.page-faq {
  --faq-rail-w: 236px;
  --faq-text-soft: rgba(242, 235, 221, .74);
  background: var(--tb-ink);
  color: var(--tb-bone);
  font-family: var(--tb-body);
  overflow-x: hidden;
}

.page-faq .tb-shell {
  width: 100%;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-block: clamp(20px, 4vw, 40px) clamp(24px, 4vw, 44px);
  background:
    radial-gradient(120% 90% at 92% 0%, rgba(76, 242, 212, .10), transparent 62%),
    radial-gradient(90% 70% at 0% 100%, rgba(165, 106, 78, .16), transparent 60%),
    linear-gradient(180deg, rgba(12, 34, 51, .92) 0%, rgba(7, 26, 23, 1) 100%);
  border-bottom: 1px solid var(--tb-line);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: clamp(90px, 22vw, 200px);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--tb-whistle));
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  margin-top: 14px;
}

.page-faq .faq-hero h1 {
  margin: 8px 0 14px;
  font-family: var(--tb-display);
  font-weight: 900;
  font-size: clamp(30px, 7vw, 58px);
  line-height: 1.06;
  letter-spacing: -.01em;
  text-wrap: balance;
}

.page-faq .faq-hero .tb-lede {
  max-width: 58ch;
  margin: 0;
  color: var(--faq-text-soft);
  line-height: 1.85;
}

.page-faq .faq-hero__meter {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 4px 0 0;
  padding: 1px;
  background: var(--tb-line);
  border: 1px solid var(--tb-line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-faq .faq-hero__cell {
  background: rgba(7, 26, 23, .84);
  padding: 12px 12px 14px;
}

.page-faq .faq-hero__cell:last-child {
  grid-column: 1 / -1;
}

.page-faq .faq-hero__cell dt {
  margin: 0;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--tb-stone);
}

.page-faq .faq-hero__cell dd {
  margin: 6px 0 0;
  font-family: var(--tb-mono);
  font-weight: 700;
  font-size: 14px;
  color: var(--tb-whistle);
  line-height: 1.3;
}

/* ---------- 主体双栏 ---------- */
.page-faq .faq-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  padding-block: clamp(24px, 4vw, 48px) clamp(32px, 5vw, 64px);
}

.page-faq .faq-rail__title {
  margin: 0 0 10px;
  font-family: var(--tb-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--tb-signal);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 2px solid var(--tb-line);
}

.page-faq .faq-rail__link {
  position: relative;
  display: flex;
  gap: 8px;
  align-items: baseline;
  padding: 9px 0 9px 16px;
  color: var(--faq-text-soft);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.5;
  transition: color .18s var(--tb-ease);
}

.page-faq .faq-rail__link::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 50%;
  width: 9px;
  height: 2px;
  background: var(--tb-moss);
  transform: translateY(-50%);
  transition: background .18s var(--tb-ease), width .18s var(--tb-ease);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--tb-whistle);
}

.page-faq .faq-rail__link:hover::before,
.page-faq .faq-rail__link:focus-visible::before {
  background: var(--tb-whistle);
  width: 13px;
}

.page-faq .faq-rail__num {
  font-family: var(--tb-mono);
  font-size: 11px;
  color: var(--tb-stone);
}

/* ---------- 区块 ---------- */
.page-faq .faq-block {
  padding-block: clamp(24px, 4vw, 40px);
  border-top: 1px solid var(--tb-line);
  scroll-margin-top: calc(var(--tb-hh) + 24px);
}

.page-faq .faq-block:first-child {
  padding-top: 0;
  border-top: none;
}

.page-faq .faq-block__head {
  display: flex;
  gap: 12px;
  align-items: baseline;
  margin-bottom: 12px;
}

.page-faq .faq-block__num {
  flex: none;
  font-family: var(--tb-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--tb-ink);
  background: var(--tb-whistle);
  padding: 2px 8px;
}

.page-faq .faq-block__head h2 {
  margin: 0;
}

.page-faq .faq-block__lede {
  max-width: 64ch;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--faq-text-soft);
}

.page-faq .faq-block__note {
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--tb-clay);
  font-size: 14px;
  line-height: 1.75;
  color: var(--faq-text-soft);
}

.page-faq .faq-block__note a,
.page-faq .faq-block__lede a {
  color: var(--tb-whistle);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 210, 63, .45);
}

.page-faq .faq-block__note a:hover,
.page-faq .faq-block__lede a:hover {
  color: var(--tb-signal);
  border-bottom-color: var(--tb-signal);
}

/* ---------- 三步卡 ---------- */
.page-faq .faq-steps {
  list-style: none;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin: 20px 0 0;
  padding: 0;
}

.page-faq .faq-step {
  position: relative;
  padding: 18px 16px 18px;
  background: linear-gradient(160deg, rgba(62, 92, 75, .34) 0%, rgba(7, 26, 23, .72) 100%);
  border: 1px solid var(--tb-line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-faq .faq-step__num {
  display: block;
  font-family: var(--tb-mono);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--tb-whistle);
  margin-bottom: 10px;
}

.page-faq .faq-step__num::after {
  content: "";
  display: block;
  height: 2px;
  margin-top: 8px;
  background: linear-gradient(90deg, var(--tb-whistle), rgba(255, 210, 63, 0));
}

