:root{--text:#07162f;--muted:#64718a;--line:#e7ebf3}*{box-sizing:border-box}body{margin:0;background:#fbfcff;color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}.guide-nav{height:68px;background:#fff;border-bottom:1px solid var(--line)}.guide-nav>div{max-width:980px;height:100%;margin:auto;padding:0 24px;display:flex;align-items:center;gap:28px}.guide-nav a{text-decoration:none;color:var(--text);font-size:13px;font-weight:700}.guide-nav .guide-brand{font-size:26px;font-weight:850;letter-spacing:-1px;margin-right:auto}main{max-width:900px;margin:0 auto;padding:32px 24px 70px}main nav{font-size:12px;color:var(--muted);margin:4px 0 30px}main nav a{color:#4966f2;text-decoration:none}article{background:#fff;border:1px solid var(--line);border-radius:28px;padding:46px 54px;box-shadow:0 14px 42px rgba(30,50,100,.045)}article h1{font-size:48px;line-height:1.04;letter-spacing:-2.5px;margin:0 0 24px}article h2{font-size:27px;letter-spacing:-1px;margin:42px 0 12px}article h3{font-size:18px;margin:25px 0 8px}article p,article li{font-size:16px;line-height:1.72;color:#34425a}article>p:first-of-type{background:#f3f5ff;border:1px solid #e2e7ff;border-radius:18px;padding:20px;color:#263653}article a{color:#3f5fe8;font-weight:700;text-decoration:none}article ul{padding-left:22px}article p>a[href*='?product=']{display:inline-block;background:#5268ed;color:#fff;border-radius:999px;padding:13px 20px;margin:8px 0}
/* Purple technology theme */
:root{--text:#f7f5ff;--muted:#aaa5bd;--line:#2b2840}body{background:radial-gradient(circle at 80% 5%,rgba(124,58,237,.15),transparent 30%),#0b0b16;color:var(--text)}.guide-nav{background:#0e0d19;border-bottom-color:#2b2840}.guide-nav a{color:#eee9f8}.guide-nav .guide-brand{color:#a855f7}main nav{color:#8f899f}main nav a,article a{color:#b78aff}article{background:#151526;border-color:#2b2840;box-shadow:0 18px 50px rgba(68,35,130,.18)}article p,article li{color:#c0bbce}article>p:first-of-type{background:#201a35;border-color:#3b2e5d;color:#e9e2f5}article p>a[href*='?product=']{background:linear-gradient(90deg,#6d28d9,#a855f7);color:#fff}
@media(max-width:650px){.guide-nav{height:62px}.guide-nav>div{padding:0 17px;gap:16px}.guide-nav .guide-brand{font-size:23px}.guide-nav a:not(.guide-brand){font-size:11px}main{padding:20px 14px 50px}main nav{margin:3px 3px 18px;font-size:11px}article{border-radius:21px;padding:28px 20px}article h1{font-size:36px;letter-spacing:-1.7px}article h2{font-size:23px;margin-top:34px}article p,article li{font-size:15px;line-height:1.65}}