/* ===== 支持中心 page-faq ===== */
.page-faq {
  --faq-grid-line: rgba(42, 74, 63, .38);
  --faq-lime-soft: rgba(198, 255, 61, .08);
  --faq-amber-soft: rgba(255, 165, 59, .12);
  color: var(--text);
}

/* ---- 顶部 ---- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-top: calc(var(--header-h) + clamp(14px, 3vw, 30px));
  padding-bottom: clamp(22px, 4vw, 40px);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--faq-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-grid-line) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(130% 100% at 10% 0%, #000 18%, transparent 76%);
  mask-image: radial-gradient(130% 100% at 10% 0%, #000 18%, transparent 76%);
  pointer-events: none;
}

.page-faq .faq-hero > .wrap {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.page-faq .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--fog);
  margin-bottom: clamp(16px, 3vw, 26px);
}

.page-faq .breadcrumb__link {
  color: var(--fog);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .breadcrumb__link:hover,
.page-faq .breadcrumb__link:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.page-faq .breadcrumb__current {
  color: var(--text);
}

.page-faq .faq-crumb-sep {
  color: var(--line);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
  align-items: end;
}

.page-faq .faq-eyebrow {
  margin: 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--lime);
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-size: clamp(28px, 4.4vw, 50px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -.012em;
  color: var(--text);
  max-width: 20ch;
}

.page-faq .faq-lede {
  margin: 18px 0 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.78;
  color: var(--mute);
}

.page-faq .faq-hero__panel {
  border: 1px solid var(--line);
  background: linear-gradient(158deg, var(--panel) 0%, rgba(11, 31, 26, .92) 100%);
  box-shadow: var(--shadow-soft);
  padding: 16px 18px 18px;
}

.page-faq .faq-hero__panel-title {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--fog);
}

.page-faq .faq-stat {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 0;
  border-top: 1px dashed var(--line-soft);
}

.page-faq .faq-stat:first-of-type {
  border-top: 0;
}

.page-faq .faq-stat__k {
  font-size: 13px;
  color: var(--mute);
  min-width: 0;
}

.page-faq .faq-stat__v {
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: .02em;
  color: var(--lime);
  text-align: right;
  min-width: 0;
}

.page-faq .faq-stat__v--amber {
  color: var(--amber);
}

.page-faq .faq-hero__media-wrap {
  position: relative;
  z-index: 1;
  margin-top: clamp(22px, 4vw, 38px);
}

.page-faq .faq-hero__media-wrap .media-frame {
  border: 1px solid var(--line);
  background: var(--bg-deep);
}

.page-faq .faq-hero__media-wrap img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* ---- 整体骨架 ---- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 40px);
  padding: clamp(26px, 4vw, 48px) 0 clamp(48px, 7vw, 90px);
}

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

/* ---- 左侧分类索引 ---- */
.page-faq .faq-toc {
  border: 1px solid var(--line);
  background: rgba(20, 52, 43, .34);
  padding: 14px 16px 16px;
  min-width: 0;
}

.page-faq .faq-toc__title {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--fog);
}

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

.page-faq .faq-toc .toc__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--mute);
  font-size: 13px;
  line-height: 1.4;
  text-decoration: none;
  transition: border-color .18s var(--ease), color .18s var(--ease), background-color .18s var(--ease), transform .18s var(--ease);
}

.page-faq .faq-toc .toc__link:hover,
.page-faq .faq-toc .toc__link:focus-visible {
  border-color: var(--lime);
  color: var(--text);
}

.page-faq .faq-toc .toc__link[data-active="true"] {
  border-color: var(--lime);
  color: var(--text);
  background: var(--faq-lime-soft);
}

.page-faq .toc__idx {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .08em;
  color: var(--fog);
  transition: color .18s var(--ease);
}

.page-faq .faq-toc .toc__link:hover .toc__idx,
.page-faq .faq-toc .toc__link[data-active="true"] .toc__idx {
  color: var(--amber);
}

/* ---- 章节标题组 ---- */
.page-faq .faq-block + .faq-block {
  margin-top: clamp(34px, 5vw, 62px);
}

.page-faq .section-head {
  display: grid;
  gap: 7px;
  padding-bottom: 14px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--line);
}

.page-faq .section-num {
  margin: 0;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--fog);
}

.page-faq .section-title {
  margin: 0;
  font-size: clamp(20px, 2.4vw, 27px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -.005em;
  color: var(--text);
}

.page-faq .section-desc {
  margin: 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.72;
  color: var(--mute);
}

/* ---- 折叠问答 ---- */
.page-faq .faq-list {
  margin-top: 4px;
}

.page-faq .faq-item {
  position: relative;
  padding-left: 16px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--line);
  transition: background-color .18s var(--ease);
}

.page-faq .faq-item[open]::before {
  background: var(--lime);
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 4px 16px 0;
  cursor: pointer;
  list-style: none;
  font-size: clamp(15px, 1.5vw, 16.5px);
  font-weight: 500;
  line-height: 1.62;
  color: var(--text);
  transition: color .18s var(--ease);
}

