.page-faq {
  --faq-bg: rgba(255, 255, 255, .028);
  --faq-line: var(--steel);
  --faq-c1: var(--cyan);
  --faq-c2: var(--green);
  --faq-c3: var(--orange);
  --faq-c4: var(--amber);
  --faq-c5: #9B7BFF;
  --faq-c6: #FF5C8A;
  display: block;
}

.page-faq p {
  margin: 0;
}

/* ============ 首屏：搜索为主角 ============ */
.page-faq .faq-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-bottom: 3px solid var(--faq-line);
  padding-block: clamp(28px, 4vw, 44px) clamp(40px, 5.6vw, 76px);
}

.page-faq .faq-hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-faq .faq-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .24;
  filter: saturate(.55) contrast(1.15);
}

.page-faq .faq-hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(6, 11, 26, .74) 0%, rgba(10, 17, 40, .9) 62%, var(--ink) 100%);
}

.page-faq .faq-hero-inner {
  display: flex;
  flex-direction: column;
  gap: 18px;
  max-width: 940px;
}

.page-faq .faq-hero-label {
  color: var(--cyan);
  margin: 0;
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 5.4vw, 62px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--bone);
  text-transform: none;
}

.page-faq .faq-hero-lede {
  max-width: 62ch;
  color: var(--mist);
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.7;
}

/* 搜索框 */
.page-faq .faq-search-block {
  margin-top: 6px;
}

.page-faq .faq-search {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 6px 6px 16px;
  border: 2px solid var(--faq-line);
  background: rgba(6, 11, 26, .78);
  box-shadow: var(--hard);
  transition: border-color var(--t-base), box-shadow var(--t-base);
}

.page-faq .faq-search:focus-within {
  border-color: var(--cyan);
  box-shadow: 8px 8px 0 rgba(0, 229, 255, .26), inset 0 0 24px rgba(0, 229, 255, .14);
}

.page-faq .faq-search-mark {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  color: var(--cyan);
}

.page-faq .faq-search-mark svg {
  width: 100%;
  height: 100%;
  display: block;
}

.page-faq .faq-search-input {
  flex: 1 1 auto;
  min-width: 0;
  padding: 14px 0;
  border: 0;
  outline: none;
  background: transparent;
  color: var(--bone);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
}

.page-faq .faq-search-input::placeholder {
  color: rgba(199, 211, 224, .55);
}

.page-faq .faq-search-submit {
  flex: 0 0 auto;
  white-space: nowrap;
}

.page-faq .faq-search-hint {
  margin-top: 12px;
  color: rgba(199, 211, 224, .68);
  font-size: 13px;
  line-height: 1.6;
}

/* 高频词 */
.page-faq .faq-keys {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-top: 4px;
}

.page-faq .faq-keys-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-faq .faq-keys-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* ============ 分类 ============ */
.page-faq .faq-cats-layout {
  align-items: start;
  gap: clamp(24px, 3.4vw, 44px);
}

.page-faq .faq-cats-figure {
  margin: 0;
}

.page-faq .faq-cats-media {
  border: 2px solid var(--faq-line);
  box-shadow: var(--hard);
}

.page-faq .faq-cats-figure .media-frame-cap {
  margin-top: 14px;
  color: rgba(199, 211, 224, .7);
  font-size: 13px;
  line-height: 1.6;
}

.page-faq .faq-cat-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-cat {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border: 2px solid var(--faq-line);
  background: var(--faq-bg);
  box-shadow: 6px 6px 0 rgba(0, 0, 0, .55);
  color: inherit;
  text-decoration: none;
  transition: border-color var(--t-base), box-shadow var(--t-base), transform var(--t-base), background var(--t-base);
}

.page-faq .faq-cat:hover,
.page-faq .faq-cat:focus-visible {
  border-color: var(--cat-accent, var(--cyan));
  box-shadow: 10px 10px 0 rgba(0, 0, 0, .5);
  transform: translate(-2px, -2px);
  background: rgba(255, 255, 255, .05);
}

