.page-faq {
  --faq-rule: rgba(11, 27, 51, 0.12);
  --faq-focus: #FF6A00;
  display: block;
  padding-top: clamp(84px, 10vw, 112px);
  background: var(--sand);
  color: var(--navy);
}

/* ---------- 面包屑 ---------- */

.page-faq .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-bottom: 14px;
  font-size: 14px;
  color: var(--slate);
}

.page-faq .crumbs a {
  color: var(--slate);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-faq .crumbs a:hover {
  color: var(--sun-orange);
  border-bottom-color: var(--sun-orange);
}

.page-faq .crumbs a:focus-visible {
  outline: 2px solid var(--faq-focus);
  outline-offset: 3px;
  border-radius: 4px;
}

.page-faq .crumbs__sep {
  color: rgba(90, 107, 124, 0.55);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: clamp(30px, 5vw, 56px) 0 clamp(46px, 7vw, 82px);
  background:
    radial-gradient(1080px 520px at 86% -14%, rgba(255, 106, 0, 0.22), transparent 62%),
    radial-gradient(680px 420px at 2% 112%, rgba(255, 176, 32, 0.22), transparent 60%),
    var(--sand);
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 20px;
  max-width: 18ch;
  font-size: clamp(32px, 5.4vw, 62px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--navy);
}

.page-faq .faq-hero .lede {
  max-width: 40ch;
  font-size: 17px;
  line-height: 1.78;
  color: var(--slate);
}

.page-faq .faq-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-fact {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 16px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(11, 27, 51, 0.1);
  font-size: 14px;
  color: var(--slate);
}

.page-faq .faq-fact .mono {
  font-size: 20px;
  font-weight: 700;
  color: var(--sun-orange);
}

.page-faq .faq-hero__orbit svg {
  display: block;
  width: 100%;
  max-width: 280px;
  height: auto;
  margin: 0 auto;
}

/* ---------- 五类问题索引 ---------- */

.page-faq .faq-index {
  padding: clamp(48px, 7vw, 88px) 0;
  background: var(--paper);
}

.page-faq .faq-index__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}

.page-faq .faq-index__main .section-head {
  margin-bottom: 8px;
}

.page-faq .faq-index__list {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--faq-rule);
}

.page-faq .faq-index__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "no label"
    ". hint";
  gap: 2px 16px;
  padding: 18px 16px 18px 14px;
  border-bottom: 1px solid var(--faq-rule);
  border-left: 3px solid transparent;
  text-decoration: none;
  transition: background-color 0.18s var(--ease), border-color 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-faq .faq-index__item:hover {
  background: var(--sand);
  border-left-color: var(--sun-orange);
  transform: translateX(4px);
}

.page-faq .faq-index__item:focus-visible {
  outline: 3px solid var(--faq-focus);
  outline-offset: 2px;
  border-radius: 6px;
}

.page-faq .faq-index__no {
  grid-area: no;
  padding-top: 5px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--sun-orange);
}

.page-faq .faq-index__label {
  grid-area: label;
  font-size: clamp(18px, 2.4vw, 22px);
  font-weight: 800;
  line-height: 1.35;
  color: var(--navy);
}

.page-faq .faq-index__hint {
  grid-area: hint;
  font-size: 15px;
  line-height: 1.65;
  color: var(--slate);
}

.page-faq .faq-index__figure {
  margin: 0;
  border-radius: var(--radius-l);
  overflow: hidden;
  background: var(--navy);
  box-shadow: var(--shadow-2);
}

.page-faq .faq-index__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-faq .faq-index__figure .media-frame__caption {
  margin: 0;
  padding: 14px 20px 18px;
  font-size: 14px;
  line-height: 1.65;
  color: rgba(246, 241, 231, 0.82);
  background: var(--navy);
}

/* ---------- 问题分组 ---------- */

.page-faq .faq-group {
  padding: clamp(46px, 6.5vw, 86px) 0;
  border-top: 1px solid var(--faq-rule);
  scroll-margin-top: 104px;
  background: var(--paper);
}

.page-faq .faq-group--tint {
  background: var(--sand);
}

.page-faq .faq-group__inner {
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
}

.page-faq .faq-group__no {
  display: block;
  margin-bottom: 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--sun-orange);
}

.page-faq .faq-group__head h2 {
  margin: 0 0 12px;
  font-size: clamp(24px, 3.2vw, 38px);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--navy);
}

.page-faq .faq-group__lede {
  margin: 0;
  max-width: 34ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--slate);
}

/* ---------- 折叠面板 ---------- */

.page-faq .faq-panel {
  margin: 0 0 12px;
  overflow: hidden;
  background: var(--paper);
  border: 1px solid var(--faq-rule);
  border-radius: var(--radius-m);
  transition: border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.page-faq .faq-group--tint .faq-panel {
  background: var(--paper);
}

.page-faq .faq-panel:hover {
  border-color: rgba(255, 106, 0, 0.35);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-panel[open] {
  border-color: rgba(255, 106, 0, 0.46);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-panel > summary {
  position: relative;
  display: block;
  padding: 18px 56px 18px 26px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--navy);
  cursor: pointer;
  list-style: none;
  transition: color 0.18s var(--ease);
}

