/* ==========================================================================
   沙巴赛场 · 共享站点样式 /assets/site.css
   0 重置 · 1 变量 · 2 排版 · 3 布局骨架 · 4 通用组件
   5 悬浮胶囊头部 · 6 页脚 · 7 响应式 · 8 动效与无障碍
   ========================================================================== */

/* ---------- 0 重置 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body,h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,figcaption,blockquote,dl,dt,dd{margin:0;padding:0}
ul,ol{list-style:none}
img,svg,video{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
input,select,textarea{font:inherit;color:inherit}
hr{border:0}

/* ---------- 1 设计变量 ---------- */
:root{
  --sabah-900:#0E2E22;
  --sabah-700:#17513A;
  --sabah-500:#2C7D59;
  --moss-200:#DCE7DC;
  --rice-50:#F8F5ED;
  --charcoal-950:#131615;
  --rock-600:#5F6764;
  --paper-edge:#E3DDCB;
  --clay-500:#C2561F;
  --neon-400:#4FE0C8;

  --font-display:"Saira Condensed","Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Sans SC",system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;

  --gutter:24px;
  --maxw:1360px;
  --sp-1:8px;
  --sp-2:14px;
  --sp-3:22px;
  --sp-4:32px;
  --sp-5:48px;
  --sp-6:72px;
  --sp-7:104px;

  --pill:999px;
  --edge:1px solid var(--paper-edge);
  --shadow-card:0 18px 40px -30px rgba(14,46,34,.75);
}

/* ---------- 2 排版 ---------- */
body{
  min-height:100vh;
  background-color:var(--rice-50);
  color:var(--charcoal-950);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(95,103,100,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(95,103,100,.04) 1px,transparent 1px);
  background-size:44px 44px;
}
h1,h2,h3,h4,h5,h6{
  font-family:var(--font-display);
  line-height:1.06;
  letter-spacing:.01em;
  color:var(--sabah-700);
  font-weight:600;
}
h1{font-weight:300;font-size:clamp(2rem,4.4vw,3.4rem)}
h2{font-size:clamp(1.5rem,2.6vw,2.25rem)}
h3{font-size:clamp(1.1rem,1.6vw,1.35rem)}
h4{font-size:1.05rem}
strong,b{font-weight:800}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.01em}
.display{
  font-family:var(--font-display);
  font-weight:300;
  font-size:clamp(2.6rem,7.2vw,6.4rem);
  line-height:.94;
  letter-spacing:.005em;
  color:var(--sabah-700);
}
.display b,.display strong{font-weight:800}
.eyebrow{
  display:flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--rock-600);
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--sabah-500);flex:0 0 auto}
.prose{max-width:72ch}
.prose p+p{margin-top:1em}
.prose ul,.prose ol{display:grid;gap:.5em;padding-left:1.2em}
.prose ul{list-style:disc}
.prose ol{list-style:decimal}
.prose a{color:var(--sabah-700);border-bottom:1px solid var(--sabah-500)}
.prose a:hover{background:rgba(79,224,200,.28);border-bottom-color:var(--sabah-700)}

/* ---------- 3 布局骨架 ---------- */
.shell{
  width:100%;
  max-width:calc(var(--maxw) + var(--gutter) * 2);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.grid{display:grid;gap:var(--sp-3)}
.grid--3-9{grid-template-columns:3fr 9fr}
.grid--4-8{grid-template-columns:4fr 8fr}
.grid--5-7{grid-template-columns:5fr 7fr}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}

.section{padding-block:var(--sp-6)}
.section--tight{padding-block:var(--sp-4)}
.section-head{display:grid;gap:12px;max-width:74ch;margin-bottom:var(--sp-4)}

.index-rail{position:relative;padding-left:26px}
.index-rail::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:1px;background:var(--paper-edge);
}
.index-rail::after{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:8px;opacity:.5;
  background-image:repeating-linear-gradient(180deg,var(--rock-600) 0 1px,transparent 1px 16px);
}
.index-rail__inner{position:sticky;top:126px}

/* ---------- 4 通用组件 ---------- */
.scalebar{position:relative;margin-block:var(--sp-5);padding-top:12px}
.scalebar::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--paper-edge);
}
.scalebar::after{
  content:"";position:absolute;top:0;left:0;right:0;height:6px;opacity:.45;
  background-image:repeating-linear-gradient(90deg,var(--rock-600) 0 1px,transparent 1px 22px);
}

.frame{position:relative;background:var(--rice-50);border:var(--edge);padding:var(--sp-4)}
.frame::before{
  content:"";position:absolute;inset:10px;border:1px solid rgba(44,125,89,.24);pointer-events:none;
}
.frame__label{
  position:absolute;top:-10px;left:22px;padding:0 10px;background:var(--rice-50);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--rock-600);
}

