/* 全局重置 */
* {margin:0;padding:0;box-sizing:border-box}
body {
    background:#ffffff;
    background-image:linear-gradient(180deg,#f0f9f5 0%,#ffffff 100%);
    font-family:"Microsoft YaHei",sans-serif;
    color:#333;
}
.container {width:1400px;margin:0 auto;padding:0 20px}
img {max-width:100%;display:block}
ul,li {list-style:none}
a {text-decoration:none;color:inherit}
input,textarea {border:1px solid #dde8e2;padding:12px;font-size:15px;background:#fff;border-radius:4px;outline:none;transition:0.3s}
input:focus,textarea:focus {border-color:#00a850;box-shadow:0 0 0 3px rgba(0,168,80,0.1)}
:root{
    --main-green:#007738;
    --light-green:#00c85a;
    --light-blue:#e6f5ff;
    --gray:#666;
    --light-gray:#f0f3f1;
    --dark:#1a1a1a;
    --text-light:#888;
    --radius:8px;
}
.green-btn {
    background:var(--main-green);
    color:#fff;
    border:none;
    padding:12px 30px;
    font-size:16px;
    cursor:pointer;
    transition:all 0.3s ease;
    border-radius:var(--radius);
}
.green-btn:hover {
    background:var(--light-green);
    transform:translateY(-2px);
    box-shadow:0 4px 12px rgba(0,119,56,0.25)
}
.full-btn {width:100%}
.scroll-animate {
    opacity:0;
    transform:translateY(50px);
    transition:all 0.9s cubic-bezier(0.22, 1, 0.36, 1);
    transition-delay:0.12s;
}
.scroll-animate.show {opacity:1;transform:translateY(0)}
.header {
    width:100%;height:72px;line-height:72px;
    background:#fff;border-bottom:1px solid #e1ebe6;
    position:sticky;top:0;z-index:999;
}
.nav-box {display:flex;justify-content:space-between;align-items:center}
.nav-logo {display:flex;align-items:center;gap:10px;font-weight:bold;font-size:18px;color:var(--main-green)}
.nav-logo img {height:48px}
/* 新增logo文字全局样式：放大字号+加宽字间距 */
.logo-text {
    font-size: 24px;
    letter-spacing: 3px;
    font-weight: 700;
}
.nav-menu {display:flex;gap:36px;position:relative}
.nav-menu a {
    font-size:17px;position:relative;color:#333;padding:0 4px;
    transition:color 0.3s
}
.nav-menu a:hover {color:var(--main-green)}
.nav-menu a.active::after {
    content:"";width:100%;height:2px;background:var(--main-green);
    position:absolute;bottom:-5px;left:0
}
.nav-dropdown-wrap {position:relative}
.nav-submenu {
    position:absolute;top:72px;left:0;width:160px;
    background:#fff;box-shadow:0 4px 15px rgba(0,0,0,0.08);
    display:none;flex-direction:column;gap:0;
    border-radius:var(--radius);
    overflow:hidden;
    opacity:0;
    transform:translateY(10px);
    transition:all 0.3s ease;
}
.nav-dropdown-wrap:hover .nav-submenu {
    display:flex;
    opacity:1;
    transform:translateY(0);
}
.nav-submenu a {display:block;padding:12px 16px;border-bottom:1px solid #f0f3f1;line-height:1.5}
.nav-submenu a:last-child {border-bottom:none}
.nav-submenu a:hover {background:var(--light-gray)}
.nav-right {display:flex;gap:24px;font-size:18px;color:var(--gray);align-items:center}
.lang-switch {position:relative;font-size:14px;cursor:pointer}
.lang-sub {
    position:absolute;top:36px;right:0;background:#fff;
    box-shadow:0 3px 10px rgba(0,0,0,0.08);
    padding:10px 14px;display:none;border-radius:var(--radius);
}
.lang-switch:hover .lang-sub {display:block}
.banner {width:100%;height:900px;position:relative;overflow:hidden}
.banner-mask {
    position:absolute;left:0;top:0;width:100%;height:100%;
    background:linear-gradient(to right,rgba(0,0,0,0.55),rgba(0,0,0,0.15));
    z-index:1.5;
}
.banner-prev,.banner-next {
    position:absolute;top:50%;z-index:3;width:50px;height:50px;
    background:rgba(255,255,255,0.2);color:#fff;
    font-size:22px;text-align:center;line-height:50px;
    transform:translateY(-50%);cursor:pointer;
