:root{--bg:#f5f8fc;--card:#fff;--text:#1f2937;--muted:#667085;--line:#dbe4ef;--primary:#0b67d8;--primary-dark:#084ca3;--soft:#eef6ff;--shadow:0 18px 45px rgba(15,23,42,.08);--radius:18px;--container:920px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:var(--text);background:linear-gradient(180deg,#fbfdff 0%,var(--bg) 100%);line-height:1.7}a{color:var(--primary)}.topbar{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}.topbar-inner{width:min(1100px,calc(100% - 32px));min-height:70px;margin:auto;display:flex;align-items:center;justify-content:space-between;gap:16px}.brand{font-weight:900;text-decoration:none;color:var(--primary-dark)}.back{display:inline-flex;align-items:center;justify-content:center;padding:10px 15px;border-radius:999px;background:var(--primary);color:#fff;text-decoration:none;font-weight:800}.container{width:min(var(--container),calc(100% - 32px));margin:42px auto}.card{padding:42px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}h1{margin:0 0 8px;font-size:clamp(32px,5vw,46px);line-height:1.08;letter-spacing:-.035em}h2{margin:36px 0 10px;font-size:24px;line-height:1.25;color:var(--primary-dark)}h3{margin:24px 0 8px;font-size:18px}.updated,.muted{color:var(--muted)}.notice{margin:24px 0;padding:16px 18px;border:1px solid #bfd7ff;border-radius:14px;background:var(--soft)}ul,ol{padding-left:22px}.contact-box{margin-top:18px;padding:18px;border-left:4px solid var(--primary);border-radius:10px;background:#f8fbff}.footer{margin-top:38px;padding-top:22px;border-top:1px solid var(--line);color:var(--muted);font-size:14px}.placeholder{padding:2px 6px;border-radius:5px;background:#fff4cc;color:#7a5200;font-weight:700}@media(max-width:650px){.card{padding:26px}.topbar-inner{min-height:64px}.back{padding:8px 12px;font-size:14px}}