.page-faq {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.9;
  overflow-x: hidden;
  --faq-gap: clamp(56px, 8vw, 104px);
  --faq-radius: 4px;
}

.page-faq .prose {
  max-width: 38em;
}

/* ===== Hero ===== */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(28px, 5vw, 56px) 0 clamp(40px, 6vw, 76px);
  background-image:
    radial-gradient(circle at 90% 14%, rgba(138, 111, 209, 0.20), transparent 56%),
    radial-gradient(circle at 2% 84%, rgba(30, 127, 168, 0.14), transparent 54%);
  background-repeat: no-repeat;
}

.page-faq .faq-hero__inner {
  position: relative;
}

.page-faq .faq-hero__kicker {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--sand-ink);
}

.page-faq .faq-hero h1 {
  margin: 0 0 22px;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(36px, 9.5vw, 84px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  max-width: 14em;
}

.page-faq .faq-hero__lede {
  margin: 0 0 30px;
  max-width: 34em;
  color: var(--muted);
  font-size: 17px;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero__note {
  margin: 34px 0 0;
  display: inline-block;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: 13px;
  letter-spacing: 0.22em;
  color: var(--lake-pale);
  transform: rotate(-6deg);
  transform-origin: left center;
  border-bottom: 2px solid var(--sand);
  padding-bottom: 4px;
}

/* ===== 章节通用 ===== */
.page-faq .section {
  padding: clamp(34px, 6vw, 64px) 0;
}

.page-faq .section-head {
  margin-bottom: 22px;
}

.page-faq .section-num {
  margin: 0 0 6px;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--sand-ink);
}

.page-faq .section-title {
  position: relative;
  margin: 0;
  padding-left: 14px;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(25px, 5vw, 40px);
  line-height: 1.24;
  letter-spacing: -0.01em;
}

.page-faq .section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.18em;
  bottom: 0.18em;
  width: 4px;
  background: var(--sand);
}

.page-faq .lede {
  margin: 0 0 32px;
  color: var(--muted);
}

/* ===== 01 三步走 ===== */
.page-faq .faq-step-list {
  display: grid;
  gap: 0;
}

.page-faq .faq-step {
  display: grid;
  gap: 14px;
  padding: clamp(22px, 4vw, 34px) 0;
  border-top: 2px solid var(--line);
}

.page-faq .faq-step:last-child {
  border-bottom: 2px solid var(--line);
}

.page-faq .faq-step__head {
  display: flex;
  align-items: baseline;
  gap: 16px;
}

.page-faq .faq-step__num {
  font-size: clamp(42px, 9vw, 68px);
  font-weight: 700;
  line-height: 0.9;
  color: transparent;
  -webkit-text-stroke: 2px var(--sand);
  letter-spacing: 0;
  flex: none;
}

@supports not ((-webkit-text-stroke: 1px black)) {
  .page-faq .faq-step__num {
    color: var(--sand-ink);
  }
}

.page-faq .faq-step__name {
  margin: 0;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(19px, 3.4vw, 24px);
  line-height: 1.35;
}

.page-faq .faq-step__body p {
  margin: 0 0 12px;
  max-width: 38em;
}

.page-faq .faq-step__tip {
  margin: 0;
  padding: 10px 14px;
  border-left: 4px solid var(--lake-pale);
  background: rgba(168, 211, 226, 0.24);
  color: var(--lake-deep);
  font-size: 15px;
  max-width: 38em;
}

.page-faq .faq-figure {
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 10px;
  border: 2px solid var(--lake);
  border-left: 4px solid var(--sand);
  background: var(--paper);
  box-shadow: var(--stack-shadow);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: 2px;
}

.page-faq .faq-figure__cap {
  display: block;
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

/* ===== 02 记录存在哪里 ===== */
.page-faq .faq-record {
  padding: var(--faq-gap) 0;
  background: linear-gradient(180deg, rgba(168, 211, 226, 0.34), rgba(168, 211, 226, 0.12));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-record__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-faq .faq-record__card {
  position: relative;
  padding: 22px 20px 24px;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: var(--faq-radius);
}

