/* ========== 支持中心 FAQ 页面专属样式 ========== */
.page-faq {
  --faq-panel-white: #ffffff;
  --faq-soft-line: rgba(11, 29, 58, 0.1);
  --faq-hero-padding: 32px 22px 44px;
}

/* ---------- 首屏框景 ---------- */
.page-faq .faq-hero-wrap {
  background: var(--night-blue);
  padding: 96px 0 56px;
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero-wrap::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 85% 15%, rgba(122, 92, 255, 0.16), transparent 42%),
    radial-gradient(circle at 10% 95%, rgba(0, 229, 255, 0.12), transparent 46%);
  pointer-events: none;
}

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

.page-faq .faq-rail {
  display: none;
}

.page-faq .faq-hero {
  position: relative;
  border: 1px solid rgba(0, 229, 255, 0.32);
  border-radius: var(--radius-lg);
  background: linear-gradient(115deg, rgba(11, 29, 58, 0.55) 20%, rgba(14, 77, 58, 0.32) 100%);
  padding: var(--faq-hero-padding);
  overflow: hidden;
}

.page-faq .faq-hero-corner {
  position: absolute;
  width: 46px;
  height: 46px;
  border: 3px solid var(--signal-orange);
  border-radius: var(--radius-sm);
  pointer-events: none;
}

.page-faq .faq-hero-corner-tl {
  top: 14px;
  left: 14px;
  border-right: none;
  border-bottom: none;
}

.page-faq .faq-hero-corner-br {
  right: 14px;
  bottom: 14px;
  border-left: none;
  border-top: none;
}

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

.page-faq .breadcrumb {
  margin-bottom: 26px;
  font-size: 14px;
}

.page-faq .breadcrumb-sep {
  margin: 0 8px;
  color: var(--muted-gray);
}

.page-faq .breadcrumb-link {
  color: rgba(245, 247, 250, 0.6);
}

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

.page-faq .breadcrumb-current {
  color: rgba(245, 247, 250, 0.92);
}

.page-faq .faq-hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.page-faq .faq-hero-meta .tag {
  background: rgba(122, 92, 255, 0.2);
  color: #c7b8ff;
  border: 1px solid rgba(122, 92, 255, 0.4);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-size: 12px;
}

.page-faq .faq-hero-version {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(245, 247, 250, 0.72);
  font-size: 13px;
  font-family: var(--font-data);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(32px, 6.4vw, 62px);
  line-height: 1.06;
  letter-spacing: 0.02em;
  color: var(--paper-white);
  margin: 0 0 20px;
  max-width: 15em;
}

.page-faq .faq-hero-lead {
  color: rgba(245, 247, 250, 0.78);
  font-size: 16px;
  line-height: 1.75;
  margin: 0 0 28px;
  max-width: 46em;
}

.page-faq .faq-hero-quick {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-faq .faq-hero-quick-label {
  font-size: 13px;
  color: rgba(245, 247, 250, 0.58);
  margin-right: 2px;
}

.page-faq .faq-quick-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(0, 229, 255, 0.3);
  color: var(--cyan-pulse);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

.page-faq .faq-quick-link:hover,
.page-faq .faq-quick-link:focus-visible {
  background: rgba(0, 229, 255, 0.16);
  color: var(--lime-flash);
  border-color: rgba(198, 255, 0, 0.45);
}

.page-faq .faq-hero .tick-bar {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 10px;
  background: repeating-linear-gradient(90deg,
    var(--cyan-pulse) 0 2px,
    transparent 2px 14px,
    var(--signal-orange) 14px 16px,
    transparent 16px 30px);
  opacity: 0.5;
}

/* ---------- 问答区 ---------- */
.page-faq .faq-panels-section {
  position: relative;
  background: linear-gradient(180deg, var(--paper-white) 0%, #e9edf3 100%);
  padding: 64px 0 88px;
}

.page-faq .faq-panels-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg,
    var(--signal-orange) 0 20%,
    var(--cyan-pulse) 20% 55%,
    var(--lime-flash) 55% 100%);
}

.page-faq .faq-panels-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.page-faq .faq-side-nav {
  display: none;
}

.page-faq .faq-panels-main {
  min-width: 0;
}

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

.page-faq .faq-section-kicker {
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--signal-orange);
  display: inline-block;
  margin-bottom: 10px;
}

.page-faq .faq-section-head h2 {
  font-family: var(--font-heading);
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.12;
  color: var(--night-blue);
  margin: 0 0 10px;
}

.page-faq .faq-section-head p {
  margin: 0;
  color: var(--muted-gray);
  font-size: 15px;
  line-height: 1.6;
}

.page-faq .faq-panels-list {
  display: flex;
  flex-direction: column;
  gap: 52px;
}

