/* ===== 页面作用域：常见问答 ===== */
.page-faq {
  display: block;
  padding-bottom: 72px;
}

.page-faq .breadcrumbs {
  margin: 20px 0 16px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: grid;
  gap: 24px;
  padding: 28px 20px 26px;
  border-radius: var(--radius-lg);
  background: var(--ink-900);
  color: var(--paper-100);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(115% 88% at 88% -14%, rgba(198, 161, 91, 0.24), transparent 62%),
    linear-gradient(180deg, rgba(228, 206, 154, 0.08), transparent 46%);
}

.page-faq .faq-hero .index-label {
  margin: 0;
  color: var(--gold-300);
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  font-size: clamp(25px, 5.6vw, 43px);
  line-height: 1.26;
  color: var(--paper-100);
}

.page-faq .faq-hero__lead {
  margin: 16px 0 0;
  max-width: 44em;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: rgba(245, 240, 230, 0.8);
}

.page-faq .faq-hero__tags {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-hero__figure {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: rgba(228, 206, 154, 0.08);
  box-shadow: inset 0 0 0 1px var(--hairline-dark);
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 1000 / 700;
  object-fit: cover;
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: center;
    gap: 42px;
    padding: 46px 44px;
  }
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 30px;
  margin-top: 38px;
}

@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 272px minmax(0, 1fr);
    gap: 46px;
    align-items: start;
    margin-top: 48px;
  }
}

/* ---------- 左侧索引 ---------- */
.page-faq .faq-index__inner {
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  background: var(--paper-000);
  padding: 14px 12px 16px;
}

.page-faq .faq-index__inner > .index-label {
  margin: 0 0 10px;
  padding-left: 4px;
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

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

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--hairline);
  background: var(--paper-200);
  color: var(--ink-700);
  text-decoration: none;
  white-space: nowrap;
  font-family: var(--font-display);
  font-size: 14px;
  line-height: 1.4;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .faq-index__num {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--inkgold-600);
}

.page-faq .faq-index__count {
  font-size: 11px;
  color: var(--slate-400);
}

.page-faq .faq-index__link:hover {
  background: var(--gold-300);
  border-color: var(--gold-500);
  color: var(--ink-900);
}

.page-faq .faq-index__link:focus-visible {
  outline: 2px solid var(--gold-500);
  outline-offset: 2px;
}

.page-faq .faq-index__figure {
  margin: 14px 0 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-faq .faq-index__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

@media (min-width: 960px) {
  .page-faq .faq-index {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-index__inner {
    padding: 18px 14px 18px;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index__item {
    flex: none;
    width: 100%;
  }

  .page-faq .faq-index__link {
    border-radius: var(--radius-sm);
    border-color: transparent;
    background: transparent;
    box-shadow: inset 2px 0 0 transparent;
    padding: 10px 12px;
    white-space: normal;
    font-size: 14.5px;
  }

  .page-faq .faq-index__link:hover {
    background: var(--paper-200);
    border-color: transparent;
    box-shadow: inset 2px 0 0 var(--gold-500);
  }

  .page-faq .faq-index__count {
    margin-left: auto;
  }
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-cat {
  scroll-margin-top: 120px;
}

.page-faq .faq-cat + .faq-cat {
  margin-top: 44px;
}

.page-faq .faq-cat__head {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--hairline);
}

.page-faq .faq-cat__head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 56px;
  height: 2px;
  background: var(--gold-500);
}

.page-faq .faq-cat__num {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gold-500);
}

.page-faq .faq-cat__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.01em;
  font-size: clamp(20px, 3.6vw, 26px);
  line-height: 1.3;
  color: var(--ink-900);
}

.page-faq .faq-cat__count {
  margin-left: auto;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--slate-400);
}

.page-faq .faq-cat__items {
  margin-top: 18px;
}

/* ---------- 折叠条目 ---------- */
.page-faq details.faq {
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  background: var(--paper-000);
  overflow: hidden;
  transition: border-color 0.24s var(--ease), box-shadow 0.24s var(--ease);
}

.page-faq details.faq + details.faq {
  margin-top: 10px;
}

.page-faq details.faq[open] {
  border-color: rgba(198, 161, 91, 0.55);
  box-shadow: 0 10px 24px -20px rgba(11, 27, 46, 0.55);
}

.page-faq details.faq > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15.5px;
  line-height: 1.55;
  color: var(--ink-900);
  transition: background 0.2s var(--ease);
}

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

.page-faq details.faq > summary:hover {
  background: var(--paper-200);
}

.page-faq details.faq > summary:focus-visible {
  outline: 2px solid var(--gold-500);
  outline-offset: -2px;
}

.page-faq .faq__index {
  flex: none;
  padding-top: 2px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold-500);
}

