.page-faq {
  color: var(--text);
  background: var(--ink-900);
  padding-bottom: clamp(48px, 8vw, 100px);
  overflow-x: clip;
}

/* 面包屑 */
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: calc(var(--header-h) + 24px);
  padding-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.page-faq .breadcrumb__item {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.18s var(--ease);
}
.page-faq .breadcrumb__item[aria-current="page"] {
  color: var(--teal-bright);
}
.page-faq .breadcrumb__item:hover {
  color: var(--text);
}
.page-faq .breadcrumb__sep {
  color: var(--line);
}

/* 首屏检索 */
.page-faq .faq-hero {
  padding-top: clamp(18px, 3.2vw, 34px);
  padding-bottom: clamp(26px, 4.4vw, 44px);
}
.page-faq .faq-hero__rail {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 10px 20px;
  padding-bottom: 14px;
  margin-bottom: clamp(16px, 2.6vw, 22px);
  border-bottom: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.09em;
  color: var(--muted);
  text-transform: uppercase;
}
.page-faq .faq-hero__live {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.page-faq .faq-hero__live i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--teal-bright);
  box-shadow: 0 0 0 4px rgba(102, 245, 219, 0.14);
}
.page-faq .faq-hero__meta {
  color: var(--amber);
  letter-spacing: 0.06em;
  text-transform: none;
}
.page-faq .faq-hero .u-display {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(36px, 7.2vw, 80px);
  line-height: 1;
  letter-spacing: -0.025em;
  color: var(--text);
  text-wrap: balance;
}
.page-faq .faq-hero .u-lead {
  margin: 0 0 clamp(20px, 3.4vw, 32px);
  max-width: 66ch;
  color: var(--muted);
  font-size: clamp(14.5px, 1.35vw, 17px);
  line-height: 1.75;
}

/* 检索式入口 */
.page-faq .faq-search {
  position: relative;
  padding: 18px 18px 18px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(14, 34, 48, 0.94), rgba(8, 22, 31, 0.78));
  box-shadow: var(--shadow-soft);
}
.page-faq .faq-search::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16%;
  width: 3px;
  height: 68%;
  border-radius: 2px;
  background: linear-gradient(var(--teal), var(--teal-deep));
}
.page-faq .faq-search__bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 14px;
  margin-bottom: 14px;
  border-bottom: 1px dashed var(--line-soft);
  font-size: 13.5px;
}
.page-faq .faq-search__glyph {
  font-size: 16px;
  line-height: 1;
  color: var(--teal);
}
.page-faq .faq-search__text {
  flex: 1;
  min-width: 0;
  color: var(--text);
  font-weight: 600;
  letter-spacing: 0.01em;
}
.page-faq .faq-search__hint {
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--muted);
  white-space: nowrap;
}
.page-faq .faq-search__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease);
}
.page-faq .faq-chip .u-mono {
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--teal);
}
.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  color: var(--text);
  border-color: var(--teal);
  background: rgba(35, 201, 176, 0.08);
  outline: none;
}

/* 双栏布局 */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
  padding-top: clamp(18px, 3.2vw, 34px);
}
@media (min-width: 900px) {
  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: clamp(36px, 5vw, 72px);
  }
}

/* 左侧坐标索引 */
.page-faq .faq-index {
  min-width: 0;
}
@media (min-width: 900px) {
  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 12px);
    align-self: start;
  }
}
.page-faq .faq-index .u-eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--teal);
}
.page-faq .faq-index__list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  border-top: 1px solid var(--line);
}
.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 2px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--muted);
  text-decoration: none;
  font-size: 13.5px;
  line-height: 1.45;
  transition: color 0.18s var(--ease), padding-left 0.18s var(--ease);
}
.page-faq .faq-index__link .u-mono {
  flex-shrink: 0;
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--teal);
}
.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--text);
  padding-left: 8px;
  outline: none;
}
.page-faq .faq-index__foot {
  display: grid;
  gap: 12px;
  padding-top: 14px;
  border-top: 1px dashed var(--line-soft);
}
.page-faq .faq-index__foot .u-annot {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: var(--muted);
}
.page-faq .faq-index__foot .btn {
  justify-self: start;
}

