/* ============================================
   Manga109 — Homepage (Japanese palette)
   ============================================ */

:root {
  /* 和色 — soft Japanese palette */
  --bg: #f5efe4;            /* 生成り kinari */
  --bg-soft: #efe7d6;       /* 薄香 usukō */
  --bg-card: #ffffff;
  --bg-washi: #fbf6ea;      /* washi paper */
  --fg: #2a2a2a;            /* 墨 sumi */
  --fg-dim: #5a544a;        /* 憲法黒茶 */
  --fg-muted: #8a8275;      /* 灰茶 */
  --accent: #b7282e;        /* 茜色 akane */
  --accent-soft: #e5989b;   /* 桜鼠 sakura-nezu */
  --accent-2: #d9a62e;      /* 山吹 yamabuki */
  --accent-3: #165e83;      /* 藍色 ai */
  --accent-4: #7b8d42;      /* 抹茶 matcha */
  --border: rgba(42, 42, 42, 0.1);
  --border-hover: rgba(42, 42, 42, 0.25);
  --max: 1200px;
  --pad: clamp(20px, 4vw, 48px);
  --font-jp: "Zen Kaku Gothic New", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --font-jp-sans: "Zen Kaku Gothic New", "Hiragino Sans", "Yu Gothic", sans-serif;
  --font-en: "Space Grotesk", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: "Bebas Neue", "Space Grotesk", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-jp-sans);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  /* subtle washi paper texture */
  background-image:
    radial-gradient(circle at 20% 30%, rgba(183, 40, 46, 0.04), transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(22, 94, 131, 0.04), transparent 40%);
}

a { color: inherit; text-decoration: none; transition: opacity 0.2s; }
a:hover { opacity: 0.7; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad);
}

/* ============================================
   Navigation
   ============================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background: rgba(245, 239, 228, 0.78);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 16px var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.nav-logo {
  font-family: var(--font-en);
  font-size: 22px;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 14px;
}
.logo-sub {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-muted);
  padding-left: 14px;
  border-left: 1px solid var(--border-hover);
  line-height: 1.3;
  white-space: nowrap;
}
@media (max-width: 640px) {
  .logo-sub { display: none; }
}
.logo-mark {
  display: inline-flex;
  align-items: baseline;
  font-family: var(--font-en);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--fg);
}
.logo-accent {
  color: var(--accent);
  margin-left: 2px;
}
.logo-mark-lg { font-size: 48px; }

.nav-menu {
  display: flex;
  gap: 28px;
  font-size: 14px;
  font-family: var(--font-en);
  font-weight: 500;
}
.nav-menu a { color: var(--fg-dim); }
.nav-menu a:hover { color: var(--accent); opacity: 1; }
.nav-lang a {
  border: 1px solid var(--border-hover);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.05em;
}
.nav-lang a:hover { border-color: var(--accent); color: var(--accent); }
.lang-active { color: var(--accent); font-weight: 700; }
.lang-inactive { color: var(--fg-muted); }

.nav-toggle {
  display: none;
  background: none; border: none;
  flex-direction: column; gap: 4px;
  cursor: pointer; padding: 8px;
}
.nav-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--fg);
}

@media (max-width: 820px) {
  .nav-menu {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column;
    background: var(--bg-washi);
    padding: 20px var(--pad);
    border-bottom: 1px solid var(--border);
    transform: translateY(-120%);
    transition: transform 0.3s ease;
  }
  .nav-menu.open { transform: translateY(0); }
  .nav-toggle { display: flex; }
}

/* ============================================
   Hero — with manga cover background
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 120px var(--pad) 80px;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  overflow: hidden;
  background-image: url('asset/background.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.hero-bg::before {
  content: '';
  position: absolute; inset: 0;
  /* soft washi wash over the covers */
  background:
    linear-gradient(180deg,
      rgba(245, 239, 228, 0.82) 0%,
      rgba(245, 239, 228, 0.72) 40%,
      rgba(245, 239, 228, 0.92) 100%);
}
.hero-bg::after {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse at 30% 40%, rgba(183, 40, 46, 0.08), transparent 50%),
    radial-gradient(ellipse at 70% 60%, rgba(22, 94, 131, 0.08), transparent 50%);
}

/* hide old blobs/grid since we use the image now */
.hero-grid, .hero-blob { display: none; }

