/* Shared Sigora sub-page system: editorial, quiet, and evidence-led. */
:root {
  --page-bg: #f7f4ff;
  --page-paper: #fffdf9;
  --page-ink: #26205e;
  --page-muted: #737185;
  --page-line: #d4cff2;
  --page-brand: #5a50bc;
  --page-violet: #8b7cf6;
  --page-soft: #eeefff;
  --page-coral: #e9b0a2;
  --page-cyan: #a8dce6;
  --page-acid: #dce98b;
  --page-mono: "Geist Mono", "SFMono-Regular", Consolas, monospace;
}

body.subpage {
  min-width: 320px;
  color: var(--page-ink);
  background:
    radial-gradient(circle at 8% 12%, rgba(139,124,246,.16), transparent 25%),
    radial-gradient(circle at 88% 28%, rgba(233,176,162,.13), transparent 24%),
    var(--page-bg);
}

body.subpage::before { opacity: .08; }
body.subpage::after {
  opacity: .32;
  background-size: 72px 72px;
}

.site-shell { width: min(1240px, calc(100% - 64px)); margin: 0 auto; }
.site-header {
  min-height: 86px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  border-bottom: 1px solid var(--page-line);
}
.site-logo { width: 180px; height: auto; display: block; }
.site-nav { display: flex; align-items: center; gap: 7px; margin-left: auto; }
.site-nav a {
  padding: 8px 10px;
  color: var(--page-muted);
  font: 10px/1 var(--page-mono);
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: 8px;
  transition: color 140ms ease, background-color 180ms ease, border-color 180ms ease, transform 140ms ease-out;
}
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--page-brand); background: rgba(238,239,255,.72); border-color: var(--page-line); }
.site-nav a:active { transform: scale(.97); }
.site-status { display: inline-flex; align-items: center; gap: 8px; color: var(--page-muted); font: 10px var(--page-mono); white-space: nowrap; }
.site-status i { width: 6px; height: 6px; display: inline-block; border-radius: 50%; background: var(--page-violet); box-shadow: 0 0 0 4px rgba(139,124,246,.14); }

.subpage-main { padding: 72px 0 112px; }
.subpage-kicker { display: flex; align-items: center; gap: 10px; color: var(--page-brand); font: 700 10px/1 var(--page-mono); letter-spacing: .16em; text-transform: uppercase; }
.subpage-kicker::before { content: ""; width: 32px; height: 1px; background: var(--page-violet); }
.subpage-hero { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(280px, .95fr); gap: 64px; align-items: end; padding: 50px 0 86px; }
.subpage-hero h1 { max-width: 760px; margin: 20px 0 24px; color: var(--page-ink); font: 800 clamp(44px, 6.8vw, 84px)/.99 Inter, "PingFang SC", "Microsoft YaHei", sans-serif; letter-spacing: -.085em; }
.subpage-hero p { max-width: 620px; margin: 0; color: var(--page-muted); font-size: 17px; line-height: 1.75; }
.hero-note-card { position: relative; padding: 28px; color: var(--page-ink); background: rgba(255,253,249,.72); border: 1px solid var(--page-line); border-radius: 22px 15px 19px 13px; box-shadow: 12px 14px 0 rgba(90,80,188,.13); transform: rotate(1.2deg); }
.hero-note-card::before { content: ""; position: absolute; inset: 9px; border: 1px solid rgba(139,124,246,.24); border-radius: 15px 10px 14px 9px; pointer-events: none; }
.hero-note-card > * { position: relative; z-index: 1; }
.hero-note-card .note-label { color: var(--page-brand); font: 10px var(--page-mono); letter-spacing: .14em; }
.hero-note-card h2 { margin: 22px 0 12px; font: 700 28px/1.18 Inter, "PingFang SC", "Microsoft YaHei", sans-serif; letter-spacing: -.05em; }
.hero-note-card p { color: var(--page-muted); font-size: 14px; line-height: 1.65; }
.hero-note-card .note-rule { width: 44px; height: 2px; margin-top: 26px; background: linear-gradient(90deg, var(--page-coral), var(--page-violet)); }

