/* ==========================================================================
   乐动体育 · 共享样式 /assets/site.css
   夜空深蓝底 + 草原青绿骨架 + 荧光橙强调 + 精密网格
   ========================================================================== */

:root{
  --ink:#0A1826;
  --ink-2:#10263A;
  --jade:#1F7A6A;
  --jade-2:#43A793;
  --flare:#FF6B1A;
  --gold:#C8A24A;
  --mist:#F1F4F3;
  --graphite:#8598A6;
  --grid:#17364A;
  --panel:#0E2A2A;
  --warm:#FFF3E8;

  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-cond:"Arial Narrow","Helvetica Neue Condensed","Roboto Condensed","Noto Sans SC",var(--font-sans);
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono","Courier New",monospace;

  --unit:64px;
  --gutter:clamp(18px,4.5vw,64px);
  --max:1440px;
  --pill:999px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:120px;
}

body{
  margin:0;
  background:var(--ink);
  color:var(--mist);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.012em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}

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

h1,h2,h3,h4{margin:0;font-weight:900;line-height:1.08;letter-spacing:-.018em}
h1{font-size:clamp(2.3rem,6.6vw,5rem)}
h2{font-size:clamp(1.7rem,3.6vw,2.9rem)}
h3{font-size:clamp(1.1rem,1.9vw,1.55rem)}
h4{font-size:1rem;letter-spacing:.02em}

p{margin:0 0 1.05em}
p:last-child{margin-bottom:0}

a{color:inherit}

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

hr{border:0;border-top:1px solid rgba(67,167,147,.2);margin:0}

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

#main-content{scroll-margin-top:120px}

/* ---------- 跳转链接 ---------- */
.skip-link{
  position:fixed;
  top:12px;
  left:12px;
  z-index:200;
  transform:translateY(-180%);
  background:var(--flare);
  color:var(--warm);
  padding:10px 18px;
  font-size:14px;
  font-weight:700;
  letter-spacing:.05em;
  text-decoration:none;
  border-radius:2px;
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ---------- 通用容器 ---------- */
.container{
  width:100%;
  max-width:var(--max);
  margin:0 auto;
  padding:0 var(--gutter);
}

.section{
  position:relative;
  padding:var(--unit) 0;
}
.section--tall{padding:clamp(64px,10vw,160px) 0}
.section--panel{background:var(--ink-2)}

.rule{
  height:1px;
  width:100%;
  background:rgba(67,167,147,.22);
  border:0;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--jade-2);
}
.eyebrow::before{
  content:"";
  display:block;
  width:22px;
  height:1px;
  background:var(--jade-2);
}

.lede{
  max-width:38em;
  font-size:clamp(1rem,1.35vw,1.15rem);
  color:rgba(241,244,243,.82);
  line-height:1.85;
}

.prose{max-width:38em}
.prose p{color:rgba(241,244,243,.86)}
.prose h2,.prose h3{margin:1.8em 0 .5em}
.prose h2:first-child,.prose h3:first-child{margin-top:0}
.prose ul{list-style:none;margin:0 0 1.1em}
.prose ul li{position:relative;padding-left:18px}
.prose ul li::before{
  content:"";
  position:absolute;
  left:0;top:.78em;
  width:8px;height:1px;
  background:var(--jade-2);
}
.prose a{color:var(--jade-2);text-decoration:underline;text-underline-offset:3px}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 10px;
  border:1px solid rgba(67,167,147,.35);
  border-radius:2px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--jade-2);
  background:rgba(31,122,106,.1);
  white-space:nowrap;
}
.tag--flare{border-color:rgba(255,107,26,.45);color:var(--flare);background:rgba(255,107,26,.1)}
.tag--gold{border-color:rgba(200,162,74,.45);color:var(--gold);background:rgba(200,162,74,.08)}

/* ---------- 数据块 ---------- */
.stat{
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:4px;
  text-align:right;
}
.stat__value{
  font-family:var(--font-cond);
  font-size:clamp(1.9rem,4.6vw,3.4rem);
  font-weight:900;
  font-stretch:condensed;
  line-height:1;
  letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
  color:var(--mist);
}
.stat__label{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--graphite);
}
.stat--accent .stat__value{color:var(--flare)}
.stat--jade .stat__value{color:var(--jade-2)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:42px;
  padding:0 22px;
  border:1px solid transparent;
  border-radius:2px;
  font-family:var(--font-sans);
  font-size:14px;
  font-weight:700;
  letter-spacing:.06em;
  line-height:1;
  text-decoration:none;
  cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn--flare{background:var(--flare);color:var(--warm)}
.btn--flare:hover{background:#ff8342}
.btn--ghost{background:transparent;color:var(--jade-2);border-color:rgba(67,167,147,.45)}
.btn--ghost:hover{color:var(--mist);border-color:var(--jade-2);background:rgba(31,122,106,.2)}
.btn--gold{background:transparent;color:var(--gold);border-color:rgba(200,162,74,.5)}
.btn--gold:hover{background:rgba(200,162,74,.12)}

