:root {
  color-scheme: light;
  --text: #1f2933;
  --muted: #5d6977;
  --line: #dfe7ef;
  --soft: #f5f8fb;
  --accent: #196b69;
  --accent-dark: #124f4d;
  --paper: #ffffff;
  --warn: #fff7e6;
}

* { box-sizing: border-box; }
html { font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.75; color: var(--text); background: var(--paper); }
body { margin: 0; font-size: 16px; }
a { color: var(--accent-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
.site-header { position: sticky; top: 0; z-index: 10; display: flex; justify-content: space-between; gap: 24px; align-items: center; padding: 16px clamp(16px, 4vw, 48px); background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); }
.brand { display: grid; gap: 0; color: var(--text); min-width: 190px; }
.brand strong { font-size: 19px; line-height: 1.2; }
.brand span { font-size: 12px; color: var(--muted); }
.global-nav { display: flex; gap: 8px 18px; flex-wrap: wrap; justify-content: flex-end; font-size: 14px; }
.global-nav a { font-weight: 700; line-height: 1.35; }
.hero { background: linear-gradient(180deg, #edf6f5 0%, #ffffff 100%); border-bottom: 1px solid var(--line); }
.hero-inner { max-width: 1040px; margin: 0 auto; padding: clamp(30px, 6vw, 58px) clamp(18px, 4vw, 40px); }
.eyebrow { margin: 0 0 12px; color: var(--accent-dark); font-weight: 700; font-size: 14px; }
h1 { margin: 0; font-size: clamp(29px, 5vw, 48px); line-height: 1.24; letter-spacing: 0; max-width: 920px; }
.lead { max-width: 820px; margin: 20px 0 0; font-size: 18px; color: #334155; }
.hero-beginner-link { max-width: 820px; margin: 22px 0 0; }
.hero-beginner-link a { display: grid; gap: 5px; padding: 16px 18px; border: 1px solid #b9d7d5; border-radius: 8px; background: #ffffff; color: var(--text); box-shadow: 0 8px 22px rgba(18, 79, 77, .08); }
.hero-beginner-link strong { color: var(--accent-dark); font-size: 14px; }
.hero-beginner-link span { font-weight: 800; font-size: 18px; line-height: 1.45; }
.hero-beginner-link small { color: var(--muted); font-size: 14px; line-height: 1.65; }
.notice { max-width: 820px; margin: 20px 0 0; padding: 14px 16px; border: 1px solid #f1d790; background: var(--warn); border-radius: 8px; color: #594214; font-size: 14px; }
.content-wrap { max-width: 960px; margin: 0 auto; padding: 34px clamp(18px, 4vw, 40px) 64px; }
.article-section { padding: 28px 0; border-bottom: 1px solid var(--line); }
.article-section:last-child { border-bottom: 0; }
h2 { margin: 0 0 14px; font-size: clamp(22px, 3vw, 30px); line-height: 1.35; letter-spacing: 0; }
p { margin: 0 0 16px; }
p:last-child { margin-bottom: 0; }
.check-list { margin: 16px 0 0; padding-left: 1.25em; }
.check-list li { margin: 7px 0; }
pre { margin: 16px 0; padding: 18px; overflow-x: auto; background: #102a43; color: #eff6ff; border-radius: 8px; line-height: 1.65; font-size: 14px; }
pre code { white-space: pre-wrap; overflow-wrap: anywhere; word-break: break-word; }
.card-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 18px; }
.guide-card { display: grid; gap: 8px; min-height: 132px; padding: 18px; border: 1px solid var(--line); border-radius: 8px; background: var(--soft); color: var(--text); }
.guide-card span { font-weight: 800; line-height: 1.45; }
.guide-card small { color: var(--muted); font-size: 14px; line-height: 1.7; }
.site-footer { display: flex; justify-content: space-between; gap: 24px; padding: 30px clamp(18px, 4vw, 48px); background: #1f2933; color: #f8fafc; }
.site-footer p { color: #d9e2ec; margin: 6px 0 0; font-size: 14px; }
.site-footer nav { display: flex; gap: 14px 20px; flex-wrap: wrap; justify-content: flex-end; align-content: start; }
.site-footer a { color: #f8fafc; }

