.page-faq {
  --faq-gap: clamp(20px, 4vw, 40px);
  --faq-edge: 3px;
  display: block;
}

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  padding: clamp(16px, 3vw, 26px) 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--muted-soft);
}

.page-faq .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .breadcrumb a:hover,
.page-faq .breadcrumb a:focus-visible {
  color: var(--neon);
  border-bottom-color: var(--neon);
}

.page-faq .breadcrumb span {
  margin: 0 8px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding: clamp(26px, 5vw, 62px) 0 clamp(34px, 6vw, 72px);
  border-bottom: var(--faq-edge) solid var(--line-strong);
}

.page-faq .faq-hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  align-items: end;
}

.page-faq .faq-hero-main .eyebrow {
  display: inline-block;
  margin-bottom: 14px;
}

.page-faq h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 6.6vw, 66px);
  line-height: 1.04;
  letter-spacing: -.01em;
  margin: 0 0 clamp(16px, 3vw, 26px);
  color: var(--paper);
  max-width: 22ch;
}

.page-faq .faq-lede {
  font-family: var(--font-body);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--muted);
  max-width: 62ch;
  margin: 0;
}

.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(20px, 3.4vw, 32px);
}

.page-faq .faq-jump-item {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--paper);
  text-decoration: none;
  padding: 8px 13px;
  border: 2px solid var(--line-strong);
  background: transparent;
  transition: background .15s ease, color .15s ease, box-shadow .15s ease, transform .15s ease;
}

.page-faq .faq-jump-item:hover,
.page-faq .faq-jump-item:focus-visible {
  background: var(--neon);
  color: var(--ink);
  border-color: var(--neon);
  box-shadow: 4px 4px 0 var(--stone);
  transform: translate(-2px, -2px);
}

.page-faq .faq-hero-aside {
  border: var(--faq-edge) solid var(--line-strong);
  border-left-width: 8px;
  border-left-color: var(--field);
  background: var(--panel);
  padding: clamp(18px, 2.6vw, 26px);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-aside-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted-soft);
  margin: 0 0 6px;
}

.page-faq .faq-aside-ver {
  font-family: var(--font-mono);
  font-size: clamp(28px, 4.2vw, 40px);
  font-weight: 700;
  color: var(--neon);
  margin: 0 0 12px;
  letter-spacing: .02em;
}

.page-faq .faq-aside-note {
  font-family: var(--font-body);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
  margin: 0;
}

/* ---------- 章节外壳 ---------- */
.page-faq .faq-section {
  padding: clamp(44px, 7vw, 92px) 0;
}

.page-faq .faq-sec-head {
  margin-bottom: clamp(26px, 4vw, 46px);
  border-left: var(--faq-edge) solid var(--neon);
  padding-left: clamp(14px, 2vw, 22px);
}

.page-faq .faq-sec-head .eyebrow {
  display: block;
  margin-bottom: 10px;
}

.page-faq .faq-sec-head h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 4vw, 44px);
  line-height: 1.12;
  margin: 0 0 14px;
  color: var(--paper);
  max-width: 26ch;
}

.page-faq .faq-sec-lede {
  font-family: var(--font-body);
  font-size: clamp(14px, 1.5vw, 16px);
  line-height: 1.85;
  color: var(--muted);
  margin: 0;
  max-width: 66ch;
}

/* ---------- 热门问题速查 ---------- */
.page-faq .faq-quick-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
}

.page-faq .faq-board {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-faq .faq-note {
  border: var(--faq-edge) solid var(--line-strong);
  background: var(--panel);
  box-shadow: var(--shadow-soft);
  transition: box-shadow .15s ease, transform .15s ease, border-color .15s ease;
}

.page-faq .faq-note[open] {
  border-color: var(--field);
  border-left-color: var(--neon);
  border-left-width: 7px;
}

.page-faq .faq-note:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-note > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  padding: 14px clamp(14px, 2vw, 20px);
  list-style: none;
  font-family: var(--font-body);
  font-size: clamp(14.5px, 1.6vw, 16.5px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--paper);
}

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

.page-faq .faq-note > summary::after {
  content: "+";
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--neon);
  padding-top: 2px;
}

.page-faq .faq-note[open] > summary::after {
  content: "–";
}

.page-faq .faq-note > summary:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: -4px;
}

.page-faq .faq-note-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--ink);
  background: var(--neon);
  padding: 3px 7px;
  margin-top: 1px;
}

.page-faq .faq-note[open] .faq-note-num {
  background: var(--field);
  color: var(--paper);
}

.page-faq .faq-note-q {
  min-width: 0;
}

.page-faq .faq-note-a {
  padding: 0 clamp(14px, 2vw, 20px) 18px;
  border-top: 1px solid var(--line);
  margin: 0 clamp(14px, 2vw, 20px);
  padding-left: 0;
  padding-right: 0;
}

