:root {
    --ink: #16324f;
    --muted: #617289;
    --panel: #ffffff;
    --line: #d7e2ef;
    --primary: #1459c7;
    --primary-dark: #12345b;
    --accent: #f7b500;
    --shadow: 0 16px 34px rgba(21, 61, 116, 0.08);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', Arial, sans-serif;
    color: var(--ink);
    min-height: 100vh;
}

a { color: inherit; }

.page {
    margin: 0 auto;
}

.top-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 18px;
}

.top-nav a {
    text-decoration: none;
    font-weight: 700;
    padding: 10px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid var(--line);
    color: var(--primary);
}

.top-nav a.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.footer {
    margin-top: 24px;
    text-align: center;
    color: var(--muted);
    font-size: 0.92rem;
}

@media (max-width: 760px) {
    .page {
        padding-left: 14px;
        padding-right: 14px;
    }
}