:root{--ink:#102b2a;--muted:#637473;--deep:#073b3a;--deep-2:#0a4d4b;--aqua:#1a8c86;--mint:#bce8df;--lime:#c9ef70;--paper:#f5f8f6;--line:#d9e3df;--white:#fff;--shadow:0 18px 50px rgba(7,59,58,.12);--container:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;color:var(--ink);background:var(--white);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}body,button{letter-spacing:0}a{color:inherit;text-decoration:none}button{font:inherit}.icon{display:inline-block;flex:0 0 auto}.container{width:min(calc(100% - 40px),var(--container));margin-inline:auto}.site-header{position:sticky;z-index:50;top:0;background:rgba(255,255,255,.96);border-bottom:1px solid rgba(217,227,223,.86);backdrop-filter:blur(15px)}.header-inner{width:min(calc(100% - 40px),var(--container));height:76px;margin:auto;display:flex;align-items:center;gap:34px}.brand{display:flex;align-items:center;gap:11px;white-space:nowrap}.brand-mark{display:grid;place-items:center;width:42px;height:42px;color:var(--deep);background:var(--lime)}.brand strong{display:block;font-size:19px;line-height:1.25}.brand small{display:block;color:#71817f;font-size:11px}.main-nav{display:flex;gap:30px;margin-left:auto}.main-nav a{position:relative;font-size:14px;font-weight:700}.main-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:-9px;height:2px;background:var(--aqua);transition:.25s}.main-nav a:hover:after{right:0}.header-contact{display:flex;align-items:center;gap:12px;margin-left:10px}.contact-phone{display:flex;align-items:center;gap:9px;color:var(--deep)}.contact-phone small,.contact-phone strong{display:block;line-height:1.2}.contact-phone small{color:var(--muted);font-size:10px}.contact-phone strong{font-size:17px}.wechat-copy{cursor:pointer}.header-contact .wechat-copy{height:36px;padding:0 13px;border:1px solid var(--deep);color:var(--deep);background:white;font-size:12px;font-weight:700}.menu-toggle,.mobile-nav{display:none}
.hero{position:relative;min-height:710px;color:white;background:var(--deep);overflow:hidden}.hero-media{position:absolute;inset:0;background:url('/assets/images/soil-lab-hero.jpg') center 44%/cover no-repeat;filter:saturate(.8)}.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(3,39,38,.96) 0%,rgba(4,46,44,.85) 46%,rgba(4,46,44,.32) 78%,rgba(4,46,44,.42) 100%)}.hero:after{content:"";position:absolute;top:0;left:54%;height:100%;width:1px;background:rgba(255,255,255,.12)}.hero-inner{position:relative;z-index:2;min-height:585px;display:grid;grid-template-columns:minmax(0,1.1fr) 370px;align-items:center;gap:90px;padding-block:65px}.eyebrow,.section-kicker{display:flex;align-items:center;gap:10px;margin:0 0 18px;color:var(--aqua);font-size:13px;font-weight:800}.eyebrow{color:var(--lime)}.eyebrow span{width:34px;height:1px;background:currentColor}.hero h1{max-width:720px;margin:0;font-size:clamp(42px,5vw,68px);line-height:1.12;font-weight:800;letter-spacing:0}.hero h1 em{display:block;margin-top:14px;color:var(--lime);font-style:normal;font-size:.64em;font-weight:600}.hero-lead{max-width:660px;margin:28px 0 30px;color:#dceceb;font-size:18px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.button{height:50px;padding:0 22px;border:1px solid transparent;display:inline-flex;align-items:center;justify-content:center;gap:9px;font-size:15px;font-weight:800;cursor:pointer;border-radius:0}.button-primary{background:var(--lime);color:var(--deep)}.button-primary:hover{background:#d8f690}.button-ghost{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.45);color:white}.hero-note{font-size:13px;color:#bcd1ce;margin:18px 0 0}.hero-note