/* hero-firstview-characters:start */
.hero-firstview-characters {
  display: grid;
  gap: 12px;
  align-items: center;
  max-width: 300px;
  margin: 0;
  padding: 14px 16px;
  border: 1px solid #c9e5e2;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 10px 24px rgba(18, 79, 77, 0.08);
}
.hero-character-pair {
  display: flex;
  gap: 8px;
  justify-content: center;
  align-items: flex-end;
  overflow: visible;
}
.hero-character-pair img {
  display: block;
  width: auto;
  max-width: 88px;
  max-height: 148px;
  height: auto;
  object-fit: contain;
}
.hero-character-lines {
  display: grid;
  gap: 8px;
  min-width: 0;
}
.hero-character-lines p {
  margin: 0;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  font-size: 14px;
  line-height: 1.55;
}
.hero-character-lines strong {
  display: block;
  margin-bottom: 2px;
  color: var(--accent-dark);
  font-size: 14px;
}
.hero-character-lines span {
  display: block;
  overflow-wrap: anywhere;
}
/* hero-firstview-characters:end */

@media (min-width: 761px) {
  .hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(220px, 300px);
    gap: 18px 30px;
    align-items: center;
  }
  .hero-inner > .eyebrow,
  .hero-inner > h1,
  .hero-inner > .lead,
  .hero-inner > .hero-beginner-link,
  .hero-inner > .notice {
    grid-column: 1;
  }
  .hero-firstview-characters {
    grid-column: 2;
    grid-row: 1 / span 5;
    align-self: center;
    justify-self: end;
  }
}

/* character-sitewide-placement:start */
.beginner-firstview-characters,
.character-mini-note {
  display: grid;
  gap: 14px;
  margin: 20px 0;
  padding: 16px 18px;
  border: 1px solid #c9e5e2;
  border-radius: 8px;
  background: linear-gradient(135deg, #ffffff 0%, #f4fbfa 100%);
}
.beginner-firstview-characters {
  grid-template-columns: 180px minmax(0, 1fr);
  align-items: center;
  margin-top: 0;
}
.beginner-firstview-pair,
.character-mini-pair {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: 8px;
  overflow: visible;
}
.beginner-firstview-pair img,
.character-mini-pair img {
  display: block;
  width: auto;
  height: auto;
  object-fit: contain;
}
.beginner-firstview-pair img {
  max-width: 82px;
  max-height: 140px;
}
.character-mini-note {
  grid-template-columns: 136px minmax(0, 1fr);
  align-items: center;
}
.character-mini-pair img {
  max-width: 60px;
  max-height: 102px;
}
.beginner-firstview-talk,
.character-mini-talk {
  display: grid;
  gap: 8px;
  min-width: 0;
}
.beginner-firstview-talk p,
.character-mini-talk p {
  margin: 0;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}
.beginner-firstview-talk strong,
.character-mini-talk strong {
  display: block;
  margin-bottom: 2px;
  color: var(--accent-dark);
  font-size: 14px;
}
.beginner-firstview-talk span,
.character-mini-talk span {
  display: block;
  overflow-wrap: anywhere;
}
/* character-sitewide-placement:end */

@media (max-width: 760px) {
  body { font-size: 15.5px; }
  .site-header { position: static; display: grid; gap: 14px; }
  .global-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); justify-content: stretch; gap: 8px 14px; max-width: 100%; min-width: 0; }
  .global-nav a { min-width: 0; overflow-wrap: anywhere; white-space: normal; }
  .global-nav .nav-app-link { display: none; }
  h1 { font-size: 26px; overflow-wrap: anywhere; word-break: break-all; line-break: strict; }
  .lead, .notice, p, li, .guide-card span, .guide-card small, .hero-beginner-link span, .hero-beginner-link small { overflow-wrap: anywhere; line-break: strict; }
  body { overflow-x: hidden; }
  .site-header, .site-footer { max-width: 100%; overflow-x: hidden; }
  .hero-inner, .content-wrap { width: min(340px, calc(100vw - 40px)); max-width: 340px; margin-left: 20px; margin-right: 20px; padding-left: 0; padding-right: 0; overflow-x: hidden; }
  .lead { font-size: 16px; }
  .hero-firstview-characters {
    grid-template-columns: 1fr;
    gap: 10px;
    margin-top: 16px;
    padding: 12px;
    max-width: 100%;
  }
  .hero-character-pair {
    justify-content: center;
    gap: 8px;
  }
  .hero-character-pair img {
    max-width: 76px;
    max-height: 118px;
  }
  .hero-character-lines p {
    padding: 8px 10px;
    font-size: 13.5px;
  }
  .beginner-firstview-characters,
  .character-mini-note {
    grid-template-columns: 1fr;
    padding: 14px;
  }
  .beginner-firstview-pair img {
    max-width: 76px;
    max-height: 122px;
  }
  .character-mini-pair img {
    max-width: 58px;
    max-height: 96px;
  }
  .card-grid { grid-template-columns: 1fr; }
  .guide-card { min-height: 0; }
  .site-footer { display: grid; }
  .site-footer nav { justify-content: flex-start; }
}

