@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&family=Space+Grotesk:wght@600;700&display=swap');

:root {
  --niao-navy-950: #0a1229;
  --niao-navy-900: #101b3d;
  --niao-navy-800: #16264d;
  --niao-green-600: #16a34a;
  --niao-green-400: #4ade80;
  --niao-feather-blue: #93beea;
  --bg-light: #f7f8fb;
  --white: #ffffff;
  --slate-600: #56607a;
  --slate-400: #98a2c0;
  --slate-300: #c5cce0;
  --slate-200: #e2e6f0;
  --border-light: #e2e6f0;
  --border-dark: rgba(255, 255, 255, 0.1);
  --shadow-sm: 0 1px 3px rgba(10, 18, 41, 0.06);
  --shadow-md: 0 8px 30px rgba(10, 18, 41, 0.08);
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --font-sans: 'Inter', system-ui, sans-serif;
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  --ok: #16a34a;
  --warn: #d97706;
  --err: #dc2626;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  color: var(--niao-navy-800);
  background: var(--white);
  line-height: 1.65;
  min-height: 100vh;
}

a { color: var(--niao-green-600); text-decoration: none; }
a:hover { text-decoration: underline; }

.font-display { font-family: var(--font-display); }
.font-mono { font-family: var(--font-mono); }

.text-display-xl {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.text-display-lg {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.015em;
}

.text-display-md {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  font-weight: 600;
  line-height: 1.25;
}

.text-heading {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.35;
}

.text-body { font-size: 1rem; line-height: 1.65; }
.text-caption { font-size: 0.875rem; line-height: 1.5; }
.text-xs { font-size: 0.75rem; }

*:focus-visible {
  outline: 2px solid var(--niao-green-600);
  outline-offset: 2px;
}

.section-pad {
  padding-block: clamp(3rem, 7vw, 5rem);
  padding-inline: clamp(1rem, 4vw, 2rem);
}

.container {
  max-width: 72rem;
  margin-inline: auto;
}

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  background: rgba(10, 18, 41, 0.85);
  backdrop-filter: blur(12px);
}

.site-header .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 72rem;
  margin-inline: auto;
  padding: 0.75rem clamp(1rem, 4vw, 1.5rem);
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: inherit;
}

.brand-link:hover { text-decoration: none; }

.brand-logo {
  height: 2.25rem;
  width: auto;
  flex-shrink: 0;
  display: block;
}

.feather-mark {
  display: block;
}

.feather-mark-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-lg);
  background: var(--niao-navy-950);
  margin-bottom: 0.75rem;
}

.brand-feather {
  height: 2rem;
  width: auto;
  flex-shrink: 0;
}

.brand-wordmark {
  height: 1.35rem;
  width: auto;
}

.brand-feather-header {
  height: 2rem;
  width: auto;
  flex-shrink: 0;
  display: block;
}

.brand-wordmark-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--niao-green-600);
}

.site-nav {
  display: none;
  align-items: center;
  gap: 1.5rem;
}

.site-nav a {
  color: var(--slate-400);
  font-size: 0.875rem;
  text-decoration: none;
  transition: color 0.2s;
}

.site-nav a:hover { color: var(--niao-green-400); text-decoration: none; }

.header-cta {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  background: var(--niao-green-600);
  color: var(--white);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.2s;
  white-space: nowrap;
}

.header-cta:hover {
  background: rgba(22, 163, 74, 0.9);
  text-decoration: none;
  color: var(--white);
}

.header-cta.ghost {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--white);
}

.header-cta.ghost:hover { background: rgba(255, 255, 255, 0.05); }

@media (min-width: 768px) {
  .site-nav { display: flex; }
}

/* ── Hero (dark) ── */
.hero-dark {
  background: var(--niao-navy-950);
  color: var(--white);
  text-align: center;
}

.hero-dark .feather-hero {
  height: auto;
  width: clamp(5rem, 14vw, 7.5rem);
  margin-inline: auto;
  margin-bottom: 1rem;
  filter: drop-shadow(0 12px 30px rgba(147, 190, 234, 0.45));
  object-fit: contain;
}

.hero-eyebrow {
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--niao-green-400);
  margin-bottom: 0.75rem;
}

.hero-sub {
  color: var(--slate-400);
  max-width: 36rem;
  margin-inline: auto;
  margin-top: 1rem;
}

.version-badge {
  display: inline-block;
  margin-top: 1.25rem;
  padding: 0.3rem 0.85rem;
  border-radius: 999px;
  background: rgba(22, 163, 74, 0.15);
  color: var(--niao-green-400);
  font-size: 0.8rem;
  font-weight: 600;
  font-family: var(--font-mono);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-top: 1.75rem;
}

/* ── Sections ── */
.section-light { background: var(--bg-light); }
.section-dark { background: var(--niao-navy-900); color: var(--white); }
.section-darker { background: var(--niao-navy-950); color: var(--white); }

.section-head {
  margin-bottom: 1.5rem;
}

.section-head.center { text-align: center; }

.section-head .eyebrow {
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--niao-green-600);
  margin-bottom: 0.5rem;
}

.section-dark .section-head .eyebrow,
.section-darker .section-head .eyebrow { color: var(--niao-green-400); }

.section-head p { color: var(--slate-600); margin-top: 0.5rem; }
.section-dark .section-head p,
.section-darker .section-head p { color: var(--slate-400); }

.section-head-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.7rem 1.25rem;
  border-radius: 8px;
  font-weight: 500;
  font-size: 0.875rem;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s, transform 0.15s, box-shadow 0.15s;
  font-family: inherit;
}