strong{color:white}.hero-panel{align-self:end;margin-bottom:18px;background:#fff;color:var(--ink);box-shadow:var(--shadow)}.panel-head{height:64px;padding:0 22px;display:flex;align-items:center;justify-content:space-between;background:var(--mint);font-size:14px;font-weight:800}.panel-head b{color:rgba(7,59,58,.22);font-size:31px}.hero-panel ul{list-style:none;margin:0;padding:24px 22px;display:grid;gap:13px}.hero-panel li{display:flex;align-items:center;gap:10px;font-size:14px}.hero-panel li .icon{color:var(--aqua)}.hero-panel>a{height:58px;padding:0 22px;display:flex;align-items:center;justify-content:space-between;color:white;background:var(--deep);font-weight:800}.hero-trust{position:relative;z-index:3;background:rgba(3,36,35,.76);border-top:1px solid rgba(255,255,255,.13)}.trust-grid{height:125px;display:grid;grid-template-columns:repeat(4,1fr)}.trust-grid div{display:flex;flex-direction:column;justify-content:center;padding-left:28px;border-left:1px solid rgba(255,255,255,.13)}.trust-grid div:last-child{border-right:1px solid rgba(255,255,255,.13)}.trust-grid strong{color:var(--lime);font-size:27px;line-height:1.2}.trust-grid span{margin-top:5px;color:#d0e2df;font-size:12px}
.section{padding:102px 0}.section-heading{display:grid;grid-template-columns:1fr 430px;align-items:end;gap:70px;margin-bottom:42px}.section-heading h2,.items-intro h2,.standards-title h2,.faq-layout>div h2{margin:0;font-size:38px;line-height:1.25;letter-spacing:0}.section-heading p{margin:0;color:var(--muted);font-size:15px}.service-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.service-card{position:relative;min-height:330px;padding:30px 26px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:white;transition:.25s}.service-card:hover{z-index:1;transform:translateY(-4px);box-shadow:var(--shadow);border-color:transparent}.service-number{position:absolute;right:22px;top:19px;color:#cad4d1;font-size:13px}.service-icon{width:49px;height:49px;display:grid;place-items:center;margin-bottom:54px;color:var(--deep);background:var(--mint)}.service-card h3{margin:0 0 12px;font-size:20px}.service-card p{margin:0 0 22px;color:var(--muted);font-size:14px}.service-card a{display:flex;align-items:center;gap:6px;color:var(--aqua);font-size:13px;font-weight:800}
.items-section{color:white;background:var(--deep)}.items-layout{display:grid;grid-template-columns:1fr 1.2fr;gap:100px;align-items:center}.section-kicker.light{color:var(--lime)}.items-intro p{max-width:480px;color:#bbcecb;margin:26px 0}.text-link{display:inline-flex;align-items:center;gap:8px;color:var(--lime);font-weight:800}.item-groups{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid rgba(255,255,255,.16);border-left:1px solid rgba(255,255,255,.16)}.item-groups>div{min-height:220px;padding:28px;border-right:1px solid rgba(255,255,255,.16);border-bottom:1px solid rgba(255,255,255,.16)}.item-groups b{color:var(--lime);font-size:12px}.item-groups h3{margin:34px 0 10px;font-size:19px}.item-groups p{margin:0;color:#b9ccca;font-size:13px}
.process-section{background:var(--paper)}.process-list{margin:0;padding:0;list-style:none;display:grid;grid-template-columns:repeat(4,1fr)}.process-list li{position:relative;border-top:2px solid #bed0cb;padding-top:36px}.process-list li:before{content:"";position:absolute;top:-7px;left:0;width:12px;height:12px;border:2px solid var(--paper);background:var(--aqua);box-shadow:0 0 0 2px var(--aqua)}.process-list li>span{position:absolute;right:20px;top:16px;color:#b3c4bf;font-size:12px}.process-list div{padding:0 35px 0 0}.process-list .icon{color:var(--aqua)}.process-list h3{margin:24px 0 8px;font-size:18px}.process-list p{margin:0;color:var(--muted);font-size:13px}
