.page-faq {
  --faq-rail-w: 232px;
  --faq-gap: clamp(24px, 3.6vw, 52px);
  color: var(--cream);
  font-family: var(--font-sans);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 4vw, 44px) 0 clamp(44px, 7vw, 84px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero__blade {
  position: absolute;
  top: -22%;
  right: -12%;
  width: min(780px, 86vw);
  height: min(560px, 68vw);
  background:
    linear-gradient(135deg, rgba(30, 144, 255, 0.24), rgba(30, 144, 255, 0) 62%),
    linear-gradient(315deg, rgba(57, 255, 20, 0.13), rgba(30, 144, 255, 0) 72%);
  clip-path: polygon(20% 0, 100% 0, 80% 100%, 0 100%);
  transform: rotate(-8deg);
  pointer-events: none;
  z-index: 0;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(
    90deg,
    var(--orange) 0 20%,
    var(--blue) 20% 52%,
    var(--neon) 52% 72%,
    var(--clay) 72% 100%
  );
  opacity: 0.85;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero h1 {
  margin: 16px 0 0;
  max-width: 18ch;
  font-size: clamp(32px, 6.2vw, 72px);
  font-weight: 300;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--cream);
}

.page-faq .faq-hero .lede {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.2vw, 17px);
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 3.4vw, 36px);
}

.page-faq .faq-hero__meta {
  margin: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--rock);
}

/* ---------- 主体两栏 ---------- */
.page-faq .faq-body {
  padding: clamp(44px, 6.5vw, 88px) 0 clamp(40px, 6vw, 80px);
}

.page-faq .faq-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--faq-gap);
}

.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--rock);
}

.page-faq .faq-index {
  display: flex;
  flex-wrap: nowrap;
  gap: 10px;
  margin: 0;
  padding: 0 0 10px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index li {
  flex: 0 0 auto;
}

.page-faq .faq-index a {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 9px 13px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
  background: var(--glass);
  color: var(--ink-soft);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease), color 0.18s var(--ease);
}

.page-faq .faq-index a:hover {
  border-color: var(--blue);
  background: var(--blue-soft);
  color: var(--cream);
}

.page-faq .faq-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--orange);
  letter-spacing: 0.06em;
}

.page-faq .faq-rail__link {
  display: inline-block;
  margin-top: 14px;
  color: var(--blue);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
}

.page-faq .faq-rail__link:hover {
  color: var(--cream);
}

/* ---------- 答案列 ---------- */
.page-faq .faq-answers {
  display: flex;
  flex-direction: column;
  gap: clamp(36px, 5vw, 64px);
  min-width: 0;
}

.page-faq .faq-item {
  scroll-margin-top: 110px;
  border-top: 1px solid var(--line);
  padding-top: clamp(22px, 3vw, 34px);
  min-width: 0;
}

.page-faq .faq-item__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px 16px;
}

.page-faq .faq-item__num {
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.8vw, 32px);
  font-weight: 300;
  line-height: 1;
  color: var(--blue);
  letter-spacing: -0.02em;
}

.page-faq .faq-item h2 {
  margin: 0;
  flex: 1 1 260px;
  font-size: clamp(21px, 3.2vw, 32px);
  font-weight: 400;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--cream);
}

.page-faq .faq-item__lead {
  margin: clamp(16px, 2.2vw, 22px) 0 0;
  max-width: 68ch;
  font-size: clamp(15px, 1.15vw, 16.5px);
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-faq .faq-item__why {
  margin: 20px 0 0;
  max-width: 68ch;
  padding-left: 14px;
  border-left: 2px solid var(--moss);
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--rock);
}

.page-faq .faq-item__linkline {
  margin: 18px 0 0;
  font-size: 14px;
}

.page-faq .faq-item__linkline a {
  color: var(--blue);
  text-decoration: none;
  font-weight: 500;
}

.page-faq .faq-item__linkline a:hover {
  color: var(--cream);
}

/* ---------- 图片 ---------- */
.page-faq .faq-figure {
  margin: clamp(18px, 2.6vw, 28px) 0 0;
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: var(--panel-deep);
}

.page-faq .faq-figure--narrow img {
  object-position: center;
}

.page-faq .faq-figure__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--rock);
}

/* ---------- 排查步骤 ---------- */
.page-faq .faq-steps {
  margin: clamp(20px, 2.8vw, 28px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-faq .faq-step {
  position: relative;
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 14px;
  padding: 15px 16px;
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--blue);
  border-radius: var(--r-sm);
}

.page-faq .faq-step + .faq-step::before {
  content: "";
  position: absolute;
  top: -12px;
  left: 33px;
  width: 1px;
  height: 12px;
  background: linear-gradient(180deg, rgba(30, 144, 255, 0.65), rgba(30, 144, 255, 0.08));
}

.page-faq .faq-step__num {
  display: block;
  font-family: var(--font-mono);
  font-size: 19px;
  line-height: 1.3;
  color: var(--neon);
  letter-spacing: -0.02em;
}

.page-faq .faq-step__body h3 {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--cream);
}

.page-faq .faq-step__body p {
  margin: 7px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ink-soft);
}

/* ---------- 手风琴 ---------- */
.page-faq .faq-more {
  margin-top: clamp(18px, 2.4vw, 24px);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: rgba(239, 233, 223, 0.03);
  overflow: hidden;
}

.page-faq .faq-more summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--ink-soft);
  transition: color 0.18s var(--ease), background 0.18s var(--ease);
}

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

.page-faq .faq-more summary:hover {
  background: var(--blue-soft);
  color: var(--cream);
}

