:root{--brand-green:#006564;--brand-green-hover:#00807e;--brand-green-soft:rgba(0,101,100,.1);--brand-green-border:rgba(0,101,100,.35);--brand-purple:#51247a;--brand-purple-hover:#6a3592;--brand-purple-soft:rgba(81,36,122,.1);--brand-purple-border:rgba(81,36,122,.35);--bg:#fff;--bg-soft:#f7f8fa;--bg-card:#fff;--fg:#1a1f2b;--fg-muted:#5b6573;--border:#e5e8ee;--accent:var(--brand-green);--accent-hover:var(--brand-green-hover);--accent-secondary:var(--brand-purple);--accent-secondary-hover:var(--brand-purple-hover);--success:#0a8a4a;--warn:#b6761a;--danger:#c2410c}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang HK,Hiragino Sans HK,Microsoft YaHei,Noto Sans CJK HK,sans-serif;font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover);text-decoration:underline}button{font:inherit;font-weight:600;background:var(--accent);color:#fff;border:0;border-radius:8px;padding:10px 18px;cursor:pointer;transition:background-color .15s ease,transform .05s ease}button:hover{background:var(--accent-hover)}button:active{transform:translateY(1px)}button:disabled{opacity:.55;cursor:not-allowed}button.secondary{background:#fff;border:1px solid var(--border);color:var(--fg)}button.secondary:hover{background:var(--bg-soft);border-color:var(--brand-green-border);color:var(--accent)}button.purple{background:var(--accent-secondary)}button.purple:hover{background:var(--accent-secondary-hover)}.container{max-width:960px;margin:0 auto;padding:48px 24px}.brand-header{display:flex;align-items:center;justify-content:space-between;padding-bottom:24px;border-bottom:1px solid var(--border);margin-bottom:32px}.brand-lockup{display:inline-flex;align-items:center;gap:12px}.brand-lockup,.brand-lockup:hover{text-decoration:none}.brand-mark{height:44px;width:44px;border-radius:10px;display:block;box-shadow:0 1px 2px rgba(16,24,40,.06)}.brand-wordmark{font-size:26px;font-weight:800;letter-spacing:-.5px;line-height:1}.brand-wordmark-green{color:var(--brand-green)}.brand-wordmark-purple{color:var(--brand-purple)}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:28px;margin-bottom:20px;box-shadow:0 1px 2px rgba(16,24,40,.04)}.card.highlight{border-color:var(--brand-purple);box-shadow:0 0 0 3px var(--brand-purple-soft),0 1px 2px rgba(16,24,40,.04)}.card.hero{background:linear-gradient(135deg,var(--brand-green-soft) 0,var(--brand-purple-soft) 100%);border-color:var(--brand-green-border)}.muted{color:var(--fg-muted)}.row{display:flex;gap:12px;align-items:center}.grid-2{display:grid;grid-template-columns:1fr 1fr;grid-gap:20px;gap:20px}@media (max-width:640px){.grid-2{grid-template-columns:1fr}.container{padding:24px 16px}}h1{font-size:32px;letter-spacing:-.5px}h1,h2{margin:0 0 12px}h2{font-size:22px;letter-spacing:-.2px}h3{font-size:17px;margin:0 0 8px}.price{font-size:32px;font-weight:700;margin:12px 0;color:var(--fg)}.badge{display:inline-block;background:var(--brand-green-soft);color:var(--brand-green);border:1px solid var(--brand-green-border);border-radius:999px;padding:2px 10px;font-size:12px;font-weight:600;margin-left:8px;vertical-align:middle}.badge.purple{background:var(--brand-purple-soft);color:var(--brand-purple);border-color:var(--brand-purple-border)}.brand-bar{height:4px;background:linear-gradient(90deg,var(--brand-green) 0,var(--brand-green) 50%,var(--brand-purple) 50%,var(--brand-purple) 100%);border-radius:2px;margin-bottom:24px}input[readonly],input[type=email],input[type=text]{background:#fff;color:var(--fg);border:1px solid var(--border);border-radius:8px;padding:10px 12px;width:100%;font:inherit}input[type=email]:focus,input[type=text]:focus{outline:none;border-color:var(--brand-green);box-shadow:0 0 0 3px var(--brand-green-soft)}::selection{background:var(--brand-purple-soft);color:var(--brand-purple)}