@charset "UTF-8";
@import url("table-scroll.css");
@import url("logo.css");
:root {
  --navy: #191f4d;
  --ink: #171d3f;
  --blue: #135eab;
  --teal: #007c79;
  --pale: #f3f6fa;
  --line: #dce1e9;
  --muted: #566175;
  --white: #fff;
  --max: 1200px;
  font-family: "Noto Sans JP", "Yu Gothic", Meiryo, sans-serif;
  color: var(--ink);
  background: white;
  font-synthesis: none;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 110px;
}
body {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  -webkit-text-size-adjust: 100%;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input {
  font: inherit;
}
a,
button,
input {
  touch-action: manipulation;
}
a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid #0c8b9a;
  outline-offset: 5px;
}
p,
h1,
h2,
h3,
figure {
  margin: 0;
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}
h1,
h2,
h3 {
  font-weight: 750;
  line-height: 1.5;
  letter-spacing: 0.025em;
}
h2 {
  font-size: clamp(1.6rem, 2.6vw, 2.35rem);
}
h3 {
  font-size: 1.25rem;
}
.wrap {
  width: min(var(--max), calc(100% - 96px));
  margin-inline: auto;
}
.skip {
  position: fixed;
  left: 12px;
  top: -100px;
  background: var(--navy);
  color: white;
  padding: 12px;
  z-index: 999;
}
.skip:focus {
  top: 8px;
}
.eyebrow {
  display: block;
  font-size: 0.8rem;
  font-weight: 750;
  letter-spacing: 0.15em;
  color: var(--teal);
  line-height: 1.6;
}
.site-header {
  background: white;
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--line);
}
.topline {
  border-bottom: 1px solid #eceef3;
  font-size: 0.75rem;
  color: var(--muted);
}
.topline .wrap {
  display: flex;
  justify-content: space-between;
  padding: 5px 0;
}
.header-inner {
  min-height: 85px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.brand {
  display: flex;
  gap: 13px;
  align-items: center;
  font-weight: 750;
  font-size: 1.05rem;
  line-height: 1.5;
  white-space: nowrap;
}
.brand-symbol {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--navy);
  font-family: Arial, sans-serif;
  font-weight: 800;
  font-size: 2.85rem;
  line-height: 1;
  letter-spacing: -0.07em;
  border-bottom: 5px solid var(--teal);
  padding: 0 5px 2px 0;
}
.brand small {
  display: block;
  font-size: 0.64rem;
  letter-spacing: 0.13em;
  margin-top: 3px;
  font-weight: 600;
}
#global-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 0.85rem;
  font-weight: 700;
}
#global-nav a {
  padding: 7px 0;
}
#global-nav a:hover {
  color: var(--teal);
}
#global-nav .nav-cta {
  background: var(--navy);
  color: white;
  padding: 11px 20px;
  border: 1px solid var(--navy);
  border-radius: 3px;
}
#global-nav .nav-cta:hover {
  background: white;
  color: var(--navy);
}
.menu-toggle {
  display: none;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--navy);
  border: 1px solid var(--navy);
  border-radius: 3px;
  color: white;
  font-size: 0.95rem;
  font-weight: 700;
  padding: 16px 27px;
  min-height: 56px;
  text-align: center;
  transition:
    background 0.2s,
    color 0.2s;
}
.button:hover {
  background: white;
  color: var(--navy);
}
.text-link {
  font-weight: 700;
  font-size: 0.9rem;
  border-bottom: 1px solid;
  padding-bottom: 4px;
  display: inline-block;
}
.text-link:hover {
  color: var(--teal);
}
.hero {
  background: #f6f8fb;
  padding: 62px 0 45px;
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1.07fr;
  gap: 12px;
  align-items: center;
}
.hero-copy {
  position: relative;
  z-index: 1;
}
.hero .eyebrow {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  display: flex;
  align-items: center;
  gap: 17px;
  color: var(--navy);
  margin-bottom: 25px;
}
.edition {
  background: var(--navy);
  color: white;
  font-family: Arial, sans-serif;
  font-size: 1.1rem;
  letter-spacing: 0.15em;
  padding: 5px 13px;
}
