* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.8;
    color: #333;
    background: linear-gradient(135deg, #f0f2f5 0%, #e8eef7 100%);
}
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}
header {
    background: linear-gradient(to right, #002e4d, #004080);
    color: white;
    padding: 1.5rem 0;
}
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    font-size: 2rem;
    font-weight: bold;
}
.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}
.nav-menu a {
    color: white;
    text-decoration: none;
    font-weight: 500;
}
.nav-menu a:hover {
    color: #80b3ff;
}
main {
    min-height: calc(100vh - 200px);
    padding: 2rem 0;
}
footer {
    background-color: #002e4d;
    color: white;
    text-align: center;
    padding: 2rem 0;
}
footer a {
    color: #80b3ff;
}
h2 {
    color: #002e4d;
    margin-bottom: 2rem;
    font-size: 2.2rem;
}
h4 {
    color: #004080;
}
.news-card {
    background: white;
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-left: 5px solid #004080;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}
.news-date {
    display: block;
    color: #777;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}
.tip-card {
    background: white;
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-radius: 6px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}
.tip-card ul {
    list-style: none;
    margin-top: 1rem;
}
.tip-card li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}
.tip-card li:before {
    content: "▸";
    position: absolute;
    left: 0;
    color: #004080;
}
.btn {
    background: #004080;
    color: white;
    padding: 0.8rem 2rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
}