/* ============================================================
   贝博赛场 · 共享站点样式 /assets/site.css
   战术板堆叠面板体系：深墨绿底 + 坐标网格 + 切角面板 + 刻度线
   ============================================================ */

/* ---------- 1. Reset ---------- */
*,
*::before,
*::after{box-sizing:border-box}

html{
  -webkit-text-size-adjust:100%;
  text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:88px;
}

body,h1,h2,h3,h4,p,figure,blockquote,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
a{color:inherit}
table{border-collapse:collapse;width:100%}

/* ---------- 2. 设计变量 ---------- */
:root{
  --ink:#0C2620;          /* 深墨绿底 */
  --char:#111514;         /* 炭黑 */
  --moss:#173B32;         /* 深苔面板 */
  --graphite:#2C3733;     /* 石墨线 */
  --lime:#C8FF4D;         /* 荧光青柠 */
  --lime-dim:#93C72E;     /* 青柠暗阶 */
  --amber:#F2A93B;        /* 暖琥珀 */
  --mist:#E9F2EC;         /* 雾白 */
  --sage:#8FA69B;         /* 灰绿 */
  --sage-dim:#6F847A;     /* 灰绿暗阶 */
  --teal:#5BC8B0;         /* 深青链接 */

  --line:rgba(143,166,155,.22);
  --line-strong:rgba(200,255,77,.38);
  --line-amber:rgba(242,169,59,.42);
  --panel:rgba(23,59,50,.72);
  --panel-solid:#173B32;
  --ink-deep:#0A1F16;

  --container:1280px;
  --gutter:clamp(16px,4vw,44px);
  --cut:10px;
  --cut-lg:20px;
  --radius:3px;

  --ease:cubic-bezier(.2,.8,.2,1);

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

/* ---------- 3. 全局排版 ---------- */
body{
  min-height:100vh;
  display:flex;
  flex-direction:column;
  background-color:var(--ink);
  background-image:
    linear-gradient(rgba(200,255,77,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(200,255,77,.035) 1px,transparent 1px);
  background-size:72px 72px;
  background-attachment:fixed;
  color:var(--mist);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

main{flex:1 0 auto;position:relative}

h1,h2,h3,h4{
  font-family:var(--font-head);
  font-weight:700;
  line-height:1.06;
  letter-spacing:-.005em;
  color:var(--mist);
}
h1{font-size:clamp(40px,6vw,88px)}
h2{font-size:clamp(28px,3.4vw,40px)}
h3{font-size:clamp(20px,2.2vw,26px)}
h4{font-size:clamp(17px,1.6vw,20px)}

p{margin:0}

a{
  color:var(--teal);
  text-decoration:underline;
  text-decoration-thickness:1px;
  text-underline-offset:3px;
  transition:color .2s var(--ease);
}
a:hover{color:var(--lime)}

strong{font-weight:700;color:var(--mist)}
small{font-size:13px}

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

::selection{background:var(--lime);color:var(--ink-deep)}

/* ---------- 4. 布局工具 ---------- */
.container{
  width:100%;
  max-width:calc(var(--container) + var(--gutter) * 2);
  margin-inline:auto;
  padding-inline:var(--gutter);
}

.grid{
  display:grid;
  gap:clamp(16px,2.4vw,28px);
}
.grid--asym{grid-template-columns:minmax(0,.9fr) minmax(0,1.6fr)}

.section{
  position:relative;
  padding-block:clamp(48px,7vw,96px);
}
.section__head{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:10px 22px;
  margin-bottom:clamp(20px,3vw,36px);
}

/* ---------- 5. 文本组件 ---------- */
.eyebrow{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:400;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--lime);
  margin:0;
}

.mono{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  letter-spacing:.02em;
}

.lede{
  font-size:clamp(17px,1.6vw,20px);
  line-height:1.7;
  color:var(--sage);
  max-width:62ch;
}

