/* ============================================================
   问答中心 · /questions/
   ============================================================ */

.page-faq {
  display: block;
  width: 100%;
  padding: clamp(20px, 3vw, 40px) clamp(16px, 3.2vw, 48px) clamp(72px, 9vw, 112px);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  font-weight: 500;
  line-height: 1.9;
  background-color: var(--paper);
  overflow-x: hidden;
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
}

.page-faq h1,
.page-faq h2,
.page-faq h3 {
  margin: 0;
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.28;
}

.page-faq p {
  margin: 0;
}

.page-faq a {
  color: var(--cyan);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-faq .faq-inline {
  margin-top: 22px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--gray);
}

.page-faq .faq-footnote {
  margin-top: 26px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.8;
  color: var(--gray);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  display: grid;
  gap: 30px;
  padding-bottom: clamp(30px, 4.5vw, 54px);
  border-bottom: 2px solid var(--ink);
}

.page-faq h1 {
  margin-top: 14px;
  font-size: clamp(30px, 5vw, 56px);
  line-height: 1.13;
}

.page-faq .lede {
  max-width: 36em;
  margin-top: 18px;
  font-size: clamp(16px, 1.35vw, 18px);
  line-height: 1.9;
  color: var(--ink);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero__panel {
  padding: 20px 18px 18px;
  background-color: var(--cyan-deep);
  border-left: 3px solid var(--red);
}

.page-faq .faq-hero__panel-title {
  margin: 0;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--cyan-mist);
}

.page-faq .faq-hero__flow {
  display: block;
  width: 100%;
  height: 32px;
  margin: 12px 0 16px;
  opacity: 0.85;
}

.page-faq .faq-figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background-color: rgba(252, 251, 249, 0.18);
}

.page-faq .faq-figure {
  padding: 13px 12px 14px;
  background-color: var(--cyan-deep);
}

.page-faq .faq-figure__label {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--cyan-mist);
}

.page-faq .faq-figure__value {
  margin: 6px 0 0;
  font-family: var(--mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--paper);
}

/* ---------- 主体外壳 ---------- */

.page-faq .faq-shell {
  display: block;
  margin-top: clamp(30px, 4vw, 52px);
}

.page-faq .faq-flow {
  min-width: 0;
}

/* ---------- 左侧目录 ---------- */

.page-faq .faq-toc {
  margin: 0 0 28px;
  padding-top: 12px;
  border-top: 2px solid var(--ink);
}

.page-faq .faq-toc__title {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--gray);
}

.page-faq .faq-toc__list {
  display: flex;
  gap: 4px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.page-faq .faq-toc__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-toc__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 12px;
  font-size: 14px;
  line-height: 1.5;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
  background-color: transparent;
  transition: background-color var(--t) var(--ease), color var(--t) var(--ease);
}

.page-faq .faq-toc__link:hover {
  background-color: var(--red-mist);
  color: var(--red);
}

.page-faq .faq-toc__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-toc__num {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--gray);
}

.page-faq .faq-toc__link:hover .faq-toc__num {
  color: var(--red);
}

/* ---------- 章节 ---------- */

.page-faq .faq-section {
  padding-top: clamp(34px, 4.5vw, 54px);
  margin-top: clamp(34px, 4.5vw, 54px);
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-h) + 28px);
}

.page-faq .faq-section:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.page-faq .faq-head {
  max-width: 42em;
}

.page-faq .faq-head h2 {
  margin-top: 12px;
  font-size: clamp(23px, 3vw, 34px);
}

.page-faq .faq-head__lede {
  margin-top: 14px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--gray);
}

/* ---------- 配图 ---------- */

.page-faq .faq-media {
  margin: 26px 0 0;
}

.page-faq .faq-media__img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background-color: var(--cyan-mist);
}

.page-faq .faq-media__caption {
  margin: 10px 0 0;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--gray);
}

