.page-faq {
  --faq-green-soft: #E2EDE6;
  --faq-paper-soft: #FDF9F1;
  --faq-ember-wash: #FBEEE8;
  --faq-ink-muted: #5F5950;
  --faq-radius-xl: 32px;
  --faq-radius-lg: 24px;
  --faq-radius-md: 16px;
  --faq-shadow: 0 12px 32px rgba(28, 27, 26, 0.08);
  --faq-shadow-deep: 0 18px 48px rgba(13, 17, 23, 0.12);

  background-color: var(--color-cream);
  color: var(--color-ink);
  min-height: 70vh;
}

.faq-shell {
  width: 100%;
  max-width: 1280px;
  margin-inline: auto;
  padding: clamp(16px, 3vw, 36px);
}

/* ---------- Hero 封面区 ---------- */
.faq-hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(125deg, var(--color-pitch) 0%, #143D30 58%, var(--color-ember) 190%);
  border-radius: var(--faq-radius-xl);
  color: var(--color-cream);
  padding: clamp(24px, 4vw, 48px);
  box-shadow: var(--faq-shadow-deep);
}

.faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    rgba(255, 249, 239, 0.055) 0 12px,
    rgba(255, 249, 239, 0.09) 12px 24px
  );
  pointer-events: none;
}

.faq-hero .breadcrumb {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(245, 240, 232, 0.72);
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.faq-hero .breadcrumb a {
  color: rgba(245, 240, 232, 0.9);
  text-decoration: none;
  transition: color 0.2s ease;
}

.faq-hero .breadcrumb a:hover {
  color: #ffffff;
}

.faq-hero .breadcrumb-separator {
  color: rgba(245, 240, 232, 0.4);
}

.faq-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
}

.faq-hero-copy .tag-pitch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 249, 239, 0.14);
  border: 1px solid rgba(255, 249, 239, 0.26);
  color: var(--color-cream);
  border-radius: var(--radius-pill);
  padding: 7px 16px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.faq-hero-title {
  color: var(--color-cream);
  margin: 18px 0 16px;
  font-family: var(--font-headline);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.12;
}

.faq-hero-lead {
  margin: 0;
  max-width: 620px;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.8;
  color: rgba(245, 240, 232, 0.9);
}

.faq-hero-meta {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.faq-hero-meta li {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 249, 239, 0.13);
  border: 1px solid rgba(255, 249, 239, 0.2);
  border-radius: var(--radius-pill);
  padding: 8px 14px;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--color-cream);
  backdrop-filter: blur(4px);
}

.faq-hero .faq-num {
  background: rgba(217, 162, 27, 0.24);
  color: #F4C84E;
  font-family: var(--font-data);
  font-weight: 600;
  padding: 1px 7px;
  border-radius: 999px;
}

.faq-hero-figure {
  margin: 0;
  padding: 12px;
  border-radius: var(--faq-radius-lg);
  background: rgba(255, 249, 239, 0.1);
  border: 1px solid rgba(255, 249, 239, 0.16);
}

.faq-hero-img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: calc(var(--faq-radius-md) - 4px);
  object-fit: cover;
}

/* ---------- 主体布局 ---------- */
.faq-layout {
  display: grid;
  gap: 20px;
  margin-top: 28px;
  align-items: start;
}

.faq-content {
  background: linear-gradient(145deg, var(--faq-green-soft) 0%, rgba(226, 237, 230, 0.4) 38%, transparent 78%);
  border: 1px solid rgba(26, 74, 58, 0.1);
  border-radius: var(--faq-radius-xl);
  padding: 18px;
  min-width: 0;
}

/* ---------- 索引工具栏 ---------- */
.faq-index {
  position: sticky;
  top: 8px;
  z-index: 30;
  background: rgba(253, 249, 241, 0.94);
  border: 1px solid rgba(214, 203, 184, 0.75);
  border-radius: var(--faq-radius-lg);
  box-shadow: var(--faq-shadow);
  backdrop-filter: blur(8px);
  padding: 10px;
}

.faq-index-inner {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
  padding-bottom: 2px;
}

.faq-index-inner::-webkit-scrollbar {
  display: none;
}

.faq-index-label {
  display: none;
}

.faq-index-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  padding: 10px 16px;
  border-radius: var(--radius-pill);
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid var(--color-line);
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.faq-index-item:hover,
.faq-index-item:focus-visible {
  background: var(--color-pitch);
  border-color: var(--color-pitch);
  color: var(--color-cream);
  transform: translateY(-1px);
}

