/* ===== 问题排查 / page-faq ===== */

.page-faq {
  background: var(--ivory);
  color: var(--ink);
  font-family: var(--font-cn);
  overflow-x: clip;
}

.page-faq h1,
.page-faq h2,
.page-faq h3 {
  margin: 0;
  line-height: 1.22;
  letter-spacing: -0.02em;
}

.page-faq p {
  margin: 0;
}

.page-faq ul,
.page-faq ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

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

/* ---- 面包屑 ---- */
.page-faq .faq-crumbs {
  padding-top: 18px;
}

.page-faq .crumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  font-family: var(--font-serif);
  font-size: var(--fs-13);
  letter-spacing: 0.08em;
}

.page-faq .crumbs__item + .crumbs__item::before {
  content: "/";
  margin-right: 10px;
  color: var(--violet);
  opacity: 0.6;
}

.page-faq .crumbs__link {
  color: var(--violet);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-faq .crumbs__link:hover,
.page-faq .crumbs__link[aria-current="page"] {
  color: var(--emerald);
  border-bottom-color: var(--emerald-b);
}

/* ---- 首屏 ---- */
.page-faq .faq-hero {
  padding: 26px 0 62px;
  background:
    radial-gradient(120% 82% at 86% 0%, rgba(23, 168, 134, 0.16) 0%, rgba(245, 239, 227, 0) 62%),
    linear-gradient(180deg, rgba(36, 28, 59, 0.05), rgba(245, 239, 227, 0) 58%);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: 30px;
}

.page-faq .faq-hero__eyebrow {
  display: inline-block;
  padding: 5px 14px 5px 11px;
  background: var(--ink);
  color: var(--ivory);
  font-family: var(--font-serif);
  font-size: var(--fs-13);
  letter-spacing: 0.18em;
  clip-path: polygon(0 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
}

.page-faq .faq-hero__title {
  position: relative;
  margin-top: 16px;
  padding-left: 20px;
  font-size: clamp(30px, 7.6vw, 56px);
  font-weight: 900;
  color: var(--ink);
}

.page-faq .faq-hero__title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.14em;
  bottom: 0.14em;
  width: 7px;
  background: var(--emerald);
  clip-path: polygon(0 0, 100% 10px, 100% 100%, 0 calc(100% - 10px));
}

.page-faq .faq-hero__text {
  margin-top: 18px;
  max-width: 46ch;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--violet);
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 30px;
  margin-top: 28px;
}

.page-faq .faq-hero__stat {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .faq-hero__stat .u-num {
  font-family: var(--font-num);
  font-size: 34px;
  line-height: 1;
  font-weight: 600;
  color: var(--emerald);
  letter-spacing: -0.01em;
}

.page-faq .faq-hero__stat-label {
  font-family: var(--font-serif);
  font-size: var(--fs-13);
  letter-spacing: 0.08em;
  color: var(--violet);
}

.page-faq .faq-hero__figure {
  position: relative;
  margin: 0;
  background: var(--night);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-faq .faq-hero__figure img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-faq .faq-hero__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(140deg, rgba(20, 16, 38, 0.36), rgba(14, 107, 90, 0.28));
}

/* ---- 四类索引 ---- */
.page-faq .faq-index {
  padding: 6px 0 68px;
}

.page-faq .faq-index__head {
  --cat: var(--emerald);
}

.page-faq .sec-head {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 2px 16px;
  padding-bottom: 1px;
}

.page-faq .sec-head__num {
  grid-row: 1 / 3;
  font-family: var(--font-num);
  font-size: 44px;
  font-weight: 600;
  line-height: 0.85;
  letter-spacing: -0.03em;
  color: var(--cat, var(--emerald));
}

.page-faq .sec-head__title {
  font-size: var(--fs-28);
  font-weight: 700;
  color: var(--ink);
}

.page-faq .sec-head__note {
  font-family: var(--font-serif);
  font-size: var(--fs-13);
  letter-spacing: 0.08em;
  color: var(--violet);
}

.page-faq .index-grid {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.page-faq .index-card {
  position: relative;
  display: block;
  padding: 20px 18px 22px;
  color: var(--ink);
  text-decoration: none;
  background: var(--paper);
  box-shadow: inset 0 0 0 1px var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
  transition: transform var(--t-fast), box-shadow var(--t-fast), background var(--t-fast);
}

.page-faq .index-card:nth-child(1) { --cat: var(--emerald); }
.page-faq .index-card:nth-child(2) {
  --cat: var(--violet);
  clip-path: polygon(var(--cut) 0, 100% 0, 100% 100%, 0 100%, 0 var(--cut));
}
.page-faq .index-card:nth-child(3) {
  --cat: var(--emerald-b);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}
.page-faq .index-card:nth-child(4) {
  --cat: var(--night);
  clip-path: polygon(0 0, 100% 0, 100% 100%, var(--cut) 100%, 0 calc(100% - var(--cut)));
}

