@charset "utf-8";

:root{
  --ink:#192617;
  --deep:#0a1310;
  --neon:#87ff71;
  --cyan:#01cdfe;
  --pink:#ff71ce;
  --purple:#b967ff;
  --text:#d9eede;
  --dim:#a6c3ad;
  --line:rgba(135,255,113,.2);
  --glass:rgba(255,255,255,.06);
  --r:10px;
}

*,*::before,*::after{box-sizing:border-box}

html{
  scroll-behavior:smooth;
  -webkit-text-size-adjust:100%;
}

body{
  margin:0;
  font-family:"Noto Sans TC",system-ui,-apple-system,"PingFang TC","Microsoft JhengHei",sans-serif;
  font-size:17px;
  line-height:1.8;
  color:var(--text);
  background:
    radial-gradient(1100px 520px at 84% -8%,rgba(255,113,206,.22),transparent 62%),
    radial-gradient(900px 500px at 6% 6%,rgba(1,205,254,.16),transparent 58%),
    linear-gradient(180deg,#0a1310 0%,#0d1a13 44%,#192617 100%);
  background-attachment:fixed;
  overflow-x:hidden;
}

h1,h2,h3,h4{
  font-family:"Noto Serif TC",Georgia,"Songti TC",serif;
  line-height:1.32;
  letter-spacing:.015em;
  margin:0 0 .55em;
  font-weight:600;
}

p{margin:0 0 1em}
a{color:var(--neon);text-decoration:none}
a:hover{color:#eaffdf}
img{max-width:100%}

a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
}

/* 背景层次 */
.scan{
  position:fixed;
  inset:0;
  z-index:4;
  pointer-events:none;
  background:repeating-linear-gradient(180deg,rgba(0,0,0,.22) 0 1px,transparent 1px 3px);
  opacity:.5;
}

.grid-floor{
  position:fixed;
  left:-20%;
  right:-20%;
  bottom:0;
  height:44vh;
  z-index:0;
  pointer-events:none;
  opacity:.45;
  transform:perspective(300px) rotateX(71deg);
  transform-origin:bottom center;
  background-image:
    linear-gradient(rgba(1,205,254,.45) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,113,206,.32) 1px,transparent 1px);
  background-size:100% 44px,70px 100%;
  -webkit-mask-image:linear-gradient(180deg,transparent,#000 62%);
  mask-image:linear-gradient(180deg,transparent,#000 62%);
}

/* 顶栏 */
.bar{
  position:sticky;
  top:0;
  z-index:30;
  display:flex;
  align-items:center;
  gap:10px 18px;
  flex-wrap:wrap;
  padding:10px clamp(12px,4vw,40px);
  background:linear-gradient(180deg,rgba(10,19,16,.94),rgba(10,19,16,.62));
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:9px;
  min-height:44px;
  padding:4px 6px;
  color:#f2fff0;
  font-family:"Noto Serif TC",Georgia,serif;
  font-size:19px;
  letter-spacing:.06em;
  white-space:nowrap;
}
.brand-txt{
  background:linear-gradient(96deg,var(--neon),var(--cyan) 60%,var(--pink));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.brand-img{border-radius:8px;display:block}
.brand-dot{
  width:14px;
  height:14px;
  border-radius:50%;
  background:radial-gradient(circle at 32% 30%,var(--neon),var(--cyan) 55%,var(--purple));
  box-shadow:0 0 14px rgba(135,255,113,.8);
}

.nav{margin-left:4px;min-width:0}
.nav p{
  display:flex;
  flex-wrap:wrap;
  gap:2px;
  margin:0;
}
.nav a{
  display:inline-block;
  padding:11px 10px;
  min-height:44px;
  font-size:16px;
  color:var(--dim);
  border-radius:8px;
  white-space:nowrap;
  transition:color .18s,background .18s,text-shadow .18s;
}
.nav a:hover{
  color:#f4fff0;
  background:rgba(135,255,113,.1);
  text-shadow:0 0 12px rgba(135,255,113,.75);
}

.cta{
  margin-left:auto;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:10px 18px;
  font-size:16px;
  color:#0a1310;
  font-weight:700;
  border-radius:var(--r);
  background:linear-gradient(100deg,var(--neon),var(--cyan));
  box-shadow:0 0 18px rgba(1,205,254,.35);
  transition:box-shadow .2s,transform .2s;
}
.cta:hover{
  color:#0a1310;
  transform:translateY(-1px);
  box-shadow:0 0 26px rgba(135,255,113,.6);
}

/* 首屏 */
.hero{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:1.02fr .98fr;
  align-items:center;
  gap:clamp(18px,4vw,56px);
  min-height:100vh;
  min-height:100svh;
  padding:clamp(26px,6vw,64px) clamp(14px,5vw,60px);
}
.hero::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:linear-gradient(90deg,transparent,var(--cyan),var(--pink),transparent);
  opacity:.6;
}