.hero-content {
  position: relative; z-index: 1;
  max-width: var(--max);
  margin: 0 auto;
  width: 100%;
}
.hero-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 32px;
}
.hero-utokyo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 6px 16px 6px 8px;
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(8px);
  border-radius: 999px;
  border: 1px solid var(--border-hover);
  height: 36px;
}
.hero-utokyo-mark {
  display: inline-block;
  width: 22px; height: 22px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 35%, #e84a4a, #8a1818 70%);
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.9), 0 2px 6px rgba(138, 24, 24, 0.35);
  flex-shrink: 0;
}
.hero-utokyo-text {
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--fg);
  text-transform: uppercase;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0 16px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  color: var(--accent);
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(8px);
  height: 36px;
  white-space: nowrap;
  text-decoration: none;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s, opacity 0.2s;
}
.hero-badge:hover {
  background: var(--accent);
  color: #fff;
  opacity: 1;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(183, 40, 46, 0.25);
}
.hero-badge-arrow {
  font-size: 12px;
  opacity: 0.7;
  letter-spacing: 0;
  transition: transform 0.2s;
}
.hero-badge:hover .hero-badge-arrow { transform: translate(2px, -2px); opacity: 1; }
.hero-title {
  font-family: "Space Grotesk", "Zen Kaku Gothic New", sans-serif;
  font-weight: 700;
  font-size: clamp(80px, 18vw, 240px);
  line-height: 0.85;
  letter-spacing: -0.04em;
  margin-bottom: 40px;
  color: var(--fg);
}
.hero-line {
  display: block;
  opacity: 0;
  transform: translateY(30px);
  animation: slideUp 0.9s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}
.hero-line:nth-child(2) { animation-delay: 0.15s; }
.hero-number {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
@keyframes slideUp {
  to { opacity: 1; transform: translateY(0); }
}
.hero-sub {
  font-family: var(--font-en);
  font-size: clamp(18px, 2.2vw, 22px);
  color: var(--fg);
  max-width: 540px;
  margin-bottom: 12px;
  line-height: 1.5;
}
.hero-sub-ja {
  color: var(--fg-dim);
  font-size: 15px;
  max-width: 540px;
  margin-bottom: 40px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 72px;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 999px;
  font-family: var(--font-en);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.01em;
  transition: transform 0.2s, box-shadow 0.2s, opacity 0.2s, background 0.2s;
  cursor: pointer;
  border: none;
}
.btn:hover { transform: translateY(-2px); opacity: 1; }
.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 24px rgba(183, 40, 46, 0.25);
}
.btn-primary:hover { background: #9b2026; box-shadow: 0 12px 32px rgba(183, 40, 46, 0.35); }
.btn-ghost {
  background: rgba(255, 255, 255, 0.6);
  color: var(--fg);
  border: 1px solid var(--border-hover);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.9); border-color: var(--accent); color: var(--accent); }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 28px 32px;
  padding-top: 32px;
  border-top: 1px solid var(--border-hover);
  max-width: 780px;
}
.stat {
  min-width: 0;
}
.stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(30px, 3.4vw, 44px);
  line-height: 1;
  color: var(--fg);
  margin-bottom: 8px;
  white-space: nowrap;
}
.stat-label {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-muted);
  white-space: nowrap;
}

.scroll-hint {
  position: absolute;
  bottom: 32px; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  z-index: 1;
}
.scroll-hint span {
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--fg-muted);
}
.scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(180deg, var(--fg-muted), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { transform: scaleY(1); opacity: 1; }
  50% { transform: scaleY(0.6); opacity: 0.5; }
}

/* ============================================
   Gallery
   ============================================ */
.gallery {
  padding: 40px 0;
  background: var(--bg-soft);
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.gallery-track {
  display: flex; flex-direction: column; gap: 16px;
}
.gallery-row {
  display: flex; gap: 16px;
  animation: scrollX 60s linear infinite;
  width: max-content;
}
.gallery-row-reverse { animation-direction: reverse; animation-duration: 80s; }
@keyframes scrollX {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
.gallery-tile {
  width: 150px; height: 210px;
  border-radius: 6px;
  flex-shrink: 0;
  background: var(--bg-soft);
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s;
}
.gallery-tile:hover { transform: translateY(-4px); }
.gallery-tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.gallery-tile-meta {
  position: absolute;
  inset: auto 0 0 0;
  padding: 28px 10px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  color: #fff;
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.75));
  opacity: 0;
  transition: opacity 0.3s;
}
.gallery-tile:hover .gallery-tile-meta { opacity: 1; }
.tile-num {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.15em;
  opacity: 0.8;
}
.tile-title {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 12px;
  line-height: 1.25;
  letter-spacing: 0.01em;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
}