.page-faq .index-card:hover,
.page-faq .index-card:focus-visible {
  background: #fffdf7;
  transform: translate(-2px, -2px);
  box-shadow: inset 0 0 0 2px var(--emerald-b);
}

.page-faq .index-card:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 4px;
}

.page-faq .index-card__num {
  display: block;
  font-family: var(--font-num);
  font-size: 42px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--cat, var(--emerald));
}

.page-faq .index-card__title {
  display: block;
  margin-top: 10px;
  font-size: var(--fs-22);
  font-weight: 700;
  color: var(--ink);
}

.page-faq .index-card__desc {
  display: block;
  margin-top: 8px;
  font-size: var(--fs-13);
  line-height: 1.7;
  color: var(--violet);
}

.page-faq .index-card__arrow {
  display: block;
  margin-top: 16px;
  font-family: var(--font-serif);
  font-size: var(--fs-13);
  letter-spacing: 0.12em;
  color: var(--cat, var(--emerald));
}

.page-faq .index-card__arrow::after {
  content: " →";
  transition: margin var(--t-fast);
}

.page-faq .index-card:hover .index-card__arrow::after {
  margin-left: 6px;
}

/* ---- 分类分区 ---- */
.page-faq .faq-cat {
  position: relative;
  padding-bottom: 62px;
}

.page-faq .faq-cat::before {
  content: "";
  display: block;
  height: 6px;
  margin-bottom: 26px;
  background: var(--cat, var(--emerald));
  opacity: 0.92;
}

.page-faq .faq-cat--reg { --cat: var(--emerald); }
.page-faq .faq-cat--pay { --cat: var(--violet); }
.page-faq .faq-cat--task { --cat: var(--emerald-b); }
.page-faq .faq-cat--mobile { --cat: var(--night); }

.page-faq .faq-cat__head {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-cat__back {
  grid-column: 2;
  justify-self: start;
  margin-top: 8px;
  font-family: var(--font-serif);
  font-size: var(--fs-13);
  letter-spacing: 0.08em;
  color: var(--violet);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-faq .faq-cat__back:hover {
  color: var(--emerald);
  border-bottom-color: var(--emerald-b);
}

.page-faq .faq-cat__back:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

/* ---- 问答条目 ---- */
.page-faq .qa-list {
  margin-top: 6px;
}

.page-faq .qa {
  position: relative;
  border-bottom: 1px solid var(--line);
  transition: background var(--t-fast), box-shadow var(--t-fast);
}

.page-faq .qa[data-open="true"] {
  background: var(--paper);
  box-shadow: inset 3px 0 0 var(--emerald-b);
}

.page-faq .qa__head {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-faq .qa__toggle {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) 20px;
  align-items: center;
  gap: 0 14px;
  width: 100%;
  min-height: 64px;
  padding: 16px 8px 16px 4px;
  background: none;
  border: 0;
  font: inherit;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
  transition: background var(--t-fast);
}

.page-faq .qa__toggle:hover {
  background: var(--gold-l);
}

.page-faq .qa__toggle:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -2px;
  box-shadow: inset 4px 0 0 var(--gold);
}

.page-faq .qa__num {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  justify-self: start;
  font-family: var(--font-num);
  font-size: 18px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--cat, var(--emerald));
}

.page-faq .qa__q {
  font-size: 17px;
  font-weight: 500;
  line-height: 1.6;
  color: var(--ink);
  transition: color var(--t-fast);
}

.page-faq .qa__toggle:hover .qa__q {
  color: var(--emerald);
}

.page-faq .qa__mark {
  position: relative;
  justify-self: end;
  width: 20px;
  height: 20px;
}

.page-faq .qa__mark::before,
.page-faq .qa__mark::after {
  content: "";
  position: absolute;
  background: var(--emerald);
  transition: transform var(--t-open), opacity var(--t-fast);
}

.page-faq .qa__mark::before {
  left: 0;
  right: 0;
  top: 9px;
  height: 2px;
}

.page-faq .qa__mark::after {
  top: 0;
  bottom: 0;
  left: 9px;
  width: 2px;
}

.page-faq .qa[data-open="true"] .qa__mark::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .qa__panel {
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  visibility: hidden;
  transition: max-height var(--t-open), opacity var(--t-fast), visibility 0s linear 300ms;
}

.page-faq .qa[data-open="true"] .qa__panel {
  max-height: 1400px;
  opacity: 1;
  visibility: visible;
  transition: max-height var(--t-open), opacity var(--t-fast);
}

.page-faq .qa__body {
  max-width: 62ch;
  padding: 2px 10px 24px 44px;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--violet);
}

.page-faq .qa__points {
  display: grid;
  gap: 8px;
}

.page-faq .qa__points li {
  position: relative;
  padding-left: 18px;
}

.page-faq .qa__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 9px;
  height: 2px;
  background: var(--emerald-b);
}

