/* 预览内容样式 */
.preview-content {
    position: relative;
    padding-bottom: 30px;
}

.preview-content::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: linear-gradient(to bottom, transparent, #fff);
    pointer-events: none;
}

/* 锁定内容容器 */
.content-locked {
    margin: 40px 0;
    padding: 50px 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
}

.locked-message {
    max-width: 600px;
    margin: 0 auto;
    color: white;
}

.lock-icon {
    font-size: 60px;
    margin-bottom: 20px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.locked-message h3 {
    font-size: 28px!important;
    margin: 20px 0 15px;
    color: white!important;
    font-weight: 600;
}

.locked-message p {
    font-size: 16px;
    margin: 10px 0;
    color: rgba(255,255,255,0.9);
    line-height: 1.6;
}

/* 评论解锁按钮 */
.unlock-button {
    display: inline-block;
    margin-top: 25px;
    padding: 15px 40px;
    background: white;
    color: #667eea;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.unlock-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
    color: #667eea;
}

/* 付费阅读样式 */
.payment-locked {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.price-tag {
    font-size: 32px;
    font-weight: bold;
    margin: 20px 0;
    color: #fff;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

/* 支付方式 */
.payment-methods {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 30px;
    flex-wrap: wrap;
}

.payment-method {
    flex: 0 0 auto;
}

.payment-btn {
    display: inline-block;
    padding: 12px 30px;
    background: white;
    color: #333;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 15px;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.payment-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

.wechat-btn {
    background: #07c160;
    color: white;
}

.alipay-btn {
    background: #1677ff;
    color: white;
}

.paypal-btn {
    background: #0070ba;
    color: white;
}

/* 二维码容器 */
.qr-code-container {
    margin-top: 20px;
    padding: 25px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    animation: slideDown 0.3s ease-out;
}

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

.qr-code-container img {
    max-width: 250px;
    height: auto;
    display: block;
    margin: 0 auto 15px;
    border: 3px solid #f0f0f0;
    border-radius: 8px;
}

.qr-code-container p {
    color: #333;
    font-size: 14px;
    margin: 15px 0;
}

.payment-code-input {
    width: 100%;
    max-width: 300px;
    padding: 12px;
    margin: 15px auto;
    display: block;
    border: 2px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    text-align: center;
    transition: border-color 0.3s;
}

.payment-code-input:focus {
    outline: none;
    border-color: #667eea;
}

.verify-payment-btn {
    padding: 12px 30px;
    background: #667eea;
    color: white;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 14px;
}

.verify-payment-btn:hover {
    background: #5568d3;
    transform: translateY(-2px);
}

.verify-payment-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
}

.contact-admin {
    color: white;
    text-decoration: underline;
}

.contact-admin:hover {
    color: #fff;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .content-locked {
        padding: 30px 15px;
    }
    
    .lock-icon {
        font-size: 48px;
    }
    
    .locked-message h3 {
        font-size: 22px;
    }
    
    .price-tag {
        font-size: 26px;
    }
    
    .payment-methods {
        flex-direction: column;
        gap: 10px;
    }
    
    .payment-btn {
        width: 100%;
        max-width: 250px;
    }
    
    .qr-code-container {
        padding: 20px 15px;
    }
}

/* 支付成功提示 */
.payment-success {
    padding: 15px;
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    border-radius: 6px;
    margin-top: 15px;
    animation: slideDown 0.3s ease-out;
}

.payment-error {
    padding: 15px;
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    border-radius: 6px;
    margin-top: 15px;
    animation: slideDown 0.3s ease-out;
}