*,*::before,*::after{box-sizing:border-box}body{margin:0;background:var(--bg,#F3F9F8);color:var(--ink,#0E2423);font:16px/1.6 Inter,-apple-system,'Segoe UI',Arial,sans-serif}
.ex-top{position:sticky;top:0;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 20px;background:rgba(14,43,42,.96);color:#fff}
.ex-logo{color:#fff;font-weight:700;text-decoration:none;font-size:18px}.ex-btn{display:inline-block;background:#DCF56E;color:#253400;font-weight:700;text-decoration:none;padding:10px 18px;border-radius:999px}
.ex{max-width:880px;margin:0 auto;padding:32px 16px 64px}.ex-k{text-transform:uppercase;letter-spacing:.12em;font-size:13px;font-weight:700;color:#0A5E5A;margin:0}
h1{font-size:clamp(32px,6vw,52px);line-height:1.08;margin:6px 0 8px}.ex-lead{font-size:19px;color:#213634;margin:0 0 16px}
.ex-note{background:#fff;border:1px solid #D2E4E1;border-radius:16px;padding:14px 16px;font-size:14.5px;color:#4A5F5D}
.ex-toc{display:flex;flex-wrap:wrap;gap:8px;margin:18px 0}.ex-toc a{background:#EAF4F3;border-radius:999px;padding:6px 14px;color:#0A5E5A;text-decoration:none;font-weight:600;font-size:14px}
.ex-a{background:#fff;border:1px solid #D2E4E1;border-radius:22px;padding:20px;margin:16px 0}.ex-h{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.ex-h h2{margin:0;font-size:22px}.ex-n{width:34px;height:34px;border-radius:11px;background:#81D8D0;display:inline-flex;align-items:center;justify-content:center;font-weight:700}
.ex-why{color:#213634}.ex-m{color:#4A5F5D;font-size:14.5px}.ex-chips{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.ex-chip{display:inline-block;background:#EAF4F3;border-radius:999px;padding:3px 12px;font-size:13.5px}.ex-chip.sig{background:#DCF56E;color:#253400;font-weight:600}.ex-chip.hh{background:#E6EEF9;color:#24457A}
.ex-l{border-left:3px solid #81D8D0;padding:6px 0 6px 14px;margin:12px 0}.ex-l small{display:block;text-transform:uppercase;letter-spacing:.08em;font-size:12px;color:#4A5F5D;font-weight:700}
.ex-l b{display:block;margin-top:2px}.ex-l p{margin:4px 0 0}.ex-end{text-align:center;margin-top:32px}.ex-link{margin-left:12px;color:#0A5E5A;font-weight:600}
@media (prefers-color-scheme:dark){body{background:#0E1B1A;color:#E8F2F0}.ex-a,.ex-note{background:#132625;border-color:#24504D}.ex-why,.ex-lead{color:#C8DAD7}.ex-note,.ex-m{color:#9DB8B4}.ex-chip{background:#1B3533;color:#E8F2F0}.ex-toc a{background:#1B3533;color:#81D8D0}.ex-k{color:#81D8D0}}