:root {
    --legal-bg: #f4f6f8;
    --legal-surface: #ffffff;
    --legal-ink: #172033;
    --legal-muted: #667085;
    --legal-border: #d8dee8;
    --legal-accent: #0f766e;
    --legal-deep: #15251f;
    --legal-soft: #eaf5f2;
    color-scheme: light;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--legal-bg);
    color: var(--legal-ink);
    font-family: Inter, "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, -apple-system, sans-serif;
    line-height: 1.75;
}

a { color: var(--legal-accent); }
a:hover { color: #0b5f59; }

.skip-link {
    position: fixed;
    top: -4rem;
    left: 1rem;
    z-index: 2000;
    border-radius: 0.5rem;
    background: #fff;
    padding: 0.75rem 1rem;
    box-shadow: 0 8px 30px rgba(15, 23, 42, 0.18);
}

.skip-link:focus { top: 1rem; }

.legal-container {
    width: min(1180px, calc(100% - 2rem));
    margin-inline: auto;
}

.legal-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(216, 222, 232, 0.9);
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(12px);
}

.legal-header-inner {
    display: flex;
    min-height: 72px;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.legal-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    color: var(--legal-ink);
    text-decoration: none;
}

.legal-brand img { border-radius: 0.45rem; }
.legal-brand span { display: grid; line-height: 1.15; }
.legal-brand strong { font-size: 1rem; }
.legal-brand small { margin-top: 0.25rem; color: var(--legal-muted); font-size: 0.72rem; }

.legal-top-nav {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.35rem;
}

.legal-top-nav a {
    border-radius: 0.45rem;
    padding: 0.48rem 0.68rem;
    color: #475467;
    font-size: 0.86rem;
    font-weight: 700;
    text-decoration: none;
    white-space: nowrap;
}

.legal-top-nav a:hover,
.legal-top-nav a[aria-current="page"] { background: var(--legal-soft); color: var(--legal-accent); }

.legal-top-nav .home-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-left: 0.25rem;
    background: var(--legal-deep);
    color: #fff;
}

.legal-top-nav .home-link:hover { background: #20372f; color: #fff; }

.legal-hero {
    overflow: hidden;
    border-bottom: 1px solid rgba(216, 222, 232, 0.65);
    background:
        radial-gradient(circle at 82% 18%, rgba(15, 118, 110, 0.15), transparent 28rem),
        linear-gradient(135deg, #ffffff 0%, #f1f7f5 100%);
    padding: 4.5rem 0 4rem;
}

.legal-eyebrow,
.legal-section-kicker {
    color: var(--legal-accent);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.legal-hero h1 {
    max-width: 820px;
    margin: 0.7rem 0 0;
    font-size: clamp(2.35rem, 5vw, 4rem);
    line-height: 1.08;
    letter-spacing: -0.035em;
}

.legal-hero p {
    max-width: 760px;
    margin: 1.25rem 0 0;
    color: #475467;
    font-size: clamp(1rem, 2vw, 1.15rem);
}

.legal-updated {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-top: 1.4rem;
    border: 1px solid #cfe4df;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.75);
    padding: 0.42rem 0.75rem;
    color: #475467;
    font-size: 0.82rem;
}

.legal-layout {
    display: grid;
    grid-template-columns: minmax(220px, 270px) minmax(0, 1fr);
    gap: 2rem;
    align-items: start;
    padding-block: 2rem 4rem;
}

.legal-toc { position: sticky; top: 96px; display: grid; gap: 1rem; }

.legal-toc-card,
.legal-help-card,
.legal-article {
    border: 1px solid var(--legal-border);
    border-radius: 0.75rem;
    background: var(--legal-surface);
}

.legal-toc-card { padding: 1rem; }
.legal-toc-title { margin-bottom: 0.65rem; font-size: 0.78rem; font-weight: 800; color: var(--legal-muted); }
.legal-toc nav { display: grid; gap: 0.2rem; }
.legal-toc nav a { border-radius: 0.4rem; padding: 0.42rem 0.55rem; color: #475467; font-size: 0.86rem; text-decoration: none; }
.legal-toc nav a:hover { background: var(--legal-soft); color: var(--legal-accent); }

.legal-help-card { padding: 1rem; }
.legal-help-card > i { display: grid; width: 2rem; height: 2rem; place-items: center; margin-bottom: 0.7rem; border-radius: 0.5rem; background: var(--legal-soft); color: var(--legal-accent); }
.legal-help-card strong { display: block; }
.legal-help-card p { margin: 0.4rem 0 0.6rem; color: var(--legal-muted); font-size: 0.84rem; }
.legal-help-card a { overflow-wrap: anywhere; font-size: 0.82rem; font-weight: 700; }

