/* ==========================================================================
   云开体育 · 共享样式 /assets/site.css
   深夜场地绿 + 荧光电子黄 + 精密网格
   ========================================================================== */

/* 1. Reset ---------------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

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

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

img, svg, video { max-width: 100%; height: auto; }

button { font: inherit; color: inherit; background: none; border: 0; }

a { color: inherit; }

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

/* 2. Tokens --------------------------------------------------------------- */
:root {
  --ky-night:   #0B1F19;
  --ky-turf:    #14302A;
  --ky-cream:   #F2EAD9;
  --ky-white:   #E8F1EE;
  --ky-volt:    #D8F53C;
  --ky-ember:   #E0563B;
  --ky-azure:   #3C6BE0;
  --ky-grid:    #3A5A50;
  --ky-muted:   #94A8A1;
  --ky-archive: #D9C9A3;

  --ky-shell: 1240px;
  --ky-gutter: clamp(18px, 4vw, 48px);
  --ky-hair: 1px solid rgba(58, 90, 80, .85);
  --ky-hair-soft: 1px solid rgba(58, 90, 80, .45);

  --ky-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", SimSun, serif;
  --ky-sans:  "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --ky-mono:  "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --ky-cond:  "Oswald", "DIN Condensed", "Arial Narrow", var(--ky-sans);

  --ky-ease: cubic-bezier(.22, .61, .36, 1);
  --ky-head-static: 122px;
}

/* 3. Base typography ------------------------------------------------------ */
body {
  background: var(--ky-night);
  color: var(--ky-white);
  font-family: var(--ky-sans);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--ky-serif);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: .02em;
}

h1 { font-size: clamp(2.1rem, 5.4vw, 4.1rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.35rem); }
h3 { font-size: clamp(1.15rem, 1.9vw, 1.5rem); }

p { max-width: 74ch; }

strong { color: var(--ky-volt); font-weight: 700; }

::selection { background: var(--ky-volt); color: var(--ky-night); }

:focus-visible {
  outline: 2px solid var(--ky-volt);
  outline-offset: 3px;
}

/* 4. Layout --------------------------------------------------------------- */
.ky-shell {
  width: 100%;
  max-width: var(--ky-shell);
  margin-inline: auto;
  padding-inline: var(--ky-gutter);
}

.ky-section { padding-block: clamp(48px, 7vw, 96px); }
.ky-section--turf { background: var(--ky-turf); }

.ky-grid { display: grid; gap: clamp(20px, 2.4vw, 32px); }
.ky-grid--12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }

.ky-col-1  { grid-column: span 1; }
.ky-col-2  { grid-column: span 2; }
.ky-col-3  { grid-column: span 3; }
.ky-col-4  { grid-column: span 4; }
.ky-col-5  { grid-column: span 5; }
.ky-col-6  { grid-column: span 6; }
.ky-col-7  { grid-column: span 7; }
.ky-col-8  { grid-column: span 8; }
.ky-col-9  { grid-column: span 9; }
.ky-col-10 { grid-column: span 10; }
.ky-col-11 { grid-column: span 11; }
.ky-col-12 { grid-column: span 12; }

.ky-col-start-2 { grid-column-start: 2; }
.ky-col-start-7 { grid-column-start: 7; }

.ky-rule {
  height: 1px;
  border: 0;
  background: var(--ky-grid);
}

.ky-glow {
  box-shadow: 0 0 0 1px rgba(216, 245, 60, .32), 0 0 30px rgba(216, 245, 60, .16);
}

/* 5. Text utilities ------------------------------------------------------- */
.ky-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--ky-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ky-volt);
}

.ky-eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--ky-volt);
}

.ky-lead {
  font-size: clamp(16px, 1.5vw, 18.5px);
  color: var(--ky-white);
  max-width: 62ch;
}

.ky-muted { color: var(--ky-muted); }

.ky-link {
  color: var(--ky-white);
  text-decoration: underline;
  text-decoration-color: var(--ky-grid);
  text-underline-offset: 4px;
  transition: color .18s var(--ky-ease), text-decoration-color .18s var(--ky-ease);
}

.ky-link:hover {
  color: var(--ky-volt);
  text-decoration-color: var(--ky-volt);
}

