.page-faq {
  --faq-card-bg: #FFFFFF;
  --faq-border: #E0E0E0;
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-faq__container {
  width: min(var(--container), calc(100% - 32px));
  margin: 0 auto;
}

/* ===== Hero ===== */
.page-faq__hero {
  position: relative;
  overflow: hidden;
  background: var(--color-bg-deep);
  color: #FFFFFF;
  padding: 28px 0 88px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 48px), 0 100%);
}

.page-faq__hero-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 229, 255, 0.14) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.14) 1px, transparent 1px);
  background-size: 48px 48px;
  transform: skewY(-4deg) scale(1.15);
  pointer-events: none;
}

.page-faq__hero-bg::after {
  content: "";
  position: absolute;
  right: -8%;
  top: -20%;
  width: 55%;
  height: 80%;
  background: linear-gradient(115deg, transparent 0%, rgba(255, 77, 0, 0.55) 46%, rgba(255, 215, 0, 0.25) 48%, transparent 70%);
  transform: rotate(8deg);
}

.page-faq__breadcrumb {
  position: relative;
  z-index: 2;
  margin-bottom: 28px;
  color: rgba(255, 255, 255, 0.65);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-faq__breadcrumb .breadcrumb-link {
  color: rgba(255, 255, 255, 0.65);
  text-decoration-color: rgba(255, 255, 255, 0.3);
  text-underline-offset: 4px;
  transition: color var(--speed);
}

.page-faq__breadcrumb .breadcrumb-link:hover {
  color: var(--color-cyan);
}

.page-faq__breadcrumb .breadcrumb-sep {
  color: rgba(255, 255, 255, 0.35);
}

.page-faq__breadcrumb .breadcrumb-item {
  color: #FFFFFF;
  font-weight: 500;
}

.page-faq__hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 32px;
}

.page-faq__hero-copy h1 {
  font-family: var(--font-title);
  font-size: clamp(32px, 6vw, 56px);
  line-height: 1.08;
  margin: 14px 0 18px;
  color: #FFFFFF;
}

.page-faq__hero-copy h1::after {
  content: "";
  display: block;
  width: 84px;
  height: 4px;
  background: var(--color-primary);
  margin-top: 12px;
}

.page-faq__hero-lead {
  font-size: 15px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.78);
  max-width: 640px;
}

.page-faq__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq__hero .btn-ghost {
  border-color: rgba(255, 255, 255, 0.45);
  color: #FFFFFF;
}

.page-faq__hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  padding-top: 22px;
}

.page-faq__hero-stat {
  border-left: 2px solid var(--color-primary);
  padding: 2px 0 2px 12px;
}

.page-faq__hero-stat .stat-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1.2;
  color: var(--color-cyan);
}

.page-faq__hero-stat .stat-label {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
}

/* ===== 快速导航 ===== */
.page-faq__quicknav {
  position: relative;
  background: var(--color-surface);
  border-bottom: 1px solid var(--faq-border);
  margin-top: -4px;
}

.page-faq__quicknav-inner {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 18px 0;
}

.page-faq__quicktext {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.page-faq__quicktext svg {
  color: var(--color-primary);
  flex: 0 0 auto;
}

.page-faq__quicknav .filter-bar {
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq__quick-link {
  padding: 8px 14px;
  border: 1px solid var(--faq-border);
  border-radius: var(--radius);
  color: var(--color-text-body);
  font-size: 13px;
  text-decoration: none;
  background: var(--faq-card-bg);
  transition: border-color var(--speed), background var(--speed), color var(--speed);
}

.page-faq__quick-link:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ===== Section 通用 ===== */
.page-faq__section {
  padding: 40px 0 48px;
}

.page-faq__section--dark {
  background: var(--color-bg-deep);
  color: #FFFFFF;
}

.page-faq__section--white {
  background: #FFFFFF;
}

.page-faq__section--dark .page-faq__section-title-group h2 {
  color: #FFFFFF;
}

.page-faq__section--dark .page-faq__section-title-group p {
  color: rgba(255, 255, 255, 0.6);
}

.page-faq__section-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--faq-border);
  padding-bottom: 18px;
}

.page-faq__section--dark .page-faq__section-head {
  border-color: rgba(255, 255, 255, 0.14);
}

.page-faq__section-index {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-primary);
  background: rgba(255, 77, 0, 0.1);
  padding: 8px 12px;
  border-radius: var(--radius);
  white-space: nowrap;
}

.page-faq__section--dark .page-faq__section-index {
  background: rgba(255, 77, 0, 0.2);
}

.page-faq__section-title-group h2 {
  font-family: var(--font-title);
  font-size: 26px;
  line-height: 1.2;
  margin: 0 0 6px;
  color: var(--color-ink);
}

.page-faq__section-title-group p {
  font-size: 14px;
  color: var(--color-text-muted);
  margin: 0;
}

/* ===== 网格 ===== */
.page-faq__grid {
  display: grid;
  gap: 28px;
}

.page-faq__grid--split {
  grid-template-columns: 1fr;
}

.page-faq__grid--tv {
  grid-template-columns: 1fr;
}

/* ===== 折叠面板 ===== */
.page-faq__group {
  display: grid;
  gap: 10px;
}

.page-faq__item {
  background: var(--faq-card-bg);
  border: 1px solid var(--faq-border);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 1px 0 rgba(10, 26, 58, 0.04);
}

.page-faq__item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-ink);
  transition: color var(--speed);
}

.page-faq__item summary::-webkit-details-marker {
  display: none;
}

.page-faq__item summary:hover {
  color: var(--color-primary);
}

.page-faq__item summary::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
  color: var(--color-primary);
  transition: transform 0.25s ease;
}

