.page-faq {
  --faq-radius-lg: 18px;
  --faq-radius-md: 14px;
  --faq-radius-sm: 10px;
  --faq-gap: 1.25rem;
  background: var(--neutral-200);
  color: var(--neutral-600);
}

.page-faq a {
  color: inherit;
}

/* ===== 顶部横幅 ===== */
.page-faq .faq-hero {
  position: relative;
  background:
    radial-gradient(circle at 12% 20%, rgba(29, 78, 141, 0.55) 0%, transparent 42%),
    linear-gradient(120deg, var(--primary-900) 0%, var(--primary-700) 100%);
  color: var(--neutral-100);
  overflow: hidden;
}

.page-faq .faq-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.22;
  display: block;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  padding-top: clamp(2.5rem, 6vw, 4.5rem);
  padding-bottom: clamp(3rem, 7vw, 5.5rem);
}

.page-faq .faq-hero .breadcrumbs__link {
  color: rgba(255, 255, 255, 0.66);
  text-decoration: none;
}

.page-faq .faq-hero .breadcrumbs__link:hover {
  color: var(--accent-300);
}

.page-faq .faq-hero .breadcrumbs__item[aria-current="page"] {
  color: rgba(255, 255, 255, 0.92);
}

.page-faq .faq-hero .section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(242, 92, 5, 0.2);
  border: 1px solid rgba(242, 92, 5, 0.45);
  color: var(--accent-300);
  padding: 0.3rem 0.75rem;
  clip-path: polygon(8px 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 1.75rem;
  align-items: end;
  margin-top: 1.5rem;
}

.page-faq .faq-hero .page-title {
  margin: 0.75rem 0 0.9rem;
  font-family: var(--font-heading);
  font-weight: 900;
  color: var(--neutral-100);
  line-height: 1.16;
  font-size: clamp(2.05rem, 5.2vw, 3.5rem);
  letter-spacing: -0.02em;
  max-width: 18em;
}

.page-faq .faq-hero .page-lead {
  margin: 0;
  max-width: 44em;
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(0.95rem, 1.4vw, 1.06rem);
  line-height: 1.8;
}

.page-faq .faq-hero__meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  padding: 1rem 1.1rem;
  border-radius: var(--faq-radius-md);
  max-width: 420px;
}

.page-faq .faq-hero__meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  border-left: 2px solid var(--accent-500);
  padding-left: 0.7rem;
}

.page-faq .faq-hero__meta-item strong {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.35rem;
  color: var(--neutral-100);
  line-height: 1.1;
}

.page-faq .faq-hero__meta-item span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.58);
  letter-spacing: 0.05em;
}

.page-faq .faq-hero__stripe {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 38%;
  height: 6px;
  background: var(--accent-500);
  transform: skewX(-24deg);
  transform-origin: left bottom;
}

.page-faq .faq-hero__big {
  position: absolute;
  right: clamp(0.5rem, 6vw, 4.5rem);
  bottom: -0.28em;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(5.5rem, 15vw, 10.5rem);
  line-height: 0.8;
  color: rgba(255, 255, 255, 0.045);
  letter-spacing: -0.05em;
  pointer-events: none;
  user-select: none;
  z-index: 0;
}

/* ===== 快速定位 ===== */
.page-faq .faq-quick {
  padding-top: clamp(2.5rem, 5vw, 4rem);
}

.page-faq .faq-quick__head {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  margin-bottom: 1.25rem;
}

.page-faq .faq-quick__num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-500);
  letter-spacing: 0.08em;
}

.page-faq .faq-quick__title {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(1.4rem, 2.6vw, 1.9rem);
  color: var(--primary-900);
  margin: 0;
}

.page-faq .faq-quick__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-faq .faq-quick__card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.55rem;
  background: var(--neutral-100);
  border-radius: var(--faq-radius-lg);
  padding: 1.4rem 1.5rem;
  color: var(--neutral-600);
  text-decoration: none;
  border: 1px solid rgba(10, 30, 60, 0.05);
  box-shadow: 0 8px 24px rgba(10, 30, 60, 0.06);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-quick__card::before {
  content: "";
  position: absolute;
  top: 0;
  left: -6px;
  width: 6px;
  height: 100%;
  background: var(--accent-500);
  transform: skewX(-16deg);
  opacity: 0;
  transition: opacity 0.2s ease, left 0.2s ease;
}

.page-faq .faq-quick__card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 30px rgba(242, 92, 5, 0.14);
  border-color: rgba(242, 92, 5, 0.2);
}

