:root{--ink:#14201c;--muted:#5f706a;--line:#dbe6df;--paper:#f4f7f2;--white:#fff;--forest:#0f3128;--green:#18865d;--green-dark:#0d6848;--mint:#dff4e8;--gold:#d9a441;--orange:#f08b38;--shadow:0 18px 44px rgba(15,49,40,.13);--radius:22px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Microsoft YaHei","PingFang SC","Noto Sans SC",Arial,sans-serif;line-height:1.7}body.nav-locked{overflow:hidden}a{color:inherit;text-decoration:none}button,summary{font:inherit}img{display:block;max-width:100%}strong{color:var(--forest)}.site-header{position:sticky;top:0;z-index:40;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px clamp(18px,5vw,78px);background:rgba(15,49,40,.97);color:var(--white);backdrop-filter:blur(12px)}.site-header.is-scrolled{box-shadow:0 10px 30px 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p{color:var(--muted);font-size:17px}.hero-text{max-width:780px;margin-bottom:26px}.hero-actions,.contact-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;border:1px solid transparent;border-radius:999px;cursor:pointer;font-weight:900;padding:12px 22px;transition:transform .18s ease,box-shadow .18s ease,background .18s ease}.btn:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(15,49,40,.16)}.btn.primary{background:var(--green);color:var(--white)}.btn.primary:hover{background:var(--green-dark)}.btn.ghost{border-color:var(--line);background:var(--white);color:var(--forest)}.btn.dark{background:var(--forest);color:var(--white)}.hero-contact-panel{display:grid;gap:6px;max-width:660px;margin-bottom:28px;border:1px solid var(--line);border-left:5px solid var(--gold);border-radius:18px;background:#fbfdf9;padding:16px 18px;box-shadow:0 10px 28px rgba(15,49,40,.08)}.hero-phone{color:var(--green-dark);font-size:22px;font-weight:900}address{color:var(--muted);font-style:normal}.hero-stats{display:grid;max-width:760px;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:0}.hero-stats div{border:1px solid var(--line);border-radius:18px;background:var(--white);padding:16px}.hero-stats dt{color:var(--forest);font-size:28px;font-weight:900;line-height:1}.hero-stats dd{margin:8px 0 0;color:var(--muted);font-size:14px}.hero-media{position:relative;display:grid;min-height:620px;place-items:center;overflow:hidden;border-left:1px solid var(--line);background:linear-gradient(145deg,#12372e,#0f3128 52%,#1a5f46);padding:clamp(30px,5vw,68px)}.hero-media:before,.hero-media:after{position:absolute;border-radius:999px;content:""}.hero-media:before{top:-10%;right:-14%;width:380px;height:380px;background:rgba(217,164,65,.2)}.hero-media:after{bottom:-16%;left:-14%;width:460px;height:460px;background:rgba(255,255,255,.08)}.hero-media img{position:relative;z-index:1;width:min(680px,100%);filter:drop-shadow(0 24px 44px rgba(0,0,0,.28))}.hero-badges{position:absolute;right:24px;bottom:24px;left:24px;z-index:2;display:flex;flex-wrap:wrap;gap:10px}.hero-badges span{border:1px solid rgba(255,255,255,.25);border-radius:999px;background:rgba(255,255,255,.13);color:var(--white);font-size:14px;font-weight:800;padding:8px 12px;backdrop-filter:blur(12px)}.section{padding:clamp(56px,8vw,104px) clamp(20px,5vw,78px)}.section-heading{max-width:900px;margin-bottom:30px}.split-heading{display:grid;max-width:none;grid-template-columns:minmax(280px,.8fr) minmax(0,1fr);align-items:end;gap:24px}.advantage-grid,.service-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.advantage-grid article,.service-card,.process-list li,.faq-list details{border:1px solid var(--line);border-radius:var(--radius);background:var(--white);box-shadow:0 10px 30px rgba(15,49,40,.06)}.advantage-grid article{padding:24px}.advantage-grid span,.service-icon{display:grid;width:50px;height:50px;place-items:center;border-radius:16px;background:var(--mint);color:var(--green-dark);font-weight:900}.advantage-grid h3,.service-card h3{margin:18px 0 10px;font-size:20px}.advantage-grid p,.service-card p,.process-list p,.faq-list p{margin-bottom:0;color:var(--muted)}.services-section{background:#edf4ee}.