.page-faq__item[open] summary::after {
  transform: rotate(45deg);
}

.page-faq__item[open] {
  border-color: var(--color-bg-deep);
  box-shadow: var(--shadow);
}

.page-faq__answer {
  padding: 0 18px 18px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--color-text-body);
  border-top: 1px dashed var(--faq-border);
}

.page-faq__answer p {
  margin: 14px 0 0;
}

.page-faq__answer strong {
  color: var(--color-primary);
  font-weight: 600;
}

.page-faq__answer a {
  color: var(--color-link);
  text-underline-offset: 4px;
}

.page-faq__item--dark {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(192, 192, 192, 0.18);
  border-left-color: var(--color-primary);
}

.page-faq__item--dark summary {
  color: #FFFFFF;
}

.page-faq__item--dark summary:hover {
  color: var(--color-cyan);
}

.page-faq__item--dark[open] {
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 8px 24px rgba(255, 255, 255, 0.06);
}

.page-faq__item--dark .page-faq__answer {
  color: rgba(255, 255, 255, 0.7);
  border-top-color: rgba(255, 255, 255, 0.12);
}

.page-faq__item--dark .page-faq__answer strong {
  color: var(--color-gold);
}

/* ===== 侧边卡 ===== */
.page-faq__side-card {
  background: var(--faq-card-bg);
  border: 1px solid var(--faq-border);
  border-radius: var(--radius);
  padding: 24px 20px;
  box-shadow: var(--shadow);
}

.page-faq__price-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 16px 0;
  border-bottom: 1px solid var(--faq-border);
}

.page-faq__price-name {
  font-size: 14px;
  color: var(--color-text-muted);
}

.page-faq__price-value {
  font-size: 32px;
  line-height: 1;
  color: var(--color-primary);
}

.page-faq__price-unit {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-left: 2px;
}

.page-faq__price-note {
  font-size: 13px;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin: 16px 0 20px;
}

.page-faq__price-note strong {
  color: var(--color-gold);
}

.page-faq__price-card .btn {
  width: 100%;
  justify-content: center;
}

.page-faq__coverage-num {
  margin: 18px 0;
}

.page-faq__coverage-value {
  display: block;
  font-size: 32px;
  line-height: 1;
  color: var(--color-bg-deep);
}

.page-faq__coverage-label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  color: var(--color-text-muted);
}

.page-faq__coverage-card .btn {
  margin-top: 8px;
  width: 100%;
  justify-content: center;
}

.page-faq__account-list {
  list-style: none;
  padding: 0;
  margin: 16px 0 20px;
  display: grid;
  gap: 10px;
}

.page-faq__account-list li {
  font-size: 14px;
  color: var(--color-text-body);
  padding-left: 20px;
  position: relative;
  line-height: 1.6;
}

.page-faq__account-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 10px;
  height: 2px;
  background: var(--color-primary);
}

.page-faq__account-card .btn {
  width: 100%;
  justify-content: center;
}

/* ===== 大屏图片 ===== */
.page-faq__figure {
  margin: 0;
  background: var(--color-bg-deep-2);
  border: 1px solid rgba(192, 192, 192, 0.18);
  border-radius: var(--radius);
  overflow: hidden;
}

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

.page-faq__figure figcaption {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.55);
  padding: 10px 12px;
  border-top: 1px solid rgba(192, 192, 192, 0.15);
}

/* ===== 联系支持 ===== */
.page-faq__support {
  background: var(--color-bg-deep);
  color: #FFFFFF;
  padding: 40px 0 56px;
}

.page-faq__support .page-faq__section-head {
  border-color: rgba(255, 255, 255, 0.14);
}

.page-faq__support .page-faq__section-title-group h2 {
  color: #FFFFFF;
}

.page-faq__support .page-faq__section-title-group p {
  color: rgba(255, 255, 255, 0.6);
}

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

.page-faq__contact-media {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(192, 192, 192, 0.18);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-faq__contact-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq__contact-list {
  display: grid;
  gap: 0;
}

.page-faq__contact-item {
  display: grid;
  grid-template-columns: 108px 1fr;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(192, 192, 192, 0.14);
}

.page-faq__contact-label {
  color: rgba(255, 255, 255, 0.55);
  font-size: 13px;
}

.page-faq__contact-value {
  color: #FFFFFF;
  font-size: 15px;
  word-break: break-all;
}

.page-faq__contact-note {
  margin-top: 20px;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 77, 0, 0.12);
  border-left: 3px solid var(--color-primary);
  padding: 12px 14px;
}

/* ===== Media Queries ===== */
@media (min-width: 600px) {
  .page-faq__hero-stat .stat-value {
    font-size: 28px;
  }
}

@media (min-width: 760px) {
  .page-faq__hero-grid {
    grid-template-columns: 1fr 360px;
    align-items: end;
    gap: 48px;
  }

  .page-faq__quicknav-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .page-faq__section-title-group h2 {
    font-size: 30px;
  }
}

@media (min-width: 960px) {
  .page-faq__section {
    padding: 64px 0 72px;
  }

  .page-faq__support {
    padding: 64px 0 88px;
  }

  .page-faq__section-title-group h2 {
    font-size: 34px;
  }

  .page-faq__section-title-group p {
    font-size: 15px;
  }

  .page-faq__grid--split {
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 48px;
    align-items: start;
  }

  .page-faq__grid--tv {
    grid-template-columns: 380px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq__contact-grid {
    grid-template-columns: 400px 1fr;
    gap: 56px;
    align-items: center;
  }
}