.page-faq .qa__ref {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-family: var(--font-serif);
  font-size: var(--fs-13);
  letter-spacing: 0.06em;
  color: var(--violet);
}

.page-faq .qa__ref a {
  color: var(--emerald);
  text-decoration: none;
  border-bottom: 1px solid var(--emerald-b);
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-faq .qa__ref a:hover {
  color: var(--emerald-b);
  border-bottom-color: var(--gold);
}

/* ---- 移动端分区配图 ---- */
.page-faq .faq-cat__split {
  display: grid;
  gap: 30px;
}

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

.page-faq .faq-mobile-figure__frame {
  position: relative;
  background: var(--night);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}

.page-faq .faq-mobile-figure__frame img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.page-faq .faq-mobile-figure__frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(150deg, rgba(20, 16, 38, 0.42), rgba(14, 107, 90, 0.24));
}

.page-faq .media-frame__cap {
  display: block;
  margin-top: 12px;
  font-family: var(--font-serif);
  font-size: var(--fs-13);
  line-height: 1.7;
  letter-spacing: 0.08em;
  color: var(--violet);
}

/* ---- 人工咨询 ---- */
.page-faq .faq-help {
  padding-bottom: 74px;
}

.page-faq .faq-help__panel {
  padding: 34px 22px 34px 24px;
  color: var(--ivory);
  background-color: var(--night);
  background-image: linear-gradient(152deg, rgba(23, 168, 134, 0.24), rgba(20, 16, 38, 0) 58%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 24px), calc(100% - 24px) 100%, 0 100%);
}

.page-faq .faq-help__eyebrow {
  font-family: var(--font-serif);
  font-size: var(--fs-13);
  letter-spacing: 0.16em;
  color: var(--emerald-b);
}

.page-faq .faq-help__title {
  margin-top: 12px;
  font-size: clamp(24px, 5.4vw, 34px);
  font-weight: 900;
  color: var(--ivory);
}

.page-faq .faq-help__text {
  margin-top: 14px;
  max-width: 58ch;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: rgba(245, 239, 227, 0.78);
}

.page-faq .faq-help__grid {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.page-faq .help-card {
  padding: 20px 18px 22px;
  background: rgba(245, 239, 227, 0.06);
  border-left: 3px solid var(--gold);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-faq .help-card__num {
  display: block;
  font-family: var(--font-num);
  font-size: 26px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--gold);
}

.page-faq .help-card__title {
  margin-top: 10px;
  font-size: var(--fs-22);
  font-weight: 700;
  color: var(--ivory);
}

.page-faq .help-card__text {
  margin-top: 10px;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: rgba(245, 239, 227, 0.76);
}

.page-faq .help-card__link {
  display: inline-block;
  margin-top: 16px;
  font-family: var(--font-serif);
  font-size: var(--fs-13);
  letter-spacing: 0.1em;
  color: var(--emerald-b);
  text-decoration: none;
  border-bottom: 1px solid rgba(23, 168, 134, 0.5);
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-faq .help-card__link:hover {
  color: var(--gold-l);
  border-bottom-color: var(--gold-l);
}

.page-faq .help-card__link:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.page-faq .faq-help__more {
  margin-top: 22px;
  font-family: var(--font-serif);
  font-size: var(--fs-13);
  line-height: 1.95;
  letter-spacing: 0.06em;
  color: rgba(245, 239, 227, 0.62);
}

.page-faq .faq-help__more a {
  color: var(--gold-l);
  text-decoration: none;
  border-bottom: 1px solid rgba(239, 220, 168, 0.42);
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-faq .faq-help__more a:hover {
  color: var(--ivory);
  border-bottom-color: var(--ivory);
}

/* ---- 窄屏细节 ---- */
@media (max-width: 420px) {
  .page-faq .qa__body {
    padding-left: 30px;
  }

  .page-faq .qa__toggle {
    grid-template-columns: 24px minmax(0, 1fr) 18px;
    gap: 0 10px;
  }

  .page-faq .qa__q {
    font-size: var(--fs-16);
  }
}

/* ---- 平板 ---- */
@media (min-width: 720px) {
  .page-faq .faq-hero {
    padding-bottom: 82px;
  }

  .page-faq .index-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .faq-help__panel {
    padding: 44px 38px 46px;
  }
}

/* ---- 桌面 ---- */
@media (min-width: 1000px) {
  .page-faq .faq-hero {
    padding-top: 34px;
  }

  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: end;
    gap: 52px;
  }

  .page-faq .faq-hero__text {
    font-size: 17px;
  }

  .page-faq .index-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }

  .page-faq .index-card {
    padding: 24px 20px 26px;
  }

  .page-faq .sec-head__num {
    font-size: 56px;
  }

  .page-faq .faq-cat__split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 3fr);
    gap: 46px;
    align-items: start;
  }

  .page-faq .faq-help__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }
}

/* ---- 减少动态效果 ---- */
@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition-duration: 1ms !important;
  }
}