.page-faq {
  --faq-pad: 64px;
}

.page-faq .faq-crumb {
  padding-top: 18px;
}

/* 首屏 */
.page-faq .faq-hero {
  padding: 24px 0 64px;
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(0, 216, 230, .10), transparent 58%),
    linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(30px, 5.4vw, 50px);
  line-height: 1.22;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .faq-hero__intro {
  margin: 18px 0 0;
  max-width: 40em;
  font-size: 16.5px;
  line-height: 1.88;
  color: var(--txt-soft);
}

.page-faq .faq-hero__chips {
  margin-top: 24px;
}

.page-faq .faq-hero__note {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--slate);
}

/* 版本查询卡 */
.page-faq .faq-vcard {
  position: relative;
  overflow: hidden;
  padding: 26px 22px 22px;
  border-radius: var(--r);
  background: linear-gradient(152deg, var(--space) 0%, var(--space-2) 100%);
  color: var(--paper);
  box-shadow: var(--shadow-2);
}

.page-faq .faq-vcard::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -70px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(0, 216, 230, .30), transparent 68%);
  pointer-events: none;
}

.page-faq .faq-vcard__label {
  position: relative;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan-soft);
}

.page-faq .faq-vcard__num {
  position: relative;
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(54px, 13vw, 84px);
  line-height: 1;
  letter-spacing: -.03em;
  color: var(--cyan-soft);
  text-shadow: 0 0 36px rgba(0, 216, 230, .35);
}

.page-faq .faq-vcard__rows {
  position: relative;
  display: grid;
  gap: 0;
  margin: 20px 0 0;
}

.page-faq .faq-vcard__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line-dark);
  font-size: 13px;
}

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

.page-faq .faq-vcard__row dt {
  color: rgba(244, 239, 230, .62);
}

.page-faq .faq-vcard__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--paper);
}

.page-faq .faq-vcard .copy-btn {
  position: relative;
  display: block;
  width: 100%;
  min-height: 48px;
  margin-top: 16px;
  padding: 0 16px;
  border: 1px solid rgba(255, 122, 47, .52);
  border-radius: var(--r);
  background: rgba(255, 122, 47, .14);
  color: #FFBE97;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  cursor: pointer;
  transition: background .18s var(--ease), color .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .faq-vcard .copy-btn:hover {
  background: var(--orange);
  border-color: var(--orange);
  color: #200D02;
}

.page-faq .faq-vcard .copy-btn.is-copied {
  background: rgba(0, 216, 230, .18);
  border-color: rgba(0, 216, 230, .55);
  color: var(--cyan-soft);
}

.page-faq .faq-vcard__figure {
  position: relative;
  margin: 18px 0 0;
  border: 1px solid var(--line-dark);
  border-radius: var(--r);
  overflow: hidden;
  background: var(--space-2);
}

.page-faq .faq-vcard__figure img {
  display: block;
  width: 100%;
  height: 180px;
  object-fit: cover;
  object-position: top center;
}

/* 问题分类索引 */
.page-faq .faq-index-section {
  padding: 62px 0 56px;
  background: var(--paper);
}

.page-faq .faq-index__head {
  display: grid;
  gap: 26px;
  margin-bottom: 34px;
}

.page-faq .faq-index__title {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 34px);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-faq .faq-index__lede {
  margin: 14px 0 0;
  max-width: 42em;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--txt-soft);
}

.page-faq .faq-index__figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
  background: var(--paper-2);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-index__figure img {
  display: block;
  width: 100%;
  height: auto;
}

.page-faq .faq-index {
  display: flex;
  gap: 12px;
  margin: 0;
  padding: 0 0 10px;
  list-style: none;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__item {
  flex: 0 0 232px;
  scroll-snap-align: start;
}

.page-faq .faq-index__link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 48px;
  height: 100%;
  padding: 16px 15px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--line);
  border-radius: var(--r);
  background: var(--paper-3);
  color: inherit;
  text-decoration: none;
  transition: transform .18s var(--ease), border-color .18s var(--ease), box-shadow .18s var(--ease);
}

.page-faq .faq-index__link:hover {
  transform: translateY(-2px);
  border-left-color: var(--orange);
  box-shadow: var(--shadow-1);
}

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

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--orange);
}

.page-faq .faq-index__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-faq .faq-index__desc {
  font-size: 12.5px;
  line-height: 1.62;
  color: var(--slate);
}

.page-faq .faq-index__count {
  margin-top: auto;
  padding-top: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--steel);
}

/* 手册式双栏 */
.page-faq .faq-manual {
  padding: 64px 0 68px;
  background: linear-gradient(180deg, var(--paper) 0%, var(--paper-3) 100%);
}

.page-faq .faq-manual__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
}

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

.page-faq .faq-status {
  padding: 20px 18px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--paper-3);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-status__eyebrow {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--slate);
}

.page-faq .faq-status__num {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 40px;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--ink);
}

.page-faq .faq-status__list {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-status__list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--line);
  font-size: 13px;
}

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

.page-faq .faq-status__list span {
  color: var(--slate);
}

.page-faq .faq-status__list b {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--ink);
}

.page-faq .faq-status__action {
  display: block;
  width: 100%;
  min-height: 48px;
  text-align: center;
  line-height: 46px;
  padding: 0 14px;
}

.page-faq .faq-side__links {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.page-faq .faq-side__links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  color: var(--steel);
  font-size: 14px;
  text-decoration: none;
  transition: border-color .18s var(--ease), color .18s var(--ease), background .18s var(--ease);
}

.page-faq .faq-side__links a:hover,
.page-faq .faq-side__links a:focus-visible {
  border-color: var(--orange);
  color: var(--ink);
  background: var(--paper-3);
}

