/* ==========================================================================
   指纹浏览器资源合集 - design tokens
   Radius rule: interactive pills = full, containers = 14px, panels = 20px.
   Accent rule: indigo is the only accent; sky only appears inside gradients.
   ========================================================================== */

:root {
  color-scheme: light;

  --indigo-50: #eef2ff;
  --indigo-500: #6366f1;
  --indigo-600: #4f46e5;
  --indigo-700: #4338ca;
  --sky-500: #0ea5e9;

  --bg: #ffffff;
  --bg-soft: #f6f7fb;
  --surface: #ffffff;
  --surface-2: #fafbfe;
  --text: #0f172a;
  --text-2: #4a5568;
  --text-3: #79839a;
  --border: #e7e9f2;
  --border-strong: #d6dae8;

  --accent: var(--indigo-600);
  --accent-hover: var(--indigo-700);
  --accent-soft: rgba(79, 70, 229, 0.07);
  --accent-line: rgba(79, 70, 229, 0.22);
  --on-accent: #ffffff;
  --ring: rgba(79, 70, 229, 0.4);

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 6px 20px -8px rgba(30, 41, 80, 0.16);
  --shadow-lg: 0 24px 60px -24px rgba(30, 41, 80, 0.28);

  --r-sm: 10px;
  --r: 14px;
  --r-lg: 20px;
  --r-pill: 999px;

  --s-1: 8px;
  --s-2: 12px;
  --s-3: 16px;
  --s-4: 24px;
  --s-5: 32px;
  --s-6: 48px;
  --s-7: 64px;

  --wrap: 1280px;
  --header-h: 64px;
  /* Single source of truth for anchor offsets. Applied via scroll-padding-top
     only; adding scroll-margin-top on sections too would stack the two. */
  --anchor-offset: 88px;

  --font: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "JetBrains Mono", Consolas,
    "Liberation Mono", monospace;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] {
  color-scheme: dark;

  --bg: #0b1020;
  --bg-soft: #0e142a;
  --surface: #111834;
  --surface-2: #141c3b;
  --text: #e9edf9;
  --text-2: #aab3ca;
  --text-3: #79839c;
  --border: #232c4c;
  --border-strong: #303a5f;

  --accent: #8b93f8;
  --accent-hover: #a5abfb;
  --accent-soft: rgba(139, 147, 248, 0.12);
  --accent-line: rgba(139, 147, 248, 0.3);
  --on-accent: #0b1020;
  --ring: rgba(139, 147, 248, 0.5);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 6px 20px -8px rgba(0, 0, 0, 0.6);
  --shadow-lg: 0 24px 60px -24px rgba(0, 0, 0, 0.75);
}

/* --------------------------------------------------------------------------
   Base
   -------------------------------------------------------------------------- */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--anchor-offset);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 { margin: 0; line-height: 1.2; letter-spacing: -0.02em; font-weight: 650; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  padding: 1px 5px;
  border-radius: 5px;
  background: var(--accent-soft);
  color: var(--accent);
}

:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

/* Component `display` rules outrank the UA stylesheet, so [hidden] needs force. */
[hidden] { display: none !important; }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: fixed;
  top: 8px; left: 8px;
  z-index: 200;
  padding: 10px 18px;
  border-radius: var(--r-pill);
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
  transform: translateY(-200%);
  transition: transform 0.2s var(--ease);
}
.skip-link:focus { transform: translateY(0); }

.icon { width: 18px; height: 18px; flex: none; }
.icon--xs { width: 14px; height: 14px; }
.icon--up { transform: rotate(180deg); }

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.header.is-stuck { border-bottom-color: var(--border); }

.header__inner {
  max-width: var(--wrap);
  height: var(--header-h);
  margin: 0 auto;
  padding: 0 var(--s-4);
  display: flex;
  align-items: center;
  gap: var(--s-4);
}

.brand { display: flex; align-items: center; gap: 10px; flex: none; }
.brand__mark { width: 32px; height: 32px; }
.brand__mark svg { width: 100%; height: 100%; }
.brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.brand__text strong { font-size: 15px; font-weight: 650; letter-spacing: -0.01em; }
.brand__text span {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  color: var(--text-3);
}

.nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav__link {
  padding: 7px 12px;
  border-radius: var(--r-pill);
  font-size: 14px;
  color: var(--text-2);
  white-space: nowrap;
  transition: color 0.18s var(--ease), background 0.18s var(--ease);
}
.nav__link:hover { color: var(--text); background: var(--bg-soft); }
.nav__link.is-active { color: var(--accent); background: var(--accent-soft); font-weight: 600; }

/* Category bar: the only jump navigation available below 1024px, where both
   the header nav and the sidebar TOC are hidden. */
.catbar { display: none; border-top: 1px solid var(--border); }
.catbar__inner {
  display: flex;
  gap: 6px;
  padding: 8px var(--s-3);
  overflow-x: auto;
  scroll-snap-type: x proximity;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.catbar__inner::-webkit-scrollbar { display: none; }
.catbar a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex: none;
  scroll-snap-align: start;
  padding: 6px 13px;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--surface);
  font-size: 13px;
  color: var(--text-2);
  white-space: nowrap;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease),
    background 0.18s var(--ease);
}
.catbar a.is-active {
  color: var(--accent);
  border-color: var(--accent-line);
  background: var(--accent-soft);
  font-weight: 600;
}
.catbar__count { font-family: var(--font-mono); font-size: 10.5px; color: var(--text-3); }
.catbar a.is-active .catbar__count { color: var(--accent); }

.header__actions { display: flex; align-items: center; gap: var(--s-1); }

.icon-btn {
  display: grid;
  place-items: center;
  width: 36px; height: 36px;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--surface);
  color: var(--text-2);
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}
.icon-btn:hover { color: var(--accent); border-color: var(--accent-line); }
.icon--moon { display: none; }
[data-theme="dark"] .icon--sun { display: none; }
[data-theme="dark"] .icon--moon { display: block; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 36px;
  padding: 0 16px;
  border-radius: var(--r-pill);
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 0.15s var(--ease), background 0.18s var(--ease),
    border-color 0.18s var(--ease), color 0.18s var(--ease);
}
.btn:active { transform: translateY(1px); }
.btn--ghost {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
}
.btn--ghost:hover { border-color: var(--accent-line); color: var(--accent); }

.btn--repo { padding-right: 6px; gap: 6px; }
.btn__count {
  padding: 2px 9px;
  border-radius: var(--r-pill);
  background: var(--bg-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-2);
  font-variant-numeric: tabular-nums;
}
.btn--repo:hover .btn__count { background: var(--accent-soft); color: var(--accent); }

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  overflow: hidden;
  padding: var(--s-6) 0 var(--s-5);
  background: var(--bg);
}
.hero::before {
  content: "";
  position: absolute;
  inset: -40% 0 auto -10%;
  height: 720px;
  background:
    radial-gradient(45% 55% at 18% 30%, rgba(79, 70, 229, 0.14), transparent 70%),
    radial-gradient(40% 50% at 72% 18%, rgba(14, 165, 233, 0.13), transparent 70%);
  filter: blur(4px);
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--border) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.5;
  -webkit-mask-image: radial-gradient(70% 60% at 50% 30%, #000, transparent 75%);
  mask-image: radial-gradient(70% 60% at 50% 30%, #000, transparent 75%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--s-4);
  display: grid;
  gap: var(--s-6);
  align-items: center;
}

.hero__copy h1 {
  font-size: clamp(2.25rem, 5.4vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
  font-weight: 700;
  background: linear-gradient(120deg, var(--text) 30%, var(--accent) 130%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__sub {
  margin-top: var(--s-3);
  max-width: 34em;
  font-size: 16px;
  color: var(--text-2);
}

.hero__cta {
  margin-top: var(--s-2);
  font-size: 14px;
  color: var(--accent);
}
.hero__cta strong { font-weight: 700; }

.search {
  position: relative;
  display: flex;
  align-items: center;
  margin-top: var(--s-4);
  max-width: 520px;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-pill);
  background: var(--surface);
  box-shadow: var(--shadow-md);
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}
.search:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft), var(--shadow-md);
}
.search__icon { position: absolute; left: 18px; color: var(--text-3); }
.search input {
  width: 100%;
  height: 52px;
  padding: 0 46px 0 48px;
  border: 0;
  border-radius: var(--r-pill);
  background: transparent;
  font: inherit;
  font-size: 15px;
  color: var(--text);
}
.search input::placeholder { color: var(--text-3); }
.search input:focus { outline: none; }
.search input::-webkit-search-cancel-button { display: none; }
.search__clear {
  position: absolute;
  right: 12px;
  display: grid;
  place-items: center;
  width: 28px; height: 28px;
  border: 0;
  border-radius: var(--r-pill);
  background: var(--bg-soft);
  color: var(--text-2);
  cursor: pointer;
}
.search__clear:hover { color: var(--text); }

