.page-faq {
  --faq-pad: clamp(20px, 3.6vw, 36px);
  --faq-gap: clamp(16px, 3vw, 32px);
  --faq-section-gap: clamp(48px, 7vw, 92px);
  --faq-measure: 38em;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  background: var(--indigo-900);
  color: var(--sand);
  padding: clamp(26px, 5vw, 52px) 0 clamp(44px, 7vw, 88px);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 88% -10%, rgba(201, 162, 39, .20) 0%, rgba(201, 162, 39, 0) 55%),
    radial-gradient(80% 70% at 0% 110%, rgba(46, 139, 132, .22) 0%, rgba(46, 139, 132, 0) 60%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg,
    var(--crimson) 0 18%,
    var(--gold) 18% 34%,
    var(--turquoise) 34% 56%,
    var(--sand) 56% 72%,
    var(--indigo-700) 72% 100%);
  opacity: .85;
}

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

.page-faq .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: .78rem;
}

.page-faq .breadcrumb__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-faq .faq-hero .breadcrumb__link {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .12s ease, border-color .12s ease;
}

.page-faq .faq-hero .breadcrumb__link:hover {
  color: var(--sand);
  border-bottom-color: var(--crimson-soft);
}

.page-faq .faq-hero .breadcrumb__sep {
  color: rgba(200, 210, 224, .45);
}

.page-faq .faq-hero .breadcrumb__current {
  color: var(--gold);
}

.page-faq .faq-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: clamp(24px, 4vw, 44px) 0 14px;
  font-family: var(--font-num);
  font-size: .72rem;
  letter-spacing: .2em;
  color: var(--gold);
  text-transform: uppercase;
}

.page-faq .faq-hero__eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--crimson-soft);
}

.page-faq .faq-hero h1 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.6rem, 9vw, 5.4rem);
  line-height: 1.03;
  letter-spacing: .02em;
  color: var(--sand);
}

.page-faq .faq-hero__lead {
  max-width: 34em;
  margin: 0 0 clamp(24px, 4vw, 36px);
  font-size: clamp(1rem, 1.5vw, 1.08rem);
  line-height: 1.85;
  color: rgba(244, 235, 221, .82);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px clamp(24px, 5vw, 48px);
  margin: 0;
  padding: clamp(18px, 3vw, 24px) 0 0;
  list-style: none;
  border-top: 1px solid rgba(200, 210, 224, .22);
}

.page-faq .faq-hero__meta-item {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .faq-hero__num {
  font-family: var(--font-num);
  font-size: clamp(1.35rem, 3vw, 1.7rem);
  line-height: 1;
  color: var(--sand);
}

.page-faq .faq-hero__unit {
  font-size: .78rem;
  color: rgba(244, 235, 221, .62);
}

/* ---------- 正文容器 ---------- */
.page-faq .faq-body {
  padding-top: var(--faq-section-gap);
  padding-bottom: var(--faq-section-gap);
}

/* ---------- 双栏对照 ---------- */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  align-items: start;
}

.page-faq .faq-panel {
  padding: var(--faq-pad);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-panel--rule {
  background: var(--indigo-900);
  color: var(--sand);
  border-color: rgba(200, 210, 224, .2);
}

.page-faq .faq-panel--docs {
  background: var(--sand-hi);
}

.page-faq .faq-panel__label {
  margin: 0 0 12px;
  font-family: var(--font-num);
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--turquoise);
}

.page-faq .faq-panel--rule .faq-panel__label {
  color: var(--gold);
}

.page-faq .faq-panel__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.35rem, 3.2vw, 1.8rem);
  line-height: 1.3;
  color: inherit;
}

.page-faq .faq-panel__text {
  margin: 0 0 22px;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-faq .faq-panel--rule .faq-panel__text {
  color: rgba(244, 235, 221, .76);
}

.page-faq .faq-rulelist {
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-rulelist__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 14px 0;
  border-top: 1px solid rgba(200, 210, 224, .18);
}

.page-faq .faq-rulelist__num {
  font-family: var(--font-num);
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--gold);
  padding-top: 3px;
}

.page-faq .faq-rulelist__title {
  margin: 0 0 4px;
  font-size: .95rem;
  font-weight: 500;
  color: var(--sand);
}

.page-faq .faq-rulelist__body p {
  margin: 0;
  font-size: .85rem;
  line-height: 1.75;
  color: rgba(244, 235, 221, .68);
}