.page-faq .faq-group {
  scroll-margin-top: 96px;
}

.page-faq .faq-group-head {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
  padding-bottom: 18px;
  border-bottom: 2px solid var(--faq-soft-line);
}

.page-faq .faq-group-num {
  font-family: var(--font-data);
  font-size: 38px;
  font-weight: 700;
  line-height: 1;
  color: var(--night-blue);
  opacity: 0.22;
  min-width: 56px;
}

.page-faq .faq-group-heading h3 {
  font-family: var(--font-heading);
  font-size: clamp(20px, 3vw, 28px);
  line-height: 1.2;
  color: var(--night-blue);
  margin: 0 0 6px;
}

.page-faq .faq-group-heading p {
  margin: 0;
  font-size: 14px;
  color: var(--muted-gray);
  line-height: 1.5;
}

/* ---------- 连续折叠面板 ---------- */
.page-faq .faq-group-panels {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .faq-panel {
  background: var(--faq-panel-white);
  border: 1px solid rgba(11, 29, 58, 0.08);
  border-radius: var(--radius-pill);
  box-shadow: 0 2px 10px rgba(11, 29, 58, 0.04);
  overflow: hidden;
  transition: background-color 0.35s ease, border-color 0.35s ease,
    border-radius 0.35s ease, box-shadow 0.35s ease;
}

.page-faq .faq-panel[open] {
  background: var(--night-blue);
  border-color: var(--night-blue);
  border-radius: var(--radius-lg);
  box-shadow: 0 18px 42px rgba(11, 29, 58, 0.24);
}

.page-faq .faq-panel-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 17px 20px;
  cursor: pointer;
  list-style: none;
  user-select: none;
  border-radius: var(--radius-pill);
  transition: background-color 0.3s ease;
}

.page-faq .faq-panel-header::-webkit-details-marker {
  display: none;
}

.page-faq .faq-panel-header::marker {
  content: "";
}

.page-faq .faq-panel-header:hover {
  background: rgba(0, 229, 255, 0.07);
}

.page-faq .faq-panel-header:hover .faq-panel-title {
  color: var(--cyan-pulse);
}

.page-faq .faq-panel[open] .faq-panel-header {
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: rgba(0, 229, 255, 0.08);
}

.page-faq .faq-panel[open] .faq-panel-header:hover .faq-panel-title {
  color: var(--lime-flash);
}

.page-faq .faq-panel-dot {
  width: 10px;
  height: 10px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--lime-flash);
  box-shadow: 0 0 0 4px rgba(198, 255, 0, 0.18);
  transition: box-shadow 0.3s ease;
}

.page-faq .faq-panel[open] .faq-panel-dot {
  box-shadow: 0 0 0 6px rgba(198, 255, 0, 0.28);
}

.page-faq .faq-panel-title {
  flex: 1;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--ink-black);
  transition: color 0.3s ease;
}

.page-faq .faq-panel[open] .faq-panel-title {
  color: var(--paper-white);
}

.page-faq .panel-icon {
  font-family: var(--font-data);
  font-size: 22px;
  line-height: 1;
  flex-shrink: 0;
  color: var(--signal-orange);
  transition: transform 0.35s ease, color 0.3s ease;
}

.page-faq .faq-panel[open] .panel-icon {
  transform: rotate(45deg);
  color: var(--lime-flash);
}

.page-faq .faq-panel-content {
  padding: 0 22px 26px;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(245, 247, 250, 0.86);
}

.page-faq .faq-panel-content p {
  margin: 0 0 12px;
}

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

.page-faq .faq-panel-content a {
  color: var(--cyan-pulse);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.35);
  transition: color 0.25s ease, border-color 0.25s ease;
}

.page-faq .faq-panel-content a:hover {
  color: var(--lime-flash);
  border-color: var(--lime-flash);
}

.page-faq .faq-steps {
  margin: 6px 0 18px;
  padding: 0;
  list-style: none;
  counter-reset: faq-step;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .faq-steps li {
  position: relative;
  padding-left: 36px;
  counter-increment: faq-step;
}

.page-faq .faq-steps li::before {
  content: counter(faq-step);
  position: absolute;
  left: 0;
  top: 2px;
  width: 24px;
  height: 24px;
  border-radius: var(--radius-pill);
  background: var(--signal-orange);
  color: #ffffff;
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-faq .faq-figure {
  margin: 18px 0 0;
  padding: 8px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.07);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  object-fit: cover;
}

.page-faq .faq-figure figcaption {
  font-size: 13px;
  color: rgba(245, 247, 250, 0.62);
  padding: 10px 6px 2px;
}

/* ---------- 联系人工支持 ---------- */
.page-faq .faq-contact {
  background:
    radial-gradient(circle at 82% 18%, rgba(0, 229, 255, 0.14), transparent 44%),
    linear-gradient(135deg, var(--night-blue) 0%, var(--pitch-green) 100%);
  color: var(--paper-white);
  padding: 72px 0;
}

