@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600&family=Noto+Serif+SC:wght@500;600;700&display=swap');

:root {
  --paper: #f5f5f0;
  --paper-deep: #eeefe9;
  --ink: #181917;
  --muted: #6c6d66;
  --faint: #92938b;
  --line: #d8d9d1;
  --line-strong: #c4c6bd;
  --acid: #baff27;
  --blue: #4c4bf3;
  --coral: #e56f5c;
  --serif: "Noto Serif SC", "Songti SC", "STSong", serif;
  --sans: "IBM Plex Sans", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: var(--paper); color: var(--ink); }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }
button { color: inherit; cursor: pointer; }
.icon-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.icon { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.7; flex: 0 0 auto; }
.eyebrow { margin: 0; color: #75766e; font: 500 10px/1.3 var(--sans); letter-spacing: .14em; }

.site-header { position: sticky; top: 0; z-index: 20; height: 72px; border-bottom: 1px solid var(--line); background: rgba(245, 245, 240, .94); backdrop-filter: blur(14px); }
.header-inner { display: flex; align-items: center; justify-content: space-between; width: min(100% - 64px, 1440px); height: 100%; margin: 0 auto; }
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand-mark { display: grid; place-items: center; width: 39px; height: 39px; overflow: hidden; background: transparent; }
.brand-mark img { width: 39px; height: 39px; object-fit: contain; mix-blend-mode: multiply; }
.brand-copy { display: grid; gap: 2px; }
.brand-copy strong { font: 600 18px/1 var(--serif); letter-spacing: -.03em; }
.brand-copy small { color: var(--muted); font-size: 10px; letter-spacing: .08em; }
.header-meta { display: flex; align-items: center; gap: 20px; color: var(--muted); font-size: 12px; }
.status-dot { width: 7px; height: 7px; background: var(--acid); border-radius: 50%; box-shadow: 0 0 0 4px rgba(186, 255, 39, .16); }
.back-link { display: inline-flex; align-items: center; gap: 6px; color: var(--ink); border-left: 1px solid var(--line); padding-left: 20px; transition: color .2s ease; }
.back-link:hover { color: #737e00; }
.menu-toggle.icon-button { display: none; }
.icon-button { display: grid; place-items: center; width: 42px; height: 42px; border: 1px solid var(--line); background: transparent; }

.page-shell { display: grid; grid-template-columns: 270px minmax(0, 1fr); width: min(100% - 64px, 1440px); min-height: calc(100dvh - 72px); margin: 0 auto; }
.sidebar { position: sticky; top: 72px; align-self: start; height: calc(100dvh - 72px); padding: 40px 24px 28px 0; border-right: 1px solid var(--line); }
.sidebar-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; color: var(--ink); font: 500 11px/1 var(--sans); letter-spacing: .08em; text-transform: uppercase; }
.sidebar-count { color: var(--faint); font-size: 9px; letter-spacing: .1em; }
.search-box { display: flex; align-items: center; gap: 9px; height: 40px; padding: 0 10px; border: 1px solid var(--line); background: rgba(255, 255, 255, .44); transition: border-color .2s ease, background .2s ease; }
.search-box:focus-within { border-color: var(--ink); background: #fff; }
.search-box .icon { width: 15px; height: 15px; color: var(--muted); }
.search-box input { min-width: 0; flex: 1; border: 0; outline: 0; color: var(--ink); background: transparent; font-size: 12px; }
.search-box input::placeholder { color: #96978f; }
.search-box kbd { color: var(--faint); font-size: 10px; }
.side-nav { display: grid; gap: 2px; margin-top: 22px; }
.nav-link { display: flex; align-items: baseline; gap: 12px; padding: 11px 10px; color: var(--muted); border-left: 2px solid transparent; font-size: 13px; transition: color .2s ease, background .2s ease, border-color .2s ease; }
.nav-link span { width: 19px; color: #a0a19a; font: 10px/1 var(--sans); }
.nav-link:hover { color: var(--ink); background: rgba(255,255,255,.48); }
.nav-link.is-active { color: var(--ink); border-left-color: var(--acid); background: rgba(255,255,255,.64); }
.sidebar-note { position: absolute; right: 24px; bottom: 28px; left: 0; padding-top: 18px; border-top: 1px solid var(--line); }
.sidebar-note p { max-width: 190px; margin: 10px 0 0; color: var(--muted); font-size: 12px; line-height: 1.65; }