.hero h1 {
  font-size: clamp(2.6rem, 4.1vw, 3.8rem);
  line-height: 1.5;
  letter-spacing: 0.055em;
  margin-bottom: 23px;
}
.accent {
  box-shadow: inset 0 -0.2em 0 #92dfd1;
}
.hero-title {
  font-size: 1.23rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 15px;
}
.hero-description {
  font-size: 0.95rem;
  line-height: 2;
  color: #48516c;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-top: 26px;
}
.hero-actions .button {
  font-size: 0.85rem;
  padding: 13px 22px;
}
.hero-actions .text-link {
  font-size: 0.82rem;
  white-space: nowrap;
}
.hero-meta {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
  font-size: 0.76rem;
  margin-top: 28px;
  color: var(--muted);
}
.hero-meta span + span {
  border-left: 1px solid #c7d0db;
  padding-left: 15px;
}
.hero-art {
  margin-right: -55px;
}
.hero-art img {
  width: 100%;
  mix-blend-mode: multiply;
}
.hero-art figcaption {
  text-align: right;
  font-size: 0.76rem;
  color: var(--muted);
  letter-spacing: 0.06em;
  padding-right: 55px;
  margin-top: 8px;
}
.mobile-only {
  display: none;
}
.start-section {
  background: var(--navy);
  color: white;
  padding: 58px 0 65px;
}
.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
  margin-bottom: 35px;
}
.section-heading h2 {
  margin-top: 10px;
}
.section-heading > p {
  font-size: 0.9rem;
  line-height: 1.9;
  color: var(--muted);
}
.inverse .eyebrow {
  color: #8addce;
}
.inverse > p {
  color: #d8dfeb;
}
.start-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 34px;
}
.start-image {
  background: white;
  overflow: hidden;
  border-radius: 2px;
}
.start-image img {
  aspect-ratio: 1.85;
  object-fit: cover;
  transition: transform 0.35s;
}
.start-card:hover img {
  transform: scale(1.035);
}
.start-meta {
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  display: block;
  margin: 20px 0 10px;
  color: #a9ddd8;
}
.start-card h3 {
  font-size: 1.27rem;
  line-height: 1.75;
}
.start-card p {
  font-size: 0.85rem;
  color: #d7ddec;
  margin-top: 10px;
}
.guide-section {
  padding-block: 92px;
}
.chapter-group {
  border-top: 1px solid var(--line);
  padding: 35px 0 10px;
  display: grid;
  grid-template-columns: 235px 1fr;
  gap: 50px;
}
.group-heading > span {
  font-family: Arial, sans-serif;
  font-size: 0.95rem;
  letter-spacing: 0.1em;
  color: var(--teal);
  display: block;
  margin-bottom: 14px;
}
.group-heading h3 {
  font-size: 1.35rem;
}
.group-heading small {
  display: block;
  font-size: 0.8rem;
  font-weight: 400;
  line-height: 1.9;
  color: var(--muted);
  margin-top: 13px;
}
.chapters-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 35px;
}
.chapter-card {
  display: flex;
  gap: 16px;
  padding: 0 0 30px;
  margin-bottom: 25px;
  border-bottom: 1px solid var(--line);
  transition: color 0.2s;
}
.chapter-card:hover {
  color: var(--blue);
}
.chapter-no {
  font-family: Arial, sans-serif;
  font-size: 1.7rem;
  line-height: 1.4;
  color: #8c9aaf;
  font-weight: 400;
}
.card-label {
  font-size: 0.75rem;
  color: var(--teal);
  font-weight: 700;
}
.chapter-card h3 {
  font-size: 1.02rem;
  line-height: 1.7;
  margin: 5px 0 10px;
}
.chapter-card p {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.9;
}
.read-label {
  font-size: 0.8rem;
  font-weight: 700;
  display: inline-block;
  margin-top: 12px;
  border-bottom: 1px solid #c9d0dd;
}
.tools-section {
  padding: 75px 0;
  background: var(--pale);
}
.resource-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.resource-card {
  border-top: 3px solid var(--navy);
  background: white;
  padding: 25px 26px 28px;
}
.resource-card:hover {
  box-shadow: 0 6px 22px #191f4d0b;
}
.resource-number {
  color: var(--teal);
  font-size: 0.85rem;
  font-family: Arial, sans-serif;
}
.resource-card h3 {
  margin: 10px 0 13px;
  font-size: 1.08rem;