.hero-copy{text-align:center;min-width:0}
.hero h1{
  font-size:clamp(28px,6.2vw,56px);
  margin:0 0 .5em;
  background:linear-gradient(96deg,var(--neon),var(--cyan) 48%,var(--pink));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  filter:drop-shadow(0 0 20px rgba(1,205,254,.32));
}
.hero-lede{
  max-width:32em;
  margin:0 auto 1.6em;
  color:var(--dim);
  font-size:16px;
}
.hero-btn{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:11px 22px;
  font-size:16px;
  border:1px solid rgba(135,255,113,.55);
  border-radius:var(--r);
  color:var(--neon);
  background:rgba(135,255,113,.07);
  transition:background .2s,box-shadow .2s;
}
.hero-btn:hover{background:rgba(135,255,113,.16);box-shadow:0 0 20px rgba(135,255,113,.4)}

.hero-art{
  position:relative;
  align-self:stretch;
  min-height:34vh;
  overflow:hidden;
  border-radius:var(--r);
  border:1px solid rgba(135,255,113,.26);
  background:
    radial-gradient(circle at 50% 66%,#ff8fd6 0 7%,transparent 7.5%),
    radial-gradient(circle at 50% 66%,#b967ff 7.5% 17%,transparent 17.5%),
    radial-gradient(circle at 50% 66%,#01cdfe 17.5% 27%,transparent 27.5%),
    linear-gradient(180deg,#2a1b3d,#101a16 70%);
  box-shadow:inset 0 0 70px rgba(1,205,254,.24);
}
.hero-img{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
  will-change:transform;
}

/* 正文骨架 */
.wrap{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:minmax(0,1fr) 296px;
  gap:clamp(18px,3vw,40px);
  max-width:1180px;
  margin:0 auto;
  padding:clamp(24px,5vw,60px) clamp(13px,4vw,30px);
}

.prose{
  position:relative;
  padding:clamp(17px,3.4vw,34px);
  border:1px solid rgba(135,255,113,.16);
  border-radius:var(--r);
  background:linear-gradient(158deg,rgba(255,255,255,.075),rgba(255,255,255,.02));
  backdrop-filter:blur(9px);
  -webkit-backdrop-filter:blur(9px);
  overflow-wrap:break-word;
}

.prose > div{
  scroll-margin-top:108px;
}
.prose > div + div{
  margin-top:2.1em;
  padding-top:2.1em;
  border-top:1px dashed rgba(1,205,254,.28);
}
.prose > div:first-child{margin-top:0}

.prose h2{
  font-size:clamp(21px,3.4vw,29px);
  color:#f0fff0;
  text-shadow:0 0 16px rgba(135,255,113,.32);
}
.prose h2 span,.prose h3 span{
  display:inline;
  background-image:linear-gradient(180deg,transparent 74%,rgba(1,205,254,.42) 74%,rgba(1,205,254,.42) 90%,transparent 90%);
}
.prose h3{
  font-size:clamp(18px,2.6vw,22px);
  color:#e7fbe6;
}
.prose p{color:#d5ecd8}
.prose ul,.prose ol{padding-left:1.35em;margin:0 0 1.1em}
.prose li{margin:.3em 0}
.prose li::marker{color:var(--cyan)}
.prose strong{color:#f4fff1}
.prose a{
  color:var(--cyan);
  border-bottom:1px solid rgba(1,205,254,.45);
}
.prose a:hover{color:var(--neon);border-bottom-color:var(--neon)}
.prose blockquote{
  margin:1.2em 0;
  padding:.7em 1em;
  border-left:3px solid var(--purple);
  border-radius:0 var(--r) var(--r) 0;
  background:rgba(185,103,255,.1);
  color:#e9dcff;
}
.prose table{width:100%;border-collapse:collapse;font-size:16px;display:block;overflow-x:auto}
.prose th,.prose td{border:1px solid rgba(135,255,113,.22);padding:8px 10px;text-align:left}
.prose th{background:rgba(1,205,254,.12);color:#eafff8}
.prose code{
  font-family:ui-monospace,Menlo,Consolas,monospace;
  font-size:15px;
  padding:1px 5px;
  border-radius:5px;
  background:rgba(135,255,113,.14);
  color:#ddffd8;
}
.prose pre{
  padding:14px;
  border-radius:var(--r);
  background:rgba(0,0,0,.42);
  border:1px solid rgba(1,205,254,.24);
  overflow-x:auto;
}
.prose pre code{background:none;padding:0}
.prose img{border-radius:var(--r);border:1px solid var(--line)}
.prose hr{border:0;height:1px;background:linear-gradient(90deg,transparent,var(--cyan),transparent);margin:1.8em 0}