/* 主问答区 */
.page-faq .faq-main {
  display: grid;
  gap: clamp(36px, 6vw, 72px);
  min-width: 0;
}
.page-faq .faq-group {
  min-width: 0;
  scroll-margin-top: calc(var(--header-h) + 16px);
}
.page-faq .faq-group__head {
  margin: 0 0 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}
.page-faq .faq-group__num {
  display: inline-block;
  margin-bottom: 10px;
  padding: 3px 8px;
  border: 1px solid var(--line);
  color: var(--teal);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.page-faq .faq-group__head h2 {
  margin: 0 0 10px;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.15;
  letter-spacing: -0.015em;
  font-weight: 800;
  color: var(--text);
}
.page-faq .faq-group__head p {
  margin: 0;
  max-width: 70ch;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}
.page-faq .faq-group__head strong {
  color: var(--text);
  font-weight: 700;
}

/* 图片 */
.page-faq .faq-figure {
  margin: 0 0 22px;
  border: 1px solid var(--line-soft);
  background: var(--ink-850);
  overflow: hidden;
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.page-faq .faq-figure figcaption {
  margin: 0;
  padding: 10px 14px;
  border-top: 1px solid var(--line-soft);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
}

/* 手风琴 */
.page-faq .faq-list {
  border-top: 1px solid var(--line-soft);
  background: rgba(14, 34, 48, 0.24);
}
.page-faq .faq-item {
  position: relative;
  border-bottom: 1px solid var(--line-soft);
  transition: background 0.18s var(--ease);
}
.page-faq .faq-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 2px;
  background: transparent;
  transition: background 0.18s var(--ease);
}
.page-faq .faq-item[open]::before {
  background: var(--teal);
}
.page-faq .faq-item[open] {
  background: linear-gradient(180deg, rgba(14, 34, 48, 0.82), rgba(14, 34, 48, 0.32));
}
.page-faq .faq-item summary {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  list-style: none;
  cursor: pointer;
  padding: 16px 46px 16px 18px;
  color: var(--text);
  font-size: 14.5px;
  line-height: 1.55;
  transition: color 0.18s var(--ease), background 0.18s var(--ease);
}
.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 16px;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  line-height: 20px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--teal);
  transition: color 0.18s var(--ease);
}
.page-faq .faq-item[open] summary::after {
  content: "−";
  color: var(--teal-bright);
}
.page-faq .faq-item summary:hover {
  background: rgba(35, 201, 176, 0.06);
  color: var(--teal-bright);
}
.page-faq .faq-item summary:focus-visible {
  outline: 1px solid var(--teal);
  outline-offset: -2px;
}
.page-faq .faq-item__code {
  flex-shrink: 0;
  padding-top: 2px;
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--teal);
}
.page-faq .faq-item[open] .faq-item__code {
  color: var(--teal-bright);
}
.page-faq .faq-item__body {
  padding: 0 18px 18px;
  color: var(--muted);
  font-size: 13.8px;
  line-height: 1.75;
}
.page-faq .faq-item__body > p {
  margin: 0 0 12px;
}
.page-faq .faq-item__body > p:last-child {
  margin-bottom: 0;
}
.page-faq .faq-item__body a {
  color: var(--teal-bright);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 三步流程 */
.page-faq .faq-steps {
  list-style: none;
  margin: 12px 0 4px;
  padding: 0;
  display: grid;
  gap: 8px;
}
.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 11px 13px;
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--teal-deep);
  background: rgba(7, 19, 31, 0.55);
  color: var(--text);
  font-size: 13px;
  line-height: 1.6;
}
.page-faq .faq-steps li .u-mono {
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: var(--teal-bright);
  padding-top: 1px;
}

