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

:root {
    --text-color: #1d1d1f;
    --text-secondary: #6e6e73;
    --bg-light: #f5f5f7;
    --bg-white: #fff;
    --accent-blue: #22B5AF;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    color: var(--text-color);
    background: var(--bg-white);
    line-height: 1.6;
}

.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    height: 44px;
    display: flex;
    align-items: center;
}

.nav-content {
    width: 100%;
    padding: 0 40px;
    display: flex;
    justify-content: center;
}

.logo {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-color);
}

.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(180deg, #f5f5f7 0%, #ffffff 100%);
    padding: 80px 40px;
    text-align: center;
    margin-top: 44px;
}

.hero-content {
    max-width: 900px;
}

.hero-title {
    font-size: 64px;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 28px;
    font-weight: 400;
    color: var(--text-secondary);
    line-height: 1.3;
}

.quick-overview {
    padding: 80px 40px;
    background: var(--bg-white);
}

.overview-content {
    max-width: 1200px;
    margin: 0 auto;
}

.overview-content h2 {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 60px;
    text-align: center;
}

.overview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.overview-item {
    text-align: center;
}

.overview-item h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
}

.overview-item p {
    font-size: 16px;
    color: var(--text-secondary);
}

.feature-section {
    padding: 100px 40px;
    background: var(--bg-white);
    text-align: center;
}

.feature-content {
    max-width: 900px;
    margin: 0 auto;
}

.feature-title {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 20px;
}

.feature-subtitle {
    font-size: 24px;
    font-weight: 400;
    color: var(--text-secondary);
}

.market-cards-section {
    padding: 80px 40px;
    background: var(--bg-light);
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    max-width: 1200px;
    margin: 0 auto;
}

.market-card-item {
    background: var(--bg-white);
    padding: 40px;
    border-radius: 12px;
    text-align: center;
}

.card-content h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
}

.card-highlight {
    font-size: 24px;
    font-weight: 600;
    color: var(--accent-blue);
    margin-bottom: 8px;
}

.card-desc {
    font-size: 14px;
    color: var(--text-secondary);
}

.xr-definition-section {
    padding: 80px 40px;
    background: var(--bg-white);
    text-align: center;
}

.definition-content {
    max-width: 900px;
    margin: 0 auto;
}

.definition-content h2 {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 30px;
}

.definition-content p {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.policy-preview-section {
    padding: 80px 40px;
    background: var(--bg-white);
}

.policy-preview-content {
    max-width: 900px;
    margin: 0 auto;
}

.policy-preview-content h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 24px;
    text-align: center;
}

.policy-card {
    display: block;
    background: var(--bg-white);
    border-radius: 12px;
    padding: 32px;
    text-decoration: none;
    color: var(--text-color);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(0, 0, 0, 0.06);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.policy-card:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    transform: translateY(-2px);
}

.policy-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.policy-source {
    font-size: 13px;
    font-weight: 600;
    color: #c0392b;
}

.policy-date {
    font-size: 13px;
    color: var(--text-secondary);
}

.policy-card-title {
    font-size: 22px;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 20px;
    color: var(--text-color);
}

.policy-card-body p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

.policy-card-body ul {
    list-style: none;
    padding: 0;
}

.policy-card-body li {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    padding: 8px 0 8px 20px;
    position: relative;
    border-bottom: 1px solid var(--bg-light);
}

.policy-card-body li:last-child {
    border-bottom: none;
}

.policy-card-body li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent-blue);
    font-weight: bold;
    font-size: 18px;
}

.policy-card-footer {
    margin-top: 20px;
    text-align: right;
}

.policy-link-text {
    font-size: 15px;
    font-weight: 500;
    color: var(--accent-blue);
    transition: opacity 0.2s;
}

.policy-card:hover .policy-link-text {
    opacity: 0.7;
}

/* ===== C 端总览 ===== */
.c2c-overview-section {
    padding: 80px 40px;
    background: var(--bg-light);
}

.c2c-overview-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.c2c-overview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 40px;
}

.c2c-overview-item {
    background: var(--bg-white);
    padding: 32px;
    border-radius: 12px;
    text-align: center;
}

.c2c-overview-item h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--accent-blue);
}

.c2c-overview-item p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.c2c-overview-images {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.c2c-overview-images img {
    max-width: 100%;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

/* ===== C 端游戏项目展示 ===== */
.game-showcase {
    padding: 80px 40px;
}

.game-showcase--light {
    background: var(--bg-white);
}

.game-showcase--dark {
    background: var(--bg-light);
}

.game-showcase-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.game-showcase-header {
    margin-bottom: 40px;
}

