/* ============================================================
   开心体育 · 共享样式 /assets/site.css
   夜场灯光 + 草皮绿 · 技术蓝图网格 · 切角面板
   ============================================================ */

/* ---------- 01 变量 ---------- */
:root{
  --ink:#0B0F0E;
  --ink-2:#123028;
  --ink-3:#0d1f1b;
  --green:#1FBF75;
  --green-lt:#7BF2C0;
  --orange:#FF5A1F;
  --orange-2:#FFA23A;
  --blue:#2E6BFF;
  --paper:#F2F7F4;
  --mist:#9AA8A3;
  --warn:#FFD34D;
  --deep:#050A12;

  --line:rgba(123,242,192,.16);
  --line-strong:rgba(123,242,192,.34);
  --line-blue:rgba(46,107,255,.26);

  --grad-key:linear-gradient(135deg,#123028 0%,#1FBF75 58%,#7BF2C0 100%);
  --grad-deep:linear-gradient(160deg,#123028 0%,#0b1a2e 52%,#0B0F0E 100%);
  --grad-cta:linear-gradient(118deg,#FF5A1F 0%,#FFA23A 100%);
  --grad-veil:linear-gradient(180deg,rgba(5,10,18,.86) 0%,rgba(5,10,18,.42) 58%,rgba(5,10,18,0) 100%);

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

  --cut:14px;
  --shell:1320px;
  --hdr-bar:70px;
  --hdr-strip:54px;
  --hdr-total:calc(var(--hdr-bar) + var(--hdr-strip));
}

/* ---------- 02 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,figure,blockquote,dl,dd,fieldset{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0}
a{color:var(--green);text-decoration:none}
a:hover{color:var(--green-lt)}
table{border-collapse:collapse;width:100%}
[hidden]{display:none !important}

/* ---------- 03 基底与中文排版 ---------- */
body{
  min-height:100vh;
  background-color:var(--ink);
  color:var(--paper);
  font-family:var(--font-sans);
  font-size:1rem;
  font-weight:400;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(180deg,rgba(31,191,117,.12),rgba(11,15,14,0) 42%),
    radial-gradient(90% 60% at 100% 0%,rgba(46,107,255,.13),transparent 62%),
    radial-gradient(70% 50% at 0% 100%,rgba(31,191,117,.08),transparent 60%),
    repeating-linear-gradient(90deg,rgba(123,242,192,.05) 0 1px,transparent 1px 96px),
    repeating-linear-gradient(0deg,rgba(123,242,192,.05) 0 1px,transparent 1px 96px);
}
main,.site-footer{position:relative;z-index:1}

h1,h2,h3,h4{font-weight:900;letter-spacing:-.02em;line-height:1.14}
h1{font-size:clamp(2.6rem,6vw,5rem)}
h2{font-size:clamp(1.7rem,3.4vw,2.6rem)}
h3{font-size:clamp(1.12rem,1.8vw,1.5rem)}
h4{font-size:1.05rem}
p{max-width:38em}
strong{font-weight:700}
.mono{font-family:var(--font-mono)}

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

/* ---------- 04 容器与网格 ---------- */
.shell{width:min(100% - 2rem,var(--shell));margin-inline:auto}
#main-content{display:block}
.page-main{padding-top:var(--hdr-total)}
.page-hero{padding-top:calc(var(--hdr-total) + clamp(1.5rem,5vw,4.5rem))}

.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(1rem,2vw,1.75rem)}
.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-9{grid-column:span 9}
.col-12{grid-column:span 12}
.col-main{grid-column:1 / 9}
.col-right{grid-column:9 / -1}

/* ---------- 05 区块与标题组 ---------- */
.section{position:relative;padding-block:clamp(2.5rem,6vw,5rem)}
.section--tight{padding-block:clamp(1.5rem,3vw,2.5rem)}
.section--band{
  background:linear-gradient(180deg,rgba(18,48,40,.6),rgba(11,15,14,.25));
  border-block:1px solid var(--line);
}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;gap:.75rem 1.25rem;margin-bottom:clamp(1.25rem,3vw,2.25rem)}
.section-title{margin:0}
.section-kicker{
  display:block;
  font-family:var(--font-mono);
  font-size:.72rem;
  font-weight:500;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--orange-2);
}
.section-sub{margin-top:.4rem;color:var(--mist);font-size:1rem}

