web/style.css

:root{--ink:#12273b;--muted:#596c7a;--teal:#087d70;--line:#d9e3e8;--surface:#f3f7f9;--paper:#fff}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:88px}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Microsoft YaHei",system-ui,sans-serif;line-height:1.8}a{color:var(--teal);text-decoration:none}a:hover{text-decoration:underline}.topbar{position:sticky;top:0;z-index:20;min-height:72px;display:flex;justify-content:space-between;gap:20px;align-items:center;padding:15px max(24px,calc((100vw - 1180px)/2));border-bottom:1px solid var(--line);background:rgba(255,255,255,.97)}.brand{font-weight:750;letter-spacing:-.5px;color:var(--ink);white-space:nowrap}.brand span{color:var(--teal)}nav{display:flex;gap:24px;font-size:14px}nav a{color:var(--muted)}.landing{max-width:1180px;margin:auto;padding:0 28px}.hero{padding:75px 0 58px;max-width:900px}.eyebrow{font-size:12px;letter-spacing:1.5px;font-weight:700;color:var(--teal)}h1{font-size:clamp(36px,5.2vw,64px);line-height:1.24;letter-spacing:-1.8px;margin:22px 0}h2{font-size:26px;line-height:1.45;letter-spacing:-.5px}h3{font-size:19px;line-height:1.5}.lead{font-size:19px;max-width:740px;color:var(--muted)}.actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 17px}.button{display:inline-block;padding:11px 22px;border:1px solid var(--line);border-radius:7px;font-weight:600;color:var(--ink);font-size:14px}.primary{background:var(--teal);border-color:var(--teal);color:#fff}.button:hover{text-decoration:none;filter:brightness(.95)}.note{font-size:13px;color:var(--muted)}.pipeline{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:23px 0;gap:20px}.pipeline div{display:grid;grid-template-columns:36px 1fr;column-gap:12px}.pipeline b{grid-row:span 2;color:var(--teal);font-size:14px}.pipeline strong{font-size:17px}.pipeline span{font-size:12px;color:var(--muted)}.intro,.features{padding:48px 0 20px}.intro>p,.generator>p{color:var(--muted)}.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px}.guide{border:1px solid var(--line);border-radius:9px;padding:23px;color:var(--ink);transition:background .15s}.guide:hover{background:var(--surface);text-decoration:none}.guide small{color:var(--teal);font-size:12px}.guide h3{margin:8px 0}.guide p{font-size:14px;color:var(--muted);margin:8px 0 20px}.guide span{font-size:13px;font-weight:600;color:var(--teal)}.generator{margin-top:38px;padding:30px;background:var(--surface);border:1px solid var(--line);border-radius:10px}.section-heading{display:flex;justify-content:space-between;gap:16px;align-items:center}.section-heading h2{margin:5px 0}.section-heading .eyebrow{margin:0}.tag{font-size:11px;border:1px solid #bbd9d2;border-radius:40px;padding:4px 11px;color:var(--teal)}.form-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:24px 0}.form-grid label{display:flex;flex-direction:column;font-size:13px;gap:7px;font-weight:600}input,select,button{font:inherit}input[type=text],input[type=number],select{width:100%;border:1px solid #bdcdd6;background:white;padding:10px;border-radius:5px;color:var(--ink);font-size:14px}input:focus,select:focus,button:focus-visible,a:focus-visible{outline:2px solid var(--teal);outline-offset:3px}.buckets{padding:14px 0;border:0;display:flex;flex-wrap:wrap;gap:12px}.buckets legend{font-size:13px;font-weight:600}.buckets label{padding:6px 10px;border:1px solid var(--line);border-radius:5px;background:white;font-size:13px;cursor:pointer}.buckets input{accent-color:var(--teal);margin-right:6px}.buckets button{border:0;color:var(--teal);background:transparent;cursor:pointer;font-size:12px;padding:5px}pre{background:#142a3b;color:#e5edf2;border-radius:7px;padding:22px 24px;white-space:pre-wrap;overflow-wrap:anywhere;overflow-x:auto;position:relative;font-size:13px;line-height:1.75}pre