/* =========================================================
   乐动体育 · /assets/site.css
   共享外壳：深空蓝赛场 · 电光青与活力橙数据高亮
   ========================================================= */

/* ---------- 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, ol { padding: 0; list-style: none; }
img, svg, video, canvas { display: block; max-width: 100%; height: auto; }
button, input, select, textarea { font: inherit; color: inherit; }
button { border: 0; background: none; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; width: 100%; }
[hidden] { display: none !important; }

/* ---------- 2. 变量 ---------- */
:root {
  --c-space: #070F2B;
  --c-midnight: #0E1740;
  --c-cyan: #29E6D0;
  --c-orange: #FF6A2B;
  --c-violet: #7A4DFF;
  --c-teal: #0B3B3C;
  --c-wine: #6E1230;
  --c-mist: #E8EDF7;
  --c-mute: #9AA7C2;
  --c-white: #FFFFFF;
  --c-body: #C9D3E8;

  --line-weak: rgba(232, 237, 247, .12);
  --line: rgba(232, 237, 247, .2);
  --line-cyan: rgba(41, 230, 208, .42);
  --tint-cyan: rgba(41, 230, 208, .10);
  --tint-violet: rgba(122, 77, 255, .16);
  --tint-orange: rgba(255, 106, 43, .12);

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

  --shell: 1240px;
  --gutter: clamp(18px, 4vw, 40px);
  --r-xs: 6px;
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 26px;
  --r-pill: 999px;

  --sh-float: 0 22px 60px -30px rgba(2, 5, 18, .95);
  --sh-soft: 0 14px 36px -26px rgba(2, 5, 18, .85);

  --ease: cubic-bezier(.22, .72, .28, 1);
  --dur: .28s;
  --header-pad: 16px;
}

/* ---------- 3. 基础排版 ---------- */
body {
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--c-space);
  color: var(--c-body);
  font-family: var(--font-sans);
  font-size: clamp(15px, .35vw + 14px, 17px);
  font-weight: 400;
  line-height: 1.75;
  letter-spacing: .012em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(58vw 46vh at 10% -10%, rgba(122, 77, 255, .30), transparent 62%),
    radial-gradient(46vw 40vh at 98% 4%, rgba(41, 230, 208, .14), transparent 60%),
    radial-gradient(72vw 62vh at 50% 116%, rgba(11, 59, 60, .48), transparent 66%);
}
body.is-nav-open { overflow: hidden; }

h1, h2, h3, h4, h5, h6 { color: var(--c-white); font-weight: 800; line-height: 1.16; letter-spacing: -.02em; }
strong { color: var(--c-white); font-weight: 700; }
::selection { background: rgba(41, 230, 208, .3); color: var(--c-white); }
:focus-visible { outline: 2px solid var(--c-cyan); outline-offset: 3px; border-radius: var(--r-sm); }

/* ---------- 4. 布局容器 ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section { position: relative; padding-block: clamp(56px, 8vw, 120px); }
.section--raised { background: linear-gradient(180deg, rgba(14, 23, 64, .92), rgba(14, 23, 64, .40)); }
.section--teal { background: linear-gradient(150deg, rgba(11, 59, 60, .95), rgba(7, 15, 43, .55)); }
.section--wine { background: linear-gradient(150deg, rgba(110, 18, 48, .92), rgba(7, 15, 43, .55)); }
.section__head { display: grid; gap: 14px; max-width: 62em; margin-bottom: clamp(26px, 4vw, 52px); }
.section__title {
  font-size: clamp(1.6rem, 3.2vw, 2.5rem);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -.02em;
  color: var(--c-white);
}
.section__intro { max-width: 40em; color: var(--c-mute); font-size: 1.02rem; }