.page-faq .faq__q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq__caret {
  flex: none;
  position: relative;
  width: 22px;
  height: 22px;
  margin-top: 1px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--hairline);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq__caret::before,
.page-faq .faq__caret::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--inkgold-600);
  border-radius: 2px;
  transform: translate(-50%, -50%);
}

.page-faq .faq__caret::before {
  width: 10px;
  height: 1.5px;
}

.page-faq .faq__caret::after {
  width: 1.5px;
  height: 10px;
  transition: transform 0.28s var(--ease), opacity 0.2s var(--ease);
}

.page-faq details.faq[open] .faq__caret {
  border-color: var(--gold-500);
  background: rgba(228, 206, 154, 0.28);
}

.page-faq details.faq[open] .faq__caret::after {
  opacity: 0;
  transform: translate(-50%, -50%) scaleY(0);
}

.page-faq details.faq .faq__body {
  padding: 2px 16px 18px;
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-500);
}

.page-faq details.faq .faq__body p {
  margin: 0;
}

.page-faq details.faq .faq__body p + p {
  margin-top: 10px;
}

@media (min-width: 720px) {
  .page-faq details.faq > summary {
    padding: 17px 20px;
    font-size: 16px;
  }

  .page-faq details.faq .faq__body {
    padding: 2px 20px 20px 46px;
  }
}

/* ---------- 步骤列表 ---------- */
.page-faq .faq__steps {
  counter-reset: faqstep;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq__steps + p {
  margin-top: 12px;
}

.page-faq .faq__steps li {
  counter-increment: faqstep;
  position: relative;
  padding: 0 0 12px 36px;
}

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

.page-faq .faq__steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  padding: 1px 6px;
  border-radius: var(--radius-pill);
  background: var(--paper-200);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  line-height: 1.5;
  color: var(--inkgold-600);
}

.page-faq .faq__steps li::after {
  content: "";
  position: absolute;
  left: 13px;
  top: 21px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, rgba(198, 161, 91, 0.5), rgba(198, 161, 91, 0.08));
}

.page-faq .faq__steps li:last-child::after {
  display: none;
}

/* ---------- 底部联系面板 ---------- */
.page-faq .faq-help {
  position: relative;
  overflow: hidden;
  margin-top: 52px;
  padding: 28px 20px 26px;
  border-radius: var(--radius-lg);
  background: var(--ink-700);
  color: var(--paper-100);
}

.page-faq .faq-help::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(120% 90% at 6% 0%, rgba(78, 124, 116, 0.34), transparent 58%);
}

.page-faq .faq-help > * {
  position: relative;
  z-index: 1;
}

.page-faq .faq-help .index-label {
  margin: 0;
  color: var(--gold-300);
}

.page-faq .faq-help h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.015em;
  font-size: clamp(21px, 3.8vw, 28px);
  line-height: 1.32;
  color: var(--paper-100);
}

.page-faq .faq-help__text > p {
  margin: 14px 0 0;
  max-width: 40em;
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(245, 240, 230, 0.78);
}

.page-faq .faq-help__checklist {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
}

.page-faq .faq-help__checklist li {
  position: relative;
  padding: 7px 0 7px 22px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.7;
  color: rgba(245, 240, 230, 0.9);
  border-bottom: 1px solid var(--hairline-dark);
}

.page-faq .faq-help__checklist li:last-child {
  border-bottom: 0;
}

.page-faq .faq-help__checklist li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 15px;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--gold-500);
}

.page-faq .faq-help__links a {
  color: var(--gold-300);
  text-decoration: none;
  border-bottom: 1px solid rgba(228, 206, 154, 0.5);
}

.page-faq .faq-help__links a:hover {
  color: var(--paper-100);
  border-bottom-color: var(--paper-100);
}

.page-faq .faq-help__contact {
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid var(--hairline-dark);
}

.page-faq .faq-help__contact .contact-list__key {
  color: rgba(245, 240, 230, 0.62);
}

.page-faq .faq-help__contact .contact-list__val {
  color: var(--paper-100);
}

.page-faq .faq-help__contact .contact-note {
  color: rgba(245, 240, 230, 0.66);
}

.page-faq .faq-help__cta {
  margin-top: 20px;
  display: inline-block;
}

@media (min-width: 860px) {
  .page-faq .faq-help {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 46px;
    align-items: start;
    padding: 42px 40px;
  }

  .page-faq .faq-help__contact {
    margin-top: 0;
    padding-top: 0;
    border-top: 0;
    border-left: 1px solid var(--hairline-dark);
    padding-left: 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq details.faq,
  .page-faq .faq__caret,
  .page-faq .faq__caret::after,
  .page-faq .faq-index__link {
    transition: none;
  }
}