:root{--ink:#13251f;--muted:#65736c;--paper:#f5f2e9;--deep:#eae5d8;--green:#075a46;--green2:#0b8061;--lime:#b9d342;--orange:#ef6b3b;--line:rgba(19,37,31,.14);--white:#fffdf8;--shadow:0 20px 60px rgba(24,42,35,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font-family:"PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-decoration:none}button,input,select{font:inherit}.shell{width:min(1200px,calc(100% - 48px));margin:auto}.topline{height:5px;background:linear-gradient(90deg,var(--lime) 0 30%,var(--green) 30% 74%,var(--orange) 74%)}
header{position:sticky;top:0;z-index:20;background:rgba(245,242,233,.94);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}nav{height:76px;display:flex;align-items:center;gap:28px}.brand{margin-right:auto;display:flex;align-items:center;gap:12px}.mark{width:40px;height:40px;display:grid;place-items:center;color:white;background:var(--green);border-radius:50% 50% 50% 10%;font-weight:800}.brand strong{display:block;font:700 17px/1.2 "Songti SC",serif}.brand small{display:block;margin-top:4px;color:var(--muted);font-size:9px;letter-spacing:.14em}.navlinks{display:flex;align-items:center;gap:24px;font-size:13px}.navlinks a:hover{color:var(--green)}.login{padding:11px 18px;color:white!important;background:var(--green);border-radius:999px}
.hero{position:relative;overflow:hidden;padding:92px 0 78px;border-bottom:1px solid var(--line)}.hero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 78% 30%,rgba(185,211,66,.34),transparent 25%),repeating-linear-gradient(0deg,transparent 0 59px,rgba(7,90,70,.04) 60px)}.hero-grid{position:relative;display:grid;grid-template-columns:1.15fr .85fr;align-items:center;gap:70px}.eyebrow{color:var(--green);font-size:11px;font-weight:800;letter-spacing:.18em}.hero h1{max-width:700px;margin:18px 0;font:800 clamp(44px,6vw,72px)/1.12 "Songti SC",serif;letter-spacing:-.04em}.hero h1 em{color:var(--green);font-style:normal}.hero p{max-width:680px;color:var(--muted);font-size:15px;line-height:1.9}.actions{display:flex;gap:10px;margin-top:28px}.btn{display:inline-block;padding:13px 20px;border:1px solid var(--ink);border-radius:3px;font-size:13px;font-weight:700;cursor:pointer;background:transparent}.btn.primary{color:white;background:var(--green);border-color:var(--green)}.btn:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(7,90,70,.15)}
.hero-card{padding:30px;color:white;background:var(--green);box-shadow:var(--shadow);border-radius:5px;transform:rotate(2deg)}.hero-card .big{margin:14px 0;font:800 58px/1 Georgia,serif}.hero-card .unit{color:var(--lime);font-size:12px}.hero-card hr{border:0;border-top:1px solid rgba(255,255,255,.18);margin:24px 0}.mini-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.mini-stats b{display:block;font-size:20px}.mini-stats span{opacity:.62;font-size:10px}
section{padding:78px 0}.section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:30px}.section-head h2{margin:8px 0 0;font:800 38px/1.2 "Songti SC",serif}.section-head p{max-width:520px;margin:0;color:var(--muted);font-size:12px;line-height:1.7}.filters{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:25px}.filter,.search{padding:10px 14px;border:1px solid var(--line);background:var(--white);border-radius:999px;color:var(--muted)}.filter{cursor:pointer}.filter.active{color:white;background:var(--green);border-color:var(--green)}.search{min-width:270px;border-radius:4px;margin-left:auto}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.card{position:relative;padding:24px;background:var(--white);border:1px solid var(--line);transition:.25s}.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:rgba(7,90,70,.35)}.tag{display:inline-block;padding:5px 9px;color:var(--green);background:#e7f0e9;border-radius:999px;font-size:10px;font-weight:700}.tag.orange{color:#a84a29;background:#fff0e9}.card h3{margin:17px 0 10px;font:700 21px/1.42 "Songti SC",serif}.card p{min-height:44px;margin:0;color:var(--muted);font-size:12px;line-height:1.75}.meta{display:flex;flex-wrap:wrap;gap:13px;margin-top:20px;padding-top:16px;border-top:1px solid var(--line);color:var(--muted);font-size:10px}.price{margin:20px 0 0;color:var(--green);font:800 24px/1 Georgia,serif}.card .link{display:inline-block;margin-top:18px;color:var(--green);font-size:11px;font-weight:800}
.process{background:var(--green);color:white}.process .eyebrow{color:var(--lime)}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.18)}.step{padding:28px;background:var(--green)}.step b{color:var(--lime);font:800 32px/1 Georgia,serif}.step h3{margin:35px 0 8px;font:700 18px/1.3 "Songti SC",serif}.step p{margin:0;opacity:.6;font-size:11px;line-height:1.7}
.split{display:grid;grid-template-columns:1fr 1fr;gap:20px}.panel{padding:28px;background:var(--white);border:1px solid var(--line)}.panel h3{margin:0 0 18px;font:700 22px/1.3 "Songti SC",serif}.row{display:flex;justify-content:space-between;gap:20px;padding:13px 0;border-bottom:1px solid var(--line);font-size:12px}.row:last-child{border:0}.row span{color:var(--muted)}.meter{height:8px;margin-top:8px;overflow:hidden;background:#e3e8de;border-radius:99px}.meter i{display:block;height:100%;background:linear-gradient(90deg,var(--green),var(--lime))}
footer{padding:42px 0;color:rgba(255,255,255,.62);background:#102820;font-size:11px}.footerline{display:flex;justify-content:space-between;gap:20px}.empty{display:none;text-align:center;padding:45px;color:var(--muted);background:var(--white);border:1px solid var(--line)}
