.page-faq {
  --faq-rail-w: 236px;
  background: var(--paper);
  color: var(--black);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.75;
}

/* ---------- 面包屑留白 ---------- */
.page-faq > .wrap {
  padding-top: clamp(16px, 2.4vw, 28px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(18px, 3vw, 40px) 0 clamp(36px, 6vw, 88px);
  background: linear-gradient(180deg, var(--paper) 0%, var(--paper) 55%, var(--paper-deep) 100%);
  border-bottom: 2px solid var(--black);
}

.page-faq .faq-hero-inner {
  display: grid;
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}

@media (min-width: 900px) {
  .page-faq .faq-hero-inner {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.85fr);
  }
}

.page-faq .faq-eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--red);
  text-transform: uppercase;
}

.page-faq h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.1rem, 5vw, 3.9rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.page-faq .faq-hero-lede {
  margin: 0;
  max-width: 40em;
  font-size: clamp(1rem, 1.15vw, 1.1rem);
  line-height: 1.85;
  color: #33383f;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .faq-hero-panel {
  background: var(--ink);
  color: var(--paper);
  border: 2px solid var(--black);
  box-shadow: var(--hard-shadow);
  padding: clamp(20px, 3vw, 32px);
}

.page-faq .faq-panel-coord {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--gray);
}

.page-faq .faq-panel-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 18px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-panel-item {
  padding-left: 12px;
  border-left: 2px solid var(--orange);
}

.page-faq .faq-panel-num {
  display: block;
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
}

.page-faq .faq-panel-label {
  display: block;
  margin-top: 9px;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--paper-deep);
}

/* ---------- 通用小标题组 ---------- */
.page-faq .faq-sec-idx,
.page-faq .faq-block-num {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--red);
}

.page-faq h2 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.5rem, 2.9vw, 2.3rem);
  line-height: 1.2;
}

.page-faq h3 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.35;
}

.page-faq .faq-sec-lede,
.page-faq .faq-block-lede {
  margin: 0;
  max-width: 40em;
  font-size: 15.5px;
  line-height: 1.85;
  color: #33383f;
}

/* ---------- 主题入口 ---------- */
.page-faq .faq-topics {
  padding: clamp(40px, 6vw, 88px) 0 clamp(32px, 5vw, 64px);
}

.page-faq .faq-sec-head {
  margin-bottom: clamp(24px, 3.4vw, 40px);
}

.page-faq .faq-topic-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-topic-link {
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 100%;
  padding: 20px 18px 22px;
  background: var(--paper);
  border: 2px solid var(--black);
  border-top-width: 6px;
  box-shadow: 4px 4px 0 var(--red-deep);
  color: inherit;
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.page-faq .faq-topic-link:hover,
.page-faq .faq-topic-link:focus-visible {
  transform: translate(-2px, -4px);
  box-shadow: 7px 8px 0 var(--red-deep);
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.page-faq .faq-topic.is-account .faq-topic-link { border-top-color: var(--red); }
.page-faq .faq-topic.is-subscribe .faq-topic-link { border-top-color: var(--orange); }
.page-faq .faq-topic.is-desktop .faq-topic-link { border-top-color: var(--ink); }
.page-faq .faq-topic.is-correct .faq-topic-link { border-top-color: var(--teal); }
.page-faq .faq-topic.is-security .faq-topic-link { border-top-color: var(--gold); }

.page-faq .faq-topic-idx {
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--gray);
}

.page-faq .faq-topic-count {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--red);
}

.page-faq .faq-topic-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  line-height: 1.3;
}

.page-faq .faq-topic-desc {
  font-size: 13px;
  line-height: 1.7;
  color: #3c424c;
}

/* ---------- 正文布局 ---------- */
.page-faq .faq-body {
  padding: clamp(28px, 5vw, 72px) 0 clamp(40px, 6vw, 96px);
}

.page-faq .faq-layout {
  display: grid;
  gap: clamp(24px, 3vw, 48px);
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: var(--faq-rail-w) minmax(0, 1fr);
    align-items: start;
  }
}

