/* ===== 选购问答 · 页面专属样式 ===== */
.page-faq {
  --faq-hair: rgba(199, 211, 221, 0.16);
  --faq-hair-strong: rgba(199, 211, 221, 0.34);
  --faq-ink-hair: rgba(10, 27, 46, 0.13);
  --faq-amber-deep: #a9660f;
  --faq-pad: clamp(24px, 4vw, 52px);
}

.page-faq [id] {
  scroll-margin-top: calc(var(--header-h) + 24px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(22px, 3.6vw, 48px) 0 clamp(34px, 5vw, 72px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: -14%;
  right: -8%;
  width: min(700px, 66vw);
  height: min(560px, 56vw);
  background:
    linear-gradient(148deg, rgba(40, 224, 208, 0.22), rgba(40, 224, 208, 0.03) 46%, rgba(255, 179, 71, 0.14));
  clip-path: polygon(100% 0, 100% 100%, 0 0);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--faq-hair) 1px, transparent 1px),
    linear-gradient(to bottom, var(--faq-hair) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: radial-gradient(ellipse at 34% 44%, #000 0%, transparent 76%);
  mask-image: radial-gradient(ellipse at 34% 44%, #000 0%, transparent 76%);
  pointer-events: none;
}

.page-faq .faq-hero-grid {
  position: relative;
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-hero-main h1 {
  font-family: var(--font-head);
  font-weight: 400;
  font-size: clamp(36px, 8vw, 74px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 14px 0 0;
}

.page-faq .faq-lede {
  margin-top: 20px;
  max-width: 44em;
  font-size: clamp(15px, 1.1vw, 17px);
  line-height: 1.78;
  color: var(--fg-dim);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

/* 速查面板 */
.page-faq .faq-quick {
  position: relative;
  border: 1px solid var(--faq-hair-strong);
  background: linear-gradient(180deg, rgba(18, 59, 68, 0.55), rgba(6, 16, 28, 0.8));
  padding: clamp(20px, 2.6vw, 30px) clamp(18px, 2.4vw, 28px) clamp(20px, 2.6vw, 28px) clamp(24px, 3vw, 34px);
}

.page-faq .faq-quick::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--cyan), var(--amber));
}

.page-faq .faq-quick-eyebrow {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.page-faq .faq-quick-title {
  margin: 10px 0 20px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 400;
  line-height: 1.65;
  color: var(--fg-dim);
}

.page-faq .faq-quick-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .faq-quick-row {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--faq-hair);
  font-size: 14px;
  line-height: 1.6;
}

.page-faq .faq-quick-num {
  font-size: 12px;
  color: var(--amber);
  letter-spacing: 0.02em;
}

/* ---------- 图片带 ---------- */
.page-faq .faq-band {
  margin: 0;
  padding-bottom: clamp(30px, 4.6vw, 64px);
}

.page-faq .faq-band-frame {
  border: 1px solid var(--faq-hair);
}

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

.page-faq .faq-band-cap {
  display: block;
  margin-top: 12px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--fg-faint);
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-body {
  padding-bottom: clamp(40px, 5vw, 80px);
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  grid-template-columns: minmax(0, 1fr);
}

.page-faq .faq-index-title {
  margin: 0 0 14px;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.14em;
  color: var(--fg-faint);
}

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

.page-faq .faq-index-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid var(--faq-hair-strong);
  font-size: 13px;
  color: var(--fg-dim);
  text-decoration: none;
  transition: color 0.24s var(--ease), border-color 0.24s var(--ease), background-color 0.24s var(--ease);
}

.page-faq .faq-index-num {
  font-size: 11px;
  color: var(--cyan);
}

.page-faq .faq-index-link:hover,
.page-faq .faq-index-link:focus-visible {
  color: var(--mist);
  border-color: var(--cyan);
  background: rgba(40, 224, 208, 0.08);
}

.page-faq .faq-index-note {
  margin: 16px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--fg-faint);
}

.page-faq .faq-stream {
  display: grid;
  gap: clamp(38px, 5vw, 66px);
  min-width: 0;
}

