.page-faq {
  --faq-accent-access: var(--gold-500);
  --faq-accent-export: var(--cinnabar-500);
  --faq-accent-archive: var(--slate-400);
  --faq-accent-screen: var(--indigo-700);
  --faq-accent-help: var(--gold-500);
  --faq-rule: var(--line-500);
  background: var(--ink-900);
}

/* ============ 首屏 ============ */
.page-faq .faq-hero {
  position: relative;
  background:
    radial-gradient(120% 90% at 88% 6%, rgba(201, 162, 39, .16), transparent 58%),
    radial-gradient(90% 80% at 4% 96%, rgba(27, 42, 74, .5), transparent 62%),
    linear-gradient(180deg, var(--ink-900) 0%, var(--ink-850) 100%);
  border-bottom: 2px solid var(--faq-rule);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(31, 90, 76, .3) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(31, 90, 76, .3) 1px, transparent 1px);
  background-size: 72px 72px;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: min(46%, 560px);
  height: 6px;
  background: linear-gradient(90deg, rgba(201, 162, 39, 0) 0%, var(--gold-500) 62%, var(--cinnabar-500) 100%);
  pointer-events: none;
}

.page-faq .faq-hero__wrap {
  position: relative;
  z-index: 1;
  padding-block: clamp(20px, 3.4vw, 34px) clamp(46px, 7vw, 84px);
}

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-faq .faq-hero__eyebrow {
  color: var(--gold-300);
}

.page-faq .faq-hero__title {
  max-width: 20ch;
  margin: 10px 0 0;
  color: var(--paper-100);
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.12;
}

.page-faq .faq-hero__lead {
  max-width: 62ch;
  margin: 18px 0 0;
  color: var(--paper-dim);
  font-size: clamp(15px, 1.15vw, 17px);
  line-height: 1.8;
}

.page-faq .faq-hero__stage {
  display: grid;
  gap: 20px;
  margin-top: clamp(26px, 4vw, 42px);
}

.page-faq .faq-hero__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--ink-700);
  border: 2px solid var(--gold-500);
  box-shadow: var(--hard-2);
  aspect-ratio: 2 / 1;
}

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

.page-faq .faq-hero__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 22px 14px 10px;
  color: var(--paper-100);
  background: linear-gradient(180deg, rgba(10, 35, 31, 0) 0%, rgba(10, 35, 31, .88) 100%);
}

.page-faq .faq-hero__tools {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: clamp(18px, 2.4vw, 26px);
  background: rgba(10, 35, 31, .74);
  border: 2px solid var(--gold-500);
  box-shadow: var(--hard-gold);
}

.page-faq .faq-filter__label {
  display: block;
  margin-bottom: 10px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--gold-300);
}

.page-faq .faq-filter__input {
  display: block;
  width: 100%;
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--paper-100);
  background: var(--ink-900);
  border: 2px solid var(--faq-rule);
  border-radius: 0;
  transition: border-color .2s ease, box-shadow .2s ease;
}

.page-faq .faq-filter__input::placeholder {
  color: var(--paper-faint);
}

.page-faq .faq-filter__input:focus-visible {
  outline: none;
  border-color: var(--gold-500);
  box-shadow: 0 0 0 3px rgba(201, 162, 39, .28);
}

.page-faq .faq-jump {
  display: grid;
  gap: 8px;
  margin-top: auto;
}

.page-faq .faq-jump__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border: 1px solid var(--faq-rule);
  border-left: 5px solid var(--faq-rule);
  color: var(--paper-100);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.4;
  transition: transform .18s ease, background-color .18s ease, border-left-color .18s ease;
}

.page-faq .faq-jump__item[data-accent="access"] { border-left-color: var(--faq-accent-access); }
.page-faq .faq-jump__item[data-accent="export"] { border-left-color: var(--faq-accent-export); }
.page-faq .faq-jump__item[data-accent="archive"] { border-left-color: var(--faq-accent-archive); }
.page-faq .faq-jump__item[data-accent="screen"] { border-left-color: var(--faq-accent-screen); }
.page-faq .faq-jump__item[data-accent="help"] { border-left-color: var(--faq-accent-help); }

.page-faq .faq-jump__item:hover,
.page-faq .faq-jump__item:focus-visible {
  background: var(--ink-700);
  transform: translateX(4px);
}

.page-faq .faq-jump__num {
  flex: 0 0 auto;
  font-size: 12px;
  color: var(--gold-300);
}

