/* Reset and base styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: #333;
  background-color: #f8f8f8;
  padding: 0;
  margin: 0;
}

/* Container */
.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 20px;
  background-color: #fff;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  min-height: 100vh;
}

/* Header */
header {
  border-bottom: 2px solid #1a3c6e;
  padding-bottom: 20px;
  margin-bottom: 30px;
}

h1 {
  color: #1a3c6e;
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 10px;
}

.subtitle {
  color: #555;
  font-size: 16px;
  margin-bottom: 20px;
}

/* Main content */
main {
  padding: 20px 0;
}

/* Important Notice Box */
.important-notice {
  margin-bottom: 25px;
  padding: 15px;
  border: 2px solid #1a3c6e;
  background-color: #f0f4f9;
  border-radius: 5px;
}

.notice-heading {
  color: #1a3c6e;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  border-bottom: 1px solid #ccd5e1;
  padding-bottom: 5px;
}

.notice-content {
  font-size: 15px;
  line-height: 1.5;
  color: #333;
}

.section-heading {
  color: #1a3c6e;
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 15px;
  border-bottom: 1px solid #ddd;
  padding-bottom: 5px;
}

.announcement {
  margin-bottom: 12px;
  padding: 12px;
  border-left: 3px solid #1a3c6e;
  background-color: #f5f7fa;
}

.announcement-date {
  font-size: 14px;
  color: #666;
  margin-bottom: 5px;
  display: block;
}

.announcement-title {
  font-weight: 600;
  margin-bottom: 8px;
  color: #1a3c6e;
  font-size: 16px;
}

/* Links */
a {
  color: #1a3c6e;
  text-decoration: none;
  transition: color 0.3s;
}

a:hover {
  color: #2c5aa0;
  text-decoration: underline;
}

.new-tag {
  background-color: #c53030;
  color: white;
  font-size: 11px;
  padding: 1px 5px;
  border-radius: 3px;
  margin-right: 6px;
  display: inline-block;
  font-weight: bold;
}

/* Footer */
footer {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid #ddd;
  color: #666;
  font-size: 14px;
}
