/* =========================================================
   球王会体育 · 共享站台样式  /assets/site.css
   午夜墨绿基底 + 荧光青数据线 + 熔金橙热点
   ========================================================= */

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

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

body,
h1, h2, h3, h4, h5, h6,
p, figure, blockquote, dl, dd,
ul, ol { margin: 0; }

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

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

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

a {
  color: var(--cyan);
  text-decoration: none;
}

/* ---------- 2. Tokens ---------- */
:root {
  --ink-900: #06110D;
  --ink-800: #0A1F17;
  --ink-700: #12332A;
  --line: #1E4D3F;
  --cyan: #29F2C0;
  --cyan-soft: #7FF8DA;
  --amber: #FF9A2E;
  --charcoal: #2D3A36;
  --paper: #F4FBF8;
  --muted: #9FB8AF;

  --line-soft: rgba(30, 77, 63, .62);
  --line-faint: rgba(30, 77, 63, .30);
  --cyan-12: rgba(41, 242, 192, .12);
  --cyan-06: rgba(41, 242, 192, .06);
  --amber-14: rgba(255, 154, 46, .14);

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

  --shell-max: 1440px;
  --shell-wide: 1680px;
  --shell-pad: clamp(18px, 4vw, 64px);
  --rail: 96px;
  --gutter: 24px;

  --ease: cubic-bezier(.22, .72, .28, 1);
  --fast: 160ms;
  --base: 240ms;
  --slow: 320ms;
}

/* ---------- 3. Base ---------- */
html, body { min-height: 100%; }

body {
  background: var(--ink-900);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
  letter-spacing: .004em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

#main-content { scroll-margin-top: 104px; }

/* ---------- 4. Typography ---------- */
h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4 {
  font-family: var(--font-head);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -.02em;
  color: var(--paper);
  font-stretch: 88%;
}

h1, .h1 { font-size: clamp(30px, 4.2vw, 44px); line-height: 1.18; }
h2, .h2 { font-size: clamp(23px, 2.6vw, 28px); line-height: 1.29; }
h3, .h3 { font-size: clamp(18px, 1.7vw, 20px); line-height: 1.4; }
h4, .h4 { font-size: 16px; line-height: 1.5; letter-spacing: .01em; }

p { max-width: 74ch; }

.lead {
  font-size: clamp(17px, 1.5vw, 19px);
  line-height: 1.72;
  color: #D6E8E1;
  max-width: 62ch;
}

.prose { max-width: 72ch; }
.prose > * + * { margin-top: 1.05em; }
.prose h2 { margin-top: 2.1em; }
.prose h3 { margin-top: 1.7em; }
.prose ul,
.prose ol { padding-left: 1.35em; list-style: disc; }
.prose ol { list-style: decimal; }
.prose li + li { margin-top: .45em; }
.prose a {
  color: var(--cyan);
  border-bottom: 1px solid var(--cyan-12);
  transition: border-color var(--base) var(--ease), color var(--base) var(--ease);
}
.prose a:hover {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

.num,
.mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 11px;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 11.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  line-height: 1.4;
  white-space: nowrap;
}

.tag--hot {
  border-color: var(--amber);
  color: var(--amber);
  background: var(--amber-14);
}

.tag--live {
  border-color: var(--cyan);
  color: var(--cyan);
  background: var(--cyan-06);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* ---------- 5. Focus ---------- */
:focus-visible {
  outline: 2px solid var(--cyan-soft);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 200;
  transform: translateY(-180%);
  padding: 11px 20px;
  background: var(--cyan);
  color: var(--ink-900);
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: .1em;
  transition: transform var(--base) var(--ease);
}
.skip-link:focus { transform: none; }

/* ---------- 6. Layout ---------- */
.shell {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--shell-pad);
}

.canvas {
  display: grid;
  grid-template-columns: var(--rail) minmax(0, 1fr);
  gap: var(--gutter);
  width: 100%;
  max-width: var(--shell-wide);
  margin-inline: auto;
  padding-inline: clamp(16px, 2.4vw, 40px);
}
.canvas > * { grid-column: 2; min-width: 0; }
.canvas > .full { grid-column: 1 / -1; }

