/* ============ 页面基础（全部限定在 .ffp-faq 内，避免影响全站） ============ */
  .ffp-faq{--brand:#1F3F86;--brand-700:#18336E;--brand-600:#2B54A6;--brand-300:#8FA9DC;--brand-050:#EDF2FB;
    --accent:#C9A227;--accent-050:#FBF4E0;--ok:#1E7F62;--ink:#152340;--muted:#54637E;--line:#D9E2F1;
    --bg:#F5F7FC;--card:#FFFFFF;--radius:14px;--maxw:1140px;
    --shadow:0 1px 2px rgba(21,35,64,.06), 0 10px 28px rgba(31,63,134,.08);
    background:var(--bg);color:var(--ink);font-size:19px;line-height:1.75;
    font-family:"Segoe UI",Roboto,"Helvetica Neue","Microsoft YaHei",Arial,sans-serif;-webkit-text-size-adjust:100%}
  .ffp-faq *,.ffp-faq *::before,.ffp-faq *::after{box-sizing:border-box}
  .ffp-faq .wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
  .ffp-faq .hero{padding:56px 0 34px;border-bottom:1px solid var(--line)}
  .ffp-faq .kicker{display:inline-block;font-size:13.5px;letter-spacing:.09em;text-transform:uppercase;font-weight:700;
    color:var(--brand-600);background:var(--brand-050);border:1px solid var(--line);border-radius:999px;padding:5px 13px;margin-bottom:16px}
  .ffp-faq h1{font-size:37px;line-height:1.22;margin:0 0 14px;font-weight:800;letter-spacing:-.01em}
  .ffp-faq .lede{font-size:19px;color:var(--muted);margin:0;max-width:78ch}
  .ffp-faq section{padding:34px 0}
  .ffp-faq .sec-head{border-left:4px solid var(--brand);padding-left:15px;margin-bottom:20px}
  .ffp-faq h2{font-size:25px;line-height:1.3;margin:0 0 6px;font-weight:750;color:var(--brand-700)}
  .ffp-faq .sec-sub{margin:0;color:var(--muted);font-size:16.5px}
  /* ============ 问答折叠卡 ============ */
  .ffp-faq details.q{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
    box-shadow:var(--shadow);margin-bottom:12px;overflow:hidden}
  .ffp-faq summary.q-head{list-style:none;cursor:pointer;padding:16px 20px;display:grid;
    grid-template-columns:1fr auto;gap:4px 18px;align-items:center;
    background:linear-gradient(90deg,var(--brand-050),#fff)}
  .ffp-faq summary.q-head::-webkit-details-marker{display:none}
  .ffp-faq summary.q-head:hover{background:linear-gradient(90deg,#E2EAFA,#fff)}
  .ffp-faq .q-title{font-weight:700;font-size:17.5px;color:var(--ink)}
  .ffp-faq .q-cue{font-size:13.5px;color:var(--brand-600);white-space:nowrap}
  .ffp-faq .q-cue::after{content:"";display:inline-block;width:8px;height:8px;margin-left:9px;
    border-right:2px solid var(--brand-600);border-bottom:2px solid var(--brand-600);
    transform:rotate(45deg) translate(-2px,-2px)}
  .ffp-faq details.q[open] .q-cue::after{transform:rotate(-135deg) translate(-2px,-2px)}
  .ffp-faq details.q[open]>summary.q-head{border-bottom:1px solid var(--line)}
  .ffp-faq .when-open{display:none}
  .ffp-faq details.q[open] .when-closed{display:none}
  .ffp-faq details.q[open] .when-open{display:inline}
  .ffp-faq .q-body{padding:16px 20px 20px;color:#2A3A57;font-size:17px;line-height:1.74}
  .ffp-faq .q-body p{margin:0 0 10px}
  .ffp-faq .q-body p:last-child{margin-bottom:0}
  .ffp-faq ul.plain{margin:0;padding:0;list-style:none}
  .ffp-faq ul.plain li{margin:0 0 8px}
  .ffp-faq ul.plain li:last-child{margin-bottom:0}
  /* ============ 联系块 ============ */
  .ffp-faq .contact{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
    box-shadow:var(--shadow);padding:24px 26px;display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px 34px}
  .ffp-faq .contact h3{font-size:18px;margin:0 0 12px;color:var(--brand-700);font-weight:750}
  .ffp-faq .contact p{margin:0 0 12px;color:var(--muted);font-size:16.5px}
  .ffp-faq .contact p:last-child{margin-bottom:0}
  .ffp-faq .contact dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:7px 14px;font-size:16.5px}
  .ffp-faq .contact dt{color:var(--muted)}
  .ffp-faq .contact dd{margin:0;font-weight:600;color:var(--ink)}
  .ffp-faq .contact .dim{color:var(--muted);font-weight:400}
  .ffp-faq .contact a{color:var(--brand-600);text-decoration:none;border-bottom:1px solid var(--brand-300)}
  .ffp-faq .contact p.note{font-size:15.5px;color:var(--muted)}
  .ffp-faq a.btn{display:inline-block;background:var(--brand);color:#fff;text-decoration:none;font-weight:700;
    font-size:16.5px;padding:11px 20px;border-radius:10px;border-bottom:0}
  /* ============ 窄屏 ============ */
  @media (max-width:820px){
    .ffp-faq{font-size:17.5px}
    .ffp-faq .hero{padding:36px 0 24px}
    .ffp-faq h1{font-size:29px}
    .ffp-faq h2{font-size:21px}
    .ffp-faq summary.q-head{grid-template-columns:1fr;padding:15px 16px}
    .ffp-faq .q-body{padding:14px 16px 18px}
    .ffp-faq .contact{grid-template-columns:1fr;padding:20px}
  }
  @media print{.ffp-faq details.q{break-inside:avoid}.ffp-faq .q-body{display:block!important}}