:root{--ink:#17211b;--muted:#687169;--paper:#f5f1e8;--surface:#fffdf8;--green:#174f3b;--green-2:#0d3829;--orange:#e5672e;--line:#d8d0c0;--soft:#e8eee8;--shadow:0 18px 50px rgba(23,33,27,.1);--radius:18px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;overflow-x:hidden;background:var(--paper);color:var(--ink);font-family:"Microsoft YaHei UI","PingFang SC","Noto Sans SC",sans-serif;line-height:1.55}button,input,textarea{font:inherit}button,a{touch-action:manipulation}button{color:inherit}a{color:inherit;text-decoration:none}.section-shell{width:min(1200px,calc(100% - 48px));margin-inline:auto}.site-header{height:76px;padding:0 max(24px,calc((100vw - 1200px)/2));display:flex;align-items:center;gap:34px;background:rgba(255,253,248,.94);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(14px)}.brand{display:flex;align-items:center;gap:11px;font-weight:900;letter-spacing:.02em;white-space:nowrap}.brand small{display:block;color:var(--muted);font-size:10px;font-weight:600;letter-spacing:.18em}.brand-mark{display:grid;place-items:center;width:40px;height:40px;background:var(--green);color:#fff;border-radius:12px;font-family:serif;font-size:22px}.site-header nav{display:flex;gap:28px;margin-right:auto}.site-header nav a{font-size:15px;font-weight:700;position:relative}.site-header nav a:after{content:"";position:absolute;height:2px;background:var(--orange);left:0;right:100%;bottom:-8px;transition:.2s}.site-header nav a:hover:after{right:0}.header-actions{display:flex;align-items:center;gap:10px}.primary-button,.outline-button,.text-button,.card-button{border:0;cursor:pointer;border-radius:11px;font-weight:800}.primary-button{background:var(--orange);color:#fff;padding:13px 22px;box-shadow:0 8px 18px rgba(229,103,46,.2)}.primary-button:hover{background:#c94e1d}.primary-button.small{padding:10px 17px}.outline-button{background:transparent;border:1px solid var(--green);color:var(--green);padding:11px 18px}.outline-button:hover{background:var(--soft)}.text-button{background:transparent;padding:10px 12px}.text-button:hover{color:var(--orange)}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgba(229,103,46,.4);outline-offset:3px}.hero{display:grid;grid-template-columns:1fr 1.05fr;gap:64px;align-items:center;padding-block:76px 58px}.eyebrow{text-transform:uppercase;letter-spacing:.17em;font-size:12px;font-weight:900;color:var(--orange);margin:0 0 12px}.hero h1{font-size:clamp(42px,5vw,72px);line-height:1.04;letter-spacing:-.06em;margin:0}.hero h1 em{font-style:normal;color:var(--green)}.hero-note{color:var(--muted);font-size:18px;margin:24px 0 0}.search-panel{background:var(--green);color:#fff;border-radius:24px;padding:30px;box-shadow:var(--shadow);position:relative}.search-panel:before{content:"";width:82px;height:6px;background:var(--orange);position:absolute;top:0;left:30px;border-radius:0 0 8px 8px}.search-panel label{font-weight:900;font-size:20px;display:block;margin-bottom:14px}.search-row{display:flex;background:#fff;padding:7px;border-radius:14px}.search-row input{min-width:0;flex:1;border:0;padding:11px;color:var(--ink);outline:none}.hot-searches{display:flex;gap:9px;flex-wrap:wrap;margin-top:17px;align-items:center;font-size:13px;color:#c8d7cf}.hot-searches button{background:transparent;border:0;color:#fff;padding:2px;cursor:pointer;border-bottom:1px dashed rgba(255,255,255,.4)}.quick-actions{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 12px 30px rgba(23,33,27,.05)}.quick-card{border:0;background:var(--surface);padding:24px;text-align:left;cursor:pointer;display:grid;gap:4px;min-height:128px}.quick-card:hover{background:#fdf8ed}.quick-card span{color:var(--orange);font-size:12px;font-weight:900}.quick-card strong{font-size:17px}.quick-card small{color:var(--muted)}.quick-card.accent{background:var(--green);color:#fff}.quick-card.accent small{color:#c8d7cf}.content-section{padding-block:92px}.tinted{background:#e7ece7}.directory-section{background:var(--green-2);color:#fff}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:32px}.section-heading h2{font-size:clamp(32px,4vw,50px);letter-spacing:-.045em;line-height:1.05;margin:0 0 10px}.section-heading p:not(.eyebrow){margin:0;color:var(--muted)}.directory-section .section-heading p:not(.eyebrow){color:#b8cbc1}.inline-link{font-weight:900;color:var(--green);white-space:nowrap}.category-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.category-card{border:1px solid