/* ==========================================================================
   天空体育赛场 · 共享样式 /assets/site.css
   夜场底色 + 珠宝色分区 + 荧光青绿数据高亮
   ========================================================================== */

:root {
  --ink: #05080F;
  --zone-teal: #0A2230;
  --zone-indigo: #161A3C;
  --zone-wine: #3B1220;
  --glass: rgba(255, 255, 255, 0.08);
  --glass-strong: rgba(255, 255, 255, 0.16);
  --mint: #3CF2C4;
  --mint-soft: #9BF7DF;
  --ember: #FF8A3D;
  --text: #EDF4F7;
  --muted: #93A6B4;
  --line: #1E2C38;

  --rail-w: 88px;
  --status-h: 28px;

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

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

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

html.u-nav-locked,
html.u-nav-locked body {
  overflow: hidden;
}

body {
  margin: 0;
  padding-left: var(--rail-w);
  min-height: 100vh;
  background-color: var(--ink);
  background-image:
    radial-gradient(1200px 640px at 82% -10%, rgba(60, 242, 196, 0.10), transparent 60%),
    radial-gradient(900px 520px at 0% 6%, rgba(22, 26, 60, 0.85), transparent 70%);
  background-repeat: no-repeat;
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
  border: 0;
}

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

h1,
h2,
h3,
h4 {
  margin: 0;
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: -0.02em;
}

p {
  margin: 0 0 1em;
}

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

a {
  color: var(--mint);
  text-decoration: none;
  transition: color 0.18s var(--ease);
}

a:hover {
  color: var(--mint-soft);
}

button {
  font: inherit;
  color: inherit;
}

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

main:focus {
  outline: none;
}

::selection {
  background: var(--mint);
  color: #04211B;
}

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

/* ---------- 跳过链接 ---------- */
.skip-link {
  position: fixed;
  top: 8px;
  left: calc(var(--rail-w) + 14px);
  z-index: 300;
  padding: 10px 20px;
  background: var(--mint);
  color: #04211B;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.02em;
  transform: translateY(-180%);
  transition: transform 0.18s var(--ease);
}

.skip-link:focus {
  transform: translateY(0);
  color: #04211B;
}

/* ==========================================================================
   头部 —— 状态条
   ========================================================================== */

.site-header {
  position: relative;
  z-index: 200;
}

.status-bar {
  position: fixed;
  top: 0;
  left: var(--rail-w);
  right: 0;
  height: var(--status-h);
  z-index: 170;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 18px;
  background: rgba(10, 34, 48, 0.86);
  border-bottom: 1px solid var(--line);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.status-bar__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mint);
  flex: none;
  animation: status-breathe 1.2s var(--ease) 1;
}

@keyframes status-breathe {
  0% { box-shadow: 0 0 0 0 rgba(60, 242, 196, 0.55); }
  100% { box-shadow: 0 0 0 11px rgba(60, 242, 196, 0); }
}

.status-bar__label {
  color: var(--muted);
}

.status-bar__time {
  color: var(--mint-soft);
  font-variant-numeric: tabular-nums;
}

.status-bar__info {
  margin-left: auto;
  padding: 2px 9px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.status-bar__info:hover,
.status-bar__info[aria-expanded="true"] {
  border-color: var(--mint);
  color: var(--mint);
}

.status-bar__note {
  position: absolute;
  top: calc(100% + 8px);
  right: 16px;
  width: min(320px, 74vw);
  margin: 0;
  padding: 12px 16px;
  z-index: 175;
  background: var(--zone-teal);
  border: 1px solid var(--line);
  border-left: 2px solid var(--mint);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 400;
  line-height: 1.65;
  letter-spacing: 0.01em;
  text-transform: none;
}

.status-bar__note[hidden] {
  display: none;
}

.status-bar__progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 2px;
  width: 0;
  background: linear-gradient(90deg, var(--mint), var(--mint-soft));
  transition: width 0.08s linear;
}

/* ==========================================================================
   头部 —— 左侧品牌轨道
   ========================================================================== */

.rail {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--rail-w);
  z-index: 160;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: calc(var(--status-h) + 20px) 0 22px;
  background: linear-gradient(180deg, rgba(22, 26, 60, 0.62) 0%, rgba(5, 8, 15, 0.94) 62%);
  border-right: 1px solid var(--line);
}

.rail__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  color: var(--text);
}

.rail__brand:hover {
  color: var(--mint);
}

.rail__mark {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 1px solid rgba(60, 242, 196, 0.55);
  color: var(--mint);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0;
  transition: background 0.18s var(--ease), color 0.18s var(--ease);
}

.rail__brand:hover .rail__mark {
  background: var(--mint);
  color: #04211B;
}

.rail__name {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.34em;
  color: inherit;
}

.rail__scale {
  flex: 1 1 auto;
  width: 1px;
  margin: 24px 0;
  background-image: repeating-linear-gradient(
    180deg,
    var(--line) 0,
    var(--line) 1px,
    transparent 1px,
    transparent 12px
  );
}

