/* 顶部 */
.header{
    display: flex;
    align-items: center;
    box-shadow: 0 2px 4px var(--shadow-color);
    background-color: var(--white-color);
    height: 80px;
}

.header .logo_pic{
    width: 40px;
    height: 40px;
}

.header .logo_name{
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
    margin-left: 12px;
}

.header .menus {
    height: 80px;
}

.header .menu_item{
    padding: 0 20px;
    height: 40px;
    font-size: 16px;
    color: var(--text-color);
    border-radius: 20px;
    transition: all 0.3s ease;
}

.header .menu_item:hover{
    color: var(--primary-color);
    background-color: #f0f0f0;
}

.header .menu_start{
    background: var(--gradient-background);
    color: var(--white-color);
    border: none;
}
.header .menu_start:hover {
    color: var(--white-color);
    opacity: 0.9;
}

/* 主体 */
.main{
    padding-top: 80px;
}

section {
    padding: 60px 0;
}

section:nth-child(odd) {
    background-color: var(--white-color);
}

.title {
    font-size: 16px;
    color: var(--secondary-color);
    margin-bottom: 8px;
    text-align: center;
}

.title_main {
    font-size: 32px;
    color: var(--text-color);
    margin-bottom: 24px;
    text-align: center;
    font-weight: bold;
}

.info {
    font-size: 16px;
    line-height: 1.8;
    color: var(--light-text-color);
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

/* Hero Section */
.hero {
    padding: 80px 0;
    background: var(--white-color);
}
.main_one {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.main_word {
    max-width: 50%;
}
.main_word .text_a {
    font-size: 48px;
    font-weight: bold;
    color: var(--text-color);
}
.main_word .text_c {
    font-size: 24px;
    color: var(--primary-color);
    margin-top: 10px;
}
.main_word .text_b {
    font-size: 16px;
    color: var(--light-text-color);
    margin-top: 20px;
    line-height: 1.8;
}
.main_word .buttons {
    margin-top: 30px;
}
.main_word .button {
    background: var(--gradient-background);
    color: var(--white-color);
    border-radius: 28px;
    padding: 0 40px;
    height: 56px;
    line-height: 56px;
    font-size: 18px;
    transition: opacity 0.3s ease;
}
.main_word .button:hover {
    opacity: 0.9;
}
.backgounr-grad .xq_1 {
    width: 400px;
    height: auto;
    border-radius: 20px;
}

/* Slogan Section */
.slogan {
    background: var(--gradient-background);
    color: var(--white-color);
    padding: 40px 0;
    text-align: center;
}
.slogan p {
    font-size: 24px;
    font-weight: bold;
}

/* About Section */
.about .content {
    padding-left: 60px;
}
.about .section_bg {
    width: 45%;
    border-radius: 20px;
}
.about .title, .about .title_main, .about .info {
    text-align: left;
    margin-left: 0;
    margin-right: 0;
}

/* Features Section */
.features .info {
    max-width: 100%;
}
.features .title, .features .title_main {
    text-align: left;
}

/* Advantages Section */
.advantages .list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}
.advantages .item {
    background: var(--white-color);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 4px 15px var(--shadow-color);
    transition: all 0.3s ease;
}
.advantages .item:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}
.advantages .item .pic {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
}
.advantages .item .text {
    font-size: 18px;
    font-weight: bold;
}

/* Vision Section */
.vision {
    background: var(--gradient-background);
}
.vision .title, .vision .info {
    color: var(--white-color);
}
.vision .title {
    opacity: 0.8;
}

/* 底部 */
.footer{
    width: 100%;
    background-color: #1c1c1c;
    color: #a9a9a9;
    padding: 60px 0 20px;
}

.footer-content{
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col .logo_pic {
    width: 40px;
    height: 40px;
}

.footer-col .logo_name {
    color: var(--white-color);
    font-size: 22px;
}

.footer-col .info {
    font-size: 14px;
    line-height: 1.6;
    margin-top: 15px;
    text-align: left;
}

.footer-col .title{
    font-size: 18px;
    color: var(--white-color);
    margin-bottom: 20px;
    text-align: left;
}

.footer-col ul li{
    margin-bottom: 12px;
    font-size: 14px;
}

.footer-col ul li a{
    color: #a9a9a9;
    transition: color 0.3s ease;
}

.footer-col ul li a:hover{
    color: var(--white-color);
}

.footer .line{
    height: 1px;
    background-color: #333;
    margin-bottom: 20px;
}

.copyright{
    text-align: center;
    font-size: 12px;
}
.copyright a{
    color: #a9a9a9;
}
.copyright a:hover{
    color: blue;
    text-decoration: underline;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .wrapper {
        width: 95%;
    }
}

@media (max-width: 992px) {
    .main_one {
        flex-direction: column;
        text-align: center;
    }
    .main_word {
        max-width: 100%;
        margin-bottom: 40px;
    }
    .main_word .text_a {
        font-size: 36px;
    }
    .about {
        text-align: center;
    }
    .about .flex {
        flex-direction: column;
    }
    .about .section_bg {
        width: 80%;
        margin: 0 auto 40px;
    }
    .about .content {
        padding-left: 0;
    }
    .about .title, .about .title_main, .about .info {
        text-align: center;
    }
    .advantages .list {
        grid-template-columns: repeat(2, 1fr);
    }
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .header .menus {
        display: none; /* 在移动端可以考虑实现一个汉堡菜单 */
    }
    .main_word .text_a {
        font-size: 32px;
    }
    .main_word .text_c {
        font-size: 20px;
    }
    .title_main {
        font-size: 28px;
    }
    .advantages .list {
        grid-template-columns: 1fr;
    }
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer-col .title, .footer-col .info {
        text-align: center;
    }
}