:root {
  color: #1f241f;
  background: #f4f6f1;
  font-family: Inter, "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  font-synthesis: none;
  --ink: #0b0e0b;
  --surface: #fff;
  --line: #dce1d8;
  --muted: #687068;
  --green: #a8ed31;
  --green-dark: #376900;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; }
a { color: inherit; text-decoration: none; }

.site-header {
  min-height: 72px;
  padding: 0 max(24px, calc((100vw - 1180px) / 2));
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 32px;
  border-bottom: 1px solid #242924;
  background: var(--ink);
  color: #fff;
}

.brand { display: inline-flex; align-items: center; gap: 10px; justify-self: start; }
.brand > span { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 6px; background: var(--green); color: var(--ink); font-size: 11px; font-weight: 800; }
.brand strong { display: grid; gap: 1px; font-size: 14px; }
.brand small { color: #858d85; font-size: 9px; font-weight: 500; }
.site-header nav { display: flex; align-items: center; gap: 28px; color: #bbc2bb; font-size: 13px; }
.site-header nav a:hover { color: var(--green); }
.header-cta { min-height: 38px; padding: 0 17px; display: inline-flex; align-items: center; justify-self: end; border-radius: 5px; background: var(--green); color: var(--ink); font-size: 12px; font-weight: 700; }

main { width: min(100% - 48px, 1180px); margin: 0 auto; }
.breadcrumb { min-height: 52px; display: flex; align-items: center; gap: 9px; color: #818981; font-size: 11px; }
.breadcrumb a:hover { color: var(--green-dark); }

.article-hero {
  min-height: 470px;
  padding: 72px;
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, .65fr);
  gap: 70px;
  align-items: center;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
}

.kicker { margin: 0 0 18px; color: var(--green-dark); font-family: ui-monospace, Consolas, monospace; font-size: 10px; font-weight: 800; letter-spacing: 0; }
.article-hero .kicker { color: var(--green); }
.article-hero h1 { max-width: 760px; margin: 0; font-size: clamp(38px, 5vw, 68px); line-height: 1.08; letter-spacing: 0; }
.lead { max-width: 720px; margin: 26px 0 0; color: #b4bbb4; font-size: 17px; line-height: 1.8; }
.hero-actions { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 12px; }
.hero-actions a { min-height: 46px; padding: 0 20px; display: inline-flex; align-items: center; border: 1px solid #444a44; border-radius: 5px; color: #d7ddd7; font-size: 13px; font-weight: 700; }
.hero-actions .primary { border-color: var(--green); background: var(--green); color: var(--ink); }

.evidence-panel { border-top: 1px solid #343934; }
.evidence-panel div { min-height: 96px; padding: 18px 4px; display: grid; grid-template-columns: 1fr auto; align-content: center; gap: 5px 20px; border-bottom: 1px solid #343934; }
.evidence-panel small { color: #737b73; font-size: 9px; font-weight: 700; }
.evidence-panel strong { grid-row: span 2; color: var(--green); font-size: 30px; }
.evidence-panel span { color: #d2d8d2; font-size: 12px; }

.article-layout { padding: 76px 0; display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 80px; align-items: start; }
.content-section { padding: 0 0 52px; margin-bottom: 52px; display: grid; grid-template-columns: 48px minmax(0, 1fr); gap: 22px; border-bottom: 1px solid var(--line); }
.section-number { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 5px; background: var(--ink); color: var(--green); font-family: ui-monospace, Consolas, monospace; font-size: 10px; font-weight: 700; }
.content-section h2, .faq-section h2, .article-aside h2, .bottom-cta h2 { margin: 1px 0 20px; color: var(--ink); font-size: 27px; line-height: 1.25; letter-spacing: 0; }
.content-section p, .content-section li, .faq-section p, .article-aside p { color: #535b53; font-size: 15px; line-height: 1.85; }
.content-section p { margin: 0 0 16px; }
.content-section ul { margin: 20px 0 0; padding-left: 20px; }
.content-section li { margin-bottom: 10px; padding-left: 4px; }
.source-list { padding: 0 !important; list-style: none; }
.source-list li { padding: 0; border-top: 1px solid var(--line); }
.source-list li:last-child { border-bottom: 1px solid var(--line); }
.source-list a { min-height: 54px; display: flex; align-items: center; justify-content: space-between; gap: 18px; color: #263126; font-weight: 650; }
.source-list a:hover { color: var(--green-dark); }