.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--niao-green-600); color: var(--white); }
.btn-primary:hover { background: rgba(22, 163, 74, 0.9); color: var(--white); }
.btn-secondary {
  background: var(--white);
  color: var(--niao-navy-800);
  border: 1px solid var(--border-light);
}
.btn-secondary:hover { background: var(--bg-light); color: var(--niao-navy-800); }
.btn-ghost {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.2);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.05); color: var(--white); }
.btn-sm { padding: 0.45rem 0.85rem; font-size: 0.8rem; }
.btn-secondary-dark {
  background: rgba(255, 255, 255, 0.06);
  color: var(--white);
  border: 1px solid var(--border-dark);
}
.btn-secondary-dark:hover { background: rgba(255, 255, 255, 0.1); color: var(--white); }
.btn-warn { background: var(--warn); color: var(--white); }
.btn-danger { background: var(--err); color: var(--white); }

/* ── Cards ── */
.card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.card-dark {
  background: var(--niao-navy-950);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  color: var(--white);
}

.card:hover { box-shadow: var(--shadow-md); }

.lib-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 1.25rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.lib-card:hover {
  border-color: rgba(22, 163, 74, 0.3);
  box-shadow: var(--shadow-md);
}

.lib-card h3 {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--niao-navy-800);
}

.lib-card p {
  color: var(--slate-600);
  font-size: 0.875rem;
  margin-top: 0.35rem;
  flex: 1;
}

/* ── Pills / badges ── */
.pill {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.pill-green { background: rgba(22, 163, 74, 0.12); color: var(--niao-green-600); }
.pill-blue { background: rgba(147, 190, 234, 0.15); color: #5a8fc4; }
.pill-muted { background: var(--bg-light); color: var(--slate-600); border: 1px solid var(--border-light); }
.pill-warn { background: rgba(217, 119, 6, 0.12); color: var(--warn); }
.pill-err { background: rgba(220, 38, 38, 0.12); color: var(--err); }
.pill-active { background: var(--niao-green-600); color: var(--white); }

.pill-row { display: flex; flex-wrap: wrap; gap: 0.35rem; margin: 0.5rem 0 0.75rem; }

/* ── Grids ── */
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1rem; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 0.85rem; }

/* ── Tabs ── */
.tabs {
  display: flex;
  gap: 0.35rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.tab {
  padding: 0.5rem 0.9rem;
  border-radius: 8px;
  border: 1px solid var(--border-light);
  background: transparent;
  color: var(--slate-600);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.15s;
}

.tab.active {
  background: rgba(22, 163, 74, 0.1);
  color: var(--niao-green-600);
  border-color: rgba(22, 163, 74, 0.35);
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── Command blocks ── */
.cmd-block {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  background: var(--niao-navy-900);
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

.cmd-block code { color: var(--white); word-break: break-all; }
.cmd-block .prompt { color: var(--niao-green-600); }

.copy-btn {
  flex-shrink: 0;
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  border: 1px solid var(--border-dark);
  background: rgba(255, 255, 255, 0.06);
  color: var(--slate-400);
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: inherit;
  transition: color 0.15s, background 0.15s;
}

.copy-btn:hover { color: var(--white); background: rgba(255, 255, 255, 0.1); }

.copy-row { margin-top: 0.5rem; }

/* ── Form elements ── */
label.field-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--slate-600);
  margin: 0.75rem 0 0.35rem;
}

input, textarea, select {
  width: 100%;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  background: var(--white);
  color: var(--niao-navy-800);
  font-family: inherit;
  font-size: 0.9rem;
  transition: border-color 0.15s;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--niao-green-600);
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.12);
}

.form-dark input,
.form-dark textarea,
.form-dark select {
  background: var(--niao-navy-950);
  border-color: var(--border-dark);
  color: var(--white);
}

.search-input {
  max-width: 320px;
  padding: 0.6rem 0.85rem;
}

.row { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.row > * { flex: 1; min-width: 140px; }

/* ── Platform grid ── */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 0.25rem;
}

@media (min-width: 900px) {
  .platform-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1200px) {
  .platform-grid {
    grid-template-columns: repeat(5, 1fr);
  }
}

.platform {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.35rem 1rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  text-align: center;
  background: var(--white);
  min-height: 15rem;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.platform:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.platform-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 12px;
  color: var(--niao-green-600);
  background: transparent;
  border: 1.5px solid rgba(22, 163, 74, 0.38);
  margin-bottom: 0.75rem;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.platform:hover .platform-icon {
  background: rgba(22, 163, 74, 0.06);
  border-color: var(--niao-green-600);
  color: #15803d;
}

.platform-icon .os-icon {
  width: 1.65rem;
  height: 1.65rem;
  display: block;
}

.platform-icon-windows,
.platform-icon-linux,
.platform-icon-macos {
  color: var(--niao-green-600);
  background: transparent;
  border-color: rgba(22, 163, 74, 0.38);
}

.platform strong {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.95rem;
  font-family: var(--font-display);
  color: var(--niao-navy-800);
}

.platform-desc {
  color: var(--slate-600);
  font-size: 0.78rem;
  display: block;
  margin-bottom: 1rem;
  min-height: 2.4em;
}

.platform-btns {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  align-items: center;
  width: 100%;
  margin-top: auto;
}

.btn-dl-archive {
  width: 100%;
  max-width: 200px;
  background: transparent;
  color: var(--niao-green-600);
  border: 1.5px solid rgba(22, 163, 74, 0.42);
}

