.page-faq {
  --faq-line: rgba(52, 224, 224, .2);
  --faq-line-soft: rgba(159, 176, 204, .16);
  --faq-panel: rgba(20, 42, 85, .62);
  --faq-panel-2: rgba(30, 58, 110, .72);
  --faq-rail-w: 330px;
  color: var(--cloud);
  background: var(--night);
  font-family: var(--font-sans);
}

.page-faq *,
.page-faq *::before,
.page-faq *::after {
  box-sizing: border-box;
}

.page-faq .wrap {
  width: 100%;
  max-width: var(--w-max, 1320px);
  margin: 0 auto;
  padding-left: var(--pad, 20px);
  padding-right: var(--pad, 20px);
}

/* ===================== 首屏 ===================== */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: 128px 0 52px;
  background:
    radial-gradient(circle at 84% 14%, rgba(52, 224, 224, .16), transparent 52%),
    radial-gradient(circle at 6% 86%, rgba(123, 92, 255, .2), transparent 58%),
    linear-gradient(180deg, rgba(20, 42, 85, .55), rgba(11, 27, 58, 0) 70%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: 88px;
  right: -130px;
  width: 460px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  transform: rotate(-26deg);
  opacity: .5;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: 210px;
  right: -60px;
  width: 320px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--violet), transparent);
  transform: rotate(-26deg);
  opacity: .45;
  pointer-events: none;
}

.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 26px;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--mist);
}

.page-faq .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-hero__eyebrow {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-hero h1 {
  margin: 0 0 24px;
  max-width: 17em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 6.4vw, 58px);
  line-height: 1.13;
  letter-spacing: -.015em;
  overflow-wrap: break-word;
}

.page-faq .faq-hero__lead {
  margin: 0 0 40px;
  max-width: 62ch;
  font-size: 17px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-hero__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--faq-line-soft);
  border-left: 1px solid var(--faq-line-soft);
}

.page-faq .faq-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px;
  border-right: 1px solid var(--faq-line-soft);
  border-bottom: 1px solid var(--faq-line-soft);
  background: rgba(20, 42, 85, .38);
}

.page-faq .faq-hero__num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-hero__facts li:nth-child(2) .faq-hero__num { color: var(--orange); }
.page-faq .faq-hero__facts li:nth-child(3) .faq-hero__num { color: var(--lilac); }
.page-faq .faq-hero__facts li:nth-child(4) .faq-hero__num { color: var(--aurora); }

.page-faq .faq-hero__cap {
  font-size: 13px;
  line-height: 1.5;
  color: var(--mist);
}

/* ===================== 章节骨架 ===================== */
.page-faq .faq-block {
  padding: 58px 0;
  border-top: 1px solid rgba(159, 176, 204, .1);
}

.page-faq .faq-block:first-of-type {
  border-top: 0;
}

.page-faq .faq-head {
  margin: 0 0 32px;
  padding-left: 20px;
  border-left: 2px solid var(--cyan);
}

.page-faq .faq-head__num {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-faq .faq-head h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 4.6vw, 38px);
  line-height: 1.2;
  letter-spacing: -.01em;
  overflow-wrap: break-word;
}

.page-faq .faq-head p {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-block a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(52, 224, 224, .4);
}

.page-faq .faq-block a:hover,
.page-faq .faq-block a:focus-visible {
  border-bottom-color: var(--cyan);
}

/* ===================== 01 分类入口 ===================== */
.page-faq .faq-cats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

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

.page-faq .faq-cat a {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 100%;
  padding: 24px 22px 22px 26px;
  color: inherit;
  text-decoration: none;
  border-bottom: 0;
  background: linear-gradient(180deg, rgba(30, 58, 110, .78), rgba(20, 42, 85, .6));
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .faq-cat a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 20px;
  width: 3px;
  background: var(--cyan);
}

.page-faq .faq-cat--2 a::before { background: var(--orange); }
.page-faq .faq-cat--3 a::before { background: var(--lilac); }
.page-faq .faq-cat--4 a::before { background: var(--violet); }
.page-faq .faq-cat--5 a::before { background: var(--aurora); }

