.page-faq {
  --faq-line: rgba(195, 203, 221, .16);
  --faq-soft: rgba(124, 92, 255, .12);
  --faq-tone: var(--violet);
  overflow-x: hidden;
}

/* ---------- 外壳与索引轨道 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--pad);
}

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

.page-faq .faq-rail .rail-nav {
  position: sticky;
  top: calc(var(--header-h) + 22px);
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 6px 0;
}

.page-faq .rail-link {
  display: block;
  padding: 7px 8px 7px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.4;
  letter-spacing: .02em;
  color: var(--silver);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 200ms var(--ease), border-color 240ms var(--ease), background-color 200ms var(--ease);
}

.page-faq .rail-link:hover {
  color: var(--white);
  background: rgba(124, 92, 255, .1);
}

.page-faq .rail-link[aria-current="true"] {
  color: var(--violet);
  border-left-color: var(--violet);
}

.page-faq .faq-body {
  grid-column: 1;
  min-width: 0;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(118px, 16vw, 176px) 0 clamp(44px, 6vw, 76px);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: clamp(96px, 13vw, 150px);
  right: 0;
  width: 8px;
  height: clamp(90px, 13vw, 170px);
  background: repeating-linear-gradient(to bottom, var(--rail) 0 1px, transparent 1px 13px);
  opacity: .85;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 88px;
  height: 3px;
  background: var(--violet);
}

.page-faq .faq-hero-title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(46px, 10vw, 116px);
  line-height: .92;
  letter-spacing: -.025em;
  color: var(--white);
}

.page-faq .faq-hero-lede {
  max-width: 62ch;
  margin: 26px 0 0;
  font-family: var(--font-serif);
  font-size: clamp(16.5px, 1.5vw, 20px);
  line-height: 1.78;
  color: var(--silver);
}

.page-faq .faq-hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 30px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
  font-size: 14px;
  line-height: 1.6;
  color: var(--silver);
}

.page-faq .faq-hero-facts .mono {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 14px;
}

/* ---------- 章节 ---------- */
.page-faq .faq-section {
  padding: clamp(52px, 7vw, 98px) 0;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-section:last-of-type {
  border-bottom: 0;
  padding-bottom: clamp(56px, 8vw, 110px);
}

.page-faq .faq-section .section-head {
  position: relative;
  padding-left: 18px;
}

.page-faq .faq-section .section-head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 3px;
  background: var(--faq-tone);
}

.page-faq .faq-section .section-no {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--faq-tone);
}

.page-faq .faq-section .section-title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(27px, 4.4vw, 54px);
  line-height: 1.06;
  letter-spacing: -.015em;
  color: var(--white);
}

.page-faq .faq-section .section-lede {
  max-width: 68ch;
  margin: 16px 0 0;
  font-family: var(--font-serif);
  font-size: clamp(15.5px, 1.3vw, 18px);
  line-height: 1.8;
  color: var(--silver);
}

.page-faq .faq-section--triage { --faq-tone: var(--violet); }
.page-faq .faq-section--warranty { --faq-tone: var(--amber); }
.page-faq .faq-section--logistics { --faq-tone: var(--cyan); }
.page-faq .faq-section--terms { --faq-tone: var(--violet); }
.page-faq .faq-section--models { --faq-tone: var(--celadon); }
.page-faq .faq-section--desk { --faq-tone: var(--violet); }

/* ---------- 分组定位 ---------- */
.page-faq .faq-triage {
  margin-top: clamp(26px, 3.4vw, 44px);
}

.page-faq .faq-triage-map {
  display: none;
  width: 100%;
  height: 72px;
  overflow: visible;
}

.page-faq .faq-triage-map path {
  fill: none;
  stroke: var(--rail);
  stroke-width: 1.5;
  vector-effect: non-scaling-stroke;
}

.page-faq .faq-triage-map circle {
  fill: var(--violet);
}

.page-faq .faq-triage-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--faq-line);
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-triage-item {
  min-width: 0;
}

.page-faq .faq-triage-link {
  display: flex;
  flex-direction: column;
  gap: 7px;
  height: 100%;
  padding: 20px 18px 22px;
  background: var(--ink);
  text-decoration: none;
  border-top: 2px solid transparent;
  transition: background-color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-faq .faq-triage-link:hover,
.page-faq .faq-triage-link:focus-visible {
  background: var(--panel);
  border-top-color: var(--faq-tone);
}

.page-faq .faq-triage-no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--silver);
}

.page-faq .faq-triage-item:nth-child(1) .faq-triage-no { color: var(--amber); }
.page-faq .faq-triage-item:nth-child(2) .faq-triage-no { color: var(--cyan); }
.page-faq .faq-triage-item:nth-child(3) .faq-triage-no { color: var(--violet); }
.page-faq .faq-triage-item:nth-child(4) .faq-triage-no { color: var(--celadon); }

.page-faq .faq-triage-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 21px;
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--white);
}

.page-faq .faq-triage-desc {
  font-size: 13.5px;
  line-height: 1.68;
  color: var(--silver);
}

/* ---------- 质保配图 ---------- */
.page-faq .faq-figure {
  margin: clamp(26px, 3.4vw, 42px) 0 0;
  border: 1px solid var(--rail);
  background: var(--panel);
  overflow: hidden;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(.82) contrast(1.04);
}

.page-faq .faq-figure-cap {
  padding: 12px 16px 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.7;
  letter-spacing: .02em;
  color: var(--silver);
  border-top: 1px solid var(--faq-line);
}