/* ---------- 四类问题 ---------- */

.page-faq .faq-cats {
  display: grid;
  gap: 18px;
  margin-top: 28px;
}

.page-faq .faq-cat {
  padding: 20px 20px 10px;
  background-color: var(--paper);
  border: 1px solid var(--line);
  border-left: 3px solid var(--red);
  transition: border-color var(--t) var(--ease);
}

.page-faq .faq-cat:hover {
  border-color: var(--line-mid);
  border-left-color: var(--red);
}

.page-faq .faq-cat__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-cat__num {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--red);
}

.page-faq .faq-cat__name {
  font-size: 21px;
}

.page-faq .faq-cat__count {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--gray);
}

.page-faq .faq-cat__note {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--gray);
}

/* ---------- 折叠问答 ---------- */

.page-faq .faq-list {
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item:last-child {
  border-bottom: 0;
}

.page-faq .faq-q {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-q__num {
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-faq .faq-q__body {
  display: block;
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-q__text {
  display: block;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink);
  transition: color var(--t) var(--ease);
}

.page-faq .faq-q:hover .faq-q__text {
  color: var(--red);
}

.page-faq .faq-q__hint {
  display: block;
  margin-top: 3px;
  font-size: 15px;
  font-weight: 500;
  line-height: 1.72;
  color: var(--gray);
}

.page-faq .faq-q__icon {
  position: relative;
  flex: 0 0 auto;
  align-self: center;
  width: 14px;
  height: 14px;
  margin-left: auto;
}

.page-faq .faq-q__icon::before,
.page-faq .faq-q__icon::after {
  content: "";
  position: absolute;
  background-color: var(--red);
  transition: transform var(--t) var(--ease), opacity var(--t) var(--ease);
}

.page-faq .faq-q__icon::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .faq-q__icon::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
}

.page-faq .faq-item[open] .faq-q__icon::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-a {
  padding: 2px 0 20px 44px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink);
}

.page-faq .faq-a p + p {
  margin-top: 10px;
}

.page-faq .faq-steps {
  margin: 0 0 10px;
  padding: 0;
  list-style: none;
  counter-reset: fs;
}

.page-faq .faq-steps li {
  position: relative;
  padding-left: 26px;
  margin-top: 8px;
  counter-increment: fs;
}

.page-faq .faq-steps li:first-child {
  margin-top: 0;
}

.page-faq .faq-steps li::before {
  content: counter(fs, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.9;
  color: var(--red);
}

/* ---------- 新手六步 ---------- */

.page-faq .guide-steps {
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
  border-top: 2px solid var(--ink);
}

.page-faq .guide-step {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  grid-template-areas:
    "num body"
    ". time";
  column-gap: 12px;
  row-gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .guide-step__num {
  grid-area: num;
  font-family: var(--mono);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--red);
}

.page-faq .guide-step__body {
  grid-area: body;
  min-width: 0;
}

.page-faq .guide-step__title {
  font-size: 18px;
}

.page-faq .guide-step__desc {
  margin-top: 6px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

.page-faq .guide-step__result {
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--gray);
}

.page-faq .guide-step__time {
  grid-area: time;
  justify-self: start;
  display: inline-block;
  padding: 2px 8px;
  background-color: var(--gold-mist);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  line-height: 1.8;
  white-space: nowrap;
}

/* ---------- 常见场景 ---------- */

.page-faq .scene-grid {
  display: grid;
  grid-template-columns: 1fr;
  margin-top: 30px;
  border-top: 1px solid var(--line);
}

.page-faq .scene {
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .scene__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-faq .scene__idx {
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--gray);
}

.page-faq .scene__title {
  font-size: 17px;
}

.page-faq .scene__desc {
  margin-top: 6px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--gray);
}

.page-faq .scene .tag {
  margin-top: 10px;
}

/* ---------- 自助排查 ---------- */

.page-faq .triage {
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .triage__step {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  padding-bottom: 22px;
}

.page-faq .triage__step:last-child {
  padding-bottom: 0;
}

.page-faq .triage__step::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 26px;
  bottom: 2px;
  width: 1px;
  background-color: var(--line-mid);
}

