.page-faq {
  --faq-rule: rgba(30, 38, 36, .12);
  --faq-rule-soft: rgba(30, 38, 36, .07);
  --faq-notch: 16px;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  padding-top: clamp(16px, 3vw, 28px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
}

.page-faq .breadcrumb ul {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--ink-soft);
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--rule);
}

.page-faq .breadcrumb a {
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .22s ease, border-color .22s ease;
}

.page-faq .breadcrumb a:hover {
  color: var(--electric);
  border-bottom-color: var(--electric);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: clamp(24px, 4vw, 46px);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}

.page-faq .faq-hero__copy h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(32px, 7.4vw, 62px);
  font-weight: 600;
  line-height: 1.14;
  letter-spacing: .01em;
  color: var(--ink);
}

.page-faq .faq-hero__lead {
  max-width: 56ch;
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  font-size: clamp(15px, 2.6vw, 17px);
  line-height: 1.9;
  color: var(--ink-soft);
}

.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;
}

.page-faq .faq-hero__figure img {
  filter: saturate(.9);
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: 1.12fr .88fr;
    align-items: center;
  }
}

/* ---------- 章节题头 ---------- */
.page-faq .faq-head {
  max-width: 62ch;
  margin-bottom: clamp(24px, 3.6vw, 40px);
}

.page-faq .faq-head h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(26px, 4.6vw, 38px);
  font-weight: 600;
  line-height: 1.25;
  color: var(--ink);
}

.page-faq .faq-head__sub {
  margin: 12px 0 0;
  font-size: clamp(14px, 2.4vw, 16px);
  line-height: 1.85;
  color: var(--ink-soft);
}

/* ---------- 索引卡片 ---------- */
.page-faq .faq-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px 22px 26px;
  background: var(--white);
  color: var(--ink);
  text-decoration: none;
  clip-path: polygon(0 0,
      calc(100% - var(--faq-notch)) 0,
      100% var(--faq-notch),
      100% 100%,
      var(--faq-notch) 100%,
      0 calc(100% - var(--faq-notch)));
  transition: background .26s ease, transform .26s ease;
}

.page-faq .faq-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: var(--faq-notch);
  width: 3px;
  background: var(--electric);
  transition: width .26s ease, background .26s ease;
}

.page-faq .faq-card:nth-child(2)::before { background: var(--summer); }
.page-faq .faq-card:nth-child(3)::before { background: var(--autumn); }
.page-faq .faq-card:nth-child(4)::before { background: var(--violet); }
.page-faq .faq-card:nth-child(5)::before { background: var(--spring); }

.page-faq .faq-card:hover {
  background: var(--mist);
  transform: translateY(-3px);
}

.page-faq .faq-card:hover::before {
  width: 5px;
}

.page-faq .faq-card__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--ink-soft);
}

.page-faq .faq-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 3.4vw, 24px);
  font-weight: 600;
  color: var(--ink);
}

.page-faq .faq-card p {
  margin: 0;
  flex: 1;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-faq .faq-card__count {
  margin-top: 4px;
  font-family: var(--font-narrow);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--ink);
  border-bottom: 1px solid var(--faq-rule);
  align-self: flex-start;
  padding-bottom: 2px;
}

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

@media (min-width: 1000px) {
  .page-faq .faq-cards {
    grid-template-columns: repeat(6, 1fr);
    gap: 18px;
  }

  .page-faq .faq-card:nth-child(1),
  .page-faq .faq-card:nth-child(2) {
    grid-column: span 3;
  }

  .page-faq .faq-card:nth-child(3),
  .page-faq .faq-card:nth-child(4),
  .page-faq .faq-card:nth-child(5) {
    grid-column: span 2;
  }

  .page-faq .faq-card:nth-child(5) {
    transform: translateY(16px);
  }

  .page-faq .faq-card:nth-child(5):hover {
    transform: translateY(12px);
  }
}

/* ---------- 三步路径 ---------- */
.page-faq .faq-path {
  background: linear-gradient(180deg, rgba(232, 230, 224, .55), rgba(247, 244, 238, 0));
}

.page-faq .faq-path__inner {
  display: grid;
  gap: clamp(28px, 4vw, 54px);
}

.page-faq .faq-path__copy h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(26px, 4.8vw, 40px);
  font-weight: 600;
  line-height: 1.24;
  color: var(--ink);
}

.page-faq .faq-path__copy > p {
  max-width: 50ch;
  margin: 14px 0 0;
  font-size: clamp(14px, 2.4vw, 16px);
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-faq .faq-steps {
  position: relative;
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 18px;
}

.page-faq .faq-steps::before {
  content: "";
  position: absolute;
  left: 11px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--spring), var(--summer), var(--autumn), var(--winter-deep));
  opacity: .55;
}

.page-faq .faq-step {
  position: relative;
  padding: 0 0 0 36px;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 6px;
  width: 16px;
  height: 16px;
  background: var(--paper);
  border: 2px solid var(--electric);
  transform: rotate(45deg);
}

.page-faq .faq-step:nth-child(1)::before { border-color: var(--spring); }
.page-faq .faq-step:nth-child(2)::before { border-color: var(--summer); }
.page-faq .faq-step:nth-child(3)::before { border-color: var(--autumn); }

