.page-faq {
  --faq-card: rgba(12, 36, 56, 0.88);
  --faq-line: rgba(143, 163, 181, 0.20);
  --faq-line-soft: rgba(143, 163, 181, 0.12);
  --faq-amber-deep: #9A640F;
  --faq-body: rgba(7, 26, 43, 0.78);
  --faq-paper-line: rgba(7, 26, 43, 0.12);
  --faq-gap: clamp(28px, 5vw, 64px);
  color: var(--white);
  padding-bottom: clamp(56px, 8vw, 100px);
}

.page-faq a {
  color: inherit;
  text-decoration: none;
}

.page-faq a:focus-visible,
.page-faq summary:focus-visible {
  outline: 2px solid var(--amber-500);
  outline-offset: 3px;
  border-radius: 6px;
}

.page-faq .breadcrumb {
  padding-top: clamp(14px, 3vw, 28px);
}

.page-faq .breadcrumb__link {
  color: var(--mist-400);
}

.page-faq .breadcrumb__link:hover {
  color: var(--amber-300);
}

/* 首屏 */
.faq-hero {
  padding: clamp(22px, 4vw, 44px) 0 0;
}

.faq-hero__grid {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
}

.faq-hero__lead .mono-label {
  color: var(--amber-500);
  margin-bottom: 14px;
}

.faq-hero__lead h1 {
  max-width: 18em;
  letter-spacing: -0.02em;
}

.faq-hero__lead .lede {
  color: var(--mist-400);
  max-width: 48ch;
  margin-top: 18px;
}

.faq-hero__note {
  position: relative;
  margin-top: 20px;
  padding: 12px 16px 12px 18px;
  border-left: 3px solid var(--amber-500);
  background: rgba(242, 169, 59, 0.07);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 15px;
  line-height: 1.75;
  max-width: 56ch;
}

.faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.faq-version {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, rgba(21, 52, 77, 0.92), rgba(12, 36, 56, 0.96));
}

.faq-version::after {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(242, 169, 59, 0.22), transparent 70%);
  pointer-events: none;
}

.faq-version .mono-label {
  color: var(--mist-400);
}

.faq-version__num {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 6vw, 54px);
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin: 6px 0 4px;
  color: var(--white);
}

.faq-version__num span {
  display: inline-block;
  margin-left: 10px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0;
  color: var(--amber-300);
  vertical-align: middle;
}

.faq-version__text {
  color: var(--mist-400);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 18px;
}

.faq-version__meta {
  display: grid;
  gap: 12px;
  border-top: 1px solid var(--faq-line-soft);
  padding-top: 16px;
  margin: 0;
}

.faq-version__meta dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mist-400);
  margin-bottom: 3px;
}

.faq-version__meta dd {
  margin: 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.86);
  line-height: 1.55;
}

/* 三盏灯 */
.faq-lights {
  margin-top: var(--faq-gap);
}

.faq-lights__head h2 {
  margin-bottom: 8px;
}

.faq-lights__head p {
  color: var(--mist-400);
  max-width: 52ch;
  font-size: 15px;
}

.faq-lights__grid {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.light-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px 18px 16px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-md);
  background: var(--faq-card);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.light-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--amber-500);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--dur) var(--ease);
}

.light-card:hover,
.light-card:focus-within {
  transform: translateY(-2px);
  border-color: rgba(255, 210, 122, 0.45);
}

.light-card:hover::before {
  transform: scaleY(1);
}

.light-card__top {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.light-card .status-dot {
  width: 9px;
  height: 9px;
  flex: 0 0 auto;
}

.light-card__name {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin: 0;
}

.light-card__state {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 3px 9px;
  border-radius: var(--radius-pill);
  border: 1px solid currentColor;
}

.light-card__state--ok {
  color: var(--green-400);
}

.light-card__state--watch {
  color: var(--amber-300);
}

.light-card__state--alert {
  color: var(--orange-500);
}

.light-card__desc {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.78);
}

.light-card__hint {
  font-size: 13px;
  line-height: 1.6;
  color: var(--mist-400);
  border-top: 1px dashed var(--faq-line-soft);
  padding-top: 10px;
}

.light-card__link {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--amber-300);
  align-self: flex-start;
}

.light-card__link::after {
  content: " →";
  display: inline-block;
  transition: transform var(--dur) var(--ease);
}

.light-card__link:hover::after {
  transform: translateX(3px);
}

/* 问题索引 */
.faq-index {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--faq-line-soft);
}

.faq-index__label {
  color: var(--mist-400);
  margin-right: 4px;
}

.faq-index__item {
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-pill);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.82);
  background: rgba(12, 36, 56, 0.7);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.faq-index__item:hover,
.faq-index__item:focus-visible {
  border-color: var(--amber-500);
  color: var(--amber-300);
}

