/* ===== 微玩体育主站 · 共享样式 /assets/site.css ===== */

/* ---------- 变量 ---------- */
:root{
  --ink:#06130F;
  --ink-2:#081813;
  --panel:#0C211A;
  --panel-soft:#0A1A15;
  --cyan:#39F2C8;
  --blue:#2BD9E8;
  --orange:#FF8B3D;
  --sand:#E7D7B8;
  --grey:#96A6A0;
  --text:#E8F4EF;
  --violet:#8C7CFF;
  --body-soft:#C3D6CE;
  --line:rgba(150,166,160,.2);
  --line-strong:rgba(150,166,160,.36);
  --rail-w:88px;
  --topbar-h:64px;
  --maxw:1440px;
  --font-display:'Barlow Condensed','Oswald','Noto Sans SC',sans-serif;
  --font-serif:'Noto Serif SC','Source Han Serif SC',serif;
  --font-body:'Inter','Noto Sans SC',sans-serif;
  --font-mono:'JetBrains Mono','Roboto Mono',monospace;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,pre{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{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}
input,textarea,select{font:inherit}
[hidden]{display:none !important}
::selection{background:var(--cyan);color:var(--ink)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}
#main-content{display:block}

/* 外壳偏移：桌面让出侧轨，移动端让出顶栏 */
@media (min-width:1024px){
  body{padding-left:var(--rail-w)}
}
@media (max-width:1023px){
  body{padding-top:var(--topbar-h)}
  body[data-nav-lock]{overflow:hidden}
}

/* =========================================================
   头部：侧边轨道 / 移动端抽屉
   ========================================================= */
.site-head{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--rail-w);
  z-index:80;
}
.skip-link{
  position:fixed;
  top:10px;
  left:calc(var(--rail-w) + 14px);
  z-index:120;
  padding:10px 18px;
  border-radius:10px;
  background:var(--cyan);
  color:var(--ink);
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
  transform:translateY(-200%);
  transition:transform .16s ease;
}
.skip-link:focus,
.skip-link:focus-visible{transform:translateY(0)}

.rail{
  position:relative;
  display:flex;
  flex-direction:column;
  height:100%;
  background:linear-gradient(180deg,#0C211A 0%,#081813 52%,#06130F 100%);
  border-right:1px solid var(--line);
}
.rail-strip{
  flex:0 0 auto;
  height:3px;
  background:linear-gradient(90deg,var(--cyan) 0%,var(--blue) 45%,var(--orange) 100%);
}
.rail-brand{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:12px;
  padding:20px 8px 18px;
  border-bottom:1px solid var(--line);
  color:var(--text);
  transition:background-color .12s ease;
}
.rail-brand:hover{background:rgba(57,242,200,.06)}
.rail-mark{display:flex;flex-direction:column;gap:3px;width:26px;transform:skewX(-12deg)}
.rail-mark span{display:block;height:4px;border-radius:2px;background:var(--cyan)}
.rail-mark span:nth-child(1){width:26px}
.rail-mark span:nth-child(2){width:18px;background:var(--blue)}
.rail-mark span:nth-child(3){width:11px;background:var(--orange)}
.rail-brand-text{
  writing-mode:vertical-rl;
  font-family:var(--font-display);
  font-size:16px;
  font-weight:800;
  letter-spacing:.26em;
  line-height:1;
}

.rail-nav{
  position:relative;
  flex:1 1 auto;
  display:flex;
  flex-direction:column;
  min-height:0;
  padding:14px 0 0;
  overflow-y:auto;
  scrollbar-width:none;
}
.rail-nav::-webkit-scrollbar{display:none}
.rail-nav-list{display:flex;flex-direction:column;gap:2px}
.rail-link{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:3px;
  padding:10px 4px;
  border-left:3px solid transparent;
  color:var(--grey);
  transition:background-color .12s ease,color .12s ease,border-color .12s ease;
}
.rail-idx{
  font-family:var(--font-mono);
  font-size:10px;
  line-height:1;
  letter-spacing:.06em;
  color:rgba(150,166,160,.72);
  transition:color .12s ease;
}
.rail-label{
  font-size:13px;
  font-weight:500;
  line-height:1.2;
  letter-spacing:.02em;
  white-space:nowrap;
}
.rail-link:hover{color:var(--text);background:rgba(57,242,200,.07);border-left-color:rgba(57,242,200,.45)}
.rail-link:hover .rail-idx{color:var(--cyan)}
.rail-link[aria-current="page"]{
  color:var(--cyan);
  background:rgba(57,242,200,.11);
  border-left-color:var(--cyan);
}
.rail-link[aria-current="page"] .rail-idx{color:var(--cyan)}