.faq-index-item:hover .faq-index-code,
.faq-index-item:focus-visible .faq-index-code {
  color: var(--color-gold);
}

.faq-index-code {
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 700;
  color: var(--color-ember);
}

/* ---------- 章节 ---------- */
.faq-section {
  scroll-margin-top: 120px;
  padding: 26px 18px;
  border-radius: var(--faq-radius-lg);
  background: rgba(253, 249, 241, 0.72);
  box-shadow: 0 4px 16px rgba(28, 27, 26, 0.04);
}

.faq-section + .faq-section {
  margin-top: 16px;
}

.faq-section-head {
  position: relative;
  padding-left: 20px;
  margin-bottom: 20px;
}

.faq-section-head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 5px;
  border-radius: var(--radius-pill);
  background: linear-gradient(180deg, var(--color-ember) 0%, var(--color-gold) 100%);
}

.faq-section-head::after {
  content: "";
  display: block;
  width: 76px;
  height: 6px;
  margin-top: 12px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--color-brick), var(--color-ember), var(--color-gold));
}

.faq-section-code {
  font-family: var(--font-data);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-ember);
}

.faq-section-head h2 {
  margin: 6px 0 8px;
  font-family: var(--font-headline);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--color-ink);
}

.faq-section-head p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.7;
  color: var(--faq-ink-muted);
  max-width: 560px;
}

/* ---------- 问答气泡 ---------- */
.faq-qa-list {
  display: grid;
  gap: 12px;
}

.faq-qa {
  background: var(--faq-paper-soft);
  border-radius: var(--faq-radius-lg);
  box-shadow: 0 6px 20px rgba(28, 27, 26, 0.06);
  overflow: hidden;
  transition: box-shadow 0.25s ease, background 0.25s ease;
}

.faq-qa:nth-child(even) {
  background: var(--faq-green-soft);
}

.faq-qa[open] {
  box-shadow: inset 4px 0 0 var(--color-ember), var(--faq-shadow);
  background: var(--color-paper);
}

.faq-qa > summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  cursor: pointer;
  padding: 18px 20px;
  font-family: var(--font-headline);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--color-ink);
}

.faq-qa > summary::-webkit-details-marker {
  display: none;
}

.faq-qa > summary::marker {
  content: "";
}

.faq-qa > summary::after {
  content: "+";
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--color-pitch);
  color: var(--color-cream);
  font-family: var(--font-data);
  font-size: 20px;
  font-weight: 600;
  transition: transform 0.25s ease, background 0.25s ease;
}

.faq-qa[open] > summary::after {
  transform: rotate(45deg);
  background: var(--color-ember);
}

.faq-qa > summary:focus-visible {
  outline: 3px solid var(--color-electric);
  outline-offset: -3px;
  border-radius: var(--faq-radius-lg);
}

.faq-answer {
  padding: 0 20px 22px;
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.8;
  color: #47423B;
}

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

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

.faq-num {
  display: inline-block;
  background: var(--faq-ember-wash);
  color: var(--color-ember);
  font-family: var(--font-data);
  font-weight: 600;
  padding: 1px 7px;
  border-radius: 8px;
  animation: faq-pulse 3s ease-in-out 1;
}

@keyframes faq-pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.6;
  }
}

.faq-mail {
  font-family: var(--font-data);
  font-weight: 600;
  color: var(--color-electric);
  background: rgba(14, 95, 216, 0.08);
  padding: 2px 6px;
  border-radius: 8px;
  word-break: break-all;
}

.faq-steps {
  margin: 12px 0 4px;
  padding-left: 0;
  list-style: none;
  counter-reset: faq-step;
}

.faq-steps li {
  position: relative;
  counter-increment: faq-step;
  padding-left: 36px;
  margin-bottom: 8px;
}

.faq-steps li::before {
  content: counter(faq-step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 25px;
  height: 25px;
  background: var(--color-pitch);
  color: var(--color-cream);
  border-radius: var(--radius-sm);
  font-family: var(--font-data);
  font-size: 12px;
  font-weight: 700;
}

/* ---------- 联系支持区 ---------- */
.faq-support-grid {
  display: grid;
  gap: 20px;
  margin-top: 28px;
}

.faq-contact-card {
  position: relative;
  overflow: hidden;
  background: var(--color-pitch);
  border-radius: var(--faq-radius-xl);
  color: var(--color-cream);
  padding: 28px;
  box-shadow: var(--faq-shadow-deep);
}

