/* ===== 支持中心 · 页面专属样式 ===== */
.page-faq {
  --faq-line: rgba(238, 243, 241, .15);
  --faq-line-2: rgba(238, 243, 241, .3);
  --faq-surface: rgba(22, 36, 47, .62);
  --faq-gold-fill: rgba(242, 194, 48, .13);
  position: relative;
  background: var(--ink);
  color: var(--mist);
  overflow-x: clip;
}

/* ---- 首屏 ---- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(22px, 5vw, 56px) 0 clamp(26px, 4vw, 46px);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  right: -12%;
  top: 18%;
  width: min(620px, 82vw);
  height: min(320px, 46vw);
  background: linear-gradient(118deg, rgba(0, 168, 112, .38), rgba(242, 194, 48, .14) 58%, transparent 78%);
  border-radius: var(--r-xl);
  transform: skewY(-9deg);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero .container {
  position: relative;
  z-index: 1;
}

.page-faq .breadcrumb {
  margin-bottom: clamp(20px, 4vw, 40px);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: 22px;
}

.page-faq .faq-hero-main h1 {
  margin: 0 0 18px;
  font-size: clamp(1.85rem, 5.4vw, 3.3rem);
  line-height: 1.08;
  letter-spacing: -.02em;
  max-width: 12em;
  color: var(--mist);
}

.page-faq .faq-hero-main .eyebrow {
  margin: 0 0 14px;
}

.page-faq .faq-lede {
  margin: 0;
  max-width: 34em;
  font-size: clamp(1rem, 2.1vw, 1.1rem);
  line-height: 1.8;
  color: var(--grey);
}

.page-faq .faq-railnote {
  margin: 0;
  padding-left: 14px;
  border-left: 2px solid var(--gold);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.8;
  letter-spacing: .06em;
  color: var(--grey);
}

/* ---- 宽幅条带图 ---- */
.page-faq .faq-banner {
  margin: clamp(6px, 2vw, 18px) 0 clamp(30px, 5vw, 52px);
}

.page-faq .faq-banner .media-caption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--grey);
}

/* ---- 分类快捷入口 ---- */
.page-faq .faq-jump {
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
  background: var(--faq-surface);
}

.page-faq .faq-jump-inner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-top: 14px;
  padding-bottom: 14px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-jump-inner::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-jump-label {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--grey);
  text-transform: uppercase;
}

.page-faq .faq-jump-pill {
  flex: 0 0 auto;
  display: inline-block;
  padding: 8px 16px;
  border: 1px solid var(--faq-line-2);
  border-radius: var(--pill);
  font-size: 13px;
  color: var(--mist);
  text-decoration: none;
  white-space: nowrap;
  transition: background .28s var(--ease), border-color .28s var(--ease), color .28s var(--ease);
}

.page-faq .faq-jump-pill:hover,
.page-faq .faq-jump-pill:focus-visible {
  background: var(--green);
  border-color: var(--green);
  color: #fff;
}

/* ---- 正文两栏 ---- */
.page-faq .faq-body {
  display: grid;
  gap: 26px;
  padding: clamp(30px, 5vw, 56px) 0 clamp(20px, 4vw, 40px);
}

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

.page-faq .faq-index-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--green);
  text-transform: uppercase;
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-index-list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-index-list li {
  flex: 0 0 auto;
}

.page-faq .faq-index-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 14px;
  border: 1px solid var(--faq-line);
  border-radius: var(--pill);
  font-size: 13px;
  color: var(--grey);
  text-decoration: none;
  white-space: nowrap;
  transition: color .26s var(--ease), border-color .26s var(--ease), background .26s var(--ease);
}

.page-faq .faq-index-list a::before {
  display: none;
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  color: var(--gold);
  border-color: var(--gold);
  background: var(--faq-gold-fill);
}

/* ---- 问题分组 ---- */
.page-faq .faq-groups {
  min-width: 0;
}

.page-faq .faq-group {
  border-top: 1px solid var(--faq-line);
  padding: clamp(24px, 4vw, 40px) 0 clamp(10px, 2vw, 22px);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-faq .faq-group-head {
  margin-bottom: clamp(14px, 2.5vw, 24px);
}

.page-faq .faq-group-head .eyebrow {
  margin: 0 0 10px;
}

.page-faq .faq-group-head h2 {
  margin: 0;
  font-size: clamp(1.3rem, 3vw, 1.85rem);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--mist);
}

.page-faq .faq-diagram {
  margin: 0 0 clamp(18px, 3vw, 28px);
}

.page-faq .faq-diagram .media-caption {
  margin-top: 10px;
  font-size: 13px;
  color: var(--grey);
}

/* ---- 折叠问答 ---- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-line);
  border-left: 2px solid transparent;
  padding-left: 16px;
  transition: border-left-color .3s var(--ease), background .3s var(--ease);
}

.page-faq .faq-item[open] {
  border-left-color: var(--gold);
  background: linear-gradient(90deg, rgba(242, 194, 48, .07), transparent 42%);
}

.page-faq .faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 0;
}

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

.page-faq .faq-item summary:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
  border-radius: 6px;
}

.page-faq .faq-q {
  font-size: clamp(1rem, 2vw, 1.08rem);
  line-height: 1.55;
  font-weight: 600;
  color: var(--mist);
  transition: color .26s var(--ease);
}

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

.page-faq .faq-mark {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 3px;
  border: 1px solid var(--faq-line-2);
  border-radius: 50%;
  color: var(--grey);
  transition: transform .34s var(--ease), border-color .3s var(--ease), background .3s var(--ease), color .3s var(--ease);
}

