.page-faq {
  --faq-pad: clamp(18px, 2.4vw, 30px);
  --faq-rule: 1px solid var(--border);
  --faq-shell-max: 1180px;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--sans);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  border-bottom: var(--faq-rule);
  background: linear-gradient(180deg, var(--paper) 0%, var(--cream) 100%);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(112deg, rgba(185, 138, 69, .13) 0 1px, transparent 1px 32px),
    radial-gradient(120% 95% at 92% -10%, rgba(11, 43, 38, .08), transparent 62%);
  opacity: .7;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: clamp(90px, 18vw, 220px);
  height: 6px;
  background: linear-gradient(90deg, var(--bronze) 0%, rgba(185, 138, 69, 0) 100%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  padding-top: clamp(28px, 5.5vw, 74px);
  padding-bottom: clamp(26px, 4vw, 54px);
}

.page-faq .breadcrumb {
  margin-bottom: clamp(16px, 2.6vw, 28px);
}

.page-faq .faq-hero h1 {
  font-family: var(--serif);
  font-size: clamp(30px, 5vw, 56px);
  line-height: 1.16;
  letter-spacing: -.012em;
  color: var(--green);
  margin: 14px 0 0;
  max-width: 22ch;
  font-weight: 700;
}

.page-faq .faq-hero .lede {
  margin-top: clamp(14px, 2vw, 22px);
  max-width: 62ch;
  font-size: clamp(15.5px, 1.4vw, 17.5px);
  line-height: 1.85;
  color: var(--ink);
}

/* 数字条 */
.page-faq .faq-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(138px, 1fr));
  gap: 1px;
  margin-top: clamp(22px, 3.4vw, 38px);
  background: var(--border);
  border: var(--faq-rule);
}

.page-faq .faq-stat {
  background: var(--paper);
  padding: 14px 16px 15px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.page-faq .faq-stat__num {
  font-family: var(--mono);
  font-size: clamp(18px, 2.1vw, 25px);
  font-weight: 600;
  color: var(--green);
  letter-spacing: -.02em;
  line-height: 1.2;
}

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

/* 快捷分类 */
.page-faq .faq-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(18px, 2.6vw, 28px);
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  padding-top: clamp(30px, 5vw, 64px);
  padding-bottom: clamp(44px, 7vw, 100px);
  align-items: start;
}

.page-faq .faq-aside {
  display: grid;
  gap: 16px;
}

.page-faq .faq-toc {
  background: var(--paper);
  border: var(--faq-rule);
  padding: 12px;
}

.page-faq .faq-toc a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 10px;
  color: var(--ink);
  text-decoration: none;
  font-size: 14.5px;
  line-height: 1.55;
  border-left: 2px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}

.page-faq .faq-toc a:hover,
.page-faq .faq-toc a:focus-visible {
  color: var(--green);
  background: rgba(185, 138, 69, .10);
}

.page-faq .faq-toc a[aria-current] {
  color: var(--green);
  border-left-color: var(--bronze);
  background: rgba(185, 138, 69, .13);
  font-weight: 600;
}

.page-faq .faq-toc .chapter-nav__idx {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--bronze);
  letter-spacing: .06em;
  flex: none;
}

.page-faq .faq-aside__memo {
  background: var(--green);
  color: var(--cream);
  padding: 18px 16px 20px;
  border: 1px solid var(--green-deep);
  position: relative;
  overflow: hidden;
}

.page-faq .faq-aside__memo::after {
  content: "";
  position: absolute;
  right: -46px;
  bottom: -56px;
  width: 130px;
  height: 130px;
  background: rgba(185, 138, 69, .17);
  transform: rotate(26deg);
  pointer-events: none;
}

.page-faq .faq-aside__memo-title {
  font-family: var(--serif);
  font-size: 17px;
  color: var(--cream);
  margin: 0 0 8px;
}

.page-faq .faq-aside__memo-text {
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(245, 240, 230, .82);
  margin: 0 0 14px;
}

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

/* ---------- 章节 ---------- */
.page-faq .faq-sec {
  padding-top: clamp(30px, 4.6vw, 56px);
  scroll-margin-top: calc(var(--bar-h) + 22px);
}

.page-faq .faq-sec:first-child {
  padding-top: 0;
}

.page-faq .faq-sec__head {
  padding-bottom: clamp(14px, 2vw, 22px);
  border-bottom: var(--faq-rule);
}

.page-faq .faq-sec h2 {
  font-family: var(--serif);
  font-size: clamp(23px, 2.9vw, 33px);
  line-height: 1.28;
  color: var(--green);
  margin: 10px 0 0;
  font-weight: 700;
}

.page-faq .faq-sec__lede {
  margin: 12px 0 0;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-mute);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-list {
  margin-top: clamp(14px, 2vw, 20px);
}

.page-faq .faq-item {
  background: var(--paper);
  border: var(--faq-rule);
  border-radius: 2px;
  margin-top: 10px;
  transition: box-shadow .26s var(--ease), border-color .26s var(--ease), transform .26s var(--ease);
}

.page-faq .faq-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 30px -28px rgba(6, 26, 23, .75);
}

.page-faq .faq-item[open] {
  border-color: var(--bronze);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px var(--faq-pad);
  cursor: pointer;
  list-style: none;
  font-family: var(--serif);
  font-size: clamp(15.5px, 1.45vw, 18px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
}

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

.page-faq .faq-item summary::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  margin-top: 9px;
  border-radius: 50%;
  background: var(--bronze);
  transition: background .2s var(--ease);
}