.btn-dl-archive:hover {
  background: rgba(22, 163, 74, 0.06);
  color: #15803d;
  border-color: var(--niao-green-600);
}

.btn-install .dl-label,
.btn-dl-archive .dl-label {
  white-space: nowrap;
}

.dl-size {
  font-size: 0.72rem;
  font-weight: 500;
  opacity: 0.82;
  margin-left: 0.15rem;
}

.btn-dl-archive .dl-size {
  opacity: 0.75;
}

.platform-recommended {
  border-color: var(--niao-green-600);
  box-shadow: 0 0 0 1px rgba(22, 163, 74, 0.12), var(--shadow-sm);
  background: linear-gradient(180deg, rgba(22, 163, 74, 0.04) 0%, var(--white) 100%);
}

.platform-recommended .platform-icon {
  color: var(--niao-green-600);
  background: rgba(22, 163, 74, 0.05);
  border-color: var(--niao-green-600);
}

.recommended-badge {
  display: inline-block;
  margin-bottom: 0.5rem;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  background: rgba(22, 163, 74, 0.12);
  color: var(--niao-green-600);
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.btn-install {
  width: 100%;
  max-width: 200px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(22, 163, 74, 0.3);
  animation: install-glow 2.4s ease-in-out infinite;
}

.btn-install::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 40%, rgba(255, 255, 255, 0.22) 50%, transparent 60%);
  transform: translateX(-120%);
  animation: install-shine 3s ease-in-out infinite;
}

.btn-install:hover {
  animation: none;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(22, 163, 74, 0.45);
}

.btn-install:hover::after {
  animation: none;
}

.btn-install .dl-arrow {
  display: inline-block;
  transition: transform 0.2s ease;
}

.btn-install:hover .dl-arrow {
  animation: dl-bounce 0.6s ease infinite;
}

@keyframes install-glow {
  0%, 100% { box-shadow: 0 4px 16px rgba(22, 163, 74, 0.28); }
  50% { box-shadow: 0 6px 22px rgba(22, 163, 74, 0.48); }
}

@keyframes install-shine {
  0%, 70%, 100% { transform: translateX(-120%); }
  85% { transform: translateX(120%); }
}

@keyframes dl-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(3px); }
}

.coming-soon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 200px;
  padding: 0.55rem 0.85rem;
  border-radius: 8px;
  border: 1px dashed var(--border-light);
  background: var(--bg-light);
  color: var(--slate-600);
  font-size: 0.78rem;
  font-weight: 500;
  line-height: 1.35;
}

.platform-unavailable {
  background: var(--bg-light);
  border-style: dashed;
  border-color: var(--border-light);
}

.platform-unavailable:hover {
  transform: none;
  box-shadow: none;
}

.platform-unavailable .platform-icon {
  color: var(--slate-400);
  border-color: var(--border-light);
  background: transparent;
}

.platform-unavailable:hover .platform-icon {
  background: transparent;
  border-color: var(--border-light);
  color: var(--slate-400);
}

.platform-unavailable.platform-recommended {
  border-color: rgba(22, 163, 74, 0.35);
  border-style: solid;
  background: linear-gradient(180deg, rgba(22, 163, 74, 0.03) 0%, var(--bg-light) 100%);
}

.platform-unavailable-msg {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 200px;
  padding: 0.55rem 0.85rem;
  border-radius: 8px;
  border: 1px dashed var(--border-light);
  background: rgba(148, 163, 184, 0.08);
  color: var(--slate-600);
  font-size: 0.78rem;
  font-weight: 500;
  line-height: 1.35;
}

.platform-hint {
  color: var(--slate-400);
  font-size: 0.72rem;
  margin-top: 0.35rem;
}

.platform-curl {
  color: var(--slate-400);
  font-size: 0.68rem;
  margin-top: 0.5rem;
  word-break: break-all;
  line-height: 1.35;
  font-family: var(--font-mono);
  display: block;
  max-width: 100%;
}

@media (prefers-reduced-motion: reduce) {
  .btn-install,
  .btn-install::after,
  .btn-install:hover .dl-arrow {
    animation: none !important;
  }
}

/* ── API links ── */
.api-links { display: flex; flex-wrap: wrap; gap: 0.65rem; }

.api-links a {
  padding: 0.55rem 0.9rem;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-dark);
  font-size: 0.85rem;
  color: var(--slate-400);
  text-decoration: none;
  transition: color 0.15s, border-color 0.15s;
}

.api-links a:hover {
  color: var(--niao-green-400);
  border-color: rgba(74, 222, 128, 0.3);
  text-decoration: none;
}

/* ── Tables (admin) ── */
.table-wrap { overflow: auto; margin-top: 1rem; }

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

table.data-table th,
table.data-table td {
  text-align: left;
  padding: 0.6rem 0.5rem;
  border-bottom: 1px solid var(--border-light);
  vertical-align: top;
}

table.data-table th {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--slate-600);
  font-weight: 600;
}

table.data-table .actions button {
  margin: 0.15rem 0.15rem 0 0;
  padding: 0.25rem 0.5rem;
  font-size: 0.72rem;
}

/* ── Messages ── */
.msg {
  margin-top: 0.75rem;
  padding: 0.65rem 0.85rem;
  border-radius: 8px;
  font-size: 0.88rem;
}

.msg.ok { background: rgba(22, 163, 74, 0.1); color: var(--ok); border: 1px solid rgba(22, 163, 74, 0.2); }
.msg.err { background: rgba(220, 38, 38, 0.1); color: var(--err); border: 1px solid rgba(220, 38, 38, 0.2); }

