* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif;
    line-height: 1.6;
    color: #333;
}

.container {
    width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

.navbar {
    background: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.nav-container {
    width: 1000px;
    margin: 0 auto;
    padding: 30px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo img {
    height: 40px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: #333;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

.nav-menu {
    list-style: none;
    display: flex;
    gap: 50px;
}

.nav-menu li a {
    text-decoration: none;
    color: #333;
    font-size: 16px;
    transition: color 0.3s;
}

.nav-menu li a:hover {
    color: #4CAF50;
}

.nav-menu li a.active {
    color: #4CAF50;
    font-weight: bold;
    position: relative;
}

.nav-menu li a.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 3px;
    background: #4CAF50;
}

.hero-section {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

/* .hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('image/banner-bg.jpg') center/cover no-repeat;
    filter: brightness(0.9);
} */
.hero-bg {
    /* position: absolute; */
    width: 100%;
    height: 100%;
    z-index: 0;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}
.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 移动端 Hero 区域适配 */
@media (max-width: 768px) {
    .hero-section {
        height: auto;
        min-height: 100vh;
        padding-top: 80px;
        display: block;
    }

    .hero-bg {
        position: absolute;
        width: 100%;
        height: 100%;
        top: 0;
        left: 0;
    }

    .hero-bg img {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .hero-content {
        position: relative;
        z-index: 1;
        padding: 60px 15px;
        bottom: auto;
    }

    .hero-desc {
        width: 100%;
        font-size: 14px;
    }

    .hero-desc p {
        color: #fff;
    }
}

.hero-content {
    position: absolute;
    z-index: 1;
    padding: 0 20px;
    bottom: 20%;
}

.hero-desc {
    width: 1000px;
    margin: 0 auto;
    font-size: 17px;
    line-height: 1.5;
    opacity: 0.9;
}
.hero-desc p{
    color: #ccc;
}


.stats-section {
    padding: 80px 0;
    padding-bottom: 10px;
    background: #f9f9f9;
    width: 100%;
}

.stats-title {
    text-align: center;
    color: #333;
    font-weight: bold;
    font-size: 20px;
    margin-bottom: 80px;
}

.stats-container {
    width: 1000px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;

}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.stat-number {
    font-size: 32px;
    font-weight: 700;
    color: #459137;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: #333;
    font-weight: bold;
}

.partner-section{
    width: 1000px;
    margin: 60px auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.partner-left {
    width: 350px;
}
.partner-left p {
    line-height: 2;
    color: #666;
    font-size: 15px;
    text-align: justify;
    text-indent: 2em;
}
.partner-line{
    display: flex;
    height: 240px;
    width: 1px;
    background: #ddd;
    /* margin: auto 10%; */
}

.partner-right {
    width: 450px;
}
.partner-right .partner-item {
    display: flex;
    align-items: baseline;
}
.partner-right h3 {
    color: #444;
    font-size: 20px;;
}
.partner-subtitle {
    font-size: 12px;
    color: #666;
    margin-left: 10px;
}

.partner-logos {
    margin-top: 10px;
    width: 100%;
}
.partner-logos img {
    width: 100%;
}

.advantage-section {
    padding: 80px 0;
    background: white;
}

.advantage-section h2 {
    text-align: center;
    color: #333;
    margin-bottom: 80px;
    font-size: 24px;
    font-weight: 500;
}

.advantage-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    width: 1000px;
    justify-content: space-between;
}

.advantage-item {
    display: flex;
    align-items: flex-start;
    /* gap: 15px;
    padding: 20px;
    background: #f9f9f9;
    border-radius: 8px;
    transition: box-shadow 0.3s; */
}

.advantage-item:hover {
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.advantage-img {
    flex-shrink: 0;
    width: 130px;
    height: 100px;
    /* border-radius: 3px; */
    overflow: hidden;
}

.advantage-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.advantage-text {
    margin-left: 15px;
}
.advantage-text h4 {
    color: #333;
    margin-bottom: 8px;
    font-size: 16px;
}

.advantage-text ul {
    margin:5px 0;
    list-style: none;
}
.advantage-text ul li {
    font-size: 11px;
    color: #666;
}



.philosophy-section {
    padding: 80px 0;
    background: #f9f9f9;
}

.philosophy-section h2 {
    text-align: center;
    color: #333;
    margin-bottom: 80px;
    font-size: 24px;
    font-weight: 500;
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    width: 1000px;
    margin: 0 auto;
}

.philosophy-item {
    text-align: center;
}

.philosophy-card {
    position: relative;
    width: 100%;
    height: 280px;
    /* border-radius: 8px; */
    overflow: hidden;
    margin-bottom: 15px;
}

.philosophy-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.philosophy-text {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.2);
}

.philosophy-text h4 {
    color: rgb(233, 220, 220);
    font-size: 30px;
    font-weight: 500;
    letter-spacing: 15px;
    writing-mode: vertical-rl;
    text-orientation: mixed;
}

.philosophy-desc {
    color: #666;
    font-size: 14px;
    line-height: 1.8;
    text-align: center;
}


