.page-faq {
  --faq-hot: var(--wt-orange);
  --faq-normal: var(--wt-blue);
  --faq-border: var(--wt-trackgray);
  color: var(--wt-mist);
  min-width: 0;
}
.page-faq .faq-hero,
.page-faq .faq-layout {
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(14px, 2.5vw, 36px);
  padding-right: clamp(14px, 2.5vw, 36px);
}

/* ===== 页面头部 ===== */
.page-faq .faq-hero {
  padding-top: clamp(24px, 4vw, 48px);
  padding-bottom: 0;
  margin-bottom: clamp(28px, 4vw, 48px);
}
.page-faq .faq-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--wt-font-data);
  font-size: 0.78rem;
  color: var(--wt-silver);
  letter-spacing: 0.04em;
  margin-bottom: 28px;
}
.page-faq .faq-breadcrumb a {
  color: var(--wt-silver);
  text-decoration: none;
  transition: color 0.2s ease;
}
.page-faq .faq-breadcrumb a:hover {
  color: var(--wt-orange);
}
.page-faq .faq-breadcrumb__sep {
  color: var(--wt-trackgray);
  font-weight: 700;
}
.page-faq .faq-breadcrumb [aria-current="page"] {
  color: var(--wt-mist);
}
.page-faq .faq-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  align-items: end;
  position: relative;
  padding-bottom: 28px;
}
.page-faq .faq-hero__text {
  min-width: 0;
}
.page-faq .faq-hero h1 {
  margin: 8px 0 14px;
  font-family: var(--wt-font-heading);
  font-size: clamp(2.2rem, 4.5vw, 3.8rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  line-height: 1.05;
  color: var(--wt-mist);
  border-left: 4px solid var(--wt-orange);
  padding-left: 16px;
}
.page-faq .faq-hero__panel {
  border: 1px solid rgba(255, 77, 0, 0.6);
  background: linear-gradient(135deg, rgba(255, 77, 0, 0.14), rgba(0, 212, 255, 0.06) 70%);
  padding: 18px 20px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 220px;
}
.page-faq .faq-hero__panel-label {
  font-family: var(--wt-font-data);
  font-size: 0.68rem;
  color: var(--wt-orange);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.page-faq .faq-hero__mail {
  font-family: var(--wt-font-data);
  font-size: 0.92rem;
  color: var(--wt-mist);
  word-break: break-all;
  line-height: 1.4;
}
.page-faq .faq-hero__panel-note {
  font-size: 0.8rem;
  color: var(--wt-concrete);
  line-height: 1.5;
}
.page-faq .faq-hero::after {
  content: "";
  display: block;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--wt-orange) 0%, var(--wt-blue) 55%, transparent 100%);
}

/* ===== 双栏布局 ===== */
.page-faq .faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

/* ===== 左侧索引 ===== */
.page-faq .faq-index {
  background: linear-gradient(180deg, var(--wt-graphite), rgba(30, 35, 39, 0.92));
  border: 1px solid var(--faq-border);
  clip-path: var(--wt-clip-card);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.page-faq .faq-index__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: 1px solid var(--faq-border);
  padding-bottom: 12px;
}
.page-faq .faq-index__label {
  font-family: var(--wt-font-heading);
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  color: var(--wt-mist);
}
.page-faq .faq-index__count {
  font-family: var(--wt-font-data);
  font-size: 0.78rem;
  color: var(--wt-orange);
  border: 1px solid rgba(255, 77, 0, 0.4);
  padding: 2px 8px;
  clip-path: polygon(0 0, 100% 0, calc(100% - 4px) 100%, 0 100%);
}
.page-faq .faq-index__nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}
.page-faq .faq-index__group {
  border: 1px solid var(--faq-border);
  background: rgba(22, 26, 29, 0.5);
  clip-path: polygon(0 8px, 8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
}
.page-faq .faq-index__group-link {
  display: block;
  padding: 10px 12px;
  color: var(--wt-mist);
  font-family: var(--wt-font-heading);
  font-size: 0.85rem;
  text-decoration: none;
  border-bottom: 1px dashed var(--faq-border);
  letter-spacing: 0.02em;
  line-height: 1.3;
  transition: background 0.25s ease, padding-left 0.25s ease;
}
.page-faq .faq-index__group-link:hover {
  background: rgba(255, 77, 0, 0.12);
  padding-left: 15px;
}
.page-faq .faq-index__list {
  display: none;
  list-style: none;
  margin: 0;
  padding: 6px 0 8px;
}
.page-faq .faq-index__link {
  display: block;
  padding: 5px 10px 5px 14px;
  color: var(--wt-concrete);
  font-size: 0.78rem;
  text-decoration: none;
  border-left: 2px solid transparent;
  line-height: 1.45;
  transition: color 0.2s, border-color 0.2s, padding-left 0.2s;
}
.page-faq .faq-index__link:hover {
  color: var(--wt-blue);
  border-left-color: var(--wt-blue);
  padding-left: 18px;
}
.page-faq .faq-index__contact {
  margin-top: auto;
  border-top: 1px solid var(--faq-border);
  padding-top: 14px;
}
.page-faq .faq-index__contact p {
  font-size: 0.78rem;
  color: var(--wt-silver);
  line-height: 1.6;
  margin: 10px 0 0;
}