.rail-cta-wrap{margin-top:auto;padding:10px}
.rail-cta{
  display:block;
  padding:12px 4px;
  border-radius:12px;
  background:var(--orange);
  color:var(--ink);
  font-size:12px;
  font-weight:700;
  line-height:1.35;
  letter-spacing:.02em;
  text-align:center;
  transition:background-color .12s ease,transform .12s ease;
}
.rail-cta:hover{background:#FFA163;transform:translateY(-1px)}
.rail-cta:active{transform:translateY(0)}

.rail-toggle{display:none}
.rail-toggle-box{position:relative;display:block;width:16px;height:12px;flex:0 0 auto}
.rail-toggle-box span{
  position:absolute;left:0;
  width:16px;height:2px;border-radius:2px;
  background:var(--cyan);
  transition:transform .2s ease,opacity .2s ease;
}
.rail-toggle-box span:nth-child(1){top:0}
.rail-toggle-box span:nth-child(2){bottom:0}
.rail-toggle-text{font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--text)}
.rail-scrim{display:none}

/* ---------- 移动端 / 平板：顶栏 + 抽屉 ---------- */
@media (max-width:1023px){
  .site-head{width:100%;height:var(--topbar-h);bottom:auto}
  .skip-link{left:14px;top:auto;bottom:calc(var(--topbar-h) + 10px)}
  .rail{
    flex-direction:row;
    align-items:center;
    height:var(--topbar-h);
    border-right:0;
    border-bottom:1px solid var(--line);
  }
  .rail-strip{
    position:absolute;left:0;right:0;bottom:-1px;
    height:2px;
    background:linear-gradient(90deg,var(--cyan) 0%,var(--blue) 50%,var(--orange) 100%);
  }
  .rail-brand{
    flex-direction:row;
    align-items:center;
    gap:10px;
    height:100%;
    padding:0 14px;
    border-bottom:0;
  }
  .rail-brand-text{
    writing-mode:horizontal-tb;
    font-size:15px;
    letter-spacing:.16em;
  }
  .rail-toggle{
    display:flex;
    align-items:center;
    gap:9px;
    margin-left:auto;
    margin-right:12px;
    padding:8px 13px;
    border-radius:10px;
    border:1px solid var(--line-strong);
    background:rgba(57,242,200,.07);
    position:relative;
    z-index:95;
    transition:background-color .12s ease,border-color .12s ease;
  }
  .rail-toggle:hover{background:rgba(57,242,200,.14);border-color:rgba(57,242,200,.55)}
  .site-head[data-open] .rail-toggle-box span:nth-child(1){transform:translateY(5px) rotate(45deg)}
  .site-head[data-open] .rail-toggle-box span:nth-child(2){transform:translateY(-5px) rotate(-45deg)}

  .rail-nav{
    position:fixed;
    top:var(--topbar-h);
    left:0;
    bottom:0;
    width:min(320px,86vw);
    padding:10px 0 0;
    background:var(--panel-soft);
    border-right:1px solid var(--line);
    box-shadow:24px 0 60px rgba(2,8,6,.65);
    transform:translateX(-102%);
    visibility:hidden;
    transition:transform .24s cubic-bezier(.2,.7,.3,1),visibility .24s;
    z-index:90;
    overflow-y:auto;
  }
  .rail-nav[data-open]{transform:translateX(0);visibility:visible}
  .rail-nav-list{gap:0}
  .rail-link{
    flex-direction:row;
    align-items:baseline;
    gap:14px;
    padding:15px 20px;
    font-size:16px;
  }
  .rail-idx{font-size:11px}
  .rail-label{font-size:16px;letter-spacing:.04em}
  .rail-cta-wrap{padding:18px 20px 26px;margin-top:auto}
  .rail-cta{padding:14px 10px;font-size:14px;border-radius:12px}