.brand-section {
    background: white;
    position: relative;
    overflow: hidden;
}

.brand-content {
    position: relative;
    z-index: 1;
    width: 1000px;
    padding: 100px 0;
}
.brand-content-header {
    display: flex;
    align-items: baseline;
}
.brand-content h2 {
    color: #459137;
    font-size: 40px;
    letter-spacing: 5px;
}

.brand-content p {
    color: #666;
    line-height: 2;
    font-size: 14px;
    text-align: justify;
}

.brand-tagline {
    color: #459137;
    font-size: 16px;
    font-weight: bold;
    margin-top: 50px;
}

.brand-bg-decoration {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 400px;
    background: url('image/brand-bg.jpg') no-repeat right center;
    background-size: contain;
}

.contact-section {
    padding: 80px 0;
    position: relative;
}

.contact-section h2 {
    text-align: center;
    color: #333;
    margin-bottom: 60px;
    font-size: 24px;
    font-weight: 500;
}

.contact-content {
    display: flex;
    width: 1000px;
    align-items: flex-end;
    justify-content: space-between;
}

.contact-form {
    width: 450px;
}

.form-row {
    display: flex;
    gap: 20px;
}

.form-group {
    margin-bottom: 20px;
    flex: 1;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-size: 14px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
    transition: border-color 0.3s;
    background: #f9f9f9;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #4CAF50;
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}
.submit-btns{
    display: flex;
    justify-content: flex-end;
}
.submit-btn {
    width: 120px;
    padding: 10px;
    background: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.3s;
}

.submit-btn:hover {
    background: #45a049;
}


.contact-details{
    width: 450px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin-bottom: 50px;
}
.contact-details h3 {
    color: #333;
    margin-bottom: 10px;
    font-size: 16px;
}

.contact-details p {
    margin-bottom: 30px;
    color: #666;
    font-size: 14px;
    line-height: 1.8;
}

.qrcode-section {
    background: #f9f9f9;
    padding: 40px 0;
    display: none;
}

.qrcode-content {
    display: flex;
    justify-content: center;
    gap: 60px;
}

.qrcode-item {
    text-align: center;
    width: 40%;
    height: 100%;
}

.qrcode-item img {
    width: 100%;
    height: 100%;
    border-radius: 8px;
}

.qrcode-item p {
    font-size: 14px;
    color: #666;
    margin-top: 10px;
}

.contact-qrcode {
    position: fixed;
    right: 10px;
    bottom: 60px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    padding: 20px;
    border-radius: 10px;
    width: 300px;
    display: flex;
    gap: 20px;
    transition: right 0.3s ease;
    background: #fff;
    z-index: 999;
}

.contact-qrcode h3 {
    color: #333;
    margin-bottom: 15px;
    font-size: 16px;
    font-weight: 500;
}

.contact-qrcode img {
    width: 120px;
    height: 120px;
}

.contact-qrcode p {
    font-size: 12px;
    color: #666;
    margin-top: 8px;
    text-align: center;
}

.footer {
    margin-top: 50px;
    background: #4CAF50;
    color: white;
    padding: 30px 20px;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 1000px;
    margin: 0 auto;
}
.footer-content a {
    color: white;
    text-decoration: none;
}


.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: #4CAF50;
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    display: none;
    z-index: 9999;
    transition: background 0.3s, transform 0.3s;
}

.scroll-to-top:hover {
    background: #45a049;
    transform: scale(1.1);
}

@media (max-width: 768px) {
    .container {
        width: 100%;
        padding: 0 15px;
    }

    /* 导航栏移动端适配 */
    .nav-container {
        width: 100%;
        padding: 15px;
        position: relative;
    }

    .nav-logo img {
        height: 30px;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        gap: 0;
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
        z-index: 1000;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li a {
        display: block;
        padding: 15px 20px;
        font-size: 14px;
        border-bottom: 1px solid #eee;
    }

    .nav-menu li a.active::after {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    /* Hero区域移动端适配 */
    .hero-section {
        height: auto;
        min-height: 100vh;
        padding: 80px 0 60px;
    }

    .hero-bg {
        background: url('image/banner-bg.jpg') center/cover no-repeat;
    }

    .hero-content {
        /* position: relative; */
        bottom: 10%;
        padding: 20px;
    }

    .hero-desc {
        width: 100%;
        font-size: 14px;
    }

    .hero-desc p {
        color: #fff;
    }

    /* 数据统计区域移动端适配 */
    .stats-section {
        padding: 40px 0;
    }

    .stats-title {
        font-size: 16px;
        margin-bottom: 40px;
        padding: 0 15px;
    }

    .stats-container {
        width: 100%;
        flex-direction: column;
        align-items: center;
        gap: 25px;
    }

    .stat-item {
        width: 100%;
        padding: 10px 0;
    }

    .stat-number {
        font-size: 26px;
    }

    /* 合作区域移动端适配 */
    .partner-section {
        width: 100%;
        flex-direction: column;
        margin: 30px auto;
        padding: 0 15px;
        gap: 30px;
    }

