.page-faq {
  --faq-rule: var(--c-line);
  --faq-dot: 14px;
  background: var(--c-paper);
  color: var(--c-ink);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 24px 0 128px;
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(124, 107, 242, .22), transparent 60%),
    radial-gradient(90% 80% at 4% 100%, rgba(52, 209, 191, .16), transparent 62%),
    var(--c-indigo);
  color: var(--c-paper);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 5px;
  height: 100%;
  background: linear-gradient(180deg, var(--c-amber), var(--c-cyan));
  opacity: .85;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: min(46vw, 540px);
  height: 92px;
  background: var(--c-paper);
  clip-path: polygon(100% 0, 100% 100%, 0 100%);
}

.page-faq .faq-hero .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 34px;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
}

.page-faq .faq-hero .breadcrumb__item {
  color: var(--c-silver);
}

.page-faq .faq-hero .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 10px;
  color: var(--c-line);
}

.page-faq .faq-hero .breadcrumb__item a {
  color: var(--c-silver);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-faq .faq-hero .breadcrumb__item a:hover {
  color: var(--c-amber);
  border-color: var(--c-amber);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
}

.page-faq .faq-hero__eyebrow {
  color: var(--c-cyan);
  margin: 0 0 18px;
}

.page-faq .faq-hero h1 {
  margin: 0;
  font-size: clamp(30px, 8vw, 62px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -.02em;
  color: var(--c-paper);
  max-width: 15ch;
}

.page-faq .faq-hero__intro {
  margin: 22px 0 0;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.9;
  color: var(--c-silver);
}

.page-faq .faq-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.page-faq .hero-stat {
  padding-top: 12px;
  border-top: 1px solid var(--c-line);
}

.page-faq .hero-stat__num {
  display: block;
  font-size: clamp(24px, 6vw, 38px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--c-amber);
}

.page-faq .hero-stat__label {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--c-silver);
}

.page-faq .faq-jump {
  display: flex;
  gap: 8px;
  margin-top: 38px;
  padding-bottom: 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-jump__link {
  flex: 0 0 auto;
  padding: 8px 15px;
  border: 1px solid var(--c-line);
  border-radius: 999px;
  font-size: 13px;
  line-height: 1;
  color: var(--c-silver);
  text-decoration: none;
  white-space: nowrap;
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-faq .faq-jump__link:hover,
.page-faq .faq-jump__link:focus-visible {
  background: var(--c-amber);
  border-color: var(--c-amber);
  color: var(--c-indigo);
}

/* ---------- 区块通用 ---------- */
.page-faq .faq-section {
  padding: clamp(54px, 9vw, 96px) 0;
  background: var(--c-paper);
}

.page-faq .faq-section--dark {
  background: var(--c-indigo-deep);
  color: var(--c-paper);
}

.page-faq .faq-section--soft {
  background: var(--c-lime);
}

.page-faq .faq-section--dark .section-head__title {
  color: var(--c-paper);
}

.page-faq .faq-section--dark .section-head__note {
  color: var(--c-silver);
}

.page-faq .faq-section--dark .section-head__idx {
  color: var(--c-amber);
}

.page-faq .faq-tail {
  margin: 34px 0 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.9;
  color: var(--c-muted);
}

.page-faq .faq-section--dark .faq-tail {
  color: var(--c-silver);
}

.page-faq .faq-inline-link {
  color: var(--c-amber-deep);
  text-decoration: none;
  border-bottom: 1px solid var(--c-amber-deep);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-faq .faq-inline-link:hover {
  color: var(--c-amber);
  border-color: var(--c-amber);
}

.page-faq .faq-section--dark .faq-inline-link {
  color: var(--c-amber);
  border-color: var(--c-amber);
}

.page-faq .faq-section--dark .faq-inline-link:hover {
  color: var(--c-cyan);
  border-color: var(--c-cyan);
}

/* ---------- 年度周期图 ---------- */
.page-faq .cycle-figure {
  margin: 0 0 46px;
}

.page-faq .cycle-figure__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--c-line);
  background: var(--c-indigo);
}

.page-faq .cycle-figure__cap {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--c-muted);
}

.page-faq .cycle-gantt__scale {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .04em;
  color: var(--c-muted);
  text-align: center;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--c-lime);
}

.page-faq .cycle-gantt__scale span:nth-child(3n) {
  color: var(--c-ink);
  font-weight: 700;
}

.page-faq .cycle-track {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 26px;
}

.page-faq .cycle-node {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "dot month"
    "pop pop";
  align-items: center;
  gap: 6px 12px;
  padding-left: 2px;
  outline: none;
}

.page-faq .cycle-node__dot {
  grid-area: dot;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--c-amber);
  box-shadow: 0 0 0 4px rgba(242, 160, 60, .16);
}