.grid {
  display: grid;
  gap: var(--gutter);
}
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.grid-field {
  background-image:
    linear-gradient(var(--line-faint) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-faint) 1px, transparent 1px);
  background-size: 48px 48px;
  background-position: center center;
}

/* ---------- 7. Buttons ---------- */
.btn {
  --cut: 10px;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5em;
  padding: 11px 20px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--paper);
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: .1em;
  line-height: 1.3;
  cursor: pointer;
  clip-path: polygon(
    var(--cut) 0, 100% 0,
    100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%,
    0 100%, 0 var(--cut)
  );
  transition: color var(--base) var(--ease),
              background-color var(--base) var(--ease),
              border-color var(--base) var(--ease),
              box-shadow var(--base) var(--ease);
}

.btn-primary {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-900);
}
.btn-primary:hover {
  background: var(--cyan-soft);
  border-color: var(--cyan-soft);
  color: var(--ink-900);
}

.btn-ghost { color: var(--muted); }
.btn-ghost:hover {
  color: var(--cyan);
  border-color: var(--cyan);
  background: var(--cyan-06);
}

.btn:focus-visible {
  outline: none;
  box-shadow: inset 0 0 0 2px var(--cyan-soft);
}

/* ---------- 8. Breadcrumb ---------- */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 12.5px;
  letter-spacing: .12em;
  color: var(--muted);
}
.breadcrumb li { display: inline-flex; align-items: center; gap: 10px; }
.breadcrumb li + li::before {
  content: "/";
  color: var(--line);
}
.breadcrumb a {
  color: var(--muted);
  transition: color var(--base) var(--ease);
}
.breadcrumb a:hover { color: var(--cyan); }
.breadcrumb [aria-current="page"] { color: var(--paper); }

/* ---------- 9. Panels & rules ---------- */
.panel {
  --cut: 18px;
  position: relative;
  background: var(--ink-800);
  border: 1px solid var(--line-faint);
  padding: clamp(20px, 2.4vw, 32px);
  clip-path: polygon(
    var(--cut) 0, 100% 0,
    100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%,
    0 100%, 0 var(--cut)
  );
}
.panel--raised { background: var(--ink-700); }
.panel--quiet {
  background: transparent;
  border-style: dashed;
  border-color: var(--line-soft);
}

.rule {
  height: 1px;
  max-width: none;
  border: 0;
  margin-block: clamp(24px, 3vw, 40px);
  background: var(--line-faint);
}

.slash-divider {
  height: 1px;
  margin-block: clamp(40px, 6vw, 88px);
  background: linear-gradient(90deg,
      transparent 0,
      var(--line-soft) 14%,
      var(--cyan-12) 50%,
      var(--line-soft) 86%,
      transparent 100%);
  transform: rotate(-1.4deg);
  transform-origin: left center;
}

.track-line {
  height: 1px;
  background-image: repeating-linear-gradient(90deg, var(--line) 0 6px, transparent 6px 14px);
}

/* ---------- 10. Media ---------- */
.media {
  position: relative;
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--ink-800);
  border: 1px solid var(--line-faint);
}
.media > img,
.media > picture > img,
.media > video,
.media > svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media > img { filter: saturate(.86) contrast(1.06); }

.media--4x3 { aspect-ratio: 4 / 3; }
.media--1x1 { aspect-ratio: 1 / 1; }
.media--21x9 { aspect-ratio: 21 / 9; }
.media--3x4 { aspect-ratio: 3 / 4; }

.media--empty {
  background-image:
    linear-gradient(var(--line-faint) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-faint) 1px, transparent 1px);
  background-size: 32px 32px;
}

.media-badge {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 2;
  padding: 6px 12px;
  background: rgba(6, 17, 13, .88);
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--cyan);
}

.media-badge--hot {
  color: var(--amber);
  border-color: var(--amber);
}

.media-caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  letter-spacing: .06em;
  color: var(--muted);
  max-width: 56ch;
}

/* ---------- 11. Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--ink-900);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(16px, 3vw, 48px);
  min-height: 76px;
  max-width: var(--shell-wide);
  margin-inline: auto;
  padding-inline: clamp(16px, 2.4vw, 40px);
}

