.page-faq {
  --faq-card-line: rgba(16, 20, 24, 0.14);
  --faq-soft-paper: rgba(216, 207, 190, 0.3);
  --faq-gap: clamp(20px, 3vw, 34px);
  background: var(--sea);
  color: var(--paper);
}

.page-faq h1,
.page-faq h2,
.page-faq h3 {
  font-family: var(--font-display);
}

.page-faq .mono,
.page-faq .step-index,
.page-faq .index-num,
.page-faq .code-sample,
.page-faq .seg,
.page-faq .contact-value.mono,
.page-faq .cheat-list dt {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  padding: clamp(26px, 4.5vw, 56px) 0 clamp(34px, 5.5vw, 68px);
  background:
    radial-gradient(130% 90% at 82% 8%, rgba(31, 111, 168, 0.32), transparent 60%),
    linear-gradient(180deg, var(--sea-900) 0%, var(--sea) 100%);
  border-bottom: 1px solid var(--line-mist);
}

.page-faq .faq-hero .breadcrumbs {
  margin-bottom: clamp(20px, 3.4vw, 36px);
  font-size: 13px;
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 46px);
  align-items: end;
}

.page-faq h1 {
  margin: 14px 0 0;
  font-size: clamp(26px, 5vw, 46px);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -0.012em;
  color: var(--paper);
  max-width: 22ch;
}

.page-faq .lede {
  margin: 18px 0 0;
  max-width: 56ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--mist);
}

.page-faq .faq-hero-side {
  border-top: 1px solid var(--line-dark);
  padding-top: 18px;
}

.page-faq .faq-hero-side .update-chip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  padding: 11px 18px;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-pill);
  background: rgba(18, 56, 92, 0.55);
}

.page-faq .faq-hero-side .update-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 4px rgba(228, 87, 46, 0.18);
}

.page-faq .faq-hero-side .update-label {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-faq .faq-hero-side .update-time {
  font-size: clamp(17px, 2vw, 21px);
  color: var(--gold);
  letter-spacing: 0.04em;
}

.page-faq .faq-hero-side .note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 主布局 ---------- */

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  padding-top: clamp(32px, 5vw, 62px);
  padding-bottom: clamp(44px, 6vw, 82px);
}

.page-faq .faq-rail {
  align-self: start;
}

.page-faq .faq-rail-title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

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

.page-faq .faq-rail-list a {
  display: block;
  padding: 9px 10px 9px 14px;
  border-left: 2px solid var(--line-mist);
  color: var(--mist);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: color 200ms var(--ease), border-color 200ms var(--ease), background-color 200ms var(--ease);
}

.page-faq .faq-rail-list a:hover,
.page-faq .faq-rail-list a:focus-visible {
  color: var(--paper);
  border-left-color: var(--gold);
  background: rgba(18, 56, 92, 0.5);
}

.page-faq .faq-rail-list a[aria-current="true"] {
  color: var(--gold);
  border-left-color: var(--gold);
}

.page-faq .faq-cheatsheet {
  margin-top: 24px;
  padding: 16px 16px 14px;
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-card);
  background: rgba(18, 56, 92, 0.52);
}

.page-faq .faq-cheatsheet .eyebrow {
  margin: 0 0 12px;
}

.page-faq .cheat-list {
  margin: 0;
  display: grid;
  gap: 8px;
}

.page-faq .cheat-list > div {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 7px;
  border-bottom: 1px dashed var(--line-mist);
}

.page-faq .cheat-list > div:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .cheat-list dt {
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--gold);
}

.page-faq .cheat-list dd {
  margin: 0;
  font-size: 13px;
  color: var(--mist);
}

/* ---------- 区块外壳 ---------- */

.page-faq .faq-section {
  padding: clamp(22px, 3.2vw, 40px);
  border-radius: var(--radius-card);
  margin-bottom: var(--faq-gap);
}

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

.page-faq .faq-section--paper {
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--paper-dim);
}

.page-faq .faq-section--deep {
  background: linear-gradient(162deg, var(--sea) 0%, var(--sea-900) 100%);
  color: var(--paper);
  border: 1px solid var(--line-dark);
}

.page-faq .faq-section--mid {
  background: var(--sea-700);
  color: var(--paper);
  border: 1px solid var(--line-mist);
}

