:root {
    --repo-bg: #f0f4fa;
    --repo-card: #ffffff;
    --repo-card-2: #f8fbff;
    --repo-text: #0f172a;
    --repo-muted: #64748b;
    --repo-line: #e2e8f0;
    --repo-blue: #2563eb;
    --repo-blue-dark: #1d4ed8;
    --repo-cyan: #0891b2;
    --repo-green: #059669;
    --repo-violet: #7c3aed;
    --repo-amber: #d97706;
    --repo-shadow: 0 20px 50px -12px rgba(15, 23, 42, 0.12);
    --repo-radius: 20px;
    --font: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
    --header-h: 64px;
}
[data-theme="dark"] {
    --repo-bg: #0a0f1a;
    --repo-card: #111827;
    --repo-card-2: #1a2332;
    --repo-text: #f1f5f9;
    --repo-muted: #94a3b8;
    --repo-line: #1e293b;
    --repo-blue: #60a5fa;
    --repo-blue-dark: #3b82f6;
    --repo-cyan: #22d3ee;
    --repo-green: #34d399;
    --repo-violet: #a78bfa;
    --repo-amber: #fbbf24;
    --repo-shadow: 0 20px 50px -12px rgba(0, 0, 0, 0.45);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--font);
    background: var(--repo-bg);
    color: var(--repo-text);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}
body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(ellipse 70% 50% at 0% 0%, rgba(37, 99, 235, 0.06), transparent 50%),
        radial-gradient(ellipse 50% 40% at 100% 10%, rgba(8, 145, 178, 0.05), transparent 45%);
    z-index: 0;
}
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--header-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 clamp(16px, 4vw, 48px);
    background: color-mix(in srgb, var(--repo-card) 82%, transparent);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--repo-line);
}
.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 15px;
    letter-spacing: -0.02em;
    color: var(--repo-text);
    text-decoration: none;
    transition: color 0.2s;
}
.brand:hover { color: var(--repo-blue); }
.brand-icon {
    width: 36px;
    height: 36px;
    display: grid;
    place-items: center;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--repo-blue), var(--repo-cyan));
    color: #fff;
    font-size: 14px;
    box-shadow: 0 4px 14px color-mix(in srgb, var(--repo-blue) 35%, transparent);
}
.header-actions { display: flex; align-items: center; gap: 10px; }
.btn-icon {
    width: 40px;
    height: 40px;
    border: 1px solid var(--repo-line);
    border-radius: 12px;
    background: var(--repo-card);
    color: var(--repo-muted);
    cursor: pointer;
    transition: 0.2s;
    display: grid;
    place-items: center;
}
.btn-icon:hover { color: var(--repo-blue); border-color: var(--repo-blue); }

.page-wrap {
    position: relative;
    z-index: 1;
    max-width: 1280px;
    margin: 0 auto;
    padding: clamp(20px, 3vw, 40px) clamp(16px, 4vw, 48px) 64px;
}
.repo-page {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(ellipse 80% 50% at 0% 0%, rgba(37, 99, 235, 0.09), transparent),
        radial-gradient(ellipse 60% 40% at 100% 0%, rgba(8, 145, 178, 0.07), transparent),
        var(--repo-bg);
    border: 1px solid color-mix(in srgb, var(--repo-blue) 12%, var(--repo-line));
    border-radius: 28px;
    padding: clamp(24px, 3.5vw, 44px);
    box-shadow: var(--repo-shadow);
}
.repo-page::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--repo-blue), var(--repo-cyan), var(--repo-green));
    border-radius: 28px 28px 0 0;
}
.repo-page--copyright::before {
    background: linear-gradient(90deg, var(--repo-violet), var(--repo-blue), var(--repo-cyan));
}

.legal-nav-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 24px;
    padding: 12px 16px;
    border: 1px solid var(--repo-line);
    border-radius: 16px;
    background: var(--repo-card);
    box-shadow: 0 4px 20px rgba(15, 23, 42, 0.04);
}
.legal-nav-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--repo-muted);
}
.legal-nav-label i { color: var(--repo-blue); }
.legal-nav-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.legal-nav-pills a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: 999px;
    border: 1px solid var(--repo-line);
    background: var(--repo-card-2);
    color: var(--repo-muted);
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: 0.18s;
}
.legal-nav-pills a:hover {
    color: var(--repo-blue);
    border-color: var(--repo-blue);
    transform: translateY(-1px);
}
.legal-nav-pills a.is-active {
    background: linear-gradient(135deg, color-mix(in srgb, var(--repo-blue) 18%, transparent), color-mix(in srgb, var(--repo-cyan) 12%, transparent));
    color: var(--repo-blue);
    border-color: color-mix(in srgb, var(--repo-blue) 40%, var(--repo-line));
    box-shadow: 0 2px 10px color-mix(in srgb, var(--repo-blue) 15%, transparent);
}

