/* =========================================================
   非凡体育入口 · Site Kit 共享样式
   /assets/site.css
   ========================================================= */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-behavior:smooth}
body,h1,h2,h3,h4,h5,p,ul,ol,li,figure,blockquote,dl,dd,hr{margin:0}
ul,ol{list-style:none;padding:0}
img,svg,canvas{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
hr{border:0;height:1px;background:var(--line)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}
::selection{background:var(--lime);color:#071C16}

/* ---------- 2. 设计变量 ---------- */
:root{
  --ink:#071C16;
  --ink-2:#0E2B22;
  --ink-3:#0A241C;
  --graphite:#2A3B36;
  --silver:#C7D2CC;
  --paper:#F2F7F3;
  --mint:#D9FFE9;
  --lime:#B6FF3B;
  --cyan:#2FF3D0;
  --flame:#FF5A2A;
  --red:#FF3D3D;
  --line:rgba(199,210,204,.16);
  --line-strong:rgba(199,210,204,.36);
  --header-h:84px;
  --r-lg:28px;
  --r-md:18px;
  --r-pill:999px;
  --sans:"PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",sans-serif;
  --mono:"DIN Alternate",ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono","Courier New",monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
}
@media (max-width:1060px){
  :root{--header-h:68px}
}

/* ---------- 3. 基础排版与页面底色 ---------- */
body{
  min-height:100vh;
  display:flex;
  flex-direction:column;
  background-color:var(--ink);
  background-image:
    radial-gradient(rgba(199,210,204,.055) 1px, transparent 1.2px),
    radial-gradient(1100px 620px at 88% -10%, rgba(47,243,208,.10), transparent 62%),
    radial-gradient(820px 520px at 2% 2%, rgba(182,255,59,.07), transparent 60%);
  background-size:48px 48px, auto, auto;
  background-repeat:repeat, no-repeat, no-repeat;
  color:var(--paper);
  font-family:var(--sans);
  font-size:16px;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
#main-content{flex:1 0 auto;padding-top:var(--header-h);scroll-margin-top:calc(var(--header-h) + 12px)}
body[data-nav-lock]{overflow:hidden}

/* ---------- 4. 容器与通用排版元件 ---------- */
.wrap{
  width:100%;
  max-width:1240px;
  margin-inline:auto;
  padding-inline:clamp(18px,4vw,40px);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.26em;
  line-height:1.4;
  color:var(--cyan);
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--lime)}
.display-xl{
  font-size:clamp(42px,8vw,102px);
  line-height:.94;
  font-weight:800;
  letter-spacing:-.035em;
  color:var(--paper);
}
.display-l{
  font-size:clamp(28px,4.4vw,52px);
  line-height:1.08;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--paper);
}
.lead{
  font-size:clamp(15px,1.6vw,18px);
  line-height:1.85;
  color:rgba(242,247,243,.78);
  max-width:62ch;
}
.num{
  font-family:var(--mono);
  font-variant-numeric:tabular-nums;
  font-weight:700;
  letter-spacing:-.01em;
  line-height:.92;
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-strong);
  background:rgba(199,210,204,.05);
  color:var(--silver);
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.14em;
  line-height:1.5;
}
.tag--lime{background:var(--lime);border-color:transparent;color:#0A241C}
.tag--flame{background:var(--flame);border-color:transparent;color:#200A02}
.tag--cyan{background:var(--cyan);border-color:transparent;color:#052B25}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5em;
  padding:13px 22px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:15px;
  font-weight:700;
  line-height:1;
  letter-spacing:.04em;
  cursor:pointer;
  transition:transform .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.btn--lime{background:var(--lime);color:#071C16;box-shadow:0 14px 30px -18px rgba(182,255,59,.9)}
.btn--lime:hover{background:#c9ff6a;transform:translateY(-1px)}
.btn--flame{background:var(--flame);color:#160703;box-shadow:0 14px 30px -18px rgba(255,90,42,.9)}
.btn--flame:hover{background:#ff7449;transform:translateY(-1px)}
.btn--ghost{border-color:var(--line-strong);background:rgba(199,210,204,.04);color:var(--paper)}
.btn--ghost:hover{background:rgba(199,210,204,.12);border-color:var(--silver)}
.btn--sm{padding:10px 16px;font-size:13px}