    border-radius:50%;transition:0.3s
}
.banner-prev:hover,.banner-next:hover {background:rgba(0,0,0,0.4)}
.banner-prev {left:30px}
.banner-next {right:30px}
.banner-dots {
    position:absolute;bottom:40px;left:50%;transform:translateX(-50%);
    display:flex;gap:12px;z-index:3
}
.banner-dot {width:14px;height:14px;border-radius:50%;background:rgba(255,255,255,0.4);cursor:pointer}
.banner-dot.active {background:#fff}
.banner-slider {width:100%;height:100%;position:absolute;left:0;top:0;z-index:1}
.slide-item {width:100%;height:100%;position:absolute;left:0;top:0;opacity:0;transition:opacity 1.2s ease}
.slide-item.active {opacity:1}
.parallax-img {width:100%;height:100%;object-fit:cover;will-change:transform;transition:transform 0.06s linear}
/* Banner文字容器 预留下移空间 */
.banner-text-wrap {position:absolute;left:0;top:0;height:100%;z-index:2;padding-top:120px}
.green-tag {display:inline-block;background:#e6f8ee;color:var(--main-green);padding:7px 18px;border-radius:99px;font-size:15px;margin-bottom:26px}
.title-animate {opacity:0;transform:translateX(-60px);transition:all 1s cubic-bezier(0.22, 1, 0.36, 1)}
.title-animate.show {opacity:1;transform:translateX(0)}
/* Banner主标题 醒目优化 适配深浅两张背景 */
.main-title {
    font-size: 66px;
    line-height: 1.7;
    color: #f3f5f7;
    font-weight: 700;
    letter-spacing: 3px;
    font-family: "Microsoft YaHei", sans-serif;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.8), -1px -1px 2px rgba(0,0,0,0.8), 1px -1px 2px rgba(0,0,0,0.8), -1px 1px 2px rgba(0,0,0,0.8);
}
/* 按钮优化 更醒目 */
.banner-btn {
    margin-top:40px;padding:15px 38px;background:rgba(255,255,255,0.92);
    display:inline-block;cursor:pointer;font-size:18px;color:#333;position:relative;
    transition:0.3s;border-radius:var(--radius);
    font-weight:500;
}
.banner-btn:hover {
    background:#fff;
    box-shadow:0 4px 12px rgba(0,0,0,0.2);
}
.banner-btn span {position:absolute;right:16px;top:50%;transform:translateY(-50%)}
/* 数据统计模块【修复居中，限制宽度，两栏均匀不跑偏】 */
.data-section {
    padding:60px 0;
    background:linear-gradient(135deg,var(--main-green),#008c40);
    color:#fff
}
.data-wrap {
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap: 120px;
    text-align:center;
    max-width: 700px;
    margin: 0 auto;
}
.num-count {font-size:52px;font-weight:bold;color:#fff;margin-bottom:10px}
.data-item p {font-size:16px;opacity:0.9}
.section {padding:90px 0;position:relative}
.section-head {display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:50px;position:relative}
/* 下调字号至36px，适配宽度实现理想换行效果 */
.section-title {
    font-size:36px;
    text-align:left;
    line-height:1.65;
    position:relative;
    z-index:2;
    color:#1a1a1a;
    letter-spacing: -0.6px;
    word-break: normal;
}
.section-sub-en {display:block;font-size:16px;color:var(--text-light);margin-top:8}
.section-bg-text {
    position:absolute;left:0;bottom:-12px;font-size:120px;
    color:rgba(0,119,56,0.06);font-weight:bold;z-index:1;
    user-select:none;pointer-events:none;letter-spacing:4px;
}
.more-box {text-align:right;margin-top:30px}
.more-link {color:var(--main-green);font-size:16px;padding-bottom:3px;border-bottom:1px solid var(--main-green);transition:0.3s}
.more-link:hover {color:var(--light-green)}
.service-tag {background:#e6f8ee;color:var(--main-green);padding:6px 16px;border-radius:20px;font-size:14px;display:inline-block;margin-bottom:12px}
.service-head-wrap {display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:60px}
.service-btn {padding:14px 32px;background:var(--light-gray);display:inline-block;transition:0.3s;border-radius:var(--radius)}
.service-btn:hover {background:#dde8e2}
.solution-wrap {display:flex;gap:50px;align-items:center}