.page-faq .faq-panel--rule .btn {
  display: inline-block;
}

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

.page-faq .faq-doclist__item + .faq-doclist__item {
  border-top: 1px solid var(--line);
}

.page-faq .faq-doclist__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  padding: 13px 2px;
  color: var(--ink);
  text-decoration: none;
  font-size: .9rem;
  transition: color .12s ease, transform .12s ease;
}

.page-faq .faq-doclist__link:hover,
.page-faq .faq-doclist__link:focus-visible {
  color: var(--link);
  transform: translateX(2px);
}

.page-faq .faq-doclist__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--turquoise);
  flex: none;
}

.page-faq .faq-doclist__arrow {
  font-family: var(--font-num);
  color: var(--mist);
  transition: color .12s ease;
}

.page-faq .faq-doclist__link:hover .faq-doclist__arrow {
  color: var(--turquoise);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: clamp(24px, 4vw, 44px) 0 0;
}

.page-faq .faq-figure--inline {
  margin-top: clamp(24px, 4vw, 40px);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-2);
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: .76rem;
  line-height: 1.7;
  color: var(--ink-mute);
}

/* ---------- 通用章节 ---------- */
.page-faq .faq-section {
  margin-top: var(--faq-section-gap);
}

.page-faq .faq-section__head {
  max-width: var(--faq-measure);
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-faq .faq-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  font-family: var(--font-num);
  font-size: .72rem;
  letter-spacing: .18em;
  color: var(--crimson);
  text-transform: uppercase;
}

.page-faq .faq-kicker::before {
  content: "";
  width: 20px;
  height: 2px;
  background: var(--crimson);
}

.page-faq .faq-section__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.6rem, 4.2vw, 2.5rem);
  line-height: 1.25;
  color: var(--ink);
}

.page-faq .faq-section__lead {
  margin: 0;
  font-size: .95rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

/* ---------- 三步排查 ---------- */
.page-faq .faq-steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3.5vw, 32px);
}

.page-faq .faq-steps .step-anchor {
  border-top: 2px solid var(--step);
  padding-top: 18px;
}

.page-faq .faq-steps .step-anchor__num {
  display: block;
  font-family: var(--font-num);
  font-size: clamp(2.6rem, 7vw, 4rem);
  line-height: 1;
  color: var(--step);
  opacity: .92;
  margin-bottom: 10px;
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-steps .step-anchor__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.2rem;
  color: var(--ink);
}

.page-faq .faq-steps .step-anchor__body {
  margin: 0;
  font-size: .89rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 时间轴 ---------- */
.page-faq .timeline {
  margin: 0;
  padding: 0 0 0 22px;
  list-style: none;
  border-left: 1px solid var(--line-strong);
  max-width: 46em;
}

.page-faq .timeline__item {
  position: relative;
  padding: 0 0 clamp(22px, 3.5vw, 32px) 0;
}

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

.page-faq .timeline__item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 7px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--mist);
  box-shadow: 0 0 0 4px rgba(200, 210, 224, .28);
}

.page-faq .timeline__item--current::before {
  background: var(--gold);
  box-shadow: 0 0 0 5px rgba(201, 162, 39, .18);
}

.page-faq .timeline__time {
  margin: 0 0 6px;
  font-family: var(--font-num);
  font-size: .78rem;
  letter-spacing: .1em;
  color: var(--gold-ink);
}

.page-faq .timeline__item--current .timeline__time {
  color: var(--crimson);
}

.page-faq .timeline__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.1rem;
  line-height: 1.45;
  color: var(--ink);
}

.page-faq .timeline__body {
  margin: 0;
  font-size: .88rem;
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: 40em;
}

/* ---------- 主题标签 ---------- */
.page-faq .faq-topics {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(24px, 4vw, 36px);
}

.page-faq .faq-topic {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  font-size: .8rem;
  text-decoration: none;
  transition: border-color .12s ease, color .12s ease, transform .12s ease;
}

.page-faq .faq-topic::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--turquoise);
  flex: none;
}

.page-faq .faq-topic:hover,
.page-faq .faq-topic:focus-visible {
  border-color: var(--turquoise);
  color: var(--link);
  transform: translateY(-2px);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-qa {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 40px);
}

.page-faq .faq-group__title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.05rem;
  color: var(--ink);
}

.page-faq .faq-group__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--turquoise);
  flex: none;
  box-shadow: 0 0 0 3px rgba(46, 139, 132, .14);
}