/* ============================================
   Sections (shared)
   ============================================ */
.section {
  padding: clamp(80px, 12vw, 140px) 0;
  position: relative;
}
.section-head {
  margin-bottom: 64px;
  max-width: 720px;
}
.section-tag {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.section-title {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: clamp(36px, 5.5vw, 68px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--fg);
}

/* Japanese page: smaller, calmer section titles */
html[lang="ja"] .section-title {
  font-family: var(--font-jp-sans);
  font-size: clamp(22px, 2.8vw, 34px);
  line-height: 1.35;
  letter-spacing: 0.01em;
  font-weight: 700;
}
html[lang="ja"] .cta-left h2 {
  font-family: var(--font-jp-sans);
  font-size: clamp(20px, 2.4vw, 30px);
  line-height: 1.35;
  letter-spacing: 0.01em;
  font-weight: 700;
}
html[lang="ja"] .paper-title {
  font-family: var(--font-jp-sans);
  font-size: clamp(16px, 2vw, 22px);
  line-height: 1.5;
  letter-spacing: 0.01em;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 64px;
  align-items: start;
}
.about-text p {
  font-size: 16px;
  margin-bottom: 20px;
  color: var(--fg-dim);
}
.about-text strong {
  color: var(--fg);
  font-weight: 700;
}
.about-text a {
  color: var(--accent-3);
  border-bottom: 1px solid var(--accent-3);
  transition: opacity 0.2s;
}
.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px;
  position: sticky;
  top: 100px;
  box-shadow: 0 10px 40px rgba(42, 42, 42, 0.06);
}
.card-label {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}
.kv {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 14px 16px;
  font-size: 14px;
  margin-bottom: 28px;
}
.kv dt {
  color: var(--fg-muted);
  font-family: var(--font-en);
  letter-spacing: 0.05em;
}
.kv dd { color: var(--fg); }
.card-cta {
  display: inline-block;
  font-family: var(--font-en);
  font-weight: 600;
  color: var(--accent);
  font-size: 14px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  width: 100%;
}

@media (max-width: 820px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-card { position: static; }
}

/* Reference Paper */
.section-paper { padding: clamp(40px, 6vw, 70px) 0; }
.paper-card {
  background:
    linear-gradient(135deg, rgba(22, 94, 131, 0.06), rgba(183, 40, 46, 0.05)),
    var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: clamp(32px, 5vw, 56px);
  display: grid;
  grid-template-columns: 1.4fr auto;
  gap: 48px;
  align-items: center;
  box-shadow: 0 14px 50px rgba(42, 42, 42, 0.06);
  position: relative;
  overflow: hidden;
}
.paper-card::before {
  content: '';
  position: absolute;
  width: 280px; height: 280px;
  background: var(--accent-2);
  border-radius: 50%;
  filter: blur(110px);
  opacity: 0.14;
  top: -80px; right: -80px;
  z-index: 0;
}
.paper-left { position: relative; z-index: 1; }
.paper-title {
  font-family: var(--font-en);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--fg);
  margin: 14px 0 14px;
}
.paper-authors {
  font-size: 14px;
  color: var(--fg-dim);
  margin-bottom: 6px;
  line-height: 1.6;
}
.paper-venue {
  font-size: 13px;
  color: var(--fg-muted);
  font-style: italic;
  margin-bottom: 20px;
}
.paper-links { display: flex; gap: 12px; }
.paper-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-3);
  padding: 8px 14px;
  border: 1px solid var(--accent-3);
  border-radius: 999px;
  transition: all 0.2s;
}
.paper-link:hover {
  background: var(--accent-3);
  color: #fff;
  opacity: 1;
}

.paper-cite {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  padding: 28px 36px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  position: relative;
  z-index: 1;
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
  min-width: 220px;
}
.paper-cite:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: 0 16px 40px rgba(183, 40, 46, 0.12);
  opacity: 1;
}
.paper-cite-num {
  font-family: var(--font-display);
  font-size: clamp(56px, 7vw, 84px);
  line-height: 1;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: inline-flex;
  align-items: flex-start;
}
.paper-cite-plus {
  font-size: 0.5em;
  margin-top: 0.2em;
  margin-left: 4px;
}
.paper-cite-label {
  font-family: var(--font-en);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg);
  line-height: 1.5;
}
.paper-cite-sub {
  font-weight: 500;
  color: var(--fg-muted);
  font-size: 11px;
  letter-spacing: 0.1em;
}

@media (max-width: 820px) {
  .paper-card { grid-template-columns: 1fr; gap: 32px; }
  .paper-cite { align-self: flex-start; }
}

