.page-faq {
  --faq-line: rgba(201, 169, 106, 0.24);
  --faq-soft: rgba(12, 42, 34, 0.62);
  --faq-deep: rgba(4, 18, 14, 0.92);
  background: var(--ink);
  color: var(--text-body);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-faq .faq-hero {
  position: relative;
  padding: clamp(20px, 5vw, 44px) 0 clamp(28px, 5vw, 58px);
  isolation: isolate;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(53, 242, 197, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53, 242, 197, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(120% 90% at 80% 10%, #000 0%, transparent 72%);
  mask-image: radial-gradient(120% 90% at 80% 10%, #000 0%, transparent 72%);
  pointer-events: none;
  z-index: -1;
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  align-items: center;
}

.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
  margin-bottom: 20px;
}

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

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--cyan);
  border-bottom-color: rgba(53, 242, 197, 0.6);
}

.page-faq .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--gold);
  margin: 0 0 12px;
}

.page-faq h1 {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(28px, 5.6vw, 52px);
  line-height: 1.16;
  color: var(--paper);
  margin: 0 0 18px;
  letter-spacing: -0.01em;
}

.page-faq .lede {
  margin: 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-body);
}

.page-faq .faq-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px;
}

.page-faq .tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  background: rgba(53, 242, 197, 0.08);
  border: 1px solid rgba(53, 242, 197, 0.28);
  border-radius: var(--radius-capsule);
  padding: 5px 11px;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-faq .faq-hero-actions .btn {
  text-decoration: none;
}

/* 首屏右侧：小屏取景框 */
.page-faq .sight {
  position: relative;
  padding: 14px;
  border-radius: 26px;
  border: 1px solid var(--faq-line);
  background: linear-gradient(158deg, rgba(12, 42, 34, 0.94), var(--faq-deep));
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
}

.page-faq .sight::after {
  content: "";
  position: absolute;
  right: -10%;
  bottom: -30%;
  width: 70%;
  height: 70%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(53, 242, 197, 0.16), transparent 68%);
  pointer-events: none;
  z-index: 0;
}

.page-faq .sight-screen {
  position: relative;
  z-index: 1;
  border: 1px solid rgba(53, 242, 197, 0.3);
  border-radius: 16px;
  padding: 14px;
  background: var(--ink-3);
}

.page-faq .sight-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--mist);
  margin-bottom: 12px;
}

.page-faq .sight-pill {
  color: var(--amber);
  border: 1px solid rgba(255, 159, 69, 0.45);
  border-radius: var(--radius-capsule);
  padding: 3px 8px;
  white-space: nowrap;
}

.page-faq .sight-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 11px;
  border-radius: 10px;
  background: rgba(12, 42, 34, 0.8);
  margin-bottom: 8px;
  border: 1px solid rgba(201, 169, 106, 0.16);
}

.page-faq .sight-item--live {
  border-color: rgba(255, 159, 69, 0.5);
  box-shadow: inset 0 0 0 1px rgba(255, 159, 69, 0.12);
}

.page-faq .sight-team {
  font-size: 12px;
  color: var(--mist);
}

.page-faq .sight-score {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 15px;
  color: var(--amber);
  letter-spacing: 0.04em;
}

.page-faq .sight-score--dim {
  color: var(--mist);
  font-weight: 600;
}

.page-faq .sight-trace {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 16px 4px 10px;
}

.page-faq .sight-trace::before {
  content: "";
  position: absolute;
  left: 4px;
  right: 4px;
  top: 50%;
  height: 2px;
  transform: translateY(-50%);
  background: linear-gradient(90deg, var(--amber), var(--cyan));
  opacity: 0.7;
}

.page-faq .sight-node {
  position: relative;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--cyan);
  box-sizing: border-box;
}

.page-faq .sight-node:first-child {
  border-color: var(--amber);
}

.page-faq .sight-note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--mist);
  text-align: center;
}

/* 主体：目录 + 内容流 */
.page-faq .faq-body {
  display: grid;
  gap: clamp(20px, 4vw, 44px);
  padding-top: clamp(20px, 4vw, 36px);
  padding-bottom: clamp(48px, 7vw, 84px);
}

.page-faq .faq-rail {
  position: relative;
  min-width: 0;
}

.page-faq .toc {
  border: 1px solid var(--faq-line);
  border-radius: 16px;
  background: var(--faq-soft);
  padding: 12px;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.page-faq .toc-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

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

.page-faq .toc-item {
  flex: 0 0 auto;
}

.page-faq .toc-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 11px;
  border-radius: var(--radius-capsule);
  border: 1px solid rgba(201, 169, 106, 0.2);
  color: var(--text-body);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--fast) var(--ease), border-color var(--fast) var(--ease), background var(--fast) var(--ease);
}