.page-faq .faq-manual__title {
  margin: 0 0 28px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(22px, 3vw, 28px);
  line-height: 1.3;
  color: var(--ink);
}

.page-faq .faq-manual__title::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 10px;
  vertical-align: middle;
  background: var(--orange);
}

.page-faq .faq-group {
  margin-bottom: 42px;
  scroll-margin-top: 96px;
}

.page-faq .faq-group:last-child {
  margin-bottom: 0;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--ink);
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--orange);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: 19px;
  font-weight: 700;
  color: var(--ink);
}

.page-faq .faq-group__meta {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .05em;
  color: var(--slate);
  white-space: nowrap;
}

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

.page-faq .faq-item summary {
  position: relative;
  display: block;
  min-height: 48px;
  padding: 17px 44px 17px 0;
  list-style: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
  transition: color .18s var(--ease);
}

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

.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--steel);
  transition: color .18s var(--ease);
}

.page-faq .faq-item[open] summary {
  color: var(--steel);
}

.page-faq .faq-item[open] summary::after {
  content: "−";
  color: var(--orange);
}

.page-faq .faq-item summary:hover {
  color: var(--steel);
}

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

.page-faq .faq-item__body {
  padding: 0 0 20px;
}

.page-faq .faq-item__body p {
  margin: 0;
  max-width: 44em;
  font-size: 15.5px;
  line-height: 1.86;
  color: var(--txt-soft);
}

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

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

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

/* 版本对照深色面板 */
.page-faq .faq-compare {
  position: relative;
  overflow: hidden;
  padding: 62px 0;
  background: linear-gradient(158deg, var(--space) 0%, var(--ink) 100%);
  color: var(--paper);
  scroll-margin-top: 96px;
}

.page-faq .faq-compare::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(139, 244, 247, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139, 244, 247, .05) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.page-faq .faq-compare .container {
  position: relative;
}

.page-faq .faq-compare .eyebrow {
  color: var(--cyan);
}

.page-faq .faq-compare__title {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 34px);
  line-height: 1.32;
  color: var(--paper);
}

.page-faq .faq-compare__lede {
  margin: 14px 0 0;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(244, 239, 230, .68);
}

.page-faq .faq-compare__scroll {
  margin-top: 30px;
  border: 1px solid var(--line-dark);
  border-radius: var(--r);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-table {
  width: 100%;
  min-width: 660px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .faq-table caption {
  padding: 13px 16px;
  border-bottom: 1px solid var(--line-dark);
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: rgba(244, 239, 230, .52);
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line-dark);
  text-align: left;
  vertical-align: top;
  line-height: 1.68;
}

.page-faq .faq-table thead th {
  background: rgba(0, 216, 230, .06);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--cyan-soft);
  white-space: nowrap;
}

.page-faq .faq-table tbody th {
  width: 21%;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .faq-table td {
  color: rgba(244, 239, 230, .72);
}

.page-faq .faq-table thead th.is-current {
  background: rgba(255, 122, 47, .20);
  color: var(--orange);
}

.page-faq .faq-table td.is-current {
  background: rgba(255, 122, 47, .09);
  color: #FFC7A3;
}

.page-faq .faq-table tbody tr:last-child th,
.page-faq .faq-table tbody tr:last-child td {
  border-bottom: 0;
}

/* 联络 */
.page-faq .faq-contact {
  padding: 64px 0 76px;
  background: var(--paper-2);
}

.page-faq .faq-contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.page-faq .faq-contact__title {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 32px);
  line-height: 1.32;
  color: var(--ink);
}

.page-faq .faq-contact__text {
  margin: 14px 0 0;
  max-width: 34em;
  font-size: 15.5px;
  line-height: 1.86;
  color: var(--txt-soft);
}

.page-faq .faq-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-contact__actions .btn {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
}

.page-faq .faq-contact__card {
  padding: 20px 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--paper-3);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-contact__card .contact-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 16px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line);
}

.page-faq .faq-contact__card .contact-row:last-of-type {
  border-bottom: 0;
}

.page-faq .faq-contact__card .contact-label {
  flex: 0 0 88px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--slate);
}

.page-faq .faq-contact__card .contact-value {
  flex: 1 1 200px;
  min-width: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .faq-contact__note {
  margin: 16px 0 0;
  font-size: 12.5px;
  line-height: 1.72;
  color: var(--slate);
}

/* 中等屏 */
@media (min-width: 700px) {
  .page-faq .faq-index__head {
    grid-template-columns: 1.1fr .9fr;
    align-items: end;
    gap: 40px;
  }

  .page-faq .faq-index__item {
    flex: 0 0 240px;
  }

  .page-faq .faq-contact__card .contact-label {
    flex-basis: 96px;
  }
}

/* 桌面 */
@media (min-width: 920px) {
  .page-faq .faq-hero {
    padding: 34px 0 76px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: 1.06fr .94fr;
    gap: 58px;
    align-items: start;
  }

  .page-faq .faq-vcard {
    padding: 30px 28px 26px;
  }

  .page-faq .faq-vcard__figure img {
    height: 200px;
  }

  .page-faq .faq-index-section {
    padding: 78px 0 70px;
  }

  .page-faq .faq-index {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 14px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index__item {
    flex: none;
    min-width: 0;
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: 1.04fr .96fr;
    gap: 56px;
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-manual {
    padding: 82px 0 88px;
  }

  .page-faq .faq-manual__grid {
    grid-template-columns: 292px minmax(0, 1fr);
    gap: 60px;
    align-items: start;
  }

  .page-faq .faq-manual__side {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-compare {
    padding: 78px 0;
  }

  .page-faq .faq-contact {
    padding: 78px 0 90px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .faq-item summary,
  .page-faq .faq-vcard .copy-btn,
  .page-faq .faq-side__links a {
    transition: none;
  }

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