.page-faq {
  --faq-hero-pad: clamp(56px, 9vw, 112px) 0 clamp(44px, 7vw, 84px);
  --faq-cat-border: rgba(248, 244, 236, 0.26);
  position: relative;
}

/* ===== Hero ===== */
.page-faq .faq-hero {
  position: relative;
  background-color: var(--deep-blue);
  background-image:
    radial-gradient(circle at 8% 22%, rgba(0, 166, 81, 0.16) 0%, transparent 44%),
    radial-gradient(circle at 90% 84%, rgba(212, 175, 55, 0.15) 0%, transparent 36%);
  background-repeat: no-repeat;
  color: var(--paper-light);
  overflow: hidden;
  border-bottom: 4px solid var(--brand-green);
  padding: var(--faq-hero-pad);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(248, 244, 236, 0.2) 1px, transparent 1.4px);
  background-size: 26px 26px;
  opacity: 0.3;
  pointer-events: none;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 10px;
  background: linear-gradient(
    90deg,
    var(--brand-green) 0% 54%,
    var(--gold-accent) 54% 72%,
    var(--deep-blue) 72% 100%
  );
  transform: skewX(-24deg);
  transform-origin: bottom left;
  z-index: 1;
  pointer-events: none;
}

.page-faq .faq-hero-grid {
  position: relative;
  display: grid;
  gap: 32px;
  align-items: center;
}

.page-faq .faq-hero .breadcrumbs a,
.page-faq .faq-hero .breadcrumbs li {
  color: rgba(248, 244, 236, 0.66);
}

.page-faq .faq-hero .breadcrumbs [aria-current="page"] {
  color: var(--gold-bright);
}

.page-faq .faq-hero-title {
  margin: 18px 0 20px;
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 6vw, 3.8rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.01em;
  transform: skewX(-6deg);
}

.page-faq .faq-hero-title > span {
  display: block;
  transform: skewX(6deg);
}

.page-faq .faq-h1-sub {
  display: block;
  margin-top: 8px;
  color: var(--gold-bright);
  font-size: 0.56em;
  font-weight: 500;
  line-height: 1.35;
}

.page-faq .faq-hero-lead {
  max-width: 62ch;
  margin: 0 0 28px;
  color: rgba(248, 244, 236, 0.84);
  font-size: 1rem;
  line-height: 1.75;
}

.page-faq .faq-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0 0 26px;
}

.page-faq .faq-stat {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 10px 14px;
  background: rgba(30, 74, 111, 0.6);
  border: 1px solid rgba(248, 244, 236, 0.22);
}

.page-faq .faq-stat-num {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 600;
  line-height: 1;
  color: var(--brand-green);
}

.page-faq .faq-stat-label {
  font-size: 0.86rem;
  color: rgba(248, 244, 236, 0.72);
}

.page-faq .faq-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 28px;
}

.page-faq .faq-hero-tags .tag {
  border-color: rgba(248, 244, 236, 0.35);
  color: var(--paper-light);
  transition: border-color var(--duration) var(--ease-out-expo), background-color var(--duration) var(--ease-out-expo);
}

.page-faq .faq-hero-tags .tag:hover,
.page-faq .faq-hero-tags .tag:focus-visible {
  border-color: var(--gold-bright);
  background: rgba(212, 175, 55, 0.14);
}

.page-faq .faq-hero-tags .tag-green {
  border-color: var(--brand-green);
  background: rgba(0, 166, 81, 0.14);
  color: var(--brand-green);
}

.page-faq .faq-hero-foot {
  max-width: 58ch;
  margin: 0;
  padding-top: 18px;
  border-top: 1px dashed rgba(248, 244, 236, 0.22);
  font-size: 0.85rem;
  line-height: 1.7;
  color: rgba(248, 244, 236, 0.62);
}

.page-faq .faq-hero .faq-hero-art {
  width: 100%;
  max-width: 380px;
  margin-inline: auto;
  border: 3px solid var(--gold-accent);
  box-shadow: var(--shadow-hard-dark);
  transform: rotate(2deg);
  transition: transform var(--duration) var(--ease-out-expo);
}

.page-faq .faq-hero .faq-hero-art:hover {
  transform: rotate(0deg);
}

/* ===== 热门问题 ===== */
.page-faq .faq-hot {
  background: var(--paper-light);
}

.page-faq .faq-hot .section-head {
  margin-bottom: 36px;
}

.page-faq .faq-hot-grid {
  display: grid;
  gap: 28px;
}

.page-faq .faq-media-shot {
  width: 100%;
  border: 3px solid var(--ink-dark);
  box-shadow: var(--shadow-hard);
  transform: skewY(-1deg);
}

.page-faq .faq-media-shot img {
  filter: saturate(0.9) contrast(1.06);
}

.page-faq .faq-hot-panel {
  display: grid;
  gap: 14px;
}

.page-faq .faq-acc {
  border: 2px solid var(--ink-dark);
  background: #ffffff;
  box-shadow: 4px 4px 0 rgba(10, 37, 64, 0.08);
  transition: box-shadow var(--duration) var(--ease-out-expo), transform var(--duration) var(--ease-out-expo), background-color var(--duration) var(--ease-out-expo);
}