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}.filter-btn{border:1px solid var(--line);border-radius:999px;background:var(--white);color:var(--forest);cursor:pointer;font-weight:800;padding:10px 15px}.filter-btn.is-active,.filter-btn:hover{border-color:var(--green);background:var(--green);color:var(--white)}.service-card{position:relative;overflow:hidden;padding:24px}.service-card:after{position:absolute;top:-32px;right:-32px;width:112px;height:112px;border-radius:50%;background:rgba(24,134,93,.08);content:""}.service-card ul{display:grid;gap:6px;margin:14px 0 0;padding:0;list-style:none}.service-card li{position:relative;color:var(--muted);padding-left:18px}.service-card li:before{position:absolute;top:.74em;left:0;width:7px;height:7px;border-radius:50%;background:var(--gold);content:""}.process-section{background:var(--white)}.process-list{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:14px;margin:0;padding:0;list-style:none}.process-list li{padding:22px}.process-list span{color:var(--gold);font-size:28px;font-weight:900;line-height:1}.process-list h3{margin:14px 0 8px;font-size:19px}.coverage-section{padding-top:0;background:var(--white)}.coverage-card{display:grid;grid-template-columns:minmax(0,.9fr) minmax(320px,1.1fr);gap:24px;align-items:center;border-radius:calc(var(--radius) + 8px);background:linear-gradient(135deg,var(--forest),#195c45);color:var(--white);padding:clamp(24px,5vw,48px);box-shadow:var(--shadow)}.coverage-card h2,.coverage-card .eyebrow{color:var(--white)}.coverage-card p{margin-bottom:0;color:rgba(255,255,255,.78)}.area-tags,.keyword-cloud{display:flex;flex-wrap:wrap;gap:10px}.area-tags span,.keyword-cloud span{border-radius:999px;font-weight:800;padding:9px 13px}.area-tags span{border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.1);color:var(--white)}.article-section{background:var(--paper)}.seo-article{max-width:980px;border:1px solid var(--line);border-radius:calc(var(--radius) + 8px);background:var(--white);padding:clamp(24px,5vw,48px);box-shadow:var(--shadow)}.keyword-cloud{margin-top:24px}.keyword-cloud span{background:var(--mint);color:var(--green-dark);font-size:14px}.faq-section{background:var(--white)}.faq-list{display:grid;gap:14px;max-width:980px}.faq-list details{overflow:hidden}.faq-list summary{position:relative;cursor:pointer;color:var(--forest);font-size:18px;font-weight:900;padding:20px 58px 20px 22px;list-style:none}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{position:absolute;top:50%;right:22px;color:var(--green);content:"+";font-size:28px;line-height:1;transform:translateY(-50%)}.faq-list details[open] summary:after{content:"−"}.faq-list p{border-top:1px solid var(--line);padding:18px 22px 22px}.contact-section{display:grid;grid-template-columns:minmax(320px,.82fr) minmax(0,1.18fr);gap:0;background:var(--forest);padding:clamp(36px,6vw,70px) clamp(20px,5vw,78px)}.contact-copy,.map-card{min-height:420px}.contact-copy{display:flex;flex-direction:column;justify-content:center;border-radius:28px 0 0 28px;background:var(--white);padding:clamp(24px,5vw,44px)}.map-card{overflow:hidden;border:8px solid rgba(255,255,255,.1);border-radius:0 28px 28px 