/* 6. Tags ----------------------------------------------------------------- */
.ky-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border: 1px solid var(--ky-grid);
  color: var(--ky-muted);
  font-family: var(--ky-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  line-height: 1.6;
  text-transform: uppercase;
  white-space: nowrap;
}

.ky-tag--live {
  color: var(--ky-ember);
  border-color: rgba(224, 86, 59, .62);
  background: rgba(224, 86, 59, .12);
}

.ky-tag--home { color: var(--ky-ember); border-color: rgba(224, 86, 59, .5); }
.ky-tag--away { color: var(--ky-azure); border-color: rgba(60, 107, 224, .6); }

.ky-tag--volt {
  color: var(--ky-night);
  background: var(--ky-volt);
  border-color: var(--ky-volt);
  font-weight: 700;
}

.ky-tag--archive { color: var(--ky-archive); border-color: rgba(217, 201, 163, .5); }

/* 7. Buttons -------------------------------------------------------------- */
.ky-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .6em;
  padding: 12px 20px;
  border: 1px solid var(--ky-grid);
  background: transparent;
  color: var(--ky-white);
  font-family: var(--ky-sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .05em;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background .2s var(--ky-ease), color .2s var(--ky-ease),
              border-color .2s var(--ky-ease), box-shadow .2s var(--ky-ease);
}

.ky-btn--volt {
  background: var(--ky-volt);
  border-color: var(--ky-volt);
  color: var(--ky-night);
  font-weight: 700;
}

.ky-btn--volt:hover {
  background: var(--ky-white);
  border-color: var(--ky-white);
  box-shadow: 0 0 26px rgba(216, 245, 60, .3);
}

.ky-btn--ghost { color: var(--ky-white); }
.ky-btn--ghost:hover {
  border-color: var(--ky-volt);
  color: var(--ky-volt);
}

/* 8. Breadcrumbs ---------------------------------------------------------- */
.ky-crumbs { padding-block: 18px; }

.ky-crumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--ky-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ky-muted);
}

.ky-crumbs__item + .ky-crumbs__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--ky-grid);
}

.ky-crumbs__link {
  color: var(--ky-muted);
  text-decoration: none;
  transition: color .18s var(--ky-ease);
}

.ky-crumbs__link:hover { color: var(--ky-volt); }

.ky-crumbs__item[aria-current="page"] { color: var(--ky-white); }

/* 9. Panels & figures ----------------------------------------------------- */
.ky-panel {
  background: var(--ky-turf);
  border: var(--ky-hair-soft);
  padding: clamp(18px, 2.2vw, 28px);
}

.ky-panel--volt {
  border-color: rgba(216, 245, 60, .45);
  box-shadow: 0 0 26px rgba(216, 245, 60, .12);
}

.ky-figure {
  position: relative;
  display: block;
  overflow: hidden;
  margin: 0;
  background: var(--ky-turf);
  border: var(--ky-hair-soft);
}

.ky-figure__media {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.85) contrast(1.06);
}

.ky-figure__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 14px 16px;
  background: linear-gradient(180deg, rgba(11, 31, 25, 0), rgba(11, 31, 25, .9));
  color: var(--ky-white);
  font-family: var(--ky-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
}

.ky-figure--pan      { aspect-ratio: 21 / 9; }
.ky-figure--wide     { aspect-ratio: 16 / 9; }
.ky-figure--square   { aspect-ratio: 1 / 1; }
.ky-figure--tall     { aspect-ratio: 3 / 4; }
.ky-figure--portrait { aspect-ratio: 4 / 5; }

/* 10. Reveal motion ------------------------------------------------------- */
.ky-reveal { opacity: 1; transform: none; }

.ky-js .ky-reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .62s var(--ky-ease), transform .62s var(--ky-ease);
  will-change: opacity, transform;
}

.ky-js .ky-reveal.is-in {
  opacity: 1;
  transform: none;
}

/* 11. Header -------------------------------------------------------------- */
.ky-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: var(--ky-night);
  border-bottom: var(--ky-hair);
}

.ky-skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  padding: 10px 18px;
  background: var(--ky-volt);
  color: var(--ky-night);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.ky-skip:focus { left: 12px; top: 12px; }

