.page-faq {
  --faq-line: rgba(44, 51, 88, .5);
  padding-top: var(--header-h);
  padding-bottom: clamp(40px, 6vw, 88px);
  background:
    radial-gradient(1150px 680px at 86% -12%, rgba(43, 168, 196, .15), transparent 60%),
    radial-gradient(720px 500px at -8% 10%, rgba(61, 240, 138, .075), transparent 62%),
    var(--night);
  color: var(--ink);
  overflow-x: hidden;
}

/* ---------- 面包屑 ---------- */
.page-faq .crumbs {
  padding-top: clamp(16px, 3vw, 28px);
  font-size: 13px;
}
.page-faq .crumbs ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  color: var(--ash);
  letter-spacing: .02em;
}
.page-faq .crumbs li {
  display: flex;
  align-items: center;
}
.page-faq .crumbs li + li::before {
  content: "/";
  margin: 0 10px;
  color: var(--edge);
}
.page-faq .crumbs a {
  color: var(--ash);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .25s var(--ease), border-color .25s var(--ease);
}
.page-faq .crumbs a:hover,
.page-faq .crumbs a:focus-visible {
  color: var(--pulse);
  border-color: var(--pulse);
}
.page-faq .crumbs a[aria-current="page"] {
  color: var(--headline);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-head {
  padding: clamp(24px, 5vw, 56px) 0 clamp(30px, 5vw, 60px);
}
.page-faq .faq-head__inner {
  display: grid;
  gap: clamp(22px, 3.5vw, 44px);
  align-items: end;
}
.page-faq .faq-head__lead {
  min-width: 0;
}
.page-faq .faq-head .eyebrow {
  margin: 0 0 14px;
}
.page-faq h1 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(32px, 7vw, 58px);
  line-height: 1.05;
  letter-spacing: -.015em;
  color: var(--headline);
  margin: 0 0 18px;
  max-width: 20ch;
}
.page-faq .faq-head__deck {
  margin: 0;
  max-width: 58ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--ink);
}

.page-faq .faq-side {
  border: 1px solid var(--edge);
  border-left: 3px solid var(--pulse);
  border-radius: var(--radius-lg);
  background: var(--panel);
  padding: 18px 20px 20px;
  box-shadow: var(--shadow-soft);
  min-width: 0;
}
.page-faq .faq-side__title {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ash);
}
.page-faq .faq-side__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--faq-line);
  font-size: 14px;
}
.page-faq .faq-side__row:last-of-type {
  border-bottom: 0;
}
.page-faq .faq-side__key {
  color: var(--ash);
  flex: none;
}
.page-faq .faq-side__val {
  font-family: var(--font-mono);
  color: var(--headline);
  text-align: right;
}

.page-faq .faq-jump {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 16px;
  padding: 12px 16px;
  border: 1px solid var(--edge);
  border-radius: 999px;
  background: var(--stand);
  color: var(--ash);
  font-size: 14px;
  text-decoration: none;
  transition: color .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
}
.page-faq .faq-jump:hover,
.page-faq .faq-jump:focus-visible {
  color: var(--headline);
  border-color: var(--lake);
  background: rgba(43, 168, 196, .09);
}
.page-faq .faq-jump__mark {
  position: relative;
  width: 13px;
  height: 13px;
  flex: none;
}
.page-faq .faq-jump__mark::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 1.5px solid var(--lake);
}
.page-faq .faq-jump__mark::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 1px;
  width: 5px;
  height: 1.5px;
  background: var(--lake);
  transform: rotate(45deg);
  transform-origin: right center;
}

/* ---------- 区块基础 ---------- */
.page-faq .section {
  padding: clamp(32px, 5.5vw, 66px) 0;
}
.page-faq .section-head {
  margin-bottom: clamp(22px, 3vw, 36px);
}

/* ---------- 三步自检 ---------- */
.page-faq .check-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}
.page-faq .check-flow__step {
  position: relative;
  padding: 22px 20px;
  border: 1px solid var(--edge);
  border-radius: var(--radius-lg);
  background: var(--panel);
  box-shadow: var(--shadow-soft);
  min-width: 0;
}
.page-faq .check-flow__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--edge);
  background: var(--stand);
  color: var(--pulse);
  font-size: 13px;
  letter-spacing: .04em;
  margin-bottom: 14px;
}
.page-faq .check-flow__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 20px;
  line-height: 1.28;
  letter-spacing: .005em;
  color: var(--headline);
}
.page-faq .check-flow__text {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--ink);
}

