.page-faq {
  --faq-pad: clamp(32px, 5vw, 64px);
  --faq-amber-ink: #8A6321;
  background: var(--paper);
  color: var(--text);
}

/* ---------- 面包屑条 ---------- */
.page-faq .faq-crumbbar {
  background: var(--paper);
  border-bottom: 1px solid rgba(46, 70, 97, .18);
  padding: 12px 0;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  background: var(--ink);
  background-image: linear-gradient(180deg, rgba(20, 40, 61, .82), rgba(14, 27, 42, 0) 72%);
  color: var(--paper);
  border-bottom: 3px solid var(--amber);
  padding: var(--faq-pad) 0 calc(var(--faq-pad) + 6px);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  font-size: clamp(28px, 4.4vw, 50px);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -.012em;
  max-width: 22ch;
}

.page-faq .faq-hero__lede {
  margin: 18px 0 0;
  max-width: 56ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: rgba(244, 241, 233, .76);
}

.page-faq .faq-hero__actions {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-flow {
  border: 1px solid rgba(46, 70, 97, .85);
  background: rgba(10, 21, 33, .5);
  padding: 20px 20px 8px;
}

.page-faq .faq-flow__title {
  margin: 0 0 16px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--amber);
}

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

.page-faq .faq-flow li {
  position: relative;
  margin-left: 4px;
  padding: 0 0 20px 22px;
  border-left: 1px solid var(--line);
}

.page-faq .faq-flow li::before {
  content: "";
  position: absolute;
  left: -4.5px;
  top: 5px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber);
}

.page-faq .faq-flow li:last-child {
  border-left-color: transparent;
  padding-bottom: 2px;
}

.page-faq .faq-flow__num {
  display: block;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--amber-soft);
  margin-bottom: 4px;
}

.page-faq .faq-flow__text {
  display: block;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

.page-faq .faq-flow__desc {
  display: block;
  margin-top: 5px;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(244, 241, 233, .6);
}

/* ---------- 通用图框 ---------- */
.page-faq .faq-figure {
  margin: 0;
  border: 1px solid var(--line-soft);
  background: var(--mist);
  padding: 10px;
  box-shadow: var(--shadow-paper);
}

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

.page-faq .faq-figure figcaption {
  margin: 10px 4px 2px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 主流程横幅 ---------- */
.page-faq .faq-guide {
  background: var(--paper);
  padding: clamp(26px, 4vw, 48px) 0;
}

.page-faq .faq-figure--banner {
  max-width: 1000px;
  margin: 0 auto;
}

/* ---------- 排查工作区 ---------- */
.page-faq .faq-work {
  background: var(--mist);
  border-top: 1px solid rgba(46, 70, 97, .2);
  border-bottom: 1px solid rgba(46, 70, 97, .2);
  padding: var(--faq-pad) 0;
}

.page-faq .faq-work__grid {
  display: grid;
  gap: clamp(22px, 3vw, 34px);
}

.page-faq .faq-card {
  background: var(--paper);
  border: 1px solid var(--line-soft);
  box-shadow: 0 6px 14px rgba(16, 24, 32, .05);
  padding: 18px 18px 20px;
  margin-bottom: 18px;
}

.page-faq .faq-card:last-child {
  margin-bottom: 0;
}

.page-faq .faq-card__head {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--faq-amber-ink);
}

.page-faq .faq-card__title {
  margin: 0 0 14px;
  font-size: 17px;
  line-height: 1.5;
  font-weight: 800;
  color: var(--ink);
}

.page-faq .faq-card__dl {
  margin: 0;
}

.page-faq .faq-card__dl > div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  padding: 9px 0;
  border-top: 1px solid rgba(46, 70, 97, .16);
  font-size: 13px;
  line-height: 1.6;
}

.page-faq .faq-card__dl dt {
  color: var(--slate);
  flex: 0 0 auto;
}

.page-faq .faq-card__dl dd {
  margin: 0;
  color: var(--ink);
  font-weight: 600;
  text-align: right;
  word-break: break-word;
}

.page-faq .faq-state-row {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px;
  justify-content: flex-end;
}

.page-faq .faq-state {
  display: inline-block;
  padding: 2px 7px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .06em;
  border: 1px solid;
}

.page-faq .faq-state--live {
  color: #4E6B45;
  border-color: rgba(126, 144, 120, .8);
  background: rgba(126, 144, 120, .16);
}

.page-faq .faq-state--maint {
  color: #8A6321;
  border-color: rgba(201, 147, 58, .65);
  background: rgba(201, 147, 58, .13);
}

.page-faq .faq-state--arch {
  color: #5A6875;
  border-color: rgba(107, 122, 138, .5);
  background: rgba(107, 122, 138, .12);
}