  .rail-scrim{
    display:block;
    position:fixed;
    top:var(--topbar-h);
    left:0;right:0;bottom:0;
    background:rgba(2,8,6,.72);
    opacity:0;
    pointer-events:none;
    transition:opacity .2s ease;
    z-index:85;
  }
  .site-head[data-open] .rail-scrim{opacity:1;pointer-events:auto}
}

/* =========================================================
   页脚：数据底板
   ========================================================= */
.site-foot{
  position:relative;
  margin-top:clamp(48px,7vw,96px);
  padding-top:clamp(36px,5vw,64px);
  border-top:1px solid var(--line);
  overflow:hidden;
  background:
    radial-gradient(ellipse at 10% 0%,rgba(57,242,200,.11),rgba(57,242,200,0) 55%),
    radial-gradient(ellipse at 88% 8%,rgba(255,139,61,.08),rgba(255,139,61,0) 50%),
    var(--ink-2);
}
.site-foot::before{
  content:"";
  position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--blue) 38%,var(--orange) 78%,rgba(255,139,61,0));
}
.foot-grid{
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 clamp(18px,4vw,56px);
  display:grid;
  grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));
  gap:clamp(24px,3vw,48px);
}
.foot-lead{min-width:0}
.foot-kicker{
  font-family:var(--font-serif);
  font-size:14px;
  letter-spacing:.1em;
  color:var(--sand);
}
.foot-word{
  margin-top:14px;
  font-family:var(--font-display);
  font-size:clamp(44px,6vw,74px);
  font-weight:800;
  line-height:.92;
  letter-spacing:.02em;
  color:var(--text);
}
@supports ((background-clip:text) or (-webkit-background-clip:text)){
  .foot-word{
    background:linear-gradient(100deg,#E8F4EF 0%,#39F2C8 58%,#2BD9E8 100%);
    -webkit-background-clip:text;
    background-clip:text;
    -webkit-text-fill-color:transparent;
    color:transparent;
  }
}
.foot-copy{
  margin-top:16px;
  max-width:34ch;
  font-size:14px;
  line-height:1.75;
  color:var(--body-soft);
}
.foot-pulse{display:flex;align-items:flex-end;gap:4px;height:24px;margin-top:22px}
.foot-pulse span{width:5px;border-radius:2px;background:var(--cyan);opacity:.9}
.foot-pulse span:nth-child(1){height:8px}
.foot-pulse span:nth-child(2){height:16px;background:var(--blue)}
.foot-pulse span:nth-child(3){height:24px}
.foot-pulse span:nth-child(4){height:12px;background:var(--orange)}
.foot-pulse span:nth-child(5){height:19px;background:var(--sand)}

.foot-col{display:flex;flex-direction:column;gap:14px;min-width:0}
.foot-title{
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:600;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--cyan);
}
.foot-links{display:flex;flex-direction:column;gap:9px}
.foot-link{
  display:inline-block;
  font-size:14px;
  color:var(--body-soft);
  transition:color .12s ease,transform .12s ease;
}
.foot-link:hover{color:var(--cyan);transform:translateX(2px)}
.foot-lines{display:flex;flex-direction:column;gap:10px}
.foot-lines li{display:flex;flex-direction:column;gap:2px}
.foot-mono{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.14em;
  color:var(--grey);
  text-transform:uppercase;
}
.foot-line{
  font-size:13.5px;
  line-height:1.6;
  color:#AFC2BA;
  word-break:break-word;
}
.foot-base{
  max-width:var(--maxw);
  margin:clamp(28px,4vw,48px) auto 0;
  padding:18px clamp(18px,4vw,56px) 28px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:12px 28px;
  align-items:center;
  justify-content:space-between;
}
.foot-legal{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.04em;
  line-height:1.9;
  color:var(--grey);
}
.foot-legal-links{display:flex;flex-wrap:wrap;gap:18px}
.foot-legal-links a{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.04em;
  color:var(--sand);
  border-bottom:1px solid rgba(231,215,184,.32);
  padding-bottom:1px;
  transition:color .12s ease,border-color .12s ease;
}
.foot-legal-links a:hover{color:var(--cyan);border-color:var(--cyan)}

