.page-faq {
  --faq-tone: var(--gold);
  --faq-rule: rgba(30, 50, 67, 0.85);
  --faq-grid: rgba(30, 50, 67, 0.38);
  --faq-body: rgba(237, 228, 211, 0.74);
}

.page-faq section[id],
.page-faq [id] {
  scroll-margin-top: calc(var(--header-h) + 28px);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-top: calc(var(--header-h) + clamp(48px, 8vw, 112px));
  padding-bottom: clamp(48px, 7vw, 96px);
  background-color: var(--ink-deep);
  background-image:
    repeating-linear-gradient(90deg, var(--faq-grid) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, var(--faq-grid) 0 1px, transparent 1px 72px),
    radial-gradient(120% 90% at 8% 0%, rgba(11, 27, 43, 0.4) 0%, rgba(7, 16, 24, 0.98) 68%);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), rgba(176, 138, 62, 0));
  opacity: 0.7;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .breadcrumb {
  margin: 0 0 clamp(26px, 4.5vw, 54px);
}

.page-faq .faq-hero .breadcrumb ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
}

.page-faq .faq-hero .breadcrumb li {
  font-size: var(--fs-12);
  letter-spacing: 0.06em;
  color: var(--gray);
}

.page-faq .faq-hero .breadcrumb li + li::before {
  content: "／";
  margin: 0 8px;
  color: rgba(124, 139, 153, 0.5);
}

.page-faq .faq-hero .breadcrumb a {
  color: var(--gray);
  text-decoration: none;
  border-bottom: 1px solid rgba(124, 139, 153, 0.35);
  padding-bottom: 1px;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .faq-hero .breadcrumb a:hover,
.page-faq .faq-hero .breadcrumb a:focus-visible {
  color: var(--gold-bright);
  border-color: var(--gold-bright);
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 clamp(18px, 3vw, 30px);
  font-size: var(--fs-12);
  letter-spacing: 0.24em;
  color: var(--gold-bright);
}

.page-faq .faq-hero__title {
  margin: 0 0 clamp(18px, 2.6vw, 30px);
  max-width: 17em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.1rem, 6.6vw, 5rem);
  line-height: 1.06;
  letter-spacing: 0.01em;
  color: var(--paper);
}

.page-faq .faq-hero__lead {
  margin: 0 0 clamp(28px, 3.6vw, 44px);
  max-width: 36em;
  font-size: var(--fs-18);
  line-height: 1.85;
  color: var(--faq-body);
}

.page-faq .faq-hero__meta {
  list-style: none;
  margin: 0;
  padding: 20px 0 0;
  max-width: 60em;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 32px;
  border-top: 1px solid var(--faq-rule);
  font-size: var(--fs-14);
  color: var(--gray);
}

.page-faq .faq-hero__meta li {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .faq-hero__meta .mono {
  font-size: var(--fs-18);
  color: var(--gold-bright);
  letter-spacing: 0.04em;
}

/* ---------- 快速分流 ---------- */

.page-faq .faq-router-section {
  padding-top: clamp(48px, 7vw, 96px);
}

.page-faq .faq-router-section .section-head {
  margin-bottom: clamp(28px, 4vw, 52px);
}

.page-faq .faq-router {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}

.page-faq .faq-router__list {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 28px;
}

.page-faq .faq-router__list::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 1.8em;
  bottom: 1.8em;
  width: 1px;
  background: linear-gradient(180deg, var(--gold), rgba(176, 138, 62, 0.12));
}

.page-faq .faq-router__item {
  position: relative;
}

.page-faq .faq-router__item + .faq-router__item {
  margin-top: 10px;
}

.page-faq .faq-router__item::before {
  content: "";
  position: absolute;
  left: -21px;
  top: 1.7em;
  width: 14px;
  height: 1px;
  background: var(--gold);
  opacity: 0.75;
}

.page-faq .faq-router__item::after {
  content: "";
  position: absolute;
  left: -25px;
  top: calc(1.7em - 3px);
  width: 7px;
  height: 7px;
  box-sizing: border-box;
  border: 1px solid var(--gold);
  background: var(--ink-deep);
  transform: rotate(45deg);
}

