rem;
    margin: 1.5rem 0 0.8rem;
    color: var(--color-accent);
    font-weight: 500;
}

.content-wrapper p {
    color: var(--color-text-secondary);
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
}

.feature-list li {
    margin: 1rem 0;
    padding-left: 2rem;
    position: relative;
    color: var(--color-text-secondary);
}

.feature-list li::before {
    content: "•";
    color: var(--color-accent);
    position: absolute;
    left: 0;
    font-size: 1.2rem;
}

.faq-container {
    margin-top: 2rem;
}

.faq-item {
    background: rgba(44, 24, 16, 0.3);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(212, 160, 100, 0.1);
}

.faq-item h4 {
    color: var(--color-accent);
    margin-bottom: 1rem;
}

.faq-item p {
    color: var(--color-text-secondary);
}

.faq-item ul {
    list-style: disc;
    margin-left: 1.5rem;
    margin-top: 0.5rem;
    color: var(--color-text-secondary);
}

.faq-item ul li {
    margin-bottom: 0.5rem;
}

.content-wrapper a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

.content-wrapper a:hover {
    color: #E8B77D;
}

/* 响应式设计优化 */
@media (max-width: 768px) {
    .seo-content {
        padding: 2rem 1rem;
    }

    .content-wrapper h2 {
        font-size: 2rem;
    }

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

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

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

    .faq-item {
        padding: 1rem;
    }
}

/* 打印样式优化 */
@media print {
    .seo-content {
        background: white;
        color: black;
    }

    .content-wrapper h2,
    .content-wrapper h3,
    .content-wrapper h4 {
        color: #2C1810;
    }

    .faq-item {
        border: 1px solid #ccc;
        break-inside: avoid;
    }
}