@media (max-width:1023px){
  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-lead{grid-column:1 / -1}
}
@media (max-width:620px){
  .foot-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .foot-base{justify-content:flex-start}
}

/* =========================================================
   页面通用布局组件
   ========================================================= */
.wrap{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 clamp(18px,4vw,56px);
}
.wrap--narrow{max-width:860px}
.section{padding:clamp(40px,6vw,72px) 0}
.section--tight{padding:clamp(24px,3vw,40px) 0}

.panel{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:18px;
  padding:clamp(20px,3vw,40px);
}
.panel--flush{padding:0;overflow:hidden}
.panel--ink{background:var(--panel-soft)}
.panel--outline{background:transparent;border-color:var(--line-strong)}
.glow{position:relative;isolation:isolate}
.glow::before{
  content:"";
  position:absolute;
  z-index:-1;
  top:-120px;left:-80px;
  width:min(520px,70%);
  aspect-ratio:1/1;
  border-radius:50%;
  background:radial-gradient(circle,rgba(57,242,200,.16),rgba(57,242,200,0) 70%);
  pointer-events:none;
}
.rule{height:1px;border:0;margin:0;background:var(--line)}

.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.split{display:grid;gap:clamp(20px,3vw,40px)}
.split--7-5{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
.split--8-4{grid-template-columns:minmax(0,8fr) minmax(0,4fr)}
.split--4-8{grid-template-columns:minmax(0,4fr) minmax(0,8fr)}
@media (max-width:900px){
  .grid--2,.grid--3,.split{grid-template-columns:minmax(0,1fr)}
}

/* =========================================================
   排版
   ========================================================= */
.display{
  font-family:var(--font-display);
  font-size:clamp(40px,7vw,88px);
  font-weight:800;
  line-height:.98;
  letter-spacing:-.01em;
}
.h2{
  font-family:var(--font-display);
  font-size:clamp(28px,4vw,40px);
  font-weight:800;
  line-height:1.06;
  letter-spacing:.01em;
}
.h3{
  font-family:var(--font-display);
  font-size:clamp(20px,2.4vw,28px);
  font-weight:700;
  line-height:1.16;
}
.eyebrow{
  display:flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--cyan);
}
.eyebrow::before{content:"";flex:0 0 auto;width:22px;height:2px;background:var(--cyan)}
.serif-lead{
  font-family:var(--font-serif);
  font-size:clamp(18px,2vw,22px);
  line-height:1.72;
  color:var(--sand);
}
.lede{
  font-size:clamp(16px,1.4vw,19px);
  line-height:1.75;
  color:var(--body-soft);
  max-width:62ch;
}
.mono{font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--grey)}
.muted{color:var(--grey)}
.sand{color:var(--sand)}

.prose{max-width:720px;color:var(--body-soft);font-size:16px;line-height:1.8}
.prose p + p{margin-top:1.05em}
.prose h2,
.prose h3{
  margin:2em 0 .6em;
  font-family:var(--font-display);
  font-weight:800;
  line-height:1.15;
  color:var(--text);
}
.prose h2{font-size:clamp(24px,3vw,32px)}
.prose h3{font-size:clamp(19px,2.2vw,24px)}
.prose ul{list-style:disc;padding-left:1.25em}
.prose ol{list-style:decimal;padding-left:1.4em}
.prose li + li{margin-top:.45em}
.prose a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}
.prose strong{color:var(--text);font-weight:600}

/* 面包屑 */
.crumbs{font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:var(--grey)}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li + li::before{content:"/";color:rgba(150,166,160,.5)}
.crumbs a{color:var(--grey);transition:color .12s ease}
.crumbs a:hover{color:var(--cyan)}
.crumbs [aria-current="page"]{color:var(--sand)}

