:root {
  --space-ink: #111111;
  --space-body: #333333;
  --space-muted: #666666;
  --space-subtle: #777777;
  --space-paper: #ffffff;
  --space-soft: #f2f2f2;
  --space-rule: #e8e8e8;
  --space-page-gutter: 5%;
  color: var(--space-ink);
  background: var(--space-paper);
  font-family: 'Noto Sans SC', 'DM Sans', Arial, sans-serif;
}

body { overflow-x: clip; }

:where(a, button, input, textarea, summary):focus-visible {
  outline: 2px solid var(--space-ink);
  outline-offset: 3px;
}

.site-header { padding-inline: var(--space-page-gutter); border-color: var(--space-rule); }
.brand { color: #c9252d; white-space: nowrap; }
.brand-image { width: 165px; height: 36px; object-fit: contain; flex: none; }
.primary-nav { margin-right: auto; font-size: 13px; }
.header-actions { gap: 12px; flex-wrap: wrap; }
.header-search-form { border-color: var(--space-rule); }
.header-search-form input { font-size: 12px; }
.experience-menu summary,
.contact-button {
  min-height: 36px;
  padding: 0 14px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
}
.experience-menu summary { min-width: 72px; justify-content: center; gap: 0; background: var(--space-soft); color: var(--space-ink); }
.contact-button { background: var(--space-ink); color: var(--space-paper); }
.header-free-button { background: var(--space-soft); color: var(--space-ink); }
.header-free-button:hover { background: var(--space-rule); }

.button {
  min-height: 46px;
  padding: 0 22px;
  gap: 22px;
  border: 0;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.3;
  white-space: nowrap;
}
.button-dark { background: var(--space-ink); color: var(--space-paper); }
.button-light { background: var(--space-soft); color: var(--space-ink); }
.button-light:hover { background: var(--space-rule); }
.hero .button { min-height: 46px; padding: 0 22px; gap: 22px; font-size: 13px; }
.hero-actions, .detail-actions { gap: 12px; }

.hero {
  min-height: 400px;
  padding: 64px var(--space-page-gutter);
  border-color: var(--space-rule);
}
.hero-copy { max-width: 100%; }
.hero h1 {
  margin: 0 0 20px;
  font-size: clamp(40px, 3.8vw, 54px);
  line-height: 1.16;
  font-weight: 600;
  letter-spacing: -.055em;
  white-space: nowrap;
}
.hero-intro {
  margin: 0 0 28px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--space-muted);
  white-space: nowrap;
}
.section-tabs { padding: 16px var(--space-page-gutter); border-color: var(--space-rule); }
.section-tabs a {
  min-height: 38px;
  padding: 0 20px;
  display: inline-flex;
  align-items: center;
  border-color: var(--space-rule);
  font-size: 12px;
}

.content-section { padding: 72px var(--space-page-gutter) 35px; }
.section-heading { margin-bottom: 36px; align-items: end; }
.section-heading h2 {
  margin: 0 0 12px;
  font-size: clamp(36px, 2.9vw, 40px);
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -.045em;
}
.section-heading p, .page-heading p { color: var(--space-subtle); font-size: 15px; line-height: 1.7; }
.text-link { gap: 8px; padding-bottom: 4px; font-size: 13px; color: var(--space-ink); }
.text-link span { font-size: 19px; line-height: 1; letter-spacing: 0; }
.card-visual:before, .detail-cover:before { background: linear-gradient(145deg, #f4f4f4, #c9c9c9 52%, #e8e8e8); }
.visual-manual:before { background: linear-gradient(145deg, #f5f5f5, #d4d4d4 52%, #ededed); }
.visual-tutorial:before { background: linear-gradient(145deg, #ededed, #bdbdbd 52%, #e4e4e4); }
.visual-demo:before { background: linear-gradient(145deg, #e8e8e8, #b4b4b4 52%, #dedede); }
.card-visual .cover-title {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 12%;
  background: linear-gradient(120deg, #315fa8 8%, #8245aa 34%, #b7477b 57%, #a85d37 77%, #167d79 96%);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  text-align: center;
  font-size: clamp(20px, 2vw, 34px);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -.04em;
  overflow-wrap: anywhere;
}
.work-card h3 { font-size: 18px; line-height: 1.4; }
.work-card p { color: var(--space-subtle); line-height: 1.7; }