/* Us / Team */
.section-us { position: relative; }
.team-intro {
  max-width: 780px;
  margin: -32px 0 56px;
  color: var(--fg-dim);
  font-size: 16px;
  line-height: 1.8;
}
.team-intro p { margin-bottom: 10px; }
.team-intro a {
  color: var(--accent-3);
  border-bottom: 1px solid var(--accent-3);
  transition: opacity 0.2s;
}
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
}
.team-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px 20px 24px;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
  position: relative;
  overflow: hidden;
  text-align: center;
}
.team-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-soft);
  box-shadow: 0 14px 40px rgba(42, 42, 42, 0.08);
}
.team-photo {
  width: 108px;
  height: 108px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto 18px;
  background: var(--bg-soft);
  position: relative;
  box-shadow: 0 4px 16px rgba(42, 42, 42, 0.08);
}
.team-photo::after {
  content: '';
  position: absolute; inset: 0;
  box-shadow: inset 0 0 0 1px rgba(42, 42, 42, 0.08);
  border-radius: inherit;
  pointer-events: none;
}
.team-photo img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.team-card:hover .team-photo img { transform: scale(1.06); }
.team-card h3 {
  font-family: var(--font-en);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--fg);
  margin-bottom: 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  align-items: center;
}
.team-name-en {
  font-family: var(--font-jp-sans);
  font-size: 12px;
  font-weight: 500;
  color: var(--fg-muted);
  letter-spacing: 0.02em;
}
.team-role {
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.team-affil {
  font-size: 12px;
  color: var(--fg-dim);
  line-height: 1.5;
  margin-bottom: 14px;
}
.team-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-3);
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: all 0.2s;
}
.team-link:hover {
  border-color: var(--accent-3);
  background: var(--accent-3);
  color: #fff;
  opacity: 1;
}

/* Features */
.section-features {
  background: var(--bg-washi);
  position: relative;
}
.section-features::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(42, 42, 42, 0.06) 1px, transparent 0);
  background-size: 24px 24px;
  opacity: 0.5;
  pointer-events: none;
}
.section-features .container { position: relative; z-index: 1; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px 28px;
  position: relative;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s;
}
.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-soft);
  box-shadow: 0 14px 40px rgba(42, 42, 42, 0.08);
}
.feature-card:hover::before { transform: scaleX(1); }

.feature-num {
  font-family: var(--font-display);
  font-size: 48px;
  color: var(--accent-soft);
  line-height: 1;
  margin-bottom: 24px;
}
.feature-card h3 {
  font-family: var(--font-en);
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
  color: var(--fg);
}
.feature-card p {
  font-size: 14px;
  color: var(--fg-dim);
  line-height: 1.6;
  margin-bottom: 20px;
}
.feature-pill {
  position: absolute;
  top: 22px;
  right: 22px;
  display: inline-block;
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 3px 10px;
  border: 1px solid var(--border-hover);
  border-radius: 999px;
  color: var(--fg-dim);
  background: var(--bg);
  z-index: 2;
}

/* Feature card expandable BibTeX */
.feature-card-expandable { display: flex; flex-direction: column; }
.feature-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  margin-top: auto;
  flex-wrap: wrap;
}
.feature-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: nowrap;
  justify-content: flex-end;
  flex-shrink: 1;
  min-width: 0;
}
.feature-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 6px 12px;
  border: 1px solid var(--border-hover);
  border-radius: 999px;
  background: transparent;
  color: var(--fg-dim);
  cursor: pointer;
  transition: all 0.2s;
}
.feature-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.feature-toggle-arrow { transition: transform 0.25s; }
.feature-toggle[aria-expanded="true"] {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.feature-toggle[aria-expanded="true"] .feature-toggle-arrow {
  transform: rotate(180deg);
}
.feature-bib {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px dashed var(--border-hover);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.feature-bib[hidden] { display: none; }

