/* ==========================================================================
   KINGHON theme design system
   Source: references/经宏官网2/guangzhou-jinghong-official-site.html
   Halo loads this file from templates/assets/css/style.css.
   ========================================================================== */

:root {
  --kh-bg: oklch(99% 0.002 240);
  --kh-surface: oklch(100% 0 0);
  --kh-fg: oklch(18% 0.012 250);
  --kh-muted: oklch(54% 0.012 250);
  --kh-border: oklch(92% 0.005 250);
  --kh-accent: oklch(58% 0.18 255);
  --kh-cyan: oklch(76% 0.13 205);
  --kh-green: oklch(70% 0.14 150);
  --kh-navy: oklch(18% 0.05 245);
  --kh-deep: oklch(13% 0.045 245);
  --kh-radius: 8px;
  --kh-shadow: 0 20px 80px oklch(18% 0.03 245 / 0.12);
  --kh-font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", system-ui, sans-serif;
  --kh-font-body: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --primary-blue: var(--kh-accent);
  --brand-blue: var(--kh-accent);
  --brand-green: var(--kh-green);
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--kh-bg);
  color: var(--kh-fg);
  font-family: var(--kh-font-body);
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: 0;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; }
img { display: block; max-width: 100%; }
ul, ol { margin: 0; padding: 0; }

:focus-visible {
  outline: 3px solid color-mix(in oklch, var(--kh-cyan) 70%, white);
  outline-offset: 3px;
}

.kh-shell,
.shell {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}

.kh-section {
  padding: clamp(72px, 9vw, 116px) 0;
  scroll-margin-top: 92px;
}

.kh-section-head {
  display: grid;
  grid-template-columns: minmax(0, .85fr) minmax(260px, .45fr);
  gap: 32px;
  align-items: end;
  margin-bottom: 34px;
}

.kh-kicker {
  margin: 0 0 12px;
  color: var(--kh-accent);
  font-size: 13px;
  font-weight: 760;
  text-transform: uppercase;
  letter-spacing: .13em;
}

.kh-title {
  margin: 0;
  font-family: var(--kh-font-display);
  font-size: clamp(32px, 4vw, 56px);
  line-height: 1.05;
  font-weight: 760;
  text-wrap: balance;
}

.kh-note {
  margin: 0;
  color: var(--kh-muted);
  font-size: 16px;
  line-height: 1.7;
}

.kh-button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border-radius: 999px;
  border: 1px solid color-mix(in oklch, white 18%, transparent);
  padding: 0 18px;
  font-weight: 680;
  transition: transform .18s ease, border-color .18s ease, background .18s ease, color .18s ease;
}

.kh-button:hover { transform: translateY(-2px); }

.kh-button-primary {
  border-color: transparent;
  background: var(--kh-accent);
  color: white;
  box-shadow: 0 18px 48px oklch(58% 0.18 255 / .32);
}

.kh-button-secondary {
  color: white;
  background: color-mix(in oklch, white 8%, transparent);
}

.kh-button-light {
  color: var(--kh-fg);
  border-color: var(--kh-border);
  background: var(--kh-surface);
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  border-bottom: 1px solid transparent;
  transition: background .25s ease, border-color .25s ease, backdrop-filter .25s ease;
}

.site-header.is-scrolled,
.site-header:focus-within {
  border-color: var(--kh-border);
  background: color-mix(in oklch, var(--kh-surface) 88%, transparent);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.kh-nav {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brandmark {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  color: white;
}

.site-header.is-scrolled .brandmark,
.site-header:focus-within .brandmark { color: var(--kh-fg); }

.brand-icon,
.brand-logo-img {
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  border-radius: 10px;
}

.brand-icon {
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, color-mix(in oklch, var(--kh-accent), white 6%), var(--kh-cyan));
  color: white;
  font-weight: 800;
  box-shadow: 0 12px 36px oklch(58% 0.18 255 / .26);
}

.brand-logo-img { object-fit: contain; }

.brand-name {
  display: grid;
  gap: 2px;
  line-height: 1.1;
}

.brand-name strong {
  font-family: var(--kh-font-display);
  font-size: 16px;
  font-weight: 750;
  white-space: nowrap;
}