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

/* ============ 问题分组 ============ */
.page-faq .faq-group {
  padding-block: clamp(44px, 6.4vw, 88px);
  border-bottom: 2px solid var(--faq-rule);
}

.page-faq .faq-group[data-group="access"] { --group-accent: var(--faq-accent-access); }
.page-faq .faq-group[data-group="export"] { --group-accent: var(--faq-accent-export); }
.page-faq .faq-group[data-group="archive"] { --group-accent: var(--faq-accent-archive); }
.page-faq .faq-group[data-group="screen"] { --group-accent: var(--faq-accent-screen); }
.page-faq .faq-group[data-group="help"] { --group-accent: var(--faq-accent-help); }

.page-faq .faq-group__head {
  display: flex;
  align-items: stretch;
  gap: clamp(14px, 2vw, 22px);
  padding-bottom: 20px;
  border-bottom: 2px solid var(--faq-rule);
  margin-bottom: 4px;
}

.page-faq .faq-group__bar {
  flex: 0 0 auto;
  width: 8px;
  min-height: 64px;
  background: var(--group-accent, var(--gold-500));
  box-shadow: 3px 3px 0 rgba(0, 0, 0, .35);
}

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

.page-faq .faq-group__eyebrow {
  color: var(--gold-300);
  margin: 0 0 8px;
}

.page-faq .faq-group__title {
  margin: 0;
  color: var(--paper-100);
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  font-size: clamp(24px, 3.4vw, 42px);
  line-height: 1.2;
}

.page-faq .faq-group__intro {
  max-width: 60ch;
  margin: 12px 0 0;
  color: var(--paper-faint);
  font-size: 15px;
  line-height: 1.75;
}

.page-faq .faq-group__list {
  display: grid;
  border-top: 2px solid var(--faq-rule);
}

/* ============ 单条问答 ============ */
.page-faq .faq-qa {
  position: relative;
  background: var(--ink-850);
  border-bottom: 2px solid var(--faq-rule);
  border-left: 6px solid var(--group-accent, var(--gold-500));
  animation: faq-drop .42s cubic-bezier(.22, .8, .35, 1) both;
  transition: background-color .22s ease, box-shadow .22s ease;
}

.page-faq .faq-qa:nth-child(2) { animation-delay: .05s; }
.page-faq .faq-qa:nth-child(3) { animation-delay: .1s; }
.page-faq .faq-qa:nth-child(4) { animation-delay: .15s; }

.page-faq .faq-qa:hover {
  background: var(--ink-700);
}

.page-faq .faq-qa[data-open] {
  background: var(--ink-700);
  box-shadow: inset 0 0 0 1px rgba(201, 162, 39, .28);
}

@keyframes faq-drop {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.page-faq .faq-qa__trigger {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline;
  gap: 12px;
  width: 100%;
  padding: clamp(16px, 2.2vw, 22px) clamp(14px, 2vw, 22px);
  background: none;
  border: 0;
  text-align: left;
  cursor: pointer;
  color: var(--paper-100);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(16px, 1.4vw, 20px);
  line-height: 1.55;
  letter-spacing: -0.01em;
}

.page-faq .faq-qa__trigger:focus-visible {
  outline: 2px solid var(--gold-300);
  outline-offset: -4px;
}

.page-faq .faq-qa__num {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--group-accent, var(--gold-500));
}

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

.page-faq .faq-qa__mark {
  display: block;
  width: 11px;
  height: 11px;
  margin-top: 6px;
  border-right: 2px solid var(--gold-300);
  border-bottom: 2px solid var(--gold-300);
  transform: rotate(45deg);
  transition: transform .26s ease, border-color .26s ease;
}

.page-faq .faq-qa[data-open] .faq-qa__mark {
  transform: rotate(-135deg);
  border-color: var(--cinnabar-500);
}

.page-faq .faq-qa__inner {
  padding: 0 clamp(14px, 2vw, 22px) clamp(18px, 2.4vw, 24px);
  color: var(--paper-dim);
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.8;
}

.page-faq .faq-qa__inner p {
  margin: 0;
}

.page-faq .faq-qa__inner p + p {
  margin-top: 10px;
}

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

.page-faq .faq-qa__inner a:hover,
.page-faq .faq-qa__inner a:focus-visible {
  color: var(--paper-100);
}