/* light-diagram-block:start */
.visual-guide-section { background: #fbfdff; margin: 24px 0; padding: 26px 20px; border: 1px solid var(--line); border-radius: 8px; }
.guide-flow { display: grid; gap: 10px; margin: 18px 0; }
.guide-flow-step { position: relative; display: grid; align-items: center; min-height: 48px; padding: 12px 16px; border: 1px solid var(--line); border-radius: 8px; background: #ffffff; font-weight: 800; color: var(--accent-dark); }
.guide-flow-step:not(:last-child)::after { content: "↓"; position: absolute; left: 50%; bottom: -22px; transform: translateX(-50%); width: 24px; height: 24px; display: grid; place-items: center; color: var(--muted); font-weight: 800; background: #fbfdff; }
.guide-table-wrap { width: 100%; overflow-x: auto; margin: 18px 0; }
.guide-compare-table { width: 100%; border-collapse: collapse; min-width: 0; table-layout: fixed; background: #ffffff; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.guide-compare-table th, .guide-compare-table td { padding: 14px; border: 1px solid var(--line); vertical-align: top; overflow-wrap: anywhere; line-break: strict; }
.guide-compare-table th { background: #eef7f6; color: var(--accent-dark); text-align: left; font-size: 14px; }
.guide-tips-grid, .guide-two-col { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 18px 0; }
.guide-tip, .guide-col { padding: 15px; border: 1px solid var(--line); border-radius: 8px; background: #ffffff; }
.guide-tip { display: grid; gap: 6px; }
.guide-tip strong, .guide-col h3 { color: var(--accent-dark); }
.guide-tip span { color: var(--muted); }
.guide-col h3 { margin: 0 0 8px; font-size: 18px; }
.guide-col ul { margin: 0; padding-left: 1.2em; }
@media (max-width: 760px) {
  .visual-guide-section { padding: 22px 14px; }
  .guide-tips-grid, .guide-two-col { grid-template-columns: 1fr; }
  .guide-compare-table { font-size: 14px; }
  .guide-compare-table th, .guide-compare-table td { padding: 11px; }
}
/* light-diagram-block:end */

/* visual-ui-block:start */
.visual-ui-section { padding: 28px 0; }
.guide-summary-box, .guide-warning { margin: 18px 0; padding: 18px; border-radius: 8px; border: 1px solid var(--line); }
.guide-summary-box { background: #ffffff; }
.guide-summary-box > strong, .guide-warning > strong { display: block; margin-bottom: 10px; color: var(--accent-dark); font-size: 18px; }
.guide-summary-box ul, .guide-warning ul { margin: 0; padding-left: 1.25em; }
.guide-summary-box li, .guide-warning li { margin: 6px 0; }
.guide-warning { background: var(--warn); border-color: #f1d790; color: #594214; }
.guide-action-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin: 18px 0; }
.guide-action-card { display: grid; gap: 10px; padding: 16px; border: 1px solid var(--line); border-radius: 8px; background: #ffffff; }
.guide-action-card strong { color: var(--accent-dark); }
.guide-prompt-box { padding: 13px; border-radius: 8px; background: #eef7f6; color: #123c3b; font-size: 14px; line-height: 1.7; overflow-wrap: anywhere; white-space: pre-wrap; }
.guide-next-links { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin: 18px 0; }
.guide-next-links a { display: grid; gap: 6px; padding: 16px; border: 1px solid var(--line); border-radius: 8px; background: var(--soft); color: var(--text); }
.guide-next-links strong { color: var(--accent-dark); }
.guide-next-links span { color: var(--muted); font-size: 14px; line-height: 1.6; }
@media (max-width: 760px) {
  .guide-action-cards, .guide-next-links { grid-template-columns: 1fr; }
  .guide-summary-box, .guide-warning, .guide-action-card, .guide-next-links a { padding: 14px; }
}
/* visual-ui-block:end */