/* 联系客服准备清单 */
.page-faq .faq-prep {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-faq .faq-prep li {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--line-soft);
  background: rgba(14, 34, 48, 0.5);
  color: var(--text);
  font-size: 13.5px;
  line-height: 1.65;
}
.page-faq .faq-prep li .u-mono {
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--amber);
  padding-top: 1px;
}

/* 联系信息块 */
.page-faq .faq-contact {
  padding: 20px 18px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(14, 34, 48, 0.9), rgba(7, 19, 31, 0.6));
  display: grid;
  gap: 0;
}
.page-faq .faq-contact__row {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 12px 0;
  border-top: 1px solid var(--line-soft);
}
.page-faq .faq-contact__row:first-child {
  border-top: 0;
  padding-top: 0;
}
.page-faq .faq-contact__label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.page-faq .faq-contact__value {
  color: var(--text);
  font-size: 13.5px;
  line-height: 1.55;
  word-break: break-word;
}
.page-faq .faq-contact__value.u-mono {
  font-size: 12.8px;
  letter-spacing: 0.02em;
}
.page-faq .faq-contact__note {
  margin: 10px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line-soft);
  color: var(--muted);
  font-size: 12px;
  line-height: 1.7;
}
.page-faq .faq-contact__note a {
  color: var(--teal-bright);
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (max-width: 640px) {
  .page-faq .faq-hero .u-display {
    letter-spacing: -0.015em;
  }
  .page-faq .faq-search {
    padding: 16px 14px 16px 18px;
  }
  .page-faq .faq-search__hint {
    display: none;
  }
  .page-faq .faq-item summary {
    padding: 14px 42px 14px 14px;
    font-size: 14px;
  }
  .page-faq .faq-item__body {
    padding: 0 14px 16px;
  }
  .page-faq .faq-contact {
    padding: 16px 14px;
  }
  .page-faq .faq-contact__row {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition: none !important;
    animation: none !important;
  }
}

.page-faq {
  color: var(--text);
  background: var(--ink-900);
  padding-bottom: clamp(48px, 8vw, 100px);
  overflow-x: clip;
}

/* 面包屑 */
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: calc(var(--header-h) + 24px);
  padding-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.page-faq .breadcrumb__item {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.18s var(--ease);
}
.page-faq .breadcrumb__item[aria-current="page"] {
  color: var(--teal-bright);
}
.page-faq .breadcrumb__item:hover {
  color: var(--text);
}
.page-faq .breadcrumb__sep {
  color: var(--line);
}

/* 首屏检索 */
.page-faq .faq-hero {
  padding-top: clamp(18px, 3.2vw, 34px);
  padding-bottom: clamp(26px, 4.4vw, 44px);
}
.page-faq .faq-hero__rail {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 10px 20px;
  padding-bottom: 14px;
  margin-bottom: clamp(16px, 2.6vw, 22px);
  border-bottom: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.09em;
  color: var(--muted);
  text-transform: uppercase;
}
.page-faq .faq-hero__live {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.page-faq .faq-hero__live i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--teal-bright);
  box-shadow: 0 0 0 4px rgba(102, 245, 219, 0.14);
}
.page-faq .faq-hero__meta {
  color: var(--amber);
  letter-spacing: 0.06em;
  text-transform: none;
}
.page-faq .faq-hero .u-display {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(36px, 7.2vw, 80px);
  line-height: 1;
  letter-spacing: -0.025em;
  color: var(--text);
  text-wrap: balance;
}
.page-faq .faq-hero .u-lead {
  margin: 0 0 clamp(20px, 3.4vw, 32px);
  max-width: 66ch;
  color: var(--muted);
  font-size: clamp(14.5px, 1.35vw, 17px);
  line-height: 1.75;
}

