.page-faq {
  --faq-border: var(--color-border);
  --faq-green: var(--color-primary);
  --faq-green-deep: var(--color-primary-deep);
  --faq-gold: var(--color-accent);
  --faq-bg: var(--color-bg);
  --faq-sage: var(--color-bg-alt);
  --faq-ink: var(--color-ink);
  --faq-alert: var(--color-alert);
  background:
    radial-gradient(ellipse at top right, rgba(221, 229, 218, 0.55), transparent 65%),
    var(--faq-bg);
}

/* ---------- 首屏 ---------- */
.page-faq__hero {
  padding: calc(var(--header-height) + 32px) 0 40px;
  border-bottom: 2px solid var(--faq-ink);
  position: relative;
  overflow: hidden;
}

.page-faq__hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -5px;
  height: 1px;
  opacity: 0.18;
  background: var(--faq-ink);
}

.page-faq__breadcrumb {
  margin-bottom: 32px;
}

.page-faq__hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

.page-faq__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--faq-green);
  margin: 0 0 12px;
}

.page-faq__hero h1 {
  font-family: var(--font-title);
  font-size: clamp(1.8rem, 5.2vw, 2.9rem);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: 0.01em;
  margin: 0 0 20px;
  color: var(--faq-ink);
}

.page-faq__lead {
  font-size: 16px;
  line-height: 1.8;
  color: var(--faq-ink);
  max-width: 62ch;
  margin: 0 0 24px;
}

.page-faq__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq__tags .seal {
  font-size: 12px;
  padding: 5px 12px;
  border: 1px solid var(--faq-alert);
  border-radius: 3px;
  color: var(--faq-alert);
  background: transparent;
  letter-spacing: 0.02em;
  line-height: 1.4;
}

.page-faq__service {
  margin-top: 4px;
  padding: 20px 22px;
  background: rgba(221, 229, 218, 0.45);
  border: 1px solid var(--faq-border);
  border-left: 3px solid var(--faq-green);
  border-radius: 0 8px 8px 0;
  font-size: 14px;
  line-height: 1.7;
  box-shadow: 0 4px 20px rgba(27, 27, 27, 0.04);
}

.page-faq__service-item {
  display: flex;
  flex-direction: column;
  margin-bottom: 12px;
}

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

.page-faq__service-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--faq-green);
  margin-bottom: 2px;
}

.page-faq__service-value {
  font-size: 13px;
  word-break: break-all;
}

/* ---------- 布局 ---------- */
.page-faq__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  padding: 44px 0 88px;
}

/* ---------- 目录侧栏 ---------- */
.page-faq__toc {
  padding: 22px 20px;
  background: rgba(255, 255, 255, 0.42);
  border: 1px solid var(--faq-border);
  border-radius: var(--radius);
}

.page-faq__toc-label {
  font-family: var(--font-title);
  font-size: 15px;
  font-weight: 700;
  color: var(--faq-green-deep);
  margin: 0 0 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-border);
  position: relative;
}

.page-faq__toc-label::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 44px;
  height: 2px;
  background: var(--faq-gold);
}

.page-faq__toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  flex-wrap: nowrap;
  overflow-x: auto;
  padding-bottom: 4px;
  -webkit-overflow-scrolling: touch;
}

.page-faq__toc-list::-webkit-scrollbar {
  height: 3px;
}

.page-faq__toc-list::-webkit-scrollbar-thumb {
  background: var(--faq-border);
  border-radius: 2px;
}

.page-faq__toc-list li {
  margin: 0;
  flex-shrink: 0;
}

.page-faq__toc-list a {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding: 7px 14px;
  color: var(--faq-ink);
  text-decoration: none;
  font-size: 13px;
  line-height: 1.4;
  border: 1px solid var(--faq-border);
  border-radius: 999px;
  white-space: nowrap;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.page-faq__toc-list a span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--faq-gold);
}

.page-faq__toc-list a:hover,
.page-faq__toc-list a:focus-visible {
  color: var(--faq-green);
  border-color: var(--faq-green);
  background: rgba(47, 107, 94, 0.06);
  outline: none;
}

.page-faq__toc-help {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--faq-border);
  display: none;
}