.content { min-width: 0; padding: 42px 0 0 76px; }
.intro { padding-bottom: 40px; }
.breadcrumb { display: flex; gap: 10px; align-items: center; color: var(--faint); font: 10px/1 var(--sans); letter-spacing: .13em; }
.breadcrumb-separator { color: var(--line-strong); }
.intro-grid { display: grid; grid-template-columns: minmax(0, 1fr) 220px; gap: 32px; align-items: end; margin-top: 63px; }
.intro h1 { max-width: 800px; margin: 10px 0 20px; font: 600 clamp(64px, 8vw, 112px)/.95 var(--serif); letter-spacing: -.08em; }
.intro-lede { max-width: 620px; margin: 0; color: var(--muted); font-size: 16px; line-height: 1.8; text-wrap: pretty; }
.quick-index { padding: 8px 0 0 22px; border-left: 1px solid var(--line-strong); }
.quick-index-label { margin-bottom: 12px; color: var(--faint); font-size: 10px; letter-spacing: .1em; }
.quick-index a { display: flex; justify-content: space-between; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--line); color: var(--muted); font-size: 12px; transition: color .2s ease, padding-left .2s ease; }
.quick-index a:hover { padding-left: 4px; color: var(--ink); }
.quick-index a span { color: var(--faint); font: 10px/1 var(--sans); }
.intro-rule { height: 1px; margin-top: 60px; background: var(--line); }
.summary-strip { display: flex; gap: 68px; padding-top: 19px; }
.summary-strip div { display: grid; gap: 4px; }
.summary-strip strong { font: 500 18px/1 var(--sans); font-variant-numeric: tabular-nums; }
.summary-strip span { color: var(--faint); font-size: 11px; }
.install-guide { display: grid; grid-template-columns: 125px minmax(0, 1fr); gap: 26px; margin-top: 34px; padding: 19px 0 0; border-top: 1px solid var(--line); }
.install-guide-title { display: grid; align-content: start; gap: 8px; }
.install-guide-title strong { font: 500 16px/1.2 var(--serif); letter-spacing: -.03em; }
.install-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.install-steps > div { display: grid; grid-template-columns: 24px minmax(0, 1fr); gap: 8px; }
.install-steps > div > span { color: var(--faint); font: 10px/1.4 var(--sans); }
.install-steps p { margin: -2px 0 0; color: var(--muted); font-size: 11px; line-height: 1.65; }
.install-steps strong { display: block; margin-bottom: 4px; color: var(--ink); font-weight: 500; }

