.page-faq {
  --faq-hair: var(--line);
  --faq-gap: clamp(20px, 3.4vw, 44px);
}

/* ---------- 面包屑与首屏 ---------- */
.page-faq .breadcrumb {
  padding-top: clamp(20px, 3vw, 32px);
}

.page-faq .faq-hero {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  padding-block: clamp(26px, 4.5vw, 52px) clamp(30px, 4vw, 46px);
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-hero__copy {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-faq .faq-hero__title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.35rem, 7.6vw, 5rem);
  line-height: 1.02;
  letter-spacing: -0.015em;
  color: var(--paper);
  margin: 0;
  text-wrap: balance;
}

.page-faq .faq-hero__lead {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--muted);
  max-width: 62ch;
  margin: 0;
}

.page-faq .faq-hero__lead .data-num {
  color: var(--cyan);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}

.page-faq .faq-hero__media {
  margin: 0;
}

.page-faq .faq-hero__media .media__mask {
  aspect-ratio: 3 / 2;
  border: 1px solid var(--faq-hair);
  box-shadow: 8px 8px 0 -1px var(--ink-800), 16px 16px 0 -2px var(--ink-700);
}

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

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: center;
  }
}

/* ---------- 侧栏目录 + 正文 ---------- */
.page-faq .faq-shell {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  padding-block: clamp(26px, 3.6vw, 44px) clamp(48px, 7vw, 96px);
}

.page-faq .faq-toc {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.page-faq .faq-toc__item {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  flex: 0 0 auto;
  padding: 9px 16px;
  border: 1px solid var(--faq-hair);
  border-radius: var(--pill);
  background: transparent;
  color: var(--muted);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-toc__num {
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--cyan-soft);
}

.page-faq .faq-toc__item:hover {
  border-color: var(--cyan);
  color: var(--paper);
}

.page-faq .faq-toc__item[aria-current="location"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-900);
}

.page-faq .faq-toc__item[aria-current="location"] .faq-toc__num {
  color: var(--ink-900);
}

.page-faq .faq-body {
  display: grid;
  gap: clamp(6px, 1.4vw, 14px);
  min-width: 0;
}

@media (min-width: 960px) {
  .page-faq .faq-shell {
    grid-template-columns: 216px minmax(0, 1fr);
    align-items: start;
  }
  .page-faq .faq-toc {
    position: sticky;
    top: 104px;
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
    gap: 8px;
  }
  .page-faq .faq-toc__item {
    width: 100%;
    justify-content: flex-start;
  }
}

/* ---------- 章节通用 ---------- */
.page-faq .faq-sec {
  padding-block: clamp(30px, 4.4vw, 52px);
  border-top: 1px solid var(--faq-hair);
  scroll-margin-top: 120px;
  min-width: 0;
}

.page-faq .faq-sec:first-child {
  border-top: 0;
  padding-top: clamp(10px, 1.6vw, 18px);
}

.page-faq .faq-sec__head {
  display: grid;
  gap: 6px 20px;
  margin-bottom: clamp(20px, 2.8vw, 34px);
}

.page-faq .faq-sec__num {
  font-family: var(--font-data);
  font-size: clamp(2.1rem, 5.4vw, 3.2rem);
  font-weight: 300;
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: var(--amber);
}

.page-faq .faq-sec__title {
  font-family: var(--font-heading);
  font-size: clamp(1.35rem, 3.1vw, 2rem);
  font-weight: 600;
  line-height: 1.28;
  color: var(--paper);
  margin: 6px 0 0;
}

.page-faq .faq-sec__note {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--muted);
  max-width: 62ch;
  margin: 10px 0 0;
}

@media (min-width: 760px) {
  .page-faq .faq-sec__head {
    grid-template-columns: 76px minmax(0, 1fr);
    align-items: start;
  }
  .page-faq .faq-sec__num {
    padding-top: 4px;
  }
}

/* ---------- 五步流程 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 18px;
  padding-block: clamp(16px, 2.2vw, 22px);
  border-top: 1px solid var(--faq-hair);
  position: relative;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  top: -1px;
  width: 0;
  height: 1px;
  background: var(--cyan);
  transition: width 0.5s var(--ease);
}

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

.page-faq .faq-step:first-child::before {
  display: none;
}

.page-faq .faq-step__num {
  font-family: var(--font-data);
  font-size: clamp(1.65rem, 4vw, 2.5rem);
  font-weight: 300;
  line-height: 0.92;
  letter-spacing: -0.04em;
  color: var(--amber);
  min-width: 1.4em;
}

.page-faq .faq-step__body {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.page-faq .faq-step__title {
  font-family: var(--font-heading);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--paper);
  margin: 0;
  line-height: 1.45;
}

.page-faq .faq-step__body p {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--muted);
  margin: 0;
  max-width: 64ch;
}

.page-faq .faq-step__body p .data-num {
  color: var(--cyan-soft);
}

.page-faq .faq-step__check {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding-top: 2px;
}

.page-faq .faq-step__check .tag {
  flex: 0 0 auto;
}

@media (min-width: 760px) {
  .page-faq .faq-step__num {
    padding-top: 2px;
  }
}