.faq-contact-card::after {
  content: "";
  position: absolute;
  right: -48px;
  bottom: -48px;
  width: 190px;
  height: 190px;
  border-radius: 50%;
  background: rgba(217, 162, 27, 0.13);
  pointer-events: none;
}

.faq-contact-card::before {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  width: 140px;
  height: 140px;
  background: repeating-linear-gradient(
    -45deg,
    rgba(245, 240, 232, 0.07) 0 10px,
    transparent 10px 22px
  );
  clip-path: polygon(100% 0, 100% 100%, 0 0);
  pointer-events: none;
}

.faq-contact-card h3 {
  position: relative;
  z-index: 1;
  margin: 0 0 6px;
  font-family: var(--font-headline);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(245, 240, 232, 0.58);
}

.faq-contact-card h3:not(:first-child) {
  margin-top: 22px;
}

.faq-contact-card p {
  position: relative;
  z-index: 1;
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  color: var(--color-cream);
  word-break: break-word;
}

.faq-contact-mail {
  font-family: var(--font-data) !important;
  font-size: 16px !important;
  font-weight: 600;
  color: var(--color-cream);
}

.faq-contact-mail + .faq-contact-mail {
  margin-top: 4px;
}

.faq-contact-phone,
.faq-contact-time,
.faq-contact-addr {
  font-family: var(--font-data) !important;
  font-weight: 600;
}

.faq-contact-phone {
  color: var(--color-gold) !important;
  font-size: 22px !important;
  letter-spacing: 0.02em;
}

.faq-contact-figure {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

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

.faq-contact-figure figcaption {
  padding: 0 6px;
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.6;
  color: var(--faq-ink-muted);
}

.faq-contact-note {
  margin-top: 20px;
  padding: 18px 20px;
  background: var(--color-paper);
  border-left: 4px solid var(--color-gold);
  border-radius: var(--faq-radius-md);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.8;
  color: var(--faq-ink-muted);
}

.faq-contact-note p {
  margin: 0;
}

.faq-contact-note a {
  color: var(--color-electric);
  text-decoration: underline;
  text-underline-offset: 2px;
  font-weight: 600;
}

.faq-contact-note a:hover {
  color: var(--color-ember);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 1024px) {
  .faq-hero-grid {
    grid-template-columns: 1.05fr 1fr;
    align-items: center;
    gap: 40px;
  }

  .faq-hero-lead {
    font-size: 17px;
  }

  .faq-hero-meta {
    margin-top: 28px;
  }

  .faq-layout {
    grid-template-columns: 224px minmax(0, 1fr);
    gap: 28px;
    margin-top: 36px;
  }

  .faq-index {
    top: 24px;
    background: transparent;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    backdrop-filter: none;
    padding: 0;
  }

  .faq-index-inner {
    flex-direction: column;
    gap: 6px;
    overflow: visible;
    padding: 0;
  }

  .faq-index-label {
    display: block;
    font-family: var(--font-data);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.14em;
    color: var(--color-ink);
    border-bottom: 1px solid var(--color-line);
    padding: 4px 12px 12px;
    margin-bottom: 10px;
  }

  .faq-index-item {
    display: flex;
    width: 100%;
    background: var(--color-paper);
    border-color: var(--color-line);
    padding: 12px 16px;
    font-size: 14px;
  }

  .faq-index-item:hover,
  .faq-index-item:focus-visible {
    background: var(--color-pitch);
    border-color: var(--color-pitch);
    color: var(--color-cream);
    transform: none;
  }

  .faq-content {
    padding: 26px;
  }

  .faq-section {
    padding: 32px 28px;
  }

  .faq-section + .faq-section {
    margin-top: 20px;
  }

  .faq-qa > summary {
    font-size: 17px;
    padding: 20px 24px;
  }

  .faq-answer {
    font-size: 16px;
    padding: 0 24px 24px;
  }

  .faq-support-grid {
    grid-template-columns: 1.15fr 1fr;
    align-items: stretch;
    margin-top: 32px;
  }

  .faq-contact-card {
    padding: 36px;
  }

  .faq-contact-figure img {
    height: 100%;
    aspect-ratio: 3 / 2;
  }

  .faq-contact-note {
    margin-top: 24px;
  }
}

/* ---------- 宽屏微调 ---------- */
@media (min-width: 1440px) {
  .faq-shell {
    max-width: 1320px;
  }

  .faq-layout {
    grid-template-columns: 248px minmax(0, 1fr);
  }
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .faq-num {
    animation: none;
  }

  .faq-qa > summary::after {
    transition: none;
  }

  .faq-qa,
  .faq-index-item {
    transition: none;
  }
}