.hidden { display: none !important; }
.loading { color: var(--slate-400); text-align: center; padding: 2rem; }

.info-box {
  color: var(--slate-600);
  font-size: 0.875rem;
  padding: 0.75rem 1rem;
  background: var(--bg-light);
  border-radius: 8px;
  border: 1px solid var(--border-light);
  margin-bottom: 1rem;
}

.info-box code {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  background: rgba(22, 163, 74, 0.08);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
}

/* ── Footer ── */
.site-footer {
  border-top: 1px solid var(--border-dark);
  background:
    radial-gradient(ellipse 70% 80% at 0% 100%, rgba(74, 222, 128, 0.06), transparent 50%),
    radial-gradient(ellipse 50% 60% at 100% 0%, rgba(147, 190, 234, 0.08), transparent 45%),
    var(--niao-navy-950);
  color: var(--slate-400);
}

.footer-grid {
  display: grid;
  gap: 2.25rem;
  margin-bottom: 2.25rem;
}

@media (min-width: 640px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 900px) {
  .footer-grid,
  .footer-grid-4 {
    grid-template-columns: 1.6fr 1fr 1fr 1fr;
  }
}

.footer-brand p { margin-top: 0.75rem; max-width: 20rem; }

.footer-byline {
  margin-top: 0.85rem !important;
  color: var(--slate-300);
}

.footer-byline strong {
  color: var(--white);
}

.footer-social {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 8px;
  border: 1px solid var(--border-dark);
  color: var(--slate-400);
  text-decoration: none;
  font-size: 0.75rem;
  font-weight: 600;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.footer-social a svg {
  width: 1.15rem;
  height: 1.15rem;
  display: block;
}

.footer-social a:hover {
  border-color: rgba(74, 222, 128, 0.4);
  color: var(--niao-green-400);
  background: rgba(74, 222, 128, 0.06);
  text-decoration: none;
}

.footer-nav h2 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--slate-300);
  margin-bottom: 1rem;
}

.footer-nav ul { list-style: none; }
.footer-nav li { margin-bottom: 0.55rem; }

.footer-nav a {
  color: var(--slate-400);
  font-size: 0.875rem;
  text-decoration: none;
  transition: color 0.2s;
}

.footer-nav a:hover { color: var(--niao-green-400); text-decoration: none; }

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-dark);
}

@media (min-width: 768px) {
  .footer-bottom { flex-direction: row; align-items: center; justify-content: space-between; }
}

.footer-bottom-compact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.5rem;
  justify-content: space-between;
  padding-top: 0;
  border-top: none;
}

.footer-legal-inline {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1rem;
}

.footer-legal-inline a {
  color: var(--slate-400);
  font-size: 0.82rem;
  text-decoration: none;
}

.footer-legal-inline a:hover {
  color: var(--niao-green-400);
  text-decoration: none;
}

.risu-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.risu-logo-wrap {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-dark);
  flex-shrink: 0;
  text-decoration: none;
}

.risu-logo-wrap img {
  height: 2rem;
  width: 2rem;
  object-fit: contain;
}

.risu-logo-wrap-full {
  width: auto;
  height: auto;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 0;
}

.risu-logo-wrap-full img {
  height: 3.75rem;
  width: auto;
  max-width: 7.5rem;
  object-fit: contain;
  display: block;
}

@media (min-width: 768px) {
  .risu-logo-wrap-full img {
    height: 4.25rem;
    max-width: 8.5rem;
  }
}

.legal-page { max-width: 44rem; }

.legal-hero { margin-bottom: 1.5rem; }

.legal-updated {
  margin-top: 0.75rem;
  color: var(--slate-600);
}

.legal-prose { margin-top: 0.5rem; }

.legal-closing {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-light);
  font-size: 0.85rem;
  color: var(--slate-600);
}

/* ── Admin specific ── */
.admin-page {
  background: var(--bg-light);
  min-height: 100vh;
}

.admin-login-wrap {
  min-height: calc(100vh - 4rem);
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
}

.admin-login-card {
  width: 100%;
  max-width: 420px;
}

.admin-dash { padding-bottom: 3rem; }

.admin-status {
  color: var(--slate-600);
  font-size: 0.875rem;
  margin-bottom: 1.25rem;
}

.admin-tabs { margin-bottom: 1.25rem; }

.admin-tabs .tab.logout {
  margin-left: auto;
  color: var(--slate-400);
}

pre.admin-pre {
  background: var(--bg-light);
  padding: 0.75rem;
  border-radius: 8px;
  overflow: auto;
  font-size: 0.78rem;
  max-height: 360px;
  border: 1px solid var(--border-light);
  font-family: var(--font-mono);
}

.api-endpoint {
  display: block;
  padding: 1rem 1.15rem;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-dark);
  text-decoration: none;
  transition: border-color 0.15s, background 0.15s;
}

.api-endpoint:hover {
  border-color: rgba(74, 222, 128, 0.3);
  background: rgba(255, 255, 255, 0.06);
  text-decoration: none;
}

.api-endpoint code {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--niao-green-400);
}

.api-endpoint p {
  margin-top: 0.35rem;
  font-size: 0.82rem;
  color: var(--slate-400);
}

.api-grid {
  display: grid;
  gap: 0.65rem;
}

@media (min-width: 640px) {
  .api-grid { grid-template-columns: repeat(2, 1fr); }
}

.nm-section {
  border-top: 1px solid var(--border-light);
  background: linear-gradient(180deg, var(--white) 0%, var(--bg-light) 12rem);
}