.section-label { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 24px; color: var(--page-brand); font: 10px var(--page-mono); letter-spacing: .14em; text-transform: uppercase; }
.section-label::after { content: ""; height: 1px; flex: 1; background: var(--page-line); }
.section-title { max-width: 780px; margin: 0 0 34px; font: 700 clamp(30px, 4vw, 52px)/1.08 Inter, "PingFang SC", "Microsoft YaHei", sans-serif; letter-spacing: -.075em; }
.section-copy { max-width: 720px; color: var(--page-muted); font-size: 17px; line-height: 1.75; }
.section-block { padding: 70px 0; border-top: 1px solid var(--page-line); }

.principle-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.principle-card { min-height: 240px; padding: 25px; background: rgba(255,253,249,.74); border: 1px solid var(--page-line); border-radius: 17px 13px 20px 12px; box-shadow: 5px 7px 0 rgba(90,80,188,.08); }
.principle-card:nth-child(2) { transform: translateY(20px); }
.principle-card:nth-child(3) { transform: translateY(-8px); }
.principle-num { color: var(--page-brand); font: 12px var(--page-mono); }
.principle-card h3 { margin: 40px 0 12px; font: 700 24px/1.15 Inter, "PingFang SC", "Microsoft YaHei", sans-serif; letter-spacing: -.06em; }
.principle-card p { margin: 0; color: var(--page-muted); font-size: 14px; line-height: 1.65; }

.triad-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--page-line); border-bottom: 1px solid var(--page-line); }
.triad-item { min-height: 225px; padding: 26px 24px 30px 0; border-right: 1px solid var(--page-line); }
.triad-item + .triad-item { padding-left: 24px; }
.triad-item:last-child { border-right: 0; }
.triad-symbol { width: 32px; height: 32px; display: grid; place-items: center; color: var(--page-brand); border: 1px solid var(--page-brand); border-radius: 50%; font: 12px var(--page-mono); }
.triad-item h3 { margin: 24px 0 10px; font: 700 26px/1 Inter, "PingFang SC", "Microsoft YaHei", sans-serif; letter-spacing: -.06em; }
.triad-item p { max-width: 260px; margin: 0; color: var(--page-muted); font-size: 14px; line-height: 1.65; }

.statement { display: grid; grid-template-columns: .8fr 1.2fr; gap: 56px; align-items: start; }
.statement-aside { color: var(--page-brand); font: 11px/1.7 var(--page-mono); letter-spacing: .08em; }
.statement-copy { margin: 0; color: var(--page-ink); font: 700 clamp(28px, 4vw, 50px)/1.1 Inter, "PingFang SC", "Microsoft YaHei", sans-serif; letter-spacing: -.075em; }

.page-cta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 36px; }
.page-button { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 16px; color: var(--page-paper); background: var(--page-brand); border: 1px solid var(--page-brand); border-radius: 11px; font: 11px var(--page-mono); text-decoration: none; box-shadow: 4px 5px 0 rgba(90,80,188,.14); transition: background-color 180ms ease, transform 140ms ease-out, box-shadow 180ms ease; }
.page-button:hover { background: #453c99; box-shadow: 2px 3px 0 rgba(90,80,188,.16); }
.page-button:active { transform: scale(.97); }
.page-button.secondary { color: var(--page-brand); background: rgba(238,239,255,.74); box-shadow: none; }

.site-footer { display: flex; justify-content: space-between; gap: 24px; padding: 22px 0 34px; color: var(--page-muted); border-top: 1px solid var(--page-line); font: 10px/1.6 var(--page-mono); }
.site-footer a { color: var(--page-brand); text-decoration: none; }
.site-footer-links { display: flex; flex-wrap: wrap; gap: 14px; }

