.page-faq {
  display: block;
}

/* ================= 首屏 ================= */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  padding: clamp(24px, 4vw, 44px) 0 clamp(32px, 5vw, 60px);
  border-bottom: 2px solid var(--ink);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -96px;
  right: -130px;
  width: min(680px, 84vw);
  height: min(360px, 50vw);
  background: var(--season);
  opacity: 0.15;
  transform: rotate(-11deg);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  left: -54px;
  bottom: 42px;
  width: min(150px, 26vw);
  height: min(150px, 26vw);
  background: var(--season-2);
  opacity: 0.28;
  transform: rotate(9deg);
}

.page-faq .faq-crumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 22px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
}

.page-faq .faq-crumb a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--season);
  padding-bottom: 1px;
}

.page-faq .faq-crumb a:hover {
  background: var(--season-2);
}

.page-faq .faq-crumb [aria-current="page"] {
  color: var(--seal);
}

.page-faq .faq-hero__title {
  max-width: 16em;
  margin: 12px 0 22px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 6vw, 58px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-faq .faq-hero__title mark {
  background: linear-gradient(transparent 62%, var(--season-2) 62%);
  color: inherit;
  padding: 0 0.06em;
}

.page-faq .faq-hero__lead {
  max-width: 44em;
  margin: 0 0 clamp(26px, 4vw, 40px);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-faq .faq-hero__figure {
  margin: 0;
  border: 2px solid var(--ink);
  background: var(--paper-2);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-hero__media {
  overflow: hidden;
  background: var(--paper-3);
}

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

@media (min-width: 900px) {
  .page-faq .faq-hero__media img {
    height: clamp(260px, 28vw, 380px);
  }
}

/* ================= 主体 ================= */
.page-faq .faq-body {
  padding: clamp(32px, 5vw, 64px) 0 clamp(38px, 6vw, 72px);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 44px);
}

@media (min-width: 980px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(228px, 28%) minmax(0, 1fr);
    gap: clamp(36px, 4.5vw, 64px);
    align-items: start;
  }
}

.page-faq .faq-rail {
  display: flex;
  flex-direction: column;
  gap: 24px;
  min-width: 0;
}

@media (min-width: 980px) {
  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 20px);
    max-height: calc(100vh - var(--header-h) - 44px);
    overflow-y: auto;
    padding-right: 8px;
    scrollbar-width: thin;
    scrollbar-color: var(--line) transparent;
  }
}

.page-faq .faq-rail__block {
  display: flex;
  flex-direction: column;
}

/* ---- 筛选按钮 ---- */
.page-faq .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.page-faq .filter-btn {
  padding: 8px 11px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1;
  letter-spacing: 0.03em;
  color: var(--ink);
  background: var(--paper);
  border: 2px solid var(--ink);
  box-shadow: 3px 3px 0 var(--ink);
  cursor: pointer;
  transition: transform 0.16s ease, box-shadow 0.16s ease, background-color 0.16s ease, color 0.16s ease;
}

.page-faq .filter-btn:hover {
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 var(--ink);
}

.page-faq .filter-btn:focus-visible {
  outline: 2px dashed var(--seal);
  outline-offset: 3px;
}

.page-faq .filter-btn.is-active {
  background: var(--season);
  color: var(--season-on);
}

/* ---- 索引 ---- */
.page-faq .faq-index {
  display: none;
}

@media (min-width: 980px) {
  .page-faq .faq-index {
    display: flex;
    flex-direction: column;
    gap: 18px;
    padding-top: 18px;
    border-top: 2px solid var(--ink);
  }
}

.page-faq .faq-index__group {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.page-faq .faq-index__label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
}

.page-faq .faq-index__label::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: var(--line);
}

.page-faq .faq-index__link {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 4px 6px 4px 8px;
  border-left: 3px solid transparent;
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-soft);
  text-decoration: none;
  transition: color 0.15s ease, border-color 0.15s ease, background-color 0.15s ease;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--ink);
  border-left-color: var(--seal);
  background: var(--paper-2);
}

.page-faq .faq-index__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--seal);
}

/* ---- 问答列表 ---- */
.page-faq .faq-list {
  display: flex;
  flex-direction: column;
  gap: clamp(16px, 2.2vw, 24px);
  min-width: 0;
}

.page-faq .faq-q {
  border: 2px solid var(--ink);
  background: var(--paper);
  box-shadow: var(--shadow-soft);
  transition: box-shadow 0.18s ease;
}

.page-faq .faq-q[open] {
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-q__summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

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

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

.page-faq .faq-q__num {
  flex: none;
  min-width: 2.2em;
  padding: 4px 6px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 600;
  line-height: 1.3;
  text-align: center;
  color: var(--paper);
  background: var(--ink);
  border-bottom: 3px solid var(--season);
}

.page-faq .faq-q__head {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
}

.page-faq .faq-q__cat {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
}

.page-faq .faq-q__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(16px, 1.8vw, 19px);
  line-height: 1.45;
  letter-spacing: -0.005em;
  color: var(--ink);
}

.page-faq .faq-q__sign {
  position: relative;
  flex: none;
  align-self: flex-start;
  margin-top: 2px;
  margin-left: auto;
  width: 24px;
  height: 24px;
  border: 2px solid var(--ink);
  background: var(--paper);
  transition: background-color 0.18s ease;
}

