.page-faq {
  --faq-line: rgba(126, 146, 168, .34);
  --faq-line-strong: rgba(126, 146, 168, .58);
  display: block;
  background: var(--ink-950);
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 40px) 0 clamp(36px, 6vw, 68px);
  border-bottom: 3px solid var(--black);
  background:
    repeating-linear-gradient(90deg, rgba(126, 146, 168, .13) 0 1px, transparent 1px 88px),
    radial-gradient(circle at 86% 2%, rgba(184, 255, 61, .18), transparent 58%),
    linear-gradient(165deg, var(--ink-900) 0%, var(--ink-950) 76%);
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(18px, 3vw, 32px);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  min-width: 0;
}

@media (min-width: 940px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: end;
  }
}

.page-faq .faq-h1 {
  margin: 0 0 16px;
  font-family: var(--font-head);
  font-size: clamp(2rem, 5.2vw, 3.7rem);
  line-height: 1.04;
  letter-spacing: -.015em;
  color: var(--paper);
}

.page-faq .faq-h1-accent {
  color: var(--neon-500);
}

.page-faq .faq-hero-copy .lede {
  max-width: 58ch;
  margin: 0 0 24px;
  color: rgba(245, 247, 242, .82);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero-figure {
  position: relative;
  margin: 0;
  aspect-ratio: 5 / 3;
  overflow: hidden;
  border: 2px solid var(--neon-500);
  background: var(--ink-700);
  box-shadow: 8px 8px 0 rgba(7, 11, 16, .85);
}

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

.page-faq .faq-hero-figure .media-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 10px 12px;
  border-top: 1px solid rgba(184, 255, 61, .45);
  background: rgba(5, 13, 24, .84);
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .02em;
  line-height: 1.5;
  color: var(--paper);
}

/* ---------- 分类磁贴 ---------- */
.page-faq .faq-tiles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

@media (max-width: 400px) {
  .page-faq .faq-tiles {
    grid-template-columns: 1fr;
  }
}

.page-faq .faq-tile {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 156px;
  padding: 18px;
  border: 2px solid var(--faq-line);
  background: linear-gradient(160deg, var(--ink-900), var(--ink-950));
  color: var(--paper);
  text-decoration: none;
  box-shadow: 5px 5px 0 rgba(7, 11, 16, .9);
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.page-faq .faq-tile:hover,
.page-faq .faq-tile:focus-visible {
  transform: translate(-2px, -2px);
  border-color: var(--neon-500);
  box-shadow: 7px 7px 0 rgba(184, 255, 61, .35);
}

.page-faq .faq-tile-num {
  font-size: .74rem;
  letter-spacing: .16em;
  color: var(--neon-500);
}

.page-faq .faq-tile-title {
  font-family: var(--font-head);
  font-size: 1.22rem;
  font-weight: 700;
  line-height: 1.25;
}

.page-faq .faq-tile-desc {
  font-size: .88rem;
  line-height: 1.62;
  color: rgba(245, 247, 242, .72);
}

.page-faq .faq-tile-go {
  margin-top: auto;
  font-size: .74rem;
  letter-spacing: .14em;
  color: var(--neon-300);
}

/* ---------- 快速上手 ---------- */
.page-faq .faq-quickstart .section-head {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.page-faq .faq-step {
  padding: 16px 16px 18px;
  border: 2px solid var(--black);
  background: #fff;
  box-shadow: 4px 4px 0 rgba(7, 11, 16, .16);
}

.page-faq .faq-step-num {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  margin-bottom: 10px;
  border: 2px solid var(--black);
  background: var(--neon-500);
  color: var(--black);
  font-size: .8rem;
  font-weight: 700;
}

.page-faq .faq-step .h3 {
  margin: 0 0 6px;
  font-size: 1.04rem;
  line-height: 1.32;
  color: var(--black);
}

.page-faq .faq-step p {
  margin: 0;
  font-size: .93rem;
  line-height: 1.68;
  color: rgba(7, 11, 16, .78);
}

.page-faq .faq-steps-note {
  margin: clamp(18px, 3vw, 26px) 0 0;
  font-size: .95rem;
  line-height: 1.7;
  color: rgba(7, 11, 16, .78);
}

.page-faq .faq-link {
  color: var(--ink-700);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

/* ---------- 问答主体 ---------- */
.page-faq .faq-main {
  padding-top: clamp(48px, 7vw, 88px);
  padding-bottom: clamp(48px, 7vw, 88px);
  background:
    radial-gradient(circle at 8% 0%, rgba(18, 52, 90, .78), transparent 48%),
    var(--ink-950);
}

.page-faq .faq-main .section-head {
  margin-bottom: clamp(22px, 3.4vw, 36px);
}

.page-faq .faq-main-grid {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  min-width: 0;
  grid-template-columns: 1fr;
}

@media (min-width: 960px) {
  .page-faq .faq-main-grid {
    grid-template-columns: 236px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
    align-self: start;
  }
}

.page-faq .faq-index-title {
  margin: 0 0 12px;
  font-size: .72rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--neon-500);
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-faq .faq-index-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 12px;
  border-left: 3px solid transparent;
  background: rgba(18, 52, 90, .42);
  color: rgba(245, 247, 242, .82);
  font-size: .9rem;
  line-height: 1.5;
  text-decoration: none;
  transition: border-color .16s ease, background-color .16s ease, color .16s ease;
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  border-left-color: var(--neon-500);
  background: rgba(18, 52, 90, .88);
  color: var(--paper);
}

