/* 首页专用样式 */

/* 英雄区域 */
.hero-section {
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 50px 20px;
    position: relative;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    transition: background-image 0.5s ease;
}

/* 背景选择器 */
.background-selector {
    position: absolute;
    top: 30px;
    right: 30px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 20px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    z-index: 10;
}

.background-selector h3 {
    margin-bottom: 15px;
    color: #333;
    font-size: 1.1rem;
}

.bg-options {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.bg-option {
    padding: 8px 15px;
    border: 2px solid #667eea;
    background: transparent;
    color: #667eea;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    font-weight: 500;
}

.bg-option:hover,
.bg-option.active {
    background: #667eea;
    color: white;
    transform: translateY(-2px);
}

/* 倒计时容器 */
.countdown-container {
    text-align: center;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(15px);
    padding: 50px;
    border-radius: 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    max-width: 800px;
    width: 100%;
    animation: fadeInUp 1s ease-out;
}



/* 一年倒计时标题 */
.year-countdown-header {
    text-align: center;
    margin-bottom: 40px;
}

.year-countdown-title {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.year-countdown-subtitle {
    font-size: 1.2rem;
    color: #666;
    font-style: italic;
    margin-bottom: 0;
}



/* 状态文本 */
.status-text {
    color: #666;
    font-size: 1rem;
    margin-top: 10px;
    font-style: italic;
}

.countdown-target h3 {
    font-size: 1.8rem;
    color: #333;
    font-weight: 600;
    margin-bottom: 10px;
}

/* 嵌入代码链接 */
.embed-link {
    margin-top: 20px;
    text-align: center;
}

.embed-btn {
    display: inline-block;
    padding: 10px 20px;
    background: linear-gradient(135deg, #17a2b8, #20c997);
    color: white;
    text-decoration: none;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(23, 162, 184, 0.4);
}

.embed-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(23, 162, 184, 0.6);
    color: white;
    text-decoration: none;
}

/* 分享按钮样式 */
.share-section {
    margin-top: 25px;
    padding-top: 20px;
    border-top: 2px solid rgba(102, 126, 234, 0.2);
}

.share-section h4 {
    color: #333;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 15px;
    text-align: center;
}

.share-buttons {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.share-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px 12px;
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.8rem;
    font-weight: 500;
    min-width: 60px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.share-icon {
    font-size: 1.2rem;
    margin-bottom: 4px;
}

.share-text {
    font-size: 0.7rem;
}

.wechat {
    background: linear-gradient(135deg, #07c160, #00d976);
    color: white;
}

.weibo {
    background: linear-gradient(135deg, #e6162d, #ff4757);
    color: white;
}

.qq {
    background: linear-gradient(135deg, #12b7f5, #1e90ff);
    color: white;
}

.qzone {
    background: linear-gradient(135deg, #ffa500, #ff8c00);
    color: white;
}

.copy-link {
    background: linear-gradient(135deg, #6c757d, #495057);
    color: white;
}

.facebook {
    background: linear-gradient(135deg, #1877f2, #42a5f5);
    color: white;
}

.twitter {
    background: linear-gradient(135deg, #1da1f2, #0d8bd9);
    color: white;
}

.linkedin {
    background: linear-gradient(135deg, #0077b5, #005885);
    color: white;
}

.telegram {
    background: linear-gradient(135deg, #0088cc, #006699);
    color: white;
}

/* 移动端优化 */
@media (max-width: 768px) {
    .share-buttons {
        gap: 8px;
    }
    
    .share-btn {
        padding: 8px 10px;
        min-width: 50px;
        font-size: 0.7rem;
    }
    
    .share-icon {
        font-size: 1rem;
    }
    
    .share-text {
        font-size: 0.6rem;
    }
    
    .share-section h4 {
        font-size: 0.9rem;
        margin-bottom: 12px;
    }
}

/* 完成消息样式 */
.completion-message {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    animation: fadeIn 0.3s ease-out;
}

.completion-content {
    background: white;
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: scaleIn 0.3s ease-out;
    max-width: 400px;
    width: 90%;
}

.completion-content h2 {
    font-size: 2rem;
    color: #28a745;
    margin-bottom: 15px;
    font-weight: 700;
}

.completion-content p {
    color: #666;
    margin-bottom: 25px;
    font-size: 1.1rem;
}

.completion-content button {
    padding: 12px 30px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border: none;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.completion-content button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes scaleIn {
    from { 
        opacity: 0;
        transform: scale(0.8);
    }
    to { 
        opacity: 1;
        transform: scale(1);
    }
}

.countdown-display {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.countdown-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 120px;
}

