:root{--paper:#F7F6F1;--paper-2:#FFFFFF;--paper-3:#EFEDE5;--ink:#1B1D1A;--ink-2:#3A403B;--slate:#5C6560;--slate-2:#8A928C;--pine:#1F4E2C;--pine-2:#2E6B3F;--pine-wash:#E8F0E7;--marker:#FFE45C;--marker-2:#FFF3AE;--signal:#B3261E;--signal-wash:#FBEAE8;--amber:#8A6100;--rule:#D9D6CB;--rule-2:#C4C0B2;--focus:#1F4E2C;--sans:"IBM Plex Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--serif:"IBM Plex Serif",Georgia,"Times New Roman",serif;--mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;--maxw:1180px}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--paper:#141613;--paper-2:#1C201C;--paper-3:#232823;--ink:#EDEBE3;--ink-2:#CBC9C0;--slate:#9DA49D;--slate-2:#767C76;--pine:#7FC08F;--pine-2:#9BD3A8;--pine-wash:#1D2A20;--marker:#C9A400;--marker-2:#4A3D00;--signal:#F08B82;--signal-wash:#331A17;--amber:#D8A93A;--rule:#2F352F;--rule-2:#3D443D;--focus:#7FC08F}}:root[data-theme=dark]{--paper:#141613;--paper-2:#1C201C;--paper-3:#232823;--ink:#EDEBE3;--ink-2:#CBC9C0;--slate:#9DA49D;--slate-2:#767C76;--pine:#7FC08F;--pine-2:#9BD3A8;--pine-wash:#1D2A20;--marker:#C9A400;--marker-2:#4A3D00;--signal:#F08B82;--signal-wash:#331A17;--amber:#D8A93A;--rule:#2F352F;--rule-2:#3D443D;--focus:#7FC08F}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}h1,h2,h3,h4{font-family:var(--serif);font-weight:600;text-wrap:balance;margin:0;line-height:1.15}p{margin:0}a{color:inherit}button{font-family:inherit;font-size:inherit;cursor:pointer}:focus-visible{outline:2px solid var(--focus);outline-offset:2px;border-radius:2px}@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:16px}.mk{background-image:linear-gradient(104deg,transparent .3%,var(--marker) 1.8%,var(--marker) 96%,transparent 99%);background-repeat:no-repeat;background-size:100% 62%;background-position:0 68%;padding:0 .18em;color:var(--ink)}:root[data-theme=dark] .mk,:root:not([data-theme=light]) .mk{color:var(--ink)}@media (prefers-color-scheme:dark){:root:not([data-theme=light]) .mk{color:#141613}}:root[data-theme=dark] .mk{color:#141613}.hdr{position:sticky;top:env(safe-area-inset-top,0px);z-index:50;background:color-mix(in srgb,var(--paper) 88%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--rule)}.hdr-in{display:flex;align-items:center;gap:18px;min-height:58px;flex-wrap:wrap}.logo{display:flex;align-items:baseline;gap:2px;font-family:var(--serif);font-weight:700;font-size:20px;letter-spacing:-.02em;text-decoration:none}.logo span{color:var(--pine)}.logo em{font-style:normal;font-family:var(--mono);font-size:11px;color:var(--slate-2);margin-left:6px;letter-spacing:0}.nav{display:flex;gap:20px;margin-left:auto;align-items:center;flex-wrap:wrap}.nav a{font-size:14px;color:var(--slate);text-decoration:none;padding:4px 0;border-bottom:1.5px solid transparent}.nav a:hover{color:var(--ink);border-bottom-color:var(--marker)}.lang{display:inline-flex;border:1px solid var(--rule-2);border-radius:999px;overflow:hidden}.lang button{border:0;background:transparent;color:var(--slate);font-family:var(--mono);font-size:11px;font-weight:500;padding:5px 11px;letter-spacing:.06em}.lang button[aria-pressed=true]{background:var(--ink);color:var(--paper)}.hero{padding-block:56px 40px;border-bottom:1px solid var(--rule)}.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:48px;align-items:start}.eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--pine);font-weight:500}.hero h1{font-size:clamp(34px,5.2vw,54px);letter-spacing:-.025em;margin-top:14px}.hero .lede{font-size:18px;color:var(--ink-2);max-width:56ch;margin-top:18px}.