.page-faq {
  --faq-line: rgba(30, 93, 156, 0.16);
  --faq-line-strong: rgba(30, 93, 156, 0.3);
  --faq-cut: 20px;
  display: block;
  background: var(--yx-mist);
  color: var(--yx-ink);
  font-family: var(--yx-sans);
}

.page-faq .faq-intro {
  position: relative;
  padding: clamp(26px, 5vw, 56px) 0 clamp(26px, 4vw, 44px);
  background:
    radial-gradient(120% 100% at 88% 0%, rgba(74, 143, 212, 0.22), transparent 62%),
    linear-gradient(180deg, #ffffff 0%, var(--yx-mist) 100%);
  border-bottom: 1px solid var(--faq-line);
  overflow: hidden;
}

.page-faq .faq-intro::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(10, 42, 74, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 42, 74, 0.05) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 78%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 78%);
  pointer-events: none;
}

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

.page-faq .yx-crumbs {
  margin-bottom: 22px;
}

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

.page-faq .faq-intro__title {
  margin: 0 0 18px;
  max-width: 22ch;
  font-size: clamp(28px, 5.2vw, 50px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.015em;
  color: var(--yx-deep);
}

.page-faq .faq-intro__lead {
  margin: 0;
  max-width: 66ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--yx-gray);
}

.page-faq .faq-intro__facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: clamp(24px, 4vw, 38px) 0 0;
  padding: 0;
  background: var(--faq-line);
  border: 1px solid var(--faq-line);
}

@media (min-width: 760px) {
  .page-faq .faq-intro__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .faq-fact {
  padding: 16px 18px;
  background: rgba(255, 255, 255, 0.86);
}

.page-faq .faq-fact dt {
  margin: 0 0 7px;
  font-family: var(--yx-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--yx-orange);
}

.page-faq .faq-fact dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--yx-mid);
}

/* ---------- 双栏主体 ---------- */
.page-faq .faq-body {
  background: linear-gradient(180deg, var(--yx-mist) 0%, #ffffff 42%, var(--yx-mist) 100%);
}

.page-faq .faq-body__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 42px);
  padding: clamp(28px, 4.5vw, 60px) 0 clamp(44px, 6vw, 88px);
  align-items: start;
}

@media (min-width: 980px) {
  .page-faq .faq-body__inner {
    grid-template-columns: 214px minmax(0, 1fr);
  }
}

/* ---------- 左侧索引 ---------- */
.page-faq .faq-rail {
  min-width: 0;
}

.page-faq .faq-rail__title {
  margin: 0 0 12px;
  font-family: var(--yx-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--yx-gray);
}

.page-faq .faq-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-rail__list::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-rail__link {
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  padding: 9px 12px;
  white-space: nowrap;
  font-size: 14px;
  color: var(--yx-gray);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 0.2s var(--yx-ease), border-color 0.2s var(--yx-ease), background 0.2s var(--yx-ease);
}

.page-faq .faq-rail__link::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--faq-dot, var(--yx-bright));
  transform: translateY(-2px);
}

.page-faq .faq-rail__num {
  font-family: var(--yx-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--yx-bright);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--yx-deep);
  border-left-color: var(--yx-orange);
  background: rgba(74, 143, 212, 0.09);
}

.page-faq .faq-rail__list li:nth-child(1) .faq-rail__link { --faq-dot: #1E5D9C; }
.page-faq .faq-rail__list li:nth-child(2) .faq-rail__link { --faq-dot: #4A8FD4; }
.page-faq .faq-rail__list li:nth-child(3) .faq-rail__link { --faq-dot: #0A2A4A; }
.page-faq .faq-rail__list li:nth-child(4) .faq-rail__link { --faq-dot: #123B63; }
.page-faq .faq-rail__list li:nth-child(5) .faq-rail__link { --faq-dot: #FF7A18; }
.page-faq .faq-rail__list li:nth-child(6) .faq-rail__link { --faq-dot: #FFB454; }

@media (min-width: 980px) {
  .page-faq .faq-rail {
    position: sticky;
    top: 104px;
  }

  .page-faq .faq-rail__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding: 0;
  }