/* ---------- 6. 面板与刻度 ---------- */
.panel{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  padding:clamp(20px,3vw,34px);
}
.panel--cut{
  clip-path:polygon(0 0,calc(100% - var(--cut-lg)) 0,100% var(--cut-lg),100% 100%,0 100%);
}
.panel--raised{
  background:linear-gradient(160deg,var(--moss),rgba(23,59,50,.55));
  box-shadow:8px 8px 0 rgba(12,38,32,.85),8px 8px 0 1px var(--graphite);
}

.tick-line{
  position:relative;
  height:1px;
  border:0;
  background:var(--line);
  margin-block:clamp(24px,4vw,44px);
}
.tick-line::before{
  content:"";
  position:absolute;
  inset:-3px 0 auto 0;
  height:7px;
  background-image:repeating-linear-gradient(90deg,var(--graphite) 0 1px,transparent 1px 24px);
  pointer-events:none;
}

/* ---------- 7. 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 20px;
  font-family:var(--font-head);
  font-weight:700;
  font-size:15px;
  line-height:1.2;
  letter-spacing:.06em;
  text-decoration:none;
  border:1px solid transparent;
  border-radius:var(--radius);
  cursor:pointer;
  transition:background-color .2s var(--ease),color .2s var(--ease),
             border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn--primary{
  background:var(--lime);
  border-color:var(--lime);
  color:var(--ink-deep);
}
.btn--primary:hover{
  background:var(--lime-dim);
  border-color:var(--lime-dim);
  color:var(--ink-deep);
}
.btn--primary:focus-visible{outline-color:var(--mist)}
.btn--ghost{
  background:transparent;
  border-color:var(--line-strong);
  color:var(--mist);
}
.btn--ghost:hover{
  background:rgba(200,255,77,.1);
  border-color:var(--lime);
  color:var(--lime);
}
.btn--sm{padding:8px 14px;font-size:13.5px}

/* ---------- 8. 标签 ---------- */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 9px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  line-height:1.5;
  border:1px solid var(--line);
  border-radius:2px;
  color:var(--sage);
  white-space:nowrap;
}
.tag--live{
  color:var(--amber);
  border-color:var(--line-amber);
  background:rgba(242,169,59,.08);
}
.tag--done{
  color:var(--lime);
  border-color:var(--line-strong);
  background:rgba(200,255,77,.07);
}

/* ---------- 9. 面包屑 ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding-block:18px 6px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.08em;
  color:var(--sage);
}
.breadcrumb__link{
  color:var(--sage);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.breadcrumb__link:hover{
  color:var(--lime);
  border-bottom-color:var(--line-strong);
}
.breadcrumb__sep{color:rgba(200,255,77,.4)}
.breadcrumb__current{color:var(--mist)}

/* ---------- 10. 图片容器（页面阶段放占位/图） ---------- */
.media-frame{
  position:relative;
  overflow:hidden;
  display:block;
  aspect-ratio:16 / 9;
  background:
    linear-gradient(140deg,var(--moss),var(--ink-deep));
  border:1px solid var(--line);
  clip-path:polygon(0 0,calc(100% - var(--cut-lg)) 0,100% var(--cut-lg),100% 100%,0 100%);
}
.media-frame::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(233,242,236,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(233,242,236,.06) 1px,transparent 1px);
  background-size:32px 32px;
}
.media-frame__img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.media-frame__cap{
  position:absolute;
  left:0;
  bottom:0;
  z-index:1;
  padding:6px 12px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.1em;
  color:var(--mist);
  background:rgba(10,31,22,.82);
  border-top:1px solid var(--line-strong);
  border-right:1px solid var(--line-strong);
}

/* ---------- 11. 显现动画 ---------- */
.reveal{opacity:1;transform:none}
.js .reveal{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
.js .reveal.is-in{
  opacity:1;
  transform:translateY(0);
}

/* ---------- 12. Skip link ---------- */
.skip-link{
  position:absolute;
  top:-100px;
  left:12px;
  z-index:200;
  padding:10px 18px;
  background:var(--lime);
  color:var(--ink-deep);
  font-family:var(--font-head);
  font-weight:700;
  font-size:15px;
  letter-spacing:.06em;
  text-decoration:none;
  border-radius:0 0 var(--radius) var(--radius);
  transition:top .2s var(--ease);
}
.skip-link:focus,
.skip-link:focus-visible{
  top:0;
  color:var(--ink-deep);
}