0;background:#d5e2da}.amap-view{width:100%;height:100%;min-height:420px}.amap-store-marker{position:relative;display:inline-flex;max-width:220px;align-items:center;border:1px solid rgba(15,49,40,.16);border-left:5px solid var(--gold);background:rgba(255,255,255,.97);color:var(--forest);cursor:pointer;font-size:14px;font-weight:900;line-height:1.25;padding:9px 11px;box-shadow:0 8px 20px rgba(15,49,40,.18)}.amap-store-marker:after{position:absolute;bottom:-9px;left:50%;width:14px;height:14px;border-right:1px solid rgba(15,49,40,.16);border-bottom:1px solid rgba(15,49,40,.16);background:rgba(255,255,255,.97);content:"";transform:translateX(-50%) rotate(45deg)}.amap-store-marker span{position:relative;z-index:1}.mobile-cta{position:fixed;right:16px;bottom:16px;z-index:35;display:grid;gap:8px}.mobile-cta a{border-radius:999px;background:var(--green);color:var(--white);font-size:14px;font-weight:900;padding:10px 14px;box-shadow:0 10px 24px rgba(15,49,40,.2)}.mobile-cta a:first-child{background:var(--orange)}.site-footer{display:grid;gap:8px;padding:28px clamp(20px,5vw,78px);background:#071612;color:rgba(255,255,255,.72)}.site-footer strong{color:var(--white);font-size:18px}@media(max-width:1180px){.hero,.contact-section,.coverage-card{grid-template-columns:1fr}.hero{min-height:auto}.hero-media{min-height:500px;border-left:0;border-top:1px solid var(--line)}.advantage-grid,.service-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.process-list{grid-template-columns:repeat(3,minmax(0,1fr))}.contact-copy,.map-card{border-radius:28px}.map-card{margin-top:18px}}@media(max-width:760px){.site-header{padding:12px 16px}.brand{min-width:0}.brand small{display:none}.nav-toggle{display:block}.site-nav{position:absolute;top:calc(100% + 1px);right:16px;left:16px;display:none;flex-direction:column;align-items:stretch;border:1px solid rgba(255,255,255,.14);border-radius:18px;background:var(--forest);padding:10px;box-shadow:var(--shadow)}.site-nav.is-open{display:flex}.site-nav a{border-radius:12px;padding:12px}.site-nav .nav-phone{margin-left:0;text-align:center}h1{font-size:40px}.hero-copy,.section{padding-right:18px;padding-left:18px}.hero-actions,.contact-actions{align-items:stretch;flex-direction:column}.btn{width:100%}.hero-media{min-height:360px;padding:22px}.hero-badges{position:relative;right:auto;bottom:auto;left:auto;margin-top:18px}.hero-stats,.advantage-grid,.service-grid,.process-list,.split-heading{grid-template-columns:1fr}.process-list li,.advantage-grid article,.service-card{padding:20px}.coverage-card,.seo-article,.contact-copy{padding:22px}.contact-section{padding:34px 16px 90px}.contact-copy,.map-card,.amap-view{min-height:330px}.mobile-cta{right:10px;bottom:10px;left:10px;grid-template-columns:repeat(3,minmax(0,1fr))}.mobile-cta a{text-align:center;padding:11px 8px}}
.price-promise{display:flex;flex-wrap:wrap;gap:10px;margin:-8px 0 18px}.price-promise span{border:1px solid rgba(217,164,65,.38);border-radius:999px;background:#fff7df;color:#7a4d08;font-weight:900;padding:8px 12px}.high-price-section{background:linear-gradient(180deg,var(--white),#fff8e8)}.high-price-card{display:grid;grid-template-columns:minmax(0,.86fr) minmax(320px,1.14fr);gap:24px;align-items:center;border:1px solid rgba(217,164,65,.35);border-radius:30px;background:radial-gradient(circle at 8% 0,rgba(217,164,65,.22),transparent 34%),var(--white);padding:clamp(24px,5vw,48px);box-shadow:var(--shadow)}.high-price-card h2{margin-bottom:12px}.high-price-card p{margin-bottom:0;color:var(--muted);font-size:17px}.price-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.price-points div{border-radius:22px;background:var(--forest);color:rgba(255,255,255,.74);padding:22px}.price-points