.search__hint {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: var(--s-2);
  font-size: 13px;
  color: var(--text-3);
}
.tag {
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--surface);
  font: inherit;
  font-size: 13px;
  color: var(--text-2);
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease),
    background 0.18s var(--ease);
}
.tag:hover {
  color: var(--accent);
  border-color: var(--accent-line);
  background: var(--accent-soft);
}

.hero__visual {
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--surface-2);
  box-shadow: var(--shadow-lg);
}
[data-theme="dark"] .hero__visual img { filter: invert(1) hue-rotate(180deg) brightness(1.05); }

/* --------------------------------------------------------------------------
   Stats
   -------------------------------------------------------------------------- */

.stats {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--s-4);
}
.stats__inner {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: var(--border);
  overflow: hidden;
}
.stats__inner > div {
  padding: var(--s-3) var(--s-4);
  background: var(--surface);
}
.stats__inner > div:last-child { grid-column: 1 / -1; }
.stats dt { font-size: 12px; color: var(--text-3); letter-spacing: 0.02em; }
.stats dd {
  margin: 2px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(1.25rem, 2.4vw, 1.75rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--text);
}
.stats dd time { font-size: 0.72em; color: var(--text-2); }

/* --------------------------------------------------------------------------
   Layout + sidebar
   -------------------------------------------------------------------------- */

.layout {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: var(--s-6) var(--s-4) var(--s-7);
  display: grid;
  gap: var(--s-6);
}

.toc { display: none; }
.toc__inner {
  position: sticky;
  top: calc(var(--header-h) + 24px);
}
.toc__title {
  margin-bottom: 10px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
}
.toc a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 7px 12px;
  border-radius: var(--r-sm);
  border-left: 2px solid transparent;
  font-size: 14px;
  color: var(--text-2);
  transition: color 0.18s var(--ease), background 0.18s var(--ease),
    border-color 0.18s var(--ease);
}
.toc a:hover { color: var(--text); background: var(--bg-soft); }
.toc a.is-active {
  color: var(--accent);
  background: var(--accent-soft);
  border-left-color: var(--accent);
  font-weight: 600;
}
.toc__count { font-family: var(--font-mono); font-size: 11px; color: var(--text-3); }
.toc a.is-active .toc__count { color: var(--accent); }

.content { min-width: 0; display: flex; flex-direction: column; gap: var(--s-7); }

.result {
  padding: 10px 16px;
  border: 1px solid var(--accent-line);
  border-radius: var(--r);
  background: var(--accent-soft);
  font-size: 14px;
  color: var(--accent);
}

/* --------------------------------------------------------------------------
   Sections
   -------------------------------------------------------------------------- */

.section { scroll-margin-top: 0; }
.section__head { margin-bottom: var(--s-4); }
.section__head h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.03em;
}
.section__lead {
  margin-top: 10px;
  width: 100%;
  color: var(--text-2);
}
.note {
  margin-top: var(--s-2);
  padding: 10px 14px;
  border-left: 2px solid var(--accent-line);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: var(--bg-soft);
  font-size: 13px;
  color: var(--text-3);
}

.subhead {
  margin: var(--s-5) 0 var(--s-3);
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 15px;
  font-weight: 650;
  color: var(--text);
}
.subhead::after {
  content: attr(data-count);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: var(--r-pill);
  background: var(--bg-soft);
  color: var(--text-3);
}
.subhead::before {
  content: "";
  order: 3;
  flex: 1;
  height: 1px;
  background: var(--border);
}
.section__head + .subhead { margin-top: 0; }
/* The count is the category total, which would misread while results are filtered. */
.is-searching .subhead::after { display: none; }
/* Filtering can leave odd counts, and empty grid cells would show as grey gaps. */
.is-searching .rows { grid-template-columns: minmax(0, 1fr); }

.empty {
  padding: var(--s-4);
  border: 1px dashed var(--border-strong);
  border-radius: var(--r);
  text-align: center;
  color: var(--text-3);
  font-size: 14px;
}

