:root {
  --paper: #F6F8F1;
  --paper-deep: #EEF3EA;
  --ink: #17251D;
  --green: #3D8B68;
  --green-deep: #246044;
  --green-pale: #DDEBDD;
  --muted: #718078;
  --line: #D7E2D7;
  --serif: "Iowan Old Style", "Baskerville", "Times New Roman", serif;
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: var(--sans); line-height: 1.8; -webkit-font-smoothing: antialiased; }
::selection { color: var(--paper); background: var(--green-deep); }
a { color: inherit; text-decoration: none; }
.container { width: min(calc(100% - 48px), var(--max)); margin: 0 auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.site-header { border-bottom: 1px solid var(--line); background: var(--paper); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; gap: 18px; min-height: 76px; }
.brand { display: inline-flex; min-width: 0; align-items: center; gap: 12px; font-size: 14px; font-weight: 700; letter-spacing: .08em; }
.brand-mark { display: grid; place-items: center; width: 38px; height: 38px; border: 1px solid var(--green-deep); border-radius: 50%; color: var(--green-deep); }
.brand-mark svg { width: 29px; height: 29px; }
.brand-copy { white-space: nowrap; }
.brand-copy span { color: var(--muted); font-size: 11px; font-weight: 500; letter-spacing: .13em; }
.page-links { display: flex; min-width: 0; align-items: center; gap: 24px; }
.page-links a { color: var(--muted); font-size: 13px; }
.page-links a:hover, .page-links a:focus-visible { color: var(--green-deep); }
.page-links .back-link { color: var(--green-deep); font-weight: 700; }

.list-header { padding: 104px 0 75px; border-bottom: 1px solid var(--line); }
.list-header-inner { width: min(calc(100% - 48px), 820px); margin: 0 auto; }
.list-kicker { margin: 0 0 19px; color: var(--green-deep); font-size: 11px; font-weight: 800; letter-spacing: .15em; text-transform: uppercase; }
.list-title { margin: 0 0 17px; font-family: var(--serif); font-size: clamp(52px, 8vw, 90px); font-weight: 400; letter-spacing: -.065em; line-height: .98; }
.list-description { max-width: 650px; margin: 0; color: #4D5F54; font-size: 16px; line-height: 2; }

.content-list-section { padding: 68px 0 108px; }
.content-list { border-top: 1px solid var(--line); }
.content-row { display: grid; grid-template-columns: 70px minmax(0, 1fr) minmax(165px, .3fr); gap: 25px; align-items: start; padding: 27px 0 29px; border-bottom: 1px solid var(--line); transition: padding-left .22s ease; }
.content-row > * { min-width: 0; }
.content-row:hover { padding-left: 12px; }
.content-number { color: var(--green-deep); font-family: var(--serif); font-size: 25px; line-height: 1.25; }
.content-row h2 { margin: 0 0 8px; overflow-wrap: anywhere; font-family: var(--serif); font-size: clamp(25px, 3.5vw, 40px); font-weight: 400; letter-spacing: -.045em; line-height: 1.16; }
.content-summary { max-width: 650px; margin: 0; overflow-wrap: anywhere; color: var(--muted); font-size: 14px; line-height: 1.8; }
.content-meta { display: grid; min-width: 0; justify-items: end; gap: 6px; color: var(--muted); font-size: 11px; line-height: 1.5; text-align: right; }
.content-meta > span { min-width: 0; overflow-wrap: anywhere; }
.content-type { color: var(--green-deep); font-size: 10px; font-weight: 800; letter-spacing: .1em; }
.content-category { color: var(--ink); font-size: 11px; }
.content-tags { max-width: 175px; color: var(--green); font-size: 10px; line-height: 1.5; }
.content-empty { padding: 27px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; }
.series-link { display: inline-flex; margin-top: 35px; color: var(--green-deep); font-size: 12px; font-weight: 800; }
.series-link:hover { color: var(--green); }

.site-footer { padding: 27px 0 35px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.footer-inner p { margin: 0; }
.footer-inner a:hover { color: var(--green-deep); }

@media (max-width: 650px) {
  .container, .list-header-inner { width: min(calc(100% - 32px), var(--max)); }
  .nav-wrap { min-height: 68px; }
  .brand { gap: 9px; font-size: 13px; }
  .brand-mark { width: 34px; height: 34px; }
  .brand-mark svg { width: 26px; height: 26px; }
  .brand-copy span { font-size: 9px; }
  .page-links { gap: 12px; }
  .page-links a { font-size: 11px; }
  .page-links a:nth-child(-n+2) { display: none; }
  .list-header { padding: 68px 0 54px; }
  .list-title { font-size: clamp(50px, 16vw, 70px); }
  .list-description { font-size: 15px; }
  .content-list-section { padding: 45px 0 76px; }
  .content-row { grid-template-columns: 48px minmax(0, 1fr); gap: 14px; padding: 22px 0 25px; }
  .content-row h2 { font-size: 26px; }
  .content-summary { font-size: 13px; }
  .content-meta { grid-column: 2; display: flex; flex-wrap: wrap; align-items: center; justify-items: start; gap: 6px 12px; width: 100%; text-align: left; }
  .content-tags { max-width: 100%; white-space: normal; }
  .footer-inner { display: block; }
  .footer-inner a { display: inline-block; margin-top: 10px; }
}

@media (max-width: 420px) {
  .brand-copy span { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}