/* ---------- 面包屑 ---------- */
.breadcrumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--graphite);
}
.breadcrumbs__item{display:inline-flex;align-items:center;gap:8px}
.breadcrumbs__item + .breadcrumbs__item::before{
  content:"/";
  color:rgba(133,152,166,.55);
}
.breadcrumbs__item a{color:var(--graphite);text-decoration:none}
.breadcrumbs__item a:hover{color:var(--jade-2)}
.breadcrumbs__item[aria-current="page"]{color:var(--mist)}

/* ---------- 图片容器 ---------- */
.media-frame{
  position:relative;
  display:block;
  width:100%;
  overflow:hidden;
  background:var(--ink-2);
  border:1px solid rgba(67,167,147,.18);
  border-radius:0;
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(23,54,74,.55) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(23,54,74,.55) 1px,transparent 1px);
  background-size:48px 48px;
  opacity:.6;
}
.media-frame > img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  display:block;
}
.media-frame--wide > img{aspect-ratio:21/9}
.media-frame--tall > img{aspect-ratio:3/4}
.media-frame__caption{
  display:block;
  padding:10px 0 0;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--graphite);
}

/* ==========================================================================
   头部
   ========================================================================== */
.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:90;
  padding:calc(env(safe-area-inset-top,0px) + 16px) var(--gutter) 0;
  background:linear-gradient(to bottom,rgba(10,24,38,.94) 0%,rgba(10,24,38,.55) 58%,rgba(10,24,38,0) 100%);
  transition:padding .28s var(--ease);
}
.site-header[data-scrolled]{
  padding-top:calc(env(safe-area-inset-top,0px) + 10px);
}

.scroll-progress{
  position:fixed;
  top:0;
  left:0;
  right:0;
  height:2px;
  z-index:95;
  background:rgba(23,54,74,.8);
}
.scroll-progress__bar{
  display:block;
  width:0;
  height:100%;
  background:linear-gradient(90deg,var(--jade-2) 0%,var(--jade) 55%,var(--flare) 100%);
}

.header-shell{
  position:relative;
  max-width:var(--max);
  margin:0 auto;
}

.header-capsule{
  position:relative;
  display:flex;
  align-items:center;
  gap:clamp(12px,2.4vw,32px);
  padding:10px 12px 10px 18px;
  border:1px solid rgba(67,167,147,.22);
  border-radius:var(--pill);
  background:rgba(16,38,58,.72);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  transition:padding .28s var(--ease),background-color .28s var(--ease),border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header[data-scrolled] .header-capsule{
  padding:6px 10px 6px 16px;
  background:rgba(16,38,58,.92);
  border-color:rgba(67,167,147,.38);
  box-shadow:0 20px 44px -28px rgba(0,0,0,.95);
}

/* 品牌 */
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
  padding:4px 4px 4px 0;
  text-decoration:none;
  color:inherit;
}
.brand-mark{
  display:grid;
  grid-template-columns:repeat(2,6px);
  grid-template-rows:repeat(2,6px);
  gap:2px;
  flex:0 0 auto;
}
.brand-mark i{display:block;background:var(--jade-2)}
.brand-mark i:nth-child(1){background:var(--gold)}
.brand-mark i:nth-child(2){background:var(--jade)}
.brand-mark i:nth-child(3){background:var(--flare)}
.brand-mark i:nth-child(4){background:var(--grid)}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{
  font-size:15px;
  font-weight:900;
  letter-spacing:.08em;
  color:var(--mist);
}
.brand-sub{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.08em;
  color:var(--graphite);
  white-space:nowrap;
}

/* 导航 */
.primary-nav{flex:0 0 auto}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 13px;
  border-radius:var(--pill);
  font-size:14px;
  font-weight:600;
  letter-spacing:.05em;
  color:var(--graphite);
  text-decoration:none;
  white-space:nowrap;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-link:hover{color:var(--mist);background:rgba(67,167,147,.14)}
.nav-link[aria-current="page"]{color:var(--mist)}
.nav-link[aria-current="page"]::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:3px;
  width:16px;
  height:2px;
  margin-left:-8px;
  background:var(--flare);
}

/* 头部动作区 */
.header-actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  margin-left:auto;
}
.header-cta{min-height:40px;padding:0 18px}

/* 汉堡按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  padding:0;
  border:1px solid rgba(67,167,147,.34);
  border-radius:var(--pill);
  background:transparent;
  color:var(--mist);
  cursor:pointer;
  transition:border-color .2s var(--ease),background-color .2s var(--ease);
}
.nav-toggle:hover{border-color:var(--jade-2);background:rgba(31,122,106,.2)}
.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after{
  display:block;
  width:18px;
  height:1.5px;
  background:currentColor;
  transition:transform .24s var(--ease),opacity .2s var(--ease),background-color .2s var(--ease);
}
.nav-toggle__bars{position:relative}
.nav-toggle__bars::before{content:"";position:absolute;top:-6px;left:0}
.nav-toggle__bars::after{content:"";position:absolute;top:6px;left:0}
.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)}

