.page-faq {
  --faq-cut: 18px;
  --faq-gap: clamp(18px, 2.6vw, 30px);
  --faq-body: #3d4954;
  --faq-body-soft: #55616d;
  background: var(--paper);
  color: var(--ink-text);
  padding-bottom: clamp(40px, 6vw, 84px);
  overflow-x: clip;
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  min-width: 0;
}

.page-faq img {
  max-width: 100%;
  height: auto;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--faq-body-soft);
}

.page-faq .breadcrumb a {
  color: inherit;
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease-out);
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--turf-deep);
}

.page-faq .breadcrumb__sep {
  color: var(--turf);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: var(--faq-gap);
  padding: clamp(20px, 3.4vw, 38px) 0 clamp(32px, 5vw, 58px);
}

.page-faq .faq-hero__text {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 5.4vw, 56px);
  line-height: 1.08;
  letter-spacing: -.012em;
  color: var(--ink-text);
  text-wrap: balance;
}

.page-faq .faq-hero__lead {
  margin: 0;
  max-width: 62ch;
  font-size: 17px;
  line-height: 1.8;
  color: var(--faq-body);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
  margin: 4px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--paper-line);
  list-style: none;
}

.page-faq .faq-hero__meta li {
  display: flex;
  align-items: baseline;
  gap: 9px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--faq-body-soft);
}

.page-faq .faq-hero__num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--turf-deep);
}

.page-faq .faq-hero__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: var(--deep);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%);
}

.page-faq .faq-hero__media::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 4px;
  background: linear-gradient(90deg, var(--turf) 0%, var(--turf-deep) 55%, transparent 100%);
}

.page-faq .faq-hero__media img {
  display: block;
  width: 100%;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body__grid {
  display: grid;
  gap: var(--faq-gap);
}

/* 分类索签 */
.page-faq .faq-index {
  background: var(--night);
  color: var(--paper);
  padding: 18px 16px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 4px;
  margin: 0;
  padding: 0 0 2px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-index__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 12px;
  white-space: nowrap;
  color: var(--paper);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .03em;
  border-bottom: 2px solid transparent;
  transition: color var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}

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

.page-faq .faq-index__no {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
  opacity: .85;
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-answers {
  display: grid;
  gap: clamp(30px, 4.6vw, 54px);
}

.page-faq .faq-group {
  scroll-margin-top: 90px;
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 2px 14px;
  align-items: baseline;
  padding-bottom: 14px;
  border-bottom: 2px solid var(--turf);
}

.page-faq .faq-group__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--turf-deep);
}

.page-faq .faq-group h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.2vw, 31px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.008em;
  color: var(--ink-text);
}

.page-faq .faq-group__desc {
  grid-column: 1 / -1;
  margin: 4px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--faq-body-soft);
}

.page-faq .faq-group__items {
  margin-top: 6px;
}

/* ---------- 单条问答 ---------- */
.page-faq .faq-item {
  border-bottom: 1px solid var(--paper-line);
}

.page-faq .faq-item__q {
  position: relative;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 17px 36px 17px 4px;
  list-style: none;
  cursor: pointer;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.65;
  color: var(--ink-text);
  transition: color var(--dur-fast) var(--ease-out), background-color var(--dur-fast) var(--ease-out);
}

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

.page-faq .faq-item__q::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 16px;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--turf-deep);
  transition: transform var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}

.page-faq .faq-item[open] > .faq-item__q::after {
  content: "\2013";
}

.page-faq .faq-item__q:hover {
  color: var(--turf-deep);
  background: rgba(47, 158, 94, .06);
}

.page-faq .faq-item__q:focus-visible {
  outline: 2px solid var(--turf);
  outline-offset: 2px;
}

.page-faq .faq-item__no {
  flex: none;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--turf-deep);
}

.page-faq .faq-item__a {
  padding: 0 8px 22px 30px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--faq-body);
  animation: faq-open 180ms var(--ease-out) both;
}

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

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

.page-faq .faq-item__a a {
  color: var(--turf-deep);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-faq .faq-item__a a:hover {
  color: var(--night);
}

@keyframes faq-open {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}

/* 编号步骤 */
.page-faq .faq-steps {
  counter-reset: faqstep;
  display: grid;
  gap: 8px;
  margin: 12px 0 10px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-steps li {
  position: relative;
  padding-left: 32px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--faq-body);
}

.page-faq .faq-steps li::before {
  counter-increment: faqstep;
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--turf-deep);
}

/* 红黄牌语义小标 */
.page-faq .faq-mark {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 1px 8px;
  margin: 0 2px;
  border-radius: 2px;
  font-size: 12.5px;
  font-weight: 600;
  line-height: 1.7;
  white-space: nowrap;
  vertical-align: baseline;
}

.page-faq .faq-mark::before {
  content: "";
  flex: none;
  width: 9px;
  height: 12px;
  border-radius: 1.5px;
  background: currentColor;
  opacity: .85;
}

.page-faq .faq-mark--ok {
  background: rgba(47, 158, 94, .15);
  color: var(--turf-deep);
}

