.page-faq {
  --faq-index-w: 264px;
  --faq-top: calc(var(--header-h) + 22px);
  --faq-ink-text: #2B2F36;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-faq a {
  color: inherit;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  background:
    radial-gradient(circle at 86% 10%, rgba(212, 162, 76, 0.24), transparent 52%),
    radial-gradient(circle at 6% 94%, rgba(200, 52, 43, 0.26), transparent 48%),
    linear-gradient(158deg, var(--ink) 0%, var(--ink-soft) 62%, #16283c 100%);
  color: var(--paper);
  padding: 26px 0 42px;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: auto -10% -40% 40%;
  height: 260px;
  background: repeating-linear-gradient(
    90deg,
    rgba(232, 201, 138, 0.16) 0 1px,
    transparent 1px 34px
  );
  pointer-events: none;
  mask-image: linear-gradient(180deg, transparent, #000);
  -webkit-mask-image: linear-gradient(180deg, transparent, #000);
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
  padding-inline: 18px;
}

.page-faq .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 12.5px;
  letter-spacing: 0.02em;
  color: rgba(245, 239, 227, 0.62);
}

.page-faq .breadcrumbs__list a {
  color: rgba(245, 239, 227, 0.82);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .breadcrumbs__list a:hover {
  color: var(--gold-soft);
  border-bottom-color: rgba(232, 201, 138, 0.6);
}

.page-faq .breadcrumbs__list li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(245, 239, 227, 0.34);
}

.page-faq .faq-hero h1 {
  margin: 16px 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.9rem, 7vw, 3.3rem);
  line-height: 1.16;
  letter-spacing: -0.012em;
  color: var(--paper-2);
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 36em;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(245, 239, 227, 0.78);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: rgba(245, 239, 227, 0.7);
}

.page-faq .faq-hero__facts li {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
}

.page-faq .faq-hero__facts .mono {
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 600;
  color: var(--gold-soft);
  letter-spacing: 0.02em;
}

.page-faq .faq-hero__figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line-ink);
  background: rgba(245, 239, 227, 0.06);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.36);
}

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

/* ---------- 主体分栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 22px;
  padding: 32px 18px 64px;
}

/* ---------- 左栏索引 ---------- */
.page-faq .faq-index {
  align-self: start;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 20px 18px;
  box-shadow: var(--shadow-soft);
  scroll-margin-top: var(--faq-top);
}

.page-faq .faq-index__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 15.5px;
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-faq .faq-index__note {
  margin: 0 0 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--faq-ink-text);
}

.page-faq .faq-index__list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  transition: transform 0.2s var(--ease), border-color 0.2s var(--ease),
    background-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  transform: translateY(-2px);
  border-color: var(--gold);
  background: var(--gold-soft);
  box-shadow: var(--shadow-soft);
  outline: none;
}

.page-faq .faq-index__link:focus-visible {
  box-shadow: var(--focus);
}

.page-faq .faq-index__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--red);
}

.page-faq .faq-index__help {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--faq-ink-text);
}

/* ---------- 问答区块 ---------- */
.page-faq .faq-main {
  display: grid;
  gap: 18px;
  min-width: 0;
}

.page-faq .faq-block {
  position: relative;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 22px 18px 14px;
  box-shadow: var(--shadow-soft);
  scroll-margin-top: calc(var(--faq-top) + 10px);
  transition: border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.page-faq .faq-block:hover {
  border-color: rgba(212, 162, 76, 0.55);
  box-shadow: 0 16px 44px rgba(14, 27, 42, 0.11);
}

.page-faq .faq-block__label {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--graphite);
}

.page-faq .faq-block__num {
  display: inline-grid;
  place-items: center;
  min-width: 26px;
  height: 26px;
  padding: 0 7px;
  border-radius: var(--radius-pill);
  background: var(--ink);
  color: var(--gold-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
}

.page-faq .faq-block:nth-child(2) .faq-block__num {
  background: var(--red);
  color: #ffffff;
}

.page-faq .faq-block:nth-child(3) .faq-block__num {
  background: var(--gold);
  color: var(--ink);
}

.page-faq .faq-block:nth-child(4) .faq-block__num {
  background: var(--teal);
  color: var(--ink);
}

.page-faq .faq-block:nth-child(5) .faq-block__num {
  background: var(--red-dark);
  color: var(--paper-2);
}

.page-faq .faq-block__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.25rem, 4.6vw, 1.75rem);
  line-height: 1.26;
  letter-spacing: -0.008em;
  color: var(--ink);
}

.page-faq .faq-block__lead {
  margin: 0 0 14px;
  max-width: 48em;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--faq-ink-text);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-item {
  border-top: 1px solid var(--line);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 2px;
  list-style: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
  color: var(--ink);
  transition: color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .faq-item > summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-item > summary:hover {
  color: var(--red-dark);
}