.ky-topbar {
  max-height: 130px;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(20, 48, 42, .92), rgba(11, 31, 25, .5));
  border-bottom: 1px solid rgba(58, 90, 80, .6);
  transition: max-height .36s var(--ky-ease), opacity .22s linear,
              border-color .22s linear;
}

.ky-header--compact .ky-topbar {
  max-height: 0;
  opacity: 0;
  border-color: transparent;
}

.ky-topbar__inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: clamp(14px, 2vw, 34px);
  padding-block: 10px;
}

.ky-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  white-space: nowrap;
}

.ky-brand__mark {
  flex: none;
  width: 9px;
  height: 22px;
  background: var(--ky-volt);
  box-shadow: 0 0 14px rgba(216, 245, 60, .45);
}

.ky-brand__name {
  font-family: var(--ky-serif);
  font-size: 19px;
  font-weight: 800;
  letter-spacing: .1em;
  color: var(--ky-white);
}

.ky-brand__line {
  margin: 0;
  max-width: none;
  padding-left: 16px;
  border-left: 1px solid var(--ky-grid);
  color: var(--ky-muted);
  font-size: 13px;
  letter-spacing: .04em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ky-meta {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 26px);
}

.ky-meta__item {
  display: flex;
  align-items: baseline;
  gap: 8px;
  text-decoration: none;
}

.ky-meta__key {
  font-family: var(--ky-mono);
  font-size: 10.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ky-muted);
}

.ky-meta__val {
  font-family: var(--ky-mono);
  font-size: 12.5px;
  color: var(--ky-white);
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ky-ease), border-color .18s var(--ky-ease);
}

a.ky-meta__item:hover .ky-meta__val {
  color: var(--ky-volt);
  border-bottom-color: var(--ky-volt);
}

.ky-navbar {
  position: relative;
  background: var(--ky-night);
}

.ky-navbar__inner {
  display: flex;
  align-items: center;
  gap: clamp(14px, 2vw, 32px);
  min-height: 62px;
}

.ky-nav { flex: 1 1 auto; }

.ky-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(6px, 1.5vw, 26px);
}

.ky-nav__link {
  position: relative;
  display: inline-block;
  padding: 19px 2px;
  color: var(--ky-white);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: .04em;
  text-decoration: none;
  transition: color .18s var(--ky-ease);
}

.ky-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 12px;
  height: 2px;
  background: var(--ky-volt);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .26s var(--ky-ease);
}

.ky-nav__link:hover { color: var(--ky-volt); }
.ky-nav__link:hover::after { transform: scaleX(1); }

.ky-nav__link[aria-current="page"] { color: var(--ky-volt); }
.ky-nav__link[aria-current="page"]::after { transform: scaleX(1); }

.ky-navbar__cta { flex: none; }

.ky-nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--ky-grid);
  color: var(--ky-white);
  font-size: 13px;
  letter-spacing: .1em;
  cursor: pointer;
  transition: border-color .2s var(--ky-ease), color .2s var(--ky-ease);
}

.ky-nav-toggle:hover { border-color: var(--ky-volt); color: var(--ky-volt); }

.ky-nav-toggle__bars {
  position: relative;
  display: block;
  width: 16px;
  height: 10px;
}

.ky-nav-toggle__bars::before,
.ky-nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 1.5px;
  background: var(--ky-volt);
  transition: transform .24s var(--ky-ease);
}

.ky-nav-toggle__bars::before { top: 0; }
.ky-nav-toggle__bars::after { bottom: 0; }

.ky-nav-toggle[aria-expanded="true"] .ky-nav-toggle__bars::before {
  transform: translateY(4.25px) rotate(45deg);
}

.ky-nav-toggle[aria-expanded="true"] .ky-nav-toggle__bars::after {
  transform: translateY(-4.25px) rotate(-45deg);
}

/* 12. Back to top --------------------------------------------------------- */
.ky-backtop {
  position: fixed;
  right: clamp(14px, 2.4vw, 34px);
  bottom: clamp(14px, 2.4vw, 34px);
  z-index: 90;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border: 1px solid var(--ky-grid);
  background: rgba(11, 31, 25, .9);
  color: var(--ky-volt);
  font-family: var(--ky-mono);
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity .26s var(--ky-ease), transform .26s var(--ky-ease),
              border-color .2s var(--ky-ease), background .2s var(--ky-ease),
              visibility .26s linear;
}