.countdown-number {
    font-size: 3.5rem;
    font-weight: 700;
    color: #667eea;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
    animation: pulse 2s infinite;
}

.countdown-label {
    font-size: 1.2rem;
    color: #666;
    margin-top: 10px;
    font-weight: 500;
}

.countdown-target h3 {
    font-size: 1.8rem;
    color: #333;
    font-weight: 600;
}

/* 特色功能区域 */
.features-section {
    padding: 80px 20px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.features-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: white;
    font-weight: 700;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #333;
    font-weight: 600;
}

.feature-card p {
    color: #666;
    margin-bottom: 25px;
    line-height: 1.6;
}

.feature-btn {
    display: inline-block;
    padding: 12px 25px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.feature-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

/* 背景图片样式 */
.bg-default {
    background-image: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.bg-nature {
    background-image: url('https://images.unsplash.com/photo-1506905925346-21bda4d32df4?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80');
}

.bg-city {
    background-image: url('https://images.unsplash.com/photo-1449824913935-59a10b8d2000?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80');
}

.bg-space {
    background-image: url('https://images.unsplash.com/photo-1462331940025-496dfbfc7564?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80');
}

.bg-ocean {
    background-image: url('https://images.unsplash.com/photo-1507525428034-b723cf961d3e?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80');
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-section {
        padding: 30px 15px;
        min-height: 70vh;
    }

    .background-selector {
        position: relative;
        top: auto;
        right: auto;
        margin-bottom: 30px;
        width: 100%;
        max-width: 400px;
    }

    .countdown-container {
        padding: 30px 20px;
    }

    .year-countdown-title {
        font-size: 2.2rem;
    }

    .year-countdown-subtitle {
        font-size: 1rem;
    }

    .countdown-display {
        gap: 20px;
    }

    .countdown-item {
        min-width: 80px;
    }

    .countdown-number {
        font-size: 2.5rem;
    }

    .countdown-label {
        font-size: 1rem;
    }

    .features-section {
        padding: 50px 15px;
    }

    .features-section h2 {
        font-size: 2rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .feature-card {
        padding: 30px 20px;
    }

    /* 移动端完成消息 */
    .completion-content {
        padding: 30px 20px;
        margin: 20px;
    }

    .completion-content h2 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .countdown-display {
        gap: 15px;
    }

    .countdown-item {
        min-width: 60px;
    }

    .countdown-number {
        font-size: 2rem;
    }

    .countdown-label {
        font-size: 0.9rem;
    }
}

/* SEO内容区域样式 */
.seo-content-section {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 60px 20px;
    margin-top: 50px;
}

.seo-content-section .container {
    max-width: 1000px;
    margin: 0 auto;
}

.seo-content-section h2 {
    font-size: 2.2rem;
    color: #333;
    margin-bottom: 20px;
    font-weight: 700;
    text-align: center;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.seo-content-section h3 {
    font-size: 1.6rem;
    color: #333;
    margin: 30px 0 15px 0;
    font-weight: 600;
    border-left: 4px solid #667eea;
    padding-left: 15px;
}

.seo-content-section p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.seo-content-section ul {
    margin: 20px 0;
    padding-left: 0;
    list-style: none;
}

.seo-content-section li {
    color: #666;
    line-height: 1.8;
    margin-bottom: 12px;
    padding-left: 25px;
    position: relative;
    font-size: 1rem;
}

.seo-content-section li::before {
    content: "•";
    color: #667eea;
    font-weight: bold;
    position: absolute;
    left: 0;
    top: 0;
}

.seo-content-section strong {
    color: #333;
    font-weight: 600;
}

/* FAQ样式 */
.faq-section {
    margin-top: 30px;
}

.faq-item {
    background: rgba(102, 126, 234, 0.05);
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 15px;
    border-left: 4px solid #667eea;
}

.faq-item h4 {
    color: #333;
    font-size: 1.2rem;
    margin-bottom: 10px;
    font-weight: 600;
}

.faq-item p {
    color: #666;
    margin: 0;
    line-height: 1.6;
}

/* 移动端优化 */
@media (max-width: 768px) {
    .seo-content-section {
        padding: 40px 15px;
    }
    
    .seo-content-section h2 {
        font-size: 1.8rem;
    }
    
    .seo-content-section h3 {
        font-size: 1.4rem;
    }
    
    .seo-content-section p {
        font-size: 1rem;
    }
    
    .seo-content-section li {
        font-size: 0.95rem;
    }
    
    .faq-item {
        padding: 15px;
    }
    
    .faq-item h4 {
        font-size: 1.1rem;
    }
}