:root {
    --hksev-blue:#0f4da8;
    --hksev-blue-dark:#0b3c86;
    --hksev-blue-light:#eef5ff;
    --hksev-green:#25D366;
    --hksev-red:#e53935;
    --hksev-text:#18304f;
    --hksev-muted:#5c6f85;
    --hksev-border:#d8e5f5;
    --hksev-bg:#f7fbff;
    --hksev-radius:22px;
    --hksev-shadow:0 10px 28px rgba(16,77,168,.12);
  }
  * { box-sizing:border-box; }
  html { scroll-behavior:smooth; }
  body { margin:0; font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif; color:var(--hksev-text); background:linear-gradient(180deg,#f8fbff 0%,#ffffff 28%,#f7fbff 100%); line-height:1.65; }
  img { max-width:100%; display:block; }
  a { color:inherit; text-decoration:none; }
  .hksev-wrap { width:min(1180px, calc(100% - 28px)); margin:0 auto; }
  .hksev-section { padding:44px 0; }
  .hksev-badge { display:inline-flex; align-items:center; gap:8px; padding:8px 14px; border-radius:999px; background:#eaf2ff; color:var(--hksev-blue-dark); font-weight:800; font-size:14px; }
  .hksev-eyebrow { display:inline-block; color:var(--hksev-blue); font-weight:800; margin-bottom:10px; }
  .hksev-title { margin:0 0 12px; font-size:clamp(28px,5vw,46px); line-height:1.15; color:var(--hksev-blue-dark); }
  .hksev-subtitle { margin:0; color:var(--hksev-muted); font-size:16px; }
  .hksev-card { background:#fff; border:1px solid var(--hksev-border); border-radius:var(--hksev-radius); box-shadow:var(--hksev-shadow); }
  .hksev-hero { padding:20px 0 8px; }
  .hksev-hero-inner { display:grid; grid-template-columns:1.1fr .9fr; gap:26px; align-items:center; }
  .hksev-hero-copy { padding:8px 4px; }
  .hksev-hero-copy p { margin:0 0 14px; color:var(--hksev-muted); font-size:17px; }
  .hksev-cta-row { display:flex; flex-wrap:wrap; gap:14px; margin:22px 0 16px; }
  .hksev-btn { display:inline-flex; align-items:center; justify-content:center; gap:10px; min-height:54px; padding:14px 22px; border-radius:16px; font-size:18px; font-weight:800; border:2px solid transparent; transition:.2s ease; }
  .hksev-btn:hover { transform:translateY(-1px); }
  .hksev-btn-primary { background:var(--hksev-blue); color:#fff; box-shadow:0 10px 22px rgba(15,77,168,.25); }
  .hksev-btn-whatsapp { background:var(--hksev-green); color:#fff; box-shadow:0 10px 22px rgba(37,211,102,.22); }
  .hksev-btn-secondary { background:#fff; color:var(--hksev-blue-dark); border-color:var(--hksev-border); }
  .hksev-trust-row { display:grid; grid-template-columns:repeat(4,1fr); gap:12px; margin-top:18px; }
  .hksev-trust-item { padding:16px 14px; text-align:center; }
  .hksev-trust-item strong { display:block; font-size:16px; color:var(--hksev-blue-dark); }
  .hksev-trust-item span { display:block; color:var(--hksev-muted); font-size:14px; }
  .hksev-hero-media .hksev-card { overflow:hidden; }
  .hksev-hero-media img { width:100%; border-radius:20px; }
  .hksev-hero-note { margin-top:14px; background:#fff8e6; border:1px solid #ffe3a3; color:#7a5a00; border-radius:16px; padding:12px 14px; font-size:14px; }
  .hksev-grid-3 { display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
  .hksev-grid-2 { display:grid; grid-template-columns:repeat(2,1fr); gap:16px; }
  .hksev-grid-4 { display:grid; grid-template-columns:repeat(4,1fr); gap:16px; }
  .hksev-mini-card { padding:18px; }
  .hksev-mini-card h3 { margin:0 0 8px; color:var(--hksev-blue-dark); font-size:19px; }
  .hksev-mini-card p, .hksev-mini-card li { color:var(--hksev-muted); font-size:15px; }
  .hksev-symptom-card { padding:20px; }
  .hksev-symptom-card ul { margin:10px 0 0; padding-left:18px; }
  .hksev-list { margin:0; padding-left:18px; }
  .hksev-list li { margin-bottom:8px; }
  .hksev-check { list-style:none; margin:0; padding:0; }
  .hksev-check li { position:relative; padding-left:28px; margin-bottom:10px; color:var(--hksev-muted); }
  .hksev-check li:before { content:'✓'; position:absolute; left:0; top:0; color:#0e8b45; font-weight:900; }
