/* 联系对话框样式 */
.contact-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    animation: fadeIn 0.3s ease;
}

.contact-modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-modal__backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

.contact-modal__card {
    position: relative;
    background: #fff;
    border-radius: 20px;
    padding: 0;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 10000;
}

.contact-modal__header {
    padding: 30px 30px 20px;
    border-bottom: 1px solid #e8e8e8;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.contact-modal__header h3 {
    margin: 0;
    font-size: 24px;
    font-weight: 600;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-modal__header h3::before {
    content: "✉️";
    font-size: 28px;
}

.contact-modal__close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    font-size: 24px;
    color: #fff;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

.contact-modal__close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

.contact-modal__body {
    padding: 30px;
    overflow-y: auto;
    max-height: calc(90vh - 180px);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 14px;
    font-weight: 600;
    color: #333;
    display: flex;
    align-items: center;
    gap: 6px;
}

.form-group label .required {
    color: #f56565;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e8e8e8;
    border-radius: 10px;
    font-size: 15px;
    font-family: inherit;
    transition: all 0.3s ease;
    background: #f9f9f9;
    box-sizing: border-box;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    background: #fff;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.form-footer {
    display: flex;
    gap: 12px;
    margin-top: 10px;
}

.btn {
    flex: 1;
    padding: 14px 24px;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-secondary {
    background: #f0f0f0;
    color: #666;
}

.btn-secondary:hover {
    background: #e0e0e0;
    transform: translateY(-2px);
}

.loading-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid #fff;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.alert {
    padding: 14px 16px;
    border-radius: 10px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    animation: slideDown 0.3s ease;
}

.alert-success {
    background: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
}

.alert-error {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}

.alert::before {
    font-size: 18px;
}

.alert-success::before {
    content: "✓";
    color: #28a745;
}

.alert-error::before {
    content: "⚠";
    color: #dc3545;
}

/* 暗色主题适配 */
[data-theme='dark'] .contact-modal__card {
    background: #1a1a2e;
}

[data-theme='dark'] .contact-modal__header {
    border-bottom-color: #2d2d44;
}

[data-theme='dark'] .form-group label {
    color: #e0e0e0;
}

[data-theme='dark'] .form-group input,
[data-theme='dark'] .form-group textarea {
    background: #16213e;
    border-color: #2d2d44;
    color: #e0e0e0;
}

[data-theme='dark'] .form-group input:focus,
[data-theme='dark'] .form-group textarea:focus {
    background: #1a1a2e;
    border-color: #667eea;
}

[data-theme='dark'] .btn-secondary {
    background: #2d2d44;
    color: #b0b0b0;
}

[data-theme='dark'] .btn-secondary:hover {
    background: #3d3d54;
}

[data-theme='dark'] .alert-success {
    background: #1e3a2c;
    border-color: #2d5a3d;
    color: #6dd6a0;
}

[data-theme='dark'] .alert-error {
    background: #3a1e1e;
    border-color: #5a2d2d;
    color: #ff6b6b;
}

/* 动画 */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 响应式设计 */
@media (max-width: 600px) {
    .contact-modal__card {
        width: 95%;
        border-radius: 15px;
    }
    
    .contact-modal__header {
        padding: 20px 20px 15px;
    }
    
    .contact-modal__header h3 {
        font-size: 20px;
    }
    
    .contact-modal__body {
        padding: 20px;
    }
    
    .form-footer {
        flex-direction: column;
    }
}