.page-faq__toc-help p {
  font-size: 13px;
  color: var(--faq-ink);
  margin: 0 0 12px;
}

.page-faq__toc-help .btn {
  display: block;
  text-align: center;
  font-size: 13px;
  width: 100%;
}

/* ---------- 正文内容 ---------- */
.page-faq__content {
  min-width: 0;
}

.page-faq__section {
  margin-bottom: 56px;
  scroll-margin-top: calc(var(--header-height) + 24px);
}

.page-faq__section:last-of-type {
  margin-bottom: 0;
}

.page-faq__section-head {
  display: flex;
  align-items: center;
  gap: 14px;
  border-bottom: 1px solid var(--faq-ink);
  padding-bottom: 14px;
  margin-bottom: 20px;
  position: relative;
}

.page-faq__section-head::before {
  content: "";
  flex-shrink: 0;
  width: 5px;
  height: 28px;
  background: linear-gradient(180deg, var(--faq-green), var(--faq-gold));
  border-radius: 2px;
}

.page-faq__section-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--faq-green);
  border: 1px solid var(--faq-green);
  padding: 3px 7px;
  border-radius: 3px;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

.page-faq__section-head h2 {
  font-family: var(--font-title);
  font-size: clamp(1.25rem, 2.8vw, 1.7rem);
  font-weight: 700;
  line-height: 1.3;
  margin: 0;
  color: var(--faq-ink);
}

.page-faq__section-intro {
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-ink);
  margin: 0 0 24px;
  padding-left: 18px;
  border-left: 2px solid var(--faq-sage);
}

/* ---------- 手风琴 ---------- */
.page-faq__acc-list {
  border-top: 1px solid var(--faq-border);
}

.page-faq__acc {
  border-bottom: 1px solid var(--faq-border);
  scroll-margin-top: calc(var(--header-height) + 24px);
}

.page-faq__acc summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 0;
  cursor: pointer;
  list-style: none;
  transition: padding 0.25s ease;
}

.page-faq__acc summary::-webkit-details-marker {
  display: none;
}

.page-faq__acc summary:hover {
  padding-left: 6px;
}

.page-faq__acc-num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--faq-green);
  border: 1px solid var(--faq-border);
  padding: 3px 7px;
  border-radius: 3px;
  flex-shrink: 0;
  transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.page-faq__acc-title {
  flex: 1;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--faq-ink);
  display: flex;
  align-items: center;
  min-width: 0;
}

.page-faq__acc-title::after {
  content: "";
  flex: 1;
  height: 1px;
  min-width: 12px;
  margin-left: 12px;
  background: var(--faq-border);
  transition: height 0.3s ease, background 0.3s ease, opacity 0.3s ease;
}

.page-faq__acc summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 400;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1.5px solid var(--faq-gold);
  border-radius: 50%;
  color: var(--faq-gold);
  flex-shrink: 0;
  transition: background 0.3s ease, border-color 0.3s ease, color 0.3s ease, transform 0.3s ease;
}

.page-faq__acc[open] summary::after {
  content: "—";
  background: var(--faq-green);
  border-color: var(--faq-green);
  color: var(--faq-bg);
  transform: rotate(180deg);
}

.page-faq__acc[open] .page-faq__acc-num {
  background: var(--faq-green);
  border-color: var(--faq-green);
  color: var(--faq-bg);
}

.page-faq__acc[open] .page-faq__acc-title::after {
  height: 2px;
  background: linear-gradient(90deg, var(--faq-green), var(--faq-gold));
  opacity: 0.8;
}

.page-faq__acc-body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.35s ease;
}

.page-faq__acc[open] > .page-faq__acc-body {
  grid-template-rows: 1fr;
}

.page-faq__acc-inner {
  overflow: hidden;
  min-height: 0;
  padding: 0 0 22px 46px;
}

.page-faq__acc-inner p {
  font-size: 14px;
  line-height: 1.85;
  color: var(--faq-ink);
  margin: 0 0 12px;
}

.page-faq__acc-inner p:last-child {
  margin-bottom: 0;
}

.page-faq__acc-inner a {
  color: var(--faq-green);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--faq-gold);
  transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