}
.resource-card p {
  font-size: 0.87rem;
  color: var(--muted);
  margin-bottom: 18px;
}
.resource-card .text-link {
  font-size: 0.82rem;
}
.about-guide {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 100px;
  padding-block: 85px;
}
.about-guide h2 {
  margin-top: 14px;
}
.about-guide p {
  margin-bottom: 22px;
  font-size: 0.95rem;
}
.support {
  background: var(--navy);
  color: white;
  padding: 70px 0;
}
.support-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 90px;
}
.support .eyebrow {
  color: #94ded1;
}
.support h2 {
  margin: 12px 0 20px;
  font-size: 2rem;
  line-height: 1.6;
}
.support p {
  font-size: 0.9rem;
  color: #d9e0ed;
}
.support-actions {
  display: flex;
  flex-direction: column;
  gap: 15px;
}
.light {
  background: white;
  border-color: white;
  color: var(--navy);
}
.light:hover {
  background: #e7f2f5;
}
.outline-light {
  background: transparent;
  border-color: #a1abc3;
  color: white;
}
.outline-light:hover {
  background: white;
  color: var(--navy);
}
.support-actions small {
  font-size: 0.75rem;
  color: #c8d1e5;
  line-height: 1.8;
}
.footer {
  padding: 45px 0 20px;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  padding-bottom: 30px;
}
.footer nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 28px;
  font-size: 0.8rem;
}
.footer nav a:hover {
  text-decoration: underline;
}
.fine {
  font-size: 0.75rem;
  color: var(--muted);
  max-width: 860px;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--line);
  padding-top: 20px;
  margin-top: 30px;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.breadcrumb {
  font-size: 0.78rem;
  display: flex;
  gap: 14px;
  padding-block: 21px;
  color: var(--muted);
}
.breadcrumb a {
  text-decoration: underline;
}
.article-hero {
  background: var(--pale);
  padding: 35px 0 43px;
}
.article-hero-inner {
  display: grid;
  grid-template-columns: 1fr 290px;
  align-items: center;
  gap: 65px;
}
.article-hero h1 {
  font-size: clamp(1.9rem, 3vw, 2.6rem);
  line-height: 1.6;
  margin: 17px 0;
}
.article-hero .eyebrow {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.72rem;
}
.part-badge {
  display: inline-block;
  background: var(--navy);
  color: white;
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  padding: 4px 13px;
}
.article-lead {
  font-size: 0.96rem;
  color: #45516a;
  line-height: 2;
}
.article-meta {
  font-size: 0.74rem;
  display: flex;
  gap: 22px;
  margin-top: 20px;
  color: var(--muted);
}
.article-hero-image img {
  mix-blend-mode: multiply;
}
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 265px;
  gap: 70px;
  padding-top: 48px;
  padding-bottom: 80px;
}
.article-main {
  min-width: 0;
}
.key-points {
  border-left: 4px solid var(--teal);
  background: #f0f7f8;
  padding: 25px 30px;
  margin-bottom: 32px;
}
.key-points .eyebrow {
  font-size: 0.7rem;
}
.key-points h2 {
  font-size: 1.08rem;
  margin: 8px 0 15px;
}
.key-points ul {
  padding-left: 22px;
  margin: 0;
}
.key-points li {
  font-size: 0.95rem;
  padding: 3px 0;
}
.key-points li::marker {
  color: var(--teal);
}
.page-toc {
  border: 1px solid var(--line);
  padding: 23px 28px;
  margin: 0 0 35px;
}
.page-toc summary {
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 16px;
}
.page-toc summary::-webkit-details-marker {
  display: none;
}
.page-toc ol {
  margin: 18px 0 0;
  padding-left: 23px;
  font-size: 0.88rem;
  line-height: 1.9;
  columns: 2;
  column-gap: 35px;
}
.page-toc li {
  break-inside: avoid;
  margin-bottom: 10px;
}
.page-toc li::marker {
  color: #8390a5;
}
.page-toc a:hover {
  color: var(--blue);
  text-decoration: underline;
}
.prose {
  font-size: 1rem;
  line-height: 2.1;
  overflow-wrap: anywhere;
}
.prose h2 {
  font-size: 1.45rem;
  padding: 13px 0 13px 19px;
  border-left: 4px solid var(--navy);
