.page-faq {
  --faq-line: rgba(12, 26, 42, 0.13);
  --faq-line-strong: rgba(176, 122, 42, 0.45);
  --faq-ink-soft: rgba(35, 42, 51, 0.78);
  background: var(--paper);
  color: var(--graphite);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-faq h1,
.page-faq h2,
.page-faq h3 {
  margin: 0;
  color: var(--ink);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.22;
}

.page-faq p {
  margin: 0;
}

.page-faq .mono {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
}

.page-faq a {
  color: var(--dye);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-faq a:hover {
  color: var(--copper);
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  padding: 20px 0 56px;
  background:
    radial-gradient(120% 90% at 92% 8%, rgba(220, 231, 239, 0.85) 0%, rgba(245, 239, 228, 0) 62%),
    var(--paper);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: -10%;
  width: 46%;
  height: 6px;
  background: linear-gradient(90deg, var(--copper) 0%, rgba(176, 122, 42, 0) 100%);
  transform: rotate(-4deg);
  transform-origin: right top;
}

.page-faq .faq-hero__body {
  display: grid;
  gap: 30px;
  margin-top: 26px;
}

.page-faq .faq-hero__lead .eyebrow {
  margin-bottom: 16px;
}

.page-faq .faq-hero h1 {
  font-size: clamp(2rem, 6.2vw, 3.4rem);
  max-width: 15em;
}

.page-faq .faq-hero__intro {
  margin-top: 20px;
  max-width: 34em;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .faq-search {
  margin-top: 26px;
  max-width: 520px;
  padding: 14px 22px 16px;
  background: var(--white);
  border: 1px solid var(--faq-line);
  border-radius: var(--r-pill);
  transition: border-color var(--dur) var(--ease);
}

.page-faq .faq-search:focus-within {
  border-color: var(--faq-line-strong);
}

.page-faq .faq-search__label {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--copper);
  font-family: var(--font-mono);
  text-transform: uppercase;
}

.page-faq .faq-search__input {
  width: 100%;
  margin-top: 4px;
  padding: 4px 0;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.5;
}

.page-faq .faq-search__input:focus {
  outline: none;
}

.page-faq .faq-search__input::placeholder {
  color: rgba(35, 42, 51, 0.42);
}

.page-faq .faq-search__hint {
  margin-top: 6px;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: rgba(35, 42, 51, 0.6);
}

.page-faq .faq-hero__board {
  padding: 26px 24px 22px;
  background: var(--ink);
  border-radius: 26px 26px 26px 74px;
  color: var(--paper);
}

.page-faq .faq-hero__board-title {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  font-family: var(--font-mono);
  color: var(--copper-soft);
  text-transform: uppercase;
}

.page-faq .faq-hero__board-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}

.page-faq .faq-hero__board-row {
  display: grid;
  grid-template-columns: 2.2em 1fr;
  gap: 2px 10px;
  padding: 13px 0;
  border-top: 1px dashed rgba(232, 200, 143, 0.26);
}

.page-faq .faq-hero__board-row:first-child {
  border-top: 0;
}

.page-faq .faq-hero__board-row .mono {
  color: var(--copper-soft);
  padding-top: 2px;
}

.page-faq .faq-hero__board-name {
  font-weight: 700;
  font-size: 1.0625rem;
  color: var(--paper);
}

.page-faq .faq-hero__board-desc {
  grid-column: 2;
  font-size: 0.8125rem;
  line-height: 1.6;
  color: rgba(245, 239, 228, 0.66);
}

/* 场景区 */
.page-faq .faq-scenes {
  padding: 8px 0 64px;
}

.page-faq .faq-section-head h2 {
  font-size: clamp(1.5rem, 3.6vw, 2.2rem);
  margin-top: 10px;
}