@media(max-width:900px){.navlinks a:not(.login){display:none}.hero-grid,.split{grid-template-columns:1fr}.cards{grid-template-columns:repeat(2,1fr)}.steps{grid-template-columns:repeat(2,1fr)}.hero-card{transform:none}.search{margin-left:0;width:100%}}@media(max-width:600px){.shell{width:calc(100% - 30px)}nav{height:68px}.brand small{display:none}.hero{padding:60px 0}.hero h1{font-size:42px}.cards,.steps{grid-template-columns:1fr}.section-head,.footerline{display:block}.section-head h2{font-size:32px}.section-head p{margin-top:12px}.actions{flex-wrap:wrap}}
.menu-toggle{display:none;padding:10px 13px;border:1px solid var(--green);color:var(--green);background:transparent;font-weight:800;cursor:pointer}.navlinks a.active{color:var(--green);font-weight:800}.navlinks .consult-link{color:var(--green);font-weight:800}.join-modal{position:fixed;inset:0;z-index:60;display:none;align-items:center;justify-content:center;padding:24px;background:rgba(16,40,32,.62);backdrop-filter:blur(12px)}.join-modal.open{display:flex}.join-panel{width:min(760px,100%);max-height:min(88vh,820px);overflow:auto;padding:32px;background:var(--paper);border:1px solid var(--line);box-shadow:var(--shadow)}.join-close{float:right;width:38px;height:38px;border:0;color:white;background:var(--green);font-size:25px;cursor:pointer}.join-panel h2{margin:12px 0 24px;font:800 34px/1.2 "Songti SC",serif}.join-panel label{display:grid;gap:8px;margin-bottom:14px;color:var(--muted);font-size:12px;font-weight:700}.join-panel input,.join-panel textarea{width:100%;border:1px solid var(--line);background:#fffaf0;padding:12px;color:var(--ink);outline:none}.join-panel input:focus,.join-panel textarea:focus{border-color:var(--green);box-shadow:0 0 0 3px rgba(185,211,66,.35)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.join-message{min-height:20px;margin:8px 0 16px;color:var(--green);font-size:13px;font-weight:800;line-height:1.5}.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:20px}.product-tile{padding:18px;background:var(--white);border:1px solid var(--line)}.product-tile b{display:block;margin-bottom:8px;color:var(--green);font-size:15px}.product-tile span{display:block;color:var(--muted);font-size:11px;line-height:1.7}.scenario-band{background:var(--deep)}.model-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:18px}.model-item{display:flex;justify-content:space-between;gap:14px;padding:14px 0;border-bottom:1px solid var(--line);font-size:12px}.model-item strong{font-size:13px}.model-item span{color:var(--muted);text-align:right}.note{margin-top:18px;color:var(--muted);font-size:12px;line-height:1.8}
.pricing-frame-wrap{height:min(980px,78vh);background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow);overflow:hidden}.pricing-frame{width:100%;height:100%;border:0;background:white}
@media(max-width:900px){header nav{position:relative}.menu-toggle{display:block}.navlinks{position:absolute;top:68px;left:0;right:0;display:none;padding:14px;background:rgba(245,242,233,.98);border:1px solid var(--line);box-shadow:var(--shadow)}.navlinks.open{display:grid;grid-template-columns:1fr;gap:6px}.navlinks a,.navlinks a:not(.login){display:block;padding:13px 10px;border-bottom:1px solid var(--line)}.navlinks .login{width:max-content;margin:6px 0 0}.product-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.form-grid,.model-list,.product-grid{grid-template-columns:1fr}.join-panel{padding:22px}.model-item{display:block}.model-item span{text-align:left;margin-top:6px}}
.article-shell{width:min(860px,calc(100% - 48px));margin:auto}.article-hero{padding-bottom:42px}.article-kicker{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:18px;color:var(--muted);font-size:12px}.article-title{margin:0 0 18px;font:800 clamp(34px,5vw,58px)/1.18 "Songti SC",serif}.article-summary{max-width:760px;margin:0;color:var(--muted);font-size:16px;line-height:1.9}.article-cover{width:100%;max-height:420px;object-fit:cover;margin:34px 0 0;border:1px solid var(--line);background:var(--deep)}.article-body{padding:54px 0 84px}.article-content{padding:38px;background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow)}.article-content h2{margin:28px 0 12px;color:var(--green);font-size:20px;line-height:1.45}.article-content h2:first-child{margin-top:0}.article-content p{margin:0 0 18px;color:var(--ink);font-size:16px;line-height:2}.article-content p:last-child{margin-bottom:0}.article-back{display:inline-block;margin-top:26px;color:var(--green);font-size:13px;font-weight:800}.article-empty{padding:45px;text-align:center;color:var(--muted);background:var(--white);border:1px solid var(--line)}@media(max-width:600px){.article-shell{width:calc(100% - 30px)}.article-content{padding:24px}.article-body{padding-top:34px}.article-title{font-size:34px}}
.demand-summary{margin:0 0 18px;color:var(--muted);font-size:14px;line-height:1.8}.demand-meta{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:18px 0 24px}.demand-meta span{padding:12px;color:var(--green);background:#fffaf0;border:1px solid var(--line);font-size:12px;font-weight:800;line-height:1.4}.demand-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}@media(max-width:600px){.demand-meta{grid-template-columns:1fr}}