/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.2rem;
    font-weight: bold;
    color: #764ba2;
}

.nav-logo i {
    margin-right: 8px;
    color: #ff6b6b;
}

.nav-menu {
    display: flex;
    gap: 30px;
}

.nav-link {
    color: #333;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #764ba2;
}

/* 首页英雄区 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 80px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text {
    color: white;
}

.hero-text h1 {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 20px;
}

.hero-text p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-actions {
    display: flex;
    gap: 20px;
}

.hero-image {
    text-align: center;
}

.hero-image img {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

/* 按钮样式 */
.btn {
    padding: 12px 25px;
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.btn-primary {
    background: #ff6b6b;
    color: white;
}

.btn-primary:hover {
    background: #ee5a24;
    transform: translateY(-2px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* 支持区域 */
.support {
    padding: 80px 20px;
    background: white;
}

.support h2 {
    text-align: center;
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 50px;
}

.support-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.support-item {
    text-align: center;
    padding: 40px;
    border-radius: 15px;
    background: #f8f9fa;
    transition: transform 0.3s ease;
}

.support-item:hover {
    transform: translateY(-5px);
}

.support-item i {
    font-size: 3rem;
    color: #764ba2;
    margin-bottom: 20px;
}

.support-item h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: #333;
}

.support-item p {
    color: #666;
    margin-bottom: 25px;
}

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

.amount-buttons button, .share-buttons button, .support-item button {
    padding: 10px 20px;
    border: 2px solid #764ba2;
    background: white;
    color: #764ba2;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
}

.amount-buttons button:hover, .share-buttons button:hover, .support-item button:hover {
    background: #764ba2;
    color: white;
    transform: scale(1.05);
}

/* 支付方式选择 */
.payment-methods {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #e9ecef;
}

.payment-option {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
    cursor: pointer;
}

.payment-option input[type="radio"] {
    margin-right: 10px;
    cursor: pointer;
}

.payment-option label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-weight: 500;
    color: #333;
}

.payment-option i {
    font-size: 1.2rem;
    width: 20px;
}

.payment-option:nth-child(1) i {
    color: #1677ff;
}

.payment-option:nth-child(2) i {
    color: #07c160;
}

.payment-option:nth-child(3) i {
    color: #12b7f5;
}

/* 支付确认对话框 */
.payment-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.payment-modal.active {
    display: flex;
}

.payment-content {
    background: white;
    padding: 30px;
    border-radius: 15px;
    max-width: 400px;
    width: 90%;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.payment-content h3 {
    color: #333;
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.payment-amount {
    font-size: 2rem;
    color: #764ba2;
    font-weight: bold;
    margin: 20px 0;
}

.payment-method-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin: 15px 0;
    font-size: 1.1rem;
}

.payment-actions {
    display: flex;
    gap: 15px;
    margin-top: 25px;
}

.payment-actions button {
    flex: 1;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-cancel {
    background: #f8f9fa;
    color: #666;
}

.btn-cancel:hover {
    background: #e9ecef;
}

.btn-confirm {
    background: #764ba2;
    color: white;
}

.btn-confirm:hover {
    background: #5a67d8;
    transform: translateY(-1px);
}

/* 留言区域 */
.messages {
    padding: 80px 20px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.messages h2 {
    text-align: center;
    font-size: 2.5rem;
    color: #333;
    margin-bottom: 50px;
}

/* 留言表单 */
.message-form {
    max-width: 600px;
    margin: 0 auto 60px;
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.form-group {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.form-group input, .form-group select {
    padding: 12px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus, .form-group select:focus {
    outline: none;
    border-color: #764ba2;
}

.form-group input {
    flex: 1;
}

.form-group select {
    width: 80px;
}

#messageContent {
    width: 100%;
    min-height: 100px;
    padding: 12px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    resize: vertical;
    margin-bottom: 15px;
}

#messageContent:focus {
    outline: none;
    border-color: #764ba2;
}

.form-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.form-footer span {
    color: #666;
    font-size: 0.9rem;
}

#messageForm button {
    padding: 12px 25px;
    background: #764ba2;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s ease;
}

#messageForm button:hover {
    background: #5a67d8;
}

/* 留言列表 */
.message-list {
    max-width: 800px;
    margin: 0 auto;
}

.message {
    background: white;
    padding: 25px;
    border-radius: 15px;
    margin-bottom: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    animation: slideIn 0.5s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.message-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #764ba2;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: 600;
    color: #333;
}

.message-time {
    font-size: 0.85rem;
    color: #999;
}

.message-emoji {
    font-size: 1.5rem;
}

.message-content {
    color: #333;
    line-height: 1.6;
    margin-bottom: 15px;
}

.message-actions {
    display: flex;
    gap: 20px;
}

.action-btn {
    background: none;
    border: none;
    color: #666;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.action-btn:hover {
    color: #ff6b6b;
}

.action-btn.liked {
    color: #ff6b6b;
}

/* 页脚 */
.footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 40px 20px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-image img {
        width: 250px;
        height: 250px;
    }
    
    .support-options {
        grid-template-columns: 1fr;
    }
    
    .form-group {
        flex-direction: column;
    }
    
    .form-group select {
        width: 100%;
    }
    
    .form-footer {
        flex-direction: column;
        gap: 15px;
        align-items: stretch;
    }
    
    .message-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 2rem;
    }
    
    .hero-text p {
        font-size: 1rem;
    }
    
    .support h2, .messages h2 {
        font-size: 2rem;
    }
    
    .support-item {
        padding: 30px 20px;
    }
}