.page-faq {
  display: block;
  padding-bottom: clamp(48px, 8vw, 88px);
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}

.page-faq .faq-hero {
  padding-top: clamp(20px, 4vw, 40px);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  margin-top: 22px;
}

.page-faq .faq-hero h1 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(30px, 4.4vw, 54px);
  line-height: 1.18;
  letter-spacing: -0.01em;
  margin: 10px 0 0;
  max-width: 18em;
}

.page-faq .faq-hero__intro {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--ink);
}

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

.page-faq .faq-hero__panel {
  position: relative;
  border-radius: var(--r-lg);
  padding: 22px;
  border: 1px solid var(--line-soft);
  background:
    linear-gradient(155deg, var(--mist-purple) 0%, var(--card) 46%, var(--mist-green) 100%);
  box-shadow: 0 18px 44px -32px rgba(61, 28, 75, .55);
}

.page-faq .faq-hero__panel-title {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--grape);
}

.page-faq .faq-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.page-faq .faq-stats li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 14px 16px;
  border-radius: var(--r-sm);
  background: rgba(255, 253, 248, .78);
  border: 1px solid rgba(91, 44, 111, .10);
}

.page-faq .faq-stats strong {
  font-family: var(--mono);
  font-size: 27px;
  line-height: 1.1;
  color: var(--grape);
}

.page-faq .faq-stats span {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.5;
}

.page-faq .faq-hero__panel-note {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* 筛选索引带 */
.page-faq .faq-filters {
  position: sticky;
  top: 0;
  z-index: 4;
  margin-top: clamp(28px, 5vw, 52px);
  padding-block: 16px 18px;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(247, 243, 236, .98) 0%, rgba(247, 243, 236, .93) 100%);
  backdrop-filter: blur(6px);
}

.page-faq .faq-filters__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 20px;
  margin-bottom: 14px;
}

.page-faq .faq-filters__head h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.3;
}

.page-faq .faq-filters__count {
  margin: 0;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
}

.page-faq .faq-filters__count strong {
  color: var(--grape);
  font-size: 18px;
}

.page-faq .faq-filters__groups {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px 32px;
}

.page-faq .faq-fgroup__label {
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--muted);
}

.page-faq .faq-fgroup__items {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 13px;
  border-radius: var(--pill);
  border: 1px solid var(--line);
  background: var(--card);
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--ink);
  white-space: nowrap;
}

.page-faq .faq-chip em {
  font-style: normal;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--muted);
}

.page-faq .faq-chip--grape {
  background: var(--grape);
  border-color: var(--grape);
  color: #fff;
}

.page-faq .faq-chip--grape em {
  color: var(--gold-light);
}

.page-faq .faq-chip--green {
  background: var(--mist-green);
  border-color: rgba(62, 142, 90, .34);
  color: var(--vine-deep);
}

.page-faq .faq-chip--gold {
  background: var(--gold-light);
  border-color: rgba(201, 162, 39, .48);
  color: #4a3a05;
}

.page-faq .faq-chip--gold em {
  color: #6b5410;
}

/* 对照 + 时间线 */
.page-faq .faq-docgrid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 48px;
  margin-top: clamp(32px, 5vw, 56px);
}

.page-faq .faq-compare h2,
.page-faq .faq-log h2 {
  font-family: var(--serif);
  font-size: clamp(23px, 2.6vw, 32px);
  line-height: 1.3;
  margin: 8px 0 0;
}

.page-faq .faq-compare__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: start;
}

.page-faq .faq-compare__note {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 30em;
}

.page-faq .faq-compare__thumb {
  width: 96px;
  margin: 0;
}

.page-faq .faq-compare__rows {
  margin-top: 22px;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-crow {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding-block: 14px;
  border-bottom: 1px dashed var(--line-soft);
}

.page-faq .faq-crow__cell {
  border-radius: var(--r-sm);
  padding: 12px 14px;
  font-size: 14.5px;
  line-height: 1.72;
  overflow-wrap: break-word;
}

.page-faq .faq-crow__cell--old {
  background: var(--mist-purple);
  color: #3f2c49;
}

.page-faq .faq-crow__cell--new {
  background: var(--mist-green);
  color: #1f4530;
}

.page-faq .faq-crow__no {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 24px;
  padding: 0 8px;
  border-radius: var(--pill);
  background: var(--card);
  border: 1px solid rgba(201, 162, 39, .6);
  font-family: var(--mono);
  font-size: 11.5px;
  color: #6b5410;
}

.page-faq .faq-log__note {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 30em;
}

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

.page-faq .faq-timeline::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 18px;
  bottom: 18px;
  width: 1.5px;
  background: linear-gradient(180deg, var(--gold) 0%, var(--grape) 45%, var(--vine) 100%);
  opacity: .38;
}

.page-faq .faq-timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding-block: 12px;
}

.page-faq .faq-timeline__no {
  position: relative;
  z-index: 1;
  align-self: start;
  width: 44px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border-radius: var(--pill);
  border: 1px solid rgba(201, 162, 39, .6);
  background: var(--gold-light);
  color: #3a2d06;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1;
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-timeline__no:hover,
.page-faq .faq-timeline__no:focus-visible {
  background: var(--gold);
  color: #fff;
  outline: none;
}

