/* 留言板功能样式 */
.feedback-section {
    margin-bottom: 40px;
}

.feedback-description {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.1rem;
    margin-bottom: 30px;
    text-align: center;
}

.feedback-form-container {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 25px;
    margin-bottom: 30px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

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

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

.form-group label {
    color: white;
    font-weight: 500;
    font-size: 1rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: 12px 15px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.2);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.char-count {
    text-align: right;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
}

.submit-btn {
    padding: 12px 30px;
    background: linear-gradient(135deg, #3b82f6, #1e40af);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    align-self: flex-start;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(59, 130, 246, 0.4);
}

.submit-btn:active {
    transform: translateY(0);
}

.feedback-list-container {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    padding: 25px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.feedback-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.filter-controls {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 20px;
    color: white;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn.active {
    background: rgba(59, 130, 246, 0.6);
    border-color: rgba(59, 130, 246, 0.8);
}

.filter-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.sort-controls select {
    padding: 8px 15px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    color: white;
    font-size: 0.9rem;
}

.feedback-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-height: 400px;
    overflow-y: auto;
    padding-right: 10px;
}

.feedback-list::-webkit-scrollbar {
    width: 6px;
}

.feedback-list::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

.feedback-list::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 3px;
}

.feedback-item {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 20px;
    border-left: 4px solid;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.feedback-item:hover {
    transform: translateX(5px);
    background: rgba(255, 255, 255, 0.15);
}

.feedback-item.suggestion {
    border-left-color: #3b82f6;
}

.feedback-item.question {
    border-left-color: #f59e0b;
}

.feedback-item.compliment {
    border-left-color: #10b981;
}

.feedback-item.cooperation {
    border-left-color: #8b5cf6;
}

.feedback-item.other {
    border-left-color: #6b7280;
}

.feedback-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    flex-wrap: wrap;
    gap: 10px;
}

.feedback-author {
    font-weight: 600;
    color: white;
    font-size: 1.1rem;
}

.feedback-type {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
}

.feedback-type.suggestion {
    background: rgba(59, 130, 246, 0.3);
    color: #93c5fd;
}

.feedback-type.question {
    background: rgba(245, 158, 11, 0.3);
    color: #fcd34d;
}

.feedback-type.compliment {
    background: rgba(16, 185, 129, 0.3);
    color: #6ee7b7;
}

.feedback-type.cooperation {
    background: rgba(139, 92, 246, 0.3);
    color: #c4b5fd;
}

.feedback-type.other {
    background: rgba(107, 114, 128, 0.3);
    color: #d1d5db;
}

.feedback-content {
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
    margin-bottom: 10px;
}

.feedback-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
    flex-wrap: wrap;
    gap: 10px;
}

.feedback-time {
    font-style: italic;
}

.no-feedback {
    text-align: center;
    padding: 40px 20px;
    color: rgba(255, 255, 255, 0.6);
    font-style: italic;
}

/* 其他信息卡片样式 */
.other-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.other-card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 25px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.other-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.other-card h3 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.3rem;
    text-align: center;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.stat-item {
    text-align: center;
    padding: 15px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.stat-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: scale(1.05);
}

.stat-number {
    display: block;
    font-size: 1.8rem;
    font-weight: bold;
    color: #3b82f6;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.8);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(5px);
}

.contact-icon {
    font-size: 1.2rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .feedback-controls {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-controls {
        justify-content: center;
    }

    .sort-controls {
        align-self: center;
    }

    .other-cards {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .feedback-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .feedback-meta {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* 加载更多按钮样式 */
.load-more-container {
    text-align: center;
    margin-top: 20px;
}

.load-more-btn {
    padding: 10px 25px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    color: white;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.load-more-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}
/* 消息提示动画 */
@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOutRight {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

.message {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 15px 20px;
    border-radius: 8px;
    color: white;
    font-weight: 500;
    z-index: 1000;
    animation: slideInRight 0.3s ease;
    max-width: 300px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.message.success {
    background: linear-gradient(135deg, #10b981, #059669);
}

.message.error {
    background: linear-gradient(135deg, #ef4444, #dc2626);
}