.page-faq {
  --faq-rail-w: 236px;
  --faq-shadow: 0 20px 44px -28px rgba(212, 165, 55, .6);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 5.5vw, 54px) 0 clamp(24px, 4vw, 44px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  right: -8%;
  bottom: 10%;
  width: min(560px, 70%);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-strong) 45%, transparent);
  transform: rotate(-12deg);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: 4%;
  top: -80px;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(91, 46, 158, .32), transparent 68%);
  pointer-events: none;
}

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

.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
  margin-top: 22px;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 5.6vw, 56px);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-faq .faq-hero .lede {
  margin: 18px 0 0;
  max-width: 62ch;
}

.page-faq .faq-aside {
  border-left: 3px solid var(--gold);
  padding: 4px 0 4px 18px;
}

.page-faq .faq-aside-title {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-aside p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--metal);
}

.page-faq .faq-aside-link {
  display: inline-block;
  font-size: 14px;
  color: var(--gold-hi);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-aside-link:hover,
.page-faq .faq-aside-link:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

@media (min-width: 920px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: 56px;
    align-items: end;
  }
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  padding: clamp(28px, 5vw, 56px) 0 clamp(44px, 7vw, 88px);
}

@media (min-width: 980px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 60px;
  }
}

/* ---------- 左侧索引栏 ---------- */
.page-faq .faq-rail {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 6px;
  padding: 0 0 10px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-rail .spy-link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  font-size: 13.5px;
  line-height: 1.4;
  color: var(--metal);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color .2s var(--ease), background .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .faq-rail .spy-link:hover,
.page-faq .faq-rail .spy-link:focus-visible {
  color: var(--gold-hi);
  background: rgba(212, 165, 55, .06);
}

.page-faq .faq-rail .spy-link[aria-current="true"] {
  color: var(--gold-hi);
  border-left-color: var(--gold);
  background: rgba(212, 165, 55, .09);
}

.page-faq .rail-idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--gold);
}

@media (min-width: 980px) {
  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    display: grid;
    gap: 2px;
    align-content: start;
    padding: 0;
    border-bottom: 0;
    border-left: 1px solid var(--line-soft);
  }

  .page-faq .faq-rail .spy-link {
    padding: 9px 14px;
  }
}

/* ---------- 区块骨架 ---------- */
.page-faq .faq-section {
  scroll-margin-top: calc(var(--header-h) + 24px);
  padding: clamp(28px, 4vw, 40px) 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-section:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-faq .faq-section .section-lead {
  max-width: 68ch;
}

/* ---------- 01 快速自查 ---------- */
.page-faq .quick-grid {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

@media (min-width: 680px) {
  .page-faq .quick-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .quick-card {
  position: relative;
  display: grid;
  gap: 8px;
  padding: 20px 20px 22px;
  background: linear-gradient(180deg, rgba(26, 22, 16, .92), rgba(16, 24, 39, .74));
  border: 1px solid var(--line);
  text-decoration: none;
  transition: transform .24s var(--ease), border-color .24s var(--ease), box-shadow .24s var(--ease);
}

.page-faq .quick-card::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold), rgba(212, 165, 55, 0));
  opacity: .5;
  transition: opacity .24s var(--ease);
}

.page-faq .quick-card:hover,
.page-faq .quick-card:focus-visible {
  transform: translateY(-6px);
  border-color: var(--line-strong);
  box-shadow: var(--faq-shadow);
}

.page-faq .quick-card:hover::before,
.page-faq .quick-card:focus-visible::before {
  opacity: 1;
}

.page-faq .quick-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .quick-q {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--paper);
}

.page-faq .quick-a {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--metal);
}

/* ---------- 02 手风琴问答 ---------- */
.page-faq .accordion {
  margin-top: 24px;
  border-top: 1px solid var(--line-soft);
}

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

.page-faq .accordion-heading {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-faq .accordion-trigger {
  width: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 8px 18px 16px;
  background: transparent;
  border: 0;
  border-left: 3px solid transparent;
  font-family: var(--font-body);
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: var(--paper);
  cursor: pointer;
  transition: color .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}

.page-faq .accordion-trigger:hover {
  color: var(--gold-hi);
  background: rgba(212, 165, 55, .05);
}

.page-faq .accordion-trigger[aria-expanded="true"] {
  color: var(--gold-hi);
  border-left-color: var(--gold);
  background: rgba(212, 165, 55, .07);
}

.page-faq .accordion-icon {
  flex: 0 0 auto;
  position: relative;
  width: 16px;
  height: 16px;
  margin-top: 4px;
  color: currentColor;
}

.page-faq .accordion-icon::before,
.page-faq .accordion-icon::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 7px;
  height: 2px;
  background: currentColor;
  transition: transform .24s var(--ease);
}