.solution-left-list {width:320px}
.sol-item {padding:18px 0;font-size:18px;border-bottom:1px solid #dde8e2;cursor:pointer;transition:0.3s;color:#333}
.sol-item.active {color:var(--main-green);padding-left:10px;border-left:3px solid var(--main-green)}
.solution-right {flex:1;position:relative}
.sol-img-wrap {width:100%;height:420px;overflow:hidden;position:relative;border-radius:var(--radius)}
.sol-img-item {width:100%;height:100%;position:absolute;top:0;left:0;opacity:0;transition:opacity 0.6s ease}
.sol-img-item.active {opacity:1}
.sol-img-item img {width:100%;height:100%;object-fit:cover}
.sol-dots {display:flex;gap:10px;justify-content:center;margin-top:20px}
.sol-dot {width:12px;height:12px;border-radius:50%;background:#dde8e2;cursor:pointer}
.sol-dot.active {background:var(--main-green)}
.case-wrap {display:flex;gap:50px;align-items:center}
.case-left-list {width:320px}
.case-item {padding:18px 0;font-size:18px;border-bottom:1px solid #dde8e2;cursor:pointer;transition:0.3s;color:#333}
.case-item.active {color:var(--main-green);padding-left:10px;border-left:3px solid var(--main-green)}
.case-right {flex:1;position:relative}
.case-img-wrap {width:100%;height:420px;overflow:hidden;position:relative;border-radius:var(--radius)}
.case-img-item {width:100%;height:100%;position:absolute;top:0;left:0;opacity:0;transition:opacity 0.6s ease}
.case-img-item.active {opacity:1}
.case-img-item img {width:100%;height:100%;object-fit:cover}
.case-dots {display:flex;gap:10px;justify-content:center;margin-top:20px}
.case-dot {width:12px;height:12px;border-radius:50%;background:#dde8e2;cursor:pointer}
.case-dot.active {background:var(--main-green)}
.service-grid {display:grid;grid-template-columns:repeat(7,1fr);gap:20px}
.service-item {text-align:center;padding:30px 10px;border:1px solid #dde8e2;background:#fff;transition:0.3s;border-radius:var(--radius);cursor:pointer}
.service-item:hover {border-color:var(--main-green);transform:translateY(-4px);box-shadow:0 6px 16px rgba(0,119,56,0.08)}
.service-icon {font-size:36px;margin-bottom:16px;color:var(--main-green)}
.product-grid {display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.product-card {
    overflow:hidden;background:#fff;box-shadow:0 2px 12px rgba(0,0,0,0.05);
    transition:all 0.3s ease;cursor:pointer;border-radius:var(--radius);
}
.product-card:hover {transform:translateY(-8px);box-shadow:0 8px 24px rgba(0,0,0,0.1)}
.product-card:hover img {transform:scale(1.05)}
.product-card img {height:220px;width:100%;object-fit:cover;transition:transform 0.4s ease}
.product-card h3 {padding:16px;font-size:17px;color:#1a1a1a}
.news-list {width:800px}
.news-item {
    padding:20px 0;border-bottom:1px solid #dde8e2;display:flex;gap:30px;align-items:center;
    cursor:pointer;transition:0.3s
}
.news-item:hover h3 {color:var(--main-green)}
.news-date {color:var(--text-light);width:120px}
.about-wrap,.contact-wrap {display:flex;gap:50px;align-items:center}
.about-img,.contact-info {width:50%}
.about-text,.contact-form {width:50%}
.about-text h3,.contact-info h3 {font-size:24px;margin-bottom:20px;color:var(--main-green)}
.about-text p,.contact-info p {line-height:1.8;margin-bottom:10px;font-size:16px;color:#444}
.contact-form {display:flex;flex-direction:column;gap:15px}
.contact-form textarea {height:140px;resize:none}
.inner-banner {
    width:100%;height:320px;
    background:linear-gradient(rgba(0,119,56,0.7),rgba(0,119,56,0.7)),url("img/banner/inner-bg.jpg") center / cover;
    display:flex;align-items:center;justify-content:center;
    color:#fff;font-size:42px;font-weight:500;position:relative
}
.inner-bread {
    position:absolute;bottom:30px;left:50%;transform:translateX(-50%);
