/* ── RESET & ROOT ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --kpi: #1565C0;
  --kpi-dark: #0d47a1;
  --kpi-light: #e3f2fd;
  --kpi-accent: #FFA000;
  --sub: #2E7D32;
  --sub-dark: #1b5e20;
  --sub-light: #e8f5e9;
  --sub-accent: #66BB6A;
  --dark: #0d1333;
  --text: #1a1a2e;
  --mid: #444466;
  --light: #888899;
  --bg: #f8f9fc;
  --border: #e0e4f0;
  --white: #fff;
  --shadow: 0 4px 24px rgba(0,0,0,0.07);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.12);
}
html { scroll-behavior: smooth; }
body { font-family: 'Noto Sans HK', sans-serif; color: var(--text); background: #fff; line-height: 1.6; }
img { max-width: 100%; display: block; }
a { text-decoration: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ── TOP BAR ── */
.top-bar { background: var(--dark); color: rgba(255,255,255,.75); font-size: 13px; padding: 8px 0; }
.top-bar .inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.top-bar a { color: rgba(255,255,255,.75); margin-left: 14px; transition: color .2s; }
.top-bar a:hover { color: var(--kpi-accent); }

/* ── NAVBAR ── */
.navbar { background: #fff; box-shadow: 0 2px 16px rgba(0,0,0,.08); position: sticky; top: 0; z-index: 200; }
.navbar .inner { display: flex; align-items: center; height: 68px; gap: 8px; }
.nav-logo { display: flex; align-items: center; gap: 8px; margin-right: 16px; }
.pill { padding: 5px 12px; border-radius: 20px; font-weight: 800; font-size: 13px; }
.pill.kpi { background: var(--kpi); color: #fff; }
.pill.sub { background: var(--sub); color: #fff; }
.pill.sep { background: none; color: var(--light); font-weight: 300; font-size: 18px; padding: 0 2px; }
.nav-divider { width: 1px; height: 22px; background: var(--border); margin: 0 6px; }
.nav-group { font-size: 11px; font-weight: 700; letter-spacing: 1.2px; text-transform: uppercase; padding: 3px 8px; border-radius: 4px; }
.nav-group.kpi { color: var(--kpi); background: var(--kpi-light); }
.nav-group.sub { color: var(--sub); background: var(--sub-light); }
.nav-links { display: flex; align-items: center; gap: 2px; list-style: none; }
.nav-links a { padding: 7px 12px; font-size: 14px; font-weight: 500; color: var(--mid); border-radius: 6px; transition: all .2s; }
.nav-links a:hover, .nav-links a.active { color: var(--kpi); background: var(--kpi-light); }
.nav-links a.sub-link:hover, .nav-links a.sub-link.active { color: var(--sub); background: var(--sub-light); }
.nav-right { margin-left: auto; display: flex; gap: 8px; }
.btn-wa { display: flex; align-items: center; gap: 6px; padding: 8px 16px; background: #25d366; border-radius: 8px; color: #fff; font-weight: 600; font-size: 14px; transition: all .2s; }
.btn-wa:hover { background: #1da851; }
.btn-tel { display: flex; align-items: center; gap: 6px; padding: 8px 16px; border: 2px solid var(--kpi); border-radius: 8px; color: var(--kpi); font-weight: 600; font-size: 14px; transition: all .2s; }
.btn-tel:hover { background: var(--kpi); color: #fff; }

/* ── SECTION HEADER ── */
.sec-head { text-align: center; margin-bottom: 52px; }
.sec-tag { display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; padding: 5px 14px; border-radius: 20px; margin-bottom: 14px; }
.sec-tag.kpi { background: var(--kpi-light); color: var(--kpi); }
.sec-tag.sub { background: var(--sub-light); color: var(--sub); }
.sec-tag.neutral { background: #eef0ff; color: var(--kpi); }
.sec-head h2 { font-size: clamp(24px,3.5vw,38px); font-weight: 800; margin-bottom: 12px; line-height: 1.25; }
.sec-head p { font-size: 15px; color: var(--mid); max-width: 560px; margin: 0 auto; line-height: 1.75; }
.sec-divider { width: 48px; height: 4px; border-radius: 2px; margin: 16px auto 0; }
.sec-divider.kpi { background: var(--kpi-accent); }
.sec-divider.sub { background: var(--sub-accent); }

