/* ===== 必一娱乐支持中心 · 页面专属样式 ===== */
.page-faq {
  --faq-ink: var(--color-ink);
  --faq-ink-soft: var(--color-ink-soft);
  --faq-blue: var(--color-blue);
  --faq-red: var(--color-red);
  --faq-green: var(--color-green);
  --faq-purple: var(--color-purple);
  --faq-cyan: var(--color-cyan);
  --faq-paper: var(--color-paper);
  --faq-paper-deep: var(--color-paper-deep);
  --faq-dark: var(--color-bg-dark);
  --faq-header: var(--color-header);
  --faq-line: var(--color-line);
  color: var(--faq-ink);
}

/* ---------- 首屏 Hero ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: 2rem 1.25rem 1.5rem;
  border-bottom: 2px solid var(--faq-ink);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 8px;
  background: linear-gradient(90deg, var(--faq-blue) 0 34%, var(--faq-cyan) 34% 58%, var(--faq-ink) 58% 80%, var(--faq-red) 80% 100%);
  opacity: 0.85;
}

.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  font-size: 0.8125rem;
  color: var(--faq-ink-soft);
  margin-bottom: 1.5rem;
}

.page-faq .breadcrumb a {
  color: var(--faq-blue);
  text-decoration: none;
}

.page-faq .breadcrumb a:hover {
  text-decoration: underline;
}

.page-faq .faq-hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.9rem, 5.5vw, 3.4rem);
  font-weight: 900;
  font-style: italic;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 1.25rem;
  max-width: 16em;
}

.page-faq .faq-hero-lead {
  font-size: 1rem;
  line-height: 1.9;
  color: var(--faq-ink);
  max-width: 42em;
  margin: 0;
}

.page-faq .hero-panel {
  margin-top: 2rem;
  background: var(--faq-dark);
  color: var(--faq-paper);
  border: 1px solid var(--faq-line);
  box-shadow: var(--shadow-paper);
  padding: 1.25rem 1.25rem 0.75rem;
  display: grid;
  gap: 0.25rem;
}

.page-faq .hero-indicator {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .hero-indicator:last-child {
  border-bottom: none;
}

.page-faq .hero-ind-num {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 900;
  font-style: italic;
  line-height: 1;
  color: var(--faq-cyan);
  white-space: nowrap;
}

.page-faq .hero-indicator em {
  font-style: normal;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--faq-cyan);
}

.page-faq .hero-indicator b {
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--color-paper-deep);
}

/* ---------- 区块标题 ---------- */
.page-faq .section-heading {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--faq-ink);
}

.page-faq .section-index {
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-weight: 900;
  font-style: italic;
  line-height: 0.9;
  color: var(--faq-blue);
  letter-spacing: -0.05em;
}

.page-faq .section-heading h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.4rem, 3.6vw, 2rem);
  font-weight: 900;
  font-style: italic;
  margin: 0.1rem 0 0;
  line-height: 1.1;
}

.page-faq .vertical-note {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--faq-ink-soft);
  letter-spacing: 0.18em;
  padding-left: 0.5rem;
  border-left: 1px solid var(--faq-paper-deep);
  flex: none;
}

.page-faq .section-desc {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--faq-ink);
  max-width: 46em;
  margin: 0 0 1.5rem;
}

/* ---------- 三步修复流程 ---------- */
.page-faq .fix-board {
  margin-top: 1.25rem;
  padding: 1.5rem 1rem 1.25rem;
  background: linear-gradient(180deg, rgba(30, 111, 255, 0.06) 0%, rgba(30, 111, 255, 0.01) 100%);
  border-left: 4px solid var(--faq-blue);
  border-top: 1px solid var(--faq-paper-deep);
  border-right: 1px solid var(--faq-paper-deep);
  border-bottom: 1px solid var(--faq-paper-deep);
}

.page-faq .fix-board .section-heading {
  margin-top: 0.75rem;
}

.page-faq .steps-track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.75rem;
}

.page-faq .step-card {
  position: relative;
  background: var(--faq-paper);
  border: 2px solid var(--faq-ink);
  box-shadow: var(--shadow-paper);
  padding: 1.25rem;
  margin: 0;
}

