.page-faq {
  background: var(--ink);
  color: var(--mist);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--band-h) + 40px) 0 72px;
  background:
    radial-gradient(140% 110% at 84% 0%, rgba(127, 182, 217, 0.2), rgba(10, 17, 24, 0) 58%),
    linear-gradient(180deg, var(--ink) 0%, var(--deep) 100%);
  border-bottom: 2px solid var(--line-strong);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: -12%;
  right: -12%;
  bottom: -80px;
  height: 200px;
  background: radial-gradient(58% 100% at 50% 100%, rgba(127, 182, 217, 0.16), transparent 70%);
  pointer-events: none;
}

.page-faq .faq-hero .breadcrumb {
  position: relative;
  z-index: 2;
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 38px;
  margin-top: 26px;
}

.page-faq .faq-hero h1 {
  margin: 12px 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.05rem, 8vw, 4.2rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.page-faq .faq-hero__lede {
  max-width: 58ch;
  margin: 0 0 26px;
  color: var(--mist-70);
  font-size: 1.0625rem;
  line-height: 1.8;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

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

.page-faq .faq-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 16px 18px;
  background: rgba(10, 17, 24, 0.62);
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow-hard);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.page-faq .faq-step:hover {
  border-color: var(--orange);
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hard-lg);
}

.page-faq .faq-step__num {
  display: block;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-faq .faq-step__title {
  margin: 0 0 5px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: 0.01em;
  color: var(--mist);
}

.page-faq .faq-step p {
  margin: 0;
  color: var(--mist-70);
  font-size: 0.9375rem;
  line-height: 1.72;
}

.page-faq .faq-hero__track {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 46px;
  opacity: 0.5;
  pointer-events: none;
}

@media (min-width: 1024px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: end;
  }

  .page-faq .faq-hero__steps {
    margin-top: 22px;
  }
}

/* ---------- 主体分栏 ---------- */
.page-faq .guide-layout {
  padding: 64px 0 96px;
}

.page-faq .guide-layout__inner {
  display: grid;
  gap: 40px;
}

@media (min-width: 1024px) {
  .page-faq .guide-layout__inner {
    grid-template-columns: minmax(0, 3fr) minmax(0, 8fr);
    gap: 56px;
    align-items: start;
  }
}

/* 主题目录 */
.page-faq .guide-toc {
  padding: 20px 18px;
  background: var(--deep);
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow-hard);
}

@media (min-width: 1024px) {
  .page-faq .guide-toc {
    position: sticky;
    top: calc(var(--band-h) + 24px);
  }
}

.page-faq .guide-toc__title {
  margin: 0 0 12px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--stone);
}

.page-faq .guide-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .guide-toc__link {
  display: grid;
  grid-template-columns: 12px 2.2em minmax(0, 1fr);
  align-items: center;
  gap: 9px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
  color: var(--mist-70);
  text-decoration: none;
  font-size: 0.9375rem;
  transition: color 0.2s ease;
}

.page-faq .guide-toc__list li:last-child .guide-toc__link {
  border-bottom: 0;
}

.page-faq .guide-toc__link:hover,
.page-faq .guide-toc__link:focus-visible {
  color: var(--mist);
  outline: none;
}

.page-faq .guide-toc__dot {
  width: 10px;
  height: 10px;
  border: 2px solid var(--stone);
  transform: rotate(45deg);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.page-faq .guide-toc__link:hover .guide-toc__dot,
.page-faq .guide-toc__link:focus-visible .guide-toc__dot {
  background: var(--orange);
  border-color: var(--orange);
}

.page-faq .guide-toc__num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--stone);
  transition: color 0.2s ease;
}

.page-faq .guide-toc__link:hover .guide-toc__num,
.page-faq .guide-toc__link:focus-visible .guide-toc__num {
  color: var(--orange);
}

/* ---------- 折叠问答 ---------- */
.page-faq .guide-groups {
  display: grid;
  gap: 52px;
}

.page-faq .guide-group {
  scroll-margin-top: calc(var(--band-h) + 28px);
}

.page-faq .guide-group__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--line-strong);
}

.page-faq .guide-group__num {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-faq .guide-group__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-faq .qa {
  position: relative;
  border: 2px solid var(--line);
  border-left-width: 4px;
  background: rgba(16, 46, 69, 0.45);
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

