/* ===== Theme: swap these to rebrand ===== */
:root{
  --color-primary:#1f3a5f;      /* deep navy */
  --color-primary-dark:#152a45;
  --color-accent:#c8963e;       /* warm harvest gold */
  --color-text:#1d2330;
  --color-muted:#5b6475;
  --color-bg:#ffffff;
  --color-bg-alt:#f4f6f9;
  --color-border:#dfe3ea;
  --color-success:#1e7a46;
  --color-error:#b3261e;
  --radius:12px;
  --shadow:0 2px 10px rgba(20,30,50,.06);
  --font:"Noto Sans HK","PingFang HK","Microsoft JhengHei","Heiti TC",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --maxw:1100px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{margin:0;font-family:var(--font);color:var(--color-text);background:var(--color-bg);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%}
a{color:var(--color-primary)}
h1,h2,h3{line-height:1.3;margin:0 0 .5em}
p{margin:0 0 1em}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 20px}
.narrow{max-width:680px}
.skip{position:absolute;left:-999px;top:0;background:#000;color:#fff;padding:8px 12px;z-index:100}
.skip:focus{left:8px}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--color-border)}
.nav{display:flex;align-items:center;gap:16px;height:64px}
.wordmark{font-weight:800;font-size:1.2rem;letter-spacing:-.01em;text-decoration:none;color:var(--color-primary);white-space:nowrap}
.wordmark span{color:var(--color-accent);margin-left:.25em}
.wordmark.light{color:#fff}
.links{display:none;margin-left:auto;gap:22px;align-items:center}
.links a{text-decoration:none;color:var(--color-text);font-size:.95rem}
.links a:hover{color:var(--color-primary)}
.nav-cta{background:var(--color-primary);color:#fff!important;padding:8px 16px;border-radius:999px}
.lang-toggle{margin-left:auto;border:1px solid var(--color-border);background:#fff;color:var(--color-primary);font-weight:700;border-radius:999px;padding:6px 14px;cursor:pointer;font-size:.9rem;min-width:56px}
.lang-toggle:hover{border-color:var(--color-primary)}

/* Hero */
.hero{background:linear-gradient(160deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);color:#fff;padding:64px 0 72px}
.eyebrow{color:var(--color-accent);font-weight:700;letter-spacing:.06em;font-size:.9rem;text-transform:uppercase}
.hero h1{font-size:1.75rem;max-width:22em}
.lead{font-size:1.05rem;opacity:.9;max-width:36em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* Buttons */
.btn{display:inline-block;padding:13px 24px;border-radius:999px;font-weight:700;text-decoration:none;font-size:1rem;border:2px solid transparent;cursor:pointer;text-align:center;font-family:inherit;transition:transform .1s,background .2s}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--color-accent);color:#1b1b1b}
.btn-primary:hover{background:#b8862f}
.btn-ghost{border-color:rgba(255,255,255,.6);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1)}
.btn-block{width:100%}
.btn[disabled]{opacity:.6;cursor:wait}

/* Sections */
.section{padding:64px 0}
.section.alt{background:var(--color-bg-alt)}
.section h2{font-size:1.6rem;color:var(--color-primary)}
.section-lead{color:var(--color-muted);margin-bottom:32px}
.grid{display:grid;gap:20px}
.card{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);position:relative}
.card h3{font-size:1.15rem}
.card p{color:var(--color-muted);margin:0}
.icon{width:44px;height:44px;border-radius:10px;background:rgba(200,150,62,.14);color:var(--color-accent);display:flex;align-items:center;justify-content:center;margin-bottom:14px}
.icon svg{width:24px;height:24px}

/* Placeholder cases */
.card.placeholder{border:2px dashed var(--color-accent);background:repeating-linear-gradient(45deg,#fff,#fff 12px,#fcf8f0 12px,#fcf8f0 24px)}
.badge{display:inline-block;background:var(--color-accent);color:#1b1b1b;font-size:.75rem;font-weight:700;padding:3px 10px;border-radius:999px;margin-bottom:12px;letter-spacing:.04em}
.case-industry{font-size:.85rem;font-weight:700;color:var(--color-primary)!important;margin-bottom:4px!important}

/* Steps */
.steps{list-style:none;padding:0;margin:0;display:grid;gap:20px}
.steps li{display:flex;gap:16px;align-items:flex-start}
.num{flex:0 0 auto;width:40px;height:40px;border-radius:50%;background:var(--color-primary);color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center}
.steps h3{font-size:1.05rem;margin-bottom:.2em}
.steps p{color:var(--color-muted);margin:0}

/* Form */
.form{background:#fff;border:1px solid var(--color-border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.field{margin-bottom:16px}
.field label{display:block;font-weight:700;font-size:.95rem;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border:1px solid var(--color-border);border-radius:8px;font:inherit;font-size:16px;background:#fff;color:var(--color-text)}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--color-primary);outline-offset:1px;border-color:var(--color-primary)}
.field .invalid{border-color:var(--color-error)}
.hp{position:absolute!important;left:-10000px;width:1px;height:1px;overflow:hidden}
.form-status{margin:14px 0 0;font-weight:700;min-height:1.2em}
.form-status.ok{color:var(--color-success)}
.form-status.err{color:var(--color-error)}
.privacy{font-size:.85rem;color:var(--color-muted);margin:8px 0 0}

/* Footer */
.site-footer{background:var(--color-primary-dark);color:rgba(255,255,255,.85);padding:40px 0 24px;font-size:.95rem}
.site-footer a{color:#fff}
.footer-grid{display:grid;gap:20px}
.footer-grid p{margin:.4em 0}
.copy{border-top:1px solid rgba(255,255,255,.15);margin-top:24px;padding-top:16px;font-size:.85rem;opacity:.75}

@media (min-width:760px){
  .links{display:flex}
  .lang-toggle{margin-left:8px}
  .hero{padding:96px 0 104px}
  .hero h1{font-size:2.5rem}
  .section{padding:88px 0}
  .section h2{font-size:2rem}
  .grid.three{grid-template-columns:repeat(3,1fr)}
  .steps{grid-template-columns:repeat(4,1fr)}
  .steps li{flex-direction:column}
  .footer-grid{grid-template-columns:1fr 1fr}
  .form{padding:32px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}