.game-showcase-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--bg-white);
    background: var(--accent-blue);
    padding: 4px 14px;
    border-radius: 20px;
    margin-bottom: 16px;
}

.game-showcase-header h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 12px;
}

.game-showcase-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
}

.game-showcase-body {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

/* 媒体区域 - 全宽 */
.game-showcase-media {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.game-media-video {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    background: #000;
    max-width: 720px;
}

.game-media-video video {
    width: 100%;
    display: block;
    aspect-ratio: 16 / 9;
    object-fit: contain;
}

.game-media-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.game-media-gallery img {
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.game-media-gallery img:hover {
    transform: scale(1.03);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

/* 信息区域 - 网格排列，统一高度 */
.game-showcase-info {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.game-info-item {
    padding: 24px;
    border-radius: 8px;
    background: var(--bg-light);
    display: flex;
    flex-direction: column;
}

.game-showcase--dark .game-info-item {
    background: var(--bg-white);
}

.game-info-item h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--accent-blue);
    margin-bottom: 10px;
}

.game-info-item p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 荣誉卡片横跨整行 */
.game-info-award {
    grid-column: 1 / -1;
}

.game-info-award ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px 24px;
}

.game-info-award li {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    padding-left: 22px;
    position: relative;
}

.game-info-award li::before {
    content: '🏆';
    position: absolute;
    left: 0;
    font-size: 14px;
}

.b2b-overview-section {
    padding: 80px 40px;
    background: var(--bg-light);
}

.b2b-overview-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.b2b-overview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 40px;
}

.b2b-overview-item {
    background: var(--bg-white);
    padding: 32px;
    border-radius: 12px;
    text-align: center;
}

.b2b-overview-item h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--accent-blue);
}

.b2b-overview-item p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.b2b-overview-images {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.b2b-overview-images img {
    max-width: 100%;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

/* ===== B 端案例通用样式 ===== */
.case-block {
    padding: 80px 40px;
}

.case-block--light {
    background: var(--bg-white);
}

.case-block--dark {
    background: var(--bg-light);
}

.case-block-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.case-block-header {
    margin-bottom: 40px;
}

.case-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 600;
    color: var(--bg-white);
    background: var(--accent-blue);
    padding: 4px 14px;
    border-radius: 20px;
    margin-bottom: 16px;
}

.case-block-header h2 {
    font-size: 36px;
    font-weight: 700;
}

.case-block-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.case-block-details {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.case-block-details .case-detail-box {
    background: var(--bg-light);
    padding: 24px;
    border-radius: 8px;
}

.case-block--dark .case-block-details .case-detail-box {
    background: var(--bg-white);
}

.case-block-details .case-detail-box h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--accent-blue);
    margin-bottom: 8px;
}

.case-block-details .case-detail-box p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.case-block-images {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.case-block-images img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    background: var(--bg-light);
    min-height: 180px;
    object-fit: cover;
}

.team-section {
    padding: 80px 40px;
    background: var(--bg-light);
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 60px;
    max-width: 1200px;
    margin: 0 auto;
}

.team-member {
    background: var(--bg-white);
    padding: 40px;
    border-radius: 12px;
    text-align: center;
}

.team-member h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
}

.member-title {
    font-size: 16px;
    color: var(--accent-blue);
    font-weight: 500;
    margin-bottom: 24px;
    display: block;
}

.member-info {
    text-align: left;
}

.member-info p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    line-height: 1.6;
}

.footer {
    background: var(--bg-white);
    padding: 40px;
    text-align: center;
    border-top: 1px solid var(--bg-light);
    color: var(--text-secondary);
    font-size: 14px;
}

.beian-info {
    margin-top: 8px;
}

.beian-info a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    transition: color 0.2s;
}

.beian-info a:hover {
    color: var(--text-color);
}

.beian-icon {
    width: 16px;
    height: 16px;
}

@media (max-width: 1024px) {
    .hero-title {
        font-size: 48px;
    }
    
    .feature-title {
        font-size: 40px;
    }
    
    .overview-grid,
    .market-cards-section,
    .team-section,
    .b2b-overview-grid,
    .case-block-body,
    .c2c-overview-grid,
    .game-showcase-info,
    .game-media-gallery {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .navbar {
        height: 40px;
    }
    
    .hero-section {
        margin-top: 40px;
        padding: 60px 20px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 20px;
    }
    
    .feature-title {
        font-size: 32px;
    }
    
    .feature-subtitle {
        font-size: 18px;
    }
    
    section {
        padding: 60px 20px;
    }
    
    .overview-content h2,
    .definition-content h2,
    .case-block-header h2,
    .game-showcase-header h2 {
        font-size: 28px;
    }
    
    .team-member h3 {
        font-size: 22px;
    }
}