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

.page-faq .qa:hover {
  border-color: var(--line-strong);
}

.page-faq .qa[open] {
  border-color: var(--line-strong);
  border-left-color: var(--orange);
  background: rgba(16, 46, 69, 0.82);
  box-shadow: var(--shadow-hard);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.55;
  color: var(--mist);
  transition: color 0.2s ease;
}

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

.page-faq .qa__q:hover {
  color: var(--orange);
}

.page-faq .qa__mark {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
  margin-top: 6px;
  border: 2px solid var(--orange);
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: var(--orange);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.page-faq .qa__mark::before {
  left: 50%;
  top: 2px;
  bottom: 2px;
  width: 2px;
  transform: translateX(-50%);
}

.page-faq .qa__mark::after {
  top: 50%;
  left: 2px;
  right: 2px;
  height: 2px;
  transform: translateY(-50%);
}

.page-faq .qa[open] .qa__mark::before {
  transform: translateX(-50%) scaleY(0);
  opacity: 0;
}

.page-faq .qa__a {
  margin: 0 18px 18px 44px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  color: var(--mist-70);
  font-size: 0.9375rem;
  line-height: 1.8;
}

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

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

@media (max-width: 560px) {
  .page-faq .qa__a {
    margin: 0 16px 16px 16px;
  }

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

/* ---------- 旧版反馈纸张面板 ---------- */
.page-faq .feedback {
  position: relative;
  margin-top: 64px;
  background: var(--cream);
  color: #16202A;
  border: 2px solid #16202A;
  box-shadow: var(--shadow-hard-lg);
  overflow: hidden;
  scroll-margin-top: calc(var(--band-h) + 28px);
}

.page-faq .feedback__grid {
  display: grid;
}

.page-faq .feedback__body {
  padding: 32px 22px;
}

.page-faq .feedback__eyebrow {
  display: inline-block;
  margin: 0 0 14px;
  padding: 3px 10px;
  background: var(--clay);
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
}

.page-faq .feedback__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.45rem, 4vw, 2rem);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: #16202A;
}

.page-faq .feedback__lead {
  max-width: 62ch;
  margin: 0 0 28px;
  color: #3B4C58;
  font-size: 0.9375rem;
  line-height: 1.8;
}

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

.page-faq .fstep {
  position: relative;
  padding: 18px 16px 16px;
  background: rgba(255, 255, 255, 0.45);
  border: 2px solid #C9BCA6;
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.page-faq .fstep:hover {
  border-color: var(--orange);
  transform: translateY(-3px);
  box-shadow: 4px 6px 0 rgba(22, 32, 42, 0.22);
}

.page-faq .fstep__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  margin-bottom: 10px;
  background: #16202A;
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  transition: background 0.2s ease;
}

.page-faq .fstep:hover .fstep__num {
  background: var(--orange);
}

.page-faq .fstep__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1rem;
  color: #16202A;
}

.page-faq .fstep p {
  margin: 0;
  color: var(--stone);
  font-size: 0.875rem;
  line-height: 1.74;
}

.page-faq .feedback__media {
  position: relative;
  min-height: 220px;
  border-top: 2px solid #16202A;
  background: #E7DFD0;
}

.page-faq .feedback__media img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 220px;
  object-fit: cover;
  filter: sepia(0.14) contrast(1.03);
}

.page-faq .feedback__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0;
  padding: 10px 14px;
  background: rgba(22, 32, 42, 0.86);
  border-top: 2px solid var(--orange);
  color: var(--cream);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  line-height: 1.55;
}

@media (min-width: 768px) {
  .page-faq .feedback__body {
    padding: 40px 36px;
  }

  .page-faq .feedback__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .page-faq .fstep::after {
    content: "";
    position: absolute;
    top: 30px;
    right: -22px;
    width: 22px;
    border-top: 2px dashed #C9BCA6;
  }

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

@media (min-width: 900px) {
  .page-faq .feedback__grid {
    grid-template-columns: minmax(0, 1fr) 300px;
  }

  .page-faq .feedback__media {
    border-top: 0;
    border-left: 2px solid #16202A;
  }
}

/* ---------- 桌面端排查 ---------- */
.page-faq .trouble {
  margin-top: 64px;
  background: var(--deep);
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow-hard-lg);
  scroll-margin-top: calc(var(--band-h) + 28px);
}

