:root {
    --ink: #172033;
    --muted: #5a6780;
    --accent: #345ef6;
    --accent-soft: #e8efff;
    --paper: #ffffff;
    --page: #f4f7fb;
    --line: #d8e0ee;
    --shadow: 0 24px 64px rgba(19, 28, 51, 0.08);
    color-scheme: light;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
}

body {
    color: var(--ink);
    background:
        linear-gradient(180deg, #eaf1ff 0%, #f8fbff 34%, #f4f7fb 100%);
    font-family: "Aptos", "Segoe UI", "Microsoft YaHei", sans-serif;
    line-height: 1.65;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    display: block;
    max-width: 100%;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 30;
    background: rgba(248, 251, 255, 0.88);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(52, 94, 246, 0.12);
}

.nav {
    width: min(1680px, calc(100vw - 40px));
    min-height: 82px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--ink);
    font-weight: 800;
}

.brand img {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    border: 1px solid rgba(52, 94, 246, 0.16);
    box-shadow: 0 10px 22px rgba(52, 94, 246, 0.16);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 700;
}

.nav-links a {
    min-height: 40px;
    display: inline-flex;
    align-items: center;
    padding: 0 14px;
    border-radius: 999px;
    color: var(--accent);
    border: 1px solid rgba(52, 94, 246, 0.18);
    background: rgba(255, 255, 255, 0.72);
    transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
    background: #ffffff;
    color: #184ae8;
    border-color: rgba(52, 94, 246, 0.34);
    outline: none;
    transform: translateY(-1px);
}

.legal-layout {
    width: min(1680px, calc(100vw - 40px));
    margin: 0 auto;
    padding: 28px 0 64px;
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
    align-items: start;
}

.legal-hero {
    position: relative;
    padding: 32px;
    border-radius: 30px;
    color: var(--ink);
    background: linear-gradient(135deg, #ffffff 0%, #edf4ff 58%, #dce9ff 100%);
    border: 1px solid rgba(52, 94, 246, 0.14);
    box-shadow: 0 24px 70px rgba(52, 94, 246, 0.12);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
}

.legal-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(58, 110, 243, 0.12), transparent 48%);
    pointer-events: none;
}

.legal-headline,
.legal-meta {
    position: relative;
    z-index: 1;
}

.legal-updated {
    display: flex;
    justify-content: space-between;
}

.eyebrow {
    margin: 0 0 16px;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 12px;
    font-weight: 800;
}

h1 {
    margin: 0;
    font-size: clamp(34px, 4vw, 60px);
    line-height: 0.96;
    letter-spacing: 0;
}

.legal-meta {
    display: grid;
    gap: 10px;
    margin-top: 18px;
    padding-top: 18px;
}

.updated {
    margin: 0;
    color: var(--muted);
    font-size: 15px;
}

.brand-line {
    margin: 0;
    color: var(--accent);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.legal-card {
    padding: clamp(26px, 3vw, 46px);
    border-radius: 30px;
    border: 1px solid var(--line);
    background: var(--paper);
    box-shadow: var(--shadow);
}

.legal-card h2 {
    margin: 28px 0 10px;
    padding-top: 2px;
    font-size: clamp(22px, 2.4vw, 30px);
    line-height: 1.15;
}

.legal-card h2:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: 0;
}

.legal-card h3 {
    margin: 20px 0 8px;
    font-size: 18px;
}

.legal-card p,
.legal-card ul {
    margin: 0 0 14px;
    color: #2f374b;
}

.legal-card ul {
    padding-left: 20px;
}

.legal-card li {
    margin: 6px 0;
}

.legal-card a,
.contact {
    color: var(--accent);
    font-weight: 800;
}

.contact {
    display: inline-flex;
    align-items: center;
    min-height: 40px;
}

footer {
    width: min(1680px, calc(100vw - 40px));
    margin: 0 auto;
    padding: 0 0 40px;
    color: var(--muted);
    font-size: 14px;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding-top: 18px;
    border-top: 1px solid var(--line);
}

.footer-inner a {
    color: var(--ink);
    font-weight: 700;
}

@media (max-width: 980px) {
    body {
        background: var(--page);
    }

    .nav,
    .legal-layout,
    footer {
        width: min(100vw - 28px, 1680px);
    }

    .nav {
        min-height: 72px;
        flex-direction: column;
        align-items: flex-start;
        padding: 14px 0;
    }

    .nav-links {
        flex-wrap: wrap;
    }

    .legal-layout {
        padding-top: 20px;
    }

    .legal-hero {
        min-height: auto;
        border-radius: 26px;
    }

    .legal-card {
        border-radius: 26px;
    }
}

@media (max-width: 560px) {
    .nav,
    .legal-layout,
    footer {
        width: min(100vw - 20px, 1680px);
    }

    .legal-hero,
    .legal-card {
        border-radius: 20px;
    }

    .footer-inner {
        flex-direction: column;
    }
}