  .page-faq .faq-rail__link {
    width: 100%;
  }
}

/* ---------- 筛选条 ---------- */
.page-faq .faq-content {
  min-width: 0;
}

.page-faq .faq-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--faq-line-strong);
  margin-bottom: 4px;
}

.page-faq .faq-toolbar .yx-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-toolbar .yx-filter__btn {
  padding: 7px 14px;
  font-family: var(--yx-sans);
  font-size: 13px;
  line-height: 1.4;
  color: var(--yx-mid);
  background: #ffffff;
  border: 1px solid var(--faq-line-strong);
  cursor: pointer;
  -webkit-clip-path: polygon(7px 0, 100% 0, 100% calc(100% - 7px), calc(100% - 7px) 100%, 0 100%, 0 7px);
  clip-path: polygon(7px 0, 100% 0, 100% calc(100% - 7px), calc(100% - 7px) 100%, 0 100%, 0 7px);
  transition: background 0.2s var(--yx-ease), color 0.2s var(--yx-ease), border-color 0.2s var(--yx-ease);
}

.page-faq .faq-toolbar .yx-filter__btn:hover {
  border-color: var(--yx-orange);
  color: var(--yx-deep);
}

.page-faq .faq-toolbar .yx-filter__btn[aria-pressed="true"] {
  background: var(--yx-deep);
  border-color: var(--yx-deep);
  color: #ffffff;
}

.page-faq .faq-toolbar .yx-filter__btn:focus-visible {
  outline: 2px solid var(--yx-orange);
  outline-offset: 2px;
}

.page-faq .faq-toolbar .yx-filter__count {
  margin: 0;
  font-family: var(--yx-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--yx-gray);
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  padding: clamp(28px, 4vw, 48px) 0 4px;
  scroll-margin-top: 104px;
}

.page-faq .faq-group__num {
  margin: 0 0 10px;
  font-family: var(--yx-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--yx-orange);
}

.page-faq .faq-group__title {
  margin: 0 0 10px;
  font-size: clamp(20px, 3.1vw, 28px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--yx-deep);
}

.page-faq .faq-group__lead {
  margin: 0 0 14px;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--yx-gray);
}

/* ---------- 单条问答 ---------- */
.page-faq .faq-q {
  border-bottom: 1px solid var(--faq-line);
  background: transparent;
  transition: background 0.24s var(--yx-ease);
}

.page-faq .faq-q[open] {
  background: linear-gradient(90deg, rgba(255, 122, 24, 0.07), rgba(255, 122, 24, 0) 62%);
}

.page-faq .faq-q__q {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 4px 18px 18px;
  cursor: pointer;
  list-style: none;
  font-size: clamp(15px, 1.7vw, 16.5px);
  font-weight: 600;
  line-height: 1.65;
  color: var(--yx-deep);
  transition: color 0.2s var(--yx-ease);
}

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

.page-faq .faq-q__q::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 2px;
  background: transparent;
  transition: background 0.22s var(--yx-ease);
}

.page-faq .faq-q[open] .faq-q__q::before {
  background: var(--yx-orange);
}

.page-faq .faq-q__q::after {
  content: "";
  flex: none;
  width: 9px;
  height: 9px;
  margin-top: 7px;
  border-right: 2px solid var(--yx-blue);
  border-bottom: 2px solid var(--yx-blue);
  transform: rotate(45deg);
  transition: transform 0.24s var(--yx-ease), border-color 0.24s var(--yx-ease);
}

.page-faq .faq-q[open] .faq-q__q::after {
  transform: rotate(-135deg);
  border-color: var(--yx-orange);
}

.page-faq .faq-q__q:hover {
  color: var(--yx-blue);
}

.page-faq .faq-q__q:focus-visible {
  outline: 2px solid var(--yx-orange);
  outline-offset: -2px;
}

.page-faq .faq-q__idx {
  flex: none;
  padding-top: 4px;
  font-family: var(--yx-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--yx-bright);
}

.page-faq .faq-q[open] .faq-q__idx {
  color: var(--yx-orange);
}

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

.page-faq .faq-q__a {
  padding: 0 22px 24px 48px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--yx-gray);
}

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

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

.page-faq .faq-list {
  margin: 0 0 12px;
  padding-left: 20px;
  list-style: none;
}

