/* 继承首页的CSS变量和基础样式 */
        :root {
            --primary-black: #1a1a1a;
            --secondary-black: #2d2d2d;
            --light-gray: #f5f5f5;
            --medium-gray: #e0e0e0;
            --accent-gold: #d4af37;
            --dark-gold: #b8941f;
            --white: #ffffff;
            --text-dark: #333333;
            --text-medium: #666666;
            --text-light: #999999;
            --shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
            --shadow-heavy: 0 8px 24px rgba(0, 0, 0, 0.1);
            --border-radius: 8px;
            --transition: all 0.3s ease;
            --charity-green: #2e8b57; /* 新增慈善绿色 */
            --charity-light-green: rgba(46, 139, 87, 0.1);
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Open Sans', sans-serif;
            color: var(--text-dark);
            background-color: var(--white);
            line-height: 1.5;
            overflow-x: hidden;
            font-size: 14px;
        }
        
        h1, h2, h3, h4, h5 {
            font-family: 'Montserrat', sans-serif;
            font-weight: 600;
            color: var(--primary-black);
            line-height: 1.3;
        }
        
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 15px;
        }
        
        /* 头部导航 - 与首页一致 */
        header {
            background-color: var(--primary-black);
            box-shadow: var(--shadow);
            position: sticky;
            top: 0;
            z-index: 1000;
            width: 100%;
        }
        
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 0;
            max-width: 1200px;
            margin: 0 auto;
            width: 100%;
            padding-left: 15px;
            padding-right: 15px;
        }
        
        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            text-decoration: none;
        }
        
        .logo-icon {
            background-color: var(--accent-gold);
            color: var(--primary-black);
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }
        
        .logo-text {
            font-family: 'Montserrat', sans-serif;
            font-weight: 700;
            font-size: 20px;
            color: var(--accent-gold);
        }
        
        .logo-text span {
            color: var(--white);
        }
        
        .nav-links {
            display: flex;
            gap: 20px;
        }
        
        .nav-links a {
            text-decoration: none;
            color: var(--white);
            font-weight: 500;
            font-size: 14px;
            transition: var(--transition);
            position: relative;
            padding: 5px 0;
        }
        
        .nav-links a:hover {
            color: var(--accent-gold);
        }
        
        .nav-links a.active {
            color: var(--accent-gold);
            font-weight: 600;
        }
        
        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: var(--accent-gold);
        }
        
        .header-actions {
            display: flex;
            gap: 12px;
            align-items: center;
        }
        
        .language-selector {
            padding: 6px 10px;
            border: 1px solid rgba(212, 175, 55, 0.3);
            border-radius: var(--border-radius);
            background-color: transparent;
            font-size: 13px;
            cursor: pointer;
            color: var(--white);
            background-color: #1a1a1a;
        }
        
        .language-icon {
            display: none;
            background: none;
            border: none;
            font-size: 18px;
            color: var(--accent-gold);
            cursor: pointer;
            padding: 5px;
        }
        
        .mobile-nav-btn {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--accent-gold);
            cursor: pointer;
            padding: 5px;
            z-index: 1001;
        }
        
        /* 慈善页面特定样式 */
        
        /* 慈善英雄区域 */
        .charity-hero {
            background: linear-gradient(to right, var(--primary-black), var(--secondary-black));
            color: var(--white);
            padding: 60px 0;
            margin-bottom: 40px;
        }
        
        .charity-hero-content {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }
        
        .charity-hero h1 {
            color: var(--white);
            font-size: 36px;
            margin-bottom: 15px;
        }
        
        .charity-hero p {
            font-size: 18px;
            color: var(--text-light);
            margin-bottom: 25px;
        }
        
        .donation-highlight {
            background-color: rgba(212, 175, 55, 0.1);
            border: 1px solid rgba(212, 175, 55, 0.3);
            border-radius: var(--border-radius);
            padding: 20px;
            margin-top: 30px;
        }
        
        .donation-highlight h3 {
            color: var(--accent-gold);
            font-size: 20px;
            margin-bottom: 10px;
        }
        
        .donation-highlight p {
            color: var(--white);
            font-size: 16px;
            margin-bottom: 0;
        }
        
        .donation-percentage {
            font-size: 48px;
            font-weight: 700;
            color: var(--accent-gold);
            line-height: 1;
        }
        
        /* 慈善项目卡片 */
        .charity-projects {
            margin-bottom: 60px;
        }
        
        .section-title {
            font-size: 28px;
            margin-bottom: 30px;
            position: relative;
            padding-bottom: 10px;
        }
        
