/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

/* 头部样式 */
header {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 2rem;
    text-align: center;
}

.logo {
    font-size: 2rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* 主要内容区域 */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* 广告位卡片样式 */
.ad-positions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.ad-card {
    background: white;
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

/* 广告预览图片样式 */
.ad-preview {
    position: relative;
    margin: 1rem 0;
    background: #f0f0f0;
    height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 5px;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.ad-preview:hover {
    transform: scale(1.02);
}

.ad-preview a {
    display: block;
    width: 100%;
    height: 100%;
    text-decoration: none;
}

.ad-preview img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.preview-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.ad-preview:hover .preview-overlay {
    opacity: 1;
}

.preview-hint {
    color: white;
    font-size: 1.2em;
    margin-bottom: 10px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.ad-dimensions {
    color: white;
    font-size: 0.9em;
    background: rgba(0, 0, 0, 0.6);
    padding: 4px 8px;
    border-radius: 4px;
}

/* 预览模态框样式 */
.preview-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease;
    display: none;
    align-items: center;
    justify-content: center;
}

.preview-modal.show {
    opacity: 1;
}

.preview-modal-content {
    position: relative;
    max-width: 90%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
}

.preview-modal-img {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: 8px;
}

.preview-modal-info {
    margin-top: 20px;
    color: #333;
    text-align: center;
}

.preview-modal-title {
    font-size: 1.2em;
    font-weight: bold;
    margin-bottom: 8px;
}

.preview-modal-dimensions {
    font-size: 0.9em;
    color: #666;
}

.preview-close {
    position: absolute;
    top: -40px;
    right: 0;
    color: white;
    font-size: 35px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
}

.preview-close:hover {
    color: #ff4444;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .preview-modal-content {
        max-width: 95%;
        padding: 10px;
    }
    
    .preview-modal-img {
        max-height: 70vh;
    }
    
    .preview-hint {
        font-size: 1em;
    }
    
    .ad-dimensions {
        font-size: 0.8em;
    }
}

.ad-stats {
    margin: 1rem 0;
}

.ad-stats p {
    margin: 0.5rem 0;
    font-size: 1.1rem;
}

.note {
    color: #666;
    font-size: 0.9rem;
    font-style: italic;
}

.booking-options {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.booking-options .book-btn {
    flex: 1;
}

.book-btn {
    background: #1e3c72;
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1.1rem;
    transition: background 0.3s ease;
}

.book-btn:hover {
    background: #2a5298;
}

/* 广告效果数据区域 */
.ad-stats {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    margin-bottom: 3rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 1.5rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 8px;
}

.stat-item h3 {
    color: #666;
    margin-bottom: 0.5rem;
}

.stat-item p {
    font-size: 1.5rem;
    font-weight: bold;
    color: #1e3c72;
}

/* 联系方式区域 */
.contact {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
}

.contact-info {
    margin: 1.5rem 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.wechat-contact {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.wechat-contact:hover {
    transform: translateY(-2px);
}

.wechat-qrcode {
    width: 100px;
    height: 100px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.wechat-qrcode img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.wechat-id {
    font-size: 1.1rem;
    color: #333;
    font-weight: 500;
    margin: 0;
    padding: 0.5rem 1rem;
    background: #fff;
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .contact {
        padding: 1.5rem;
    }
    
    .wechat-contact {
        padding: 1rem;
    }
    
    .wechat-qrcode {
        width: 90px;
        height: 90px;
    }
    
    .wechat-id {
        font-size: 1rem;
    }
}

/* 页脚样式 */
footer {
    text-align: center;
    padding: 2rem;
    background: #1e3c72;
    color: white;
    margin-top: 3rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .ad-positions {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
    }
    
    .booking-options {
        flex-direction: column;
    }
}

/* 广告限制说明样式 */
.ad-restrictions {
    background-color: #fff8f8;
    border: 1px solid #ffd6d6;
    border-radius: 8px;
    padding: 20px;
    margin: 20px auto;
    max-width: 800px;
}

.ad-restrictions h2 {
    color: #d32f2f;
    margin-top: 0;
    font-size: 1.5em;
}

.ad-restrictions ul {
    list-style-type: none;
    padding-left: 20px;
}

.ad-restrictions li {
    position: relative;
    padding-left: 25px;
    margin-bottom: 8px;
}

.ad-restrictions li:before {
    content: "×";
    color: #d32f2f;
    position: absolute;
    left: 0;
    font-weight: bold;
}

.restriction-note {
    color: #666;
    font-style: italic;
    margin-top: 15px;
    font-size: 0.9em;
}

/* 广告位状态样式 */
.ad-status {
    margin: 10px 0;
    padding: 8px 12px;
    border-radius: 4px;
    text-align: center;
    font-weight: bold;
}

.status-available {
    color: #4caf50;
    background-color: #e8f5e9;
}

.status-booked {
    color: #f44336;
    background-color: #ffebee;
}

.status-booked .end-date {
    display: block;
    font-size: 0.9em;
    font-weight: normal;
    margin-top: 4px;
}