:root{font-family:"Segoe UI","Microsoft JhengHei",sans-serif;color:#17313d;background:#eef3f5;--navy:#123c4a;--blue:#057ca5;--line:#c8d4d9;--danger:#a92d2d}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0}.h3-header{display:flex;justify-content:space-between;align-items:center;padding:18px 30px;background:var(--navy);color:#fff}.h3-header h1{margin:0}.h3-header nav{display:flex;gap:14px}.h3-header a{color:#fff}.h3-main{max-width:960px;margin:30px auto;padding:0 18px}.h3-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;margin-bottom:18px}.h3-form{display:grid;gap:12px}.h3-form label{display:grid;gap:5px}.h3-form input,.h3-form select,.h3-form textarea{font:inherit;padding:9px;border:1px solid #9eb2ba;border-radius:6px}.h3-form button,.h3-button{font:inherit;font-weight:700;padding:9px 14px;border-radius:7px;border:0;background:var(--blue);color:#fff;cursor:pointer}.h3-secondary{background:#fff;color:#145267;border:1px solid #9eb7c1}.h3-danger{background:var(--danger)}.h3-status{padding:10px 12px;background:#e7f2f5;border-radius:8px;white-space:pre-wrap}.h3-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:15px}.h3-table{width:100%;border-collapse:collapse}.h3-table th,.h3-table td{padding:8px;border-bottom:1px solid var(--line);text-align:left}.h3-warning{background:#fff1b8;padding:10px;border-radius:8px}.h3-hidden{display:none!important}