.panel{position:relative;background:#FFFDF7;border:var(--edge);padding:var(--sp-3)}
.panel--moss{background:var(--moss-200);border-color:#cbd9cb}
.panel--dark{background:var(--charcoal-950);border-color:rgba(79,224,200,.24);color:var(--moss-200)}
.panel--dark h1,.panel--dark h2,.panel--dark h3,.panel--dark h4{color:var(--rice-50)}
.panel--stack{box-shadow:8px 8px 0 -1px var(--paper-edge)}
.panel--lift{transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.panel--lift:hover{transform:translateY(-2px);box-shadow:var(--shadow-card);border-color:var(--sabah-500)}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 9px;border-radius:2px;border:1px solid var(--sabah-500);
  background:rgba(44,125,89,.07);color:var(--sabah-700);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;
}
.tag--clay{border-color:var(--clay-500);color:var(--clay-500);background:rgba(194,86,31,.08)}
.tag--neon{border-color:var(--neon-400);background:var(--neon-400);color:var(--charcoal-950)}
.tag--dark{border-color:rgba(79,224,200,.4);background:transparent;color:var(--neon-400)}

.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 22px;border-radius:var(--pill);
  border:1px solid var(--sabah-500);background:transparent;color:var(--sabah-700);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn:hover{background:var(--sabah-700);border-color:var(--sabah-700);color:var(--rice-50)}
.btn--solid{background:var(--sabah-700);border-color:var(--sabah-700);color:var(--rice-50)}
.btn--solid:hover{background:var(--sabah-900);border-color:var(--sabah-900)}
.btn--ghost{border-color:var(--paper-edge);color:var(--rock-600)}
.btn--ghost:hover{background:var(--charcoal-950);border-color:var(--charcoal-950);color:var(--rice-50)}
.btn--sm{padding:8px 16px;font-size:13.5px}

.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:var(--rock-600)}
.crumb li{display:inline-flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:var(--paper-edge)}
.crumb a{color:var(--sabah-500)}
.crumb a:hover{color:var(--sabah-700);border-bottom:1px solid var(--sabah-500)}
.crumb [aria-current="page"]{color:var(--charcoal-950)}

.figure{
  --ratio:16/9;
  position:relative;display:block;margin:0;overflow:hidden;
  background:var(--moss-200);border:var(--edge);
}
.figure--wide{--ratio:21/9}
.figure--tall{--ratio:4/5}
.figure--square{--ratio:1/1}
.figure__media{
  display:block;width:100%;aspect-ratio:var(--ratio);object-fit:cover;object-position:center;
  background-image:linear-gradient(150deg,#DCE7DC 0%,#c8d7c9 55%,#b7c9b9 100%);
}
.figure__cap{
  display:flex;flex-wrap:wrap;gap:4px 10px;align-items:baseline;
  padding:10px 14px;background:#FFFDF7;border-top:var(--edge);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.04em;color:var(--rock-600);
}
.figure__badge{
  position:absolute;top:12px;left:12px;z-index:2;
  padding:3px 8px;border-radius:2px;background:var(--charcoal-950);color:var(--neon-400);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;
}

/* ---------- 5 悬浮胶囊头部 ---------- */
.skip-link{
  position:fixed;z-index:999;top:10px;left:50%;
  translate:-50% -220%;
  padding:9px 20px;border-radius:var(--pill);
  background:var(--neon-400);color:var(--charcoal-950);
  font-size:14px;font-weight:700;letter-spacing:.02em;
  transition:translate .18s ease;
}
.skip-link:focus{translate:-50% 0}

.site-header{
  position:sticky;top:0;z-index:80;
  padding:16px var(--gutter) 0;
}
.header-inner,
.header-scale{width:100%;max-width:var(--maxw);margin-inline:auto}

.header-inner{
  position:relative;
  display:flex;align-items:center;gap:16px;
  padding:8px 10px 8px 18px;
  border:1px solid rgba(79,224,200,.2);
  border-radius:var(--pill);
  background:linear-gradient(180deg,rgba(14,46,34,.99),rgba(14,46,34,.94));
  color:var(--moss-200);
  box-shadow:0 16px 34px -26px rgba(14,46,34,.95);
  backdrop-filter:blur(6px);
}

.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;padding:5px 0;color:var(--rice-50)}
.brand-mark{
  width:10px;height:10px;border-radius:2px;background:var(--neon-400);
  box-shadow:0 0 0 3px rgba(79,224,200,.16);transform:rotate(45deg);
}
.brand-text{
  font-family:var(--font-display);font-weight:800;font-size:23px;letter-spacing:.06em;line-height:1;
}
.brand-tag{
  padding:1px 7px;border:1px solid rgba(79,224,200,.4);border-radius:var(--pill);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.06em;color:var(--neon-400);
}