.page-faq .faq-list li {
  position: relative;
  margin-bottom: 7px;
}

.page-faq .faq-list li::before {
  content: "";
  position: absolute;
  left: -14px;
  top: 10px;
  width: 6px;
  height: 2px;
  background: var(--yx-orange);
}

.page-faq .faq-mini {
  width: 100%;
  margin: 6px 0 14px;
  border-collapse: collapse;
  font-size: 13px;
}

.page-faq .faq-mini th {
  padding: 9px 11px;
  text-align: left;
  font-family: var(--yx-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--yx-deep);
  background: rgba(215, 227, 239, 0.5);
  border-bottom: 1px solid var(--faq-line-strong);
}

.page-faq .faq-mini td {
  padding: 9px 11px;
  color: var(--yx-gray);
  border-bottom: 1px solid var(--faq-line);
  vertical-align: top;
}

/* ---------- 图像容器 ---------- */
.page-faq .faq-frame {
  position: relative;
  margin: 24px 0 0;
  overflow: hidden;
  background: linear-gradient(140deg, var(--yx-deep), var(--yx-mid));
  -webkit-clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

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

.page-faq .faq-frame--steps {
  margin-top: clamp(26px, 4vw, 40px);
}

/* ---------- 三步排查 ---------- */
.page-faq .faq-steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  margin-top: 20px;
}

@media (min-width: 780px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

.page-faq .faq-step {
  position: relative;
  padding: 28px 22px 26px;
  background: linear-gradient(155deg, #ffffff 0%, rgba(215, 227, 239, 0.62) 100%);
  -webkit-clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
  overflow: hidden;
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--yx-orange) 0%, var(--yx-bright) 55%, rgba(74, 143, 212, 0) 100%);
}

.page-faq .faq-step__num {
  display: block;
  font-family: var(--yx-mono);
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--yx-orange);
}

.page-faq .faq-step__title {
  margin: 14px 0 9px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--yx-deep);
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.82;
  color: var(--yx-gray);
}

/* ---------- 对接支持 ---------- */
.page-faq .faq-contact {
  margin-top: clamp(32px, 5vw, 58px);
  padding: clamp(26px, 4vw, 44px);
  color: #ffffff;
  background:
    radial-gradient(120% 170% at 100% 0%, rgba(74, 143, 212, 0.34), rgba(74, 143, 212, 0) 64%),
    linear-gradient(150deg, var(--yx-deep) 0%, var(--yx-mid) 100%);
  -webkit-clip-path: polygon(0 0, 100% 0, 100% calc(100% - 34px), calc(100% - 34px) 100%, 0 100%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 34px), calc(100% - 34px) 100%, 0 100%);
  scroll-margin-top: 104px;
}

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

.page-faq .faq-contact__title {
  margin: 0 0 12px;
  max-width: 24ch;
  font-size: clamp(21px, 3.4vw, 32px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: #ffffff;
}

.page-faq .faq-contact__lead {
  margin: 0;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.82;
  color: rgba(215, 227, 239, 0.88);
}

.page-faq .faq-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 0;
}

.page-faq .faq-contact__meta {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 30px 0 0;
  padding: 0;
  background: rgba(215, 227, 239, 0.2);
  border: 1px solid rgba(215, 227, 239, 0.22);
}

@media (min-width: 700px) {
  .page-faq .faq-contact__meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .faq-contact__cell {
  padding: 15px 17px;
  background: rgba(10, 42, 74, 0.5);
}

.page-faq .faq-contact__cell dt {
  margin: 0 0 6px;
  font-family: var(--yx-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--yx-amber);
}

.page-faq .faq-contact__cell dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.92);
  word-break: break-word;
}

.page-faq .faq-contact__note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(215, 227, 239, 0.74);
}

/* ---------- 移动端细节 ---------- */
@media (max-width: 640px) {
  .page-faq .faq-q__a {
    padding: 0 8px 20px 44px;
  }

  .page-faq .faq-mini th,
  .page-faq .faq-mini td {
    padding: 8px 7px;
    font-size: 12px;
  }

  .page-faq .faq-intro__title {
    max-width: none;
  }
}