:root {
  --ink: #202927;
  --muted: #5a6863;
  --green: #0d625d;
  --green-dark: #084b47;
  --accent: #f3cf69;
  --line: #dce3df;
  --surface: #f4f7f5;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; }
body { margin: 0; background: #fff; color: var(--ink); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; font-size: 16px; line-height: 1.75; letter-spacing: 0; overflow-wrap: anywhere; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
a:focus-visible { outline: 3px solid #c48e19; outline-offset: 5px; }
figure, blockquote, p { margin: 0; }
h1, h2, h3 { margin: 0; line-height: 1.35; letter-spacing: 0; }
.wrap { width: min(1180px, calc(100% - 64px)); margin-inline: auto; }
.skip-link { position: absolute; top: 12px; left: -9999px; padding: 10px 18px; background: #fff; color: var(--ink); z-index: 10; }
.skip-link:focus { left: 12px; }
.site-header { border-bottom: 1px solid var(--line); background: #fff; }
.header-inner { min-height: 100px; display: flex; align-items: center; gap: 34px; }
.brand { display: inline-flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand img { width: 52px; height: 52px; object-fit: contain; }
.brand strong { display: block; font-size: 23px; line-height: 1.35; }
.brand-en { display: block; font-size: 10px; color: var(--muted); line-height: 1.6; margin-top: 3px; }
.site-nav { display: flex; align-items: center; gap: 30px; margin-left: auto; }
.site-nav a { font-size: 14px; padding: 10px 0; border-bottom: 2px solid transparent; white-space: nowrap; }
.site-nav a:hover { color: var(--green); border-bottom-color: var(--green); }
.official-mark { display: flex; align-items: center; gap: 7px; font-size: 12px; color: var(--green); white-space: nowrap; }
.official-mark span { width: 6px; height: 6px; background: var(--green); border-radius: 50%; }
.hero { position: relative; isolation: isolate; background: #172a27; color: #fff; }
.hero-art { position: absolute; z-index: -2; inset: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); overflow: hidden; }
.hero-art img { width: 100%; height: 100%; min-height: 0; object-fit: cover; object-position: center 34%; }
.hero::after { content: ""; position: absolute; z-index: -1; inset: 0; background: rgb(9 24 21 / 76%); }
.hero-content { padding-block: 58px 38px; }
.eyebrow { font-size: 11px; font-weight: 700; line-height: 1.7; color: var(--green); }
.hero .eyebrow { color: var(--accent); margin-bottom: 17px; }
.hero h1 { font-size: 54px; line-height: 1.2; font-weight: 750; }
.hero-subtitle { font-size: 27px; margin-top: 12px; font-weight: 550; }
.hero-description { max-width: 680px; margin-top: 19px; color: #e2e9e6; font-size: 15px; line-height: 1.9; }
.primary-link { display: inline-flex; align-items: center; justify-content: space-between; gap: 30px; min-height: 46px; padding: 10px 20px; margin-top: 26px; background: var(--accent); color: #223029; border-radius: 4px; font-size: 14px; font-weight: 650; }
.primary-link span { font-size: 20px; line-height: 1; }
.primary-link:hover { background: #ffe19c; }
.keywords { max-width: 1050px; margin-top: 28px; padding-top: 20px; border-top: 1px solid rgb(255 255 255 / 20%); color: #d7dfdb; font-size: 11px; line-height: 1.9; }
.statement { background: #eff5f2; border-bottom: 1px solid var(--line); }
.statement-inner { display: flex; align-items: center; justify-content: space-between; gap: 28px; padding-block: 30px; }
.statement-title { font-size: 31px; font-weight: 700; margin-top: 6px; line-height: 1.4; }
.statement-title span { color: var(--green); }
.statement-note { text-align: right; font-size: 13px; }
.statement-note span { color: var(--muted); font-size: 11px; }
.section { padding-block: 64px; scroll-margin-top: 16px; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 32px; }
.section-head h2 { margin-top: 8px; font-size: 30px; }
.section-description { color: var(--muted); margin-top: 8px; font-size: 14px; }
.section-index { flex-shrink: 0; font-size: 11px; color: var(--muted); padding-bottom: 3px; }
.feature { display: grid; grid-template-columns: 330px minmax(0, 1fr); gap: 68px; align-items: center; }
.feature-poster { overflow: hidden; border-radius: 6px; background: #e9efeb; }
.feature-poster img { width: 100%; height: auto; aspect-ratio: 2 / 3; object-fit: contain; }
.labels { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: 12px; color: var(--green); }
.labels span + span { position: relative; }
.labels span + span::before { content: "/"; color: #b7c6bd; position: absolute; left: -12px; }
.feature h3 { font-size: 40px; margin-top: 19px; }
.feature-lead { font-size: 19px; font-weight: 650; margin-top: 14px; }
.feature-copy > p:not(.feature-lead) { margin-top: 20px; color: var(--muted); font-size: 15px; line-height: 2; }
.feature blockquote { border-left: 3px solid var(--green); padding: 14px 0 14px 20px; margin-top: 28px; color: var(--muted); font-size: 14px; }
.text-link { display: inline-flex; align-items: center; gap: 24px; margin-top: 25px; color: var(--green); font-size: 14px; font-weight: 650; min-height: 36px; }
.text-link:hover { text-decoration: underline; text-underline-offset: 5px; }
.recommendations-section { background: var(--surface); border-block: 1px solid var(--line); }
.cards { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 18px; }
.card { display: flex; flex-direction: column; min-width: 0; background: #fff; border: 1px solid var(--line); border-radius: 6px; overflow: hidden; }