.page-faq .faq-step__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--ink-soft);
}

.page-faq .faq-step h3 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: clamp(18px, 3.2vw, 22px);
  font-weight: 600;
  color: var(--ink);
}

.page-faq .faq-step p {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--ink-soft);
}

.page-faq .faq-step__link {
  display: inline-block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--electric);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-rule);
  padding-bottom: 2px;
  transition: border-color .22s ease, color .22s ease;
}

.page-faq .faq-step__link:hover {
  color: var(--violet);
  border-bottom-color: var(--violet);
}

.page-faq .faq-path__figure {
  margin: 0;
  align-self: start;
}

@media (min-width: 900px) {
  .page-faq .faq-path__inner {
    grid-template-columns: 1.2fr .8fr;
    align-items: start;
  }

  .page-faq .faq-path__figure {
    margin-top: 46px;
  }
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-answers {
  padding-top: clamp(20px, 3vw, 32px);
}

.page-faq .faq-group {
  margin-bottom: clamp(30px, 4.6vw, 52px);
  scroll-margin-top: 90px;
}

.page-faq .faq-group:last-child {
  margin-bottom: 0;
}

.page-faq .faq-group__title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 0 0 18px;
  font-size: 16px;
  font-weight: 500;
}

.page-faq .faq-group__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--ink-soft);
}

.page-faq .faq-item {
  margin-bottom: 10px;
  background: var(--white);
  clip-path: polygon(0 0,
      calc(100% - 14px) 0,
      100% 14px,
      100% 100%,
      14px 100%,
      0 calc(100% - 14px));
  transition: background .24s ease;
}

.page-faq .faq-item:hover {
  background: var(--mist);
}

.page-faq .faq-item[open] {
  background: var(--white);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
}

.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item summary::marker {
  content: "";
}

.page-faq .faq-item__no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--electric);
}

.page-faq .faq-item__q {
  flex: 1;
  font-size: clamp(15px, 2.6vw, 17px);
  line-height: 1.6;
  font-weight: 500;
  color: var(--ink);
}

.page-faq .faq-item__q::after {
  content: "＋";
  float: right;
  margin-left: 12px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--ink-soft);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "－";
  color: var(--violet);
}

.page-faq .faq-item__a {
  padding: 0 20px 20px 20px;
  border-top: 1px solid var(--faq-rule-soft);
  margin: 0 0 0 0;
}

.page-faq .faq-item__a p {
  margin: 14px 0 0;
  max-width: 68ch;
  font-size: 14.5px;
  line-height: 1.88;
  color: var(--ink-soft);
}

.page-faq .faq-item__link {
  display: inline-block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--summer);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-rule);
  padding-bottom: 2px;
  transition: color .22s ease, border-color .22s ease;
}

.page-faq .faq-item__link:hover {
  color: var(--violet);
  border-bottom-color: var(--violet);
}

/* ---------- 客服准备与自助查询 ---------- */
.page-faq .faq-prepare__inner {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-faq .faq-prepare__panel,
.page-faq .faq-lookup {
  padding: clamp(24px, 3.6vw, 40px);
}

.page-faq .faq-prepare__panel h2,
.page-faq .faq-lookup h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.8vw, 30px);
  font-weight: 600;
  line-height: 1.28;
  color: var(--ink);
}

.page-faq .faq-prepare__panel > p,
.page-faq .faq-lookup > p {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-faq .faq-prepare__list,
.page-faq .faq-lookup__list {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-faq .faq-prepare__list li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--ink);
  border-top: 1px solid var(--faq-rule-soft);
  padding-top: 14px;
}

.page-faq .faq-prepare__no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--autumn);
}

.page-faq .faq-lookup__list li {
  display: grid;
  gap: 6px;
  border-top: 1px solid var(--faq-rule-soft);
  padding-top: 14px;
}

.page-faq .faq-lookup__list strong {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  color: var(--winter-deep);
}

.page-faq .faq-lookup__list span {
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--ink-soft);
}

.page-faq .faq-lookup__contact {
  margin-top: clamp(22px, 3vw, 30px);
  padding-top: 20px;
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-lookup__contact p {
  margin: 0 0 16px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-faq .faq-mail {
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--winter-deep);
  word-break: break-all;
}

@media (min-width: 900px) {
  .page-faq .faq-prepare__inner {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .page-faq .faq-lookup {
    margin-top: 42px;
  }
}

/* ---------- 窄屏兜底 ---------- */
@media (max-width: 480px) {
  .page-faq .faq-item summary {
    padding: 16px 16px;
    gap: 10px;
  }

  .page-faq .faq-item__a {
    padding: 0 16px 18px 16px;
  }

  .page-faq .faq-step {
    padding-left: 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-card,
  .page-faq .faq-card::before,
  .page-faq .faq-item,
  .page-faq .faq-step__link,
  .page-faq .faq-item__link {
    transition: none;
  }

  .page-faq .faq-card:hover,
  .page-faq .faq-card:nth-child(5),
  .page-faq .faq-card:nth-child(5):hover {
    transform: none;
  }
}