.page-faq {
  --faq-rail-w: 236px;
  --faq-gap: clamp(26px, 4vw, 56px);
  --faq-rule: 1px solid var(--line);
  --faq-step-size: 44px;
  background: var(--surface);
  color: var(--ink);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(22px, 3.4vw, 40px) clamp(30px, 4.6vw, 62px);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(242, 209, 139, .34), transparent 62%),
    var(--paper-cream);
  border-bottom: var(--faq-rule);
}

.page-faq .faq-hero .breadcrumbs {
  margin-bottom: clamp(18px, 2.6vw, 30px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(24px, 3.2vw, 38px);
  align-items: end;
}

.page-faq .faq-hero__main h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(29px, 5vw, 58px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  margin: 10px 0 0;
  max-width: 17em;
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-faq .faq-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-hero__card {
  background: var(--ink-green-900);
  color: #fff;
  border-radius: var(--radius-l);
  padding: clamp(20px, 2.6vw, 30px);
  box-shadow: var(--shadow-2);
}

.page-faq .faq-hero__card-title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--warm-gold-300);
}

.page-faq .faq-quick {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-quick li {
  display: grid;
  gap: 3px;
  padding-left: 14px;
  border-left: 2px solid rgba(242, 209, 139, .38);
  transition: border-color var(--dur) var(--ease);
}

.page-faq .faq-quick li:hover {
  border-left-color: var(--warm-gold-300);
}

.page-faq .faq-quick a {
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  justify-self: start;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .faq-quick a:hover,
.page-faq .faq-quick a:focus-visible {
  color: var(--warm-gold-300);
  border-bottom-color: var(--warm-gold-300);
}

.page-faq .faq-quick span {
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(255, 255, 255, .72);
}

.page-faq .faq-hero__card-note {
  margin: 20px 0 0;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, .16);
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(255, 255, 255, .7);
}

.page-faq .faq-hero__card-note .mono {
  color: var(--warm-gold-300);
  margin-right: 6px;
}

/* ---------- 正文骨架 ---------- */
.page-faq .faq-body {
  padding-block: clamp(28px, 4vw, 60px) clamp(40px, 5vw, 80px);
}

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

/* ---------- 粘性步骤索引 ---------- */
.page-faq .faq-rail {
  border-top: 2px solid var(--warm-gold-600);
  padding-top: 14px;
}

.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-rail .toc {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-rail .toc__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 12px;
  border-left: 2px solid transparent;
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink-soft);
  text-decoration: none;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-rail .toc__link .mono {
  font-size: 12px;
  color: var(--warm-gold-600);
}

.page-faq .faq-rail .toc__link:hover,
.page-faq .faq-rail .toc__link:focus-visible {
  background: var(--paper-deep);
  color: var(--ink);
}

.page-faq .faq-rail .toc__link[aria-current="true"] {
  border-left-color: var(--ember-orange);
  background: var(--paper-deep);
  color: var(--ink);
  font-weight: 600;
}

.page-faq .faq-rail__note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: var(--faq-rule);
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-rail__note .mono {
  color: var(--ink-green-700);
  font-weight: 600;
}

/* ---------- 章节 ---------- */
.page-faq .faq-section {
  padding-block: clamp(24px, 3.2vw, 42px);
  border-top: var(--faq-rule);
  scroll-margin-top: 96px;
}

.page-faq .faq-section:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-section__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--ink-green-900);
  background: var(--warm-gold-300);
  padding: 3px 9px;
  border-radius: var(--radius-s);
  margin-bottom: 12px;
}

.page-faq .faq-section h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 3vw, 33px);
  line-height: 1.28;
  letter-spacing: -0.015em;
  margin: 0 0 14px;
}

.page-faq .faq-section p {
  font-size: 16px;
  line-height: 1.85;
  margin: 0 0 14px;
  max-width: 62ch;
}

.page-faq .faq-section h3 {
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.5;
  margin: 0 0 6px;
}

/* ---------- 图片 ---------- */
.page-faq .faq-fig {
  margin: 22px 0 24px;
}

.page-faq .faq-fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--faq-rule);
  border-radius: var(--radius-m);
  background: var(--paper-deep);
}

.page-faq .faq-fig figcaption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 四步 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: var(--faq-step-size) minmax(0, 1fr);
  gap: 14px;
  padding: 18px 10px 18px 0;
  border-bottom: 1px dashed var(--line-strong);
  transition: box-shadow var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-step:hover {
  box-shadow: inset 3px 0 0 var(--ember-orange);
  background: rgba(251, 246, 234, .6);
}

.page-faq .faq-step__num {
  width: var(--faq-step-size);
  height: var(--faq-step-size);
  border-radius: 50%;
  border: 1px solid var(--warm-gold-600);
  color: var(--warm-gold-600);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-weight: 600;
  flex: none;
}

.page-faq .faq-step__body p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- PC 攻略要点 ---------- */
.page-faq .faq-keypoints {
  display: grid;
  gap: 1px;
  background: var(--line);
  border: var(--faq-rule);
  border-radius: var(--radius-m);
  overflow: hidden;
  margin-top: 22px;
}

.page-faq .faq-keypoint {
  background: var(--surface-raised);
  padding: 16px 18px;
  transition: background var(--dur) var(--ease);
}

.page-faq .faq-keypoint:hover {
  background: var(--paper-deep);
}

.page-faq .faq-keypoint h3 {
  color: var(--ink-green-700);
}

.page-faq .faq-keypoint h3::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 8px;
  vertical-align: 2px;
  background: var(--warm-gold-600);
  transform: rotate(45deg);
}

