/* ==========================================================================
   KAIYUN赛场 — /assets/site.css
   共享外壳：框架式页头、底部快捷导航、页脚、基础组件与动效协议
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body { margin: 0; }

h1, h2, h3, h4, h5, p, figure, blockquote { margin: 0; }

ul, ol { margin: 0; padding: 0; list-style: none; }

img, svg, video { display: block; max-width: 100%; }

a { color: inherit; }

button { font: inherit; color: inherit; }

/* ---------- tokens ---------- */
:root {
  --kx-ink: #0A1628;
  --kx-ink-2: #12233D;
  --kx-paper: #F3EBDD;
  --kx-coal: #17110D;
  --kx-cyan: #3DF2D4;
  --kx-orange: #FF5A1F;
  --kx-violet: #8B5CF6;
  --kx-amber: #FFC24B;
  --kx-mist: #93A7C4;

  --kx-line: rgba(147, 167, 196, 0.22);
  --kx-line-soft: rgba(147, 167, 196, 0.14);
  --kx-line-strong: rgba(61, 242, 212, 0.45);
  --kx-glass: rgba(18, 35, 61, 0.62);

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

  --kx-rail-w: 268px;
  --kx-shell: 1120px;
  --kx-gutter: clamp(20px, 5vw, 64px);
  --kx-radius: 14px;
  --kx-radius-lg: 22px;
  --kx-ease: cubic-bezier(0.22, 0.68, 0.35, 1);
}

/* ---------- page canvas ---------- */
body {
  position: relative;
  padding-left: 0;
  background-color: var(--kx-ink);
  background-image:
    repeating-linear-gradient(0deg, rgba(147, 167, 196, 0.055) 0 1px, transparent 1px 92px),
    repeating-linear-gradient(90deg, rgba(147, 167, 196, 0.055) 0 1px, transparent 1px 92px),
    radial-gradient(115% 72% at 84% -12%, rgba(61, 242, 212, 0.13), transparent 62%),
    radial-gradient(90% 66% at 4% 16%, rgba(139, 92, 246, 0.11), transparent 64%),
    linear-gradient(180deg, #0A1628 0%, #08111F 58%, #0A1628 100%);
  background-attachment: fixed;
  color: var(--kx-paper);
  font-family: var(--kx-font);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.7;
  letter-spacing: 0.005em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

::selection { background: var(--kx-cyan); color: var(--kx-ink); }

:focus-visible {
  outline: 2px solid var(--kx-violet);
  outline-offset: 3px;
  border-radius: 4px;
}

.kx-main { display: block; min-height: 60vh; }

.kx-container {
  width: 100%;
  max-width: var(--kx-shell);
  margin-inline: auto;
  padding-inline: var(--kx-gutter);
}

/* ---------- skip link ---------- */
.kx-skip {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 200;
  transform: translateY(-200%);
  padding: 12px 18px;
  border-radius: 999px;
  background: var(--kx-paper);
  color: var(--kx-coal);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.22s var(--kx-ease);
}

.kx-skip:focus { transform: none; }

/* ---------- header shell ---------- */
.kx-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: linear-gradient(180deg, rgba(10, 22, 40, 0.97), rgba(10, 22, 40, 0.78));
  border-bottom: 1px solid var(--kx-line);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  transition: border-color 0.3s var(--kx-ease), background 0.3s var(--kx-ease);
}

.kx-header[data-scrolled="true"] {
  border-bottom-color: rgba(61, 242, 212, 0.34);
}

/* ---------- mobile topbar ---------- */
.kx-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  max-width: var(--kx-shell);
  margin-inline: auto;
  padding: 10px 16px;
}

.kx-topbar__brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 44px;
  color: var(--kx-paper);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.kx-brand__pulse {
  flex: none;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--kx-cyan);
  box-shadow: 0 0 0 0 rgba(61, 242, 212, 0.55);
  animation: kx-pulse 2.6s var(--kx-ease) infinite;
}

@keyframes kx-pulse {
  0% { box-shadow: 0 0 0 0 rgba(61, 242, 212, 0.55); }
  70% { box-shadow: 0 0 0 12px rgba(61, 242, 212, 0); }
  100% { box-shadow: 0 0 0 0 rgba(61, 242, 212, 0); }
}