code{background:transparent;color:inherit;padding:0}code{font-family:"Cascadia Code",Consolas,monospace;font-size:.88em;background:#eaf0f3;padding:2px 5px;border-radius:4px}.copy-code{position:absolute;right:7px;top:6px;cursor:pointer;color:#d6eee8;background:#294759;border:1px solid #537180;border-radius:4px;font-size:11px;padding:3px 8px}.error{color:#aa302b;font-size:13px}.error:empty{display:none}details{margin-top:20px;border-top:1px solid var(--line);padding-top:16px}summary{cursor:pointer;font-size:14px;font-weight:600}details .form-grid{grid-template-columns:repeat(2,minmax(120px,200px))}#ratio-result{font-size:14px;font-weight:600;color:var(--teal)}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.feature-grid article{border-top:2px solid var(--line);padding:12px 0}.feature-grid p{color:var(--muted);font-size:14px}.callout{border-left:3px solid var(--teal);padding:5px 26px;margin:30px 0 64px;background:var(--surface)}.callout h2{font-size:22px;padding-top:18px}.callout p{font-size:15px;max-width:900px}.callout a{display:inline-block;font-size:14px;margin-bottom:20px}footer{max-width:1180px;margin:auto;padding:24px 28px;border-top:1px solid var(--line);color:var(--muted);font-size:12px;display:flex;justify-content:space-between;gap:20px}.manual-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:48px;max-width:1230px;margin:0 auto;padding:38px 28px 65px}.sidebar{position:sticky;top:108px;align-self:start;font-size:13px;max-height:calc(100vh - 135px);overflow:auto}.sidebar>a{display:block;margin-bottom:10px;padding:7px 11px;border-left:2px solid transparent;color:var(--muted)}.sidebar>a.active{color:var(--teal);border-color:var(--teal);background:var(--surface)}.sidebar h2{font-size:13px;color:var(--muted);margin:25px 0 10px}.toc ul{list-style:none;padding-left:0}.toc ul ul{padding-left:13px}.toc a{color:var(--muted);font-size:12px;display:block;line-height:1.6;margin-bottom:9px}.manual{min-width:0;font-size:15px}.manual h1{font-size:34px;margin:8px 0 27px;letter-spacing:-1px}.manual h2{margin:45px 0 18px;padding-top:12px;border-top:1px solid var(--line);font-size:24px}.manual h3{font-size:18px;margin-top:28px}.manual li{margin-bottom:5px}.manual pre{font-size:12px}.table-scroll{overflow:auto;margin:22px 0}.manual table{border-collapse:collapse;width:100%;font-size:13px}.manual td,.manual th{padding:12px;text-align:left;vertical-align:top;border:1px solid var(--line)}.manual th{background:var(--surface);font-weight:600}.manual blockquote{padding:5px 20px;border-left:3px solid var(--teal);margin:20px 0;color:var(--muted)}@media(max-width:900px){.guide-grid,.feature-grid{grid-template-columns:repeat(2,1fr)}.form-grid{grid-template-columns:repeat(2,1fr)}.tag{display:none}.topbar{padding:15px 20px}nav{gap:14px}.manual-layout{grid-template-columns:185px minmax(0,1fr);gap:24px}}@media(max-width:620px){.topbar{position:relative;flex-direction:column;align-items:flex-start;gap:6px}.brand{font-size:16px}nav{font-size:12px;flex-wrap:wrap}.landing{padding:0 20px}.hero{padding:40px 0 35px}h1{font-size:40px}.lead{font-size:16px}.pipeline{grid-template-columns:repeat(2,1fr);gap:20px}.guide-grid,.feature-grid{grid-template-columns:1fr}.generator{padding:22px 16px}.form-grid{gap:12px}.form-grid label{font-size:12px}.manual-layout{display:block;padding:22px 16px}.sidebar{position:relative;top:0;max-height:none;border-bottom:1px solid var(--line);margin-bottom:28px}.sidebar .toc,.sidebar h2{display:none}.sidebar>a{display:inline-block;font-size:12px;margin:3px;padding:4px 8px}.manual h1{font-size:29px}.manual h2{font-size:22px}footer{flex-direction:column;gap:4px}.section-heading h2{font-size:23px}}