.page-faq .faq-router__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "num label"
    "num desc";
  gap: 3px 16px;
  padding: 15px 20px;
  border: 1px solid var(--faq-rule);
  border-radius: var(--radius);
  background-color: rgba(7, 16, 24, 0.5);
  color: inherit;
  text-decoration: none;
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease), background-color 0.28s var(--ease);
}

.page-faq .faq-router__link:hover,
.page-faq .faq-router__link:focus-visible {
  border-color: var(--gold);
  background-color: rgba(176, 138, 62, 0.08);
  transform: translateX(4px);
}

.page-faq .faq-router__link:focus-visible {
  outline: 2px solid var(--gold-bright);
  outline-offset: 2px;
}

.page-faq .faq-router__num {
  grid-area: num;
  padding-top: 3px;
  font-size: var(--fs-14);
  letter-spacing: 0.08em;
  color: var(--gold-bright);
}

.page-faq .faq-router__label {
  grid-area: label;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-18);
  color: var(--paper);
  line-height: 1.5;
}

.page-faq .faq-router__desc {
  grid-area: desc;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--gray);
}

.page-faq .faq-router__figure {
  margin: 0;
  border: 1px solid var(--faq-rule);
  border-radius: var(--radius);
  overflow: hidden;
  background-color: var(--ink-deep);
}

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

/* ---------- 线索横幅 ---------- */

.page-faq .faq-band {
  padding-block: clamp(36px, 5.5vw, 76px);
}

.page-faq .faq-band__figure {
  margin: 0;
  border-top: 1px solid var(--gold);
  padding-top: clamp(20px, 2.6vw, 32px);
}

.page-faq .faq-band__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--faq-rule);
  border-radius: var(--radius);
}

.page-faq .faq-band__figure .figure-cap {
  margin-top: 14px;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--gray);
}

/* ---------- 问题组 ---------- */

.page-faq .faq-group {
  padding-block: clamp(44px, 6.5vw, 92px);
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-group--route   { --faq-tone: var(--jade); }
.page-faq .faq-group--hall    { --faq-tone: var(--gold); }
.page-faq .faq-group--limit   { --faq-tone: var(--cinnabar); }
.page-faq .faq-group--rounds  { --faq-tone: var(--gray); }
.page-faq .faq-group--android { --faq-tone: var(--gold-bright); }

.page-faq .faq-group__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 44px);
}

.page-faq .faq-group__head {
  padding-top: 22px;
  border-top: 2px solid var(--faq-tone);
}

.page-faq .faq-group__index {
  margin: 0;
  font-size: var(--fs-12);
  letter-spacing: 0.22em;
  color: var(--faq-tone);
}

.page-faq .faq-group__title {
  margin: 12px 0 14px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.4vw, var(--fs-32));
  line-height: 1.32;
  color: var(--paper);
}

.page-faq .faq-group__note {
  margin: 0;
  max-width: 28em;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: var(--gray);
}

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

/* 折叠问答条目 */

.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-item:first-child {
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 4px 18px 0;
  list-style: none;
  cursor: pointer;
  font-size: var(--fs-16);
  font-weight: 500;
  line-height: 1.7;
  color: var(--paper);
  transition: color 0.24s 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 {
  color: var(--gold-bright);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--gold-bright);
  outline-offset: 3px;
  box-shadow: 0 0 0 1px rgba(62, 124, 107, 0.75) inset;
}

.page-faq .faq-item__mark {
  flex: none;
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--faq-tone);
}

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

.page-faq .faq-item__q::after {
  content: "＋";
  flex: none;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--fs-24);
  line-height: 1;
  color: var(--faq-tone);
  transition: transform 0.28s var(--ease);
}

.page-faq .faq-item[open] > .faq-item__q::after {
  content: "－";
}

.page-faq .faq-item__a {
  margin-left: 4px;
  padding: 2px 0 26px 30px;
  border-left: 2px solid transparent;
  transition: border-color 0.3s var(--ease);
}

