body{font-family:-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;max-width:1100px;margin:0 auto;padding:18px;color:#222;line-height:1.65;background:#fafafa}
h1{font-size:26px;border-bottom:2px solid #1a6fb5;padding-bottom:8px}
h2{font-size:20px;color:#1a6fb5;margin-top:34px}
h3{font-size:16px;margin-top:22px}
nav{background:#1a6fb5;padding:10px 18px;border-radius:8px;margin-bottom:18px}
nav a{color:#fff;margin-right:22px;text-decoration:none;font-weight:bold}
nav a:hover{text-decoration:underline}
.lang-toggle{float:right;font-weight:bold}
.lang-toggle a{margin:0 4px;opacity:.6}
.lang-toggle a.active{opacity:1;text-decoration:underline}
.card{background:#fff;border:1px solid #ddd;border-radius:8px;padding:16px;margin:14px 0}
.stat{display:inline-block;background:#e8f1fa;border-radius:8px;padding:12px 18px;margin:6px 10px 6px 0;text-align:center}
.stat b{font-size:24px;display:block;color:#1a6fb5}
.caveat{background:#fff8e6;border-left:4px solid #e0a800;padding:8px 12px;margin:8px 0;font-size:14px}
.caveat b{color:#a87800}
table{border-collapse:collapse;width:100%;font-size:14px;background:#fff}
th,td{border:1px solid #ddd;padding:6px 8px;text-align:left}
th{background:#eef4fa}
tr:hover{background:#f6fbff}
input[type=text]{font-size:18px;padding:8px 12px;width:340px;border:2px solid #1a6fb5;border-radius:6px}
button{font-size:16px;padding:8px 20px;background:#1a6fb5;color:#fff;border:none;border-radius:6px;cursor:pointer}
button:hover{background:#145a94}
.badge{display:inline-block;font-size:12px;padding:2px 8px;border-radius:10px;background:#e0ecf7;color:#1a6fb5;margin-right:6px}
.badge.sig{background:#d4edda;color:#1d6b2f}
.badge.nonsig{background:#f0f0f0;color:#666}
.badge.warn{background:#fff3cd;color:#856404}
.footer{margin-top:40px;padding-top:12px;border-top:1px solid #ccc;font-size:13px;color:#777}
canvas{max-width:100%;background:#fff;border:1px solid #ddd;border-radius:8px}
a{color:#1a6fb5}
.disc{background:#fdecea;border:1px solid #e6a19a;border-radius:8px;padding:12px 16px;margin:16px 0}
.disc b{color:#b3352b}