/* ============================================================
   赢体育唯一站 · 共享样式表 /assets/site.css
   夜间球场数据舱 / 蓝图网格 / 荧光青锚点
   ============================================================ */

/* ---------- 1. 设计令牌 ---------- */
:root {
  --ink: #04120C;
  --ink-2: #061A12;
  --panel: #0A2018;
  --panel-2: #0D281E;
  --line: #1B3A2E;
  --line-soft: rgba(27, 58, 46, .62);
  --cyan: #00E6B8;
  --cyan-soft: #7CF7D8;
  --cyan-dim: rgba(0, 230, 184, .12);
  --orange: #FF4B2B;
  --amber: #FFB020;
  --white: #F2F7F4;
  --silver: #C9D6D0;
  --muted: #9BB3A9;

  --ease: cubic-bezier(.2, .8, .2, 1);
  --gutter: clamp(16px, 4vw, 40px);
  --radius: 2px;

  --font-display: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC",
    "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: var(--font-display);
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, Consolas,
    "Liberation Mono", "Courier New", monospace;
}

/* ---------- 2. Reset 与基础排版 ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  color: var(--white);
  background-color: var(--ink);
  background-image:
    radial-gradient(900px 520px at 84% -6%, rgba(0, 230, 184, .10), transparent 62%),
    radial-gradient(760px 520px at -8% 106%, rgba(255, 75, 43, .055), transparent 66%),
    linear-gradient(rgba(27, 58, 46, .34) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27, 58, 46, .34) 1px, transparent 1px);
  background-size: auto, auto, 64px 64px, 64px 64px;
  background-repeat: no-repeat, no-repeat, repeat, repeat;
  background-attachment: fixed, fixed, scroll, scroll;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -.012em;
}

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

ul, ol { margin: 0; padding: 0; }

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

button { font: inherit; color: inherit; }

table { border-collapse: collapse; }

address { font-style: normal; }

hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 0;
}

[id] { scroll-margin-top: 104px; }

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

/* 焦点可见 */
:focus-visible {
  outline: 2px solid var(--cyan-soft);
  outline-offset: 3px;
  border-radius: var(--radius);
}

/* ---------- 3. 跳转链接 ---------- */
.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -80px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--cyan);
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius);
  transition: top .2s var(--ease);
}
.skip-link:focus {
  top: 14px;
  color: var(--ink);
}

/* ---------- 4. 布局工具 ---------- */
.wrap {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.section {
  padding-top: clamp(48px, 7vw, 96px);
  padding-bottom: clamp(48px, 7vw, 96px);
}

.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px 24px;
  margin-bottom: clamp(22px, 3vw, 36px);
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.section__title {
  font-size: clamp(26px, 3.4vw, 44px);
  letter-spacing: -.02em;
}

.eyebrow {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--cyan);
  text-transform: uppercase;
}

.h-display {
  margin: 0 0 18px;
  font-size: clamp(34px, 6.4vw, 84px);
  font-weight: 900;
  line-height: 1.03;
  letter-spacing: -.03em;
}
.h-display em {
  font-style: normal;
  color: var(--cyan);
}

.lead {
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.75;
  color: var(--silver);
  max-width: 64ch;
}

.note {
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--muted);
  letter-spacing: .02em;
}

.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
  letter-spacing: -.01em;
}

.grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 28px);
}
.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)); }

/* ---------- 5. 通用组件 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .01em;
  line-height: 1.2;
  text-decoration: none;
  cursor: pointer;
  transition: background .22s var(--ease), color .22s var(--ease),
    border-color .22s var(--ease), transform .22s var(--ease);
}
.btn--primary {
  background: var(--cyan);
  color: var(--ink);
}
.btn--primary:hover {
  background: var(--cyan-soft);
  color: var(--ink);
  transform: translateY(-1px);
}
.btn--ghost {
  border-color: var(--line);
  background: rgba(10, 32, 24, .6);
  color: var(--white);
}
.btn--ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}
.btn--sm {
  padding: 8px 14px;
  font-size: 13px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  line-height: 1.6;
  color: var(--silver);
  white-space: nowrap;
}
.tag--cyan {
  color: var(--cyan);
  border-color: rgba(0, 230, 184, .45);
  background: var(--cyan-dim);
}
.tag--amber {
  color: var(--amber);
  border-color: rgba(255, 176, 32, .42);
  background: rgba(255, 176, 32, .08);
}
.tag--orange {
  color: var(--orange);
  border-color: rgba(255, 75, 43, .48);
  background: rgba(255, 75, 43, .09);
}
.tag--dot::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.card {
  position: relative;
  padding: clamp(18px, 2.2vw, 26px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(10, 32, 24, .94), rgba(7, 24, 17, .94));
}
.card::before {
  content: "";
  position: absolute;
  left: -1px;
  top: -1px;
  width: 14px;
  height: 14px;
  border-top: 2px solid var(--cyan);
  border-left: 2px solid var(--cyan);
}