.page-faq .faq-section-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 13px;
  margin-bottom: clamp(18px, 2.4vw, 28px);
  border-bottom: 1px solid var(--line-dark);
}

.page-faq .faq-section--paper .faq-section-head {
  border-bottom-color: var(--faq-card-line);
}

.page-faq .faq-section-head .index-num {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-faq .faq-section--paper .faq-section-head .index-num {
  color: var(--gold-deep);
}

.page-faq .faq-section-head h2 {
  margin: 0;
  font-size: clamp(20px, 2.7vw, 30px);
  font-weight: 800;
  line-height: 1.3;
}

.page-faq .faq-intro {
  margin: 0 0 clamp(18px, 2.4vw, 26px);
  font-size: clamp(15px, 1.5vw, 16.5px);
  line-height: 1.8;
}

.page-faq .faq-section--deep .faq-intro,
.page-faq .faq-section--mid .faq-intro {
  color: var(--mist);
  max-width: 62ch;
}

/* ---------- 01 三步设置 ---------- */

.page-faq .faq-setup-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.2vw, 40px);
  align-items: start;
}

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

.page-faq .step-item {
  position: relative;
  padding: 0 0 28px 48px;
}

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

.page-faq .step-item::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 30px;
  bottom: 0;
  width: 1px;
  background: var(--faq-card-line);
}

.page-faq .step-item:last-child::before {
  display: none;
}

.page-faq .step-item::after {
  content: "";
  position: absolute;
  left: 9px;
  top: 9px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  border: 2px solid var(--gold-deep);
  background: var(--paper);
}

.page-faq .step-index {
  display: block;
  margin-bottom: 5px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold-deep);
}

.page-faq .step-item h3 {
  margin: 0 0 7px;
  font-size: clamp(17px, 1.8vw, 19px);
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
}

.page-faq .step-item p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(16, 20, 24, 0.78);
}

.page-faq .step-hint {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 10px !important;
  font-size: 14px !important;
  color: rgba(16, 20, 24, 0.68) !important;
}

.page-faq .step-hint .tag {
  flex: 0 0 auto;
  margin-top: 2px;
}

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

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

.page-faq .media-caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  color: rgba(16, 20, 24, 0.6);
}

.page-faq .faq-section--mid .media-caption,
.page-faq .faq-section--deep .media-caption {
  color: var(--mist);
}

/* ---------- 02 问答卡 ---------- */

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

.page-faq .qa-card {
  border: 1px solid var(--faq-card-line);
  border-left: 3px solid var(--paper-dim);
  border-radius: 2px;
  background: var(--faq-soft-paper);
  transition: border-color 200ms var(--ease), background-color 200ms var(--ease);
}

.page-faq .qa-card:hover {
  border-left-color: var(--gold-deep);
}

.page-faq .qa-card[open] {
  border-left-color: var(--gold);
  background: #fffdf8;
}

.page-faq .qa-card > summary {
  padding: 15px 18px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.55;
  color: var(--ink);
  cursor: pointer;
}

.page-faq .qa-card[open] > summary {
  color: var(--gold-deep);
}

.page-faq .qa-card .fold-body {
  padding: 0 18px 18px;
  font-size: 15.5px;
  line-height: 1.8;
  color: rgba(16, 20, 24, 0.8);
}

.page-faq .qa-card .fold-body p {
  margin: 0;
}

.page-faq .qa-card .fold-body ol,
.page-faq .qa-card .fold-body ul {
  margin: 10px 0 0;
  padding-left: 20px;
  display: grid;
  gap: 7px;
}

/* ---------- 03 更新节奏 ---------- */

.page-faq .schedule-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 34px);
  align-items: start;
}

.page-faq .fact-list {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .fact-list li {
  padding-left: 18px;
  border-left: 2px solid var(--gold);
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .fact-list strong {
  display: block;
  margin-bottom: 3px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
}

.page-faq .schedule-side .paper-panel {
  padding: 20px 20px 18px;
}

.page-faq .schedule-side .paper-panel .eyebrow {
  margin: 0 0 10px;
}

.page-faq .schedule-side .paper-panel p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
}

.page-faq .schedule-side .paper-panel p:last-child {
  margin-bottom: 0;
}

.page-faq .schedule-side .paper-panel .note {
  font-size: 13px;
  line-height: 1.7;
}

