/* ===== 支持中心 / page-faq ===== */

.page-faq {
  --faq-accent: var(--c-data-blue);
}

/* ---------- 面包屑与首屏 ---------- */
.page-faq .breadcrumb {
  padding-block: 1.15rem .4rem;
}

.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(1.25rem, 3vw, 2rem) clamp(2.5rem, 6vw, 4rem);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -30% -12% auto -12%;
  height: 150%;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(58% 52% at 10% 16%, rgba(31, 111, 235, .16), transparent 68%),
    radial-gradient(46% 48% at 92% 6%, rgba(228, 87, 46, .12), transparent 70%),
    radial-gradient(70% 60% at 50% 112%, rgba(31, 107, 74, .13), transparent 72%);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(1.5rem, 3.5vw, 3rem);
  align-items: center;
}

.page-faq .faq-hero h1 {
  margin: .65rem 0 0;
  max-width: 20ch;
  font-family: var(--font-head);
  font-size: clamp(1.95rem, 5.2vw, 3.35rem);
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--c-home-deep);
}

.page-faq .faq-hero .lede {
  margin: 1.05rem 0 0;
  max-width: 44ch;
  color: var(--c-ink-soft);
}

.page-faq .faq-hero__stats {
  list-style: none;
  margin: 1.9rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .65rem;
}

.page-faq .faq-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: .22rem;
  padding: .72rem .82rem;
  border: 1px solid var(--c-line-soft);
  border-radius: var(--r-md);
  background: var(--c-card);
  box-shadow: var(--sh-1);
}

.page-faq .faq-hero__stats .stat-num {
  font-family: var(--font-mono);
  font-size: clamp(.96rem, 2.6vw, 1.18rem);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--c-home-deep);
  word-break: keep-all;
}

.page-faq .faq-hero__stats li > span:last-child {
  font-size: .78rem;
  line-height: 1.45;
  color: var(--c-ink-mute);
}

.page-faq .faq-hero__figure {
  margin: 0;
  border-radius: var(--r-xl);
  overflow: hidden;
  background: var(--c-card);
  box-shadow: var(--sh-2);
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .faq-hero__figure::after {
  content: "";
  display: block;
  height: 5px;
  background: linear-gradient(90deg, var(--c-home-deep), var(--c-data-blue) 55%, var(--c-away-flame));
}

@media (min-width: 620px) {
  .page-faq .faq-hero__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(2rem, 4vw, 3.5rem);
  }
}

/* ---------- 主体双栏 ---------- */
.page-faq .faq-body {
  padding-block: clamp(1rem, 2.5vw, 2rem) var(--section-y);
}

.page-faq .faq-body__grid {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.page-faq .faq-group,
.page-faq .faq-contact {
  scroll-margin-top: 6.5rem;
}

@media (min-width: 1000px) {
  .page-faq .faq-body__grid {
    grid-template-columns: minmax(0, 258px) minmax(0, 1fr);
    align-items: start;
    gap: clamp(2rem, 4vw, 3.5rem);
  }
}

/* 索引栏 */
.page-faq .faq-side {
  padding: clamp(.85rem, 2vw, 1.15rem);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  background: var(--c-card);
}

@media (min-width: 1000px) {
  .page-faq .faq-side {
    position: sticky;
    top: 7rem;
  }
}

.page-faq .faq-side__title {
  margin: 0 0 .7rem;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--c-ink-mute);
}

.page-faq .faq-index {
  list-style: none;
  margin: 0;
  padding: 0 0 .2rem;
  display: flex;
  gap: .5rem;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

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

.page-faq .faq-index a {
  display: block;
  padding: .5rem .8rem;
  border: 1px solid var(--c-line-soft);
  border-radius: var(--r-sm);
  background: var(--c-paper);
  color: var(--c-ink-soft);
  font-size: .86rem;
  text-decoration: none;
  white-space: nowrap;
  transition: background-color .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
}

.page-faq .faq-index a:hover {
  border-color: var(--c-home-leaf);
  background: rgba(31, 107, 74, .1);
  color: var(--c-home-deep);
  transform: translateX(2px);
}

