.page-faq {
  --faq-card: rgba(18, 40, 61, 0.62);
  --faq-card-deep: rgba(7, 16, 24, 0.55);
  --faq-gap: clamp(18px, 3vw, 32px);
  color: var(--bp-cream);
  background:
    radial-gradient(1000px 560px at 90% -8%, rgba(200, 64, 46, 0.22), transparent 66%),
    radial-gradient(820px 520px at -10% 6%, rgba(95, 168, 139, 0.13), transparent 72%),
    var(--bp-night);
  padding-bottom: clamp(56px, 9vw, 110px);
}

.page-faq .bp-mark {
  background: rgba(217, 164, 65, 0.22);
  color: var(--bp-gold-soft);
  padding: 0 0.28em;
  border-radius: 4px;
}

.page-faq .bp-link {
  color: var(--bp-gold-soft);
  text-decoration: underline;
  text-decoration-color: rgba(217, 164, 65, 0.5);
  text-underline-offset: 3px;
}

.page-faq .bp-link:hover {
  color: var(--bp-cream);
  text-decoration-color: var(--bp-cinnabar);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-top {
  padding: clamp(24px, 4vw, 44px) 0 clamp(30px, 5vw, 58px);
  border-bottom: 1px solid var(--bp-line);
  background:
    linear-gradient(180deg, rgba(7, 16, 24, 0.5), rgba(7, 16, 24, 0)),
    radial-gradient(620px 320px at 80% 0%, rgba(217, 164, 65, 0.12), transparent 72%);
}

.page-faq .faq-hero {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  margin-top: clamp(22px, 4vw, 38px);
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-family: var(--bp-serif);
  font-weight: 800;
  font-size: clamp(30px, 6.2vw, 56px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--bp-cream);
  max-width: 18ch;
}

.page-faq .faq-hero__lead {
  margin: clamp(16px, 2.5vw, 24px) 0 0;
  max-width: 62ch;
  color: var(--bp-mist);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
}

.page-faq .faq-hero__side {
  border: 1px solid var(--bp-line);
  border-left: 3px solid var(--bp-cinnabar);
  border-radius: var(--bp-r-md);
  background: linear-gradient(160deg, rgba(18, 40, 61, 0.92), rgba(11, 27, 43, 0.72));
  padding: 18px 18px 16px;
}

.page-faq .faq-side__label {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--bp-gold);
}

.page-faq .faq-side__link {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 0;
  border-top: 1px solid var(--bp-line);
  text-decoration: none;
  color: var(--bp-cream);
  transition: color 0.2s var(--bp-ease), transform 0.2s var(--bp-ease);
}

.page-faq .faq-side__link:hover {
  color: var(--bp-gold-soft);
  transform: translateX(3px);
}

.page-faq .faq-side__k {
  font-weight: 600;
  font-size: 15px;
}

.page-faq .faq-side__v {
  font-size: 13px;
  color: var(--bp-mist);
}

.page-faq .faq-side__note {
  margin: 10px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--bp-mist);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: var(--faq-gap);
  padding-top: clamp(28px, 5vw, 56px);
}

.page-faq .faq-index {
  border: 1px solid var(--bp-line);
  border-radius: var(--bp-r-md);
  background: var(--faq-card-deep);
  padding: 16px 16px 14px;
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--bp-gold);
}

.page-faq .faq-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--bp-line);
  border-radius: var(--bp-r-pill);
  font-size: 13.5px;
  color: var(--bp-cream);
  text-decoration: none;
  transition: border-color 0.2s var(--bp-ease), background 0.2s var(--bp-ease), color 0.2s var(--bp-ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  border-color: rgba(217, 164, 65, 0.6);
  background: rgba(217, 164, 65, 0.12);
  color: var(--bp-gold-soft);
}

.page-faq .faq-index__no {
  font-family: var(--bp-serif);
  font-size: 12px;
  color: var(--bp-gold);
}

.page-faq .faq-index__hint {
  margin: 12px 0 0;
  font-size: 12.5px;
  color: var(--bp-mist);
}

/* ---------- 分组 ---------- */
.page-faq .faq-sec + .faq-sec {
  margin-top: clamp(38px, 6vw, 72px);
}

.page-faq .faq-sec__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  border-bottom: 1px solid var(--bp-line);
  padding-bottom: 12px;
}

.page-faq .faq-sec__num {
  font-family: var(--bp-serif);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  color: var(--bp-cinnabar);
  line-height: 1;
}

.page-faq .faq-sec__title {
  margin: 0;
  font-family: var(--bp-serif);
  font-weight: 700;
  font-size: clamp(20px, 3.4vw, 30px);
  line-height: 1.35;
  color: var(--bp-cream);
}

.page-faq .faq-sec__lead {
  margin: 14px 0 clamp(18px, 3vw, 26px);
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--bp-mist);
}

.page-faq .faq-sec__grid {
  display: grid;
  gap: var(--faq-gap);
}

/* ---------- 问答手风琴 ---------- */
.page-faq .faq-qa {
  display: grid;
  gap: 12px;
  min-width: 0;
}

.page-faq .faq-item {
  border: 1px solid var(--bp-line);
  border-radius: var(--bp-r-md);
  background: linear-gradient(180deg, rgba(18, 40, 61, 0.74), rgba(11, 27, 43, 0.72));
  transition: border-color 0.25s var(--bp-ease), box-shadow 0.25s var(--bp-ease);
}