        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 3px;
            background-color: var(--accent-gold);
        }
        
        .projects-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
            gap: 30px;
            margin-bottom: 40px;
        }
        
        .project-card {
            background-color: var(--white);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--medium-gray);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        
        .project-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-heavy);
        }
        
        .project-image {
            height: 200px;
            width: 100%;
            object-fit: cover;
        }
        
        .project-content {
            padding: 25px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        
        .project-title {
            font-size: 20px;
            margin-bottom: 10px;
            color: var(--primary-black);
        }
        
        .project-category {
            display: inline-block;
            padding: 4px 12px;
            background-color: var(--charity-light-green);
            color: var(--charity-green);
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 15px;
            align-self: flex-start;
        }
        
        .project-description {
            color: var(--text-medium);
            margin-bottom: 20px;
            flex: 1;
        }
        
        .project-stats {
            display: flex;
            justify-content: space-between;
            border-top: 1px solid var(--light-gray);
            padding-top: 15px;
            margin-top: auto;
        }
        
        .stat-item {
            text-align: center;
        }
        
        .stat-value {
            font-size: 20px;
            font-weight: 700;
            color: var(--charity-green);
        }
        
        .stat-label {
            font-size: 12px;
            color: var(--text-medium);
        }
        
        /* 捐赠透明度区域 */
        .transparency-section {
            background-color: var(--light-gray);
            padding: 60px 0;
            margin-bottom: 60px;
        }
        
        .transparency-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        
        .transparency-text {
            padding-right: 20px;
        }
        
        .transparency-text h2 {
            font-size: 28px;
            margin-bottom: 20px;
        }
        
        .transparency-text p {
            color: var(--text-medium);
            margin-bottom: 20px;
        }
        
        .transparency-visual {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        
        .transparency-item {
            background-color: var(--white);
            border-radius: var(--border-radius);
            padding: 20px;
            box-shadow: var(--shadow);
        }
        
        .transparency-item h3 {
            font-size: 18px;
            margin-bottom: 10px;
            color: var(--primary-black);
        }
        
        /* 成果展示区域 */
        .impact-section {
            margin-bottom: 60px;
        }
        
        .impact-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-bottom: 40px;
        }
        
        .impact-stat {
            background-color: var(--white);
            border-radius: var(--border-radius);
            padding: 25px;
            text-align: center;
            box-shadow: var(--shadow);
            border-top: 4px solid var(--accent-gold);
        }
        
        .impact-stat .stat-number {
            font-size: 36px;
            font-weight: 700;
            color: var(--charity-green);
            line-height: 1;
            margin-bottom: 10px;
        }
        
        .impact-stat .stat-label {
            font-size: 14px;
            color: var(--text-medium);
        }
        
        .impact-gallery {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 20px;
        }
        
        .impact-image {
            border-radius: var(--border-radius);
            overflow: hidden;
            height: 250px;
        }
        
        .impact-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        
        .impact-image:hover img {
            transform: scale(1.05);
        }
        
        /* 合作伙伴区域 */
        .partners-section {
            background-color: var(--primary-black);
            color: var(--white);
            padding: 60px 0;
            margin-bottom: 60px;
        }
        
        .partners-section .section-title {
            color: var(--white);
        }
        
        .partners-section .section-title::after {
            background-color: var(--accent-gold);
        }
        
        .partners-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }
        
        .partner-card {
            background-color: var(--secondary-black);
            border-radius: var(--border-radius);
            padding: 25px;
            text-align: center;
            transition: var(--transition);
            border: 1px solid rgba(212, 175, 55, 0.2);
        }
        
        .partner-card:hover {
            transform: translateY(-5px);
            border-color: var(--accent-gold);
        }
        
        .partner-logo {
            height: 80px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 15px;
        }
        
        .partner-logo img {
            max-width: 100%;
            max-height: 80px;
        }
        
        .partner-name {
            font-size: 16px;
            color: var(--white);
        }
        
        /* 捐赠者感谢区域 */
        .donors-section {
            margin-bottom: 60px;
        }
        
        .donors-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 20px;
        }
        
        .donor-card {
            background-color: var(--white);
            border-radius: var(--border-radius);
            padding: 20px;
            box-shadow: var(--shadow);
            border: 1px solid var(--medium-gray);
            text-align: center;
        }
        
        .donor-avatar {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background-color: var(--light-gray);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 15px;
            overflow: hidden;
        }
        
