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

html {
    font-size: 16px;
}

body {
    font-family: 'Noto Sans CJK SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 容器 */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 */
.navbar {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 0 20px;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 40px;
    width: auto;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1976D2;
    margin-left: 10px;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 25px;
}

.nav-links a {
    text-decoration: none;
    color: #666;
    font-weight: 500;
    font-size: 1rem;
    padding: 5px 0;
    position: relative;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #1976D2;
}

.nav-links a.active {
    color: #1976D2;
    font-weight: 600;
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #1976D2;
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: #1976D2;
}

/* 主要内容区域 */
.main-content {
    flex: 1;
    padding: 40px 0;
}

.page-header {
    text-align: center;
    margin-bottom: 40px;
}

.page-header h1 {
    font-size: 2.2rem;
    color: #1976D2;
    margin-bottom: 15px;
}

.page-header p {
    color: #999;
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto;
}

/* 内容卡片 */
.content-card {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    padding: 40px;
    margin-bottom: 30px;
}

/* 首页特色区域 */
.hero {
    text-align: center;
    padding: 60px 0;
    background: linear-gradient(135deg, #64B5F6 0%, #1976D2 100%);
    color: white;
    border-radius: 8px;
    margin-bottom: 40px;
}

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.3rem;
    max-width: 800px;
    margin: 0 auto 30px;
    opacity: 0.9;
}

.btn {
    display: inline-block;
    background-color: #BBDEFB;
    color: #1976D2;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s;
    border: 2px solid #1976D2;
}

.btn:hover {
    background-color: #E3F2FD;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.btn-primary {
    background: linear-gradient(135deg, #64B5F6, #1976D2);
    color: white;
}

.btn-primary:hover {
    background-color: #1565C0;
}

/* 特色卡片 */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.feature-card {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    padding: 30px;
    text-align: center;
    transition: transform 0.3s;
}

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

.feature-card h3 {
    font-size: 1.5rem;
    color: #1976D2;
    margin-bottom: 15px;
}

.feature-card p {
    color: #999;
    margin-bottom: 20px;
}

.feature-icon {
    font-size: 2.5rem;
    color: #1976D2;
    margin-bottom: 20px;
}

/* 二维码区域 */
.qr-section {
    text-align: center;
    padding: 40px;
    background-color: #f5f5f5;
    border-radius: 8px;
    margin-top: 40px;
}

.qr-section h2 {
    font-size: 1.8rem;
    color: #1976D2;
    margin-bottom: 20px;
}

.qr-section p {
    color: #999;
    max-width: 600px;
    margin: 0 auto 30px;
}

.qr-code {
    max-width: 250px;
    margin: 0 auto;
}

.qr-code img {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 文档内容样式 */
.document-content h1 {
    font-size: 2.2rem;
    margin-bottom: 1.5rem;
    color: #1976D2;
    padding-bottom: 15px;
    border-bottom: 2px solid #f5f5f5;
}

.document-content h2 {
    font-size: 1.6rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: #1976D2;
    padding-bottom: 8px;
    border-bottom: 1px solid #f5f5f5;
}

.document-content h3 {
    font-size: 1.3rem;
    margin-top: 1.5rem;
    margin-bottom: 0.8rem;
    color: #1976D2;
}

.document-content p {
    margin-bottom: 1rem;
    text-align: justify;
}

.document-content ul, .document-content ol {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.document-content li {
    margin-bottom: 0.5rem;
}

.document-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 0.95rem;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.document-content th {
    background-color: #1976D2;
    color: white;
    font-weight: 600;
    text-align: left;
    padding: 14px 12px;
    border: 1px solid #ddd;
}

.document-content td {
    padding: 12px;
    border: 1px solid #ddd;
    vertical-align: top;
}