/* ============================================================
   13. 头部命令栏
   ============================================================ */
.cmdbar{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(12,32,27,.94);
  border-bottom:1px solid var(--graphite);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.cmdbar::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:6px;
  pointer-events:none;
  background-image:repeating-linear-gradient(90deg,var(--graphite) 0 1px,transparent 1px 30px);
  opacity:.7;
}

.cmdbar__rail{
  position:relative;
  height:2px;
  background:rgba(200,255,77,.12);
  overflow:hidden;
}
.cmdbar__progress{
  display:block;
  height:100%;
  width:0;
  background:linear-gradient(90deg,var(--lime),var(--teal));
  transition:width .12s linear;
}

.cmdbar__inner{
  display:flex;
  align-items:center;
  gap:clamp(10px,2vw,28px);
  min-height:62px;
  padding-block:9px;
}

/* 品牌 */
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  text-decoration:none;
  color:var(--mist);
}
.brand:hover{color:var(--mist)}
.brand__mark{
  position:relative;
  display:block;
  width:26px;
  height:26px;
  background:var(--lime);
  clip-path:polygon(0 0,100% 0,100% 56%,56% 100%,0 100%);
  transition:background-color .2s var(--ease);
}
.brand__mark::after{
  content:"";
  position:absolute;
  inset:7px;
  background:var(--ink-deep);
  clip-path:polygon(0 0,100% 0,100% 52%,52% 100%,0 100%);
}
.brand:hover .brand__mark{background:var(--lime-dim)}
.brand__text{
  display:flex;
  flex-direction:column;
  line-height:1.05;
  gap:3px;
}
.brand__name{
  font-family:var(--font-head);
  font-weight:700;
  font-size:20px;
  letter-spacing:.03em;
  color:var(--mist);
}
.brand__note{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--sage-dim);
  white-space:nowrap;
}

/* 命令栏导航 */
.cmdnav{
  display:flex;
  margin-left:auto;
  min-width:0;
}
.cmdnav__list{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  gap:2px;
  flex-wrap:nowrap;
}
.cmdnav__item{position:relative}

.cmdnav__link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  padding:8px 10px 10px;
  font-family:var(--font-head);
  font-size:15.5px;
  font-weight:700;
  letter-spacing:.03em;
  line-height:1.2;
  color:var(--sage);
  text-decoration:none;
  white-space:nowrap;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.cmdnav__link::after{
  content:"";
  position:absolute;
  left:10px;
  right:10px;
  bottom:4px;
  height:2px;
  background:var(--lime);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s var(--ease);
}
.cmdnav__link:hover,
.cmdnav__link:focus-visible{
  color:var(--mist);
  background:rgba(200,255,77,.07);
}
.cmdnav__link:hover::after,
.cmdnav__link:focus-visible::after{transform:scaleX(1)}

.cmdnav__link[aria-current="page"]{color:var(--lime)}
.cmdnav__link[aria-current="page"]::after{transform:scaleX(1)}

.cmdnav__idx{
  font-family:var(--font-mono);
  font-size:10px;
  font-weight:400;
  letter-spacing:.04em;
  color:var(--sage-dim);
  transition:color .2s var(--ease);
}
.cmdnav__link:hover .cmdnav__idx{color:var(--lime-dim)}
.cmdnav__link[aria-current="page"] .cmdnav__idx{color:var(--lime)}

/* 命令栏右侧 */
.cmdbar__actions{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}

.cmdbar__status{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:5px 11px;
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.06em;
  line-height:1.6;
  color:var(--amber);
  white-space:nowrap;
  border:1px solid var(--line-amber);
  border-radius:999px;
  background:rgba(242,169,59,.08);
}
.status-dot{
  width:6px;
  height:6px;
  flex:0 0 auto;
  border-radius:50%;
  background:var(--amber);
  box-shadow:0 0 0 0 rgba(242,169,59,.55);
  animation:status-pulse 2.4s var(--ease) infinite;
}
@keyframes status-pulse{
  0%{box-shadow:0 0 0 0 rgba(242,169,59,.55)}
  70%{box-shadow:0 0 0 7px rgba(242,169,59,0)}
  100%{box-shadow:0 0 0 0 rgba(242,169,59,0)}
}