.page-faq .step-card:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -1.4rem;
  width: 2px;
  height: 1.1rem;
  background: var(--faq-blue);
}

.page-faq .step-card:not(:last-child)::before {
  content: "";
  position: absolute;
  left: calc(50% - 6px);
  bottom: -1.8rem;
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 8px solid var(--faq-blue);
  z-index: 1;
}

.page-faq .step-card-top {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.page-faq .step-index {
  font-family: var(--font-heading);
  font-size: 2.6rem;
  font-weight: 900;
  font-style: italic;
  line-height: 1;
  color: var(--faq-blue);
  letter-spacing: -0.04em;
}

.page-faq .step-card h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 900;
  margin: 0;
  line-height: 1.2;
}

.page-faq .step-status {
  margin-left: auto;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.6rem;
  border: 1px solid currentColor;
  white-space: nowrap;
}

.page-faq .step-status--ok {
  color: var(--faq-green);
}

.page-faq .step-status--info {
  color: var(--faq-blue);
}

.page-faq .step-status--done {
  color: var(--faq-blue);
}

.page-faq .step-details {
  margin-top: 0.9rem;
  padding-top: 0.7rem;
  border-top: 1px dashed var(--faq-paper-deep);
}

.page-faq .step-details summary {
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--faq-blue);
  user-select: none;
  outline-offset: 4px;
}

.page-faq .step-details summary:focus-visible {
  outline: 2px solid var(--faq-blue);
}

.page-faq .step-details[open] summary {
  color: var(--faq-ink-soft);
}

.page-faq .step-details ul {
  margin: 0.8rem 0 0;
  padding-left: 1.1rem;
}

.page-faq .step-details li {
  margin-bottom: 0.45rem;
  font-size: 0.9rem;
  line-height: 1.7;
}

.page-faq .flow-figure {
  margin: 1.75rem 0 0;
  border: 2px solid var(--faq-ink);
  background: var(--faq-paper);
  box-shadow: var(--shadow-paper);
  padding: 0.75rem;
}

.page-faq .flow-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--faq-paper-deep);
}

.page-faq .flow-figure figcaption {
  margin-top: 0.65rem;
  padding-top: 0.55rem;
  border-top: 1px solid var(--faq-paper-deep);
  font-size: 0.8125rem;
  color: var(--faq-ink-soft);
  text-align: right;
}

/* ---------- 常见问题分类 ---------- */
.page-faq .faq-board {
  margin-top: 1.25rem;
  padding: 0.5rem 0 1rem;
}

.page-faq .faq-tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 1.25rem 0 1.75rem;
}

.page-faq .faq-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.9rem;
  border: 2px solid currentColor;
  background: var(--faq-paper);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 800;
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
  transition: background 0.2s ease, color 0.2s ease;
}

.page-faq .faq-tag-num {
  font-family: monospace;
  font-size: 0.75rem;
  opacity: 0.75;
}

.page-faq .faq-tag--red {
  color: var(--faq-red);
}

.page-faq .faq-tag--blue {
  color: var(--faq-blue);
}

.page-faq .faq-tag--green {
  color: var(--faq-green);
}

.page-faq .faq-tag--purple {
  color: var(--faq-purple);
}

.page-faq .faq-tag:hover {
  background: currentColor;
  color: var(--faq-paper);
}

.page-faq .faq-group {
  margin: 1.75rem 0;
  padding: 1.25rem 1rem;
  background: rgba(245, 240, 230, 0.78);
  border: 1px solid var(--faq-paper-deep);
  border-top: 3px solid var(--faq-ink);
}

.page-faq .faq-group-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 0.75rem;
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 900;
}

.page-faq .faq-group-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.8rem;
  height: 1.8rem;
  font-family: var(--font-heading);
  font-weight: 900;
  color: var(--faq-paper);
}

.page-faq .faq-group-mark--red {
  background: var(--faq-red);
}

.page-faq .faq-group-mark--blue {
  background: var(--faq-blue);
}

.page-faq .faq-group-mark--green {
  background: var(--faq-green);
}

.page-faq .faq-group-mark--purple {
  background: var(--faq-purple);
}

.page-faq .faq-item {
  margin-top: 0.75rem;
  background: var(--faq-paper);
  border: 1px solid var(--faq-paper-deep);
}

.page-faq .faq-item summary {
  cursor: pointer;
  padding: 0.9rem 2.4rem 0.9rem 1rem;
  font-weight: 700;
  font-size: 0.95rem;
  line-height: 1.5;
  list-style: none;
  position: relative;
}

.page-faq .faq-item summary::-webkit-details-marker,
.page-faq .faq-item summary::marker {
  display: none;
  content: "";
}

.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 900;
  line-height: 1;
  color: var(--faq-blue);
}

.page-faq .faq-item[open] summary::after {
  content: "–";
}

.page-faq .faq-item summary:focus-visible {
  outline: 2px solid var(--faq-blue);
  outline-offset: -2px;
}

.page-faq .faq-answer {
  padding: 0.1rem 1.1rem 1rem;
  font-size: 0.925rem;
  line-height: 1.8;
  color: var(--faq-ink);
}

.page-faq .faq-answer p {
  margin: 0;
}

/* ---------- 操作指南（终端风格） ---------- */
.page-faq .guide-board {
  margin-top: 2rem;
  padding: 1.5rem 1rem 0.5rem;
  background: var(--faq-dark);
  color: var(--faq-paper);
  border: 1px solid var(--faq-line);
  position: relative;
  box-shadow: var(--shadow-paper);
}

.page-faq .guide-board::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--faq-cyan) 0 30%, var(--faq-blue) 30% 70%, var(--faq-purple) 70% 100%);
  opacity: 0.8;
}

.page-faq .guide-board .section-heading {
  border-bottom-color: var(--faq-line);
  margin-top: 0.75rem;
}

.page-faq .section-heading--light .section-index {
  color: var(--faq-cyan);
}

.page-faq .guide-board .vertical-note {
  color: var(--color-paper-deep);
  border-left-color: var(--faq-line);
}

.page-faq .section-desc--light {
  color: var(--color-paper-deep);
}

.page-faq .guide-layout {
  margin-top: 1.25rem;
}

.page-faq .guide-panels {
  display: grid;
  gap: 1.25rem;
}

.page-faq .guide-card {
  background: var(--faq-header);
  color: var(--faq-paper);
  border: 1px solid var(--faq-line);
  display: flex;
  flex-direction: column;
}

.page-faq .guide-card-head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1rem 0.7rem;
  border-bottom: 1px solid var(--faq-line);
  background: rgba(255, 255, 255, 0.045);
}

.page-faq .guide-dots {
  display: inline-flex;
  gap: 0.3rem;
}

.page-faq .guide-dots i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--faq-line);
  display: inline-block;
}

.page-faq .guide-dots i:first-child {
  background: var(--faq-red);
}

.page-faq .guide-dots i:nth-child(2) {
  background: var(--faq-cyan);
}

.page-faq .guide-dots i:nth-child(3) {
  background: var(--faq-green);
}

.page-faq .guide-platform {
  font-family: monospace;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--faq-cyan);
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--faq-cyan);
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}

.page-faq .guide-card h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 900;
  margin: 0;
  letter-spacing: 0.02em;
}

.page-faq .guide-steps {
  counter-reset: gstep;
  list-style: none;
  margin: 0;
  padding: 1rem 1.25rem 0.5rem;
  flex: 1;
}

.page-faq .guide-steps li {
  counter-increment: gstep;
  position: relative;
  padding-left: 2rem;
  margin-bottom: 0.85rem;
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--color-paper);
}

.page-faq .guide-steps li::before {
  content: counter(gstep);
  position: absolute;
  left: 0;
  top: 0.15rem;
  width: 1.3rem;
  height: 1.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: monospace;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--faq-dark);
  background: var(--faq-cyan);
  border-radius: 2px;
}