.page-faq .faq-note-a p {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
  margin: 14px 0 0;
}

.page-faq .faq-note-a p:first-child {
  margin-top: 14px;
}

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

.page-faq .faq-quick-figure .media-frame {
  border: var(--faq-edge) solid var(--line-strong);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

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

.page-faq .faq-quick-figure figcaption {
  margin-top: 12px;
  font-family: var(--font-body);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--muted-soft);
  border-left: 3px solid var(--clay);
  padding-left: 12px;
}

/* ---------- 米白纸感面板 ---------- */
.page-faq .faq-paper {
  background: var(--cream);
  color: var(--ink);
  border-top: var(--faq-edge) solid var(--stone);
  border-bottom: var(--faq-edge) solid var(--stone);
}

.page-faq .faq-paper .faq-sec-head {
  border-left-color: var(--clay);
}

.page-faq .faq-paper .eyebrow {
  color: var(--field);
}

.page-faq .faq-paper .faq-sec-head h2 {
  color: var(--ink);
}

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

/* ---------- 五种筛选维度 ---------- */
.page-faq .faq-dims {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--stone);
}

.page-faq .faq-dim {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 12px 16px;
  padding: 20px 0;
  border-bottom: 2px solid rgba(52, 58, 64, .22);
}

.page-faq .faq-dim-num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  color: var(--field);
  line-height: 1;
  padding-top: 4px;
}

.page-faq .faq-dim-body h3 {
  font-family: var(--font-display);
  font-size: clamp(19px, 2.4vw, 26px);
  font-weight: 700;
  letter-spacing: .01em;
  margin: 0 0 8px;
  color: var(--ink);
}

.page-faq .faq-dim-body p {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.85;
  color: var(--stone);
  margin: 0;
}

.page-faq .faq-dim-note {
  grid-column: 2;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--field);
  background: rgba(47, 107, 79, .12);
  border: 1px solid rgba(47, 107, 79, .38);
  padding: 3px 9px;
  justify-self: start;
}

.page-faq .faq-tip {
  margin-top: clamp(24px, 3.6vw, 38px);
  border: var(--faq-edge) solid var(--stone);
  border-left-width: 9px;
  border-left-color: var(--alert);
  background: rgba(255, 122, 61, .1);
  padding: clamp(16px, 2.4vw, 24px);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-tip-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--alert);
  margin: 0 0 8px;
}

.page-faq .faq-tip p:last-child {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.85;
  color: var(--stone);
  margin: 0;
}

.page-faq .faq-paper a,
.page-faq .faq-tip a {
  color: var(--field);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 2px solid var(--field);
}

.page-faq .faq-paper a:hover,
.page-faq .faq-tip a:hover,
.page-faq .faq-paper a:focus-visible,
.page-faq .faq-tip a:focus-visible {
  background: var(--neon);
  color: var(--ink);
}

/* ---------- 版本卡片 ---------- */
.page-faq .faq-ver-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-faq .faq-ver-card {
  border: var(--faq-edge) solid var(--line-strong);
  background: var(--panel);
  padding: clamp(18px, 2.6vw, 28px);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-ver-card--now {
  border-left-width: 9px;
  border-left-color: var(--neon);
}

.page-faq .faq-ver-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--neon);
  margin: 0 0 10px;
}

.page-faq .faq-ver-card h3 {
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.8vw, 28px);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--paper);
  margin: 0 0 16px;
}

.page-faq .faq-ver-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-faq .faq-ver-list li {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  padding-left: 18px;
  position: relative;
}

.page-faq .faq-ver-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  background: var(--field);
}

.page-faq .faq-ver-card--now .faq-ver-list li::before {
  background: var(--neon);
}

.page-faq .faq-ver-for {
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted-soft);
  border-top: 1px solid var(--line);
  padding-top: 13px;
  margin: 0;
}

/* ---------- 浏览器实测 ---------- */
.page-faq .faq-browser {
  margin-top: clamp(28px, 4.4vw, 48px);
  border: var(--faq-edge) solid var(--line-strong);
  background: var(--ink-deep);
  padding: clamp(18px, 2.8vw, 30px);
}

.page-faq .faq-browser-title {
  font-family: var(--font-display);
  font-size: clamp(19px, 2.6vw, 28px);
  font-weight: 700;
  color: var(--paper);
  margin: 0 0 12px;
}

.page-faq .faq-browser-lede {
  font-family: var(--font-body);
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--muted);
  margin: 0 0 20px;
  max-width: 70ch;
}

.page-faq .faq-browser-rows {
  display: grid;
  gap: 2px;
  background: var(--line);
}

