/* 元宇宙页面样式 */

/* 整体背景 */
body {
    background: linear-gradient(135deg, #1a0a3f 0%, #2a1a4f 50%, #1a0a3f 100%);
    background-attachment: fixed;
    min-height: 100vh;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(102, 126, 234, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(102, 126, 234, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
}

body > * {
    position: relative;
    z-index: 1;
}

/* 视频展示区域 */
.video-showcase {
    background: transparent;
    padding: 5rem 0 4rem;
    position: relative;
    margin-top: 4.5rem;
}

.showcase-header {
    text-align: center;
    margin-bottom: 2rem;
}

.showcase-header .section-title {
    color: white;
}

.showcase-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 2px;
    margin-top: -1.5rem;
    margin-bottom: 0.8rem;
    text-transform: uppercase;
}

.showcase-description {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.95);
    max-width: 900px;
    margin: 0 auto;
    line-height: 1.6;
}

.featured-video {
    max-width: 1200px;
    margin: 0 auto;
    background: transparent;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    transition: all 0.4s ease;
}

.featured-video:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.4);
}

.video-wrapper {
    position: relative;
    width: 100%;
    padding-bottom: 60%; /* 增加高度以容纳控制条 */
    background: #000;
    overflow: hidden;
}

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

.intro-section {
    text-align: center;
    max-width: 900px;
    margin: 0 auto 2rem;
}

.intro-section .section-title {
    color: white;
}

.intro-text {
    font-size: 0.95rem;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.9);
}

.features-section {
    margin-bottom: 2rem;
}

.features-section .section-title {
    color: white;
}

/* 缩小卡片尺寸 */
.features-section .card-grid {
    grid-template-columns: repeat(6, 1fr);
    gap: 1rem;
}

.features-section .card {
    background: rgba(255, 255, 255, 0.95);
}

.features-section .card-image {
    min-height: 120px !important;
}

.features-section .card-content {
    padding: 1rem;
}

.features-section .card-title {
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.features-section .card-text {
    font-size: 0.75rem;
    line-height: 1.4;
    margin-bottom: 0.5rem;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin-top: 0.5rem;
}

.feature-list li {
    font-size: 0.7rem;
    padding: 0.2rem 0;
    color: var(--text-light);
    position: relative;
    padding-left: 1rem;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 0.7rem;
}

.tech-section {
    padding: 2rem 0;
    background: rgba(255, 255, 255, 0.1);
    margin-left: -2rem;
    margin-right: -2rem;
    padding-left: 2rem;
    padding-right: 2rem;
    margin-bottom: 2rem;
}

.tech-section .section-title {
    color: white;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 1rem;
    margin-top: 1.5rem;
}

.tech-card {
    text-align: center;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.tech-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.tech-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.tech-card h3 {
    font-size: 0.95rem;
    margin-bottom: 0.4rem;
    color: var(--text-dark);
}

.tech-card p {
    color: var(--text-light);
    line-height: 1.4;
    font-size: 0.8rem;
}

.scenarios-section {
    margin-top: 3rem;
}

.scenarios-section .section-title {
    color: white;
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.scenario-item {
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.scenario-item:hover {
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    background: rgba(255, 255, 255, 0.2);
}

.scenario-item h3 {
    font-size: 1.2rem;
    margin-bottom: 0.6rem;
    color: white;
}

.scenario-item p {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.5;
    font-size: 0.9rem;
}

/* FitNight推广区 */
.fitnight-promo {
    padding: 4rem 0;
    margin: 3rem 0;
}

.promo-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    padding: 0 2rem;
}

.promo-content .promo-image {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    transition: transform 0.4s ease;
}

.promo-content .promo-image:hover {
    transform: scale(1.02);
}

.promo-text {
    color: white;
}

.promo-title {
    font-size: 2.2rem;
    margin-bottom: 1.5rem;
    color: white;
    font-weight: 600;
}

.promo-description {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.9);
}

.promo-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.promo-feature {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.95);
}

.feature-icon {
    font-size: 1.8rem;
}

.promo-website {
    font-size: 1rem;
    color: #667eea;
    font-weight: 600;
}

.cta-section {
    background: transparent;
    color: var(--white);
    text-align: center;
    padding: 2.5rem 2rem;
    margin-top: 2rem;
    border-top: none;
}

.cta-section h2 {
    font-size: 2.2rem;
    margin-bottom: 1rem;
    color: white;
}

.cta-section p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    color: rgba(255, 255, 255, 0.95);
}

@media (max-width: 1400px) {
    .featured-video {
        max-width: 1000px;
    }

    .features-section .card-grid,
    .tech-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .featured-video {
        max-width: 100%;
    }

    .features-section .card-grid,
    .tech-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .promo-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .video-showcase {
        padding: 4rem 0 3rem;
        margin-top: 4rem;
    }

    .showcase-header {
        margin-bottom: 2rem;
    }

    .showcase-description {
        font-size: 0.95rem;
        padding: 0 1rem;
    }

    .features-section .card-grid,
    .tech-grid {
        grid-template-columns: 1fr;
    }

    .cta-section h2 {
        font-size: 1.8rem;
    }

    .promo-title {
        font-size: 1.8rem;
    }

    .promo-description {
        font-size: 1rem;
    }

    .promo-feature {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .video-showcase {
        padding: 3rem 0 2rem;
    }

    .features-section .card-image {
        min-height: 100px !important;
    }
}