:root{--ink:#163e37;--green:#147d68;--muted:#667c74;--line:#dce6df;--paper:#f5f7f1}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.7 -apple-system,BlinkMacSystemFont,'Segoe UI','Microsoft YaHei',sans-serif}a{color:inherit;text-decoration:none}nav{max-width:1200px;padding:25px 32px;margin:auto;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{font-size:22px;font-weight:700;letter-spacing:-.8px}.brand b{display:inline-grid;place-items:center;background:var(--green);color:white;font-size:18px;border-radius:10px;width:36px;height:36px;margin-right:10px}.navlinks{display:flex;align-items:center;gap:28px;font-size:14px}.button{display:inline-block;background:var(--green);color:white;padding:12px 22px;border-radius:7px;font-size:14px;font-weight:600}.button.secondary{background:transparent;color:var(--green);border:1px solid #b6cec1}.tag{font-size:12px;letter-spacing:2px;color:var(--green);font-weight:600}.hero{max-width:1200px;padding:92px 32px 80px;margin:auto;display:grid;grid-template-columns:1.1fr 1fr;align-items:center;gap:65px}h1{font-size:60px;line-height:1.17;letter-spacing:-3px;margin:20px 0 25px;font-weight:650}h1 em{font-style:normal;color:var(--green)}.intro{max-width:480px;color:var(--muted);font-size:17px}.actions{display:flex;gap:12px;margin-top:32px}.hero-note{font-size:12px;color:var(--muted);margin-top:20px}.visual{background:#e4eee4;padding:30px;border-radius:20px;position:relative}.visual-top{display:flex;justify-content:space-between;font-size:12px;color:var(--muted)}.pulse{color:var(--green)}.flow-line{width:1px;background:#b8d1bd;height:28px;margin:auto}.flow{background:white;padding:18px 22px;border:1px solid #d2e3d6;border-radius:11px;display:flex;align-items:center;gap:16px}.flow i{width:34px;height:34px;display:grid;place-items:center;background:#eff5ee;border-radius:50%;font-style:normal;color:var(--green)}.flow strong{font-size:15px;display:block}.flow small{color:var(--muted);font-size:12px}.flow.last{background:var(--green);color:white}.flow.last small{color:#b9ddd0}.flow.last i{background:#ffffff20;color:white}.visual-caption{font-size:12px;color:var(--muted);text-align:center;margin:20px 0 0}.section{max-width:1200px;margin:auto;padding:65px 32px;border-top:1px solid var(--line)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:35px}h2{font-size:34px;line-height:1.3;letter-spacing:-1px;margin:8px 0}h3{font-size:21px;margin:16px 0 10px}.section-head p,.card p,.step p{color:var(--muted);font-size:14px}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.card{padding:25px 28px;background:#fff;border:1px solid var(--line);border-radius:12px}.number{font-size:12px;letter-spacing:2px;color:var(--green)}.card ul{padding-left:18px;font-size:13px;color:var(--muted);line-height:2.2}.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}.step{border-top:2px solid #c3d9c6;padding-top:15px}.download{display:flex;align-items:center;justify-content:space-between;gap:25px;padding:26px 0;border-bottom:1px solid var(--line)}.download strong{font-size:19px}.download p{margin:5px 0;font-size:13px;color:var(--muted)}.download a{white-space:nowrap}.status-note{margin-top:25px;font-size:13px;color:var(--muted)}footer{max-width:1200px;padding:35px 32px;margin:auto;color:var(--muted);display:flex;justify-content:space-between;font-size:12px}.doc-layout{max-width:1200px;margin:55px auto;display:grid;grid-template-columns:200px 1fr;gap:55px;padding:0 32px}.doc-nav{position:sticky;top:30px;align-self:start;display:flex;flex-direction:column;gap:12px;font-size:14px;color:var(--muted)}.doc-nav a:hover{color:var(--green)}article{min-width:0}article h1{font-size:43px;letter-spacing:-1px;margin-top:0}article section{margin-bottom:55px;scroll-margin-top:20px}article p,article li{font-size:15px}article h2{font-size:26px;border-bottom:1px solid var(--line);padding-bottom:15px}pre{background:#173d35;color:#dcefe4;border-radius:10px;padding:22px;overflow:auto;font-size:13px;line-height:1.8}code{font-family:Consolas,monospace}table{border-collapse:collapse;width:100%;font-size:13px}td,th{text-align:left;border-bottom:1px solid var(--line);padding:12px}.table-scroll{overflow:auto}.note{padding:16px 20px;background:#e7eee4;border-left:3px solid var(--green);font-size:14px}.inline-link{color:var(--green);text-decoration:underline}a:focus-visible{outline:2px solid var(--green);outline-offset:5px}@media(max-width:850px){.hero{grid-template-columns:1fr;padding-top:55px;gap:40px}h1{font-size:46px}.cards,.steps{grid-template-columns:1fr}.navlinks{gap:15px}.navlinks .optional{display:none}.section-head{display:block}.doc-layout{grid-template-columns:1fr;gap:30px}.doc-nav{position:static;flex-direction:row;flex-wrap:wrap}.download{align-items:start}.visual{max-width:550px;width:100%}}@media(max-width:480px){nav,.hero,.section{padding-left:20px;padding-right:20px}.brand{font-size:18px}.navlinks{gap:12px;font-size:12px}.navlinks .button{padding:8px 10px}h1{font-size:40px}.actions{flex-wrap:wrap}.download{flex-direction:column;gap:12px}footer{display:block}.doc-layout{padding:0 20px}article h1{font-size:34px}}