.page-faq .trouble__grid {
  display: grid;
}

.page-faq .trouble__body {
  padding: 32px 22px;
}

.page-faq .trouble__eyebrow {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--yellow);
}

.page-faq .trouble__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.4rem, 3.6vw, 1.9rem);
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.page-faq .trouble__lede {
  max-width: 60ch;
  margin: 0 0 24px;
  color: var(--mist-70);
  font-size: 0.9375rem;
}

.page-faq .trouble__rows {
  border-top: 2px solid var(--line-strong);
}

.page-faq .trow {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px dashed var(--line);
}

.page-faq .trow:last-child {
  border-bottom: 0;
}

.page-faq .trow__sym {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--yellow);
  transition: color 0.2s ease;
}

.page-faq .trow__act {
  margin: 0;
  color: var(--mist-70);
  font-size: 0.9375rem;
  line-height: 1.78;
  transition: color 0.2s ease;
}

.page-faq .trow:hover .trow__sym {
  color: var(--orange);
}

.page-faq .trow:hover .trow__act {
  color: var(--mist);
}

.page-faq .trouble__media {
  border-top: 2px solid var(--line-strong);
  background: #0D2233;
}

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

@media (min-width: 720px) {
  .page-faq .trow {
    grid-template-columns: minmax(0, 20ch) minmax(0, 1fr);
    gap: 24px;
    align-items: start;
  }
}

@media (min-width: 768px) {
  .page-faq .trouble__body {
    padding: 40px 36px;
  }
}

@media (min-width: 960px) {
  .page-faq .trouble__grid {
    grid-template-columns: minmax(0, 1fr) 330px;
  }

  .page-faq .trouble__media {
    border-top: 0;
    border-left: 2px solid var(--line-strong);
  }
}

/* ---------- 联系客服 ---------- */
.page-faq .help {
  position: relative;
  overflow: hidden;
  margin-top: 64px;
  padding: 32px 22px;
  background: linear-gradient(135deg, var(--deep) 0%, #0E2136 100%);
  border: 2px solid var(--line-strong);
  box-shadow: var(--shadow-hard-lg);
  scroll-margin-top: calc(var(--band-h) + 28px);
}

.page-faq .help::before {
  content: "";
  position: absolute;
  left: 35%;
  right: -12%;
  bottom: -70px;
  height: 200px;
  background: radial-gradient(52% 100% at 50% 100%, rgba(127, 182, 217, 0.22), transparent 70%);
  pointer-events: none;
}

.page-faq .help__title,
.page-faq .help__lede,
.page-faq .help__list {
  position: relative;
  z-index: 2;
}

.page-faq .help__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.4rem, 3.6vw, 1.9rem);
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.page-faq .help__lede {
  max-width: 64ch;
  margin: 0;
  color: var(--mist-70);
  font-size: 0.9375rem;
  line-height: 1.8;
}

.page-faq .help__list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-faq .help__item {
  display: grid;
  gap: 4px;
  padding: 13px 0;
  border-bottom: 1px dashed var(--line);
}

.page-faq .help__item:last-child {
  border-bottom: 0;
}

.page-faq .help__key {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--stone);
}

.page-faq .help__val {
  color: var(--mist);
  font-size: 0.9375rem;
  word-break: break-word;
}

@media (min-width: 640px) {
  .page-faq .help__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 30px;
  }

  .page-faq .help__item {
    grid-template-columns: 5.5em minmax(0, 1fr);
    align-items: baseline;
    gap: 12px;
  }
}

@media (min-width: 768px) {
  .page-faq .help {
    padding: 42px 36px;
  }
}

/* ---------- 入场微动效 ---------- */
@media (prefers-reduced-motion: no-preference) {
  .page-faq .feedback,
  .page-faq .trouble,
  .page-faq .help {
    opacity: 1;
    transform: none;
  }

  .js .page-faq .feedback,
  .js .page-faq .trouble,
  .js .page-faq .help {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.5s ease, transform 0.5s ease;
  }

  .js .page-faq .feedback.is-in,
  .js .page-faq .trouble.is-in,
  .js .page-faq .help.is-in {
    opacity: 1;
    transform: none;
  }
}
<<<END>>>