/* =========================================================
   控件
   ========================================================= */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:13px 22px;
  border-radius:12px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  letter-spacing:.01em;
  transition:background-color .12s ease,color .12s ease,border-color .12s ease,transform .12s ease;
}
.btn--primary{background:var(--orange);color:var(--ink)}
.btn--primary:hover{background:#FFA163;transform:translateY(-1px)}
.btn--ghost{background:transparent;border-color:rgba(57,242,200,.5);color:var(--cyan)}
.btn--ghost:hover{background:rgba(57,242,200,.1);border-color:var(--cyan)}
.btn--quiet{background:rgba(232,244,239,.06);color:var(--text);border-color:var(--line)}
.btn--quiet:hover{background:rgba(232,244,239,.12)}
.btn:active{transform:translateY(0)}

.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 10px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(232,244,239,.04);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--grey);
  white-space:nowrap;
}
.tag--cyan{color:var(--cyan);border-color:rgba(57,242,200,.4);background:rgba(57,242,200,.1)}
.tag--orange{color:var(--orange);border-color:rgba(255,139,61,.4);background:rgba(255,139,61,.12)}
.tag--violet{color:var(--violet);border-color:rgba(140,124,255,.4);background:rgba(140,124,255,.12)}

.stat{display:flex;flex-direction:column;gap:4px}
.stat-num{
  font-family:var(--font-mono);
  font-size:clamp(24px,3.2vw,34px);
  font-weight:700;
  line-height:1;
  letter-spacing:-.02em;
  color:var(--cyan);
}
.stat-label{font-size:12px;letter-spacing:.04em;color:var(--grey)}

/* 可展开内容组 */
.disclosure{
  border:1px solid var(--line);
  border-radius:14px;
  background:rgba(12,33,26,.72);
  overflow:hidden;
}
.disclosure + .disclosure{margin-top:10px}
.disclosure-btn{
  display:flex;
  align-items:center;
  gap:14px;
  width:100%;
  padding:16px 18px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  transition:background-color .12s ease;
}
.disclosure-btn:hover{background:rgba(57,242,200,.06)}
.disclosure-icon{
  margin-left:auto;
  flex:0 0 auto;
  width:24px;height:24px;
  display:grid;place-items:center;
  border-radius:50%;
  border:1px solid var(--line-strong);
  font-family:var(--font-mono);
  font-size:14px;
  line-height:1;
  color:var(--cyan);
}
.disclosure-icon::before{content:"+"}
.disclosure-btn[aria-expanded="true"] .disclosure-icon::before{content:"–"}
.disclosure-panel{padding:0 18px 18px;font-size:15px;line-height:1.8;color:var(--body-soft)}

/* =========================================================
   图片容器基础规则（页面阶段放入实际图片）
   ========================================================= */
.media-frame{
  position:relative;
  isolation:isolate;
  overflow:hidden;
  border-radius:16px;
  border:1px solid var(--line);
  background:linear-gradient(150deg,#0F2A22 0%,#06130F 58%,#0A1A15 100%);
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(2,8,6,0) 42%,rgba(2,8,6,.78));
  pointer-events:none;
}
.media-frame img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(.92) contrast(1.06);
}
.media-frame--wide{aspect-ratio:16/9}
.media-frame--band{aspect-ratio:21/9}
.media-frame--square{aspect-ratio:1/1}
.media-frame--tall{aspect-ratio:3/4}
.media-frame--empty::before{
  content:"";
  position:absolute;
  inset:0;
  background:repeating-linear-gradient(135deg,rgba(57,242,200,.07) 0 2px,rgba(57,242,200,0) 2px 14px);
}
@media (max-width:600px){
  .media-frame--tall{aspect-ratio:4/5}
  .media-frame--band{aspect-ratio:16/9}
}

/* =========================================================
   动效
   ========================================================= */
[data-reveal]{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .4s ease,transform .4s ease;
  transition-delay:calc(var(--reveal-i,0) * 80ms);
}
[data-reveal].is-in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  [data-reveal]{opacity:1;transform:none;transition:none}
  .rail-nav{transition:none}
}