:root{--cream:#ffedd7;--paper:#fff8ee;--white:#fff;--ink:#100904;--orange:#dc5000;--green:#445231;--blue:#315f78;--red:#b82d1d;--body:#463527;--muted:#6e5b48;--line:rgba(16,9,4,.16);--disp:'Archivo',sans-serif;--serif:'Literata',serif;--mono:'DM Mono',monospace;--pad:clamp(20px,4vw,64px);--max:1180px}
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#hdr{position:sticky;top:0;z-index:20;background:rgba(255,237,215,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.hrow{height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}.hlogo{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:700}.hmark{width:27px;height:27px;border:2px solid var(--ink);border-radius:50% 47% 52% 44%;position:relative;background:var(--ink)}.hmark:before,.hmark:after{content:'';position:absolute;top:8px;width:4px;height:4px;background:white;border-radius:50%}.hmark:before{left:6px}.hmark:after{right:6px}nav{display:flex;gap:clamp(15px,2vw,30px)}nav a{font-size:14px;color:var(--body)}nav a:hover,nav a.here{color:var(--orange)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:44px;padding:0 18px;border:1.5px solid var(--ink);background:var(--ink);color:var(--paper);font-weight:700;transition:.18s transform,.18s box-shadow}.btn:hover{transform:translate(-2px,-2px);box-shadow:4px 4px 0 var(--orange)}.btn.light{background:transparent;color:var(--ink)}.btn.orange{background:var(--orange);border-color:var(--orange)}
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.xiaohei-scene{background:#fff;border:1.5px solid var(--ink);min-height:310px;display:grid;place-items:center;position:relative;overflow:hidden}.xiaohei-scene:after{content:'AGG FIELD NOTE';position:absolute;right:15px;bottom:12px;font:500 9px var(--mono);letter-spacing:.14em;color:var(--muted)}.xiaohei-scene svg{width:100%;height:auto}.sketch{fill:none;stroke:var(--ink);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.sketch.orange{stroke:var(--orange)}.sketch.blue{stroke:var(--blue)}.sketch.red{stroke:var(--red)}.xh{fill:var(--ink)}.eye{fill:white}.scribble{font:600 13px 'Caveat',cursive;fill:var(--ink)}.scribble.orange{fill:var(--orange)}.scribble.blue{fill:var(--blue)}.scribble.red{fill:var(--red)}
.guide-index{padding:clamp(55px,7vw,90px) 0}.section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:34px}.section-head h2{font-size:clamp(29px,4vw,48px);letter-spacing:-.04em;line-height:1.05;margin:10px 0}.section-head p{max-width:580px;color:var(--body)}.guide-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.guide-card{background:var(--paper);border:1.5px solid var(--ink);padding:clamp(24px,3.5vw,42px);min-height:330px;display:flex;flex-direction:column;position:relative;transition:.2s}.guide-card:hover{transform:translate(-3px,-3px);box-shadow:7px 7px 0 var(--ink)}.guide-card .num{font:500 11px var(--mono);color:var(--orange)}.guide-card h2{font-size:clamp(25px,3vw,38px);line-height:1.06;letter-spacing:-.035em;margin:30px 0 14px}.guide-card p{color:var(--body);max-width:50ch}.tags{display:flex;gap:7px;flex-wrap:wrap;margin:18px 0 28px}.tag{border:1px solid var(--line);background:white;padding:5px 8px;font:500 10px var(--mono);color:var(--muted)}.card-link{margin-top:auto;font:700 13px var(--mono);color:var(--orange)}
.guide-shell{display:grid;grid-template-columns:250px minmax(0,1fr);gap:clamp(35px,6vw,80px);padding:50px 0}.side{position:sticky;top:98px;align-self:start}.side-label{font:500 10px var(--mono);letter-spacing:.12em;color:var(--muted);margin-bottom:12px}.side a{display:block;padding:10px 0;border-bottom:1px dashed var(--line);font-size:13px;color:var(--body)}.side a:hover{color:var(--orange)}.side .back{color:var(--orange);font-family:var(--mono);margin-bottom:22px}.article{max-width:800px}.step{scroll-margin-top:100px;padding:0 0 58px;margin-bottom:58px;border-bottom:1.5px dashed var(--line)}.step-no{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:50%;background:var(--ink);color:white;font:500 12px var(--mono);margin-bottom:15px}.step h2{font-size:clamp(27px,3.6vw,44px);letter-spacing:-.035em;line-height:1.08;margin:0 0 