.page-faq {
  --faq-line: rgba(192, 192, 192, 0.4);
  --faq-line-soft: rgba(192, 192, 192, 0.22);
  --faq-text-light: rgba(255, 255, 255, 0.76);
}

/* ===== Hero 区域 ===== */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background-color: var(--color-primary-dark);
  color: var(--color-text-inverse);
  padding: calc(var(--header-height) + 44px) 0 40px;
}

.page-faq .faq-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.25;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    linear-gradient(rgba(192, 192, 192, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(192, 192, 192, 0.07) 1px, transparent 1px);
  background-size: 48px 48px;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 2;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent) 0 30%, rgba(255, 107, 53, 0.25) 100%);
}

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

.page-faq .faq-hero .breadcrumb {
  margin-bottom: 28px;
}

.page-faq .faq-hero .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.page-faq .faq-hero .breadcrumb-list a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color 0.2s;
}

.page-faq .faq-hero .breadcrumb-list a:hover {
  color: var(--color-accent);
}

.page-faq .faq-hero .breadcrumb-list li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(192, 192, 192, 0.7);
}

.page-faq .faq-hero .breadcrumb-list li[aria-current="page"] {
  color: var(--color-accent);
}

.page-faq .faq-hero__sub {
  font-family: var(--font-heading);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin: 0 0 6px;
}

.page-faq .faq-hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  line-height: 1.05;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin: 0 0 14px;
  color: var(--color-text-inverse);
}

.page-faq .faq-hero__lead {
  max-width: 720px;
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.8);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-faq .faq-hero .btn--accent {
  border: 1px solid var(--color-accent);
  background-color: var(--color-accent);
  color: #fff;
}

.page-faq .faq-hero .btn--ghost {
  border: 1px solid rgba(255, 255, 255, 0.6);
  background: transparent;
  color: #fff;
}

.page-faq .faq-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}

.page-faq .faq-hero__tags .tag {
  margin: 0;
  padding: 6px 14px;
  border: 1px solid rgba(192, 192, 192, 0.4);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.86);
}

/* ===== 热门问答 ===== */
.page-faq .faq-hot {
  background-color: var(--color-background);
  padding: 64px 0 72px;
}

.page-faq .faq-hot__head {
  max-width: 760px;
  margin-bottom: 36px;
}

.page-faq .faq-hot .proto-label {
  color: var(--color-accent);
}

.page-faq .faq-hot__title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.6vw, 2.4rem);
  text-transform: uppercase;
  line-height: 1.1;
  color: var(--color-text-major);
  margin: 8px 0 0;
}

.page-faq .faq-hot__desc {
  margin: 12px 0 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--color-text-muted);
}

.page-faq .faq-hot__tip {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  padding: 12px 16px;
  background: #fff;
  border: 1px solid rgba(192, 192, 192, 0.5);
  border-left: 3px solid var(--color-accent);
  border-radius: 8px;
  font-size: 0.83rem;
  color: var(--color-text-muted);
  box-shadow: var(--shadow-card);
}

.page-faq .faq-hot__tip .text-mono {
  color: var(--color-accent);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
}

/* 手风琴 */
.page-faq .faq-acc {
  max-width: 880px;
}

.page-faq .faq-acc__item {
  background: #fff;
  border: 1px solid var(--faq-line);
  border-radius: 12px;
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.page-faq .faq-acc__item + .faq-acc__item {
  margin-top: 12px;
}

.page-faq .faq-acc__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  list-style: none;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.98rem;
  line-height: 1.4;
  color: var(--color-text-major);
  background: #fff;
  transition: background 0.2s ease;
}

.page-faq .faq-acc__head::-webkit-details-marker,
.page-faq .faq-acc__head::marker {
  display: none;
  content: "";
}

.page-faq .faq-acc__item[open] .faq-acc__head {
  background: rgba(245, 247, 250, 0.5);
}

.page-faq .faq-acc__head::after {
  content: "+";
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 400;
  line-height: 1;
  color: var(--color-accent);
  transition: transform 0.25s ease;
}

.page-faq .faq-acc__item[open] .faq-acc__head::after {
  transform: rotate(45deg);
}

.page-faq .faq-acc__body {
  margin: 0 24px;
  padding: 16px 0 22px;
  border-top: 1px dashed var(--faq-line);
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--color-text-major);
}

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

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

/* ===== 分类帮助 ===== */
.page-faq .faq-help {
  position: relative;
  overflow: hidden;
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  padding: 64px 0 72px;
}

.page-faq .faq-help::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 180px;
  height: 180px;
  background: linear-gradient(135deg, transparent 50%, rgba(255, 107, 53, 0.16) 50%);
  z-index: 0;
}

