:root {
    color-scheme: light dark;
    --legal-bg: #f7f8fa;
    --legal-surface: #ffffff;
    --legal-ink: #181b20;
    --legal-muted: #525a65;
    --legal-line: #dfe3e8;
    --legal-link: #b92f35;
    --legal-shadow: 0 24px 70px rgba(22, 28, 38, 0.08);
}

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

html {
    background: var(--legal-bg);
    scroll-behavior: smooth;
}

body {
    width: min(880px, calc(100% - 32px));
    min-height: 100vh;
    margin: 0 auto;
    padding: 48px clamp(20px, 5vw, 64px) 80px;
    color: var(--legal-ink);
    background: var(--legal-surface);
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.75;
    box-shadow: var(--legal-shadow);
}

button {
    font: inherit;
}

.skip-link {
    position: fixed;
    top: 10px;
    left: 10px;
    z-index: 20;
    padding: 9px 12px;
    border-radius: 6px;
    color: #ffffff;
    background: var(--legal-link);
    font-weight: 700;
    transform: translateY(-160%);
}

.skip-link:focus {
    transform: translateY(0);
}

.legal-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 38px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--legal-line);
}

.legal-home {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    min-height: 40px;
    color: var(--legal-ink);
    font-weight: 700;
    text-decoration: none;
}

.legal-home:hover {
    color: var(--legal-link);
}

.theme-toggle {
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    padding: 0;
    border: 1px solid var(--legal-line);
    border-radius: 8px;
    color: var(--legal-muted);
    background: var(--legal-surface);
    cursor: pointer;
}

.theme-toggle:hover {
    color: var(--legal-ink);
    border-color: var(--legal-muted);
}

.mobile-legal-page {
    padding-top: 80px;
}

.mobile-legal-page .theme-toggle {
    position: fixed;
    top: calc(env(safe-area-inset-top, 0px) + 16px);
    right: max(18px, calc((100vw - 880px) / 2 + 18px));
    z-index: 30;
    width: 44px;
    height: 44px;
    border-radius: 999px;
    color: var(--legal-ink);
    background: var(--legal-surface);
    box-shadow: 0 8px 24px rgba(22, 28, 38, 0.14);
    transition: color 180ms ease, background-color 180ms ease, border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.mobile-legal-page .theme-toggle:hover {
    border-color: var(--legal-muted);
    transform: translateY(-1px);
}

.mobile-legal-page .theme-toggle:active {
    transform: translateY(0) scale(0.96);
}

.mobile-legal-page .theme-toggle i {
    font-size: 1.05rem;
    line-height: 1;
}

:focus-visible {
    outline: 3px solid color-mix(in srgb, var(--legal-link) 60%, transparent);
    outline-offset: 3px;
}

main {
    min-width: 0;
}

h1,
h2,
h3 {
    color: var(--legal-ink);
    line-height: 1.35;
}

h1 {
    margin: 0 0 12px;
    font-size: 28px;
}

h2 {
    margin: 36px 0 12px;
    padding-bottom: 9px;
    border-bottom: 1px solid var(--legal-line);
    font-size: 22px;
}

h3 {
    margin: 28px 0 10px;
    font-size: 18px;
}

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

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

p {
    margin: 10px 0;
}

a {
    color: var(--legal-link);
    text-underline-offset: 3px;
    overflow-wrap: anywhere;
}

ul,
ol {
    margin: 10px 0 18px;
    padding-left: 24px;
}

li + li {
    margin-top: 7px;
}

.meta {
    margin-bottom: 24px;
    color: var(--legal-muted);
}

html.theme-transition body,
html.theme-transition .legal-toolbar,
html.theme-transition .theme-toggle {
    transition: color 180ms ease, background-color 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

html[data-theme="dark"] {
    --legal-bg: #0d1014;
    --legal-surface: #15191f;
    --legal-ink: #f1f3f6;
    --legal-muted: #b2bac5;
    --legal-line: #303640;
    --legal-link: #ff8588;
    --legal-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme]) {
        --legal-bg: #0d1014;
        --legal-surface: #15191f;
        --legal-ink: #f1f3f6;
        --legal-muted: #b2bac5;
        --legal-line: #303640;
        --legal-link: #ff8588;
        --legal-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
    }
}

@media (max-width: 640px) {
    body {
        width: 100%;
        padding: 30px 18px 56px;
    }

    .mobile-legal-page {
        padding-top: 76px;
    }

    .legal-toolbar {
        margin-bottom: 28px;
    }

    h1 {
        font-size: 24px;
    }

    h2 {
        font-size: 20px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    html.theme-transition body,
    html.theme-transition .legal-toolbar,
    html.theme-transition .theme-toggle {
        transition: none;
    }

    .mobile-legal-page .theme-toggle {
        transition: none;
    }
}

@media print {
    :root,
    html[data-theme="dark"] {
        --legal-bg: #ffffff;
        --legal-surface: #ffffff;
        --legal-ink: #000000;
        --legal-muted: #202020;
        --legal-line: #cccccc;
        --legal-link: #000000;
        --legal-shadow: none;
    }

    body {
        width: 100%;
        padding: 0;
    }

    .legal-toolbar,
    .skip-link {
        display: none;
    }
}