/* ===== 帮助文档页 · 页面专属样式（作用域 .page-faq） ===== */

.page-faq {
  --faq-wine-soft: rgba(122, 31, 75, .34);
  --faq-wine-line: rgba(122, 31, 75, .62);
  --faq-line: rgba(242, 244, 255, .12);
  --faq-line-strong: rgba(242, 244, 255, .22);
  display: block;
  padding-bottom: 3rem;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 1.25rem 0 2.5rem;
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: -8rem;
  right: -6rem;
  width: 18rem;
  height: 18rem;
  background: radial-gradient(circle, rgba(22, 217, 227, .22), transparent 68%);
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.75rem;
}

.page-faq .faq-hero__bread {
  margin-bottom: 1.1rem;
}

.page-faq .faq-hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  margin: 0 0 .85rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-hero__kicker::before {
  content: "";
  width: 1.6rem;
  height: 3px;
  background: var(--cyan);
}

.page-faq .faq-hero__title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.95rem, 8.4vw, 3.2rem);
  line-height: 1.08;
  letter-spacing: -.025em;
  color: var(--fog);
  transform: rotate(-1.4deg);
  transform-origin: left center;
}

.page-faq .faq-hero__title em {
  font-style: normal;
  color: var(--cyan);
}

@supports (-webkit-text-stroke: 2px #000) {
  .page-faq .faq-hero__title em {
    color: transparent;
    -webkit-text-stroke: 2px var(--cyan);
  }
}

.page-faq .faq-hero__lead {
  max-width: 34rem;
  margin: 0 0 1.2rem;
  font-size: .98rem;
  line-height: 1.9;
  color: var(--graphite);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.page-faq .faq-hero__media {
  position: relative;
  margin: 0;
  isolation: isolate;
}

.page-faq .faq-hero__media::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  transform: translate(9px, 9px);
  border: 2px solid rgba(22, 217, 227, .45);
  clip-path: polygon(0 0, 100% 0, 100% 90%, 10% 100%, 0 86%);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 0, 100% 90%, 10% 100%, 0 86%);
}

.page-faq .faq-hero__media .media-frame__caption {
  margin-top: .9rem;
  font-size: .8rem;
  line-height: 1.7;
  color: var(--graphite);
}

/* ---------- 分类导航 ---------- */
.page-faq .faq-jump {
  padding: .25rem 0 1rem;
}

.page-faq .faq-jump__label {
  margin: 0 0 .7rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .22em;
  color: var(--graphite);
  text-transform: uppercase;
}

.page-faq .faq-jump__list {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-jump__link {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .5rem .9rem;
  border: 2px solid var(--faq-line-strong);
  border-radius: 999px;
  background: rgba(20, 22, 31, .72);
  color: var(--fog);
  font-size: .85rem;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  transition: border-color .2s var(--ease), transform .2s var(--ease), box-shadow .2s var(--ease);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  border-color: var(--face);
  transform: translateY(-2px);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--face) 22%, transparent);
}

.page-faq .faq-jump__dot {
  width: .55rem;
  height: .55rem;
  flex: none;
  background: var(--face);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding: 2.25rem 0 0;
  scroll-margin-top: 5.5rem;
}

.page-faq .faq-group__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .6rem .85rem;
  margin-bottom: 1.25rem;
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .2em;
  color: var(--graphite);
}

.page-faq .faq-group__title {
  position: relative;
  margin: 0;
  padding-bottom: .5rem;
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 5.2vw, 1.85rem);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--fog);
}

.page-faq .faq-group__title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 2.6rem;
  height: 4px;
  background: var(--face);
  transition: width .3s var(--ease), background-color .3s var(--ease);
}

.page-faq .faq-group:target .faq-group__title::after {
  width: 5.5rem;
}

.page-faq .faq-group__note {
  flex: 1 1 100%;
  margin: 0;
  font-size: .875rem;
  line-height: 1.75;
  color: var(--graphite);
}

/* ---------- 问答卡片 ---------- */
.page-faq .faq-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: .9rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-list > li {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-item {
  border: 2px solid var(--faq-line);
  background: var(--panel);
  box-shadow: var(--shadow-hard-sm);
  transition: border-color .22s var(--ease), box-shadow .22s var(--ease), background-color .22s var(--ease);
}

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

.page-faq .faq-item[open] {
  border-color: var(--face);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-item__summary {
  display: flex;
  align-items: flex-start;
  gap: .7rem;
  padding: 1rem 1.05rem;
  cursor: pointer;
  list-style: none;
  font-size: .96rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--fog);
}

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

.page-faq .faq-item__summary::marker {
  content: "";
}

.page-faq .faq-item__summary:focus-visible {
  outline: 2px solid var(--face);
  outline-offset: -3px;
}

.page-faq .faq-item__index {
  flex: none;
  font-family: var(--font-mono);
  font-size: .74rem;
  line-height: 2.1;
  letter-spacing: .06em;
  color: var(--face);
}

.page-faq .faq-item__q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-item__icon {
  position: relative;
  flex: none;
  width: 1.05rem;
  height: 1.05rem;
  margin-top: .35rem;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  margin-top: -1px;
  background: var(--face);
}

.page-faq .faq-item__icon::after {
  transition: transform .28s var(--ease), opacity .2s var(--ease);
}

