/* ============================================================
   K体育赛场 — 共享样式 /assets/site.css
   夜间赛场指挥室：深墨绿底、切角面板、等宽数据层
   ============================================================ */

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

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

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

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

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

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

button { background: none; border: 0; }

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

/* ---------- 2. 变量 ---------- */
:root {
  --ink: #0B1F1A;
  --charcoal: #121417;
  --line: #1E2A28;
  --lime: #C6FF3D;
  --lime-dim: #8FBE2A;
  --orange: #FF7A2F;
  --paper: #F4F1EA;
  --muted: #B9C2BD;
  --slate: #6F8B84;
  --alert: #FF5A5A;

  --cut: 14px;
  --cut-shape: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, var(--cut) 100%, 0 calc(100% - var(--cut)));

  --shell: 1360px;
  --gap: clamp(16px, 2.2vw, 32px);
  --ease: cubic-bezier(.22, .61, .36, 1);

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

/* ---------- 3. 基础排版与底色 ---------- */
body {
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: 16.5px;
  line-height: 1.75;
  letter-spacing: .005em;
  -webkit-font-smoothing: antialiased;
}

/* 战术板刻度 + 探照灯光晕 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    radial-gradient(120% 80% at 84% -12%, rgba(198, 255, 61, .07), transparent 62%),
    radial-gradient(90% 70% at -6% 104%, rgba(255, 122, 47, .06), transparent 60%),
    linear-gradient(to right, rgba(30, 42, 40, .5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(30, 42, 40, .32) 1px, transparent 1px);
  background-size: auto, auto, 76px 76px, 76px 76px;
}

main { display: block; position: relative; z-index: 1; }

h1, h2, h3, h4 {
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -.01em;
}

#main-content { scroll-margin-top: 118px; }
#main-content:focus { outline: none; }

[id] { scroll-margin-top: 118px; }

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

/* ---------- 4. 布局原语 ---------- */
.container {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 clamp(16px, 3vw, 40px);
}

.section {
  position: relative;
  padding: clamp(48px, 7vw, 104px) 0;
}

.section--tight { padding: clamp(28px, 4vw, 56px) 0; }

.section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px 28px;
  margin-bottom: clamp(22px, 3vw, 40px);
}

.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(--lime);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--lime);
}

.section-title {
  font-size: clamp(26px, 3.4vw, 44px);
  font-weight: 800;
}

.section-note {
  max-width: 44ch;
  font-size: 14.5px;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--gap);
}

.col-index { grid-column: span 2; }
.col-main { grid-column: span 7; }
.col-aside { grid-column: span 3; }
.col-half { grid-column: span 6; }
.col-full { grid-column: 1 / -1; }

/* ---------- 5. 头部：悬浮胶囊浮岛 ---------- */
.skip-link {
  position: fixed;
  top: -80px;
  left: 16px;
  z-index: 200;
  padding: 10px 18px;
  border-radius: 10px;
  background: var(--lime);
  color: var(--charcoal);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  transition: top .2s var(--ease);
}

.skip-link:focus { top: 14px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 70;
  padding: 16px clamp(12px, 2vw, 28px) 0;
  transition: padding .28s var(--ease);
}

.site-header[data-shrunk="true"] { padding-top: 8px; }

.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.4vw, 22px);
  max-width: var(--shell);
  margin: 0 auto;
  padding: 9px 10px 9px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(18, 20, 23, .88);
  box-shadow: 0 20px 44px -30px rgba(0, 0, 0, .95);
  backdrop-filter: blur(12px) saturate(1.1);
  transition: padding .28s var(--ease), background-color .28s var(--ease);
}

.site-header[data-shrunk="true"] .header-inner {
  padding: 7px 8px 7px 12px;
  background: rgba(11, 31, 26, .95);
}

.site-header[data-shrunk="true"] .brand-note { display: none; }
.site-header[data-shrunk="true"] .btn--ghost { display: none; }

/* 品牌标记 */
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  padding: 3px 4px;
  border-radius: 999px;
}

.brand-mark {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  background: var(--lime);
  color: var(--charcoal);
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  line-height: 1;
  clip-path: polygon(0 0, 100% 0, 100% 64%, 64% 100%, 0 100%);
}

.brand-mark--lg {
  width: 44px;
  height: 44px;
  font-size: 21px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-name {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: .02em;
}

.brand-note {
  overflow: hidden;
  max-width: 260px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .02em;
  color: var(--slate);
  white-space: nowrap;
  text-overflow: ellipsis;
}

/* 胶囊导航 */
.capsule-nav {
  position: relative;
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.nav-link {
  display: inline-block;
  padding: 9px 15px;
  border-radius: 999px;
  font-size: 14.5px;
  color: var(--muted);
  white-space: nowrap;
  transition: color .2s var(--ease), background-color .2s var(--ease);
}

