/* ==========================================================================
   BSPORT赛事 · 共享样式 /assets/site.css
   夜间赛场指挥台：墨绿夜幕 + 展签纸面 + 青柠状态信号
   ========================================================================== */

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

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

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

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

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

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

a { color: inherit; text-decoration: none; }

/* ---------- tokens ---------- */
:root {
  --ink: #0B1F19;
  --panel: #12312A;
  --line: #1E4A3C;
  --paper: #F2EFE6;
  --silver: #9FB3AD;
  --lime: #C6F24E;
  --orange: #FF7A3D;
  --clay: #B4573A;
  --ash: #6E7B76;
  --pit: #06120F;

  --wrap: 1280px;
  --gut: clamp(16px, 3.2vw, 40px);
  --shadow-hard: 4px 4px 0 var(--pit);
  --shadow-line: 4px 4px 0 var(--line);

  --font-display: "HarmonyOS Sans SC", "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --ease: 180ms cubic-bezier(.2, .6, .2, 1);
}

/* ---------- base ---------- */
body {
  min-height: 100vh;
  background-color: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: .01em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: .35;
  background-image: repeating-linear-gradient(
    to bottom,
    rgba(242, 239, 230, .03) 0 1px,
    transparent 1px 4px
  );
}

::selection { background: var(--lime); color: var(--pit); }

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

.btn--cta:focus-visible,
.strip__switch:focus-visible { outline-color: var(--orange); }

[id] { scroll-margin-top: 128px; }

#main-content { display: block; min-height: 60vh; }

/* ---------- typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.02em;
  text-wrap: balance;
}

h1 { font-size: clamp(30px, 4.2vw, 52px); }
h2 { font-size: clamp(23px, 2.6vw, 32px); }
h3 { font-size: clamp(18px, 1.6vw, 20px); line-height: 1.35; }
h4 { font-size: 17px; }

p { max-width: 72ch; }

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

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--silver);
}

.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--lime);
  flex: none;
}

.lede {
  max-width: 64ch;
  font-size: clamp(15px, 1.4vw, 17px);
  color: var(--silver);
}

/* ---------- layout helpers ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gut);
}

.page { padding-block: clamp(24px, 4vw, 56px); }

.section { padding-block: clamp(32px, 5vw, 64px); }

.section + .section { border-top: 1px solid var(--line); }

.section-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.section-head__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--silver);
}

.grid { display: grid; gap: clamp(14px, 2vw, 24px); }

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

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

.grid--split {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  grid-template-columns: minmax(0, 1fr);
}

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

@media (min-width: 960px) {
  .grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid--split { grid-template-columns: minmax(0, 220px) minmax(0, 1fr); }
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border: 2px solid var(--line);
  border-radius: 2px;
  background: var(--panel);
  color: var(--paper);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .02em;
  line-height: 1.3;
  transition: transform var(--ease), box-shadow var(--ease), background var(--ease),
    border-color var(--ease), color var(--ease);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hard);
  border-color: var(--lime);
}

.btn--cta {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--pit);
}

.btn--cta:hover {
  background: var(--paper);
  border-color: var(--paper);
  box-shadow: var(--shadow-line);
  color: var(--pit);
}

.btn--ghost {
  background: transparent;
  border-color: var(--silver);
  color: var(--paper);
}

.btn--line {
  background: transparent;
  border-color: var(--orange);
  color: var(--orange);
}

.btn--line:hover {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--pit);
  box-shadow: var(--shadow-hard);
}

/* ---------- cards / labels / readouts ---------- */
.card {
  position: relative;
  padding: clamp(16px, 2vw, 24px);
  background: var(--panel);
  border: 2px solid var(--line);
  border-radius: 2px;
  transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hard);
  border-color: var(--lime);
}

.card__idx {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--silver);
}

.card__title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--paper);
}

.card__meta {
  margin-top: 8px;
  font-size: 14px;
  color: var(--silver);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: rgba(242, 239, 230, .04);
  color: var(--silver);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  line-height: 1.4;
}