.page-faq__acc-inner a:hover,
.page-faq__acc-inner a:focus-visible {
  color: var(--faq-green-deep);
  text-decoration-color: var(--faq-green);
  outline: none;
}

/* ---------- 清单 ---------- */
.page-faq__checklist {
  list-style: none;
  margin: 12px 0;
  padding: 0;
}

.page-faq__checklist li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--faq-ink);
}

.page-faq__checklist li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.68em;
  width: 8px;
  height: 8px;
  border: 1.5px solid var(--faq-green);
  border-radius: 2px;
  background: transparent;
}

/* ---------- 图片相框 ---------- */
.page-faq__figure {
  margin: 36px 0 0;
  padding: 8px;
  background: #fff;
  border: 1px solid var(--faq-border);
  border-radius: 10px;
  box-shadow: var(--shadow);
}

.page-faq__figure img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 6px;
}

.page-faq__figure figcaption {
  margin-top: 10px;
  padding: 0 4px 4px;
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--faq-green);
  letter-spacing: 0.04em;
  border-left: 2px solid var(--faq-gold);
  padding-left: 10px;
  line-height: 1.5;
}

.page-faq__figure--compact {
  max-width: 800px;
}

/* ---------- 底部继续阅读 ---------- */
.page-faq__continue {
  margin-top: 72px;
  padding: 24px 22px;
  background: var(--faq-green-deep);
  color: var(--faq-bg);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq__continue p {
  font-family: var(--font-title);
  font-size: 14px;
  font-weight: 700;
  margin: 0 0 4px;
  color: var(--faq-gold);
  letter-spacing: 0.1em;
}

.page-faq__continue a {
  color: var(--faq-bg);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.5;
  padding: 4px 0;
  border-bottom: 1px solid rgba(247, 243, 233, 0.2);
  transition: color 0.2s ease, border-color 0.2s ease, padding-left 0.2s ease;
}

.page-faq__continue a:hover,
.page-faq__continue a:focus-visible {
  color: var(--faq-gold);
  border-color: var(--faq-gold);
  padding-left: 8px;
  outline: none;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 640px) {
  .page-faq__hero {
    padding: calc(var(--header-height) + 48px) 0 56px;
  }

  .page-faq__service {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    padding: 22px 26px;
  }

  .page-faq__service-item {
    margin-bottom: 0;
  }

  .page-faq__continue {
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px 28px;
    padding: 28px 32px;
  }

  .page-faq__continue p {
    width: 100%;
  }
}

/* ---------- 桌面端 ---------- */
@media (min-width: 920px) {
  .page-faq__hero {
    padding: calc(var(--header-height) + 72px) 0 72px;
  }

  .page-faq__hero-grid {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 48px;
    align-items: start;
  }

  .page-faq__service {
    display: block;
    margin-top: 0;
    position: sticky;
    top: calc(var(--header-height) + 32px);
    padding: 24px 24px;
  }

  .page-faq__service-item {
    margin-bottom: 16px;
  }

  .page-faq__layout {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 60px;
    padding: 64px 0 96px;
    align-items: start;
  }

  .page-faq__toc {
    position: sticky;
    top: calc(var(--header-height) + 32px);
    align-self: start;
    padding: 24px 22px;
  }

  .page-faq__toc-list {
    display: block;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq__toc-list li {
    flex-shrink: 1;
  }

  .page-faq__toc-list a {
    display: flex;
    gap: 10px;
    padding: 11px 4px;
    border: none;
    border-bottom: 1px dashed var(--faq-border);
    border-radius: 0;
    white-space: normal;
    font-size: 14px;
  }

  .page-faq__toc-list a span {
    font-size: 12px;
  }

  .page-faq__toc-list a:hover,
  .page-faq__toc-list a:focus-visible {
    background: rgba(47, 107, 94, 0.06);
    padding-left: 10px;
  }

  .page-faq__toc-help {
    display: block;
  }

  .page-faq__content {
    padding-left: 28px;
    border-left: 1px solid var(--faq-border);
  }

  .page-faq__section {
    margin-bottom: 64px;
  }

  .page-faq__acc summary {
    padding: 22px 0;
  }

  .page-faq__acc summary:hover {
    padding-left: 10px;
  }

  .page-faq__acc-title {
    font-size: 16px;
  }
}