.page-faq .faq-contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

.page-faq .faq-kicker-light {
  color: var(--lime-flash);
}

.page-faq .faq-contact-info h2 {
  font-family: var(--font-heading);
  font-size: clamp(26px, 4vw, 40px);
  line-height: 1.1;
  color: var(--paper-white);
  margin: 0 0 14px;
}

.page-faq .faq-contact-lead {
  color: rgba(245, 247, 250, 0.76);
  font-size: 15px;
  line-height: 1.7;
  margin: 0 0 24px;
  max-width: 42em;
}

.page-faq .faq-contact-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 24px;
}

.page-faq .faq-contact-list .contact-line {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--paper-white);
}

.page-faq .contact-line-label {
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--cyan-pulse);
  min-width: 56px;
}

.page-faq .faq-contact-list a {
  color: var(--paper-white);
  text-decoration: none;
  border-bottom: 1px solid rgba(198, 255, 0, 0.4);
  transition: color 0.25s ease, border-color 0.25s ease;
}

.page-faq .faq-contact-list a:hover {
  color: var(--lime-flash);
  border-color: var(--lime-flash);
}

.page-faq .faq-contact-note {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(245, 247, 250, 0.65);
  margin: 0 0 22px;
}

.page-faq .faq-contact-note a {
  color: var(--cyan-pulse);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.35);
}

.page-faq .faq-contact-note a:hover {
  color: var(--lime-flash);
  border-color: var(--lime-flash);
}

.page-faq .faq-contact-figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.06);
  padding: 10px;
  border: 1px solid rgba(0, 229, 255, 0.18);
}

.page-faq .faq-contact-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: calc(var(--radius-md) - 6px);
  object-fit: cover;
}

.page-faq .faq-contact-figure figcaption {
  font-size: 13px;
  color: rgba(245, 247, 250, 0.6);
  padding: 12px 8px 4px;
}

/* ---------- 桌面端增强 ---------- */
@media (min-width: 960px) {
  .page-faq {
    --faq-hero-padding: 48px 56px 60px;
  }

  .page-faq .faq-hero-wrap {
    padding: 120px 0 72px;
  }

  .page-faq .faq-hero-container {
    display: grid;
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 24px;
    align-items: stretch;
  }

  .page-faq .faq-rail {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 24px 0;
  }

  .page-faq .faq-rail-badge {
    font-family: var(--font-heading);
    font-size: 16px;
    letter-spacing: 0.1em;
    writing-mode: vertical-rl;
    color: var(--paper-white);
    background: var(--signal-orange);
    padding: 10px 6px;
    border-radius: var(--radius-pill);
  }

  .page-faq .faq-rail-line {
    width: 2px;
    flex: 1;
    background: linear-gradient(180deg, var(--signal-orange), var(--cyan-pulse) 70%, transparent);
    border-radius: 2px;
  }

  .page-faq .faq-hero {
    min-height: 430px;
  }

  .page-faq .faq-panels-grid {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-faq .faq-side-nav {
    display: flex;
    flex-direction: column;
    gap: 6px;
    position: sticky;
    top: 104px;
    padding: 24px;
    border-radius: var(--radius-lg);
    background: rgba(11, 29, 58, 0.04);
    border: 1px solid rgba(11, 29, 58, 0.06);
  }

  .page-faq .faq-side-label {
    font-family: var(--font-data);
    font-size: 12px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--signal-orange);
    margin-bottom: 8px;
  }

  .page-faq .faq-side-nav a {
    padding: 8px 12px;
    border-radius: var(--radius-pill);
    color: var(--ink-black);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: background 0.25s ease, color 0.25s ease;
  }

  .page-faq .faq-side-nav a:hover {
    background: var(--night-blue);
    color: var(--lime-flash);
  }

  .page-faq .faq-panels-section {
    padding: 88px 0 104px;
  }

  .page-faq .faq-panels-list {
    gap: 64px;
  }

  .page-faq .faq-group-head {
    padding-bottom: 22px;
  }

  .page-faq .faq-panel-header {
    padding: 20px 26px;
  }

  .page-faq .faq-panel-title {
    font-size: 16px;
  }

  .page-faq .faq-panel-content {
    padding: 0 30px 30px;
  }

  .page-faq .faq-contact {
    padding: 96px 0;
  }

  .page-faq .faq-contact-grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
    gap: 56px;
    align-items: center;
  }
}

@media (min-width: 1280px) {
  .page-faq .faq-hero h1 {
    font-size: 64px;
  }

  .page-faq .faq-hero-container {
    grid-template-columns: 88px minmax(0, 1fr);
  }
}