.tag--lime { color: var(--lime); border-color: var(--lime); }
.tag--orange { color: var(--orange); border-color: var(--orange); }

.stat {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.1;
  letter-spacing: -.01em;
  color: var(--lime);
}

.stat__unit {
  margin-left: 4px;
  font-size: .5em;
  color: var(--silver);
}

.meter {
  height: 6px;
  background: var(--pit);
  border: 1px solid var(--line);
  overflow: hidden;
}

.meter__fill {
  display: block;
  width: var(--fill, 50%);
  height: 100%;
  background: var(--lime);
  transition: width var(--ease);
}

.meter--orange .meter__fill { background: var(--orange); }

/* ---------- breadcrumb ---------- */
.breadcrumb {
  padding-block: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--ash);
}

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

.breadcrumb__list li { display: inline-flex; align-items: center; gap: 8px; }

.breadcrumb__list li + li::before {
  content: "/";
  color: var(--line);
}

.breadcrumb a { color: var(--silver); transition: color var(--ease); }
.breadcrumb a:hover { color: var(--lime); }

/* ---------- media containers ---------- */
.figure {
  display: grid;
  gap: 10px;
  margin: 0;
}

.figure figcaption {
  padding-left: 10px;
  border-left: 4px solid var(--lime);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--silver);
}

.media {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 2px solid var(--line);
  border-radius: 2px;
  background-color: var(--panel);
  overflow: hidden;
}

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

.media--wide { aspect-ratio: 21 / 9; }
.media--banner { aspect-ratio: 3 / 1; }
.media--tall { aspect-ratio: 4 / 5; }
.media--square { aspect-ratio: 1 / 1; }

.media[data-placeholder] {
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 32px 32px;
  background-position: center;
}

.media__caption {
  position: absolute;
  inset: auto 0 0 0;
  padding: 10px 12px;
  background: rgba(6, 18, 15, .82);
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--silver);
}

/* ---------- prose ---------- */
.prose {
  display: grid;
  gap: 1em;
  max-width: 72ch;
  color: var(--paper);
}

.prose p { color: rgba(242, 239, 230, .86); }

.prose h3 {
  padding-left: 12px;
  border-left: 4px solid var(--lime);
  color: var(--paper);
}

.prose ul { display: grid; gap: .5em; }

.prose ul li {
  position: relative;
  padding-left: 20px;
  color: rgba(242, 239, 230, .86);
}

.prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 8px;
  height: 2px;
  background: var(--lime);
}

.prose a {
  color: var(--lime);
  border-bottom: 1px solid rgba(198, 242, 78, .4);
}

/* ---------- index rail ---------- */
.index-rail {
  display: grid;
  gap: 2px;
  align-content: start;
  border-left: 2px solid var(--line);
}

.index-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-left: -2px;
  padding: 8px 12px;
  border-left: 2px solid transparent;
  font-size: 14px;
  color: var(--silver);
  transition: color var(--ease), border-color var(--ease), background var(--ease);
}

.index-link:hover {
  color: var(--paper);
  background: rgba(198, 242, 78, .06);
}

.index-link.is-active {
  color: var(--lime);
  border-left-color: var(--lime);
  background: rgba(198, 242, 78, .08);
}

.index-link__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--ash);
}

.index-link.is-active .index-link__num { color: var(--lime); }

@media (min-width: 960px) {
  .index-rail {
    position: sticky;
    top: 128px;
    align-self: start;
  }
}

/* ---------- reveal ---------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity .3s ease, transform .3s ease;
}

.js [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ==========================================================================
   header
   ========================================================================== */
.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 200;
  padding: 10px 16px;
  border-radius: 2px;
  background: var(--lime);
  color: var(--pit);
  font-weight: 700;
  transform: translateY(-200%);
  transition: transform var(--ease);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background: var(--pit);
  border-bottom: 2px solid var(--line);
  box-shadow: 0 2px 0 rgba(6, 18, 15, .7);
}

