.page-faq {
  background: var(--ink);
  color: var(--bone);
  overflow-x: clip;
}

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

.page-faq .faq-h2 {
  font-family: var(--font-display);
  font-size: clamp(26px, 3.4vw, 44px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--bone);
}

.page-faq .faq-h2--dark {
  color: var(--ink);
}

.page-faq .eyebrow {
  margin: 0 0 14px;
}

.page-faq .eyebrow--dark {
  color: var(--ink-2);
}

.page-faq .faq-prose {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-prose--dark {
  color: var(--rock);
}

/* 首屏 */
.page-faq .faq-hero {
  position: relative;
  padding: clamp(28px, 5vw, 48px) 0 clamp(44px, 6vw, 72px);
  background:
    linear-gradient(180deg, rgba(6, 15, 28, 0.2), var(--ink) 88%),
    repeating-linear-gradient(90deg, transparent 0 119px, rgba(143, 163, 184, 0.05) 119px 120px);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: -18%;
  right: -14%;
  width: min(760px, 92vw);
  height: 118%;
  background: linear-gradient(135deg, rgba(14, 29, 51, 0.96), rgba(14, 29, 51, 0.18));
  clip-path: polygon(22% 0, 100% 0, 100% 74%, 0 100%);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 46%;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--gold));
  opacity: 0.85;
  pointer-events: none;
}

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

.page-faq .faq-hero .breadcrumb {
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-faq .faq-hero__eyebrow {
  color: var(--cyan);
}

.page-faq .faq-hero__title {
  margin: 0;
  max-width: 15ch;
  font-family: var(--font-display);
  font-size: clamp(38px, 6.2vw, 84px);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.025em;
}

.page-faq .faq-hero__lede {
  margin: 24px 0 0;
  max-width: 56ch;
  color: var(--mist);
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.8;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  margin-top: 32px;
}

.page-faq .faq-hero__textlink {
  color: var(--cyan);
  font-size: 15px;
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 208, 0.4);
  padding-bottom: 2px;
  transition: border-color 160ms ease-out, color 160ms ease-out;
}

.page-faq .faq-hero__textlink:hover,
.page-faq .faq-hero__textlink:focus-visible {
  color: var(--bone);
  border-bottom-color: var(--bone);
}

.page-faq .faq-hero__figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(32px, 5vw, 52px) 0 0;
  background: var(--mist-line);
  border: 1px solid var(--mist-line);
}

.page-faq .faq-hero__figure {
  background: rgba(6, 15, 28, 0.72);
  padding: 16px 18px;
}

.page-faq .faq-hero__figure dt {
  font-size: 12px;
  color: var(--mist);
  letter-spacing: 0.04em;
}

.page-faq .faq-hero__figure dd {
  margin: 6px 0 0;
  font-size: 20px;
  font-weight: 700;
  color: var(--bone);
}

.page-faq .faq-hero__figure dd .mono {
  color: var(--gold);
  font-size: 24px;
}

/* 章节头部 */
.page-faq .faq-section-head {
  display: grid;
  gap: 18px;
  margin-bottom: clamp(24px, 4vw, 40px);
}

.page-faq .faq-section-head__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
  max-width: 40ch;
}

.page-faq .faq-steps-section {
  padding-top: clamp(36px, 5vw, 64px);
}

/* 三步条 */
.page-faq .faq-steps {
  display: grid;
  gap: 16px;
}

.page-faq .faq-step {
  position: relative;
  padding: 24px 20px 22px;
  background: var(--ink-2);
  border: 1px solid var(--mist-line);
  border-top: 2px solid var(--coral);
  border-radius: var(--radius);
  transition: transform 180ms ease-out, border-color 180ms ease-out, background-color 180ms ease-out;
}

.page-faq .faq-step:nth-child(2) {
  border-top-color: var(--gold);
}

.page-faq .faq-step:nth-child(3) {
  border-top-color: var(--cyan);
}

.page-faq .faq-step:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
  border-top-color: var(--cyan);
  background: #10223a;
}

.page-faq .faq-step__num {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  padding: 3px 8px;
  border: 1px solid rgba(53, 224, 208, 0.35);
  border-radius: var(--radius);
}

.page-faq .faq-step__title {
  margin: 16px 0 10px;
  font-size: 20px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--bone);
}