/* practical-examples-block:start */
.practical-examples { background: #fbfdff; margin: 24px 0; padding: 26px 20px; border: 1px solid var(--line); border-radius: 8px; }
.practical-examples h3 { margin: 0 0 10px; color: var(--accent-dark); font-size: 18px; line-height: 1.45; }
.practical-card-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin: 18px 0; }
.practical-card { padding: 16px; border: 1px solid var(--line); border-radius: 8px; background: #ffffff; min-width: 0; }
.practical-prompt { margin: 10px 0 0; padding: 13px; background: #eef7f6; color: #123c3b; border: 1px solid #c9e5e2; border-radius: 8px; white-space: pre-wrap; overflow-wrap: anywhere; font-size: 14px; line-height: 1.7; }
.practical-prompt code { font-family: inherit; }
.practical-compare, .practical-compare-table { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; margin: 18px 0; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: #ffffff; }
.practical-compare > div, .practical-compare-table > div { padding: 15px; border-bottom: 1px solid var(--line); min-width: 0; }
.practical-compare > div:nth-child(odd), .practical-compare-table > div:nth-child(4n+1), .practical-compare-table > div:nth-child(4n+2) { background: #fffdf7; }
.practical-compare > div:nth-child(odd), .practical-compare-table > div:nth-child(odd) { border-right: 1px solid var(--line); }
.practical-compare > div:last-child, .practical-compare > div:nth-last-child(2), .practical-compare-table > div:last-child, .practical-compare-table > div:nth-last-child(2) { border-bottom: 0; }
.practical-compare strong, .practical-compare-table strong { display: block; margin-bottom: 6px; color: var(--accent-dark); }
.practical-warning { margin: 18px 0; padding: 16px; border: 1px solid #f1d790; border-radius: 8px; background: var(--warn); color: #594214; }
.practical-warning strong { display: block; margin-bottom: 8px; }
.practical-note { padding: 14px 16px; border-left: 4px solid var(--accent); background: #f5f8fb; border-radius: 8px; }
@media (max-width: 760px) {
  .practical-examples { padding: 22px 14px; }
  .practical-card-grid, .practical-compare, .practical-compare-table { grid-template-columns: 1fr; }
  .practical-compare > div:nth-child(odd), .practical-compare-table > div:nth-child(odd) { border-right: 0; }
  .practical-compare > div, .practical-compare-table > div { padding: 13px; }
}
/* practical-examples-block:end */


/* visual-expanded-block:start */
.visual-expanded { background: #fbfdff; margin: 0 0 24px; padding: 24px 20px; border: 1px solid var(--line); border-radius: 8px; }
.visual-expanded h2 { margin-bottom: 10px; }
.visual-quick-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin: 18px 0; }
.visual-card { display: grid; gap: 6px; min-width: 0; padding: 15px; border: 1px solid var(--line); border-radius: 8px; background: #ffffff; }
.visual-card strong { color: var(--accent-dark); line-height: 1.45; }
.visual-card span { color: var(--muted); font-size: 14px; line-height: 1.65; overflow-wrap: anywhere; }
.visual-table-wrap { width: 100%; overflow-x: auto; margin: 18px 0; }
.visual-table { width: 100%; min-width: 0; table-layout: fixed; border-collapse: collapse; border: 1px solid var(--line); border-radius: 8px; overflow: hidden; background: #ffffff; }
.visual-table th, .visual-table td { padding: 12px; border: 1px solid var(--line); text-align: left; vertical-align: top; overflow-wrap: anywhere; line-break: strict; }
.visual-table th { width: 28%; background: #eef7f6; color: var(--accent-dark); }
.visual-flow-mini { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; margin: 18px 0; }
.visual-flow-node { display: grid; gap: 6px; align-content: start; min-width: 0; padding: 14px; border: 1px solid var(--line); border-radius: 8px; background: #ffffff; }
.visual-flow-node b { display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--accent); color: #ffffff; }
.visual-flow-node span { font-weight: 700; color: var(--accent-dark); overflow-wrap: anywhere; }
.visual-svg-card { margin: 18px 0; padding: 14px; border: 1px solid #c9e5e2; border-radius: 8px; background: #ffffff; overflow: hidden; }
.visual-svg-card svg { display: block; width: 100%; height: auto; }
.visual-svg-card rect { fill: #eef7f6; stroke: #6fb3ad; stroke-width: 2; }
.visual-svg-card path { stroke: #6b7c8f; stroke-width: 4; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.visual-svg-card text { text-anchor: middle; dominant-baseline: middle; font-size: 24px; font-weight: 800; fill: #124f4d; }
@media (max-width: 760px) {
  .visual-expanded { padding: 22px 14px; }
  .visual-quick-grid, .visual-flow-mini { grid-template-columns: 1fr; }
  .visual-table { font-size: 14px; }
  .visual-table th, .visual-table td { display: block; width: 100%; padding: 11px; }
  .visual-table tr { display: block; border-bottom: 1px solid var(--line); }
  .visual-table tr:last-child { border-bottom: 0; }
  .visual-svg-card { padding: 10px; }
  .visual-svg-card text { font-size: 30px; }
}
/* visual-expanded-block:end */