/* ---------- 分组 ---------- */
.page-faq .faq-group-head {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  column-gap: 14px;
  align-items: baseline;
  padding-bottom: 16px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--faq-hair-strong);
}

.page-faq .faq-group-num {
  font-size: 13px;
  color: var(--amber);
  letter-spacing: 0.06em;
}

.page-faq .faq-group-title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 400;
  font-size: clamp(24px, 3.2vw, 34px);
  line-height: 1.12;
  letter-spacing: -0.01em;
}

.page-faq .faq-group-desc {
  grid-column: 2;
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--fg-dim);
}

.page-faq .faq-q {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
}

.page-faq .accordion-panel-inner p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--fg-dim);
}

.page-faq .accordion-panel-inner a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 浅色速查区 ---------- */
.page-faq .faq-light {
  background: var(--mist);
  color: var(--ink);
  padding: clamp(38px, 5.4vw, 76px) 0;
}

.page-faq .faq-light .eyebrow {
  color: var(--teal-deep);
}

.page-faq .faq-light-head {
  margin-bottom: clamp(22px, 3vw, 36px);
  max-width: 62em;
}

.page-faq .faq-light-title {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 400;
  font-size: clamp(26px, 4vw, 46px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-faq .faq-light-desc {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--graphite);
}

.page-faq .faq-light .data-table th,
.page-faq .faq-light .data-table td {
  color: var(--ink);
  border-color: var(--faq-ink-hair);
}

.page-faq .faq-light .data-table thead th {
  background: var(--ink-deep);
  color: var(--mist);
}

.page-faq .faq-light .data-table .num {
  color: var(--faq-amber-deep);
}

.page-faq .faq-light .data-table tbody th {
  font-weight: 500;
}

/* ---------- 档位 ---------- */
.page-faq .faq-tier {
  padding: clamp(44px, 5.6vw, 84px) 0 clamp(8px, 2vw, 20px);
}

.page-faq .faq-tier-head {
  max-width: 60em;
  margin-bottom: clamp(24px, 3.4vw, 42px);
}

.page-faq .faq-tier-title {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 400;
  font-size: clamp(26px, 4vw, 46px);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.page-faq .faq-tier-desc {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--fg-dim);
}

.page-faq .faq-tier-desc a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .tier-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--faq-hair);
  border: 1px solid var(--faq-hair-strong);
}

.page-faq .tier-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(22px, 3vw, 34px);
  background: var(--ink);
  transition: background-color 0.28s var(--ease);
}

.page-faq .tier-card::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 2px;
  background: var(--faq-hair-strong);
}

.page-faq .tier-card:nth-child(2)::before {
  background: var(--cyan);
}

.page-faq .tier-card:nth-child(3)::before {
  background: var(--amber);
}

.page-faq .tier-card:hover {
  background: var(--teal-deep);
}

.page-faq .tier-tag {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--fg-faint);
}

.page-faq .tier-name {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 400;
  font-size: clamp(24px, 3vw, 32px);
  letter-spacing: -0.01em;
}

.page-faq .tier-fit {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--fg-dim);
}

.page-faq .tier-list {
  margin: 6px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  border-top: 1px solid var(--faq-hair);
  padding-top: 14px;
}

.page-faq .tier-list li {
  position: relative;
  padding-left: 16px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--fg-dim);
}

.page-faq .tier-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  background: var(--cyan);
}

.page-faq .tier-card:nth-child(3) .tier-list li::before {
  background: var(--amber);
}

/* ---------- 跨端准备 ---------- */
.page-faq .faq-cross {
  padding: clamp(46px, 5.6vw, 88px) 0;
}

.page-faq .faq-cross-head {
  margin-bottom: clamp(22px, 3vw, 38px);
  max-width: 56em;
}

.page-faq .faq-cross-title {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 400;
  font-size: clamp(26px, 4vw, 46px);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.page-faq .cross-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 3.6vw, 48px);
  align-items: start;
}

.page-faq .cross-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--faq-hair);
}