.card > img { width: 100%; height: auto; aspect-ratio: 2 / 3; object-fit: contain; background: #e9efeb; }
.card-body { padding: 17px 16px 16px; display: flex; flex: 1; flex-direction: column; }
.category { color: var(--green); font-size: 11px; font-weight: 650; }
.card h3 { font-size: 17px; margin-top: 7px; min-height: 46px; }
.card-body > p:not(.meta) { color: var(--muted); font-size: 12px; line-height: 1.9; margin-top: 10px; margin-bottom: 18px; }
.card .meta { border-top: 1px solid var(--line); padding-top: 12px; margin-top: auto; font-size: 11px; line-height: 1.9; color: var(--muted); }
.fine { color: var(--muted); font-size: 12px; line-height: 1.85; }
.content-note { margin-top: 23px; }
.guide-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px; }
.guide-item { border-top: 2px solid var(--green); padding-top: 20px; position: relative; }
.guide-number { display: block; color: #59776b; font-size: 28px; line-height: 1.3; margin-bottom: 19px; }
.guide-item h3 { font-size: 19px; margin-top: 10px; }
.guide-item > p:last-child { margin-top: 14px; color: var(--muted); font-size: 14px; }
.notice-section { background: #f7f8f7; border-top: 1px solid var(--line); }
.notice-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px 48px; }
.notice-item { padding-top: 21px; border-top: 1px solid #cfd9d3; }
.notice-item h3 { font-size: 17px; }
.notice-item p { margin-top: 11px; font-size: 14px; color: var(--muted); }
.site-footer { background: #1a2521; color: #f4f6f4; padding-block: 34px; }
.footer-inner { display: flex; gap: 32px; align-items: center; }
.footer-brand img { width: 45px; height: 45px; }
.footer-brand strong { font-size: 20px; }
.footer-brand .brand-en { color: #b9c8bf; }
.footer-copy { margin-left: auto; font-size: 12px; text-align: right; }
.footer-copy .fine { color: #b9c8bf; margin-top: 5px; }
.footer-copy a:hover { text-decoration: underline; }
.back-top { display: grid; place-items: center; width: 40px; height: 40px; flex-shrink: 0; border: 1px solid #627267; border-radius: 4px; color: #fff; font-size: 24px; }
.back-top:hover { border-color: var(--accent); color: var(--accent); }
.error-page { min-height: 100svh; display: flex; flex-direction: column; }
.error-main { flex: 1; display: flex; align-items: center; padding-block: 80px; }
.error-number { color: var(--green); font-size: 72px; line-height: 1.2; font-weight: 750; }
.error-main h1 { font-size: 30px; margin-top: 16px; }
.error-main p { color: var(--muted); margin-top: 14px; }

@media (min-width: 1680px) {
  .hero-content { padding-block: 72px 46px; }
}
@media (max-width: 1080px) {
  .header-inner { gap: 24px; }
  .site-nav { gap: 20px; }
  .official-mark { display: none; }
  .cards { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
  .card h3 { min-height: 0; }
  .card-body > p:not(.meta) { font-size: 13px; }
  .feature { grid-template-columns: 300px minmax(0, 1fr); gap: 38px; }
  .feature h3 { font-size: 34px; }
  .feature-lead { font-size: 17px; }
}
@media (max-width: 760px) {
  .wrap { width: calc(100% - 40px); }
  .header-inner { flex-wrap: wrap; gap: 0; padding-top: 16px; padding-bottom: 0; }
  .brand img { width: 43px; height: 43px; }
  .brand strong { font-size: 21px; }
  .official-mark { display: flex; margin-left: auto; }
  .site-nav { width: 100%; margin-top: 12px; justify-content: space-between; gap: 12px; order: 3; }
  .site-nav a { font-size: 12px; padding-block: 10px 12px; }
  .hero-content { padding-block: 42px 28px; }
  .hero-art { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .hero-art img:nth-child(n + 4) { display: none; }
  .hero h1 { font-size: 39px; }
  .hero-subtitle { font-size: 22px; }
  .hero-description { font-size: 14px; line-height: 1.95; }
  .keywords { font-size: 10px; margin-top: 25px; padding-top: 18px; }
  .statement-inner { display: block; padding-block: 25px; }
  .statement-title { font-size: 26px; }
  .statement-note { text-align: left; margin-top: 12px; font-size: 12px; }
  .section { padding-block: 42px; }
  .section-head { margin-bottom: 24px; align-items: flex-start; }
  .section-head h2 { font-size: 25px; }
  .section-index { display: none; }
  .feature { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .feature-poster { width: min(330px, 100%); margin-inline: auto; }
  .feature h3 { font-size: 31px; margin-top: 13px; }
  .feature-copy > p:not(.feature-lead) { font-size: 14px; }
  .feature blockquote { margin-top: 20px; padding-left: 16px; }
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 14px; }
  .card-body { padding: 14px 12px; }
  .card h3 { font-size: 16px; }
  .card-body > p:not(.meta) { font-size: 12px; }
  .guide-grid { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .guide-number { margin-bottom: 12px; font-size: 23px; }
  .guide-item h3 { font-size: 18px; }
  .notice-grid { grid-template-columns: minmax(0, 1fr); gap: 22px; }
  .footer-inner { flex-wrap: wrap; gap: 20px; }
  .footer-copy { margin-left: 0; text-align: left; width: calc(100% - 60px); order: 3; }
  .back-top { margin-left: auto; }
  .error-main h1 { font-size: 25px; }
}
@media (max-width: 360px) {
  .wrap { width: calc(100% - 32px); }
  .hero h1 { font-size: 34px; }
  .hero-subtitle { font-size: 20px; }
  .site-nav { gap: 8px; }
  .official-mark { font-size: 11px; }
  .card-body { padding: 12px 10px; }
  .card h3 { font-size: 15px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}