.kx-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 8px 16px;
  border: 1px solid var(--kx-line-strong);
  border-radius: 999px;
  background: rgba(61, 242, 212, 0.08);
  color: var(--kx-cyan);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}

.kx-toggle:hover { background: rgba(61, 242, 212, 0.16); }

.kx-toggle__bars {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  box-shadow: 0 -6px 0 currentColor, 0 6px 0 currentColor;
  transition: box-shadow 0.2s var(--kx-ease), transform 0.2s var(--kx-ease);
}

.kx-header[data-open="true"] .kx-toggle__bars {
  box-shadow: 0 0 0 currentColor;
  transform: rotate(45deg);
}

.kx-toggle__label { white-space: nowrap; }

/* ---------- brand block (desktop rail) ---------- */
.kx-brand,
.kx-status,
.kx-quick,
.kx-cta { display: none; }

/* ---------- navigation: mobile bottom dock ---------- */
.kx-nav {
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: 12px;
  z-index: 75;
  padding: 16px;
  border: 1px solid var(--kx-line);
  border-radius: var(--kx-radius-lg);
  background: rgba(18, 35, 61, 0.96);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  visibility: hidden;
  opacity: 0;
  transform: translateY(calc(100% + 26px));
  transition: transform 0.36s var(--kx-ease), opacity 0.26s ease, visibility 0s linear 0.36s;
}

.kx-nav[data-open="true"] {
  visibility: visible;
  opacity: 1;
  transform: none;
  transition: transform 0.36s var(--kx-ease), opacity 0.26s ease, visibility 0s linear 0s;
}

.kx-nav[data-hidden="true"]:not([data-open="true"]) {
  transform: translateY(calc(100% + 26px));
  opacity: 0;
}

.kx-nav__title {
  margin-bottom: 12px;
  color: var(--kx-mist);
  font-size: 12px;
  letter-spacing: 0.22em;
}

.kx-nav__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
}

.kx-nav__link {
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid var(--kx-line-soft);
  border-radius: 12px;
  background: rgba(243, 235, 221, 0.05);
  color: var(--kx-paper);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.kx-nav__link::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.35;
  transition: opacity 0.2s, box-shadow 0.2s;
}

.kx-nav__link:hover {
  color: var(--kx-cyan);
  background: rgba(61, 242, 212, 0.1);
}

.kx-nav__link[aria-current="page"] {
  color: var(--kx-cyan);
  border-left-color: var(--kx-cyan);
  background: linear-gradient(90deg, rgba(61, 242, 212, 0.16), rgba(61, 242, 212, 0.03));
}

.kx-nav__link[aria-current="page"]::before {
  opacity: 1;
  box-shadow: 0 0 0 4px rgba(61, 242, 212, 0.16);
}

/* ---------- scroll progress ---------- */
.kx-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 90;
  height: 3px;
  background: rgba(147, 167, 196, 0.12);
  pointer-events: none;
}

.kx-progress__bar {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--kx-cyan), var(--kx-violet) 58%, var(--kx-orange));
  transition: width 0.12s linear;
}

/* ---------- desktop: framework rail ---------- */
@media (min-width: 1024px) {
  body { padding-left: var(--kx-rail-w); }

  .kx-header {
    position: fixed;
    inset: 0 auto 0 0;
    width: var(--kx-rail-w);
    height: 100vh;
    display: flex;
    flex-direction: column;
    gap: 22px;
    padding: 28px 22px 24px;
    border-bottom: 0;
    border-right: 1px solid var(--kx-line);
    background: linear-gradient(180deg, rgba(18, 35, 61, 0.94), rgba(9, 18, 33, 0.9));
    overflow-y: auto;
    transition: padding 0.3s var(--kx-ease), gap 0.3s var(--kx-ease), border-color 0.3s var(--kx-ease);
  }

  .kx-header[data-condensed="true"] {
    gap: 14px;
    padding: 20px 20px 20px;
    border-right-color: rgba(61, 242, 212, 0.24);
  }

  .kx-header[data-condensed="true"] .kx-brand__sub,
  .kx-header[data-condensed="true"] .kx-nav__title,
  .kx-header[data-condensed="true"] .kx-status__meta,
  .kx-header[data-condensed="true"] .kx-quick { display: none; }