.page-faq .faq-cat--c1 { --cat-accent: var(--faq-c1); }
.page-faq .faq-cat--c2 { --cat-accent: var(--faq-c2); }
.page-faq .faq-cat--c3 { --cat-accent: var(--faq-c3); }
.page-faq .faq-cat--c4 { --cat-accent: var(--faq-c4); }
.page-faq .faq-cat--c5 { --cat-accent: var(--faq-c5); }
.page-faq .faq-cat--c6 { --cat-accent: var(--faq-c6); }

.page-faq .faq-cat-icon {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border: 2px solid var(--cat-accent, var(--cyan));
  color: var(--cat-accent, var(--cyan));
  background: rgba(0, 0, 0, .3);
}

.page-faq .faq-cat-icon svg {
  width: 20px;
  height: 20px;
  display: block;
}

.page-faq .faq-cat-body {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.page-faq .faq-cat-name {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--bone);
}

.page-faq .faq-cat-desc {
  font-size: 13px;
  line-height: 1.55;
  color: rgba(199, 211, 224, .72);
}

.page-faq .faq-cat-badge {
  display: inline-flex;
  align-items: baseline;
  gap: 3px;
  padding: 5px 9px;
  border: 1px solid var(--cat-accent, var(--cyan));
  color: var(--cat-accent, var(--cyan));
  font-size: 12px;
  white-space: nowrap;
}

.page-faq .faq-cat-badge .mono {
  font-size: 15px;
  font-weight: 700;
}

.page-faq .faq-cat-unit {
  font-size: 11px;
  opacity: .8;
}

/* ============ 问答组 ============ */
.page-faq .faq-groups {
  display: flex;
  flex-direction: column;
  gap: clamp(28px, 3.6vw, 46px);
}

.page-faq .faq-group {
  scroll-margin-top: 150px;
}

.page-faq .faq-group-title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(15px, 1.7vw, 19px);
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--bone);
}

.page-faq .faq-group-title .mono {
  display: inline-grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border: 2px solid var(--cyan);
  color: var(--cyan);
  font-size: 12px;
  font-weight: 700;
}

.page-faq .faq-accordion {
  border: 2px solid var(--faq-line);
  background: rgba(6, 11, 26, .55);
  box-shadow: var(--hard);
}

.page-faq .faq-accordion .accordion-item + .accordion-item {
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-accordion .accordion-trigger {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 18px 20px;
  border: 0;
  background: transparent;
  color: var(--bone);
  font-family: var(--font-body);
  font-size: clamp(15px, 1.6vw, 17px);
  font-weight: 600;
  line-height: 1.55;
  text-align: left;
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast);
}

.page-faq .faq-accordion .accordion-trigger:hover {
  background: rgba(0, 229, 255, .07);
}

.page-faq .faq-accordion .accordion-trigger::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1.1;
  color: var(--cyan);
}

.page-faq .faq-accordion .accordion-trigger[aria-expanded="true"] {
  color: var(--bone);
}

.page-faq .faq-accordion .accordion-trigger[aria-expanded="true"]::after {
  content: "−";
  color: var(--green);
}

.page-faq .faq-accordion .accordion-item:has(.accordion-trigger[aria-expanded="true"]) {
  background: rgba(57, 255, 20, .05);
  box-shadow: inset 4px 0 0 var(--green);
}

.page-faq .faq-accordion .accordion-panel-inner {
  padding: 0 20px 20px;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.75;
  max-width: 70ch;
}

/* ============ 数据带 ============ */
.page-faq .faq-band {
  border-block: 3px solid var(--faq-line);
}

.page-faq .faq-band-label {
  color: var(--green);
  margin: 0 0 18px;
}

.page-faq .faq-band-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-faq .faq-band-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding-left: 16px;
  border-left: 2px solid rgba(0, 229, 255, .45);
}

