:root{
  --sage:#8B9D8E; --sage-d:#6E8272; --sage-dd:#4E5F52; --sage-l:#E6ECE7; --sage-ll:#F3F6F3;
  --rose:#C4939A; --rose-d:#A9737B; --rose-l:#F5E8EA;
  --ink:#2A2E2B; --muted:#6B716D; --line:#E4E6E4; --chip:#ECEDEF; --bg:#FFFFFF;
  --font:"Nunito Sans",-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px); padding-bottom:env(safe-area-inset-bottom,0px);
}
*,*::before,*::after{box-sizing:inherit}
html{scroll-padding-top:calc(88px + env(safe-area-inset-top,0px));scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);font-size:15.5px;line-height:1.62;-webkit-font-smoothing:antialiased}

a{color:var(--sage-dd)}
:focus-visible{outline:2px solid var(--rose-d);outline-offset:2px;border-radius:4px}

/* layout */
.app{display:grid;grid-template-columns:272px 1fr;min-height:100vh}
.side{background:var(--sage);position:sticky;top:0;height:100vh;display:flex;flex-direction:column;padding:22px 14px 18px;overflow-y:auto}
.brand{display:flex;flex-direction:column;align-items:center;gap:6px;padding:4px 0 26px}
.brand .mark{width:44px;height:auto;color:#141815;display:block}
.brand-n{font-weight:800;letter-spacing:.01em;color:var(--ink);font-size:14px}
.side-lbl{font-size:12px;font-weight:700;color:var(--sage-dd);padding:0 12px 8px}
.nav-i{display:flex;gap:12px;align-items:center;padding:9px 12px;border-radius:6px;color:var(--ink);text-decoration:none;font-size:13.5px;font-weight:600;line-height:1.3}
.nav-i svg{width:21px;height:21px;flex:none;fill:none;stroke:var(--ink);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.nav-i:hover{background:rgba(255,255,255,.14)}
.nav-i[aria-current="page"]{background:rgba(255,255,255,.28)}
.side-foot{margin-top:auto;padding:18px 12px 0;font-size:12px;color:var(--ink);line-height:1.5}
.side-foot strong{display:block;font-size:13px}
.side-foot span{color:var(--sage-dd)}

.main{min-width:0;display:flex;flex-direction:column}
.bar{position:sticky;top:0;z-index:5;background:rgba(255,255,255,.96);backdrop-filter:blur(6px);border-bottom:1px solid var(--line);display:flex;align-items:center;gap:16px;padding:14px clamp(18px,4vw,44px);padding-top:calc(14px + env(safe-area-inset-top,0px))}
.crumb{font-size:13px;color:var(--muted);flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.crumb b{color:var(--ink);font-weight:700}
.seg{display:inline-flex;border:1px solid var(--sage);border-radius:7px;overflow:hidden;flex:none}
.seg button{font:inherit;font-size:13px;font-weight:700;border:0;background:#fff;color:var(--sage-dd);padding:7px 14px;cursor:pointer;display:flex;align-items:center;gap:7px}
.seg button+button{border-left:1px solid var(--sage)}
.seg button[aria-pressed="true"]{background:var(--sage);color:#fff}
.seg small{font-weight:600;opacity:.8}
.btn-o{font:inherit;font-size:13px;font-weight:600;border:1px solid var(--rose);color:var(--rose-d);background:#fff;border-radius:7px;padding:7px 13px;cursor:pointer;display:flex;gap:7px;align-items:center;flex:none}
.btn-o svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.7}
.btn-o:hover{background:var(--rose-l)}

.content{padding:34px clamp(18px,4vw,44px) 80px}
.doc-h{max-width:760px;margin-bottom:30px;padding-bottom:22px;border-bottom:2px solid var(--rose)}
.doc-h h1{font-size:clamp(26px,3.2vw,34px);line-height:1.15;margin:0 0 10px;font-weight:800;letter-spacing:-.01em}
.lead{margin:0 0 16px;color:var(--muted);font-size:16px;max-width:64ch}
.meta{display:flex;flex-wrap:wrap;gap:8px}
.meta span{background:var(--chip);border-radius:5px;padding:4px 11px;font-size:12.5px;font-weight:600;color:var(--ink)}
.tr-note{margin:14px 0 0;font-size:13px;color:var(--sage-dd);background:var(--sage-ll);border-left:3px solid var(--sage);padding:8px 12px;border-radius:0 5px 5px 0}

.doc-grid{display:grid;grid-template-columns:minmax(0,760px) 250px;gap:56px;align-items:start}
.doc-grid:not(:has(.toc)){grid-template-columns:minmax(0,860px)}
.toc{position:sticky;top:96px;max-height:calc(100vh - 120px);overflow-y:auto;font-size:12.5px;border-left:1px solid var(--line);padding-left:16px}
.toc-h{font-weight:800;font-size:13px;margin:0 0 8px}
.toc ol{list-style:none;margin:0;padding:0}
.toc li{margin:0}
.toc a{display:block;padding:4px 0;color:var(--muted);text-decoration:none;line-height:1.35}
.toc a:hover,.toc a.on{color:var(--ink)}
.toc a.on{font-weight:700;box-shadow:-17px 0 0 -15px var(--rose)}