.listing-page { padding: 80px var(--space-page-gutter) 110px; }
.page-heading { margin-bottom: 72px; }
.page-heading h1 { margin: 16px 0; font-size: clamp(52px, 4.5vw, 64px); line-height: 1.16; letter-spacing: -.055em; }
.detail-hero { padding: 80px var(--space-page-gutter); }
.detail-hero h1, .article-head h1, .docs-title h1 {
  margin: 16px 0 24px;
  font-size: clamp(44px, 4vw, 56px);
  line-height: 1.18;
  letter-spacing: -.055em;
}
.detail-hero p, .article-head p, .docs-title p { color: var(--space-muted); font-size: 16px; line-height: 1.8; }
.article-page { padding: 80px var(--space-page-gutter) 120px; }
.single-page { max-width: 1500px; min-height: 65vh; }
.single-page-breadcrumb { margin: 0 0 36px; color: var(--space-muted); font-size: 13px; line-height: 1.8; overflow-wrap: anywhere; }
.single-page-breadcrumb a:hover { color: var(--space-ink); text-decoration: underline; text-underline-offset: 3px; }
.single-page .article-head { max-width: 760px; margin-inline: auto; padding-bottom: 36px; }
.single-page .article-head h1 { margin-top: 0; }
.single-page .article-head p { max-width: 660px; }
.single-page-body { max-width: 760px; margin-inline: auto; padding-top: 40px; }
.single-page-body > :first-child { margin-top: 0; }
.single-page-body h2 { font-size: clamp(24px, 3vw, 32px); line-height: 1.4; letter-spacing: -.035em; }
.single-page-body ul, .single-page-body ol { padding-left: 1.5em; }
.single-page-body li { margin-bottom: 12px; }
.single-page-body table { display: block; max-width: 100%; overflow-x: auto; }
.docs-title { padding: 72px 0 48px; }
.manual-layout { grid-template-columns: 280px minmax(0, 1fr); max-width: 1440px; margin-inline: auto; }
.manual-layout .docs-sidebar { background: #fcfcfc; padding: 38px 22px 60px 30px; }
.manual-layout .docs-sidebar .back-link { margin-bottom: 35px; }
.manual-layout .docs-sidebar-title { font-size: 16px; line-height: 1.5; margin-bottom: 23px; }
.manual-layout .docs-main { width: 100%; padding: 38px min(6vw, 95px) 120px; }
.manual-layout .docs-title { padding: 54px 0 35px; }
.manual-layout .docs-title h1 { margin-top: 0; }
.manual-layout [data-manual-body] h2, .manual-layout [data-manual-body] h3 { scroll-margin-top: 24px; }
.manual-search { width: 100%; height: 42px; border: 1px solid var(--space-rule); border-radius: 6px; background: var(--space-paper); padding: 0 12px; color: var(--space-ink); font-size: 13px; }
.manual-search:focus { border-color: var(--space-ink); }
.manual-search-status { min-height: 20px; margin: 8px 0 10px; color: var(--space-subtle); font-size: 11px; }
.manual-layout [data-manual-toc] { display: flex; flex-direction: column; gap: 3px; }
.manual-layout [data-manual-toc] a { display: block; padding: 9px 12px; border-radius: 6px; color: var(--space-muted); font-size: 13px; line-height: 1.5; overflow-wrap: anywhere; }
.manual-layout [data-manual-toc] a[data-level="3"] { padding-left: 26px; font-size: 12px; }
.manual-layout [data-manual-toc] a:hover, .manual-layout [data-manual-toc] a.active { background: var(--space-soft); color: var(--space-ink); }
.manual-layout [data-manual-toc] a[hidden] { display: none; }
.manual-layout [data-folder-toc] { display: flex; flex-direction: column; gap: 3px; }
.manual-layout [data-folder-toc] a { display: block; padding: 9px 12px; border-radius: 6px; color: var(--space-muted); font-size: 13px; line-height: 1.5; overflow-wrap: anywhere; }
.manual-layout [data-folder-toc] a:hover { background: transparent; color: var(--space-ink); }
.manual-layout [data-folder-toc] a.active, .manual-layout [data-folder-toc] a[aria-current="page"] { background: var(--space-soft); color: var(--space-ink); }
.manual-layout [data-folder-toc] a[hidden], .manual-layout [data-folder-toc] .folder-sections[hidden] { display: none; }
.manual-layout [data-folder-toc] .folder-sections { padding-left: 16px; border-left: 1px solid var(--space-rule); margin-left: 12px; }
.manual-layout [data-folder-toc] .folder-sections a { font-size: 12px; padding: 6px 10px; }
.manual-layout [data-folder-toc] .folder-sections a[data-level="3"] { padding-left: 22px; }
.manual-layout [data-folder-body] h2, .manual-layout [data-folder-body] h3 { scroll-margin-top: 24px; }
.contact-intro h1 { font-size: clamp(44px, 4vw, 56px); line-height: 1.18; }
.contact-intro p { color: var(--space-muted); }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--space-ink); }
.pagination-wrap a { min-height: 40px; display: inline-flex; align-items: center; }