/* 移动导航按钮 */
.nav-toggle{
  display:none;
  align-items:center;
  gap:8px;
  padding:9px 12px;
  background:transparent;
  border:1px solid var(--line-strong);
  border-radius:var(--radius);
  color:var(--mist);
  font-family:var(--font-head);
  font-weight:700;
  font-size:13.5px;
  letter-spacing:.1em;
  cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease),background-color .2s var(--ease);
}
.nav-toggle:hover{
  border-color:var(--lime);
  color:var(--lime);
  background:rgba(200,255,77,.07);
}
.nav-toggle__bars{
  display:grid;
  gap:4px;
  width:16px;
}
.nav-toggle__bars span{
  display:block;
  height:2px;
  width:100%;
  background:currentColor;
  transition:transform .24s var(--ease),opacity .16s var(--ease);
}
.cmdbar[data-open="true"] .nav-toggle__bars span:first-child{transform:translateY(3px) rotate(45deg)}
.cmdbar[data-open="true"] .nav-toggle__bars span:last-child{transform:translateY(-3px) rotate(-45deg)}
.nav-toggle__label{white-space:nowrap}

/* ============================================================
   14. 页脚
   ============================================================ */
.site-footer{
  position:relative;
  margin-top:clamp(56px,9vw,110px);
  background:var(--char);
  border-top:1px solid var(--graphite);
  color:var(--sage);
  font-size:15px;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-1px;
  left:0;
  right:0;
  height:7px;
  pointer-events:none;
  background-image:repeating-linear-gradient(90deg,var(--graphite) 0 1px,transparent 1px 26px);
}

.foot-lede{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:10px 28px;
  padding-block:clamp(30px,5vw,54px) clamp(20px,3vw,32px);
}
.foot-lede__kicker{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--lime);
}
.foot-lede__line{
  font-family:var(--font-head);
  font-weight:700;
  font-size:clamp(21px,3vw,32px);
  line-height:1.2;
  letter-spacing:.01em;
  color:var(--mist);
}

.foot-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.35fr;
  gap:clamp(22px,3.5vw,44px);
  padding-block:clamp(26px,4vw,44px);
  border-top:1px solid var(--graphite);
  border-bottom:1px solid var(--graphite);
}

.foot-brand{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:10px;
  min-width:0;
}
.foot-brand__link{
  font-family:var(--font-head);
  font-weight:700;
  font-size:clamp(22px,2.4vw,28px);
  letter-spacing:.02em;
  color:var(--mist);
  text-decoration:none;
}
.foot-brand__link:hover{color:var(--lime)}
.foot-brand__note{
  max-width:26ch;
  font-size:13.5px;
  line-height:1.7;
  color:var(--sage);
}
.foot-brand__meta{
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
  color:var(--sage-dim);
  padding-top:6px;
  border-top:1px solid var(--graphite);
  width:100%;
}

.foot-col{min-width:0}
.foot-col__title{
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:14px;
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:500;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--sage);
}
.foot-col__title::before{
  content:"";
  width:14px;
  height:1px;
  flex:0 0 auto;
  background:var(--lime);
}

.foot-list{
  display:grid;
  gap:9px;
}
.foot-link{
  display:inline-block;
  font-size:14.5px;
  line-height:1.6;
  color:#B9C8C0;
  text-decoration:none;
  transition:color .18s var(--ease),transform .18s var(--ease);
}
.foot-link:hover{
  color:var(--lime);
  transform:translateX(4px);
}

