.footer {
    background-color: rgba(41, 49, 62, 1);
    width: 100%;
    margin-top: -1px;
}

.footer_main_content {
    width: var(--set-width);
    margin: 40px auto;
    display: flex;
    gap: 60px;
    align-items: flex-start;
}

.footer_left_section {
    flex: 1;
    min-width: 0;
}

.footer_right_section {
    flex: 1;
    min-width: 0;
}

.footer_logo {
    margin-bottom: 30px;
}

.footer_logo_image {
    width: 270px;
    height: 60px;
}

.footer_info_grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 25px;
}

.footer_contact {
    width: 100%;
    height: auto;
}

.footer_dividing_line_image {
    width: 100%;
    height: 1px;
    margin-top: 40px;
    margin-bottom: 24rpx;
}

.footer_copyright {
    width: var(--set-width);
    margin: 24px auto;
    display: flex;
    justify-content: space-between;
}

/* 留言板样式 */
.message_board {
    width: 100%;
    padding: 25px;
    background-color: rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.message_title {
    text-align: left;
    margin-bottom: 25px;
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 15px;
}

.message_title h3 {
    color: #ffffff;
    font-size: 22px;
    margin-bottom: 8px;
    font-weight: 600;
}

.message_title p {
    color: #cccccc;
    font-size: 13px;
    margin: 0;
    opacity: 0.9;
}

.message_form {
    width: 100%;
}

.form_row {
    display: flex;
    gap: 15px;
    margin-bottom: 18px;
}

.form_group {
    flex: 1;
}

.form_group.full_width {
    width: 100%;
    margin-bottom: 18px;
}

.form_group label {
    display: block;
    color: #ffffff;
    font-size: 13px;
    margin-bottom: 6px;
    font-weight: 500;
}

.form_group input,
.form_group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 6px;
    background-color: rgba(255, 255, 255, 0.12);
    color: #ffffff;
    font-size: 13px;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.form_group input::placeholder,
.form_group textarea::placeholder {
    color: rgba(255, 255, 255, 0.6);
    font-size: 12px;
}

.form_group input:focus,
.form_group textarea:focus {
    outline: none;
    border-color: #007bff;
    background-color: rgba(255, 255, 255, 0.18);
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.2);
}

.form_group textarea {
    resize: vertical;
    min-height: 90px;
    font-family: inherit;
}

.form_submit {
    text-align: right;
    margin-top: 20px;
}

.submit_btn {
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    color: #ffffff;
    border: none;
    padding: 10px 30px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 123, 255, 0.3);
}

.submit_btn:hover {
    background: linear-gradient(135deg, #0056b3 0%, #004085 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.4);
}

.submit_btn:disabled {
    background: #6c757d;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .footer_main_content {
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .footer_main_content {
        flex-direction: column;
        gap: 30px;
        margin: 30px auto;
    }
    
    .footer_left_section,
    .footer_right_section {
        flex: none;
        width: 100%;
    }
    
    .message_board {
        padding: 20px;
    }
    
    .form_row {
        flex-direction: column;
        gap: 0;
    }
    
    .form_group {
        margin-bottom: 15px;
    }
    
    .message_title h3 {
        font-size: 20px;
    }
    
    .form_submit {
        text-align: center;
    }
    
    .submit_btn {
        width: 100%;
        padding: 12px;
    }
}

@media (max-width: 480px) {
    .footer_main_content {
        margin: 20px auto;
        padding: 0 15px;
    }
    
    .message_board {
        padding: 15px;
    }
    
    .message_title h3 {
        font-size: 18px;
    }
    
    .form_group input,
    .form_group textarea {
        padding: 8px 10px;
        font-size: 12px;
    }
    
    .form_group textarea {
        min-height: 80px;
    }
}