:root{--region-accent:#d80d18;--region-accent-rgb:216,13,24;--region-secondary:#315d73;--region-ink:#111417;--region-muted:#626a73;--region-line:#dfe3e6;--region-soft:#f4f5f6;--region-white:#fff;--region-shell:min(1200px,calc(100% - 48px))}
*{box-sizing:border-box}.region-page{margin:0;color:var(--region-ink);background:#fff;font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",system-ui,sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}.region-page img{display:block;max-width:100%}.region-page a{color:inherit;text-decoration:none}.region-page button,.region-page input,.region-page textarea{font:inherit}.region-shell{width:var(--region-shell);margin-inline:auto}.region-sr{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.region-header{position:sticky;top:0;z-index:80;height:88px;background:rgba(255,255,255,.97);border-bottom:1px solid rgba(17,20,23,.1);backdrop-filter:blur(16px)}.region-header-inner{height:100%;display:flex;align-items:center;gap:34px}.region-brand{flex:0 0 auto}.region-brand img{width:216px;height:auto}.region-nav{display:flex;align-self:stretch;align-items:center;justify-content:center;gap:clamp(18px,2vw,32px);flex:1}.region-nav a{position:relative;font-size:14px;font-weight:750;white-space:nowrap}.region-nav a:after{content:"";position:absolute;left:50%;bottom:-28px;width:0;height:3px;background:var(--region-accent);transform:translateX(-50%);transition:.2s}.region-nav a:hover:after,.region-nav a.active:after{width:28px}.region-nav a.active{color:var(--region-accent)}.region-phone{display:flex;align-items:center;gap:8px;color:var(--region-accent);font-size:19px;font-weight:900}.region-phone svg{width:22px;fill:currentColor}.region-menu{display:none;width:46px;height:46px;border:1px solid var(--region-line);background:#fff}.region-menu span{display:block;width:21px;height:2px;margin:5px auto;background:#111}
.region-hero{position:relative;min-height:660px;color:#fff;background:#111;overflow:hidden}.region-hero-media{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}.region-hero:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,8,10,.96) 0%,rgba(5,8,10,.78) 40%,rgba(5,8,10,.16) 76%)}.region-hero-copy{position:relative;z-index:2;display:flex;min-height:660px;align-items:center}.region-hero-content{max-width:720px;padding:92px 0}.region-hero h1{max-width:780px;margin:0;font-size:clamp(42px,5.1vw,72px);line-height:1.1;letter-spacing:-.035em}.region-hero p{max-width:630px;margin:25px 0 0;color:rgba(255,255,255,.78);font-size:18px}.region-actions{display:flex;gap:14px;margin-top:38px}.region-btn{display:inline-flex;min-height:52px;align-items:center;justify-content:center;padding:0 26px;border:1px solid transparent;border-radius:0;font-weight:800;cursor:pointer;transition:.2s}.region-btn-primary{color:#fff;background:var(--region-accent)}.region-btn-primary:hover{background:#b80913}.region-btn-outline{color:#fff;border-color:rgba(255,255,255,.58);background:transparent}.region-btn-outline:hover{border-color:#fff;background:#fff;color:#111}.region-hero-note{display:flex;gap:24px;margin-top:46px;padding-top:22px;border-top:1px solid rgba(255,255,255,.24);color:rgba(255,255,255,.68);font-size:13px}.region-hero-note strong{color:#fff}
.region-proof{border-bottom:1px solid var(--region-line);background:#fff}.region-proof-grid{display:grid;grid-template-columns:repeat(4,1fr)}.region-proof-grid div{min-height:112px;padding:24px 26px;border-right:1px solid var(--region-line)}.region-proof-grid div:last-child{border-right:0}.region-proof strong,.region-proof small{display:block}.region-proof strong{font-size:16px}.region-proof small{margin-top:5px;color:var(--region-muted);font-size:12px}
