.page-faq {
  display: block;
}

/* ============ 首屏 ============ */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 22px 0 40px;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -80px;
  width: 62%;
  height: 240px;
  background: repeating-linear-gradient(
    -46deg,
    rgba(44, 63, 134, 0.5) 0 2px,
    transparent 2px 20px
  );
  transform: rotate(-5deg);
  pointer-events: none;
}

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

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
  margin-top: 18px;
}

.page-faq .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--amber);
  text-transform: uppercase;
}

.page-faq .faq-hero__h1 {
  margin: 12px 0 16px;
  font-size: clamp(2rem, 7.6vw, 3.5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.015em;
  color: var(--cream);
  transform: skewX(-6deg);
  transform-origin: left bottom;
}

.page-faq .faq-hero__lede {
  max-width: 42ch;
  margin: 0;
  color: var(--mist);
  font-size: 16px;
  line-height: 1.78;
}

.page-faq .faq-hero__facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(128px, 1fr));
  gap: 1px;
  margin-top: 26px;
  background: var(--line);
  border: var(--bw) solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
}

.page-faq .faq-fact {
  background: var(--panel);
  padding: 14px 14px 16px;
}

.page-faq .faq-fact__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 24px;
  line-height: 1.1;
  color: var(--mint);
  letter-spacing: -0.02em;
}

.page-faq .faq-fact__label {
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--mist);
}

/* ============ 图片容器 ============ */
.page-faq .faq-figure {
  margin: 0;
  border: var(--bw) solid var(--line);
  border-radius: var(--r);
  background: var(--panel);
  box-shadow: var(--shadow);
  overflow: hidden;
}

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

.page-faq .faq-figure__cap {
  margin: 0;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--mist);
}

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

/* ============ 主体区 ============ */
.page-faq .faq-body {
  padding: 40px 0 56px;
}

.page-faq .faq-body__grid {
  display: grid;
  gap: 32px;
}

/* 筛选条 */
.page-faq .faq-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 30px;
}

.page-faq .faq-filter__in {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-faq .faq-filter__chip {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 15px;
  border: 2px solid var(--line);
  border-radius: var(--r);
  background: var(--panel);
  color: var(--mist);
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  user-select: none;
  transition: var(--t);
}

.page-faq .faq-filter__chip:hover {
  border-color: var(--amber);
  color: var(--amber);
}

.page-faq .faq-filter__in:checked + .faq-filter__chip {
  background: var(--orange);
  border-color: var(--char);
  color: var(--char);
  box-shadow: var(--shadow-sm);
}

.page-faq .faq-filter__in:focus-visible + .faq-filter__chip {
  outline: 3px solid var(--mint);
  outline-offset: 2px;
}

/* 纯 CSS 分组筛选 */
.page-faq .faq-main:has(#ff-fee:checked) .faq-group:not(.faq-group--fee),
.page-faq .faq-main:has(#ff-renew:checked) .faq-group:not(.faq-group--renew),
.page-faq .faq-main:has(#ff-device:checked) .faq-group:not(.faq-group--device),
.page-faq .faq-main:has(#ff-data:checked) .faq-group:not(.faq-group--data),
.page-faq .faq-main:has(#ff-service:checked) .faq-group:not(.faq-group--service) {
  display: none;
}

/* 分组 */
.page-faq .faq-group {
  position: relative;
  padding: 36px 0 8px;
}

.page-faq .faq-group::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 78px;
  height: var(--bw);
  background: var(--orange);
}

.page-faq .faq-group::after {
  content: "";
  position: absolute;
  top: 1px;
  left: 78px;
  right: 0;
  height: 1px;
  background: var(--line);
}

.page-faq .faq-group:first-child {
  padding-top: 8px;
}

.page-faq .faq-group:first-child::before,
.page-faq .faq-group:first-child::after {
  display: none;
}

.page-faq .faq-group__head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}

.page-faq .faq-group__num {
  flex: none;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(2.1rem, 6vw, 3rem);
  line-height: 0.88;
  letter-spacing: -0.05em;
  color: var(--orange);
}

.page-faq .faq-group__title {
  margin: 0 0 7px;
  font-size: clamp(1.25rem, 3.6vw, 1.75rem);
  font-weight: 800;
  line-height: 1.22;
  color: var(--cream);
}

.page-faq .faq-group__lede {
  margin: 0;
  max-width: 40ch;
  font-size: 14px;
  line-height: 1.65;
  color: var(--mist);
}

.page-faq .faq-group__figure {
  margin: 0 0 22px;
}

/* 折叠问答 */
.page-faq .qa {
  margin: 0 0 12px;
  border: var(--bw) solid var(--line);
  border-left: 8px solid var(--orange);
  border-radius: var(--r);
  background: var(--panel);
  transition: var(--t);
}

.page-faq .qa:hover {
  border-top-color: var(--amber);
  border-right-color: var(--amber);
  border-bottom-color: var(--amber);
}

.page-faq .qa[open] {
  border-top-color: var(--amber);
  border-right-color: var(--amber);
  border-bottom-color: var(--amber);
  box-shadow: var(--shadow-sm);
}

.page-faq .qa__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  list-style: none;
  cursor: pointer;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--cream);
  transition: var(--t);
}

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

.page-faq .qa__q::marker {
  content: "";
}

.page-faq .qa__q:hover,
.page-faq .qa[open] .qa__q {
  color: var(--amber);
}

.page-faq .qa__plus {
  flex: none;
  display: grid;
  place-items: center;
  width: 22px;
  height: 22px;
  margin-top: 1px;
  border: 2px solid var(--line);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1;
  color: var(--orange);
  transition: var(--t);
}

