.page-faq {
  --faq-rule: rgba(6, 35, 63, 0.10);
  --faq-rule-strong: rgba(6, 35, 63, 0.20);
  --faq-glass: rgba(201, 251, 242, 0.48);
  background: var(--c-white);
  color: var(--c-ink);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 4vw, 34px) 0 clamp(68px, 9vw, 116px);
  color: var(--c-white);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(34, 224, 196, 0.18), transparent 62%),
    linear-gradient(158deg, var(--c-900) 0%, #093157 58%, var(--c-700) 100%);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.07) 0 1px, transparent 1px 64px);
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: clamp(28px, 5vw, 62px);
  background: var(--c-white);
  clip-path: polygon(0 100%, 100% 0, 100% 100%);
}

.page-faq .faq-hero .container {
  position: relative;
  z-index: 1;
}

.page-faq .breadcrumbs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin: 0 0 clamp(24px, 4vw, 44px);
  padding: 0;
  list-style: none;
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.62);
}

.page-faq .breadcrumbs__list a {
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.28);
}

.page-faq .breadcrumbs__list a:hover,
.page-faq .breadcrumbs__list a:focus-visible {
  color: var(--c-cyan);
  border-bottom-color: var(--c-cyan);
}

.page-faq .breadcrumbs__list li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(255, 255, 255, 0.38);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
}

.page-faq .faq-hero__title {
  margin: 14px 0 0;
  font-size: var(--fs-1);
  font-weight: 900;
  line-height: var(--lh-tight);
  letter-spacing: -0.02em;
  color: var(--c-white);
}

.page-faq .faq-hero__lead {
  max-width: 56ch;
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: rgba(255, 255, 255, 0.80);
}

.page-faq .faq-hero .eyebrow {
  color: var(--c-orange-soft);
}

.page-faq .faq-index {
  align-self: end;
  padding-top: 14px;
  border-top: 2px solid var(--c-orange);
}

.page-faq .faq-index .label-mono {
  color: rgba(255, 255, 255, 0.52);
}

.page-faq .faq-index__list {
  display: grid;
  gap: 2px;
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 2px;
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.84);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.page-faq .faq-index__list a i {
  font-style: normal;
  font-family: var(--font-mono);
  color: var(--c-cyan);
  transition: transform var(--dur) var(--ease);
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--c-white);
  padding-left: 10px;
}

.page-faq .faq-index__list a:hover i,
.page-faq .faq-index__list a:focus-visible i {
  transform: translateX(4px);
}

/* ---------- 主体区块 ---------- */
.page-faq .faq-body {
  padding-bottom: clamp(40px, 6vw, 72px);
}

.page-faq .faq-block {
  padding-top: clamp(36px, 5.4vw, 68px);
}

.page-faq .faq-block__head {
  position: relative;
  margin-bottom: clamp(20px, 3vw, 34px);
  padding: 16px 0 0;
  border-top: 1px solid var(--c-orange);
}

.page-faq .faq-block__range {
  display: block;
  margin: 0 0 8px;
  color: var(--c-orange);
}

.page-faq .faq-block__title {
  margin: 0;
  font-size: var(--fs-2);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--c-ink);
}

.page-faq .faq-block__note {
  max-width: 62ch;
  margin: 12px 0 0;
  font-size: var(--fs-sm);
  line-height: var(--lh-body);
  color: var(--c-muted);
}

.page-faq .faq-block__note a {
  color: var(--c-700);
  text-decoration: none;
  border-bottom: 1px solid var(--c-400);
}

.page-faq .faq-block__note a:hover,
.page-faq .faq-block__note a:focus-visible {
  color: var(--c-orange);
  border-bottom-color: var(--c-orange);
}

/* 进度环 */
.page-faq .faq-ring {
  display: block;
  width: 62px;
  height: 62px;
  margin-top: 16px;
}

.page-faq .faq-ring circle {
  fill: none;
  stroke-width: 7;
  stroke-linecap: round;
}

.page-faq .faq-ring__track {
  stroke: rgba(6, 35, 63, 0.10);
}

.page-faq .faq-ring__seg {
  stroke-dasharray: 94 220;
  transform: rotate(-90deg);
  transform-origin: 60px 60px;
}

.page-faq .faq-ring__seg--1 { stroke: var(--c-orange); }
.page-faq .faq-ring__seg--2 { stroke: var(--c-cyan); stroke-dashoffset: -105; }
.page-faq .faq-ring__seg--3 { stroke: var(--c-400); stroke-dashoffset: -210; }

.page-faq .faq-ring__num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 500;
  fill: var(--c-ink);
}

/* ---------- 步骤区 ---------- */
.page-faq .faq-steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.4vw, 40px);
  align-items: start;
}

.page-faq .faq-steps__visual {
  margin: 0;
  border: 1px solid var(--faq-rule);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--c-paper);
}

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

.page-faq .faq-steps__visual figcaption {
  padding: 10px 14px 12px;
  font-size: var(--fs-xs);
  line-height: 1.7;
  color: var(--c-muted);
  border-top: 1px solid var(--faq-rule);
}

/* ---------- 手风琴条目 ---------- */
.page-faq .faq-items {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  position: relative;
  background: var(--c-white);
  border: 1px solid var(--faq-rule);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-faq .faq-steps__list .faq-item + .faq-item {
  margin-top: 10px;
}

.page-faq .faq-item:hover {
  border-color: rgba(255, 106, 19, 0.5);
  box-shadow: var(--shadow-lift);
}