.page-faq .faq-quick__card:hover::before {
  opacity: 1;
  left: 0;
}

.page-faq .faq-quick__num {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--primary-500);
  letter-spacing: 0.06em;
}

.page-faq .faq-quick__title {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.2rem;
  color: var(--primary-900);
  line-height: 1.35;
}

.page-faq .faq-quick__desc {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--neutral-600);
}

.page-faq .faq-quick__arrow {
  width: 22px;
  height: 22px;
  color: var(--accent-500);
  margin-top: 0.25rem;
  transition: transform 0.2s ease;
}

.page-faq .faq-quick__card:hover .faq-quick__arrow {
  transform: translateX(4px);
}

/* ===== 左右分栏 ===== */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: start;
  padding-top: 2rem;
  padding-bottom: 4rem;
}

/* ===== 左侧分类索引 ===== */
.page-faq .faq-index {
  position: relative;
  background: var(--primary-900);
  border-radius: var(--faq-radius-lg);
  padding: 1.5rem 1.4rem;
  color: var(--neutral-100);
  overflow: hidden;
}

.page-faq .faq-index::after {
  content: "";
  position: absolute;
  right: -18px;
  top: -18px;
  width: 84px;
  height: 84px;
  background: rgba(242, 92, 5, 0.14);
  transform: rotate(16deg);
  border-radius: 12px;
  pointer-events: none;
}

.page-faq .faq-index__head {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 1.2rem;
}

.page-faq .faq-index__head {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
}

.page-faq .faq-index__head .index-num {
  color: var(--accent-300);
  font-size: 0.85rem;
}

.page-faq .faq-index__list {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.55rem;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.25) transparent;
}

.page-faq .faq-index__item {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  flex: 0 0 auto;
  padding: 0.72rem 0.95rem;
  border-radius: var(--faq-radius-sm);
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
  font-size: 0.92rem;
  line-height: 1.2;
  border: 1px solid transparent;
  transition: background 0.2s ease, color 0.2s ease;
}

.page-faq .faq-index__item .index-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--neutral-400);
  transition: color 0.2s ease;
}

.page-faq .faq-index__item:hover {
  background: rgba(255, 255, 255, 0.07);
  color: var(--neutral-100);
}

.page-faq .faq-index__item.is-active {
  position: relative;
  background: linear-gradient(100deg, var(--accent-500) 0%, rgba(255, 122, 80, 0.88) 100%);
  color: var(--neutral-100);
  font-weight: 600;
}

.page-faq .faq-index__item.is-active::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 18%;
  bottom: 18%;
  width: 5px;
  background: var(--neutral-100);
  border-radius: 0 3px 3px 0;
  transform: skewY(-14deg);
}

.page-faq .faq-index__item.is-active .index-num {
  color: var(--neutral-100);
}

.page-faq .faq-index__help {
  margin-top: 1.4rem;
  padding: 1.15rem 1.1rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--faq-radius-md);
}

.page-faq .faq-index__help .section-label {
  display: inline-block;
  background: rgba(242, 92, 5, 0.22);
  color: var(--accent-300);
  padding: 0.22rem 0.6rem;
  clip-path: polygon(6px 0, 100% 0, calc(100% - 6px) 100%, 0 100%);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

.page-faq .faq-index__help p {
  margin: 0.6rem 0 1rem;
  font-size: 0.84rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.7);
}

.page-faq .faq-index .btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.1rem;
  border-radius: var(--faq-radius-sm);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.88rem;
  text-decoration: none;
  color: var(--neutral-100);
  background: var(--accent-500);
  border: 1px solid var(--accent-500);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-index .btn:hover {
  background: var(--accent-300);
  border-color: var(--accent-300);
}

/* ===== 右侧内容区 ===== */
.page-faq .faq-content {
  display: grid;
  gap: var(--faq-gap);
  min-width: 0;
}

.page-faq .faq-section {
  background: var(--neutral-100);
  border-radius: var(--faq-radius-lg);
  padding: clamp(1.25rem, 3vw, 2rem);
  box-shadow: 0 10px 28px rgba(10, 30, 60, 0.06);
  scroll-margin-top: calc(var(--header-height) + 22px);
}

.page-faq .faq-section__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  border-bottom: 2px solid var(--neutral-200);
  padding-bottom: 1rem;
  margin-bottom: 1.2rem;
}