/* Blog */
.blog-hero { padding-bottom: 62px; }
.blog-hero h1 { max-width: 900px; }
.blog-meta-line { display: flex; align-items: center; gap: 16px; margin-top: 26px; color: var(--page-muted); font: 11px var(--page-mono); }
.blog-meta-line strong { color: var(--page-brand); font-weight: 500; }
.featured-post { display: grid; grid-template-columns: 1.05fr .95fr; gap: 0; overflow: hidden; background: var(--page-ink); border: 1px solid var(--page-ink); border-radius: 20px 14px 22px 13px; color: var(--page-paper); box-shadow: 10px 12px 0 rgba(90,80,188,.16); }
.featured-copy { padding: 38px; }
.post-tag { color: var(--page-coral); font: 10px var(--page-mono); letter-spacing: .14em; text-transform: uppercase; }
.featured-copy h2 { max-width: 620px; margin: 24px 0 16px; font: 700 clamp(30px, 4vw, 52px)/1.05 Inter, "PingFang SC", "Microsoft YaHei", sans-serif; letter-spacing: -.07em; }
.featured-copy p { max-width: 530px; color: rgba(255,253,249,.68); font-size: 16px; line-height: 1.7; }
.featured-copy .page-button { margin-top: 28px; color: var(--page-ink); background: var(--page-paper); border-color: var(--page-paper); }
.featured-art { position: relative; min-height: 370px; overflow: hidden; background: radial-gradient(circle at 62% 48%, rgba(139,124,246,.95), transparent 17%), radial-gradient(circle at 62% 48%, rgba(139,124,246,.28), transparent 44%), linear-gradient(135deg, #2d266d, #17143f); }
.featured-art::before, .featured-art::after { content: ""; position: absolute; inset: 14%; border: 1px solid rgba(168,220,230,.46); border-radius: 50%; transform: scaleX(1.35); }
.featured-art::after { inset: 27% 7%; border-color: rgba(233,176,162,.58); transform: scaleY(.56) rotate(-12deg); }
.featured-art span { position: absolute; color: rgba(255,253,249,.7); font: 10px var(--page-mono); letter-spacing: .15em; }
.featured-art .art-top { top: 26px; right: 28px; }
.featured-art .art-bottom { bottom: 26px; left: 28px; }
.blog-banner-carousel { position: relative; display: block; height: clamp(380px, 34vw, 440px); min-height: 0; background: var(--page-ink); }
.blog-poster-viewport { width: 100%; height: 100%; overflow: hidden; }
.blog-poster-track { display: flex; width: 100%; height: 100%; transition: transform 420ms cubic-bezier(.22,.61,.36,1); }
.blog-poster-slide { flex: 0 0 100%; min-width: 100%; height: 100%; }
.why-sigora-slide { display: grid; grid-template-columns: 1.05fr .95fr; color: var(--page-paper); background: var(--page-ink); }
.why-sigora-slide .featured-art { min-height: 100%; }
.research-banner-slide { position: relative; display: block; overflow: hidden; background: #f5f6f1; }
.research-banner-slide img { position: absolute; inset: 0; display: block; width: 100%; height: 100%; max-height: 100%; object-fit: contain; object-position: center; }
.blog-carousel-controls { position: absolute; z-index: 4; right: 14px; bottom: 14px; display: flex; align-items: center; gap: 7px; padding: 6px 8px; color: var(--page-ink); border: 1px solid rgba(90,80,188,.22); border-radius: 999px; background: rgba(255,253,249,.94); box-shadow: 0 6px 18px rgba(22,18,64,.14); }
.blog-carousel-controls button { display: grid; place-items: center; width: 26px; height: 26px; padding: 0; color: var(--page-brand); border: 0; border-radius: 50%; background: transparent; cursor: pointer; }
.blog-carousel-controls button:hover { color: #fff; background: var(--page-brand); }
.blog-carousel-dots { display: flex; align-items: center; gap: 4px; }
.blog-carousel-dots button { width: 7px; height: 7px; border: 1px solid var(--page-brand); }
.blog-carousel-dots button.active { width: 18px; border-radius: 999px; background: var(--page-brand); }
.blog-carousel-controls span { min-width: 28px; font: 700 9px/1 var(--page-mono); }
.blog-filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 54px 0 28px; }
.blog-filter { padding: 8px 12px; color: var(--page-muted); background: rgba(255,253,249,.52); border: 1px solid var(--page-line); border-radius: 999px; font: 10px var(--page-mono); cursor: pointer; transition: color 140ms ease, background 180ms ease, transform 140ms ease-out; }
.blog-filter:hover, .blog-filter.active { color: var(--page-paper); background: var(--page-brand); }
.blog-filter:active { transform: scale(.97); }
.post-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.post-card { display: flex; flex-direction: column; min-height: 295px; padding: 24px; overflow: hidden; background: rgba(255,253,249,.78); border: 1px solid var(--page-line); border-radius: 16px 12px 18px 11px; transition: transform 180ms ease-out, box-shadow 180ms ease-out, opacity 180ms ease-out; }
.post-card.has-poster { padding-top: 0; }
.post-card-poster { display: block; aspect-ratio: 16 / 9; margin: 0 -24px 22px; overflow: hidden; border-bottom: 1px solid var(--page-line); background: var(--page-soft); }
.post-card-poster img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform 260ms ease-out; }
.post-card:hover .post-card-poster img { transform: scale(1.018); }
.post-card:hover { transform: translateY(-4px); box-shadow: 6px 8px 0 rgba(90,80,188,.1); }
.post-card[hidden] { display: none; }
.post-card .post-tag { color: var(--page-brand); }
.post-card h3 { margin: 26px 0 12px; font: 700 25px/1.13 Inter, "PingFang SC", "Microsoft YaHei", sans-serif; letter-spacing: -.06em; }
.post-card p { margin: 0; color: var(--page-muted); font-size: 14px; line-height: 1.65; }
.post-card .post-date { margin-top: auto; padding-top: 24px; color: #9b96b0; font: 10px var(--page-mono); }