  .hksev-flow { display:grid; grid-template-columns:repeat(5,1fr); gap:14px; }
  .hksev-step { padding:20px 16px; text-align:center; position:relative; }
  .hksev-step-num { width:36px; height:36px; border-radius:50%; background:var(--hksev-blue); color:#fff; display:inline-flex; align-items:center; justify-content:center; font-weight:900; margin-bottom:10px; }
  .hksev-step h3 { margin:0 0 8px; font-size:18px; color:var(--hksev-blue-dark); }
  .hksev-price-wrap { display:grid; grid-template-columns:1fr 1fr; gap:16px; }
  .hksev-price-card { padding:24px; }
  .hksev-price-tag { display:flex; align-items:flex-end; gap:6px; margin:8px 0 12px; color:var(--hksev-blue-dark); }
  .hksev-price-tag strong { font-size:44px; line-height:1; }
  .hksev-price-tag span { font-size:18px; font-weight:700; }
  .hksev-price-foot { margin-top:10px; font-size:13px; color:var(--hksev-muted); }
  .hksev-review { padding:20px; }
  .hksev-stars { color:#f6b300; letter-spacing:2px; font-size:20px; margin-bottom:10px; }
  .hksev-review p { margin:0 0 10px; color:var(--hksev-muted); }
  .hksev-review strong { color:var(--hksev-blue-dark); }
  .hksev-branch { padding:22px; }
  .hksev-branch h3 { margin:0 0 8px; color:var(--hksev-blue-dark); font-size:24px; }
  .hksev-branch p { margin:0 0 8px; color:var(--hksev-muted); }
  .hksev-branch-cta { display:flex; flex-wrap:wrap; gap:10px; margin-top:14px; }
  .hksev-map { margin-top:16px; border-radius:18px; overflow:hidden; border:1px solid var(--hksev-border); }
  .hksev-map iframe { width:100%; height:260px; border:0; display:block; }
  .hksev-faq { overflow:hidden; }
  .hksev-faq-item + .hksev-faq-item { border-top:1px solid var(--hksev-border); }
  .hksev-faq-q { width:100%; text-align:left; background:#fff; border:0; padding:18px 20px; font-size:17px; font-weight:800; color:var(--hksev-blue-dark); display:flex; justify-content:space-between; gap:14px; cursor:pointer; }
  .hksev-faq-a { padding:0 20px 18px; color:var(--hksev-muted); display:none; }
  .hksev-faq-item.active .hksev-faq-a { display:block; }
  .hksev-sticky-bar { position:fixed; left:0; right:0; bottom:0; z-index:999; background:rgba(255,255,255,.97); backdrop-filter:blur(10px); border-top:1px solid var(--hksev-border); box-shadow:0 -8px 20px rgba(0,0,0,.08); padding:10px 12px calc(10px + env(safe-area-inset-bottom)); display:none; }
  .hksev-sticky-inner { display:grid; grid-template-columns:1fr 1fr 1fr; gap:10px; max-width:720px; margin:0 auto; }
  .hksev-sticky-inner a { min-height:48px; border-radius:14px; font-size:16px; font-weight:800; display:flex; align-items:center; justify-content:center; }
  .hksev-sticky-call { background:var(--hksev-blue); color:#fff; }
  .hksev-sticky-wa { background:var(--hksev-green); color:#fff; }
  .hksev-sticky-map { background:#fff; color:var(--hksev-blue-dark); border:1px solid var(--hksev-border); }
  .hksev-seo-box { padding:18px; background:#f6faff; border:1px dashed #c6dbfb; border-radius:18px; color:var(--hksev-muted); font-size:14px; }
  .hksev-divider { height:1px; background:linear-gradient(90deg,transparent,#d7e5f7,transparent); margin:18px 0 0; }
  @media (max-width: 1024px) {
    .hksev-hero-inner, .hksev-grid-3, .hksev-grid-4, .hksev-price-wrap, .hksev-flow { grid-template-columns:1fr 1fr; }
    .hksev-grid-2 { grid-template-columns:1fr; }
    .hksev-trust-row { grid-template-columns:repeat(2,1fr); }
  }
  @media (max-width: 720px) {
    body { padding-bottom:86px; }
    .hksev-section { padding:28px 0; }
    .hksev-hero { padding-top:12px; }
    .hksev-hero-inner, .hksev-grid-3, .hksev-grid-4, .hksev-price-wrap, .hksev-flow, .hksev-trust-row { grid-template-columns:1fr; }
    .hksev-title { font-size:34px; }
    .hksev-btn { width:100%; }
    .hksev-cta-row { gap:10px; }
    .hksev-map iframe { height:220px; }
    .hksev-sticky-bar { display:block; }
  }