.page-faq .faq-more[open] summary {
  color: var(--cream);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-more__mark {
  display: inline-block;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1;
  color: var(--rock);
  transition: color 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-faq .faq-more[open] .faq-more__mark {
  color: var(--neon);
  transform: rotate(45deg);
}

.page-faq .faq-more__body {
  padding: 14px 16px 16px;
}

.page-faq .faq-more__body p {
  margin: 0;
  max-width: 66ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 提示块 / 面板 ---------- */
.page-faq .faq-callout {
  margin-top: clamp(16px, 2.2vw, 22px);
  padding: 16px 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: var(--panel);
}

.page-faq .faq-callout--muted {
  background: rgba(239, 233, 223, 0.03);
}

.page-faq .faq-callout__title {
  margin: 0 0 8px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--orange);
}

.page-faq .faq-callout--muted .faq-callout__title {
  color: var(--blue);
}

.page-faq .faq-callout p {
  margin: 0;
  max-width: 68ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-faq .faq-callout p + p {
  margin-top: 8px;
}

.page-faq .faq-grid-2 {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: clamp(18px, 2.6vw, 24px);
}

.page-faq .faq-panel {
  padding: 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: var(--panel);
}

.page-faq .faq-panel--hot {
  border-color: rgba(255, 107, 53, 0.34);
  background: linear-gradient(160deg, rgba(255, 107, 53, 0.10), rgba(17, 24, 35, 0.9) 58%);
}

.page-faq .faq-panel__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--rock);
}

.page-faq .faq-panel p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-faq .faq-panel__note {
  margin-top: 10px !important;
  font-size: 13.5px !important;
  color: var(--rock) !important;
}

.page-faq .faq-plain {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 7px;
}

.page-faq .faq-plain li {
  position: relative;
  padding-left: 16px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--ink-soft);
}

.page-faq .faq-plain li::before {
  content: "";
  position: absolute;
  top: 0.62em;
  left: 0;
  width: 7px;
  height: 1px;
  background: var(--blue);
}

.page-faq .faq-plain--ordered {
  counter-reset: faqplain;
}

.page-faq .faq-plain--ordered li {
  counter-increment: faqplain;
  padding-left: 22px;
}

.page-faq .faq-plain--ordered li::before {
  content: counter(faqplain);
  top: 0;
  width: auto;
  height: auto;
  background: none;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--neon);
}

/* ---------- 清单 ---------- */
.page-faq .faq-checklist {
  margin: clamp(20px, 2.8vw, 26px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-faq .faq-checklist li {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  border-left: 2px solid var(--clay);
  background: rgba(239, 233, 223, 0.035);
  border-radius: var(--r-sm);
}

.page-faq .faq-checklist strong {
  font-size: 15px;
  font-weight: 600;
  color: var(--cream);
}

.page-faq .faq-checklist span {
  font-size: 14px;
  line-height: 1.7;
  color: var(--rock);
}

/* ---------- 联系条 ---------- */
.page-faq .faq-contact {
  margin-top: clamp(20px, 2.8vw, 26px);
  padding: 18px;
  border: 1px solid rgba(30, 144, 255, 0.3);
  border-radius: var(--r-md);
  background: var(--blue-soft);
}

.page-faq .faq-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-contact__row:last-of-type {
  border-bottom: 0;
}

.page-faq .faq-contact__label {
  flex: 0 0 84px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--rock);
}

.page-faq .faq-contact__value {
  flex: 1 1 auto;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--cream);
  word-break: break-word;
}

.page-faq .faq-contact__note {
  margin: 14px 0 0;
  max-width: 68ch;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-faq .faq-contact__note a {
  color: var(--blue);
  text-decoration: none;
}

.page-faq .faq-contact__note a:hover {
  color: var(--cream);
  text-decoration: underline;
}

/* ---------- 收尾 ---------- */
.page-faq .faq-tail {
  padding: clamp(36px, 5.5vw, 72px) 0 clamp(46px, 7vw, 88px);
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(17, 24, 35, 0.9), rgba(10, 14, 20, 0));
}

.page-faq .faq-tail__title {
  margin: 0 0 clamp(18px, 2.6vw, 26px);
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 300;
  letter-spacing: -0.01em;
  color: var(--cream);
}

.page-faq .faq-tail__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-faq .faq-next {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(18px, 2.6vw, 26px);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-md);
  background: var(--panel);
  color: var(--cream);
  text-decoration: none;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease), transform 0.18s var(--ease);
}

.page-faq .faq-next:hover {
  border-color: var(--blue);
  background: var(--glass-strong);
  transform: translateY(-2px);
}

.page-faq .faq-next__label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-faq .faq-next__title {
  font-size: clamp(16px, 1.8vw, 19px);
  font-weight: 500;
  line-height: 1.45;
}

.page-faq .faq-next__text {
  font-size: 14px;
  line-height: 1.75;
  color: var(--rock);
}

/* ---------- 焦点反馈 ---------- */
.page-faq a:focus-visible,
.page-faq button:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

/* ---------- 中屏 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-grid-2 {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  }

  .page-faq .faq-tail__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  }

  .page-faq .faq-step {
    grid-template-columns: 46px minmax(0, 1fr);
    padding: 17px 20px;
  }

  .page-faq .faq-step + .faq-step::before {
    left: 39px;
  }
}

/* ---------- 宽屏两栏 ---------- */
@media (min-width: 960px) {
  .page-faq .faq-body__grid {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 112px;
  }

  .page-faq .faq-index {
    flex-direction: column;
    flex-wrap: nowrap;
    overflow: visible;
    padding: 0;
  }

  .page-faq .faq-index li {
    flex: 1 1 auto;
  }

  .page-faq .faq-index a {
    white-space: normal;
  }

  .page-faq .faq-figure--narrow {
    max-width: 720px;
  }
}