/* Article */
.article-wrap { max-width: 820px; margin: 0 auto; }
.article-wrap h1 { max-width: 800px; margin: 18px 0 20px; font: 800 clamp(42px, 7vw, 78px)/1 Inter, "PingFang SC", "Microsoft YaHei", sans-serif; letter-spacing: -.09em; }
.article-dek { max-width: 660px; color: var(--page-muted); font-size: 19px; line-height: 1.7; }
.article-info { display: flex; gap: 18px; margin-top: 24px; color: var(--page-brand); font: 10px var(--page-mono); }
.article-poster { margin: 38px 0 54px; overflow: hidden; border: 1px solid rgba(83,72,173,.24); border-radius: 18px 12px 20px 11px; background: var(--page-soft); box-shadow: 9px 11px 0 rgba(90,80,188,.12); }
.article-poster img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; }
.article-poster figcaption { padding: 10px 14px; color: var(--page-muted); border-top: 1px solid var(--page-line); background: rgba(255,253,249,.86); font: 10px/1.5 var(--page-mono); letter-spacing: .04em; }
.article-body { margin-top: 72px; }
.article-body h2 { margin: 48px 0 14px; font: 700 30px/1.2 Inter, "PingFang SC", "Microsoft YaHei", sans-serif; letter-spacing: -.06em; }
.article-body p { margin: 0 0 20px; color: #5f5b70; font-size: 17px; line-height: 1.85; }
.article-body blockquote { margin: 42px 0; padding: 20px 24px; color: var(--page-ink); border-left: 2px solid var(--page-coral); background: rgba(238,239,255,.7); font: 700 26px/1.35 Inter, "PingFang SC", "Microsoft YaHei", sans-serif; letter-spacing: -.05em; }

@media (max-width: 860px) {
  .site-header { flex-wrap: wrap; padding: 15px 0; }
  .site-nav { order: 3; width: 100%; margin-left: 0; overflow-x: auto; }
  .site-status { margin-left: auto; }
  .subpage-hero, .featured-post, .statement { grid-template-columns: 1fr; gap: 36px; }
  .featured-art { min-height: 260px; }
  .blog-banner-carousel { width: 100%; height: min(560px, 145vw); min-height: 0; aspect-ratio: auto; }
  .why-sigora-slide { grid-template-columns: 1fr; }
  .why-sigora-slide .featured-art { min-height: 220px; }
  .principle-grid, .post-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .principle-card:nth-child(2), .principle-card:nth-child(3) { transform: none; }
}
@media (max-width: 560px) {
  .site-shell { width: min(100% - 30px, 1240px); }
  .site-logo { width: 150px; }
  .site-status { display: none; }
  .subpage-main { padding-top: 46px; }
  .article-poster { margin: 28px 0 42px; border-radius: 13px 9px 15px 8px; box-shadow: 6px 7px 0 rgba(90,80,188,.1); }
  .subpage-hero { padding: 35px 0 58px; }
  .subpage-hero p { font-size: 16px; }
  .hero-note-card { padding: 22px; }
  .principle-grid, .post-grid, .triad-grid { grid-template-columns: 1fr; }
  .principle-card, .principle-card:nth-child(2), .principle-card:nth-child(3) { min-height: auto; transform: none; }
  .triad-item, .triad-item + .triad-item { padding: 24px 0; border-right: 0; border-bottom: 1px solid var(--page-line); }
  .triad-item:last-child { border-bottom: 0; }
  .site-footer { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  .site-nav a, .page-button, .blog-filter, .post-card { transition: none !important; }
  .post-card:hover { transform: none; }
}