.rail__top {
  padding: 10px 6px;
  writing-mode: vertical-rl;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  cursor: pointer;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.rail__top:hover {
  color: var(--mint);
  border-color: var(--mint);
}

/* ==========================================================================
   头部 —— 浮岛胶囊导航
   ========================================================================== */

.site-nav {
  position: fixed;
  top: calc(var(--status-h) + 18px);
  right: 24px;
  z-index: 150;
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 6px;
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 999px;
  background: var(--glass);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  backdrop-filter: blur(16px) saturate(150%);
  transition: background 0.2s var(--ease), padding 0.2s var(--ease), border-color 0.2s var(--ease);
}

.site-header[data-scrolled] .site-nav {
  padding: 4px;
  background: rgba(8, 18, 26, 0.95);
  border-color: var(--line);
}

.site-nav__brand {
  display: none;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.site-nav__link {
  display: block;
  padding: 9px 14px;
  border-radius: 999px;
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: background 0.18s var(--ease), color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.site-nav__link:hover {
  background: var(--glass-strong);
  color: var(--mint);
}

.site-nav__link[aria-current="page"] {
  background: rgba(60, 242, 196, 0.14);
  color: var(--mint);
  box-shadow: inset 0 0 0 1px rgba(60, 242, 196, 0.38);
}

.site-nav__cta {
  margin-left: 6px;
  padding: 9px 16px;
  border-radius: 999px;
  background: var(--ember);
  color: #1A0A02;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: background 0.18s var(--ease), transform 0.18s var(--ease);
}

.site-nav__cta:hover {
  background: #FFA066;
  color: #1A0A02;
  transform: translateY(-1px);
}

/* 移动端导航按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  position: fixed;
  left: 20px;
  bottom: 20px;
  z-index: 180;
  width: 58px;
  height: 58px;
  padding: 0;
  border: 1px solid rgba(60, 242, 196, 0.45);
  border-radius: 50%;
  background: rgba(10, 34, 48, 0.94);
  color: var(--mint);
  cursor: pointer;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transition: background 0.18s var(--ease), border-color 0.18s var(--ease);
}

.nav-toggle:hover {
  background: var(--zone-teal);
  border-color: var(--mint);
}

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  transition: background 0.18s var(--ease);
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: currentColor;
  transition: transform 0.2s var(--ease), top 0.2s var(--ease);
}

.nav-toggle__bars::before { top: -6px; }
.nav-toggle__bars::after { top: 6px; }

.nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after { top: 0; transform: rotate(-45deg); }

/* ==========================================================================
   页脚
   ========================================================================== */

.site-footer {
  position: relative;
  margin-top: clamp(64px, 9vw, 128px);
  padding: clamp(44px, 5vw, 68px) 0 30px;
  background: linear-gradient(180deg, #0A1018 0%, #06090F 100%);
  border-top: 1px solid var(--line);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 7px;
  background-image: repeating-linear-gradient(
    90deg,
    var(--line) 0,
    var(--line) 1px,
    transparent 1px,
    transparent 48px
  );
  pointer-events: none;
}

.footer-inner {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: clamp(18px, 3.2vw, 44px);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(250px, 1.55fr) repeat(3, minmax(140px, 0.72fr));
  gap: clamp(30px, 4vw, 56px);
}

.footer-brand__mark {
  display: inline-block;
  color: var(--text);
  font-size: 21px;
  font-weight: 900;
  letter-spacing: 0.02em;
  line-height: 1.2;
}

.footer-brand__mark:hover {
  color: var(--mint);
}

.footer-brand__note {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mint-soft);
}

.footer-brand__text {
  margin: 18px 0 0;
  max-width: 34ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.footer-brand__meta {
  display: grid;
  gap: 8px;
  margin: 22px 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
  word-break: break-word;
}

.footer-brand__key {
  display: inline-block;
  min-width: 40px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mint-soft);
}

.footer-col__title {
  margin: 0 0 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mint-soft);
}

.footer-col__list {
  display: grid;
  gap: 11px;
}

.footer-col__link {
  color: var(--text);
  font-size: 14.5px;
  letter-spacing: 0.01em;
  transition: color 0.18s var(--ease), padding-left 0.18s var(--ease);
}

.footer-col__link:hover {
  color: var(--mint);
  padding-left: 3px;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 32px;
  margin-top: clamp(36px, 4.5vw, 60px);
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--muted);
}

.footer-legal__line {
  margin: 0;
}

.footer-legal__links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-legal__link {
  color: var(--muted);
}

.footer-legal__link:hover {
  color: var(--mint);
}

/* ==========================================================================
   通用排版与组件
   ========================================================================== */

main {
  display: block;
  padding-top: calc(var(--status-h) + 92px);
}

.container {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: clamp(18px, 3.2vw, 44px);
}

