.page-faq {
  --faq-rail-w: 208px;
  --faq-gap: clamp(22px, 3.2vw, 48px);
  --faq-hair: var(--mist);
}

/* 面包屑与首屏 */
.page-faq .breadcrumb {
  margin-bottom: clamp(16px, 2.4vw, 28px);
  font-size: 14px;
  color: var(--graphite);
}
.page-faq .breadcrumb a {
  color: var(--graphite);
  text-decoration: none;
}
.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--ink);
  text-decoration: underline;
}

.page-faq .faq-hero {
  padding-block: clamp(20px, 3.4vw, 44px) clamp(24px, 3.6vw, 48px);
}

.page-faq .faq-hero__frame {
  position: relative;
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  padding: clamp(20px, 3vw, 44px);
  background: var(--paper);
  border: 1px solid var(--faq-hair);
}
.page-faq .faq-hero__frame::before,
.page-faq .faq-hero__frame::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 2px solid var(--ink);
}
.page-faq .faq-hero__frame::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}
.page-faq .faq-hero__frame::after {
  right: -1px;
  bottom: -1px;
  border-top: 0;
  border-left: 0;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(30px, 4.4vw, 52px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-faq .faq-hero__intro {
  margin: clamp(14px, 2vw, 20px) 0 0;
  max-width: 48ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.78;
  color: var(--graphite);
}

.page-faq .faq-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(16px, 2vw, 22px);
}

.page-faq .faq-hero__figure {
  margin: 0;
}
.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--faq-hair);
  object-fit: cover;
}

/* 先查再问的路径条 */
.page-faq .faq-path {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  margin-top: clamp(20px, 3vw, 34px);
  padding-block: 14px;
  border-top: 1px solid var(--faq-hair);
  border-bottom: 1px solid var(--faq-hair);
  font-size: 14px;
}
.page-faq .faq-path__step {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-2);
  font-weight: 600;
}
.page-faq .faq-path__idx {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--paper);
  background: var(--ink);
  padding: 2px 6px;
}
.page-faq .faq-path__arrow {
  font-family: var(--mono);
  color: var(--orange);
}

/* 左侧分类轨道 + 右侧问答 */
.page-faq .faq-shell {
  display: grid;
  gap: var(--faq-gap);
  align-items: start;
  padding-bottom: clamp(40px, 6vw, 88px);
}

.page-faq .faq-rail__title {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--graphite);
}
.page-faq .faq-rail__list {
  display: flex;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  overflow-x: auto;
  scrollbar-width: thin;
}
.page-faq .faq-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--faq-hair);
  color: var(--graphite);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  background: transparent;
  transition: color 0.2s var(--ease), background-color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--ink);
  background: var(--paper);
  border-color: var(--ink);
}
.page-faq .faq-rail__idx {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--orange);
}

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

/* 章节头 */
.page-faq .faq-section {
  scroll-margin-top: 96px;
}
.page-faq .faq-section + .faq-section {
  margin-top: clamp(32px, 5vw, 64px);
  padding-top: clamp(28px, 4vw, 52px);
  border-top: 1px solid var(--faq-hair);
}
.page-faq .faq-section__title {
  margin: 12px 0 0;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.26;
  letter-spacing: -0.015em;
  color: var(--ink);
}
.page-faq .faq-section__intro {
  margin: 12px 0 0;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--graphite);
}

/* 折叠问答 */
.page-faq .faq-list {
  margin-top: clamp(18px, 2.6vw, 28px);
  border-top: 1px solid var(--faq-hair);
}
.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-hair);
}
.page-faq .faq-item__head {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) 20px;
  gap: 12px;
  align-items: baseline;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
}
.page-faq .faq-item__head::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item__head::after {
  content: "+";
  font-family: var(--mono);
  font-size: 18px;
  line-height: 1;
  text-align: right;
  color: var(--graphite);
}
.page-faq .faq-item[open] .faq-item__head::after {
  content: "−";
  color: var(--orange);
}
.page-faq .faq-item__head:hover .faq-item__q,
.page-faq .faq-item__head:focus-visible .faq-item__q {
  color: var(--ink-2);
  text-decoration: underline;
  text-underline-offset: 4px;
}
.page-faq .faq-item__no {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--orange);
}
.page-faq .faq-item__q {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(16px, 1.9vw, 19px);
  line-height: 1.5;
  color: var(--ink);
}
.page-faq .faq-item__body {
  padding: 0 0 20px 46px;
}
.page-faq .faq-item__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--graphite);
}
.page-faq .faq-item__body p + p {
  margin-top: 10px;
}
.page-faq .faq-item__body a {
  color: var(--ink-2);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-faq .faq-item__body .num {
  color: var(--ink);
  font-weight: 600;
}