/* 检索式入口 */
.page-faq .faq-search {
  position: relative;
  padding: 18px 18px 18px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(14, 34, 48, 0.94), rgba(8, 22, 31, 0.78));
  box-shadow: var(--shadow-soft);
}
.page-faq .faq-search::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16%;
  width: 3px;
  height: 68%;
  border-radius: 2px;
  background: linear-gradient(var(--teal), var(--teal-deep));
}
.page-faq .faq-search__bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 14px;
  margin-bottom: 14px;
  border-bottom: 1px dashed var(--line-soft);
  font-size: 13.5px;
}
.page-faq .faq-search__glyph {
  font-size: 16px;
  line-height: 1;
  color: var(--teal);
}
.page-faq .faq-search__text {
  flex: 1;
  min-width: 0;
  color: var(--text);
  font-weight: 600;
  letter-spacing: 0.01em;
}
.page-faq .faq-search__hint {
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--muted);
  white-space: nowrap;
}
.page-faq .faq-search__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12.5px;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease), background 0.18s var(--ease);
}
.page-faq .faq-chip .u-mono {
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--teal);
}
.page-faq .faq-chip:hover,
.page-faq .faq-chip:focus-visible {
  color: var(--text);
  border-color: var(--teal);
  background: rgba(35, 201, 176, 0.08);
  outline: none;
}

/* 双栏布局 */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
  padding-top: clamp(18px, 3.2vw, 34px);
}
@media (min-width: 900px) {
  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: clamp(36px, 5vw, 72px);
  }
}

/* 左侧坐标索引 */
.page-faq .faq-index {
  min-width: 0;
}
@media (min-width: 900px) {
  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 12px);
    align-self: start;
  }
}
.page-faq .faq-index .u-eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--teal);
}
.page-faq .faq-index__list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  border-top: 1px solid var(--line);
}
.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 2px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--muted);
  text-decoration: none;
  font-size: 13.5px;
  line-height: 1.45;
  transition: color 0.18s var(--ease), padding-left 0.18s var(--ease);
}
.page-faq .faq-index__link .u-mono {
  flex-shrink: 0;
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--teal);
}
.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--text);
  padding-left: 8px;
  outline: none;
}
.page-faq .faq-index__foot {
  display: grid;
  gap: 12px;
  padding-top: 14px;
  border-top: 1px dashed var(--line-soft);
}
.page-faq .faq-index__foot .u-annot {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: 0.03em;
  color: var(--muted);
}
.page-faq .faq-index__foot .btn {
  justify-self: start;
}

/* 主问答区 */
.page-faq .faq-main {
  display: grid;
  gap: clamp(36px, 6vw, 72px);
  min-width: 0;
}
.page-faq .faq-group {
  min-width: 0;
  scroll-margin-top: calc(var(--header-h) + 16px);
}
.page-faq .faq-group__head {
  margin: 0 0 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}
.page-faq .faq-group__num {
  display: inline-block;
  margin-bottom: 10px;
  padding: 3px 8px;
  border: 1px solid var(--line);
  color: var(--teal);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.page-faq .faq-group__head h2 {
  margin: 0 0 10px;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.15;
  letter-spacing: -0.015em;
  font-weight: 800;
  color: var(--text);
}
.page-faq .faq-group__head p {
  margin: 0;
  max-width: 70ch;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.75;
}
.page-faq .faq-group__head strong {
  color: var(--text);
  font-weight: 700;
}

/* 图片 */
.page-faq .faq-figure {
  margin: 0 0 22px;
  border: 1px solid var(--line-soft);
  background: var(--ink-850);
  overflow: hidden;
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.page-faq .faq-figure figcaption {
  margin: 0;
  padding: 10px 14px;
  border-top: 1px solid var(--line-soft);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
}

