:root{
  --bg:#faf9f5;
  --paper:#ffffff;
  --text:#22262f;
  --muted:#5b6472;
  --line:#e6e2d6;
  --navy:#1b2333;
  --navy-2:#252f44;
  --accent:#b5432e;
  --accent-2:#8f3323;
  --cream:#f3ede0;
  --cream-line:#e6dcc4;
  --maxw:920px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang TC","Noto Sans TC","Microsoft JhengHei",-apple-system,BlinkMacSystemFont,sans-serif;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent);}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;}

/* ---------- nav ---------- */
header.nav{
  background:var(--navy);
  color:#fff;
  position:sticky;top:0;z-index:50;
  border-bottom:1px solid rgba(255,255,255,0.08);
}
.nav-inner{
  max-width:1080px;margin:0 auto;padding:14px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{font-weight:700;font-size:16px;letter-spacing:0.02em;color:#fff;text-decoration:none;white-space:nowrap;}
.brand span{color:#c98a78;}
.navlinks{display:flex;gap:22px;flex-wrap:wrap;font-size:14px;}
.navlinks a{color:#d7dae2;text-decoration:none;}
.navlinks a:hover{color:#fff;}
.navlinks a.current{color:#fff;border-bottom:2px solid var(--accent);}
.nav-cta{
  background:var(--accent);color:#fff;padding:9px 18px;border-radius:4px;
  font-size:14px;text-decoration:none;white-space:nowrap;font-weight:600;
}
.nav-cta:hover{background:var(--accent-2);}

/* ---------- hero ---------- */
.hero{
  background:var(--navy);
  color:#fff;
  padding:64px 0 72px;
}
.eyebrow{
  color:#c98a78;font-size:13px;letter-spacing:0.14em;text-transform:uppercase;
  margin:0 0 16px;font-weight:600;
}
.hero h1{
  font-size:34px;line-height:1.5;margin:0 0 20px;font-weight:700;
  max-width:720px;
}
.hero p.sub{
  color:#c3c8d4;font-size:16px;max-width:600px;margin:0 0 32px;
}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;}
.btn{
  display:inline-block;padding:13px 26px;border-radius:4px;font-size:15px;
  text-decoration:none;font-weight:600;border:1px solid transparent;
}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-2);}
.btn-outline{border:1px solid #4a5468;color:#e7e9ee;}
.btn-outline:hover{border-color:#8791a3;}

/* ---------- generic section ---------- */
section{padding:56px 0;}
section.alt{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
h2.sec-title{font-size:13px;letter-spacing:0.12em;text-transform:uppercase;color:var(--accent);margin:0 0 10px;font-weight:700;}
h2.sec-head{font-size:24px;margin:0 0 28px;font-weight:700;}
p.sec-lead{color:var(--muted);font-size:15px;max-width:680px;margin:0 0 32px;}

/* ---------- dual entry ---------- */
.dual{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.dual-card{
  background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:26px 24px;
}
.dual-card .tag{font-size:12px;color:var(--accent);font-weight:700;letter-spacing:0.06em;margin-bottom:10px;text-transform:uppercase;}
.dual-card h3{font-size:18px;margin:0 0 10px;}
.dual-card p{color:var(--muted);font-size:14px;margin:0 0 16px;}
.dual-card a.go{font-size:14px;font-weight:700;text-decoration:none;}
.dual-card a.go:after{content:" →";}

/* ---------- three blocks ---------- */
.three{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.three.four-up{grid-template-columns:repeat(2,1fr);}
@media (min-width:1000px){.three.four-up{grid-template-columns:repeat(4,1fr);}}
.blockcard{
  background:var(--paper);border:1px solid var(--line);border-top:3px solid var(--accent);
  border-radius:4px;padding:22px 20px;
}
.blockcard .k{font-size:12px;color:var(--muted);letter-spacing:0.08em;text-transform:uppercase;margin-bottom:8px;}
.blockcard h3{font-size:17px;margin:0 0 10px;}
.blockcard p{font-size:14px;color:var(--text);margin:0 0 14px;}
.blockcard a{font-size:13px;font-weight:700;text-decoration:none;}
.blockcard a:after{content:" →";}