.page-faq .faq-index a:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

@media (min-width: 1000px) {
  .page-faq .faq-index {
    flex-direction: column;
    gap: .12rem;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index li {
    flex: 1 1 auto;
  }

  .page-faq .faq-index a {
    border-color: transparent;
    border-left: 2px solid var(--c-line);
    border-radius: 0 var(--r-xs) var(--r-xs) 0;
    background: transparent;
    padding: .52rem .7rem .52rem .8rem;
    font-size: .9rem;
    white-space: normal;
    line-height: 1.5;
  }
}

/* 筛选条 */
.page-faq .filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem;
  margin-bottom: clamp(1.5rem, 3vw, 2.25rem);
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--c-line);
}

.page-faq .filter-btn {
  padding: .42rem .92rem;
  border: 1px solid var(--c-line);
  border-radius: 999px;
  background: var(--c-card);
  color: var(--c-ink-soft);
  font-family: var(--font-body);
  font-size: .84rem;
  cursor: pointer;
  transition: background-color .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .filter-btn:hover {
  border-color: var(--c-data-blue);
  color: var(--c-data-blue);
}

.page-faq .filter-btn[aria-pressed="true"] {
  border-color: var(--c-home-deep);
  background: var(--c-home-deep);
  color: #FBF9F4;
}

.page-faq .filter-btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.page-faq .filter-status {
  margin: 0 0 0 auto;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .04em;
  color: var(--c-ink-mute);
}

/* ---------- 问题分组 ---------- */
.page-faq .faq-items {
  counter-reset: faq;
}

.page-faq .faq-group {
  margin-bottom: clamp(2rem, 4.5vw, 3.25rem);
}

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

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: .35rem;
  padding-bottom: .6rem;
  border-bottom: 2px solid var(--c-home-deep);
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(1.18rem, 2.4vw, 1.52rem);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--c-home-deep);
}

.page-faq .faq-group__meta {
  flex: none;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .12em;
  color: var(--c-stone);
}

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

.page-faq .faq-item > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: baseline;
  gap: .9rem;
  padding: 1rem .25rem;
  font-family: var(--font-head);
  font-size: clamp(.98rem, 1.6vw, 1.06rem);
  font-weight: 600;
  line-height: 1.55;
  color: var(--c-ink);
  transition: color .18s var(--ease);
}

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

.page-faq .faq-item > summary::before {
  content: counter(faq, decimal-leading-zero);
  flex: none;
  width: 1.9rem;
  font-family: var(--font-mono);
  font-size: .76rem;
  font-weight: 500;
  letter-spacing: .02em;
  color: var(--faq-accent);
}

.page-faq .faq-item > summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  line-height: 1;
  color: var(--c-stone);
  transition: color .18s var(--ease);
}

.page-faq .faq-item[open] > summary {
  color: var(--c-home-deep);
}

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

.page-faq .faq-item > summary:hover {
  color: var(--c-home-leaf);
}

.page-faq .faq-item > summary:focus-visible {
  outline: none;
  border-radius: var(--r-xs);
  box-shadow: var(--focus-ring);
}

.page-faq .faq-item__body {
  padding: 0 1rem 1.25rem 2.8rem;
  max-width: 68ch;
}

.page-faq .faq-item__body p {
  margin: 0 0 .7rem;
  font-size: .94rem;
  line-height: 1.78;
  color: var(--c-ink-soft);
}

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

.page-faq .faq-item__body strong {
  font-weight: 600;
  color: var(--c-home-deep);
}

.page-faq .faq-note {
  margin-top: .8rem;
  padding: .62rem .85rem;
  border-left: 3px solid var(--c-data-blue);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: rgba(31, 111, 235, .07);
  font-size: .86rem;
  line-height: 1.7;
  color: var(--c-ink-soft);
}

@media (max-width: 560px) {
  .page-faq .faq-item__body {
    padding-left: 1.15rem;
    padding-right: .25rem;
  }
}

/* 导出步骤图 */
.page-faq .faq-figure {
  margin: 1.35rem 0 0;
  border: 1px solid var(--c-line-soft);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--c-card);
}

