.page-faq {
  --faq-ink: #E8EEF5;
  --faq-ink-soft: #A9BDCD;
  --faq-line: rgba(143, 166, 184, 0.22);
  --faq-rail-w: 244px;
  background: var(--abg-navy);
  color: var(--faq-ink);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

.page-faq .mono {
  font-family: var(--font-mono);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: clamp(20px, 4vw, 40px) 0 clamp(30px, 5vw, 64px);
  background:
    radial-gradient(circle at 16% 8%, rgba(45, 226, 255, 0.16), transparent 54%),
    radial-gradient(circle at 92% 0%, rgba(255, 139, 61, 0.13), transparent 48%),
    linear-gradient(180deg, var(--abg-navy) 0%, var(--abg-navy) 70%, #0A2039 100%);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(143, 166, 184, 0.07) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, rgba(143, 166, 184, 0.05) 0 1px, transparent 1px 72px);
  pointer-events: none;
}

.page-faq .faq-hero .shell {
  position: relative;
  z-index: 1;
}

.page-faq .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0 0 clamp(18px, 3vw, 32px);
  padding: 0;
  font-size: 13px;
  color: var(--abg-mist);
}

.page-faq .breadcrumb__item + .breadcrumb__item::before,
.page-faq .breadcrumb__item + .breadcrumb__current::before {
  content: "/";
  margin-right: 8px;
  color: rgba(143, 166, 184, 0.5);
}

.page-faq .breadcrumb__link {
  color: var(--abg-mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .breadcrumb__link:hover,
.page-faq .breadcrumb__link:focus-visible {
  color: var(--abg-cyan);
  border-bottom-color: var(--abg-cyan);
}

.page-faq .breadcrumb__current {
  color: var(--faq-ink);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}

.page-faq .eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--abg-cyan);
}

.page-faq .faq-hero__title {
  margin: 0 0 16px;
  font-size: clamp(30px, 5.4vw, 56px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: #fff;
  max-width: 15em;
}

.page-faq .faq-hero__lede {
  margin: 0 0 24px;
  max-width: 34em;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

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

.page-faq .faq-hero__actions .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  border-radius: 0;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-hero__actions .btn--primary {
  background: var(--abg-orange);
  color: #1B1411;
  border: 1px solid var(--abg-orange);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}

.page-faq .faq-hero__actions .btn--primary:hover,
.page-faq .faq-hero__actions .btn--primary:focus-visible {
  background: #FFA05F;
}

.page-faq .faq-hero__actions .btn--ghost {
  background: transparent;
  color: var(--faq-ink);
  border: 1px solid rgba(45, 226, 255, 0.45);
}

.page-faq .faq-hero__actions .btn--ghost:hover,
.page-faq .faq-hero__actions .btn--ghost:focus-visible {
  border-color: var(--abg-cyan);
  background: rgba(45, 226, 255, 0.1);
  color: #fff;
}

/* 首屏状态面板 */

.page-faq .faq-status {
  position: relative;
  padding: 20px;
  background: rgba(18, 52, 90, 0.76);
  border: 1px solid rgba(45, 226, 255, 0.3);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 22px 100%, 0 calc(100% - 22px));
}

.page-faq .faq-status__head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 14px;
  margin-bottom: 4px;
  border-bottom: 1px dashed rgba(143, 166, 184, 0.28);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--abg-cyan);
}

.page-faq .faq-status__list {
  margin: 0;
  padding: 0;
}

.page-faq .faq-status__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 11px 0;
  border-bottom: 1px solid rgba(143, 166, 184, 0.14);
  font-size: 14px;
}

.page-faq .faq-status__row:last-child {
  border-bottom: 0;
}

.page-faq .faq-status__row dt {
  color: var(--abg-mist);
  font-size: 13px;
}

.page-faq .faq-status__row dd {
  margin: 0;
  color: #fff;
  font-weight: 500;
  text-align: right;
}

.page-faq .faq-status__note {
  margin: 12px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--abg-mist);
}

/* ---------- 双栏主体 ---------- */

.page-faq .faq-body {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  padding-top: clamp(22px, 3.4vw, 44px);
  padding-bottom: clamp(48px, 7vw, 96px);
  background: linear-gradient(180deg, #0A2039 0%, var(--abg-navy) 220px);
}