/* 步骤编号小图 */
.page-faq .faq-figure {
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 14px;
  background: var(--ink-850);
  border: 2px solid var(--faq-rule);
  box-shadow: var(--hard-1);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-500);
}

.page-faq .faq-figure__caption {
  display: block;
  margin-top: 12px;
  color: var(--slate-200);
}

/* ============ 纸白翻转区 ============ */
.page-faq .faq-group--paper {
  background: var(--paper-100);
  color: var(--ink-900);
  border-top: 4px solid var(--gold-500);
  border-bottom: 0;
}

.page-faq .faq-group--paper .faq-group__head {
  border-bottom-color: rgba(10, 35, 31, .28);
}

.page-faq .faq-group--paper .faq-group__eyebrow {
  color: var(--cinnabar-500);
}

.page-faq .faq-group--paper .faq-group__title {
  color: var(--ink-900);
}

.page-faq .faq-group--paper .faq-group__intro {
  color: rgba(10, 35, 31, .68);
}

.page-faq .faq-group--paper .faq-group__list {
  border-top-color: rgba(10, 35, 31, .28);
}

.page-faq .faq-group--paper .faq-qa {
  background: var(--paper-100);
  border-bottom: 2px solid rgba(10, 35, 31, .2);
}

.page-faq .faq-group--paper .faq-qa:hover {
  background: #FFFFFF;
}

.page-faq .faq-group--paper .faq-qa[data-open] {
  background: #FFFFFF;
  box-shadow: inset 0 0 0 1px rgba(10, 35, 31, .16);
}

.page-faq .faq-group--paper .faq-qa__trigger {
  color: var(--ink-900);
}

.page-faq .faq-group--paper .faq-qa__num {
  color: var(--cinnabar-500);
}

.page-faq .faq-group--paper .faq-qa__mark {
  border-color: var(--ink-900);
}

.page-faq .faq-group--paper .faq-qa[data-open] .faq-qa__mark {
  border-color: var(--cinnabar-500);
}

.page-faq .faq-group--paper .faq-qa__inner {
  color: rgba(10, 35, 31, .84);
}

.page-faq .faq-group--paper .faq-qa__inner a {
  color: var(--cinnabar-600);
}

.page-faq .faq-group--paper .faq-qa__inner a:hover,
.page-faq .faq-group--paper .faq-qa__inner a:focus-visible {
  color: var(--ink-900);
}

.page-faq .faq-contact {
  display: grid;
  gap: 10px;
  margin-bottom: 14px;
  padding: 14px 16px;
  background: rgba(10, 35, 31, .05);
  border-left: 4px solid var(--gold-500);
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  align-items: baseline;
}

.page-faq .faq-contact__key {
  flex: 0 0 auto;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--cinnabar-500);
}

.page-faq .faq-contact__val {
  min-width: 0;
  word-break: break-word;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--ink-900);
}

.page-faq .faq-outro {
  margin-top: clamp(26px, 4vw, 40px);
  padding: clamp(18px, 2.6vw, 26px);
  background: var(--ink-900);
  border-left: 6px solid var(--gold-500);
  box-shadow: var(--hard-1);
}

.page-faq .faq-outro__text {
  margin: 0;
  color: var(--paper-dim);
  font-size: 15px;
  line-height: 1.75;
}

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

.page-faq .faq-outro a:hover,
.page-faq .faq-outro a:focus-visible {
  color: var(--paper-100);
}

/* ============ 响应式 ============ */
@media (min-width: 760px) {
  .page-faq .faq-group__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-qa:nth-child(odd) {
    border-right: 2px solid var(--faq-rule);
  }

  .page-faq .faq-group--paper .faq-qa:nth-child(odd) {
    border-right-color: rgba(10, 35, 31, .2);
  }

  .page-faq .faq-figure img {
    max-width: 640px;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-hero__stage {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: stretch;
  }

  .page-faq .faq-hero__media {
    aspect-ratio: auto;
    min-height: 340px;
  }

  .page-faq .faq-group__headtext {
    display: grid;
    grid-template-columns: minmax(0, auto) minmax(0, 1fr);
    align-items: end;
    gap: 0 26px;
  }

  .page-faq .faq-group__eyebrow {
    grid-column: 1 / -1;
  }

  .page-faq .faq-group__intro {
    margin-top: 0;
    padding-bottom: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-qa {
    animation: none;
  }

  .page-faq .faq-qa__mark,
  .page-faq .faq-jump__item {
    transition: none;
  }

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