.page-faq {
  background: var(--ag-cream);
  color: var(--ag-body);
}

.page-faq .faq-head {
  padding-top: 20px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: 26px;
  padding-block: 24px 36px;
}

.page-faq .faq-hero__copy h1 {
  margin: 12px 0 16px;
  font-size: clamp(30px, 7.4vw, 50px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--ag-deep);
}

.page-faq .faq-hero__copy .lead {
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--ag-body);
}

.page-faq .faq-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
}

.page-faq .faq-jump__link {
  display: inline-flex;
  align-items: center;
  padding: 7px 12px;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.55);
  color: var(--ag-deep);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  text-decoration: none;
  clip-path: var(--chamfer);
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  background: var(--ag-green);
  border-color: var(--ag-green);
  color: var(--ag-cream);
}

.page-faq .faq-hero__visual {
  margin: 0;
  min-width: 0;
}

.page-faq .faq-hero__visual .media-frame {
  border: 1px solid var(--line-strong);
  background: var(--ag-mist);
  max-width: 100%;
}

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

.page-faq .media-caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--ag-stone);
}

/* ---------- 设备轨迹带 ---------- */
.page-faq .faq-trace {
  background: var(--ag-deep);
  padding: 18px 16px 12px;
  clip-path: var(--chamfer);
}

.page-faq .faq-trace__label {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: rgba(244, 239, 230, 0.7);
}

.page-faq .device-track {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.page-faq .device-track text {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  fill: rgba(244, 239, 230, 0.82);
}

.page-faq .device-track__node {
  fill: rgba(244, 239, 230, 0.08);
  stroke: var(--ag-sand);
  stroke-width: 2;
}

.page-faq .device-track__screen {
  fill: var(--ag-moss);
  opacity: 0.55;
}

.page-faq .device-track__line {
  fill: none;
  stroke: var(--ag-signal);
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-dasharray: 7 9;
  animation: faq-dash 2.8s linear infinite;
}

@keyframes faq-dash {
  to {
    stroke-dashoffset: -64;
  }
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: 26px;
  padding-block: 30px 64px;
}

.page-faq .faq-index {
  border-left: 2px solid var(--ag-green);
  padding-left: 14px;
  min-width: 0;
}

.page-faq .faq-index__label {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--ag-stone);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-index__link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 9px 10px;
  color: var(--ag-deep);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: background 0.18s ease, color 0.18s ease;
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  background: var(--ag-mist);
  color: var(--ag-green);
}

.page-faq .faq-index__num {
  flex: none;
  font-size: 11px;
  color: var(--ag-clay);
  letter-spacing: 0.06em;
}

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

/* ---------- 章节 ---------- */
.page-faq .faq-group {
  scroll-margin-top: calc(var(--frame-top-h) + 24px);
  margin-bottom: 52px;
}

.page-faq .faq-group:last-of-type {
  margin-bottom: 40px;
}

.page-faq .faq-group__head {
  border-top: 2px solid var(--ag-deep);
  padding-top: 16px;
  margin-bottom: 20px;
}

.page-faq .faq-group__head h2 {
  margin: 10px 0 8px;
  font-size: clamp(22px, 4.4vw, 30px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  font-weight: 800;
  color: var(--ag-deep);
}

.page-faq .faq-group__intro {
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ag-stone);
}

.page-faq .index-num {
  display: inline-block;
  border: 1px solid var(--line-strong);
  padding: 2px 8px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--ag-green);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-left: 3px solid var(--ag-moss);
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.page-faq .faq-item[open] {
  border-left-color: var(--ag-signal);
  box-shadow: 0 14px 30px -26px rgba(15, 42, 36, 0.9);
}

.page-faq .faq-item__q {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 14px 15px;
  list-style: none;
  cursor: pointer;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--ag-deep);
}

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

.page-faq .faq-item__q::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--ag-green);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "−";
  color: var(--ag-signal);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--ag-green);
  outline-offset: -4px;
}

.page-faq .faq-item__num {
  flex: none;
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ag-clay);
}

.page-faq .faq-item__a {
  padding: 14px 15px 18px;
  border-top: 1px dashed var(--line);
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--ag-body);
}