.page-faq .toc-num {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--gold);
}

.page-faq .toc-link:hover,
.page-faq .toc-link:focus-visible {
  color: var(--cyan);
  border-color: rgba(53, 242, 197, 0.5);
}

.page-faq .toc-link[aria-current="true"] {
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-faq .toc-link[aria-current="true"] .toc-num {
  color: var(--ink-2);
}

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

.page-faq .faq-chapter {
  border-top: 1px solid var(--line-paper);
  padding: clamp(22px, 4vw, 34px) 0;
}

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

.page-faq .chapter-head {
  display: grid;
  gap: 8px;
  margin-bottom: clamp(16px, 3vw, 24px);
}

.page-faq .chapter-no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gold);
}

.page-faq .chapter-title {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(21px, 3.4vw, 30px);
  line-height: 1.28;
  color: var(--paper);
}

.page-faq .chapter-lede {
  margin: 0;
  max-width: 62ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--mist);
}

/* 步骤条 */
.page-faq .step-track {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .step {
  position: relative;
  padding: 15px 16px 15px 20px;
  border-radius: 14px;
  border: 1px solid rgba(201, 169, 106, 0.18);
  background: linear-gradient(180deg, rgba(12, 42, 34, 0.9), rgba(6, 26, 21, 0.88));
  overflow: hidden;
}

.page-faq .step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(180deg, var(--amber), rgba(255, 159, 69, 0));
}

.page-faq .step-no {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--amber);
  margin-bottom: 6px;
}

.page-faq .step-title {
  margin: 0 0 6px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 15.5px;
  line-height: 1.45;
  color: var(--paper);
}

.page-faq .step-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-body);
}

/* 通道步骤线 */
.page-faq .path-line {
  list-style: none;
  margin: 0 0 22px;
  padding: 4px 0 4px 24px;
  position: relative;
}

.page-faq .path-line::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--amber), var(--cyan));
  opacity: 0.55;
}

.page-faq .path-step {
  position: relative;
  padding: 0 0 22px 4px;
}

.page-faq .path-step:last-child {
  padding-bottom: 0;
}

.page-faq .path-step::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 5px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--cyan);
  box-sizing: border-box;
}

.page-faq .path-step:first-child::before {
  border-color: var(--amber);
}

.page-faq .path-step-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--gold);
  margin-bottom: 6px;
}

/* 图例 */
.page-faq .signal-legend {
  display: grid;
  gap: 12px;
  margin: 0 0 22px;
}

.page-faq .legend-item {
  border: 1px solid rgba(201, 169, 106, 0.18);
  border-radius: 14px;
  padding: 16px;
  background: var(--faq-soft);
}

.page-faq .legend-item--amber {
  border-left: 3px solid var(--amber);
}

.page-faq .legend-item--cyan {
  border-left: 3px solid var(--cyan);
}

.page-faq .legend-swatch {
  display: block;
  width: 36px;
  height: 6px;
  border-radius: 3px;
  margin-bottom: 12px;
}

.page-faq .legend-item--amber .legend-swatch {
  background: var(--amber);
  box-shadow: 0 0 14px rgba(255, 159, 69, 0.6);
  animation: faq-pulse 1.2s ease-in-out 2;
}

.page-faq .legend-item--cyan .legend-swatch {
  background: var(--cyan);
  box-shadow: 0 0 14px rgba(53, 242, 197, 0.55);
  animation: faq-flash 1.4s ease-in-out 2;
}

@keyframes faq-pulse {
  0%, 100% { transform: scaleX(0.7); opacity: 0.5; }
  50% { transform: scaleX(1); opacity: 1; }
}

@keyframes faq-flash {
  0%, 100% { opacity: 0.55; }
  50% { opacity: 1; }
}

/* 排查分支 */
.page-faq .branch {
  border: 1px solid var(--faq-line);
  border-radius: 18px;
  padding: 16px;
  background: var(--faq-soft);
  margin-bottom: 20px;
}

.page-faq .branch-root {
  margin: 0;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(201, 169, 106, 0.34);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

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

.page-faq .branch-node {
  position: relative;
  padding-left: 18px;
}

.page-faq .branch-node::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1px solid var(--cyan);
  background: rgba(53, 242, 197, 0.16);
}

/* 图片 */
.page-faq .faq-figure {
  margin: 20px 0 24px;
}

.page-faq .faq-figure .media-frame {
  border: 1px solid var(--faq-line);
  border-radius: 16px;
  overflow: hidden;
  background: var(--ink-2);
}

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

.page-faq .media-caption {
  margin-top: 8px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
}