var(--line);background:var(--surface);padding:22px;border-radius:15px;text-align:left;cursor:pointer;min-height:210px;display:flex;flex-direction:column;transition:.2s}.category-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#b8aa91}.category-number{font-family:monospace;color:var(--orange);font-weight:800;margin-bottom:22px}.category-card strong{font-size:18px}.category-card small{color:var(--muted);margin-top:3px}.category-children{font-size:12px;color:var(--muted);margin-top:18px;line-height:1.7}.card-link{color:var(--green);font-size:12px;font-weight:900;margin-top:auto;padding-top:16px}.category-grid+.outline-button{margin-top:22px}.supplier-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.supplier-card{background:var(--surface);border-radius:16px;padding:20px;display:flex;flex-direction:column;min-height:350px;box-shadow:0 8px 24px rgba(23,33,27,.05)}.card-top{display:flex;justify-content:space-between;align-items:center}.demo-badge{background:#f7dfc9;color:#9c421c;font-size:10px;font-weight:900;padding:4px 7px;border-radius:5px;letter-spacing:.08em}.demo-badge.dark{background:rgba(255,255,255,.14);color:#fff}.icon-share{width:34px;height:34px;border-radius:50%;border:1px solid var(--line);background:transparent;cursor:pointer}.factory-avatar{width:58px;height:58px;display:grid;place-items:center;background:var(--soft);color:var(--green);border-radius:16px;font-size:24px;font-weight:900;margin:20px 0 14px}.supplier-card h3,.request-card h3{margin:0 0 4px;font-size:18px}.muted{color:var(--muted)}.tag-row{display:flex;gap:6px;flex-wrap:wrap}.tag-row span,.tag-row i{font-style:normal;font-size:11px;background:var(--soft);color:var(--green);padding:4px 7px;border-radius:5px}.tag-row.large span{font-size:13px;padding:7px 10px}.card-footer{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);display:grid;gap:12px}.card-footer small{color:var(--muted);font-size:10px}.card-button{background:var(--green);color:#fff;padding:10px 12px}.request-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.request-card{background:var(--green);color:#fff;border-radius:16px;padding:22px;min-height:280px;display:flex;flex-direction:column}.request-date{font-size:11px;color:#bcd0c5;margin:22px 0 8px}.request-card dl{display:flex;gap:20px;margin:22px 0}.request-card dl div{flex:1}.request-card dt{font-size:10px;color:#bcd0c5}.request-card dd{margin:4px 0;font-weight:800}.card-button.light{margin-top:auto;background:#fff;color:var(--green)}.region-grid{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}.region-pill{border:1px solid rgba(255,255,255,.2);border-radius:999px;background:transparent;color:#fff;padding:9px 14px;cursor:pointer}.region-pill small{background:var(--orange);padding:2px 5px;border-radius:4px;margin-left:5px;font-size:9px}.region-pill:hover,.region-pill.active{background:#fff;color:var(--green)}.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.project-card{background:#174f3b;border:1px solid rgba(255,255,255,.13);color:#fff;padding:22px;border-radius:15px;text-align:left;cursor:pointer;min-height:210px;display:flex;flex-direction:column}.project-card:hover{border-color:var(--orange)}.project-card>span{font-size:11px;color:#bcd0c5}.project-card strong{font-size:21px;margin:15px 0 3px}.project-card p{color:#c9d7d0;margin:0}.project-card .tag-row{margin-top:15px}.project-card .tag-row i{background:rgba(255,255,255,.1);color:#fff}.project-card b{margin-top:auto;padding-top:20px;font-size:12px;color:#ffb18c}.empty-state{grid-column:1/-1;padding:50px;text-align:center;border:1px dashed rgba(255,255,255,.35);border-radius:16px}.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.service-card{border:1px solid var(--line);background:var(--surface);padding:22px;border-radius:15px;text-align:left;cursor:pointer;min-height:170px}.service-card>span{display:grid;place-items:center;width:42px;height:42px;border-radius:11px;background:var(--green);color:#fff;font-weight:900}.service-card strong{font-size:18px}.service-card p{font-size:13px;color:var(--muted)}.service-card b{font-size:12px;color:var(--orange)}.risk-section{margin-bottom:92px;padding:28px 32px;background:#fff5e5;border:1px solid #ecc995;border-radius:18px;display:flex;align-items:center;gap:20px}.risk-section h2{font-size:18px;margin:0}.risk-section p{margin:4px 0;color:#6c5533}.risk-icon{flex:0 0 auto;width:46px;height:46px;border:2px solid var(--orange);color:var(--orange);border-radius:50%;display:grid;place-items:center;font-weight:900}.risk-section .text-button{margin-left:auto;white-space:nowrap}.site-footer{background:#101812;color:#d6dfd9}.footer-main{display:flex;justify-content:space-between;align-items:center;padding-block:42px}.footer-brand .brand-mark{background:var(--orange)}.footer-links{display:flex;gap:20px;flex-wrap:wrap}.footer-links button{border:0;background:transparent;color:inherit;cursor:pointer;padding:0}.