.document-content tr:nth-child(even) {
    background-color: #f5f5f5;
}

.document-content tr:hover {
    background-color: #E3F2FD;
}

.meta-info {
    background-color: #f5f5f5;
    border-left: 4px solid #1976D2;
    padding: 15px 20px;
    margin-bottom: 25px;
    border-radius: 0 4px 4px 0;
}

.meta-info p {
    margin-bottom: 5px;
}

.notice {
    background: linear-gradient(135deg, #FFF9C4, #FFECB3);
    border-left: 4px solid #FFC107;
    padding: 15px 20px;
    margin: 20px 0;
    border-radius: 0 4px 4px 0;
}

.notice strong {
    color: #E91E63;
}

/* 页脚 */
.footer {
    background: linear-gradient(135deg, #E3F2FD, #BBDEFB);
    color: #333;
    padding: 40px 0;
    margin-top: 60px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.footer-section {
    flex: 1;
    min-width: 250px;
    margin-bottom: 30px;
}

.footer-section h3 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: #1976D2;
}

.footer-section p {
    color: #666;
    margin-bottom: 15px;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: #1976D2;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #1976D2;
    color: #666;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .logo {
        margin-bottom: 15px;
    }
    
    .nav-links {
        display: none;
        width: 100%;
        flex-direction: column;
        margin-top: 15px;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-links li {
        margin: 10px 0;
    }
    
    .menu-toggle {
        display: block;
        position: absolute;
        right: 20px;
        top: 20px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .content-card {
        padding: 20px;
    }
    
    .document-content h1 {
        font-size: 1.8rem;
    }
    
    .document-content h2 {
        font-size: 1.4rem;
    }
    
    .document-content table {
        font-size: 0.85rem;
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
    
    .document-content th, .document-content td {
        padding: 8px 10px;
    }
}

/* 打印样式 */
@media print {
    body {
        background-color: white;
    }
    
    .navbar, .footer, .qr-section {
        display: none;
    }
    
    .content-card {
        box-shadow: none;
        padding: 0;
    }
}
/* 创意配色 - 差异化样式 */
.donation-text {
    color: #E91E63;
    font-weight: 700;
    font-size: 1.1em;
}

.free-tag {
    display: inline-block;
    background: linear-gradient(135deg, #4CAF50, #45a049);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.monthly-bg {
    background: linear-gradient(135deg, #FFF3E0, #FFE0B2);
    padding: 15px;
    border-radius: 8px;
    border: 1px solid #FFC107;
}

.tag-bg {
    background: linear-gradient(135deg, #F3E5F5, #E1BEE7);
    padding: 8px 12px;
    border-radius: 4px;
    color: #7B1FA2;
    font-weight: 500;
}

.wechat-btn {
    background: linear-gradient(135deg, #07C160, #06AE56);
    color: white;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    transition: all 0.3s;
}

.wechat-btn:hover {
    background: linear-gradient(135deg, #06AE56, #059C4C);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.pink-card {
    background: linear-gradient(135deg, #FFE5E5, #FFF0F0);
    border-left: 4px solid #FF6B9D;
    padding: 20px;
    border-radius: 8px;
}

/* 粉色列表样式 */
.pink-list {
    list-style: none;
    padding-left: 0;
}

.pink-list li {
    position: relative;
    padding-left: 30px;
    margin-bottom: 12px;
    color: #333;
}

.pink-list li::before {
    content: "❤";
    position: absolute;
    left: 0;
    color: #FF6B9D;
    font-size: 1.2rem;
}

/* 公益元素红色系配色优化 */
.charity-heading {
    color: #E91E63;
    font-weight: 700;
    margin-bottom: 15px;
}

.charity-red-gradient {
    background: linear-gradient(135deg, #FF6B6B, #FF8E53);
    color: white;
    padding: 8px 15px;
    border-radius: 6px;
    font-weight: 600;
    box-shadow: 0 3px 6px rgba(255, 107, 107, 0.2);
}

.charity-strong {
    color: #FF6B9D;
    font-weight: 700;
}

.charity-text {
    color: #333;
    font-weight: 500;