.page-faq {
  --faq-gap: clamp(1rem, 2.6vw, 1.75rem);
  color: var(--bone);
  padding-bottom: clamp(2.5rem, 7vw, 5rem);
  overflow-wrap: break-word;
}

.page-faq .breadcrumb {
  padding-block: clamp(1rem, 2.5vw, 1.6rem) .3rem;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  display: grid;
  gap: clamp(1.4rem, 3.5vw, 2.4rem);
  padding-block: clamp(1rem, 2.5vw, 1.6rem) clamp(2rem, 5vw, 3.2rem);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 62%;
  background: radial-gradient(58% 78% at 22% 28%, rgba(43, 245, 210, .15), transparent 72%);
  pointer-events: none;
}

.page-faq .faq-hero-copy {
  position: relative;
}

.page-faq .faq-hero h1 {
  margin: .5rem 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(2rem, 6.2vw, 3.7rem);
  line-height: 1.03;
  letter-spacing: -.02em;
}

.page-faq .faq-hero-lead {
  margin: 1rem 0 0;
  max-width: 44ch;
  color: var(--fog);
  font-size: clamp(1rem, 1.6vw, 1.08rem);
  line-height: 1.72;
}

.page-faq .hero-jump {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 1.3rem;
}

.page-faq .hero-jump a {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .5rem .8rem;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--ink-800);
  color: var(--bone);
  font-size: .88rem;
  text-decoration: none;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-faq .hero-jump a:hover,
.page-faq .hero-jump a:focus-visible {
  border-color: var(--mint);
  color: var(--mint);
}

.page-faq .hero-jump .mono {
  font-size: .72rem;
  color: var(--mint);
}

.page-faq .faq-hero-media {
  border: 1px solid var(--line);
  border-radius: var(--cut);
  overflow: hidden;
  background: var(--ink-800);
}

.page-faq .faq-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
}

@media (min-width: 880px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    align-items: center;
    gap: clamp(2rem, 4vw, 3.2rem);
  }
}

/* ---------- 三类分流 ---------- */
.page-faq .faq-routes {
  padding-block: clamp(2rem, 5vw, 3.4rem) clamp(1.4rem, 3.6vw, 2.4rem);
}

.page-faq .routes-head {
  display: grid;
  gap: .4rem;
  margin-bottom: clamp(1rem, 2.5vw, 1.6rem);
}

.page-faq .routes-head .section-kicker,
.page-faq .qa-section-head .section-kicker {
  margin: 0;
}

.page-faq .route-strip {
  display: grid;
  gap: .85rem;
  grid-template-columns: 1fr;
}

.page-faq .route-card {
  position: relative;
  display: grid;
  gap: .4rem;
  padding: clamp(1rem, 2.4vw, 1.5rem);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: linear-gradient(180deg, rgba(20, 59, 49, .92), var(--ink-800));
  color: var(--bone);
  text-decoration: none;
  overflow: hidden;
  transition: border-color .2s var(--ease), transform .2s var(--ease);
}

.page-faq .route-card::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 3px;
  background: var(--ac, var(--mint));
}

.page-faq .route-card--warm { --ac: var(--orange); }
.page-faq .route-card--violet { --ac: var(--violet); }

.page-faq .route-card:hover,
.page-faq .route-card:focus-visible {
  border-color: var(--ac, var(--mint));
  transform: translateY(-2px);
}

.page-faq .route-num {
  font-size: .74rem;
  letter-spacing: .1em;
  color: var(--ac, var(--mint));
}

.page-faq .route-title {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.35;
}

.page-faq .route-desc {
  font-size: .9rem;
  line-height: 1.65;
  color: var(--fog);
}

@media (min-width: 760px) {
  .page-faq .route-strip {
    grid-template-columns: 1.15fr .95fr .9fr;
  }
}

/* ---------- 问答组 ---------- */
.page-faq .qa-section {
  padding-block: clamp(2rem, 4.5vw, 3rem);
  border-top: 1px solid var(--line-soft);
}