.article-aside { position: sticky; top: 24px; padding: 26px; border: 1px solid #252a25; border-radius: 7px; background: var(--ink); color: #fff; }
.article-aside h2 { color: #fff; font-size: 20px; }
.article-aside p { color: #9fa69f; font-size: 13px; }
.article-aside a { margin-top: 18px; display: inline-flex; color: var(--green); font-size: 12px; font-weight: 700; }

.faq-section { padding-bottom: 20px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { padding: 21px 4px; cursor: pointer; color: var(--ink); font-size: 15px; font-weight: 700; }
.faq-list details p { margin: 0; padding: 0 4px 22px; }

.bottom-cta { margin-bottom: 76px; padding: 58px; border-radius: 8px; background: #dfffa9; }
.bottom-cta h2 { margin-bottom: 12px; font-size: 34px; }
.bottom-cta > p:not(.kicker) { max-width: 760px; color: #455045; line-height: 1.75; }
.bottom-cta a { min-height: 44px; margin-top: 18px; padding: 0 18px; display: inline-flex; align-items: center; border-radius: 5px; background: var(--ink); color: #fff; font-size: 13px; font-weight: 700; }

footer { min-height: 110px; padding: 30px max(24px, calc((100vw - 1180px) / 2)); display: flex; align-items: center; justify-content: space-between; gap: 30px; border-top: 1px solid #292e29; background: var(--ink); color: #fff; }
footer > div { display: grid; gap: 5px; }
footer strong { font-size: 14px; }
footer span, footer nav { color: #858d85; font-size: 10px; }
footer nav { display: flex; flex-wrap: wrap; gap: 20px; }
footer nav a:hover { color: var(--green); }

@media (max-width: 860px) {
  .site-header { grid-template-columns: 1fr auto; }
  .site-header nav { display: none; }
  .article-hero { padding: 50px 38px; grid-template-columns: 1fr; gap: 46px; }
  .evidence-panel { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .evidence-panel div { padding: 14px; border-right: 1px solid #343934; }
  .evidence-panel div:last-child { border-right: 0; }
  .evidence-panel strong { grid-row: auto; font-size: 22px; }
  .article-layout { grid-template-columns: 1fr; gap: 34px; }
  .article-aside { position: static; }
}

@media (max-width: 600px) {
  .site-header { min-height: 62px; padding: 0 15px; gap: 12px; }
  .brand small { display: none; }
  .header-cta { min-height: 36px; padding: 0 13px; }
  main { width: min(100% - 28px, 1180px); }
  .breadcrumb { overflow: hidden; white-space: nowrap; }
  .article-hero { min-height: 0; padding: 40px 22px; }
  .article-hero h1 { font-size: 35px; }
  .lead { font-size: 14px; }
  .hero-actions { flex-direction: column; }
  .hero-actions a { justify-content: center; }
  .evidence-panel { grid-template-columns: 1fr; }
  .evidence-panel div { border-right: 0; }
  .article-layout { padding: 48px 0; }
  .content-section { grid-template-columns: 1fr; gap: 16px; padding-bottom: 38px; margin-bottom: 38px; }
  .content-section h2, .faq-section h2 { font-size: 23px; }
  .bottom-cta { margin-bottom: 48px; padding: 34px 24px; }
  .bottom-cta h2 { font-size: 27px; }
  footer { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }