/* ==========================================================
   页面：支持中心 / .page-faq
   作用域：全部限制在 .page-faq 内
   ========================================================== */

.page-faq {
  --faq-accent: #B5593B;
  --faq-accent-dark: #8E3F32;
  --faq-gold: #C79A3B;
  --faq-moss: #5C6A4E;
  --faq-ink: #1A1C1B;
  --faq-rock: #3F4240;
  --faq-paper: #F5EFE6;
  --faq-panel: #FFFFFF;
  --faq-muted: #63707A;
  --faq-sand: #D8C9B4;
  --faq-border: 3px solid var(--faq-ink);
  background-color: var(--faq-paper);
}

.page-faq [id] {
  scroll-margin-top: calc(var(--header-h) + 24px);
}

/* ---------- 页头 ---------- */

.faq-hero {
  padding-top: calc(var(--header-h) + 28px);
  padding-bottom: 32px;
}

.faq-hero .breadcrumbs {
  margin-bottom: 28px;
  font-family: var(--font-mono);
  font-size: var(--font-index-size);
}

.faq-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.faq-hero-copy .page-title {
  margin: 12px 0 20px;
  font-size: clamp(2.25rem, 5vw, 4.5rem);
  line-height: 0.98;
  letter-spacing: -0.02em;
}

.faq-hero-copy .page-title em {
  font-style: normal;
  color: var(--faq-accent);
}

.faq-hero-copy .lead {
  max-width: 62ch;
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--faq-muted);
}

.faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.faq-hero-panel {
  position: relative;
  overflow: hidden;
  background: var(--faq-ink);
  color: var(--faq-paper);
  border: var(--faq-border);
  border-radius: 16px;
  box-shadow: var(--shadow-hard);
  padding: 28px 24px 22px;
}

.faq-hero-panel::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -50px;
  width: 160px;
  height: 160px;
  background: var(--faq-accent);
  transform: rotate(18deg);
}

.faq-hero-panel::after {
  content: "";
  position: absolute;
  left: 24px;
  bottom: 0;
  width: 40%;
  height: 4px;
  background: var(--faq-gold);
}

.faq-hero-panel .diag-badge {
  position: relative;
  z-index: 1;
}

.faq-hero-panel-list {
  margin-top: 48px;
  display: grid;
  gap: 10px;
  position: relative;
  z-index: 1;
}

.faq-hero-link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  color: var(--faq-paper);
  text-decoration: none;
  padding: 10px 0;
  border-bottom: 1px solid rgba(245, 239, 230, 0.18);
  transition: background-color 0.2s ease, padding-left 0.2s ease;
}

.faq-hero-link:hover,
.faq-hero-link:focus-visible {
  background: rgba(181, 89, 59, 0.3);
  padding-left: 8px;
}

.faq-hero-link span {
  font-family: var(--font-mono);
  font-size: var(--font-index-size);
  color: var(--faq-gold);
}

.faq-hero-panel-note {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: var(--font-index-size);
  color: rgba(245, 239, 230, 0.6);
}

/* ---------- 服务状态板 ---------- */

.faq-board {
  background: var(--faq-sand);
  position: relative;
}

.faq-board::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    135deg,
    rgba(26, 28, 27, 0.05) 0,
    rgba(26, 28, 27, 0.05) 1px,
    transparent 1px,
    transparent 14px
  );
  pointer-events: none;
}

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

.faq-section-head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 32px;
}

.faq-section-head .eyebrow {
  color: var(--faq-accent);
}

.faq-section-title {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  line-height: 1.05;
  letter-spacing: -0.01em;
}

.faq-board-live {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  height: fit-content;
  margin-top: 8px;
  padding: 6px 14px;
  border: 2px solid var(--faq-ink);
  border-radius: 999px;
  background: var(--faq-panel);
  font-family: var(--font-mono);
  font-size: var(--font-index-size);
}

.faq-board-live .status-dot {
  animation: faq-pulse 2.2s ease-in-out infinite;
}

@keyframes faq-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(92, 106, 78, 0.5); }
  50% { box-shadow: 0 0 0 6px rgba(92, 106, 78, 0); }
}

.faq-board-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.faq-board-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
  border: var(--faq-border);
  border-radius: 14px;
  overflow: hidden;
  background: var(--faq-ink);
}

.faq-board-card {
  background: var(--faq-panel);
  min-height: 128px;
  padding: 16px 14px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: flex-start;
  gap: 6px;
}

.faq-board-num {
  font-family: var(--font-mono);
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1;
  color: var(--faq-ink);
}

.faq-board-card--accent .faq-board-num {
  color: var(--faq-accent);
}

.faq-board-card--moss .faq-board-num {
  color: var(--faq-moss);
}

.faq-board-label {
  font-size: 0.8125rem;
  line-height: 1.4;
  font-weight: 600;
  color: var(--faq-ink);
}

.faq-board-note {
  font-size: 0.75rem;
  line-height: 1.4;
  color: var(--faq-muted);
}

