/* ============================================================
   帮助中心 /faq/  —  页面专属样式，全部限定在 .page-faq 内
   ============================================================ */

.page-faq {
  background: var(--ink-abyss);
  --faq-lift: rgba(233, 169, 59, 0.10);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 3.5vw, 40px) 0 clamp(40px, 5.5vw, 76px);
  border-bottom: 1px solid var(--line-dark);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(68% 58% at 82% 6%, rgba(70, 224, 212, 0.16), transparent 64%),
    radial-gradient(52% 64% at 6% 92%, rgba(233, 169, 59, 0.13), transparent 62%),
    repeating-linear-gradient(0deg, rgba(157, 175, 166, 0.09) 0 1px, transparent 1px 30px),
    repeating-linear-gradient(90deg, rgba(157, 175, 166, 0.09) 0 1px, transparent 1px 30px);
}

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

.page-faq .crumbs {
  margin: 0 0 clamp(24px, 3.4vw, 38px);
  font-size: 14px;
}

.page-faq .crumbs__item {
  color: var(--mist);
}

.page-faq .crumbs__item a {
  color: var(--mist);
  text-decoration: none;
  transition: color 160ms var(--ease);
}

.page-faq .crumbs__item a:hover {
  color: var(--amber);
}

.page-faq .crumbs__item[aria-current="page"] {
  color: var(--paper-warm);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
  align-items: end;
}

.page-faq .faq-hero__title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: clamp(36px, 6vw, 76px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--paper-warm);
}

.page-faq .faq-hero__lede {
  margin: clamp(16px, 2vw, 24px) 0 0;
  max-width: 46ch;
  color: var(--mist);
  font-size: 17px;
  line-height: 1.8;
}

.page-faq .faq-hero__side {
  position: relative;
  padding: 20px 22px 22px;
  border: 1px solid var(--line-amber);
  border-left: 3px solid var(--amber);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(20, 51, 43, 0.9), rgba(6, 17, 15, 0.9));
}

.page-faq .faq-hero__side-cap {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-faq .faq-hero__side-num {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(48px, 7vw, 76px);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-hero__side-unit {
  margin-left: 8px;
  font-size: 16px;
  font-weight: 500;
  color: var(--mist);
  letter-spacing: 0.02em;
}

.page-faq .faq-hero__side-note {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 三步步骤带 ---------- */
.page-faq .steps {
  list-style: none;
  margin: clamp(30px, 4.5vw, 52px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .steps__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  column-gap: 14px;
  row-gap: 4px;
  padding: 18px 20px;
  background: var(--pitch-900);
  color: var(--paper-warm);
  text-decoration: none;
  transition: background 160ms var(--ease), color 160ms var(--ease);
}

.page-faq .steps__link:hover,
.page-faq .steps__link:focus-visible {
  background: var(--pitch-700);
}

.page-faq .steps__no {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1.1;
  color: var(--amber);
}

.page-faq .steps__title {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.page-faq .steps__desc {
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 通用章节带 ---------- */
.page-faq .faq-band {
  --faq-fg: var(--paper-warm);
  --faq-mute: var(--mist);
  --faq-line: var(--line-dark);
  --faq-qa-bg: var(--pitch-900);
  --faq-qa-open: var(--pitch-700);
  --faq-mark: var(--amber);
  --faq-head: var(--amber);
  position: relative;
  overflow: hidden;
  padding: clamp(44px, 6vw, 88px) 0;
  color: var(--faq-fg);
  background: var(--ink-abyss);
}

.page-faq .faq-band:not(.faq-band--paper)::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(70% 48% at 92% 0%, rgba(70, 224, 212, 0.08), transparent 62%);
}

.page-faq .faq-band--paper {
  --faq-fg: var(--ink-text);
  --faq-mute: var(--paper-muted);
  --faq-line: var(--paper-line);
  --faq-qa-bg: rgba(255, 255, 255, 0.42);
  --faq-qa-open: #F7F1E2;
  --faq-mark: var(--amber-deep);
  --faq-head: var(--amber-deep);
  background: var(--paper-warm);
  color: var(--ink-text);
}

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

@media (min-width: 1024px) {
  .page-faq .faq-band--paper > .shell {
    padding-left: calc(var(--gutter) + 4%);
  }
}

/* ---------- 章节头 ---------- */
.page-faq .band-head {
  display: grid;
  gap: 6px 26px;
  padding-bottom: 16px;
  margin-bottom: clamp(24px, 3.6vw, 38px);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .band-head__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--faq-head);
}

