.page-faq {
  --faq-rail: 258px;
  --faq-line: rgba(79, 138, 139, 0.38);
  --faq-line-soft: rgba(79, 138, 139, 0.22);
  background:
    radial-gradient(120% 58% at 100% 0%, rgba(200, 64, 47, 0.10), transparent 62%),
    linear-gradient(180deg, var(--c-deep) 0%, var(--c-ink) 82%);
  color: var(--text-main);
  font-family: var(--font-body);
  padding-bottom: clamp(3rem, 8vw, 6rem);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(1.75rem, 4vw, 3rem) 0 clamp(1.5rem, 3vw, 2.25rem);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--c-tide) 0%, rgba(79, 138, 139, 0) 58%, var(--c-home) 100%);
}

.page-faq .faq-hero h1 {
  margin: 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 7vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--c-foam);
}

.page-faq .faq-hero__lead {
  max-width: 46ch;
  margin: clamp(1rem, 2.5vw, 1.5rem) 0 0;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-faq .faq-hero__meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 0.75rem 1.5rem;
  margin: clamp(1.5rem, 3vw, 2rem) 0 0;
  padding: clamp(0.875rem, 2vw, 1.125rem) 0 0;
  list-style: none;
  border-top: 1px solid var(--faq-line-soft);
  font-size: 0.8125rem;
  color: var(--text-soft);
}

.page-faq .faq-hero__meta li {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

.page-faq .faq-hero__meta strong {
  font-family: var(--font-mono);
  font-size: 1.375rem;
  font-weight: 700;
  line-height: 1;
  color: var(--c-foam);
}

/* ---------- 主体栅格 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 3.25rem);
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
}

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

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) var(--faq-rail);
    gap: clamp(2.5rem, 4vw, 3.75rem);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 92px;
  }
}

/* ---------- 章节 ---------- */
.page-faq .faq-section + .faq-section {
  margin-top: clamp(2.5rem, 6vw, 4.5rem);
  padding-top: clamp(2rem, 4vw, 3rem);
  border-top: 1px solid var(--faq-line-soft);
}

.page-faq .section-kicker {
  margin: 0;
  font-family: var(--font-serif);
  font-size: 0.8125rem;
  letter-spacing: 0.16em;
  color: var(--c-tide);
}

.page-faq .section-title {
  margin: 0.4rem 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.375rem, 3.8vw, 1.875rem);
  line-height: 1.26;
  letter-spacing: -0.015em;
  color: var(--c-foam);
  max-width: 30ch;
}

.page-faq .faq-section__lead {
  margin: 0.9rem 0 0;
  max-width: 56ch;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-faq .faq-more {
  margin: 1.25rem 0 0;
  font-size: 0.875rem;
  color: var(--text-faint);
}

.page-faq .faq-more a {
  color: var(--c-mist);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-line);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-more a:hover {
  color: var(--c-foam);
  border-color: var(--border-strong);
}

/* ---------- 三步路径条 ---------- */
.page-faq .faq-route {
  position: relative;
  list-style: none;
  margin: clamp(1.5rem, 3vw, 2rem) 0 0;
  padding: clamp(1rem, 2.4vw, 1.25rem);
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.875rem;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: var(--bg-panel);
}

.page-faq .faq-route__node {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.page-faq .faq-route__dot {
  flex: 0 0 auto;
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border: 2px solid var(--c-tide);
  border-radius: 50%;
  background: var(--c-ink);
}

.page-faq .faq-route__dot::after {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-tide);
}

.page-faq .faq-route__text {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
  min-width: 0;
}

.page-faq .faq-route__label {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--c-foam);
}

.page-faq .faq-route__time {
  font-size: 0.75rem;
  color: var(--text-faint);
}

@media (min-width: 640px) {
  .page-faq .faq-route {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
    padding: 1.5rem 1.25rem;
  }