.page-faq .faq-index-link .mono {
  font-size: .72rem;
  color: var(--neon-500);
}

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

.page-faq .faq-group {
  scroll-margin-top: 104px;
  margin-bottom: clamp(28px, 4vw, 44px);
}

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

.page-faq .faq-group-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 10px;
  margin-bottom: 14px;
  border-bottom: 2px solid var(--neon-500);
}

.page-faq .faq-group-num {
  font-size: .78rem;
  letter-spacing: .12em;
  color: var(--neon-500);
}

.page-faq .faq-group-head .h3 {
  margin: 0;
  font-size: clamp(1.15rem, 2vw, 1.45rem);
  line-height: 1.3;
  color: var(--paper);
}

.page-faq .faq-item {
  margin-bottom: 10px;
  border: 2px solid var(--faq-line);
  background: rgba(10, 26, 47, .92);
  transition: border-color .16s ease, box-shadow .16s ease;
}

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

.page-faq .faq-item[open] {
  border-color: var(--neon-500);
  box-shadow: 5px 5px 0 rgba(184, 255, 61, .16);
}

.page-faq .faq-q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
}

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

.page-faq .faq-q::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  line-height: 1.3;
  color: var(--neon-500);
  transition: transform .16s ease;
}

.page-faq .faq-item[open] > .faq-q::after {
  content: "−";
}

.page-faq .faq-a {
  margin: 0 16px 16px;
  padding-top: 14px;
  border-top: 1px solid rgba(126, 146, 168, .26);
  font-size: .95rem;
  line-height: 1.78;
  color: rgba(245, 247, 242, .82);
}

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

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

.page-faq .faq-a ul {
  margin: 0 0 10px;
  padding-left: 1.15em;
}

.page-faq .faq-a li {
  margin-bottom: 5px;
}

.page-faq .faq-a li::marker {
  color: var(--neon-500);
}

.page-faq .faq-a a {
  color: var(--neon-300);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-flow {
  margin: 16px 0 0;
  border: 2px solid var(--faq-line-strong);
  background: var(--ink-900);
  overflow: hidden;
}

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

.page-faq .faq-flow-caption {
  padding: 10px 14px;
  border-top: 1px solid rgba(184, 255, 61, .4);
  font-family: var(--font-mono);
  font-size: .74rem;
  line-height: 1.6;
  letter-spacing: .02em;
  color: rgba(245, 247, 242, .8);
}

/* ---------- 排查与客服 ---------- */
.page-faq .faq-help-grid {
  display: grid;
  gap: clamp(22px, 3.4vw, 38px);
  min-width: 0;
  grid-template-columns: 1fr;
}

@media (min-width: 940px) {
  .page-faq .faq-help-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: start;
  }
}

.page-faq .faq-help .section-head {
  margin-bottom: clamp(18px, 2.6vw, 26px);
}

.page-faq .faq-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-checklist li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 12px 14px;
  border: 2px solid var(--black);
  border-left: 6px solid var(--neon-500);
  background: #fff;
  font-size: .95rem;
  line-height: 1.65;
  color: var(--black);
}

.page-faq .faq-check-num {
  font-size: .78rem;
  letter-spacing: .1em;
  color: rgba(7, 11, 16, .55);
  padding-top: 2px;
}

.page-faq .faq-help-note {
  margin: 18px 0 0;
  font-size: .93rem;
  line-height: 1.7;
  color: rgba(7, 11, 16, .76);
}

.page-faq .faq-contact-card {
  padding: clamp(20px, 3vw, 30px);
  border: 2px solid var(--black);
  background: var(--ink-950);
  color: var(--paper);
  box-shadow: 8px 8px 0 var(--neon-500);
}

.page-faq .faq-contact-eyebrow {
  margin: 0 0 10px;
  font-size: .72rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--neon-500);
}

.page-faq .faq-contact-title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: clamp(1.25rem, 2.2vw, 1.6rem);
  line-height: 1.28;
  color: var(--paper);
}

.page-faq .faq-contact-text {
  margin: 0 0 16px;
  font-size: .93rem;
  line-height: 1.72;
  color: rgba(245, 247, 242, .8);
}

.page-faq .faq-contact-row {
  display: grid;
  gap: 3px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(126, 146, 168, .28);
}

.page-faq .faq-contact-key {
  font-size: .7rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--neon-500);
}

.page-faq .faq-contact-val {
  font-size: .97rem;
  line-height: 1.6;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-faq .faq-contact-note {
  margin: 14px 0 0;
  font-size: .82rem;
  line-height: 1.65;
  color: rgba(245, 247, 242, .68);
}

.page-faq .faq-contact-more {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: .78rem;
  line-height: 1.7;
  color: rgba(245, 247, 242, .7);
}

.page-faq .faq-link--light {
  color: var(--neon-300);
  font-weight: 500;
}

.page-faq .faq-link--light:hover,
.page-faq .faq-link--light:focus-visible {
  color: var(--neon-500);
}

/* ---------- 动效收敛 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-tile,
  .page-faq .faq-index-link,
  .page-faq .faq-item,
  .page-faq .faq-q::after {
    transition: none;
  }

  .page-faq .faq-tile:hover,
  .page-faq .faq-tile:focus-visible {
    transform: none;
  }
}