/* 反馈区域样式 */
.feedback {
    padding: 4rem 0;
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.4) 0%, rgba(10, 10, 15, 0.6) 100%);
    border-top: 1px solid var(--border);
}

.feedback-content {
    max-width: 800px;
    margin: 0 auto;
}

.feedback-header {
    text-align: center;
    margin-bottom: 3rem;
}

.feedback-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #4a90e2, #9b59b6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.feedback-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.feedback-form-container {
    position: relative;
}

.feedback-form {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: all 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
    background: rgba(255, 255, 255, 0.08);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group select {
    cursor: pointer;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
    line-height: 1.5;
}

/* 复选框样式 */
.checkbox-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.checkbox-item {
    display: flex;
    align-items: center;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
}

.checkbox-item:hover {
    background: rgba(74, 144, 226, 0.1);
}

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

.checkmark {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-radius: 4px;
    margin-right: 0.75rem;
    position: relative;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.checkbox-item input[type="checkbox"]:checked + .checkmark {
    background: var(--primary);
    border-color: var(--primary);
}

.checkbox-item input[type="checkbox"]:checked + .checkmark::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 12px;
    font-weight: bold;
}

/* 星级评分样式 */
.rating-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 0.5rem;
}

.star-rating {
    display: flex;
    gap: 0.25rem;
}

.star {
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    filter: grayscale(100%);
    opacity: 0.5;
}

.star:hover,
.star.active {
    filter: grayscale(0%);
    opacity: 1;
    transform: scale(1.1);
}

.star.active {
    text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
}

.rating-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* 表单按钮 */
.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

.submit-btn,
.reset-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border: none;
    border-radius: 25px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    font-family: inherit;
}

.submit-btn {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: 0 4px 15px rgba(74, 144, 226, 0.3);
}

.submit-btn:hover {
    background: linear-gradient(135deg, var(--primary-hover), #8e44ad);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.4);
}

.reset-btn {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.reset-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-color: var(--primary);
}

/* 成功提示样式 */
.feedback-success {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 3rem;
    box-shadow: var(--shadow-lg);
}

.success-icon {
    font-size: 4rem;
    color: #10b981;
    margin-bottom: 1.5rem;
    animation: successPulse 2s ease-in-out infinite;
}

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

.feedback-success h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.feedback-success p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.new-feedback-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border: none;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
}

.new-feedback-btn:hover {
    background: linear-gradient(135deg, var(--primary-hover), #8e44ad);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.4);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .feedback {
        padding: 3rem 0;
    }

    .feedback-header h2 {
        font-size: 2rem;
    }

    .feedback-form {
        padding: 2rem 1.5rem;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .checkbox-group {
        grid-template-columns: 1fr;
    }

    .form-actions {
        flex-direction: column;
        align-items: center;
    }

    .submit-btn,
    .reset-btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }

    .rating-container {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .feedback-success {
        padding: 2rem 1.5rem;
    }

    .success-icon {
        font-size: 3rem;
    }

    .feedback-success h3 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .feedback-header h2 {
        font-size: 1.75rem;
    }

    .feedback-form {
        padding: 1.5rem 1rem;
    }

    .star {
        font-size: 1.25rem;
    }

    .feedback-success {
        padding: 1.5rem 1rem;
    }
}