  .page-faq .faq-route::before {
    content: "";
    position: absolute;
    left: 16%;
    right: 16%;
    top: calc(1.5rem + 10px);
    height: 2px;
    background: linear-gradient(90deg, var(--c-tide), var(--c-mist), var(--c-home));
    opacity: 0.6;
  }

  .page-faq .faq-route__node {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.5rem;
  }

  .page-faq .faq-route__text {
    align-items: center;
  }
}

/* ---------- 步骤卡 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
  padding: 0;
  display: grid;
  gap: 0.875rem;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0 1rem;
  align-items: start;
  padding: 1.25rem 1.25rem 1.25rem 1.375rem;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: var(--bg-card);
  box-shadow: var(--shadow-card);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-step:hover,
.page-faq .faq-step:focus-within {
  transform: translateY(-3px);
  border-color: var(--border-strong);
  background: var(--bg-card-hover);
}

.page-faq .faq-step__num {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1;
  color: var(--c-tide);
}

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

.page-faq .faq-step__title {
  margin: 0.125rem 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--c-foam);
}

.page-faq .faq-step__text {
  margin: 0;
  max-width: 54ch;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-faq .faq-step__note {
  margin: 0.625rem 0 0;
  padding-left: 0.75rem;
  border-left: 2px solid var(--faq-line);
  font-family: var(--font-serif);
  font-size: 0.8125rem;
  letter-spacing: 0.03em;
  color: var(--text-faint);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: clamp(1.5rem, 3.5vw, 2.25rem) 0 0;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: var(--bg-sunken);
  overflow: hidden;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-faq .faq-figure--tall img {
  aspect-ratio: 3 / 2;
}

.page-faq .faq-figure__caption {
  padding: 0.75rem 1rem;
  border-top: 1px solid var(--faq-line-soft);
  font-family: var(--font-serif);
  font-size: 0.8125rem;
  line-height: 1.7;
  letter-spacing: 0.03em;
  color: var(--text-faint);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-item {
  margin-top: 0.75rem;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: var(--bg-card);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-item[open] {
  border-color: var(--border-strong);
  background: var(--bg-card-hover);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9375rem 1rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--c-foam);
  transition: color var(--dur) var(--ease);
}

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

.page-faq .faq-item__q::marker {
  content: "";
}

.page-faq .faq-item__q:hover .faq-item__qtext {
  color: #FFFFFF;
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--c-mist);
  outline-offset: -3px;
}

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

.page-faq .faq-item__marker {
  position: relative;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin-top: 0.3rem;
}

.page-faq .faq-item__marker::before,
.page-faq .faq-item__marker::after {
  content: "";
  position: absolute;
  background: var(--c-tide);
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-item__marker::before {
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  transform: translateY(-50%);
}

.page-faq .faq-item__marker::after {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  transform: translateX(-50%);
}

.page-faq .faq-item[open] .faq-item__marker::before {
  background: var(--c-home);
}

.page-faq .faq-item[open] .faq-item__marker::after {
  transform: translateX(-50%) scaleY(0);
}

.page-faq .faq-item__a {
  position: relative;
  padding: 0 1rem 1.0625rem;
  animation: faqOpenIn 200ms var(--ease) both;
}

.page-faq .faq-item__a::before {
  content: "";
  position: absolute;
  left: 1rem;
  right: 1rem;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--c-tide), rgba(200, 64, 47, 0.6) 62%, rgba(79, 138, 139, 0));
  transform-origin: left center;
}

.page-faq .faq-item[open] .faq-item__a::before {
  animation: faqTideSweep 520ms var(--ease) both;
}

.page-faq .faq-item__a p {
  margin: 0.875rem 0 0;
  max-width: 58ch;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-faq .faq-item__a p + p {
  margin-top: 0.625rem;
}

.page-faq .faq-item__a strong {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--c-foam);
}

.page-faq .faq-item__a ul {
  margin: 0.875rem 0 0;
  padding-left: 0;
  list-style: none;
  display: grid;
  gap: 0.5rem;
}