.faq-board-version {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(1.75rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1;
  color: var(--faq-gold);
}

.faq-board-version-mark {
  font-size: 0.45em;
  vertical-align: top;
  color: var(--faq-accent);
  margin-right: 2px;
}

.faq-board-figure {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 0;
}

.faq-board-img {
  width: 100%;
  max-width: 100%;
  height: auto;
  border: var(--faq-border);
  border-radius: 14px;
  box-shadow: 6px 6px 0 var(--faq-rock);
}

.faq-board-figcap {
  font-family: var(--font-mono);
  font-size: var(--font-index-size);
  color: var(--faq-muted);
}

/* ---------- 高频问题区 ---------- */

.faq-list-section {
  background: var(--faq-paper);
}

.faq-main-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

.faq-toc {
  position: relative;
  height: fit-content;
  background: var(--faq-panel);
  border: var(--faq-border);
  border-radius: 14px;
  padding: 22px 18px;
  box-shadow: 5px 5px 0 rgba(26, 28, 27, 0.12);
}

.faq-toc-title {
  margin: 4px 0 8px;
  font-size: 1.5rem;
  line-height: 1.1;
}

.faq-toc-desc {
  font-size: 0.8125rem;
  color: var(--faq-muted);
  margin: 0 0 18px;
}

.faq-toc-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 0;
  text-decoration: none;
  color: var(--faq-ink);
  font-size: 0.875rem;
  border-bottom: 1px dashed var(--faq-sand);
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.faq-toc-link:focus-visible {
  outline: 2px solid var(--faq-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.faq-toc-link i {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 0.675rem;
  color: var(--faq-accent);
  width: 26px;
  height: 26px;
  border: 2px solid var(--faq-ink);
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: var(--faq-paper);
}

.faq-toc-link:hover,
.faq-toc-link:focus-visible {
  color: var(--faq-accent-dark);
  padding-left: 6px;
}

.faq-toc-btn {
  margin-top: 18px;
}

/* 手风琴 */

.faq-accordion {
  display: grid;
  gap: 12px;
}

.faq-item {
  background: var(--faq-panel);
  border: var(--faq-border);
  border-radius: 14px;
  box-shadow: 4px 4px 0 rgba(26, 28, 27, 0.13);
  overflow: hidden;
  transition: box-shadow 0.25s var(--ease-out), border-color 0.25s ease;
}

.faq-item[open] {
  border-color: var(--faq-accent);
  box-shadow: 5px 5px 0 var(--faq-accent);
}

.faq-item-title {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1.4;
}

.faq-item-title::-webkit-details-marker,
.faq-item-title::marker {
  display: none;
}

.faq-item-title:focus-visible {
  outline: 3px solid var(--faq-gold);
  outline-offset: -3px;
  border-radius: 14px;
}

.faq-item[open] .faq-item-title {
  border-bottom: 2px solid var(--faq-sand);
}

.faq-item-num {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--faq-accent-dark);
  background: var(--faq-paper);
  border: 2px solid var(--faq-ink);
  border-radius: 6px;
  padding: 3px 5px;
  line-height: 1;
}

.faq-item-arrow {
  margin-left: auto;
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  position: relative;
}

.faq-item-arrow::before,
.faq-item-arrow::after {
  content: "";
  position: absolute;
  background: var(--faq-ink);
  transition: transform 0.2s var(--ease-out);
}

.faq-item-arrow::before {
  width: 14px;
  height: 2px;
  top: 10px;
  left: 4px;
}

.faq-item-arrow::after {
  width: 2px;
  height: 14px;
  top: 4px;
  left: 10px;
}

.faq-item[open] .faq-item-arrow::after {
  transform: scaleY(0);
}

.faq-item[open] .faq-item-arrow::before {
  background: var(--faq-accent);
}

.faq-item-body {
  padding: 14px 18px 18px 50px;
  font-size: var(--font-body-size);
  line-height: var(--font-body-lh);
  color: var(--faq-ink);
}

.faq-item-body p {
  margin: 0 0 10px;
}

.faq-item-body p:last-child {
  margin-bottom: 0;
}

.faq-item-body a {
  color: var(--faq-accent-dark);
  font-weight: 600;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.faq-item-body a:hover {
  color: var(--faq-accent);
}

.faq-item-more {
  display: inline-block;
  margin-top: 10px;
  font-weight: 600;
  color: var(--faq-accent-dark);
  text-decoration: none;
  border-bottom: 3px solid var(--faq-accent);
  padding-bottom: 2px;
}

.faq-item-more:hover {
  color: var(--faq-accent);
  border-bottom-color: var(--faq-gold);
}

/* ---------- 使用场景指导 ---------- */

.faq-scenarios {
  background: var(--faq-rock);
  color: var(--faq-paper);
  position: relative;
  overflow: hidden;
}

.faq-scenarios::before {
  content: "";
  position: absolute;
  left: -80px;
  bottom: -160px;
  width: 320px;
  height: 320px;
  background: var(--faq-accent);
  opacity: 0.22;
  transform: rotate(22deg);
  pointer-events: none;
}

