/* 留言板专用样式 */
/* 页面标题样式 */
.page-title {
    text-align: center;
    margin-bottom: 40px;
}

.page-title h1 {
    font-size: 2.5rem;
    color: #e74c3c;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.page-title p {
    font-size: 1.1rem;
    color: #7f8c8d;
    margin: 0;
}

.message-container {
    padding: 20px;
    background-color: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 2px 10px var(--card-shadow);
}

/* 留言输入区域 */
.message-input {
    background-color: var(--bottom-menu-hover-bg);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 30px;
    border: 1px solid var(--module-shadow);
}

#messageText {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--module-shadow);
    border-radius: 4px;
    resize: vertical;
    font-size: 16px;
    font-family: inherit;
    margin-bottom: 15px;
    box-sizing: border-box;
    background-color: var(--card-bg);
    color: var(--text-primary);
}

#messageText:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(255, 107, 53, 0.2);
}

.input-footer {
    display: flex;
    gap: 15px;
    align-items: center;
}

#userName {
    flex: 1;
    padding: 10px 12px;
    border: 1px solid var(--module-shadow);
    border-radius: 4px;
    font-size: 14px;
    box-sizing: border-box;
    background-color: var(--card-bg);
    color: var(--text-primary);
}

#userName:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(255, 107, 53, 0.2);
}

.submit-btn {
    background-color: var(--accent-color);
    color: white;
    border: none;
    padding: 10px 24px;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.submit-btn:hover {
    background-color: var(--nav-link-active-bg);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
}

.submit-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(255, 107, 53, 0.3);
}

.submit-btn:disabled {
    background-color: var(--text-secondary);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* 留言列表 */
.message-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.message-item {
    background-color: var(--card-bg);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--module-shadow);
    transition: all 0.3s ease;
}

.message-item:hover {
    box-shadow: 0 4px 15px var(--module-hover-shadow);
    transform: translateY(-2px);
}

.message-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.user-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 16px;
}

.message-time {
    color: var(--text-secondary);
    font-size: 14px;
}

.message-content {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 15px;
    word-break: break-word;
}

/* 无留言状态 */
.no-messages {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
    font-size: 16px;
    background-color: var(--bottom-menu-hover-bg);
    border-radius: 8px;
    border: 2px dashed var(--module-shadow);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .message-container {
        padding: 15px;
    }
    
    .message-input {
        padding: 15px;
    }
    
    .input-footer {
        flex-direction: column;
        align-items: stretch;
    }
    
    .submit-btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .message-container {
        padding: 10px;
    }
    
    .message-item {
        padding: 15px;
    }
    
    .user-name {
        font-size: 15px;
    }
    
    .message-time {
        font-size: 13px;
    }
    
    .message-content {
        font-size: 14px;
    }
}