.grid { display: grid; gap: clamp(20px, 3vw, 40px); align-items: start; }
.grid--5-7, .grid--4-8, .grid--3 { grid-template-columns: minmax(0, 1fr); }
@media (min-width: 900px) {
  .grid--5-7 { grid-template-columns: 5fr 7fr; }
  .grid--4-8 { grid-template-columns: 4fr 8fr; }
  .grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* ---------- 5. 排版组件 ---------- */
.display-1 {
  font-size: clamp(2.6rem, 6.4vw, 4.5rem);
  font-weight: 900;
  line-height: 1.03;
  letter-spacing: -.025em;
  color: var(--c-white);
}
.display-2 {
  font-size: clamp(2rem, 4.6vw, 3.5rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--c-white);
}
.display-3 {
  font-size: clamp(1.6rem, 3.2vw, 2.5rem);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -.02em;
  color: var(--c-white);
}
.lede { max-width: 34em; font-size: clamp(1.04rem, 1.5vw, 1.2rem); line-height: 1.7; color: var(--c-body); }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: .74rem;
  font-weight: 500;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--c-cyan);
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: linear-gradient(90deg, var(--c-cyan), rgba(41, 230, 208, 0));
}
.prose { max-width: 38em; }
.prose p + p { margin-top: 1.1em; }
.prose h2, .prose h3 { margin-top: 1.6em; margin-bottom: .5em; }
.prose ul, .prose ol { margin-top: .8em; padding-left: 1.1em; list-style: disc; }
.prose li + li { margin-top: .4em; }

/* ---------- 6. 通用组件 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5em;
  padding: 11px 20px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-size: .94rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: .02em;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease),
              color var(--dur) var(--ease), transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.btn--primary {
  background: linear-gradient(118deg, var(--c-orange), #FF9152);
  color: #22100A;
  box-shadow: 0 14px 32px -18px rgba(255, 106, 43, .9);
}
.btn--primary:hover { transform: translateY(-1px); box-shadow: 0 18px 40px -18px rgba(255, 106, 43, 1); }
.btn--ghost {
  border-color: var(--line-cyan);
  background: rgba(41, 230, 208, .07);
  color: var(--c-cyan);
}
.btn--ghost:hover { background: rgba(41, 230, 208, .18); border-color: var(--c-cyan); }
.btn--quiet { border-color: var(--line); color: var(--c-mist); }
.btn--quiet:hover { border-color: var(--line-cyan); color: var(--c-cyan); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: rgba(232, 237, 247, .05);
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .1em;
  color: var(--c-mute);
}
.tag--cyan { color: var(--c-cyan); border-color: var(--line-cyan); background: var(--tint-cyan); }
.tag--violet { color: #C6B4FF; border-color: rgba(122, 77, 255, .46); background: var(--tint-violet); }
.tag--orange { color: #FFB08A; border-color: rgba(255, 106, 43, .42); background: var(--tint-orange); }

.stat {
  display: grid;
  gap: 6px;
  padding: 18px 20px;
  border: 1px solid var(--line-weak);
  border-radius: var(--r-md);
  background: linear-gradient(160deg, rgba(14, 23, 64, .88), rgba(7, 15, 43, .72));
  box-shadow: inset 0 1px 0 rgba(232, 237, 247, .05);
}
.stat__value {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3vw, 2.05rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -.02em;
  color: var(--c-white);
  font-variant-numeric: tabular-nums;
}
.stat__value--accent { color: var(--c-orange); }
.stat__value--cyan { color: var(--c-cyan); }
.stat__label { font-size: .86rem; color: var(--c-mute); }
.stat__meta {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.figure { display: grid; gap: 14px; }
.figure__media {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line-weak);
  border-radius: var(--r-lg);
  background:
    radial-gradient(80% 90% at 14% 0%, rgba(41, 230, 208, .22), transparent 60%),
    radial-gradient(70% 84% at 100% 100%, rgba(122, 77, 255, .34), transparent 66%),
    linear-gradient(160deg, var(--c-midnight), var(--c-space));
}
.figure__media img { width: 100%; height: 100%; object-fit: cover; }
.figure__media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(232, 237, 247, .06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232, 237, 247, .06) 1px, transparent 1px);
  background-size: 52px 52px;
}
.figure__media--tall { aspect-ratio: 4 / 5; }
.figure__media--wide { aspect-ratio: 21 / 9; }
.figure__caption { font-size: .84rem; line-height: 1.6; color: var(--c-mute); }

.breadcrumb { padding-block: 6px 0; }
.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--c-mute);
}
.breadcrumb__item { display: inline-flex; align-items: center; gap: 8px; }
.breadcrumb__item[aria-current="page"] { color: var(--c-cyan); }
.breadcrumb__link { color: var(--c-mute); transition: color var(--dur) var(--ease); }
.breadcrumb__link:hover { color: var(--c-cyan); }
.breadcrumb__sep { color: rgba(154, 167, 194, .5); }