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

.page-faq .faq-help__head {
  max-width: 760px;
  margin-bottom: 36px;
}

.page-faq .faq-help .proto-label {
  color: var(--color-accent);
}

.page-faq .faq-help__title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3.6vw, 2.4rem);
  text-transform: uppercase;
  line-height: 1.1;
  color: #fff;
  margin: 8px 0 0;
}

.page-faq .faq-help__desc {
  margin: 12px 0 0;
  font-size: 0.92rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.72);
}

.page-faq .faq-help__grid {
  display: grid;
  gap: 18px;
}

.page-faq .faq-cat {
  display: flex;
  flex-direction: column;
  padding: 22px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--faq-line-soft);
  border-radius: 12px;
  transition: background 0.25s ease, border-color 0.25s ease;
}

.page-faq .faq-cat:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 107, 53, 0.6);
}

.page-faq .faq-cat__index {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin: 0 0 10px;
}

.page-faq .faq-cat__title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: #fff;
  margin: 0 0 8px;
}

.page-faq .faq-cat__desc {
  font-size: 0.85rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.7);
  margin: 0 0 16px;
}

.page-faq .faq-cat__list {
  flex: 1;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-cat__item {
  padding: 10px 0;
  border-top: 1px dashed rgba(192, 192, 192, 0.18);
}

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

.page-faq .faq-cat__q {
  margin: 0 0 4px;
  font-weight: 600;
  font-size: 0.87rem;
  line-height: 1.4;
  color: #fff;
}

.page-faq .faq-cat__a {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.68);
}

.page-faq .faq-cat__link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-faq .faq-cat__link:hover {
  color: var(--color-accent-light);
}

/* ===== 三步入库 ===== */
.page-faq .faq-steps {
  background-color: var(--color-background);
  padding: 64px 0 72px;
}

.page-faq .faq-steps__inner {
  display: grid;
  gap: 36px;
  align-items: center;
}

.page-faq .faq-steps__fig {
  margin: 0;
  border: 1px solid rgba(192, 192, 192, 0.4);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-float);
}

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

.page-faq .faq-steps__content {
  max-width: 560px;
}

.page-faq .faq-steps .proto-label {
  color: var(--color-accent);
}

.page-faq .faq-steps__title {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3vw, 2rem);
  text-transform: uppercase;
  line-height: 1.15;
  color: var(--color-text-major);
  margin: 8px 0 14px;
}

.page-faq .faq-steps__desc {
  margin: 0 0 24px;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--color-text-muted);
}

.page-faq .faq-steps__list {
  counter-reset: faqSteps;
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
}

.page-faq .faq-step-item {
  counter-increment: faqSteps;
  position: relative;
  padding: 0 0 22px 56px;
}

.page-faq .faq-step-item:last-child {
  padding-bottom: 0;
}

.page-faq .faq-step-item::before {
  content: counter(faqSteps);
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: #fff;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.9rem;
}

.page-faq .faq-step-item__title {
  margin: 0 0 5px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-major);
}

.page-faq .faq-step-item__desc {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--color-text-muted);
}

.page-faq .faq-steps .btn--outline {
  border: 1px solid var(--color-primary);
  background: transparent;
  color: var(--color-primary);
}

/* ===== 联系支持 ===== */
.page-faq .faq-contact {
  background-color: var(--color-primary-dark);
  color: var(--color-text-inverse);
  padding: 64px 0 72px;
}

.page-faq .faq-contact__grid {
  display: grid;
  gap: 32px;
  align-items: center;
}

.page-faq .faq-contact .proto-label {
  color: var(--color-accent);
}

.page-faq .faq-contact__title {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3vw, 2rem);
  text-transform: uppercase;
  line-height: 1.15;
  margin: 8px 0 12px;
  color: #fff;
}

.page-faq .faq-contact__desc {
  margin: 0 0 20px;
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--faq-text-light);
}

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

.page-faq .faq-contact__item {
  display: grid;
  gap: 4px;
  padding-left: 16px;
  border-left: 3px solid var(--color-accent);
}

.page-faq .faq-contact__key {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--color-accent);
}

.page-faq .faq-contact__value {
  font-size: 0.95rem;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.88);
  word-break: break-word;
}

/* ===== 响应式 ===== */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: calc(var(--header-height) + 72px) 0 56px;
  }

  .page-faq .faq-hero__lead {
    font-size: 1.02rem;
  }

  .page-faq .faq-acc__head {
    font-size: 1.08rem;
  }

  .page-faq .faq-help__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-help__grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-faq .faq-steps__inner {
    grid-template-columns: 1fr 1fr;
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: 1.1fr 0.9fr;
  }
}