:root{
  --bg:#0b1220; --bg-soft:#111a2e; --card:#16213a; --text:#e8edf7; --text-dim:#a9b4cc;
  --accent:#4fd1c5; --accent-2:#7c9cff; --border:#2b3a5c; --code-bg:#0d1526;
  --radius:12px; --maxw:1080px; --chip-h:30px;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif;
  font-size:16px;line-height:1.85;letter-spacing:0.01em;
}
a{color:var(--accent-2);text-decoration:none;}
a:hover{text-decoration:underline;}
img{max-width:100%;display:block;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
p{word-break:normal;overflow-wrap:break-word;}
header.site-header{position:sticky;top:0;z-index:100;background:rgba(11,18,32,0.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--border);}
.nav-wrap{max-width:var(--maxw);margin:0 auto;padding:16px 24px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px;}
.logo{display:flex;align-items:baseline;gap:10px;white-space:nowrap;}
.logo .brand{font-weight:700;font-size:1.15rem;color:var(--text);}
.logo .sub{font-size:0.82rem;color:var(--accent);font-weight:500;}
.nav-toggle{display:none;background:none;border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:1.3rem;cursor:pointer;padding:4px 10px;}
nav.main-nav{display:flex;align-items:center;}
nav.main-nav ul{list-style:none;display:flex;align-items:center;gap:8px;margin:0;padding:0;flex-wrap:wrap;}
nav.main-nav ul li{display:flex;align-items:center;}
nav.main-nav a{color:var(--text-dim);font-size:0.92rem;font-weight:600;padding:8px 14px;border-radius:8px;white-space:nowrap;}
nav.main-nav a:hover, nav.main-nav a.active{color:var(--accent);background:var(--card);text-decoration:none;}
.phone-cta{background:var(--accent) !important;color:#04231f !important;font-weight:700;padding:9px 18px !important;border-radius:999px;}
.phone-cta:hover{opacity:0.88;text-decoration:none !important;}
.hero{padding:56px 0 40px;border-bottom:1px solid var(--border);}
.hero .eyebrow{display:inline-block;color:var(--accent);font-weight:700;font-size:0.8rem;letter-spacing:0.06em;border:1px solid var(--border);padding:5px 14px;border-radius:999px;margin-bottom:18px;}
.hero h1{font-size:1.9rem;line-height:1.6;margin:0 0 16px;font-weight:700;}
.hero h1 .highlight{color:var(--accent);}
.hero p.lead{color:var(--text-dim);font-size:1rem;max-width:720px;margin:0 0 22px;}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px;}
.btn{display:inline-block;padding:11px 22px;border-radius:10px;font-weight:700;font-size:0.9rem;border:1px solid var(--border);cursor:pointer;background:none;font-family:inherit;}
.btn.primary{background:var(--accent);color:#04231f;border-color:var(--accent);}
.btn.primary:hover{opacity:0.9;text-decoration:none;}
.btn.ghost{color:var(--text);}
.btn.ghost:hover{border-color:var(--accent);color:var(--accent);text-decoration:none;}
.section{padding:44px 0;border-bottom:1px solid var(--border);}
.section:last-of-type{border-bottom:none;}
.section-title{font-size:1.3rem;font-weight:700;margin:0 0 8px;padding-left:14px;border-left:4px solid var(--accent);}
.section-desc{color:var(--text-dim);margin:0 0 22px;font-size:0.92rem;max-width:720px;}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;}
.chip{display:inline-flex;align-items:center;gap:6px;height:var(--chip-h);line-height:calc(var(--chip-h) - 2px);padding:0 12px;border:1px solid var(--border);border-radius:8px;background:var(--code-bg);color:var(--text-dim);font-size:0.8rem;font-weight:600;white-space:nowrap;}
.chip.kw{cursor:pointer;user-select:none;transition:border-color .15s,color .15s;}
.chip.kw:hover{border-color:var(--accent);color:var(--accent);}
.chip.kw.active{background:var(--accent);color:#04231f;border-color:var(--accent);}
.toolbar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:14px;margin-bottom:22px;}
.toolbar .chip-row{flex:1;}
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.case-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:22px;display:flex;flex-direction:column;gap:12px;}
.case-card .case-date{color:var(--text-dim);font-size:0.78rem;font-weight:600;}
.case-card h3{margin:0;font-size:1.08rem;line-height:1.6;font-weight:700;}
.case-card h3 a{color:var(--text);}
.case-card h3 a:hover{color:var(--accent);text-decoration:none;}
.case-card p.excerpt{margin:0;color:var(--text-dim);font-size:0.9rem;line-height:1.8;}
.case-card .read-more{font-size:0.85rem;font-weight:700;color:var(--accent);margin-top:4px;}
.empty-state{color:var(--text-dim);padding:30px;text-align:center;border:1px dashed var(--border);border-radius:var(--radius);}
.skills-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.skill-box{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px;}