/* ---------- 06 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.55em;
  min-height:44px;
  padding:.6rem 1.15rem;
  border:1px solid transparent;
  border-radius:2px;
  font-family:var(--font-sans);
  font-size:.95rem;
  font-weight:700;
  letter-spacing:.01em;
  cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,color .22s ease,background-color .22s ease;
}
.btn-cta{background:var(--grad-cta);color:#0B0F0E;box-shadow:0 12px 28px -14px rgba(255,90,31,.95)}
.btn-cta:hover,.btn-cta:focus-visible{color:#0B0F0E;transform:translateY(-2px)}
.btn-ghost{background:rgba(31,191,117,.07);border-color:var(--line-strong);color:var(--paper)}
.btn-ghost:hover{color:var(--paper);border-color:var(--green);background:rgba(31,191,117,.14)}

/* ---------- 07 头部骨架 ---------- */
.skip-link{
  position:absolute;
  left:1rem;
  top:-4.5rem;
  z-index:200;
  padding:.6rem 1rem;
  background:var(--orange);
  color:#0B0F0E;
  font-weight:700;
  border-radius:2px;
  transition:top .2s ease;
}
.skip-link:focus{top:.7rem;color:#0B0F0E}

.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:100;
  color:var(--paper);
  background:var(--grad-veil);
  transition:background-color .35s ease,box-shadow .35s ease,backdrop-filter .35s ease;
}
.site-header.is-scrolled{
  --hdr-bar:58px;
  background:rgba(5,10,18,.95);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  box-shadow:0 1px 0 rgba(123,242,192,.22),0 30px 60px -44px #000;
}
.hdr-shell{
  width:min(100% - 2rem,var(--shell));
  margin-inline:auto;
  display:flex;
  align-items:center;
  gap:clamp(.75rem,2vw,2rem);
}
.hdr-bar{height:var(--hdr-bar);display:flex;align-items:center;transition:height .3s ease}
.hdr-bar .hdr-shell{height:100%}

/* 品牌 */
.brand{display:inline-flex;align-items:baseline;gap:.5rem;flex:0 0 auto;color:var(--paper);text-decoration:none}
.brand:hover{color:var(--paper)}
.brand-mark{
  width:11px;height:11px;
  background:var(--grad-key);
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);
  box-shadow:0 0 16px rgba(31,191,117,.75);
}
.brand-text{font-size:1.12rem;font-weight:900;letter-spacing:-.01em}
.brand-sub{font-family:var(--font-mono);font-size:.68rem;font-weight:500;letter-spacing:.14em;color:var(--mist)}

/* 主导航 */
.site-nav{flex:1 1 auto;min-width:0}
.nav-list{display:flex;align-items:center;gap:clamp(.35rem,1.4vw,1.05rem)}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:.4em;
  min-height:44px;
  padding:.4rem .3rem;
  font-size:.94rem;
  font-weight:500;
  color:rgba(242,247,244,.82);
  border-bottom:2px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.nav-link:hover{color:var(--paper)}
.nav-idx{font-family:var(--font-mono);font-size:.67rem;letter-spacing:.12em;color:var(--mist);transition:color .2s ease}
.nav-link:hover .nav-idx{color:var(--green-lt)}
.nav-link[aria-current="page"]{color:var(--paper);border-bottom-color:var(--orange)}
.nav-link[aria-current="page"] .nav-idx{color:var(--orange)}

.nav-drawer-title,.nav-drawer-foot{display:none}

/* 头部右侧 */
.hdr-actions{margin-left:auto;display:flex;align-items:center;gap:.6rem;flex:0 0 auto}
.hdr-cta{font-size:.9rem;padding:.5rem 1rem}

.nav-toggle{
  display:none;
  align-items:center;
  gap:.5rem;
  min-height:44px;
  min-width:44px;
  padding:.35rem .7rem;
  border:1px solid var(--line);
  border-radius:2px;
  color:var(--paper);
  cursor:pointer;
  transition:border-color .2s ease;
}
.nav-toggle:hover{border-color:var(--green)}
.nav-toggle-label{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.12em}
.nav-toggle-bars{position:relative;display:block;width:18px;height:12px}
.nav-toggle-bars::before,
.nav-toggle-bars::after{
  content:"";position:absolute;left:0;right:0;height:1.5px;background:var(--green-lt);
  transition:transform .25s ease,top .25s ease,bottom .25s ease;
}
.nav-toggle-bars::before{top:0}
.nav-toggle-bars::after{bottom:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before{top:5px;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after{bottom:5px;transform:rotate(-45deg)}

