@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@300;400;500;700&family=Noto+Serif+TC:wght@400;500;600;700&display=swap');
:root{
  --g:#00ff80;
  --b:#0000ff;
  --b2:#7a83ff;
  --k:#000000;
  --w:#f2fff8;
  --serif:'Noto Serif TC',Georgia,'Songti SC',serif;
  --sans:'Noto Sans TC',system-ui,-apple-system,'Segoe UI',sans-serif;
  --mono:ui-monospace,'SFMono-Regular',Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{font-size:17px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--k);color:var(--w);font-family:var(--sans);font-weight:400;line-height:1.75;overflow-x:hidden;overflow-x:clip}
img{max-width:100%}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;line-height:1.2;margin:0;overflow-wrap:anywhere}
p{margin:0 0 1em}
a{color:var(--g)}
small{display:block;font-size:16px;font-weight:700;letter-spacing:.2em;color:var(--g)}
ul,ol,menu{margin:0;padding:0}
:focus-visible{outline:3px solid var(--g);outline-offset:2px}

/* 顶部两行 */
.hd{position:sticky;top:0;z-index:40;background:var(--k);border-bottom:4px solid var(--g)}
.tick{display:flex;align-items:center;gap:10px;margin:0;background:var(--g);color:#000;font-weight:700;font-size:16px;letter-spacing:.2em;padding:5px 14px}
.tick-sq{width:12px;height:12px;background:#000;display:block}
.brandrow{display:flex;align-items:center;gap:12px;padding:10px 14px;border-bottom:3px solid var(--b)}
.brand{font-family:var(--serif);font-weight:800;font-size:clamp(1.5rem,5.6vw,2.4rem);line-height:1.1;color:var(--g);letter-spacing:.01em}
.brand-sq{width:18px;height:18px;background:var(--b);border:3px solid var(--g);flex:0 0 auto}
.mark{width:34px;height:34px;object-fit:contain;flex:0 0 auto}
.nav{display:block;padding:8px 14px}
.menu-wrap{display:block}
.menu-sum{display:inline-flex;align-items:center;gap:10px;min-height:44px;padding:10px 16px;background:var(--b);color:#fff;border:3px solid var(--g);font-weight:700;letter-spacing:.16em;cursor:pointer;list-style:none}
.menu-sum::-webkit-details-marker{display:none}
.menu-sum::after{content:'+';font-family:var(--mono);font-size:1.1rem;line-height:1}
.menu-wrap[open] .menu-sum::after{content:'−'}
.menu{list-style:none;display:grid;margin-top:8px;border-top:3px solid var(--g)}
.menu a{display:flex;align-items:center;min-height:46px;padding:10px 14px;color:var(--g);text-decoration:none;font-weight:700;border-bottom:1px solid rgba(0,255,128,.35)}
.menu a:hover,.menu a:focus-visible{background:var(--g);color:#000}

/* 首屏 */
.hero{display:grid;grid-template-columns:1fr;border-bottom:4px solid var(--b);min-height:100svh}
.hero-txt{display:flex;flex-direction:column;justify-content:center;gap:16px;padding:clamp(22px,6vw,60px)}
.hero h1{font-size:clamp(2rem,8.6vw,4.8rem);font-weight:800;line-height:1.06;letter-spacing:-.01em;color:#fff}
.hero-d{margin:0;font-size:1.06rem;line-height:1.7;color:var(--g);max-width:46ch}
.hero-media{position:relative;overflow:hidden;border-top:4px solid var(--g);min-height:46vh;background:#07090a;display:block}
.hero-img{display:block;width:100%;height:130%;margin-top:-15%;object-fit:cover}
.hero-ph{display:flex;align-items:center;justify-content:center;min-height:46vh;padding:24px;font-family:var(--serif);font-weight:800;font-size:clamp(2rem,10vw,4rem);color:var(--b2);text-align:center}

