:root{
  --orange:#ff7a18; --blue:#0066cc; --green:#0aa36c;
  --bg:#ffffff; --text:#0f1b2d; --muted:#5a6a84;
  --panel:#ffffff; --panel-2:#f5f7fb; --border:#dbe4f2;
  --shadow:0 8px 24px rgba(27,41,59,.12); --maxw:1160px;
  --brand-font: 'Noto Sans TC', 'Microsoft JhengHei', 'PingFang TC', system-ui, -apple-system, 'Segoe UI', Arial, 'Helvetica Neue', sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%;font-family:var(--brand-font);color:var(--text);background:var(--bg)}

/* Header */
header{background:var(--panel)}

/* Hero */
.hero{width:100%}
.hero-graphic{
  width:100vw; height:380px;
  background-image:url('/zh/images/hero_banner_orange_green_blue.png');
  background-size:cover; background-position:center; background-repeat:no-repeat;
  display:flex; align-items:center; justify-content:center;
}
.hero-text{
  font-size:42px; font-weight:800; color:#ffffff; text-shadow:0 2px 12px rgba(0,0,0,.35);
  letter-spacing:.5px; text-align:center;
}

/* Tabs */
nav.tabs{max-width:var(--maxw);margin:18px auto;padding:0 22px}
.tab-list{display:flex;gap:10px;background:#fff;border:1px solid var(--border);border-radius:12px;padding:8px;box-shadow:var(--shadow)}
.tab-link{flex:1;text-align:center;padding:12px 10px;border-radius:8px;color:var(--muted);font-weight:800;font-size:25px;text-decoration:none;border:1px solid transparent;font-family:var(--brand-font)}
.tab-link:hover{color:var(--text);border-color:var(--border)}
.tab-link.active{background:#2E6EEA;color:#fff !important;border-color:var(--border)}

/* Content */
main.content{max-width:var(--maxw);margin:0 auto 72px;padding:0 22px}

/* Tab content panels */
.tab-content{display:none;flex-direction:column;gap:18px}
.tab-content.active{display:flex}

/* Cards */
article.card,.card{
  display:flex;flex-direction:column;align-items:stretch;gap:8px;
  background:#fff;border:1px solid #e5e7eb;border-radius:12px;
  box-shadow:0 1px 4px rgba(0,0,0,.06);overflow:hidden;width:100%;
}
.card.accent-orange{border-left:4px solid var(--orange)}
.card.accent-blue{border-left:4px solid var(--blue)}
.card.accent-green{border-left:4px solid var(--green)}
.card-body{padding:16px}
.card-title{font-size:22px;font-weight:700;line-height:1.35;margin:4px 0 8px}
.card-text{font-size:19px;font-weight:700;line-height:1.6;color:#111827;margin:0 0 8px}
.card-media{
  display:block;width:min(100%,800px);height:200px;
  overflow:hidden;margin:3px auto 0;
}
.card-media img{width:100%;height:100%;object-fit:fill;display:block}

/* Flow arrows */
.flow-arrow{display:flex;justify-content:center;align-items:center;height:40px}
.flow-arrow svg{width:32px;height:40px}

/* Floating buttons */
.float-controls{position:fixed;right:16px;bottom:16px;display:flex;gap:8px;z-index:50}
.float-btn{
  padding:10px 12px;background:#2E6EEA !important;color:#fff !important;
  border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow);
  cursor:pointer;font-weight:700;white-space:nowrap;font-family:var(--brand-font);
}
.float-btn:hover{opacity:.9}

/* Brandbar */
.brandbar{display:grid;grid-template-columns:1fr 1fr 1fr;height:6px}
.brandbar span:nth-child(1){background:var(--orange)}
.brandbar span:nth-child(2){background:var(--blue)}
.brandbar span:nth-child(3){background:var(--green)}

/* Footer */
footer{background:#ffffff;color:#5a6a84;border-top:1px solid var(--border)}
.footer-inner{max-width:var(--maxw);margin:0 auto;padding:14px 22px;display:flex;align-items:center;justify-content:space-between}
.footer-links{display:flex;gap:12px;flex-wrap:wrap}
.footer-links a{color:#5a6a84;text-decoration:none;font-size:13px}
.footer-links a:hover{color:#0f1b2d}
.footer-note{font-size:12px;color:#8aa0bf}

/* Scroll progress bar */
#scroll-progress{padding:0}
#scroll-progress.sticky{position:sticky;top:0;z-index:50}
#scroll-progress.fixed{position:fixed;top:0;left:0;right:0;z-index:9999;padding:0;margin:0}
#scroll-progress .progress-wrap{margin:0 auto}
#scroll-progress .progress-track{height:12px;border-radius:999px;overflow:hidden;background:#e6f4ea;box-shadow:inset 0 0 0 1px #d1fae5}
#scroll-progress .progress-liquid{height:100%;width:0;border-radius:999px;background:linear-gradient(90deg,#22c55e 0%,#16a34a 50%,#22c55e 100%);background-size:200% auto;animation:flow 2s linear infinite}
@keyframes flow{from{background-position:0% 0}to{background-position:200% 0}}

@media (max-width:860px){.card-media{max-width:100%}}