.page-faq {
  --faq-gap: clamp(20px, 3vw, 32px);
  --faq-paper: var(--sand-50);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 5vw, 56px) 0 clamp(40px, 7vw, 84px);
  background:
    radial-gradient(110% 90% at 100% 0%, rgba(35, 211, 211, .16), transparent 58%),
    linear-gradient(138deg, var(--ink-900) 0%, var(--ink-900) 52%, var(--ink-700) 100%);
  border-bottom: 1px solid var(--hairline);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -14%;
  top: -38%;
  width: min(560px, 66vw);
  aspect-ratio: 1 / 1;
  border-radius: 44% 56% 58% 42% / 52% 46% 54% 48%;
  background: linear-gradient(140deg, rgba(242, 169, 59, .22), rgba(242, 169, 59, 0) 70%);
  pointer-events: none;
}

.page-faq .faq-hero .breadcrumb,
.page-faq .faq-hero .faq-kicker,
.page-faq .faq-hero h1,
.page-faq .faq-hero-lede,
.page-faq .faq-hero-chips {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  list-style: none;
  margin: 0 0 clamp(18px, 3vw, 30px);
  padding: 0;
  font-size: 13px;
}

.page-faq .faq-hero .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 8px;
  color: var(--mist-300);
  opacity: .6;
}

.page-faq .faq-hero .breadcrumb-link {
  color: var(--mist-300);
  text-decoration: none;
}

.page-faq .faq-hero .breadcrumb-link:hover,
.page-faq .faq-hero .breadcrumb-link:focus-visible {
  color: var(--gold-300);
}

.page-faq .faq-hero .breadcrumb-current {
  color: var(--gold-300);
}

.page-faq .faq-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan-400);
}

.page-faq .faq-kicker::before {
  content: "";
  width: 24px;
  height: 2px;
  border-radius: 2px;
  background: var(--cyan-400);
}

.page-faq .faq-hero h1 {
  margin: 16px 0 0;
  max-width: 16ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(34px, 7.4vw, 68px);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--text);
}

.page-faq .faq-hero-lede {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.78;
  color: var(--text-dim);
}

.page-faq .faq-hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-chip {
  padding: 7px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--hairline-strong);
  background: rgba(30, 58, 102, .55);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--gold-300);
}

/* ---------- 双栏骨架 ---------- */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  align-items: start;
  padding-block: clamp(30px, 5.5vw, 68px);
}

.page-faq .faq-index {
  align-self: start;
}

.page-faq .faq-index-title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--mist-300);
  text-transform: uppercase;
}

.page-faq .faq-index-nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  scrollbar-width: thin;
}

.page-faq .faq-index-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  min-height: 44px;
  padding: 10px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--hairline);
  background: var(--ink-700);
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.3;
  text-decoration: none;
  white-space: nowrap;
  transition: background .22s var(--ease), color .22s var(--ease), box-shadow .22s var(--ease);
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  color: var(--text);
  border-color: var(--hairline-strong);
}

.page-faq .faq-index-link[data-spy-current="true"] {
  background: var(--ink-500);
  border-color: var(--hairline-strong);
  color: var(--text);
  box-shadow: inset 4px 0 0 var(--cyan-400);
}

.page-faq .faq-index-num {
  font-size: 12px;
  color: var(--gold-500);
}

.page-faq .faq-index-link[data-spy-current="true"] .faq-index-num {
  color: var(--gold-300);
}

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

/* ---------- 章节 ---------- */
.page-faq .faq-sec {
  scroll-margin-top: 116px;
  padding-top: clamp(30px, 4.4vw, 46px);
  border-top: 1px solid var(--hairline);
}

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

.page-faq .faq-sec + .faq-sec {
  margin-top: clamp(30px, 4.4vw, 46px);
}

.page-faq .faq-sec-title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.6vw, 34px);
  line-height: 1.22;
  letter-spacing: -.015em;
  color: var(--text);
}

.page-faq .faq-sec-lede {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--text-dim);
}

/* ---------- 三步流程 ---------- */
.page-faq .faq-flow {
  margin: clamp(20px, 3vw, 30px) 0;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--hairline);
  background: linear-gradient(118deg, var(--ink-700), rgba(30, 58, 102, .38));
}

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

.page-faq .faq-steps {
  counter-reset: faqstep;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-step {
  position: relative;
  padding: 18px 20px 18px 74px;
  border-radius: var(--radius-md);
  border: 1px solid var(--hairline);
  background: var(--ink-700);
}