.region-section{padding:104px 0}.region-section-soft{background:var(--region-soft)}.region-section-dark{color:#fff;background:#11161a}.region-head{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-bottom:46px}.region-head h2{max-width:780px;margin:0;font-size:clamp(34px,4vw,54px);line-height:1.16;letter-spacing:-.03em}.region-head p{max-width:430px;margin:0;color:var(--region-muted)}.region-section-dark .region-head p{color:rgba(255,255,255,.62)}.region-index{display:block;margin-bottom:13px;color:var(--region-accent);font-size:12px;font-weight:850;letter-spacing:.12em}
.scene-rail{display:grid;grid-template-columns:1.25fr .75fr .75fr;min-height:500px}.scene-card{position:relative;min-height:440px;overflow:hidden;background:#161b1f}.scene-card img{width:100%;height:100%;object-fit:cover;transition:transform .6s}.scene-card:hover img{transform:scale(1.035)}.scene-card:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(5,7,9,.94),transparent 70%)}.scene-card div{position:absolute;z-index:2;left:28px;right:28px;bottom:28px;color:#fff}.scene-card span{color:var(--region-accent);font-weight:900}.scene-card h3{margin:7px 0 4px;font-size:25px}.scene-card p{margin:0;color:rgba(255,255,255,.7);font-size:13px}.scene-disclaimer{margin:16px 0 0;color:#7b8289;font-size:12px;text-align:right}
.environment-layout{display:grid;grid-template-columns:.86fr 1.14fr;gap:72px;align-items:center}.environment-media{position:relative}.environment-media img{width:100%;aspect-ratio:4/3;object-fit:cover}.environment-media:before{content:"";position:absolute;left:-18px;bottom:-18px;width:42%;height:42%;border-left:5px solid var(--region-accent);border-bottom:5px solid var(--region-accent)}.environment-copy h2{margin:0;font-size:clamp(36px,4.3vw,58px);line-height:1.14}.environment-list{margin-top:36px;border-top:1px solid var(--region-line)}.environment-item{display:grid;grid-template-columns:48px 1fr;gap:18px;padding:20px 0;border-bottom:1px solid var(--region-line)}.environment-item b{color:var(--region-accent);font-size:18px}.environment-item strong{display:block;font-size:18px}.environment-item p{margin:4px 0 0;color:var(--region-muted);font-size:13px}
.product-stage{display:grid;grid-template-columns:1fr 1fr;gap:0;background:#090b0d}.product-visuals{display:grid;grid-template-columns:1fr 1fr;min-height:530px;background:#101519}.product-visuals figure{position:relative;margin:0;padding:48px 24px 34px;display:flex;flex-direction:column;justify-content:center;border-right:1px solid rgba(255,255,255,.12);background:#101519}.product-visuals img{width:100%;height:300px;object-fit:contain}.product-visuals figure:first-child img{mix-blend-mode:lighten}.product-visuals figcaption{margin-top:20px;text-align:center}.product-visuals span{display:block;color:rgba(255,255,255,.52);font-size:11px}.product-visuals strong{display:block;margin-top:4px;color:#fff}.product-copy{padding:64px;color:#fff}.product-copy h2{margin:0;font-size:42px;line-height:1.16}.product-copy>p{color:rgba(255,255,255,.65)}.tech-status{display:inline-block;margin-top:18px;padding:6px 10px;color:#ffd98a;border:1px solid rgba(255,217,138,.4);font-size:11px;font-weight:800}.spec-table{margin-top:32px;border-top:1px solid rgba(255,255,255,.18)}.spec-table div{display:grid;grid-template-columns:130px 1fr;padding:15px 0;border-bottom:1px solid rgba(255,255,255,.14)}.spec-table span{color:rgba(255,255,255,.48);font-size:12px}.spec-table strong{font-size:14px}.product-copy .region-btn{margin-top:28px}
.calculator{display:grid;grid-template-columns:.8fr 1.2fr;background:#151a1e;color:#fff}.calculator-copy{padding:58px}.calculator-copy h2{margin:0;font-size:40px;line-height:1.18}.calculator-copy p{color:rgba(255,255,255,.62)}.calculator-form{display:grid;grid-template-columns:1fr 1fr;gap:18px;padding:58px;background:#20262b}.calculator-form label{display:grid;gap:8px;color:rgba(255,255,255,.72);font-size:12px}.calculator-form input{height:50px;padding:0 15px;color:#fff;border:1px solid rgba(255,255,255,.22);background:transparent}.calculator-form .wide{grid-column:1/-1}.calculator-form output{grid-column:1/-1;padding:18px;border-left:3px solid var(--region-accent);background:#15191d;color:rgba(255,255,255,.72)}
