.page-faq {
  --faq-hair: rgba(138, 154, 166, 0.26);
  --faq-ink-line: rgba(10, 28, 43, 0.12);
  --faq-muted: #46596b;
  background-color: var(--rice);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-faq .faq-crumb {
  padding-top: clamp(14px, 2vw, 22px);
}

.page-faq .faq-crumb .breadcrumb__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  color: var(--mist);
}

.page-faq .faq-crumb .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 6px;
  color: var(--mist);
}

.page-faq .faq-crumb .breadcrumb__link {
  color: var(--moss);
  text-decoration: none;
}

.page-faq .faq-crumb .breadcrumb__link:hover,
.page-faq .faq-crumb .breadcrumb__link:focus-visible {
  text-decoration: underline;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  margin-top: clamp(12px, 2vw, 20px);
  padding: clamp(28px, 5vw, 58px) 0 clamp(34px, 5vw, 66px);
  background:
    radial-gradient(120% 95% at 88% -10%, rgba(79, 156, 134, 0.22), transparent 62%),
    linear-gradient(160deg, var(--ink) 0%, var(--ink-2) 100%);
  color: var(--rice);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -140px;
  bottom: -200px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  border: 1px solid rgba(215, 154, 70, 0.24);
  pointer-events: none;
}

.page-faq .faq-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(24px, 4vw, 46px);
}

.page-faq .faq-hero__intro .eyebrow {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--celadon-soft);
}

.page-faq .faq-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(32px, 5.4vw, 62px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-hero__intro .lede {
  margin: 18px 0 0;
  max-width: 560px;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.75;
  color: rgba(245, 241, 232, 0.84);
}

.page-faq .faq-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.page-faq .faq-quick {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid rgba(138, 154, 166, 0.4);
  border-radius: 999px;
  font-size: 13.5px;
  color: var(--wash);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-quick .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--amber);
}

.page-faq .faq-quick:hover,
.page-faq .faq-quick:focus-visible {
  border-color: var(--celadon);
  background-color: rgba(79, 156, 134, 0.18);
  color: var(--paper);
}

.page-faq .faq-hero__media .media-frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--ink-3);
  border: 1px solid rgba(138, 154, 166, 0.24);
}

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

.page-faq .faq-hero__media .media-frame__caption {
  padding: 12px 16px;
  font-size: 12.5px;
  color: rgba(245, 241, 232, 0.72);
  border-top: 1px solid rgba(138, 154, 166, 0.2);
}

/* ---------- 主体双栏 ---------- */
.page-faq .faq-body {
  padding: clamp(30px, 5vw, 62px) 0 clamp(44px, 6vw, 84px);
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(22px, 3.4vw, 48px);
  align-items: start;
}

.page-faq .faq-index {
  align-self: start;
}

.page-faq .faq-index__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .faq-index__list {
  display: flex;
  gap: 4px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index__link {
  display: block;
  flex: 0 0 auto;
  padding: 8px 12px;
  font-size: 13.5px;
  color: var(--mist);
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-index__link:hover,
.page-faq .faq-index__link:focus-visible {
  color: var(--moss);
  background-color: rgba(79, 156, 134, 0.08);
}

.page-faq .faq-index__link[aria-current="true"] {
  color: var(--moss);
  font-weight: 500;
  border-bottom-color: var(--celadon);
  background-color: rgba(79, 156, 134, 0.1);
}

/* ---------- 通用区块 ---------- */
.page-faq .faq-block {
  padding: clamp(26px, 4vw, 42px) 0;
  border-top: 1px solid var(--faq-ink-line);
}

.page-faq .faq-block:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-faq .faq-block__kicker {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--celadon);
}

.page-faq .faq-block .headline {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--ink);
}

.page-faq .faq-block__lede {
  margin: 0;
  max-width: 660px;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--faq-muted);
}

.page-faq .faq-block__after {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--faq-muted);
}

.page-faq .faq-inline-link {
  color: var(--moss);
  text-decoration: none;
  border-bottom: 1px solid rgba(46, 107, 92, 0.4);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-inline-link:hover,
.page-faq .faq-inline-link:focus-visible {
  color: var(--celadon);
  border-bottom-color: var(--celadon);
}

.page-faq .note {
  margin: 18px 0 0;
  padding: 12px 16px;
  border-left: 3px solid var(--clay);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background-color: rgba(185, 105, 69, 0.08);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--faq-muted);
}