.nav-toggle{
  display:none;align-items:center;gap:9px;margin-left:auto;
  padding:9px 14px;border:1px solid rgba(79,224,200,.32);border-radius:var(--pill);
  color:var(--moss-200);font-size:14px;letter-spacing:.04em;
  transition:border-color .18s ease,background-color .18s ease,color .18s ease;
}
.nav-toggle:hover{border-color:var(--neon-400);background:rgba(79,224,200,.1);color:var(--rice-50)}
.nav-toggle-icon{position:relative;display:block;width:16px;height:10px}
.nav-toggle-icon::before,
.nav-toggle-icon::after{
  content:"";position:absolute;left:0;right:0;height:1.5px;background:currentColor;
  transition:transform .2s ease;
}
.nav-toggle-icon::before{top:0}
.nav-toggle-icon::after{bottom:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-icon::before{transform:translateY(4.25px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-icon::after{transform:translateY(-4.25px) rotate(-45deg)}

.site-nav{flex:1 1 auto;display:flex;justify-content:center}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-link{
  display:inline-flex;align-items:baseline;gap:6px;
  padding:8px 13px;border:1px solid transparent;border-radius:var(--pill);
  color:var(--moss-200);font-size:15px;line-height:1.35;
  transition:border-color .18s ease,background-color .18s ease,color .18s ease;
}
.nav-link:hover{border-color:rgba(79,224,200,.5);background:rgba(79,224,200,.1);color:#fff}
.nav-num{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.08em;color:rgba(220,231,220,.55)}
.nav-link[aria-current="page"]{
  background:var(--sabah-500);border-color:rgba(79,224,200,.55);color:#fff;
}
.nav-link[aria-current="page"] .nav-num{color:var(--neon-400)}

.header-cta{
  flex:0 0 auto;margin-left:auto;
  display:inline-flex;align-items:center;
  padding:9px 18px;border:1px solid transparent;border-radius:var(--pill);
  background:var(--neon-400);color:var(--charcoal-950);
  font-size:14.5px;font-weight:700;letter-spacing:.02em;
  transition:background-color .18s ease,transform .18s ease;
}
.header-cta:hover{background:#7CF0DC;transform:translateY(-1px)}

.header-scale{
  position:relative;height:2px;margin-top:7px;
  background:rgba(227,221,203,.75);
}
.header-scale::before{
  content:"";position:absolute;left:0;right:0;top:-6px;height:7px;
  background-image:repeating-linear-gradient(90deg,rgba(95,103,100,.5) 0 1px,transparent 1px 20px);
  pointer-events:none;
}
.header-scale__fill{
  position:absolute;inset:0;display:block;
  background:var(--neon-400);
  transform:scaleX(0);transform-origin:left center;
  transition:transform .14s linear;
}

/* ---------- 6 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:var(--sp-7);
  padding:var(--sp-6) 0 var(--sp-4);
  background:var(--sabah-900);
  color:var(--moss-200);
  border-top:3px solid var(--sabah-700);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:8px;
  background-image:repeating-linear-gradient(90deg,rgba(79,224,200,.35) 0 1px,transparent 1px 28px);
}
.site-footer a{color:inherit}

.footer-brand{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  padding-bottom:var(--sp-3);margin-bottom:var(--sp-4);
  border-bottom:1px solid rgba(220,231,220,.16);
}
.footer-brand__mark{
  width:10px;height:10px;border-radius:2px;background:var(--neon-400);transform:rotate(45deg);
}
.footer-brand__name{
  font-family:var(--font-display);font-weight:800;font-size:26px;letter-spacing:.06em;color:var(--rice-50);
}
.footer-brand__meta{
  padding:2px 9px;border:1px solid rgba(79,224,200,.36);border-radius:var(--pill);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--neon-400);
}

.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1.7fr 1fr;
  gap:var(--sp-4) var(--sp-3);
}
.footer-col{min-width:0}

.footer-eyebrow{
  display:flex;align-items:center;gap:10px;
  margin-bottom:14px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--neon-400);
}
.footer-eyebrow::after{content:"";flex:1 1 auto;height:1px;background:rgba(79,224,200,.22)}
.footer-eyebrow--sub{margin-top:var(--sp-3)}

.footer-flow{display:grid;gap:10px}
.footer-flow__item{display:flex;align-items:baseline;gap:10px;font-size:15px}
.footer-flow__item::after{content:"→";color:rgba(220,231,220,.28);font-size:13px}
.footer-flow__item:last-child::after{content:""}
.footer-flow__num{font-family:var(--font-mono);font-size:11px;letter-spacing:.08em;color:var(--clay-500)}
.footer-link{
  color:var(--rice-50);
  border-bottom:1px solid rgba(220,231,220,.26);
  padding-bottom:1px;
  transition:color .18s ease,border-color .18s ease;
}
.footer-link:hover{color:var(--neon-400);border-color:var(--neon-400)}