.metric {
  display: grid;
  gap: 4px;
}
.metric__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(34px, 5vw, 58px);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  letter-spacing: -.02em;
}
.metric__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--muted);
}

.data-table {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-variant-numeric: tabular-nums;
}
.data-table caption {
  caption-side: top;
  padding-bottom: 10px;
  text-align: left;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--muted);
}
.data-table th {
  text-align: left;
  font-weight: 600;
  letter-spacing: .05em;
  color: var(--silver);
  background: rgba(27, 58, 46, .42);
}
.data-table th,
.data-table td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--line);
}
.data-table tbody tr:last-child td { border-bottom: 0; }
.data-table tbody tr:hover { background: rgba(0, 230, 184, .06); }
.data-table .is-key { color: var(--cyan); }

/* ---------- 6. 图像容器基础规则 ---------- */
.media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(140deg, #0B2A20 0%, #04120C 72%);
}
.media--wide { aspect-ratio: 21 / 9; }
.media--tall { aspect-ratio: 4 / 5; }
.media > img,
.media > svg,
.media > video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.media--turf > img {
  filter: saturate(.72) contrast(1.06) brightness(.88);
}
.media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 230, 184, .085) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 230, 184, .085) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: .6;
  mix-blend-mode: screen;
}
.media__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 2;
  max-width: 100%;
  padding: 8px 12px;
  border-top: 1px solid var(--line);
  background: rgba(4, 18, 12, .82);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  color: var(--muted);
}

/* ---------- 7. 面包屑 ---------- */
.crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
}
.crumbs li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--muted);
}
.crumbs li + li::before {
  content: "";
  width: 12px;
  height: 1px;
  background: var(--line);
}
.crumbs a {
  color: var(--silver);
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.crumbs a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 8. 头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  padding: 10px var(--gutter) 0;
  background: linear-gradient(180deg,
    rgba(4, 18, 12, .97) 0%,
    rgba(4, 18, 12, .88) 58%,
    rgba(4, 18, 12, .55) 100%);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: 14px;
  max-width: 1400px;
  margin: 0 auto;
}

/* 品牌浮岛 */
.brand-island {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 1 auto;
  padding: 8px 16px 8px 10px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(10, 32, 24, .78);
  text-decoration: none;
  transition: border-color .22s var(--ease), background .22s var(--ease);
}
.brand-island:hover {
  border-color: rgba(0, 230, 184, .5);
  background: rgba(13, 40, 30, .9);
}

.brand-mark {
  position: relative;
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  border: 1px solid var(--cyan);
  border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(0, 230, 184, .2), transparent 62%);
}
.brand-mark::before {
  content: "";
  position: absolute;
  inset: 5px;
  border: 1px solid rgba(0, 230, 184, .45);
}
.brand-mark::after {
  content: "";
  position: absolute;
  right: -4px;
  bottom: -4px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 2px var(--ink);
}
.brand-mark--lg {
  width: 38px;
  height: 38px;
}

.brand-copy {
  display: grid;
  gap: 1px;
  min-width: 0;
}
.brand-name {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--white);
  white-space: nowrap;
}
.brand-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--muted);
  white-space: nowrap;
}

/* 胶囊导航 */
.nav-island {
  margin: 0 auto;
  padding: 5px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(8, 26, 19, .88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.nav {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
}
.nav a {
  display: block;
  padding: 8px 13px;
  border-radius: 999px;
  font-size: 14px;
  line-height: 1.4;
  color: var(--silver);
  white-space: nowrap;
  transition: background .22s var(--ease), color .22s var(--ease);
}
.nav a:hover {
  color: var(--white);
  background: var(--cyan-dim);
}
.nav a[aria-current="page"] {
  background: var(--cyan);
  color: var(--ink);
  font-weight: 700;
}

/* 头部右侧 */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}

.header-metric {
  display: flex;
  align-items: baseline;
  gap: 5px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--muted);
  white-space: nowrap;
}
.header-metric b {
  font-size: 16px;
  font-weight: 700;
  color: var(--cyan);
}