/* 侧栏锚点 */

.page-faq .faq-rail {
  border-top: 1px solid var(--faq-line);
  border-bottom: 1px solid var(--faq-line);
  padding: 12px 0;
}

.page-faq .anchor-nav__title {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--abg-mist);
  text-transform: uppercase;
}

.page-faq .anchor-nav__list {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  scrollbar-width: thin;
}

.page-faq .anchor-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  padding: 9px 14px;
  font-size: 13.5px;
  white-space: nowrap;
  color: var(--faq-ink-soft);
  text-decoration: none;
  border: 1px solid var(--faq-line);
  background: rgba(18, 52, 90, 0.5);
  clip-path: polygon(9px 0, 100% 0, 100% calc(100% - 9px), calc(100% - 9px) 100%, 0 100%, 0 9px);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .anchor-nav__link .mono {
  font-size: 11.5px;
  color: var(--abg-orange);
}

.page-faq .anchor-nav__link:hover,
.page-faq .anchor-nav__link:focus-visible {
  color: #fff;
  border-color: var(--abg-cyan);
  background: rgba(45, 226, 255, 0.1);
}

/* 章节 */

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

.page-faq .faq-sec {
  scroll-margin-top: 96px;
  padding: clamp(22px, 3vw, 34px) 0;
  border-top: 1px solid var(--faq-line);
}

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

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

.page-faq .chapter-num {
  flex: 0 0 auto;
  font-size: clamp(20px, 2.6vw, 28px);
  line-height: 1;
  color: var(--abg-orange);
  letter-spacing: -0.02em;
}

.page-faq .faq-sec__title {
  margin: 0;
  font-size: clamp(20px, 2.8vw, 28px);
  line-height: 1.35;
  letter-spacing: -0.01em;
  font-weight: 900;
  color: #fff;
}

.page-faq .faq-sec__intro {
  margin: 0 0 22px;
  max-width: 46em;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--faq-ink-soft);
}

.page-faq .faq-sec__foot {
  margin: 18px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .faq-sec__intro a,
.page-faq .faq-sec__foot a,
.page-faq .faq-steps__body a {
  color: var(--abg-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(45, 226, 255, 0.4);
}

.page-faq .faq-sec__intro a:hover,
.page-faq .faq-sec__foot a:hover,
.page-faq .faq-steps__body a:hover,
.page-faq .faq-sec__intro a:focus-visible,
.page-faq .faq-sec__foot a:focus-visible,
.page-faq .faq-steps__body a:focus-visible {
  color: #fff;
  border-bottom-color: #fff;
}

/* 编号步骤 */

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

.page-faq .faq-steps__item {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 22px;
}

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

.page-faq .faq-steps__item:not(:last-child)::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 36px;
  bottom: 4px;
  width: 1px;
  background: linear-gradient(180deg, rgba(45, 226, 255, 0.55), rgba(45, 226, 255, 0.05));
}

.page-faq .faq-steps__num {
  display: grid;
  place-items: center;
  justify-self: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(45, 226, 255, 0.5);
  border-radius: 50%;
  background: #0A2039;
  color: var(--abg-cyan);
  font-size: 12.5px;
}

.page-faq .faq-steps--flow .faq-steps__num {
  border-color: rgba(45, 226, 255, 0.75);
  box-shadow: 0 0 0 4px rgba(45, 226, 255, 0.07);
}

.page-faq .faq-steps__title {
  margin: 6px 0 6px;
  font-size: 16.5px;
  font-weight: 700;
  color: #fff;
  line-height: 1.4;
}

.page-faq .faq-steps__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

/* 图 */

.page-faq .media-frame {
  margin: 24px 0 0;
}

.page-faq .media-frame__inner {
  overflow: hidden;
  background: var(--abg-graphite);
  border: 1px solid rgba(143, 166, 184, 0.2);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

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

.page-faq .media-frame__caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--abg-mist);
  font-family: var(--font-mono);
}