.brand-rail {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: none;
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--paper);
  text-decoration: none;
}
.brand-lockup:hover .brand-name { color: var(--cyan); }

.brand-glyph {
  display: inline-grid;
  grid-auto-flow: column;
  align-items: end;
  gap: 3px;
  height: 26px;
  padding: 3px 5px;
  border: 1px solid var(--line);
  background: var(--ink-800);
  flex: none;
}
.brand-glyph i {
  display: block;
  width: 4px;
  background: var(--cyan);
}
.brand-glyph i:nth-child(1) { height: 38%; opacity: .55; }
.brand-glyph i:nth-child(2) { height: 68%; opacity: .8; }
.brand-glyph i:nth-child(3) { height: 100%; background: var(--cyan-soft); }

.brand-words { display: grid; gap: 1px; }

.brand-name {
  font-family: var(--font-head);
  font-stretch: 88%;
  font-size: 16.5px;
  font-weight: 800;
  letter-spacing: .02em;
  line-height: 1.2;
  transition: color var(--base) var(--ease);
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: .22em;
  line-height: 1.2;
  color: var(--muted);
  text-transform: uppercase;
}

.version-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 5px 10px;
  border: 1px solid var(--line);
  background: var(--cyan-06);
  flex: none;
}
.version-chip b {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--cyan);
}
.version-chip em {
  font-style: normal;
  font-size: 9.5px;
  letter-spacing: .18em;
  color: var(--muted);
  text-transform: uppercase;
}

/* --- nav --- */
.nav-rail {
  display: flex;
  align-items: center;
  gap: clamp(10px, 2vw, 32px);
  min-width: 0;
}

.nav-track {
  display: flex;
  align-items: center;
  gap: clamp(4px, 1.1vw, 18px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-track a {
  position: relative;
  display: inline-block;
  padding: 26px 3px;
  font-size: 14.5px;
  letter-spacing: .07em;
  line-height: 1.3;
  white-space: nowrap;
  color: var(--muted);
  transition: color var(--base) var(--ease);
}

.nav-track a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 15px;
  height: 2px;
  background: var(--cyan-soft);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--base) var(--ease),
              background-color var(--base) var(--ease);
}

.nav-track a:hover { color: var(--paper); }
.nav-track a:hover::after,
.nav-track a:focus-visible::after { transform: scaleX(1); }

.nav-track a[aria-current="page"] { color: var(--cyan); }
.nav-track a[aria-current="page"]::after {
  transform: scaleX(1);
  background: var(--cyan);
}

.nav-utility { flex: none; }

.nav-foot { display: none; }

/* --- mobile toggle --- */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--paper);
  font-size: 12.5px;
  letter-spacing: .16em;
  cursor: pointer;
  transition: color var(--base) var(--ease), border-color var(--base) var(--ease);
}
.nav-toggle:hover { border-color: var(--cyan); color: var(--cyan); }

.nav-toggle-box {
  display: grid;
  gap: 5px;
  width: 18px;
}
.nav-toggle-box i {
  display: block;
  height: 1.5px;
  background: currentColor;
  transition: transform var(--base) var(--ease), opacity var(--base) var(--ease);
}

.site-header[data-open] .nav-toggle-box i:first-child {
  transform: translateY(3.25px) rotate(45deg);
}
.site-header[data-open] .nav-toggle-box i:last-child {
  transform: translateY(-3.25px) rotate(-45deg);
}

/* ---------- 12. Status strip ---------- */
.status-strip {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px clamp(16px, 2.4vw, 40px);
  background: var(--ink-800);
  border-bottom: 1px solid var(--line-faint);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--muted);
  white-space: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
}
.status-strip::-webkit-scrollbar { display: none; }

.status-item { flex: none; }
.status-item b {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--cyan);
  padding-inline: 2px;
}

.status-sep {
  flex: none;
  width: 1px;
  height: 12px;
  background: var(--line);
}

.status-dot {
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  animation: pulse-dot 2.4s var(--ease) infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(41, 242, 192, .45); }
  50%      { opacity: .5; box-shadow: 0 0 0 6px rgba(41, 242, 192, 0); }
}