.legal-hero {
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: flex-start;
    gap: clamp(20px, 3vw, 32px);
    padding: clamp(28px, 4vw, 44px);
    margin-bottom: 28px;
    border: 1px solid color-mix(in srgb, var(--repo-blue) 22%, var(--repo-line));
    border-radius: var(--repo-radius);
    background:
        radial-gradient(circle at 8% 20%, rgba(37, 99, 235, 0.14), transparent 42%),
        linear-gradient(145deg, var(--repo-card), var(--repo-card-2));
    box-shadow: var(--repo-shadow);
}
.legal-hero::after {
    content: "";
    position: absolute;
    right: -60px;
    top: -80px;
    width: 280px;
    height: 280px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(8, 145, 178, 0.08));
    pointer-events: none;
}
.legal-hero-icon {
    position: relative;
    z-index: 1;
    flex-shrink: 0;
    width: 72px;
    height: 72px;
    display: grid;
    place-items: center;
    border-radius: 20px;
    background: linear-gradient(135deg, var(--repo-blue), var(--repo-cyan));
    color: #fff;
    font-size: 28px;
    box-shadow:
        0 12px 28px color-mix(in srgb, var(--repo-blue) 35%, transparent),
        0 0 0 1px color-mix(in srgb, #fff 20%, transparent);
}
.repo-page--copyright .legal-hero-icon {
    background: linear-gradient(135deg, var(--repo-violet), var(--repo-blue));
}
.legal-hero-body { position: relative; z-index: 1; min-width: 0; flex: 1; }
.legal-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 14px;
    padding: 6px 14px;
    border-radius: 999px;
    background: color-mix(in srgb, var(--repo-blue) 12%, transparent);
    color: var(--repo-blue);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}
.legal-hero h1 {
    margin: 0;
    font-size: clamp(24px, 4vw, 38px);
    font-weight: 900;
    letter-spacing: -0.035em;
    line-height: 1.15;
    background: linear-gradient(135deg, var(--repo-text) 20%, var(--repo-blue) 120%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
[data-theme="dark"] .legal-hero h1 {
    background: linear-gradient(135deg, var(--repo-text) 10%, var(--repo-cyan) 100%);
    -webkit-background-clip: text;
    background-clip: text;
}
.legal-hero-desc {
    margin: 14px 0 0;
    max-width: 720px;
    color: var(--repo-muted);
    font-size: 15px;
    line-height: 1.75;
}

.legal-body {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.legal-row {
    display: grid;
    gap: 16px;
    align-items: stretch;
}
.legal-row--2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}
.legal-row--1 {
    grid-template-columns: minmax(0, 1fr);
}
.legal-row--2 .legal-card {
    height: 100%;
    display: flex;
    flex-direction: column;
}
.legal-row--2 .legal-card ul,
.legal-row--2 .legal-card ol {
    flex: 1;
}

.legal-card {
    position: relative;
    margin-bottom: 0;
    padding: 24px 26px 26px;
    border: 1px solid var(--repo-line);
    border-radius: 18px;
    background: var(--repo-card);
    box-shadow:
        0 4px 20px rgba(15, 23, 42, 0.04),
        0 0 0 1px color-mix(in srgb, var(--repo-blue) 4%, transparent);
    transition: border-color 0.2s, box-shadow 0.2s;
}
.legal-card:hover {
    border-color: color-mix(in srgb, var(--repo-blue) 28%, var(--repo-line));
    box-shadow:
        0 8px 28px rgba(15, 23, 42, 0.08),
        0 0 0 1px color-mix(in srgb, var(--repo-blue) 10%, transparent);
}
.legal-card::before {
    content: "";
    position: absolute;
    left: 0;
    top: 18px;
    bottom: 18px;
    width: 3px;
    border-radius: 0 4px 4px 0;
    background: linear-gradient(180deg, var(--repo-blue), var(--repo-cyan));
    opacity: 0.85;
}
.legal-card h2 {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 0 0 16px;
    padding-left: 8px;
    font-size: 17px;
    font-weight: 800;
    letter-spacing: -0.02em;
}
.legal-card h2 i {
    width: 36px;
    height: 36px;
    display: grid;
    place-items: center;
    border-radius: 12px;
    background: linear-gradient(135deg, color-mix(in srgb, var(--repo-blue) 14%, transparent), color-mix(in srgb, var(--repo-cyan) 10%, transparent));
    color: var(--repo-blue);
    font-size: 15px;
    border: 1px solid color-mix(in srgb, var(--repo-blue) 20%, var(--repo-line));
}
.legal-card h3 {
    margin: 20px 0 10px;
    padding-left: 8px;
    font-size: 15px;
    font-weight: 700;
    color: var(--repo-text);
}
.legal-card p,
.legal-card li {
    margin: 0 0 10px;
    padding-left: 8px;
    font-size: 14px;
    color: var(--repo-text);
    line-height: 1.8;
}
.legal-card a {
    color: var(--repo-blue);
    font-weight: 600;
    text-decoration: none;
}
.legal-card a:hover { text-decoration: underline; }
.legal-card ul,
.legal-card ol {
    margin: 0 0 12px;
    padding-left: calc(1.35em + 8px);
}
.legal-card li { margin-bottom: 8px; }
.legal-card li:last-child { margin-bottom: 0; }