/* Citation entry (shared by feature-bib) */
.citation-entry {
  background: var(--bg-washi);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  position: relative;
}
.citation-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.citation-venue {
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-3);
  font-weight: 700;
}
.citation-actions {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}
.paper-btn {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 700;
  padding: 4px 10px;
  border: 1px solid var(--accent-3);
  border-radius: 999px;
  color: var(--accent-3);
  background: var(--bg);
  transition: all 0.2s;
  flex-shrink: 0;
}
.paper-btn:hover {
  background: var(--accent-3);
  color: #fff;
  opacity: 1;
}
.paper-stack {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  align-items: stretch;
}
.paper-stack .paper-btn { width: 100%; justify-content: center; }
/* Segmented Paper group (e.g., Manga109 with 2 papers) */
.paper-group {
  display: inline-flex;
  align-items: stretch;
  border: 1px solid var(--accent-3);
  border-radius: 999px;
  overflow: hidden;
  background: var(--bg);
  flex-shrink: 0;
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 700;
}
.paper-seg {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  color: var(--accent-3);
  border-left: 1px solid var(--accent-3);
  transition: background 0.2s, color 0.2s;
}
.paper-seg.paper-seg-first { border-left: none; }
.paper-seg:hover {
  background: var(--accent-3);
  color: #fff;
  opacity: 1;
}
.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-en);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 700;
  padding: 4px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg);
  color: var(--fg-dim);
  cursor: pointer;
  transition: all 0.2s;
  flex-shrink: 0;
}
.copy-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.copy-btn.copied {
  border-color: var(--accent-4);
  color: var(--accent-4);
  background: rgba(123, 141, 66, 0.08);
}
.citation-entry pre {
  margin: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  overflow-x: auto;
  font-size: 11px;
  line-height: 1.6;
  color: var(--fg);
}
.citation-entry code {
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 11px;
  color: var(--fg);
  white-space: pre;
}

/* News */
.news-list {
  max-width: 860px;
}
.news-list li {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
  transition: padding-left 0.3s;
  align-items: baseline;
}
.news-list li:hover {
  padding-left: 12px;
}
.news-list time {
  font-family: var(--font-en);
  font-size: 14px;
  letter-spacing: 0.05em;
  color: var(--accent);
  font-weight: 600;
}
.news-list p {
  font-size: 15px;
  color: var(--fg-dim);
}
.news-list a {
  color: var(--accent-3);
  border-bottom: 1px solid var(--accent-3);
}

@media (max-width: 600px) {
  .news-list li { grid-template-columns: 1fr; gap: 6px; }
}

/* Explore page */
.section-explore { padding-top: 48px; }
.explore-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
}
.explore-search {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  min-width: 240px;
  padding: 10px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--fg-muted);
  transition: border-color 0.2s;
}
.explore-search:focus-within { border-color: var(--accent); color: var(--accent); }
.explore-search input {
  border: none;
  background: transparent;
  outline: none;
  flex: 1;
  font: inherit;
  color: var(--fg);
}
.explore-filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.explore-filter-group select {
  font: inherit;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--bg);
  color: var(--fg);
  cursor: pointer;
  transition: border-color 0.2s;
}
.explore-filter-group select:hover,
.explore-filter-group select:focus { border-color: var(--accent); outline: none; }
.chk {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--fg-dim);
  cursor: pointer;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: all 0.2s;
}
.chk:hover { border-color: var(--accent-soft); }
.chk input { accent-color: var(--accent); }
.explore-count {
  margin-left: auto;
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--fg-muted);
  letter-spacing: 0.04em;
}

.explore-table-wrap {
  overflow-x: auto;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
}
.explore-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  min-width: 900px;
}
.explore-table thead th {
  position: sticky;
  top: 0;
  background: var(--bg-soft);
  padding: 14px 12px;
  text-align: left;
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-dim);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  user-select: none;
}
.explore-table th.sortable { cursor: pointer; transition: color 0.2s; }
.explore-table th.sortable:hover { color: var(--accent); }
.explore-table th.sortable::after {
  content: ' ↕';
  opacity: 0.3;
  font-size: 10px;
}
.explore-table th.sort-asc::after { content: ' ↑'; opacity: 1; color: var(--accent); }
.explore-table th.sort-desc::after { content: ' ↓'; opacity: 1; color: var(--accent); }
.explore-table tbody tr {
  transition: background 0.15s;
  border-bottom: 1px solid var(--border);
}
.explore-table tbody tr:last-child { border-bottom: none; }
.explore-table tbody tr:hover { background: var(--bg-soft); }
.explore-table td {
  padding: 12px;
  vertical-align: middle;
  color: var(--fg);
}
.explore-table .num-col {
  text-align: right;
  font-family: var(--font-display);
  color: var(--fg-muted);
  font-size: 14px;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.explore-table .cover-col { width: 60px; }
.explore-table .cover-cell {
  width: 60px;
  padding: 6px;
}
.explore-table .cover-cell img {
  width: 48px;
  height: 68px;
  object-fit: cover;
  border-radius: 4px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
  display: block;
  transition: transform 0.25s;
}
.explore-table tbody tr:hover .cover-cell img { transform: scale(1.06); }
.explore-table .title-col { font-weight: 600; min-width: 200px; }
.explore-table .title-col a {
  color: var(--fg);
  border-bottom: 1px dotted var(--border-hover);
  transition: color 0.2s, border-color 0.2s;
}
.explore-table .title-col a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
  opacity: 1;
}
.explore-table .folder-col code {
  font-family: "SF Mono", Menlo, monospace;
  font-size: 11px;
  color: var(--accent-3);
  background: var(--bg-washi);
  padding: 2px 6px;
  border-radius: 4px;
  white-space: nowrap;
}
.pill {
  display: inline-block;
  font-size: 11px;
  padding: 3px 10px;
  border-radius: 999px;
  white-space: nowrap;
  border: 1px solid transparent;
}
.pill-era { background: rgba(22, 94, 131, 0.1); color: var(--accent-3); }
.pill-aud { background: rgba(183, 40, 46, 0.08); color: var(--accent); }
.pill-gen { background: rgba(123, 141, 66, 0.12); color: var(--accent-4); }
.badge-s {
  display: inline-block;
  width: 22px; height: 22px;
  line-height: 22px;
  text-align: center;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  font-size: 12px;
  font-weight: 700;
}
.badge-no { color: var(--fg-muted); }
.empty-state {
  padding: 40px;
  text-align: center;
  color: var(--fg-muted);
  font-size: 14px;
}