.page-faq .faq-timeline__meta {
  margin: 0 0 4px;
  color: var(--vine-deep);
  font-size: 11.5px;
  letter-spacing: .04em;
}

.page-faq .faq-timeline__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink);
  overflow-wrap: break-word;
}

/* 九步指引 */
.page-faq .faq-steps {
  margin-top: clamp(44px, 7vw, 76px);
}

.page-faq .faq-steps__figure {
  margin-top: 24px;
}

.page-faq .faq-steps__list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-faq .faq-step {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  border-radius: var(--r-md);
  background: var(--card);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--vine);
}

.page-faq .faq-step:nth-child(3n + 1) {
  border-left-color: var(--grape);
}

.page-faq .faq-step:nth-child(3n + 3) {
  border-left-color: var(--gold);
}

.page-faq .faq-step__no {
  font-family: var(--mono);
  font-size: 12.5px;
  color: #6b5410;
  background: var(--gold-light);
  border-radius: var(--pill);
  padding: 2px 10px;
  align-self: flex-start;
}

.page-faq .faq-step__title {
  margin: 0;
  font-family: var(--serif);
  font-size: 17.5px;
  line-height: 1.45;
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink);
}

.page-faq .faq-step__trap {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
  padding-left: 12px;
  border-left: 2px solid var(--line);
}

.page-faq .faq-step__trap span {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--grape);
  margin-right: 6px;
}

/* 常见疑问 */
.page-faq .faq-qa {
  margin-top: clamp(44px, 7vw, 76px);
}

.page-faq .faq-qa__list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin-top: 24px;
}

.page-faq .faq-qa__item {
  border-radius: var(--r-md);
  background: var(--card);
  border: 1px solid var(--line-soft);
  overflow: hidden;
}

.page-faq .faq-qa__item[open] {
  border-color: rgba(91, 44, 111, .26);
}

.page-faq .faq-qa__item summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 16px 20px;
  cursor: pointer;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 16.5px;
  line-height: 1.5;
  color: var(--ink);
  list-style: none;
}

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

.page-faq .faq-qa__item summary::after {
  content: "＋";
  margin-left: auto;
  font-family: var(--mono);
  font-size: 15px;
  color: var(--vine);
}

.page-faq .faq-qa__item[open] summary::after {
  content: "－";
  color: var(--grape);
}

.page-faq .faq-qa__item summary:focus-visible {
  outline: 2px solid var(--vine);
  outline-offset: -3px;
}

.page-faq .faq-qa__body {
  padding: 0 20px 18px;
}

.page-faq .faq-qa__body p {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

/* 联络收尾 */
.page-faq .faq-help {
  margin-top: clamp(44px, 7vw, 76px);
}

.page-faq .faq-help__panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding: clamp(22px, 4vw, 42px);
  border-radius: var(--r-lg);
  border: 1px solid var(--line-soft);
  background:
    linear-gradient(135deg, var(--mist-purple) 0%, var(--card) 52%, var(--gold-light) 100%);
}

.page-faq .faq-help__lead h2 {
  margin: 8px 0 0;
  font-family: var(--serif);
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.32;
}

.page-faq .faq-help__lead p {
  margin: 14px 0 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink);
}

.page-faq .faq-help__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.page-faq .faq-help__contacts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-help__contacts li {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 4px 12px;
  padding: 14px 16px;
  border-radius: var(--r-sm);
  background: rgba(255, 253, 248, .82);
  border: 1px solid rgba(91, 44, 111, .12);
}

.page-faq .faq-help__label {
  grid-column: 1 / -1;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--muted);
}

.page-faq .faq-help__value {
  font-size: 15px;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.page-faq .faq-help__copy {
  flex: 0 0 auto;
}

.page-faq .faq-help__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-help__note a {
  color: var(--vine-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-help__note a:hover {
  color: var(--grape);
}

/* 响应式 */
@media (min-width: 640px) {
  .page-faq .faq-crow {
    grid-template-columns: minmax(0, 1fr) 44px minmax(0, 1fr);
    align-items: center;
    gap: 0 10px;
  }

  .page-faq .faq-crow__no {
    justify-self: center;
  }

  .page-faq .faq-crow::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 6px;
    bottom: 6px;
    border-left: 1px dashed rgba(201, 162, 39, .65);
  }

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

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

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

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

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
    align-items: end;
  }

  .page-faq .faq-filters__groups {
    grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr) minmax(0, 1fr);
    gap: 14px 36px;
  }

  .page-faq .faq-help__panel {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
    gap: 40px;
  }

  .page-faq .faq-help__note {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-docgrid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-compare {
    order: 1;
  }

  .page-faq .faq-log {
    order: 2;
  }

  .page-faq .faq-steps__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) and (min-height: 780px) {
  .page-faq .faq-compare {
    position: sticky;
    top: 128px;
  }
}

@media (max-width: 400px) {
  .page-faq .faq-stats {
    grid-template-columns: minmax(0, 1fr);
  }

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

  .page-faq .faq-compare__thumb {
    width: 78px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-timeline__no,
  .page-faq .faq-chip {
    transition: none;
  }
}