/* 面包屑 */
.crumb{font-size:12px;letter-spacing:.1em}
.crumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:10px;color:rgba(199,210,204,.72)}
.crumb-list li{display:inline-flex;align-items:center;gap:10px}
.crumb-list li + li::before{content:"/";color:rgba(199,210,204,.32)}
.crumb-link{color:var(--cyan);border-bottom:1px solid transparent;transition:border-color .2s var(--ease)}
.crumb-link:hover{border-bottom-color:var(--cyan)}
.crumb [aria-current="page"]{color:var(--paper)}

/* 面板与分栏骨架 */
.panel{
  background:linear-gradient(160deg,rgba(14,43,34,.94),rgba(10,36,28,.74));
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:clamp(20px,3vw,32px);
}
.panel--paper{
  background:var(--paper);
  border-color:rgba(7,28,22,.12);
  color:#0B2018;
}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px 32px;
  margin-bottom:clamp(20px,3vw,34px);
  padding-bottom:14px;
  border-bottom:1px solid var(--line);
}
.divider-line{height:1px;background:var(--line);border:0;margin-block:clamp(28px,4vw,52px)}
.rail-grid{
  display:grid;
  grid-template-columns:minmax(0,3fr) minmax(0,9fr);
  gap:clamp(20px,3vw,44px);
  align-items:start;
}

/* 纸白正文区 */
.prose{
  background:var(--paper);
  color:#0B2018;
  border-radius:var(--r-lg);
  padding:clamp(24px,4vw,56px);
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
}
.prose > h2{
  font-size:clamp(20px,2.4vw,26px);
  line-height:1.32;
  font-weight:800;
  letter-spacing:-.01em;
  color:#071C16;
  margin:1.9em 0 .6em;
}
.prose > h2:first-child{margin-top:0}
.prose > h3{
  font-size:17px;
  font-weight:700;
  color:#0B2018;
  margin:1.5em 0 .5em;
}
.prose p{margin-bottom:1em;max-width:68ch}
.prose ul,.prose ol{list-style:disc;margin:0 0 1em;padding-left:1.3em}
.prose ol{list-style:decimal}
.prose li + li{margin-top:.4em}
.prose a{color:#0B6B4F;border-bottom:1px solid rgba(11,107,79,.35)}
.prose a:hover{border-bottom-color:#0B6B4F}
.prose strong{font-weight:800}
.prose hr{background:rgba(7,28,22,.14);margin-block:2em}

/* 图片容器基础规则 */
.media-frame{
  position:relative;
  overflow:hidden;
  isolation:isolate;
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  background:linear-gradient(140deg,#0E2B22,#0A241C 55%,#123528);
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(120% 90% at 78% 4%, rgba(47,243,208,.22), transparent 58%),
    radial-gradient(80% 70% at 6% 96%, rgba(182,255,59,.16), transparent 62%);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame--wide{aspect-ratio:16/9}
.media-frame--band{aspect-ratio:3/1}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--square{aspect-ratio:1/1}

/* ---------- 5. 页头 ---------- */
.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:100;
  background:transparent;
  color:var(--paper);
  isolation:isolate;
  transition:background .4s var(--ease),box-shadow .4s var(--ease);
}
.site-header[data-scrolled]{
  background:rgba(7,28,22,.94);
  box-shadow:0 1px 0 var(--line),0 24px 48px -32px rgba(0,0,0,.95);
  -webkit-backdrop-filter:blur(16px) saturate(1.1);
  backdrop-filter:blur(16px) saturate(1.1);
}
.hdr-inner{
  position:relative;
  min-height:var(--header-h);
  display:flex;
  align-items:center;
  gap:clamp(14px,2vw,28px);
  transition:min-height .4s var(--ease);
}
.site-header[data-scrolled] .hdr-inner{min-height:66px}

/* 品牌 */
.brand{display:inline-flex;align-items:center;gap:12px;flex:none;padding-block:8px}
.brand-mark{
  display:grid;
  grid-auto-flow:column;
  align-items:end;
  justify-content:center;
  gap:3px;
  width:38px;
  height:38px;
  padding:8px;
  border-radius:12px;
  background:linear-gradient(155deg,var(--lime),#8AE832 55%,var(--cyan));
  box-shadow:0 0 0 1px rgba(182,255,59,.32),0 12px 26px -14px rgba(182,255,59,.8);
}
.brand-mark i{display:block;width:4px;border-radius:2px;background:var(--ink)}
.brand-mark i:nth-child(1){height:8px}
.brand-mark i:nth-child(2){height:14px}
.brand-mark i:nth-child(3){height:20px}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-line{font-size:17px;font-weight:800;letter-spacing:.02em;color:var(--paper)}
.brand-desc{margin-top:4px;font-size:10.5px;font-weight:600;letter-spacing:.18em;color:rgba(199,210,204,.8)}