.page-faq .faq-card__note {
  margin: 14px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--slate);
}

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

.page-faq .faq-quick li {
  display: grid;
  gap: 3px;
  padding: 10px 0;
  border-top: 1px solid rgba(46, 70, 97, .16);
}

.page-faq .faq-quick__sym {
  font-size: 13px;
  line-height: 1.6;
  font-weight: 600;
  color: var(--ink);
}

.page-faq .faq-quick__to {
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--faq-amber-ink);
}

/* ---------- 标签页 ---------- */
.page-faq .qa-section-title {
  margin: 0 0 16px;
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 800;
  line-height: 1.4;
  color: var(--ink);
}

.page-faq .qa-board {
  position: relative;
}

.page-faq .qa-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  overflow: hidden;
  white-space: nowrap;
}

.page-faq .qa-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.page-faq .qa-tab {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 13px;
  border: 1px solid rgba(46, 70, 97, .3);
  background: rgba(244, 241, 233, .75);
  color: var(--ink);
  font-size: 13px;
  line-height: 1.4;
  font-weight: 600;
  cursor: pointer;
  transition: background-color .18s ease, color .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.page-faq .qa-tab:hover {
  border-color: rgba(201, 147, 58, .8);
}

.page-faq .qa-tab__num {
  font-size: 11px;
  letter-spacing: .08em;
  opacity: .62;
}

.page-faq #qa-cat-login:checked ~ .qa-tabs .qa-tab:nth-child(1),
.page-faq #qa-cat-fee:checked ~ .qa-tabs .qa-tab:nth-child(2),
.page-faq #qa-cat-cycle:checked ~ .qa-tabs .qa-tab:nth-child(3),
.page-faq #qa-cat-rate:checked ~ .qa-tabs .qa-tab:nth-child(4),
.page-faq #qa-cat-file:checked ~ .qa-tabs .qa-tab:nth-child(5) {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
  box-shadow: inset 3px 0 0 0 var(--amber);
}

.page-faq #qa-cat-login:focus-visible ~ .qa-tabs .qa-tab:nth-child(1),
.page-faq #qa-cat-fee:focus-visible ~ .qa-tabs .qa-tab:nth-child(2),
.page-faq #qa-cat-cycle:focus-visible ~ .qa-tabs .qa-tab:nth-child(3),
.page-faq #qa-cat-rate:focus-visible ~ .qa-tabs .qa-tab:nth-child(4),
.page-faq #qa-cat-file:focus-visible ~ .qa-tabs .qa-tab:nth-child(5) {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

/* ---------- 答案面板 ---------- */
.page-faq .qa-pane {
  display: none;
}

.page-faq #qa-cat-login:checked ~ .qa-panes .qa-pane--login,
.page-faq #qa-cat-fee:checked ~ .qa-panes .qa-pane--fee,
.page-faq #qa-cat-cycle:checked ~ .qa-panes .qa-pane--cycle,
.page-faq #qa-cat-rate:checked ~ .qa-panes .qa-pane--rate,
.page-faq #qa-cat-file:checked ~ .qa-panes .qa-pane--file {
  display: block;
  animation: faq-pane-in .24s ease both;
}

@keyframes faq-pane-in {
  from {
    opacity: 0;
    transform: translateY(5px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.page-faq .qa-pane__head {
  margin: 0 0 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(46, 70, 97, .22);
}

.page-faq .qa-pane__head h3 {
  margin: 0 0 6px;
  font-size: clamp(19px, 2.2vw, 23px);
  font-weight: 800;
  line-height: 1.4;
  color: var(--ink);
}

.page-faq .qa-pane__head p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--slate);
}

.page-faq .qa-item {
  background: var(--paper);
  border: 1px solid rgba(46, 70, 97, .24);
  margin-bottom: 10px;
  transition: border-color .18s ease, box-shadow .18s ease, background-color .18s ease;
}

.page-faq .qa-item[open] {
  border-color: rgba(201, 147, 58, .65);
  box-shadow: inset 3px 0 0 0 var(--amber);
  background: #FBFAF6;
}

.page-faq .qa-item summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 15px 44px 15px 18px;
  font-size: 15.5px;
  line-height: 1.6;
  font-weight: 700;
  color: var(--ink);
}

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

.page-faq .qa-item summary::marker {
  content: "";
}

.page-faq .qa-item summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--faq-amber-ink);
  transition: color .18s ease;
}

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

.page-faq .qa-item summary:hover {
  color: var(--ink-deep);
}

.page-faq .qa-body {
  margin: 0;
  padding: 14px 18px 18px;
  border-top: 1px solid rgba(46, 70, 97, .16);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--text);
}