.brand-name span {
  color: color-mix(in oklch, currentColor 70%, transparent);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .12em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px;
  border: 1px solid color-mix(in oklch, white 16%, transparent);
  border-radius: 999px;
  background: color-mix(in oklch, white 8%, transparent);
  color: color-mix(in oklch, white 84%, transparent);
}

.site-header.is-scrolled .nav-links,
.site-header:focus-within .nav-links {
  color: var(--kh-muted);
  background: color-mix(in oklch, var(--kh-surface) 86%, transparent);
  border-color: var(--kh-border);
}

.nav-links a,
.nav-parent {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 14px;
  border-radius: 999px;
  color: inherit;
  border: 0;
  background: transparent;
  font-size: 14px;
  line-height: 1.25;
  cursor: pointer;
  transition: color .18s ease, background .18s ease;
}

.nav-links a:hover,
.nav-parent:hover,
.nav-item:hover > .nav-parent,
.nav-item:focus-within > .nav-parent {
  color: white;
  background: color-mix(in oklch, var(--kh-accent) 84%, black 6%);
}

.nav-item { position: relative; }

.nav-item::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 100%;
  width: 100%;
  min-width: 190px;
  height: 10px;
  transform: translateX(-50%);
}

.nav-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  z-index: 60;
  display: none;
  min-width: 190px;
  transform: translateX(-50%);
  padding: 8px;
  border: 1px solid var(--kh-border);
  border-radius: 14px;
  background: var(--kh-surface);
  color: var(--kh-fg);
  box-shadow: var(--kh-shadow);
}

.nav-item:hover .nav-dropdown,
.nav-item:focus-within .nav-dropdown { display: grid; gap: 2px; }

.nav-dropdown a {
  display: flex;
  width: 100%;
  justify-content: flex-start;
  color: var(--kh-muted);
  border-radius: 10px;
}

.nav-dropdown a:hover {
  color: white;
  background: var(--kh-accent);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-cta {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  border-radius: 999px;
  color: white;
  background: var(--kh-accent);
  font-size: 14px;
  font-weight: 650;
  box-shadow: 0 12px 32px oklch(58% 0.18 255 / .26);
}

.icon-btn,
.menu-toggle,
.round-btn {
  display: grid;
  place-items: center;
  border: 1px solid color-mix(in oklch, white 22%, transparent);
  border-radius: 999px;
  color: white;
  background: color-mix(in oklch, white 8%, transparent);
  cursor: pointer;
  transition: border-color .18s ease, background .18s ease, color .18s ease;
}

.icon-btn,
.menu-toggle {
  width: 42px;
  height: 42px;
}

.site-header.is-scrolled .icon-btn,
.site-header.is-scrolled .menu-toggle,
.site-header:focus-within .icon-btn,
.site-header:focus-within .menu-toggle {
  color: var(--kh-fg);
  border-color: var(--kh-border);
  background: var(--kh-surface);
}

.menu-toggle { display: none; }
.menu-toggle span {
  display: block;
  width: 16px;
  height: 2px;
  margin: 3px auto;
  border-radius: 2px;
  background: currentColor;
}

.kh-hero {
  position: relative;
  --hero-x: 50%;
  --hero-y: 45%;
  --hero-shift-x: 0px;
  --hero-shift-y: 0px;
  min-height: 100svh;
  overflow: hidden;
  color: white;
  background:
    radial-gradient(circle at 15% 20%, oklch(64% 0.16 220 / .32), transparent 28%),
    radial-gradient(circle at 85% 24%, oklch(70% 0.15 175 / .22), transparent 30%),
    linear-gradient(to bottom, transparent 0 64%, oklch(78% 0.05 220 / .16) 82%, oklch(95% 0.012 230 / .5) 100%),
    linear-gradient(135deg, var(--kh-deep), var(--kh-navy) 52%, oklch(19% 0.065 210));
  isolation: isolate;
}

.kh-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(color-mix(in oklch, white 14%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in oklch, white 12%, transparent) 1px, transparent 1px);
  background-size: 74px 74px;
  opacity: .36;
  transform: perspective(900px) rotateX(62deg) translateY(-130px) scale(1.2);
  transform-origin: 50% 0;
  animation: kh-grid-drift 18s linear infinite;
  mask-image: linear-gradient(to bottom, black 0%, black 70%, transparent 100%);
}