/* ---------- 13. Footer ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(72px, 10vw, 140px);
  background: var(--ink-800);
  border-top: 1px solid var(--line);
  overflow: hidden;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg,
      var(--cyan) 0,
      var(--cyan) 14%,
      transparent 14%,
      transparent 86%,
      var(--amber) 86%,
      var(--amber) 100%);
  opacity: .8;
}

.footer-canvas {
  position: relative;
  max-width: var(--shell-wide);
  margin-inline: auto;
  padding-inline: var(--shell-pad);
}

.footer-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 18px 44px;
  padding-block: clamp(38px, 5vw, 62px) clamp(22px, 3vw, 32px);
  border-bottom: 1px solid var(--line-faint);
}

.footer-tagline {
  font-size: 12.5px;
  letter-spacing: .16em;
  color: var(--muted);
  max-width: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(24px, 3vw, 48px);
  padding-block: clamp(30px, 4vw, 50px);
}

.footer-col { min-width: 0; }

.footer-col-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--cyan);
}
.footer-col-title::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: var(--line-faint);
}

.footer-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.footer-list a {
  display: inline-block;
  font-size: 14.5px;
  color: var(--muted);
  border-bottom: 1px solid transparent;
  transition: color var(--base) var(--ease), border-color var(--base) var(--ease);
}
.footer-list a:hover {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

.footer-facts {
  display: grid;
  gap: 10px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}
.footer-facts .mono {
  font-size: 13px;
  color: var(--cyan);
}

.footer-base {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px 32px;
  padding-block: 22px clamp(26px, 4vw, 40px);
  border-top: 1px solid var(--line-faint);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--muted);
}

.footer-line {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 22px;
  max-width: none;
}
.footer-line span { display: inline-flex; align-items: center; }
.footer-line--meta { color: var(--line); }
.footer-line--meta span { color: var(--muted); opacity: .8; }

/* ---------- 14. Scroll meter ---------- */
.scroll-meter {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 90;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--cyan), var(--cyan-soft));
  pointer-events: none;
  will-change: transform;
}

/* ---------- 15. Responsive ---------- */
@media (max-width: 1180px) {
  .nav-utility { display: none; }
  .nav-track a { font-size: 13.5px; padding-inline: 2px; }
}

@media (max-width: 1023px) {
  .canvas {
    grid-template-columns: minmax(0, 1fr);
    padding-inline: clamp(18px, 4vw, 40px);
  }
  .canvas > * { grid-column: 1; }
  .canvas > .full { grid-column: 1; }

  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 899px) {
  .nav-toggle { display: inline-flex; }

  .nav-rail {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 70;
    width: min(360px, 88vw);
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: space-between;
    gap: 0;
    padding: 92px 24px 28px;
    background: var(--ink-800);
    border-left: 1px solid var(--line);
    overflow-y: auto;
    transform: translateX(101%);
    transition: transform var(--slow) var(--ease);
  }

  .site-header[data-open] .nav-rail { transform: none; }

  .site-header[data-open]::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 65;
    background: rgba(6, 17, 13, .74);
    pointer-events: none;
  }

  .nav-track {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-track a {
    display: block;
    padding: 15px 2px;
    font-size: 16.5px;
    border-bottom: 1px solid var(--line-faint);
  }

  .nav-track a::after { display: none; }

  .nav-foot {
    display: block;
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid var(--line-faint);
    font-size: 12.5px;
    line-height: 2;
    letter-spacing: .06em;
    color: var(--muted);
  }
  .nav-foot p { max-width: none; }

  .grid-2,
  .grid-3,
  .grid-4 { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 620px) {
  body { font-size: 16px; }

  .brand-rail { gap: 10px; }
  .version-chip { display: none; }
  .brand-glyph { height: 22px; }

  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .footer-base { flex-direction: column; }
  .footer-line { gap: 4px 16px; }

  .slash-divider { transform: rotate(-.8deg); }
  .panel { --cut: 12px; }
  .btn { --cut: 8px; padding: 10px 16px; }
}

/* ---------- 16. Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }

  .status-dot { animation: none; opacity: 1; }
  .scroll-meter { transition: none; }
}