.page-faq .faq-step:nth-child(1) .faq-step__num::after { width: 34px; }
.page-faq .faq-step:nth-child(2) .faq-step__num::after { width: 62px; }
.page-faq .faq-step:nth-child(3) .faq-step__num::after { width: 90px; }

.page-faq .faq-step__title {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--tb-bone);
}

.page-faq .faq-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--faq-text-soft);
}

/* ---------- 图文分栏 ---------- */
.page-faq .faq-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: 20px;
}

.page-faq .faq-figure {
  margin: 0;
  border: 1px solid var(--tb-line);
  background: rgba(12, 34, 51, .6);
}

.page-faq .faq-figure .tb-figure__media {
  overflow: hidden;
  background: rgba(7, 26, 23, .9);
}

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

.page-faq .faq-figure .tb-figure__caption {
  display: block;
  padding: 8px 12px;
  font-family: var(--tb-mono);
  font-size: 11.5px;
  letter-spacing: .02em;
  color: var(--tb-stone);
  border-top: 1px solid var(--tb-line-soft);
}

.page-faq .faq-split__text p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--faq-text-soft);
}

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

.page-faq .faq-list {
  list-style: none;
  display: grid;
  gap: 9px;
  margin: 0 0 12px;
  padding: 0;
}

.page-faq .faq-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--faq-text-soft);
}

.page-faq .faq-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 7px;
  background: var(--tb-cyan);
  transform: rotate(45deg);
}

/* ---------- 比分状态条 ---------- */
.page-faq .faq-status {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: 18px;
  padding: 16px;
  border: 1px solid var(--tb-line);
  border-left: 3px solid var(--tb-cyan);
  background: rgba(76, 242, 212, .06);
}

.page-faq .faq-status__item {
  display: grid;
  gap: 4px;
}

.page-faq .faq-status__label {
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--tb-stone);
}

.page-faq .faq-status__value {
  font-family: var(--tb-mono);
  font-weight: 700;
  font-size: 14px;
  line-height: 1.4;
  color: var(--tb-cyan);
}

/* ---------- 有序排查步骤 ---------- */
.page-faq .faq-order {
  counter-reset: faqo;
  list-style: none;
  display: grid;
  gap: 10px;
  margin: 18px 0 0;
  padding: 0;
}

.page-faq .faq-order li {
  counter-increment: faqo;
  position: relative;
  padding: 14px 16px 14px 52px;
  border: 1px solid var(--tb-line-soft);
  background: rgba(12, 34, 51, .42);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--faq-text-soft);
}

.page-faq .faq-order li::before {
  content: counter(faqo, decimal-leading-zero);
  position: absolute;
  left: 15px;
  top: 14px;
  font-family: var(--tb-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--tb-signal);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-acc-group {
  display: grid;
  gap: 10px;
  margin-top: 20px;
}

.page-faq .faq-acc {
  border: 1px solid var(--tb-line);
  background: rgba(12, 34, 51, .55);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
}

.page-faq .faq-acc > summary {
  position: relative;
  display: block;
  padding: 14px 44px 14px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--tb-bone);
  transition: background .18s var(--tb-ease);
}

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

.page-faq .faq-acc > summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 12px;
  font-family: var(--tb-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--tb-whistle);
}

.page-faq .faq-acc[open] > summary::after {
  content: "−";
}

.page-faq .faq-acc[open] > summary {
  background: rgba(255, 210, 63, .08);
}

.page-faq .faq-acc__body {
  padding: 0 16px 16px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--faq-text-soft);
}

.page-faq .faq-acc__body p {
  margin: 0;
}

.page-faq .faq-acc__body ol {
  margin: 0;
  padding-left: 20px;
}

.page-faq .faq-acc__body li + li {
  margin-top: 6px;
}

/* ---------- 反馈清单 ---------- */
.page-faq .faq-checklist {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  border-top: 1px solid var(--tb-line-soft);
}

.page-faq .faq-check {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 2px;
  border-bottom: 1px dashed var(--tb-line-soft);
}

.page-faq .faq-check input {
  flex: none;
  width: 18px;
  height: 18px;
  margin: 4px 0 0;
  accent-color: var(--tb-whistle);
  cursor: pointer;
}

.page-faq .faq-check__text {
  display: grid;
  gap: 3px;
  cursor: pointer;
}

.page-faq .faq-check__name {
  font-size: 15px;
  font-weight: 700;
  color: var(--tb-bone);
}

.page-faq .faq-check__desc {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--faq-text-soft);
}

.page-faq .faq-check input:checked + .faq-check__text .faq-check__name {
  color: var(--tb-whistle);
}

/* ---------- 联系 ---------- */
.page-faq .faq-contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  margin-top: 20px;
}

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

.page-faq .faq-contact__row {
  padding-left: 14px;
  border-left: 2px solid var(--tb-clay);
}

.page-faq .faq-contact__label {
  display: block;
  margin-bottom: 4px;
  font-family: var(--tb-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--tb-stone);
}

.page-faq .faq-contact__value {
  display: block;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--tb-bone);
  overflow-wrap: anywhere;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-status {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-faq .faq-hero__cell:last-child {
    grid-column: auto;
  }
}

@media (min-width: 760px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(250px, .5fr);
    gap: 40px;
    align-items: end;
  }

  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }

  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 30px;
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-body {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    gap: 48px;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--tb-hh) + 20px);
    align-self: start;
    padding-right: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-rail__link,
  .page-faq .faq-rail__link::before,
  .page-faq .faq-acc > summary {
    transition: none;
  }
}