/* ---------- 判断标准 ---------- */
.page-faq .rule-note {
  margin: 0;
  padding: 9px 12px;
  border-left: 2px solid var(--lake);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: rgba(43, 168, 196, .08);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ash);
}
.page-faq .rule-note__label {
  display: inline-block;
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--lake);
}

/* ---------- 图片 ---------- */
.page-faq .faq-shot {
  margin: clamp(26px, 3.5vw, 40px) 0 0;
  border: 1px solid var(--edge);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--stand);
}
.page-faq .faq-shot img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-faq .faq-shot figcaption {
  padding: 11px 16px;
  border-top: 1px solid var(--edge);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .03em;
  color: var(--ash);
}
.page-faq .faq-shot--tall {
  max-width: min(340px, 100%);
  margin-left: 0;
  margin-right: auto;
}

/* ---------- 筛选 ---------- */
.page-faq .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-bottom: clamp(18px, 2.6vw, 28px);
}
.page-faq .filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 16px;
  border: 1px solid var(--edge);
  border-radius: 999px;
  background: transparent;
  color: var(--ash);
  font-family: var(--font-body);
  font-size: 13.5px;
  line-height: 1;
  cursor: pointer;
  transition: color .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
}
.page-faq .filter-btn:hover {
  color: var(--headline);
  border-color: var(--lake);
}
.page-faq .filter-btn[aria-pressed="true"] {
  color: var(--night);
  background: var(--pulse);
  border-color: var(--pulse);
  font-weight: 600;
}
.page-faq .filter-count {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ash);
  background: rgba(168, 176, 200, .16);
  padding: 2px 7px;
  border-radius: 999px;
}
.page-faq .filter-btn[aria-pressed="true"] .filter-count {
  color: var(--night);
  background: rgba(10, 14, 42, .2);
}
.page-faq .filter-empty {
  margin: 22px 0 0;
  padding: 16px 18px;
  border: 1px dashed var(--edge);
  border-radius: var(--radius);
  font-size: 14px;
  color: var(--ash);
}
.page-faq [data-filter-empty][hidden] {
  display: none;
}

/* ---------- 折叠条目 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 14px;
}
.page-faq .faq-item {
  position: relative;
  border: 1px solid var(--edge);
  border-radius: var(--radius-lg);
  background: var(--panel);
  overflow: hidden;
  transition: border-color .3s var(--ease);
}
.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--edge);
  transition: background .35s var(--ease), box-shadow .35s var(--ease);
}
.page-faq .faq-item[open] {
  border-color: rgba(61, 240, 138, .28);
}
.page-faq .faq-item[open]::before {
  background: var(--pulse);
  box-shadow: 0 0 16px var(--glow-green);
}

.page-faq .faq-item__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  padding: 17px 20px 17px 24px;
  cursor: pointer;
  list-style: none;
  transition: background .25s var(--ease);
}
.page-faq .faq-item__summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item__summary::marker {
  content: "";
}
.page-faq .faq-item__summary:hover {
  background: rgba(43, 168, 196, .06);
}
.page-faq .faq-item__summary:focus-visible {
  outline: 2px solid var(--lake);
  outline-offset: -2px;
}
.page-faq .faq-item__index {
  flex: none;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--score);
}
.page-faq .faq-item__title {
  flex: 1 1 200px;
  min-width: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(17px, 2.4vw, 21px);
  line-height: 1.3;
  letter-spacing: .005em;
  color: var(--headline);
}
.page-faq .faq-item__summary .status {
  flex: none;
}
.page-faq .faq-item__summary::after {
  content: "";
  flex: none;
  width: 8px;
  height: 8px;
  border-right: 1.5px solid var(--ash);
  border-bottom: 1.5px solid var(--ash);
  transform: rotate(45deg);
  transition: transform .3s var(--ease), border-color .3s var(--ease);
  margin-left: 2px;
}
.page-faq .faq-item[open] .faq-item__summary::after {
  transform: rotate(-135deg);
  border-color: var(--pulse);
}