.page-faq .qa-section-head {
  display: grid;
  gap: .45rem;
  margin-bottom: clamp(1rem, 2.4vw, 1.5rem);
  max-width: 62ch;
}

.page-faq .qa-list {
  display: grid;
  gap: .7rem;
}

.page-faq .qa-item {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--ink-800);
  overflow: hidden;
  transition: background-color .2s var(--ease), border-color .2s var(--ease);
}

.page-faq .qa-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--line);
  transition: background-color .2s var(--ease);
}

.page-faq .qa-item[open] {
  background: var(--ink-700);
  border-color: rgba(43, 245, 210, .42);
}

.page-faq .qa-item[open]::before {
  background: var(--mint);
}

.page-faq .qa-list--violet .qa-item[open] {
  border-color: rgba(169, 139, 255, .45);
}

.page-faq .qa-list--violet .qa-item[open]::before {
  background: var(--violet);
}

.page-faq .qa-q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: baseline;
  gap: .6rem;
  padding: .85rem .95rem .85rem 1.1rem;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: clamp(.98rem, 1.5vw, 1.06rem);
  line-height: 1.42;
  color: var(--bone);
}

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

.page-faq .qa-q:hover { color: var(--mint); }

.page-faq .qa-idx {
  font-size: .72rem;
  letter-spacing: .05em;
  color: var(--fog);
  transition: color .2s var(--ease);
}

.page-faq .qa-item[open] .qa-idx { color: var(--mint); }
.page-faq .qa-list--violet .qa-item[open] .qa-idx { color: var(--violet); }

.page-faq .qa-caret {
  display: inline-block;
  font-size: .8rem;
  color: var(--mint);
  transform-origin: 50% 50%;
  transition: transform .2s var(--ease);
}

.page-faq .qa-item[open] .qa-caret { transform: rotate(90deg); }
.page-faq .qa-list--violet .qa-caret { color: var(--violet); }

.page-faq .qa-a {
  display: grid;
  gap: .65rem;
  padding: 0 1rem 1.05rem 1.1rem;
  color: var(--fog);
  font-size: 1rem;
  line-height: 1.72;
}

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

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

.page-faq .qa-steps {
  margin: 0;
  padding-left: 1.15rem;
  display: grid;
  gap: .32rem;
}

.page-faq .qa-steps li { padding-left: .15rem; }

.page-faq .qa-steps li::marker {
  color: var(--mint);
  font-family: var(--font-mono);
  font-size: .85em;
}

@media (min-width: 640px) {
  .page-faq .qa-a { padding-left: 2.5rem; }
}

/* ---------- 导出区 ---------- */
.page-faq .export-grid {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .export-aside {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.page-faq .export-aside .media {
  border: 1px solid var(--line);
  border-radius: var(--cut);
  overflow: hidden;
  background: var(--ink-800);
}

.page-faq .export-aside img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.page-faq .flow-card {
  display: grid;
  gap: .7rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--ink-800);
}

.page-faq .flow-card-title {
  margin: 0;
  font-size: .9rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--bone);
}

.page-faq .flow-svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.page-faq .flow-svg .flow-line {
  fill: none;
  stroke: var(--line);
  stroke-width: 2;
  stroke-dasharray: 6 8;
}

.page-faq .flow-svg .flow-dot {
  fill: var(--ink-900);
  stroke-width: 2.5;
}

.page-faq .flow-svg .flow-dot--1 { stroke: var(--mint); }
.page-faq .flow-svg .flow-dot--2 { stroke: var(--orange); }
.page-faq .flow-svg .flow-dot--3 { stroke: var(--sun); }

.page-faq .flow-legend {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .35rem;
  font-size: .86rem;
  line-height: 1.55;
  color: var(--fog);
}

.page-faq .flow-legend li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .5rem;
  align-items: baseline;
}

.page-faq .flow-legend .n {
  font-size: .72rem;
  color: var(--mint);
}

@media (min-width: 900px) {
  .page-faq .export-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr);
    align-items: start;
  }
}