/* ---------- evidence cards ---------- */
.evidence-card{
  background:var(--paper);border:1px solid var(--line);border-radius:6px;margin-bottom:18px;overflow:hidden;
}
.evidence-head{padding:16px 22px;border-bottom:1px solid var(--line);display:flex;align-items:baseline;justify-content:space-between;flex-wrap:wrap;gap:8px;}
.evidence-head h3{margin:0;font-size:16px;}
.evidence-head .stat{font-size:12px;color:var(--muted);}
.evidence-body{display:grid;grid-template-columns:1fr 1fr;}
.evidence-col{padding:18px 22px;font-size:13.5px;}
.evidence-col.before{background:#f7f4ec;color:#6b6350;}
.evidence-col.after{background:#fff;}
.evidence-col .lbl{font-size:11px;font-weight:700;letter-spacing:0.08em;text-transform:uppercase;margin-bottom:10px;}
.evidence-col.before .lbl{color:#9c8f68;}
.evidence-col.after .lbl{color:var(--accent);}
.evidence-row{margin-bottom:10px;}
.evidence-row b{display:block;font-size:12px;color:inherit;opacity:0.7;margin-bottom:2px;font-weight:600;}
@media (max-width:640px){.evidence-body{grid-template-columns:1fr;}}

/* ---------- services ---------- */
.tiers{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:6px;overflow:hidden;background:var(--paper);}
.tier{display:grid;grid-template-columns:90px 1fr 2fr 1fr;gap:16px;padding:16px 22px;align-items:center;border-bottom:1px solid var(--line);}
.tier:last-child{border-bottom:none;}
.tier .num{font-size:22px;font-weight:700;color:var(--accent);}
.tier .name{font-weight:700;font-size:14.5px;}
.tier .desc{font-size:13.5px;color:var(--muted);}
.tier .when{font-size:12.5px;color:var(--muted);background:var(--cream);border:1px solid var(--cream-line);padding:5px 10px;border-radius:3px;text-align:center;}
@media (max-width:700px){
  .tier{grid-template-columns:1fr;gap:4px;}
  .tier .when{justify-self:start;}
}

/* ---------- 遠端合作怎麼運作 ---------- */
.remote-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.remote-card{
  background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:24px 22px;
}
.remote-card .step-tag{
  display:inline-flex;align-items:center;justify-content:center;
  width:24px;height:24px;border-radius:50%;background:var(--navy);color:#fff;
  font-size:12px;font-weight:700;margin-bottom:12px;
}
.remote-card h3{font-size:16px;margin:0 0 10px;}
.remote-card p{font-size:14px;color:var(--muted);margin:0;}
.remote-card a{font-weight:700;text-decoration:none;}
@media (max-width:820px){.remote-grid{grid-template-columns:1fr;}}

/* ---------- guides ---------- */
.guides{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.guide-card{background:var(--paper);border:1px solid var(--line);border-radius:4px;padding:20px;}
.guide-card .num{font-size:12px;color:var(--muted);margin-bottom:8px;}
.guide-card h3{font-size:15.5px;margin:0 0 10px;line-height:1.5;}
.guide-card a{font-size:13px;font-weight:700;text-decoration:none;}
.guide-card a:after{content:" →";}

/* ---------- about ---------- */
.about{display:flex;gap:26px;align-items:flex-start;background:var(--cream);border:1px solid var(--cream-line);border-radius:6px;padding:28px 26px;}
.about .avatar{width:56px;height:56px;border-radius:50%;background:var(--navy);flex:0 0 auto;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:18px;}
.about p{margin:0;font-size:14.5px;color:#3c3626;}
.about b{color:var(--text);}

/* ---------- closing cta ---------- */
.closing{background:var(--navy);color:#fff;text-align:center;padding:64px 0;}
.closing h2{font-size:26px;margin:0 0 14px;font-weight:700;}
.closing p{color:#c3c8d4;font-size:15px;margin:0 0 28px;}