.page-faq .faq-panel > summary::-webkit-details-marker {
  display: none;
}

.page-faq .faq-panel > summary::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 24px;
  width: 4px;
  height: 4px;
  border-radius: var(--radius-pill);
  background: var(--sun-orange);
  transition: top 0.2s var(--ease), height 0.2s var(--ease), border-radius 0.2s var(--ease);
}

.page-faq .faq-panel[open] > summary::before {
  top: 14px;
  height: calc(100% - 28px);
  border-radius: 3px;
}

.page-faq .faq-panel > summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--slate);
  transition: color 0.18s var(--ease);
}

.page-faq .faq-panel[open] > summary::after {
  content: "\2212";
  color: var(--sun-orange);
}

.page-faq .faq-panel > summary:hover {
  color: var(--sun-orange);
}

.page-faq .faq-panel > summary:focus-visible {
  outline: 3px solid var(--faq-focus);
  outline-offset: -3px;
  border-radius: var(--radius-m);
}

.page-faq .faq-panel__body {
  padding: 4px 26px 24px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--navy);
}

.page-faq .faq-panel__body > *:last-child {
  margin-bottom: 0;
}

.page-faq .faq-panel__body p {
  margin: 0 0 14px;
}

/* ---------- 步骤与要点 ---------- */

.page-faq .faq-steps {
  display: grid;
  gap: 10px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  font-size: 16px;
  line-height: 1.78;
}

.page-faq .faq-steps .mono {
  display: block;
  height: 24px;
  margin-top: 3px;
  font-size: 13px;
  font-weight: 700;
  line-height: 24px;
  text-align: center;
  color: var(--sun-orange);
  background: var(--sun-pale);
  border-radius: 8px;
}

.page-faq .faq-bullets {
  display: grid;
  gap: 8px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-bullets li {
  position: relative;
  padding-left: 18px;
  font-size: 16px;
  line-height: 1.8;
}

.page-faq .faq-bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--sun-gold);
}

.page-faq .faq-bullets .mono {
  padding: 1px 6px;
  border-radius: 6px;
  background: var(--sun-pale);
  color: var(--navy);
  font-size: 14px;
  font-weight: 700;
}

.page-faq .faq-note {
  margin: 0;
  padding-left: 14px;
  border-left: 2px solid rgba(255, 176, 32, 0.6);
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate);
}

/* ---------- 仍未解决时 ---------- */

.page-faq .faq-help {
  position: relative;
  padding: clamp(52px, 7vw, 96px) 0;
  background:
    radial-gradient(760px 420px at 88% 0%, rgba(255, 106, 0, 0.28), transparent 64%),
    var(--navy);
  color: var(--sand);
}

.page-faq .faq-help__inner {
  display: grid;
  gap: clamp(30px, 4vw, 56px);
  align-items: center;
}

.page-faq .faq-help .eyebrow {
  color: var(--sun-gold);
}

.page-faq .faq-help h2 {
  margin: 12px 0 16px;
  max-width: 20ch;
  font-size: clamp(26px, 3.6vw, 44px);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: #FFFFFF;
}

.page-faq .faq-help__lede {
  margin: 0 0 24px;
  max-width: 40ch;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(246, 241, 231, 0.82);
}

.page-faq .faq-help__list {
  display: grid;
  gap: 10px;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-help__list li {
  position: relative;
  padding-left: 20px;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(246, 241, 231, 0.92);
}

.page-faq .faq-help__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 8px;
  height: 2px;
  background: var(--sun-orange);
}

.page-faq .faq-help__channels {
  display: grid;
  gap: 10px;
  margin-bottom: 30px;
  padding: 20px 22px;
  border-radius: var(--radius-m);
  background: rgba(246, 241, 231, 0.07);
  border: 1px solid rgba(246, 241, 231, 0.16);
}

.page-faq .faq-help__channels p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(246, 241, 231, 0.88);
  overflow-wrap: anywhere;
}

.page-faq .faq-help__channels .mono {
  display: inline-block;
  min-width: 44px;
  margin-right: 10px;
  padding: 2px 8px;
  border-radius: 6px;
  background: rgba(38, 224, 214, 0.14);
  color: var(--cyan);
  font-size: 13px;
  font-weight: 700;
  text-align: center;
}

.page-faq .faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-help__figure {
  margin: 0;
  border-radius: var(--radius-l);
  overflow: hidden;
  box-shadow: var(--shadow-2);
}

.page-faq .faq-help__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-index__item {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 4px 18px;
  }
}

@media (min-width: 940px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

  .page-faq .faq-hero__orbit svg {
    max-width: 100%;
    margin: 0 0 0 auto;
  }

  .page-faq .faq-index__grid {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 0.68fr);
  }

  .page-faq .faq-index__figure {
    position: sticky;
    top: 116px;
  }

  .page-faq .faq-group__inner {
    grid-template-columns: minmax(0, 290px) minmax(0, 1fr);
    gap: clamp(34px, 4.6vw, 66px);
  }

  .page-faq .faq-group__head {
    position: sticky;
    top: 116px;
    align-self: start;
  }

  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
  }
}

@media (min-width: 1240px) {
  .page-faq .faq-hero__facts {
    gap: 14px;
  }

  .page-faq .faq-panel > summary {
    font-size: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__item,
  .page-faq .faq-panel,
  .page-faq .faq-panel > summary,
  .page-faq .faq-panel > summary::before,
  .page-faq .crumbs a {
    transition: none;
  }

  .page-faq .faq-index__item:hover {
    transform: none;
  }
}