.tool-section, .resource-section { padding: 52px 0 66px; border-top: 1px solid var(--line); scroll-margin-top: 96px; }
.section-heading { display: grid; grid-template-columns: minmax(260px, 1fr) minmax(250px, 380px); gap: 32px; align-items: end; margin-bottom: 30px; }
.section-heading h2 { margin: 10px 0 0; font: 600 42px/1.05 var(--serif); letter-spacing: -.06em; }
.section-heading > p { max-width: 340px; margin: 0; color: var(--muted); font-size: 13px; line-height: 1.7; }
.filter-row { display: flex; align-items: center; gap: 7px; min-height: 36px; margin-bottom: 12px; }
.filter-chip { height: 30px; padding: 0 11px; border: 1px solid var(--line); background: transparent; color: var(--muted); font-size: 11px; transition: all .2s ease; }
.filter-chip:hover { border-color: var(--ink); color: var(--ink); }
.filter-chip.is-selected { border-color: var(--ink); background: var(--ink); color: var(--paper); }
.result-count { margin-left: auto; color: var(--faint); font-size: 11px; font-variant-numeric: tabular-nums; }
.tool-list { border-top: 1px solid var(--ink); }
.tool-row { display: grid; grid-template-columns: 32px 45px minmax(0, 1fr) auto; gap: 18px; align-items: start; padding: 21px 0 20px; border-bottom: 1px solid var(--line); transition: background .22s ease, padding-left .22s ease; }
.tool-row:hover { padding-left: 10px; background: rgba(255,255,255,.43); }
.tool-row[hidden] { display: none; }
.tool-index { padding-top: 5px; color: var(--faint); font: 10px/1 var(--sans); }
.tool-icon { display: grid; place-items: center; width: 45px; height: 45px; border: 1px solid rgba(24,25,23,.14); font: 600 11px/1 var(--sans); letter-spacing: -.02em; }
.tone-lime { background: #c8ff43; color: #273100; }
.tone-blue { background: #b3b7ff; color: #2929b6; }
.tone-coral { background: #f3b1a2; color: #6f251b; }
.tone-yellow { background: #f3dc6a; color: #574b00; }
.tone-ink { background: #22231f; color: #f5f5f0; }
.tone-violet { background: #d6c3ee; color: #512a75; }
.tone-orange { background: #f3a060; color: #66320e; }
.tone-green { background: #acdcae; color: #235129; }
.tool-info { min-width: 0; }
.tool-title { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.tool-title h3 { margin: 0; font: 500 17px/1.3 var(--serif); letter-spacing: -.03em; }
.tool-tag { padding: 4px 6px 3px; border: 1px solid var(--line); color: var(--faint); font-size: 9px; line-height: 1; }
.tool-info p { max-width: 640px; margin: 7px 0 10px; color: var(--muted); font-size: 12px; line-height: 1.6; }
.platforms { display: flex; flex-wrap: wrap; gap: 8px; color: var(--faint); font-size: 10px; }
.platforms span + span::before { content: "/"; margin-right: 8px; color: var(--line-strong); }
.tool-action { display: flex; align-items: center; gap: 9px; padding-top: 3px; }
.action-link { display: inline-flex; align-items: center; gap: 6px; padding-bottom: 4px; border-bottom: 1px solid var(--ink); color: var(--ink); font-size: 12px; transition: color .2s ease, border-color .2s ease, transform .2s ease; }
.action-link:hover { transform: translateX(2px); color: #6e7c00; border-color: #6e7c00; }
.copy-button { display: grid; place-items: center; width: 29px; height: 29px; border: 1px solid var(--line); background: transparent; color: var(--muted); transition: all .2s ease; }
.copy-button:hover { border-color: var(--ink); color: var(--ink); background: #fff; }
.copy-button.is-copied { border-color: var(--acid); background: var(--acid); color: #182000; }
.copy-button .icon { width: 14px; height: 14px; }
.install-line { display: flex; align-items: center; gap: 8px; max-width: 100%; margin-top: 13px; }
.install-line code { display: block; max-width: calc(100% - 38px); overflow: auto; padding: 7px 8px; border: 1px solid var(--line); background: var(--paper-deep); color: #52534b; font: 10px/1.35 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; white-space: nowrap; }
.empty-state { padding: 28px 0; color: var(--muted); border-bottom: 1px solid var(--line); font-size: 13px; }
.reset-search { margin-left: 6px; padding: 0 0 2px; border: 0; border-bottom: 1px solid var(--ink); background: transparent; font-size: 12px; }

.resource-section { padding-bottom: 56px; }
.resource-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--ink); }
.resource-card { position: relative; display: grid; grid-template-columns: 32px minmax(0, 1fr) 18px; gap: 16px; min-height: 140px; padding: 22px 18px 18px 0; border-bottom: 1px solid var(--line); transition: background .22s ease, padding-left .22s ease; }
.resource-card + .resource-card { padding-left: 18px; border-left: 1px solid var(--line); }
.resource-card:hover { padding-left: 10px; background: rgba(255,255,255,.43); }
.resource-card + .resource-card:hover { padding-left: 28px; }
.resource-number { color: var(--faint); font: 10px/1 var(--sans); }
.resource-card h3 { margin: -3px 0 8px; font: 500 19px/1.25 var(--serif); letter-spacing: -.04em; }
.resource-card p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.6; }
.resource-card > .icon { margin-top: 0; color: var(--faint); }
.site-footer { display: flex; justify-content: space-between; align-items: center; gap: 14px; padding: 25px 0 32px; color: var(--faint); font-size: 10px; letter-spacing: .04em; }
.site-footer a { display: inline-flex; align-items: center; gap: 5px; color: var(--muted); }
.site-footer a:hover { color: var(--ink); }
.site-footer .icon { width: 12px; height: 12px; }
.resource-directory { padding: 52px 0 66px; border-top: 1px solid var(--line); scroll-margin-top: 96px; }
.resource-meta { display: flex; align-items: center; gap: 22px; margin: -8px 0 16px; color: var(--faint); font-size: 10px; }
.resource-meta span + span::before { content: "/"; margin-right: 22px; color: var(--line-strong); }
.resource-list { border-top: 1px solid var(--ink); }
.resource-row .tool-icon { font-size: 10px; }
.resource-row .tool-info p { max-width: 720px; }