.grid { display: grid; gap: var(--s-2); }
.grid--vendor { grid-template-columns: minmax(0, 1fr); gap: var(--s-3); }
.grid--lg { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
.grid--md { grid-template-columns: repeat(auto-fill, minmax(215px, 1fr)); }
.grid--sm { grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); }

/* --------------------------------------------------------------------------
   Brand mark (deterministic monogram)
   -------------------------------------------------------------------------- */

.mark {
  display: grid;
  place-items: center;
  flex: none;
  width: 38px; height: 38px;
  border-radius: 11px;
  font-size: 16px;
  font-weight: 650;
  color: hsl(var(--mark-h) 62% 42%);
  background: linear-gradient(
    140deg,
    hsl(var(--mark-h) 82% 96%),
    hsl(calc(var(--mark-h) + 22) 78% 92%)
  );
  box-shadow: inset 0 0 0 1px hsl(var(--mark-h) 60% 88%);
}
.mark--sm { width: 30px; height: 30px; border-radius: 9px; font-size: 13px; }
[data-theme="dark"] .mark {
  color: hsl(var(--mark-h) 75% 78%);
  background: linear-gradient(
    140deg,
    hsl(var(--mark-h) 42% 20%),
    hsl(calc(var(--mark-h) + 22) 40% 16%)
  );
  box-shadow: inset 0 0 0 1px hsl(var(--mark-h) 40% 28%);
}

/* --------------------------------------------------------------------------
   Vendor card
   -------------------------------------------------------------------------- */

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
  padding: var(--s-3);
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: var(--surface);
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease),
    transform 0.18s var(--ease);
}
.card:hover {
  border-color: var(--accent-line);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.card__head { display: flex; align-items: flex-start; gap: 12px; }
.card__title { flex: 1; min-width: 0; }
.card__title h4 { font-size: 16px; font-weight: 650; }
.card__title h4 a { transition: color 0.18s var(--ease); }
.card__title h4 a:hover { color: var(--accent); }
.card__domain {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  flex: none;
  padding: 3px 10px 3px 8px;
  border-radius: var(--r-pill);
  font-size: 12px;
  font-weight: 600;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--accent-line);
}
.badge .icon { width: 12px; height: 12px; }

.card__desc {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--text-2);
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 4;
  line-clamp: 4;
  overflow: hidden;
}
.card.is-open .card__desc { -webkit-line-clamp: unset; line-clamp: unset; }
.card__desc strong { color: var(--text); font-weight: 600; }

.card__foot {
  margin-top: auto;
  padding-top: 4px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-2);
}
.card__visit {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  transition: gap 0.18s var(--ease);
}
.card__visit:hover { gap: 9px; }

.card__more {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px 3px 12px;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--surface);
  font: inherit;
  font-size: 12.5px;
  color: var(--text-2);
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}
.card__more:hover { color: var(--accent); border-color: var(--accent-line); }
.card__more .icon { transition: transform 0.18s var(--ease); }
.card.is-open .card__more .icon { transform: rotate(180deg); }

/* --------------------------------------------------------------------------
   Chip
   -------------------------------------------------------------------------- */

.chip {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  min-height: 52px;
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: var(--surface);
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease),
    transform 0.18s var(--ease);
}
.chip:hover {
  border-color: var(--accent-line);
  background: var(--surface-2);
  transform: translateY(-1px);
}
.chip:active { transform: translateY(0); }
.chip__body { min-width: 0; flex: 1; display: flex; flex-direction: column; }
.chip__name {
  font-size: 13.5px;
  line-height: 1.35;
  font-weight: 550;
  color: var(--text);
  word-break: break-word;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  overflow: hidden;
}
.chip__domain {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--text-3);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.chip__go { color: var(--text-3); opacity: 0; transition: opacity 0.18s var(--ease); }
.chip:hover .chip__go { opacity: 1; color: var(--accent); }

/* --------------------------------------------------------------------------
   Article rows
   -------------------------------------------------------------------------- */