/* character-guide-block:start */
.character-guide-box {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  margin: 20px 0;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(135deg, #ffffff 0%, #fbfdff 100%);
  box-shadow: 0 10px 24px rgba(20, 48, 80, 0.06);
}
.character-guide-home {
  margin-top: 0;
}
.character-guide-avatars {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  align-items: end;
  overflow: visible;
  padding: 2px 10px 0;
}
.character-guide-image {
  display: block;
  justify-self: center;
  width: 90%;
  max-height: 190px;
  object-fit: contain;
}
.character-guide-image img {
  display: inline-block;
  width: auto;
  max-width: 46%;
  max-height: 190px;
  height: auto;
  object-fit: contain;
}
.gpt-guide-kun {
  transform: translateX(2px);
}
.manabu-chan {
  transform: translateX(-2px);
}
.character-guide-text {
  min-width: 0;
}
.character-guide-label {
  margin: 0 0 8px;
  color: var(--accent-dark);
  font-size: 14px;
  font-weight: 800;
}
.character-guide-text h2 {
  margin: 0 0 10px;
}
.character-dialogue {
  display: grid;
  gap: 10px;
  margin: 16px 0;
}
.character-dialogue p {
  margin: 0;
  padding: 13px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}
.character-dialogue strong {
  display: block;
  margin-bottom: 4px;
  color: var(--accent-dark);
}
.character-dialogue span {
  display: block;
  color: var(--text);
}
.character-guide-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}
.character-guide-links a {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 9px 13px;
  border: 1px solid #c9e5e2;
  border-radius: 8px;
  background: #eef7f6;
  color: var(--accent-dark);
  font-weight: 800;
}
@media (max-width: 760px) {
  .character-guide-box {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 16px 14px;
  }
  .character-guide-avatars {
    max-width: 220px;
    margin: 0 auto;
    gap: 8px;
    padding-inline: 8px;
  }
  .character-guide-image {
    width: 86%;
    max-height: 132px;
  }
  .character-guide-image img {
    max-height: 132px;
  }
  .character-guide-links {
    display: grid;
    grid-template-columns: 1fr;
  }
  .character-guide-links a {
    justify-content: center;
    text-align: center;
  }
}
/* character-guide-block:end */

/* visual-onepoint-enhance:start */
.visual-onepoint-enhance {
  margin: 24px 0;
  padding: 20px;
  border: 1px solid #cfe4e2;
  border-radius: 8px;
  background: linear-gradient(135deg, #ffffff 0%, #f4fbfa 100%);
}
.visual-onepoint-grid {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr);
  gap: 18px;
  align-items: center;
}
.visual-onepoint-characters {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: 8px;
  min-width: 0;
  overflow: visible;
}
.visual-onepoint-characters img {
  display: block;
  width: auto;
  max-width: 76px;
  max-height: 128px;
  height: auto;
  object-fit: contain;
}
.visual-onepoint-copy {
  min-width: 0;
}
.visual-onepoint-label {
  margin: 0 0 8px;
  color: var(--accent-dark);
  font-size: 14px;
  font-weight: 800;
}
.visual-onepoint-copy h2 {
  margin-bottom: 10px;
}
.visual-onepoint-talk {
  display: grid;
  gap: 8px;
  margin: 14px 0;
}
.visual-onepoint-bubble {
  margin: 0;
  padding: 11px 13px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}
.visual-onepoint-bubble strong {
  display: block;
  margin-bottom: 3px;
  color: var(--accent-dark);
}
.visual-onepoint-bubble span {
  display: block;
}
.visual-onepoint-flow {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: 12px;
}
.visual-onepoint-flow span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 6px 10px;
  border: 1px solid #c9e5e2;
  border-radius: 999px;
  background: #eef7f6;
  color: var(--accent-dark);
  font-size: 14px;
  font-weight: 800;
}
.visual-onepoint-flow i {
  color: var(--muted);
  font-style: normal;
  font-weight: 800;
}
@media (max-width: 760px) {
  .visual-onepoint-enhance {
    padding: 16px 14px;
  }
  .visual-onepoint-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .visual-onepoint-characters {
    max-width: 210px;
    margin: 0 auto;
  }
  .visual-onepoint-characters img {
    max-width: 72px;
    max-height: 112px;
  }
  .visual-onepoint-flow {
    display: grid;
    grid-template-columns: 1fr;
  }
  .visual-onepoint-flow i {
    display: none;
  }
}
/* visual-onepoint-enhance:end */