  .kx-topbar { display: none; }

  .kx-brand {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--kx-line);
    color: inherit;
    text-decoration: none;
  }

  .kx-brand__line { display: flex; align-items: center; gap: 10px; }

  .kx-brand__mark {
    font-size: 22px;
    font-weight: 900;
    letter-spacing: -0.02em;
    line-height: 1.1;
  }

  .kx-brand__mark em { font-style: normal; color: var(--kx-cyan); }

  .kx-brand__sub {
    color: var(--kx-mist);
    font-size: 12.5px;
    letter-spacing: 0.06em;
  }

  .kx-nav {
    position: static;
    visibility: visible;
    opacity: 1;
    transform: none;
    transition: none;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }

  .kx-nav__title { margin-bottom: 10px; }

  .kx-nav__list {
    display: flex;
    flex-direction: column;
    gap: 2px;
  }

  .kx-nav__link {
    min-height: 46px;
    padding: 9px 10px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0 10px 10px 0;
    background: transparent;
    font-size: 16px;
  }

  .kx-nav__link:hover {
    background: rgba(61, 242, 212, 0.07);
  }

  .kx-nav__link[aria-current="page"] {
    border-left-color: var(--kx-cyan);
    background: linear-gradient(90deg, rgba(61, 242, 212, 0.16), transparent 82%);
  }

  .kx-status {
    display: block;
    padding: 14px;
    border: 1px solid var(--kx-line-soft);
    border-radius: var(--kx-radius);
    background: rgba(61, 242, 212, 0.05);
  }

  .kx-status__head {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--kx-mist);
    font-size: 12px;
    letter-spacing: 0.2em;
  }

  .kx-status__dot {
    flex: none;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--kx-cyan);
    box-shadow: 0 0 10px var(--kx-cyan);
  }

  .kx-status__value {
    margin-top: 9px;
    color: var(--kx-paper);
    font-family: var(--kx-mono);
    font-size: 14px;
    letter-spacing: 0.02em;
  }

  .kx-status__meta {
    margin-top: 4px;
    color: var(--kx-mist);
    font-size: 12.5px;
  }

  .kx-quick { display: block; }

  .kx-quick__title {
    margin-bottom: 9px;
    color: var(--kx-mist);
    font-size: 12px;
    letter-spacing: 0.2em;
  }

  .kx-quick__list { display: flex; flex-wrap: wrap; gap: 6px; }

  .kx-quick__link {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    padding: 6px 13px;
    border: 1px solid var(--kx-line-soft);
    border-radius: 999px;
    color: var(--kx-paper);
    font-size: 13.5px;
    text-decoration: none;
    transition: color 0.2s, border-color 0.2s, background 0.2s;
  }

  .kx-quick__link:hover {
    color: var(--kx-cyan);
    border-color: var(--kx-line-strong);
    background: rgba(61, 242, 212, 0.08);
  }

  .kx-cta {
    display: inline-flex;
    margin-top: auto;
    width: 100%;
  }
}

@media (min-width: 1024px) and (max-height: 760px) {
  .kx-header { gap: 14px; padding: 20px 20px; }
  .kx-status__meta { display: none; }
}

/* ---------- buttons ---------- */
.kx-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: inherit;
  font-size: 15.5px;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s var(--kx-ease), background 0.2s, color 0.2s, border-color 0.2s;
}

.kx-btn--primary {
  background: var(--kx-orange);
  color: #1B0A02;
  box-shadow: 0 14px 32px rgba(255, 90, 31, 0.26);
}

.kx-btn--primary:hover { background: #FF6E3A; transform: translateY(-2px); }

.kx-btn--ghost {
  border-color: var(--kx-line-strong);
  background: rgba(61, 242, 212, 0.06);
  color: var(--kx-cyan);
}

.kx-btn--ghost:hover { background: rgba(61, 242, 212, 0.15); transform: translateY(-2px); }

.kx-btn--quiet {
  border-color: var(--kx-line);
  background: transparent;
  color: var(--kx-paper);
}

.kx-btn--quiet:hover { border-color: var(--kx-cyan); color: var(--kx-cyan); }

/* ---------- typography components ---------- */
.kx-display {
  font-size: clamp(46px, 12vw, 132px);
  font-weight: 900;
  line-height: 0.96;
  letter-spacing: -0.03em;
}