.page-faq .faq-mark--warn {
  background: rgba(242, 194, 48, .26);
  color: #6f5200;
}

.page-faq .faq-mark--alert {
  background: rgba(226, 69, 60, .16);
  color: #9d241d;
}

.page-faq .faq-mark--mute {
  background: rgba(143, 160, 174, .22);
  color: #4a5763;
}

/* 分组内插图 */
.page-faq .faq-figure {
  display: grid;
  gap: 10px;
  margin: 20px 0 22px;
  max-width: 480px;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  background: var(--deep);
  clip-path: polygon(0 14px, 14px 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
}

.page-faq .faq-figure__caption {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--faq-body-soft);
  padding-left: 10px;
  border-left: 2px solid var(--turf);
}

/* ---------- 转人工引导带 ---------- */
.page-faq .faq-assist {
  position: relative;
  overflow: hidden;
  margin-top: clamp(44px, 6vw, 80px);
  padding: clamp(28px, 4.6vw, 54px) clamp(22px, 4vw, 52px);
  background: var(--night);
  color: var(--paper);
  clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 28px 100%, 0 calc(100% - 28px));
  scroll-margin-top: 90px;
}

.page-faq .faq-assist::before {
  content: "";
  position: absolute;
  inset: -30% -12%;
  background: repeating-linear-gradient(115deg, rgba(47, 158, 94, .17) 0 1px, transparent 1px 17px);
  pointer-events: none;
}

.page-faq .faq-assist > * {
  position: relative;
  z-index: 1;
}

.page-faq .faq-assist .mono-tag {
  color: var(--cyan);
}

.page-faq .faq-assist h2 {
  margin: 12px 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.8vw, 38px);
  line-height: 1.14;
  letter-spacing: -.01em;
  color: #fff;
  text-wrap: balance;
}

.page-faq .faq-assist__lead {
  margin: 0 0 26px;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.8;
  color: #cbd7e0;
}

.page-faq .faq-channels {
  display: grid;
  gap: 14px;
}

.page-faq .faq-channel {
  display: grid;
  gap: 7px;
  align-content: start;
  padding: 18px 18px 20px;
  background: rgba(255, 255, 255, .05);
  border: 1px solid var(--hairline);
  border-top: 2px solid var(--turf);
  transition: border-color var(--dur-fast) var(--ease-out), background-color var(--dur-fast) var(--ease-out);
}

.page-faq .faq-channel:hover {
  background: rgba(255, 255, 255, .08);
  border-color: var(--hairline-strong);
  border-top-color: var(--cyan);
}

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

.page-faq .faq-channel__value {
  margin: 0;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  color: #fff;
  overflow-wrap: anywhere;
}

.page-faq .faq-channel__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: #b6c4cf;
}

.page-faq .faq-prep {
  margin-top: 24px;
  border: 1px solid var(--hairline);
  background: rgba(255, 255, 255, .035);
}

.page-faq .faq-prep > summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 18px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .05em;
  color: var(--card-yellow);
  transition: background-color var(--dur-fast) var(--ease-out);
}

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

.page-faq .faq-prep > summary:hover {
  background: rgba(255, 255, 255, .05);
}

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

.page-faq .faq-prep > summary::after {
  content: "+";
  margin-left: auto;
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-prep[open] > summary::after {
  content: "\2013";
}

.page-faq .faq-prep__list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 4px 20px 22px 40px;
  font-size: 15px;
  line-height: 1.75;
  color: #cbd7e0;
}

.page-faq .faq-prep__list li::marker {
  color: var(--turf);
}

.page-faq .faq-assist__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px dashed var(--hairline-strong);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .03em;
}

.page-faq .faq-assist__links a {
  color: var(--cyan);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(127, 227, 196, .42);
  transition: color var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}

.page-faq .faq-assist__links a:hover,
.page-faq .faq-assist__links a:focus-visible {
  color: #fff;
  border-color: #fff;
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    align-items: center;
    gap: clamp(28px, 4vw, 56px);
  }

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

@media (min-width: 1000px) {
  .page-faq .faq-body__grid {
    grid-template-columns: 264px minmax(0, 1fr);
    gap: clamp(30px, 4vw, 60px);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: 16px;
    padding: 22px 18px 24px;
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
  }

  .page-faq .faq-index__link {
    display: flex;
    width: 100%;
    padding: 11px 12px 11px 15px;
    border-bottom: none;
    border-left: 2px solid transparent;
    white-space: normal;
  }

  .page-faq .faq-index__link:hover,
  .page-faq .faq-index__link:focus-visible {
    border-left-color: var(--turf);
    border-bottom-color: transparent;
    background: rgba(47, 158, 94, .12);
  }

  .page-faq .faq-item__q {
    font-size: 17.5px;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-group__head {
    grid-template-columns: auto minmax(0, 1fr);
  }
}

/* ---------- 降低动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item__a {
    animation: none;
  }

  .page-faq .faq-item__q,
  .page-faq .faq-item__q::after,
  .page-faq .faq-index__link,
  .page-faq .faq-channel,
  .page-faq .faq-assist__links a {
    transition: none;
  }
}