.legal-article { padding: clamp(1.35rem, 4vw, 3rem); }
.legal-article section { scroll-margin-top: 96px; }
.legal-article section + section { margin-top: 2.75rem; padding-top: 2.75rem; border-top: 1px solid var(--legal-border); }
.legal-article h2 { margin: 0 0 1rem; font-size: clamp(1.3rem, 3vw, 1.65rem); line-height: 1.35; }
.legal-article h3 { margin: 1.5rem 0 0.6rem; font-size: 1.05rem; }
.legal-article p { margin: 0.8rem 0; color: #344054; }
.legal-article ul,
.legal-article ol { margin: 0.8rem 0; padding-left: 1.35rem; color: #344054; }
.legal-article li + li { margin-top: 0.45rem; }
.legal-article strong { color: var(--legal-ink); }

.legal-note {
    margin: 1.2rem 0;
    border-left: 4px solid var(--legal-accent);
    border-radius: 0.35rem;
    background: var(--legal-soft);
    padding: 1rem 1.1rem;
    color: #294e48;
}

.legal-warning {
    margin: 1.2rem 0;
    border-left: 4px solid #d97706;
    border-radius: 0.35rem;
    background: #fff7e8;
    padding: 1rem 1.1rem;
    color: #754600;
}

.legal-definition-list {
    display: grid;
    grid-template-columns: minmax(120px, 180px) minmax(0, 1fr);
    gap: 0;
    margin: 1rem 0;
    border: 1px solid var(--legal-border);
    border-radius: 0.55rem;
    overflow: hidden;
}

.legal-definition-list dt,
.legal-definition-list dd { margin: 0; padding: 0.8rem 0.9rem; border-bottom: 1px solid var(--legal-border); }
.legal-definition-list dt { background: #f8fafb; font-weight: 800; }
.legal-definition-list dd { color: #344054; }
.legal-definition-list dt:last-of-type,
.legal-definition-list dd:last-of-type { border-bottom: 0; }

.legal-source-links { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1rem; }
.legal-source-links a { display: inline-flex; align-items: center; gap: 0.35rem; border: 1px solid #bcdad4; border-radius: 999px; padding: 0.4rem 0.7rem; background: #fff; font-size: 0.8rem; font-weight: 700; text-decoration: none; }

.legal-contact {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    border: 0 !important;
    border-radius: 0.7rem;
    background: var(--legal-deep);
    padding: 1.35rem !important;
    color: #fff;
}

.legal-contact h2 { margin: 0.3rem 0 0.35rem; color: #fff; font-size: 1.15rem; }
.legal-contact p { margin: 0; color: rgba(255, 255, 255, 0.72); font-size: 0.86rem; }
.legal-contact a { color: #a7f3d0; }
.legal-contact-button { display: inline-flex; align-items: center; gap: 0.45rem; flex: 0 0 auto; border-radius: 0.5rem; background: #fff; padding: 0.65rem 0.9rem; color: var(--legal-deep) !important; font-size: 0.86rem; font-weight: 800; text-decoration: none; }

.legal-footer { border-top: 1px solid var(--legal-border); background: #fff; color: var(--legal-muted); }
.legal-footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem 2rem; padding-block: 1.25rem; font-size: 0.8rem; }
.legal-footer nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 0.4rem 0.9rem; }
.legal-footer a { color: #475467; text-decoration: none; }
.legal-footer a:hover { color: var(--legal-accent); }

@media (max-width: 900px) {
    .legal-header-inner { align-items: flex-start; flex-direction: column; gap: 0.65rem; padding-block: 0.8rem; }
    .legal-top-nav { width: 100%; justify-content: flex-start; overflow-x: auto; padding-bottom: 0.1rem; }
    .legal-layout { grid-template-columns: 1fr; }
    .legal-toc { position: static; }
    .legal-toc-card nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .legal-help-card { display: none; }
}

@media (max-width: 600px) {
    .legal-container { width: min(100% - 1.2rem, 1180px); }
    .legal-brand small { display: none; }
    .legal-top-nav .home-link span { display: none; }
    .legal-hero { padding: 3rem 0; }
    .legal-layout { padding-top: 1rem; }
    .legal-toc-card nav { grid-template-columns: 1fr; }
    .legal-article { border-radius: 0.6rem; }
    .legal-definition-list { grid-template-columns: 1fr; }
    .legal-definition-list dt { border-bottom: 0; }
    .legal-contact { align-items: flex-start; flex-direction: column; }
    .legal-footer-inner { align-items: flex-start; flex-direction: column; }
    .legal-footer nav { justify-content: flex-start; }
}

@media print {
    .legal-header,
    .legal-toc,
    .legal-contact-button,
    .legal-footer { display: none !important; }
    body { background: #fff; }
    .legal-hero { padding: 1rem 0; background: #fff; }
    .legal-layout { display: block; width: 100%; padding: 0; }
    .legal-article { border: 0; padding: 0; }
}