  background: #f4f6f9;
  margin: 45px 0 24px;
  line-height: 1.7;
  scroll-margin-top: 125px;
}
.prose p {
  margin: 0 0 20px;
}
.prose p:first-child {
  margin-top: 0;
}
.prose a {
  color: var(--blue);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.body-list {
  padding-left: 26px;
  margin: 20px 0 32px;
}
.body-list li {
  padding: 6px 0;
}
.table-scroll {
  width: 100%;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  margin: 25px 0 35px;
  border: 1px solid var(--line);
}
table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.85rem;
  line-height: 1.8;
  min-width: 620px;
}
th,
td {
  padding: 14px 17px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
thead th {
  background: var(--navy);
  color: white;
  font-weight: 600;
  white-space: nowrap;
}
tbody th {
  background: #f4f6fa;
  font-weight: 600;
  min-width: 125px;
}
tbody tr:nth-child(even) td {
  background: #fafbfd;
}
td {
  min-width: 130px;
}
td a {
  overflow-wrap: anywhere;
}
td:last-child {
  min-width: 190px;
}
input[type="checkbox"] {
  width: 22px;
  height: 22px;
  accent-color: var(--teal);
  cursor: pointer;
  vertical-align: middle;
}
.memo-line {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 10px 0;
}
.memo-line > span:first-child {
  min-width: 155px;
}
.blank-line {
  border-bottom: 1px solid #9fa9bb;
  flex: 1;
  height: 30px;
}
.notice {
  padding: 23px 28px;
  border: 1px solid #afc5d2;
  margin: 25px 0;
  background: #f7fafc;
}
.notice p {
  font-size: 0.9rem;
  line-height: 1.9;
  margin-top: 9px;
}
.inline-resource {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border: 1px solid #a9bacd;
  padding: 23px 26px;
  margin: 25px 0;
  background: white;
}
.inline-resource strong {
  color: var(--blue);
}
.inline-resource span {
  font-size: 0.9rem;
}
.inline-resource small {
  font-size: 0.78rem;
  color: var(--muted);
}
.chapter-sidebar details {
  border-top: 3px solid var(--navy);
}
.chapter-sidebar summary {
  font-weight: 700;
  font-size: 0.95rem;
  padding: 17px 0;
  list-style: none;
}
.chapter-sidebar nav {
  display: flex;
  flex-direction: column;
}
.chapter-sidebar nav a {
  font-size: 0.82rem;
  display: flex;
  gap: 12px;
  padding: 12px 9px;
  border-bottom: 1px solid var(--line);
  line-height: 1.7;
}
.chapter-sidebar nav a span {
  font-family: Arial, sans-serif;
  color: #8490a4;
  font-size: 0.78rem;
  flex-shrink: 0;
  margin-top: 2px;
}
.chapter-sidebar nav a:hover {
  background: var(--pale);
}
.chapter-sidebar nav [aria-current="page"] {
  background: var(--navy);
  color: white;
}
.chapter-sidebar nav [aria-current="page"] span {
  color: #8ed8cf;
}
.sidebar-tool {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  padding: 20px 15px;
  margin-top: 20px;
  font-size: 0.84rem;
}
.sidebar-tool span {
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 5px;
}
.article-source {
  border-top: 1px solid var(--line);
  margin-top: 45px;
  padding-top: 24px;
  font-size: 0.85rem;
}
.article-source p {
  font-size: 0.8rem;
  color: var(--muted);
  margin: 8px 0;
}
.article-source a {
  color: var(--blue);
  text-decoration: underline;
}
.page-turn {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin: 35px 0;
  padding: 25px 0;
}
.page-turn div:last-child {
  text-align: right;
}
.page-turn a {
  font-weight: 700;
  font-size: 0.92rem;
  display: block;
}
.page-turn small {
  font-weight: 400;
  display: block;
  color: var(--muted);
  margin-bottom: 8px;
  font-size: 0.76rem;
}
.related {
  margin-top: 35px;
}
.related h2 {
  font-size: 1.2rem;
  margin-bottom: 17px;
}
.related a {
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 20px;
  padding: 15px 0;
  font-size: 0.9rem;
}
.related a span {
  font-size: 0.78rem;
  color: var(--teal);
  white-space: nowrap;
