:root {
  --orange: #F97316;
  --orange-strong: #EA580C;
  --orange-text: #C2410C;
  --orange-soft: #FFF3E8;
  --orange-line: #FED7AA;
  --ink: #17140F;
  --muted: #57534E;
  --line: #E7E5E4;
  --alt: #FAFAF9;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: #fff; color: var(--ink); font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; line-height: 1.65; overflow-x: hidden; overflow-wrap: break-word; }
a { color: var(--orange-text); }
:focus-visible { outline: 3px solid var(--ink); outline-offset: 3px; border-radius: 6px; }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 24px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }

.site-header { position: sticky; top: 0; background: rgba(255,255,255,0.96); border-bottom: 1px solid var(--line); z-index: 10; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; height: 64px; max-width: 1120px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 19px; letter-spacing: -0.02em; color: var(--ink); text-decoration: none; flex: none; }
.brand-mark { width: 32px; height: 32px; border-radius: 10px; background: var(--orange); display: grid; place-items: center; }
.brand b { color: var(--orange-text); }
.nav { display: flex; align-items: center; gap: 18px; }
.nav a { font-weight: 700; color: var(--ink); text-decoration: none; }
.nav a:hover { color: var(--orange-text); }
.nav .cta { color: #fff; background: var(--orange-text); padding: 8px 16px; border-radius: 999px; white-space: nowrap; }
.nav .cta:hover { color: #fff; background: var(--ink); }

.crumbs { font-size: 14px; color: var(--muted); margin: 28px 0 0; padding: 0; list-style: none; display: flex; flex-wrap: wrap; gap: 6px; }
.crumbs li + li::before { content: "/"; margin-right: 6px; color: #A8A29E; }
.crumbs a { color: var(--muted); }
h1 { font-size: clamp(30px, 5vw, 44px); letter-spacing: -0.03em; margin: 14px 0 10px; line-height: 1.1; font-weight: 900; }
h2 { font-size: 24px; line-height: 1.25; letter-spacing: -0.02em; margin: 40px 0 10px; }
h3 { font-size: 18px; margin: 26px 0 6px; }
p, li { font-size: 17px; }
.meta { color: var(--muted); font-size: 14.5px; margin: 0 0 22px; }
.answer { background: var(--orange-soft); border-left: 5px solid var(--orange); border-radius: 0 14px 14px 0; padding: 16px 20px; margin: 0 0 8px; }
.answer p { margin: 0; font-size: 18px; }
.answer .label { font-size: 13px; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; color: var(--orange-text); margin-bottom: 4px; }
.toc { border: 1px solid var(--line); border-radius: 14px; padding: 14px 20px; margin: 22px 0; background: var(--alt); }
.toc p { margin: 0 0 4px; font-weight: 800; font-size: 15px; }
.toc ol { margin: 0; padding-left: 20px; }
.toc li { font-size: 15.5px; }
table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 15px; display: block; overflow-x: auto; }
th, td { text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); padding: 10px 12px 10px 0; }
th { font-size: 14px; color: var(--muted); }
.note { background: var(--alt); border: 1px solid var(--line); border-radius: 14px; padding: 14px 18px; margin: 18px 0; }
.note p { margin: 0; font-size: 16px; }
.checks { list-style: none; padding: 0; margin: 10px 0; display: grid; gap: 8px; }
.checks li { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 10px 14px; }
.checks label { display: flex; gap: 12px; align-items: flex-start; cursor: pointer; font-size: 16.5px; }
.checks input { width: 20px; height: 20px; margin-top: 4px; accent-color: var(--orange-strong); flex: none; }
.faq details { border: 1px solid var(--line); border-radius: 14px; margin-bottom: 10px; }
.faq summary { cursor: pointer; padding: 14px 18px; font-weight: 800; font-size: 17px; }
.faq details p { margin: 0; padding: 0 18px 16px; color: var(--muted); }
.next { background: var(--ink); color: #fff; border-radius: 20px; padding: 26px; margin: 44px 0 0; }
.next h2 { margin: 0 0 8px; color: #fff; }
.next p { color: #D6D3D1; margin: 0 0 16px; }
.btn { display: inline-flex; align-items: center; justify-content: center; font-weight: 800; font-size: 17px; color: #fff; background: var(--orange-strong); padding: 12px 22px; border-radius: 999px; text-decoration: none; }
.btn:hover { background: var(--orange-text); }
.related { margin: 36px 0 0; }
.related ul { padding-left: 20px; }
.sources { margin-top: 36px; font-size: 15px; }
.sources li { font-size: 15px; }
.guide-list { list-style: none; padding: 0; margin: 20px 0; display: grid; gap: 14px; }
.guide-list li { border: 1px solid var(--line); border-radius: 16px; padding: 18px 20px; }
.guide-list a { font-weight: 800; font-size: 19px; text-decoration: none; color: var(--ink); }
.guide-list a:hover { color: var(--orange-text); }
.guide-list p { margin: 6px 0 0; color: var(--muted); font-size: 16px; }
.qa { margin-top: 8px; }
.qa h2 { scroll-margin-top: 80px; }
.qa-answer { font-size: 17.5px; font-weight: 500; }
.src { font-size: 14px; color: var(--muted); }
.label-general { background: var(--alt); border: 1px dashed #D6D3D1; border-radius: 12px; padding: 10px 14px; font-size: 15px; }
table.compare { font-size: 14.5px; }
table.compare caption { text-align: left; font-size: 14px; color: var(--muted); padding-bottom: 8px; }
table.compare th[scope="row"] { font-size: 15px; color: var(--ink); white-space: nowrap; }
.cite { font-size: 12.5px; white-space: nowrap; }
h2[id], section[id] { scroll-margin-top: 80px; }
footer { border-top: 1px solid var(--line); margin-top: 56px; padding: 24px 0 44px; font-size: 14px; color: var(--muted); }
footer p { font-size: 14px; margin: 0 0 8px; }
footer a { color: var(--ink); font-weight: 600; }
@media (max-width: 600px) {
  .wrap { padding: 0 16px; }
  .nav { gap: 12px; }
  .nav .hide-sm { display: none; }
  .brand { font-size: 17px; }
  h2 { font-size: 21px; }
}
@media (max-width: 600px) {
  table.compare { display: block; overflow: visible; }
  table.compare thead { display: none; }
  table.compare caption { display: block; width: 100%; }
  table.compare tbody, table.compare tr, table.compare th[scope="row"], table.compare td { display: block; width: 100%; }
  table.compare tr { border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; margin-bottom: 12px; }
  table.compare th[scope="row"] { font-size: 17px; border: 0; padding: 0 0 6px; white-space: normal; }
  table.compare td { border: 0; padding: 6px 0; }
  table.compare td::before { content: attr(data-label); display: block; font-weight: 700; font-size: 13px; color: var(--muted); }
}
@media (max-width: 440px) {
  .site-header .wrap { gap: 8px; }
  .brand { font-size: 16px; gap: 7px; }
  .brand-mark { width: 28px; height: 28px; }
  .nav { gap: 10px; }
  .nav a { font-size: 15px; }
  .nav .cta { padding: 7px 11px; font-size: 14.5px; }
}
@media print {
  .site-header, .next, footer, .skip { display: none; }
}