.progress {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 2;
  width: 100%;
  height: 2px;
  background: rgba(159, 179, 173, .14);
}

.progress__bar {
  display: block;
  width: 0;
  height: 100%;
  background: var(--lime);
  transition: width var(--ease) linear;
}

/* 线路状态条 */
.strip {
  background: var(--ink);
  border-bottom: 1px solid var(--line);
}

.strip__inner {
  display: flex;
  align-items: center;
  gap: clamp(10px, 2vw, 24px);
  max-width: var(--wrap);
  min-height: 32px;
  margin-inline: auto;
  padding-inline: var(--gut);
  font-size: 12px;
}

.strip__state {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  max-width: none;
  font-family: var(--font-mono);
  letter-spacing: .1em;
  color: var(--paper);
  white-space: nowrap;
}

.strip__label { color: var(--lime); transition: color var(--ease); }

.strip__state.is-backup .strip__label { color: var(--orange); }

.strip__code {
  font-size: 11px;
  color: var(--ash);
}

.dot {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 3px rgba(198, 242, 78, .16);
}

.dot--busy {
  background: var(--orange);
  box-shadow: 0 0 0 3px rgba(255, 122, 61, .18);
  animation: breathe 2.4s ease-in-out infinite;
}

@keyframes breathe {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .45; transform: scale(.82); }
}

.strip__meta {
  max-width: none;
  margin-left: auto;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--ash);
  white-space: nowrap;
  text-overflow: ellipsis;
}

.strip__switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex: none;
  padding: 4px 10px;
  border: 1px solid var(--orange);
  border-radius: 2px;
  color: var(--orange);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  white-space: nowrap;
  transition: background var(--ease), color var(--ease);
}

.strip__switch:hover {
  background: var(--orange);
  color: var(--pit);
}

.strip__switch[aria-pressed="true"] {
  border-color: var(--lime);
  color: var(--lime);
}

.strip__switch[aria-pressed="true"]:hover {
  background: var(--lime);
  color: var(--pit);
}

/* 命令栏 */
.cmdbar {
  position: relative;
  background: var(--pit);
}

.cmdbar__inner {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 28px);
  max-width: var(--wrap);
  min-height: 64px;
  margin-inline: auto;
  padding-inline: var(--gut);
  transition: min-height var(--ease);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: none;
  color: var(--paper);
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -.02em;
}


.brand__mark {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 2px;
  background: var(--lime);
  color: var(--pit);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  box-shadow: 3px 3px 0 var(--line);
  transition: background var(--ease);
}

.brand:hover .brand__mark { background: var(--paper); }

.brand__name { white-space: nowrap; }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  padding: 8px 12px;
  border: 2px solid var(--line);
  border-radius: 2px;
  background: var(--panel);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  transition: border-color var(--ease), color var(--ease);
}

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

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

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  background: currentColor;
  transition: transform var(--ease);
}

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

.site-header[data-open] .nav-toggle__bars::before { transform: translateY(4px) rotate(45deg); }
.site-header[data-open] .nav-toggle__bars::after { transform: translateY(-4px) rotate(-45deg); }

.cmdbar__nav {
  display: block;
  margin-left: auto;
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2px;
}

.nav-link {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 8px 10px;
  border-bottom: 2px solid transparent;
  color: var(--silver);
  font-size: 14px;
  line-height: 1.5;
  transition: color var(--ease), border-color var(--ease), background var(--ease);
}

.nav-link:hover {
  color: var(--paper);
  background: rgba(198, 242, 78, .07);
}

.nav-link__idx {
  font-size: 10px;
  letter-spacing: .1em;
  color: var(--ash);
  transition: color var(--ease);
}

.nav-link[aria-current="page"] {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.nav-link[aria-current="page"] .nav-link__idx { color: var(--lime); }