.page-faq .qa[open] .qa__plus {
  background: var(--orange);
  border-color: var(--char);
  color: var(--char);
}

.page-faq .qa__a {
  margin-top: 2px;
  padding: 14px 16px 16px 50px;
  border-top: 1px solid var(--line);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--mist);
}

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

.page-faq .qa__a a {
  color: var(--amber);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

/* 费用表 */
.page-faq .faq-table-wrap {
  margin: 22px 0 4px;
  overflow-x: auto;
}

.page-faq .faq-table {
  width: 100%;
  min-width: 480px;
  border: var(--bw) solid var(--line);
  border-collapse: collapse;
  background: var(--panel);
  font-size: 14px;
}

.page-faq .faq-table caption {
  caption-side: top;
  padding: 0 0 10px;
  text-align: left;
  font-size: 13px;
  color: var(--mist);
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
  line-height: 1.6;
  color: var(--cream);
}

.page-faq .faq-table thead th {
  background: rgba(255, 122, 26, 0.14);
  color: var(--amber);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.page-faq .faq-table tbody th {
  font-weight: 700;
  color: var(--cream);
}

.page-faq .faq-table tbody tr:last-child th,
.page-faq .faq-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .faq-table__price {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--mint);
  white-space: nowrap;
}

/* 时间轴 */
.page-faq .faq-timeline-wrap {
  margin: 0 0 24px;
  overflow-x: auto;
}

.page-faq .faq-timeline {
  display: block;
  width: 100%;
  min-width: 520px;
  height: auto;
}

.page-faq .tm-axis {
  stroke: var(--line);
  stroke-width: 2;
}

.page-faq .tm-dot {
  fill: var(--orange);
}

.page-faq .tm-dot--mint {
  fill: var(--mint);
}

.page-faq .tm-label {
  fill: var(--cream);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
}

.page-faq .tm-note {
  fill: var(--mist);
  font-family: var(--font-mono);
  font-size: 13px;
}

/* 下一步链接 */
.page-faq .faq-next {
  margin-top: 30px;
  padding: 20px 16px;
  border: var(--bw) solid var(--line);
  border-radius: var(--r);
  background: rgba(27, 42, 97, 0.6);
}

.page-faq .faq-next__title {
  margin: 0 0 14px;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--amber);
}

.page-faq .faq-next__row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-next__link {
  display: inline-flex;
  align-items: center;
  min-height: 46px;
  padding: 0 16px;
  border: 2px solid var(--line);
  border-radius: var(--r);
  background: var(--panel);
  color: var(--cream);
  font-size: 13.5px;
  font-weight: 700;
  text-decoration: none;
  transition: var(--t);
}

.page-faq .faq-next__link:hover {
  border-color: var(--orange);
  color: var(--char);
  background: var(--orange);
  box-shadow: var(--shadow-sm);
}

/* ============ 右侧速查面板 ============ */
.page-faq .faq-board {
  border: var(--bw) solid var(--line);
  border-radius: var(--r);
  background: var(--panel);
  box-shadow: var(--shadow);
  padding: 18px 16px 20px;
}

.page-faq .faq-board__head {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 14px;
}

.page-faq .faq-board__dot {
  flex: none;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 4px rgba(53, 240, 192, 0.16);
}

.page-faq .faq-board__title {
  margin: 0;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--cream);
}

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

.page-faq .faq-board__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
}

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

.page-faq .faq-board__name {
  font-size: 13px;
  line-height: 1.45;
  color: var(--mist);
}

.page-faq .faq-board__val {
  flex: none;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 16px;
  color: var(--mint);
  white-space: nowrap;
}

.page-faq .faq-board__marks {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-board__mark {
  display: flex;
  align-items: baseline;
  gap: 9px;
  margin: 0 0 8px;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--mist);
}

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

.page-faq .faq-board__mark b {
  flex: none;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--amber);
  white-space: nowrap;
}

.page-faq .faq-board__jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-board__jump a {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 11px;
  border: 2px solid var(--line);
  border-radius: var(--r);
  color: var(--mist);
  font-size: 12.5px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--t);
}

.page-faq .faq-board__jump a:hover {
  border-color: var(--orange);
  color: var(--amber);
  box-shadow: var(--shadow-sm);
}

/* ============ 媒体查询 ============ */
@media (min-width: 640px) {
  .page-faq .faq-hero {
    padding: 30px 0 50px;
  }

  .page-faq .qa__a {
    padding: 16px 20px 18px 54px;
  }

  .page-faq .qa__q {
    padding: 17px 20px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 38px 0 60px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: 44px;
    align-items: start;
    margin-top: 24px;
  }

  .page-faq .faq-hero__art {
    margin-top: 46px;
    max-width: none;
  }

  .page-faq .faq-body {
    padding: 56px 0 76px;
  }

  .page-faq .faq-group {
    padding: 42px 0 10px;
  }

  .page-faq .faq-group__title {
    font-size: 1.75rem;
  }
}

@media (min-width: 1020px) {
  .page-faq .faq-body__grid {
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 46px;
    align-items: start;
  }

  .page-faq .faq-side {
    position: sticky;
    top: 96px;
  }
}

@media (min-width: 1240px) {
  .page-faq .faq-hero__h1 {
    letter-spacing: -0.02em;
  }
}