.page-faq {
  --faq-cream: #FFFCF4;
  --faq-body: #33281F;
  --faq-deep-cyan: #0F8C7E;
  background: var(--ink);
  color: var(--slate);
  font-family: var(--font-body);
}

.page-faq .wrap {
  padding-inline: clamp(16px, 3vw, 32px);
}

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-intro {
  padding: clamp(24px, 5vw, 60px) 0 clamp(20px, 3vw, 34px);
}

.page-faq .faq-intro .crumbs {
  margin-bottom: 18px;
}

.page-faq .faq-intro h1 {
  font-family: var(--font-display);
  font-size: clamp(28px, 5.2vw, 58px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--paper);
  margin: 12px 0 0;
  max-width: 17em;
}

.page-faq .faq-intro__lede {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 60ch;
  font-size: clamp(15px, 1.9vw, 17px);
  line-height: 1.9;
  color: var(--slate);
}

.page-faq .faq-intro__stats {
  list-style: none;
  margin: clamp(22px, 3.4vw, 34px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: clamp(14px, 3vw, 40px);
}

.page-faq .faq-intro__stats li {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-faq .faq-intro__stats .stat {
  font-family: var(--font-data);
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1;
  color: var(--cyan);
  letter-spacing: -0.03em;
}

.page-faq .faq-intro__stats .stat--orange {
  color: var(--orange);
}

.page-faq .faq-intro__stats li > span:last-child {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--slate);
}

/* ---------- 横向信息图 ---------- */

.page-faq .guide-banner {
  padding-bottom: clamp(24px, 4vw, 48px);
}

.page-faq .guide-banner img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 3px solid var(--brown);
  box-shadow: var(--hard);
}

/* ---------- 步骤卡 ---------- */

.page-faq .step-deck {
  padding: clamp(12px, 2vw, 24px) 0 clamp(26px, 4vw, 52px);
}

.page-faq .step-deck__head {
  max-width: 58ch;
}

.page-faq .step-deck__head h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.8vw, 40px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--paper);
  margin: 10px 0 10px;
}

.page-faq .step-deck__head p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--slate);
}

.page-faq .step-track {
  list-style: none;
  margin: clamp(20px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
}

.page-faq .step-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 22px);
  background: var(--panel);
  border: 3px solid var(--brown);
  box-shadow: var(--hard);
  padding: clamp(18px, 2.6vw, 30px);
  outline: 2px solid transparent;
  outline-offset: 3px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, outline-color 0.18s ease;
}

.page-faq .step-card:hover,
.page-faq .step-card:focus-within {
  transform: translateY(-4px);
  box-shadow: 8px 8px 0 var(--brown);
  outline-color: var(--cyan);
}

.page-faq .step-card__no {
  font-family: var(--font-data);
  font-size: clamp(34px, 6vw, 62px);
  font-weight: 700;
  line-height: 0.85;
  letter-spacing: -0.05em;
  color: var(--orange);
}

.page-faq .step-card__body {
  min-width: 0;
}

.page-faq .step-card__title {
  font-family: var(--font-display);
  font-size: clamp(19px, 2.6vw, 24px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 0 0 14px;
}

.page-faq .step-mini {
  list-style: none;
  counter-reset: mini;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-faq .step-mini li {
  position: relative;
  counter-increment: mini;
  padding-left: 34px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .step-mini li::before {
  content: counter(mini, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-data);
  font-size: 11px;
  line-height: 1.5;
  color: var(--cyan);
  border: 1px solid rgba(43, 240, 214, 0.5);
  padding: 0 3px;
}

.page-faq .step-card__note {
  margin: 16px 0 0;
  padding-left: 12px;
  border-left: 2px solid var(--orange);
  font-size: 13px;
  line-height: 1.75;
  color: var(--slate);
}

.page-faq .step-card__demo {
  border: 2px dashed rgba(43, 240, 214, 0.5);
  background: rgba(11, 18, 32, 0.6);
  padding: 16px;
  display: grid;
  gap: 14px;
  align-content: center;
  min-height: 140px;
}

.page-faq .demo-screen {
  display: grid;
  gap: 8px;
}

.page-faq .demo-screen__bar {
  height: 8px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--cyan), rgba(43, 240, 214, 0));
}

.page-faq .demo-screen__row {
  height: 7px;
  border-radius: 2px;
  background: rgba(141, 162, 192, 0.3);
}

.page-faq .demo-screen__row:nth-child(2) {
  width: 68%;
}

.page-faq .demo-screen__row:nth-child(3) {
  width: 86%;
}

.page-faq .demo-screen__row:nth-child(4) {
  width: 54%;
}

.page-faq .demo-caption {
  margin: 0;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

/* ---------- 求助提示带 ---------- */

.page-faq .stuck-band {
  margin: clamp(24px, 4vw, 44px) 0 clamp(8px, 2vw, 16px);
  background: var(--grad);
  border-top: 3px solid var(--brown);
  border-bottom: 3px solid var(--brown);
  padding: clamp(22px, 3.4vw, 38px) 0;
}

.page-faq .stuck-band__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: clamp(12px, 2.4vw, 28px);
}

.page-faq .stuck-band__label {
  margin: 0;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ink);
  background: var(--paper);
  border: 2px solid var(--brown);
  box-shadow: var(--hard-sm);
  padding: 5px 10px;
}