/* beginner-character-deep:start */
.beginner-character-deep {
  display: grid;
  gap: 24px;
}
.beginner-summary-card {
  padding: 18px;
  border: 1px solid #c9e5e2;
  border-radius: 8px;
  background: #f4fbfa;
}
.beginner-summary-card ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 18px;
  margin: 10px 0 0;
  padding-left: 20px;
}
.beginner-chat-panel,
.beginner-fix-panel {
  display: grid;
  gap: 12px;
}
.beginner-chat-row {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 12px;
  align-items: end;
}
.beginner-chat-row img {
  width: 58px;
  height: 58px;
  object-fit: contain;
}
.beginner-chat-row p {
  margin: 0;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}
.beginner-chat-row.guide p {
  background: #eef7f6;
  border-color: #c9e5e2;
}
.beginner-chat-row strong,
.beginner-chat-row span {
  display: block;
}
.beginner-chat-row strong {
  margin-bottom: 4px;
  color: var(--accent-dark);
}
.beginner-step-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}
.beginner-step-strip div,
.beginner-prompt-cards div,
.beginner-template-grid div,
.beginner-fix-grid span {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}
.beginner-step-strip div {
  padding: 12px;
  text-align: center;
}
.beginner-step-strip b,
.beginner-step-strip span {
  display: block;
}
.beginner-step-strip b {
  color: var(--accent-dark);
  font-size: 13px;
}
.beginner-prompt-cards,
.beginner-template-grid,
.beginner-next-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.beginner-prompt-cards div,
.beginner-template-grid div {
  padding: 15px;
}
.beginner-prompt-cards h3 {
  margin-top: 0;
}
.beginner-prompt-cards p,
.beginner-template-grid code {
  display: block;
  margin: 8px 0 0;
  padding: 10px;
  border-radius: 8px;
  background: #f7fafc;
  color: var(--text);
  white-space: normal;
}
.beginner-compare-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--line);
}
.beginner-compare-table th,
.beginner-compare-table td {
  padding: 12px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
.beginner-compare-table th {
  background: #eef7f6;
  color: var(--accent-dark);
}
.beginner-fix-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.beginner-fix-grid span {
  padding: 11px 12px;
}
.beginner-safe-box {
  padding: 18px;
  border: 1px solid #f1c96d;
  border-radius: 8px;
  background: #fff8e8;
}
.beginner-safe-box h2 {
  margin-top: 0;
}
.beginner-next-cards a {
  display: block;
  padding: 15px;
  border: 1px solid #c9e5e2;
  border-radius: 8px;
  background: #f4fbfa;
}
.beginner-next-cards strong,
.beginner-next-cards span {
  display: block;
}
.beginner-next-cards span {
  margin-top: 4px;
  color: var(--muted);
}
@media (max-width: 760px) {
  .beginner-summary-card ul,
  .beginner-step-strip,
  .beginner-prompt-cards,
  .beginner-template-grid,
  .beginner-fix-grid,
  .beginner-next-cards {
    grid-template-columns: 1fr;
  }
  .beginner-chat-row {
    grid-template-columns: 46px minmax(0, 1fr);
  }
  .beginner-chat-row img {
    width: 46px;
    height: 46px;
  }
}
/* beginner-character-deep:end */


/* beginner-child-pages:start */
.beginner-child-hub,
.beginner-child-link-block {
  background: #fbfdff;
  margin: 22px 0;
  padding: 24px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
}
.beginner-child-character {
  margin-top: 0;
}
.beginner-child-character .character-guide-image {
  max-height: 170px;
}
.beginner-template-grid code {
  font-family: inherit;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.beginner-fix-grid span {
  line-height: 1.65;
}
@media (max-width: 760px) {
  .beginner-child-hub,
  .beginner-child-link-block {
    padding: 20px 14px;
  }
  .beginner-child-character .character-guide-image {
    max-height: 126px;
  }
}
/* beginner-child-pages:end */


/* install-start-page:start */
.install-start-link-block {
  background: #fbfdff;
  margin: 22px 0;
  padding: 24px 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
}
.install-start-link-block p {
  max-width: 760px;
}
@media (max-width: 760px) {
  .install-start-link-block {
    padding: 20px 14px;
  }
}
/* install-start-page:end */


/* chatgptguide-logo-header:start */
.brand-logo {
  min-width: 220px;
  gap: 3px;
  align-items: start;
}
.brand-logo img {
  display: block;
  width: min(280px, 28vw);
  max-width: 280px;
  height: auto;
}
.brand-logo .brand-text {
  display: block;
  margin-left: 2px;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.2;
}
@media (max-width: 760px) {
  .brand-logo {
    min-width: 0;
  }
  .brand-logo img {
    width: min(205px, 62vw);
    max-width: 205px;
  }
}
/* chatgptguide-logo-header:end */



