:root{--ink:#1d2340;--muted:#6b7394;--me:#ff6b4a;--card:#ffffff;--line:#e4e7f0;--page:#fff8f4;--sky1:#ffd9c7;--sky2:#ffc2d6;--sky3:#b9c8ff}
@media (prefers-color-scheme:dark){:root{--ink:#eef0f8;--muted:#9aa1bd;--card:#1c1f2b;--line:#2b2f40;--page:#12141d}}
*{box-sizing:border-box}
body{margin:0;background:var(--page);color:var(--ink);font:16px/1.65 -apple-system,"SF Pro Text","Sukhumvit Set","Thonburi",system-ui,sans-serif}
a{color:var(--me)}
.wrap{max-width:760px;margin:0 auto;padding:28px 16px 56px}
.sky{background:linear-gradient(180deg,var(--sky3),var(--sky2) 55%,var(--sky1));color:#1d2340}
.hero{max-width:760px;margin:0 auto;padding:56px 16px 64px;text-align:center}
.hero h1{font-size:44px;line-height:1.05;margin:16px 0 8px;letter-spacing:-.02em}
.hero p{font-size:18px;margin:0 auto;max-width:520px;color:#3b3f63}
.flock{width:220px;height:120px;margin:0 auto}
.btn{display:inline-flex;align-items:center;gap:8px;background:#1d2340;color:#fff;text-decoration:none;border:0;border-radius:14px;padding:12px 20px;font:inherit;font-weight:700;margin-top:24px;cursor:pointer}
.btn.alt{background:var(--me)}
.pts{display:grid;gap:12px;margin:8px 0 32px}
.pt{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:14px 16px}
.pt b{display:block;font-size:17px}
.pt span{color:var(--muted);font-size:15px}
footer{color:var(--muted);font-size:14px;text-align:center;padding:24px 16px 40px}
footer a{color:var(--muted)}
h2{margin:32px 0 8px;font-size:20px}
.muted{color:var(--muted);font-size:14px}
.code{font-size:44px;font-weight:800;letter-spacing:10px;background:#fff;border:1px solid #e4e7f0;border-radius:18px;padding:14px 10px;margin:18px auto 8px;max-width:340px;color:#1d2340}
.lang{display:none}.lang.on{display:block}