strong{display:block;margin-bottom:8px;color:var(--gold);font-size:20px}.price-points span{font-size:15px}.gallery-section{background:#edf4ee}.recycling-gallery{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.recycling-photo{overflow:hidden;border:1px solid var(--line);border-radius:22px;background:var(--white);box-shadow:0 10px 30px rgba(15,49,40,.08)}.recycling-photo img{width:100%;height:220px;object-fit:cover;background:#dce7df;transition:transform .25s ease}.recycling-photo:hover img{transform:scale(1.04)}.recycling-photo figcaption{display:grid;gap:4px;padding:14px 16px}.recycling-photo figcaption strong{font-size:17px}.recycling-photo figcaption span{color:var(--green-dark);font-size:14px;font-weight:800}@media(max-width:1180px){.high-price-card{grid-template-columns:1fr}.recycling-gallery{grid-template-columns:repeat(3,minmax(0,1fr))}.price-points{grid-template-columns:repeat(3,minmax(0,1fr))}}@media(max-width:760px){.high-price-card,.price-points,.recycling-gallery{grid-template-columns:1fr}.recycling-photo img{height:260px}}

/* ershou seo supplemental styles */
.category-section,.criteria-section,.pricing-section,.cases-section{background:var(--white)}
.category-grid,.criteria-grid,.pricing-grid,.case-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.category-card,.criteria-grid article,.pricing-grid article,.case-grid article{display:grid;gap:8px;border:1px solid var(--line);border-radius:22px;background:var(--white);padding:22px;box-shadow:0 10px 30px rgba(15,49,40,.08)}
.category-card{border-left:5px solid var(--gold);transition:transform .18s ease,box-shadow .18s ease}.category-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.category-card strong{font-size:20px}.category-card span,.pricing-grid span,.criteria-grid p,.case-grid p{color:var(--muted)}
.criteria-section{background:#fbf6e8}.criteria-grid article{background:#fffdf7}.pricing-grid article strong{color:var(--green-dark);font-size:20px}.cases-section{background:#edf4ee}.case-grid article{border-top:5px solid var(--green)}
.breadcrumbs{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 18px;color:var(--muted);font-size:14px}.breadcrumbs a{color:var(--green-dark);font-weight:800}.landing-hero,.landing-main .hero{min-height:auto}.landing-list{display:grid;gap:12px;margin:0;padding:0;list-style:none}.landing-list li{border-left:4px solid var(--gold);border-radius:14px;background:#fffdf7;padding:12px 14px}.related-links{display:flex;flex-wrap:wrap;gap:10px}.related-links a{border:1px solid var(--line);border-radius:999px;background:var(--white);color:var(--green-dark);font-weight:800;padding:8px 12px}.nap-box{border:1px solid rgba(217,164,65,.42);border-radius:22px;background:#fff8e8;padding:22px}.nap-box a{color:var(--green-dark);font-size:22px;font-weight:900}
@media(max-width:1180px){.category-grid,.criteria-grid,.pricing-grid,.case-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){.category-grid,.criteria-grid,.pricing-grid,.case-grid{grid-template-columns:1fr}.category-card,.criteria-grid article,.pricing-grid article,.case-grid article{padding:18px}}

.map-fallback{display:grid;min-height:100%;place-content:center;gap:10px;padding:24px;text-align:center;color:var(--forest);background:linear-gradient(135deg,#e7f0ea,#cfded5)}.map-fallback strong{font-size:24px}.map-fallback span{color:var(--muted)}.map-fallback a{display:inline-flex;justify-content:center;border-radius:999px;background:var(--green);color:#fff;font-weight:900;padding:10px 16px}.amap-view.is-map-error .map-fallback{outline:2px dashed rgba(15,49,40,.18);outline-offset:-12px}