.page-faq .faq-rail {
  display: none;
}

@media (min-width: 1000px) {
  .page-faq .faq-rail {
    display: block;
    position: sticky;
    top: 24px;
    padding: 18px 16px;
    background: var(--paper-deep);
    border: 2px solid var(--black);
    box-shadow: 4px 4px 0 var(--red-deep);
  }
}

.page-faq .faq-rail-title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--red);
}

.page-faq .faq-rail-list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-rail-link {
  display: block;
  padding: 9px 10px;
  font-size: 14px;
  color: var(--black);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: border-color 0.16s ease, background 0.16s ease;
}

.page-faq .faq-rail-link:hover,
.page-faq .faq-rail-link:focus-visible {
  border-left-color: var(--orange);
  background: var(--paper);
  outline: none;
}

/* ---------- 章节块 ---------- */
.page-faq .faq-block {
  padding: clamp(26px, 4vw, 48px) 0 clamp(30px, 4.6vw, 60px);
  border-top: 2px solid var(--black);
}

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

.page-faq .faq-block-head {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-faq .faq-block--dark {
  padding: clamp(24px, 3.6vw, 44px);
  background: var(--ink);
  color: var(--paper);
  border: 2px solid var(--black);
  box-shadow: var(--hard-shadow-dark);
}

.page-faq .faq-block--dark .faq-block-num {
  color: var(--gold);
}

.page-faq .faq-block--dark .faq-block-lede {
  color: var(--paper-deep);
}

/* ---------- 图片 ---------- */
.page-faq .faq-media {
  margin: 0 0 26px;
  background: var(--paper-deep);
  border: 2px solid var(--black);
  box-shadow: var(--hard-shadow);
  overflow: hidden;
}

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

/* ---------- 步骤卡 ---------- */
.page-faq .step-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .step-details {
  background: var(--paper);
  border: 2px solid var(--black);
  box-shadow: 3px 3px 0 var(--paper-deep);
  transition: box-shadow 0.18s ease;
}

.page-faq .step-details[open] {
  box-shadow: 5px 5px 0 var(--red-deep);
}

.page-faq .step-summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .step-summary:hover .step-title {
  color: var(--red);
}

.page-faq .step-num {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--red);
  line-height: 1;
}

.page-faq .step-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  line-height: 1.4;
  transition: color 0.16s ease;
}

.page-faq .step-toggle {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--gray);
}

.page-faq .step-body {
  padding: 6px 18px 20px;
  border-top: 2px dashed var(--paper-deep);
}

.page-faq .step-meta {
  margin: 12px 0 12px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--red);
}

.page-faq .step-points {
  display: grid;
  gap: 9px;
  margin: 0;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.8;
  color: #30353d;
}

.page-faq .step-points a {
  color: var(--red);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 折叠问答 ---------- */
.page-faq .qa-list {
  display: grid;
  gap: 12px;
  margin-top: 26px;
}

.page-faq .qa-item {
  background: var(--paper-deep);
  border: 2px solid var(--black);
  transition: background 0.18s ease, box-shadow 0.18s ease;
}

.page-faq .qa-item > summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.55;
}

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

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

.page-faq .qa-mark {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--red);
}

.page-faq .qa-body {
  padding: 0 16px 18px;
  font-size: 14.5px;
  line-height: 1.85;
  color: #30353d;
}

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

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

.page-faq .qa-body a {
  color: var(--red);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .qa-item[open] {
  background: var(--paper);
  box-shadow: 3px 3px 0 var(--red-deep);
}

.page-faq .qa-item[open] > .qa-body {
  animation: faq-open 0.3s ease both;
}

@keyframes faq-open {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: none; }
}

/* 深色块内的问答 */
.page-faq .faq-block--dark .faq-facts + .qa-list {
  margin-top: 30px;
}

.page-faq .faq-block--dark .qa-item {
  background: var(--ink-mid);
  border-color: var(--black);
  color: var(--paper);
}