/* ---------- 指南要点三栏 ---------- */
.page-faq .faq-panels {
  display: grid;
  gap: clamp(14px, 2vw, 20px);
}

@media (min-width: 780px) {
  .page-faq .faq-panels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .faq-panel {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: clamp(20px, 2.4vw, 26px);
}

.page-faq .faq-panel__label {
  color: var(--cyan);
  margin: 0;
}

.page-faq .faq-panel__title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.42;
  color: var(--paper);
  margin: 0;
}

.page-faq .faq-panel p {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--muted);
  margin: 0;
}

.page-faq .faq-panel__meta {
  padding-top: 10px;
  border-top: 1px solid var(--faq-hair);
  font-size: 0.9rem !important;
  color: var(--cyan-soft) !important;
}

.page-faq .faq-panel__meta .data-num {
  color: var(--amber);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-qa-wrap {
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-qa {
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-qa summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  padding-block: clamp(15px, 2vw, 20px);
  cursor: pointer;
  list-style: none;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-qa summary:hover {
  color: var(--cyan);
}

.page-faq .faq-qa__arrow {
  color: var(--cyan);
  flex: 0 0 auto;
  transition: transform var(--dur) var(--ease);
}

.page-faq .faq-qa[open] .faq-qa__arrow {
  transform: rotate(180deg);
}

.page-faq .faq-qa[open] summary {
  color: var(--cyan-soft);
}

.page-faq .faq-qa__body {
  padding: 0 0 clamp(18px, 2.4vw, 24px);
  padding-inline-end: clamp(0px, 4vw, 60px);
}

.page-faq .faq-qa__body p {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--muted);
  margin: 0;
  max-width: 66ch;
}

.page-faq .faq-qa__body .data-num {
  color: var(--cyan-soft);
}

.page-faq .faq-figure {
  margin: clamp(26px, 3.4vw, 40px) 0 0;
}

.page-faq .faq-figure .media__mask {
  aspect-ratio: 3 / 2;
  border: 1px solid var(--faq-hair);
}

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

@media (min-width: 820px) {
  .page-faq .faq-figure {
    max-width: 78%;
  }
}

/* ---------- 本地记录 ---------- */
.page-faq .faq-notes {
  display: grid;
  gap: clamp(18px, 2.6vw, 28px);
}

@media (min-width: 820px) {
  .page-faq .faq-notes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .faq-note {
  padding-top: 16px;
  border-top: 2px solid var(--ink-700);
}

.page-faq .faq-note__title {
  font-family: var(--font-heading);
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--cyan-soft);
  margin: 0 0 10px;
}

.page-faq .faq-note p {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--muted);
  margin: 0;
}

/* ---------- 显示与访问 ---------- */
.page-faq .faq-cols {
  display: grid;
  gap: clamp(18px, 2.6vw, 30px);
}

@media (min-width: 820px) {
  .page-faq .faq-cols {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .faq-col {
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-faq .faq-col__title {
  font-family: var(--font-heading);
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--paper);
  margin: 0;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-col p {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.85;
  color: var(--muted);
  margin: 0;
}

.page-faq .faq-col .data-num {
  color: var(--amber);
  font-size: 1.15em;
}

/* ---------- 收尾：怎么问我们 ---------- */
.page-faq .faq-sec--ask {
  background: var(--ink-800);
  border-top-color: var(--ink-700);
  padding-inline: clamp(18px, 3vw, 36px);
  margin-inline: clamp(-18px, -3vw, -36px);
  border-radius: 2px;
}

.page-faq .faq-ask {
  display: grid;
  gap: clamp(14px, 2vw, 22px);
}

@media (min-width: 780px) {
  .page-faq .faq-ask {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

.page-faq .faq-ask__card {
  padding: clamp(20px, 2.6vw, 28px);
  background: var(--ink-900);
}

.page-faq .faq-ask__title {
  font-family: var(--font-heading);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--paper);
  margin: 0 0 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-hair);
}

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

.page-faq .faq-ask__list li {
  position: relative;
  padding-inline-start: 20px;
  font-family: var(--font-body);
  font-size: 0.9875rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-ask__list li::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  top: 0.65em;
  width: 8px;
  height: 8px;
  border: 1px solid var(--amber);
  transform: rotate(45deg);
}

.page-faq .faq-ask__contact {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-ask__contact li {
  display: grid;
  gap: 3px;
}

.page-faq .faq-ask__label {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-ask__contact .footer-contact__value {
  font-family: var(--font-data);
  font-size: 1rem;
  letter-spacing: 0.01em;
  color: var(--cyan);
  word-break: break-all;
}

.page-faq .faq-ask__more {
  margin: clamp(22px, 3vw, 32px) 0 0;
  font-family: var(--font-body);
  font-size: 0.9875rem;
  line-height: 1.9;
  color: var(--muted);
  max-width: 68ch;
}

.page-faq .faq-ask__more a {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid var(--amber-deep);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

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

/* ---------- 焦点与降级 ---------- */
.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--cyan-soft);
  outline-offset: 3px;
  border-radius: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-toc__item,
  .page-faq .faq-qa summary,
  .page-faq .faq-qa__arrow,
  .page-faq .faq-step::before {
    transition: none !important;
  }
}
</style>