/* 导航 */
.site-nav{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:clamp(2px,.8vw,10px)}
.nav-item{display:block}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:7px;
  padding:9px 12px;
  border-radius:var(--r-pill);
  font-size:13.5px;
  font-weight:600;
  letter-spacing:.04em;
  color:rgba(242,247,243,.78);
  transition:color .25s var(--ease),background .25s var(--ease);
}
.nav-link:hover{color:var(--paper);background:rgba(199,210,204,.12)}
.nav-num{font-family:var(--mono);font-size:10px;letter-spacing:.1em;color:var(--cyan);opacity:.82}
.nav-label{display:inline-block}
.nav-link[aria-current="page"]{background:var(--lime);color:var(--ink)}
.nav-link[aria-current="page"] .nav-num{color:rgba(7,28,22,.62)}

/* 头部行动区与移动按钮 */
.hdr-actions{display:flex;align-items:center;gap:10px;flex:none}
.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  margin-left:8px;
  padding:11px 15px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-strong);
  color:var(--paper);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.1em;
  transition:background .25s var(--ease),border-color .25s var(--ease);
}
.nav-toggle:hover{border-color:var(--lime);background:rgba(182,255,59,.08)}
.nav-toggle-box{display:grid;gap:4px;width:18px}
.nav-toggle-box i{display:block;height:2px;border-radius:2px;background:var(--lime);transition:transform .28s var(--ease)}
.site-header[data-open] .nav-toggle-box i:nth-child(1){transform:translateY(3px) rotate(45deg)}
.site-header[data-open] .nav-toggle-box i:nth-child(2){transform:translateY(-3px) rotate(-45deg)}
.nav-toggle-text{white-space:nowrap}

/* 阅读进度线 */
.hdr-meter{position:absolute;left:0;right:0;bottom:0;height:2px;overflow:hidden;pointer-events:none}
.hdr-meter i{
  display:block;
  width:100%;
  height:100%;
  transform:scaleX(0);
  transform-origin:0 50%;
  background:linear-gradient(90deg,var(--lime),var(--cyan) 62%,var(--flame));
  opacity:.95;
  transition:transform .14s linear;
}

/* 跳转链接 */
.skip-link{
  position:fixed;
  top:10px;
  left:50%;
  z-index:200;
  padding:12px 22px;
  border-radius:var(--r-pill);
  background:var(--lime);
  color:#071C16;
  font-size:14px;
  font-weight:800;
  letter-spacing:.04em;
  transform:translate(-50%,-180%);
  transition:transform .24s var(--ease);
}
.skip-link:focus,.skip-link:focus-visible{transform:translate(-50%,0)}

