.page-faq {
  --faq-cut: 12px;
  --faq-ink-soft: #3d4b60;
  --faq-ink-mute: #6b7c94;
  --faq-hair: rgba(10, 42, 92, .12);
  background-color: var(--mist);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  background:
    radial-gradient(92% 118% at 90% 4%, rgba(0, 229, 255, .18), rgba(0, 229, 255, 0) 62%),
    linear-gradient(155deg, var(--blue-900) 0%, var(--blue-800) 58%, var(--teal-700) 100%);
  color: var(--mist);
  padding: clamp(28px, 5vw, 56px) 0 clamp(40px, 6vw, 78px);
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(0, 229, 255, 0) 0%, rgba(0, 229, 255, .72) 24%, rgba(0, 229, 255, 0) 100%);
}

.page-faq .faq-crumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(26px, 4vw, 48px);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--haze);
}

.page-faq .faq-crumbs a {
  color: var(--haze);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
  transition: color .22s var(--ease), border-color .22s var(--ease);
}

.page-faq .faq-crumbs a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-faq .faq-crumbs .sep {
  color: var(--line);
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 56px);
}

@media (min-width: 960px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, .85fr);
    align-items: end;
  }
}

.page-faq .faq-hero-kicker {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-hero-title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(28px, 5.4vw, 58px);
  line-height: 1.06;
  letter-spacing: -0.015em;
  overflow-wrap: break-word;
}

.page-faq .faq-hero-lead {
  margin: clamp(18px, 3vw, 26px) 0 0;
  max-width: 36em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--haze);
}

.page-faq .faq-toc {
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.page-faq .faq-toc-label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--haze);
}

.page-faq .faq-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
}

@media (min-width: 560px) and (max-width: 959px) {
  .page-faq .faq-toc-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-faq .faq-toc-link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 9px 10px;
  color: var(--mist);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.5;
  border-left: 2px solid var(--line-ghost);
  transition: border-color .25s var(--ease), background-color .25s var(--ease), color .25s var(--ease);
}

.page-faq .faq-toc-link:hover,
.page-faq .faq-toc-link.is-active {
  border-left-color: var(--cyan);
  background: rgba(0, 229, 255, .09);
  color: #ffffff;
}

.page-faq .faq-toc-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--gold);
  flex: 0 0 auto;
}

/* ---------- 正文区 ---------- */
.page-faq .faq-body {
  padding: clamp(36px, 6vw, 84px) 0 clamp(44px, 7vw, 96px);
  background: var(--mist);
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--hdr-h) + 24px);
  padding: clamp(30px, 4.4vw, 56px) 0;
  border-top: 1px solid var(--faq-hair);
}

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

.page-faq .faq-group-head {
  position: relative;
  padding-left: 18px;
  border-left: 4px solid var(--cyan);
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-faq .faq-group-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--gold);
  margin-bottom: 8px;
}

.page-faq .faq-group-title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(22px, 3.2vw, 34px);
  line-height: 1.2;
  color: var(--blue-800);
  letter-spacing: -0.01em;
}

.page-faq .faq-group-lead {
  margin: 10px 0 0;
  max-width: 48em;
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.78;
  color: var(--faq-ink-soft);
}

.page-faq .faq-group-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 36px);
}

@media (min-width: 960px) {
  .page-faq .faq-group-body--split {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, .85fr);
    align-items: start;
  }
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa {
  position: relative;
  background: #ffffff;
  border: 1px solid var(--faq-hair);
  border-left: 3px solid rgba(10, 42, 92, .16);
  margin-bottom: 10px;
  clip-path: polygon(var(--faq-cut) 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%, 0 var(--faq-cut));
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
}

.page-faq .qa:hover {
  border-left-color: var(--blue-800);
}

.page-faq .qa[open] {
  border-left-color: var(--cyan);
  box-shadow: 0 14px 34px -22px rgba(10, 42, 92, .55);
}

.page-faq .qa-q {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.55;
  color: var(--blue-800);
  -webkit-user-select: none;
  user-select: none;
}

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

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

.page-faq .qa-q-text {
  display: block;
}

.page-faq .qa-q-icon {
  position: relative;
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin-top: 4px;
  border: 1px solid rgba(10, 42, 92, .28);
  border-radius: 50%;
  transition: border-color .25s var(--ease);
}