.nm-section-head {
  margin-bottom: 2rem;
  max-width: 40rem;
  margin-inline: auto;
}

.nm-section-title {
  margin-top: 0.15rem;
  margin-bottom: 0.65rem;
  line-height: 1.2;
}

.nm-section-title code {
  color: var(--niao-green-600);
  font-size: 0.92em;
  font-weight: 500;
  background: rgba(22, 163, 74, 0.1);
  padding: 0.1rem 0.45rem;
  border-radius: 6px;
  vertical-align: baseline;
}

.section-head.center.nm-section-head {
  margin-bottom: 2.25rem;
}

.nm-section-head .eyebrow {
  margin-bottom: 0.35rem;
}

.nm-lead {
  max-width: 36rem;
  margin-inline: auto;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--slate-600);
}

.nm-lead code {
  font-size: 0.9em;
  color: var(--niao-navy-800);
  background: rgba(10, 18, 41, 0.06);
  padding: 0.12rem 0.4rem;
  border-radius: 5px;
}

.nm-ecosystem-link {
  color: var(--niao-green-600);
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px solid rgba(22, 163, 74, 0.3);
  transition: border-color 0.15s, color 0.15s;
}

.nm-ecosystem-link:hover {
  color: #15803d;
  border-bottom-color: var(--niao-green-600);
  text-decoration: none;
}

.nm-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 0.85rem;
  margin-bottom: 1.75rem;
}

.nm-flow-step {
  flex: 1 1 10.5rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.45rem;
  padding: 1.15rem 1rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  background: var(--white);
  box-shadow: var(--shadow-sm);
  min-height: 7.5rem;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.nm-flow-connector {
  display: none;
  flex: 0 0 auto;
  align-self: center;
  width: 1.5rem;
  color: rgba(22, 163, 74, 0.45);
}

.nm-flow-arrow {
  display: block;
  width: 1.5rem;
  height: 1.5rem;
}

.nm-flow-step:hover {
  border-color: rgba(22, 163, 74, 0.28);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.nm-flow-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.65rem;
  height: 1.65rem;
  border-radius: 999px;
  background: rgba(22, 163, 74, 0.12);
  color: var(--niao-green-600);
  font-size: 0.78rem;
  font-weight: 700;
  flex-shrink: 0;
}

.nm-flow-title code {
  font-size: 0.88em;
  color: var(--niao-green-600);
  background: rgba(22, 163, 74, 0.08);
  padding: 0.05rem 0.3rem;
  border-radius: 4px;
}

.nm-flow-title {
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--niao-navy-800);
  line-height: 1.3;
  margin: 0;
}

.nm-flow-desc {
  font-size: 0.8rem;
  color: var(--slate-600);
  line-height: 1.45;
  margin: 0;
}

@media (min-width: 900px) {
  .nm-flow {
    flex-wrap: nowrap;
    gap: 0.65rem;
  }

  .nm-flow-step {
    flex: 1 1 0;
    min-width: 0;
  }

  .nm-flow-connector {
    display: flex;
    align-items: center;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .nm-flow-step:hover {
    transform: none;
  }
}

@media (max-width: 899px) {
  .nm-flow-step {
    flex: 1 1 calc(50% - 0.45rem);
  }
}

@media (max-width: 520px) {
  .nm-flow-step {
    flex: 1 1 100%;
    min-height: auto;
  }
}

.nm-guide-card {
  margin-bottom: 1.25rem;
}

.nm-guide-card-head {
  margin-bottom: 1rem;
}

.nm-guide-card-head p {
  color: var(--slate-600);
  margin-top: 0.25rem;
}

.nm-checklist {
  list-style: none;
  counter-reset: nm-step;
  display: grid;
  gap: 1.15rem;
}

.nm-checklist > li {
  display: grid;
  gap: 0.65rem;
  padding-left: 2.25rem;
  position: relative;
  counter-increment: nm-step;
}

.nm-checklist > li::before {
  content: counter(nm-step);
  position: absolute;
  left: 0;
  top: 0.1rem;
  width: 1.5rem;
  height: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: rgba(22, 163, 74, 0.12);
  color: var(--niao-green-600);
  font-size: 0.75rem;
  font-weight: 700;
}

.nm-checklist-body strong {
  display: block;
  font-size: 0.92rem;
  margin-bottom: 0.2rem;
}

.nm-checklist-body p {
  font-size: 0.84rem;
  color: var(--slate-600);
  line-height: 1.5;
}

.nm-cmd-examples {
  display: grid;
  gap: 0.5rem;
}

.nm-guide-grid {
  display: grid;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

@media (min-width: 960px) {
  .nm-guide-grid {
    grid-template-columns: 1fr 1.1fr;
    align-items: start;
  }
}

.nm-card-lead {
  color: var(--slate-600);
  margin-top: 0.25rem;
  margin-bottom: 1rem;
}

.nm-cmd-groups {
  display: grid;
  gap: 1rem;
}

.nm-cmd-group-title {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--niao-green-600);
  margin-bottom: 0.5rem;
}

.nm-cmd-list {
  list-style: none;
  display: grid;
  gap: 0.55rem;
}

.nm-cmd-list li {
  display: grid;
  gap: 0.15rem;
  padding: 0.55rem 0.65rem;
  border-radius: 8px;
  background: var(--bg-light);
  border: 1px solid var(--border-light);
}

.nm-cmd-name {
  font-size: 0.8rem;
  color: var(--niao-navy-800);
  word-break: break-word;
}

.nm-cmd-desc {
  font-size: 0.78rem;
  color: var(--slate-600);
  line-height: 1.4;
}