.kx-display__accent { color: var(--kx-orange); }

.kx-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--kx-mist);
  font-size: 12.5px;
  letter-spacing: 0.24em;
}

.kx-section {
  position: relative;
  padding-block: clamp(56px, 9vw, 110px);
  scroll-margin-top: 96px;
}

.kx-section__no {
  display: block;
  margin-bottom: 14px;
  color: var(--kx-cyan);
  font-family: var(--kx-mono);
  font-size: 13px;
  letter-spacing: 0.22em;
}

.kx-section__title {
  font-size: clamp(30px, 5vw, 56px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.kx-section__lead {
  margin-top: 18px;
  max-width: 42ch;
  color: rgba(243, 235, 221, 0.82);
  font-size: 17px;
}

.kx-prose { max-width: 40ch; }

.kx-prose p + p { margin-top: 1.05em; }

.kx-prose ul,
.kx-prose ol {
  margin-top: 1.05em;
  padding-left: 1.35em;
  list-style: disc;
}

.kx-prose li + li { margin-top: 0.4em; }

.kx-rule {
  height: 1px;
  border: 0;
  background: linear-gradient(90deg, var(--kx-cyan), rgba(61, 242, 212, 0.06) 70%, transparent);
}

/* ---------- surfaces ---------- */
.kx-glass {
  border: 1px solid var(--kx-line);
  border-radius: var(--kx-radius-lg);
  background: var(--kx-glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.kx-paper {
  border-radius: var(--kx-radius-lg);
  background: var(--kx-paper);
  color: var(--kx-coal);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.32);
}

.kx-paper h2,
.kx-paper h3,
.kx-paper h4 { color: var(--kx-coal); }

/* ---------- grid ---------- */
.kx-grid {
  display: grid;
  gap: clamp(18px, 3vw, 30px);
  grid-template-columns: 1fr;
}

@media (min-width: 720px) {
  .kx-grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kx-grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 1080px) {
  .kx-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* ---------- breadcrumb ---------- */
.kx-breadcrumb {
  color: var(--kx-mist);
  font-size: 13px;
}

.kx-breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.kx-breadcrumb__item {
  display: inline-flex;
  align-items: center;
}

.kx-breadcrumb__item + .kx-breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: rgba(147, 167, 196, 0.5);
}

.kx-breadcrumb a {
  color: var(--kx-mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.kx-breadcrumb a:hover {
  color: var(--kx-cyan);
  border-bottom-color: var(--kx-cyan);
}

.kx-breadcrumb [aria-current="page"] { color: var(--kx-paper); }

/* ---------- media slots ---------- */
.kx-media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--kx-line-soft);
  border-radius: var(--kx-radius-lg);
  background-image:
    repeating-linear-gradient(115deg, rgba(61, 242, 212, 0.09) 0 2px, transparent 2px 26px),
    linear-gradient(135deg, rgba(61, 242, 212, 0.2), transparent 52%),
    linear-gradient(315deg, rgba(255, 90, 31, 0.22), transparent 58%),
    linear-gradient(180deg, #12233D, #0A1628);
  aspect-ratio: 16 / 10;
}

.kx-media > img,
.kx-media > video,
.kx-media > picture {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.kx-media--wide { aspect-ratio: 21 / 9; }
.kx-media--tall { aspect-ratio: 3 / 4; }
.kx-media--square { aspect-ratio: 1 / 1; }

.kx-media__caption {
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 14px;
  padding: 9px 13px;
  border-radius: 12px;
  background: rgba(10, 22, 40, 0.74);
  color: var(--kx-paper);
  font-size: 13px;
  line-height: 1.5;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

/* ---------- tags ---------- */
.kx-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border: 1px solid var(--kx-line);
  border-radius: 999px;
  color: var(--kx-mist);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.kx-tag--cyan { color: var(--kx-cyan); border-color: rgba(61, 242, 212, 0.42); }
.kx-tag--orange { color: var(--kx-orange); border-color: rgba(255, 90, 31, 0.42); }
.kx-tag--amber { color: var(--kx-amber); border-color: rgba(255, 194, 75, 0.42); }