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

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  cursor: pointer;
  list-style: none;
  font-size: .95rem;
  font-weight: 500;
  line-height: 1.6;
  color: var(--ink);
  transition: color .12s ease;
}

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

.page-faq .faq-item__q::marker {
  content: "";
}

.page-faq .faq-item__q::after {
  content: "+";
  flex: none;
  font-family: var(--font-num);
  font-size: 1.15rem;
  line-height: 1.2;
  color: var(--turquoise);
  transition: transform .16s ease;
}

.page-faq .faq-item[open] .faq-item__q {
  color: var(--link);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "–";
}

.page-faq .faq-item__q:hover {
  color: var(--link);
}

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

.page-faq .faq-item__a {
  padding: 0 0 16px;
  max-width: var(--faq-measure);
  font-size: .9rem;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-faq .faq-item__a p {
  margin: 0;
}

/* ---------- 联系区 ---------- */
.page-faq .faq-help {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  margin-top: var(--faq-section-gap);
  padding: var(--faq-pad);
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--crimson);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-help__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 3.6vw, 2rem);
  line-height: 1.3;
  color: var(--ink);
}

.page-faq .faq-help__lead {
  margin: 0 0 20px;
  font-size: .92rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-faq .faq-prepare {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: prepare;
}

.page-faq .faq-prepare li {
  position: relative;
  counter-increment: prepare;
  padding: 9px 0 9px 34px;
  font-size: .88rem;
  line-height: 1.7;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
}

.page-faq .faq-prepare li::before {
  content: counter(prepare, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 9px;
  font-family: var(--font-num);
  font-size: .78rem;
  letter-spacing: .06em;
  color: var(--crimson);
}

.page-faq .faq-help__side {
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-help__label {
  margin: 0 0 8px;
  font-family: var(--font-num);
  font-size: .7rem;
  letter-spacing: .16em;
  color: var(--ink-mute);
}

.page-faq .faq-help__label:not(:first-child) {
  margin-top: 20px;
}

.page-faq .faq-mail {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  max-width: 100%;
  padding: 10px 16px;
  background: var(--indigo-900);
  color: var(--sand);
  border: 1px solid var(--indigo-700);
  border-radius: var(--radius);
  font-family: var(--font-num);
  font-size: .84rem;
  cursor: pointer;
  transition: transform .12s ease, border-color .12s ease;
}

.page-faq .faq-mail:hover {
  transform: translateY(-2px);
  border-color: var(--turquoise);
}

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

.page-faq .faq-mail .copy-email__text {
  word-break: break-all;
  text-align: left;
}

.page-faq .faq-mail .copy-email__hint {
  font-family: var(--font-body);
  font-size: .7rem;
  color: var(--turquoise-soft);
  border-left: 1px solid rgba(200, 210, 224, .28);
  padding-left: 10px;
}

.page-faq .faq-mail__status {
  margin: 8px 0 0;
  min-height: 1.2em;
  font-size: .76rem;
  color: var(--link);
}

.page-faq .faq-help__value {
  margin: 0;
  font-family: var(--font-num);
  font-size: 1.15rem;
  letter-spacing: .04em;
  color: var(--ink);
}

.page-faq .faq-help__note {
  margin: 12px 0 18px;
  font-size: .8rem;
  line-height: 1.75;
  color: var(--ink-mute);
}

.page-faq .faq-help__side .btn {
  display: inline-block;
  margin-bottom: 18px;
}

.page-faq .faq-help__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 0;
  font-size: .82rem;
}

.page-faq .faq-help__links a {
  color: var(--link);
  text-decoration: none;
  border-bottom: 1px solid rgba(46, 139, 132, .4);
  padding-bottom: 1px;
}

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

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-qa {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(28px, 4vw, 48px);
  }

  .page-faq .faq-help {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-faq .faq-help__side {
    padding-top: 0;
    padding-left: clamp(20px, 3vw, 32px);
    border-top: 0;
    border-left: 1px solid var(--line);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(24px, 3vw, 36px);
  }

  .page-faq .faq-split__rail {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-panel {
    padding: clamp(26px, 3vw, 40px);
  }

  .page-faq .faq-body {
    max-width: var(--shell);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-doclist__link,
  .page-faq .faq-topic,
  .page-faq .faq-mail,
  .page-faq .faq-item__q::after {
    transition: none;
  }

  .page-faq .faq-doclist__link:hover,
  .page-faq .faq-topic:hover,
  .page-faq .faq-mail:hover {
    transform: none;
  }
}