/* 主体 */
.wrap{max-width:1280px;margin:0 auto}
.main-grid{display:grid;grid-template-columns:1fr;border-bottom:4px solid var(--g)}
.rail{padding:22px 14px;background:#05070a;border-bottom:3px solid var(--b)}
.rail small{margin-bottom:.45em}
.rail-t{font-size:1.35rem;color:#fff;margin:.1em 0 .5em}
.rail-list{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.rail-list a{display:flex;align-items:center;min-height:42px;padding:8px 12px;border:2px solid rgba(0,255,128,.5);color:var(--g);text-decoration:none;font-weight:700;font-size:16px}
.rail-list a:hover,.rail-list a:focus-visible{background:var(--b);color:#fff;border-color:#fff}
.body{padding:clamp(16px,3.4vw,44px);min-width:0}
.body > section{background:#070b09;border:3px solid rgba(0,255,128,.32);border-radius:18px;padding:clamp(18px,3.2vw,30px);margin:0 0 22px;scroll-margin-top:160px}
.body > section:last-child{margin-bottom:0}
.body h2{font-size:clamp(1.5rem,3.6vw,2.3rem);color:var(--g);margin:.1em 0 .55em}
.body h3{font-size:clamp(1.2rem,2.4vw,1.5rem);color:#fff;margin:1.1em 0 .4em}
.body h4{font-size:1.05rem;color:var(--b2);margin:1em 0 .3em}
.body p,.body li,.body td,.body th{font-size:1.02rem;line-height:1.85;overflow-wrap:anywhere}
.body ul,.body ol{padding-left:1.35em;margin:0 0 1em}
.body li{margin:.35em 0}
.body a{color:var(--g);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}
.body a:hover{background:var(--g);color:#000;text-decoration:none}
.body strong{color:#fff;background:rgba(0,0,255,.55);padding:0 3px}
.body small{color:var(--g);margin-bottom:.35em}
.body blockquote{margin:1em 0;padding:6px 0 6px 16px;border-left:6px solid var(--b);color:#c9ffe4}
.body img{display:block;height:auto;margin:1em 0;border:3px solid var(--g)}
.body table{width:100%;border-collapse:collapse;margin:1em 0;font-size:16px}
.body th,.body td{border:2px solid rgba(0,255,128,.4);padding:10px;text-align:left}
.body th{background:rgba(0,0,255,.35);color:#fff}
.body hr{border:0;border-top:3px solid var(--b);margin:26px 0}
.body code,.body pre{font-family:var(--mono);background:#0d1216;border:2px solid rgba(0,255,128,.25)}
.body code{padding:1px 5px}
.body pre{padding:12px;overflow:auto}

/* 页脚 */
.ft{border-top:6px solid var(--g);background:var(--k)}
.ft-top{padding:22px 16px;border-bottom:3px solid var(--b)}
.ft-mark{margin:0;font-family:var(--serif);font-weight:800;font-size:clamp(2.1rem,12vw,7rem);line-height:.95;letter-spacing:-.02em;color:var(--g);word-break:break-all}
.ft-col{padding:20px 16px;border-bottom:2px solid rgba(0,255,128,.22)}
.ft-col h3{margin:.15em 0 .8em;font-size:1.1rem;color:#fff}
.ft-col ul{list-style:none}
.ft-col a{display:flex;align-items:center;min-height:44px;padding:8px 0;color:#fff;font-weight:700;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.16)}
.ft-col a:hover,.ft-col a:focus-visible{background:var(--g);color:#000;padding-left:8px}
.ft-p{margin:0;color:#c9ffe4;line-height:1.7}
.ft-base{padding:16px 16px 26px;border-top:3px solid var(--g)}
.ft-base p{margin:0;font-size:16px;color:#9dffcd;letter-spacing:.04em}

.totop{position:fixed;right:12px;bottom:12px;z-index:30;display:inline-flex;align-items:center;min-height:48px;padding:12px 16px;background:var(--g);color:#000;font-weight:800;text-decoration:none;border:3px solid #000}
.totop:hover{background:#000;color:var(--g);border-color:var(--g)}

@media (min-width:880px){
  .hero{grid-template-columns:1.05fr .95fr;min-height:100vh}
  .hero-media{border-top:0;border-left:4px solid var(--b)}
  .hero-ph{min-height:70vh}
  .main-grid{grid-template-columns:248px 1fr}
  .rail{border-bottom:0;border-right:4px solid var(--b);padding:28px 18px}
  .rail-list{flex-direction:column;flex-wrap:nowrap}
  .rail-list a{min-height:44px}
  .body > section{scroll-margin-top:150px}
}
@media (min-width:900px){
  .nav{padding:0 14px}
  .menu-sum{display:none}
  .menu-wrap:not([open]) > .menu{display:flex}
  .menu{display:flex;flex-wrap:wrap;border-top:0;margin-top:0}
  .menu li{border-right:2px solid rgba(0,255,128,.35)}
  .menu a{border-bottom:0;padding:14px 18px}
}
@media (min-width:1024px){
  .body > section:nth-child(odd){margin-right:7%}
  .body > section:nth-child(even){margin-left:5%}
}
@media (min-width:760px){
  .ft{display:grid;grid-template-columns:repeat(4,1fr)}
  .ft-top,.ft-base{grid-column:1/-1}
  .ft-col{border-right:2px solid rgba(0,255,128,.22)}
  .ft-mark{font-size:clamp(3rem,11vw,7rem)}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
}

button[aria-expanded]{min-width:44px;min-height:44px}