.page-faq .faq-cat a:hover,
.page-faq .faq-cat a:focus-visible {
  background: linear-gradient(180deg, rgba(30, 58, 110, 1), rgba(20, 42, 85, .9));
  transform: translateY(-3px);
  border-bottom: 0;
}

.page-faq .faq-cat__tag {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .faq-cat__name {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.2;
}

.page-faq .faq-cat__desc {
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--mist);
}

/* ===================== 02 两步说明 ===================== */
.page-faq .media-frame {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: linear-gradient(150deg, rgba(30, 58, 110, .85), rgba(11, 27, 58, .92));
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 24px 100%, 0 calc(100% - 24px));
}

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

.page-faq #two-step .media-frame {
  margin-bottom: 32px;
}

.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-faq .faq-step {
  position: relative;
  padding: 28px 24px 26px 78px;
  background: linear-gradient(180deg, rgba(30, 58, 110, .7), rgba(20, 42, 85, .52));
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--cyan);
}

.page-faq .faq-step--2::before {
  background: var(--orange);
}

.page-faq .faq-step__num {
  position: absolute;
  left: 22px;
  top: 28px;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--night);
  background: var(--cyan);
}

.page-faq .faq-step--2 .faq-step__num {
  background: var(--orange);
}

.page-faq .faq-step h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
}

.page-faq .faq-step p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--mist);
}

/* ===================== 03 问答工作台 ===================== */
.page-faq .faq-desk {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
}

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

.page-faq .faq-group + .faq-group {
  margin-top: 34px;
}

.page-faq .faq-group__title {
  margin: 0 0 4px;
  padding: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--lilac);
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .qa {
  border-bottom: 1px solid var(--faq-line-soft);
}

.page-faq .qa summary {
  position: relative;
  padding: 18px 42px 18px 20px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--cloud);
  cursor: pointer;
  list-style: none;
  transition: color var(--dur) var(--ease);
}

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

.page-faq .qa summary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 2px;
  background: transparent;
  transition: background var(--dur) var(--ease);
}

.page-faq .qa summary::after {
  content: "+";
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--cyan);
}

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

.page-faq .qa[open] summary::before {
  background: var(--cyan);
}

.page-faq .qa[open] summary::after {
  content: "–";
}

.page-faq .qa__body {
  padding: 0 24px 20px 20px;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--mist);
}

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

/* 右侧速查卡 */
.page-faq .faq-quick {
  position: relative;
  padding: 26px 22px 24px;
  background: linear-gradient(180deg, rgba(30, 58, 110, .92), rgba(11, 27, 58, .96));
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

.page-faq .faq-quick::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--cyan), var(--violet));
}

.page-faq .faq-quick__label {
  margin: 0 0 20px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan);
}

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

.page-faq .faq-quick__steps li {
  position: relative;
  padding: 0 0 24px 42px;
  font-size: 15px;
  line-height: 1.6;
}

.page-faq .faq-quick__steps li:last-child {
  padding-bottom: 0;
}

.page-faq .faq-quick__steps li::after {
  content: "";
  position: absolute;
  left: 13px;
  top: 30px;
  bottom: 4px;
  width: 1px;
  background: linear-gradient(180deg, rgba(52, 224, 224, .7), rgba(52, 224, 224, 0));
}

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

.page-faq .faq-quick__dot {
  position: absolute;
  left: 0;
  top: 0;
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--night);
  background: var(--cyan);
}

.page-faq .faq-quick__steps li:nth-child(2) .faq-quick__dot {
  background: var(--orange);
}

.page-faq .faq-quick__steps strong {
  display: block;
  margin-bottom: 4px;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--cloud);
}

.page-faq .faq-quick__hint {
  display: block;
  font-size: 14px;
  color: var(--mist);
}

.page-faq .faq-quick__note {
  margin: 22px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--faq-line-soft);
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