/* 通栏卡片内：宽屏双列正文，避免单行过长 */
.legal-card--rich .legal-card-inner {
    display: grid;
    gap: 16px;
}
.legal-card--rich .legal-card-inner > ul,
.legal-card--rich .legal-card-inner > ol,
.legal-card--rich .legal-card-inner > p {
    margin: 0;
    padding-left: 8px;
}
.legal-card--rich .legal-card-inner .legal-note {
    margin-left: 8px;
    margin-top: 0;
}
@media (min-width: 720px) {
    .legal-card--rich .legal-card-inner--cols {
        grid-template-columns: 1fr 1fr;
        gap: 20px 28px;
        align-items: start;
    }
    .legal-card--rich .legal-card-inner--cols > p:first-child {
        grid-column: 1 / -1;
    }
}
.legal-card--rich .legal-steps {
    max-width: 100%;
}

.legal-note {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    margin-top: 16px;
    margin-left: 8px;
    padding: 14px 16px;
    border-radius: 14px;
    background: color-mix(in srgb, var(--repo-amber) 10%, transparent);
    border: 1px solid color-mix(in srgb, var(--repo-amber) 28%, var(--repo-line));
    font-size: 13px;
    line-height: 1.65;
    color: var(--repo-text);
}
.legal-note i {
    margin-top: 2px;
    color: var(--repo-amber);
    flex-shrink: 0;
    font-size: 16px;
}

.legal-alert {
    display: flex;
    gap: 14px;
    align-items: flex-start;
    margin: 0 0 16px;
    padding: 18px 20px;
    border-radius: 16px;
    background: color-mix(in srgb, #ef4444 8%, var(--repo-card));
    border: 1px solid color-mix(in srgb, #ef4444 28%, var(--repo-line));
    font-size: 14px;
    line-height: 1.75;
    color: var(--repo-text);
}
.legal-alert i {
    margin-top: 2px;
    color: #ef4444;
    flex-shrink: 0;
    font-size: 18px;
}
[data-theme="dark"] .legal-alert {
    background: color-mix(in srgb, #ef4444 12%, var(--repo-card));
}
.legal-alert strong { color: var(--repo-text); }

.legal-steps {
    counter-reset: step;
    list-style: none;
    padding: 0 0 0 8px;
    margin: 0;
}
.legal-steps li {
    position: relative;
    padding: 16px 16px 16px 56px;
    margin-bottom: 12px;
    border: 1px solid var(--repo-line);
    border-radius: 14px;
    background: linear-gradient(135deg, var(--repo-card-2), var(--repo-card));
    transition: border-color 0.2s;
}
.legal-steps li:hover {
    border-color: color-mix(in srgb, var(--repo-blue) 25%, var(--repo-line));
}
.legal-steps li::before {
    counter-increment: step;
    content: counter(step);
    position: absolute;
    left: 16px;
    top: 16px;
    width: 30px;
    height: 30px;
    display: grid;
    place-items: center;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--repo-blue), var(--repo-cyan));
    color: #fff;
    font-size: 13px;
    font-weight: 800;
    box-shadow: 0 4px 12px color-mix(in srgb, var(--repo-blue) 30%, transparent);
}
.legal-steps li strong {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    font-weight: 800;
}

.legal-contact-box {
    margin-left: 8px;
    padding: 18px 20px;
    border-radius: 14px;
    background: var(--repo-card-2);
    border: 1px dashed color-mix(in srgb, var(--repo-blue) 25%, var(--repo-line));
}
.legal-contact-box dt {
    font-weight: 700;
    color: var(--repo-muted);
    font-size: 11px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-top: 12px;
}
.legal-contact-box dt:first-child { margin-top: 0; }
.legal-contact-box dd {
    margin: 6px 0 0;
    color: var(--repo-text);
    font-size: 14px;
    line-height: 1.6;
}

.site-footer {
    margin-top: 36px;
    padding: 20px 24px;
    border: 1px solid var(--repo-line);
    border-radius: 16px;
    background: var(--repo-card);
    text-align: center;
    font-size: 13px;
    color: var(--repo-muted);
}
.site-footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-bottom: 10px;
}
.site-footer a {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 12px;
    border-radius: 999px;
    border: 1px solid var(--repo-line);
    background: var(--repo-card-2);
    color: var(--repo-blue);
    font-size: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: 0.18s;
}
.site-footer a:hover {
    background: color-mix(in srgb, var(--repo-blue) 12%, transparent);
    border-color: var(--repo-blue);
    text-decoration: none;
}
.site-footer-copy { margin: 0; font-size: 12px; }

@media (max-width: 900px) {
    .legal-row--2 { grid-template-columns: 1fr; }
    .legal-hero { flex-direction: column; align-items: flex-start; }
    .legal-hero-icon { width: 56px; height: 56px; font-size: 22px; border-radius: 16px; }
}
@media (max-width: 560px) {
    .repo-page { padding: 18px 16px 28px; border-radius: 20px; }
    .legal-nav-bar { flex-direction: column; align-items: stretch; }
    .legal-nav-pills { justify-content: center; }
    .legal-card { padding: 18px 16px 20px; }
}