}
.faq-item {
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 130px;
}
.faq-item summary {
  padding: 23px 0;
  display: flex;
  align-items: baseline;
  gap: 15px;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.8;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.q-label {
  color: var(--teal);
  font-family: Arial, sans-serif;
  font-size: 1.1rem;
}
.plus {
  font-size: 1.5rem;
  margin-left: auto;
  flex-shrink: 0;
  color: var(--teal);
}
.faq-item[open] .plus {
  transform: rotate(45deg);
}
.faq-answer {
  padding: 0 20px 10px 36px;
  font-size: 0.95rem;
}
.error-page {
  padding-block: 100px;
}
.error-page h1 {
  margin: 25px 0;
}
.error-page .button {
  margin-top: 30px;
}
@media (min-width: 1500px) {
  .hero-art {
    margin-right: -75px;
  }
}
@media (max-width: 1150px) {
  .wrap {
    width: calc(100% - 64px);
  }
  #global-nav {
    gap: 16px;
    font-size: 0.78rem;
  }
  .brand {
    font-size: 0.91rem;
  }
  .brand small {
    font-size: 0.57rem;
  }
  .hero-actions {
    gap: 15px;
    flex-wrap: wrap;
  }
  .hero h1 {
    font-size: 3.1rem;
  }
  .hero-art {
    margin-right: -25px;
  }
  .chapter-group {
    grid-template-columns: 200px 1fr;
    gap: 30px;
  }
  .article-layout {
    gap: 40px;
    grid-template-columns: minmax(0, 1fr) 230px;
  }
  .article-hero-inner {
    gap: 35px;
    grid-template-columns: 1fr 230px;
  }
  .support-inner {
    gap: 40px;
  }
}
@media (max-width: 900px) {
  .header-inner {
    min-height: 72px;
  }
  .menu-toggle {
    display: block;
    color: var(--navy);
    background: white;
    border: 1px solid #a7afbf;
    border-radius: 3px;
    padding: 8px 12px;
    font-size: 0.8rem;
    cursor: pointer;
  }
  .header-inner {
    position: relative;
  }
  #global-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: -32px;
    right: -32px;
    background: white;
    padding: 22px 32px;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 8px 16px #19204d08;
  }
  #global-nav.is-open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    font-size: 0.95rem;
    gap: 10px;
  }
  #global-nav .nav-cta {
    text-align: center;
  }
  .hero {
    padding-top: 40px;
  }
  .hero-grid {
    grid-template-columns: 1fr 1fr;
  }
  .hero h1 {
    font-size: 2.5rem;
  }
  .hero-title {
    font-size: 1.05rem;
  }
  .hero-description {
    font-size: 0.88rem;
  }
  .hero-actions {
    gap: 18px;
  }
  .hero-meta {
    font-size: 0.7rem;
    gap: 10px;
  }
  .hero-art {
    margin-right: -30px;
  }
  .hero-meta span + span {
    padding-left: 10px;
  }
  .section-heading {
    align-items: start;
  }
  .chapter-group {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .group-heading {
    display: flex;
    gap: 25px;
    align-items: center;
  }
  .group-heading > span {
    margin: 0;
  }
  .group-heading small {
    display: inline-block;
    margin: 0 0 0 20px;
  }
  .start-grid {
    gap: 20px;
  }
  .start-card h3 {
    font-size: 1.05rem;
  }
  .resource-grid {
    grid-template-columns: 1fr 1fr;
  }
  .about-guide {
    gap: 40px;
    grid-template-columns: 1fr 1.4fr;
  }
  .article-layout {
    grid-template-columns: 1fr;
  }
  .chapter-sidebar {
    max-width: none;
  }
  .chapter-sidebar nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 25px;
  }
  .article-hero-inner {
    grid-template-columns: 1fr 200px;
    gap: 25px;
  }
  .article-hero h1 {
    font-size: 1.9rem;
  }
  .footer-top {
    flex-direction: column;
  }
  .footer nav {
    grid-template-columns: repeat(2, 1fr);
    max-width: 550px;
  }
  .support h2 {
    font-size: 1.7rem;
  }
  .support-actions .button {
    font-size: 0.85rem;
    padding: 14px;
  }
  .page-toc ol {
    columns: 2;
  }
}
@media (max-width: 600px) {
  .wrap {
    width: calc(100% - 40px);
  }
  .topline {
