:root {
    --legal-ink: #17231f;
    --legal-soft: #4d5a55;
    --legal-muted: #6c7772;
    --legal-paper: #f5f3ec;
    --legal-surface: #fffefa;
    --legal-line: #d8d6cc;
    --legal-green: #1f4b42;
    --legal-blue: #4659dc;
    --legal-warning: #8a481d;
    --legal-warning-bg: #fff4e8;
}

body {
    color: var(--legal-ink);
    background:
        radial-gradient(circle at 85% 0%, rgba(70, 89, 220, 0.08), transparent 30%),
        var(--legal-paper);
    font-family: "Inter", "Noto Sans TC", "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.container {
    max-width: 900px;
    padding: 36px 24px 64px;
}

.back-link {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
    margin-bottom: 28px;
    color: var(--legal-green);
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
}

.back-link:hover {
    color: var(--legal-blue);
    text-decoration: none;
}

header {
    margin-bottom: 34px;
    text-align: left;
}

header h1 {
    margin-bottom: 6px;
    color: var(--legal-ink);
    background: none;
    font-size: clamp(2rem, 5vw, 3.4rem);
    font-weight: 800;
    letter-spacing: -0.055em;
    -webkit-text-fill-color: currentColor;
}

header p {
    color: var(--legal-muted);
}

.lang-toggle {
    justify-content: flex-start;
    gap: 8px;
    margin-bottom: 30px;
}

.lang-toggle button {
    min-height: 44px;
    padding: 0 18px;
    border: 1px solid var(--legal-line);
    border-radius: 12px;
    color: var(--legal-soft);
    background: var(--legal-surface);
    cursor: pointer;
}

.lang-toggle button.active,
.lang-toggle button:hover {
    color: #fff;
    border-color: var(--legal-ink);
    background: var(--legal-ink);
}

.card {
    padding: 32px;
    border: 1px solid var(--legal-line);
    border-radius: 22px;
    background: var(--legal-surface);
    box-shadow: 0 12px 36px rgba(23, 35, 31, 0.06);
    backdrop-filter: none;
}

h2 {
    color: var(--legal-green);
    border-bottom-color: var(--legal-line);
    font-size: 1.2rem;
}

h3 {
    color: var(--legal-ink);
}

p,
li {
    color: var(--legal-soft);
}

a {
    color: var(--legal-green);
}

code {
    padding: 2px 5px;
    border-radius: 5px;
    color: var(--legal-ink);
    background: #eeece5;
    overflow-wrap: anywhere;
}

.notice {
    color: var(--legal-warning);
    border-left-color: #d76d4a;
    background: var(--legal-warning-bg);
}

footer {
    color: var(--legal-muted);
}

:focus-visible {
    outline: 3px solid rgba(70, 89, 220, 0.42);
    outline-offset: 3px;
}

@media (max-width: 600px) {
    .container {
        padding: 20px 16px 48px;
    }

    header {
        margin-bottom: 26px;
    }

    .lang-toggle {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
    }

    .lang-toggle button {
        padding: 0 8px;
        font-size: 13px;
    }

    .card {
        padding: 22px 19px;
        border-radius: 18px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}