/* 版本区间标签 */

.page-faq .faq-vers {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
}

.page-faq .faq-vers__item {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 15px;
  background: rgba(18, 52, 90, 0.85);
  border: 1px solid var(--faq-line);
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
}

.page-faq .faq-vers__item:nth-child(1),
.page-faq .faq-vers__item:nth-last-child(1) {
  border-color: rgba(255, 139, 61, 0.5);
  background: rgba(255, 139, 61, 0.1);
}

.page-faq .faq-vers__tag {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--abg-cyan);
}

.page-faq .faq-vers__item:nth-child(1) .faq-vers__tag,
.page-faq .faq-vers__item:nth-last-child(1) .faq-vers__tag {
  color: var(--abg-orange);
}

.page-faq .faq-vers__meta {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--abg-mist);
}

/* 提示列表 */

.page-faq .faq-tips {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-tips li {
  position: relative;
  padding: 12px 16px 12px 34px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
  background: rgba(36, 42, 50, 0.55);
  border-left: 2px solid var(--abg-cyan);
}

.page-faq .faq-tips li::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 21px;
  width: 6px;
  height: 6px;
  background: var(--abg-cyan);
  transform: rotate(45deg);
}

.page-faq .faq-tips strong {
  color: #fff;
}

/* 更新节奏 */

.page-faq .faq-cadence {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: rgba(143, 166, 184, 0.16);
  border: 1px solid rgba(143, 166, 184, 0.16);
}

.page-faq .faq-cadence li {
  display: grid;
  gap: 6px;
  padding: 15px 16px;
  background: rgba(18, 52, 90, 0.6);
}

.page-faq .faq-cadence__key {
  font-size: 13px;
  color: var(--abg-orange);
  letter-spacing: 0.04em;
}

.page-faq .faq-cadence__val {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--faq-ink-soft);
}

/* 折叠问答 */

.page-faq .faq-acc {
  display: grid;
  gap: 10px;
}

.page-faq .faq-acc__item {
  background: rgba(18, 52, 90, 0.62);
  border: 1px solid var(--faq-line);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .faq-acc__item[open] {
  border-color: rgba(45, 226, 255, 0.42);
  background: rgba(18, 52, 90, 0.85);
}

.page-faq .faq-acc__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.5;
  color: #fff;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-acc__q::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--abg-cyan);
}

.page-faq .faq-acc__item[open] .faq-acc__q::after {
  content: "−";
  color: var(--abg-orange);
}

.page-faq .faq-acc__q:hover {
  color: var(--abg-cyan);
}

.page-faq .faq-acc__a {
  padding: 0 18px 18px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--faq-ink-soft);
}

.page-faq .faq-acc__a p {
  margin: 0 0 10px;
}

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

.page-faq .faq-acc__a ol {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 6px;
}

/* 筛选 */

.page-faq .faq-filter {
  margin-top: 4px;
}

.page-faq .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.page-faq .filter-btn {
  padding: 8px 16px;
  font-family: var(--font-sans);
  font-size: 13.5px;
  font-weight: 500;
  color: var(--faq-ink-soft);
  background: transparent;
  border: 1px solid var(--faq-line);
  border-radius: 0;
  cursor: pointer;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .filter-btn:hover,
.page-faq .filter-btn:focus-visible {
  color: #fff;
  border-color: var(--abg-cyan);
}

.page-faq .filter-btn[aria-pressed="true"] {
  color: #1B1411;
  background: var(--abg-cyan);
  border-color: var(--abg-cyan);
  font-weight: 700;
}

.page-faq .faq-cards {
  display: grid;
  gap: 12px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-cards__item {
  padding: 18px;
  background: var(--abg-graphite);
  border-left: 3px solid var(--abg-cyan);
}

.page-faq .faq-cards__item[hidden] {
  display: none;
}

.page-faq .faq-cards__label {
  margin: 0 0 8px;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--abg-orange);
}

.page-faq .faq-cards__title {
  margin: 0 0 8px;
  font-size: 15.5px;
  line-height: 1.45;
  font-weight: 700;
  color: #fff;
}

.page-faq .faq-cards__item p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--faq-ink-soft);
}