.kh-hero::after {
  content: "";
  position: absolute;
  inset: -20%;
  z-index: -1;
  background:
    radial-gradient(circle at var(--hero-x) var(--hero-y), oklch(76% 0.13 205 / .18), transparent 22%),
    conic-gradient(from 160deg at 45% 55%, transparent, oklch(70% 0.12 200 / .18), transparent 24%),
    linear-gradient(115deg, transparent 20%, oklch(68% 0.16 220 / .18), transparent 46%);
  filter: blur(22px);
  animation: kh-beam 14s ease-in-out infinite alternate;
}

.particle-field {
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: .74;
  background-image:
    radial-gradient(circle at var(--hero-x) var(--hero-y), oklch(76% 0.13 205 / .2), transparent 24%),
    radial-gradient(circle, color-mix(in oklch, white 84%, var(--kh-cyan)) 0 1px, transparent 1.6px),
    linear-gradient(115deg, transparent 0 31%, oklch(76% 0.13 205 / .08) 31.2% 31.6%, transparent 31.8% 100%),
    linear-gradient(65deg, transparent 0 54%, oklch(70% 0.14 150 / .08) 54.2% 54.7%, transparent 55% 100%);
  background-size: auto, 126px 126px, 420px 420px, 520px 520px;
  background-position: 0 0, 18px 26px, 0 0, 60px 40px;
  animation: kh-network-drift 28s linear infinite;
}

.hero-inner {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 120px 0 72px;
}

.hero-copyblock {
  width: min(980px, 100%);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border: 1px solid color-mix(in oklch, white 18%, transparent);
  border-radius: 999px;
  color: color-mix(in oklch, white 76%, var(--kh-cyan));
  background: color-mix(in oklch, white 8%, transparent);
  font-size: 13px;
  font-weight: 620;
}

.eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--kh-green);
  box-shadow: 0 0 0 6px oklch(70% 0.14 150 / .12);
}

.hero-title {
  max-width: 860px;
  margin: 24px 0 0;
  font-family: var(--kh-font-display);
  font-size: clamp(44px, 7vw, 94px);
  line-height: .98;
  font-weight: 780;
  text-wrap: balance;
}

.hero-title span {
  display: block;
  white-space: nowrap;
}

.hero-copy {
  max-width: 690px;
  margin: 24px 0 0;
  color: color-mix(in oklch, white 76%, transparent);
  font-size: clamp(17px, 1.7vw, 22px);
  line-height: 1.72;
  text-wrap: pretty;
}

.hero-focus {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.hero-focus span {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid color-mix(in oklch, var(--kh-cyan) 46%, transparent);
  border-radius: 999px;
  background: color-mix(in oklch, var(--kh-cyan) 13%, transparent);
  color: color-mix(in oklch, white 86%, var(--kh-cyan));
  font-size: 14px;
  font-weight: 720;
  box-shadow: 0 14px 34px oklch(0% 0 0 / .12);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.hero-capability-band {
  width: min(920px, 100%);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  margin-top: clamp(28px, 4vw, 42px);
  border-top: 1px solid color-mix(in oklch, var(--kh-cyan) 28%, transparent);
}

.hero-capability-band article {
  position: relative;
  min-height: 76px;
  padding: 18px 22px 0 0;
}

.hero-capability-band article + article {
  padding-left: 22px;
  border-left: 1px solid color-mix(in oklch, var(--kh-cyan) 16%, transparent);
}

.hero-capability-band span {
  display: block;
  color: var(--kh-cyan);
  font-size: 13px;
  font-weight: 760;
  font-variant-numeric: tabular-nums;
}

.hero-capability-band strong {
  display: block;
  margin-top: 8px;
  color: color-mix(in oklch, white 88%, transparent);
  font-size: clamp(15px, 1.4vw, 18px);
  line-height: 1.32;
  font-weight: 760;
  text-wrap: balance;
}

[data-reveal] {
  opacity: 1;
  transform: translateY(0);
}

.js [data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition:
    opacity .68s ease,
    transform .68s cubic-bezier(.2, .72, .18, 1);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

.js .service-card[data-reveal],
.js .audience-card[data-reveal] {
  transform: translateY(34px) scale(.985);
}

.js .service-card[data-reveal].is-visible,
.js .audience-card[data-reveal].is-visible {
  transform: translateY(0) scale(1);
}