.page-faq .faq-section-head__note {
  margin-top: 14px;
  max-width: 40em;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .faq-scene-list {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .faq-scene {
  position: relative;
  padding: 26px 24px 24px;
  background: var(--white);
  border: 1px solid var(--faq-line);
  border-radius: var(--r-lg);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .faq-scene:nth-child(2),
.page-faq .faq-scene:nth-child(4) {
  background: var(--mist);
  border-color: rgba(45, 95, 139, 0.18);
}

.page-faq .faq-scene:hover {
  border-color: var(--faq-line-strong);
  transform: translateY(-2px);
}

.page-faq .faq-scene__no {
  display: inline-block;
  color: var(--copper);
  font-weight: 700;
}

.page-faq .faq-scene h3 {
  margin-top: 8px;
  font-size: 1.1875rem;
}

.page-faq .faq-scene p {
  margin-top: 10px;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--faq-ink-soft);
}

.page-faq .faq-scene__link {
  display: inline-block;
  margin-top: 16px;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--copper);
  padding-bottom: 2px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-scene__link:hover {
  color: var(--copper);
  border-color: var(--ink);
}

.page-faq .faq-scene-figure {
  margin: 34px 0 0;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--ink-deep);
  border: 1px solid var(--faq-line);
}

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

.page-faq .faq-scene-figure figcaption {
  padding: 14px 20px 16px;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: rgba(245, 239, 228, 0.72);
  font-family: var(--font-mono);
}

/* 问答区 */
.page-faq .faq-body {
  padding: 0 0 68px;
}

.page-faq .faq-body__frame {
  display: grid;
  gap: 26px;
}

.page-faq .faq-rail {
  padding: 20px 20px 22px;
  background: var(--white);
  border: 1px solid var(--faq-line);
  border-radius: var(--r-lg);
}

.page-faq .faq-rail__title {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  font-family: var(--font-mono);
  color: var(--copper);
  text-transform: uppercase;
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--r-pill);
  background: var(--mist);
  color: var(--ink);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-rail__link .mono {
  color: var(--copper);
  font-size: 0.75rem;
}

.page-faq .faq-rail__link:hover {
  background: var(--ink);
  color: var(--paper);
}

.page-faq .faq-rail__link:hover .mono {
  color: var(--copper-soft);
}

.page-faq .faq-rail__cta {
  display: inline-block;
  margin-top: 18px;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--clay);
  text-decoration: none;
  border-bottom: 1px solid var(--clay);
  padding-bottom: 2px;
}

.page-faq .faq-rail__cta:hover {
  color: var(--ink);
  border-color: var(--ink);
}

.page-faq .faq-stack {
  display: grid;
  gap: 44px;
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-space) + 16px);
}

.page-faq .faq-group h2 {
  font-size: clamp(1.375rem, 3.2vw, 1.875rem);
  padding-left: 16px;
  border-left: 4px solid var(--copper);
}

.page-faq .faq-group__note {
  margin: 12px 0 20px;
  max-width: 42em;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--faq-ink-soft);
}

.page-faq .faq-list {
  display: grid;
  gap: 12px;
}

.page-faq .faq-item {
  background: var(--white);
  border: 1px solid var(--faq-line);
  border-radius: var(--r-md);
  padding: 0 20px;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-item:hover {
  border-color: var(--faq-line-strong);
}

.page-faq .faq-item[open] {
  background: var(--white);
  border-color: var(--faq-line-strong);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ink);
}

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

.page-faq .faq-item__toggle {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border: 1px solid var(--faq-line-strong);
  border-radius: 50%;
}

.page-faq .faq-item__toggle::before,
.page-faq .faq-item__toggle::after {
  content: "";
  position: absolute;
  left: 5px;
  right: 5px;
  top: 50%;
  height: 1.5px;
  background: var(--copper);
  transform: translateY(-50%);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.page-faq .faq-item__toggle::after {
  transform: translateY(-50%) rotate(90deg);
}

.page-faq .faq-item[open] .faq-item__toggle::after {
  transform: translateY(-50%) rotate(0deg);
  opacity: 0;
}