/* Subpage hero (e.g., Publications page) */
.subpage-hero {
  padding: 140px var(--pad) 60px;
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(ellipse at 20% 30%, rgba(183, 40, 46, 0.05), transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(22, 94, 131, 0.05), transparent 50%),
    var(--bg);
}
.subpage-hero .container { padding: 0; }
.subpage-title {
  font-family: var(--font-en);
  font-size: clamp(42px, 6vw, 72px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin: 14px 0 18px;
}
.nav-menu .nav-active {
  color: var(--accent);
  position: relative;
}
.nav-menu .nav-active::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  bottom: -6px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

/* Publications */
.section-pubs {
  background: var(--bg);
  position: relative;
}
.pub-intro {
  max-width: 780px;
  margin: 0 0 48px;
  color: var(--fg-dim);
  font-size: 15px;
}
.pub-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.pub-item {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 28px;
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
  transition: padding-left 0.25s;
  align-items: start;
}
.pub-item:hover { padding-left: 10px; }
.pub-item:last-child { border-bottom: none; }
.pub-year {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 0.04em;
  color: var(--accent);
  line-height: 1;
  padding-top: 4px;
}
.pub-title {
  font-family: var(--font-en);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--fg);
  margin-bottom: 6px;
  letter-spacing: -0.005em;
}
.pub-title a {
  color: var(--fg);
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.pub-title a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
  opacity: 1;
}
.pub-authors {
  font-size: 13px;
  color: var(--fg-dim);
  line-height: 1.6;
  margin-bottom: 4px;
}
.pub-venue {
  font-size: 12px;
  color: var(--fg-muted);
  font-style: italic;
  line-height: 1.6;
}

@media (max-width: 600px) {
  .pub-item { grid-template-columns: 1fr; gap: 6px; }
  .pub-year { padding-top: 0; }
}

/* License */
.section-license { background: var(--bg-washi); }
.license-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: clamp(32px, 5vw, 56px);
  box-shadow: 0 10px 40px rgba(42, 42, 42, 0.05);
  max-width: 960px;
}
.license-head { margin-bottom: 32px; }
.license-badge {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
  padding: 5px 12px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: rgba(183, 40, 46, 0.05);
  margin-bottom: 20px;
}
.license-badge-s {
  color: var(--accent-3);
  border-color: var(--accent-3);
  background: rgba(22, 94, 131, 0.06);
}
.license-card + .license-card { margin-top: 28px; }
.license-lede {
  font-size: 15px;
  line-height: 1.75;
  color: var(--fg-dim);
}
.license-lede strong { color: var(--fg); font-weight: 700; }

.license-section {
  padding-top: 24px;
  margin-top: 24px;
  border-top: 1px solid var(--border);
}
.license-section h4 {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-3);
  font-weight: 700;
  margin-bottom: 14px;
}
.license-section p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--fg-dim);
  margin-bottom: 10px;
}
.license-section p strong { color: var(--fg); font-weight: 700; }