.delivery-track{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid var(--region-line);border-bottom:1px solid var(--region-line)}.delivery-track div{min-height:190px;padding:30px 22px;border-right:1px solid var(--region-line)}.delivery-track div:last-child{border-right:0}.delivery-track span{color:var(--region-accent);font-size:25px;font-weight:900}.delivery-track strong{display:block;margin-top:32px;font-size:18px}.delivery-track p{margin:7px 0 0;color:var(--region-muted);font-size:12px}
.service-bar{padding:34px 0;background:var(--region-accent);color:#fff}.service-bar-inner{display:grid;grid-template-columns:1.2fr repeat(3,.7fr) auto;gap:24px;align-items:center}.service-bar h2{margin:0;font-size:26px}.service-bar span{padding-left:20px;border-left:1px solid rgba(255,255,255,.38);font-weight:750}.service-bar .region-btn{color:#111;background:#fff}
.news-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:54px}.news-feature{display:block}.news-feature img{width:100%;aspect-ratio:16/9;object-fit:cover}.news-feature h3{margin:22px 0 8px;font-size:28px;line-height:1.3}.news-feature p{margin:0;color:var(--region-muted)}.news-list{border-top:1px solid var(--region-line)}.news-item{display:grid;grid-template-columns:78px 1fr;gap:20px;padding:20px 0;border-bottom:1px solid var(--region-line)}.news-item time{color:var(--region-accent);font-weight:900}.news-item h3{margin:0;font-size:18px}.news-item p{margin:4px 0 0;color:var(--region-muted);font-size:12px}.news-more{display:inline-flex;margin-top:25px;color:var(--region-accent);font-weight:800}
.city-news-list{border-top:2px solid #171b1f}.city-news-card{border-bottom:1px solid var(--region-line)}.city-news-card a{display:grid;grid-template-columns:110px minmax(0,1fr) 100px;align-items:center;gap:28px;padding:25px 4px;color:#171b1f;text-decoration:none;transition:background .2s,padding .2s}.city-news-card a:hover{padding-left:18px;padding-right:18px;background:#fff}.city-news-card time{color:var(--region-accent);font-size:13px;font-weight:850;letter-spacing:.04em}.city-news-card h3{margin:0;font-size:20px;line-height:1.42}.city-news-card p{margin:6px 0 0;color:var(--region-muted);font-size:13px;line-height:1.7}.city-news-card>a>span{color:var(--region-accent);font-size:13px;font-weight:850;text-align:right}.city-news-empty{padding:42px 28px;border-bottom:1px solid var(--region-line);background:#fff}.city-news-empty strong{font-size:20px}.city-news-empty p{margin:8px 0 0;color:var(--region-muted)}
.faq-list{border-top:1px solid rgba(255,255,255,.2)}.faq-item{border-bottom:1px solid rgba(255,255,255,.18)}.faq-item button{position:relative;width:100%;padding:25px 54px 25px 0;color:#fff;border:0;background:transparent;text-align:left;font-size:18px;font-weight:750;cursor:pointer}.faq-item button:after{content:"+";position:absolute;right:4px;top:18px;color:var(--region-accent);font-size:30px;font-weight:300}.faq-item.open button:after{content:"−"}.faq-answer{display:none;max-width:900px;padding:0 0 25px;color:rgba(255,255,255,.62)}.faq-item.open .faq-answer{display:block}
.region-footer{padding:62px 0 22px;color:#fff;background:#090b0d}.region-footer-grid{display:grid;grid-template-columns:1.2fr .7fr .9fr;gap:70px}.region-footer-logo{width:210px;filter:brightness(0) invert(1)}.region-footer h3{margin:0 0 15px;font-size:16px}.region-footer p,.region-footer a{color:rgba(255,255,255,.6);font-size:13px}.region-footer-links{display:grid;grid-template-columns:1fr 1fr;gap:9px}.region-footer-bottom{display:flex;justify-content:space-between;gap:30px;margin-top:42px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);color:rgba(255,255,255,.38);font-size:11px}