    font-size:15px;color:rgba(255,255,255,0.8)
}
.inner-bread a {color:#fff}
.side-float {position:fixed;right:30px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;gap:12px;z-index:998}
.float-item {width:48px;height:48px;background:#fff;box-shadow:0 2px 10px rgba(0,0,0,0.08);text-align:center;line-height:48px;font-size:20px;cursor:pointer;transition:0.3s;border-radius:50%}
.float-item.top {background:var(--main-green);color:#fff}
.float-item:hover {transform:scale(1.08)}
.lightbox-mask {
    position:fixed;left:0;top:0;width:100%;height:100%;
    background:rgba(0,0,0,0.9);z-index:9999;display:none;
    align-items:center;justify-content:center;
}
.lightbox-close {position:absolute;right:40px;top:30px;color:#fff;font-size:40px;cursor:pointer}
#lightbox-img {max-width:85%;max-height:85%}
.footer {background:var(--dark);color:#ccc;padding:50px 0}
.footer-wrap {display:flex;justify-content:space-between;flex-wrap:wrap;gap:30px}
.footer-left h3 {color:#fff;margin-bottom:15px;font-size:20px}
.footer-link {display:flex;gap:24px;flex-wrap:wrap}
.footer-link a {color:#ccc;transition:0.3s}
.footer-link a:hover {color:var(--light-green)}
.footer-right {width:100%;margin-top:20px;padding-top:20px;border-top:1px solid #444;text-align:center}
.slogan-section {
    padding:80px 0;
    background:linear-gradient(120deg,#e6f5ff,#f0f9f5);
    text-align:center;
}
.slogan-main {font-size:36px;color:#1a1a1a;margin-bottom:12px}
.slogan-en {font-size:18px;color:var(--text-light);letter-spacing:2px}
.qrcode-section {
    padding:60px 0;
    background:#f0f3f1;
    text-align:center;
}
.qrcode-title {font-size:28px;color:var(--main-green);margin-bottom:30px}
.qrcode-wrap {display:flex;justify-content:center;gap:40px}
.qrcode-item {text-align:center}
.qrcode-item img {width:140px;height:140px;margin-bottom:10px;border-radius:var(--radius)}
.qrcode-item p {color:#444}
@media (max-width:1400px) {.container {width:96%}}
@media (max-width:768px) {
    .nav-menu {display:none}
    .banner {height:600px}
    .banner-text-wrap {padding-top:140px}
    .main-title {
        font-size: 34px;
        letter-spacing: 1px;
        text-shadow: 1px 1px 2px #000, -1px -1px 2px #000;
    }
    .section-title {font-size:28px}
    .section-bg-text {font-size:60px}
    .solution-wrap,.case-wrap,.about-wrap,.contact-wrap {flex-direction:column}
    .solution-left-list,.case-left-list,.about-img,.contact-info {width:100%}
    .service-grid {grid-template-columns:repeat(3,1fr)}
    .product-grid {grid-template-columns:1fr}
    .data-wrap {grid-template-columns:repeat(2,1fr);gap:60px;max-width:100%}
    .num-count {font-size:36px}
    .service-grid {grid-template-columns:repeat(2,1fr)}
    .qrcode-wrap {flex-direction:column;align-items:center}
}
.inner-banner.service-banner-img {
    height: 420px;
    background: url("img/banner/service-line.jpg") center / cover no-repeat;
    position: relative;
    display: flex;
}
.inner-banner.service-banner-img::after {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.35);
    z-index: 1;
}
.service-banner-img .inner-bread {
    position: absolute;
    right: 40px;
    top: 30px;
    z-index: 2;
    color: #fff;
    font-size: 14px;
}
.service-banner-img .inner-bread a {
    color: #fff;
    opacity: 0.85;
}
.service-banner-img .banner-text-wrap {
    position: relative;
    z-index: 2;
    color: #ffffff;
}
.service-banner-img .inner-page-title {
    font-size: 44px;
    font-weight: bold;
    margin-bottom: 16px;
}
.service-banner-img .inner-page-sub {
    font-size: 28px;
    font-weight: normal;
    line-height: 1.6;
    opacity: 0.95;
}
.inner-banner {
    height: 200px;