.license-list,
.license-rules {
  font-size: 14px;
  line-height: 1.7;
  color: var(--fg-dim);
  padding-left: 0;
}
.license-list li,
.license-rules li {
  position: relative;
  padding: 8px 0 8px 28px;
  border-bottom: 1px dashed var(--border);
}
.license-list li:last-child,
.license-rules li:last-child { border-bottom: none; }
.license-list li strong,
.license-rules li strong { color: var(--fg); font-weight: 700; }
.license-list li::before {
  content: '✓';
  position: absolute;
  left: 6px; top: 8px;
  color: var(--accent-4);
  font-weight: 700;
}
.license-rules {
  counter-reset: license-rule;
}
.license-rules li { counter-increment: license-rule; }
.license-rules li::before {
  content: counter(license-rule);
  position: absolute;
  left: 0; top: 8px;
  width: 20px; height: 20px;
  line-height: 20px;
  text-align: center;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
}

/* CTA */
.section-cta {
  padding-bottom: clamp(60px, 10vw, 100px);
}
.cta-card {
  background:
    linear-gradient(135deg, rgba(183, 40, 46, 0.06), rgba(22, 94, 131, 0.06)),
    var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: clamp(40px, 6vw, 72px);
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 56px;
  align-items: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(42, 42, 42, 0.06);
}
.cta-card::before {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  background: var(--accent);
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.12;
  top: -100px; right: -100px;
  z-index: 0;
}
.cta-left, .cta-right { position: relative; z-index: 1; }
.cta-left h2 {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: clamp(28px, 3.5vw, 44px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 12px 0 16px;
  color: var(--fg);
}
.cta-left p { color: var(--fg-dim); }
.cta-right {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.cta-btn {
  display: block;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 22px 28px;
  transition: all 0.25s;
  position: relative;
}
.cta-btn:hover {
  background: #fff;
  border-color: var(--accent);
  transform: translateX(6px);
  opacity: 1;
  box-shadow: 0 8px 24px rgba(183, 40, 46, 0.08);
}
.cta-btn::after {
  content: '→';
  position: absolute;
  right: 28px; top: 50%;
  transform: translateY(-50%);
  font-size: 20px;
  color: var(--accent);
  transition: transform 0.25s;
}
.cta-btn:hover::after { transform: translateY(-50%) translateX(4px); }
.cta-btn-title {
  font-family: var(--font-en);
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--fg);
}
.cta-btn-desc {
  font-size: 13px;
  color: var(--fg-muted);
}

@media (max-width: 820px) {
  .cta-card { grid-template-columns: 1fr; gap: 40px; }
}

/* Acknowledgement */
.section-ack {
  padding: clamp(40px, 6vw, 70px) 0 clamp(30px, 4vw, 50px);
}
.ack-card {
  max-width: 860px;
  margin: 0 auto;
  padding: 32px clamp(24px, 4vw, 48px);
  background: var(--bg-washi);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-2);
  border-radius: 14px;
  text-align: left;
}
.ack-card .section-tag { margin-bottom: 12px; }
.ack-card p {
  font-size: 14px;
  line-height: 1.85;
  color: var(--fg-dim);
}
.ack-card strong { color: var(--fg); font-weight: 700; }

/* ============================================
   Footer
   ============================================ */
.footer {
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
  padding: 72px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 56px;
}
.footer-brand p {
  color: var(--fg-muted);
  font-size: 14px;
  margin-top: 16px;
}
.footer-utokyo {
  margin-top: 18px !important;
  padding-left: 14px;
  border-left: 2px solid var(--accent);
  font-size: 13px !important;
  line-height: 1.55;
}
.footer-utokyo strong {
  font-family: var(--font-en);
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--fg);
  font-size: 14px;
}
.footer-utokyo span {
  color: var(--fg-muted);
  font-size: 12px;
}
.footer-tag {
  margin-top: 12px !important;
  font-size: 12px !important;
  color: var(--fg-muted);
  letter-spacing: 0.02em;
}
.footer-col h4 {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fg);
  margin-bottom: 18px;
}
.footer-col ul li {
  margin-bottom: 10px;
  font-size: 14px;
}
.footer-col a { color: var(--fg-dim); }
.footer-col a:hover { color: var(--accent); opacity: 1; }
.footer-contact {
  color: var(--fg-dim);
  font-size: 13px;
  line-height: 1.7;
}
.mono {
  font-family: "SF Mono", Menlo, monospace;
  color: var(--accent-3);
  font-size: 12px;
}
.footer-legacy {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 20px;
  margin-bottom: 24px;
  background: var(--bg-washi);
  border: 1px dashed var(--border-hover);
  border-radius: 10px;
  font-size: 13px;
  flex-wrap: wrap;
}
.legacy-label {
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-muted);
  font-weight: 600;
}
.footer-legacy a {
  color: var(--accent-3);
  font-family: "SF Mono", Menlo, monospace;
  font-size: 12px;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}
.footer-legacy a:hover { border-bottom-color: var(--accent-3); opacity: 1; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--fg-muted);
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom a {
  color: var(--fg-dim);
  border-bottom: 1px solid var(--border-hover);
}

