.page-faq {
  --faq-gold-line: rgba(212, 175, 55, .32);
  --faq-soft-line: rgba(143, 163, 184, .22);
  --faq-shadow: 0 18px 48px rgba(3, 7, 15, .55);
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  padding: 20px 0 2px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 5vw, 64px);
}

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

.page-faq h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.85rem, 4.6vw, 3.35rem);
  line-height: 1.3;
  letter-spacing: .01em;
  margin: 14px 0 0;
  color: var(--c-ivory);
  max-width: 17em;
}

.page-faq .faq-hero__lead .lede {
  margin-top: 20px;
  color: var(--c-slate);
  max-width: 42em;
}

/* 概览面板 */
.page-faq .faq-hero__panel {
  position: relative;
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid var(--faq-gold-line);
  background:
    radial-gradient(circle at 100% 0%, rgba(122, 77, 255, .20), transparent 58%),
    var(--c-midnight);
  box-shadow: var(--faq-shadow);
}

.page-faq .faq-hero__panel::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 2px;
  background: linear-gradient(180deg, var(--c-gold-hi), var(--c-purple) 68%, transparent);
}

.page-faq .faq-hero__panel-key {
  margin: 0 0 18px;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--c-gold);
}

.page-faq .faq-hero__stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .faq-hero__stats li {
  display: grid;
  grid-template-columns: minmax(0, 6.8rem) minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--faq-soft-line);
}

.page-faq .faq-hero__stats li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-hero__num {
  font-size: clamp(1.05rem, 2.2vw, 1.4rem);
  line-height: 1.2;
  color: var(--c-gold-hi);
  letter-spacing: .02em;
}

.page-faq .faq-hero__txt {
  color: var(--c-slate);
  font-size: 14px;
  line-height: 1.65;
}

/* 关键词定位栏 */
.page-faq .faq-search {
  margin-top: clamp(24px, 3.4vw, 34px);
  display: grid;
  gap: 8px;
}

.page-faq .faq-search__label {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--c-gold);
}

.page-faq .faq-search__input {
  width: 100%;
  box-sizing: border-box;
  background: rgba(3, 7, 15, .6);
  border: 1px solid var(--faq-gold-line);
  border-radius: 0;
  color: var(--c-ivory);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.4;
  padding: 15px 16px;
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
}

.page-faq .faq-search__input::placeholder {
  color: var(--c-slate);
}

.page-faq .faq-search__input:focus {
  outline: none;
  border-color: var(--c-gold-hi);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, .18);
}

.page-faq .faq-search__hint {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-slate);
}

/* ---------- 分类索引 ---------- */
.page-faq .faq-index {
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  border-top: 1px solid var(--faq-gold-line);
}

.page-faq .faq-index__row {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 6px 20px;
  align-items: baseline;
  padding: 18px 6px;
  border-bottom: 1px solid var(--faq-soft-line);
  transition: background-color .3s var(--ease);
}

.page-faq .faq-index__row::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--c-gold-hi), var(--c-purple));
  transform: scaleY(0);
  transform-origin: top;
  transition: transform .35s var(--ease);
}

.page-faq .faq-index__row:hover {
  background: rgba(14, 42, 77, .55);
}

.page-faq .faq-index__row:hover::before {
  transform: scaleY(1);
}

.page-faq .faq-index__num {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--c-gold);
}

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

.page-faq .faq-index__name {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-size: 1.12rem;
  line-height: 1.5;
  color: var(--c-ivory);
}

.page-faq .faq-index__desc {
  margin: 0;
  color: var(--c-slate);
  font-size: 15px;
  line-height: 1.8;
  max-width: 46em;
}

.page-faq .faq-index__count {
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--c-jade);
  white-space: nowrap;
}

.page-faq .faq-cats__figure {
  margin: clamp(30px, 4.4vw, 52px) 0 0;
}

/* ---------- 登录排查 ---------- */
.page-faq .faq-login__grid {
  margin-top: clamp(26px, 4vw, 42px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.page-faq .faq-steps::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 24px;
  bottom: 24px;
  width: 1px;
  background: linear-gradient(180deg, var(--c-gold), rgba(122, 77, 255, .5) 62%, transparent);
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 4px 20px;
  padding: 18px 0;
}

.page-faq .faq-step__num {
  grid-row: 1 / span 2;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  position: relative;
  z-index: 1;
  background: var(--c-black);
  border: 1px solid var(--c-gold);
  color: var(--c-gold-hi);
  font-size: 12px;
  letter-spacing: .04em;
}

.page-faq .faq-step h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 1.08rem;
  line-height: 1.55;
  color: var(--c-ivory);
}

.page-faq .faq-step p {
  margin: 0;
  color: var(--c-slate);
  font-size: 15.5px;
  line-height: 1.85;
  max-width: 44em;
}

.page-faq .faq-login__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 20px;
  margin-top: clamp(26px, 4vw, 40px);
  padding-top: 26px;
  border-top: 1px solid var(--faq-soft-line);
}