/* prose */
.prose{max-width:760px;min-width:0}
.prose h2{font-size:18.5px;font-weight:800;margin:38px 0 12px;padding-top:4px;line-height:1.3}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:15.5px;font-weight:800;margin:26px 0 8px;color:var(--sage-dd)}
.prose p{margin:0 0 12px}
.prose ul,.prose ol{margin:0 0 14px;padding-left:22px}
.prose li{margin:4px 0}
.prose li::marker{color:var(--sage-d)}
.prose strong{font-weight:700}
.prose code{font-size:12.5px;background:var(--chip);padding:1px 6px;border-radius:4px}
.prose .small{font-size:13px;color:var(--muted)}
.tbl{overflow-x:auto;margin:6px 0 18px;border:1px solid var(--line);border-radius:6px}
.tbl table{border-collapse:collapse;width:100%;font-size:13.5px;min-width:520px}
.tbl th{text-align:left;font-weight:700;padding:10px 14px;border-bottom:2px solid var(--rose);background:#fff;white-space:nowrap}
.tbl td{padding:10px 14px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl tr:last-child td{border-bottom:0}
.tbl tbody tr:nth-child(even) td{background:var(--sage-ll)}
.tbl td p{margin:0}
.note{background:var(--sage-l);border-radius:6px;padding:14px 18px;margin:14px 0 18px}
.note p:last-child{margin:0}
.contact{display:grid;gap:10px;margin:8px 0 16px}
.contact>div{border:1px solid var(--line);border-left:3px solid var(--rose);border-radius:0 6px 6px 0;padding:10px 14px}
.contact span{display:block;font-size:12px;color:var(--muted);font-weight:600}
.imp{display:grid;grid-template-columns:180px 1fr;margin:4px 0 22px;border-top:1px solid var(--line)}
.imp dt,.imp dd{margin:0;padding:9px 0;border-bottom:1px solid var(--line)}
.imp dt{color:var(--muted);font-size:13.5px}
.imp dd{font-weight:600}
.ph{background:var(--rose-l);color:var(--rose-d);border:1px dashed var(--rose);border-radius:4px;padding:0 5px;font-weight:600;font-size:.94em}

.foot{margin-top:auto;border-top:1px solid var(--line);padding:18px clamp(18px,4vw,44px);font-size:12px;color:var(--muted);display:flex;flex-wrap:wrap;gap:6px 20px}

/* responsive */
@media (max-width:1180px){.doc-grid{grid-template-columns:minmax(0,760px)}.toc{display:none}}
@media (max-width:860px){
  .app{grid-template-columns:1fr}
  .side{position:static;height:auto;padding:14px 12px 10px;flex-direction:column}
  .brand{flex-direction:row;padding:0 4px 12px;gap:10px}
  .brand .mark{width:26px}
  .side-lbl,.side-foot{display:none}
  .navs{display:flex;overflow-x:auto;position:relative;gap:4px;padding-bottom:4px;scrollbar-width:none}
  .nav-i{white-space:nowrap;padding:8px 11px;font-size:13px}
  .nav-i svg{width:18px;height:18px}
  .crumb{display:none}
  .bar{justify-content:space-between}
  .imp{grid-template-columns:1fr}.imp dt{border-bottom:0;padding-bottom:0}
}
@media print{
  .side,.bar,.toc,.foot{display:none!important}
  .app{display:block}.content{padding:0}
  body{font-size:11pt}
  .doc-grid{display:block}
  .ph{border:1px dashed #999}
}


/* pages */
.brand{text-decoration:none}
.crumb a{color:var(--muted);text-decoration:none}
.crumb a:hover{color:var(--ink)}
.seg a,.seg .cur{font-size:13px;font-weight:700;padding:7px 14px;display:flex;align-items:center;gap:7px;text-decoration:none;color:var(--sage-dd);background:#fff}
.seg .cur{background:var(--sage);color:#fff}
.seg a+.cur,.seg .cur+a,.seg a+a{border-left:1px solid var(--sage)}
.seg small{font-weight:600;opacity:.8}
.nav-i span{display:block}
.cards{display:grid;gap:14px;max-width:820px;grid-template-columns:1fr}
@media (min-width:760px){.cards{grid-template-columns:1fr 1fr}}
.card{display:flex;gap:14px;border:1px solid var(--line);border-radius:8px;padding:18px;text-decoration:none;color:inherit;background:#fff}
.card:hover{border-color:var(--sage);background:var(--sage-ll)}
.card svg{width:22px;height:22px;flex:none;fill:none;stroke:var(--sage-dd);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;margin-top:3px}
.card h2{font-size:16px;margin:0 0 6px;font-weight:800}
.card p{margin:0 0 10px;font-size:13.5px;color:var(--muted);line-height:1.5}
.more{font-size:13px;font-weight:700;color:var(--sage-dd)}