.foot-contact__item{
  display:grid;
  gap:1px;
  min-width:0;
}
.foot-contact__label{
  font-family:var(--font-mono);
  font-size:10.5px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--sage-dim);
}
.foot-contact__value{
  font-size:14px;
  line-height:1.65;
  color:#B9C8C0;
  overflow-wrap:anywhere;
}
.foot-contact__note{
  margin-top:14px;
  padding-top:12px;
  border-top:1px solid var(--graphite);
  font-size:12.5px;
  line-height:1.7;
  color:var(--sage-dim);
}

.foot-legal{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px 28px;
  padding-block:22px;
}
.foot-legal__copy{
  font-family:var(--font-mono);
  font-size:11.5px;
  letter-spacing:.04em;
  color:var(--sage-dim);
}
.foot-legal__links{
  display:flex;
  flex-wrap:wrap;
  gap:16px;
}
.foot-legal__links a{
  font-family:var(--font-body);
  font-size:12.5px;
  color:var(--sage);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.foot-legal__links a:hover{
  color:var(--lime);
  border-bottom-color:var(--line-strong);
}

/* ============================================================
   15. 响应式
   ============================================================ */

/* 平板：命令栏折叠为下拉索引面板 */
@media (max-width:1080px){
  .nav-toggle{display:inline-flex}
  .cmdbar__actions{margin-left:auto}

  .cmdnav{
    position:absolute;
    top:100%;
    left:0;
    right:0;
    display:block;
    margin-left:0;
    max-height:0;
    overflow:hidden;
    opacity:0;
    visibility:hidden;
    background:var(--char);
    border-top:1px solid var(--graphite);
    border-bottom:1px solid var(--graphite);
    box-shadow:0 24px 40px rgba(4,16,12,.6);
    transition:max-height .3s var(--ease),opacity .22s var(--ease),visibility .22s var(--ease);
  }
  .cmdbar[data-open="true"] .cmdnav{
    max-height:min(72vh,560px);
    overflow-y:auto;
    opacity:1;
    visibility:visible;
  }

  .cmdnav__list{
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    gap:0;
    padding:8px var(--gutter) 18px;
  }
  .cmdnav__link{
    display:flex;
    width:100%;
    padding:13px 4px;
    font-size:17px;
    color:var(--mist);
    border-bottom:1px solid rgba(44,55,51,.85);
    background:transparent;
  }
  .cmdnav__link::after{display:none}
  .cmdnav__link:hover,
  .cmdnav__link:focus-visible{background:rgba(200,255,77,.06)}
  .cmdnav__link[aria-current="page"]{
    color:var(--lime);
    padding-left:14px;
  }
  .cmdnav__link[aria-current="page"]::before{
    content:"";
    position:absolute;
    left:0;
    top:50%;
    width:8px;
    height:2px;
    background:var(--lime);
    transform:translateY(-50%);
  }
  .cmdnav__idx{font-size:11px;min-width:22px}

  .foot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-brand{grid-column:1 / -1}
  .foot-brand__note{max-width:46ch}
}

/* 中等屏 */
@media (max-width:860px){
  .grid--asym{grid-template-columns:minmax(0,1fr)}
  .cmdbar__inner{min-height:58px}
  .brand__name{font-size:18px}
}

/* 手机 */
@media (max-width:640px){
  body{font-size:16.5px}
  .cmdbar__status{display:none}
  .brand__note{display:none}
  .brand__mark{width:22px;height:22px}
  .brand__mark::after{inset:6px}
  .btn--sm{padding:8px 12px;font-size:13px}
  .nav-toggle{padding:8px 10px}
  .nav-toggle__label{display:none}
  .foot-lede{padding-block:26px 16px}
  .foot-grid{gap:26px 20px}
  .foot-legal{padding-block:18px}
  .foot-legal__copy{font-size:11px}
  .section{padding-block:clamp(38px,9vw,60px)}
}

@media (max-width:480px){
  .foot-grid{grid-template-columns:minmax(0,1fr)}
  .foot-col__title{margin-bottom:10px}
}

/* ---------- 16. 降低动效 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,
  *::before,
  *::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .js .reveal,
  .reveal{
    opacity:1;
    transform:none;
  }
  .status-dot{animation:none}
  .foot-link:hover{transform:none}
}