.page-faq .faq-item__a ul li {
  position: relative;
  padding-left: 1rem;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-faq .faq-item__a ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 1px;
  background: var(--c-tide);
}

@keyframes faqOpenIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}

@keyframes faqTideSweep {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

/* ---------- 自查清单 ---------- */
.page-faq .faq-checklist {
  list-style: none;
  margin: clamp(1.25rem, 3vw, 1.75rem) 0 0;
  padding: 0;
  display: grid;
  gap: 0.625rem;
  counter-reset: none;
}

.page-faq .faq-checklist li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.875rem;
  align-items: baseline;
  padding: 0.875rem 1rem;
  border: 1px solid var(--faq-line-soft);
  border-left: 3px solid var(--c-board);
  border-radius: var(--radius);
  background: var(--bg-card);
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-faq .faq-checklist__num {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--c-board);
}

/* ---------- 联系块 ---------- */
.page-faq .faq-contact {
  margin-top: clamp(1.25rem, 3vw, 1.75rem);
  padding: clamp(1.25rem, 3vw, 1.75rem);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  background: var(--bg-panel);
}

.page-faq .faq-contact__lead {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-faq .faq-contact__list {
  margin: 1.125rem 0 0;
  display: grid;
  gap: 0;
}

.page-faq .faq-contact__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.25rem;
  padding: 0.75rem 0;
  border-top: 1px dashed var(--faq-line-soft);
}

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

.page-faq .faq-contact__key {
  font-family: var(--font-serif);
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  color: var(--text-faint);
}

.page-faq .faq-contact__val {
  margin: 0;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--c-foam);
}

.page-faq .faq-contact__val.num {
  font-family: var(--font-mono);
  letter-spacing: 0.01em;
  word-break: break-all;
}

.page-faq .faq-contact__note {
  margin: 1rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.75;
  color: var(--text-faint);
}

.page-faq .faq-contact .btn {
  margin-top: 1.25rem;
}

@media (min-width: 640px) {
  .page-faq .faq-contact__row {
    grid-template-columns: 9rem minmax(0, 1fr);
    align-items: baseline;
    gap: 1rem;
  }
}

/* ---------- 右侧快速入口 ---------- */
.page-faq .faq-rail {
  display: grid;
  align-content: start;
  gap: 1rem;
  min-width: 0;
}

.page-faq .faq-rail__card {
  padding: 1rem 1.125rem 1.125rem;
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--c-board);
  border-radius: var(--radius);
  background: var(--bg-card);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-rail__card--plain {
  border-left-color: var(--c-tide);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-faq .faq-rail__list li + li {
  border-top: 1px dashed var(--faq-line-soft);
}

.page-faq .faq-rail__list a {
  display: flex;
  align-items: baseline;
  gap: 0.625rem;
  padding: 0.5rem 0;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text-soft);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-rail__list a .num {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  color: var(--c-tide);
}

.page-faq .faq-rail__list a:hover,
.page-faq .faq-rail__list a:focus-visible {
  color: var(--c-foam);
}

.page-faq .faq-rail__links {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-faq .faq-rail__links a {
  display: inline-block;
  padding: 0.3rem 0.625rem;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius);
  font-size: 0.8125rem;
  line-height: 1.5;
  color: var(--c-mist);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-rail__links a:hover,
.page-faq .faq-rail__links a:focus-visible {
  color: var(--c-foam);
  border-color: var(--border-strong);
  background: rgba(79, 138, 139, 0.12);
}

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--c-mist);
  outline-offset: 3px;
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .faq-item,
  .page-faq .faq-item__a,
  .page-faq .faq-item__a::before,
  .page-faq .faq-item__marker::before,
  .page-faq .faq-item__marker::after,
  .page-faq .faq-rail__list a,
  .page-faq .faq-rail__links a {
    animation: none !important;
    transition: none !important;
  }

  .page-faq .faq-step:hover {
    transform: none;
  }
}