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

.page-faq .faq-q:hover,
.page-faq .faq-q:focus-visible {
  color: var(--lime);
}

.page-faq .faq-sign {
  flex: 0 0 auto;
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 6px;
  border: 1px solid var(--line);
  transition: border-color .18s var(--ease);
}

.page-faq .faq-sign::before,
.page-faq .faq-sign::after {
  content: "";
  position: absolute;
  background: var(--fog);
  transition: opacity .18s var(--ease), background-color .18s var(--ease), transform .18s var(--ease);
}

.page-faq .faq-sign::before {
  left: 50%;
  top: 2px;
  bottom: 2px;
  width: 1px;
  transform: translateX(-50%);
}

.page-faq .faq-sign::after {
  top: 50%;
  left: 2px;
  right: 2px;
  height: 1px;
  transform: translateY(-50%);
}

.page-faq .faq-item:hover .faq-sign,
.page-faq .faq-item[open] .faq-sign {
  border-color: var(--amber);
}

.page-faq .faq-item[open] .faq-sign {
  border-color: var(--lime);
}

.page-faq .faq-item[open] .faq-sign::before {
  opacity: 0;
}

.page-faq .faq-item[open] .faq-sign::after {
  background: var(--lime);
}

.page-faq .faq-a {
  padding: 0 4px 18px 0;
  max-width: 72ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mute);
}

.page-faq .faq-a p {
  margin: 0;
}

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

.page-faq .faq-a a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 255, 61, .38);
  transition: border-color .18s var(--ease), color .18s var(--ease);
}

.page-faq .faq-a a:hover,
.page-faq .faq-a a:focus-visible {
  border-bottom-color: var(--amber);
  color: var(--amber);
}

/* ---- 导出区配图 ---- */
.page-faq .faq-figure {
  margin: clamp(18px, 3vw, 26px) 0 clamp(6px, 1vw, 10px);
  border: 1px solid var(--line);
  background: var(--bg-deep);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

/* ---- 联系卡片 ---- */
.page-faq .faq-contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: clamp(18px, 3vw, 26px);
  border: 1px solid var(--line);
  background: var(--line);
}

.page-faq .faq-contact__cell {
  display: block;
  padding: 18px 18px 20px;
  background: var(--panel);
  text-decoration: none;
  color: inherit;
  min-width: 0;
  transition: background-color .18s var(--ease);
}

.page-faq a.faq-contact__cell:hover,
.page-faq a.faq-contact__cell:focus-visible {
  background: var(--panel-2);
}

.page-faq .faq-contact__cell--static {
  background: rgba(18, 21, 19, .72);
}

.page-faq .faq-contact__key {
  display: block;
  margin-bottom: 10px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--fog);
}

.page-faq .faq-contact__val {
  display: block;
  font-family: var(--mono);
  font-size: clamp(13px, 1.5vw, 16px);
  line-height: 1.5;
  letter-spacing: .01em;
  color: var(--lime);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-faq .faq-contact__val--amber {
  color: var(--amber);
}

.page-faq .faq-contact__note {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.62;
  color: var(--mute);
}

.page-faq .faq-list--contact {
  margin-top: 4px;
}

/* ---- 底部引导 ---- */
.page-faq .faq-more {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: clamp(24px, 4vw, 36px);
  padding: 20px 20px 22px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--lime);
  background: linear-gradient(120deg, rgba(20, 52, 43, .6) 0%, rgba(18, 21, 19, .55) 100%);
}

.page-faq .faq-more__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mute);
  max-width: 52ch;
}

.page-faq .faq-more__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---- 响应式 ---- */
@media (min-width: 640px) {
  .page-faq .faq-contact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.7fr) minmax(240px, .85fr);
  }

  .page-faq .faq-hero__panel {
    padding: 20px 22px 22px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-body {
    grid-template-columns: 226px minmax(0, 1fr);
    gap: clamp(30px, 4vw, 56px);
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--header-h) + 22px);
    align-self: start;
    border: 0;
    border-left: 2px solid var(--line);
    background: none;
    padding: 2px 0 2px 16px;
  }

  .page-faq .faq-toc .toc__list {
    display: block;
    gap: 0;
  }

  .page-faq .faq-toc .toc__list > li + li {
    margin-top: 2px;
  }

  .page-faq .faq-toc .toc__link {
    display: flex;
    width: 100%;
    padding: 8px 0;
    border: 0;
    background: transparent;
    font-size: 13.5px;
  }

  .page-faq .faq-toc .toc__link:hover,
  .page-faq .faq-toc .toc__link:focus-visible,
  .page-faq .faq-toc .toc__link[data-active="true"] {
    background: transparent;
    transform: translateX(2px);
  }

  .page-faq .faq-toc .toc__link[data-active="true"] {
    color: var(--lime);
  }
}

@media (max-width: 520px) {
  .page-faq .faq-hero h1 {
    max-width: none;
  }

  .page-faq .faq-item {
    padding-left: 12px;
  }

  .page-faq .faq-q {
    gap: 12px;
    padding: 14px 2px 14px 0;
  }

  .page-faq .faq-more {
    padding: 18px 16px 20px;
  }

  .page-faq .faq-more__actions .btn {
    flex: 1 1 auto;
    text-align: center;
  }
}