/* ---------- 三步带 ---------- */
.page-faq .step-band {
  display: grid;
  gap: 1px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  background-color: var(--faq-ink-line);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-faq .step-band__item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: clamp(18px, 2.4vw, 26px);
  background-color: var(--paper);
}

.page-faq .step-band__num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(38px, 5vw, 54px);
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: rgba(79, 156, 134, 0.55);
}

.page-faq .step-band__title {
  margin: 6px 0 0;
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
}

.page-faq .step-band__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--faq-muted);
}

/* ---------- 收藏方式 ---------- */
.page-faq .method-grid {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.page-faq .method {
  padding: clamp(18px, 2.4vw, 24px);
  background-color: var(--paper);
  border: 1px solid var(--faq-ink-line);
  border-radius: var(--radius-md);
}

.page-faq .method__title {
  margin: 12px 0 0;
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
}

.page-faq .tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-faq .tag--celadon {
  background-color: rgba(79, 156, 134, 0.14);
  color: var(--moss);
}

.page-faq .tag--amber {
  background-color: rgba(215, 154, 70, 0.18);
  color: #8a5a15;
}

.page-faq .tick-list {
  display: grid;
  gap: 9px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .tick-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.66;
  color: var(--faq-muted);
}

.page-faq .tick-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background-color: var(--celadon);
}

/* ---------- 换设备 ---------- */
.page-faq .check-list {
  display: grid;
  gap: 0;
  margin-top: 20px;
  border-top: 1px solid var(--faq-ink-line);
}

.page-faq .check-list__row {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--faq-ink-line);
}

.page-faq .check-list__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid var(--celadon);
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--moss);
}

.page-faq .check-list__title {
  margin: 4px 0 6px;
  font-size: 16.5px;
  font-weight: 600;
  color: var(--ink);
}

.page-faq .check-list__row p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--faq-muted);
}

/* ---------- 浏览器自查 ---------- */
.page-faq .faq-block--dark {
  margin: 0 calc(-1 * clamp(0px, 2vw, 16px));
  padding: clamp(24px, 3.6vw, 40px) clamp(16px, 2.4vw, 28px);
  background: linear-gradient(155deg, var(--ink) 0%, var(--ink-2) 100%);
  border-top: 0;
  border-radius: var(--radius-lg);
  color: var(--rice);
}

.page-faq .faq-block--dark .faq-block__kicker {
  color: var(--amber);
}

.page-faq .faq-block--dark .headline--light {
  color: var(--paper);
}

.page-faq .faq-block__lede--light {
  color: rgba(245, 241, 232, 0.8);
}

.page-faq .kernel-grid {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.page-faq .kernel {
  padding: 16px;
  border: 1px solid rgba(138, 154, 166, 0.26);
  border-radius: var(--radius-md);
  background-color: rgba(255, 255, 255, 0.045);
}

.page-faq .kernel__name {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  color: var(--celadon-soft);
}

.page-faq .kernel__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.65;
  color: rgba(245, 241, 232, 0.78);
}

.page-faq .lamp-row {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.page-faq .lamp {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 11px 14px;
  border: 1px solid rgba(138, 154, 166, 0.22);
  border-radius: var(--radius-sm);
  background-color: rgba(255, 255, 255, 0.06);
}

.page-faq .lamp__dot {
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.page-faq .lamp--ok .lamp__dot {
  background-color: var(--celadon);
  box-shadow: 0 0 0 3px rgba(79, 156, 134, 0.24);
}

.page-faq .lamp--part .lamp__dot {
  background-color: var(--amber);
  box-shadow: 0 0 0 3px rgba(215, 154, 70, 0.24);
}

.page-faq .lamp--up .lamp__dot {
  background-color: var(--clay);
  box-shadow: 0 0 0 3px rgba(185, 105, 69, 0.26);
}

.page-faq .lamp__text {
  font-size: 13.5px;
  line-height: 1.55;
  color: rgba(245, 241, 232, 0.88);
}

.page-faq .faq-block--dark .faq-block__lede {
  margin-top: 18px;
  color: rgba(245, 241, 232, 0.8);
}

.page-faq .faq-inline-link--light {
  color: var(--amber);
  border-bottom-color: rgba(215, 154, 70, 0.5);
}

.page-faq .faq-inline-link--light:hover,
.page-faq .faq-inline-link--light:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

.page-faq .faq-figure {
  margin: 22px 0 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(138, 154, 166, 0.24);
  background-color: rgba(255, 255, 255, 0.05);
}