.page-faq .faq-item[open] .faq-item__a {
  border-left-color: var(--jade);
  animation: faqAnswerIn 0.32s var(--ease) both;
}

@keyframes faqAnswerIn {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .faq-item__a p {
  margin: 0 0 12px;
  max-width: 40em;
  font-size: var(--fs-16);
  line-height: 1.88;
  color: var(--faq-body);
}

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

.page-faq .faq-item__a a {
  color: var(--gold-bright);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(216, 178, 94, 0.45);
  transition: text-decoration-color 0.24s var(--ease);
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-item__a a:focus-visible {
  text-decoration-color: var(--gold-bright);
}

.page-faq .faq-steps {
  list-style: none;
  margin: 16px 0 18px;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  font-size: var(--fs-14);
  line-height: 1.78;
  color: rgba(237, 228, 211, 0.68);
}

.page-faq .faq-steps__num {
  padding-top: 0.26em;
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  white-space: nowrap;
  color: var(--faq-tone);
}

/* ---------- 自查清单 ---------- */

.page-faq .faq-checklist {
  padding-block: clamp(48px, 7vw, 96px);
  background-color: var(--paper-white);
  color: var(--ink);
}

.page-faq .faq-checklist__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
}

.page-faq .faq-checklist__index {
  margin: 0;
  font-size: var(--fs-12);
  letter-spacing: 0.22em;
  color: var(--cinnabar);
}

.page-faq .faq-checklist__title {
  margin: 12px 0 16px;
  max-width: 20em;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.6vw, 2rem);
  line-height: 1.36;
  color: var(--ink);
}

.page-faq .faq-checklist__note {
  margin: 0;
  max-width: 40em;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: rgba(11, 27, 43, 0.66);
}

.page-faq .faq-checklist__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-checklist__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 18px;
  padding: 16px 0;
  border-top: 1px solid rgba(11, 27, 43, 0.16);
}

.page-faq .faq-checklist__item:last-child {
  border-bottom: 1px solid rgba(11, 27, 43, 0.16);
}

.page-faq .faq-checklist__num {
  padding-top: 3px;
  font-size: var(--fs-14);
  letter-spacing: 0.08em;
  color: var(--cinnabar);
}

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

.page-faq .faq-checklist__label {
  margin: 0 0 4px;
  font-size: var(--fs-16);
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
}

.page-faq .faq-checklist__desc {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.78;
  color: rgba(11, 27, 43, 0.68);
}

.page-faq .faq-checklist__foot {
  grid-column: 1 / -1;
  margin: 0;
  padding-top: 8px;
  font-size: var(--fs-14);
  line-height: 1.85;
  color: rgba(11, 27, 43, 0.7);
}

.page-faq .faq-checklist__foot a {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--cinnabar);
}

.page-faq .faq-checklist__foot a:hover,
.page-faq .faq-checklist__foot a:focus-visible {
  color: var(--cinnabar);
}

/* ---------- 断点 ---------- */

@media (min-width: 760px) {
  .page-faq .faq-checklist__item {
    padding: 18px 0;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-router {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(36px, 5vw, 72px);
  }

  .page-faq .faq-checklist__inner {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-group__inner {
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 80px);
  }

  .page-faq .faq-group__head {
    position: sticky;
    top: calc(var(--header-h) + 32px);
    align-self: start;
  }
}

@media (max-width: 480px) {
  .page-faq .faq-hero__meta {
    gap: 10px 20px;
    font-size: var(--fs-12);
  }

  .page-faq .faq-router__list {
    padding-left: 22px;
  }

  .page-faq .faq-router__item::before {
    left: -17px;
    width: 10px;
  }

  .page-faq .faq-router__item::after {
    left: -21px;
  }

  .page-faq .faq-item__a {
    padding-left: 20px;
  }

  .page-faq .faq-item__q {
    gap: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-router__link,
  .page-faq .faq-item__q::after,
  .page-faq .faq-item__a {
    transition: none;
  }

  .page-faq .faq-item[open] .faq-item__a {
    animation: none;
  }
}