.page-faq .faq-step::before {
  counter-increment: faqstep;
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 20px;
  top: 18px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 22px;
  line-height: 1.2;
  letter-spacing: -.02em;
  color: var(--gold-500);
}

.page-faq .faq-step-title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text);
}

.page-faq .faq-step-text {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-dim);
}

/* ---------- 排查顺序 ---------- */
.page-faq .faq-order {
  counter-reset: faqorder;
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-left: 2px solid var(--hairline-strong);
}

.page-faq .faq-order-item {
  position: relative;
  padding: 0 0 clamp(20px, 3vw, 28px) clamp(20px, 3vw, 30px);
}

.page-faq .faq-order-item:last-child {
  padding-bottom: 0;
}

.page-faq .faq-order-item::before {
  counter-increment: faqorder;
  content: counter(faqorder);
  position: absolute;
  left: -15px;
  top: 0;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-pill);
  background: var(--ink-900);
  border: 2px solid var(--cyan-600);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--cyan-400);
}

.page-faq .faq-order-title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text);
}

.page-faq .faq-order-item p {
  margin: 8px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-dim);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-accordion {
  margin: clamp(20px, 3vw, 30px) 0 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-accordion .accordion-item {
  border-radius: var(--radius-md);
  border: 1px solid var(--hairline);
  background: var(--ink-700);
  overflow: hidden;
}

.page-faq .faq-q {
  margin: 0;
  font-size: 16px;
}

.page-faq .faq-q-btn {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  width: 100%;
  min-height: 48px;
  padding: 16px 18px;
  border: 0;
  background: transparent;
  text-align: left;
  cursor: pointer;
  color: var(--text);
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  transition: background .22s var(--ease), color .22s var(--ease);
}

.page-faq .faq-q-btn:hover,
.page-faq .faq-q-btn:focus-visible {
  background: rgba(30, 58, 102, .6);
}

.page-faq .faq-q-btn[aria-expanded="true"] {
  color: var(--gold-300);
}

.page-faq .faq-q-num {
  flex: 0 0 auto;
  padding-top: 3px;
  font-size: 13px;
  color: var(--cyan-400);
}

.page-faq .faq-q-btn[aria-expanded="true"] .faq-q-num {
  color: var(--gold-500);
}

.page-faq .faq-q-text {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .faq-panel {
  padding: 0 18px 20px 46px;
  background: transparent;
}

.page-faq .faq-panel p {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-dim);
}

/* ---------- 咨询清单 ---------- */
.page-faq .faq-checklist {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-checklist li {
  position: relative;
  padding-left: 32px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-dim);
}

.page-faq .faq-checklist li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: .56em;
  width: 13px;
  height: 7px;
  border-left: 2px solid var(--gold-500);
  border-bottom: 2px solid var(--gold-500);
  transform: rotate(-45deg);
}

.page-faq .faq-contact-line {
  margin: clamp(20px, 3vw, 28px) 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--text-dim);
}

.page-faq .faq-contact-line .link {
  color: var(--cyan-400);
  text-decoration: none;
  border-bottom: 1px solid rgba(35, 211, 211, .45);
}

.page-faq .faq-contact-line .link:hover,
.page-faq .faq-contact-line .link:focus-visible {
  color: var(--gold-300);
  border-bottom-color: var(--gold-300);
}

.page-faq .faq-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: clamp(22px, 3vw, 30px) 0 0;
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: clamp(22px, 3.2vw, 32px) 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--hairline);
  background: var(--ink-700);
}

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

.page-faq .faq-figure .media-caption {
  padding: 12px 18px 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist-300);
}

/* ---------- 中等宽度：收紧步骤留白 ---------- */
@media (min-width: 600px) {
  .page-faq .faq-step {
    padding-left: 82px;
  }

  .page-faq .faq-panel {
    padding-left: 50px;
  }
}

/* ---------- 桌面：左侧粘性索引 ---------- */
@media (min-width: 980px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(210px, 264px) minmax(0, 1fr);
    gap: clamp(32px, 4.5vw, 56px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 110px;
    padding-right: 6px;
    border-right: 1px solid var(--hairline);
  }

  .page-faq .faq-index-nav {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
    gap: 6px;
  }

  .page-faq .faq-index-link {
    width: 100%;
    white-space: normal;
    border-radius: var(--radius-md);
    background: transparent;
    border-color: transparent;
    font-size: 14px;
    line-height: 1.45;
  }

  .page-faq .faq-index-link[data-spy-current="true"] {
    background: var(--ink-700);
    border-color: var(--hairline);
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-hero h1 {
    max-width: 14ch;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index-link,
  .page-faq .faq-q-btn {
    transition: none;
  }
}