/* ---------- 访问与网络 ---------- */
.page-faq .faq-net {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(258px, 1fr));
  gap: 1px;
  margin-top: clamp(26px, 4vw, 42px);
  background: var(--faq-soft-line);
  border: 1px solid var(--faq-soft-line);
}

.page-faq .faq-net__card {
  background: var(--c-deep);
  padding: clamp(22px, 3vw, 30px);
  min-width: 0;
}

.page-faq .faq-net__card h3 {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-size: 1.1rem;
  line-height: 1.5;
  color: var(--c-ivory);
}

.page-faq .faq-net__card p {
  margin: 0;
  color: var(--c-slate);
  font-size: 15.5px;
  line-height: 1.85;
}

.page-faq .faq-net__card p.faq-net__num {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .24em;
  color: var(--c-purple);
}

.page-faq .faq-net__card a {
  color: var(--c-gold-hi);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-gold-line);
  transition: border-color .25s var(--ease);
}

.page-faq .faq-net__card a:hover,
.page-faq .faq-net__card a:focus-visible {
  border-bottom-color: var(--c-gold-hi);
}

/* ---------- 设备兼容折叠面板 ---------- */
.page-faq .faq-qa {
  margin-top: clamp(26px, 4vw, 42px);
  border-top: 1px solid var(--faq-gold-line);
}

.page-faq .faq-qa__item {
  position: relative;
  border-bottom: 1px solid var(--faq-soft-line);
  transition: padding-left .3s var(--ease), background-color .3s var(--ease);
}

.page-faq .faq-qa__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--c-gold);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform .35s var(--ease);
}

.page-faq .faq-qa__item[open] {
  padding-left: 20px;
  background: rgba(14, 42, 77, .38);
}

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

.page-faq .faq-qa__item summary {
  list-style: none;
  cursor: pointer;
  position: relative;
  padding: 18px 44px 18px 6px;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--c-ivory);
}

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

.page-faq .faq-qa__item summary::after {
  content: "+";
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--c-gold);
  transition: color .25s var(--ease);
}

.page-faq .faq-qa__item[open] summary::after {
  content: "\2013";
  color: var(--c-gold-hi);
}

.page-faq .faq-qa__item summary:focus-visible {
  outline: 2px solid var(--c-gold-hi);
  outline-offset: 2px;
}

.page-faq .faq-qa__panel {
  padding: 0 8px 22px 6px;
  max-width: 46em;
}

.page-faq .faq-qa__panel p {
  margin: 0 0 12px;
  color: var(--c-slate);
  font-size: 15.5px;
  line-height: 1.85;
}

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

.page-faq .faq-qa__panel a {
  color: var(--c-gold-hi);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-gold-line);
}

.page-faq .faq-qa__panel a:hover,
.page-faq .faq-qa__panel a:focus-visible {
  border-bottom-color: var(--c-gold-hi);
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-contact__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  margin-top: clamp(26px, 4vw, 42px);
}

.page-faq .faq-contact__card {
  padding: clamp(22px, 3vw, 32px);
  border: 1px solid var(--faq-gold-line);
  background: linear-gradient(152deg, rgba(14, 42, 77, .92), rgba(3, 7, 15, .88));
  min-width: 0;
}

.page-faq .faq-contact__label {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--c-gold);
}

.page-faq .faq-contact__mail {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: clamp(.95rem, 2.1vw, 1.3rem);
  line-height: 1.45;
  color: var(--c-gold-hi);
  word-break: break-all;
}

.page-faq .faq-contact__meta {
  margin: 0;
  color: var(--c-slate);
  font-size: 14.5px;
  line-height: 1.8;
}

.page-faq .faq-contact__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-contact__list li {
  position: relative;
  padding-left: 22px;
  color: var(--c-slate);
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .faq-contact__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 9px;
  height: 1px;
  background: var(--c-jade);
}

.page-faq .faq-contact__more {
  margin: clamp(24px, 3.4vw, 34px) 0 0;
  max-width: 48em;
  color: var(--c-slate);
  font-size: 15.5px;
  line-height: 1.9;
}

.page-faq .faq-contact__more a {
  color: var(--c-gold-hi);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-gold-line);
  transition: border-color .25s var(--ease);
}

.page-faq .faq-contact__more a:hover,
.page-faq .faq-contact__more a:focus-visible {
  border-bottom-color: var(--c-gold-hi);
}

/* ---------- 响应式 ---------- */
@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
    align-items: end;
  }

  .page-faq .faq-login__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    align-items: start;
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

@media (max-width: 620px) {
  .page-faq .faq-index__row {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .page-faq .faq-index__count {
    grid-column: 2;
    justify-self: start;
    padding-top: 2px;
  }

  .page-faq .faq-qa__item[open] {
    padding-left: 14px;
  }
}

@media (max-width: 430px) {
  .page-faq .faq-hero__stats li {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__row,
  .page-faq .faq-index__row::before,
  .page-faq .faq-qa__item,
  .page-faq .faq-qa__item::before,
  .page-faq .faq-search__input {
    transition: none;
  }
}