/* dual-logo-links:start */
.logo-link {
  display: inline-flex;
  align-items: center;
  border-radius: 8px;
  transition: opacity .18s ease, transform .18s ease;
}
.brand-logo {
  border-radius: 8px;
  transition: opacity .18s ease, transform .18s ease;
}
.logo-link:hover,
.brand-logo:hover {
  opacity: .86;
  text-decoration: none;
  transform: translateY(-1px);
}
.logo-link:focus-visible,
.brand-logo:focus-visible {
  outline: 2px solid var(--accent-dark);
  outline-offset: 3px;
}
.site-header .global-nav {
  flex: 1 1 auto;
}
.header-logo-right {
  flex: 0 0 auto;
  margin-left: 6px;
}
.header-logo-right img {
  display: block;
  width: min(150px, 13vw);
  max-width: 150px;
  height: auto;
}
.footer-logo-link img {
  display: block;
  width: min(220px, 24vw);
  max-width: 220px;
  height: auto;
}
.footer-logo-link {
  display: flex;
  width: max-content;
  max-width: 100%;
}
.site-footer > div,
.site-footer nav,
.site-footer .footer-related {
  min-width: 0;
  max-width: 100%;
}
.site-footer p,
.site-footer strong,
.site-footer a {
  overflow-wrap: anywhere;
}
.footer-logo-left {
  margin-bottom: 8px;
}
.footer-logo-right {
  align-self: center;
  margin-left: auto;
}
@media (max-width: 980px) {
  .header-logo-right {
    display: none;
  }
}
@media (max-width: 760px) {
  .site-footer {
    grid-template-columns: minmax(0, 1fr);
  }
  .site-footer > div,
  .site-footer nav,
  .site-footer .footer-related {
    width: 100%;
  }
  .site-footer p,
  .site-footer strong,
  .site-footer a {
    white-space: normal;
    word-break: break-all;
    overflow-wrap: anywhere;
  }
  .site-footer p {
    display: block;
    width: 100%;
    max-width: 22em;
  }
  .site-footer nav {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 16px;
  }
  .footer-logo-link img {
    width: min(190px, 62vw);
    max-width: 190px;
  }
  .footer-logo-right {
    margin-left: 0;
    justify-self: start;
  }
}
/* dual-logo-links:end */


/* visual-quick-ui:start */
.visual-quick-ui-box {
  margin: 24px 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfdff;
}
.quick-bubble-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}
.quick-bubble {
  position: relative;
  padding: 14px 16px;
  border: 1px solid #cfe3df;
  border-radius: 8px;
  background: #ffffff;
}
.quick-bubble::before {
  content: "";
  position: absolute;
  top: 18px;
  width: 10px;
  height: 10px;
  border-left: 1px solid #cfe3df;
  border-bottom: 1px solid #cfe3df;
  background: inherit;
}
.manabu-bubble::before {
  left: -6px;
  transform: rotate(45deg);
}
.guide-bubble::before {
  right: -6px;
  transform: rotate(225deg);
}
.quick-bubble strong {
  display: block;
  color: var(--accent-dark);
  margin-bottom: 4px;
}
.quick-bubble p,
.glow-point-box p,
.quick-step-card p,
.quick-mini-card p,
.quick-chat-message p {
  margin: 0;
}
.glow-point-box {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  margin: 16px 0 20px;
  padding: 16px;
  border: 1px solid #f1c96d;
  border-radius: 8px;
  background: #fff9e8;
  box-shadow: 0 0 0 4px rgba(255, 211, 92, 0.12);
}
.glow-point-box > span {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  color: #8a5a00;
  background: #ffe8a3;
  box-shadow: 0 0 18px rgba(255, 201, 64, 0.48);
}
.quick-chat-ui {
  display: grid;
  gap: 10px;
  margin: 16px 0;
  padding: 16px;
  border: 1px solid #d7e4ee;
  border-radius: 8px;
  background: #f7fbff;
}
.quick-chat-message {
  max-width: 86%;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #ffffff;
}
.quick-chat-message b {
  display: block;
  margin-bottom: 4px;
  color: var(--accent-dark);
}
.chat-user {
  justify-self: end;
  background: #eaf7f5;
}
.chat-ai {
  justify-self: start;
}
.quick-step-cards,
.quick-mini-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin: 16px 0;
}
.quick-step-card,
.quick-mini-card {
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}
.quick-step-card span,
.quick-mini-card > span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  min-height: 30px;
  margin-bottom: 8px;
  padding: 2px 8px;
  border-radius: 999px;
  background: #eef7f6;
  color: var(--accent-dark);
  font-weight: 800;
}
.quick-step-card strong,
.quick-mini-card strong {
  display: block;
  color: var(--heading);
  margin-bottom: 4px;
}
.quick-compare-wrap {
  overflow-x: auto;
  margin-top: 16px;
}
.quick-compare-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--line);
}
.quick-compare-table th,
.quick-compare-table td {
  padding: 12px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
.quick-compare-table th {
  background: #eef7f6;
  color: var(--accent-dark);
}
@media (max-width: 760px) {
  .visual-quick-ui-box {
    padding: 18px 14px;
  }
  .quick-bubble-row,
  .quick-step-cards,
  .quick-mini-cards {
    grid-template-columns: 1fr;
  }
  .guide-bubble::before {
    left: -6px;
    right: auto;
    transform: rotate(45deg);
  }
  .quick-chat-message {
    max-width: 100%;
  }
}
/* visual-quick-ui:end */