    font-size: 0.63rem;
  }
  .topline .wrap {
    padding-block: 5px;
  }
  .topline span {
    font-size: 0.61rem;
  }
  .header-inner {
    min-height: 70px;
    gap: 10px;
  }
  .brand {
    font-size: 0.79rem;
    gap: 9px;
  }
  .brand-symbol {
    font-size: 2.35rem;
    border-bottom-width: 4px;
  }
  .brand small {
    font-size: 0.52rem;
    letter-spacing: 0.06em;
  }
  .menu-toggle {
    font-size: 0.72rem;
    padding: 7px 9px;
  }
  #global-nav {
    left: -20px;
    right: -20px;
    padding: 18px 20px;
  }
  .hero {
    padding: 32px 0 24px;
  }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .hero .eyebrow {
    margin-bottom: 19px;
    font-size: 0.63rem;
    gap: 12px;
  }
  .edition {
    font-size: 0.95rem;
    padding: 4px 11px;
  }
  .hero h1 {
    font-size: 2.35rem;
    letter-spacing: 0.03em;
    line-height: 1.5;
    margin-bottom: 17px;
  }
  .hero-title {
    font-size: 1.07rem;
    line-height: 1.75;
  }
  .hero-description {
    font-size: 0.88rem;
    line-height: 1.9;
  }
  .hero-actions {
    margin-top: 21px;
    gap: 17px;
  }
  .hero-actions .button {
    font-size: 0.78rem;
    padding: 12px 14px;
    min-height: 49px;
  }
  .hero-actions .text-link {
    font-size: 0.73rem;
  }
  .hero-meta {
    margin-top: 22px;
    font-size: 0.66rem;
    gap: 9px;
  }
  .hero-meta span + span {
    padding-left: 9px;
  }
  .hero-art {
    margin: 0 -7px;
  }
  .hero-art img {
    max-height: 260px;
    object-fit: contain;
  }
  .hero-art figcaption {
    font-size: 0.67rem;
    padding-right: 8px;
    margin-top: 0;
  }
  .start-section {
    padding: 35px 0 40px;
  }
  .section-heading {
    flex-direction: column;
    gap: 13px;
    margin-bottom: 27px;
  }
  .section-heading h2 {
    font-size: 1.6rem;
    margin-top: 8px;
  }
  .section-heading > p {
    font-size: 0.84rem;
  }
  .start-grid {
    grid-template-columns: 1fr;
    gap: 29px;
  }
  .start-card {
    display: grid;
    grid-template-columns: 125px 1fr;
    column-gap: 18px;
    align-items: start;
  }
  .start-image {
    grid-row: 1/4;
  }
  .start-image img {
    aspect-ratio: 1/1;
    object-fit: cover;
  }
  .start-meta {
    font-size: 0.57rem;
    margin: 0 0 6px;
    letter-spacing: 0.06em;
  }
  .start-card h3 {
    font-size: 0.98rem;
    line-height: 1.7;
  }
  .start-card p {
    font-size: 0.75rem;
    margin-top: 6px;
  }
  .guide-section {
    padding-block: 45px;
  }
  .chapter-group {
    padding-top: 25px;
    gap: 25px;
  }
  .group-heading {
    gap: 15px;
  }
  .group-heading > span {
    font-size: 0.8rem;
    min-width: 55px;
  }
  .group-heading h3 {
    font-size: 1.15rem;
  }
  .group-heading small {
    display: block;
    font-size: 0.75rem;
    margin: 3px 0 0;
  }
  .chapters-grid {
    grid-template-columns: 1fr;
  }
  .chapter-card {
    gap: 18px;
    padding-bottom: 23px;
    margin-bottom: 24px;
  }
  .chapter-no {
    font-size: 1.8rem;
    min-width: 36px;
  }
  .chapter-card h3 {
    font-size: 1.05rem;
  }
  .chapter-card p {
    font-size: 0.88rem;
  }
  .card-label {
    font-size: 0.72rem;
  }
  .tools-section {
    padding: 42px 0;
  }
  .resource-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }
  .resource-card {
    padding: 21px 24px;
  }
  .resource-card h3 {
    font-size: 1.06rem;
  }
  .resource-card p {
    margin-bottom: 12px;
  }
  .resource-number {
    font-size: 0.75rem;
  }
  .about-guide {
    padding-block: 44px;
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .about-guide h2 {
    font-size: 1.7rem;
  }
  .about-guide p {
    font-size: 0.93rem;
  }
  .support {
    padding: 40px 0;
  }
  .support-inner {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .support h2 {
    font-size: 1.8rem;
    margin: 12px 0 18px;
  }
  .support p {
    font-size: 0.85rem;