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

.page-faq .faq-figure figcaption {
  padding: .62rem .95rem;
  border-top: 1px solid var(--c-line-soft);
  font-family: var(--font-mono);
  font-size: .79rem;
  letter-spacing: .02em;
  color: var(--c-ink-mute);
}

/* ---------- 联系客服 ---------- */
.page-faq .faq-contact {
  padding-block: clamp(2rem, 5vw, 3.5rem);
}

.page-faq .faq-contact__panel {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(1.5rem, 4vw, 3rem);
  border-radius: var(--r-xl);
  background: var(--c-home-deep);
  color: #FBF9F4;
}

.page-faq .faq-contact__panel::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(251, 249, 244, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(251, 249, 244, .07) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: .75;
  pointer-events: none;
}

.page-faq .faq-contact__panel::after {
  content: "";
  position: absolute;
  inset: auto -12% -58% 42%;
  height: 130%;
  z-index: -1;
  background: radial-gradient(closest-side, rgba(228, 87, 46, .38), transparent 72%);
  transform: rotate(-8deg);
  pointer-events: none;
}

.page-faq .faq-contact__grid {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.75rem);
}

@media (min-width: 880px) {
  .page-faq .faq-contact__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }
}

.page-faq .faq-contact__title {
  margin: 0 0 .8rem;
  font-family: var(--font-head);
  font-size: clamp(1.36rem, 3vw, 2rem);
  line-height: 1.26;
  letter-spacing: -.01em;
  color: #FBF9F4;
}

.page-faq .faq-contact__lead {
  margin: 0;
  max-width: 38ch;
  font-size: .95rem;
  line-height: 1.78;
  color: rgba(251, 249, 244, .76);
}

.page-faq .faq-contact__list {
  list-style: none;
  margin: 0 0 1.4rem;
  padding: 0;
  display: grid;
}

.page-faq .faq-contact__item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .55rem .7rem;
  padding: .78rem .2rem;
  border-bottom: 1px solid var(--c-line-invert);
}

.page-faq .faq-contact__key {
  flex: none;
  width: 5.2rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  color: rgba(251, 249, 244, .62);
}

.page-faq .faq-contact__val {
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: .9rem;
  line-height: 1.5;
  color: #FBF9F4;
  word-break: break-word;
}

.page-faq .faq-contact__val--text {
  font-family: var(--font-body);
  font-size: .92rem;
}

.page-faq .copy-btn {
  flex: none;
  padding: .28rem .74rem;
  border: 1px solid rgba(251, 249, 244, .3);
  border-radius: 999px;
  background: transparent;
  color: rgba(251, 249, 244, .88);
  font-family: var(--font-body);
  font-size: .74rem;
  cursor: pointer;
  transition: background-color .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .copy-btn:hover {
  border-color: rgba(251, 249, 244, .55);
  background: rgba(251, 249, 244, .14);
}

.page-faq .copy-btn[data-copied] {
  border-color: var(--c-away-flame);
  background: var(--c-away-flame);
  color: #FBF9F4;
}

.page-faq .copy-btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring-invert);
}

.page-faq .faq-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.45rem;
}

.page-faq .faq-contact__actions .btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .62rem 1.2rem;
  border-radius: 999px;
  font-size: .88rem;
  text-decoration: none;
  transition: background-color .2s var(--ease), border-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .faq-contact__actions .btn--cta {
  border: 1px solid var(--c-away-flame);
  background: var(--c-away-flame);
  color: #FBF9F4;
}

.page-faq .faq-contact__actions .btn--cta:hover {
  border-color: var(--c-away-clay);
  background: var(--c-away-clay);
}

.page-faq .faq-contact__actions .btn--ghost {
  border: 1px solid rgba(251, 249, 244, .34);
  background: transparent;
  color: #FBF9F4;
}

.page-faq .faq-contact__actions .btn--ghost:hover {
  background: rgba(251, 249, 244, .14);
}

.page-faq .faq-contact__actions .btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring-invert);
}

.page-faq .faq-contact__aside {
  margin: 1.15rem 0 0;
  font-size: .82rem;
  line-height: 1.75;
  color: rgba(251, 249, 244, .66);
}

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

.page-faq .faq-contact__aside a:hover {
  color: #FBF9F4;
}