.nm-catalog-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.nm-catalog-search-wrap {
  margin-bottom: 0.85rem;
}

.nm-catalog-search {
  max-width: 100%;
  width: 100%;
}

.nm-catalog-grid {
  display: grid;
  gap: 0.65rem;
  max-height: 28rem;
  overflow-y: auto;
  padding-right: 0.15rem;
}

@media (min-width: 640px) {
  .nm-catalog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.nm-pkg-card {
  padding: 0.9rem 1rem;
}

.nm-pkg-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
  margin-bottom: 0.15rem;
}

.nm-pkg-head h3 {
  font-size: 0.95rem;
  margin-right: auto;
}

.nm-pkg-card p {
  font-size: 0.8rem;
  margin-bottom: 0.65rem;
  min-height: 2.4em;
}

.nm-pkg-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-top: auto;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-light);
}

.nm-pkg-cmd {
  font-size: 0.72rem;
  color: var(--slate-600);
  word-break: break-all;
}

.copy-btn-light {
  background: var(--bg-light);
  border-color: var(--border-light);
  color: var(--slate-600);
}

.copy-btn-light:hover {
  background: var(--white);
  color: var(--niao-navy-800);
  border-color: rgba(22, 163, 74, 0.35);
}

.nm-catalog-loading,
.nm-catalog-empty {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--slate-600);
  padding: 1.5rem 0.5rem;
}

.nm-tips-grid {
  margin-bottom: 1.25rem;
}

.nm-tip-box strong {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.9rem;
}

.nm-tip-box p {
  font-size: 0.84rem;
  line-height: 1.55;
  color: var(--slate-600);
}

.nm-steps {
  display: grid;
  gap: 1rem;
}

@media (min-width: 768px) {
  .nm-steps { grid-template-columns: repeat(3, 1fr); }
}

.nm-step {
  padding: 1.15rem;
  border-radius: var(--radius);
  border: 1px solid var(--border-light);
  background: var(--white);
}

.nm-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 999px;
  background: rgba(22, 163, 74, 0.12);
  color: var(--niao-green-600);
  font-size: 0.75rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.nm-step h3 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.nm-step p {
  font-size: 0.82rem;
  color: var(--slate-600);
  margin-bottom: 0.65rem;
}

.hero-sub .hero-code {
  color: var(--slate-300);
  background: none;
  padding: 0;
}

.section-lead {
  color: var(--slate-600);
  margin-bottom: 1rem;
}

.section-last {
  padding-top: 0;
}

.release-row {
  display: flex;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.15rem;
}

.download-card {
  padding: 1.5rem;
}

.download-info {
  margin-bottom: 1rem;
}

.download-info code {
  font-size: 0.88em;
  background: rgba(10, 18, 41, 0.06);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
}

.release-select-wrap {
  flex: 0 0 auto;
}

.release-select-wrap .field-label {
  margin-top: 0;
  margin-bottom: 0.35rem;
  display: block;
}

.release-select-wrap .search-input,
.release-select {
  min-width: 200px;
  max-width: 240px;
}

#release-status {
  flex: 0 0 auto;
  align-self: flex-end;
  margin-bottom: 0.55rem;
}

.download-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.cmd-block-full { width: 100%; }
.cmd-block-sm { font-size: 0.78rem; }

.build-hint {
  color: var(--slate-600);
  margin-top: 0.85rem;
}

.platform-hint {
  color: var(--slate-400);
}

.ecosystem-cta-card {
  margin-top: 1.5rem;
  text-align: center;
  padding: 1.75rem 1.5rem;
  background: linear-gradient(135deg, rgba(22, 163, 74, 0.05) 0%, var(--white) 55%);
  border-color: rgba(22, 163, 74, 0.18);
}

.ecosystem-cta-card p {
  color: var(--slate-600);
  margin-bottom: 0.85rem;
  max-width: 28rem;
  margin-inline: auto;
}

.footer-brand .brand-wordmark-text {
  color: var(--niao-green-600);
}

.risu-meta {
  line-height: 1.4;
  color: var(--slate-300);
}

.risu-meta strong {
  color: var(--white);
}

.risu-links {
  margin-top: 0.25rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.75rem;
  color: var(--slate-400);
}

.risu-links a {
  color: var(--slate-400);
}

.risu-links a:hover {
  color: var(--niao-green-400);
  text-decoration: none;
}

.footer-copy {
  color: var(--slate-400);
}

.admin-footer {
  padding-block: 1.5rem;
}

.admin-footer-inner {
  border-top: none;
  padding-top: 0;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .admin-footer-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

@media (max-width: 640px) {
  .site-nav { display: none !important; }
}

/* ── Docs pages ── */
.docs-page .docs-main {
  background:
    radial-gradient(ellipse 80% 40% at 10% 0%, rgba(147, 190, 234, 0.18), transparent 55%),
    radial-gradient(ellipse 60% 35% at 90% 5%, rgba(74, 222, 128, 0.08), transparent 50%),
    var(--bg-light);
  min-height: 70vh;
}

.docs-container {
  max-width: 56rem;
}

.docs-container-wide {
  max-width: 72rem;
}

.docs-hero {
  text-align: center;
  margin-bottom: 2rem;
}

.docs-lead {
  color: var(--slate-600);
  max-width: 40rem;
  margin: 0.75rem auto 0;
}

.docs-lead-left {
  margin-left: 0;
  margin-right: 0;
  max-width: 42rem;
}

.docs-crumb {
  font-size: 0.85rem;
  color: var(--slate-600);
  margin-bottom: 0.75rem;
}

