.page-faq {
  background: var(--ink-900);
  color: var(--cool);
  font-family: var(--font-body);
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(84px, 11vw, 128px) 0 var(--sp-6);
  background:
    radial-gradient(120% 100% at 84% -20%, rgba(0, 229, 192, 0.16), transparent 60%),
    linear-gradient(180deg, var(--ink-800) 0%, var(--ink-900) 100%);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(27, 74, 62, 0.7) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(27, 74, 62, 0.7) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.45;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 88%);
}

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

.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: var(--sp-4);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mute);
}

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

.page-faq .breadcrumb a:hover {
  color: var(--cyan);
}

.page-faq .faq-hero h1 {
  max-width: 16ch;
  margin: 0 0 var(--sp-3);
  font-family: var(--font-display);
  font-size: clamp(32px, 7vw, 62px);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-hero__lead {
  max-width: 62ch;
  margin: 0 0 var(--sp-3);
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.8;
  color: var(--cool);
}

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

/* 主体骨架 */
.page-faq .faq-body {
  padding: var(--sp-6) 0 var(--sp-7);
  overflow-x: clip;
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-5);
}

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

/* 左侧主题索引 */
.page-faq .faq-toc {
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.page-faq .faq-toc__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--mute);
}

.page-faq .faq-toc ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0;
}

.page-faq .faq-toc a {
  display: block;
  padding: 5px 10px;
  border: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.5;
  color: var(--cool);
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-toc a:hover {
  color: var(--cyan);
  border-color: rgba(0, 229, 192, 0.55);
}

.page-faq .faq-toc a[aria-current="true"] {
  color: var(--cyan);
  border-color: var(--cyan);
}

/* 问题分组 */
.page-faq .faq-group {
  margin-bottom: var(--sp-6);
  scroll-margin-top: calc(var(--header-h) + 28px);
}

.page-faq .faq-group:last-of-type {
  margin-bottom: 0;
}

.page-faq .faq-group__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-group__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--amber);
}

.page-faq .faq-group__head h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-faq .faq-group__lead {
  max-width: 60ch;
  margin: 14px 0 var(--sp-2);
  font-size: 15px;
  line-height: 1.75;
  color: var(--mute);
}

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

.page-faq .faq-item__q {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 0 15px 14px;
  border-left: 2px solid transparent;
  list-style: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--paper);
  transition: color 0.18s ease, border-color 0.18s ease;
}

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

.page-faq .faq-item__q:hover {
  color: var(--cyan-soft);
  border-left-color: rgba(0, 229, 192, 0.45);
}

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

.page-faq .faq-item[open] > .faq-item__q {
  color: var(--cyan);
  border-left-color: var(--cyan);
}

.page-faq .faq-item__icon {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: currentColor;
}

.page-faq .faq-item__icon::before {
  content: "+";
}

.page-faq .faq-item[open] .faq-item__icon::before {
  content: "–";
}

.page-faq .faq-item__body {
  padding: 0 4px 20px 16px;
  background: linear-gradient(180deg, rgba(0, 229, 192, 0.05), transparent 70%);
}

.page-faq .faq-item__body p {
  max-width: 64ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--cool);
}

/* 斜切提示横幅 */
.page-faq .faq-banner {
  position: relative;
  z-index: 0;
  margin: var(--sp-5) 0;
  padding: 20px 24px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--cyan-soft);
}

.page-faq .faq-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  transform: skewX(var(--skew));
  background: linear-gradient(100deg, var(--ink-700), var(--ink-800));
  box-shadow: inset 3px 0 0 0 var(--amber);
}

.page-faq .faq-banner p {
  margin: 0;
}

.page-faq .faq-banner--media {
  margin: var(--sp-5) 0;
  padding: 0;
}

.page-faq .faq-banner--media::before {
  display: none;
}

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

.page-faq .faq-banner--media figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mute);
}

/* 三步自查 */
.page-faq .faq-check__steps {
  list-style: none;
  counter-reset: fstep;
  margin: var(--sp-3) 0 0;
  padding: 0;
}

.page-faq .faq-check__step {
  position: relative;
  counter-increment: fstep;
  padding: 0 0 26px 56px;
}

.page-faq .faq-check__step::before {
  content: counter(fstep);
  position: absolute;
  left: 0;
  top: 0;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border: 1px solid var(--cyan);
  border-radius: 50%;
  background: var(--ink-900);
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--cyan);
}

.page-faq .faq-check__step::after {
  content: "";
  position: absolute;
  left: 18px;
  top: 38px;
  bottom: 4px;
  width: 1px;
  background: linear-gradient(180deg, var(--line), transparent);
}

.page-faq .faq-check__step:last-child::after {
  display: none;
}

.page-faq .faq-check__step h3 {
  margin: 8px 0 6px;
  font-size: 17px;
  font-weight: 600;
  color: var(--paper);
}

.page-faq .faq-check__step p {
  max-width: 58ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--cool);
}

.page-faq .faq-check__media {
  margin: var(--sp-4) 0 0;
}

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

/* 反馈通道 */
.page-faq .faq-resolve {
  padding: var(--sp-4);
  border-left: 3px solid var(--cyan);
  background: linear-gradient(150deg, var(--ink-700), var(--ink-800));
}

.page-faq .faq-resolve .faq-group__lead {
  color: var(--cool);
}

.page-faq .faq-contact {
  list-style: none;
  margin: var(--sp-3) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-contact__row {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(27, 74, 62, 0.65);
}

.page-faq .faq-contact__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mute);
}

.page-faq .faq-contact__val {
  font-size: 15px;
  color: var(--paper);
  word-break: break-word;
}

.page-faq .faq-resolve__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-top: var(--sp-4);
}

.page-faq .faq-resolve__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  font-size: 14px;
}

.page-faq .faq-resolve__links a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 192, 0.35);
  padding-bottom: 2px;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-faq .faq-resolve__links a:hover {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

/* 桌面端：固定目录 + 窄栏正文 */
@media (min-width: 960px) {
  .page-faq .faq-layout {
    grid-template-columns: 186px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-faq .faq-toc {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-faq .faq-toc ol {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
    margin-top: 16px;
  }

  .page-faq .faq-toc a {
    border: 0;
    border-left: 1px solid transparent;
    padding: 5px 0 5px 14px;
    font-size: 13px;
  }

  .page-faq .faq-toc a[aria-current="true"] {
    border-left-color: var(--cyan);
  }

  .page-faq .faq-resolve {
    padding: var(--sp-5);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-toc a,
  .page-faq .faq-item__q,
  .page-faq .faq-resolve__links a {
    transition: none;
  }
}
<<<END>>>