/* 留言板容器样式 */
.message-board-container {
    max-width: 1600px;
    margin: 40px auto 60px;
    padding: 0 20px;
}

.message-board {
    background-color: #ffffff;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    padding: 40px;
    border: none;
}

.message-board h2 {
    font-size: 28px;
    color: #2c3e50;
    margin-bottom: 15px;
    text-align: center;
}

.message-board p {
    color: #666;
    text-align: center;
    margin-bottom: 30px;
    font-size: 15px;
    line-height: 1.6;
}

/* 表单样式 */
.message-form-row {
    display: flex;
    gap: 25px;
    margin-bottom: 25px;
}

.message-form-group {
    margin-bottom: 25px;
    flex: 1;
}

.message-form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 500;
    color: #2c3e50;
    font-size: 15px;
}

.required {
    color: #ff6634;
    margin-left: 4px;
}

.message-form-group input,
.message-form-group textarea {
    width: 100%;
    padding: 14px;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    font-size: 15px;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

.message-form-group textarea {
    height: 150px;
    resize: vertical;
}

.message-form-group input:focus,
.message-form-group textarea:focus {
    border-color: #ff6634;
    background: #fff;
    box-shadow: 0 0 0 4px rgba(255, 102, 52, 0.1);
    outline: none;
}

.message-form-group input::placeholder,
.message-form-group textarea::placeholder {
    color: #a0aec0;
    font-size: 15px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; /* 统一系统字体 */
    font-weight: normal; /* 统一字体粗细 */
    letter-spacing: normal; /* 统一字间距 */
}

.submit-btn {
    background: linear-gradient(45deg, #ff6634, #ff8057);
    color: white;
    border: none;
    border-radius: 10px;
    padding: 12px 30px;  /* 减小内边距 */
    font-size: 15px;    /* 减小字体大小 */
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 160px;      /* 减小按钮宽度 */
    box-shadow: 0 4px 15px rgba(255, 102, 52, 0.2);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 102, 52, 0.3);
}

/* 消息样式 */
/* 留言板消息提示样式 */
.message-result {
    margin-top: 15px;
    padding: 10px;
    border-radius: 4px;
    display: none;
}

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

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

.hidden {
    display: none !important;
}

/* 留言板布局样式 */
.message-board textarea {
    height: 100px;
}

.message-form-group {
    margin-bottom: 15px;
}

.message-board-container {
    padding: 20px 0;
}

.message-board {
    padding: 20px;
}

.message-result.message-error {
    background-color: #fff5f5;
    color: #e53e3e;
    border: 1px solid #fed7d7;
}

.message-result.message-success {
    background-color: #f0fff4;
    color: #38a169;
    border: 1px solid #c6f6d5;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .message-board {
        padding: 25px;
        border-radius: 12px;
    }
    
    .message-form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .submit-btn {
        width: 100%;
        max-width: none;
    }
}


/* 标题图标样式 */
.message-board h2 i {
    color: #ff6634;
    margin-right: 10px;
    font-size: 28px;
}

/* 表单标签图标样式 */
.message-form-group label i {
    color: #ff6634;
    margin-right: 8px;
    width: 20px;
    text-align: center;
    transition: transform 0.3s ease;
}

/* 输入框获得焦点时图标效果 */
.message-form-group input:focus + label i,
.message-form-group textarea:focus + label i {
    transform: scale(1.1);
}

/* 提交按钮图标样式 */
.submit-btn i {
    margin-right: 8px;
    font-size: 16px;
}

/* 悬浮时图标效果 */
.message-form-group:hover label i {
    transform: translateY(-2px);
}


/* 验证码输入框样式 */
.captcha-container {
    margin-bottom: 25px;
}

.captcha-container label {
    display: block;
    margin-bottom: 10px;
    font-weight: 500;
    color: #2c3e50;
    font-size: 15px;
}

.captcha-wrapper {
    display: flex;
    align-items: center;
    gap: 15px;
}

.captcha-wrapper input {
    width: 180px !important;
    flex-shrink: 0;
}

.captcha-wrapper .captcha-code {
    font-family: 'Courier New', monospace;
    font-size: 20px;
    font-weight: bold;
    letter-spacing: 3px;
    color: #ff6634;
    padding: 0 10px;
    text-decoration: line-through;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.2);
    transform: skewX(-10deg);
    background: linear-gradient(to right, #ff6634, #ff8057);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.captcha-wrapper .refresh-captcha {
    background: none;
    border: none;
    color: #ff6634;
    font-size: 18px;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.captcha-wrapper .refresh-captcha:hover {
    transform: rotate(180deg);
}

.captcha-wrapper .submit-btn {
    margin-left: auto;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .captcha-wrapper {
        flex-wrap: wrap;
    }
    
    .captcha-wrapper input {
        width: 100% !important;
        margin-bottom: 15px;
    }
    
    .captcha-wrapper .submit-btn {
        margin-left: 0;
        width: 100%;
    }
}