    .partner-left {
        width: 100%;
    }

    .partner-left p {
        font-size: 13px;
        line-height: 1.8;
    }

    .partner-line {
        display: none;
    }

    .partner-right {
        width: 100%;
    }

    .partner-right .partner-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }

    .partner-subtitle {
        margin-left: 0;
    }

    .partner-logos img {
        width: 100%;
        height: auto;
    }

    /* 核心优势区域移动端适配 */
    .advantage-section {
        padding: 40px 0;
    }

    .advantage-section h2 {
        font-size: 20px;
        margin-bottom: 40px;
    }

    .advantage-grid {
        width: 100%;
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 15px;
    }

    .advantage-item {
        flex-direction: column;
    }

    .advantage-img {
        width: 100%;
        height: 180px;
    }

    .advantage-text {
        margin-left: 0;
        margin-top: 10px;
    }

    .advantage-text h4 {
        font-size: 15px;
    }

    .advantage-text ul li {
        font-size: 12px;
    }

    /* 品牌理念区域移动端适配 */
    .philosophy-section {
        padding: 40px 0;
    }

    .philosophy-section h2 {
        font-size: 20px;
        margin-bottom: 40px;
    }

    .philosophy-grid {
        width: 100%;
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
        padding: 0 15px;
    }

    .philosophy-card {
        height: 180px;
    }

    .philosophy-text h4 {
        font-size: 18px;
        letter-spacing: 5px;
    }

    .philosophy-desc {
        font-size: 11px;
        line-height: 1.5;
    }

    /* 品牌介绍区域移动端适配 */
    .brand-section {
        padding: 0 15px;
    }

    .brand-content {
        width: 100%;
        padding: 60px 0;
    }

    .brand-content-header {
        flex-direction: column;
        gap: 10px;
    }

    .brand-content h2 {
        font-size: 28px;
        letter-spacing: 2px;
    }

    .brand-content p {
        font-size: 13px;
    }

    .brand-tagline {
        font-size: 14px;
        margin-top: 30px;
    }

    .brand-bg-decoration {
        display: none;
    }

    /* 联系我们区域移动端适配 */
    .contact-section {
        padding: 40px 0;
    }

    .contact-section h2 {
        font-size: 20px;
        margin-bottom: 30px;
    }

    .contact-content {
        width: 100%;
        flex-direction: column;
        padding: 0 15px;
    }

    .contact-form {
        width: 100%;
    }

    .contact-details {
        width: 100%;
        margin-top: 30px;
        margin-bottom: 0;
        align-items: flex-start;
        text-align: left;
    }

    .contact-details p {
        text-align: left;
    }

    /* 表单提交按钮移动端居中 */
    .submit-btns {
        justify-content: center;
    }

    /* 底部移动端适配 */
    .footer {
        padding: 20px 15px;
    }

    .footer-content {
        width: 100%;
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }

    .footer-content p,
    .footer-content a {
        font-size: 12px;
    }

    /* 右下角二维码移动端适配 */
    .contact-qrcode {
        width: 160px;
        padding: 10px;
        bottom: 20px;
        right: 5px;
        gap: 10px;
    }

    .contact-qrcode img {
        width: 60px;
        height: 60px;
    }

    .contact-qrcode p {
        font-size: 10px;
    }

    /* 回到顶部按钮移动端适配 */
    .scroll-to-top {
        bottom: 20px;
        right: 15px;
        width: 40px;
        height: 40px;
        font-size: 18px;
    }

    /* 移动端显示footer上方二维码，隐藏右下角二维码 */
    .qrcode-section {
        display: block;
    }

    .qrcode-content {
        gap: 30px;
    }

    .qrcode-item img {
        width: 100%;
        height: 150px;
    }

    .contact-qrcode {
        display: none;
    }
}

/* 超小屏幕适配 */
@media (max-width: 375px) {
    .philosophy-grid {
        grid-template-columns: 1fr;
    }

    .philosophy-card {
        height: 200px;
    }

    .advantage-img {
        height: 150px;
    }

    .qrcode-content {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }
}
.primary-color {
    color: #459137;
}
.mt10{
    margin-top: 10px;
}
.mt20{
    margin-top: 20px;
}
.mt30{
    margin-top: 30px;
}
.mt40{
    margin-top: 40px;
}
.mt50{
    margin-top: 50px;
}

.mb10{
    margin-bottom: 10px;
}
.mb20{
    margin-bottom: 20px;
}
.mb30{
    margin-bottom: 30px;
}
.mb40{
    margin-bottom: 40px;
}
.ml10{
    margin-left: 10px;
}
.ml20{
    margin-left: 20px;
}
.ml30{
    margin-left: 30px;
}
.ml40{
    margin-left: 40px;
}
.mr10{
    margin-right: 10px;
}
.mr20{
    margin-right: 20px;
}
.mr30{
    margin-right: 30px;
}
.mr40{
    margin-right: 40px;
}


.flex{
    display: flex;
}
.flex-column{
    flex-direction: column;
}

.flex-center{
    display: flex;
    justify-content: center;
    align-items: center;
}