    background: #0f4c81;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: #fff;
    font-size: 36px;
    position: relative;
}
.inner-bread {
    position: absolute;
    top: 20px;
    font-size: 14px;
    opacity: 0.9;
}
.inner-bread a {
    color: #fff;
}
.news-title-block {
    padding: 60px 0 40px;
    background: #ffffff;
}
.news-title-block .page-sub {
    font-size: 14px;
    color: #888;
    margin-bottom: 8px;
}
.news-title-block .page-main-title {
    font-size: 42px;
    line-height: 1.3;
    color: #111;
    font-weight: bold;
}
.news-title-block .page-sub-text {
    font-size: 30px;
    color: #999;
    font-weight: normal;
}
.news-title-block .bread-nav {
    position: absolute;
    right: 20px;
    top: 80px;
    font-size: 14px;
    color: #888;
}
.news-big-banner {
    width: 100%;
    overflow: hidden;
}
.news-big-banner img {
    width: 100%;
    height: auto;
    display: block;
}
.inner-banner:not(.service-banner-img) {
    background: #0f467a !important;
    background-image: none !important;
}
.contact-title-block {
    padding: 60px 0 40px;
    background: #ffffff;
    position: relative;
}
.contact-title-block .page-sub {
    font-size: 14px;
    color: #888;
    margin-bottom: 8px;
}
.contact-title-block .page-main-title {
    font-size: 42px;
    line-height: 1.3;
    color: #111;
    font-weight: bold;
}
.contact-title-block .page-sub-text {
    font-size: 30px;
    color: #999;
    font-weight: normal;
}
.contact-title-block .bread-nav {
    position: absolute;
    right: 20px;
    top: 80px;
    font-size: 14px;
    color: #888;
}
.contact-big-banner {
    width: 100%;
    overflow: hidden;
}
.contact-big-banner img {
    width: 100%;
    height: auto;
    display: block;
}
@media (max-width:768px) {
    .contact-title-block {
        padding: 40px 0 24px;
    }
    .contact-title-block .page-main-title {
        font-size: 28px;
    }
    .contact-title-block .page-sub-text {
        font-size: 20px;
    }
    .contact-title-block .bread-nav {
        position: static;
        margin-top: 12px;
    }
}
.case-title-block {
    padding: 60px 0 40px;
    background: #ffffff;
    position: relative;
}
.case-title-block .page-sub {
    font-size: 14px;
    color: #888;
    margin-bottom: 8px;
}
.case-title-block .page-main-title {
    font-size: 42px;
    line-height: 1.3;
    color: #111;
    font-weight: bold;
}
.case-title-block .page-sub-text {
    font-size: 30px;
    color: #999;
    font-weight: normal;
}
.case-title-block .bread-nav {
    position: absolute;
    right: 20px;
    top: 80px;
    font-size: 14px;
    color: #888;
}
.case-big-banner {
    width: 100%;
    height: 420px;
    overflow: hidden;
}
.case-big-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    will-change: transform;
    transition: transform 0.06s linear;
}
@media (max-width:768px) {
    .case-title-block {
        padding: 40px 0 24px;
    }
    .case-title-block .page-main-title {
        font-size: 28px;
    }
    .case-title-block .page-sub-text {
        font-size: 20px;
    }
    .case-title-block .bread-nav {
        position: static;
        margin-top: 12px;
    }
    .case-big-banner {
        height: 260px;
    }
}
.product-four-row {
    display:grid;grid-template-columns:repeat(4,1fr);gap:30px
}
@media (max-width: 992px) {
    .product-four-row {
        grid-template-columns:repeat(2,1fr);
    }
}
@media (max-width: 576px) {
    .product-four-row {
        grid-template-columns: 1fr;
    }
}
.product-four-row .product-card {
    height: 100%;
    display: flex;
    flex-direction: column;
}
.product-four-row .product-card img {
    flex: 1;
    object-fit: cover;
    width: 100%;
}