.nav-link:hover {
  color: var(--paper);
  background: rgba(198, 255, 61, .08);
}

.nav-link[aria-current="page"] {
  color: var(--lime);
  background: rgba(198, 255, 61, .07);
}

.nav-slider {
  position: absolute;
  left: 0;
  bottom: 3px;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--lime);
  opacity: 0;
  pointer-events: none;
  transition: transform .28s var(--ease), width .28s var(--ease), opacity .2s var(--ease);
}

.capsule-nav[data-slider-ready="true"] .nav-slider { opacity: 1; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
}

/* 滚动进度刻度 */
.header-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  margin: 0 auto;
  border-radius: 2px;
  background: rgba(244, 241, 234, .07);
  pointer-events: none;
}

.header-progress::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--lime) 0%, var(--lime) 70%, var(--orange) 100%);
  transform: scaleX(var(--progress, 0));
  transform-origin: left center;
  transition: transform .12s linear;
}

/* 移动端菜单按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  cursor: pointer;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

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

.nav-toggle[aria-expanded="true"] {
  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;
  right: 0;
  height: 2px;
  background: var(--lime);
  transition: transform .22s var(--ease), top .22s var(--ease), bottom .22s var(--ease);
}

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

.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before {
  top: 4px;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after {
  bottom: 4px;
  transform: rotate(-45deg);
}

.nav-toggle-label { line-height: 1; }

/* ---------- 6. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .02em;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}

.btn--primary {
  background: var(--lime);
  color: var(--charcoal);
}

.btn--primary:hover { background: var(--lime-dim); }

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

.btn--ghost:hover { background: rgba(255, 122, 47, .14); }

.btn--text {
  padding: 6px 2px;
  color: var(--lime);
  border-radius: 4px;
}

.btn--text:hover { color: var(--lime-dim); }

/* ---------- 7. 面板 / 卡片 / 数据 ---------- */
.cut-panel {
  position: relative;
  padding: clamp(20px, 2.6vw, 32px);
  border: 1px solid var(--line);
  background: var(--charcoal);
  clip-path: var(--cut-shape);
}

.cut-panel--lime { border-color: var(--lime-dim); }

.cut-panel--warn { border-color: rgba(255, 122, 47, .55); }

.data-card {
  position: relative;
  padding: 22px 24px 24px 28px;
  border: 1px solid var(--line);
  background: var(--charcoal);
  clip-path: var(--cut-shape);
  transition: transform .24s var(--ease), border-color .24s var(--ease), background-color .24s var(--ease);
}

.data-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--slate);
  transition: background-color .24s var(--ease);
}

.data-card:hover {
  transform: translateY(-4px);
  border-color: var(--lime-dim);
  background: #151917;
}

.data-card:hover::before { background: var(--lime); }

.data-card-note {
  color: var(--muted);
  transition: color .24s var(--ease);
}

.data-card:hover .data-card-note { color: var(--paper); }

.stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: clamp(28px, 4vw, 46px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--lime);
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
}

.stat--warn .stat-value { color: var(--orange); }

/* ---------- 8. 表格 / 媒体 / 索引 / 正文 ---------- */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  background: var(--charcoal);
}

.data-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 14.5px;
}

.data-table caption {
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--slate);
  text-align: left;
}

.data-table th,
.data-table td {
  padding: 12px 18px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
}

.data-table th {
  background: rgba(30, 42, 40, .42);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
}

.data-table td { color: var(--paper); }
.data-table tbody tr:hover { background: rgba(198, 255, 61, .06); }
.data-table tbody tr:last-child td { border-bottom: 0; }
.data-table .num {
  font-family: var(--font-mono);
  color: var(--lime);
}

.media-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--charcoal);
  clip-path: var(--cut-shape);
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.88) contrast(1.06) brightness(.94);
}

.media-frame--plate {
  background-image:
    linear-gradient(135deg, rgba(198, 255, 61, .1) 0 1px, transparent 1px),
    linear-gradient(to bottom right, rgba(30, 42, 40, .9), rgba(11, 31, 26, .95));
  background-size: 26px 26px, auto;
}

.media-16x9 { aspect-ratio: 16 / 9; }
.media-4x3 { aspect-ratio: 4 / 3; }
.media-1x1 { aspect-ratio: 1 / 1; }

.media-caption {
  padding: 10px 14px;
  background: rgba(11, 31, 26, .92);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--slate);
}

.module-index {
  position: sticky;
  top: 112px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-left: 14px;
  border-left: 1px solid var(--line);
}

.index-link {
  display: block;
  padding: 7px 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--slate);
  transition: color .2s var(--ease);
}

.index-link::before {
  content: attr(data-index);
  margin-right: 8px;
  color: var(--slate);
  opacity: .65;
}

.index-link:hover { color: var(--paper); }

.index-link[aria-current="true"] {
  color: var(--lime);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--slate);
}