@media (max-width: 820px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 500px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* Annotations subpage */
.section-anno,
.section-anno-stats,
.section-anno-xml {
  background: var(--bg);
}
.section-anno-stats { background: var(--bg-soft); }
.anno-hero-fig {
  margin: 0 auto 56px;
  max-width: 920px;
  text-align: center;
}
.anno-hero-fig img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: 0 24px 48px -24px rgba(0, 0, 0, 0.18);
}
.anno-hero-fig figcaption {
  margin-top: 14px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--fg-muted);
}
.anno-lead {
  max-width: 820px;
  color: var(--fg-dim);
  font-size: 15px;
  line-height: 1.85;
  margin: 0 0 28px;
}
.anno-lead code {
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 13px;
  background: var(--bg-washi);
  color: var(--accent-3);
  padding: 2px 7px;
  border-radius: 4px;
}
.anno-lead-muted {
  font-size: 13px;
  color: var(--fg-muted);
}
.anno-tree {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 32px;
  margin: 0 0 32px;
  max-width: 820px;
  font-family: var(--font-en);
  font-size: 14px;
}
.anno-tree ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.anno-tree > ul > li > ul { padding-left: 24px; margin-top: 10px; }
.anno-tree ul ul ul { padding-left: 24px; margin-top: 4px; }
.anno-tree li {
  position: relative;
  padding: 4px 0;
  color: var(--fg);
}
.anno-tree ul ul li::before {
  content: '';
  position: absolute;
  left: -14px;
  top: 14px;
  width: 10px;
  height: 1px;
  background: var(--border-hover);
}
.anno-tree ul ul li::after {
  content: '';
  position: absolute;
  left: -14px;
  top: 0;
  bottom: 50%;
  width: 1px;
  background: var(--border-hover);
}
.anno-tree ul ul li:last-child::after { bottom: calc(50% - 0px); }
.anno-tree code {
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  background: transparent;
  padding: 0;
}
.anno-tree-desc {
  margin-left: 12px;
  color: var(--fg-muted);
  font-family: var(--font-jp-sans);
  font-size: 13px;
}
.anno-tree-ellipsis {
  color: var(--fg-muted);
  letter-spacing: 0.2em;
}

.anno-types {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin: 0 0 32px;
}
.anno-type {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px 22px 22px;
  transition: border-color 0.2s, transform 0.2s;
  position: relative;
}
.anno-type:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.anno-type-num {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--fg-muted);
  margin-bottom: 10px;
}
.anno-type h4 {
  margin: 0 0 10px;
  font-size: 18px;
}
.anno-type h4 code {
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 17px;
  font-weight: 700;
  color: var(--accent);
  background: transparent;
  padding: 0;
}
.anno-type p {
  margin: 0 0 10px;
  font-size: 14px;
  color: var(--fg);
  line-height: 1.65;
}
.anno-type-extra {
  display: block;
  font-size: 12px;
  color: var(--fg-muted);
  line-height: 1.55;
  padding-top: 10px;
  border-top: 1px dashed var(--border);
}
@media (max-width: 900px) {
  .anno-types { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .anno-types { grid-template-columns: 1fr; }
}

.anno-table-wrap {
  overflow-x: auto;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.anno-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  min-width: 720px;
}
.anno-table thead th {
  padding: 16px 14px;
  text-align: left;
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-dim);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.anno-table th.num,
.anno-table td.num {
  text-align: right;
  font-family: var(--font-en);
  font-variant-numeric: tabular-nums;
}
.anno-table tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background 0.15s;
}
.anno-table tbody tr:last-child { border-bottom: none; }
.anno-table tbody tr:hover { background: var(--bg-soft); }
.anno-table td {
  padding: 14px;
  color: var(--fg);
  white-space: nowrap;
}
.anno-ver {
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-weight: 600;
  color: var(--fg);
}
.anno-latest {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 8px;
  font-family: var(--font-en);
  font-size: 10px;
  font-style: normal;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(183, 40, 46, 0.08);
  border-radius: 10px;
}

.anno-code {
  margin: 0;
  padding: 24px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow-x: auto;
  font-size: 12px;
  line-height: 1.7;
  color: var(--fg);
}
.anno-code code {
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: 12px;
  color: var(--fg);
  white-space: pre;
}