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

:root {
    --primary-color: #87CEEB;
    --primary-dark: #5F9EA0;
    --secondary-color: #E6E6FA;
    --accent-color: #FFB6C1;
    --success-color: #10b981;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-accent: #f3f4f6;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --gradient-primary: linear-gradient(90deg, #87CEEB 0%, #E6E6FA 50%, #FFB6C1 100%);
    --gradient-secondary: linear-gradient(135deg, #E6E6FA 0%, #FFB6C1 100%);
    --gradient-accent: linear-gradient(135deg, #87CEEB 0%, #E6E6FA 100%);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* 头部样式 */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    color: var(--text-primary);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid var(--border-color);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(90deg, #87CEEB 0%, #E6E6FA 50%, #FFB6C1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo a {
    transition: opacity 0.2s;
}

.logo a:hover {
    opacity: 0.8;
}



.nav {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    transition: all 0.2s;
}

.nav-link:hover {
    background: var(--bg-accent);
    color: var(--primary-color);
}



/* 主要内容 */
.main {
    min-height: calc(100vh - 200px);
}



/* 捐款区域 */
.donation-section {
    padding: 4rem 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    margin: 2rem 0;
}

.donation-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: start;
}

.section-title {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.125rem;
}

/* 捐款表单 */
.donation-form-container {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.donation-form {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* 支付方式选择 */
.payment-method-selection h3,
.amount-selection h3,
.donation-frequency h3,
.donor-info h3,
.donation-summary h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.payment-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.payment-option {
    cursor: pointer;
}

.payment-input {
    display: none;
}

.payment-button {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem 1rem;
    text-align: center;
    background: var(--bg-accent);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: all 0.2s;
    min-height: 100px;
    justify-content: center;
}

.payment-button i {
    font-size: 2rem;
}

.payment-button .fab.fa-weixin {
    color: #07C160;
}

.payment-button .fab.fa-alipay {
    color: #1677FF;
}

.payment-button .fab.fa-paypal {
    color: #003087;
}

.payment-input:checked + .payment-button {
    background: #D9EDF8;
    color: var(--text-primary);
    border-color: var(--primary-color);
}

.payment-input:checked + .payment-button .fab.fa-weixin {
    color: #07C160 !important;
}

.payment-input:checked + .payment-button .fab.fa-alipay {
    color: #1677FF !important;
}

.payment-input:checked + .payment-button .fab.fa-paypal {
    color: #003087 !important;
}

.payment-option.disabled {
    cursor: not-allowed;
    opacity: 0.6;
}

.payment-option.disabled .payment-button {
    background: var(--bg-secondary);
    border-color: var(--border-color);
    color: var(--text-secondary);
    cursor: not-allowed;
}

.payment-option.disabled .payment-button i {
    opacity: 0.5;
}

.coming-soon {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
    font-weight: 400;
}

/* 二维码显示区域 */
.qr-code-section {
    background: var(--bg-accent);
    padding: 2rem;
    border-radius: var(--radius-md);
}

.qr-code-container {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 1.5rem 0;
}

.qr-code-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    width: 100%;
    max-width: 300px;
}

.qr-code {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    width: 100%;
}

.qr-image {
    width: 200px;
    height: 200px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 80px;
}

.qr-image .fab.fa-weixin {
    color: #07C160;
}

.qr-image .fab.fa-alipay {
    color: #1677FF;
}

.qr-text {
    font-weight: 500;
    color: var(--text-primary);
    margin: 0;
    text-align: center;
}

.qr-text h4 {
    margin: 0 0 0.5rem 0;
}

.qr-text p {
    margin: 0;
    color: var(--text-secondary);
}

.qr-note {
    background: white;
    padding: 1rem;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--accent-color);
}

.qr-note p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.qr-note i {
    color: var(--accent-color);
}

.amount-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.amount-option {
    cursor: pointer;
}

.amount-input {
    display: none;
}

.amount-button {
    display: block;
    padding: 1rem;
    text-align: center;
    background: var(--bg-accent);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: all 0.2s;
}

.amount-input:checked + .amount-button {
    background: #D9EDF8;
    color: var(--text-primary);
    border-color: var(--primary-color);
}

.custom-amount {
    margin-top: 1rem;
}

.custom-amount label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.custom-amount input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
}

.frequency-options {
    display: flex;
    gap: 1rem;
}

.frequency-option {
    cursor: pointer;
}

.frequency-option input {
    display: none;
}

.frequency-button {
    display: block;
    padding: 0.75rem 1.5rem;
    background: var(--bg-accent);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: all 0.2s;
}

