/* 座位管理系统首页样式 */

/* Banner区域 */
.seat-banner {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 120px 0 80px;
    color: #fff;
    min-height: 600px;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.seat-banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.seat-banner-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.banner-content {
    animation: fadeInLeft 1s ease-out;
}

.banner-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.banner-subtitle {
    font-size: 24px;
    font-weight: 400;
    margin-bottom: 30px;
    opacity: 0.9;
}

.banner-description {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 40px;
    opacity: 0.85;
}

.banner-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.btn-primary, .btn-secondary, .btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: #fff;
    color: #667eea;
}

.btn-primary:hover {
    background: #f0f0f0;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

.btn-secondary {
    background: rgba(255,255,255,0.2);
    color: #fff;
    border: 2px solid rgba(255,255,255,0.3);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.3);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: #fff;
    border: 2px solid rgba(255,255,255,0.5);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: #fff;
}

/* 手机演示区域 */
.banner-image {
    animation: fadeInRight 1s ease-out;
}

.phone-mockup {
    position: relative;
    width: 300px;
    height: 600px;
    margin: 0 auto;
    background: #1a1a1a;
    border-radius: 30px;
    padding: 20px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #fff;
    border-radius: 20px;
    padding: 20px;
    box-sizing: border-box;
}

.seat-demo {
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.demo-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 30px;
    color: #333;
}

.demo-seats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    width: 100%;
}

.seat-item {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-weight: 600;
    font-size: 18px;
    transition: all 0.3s ease;
}

.seat-item.available {
    background: #e8f5e9;
    color: #4caf50;
    border: 2px solid #4caf50;
}

.seat-item.selected {
    background: #667eea;
    color: #fff;
    border: 2px solid #667eea;
    transform: scale(1.1);
}

.seat-item.occupied {
    background: #ffebee;
    color: #f44336;
    border: 2px solid #f44336;
    opacity: 0.6;
}

/* 通用区域样式 */
.section {
    padding: 80px 0;
}

.bg-white {
    background: #fff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 36px;
    font-weight: 700;
    color: #333;
    margin-bottom: 15px;
}

.section-title p {
    font-size: 18px;
    color: #666;
}

/* 功能卡片区域 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.feature-card {
    background: #fff;
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.15);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.feature-icon i {
    font-size: 40px;
    color: #fff;
}

.feature-card h3 {
    font-size: 24px;
    font-weight: 600;
    color: #333;
    margin-bottom: 16px;
}

.feature-card > p {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 24px;
}

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

.feature-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
    font-size: 15px;
    color: #555;
}

.feature-list i {
    color: #4caf50;
    font-size: 18px;
}

/* 流程步骤区域 */
.process-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px;
}

.step-item {
    flex: 1;
    min-width: 200px;
    max-width: 280px;
    text-align: center;
    position: relative;
}

.step-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    margin: 0 auto 20px;
}

.step-icon {
    width: 80px;
    height: 80px;
    background: #f5f5f5;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: all 0.3s ease;
}

.step-item:hover .step-icon {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transform: scale(1.1);
}

.step-item:hover .step-icon i {
    color: #fff;
}

.step-icon i {
    font-size: 40px;
    color: #667eea;
    transition: all 0.3s ease;
}

.step-item h4 {
    font-size: 20px;
    font-weight: 600;
    color: #333;
    margin-bottom: 12px;
}

.step-item p {
    font-size: 15px;
    color: #666;
    line-height: 1.6;
}

.step-arrow {
    font-size: 32px;
    color: #ccc;
}

/* 优势区域 */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.advantage-item {
    text-align: center;
    padding: 30px 20px;
}

.advantage-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.advantage-icon i {
    font-size: 32px;
    color: #fff;
}

.advantage-item h4 {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 12px;
}

.advantage-item p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* 应用场景区域 */
.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.scenario-card {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.scenario-card:hover {
    border-color: #667eea;
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.2);
}

.scenario-icon {
    width: 60px;
    height: 60px;
    background: #f5f5f5;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: all 0.3s ease;
}

.scenario-card:hover .scenario-icon {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.scenario-card:hover .scenario-icon i {
    color: #fff;
}

.scenario-icon i {
    font-size: 28px;
    color: #667eea;
    transition: all 0.3s ease;
}

.scenario-card h4 {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
}

.scenario-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

/* CTA区域 */
.seat-cta {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    text-align: center;
}