.page-faq .faq-item[open] summary::before {
  background: var(--amber);
}

.page-faq .faq-item summary::after {
  content: "+";
  flex: none;
  margin-left: auto;
  font-family: var(--mono);
  font-size: 20px;
  line-height: 1;
  color: var(--bronze);
  transition: transform .26s var(--ease), color .2s var(--ease);
}

.page-faq .faq-item[open] summary::after {
  transform: rotate(45deg);
  color: var(--green);
}

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

.page-faq .faq-item__body {
  margin: 0 var(--faq-pad) 20px calc(var(--faq-pad) + 18px);
  padding-top: 14px;
  border-top: 1px dashed var(--border);
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink);
}

.page-faq .faq-item__body > * + * {
  margin-top: 10px;
}

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

.page-faq .faq-item__body a {
  color: var(--green);
  text-decoration: underline;
  text-decoration-color: var(--bronze);
  text-underline-offset: 3px;
}

.page-faq .faq-note {
  font-size: 13.5px;
  color: var(--ink-mute);
  border-left: 2px solid var(--bronze);
  padding-left: 10px;
  line-height: 1.75;
}

/* 步骤 */
.page-faq .faq-steps {
  list-style: none;
  counter-reset: faqstep;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .faq-steps li {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
}

.page-faq .faq-steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--bronze);
  letter-spacing: .04em;
}

/* 要点列表 */
.page-faq .faq-bullets {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-bullets li {
  position: relative;
  padding-left: 16px;
}

.page-faq .faq-bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 5px;
  height: 5px;
  background: var(--sage);
  transform: rotate(45deg);
}

.page-faq .faq-bullets strong {
  color: var(--green);
  font-weight: 600;
}

/* 数据表 */
.page-faq .faq-table-wrap {
  overflow-x: auto;
  border: var(--faq-rule);
  background: var(--paper);
}

.page-faq .faq-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 14.5px;
}

.page-faq .faq-table__caption {
  caption-side: top;
  text-align: left;
  font-size: 13px;
  color: var(--ink-mute);
  padding: 10px 14px 0;
}

.page-faq .faq-table th {
  background: var(--green);
  color: var(--cream);
  font-weight: 600;
  text-align: left;
  padding: 11px 14px;
  white-space: nowrap;
  font-size: 13.5px;
  letter-spacing: .03em;
}

.page-faq .faq-table td {
  padding: 11px 14px;
  border-top: 1px solid rgba(205, 187, 154, .55);
  vertical-align: top;
  line-height: 1.7;
}

.page-faq .faq-table tbody tr:nth-child(even) {
  background: rgba(245, 240, 230, .75);
}

.page-faq .faq-table tbody tr:hover {
  background: rgba(232, 163, 61, .14);
}

.page-faq .faq-table td.num {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--green);
  white-space: nowrap;
}

/* 图注 */
.page-faq .faq-figure {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  border: var(--faq-rule);
  background: var(--paper);
  padding: 12px;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid rgba(205, 187, 154, .6);
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  padding-left: 10px;
  border-left: 2px solid var(--bronze);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--ink-mute);
}

/* ---------- 联系 ---------- */
.page-faq .faq-contact {
  position: relative;
  overflow: hidden;
  margin-top: clamp(16px, 2.4vw, 24px);
  padding: clamp(18px, 2.6vw, 30px);
  background: var(--green);
  border: 1px solid var(--green-deep);
  color: var(--cream);
}

.page-faq .faq-contact::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -74px;
  width: 200px;
  height: 200px;
  background: rgba(185, 138, 69, .16);
  transform: rotate(24deg);
  pointer-events: none;
}

.page-faq .faq-contact__row {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 5px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(214, 179, 106, .26);
}

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

.page-faq .faq-contact__label {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  color: var(--bronze-soft);
}

.page-faq .faq-contact__value {
  font-family: var(--mono);
  font-size: clamp(14px, 1.5vw, 16px);
  color: var(--cream);
  word-break: break-all;
  line-height: 1.6;
}

.page-faq .faq-contact__value--text {
  font-family: var(--sans);
  font-size: 15px;
  word-break: normal;
}

.page-faq .faq-contact__hint {
  font-size: 13px;
  line-height: 1.75;
  color: rgba(245, 240, 230, .72);
  max-width: 58ch;
  margin-top: 2px;
}

.page-faq .faq-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(18px, 2.4vw, 26px);
}

.page-faq .faq-actions .btn {
  flex: 1 1 200px;
  text-align: center;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-hero .lede {
    max-width: 58ch;
  }

  .page-faq .faq-actions .btn {
    flex: 0 0 auto;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: clamp(36px, 4.4vw, 68px);
  }

  .page-faq .faq-aside {
    position: sticky;
    top: calc(var(--bar-h) + 26px);
  }

  .page-faq .faq-item__body {
    padding-right: clamp(18px, 3vw, 44px);
  }
}

@media (max-width: 979px) {
  .page-faq .faq-toc {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
    gap: 2px;
  }

  .page-faq .faq-toc a {
    border-left: 0;
    border-bottom: 2px solid transparent;
  }

  .page-faq .faq-toc a[aria-current] {
    border-left: 0;
    border-bottom-color: var(--bronze);
  }
}

@media (max-width: 560px) {
  .page-faq .faq-item__body {
    margin-right: var(--faq-pad);
    margin-left: var(--faq-pad);
  }

  .page-faq .faq-stats {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .faq-actions .btn {
    flex: 1 1 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item,
  .page-faq .faq-item summary::after,
  .page-faq .faq-toc a {
    transition: none;
  }

  .page-faq .faq-item:hover {
    transform: none;
  }
}