/* ===================== 04 索引排查 ===================== */
.page-faq .faq-trace {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-faq .faq-trace li {
  position: relative;
  padding: 22px 22px 22px 68px;
  background: linear-gradient(180deg, rgba(30, 58, 110, .6), rgba(20, 42, 85, .42));
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
}

.page-faq .faq-trace__idx {
  position: absolute;
  left: 22px;
  top: 22px;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-trace li:nth-child(2) .faq-trace__idx { color: var(--orange); }
.page-faq .faq-trace li:nth-child(3) .faq-trace__idx { color: var(--lilac); }
.page-faq .faq-trace li:nth-child(4) .faq-trace__idx { color: var(--aurora); }

.page-faq .faq-trace h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.35;
}

.page-faq .faq-trace p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

/* ===================== 05 使用记录 ===================== */
.page-faq .faq-record {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-faq .faq-record .media-frame {
  margin: 0;
}

.page-faq .faq-points {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-points li {
  position: relative;
  padding-left: 26px;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 10px;
  height: 10px;
  border: 1px solid var(--cyan);
  transform: rotate(45deg);
}

.page-faq .faq-record__more {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

/* ===================== 06 固定分类 ===================== */
.page-faq .faq-pins {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-faq .faq-pin {
  position: relative;
  padding: 24px 22px 22px 26px;
  background: linear-gradient(180deg, rgba(30, 58, 110, .55), rgba(20, 42, 85, .38));
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
}

.page-faq .faq-pin::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 20px;
  width: 2px;
  background: var(--lilac);
}

.page-faq .faq-pin:nth-child(2)::before { background: var(--cyan); }
.page-faq .faq-pin:nth-child(3)::before { background: var(--orange); }
.page-faq .faq-pin:nth-child(4)::before { background: var(--aurora); }

.page-faq .faq-pin h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.35;
}

.page-faq .faq-pin p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

/* ===================== 07 还没解决 ===================== */
.page-faq .faq-help {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  padding: 32px 24px;
  background: linear-gradient(140deg, rgba(123, 92, 255, .2), rgba(52, 224, 224, .1) 55%, rgba(11, 27, 58, .92));
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 26px 100%, 0 calc(100% - 26px));
}

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

.page-faq .faq-help h2 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 4.2vw, 34px);
  line-height: 1.2;
}

.page-faq .faq-help p {
  margin: 0 0 26px;
  max-width: 60ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--mist);
}

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

.page-faq .btn {
  display: inline-block;
  padding: 13px 24px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  text-decoration: none;
  border-radius: 2px;
  border-bottom: 0;
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-faq .btn--primary {
  background: var(--cyan);
  color: var(--night);
}

.page-faq .btn--primary:hover,
.page-faq .btn--primary:focus-visible {
  background: var(--cloud);
  transform: translateY(-2px);
  border-bottom: 0;
}

.page-faq .btn--ghost {
  background: transparent;
  color: var(--cyan);
  box-shadow: inset 0 0 0 1px rgba(52, 224, 224, .5);
}

.page-faq .btn--ghost:hover,
.page-faq .btn--ghost:focus-visible {
  background: rgba(52, 224, 224, .12);
  transform: translateY(-2px);
  border-bottom: 0;
}

.page-faq .faq-help__meta {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-faq .faq-help__meta li {
  display: grid;
  gap: 4px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--faq-line-soft);
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--cloud);
}

.page-faq .faq-help__meta span {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
}

/* ===================== 响应式 ===================== */
@media (min-width: 640px) {
  .page-faq .faq-cats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-trace {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-pins {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding: 148px 0 72px;
  }

  .page-faq .faq-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-block {
    padding: 78px 0;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-cats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-record {
    grid-template-columns: 380px minmax(0, 1fr);
    gap: 44px;
    align-items: center;
  }

  .page-faq .faq-help {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 46px;
    padding: 46px 42px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-desk {
    grid-template-columns: minmax(0, 1fr) var(--faq-rail-w);
    gap: 44px;
    align-items: start;
  }

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

  .page-faq .faq-cats {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-block {
    padding: 92px 0;
  }
}