.page-faq {
  --faq-gap: 16px;
  --faq-pad: clamp(16px, 4vw, 44px);
  --faq-radius: 6px;
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-body);
  overflow-x: clip;
  padding-bottom: clamp(40px, 6vw, 84px);
}

.page-faq .shell {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--faq-pad);
}

/* 面包屑 */
.page-faq .breadcrumbs {
  padding: 20px 0 4px;
}

.page-faq .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.page-faq .breadcrumbs a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-hover) var(--ease), border-color var(--t-hover) var(--ease);
}

.page-faq .breadcrumbs a:hover,
.page-faq .breadcrumbs a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .breadcrumbs li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--line);
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  padding: 6px 0 clamp(28px, 5vw, 58px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -80px;
  left: 0;
  right: 0;
  height: 420px;
  background:
    radial-gradient(58% 60% at 18% 0%, rgba(124, 58, 237, 0.24), transparent 70%),
    radial-gradient(46% 52% at 88% 8%, rgba(34, 211, 238, 0.14), transparent 70%);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-faq .faq-hero__intro {
  min-width: 0;
}

.page-faq .label {
  display: inline-block;
  color: var(--cyan);
}

.page-faq .faq-hero h1 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 6vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  transform: skewX(-6deg);
  transform-origin: left bottom;
  background: linear-gradient(100deg, var(--white) 24%, var(--cyan) 74%, var(--magenta) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-faq .faq-hero__lede {
  margin: 18px 0 0;
  max-width: 36em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

/* 场景标签 */
.page-faq .scene-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-faq .scene-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: color var(--t-hover) var(--ease), border-color var(--t-hover) var(--ease), box-shadow var(--t-hover) var(--ease), transform var(--t-hover) var(--ease);
}

.page-faq .scene-chip:hover,
.page-faq .scene-chip:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
  box-shadow: 0 0 0 1px rgba(34, 211, 238, 0.3), 0 0 22px -8px var(--cyan);
  transform: translateY(-1px);
}

.page-faq .scene-chip__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex: none;
}

.page-faq .scene-chip__dot--violet {
  background: var(--violet);
  box-shadow: 0 0 10px var(--violet);
}

.page-faq .scene-chip__dot--magenta {
  background: var(--magenta);
  box-shadow: 0 0 10px var(--magenta);
}

.page-faq .scene-chip__dot--amber {
  background: var(--amber);
  box-shadow: 0 0 10px var(--amber);
}

/* 首屏数据 */
.page-faq .hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 26px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

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

.page-faq .hero-stat__label {
  order: 2;
  font-size: 11px;
  line-height: 1.5;
  color: var(--muted);
}

.page-faq .hero-stat__num {
  order: 1;
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(1.05rem, 3.6vw, 1.55rem);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
}

/* 首屏图 */
.page-faq .faq-hero__media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  overflow: hidden;
  background: var(--cabin);
  box-shadow: 0 28px 70px -50px rgba(34, 211, 238, 0.8);
}

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

.page-faq .faq-hero__shot::after,
.page-faq .faq-shot__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0 1px, transparent 1px 5px);
  pointer-events: none;
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-faq .media-frame__caption {
  display: block;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: var(--muted);
}

/* 场景选择 */
.page-faq .scene-pick {
  padding: clamp(30px, 5vw, 56px) 0;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, var(--cabin) 0%, var(--ink) 100%);
}

.page-faq .scene-pick__head {
  display: grid;
  gap: 8px;
  max-width: 46em;
}

.page-faq .scene-pick .section-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.6vw, 2.1rem);
  line-height: 1.25;
}

.page-faq .scene-pick__lede {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .scene-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
  margin-top: clamp(20px, 3vw, 30px);
}

.page-faq .scene-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 18px 18px;
  border: 1px solid var(--line);
  border-left-width: 3px;
  border-radius: var(--faq-radius);
  background: var(--panel);
  color: inherit;
  text-decoration: none;
  transition: transform var(--t-hover) var(--ease), border-color var(--t-hover) var(--ease), box-shadow var(--t-hover) var(--ease);
}

.page-faq .scene-card--violet {
  border-left-color: var(--violet);
}

.page-faq .scene-card--magenta {
  border-left-color: var(--magenta);
}

.page-faq .scene-card--amber {
  border-left-color: var(--amber);
}

.page-faq .scene-card:hover,
.page-faq .scene-card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--cyan);
  box-shadow: 0 20px 44px -34px var(--cyan);
}

.page-faq .scene-card .label {
  color: var(--muted);
}

.page-faq .scene-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.35;
}

.page-faq .scene-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .scene-card__go {
  margin-top: auto;
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

/* 问答主体双栏 */
.page-faq .faq-body {
  padding: clamp(30px, 5vw, 60px) 0 clamp(20px, 3vw, 40px);
}

.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 40px);
  align-items: start;
}

.page-faq .faq-index {
  padding: 16px 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: var(--cabin);
}

.page-faq .faq-index__list {
  display: grid;
  gap: 6px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 7px 8px;
  border: 1px solid transparent;
  border-radius: 3px;
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  transition: color var(--t-hover) var(--ease), background var(--t-hover) var(--ease), border-color var(--t-hover) var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--white);
  background: var(--panel);
  border-color: var(--line);
}

.page-faq .faq-index__list .data-num {
  font-size: 11px;
  color: var(--cyan);
}

.page-faq .faq-index__note {
  margin: 14px 0 0;
  font-size: 12px;
  line-height: 1.7;
  color: var(--muted);
}

.page-faq .faq-groups {
  min-width: 0;
}

/* 分组 */
.page-faq .faq-group {
  scroll-margin-top: 88px;
}

.page-faq .faq-group + .faq-group {
  margin-top: clamp(34px, 5vw, 56px);
}

.page-faq .faq-group__head {
  margin-bottom: 16px;
  padding-left: 14px;
  border-left: 2px solid var(--violet);
}

