/* Trang công khai (phiếu 020): điều khoản, bảo mật, hướng dẫn. Đọc được trên điện thoại; chữ dễ đọc (16px, dòng 1.7). */
:root { --pp-ink: #1f2430; --pp-muted: #5d6474; --pp-line: #e7e8ee; --pp-accent: #7367f0; --pp-bg: #f8f8fb; }
* { box-sizing: border-box; }
body { margin: 0; font-family: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", sans-serif; color: var(--pp-ink); background: #fff; font-size: 16px; line-height: 1.7; }
a { color: var(--pp-accent); }
.pp-wrap { max-width: 880px; margin: 0 auto; padding: 0 20px; }
.pp-top { position: sticky; top: 0; background: rgba(255,255,255,.94); backdrop-filter: blur(8px); border-bottom: 1px solid var(--pp-line); z-index: 10; }
.pp-top-in { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 64px; flex-wrap: wrap; }
.pp-brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; color: var(--pp-ink); text-decoration: none; font-size: 18px; }
.pp-mark { width: 32px; height: 32px; border-radius: 9px; background: var(--pp-accent); color: #fff; display: inline-flex; align-items: center; justify-content: center; font-weight: 800; }
.pp-nav { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; font-size: 15px; }
.pp-nav a { color: var(--pp-muted); text-decoration: none; }
.pp-nav a:hover { color: var(--pp-ink); }
.pp-nav .pp-btn { color: #fff; background: var(--pp-accent); padding: 7px 16px; border-radius: 999px; }
.pp-main { padding-top: 40px; padding-bottom: 56px; }
.pp-main h1 { font-size: 32px; line-height: 1.25; margin: 0 0 6px; }
.pp-sub { color: var(--pp-muted); margin: 0 0 32px; }
.pp-main h2 { font-size: 21px; margin: 36px 0 10px; scroll-margin-top: 80px; }
.pp-main h3 { font-size: 17px; margin: 22px 0 6px; }
.pp-main ul, .pp-main ol { padding-left: 22px; }
.pp-main li { margin: 4px 0; }
.pp-note { background: var(--pp-bg); border-left: 3px solid var(--pp-accent); padding: 10px 14px; border-radius: 6px; color: var(--pp-muted); }
.pp-toc { background: var(--pp-bg); border-radius: 12px; padding: 16px 20px; margin-bottom: 8px; }
.pp-toc ol { margin: 6px 0 0; }
.pp-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; margin: 18px 0 8px; }
.pp-card { display: block; border: 1px solid var(--pp-line); border-radius: 12px; padding: 14px 16px; text-decoration: none; color: var(--pp-ink); }
.pp-card:hover { border-color: var(--pp-accent); }
.pp-card strong { display: block; }
.pp-card span { color: var(--pp-muted); font-size: 14px; }
.pp-foot { border-top: 1px solid var(--pp-line); background: var(--pp-bg); padding: 28px 0; font-size: 14px; color: var(--pp-muted); }
.pp-foot p { margin: 2px 0; }
.pp-legal-name { font-weight: 700; color: var(--pp-ink); }
.pp-foot-links { margin-top: 12px !important; }
@media (max-width: 600px) { .pp-main h1 { font-size: 26px; } .pp-nav { gap: 12px; font-size: 14px; } }