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

.page-faq .faq-step__meta {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--mist-line);
  font-size: 12px;
  line-height: 1.6;
  color: var(--gold);
  letter-spacing: 0.02em;
}

/* 工具清单（米白区） */
.page-faq .faq-tools-section {
  color: var(--ink);
  background:
    repeating-linear-gradient(90deg, transparent 0 139px, rgba(42, 58, 77, 0.06) 139px 140px),
    var(--bone);
}

.page-faq .faq-tools__intro {
  display: grid;
  gap: 24px;
  align-items: end;
  margin-bottom: clamp(28px, 4vw, 44px);
}

.page-faq .faq-tools__intro-copy .faq-h2 {
  margin-bottom: 16px;
}

.page-faq .faq-tools__figure {
  margin: 0;
  border-color: rgba(42, 58, 77, 0.28);
}

.page-faq .faq-tools__figure .media__img,
.page-faq .faq-flow__figure .media__img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
}

.page-faq .media--wide {
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.page-faq .faq-tools__figure.media--cut {
  clip-path: polygon(0 0, 100% 0, 100% 88%, 0 100%);
}

/* 筛选 */
.page-faq .faq-tools__filter {
  position: relative;
}

.page-faq .faq-filter__labels {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(42, 58, 77, 0.18);
}

.page-faq .faq-filter__label {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 6px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink-2);
  background: transparent;
  border: 1px solid rgba(42, 58, 77, 0.35);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color 160ms ease-out, border-color 160ms ease-out, color 160ms ease-out;
}

.page-faq .faq-filter__label:hover {
  border-color: var(--clay);
  background: rgba(180, 100, 60, 0.08);
}

.page-faq .faq-tools__filter #f-all:checked ~ .faq-filter__labels label[for="f-all"],
.page-faq .faq-tools__filter #f-account:checked ~ .faq-filter__labels label[for="f-account"],
.page-faq .faq-tools__filter #f-play:checked ~ .faq-filter__labels label[for="f-play"],
.page-faq .faq-tools__filter #f-client:checked ~ .faq-filter__labels label[for="f-client"],
.page-faq .faq-tools__filter #f-record:checked ~ .faq-filter__labels label[for="f-record"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--cyan);
}

.page-faq .faq-filter__radio:focus-visible ~ .faq-filter__labels label {
  outline: none;
}

.page-faq .faq-tools__filter #f-all:focus-visible ~ .faq-filter__labels label[for="f-all"],
.page-faq .faq-tools__filter #f-account:focus-visible ~ .faq-filter__labels label[for="f-account"],
.page-faq .faq-tools__filter #f-play:focus-visible ~ .faq-filter__labels label[for="f-play"],
.page-faq .faq-tools__filter #f-client:focus-visible ~ .faq-filter__labels label[for="f-client"],
.page-faq .faq-tools__filter #f-record:focus-visible ~ .faq-filter__labels label[for="f-record"] {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-tools__filter #f-account:checked ~ .faq-tools__groups .tool-group:not([data-group="account"]),
.page-faq .faq-tools__filter #f-play:checked ~ .faq-tools__groups .tool-group:not([data-group="play"]),
.page-faq .faq-tools__filter #f-client:checked ~ .faq-tools__groups .tool-group:not([data-group="client"]),
.page-faq .faq-tools__filter #f-record:checked ~ .faq-tools__groups .tool-group:not([data-group="record"]) {
  display: none;
}

.page-faq .faq-tools__groups {
  display: grid;
  gap: 20px;
}

.page-faq .tool-group {
  padding: 22px 18px;
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid rgba(42, 58, 77, 0.2);
  border-left: 3px solid var(--moss);
  border-radius: var(--radius);
  transition: border-color 180ms ease-out, box-shadow 180ms ease-out;
}

.page-faq .tool-group:nth-child(2) {
  border-left-color: var(--coral);
}

.page-faq .tool-group:nth-child(3) {
  border-left-color: var(--gold);
}

.page-faq .tool-group:nth-child(4) {
  border-left-color: var(--clay);
}

.page-faq .tool-group:hover {
  border-color: rgba(53, 224, 208, 0.5);
  box-shadow: 0 10px 26px rgba(6, 15, 28, 0.08);
}

.page-faq .tool-group__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-bottom: 12px;
  margin-bottom: 4px;
  border-bottom: 1px solid rgba(42, 58, 77, 0.16);
}

