/* ==========================================================================
   云体育 · 数据裁决所 — 全站共享样式 /assets/site.css
   ========================================================================== */

/* 0. 设计令牌 ------------------------------------------------------------- */
:root{
  --ink:#060B18;
  --ink-deep:#040711;
  --cloud:#0E1830;
  --grid:#24314F;
  --paper:#F3F5F9;
  --black:#0A0C12;
  --cyan:#3FE8C8;
  --violet:#7A5CFF;
  --amber:#E8A33D;
  --amber-ink:#8A5D10;
  --alert:#FF6B5A;
  --muted:#8A93A8;
  --line:rgba(36,49,79,.72);

  --font-sans:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  --font-display:var(--font-sans);
  --font-mono:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,"Courier New",monospace;
  --font-serif:"Songti SC","SimSun","Source Han Serif SC","Noto Serif CJK SC",Georgia,"Times New Roman",serif;

  --shell:min(1240px,94vw);
  --pad-section:clamp(56px,9vw,128px);
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* 1. 重置与基础 ----------------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink);
  color:var(--paper);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.005em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg,video{display:block;max-width:100%;height:auto;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p,figure,blockquote{margin:0;}
[hidden]{display:none !important;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;}
::selection{background:var(--violet);color:#fff;}

/* 2. 排版 ----------------------------------------------------------------- */
h1{font-family:var(--font-display);font-weight:250;line-height:1.02;letter-spacing:.02em;}
h2,h3,h4{font-weight:850;line-height:1.14;letter-spacing:-.01em;}

.sec-head{margin-bottom:clamp(24px,4vw,44px);}
.sec-title{
  font-family:var(--font-sans);
  font-weight:880;
  font-size:clamp(28px,4vw,44px);
  line-height:1.06;
  letter-spacing:-.015em;
  color:var(--paper);
}
.sec-lead{max-width:34em;margin-top:16px;color:var(--muted);font-size:17px;line-height:1.9;}

.idx{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--muted);
}
.idx::before{content:"";width:26px;height:1px;background:var(--grid);flex:none;}
.idx-num{color:var(--cyan);}

.data-num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(26px,4vw,56px);
  line-height:1;letter-spacing:-.02em;color:var(--paper);
}

.ruling{font-family:var(--font-serif);font-size:17px;line-height:1.9;letter-spacing:.01em;}

/* 3. 容器与栅格 ----------------------------------------------------------- */
.shell{width:var(--shell);margin-inline:auto;}
.prose{max-width:34em;font-size:17px;line-height:1.9;color:var(--paper);}
.prose p+p{margin-top:1.2em;}
.prose a{color:var(--cyan);border-bottom:1px solid rgba(63,232,200,.35);}
.prose--light{color:var(--black);}
.rule-line{height:1px;background:var(--grid);border:0;margin:0;}

.grid{display:grid;gap:clamp(20px,3vw,40px);}
.grid--12{grid-template-columns:repeat(12,minmax(0,1fr));}
.col-3{grid-column:span 3;}
.col-4{grid-column:span 4;}
.col-5{grid-column:span 5;}
.col-6{grid-column:span 6;}
.col-7{grid-column:span 7;}
.col-8{grid-column:span 8;}
.col-12{grid-column:1 / -1;}
@media (max-width:1024px){
  .grid--12{grid-template-columns:repeat(6,minmax(0,1fr));}
  .col-3,.col-4{grid-column:span 3;}
  .col-5,.col-6,.col-7,.col-8{grid-column:span 6;}
}
@media (max-width:700px){
  .grid--12{grid-template-columns:minmax(0,1fr);}
  .col-3,.col-4,.col-5,.col-6,.col-7,.col-8,.col-12{grid-column:1 / -1;}
}

/* 4. 通用按钮与面包屑 ----------------------------------------------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:13px 26px;border:1px solid var(--grid);background:transparent;color:var(--paper);
  font-size:15px;letter-spacing:.06em;cursor:pointer;
  transition:background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.btn--primary{background:var(--violet);border-color:var(--violet);color:#fff;}
.btn--primary:hover{background:#8d76ff;border-color:#8d76ff;box-shadow:0 0 0 5px rgba(122,92,255,.16);}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan);}
.btn--amber{border-color:rgba(232,163,61,.6);color:var(--amber);}
.btn--amber:hover{background:rgba(232,163,61,.12);}