.section {
  position: relative;
  padding-block: clamp(52px, 7vw, 104px);
}

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

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 28px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--mint-soft);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--mint);
  flex: none;
}

.display {
  font-size: clamp(44px, 7.4vw, 120px);
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: -0.02em;
}

.lede {
  max-width: 42ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--muted);
}

.num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

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

.kpi__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(30px, 4vw, 48px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--muted);
  transition: color 0.18s var(--ease);
}

.card:hover .kpi__value,
.kpi:hover .kpi__value {
  color: var(--mint);
}

.kpi__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.card {
  padding: clamp(18px, 2.4vw, 30px);
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--zone-teal);
  transition: transform 0.18s var(--ease), background 0.18s var(--ease), border-color 0.18s var(--ease);
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(60, 242, 196, 0.42);
  background: #0C2735;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.18s var(--ease), color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.chip:hover {
  color: var(--mint);
  border-color: rgba(60, 242, 196, 0.45);
}

.chip[aria-pressed="true"],
.chip.is-active {
  background: var(--mint);
  border-color: var(--mint);
  color: #04211B;
  font-weight: 700;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 26px;
  border: 1px solid transparent;
  border-radius: 2px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background 0.18s var(--ease), color 0.18s var(--ease), border-color 0.18s var(--ease), transform 0.18s var(--ease);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--ember {
  background: var(--ember);
  color: #1A0A02;
}

.btn--ember:hover {
  background: #FFA066;
  color: #1A0A02;
}

.btn--mint {
  background: var(--mint);
  color: #04211B;
}

.btn--mint:hover {
  background: var(--mint-soft);
  color: #04211B;
}

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

.btn--ghost:hover {
  border-color: var(--mint);
  color: var(--mint);
}

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

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-block: 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.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(--mint);
}

/* ---------- 图片容器（页面阶段放占位图） ---------- */
.media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  background: var(--zone-teal);
}

.media > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.55) contrast(1.05) brightness(0.86);
  transition: transform 0.4s var(--ease);
}

.media:hover > img {
  transform: scale(1.02);
}

.media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(5, 8, 15, 0) 45%, rgba(5, 8, 15, 0.82) 100%);
}

.media__caption {
  position: absolute;
  left: 14px;
  bottom: 12px;
  z-index: 2;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--mint-soft);
}

.media--wide { aspect-ratio: 21 / 9; }
.media--4x3 { aspect-ratio: 4 / 3; }
.media--square { aspect-ratio: 1 / 1; }

/* ==========================================================================
   响应式：平板 / 手机
   ========================================================================== */

@media (max-width: 900px) {
  body {
    padding-left: 0;
    background-attachment: scroll;
  }

  .skip-link {
    left: 14px;
  }

  .rail {
    display: none;
  }

  .status-bar {
    left: 0;
    padding-inline: 14px;
    letter-spacing: 0.08em;
  }

  .status-bar__label {
    display: none;
  }

  main {
    padding-top: calc(var(--status-h) + 76px);
  }

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

  .site-nav {
    position: fixed;
    inset: 0;
    z-index: 155;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    padding: calc(var(--status-h) + 34px) 24px 40px;
    border: 0;
    border-radius: 0;
    background: rgba(5, 8, 15, 0.97);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    overflow-y: auto;
    overscroll-behavior: contain;
    transition: opacity 0.2s var(--ease), transform 0.2s var(--ease), visibility 0.2s var(--ease);
  }

  .site-nav[data-open] {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .site-header[data-scrolled] .site-nav {
    padding: calc(var(--status-h) + 34px) 24px 40px;
    background: rgba(5, 8, 15, 0.97);
    border-color: transparent;
  }

  .site-nav__brand {
    display: block;
    padding: 0 4px 20px;
    margin-bottom: 10px;
    border-bottom: 1px solid var(--line);
    font-size: 24px;
    font-weight: 900;
    letter-spacing: 0.02em;
    color: var(--text);
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .site-nav__link {
    padding: 16px 4px;
    border-bottom: 1px solid var(--line);
    border-radius: 0;
    font-size: 19px;
    font-weight: 700;
    letter-spacing: 0.01em;
  }

  .site-nav__link:hover {
    background: transparent;
  }

  .site-nav__link[aria-current="page"] {
    background: transparent;
    box-shadow: none;
    padding-left: 14px;
    border-left: 2px solid var(--mint);
  }

  .site-nav__cta {
    margin: 22px 0 0;
    padding: 16px;
    text-align: center;
    font-size: 16px;
  }

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

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

@media (max-width: 560px) {
  .footer-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 34px;
  }

  .footer-legal {
    font-size: 11.5px;
    gap: 8px 20px;
  }

  .display {
    font-size: clamp(38px, 11vw, 64px);
  }
}

/* ==========================================================================
   动效降级
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .card:hover,
  .btn:hover,
  .site-nav__cta:hover {
    transform: none;
  }

  .media:hover > img {
    transform: none;
  }
}