.page-faq .faq-section__head h2 {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  flex-wrap: wrap;
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(1.25rem, 2.4vw, 1.55rem);
  color: var(--primary-900);
  line-height: 1.3;
}

.page-faq .faq-section__count {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-500);
  letter-spacing: 0.07em;
  padding: 0.2rem 0.5rem;
  background: rgba(242, 92, 5, 0.09);
  border-radius: 6px;
}

.page-faq .faq-section__meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--neutral-400);
  letter-spacing: 0.05em;
}

/* ===== 折叠问答 ===== */
.page-faq .faq-items {
  display: grid;
  gap: 0.8rem;
}

.page-faq .faq-item {
  border: 1px solid var(--neutral-200);
  border-radius: var(--faq-radius-md);
  background: var(--neutral-100);
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-faq .faq-item[open] {
  border-color: rgba(242, 92, 5, 0.38);
  box-shadow: 0 6px 18px rgba(242, 92, 5, 0.07);
}

.page-faq .faq-item__summary {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 1rem 1.15rem;
  cursor: pointer;
  list-style: none;
  transition: background 0.18s ease;
}

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

.page-faq .faq-item__summary:hover {
  background: var(--neutral-200);
}

.page-faq .faq-item[open] .faq-item__summary {
  background: rgba(242, 92, 5, 0.04);
}

.page-faq .faq-item__tag {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--accent-500);
  background: rgba(242, 92, 5, 0.1);
  padding: 0.28rem 0.55rem;
  border-radius: 6px;
  letter-spacing: 0.04em;
}

.page-faq .faq-item__title {
  flex: 1;
  font-weight: 600;
  font-size: 0.96rem;
  color: var(--primary-900);
  line-height: 1.55;
  min-width: 0;
}

.page-faq .faq-item__icon {
  flex: none;
  width: 20px;
  height: 20px;
  color: var(--primary-500);
  transition: transform 0.28s ease, color 0.2s ease;
}

.page-faq .faq-item[open] .faq-item__icon {
  transform: rotate(180deg);
  color: var(--accent-500);
}

.page-faq .faq-item__body {
  padding: 1rem 1.15rem 1.15rem;
  border-top: 1px dashed var(--neutral-200);
  color: var(--neutral-600);
  font-size: 0.94rem;
  line-height: 1.8;
}

.page-faq .faq-item__body p {
  margin: 0.55em 0;
}

.page-faq .faq-item__body a {
  color: var(--primary-500);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(27, 77, 142, 0.35);
}

.page-faq .faq-item__body a:hover {
  color: var(--accent-500);
  text-decoration-color: var(--accent-500);
}

/* 排查步骤列表 */
.page-faq .faq-steps {
  margin: 0.9rem 0;
  padding: 0;
  list-style: none;
  counter-reset: faq-step;
}

.page-faq .faq-steps li {
  position: relative;
  counter-increment: faq-step;
  padding: 0.5em 0 0.5em 2.2em;
  font-size: 0.94rem;
  line-height: 1.7;
}

.page-faq .faq-steps li::before {
  content: counter(faq-step);
  position: absolute;
  left: 0;
  top: 0.58em;
  width: 1.5em;
  height: 1.5em;
  border-radius: 6px;
  background: var(--primary-900);
  color: var(--neutral-100);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  display: grid;
  place-items: center;
  box-shadow: 0 2px 6px rgba(10, 30, 60, 0.24);
}

.page-faq .faq-steps li strong {
  color: var(--neutral-800);
}

/* ===== 苹果设备图文排布 ===== */
.page-faq .faq-apple-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

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

.page-faq .faq-apple__imgcard {
  margin: 0;
  background: var(--neutral-200);
  border-radius: var(--faq-radius-md);
  padding: 0.9rem;
  text-align: center;
  border: 1px solid rgba(10, 30, 60, 0.05);
}

.page-faq .faq-apple__imgcard img {
  width: 100%;
  height: auto;
  max-width: 200px;
  border-radius: var(--faq-radius-sm);
  display: block;
  margin: 0 auto;
}

.page-faq .faq-apple__imgcard figcaption {
  margin-top: 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--neutral-400);
  line-height: 1.5;
}

/* ===== 热门问题 ===== */
.page-faq .faq-tags {
  padding-bottom: 2rem;
}

.page-faq .faq-tags__inner {
  position: relative;
  background: var(--primary-900);
  border-radius: var(--faq-radius-lg);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  color: var(--neutral-100);
  overflow: hidden;
}