.page-faq .triage__step:last-child::before {
  display: none;
}

.page-faq .triage__num {
  position: relative;
  z-index: 1;
  align-self: start;
  width: 31px;
  padding: 1px 0;
  background-color: var(--paper);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.7;
  color: var(--cyan);
}

.page-faq .triage__body {
  min-width: 0;
}

.page-faq .triage__title {
  font-size: 18px;
}

.page-faq .triage__desc {
  margin-top: 5px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

/* ---------- 转人工 ---------- */

.page-faq .faq-handoff {
  border-top: 0;
  padding-top: 0;
}

.page-faq .handoff {
  display: grid;
  gap: 26px;
  padding: clamp(22px, 3.6vw, 40px);
  background-color: var(--red-mist);
  border-left: 3px solid var(--red);
}

.page-faq .handoff h2 {
  margin-top: 12px;
  font-size: clamp(23px, 3vw, 33px);
}

.page-faq .handoff__list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .handoff__list li {
  position: relative;
  padding-left: 20px;
  margin-top: 10px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

.page-faq .handoff__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 13px;
  width: 9px;
  height: 2px;
  background-color: var(--red);
}

.page-faq .handoff__meta {
  padding: 18px 18px 20px;
  background-color: var(--paper);
  border: 1px solid var(--line-mid);
}

.page-faq .handoff__dl {
  margin: 0 0 16px;
  display: grid;
  gap: 10px;
}

.page-faq .handoff__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.page-faq .handoff__row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .handoff__dt {
  font-size: 14px;
  line-height: 1.7;
  color: var(--gray);
}

.page-faq .handoff__dd {
  margin: 0;
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.7;
  color: var(--ink);
  text-align: right;
}

.page-faq .handoff__note {
  margin-top: 14px;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.9;
  color: var(--gray);
  word-break: break-all;
}

/* ---------- 响应式 ---------- */

@media (min-width: 760px) {
  .page-faq .guide-step {
    grid-template-columns: 54px minmax(0, 1fr) 110px;
    grid-template-areas: "num .page-faq time";
    column-gap: 18px;
    row-gap: 0;
    align-items: start;
    padding: 20px 0;
  }

  .page-faq .guide-step__num {
    font-size: 22px;
    line-height: 1.2;
  }

  .page-faq .guide-step__time {
    justify-self: end;
    margin-top: 3px;
  }

  .page-faq .scene-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 32px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.32fr) minmax(290px, 0.68fr);
    gap: 48px;
    align-items: end;
  }

  .page-faq .faq-hero__panel {
    padding: 22px 20px 20px;
  }

  .page-faq .faq-cats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-faq .handoff {
    grid-template-columns: minmax(0, 1.45fr) minmax(250px, 0.55fr);
    gap: 44px;
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-shell {
    display: grid;
    grid-template-columns: 208px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 60px);
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--header-h) + 20px);
    margin-bottom: 0;
  }

  .page-faq .faq-toc__list {
    display: block;
    padding: 0;
    overflow: visible;
  }

  .page-faq .faq-toc__link {
    padding: 10px 0 10px 12px;
    white-space: normal;
    border-left: 2px solid var(--line);
  }

  .page-faq .faq-toc__link:hover {
    border-left-color: var(--red);
  }
}

@media (min-width: 1040px) {
  .page-faq .scene-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    column-gap: 40px;
  }
}

@media (max-width: 620px) {
  .page-faq .faq-a {
    padding-left: 0;
  }

  .page-faq .faq-cat {
    padding: 18px 16px 8px;
  }

  .page-faq .faq-q {
    gap: 9px;
  }

  .page-faq .faq-q__hint {
    font-size: 14px;
  }

  .page-faq .triage__step {
    grid-template-columns: 34px minmax(0, 1fr);
  }

  .page-faq .triage__step::before {
    left: 12px;
  }

  .page-faq .triage__num {
    width: 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-q__icon::before,
  .page-faq .faq-q__icon::after,
  .page-faq .faq-q__text,
  .page-faq .faq-toc__link,
  .page-faq .faq-cat {
    transition: none;
  }
}