.page-faq .faq-record__card::after {
  content: "";
  position: absolute;
  right: 0;
  top: 18px;
  width: 4px;
  height: 26px;
  background: var(--lake);
}

.page-faq .faq-record__card h3 {
  margin: 0 0 10px;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: 18px;
  line-height: 1.4;
}

.page-faq .faq-record__card p {
  margin: 0;
  color: var(--muted);
  font-size: 15.5px;
}

/* ===== 03 反馈 ===== */
.page-faq .faq-feedback {
  position: relative;
  padding: var(--faq-gap) 0;
  background: var(--ink-deep);
  color: var(--paper);
  background-image: repeating-linear-gradient(115deg, rgba(168, 211, 226, 0.07) 0 1px, transparent 1px 28px);
}

.page-faq .faq-feedback .section-num {
  color: var(--sand);
}

.page-faq .faq-feedback .section-title::before {
  background: var(--flag);
}

.page-faq .feedback-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-faq .feedback-copy > p {
  margin: 0 0 20px;
  max-width: 38em;
  color: rgba(245, 242, 234, 0.84);
}

.page-faq .topic-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.page-faq .topic-chips .tag {
  border: 1px solid rgba(245, 242, 234, 0.32);
  background: rgba(245, 242, 234, 0.06);
  color: var(--paper);
  transition: transform 200ms var(--ease), border-color 200ms var(--ease);
}

.page-faq .topic-chips .tag:hover,
.page-faq .topic-chips .tag:focus-visible {
  transform: translateY(-3px);
  border-color: var(--sand);
}

.page-faq .feedback-needs {
  margin: 0 0 22px;
  padding: 0 0 0 0;
  list-style: none;
  max-width: 38em;
}

.page-faq .feedback-needs li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 8px;
  color: rgba(245, 242, 234, 0.8);
  font-size: 15.5px;
  line-height: 1.75;
}

.page-faq .feedback-needs li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.7em;
  width: 10px;
  height: 10px;
  background: var(--sand);
  transform: rotate(45deg) scale(0.7);
}

.page-faq .feedback-reach {
  margin: 0 0 20px;
  max-width: 38em;
  color: rgba(245, 242, 234, 0.84);
}

.page-faq .feedback-reach a {
  color: var(--lake-pale);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .feedback-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 22px;
}

.page-faq .feedback-actions .copy-btn {
  border-color: rgba(245, 242, 234, 0.4);
  color: var(--paper);
  background: transparent;
}

.page-faq .feedback-rate {
  margin: 0;
  padding-top: 18px;
  border-top: 1px solid rgba(245, 242, 234, 0.2);
  max-width: 38em;
  font-size: 15px;
  color: rgba(245, 242, 234, 0.68);
}

.page-faq .feedback-figure {
  margin: 0;
  padding: 12px;
  border: 2px solid rgba(168, 211, 226, 0.42);
  border-top: 4px solid var(--flag);
  background: rgba(245, 242, 234, 0.04);
  border-radius: var(--faq-radius);
}

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

.page-faq .feedback-figure figcaption {
  display: block;
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--lake-pale);
  text-align: center;
}

.page-faq .topic-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: clamp(30px, 5vw, 50px);
}

.page-faq .topic-card {
  padding: 20px 18px 22px;
  border: 1px solid rgba(245, 242, 234, 0.24);
  border-left: 4px solid var(--sand);
  background: rgba(75, 58, 115, 0.32);
  border-radius: var(--faq-radius);
  scroll-margin-top: 120px;
}

.page-faq .topic-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: 17px;
  color: var(--paper);
}

.page-faq .topic-card p {
  margin: 0;
  font-size: 15px;
  color: rgba(245, 242, 234, 0.76);
}

/* ===== 04 找不到栏目 ===== */
.page-faq .find-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-faq .find-card {
  position: relative;
  padding: 24px 20px 24px 22px;
  border: 2px solid var(--line-strong);
  border-radius: var(--faq-radius);
  background: var(--paper);
}

.page-faq .find-card__idx {
  display: inline-block;
  margin-bottom: 10px;
  padding: 2px 10px;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--paper);
  background: var(--lake);
  border-radius: 2px;
}