/* ==========================================================================
   页脚
   ========================================================================== */
.site-footer{
  position:relative;
  margin-top:clamp(64px,9vw,140px);
  background:var(--ink-2);
  border-top:1px solid rgba(67,167,147,.2);
  color:var(--mist);
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  opacity:.5;
  background-image:
    linear-gradient(to right,rgba(23,54,74,.5) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(23,54,74,.5) 1px,transparent 1px);
  background-size:64px 64px;
}
.site-footer::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:38%;
  max-width:520px;
  height:1px;
  background:linear-gradient(90deg,var(--jade-2),rgba(67,167,147,0));
  pointer-events:none;
}
.footer-shell{
  position:relative;
  z-index:1;
  max-width:var(--max);
  margin:0 auto;
  padding:clamp(48px,7vw,96px) var(--gutter) 32px;
}

.footer-top{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,2fr);
  gap:clamp(32px,5vw,80px);
}

.footer-brand{display:flex;flex-direction:column;align-items:flex-start;gap:14px}
.footer-eyebrow{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--jade-2);
}
.footer-title{
  margin:0;
  font-size:clamp(1.3rem,2.2vw,1.75rem);
  font-weight:900;
  line-height:1.25;
  letter-spacing:-.01em;
}
.footer-desc{
  margin:0;
  max-width:34em;
  font-size:14.5px;
  line-height:1.8;
  color:rgba(241,244,243,.7);
}
.footer-brand .btn{margin-top:6px}

.footer-nav{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(20px,3.5vw,48px);
}
.footer-col__title{
  margin:0 0 16px;
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:600;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--gold);
}
.footer-list{display:grid;gap:10px}
.footer-link{
  display:inline-block;
  font-size:14.5px;
  color:rgba(241,244,243,.78);
  text-decoration:none;
  border-bottom:1px solid transparent;
  padding-bottom:1px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.footer-link:hover{color:var(--flare);border-bottom-color:rgba(255,107,26,.6)}

.footer-contact{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:18px 32px;
  margin-top:clamp(36px,5vw,64px);
  padding-top:clamp(24px,3vw,36px);
  border-top:1px solid rgba(67,167,147,.18);
}
.footer-contact__item{
  display:flex;
  flex-direction:column;
  gap:4px;
  margin:0;
}
.footer-contact__label{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--graphite);
}
.footer-contact__value{
  font-size:14.5px;
  line-height:1.7;
  color:rgba(241,244,243,.88);
}

.footer-base{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px 28px;
  margin-top:clamp(28px,4vw,48px);
  padding-top:20px;
  border-top:1px solid rgba(67,167,147,.18);
}
.footer-base__meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 18px;
  font-size:13px;
  color:var(--graphite);
}
.footer-copy{letter-spacing:.04em}
.footer-icp{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--gold);
}
.footer-legal{display:flex;flex-wrap:wrap;gap:8px 20px}
.footer-legal .footer-link{font-size:13px;color:var(--graphite)}
.footer-legal .footer-link:hover{color:var(--flare)}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width:1279px){
  .brand-sub{display:none}
}

@media (max-width:1023px){
  .nav-toggle{display:inline-flex}
  .header-capsule{padding:8px 8px 8px 16px}

  .primary-nav{
    position:absolute;
    top:calc(100% + 12px);
    left:0;
    right:0;
    z-index:5;
    padding:12px;
    border:1px solid rgba(67,167,147,.3);
    border-radius:22px;
    background:rgba(10,24,38,.97);
    -webkit-backdrop-filter:blur(16px);
    backdrop-filter:blur(16px);
    box-shadow:0 30px 60px -34px rgba(0,0,0,.95);
    max-height:min(70vh,560px);
    overflow-y:auto;
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    transform:translateY(-10px);
    transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s linear;
  }
  .site-header[data-open] .primary-nav{
    opacity:1;
    visibility:visible;
    pointer-events:auto;
    transform:translateY(0);
  }
  .nav-list{display:grid;gap:2px}
  .nav-link{
    height:48px;
    width:100%;
    border-radius:10px;
    font-size:15px;
    padding:0 16px;
  }
  .nav-link[aria-current="page"]{background:rgba(31,122,106,.22)}
  .nav-link[aria-current="page"]::after{
    left:16px;
    margin-left:0;
    bottom:auto;
    top:50%;
    width:3px;
    height:18px;
    margin-top:-9px;
  }

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

@media (max-width:767px){
  .header-cta{display:none}
  .brand-name{font-size:14px;letter-spacing:.06em}

  .footer-nav{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
  .footer-base{flex-direction:column;align-items:flex-start}
  .footer-contact{grid-template-columns:minmax(0,1fr)}

  .stat{align-items:flex-start;text-align:left}
}

@media (max-width:479px){
  .footer-nav{grid-template-columns:minmax(0,1fr)}
  .footer-legal{gap:8px 16px}
}

/* ==========================================================================
   动效偏好
   ========================================================================== */
@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;
  }
  .scroll-progress__bar{transition:none !important}
}