.page-faq {
  background: var(--ink-900);
  color: var(--paper);
  padding-bottom: clamp(48px, 7vw, 110px);
}

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

.page-faq .breadcrumb {
  padding-top: clamp(18px, 2.6vw, 32px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  background:
    radial-gradient(70% 60% at 10% -12%, rgba(53, 240, 208, 0.10), transparent 66%),
    radial-gradient(52% 50% at 98% 6%, rgba(124, 92, 255, 0.13), transparent 70%);
  padding-block: clamp(22px, 3vw, 40px) clamp(36px, 5vw, 66px);
}

.page-faq .faq-hero__inner {
  display: grid;
  gap: clamp(26px, 4vw, 46px);
  align-items: start;
}

.page-faq .faq-hero__copy .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--aqua);
}

.page-faq .faq-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(29px, 4.6vw, 52px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-hero__lede {
  margin: 18px 0 0;
  max-width: 56ch;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: var(--tide);
}

.page-faq .faq-release {
  position: relative;
  margin-top: clamp(24px, 3vw, 36px);
  padding: clamp(20px, 2.6vw, 30px);
  border-radius: var(--radius-m);
  background: var(--mist);
  color: var(--ink-900);
  box-shadow: 0 26px 60px -34px rgba(0, 0, 0, 0.8);
}

.page-faq .faq-release::after {
  content: "2026";
  position: absolute;
  top: -12px;
  right: 20px;
  padding: 4px 12px;
  border-radius: 999px;
  background: var(--sun);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
}

.page-faq .faq-release__kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: rgba(7, 26, 43, 0.66);
}

.page-faq .faq-release__title {
  margin: 8px 0 0;
  font-family: var(--font-serif);
  font-size: clamp(19px, 2.2vw, 24px);
  font-weight: 600;
  line-height: 1.45;
  color: var(--ink-900);
}

.page-faq .faq-release__list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-faq .faq-release__list li {
  position: relative;
  padding-left: 20px;
  font-size: 16px;
  line-height: 1.72;
  color: rgba(7, 26, 43, 0.86);
}

.page-faq .faq-release__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.64em;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--ink-800);
  transform: rotate(45deg);
  opacity: 0.6;
}

.page-faq .faq-release__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  margin-top: 20px;
}

.page-faq .faq-hero__figure {
  margin: 0;
  border-radius: var(--radius-l);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-faq .faq-hero__figure .figure__media {
  aspect-ratio: 3 / 4;
  overflow: hidden;
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-faq .faq-hero__figure .figure__caption {
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  line-height: 1.7;
  color: var(--tide);
}

/* ---------- 侧边锚点 + 内容骨架 ---------- */
.page-faq .faq-shell {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  padding-top: clamp(18px, 2.6vw, 30px);
}

.page-faq .faq-rail {
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.page-faq .faq-rail__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--tide);
}

.page-faq .faq-rail__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

.page-faq .faq-rail__link {
  position: relative;
  display: block;
  padding: 11px 12px 11px 24px;
  min-height: 44px;
  border-radius: var(--radius-s);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
  text-decoration: none;
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-faq .faq-rail__link::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 50%;
  width: 6px;
  height: 6px;
  margin-top: -3px;
  border-radius: 50%;
  background: var(--aqua);
  opacity: 0.55;
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  background: rgba(220, 232, 238, 0.09);
  color: var(--aqua);
}

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

/* ---------- 章节 ---------- */
.page-faq .faq-section {
  padding-block: clamp(28px, 4.2vw, 52px);
  border-top: 1px solid var(--line);
  scroll-margin-top: 90px;
}

.page-faq .faq-section:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .faq-section__head {
  max-width: 62ch;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-faq .faq-section__head .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--aqua);
}

.page-faq .faq-section__head .section-title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(23px, 3.2vw, 36px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-section__lede {
  margin: 14px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--tide);
}

.page-faq .faq-section__lede a,
.page-faq .faq-prep__note a {
  color: var(--aqua);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 208, 0.45);
}

.page-faq .faq-section__lede a:hover,
.page-faq .faq-prep__note a:hover {
  color: var(--paper);
}

.page-faq .faq-section__figure {
  margin: 0 0 clamp(24px, 3vw, 36px);
  border-radius: var(--radius-l);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-800);
}

.page-faq .faq-section__figure .figure__media {
  aspect-ratio: 3 / 2;
  overflow: hidden;
}

.page-faq .faq-section__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-faq .faq-section__figure .figure__caption {
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  line-height: 1.7;
  color: var(--tide);
}

/* ---------- 六主题卡片瀑布 ---------- */
.page-faq .faq-fall {
  columns: 1;
  column-gap: 18px;
}

.page-faq .faq-card {
  break-inside: avoid;
  margin: 0 0 18px;
  padding: clamp(18px, 2.2vw, 24px);
  border-radius: var(--radius-m);
  background: var(--mist);
  border: 1px solid rgba(7, 26, 43, 0.10);
  color: var(--ink-900);
}

.page-faq .faq-card__index {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: rgba(7, 26, 43, 0.5);
}

.page-faq .faq-card__title {
  margin: 6px 0 8px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink-900);
}

.page-faq .faq-card__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(7, 26, 43, 0.8);
}