.js .proof-item[data-reveal] {
  transform: translateX(-18px);
}

.js .proof-item[data-reveal].is-visible {
  transform: translateX(0);
}

.service-grid .service-card:nth-child(2),
.proof-row .proof-item:nth-child(2),
.audience-track .audience-card:nth-child(2) { --reveal-delay: 90ms; }

.service-grid .service-card:nth-child(3),
.proof-row .proof-item:nth-child(3),
.audience-track .audience-card:nth-child(3) { --reveal-delay: 180ms; }

.service-grid .service-card:nth-child(4),
.audience-track .audience-card:nth-child(4) { --reveal-delay: 270ms; }

.audience-track .audience-card:nth-child(5) { --reveal-delay: 360ms; }

.trust-metrics {
  position: relative;
  z-index: 1;
  margin-top: -1px;
  border-bottom: 1px solid var(--kh-border);
  background:
    radial-gradient(circle at 24% 0%, oklch(76% 0.13 205 / .11), transparent 32%),
    linear-gradient(180deg, oklch(94% 0.018 225), color-mix(in oklch, white 96%, var(--kh-bg)) 44%, var(--kh-surface));
  padding: clamp(48px, 5.4vw, 72px) 0 0;
}

.trust-metrics-title {
  margin: 0 0 22px;
  color: var(--kh-fg);
  font-family: var(--kh-font-display);
  font-size: clamp(22px, 2.3vw, 30px);
  line-height: 1.18;
  text-align: center;
  font-weight: 780;
}

.trust-metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--kh-border);
  border-inline: 1px solid var(--kh-border);
  background: var(--kh-border);
  gap: 1px;
}

.trust-metric {
  min-height: 110px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(18px, 3vw, 34px);
  padding: 22px;
  background: color-mix(in oklch, var(--kh-surface) 94%, var(--kh-bg));
  color: var(--kh-accent);
  opacity: 1;
  transform: translateY(0);
  transition: opacity .62s ease, transform .62s cubic-bezier(.2, .7, .2, 1), background .18s ease;
}

.trust-metric:nth-child(2) { transition-delay: 90ms; }
.trust-metric:nth-child(3) { transition-delay: 180ms; }

.trust-metric.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.js .trust-metric {
  opacity: 0;
  transform: translateY(18px);
}

.js .trust-metric.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.trust-metric:hover {
  background: color-mix(in oklch, var(--kh-accent) 5%, var(--kh-surface));
}

.trust-metric-icon {
  font-size: clamp(30px, 3vw, 42px);
  font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 40;
}

.trust-metric strong {
  display: block;
  color: var(--kh-accent);
  font-family: var(--kh-font-display);
  font-size: clamp(30px, 3.4vw, 44px);
  line-height: 1;
  font-weight: 780;
  font-variant-numeric: tabular-nums;
}

.trust-metric-label {
  display: block;
  margin-top: 8px;
  color: var(--kh-muted);
  font-size: 15px;
  line-height: 1.3;
  font-weight: 620;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.service-card {
  min-height: 275px;
  padding: 22px;
  border: 1px solid var(--kh-border);
  border-radius: var(--kh-radius);
  background: var(--kh-surface);
  box-shadow: 0 1px 0 oklch(100% 0 0 / .8);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in oklch, var(--kh-accent) 42%, var(--kh-border));
  box-shadow: var(--kh-shadow);
}

.service-card-featured {
  position: relative;
  overflow: hidden;
  border-color: color-mix(in oklch, var(--kh-accent) 34%, var(--kh-border));
  background:
    linear-gradient(135deg, color-mix(in oklch, var(--kh-accent) 9%, transparent), transparent 46%),
    var(--kh-surface);
}

.service-card-featured::after {
  content: "核心";
  position: absolute;
  top: 18px;
  right: 18px;
  padding: 4px 9px;
  border-radius: 999px;
  background: color-mix(in oklch, var(--kh-green) 16%, white);
  color: color-mix(in oklch, var(--kh-green) 70%, var(--kh-fg));
  font-size: 12px;
  font-weight: 760;
}

.service-icon {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  margin-bottom: 28px;
  border-radius: 12px;
  color: white;
  background: linear-gradient(135deg, color-mix(in oklch, var(--kh-accent), black 4%), var(--kh-cyan));
}