/* 主图 */
.faq-figure {
  margin: clamp(26px, 4vw, 46px) 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--faq-line);
  background: var(--ink-800);
}

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

/* 工作台 */
.faq-workbench {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  margin-top: var(--faq-gap);
}

.faq-side {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-side > .mono-label {
  color: var(--mist-400);
  padding-left: 4px;
}

.faq-toc {
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-md);
  background: var(--faq-card);
  padding: 12px;
}

.faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
  counter-reset: faqtoc;
}

.faq-toc__link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--mist-400);
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.faq-toc__link::before {
  counter-increment: faqtoc;
  content: "0" counter(faqtoc);
  font-family: var(--font-mono);
  font-size: 11px;
  color: rgba(242, 169, 59, 0.65);
}

.faq-toc__link:hover,
.faq-toc__link:focus-visible {
  color: var(--white);
  background: rgba(242, 169, 59, 0.08);
  border-left-color: var(--amber-500);
}

.faq-side__note {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist-400);
  padding-left: 4px;
}

.faq-steps-panel {
  padding: clamp(20px, 3.4vw, 40px);
  border-radius: var(--radius-lg);
  background: var(--paper-050);
  color: var(--ink-900);
  border: 1px solid rgba(7, 26, 43, 0.06);
}

.faq-steps-panel > .mono-label {
  color: var(--faq-amber-deep);
}

.faq-steps-panel h2 {
  color: var(--ink-900);
  margin: 10px 0 0;
}

.faq-steps-panel__intro {
  color: var(--faq-body);
  margin-top: 10px;
  max-width: 50ch;
}

.step {
  border-top: 1px solid var(--faq-paper-line);
}

.step:first-of-type {
  margin-top: 20px;
}

.step__summary {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 16px 4px;
  cursor: pointer;
  list-style: none;
}

.step__summary::-webkit-details-marker {
  display: none;
}

.step__num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--faq-amber-deep);
  background: rgba(242, 169, 59, 0.18);
  border-radius: var(--radius-sm);
  padding: 5px 8px;
  line-height: 1;
}

.step__title {
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink-900);
}

.step__flag {
  color: var(--faq-amber-deep);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.step__summary::after {
  content: "+";
  grid-column: 3;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--faq-amber-deep);
  padding-left: 4px;
}

.step[open] .step__summary::after {
  content: "−";
}

.step[open] .step__summary {
  border-bottom: 1px dashed var(--faq-paper-line);
}

.step__body {
  padding: 4px 4px 20px;
}

.step__body p {
  color: var(--faq-body);
  font-size: 15px;
  line-height: 1.8;
  margin: 12px 0 0;
}

.step-result {
  margin-top: 14px;
  padding: 12px 14px;
  border-left: 3px solid var(--green-400);
  background: rgba(111, 175, 155, 0.14);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(7, 26, 43, 0.82);
}

.step-result strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: #3B7F6C;
  margin-bottom: 4px;
}

/* 章节通用 */
.faq-section {
  margin-top: clamp(42px, 6vw, 82px);
}

.faq-section__head {
  margin-bottom: 22px;
}

.faq-section__head .mono-label {
  color: var(--amber-500);
}

.faq-section__head h2 {
  margin: 10px 0 0;
}

.faq-section__head p {
  color: var(--mist-400);
  font-size: 15px;
  max-width: 58ch;
  margin-top: 10px;
}

/* 入口对照 */
.faq-entry__grid {
  display: grid;
  gap: 22px;
}

.faq-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-md);
  background: var(--faq-card);
  -webkit-overflow-scrolling: touch;
}

.faq-table {
  width: 100%;
  min-width: 540px;
  border-collapse: collapse;
  font-size: 14px;
}

.faq-table th {
  text-align: left;
  padding: 12px 16px;
  background: var(--ink-700);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  font-weight: 500;
  color: var(--amber-300);
  white-space: nowrap;
}

.faq-table td {
  padding: 14px 16px;
  border-top: 1px solid var(--faq-line-soft);
  color: rgba(255, 255, 255, 0.76);
  line-height: 1.65;
  vertical-align: top;
}

.faq-table td strong {
  color: var(--white);
  font-weight: 600;
}

.faq-entry__figure {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--faq-line);
  background: var(--ink-800);
}

.faq-entry__foot {
  margin-top: 16px;
  font-size: 14px;
  color: var(--mist-400);
}