.page-faq .faq-item__a p {
  margin: 0 0 12px;
}

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

.page-faq .faq-item__a a {
  color: var(--ag-green);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 步骤 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .faq-steps li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  background: var(--ag-mist);
  padding: 8px 10px;
  font-size: 13.5px;
  line-height: 1.7;
}

.page-faq .faq-step-num {
  flex: none;
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--ag-green);
  color: var(--ag-cream);
  font-size: 11px;
}

/* ---------- 提示块 ---------- */
.page-faq .faq-tip {
  margin: 14px 0 0;
  padding: 10px 12px;
  border-left: 3px solid var(--ag-signal);
  background: rgba(200, 95, 26, 0.08);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--ag-body);
}

.page-faq .faq-tip__label {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ag-signal);
}

/* ---------- 图组 ---------- */
.page-faq .faq-figure {
  margin: 22px 0 0;
}

.page-faq .faq-figure .media-frame {
  border: 1px solid var(--line);
  background: var(--ag-mist);
  max-width: 100%;
}

/* ---------- 数据条 ---------- */
.page-faq .faq-stats {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.page-faq .faq-stat {
  background: var(--ag-deep);
  color: var(--ag-cream);
  padding: 14px 16px;
  clip-path: var(--chamfer);
}

.page-faq .faq-stat__num {
  display: block;
  font-size: clamp(22px, 5vw, 30px);
  line-height: 1.2;
  color: var(--ag-cream);
}

.page-faq .faq-stat__label {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: rgba(244, 239, 230, 0.76);
}

/* ---------- 客服区 ---------- */
.page-faq .faq-help {
  display: grid;
  gap: 20px;
  padding: 22px 18px;
  background: var(--ag-ink);
  color: var(--ag-cream);
  clip-path: var(--chamfer);
}

.page-faq .faq-help__prep-title {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: rgba(244, 239, 230, 0.7);
}

.page-faq .faq-steps--light li {
  background: rgba(244, 239, 230, 0.1);
  color: var(--ag-cream);
}

.page-faq .faq-steps--light .faq-step-num {
  background: var(--ag-signal);
  color: var(--ag-cream);
}

.page-faq .faq-help__row {
  display: grid;
  gap: 2px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(244, 239, 230, 0.2);
}

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

.page-faq .faq-help__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: rgba(244, 239, 230, 0.62);
}

.page-faq .faq-help__value {
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  color: var(--ag-cream);
  word-break: break-word;
}

.page-faq .faq-help__note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.85;
  color: rgba(244, 239, 230, 0.8);
}

.page-faq .faq-help__note a {
  color: var(--ag-sand);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 延伸阅读 ---------- */
.page-faq .faq-related {
  border-top: 2px solid var(--ag-deep);
  padding-top: 18px;
}

.page-faq .faq-related__title {
  margin: 0 0 14px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ag-deep);
}

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

.page-faq .faq-related__link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 12px 14px;
  border: 1px solid var(--line);
  background: rgba(226, 230, 223, 0.55);
  color: var(--ag-deep);
  font-size: 14px;
  line-height: 1.7;
  text-decoration: none;
  transition: background 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-related__link:hover,
.page-faq .faq-related__link:focus-visible {
  background: var(--ag-mist);
  border-color: var(--ag-green);
}

.page-faq .faq-related__arrow {
  flex: none;
  color: var(--ag-signal);
  font-size: 13px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding-block: 28px 44px;
  }

  .page-faq .faq-trace {
    padding: 22px 26px 14px;
  }

  .page-faq .faq-help {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 26px;
    padding: 26px 24px;
  }

  .page-faq .faq-related__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 940px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: center;
    gap: 46px;
    padding-block: 34px 54px;
  }

  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 46px;
    padding-block: 36px 80px;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--frame-top-h) + 28px);
    align-self: start;
  }

  .page-faq .faq-group {
    margin-bottom: 64px;
  }

  .page-faq .faq-item__q {
    padding: 16px 20px;
    font-size: 15.5px;
  }

  .page-faq .faq-item__a {
    padding: 16px 20px 20px;
  }

  .page-faq .faq-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-width: 560px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .device-track__line {
    animation: none;
  }

  .page-faq .faq-jump__link,
  .page-faq .faq-item,
  .page-faq .faq-index__link,
  .page-faq .faq-related__link {
    transition: none;
  }
}