/* ---------- 反馈清单 ---------- */
.page-faq .feedback-grid {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .feedback-card {
  padding: clamp(1rem, 2.4vw, 1.5rem);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--ink-800);
}

.page-faq .feedback-card--note {
  background:
    radial-gradient(110% 130% at 100% 0%, rgba(255, 138, 61, .14), transparent 62%),
    var(--ink-800);
  border-color: rgba(255, 138, 61, .3);
}

.page-faq .feedback-card h3 {
  margin: 0 0 .85rem;
  font-size: 1.02rem;
  line-height: 1.4;
  letter-spacing: .01em;
}

.page-faq .feedback-card p {
  margin: 0 0 .6rem;
  font-size: .95rem;
  line-height: 1.7;
  color: var(--fog);
}

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

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

.page-faq .check-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .65rem;
  align-items: start;
  font-size: .96rem;
  line-height: 1.6;
  color: var(--fog);
}

.page-faq .chk {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  width: 1.05rem;
  height: 1.05rem;
  margin: .2rem 0 0;
  border: 1.5px solid var(--line);
  border-radius: 4px;
  background: var(--ink-900);
  cursor: pointer;
  flex: none;
  transition: background-color .15s var(--ease), border-color .15s var(--ease);
}

.page-faq .chk:checked {
  background: var(--mint);
  border-color: var(--mint);
}

.page-faq .chk:checked::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 48%;
  width: .26rem;
  height: .5rem;
  border: solid var(--ink-900);
  border-width: 0 2px 2px 0;
  transform: translate(-50%, -58%) rotate(45deg);
}

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

.page-faq .check-list label { cursor: pointer; }

.page-faq .chk:checked + label {
  color: var(--bone);
  text-decoration: line-through;
  text-decoration-color: var(--mint);
}

@media (min-width: 820px) {
  .page-faq .feedback-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
  }
}

/* ---------- 联系卡片 ---------- */
.page-faq .qa-help {
  padding-top: clamp(2rem, 4.5vw, 3rem);
}

.page-faq .help-card {
  display: grid;
  gap: 1.2rem;
  padding: clamp(1.3rem, 3.4vw, 2.4rem);
  border: 1px solid var(--line);
  border-radius: var(--r-lg) var(--r-sm) var(--r-lg) var(--r-sm);
  background:
    radial-gradient(120% 140% at 92% 0%, rgba(43, 245, 210, .16), transparent 58%),
    var(--ink-800);
}

.page-faq .help-copy {
  display: grid;
  gap: .55rem;
  align-content: start;
}

.page-faq .help-copy .section-kicker { margin: 0; }

.page-faq .help-copy p {
  margin: 0;
  font-size: .98rem;
  line-height: 1.72;
  color: var(--fog);
  max-width: 46ch;
}

.page-faq .help-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: .4rem;
}

.page-faq .help-contact {
  display: grid;
  gap: .7rem;
  align-content: start;
  padding-top: .4rem;
  border-top: 1px solid var(--line-soft);
}

.page-faq .help-contact-item {
  display: grid;
  gap: .12rem;
}

.page-faq .help-label {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--dim);
}

.page-faq .help-value {
  font-size: 1rem;
  line-height: 1.5;
  color: var(--bone);
}

.page-faq .help-value.mono {
  font-family: var(--font-mono);
  letter-spacing: .01em;
  font-size: .95rem;
}

@media (min-width: 820px) {
  .page-faq .help-card {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: start;
  }

  .page-faq .help-contact {
    border-top: 0;
    border-left: 1px solid var(--line-soft);
    padding-top: 0;
    padding-left: clamp(1rem, 2.4vw, 1.8rem);
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .route-card,
  .page-faq .hero-jump a,
  .page-faq .qa-item,
  .page-faq .qa-item::before,
  .page-faq .qa-idx,
  .page-faq .qa-caret,
  .page-faq .chk {
    transition: none;
  }

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

  .page-faq .qa-item[open] .qa-caret { transform: none; }
}