.faq-entry__foot .link-arrow {
  color: var(--amber-300);
}

/* 兼容档位 */
.faq-tier-grid {
  display: grid;
  gap: 14px;
}

.faq-tier {
  padding: 18px;
  border: 1px solid var(--faq-line);
  border-top: 3px solid var(--mist-400);
  border-radius: var(--radius-md);
  background: var(--faq-card);
}

.faq-tier--stable {
  border-top-color: var(--green-400);
}

.faq-tier--watch {
  border-top-color: var(--amber-500);
}

.faq-tier--stop {
  border-top-color: var(--orange-500);
}

.faq-tier__tag {
  color: var(--mist-400);
  margin-bottom: 8px;
}

.faq-tier h3 {
  font-size: 17px;
  font-weight: 700;
  margin: 0 0 8px;
  line-height: 1.45;
}

.faq-tier p {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.76);
}

.faq-compat__paths {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.faq-path {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  border: 1px solid var(--faq-line);
  border-left: 3px solid var(--amber-500);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: rgba(12, 36, 56, 0.6);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.faq-path:hover,
.faq-path:focus-visible {
  background: rgba(21, 52, 77, 0.85);
  border-color: rgba(255, 210, 122, 0.4);
  border-left-color: var(--amber-300);
}

.faq-path__step {
  color: var(--amber-500);
}

.faq-path__title {
  font-size: 16px;
  font-weight: 700;
}

.faq-path__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist-400);
}

/* 资料下载 */
.faq-downloads__grid {
  display: grid;
  gap: 16px;
}

.faq-download-card {
  padding: clamp(18px, 3vw, 26px);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-lg);
  background: var(--faq-card);
}

.faq-download-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 14px;
}

.faq-download-card p {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(255, 255, 255, 0.78);
}

.faq-download-card .btn {
  margin-top: 18px;
}

.faq-mini-list {
  list-style: none;
  margin: 0 0 4px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.faq-mini-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: baseline;
  padding: 10px 0;
  border-top: 1px solid var(--faq-line-soft);
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.78);
}

.faq-mini-list li:first-child {
  border-top: 0;
  padding-top: 0;
}

.faq-mini-list__key {
  flex: 0 0 56px;
  color: var(--amber-300);
}

.faq-download-card--sub {
  background: linear-gradient(150deg, rgba(21, 52, 77, 0.95), rgba(12, 36, 56, 0.92));
  border-top: 3px solid var(--green-400);
}

.faq-download-card__note {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed var(--faq-line-soft);
  color: var(--mist-400) !important;
  font-size: 13px !important;
}

/* 联系支持 */
.faq-support {
  margin-top: clamp(42px, 6vw, 82px);
  display: grid;
  gap: 26px;
  padding: clamp(22px, 3.6vw, 40px);
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(21, 52, 77, 0.96), rgba(7, 26, 43, 0.98));
}

.faq-support__main .mono-label {
  color: var(--orange-500);
}

.faq-support__main h2 {
  margin: 10px 0 0;
}

.faq-support__text {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.78);
  max-width: 46ch;
}

.faq-support__main .btn {
  margin-top: 20px;
}

.faq-contact-list {
  margin: 0;
  display: grid;
  gap: 14px;
  align-content: start;
}

.faq-contact-list div {
  border-top: 1px solid var(--faq-line-soft);
  padding-top: 12px;
}

.faq-contact-list div:first-child {
  border-top: 0;
  padding-top: 0;
}

.faq-contact-list dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mist-400);
  margin-bottom: 4px;
}

.faq-contact-list dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--white);
  word-break: break-word;
}

/* 收束 */
.faq-cta {
  margin-top: clamp(30px, 5vw, 56px);
  padding: clamp(20px, 3vw, 30px);
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  border: 1px solid rgba(242, 169, 59, 0.35);
  border-radius: var(--radius-lg);
  background: radial-gradient(circle at 12% 20%, rgba(242, 169, 59, 0.16), transparent 60%), rgba(12, 36, 56, 0.86);
}

.faq-cta__text {
  font-size: 15px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.85);
  max-width: 40ch;
}

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

/* 中等屏幕 */
@media (min-width: 640px) {
  .faq-lights__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

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

@media (min-width: 900px) {
  .faq-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
  }

  .faq-workbench {
    grid-template-columns: 248px minmax(0, 1fr);
    align-items: start;
  }

  .faq-side {
    position: sticky;
    top: 92px;
  }

  .faq-entry__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    align-items: start;
  }

  .faq-downloads__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }

  .faq-support {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
    align-items: start;
  }

  .faq-version__meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }
}

@media (min-width: 1200px) {
  .faq-workbench {
    grid-template-columns: 272px minmax(0, 1fr);
  }

  .faq-hero__lead .lede {
    font-size: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}