.page-faq .find-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: 18px;
  line-height: 1.4;
}

.page-faq .find-card p {
  margin: 0;
  color: var(--muted);
  font-size: 15.5px;
}

.page-faq .find-tail {
  margin: 26px 0 0;
  max-width: 38em;
  color: var(--muted);
  font-size: 15.5px;
}

.page-faq .find-tail a,
.page-faq .tip-tail a,
.page-faq .faq-device__hint a {
  color: var(--lake-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .find-tail a:hover,
.page-faq .tip-tail a:hover,
.page-faq .faq-device__hint a:hover {
  color: var(--dusk-bright);
}

/* ===== 05 换设备 ===== */
.page-faq .faq-device {
  padding: clamp(40px, 6vw, 68px) 0;
  background: var(--paper-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-device__body p {
  max-width: 38em;
  margin: 0 0 16px;
}

.page-faq .faq-device__lead {
  font-family: var(--font-title);
  font-weight: 900;
  font-size: clamp(18px, 3.2vw, 21px);
  line-height: 1.55;
  color: var(--ink);
  padding-left: 16px;
  border-left: 4px solid var(--lake);
}

.page-faq .faq-device__hint {
  font-size: 15.5px;
  color: var(--muted);
}

/* ===== 06 常见疑问 ===== */
.page-faq .faq-qa {
  display: grid;
  gap: 0;
  border-top: 2px solid var(--line-strong);
}

.page-faq .qa {
  border-bottom: 1px solid var(--line);
  background: transparent;
}

.page-faq .qa summary {
  position: relative;
  padding: 18px 44px 18px 4px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: 16.5px;
  line-height: 1.55;
  color: var(--ink);
}

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

.page-faq .qa summary::after {
  content: "+";
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
  color: var(--sand-ink);
  transition: transform 200ms var(--ease);
}

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

.page-faq .qa summary:hover {
  color: var(--lake-deep);
}

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

.page-faq .qa__body {
  padding: 0 4px 20px;
}

.page-faq .qa__body p {
  margin: 0;
  max-width: 38em;
  color: var(--muted);
  font-size: 15.5px;
}

/* ===== 07 小贴士 ===== */
.page-faq .faq-tips {
  padding: var(--faq-gap) 0;
  background: linear-gradient(180deg, rgba(30, 127, 168, 0.10), rgba(75, 58, 115, 0.08));
}

.page-faq .tip-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-faq .tip-card {
  padding: 22px 20px;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  border-radius: var(--faq-radius);
  box-shadow: var(--stack-shadow);
  transition: transform 200ms var(--ease), box-shadow 200ms var(--ease);
}

.page-faq .tip-card:hover {
  transform: translateY(-4px);
  box-shadow: 10px 10px 0 0 var(--paper-2);
}

.page-faq .tip-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-title);
  font-weight: 900;
  font-size: 17px;
  line-height: 1.45;
}

.page-faq .tip-card p {
  margin: 0;
  color: var(--muted);
  font-size: 15.5px;
}

.page-faq .tip-tail {
  margin: 30px 0 0;
  max-width: 38em;
  color: var(--muted);
  font-size: 15.5px;
}

/* ===== 平板 ===== */
@media (min-width: 700px) {
  .page-faq .faq-record__grid,
  .page-faq .find-grid,
  .page-faq .tip-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

/* ===== 桌面 ===== */
@media (min-width: 1000px) {
  .page-faq .faq-hero {
    padding-top: clamp(48px, 6vw, 84px);
  }

  .page-faq .faq-step {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 64px);
    align-items: start;
  }

  .page-faq .faq-step__head {
    flex-direction: column;
    gap: 14px;
  }

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

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

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

  .page-faq .topic-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .feedback-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(32px, 4vw, 60px);
  }

  .page-faq .feedback-figure {
    position: sticky;
    top: 110px;
  }

  .page-faq .faq-figure {
    padding: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .tip-card,
  .page-faq .topic-chips .tag {
    transition: none;
  }

  .page-faq .tip-card:hover,
  .page-faq .topic-chips .tag:hover {
    transform: none;
  }
}