/* ===== 右侧内容 ===== */
.page-faq .faq-content {
  min-width: 0;
}
.page-faq .faq-section {
  margin-bottom: clamp(36px, 5vw, 56px);
}
.page-faq .faq-section__heading {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--faq-border);
  font-family: var(--wt-font-heading);
  font-size: clamp(1.25rem, 2.4vw, 1.8rem);
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--wt-mist);
  scroll-margin-top: 20px;
}
.page-faq .faq-section__num {
  font-family: var(--wt-font-data);
  font-size: 1.5em;
  color: var(--wt-orange);
  line-height: 1;
}
.page-faq .faq-section__desc {
  color: var(--wt-concrete);
  font-size: 0.9rem;
  line-height: 1.6;
  margin: 0 0 16px;
}

/* ===== 折叠面板 ===== */
.page-faq .faq-item {
  background: linear-gradient(135deg, var(--wt-graphite) 0%, rgba(30, 35, 39, 0.9) 100%);
  border: 1px solid var(--faq-border);
  clip-path: var(--wt-clip-card);
  margin-bottom: 12px;
  scroll-margin-top: 20px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.page-faq .faq-item[open] {
  border-color: rgba(0, 212, 255, 0.35);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}
.page-faq .faq-item__summary {
  list-style: none;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 16px 14px;
  cursor: pointer;
}
.page-faq .faq-item__summary::-webkit-details-marker {
  display: none;
}
.page-faq .faq-item__summary::after {
  content: "+";
  margin-left: auto;
  flex-shrink: 0;
  font-family: var(--wt-font-data);
  font-size: 1rem;
  color: var(--wt-silver);
  padding-top: 2px;
  transition: color 0.2s ease, transform 0.3s ease;
}
.page-faq .faq-item[open] .faq-item__summary::after {
  content: "−";
  color: var(--wt-blue);
}
.page-faq .faq-item__summary:hover {
  background: var(--wt-speed-line);
}
.page-faq .faq-item__question {
  font-family: var(--wt-font-heading);
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  font-weight: 500;
  line-height: 1.35;
  color: var(--wt-mist);
  letter-spacing: 0.02em;
}
.page-faq .faq-tag {
  flex-shrink: 0;
  font-family: var(--wt-font-data);
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 4px 8px;
  margin-top: 2px;
  line-height: 1;
}
.page-faq .faq-tag--hot {
  background: var(--wt-orange);
  color: var(--wt-carbon);
  clip-path: polygon(0 0, 100% 0, calc(100% - 6px) 100%, 0 100%);
}
.page-faq .faq-tag--normal {
  background: transparent;
  color: var(--wt-blue);
  border: 1px solid var(--wt-blue);
  clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 6px 100%, 0 calc(100% - 6px));
}
.page-faq .faq-answer {
  border-top: 1px dashed var(--faq-border);
  padding: 14px 14px 18px;
  color: var(--wt-concrete);
  font-size: 0.9rem;
  line-height: 1.7;
}
.page-faq .faq-answer p + p {
  margin-top: 8px;
}
.page-faq .faq-answer a {
  color: var(--wt-blue);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}
.page-faq .faq-answer a:hover {
  color: var(--wt-mist);
}
.page-faq .faq-answer mark {
  background: rgba(255, 77, 0, 0.14);
  color: var(--wt-mist);
  border-bottom: 1px solid rgba(255, 77, 0, 0.55);
  padding: 0 2px;
  font-weight: 500;
}

/* ===== 信息图 ===== */
.page-faq .faq-figure {
  margin: 0 0 12px;
  border: 1px solid var(--faq-border);
  background: var(--wt-graphite);
  clip-path: var(--wt-clip-card);
  overflow: hidden;
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.page-faq .faq-figure__caption {
  padding: 8px 12px;
  font-family: var(--wt-font-data);
  font-size: 0.72rem;
  color: var(--wt-silver);
  border-top: 1px solid var(--faq-border);
  background: var(--wt-carbon);
}

/* ===== 底部引导 ===== */
.page-faq .faq-outro {
  margin-top: 44px;
  border: 1px solid var(--wt-orange);
  background: linear-gradient(135deg, rgba(255, 77, 0, 0.08), rgba(0, 212, 255, 0.04) 60%);
  clip-path: var(--wt-clip-card);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: flex-start;
}
.page-faq .faq-outro p {
  margin: 0;
  font-family: var(--wt-font-heading);
  font-size: 1.2rem;
  color: var(--wt-mist);
  line-height: 1.4;
}
.page-faq .faq-outro__actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* ===== 响应式 ===== */
@media (min-width: 768px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1fr) 240px;
    gap: 40px;
  }
  .page-faq .faq-item__summary {
    padding: 18px 20px;
  }
  .page-faq .faq-answer {
    padding: 16px 20px 20px;
  }
  .page-faq .faq-outro {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}
@media (max-width: 479px) {
  .page-faq .faq-index__nav {
    grid-template-columns: 1fr;
  }
}
@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 44px;
  }
  .page-faq .faq-index {
    position: sticky;
    top: 20px;
    padding: 20px;
  }
  .page-faq .faq-index__nav {
    display: block;
  }
  .page-faq .faq-index__group {
    margin-bottom: 12px;
  }
  .page-faq .faq-index__list {
    display: block;
  }
}