.inquiry-dialog{width:min(620px,calc(100% - 30px));padding:0;border:0}.inquiry-dialog::backdrop{background:rgba(0,0,0,.68)}.inquiry-panel{padding:34px}.inquiry-panel h2{margin:0;font-size:28px}.inquiry-panel p{color:var(--region-muted)}.inquiry-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.inquiry-grid label{display:grid;gap:6px;font-size:12px}.inquiry-grid input,.inquiry-grid textarea{width:100%;padding:12px;border:1px solid var(--region-line)}.inquiry-grid .wide{grid-column:1/-1}.inquiry-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}.inquiry-close{border:1px solid var(--region-line);background:#fff}
.theme-beihai{--region-secondary:#315d73}.theme-yulin{--region-secondary:#677338;--region-accent:#c92719;--region-accent-rgb:201,39,25}.theme-baise{--region-secondary:#8a6234;--region-accent:#d45716;--region-accent-rgb:212,87,22}.theme-yulin .region-hero:after{background:linear-gradient(90deg,rgba(11,13,8,.94),rgba(11,13,8,.73) 46%,rgba(11,13,8,.12) 80%)}.theme-baise .region-hero:after{background:linear-gradient(90deg,rgba(7,7,7,.97),rgba(7,7,7,.7) 53%,rgba(7,7,7,.18))}.theme-yulin .scene-rail{grid-template-columns:.8fr 1.2fr .8fr}.theme-baise .scene-rail{grid-template-columns:1fr 1fr 1fr}.theme-yulin .environment-layout{grid-template-columns:1.12fr .88fr}.theme-baise .environment-layout{grid-template-columns:.95fr 1.05fr}
.theme-coast .region-hero:after{background:linear-gradient(90deg,rgba(5,10,13,.96),rgba(5,10,13,.76) 44%,rgba(5,10,13,.12) 82%)}.theme-coast .scene-rail{grid-template-columns:1.2fr .8fr .8fr}.theme-agri .scene-rail{grid-template-columns:.8fr 1.2fr .8fr}.theme-agri .environment-layout{grid-template-columns:1.08fr .92fr}.theme-agri .environment-media{order:2}.theme-mine .region-hero:after{background:linear-gradient(90deg,rgba(8,8,7,.97),rgba(8,8,7,.72) 54%,rgba(8,8,7,.16))}.theme-mine .scene-rail{grid-template-columns:repeat(3,1fr)}.theme-mine .environment-layout{grid-template-columns:.92fr 1.08fr}
.news-hero{padding:90px 0 76px;color:#fff;background:#101418}.news-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}.news-hero h1{margin:0;font-size:clamp(40px,5vw,68px);line-height:1.1}.news-hero p{max-width:620px;color:rgba(255,255,255,.65)}.news-hero img{width:100%;aspect-ratio:16/10;object-fit:cover}.news-filter{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}.news-filter a{padding:9px 14px;border:1px solid rgba(255,255,255,.25);font-size:12px}.news-filter a.active{border-color:var(--region-accent);background:var(--region-accent)}.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}.article-card{border-top:4px solid #1a1e22;background:#fff}.article-card img{width:100%;aspect-ratio:16/10;object-fit:cover}.article-card-body{padding:22px 0}.article-card time{color:var(--region-accent);font-size:11px;font-weight:800}.article-card h2{margin:9px 0;font-size:20px;line-height:1.42}.article-card p{margin:0;color:var(--region-muted);font-size:13px}.article-card:hover{border-color:var(--region-accent)}.news-city-back{display:flex;align-items:center;justify-content:space-between;gap:30px;margin-top:54px;padding:34px;border-left:4px solid var(--region-accent);background:#171c20;color:#fff}.news-city-back h2{margin:0}.news-city-back p{margin:6px 0 0;color:rgba(255,255,255,.58)}
@media(max-width:980px){.region-header{height:76px}.region-header-inner{justify-content:space-between}.region-brand img{width:190px}.region-menu{display:block}.region-nav{position:absolute;top:76px;left:0;right:0;display:none;height:auto;padding:20px;background:#fff;box-shadow:0 18px 30px rgba(0,0,0,.12);align-items:stretch;flex-direction:column}.region-nav.open{display:flex}.region-nav a:after{display:none}.region-phone{display:none}.region-hero,.region-hero-copy{min-height:580px}.region-proof-grid{grid-template-columns:1fr 1fr}.region-proof-grid div:nth-child(2){border-right:0}.region-proof-grid