:root {
    --bg-color: #fffbe5;
    --accent-color: #cb2e30;
    --accent-soft: #fbe2e3;
    --card-bg: #ffffff;
    --text-muted: #a05f60;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Segoe UI", sans-serif;
    background-color: var(--bg-color);
    color: var(--accent-color);
    line-height: 1.6;
}

a {
    color: var(--accent-color);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.site-header {
    border-bottom: 1px solid rgba(203, 46, 48, 0.15);
    background-color: rgba(255, 251, 229, 0.9);
    backdrop-filter: blur(8px);
    position: sticky;
    top: 0;
    z-index: 10;
}

.header-inner {
    max-width: 960px;
    margin: 0 auto;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-title {
    font-weight: 800;
    font-size: 20px;
    letter-spacing: 0.04em;
}

.nav-links {
    display: flex;
    gap: 16px;
    font-size: 14px;
}

.nav-links a {
    padding: 4px 8px;
    border-radius: 999px;
}

.nav-links a.active,
.nav-links a:hover {
    background-color: var(--accent-soft);
    text-decoration: none;
}

.main-container {
    max-width: 960px;
    margin: 0 auto;
    padding: 24px 16px 40px;
}

.hero {
    padding: 24px 20px;
    border-radius: 24px;
    background: radial-gradient(circle at top left, #ffeac7, var(--bg-color));
    border: 1px solid rgba(203, 46, 48, 0.12);
}

.hero-title {
    font-size: 28px;
    font-weight: 900;
    margin: 0 0 12px;
}

.hero-subtitle {
    font-size: 15px;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 999px;
    background-color: var(--accent-soft);
    font-size: 11px;
    font-weight: 600;
}

.badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--accent-color);
}

.hero-buttons {
    margin-top: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 600;
    border: 1px solid var(--accent-color);
    background-color: var(--accent-color);
    color: #fff;
}

.btn-secondary {
    background-color: transparent;
    color: var(--accent-color);
}

.section {
    margin-top: 32px;
}

.section-title {
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 12px;
}

.section-lead {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.grid {
    display: grid;
    gap: 16px;
}

@media (min-width: 720px) {
    .grid-3 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .grid-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.card {
    background-color: var(--card-bg);
    border-radius: 18px;
    padding: 16px 18px;
    border: 1px solid rgba(203, 46, 48, 0.12);
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.02);
}

.card-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 6px;
}

.card-text {
    font-size: 13px;
    color: var(--text-muted);
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 8px;
}

.tag {
    font-size: 11px;
    padding: 3px 10px;
    border-radius: 999px;
    background-color: var(--accent-soft);
}

/* プライバシーポリシー・ヘルプ用 */

.article {
    background-color: var(--card-bg);
    border-radius: 18px;
    padding: 20px 20px 24px;
    border: 1px solid rgba(203, 46, 48, 0.12);
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.02);
    font-size: 14px;
}

.article h1 {
    font-size: 22px;
    margin-top: 0;
}

.article h2 {
    font-size: 16px;
    margin-top: 18px;
    margin-bottom: 6px;
}

.article p,
.article li {
    color: var(--text-muted);
}

.article ul {
    padding-left: 20px;
}

.article small {
    font-size: 12px;
    color: var(--text-muted);
}

.footer {
    border-top: 1px solid rgba(203, 46, 48, 0.15);
    margin-top: 32px;
}

.footer-inner {
    max-width: 960px;
    margin: 0 auto;
    padding: 12px 16px 20px;
    font-size: 11px;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 8px;
}