/* ---------- 08 联赛切换条 ---------- */
.league-strip{
  background:rgba(5,10,18,.74);
  border-bottom:1px solid var(--line);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  transition:background-color .35s ease;
}
.site-header.is-scrolled .league-strip{background:rgba(5,10,18,.98)}
.league-shell{min-height:var(--hdr-strip);gap:.7rem}
.league-label{
  flex:0 0 auto;
  padding-right:.75rem;
  border-right:1px solid var(--line-strong);
  font-family:var(--font-mono);
  font-size:.7rem;
  font-weight:500;
  letter-spacing:.14em;
  color:var(--green-lt);
  white-space:nowrap;
}
.league-track{flex:1 1 auto;overflow-x:auto;overscroll-behavior-x:contain;scroll-snap-type:x proximity;scrollbar-width:none}
.league-track::-webkit-scrollbar{height:0}
.league-list{display:flex;gap:.5rem;align-items:center}
.league-btn{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:.45rem;
  min-height:44px;
  padding:.35rem .75rem;
  border:1px solid var(--line);
  border-radius:2px;
  background:rgba(18,48,40,.35);
  color:rgba(242,247,244,.8);
  font-size:.88rem;
  font-weight:500;
  cursor:pointer;
  scroll-snap-align:start;
  transition:border-color .2s ease,color .2s ease,background-color .2s ease;
}
.league-btn:hover{border-color:var(--green);color:var(--paper)}
.league-btn[aria-pressed="true"]{border-color:var(--orange);background:rgba(255,90,31,.14);color:var(--paper)}
.league-btn[aria-pressed="true"]::after{content:"";position:absolute;left:.7rem;right:.7rem;bottom:-1px;height:2px;background:var(--orange)}
.league-idx{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.06em;color:var(--green-lt)}
.league-btn[aria-pressed="true"] .league-idx{color:var(--orange-2)}
.league-readout{
  flex:0 0 auto;
  padding-left:.75rem;
  border-left:1px solid var(--line-strong);
  font-family:var(--font-mono);
  font-size:.72rem;
  color:var(--mist);
  white-space:nowrap;
}

/* 滚动刻度 */
.scroll-rail{height:2px;background:linear-gradient(90deg,transparent,rgba(123,242,192,.22),transparent)}
.scroll-rail-fill{
  display:block;
  width:0;
  height:100%;
  background:linear-gradient(90deg,var(--green) 0%,var(--green-lt) 62%,var(--orange) 100%);
  transition:width .12s linear;
}

/* 移动遮罩 */
.nav-backdrop{
  position:fixed;
  inset:0;
  z-index:120;
  display:none;
  background:rgba(5,10,18,.68);
  opacity:0;
  pointer-events:none;
  cursor:pointer;
  transition:opacity .3s ease;
}