.page-faq .band-head__title {
  margin: 2px 0 0;
  font-family: var(--font-display);
  font-size: clamp(25px, 3.3vw, 40px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  font-weight: 800;
  color: var(--faq-fg);
}

.page-faq .band-head__note {
  margin: 8px 0 0;
  max-width: 58ch;
  font-family: var(--font-serif);
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--faq-mute);
}

@media (min-width: 880px) {
  .page-faq .band-head {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .band-head__no {
    grid-row: 1 / span 2;
    font-size: 26px;
    padding-top: 6px;
  }
}

/* ---------- 章节主体布局 ---------- */
.page-faq .band-body {
  display: grid;
  gap: clamp(24px, 3.4vw, 40px);
}

@media (min-width: 1000px) {
  .page-faq .band-body {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .band-body > .faq-fig,
  .page-faq .band-body > .faq-clock,
  .page-faq .band-body > .faq-flow {
    position: sticky;
    top: 96px;
  }
}

/* ---------- 问答折叠 ---------- */
.page-faq .qa-stack {
  display: grid;
  gap: 10px;
}

.page-faq .qa {
  position: relative;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: var(--faq-qa-bg);
  transition: background 200ms var(--ease), border-color 200ms var(--ease);
}

.page-faq .qa[open] {
  background: var(--faq-qa-open);
  border-color: var(--faq-line);
}

.page-faq .qa[open]::before {
  content: "";
  position: absolute;
  left: -1px;
  top: -1px;
  bottom: -1px;
  width: 3px;
  background: var(--faq-mark);
  border-radius: var(--radius) 0 0 var(--radius);
}

.page-faq .qa__summary {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr) 1rem;
  column-gap: 14px;
  align-items: start;
  padding: 17px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__summary:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.page-faq .qa__no {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.15;
  color: var(--faq-mark);
  letter-spacing: -0.01em;
}

.page-faq .qa__q {
  font-size: 16.5px;
  line-height: 1.6;
  font-weight: 700;
  color: var(--faq-fg);
  letter-spacing: 0.005em;
}

.page-faq .qa__sign {
  position: relative;
  width: 14px;
  height: 14px;
  margin-top: 6px;
  color: var(--faq-mute);
  transition: color 200ms var(--ease);
}

.page-faq .qa__sign::before,
.page-faq .qa__sign::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  background: currentColor;
  transform: translateY(-50%);
  transition: transform 200ms var(--ease), opacity 200ms var(--ease);
}

.page-faq .qa__sign::after {
  transform: translateY(-50%) rotate(90deg);
}

.page-faq .qa[open] .qa__sign {
  color: var(--faq-mark);
}

.page-faq .qa[open] .qa__sign::after {
  transform: translateY(-50%) rotate(0deg);
  opacity: 0;
}

.page-faq .qa__body {
  padding: 0 18px 20px;
  border-top: 1px solid var(--faq-line);
  margin-top: 2px;
  padding-top: 14px;
}

.page-faq .qa__body p {
  margin: 0 0 10px;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--faq-mute);
}

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

.page-faq .qa__body a {
  color: var(--faq-mark);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
  transition: color 160ms var(--ease);
}

.page-faq .qa__body a:hover {
  color: var(--amber);
}

.page-faq .faq-band--paper .qa__body a:hover {
  color: var(--ink-text);
}

@media (min-width: 720px) {
  .page-faq .qa__summary {
    grid-template-columns: 3rem minmax(0, 1fr) 1.1rem;
    column-gap: 18px;
    padding: 20px 24px;
  }

  .page-faq .qa__no {
    font-size: 28px;
  }

  .page-faq .qa__q {
    font-size: 17.5px;
  }

  .page-faq .qa__body {
    padding: 16px 24px 24px;
  }
}

/* ---------- 配图 ---------- */
.page-faq .faq-fig {
  margin: 0;
}

.page-faq .faq-fig .media {
  aspect-ratio: 10 / 7;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-fig .media__img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-faq .faq-fig__cap {
  margin: 12px 0 0;
  font-family: var(--font-serif);
  font-size: 14px;
  line-height: 1.7;
  color: var(--faq-mute);
  border-left: 2px solid var(--faq-mark);
  padding-left: 12px;
}