.page-faq .faq-group--cyan .faq-group__head {
  border-left-color: var(--cyan);
}

.page-faq .faq-group--magenta .faq-group__head {
  border-left-color: var(--magenta);
}

.page-faq .faq-group--amber .faq-group__head {
  border-left-color: var(--amber);
}

.page-faq .faq-group--green .faq-group__head {
  border-left-color: var(--green);
}

.page-faq .faq-group__head .label {
  color: var(--muted);
}

.page-faq .faq-group__title {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.3rem, 3.4vw, 1.7rem);
  line-height: 1.3;
}

.page-faq .faq-group__lede {
  margin: 8px 0 0;
  max-width: 40em;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* 折叠问答 */
.page-faq .qa {
  margin-top: 10px;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background: var(--panel);
  overflow: hidden;
  transition: border-color var(--t-hover) var(--ease), background var(--t-hover) var(--ease);
}

.page-faq .qa[open] {
  border-color: rgba(124, 58, 237, 0.55);
  background: var(--cabin);
}

.page-faq .qa__q {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 15px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--white);
  transition: color var(--t-hover) var(--ease);
}

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

.page-faq .qa__q:hover,
.page-faq .qa__q:focus-visible {
  color: var(--cyan);
}

.page-faq .qa__q::after {
  content: "+";
  flex: none;
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--cyan);
}

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

.page-faq .qa__idx {
  flex: none;
  font-size: 11px;
  color: var(--muted);
}

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

.page-faq .qa__a {
  padding: 2px 15px 16px;
}

.page-faq .steps {
  counter-reset: faqstep;
  display: grid;
  gap: 9px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .steps li {
  position: relative;
  padding-left: 32px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .steps li::before {
  counter-increment: faqstep;
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 3px;
  padding: 1px 4px;
  border: 1px solid var(--line);
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--cyan);
}

.page-faq .qa__hint {
  margin: 12px 0 0;
  padding: 9px 12px;
  border-left: 2px solid var(--amber);
  border-radius: 0 3px 3px 0;
  background: rgba(251, 191, 36, 0.07);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* 检查表 */
.page-faq .checklist {
  display: grid;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .checklist li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--panel);
  font-size: 14px;
  color: var(--white);
  transition: border-color var(--t-hover) var(--ease);
}

.page-faq .checklist li:hover {
  border-color: rgba(45, 212, 191, 0.5);
}

.page-faq .checklist input[type="checkbox"] {
  flex: none;
  width: 16px;
  height: 16px;
  margin: 0;
  accent-color: var(--green);
  cursor: pointer;
}

.page-faq .checklist label {
  flex: 1 1 auto;
  min-width: 0;
  line-height: 1.6;
  cursor: pointer;
}

.page-faq .checklist input:checked + label {
  color: var(--muted);
  text-decoration: line-through;
}

.page-faq .checklist__meta {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--amber);
}

/* 维护配图 */
.page-faq .faq-shot {
  margin: 20px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  overflow: hidden;
  background: var(--cabin);
}

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

.page-faq .faq-shot img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

/* 还没解决 */
.page-faq .faq-help {
  padding: clamp(24px, 4vw, 44px) 0 clamp(36px, 6vw, 72px);
}

.page-faq .faq-help__panel {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 4vw, 40px);
  border: 1px solid var(--line);
  border-radius: var(--faq-radius);
  background:
    radial-gradient(120% 140% at 0% 0%, rgba(124, 58, 237, 0.22), transparent 62%),
    radial-gradient(120% 140% at 100% 100%, rgba(34, 211, 238, 0.14), transparent 62%),
    var(--cabin);
}

.page-faq .faq-help__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.page-faq .faq-help__title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.3rem, 3.6vw, 1.85rem);
  line-height: 1.3;
}

.page-faq .faq-help__lede {
  margin: 12px 0 0;
  max-width: 36em;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .help-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.page-faq .faq-help__links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin: 16px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.page-faq .faq-help__links a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 2px;
  transition: color var(--t-hover) var(--ease), border-color var(--t-hover) var(--ease);
}

.page-faq .faq-help__links a:hover,
.page-faq .faq-help__links a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .help-contacts {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  min-width: 0;
}

.page-faq .help-contacts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--panel);
}

.page-faq .help-contacts .label {
  color: var(--muted);
}

.page-faq .help-contacts__value {
  font-family: var(--font-mono);
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--white);
  overflow-wrap: anywhere;
}

/* 滚动进入 */
@media (prefers-reduced-motion: no-preference) {
  .page-faq [data-reveal] {
    transition: opacity 400ms var(--ease), transform 400ms var(--ease);
  }

  .page-faq [data-reveal].is-in {
    animation: faq-rise 400ms var(--ease) both;
  }
}

@keyframes faq-rise {
  from {
    opacity: 0.001;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* 平板与桌面 */
@media (min-width: 760px) {
  .page-faq .scene-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-faq .scene-card:nth-child(2) {
    margin-top: 20px;
  }

  .page-faq .scene-card:nth-child(3) {
    margin-top: 40px;
  }

  .page-faq .scene-pick__head {
    max-width: 42em;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 5fr 7fr;
    gap: clamp(32px, 4vw, 60px);
  }

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

  .page-faq .faq-help__grid {
    grid-template-columns: 6fr 5fr;
    gap: clamp(24px, 4vw, 48px);
    align-items: center;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-body__grid {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 64px);
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-faq [data-reveal] {
    animation: none;
    opacity: 1;
    transform: none;
  }

  .page-faq .scene-card:hover,
  .page-faq .scene-chip:hover {
    transform: none;
  }
}