div:nth-child(-n+2){border-bottom:1px solid var(--region-line)}.scene-rail{grid-template-columns:1fr 1fr}.scene-card:first-child{grid-column:1/-1}.environment-layout,.product-stage,.calculator,.news-layout,.news-hero-grid{grid-template-columns:1fr}.product-copy{padding:48px}.delivery-track{grid-template-columns:1fr 1fr}.delivery-track div{border-bottom:1px solid var(--region-line)}.service-bar-inner{grid-template-columns:1fr 1fr}.service-bar h2{grid-column:1/-1}.region-footer-grid{grid-template-columns:1fr 1fr}.article-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){:root{--region-shell:calc(100% - 32px)}.region-header{height:68px}.region-brand img{width:165px}.region-nav{top:68px}.region-hero,.region-hero-copy{min-height:620px}.region-hero h1{font-size:40px}.region-hero p{font-size:15px}.region-actions{align-items:stretch;flex-direction:column}.region-hero-note{flex-direction:column;gap:6px}.region-proof-grid{grid-template-columns:1fr}.region-proof-grid div{min-height:auto;border-right:0;border-bottom:1px solid var(--region-line)!important}.region-section{padding:72px 0}.region-head{align-items:flex-start;flex-direction:column;margin-bottom:34px}.region-head h2{font-size:36px}.scene-rail,.theme-yulin .scene-rail,.theme-baise .scene-rail{display:block}.scene-card{min-height:360px;margin-bottom:2px}.environment-layout{gap:46px}.environment-copy h2{font-size:36px}.product-visuals{grid-template-columns:1fr;min-height:0}.product-visuals figure{min-height:380px}.product-copy{padding:38px 24px}.product-copy h2{font-size:34px}.calculator-copy,.calculator-form{padding:34px 24px}.calculator-form{grid-template-columns:1fr}.calculator-form .wide{grid-column:auto}.delivery-track{grid-template-columns:1fr}.delivery-track div{min-height:auto;border-right:0}.service-bar-inner{display:flex;align-items:stretch;flex-direction:column}.service-bar span{padding:9px 0;border-left:0;border-top:1px solid rgba(255,255,255,.28)}.region-footer-grid,.article-grid{grid-template-columns:1fr}.region-footer-bottom{flex-direction:column}.inquiry-grid{grid-template-columns:1fr}.inquiry-grid .wide{grid-column:auto}.news-city-back{align-items:flex-start;flex-direction:column}.city-news-card a{grid-template-columns:1fr;gap:8px;padding:20px 2px}.city-news-card a:hover{padding:20px 12px}.city-news-card>a>span{text-align:left}.city-news-card p{display:-webkit-box;overflow:hidden;-webkit-line-clamp:2;-webkit-box-orient:vertical}}
.city-hub-hero{padding:110px 0 90px;color:#fff;background:linear-gradient(110deg,#0c1115 0%,#1c252c 100%)}.city-hub-hero h1{max-width:850px;margin:0;font-size:clamp(44px,5vw,70px);line-height:1.1}.city-hub-hero p{max-width:760px;margin:24px 0 0;color:rgba(255,255,255,.68);font-size:17px}.city-hub-body{padding:90px 0;background:#f4f5f6}.city-hub-group{margin-bottom:54px}.city-hub-group h2{margin:0 0 18px;font-size:30px}.city-hub-group>div{border-top:1px solid #cfd4d8}.city-hub-row{display:grid;grid-template-columns:150px 1fr auto;gap:30px;align-items:center;min-height:92px;border-bottom:1px solid #cfd4d8;background:#fff;padding:20px 26px}.city-hub-row span{font-size:25px;font-weight:900}.city-hub-row strong{color:#555e66;font-size:14px}.city-hub-row b{color:#d80d18;font-size:13px}.city-hub-row:hover{background:#fff7f7}.city-hub-note{display:grid;grid-template-columns:180px 1fr auto;gap:28px;align-items:center;padding:34px;color:#fff;background:#151a1e}.city-hub-note strong{font-size:22px}.city-hub-note p{margin:0;color:rgba(255,255,255,.62)}
@media(max-width:640px){.city-hub-hero{padding:76px 0 62px}.city-hub-hero h1{font-size:40px}.city-hub-body{padding:60px 0}.city-hub-row{grid-template-columns:1fr;gap:5px;padding:20px}.city-hub-row b{margin-top:8px}.city-hub-note{grid-template-columns:1fr;align-items:start}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}.scene-card img{transition:none!important}}