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.btn{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--ink);background:var(--ink);color:var(--paper);padding:11px 20px;border-radius:3px;font-weight:600;font-size:15px;text-decoration:none;transition:transform .12s ease}.btn:hover{transform:translateY(-1px)}.btn.ghost{background:transparent;color:var(--ink);border-color:var(--rule-2)}.btn.ghost:hover{border-color:var(--ink)}.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}.std-card{border:1px solid var(--rule);background:var(--paper-2);border-radius:4px;overflow:hidden}.std-card h4{font-size:13px;font-family:var(--mono);font-weight:500;letter-spacing:.08em;text-transform:uppercase;color:var(--slate);padding:13px 16px;border-bottom:1px solid var(--rule);background:var(--paper-3)}.std-row{display:flex;gap:12px;padding:11px 16px;border-bottom:1px solid var(--rule);align-items:baseline}.std-row:last-child{border-bottom:0}.std-row code{font-family:var(--mono);font-size:12.5px;color:var(--pine);font-weight:500;white-space:nowrap}.std-row .d{font-size:13px;color:var(--slate);margin-left:auto;text-align:right;font-family:var(--mono)}.std-note{padding:12px 16px;font-size:12.5px;color:var(--slate);background:var(--paper-3);border-top:1px solid var(--rule)}section{padding-block:56px;border-bottom:1px solid var(--rule)}.sec-head{display:flex;gap:16px;align-items:baseline;margin-bottom:32px;flex-wrap:wrap}.sec-num{font-family:var(--mono);font-size:12px;color:var(--slate-2);letter-spacing:.1em;padding-top:6px}.sec-head h2{font-size:clamp(24px,3.4vw,32px);letter-spacing:-.02em}.sec-head p{color:var(--slate);font-size:15px;max-width:62ch;flex-basis:100%;margin-top:2px}.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));gap:1px;background:var(--rule);border:1px solid var(--rule);border-radius:4px;overflow:hidden}.step{background:var(--paper-2);padding:22px 20px 24px}.step .n{font-family:var(--mono);font-size:11px;color:var(--pine);font-weight:600;letter-spacing:.1em}.step h3{font-size:17px;margin-top:10px}.step p{font-size:14px;color:var(--slate);margin-top:8px}.tiers{display:grid;grid-template-columns:repeat(auto-fit,minmax(255px,1fr));gap:18px}.tier{border:1px solid var(--rule);background:var(--paper-2);border-radius:4px;padding:24px 22px 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.btn{margin-top:22px;justify-content:center}.app{display:grid;grid-template-columns:230px minmax(0,1fr) 270px;gap:28px;align-items:start}.app>div{min-width:0}.rail{position:sticky;top:calc(70px + env(safe-area-inset-top,0px));display:flex;flex-direction:column;gap:2px}.rail-h{font-family:var(--mono);font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--slate-2);padding:0 0 10px}.rail button{display:flex;gap:10px;align-items:baseline;width:100%;text-align:left;background:transparent;border:0;border-left:2px solid var(--rule);padding:7px 10px;color:var(--slate);font-size:13.5px;line-height:1.35}.rail button:hover{color:var(--ink);background:var(--paper-3)}.rail button[aria-current=true]{border-left-color:var(--pine);color:var(--ink);font-weight:600;background:var(--paper-3)}.rail button .k{font-family:var(--mono);font-size:11px;color:var(--slate-2);flex:none}.rail button.done .k{color:var(--pine)}.panel{border:1px solid var(--rule);background:var(--paper-2);border-radius:4px;overflow:hidden}.panel-h{padding:18px 22px;border-bottom:1px solid var(--rule);background:var(--paper-3)}.panel-h .k{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--pine);font-weight:500}.panel-h h2{font-size:22px;margin-top:6px;letter-spacing:-.015em}.panel-h p{font-size:13.5px;color:var(--slate);margin-top:7px;max-width:64ch}.panel-b{padding:8px 22px 22px}.q{padding:18px 