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

.faq-section-head--light .eyebrow {
  color: var(--faq-gold);
}

.faq-section-head--light .faq-section-title {
  color: var(--faq-paper);
}

.faq-section-lead {
  max-width: 60ch;
  margin: 10px 0 0;
  font-size: 0.9375rem;
  color: rgba(245, 239, 230, 0.72);
}

.faq-scenario-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
}

.faq-scenario-card {
  background: rgba(245, 239, 230, 0.06);
  border: 2px solid rgba(245, 239, 230, 0.18);
  border-top: 4px solid var(--faq-accent);
  border-radius: 14px;
  padding: 22px 18px;
  display: flex;
  flex-direction: column;
}

.faq-scenario-card:nth-child(2) {
  border-top-color: var(--faq-gold);
}

.faq-scenario-card:nth-child(3) {
  border-top-color: var(--faq-moss);
}

.faq-scenario-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.faq-scenario-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--faq-accent);
  color: var(--faq-paper);
  padding: 4px 8px;
  clip-path: polygon(0 0, 100% 0, calc(100% - 8px) 100%, 0 100%);
}

.faq-scenario-title {
  margin: 0;
  font-size: 1.125rem;
  line-height: 1.2;
  font-family: var(--font-heading);
}

.faq-scenario-desc {
  font-size: 0.875rem;
  line-height: 1.65;
  color: rgba(245, 239, 230, 0.78);
  margin: 0 0 18px;
}

.faq-scenario-steps {
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.faq-scenario-steps li {
  counter-increment: faq-step;
  display: flex;
  gap: 10px;
  font-size: 0.8125rem;
  line-height: 1.55;
  align-items: flex-start;
}

.faq-scenario-steps {
  counter-reset: faq-step;
}

.faq-scenario-steps li::before {
  content: counter(faq-step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--faq-gold);
  border: 1px solid rgba(245, 239, 230, 0.3);
  border-radius: 5px;
  padding: 1px 4px;
  margin-top: 2px;
  flex-shrink: 0;
}

.faq-scenario-tag {
  margin-top: auto;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--faq-paper);
  background: rgba(26, 28, 27, 0.55);
  border-left: 3px solid var(--faq-accent);
  padding: 5px 8px;
}

.faq-visual-guide {
  margin: 40px 0 0;
  position: relative;
  z-index: 1;
}

.faq-visual-guide img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
  border: 3px solid var(--faq-paper);
  border-radius: 14px;
  box-shadow: 8px 8px 0 rgba(181, 89, 59, 0.6);
}

.faq-visual-guide figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: var(--font-index-size);
  color: rgba(245, 239, 230, 0.6);
  text-align: center;
}

/* ---------- 联系支持 ---------- */

.faq-contact {
  background: var(--faq-ink);
  color: var(--faq-paper);
}

.faq-contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
}

.faq-contact-head .eyebrow {
  color: var(--faq-gold);
}

.faq-contact-lead {
  max-width: 52ch;
  margin: 16px 0 24px;
  color: rgba(245, 239, 230, 0.72);
  font-size: 0.9375rem;
}

.faq-contact-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.faq-contact-card {
  background: var(--faq-panel);
  color: var(--faq-ink);
  border-radius: 12px;
  padding: 18px 20px;
  display: grid;
  gap: 6px;
  box-shadow: 4px 4px 0 rgba(181, 89, 59, 0.65);
}

.faq-contact-card-title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--faq-accent-dark);
}

.faq-contact-value {
  margin: 0;
  font-weight: 700;
  font-size: 1.0625rem;
  word-break: break-word;
}

.faq-contact-note {
  font-size: 0.75rem;
  color: var(--faq-muted);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .faq-scenario-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .faq-contact-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  .faq-hero-grid {
    grid-template-columns: minmax(0, 1fr) 320px;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .faq-board-grid {
    grid-template-columns: minmax(0, 1fr) 340px;
    align-items: stretch;
  }

  .faq-board-figure {
    margin: 0;
  }

  .faq-board-img {
    height: 100%;
    object-fit: cover;
  }

  .faq-main-grid {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .faq-toc {
    position: sticky;
    top: calc(var(--header-h) + 20px);
  }

  .faq-scenario-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

  .faq-visual-guide img {
    max-width: 800px;
  }

  .faq-contact-grid {
    grid-template-columns: 0.75fr 1.25fr;
    align-items: start;
    gap: 64px;
  }
}

/* ---------- 减少动态效果 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-faq .reveal {
    opacity: 1 !important;
    transform: none !important;
  }

  .page-faq .faq-board-live .status-dot {
    animation: none;
  }

  .page-faq .faq-item,
  .page-faq .faq-item-arrow::before,
  .page-faq .faq-item-arrow::after,
  .page-faq .faq-hero-link,
  .page-faq .faq-toc-link {
    transition: none;
  }
}