.page-faq .stuck-band h2 {
  margin: 0;
  flex: 1 1 260px;
  font-family: var(--font-display);
  font-size: clamp(18px, 2.6vw, 26px);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.35;
  color: #0B1220;
}

.page-faq .stuck-band p {
  margin: 0;
  flex: 1 1 280px;
  font-size: 14px;
  line-height: 1.85;
  color: #1B0F22;
}

.page-faq .stuck-band a {
  color: #0B1220;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 2px;
}

/* ---------- 问答区 ---------- */

.page-faq .qa-zone {
  background: var(--paper);
  color: var(--faq-body);
  border-top: 3px solid var(--brown);
  border-bottom: 3px solid var(--brown);
  padding: clamp(30px, 5vw, 68px) 0;
  margin-top: clamp(24px, 4vw, 44px);
}

.page-faq .qa-zone .kicker {
  color: var(--faq-deep-cyan);
}

.page-faq .qa-zone h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.8vw, 40px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--ink-text);
  margin: 10px 0 0;
}

.page-faq .qa-layout {
  margin-top: clamp(22px, 3.2vw, 38px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 38px);
}

.page-faq .qa-tags {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .qa-tag {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--ink-text);
  background: var(--faq-cream);
  border: 2px solid var(--brown);
  box-shadow: var(--hard-sm);
  padding: 6px 12px;
}

.page-faq .qa-side {
  margin: 0;
}

.page-faq .qa-side img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 3px solid var(--brown);
  box-shadow: var(--hard-sm);
}

.page-faq .qa-side figcaption {
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.75;
  color: rgba(22, 17, 12, 0.7);
}

.page-faq .qa-list {
  display: grid;
  gap: 12px;
  min-width: 0;
}

.page-faq .qa-item {
  background: var(--faq-cream);
  border: 2px solid var(--brown);
  box-shadow: 3px 3px 0 var(--brown);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.page-faq .qa-item:hover {
  transform: translateY(-2px);
  box-shadow: 5px 5px 0 var(--brown);
}

.page-faq .qa-item > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 14px 16px;
  border-left: 5px solid var(--faq-deep-cyan);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(15px, 1.9vw, 17px);
  line-height: 1.55;
  color: var(--ink-text);
}

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

.page-faq .qa-item > summary::after {
  content: "＋";
  margin-left: auto;
  font-family: var(--font-data);
  font-size: 16px;
  color: var(--faq-deep-cyan);
}

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

.page-faq .qa-item__tag {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--faq-deep-cyan);
  border: 1px solid var(--faq-deep-cyan);
  padding: 2px 7px;
  white-space: nowrap;
}

.page-faq .qa-item__q {
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .qa-item__a {
  padding: 2px 18px 18px 21px;
  border-left: 5px solid var(--faq-deep-cyan);
  font-size: 15px;
  line-height: 1.9;
  color: var(--faq-body);
}

.page-faq .qa-item__a p {
  margin: 0 0 10px;
}

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

/* ---------- 人工支持 ---------- */

.page-faq .support-zone {
  padding: clamp(34px, 5vw, 76px) 0 clamp(28px, 4vw, 56px);
}

.page-faq .support-zone h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 38px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--paper);
  margin: 10px 0 0;
  max-width: 22em;
}

.page-faq .support-grid {
  margin-top: clamp(20px, 3vw, 34px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 22px);
}

.page-faq .support-card {
  display: grid;
  gap: 10px;
  align-content: start;
  background: var(--panel);
  border: 3px solid var(--brown);
  box-shadow: var(--hard-sm);
  padding: clamp(16px, 2.2vw, 24px);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.page-faq .support-card:hover {
  transform: translateY(-4px);
  box-shadow: 6px 6px 0 var(--brown);
}

.page-faq .support-card__no {
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--orange);
}

.page-faq .support-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(17px, 2.2vw, 20px);
  font-weight: 800;
  color: var(--paper);
  letter-spacing: -0.01em;
}

.page-faq .support-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--slate);
}

.page-faq .support-card a {
  justify-self: start;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 2px solid rgba(43, 240, 214, 0.4);
  padding-bottom: 2px;
  transition: border-color 0.18s ease;
}

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

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq .step-mini {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (min-width: 860px) {
  .page-faq .step-card {
    grid-template-columns: 86px minmax(0, 1fr) minmax(200px, 280px);
    align-items: start;
  }

  .page-faq .step-card__no {
    font-size: clamp(44px, 4.4vw, 62px);
  }
}

@media (min-width: 920px) {
  .page-faq .qa-layout {
    grid-template-columns: 268px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .qa-rail {
    position: sticky;
    top: 24px;
  }
}

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

@media (max-width: 639px) {
  .page-faq .faq-intro__stats {
    gap: 14px 26px;
  }

  .page-faq .stuck-band__inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .page-faq .qa-item > summary {
    padding: 13px 14px;
  }

  .page-faq .qa-item__a {
    padding: 2px 14px 16px 19px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .step-card,
  .page-faq .qa-item,
  .page-faq .support-card,
  .page-faq .support-card a {
    transition: none;
  }

  .page-faq .step-card:hover,
  .page-faq .step-card:focus-within,
  .page-faq .qa-item:hover,
  .page-faq .support-card:hover {
    transform: none;
  }
}