.page-faq {
  color: var(--paper);
}

.page-faq .wrap {
  padding-inline: var(--pad-x);
}

/* ---------- 页首 ---------- */
.page-faq .faq-intro {
  padding-block: clamp(28px, 5vw, 60px) clamp(30px, 5vw, 56px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(120% 110% at 90% 0%, rgba(123, 61, 255, .14), transparent 58%),
    radial-gradient(80% 90% at 0% 100%, rgba(36, 224, 210, .07), transparent 62%);
}

.page-faq .breadcrumb {
  margin-bottom: clamp(22px, 3vw, 36px);
}

.page-faq .breadcrumb ul {
  display: flex;
  flex-wrap: wrap;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--muted);
}

.page-faq .breadcrumb li + li::before {
  content: "/";
  padding: 0 10px;
  color: var(--line);
}

.page-faq .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .breadcrumb a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-intro__grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  align-items: end;
}

.page-faq .faq-intro__head .eyebrow {
  margin: 0 0 14px;
}

.page-faq h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(32px, 6.2vw, 64px);
  line-height: 1.04;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .lead {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-stamp {
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  background: rgba(20, 28, 70, .62);
  padding: 18px 20px;
  display: grid;
  gap: 10px;
}

.page-faq .faq-stamp__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  font-size: 14px;
  color: var(--muted);
}

.page-faq .faq-stamp__row b {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--cyan);
}

/* ---------- 区块节奏 ---------- */
.page-faq .faq-steps,
.page-faq .faq-qa,
.page-faq .faq-fix,
.page-faq .faq-more {
  padding-block: clamp(34px, 5.5vw, 76px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-more {
  border-bottom: 0;
  background: radial-gradient(100% 130% at 6% 100%, rgba(36, 224, 210, .09), transparent 62%);
}

.page-faq .sec-title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.12;
  letter-spacing: -0.005em;
  color: var(--paper);
}

.page-faq .faq-sec__lead {
  margin: 0 0 clamp(26px, 4vw, 44px);
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 三步流程 ---------- */
.page-faq .steps-track {
  position: relative;
  display: grid;
  gap: 0;
}

.page-faq .step {
  position: relative;
  display: grid;
  gap: 10px;
  padding: 0 0 30px 44px;
  border-left: 1px solid var(--line);
  margin-left: 15px;
}

.page-faq .step:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-faq .step__node {
  position: absolute;
  left: -16px;
  top: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ink);
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--cyan);
}

.page-faq .step__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.35;
  color: var(--paper);
}

.page-faq .step__text {
  margin: 0;
  max-width: 44ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .steps-figure {
  margin: clamp(30px, 4vw, 50px) 0 0;
}

.page-faq .steps-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background: var(--panel);
  object-fit: cover;
}

.page-faq .steps-figure figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--muted);
}

/* ---------- 问答组 ---------- */
.page-faq .qa-group {
  margin-top: clamp(28px, 4vw, 48px);
}

.page-faq .qa-group:first-of-type {
  margin-top: 0;
}

.page-faq .qa-group__title {
  margin: 0 0 16px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--cyan);
}

.page-faq .qa {
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
  background: rgba(20, 28, 70, .5);
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-faq .qa + .qa {
  margin-top: 10px;
}

.page-faq .qa[open],
.page-faq .qa:focus-within {
  border-left-color: var(--cyan);
}

.page-faq .qa[open] {
  background: rgba(20, 28, 70, .86);
}

.page-faq .qa__q {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 15px 18px;
  font-size: 15.5px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--paper);
}

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

.page-faq .qa__q::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1.45;
  color: var(--cyan);
}

.page-faq .qa[open] .qa__q::after {
  content: "\2212";
}

.page-faq .qa__a {
  padding: 0 18px 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .qa__a p {
  margin: 0;
  max-width: 62ch;
}

.page-faq .qa__a strong {
  color: var(--paper);
  font-weight: 600;
}

/* ---------- 移动端分栏 ---------- */
.page-faq .mobile-split {
  display: grid;
  gap: clamp(28px, 4vw, 44px);
  margin-top: clamp(30px, 4.5vw, 52px);
}

.page-faq .mobile-split__fig {
  margin: 0;
}

.page-faq .mobile-split__fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  background: var(--panel);
  object-fit: cover;
}

.page-faq .mobile-split__fig figcaption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: .04em;
  color: var(--muted);
}

/* ---------- 修正建议 ---------- */
.page-faq .fix-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.page-faq .fix-list li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 18px 20px;
  background: var(--ink);
}

.page-faq .fix-list b {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .04em;
  line-height: 1.8;
  color: var(--orange);
}

.page-faq .fix-list p {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .fix-list strong {
  color: var(--paper);
  font-weight: 600;
  margin-right: 8px;
}

.page-faq .faq-fix__note {
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding-left: 16px;
  border-left: 2px solid var(--clay);
  max-width: 58ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 收束 ---------- */
.page-faq .faq-more__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-more__actions .btn {
  text-decoration: none;
}

.page-faq .qa__q:focus-visible,
.page-faq .faq-more__actions .btn:focus-visible,
.page-faq .breadcrumb a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 断点 ---------- */
@media (min-width: 820px) {
  .page-faq .steps-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 clamp(28px, 3.5vw, 52px);
  }

  .page-faq .steps-track::before {
    content: "";
    position: absolute;
    top: 16px;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--line);
  }

  .page-faq .step {
    padding: 58px 0 0;
    border-left: 0;
    margin-left: 0;
  }

  .page-faq .step__node {
    top: 0;
    left: 0;
  }
}

@media (min-width: 880px) {
  .page-faq .faq-intro__grid {
    grid-template-columns: minmax(0, 1fr) clamp(190px, 24vw, 268px);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-faq .mobile-split {
    grid-template-columns: minmax(0, 1fr) clamp(200px, 20vw, 268px);
    gap: clamp(36px, 5vw, 64px);
    align-items: start;
  }

  .page-faq .mobile-split__qa {
    display: grid;
    align-content: start;
  }
}

@media (min-width: 1100px) {
  .page-faq .qa__a {
    padding-right: clamp(18px, 6vw, 120px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa {
    transition: none;
  }
}