/* news-ui:start */
.top-news-section,
.news-hub-intro {
  background: #fbfdff;
  border: 1px solid var(--line);
  border-radius: 8px;
}
.section-heading-row {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: end;
  margin-bottom: 14px;
}
.section-heading-row h2 {
  margin: 0;
}
.section-more-link,
.news-more-links a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 12px;
  border: 1px solid #c9e5e2;
  border-radius: 8px;
  background: #ffffff;
  font-weight: 700;
}
.top-news-grid,
.news-list,
.news-guide-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}
.news-card,
.top-news-card,
.news-guide-grid a {
  display: grid;
  gap: 9px;
  min-width: 0;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}
.news-card h2,
.top-news-card h3 {
  margin: 0;
  font-size: 18px;
  line-height: 1.55;
}
.news-card p,
.top-news-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}
.news-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
  color: var(--muted);
  font-size: 13px;
}
.news-label {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  color: #ffffff;
  font-weight: 700;
}
.news-label-chatgpt {
  background: var(--accent);
}
.news-label-ai-use {
  background: #5f4bb6;
}
.news-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.news-tags span {
  padding: 3px 8px;
  border-radius: 999px;
  background: #eef7f6;
  color: var(--accent-dark);
  font-size: 12px;
}
.news-more-links,
.news-related-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}
.news-related-links a {
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--soft);
  font-weight: 700;
}
.news-empty {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}
@media (max-width: 760px) {
  .section-heading-row {
    display: grid;
    align-items: start;
  }
  .top-news-grid,
  .news-list,
  .news-guide-grid {
    grid-template-columns: 1fr;
  }
  .top-news-section {
    padding: 14px;
  }
  .top-news-section > p {
    font-size: 14px;
    line-height: 1.7;
  }
  .top-news-grid {
    gap: 10px;
    margin-top: 12px;
  }
  .top-news-grid .top-news-card:nth-of-type(n+5) {
    display: none;
  }
  .top-news-card {
    gap: 6px;
    padding: 12px;
  }
  .top-news-card h3 {
    font-size: 15px;
    line-height: 1.45;
  }
  .top-news-card p {
    display: -webkit-box;
    overflow: hidden;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    font-size: 13px;
    line-height: 1.55;
  }
  .top-news-card small {
    font-size: 12px;
  }
  .top-news-card .news-meta {
    gap: 6px;
    font-size: 12px;
  }
  .top-news-card .news-label {
    padding: 2px 7px;
    font-size: 11px;
  }
  .top-news-section .news-more-links {
    gap: 8px;
    margin-top: 12px;
  }
  .top-news-section .news-more-links a,
  .top-news-section .section-more-link {
    min-height: 36px;
    padding: 7px 10px;
    font-size: 13px;
  }
}
/* news-ui:end */

/* top-category-hub:start */
.top-category-hub {
  background: linear-gradient(180deg, #ffffff 0%, #f6fbfb 100%);
}
.category-hub-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}
.category-hub-card {
  display: grid;
  gap: 10px;
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}
.category-hub-card h3 {
  margin: 0;
  color: var(--accent-dark);
  font-size: 19px;
  line-height: 1.45;
}
.category-hub-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}
.category-hub-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.category-hub-links a {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 6px 10px;
  border: 1px solid #c9e5e2;
  border-radius: 999px;
  background: var(--soft);
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 700;
}
@media (max-width: 760px) {
  .category-hub-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .category-hub-card {
    padding: 14px;
  }
  .category-hub-card h3 {
    font-size: 17px;
  }
  .category-hub-links a {
    min-height: 32px;
    font-size: 12px;
  }
}
/* top-category-hub:end */


/* dual-site-quality-logo-fix:start */
.footer-logo-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  margin-bottom: 14px;
}
@media (max-width: 760px) {
  .footer-logo-row {
    justify-content: flex-start;
  }
}
/* dual-site-quality-logo-fix:end */


/* news-ja-title-fix:start */
.news-card h2 a,
.top-news-card h3 a {
  overflow-wrap: anywhere;
  line-break: strict;
}
.news-card p,
.top-news-card p {
  overflow-wrap: anywhere;
}
/* news-ja-title-fix:end */