/* 移动端导航按钮 */
.nav-toggle {
  display: none;
  position: relative;
  flex: 0 0 auto;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(10, 32, 24, .9);
  cursor: pointer;
}
.nav-toggle span {
  position: absolute;
  left: 11px;
  right: 11px;
  height: 2px;
  background: var(--cyan);
  transition: transform .22s var(--ease), opacity .22s var(--ease);
}
.nav-toggle span:nth-child(1) { top: 14px; }
.nav-toggle span:nth-child(2) { top: 20px; }
.nav-toggle span:nth-child(3) { top: 26px; }
.site-header[data-open] .nav-toggle span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.site-header[data-open] .nav-toggle span:nth-child(2) { opacity: 0; }
.site-header[data-open] .nav-toggle span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* 阅读进度条 */
.readout {
  position: relative;
  max-width: 1400px;
  height: 2px;
  margin: 8px auto 0;
  overflow: hidden;
  background: var(--line-soft);
}
.readout__bar {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--cyan-soft));
  transition: width .1s linear;
}

/* ---------- 9. 页脚 ---------- */
.site-footer {
  margin-top: clamp(56px, 8vw, 110px);
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg,
    rgba(10, 32, 24, .5) 0%,
    rgba(5, 18, 12, .96) 70%);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 40px 28px;
  max-width: 1280px;
  margin: 0 auto;
  padding: clamp(40px, 6vw, 68px) var(--gutter) 34px;
}

.footer-brand {
  grid-column: 1 / -1;
  display: grid;
  gap: 14px;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--line);
}
.footer-brand__top {
  display: flex;
  align-items: center;
  gap: 14px;
}
.footer-brand__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: .01em;
  color: var(--white);
}
.footer-brand__tag {
  margin: 2px 0 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .16em;
  color: var(--cyan);
}
.footer-note {
  margin: 0;
  max-width: 62ch;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

.footer-col__title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--cyan);
}

.footer-list {
  display: grid;
  gap: 9px;
  list-style: none;
}
.footer-list a {
  display: inline-block;
  font-size: 14px;
  color: var(--silver);
  transition: color .2s var(--ease), transform .2s var(--ease);
}
.footer-list a:hover {
  color: var(--cyan-soft);
  transform: translateX(4px);
}

.footer-contact {
  display: grid;
  gap: 12px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--silver);
  word-break: break-word;
}
.footer-contact b {
  display: block;
  margin-bottom: 3px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .14em;
  color: var(--muted);
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 26px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 18px var(--gutter) 30px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .03em;
  color: var(--muted);
}
.footer-copy { margin: 0; }
.footer-icp {
  margin: 0;
  color: var(--muted);
}
.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  list-style: none;
}
.footer-legal a {
  color: var(--silver);
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.footer-legal a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 10. 动效与显现 ---------- */
[data-reveal] {
  transition: opacity .5s var(--ease), transform .5s var(--ease);
}
.js-ready [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
}
.js-ready [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

[data-spy] a {
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
[data-spy] a.is-current {
  color: var(--cyan);
  border-color: var(--cyan);
}

@keyframes island-in {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 11. 响应式 ---------- */
@media (max-width: 1180px) {
  .header-metric { display: none; }
}

@media (max-width: 1080px) {
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 980px) {
  .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .nav-toggle { display: block; }

  .site-header__inner { gap: 10px; }
  .brand-island { padding: 7px 12px 7px 9px; }

  .nav-island {
    position: absolute;
    left: var(--gutter);
    right: var(--gutter);
    top: calc(100% - 4px);
    z-index: 95;
    display: none;
    margin: 0;
    padding: 10px;
    border-radius: 16px;
    background: rgba(8, 26, 19, .98);
    box-shadow: 0 26px 54px rgba(0, 0, 0, .6);
  }
  .site-header[data-open] .nav-island {
    display: block;
    animation: island-in .22s var(--ease) both;
  }

  .nav {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }
  .nav a {
    padding: 12px 14px;
    border-radius: 10px;
    font-size: 15px;
  }
  .nav a:hover { background: rgba(0, 230, 184, .08); }
  .nav a[aria-current="page"] {
    background: var(--cyan-dim);
    color: var(--cyan-soft);
    box-shadow: inset 0 0 0 1px rgba(0, 230, 184, .5);
  }

  .header-actions { margin-left: auto; }
}

@media (max-width: 720px) {
  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 620px) {
  .footer-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 30px;
  }
  .footer-bottom { font-size: 11.5px; }
}

@media (max-width: 560px) {
  .brand-sub { display: none; }
  .brand-name { font-size: 14px; }
  .btn--sm { padding: 8px 12px; font-size: 13px; }
  .media--wide { aspect-ratio: 16 / 9; }
}

/* ---------- 12. 减少动态效果 ---------- */
@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-ready [data-reveal] {
    opacity: 1;
    transform: none;
  }
  .readout__bar { transition: none; }
}