.breadcrumb{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted);
}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.breadcrumb li{display:inline-flex;align-items:center;gap:10px;}
.breadcrumb li+li::before{content:"/";color:var(--grid);}
.breadcrumb a{color:var(--muted);transition:color .3s var(--ease);}
.breadcrumb a:hover{color:var(--cyan);}

/* 5. 头部 ----------------------------------------------------------------- */
.site-header{position:relative;z-index:80;background:var(--ink);}

.header-rail{
  background:linear-gradient(90deg,var(--cloud),var(--ink) 62%);
  border-bottom:1px solid var(--grid);
}
.rail-inner{
  width:var(--shell);margin-inline:auto;
  display:flex;align-items:center;gap:16px;padding:9px 0;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--muted);
}
.rail-status{display:inline-flex;align-items:center;gap:8px;color:var(--cyan);}
.rail-pulse{
  width:7px;height:7px;border-radius:50%;background:var(--cyan);flex:none;
  animation:rail-pulse 2.6s ease-out infinite;
}
@keyframes rail-pulse{
  0%{box-shadow:0 0 0 0 rgba(63,232,200,.55);}
  70%{box-shadow:0 0 0 9px rgba(63,232,200,0);}
  100%{box-shadow:0 0 0 0 rgba(63,232,200,0);}
}
.rail-meta{margin-left:auto;}
.rail-link{color:var(--muted);border-bottom:1px solid transparent;transition:color .3s var(--ease),border-color .3s var(--ease);}
.rail-link:hover{color:var(--cyan);border-bottom-color:rgba(63,232,200,.5);}
@media (max-width:760px){
  .rail-meta{display:none;}
  .rail-inner{justify-content:space-between;}
}

.masthead{padding:clamp(22px,3.4vw,40px) 0 clamp(16px,2.6vw,26px);text-align:center;}
.brand{display:inline-flex;align-items:center;gap:clamp(12px,2vw,20px);}
.brand-mark{
  position:relative;flex:none;display:grid;place-items:center;
  width:clamp(46px,6vw,58px);height:clamp(46px,6vw,58px);
  border:1px solid var(--grid);
  background:linear-gradient(150deg,var(--cloud),var(--ink));
  color:var(--cyan);font-weight:300;font-size:clamp(22px,3vw,28px);line-height:1;
}
.brand-mark::after{content:"";position:absolute;inset:5px;border:1px solid rgba(63,232,200,.28);}
.brand-text{display:block;text-align:left;}
.brand-name{
  display:block;font-family:var(--font-display);font-weight:250;
  font-size:clamp(26px,4.4vw,42px);line-height:1;letter-spacing:.18em;color:var(--paper);
}
.brand-sub{
  display:block;margin-top:9px;font-family:var(--font-mono);font-size:11px;
  letter-spacing:.24em;text-transform:uppercase;color:var(--muted);
}
@media (max-width:560px){
  .brand{flex-direction:column;gap:12px;}
  .brand-text{text-align:center;}
}

.nav-band{
  position:sticky;top:0;z-index:90;
  background:rgba(6,11,24,.94);
  border-top:1px solid var(--grid);border-bottom:1px solid var(--grid);
  backdrop-filter:blur(10px);
}
.nav-inner{
  position:relative;width:var(--shell);margin-inline:auto;
  display:flex;align-items:center;justify-content:center;min-height:58px;
}
.nav-list{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:2px;}
.site-nav a{
  position:relative;display:inline-block;padding:9px 15px;
  font-size:15px;letter-spacing:.08em;color:rgba(243,245,249,.82);
  transition:color .28s var(--ease);
}
.site-nav a::after{
  content:"";position:absolute;left:15px;right:15px;bottom:2px;height:1px;
  background:var(--violet);transform:scaleX(0);transform-origin:left;
  transition:transform .32s var(--ease),background .28s var(--ease);
}
.site-nav a:hover{color:var(--paper);}
.site-nav a:hover::after{transform:scaleX(1);}
.site-nav a[aria-current="page"]{color:var(--cyan);}
.site-nav a[aria-current="page"]::after{transform:scaleX(1);background:var(--amber);}

