.page-faq {
  --faq-line: rgba(22, 50, 79, .12);
  --faq-soft: rgba(228, 87, 46, .09);
  --faq-ink-soft: rgba(22, 50, 79, .82);
  overflow-x: clip;
}

.page-faq section[id] {
  scroll-margin-top: 84px;
}

.page-faq .breadcrumb {
  margin-bottom: clamp(22px, 4vw, 38px);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding-block: clamp(32px, 5vw, 56px) clamp(48px, 7vw, 84px);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
}

.page-faq .faq-hero h1 {
  margin: 16px 0 0;
  font-size: clamp(36px, 5.6vw, 76px);
  line-height: 1.06;
}

.page-faq .faq-hero .lede {
  margin-top: 20px;
  max-width: 48ch;
}

.page-faq .faq-side-note {
  margin: 0 0 14px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .04em;
  color: rgba(22, 50, 79, .62);
}

.page-faq .jump-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .jump {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 18px;
  border-radius: var(--pill);
  background: var(--card);
  border: 1px solid var(--faq-line);
  color: var(--ink);
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
  transition: transform .22s var(--ease), box-shadow .22s var(--ease), border-color .22s var(--ease);
}

.page-faq .jump::after {
  content: "→";
  color: var(--orange);
  font-weight: 800;
}

.page-faq .jump:hover {
  transform: translateY(-4px);
  border-color: var(--orange);
  box-shadow: var(--shadow-1);
}

.page-faq .jump:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.page-faq .faq-stats {
  list-style: none;
  margin: clamp(30px, 5vw, 52px) 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-faq .faq-stats li {
  display: grid;
  gap: 6px;
  padding-left: 18px;
  border-left: 3px solid var(--clay);
}

.page-faq .faq-stats .num {
  font-size: clamp(22px, 2.8vw, 32px);
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--orange);
}

.page-faq .faq-stat-label {
  font-size: 14px;
  color: rgba(22, 50, 79, .7);
}

/* ---------- 章节头 ---------- */

.page-faq .sec-head {
  max-width: 60ch;
  margin-bottom: clamp(26px, 4vw, 42px);
}

.page-faq .sec-head .h2 {
  margin: 14px 0 0;
}

.page-faq .sec-head .lede {
  margin-top: 14px;
}

.page-faq .sec-head--light .lede {
  color: rgba(251, 244, 233, .78);
}

/* ---------- 步骤条 ---------- */

.page-faq .faq-step-visual {
  margin: 0 0 clamp(32px, 5vw, 52px);
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 1000 / 700;
  background: var(--mist);
}

.page-faq .faq-step-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-faq .steps {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .step {
  position: relative;
  display: flex;
  gap: 18px;
  padding-bottom: 30px;
}

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

.page-faq .step::before {
  content: "";
  position: absolute;
  left: 25px;
  top: 58px;
  bottom: 8px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, rgba(228, 87, 46, .5), rgba(22, 50, 79, .1));
}

.page-faq .step:last-child::before {
  content: none;
}

.page-faq .step-node {
  flex: 0 0 52px;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--orange);
  color: var(--brown);
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 800;
  box-shadow: 0 12px 24px -14px rgba(228, 87, 46, .95);
  transition: transform .22s var(--ease), background .22s var(--ease);
}

.page-faq .step-main {
  flex: 1 1 auto;
  min-width: 0;
  padding-top: 4px;
  display: grid;
  gap: 14px;
}

.page-faq .step-text .h3 {
  margin: 0 0 8px;
  font-size: clamp(18px, 1.8vw, 22px);
}

.page-faq .step-text p {
  margin: 0;
  font-size: 16px;
  color: var(--faq-ink-soft);
}

.page-faq .step-copy,
.page-faq .help-copy {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: var(--pill);
  border: 1px dashed rgba(22, 50, 79, .3);
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: border-color .2s var(--ease), color .2s var(--ease), background .2s var(--ease);
}

.page-faq .step-copy:hover,
.page-faq .help-copy:hover {
  border-color: var(--orange);
  color: var(--orange-deep);
  background: var(--faq-soft);
}

.page-faq .step-copy:focus-visible,
.page-faq .help-copy:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.page-faq .step-copy.is-copied,
.page-faq .help-copy.is-copied {
  border-style: solid;
  border-color: var(--jade);
  color: var(--jade);
}

.page-faq .step-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.page-faq .step-tip {
  display: none;
}

.page-faq .step:hover .step-node {
  transform: translateY(-4px);
}

/* ---------- 三种情况 ---------- */

.page-faq .situ-grid {
  display: grid;
  gap: 20px;
}

.page-faq .situ {
  display: grid;
  align-content: start;
  gap: 12px;
  padding: 26px 24px 28px;
  border-radius: var(--radius-lg);
  background: var(--card);
  border: 1px solid var(--faq-line);
  border-top: 4px solid var(--clay);
  transition: transform .22s var(--ease), box-shadow .22s var(--ease);
}

.page-faq .situ--warm {
  border-top-color: var(--orange);
}

.page-faq .situ--cool {
  border-top-color: var(--ink);
}

.page-faq .situ--jade {
  border-top-color: var(--jade);
}

.page-faq .situ:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-2);
}

.page-faq .situ .h3 {
  margin: 0;
  font-size: clamp(19px, 1.9vw, 23px);
}

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

.page-faq .situ-list {
  margin: 2px 0 0;
  padding-left: 1.1em;
  display: grid;
  gap: 8px;
  font-size: 15px;
  color: rgba(22, 50, 79, .86);
}

