:root { --fg:#1d1d1f; --muted:#6e6e73; --acc:#0066cc; --bg:#ffffff; }
* { box-sizing: border-box; }
body { margin:0; font:16px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif; color:var(--fg); background:var(--bg); }
.bar { display:flex; justify-content:space-between; align-items:center; padding:14px 20px; border-bottom:1px solid #ececec; }
.bar a { color:inherit; text-decoration:none; }
.langtoggle button { border:1px solid #d2d2d7; background:#fff; border-radius:6px; padding:4px 10px; margin-left:6px; cursor:pointer; }
.hero { max-width:760px; margin:0 auto; padding:40px 20px; }
h1 { font-size:34px; line-height:1.15; letter-spacing:-0.02em; }
.sub { font-size:19px; color:var(--muted); }
.cta { display:inline-block; margin:18px 0 8px; background:var(--acc); color:#fff; text-decoration:none; padding:12px 20px; border-radius:10px; font-weight:600; }
ul { padding-left:20px; }
.foot { color:var(--muted); text-align:center; padding:30px; font-size:13px; }
.notice { max-width:760px; margin:20px auto; padding:14px 16px; border:1px solid #f0c36d; background:#fff8e6; border-radius:8px; }
#surveyContainer { max-width:820px; margin:0 auto; padding:20px; }