.site-footer { padding: 70px var(--space-page-gutter) 24px; background: var(--space-paper); }
.footer-navigation { max-width: calc(1500px - 10vw); margin: 0 auto 70px; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 32px; }
.footer-column h2 { margin: 0 0 24px; color: var(--space-muted); font-size: 13px; line-height: 1.5; font-weight: 500; }
.footer-column ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 15px; }
.footer-column a { font-size: 13px; line-height: 1.5; color: var(--space-ink); }
.footer-column a:hover { text-decoration: underline; text-underline-offset: 3px; }
.footer-bottom { border-color: var(--space-rule); }
.footer-bottom a:hover { color: var(--space-ink); text-decoration: underline; text-underline-offset: 3px; }

@media (max-width: 1280px) {
  .site-header { height: auto; min-height: 78px; padding-block: 16px; gap: 12px; flex-wrap: wrap; }
  .primary-nav { order: 3; width: 100%; justify-content: center; flex-wrap: wrap; padding: 11px 0 2px; }
  .footer-navigation { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 700px) {
  :root { --space-page-gutter: 6%; }
  .brand-image { width: 143px; height: auto; }
  .header-actions { width: 100%; margin-left: 0; justify-content: flex-start; }
  .header-search-form { flex: 1; min-width: 100px; max-width: 220px; }
  .header-actions .contact-button { min-height: 44px; font-size: 13px; }
  .primary-nav a { min-height: 44px; display: inline-flex; align-items: center; }
  .hero { min-height: 350px; padding-block: 54px; }
  .hero h1 { font-size: clamp(19px, 5vw, 32px); }
  .hero-intro { font-size: 13px; }
  .hero .button, .button { min-height: 44px; padding-inline: 18px; gap: 14px; font-size: 13px; }
  .section-tabs { padding-block: 12px; }
  .section-heading h2 { font-size: clamp(28px, 5vw, 32px); }
  .section-heading p, .page-heading p { font-size: 13px; }
  .content-section { padding-top: 56px; }
  .page-heading h1 { font-size: clamp(36px, 7vw, 44px); }
  .detail-hero h1, .article-head h1, .docs-title h1 { font-size: clamp(34px, 7vw, 42px); }
  .contact-intro h1 { font-size: clamp(34px, 7vw, 42px); }
  .detail-hero p, .article-head p, .docs-title p { font-size: 14px; }
  .work-card h3 { font-size: 16px; }
  .single-page { padding-block: 48px 72px; }
  .single-page-breadcrumb { margin-bottom: 28px; font-size: 12px; }
  .single-page .article-head { padding-bottom: 28px; }
  .single-page-body { padding-top: 32px; font-size: 14px; line-height: 1.8; }
  .manual-layout { display: block; }
  .manual-layout .docs-sidebar { position: relative; height: auto; padding: 26px var(--space-page-gutter); }
  .manual-layout [data-manual-toc] { max-height: 250px; overflow: auto; }
  .manual-layout [data-folder-toc] { max-height: 250px; overflow: auto; }
  .manual-layout .docs-main { padding: 30px var(--space-page-gutter) 90px; }
  .manual-layout .docs-title { padding: 38px 0 30px; }
  .footer-navigation { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 42px 24px; margin-bottom: 60px; }
}

@media (max-width: 400px) {
  .site-header { gap: 8px; }
  .brand { width: 100%; }
  .header-actions { width: 100%; margin: 0; justify-content: space-between; gap: 6px; }
  .header-search-form { width: 85px; }
  .experience-menu summary { min-width: 66px; padding-inline: 12px; }
  .contact-button { padding-inline: 12px; }
  .primary-nav { gap: 14px; }
  .footer-navigation { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: clamp(19px, 5.3vw, 21px); }
  .hero-intro { font-size: 11px; }
  .section-heading { display: flex; align-items: end; }
  .section-heading .text-link { display: inline-flex; margin-top: 0; }
}

.listing-sort { display: flex; align-items: center; gap: 16px; color: var(--space-muted); }
.work-card .card-visual img, .rich-content img, .detail-page .product-image img, .article-page .article-cover img { border-radius: 8px; }
.listing-tools .listing-sort a { color: var(--space-muted); font-weight: 500; }
.listing-tools .listing-sort a:hover, .listing-tools .listing-sort a.active { color: var(--space-ink); text-decoration: underline; text-underline-offset: 5px; }
.listing-tools .listing-sort a:focus-visible { outline: 2px solid var(--space-ink); outline-offset: 3px; }