.docs-crumb a { color: var(--niao-green-600); }

.docs-grid {
  display: grid;
  gap: 1rem;
  margin: 1.5rem 0 2rem;
}

@media (min-width: 720px) {
  .docs-grid { grid-template-columns: repeat(2, 1fr); }
}

.docs-card {
  display: block;
  padding: 1.25rem 1.35rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  background: var(--white);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.15s;
}

.docs-card:hover {
  border-color: rgba(22, 163, 74, 0.3);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  text-decoration: none;
}

.docs-card h2 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: 0.35rem;
}

.docs-card p {
  font-size: 0.88rem;
  color: var(--slate-600);
}

.docs-section {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 1.35rem 1.5rem;
  margin-top: 1.25rem;
}

.docs-link-list {
  list-style: none;
  display: grid;
  gap: 0.45rem;
  margin: 0.85rem 0;
}

.docs-link-list a { font-family: var(--font-mono); font-size: 0.85rem; }

.docs-code {
  background: transparent;
  color: #e8eefc;
  border-radius: 0;
  padding: 1rem 1.15rem 1.15rem;
  overflow-x: auto;
  font-size: 0.82rem;
  margin: 0;
  font-family: var(--font-mono);
  line-height: 1.55;
}

.docs-code-block {
  background: var(--niao-navy-950);
  border-radius: var(--radius);
  margin: 0.85rem 0 1.35rem;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: var(--shadow-sm);
}

.docs-code-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.45rem 0.75rem;
  background: rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.docs-code-lang {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--slate-400);
}

.docs-copy-btn {
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
  color: var(--niao-green-400);
  font-family: var(--font-sans);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.22rem 0.55rem;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

.docs-copy-btn:hover {
  background: rgba(74, 222, 128, 0.12);
  border-color: rgba(74, 222, 128, 0.35);
}

.docs-copy-btn.is-copied {
  color: #fff;
  background: var(--niao-green-600);
  border-color: var(--niao-green-600);
}

.docs-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.5rem 0 1.25rem;
}

.docs-chips code {
  background: rgba(22, 163, 74, 0.1);
  color: var(--niao-navy-800);
  padding: 0.2rem 0.45rem;
  border-radius: 6px;
  font-size: 0.78rem;
}

.docs-table-wrap {
  overflow-x: auto;
  margin: 0.85rem 0 1.5rem;
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow-sm);
}

.docs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
}

.docs-table th,
.docs-table td {
  text-align: left;
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--border-light);
  vertical-align: top;
}

.docs-table th {
  background: linear-gradient(180deg, #fbfcfe, var(--bg-light));
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--slate-600);
  white-space: nowrap;
}

.docs-table tbody tr:last-child td { border-bottom: none; }

.docs-table tbody tr:hover td {
  background: rgba(22, 163, 74, 0.04);
}

.docs-table td code {
  font-size: 0.8rem;
  color: var(--niao-navy-900);
  background: rgba(10, 18, 41, 0.05);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
}

.docs-list {
  padding-left: 1.25rem;
  margin: 0.5rem 0 1.1rem;
  color: var(--slate-600);
}

.docs-list li { margin: 0.35rem 0; }

.docs-quote {
  margin: 1rem 0;
  padding: 0.85rem 1rem;
  border-left: 3px solid var(--niao-green-600);
  background: rgba(22, 163, 74, 0.06);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--slate-600);
}

.docs-hr {
  border: none;
  border-top: 1px solid var(--border-light);
  margin: 1.75rem 0;
}

.docs-heading {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--niao-navy-900);
  scroll-margin-top: 5.5rem;
}

.docs-prose h2.docs-heading {
  font-size: 1.35rem;
  margin: 2rem 0 0.75rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border-light);
}

.docs-prose h3.docs-heading {
  font-size: 1.05rem;
  margin: 1.5rem 0 0.55rem;
}

.docs-prose h4.docs-heading {
  font-size: 0.95rem;
  margin: 1.25rem 0 0.45rem;
}

.docs-prose p {
  color: var(--slate-600);
  margin: 0.65rem 0 1rem;
  line-height: 1.7;
}

.docs-prose > p:first-child { margin-top: 0; }

.docs-prose code:not(pre code) {
  font-family: var(--font-mono);
  font-size: 0.82em;
  background: rgba(10, 18, 41, 0.06);
  padding: 0.12rem 0.35rem;
  border-radius: 4px;
  color: var(--niao-navy-900);
}

.docs-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* Libraries index */
.docs-libs-head { margin-bottom: 0.5rem; }

.docs-libs-toolbar {
  display: grid;
  gap: 0.85rem;
  margin: 1.25rem 0 0.5rem;
}

.docs-lib-search {
  max-width: 28rem;
  width: 100%;
}

.docs-filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.docs-filter-chip {
  appearance: none;
  border: 1px solid var(--border-light);
  background: var(--white);
  color: var(--slate-600);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.docs-filter-chip:hover {
  border-color: rgba(22, 163, 74, 0.35);
  color: var(--niao-navy-800);
}

.docs-filter-chip.is-active {
  background: var(--niao-navy-950);
  border-color: var(--niao-navy-950);
  color: var(--niao-green-400);
}

.docs-libs-count { color: var(--slate-600); }

.docs-lib-grid {
  display: grid;
  gap: 0.85rem;
  margin-top: 1rem;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .docs-lib-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .docs-lib-grid { grid-template-columns: repeat(3, 1fr); }
}