/* 问答 */
.page-faq .qa-group-title {
  margin: 22px 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-faq .qa {
  border: 1px solid var(--line-paper);
  border-radius: 13px;
  background: rgba(12, 42, 34, 0.5);
  margin-bottom: 10px;
  overflow: hidden;
  transition: border-color var(--fast) var(--ease), background var(--fast) var(--ease);
}

.page-faq .qa[open] {
  border-color: rgba(53, 242, 197, 0.32);
  background: rgba(12, 42, 34, 0.72);
}

.page-faq .qa summary {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
}

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

.page-faq .qa summary::before {
  content: "+";
  flex: 0 0 auto;
  width: 14px;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1.2;
  color: var(--cyan);
}

.page-faq .qa[open] summary::before {
  content: "−";
  color: var(--amber);
}

.page-faq .qa summary:hover,
.page-faq .qa summary:focus-visible {
  color: var(--cyan);
  outline: none;
}

.page-faq .qa summary:focus-visible {
  box-shadow: inset 0 0 0 2px rgba(53, 242, 197, 0.55);
}

.page-faq .qa-body {
  padding: 0 16px 15px 40px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-body);
}

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

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

/* 咨询清单与联系卡 */
.page-faq .check-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .check-list li {
  position: relative;
  padding-left: 26px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-body);
}

.page-faq .check-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 7px;
  width: 12px;
  height: 7px;
  border-left: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(-45deg);
}

.page-faq .faq-contact {
  border: 1px solid var(--faq-line);
  border-radius: 18px;
  padding: 18px;
  background: var(--glass);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  display: grid;
  gap: 10px;
}

.page-faq .faq-contact-title {
  margin: 0 0 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--gold);
}

.page-faq .faq-contact-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 9px 11px;
  border-radius: 10px;
  border: 1px solid rgba(201, 169, 106, 0.18);
  background: rgba(6, 26, 21, 0.55);
}

.page-faq .faq-contact-key {
  font-size: 12px;
  color: var(--mist);
  flex: 0 0 auto;
}

.page-faq .faq-contact-val {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--paper);
  word-break: break-all;
  flex: 1 1 auto;
  min-width: 0;
}

.page-faq .copy-btn {
  flex: 0 0 auto;
  font-family: var(--font-sans);
  font-size: 12px;
  color: var(--cyan);
  background: rgba(53, 242, 197, 0.1);
  border: 1px solid rgba(53, 242, 197, 0.4);
  border-radius: var(--radius-capsule);
  padding: 4px 10px;
  cursor: pointer;
  transition: background var(--fast) var(--ease), color var(--fast) var(--ease);
}

.page-faq .copy-btn:hover,
.page-faq .copy-btn:focus-visible {
  background: var(--cyan);
  color: var(--ink);
  outline: none;
}

.page-faq .faq-contact-note {
  margin: 2px 0 4px;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-contact .btn {
  justify-self: start;
  text-decoration: none;
}

/* 相关页面 */
.page-faq .faq-next {
  display: grid;
  gap: 10px;
  margin-top: 8px;
  padding-top: clamp(20px, 4vw, 32px);
  border-top: 1px solid var(--line-paper);
}

.page-faq .faq-next-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 14px;
  border-radius: 12px;
  border: 1px solid rgba(201, 169, 106, 0.2);
  background: rgba(12, 42, 34, 0.44);
  color: var(--paper);
  font-size: 14px;
  text-decoration: none;
  transition: border-color var(--fast) var(--ease), color var(--fast) var(--ease), transform var(--fast) var(--ease);
}

.page-faq .faq-next-no {
  font-family: var(--font-mono);
  color: var(--amber);
}

.page-faq .faq-next-link:hover,
.page-faq .faq-next-link:focus-visible {
  border-color: rgba(53, 242, 197, 0.5);
  color: var(--cyan);
  outline: none;
  transform: translateX(2px);
}

@media (min-width: 640px) {
  .page-faq .signal-legend {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .branch-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 20px;
  }

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

@media (min-width: 760px) {
  .page-faq .step-track {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: clamp(32px, 5vw, 64px);
  }
}

@media (min-width: 980px) {
  .page-faq .faq-body {
    grid-template-columns: 196px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 104px;
  }

  .page-faq .toc-list {
    display: grid;
    gap: 4px;
    overflow: visible;
  }

  .page-faq .toc-link {
    display: flex;
    width: 100%;
    box-sizing: border-box;
    white-space: normal;
    border-radius: 10px;
  }
}

@media (min-width: 1080px) {
  .page-faq .step-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 380px) {
  .page-faq .faq-contact-val {
    font-size: 12px;
  }

  .page-faq .qa summary {
    font-size: 14px;
  }

  .page-faq .qa-body {
    padding-left: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .legend-swatch {
    animation: none;
  }

  .page-faq .faq-next-link {
    transition: none;
  }
}
<<<END>>>