.page-faq .faq-band-num {
  display: inline-flex;
  align-items: baseline;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: clamp(38px, 6vw, 62px);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-band-unit {
  font-size: 16px;
  color: var(--mist);
}

.page-faq .faq-band-text {
  font-size: 14px;
  line-height: 1.55;
  color: var(--mist);
}

/* ============ 状态读法 ============ */
.page-faq .faq-read-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-faq .faq-read-card {
  padding: 20px;
  border: 2px solid var(--faq-line);
  background: var(--faq-bg);
  box-shadow: 6px 6px 0 rgba(0, 0, 0, .55);
}

.page-faq .faq-read-card h3 {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--bone);
}

.page-faq .faq-read-card p {
  font-size: 14px;
  line-height: 1.72;
  color: rgba(199, 211, 224, .82);
}

.page-faq .faq-read-note {
  margin-top: 26px;
  padding: 20px 22px;
  border-left: 4px solid var(--amber);
  background: rgba(255, 194, 75, .07);
}

.page-faq .faq-read-note .label {
  color: var(--amber);
  margin-bottom: 8px;
}

.page-faq .faq-read-note p:last-child {
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

/* ============ 操作步骤 ============ */
.page-faq .faq-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 2px solid var(--faq-line);
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  padding: 22px 0;
  border-bottom: 2px solid var(--faq-line);
}

.page-faq .faq-step-num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 700;
  line-height: 1;
  color: rgba(0, 229, 255, .5);
}

.page-faq .faq-step-body h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(17px, 2vw, 22px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--bone);
}

.page-faq .faq-step-body p {
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.72;
  color: rgba(199, 211, 224, .84);
}

.page-faq .faq-nav-links {
  margin-top: 24px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(199, 211, 224, .72);
}

.page-faq .faq-nav-links a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-nav-links a:hover {
  color: var(--green);
}

/* ============ 求助 ============ */
.page-faq .faq-solve-panel {
  padding: clamp(26px, 4vw, 48px);
  border: 3px solid var(--orange);
  background: linear-gradient(135deg, rgba(255, 107, 53, .12) 0%, rgba(6, 11, 26, .8) 60%);
  box-shadow: 10px 10px 0 rgba(0, 0, 0, .55);
}

.page-faq .faq-solve-tag {
  color: var(--orange);
  margin: 0 0 12px;
}

.page-faq .faq-solve-panel h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.2vw, 38px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -.02em;
  color: var(--bone);
}

.page-faq .faq-solve-panel > p {
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

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

.page-faq .faq-solve-foot {
  margin-top: 18px;
  font-size: 13px;
  line-height: 1.65;
  color: rgba(199, 211, 224, .7);
}

/* ============ 响应式 ============ */
@media (min-width: 640px) {
  .page-faq .faq-cat-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-faq .faq-band-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }

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

@media (min-width: 900px) {
  .page-faq .faq-cats-layout.grid--4-8 {
    display: grid;
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  }

  .page-faq .faq-search {
    padding-left: 20px;
  }

  .page-faq .faq-search-submit {
    padding-inline: 28px;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-cat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (max-width: 899px) {
  .page-faq .faq-cats-figure {
    display: none;
  }
}

@media (max-width: 560px) {
  .page-faq .faq-search {
    flex-wrap: wrap;
    padding: 12px 14px;
  }

  .page-faq .faq-search-input {
    flex: 1 1 100%;
    order: 2;
    padding: 6px 0 10px;
  }

  .page-faq .faq-search-mark {
    order: 1;
  }

  .page-faq .faq-search-submit {
    order: 3;
    flex: 1 1 100%;
    justify-content: center;
  }

  .page-faq .faq-cat {
    grid-template-columns: auto 1fr;
    row-gap: 10px;
  }

  .page-faq .faq-cat-badge {
    grid-column: 2;
    justify-self: start;
  }
}

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

  .page-faq .faq-cat:hover {
    transform: none;
  }
}