/* ---------- 可展开问答 ---------- */
.page-faq .faq-disclosure {
  margin-top: clamp(26px, 3.2vw, 40px);
  border-top: 1px solid var(--faq-line);
}

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

.page-faq .faq-disclosure .faq-q-head {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-faq .faq-disclosure .disclosure-toggle {
  display: flex;
  align-items: baseline;
  gap: 14px;
  width: 100%;
  padding: 20px 4px 20px 2px;
  background: none;
  border: 0;
  color: var(--white);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: background-color 180ms var(--ease);
}

.page-faq .faq-disclosure .disclosure-toggle:hover,
.page-faq .faq-disclosure .disclosure-toggle:focus-visible {
  background: rgba(124, 92, 255, .07);
}

.page-faq .faq-q-no {
  flex: 0 0 auto;
  min-width: 52px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--faq-tone);
}

.page-faq .faq-q-text {
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--font-body);
  font-size: clamp(15.5px, 1.4vw, 18px);
  font-weight: 600;
  line-height: 1.55;
  transition: color 180ms var(--ease);
}

.page-faq .faq-disclosure .disclosure-toggle:hover .faq-q-text {
  color: var(--faq-tone);
}

.page-faq .faq-disclosure .disclosure-arrow {
  flex: 0 0 auto;
  align-self: center;
  margin-left: 6px;
  transition: transform 220ms var(--ease);
}

.page-faq .faq-disclosure .disclosure-item[data-open="true"] .disclosure-arrow {
  transform: rotate(180deg);
}

.page-faq .faq-disclosure .disclosure-panel {
  overflow: hidden;
}

.page-faq .faq-disclosure .disclosure-inner {
  padding: 2px 6px 26px 20px;
  margin-left: 2px;
  border-left: 2px solid transparent;
  transition: border-color 220ms var(--ease);
}

.page-faq .faq-disclosure .disclosure-item[data-open="true"] .disclosure-inner {
  border-left-color: var(--faq-tone);
}

.page-faq .faq-a p {
  max-width: 66ch;
  margin: 0;
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--silver);
}

.page-faq .faq-a p + p {
  margin-top: 12px;
}

/* ---------- 工单入口 ---------- */
.page-faq .faq-desk {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  margin-top: clamp(28px, 4vw, 48px);
  border: 1px solid rgba(124, 92, 255, .5);
  background:
    linear-gradient(158deg, rgba(124, 92, 255, .3), rgba(11, 16, 48, .2) 58%),
    var(--panel);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-desk-visual {
  overflow: hidden;
  background: var(--ink);
}

.page-faq .faq-desk-visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: 210px;
  object-fit: cover;
  object-position: center 30%;
  filter: saturate(.78) contrast(1.05);
}

.page-faq .faq-desk-body {
  padding: clamp(24px, 4vw, 46px);
  min-width: 0;
}

.page-faq .faq-desk-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-desk-body h3 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 2.8vw, 36px);
  line-height: 1.14;
  letter-spacing: -.012em;
  color: var(--white);
}

.page-faq .faq-desk-copy {
  max-width: 58ch;
  margin: 16px 0 0;
  font-family: var(--font-body);
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--silver);
}

.page-faq .faq-desk-need {
  display: grid;
  gap: 9px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-desk-need li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--silver);
}

.page-faq .faq-desk-need li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 10px;
  height: 1px;
  background: var(--violet);
}

.page-faq .faq-desk-contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  margin: 28px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid rgba(195, 203, 221, .2);
}

.page-faq .faq-desk-contact dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--violet);
}

.page-faq .faq-desk-contact dd {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--white);
  overflow-wrap: anywhere;
}

.page-faq .faq-desk-contact dd.mono {
  font-family: var(--font-mono);
  font-size: 14.5px;
  letter-spacing: 0;
}

.page-faq .faq-desk-note {
  max-width: 58ch;
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--silver);
}

.page-faq .faq-desk-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-triage-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-desk-contact {
    grid-template-columns: max-content minmax(0, 1fr);
    gap: 4px 20px;
  }

  .page-faq .faq-desk-contact dt {
    padding-top: 3px;
  }

  .page-faq .faq-desk-contact dd {
    margin-bottom: 8px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-triage-map {
    display: block;
  }

  .page-faq .faq-triage-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    border-top: 0;
  }

  .page-faq .faq-desk {
    grid-template-columns: 290px minmax(0, 1fr);
  }

  .page-faq .faq-desk-visual img {
    height: 100%;
    min-height: 320px;
  }

  .page-faq .faq-disclosure .disclosure-toggle {
    padding: 22px 4px 22px 2px;
  }

  .page-faq .faq-disclosure .disclosure-inner {
    padding-bottom: 30px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-shell {
    grid-template-columns: 76px minmax(0, 1fr);
    gap: clamp(28px, 3vw, 60px);
  }

  .page-faq .faq-rail {
    display: block;
    grid-column: 1;
    border-right: 1px solid var(--faq-line);
    padding-right: 10px;
  }

  .page-faq .faq-body {
    grid-column: 2;
  }

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

@media (min-width: 1280px) {
  .page-faq .faq-hero {
    padding-right: 40px;
  }

  .page-faq .faq-desk {
    grid-template-columns: 340px minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-triage-link,
  .page-faq .rail-link,
  .page-faq .faq-disclosure .disclosure-toggle,
  .page-faq .faq-disclosure .disclosure-arrow,
  .page-faq .faq-disclosure .disclosure-inner,
  .page-faq .faq-q-text {
    transition: none;
  }

  .page-faq .faq-disclosure .disclosure-item[data-open="true"] .disclosure-arrow {
    transform: none;
  }
}