.nav-toggle{
  display:none;position:absolute;left:0;top:50%;transform:translateY(-50%);
  align-items:center;gap:10px;padding:8px 12px;border:1px solid var(--grid);
  color:var(--paper);font-family:var(--font-mono);font-size:11px;
  letter-spacing:.14em;text-transform:uppercase;
  transition:border-color .3s var(--ease),color .3s var(--ease);
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan);}
.nav-toggle-bars{display:grid;gap:4px;}
.nav-toggle-bars i{display:block;width:16px;height:1px;background:currentColor;transition:transform .3s var(--ease);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:first-child{transform:translateY(2.5px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars i:last-child{transform:translateY(-2.5px) rotate(-45deg);}

.nav-cta{
  position:absolute;right:0;top:50%;transform:translateY(-50%);
  padding:9px 18px;background:var(--violet);border:1px solid var(--violet);
  color:#fff;font-size:13px;letter-spacing:.08em;white-space:nowrap;
  transition:background .3s var(--ease),box-shadow .3s var(--ease);
}
.nav-cta:hover{background:#8d76ff;box-shadow:0 0 0 5px rgba(122,92,255,.16);}

@media (max-width:900px){
  .nav-inner{min-height:54px;}
  .nav-toggle{display:inline-flex;}
  .site-nav{
    position:absolute;left:0;right:0;top:100%;display:none;
    background:var(--cloud);border-bottom:1px solid var(--grid);
    box-shadow:0 24px 40px -24px rgba(0,0,0,.9);
    max-height:min(70vh,560px);overflow-y:auto;
  }
  .site-nav[data-open]{display:block;}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;padding:8px 0 14px;}
  .site-nav a{padding:15px 6vw;font-size:17px;border-bottom:1px solid var(--line);}
  .site-nav a::after{display:none;}
  .site-nav a[aria-current="page"]{box-shadow:inset 3px 0 0 var(--amber);background:rgba(122,92,255,.10);}
  .nav-cta{padding:8px 13px;font-size:12px;}
}

/* 6. 页脚 ----------------------------------------------------------------- */
.site-footer{
  position:relative;
  background:linear-gradient(180deg,var(--ink) 0%,var(--ink-deep) 100%);
  border-top:1px solid var(--grid);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--violet) 52%,var(--amber));
  opacity:.85;
}
.footer-inner{
  width:var(--shell);margin-inline:auto;
  padding:clamp(48px,7vw,86px) 0 30px;
  display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  gap:clamp(30px,4vw,64px);
}
.footer-brand-name{
  font-family:var(--font-display);font-weight:250;
  font-size:clamp(26px,3vw,34px);line-height:1;letter-spacing:.2em;color:var(--paper);
}
.footer-brand-sub{
  margin-top:12px;font-family:var(--font-mono);font-size:11px;
  letter-spacing:.22em;text-transform:uppercase;color:var(--muted);
}
.footer-stamp{
  margin-top:22px;padding-left:12px;border-left:2px solid var(--amber);
  font-size:14px;line-height:1.8;color:var(--muted);max-width:30ch;
}
.stamp-num{
  display:block;font-family:var(--font-mono);font-size:11px;
  letter-spacing:.18em;text-transform:uppercase;color:var(--amber);
}
.footer-nav{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(20px,3vw,36px);}
.footer-col-title{
  font-family:var(--font-mono);font-weight:500;font-size:12px;
  letter-spacing:.18em;text-transform:uppercase;color:var(--cyan);margin-bottom:16px;
}
.footer-links li+li{margin-top:10px;}
.footer-links a{
  font-size:15px;color:rgba(243,245,249,.74);
  border-bottom:1px solid transparent;
  transition:color .3s var(--ease),border-color .3s var(--ease);
}
.footer-links a:hover{color:var(--paper);border-bottom-color:var(--violet);}