.page-faq .faq-q__sign::before,
.page-faq .faq-q__sign::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--ink);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.page-faq .faq-q__sign::before {
  width: 11px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-q__sign::after {
  width: 2px;
  height: 11px;
  transform: translate(-50%, -50%);
}

.page-faq .faq-q[open] .faq-q__sign {
  background: var(--season-2);
}

.page-faq .faq-q[open] .faq-q__sign::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .faq-q__body {
  margin: 0 18px 18px;
  padding: 2px 0 0 16px;
  border-left: 3px solid var(--season);
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

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

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

.page-faq .faq-q__link {
  display: inline-block;
  margin-top: 6px;
  padding-bottom: 1px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--seal);
  text-decoration: none;
  border-bottom: 2px solid var(--seal);
}

.page-faq .faq-q__link:hover {
  background: var(--paper-2);
}

.page-faq .faq-q[data-seasons~="spring"] .faq-q__num { border-bottom-color: var(--spring); }
.page-faq .faq-q[data-seasons~="summer"] .faq-q__num { border-bottom-color: var(--summer); }
.page-faq .faq-q[data-seasons~="autumn"] .faq-q__num { border-bottom-color: var(--autumn); }
.page-faq .faq-q[data-seasons~="winter"] .faq-q__num { border-bottom-color: var(--winter); }

.page-faq .faq-q[data-seasons~="spring"] .faq-q__body { border-left-color: var(--spring); }
.page-faq .faq-q[data-seasons~="summer"] .faq-q__body { border-left-color: var(--summer); }
.page-faq .faq-q[data-seasons~="autumn"] .faq-q__body { border-left-color: var(--autumn); }
.page-faq .faq-q[data-seasons~="winter"] .faq-q__body { border-left-color: var(--winter); }

.page-faq .is-filtered-out {
  display: none !important;
}

/* ================= 流程 ================= */
.page-faq .faq-flow {
  padding: 0 0 clamp(30px, 5vw, 56px);
}

.page-faq .faq-flow__inner {
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
  padding: clamp(22px, 3.4vw, 40px);
  border: 2px solid var(--ink);
  background: var(--paper-2);
  box-shadow: var(--shadow-hard);
}

@media (min-width: 880px) {
  .page-faq .faq-flow__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
  }
}

.page-faq .faq-flow__title {
  margin: 10px 0 22px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.25;
  color: var(--ink);
}

.page-faq .faq-flow__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-faq .faq-flow__step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 14px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-flow__step:first-child {
  padding-top: 0;
  border-top: none;
}

.page-faq .faq-flow__num {
  grid-row: 1 / span 2;
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--seal);
}

.page-faq .faq-flow__step-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15.5px;
  line-height: 1.5;
  color: var(--ink);
}

.page-faq .faq-flow__step-text {
  grid-column: 2;
  margin: 2px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-faq .faq-flow__figure {
  margin: 0;
  border: 2px solid var(--ink);
  background: var(--paper);
  box-shadow: 4px 4px 0 var(--ink);
}

.page-faq .faq-flow__media {
  overflow: hidden;
  background: var(--paper-3);
}

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

@media (min-width: 880px) {
  .page-faq .faq-flow__media img {
    height: 300px;
  }
}

/* ================= 联络卡 ================= */
.page-faq .faq-cta {
  padding: 0 0 clamp(50px, 7vw, 92px);
}

.page-faq .faq-cta__card {
  display: grid;
  gap: clamp(22px, 3vw, 36px);
  padding: clamp(24px, 3.6vw, 46px);
  border: 2px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
}

@media (min-width: 820px) {
  .page-faq .faq-cta__card {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    align-items: end;
  }
}

.page-faq .faq-cta__title {
  margin: 10px 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 36px);
  line-height: 1.2;
  color: var(--paper);
}

.page-faq .faq-cta__text {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--paper-3);
}

.page-faq .faq-cta__actions {
  margin-top: 22px;
}

.page-faq .faq-cta__card .btn {
  box-shadow: 4px 4px 0 var(--paper);
}

.page-faq .faq-cta__meta {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
}

.page-faq .faq-cta__row {
  display: grid;
  grid-template-columns: 5.6em minmax(0, 1fr);
  gap: 4px 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(244, 239, 230, 0.22);
}

.page-faq .faq-cta__row:first-child {
  padding-top: 0;
  border-top: none;
}

.page-faq .faq-cta__meta dt {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--paper-3);
}

.page-faq .faq-cta__meta dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--paper);
  overflow-wrap: anywhere;
  word-break: break-word;
}

/* ================= 窄屏保护 ================= */
@media (max-width: 600px) {
  .page-faq .faq-q__summary {
    gap: 10px;
    padding: 14px 14px;
  }

  .page-faq .faq-q__body {
    margin: 0 14px 16px;
    padding-left: 13px;
  }

  .page-faq .faq-q__sign {
    width: 22px;
    height: 22px;
  }

  .page-faq .faq-index {
    display: none;
  }
}

/* ================= 减弱动效 ================= */
@media (prefers-reduced-motion: reduce) {
  .page-faq .filter-btn,
  .page-faq .faq-q,
  .page-faq .faq-q__sign,
  .page-faq .faq-q__sign::before,
  .page-faq .faq-q__sign::after,
  .page-faq .faq-index__link {
    transition: none;
  }

  .page-faq .filter-btn:hover {
    transform: none;
    box-shadow: 3px 3px 0 var(--ink);
  }
}