.page-faq .faq-block--dark .qa-item > summary {
  color: var(--paper);
}

.page-faq .faq-block--dark .qa-mark {
  color: var(--gold);
}

.page-faq .faq-block--dark .qa-body {
  color: var(--paper-deep);
}

.page-faq .faq-block--dark .qa-body a {
  color: var(--gold);
}

.page-faq .faq-block--dark .qa-item[open] {
  background: var(--ink-mid);
  box-shadow: 3px 3px 0 var(--black);
}

/* ---------- 订阅事实表 ---------- */
.page-faq .faq-facts {
  display: grid;
  gap: 16px;
  margin: 26px 0 0;
}

@media (min-width: 760px) {
  .page-faq .faq-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .faq-fact {
  padding-top: 12px;
  border-top: 3px solid var(--orange);
}

.page-faq .faq-fact dt {
  margin-bottom: 7px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-faq .faq-fact dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--paper);
}

/* ---------- 自查顺序 ---------- */
.page-faq .faq-check-list {
  display: grid;
  gap: 10px;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
}

.page-faq .faq-check-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 13px 16px;
  background: var(--paper-deep);
  border-left: 4px solid var(--ink);
  font-size: 14.5px;
  line-height: 1.78;
  color: #30353d;
}

.page-faq .faq-check-list .mono {
  padding-top: 3px;
  font-size: 12px;
  color: var(--red);
}

/* ---------- 纠错清单 ---------- */
.page-faq .faq-fix-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-fix-list li {
  display: grid;
  gap: 8px;
  padding: 16px 18px;
  background: var(--paper-deep);
  border: 2px solid var(--black);
  border-left-width: 8px;
  border-left-color: var(--ink);
  box-shadow: 3px 3px 0 rgba(11, 14, 18, 0.12);
  font-size: 14.5px;
  line-height: 1.78;
  color: #30353d;
}

@media (min-width: 720px) {
  .page-faq .faq-fix-list li {
    grid-template-columns: 120px minmax(0, 1fr);
    align-items: start;
    gap: 16px;
  }
}

.page-faq .faq-fix-key {
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--red);
}

.page-faq .faq-note {
  margin: 24px 0 0;
  padding: 16px 18px;
  background: var(--paper-deep);
  border: 2px solid var(--black);
  border-left-width: 8px;
  border-left-color: var(--orange);
  font-size: 14px;
  line-height: 1.8;
}

.page-faq .faq-note .copy-value {
  font-family: var(--font-mono);
  font-size: 14px;
}

/* ---------- 联系客服区 ---------- */
.page-faq .faq-escalate {
  padding: clamp(44px, 6vw, 92px) 0 clamp(48px, 6vw, 96px);
  background: var(--ink);
  color: var(--paper);
  border-top: 2px solid var(--black);
}

.page-faq .faq-escalate h2 {
  color: var(--paper);
}

.page-faq .faq-escalate .faq-sec-idx {
  color: var(--gold);
}

.page-faq .faq-escalate .faq-sec-lede {
  color: var(--paper-deep);
}

.page-faq .faq-contact-grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(24px, 3.4vw, 40px);
}

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

.page-faq .faq-contact-card {
  padding: 22px 20px;
  background: var(--ink-mid);
  border: 2px solid var(--black);
  box-shadow: 5px 5px 0 var(--black);
}

.page-faq .faq-contact-card h3 {
  margin: 0 0 10px;
  font-size: 1.08rem;
  color: var(--paper);
}

.page-faq .faq-contact-card p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--paper-deep);
}

.page-faq .faq-mail-row {
  margin: 0;
}

.page-faq .faq-escalate-more {
  margin: clamp(24px, 3.4vw, 40px) 0 0;
  max-width: 46em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--paper-deep);
}

.page-faq .faq-escalate-more a {
  color: var(--gold);
  text-decoration: underline;
  text-underline-offset: 4px;
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-topic-link,
  .page-faq .step-details,
  .page-faq .qa-item,
  .page-faq .faq-rail-link {
    transition: none;
  }
  .page-faq .qa-item[open] > .qa-body {
    animation: none;
  }
}
<<<END>>>