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

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

.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--lime); }
.breadcrumb [aria-current="page"] { color: var(--paper); }

.prose {
  max-width: 40em;
  color: var(--paper);
  font-size: 16.5px;
  line-height: 1.78;
}

.prose p + p { margin-top: 1em; }

.prose h2 {
  margin: 1.6em 0 .6em;
  font-size: clamp(22px, 2.4vw, 30px);
}

.prose h3 {
  margin: 1.4em 0 .5em;
  font-size: 19px;
}

.prose a {
  color: var(--lime);
  border-bottom: 1px solid rgba(198, 255, 61, .38);
}

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

.prose ul {
  display: flex;
  flex-direction: column;
  gap: .5em;
  margin: 1em 0;
}

.prose li {
  position: relative;
  padding-left: 1.1em;
}

.prose li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .74em;
  width: 7px;
  height: 2px;
  background: var(--lime);
}

.lede {
  max-width: 32em;
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 9. 页脚 ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(56px, 9vw, 140px);
  padding: clamp(40px, 6vw, 80px) 0 28px;
  border-top: 1px solid var(--line);
  background: var(--charcoal);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: clamp(120px, 18vw, 280px);
  height: 3px;
  background: var(--orange);
}

.footer-ruler {
  height: 14px;
  margin-bottom: clamp(24px, 3.4vw, 44px);
  background-image: repeating-linear-gradient(90deg, var(--line) 0 1px, transparent 1px 28px);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(260px, 1.6fr) repeat(3, minmax(140px, 1fr));
  gap: clamp(24px, 3.4vw, 56px);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  max-width: 40em;
}

.footer-brand-name {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: .01em;
}

.footer-note {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--muted);
}

.footer-update {
  padding-left: 12px;
  border-left: 2px solid var(--lime);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--slate);
}

.footer-col { display: flex; flex-direction: column; }

.footer-heading {
  margin-bottom: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--lime);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  display: inline-block;
  font-size: 14.5px;
  color: var(--muted);
  transition: color .2s var(--ease), transform .2s var(--ease);
}

.footer-links a:hover {
  color: var(--paper);
  transform: translateX(5px);
}

.footer-links a[aria-current="page"] { color: var(--lime); }

.footer-contact {
  margin-top: clamp(26px, 3.6vw, 46px);
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.9;
  letter-spacing: .02em;
  color: var(--muted);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 28px;
  margin-top: clamp(20px, 2.6vw, 30px);
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 13px;
  color: var(--slate);
}

.footer-icp {
  font-family: var(--font-mono);
  letter-spacing: .06em;
  color: var(--muted);
}

.footer-copyright { max-width: 60ch; }

/* ---------- 10. 小工具 ---------- */
.t-mono { font-family: var(--font-mono); }

.t-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- 11. 焦点与动效偏好 ---------- */
:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
  border-radius: 6px;
}

.btn--primary:focus-visible,
.skip-link:focus-visible {
  outline-color: var(--paper);
}

/* ---------- 12. 响应式 ---------- */
@media (max-width: 1240px) {
  .brand-note { display: none; }
}

@media (max-width: 1180px) {
  .btn--ghost { display: none; }
}

@media (max-width: 1023px) {
  .site-header { padding: 10px 12px 0; }

  .header-inner {
    gap: 10px;
    padding: 8px 8px 8px 12px;
    border-radius: 24px;
  }

  .brand { flex: 1 1 auto; }

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

  .capsule-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: calc(100% + 10px);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: 14px 12px;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: rgba(18, 20, 23, .98);
    box-shadow: 0 34px 64px -34px #000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity .22s var(--ease), transform .22s var(--ease), visibility .22s var(--ease);
  }

  .capsule-nav[data-open="true"] {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    width: 100%;
  }

  .nav-link {
    padding: 13px 14px;
    border-left: 2px solid transparent;
    border-radius: 12px;
    font-size: 16px;
    color: var(--paper);
  }

  .nav-link:hover { background: rgba(198, 255, 61, .08); }

  .nav-link[aria-current="page"] {
    border-left-color: var(--lime);
    background: rgba(198, 255, 61, .1);
  }

  .nav-slider { display: none; }

  .grid > [class*="col-"] { grid-column: span 12; }
  .grid > .col-half { grid-column: span 6; }

  .module-index {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 6px 18px;
    padding: 12px 0 0;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }

  .grid > .col-half { grid-column: span 12; }

  .btn { padding: 9px 14px; font-size: 13px; }
  .brand-name { font-size: 15px; }

  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .data-table { min-width: 460px; }
  .data-table th,
  .data-table td { padding: 11px 14px; }
}

@media (max-width: 420px) {
  .brand-text { display: none; }
}

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

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

  .data-card:hover { transform: none; }
  .footer-links a:hover { transform: none; }
  .header-progress::after { transition: none; }
}