.page-faq .faq-acc:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgba(10, 37, 64, 0.12);
}

.page-faq .accordion-trigger {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 14px 16px;
  border: 0;
  background: transparent;
  cursor: pointer;
  text-align: left;
  font: inherit;
  color: var(--ink-dark);
}

.page-faq .faq-q-num {
  display: inline-grid;
  place-items: center;
  flex: none;
  min-width: 30px;
  height: 30px;
  padding: 0 4px;
  font-size: 0.82rem;
  font-weight: 600;
  color: #ffffff;
  background: var(--brand-green);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%);
}

.page-faq .faq-q-text {
  flex: 1;
  min-width: 0;
  font-size: 0.96rem;
  font-weight: 600;
  line-height: 1.5;
}

.page-faq .faq-q-toggle {
  flex: none;
  position: relative;
  width: 22px;
  height: 22px;
  color: var(--deep-blue);
}

.page-faq .faq-q-toggle::before,
.page-faq .faq-q-toggle::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 16px;
  height: 2px;
  background: currentColor;
  transform: translate(-50%, -50%);
  transition: transform var(--duration) var(--ease-out-expo);
}

.page-faq .faq-q-toggle::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.page-faq .faq-acc[data-open] .faq-q-toggle::after,
.page-faq .faq-acc .accordion-trigger[aria-expanded="true"] .faq-q-toggle::after {
  transform: translate(-50%, -50%) rotate(0deg);
}

.page-faq .accordion-panel-inner {
  padding: 0 16px 16px 58px;
}

.page-faq .accordion-panel-inner p {
  position: relative;
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.7;
  color: #4a4a46;
}

.page-faq .accordion-panel-inner p::before {
  content: "";
  position: absolute;
  left: -18px;
  top: 0.45em;
  width: 10px;
  height: 10px;
  background: var(--gold-accent);
}

/* ===== 问题分类 ===== */
.page-faq .faq-cats {
  position: relative;
  background: var(--deep-blue);
  color: var(--paper-light);
  overflow: hidden;
}

.page-faq .faq-cats::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 160px;
  height: 160px;
  background: linear-gradient(135deg, transparent 45%, rgba(0, 166, 81, 0.18) 45% 55%, transparent 55%);
  pointer-events: none;
}

.page-faq .faq-cats-head {
  margin-bottom: 40px;
}

.page-faq .faq-cats-layout {
  position: relative;
  display: grid;
  gap: 36px;
}

.page-faq .faq-tree {
  position: relative;
  padding: 8px 0 8px 30px;
}

.page-faq .faq-tree::before {
  content: "";
  position: absolute;
  left: 10px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--brand-green), var(--gold-accent) 60%, transparent);
}

.page-faq .faq-tree-title {
  margin-bottom: 14px;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: var(--gold-bright);
}

.page-faq .faq-tree nav {
  display: grid;
  gap: 6px;
}

.page-faq .faq-tree-node {
  position: relative;
  display: grid;
  grid-template-columns: 44px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 12px 12px 12px 0;
  color: var(--paper-light);
  text-decoration: none;
  border: 2px solid transparent;
  transition: border-color var(--duration) var(--ease-out-expo), background-color var(--duration) var(--ease-out-expo);
}

.page-faq .faq-tree-node::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 50%;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand-green);
  box-shadow: 0 0 0 3px rgba(0, 166, 81, 0.24);
  transform: translateY(-50%);
}

.page-faq .faq-tree-node:hover,
.page-faq .faq-tree-node:focus-visible {
  border-color: var(--gold-accent);
  background: rgba(212, 175, 55, 0.08);
}

.page-faq .faq-tree-num {
  font-family: var(--font-mono);
  color: var(--gold-bright);
}

.page-faq .faq-tree-name {
  font-weight: 500;
  font-size: 0.96rem;
}

.page-faq .faq-tree-count {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 2px 8px;
  background: rgba(248, 244, 236, 0.1);
  border: 1px solid rgba(248, 244, 236, 0.18);
}

.page-faq .faq-tree-note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px dashed rgba(248, 244, 236, 0.22);
  font-size: 0.84rem;
  line-height: 1.6;
  color: rgba(248, 244, 236, 0.6);
}

.page-faq .faq-cats-acc {
  display: grid;
  gap: 24px;
}

.page-faq .faq-cat-block {
  padding: clamp(16px, 3vw, 24px);
  border: 2px solid var(--faq-cat-border);
  background: rgba(30, 74, 111, 0.32);
  transition: transform var(--duration) var(--ease-out-expo), border-color var(--duration) var(--ease-out-expo);
}

.page-faq .faq-cat-block:hover {
  border-color: var(--brand-green);
  transform: translateY(-2px);
}