/* ── BUTTONS ── */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 24px; border-radius: 10px; font-weight: 700; font-size: 14px; transition: all .2s; }
.btn.kpi-btn { background: var(--kpi); color: #fff; box-shadow: 0 4px 14px rgba(21,101,192,.3); }
.btn.kpi-btn:hover { background: var(--kpi-dark); transform: translateY(-2px); }
.btn.sub-btn { background: var(--sub); color: #fff; box-shadow: 0 4px 14px rgba(46,125,50,.3); }
.btn.sub-btn:hover { background: var(--sub-dark); transform: translateY(-2px); }
.btn.accent-btn { background: var(--kpi-accent); color: #fff; box-shadow: 0 4px 14px rgba(255,160,0,.35); }
.btn.accent-btn:hover { background: #e65100; transform: translateY(-2px); }
.btn.ghost-btn { background: rgba(255,255,255,.12); border: 2px solid rgba(255,255,255,.45); color: #fff; }
.btn.ghost-btn:hover { background: rgba(255,255,255,.22); }
.btn.outline-kpi { border: 2px solid var(--kpi); color: var(--kpi); background: transparent; }
.btn.outline-kpi:hover { background: var(--kpi); color: #fff; }

/* ── CARD ── */
.card { background: #fff; border-radius: 16px; box-shadow: var(--shadow); overflow: hidden; transition: all .3s; }
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }

/* ── ARTICLE CARD ── */
.art-card { background: #fff; border-radius: 14px; border: 1.5px solid var(--border); overflow: hidden; transition: all .25s; display: block; color: inherit; }
.art-card:hover { border-color: var(--kpi); transform: translateY(-3px); box-shadow: var(--shadow); }
.art-card.sub-card:hover { border-color: var(--sub); }
.art-thumb { height: 160px; display: flex; align-items: center; justify-content: center; font-size: 48px; }
.art-thumb.kpi-thumb { background: linear-gradient(135deg, var(--kpi) 0%, #42a5f5 100%); }
.art-thumb.sub-thumb { background: linear-gradient(135deg, var(--sub) 0%, #66bb6a 100%); }
.art-body { padding: 18px 20px; }
.art-cat { font-size: 11px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 8px; }
.art-cat.kpi-cat { color: var(--kpi); }
.art-cat.sub-cat { color: var(--sub); }
.art-body h3 { font-size: 15px; font-weight: 700; margin-bottom: 8px; line-height: 1.4; color: var(--text); }
.art-body p { font-size: 13px; color: var(--mid); line-height: 1.65; margin-bottom: 12px; }
.art-link { font-size: 13px; font-weight: 700; display: inline-flex; align-items: center; gap: 4px; }
.art-link.kpi-link { color: var(--kpi); }
.art-link.sub-link-c { color: var(--sub); }
.art-link::after { content: '→'; transition: transform .2s; }
.art-card:hover .art-link::after { transform: translateX(4px); }

/* ── STATS ── */
.stats-bar { background: var(--dark); }
.stats-grid { display: grid; grid-template-columns: repeat(4,1fr); }
.stat-item { padding: 28px 20px; text-align: center; border-right: 1px solid rgba(255,255,255,.1); transition: background .2s; }
.stat-item:last-child { border-right: none; }
.stat-item:hover { background: rgba(255,255,255,.05); }
.stat-num { font-size: 38px; font-weight: 900; line-height: 1; margin-bottom: 6px; }
.stat-num.kpi-num { color: var(--kpi-accent); }
.stat-num.sub-num { color: var(--sub-accent); }
.stat-label { font-size: 13px; color: rgba(255,255,255,.7); }

/* ── FOOTER ── */
.footer { background: var(--dark); color: rgba(255,255,255,.7); padding: 56px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px; }
.footer-brand p { font-size: 13px; line-height: 1.75; margin: 14px 0; }
.footer-social { display: flex; gap: 8px; }
.footer-social a { width: 34px; height: 34px; background: rgba(255,255,255,.1); border-radius: 8px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 14px; transition: background .2s; }
.footer-social a:hover { background: var(--kpi-accent); }
.footer-col h4 { color: #fff; font-size: 14px; font-weight: 700; margin-bottom: 14px; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 9px; }
.footer-col a { color: rgba(255,255,255,.65); font-size: 13px; transition: color .2s; }
.footer-col a:hover { color: var(--kpi-accent); }
.footer-contact { display: flex; align-items: flex-start; gap: 8px; margin-bottom: 10px; font-size: 13px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding: 18px 0; display: flex; justify-content: space-between; font-size: 12px; flex-wrap: wrap; gap: 8px; }

/* ── FLOAT ── */
.float-wa { position: fixed; bottom: 28px; right: 28px; width: 56px; height: 56px; background: #25d366; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 28px; box-shadow: 0 4px 20px rgba(37,211,102,.45); z-index: 999; transition: transform .2s; }
.float-wa:hover { transform: scale(1.1); }

/* ── BREADCRUMB ── */
.breadcrumb { padding: 14px 0; font-size: 13px; color: var(--light); }
.breadcrumb a { color: var(--mid); transition: color .2s; }
.breadcrumb a:hover { color: var(--kpi); }
.breadcrumb span { margin: 0 6px; }

/* ── RESPONSIVE ── */
@media (max-width: 960px) {
  .stats-grid { grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 700px) {
  .nav-links, .nav-group, .nav-divider { display: none; }
  .stats-grid { grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: 1fr; }
}