.page-faq {
  --faq-gap: clamp(24px, 4vw, 48px);
  --faq-pad: clamp(28px, 4.5vw, 60px);
  display: block;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  overflow-wrap: break-word;
}

.page-faq a {
  color: var(--blue-deep);
}

/* 顶部七区色带 */
.page-faq .faq-band {
  display: flex;
  height: 4px;
}

.page-faq .faq-band span {
  flex: 1 1 0;
}

.page-faq .faq-band span:nth-child(1) { background: var(--r-north); }
.page-faq .faq-band span:nth-child(2) { background: var(--r-east); }
.page-faq .faq-band span:nth-child(3) { background: var(--r-south); }
.page-faq .faq-band span:nth-child(4) { background: var(--r-central); }
.page-faq .faq-band span:nth-child(5) { background: var(--r-southwest); }
.page-faq .faq-band span:nth-child(6) { background: var(--r-northwest); }
.page-faq .faq-band span:nth-child(7) { background: var(--r-northeast); }

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  padding: 20px var(--gutter) clamp(32px, 5vw, 56px);
  background: linear-gradient(180deg, var(--paper) 0%, var(--canvas) 100%);
  border-bottom: 1px solid var(--line-strong);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(44, 62, 80, .05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(44, 62, 80, .05) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  max-width: var(--shell-max);
  margin: 0 auto;
}

.page-faq .breadcrumb {
  margin: 0 0 22px;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .faq-hero__lead .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--blue);
  margin: 0;
}

.page-faq h1 {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: clamp(30px, 5.6vw, 54px);
  line-height: 1.14;
  letter-spacing: -.01em;
  margin: 12px 0 16px;
  max-width: 17em;
  color: var(--ink);
}

.page-faq .faq-hero__sub {
  margin: 0;
  max-width: 44em;
  font-size: 17px;
  color: var(--ink-soft);
}

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

.page-faq .faq-hero__rail {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-strong);
  border: 1px solid var(--line-strong);
  align-self: end;
}

.page-faq .faq-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 14px;
  background: var(--paper);
  border-left: 3px solid var(--blue);
}

.page-faq .faq-stat:nth-child(4n+2) { border-left-color: var(--gold); }
.page-faq .faq-stat:nth-child(4n+3) { border-left-color: var(--rust); }
.page-faq .faq-stat:nth-child(4n+4) { border-left-color: var(--blue-deep); }

.page-faq .faq-stat__num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 500;
  line-height: 1;
  color: var(--blue-deep);
}

.page-faq .faq-stat__label {
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-soft);
}

/* 定位条 */
.page-faq .faq-locator {
  padding: clamp(22px, 3.5vw, 38px) var(--gutter) 0;
}

.page-faq .faq-locator__inner {
  max-width: var(--shell-max);
  margin: 0 auto;
  display: grid;
  background: var(--paper);
  border: 1px solid var(--line-strong);
}

.page-faq .faq-locator__find {
  padding: clamp(18px, 2.6vw, 26px);
  border-bottom: 1px solid var(--line-strong);
}

.page-faq .faq-locator__title {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 20px;
  line-height: 1.4;
  margin: 0 0 14px;
  color: var(--ink);
}

.page-faq .faq-locator__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 6px;
}

.page-faq .faq-locator__input {
  display: block;
  width: 100%;
  box-sizing: border-box;
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: 0;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .faq-locator__input::placeholder {
  color: var(--ink-soft);
}

.page-faq .faq-locator__input:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(58, 124, 165, .18);
}

.page-faq .faq-locator__hint {
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ink-soft);
}

.page-faq .faq-index {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: var(--line);
}

.page-faq .faq-index__item {
  background: var(--paper);
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 15px 16px;
  text-decoration: none;
  color: var(--ink);
  font-size: 15px;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  background: rgba(58, 124, 165, .07);
  color: var(--blue-deep);
}

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

/* 章节 */
.page-faq .faq-section {
  max-width: var(--shell-max);
  margin: 0 auto;
  padding: var(--faq-pad) var(--gutter);
  scroll-margin-top: 96px;
}

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

.page-faq .faq-section__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  margin-bottom: 22px;
}

.page-faq .faq-section__index {
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 500;
  line-height: 1;
  color: var(--blue);
  padding-right: 14px;
  border-right: 1px solid var(--line-strong);
}

.page-faq .faq-section__title {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: clamp(21px, 3vw, 29px);
  line-height: 1.32;
  margin: 0 0 8px;
  color: var(--ink);
}

.page-faq .faq-section__desc {
  margin: 0;
  max-width: 48em;
  color: var(--ink-soft);
}

/* 区域标签 */
.page-faq .faq-regions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