0;border-bottom:1px solid var(--rule);display:grid;grid-template-columns:76px minmax(0,1fr);gap:16px}.q:last-child{border-bottom:0}.q.cond{background:var(--pine-wash);margin-inline:-22px;padding-inline:22px;border-left:3px solid var(--pine)}.clause{font-family:var(--mono);font-size:10.5px;color:var(--slate-2);line-height:1.4;padding-top:3px;word-break:break-word}.clause b{display:block;color:var(--pine);font-weight:500}.q label.lbl{display:block;font-size:15px;font-weight:600;line-height:1.4}.q 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15px;font-size:12.5px;line-height:1.35}.out-row .dot{width:6px;height:6px;border-radius:50%;flex:none;margin-top:6px;background:var(--rule-2)}.out-row.on .dot{background:var(--pine)}.out-row.off{color:var(--slate-2);text-decoration:line-through;text-decoration-color:var(--rule-2)}.out-row.on{color:var(--ink)}.out-row .cn{font-family:var(--mono);font-size:10.5px;color:var(--slate-2);flex:none}.out-f{padding:11px 15px;border-top:1px solid var(--rule);font-size:11.5px;color:var(--slate);background:var(--paper-3);font-family:var(--mono)}.prog{height:3px;background:var(--rule);border-radius:2px;overflow:hidden;margin-top:12px}.prog i{display:block;height:100%;background:var(--pine);width:0;transition:width .25s ease}.done{text-align:center;padding:52px 22px}.done .tick{width:52px;height:52px;border-radius:50%;background:var(--pine-wash);color:var(--pine);display:grid;place-items:center;margin:0 auto 18px;font-size:26px;border:1.5px solid var(--pine)}.done h2{font-size:26px}.done p{color:var(--slate);margin-top:12px;max-width:52ch;margin-inline:auto;font-size:15px}.ref{font-family:var(--mono);font-size:13px;background:var(--paper-3);border:1px solid var(--rule);padding:9px 14px;border-radius:3px;display:inline-block;margin-top:20px}.notice{border:1px solid var(--rule-2);background:var(--paper-3);border-radius:3px;padding:12px 14px;font-size:13px;color:var(--slate);display:flex;gap:10px;align-items:flex-start}.notice b{color:var(--ink);font-weight:600}.notice.warn{border-color:var(--amber);background:var(--marker-2)}:root[data-theme=dark] .notice.warn,:root:not([data-theme=light]) .notice.warn{color:var(--ink-2)}.foot{padding-block:36px 44px;color:var(--slate);font-size:13px}.foot-in{display:flex;gap:20px;flex-wrap:wrap;align-items:baseline}.foot .mono{font-family:var(--mono);font-size:11.5px;color:var(--slate-2)}.subs{margin-top:20px;border:1px solid var(--rule);border-radius:4px;overflow:hidden}.subs table{width:100%;border-collapse:collapse;font-size:13px}.subs th{background:var(--paper-3);text-align:left;padding:9px 13px;font-family:var(--mono);font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--slate);border-bottom:1px solid var(--rule);white-space:nowrap}.subs td{padding:9px 13px;border-bottom:1px solid var(--rule);color:var(--ink-2)}.subs tr:last-child td{border-bottom:0}.tblwrap{overflow-x:auto}@media (max-width:1040px){.app{grid-template-columns:200px minmax(0,1fr)}.out-wrap{grid-column:1 / -1}.out{position:static;max-width:none}}@media (max-width:760px){.hero-grid{grid-template-columns:1fr;gap:32px}.app{grid-template-columns:1fr}.rail{position:static;flex-direction:row;overflow-x:auto;min-width:0;max-width:100%;padding-bottom:6px;gap:6px;-webkit-overflow-scrolling:touch}.rail-h{display:none}.rail button{width:auto;white-space:nowrap;border-left:0;border-bottom:2px solid var(--rule);padding:7px 12px}.rail button[aria-current=true]{border-left:0;border-bottom-color:var(--pine)}.q{grid-template-columns:1fr;gap:6px}.clause{order:2;padding-top:0}.q .qbody{order:1}section{padding-block:40px}}