* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: Arial, sans-serif; font-size: 14px; color: #1a1a1a; background: #fff; padding: 24px; max-width: 980px; margin: auto; }

nav { background: #1d7a5f; padding: 10px 14px; border-radius: 6px; margin-bottom: 24px; display: flex; gap: 6px; flex-wrap: wrap; }
nav a { color: #fff; text-decoration: none; font-size: 12px; padding: 4px 10px; border: 1px solid rgba(255,255,255,0.35); border-radius: 4px; }
nav a:hover { background: rgba(255,255,255,0.2); }
nav a.on { background: rgba(255,255,255,0.25); font-weight: bold; }

h1 { background: #1d7a5f; color: #fff; padding: 14px 18px; border-radius: 6px; font-size: 20px; margin-bottom: 5px; }
.sub { color: #666; font-size: 13px; margin-bottom: 22px; padding-left: 4px; font-style: italic; }

h2 { background: #e8f5f0; border-left: 4px solid #1d7a5f; padding: 8px 12px; font-size: 15px; margin: 28px 0 10px; color: #1d4d3d; border-radius: 0 4px 4px 0; }
h3 { font-size: 14px; font-weight: bold; color: #1d7a5f; margin: 16px 0 6px; border-bottom: 1px solid #c8e8df; padding-bottom: 3px; }
h4 { font-size: 13px; font-weight: bold; color: #1d4d3d; margin: 10px 0 4px; }

p { margin-bottom: 8px; line-height: 1.65; }
ul { margin: 6px 0 10px 20px; }
li { margin-bottom: 4px; line-height: 1.55; }
b { color: #1d4d3d; }

table { width: 100%; border-collapse: collapse; margin: 10px 0 16px; font-size: 13px; }
th { background: #1d7a5f; color: #fff; padding: 7px 10px; text-align: left; font-weight: bold; }
td { padding: 6px 10px; border: 1px solid #d0e8e0; vertical-align: top; line-height: 1.5; }
tr:nth-child(even) td { background: #f4fbf8; }

.red  { background: #fef0ee; border-left: 4px solid #c0392b; padding: 10px 14px; margin: 12px 0; border-radius: 0 4px 4px 0; }
.red b { color: #a93226; }
.blue { background: #eaf4fb; border-left: 4px solid #2980b9; padding: 10px 14px; margin: 12px 0; border-radius: 0 4px 4px 0; }
.blue b { color: #1a5276; }
.green{ background: #e8f5f0; border-left: 4px solid #1d7a5f; padding: 10px 14px; margin: 12px 0; border-radius: 0 4px 4px 0; }
.green b { color: #1d4d3d; }
.amber{ background: #fef9ec; border-left: 4px solid #d4a017; padding: 10px 14px; margin: 12px 0; border-radius: 0 4px 4px 0; }
.amber b { color: #9a6e0a; }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 10px 0 16px; }
.grid3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; margin: 10px 0 16px; }
.card { border: 1px solid #d0e8e0; border-radius: 4px; padding: 10px 12px; }
.card h4 { color: #1d7a5f; margin-bottom: 6px; }

footer { margin-top: 40px; padding-top: 12px; border-top: 1px solid #e0e0e0; font-size: 12px; color: #999; text-align: center; }