@media (max-width: 1000px) {
  .header-inner, .page-shell { width: min(100% - 40px, 820px); }
  .page-shell { display: block; }
  .sidebar { position: sticky; top: 72px; z-index: 10; display: flex; align-items: center; gap: 18px; width: 100%; height: auto; padding: 12px 0; border-right: 0; border-bottom: 1px solid var(--line); background: rgba(245,245,240,.96); }
  .sidebar-head, .sidebar-note { display: none; }
  .search-box { flex: 0 1 210px; }
  .side-nav { display: flex; flex: 1; gap: 2px; margin: 0; overflow-x: auto; }
  .nav-link { flex: 0 0 auto; padding: 9px 9px; border-left: 0; border-bottom: 2px solid transparent; white-space: nowrap; }
  .nav-link.is-active { border-bottom-color: var(--acid); }
  .content { padding: 42px 0 0; }
}

@media (max-width: 680px) {
  .site-header { height: 64px; }
  .header-inner, .page-shell { width: min(100% - 28px, 580px); }
  .header-meta { display: none; }
  .menu-toggle.icon-button { display: grid; }
  .sidebar { top: 64px; display: block; padding: 10px 0 8px; }
  .search-box { width: 100%; }
  .side-nav { display: none; flex-wrap: wrap; padding-top: 8px; }
  .sidebar.is-open .side-nav { display: flex; }
  .content { padding-top: 28px; }
  .intro-grid { grid-template-columns: 1fr; gap: 30px; margin-top: 42px; }
  .intro h1 { font-size: clamp(58px, 18vw, 84px); }
  .intro-lede { font-size: 14px; }
  .quick-index { padding-left: 14px; }
  .intro-rule { margin-top: 42px; }
  .summary-strip { gap: 24px; justify-content: space-between; }
  .summary-strip strong { font-size: 16px; }
  .summary-strip span { font-size: 10px; }
  .install-guide { display: block; margin-top: 28px; }
  .install-guide-title { display: flex; align-items: baseline; gap: 10px; }
  .install-steps { display: block; margin-top: 18px; }
  .install-steps > div { padding: 12px 0; border-top: 1px solid var(--line); }
  .tool-section, .resource-section, .resource-directory { padding: 42px 0 50px; }
  .section-heading { display: block; margin-bottom: 24px; }
  .section-heading h2 { font-size: 35px; }
  .section-heading > p { margin-top: 15px; font-size: 12px; }
  .resource-meta { flex-wrap: wrap; gap: 8px 14px; margin-top: -4px; line-height: 1.5; }
  .resource-meta span + span::before { margin-right: 14px; }
  .filter-row { overflow-x: auto; margin-right: -14px; padding-right: 14px; }
  .result-count { flex: 0 0 auto; }
  .tool-row { grid-template-columns: 25px 40px minmax(0, 1fr); gap: 11px; padding: 18px 0; }
  .tool-row:hover { padding-left: 0; }
  .tool-icon { width: 40px; height: 40px; font-size: 10px; }
  .tool-index { padding-top: 4px; font-size: 9px; }
  .tool-title h3 { font-size: 16px; }
  .tool-info p { margin-top: 6px; font-size: 11px; }
  .tool-action { grid-column: 3; padding-top: 2px; }
  .action-link { font-size: 11px; }
  .resource-grid { display: block; }
  .resource-card, .resource-card + .resource-card, .resource-card + .resource-card:hover { min-height: 100px; padding: 18px 0; border-left: 0; }
  .resource-card:hover { padding-left: 0; }
  .site-footer { align-items: flex-start; flex-wrap: wrap; padding-bottom: 24px; }
  .site-footer a { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

:focus-visible { outline: 2px solid #788300; outline-offset: 3px; }