:root{
  color-scheme: dark;
  --bg:#070a12; --bg2:#0b1020; --card:rgba(255,255,255,.045); --card2:rgba(255,255,255,.08);
  --text:#f3f6fc; --muted:rgba(243,246,252,.7); --line:rgba(255,255,255,.12);
  --blue:#7db4ff; --blue2:#5b8cff; --red:#ff6a5c;
  --r:22px; --maxw:1040px; --read:70ch;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{margin:0;background-color:var(--bg);color:var(--text);line-height:1.7;-webkit-font-smoothing:antialiased;
  font-family:system-ui,-apple-system,"Segoe UI",Arial,"Noto Sans TC",sans-serif;
  background-image:radial-gradient(1000px 600px at 12% -5%,rgba(125,180,255,.16),transparent 60%),radial-gradient(800px 500px at 100% 8%,rgba(255,106,92,.09),transparent 60%),linear-gradient(180deg,var(--bg2),var(--bg) 60%);
  background-repeat:no-repeat}
a{color:var(--blue)}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:8px}
.skip{position:absolute;left:-999px;top:8px;background:var(--blue);color:#06101f;padding:8px 14px;border-radius:999px;z-index:1001}
.skip:focus{left:12px}
.wrap{max-width:var(--maxw);margin:auto;padding:0 20px 72px}

.top{position:sticky;top:0;z-index:50;background:rgba(7,10,18,.8);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.top .in{max-width:var(--maxw);margin:auto;padding:11px 20px;display:flex;align-items:center;gap:16px;justify-content:space-between;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;color:var(--text)}
.brand b{font-weight:700;color:var(--blue)}
.mark{width:26px;height:26px;border-radius:9px;background:linear-gradient(135deg,var(--blue),var(--red));display:inline-block}
.top nav ul{list-style:none;display:flex;gap:2px;margin:0;padding:0;flex-wrap:wrap}
.top nav a{display:block;padding:6px 12px;border-radius:999px;font-size:14px;color:var(--muted);text-decoration:none}
.top nav a:hover{color:var(--text);background:rgba(255,255,255,.08)}

.kicker{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--blue)}
h1{font-size:clamp(30px,5vw,48px);line-height:1.12;margin:10px 0 0;font-weight:750;letter-spacing:-.01em}
h2{font-size:clamp(22px,3vw,28px);line-height:1.25;margin:0}
.lead{color:var(--muted);font-size:17px;max-width:62ch;margin:14px 0 0}
.meta{font-size:13px;color:var(--muted)}

.bloghead{padding:56px 0 8px}
.posts{display:grid;gap:22px;margin-top:30px}
.postcard{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:0;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:linear-gradient(180deg,var(--card2),var(--card));transition:transform .18s ease,border-color .18s ease}
.postcard:hover{transform:translateY(-3px);border-color:rgba(125,180,255,.45)}
.postcard .thumb{display:block;background:#000;min-height:220px}
.postcard .thumb img{width:100%;height:100%;object-fit:cover;display:block}
.postcard .body{padding:26px 28px;display:flex;flex-direction:column;gap:8px}
.postcard h2 a{color:var(--text);text-decoration:none}
.postcard h2 a:hover{color:var(--blue)}
.postcard p{margin:0;color:var(--muted);font-size:15px}
.more{margin-top:auto;font-weight:600;text-decoration:none;font-size:15px}
.tags{display:flex;gap:8px;flex-wrap:wrap}
.tag{font-size:12px;padding:2px 10px;border:1px solid var(--line);border-radius:999px;color:var(--muted)}
.empty{color:var(--muted)}
.about{margin-top:56px;padding:26px 28px;border:1px solid var(--line);border-radius:var(--r);background:var(--card)}
.about p{color:var(--muted);margin:8px 0 0;max-width:75ch}

.crumbs{font-size:13px;color:var(--muted);padding-top:22px}
.crumbs a{color:var(--muted);text-decoration:none}.crumbs a:hover{text-decoration:underline}
.post{max-width:var(--read);margin:0 auto}
.posthead{padding:26px 0 8px}
.posthead .tags{margin-top:14px}
.hero{margin:22px -40px 8px;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);box-shadow:0 30px 80px rgba(0,0,0,.55);background:#000}
.hero img{display:block;width:100%;height:auto}
.takeaways{margin:26px 0;padding:20px 24px;border:1px solid var(--line);border-left:3px solid var(--red);border-radius:16px;background:var(--card)}
.takeaways h2{font-size:15px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:650}
.takeaways ul{margin:10px 0 0;padding-left:20px}
.takeaways li{margin:4px 0}

.prose{font-size:17px}
.prose h2{margin:44px 0 10px;font-size:clamp(23px,3vw,29px)}
.prose h3{margin:30px 0 8px;font-size:20px}
.prose p{margin:14px 0}
.prose ul,.prose ol{padding-left:22px}
.prose li{margin:6px 0}
.prose img{max-width:100%;height:auto;border-radius:16px;border:1px solid var(--line)}
.prose figure{margin:26px 0}
.prose figcaption{font-size:13px;color:var(--muted);margin-top:8px;text-align:center}
.prose table{width:100%;border-collapse:collapse;font-size:15px;margin:20px 0}
.prose th,.prose td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.prose th{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.prose blockquote{margin:22px 0;padding:6px 18px;border-left:3px solid var(--blue);color:var(--muted)}
.prose code{background:rgba(255,255,255,.08);padding:1px 6px;border-radius:6px;font-size:.92em}
.shots{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin:26px 0}
.shots img{border-radius:18px}
.shots p{margin:0}

.faq{margin-top:48px}
.qa{border:1px solid var(--line);border-radius:16px;background:var(--card);margin-top:12px;padding:0 20px}
.qa summary{cursor:pointer;padding:15px 0;font-weight:620;list-style:none;display:flex;justify-content:space-between;gap:14px}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{content:"+";color:var(--blue);font-size:22px;line-height:1}
.qa[open] summary::after{content:"\2212"}
.qa p{margin:0 0 16px;color:rgba(255,255,255,.82);font-size:15.5px}

.cta{margin:48px 0 10px;text-align:center;padding:36px 22px;border-radius:26px;border:1px solid var(--line);background:radial-gradient(520px 200px at 50% 0%,rgba(125,180,255,.2),transparent 70%),linear-gradient(180deg,var(--card2),var(--card))}
.cta p{color:var(--muted);margin:8px auto 0;max-width:52ch}
.actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:20px}
.btn{display:inline-flex;align-items:center;padding:11px 22px;border-radius:999px;font-size:15px;font-weight:600;text-decoration:none;border:1px solid var(--line);background:var(--card2);color:var(--text);transition:transform .16s ease}
.btn:hover{transform:translateY(-1px)}
.btn.primary{border-color:transparent;background:linear-gradient(135deg,#9cc6ff,#5b8cff);color:#04101f}
.back{margin-top:30px}
.notfound{padding-top:40px}

footer{margin-top:60px;border-top:1px solid var(--line);padding-top:18px;font-size:13px;color:var(--muted);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
footer ul{list-style:none;display:flex;gap:16px;flex-wrap:wrap;margin:0;padding:0}
footer a{color:rgba(255,255,255,.82);text-decoration:none}footer a:hover{text-decoration:underline}

@media(max-width:860px){.postcard{grid-template-columns:1fr}.postcard .thumb{min-height:0;aspect-ratio:1200/630}.hero{margin-left:0;margin-right:0}}
@media(max-width:560px){.wrap{padding:0 16px 56px}.postcard .body{padding:20px}.prose{font-size:16.5px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}.postcard:hover,.btn:hover{transform:none}}