.page-faq .faq-item__body {
  padding: 16px 20px 24px 24px;
  border-top: 1px solid var(--edge);
}
.page-faq .faq-item__intro {
  margin: 0 0 6px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink);
}

/* ---------- 步骤 ---------- */
.page-faq .steps {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}
.page-faq .steps__item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding: 15px 0;
  border-top: 1px dashed var(--faq-line);
}
.page-faq .steps__item:first-child {
  border-top: 0;
  padding-top: 4px;
}
.page-faq .steps__num {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--flag);
  padding-top: 3px;
}
.page-faq .steps__body {
  min-width: 0;
}
.page-faq .steps__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--ink);
}
.page-faq .steps__text + .rule-note {
  margin-top: 10px;
}

.page-faq .faq-item__body .callout {
  margin-top: 18px;
}
.page-faq .faq-inline-note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--edge);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--ash);
}

/* ---------- 客服准备 ---------- */
.page-faq .prep-grid {
  display: grid;
  gap: clamp(22px, 3vw, 38px);
}
.page-faq .prep-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-faq .prep-list__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid var(--edge);
  border-radius: var(--radius);
  background: var(--panel);
}
.page-faq .prep-list__num {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--lake);
  padding-top: 3px;
}
.page-faq .prep-list__item h3 {
  margin: 0 0 5px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16.5px;
  line-height: 1.35;
  letter-spacing: .01em;
  color: var(--headline);
}
.page-faq .prep-list__item p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--ash);
}

.page-faq .prep-contact {
  border: 1px solid var(--edge);
  border-left: 3px solid var(--score);
  border-radius: var(--radius-lg);
  background: var(--panel-strong);
  padding: 22px 22px 24px;
  box-shadow: var(--shadow-soft);
  min-width: 0;
}
.page-faq .prep-contact__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ash);
}
.page-faq .prep-contact dl {
  margin: 0 0 16px;
  display: grid;
  gap: 11px;
}
.page-faq .prep-contact__row {
  display: grid;
  gap: 3px;
}
.page-faq .prep-contact dt {
  font-size: 12.5px;
  letter-spacing: .04em;
  color: var(--ash);
}
.page-faq .prep-contact dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--headline);
  word-break: break-word;
}
.page-faq .prep-contact__note {
  margin: 0;
  padding-top: 14px;
  border-top: 1px solid var(--edge);
  font-size: 13px;
  line-height: 1.78;
  color: var(--ash);
}

.page-faq .faq-foot-note {
  margin: clamp(24px, 3vw, 36px) 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--ash);
}
.page-faq .faq-foot-note a {
  color: var(--lake);
  text-decoration: none;
  border-bottom: 1px solid var(--glow-lake);
  transition: color .25s var(--ease), border-color .25s var(--ease);
}
.page-faq .faq-foot-note a:hover,
.page-faq .faq-foot-note a:focus-visible {
  color: var(--pulse);
  border-color: var(--pulse);
}

.page-faq .prose a,
.page-faq p a {
  color: var(--lake);
}

/* ---------- 小屏微调 ---------- */
@media (max-width: 420px) {
  .page-faq .faq-item__summary {
    padding: 15px 16px 15px 20px;
  }
  .page-faq .faq-item__body {
    padding: 14px 16px 20px 20px;
  }
  .page-faq .steps__item {
    grid-template-columns: 26px minmax(0, 1fr);
    gap: 10px;
  }
  .page-faq .check-flow__step {
    padding: 20px 16px;
  }
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 640px) {
  .page-faq .prep-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-faq .faq-head__inner {
    grid-template-columns: minmax(0, 1.5fr) minmax(280px, .85fr);
  }
  .page-faq .check-flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 34px;
  }
  .page-faq .check-flow__step:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 41px;
    right: -34px;
    width: 34px;
    border-top: 1px dashed var(--edge);
  }
  .page-faq .prep-grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, .8fr);
    align-items: start;
  }
}

@media (min-width: 1180px) {
  .page-faq .faq-item__body {
    padding: 18px 28px 28px 30px;
  }
  .page-faq .check-flow__step {
    padding: 26px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item::before,
  .page-faq .faq-item__summary::after,
  .page-faq .filter-btn,
  .page-faq .faq-jump {
    transition: none;
  }
}