.page-faq .faq-item__a {
  padding: 2px 0 22px;
  border-top: 1px dashed var(--faq-line);
  margin-top: -2px;
}

.page-faq .faq-item__a p {
  margin-top: 14px;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .faq-steps {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: faq-step;
}

.page-faq .faq-steps li {
  position: relative;
  counter-increment: faq-step;
  padding-left: 34px;
  margin-top: 10px;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--graphite);
}

.page-faq .faq-steps li::before {
  content: counter(faq-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--copper);
}

.page-faq .faq-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding: 10px 14px;
  background: var(--mist);
  border-radius: var(--r-sm);
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--faq-ink-soft);
}

.page-faq .faq-meta .mono {
  padding: 2px 8px;
  border-radius: var(--r-pill);
  background: var(--white);
  color: var(--dye);
}

.page-faq .faq-device-figure {
  margin: 0 0 24px;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--faq-line);
  background: var(--mist);
}

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

.page-faq .faq-device-figure figcaption {
  padding: 12px 18px 14px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.6;
  color: var(--dye);
  background: var(--white);
}

/* 末尾咨询 */
.page-faq .faq-help {
  padding: 0 0 72px;
}

.page-faq .faq-help__inner {
  padding: 34px 26px 32px;
  background: var(--ink);
  border-radius: 34px;
  color: var(--paper);
  display: grid;
  gap: 28px;
}

.page-faq .faq-help .eyebrow {
  color: var(--copper-soft);
}

.page-faq .faq-help h2 {
  margin-top: 12px;
  font-size: clamp(1.5rem, 3.8vw, 2.25rem);
  color: var(--paper);
}

.page-faq .faq-help__lead p {
  margin-top: 14px;
  max-width: 30em;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: rgba(245, 239, 228, 0.74);
}

.page-faq .faq-help__prep {
  padding: 20px 20px 22px;
  border: 1px solid rgba(232, 200, 143, 0.28);
  border-radius: var(--r-md);
}

.page-faq .faq-help__prep-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--copper-soft);
  text-transform: uppercase;
}

.page-faq .faq-help__prep-list {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-help__prep-list li {
  position: relative;
  padding-left: 18px;
  margin-top: 10px;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: rgba(245, 239, 228, 0.86);
}

.page-faq .faq-help__prep-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--copper);
}

.page-faq .faq-help__cta {
  display: inline-block;
  margin-top: 22px;
  text-decoration: none;
}

.page-faq .faq-help__more {
  margin-top: 16px;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: rgba(245, 239, 228, 0.6);
}

.page-faq .faq-help__more a {
  color: var(--copper-soft);
}

.page-faq .faq-help__more a:hover {
  color: var(--paper);
}

@media (min-width: 640px) {
  .page-faq .faq-hero__board {
    padding: 30px 30px 26px;
  }

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

  .page-faq .faq-help__inner {
    padding: 40px 36px 38px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero {
    padding: 28px 0 72px;
  }

  .page-faq .faq-hero__body {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.85fr);
    gap: 56px;
    align-items: start;
    margin-top: 34px;
  }

  .page-faq .faq-hero__board {
    margin-top: 12px;
  }

  .page-faq .faq-scenes {
    padding-bottom: 84px;
  }

  .page-faq .faq-body__frame {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-space) + 16px);
    padding: 24px 22px 26px;
  }

  .page-faq .faq-rail__list {
    display: grid;
    gap: 6px;
  }

  .page-faq .faq-rail__link {
    width: 100%;
    border-radius: var(--r-sm);
    background: transparent;
    padding: 9px 12px;
    justify-content: flex-start;
  }

  .page-faq .faq-rail__link:hover {
    background: var(--mist);
    color: var(--ink);
  }

  .page-faq .faq-rail__link:hover .mono {
    color: var(--copper);
  }

  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.95fr);
    gap: 48px;
    align-items: start;
    padding: 48px 44px 46px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-scene {
    padding: 30px 28px 28px;
  }

  .page-faq .faq-item {
    padding: 0 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
  }
}