.page-faq .tool-group__tag {
  font-size: 12px;
  color: var(--bone);
  background: var(--ink);
  padding: 2px 7px;
  border-radius: var(--radius);
  letter-spacing: 0.08em;
}

.page-faq .tool-group__title {
  margin: 0;
  font-size: 17px;
  font-weight: 800;
  color: var(--ink);
  flex: 1 1 auto;
}

.page-faq .tool-group__count {
  font-size: 12px;
  color: var(--rock);
  letter-spacing: 0.04em;
}

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

.page-faq .tool-item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  padding: 12px 0;
  border-bottom: 1px dashed rgba(42, 58, 77, 0.16);
}

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

.page-faq .tool-item__num {
  font-size: 12px;
  line-height: 1.9;
  color: var(--clay);
  letter-spacing: 0.06em;
}

.page-faq .tool-item__body {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.page-faq .tool-item__body strong {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.page-faq .tool-item__body span {
  font-size: 13px;
  line-height: 1.7;
  color: #46586b;
}

.page-faq .faq-tools__foot {
  margin: 28px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--rock);
}

.page-faq .faq-tools__foot .link-under {
  color: var(--ink);
}

/* 问答区 */
.page-faq .faq-layout {
  display: grid;
  gap: 28px;
}

.page-faq .faq-rail {
  border: 1px solid var(--mist-line);
  background: rgba(14, 29, 51, 0.6);
  padding: 16px;
  border-radius: var(--radius);
}

.page-faq .faq-rail__title {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist);
  text-transform: uppercase;
}

.page-faq .faq-rail__nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px 8px;
}

.page-faq .faq-rail__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 10px;
  font-size: 13px;
  color: var(--bone);
  text-decoration: none;
  border-left: 2px solid var(--moss);
  background: rgba(6, 15, 28, 0.5);
  transition: color 160ms ease-out, background-color 160ms ease-out, border-color 160ms ease-out;
}

.page-faq .faq-rail__link:nth-child(even) {
  border-left-color: var(--coral);
}

.page-faq .faq-rail__link .mono {
  font-size: 11px;
  color: var(--mist);
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--cyan);
  background: var(--cyan-soft);
  border-left-color: var(--cyan);
}

.page-faq .faq-qa {
  display: grid;
  gap: 26px;
  min-width: 0;
}

.page-faq .qa-group {
  scroll-margin-top: 96px;
}

.page-faq .qa-group__title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--mist-line);
  font-size: 16px;
  font-weight: 800;
  color: var(--bone);
}

.page-faq .qa-item {
  margin-bottom: 8px;
  background: var(--ink-2);
  border: 1px solid var(--mist-line);
  border-left: 2px solid transparent;
  border-radius: var(--radius);
  transition: border-color 160ms ease-out, background-color 160ms ease-out;
}

.page-faq .qa-item:hover {
  border-color: rgba(53, 224, 208, 0.4);
}

.page-faq .qa-item[open] {
  border-left-color: var(--cyan);
  background: #10223a;
}

.page-faq .qa-item__summary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 16px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--bone);
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa-item__summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.2;
  color: var(--cyan);
  transition: color 160ms ease-out;
}

.page-faq .qa-item[open] .qa-item__summary::after {
  content: "−";
  color: var(--coral);
}

.page-faq .qa-item__summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .qa-item__body {
  padding: 0 16px 18px;
  border-top: 1px solid var(--mist-line);
  margin-top: 0;
  padding-top: 14px;
}

.page-faq .qa-item__body p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

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

.page-faq .qa-item__meta {
  font-size: 12px !important;
  color: var(--gold) !important;
  letter-spacing: 0.03em;
}

/* 流程详解 */
.page-faq .faq-flow {
  display: grid;
  gap: 28px;
}

.page-faq .faq-flow__figure {
  margin: 0;
  position: relative;
  border: 1px solid var(--mist-line);
}

.page-faq .faq-flow__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  margin: 0;
  padding: 10px 14px;
  font-size: 11px;
  line-height: 1.5;
  color: var(--bone);
  background: linear-gradient(180deg, rgba(6, 15, 28, 0), rgba(6, 15, 28, 0.92));
  letter-spacing: 0.02em;
}

.page-faq .flow-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .flow-item {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 16px;
  background: rgba(14, 29, 51, 0.55);
  border: 1px solid var(--mist-line);
  border-radius: var(--radius);
  transition: transform 180ms ease-out, border-color 180ms ease-out;
}

