.page-faq {
  --faq-band: clamp(40px, 6vw, 88px);
  --faq-node: 9px;
  background: var(--royal-blue-950);
  color: var(--ivory-100);
  font-family: var(--font-body);
}

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

/* ---------- 面包屑 ---------- */
.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 clamp(28px, 5vw, 56px);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--slate-300);
}
.page-faq .breadcrumb a {
  color: var(--champagne-200);
  text-decoration: none;
}
.page-faq .breadcrumb a:hover { text-decoration: underline; }

/* ---------- 首屏 ---------- */
.page-faq .faq-hero__inner {
  padding-block: clamp(28px, 5vw, 64px) clamp(44px, 7vw, 104px);
}
.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 56px);
  align-items: end;
}
.page-faq .faq-hero__title {
  margin: 12px 0 22px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 7vw, 84px);
  line-height: 1.1;
  letter-spacing: .01em;
  color: var(--ivory-100);
}
.page-faq .faq-hero__lede {
  max-width: 42ch;
  margin: 0 0 30px;
  font-size: clamp(15px, 1.5vw, 18px);
  line-height: 1.85;
  color: var(--slate-300);
}
.page-faq .faq-hero__quick {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-faq .faq-hero__figure {
  margin: 0;
  aspect-ratio: 10 / 7;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  overflow: hidden;
  background:
    linear-gradient(155deg, rgba(22, 48, 95, .85), rgba(5, 11, 26, .95)),
    repeating-linear-gradient(90deg, rgba(201, 164, 92, .16) 0 1px, transparent 1px 44px);
}
.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 分类导航 ---------- */
.page-faq .faq-cats__inner {
  padding-block: var(--faq-band);
}
.page-faq .faq-cats__list {
  list-style: none;
  margin: clamp(26px, 4vw, 46px) 0 0;
  padding: 0;
  border-left: 1px solid var(--hair);
}
.page-faq .faq-cats__item { position: relative; }
.page-faq .faq-cats__item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 32px;
  width: var(--faq-node);
  height: var(--faq-node);
  border-radius: 50%;
  background: var(--royal-blue-900);
  border: 1px solid var(--champagne-500);
  transition: transform .18s var(--ease), background .18s var(--ease);
}
.page-faq .faq-cats__item:hover::before {
  transform: scale(1.35);
  background: var(--champagne-500);
}
.page-faq .faq-cats__link {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 16px;
  padding: 20px 8px 20px 24px;
  border-bottom: 1px solid var(--hair-soft);
  text-decoration: none;
  color: inherit;
  transition: transform .18s var(--ease);
}
.page-faq .faq-cats__link:hover { transform: translateX(4px); }
.page-faq .faq-cats__num {
  grid-column: 1;
  grid-row: 1;
  padding-top: 6px;
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--champagne-500);
}
.page-faq .faq-cats__name {
  grid-column: 2;
  grid-row: 1;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 2.3vw, 26px);
  line-height: 1.4;
  color: var(--ivory-100);
  transition: color .18s var(--ease);
}
.page-faq .faq-cats__link:hover .faq-cats__name { color: var(--champagne-200); }
.page-faq .faq-cats__desc {
  grid-column: 2;
  grid-row: 2;
  font-size: 15px;
  line-height: 1.8;
  color: var(--slate-300);
}

/* ---------- 问答分区骨架 ---------- */
.page-faq .faq-sec__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.5vw, 48px);
  padding-block: var(--faq-band);
}
.page-faq .faq-sec__num {
  display: block;
  margin-bottom: 10px;
  font-size: 13px;
  letter-spacing: .22em;
  color: var(--champagne-500);
}
.page-faq .faq-sec__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(23px, 3vw, 34px);
  line-height: 1.3;
  color: var(--ivory-100);
}
.page-faq .faq-sec__vnote {
  display: block;
  margin: 0 0 14px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--brass-line);
}
.page-faq .faq-sec__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate-300);
}
.page-faq .faq-sec__body {
  display: grid;
  gap: clamp(22px, 3vw, 38px);
  align-content: start;
  min-width: 0;
}
.page-faq .faq-sec__lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--slate-300);
  max-width: 56ch;
}
.page-faq .faq-sec__figure {
  position: relative;
  margin: 0;
  aspect-ratio: 3 / 2;
  border: 1px solid var(--hair-soft);
  border-radius: var(--radius);
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(10, 23, 51, .6), rgba(5, 11, 26, .9)),
    repeating-linear-gradient(0deg, rgba(201, 164, 92, .14) 0 1px, transparent 1px 38px);
}
.page-faq .faq-sec__figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.page-faq .faq-sec__figure .media-frame__cap {
  position: static;
  padding: 12px 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate-300);
  border-top: 1px solid var(--hair-soft);
}
.page-faq .faq-sec__more { margin: 0; }