.frequency-option input:checked + .frequency-button {
    background: #D9EDF8;
    color: var(--text-primary);
    border-color: var(--primary-color);
}

/* 表单样式 */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(135, 206, 235, 0.1);
}

/* 捐款摘要 */
.donation-summary {
    background: var(--bg-accent);
    padding: 1.5rem;
    border-radius: var(--radius-md);
}

.summary-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.summary-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.summary-item.total {
    font-weight: 600;
    font-size: 1.125rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 捐款按钮容器 */
.donate-button-container {
    margin-top: 2rem;
    display: flex;
    justify-content: center;
}

/* 捐款按钮 */
.donate-button {
    background: var(--gradient-accent);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--radius-lg);
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    box-shadow: var(--shadow-md);
    width: 100%;
    max-width: 300px;
}

.donate-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* 捐款信息侧边栏 */
.donation-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.info-card {
    background: white;
    padding: 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border-left: 4px solid #FDA0CA;
}

.info-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.info-card h3 i {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.info-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
}

.impact-items {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1rem;
}

.impact-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--bg-accent);
    border-radius: var(--radius-sm);
}

.impact-item .impact-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1rem;
}

.impact-item h4 {
    margin: 0 0 0.25rem 0;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.impact-item p {
    margin: 0;
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.other-ways {
    background: white;
    padding: 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.other-ways h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.way-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

.way-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.way-item i {
    font-size: 1.25rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    width: 2rem;
    text-align: center;
}

.way-item h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.way-item p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* 银行卡信息样式 */
.bank-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.bank-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

.bank-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.bank-item i {
    font-size: 1.25rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    width: 2rem;
    text-align: center;
    margin-top: 0.25rem;
}

.bank-item h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.bank-item p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.bank-account {
    font-family: 'Courier New', monospace;
    font-weight: 600;
    color: var(--text-primary) !important;
    background: var(--bg-accent);
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    letter-spacing: 1px;
}

.copy-btn {
    background: var(--gradient-primary);
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.copy-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.copy-btn:active {
    transform: scale(0.95);
}

.bank-note {
    background: var(--bg-accent);
    padding: 1rem;
    border-radius: var(--radius-md);
    border-left: 4px solid var(--accent-color);
    margin-top: 0.5rem;
}

.bank-note p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.bank-note i {
    color: var(--accent-color);
}



/* 页脚 */
.footer {
    background: linear-gradient(135deg, #1f2937 0%, #374151 50%, #4b5563 100%);
    color: white;
    padding: 4rem 0 2rem;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, rgba(135, 206, 235, 0.1) 0%, rgba(230, 230, 250, 0.1) 50%, rgba(255, 182, 193, 0.1) 100%);
    pointer-events: none;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
    position: relative;
    z-index: 1;
}

.footer-section h3 {
    margin-bottom: 1.5rem;
    color: white;
    font-size: 1.5rem;
    font-weight: 600;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: white;
    font-size: 1.1rem;
    font-weight: 500;
}

.footer-section p {
    color: #e5e7eb;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
    line-height: 1.6;
    transition: color 0.3s ease;
}

.footer-section p:hover {
    color: #f3f4f6;
}

.footer-section a {
    color: #e5e7eb;
    text-decoration: none;
    transition: all 0.3s ease;
    border-bottom: 1px solid transparent;
}

.footer-section a:hover {
    color: #87CEEB;
    border-bottom-color: #87CEEB;
}

.footer-section i {
    color: #87CEEB;
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    position: relative;
    z-index: 1;
}

.footer-bottom p {
    color: #d1d5db;
    font-size: 0.9rem;
    margin: 0;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: #d1d5db;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid transparent;
}

.footer-links a:hover {
    color: #87CEEB;
    border-bottom-color: #87CEEB;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .donation-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .payment-options {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .amount-options {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .frequency-options {
        flex-direction: column;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .footer-section h3 {
        font-size: 1.3rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .nav {
        display: none;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.5rem;
    }
    
    .donation-section,
    .impact-section {
        padding: 2rem 0;
    }
    
    .payment-options {
        grid-template-columns: 1fr;
    }
    
    .amount-options {
        grid-template-columns: 1fr;
    }
    

}

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

.donation-form-container,
.impact-card {
    animation: fadeInUp 0.6s ease-out;
}

/* 加载状态 */
.donate-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* 成功状态 */
.success-message {
    background: var(--success-color);
    color: white;
    padding: 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
    text-align: center;
}

/* 错误状态 */
.error-message {
    background: #ef4444;
    color: white;
    padding: 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
    text-align: center;
}