/* 图 */
.page-faq .faq-figure {
  margin: 0 0 24px;
  background: var(--paper);
  border: 1px solid var(--line-strong);
}

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

.page-faq .faq-figure__cap {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ink-soft);
}

/* 折叠问答 */
.page-faq .faq-list {
  border-top: 1px solid var(--line-strong);
}

.page-faq .faq-item {
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-top: 0;
  transition: box-shadow var(--dur) var(--ease);
}

.page-faq .faq-item:hover {
  box-shadow: var(--shadow-2);
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  cursor: pointer;
  list-style: none;
  transition: background var(--dur) var(--ease);
}

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

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

.page-faq .faq-q__num {
  flex: none;
  min-width: 3.4em;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--gold-ink);
}

.page-faq .faq-q__text {
  flex: 1 1 auto;
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 17px;
  line-height: 1.55;
  color: var(--ink);
}

.page-faq .faq-q__mark {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
  margin-top: 6px;
}

.page-faq .faq-q__mark::before,
.page-faq .faq-q__mark::after {
  content: "";
  position: absolute;
  background: var(--blue);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

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

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

.page-faq .faq-item[open] .faq-q {
  background: rgba(58, 124, 165, .06);
}

.page-faq .faq-item[open] .faq-q__text {
  color: var(--blue-deep);
}

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

.page-faq .faq-a {
  margin: 0 16px;
  padding: 14px 0 18px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 16px;
}

.page-faq .faq-a p {
  margin: 0 0 10px;
}

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

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

/* 表格 */
.page-faq .faq-tablewrap {
  margin: 0 0 24px;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  overflow-x: auto;
}

.page-faq .faq-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
}

.page-faq .faq-table thead th {
  padding: 11px 14px;
  text-align: left;
  background: var(--canvas-deep);
  border-bottom: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.page-faq .faq-table tbody th,
.page-faq .faq-table tbody td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  text-align: left;
  color: var(--ink);
}

.page-faq .faq-table tbody th {
  font-family: var(--font-head);
  font-weight: 500;
}

.page-faq .faq-table tbody td.num {
  font-family: var(--font-mono);
  font-weight: 500;
  color: var(--rust);
}

.page-faq .faq-table tbody tr:last-child th,
.page-faq .faq-table tbody tr:last-child td {
  border-bottom: 0;
}

/* 两端对比 */
.page-faq .faq-compare {
  display: grid;
  gap: 1px;
  background: var(--line-strong);
  border: 1px solid var(--line-strong);
  margin-bottom: 24px;
}

.page-faq .faq-compare__col {
  background: var(--paper);
  padding: 20px;
  border-top: 3px solid var(--blue);
}

.page-faq .faq-compare__col:nth-child(2) {
  border-top-color: var(--rust);
}

.page-faq .faq-compare__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--ink-soft);
  margin-bottom: 8px;
}

.page-faq .faq-compare__title {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 19px;
  line-height: 1.4;
  margin: 0 0 12px;
  color: var(--ink);
}

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

.page-faq .faq-compare__list li {
  position: relative;
  padding-left: 16px;
  margin-bottom: 8px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink-soft);
}

.page-faq .faq-compare__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 1px;
  background: var(--gold);
}

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

/* 联系 */
.page-faq .faq-contact {
  display: grid;
  gap: 1px;
  background: var(--line-strong);
  border: 1px solid var(--line-strong);
  margin-bottom: 24px;
}

.page-faq .faq-contact__col {
  background: var(--paper);
  padding: 20px;
}

.page-faq .faq-contact__head {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 17px;
  margin: 0 0 10px;
  color: var(--ink);
}

.page-faq .faq-contact__value {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 500;
  margin: 0 0 10px;
  color: var(--blue-deep);
  word-break: break-all;
}

.page-faq .faq-contact__text {
  margin: 0;
  font-size: 15px;
  color: var(--ink-soft);
}

/* 旁注间距 */
.page-faq .note {
  margin: 24px 0 0;
}

/* 平板及以上 */
@media (min-width: 720px) {
  .page-faq .faq-q {
    padding: 18px 22px;
    gap: 16px;
  }

  .page-faq .faq-a {
    margin: 0 22px 0 72px;
  }

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

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

  .page-faq .faq-figure--narrow {
    max-width: 620px;
  }
}

/* 桌面 */
@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, .9fr);
    align-items: end;
    gap: clamp(32px, 5vw, 72px);
  }

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

  .page-faq .faq-locator__inner {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
  }

  .page-faq .faq-locator__find {
    border-bottom: 0;
    border-right: 1px solid var(--line-strong);
  }

  .page-faq .faq-section__head {
    gap: 22px;
  }

  .page-faq .faq-section__index {
    padding-right: 22px;
  }
}