.page-faq .qa-q-icon::before,
.page-faq .qa-q-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 3px;
  right: 3px;
  height: 1.5px;
  margin-top: -0.75px;
  background: var(--blue-800);
  transition: transform .25s var(--ease), background-color .25s var(--ease);
}

.page-faq .qa-q-icon::after {
  transform: rotate(90deg);
}

.page-faq .qa[open] .qa-q-icon {
  border-color: var(--cyan);
}

.page-faq .qa[open] .qa-q-icon::before,
.page-faq .qa[open] .qa-q-icon::after {
  background: var(--cyan);
}

.page-faq .qa[open] .qa-q-icon::after {
  transform: rotate(0deg);
}

.page-faq .qa-a {
  padding: 0 18px 18px;
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.78;
  color: var(--faq-ink-soft);
}

.page-faq .qa-a p {
  margin: 0 0 10px;
  max-width: 40em;
}

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

.page-faq .qa-a .qa-meta {
  margin-top: 14px;
  padding-top: 10px;
  border-top: 1px dashed rgba(10, 42, 92, .18);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: .03em;
  color: var(--faq-ink-mute);
}

.page-faq .qa[open] .qa-a {
  animation: faqReveal .3s var(--ease) both;
}

@keyframes faqReveal {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 配图 ---------- */
.page-faq .faq-aside {
  min-width: 0;
}

.page-faq .faq-figure {
  margin: 0;
  border: 1px solid var(--line);
  clip-path: polygon(var(--faq-cut) 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%, 0 var(--faq-cut));
  transition: border-color .25s var(--ease);
}

.page-faq .faq-figure:hover {
  border-color: var(--cyan);
}

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

.page-faq .faq-figure-cap {
  margin: 0;
  padding: 12px 16px;
  background: var(--blue-900);
  color: var(--haze);
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.8;
  letter-spacing: .03em;
}

/* ---------- 三档退换 ---------- */
.page-faq .tier-list {
  list-style: none;
  margin: 0 0 clamp(22px, 3vw, 34px);
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

@media (min-width: 780px) {
  .page-faq .tier-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .tier {
  padding: 20px 18px 22px;
  background: #ffffff;
  border: 1px solid var(--faq-hair);
  border-top: 4px solid var(--cyan);
  clip-path: polygon(var(--faq-cut) 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%, 0 var(--faq-cut));
}

.page-faq .tier--b {
  border-top-color: var(--orange);
}

.page-faq .tier--c {
  border-top-color: var(--gold);
}

.page-faq .tier-tag {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--faq-ink-mute);
}

.page-faq .tier-name {
  margin: 10px 0 8px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.3;
  color: var(--blue-800);
}

.page-faq .tier-window {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(22px, 2.6vw, 28px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--blue-800);
}

.page-faq .tier-window em {
  font-style: normal;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: .08em;
  color: var(--faq-ink-mute);
  margin-left: 4px;
}

.page-faq .tier p {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.74;
  color: var(--faq-ink-soft);
}

/* ---------- 三步流程带 ---------- */
.page-faq .flow {
  list-style: none;
  margin: 0 0 clamp(22px, 3vw, 32px);
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

@media (min-width: 780px) {
  .page-faq .flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .flow li {
  padding: 16px 18px 18px;
  background: linear-gradient(150deg, var(--blue-800) 0%, var(--blue-900) 100%);
  color: var(--mist);
  clip-path: polygon(var(--faq-cut) 0, 100% 0, 100% calc(100% - var(--faq-cut)), calc(100% - var(--faq-cut)) 100%, 0 100%, 0 var(--faq-cut));
}

.page-faq .flow-step {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  color: var(--cyan);
}

.page-faq .flow-text {
  display: block;
  font-size: 14px;
  line-height: 1.72;
}

/* ---------- 部署对照表 ---------- */
.page-faq .table-scroll {
  margin-bottom: clamp(22px, 3vw, 32px);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--faq-hair);
  border-top: 4px solid var(--cyan);
  background: #ffffff;
}