/* ---------- 刷新节奏面板 ---------- */
.page-faq .faq-clock {
  padding: 20px 20px 22px;
  border: 1px solid var(--line-amber);
  border-top: 3px solid var(--amber);
  border-radius: var(--radius);
  background: var(--pitch-900);
}

.page-faq .faq-clock__cap {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--mist);
}

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

.page-faq .faq-clock__item {
  display: grid;
  gap: 3px;
  padding-left: 12px;
  border-left: 1px solid var(--line-dark);
}

.page-faq .faq-clock__key {
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0.01em;
}

.page-faq .faq-clock__val {
  font-size: 14px;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 显示调整三条 ---------- */
.page-faq .faq-fix {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-fix__item {
  position: relative;
  padding: 18px 0 18px 52px;
  border-top: 1px solid var(--line-dark);
}

.page-faq .faq-fix__item:last-child {
  border-bottom: 1px solid var(--line-dark);
}

.page-faq .faq-fix__no {
  position: absolute;
  left: 0;
  top: 18px;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--amber);
}

.page-faq .faq-fix__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper-warm);
}

.page-faq .faq-fix__text {
  margin: 0;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--mist);
}

@media (min-width: 860px) {
  .page-faq .faq-fix {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }

  .page-faq .faq-fix__item {
    padding: 22px 22px 22px 0;
    border-top: 3px solid var(--pitch-700);
    border-bottom: none;
  }

  .page-faq .faq-fix__item:last-child {
    border-bottom: none;
  }

  .page-faq .faq-fix__item + .faq-fix__item {
    padding-left: 24px;
    border-left: 1px solid var(--line-dark);
  }

  .page-faq .faq-fix__no {
    position: static;
    display: block;
    margin-bottom: 10px;
    font-size: 26px;
  }
}

/* ---------- 纠错流程 ---------- */
.page-faq .faq-flow {
  padding: 20px 20px 22px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.5);
}

.page-faq .faq-flow__cap {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--paper-muted);
}

.page-faq .faq-flow__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq .faq-flow__step {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: var(--paper-warm);
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--ink-text);
}

.page-faq .faq-flow__step .num {
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--amber-deep);
  color: var(--paper-warm);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
}

.page-faq .faq-flow__more {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper-muted);
}

.page-faq .faq-flow__more a {
  color: var(--amber-deep);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ---------- 收尾 ---------- */
.page-faq .faq-outro {
  position: relative;
  overflow: hidden;
  padding: clamp(44px, 6vw, 84px) 0;
  background: var(--pitch-900);
  border-top: 1px solid var(--line-dark);
}

.page-faq .faq-outro::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(60% 70% at 88% 20%, rgba(233, 169, 59, 0.14), transparent 62%),
    repeating-linear-gradient(90deg, rgba(157, 175, 166, 0.08) 0 1px, transparent 1px 34px);
}

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

.page-faq .faq-outro__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.2vw, 38px);
  line-height: 1.26;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper-warm);
}

.page-faq .faq-outro__text {
  margin: 14px 0 0;
  max-width: 54ch;
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-outro__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-faq .faq-outro__acts .btn {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.01em;
  transition: background 160ms var(--ease), color 160ms var(--ease), border-color 160ms var(--ease);
}

.page-faq .faq-outro__acts .btn--amber {
  background: var(--amber);
  color: var(--ink-abyss);
  border: 1px solid var(--amber);
}

.page-faq .faq-outro__acts .btn--amber:hover {
  background: var(--paper-warm);
  border-color: var(--paper-warm);
}

.page-faq .faq-outro__acts .btn--ghost {
  border: 1px solid var(--line-amber);
  color: var(--paper-warm);
  background: transparent;
}

.page-faq .faq-outro__acts .btn--ghost:hover {
  background: var(--pitch-700);
  border-color: var(--amber);
}

/* ---------- 焦点可见性 ---------- */
.page-faq a:focus-visible,
.page-faq summary:focus-visible,
.page-faq button:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .steps__link,
  .page-faq .qa,
  .page-faq .qa__sign,
  .page-faq .qa__sign::before,
  .page-faq .qa__sign::after,
  .page-faq .faq-outro__acts .btn,
  .page-faq .crumbs__item a,
  .page-faq .qa__body a {
    transition: none;
  }
}

/* ---------- 平板与桌面微调 ---------- */
@media (min-width: 620px) {
  .page-faq .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-fig .media {
    aspect-ratio: 10 / 7;
  }
}
<<<END>>>