/* 四类费用卡片 */
.page-faq .fee-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: clamp(18px, 2.6vw, 28px);
}
.page-faq .fee-card {
  padding: 16px 18px 18px;
  background: var(--paper);
  border: 1px solid var(--faq-hair);
  border-top-width: 4px;
}
.page-faq .fee-card--orange { border-top-color: var(--orange); }
.page-faq .fee-card--amber { border-top-color: var(--amber); }
.page-faq .fee-card--lime { border-top-color: var(--lime); }
.page-faq .fee-card--teal { border-top-color: var(--teal); }
.page-faq .fee-card h3 {
  margin: 0 0 8px;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--ink);
}
.page-faq .fee-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--graphite);
}

/* 自查三步 */
.page-faq .check-path {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: clamp(20px, 2.8vw, 30px);
}
.page-faq .check-step {
  position: relative;
  padding: 16px 18px 18px;
  background: var(--paper);
  border: 1px solid var(--teal);
}
.page-faq .check-step__idx {
  display: inline-block;
  margin-bottom: 10px;
  padding: 2px 8px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--paper);
  background: var(--teal);
}
.page-faq .check-step h3 {
  margin: 0 0 6px;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}
.page-faq .check-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--graphite);
}

/* 插图 */
.page-faq .faq-figure {
  margin: clamp(22px, 3vw, 34px) 0 0;
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--faq-hair);
  object-fit: cover;
}
.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--graphite);
}
.page-faq .faq-figure figcaption a {
  color: var(--ink-2);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 记录查询 */
.page-faq .record-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.6vw, 30px);
  margin-top: clamp(18px, 2.6vw, 28px);
}
.page-faq .record-subtitle {
  margin: 0 0 12px;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}
.page-faq .record-dims {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-faq .record-dims li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--graphite);
}
.page-faq .record-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--faq-hair);
  font-size: 14px;
  line-height: 1.75;
  color: var(--graphite);
}
.page-faq .record-note a {
  color: var(--ink-2);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .feedback-note {
  padding: 16px 18px 18px;
  background: var(--paper);
  border: 1px solid var(--faq-hair);
  border-left: 3px solid var(--rose);
}
.page-faq .feedback-note h3 {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
}
.page-faq .feedback-note p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--graphite);
}
.page-faq .copy-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
}
.page-faq .copy-status {
  min-height: 1em;
  font-size: 13px;
  color: var(--teal);
}

/* 支持信息 */
.page-faq .support-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: clamp(18px, 2.6vw, 28px);
}
.page-faq .support-card {
  padding: 16px 18px 18px;
  background: var(--paper);
  border: 1px solid var(--faq-hair);
}
.page-faq .support-card h3 {
  margin: 0 0 10px;
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--ink);
}
.page-faq .support-card ul {
  margin: 0;
  padding-left: 18px;
}
.page-faq .support-card li {
  font-size: 14px;
  line-height: 1.75;
  color: var(--graphite);
  word-break: break-word;
}
.page-faq .support-tail {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--faq-hair);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--graphite);
}
.page-faq .support-tail a {
  color: var(--ink-2);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 断点 */
@media (min-width: 620px) {
  .page-faq .fee-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-faq .check-path {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }
  .page-faq .check-step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 28px;
    right: -11px;
    width: 8px;
    height: 8px;
    border-top: 2px solid var(--amber);
    border-right: 2px solid var(--amber);
    transform: rotate(45deg);
  }
  .page-faq .support-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 820px) {
  .page-faq .record-grid {
    grid-template-columns: 1.3fr 0.7fr;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__frame {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-shell {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
  }
  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-min) + 24px);
  }
  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }
  .page-faq .faq-rail__link {
    border: 0;
    border-left: 2px solid transparent;
    padding: 10px 12px;
    font-size: 14px;
  }
  .page-faq .faq-rail__link:hover,
  .page-faq .faq-rail__link:focus-visible {
    border-left-color: var(--orange);
    background: var(--paper);
  }
  .page-faq .faq-item__head {
    grid-template-columns: 46px minmax(0, 1fr) 24px;
  }
  .page-faq .faq-item__body {
    padding-left: 58px;
    max-width: 74ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-rail__link {
    transition: none;
  }
}
<<<END>>>