:root {
    color-scheme: light;
    --ink: #0f172a;
    --muted: #64748b;
    --line: #e2e8f0;
    --soft: #f8fafc;
    --brand: #2563eb;
    --brand-soft: #eff6ff;
    --warning: #92400e;
    --warning-soft: #fffbeb;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--soft);
    color: var(--ink);
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    font-size: 16px;
    line-height: 1.8;
}

a { color: var(--brand); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }

.legal-nav {
    position: sticky;
    top: 0;
    z-index: 10;
    border-bottom: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(10px);
}

.legal-nav-inner {
    width: min(920px, calc(100% - 32px));
    min-height: 64px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.legal-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--ink);
    font-weight: 700;
    text-decoration: none;
}

.legal-brand img {
    width: 34px;
    height: 34px;
    border: 1px solid var(--line);
    border-radius: 9px;
}

.legal-nav-links { display: flex; flex-wrap: wrap; gap: 14px; font-size: 14px; }
.legal-nav-links a { color: #475569; text-decoration: none; }

.legal-main {
    width: min(920px, calc(100% - 32px));
    margin: 36px auto 60px;
    padding: clamp(24px, 5vw, 52px);
    border: 1px solid var(--line);
    border-radius: 20px;
    background: #fff;
    box-shadow: 0 18px 55px rgba(15, 23, 42, 0.06);
}

.legal-title { margin: 0; text-align: center; font-size: clamp(28px, 5vw, 38px); line-height: 1.3; }
.legal-meta { margin: 12px 0 34px; color: var(--muted); text-align: center; font-size: 14px; }

.legal-summary {
    margin: 0 0 30px;
    padding: 18px 20px;
    border-left: 4px solid var(--brand);
    border-radius: 10px;
    background: var(--brand-soft);
}

.legal-warning {
    margin: 22px 0;
    padding: 16px 18px;
    border: 1px solid #fde68a;
    border-radius: 10px;
    background: var(--warning-soft);
    color: var(--warning);
}

h2 { margin: 38px 0 14px; font-size: 22px; line-height: 1.45; }
h3 { margin: 26px 0 10px; font-size: 17px; line-height: 1.55; }
p { margin: 10px 0; }
ul, ol { padding-left: 1.35em; }
li + li { margin-top: 7px; }
strong { color: #111827; }

.legal-table-wrap { width: 100%; overflow-x: auto; margin: 18px 0 26px; }
.legal-table { width: 100%; min-width: 720px; border-collapse: collapse; font-size: 14px; line-height: 1.65; }
.legal-table th, .legal-table td { padding: 12px 13px; border: 1px solid var(--line); text-align: left; vertical-align: top; }
.legal-table th { background: #f1f5f9; white-space: nowrap; }

.legal-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 4px; }
.legal-button {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 18px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: #fff;
    color: #334155;
    font: inherit;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
}
.legal-button.primary { border-color: var(--brand); background: var(--brand); color: #fff; }
.legal-button:disabled { cursor: not-allowed; opacity: 0.55; }

.legal-form { display: grid; gap: 16px; margin-top: 24px; }
.legal-field { display: grid; gap: 7px; }
.legal-field label { font-size: 14px; font-weight: 650; }
.legal-field input, .legal-field textarea {
    width: 100%;
    min-height: 46px;
    padding: 11px 13px;
    border: 1px solid #cbd5e1;
    border-radius: 10px;
    background: #fff;
    color: var(--ink);
    font: inherit;
}
.legal-field textarea { min-height: 96px; resize: vertical; }
.legal-field input:focus, .legal-field textarea:focus { outline: 3px solid #dbeafe; border-color: var(--brand); }
.legal-check { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; }
.legal-check input { width: 18px; height: 18px; margin-top: 5px; flex: 0 0 auto; }
.legal-status { min-height: 26px; font-size: 14px; }
.legal-status.error { color: #b91c1c; }
.legal-status.success { color: #047857; }

.legal-footer {
    padding: 0 16px 42px;
    color: var(--muted);
    text-align: center;
    font-size: 13px;
}

@media (max-width: 640px) {
    .legal-nav-inner { min-height: 58px; }
    .legal-nav-links { display: none; }
    .legal-main { width: min(100% - 20px, 920px); margin-top: 14px; border-radius: 14px; }
    .legal-summary { padding: 15px 16px; }
}