.page-faq .faq-card__link {
  display: inline-block;
  margin-top: 14px;
  padding-bottom: 2px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink-800);
  text-decoration: none;
  border-bottom: 1px solid rgba(14, 42, 63, 0.38);
}

.page-faq .faq-card__link:hover,
.page-faq .faq-card__link:focus-visible {
  color: var(--coral);
  border-bottom-color: var(--coral);
}

/* ---------- 常见问题 ---------- */
.page-faq .faq-tags {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-tags a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 14px;
  text-decoration: none;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-faq .faq-tags a:hover,
.page-faq .faq-tags a:focus-visible {
  border-color: var(--coral);
  color: var(--coral);
  background: rgba(255, 107, 74, 0.08);
}

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

.page-faq .faq-group__title {
  margin: 26px 0 12px;
  font-family: var(--font-serif);
  font-size: clamp(18px, 2vw, 21px);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--sun);
}

.page-faq .faq-group:first-child .faq-group__title {
  margin-top: 0;
}

.page-faq .faq-item {
  margin-bottom: 4px;
  border-left: 2px solid var(--line-strong);
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  background: rgba(220, 232, 238, 0.04);
}

.page-faq .faq-item[open] {
  border-left-color: var(--coral);
  background: rgba(220, 232, 238, 0.075);
}

.page-faq .faq-item summary {
  position: relative;
  padding: 16px 46px 16px 18px;
  min-height: 44px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
}

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

.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--aqua);
}

.page-faq .faq-item[open] summary::after {
  content: "–";
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--aqua);
  outline-offset: -2px;
}

.page-faq .faq-item__body {
  padding: 0 18px 18px;
  max-width: 62ch;
}

.page-faq .faq-item__body p {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--tide);
}

/* ---------- 按设备排查 ---------- */
.page-faq .faq-devices {
  display: grid;
  gap: 16px;
}

.page-faq .faq-device {
  padding: clamp(18px, 2.2vw, 24px);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: linear-gradient(180deg, rgba(19, 47, 70, 0.92), rgba(7, 26, 43, 0.72));
}

.page-faq .faq-device__icon {
  width: 34px;
  height: 34px;
  color: var(--aqua);
}

.page-faq .faq-device__title {
  margin: 14px 0 12px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--paper);
}

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

.page-faq .faq-device__steps li {
  position: relative;
  padding-left: 28px;
  counter-increment: faqstep;
  font-size: 16px;
  line-height: 1.72;
  color: var(--tide);
}

.page-faq .faq-device__steps li::before {
  content: counter(faqstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.28em;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--coral);
}

/* ---------- 联系前准备 ---------- */
.page-faq .faq-prep {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  padding: clamp(22px, 3vw, 34px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-l);
  background:
    radial-gradient(82% 100% at 100% 0%, rgba(53, 240, 208, 0.10), transparent 62%),
    var(--ink-800);
}

.page-faq .faq-prep__body .faq-section__lede {
  margin-top: 0;
}

.page-faq .faq-prep__list {
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-faq .faq-prep__list li {
  position: relative;
  padding-left: 30px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--tide);
}

.page-faq .faq-prep__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 14px;
  height: 14px;
  border: 1px solid var(--aqua);
  border-radius: 3px;
}

.page-faq .faq-prep__note {
  margin: 20px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--tide);
}

.page-faq .faq-prep__mail {
  align-self: start;
  padding: 20px;
  border-radius: var(--radius-m);
  background: var(--paper);
  color: var(--ink-900);
}

.page-faq .faq-prep__mail-label {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: rgba(7, 26, 43, 0.6);
}

.page-faq .faq-prep__mail-value {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 15px;
  word-break: break-all;
  color: var(--ink-900);
}

.page-faq .faq-prep__mail .btn {
  margin-right: 8px;
  margin-bottom: 8px;
}

.page-faq .faq-prep__status {
  margin: 6px 0 12px;
  min-height: 1.3em;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--kelp);
}

/* ---------- 显现动效 ---------- */
@media (prefers-reduced-motion: no-preference) {
  .page-faq [data-reveal] {
    transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
  }

  .js .page-faq [data-reveal]:not(.is-visible) {
    opacity: 0;
    transform: translateY(16px);
  }
}

/* ---------- 媒体查询 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-fall {
    columns: 2;
  }
}

@media (min-width: 780px) {
  .page-faq .faq-devices {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-faq .faq-prep {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, 0.72fr);
  }

  .page-faq .faq-hero__lede {
    font-size: 17px;
  }

  .page-faq .faq-section__lede {
    font-size: 17px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-shell {
    grid-template-columns: minmax(0, 1fr) 220px;
    align-items: start;
  }

  .page-faq .faq-shell__body {
    grid-column: 1;
    grid-row: 1;
    min-width: 0;
  }

  .page-faq .faq-rail {
    grid-column: 2;
    grid-row: 1;
    position: sticky;
    top: 24px;
    border-top: 0;
    border-left: 1px solid var(--line);
    padding-top: 0;
    padding-left: 14px;
  }
}

@media (min-width: 1280px) {
  .page-faq .faq-fall {
    columns: 3;
  }
}
<<<END>>>