.rows {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--r);
  overflow: hidden;
}
.row {
  min-width: 0;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 11px 16px;
  background: var(--surface);
  transition: background 0.18s var(--ease);
}
.row:hover { background: var(--surface-2); }
.row__index {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.9;
  color: var(--text-3);
  flex: none;
  width: 22px;
}
.row__body { min-width: 0; flex: 1; display: flex; flex-direction: column; }
.row__link {
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  transition: color 0.18s var(--ease);
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  overflow: hidden;
}
.row:hover .row__link { color: var(--accent); }
.row__domain {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--text-3);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* --------------------------------------------------------------------------
   FAQ
   -------------------------------------------------------------------------- */

.faq {
  display: grid;
  gap: 1px;
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: var(--border);
  overflow: hidden;
}
.faq__item { background: var(--surface); }
.faq__item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  transition: color 0.18s var(--ease);
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary:hover { color: var(--accent); }
.faq__item summary .icon { color: var(--text-3); transition: transform 0.2s var(--ease); }
.faq__item[open] summary .icon { transform: rotate(180deg); }
.faq__item p {
  padding: 0 20px 18px;
  max-width: 72ch;
  font-size: 14px;
  color: var(--text-2);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */


.footer {
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
}
.footer__inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: var(--s-6) var(--s-4) var(--s-4);
  display: grid;
  gap: var(--s-4);
}
.footer__title { font-weight: 650; }
.footer__note {
  margin-top: 6px;
  max-width: 58ch;
  font-size: 13px;
  color: var(--text-3);
}
.footer__links { display: flex; flex-direction: column; gap: 10px; }
.footer__links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-2);
  transition: color 0.18s var(--ease);
}
.footer__links a:hover { color: var(--accent); }
.footer__legal {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: var(--s-3) var(--s-4) var(--s-5);
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-3);
}

.to-top {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 90;
  display: grid;
  place-items: center;
  width: 42px; height: 42px;
  border: 1px solid var(--border);
  border-radius: var(--r-pill);
  background: var(--surface);
  color: var(--text-2);
  box-shadow: var(--shadow-md);
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease),
    transform 0.18s var(--ease);
}
.to-top:hover { color: var(--accent); border-color: var(--accent-line); transform: translateY(-2px); }

/* --------------------------------------------------------------------------
   Scroll reveal

   Headings only, and driven by a scroll-progress timeline rather than
   JavaScript. Being position-based it resolves correctly after an anchor jump,
   where an IntersectionObserver can skip sections entirely and strand them at
   opacity 0. Browsers without view() support simply render everything static.
   -------------------------------------------------------------------------- */

@keyframes head-rise {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}

@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .section__head,
    .subhead {
      animation: head-rise linear both;
      animation-timeline: view();
      animation-range: entry 0% entry 65%;
    }
  }
}

/* --------------------------------------------------------------------------
   Breakpoints
   -------------------------------------------------------------------------- */

@media (min-width: 640px) {
  .stats__inner { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .stats__inner > div:last-child { grid-column: auto; }
  .footer__inner { grid-template-columns: 1.4fr 1fr; }
  .footer__links { align-items: flex-end; }
}

@media (min-width: 768px) {
  .grid--vendor { grid-template-columns: repeat(auto-fill, minmax(330px, 1fr)); }
  .rows { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 1024px) {
  body { font-size: 15px; }
  .stats__inner { grid-template-columns: repeat(5, minmax(0, 1fr)); }
  .hero { padding: var(--s-7) 0 var(--s-6); }
  .hero__inner { grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); }
  .layout { grid-template-columns: 208px minmax(0, 1fr); }
  .toc { display: block; }
}

@media (max-width: 1023px) {
  :root { --anchor-offset: 124px; }
  .nav { display: none; }
  .catbar { display: block; }
  .header__actions { margin-left: auto; }
}

@media (max-width: 767px) {
  .hero__visual { display: none; }
  .brand__text span { display: none; }
  .row__domain { display: none; }
  .hero { padding: var(--s-5) 0 var(--s-4); }
  .layout { padding: var(--s-5) var(--s-3) var(--s-6); }
  .header__inner, .hero__inner, .stats, .footer__inner, .footer__legal { padding-left: var(--s-3); padding-right: var(--s-3); }
  .grid--lg, .grid--md, .grid--sm { grid-template-columns: repeat(auto-fill, minmax(155px, 1fr)); }
  .to-top { right: 12px; bottom: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media (prefers-reduced-transparency: reduce) {
  .header { background: var(--bg); backdrop-filter: none; -webkit-backdrop-filter: none; }
}