/* ---------- stats ---------- */
.kx-stat { display: flex; flex-direction: column; gap: 4px; }

.kx-stat__value {
  color: var(--kx-cyan);
  font-family: var(--kx-mono);
  font-size: clamp(28px, 5vw, 46px);
  font-weight: 700;
  letter-spacing: 0.01em;
  line-height: 1.1;
}

.kx-stat__label {
  color: var(--kx-mist);
  font-size: 13px;
  letter-spacing: 0.1em;
}

/* ---------- reveal protocol ---------- */
.kx-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.62s var(--kx-ease), transform 0.62s var(--kx-ease);
}

.kx-reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- footer ---------- */
.kx-footer {
  position: relative;
  margin-top: clamp(64px, 10vw, 130px);
  border-top: 1px solid var(--kx-line);
  background: linear-gradient(180deg, rgba(18, 35, 61, 0.92), rgba(8, 16, 30, 0.99));
  color: var(--kx-paper);
}

.kx-footer::before {
  content: "";
  display: block;
  height: 4px;
  background: linear-gradient(90deg, var(--kx-cyan) 0 32%, var(--kx-violet) 32% 58%, var(--kx-orange) 58% 100%);
}

.kx-footer__inner {
  width: 100%;
  max-width: var(--kx-shell);
  margin-inline: auto;
  padding: clamp(44px, 7vw, 82px) var(--kx-gutter) 34px;
}

.kx-footer__top {
  display: grid;
  gap: 40px;
  grid-template-columns: 1fr;
}

@media (min-width: 900px) {
  .kx-footer__top { grid-template-columns: 1fr 1.4fr; gap: 56px; }
}

.kx-footer__mark {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 900;
  letter-spacing: -0.02em;
}

.kx-footer__tagline {
  margin-top: 8px;
  color: var(--kx-cyan);
  font-size: 14px;
  letter-spacing: 0.08em;
}

.kx-footer__note {
  margin-top: 16px;
  max-width: 46ch;
  color: var(--kx-mist);
  font-size: 14px;
  line-height: 1.75;
}

.kx-footer__cols {
  display: grid;
  gap: 30px;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.kx-footer__coltitle {
  margin-bottom: 12px;
  color: var(--kx-mist);
  font-size: 12px;
  letter-spacing: 0.22em;
}

.kx-footer__links li + li { margin-top: 2px; }

.kx-footer__links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--kx-paper);
  font-size: 15px;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.kx-footer__links a:hover {
  color: var(--kx-cyan);
  border-bottom-color: var(--kx-cyan);
}

.kx-contact li + li { margin-top: 6px; }

.kx-contact__item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 14px;
}

.kx-contact__label {
  min-width: 3.4em;
  color: var(--kx-mist);
  font-size: 12px;
  letter-spacing: 0.16em;
}

.kx-contact__value {
  color: var(--kx-paper);
  font-family: var(--kx-mono);
  font-size: 13.5px;
  letter-spacing: 0.02em;
  word-break: break-all;
}

.kx-contact__value--text {
  font-family: var(--kx-font);
  font-size: 14px;
  word-break: normal;
}

.kx-copy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 4px 14px;
  border: 1px solid var(--kx-line);
  border-radius: 999px;
  background: transparent;
  color: var(--kx-mist);
  font-size: 12px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.kx-copy:hover {
  color: var(--kx-cyan);
  border-color: var(--kx-line-strong);
  background: rgba(61, 242, 212, 0.08);
}

.kx-copy[data-copied="true"] {
  color: var(--kx-ink);
  border-color: var(--kx-cyan);
  background: var(--kx-cyan);
}

.kx-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 24px;
  margin-top: clamp(34px, 5vw, 56px);
  padding-top: 22px;
  border-top: 1px solid var(--kx-line-soft);
  color: var(--kx-mist);
  font-size: 13px;
}

.kx-footer__record {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.kx-footer__record span {
  color: var(--kx-paper);
  font-family: var(--kx-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
}

.kx-footer__copy {
  font-family: var(--kx-mono);
  font-size: 12.5px;
  letter-spacing: 0.02em;
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .kx-brand__pulse { animation: none; }

  .kx-reveal {
    opacity: 1;
    transform: none;
  }
}