  }
  .support-actions {
    gap: 12px;
  }
  .support-actions .button {
    font-size: 0.87rem;
  }
  .footer {
    padding-top: 30px;
  }
  .footer-top {
    gap: 25px;
    padding-bottom: 24px;
  }
  .footer nav {
    font-size: 0.73rem;
    gap: 12px 14px;
  }
  .fine {
    font-size: 0.72rem;
  }
  .footer-bottom {
    font-size: 0.62rem;
    flex-direction: column;
    gap: 7px;
  }
  .breadcrumb {
    font-size: 0.7rem;
    padding-block: 15px;
  }
  .article-hero {
    padding: 28px 0;
  }
  .article-hero-inner {
    grid-template-columns: 1fr;
    gap: 15px;
  }
  .article-hero-image {
    max-width: 230px;
    margin: auto;
  }
  .article-hero-image img {
    max-height: 135px;
    object-fit: contain;
  }
  .article-hero h1 {
    font-size: 1.8rem;
    margin: 17px 0 15px;
  }
  .article-hero .eyebrow {
    font-size: 0.65rem;
    gap: 12px;
  }
  .article-lead {
    font-size: 0.93rem;
  }
  .article-meta {
    font-size: 0.69rem;
    flex-wrap: wrap;
    gap: 6px 18px;
    margin-top: 17px;
  }
  .article-layout {
    padding-top: 28px;
    gap: 40px;
    padding-bottom: 45px;
  }
  .key-points {
    padding: 20px 21px;
    margin-bottom: 25px;
  }
  .key-points h2 {
    font-size: 1.05rem;
  }
  .key-points li {
    font-size: 0.91rem;
    padding: 5px 0;
  }
  .page-toc {
    padding: 20px;
    margin-bottom: 28px;
  }
  .page-toc ol {
    columns: 1;
    font-size: 0.85rem;
    padding-left: 21px;
  }
  .page-toc summary {
    font-size: 0.94rem;
  }
  .prose {
    font-size: 1rem;
    line-height: 2;
  }
  .prose h2 {
    font-size: 1.22rem;
    padding: 12px 14px;
    margin-top: 35px;
  }
  .prose p {
    margin-bottom: 20px;
  }
  .prose table {
    font-size: 0.81rem;
  }
  .table-scroll {
    margin-block: 22px;
  }
  .body-list {
    padding-left: 22px;
  }
  .article-source {
    margin-top: 30px;
    font-size: 0.85rem;
  }
  .page-turn {
    gap: 20px;
    margin-block: 28px;
    padding-block: 23px;
  }
  .page-turn a {
    font-size: 0.86rem;
  }
  .related a {
    font-size: 0.86rem;
    gap: 13px;
  }
  .chapter-sidebar nav {
    grid-template-columns: 1fr;
  }
  .chapter-sidebar nav a {
    font-size: 0.87rem;
    padding: 13px 10px;
  }
  .faq-item summary {
    font-size: 0.95rem;
    gap: 10px;
    padding-block: 21px;
  }
  .faq-answer {
    padding-left: 22px;
    padding-right: 5px;
    font-size: 0.95rem;
  }
  .inline-resource {
    padding: 20px;
  }
  .inline-resource span {
    font-size: 0.85rem;
  }
  .memo-line > span:first-child {
    min-width: 145px;
    font-size: 0.9rem;
  }
  .notice {
    padding: 20px;
  }
  .error-page {
    padding-block: 60px;
  }
  .error-page h1 {
    font-size: 1.8rem;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  * {
    transition: none !important;
    animation: none !important;
  }
}
@media print {
  .site-header,
  .support,
  .footer,
  .chapter-sidebar,
  .page-turn,
  .related,
  .page-toc,
  .hero-actions,
  .menu-toggle,
  .breadcrumb {
    display: none !important;
  }
  .wrap {
    width: 100%;
    max-width: none;
  }
  .article-layout {
    display: block;
    padding: 0;
  }
  .article-hero {
    background: none;
    padding: 0 0 20px;
  }
  .article-hero-inner {
    display: block;
  }
  .article-hero-image {
    display: none;
  }
  .prose {
    font-size: 10pt;
    line-height: 1.6;
  }
  .prose h2 {
    break-after: avoid;
    font-size: 15pt;
  }
  .table-scroll {
    overflow: visible;
  }
  table {
    min-width: 0;
    font-size: 9pt;
  }
  th,
  td {
    min-width: 0 !important;
    padding: 8px;
  }
  .faq-item .faq-answer {
    display: block;
  }
  a {
    color: inherit;
  }
  h1 {
    font-size: 24pt;
  }
  .key-points {
    break-inside: avoid;
  }
  .article-source {
    font-size: 9pt;
  }
}