.page-faq .qa-body ol,
.page-faq .qa-body ul {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: qastep;
}

.page-faq .qa-body li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 9px;
}

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

.page-faq .qa-body ol > li::before {
  counter-increment: qastep;
  content: counter(qastep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .04em;
  color: var(--faq-amber-ink);
}

.page-faq .qa-body ul > li::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 12px;
  width: 7px;
  height: 1px;
  background: var(--amber);
}

/* ---------- 费用两条线 ---------- */
.page-faq .faq-split {
  background: var(--ink);
  color: var(--paper);
  padding: var(--faq-pad) 0;
}

.page-faq .faq-split__grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
}

.page-faq .faq-split h2 {
  margin: 12px 0 16px;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.32;
  font-weight: 800;
  color: var(--paper);
  max-width: 20ch;
}

.page-faq .faq-split__copy > p {
  margin: 0 0 20px;
  max-width: 54ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(244, 241, 233, .76);
}

.page-faq .faq-pairs {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  border-top: 1px solid rgba(46, 70, 97, .9);
}

.page-faq .faq-pairs li {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(46, 70, 97, .6);
  font-size: 13.5px;
  line-height: 1.75;
}

.page-faq .faq-pairs__key {
  flex: 0 0 auto;
  padding-top: 3px;
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--amber);
}

.page-faq .faq-pairs__val {
  flex: 1 1 180px;
  color: rgba(244, 241, 233, .82);
}

.page-faq .faq-link {
  display: inline-block;
  padding-bottom: 3px;
  border-bottom: 1px solid currentColor;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--amber);
  text-decoration: none;
  transition: color .18s ease;
}

.page-faq .faq-link:hover {
  color: var(--amber-soft);
}

.page-faq .faq-split .faq-figure {
  border-color: rgba(46, 70, 97, .9);
  background: rgba(10, 21, 33, .6);
  box-shadow: none;
}

.page-faq .faq-split .faq-figure figcaption {
  color: rgba(244, 241, 233, .62);
}

/* ---------- 联系协助 ---------- */
.page-faq .faq-help {
  background: var(--paper);
  padding: var(--faq-pad) 0;
}

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

.page-faq .faq-help h2 {
  margin: 12px 0 18px;
  font-size: clamp(22px, 2.8vw, 30px);
  line-height: 1.34;
  font-weight: 800;
  color: var(--ink);
  max-width: 22ch;
}

.page-faq .faq-help__steps {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  border-top: 1px solid rgba(46, 70, 97, .22);
}

.page-faq .faq-help__steps li {
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid rgba(46, 70, 97, .16);
  font-size: 14px;
  line-height: 1.75;
  color: var(--text);
}

.page-faq .faq-help__steps .mono {
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--faq-amber-ink);
}

.page-faq .faq-help__meta {
  margin: 0 0 12px;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .faq-help__legal {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.8;
  color: var(--slate);
}

.page-faq .faq-help__legal a {
  color: var(--faq-amber-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-help__card {
  background: var(--ink);
  color: var(--paper);
  border-top: 3px solid var(--amber);
  padding: 22px 22px 24px;
}

.page-faq .faq-help__cardhead {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--amber);
}

.page-faq .faq-help__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin: 0;
  padding: 10px 0;
  border-top: 1px solid rgba(46, 70, 97, .9);
  font-size: 13px;
  line-height: 1.6;
}

.page-faq .faq-help__row span {
  flex: 0 0 auto;
  color: rgba(244, 241, 233, .6);
}

.page-faq .faq-help__row strong {
  font-weight: 600;
  color: var(--paper);
  text-align: right;
  word-break: break-all;
}

.page-faq .faq-help__card .btn {
  display: block;
  margin-top: 20px;
  width: 100%;
  text-align: center;
}

/* ---------- 中等屏以上 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
    align-items: start;
  }

  .page-faq .faq-split__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .92fr);
    align-items: center;
  }

  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-work__grid {
    grid-template-columns: 296px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 88px;
  }
}

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq #qa-cat-login:checked ~ .qa-panes .qa-pane--login,
  .page-faq #qa-cat-fee:checked ~ .qa-panes .qa-pane--fee,
  .page-faq #qa-cat-cycle:checked ~ .qa-panes .qa-pane--cycle,
  .page-faq #qa-cat-rate:checked ~ .qa-panes .qa-pane--rate,
  .page-faq #qa-cat-file:checked ~ .qa-panes .qa-pane--file {
    animation: none;
  }

  .page-faq .qa-tab,
  .page-faq .qa-item,
  .page-faq .qa-item summary::after,
  .page-faq .faq-link {
    transition: none;
  }
}
<<<END>>>