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

/* ---------- 要点列表 ---------- */
.page-faq .faq-points {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-faq .faq-points li {
  position: relative;
  padding: 14px 0 14px 20px;
  border-bottom: var(--faq-rule);
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-faq .faq-points li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 24px;
  width: 7px;
  height: 7px;
  background: var(--electric-teal);
  border-radius: 1px;
}

.page-faq .faq-points strong {
  display: block;
  color: var(--ink);
  font-weight: 600;
  margin-bottom: 2px;
}

.page-faq .faq-points--tight {
  margin-top: 10px;
}

/* ---------- 礼包提示条 ---------- */
.page-faq .faq-tip {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: 12px;
  margin: 0 0 18px;
  padding: 14px 16px;
  border-left: 3px solid var(--warm-gold-600);
  border-radius: var(--radius-s);
  background: linear-gradient(96deg, var(--warm-gold-300), rgba(242, 209, 139, .28) 78%, rgba(242, 209, 139, 0));
}

.page-faq .faq-tip p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-green-900);
  max-width: none;
}

.page-faq .faq-tip .tag {
  margin-top: 2px;
  white-space: nowrap;
}

/* ---------- 故障排查 ---------- */
.page-faq .faq-section--fault {
  background: var(--cool-slate-050);
  border-top: 0;
  border-radius: var(--radius-l);
  padding-inline: clamp(16px, 3vw, 30px);
  padding-block: clamp(24px, 3.2vw, 40px);
  margin-block: clamp(10px, 2vw, 22px);
}

.page-faq .faq-section--fault h2 {
  color: var(--ink-green-900);
}

.page-faq .faq-fold {
  background: var(--surface-raised);
  border: 1px solid rgba(94, 110, 126, .26);
  border-radius: var(--radius-m);
  margin-bottom: 10px;
  overflow: hidden;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .faq-fold:hover {
  border-color: var(--cool-slate-600);
}

.page-faq .faq-fold[open] {
  border-color: var(--warm-gold-600);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-fold__q {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 16px;
  cursor: pointer;
  font-size: 15.5px;
  font-weight: 500;
  line-height: 1.65;
  color: var(--ink);
  list-style: none;
}

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

.page-faq .faq-fold__q::before {
  content: "+";
  flex: none;
  width: 18px;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.7;
  color: var(--warm-gold-600);
  transition: color var(--dur) var(--ease);
}

.page-faq .faq-fold[open] .faq-fold__q::before {
  content: "–";
  color: var(--ember-orange);
}

.page-faq .faq-fold__q:focus-visible {
  outline: 2px solid var(--warm-gold-600);
  outline-offset: -2px;
}

.page-faq .faq-fold__a {
  padding: 0 16px 16px 44px;
  border-top: 1px solid var(--line);
  margin-top: 0;
  padding-top: 12px;
}

.page-faq .faq-fold__a p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
  max-width: 60ch;
}

/* ---------- 联系客服 ---------- */
.page-faq .faq-contact {
  background: var(--ink-green-900);
  color: #fff;
  border-radius: var(--radius-l);
  padding: clamp(18px, 2.8vw, 30px);
  margin: 20px 0 6px;
  display: grid;
  gap: 0;
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .14);
}

.page-faq .faq-contact__row:first-child {
  padding-top: 0;
}

.page-faq .faq-contact__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-contact__label {
  flex: none;
  width: 66px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .1em;
  color: var(--warm-gold-300);
}

.page-faq .faq-contact__mail {
  font-family: var(--font-mono);
  font-size: clamp(14px, 2.4vw, 20px);
  color: #fff;
  word-break: break-all;
}

.page-faq .faq-contact__value {
  font-size: 15.5px;
  color: rgba(255, 255, 255, .92);
}

.page-faq .faq-contact .copy-btn {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, .34);
  border-radius: var(--radius-s);
  color: #fff;
  font-size: 12.5px;
  padding: 6px 12px;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-faq .faq-contact .copy-btn:hover {
  border-color: var(--warm-gold-300);
  color: var(--warm-gold-300);
}

.page-faq .faq-contact .copy-btn:focus-visible {
  outline: 2px solid var(--warm-gold-300);
  outline-offset: 2px;
}

.page-faq .faq-contact__status {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--electric-teal);
}

.page-faq .faq-help__sub {
  margin-top: 26px;
  color: var(--ink-green-700);
}

/* ---------- 下一步链接 ---------- */
.page-faq .faq-next {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  padding-bottom: 3px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink-green-700);
  text-decoration: none;
  border-bottom: 1px solid var(--warm-gold-600);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-next span {
  transition: transform var(--dur) var(--ease);
}

.page-faq .faq-next:hover,
.page-faq .faq-next:focus-visible {
  color: var(--warm-gold-600);
}

.page-faq .faq-next:hover span {
  transform: translateX(4px);
}

.page-faq .faq-next:focus-visible,
.page-faq .faq-hero__acts a:focus-visible,
.page-faq .faq-quick a:focus-visible,
.page-faq .faq-rail .toc__link:focus-visible {
  outline: 2px solid var(--warm-gold-600);
  outline-offset: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }

  .page-faq .faq-keypoints {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 980px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 92px;
  }

  .page-faq .faq-section__num {
    margin-bottom: 14px;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: clamp(32px, 4vw, 64px);
  }
}

@media (max-width: 520px) {
  .page-faq .faq-step {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .page-faq .faq-contact__label {
    width: 100%;
  }

  .page-faq .faq-fold__a {
    padding-left: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-next:hover span {
    transform: none;
  }
}