.cta-content h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 15px;
}

.cta-content p {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

/* 动画效果 */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 响应式设计 */
@media (max-width: 968px) {
    .seat-banner-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .banner-title {
        font-size: 36px;
    }
    
    .banner-subtitle {
        font-size: 20px;
    }
    
    .phone-mockup {
        width: 250px;
        height: 500px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .advantages-grid,
    .scenarios-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .process-steps {
        flex-direction: column;
    }
    
    .step-arrow {
        transform: rotate(90deg);
    }
}

@media (max-width: 640px) {
    .seat-banner {
        padding: 80px 0 60px;
        min-height: auto;
    }
    
    .banner-title {
        font-size: 28px;
    }
    
    .banner-subtitle {
        font-size: 18px;
    }
    
    .section {
        padding: 50px 0;
    }
    
    .section-title h2 {
        font-size: 28px;
    }
    
    .advantages-grid,
    .scenarios-grid {
        grid-template-columns: 1fr;
    }
    
    .banner-buttons,
    .cta-buttons {
        flex-direction: column;
    }
    
    .btn-primary,
    .btn-secondary,
    .btn-outline {
        width: 100%;
        justify-content: center;
    }
}

/* 教程区域样式 */
.seat-tutorials {
    padding: 80px 0;
}

.tutorial-tabs {
    margin-bottom: 30px;
}

.tab-nav {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
}

.tab-btn {
    padding: 12px 30px;
    border: 2px solid #667eea;
    background: transparent;
    color: #667eea;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-btn:hover,
.tab-btn.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border-color: transparent;
}

.tutorial-content {
    background: #f8f9fa;
    border-radius: 16px;
    padding: 30px;
}

.tutorial-type-tabs {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
    border-bottom: 2px solid #dee2e6;
    padding-bottom: 15px;
}

.type-tab {
    padding: 8px 20px;
    color: #666;
    font-weight: 500;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    margin-bottom: -17px;
    transition: all 0.3s;
}

.type-tab:hover,
.type-tab.active {
    color: #667eea;
    border-bottom-color: #667eea;
}

.tutorial-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.tutorial-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    cursor: pointer;
}

.tutorial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.tutorial-card-cover {
    width: 100%;
    height: 160px;
    object-fit: cover;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.tutorial-card-cover.video-cover {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tutorial-card-cover.video-cover::after {
    content: '▶';
    font-size: 40px;
    color: #fff;
    background: rgba(0,0,0,0.5);
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tutorial-card-body {
    padding: 15px;
}

.tutorial-card-title {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.tutorial-card-type {
    font-size: 12px;
    color: #667eea;
    background: rgba(102,126,234,0.1);
    padding: 3px 10px;
    border-radius: 12px;
    display: inline-block;
}

.loading-hint {
    text-align: center;
    color: #999;
    padding: 40px;
    font-size: 14px;
}

.no-data-hint {
    text-align: center;
    color: #999;
    padding: 60px 20px;
}

.no-data-hint i {
    font-size: 50px;
    color: #ddd;
    display: block;
    margin-bottom: 15px;
}

/* 教程弹窗样式 */
.tutorial-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.7);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.tutorial-modal-content {
    background: #fff;
    border-radius: 16px;
    max-width: 800px;
    max-height: 90vh;
    overflow: auto;
    position: relative;
    width: 100%;
}

.tutorial-modal-header {
    padding: 20px;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    background: #fff;
    z-index: 1;
}

.tutorial-modal-title {
    font-size: 20px;
    font-weight: 600;
    color: #333;
}

.tutorial-modal-close {
    width: 36px;
    height: 36px;
    border: none;
    background: #f5f5f5;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #666;
}

.tutorial-modal-close:hover {
    background: #e0e0e0;
}

.tutorial-modal-body {
    padding: 20px;
}

.tutorial-modal-body img {
    max-width: 100%;
    height: auto;
}

.tutorial-modal-body video {
    width: 100%;
    max-height: 500px;
}

@media (max-width: 768px) {
    .tab-nav {
        flex-direction: column;
        align-items: center;
    }
    
    .tab-btn {
        width: 100%;
        max-width: 200px;
    }
    
    .tutorial-list {
        grid-template-columns: 1fr;
    }
    
    .tutorial-type-tabs {
        justify-content: center;
    }
}