:root{--ink:#10231f;--muted:#5d6d68;--line:rgba(16,35,31,.13);--paper:#f7f9f5;--green:#2f806d;--dark:#153d34;--mint:#dceee7;--max:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--paper);font-family:PingFang SC,Microsoft YaHei,system-ui,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}.shell{width:min(calc(100% - 40px),var(--max));margin:auto}.site-header{position:sticky;top:0;z-index:20;border-bottom:1px solid var(--line);background:#f7f9f5f0;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.nav-wrap{height:82px;display:flex;align-items:center;justify-content:space-between;gap:22px}.brand{display:flex;align-items:center;white-space:nowrap}.nav-links{display:flex;align-items:center;gap:2px;padding:5px;border:1px solid rgba(47,128,109,.16);border-radius:8px;background:#e7f0ec}.nav-links a{min-height:36px;display:inline-flex;align-items:center;padding:0 12px;border-radius:5px;color:#334b44;font-size:13px;font-weight:700}.nav-links a:hover,.nav-links a.active{background:#fff;color:var(--ink);box-shadow:0 3px 10px #10231f14}.nav-links .nav-contact{margin-left:4px;color:#fff;background:#397c6c}.menu-btn{display:none}.hero{padding:110px 0 92px;background:linear-gradient(90deg,rgba(47,128,109,.055) 1px,transparent 1px) 0 0/64px 64px,linear-gradient(rgba(47,128,109,.05) 1px,transparent 1px) 0 0/64px 64px,#eef5f0}.hero-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:72px;align-items:center}.eyebrow{color:var(--green);font-size:12px;font-weight:800;letter-spacing:.6px}.hero h1{margin:20px 0;font-size:clamp(44px,5.2vw,70px);line-height:1.13;letter-spacing:0}.hero h1 span{display:block;color:var(--green)}.hero p{max-width:590px;margin:0;color:var(--muted);font-size:17px;line-height:1.9}.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px}.button{min-height:46px;display:inline-flex;align-items:center;justify-content:center;padding:0 21px;border:1px solid transparent;border-radius:999px;color:#fff;background:var(--ink);font-size:14px;font-weight:750;transition:.2s}.button:hover{transform:translateY(-2px);background:var(--dark)}.button.outline{color:var(--ink);background:#fff;border-color:var(--line)}.architecture,.pilot-board{padding:25px;border:1px solid rgba(255,255,255,.8);border-radius:8px;background:#ffffffc2;box-shadow:0 24px 70px #10231f1c}.arch-head{display:flex;justify-content:space-between;gap:18px;padding-bottom:17px;border-bottom:1px solid var(--line);font-size:13px}.arch-head span{color:var(--green);font-size:11px}.arch-row{display:grid;grid-template-columns:110px 1fr;gap:15px;align-items:center;padding:17px;border:1px solid var(--line);background:#fff}.arch-row b{font-size:13px}.arch-row i{color:var(--muted);font-size:11px;font-style:normal}.arch-row.accent{border-color:#2f806d59;background:#edf7f2}.arch-arrow{text-align:center;color:var(--green);font-size:21px;line-height:1.25}.arch-products{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.arch-products span{padding:14px;color:#fff;background:var(--ink);font-size:13px;font-weight:800}.arch-products span:nth-child(2){background:var(--green)}.arch-products span:nth-child(3){color:var(--ink);background:var(--mint)}.arch-products small{font-size:9px;font-weight:500}.section{padding:102px 0}.tint{background:#eaf1ec}.dark{color:#fff;background:var(--dark)}.head{max-width:720px;margin-bottom:45px}.head h2{margin:13px 0 15px;font-size:clamp(32px,4vw,50px);line-height:1.2;letter-spacing:0}.head p{margin:0;color:var(--muted);font-size:16px;line-height:1.85}.dark .eyebrow{color:#91c9b8}.cards{display:grid;border-top:1px solid var(--line);border-left:1px solid var(--line)}.cards.three{grid-template-columns:repeat(3,1fr)}.cards article{min-height:255px;padding:30px 26px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}.cards span,.steps>article>span{color:var(--green);font:15px Georgia,serif}.cards h3{margin:32px 0 11px;font-size:20px}.cards p,.steps p{margin:0;color:var(--muted);font-size:13px;line-height:1.8}.cards strong{display:block;margin-top:24px;font-size:11px;line-height:1.7}.split{display:grid;grid-template-columns:.8fr 1.2fr;gap:80px;align-items:start}.steps{border-top:1px solid var(--line)}.steps article{display:grid;grid-template-columns:45px 1fr;gap:18px;padding:22px 0;border-bottom:1px solid var(--line)}.steps h3{margin:0 0 7px;font-size:17px}.checklist{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid rgba(255,255,255,.2);border-left:1px solid rgba(255,255,255,.2)}.checklist span{min-height:88px;display:flex;align-items:center;padding:21px;border-right:1px solid rgba(255,255,255,.2);border-bottom:1px solid rgba(255,255,255,.2);color:#d1dfda;font-size:13px;line-height:1.6}.checklist span:before{content:"✓";align-self:flex-start;margin-right:10px;color:#91c9b8}.band{display:flex;justify-content:space-between;align-items:center;gap:25px;margin-top:38px;padding:28px 30px;background:#ffffff14}.band strong{font-size:18px}.band p{margin:8px 0 0;color:#b7c8c2;font-size:13px}.light{color:var(--ink);background:#fff;white-space:nowrap}.pilot-board .score{margin-top:20px;padding:20px;background:#fff;border:1px solid var(--line)}.score span,.score small{display:block;color:var(--muted);font-size:11px}.score strong{display:block;margin:9px 0 5px;color:var(--green);font-size:38px}.progress{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin:18px 0}.progress i{height:7px;background:var(--green)}.progress i:nth-child(2){opacity:.65}.progress i:nth-child(3){opacity:.3}.milestones{display:grid;gap:1px;background:var(--line)}.milestones div{display:grid;grid-template-columns:42px 1fr;gap:12px;align-items:center;padding:13px;background:#fff}.milestones b{color:var(--green);font:14px Georgia,serif}.milestones span{font-size:12px;font-weight:700}.pilot-board>p{margin:18px 0 0;color:var(--muted);font-size:12px;line-height:1.7}footer{padding:28px 0;color:#82928c;background:#0b1a17;font-size:11px}footer .beian-link{color:#9aaba5;white-space:nowrap;transition:color .2s ease}footer .beian-link:hover,footer .beian-link:focus-visible{color:#fff}.foot{display:flex;justify-content:space-between;gap:20px}@media(max-width:980px){.nav-links{display:none}.menu-btn{display:block;padding:9px;border:1px solid var(--line);border-radius:5px;background:#fff}.site-header.open .nav-links{position:absolute;top:82px;right:18px;left:18px;display:grid;padding:12px;background:#fff;box-shadow:0 20px 50px #10231f1f}.hero-grid,.split{grid-template-columns:1fr}.hero-grid{gap:46px}.cards.three,.checklist{grid-template-columns:repeat(2,1fr)}}@media(max-width:620px){.shell{width:min(calc(100% - 28px),var(--max))}.nav-wrap{height:70px}.brand-copy em{font-size:15px}.site-header.open .nav-links{top:70px}.hero{padding:76px 0 68px}.hero h1{font-size:42px}.hero p{font-size:15px}.section{padding:72px 0}.cards.three,.checklist{grid-template-columns:1fr}.cards article{min-height:auto}.architecture,.pilot-board{padding:17px}.arch-row{grid-template-columns:1fr;gap:6px}.split{gap:36px}.band{display:grid;padding:25px}.band .button{width:100%}.foot{flex-direction:column}}