.service-icon svg {
  width: 23px;
  height: 23px;
  stroke-width: 1.8;
}

.service-card h3 {
  margin: 0;
  font-size: 20px;
  line-height: 1.2;
  font-weight: 760;
  text-wrap: balance;
}

.service-card p {
  margin: 14px 0 0;
  color: var(--kh-muted);
  line-height: 1.68;
  font-size: 15px;
}

.service-card ul {
  list-style: none;
  display: grid;
  gap: 9px;
  margin: 22px 0 0;
  color: color-mix(in oklch, var(--kh-fg) 80%, var(--kh-muted));
  font-size: 14px;
}

.service-card li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.service-card li::before {
  content: "";
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--kh-green);
}

.proof-band {
  border-block: 1px solid var(--kh-border);
  background: linear-gradient(90deg, color-mix(in oklch, var(--kh-accent) 6%, transparent), transparent 38%), var(--kh-surface);
}

.proof-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--kh-border);
  border-inline: 1px solid var(--kh-border);
}

.proof-item {
  min-height: 150px;
  padding: 28px;
  background: color-mix(in oklch, var(--kh-surface) 94%, var(--kh-bg));
  transition: background .18s ease, transform .18s ease;
}

.proof-item:hover {
  transform: translateY(-2px);
  background: color-mix(in oklch, var(--kh-accent) 5%, var(--kh-surface));
}

.proof-item strong {
  display: block;
  color: var(--kh-fg);
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1;
  font-weight: 780;
}

.proof-item span {
  display: block;
  margin-top: 12px;
  color: var(--kh-muted);
  line-height: 1.55;
  font-size: 14px;
}

.audience-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin: -12px 0 18px;
}

.round-btn {
  width: 42px;
  height: 42px;
  color: var(--kh-fg);
  border-color: var(--kh-border);
  background: var(--kh-surface);
}

.round-btn:hover {
  border-color: color-mix(in oklch, var(--kh-accent) 40%, var(--kh-border));
  background: color-mix(in oklch, var(--kh-accent) 6%, var(--kh-surface));
}

.audience-wrap {
  position: relative;
  overflow: hidden;
}

.audience-track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(260px, 340px);
  gap: 14px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  padding-bottom: 10px;
  scrollbar-width: thin;
}

.audience-card {
  scroll-snap-align: start;
  min-height: 190px;
  padding: 22px;
  border: 1px solid var(--kh-border);
  border-radius: var(--kh-radius);
  background: linear-gradient(180deg, color-mix(in oklch, var(--kh-accent) 5%, transparent), transparent 44%), var(--kh-surface);
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.audience-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in oklch, var(--kh-accent) 42%, var(--kh-border));
  box-shadow: var(--kh-shadow);
}

.audience-card small {
  color: var(--kh-accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.audience-card h3 {
  margin: 18px 0 0;
  font-size: 19px;
  line-height: 1.25;
}

.audience-card p {
  margin: 12px 0 0;
  color: var(--kh-muted);
  line-height: 1.62;
  font-size: 14px;
}

.contact-footer {
  color: white;
  background:
    radial-gradient(circle at 80% 10%, oklch(65% 0.14 215 / .18), transparent 34%),
    linear-gradient(135deg, var(--kh-deep), oklch(15% 0.055 230));
  padding: 18px 0;
}

.footer-note {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  margin-top: 58px;
  padding-top: 0;
  border-top: 1px solid color-mix(in oklch, white 12%, transparent);
  color: color-mix(in oklch, white 52%, transparent);
  font-size: 13px;
}

.footer-note-compact {
  margin-top: 0;
  border-top: 0;
}

.kh-page-hero {
  padding: 132px 0 56px;
  color: white;
  background:
    radial-gradient(circle at 20% 20%, oklch(64% 0.16 220 / .28), transparent 30%),
    linear-gradient(135deg, var(--kh-deep), var(--kh-navy));
}

.kh-page-hero .kh-title {
  max-width: 820px;
  color: white;
}

.kh-page-hero .kh-note {
  max-width: 680px;
  margin-top: 16px;
  color: color-mix(in oklch, white 72%, transparent);
}