/* 手风琴 */
.page-faq .faq-list {
  border-top: 1px solid var(--line-soft);
  background: rgba(14, 34, 48, 0.24);
}
.page-faq .faq-item {
  position: relative;
  border-bottom: 1px solid var(--line-soft);
  transition: background 0.18s var(--ease);
}
.page-faq .faq-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 2px;
  background: transparent;
  transition: background 0.18s var(--ease);
}
.page-faq .faq-item[open]::before {
  background: var(--teal);
}
.page-faq .faq-item[open] {
  background: linear-gradient(180deg, rgba(14, 34, 48, 0.82), rgba(14, 34, 48, 0.32));
}
.page-faq .faq-item summary {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  list-style: none;
  cursor: pointer;
  padding: 16px 46px 16px 18px;
  color: var(--text);
  font-size: 14.5px;
  line-height: 1.55;
  transition: color 0.18s var(--ease), background 0.18s var(--ease);
}
.page-faq .faq-item summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 16px;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  line-height: 20px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--teal);
  transition: color 0.18s var(--ease);
}
.page-faq .faq-item[open] summary::after {
  content: "−";
  color: var(--teal-bright);
}
.page-faq .faq-item summary:hover {
  background: rgba(35, 201, 176, 0.06);
  color: var(--teal-bright);
}
.page-faq .faq-item summary:focus-visible {
  outline: 1px solid var(--teal);
  outline-offset: -2px;
}
.page-faq .faq-item__code {
  flex-shrink: 0;
  padding-top: 2px;
  font-size: 10.5px;
  letter-spacing: 0.1em;
  color: var(--teal);
}
.page-faq .faq-item[open] .faq-item__code {
  color: var(--teal-bright);
}
.page-faq .faq-item__body {
  padding: 0 18px 18px;
  color: var(--muted);
  font-size: 13.8px;
  line-height: 1.75;
}
.page-faq .faq-item__body > p {
  margin: 0 0 12px;
}
.page-faq .faq-item__body > p:last-child {
  margin-bottom: 0;
}
.page-faq .faq-item__body a {
  color: var(--teal-bright);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* 三步流程 */
.page-faq .faq-steps {
  list-style: none;
  margin: 12px 0 4px;
  padding: 0;
  display: grid;
  gap: 8px;
}
.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 11px 13px;
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--teal-deep);
  background: rgba(7, 19, 31, 0.55);
  color: var(--text);
  font-size: 13px;
  line-height: 1.6;
}
.page-faq .faq-steps li .u-mono {
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: var(--teal-bright);
  padding-top: 1px;
}

/* 联系客服准备清单 */
.page-faq .faq-prep {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 10px;
}
.page-faq .faq-prep li {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--line-soft);
  background: rgba(14, 34, 48, 0.5);
  color: var(--text);
  font-size: 13.5px;
  line-height: 1.65;
}
.page-faq .faq-prep li .u-mono {
  font-size: 10.5px;
  letter-spacing: 0.08em;
  color: var(--amber);
  padding-top: 1px;
}

/* 联系信息块 */
.page-faq .faq-contact {
  padding: 20px 18px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(14, 34, 48, 0.9), rgba(7, 19, 31, 0.6));
  display: grid;
  gap: 0;
}
.page-faq .faq-contact__row {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 12px 0;
  border-top: 1px solid var(--line-soft);
}
.page-faq .faq-contact__row:first-child {
  border-top: 0;
  padding-top: 0;
}
.page-faq .faq-contact__label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.page-faq .faq-contact__value {
  color: var(--text);
  font-size: 13.5px;
  line-height: 1.55;
  word-break: break-word;
}
.page-faq .faq-contact__value.u-mono {
  font-size: 12.8px;
  letter-spacing: 0.02em;
}
.page-faq .faq-contact__note {
  margin: 10px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line-soft);
  color: var(--muted);
  font-size: 12px;
  line-height: 1.7;
}
.page-faq .faq-contact__note a {
  color: var(--teal-bright);
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (max-width: 640px) {
  .page-faq .faq-hero .u-display {
    letter-spacing: -0.015em;
  }
  .page-faq .faq-search {
    padding: 16px 14px 16px 18px;
  }
  .page-faq .faq-search__hint {
    display: none;
  }
  .page-faq .faq-item summary {
    padding: 14px 42px 14px 14px;
    font-size: 14px;
  }
  .page-faq .faq-item__body {
    padding: 0 14px 16px;
  }
  .page-faq .faq-contact {
    padding: 16px 14px;
  }
  .page-faq .faq-contact__row {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition: none !important;
    animation: none !important;
  }
}