.docs-lib-card {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: 1.1rem 1.15rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  background: var(--white);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  color: inherit;
  min-height: 9.5rem;
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.15s;
}

.docs-lib-card:hover {
  border-color: rgba(22, 163, 74, 0.35);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  text-decoration: none;
}

.docs-lib-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.5rem;
}

.docs-lib-card-top h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--niao-navy-900);
}

.docs-lib-card-desc {
  flex: 1;
  font-size: 0.86rem;
  color: var(--slate-600);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.docs-lib-card-foot {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
  margin-top: auto;
}

.docs-lib-stat {
  font-size: 0.75rem;
  color: var(--slate-600);
}

.docs-lib-card-go {
  margin-left: auto;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--niao-green-600);
}

.docs-ai-note { margin: 1.5rem 0 0.5rem; }

/* Per-library page */
.docs-lib-layout {
  display: grid;
  gap: 1.75rem;
  margin-top: 0.5rem;
  align-items: start;
}

@media (min-width: 980px) {
  .docs-lib-layout {
    grid-template-columns: minmax(0, 1fr) 15.5rem;
    gap: 2rem;
  }
}

.docs-lib-hero-panel {
  display: grid;
  gap: 1.25rem;
  padding: 1.5rem 1.5rem 1.35rem;
  border-radius: var(--radius-xl);
  background:
    linear-gradient(135deg, rgba(74, 222, 128, 0.08), transparent 40%),
    linear-gradient(180deg, #121c3a, var(--niao-navy-950));
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow-md);
  margin-bottom: 1.25rem;
}

.docs-lib-hero-panel .eyebrow {
  color: var(--niao-green-400);
  margin-bottom: 0.35rem;
}

.docs-lib-hero-panel h1 {
  color: #fff;
  margin-bottom: 0.5rem;
}

.docs-lib-desc {
  color: rgba(232, 238, 252, 0.82);
  max-width: 40rem;
  font-size: 1rem;
  line-height: 1.6;
}

.docs-lib-hero-panel .pill-green {
  background: rgba(74, 222, 128, 0.18);
  color: var(--niao-green-400);
}

.docs-lib-hero-panel .pill-muted {
  background: rgba(255, 255, 255, 0.08);
  color: rgba(232, 238, 252, 0.85);
}

.docs-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.95rem 0 0;
}

.docs-lib-hero-actions {
  display: grid;
  gap: 0.75rem;
}

.docs-install-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  padding: 0.45rem 0.55rem 0.45rem 0.85rem;
  max-width: 100%;
}

.docs-install {
  display: block;
  flex: 1;
  min-width: 0;
  background: transparent;
  color: var(--niao-green-400);
  padding: 0;
  border-radius: 0;
  font-size: 0.86rem;
  font-family: var(--font-mono);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.docs-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.docs-lib-hero-panel .btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.14);
  color: #fff;
}

.docs-lib-hero-panel .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  text-decoration: none;
}

.docs-fact-grid {
  display: grid;
  gap: 0.65rem;
  grid-template-columns: 1fr 1fr;
  margin-bottom: 1.25rem;
}

@media (min-width: 720px) {
  .docs-fact-grid { grid-template-columns: repeat(4, 1fr); }
}

.docs-fact {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 0.85rem 0.95rem;
  box-shadow: var(--shadow-sm);
  min-width: 0;
}

.docs-fact-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--slate-600);
  margin-bottom: 0.3rem;
}

.docs-fact code,
.docs-fact strong {
  font-size: 0.86rem;
  color: var(--niao-navy-900);
  word-break: break-all;
}

.docs-quick-import { margin-bottom: 0.5rem; }

.docs-versions { margin-top: 1.5rem; }

.docs-lib-aside {
  display: none;
}

@media (min-width: 980px) {
  .docs-lib-aside {
    display: grid;
    gap: 0.85rem;
    position: sticky;
    top: 5.5rem;
  }
}

.docs-toc,
.docs-aside-card {
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 0.95rem 1rem;
  box-shadow: var(--shadow-sm);
}

.docs-toc-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--slate-600);
  margin-bottom: 0.65rem;
}

.docs-toc ul {
  list-style: none;
  display: grid;
  gap: 0.25rem;
  max-height: 50vh;
  overflow: auto;
}

.docs-toc a {
  display: block;
  color: var(--slate-600);
  font-size: 0.82rem;
  padding: 0.28rem 0.4rem;
  border-radius: 6px;
  border-left: 2px solid transparent;
  text-decoration: none;
}

.docs-toc a:hover {
  color: var(--niao-navy-900);
  background: var(--bg-light);
}

.docs-toc a.is-active {
  color: var(--niao-green-600);
  border-left-color: var(--niao-green-600);
  background: rgba(22, 163, 74, 0.06);
  font-weight: 600;
}

.docs-toc-l3 a { padding-left: 0.9rem; font-size: 0.78rem; }

.docs-aside-cmd {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--niao-navy-900);
  background: var(--bg-light);
  padding: 0.55rem 0.65rem;
  border-radius: 8px;
  margin-bottom: 0.65rem;
  word-break: break-all;
}

.docs-aside-copy { width: 100%; }

.docs-aside-links {
  list-style: none;
  display: grid;
  gap: 0.4rem;
}

.docs-aside-links a {
  font-size: 0.84rem;
  color: var(--niao-navy-800);
}

.docs-aside-links a:hover { color: var(--niao-green-600); }

.docs-empty {
  text-align: center;
  padding: 3rem 1rem;
}

.site-nav a[aria-current="page"] {
  color: var(--niao-green-400);
}