.footer-contact{
  grid-column:1 / -1;border-top:1px solid var(--grid);padding-top:28px;
  display:grid;grid-template-columns:minmax(0,3fr) minmax(0,9fr);
  gap:clamp(14px,3vw,40px);
}
.footer-contact-label{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--amber);
}
.footer-contact-line{
  font-family:var(--font-mono);font-size:14px;line-height:2;
  color:rgba(243,245,249,.86);word-break:break-word;
}
.footer-contact-note{margin-top:10px;font-size:13px;line-height:1.9;color:var(--muted);max-width:62ch;}

.footer-legal{
  grid-column:1 / -1;margin-top:26px;padding-top:20px;border-top:1px solid var(--grid);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted);
}
@media (max-width:900px){
  .footer-inner{grid-template-columns:minmax(0,1fr);}
  .footer-nav{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-contact{grid-template-columns:minmax(0,1fr);}
}
@media (max-width:520px){
  .footer-nav{grid-template-columns:minmax(0,1fr);}
  .footer-legal{flex-direction:column;}
}

/* 7. 跳过链接与滚动进度 --------------------------------------------------- */
.skip-link{
  position:absolute;left:16px;top:-70px;z-index:200;
  padding:10px 18px;background:var(--amber);color:var(--black);
  font-size:14px;letter-spacing:.04em;
  transition:top .24s var(--ease);
}
.skip-link:focus,.skip-link:focus-visible{top:12px;}

.scroll-progress{
  position:fixed;top:0;left:0;z-index:200;height:2px;width:0;
  background:linear-gradient(90deg,var(--cyan),var(--violet) 70%,var(--amber));
  transition:width .15s linear;pointer-events:none;
}

/* 8. 组件：纸张叠层卡 ----------------------------------------------------- */
.plate{
  position:relative;background:var(--cloud);border:1px solid var(--grid);
  padding:clamp(20px,3vw,32px);
  box-shadow:10px 10px 0 rgba(4,7,17,.65);
}
.plate::before{
  content:"";position:absolute;inset:7px;
  border:1px solid rgba(138,147,168,.14);pointer-events:none;
}
.plate-head{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:16px;}
.plate-title{font-size:19px;font-weight:800;letter-spacing:.01em;color:var(--paper);}
.plate--light{background:var(--paper);border-color:#d5dae5;color:var(--black);box-shadow:10px 10px 0 rgba(36,49,79,.22);}
.plate--light::before{border-color:rgba(10,12,18,.12);}
.plate--light .plate-title{color:var(--black);}
.plate--light .idx,.plate--light .idx-num{color:var(--amber-ink);}

/* 9. 组件：横带与横向数据流 ----------------------------------------------- */
.band{
  background:var(--cloud);
  border-top:1px solid var(--grid);border-bottom:1px solid var(--grid);
  padding:clamp(24px,4vw,46px) 0;
}
.band--scroll{overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;}
.band--scroll::-webkit-scrollbar{height:6px;}
.band--scroll::-webkit-scrollbar-thumb{background:var(--grid);}
.band-track{display:flex;gap:clamp(16px,2vw,24px);padding-inline:max(3vw,16px);}
.band-track > *{flex:0 0 min(340px,78vw);scroll-snap-align:start;min-width:0;}

/* 10. 组件：裁决聚焦卡 ---------------------------------------------------- */
.focus-card{
  position:relative;max-width:780px;margin-inline:auto;
  background:var(--paper);color:var(--black);border:1px solid #d5dae5;
  padding:clamp(30px,5vw,58px);text-align:center;
  box-shadow:0 34px 70px -34px rgba(0,0,0,.85);
}
.focus-card::before{
  content:"";position:absolute;inset:10px;
  border:1px solid rgba(232,163,61,.5);pointer-events:none;
}
.focus-card-num{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.26em;
  text-transform:uppercase;color:var(--amber-ink);
}
.focus-card-title{
  margin-top:14px;font-weight:880;font-size:clamp(22px,3.2vw,32px);
  line-height:1.16;letter-spacing:-.01em;color:var(--black);
}
.focus-card .ruling{max-width:32em;margin:18px auto 0;color:#1b1f28;text-align:left;}