/* 侧栏 */
.side{
  position:sticky;
  top:96px;
  align-self:start;
  display:grid;
  gap:14px;
}
.panel{
  padding:15px 16px 17px;
  border:1px solid rgba(1,205,254,.22);
  border-radius:var(--r);
  background:linear-gradient(160deg,rgba(1,205,254,.1),rgba(255,255,255,.03));
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}
.panel h3{
  margin:0 0 .7em;
  font-size:17px;
  color:#eafffa;
  letter-spacing:.1em;
}
.panel h3 > span{
  display:inline-block;
  padding-bottom:2px;
  border-bottom:2px solid rgba(255,113,206,.6);
}
.toc{
  list-style:none;
  margin:0;
  padding:0;
  counter-reset:t;
  font-size:16px;
}
.toc li{counter-increment:t}
.toc a{
  display:block;
  padding:10px 4px;
  min-height:42px;
  color:var(--dim);
  border-bottom:1px solid rgba(255,255,255,.07);
  transition:color .16s,padding-left .16s;
}
.toc a::before{
  content:counter(t,decimal-leading-zero);
  font-family:"Noto Serif TC",Georgia,serif;
  color:rgba(135,255,113,.7);
  margin-right:.6em;
  font-size:14px;
}
.toc li:last-child a{border-bottom:0}
.toc a:hover{color:var(--neon);padding-left:9px}
.top-link{
  display:inline-flex;
  align-items:center;
  min-height:42px;
  padding:8px 12px;
  border:1px dashed rgba(135,255,113,.5);
  border-radius:var(--r);
  color:var(--neon);
  font-size:16px;
}
.top-link:hover{background:rgba(135,255,113,.12)}
.panel-brand{
  margin:0;
  font-family:"Noto Serif TC",Georgia,serif;
  color:#f0fff0;
  font-size:16px;
  letter-spacing:.04em;
}

/* 页脚 */
.foot{
  position:relative;
  z-index:1;
  margin-top:clamp(28px,6vw,70px);
  padding:clamp(26px,5vw,52px) clamp(14px,4vw,40px) 26px;
  border-top:1px solid rgba(1,205,254,.24);
  background:linear-gradient(180deg,rgba(10,19,16,.55),rgba(10,19,16,.95));
}
.foot-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:clamp(16px,3vw,38px);
  max-width:1180px;
  margin:0 auto;
}
.foot dl{margin:0}
.foot dt{
  font-family:"Noto Serif TC",Georgia,serif;
  font-size:15px;
  letter-spacing:.14em;
  color:var(--neon);
  margin-bottom:.5em;
  padding-bottom:6px;
  border-bottom:1px solid rgba(135,255,113,.24);
}
.foot dd{margin:0;color:var(--dim);font-size:16px}
.foot-links{display:flex;flex-wrap:wrap;gap:0 16px}
.foot a{
  display:inline-flex;
  align-items:center;
  min-height:42px;
  padding:6px 0;
  color:var(--dim);
}
.foot a:hover{color:var(--neon)}

.sub{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  max-width:1180px;
  margin:26px auto 0;
  padding:14px 16px;
  border:1px solid rgba(255,113,206,.28);
  border-radius:var(--r);
  background:linear-gradient(120deg,rgba(255,113,206,.12),rgba(1,205,254,.08));
}
.sub-label{
  font-family:"Noto Serif TC",Georgia,serif;
  letter-spacing:.1em;
  color:#ffe6fa;
  font-size:16px;
}
.sub-input{
  flex:1 1 190px;
  min-height:44px;
  padding:10px 13px;
  font-size:16px;
  font-family:inherit;
  color:#f2fff0;
  border-radius:var(--r);
  border:1px solid rgba(255,255,255,.22);
  background:rgba(0,0,0,.34);
}
.sub-input::placeholder{color:#9db8a4}
.sub-btn{
  min-height:44px;
  padding:10px 22px;
  font-size:16px;
  font-family:inherit;
  font-weight:700;
  color:#0a1310;
  border:0;
  border-radius:var(--r);
  background:linear-gradient(100deg,var(--pink),var(--purple));
  cursor:pointer;
}
.sub-btn:hover{box-shadow:0 0 20px rgba(255,113,206,.6)}

.copy{
  max-width:1180px;
  margin:20px auto 0;
  font-size:15px;
  color:#8aa892;
  letter-spacing:.04em;
}

/* 滚动显现 */
.rv{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .6s ease,transform .6s ease;
}
.rv.in{opacity:1;transform:none}

/* 断点 */
@media (max-width:900px){
  .wrap{grid-template-columns:minmax(0,1fr)}
  .side{position:static;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));order:2}
}

@media (max-width:720px){
  .bar{gap:6px 10px}
  .nav{order:3;width:100%;margin-left:0;border-top:1px solid rgba(255,255,255,.08);padding-top:4px}
  .nav p{gap:0}
  .nav a{padding:11px 9px;font-size:15px}
  .cta{margin-left:auto;padding:10px 14px;font-size:15px}
  .hero{grid-template-columns:minmax(0,1fr);min-height:auto;padding:26px 15px 34px;gap:22px}
  .hero-copy{order:1}
  .hero-art{order:2;min-height:30vh}
  .hero-lede{font-size:16px}
  .foot-grid{grid-template-columns:minmax(0,1fr)}
}

@media (min-width:901px){
  .hero-copy{padding-right:6px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .rv{opacity:1;transform:none;transition:none}
  .hero-img{transform:none!important}
  .scan{opacity:.35}
  *{animation-duration:.001ms!important;animation-iteration-count:1!important}
}

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