.page-faq .faq-item[open] {
  border-color: rgba(217, 164, 65, 0.45);
  box-shadow: 0 22px 44px -32px rgba(0, 0, 0, 0.95);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--bp-cream);
}

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

.page-faq .faq-item__q::after {
  content: "+";
  margin-left: auto;
  flex: none;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(217, 164, 65, 0.5);
  border-radius: var(--bp-r-pill);
  font-family: var(--bp-sans);
  font-size: 15px;
  line-height: 1;
  color: var(--bp-gold);
  transition: transform 0.25s var(--bp-ease), border-color 0.25s var(--bp-ease);
}

.page-faq .faq-item[open] .faq-item__q::after {
  content: "–";
  transform: rotate(180deg);
  border-color: rgba(200, 64, 46, 0.7);
  color: var(--bp-cinnabar);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--bp-gold);
  outline-offset: -2px;
  border-radius: var(--bp-r-md);
}

.page-faq .faq-item__a {
  padding: 0 16px 18px;
}

.page-faq .faq-item__concl {
  margin: 0;
  padding: 10px 12px;
  border-left: 2px solid var(--bp-celadon);
  border-radius: 0 8px 8px 0;
  background: rgba(95, 168, 139, 0.1);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--bp-cream);
}

.page-faq .faq-item__steps {
  counter-reset: faq-step;
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-item__steps li {
  position: relative;
  padding-left: 32px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--bp-mist);
}

.page-faq .faq-item__steps li::before {
  counter-increment: faq-step;
  content: counter(faq-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(217, 164, 65, 0.45);
  border-radius: var(--bp-r-pill);
  font-family: var(--bp-serif);
  font-size: 11px;
  color: var(--bp-gold);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: 0;
  border: 1px solid var(--bp-line);
  border-radius: var(--bp-r-lg);
  overflow: hidden;
  background: var(--bp-night-2);
}

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

.page-faq .faq-figure--tall img {
  max-height: 420px;
}

.page-faq .faq-figure--wide {
  margin-top: var(--faq-gap);
}

.page-faq .faq-figure--wide img {
  max-height: 380px;
}

.page-faq .faq-figure__cap {
  padding: 10px 16px 12px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--bp-mist);
  border-top: 1px solid var(--bp-line);
}

/* ---------- 三步路径 ---------- */
.page-faq .faq-route {
  list-style: none;
  margin: 0 0 var(--faq-gap);
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-route__node {
  position: relative;
  border: 1px solid var(--bp-line);
  border-radius: var(--bp-r-md);
  background: linear-gradient(150deg, rgba(18, 40, 61, 0.85), rgba(7, 16, 24, 0.6));
  padding: 16px 16px 14px;
  min-width: 0;
}

.page-faq .faq-route__node:last-child {
  border-color: rgba(200, 64, 46, 0.45);
  background: linear-gradient(150deg, rgba(142, 43, 34, 0.34), rgba(7, 16, 24, 0.7));
}

.page-faq .faq-route__dot {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: var(--bp-r-pill);
  border: 1px solid rgba(217, 164, 65, 0.6);
  font-family: var(--bp-serif);
  font-size: 17px;
  font-weight: 800;
  color: var(--bp-gold);
  background: rgba(217, 164, 65, 0.1);
}

.page-faq .faq-route__node:last-child .faq-route__dot {
  border-color: rgba(200, 64, 46, 0.7);
  color: var(--bp-cream);
  background: rgba(200, 64, 46, 0.3);
}

.page-faq .faq-route__name {
  margin: 12px 0 6px;
  font-family: var(--bp-serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--bp-cream);
}

.page-faq .faq-route__desc {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--bp-mist);
}

/* ---------- 联系信息 ---------- */
.page-faq .faq-contact {
  margin-top: var(--faq-gap);
  display: grid;
  gap: 12px;
}

.page-faq .faq-contact__item {
  border: 1px solid var(--bp-line);
  border-top: 2px solid var(--bp-gold);
  border-radius: var(--bp-r-md);
  background: rgba(7, 16, 24, 0.55);
  padding: 16px;
  min-width: 0;
}

.page-faq .faq-contact__key {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--bp-gold);
}

.page-faq .faq-contact__val {
  margin: 0;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--bp-cream);
  word-break: break-word;
}

.page-faq .faq-contact__sub {
  margin: 8px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--bp-mist);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-sec__grid {
    grid-template-columns: minmax(0, 1fr) minmax(240px, 300px);
    align-items: start;
  }

  .page-faq .faq-route {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-faq .faq-route__node:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 34px;
    right: -19px;
    width: 20px;
    height: 1px;
    background: linear-gradient(90deg, rgba(217, 164, 65, 0.7), rgba(217, 164, 65, 0.1));
  }

  .page-faq .faq-contact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.6fr) minmax(270px, 0.72fr);
    align-items: end;
  }

  .page-faq .faq-body {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: clamp(28px, 3.4vw, 52px);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--bp-header-h) + 24px);
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
  }

  .page-faq .faq-index__link {
    display: flex;
    width: 100%;
    border-color: transparent;
    border-radius: 10px;
    padding: 9px 10px;
    font-size: 13.5px;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-color: rgba(217, 164, 65, 0.45);
  }
}

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