/* 11. 组件：文献行与标签 -------------------------------------------------- */
.doc-list{border-top:1px solid var(--line);}
.doc-row{
  display:grid;grid-template-columns:70px minmax(0,1fr) auto;
  gap:clamp(14px,2.4vw,32px);align-items:start;
  padding:22px 12px;border-bottom:1px solid var(--line);
  transition:background .3s var(--ease);
}
.doc-row:hover{background:rgba(14,24,48,.62);}
.doc-row-num{font-family:var(--font-mono);font-size:12px;letter-spacing:.12em;color:var(--cyan);padding-top:4px;}
.doc-row-title{font-size:19px;font-weight:800;color:var(--paper);}
.doc-row-desc{margin-top:8px;max-width:46ch;color:var(--muted);font-size:15px;line-height:1.8;}
.doc-row-tags{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end;}
@media (max-width:760px){
  .doc-row{grid-template-columns:44px minmax(0,1fr);}
  .doc-row-tags{grid-column:2;justify-content:flex-start;}
}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border:1px solid var(--grid);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--muted);
}
.tag--cyan{border-color:rgba(63,232,200,.42);color:var(--cyan);}
.tag--violet{border-color:rgba(122,92,255,.48);color:#a99bff;}
.tag--amber{border-color:rgba(232,163,61,.5);color:var(--amber);}
.tag--alert{border-color:rgba(255,107,90,.5);color:var(--alert);}

/* 12. 组件：筛选栏 -------------------------------------------------------- */
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:clamp(22px,3.5vw,36px);}
.filter-btn{
  padding:9px 18px;border:1px solid var(--grid);background:transparent;
  color:var(--muted);font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;
  transition:background .3s var(--ease),color .3s var(--ease),border-color .3s var(--ease);
}
.filter-btn:hover{border-color:var(--cyan);color:var(--cyan);}
.filter-btn[aria-pressed="true"]{background:var(--violet);border-color:var(--violet);color:#fff;}

/* 13. 组件：图片容器 ------------------------------------------------------ */
.media-frame{
  position:relative;overflow:hidden;aspect-ratio:16 / 9;
  background:var(--cloud);border:1px solid var(--grid);
}
.media-frame img,.media-frame video{width:100%;height:100%;object-fit:cover;}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(6,11,24,0) 42%,rgba(6,11,24,.74) 100%);
}
.media-frame--grid::before{
  content:"";position:absolute;inset:0;z-index:1;pointer-events:none;opacity:.32;
  background-image:
    linear-gradient(var(--grid) 1px,transparent 1px),
    linear-gradient(90deg,var(--grid) 1px,transparent 1px);
  background-size:48px 48px;
}
.media-frame--tall{aspect-ratio:3 / 4;}
.media-frame--wide{aspect-ratio:21 / 9;}
.media-frame--square{aspect-ratio:1 / 1;}
.media-ph{
  position:absolute;inset:0;display:grid;place-items:center;
  background:radial-gradient(120% 90% at 20% 0%,rgba(122,92,255,.22),transparent 60%),
             radial-gradient(90% 80% at 90% 100%,rgba(63,232,200,.18),transparent 62%),
             var(--cloud);
  color:var(--muted);font-family:var(--font-mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;
}

/* 14. 组件：技能树式路径 -------------------------------------------------- */
.path-list{position:relative;margin-left:12px;padding-left:32px;border-left:1px solid var(--grid);}
.path-node{position:relative;padding-bottom:34px;}
.path-node:last-child{padding-bottom:0;}
.path-node::before{
  content:"";position:absolute;left:-38px;top:6px;width:11px;height:11px;
  background:var(--ink);border:1px solid var(--cyan);transform:rotate(45deg);
}
.path-node-num{font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--violet);}
.path-node-title{margin-top:6px;font-size:18px;font-weight:800;color:var(--paper);}
.path-node-desc{margin-top:6px;max-width:40ch;color:var(--muted);font-size:15px;line-height:1.8;}

/* 15. 动效 ---------------------------------------------------------------- */
[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
[data-reveal].is-revealed{opacity:1;transform:none;}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  [data-reveal]{opacity:1;transform:none;transition:none;}
  .rail-pulse{animation:none;}
  .scroll-progress{transition:none;}
  .btn,.filter-btn,.site-nav a,.nav-cta,.footer-links a,.doc-row{transition-duration:.001ms;}
  .nav-toggle-bars i{transition-duration:.001ms;}
}