.page-faq .faq-browser-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  background: var(--ink);
  padding: 14px clamp(12px, 1.8vw, 18px);
}

.page-faq .faq-browser-row p {
  font-family: var(--font-body);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
  margin: 0;
}

.page-faq .faq-browser-row .tag {
  justify-self: start;
}

.page-faq .faq-browser-foot {
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted-soft);
  margin: 18px 0 0;
}

.page-faq .faq-browser-foot a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 2px solid var(--neon);
}

.page-faq .faq-browser-foot a:hover,
.page-faq .faq-browser-foot a:focus-visible {
  background: var(--neon);
  color: var(--ink);
}

/* ---------- 联系渠道 ---------- */
.page-faq .faq-contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-faq .faq-contact-card {
  border: var(--faq-edge) solid var(--stone);
  background: rgba(245, 247, 242, .72);
  padding: clamp(16px, 2.3vw, 24px);
  box-shadow: var(--shadow-soft);
  transition: transform .15s ease, box-shadow .15s ease;
}

.page-faq .faq-contact-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hard);
}

.page-faq .faq-contact-key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--field);
  margin: 0 0 10px;
}

.page-faq .faq-contact-value {
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.9vw, 19px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
  margin: 0 0 12px;
  word-break: break-word;
}

.page-faq .faq-contact-value a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 3px solid var(--neon);
}

.page-faq .faq-contact-value a:hover,
.page-faq .faq-contact-value a:focus-visible {
  background: var(--neon);
}

.page-faq .faq-contact-desc {
  font-family: var(--font-body);
  font-size: 13.5px;
  line-height: 1.85;
  color: var(--stone);
  margin: 0;
}

/* ---------- 服务时段 ---------- */
.page-faq .faq-window {
  background: linear-gradient(180deg, rgba(47, 107, 79, .22), rgba(11, 31, 58, 0) 62%);
  border-top: var(--faq-edge) solid var(--field);
}

.page-faq .faq-window-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  align-items: start;
}

.page-faq .faq-window-body .eyebrow {
  display: block;
  margin-bottom: 10px;
}

.page-faq .faq-window-body h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 4vw, 42px);
  line-height: 1.12;
  color: var(--paper);
  margin: 0 0 12px;
  max-width: 20ch;
}

.page-faq .faq-window-lede {
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
  margin: 0 0 clamp(20px, 3vw, 30px);
  max-width: 60ch;
}

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

.page-faq .faq-window-list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  border-left: 5px solid var(--field);
  background: var(--panel);
  padding: 14px clamp(12px, 1.8vw, 18px);
}

.page-faq .faq-window-key {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--neon);
}

.page-faq .faq-window-val {
  font-family: var(--font-body);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

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

.page-faq .faq-window-figure .media-frame {
  border: var(--faq-edge) solid var(--line-strong);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

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

.page-faq .faq-window-figure figcaption {
  margin-top: 12px;
  font-family: var(--font-body);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--muted-soft);
  border-left: 3px solid var(--field);
  padding-left: 12px;
}

.page-faq .faq-cta {
  margin-top: clamp(26px, 4vw, 42px);
  border: 2px dashed var(--line-strong);
  padding: clamp(16px, 2.4vw, 24px);
}

.page-faq .faq-cta p {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
  margin: 0;
}

.page-faq .faq-cta a {
  color: var(--neon);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 2px solid var(--neon);
}

.page-faq .faq-cta a:hover,
.page-faq .faq-cta a:focus-visible {
  background: var(--neon);
  color: var(--ink);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .faq-jump {
    gap: 10px;
  }

  .page-faq .faq-ver-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-browser-row {
    grid-template-columns: 132px 1fr;
    align-items: center;
    gap: 16px;
  }

  .page-faq .faq-contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-window-list li {
    grid-template-columns: 200px 1fr;
    align-items: baseline;
    gap: 16px;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

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

  .page-faq .faq-quick-figure {
    position: sticky;
    top: 132px;
  }

  .page-faq .faq-dim {
    grid-template-columns: 60px minmax(0, 1fr) 190px;
    align-items: baseline;
    gap: 12px 24px;
  }

  .page-faq .faq-dim-note {
    grid-column: 3;
    justify-self: end;
  }

  .page-faq .faq-window-grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
  }
}

@media (max-width: 400px) {
  .page-faq .faq-dim {
    grid-template-columns: 34px 1fr;
    gap: 10px 12px;
  }

  .page-faq .faq-note > summary {
    gap: 9px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-note,
  .page-faq .faq-jump-item,
  .page-faq .faq-contact-card {
    transition: none;
  }

  .page-faq .faq-note:hover,
  .page-faq .faq-contact-card:hover {
    transform: none;
  }
}