.page-faq .faq-mark::before,
.page-faq .faq-mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  background: currentColor;
  border-radius: 2px;
}

.page-faq .faq-mark::before {
  width: 9px;
  height: 1.5px;
}

.page-faq .faq-mark::after {
  width: 1.5px;
  height: 9px;
  transition: opacity .24s var(--ease);
}

.page-faq .faq-item[open] .faq-mark {
  transform: rotate(90deg);
  border-color: var(--gold);
  background: var(--faq-gold-fill);
  color: var(--gold);
}

.page-faq .faq-item[open] .faq-mark::after {
  opacity: 0;
}

.page-faq .faq-a {
  max-width: 62ch;
  padding: 0 0 22px;
  font-size: clamp(.95rem, 1.8vw, 1rem);
  line-height: 1.85;
  color: var(--grey);
}

.page-faq .faq-a p {
  margin: 0 0 12px;
}

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

.page-faq .faq-next a {
  display: inline-block;
  font-size: 14px;
  color: var(--aqua);
  text-decoration: none;
  border-bottom: 1px solid rgba(31, 217, 196, .38);
  transition: color .24s var(--ease), border-color .24s var(--ease);
}

.page-faq .faq-next a::after {
  content: " →";
}

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

/* ---- 迷你示意表 ---- */
.page-faq .faq-table-wrap {
  margin: 6px 0 14px;
  overflow-x: auto;
}

.page-faq .faq-mini-table {
  width: 100%;
  min-width: 420px;
  border-collapse: collapse;
  font-size: 13.5px;
}

.page-faq .faq-mini-table caption {
  caption-side: top;
  text-align: left;
  padding-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--grey);
}

.page-faq .faq-mini-table th,
.page-faq .faq-mini-table td {
  text-align: left;
  padding: 10px 14px 10px 0;
  border-bottom: 1px solid var(--faq-line);
  vertical-align: top;
  line-height: 1.65;
}

.page-faq .faq-mini-table th {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .08em;
  color: var(--gold);
  white-space: nowrap;
}

.page-faq .faq-mini-table td:first-child {
  color: var(--mist);
  font-weight: 600;
  white-space: nowrap;
}

/* ---- 联系区块 ---- */
.page-faq .faq-contact {
  padding: clamp(30px, 5vw, 64px) 0 clamp(48px, 7vw, 88px);
}

.page-faq .faq-contact-card {
  position: relative;
  display: grid;
  gap: 26px;
  padding: clamp(26px, 4.5vw, 48px);
  border-radius: var(--r-l);
  background: linear-gradient(135deg, rgba(0, 168, 112, .2), rgba(10, 23, 35, .9) 52%, rgba(123, 92, 255, .16));
  border: 1px solid var(--faq-line);
  overflow: hidden;
}

.page-faq .faq-contact-card::after {
  content: "";
  position: absolute;
  right: -40px;
  bottom: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(242, 194, 48, .28), transparent 68%);
  pointer-events: none;
}

.page-faq .faq-contact-text {
  position: relative;
  z-index: 1;
}

.page-faq .faq-contact-text .eyebrow {
  margin: 0 0 10px;
}

.page-faq .faq-contact-text h2 {
  margin: 0 0 14px;
  font-size: clamp(1.35rem, 3.2vw, 2rem);
  line-height: 1.18;
  color: var(--mist);
}

.page-faq .faq-contact-text p {
  margin: 0 0 14px;
  max-width: 40em;
  font-size: clamp(.95rem, 1.9vw, 1.02rem);
  line-height: 1.8;
  color: var(--grey);
}

.page-faq .faq-contact-list {
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .faq-contact-list li {
  padding-top: 12px;
  border-top: 1px solid var(--faq-line-2);
}

.page-faq .faq-contact-key {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--gold);
}

.page-faq .faq-contact-val {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(.9rem, 2vw, 1rem);
  line-height: 1.6;
  color: var(--mist);
  word-break: break-word;
}

/* ---- 桌面 ---- */
@media (min-width: 760px) {
  .page-faq .faq-contact-card {
    grid-template-columns: minmax(0, 1fr) minmax(0, 300px);
    align-items: start;
    gap: clamp(30px, 4vw, 56px);
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, .68fr);
    align-items: end;
    gap: clamp(32px, 5vw, 72px);
  }

  .page-faq .faq-body {
    grid-template-columns: minmax(0, 226px) minmax(0, 1fr);
    gap: clamp(34px, 4.5vw, 68px);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    padding-top: 6px;
  }

  .page-faq .faq-index-list {
    display: block;
    overflow: visible;
  }

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

  .page-faq .faq-index-list a {
    padding: 11px 0;
    border: 0;
    border-radius: 0;
    background: none;
    white-space: normal;
    font-size: 14px;
  }

  .page-faq .faq-index-list a::before {
    display: block;
    content: "";
    flex: 0 0 auto;
    width: 3px;
    height: 14px;
    border-radius: 2px;
    background: var(--faq-line-2);
    transition: height .26s var(--ease), background .26s var(--ease);
  }

  .page-faq .faq-index-list a:hover::before,
  .page-faq .faq-index-list a:focus-visible::before {
    height: 22px;
    background: var(--gold);
  }

  .page-faq .faq-index-list a:hover,
  .page-faq .faq-index-list a:focus-visible {
    background: none;
    border: 0;
    color: var(--gold);
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-hero-main h1 {
    max-width: 11em;
  }
}

/* ---- 动效收敛 ---- */
@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}