.page-faq .copy-steps-btn {
  margin: 0.25rem 1.25rem 1.25rem;
  padding: 0.65rem 0.75rem;
  font-family: monospace;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--faq-cyan);
  background: transparent;
  border: 1px solid var(--faq-line);
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-faq .copy-steps-btn:hover,
.page-faq .copy-steps-btn:focus-visible {
  background: var(--faq-cyan);
  color: var(--faq-dark);
  border-color: var(--faq-cyan);
  outline: none;
}

.page-faq .device-zone {
  margin-top: 1.5rem;
}

.page-faq .device-figure {
  margin: 0;
  border: 2px solid var(--faq-ink);
  background: var(--faq-paper);
  padding: 0.75rem;
  box-shadow: var(--shadow-paper);
}

.page-faq .device-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--faq-paper-deep);
}

.page-faq .device-figure figcaption {
  margin-top: 0.65rem;
  padding-top: 0.55rem;
  border-top: 1px solid var(--faq-paper-deep);
  font-size: 0.8125rem;
  color: var(--faq-ink-soft);
  text-align: center;
}

/* ---------- 底部联系区 ---------- */
.page-faq .support-cta {
  margin: 2.5rem 0 2rem;
  padding: 2rem 1.25rem;
  background: var(--faq-dark);
  color: var(--faq-paper);
  border: 1px solid var(--faq-line);
  border-top: 2px solid var(--faq-cyan);
  box-shadow: var(--shadow-paper);
}

.page-faq .cta-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-faq .trust-line {
  font-size: 1rem;
  line-height: 1.9;
  max-width: 44em;
  margin: 0 0 1.5rem;
  padding-left: 1rem;
  border-left: 3px solid var(--faq-cyan);
}

.page-faq .cta-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.page-faq .cta-links .btn {
  text-decoration: none;
}

/* ---------- 桌面端调整 ---------- */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: 3.5rem 1.5rem 2rem;
    display: grid;
    grid-template-columns: 1.45fr 0.85fr;
    gap: 2.5rem;
    align-items: end;
  }

  .page-faq .faq-hero h1 {
    margin-bottom: 1rem;
  }

  .page-faq .hero-panel {
    margin-top: 0;
    align-self: stretch;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .page-faq .section-heading {
    margin-top: 3rem;
  }

  .page-faq .fix-board {
    padding: 1.75rem 1.5rem 1.5rem;
  }

  .page-faq .steps-track {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }

  .page-faq .step-card:not(:last-child)::after {
    left: auto;
    right: -1.5rem;
    bottom: auto;
    top: 50%;
    width: 1.1rem;
    height: 2px;
    background: var(--faq-blue);
  }

  .page-faq .step-card:not(:last-child)::before {
    left: auto;
    right: -1.65rem;
    bottom: auto;
    top: calc(50% - 5px);
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    border-left: 7px solid var(--faq-blue);
    border-right: none;
  }

  .page-faq .flow-figure {
    margin-top: 2rem;
  }

  .page-faq .faq-tag-row {
    flex-wrap: nowrap;
  }

  .page-faq .faq-group {
    padding: 1.5rem 1.5rem 1.25rem;
  }

  .page-faq .guide-board {
    padding: 2rem 1.5rem 1.25rem;
  }

  .page-faq .guide-layout {
    display: grid;
    grid-template-columns: minmax(0, 2.4fr) minmax(0, 0.9fr);
    gap: 1.5rem;
    align-items: start;
  }

  .page-faq .guide-panels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
  }

  .page-faq .guide-card h3 {
    font-size: 0.9rem;
  }

  .page-faq .guide-steps {
    padding: 0.9rem 1rem 0.4rem;
  }

  .page-faq .guide-steps li {
    padding-left: 1.75rem;
    font-size: 0.8125rem;
  }

  .page-faq .copy-steps-btn {
    margin: 0.2rem 1rem 1rem;
  }

  .page-faq .device-zone {
    margin-top: 0;
  }

  .page-faq .device-figure {
    position: sticky;
    top: 1.5rem;
  }

  .page-faq .support-cta {
    padding: 2.25rem 2rem;
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    align-items: center;
  }

  .page-faq .trust-line {
    margin-bottom: 0;
  }

  .page-faq .cta-links {
    flex: none;
    max-width: 15em;
    flex-direction: column;
  }
}