.page-faq .cycle-node--alert .cycle-node__dot {
  background: var(--c-terra);
  box-shadow: 0 0 0 4px rgba(210, 84, 62, .18);
}

.page-faq .cycle-node__month {
  grid-area: month;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--c-amber-deep);
}

.page-faq .cycle-node--alert .cycle-node__month {
  color: var(--c-terra);
}

.page-faq .cycle-node__name {
  grid-area: month;
  justify-self: end;
  font-size: 14px;
  font-weight: 700;
  color: var(--c-ink);
}

.page-faq .cycle-node__pop {
  grid-area: pop;
  padding: 12px 14px;
  border-left: 1px solid var(--c-line);
}

.page-faq .cycle-node__pop-title {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--c-muted);
}

.page-faq .cycle-node__list {
  margin: 0;
  padding-left: 16px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--c-muted);
}

/* ---------- 问答手风琴 ---------- */
.page-faq .qa-list {
  border-top: 1px solid var(--c-lime);
}

.page-faq .qa-section-dark .qa-list,
.page-faq .faq-section--dark .qa-list {
  border-top-color: var(--c-line);
}

.page-faq .qa {
  border-bottom: 1px solid var(--c-lime);
}

.page-faq .faq-section--dark .qa {
  border-bottom-color: var(--c-line);
}

.page-faq .qa__q {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 20px 0;
  cursor: pointer;
  list-style: none;
  font-size: clamp(16px, 4vw, 18px);
  font-weight: 700;
  line-height: 1.6;
  color: var(--c-ink);
  transition: color var(--t-fast) var(--ease);
}

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

.page-faq .faq-section--dark .qa__q {
  color: var(--c-paper);
}

.page-faq .qa__q:hover,
.page-faq .qa[open] .qa__q {
  color: var(--c-amber-deep);
}

.page-faq .faq-section--dark .qa__q:hover,
.page-faq .faq-section--dark .qa[open] .qa__q {
  color: var(--c-amber);
}

.page-faq .qa__idx {
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-amber-deep);
}

.page-faq .faq-section--dark .qa__idx {
  color: var(--c-cyan);
}

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

.page-faq .qa__q::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--c-amber-deep);
  transition: transform var(--t-base) var(--ease);
}

.page-faq .faq-section--dark .qa__q::after {
  color: var(--c-amber);
}

.page-faq .qa[open] .qa__q::after {
  content: "−";
}

.page-faq .qa__a {
  margin: 0 0 24px 30px;
  padding: 2px 0 2px 20px;
  border-left: 1px solid var(--c-amber);
}

.page-faq .qa__a p {
  margin: 0;
  max-width: 38em;
  font-size: 15px;
  line-height: 1.95;
  color: var(--c-muted);
}

.page-faq .faq-section--dark .qa__a {
  border-left-color: var(--c-cyan);
}

.page-faq .faq-section--dark .qa__a p {
  color: var(--c-silver);
}

/* ---------- 时效色带 ---------- */
.page-faq .sla-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 30px;
}

.page-faq .sla-item__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 12px;
}

.page-faq .sla-item__val {
  font-size: clamp(22px, 6vw, 30px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--c-ink);
}

.page-faq .sla-item__name {
  font-size: 14px;
  font-weight: 700;
  color: var(--c-muted);
}

.page-faq .sla-item__bar {
  position: relative;
  height: 12px;
  background: var(--c-lime);
  border: 1px solid var(--c-line);
}

.page-faq .sla-item__fill {
  display: block;
  height: 100%;
  transition: filter var(--t-fast) var(--ease);
}

.page-faq .sla-item--response .sla-item__fill {
  width: 6%;
  min-width: 22px;
  background: var(--c-cyan);
}

.page-faq .sla-item--local .sla-item__fill {
  width: 50%;
  background: var(--c-amber);
}

.page-faq .sla-item--remote .sla-item__fill {
  width: 100%;
  background: var(--c-violet);
}

.page-faq .sla-item:hover .sla-item__fill {
  filter: brightness(1.1);
}

.page-faq .sla-item__desc {
  margin: 14px 0 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.9;
  color: var(--c-muted);
}

/* ---------- 咨询前准备 ---------- */
.page-faq .prepare-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
}

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

.page-faq .prepare-item {
  display: flex;
  gap: 16px;
  padding: 18px 0;
  border-top: 1px solid var(--c-line);
}

.page-faq .prepare-item:last-child {
  border-bottom: 1px solid var(--c-line);
}

.page-faq .prepare-item__num {
  flex: 0 0 auto;
  padding-top: 3px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-amber);
}

.page-faq .prepare-item__title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  color: var(--c-paper);
}

.page-faq .prepare-item__desc {
  margin: 0;
  max-width: 36em;
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-silver);
}