.rule {
  height: 1px;
  border: 0;
  margin-block: clamp(28px, 4vw, 52px);
  background: linear-gradient(90deg, rgba(41, 230, 208, .5), rgba(122, 77, 255, .35), transparent);
}
.texture-grid {
  background-image:
    linear-gradient(rgba(232, 237, 247, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232, 237, 247, .045) 1px, transparent 1px);
  background-size: 56px 56px;
}

/* ---------- 7. 头部 ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 50%;
  z-index: 120;
  padding: 10px 18px;
  border-radius: var(--r-pill);
  background: var(--c-cyan);
  color: #04211F;
  font-weight: 700;
  transform: translate(-50%, -180%);
  transition: transform var(--dur) var(--ease);
}
.skip-link:focus-visible { transform: translate(-50%, 0); }

.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  padding: var(--header-pad) var(--gutter) 0;
  pointer-events: none;
}
.header-shell {
  position: relative;
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
}
.header-island {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 22px);
  padding: 10px 12px 10px 18px;
  border: 1px solid var(--line-weak);
  border-radius: var(--r-pill);
  background: linear-gradient(115deg, rgba(14, 23, 64, .94), rgba(7, 15, 43, .86));
  box-shadow: var(--sh-float);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  pointer-events: auto;
  transition: padding var(--dur) var(--ease), border-color var(--dur) var(--ease),
              background-color var(--dur) var(--ease);
}
.site-header[data-scrolled] .header-island {
  padding-block: 7px;
  border-color: var(--line-cyan);
}
.site-header[data-scrolled] .brand-text__meta { opacity: 0; }

.brand { display: inline-flex; align-items: center; gap: 11px; flex: 0 0 auto; }
.brand-mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 11px;
  background: conic-gradient(from 210deg, var(--c-cyan), var(--c-violet), var(--c-orange), var(--c-cyan));
  box-shadow: inset 0 0 0 1px rgba(232, 237, 247, .16), 0 10px 26px -14px rgba(41, 230, 208, .75);
}
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 8px;
  background: linear-gradient(160deg, var(--c-midnight), var(--c-space));
}
.brand-mark__pulse {
  position: relative;
  z-index: 1;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-cyan);
  box-shadow: 0 0 10px 2px rgba(41, 230, 208, .8);
}
.brand-text { display: grid; line-height: 1.15; }
.brand-text__name { font-size: 1rem; font-weight: 800; letter-spacing: .02em; color: var(--c-white); }
.brand-text__meta {
  font-family: var(--font-mono);
  font-size: .66rem;
  letter-spacing: .14em;
  color: var(--c-mute);
  transition: opacity var(--dur) var(--ease);
}
.brand--footer { gap: 12px; }
.brand--footer .brand-text__name { font-size: 1.06rem; }

.nav { margin-inline: auto; }
.nav__list { display: flex; align-items: center; gap: 2px; }
.nav__item { flex: 0 0 auto; }
.nav__link {
  position: relative;
  display: block;
  padding: 9px 13px;
  border-radius: var(--r-pill);
  font-size: .95rem;
  font-weight: 500;
  color: var(--c-mute);
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.nav__link:hover { color: var(--c-white); background: rgba(232, 237, 247, .07); }
.nav__link[aria-current="page"] { color: var(--c-white); background: var(--tint-cyan); }
.nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 13px;
  right: 13px;
  bottom: 3px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--c-cyan), var(--c-violet));
}

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

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(232, 237, 247, .06);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.nav-toggle:hover { border-color: var(--line-cyan); }
.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--c-mist);
  transition: transform var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.nav-toggle__bars { position: relative; display: block; }
.nav-toggle__bars::before,
.nav-toggle__bars::after { content: ""; position: absolute; left: 0; }
.nav-toggle__bars::before { top: -6px; }
.nav-toggle__bars::after { top: 6px; }
.site-header[data-open] .nav-toggle__bars { background: transparent; }
.site-header[data-open] .nav-toggle__bars::before { transform: translateY(6px) rotate(45deg); }
.site-header[data-open] .nav-toggle__bars::after { transform: translateY(-6px) rotate(-45deg); }