.page-faq .faq-cat-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-bottom: 14px;
  margin-bottom: 16px;
  border-bottom: 2px dashed rgba(248, 244, 236, 0.2);
}

.page-faq .faq-cat-title {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-faq .faq-cat-title h3 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.3;
}

.page-faq .faq-cat-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: rgba(248, 244, 236, 0.7);
}

.page-faq .faq-cat-progress {
  display: block;
  width: 72px;
  height: 6px;
  background: rgba(248, 244, 236, 0.14);
  overflow: hidden;
}

.page-faq .faq-cat-progress b {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--brand-green);
}

.page-faq .faq-acc-wrap {
  display: grid;
  gap: 12px;
}

.page-faq .faq-cats .faq-acc {
  border-color: rgba(248, 244, 236, 0.32);
  background: rgba(30, 74, 111, 0.32);
  box-shadow: none;
}

.page-faq .faq-cats .faq-acc[data-open],
.page-faq .faq-cats .faq-acc .accordion-trigger[aria-expanded="true"] {
  border-color: var(--brand-green);
  background: rgba(0, 166, 81, 0.14);
}

.page-faq .faq-cats .accordion-trigger {
  color: var(--paper-light);
}

.page-faq .faq-cats .faq-q-text {
  font-weight: 500;
}

.page-faq .faq-cats .faq-q-num {
  color: var(--gold-bright);
  background: var(--deep-blue);
  outline: 1px solid rgba(248, 244, 236, 0.18);
  outline-offset: -1px;
}

.page-faq .faq-cats .faq-q-toggle {
  color: var(--gold-bright);
}

.page-faq .faq-cats .accordion-panel-inner p {
  color: rgba(248, 244, 236, 0.84);
}

.page-faq .faq-cats .accordion-panel-inner p::before {
  background: var(--brand-green);
}

/* ===== 联系支持 ===== */
.page-faq .faq-support {
  background: var(--paper-light);
}

.page-faq .faq-support-card {
  position: relative;
  display: grid;
  gap: 28px;
  padding: clamp(26px, 5vw, 52px);
  background: linear-gradient(135deg, var(--brand-green), var(--green-deep));
  color: var(--paper-light);
  border: 3px solid var(--gold-accent);
  border-radius: 2px 28px 2px 28px;
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

.page-faq .faq-support-card::after {
  content: "";
  position: absolute;
  right: -3rem;
  bottom: -4rem;
  width: 16rem;
  height: 16rem;
  border: 3px solid rgba(255, 255, 255, 0.22);
  transform: rotate(24deg);
  pointer-events: none;
}

.page-faq .faq-support-card h2 {
  margin: 10px 0 14px;
  font-size: clamp(1.7rem, 3.6vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
}

.page-faq .faq-support-card > .faq-support-copy > p {
  max-width: 58ch;
  margin: 0 0 22px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.9);
}

.page-faq .faq-support-contact {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-support-contact li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.94);
}

.page-faq .faq-support-contact .contact-label {
  min-width: 4em;
  color: rgba(255, 255, 255, 0.72);
}

.page-faq .faq-support-actions {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.page-faq .faq-support-actions .btn {
  text-align: center;
}

.page-faq .faq-support-btn-blue {
  background: var(--deep-blue);
  color: var(--paper-light);
  border: 2px solid transparent;
  transition: border-color var(--duration) var(--ease-out-expo), transform var(--duration) var(--ease-out-expo);
}

.page-faq .faq-support-btn-blue:hover,
.page-faq .faq-support-btn-blue:focus-visible {
  border-color: var(--gold-bright);
  transform: translateY(-2px);
}

.page-faq .faq-support-link {
  padding: 10px 4px;
  color: var(--paper-light);
  font-size: 0.92rem;
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: color var(--duration) var(--ease-out-expo);
}

.page-faq .faq-support-link:hover,
.page-faq .faq-support-link:focus-visible {
  color: var(--gold-bright);
}

/* ===== 响应式 ===== */
@media (max-width: 719px) {
  .page-faq .faq-hero-art {
    max-width: 300px;
  }

  .page-faq .faq-media-shot {
    max-width: 520px;
    margin-inline: auto;
  }

  .page-faq .faq-support-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .page-faq .faq-support-actions .btn {
    width: 100%;
  }
}

@media (min-width: 720px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: 1.4fr 0.8fr;
  }

  .page-faq .faq-hot-grid {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: start;
  }

  .page-faq .faq-support-card {
    grid-template-columns: 1fr auto;
    align-items: center;
  }

  .page-faq .faq-support-actions {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-cats-layout {
    grid-template-columns: 280px 1fr;
    gap: 48px;
  }

  .page-faq .faq-tree {
    position: sticky;
    top: calc(var(--header-height) + 24px);
    align-self: start;
    padding: 20px 20px 20px 28px;
    border: 2px solid rgba(248, 244, 236, 0.26);
    border-left-width: 0;
    background: rgba(30, 74, 111, 0.24);
  }

  .page-faq .faq-tree::before {
    top: 20px;
    bottom: 20px;
  }
}