.ky-backtop[data-visible] {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.ky-backtop:hover {
  border-color: var(--ky-volt);
  background: var(--ky-turf);
}

/* 13. Footer -------------------------------------------------------------- */
.ky-footer {
  position: relative;
  margin-top: clamp(56px, 8vw, 120px);
  background: var(--ky-turf);
  border-top: 1px solid var(--ky-grid);
  color: var(--ky-muted);
}

.ky-footer__spark {
  height: 3px;
  width: 76px;
  margin-top: -1px;
  background: var(--ky-volt);
}

.ky-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1.6fr 1fr;
  gap: clamp(24px, 3vw, 48px);
  padding-block: clamp(38px, 5.6vw, 68px) clamp(28px, 4vw, 50px);
}

.ky-footer__col { min-width: 0; }

.ky-footer__brand {
  font-family: var(--ky-serif);
  font-size: 21px;
  font-weight: 800;
  letter-spacing: .1em;
  color: var(--ky-white);
}

.ky-footer__brand-line {
  margin-top: 10px;
  max-width: 30ch;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ky-muted);
}

.ky-footer__stamp {
  margin-top: 16px;
  font-family: var(--ky-mono);
  font-size: 10.5px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ky-grid);
}

.ky-footer__title {
  margin-bottom: 16px;
  font-family: var(--ky-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--ky-archive);
}

.ky-footer__list {
  display: grid;
  gap: 10px;
  font-size: 14px;
}

.ky-footer__list--contact { gap: 12px; }

.ky-footer__link {
  color: var(--ky-white);
  text-decoration: none;
  transition: color .18s var(--ky-ease);
}

.ky-footer__link:hover { color: var(--ky-volt); }

.ky-footer__link--mono {
  font-family: var(--ky-mono);
  font-size: 12.5px;
  letter-spacing: .02em;
  word-break: break-all;
}

.ky-footer__addr {
  max-width: 30ch;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ky-muted);
}

.ky-footer__note {
  font-family: var(--ky-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--ky-grid);
}

.ky-footer__base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  padding-block: 20px 30px;
  border-top: 1px solid rgba(58, 90, 80, .6);
  font-family: var(--ky-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--ky-muted);
}

.ky-footer__copy { max-width: none; color: var(--ky-muted); }

.ky-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.ky-footer__legal .ky-footer__link { color: var(--ky-muted); }
.ky-footer__legal .ky-footer__link:hover { color: var(--ky-volt); }

/* 14. Responsive ---------------------------------------------------------- */
@media (max-width: 1080px) {
  .ky-topbar__inner { grid-template-columns: auto auto; justify-content: space-between; }
  .ky-brand__line { display: none; }
  .ky-footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .ky-nav-toggle { display: inline-flex; }
  .ky-navbar__inner { justify-content: space-between; }

  .ky-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex: none;
    display: none;
    background: var(--ky-turf);
    border-bottom: var(--ky-hair);
    box-shadow: 0 22px 40px rgba(0, 0, 0, .45);
  }

  .ky-nav[data-open] { display: block; }

  .ky-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 6px var(--ky-gutter) 18px;
  }

  .ky-nav__item { border-bottom: 1px solid rgba(58, 90, 80, .5); }
  .ky-nav__item:last-child { border-bottom: 0; }

  .ky-nav__link {
    display: block;
    padding: 15px 0;
    font-size: 16px;
  }

  .ky-nav__link::after {
    bottom: 9px;
    right: auto;
    width: 26px;
  }

  .ky-col-1, .ky-col-2, .ky-col-3, .ky-col-4, .ky-col-5, .ky-col-6,
  .ky-col-7, .ky-col-8, .ky-col-9, .ky-col-10, .ky-col-11 {
    grid-column: span 12;
  }

  .ky-col-start-2, .ky-col-start-7 { grid-column-start: auto; }

  .ky-grid--12 { grid-template-columns: repeat(6, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .ky-meta__item--mail,
  .ky-meta__item--note { display: none; }

  .ky-navbar__cta {
    padding: 10px 14px;
    font-size: 12.5px;
  }

  .ky-footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .ky-footer__base { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .ky-navbar__cta { display: none; }
  .ky-brand__name { font-size: 17px; }
}