/* ============ 支持中心 · page-faq ============ */
.page-faq {
  --faq-line: rgba(28, 69, 112, .16);
  --faq-line-soft: rgba(28, 69, 112, .09);
  --faq-ink-soft: rgba(22, 32, 44, .72);
  --faq-on-dark: rgba(244, 248, 252, .72);
  --faq-on-dark-line: rgba(168, 245, 238, .22);
  --faq-block-pad: clamp(46px, 6vw, 88px);
}

/* ---------- 首屏：工具台式入口 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-bottom: clamp(36px, 5vw, 68px);
}

.page-faq .faq-hero .sf-shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  align-items: center;
  margin-top: clamp(20px, 3vw, 36px);
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

.page-faq .faq-hero__copy .sf-display {
  margin: 10px 0 0;
}

.page-faq .faq-hero__copy .sf-lede {
  margin-top: 16px;
  max-width: 40ch;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-faq .faq-hero__figure {
  margin: 0;
  border-radius: var(--sf-radius-organic);
  border: 1px solid var(--faq-on-dark-line);
  box-shadow: var(--sf-shadow-2);
  overflow: hidden;
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 分类快捷入口 ---------- */
.page-faq .faq-index {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: clamp(32px, 4.6vw, 58px);
}

@media (min-width: 620px) {
  .page-faq .faq-index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-index {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

.page-faq .faq-index__link {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 18px 18px 18px 22px;
  border-radius: var(--sf-radius-s);
  border: 1px solid var(--faq-on-dark-line);
  background: rgba(13, 42, 74, .74);
  color: var(--sf-paper);
  text-decoration: none;
  transition: transform .18s var(--sf-ease),
              border-color .18s var(--sf-ease),
              background-color .18s var(--sf-ease);
}

.page-faq .faq-index__link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 15px;
  bottom: 15px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: linear-gradient(180deg, var(--sf-cyan), var(--sf-orange));
  opacity: .6;
  transition: opacity .18s var(--sf-ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  transform: translateY(-2px);
  border-color: var(--sf-cyan);
  background: rgba(28, 69, 112, .92);
}

.page-faq .faq-index__link:hover::before,
.page-faq .faq-index__link:focus-visible::before {
  opacity: 1;
}

.page-faq .faq-index__num {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--sf-cyan);
}

.page-faq .faq-index__label {
  font-size: 15px;
  font-weight: 700;
  line-height: 1.4;
}

.page-faq .faq-index__meta {
  font-size: 12px;
  line-height: 1.5;
  color: var(--faq-on-dark);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-block {
  position: relative;
  padding-block: var(--faq-block-pad);
}

.page-faq .faq-block--tint {
  background: linear-gradient(180deg, var(--sf-cyan-soft) 0%, var(--sf-paper) 88%);
}

.page-faq .faq-block__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  margin-bottom: clamp(24px, 3.4vw, 40px);
}

@media (min-width: 640px) {
  .page-faq .faq-block__head {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 4px clamp(18px, 2.4vw, 30px);
    align-items: baseline;
  }
  .page-faq .faq-block__lede {
    grid-column: 2;
  }
}

.page-faq .faq-block__num {
  font-size: clamp(26px, 3.6vw, 42px);
  font-weight: 600;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--sf-cyan-2);
}

.page-faq .faq-block__lede {
  margin: 0;
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--faq-ink-soft);
}

/* 分组配色节奏 */
.page-faq #prep .faq-block__num { color: var(--sf-cyan-2); }
.page-faq #track .faq-block__num { color: var(--sf-orange-2); }
.page-faq #member .faq-block__num { color: var(--sf-indigo); }
.page-faq #aftercare .faq-block__num { color: var(--sf-wine); }
.page-faq #help .faq-block__num { color: var(--sf-cyan); }

/* ---------- 时效分组：正文 + 轨迹视觉 ---------- */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 3.4vw, 44px);
  align-items: start;
}

@media (min-width: 960px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
  .page-faq .faq-split__figure {
    position: sticky;
    top: calc(var(--sf-header-h) + 24px);
  }
}

.page-faq .faq-split__figure {
  margin: 0;
  border-radius: var(--sf-radius-m);
  overflow: hidden;
  border: 1px solid var(--faq-line-soft);
  box-shadow: var(--sf-shadow-1);
}

.page-faq .faq-split__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 手风琴细节 ---------- */
.page-faq .sf-acc__num {
  font-family: var(--sf-font-mono);
  font-weight: 600;
  color: var(--sf-cyan-2);
}

.page-faq .sf-acc__body p {
  margin: 0 0 12px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--faq-ink-soft);
}

.page-faq .sf-acc__body p:last-child {
  margin-bottom: 0;
}

.page-faq .sf-acc__body a {
  color: var(--sf-cyan-2);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .sf-acc__body a:hover {
  color: var(--sf-orange-2);
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  font-size: 15px;
  line-height: 1.7;
  color: var(--faq-ink-soft);
}

.page-faq .faq-steps li > span {
  font-size: 13px;
  padding-top: 3px;
  color: var(--sf-orange-2);
}

/* ---------- 联系区块 ---------- */
.page-faq .faq-contact {
  overflow: hidden;
}

.page-faq .faq-contact .sf-shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-contact .sf-h2 {
  color: var(--sf-paper);
}

.page-faq .faq-contact .faq-block__lede {
  color: var(--faq-on-dark);
}

.page-faq .faq-contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

@media (min-width: 760px) {
  .page-faq .faq-contact__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .faq-contact__card {
  padding: 22px;
  border-radius: var(--sf-radius-m);
  border: 1px solid var(--faq-on-dark-line);
  background: linear-gradient(158deg, rgba(13, 42, 74, .94), rgba(6, 26, 51, .94));
  transition: transform .18s var(--sf-ease), border-color .18s var(--sf-ease);
}

.page-faq .faq-contact__card:hover {
  transform: translateY(-2px);
  border-color: var(--sf-cyan);
}

.page-faq .faq-contact__k {
  display: inline-block;
  font-family: var(--sf-font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--sf-cyan);
}

.page-faq .faq-contact__v {
  margin: 10px 0 12px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--sf-paper);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact__v--mono {
  font-family: var(--sf-font-mono);
  font-weight: 600;
  letter-spacing: .01em;
}

.page-faq .faq-contact__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--faq-on-dark);
}

.page-faq .faq-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: clamp(26px, 3.4vw, 40px);
}

/* ---------- 窄屏保护 ---------- */
@media (max-width: 480px) {
  .page-faq .faq-hero__actions .sf-btn {
    flex: 1 1 100%;
    justify-content: center;
  }
  .page-faq .faq-contact__actions .sf-btn {
    flex: 1 1 100%;
    justify-content: center;
  }
  .page-faq .faq-steps li {
    grid-template-columns: 24px minmax(0, 1fr);
    gap: 8px;
  }
}