/* ---------- 04 旧版本资料区 ---------- */

.page-faq .archive-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 38px);
  align-items: center;
}

.page-faq .archive-copy p {
  margin: 0 0 16px;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--paper);
}

.page-faq .archive-points {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-faq .archive-points li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .archive-points .tag {
  flex: 0 0 auto;
  margin-top: 1px;
}

.page-faq .media-frame--archive {
  margin: 0;
  padding: 12px;
  background: var(--paper-dim);
  border: 1px solid var(--line-mist);
  border-radius: 2px;
}

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

/* ---------- 05 编号查询 ---------- */

.page-faq .code-breakdown {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  gap: 10px;
  margin: 0 0 clamp(20px, 2.6vw, 28px);
}

.page-faq .code-cell {
  padding: 14px 14px 12px;
  border: 1px solid var(--faq-card-line);
  border-top: 2px solid var(--gold-deep);
  border-radius: 2px;
  background: var(--faq-soft-paper);
}

.page-faq .code-cell .seg {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--gold-deep);
}

.page-faq .code-cell p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.65;
  color: rgba(16, 20, 24, 0.72);
}

.page-faq .code-example {
  padding-top: clamp(16px, 2.2vw, 22px);
  border-top: 1px dashed var(--faq-card-line);
}

.page-faq .code-sample {
  display: inline-block;
  margin: 0 0 14px;
  padding: 11px 18px;
  border-radius: 2px;
  background: var(--sea);
  color: var(--gold);
  font-size: clamp(15px, 2.6vw, 20px);
  letter-spacing: 0.08em;
  word-break: break-word;
}

.page-faq .code-explain {
  margin: 0 0 20px;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.82;
  color: rgba(16, 20, 24, 0.8);
}

/* ---------- 06 联系 ---------- */

.page-faq .contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-bottom: clamp(20px, 2.6vw, 30px);
}

.page-faq .contact-card {
  padding: 18px;
  border: 1px solid var(--line-dark);
  border-radius: 2px;
  background: rgba(18, 56, 92, 0.42);
}

.page-faq .contact-card .eyebrow {
  margin: 0 0 10px;
}

.page-faq .contact-value {
  margin: 0 0 8px;
  font-size: clamp(15px, 1.9vw, 18px);
  line-height: 1.5;
  color: var(--gold);
  word-break: break-word;
}

.page-faq .contact-note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .contact-tips {
  padding-top: clamp(18px, 2.4vw, 26px);
  border-top: 1px solid var(--line-dark);
}

.page-faq .contact-tips .eyebrow {
  margin: 0 0 10px;
}

.page-faq .contact-tips p {
  margin: 0 0 18px;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--mist);
}

.page-faq .btn {
  display: inline-block;
  text-decoration: none;
}

/* ---------- 窄屏保护 ---------- */

.page-faq img,
.page-faq svg {
  max-width: 100%;
  height: auto;
}

.page-faq .faq-layout,
.page-faq .faq-section,
.page-faq .faq-setup-grid,
.page-faq .schedule-grid,
.page-faq .archive-grid {
  min-width: 0;
}

@media (max-width: 479px) {
  .page-faq .faq-section {
    padding: 20px 16px;
    border-radius: 3px;
  }

  .page-faq .step-item {
    padding-left: 40px;
  }

  .page-faq .step-item::after {
    left: 6px;
  }

  .page-faq .step-item::before {
    left: 13px;
  }

  .page-faq .qa-card > summary {
    padding: 14px 14px;
    font-size: 15.5px;
  }

  .page-faq .qa-card .fold-body {
    padding: 0 14px 16px;
    font-size: 15px;
  }

  .page-faq .faq-hero-side .update-chip {
    border-radius: var(--radius-card);
  }
}

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

@media (min-width: 820px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.65fr) minmax(250px, 0.85fr);
  }

  .page-faq .faq-hero-side {
    border-top: 0;
    border-left: 1px solid var(--line-dark);
    padding-top: 0;
    padding-left: 22px;
  }

  .page-faq .faq-setup-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  }

  .page-faq .schedule-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(250px, 0.85fr);
  }

  .page-faq .archive-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: 252px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 60px);
  }

  .page-faq .faq-rail {
    position: sticky;
    top: calc(var(--header-h) + 26px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-rail-list a,
  .page-faq .qa-card {
    transition: none;
  }
}