/* ---------- 09 页脚 ---------- */
.site-footer{
  margin-top:clamp(2.5rem,6vw,5rem);
  background:var(--deep);
  border-top:1px solid var(--line-blue);
  color:rgba(242,247,244,.82);
}
.foot-rule{height:2px;background:linear-gradient(90deg,transparent,var(--blue) 22%,var(--green) 68%,transparent);opacity:.85}
.foot-shell{width:min(100% - 2rem,var(--shell));margin-inline:auto;padding:clamp(2.25rem,5vw,3.5rem) 0 1.5rem}
.foot-top{display:grid;grid-template-columns:1.15fr 1fr 1.25fr 1fr;gap:clamp(1.5rem,3vw,3rem)}
.foot-brand{display:grid;align-content:start;gap:.45rem}
.foot-mark{width:14px;height:14px;background:var(--grad-key);clip-path:polygon(0 0,100% 0,100% 72%,72% 100%,0 100%)}
.foot-name{font-size:1.4rem;font-weight:900;letter-spacing:-.01em;color:var(--paper)}
.foot-desc{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;color:var(--mist);max-width:24em}
.foot-col-title{
  margin-bottom:.9rem;
  padding-bottom:.5rem;
  border-bottom:1px solid var(--line);
  font-family:var(--font-mono);
  font-size:.72rem;
  font-weight:500;
  letter-spacing:.14em;
  color:var(--green-lt);
}
.foot-index-list,.foot-legal-links{display:grid;gap:.1rem}
.foot-index-item{display:flex;align-items:center;gap:.6rem}
.foot-idx{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.08em;color:var(--mist)}
.foot-link{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  font-size:.95rem;
  color:rgba(242,247,244,.82);
  transition:color .2s ease,transform .2s ease;
}
.foot-link:hover{color:var(--orange-2);transform:translateX(3px)}
.foot-info-list{display:grid;gap:.7rem}
.foot-info-item{display:grid;gap:.1rem}
.foot-info-label{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.12em;color:var(--mist)}
.foot-info-value{font-size:.92rem;color:var(--paper);word-break:break-word}
.foot-note{margin-top:.9rem;max-width:26em;font-size:.82rem;color:var(--mist)}
.foot-index-line{
  position:relative;
  height:18px;
  margin:clamp(1.75rem,4vw,2.75rem) 0 1rem;
  border-top:1px solid var(--line-blue);
}
.foot-index-line::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;height:12px;
  background-image:repeating-linear-gradient(90deg,var(--line-strong) 0 1px,transparent 1px clamp(56px,8vw,120px));
}
.foot-bottom{display:flex;flex-wrap:wrap;align-items:center;gap:.75rem 1.25rem;padding-top:1rem;border-top:1px solid rgba(46,107,255,.18)}
.foot-copy{font-family:var(--font-mono);font-size:.74rem;letter-spacing:.04em;color:var(--mist);max-width:none}
.foot-motto{margin-left:auto;font-family:var(--font-mono);font-size:.88rem;letter-spacing:.06em;color:var(--green-lt);max-width:none}
.to-top{
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  min-height:44px;
  padding:.4rem .9rem;
  border:1px solid var(--line);
  border-radius:2px;
  color:var(--paper);
  font-size:.85rem;
  opacity:.55;
  cursor:pointer;
  transition:opacity .25s ease,border-color .25s ease,color .25s ease;
}
.to-top.is-ready{opacity:1}
.to-top:hover,.to-top:focus-visible{border-color:var(--orange);color:var(--orange-2)}
.to-top-arrow{width:10px;height:10px;border-left:1px solid currentColor;border-top:1px solid currentColor;transform:rotate(45deg);transition:transform .25s ease}
.to-top:hover .to-top-arrow{transform:rotate(45deg) translate(2px,-2px)}

/* ---------- 10 通用组件 ---------- */
/* 切角 */
.cut{clip-path:polygon(0 0,calc(100% - var(--cut)) 0,100% var(--cut),100% 100%,var(--cut) 100%,0 calc(100% - var(--cut)))}
.cut--rev{clip-path:polygon(var(--cut) 0,100% 0,100% calc(100% - var(--cut)),calc(100% - var(--cut)) 100%,0 100%,0 var(--cut))}

/* 面板 */
.panel{
  position:relative;
  padding:clamp(1.1rem,2.2vw,1.75rem);
  background:var(--grad-deep);
  border:1px solid var(--line);
  box-shadow:inset 0 0 0 1px rgba(11,15,14,.35);
}
.panel::before,
.panel::after{content:"";position:absolute;width:12px;height:12px;pointer-events:none}
.panel::before{top:6px;left:6px;border-top:1px solid var(--line-strong);border-left:1px solid var(--line-strong)}
.panel::after{bottom:6px;right:6px;border-bottom:1px solid var(--line-strong);border-right:1px solid var(--line-strong)}
.panel--flat{background:linear-gradient(170deg,var(--ink-3),var(--ink))}
.panel--key{background:linear-gradient(150deg,rgba(18,48,40,.95),rgba(11,15,14,.95));border-color:var(--line-strong)}

/* 展签 */
.exhibit{
  display:block;
  padding:.85rem 1rem;
  background:linear-gradient(150deg,rgba(18,48,40,.92),rgba(11,15,14,.92));
  border:1px solid var(--line);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.exhibit:hover,.exhibit:focus-within{transform:translateY(-4px);border-color:var(--orange);box-shadow:0 20px 44px -26px rgba(255,90,31,.9)}
.exhibit-idx{display:block;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.14em;color:var(--green-lt)}
.exhibit-title{margin-top:.25rem;font-size:1.05rem;font-weight:700;color:var(--paper)}
.exhibit-note{margin-top:.25rem;font-size:.85rem;color:var(--mist);max-width:28em}