.page-faq .faq-item > summary:focus-visible {
  outline: none;
  box-shadow: var(--focus);
}

.page-faq .faq-item h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15.5px;
  line-height: 1.55;
  letter-spacing: 0;
  color: inherit;
}

.page-faq .faq-item > summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  display: grid;
  place-items: center;
  width: 25px;
  height: 25px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1;
  color: var(--red-dark);
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease),
    color 0.2s var(--ease);
}

.page-faq .faq-item[open] > summary::after {
  content: "−";
  background: var(--red);
  border-color: var(--red);
  color: #ffffff;
}

.page-faq .faq-answer {
  padding: 0 2px 18px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--faq-ink-text);
}

.page-faq .faq-answer > p {
  margin: 0 0 10px;
}

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

.page-faq .faq-answer a {
  color: var(--red-dark);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 0.18s var(--ease);
}

.page-faq .faq-answer a:hover {
  color: var(--red);
}

/* 步骤列表 */
.page-faq .faq-steps {
  display: grid;
  gap: 10px;
  margin: 12px 0;
  padding: 0;
  list-style: none;
  counter-reset: faqstep;
}

.page-faq .faq-steps li {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  font-size: 14px;
  line-height: 1.72;
}

.page-faq .faq-steps li::before {
  content: counter(faqstep);
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: var(--radius-pill);
  background: var(--gold-soft);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
}

/* 状态点 */
.page-faq .status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--teal);
  vertical-align: middle;
  box-shadow: 0 0 0 3px rgba(111, 168, 155, 0.24);
}

/* 可复制期号 */
.page-faq .faq-copy {
  display: inline-flex;
  align-items: center;
  padding: 2px 12px;
  border-radius: var(--radius-pill);
  border: 1px dashed rgba(200, 52, 43, 0.5);
  background: rgba(200, 52, 43, 0.07);
  color: var(--red-dark);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.7;
  cursor: pointer;
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease),
    box-shadow 0.2s var(--ease);
}

.page-faq .faq-copy:hover {
  background: rgba(200, 52, 43, 0.14);
  border-style: solid;
}

.page-faq .faq-copy:focus-visible {
  outline: none;
  box-shadow: var(--focus);
}

.page-faq .faq-copy[data-copied] {
  border-style: solid;
  border-color: var(--teal);
  background: rgba(111, 168, 155, 0.18);
  color: var(--ink);
  box-shadow: 0 0 0 3px rgba(111, 168, 155, 0.3);
}

/* 插图 */
.page-faq .faq-figure {
  margin: 2px 0 16px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--paper);
}

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

.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  background: var(--paper-2);
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--graphite);
}

/* 联系信息行 */
.page-faq .faq-contact {
  display: grid;
  gap: 0;
  margin: 0 0 12px;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--paper);
}

.page-faq .faq-contact li {
  display: grid;
  grid-template-columns: 78px minmax(0, 1fr);
  gap: 10px;
  padding: 10px 14px;
  font-size: 13.5px;
  line-height: 1.65;
}

.page-faq .faq-contact li:nth-child(even) {
  background: var(--paper-2);
}

.page-faq .faq-contact li + li {
  border-top: 1px solid var(--line);
}

.page-faq .faq-contact__k {
  color: var(--graphite);
  font-weight: 600;
}

.page-faq .faq-contact__v {
  color: var(--ink);
  word-break: break-word;
}

.page-faq .faq-contact__v.mono {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-hero {
    padding: 34px 0 56px;
  }

  .page-faq .faq-hero__grid {
    padding-inline: 24px;
    gap: 34px;
  }

  .page-faq .faq-hero__lead {
    font-size: 16.5px;
  }

  .page-faq .faq-layout {
    padding: 42px 24px 80px;
    gap: 26px;
  }

  .page-faq .faq-block {
    padding: 28px 26px 18px;
  }

  .page-faq .faq-item h3 {
    font-size: 16.5px;
  }

  .page-faq .faq-contact li {
    grid-template-columns: 92px minmax(0, 1fr);
    padding: 12px 16px;
  }
}

/* ---------- 桌面端：左右分栏 + 粘性索引 ---------- */
@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: center;
    gap: 48px;
  }

  .page-faq .faq-layout {
    grid-template-columns: var(--faq-index-w) minmax(0, 1fr);
    gap: 46px;
    padding-top: 56px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: var(--faq-top);
    padding: 24px 20px;
  }

  .page-faq .faq-block + .faq-block {
    margin-top: 2px;
  }
}

@media (min-width: 1180px) {
  .page-faq {
    --faq-index-w: 288px;
  }

  .page-faq .faq-layout {
    gap: 56px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__link,
  .page-faq .faq-item > summary,
  .page-faq .faq-copy,
  .page-faq .faq-block {
    transition: none;
  }

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