.page-faq .faq-tags__inner::before {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 34%;
  height: 8px;
  background: var(--accent-500);
  transform: skewX(-22deg);
  transform-origin: right bottom;
}

.page-faq .faq-tags__inner .section-label {
  display: inline-block;
  background: rgba(242, 92, 5, 0.2);
  border: 1px solid rgba(242, 92, 5, 0.4);
  color: var(--accent-300);
  padding: 0.26rem 0.7rem;
  clip-path: polygon(7px 0, 100% 0, calc(100% - 7px) 100%, 0 100%);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
}

.page-faq .faq-tags__title {
  margin: 0.75rem 0 1.2rem;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(1.4rem, 3vw, 2rem);
  color: var(--neutral-100);
}

.page-faq .faq-tags__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  position: relative;
  z-index: 1;
}

.page-faq .faq-tags__item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.95rem 1.05rem;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--faq-radius-md);
  color: rgba(255, 255, 255, 0.88);
  text-decoration: none;
  font-size: 0.9rem;
  line-height: 1.5;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.page-faq .faq-tags__item:hover {
  background: rgba(242, 92, 5, 0.2);
  border-color: var(--accent-500);
  transform: translateY(-2px);
}

.page-faq .faq-tags__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--accent-300);
  opacity: 0.85;
}

.page-faq .faq-tags__text {
  flex: 1;
  min-width: 0;
}

.page-faq .faq-tags__arrow {
  flex: none;
  width: 18px;
  height: 18px;
  color: var(--accent-300);
  transition: transform 0.2s ease;
}

.page-faq .faq-tags__item:hover .faq-tags__arrow {
  transform: translateX(3px);
}

/* ===== 底部联系 ===== */
.page-faq .faq-followup {
  padding-bottom: 4rem;
}

.page-faq .faq-followup__title {
  margin: 0 0 1.2rem;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  color: var(--primary-900);
}

.page-faq .faq-followup__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-faq .faq-followup__card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.8rem;
  background: var(--neutral-100);
  border-radius: var(--faq-radius-lg);
  padding: 1.5rem;
  box-shadow: 0 8px 22px rgba(10, 30, 60, 0.06);
  border-top: 4px solid var(--accent-500);
}

.page-faq .faq-followup__card--service {
  border-top-color: var(--primary-500);
}

.page-faq .faq-followup__label {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--accent-500);
  background: rgba(242, 92, 5, 0.08);
  padding: 0.22rem 0.55rem;
  border-radius: 5px;
}

.page-faq .faq-followup__card--service .faq-followup__label {
  color: var(--primary-500);
  background: rgba(27, 77, 142, 0.08);
}

.page-faq .faq-followup__text {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--neutral-600);
}

.page-faq .faq-followup__card .btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.62rem 1.15rem;
  border-radius: var(--faq-radius-sm);
  font-weight: 600;
  font-size: 0.88rem;
  text-decoration: none;
  background: var(--accent-500);
  color: var(--neutral-100);
  border: 1px solid var(--accent-500);
  transition: background 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-followup__card .btn:hover {
  background: var(--accent-300);
  border-color: var(--accent-300);
}

.page-faq .faq-followup__card .btn--ghost {
  background: transparent;
  color: var(--primary-500);
  border-color: var(--primary-500);
}

.page-faq .faq-followup__card .btn--ghost:hover {
  background: rgba(27, 77, 142, 0.08);
}

/* ===== 平板及以上 ===== */
@media (min-width: 640px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1fr) 320px;
  }

  .page-faq .faq-hero__meta {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-faq .faq-quick__grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 0.4rem;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq-index__item {
    flex: auto;
  }

  .page-faq .faq-apple-block {
    grid-template-columns: minmax(0, 1fr) 190px;
    align-items: start;
  }

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

/* ===== 桌面 ===== */
@media (min-width: 992px) {
  .page-faq .faq-layout {
    grid-template-columns: 290px minmax(0, 1fr);
    gap: 2rem;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-height) + 24px);
    padding: 1.7rem 1.5rem;
  }

  .page-faq .faq-hero__title-block .page-lead {
    font-size: 1.02rem;
  }
}

/* ===== 减少动效 ===== */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick__card,
  .page-faq .faq-tags__item,
  .page-faq .faq-item__icon,
  .page-faq .faq-tags__arrow,
  .page-faq .faq-quick__arrow {
    transition: none;
    transform: none;
  }

  .page-faq {
    scroll-behavior: auto;
  }
}