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

.page-faq .faq-figure .media-frame__caption {
  padding: 10px 14px;
  font-size: 12.5px;
  line-height: 1.6;
  color: rgba(245, 241, 232, 0.7);
  border-top: 1px solid rgba(138, 154, 166, 0.2);
}

/* ---------- 目录定位 ---------- */
.page-faq .lookup-grid {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.page-faq .lookup {
  padding: 18px;
  border: 1px solid var(--faq-ink-line);
  border-left: 3px solid var(--celadon);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background-color: var(--paper);
}

.page-faq .lookup__title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}

.page-faq .lookup p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--faq-muted);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  margin-top: 20px;
  border-top: 1px solid var(--faq-ink-line);
}

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

.page-faq .faq-item__q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 2px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 500;
  line-height: 1.55;
  color: var(--ink);
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

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

.page-faq .faq-item__q:hover,
.page-faq .faq-item__q:focus-visible {
  color: var(--moss);
}

.page-faq .faq-item[open] .faq-item__q {
  color: var(--moss);
}

.page-faq .faq-item__idx {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.9;
  color: var(--mist);
}

.page-faq .faq-item__text {
  flex: 1 1 auto;
}

.page-faq .faq-item__mark {
  position: relative;
  flex: 0 0 auto;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border-radius: 50%;
  border: 1px solid var(--celadon);
  transition: background-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-faq .faq-item__mark::before,
.page-faq .faq-item__mark::after {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  border-radius: 1px;
  background-color: var(--celadon);
  transition: opacity var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-faq .faq-item__mark::before {
  width: 8px;
  height: 1.5px;
}

.page-faq .faq-item__mark::after {
  width: 1.5px;
  height: 8px;
}

.page-faq .faq-item[open] .faq-item__mark {
  background-color: var(--celadon);
  transform: rotate(180deg);
}

.page-faq .faq-item[open] .faq-item__mark::before,
.page-faq .faq-item[open] .faq-item__mark::after {
  background-color: var(--paper);
}

.page-faq .faq-item[open] .faq-item__mark::after {
  opacity: 0;
}

.page-faq .faq-item__a {
  padding: 0 2px 18px 40px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--faq-muted);
}

.page-faq .faq-item__a ul {
  display: grid;
  gap: 7px;
  margin: 0;
  padding-left: 18px;
}

.page-faq .faq-item__a li::marker {
  color: var(--celadon);
}

.page-faq .faq-item__a p {
  margin: 0 0 8px;
}

/* ---------- 联系客服 ---------- */
.page-faq .help-contact {
  margin-top: 20px;
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--faq-ink-line);
  border-left: 3px solid var(--amber);
  border-radius: var(--radius-md);
  background-color: var(--paper);
}

.page-faq .help-contact__list {
  display: grid;
  gap: 12px;
  margin: 0;
}

.page-faq .help-contact__item {
  display: grid;
  gap: 3px;
}

.page-faq .help-contact__label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-faq .help-contact__value {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .help-contact__value.mono {
  font-family: var(--font-mono);
}

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

  .page-faq .lamp-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .help-contact__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 24px;
  }
}

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

  .page-faq .kernel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: end;
  }

  .page-faq .faq-layout {
    grid-template-columns: 212px minmax(0, 1fr);
    gap: clamp(28px, 3.4vw, 56px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 18px);
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    gap: 2px;
    padding-bottom: 0;
    overflow: visible;
    border-left: 1px solid var(--faq-hair);
  }

  .page-faq .faq-index__link {
    border-bottom: 0;
    border-left: 2px solid transparent;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    white-space: normal;
  }

  .page-faq .faq-index__link[aria-current="true"] {
    border-bottom-color: transparent;
    border-left-color: var(--celadon);
  }
}

@media (max-width: 639px) {
  .page-faq .faq-hero::after {
    display: none;
  }

  .page-faq .faq-block--dark {
    margin: 0 calc(-1 * var(--gutter));
    padding-left: var(--gutter);
    padding-right: var(--gutter);
    border-radius: 0;
  }

  .page-faq .faq-item__a {
    padding-left: 2px;
  }

  .page-faq .faq-item__q {
    font-size: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick,
  .page-faq .faq-index__link,
  .page-faq .faq-inline-link,
  .page-faq .faq-item__mark,
  .page-faq .faq-item__mark::before,
  .page-faq .faq-item__mark::after,
  .page-faq .faq-item__q {
    transition: none;
  }

  .page-faq .faq-item[open] .faq-item__mark {
    transform: none;
  }
}