.page-faq .faq-item[open] {
  border-color: rgba(255, 106, 19, 0.62);
}

.page-faq .faq-item__head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 15px 14px;
  cursor: pointer;
  list-style: none;
  background: var(--c-white);
  transition: background var(--dur) var(--ease);
}

.page-faq .faq-item__head::-webkit-details-marker { display: none; }
.page-faq .faq-item__head::marker { content: ""; }

.page-faq .faq-item__head:hover {
  background: var(--c-paper);
}

.page-faq .faq-item__head:focus-visible {
  outline: 2px solid var(--c-orange);
  outline-offset: -2px;
}

.page-faq .faq-item__no {
  flex: 0 0 auto;
  min-width: 2.6em;
  padding: 4px 5px;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-align: center;
  color: var(--c-muted);
  border: 1px solid var(--faq-rule-strong);
  border-radius: var(--radius);
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-faq .faq-item[open] .faq-item__no {
  color: var(--c-900);
  background: var(--c-orange);
  border-color: var(--c-orange);
}

.page-faq .faq-item__title {
  flex: 1 1 auto;
  font-size: var(--fs-5);
  font-weight: 700;
  line-height: 1.45;
  color: var(--c-ink);
}

.page-faq .faq-item__icon {
  position: relative;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
}

.page-faq .faq-item__icon::before,
.page-faq .faq-item__icon::after {
  content: "";
  position: absolute;
  background: var(--c-400);
  border-radius: 1px;
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.page-faq .faq-item__icon::before { top: 7px; left: 0; width: 16px; height: 2px; }
.page-faq .faq-item__icon::after { top: 0; left: 7px; width: 2px; height: 16px; }

.page-faq .faq-item[open] .faq-item__icon::before { background: var(--c-orange); }
.page-faq .faq-item[open] .faq-item__icon::after { transform: rotate(90deg); opacity: 0; }

.page-faq .faq-item__panel {
  position: relative;
  border-top: 1px solid var(--faq-rule);
  background: linear-gradient(180deg, var(--faq-glass) 0%, var(--c-paper) 92%);
}

.page-faq .faq-item__body {
  padding: 16px 16px 18px;
  border-left: 3px solid var(--c-cyan);
}

.page-faq .faq-item__body p {
  margin: 0 0 10px;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--c-ink);
}

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

.page-faq .faq-item__body a {
  color: var(--c-700);
  text-decoration: none;
  border-bottom: 1px solid var(--c-400);
}

.page-faq .faq-item__body a:hover,
.page-faq .faq-item__body a:focus-visible {
  color: var(--c-orange);
  border-bottom-color: var(--c-orange);
}

/* 表格 */
.page-faq .faq-table {
  width: 100%;
  margin-top: 14px;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  letter-spacing: 0.02em;
}

.page-faq .faq-table caption {
  padding-bottom: 8px;
  text-align: left;
  color: var(--c-muted);
}

.page-faq .faq-table th,
.page-faq .faq-table td {
  padding: 9px 10px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--faq-rule);
}

.page-faq .faq-table th {
  width: 42%;
  font-weight: 500;
  color: var(--c-muted);
}

.page-faq .faq-table td {
  color: var(--c-ink);
}

/* ---------- 页尾引导 ---------- */
.page-faq .faq-help {
  position: relative;
  overflow: hidden;
  margin-top: clamp(40px, 6vw, 76px);
  padding: clamp(56px, 8vw, 96px) 0 clamp(40px, 6vw, 72px);
  background:
    radial-gradient(90% 100% at 100% 100%, rgba(255, 106, 19, 0.22), transparent 58%),
    linear-gradient(120deg, var(--c-900) 0%, #0B3358 70%, var(--c-700) 100%);
  color: var(--c-white);
}

.page-faq .faq-help::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: clamp(22px, 4vw, 48px);
  background: var(--c-white);
  clip-path: polygon(0 0, 100% 0, 0 100%);
}

.page-faq .faq-help__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

.page-faq .faq-help__label {
  display: block;
  margin: 0 0 10px;
  color: var(--c-orange-soft);
}

.page-faq .faq-help__title {
  margin: 0;
  font-size: var(--fs-2);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--c-white);
}

.page-faq .faq-help__copy p {
  max-width: 54ch;
  margin: 14px 0 0;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: rgba(255, 255, 255, 0.80);
}

.page-faq .faq-help__copy .btn {
  margin-top: clamp(20px, 3vw, 28px);
}

.page-faq .faq-help__visual {
  margin: 0;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.06);
}

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

/* ---------- 中等屏幕 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-item__head {
    padding: 17px 20px;
    gap: 16px;
  }

  .page-faq .faq-item__body {
    padding: 18px 22px 22px;
  }

  .page-faq .faq-block__head {
    padding-right: 88px;
    padding-top: 18px;
  }

  .page-faq .faq-ring {
    position: absolute;
    top: 18px;
    right: 0;
    margin-top: 0;
  }

  .page-faq .faq-help__visual img {
    aspect-ratio: 3 / 2;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
    gap: clamp(32px, 5vw, 64px);
  }

  .page-faq .faq-steps {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  }

  .page-faq .faq-steps__visual {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: clamp(32px, 5vw, 64px);
  }

  .page-faq .faq-block__title {
    font-size: var(--fs-2);
  }

  .page-faq .faq-items {
    gap: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__list a,
  .page-faq .faq-index__list a i,
  .page-faq .faq-item,
  .page-faq .faq-item__head,
  .page-faq .faq-item__no,
  .page-faq .faq-item__icon::before,
  .page-faq .faq-item__icon::after {
    transition: none;
  }
}