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-block:18px;display:flex;justify-content:space-between;font-size:11px;color:#86958b}.drawer-overlay{position:fixed;inset:0;background:rgba(10,18,13,.48);z-index:40;backdrop-filter:blur(3px)}.drawer{position:fixed;z-index:41;right:0;top:0;bottom:0;width:min(560px,100%);background:var(--surface);box-shadow:-18px 0 50px rgba(0,0,0,.18);padding:28px;overflow:auto}.drawer[hidden],.drawer-overlay[hidden]{display:none}.drawer-open{overflow:hidden}.drawer-header{display:flex;justify-content:space-between;align-items:flex-start;border-bottom:1px solid var(--line);padding-bottom:20px}.drawer-header h2{font-size:30px;line-height:1.15;margin:0}.icon-button{width:40px;height:40px;border:1px solid var(--line);background:transparent;border-radius:50%;cursor:pointer;font-size:24px}.drawer-content{padding-block:24px}.drawer-lead{font-size:18px;color:#37443c}.drawer-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px;padding-top:20px;border-top:1px solid var(--line)}.drawer-list{display:grid;gap:9px}.drawer-list button,.related-item{border:1px solid var(--line);background:#fff;padding:14px;border-radius:10px;text-align:left;display:flex;align-items:center;gap:12px;cursor:pointer;width:100%}.drawer-list button span{color:var(--orange);font:700 12px monospace}.drawer-list button small,.related-item span{margin-left:auto;color:var(--green)}.verify-panel,.prototype-note{background:var(--soft);border-radius:12px;padding:16px;margin-bottom:22px}.verify-panel span{float:right;color:var(--muted);font-size:11px}.verify-panel p{font-size:12px;color:var(--muted);margin-bottom:0}.prototype-note{font-size:12px;color:var(--green)}.prototype-form{display:grid;gap:14px}.prototype-form label{display:grid;gap:5px;font-size:13px;font-weight:700}.prototype-form input,.prototype-form textarea{border:1px solid var(--line);background:#fff;padding:12px;border-radius:9px;resize:vertical}.success-panel{text-align:center;padding:50px 10px}.success-panel span{display:grid;place-items:center;margin:auto;width:60px;height:60px;border-radius:50%;background:var(--green);color:#fff;font-size:28px}.detail-dl{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden}.detail-dl div{background:#fff;padding:14px}.detail-dl dt{font-size:11px;color:var(--muted)}.detail-dl dd{font-weight:800;margin:4px 0}.rule-list{padding-left:22px}.toast{position:fixed;z-index:60;left:50%;bottom:28px;transform:translateX(-50%);background:var(--ink);color:#fff;padding:11px 18px;border-radius:999px;box-shadow:var(--shadow);font-size:13px}
@media(max-width:980px){.site-header nav{gap:16px}.hero{grid-template-columns:1fr;gap:32px}.supplier-grid,.request-grid,.category-grid{grid-template-columns:repeat(2,1fr)}.project-grid{grid-template-columns:repeat(2,1fr)}.service-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:720px){.section-shell{width:min(100% - 28px,1200px)}.site-header{height:66px;padding:0 14px;gap:12px}.brand small{display:none}.brand-mark{width:36px;height:36px}.site-header nav{position:absolute;top:65px;left:0;right:0;background:var(--surface);padding:10px 14px;border-bottom:1px solid var(--line);overflow-x:auto;white-space:nowrap}.site-header nav a{font-size:13px}.header-actions .text-button{display:none}.primary-button.small{padding:8px 13px}.hero{padding-top:76px;padding-bottom:32px}.hero h1{font-size:43px}.hero-note{font-size:15px}.search-panel{padding:22px}.search-row{display:grid}.search-row .primary-button{margin-top:6px}.quick-actions{grid-template-columns:repeat(2,1fr)}.quick-card{min-height:116px;padding:18px}.content-section{padding-block:64px}.section-heading{align-items:flex-start;flex-direction:column;margin-bottom:24px}.section-heading h2{font-size:34px}.category-grid,.supplier-grid,.request-grid,.project-grid,.service-grid{grid-template-columns:1fr}.category-card{min-height:180px}.region-grid{flex-wrap:nowrap;overflow-x:auto;padding-bottom:8px}.region-pill{white-space:nowrap}.risk-section{align-items:flex-start;padding:22px;flex-wrap:wrap}.risk-section .text-button{margin-left:0}.footer-main,.footer-bottom{align-items:flex-start;flex-direction:column;gap:24px}.footer-links{display:grid;grid-template-columns:repeat(2,1fr)}.drawer{padding:20px}.drawer-header h2{font-size:25px}.detail-dl{grid-template-columns:1fr}.supplier-card{min-height:320px}}