/* ---------- 6. 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:clamp(40px,6vw,86px);
  padding:clamp(44px,6vw,76px) 0 24px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(14,43,34,.62) 0%,#05170F 66%,#04120B 100%);
  color:var(--silver);
  font-size:14.5px;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;
  left:clamp(18px,4vw,40px);
  width:min(46%,380px);
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--lime),var(--cyan) 62%,transparent);
}
.ft-head{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);
  gap:clamp(14px,3vw,44px);
  align-items:start;
}
.ft-brand{
  font-size:clamp(17px,2.2vw,23px);
  font-weight:800;
  line-height:1.42;
  letter-spacing:.01em;
  color:var(--paper);
}
.ft-note{
  font-size:13.5px;
  line-height:1.85;
  color:rgba(199,210,204,.76);
  max-width:56ch;
}
.ft-body{
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,1fr) minmax(0,.9fr);
  gap:clamp(22px,4vw,52px);
  margin-top:clamp(28px,4vw,44px);
  padding-top:clamp(24px,3vw,34px);
  border-top:1px solid var(--line);
}
.ft-block{min-width:0}
.ft-title{
  margin-bottom:14px;
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.24em;
  color:var(--lime);
  text-transform:uppercase;
}
.ft-contact li{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:6px 12px;
  padding-block:9px;
  border-bottom:1px dashed rgba(199,210,204,.14);
}
.ft-contact li:last-child{border-bottom:0}
.ft-key{
  min-width:3.2em;
  font-size:11px;
  letter-spacing:.16em;
  color:rgba(199,210,204,.62);
}
.ft-val{
  flex:1 1 12ch;
  min-width:0;
  font-size:14.5px;
  line-height:1.6;
  color:var(--paper);
  overflow-wrap:anywhere;
}
.ft-val--mono{font-family:var(--mono);font-size:15.5px;letter-spacing:.03em;color:var(--lime)}
.ft-copybtn{
  margin-left:auto;
  padding:4px 11px;
  border-radius:var(--r-pill);
  border:1px solid var(--line-strong);
  color:var(--silver);
  font-size:11px;
  font-weight:700;
  letter-spacing:.12em;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.ft-copybtn:hover{border-color:var(--lime);color:var(--lime);background:rgba(182,255,59,.08)}
.ft-copybtn[data-copied="true"]{border-color:var(--lime);background:var(--lime);color:#071C16}
.ft-feedback{min-height:1.3em;margin-top:10px;font-size:12.5px;letter-spacing:.04em;color:var(--lime)}
.ft-links li + li{margin-top:2px}
.ft-links a{
  display:inline-flex;
  align-items:center;
  gap:9px;
  padding:7px 0;
  font-size:14.5px;
  color:rgba(199,210,204,.88);
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.ft-links a::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:2px;
  background:var(--graphite);
  transition:background .2s var(--ease);
}
.ft-links a:hover{color:var(--paper);transform:translateX(3px)}
.ft-links a:hover::before{background:var(--lime)}
.ft-foot{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px 24px;
  margin-top:clamp(28px,4vw,44px);
  padding-top:18px;
  border-top:1px solid var(--line);
  font-size:12.5px;
  letter-spacing:.08em;
  color:rgba(199,210,204,.72);
}
.ft-copy-line{line-height:1.6}
.ft-icp{font-family:var(--mono);letter-spacing:.1em}

/* ---------- 7. 滚动显现 ---------- */
html[data-js="on"] [data-reveal]{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .6s var(--ease),transform .6s var(--ease);
}
html[data-js="on"] [data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 8. 响应式 ---------- */
@media (max-width:1060px){
  .nav-toggle{display:inline-flex}
  .site-nav{
    position:fixed;
    left:0;
    right:0;
    top:var(--header-h);
    margin-left:0;
    display:block;
    max-height:calc(100dvh - var(--header-h));
    overflow-y:auto;
    padding:16px clamp(18px,5vw,40px) 28px;
    background:linear-gradient(180deg,rgba(14,43,34,.99),rgba(7,28,22,.99));
    border-bottom:1px solid var(--line);
    box-shadow:0 40px 70px -40px #000;
    visibility:hidden;
    opacity:0;
    transform:translateY(-12px);
    pointer-events:none;
    transition:opacity .28s var(--ease),transform .28s var(--ease),visibility .28s var(--ease);
  }
  .site-header[data-open] .site-nav{
    visibility:visible;
    opacity:1;
    transform:none;
    pointer-events:auto;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-item + .nav-item{border-top:1px solid var(--line)}
  .nav-link{
    width:100%;
    justify-content:flex-start;
    gap:14px;
    padding:16px 4px;
    border-radius:0;
    font-size:17px;
  }
  .nav-link:hover{background:transparent;color:var(--lime)}
  .nav-link[aria-current="page"]{background:transparent;color:var(--lime)}
  .nav-link[aria-current="page"] .nav-num{color:var(--cyan)}
  .nav-link[aria-current="page"]::after{
    content:"当前";
    margin-left:auto;
    font-size:11px;
    font-weight:700;
    letter-spacing:.16em;
    color:rgba(182,255,59,.72);
  }
  .hdr-actions{margin-left:auto}
  .rail-grid{grid-template-columns:1fr}
  .ft-head{grid-template-columns:1fr}
  .ft-body{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .prose{padding:clamp(20px,5vw,32px);border-radius:22px}
  .panel{border-radius:22px}
  .media-frame{border-radius:22px}
  .ft-body{grid-template-columns:1fr;gap:26px}
  .ft-foot{justify-content:flex-start}
}
@media (max-width:600px){
  .brand-desc{display:none}
  .brand-line{font-size:15.5px}
  .hdr-cta{padding:9px 13px;font-size:12.5px;letter-spacing:.02em}
  .nav-toggle-text{display:none}
  .nav-toggle{padding:11px}
  .ft-val--mono{font-size:14.5px}
}
@media (max-width:400px){
  .hdr-actions{display:none}
}

/* ---------- 9. 无障碍与减少动态 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
  html[data-js="on"] [data-reveal]{opacity:1;transform:none}
}