.cmdbar .btn--cta {
  flex: none;
  padding: 10px 16px;
  font-size: 13px;
}

/* 紧凑态：命令栏收为 56px，索引折入下拉 */
.site-header[data-compact] .cmdbar__inner { min-height: 56px; }
.site-header[data-compact] .strip__meta { display: none; }
.site-header[data-compact] .brand__name { font-size: 16px; }
.site-header[data-compact] .cmdbar__nav { display: none; }
.site-header[data-compact] .nav-toggle { display: inline-flex; }

.site-header[data-compact][data-open] .cmdbar__nav,
.site-header[data-open] .cmdbar__nav {
  display: block;
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  z-index: 5;
  margin-left: 0;
  padding: 14px var(--gut) 20px;
  background: var(--pit);
  border-top: 1px solid var(--line);
  border-bottom: 2px solid var(--lime);
  box-shadow: 0 18px 40px rgba(6, 18, 15, .6);
}

.site-header[data-compact][data-open] .nav-list,
.site-header[data-open] .nav-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 4px 18px;
  align-items: stretch;
}

.site-header[data-compact][data-open] .nav-link,
.site-header[data-open] .nav-link {
  display: flex;
  width: 100%;
  padding: 10px 8px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}

.site-header[data-compact][data-open] .nav-link[aria-current="page"],
.site-header[data-open] .nav-link[aria-current="page"] {
  border-bottom-color: var(--lime);
}

/* ---------- header 移动端 ---------- */
@media (max-width: 899px) {
  .strip__inner {
    flex-wrap: wrap;
    gap: 8px;
    min-height: 36px;
    padding-block: 4px;
  }

  .strip__meta { display: none; }

  .strip__switch { margin-left: auto; }

  .cmdbar__inner {
    gap: 10px;
    min-height: 60px;
  }

  .brand__name { font-size: 16px; }

  .nav-toggle { display: inline-flex; }

  .cmdbar__nav { display: none; }

  .cmdbar .btn--cta {
    padding: 9px 13px;
    font-size: 12px;
  }

  .site-header[data-open] .nav-list,
  .site-header[data-compact][data-open] .nav-list {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
  }

  .site-header[data-open] .nav-link,
  .site-header[data-compact][data-open] .nav-link {
    padding: 12px 8px;
  }
}

/* ==========================================================================
   footer
   ========================================================================== */
.site-footer {
  margin-top: clamp(40px, 7vw, 96px);
  background: var(--pit);
  border-top: 2px solid var(--line);
  color: var(--silver);
}

.footer__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3vw, 40px);
  max-width: var(--wrap);
  margin-inline: auto;
  padding: clamp(32px, 5vw, 64px) var(--gut) clamp(24px, 3vw, 40px);
}

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

@media (min-width: 1080px) {
  .footer__inner { grid-template-columns: 1.4fr 1fr 1fr 1.3fr; }
}

.footer__brand { display: grid; gap: 14px; align-content: start; }

.brand--footer { font-size: 19px; }

.footer__tag {
  max-width: 34ch;
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver);
}

.footer__col { display: grid; gap: 12px; align-content: start; }

.footer__title {
  max-width: none;
  padding-left: 10px;
  border-left: 4px solid var(--lime);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--paper);
}

.footer__list { display: grid; gap: 6px; }

.footer__link {
  display: inline-block;
  padding-block: 2px;
  font-size: 14px;
  color: var(--silver);
  border-bottom: 1px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}

.footer__link:hover {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.footer__contact { gap: 8px; }

.footer__line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  max-width: none;
  font-size: 14px;
  line-height: 1.6;
}

.footer__k {
  flex: none;
  min-width: 36px;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--ash);
}

.footer__v { color: var(--paper); overflow-wrap: anywhere; }

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 20px;
  max-width: var(--wrap);
  margin-inline: auto;
  padding: 16px var(--gut) 24px;
  border-top: 1px solid var(--line);
}

.footer__meta {
  max-width: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--ash);
}

.footer__note {
  max-width: none;
  font-size: 12px;
  color: var(--ash);
}

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

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }

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

  .btn:hover,
  .card:hover {
    transform: none;
  }
}