.page-faq .flow-item:hover {
  transform: translateY(-2px);
  border-color: var(--cyan);
}

.page-faq .flow-item__num {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  font-size: 13px;
  color: var(--ink);
  background: var(--gold);
  border-radius: var(--radius);
  letter-spacing: 0.06em;
}

.page-faq .flow-item__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--bone);
}

.page-faq .flow-item__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .flow-item__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  margin-top: 12px !important;
}

.page-faq .flow-item__meta .mono {
  font-size: 11px;
  color: var(--mist);
  letter-spacing: 0.02em;
}

/* 人工支持 */
.page-faq .faq-support {
  display: grid;
  gap: 28px;
  padding: clamp(24px, 4vw, 44px) 0;
  border-top: 1px solid var(--mist-line);
  border-bottom: 1px solid var(--mist-line);
}

.page-faq .faq-support__lead .faq-h2 {
  margin-bottom: 16px;
}

.page-faq .faq-support__note {
  margin: 18px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--cyan);
  font-size: 14px;
  line-height: 1.8;
  color: var(--bone);
}

.page-faq .faq-support__panel {
  background:
    radial-gradient(circle at 100% 0, rgba(255, 107, 74, 0.14), transparent 58%),
    var(--ink-2);
  border: 1px solid var(--mist-line);
  padding: 20px 18px;
  border-radius: var(--radius);
}

.page-faq .faq-support__row {
  display: grid;
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px dashed rgba(143, 163, 184, 0.24);
}

.page-faq .faq-support__label {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-faq .faq-support__value {
  font-size: 15px;
  line-height: 1.65;
  color: var(--bone);
  word-break: break-word;
}

.page-faq .faq-support__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

/* 下一步 */
.page-faq .faq-next {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.page-faq .faq-next__card {
  position: relative;
  display: grid;
  gap: 6px;
  padding: 22px 18px 20px;
  border: 1px solid var(--mist-line);
  background: rgba(14, 29, 51, 0.5);
  color: var(--bone);
  text-decoration: none;
  border-radius: var(--radius);
  transition: transform 180ms ease-out, border-color 180ms ease-out, background-color 180ms ease-out;
}

.page-faq .faq-next__card:hover,
.page-faq .faq-next__card:focus-visible {
  transform: translateY(-2px);
  border-color: var(--cyan);
  background: #10223a;
}

.page-faq .faq-next__idx {
  font-size: 12px;
  color: var(--coral);
  letter-spacing: 0.1em;
}

.page-faq .faq-next__name {
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-faq .faq-next__desc {
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-next__go {
  margin-top: 8px;
  font-size: 12px;
  color: var(--cyan);
  letter-spacing: 0.04em;
}

/* 响应式 */
@media (min-width: 720px) {
  .page-faq .faq-hero__figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-steps {
    grid-template-columns: 1.15fr 0.9fr 1.05fr;
    align-items: start;
  }

  .page-faq .faq-step:nth-child(2) {
    margin-top: 26px;
  }

  .page-faq .faq-tools__intro {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 32px;
  }

  .page-faq .faq-tools__groups {
    grid-template-columns: 1.08fr 0.92fr;
    gap: 24px;
  }

  .page-faq .tool-group:nth-child(even) {
    margin-top: 32px;
  }

  .page-faq .faq-section-head {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
    align-items: end;
    gap: 24px;
  }

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

  .page-faq .faq-support {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 40px;
    align-items: start;
  }

  .page-faq .faq-next {
    grid-template-columns: 1.15fr 0.85fr;
  }

  .page-faq .faq-next__card:last-child {
    margin-top: 28px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-hero__title {
    max-width: 13ch;
  }

  .page-faq .faq-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

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

  .page-faq .faq-flow {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 40px;
    align-items: start;
  }

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

  .page-faq .qa-item__summary {
    padding: 18px 20px;
    font-size: 16px;
  }

  .page-faq .qa-item__body {
    padding: 16px 20px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-step,
  .page-faq .flow-item,
  .page-faq .faq-next__card,
  .page-faq .qa-item,
  .page-faq .tool-group {
    transition: none;
  }

  .page-faq .faq-step:hover,
  .page-faq .flow-item:hover,
  .page-faq .faq-next__card:hover,
  .page-faq .faq-next__card:focus-visible {
    transform: none;
  }
}