.header-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 90;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--c-cyan), var(--c-violet) 48%, var(--c-orange));
  pointer-events: none;
}

@media (max-width: 1023px) {
  :root { --header-pad: 12px; }
  .header-island { gap: 10px; padding: 9px 10px 9px 14px; border-radius: 22px; }
  .brand-text__meta { display: none; }
  .nav-toggle { display: inline-flex; margin-left: auto; }
  .header-actions .btn--ghost { display: none; }
  .header-actions .btn { padding: 10px 16px; font-size: .88rem; }

  .nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    z-index: 5;
    display: grid;
    gap: 6px;
    margin: 0;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: linear-gradient(165deg, rgba(14, 23, 64, .99), rgba(7, 15, 43, .98));
    box-shadow: var(--sh-float);
    max-height: calc(100vh - 150px);
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: opacity .24s var(--ease), transform .24s var(--ease), visibility .24s var(--ease);
  }
  .nav__list { flex-direction: column; align-items: stretch; gap: 6px; }
  .nav__link {
    padding: 14px 16px;
    border-radius: 14px;
    background: rgba(232, 237, 247, .045);
    font-size: 1.02rem;
    font-weight: 600;
    color: var(--c-mist);
  }
  .nav__link[aria-current="page"] { background: var(--tint-cyan); color: var(--c-white); }
  .nav__link[aria-current="page"]::after { left: 16px; right: auto; width: 22px; bottom: 9px; }
  .site-header[data-open] .nav { opacity: 1; visibility: visible; transform: none; }
}

@media (max-width: 400px) {
  .brand-text__name { font-size: .92rem; }
  .header-actions .btn { padding: 9px 13px; font-size: .84rem; }
}

/* ---------- 8. 页脚 ---------- */
.site-footer {
  margin-top: clamp(64px, 9vw, 140px);
  border-top: 1px solid var(--line-weak);
  background: linear-gradient(180deg, rgba(14, 23, 64, .45), rgba(7, 15, 43, .98));
}
.footer-inner {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding: clamp(48px, 6vw, 84px) var(--gutter) 30px;
}
.footer-grid { display: grid; gap: clamp(30px, 4vw, 54px); }
@media (min-width: 760px) { .footer-grid { grid-template-columns: 1.3fr 1fr 1fr; } }
@media (min-width: 1060px) { .footer-grid { grid-template-columns: 1.6fr .8fr .8fr 1.25fr; } }

.footer-brand { display: grid; gap: 14px; align-content: start; }
.footer-tagline { max-width: 30em; font-size: .98rem; color: var(--c-body); }
.footer-hours { font-family: var(--font-mono); font-size: .76rem; letter-spacing: .12em; color: var(--c-cyan); }

.footer-col { display: grid; gap: 14px; align-content: start; }
.footer-col--contact { gap: 16px; }
.footer-col__title {
  font-family: var(--font-mono);
  font-size: .76rem;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--c-mute);
}
.footer-list { display: grid; gap: 9px; }
.footer-link {
  display: inline-block;
  font-size: .95rem;
  color: var(--c-body);
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.footer-link:hover { color: var(--c-cyan); transform: translateX(3px); }
.footer-link[aria-current="page"] { color: var(--c-cyan); }

.footer-list--contact { gap: 12px; }
.footer-contact { display: grid; gap: 2px; }
.footer-contact__key {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-mute);
}
.footer-contact__value {
  font-family: var(--font-mono);
  font-size: .92rem;
  color: var(--c-white);
  word-break: break-word;
}
.footer-note { max-width: 34em; font-size: .86rem; color: var(--c-mute); }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin-top: clamp(36px, 5vw, 60px);
  padding-top: 20px;
  border-top: 1px solid var(--line-weak);
}
.footer-legal {
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .06em;
  color: var(--c-mute);
}

/* ---------- 9. 显现与计数 ---------- */
.js-ready [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .42s var(--ease), transform .42s var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}
.js-ready [data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------- 10. 动效与无障碍 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .js-ready [data-reveal] { opacity: 1; transform: none; }
  .footer-link:hover, .btn--primary:hover { transform: none; }
}