/* 数据读数 */
.readout{display:grid;gap:.15rem}
.readout-value{font-family:var(--font-mono);font-size:clamp(1.5rem,3vw,2.2rem);font-weight:700;line-height:1;letter-spacing:-.01em;color:var(--green-lt)}
.readout-label{font-size:.8rem;color:var(--mist)}
.data-num{font-family:var(--font-mono);font-weight:700;color:var(--green-lt)}

/* 标签 */
.tag{
  display:inline-flex;
  align-items:center;
  gap:.35rem;
  padding:.2rem .5rem;
  border:1px solid var(--line);
  border-radius:2px;
  font-family:var(--font-mono);
  font-size:.7rem;
  letter-spacing:.1em;
  color:var(--green-lt);
}
.tag--hot{border-color:rgba(255,90,31,.5);color:var(--orange-2)}
.tag--warn{border-color:rgba(255,211,77,.5);color:var(--warn)}

/* 图片容器 */
.img-frame{
  position:relative;
  display:block;
  overflow:hidden;
  aspect-ratio:16 / 9;
  background:linear-gradient(135deg,#123028 0%,#0b1a2e 55%,#0B0F0E 100%);
  border:1px solid var(--line);
}
.img-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    repeating-linear-gradient(0deg,rgba(242,247,244,.05) 0 1px,transparent 1px 3px),
    radial-gradient(120% 90% at 20% 0%,rgba(31,191,117,.28),transparent 62%);
  mix-blend-mode:screen;
}
.img-frame img{width:100%;height:100%;object-fit:cover;filter:contrast(1.08) saturate(1.06)}
.img-frame--4x3{aspect-ratio:4 / 3}
.img-frame--3x4{aspect-ratio:3 / 4}
.img-frame--1x1{aspect-ratio:1 / 1}
.img-frame--21x9{aspect-ratio:21 / 9}
.img-cap{margin-top:.6rem;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.08em;color:var(--mist)}

/* 横向主题带 */
.band{
  display:flex;
  gap:1rem;
  overflow-x:auto;
  overscroll-behavior-x:contain;
  scroll-snap-type:x mandatory;
  padding-bottom:1rem;
  scrollbar-color:var(--green) rgba(123,242,192,.08);
}
.band::-webkit-scrollbar{height:6px}
.band::-webkit-scrollbar-track{background:rgba(123,242,192,.08)}
.band::-webkit-scrollbar-thumb{background:linear-gradient(90deg,var(--green),var(--green-lt))}
.band-item{flex:0 0 clamp(240px,28vw,320px);scroll-snap-align:start}

/* 筛选 */
.filter-bar{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:1.25rem}
.filter-btn{
  min-height:44px;
  padding:.45rem .95rem;
  border:1px solid var(--line);
  border-radius:2px;
  background:rgba(18,48,40,.4);
  color:rgba(242,247,244,.78);
  font-size:.9rem;
  cursor:pointer;
  transition:border-color .2s ease,color .2s ease,background-color .2s ease;
}
.filter-btn:hover{border-color:var(--green);color:var(--paper)}
.filter-btn[aria-pressed="true"]{background:rgba(255,90,31,.14);border-color:var(--orange);color:var(--paper)}
.empty-state{
  padding:1.5rem;
  border:1px dashed var(--line);
  color:var(--mist);
  font-size:.95rem;
}

/* 问答折叠 */
.qa-list{display:grid;gap:.6rem}
.qa-item{border:1px solid var(--line);background:linear-gradient(150deg,rgba(18,48,40,.55),rgba(11,15,14,.55))}
.qa-trigger{
  display:flex;
  align-items:center;
  gap:.75rem;
  width:100%;
  min-height:52px;
  padding:.9rem 1.1rem;
  text-align:left;
  font-weight:700;
  cursor:pointer;
}
.qa-trigger::after{content:"+";margin-left:auto;font-family:var(--font-mono);color:var(--green-lt)}
.qa-trigger[aria-expanded="true"]::after{content:"–";color:var(--orange)}
.qa-panel{padding:0 1.1rem 1.15rem;font-size:.95rem;color:var(--mist)}
.qa-panel p{max-width:34em}

/* 面包屑 */
.crumbs{padding-block:1rem}
.crumbs-list{display:flex;flex-wrap:wrap;gap:.4rem;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.08em;color:var(--mist)}
.crumbs-item{display:flex;align-items:center;gap:.4rem}
.crumbs-item + .crumbs-item::before{content:"/";color:var(--line-strong)}
.crumbs-link{color:var(--mist)}
.crumbs-link:hover{color:var(--green-lt)}
.crumbs-current{color:var(--green-lt)}