.page-faq .cross-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .cross-num {
  font-size: 12px;
  color: var(--cyan);
  letter-spacing: 0.06em;
  padding-top: 3px;
}

.page-faq .cross-item-title {
  margin: 0 0 6px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.01em;
}

.page-faq .cross-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--fg-dim);
}

.page-faq .cross-fig {
  margin: 0;
}

.page-faq .cross-fig .media-frame {
  border: 1px solid var(--faq-hair-strong);
}

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

.page-faq .cross-fig-cap {
  display: block;
  margin-top: 12px;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--fg-faint);
}

/* ---------- 联系 ---------- */
.page-faq .faq-contact {
  padding: 0 0 clamp(44px, 5.4vw, 82px);
}

.page-faq .faq-contact-card {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 46px);
  padding: clamp(26px, 4vw, 50px);
  border: 1px solid var(--faq-hair-strong);
  background:
    linear-gradient(118deg, rgba(40, 224, 208, 0.14), rgba(255, 179, 71, 0.1) 68%, rgba(6, 16, 28, 0.9)),
    var(--ink-deep);
}

.page-faq .faq-contact-title {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 400;
  font-size: clamp(26px, 3.8vw, 44px);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.page-faq .faq-contact-desc {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.76;
  color: var(--fg-dim);
  max-width: 40em;
}

.page-faq .faq-contact-lines {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .faq-contact-lines .contact-line {
  flex-wrap: wrap;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-hair);
}

.page-faq .faq-contact-lines .contact-value {
  word-break: break-word;
}

.page-faq .faq-contact-note {
  margin: 4px 0 0;
  font-size: 13px;
  line-height: 1.72;
  color: var(--fg-faint);
}

.page-faq .faq-contact-lines .btn {
  justify-self: start;
  margin-top: 6px;
}

/* ---------- 继续查看 ---------- */
.page-faq .faq-more {
  padding: 0 0 clamp(48px, 6vw, 92px);
}

.page-faq .faq-more-title {
  margin: 0 0 clamp(18px, 2.4vw, 28px);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 0.14em;
  color: var(--fg-faint);
}

.page-faq .faq-more-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--faq-hair);
  border: 1px solid var(--faq-hair);
}

.page-faq .faq-more-link {
  display: grid;
  gap: 8px;
  padding: 20px clamp(16px, 2.2vw, 26px) 22px;
  background: var(--ink);
  text-decoration: none;
  color: inherit;
  transition: background-color 0.26s var(--ease), color 0.26s var(--ease);
}

.page-faq .faq-more-link:hover,
.page-faq .faq-more-link:focus-visible {
  background: var(--teal-deep);
}

.page-faq .faq-more-index {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-faq .faq-more-label {
  font-family: var(--font-head);
  font-size: 22px;
  letter-spacing: -0.01em;
}

.page-faq .faq-more-desc {
  font-size: 13.5px;
  line-height: 1.66;
  color: var(--fg-dim);
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-more-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.32fr) minmax(300px, 0.82fr);
    align-items: end;
  }

  .page-faq .cross-layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-faq .faq-contact-card {
    grid-template-columns: minmax(0, 1.1fr) minmax(320px, 0.9fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: 216px minmax(0, 1fr);
    align-items: start;
  }

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

  .page-faq .faq-index-list {
    display: grid;
    gap: 0;
    border-top: 1px solid var(--faq-hair);
  }

  .page-faq .faq-index-link {
    display: grid;
    grid-template-columns: 28px minmax(0, 1fr);
    gap: 8px;
    padding: 12px 0 12px 12px;
    border: 0;
    border-bottom: 1px solid var(--faq-hair);
    border-left: 2px solid transparent;
  }

  .page-faq .faq-index-link:hover,
  .page-faq .faq-index-link:focus-visible {
    background: rgba(40, 224, 208, 0.06);
    border-left-color: var(--cyan);
  }

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

@media (min-width: 1180px) {
  .page-faq .faq-more-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .tier-card,
  .page-faq .faq-index-link,
  .page-faq .faq-more-link {
    transition: none;
  }
}
</main>