:root {
  --ink: #111827;
  --ink-2: #4b5563;
  --ink-3: #5b6270;
  --line: #e5e7eb;
  --canvas: #f6f6f4;
  --card: #ffffff;
  --leaf: #8a1c1c;
  --jade: #007f63;
  --jade-ink: #00634d;
  --jade-tint: #e2f3ee;
  --radius: 18px;
  --max: 760px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font: 16px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang HK", "Noto Sans HK", "Microsoft JhengHei", sans-serif;
}
a { color: var(--jade-ink); text-underline-offset: 3px; }
a:hover { color: var(--jade); }

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 16px; }

/* Header */
.top { position: sticky; top: 0; z-index: 10; background: rgba(246, 246, 244, 0.92); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; gap: 12px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 650; letter-spacing: -0.01em; }
.brand svg { width: 22px; height: 22px; color: var(--leaf); flex: none; }
.lang { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; background: var(--card); }
.lang button { appearance: none; border: 0; background: none; padding: 6px 12px; font: inherit; font-size: 14px; color: var(--ink-2); cursor: pointer; min-height: 36px; }
.lang button[aria-pressed="true"] { background: var(--ink); color: #fff; }

/* Language switching: without JS both languages show; with JS only the chosen one. */
html.js [data-l]:not([data-l="active"]) { display: none !important; }

main { padding: 40px 0 56px; }
h1 { font-size: clamp(30px, 6vw, 44px); line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 14px; }
h2 { font-size: 22px; line-height: 1.3; margin: 40px 0 10px; letter-spacing: -0.01em; }
h3 { font-size: 17px; margin: 24px 0 6px; }
p, li { color: var(--ink-2); }
.lead { font-size: 19px; color: var(--ink-2); max-width: 36em; }
.muted { color: var(--ink-3); font-size: 14px; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.app { display: flex; gap: 18px; align-items: flex-start; }
.app img { width: 72px; height: 72px; border-radius: 17px; flex: none; box-shadow: 0 1px 2px rgba(17, 24, 39, 0.06), 0 6px 16px rgba(17, 24, 39, 0.08); }
.app h3 { margin: 0 0 2px; font-size: 19px; }
.app .tag { display: inline-block; font-size: 12px; font-weight: 600; color: var(--jade-ink); background: var(--jade-tint); border-radius: 999px; padding: 2px 10px; margin-bottom: 8px; }
.links { display: flex; flex-wrap: wrap; gap: 8px 16px; margin-top: 10px; font-size: 15px; }

.note { border-left: 3px solid var(--jade); background: var(--jade-tint); padding: 12px 14px; border-radius: 8px; color: var(--ink); font-size: 15px; }
.legal h2 { font-size: 19px; margin-top: 32px; }
.legal ul { padding-left: 1.2em; }
.legal table { width: 100%; border-collapse: collapse; font-size: 14px; margin: 10px 0; }
.legal th, .legal td { text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); padding: 8px 6px; }
.legal .table-scroll { overflow-x: auto; }

footer { border-top: 1px solid var(--line); padding: 24px 0 40px; font-size: 14px; color: var(--ink-3); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 8px 18px; justify-content: space-between; }
footer a { color: var(--ink-2); }

@media (max-width: 480px) {
  main { padding-top: 28px; }
  .app { flex-direction: column; }
}