/* 正文 */
.prose{max-width:34em;color:rgba(242,247,244,.9)}
.prose h2{margin:1.5em 0 .5em}
.prose h3{margin:1.3em 0 .4em}
.prose p{color:rgba(242,247,244,.86);max-width:34em}
.prose ul,.prose ol{display:grid;gap:.45rem;margin:.9em 0}
.prose li{position:relative;padding-left:1.15rem}
.prose li::before{
  content:"";
  position:absolute;
  left:0;
  top:.72em;
  width:6px;height:6px;
  background:var(--green);
  clip-path:polygon(0 0,100% 0,100% 70%,70% 100%,0 100%);
}
.prose a{text-decoration:underline;text-underline-offset:3px}

/* ---------- 11 动效 ---------- */
[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.2,1)}
[data-reveal].is-in{opacity:1;transform:none}

/* ---------- 12 响应式 ---------- */
@media (max-width:1100px){
  .col-3,.col-4,.col-5,.col-7,.col-8,.col-9{grid-column:span 6}
}
@media (max-width:1000px){
  :root{--hdr-bar:60px;--hdr-strip:52px;--shell:100%}
  .col-3,.col-4,.col-5,.col-6,.col-7,.col-8,.col-9,.col-12,.col-main,.col-right{grid-column:1 / -1}

  .hdr-cta{display:none}
  .nav-toggle{display:inline-flex}

  .site-nav{
    position:fixed;
    top:0;
    right:0;
    z-index:130;
    display:flex;
    flex-direction:column;
    gap:1.25rem;
    width:min(86vw,340px);
    height:100vh;
    height:100dvh;
    padding:calc(var(--hdr-total) + 1rem) 1.25rem 2rem;
    overflow-y:auto;
    overscroll-behavior:contain;
    background:linear-gradient(200deg,#123028 0%,#050A12 68%);
    border-left:1px solid var(--line-strong);
    clip-path:polygon(22px 0,100% 0,100% 100%,0 100%,0 22px);
    transform:translateX(103%);
    transition:transform .38s cubic-bezier(.33,1,.36,1);
  }
  .site-nav[data-open]{transform:translateX(0)}
  .nav-drawer-title{
    display:block;
    font-family:var(--font-mono);
    font-size:.7rem;
    letter-spacing:.14em;
    color:var(--green-lt);
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-item + .nav-item{border-top:1px solid rgba(123,242,192,.12)}
  .nav-link{
    width:100%;
    justify-content:flex-start;
    min-height:52px;
    padding-inline:.25rem;
    border-bottom:0;
    font-size:1.05rem;
  }
  .nav-link[aria-current="page"]{border-bottom-color:transparent;color:var(--orange-2)}
  .nav-link[aria-current="page"]::after{content:"●";margin-left:auto;font-size:.6rem;color:var(--orange)}
  .nav-drawer-foot{display:grid;gap:.75rem;margin-top:auto}
  .nav-drawer-cta{width:100%}
  .nav-drawer-note{font-family:var(--font-mono);font-size:.7rem;color:var(--mist);max-width:none;word-break:break-all}

  .nav-backdrop{display:block}
  body[data-nav-open]{overflow:hidden}
  body[data-nav-open] .nav-backdrop{opacity:1;pointer-events:auto}

  .foot-top{grid-template-columns:1fr 1fr}
  .foot-motto{margin-left:0}
}
@media (max-width:720px){
  .brand-sub{display:none}
  .league-label,.league-readout{display:none}
  .league-track{padding-right:.5rem}
  .foot-top{grid-template-columns:1fr}
  .foot-bottom{align-items:flex-start;flex-direction:column}
  .to-top{align-self:flex-start}
  .band-item{flex-basis:min(76vw,280px)}
}
@media (max-width:420px){
  .shell,.hdr-shell,.foot-shell{width:min(100% - 1.25rem,var(--shell))}
  .brand-text{font-size:1rem}
}

/* ---------- 13 减少动效 ---------- */
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  [data-reveal]{opacity:1;transform:none}
  .scroll-rail-fill{transition:none}
  .exhibit:hover,.exhibit:focus-within{transform:none}
  .btn:hover,.btn:focus-visible{transform:none}
  .foot-link:hover{transform:none}
}