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

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

.page-faq .deploy-table caption {
  padding: 12px 14px 0;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--faq-ink-mute);
}

.page-faq .deploy-table th,
.page-faq .deploy-table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  line-height: 1.7;
  border-bottom: 1px solid rgba(10, 42, 92, .1);
}

.page-faq .deploy-table thead th {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .14em;
  color: var(--blue-800);
  background: rgba(10, 42, 92, .06);
  white-space: nowrap;
}

.page-faq .deploy-table tbody th {
  font-weight: 700;
  color: var(--blue-800);
  white-space: nowrap;
}

.page-faq .deploy-table tbody td {
  color: var(--faq-ink-soft);
}

.page-faq .deploy-table tbody tr:nth-child(even) {
  background: rgba(10, 42, 92, .035);
}

.page-faq .deploy-table tbody tr:last-child th,
.page-faq .deploy-table tbody tr:last-child td {
  border-bottom: 0;
}

/* ---------- 渠道标签 ---------- */
.page-faq .partner-chips {
  list-style: none;
  margin: 0 0 clamp(20px, 3vw, 28px);
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .partner-chips li {
  padding: 8px 14px;
  background: #ffffff;
  border: 1px solid rgba(10, 42, 92, .2);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--blue-800);
}

.page-faq .partner-chips li:nth-child(1) {
  border-color: var(--cyan);
}

.page-faq .partner-chips li:nth-child(2) {
  border-color: var(--orange);
}

.page-faq .partner-chips li:nth-child(3) {
  border-color: var(--gold);
}

/* ---------- 收束面板 ---------- */
.page-faq .faq-cta {
  position: relative;
  background: var(--blue-900);
  padding: clamp(40px, 6vw, 80px) 0;
  overflow: hidden;
}

.page-faq .faq-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(58% 120% at 10% 0%, rgba(0, 229, 255, .16), rgba(0, 229, 255, 0) 60%);
  pointer-events: none;
}

.page-faq .faq-cta-panel {
  position: relative;
  padding: clamp(26px, 4vw, 52px);
  background: linear-gradient(140deg, rgba(46, 26, 94, .92) 0%, rgba(10, 42, 92, .94) 100%);
  border: 1px solid var(--line);
  clip-path: polygon(18px 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%, 0 18px);
}

.page-faq .faq-cta-kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-cta-title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(23px, 3.6vw, 40px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: #ffffff;
  max-width: 20em;
}

.page-faq .faq-cta-lead {
  margin: 16px 0 0;
  max-width: 44em;
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.8;
  color: var(--haze);
}

.page-faq .faq-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 30px);
}

.page-faq .faq-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 24px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: .02em;
  text-decoration: none;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
  transition: transform .22s var(--ease), background-color .22s var(--ease), color .22s var(--ease), box-shadow .22s var(--ease);
}

.page-faq .faq-btn--primary {
  background: var(--cyan);
  color: var(--blue-900);
}

.page-faq .faq-btn--primary:hover {
  background: #ffffff;
  transform: translateY(-2px);
}

.page-faq .faq-btn--ghost {
  background: transparent;
  color: var(--mist);
  box-shadow: inset 0 0 0 1px var(--line);
}

.page-faq .faq-btn--ghost:hover {
  color: var(--cyan);
  box-shadow: inset 0 0 0 1px var(--cyan);
  transform: translateY(-2px);
}

.page-faq .faq-cta-meta {
  margin: clamp(20px, 3vw, 28px) 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.95;
  letter-spacing: .03em;
  color: var(--haze);
  overflow-wrap: anywhere;
}

.page-faq .faq-more {
  list-style: none;
  margin: 26px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--line-ghost);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
}

.page-faq .faq-more a {
  color: var(--mist);
  text-decoration: none;
  font-size: 14px;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--line);
  transition: color .22s var(--ease), border-color .22s var(--ease);
}

.page-faq .faq-more a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa[open] .qa-a {
    animation: none;
  }

  .page-faq .qa-q-icon::before,
  .page-faq .qa-q-icon::after,
  .page-faq .faq-btn,
  .page-faq .faq-figure {
    transition: none;
  }

  .page-faq .faq-btn:hover {
    transform: none;
  }
}