/* ---------- diagnose form ---------- */
.form-shell{background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:36px 34px;}
.form-shell h2{font-size:22px;margin:0 0 10px;}
.form-shell .lead{color:var(--muted);font-size:14.5px;margin:0 0 28px;max-width:600px;}
.frow{margin-bottom:20px;}
.frow label{display:block;font-size:13.5px;font-weight:700;margin-bottom:8px;}
.frow label .opt{color:var(--muted);font-weight:400;}
.frow label .req{color:var(--accent);}
.frow input[type=text], .frow textarea{
  width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:4px;
  font-family:inherit;font-size:14px;background:#fdfcf9;color:var(--text);
}
.frow textarea{min-height:74px;resize:vertical;}
.radiogrp{display:flex;gap:10px;flex-wrap:wrap;}
.radiogrp label{
  display:flex;align-items:center;gap:7px;font-weight:400;font-size:13.5px;
  border:1px solid var(--line);padding:9px 14px;border-radius:4px;cursor:pointer;background:#fdfcf9;
  margin-bottom:0;
}
.radiogrp input{margin:0;}
.form-submit{
  background:var(--accent);color:#fff;border:none;padding:14px 30px;border-radius:4px;
  font-size:15px;font-weight:700;cursor:pointer;font-family:inherit;
}
.form-submit:hover{background:var(--accent-2);}
.form-note{font-size:12.5px;color:var(--muted);margin-top:14px;}
.form-success{display:none;text-align:center;padding:40px 20px;}
.form-success h3{font-size:19px;margin:0 0 10px;}
.form-success p{color:var(--muted);font-size:14px;}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0;}

/* ---------- 分步表單（wizard） ---------- */
.wizard-progress{margin:0 0 32px;}
.wizard-progress .bar{
  height:6px;background:var(--line);border-radius:3px;overflow:hidden;margin-bottom:10px;
}
.wizard-progress .bar-fill{
  height:100%;background:var(--accent);border-radius:3px;transition:width 0.25s ease;
}
.wizard-progress .steps{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);}
.wizard-progress .steps span.done{color:var(--accent);font-weight:700;}
.wizard-progress .steps span.current{color:var(--text);font-weight:700;}

.wstep{display:none;}
.wstep.active{display:block;animation:wstep-in 0.2s ease;}
@keyframes wstep-in{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:translateY(0);}}
.wstep-title{font-size:13px;font-weight:700;color:var(--accent);text-transform:uppercase;letter-spacing:0.06em;margin:0 0 4px;}
.wstep-sub{font-size:13px;color:var(--muted);margin:0 0 22px;}

.wizard-nav{display:flex;justify-content:space-between;align-items:center;margin-top:8px;}
.wizard-nav .spacer{flex:1;}
.btn-ghost{
  background:none;border:1px solid var(--line);color:var(--muted);
  padding:12px 22px;border-radius:4px;font-size:14px;font-weight:600;cursor:pointer;font-family:inherit;
}
.btn-ghost:hover{border-color:#c7c2b3;color:var(--text);}
.btn-ghost:disabled{opacity:0;pointer-events:none;}
.form-submit:disabled{opacity:0.6;cursor:not-allowed;}

/* ---------- footer ---------- */
footer{background:var(--navy);color:#aab0bd;padding:44px 0 30px;font-size:13.5px;}
.foot-top{display:flex;justify-content:space-between;flex-wrap:wrap;gap:24px;padding-bottom:24px;border-bottom:1px solid rgba(255,255,255,0.1);margin-bottom:20px;}
.foot-links{display:flex;gap:20px;flex-wrap:wrap;}
.foot-links a{color:#c3c8d4;text-decoration:none;}
.foot-links a:hover{color:#fff;}
.foot-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;color:#7a8091;font-size:12.5px;}

.draft-banner{
  background:#f0c14b;color:#3c2f00;text-align:center;font-size:13px;padding:8px 12px;font-weight:600;
}