.page-faq .accordion-icon::after {
  transform: rotate(90deg);
}

.page-faq .accordion-trigger[aria-expanded="true"] .accordion-icon::after {
  transform: rotate(0deg);
}

.page-faq .accordion-panel {
  padding: 0 22px 20px 19px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--metal);
}

.page-faq .accordion-panel[hidden] {
  display: none;
}

.page-faq .accordion-panel p {
  margin: 0 0 10px;
}

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

/* ---------- 03 帮助文档目录 ---------- */
.page-faq .docs-grid {
  display: grid;
  gap: 26px;
  margin-top: 24px;
}

@media (min-width: 900px) {
  .page-faq .docs-grid {
    grid-template-columns: minmax(0, 330px) minmax(0, 1fr);
    gap: 40px;
    align-items: start;
  }
}

.page-faq .faq-docs-media {
  margin: 0;
}

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

.page-faq .doc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-soft);
}

.page-faq .doc-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 2px 12px;
  align-items: baseline;
  padding: 11px 12px 12px;
  border-bottom: 1px solid var(--line-soft);
  transition: background .2s var(--ease);
}

.page-faq .doc-item:hover {
  background: rgba(212, 165, 55, .05);
}

.page-faq .doc-num {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--gold);
}

.page-faq .doc-name {
  font-size: 15px;
  line-height: 1.55;
  color: var(--paper);
}

.page-faq .doc-note {
  grid-column: 2;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--metal);
}

.page-faq .doc-item--key {
  background: linear-gradient(90deg, rgba(242, 210, 122, .14), rgba(242, 210, 122, .02));
  border-left: 3px solid var(--gold-hi);
  padding-left: 14px;
}

.page-faq .doc-item--key .doc-name {
  color: var(--gold-hi);
  font-weight: 700;
}

.page-faq .doc-item--key .doc-note {
  color: rgba(242, 210, 122, .78);
}

/* ---------- 04 故障排查步骤 ---------- */
.page-faq .faq-trouble-media {
  margin: 24px 0 0;
}

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

.page-faq .step-list {
  position: relative;
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
}

.page-faq .step-list::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 16px;
  bottom: 16px;
  width: 1px;
  background: linear-gradient(180deg, var(--gold), rgba(212, 165, 55, .08));
}

.page-faq .step-item {
  position: relative;
  padding: 0 0 28px 40px;
}

.page-faq .step-item:last-child {
  padding-bottom: 0;
}

.page-faq .step-num {
  position: absolute;
  left: 0;
  top: 1px;
  width: 19px;
  height: 19px;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1;
  color: var(--ink);
  background: var(--gold);
}

.page-faq .step-title {
  margin: 0 0 6px;
  font-family: var(--font-body);
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

.page-faq .step-text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--metal);
}

.page-faq .step-time {
  display: inline-block;
  margin-top: 9px;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--cyan);
  border: 1px solid rgba(49, 213, 200, .35);
}

/* ---------- 05 安装与升级 ---------- */
.page-faq .fix-grid {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

@media (min-width: 760px) {
  .page-faq .fix-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .fix-item {
  padding: 18px 20px;
  background: rgba(16, 24, 39, .72);
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--royal);
}

.page-faq .fix-title {
  margin: 0 0 8px;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

.page-faq .fix-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--metal);
}

/* ---------- 06 人工通道 ---------- */
.page-faq .agent-panel {
  position: relative;
  margin-top: 24px;
  padding: clamp(22px, 3.5vw, 36px);
  display: grid;
  gap: 26px;
  border: 1px solid var(--royal);
  background:
    linear-gradient(135deg, rgba(91, 46, 158, .24), rgba(11, 11, 15, .92) 58%),
    var(--ink-3);
}

.page-faq .agent-panel::before {
  content: "";
  position: absolute;
  left: -1px;
  top: -1px;
  width: 76px;
  height: 3px;
  background: var(--royal);
}

@media (min-width: 880px) {
  .page-faq .agent-panel {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    gap: 46px;
    align-items: start;
  }
}

.page-faq .agent-title {
  margin: 14px 0 10px;
  font-family: var(--font-display);
  font-size: clamp(21px, 2.8vw, 29px);
  font-weight: 900;
  line-height: 1.25;
  color: var(--paper);
}

.page-faq .agent-text {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.78;
  color: var(--metal);
}

.page-faq .agent-list {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .agent-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--metal);
}

.page-faq .agent-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 1px;
  background: var(--gold);
}

.page-faq .agent-contact {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .agent-contact .contact-row {
  display: grid;
  gap: 4px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .agent-contact .contact-key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .agent-contact .contact-value {
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-faq .agent-contact .contact-value--mono {
  font-family: var(--font-mono);
  letter-spacing: .01em;
}

.page-faq .agent-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--metal);
}

.page-faq .agent-note a {
  color: var(--gold-hi);
  text-decoration: underline;
  text-underline-offset: 3px;
}