.skill-box h4{margin:0 0 12px;color:var(--accent-2);font-size:0.95rem;font-weight:700;}
.timeline{border-left:2px solid var(--border);padding-left:24px;margin-left:6px;}
.timeline-item{position:relative;margin-bottom:26px;}
.timeline-item::before{content:"";position:absolute;left:-29px;top:5px;width:9px;height:9px;border-radius:50%;background:var(--accent);}
.timeline-item .time{color:var(--accent);font-size:0.8rem;font-weight:700;}
.timeline-item h4{margin:5px 0 5px;font-size:1rem;font-weight:700;}
.timeline-item p{margin:0;color:var(--text-dim);font-size:0.88rem;}
.article-header{padding:44px 0 22px;border-bottom:1px solid var(--border);}
.breadcrumb{color:var(--text-dim);font-size:0.82rem;margin-bottom:18px;}
.breadcrumb a{color:var(--text-dim);}
.article-header h1{font-size:1.65rem;line-height:1.65;margin:0 0 14px;font-weight:700;}
.article-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;}
.article-body{padding:36px 0;max-width:780px;}
.article-body h2{font-size:1.25rem;font-weight:700;margin:36px 0 14px;padding-left:12px;border-left:4px solid var(--accent);}
.article-body h3{color:var(--accent-2);font-size:1.05rem;font-weight:700;margin:26px 0 10px;}
.article-body p{color:#d7deec;margin:0 0 18px;}
.article-body ul, .article-body ol{color:#d7deec;margin:0 0 18px;padding-left:24px;}
.article-body li{margin-bottom:10px;}
.article-body table{width:100%;border-collapse:collapse;margin:0 0 20px;font-size:0.9rem;}
.article-body table th, .article-body table td{border:1px solid var(--border);padding:10px 12px;text-align:left;color:#d7deec;}
.article-body table th{color:var(--accent-2);background:var(--card);}
.article-body blockquote{margin:22px 0;padding:16px 20px;border-left:4px solid var(--accent-2);background:var(--card);color:var(--text-dim);border-radius:0 10px 10px 0;font-style:italic;}
.article-body code{background:var(--code-bg);color:var(--accent);padding:2px 7px;border-radius:6px;font-size:0.88em;font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;}
.article-body pre{background:var(--code-bg);border:1px solid var(--border);border-radius:10px;padding:18px;overflow-x:auto;margin:0 0 20px;}
.article-body pre code{background:none;padding:0;color:#c9e9e6;}
.callout{background:var(--card);border:1px solid var(--accent);border-radius:12px;padding:18px 20px;margin:26px 0;}
.callout strong{color:var(--accent);}
.extend-box{background:var(--card);border:1px dashed var(--accent-2);border-radius:12px;padding:18px 20px;margin:26px 0;}
.extend-box strong{color:var(--accent-2);}
.analysis-box{background:var(--bg-soft);border:1px solid var(--border);border-radius:12px;padding:20px 22px;margin:26px 0;}
.analysis-box h4{margin:0 0 10px;color:var(--accent);font-size:1rem;font-weight:700;}
.bug-box{background:var(--code-bg);border:1px solid var(--border);border-left:4px solid #ff6b6b;border-radius:8px;padding:16px 18px;margin:18px 0;}
.bug-box h4{margin:0 0 8px;color:#ff6b6b;font-size:0.95rem;font-weight:700;}
.download-box{background:var(--card);border:1px dashed var(--border);border-radius:12px;padding:16px 18px;margin:26px 0;font-size:0.86rem;color:var(--text-dim);}
.article-nav{display:flex;justify-content:space-between;gap:16px;padding:30px 0;border-top:1px solid var(--border);flex-wrap:wrap;}
.article-nav a{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:14px 18px;color:var(--text);font-size:0.88rem;flex:1;min-width:220px;font-weight:600;}
.article-nav a:hover{border-color:var(--accent);text-decoration:none;}
footer.site-footer{border-top:1px solid var(--border);padding:32px 0;color:var(--text-dim);font-size:0.85rem;}
footer.site-footer .foot-flex{display:flex;justify-content:space-between;flex-wrap:wrap;gap:18px;}
footer.site-footer .foot-left div{margin-bottom:4px;}
footer.site-footer .foot-right{display:flex;gap:10px;align-items:center;flex-wrap:wrap;}
footer a{color:var(--text-dim);}
footer a:hover{color:var(--accent);}
@media (max-width: 860px){.case-grid{grid-template-columns:1fr;}.skills-grid{grid-template-columns:1fr;}}
@media (max-width: 620px){
  .hero h1{font-size:1.5rem;}
  nav.main-nav{width:100%;display:none;border-top:1px solid var(--border);margin-top:10px;padding-top:10px;}
  nav.main-nav.open{display:block;}
  nav.main-nav ul{flex-direction:column;align-items:flex-start;width:100%;}
  nav.main-nav ul li{width:100%;}
  nav.main-nav a{display:block;width:100%;}
  .nav-toggle{display:inline-block;}
  .article-header h1{font-size:1.3rem;}
  .toolbar{flex-direction:column;align-items:stretch;}
}