.kh-main {
  min-height: 100vh;
  background: var(--kh-bg);
}

.kh-content-layout {
  display: flex;
  gap: 40px;
  padding-block: 48px 80px;
}

.kh-content-panel,
.post-content,
.category-panel {
  min-width: 0;
  flex: 1;
}

.post-content {
  max-width: 880px;
  color: color-mix(in oklch, var(--kh-fg) 86%, var(--kh-muted));
  font-size: 16px;
  line-height: 1.9;
}

.post-content > :first-child { margin-top: 0; }
.post-content h2,
.post-content h3,
.post-content h4 {
  color: var(--kh-fg);
  font-family: var(--kh-font-display);
  line-height: 1.18;
}
.post-content h2 { margin: 36px 0 14px; font-size: 28px; }
.post-content h3 { margin: 30px 0 12px; font-size: 22px; }
.post-content h4 { margin: 24px 0 10px; font-size: 18px; }
.post-content p { margin: 0 0 18px; }
.post-content a { color: var(--kh-accent); border-bottom: 1px solid color-mix(in oklch, var(--kh-accent) 35%, transparent); }
.post-content img { margin: 22px 0; border-radius: 12px; }
.post-content blockquote {
  margin: 22px 0;
  padding: 16px 20px;
  border-left: 4px solid var(--kh-accent);
  border-radius: 0 12px 12px 0;
  background: color-mix(in oklch, var(--kh-accent) 7%, var(--kh-surface));
  color: var(--kh-muted);
}

.post-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
  color: color-mix(in oklch, white 60%, transparent);
  font-size: 14px;
}

.post-meta a:hover { color: white; }

.sidebar-card {
  position: sticky;
  top: 96px;
  padding: 18px;
  border: 1px solid var(--kh-border);
  border-radius: 16px;
  background: var(--kh-surface);
  box-shadow: 0 1px 0 oklch(100% 0 0 / .8);
}

.sidebar-title {
  margin: 0 0 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--kh-border);
  color: var(--kh-fg);
  font-size: 16px;
}

.sidebar-list {
  list-style: none;
  display: grid;
  gap: 4px;
}

.sidebar-link {
  display: block;
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--kh-muted);
  font-size: 14px;
  transition: background .18s ease, color .18s ease;
}

.sidebar-link:hover,
.sidebar-link.is-active {
  color: white;
  background: var(--kh-accent);
}

.sidebar-drawer-trigger {
  position: fixed;
  left: 0;
  top: 50%;
  z-index: 41;
  width: 24px;
  height: 48px;
  transform: translateY(-50%);
  border: 0;
  border-radius: 0 8px 8px 0;
  background: var(--kh-accent);
  color: white;
  cursor: pointer;
}

.sidebar-drawer-trigger.open { left: 16rem; }
.sidebar-drawer-overlay {
  position: fixed;
  inset: 0;
  z-index: 40;
  pointer-events: none;
  opacity: 0;
  background: rgb(0 0 0 / .35);
  transition: opacity .3s ease;
}
.sidebar-drawer-overlay.open {
  opacity: 1;
  pointer-events: auto;
}
.sidebar-drawer-panel {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 50;
  width: 16rem;
  overflow-y: auto;
  transform: translateX(-100%);
  background: var(--kh-surface);
  box-shadow: 4px 0 24px rgb(0 0 0 / .08);
  transition: transform .3s ease;
}
.sidebar-drawer-panel.open { transform: translateX(0); }

.sidebar-drawer-inner { padding: 88px 18px 24px; }

.category-tree,
.post-list {
  list-style: none;
  display: grid;
  gap: 10px;
}

.category-tree li,
.post-list-item {
  border: 1px solid var(--kh-border);
  border-radius: 14px;
  background: var(--kh-surface);
}

.category-tree a,
.post-list-link {
  display: block;
  padding: 18px 20px;
}

.category-tree a:hover,
.post-list-link:hover h2 { color: var(--kh-accent); }

.category-tree ul {
  margin: 0 16px 16px;
  padding-left: 16px;
  border-left: 1px solid var(--kh-border);
  list-style: none;
}

.post-list-title {
  margin: 0;
  font-size: 20px;
  line-height: 1.28;
}

.post-list-excerpt {
  margin: 10px 0 0;
  color: var(--kh-muted);
  font-size: 14px;
  line-height: 1.7;
}

.post-list-time {
  display: block;
  margin-top: 12px;
  color: color-mix(in oklch, var(--kh-muted) 80%, white);
  font-size: 13px;
}