.standards-section{border-bottom:1px solid var(--line)}.standards-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:100px}.standards-copy{border-left:3px solid var(--lime);padding-left:34px}.standards-copy>p{margin:0 0 26px;color:#405653;font-size:16px}.standard-tags{display:flex;flex-wrap:wrap;gap:9px}.standard-tags span{padding:8px 12px;background:var(--paper);border:1px solid var(--line);font-size:12px}.standards-copy small{display:block;margin-top:18px;color:#8a9996}.faq-section{background:#fff}.faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:100px}.faq-layout>div>p{color:var(--muted)}.faq-list details{border-top:1px solid var(--line)}.faq-list details:last-child{border-bottom:1px solid var(--line)}.faq-list summary{cursor:pointer;list-style:none;padding:22px 4px;display:flex;justify-content:space-between;font-weight:800}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary span{color:var(--aqua);font-size:22px;transition:.2s}.faq-list details[open] summary span{transform:rotate(45deg)}.faq-list details p{margin:-5px 34px 22px 4px;color:var(--muted);font-size:14px}
.related-section{padding:58px 0;background:var(--paper)}.related-inner{display:grid;grid-template-columns:320px 1fr;gap:70px;align-items:start}.related-inner h2{margin:0;font-size:25px}.related-links{display:flex;flex-wrap:wrap;gap:9px}.related-links a{padding:8px 13px;border:1px solid var(--line);background:white;font-size:13px}.related-links a:hover,.related-links .is-province{color:white;background:var(--deep);border-color:var(--deep)}
.cities-section{background:var(--paper)}.city-directory{display:grid;gap:0;border-top:1px solid var(--line)}.province-group{display:grid;grid-template-columns:130px 1fr;gap:30px;padding:21px 0;border-bottom:1px solid var(--line)}.province-name{font-weight:900;color:var(--deep)}.province-name:after{content:" →";color:var(--aqua)}.city-list{display:flex;flex-wrap:wrap;gap:8px 20px}.city-list a,.city-list span{color:#526562;font-size:13px}.city-list a:hover{color:var(--aqua)}
.contact-section{padding:84px 0;color:white;background:#0a3534}.contact-layout{display:grid;grid-template-columns:1fr 450px;gap:110px;align-items:center}.contact-layout h2{font-size:40px;line-height:1.25;margin:0}.contact-layout>div>p{color:#b9cbc9}.contact-box{padding:30px;background:white;color:var(--ink)}.contact-box small{color:var(--muted)}.contact-box>a{display:block;margin:4px 0;color:var(--deep);font-size:36px;font-weight:900;line-height:1.25}.contact-box p{margin:0 0 22px;color:var(--muted)}.contact-box>div{display:flex;gap:10px}.button-white{border-color:var(--line);background:white;color:var(--deep)}
.site-footer{padding:72px 0 24px;color:#c9d8d6;background:#062c2b}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.1fr 1.25fr;gap:60px}.brand-footer{color:white;margin-bottom:20px}.footer-brand>p{max-width:290px}.footer-grid h3{margin:5px 0 18px;color:white;font-size:14px}.footer-grid>div>a:not(.brand){display:block;margin:8px 0;color:#afc5c2;font-size:12px}.footer-grid p{color:#91aaa7;font-size:12px}.footer-grid .footer-phone{color:var(--lime)!important;font-size:19px!important;font-weight:900}.footer-bottom{display:flex;justify-content:space-between;margin-top:50px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);color:#789693;font-size:11px}.mobile-actions{display:none}.toast{position:fixed;z-index:100;left:50%;bottom:28px;transform:translate(-50%,20px);padding:11px 18px;background:#102b2a;color:white;box-shadow:var(--shadow);font-size:13px;opacity:0;pointer-events:none;transition:.22s}.toast.is-visible{opacity:1;transform:translate(-50%,0)}