/* ---------- 折叠问答 ---------- */
.page-faq .qa-list { border-top: 1px solid var(--hair); }
.page-faq .qa {
  border-bottom: 1px solid var(--hair-soft);
  transition: background .18s var(--ease);
}
.page-faq .qa[open] { background: var(--glass-veil); }
.page-faq .qa__q {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 20px 34px 20px 0;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(17px, 1.9vw, 22px);
  line-height: 1.55;
  color: var(--ivory-100);
  transition: color .18s var(--ease);
}
.page-faq .qa__q::-webkit-details-marker { display: none; }
.page-faq .qa__q:hover { color: var(--champagne-200); }
.page-faq .qa__q::after {
  content: "";
  position: absolute;
  right: 6px;
  top: 28px;
  width: 9px;
  height: 9px;
  border-right: 1px solid var(--champagne-500);
  border-bottom: 1px solid var(--champagne-500);
  transform: rotate(45deg);
  transition: transform .2s var(--ease), top .2s var(--ease);
}
.page-faq .qa[open] .qa__q { color: var(--champagne-200); }
.page-faq .qa[open] .qa__q::after {
  top: 32px;
  transform: rotate(-135deg);
}
.page-faq .qa__i {
  flex: none;
  min-width: 30px;
  padding-top: 5px;
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--champagne-500);
}
.page-faq .qa__a {
  padding: 0 20px 24px 42px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--slate-300);
  max-width: 64ch;
}
.page-faq .qa__a p { margin: 0 0 12px; }
.page-faq .qa__a p:last-child { margin-bottom: 0; }
.page-faq .qa__a strong {
  color: var(--ivory-100);
  font-weight: 600;
}
.page-faq .qa__steps {
  list-style: none;
  counter-reset: st;
  margin: 0 0 14px;
  padding: 0;
}
.page-faq .qa__steps li {
  position: relative;
  counter-increment: st;
  padding-left: 32px;
  margin-bottom: 10px;
}
.page-faq .qa__steps li:last-child { margin-bottom: 0; }
.page-faq .qa__steps li::before {
  content: counter(st, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--champagne-500);
}

/* ---------- 速查筛选 ---------- */
.page-faq .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-faq .filter-btn {
  padding: 8px 16px;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  background: transparent;
  color: var(--slate-300);
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: .08em;
  cursor: pointer;
  transition: color .18s var(--ease), border-color .18s var(--ease), background .18s var(--ease);
}
.page-faq .filter-btn:hover {
  color: var(--champagne-200);
  border-color: var(--champagne-500);
}
.page-faq .filter-btn.is-active,
.page-faq .filter-btn[aria-pressed="true"] {
  background: var(--champagne-500);
  border-color: var(--champagne-500);
  color: var(--royal-blue-950);
}

.page-faq .trouble-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
.page-faq .trouble {
  padding: 18px 20px;
  border: 1px solid var(--hair-soft);
  border-radius: var(--radius);
  background: var(--glass-veil);
  transition: transform .18s var(--ease), border-color .18s var(--ease);
}
.page-faq .trouble:hover {
  transform: translateY(-2px);
  border-color: var(--hair);
}
.page-faq .trouble__sym {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ivory-100);
}
.page-faq .trouble__fix {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--slate-300);
}

/* ---------- 服务两步 ---------- */
.page-faq .flow {
  list-style: none;
  margin: 4px 0 0;
  padding: 0 0 0 4px;
  border-left: 1px solid var(--hair);
}
.page-faq .flow__item {
  position: relative;
  padding: 0 0 28px 26px;
}
.page-faq .flow__item:last-child { padding-bottom: 0; }
.page-faq .flow__item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 5px;
  width: var(--faq-node);
  height: var(--faq-node);
  border-radius: 50%;
  background: var(--champagne-500);
  box-shadow: 0 0 0 4px rgba(201, 164, 92, .16);
}
.page-faq .flow__num {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  letter-spacing: .24em;
  color: var(--champagne-500);
}
.page-faq .flow__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2.1vw, 23px);
  line-height: 1.45;
  color: var(--ivory-100);
}
.page-faq .flow__text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--slate-300);
  max-width: 54ch;
}

/* ---------- 联系收束 ---------- */
.page-faq .faq-help__inner {
  padding-block: var(--faq-band);
}
.page-faq .faq-help__title {
  margin: 12px 0 18px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.3;
  color: var(--ivory-100);
}
.page-faq .faq-help__text {
  margin: 0 0 clamp(26px, 3.5vw, 42px);
  max-width: 58ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--slate-300);
}
.page-faq .faq-help__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.page-faq .faq-help__card {
  padding: 22px 24px;
  border: 1px solid var(--hair);
  border-radius: var(--radius);
  background: linear-gradient(150deg, rgba(22, 48, 95, .5), rgba(10, 23, 51, .78));
}
.page-faq .faq-help__label {
  margin: 0 0 10px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--slate-300);
}
.page-faq .faq-help__value {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(20px, 2.4vw, 28px);
  line-height: 1.35;
  color: var(--champagne-200);
}
.page-faq .faq-help__value--num {
  font-family: var(--font-num);
  letter-spacing: .06em;
}
.page-faq .faq-help__value--mail {
  font-family: var(--font-num);
  font-size: clamp(17px, 2vw, 24px);
  letter-spacing: .02em;
  word-break: break-all;
}
.page-faq .faq-help__meta {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--slate-300);
}
.page-faq .faq-help__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: clamp(26px, 3.5vw, 40px) 0 0;
}

/* ---------- 窄屏收敛 ---------- */
@media (max-width: 480px) {
  .page-faq .qa__a { padding-left: 0; padding-right: 6px; }
  .page-faq .qa__q { padding-right: 26px; }
  .page-faq .faq-cats__link { padding-left: 18px; }
}

/* ---------- 平板 ---------- */
@media (min-width: 700px) {
  .page-faq .trouble-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-faq .faq-help__cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: 8fr 5fr;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-sec__grid {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: clamp(36px, 5vw, 76px);
  }
  .page-faq .faq-sec__aside {
    position: sticky;
    top: 40px;
    align-self: start;
  }
  .page-faq .faq-cats__list { max-width: 1000px; }
  .page-faq .faq-help__cards { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 1200px) {
  .page-faq .faq-sec__grid { grid-template-columns: 280px minmax(0, 1fr); }
}