.empty-state {
  padding: 56px 24px;
  border: 1px solid var(--kh-border);
  border-radius: 16px;
  background: var(--kh-surface);
  color: var(--kh-muted);
  text-align: center;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-top: 34px;
}

.pagination a,
.pagination span {
  min-width: 42px;
  padding: 10px 14px;
  border: 1px solid var(--kh-border);
  border-radius: 999px;
  background: var(--kh-surface);
  color: var(--kh-muted);
  text-align: center;
}

.pagination a:hover {
  color: white;
  border-color: var(--kh-accent);
  background: var(--kh-accent);
}

.lang-toggle button.active { background: var(--kh-accent); color: #fff; }
.lang-toggle button:not(.active) { color: var(--kh-muted); background: transparent; }
.lang-toggle button:not(.active):hover { color: var(--kh-accent); }

@keyframes kh-grid-drift {
  from { background-position: 0 0, 0 0; }
  to { background-position: 0 74px, 74px 0; }
}

@keyframes kh-beam {
  from { transform: translate3d(-4%, -2%, 0) rotate(-3deg); opacity: .6; }
  to { transform: translate3d(4%, 3%, 0) rotate(4deg); opacity: .9; }
}

@keyframes kh-network-drift {
  from { background-position: 0 0, 18px 26px, 0 0, 60px 40px; }
  to { background-position: 0 0, 144px 152px, 420px 420px, 580px 560px; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .001ms !important;
  }

  .js [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
  }
}

@media (max-width: 1020px) {
  .kh-section-head { grid-template-columns: 1fr; }
  .hero-inner { padding-top: 112px; }
  .service-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kh-content-layout { display: block; }
}

@media (max-width: 760px) {
  .kh-shell,
  .shell { width: min(100% - 28px, 1180px); }
  .kh-nav { height: 64px; }
  .brand-name strong { font-size: 14px; }
  .brand-name span { display: none; }
  .menu-toggle { display: grid; }
  .nav-cta { display: none; }
  .icon-btn { display: none; }
  .nav-links {
    position: fixed;
    left: 14px;
    right: 14px;
    top: 74px;
    display: none;
    align-items: stretch;
    flex-direction: column;
    border-radius: 18px;
    padding: 10px;
    color: var(--kh-fg);
    background: var(--kh-surface);
    border-color: var(--kh-border);
    box-shadow: var(--kh-shadow);
  }
  .nav-links.is-open { display: flex; }
  .nav-links a,
  .nav-parent {
    width: 100%;
    justify-content: flex-start;
    padding: 13px 14px;
  }
  .nav-item { width: 100%; }
  .nav-item::after { display: none; }
  .nav-dropdown {
    position: static;
    display: grid;
    transform: none;
    min-width: 0;
    margin: 2px 0 8px 12px;
    padding: 0;
    border: 0;
    background: transparent;
    box-shadow: none;
  }
  .nav-dropdown a {
    color: var(--kh-muted);
    padding: 9px 12px;
  }
  .hero-title { font-size: clamp(36px, 10vw, 46px); }
  .hero-inner { min-height: auto; padding: 104px 0 52px; }
  .hero-capability-band { grid-template-columns: 1fr; }
  .hero-capability-band article,
  .hero-capability-band article + article {
    min-height: 66px;
    padding: 14px 0 0;
    border-left: 0;
    border-top: 1px solid color-mix(in oklch, var(--kh-cyan) 14%, transparent);
  }
  .hero-capability-band article:first-child { border-top: 0; }
  .trust-metrics { padding-top: 28px; }
  .trust-metrics-grid { grid-template-columns: 1fr; }
  .trust-metric {
    min-height: 96px;
    justify-content: flex-start;
  }
  .service-grid,
  .proof-row { grid-template-columns: 1fr; }
  .service-card { min-height: auto; }
  .proof-item { min-height: 126px; }
  .audience-track { grid-auto-columns: minmax(246px, 86vw); }
  .kh-page-hero { padding-top: 104px; }
}

@media (max-width: 430px) {
  .brand-icon,
  .brand-logo-img {
    width: 34px;
    height: 34px;
    border-radius: 9px;
  }
  .hero-actions { display: grid; }
  .kh-button { width: 100%; }
}