.page-faq .faq-filter__empty {
  margin: 16px 0 0;
  font-size: 14px;
  color: var(--abg-mist);
}

/* 浅色区块 */

.page-faq .faq-sec--paper {
  margin-top: 10px;
  padding: clamp(22px, 3vw, 34px);
  background: var(--abg-paper);
  color: var(--abg-ink);
  border-top: 0;
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 26px 100%, 0 calc(100% - 26px));
}

.page-faq .faq-sec--paper .faq-sec__title {
  color: var(--abg-ink);
}

.page-faq .faq-sec--paper .chapter-num {
  color: #B85A18;
}

.page-faq .faq-sec--paper .faq-sec__intro {
  color: #4A3E36;
}

.page-faq .faq-sec--paper .faq-sec__foot {
  color: #4A3E36;
}

.page-faq .faq-sec--paper .faq-sec__foot a {
  color: #9C4A12;
  border-bottom-color: rgba(156, 74, 18, 0.45);
}

.page-faq .faq-sec--paper .faq-sec__foot a:hover,
.page-faq .faq-sec--paper .faq-sec__foot a:focus-visible {
  color: var(--abg-ink);
  border-bottom-color: var(--abg-ink);
}

.page-faq .faq-checklist {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .faq-checklist li {
  position: relative;
  padding-left: 26px;
  font-size: 14.5px;
  line-height: 1.7;
  color: #33291F;
}

.page-faq .faq-checklist li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 7px;
  width: 11px;
  height: 6px;
  border-left: 2px solid #B85A18;
  border-bottom: 2px solid #B85A18;
  transform: rotate(-45deg);
}

.page-faq .faq-contact {
  padding-top: 20px;
  border-top: 1px dashed rgba(27, 20, 17, 0.28);
  display: grid;
  gap: 12px;
}

.page-faq .faq-contact__row {
  display: grid;
  gap: 4px;
}

.page-faq .faq-contact__label {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: #8A745F;
}

.page-faq .faq-contact__value {
  font-size: 15.5px;
  font-weight: 700;
  color: var(--abg-ink);
  text-decoration: none;
  word-break: break-word;
}

.page-faq a.faq-contact__value {
  border-bottom: 1px solid rgba(27, 20, 17, 0.35);
  justify-self: start;
}

.page-faq a.faq-contact__value:hover,
.page-faq a.faq-contact__value:focus-visible {
  color: #9C4A12;
  border-bottom-color: #9C4A12;
}

.page-faq .faq-contact__note {
  margin: 4px 0 0;
  font-size: 13px;
  line-height: 1.75;
  color: #6B5B4C;
}

/* ---------- 显现 ---------- */

@media (prefers-reduced-motion: no-preference) {
  .has-js .page-faq [data-reveal] {
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 0.55s var(--ease), transform 0.55s var(--ease);
  }

  .has-js .page-faq [data-reveal].is-visible {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 断点 ---------- */

@media (min-width: 640px) {
  .page-faq .faq-cadence li {
    grid-template-columns: 150px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }

  .page-faq .faq-contact__row {
    grid-template-columns: 96px minmax(0, 1fr);
    align-items: baseline;
    gap: 14px;
  }
}

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

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.85fr);
    gap: clamp(32px, 5vw, 64px);
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-body {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    position: sticky;
    top: 92px;
    border-top: 0;
    border-bottom: 0;
    border-left: 1px solid var(--faq-line);
    padding: 4px 0 4px 18px;
  }

  .page-faq .anchor-nav__list {
    flex-direction: column;
    gap: 6px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .anchor-nav__link {
    white-space: normal;
    width: 100%;
    box-sizing: border-box;
  }

  .page-faq .faq-sec__intro {
    font-size: 16px;
  }
}

@media (min-width: 1200px) {
  .page-faq .faq-sec {
    padding: 36px 0;
  }

  .page-faq .faq-steps__item {
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 18px;
    padding-bottom: 26px;
  }

  .page-faq .faq-steps__item:not(:last-child)::before {
    left: 25px;
  }

  .page-faq .faq-steps__num {
    width: 38px;
    height: 38px;
    font-size: 13px;
  }
}
<<<END>>>