.footer-index{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 18px;font-size:14.5px;
}
.footer-index--legal{grid-template-columns:minmax(0,1fr);gap:8px}
.footer-index a{
  color:rgba(220,231,220,.84);
  border-bottom:1px solid transparent;
  transition:color .18s ease,border-color .18s ease;
}
.footer-index a:hover{color:var(--neon-400);border-bottom-color:var(--neon-400)}

.footer-note{font-size:14.5px;color:rgba(220,231,220,.78);margin-bottom:8px;line-height:1.7}
.footer-note--dim{color:rgba(220,231,220,.52);font-size:13.5px;margin-bottom:0}
.footer-ver{color:var(--neon-400);border-bottom:1px dashed rgba(79,224,200,.5);padding-bottom:1px}

.footer-contact{display:grid;gap:10px;font-size:14.5px}
.footer-contact li{display:grid;grid-template-columns:48px 1fr;gap:10px;align-items:baseline}
.footer-k{font-family:var(--font-mono);font-size:11px;letter-spacing:.1em;color:rgba(220,231,220,.5)}
.footer-value{color:var(--rice-50);word-break:break-word;line-height:1.65}

.footer-icp{
  margin-top:14px;font-size:12.5px;letter-spacing:.04em;color:rgba(220,231,220,.6);
}

.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 24px;
  margin-top:var(--sp-5);padding-top:var(--sp-3);
  border-top:1px solid rgba(220,231,220,.16);
}
.footer-copy{font-family:var(--font-mono);font-size:12.5px;letter-spacing:.03em;color:rgba(220,231,220,.6)}
.footer-copy--dim{color:rgba(220,231,220,.42)}

/* ---------- 7 响应式 ---------- */
@media (max-width:1080px){
  .site-nav{
    position:absolute;top:calc(100% + 14px);left:0;right:0;
    display:block;
    padding:0 var(--sp-2);
    border:1px solid rgba(79,224,200,.28);border-radius:22px;
    background:linear-gradient(180deg,var(--sabah-900),#0a241a);
    box-shadow:0 26px 52px -32px rgba(0,0,0,.95);
    max-height:0;overflow:hidden;opacity:0;visibility:hidden;
    transition:max-height .26s ease,opacity .2s ease,padding .26s ease,visibility 0s linear .28s;
  }
  .site-nav[data-open]{
    max-height:min(72vh,560px);overflow:auto;opacity:1;visibility:visible;
    padding:var(--sp-2);
    transition:max-height .3s ease,opacity .2s ease,padding .26s ease,visibility 0s;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{justify-content:flex-start;padding:13px 16px;border-radius:14px;font-size:15.5px}
  .nav-toggle{display:inline-flex}

  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid--3-9,.grid--4-8,.grid--5-7{grid-template-columns:minmax(0,1fr)}
  .index-rail{padding-left:0}
  .index-rail::before,.index-rail::after{display:none}
  .index-rail__inner{position:static}
  .grid--3{grid-template-columns:repeat(2,minmax(0,1fr))}
}

@media (max-width:760px){
  :root{--gutter:18px;--sp-5:38px;--sp-6:54px;--sp-7:66px}
  body{font-size:16.5px}
  .brand-text{font-size:20px}
  .brand-tag{display:none}
  .header-cta{display:none}
  .nav-toggle{margin-left:auto}
  .grid--2,.grid--3{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:var(--sp-4)}
  .footer-brand__name{font-size:22px}
  .frame{padding:var(--sp-3)}
  .frame::before{inset:7px}
}

@media (max-width:420px){
  .site-header{padding-top:10px}
  .header-inner{padding:6px 8px 6px 14px;gap:10px}
  .nav-toggle{padding:8px 12px;font-size:13px}
}

/* ---------- 8 动效与无障碍 ---------- */
:focus-visible{
  outline:2px solid var(--neon-400);
  outline-offset:2px;
  box-shadow:0 0 0 1px rgba(14,46,34,.5);
}

html.js .reveal{
  --rd:0ms;
  opacity:0;
  transform:translateY(6px);
  transition:opacity .26s ease var(--rd),transform .26s ease var(--rd);
}
html.js .reveal.is-in{opacity:1;transform:none}

@media (prefers-reduced-motion:no-preference){
  html{scroll-behavior:smooth}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  html.js .reveal{opacity:1;transform:none}
  .header-scale__fill{transition:none}
  html{scroll-behavior:auto}
}