        .donor-avatar img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        
        .donor-name {
            font-size: 16px;
            margin-bottom: 5px;
        }
        
        .donor-contribution {
            color: var(--accent-gold);
            font-size: 14px;
            font-weight: 600;
        }
        
        /* 页脚 */
        footer {
            background-color: var(--primary-black);
            color: var(--white);
            padding: 30px 0 15px;
            width: 100%;
        }
        
        .footer-container {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-bottom: 20px;
        }
        
        .footer-column h3 {
            color: var(--accent-gold);
            font-size: 16px;
            margin-bottom: 15px;
            position: relative;
            padding-bottom: 8px;
        }
        
        .footer-column h3::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 35px;
            height: 2px;
            background-color: var(--accent-gold);
        }
        
        .footer-links {
            list-style: none;
        }
        
        .footer-links li {
            margin-bottom: 8px;
            text-align: left;
            color: #bdc3c7;
            font-size: 13px;
        }
        
        .footer-links a {
            color: #bdc3c7;
            text-decoration: none;
            transition: var(--transition);
            font-size: 13px;
        }
        
        .footer-links a:hover {
            color: var(--accent-gold);
            padding-left: 3px;
        }
        
        .social-icons {
            display: flex;
            gap: 10px;
            margin-top: 15px;
            justify-content: flex-start;
        }
        
        .social-icon {
            width: 35px;
            height: 35px;
            border-radius: 50%;
            background-color: rgba(212, 175, 55, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-gold);
            text-decoration: none;
            transition: var(--transition);
            font-size: 16px;
        }
        
        .social-icon:hover {
            background-color: var(--accent-gold);
            color: var(--primary-black);
            transform: translateY(-3px);
        }
        
        .copyright {
            text-align: center;
            padding-top: 15px;
            border-top: 1px solid rgba(212, 175, 55, 0.2);
            font-size: 12px;
            color: #bdc3c7;
        }
        
        /* 响应式设计 */
        @media (max-width: 992px) {
            .transparency-content {
                grid-template-columns: 1fr;
            }
            
            .impact-stats {
                grid-template-columns: repeat(2, 1fr);
            }
            
            .charity-hero h1 {
                font-size: 30px;
            }
            
            .donation-percentage {
                font-size: 40px;
            }
        }
        
        @media (max-width: 768px) {
            .header-container {
                padding: 10px 15px;
            }
            
            .mobile-nav-btn {
                display: block;
            }
            
            .language-icon {
                display: block;
            }
            
            .language-selector {
                display: none;
                position: absolute;
                top: 60px;
                right: 15px;
                background-color: var(--primary-black);
                box-shadow: var(--shadow-heavy);
                border-radius: var(--border-radius);
                padding: 12px;
                z-index: 1000;
                min-width: 130px;
                opacity: 0;
                transform: translateY(-10px);
                transition: var(--transition);
                visibility: hidden;
            }
            
            .language-selector.show {
                display: block;
                opacity: 1;
                transform: translateY(0);
                visibility: visible;
            }
            
            .nav-links {
                position: fixed;
                top: 56px;
                left: 0;
                width: 100%;
                background-color: var(--primary-black);
                flex-direction: column;
                align-items: center;
                padding: 15px 0;
                box-shadow: var(--shadow);
                transform: translateY(-100%);
                opacity: 0;
                visibility: hidden;
                transition: var(--transition);
                z-index: 999;
            }
            
            .nav-links.active {
                transform: translateY(0);
                opacity: 1;
                visibility: visible;
            }
            
            .nav-links a {
                padding: 12px 0;
                font-size: 16px;
                width: 100%;
                text-align: center;
            }
            
            .charity-hero {
                padding: 40px 0;
            }
            
            .charity-hero h1 {
                font-size: 26px;
            }
            
            .charity-hero p {
                font-size: 16px;
            }
            
            .projects-grid {
                grid-template-columns: 1fr;
            }
            
            .donation-percentage {
                font-size: 36px;
            }
            
            .footer-container {
                grid-template-columns: 1fr 1fr;
                gap: 25px;
            }
        }
        
        @media (max-width: 480px) {
            .charity-hero h1 {
                font-size: 22px;
            }
            
            .section-title {
                font-size: 24px;
            }
            
            .impact-stats {
                grid-template-columns: 1fr;
            }
            
            .impact-stat .stat-number {
                font-size: 30px;
            }
            
            .partners-grid {
                grid-template-columns: 1fr;
            }
            
            .donation-highlight {
                padding: 15px;
            }
        }