@media (max-width:1000px){.main-nav{display:none}.header-inner{gap:18px}.header-contact{margin-left:auto}.menu-toggle{width:42px;height:42px;padding:10px;border:0;background:transparent;display:grid;align-content:center;gap:5px}.menu-toggle span{height:2px;background:var(--deep)}.mobile-nav{position:absolute;top:76px;left:0;right:0;padding:10px 20px 18px;background:white;border-bottom:1px solid var(--line)}.mobile-nav.is-open{display:grid}.mobile-nav a{padding:12px;border-bottom:1px solid var(--line);font-weight:700}.hero-inner{grid-template-columns:1fr 320px;gap:40px}.service-grid{grid-template-columns:repeat(2,1fr)}.items-layout,.standards-layout,.faq-layout{gap:55px}.contact-layout{grid-template-columns:1fr 400px;gap:50px}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}.footer-grid>div:nth-child(3){display:none}}
@media (max-width:720px){body{padding-bottom:62px}.container,.header-inner{width:min(calc(100% - 28px),var(--container))}.header-inner{height:66px}.brand-mark{width:36px;height:36px}.brand strong{font-size:16px}.brand small{font-size:9px}.header-contact{display:none}.mobile-nav{top:66px}.hero{min-height:0}.hero-media{background-position:62% center}.hero-overlay{background:linear-gradient(90deg,rgba(3,39,38,.97),rgba(3,39,38,.74))}.hero:after{display:none}.hero-inner{min-height:590px;display:block;padding:70px 0 42px}.hero h1{font-size:38px;line-height:1.15}.hero h1 em{margin-top:12px;font-size:.62em}.hero-lead{margin:22px 0 25px;font-size:15px}.button{height:48px;padding-inline:17px}.hero-panel{display:none}.hero-trust{background:#052f2e}.trust-grid{width:100%;height:auto;grid-template-columns:1fr 1fr}.trust-grid div{min-height:84px;padding-left:20px;border-bottom:1px solid rgba(255,255,255,.1)}.trust-grid strong{font-size:21px}.section{padding:68px 0}.section-heading{display:block;margin-bottom:30px}.section-heading h2,.items-intro h2,.standards-title h2,.faq-layout>div h2{font-size:29px}.section-heading p{margin-top:15px}.service-grid{grid-template-columns:1fr}.service-card{min-height:0;padding:25px}.service-icon{margin-bottom:30px}.items-layout,.standards-layout,.faq-layout,.contact-layout,.related-inner{grid-template-columns:1fr;gap:38px}.item-groups{grid-template-columns:1fr}.item-groups>div{min-height:170px}.item-groups h3{margin-top:22px}.process-list{grid-template-columns:1fr;gap:0}.process-list li{min-height:155px;padding:30px 0 25px 36px;border-top:0;border-left:2px solid #bed0cb}.process-list li:before{top:34px;left:-7px}.process-list li>span{top:27px}.process-list div{padding-right:20px}.process-list .icon{display:none}.process-list h3{margin:0 0 8px}.standards-copy{padding-left:22px}.province-group{grid-template-columns:1fr;gap:9px}.city-list{gap:7px 16px}.contact-layout h2{font-size:30px}.contact-box{padding:24px 20px}.contact-box>a{font-size:29px}.contact-box>div{display:grid;grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:38px 24px}.footer-grid>div:nth-child(2){display:none}.footer-bottom{margin-top:35px;display:block}.footer-bottom span{display:block}.mobile-actions{position:fixed;z-index:70;left:0;right:0;bottom:0;height:62px;display:grid;grid-template-columns:1fr 1fr;background:white;border-top:1px solid var(--line);box-shadow:0 -8px 26px rgba(7,59,58,.09)}.mobile-actions a,.mobile-actions button{border:0;display:flex;align-items:center;justify-content:center;gap:8px;font-weight:900}.mobile-actions a{color:white;background:var(--deep)}.mobile-actions button{color:var(--deep);background:var(--lime)}.toast{bottom:78px;white-space:nowrap}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.service-card,.toast{transition:none}}
.hero-media{background-image:url('../images/soil-lab-hero.jpg')}