/* 商业化功能样式 - Newsletter, Contact, Social Share, Analytics */

/* Newsletter 样式 */
.newsletter-button {
    position: fixed;
    bottom: 80px;
    right: 20px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 15px 20px;
    border-radius: 25px;
    cursor: pointer;
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.3);
    transition: all 0.3s ease;
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 10px;
    opacity: 0;
    transform: translateY(20px);
}

.newsletter-button.show {
    opacity: 1;
    transform: translateY(0);
}

.newsletter-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
}

.newsletter-icon {
    font-size: 18px;
}

.newsletter-text {
    font-weight: 600;
}

/* Newsletter Modal */
.newsletter-modal .modal-content {
    max-width: 600px;
}

.newsletter-benefits ul {
    list-style: none;
    padding: 0;
    margin: 20px 0;
}

.newsletter-benefits li {
    padding: 10px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.newsletter-benefits i {
    color: #667eea;
    width: 20px;
}

.interests-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin: 15px 0;
}

.interest-option {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    padding: 10px;
    border-radius: 8px;
    transition: background-color 0.3s ease;
}

.interest-option:hover {
    background-color: #f8f9fa;
}

.interest-option input[type="checkbox"] {
    display: none;
}

.interest-option .checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid #e0e0e0;
    border-radius: 4px;
    position: relative;
    transition: all 0.3s ease;
}

.interest-option input:checked + .checkmark {
    background: #667eea;
    border-color: #667eea;
}

.interest-option input:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-weight: bold;
    font-size: 12px;
}

.frequency-options {
    display: flex;
    gap: 20px;
    margin: 15px 0;
}

.radio-option {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.radio-option input[type="radio"] {
    display: none;
}

.radio-mark {
    width: 20px;
    height: 20px;
    border: 2px solid #e0e0e0;
    border-radius: 50%;
    position: relative;
    transition: all 0.3s ease;
}

.radio-option input:checked + .radio-mark {
    border-color: #667eea;
}

.radio-option input:checked + .radio-mark::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 10px;
    background: #667eea;
    border-radius: 50%;
}

.newsletter-stats {
    display: flex;
    justify-content: space-around;
    margin-top: 30px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
}

.stats-item {
    text-align: center;
}

.stats-number {
    display: block;
    font-size: 1.5rem;
    font-weight: bold;
    color: #667eea;
}

.stats-label {
    font-size: 0.9rem;
    color: #666;
}

/* Newsletter Inline Section */
.newsletter-inline-section {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 60px 20px;
    margin: 60px 0;
}

.newsletter-inline-container {
    max-width: 1200px;
    margin: 0 auto;
}

.newsletter-inline-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.newsletter-inline-text h3 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.newsletter-inline-text p {
    font-size: 1.2rem;
    opacity: 0.9;
}

.inline-input-group {
    display: flex;
    gap: 15px;
}

.inline-input-group input {
    flex: 1;
    padding: 15px 20px;
    border: none;
    border-radius: 10px;
    font-size: 16px;
}

.inline-input-group button {
    padding: 15px 30px;
    border-radius: 10px;
    white-space: nowrap;
}

.inline-privacy {
    margin-top: 10px;
    opacity: 0.8;
}

/* Contact 样式 */
.contact-button {
    position: fixed;
    bottom: 140px;
    right: 20px;
    background: linear-gradient(135deg, #28a745, #20c997);
    color: white;
    padding: 15px 20px;
    border-radius: 25px;
    cursor: pointer;
    box-shadow: 0 5px 20px rgba(40, 167, 69, 0.3);
    transition: all 0.3s ease;
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 10px;
    opacity: 0;
    transform: translateY(20px);
}

.contact-button.show {
    opacity: 1;
    transform: translateY(0);
}

.contact-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(40, 167, 69, 0.4);
}

.contact-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin: 30px 0;
}

.contact-option {
    padding: 20px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 15px;
}

.contact-option:hover,
.contact-option.selected {
    border-color: #667eea;
    background: #f8f9ff;
}

.option-icon {
    font-size: 2rem;
    color: #667eea;
}

.option-content h4 {
    margin: 0 0 5px 0;
    color: #333;
}

.option-content p {
    margin: 0;
    color: #666;
    font-size: 0.9rem;
}

.contact-inline-section {
    background: #f8f9fa;
    padding: 60px 20px;
    margin: 60px 0;
}

.contact-inline-container {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.contact-benefits {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin: 40px 0;
}

.benefit-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.benefit-item i {
    font-size: 2rem;
    color: #667eea;
}

.contact-inline-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 40px 0;
}

/* Social Share 样式 */
.social-share-container {
    position: fixed;
    top: 50%;
    left: 20px;
    transform: translateY(-50%);
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.social-share-container.show {
    opacity: 1;
}

.social-share-button {
    display: block;
    width: 50px;
    height: 50px;
    margin-bottom: 10px;
    border-radius: 50%;
    color: white;
    text-align: center;
    line-height: 50px;
    font-size: 20px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
}

.social-share-button:hover {
    transform: scale(1.1);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.social-share-button.facebook { background: #3b5998; }
.social-share-button.twitter { background: #1da1f2; }
.social-share-button.linkedin { background: #0077b5; }
.social-share-button.reddit { background: #ff4500; }
.social-share-button.email { background: #34495e; }

/* Form Enhancement */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-section.half {
    flex: 1;
}

.field-error {
    color: #e74c3c;
    font-size: 0.85rem;
    margin-top: 5px;
    display: none;
}

.input-container {
    position: relative;
}

.input-icon {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #999;
}

.validation-icon {
    position: absolute;
    right: 45px;
    top: 50%;
    transform: translateY(-50%);
}

.validation-icon.valid {
    color: #27ae60;
}

.validation-icon.invalid {
    color: #e74c3c;
}

input.valid,
textarea.valid {
    border-color: #27ae60;
}

input.invalid,
textarea.invalid {
    border-color: #e74c3c;
}

/* Analytics Indicators */
.analytics-indicator {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 10px 20px;
    border-radius: 20px;
    font-size: 0.8rem;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.analytics-indicator.show {
    opacity: 1;
}

/* Responsive Design */
@media (max-width: 768px) {
    .newsletter-inline-content,
    .contact-options,
    .form-row {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .newsletter-button,
    .contact-button {
        position: relative;
        bottom: auto;
        right: auto;
        margin: 20px auto;
        display: block;
        width: fit-content;
    }
    
    .social-share-container {
        position: relative;
        left: auto;
        top: auto;
        transform: none;
        display: flex;
        justify-content: center;
        margin: 20px 0;
    }
    
    .social-share-button {
        margin: 0 5px;
    }
    
    .contact-benefits {
        flex-direction: column;
        gap: 20px;
    }
    
    .contact-inline-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .inline-input-group {
        flex-direction: column;
    }
    
    .newsletter-inline-text h3 {
        font-size: 2rem;
    }
}