/* ================================================
   文章頁（實作指南 / 業務子頁）共用樣式
   ================================================ */
.article-hero{background:var(--navy);color:#fff;padding:40px 0 36px;}
.article-hero .crumb{color:#9aa2b3;font-size:13px;margin:0 0 14px;}
.article-hero .crumb a{color:#c3c8d4;text-decoration:none;}
.article-hero .crumb a:hover{color:#fff;}
.article-hero h1{font-size:28px;line-height:1.5;margin:0 0 14px;font-weight:700;max-width:760px;}
.article-hero .meta{color:#9aa2b3;font-size:13px;display:flex;gap:14px;flex-wrap:wrap;}

.article-body{max-width:720px;margin:0 auto;padding:48px 24px 20px;}
.article-body .lede{font-size:16.5px;color:var(--text);margin:0 0 32px;padding-bottom:28px;border-bottom:1px solid var(--line);}
.article-body .lede b{color:var(--accent);}

.toc{
  background:var(--paper);border:1px solid var(--line);border-radius:6px;
  padding:20px 24px;margin:0 0 36px;
}
.toc .toc-title{font-size:12px;letter-spacing:0.1em;text-transform:uppercase;color:var(--muted);font-weight:700;margin:0 0 12px;}
.toc ol{margin:0;padding-left:20px;}
.toc li{font-size:14px;margin-bottom:6px;}
.toc a{color:var(--text);text-decoration:none;}
.toc a:hover{color:var(--accent);}

.article-body h2{font-size:21px;margin:40px 0 16px;font-weight:700;scroll-margin-top:80px;}
.article-body h3{font-size:17px;margin:28px 0 12px;font-weight:700;}
.article-body p{font-size:15.5px;color:var(--text);margin:0 0 18px;}
.article-body ul, .article-body ol{font-size:15.5px;color:var(--text);margin:0 0 18px;padding-left:22px;}
.article-body li{margin-bottom:8px;}
.article-body strong{color:var(--text);}

.callout{
  border-radius:6px;padding:18px 22px;margin:0 0 24px;font-size:14.5px;
}
.callout-title{font-size:12px;font-weight:700;letter-spacing:0.06em;text-transform:uppercase;margin:0 0 8px;}
.callout.bad{background:#f7f4ec;border:1px solid var(--cream-line);}
.callout.bad .callout-title{color:#9c8f68;}
.callout.good{background:#fdf1ee;border:1px solid #f0d3cb;}
.callout.good .callout-title{color:var(--accent);}
.callout p{margin:0;font-size:14.5px;}
.callout p + p{margin-top:8px;}

.stepbox{
  background:var(--paper);border:1px solid var(--line);border-radius:6px;
  padding:22px 24px;margin:0 0 24px;counter-reset:step;
}
.stepbox .step{display:flex;gap:14px;margin-bottom:16px;}
.stepbox .step:last-child{margin-bottom:0;}
.stepbox .step-num{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--navy);color:#fff;
  font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.stepbox .step-text{font-size:14.5px;padding-top:2px;}
.stepbox .step-text b{display:block;color:var(--text);margin-bottom:2px;}
.stepbox .step-text span{color:var(--muted);}

.nextbox{
  background:var(--navy);color:#fff;border-radius:8px;padding:28px 26px;margin:44px 0 8px;
}
.nextbox h3{font-size:15px;color:#c98a78;margin:0 0 8px;text-transform:uppercase;letter-spacing:0.08em;}
.nextbox p{color:#dfe2e9;font-size:14.5px;margin:0 0 18px;}
.nextbox .btn{margin-right:10px;}

.article-nav{
  max-width:720px;margin:0 auto;padding:0 24px 60px;
  display:flex;justify-content:space-between;gap:16px;font-size:13.5px;flex-wrap:wrap;
}
.article-nav a{color:var(--muted);text-decoration:none;}
.article-nav a:hover{color:var(--accent);}

@media (max-width:820px){
  .dual{grid-template-columns:1fr;}
  .three{grid-template-columns:1fr;}
  .guides{grid-template-columns:1fr;}
  .hero h1{font-size:27px;}
  .stepbox .step{flex-direction:row;}
}