.page-faq .situ-list li::marker {
  color: var(--orange);
}

/* ---------- 手风琴问答 ---------- */

.page-faq .qa-list {
  border-top: 1px solid rgba(251, 244, 233, .2);
}

.page-faq .qa {
  border-bottom: 1px solid rgba(251, 244, 233, .2);
  transition: box-shadow .22s var(--ease);
}

.page-faq .qa[open] {
  box-shadow: inset 4px 0 0 var(--orange);
}

.page-faq .qa > summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 22px 12px 22px 22px;
  font-family: var(--font-display);
  font-size: clamp(17px, 1.6vw, 20px);
  font-weight: 700;
  color: var(--paper);
  transition: color .2s var(--ease);
}

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

.page-faq .qa > summary:hover {
  color: var(--clay);
}

.page-faq .qa > summary:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -2px;
}

.page-faq .qa-mark {
  position: relative;
  flex: 0 0 18px;
  width: 18px;
  height: 18px;
  color: var(--clay);
}

.page-faq .qa-mark::before,
.page-faq .qa-mark::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: currentColor;
  border-radius: 2px;
  transform: translate(-50%, -50%);
}

.page-faq .qa-mark::before {
  width: 14px;
  height: 2px;
}

.page-faq .qa-mark::after {
  width: 2px;
  height: 14px;
  transition: transform .22s var(--ease);
}

.page-faq .qa[open] .qa-mark::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.page-faq .qa-answer {
  padding: 0 22px 24px;
}

.page-faq .qa-answer p {
  margin: 0;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(251, 244, 233, .78);
}

.page-faq .qa-answer a {
  color: var(--clay);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .qa-answer a:hover {
  color: var(--paper);
}

/* ---------- 账号安全 ---------- */

.page-faq .security-grid {
  display: grid;
  gap: clamp(26px, 4vw, 50px);
}

.page-faq .security-visual {
  margin: 0;
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 3 / 2;
  background: var(--mist);
}

.page-faq .security-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-faq .security-body .h2 {
  margin: 14px 0 0;
}

.page-faq .security-body .lede {
  margin-top: 14px;
}

.page-faq .security-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-faq .security-list li {
  padding-left: 20px;
  border-left: 2px solid var(--mist);
}

.page-faq .security-list .h3 {
  margin: 0 0 6px;
  font-size: clamp(17px, 1.7vw, 21px);
}

.page-faq .security-list p {
  margin: 0;
  font-size: 15.5px;
  color: var(--faq-ink-soft);
}

.page-faq .security-foot {
  margin: 22px 0 0;
  font-size: 15px;
  color: rgba(22, 50, 79, .7);
}

.page-faq .security-foot a {
  color: var(--orange-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 还需要帮助 ---------- */

.page-faq .faq-help {
  background: linear-gradient(135deg, var(--orange) 0%, var(--orange-deep) 100%);
  color: var(--brown);
}

.page-faq .help-grid {
  display: grid;
  gap: clamp(26px, 4vw, 50px);
}

.page-faq .faq-help .h2 {
  margin: 14px 0 0;
  color: var(--brown);
}

.page-faq .faq-help .help-lead p {
  margin: 16px 0 0;
  font-size: 16.5px;
  line-height: 1.8;
  color: rgba(36, 28, 23, .88);
}

.page-faq .help-actions {
  margin-top: 24px;
}

.page-faq .faq-help .btn--ink {
  background: var(--brown);
  color: var(--paper);
  border-color: var(--brown);
}

.page-faq .faq-help .btn--ink:hover {
  background: #100c0a;
  border-color: #100c0a;
}

.page-faq .help-card {
  display: grid;
  gap: 16px;
  padding: 26px 24px;
  border-radius: var(--radius-lg);
  background: var(--card);
  color: var(--ink);
  box-shadow: var(--shadow-2);
}

.page-faq .help-channel {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 16px;
  border-bottom: 1px dashed rgba(22, 50, 79, .2);
}

.page-faq .help-channel--note {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .help-channel-text {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.page-faq .help-channel-key {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: rgba(22, 50, 79, .58);
}

.page-faq .help-channel-value {
  font-size: 16.5px;
  font-weight: 700;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-faq .help-note {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(22, 50, 79, .72);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq .faq-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 780px) {
  .page-faq .situ-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-faq .step {
    gap: 22px;
    padding-bottom: 34px;
  }

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

  .page-faq .step-actions {
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
  }

  .page-faq .step-tip {
    display: block;
    font-size: 13px;
    color: rgba(22, 50, 79, .55);
    opacity: 0;
    transform: translateY(-4px);
    transition: opacity .22s var(--ease), transform .22s var(--ease);
  }

  .page-faq .step:hover .step-tip,
  .page-faq .step:focus-within .step-tip {
    opacity: 1;
    transform: none;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: end;
  }

  .page-faq .faq-hero-side {
    padding-bottom: 12px;
  }

  .page-faq .security-grid {
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    align-items: center;
  }

  .page-faq .help-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .jump,
  .page-faq .situ,
  .page-faq .step-node,
  .page-faq .step-copy,
  .page-faq .help-copy,
  .page-faq .step-tip {
    transition: none;
  }

  .page-faq .jump:hover,
  .page-faq .situ:hover,
  .page-faq .step:hover .step-node {
    transform: none;
  }

  .page-faq .step-tip {
    opacity: 1;
    transform: none;
  }
}