.page-faq .faq-item[open] .faq-item__icon::after {
  transform: rotate(90deg);
  opacity: 0;
}

.page-faq .faq-item__body {
  position: relative;
  padding: .95rem 1.05rem 1.15rem 2.65rem;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-item__body::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--face);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform .34s var(--ease);
}

.page-faq .faq-item[open] .faq-item__body::before {
  transform: scaleY(1);
}

.page-faq .faq-item[open] .faq-item__body {
  animation: faqBodyIn .32s var(--ease) both;
}

@keyframes faqBodyIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.page-faq .faq-item__answer {
  margin: 0;
  font-size: .92rem;
  line-height: 1.95;
  color: rgba(242, 244, 255, .9);
}

.page-faq .faq-item__lead {
  margin-right: .15em;
  font-family: var(--font-mono);
  font-size: .9em;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--face);
}

.page-faq .faq-item__rel {
  margin: .7rem 0 0;
  font-size: .82rem;
  line-height: 1.7;
  color: var(--graphite);
}

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

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

/* ---------- 联系客服准备 ---------- */
.page-faq .faq-prep {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.4rem;
  padding: 1.3rem;
  border: 2px solid var(--faq-wine-line);
  background: linear-gradient(158deg, var(--faq-wine-soft) 0%, rgba(20, 22, 31, .95) 62%);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-prep__media {
  margin: 0;
}

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

.page-faq .faq-prep__intro {
  margin: 0 0 1rem;
  font-size: .95rem;
  line-height: 1.85;
  color: var(--fog);
}

.page-faq .faq-prep__list {
  display: grid;
  gap: .6rem;
  margin: 0 0 1.25rem;
  padding: 0;
  list-style: none;
}

.page-faq .faq-prep__list li {
  display: flex;
  gap: .7rem;
  align-items: flex-start;
  font-size: .91rem;
  line-height: 1.75;
  color: var(--fog);
}

.page-faq .faq-prep__list li::before {
  content: "";
  flex: none;
  width: .5rem;
  height: .5rem;
  margin-top: .58rem;
  background: var(--lime);
  box-shadow: 0 0 0 3px rgba(79, 240, 138, .16);
}

.page-faq .faq-prep__channels {
  display: grid;
  gap: .85rem;
  margin: 0;
  padding-top: 1.1rem;
  border-top: 1px solid var(--faq-line-strong);
}

.page-faq .faq-prep__channel {
  display: grid;
  gap: .18rem;
}

.page-faq .faq-prep__channel dt {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .18em;
  color: var(--amber);
  text-transform: uppercase;
}

.page-faq .faq-prep__channel dd {
  margin: 0;
  font-size: .91rem;
  line-height: 1.8;
  color: var(--fog);
}

.page-faq .faq-prep__more {
  margin: 1.15rem 0 0;
  font-size: .88rem;
}

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

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

/* ---------- 还有别的问题 ---------- */
.page-faq .faq-more {
  margin-top: 2.6rem;
  padding-top: 1.75rem;
  border-top: 2px solid var(--faq-line);
}

.page-faq .faq-more__title {
  margin: 0 0 .85rem;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 5vw, 1.7rem);
  line-height: 1.25;
  color: var(--fog);
}

.page-faq .faq-more__text {
  max-width: 40rem;
  margin: 0 0 .85rem;
  font-size: .93rem;
  line-height: 1.9;
  color: var(--graphite);
}

.page-faq .faq-more__mail {
  color: var(--fog);
  font-size: .95em;
  word-break: break-all;
}

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

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

.page-faq .faq-more__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  margin-top: 1.2rem;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: center;
    gap: 2.2rem;
  }

  .page-faq .faq-list--duo {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem 1.4rem;
  }

  .page-faq .faq-list--duo > li:nth-child(odd) {
    transform: translateY(-2px);
  }

  .page-faq .faq-list--duo > li:nth-child(even) {
    transform: translateY(10px);
  }

  .page-faq .faq-prep {
    grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr);
    align-items: start;
    gap: 1.75rem;
    padding: 1.7rem;
  }

  .page-faq .faq-prep__channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem 1.4rem;
  }

  .page-faq .faq-group__note {
    flex: 1 1 auto;
    max-width: 26rem;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1040px) {
  .page-faq .faq-hero {
    padding: 2rem 0 3.5rem;
  }

  .page-faq .faq-hero__title {
    font-size: clamp(2.5rem, 4.2vw, 3.7rem);
  }

  .page-faq .faq-group {
    padding-top: 3rem;
  }

  .page-faq .faq-item__summary {
    padding: 1.15rem 1.25rem;
    font-size: 1rem;
  }

  .page-faq .faq-item__body {
    padding: 1.05rem 1.25rem 1.3rem 2.85rem;
  }

  .page-faq .faq-jump__link {
    font-size: .88rem;
    padding: .55rem 1.05rem;
  }
}

@media (min-width: 1280px) {
  .page-faq .faq-list--duo {
    gap: 1.15rem 1.65rem;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-hero__title {
    transform: none;
  }

  .page-faq .faq-list--duo > li {
    transform: none;
  }

  .page-faq .faq-item[open] .faq-item__body {
    animation: none;
  }

  .page-faq .faq-jump__link,
  .page-faq .faq-item__icon::after,
  .page-faq .faq-item__body::before,
  .page-faq .faq-group__title::after {
    transition: none;
  }
}