.page-faq .prepare-aside {
  padding: 22px;
  border: 1px solid var(--c-line);
  background: var(--c-indigo-mid);
}

.page-faq .prepare-aside__kicker {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--c-cyan);
}

.page-faq .prepare-aside__line {
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-paper);
}

.page-faq .prepare-aside__note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--c-line);
  font-size: 13px;
  line-height: 1.85;
  color: var(--c-silver);
}

/* ---------- 工单流程 ---------- */
.page-faq .ticket-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

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

.page-faq .ticket-step {
  position: relative;
  padding: 20px 0 20px 26px;
  border-left: 1px solid var(--c-line);
}

.page-faq .ticket-step__num {
  display: block;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--c-amber-deep);
}

.page-faq .ticket-step__title {
  margin: 6px 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--c-ink);
}

.page-faq .ticket-step__desc {
  margin: 0;
  max-width: 34em;
  font-size: 14px;
  line-height: 1.85;
  color: var(--c-muted);
}

.page-faq .ticket-figure {
  margin: 0;
}

.page-faq .ticket-figure__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--c-line);
  background: var(--c-indigo);
}

.page-faq .ticket-figure__cap {
  margin-top: 12px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--c-muted);
}

/* ---------- 桌面增强 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero {
    padding: 34px 0 152px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 56px;
    align-items: end;
  }

  .page-faq .faq-hero__stats {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-faq .faq-hero__intro {
    font-size: 17px;
  }

  .page-faq .cycle-gantt__scale {
    font-size: 11px;
  }

  .page-faq .cycle-track {
    position: relative;
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 0;
    margin-top: 16px;
    padding-top: 8px;
  }

  .page-faq .cycle-track::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 15px;
    height: 1px;
    background: var(--c-line);
  }

  .page-faq .cycle-node {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 0 6px;
    border-radius: 2px;
  }

  .page-faq .cycle-node:nth-child(1) {
    grid-column: 3 / span 1;
  }

  .page-faq .cycle-node:nth-child(2) {
    grid-column: 6 / span 1;
  }

  .page-faq .cycle-node:nth-child(3) {
    grid-column: 9 / span 1;
  }

  .page-faq .cycle-node:nth-child(4) {
    grid-column: 12 / span 1;
  }

  .page-faq .cycle-node__dot {
    position: relative;
    z-index: 1;
    width: var(--faq-dot);
    height: var(--faq-dot);
    box-shadow: 0 0 0 5px var(--c-paper), 0 0 0 6px var(--c-line);
  }

  .page-faq .cycle-node__month {
    font-size: 11px;
  }

  .page-faq .cycle-node__name {
    justify-self: auto;
    font-size: 15px;
  }

  .page-faq .cycle-node__pop {
    position: absolute;
    bottom: calc(100% + 14px);
    left: 50%;
    transform: translateX(-50%);
    z-index: 4;
    width: 208px;
    padding: 14px 16px;
    border: 1px solid var(--c-amber);
    border-left-width: 3px;
    background: var(--c-indigo-deep);
    box-shadow: var(--shadow-soft);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--t-base) var(--ease), visibility var(--t-base) var(--ease);
  }

  .page-faq .cycle-node:nth-child(1) .cycle-node__pop {
    left: 0;
    transform: none;
  }

  .page-faq .cycle-node:nth-child(4) .cycle-node__pop {
    left: auto;
    right: 0;
    transform: none;
  }

  .page-faq .cycle-node__pop-title {
    color: var(--c-cyan);
  }

  .page-faq .cycle-node__list {
    color: var(--c-silver);
    font-size: 12.5px;
  }

  .page-faq .cycle-node:hover .cycle-node__pop,
  .page-faq .cycle-node:focus .cycle-node__pop,
  .page-faq .cycle-node:focus-within .cycle-node__pop {
    opacity: 1;
    visibility: visible;
  }

  .page-faq .cycle-node:hover .cycle-node__name,
  .page-faq .cycle-node:focus .cycle-node__name {
    color: var(--c-amber-deep);
  }

  .page-faq .sla-list {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .page-faq .prepare-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .ticket-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .ticket-flow {
    position: relative;
  }

  .page-faq .ticket-step {
    padding: 22px 0 22px 30px;
  }

  .page-faq .ticket-step::after {
    content: "↓";
    position: absolute;
    left: -8px;
    bottom: -10px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--c-amber);
    background: var(--c-paper);
    padding: 0 4px;
  }

  .page-faq .ticket-step:last-child::after {
    display: none;
  }

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

@media (max-width: 520px) {
  .page-faq .qa__a {
    margin-left: 0;
    padding-left: 14px;
  }

  .page-faq .cycle-node__name {
    font-size: 13px;
  }
}