/* 10.23 总图：FAQ y14871–16273；独立作用域，不覆盖站内其他组件。 */
.sf-faq {
  box-sizing: border-box;
  min-height: 54.8vw;
  padding: 3.8vw 0 5.4vw;
  background: #f7f7f7;
  color: #111;
  font-family: var(--sans, "PingFang SC", "Microsoft YaHei", sans-serif);
  scroll-margin-top: 0;
}
.sf-faq *, .sf-faq *::before, .sf-faq *::after { box-sizing: border-box; }
.sf-faq .sf-faq__heading { margin: 0 0 4.4vw .5%; }
.sf-faq .sf-faq__kicker { margin: 0 0 .4vw; font: 500 clamp(12px, .95vw, 24px)/1.4 var(--sans, sans-serif); }
.sf-faq .sf-faq__title { margin: 0; font: 700 clamp(30px, 2.5vw, 64px)/1.18 var(--serif, "Songti SC", "STSong", serif); letter-spacing: 0; }
.sf-faq__intro { margin: .6vw 0 0; font-size: clamp(13px, 1vw, 25px); line-height: 1.65; }
.sf-faq__layout { display: grid; grid-template-columns: 18.8% minmax(0, 1fr); gap: 2.55%; width: 93.2%; margin-left: .5%; }
.sf-faq h3 { margin: 0; font-size: clamp(18px, 1.55vw, 40px); font-weight: 650; line-height: 1.45; letter-spacing: .06em; }
.sf-faq__filters { display: flex; flex-direction: column; align-items: flex-start; gap: 1.2vw; margin-top: 1.35vw; }
.sf-faq:not([data-faq-ready="true"]) .sf-faq__filters { display: none; }
.sf-faq__filter { appearance: none; display: inline-flex; align-items: center; justify-content: center; max-width: 100%; border: 1px solid transparent; border-radius: 999px; padding: .13em .9em; background: #fff; color: #161819; font: inherit; font-size: clamp(13px, 1.06vw, 27px); line-height: 1.45; letter-spacing: .07em; white-space: nowrap; cursor: pointer; transition: background-color .16s ease, color .16s ease, border-color .16s ease; }
.sf-faq__filter:hover { border-color: #9c9c9c; }
.sf-faq__filter.is-active { background: #1a1b1c; border-color: #1a1b1c; color: #fff; }
.sf-faq__filter:focus-visible, .sf-faq summary:focus-visible, .sf-faq a:focus-visible { outline: 2px solid #555; outline-offset: 4px; }
.sf-faq .sf-faq__current { padding-bottom: .65vw; border-bottom: 1px solid #ddd; }
.sf-faq__items { padding-top: .65vw; }
.sf-faq__item { margin: 0; padding: 0; border: 0; }
.sf-faq__item summary { display: flex; align-items: flex-start; gap: .55em; list-style: none; width: 100%; padding: .52em .45em; font-size: clamp(14px, 1.01vw, 26px); line-height: 1.4; cursor: pointer; }
.sf-faq__item summary::-webkit-details-marker { display: none; }
.sf-faq__item summary::marker { content: ""; }
.sf-faq__symbol { position: relative; flex: 0 0 1.05em; width: 1.05em; height: 1.05em; margin-top: .18em; border: 1px solid currentColor; border-radius: 50%; }
.sf-faq__symbol::before, .sf-faq__symbol::after { position: absolute; display: block; content: ""; left: 19%; top: 50%; width: 62%; height: 1px; background: currentColor; transform: translateY(-50%); }
.sf-faq__symbol::after { transform: translateY(-50%) rotate(90deg); }
.sf-faq__item[open] .sf-faq__symbol::after { display: none; }
.sf-faq__answer { margin: 0 0 .45vw 2.6em; padding: 1.1vw 1.05vw; background: #fff; color: #5b5b5b; font-size: clamp(12px, .8vw, 20.5px); line-height: 1.35; }
.sf-faq__answer p, .sf-faq__empty p { margin: 0; }
.sf-faq__steps { margin: 0; padding: 0; list-style: none; }
.sf-faq__steps li { margin: 0; padding: 0; }
.sf-faq__answer a, .sf-faq__empty a { color: #171a1c; text-decoration: underline; text-underline-offset: .18em; }
.sf-faq__empty { margin-top: 1.2vw; padding: 1.2vw; background: #fff; font-size: clamp(13px, .9vw, 23px); line-height: 1.7; color: #5b5b5b; }
.sf-faq__item[hidden], .sf-faq__empty[hidden] { display: none !important; }
.sf-faq__no-script { max-width: 12em; font-size: 12px; line-height: 1.6; color: #5b5b5b; }
.sf-faq__sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
@media (min-width: 2561px) {
  .sf-faq { min-height: 1403px; padding: 97px 0 138px; }
  .sf-faq .sf-faq__heading { margin-bottom: 113px; }
  .sf-faq__filters { gap: 31px; margin-top: 35px; }
  .sf-faq__answer { padding: 28px 27px; }
}
@media (max-width: 767px) {
  .sf-faq { min-height: 0; padding: 48px 0 56px; }
  .sf-faq .sf-faq__heading { margin: 0 0 32px; }
  .sf-faq .sf-faq__kicker { margin-bottom: 5px; font-size: 12px; }
  .sf-faq .sf-faq__title { font-size: 32px; }
  .sf-faq__intro { margin-top: 10px; font-size: 14px; }
  .sf-faq__layout { grid-template-columns: minmax(0, 1fr); gap: 28px; width: 100%; margin-left: 0; }
  .sf-faq h3 { font-size: 19px; letter-spacing: .02em; }
  .sf-faq__filters { flex-direction: row; flex-wrap: wrap; gap: 10px 8px; margin-top: 14px; }
  .sf-faq__filter { padding: 6px 13px; font-size: 13px; letter-spacing: 0; }
  .sf-faq .sf-faq__current { padding-bottom: 12px; }
  .sf-faq__items { padding-top: 8px; }
  .sf-faq__item summary { padding: 12px 0; gap: 10px; font-size: 15px; line-height: 1.55; }
  .sf-faq__symbol { margin-top: .25em; }
  .sf-faq__answer { margin: 0 0 8px 0; padding: 16px; font-size: 13px; line-height: 1.7; }
  .sf-faq__steps li { margin: 3px 0; }
  .sf-faq__empty { margin-top: 16px; padding: 16px; font-size: 14px; }
}
@media (prefers-reduced-motion: reduce) {
  .sf-faq__filter { transition: none; }
}