15px}.step>p{color:var(--body);font-family:var(--serif);font-size:17px}.resource-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:24px 0}.resource{background:var(--paper);border:1px solid var(--line);padding:18px}.resource .rl{font:500 10px var(--mono);color:var(--orange);text-transform:uppercase;letter-spacing:.1em}.resource h3{font-size:16px;margin:7px 0}.resource p{font-size:13px;color:var(--muted);margin:0 0 13px}.resource a{font:700 12px var(--mono);text-decoration:underline;text-underline-offset:3px}.callout{display:grid;grid-template-columns:24px 1fr;gap:12px;padding:17px 18px;margin:20px 0;border-left:4px solid var(--orange);background:rgba(255,248,238,.7);font-size:14px}.callout strong{font-family:var(--mono);font-size:11px;text-transform:uppercase}.callout.safe{border-color:var(--green)}.callout.warn{border-color:var(--red)}.mark{width:18px;height:18px;border:1.5px solid currentColor;border-radius:50%;display:grid;place-items:center;font:700 10px var(--mono)}
.codebox{background:var(--ink);color:#fff8ee;margin:20px 0;border:1px solid var(--ink)}.codehead{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;border-bottom:1px solid rgba(255,255,255,.16);font:500 10px var(--mono);color:rgba(255,248,238,.62)}pre{margin:0;padding:17px;overflow:auto;font:13px/1.65 var(--mono)}.copy{border:0;background:transparent;color:var(--cream);font:500 10px var(--mono);cursor:pointer}.expected{padding:15px 17px;border:1px solid var(--line);background:white;font:13px var(--mono);margin-top:-8px}.expected b{color:var(--green)}
.check-panel{background:var(--paper);border:1.5px solid var(--ink);padding:clamp(22px,4vw,38px);margin:28px 0}.check-panel h3{font-size:22px;margin:0 0 8px}.check-panel textarea{width:100%;min-height:130px;margin:15px 0;padding:14px;border:1px solid var(--line);background:white;font:13px/1.5 var(--mono);resize:vertical}.result{display:none;margin-top:14px;padding:14px;border:1px solid var(--line);background:white}.result.show{display:block}.result.ok{border-color:var(--green);color:var(--green)}.result.bad{border-color:var(--red);color:var(--red)}.checklist{display:grid;gap:10px;margin:20px 0}.checkitem{display:flex;align-items:flex-start;gap:11px;background:var(--paper);border:1px solid var(--line);padding:13px}.checkitem input{accent-color:var(--orange);margin-top:4px}.diagram{padding:20px;border:1.5px solid var(--ink);background:white;margin:24px 0;font:500 12px var(--mono);overflow:auto}.flow{display:flex;align-items:center;justify-content:center;gap:10px;min-width:640px}.flow span{border:1px solid var(--ink);padding:12px;background:var(--paper)}.flow b{color:var(--orange)}
.next-guide{background:var(--ink);color:var(--paper);padding:clamp(28px,5vw,52px);display:flex;justify-content:space-between;align-items:center;gap:25px}.next-guide h2{font-size:clamp(24px,3.5vw,40px);margin:6px 0}.next-guide p{color:rgba(255,248,238,.68)}footer{background:var(--ink);color:var(--cream);margin-top:70px}.frow{padding:45px 0;display:flex;justify-content:space-between;gap:35px}.frow p{color:rgba(255,237,215,.62);font-size:12px;max-width:660px}.flinks{display:flex;gap:20px;font-size:13px}
.guide-card-parent{grid-column:span 2}.guide-subroutes{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:8px 0 26px}.guide-subroutes a{border:1px solid var(--line);background:#fff;padding:14px;transition:.18s}.guide-subroutes a:hover{transform:translate(-2px,-2px);box-shadow:4px 4px 0 var(--ink)}.guide-subroutes span{display:block;font:500 10px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--orange);margin-bottom:6px}.guide-subroutes b{display:block;font-size:14px;line-height:1.35;color:var(--ink)}
@media(max-width:820px){nav{display:none}.hero-grid,.guide-shell{grid-template-columns:1fr}.side{position:static}.side a:not(.back){display:none}.guide-grid{grid-template-columns:1fr}.hero-grid{gap:34px}.xiaohei-scene{min-height:250px}.resource-grid{grid-template-columns:1fr}.section-head,.next-guide,.frow{align-items:flex-start;flex-direction:column}.guide-shell{padding-top:28px}.hrow>.btn{display:none}}
@media(max-width:820px){.guide-card-parent{grid-column:auto}.guide-subroutes{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}