/* ===== 问答中心页专属样式 ===== */
.page-faq {
  --faq-soft-green: rgba(56, 255, 154, 0.14);
  --faq-soft-red: rgba(255, 51, 85, 0.1);
  background: var(--bg-deep);
  color: var(--text);
  overflow-x: clip;
}

/* ---------- Hero ---------- */
.page-faq .faq-hero {
  padding: 0 0 clamp(36px, 6vw, 64px);
  background: linear-gradient(180deg, #0a141f 0%, var(--bg-deep) 72%);
}

.page-faq .faq-hero__art {
  overflow: hidden;
  border-radius: 0 0 32px 32px;
  background: var(--bg-panel);
}

.page-faq .faq-hero__art img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 1920 / 400;
  object-fit: cover;
  object-position: center 60%;
}

.page-faq .faq-hero__inner {
  padding-top: clamp(26px, 5vw, 48px);
}

.page-faq .faq-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 clamp(20px, 4vw, 28px);
  font-size: 13px;
  color: var(--muted);
}

.page-faq .faq-breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page-faq .faq-breadcrumb a:hover {
  color: var(--accent);
}

.page-faq .faq-breadcrumb [aria-current="page"] {
  color: var(--accent);
}

.page-faq .faq-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 10px;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.page-faq .faq-kicker__dot {
  width: 24px;
  height: 4px;
  border-radius: 999px;
  background: var(--alert);
  flex: 0 0 auto;
}

.page-faq .faq-hero__h1 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 5vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero__accent {
  color: var(--accent);
}

.page-faq .faq-hero__lead {
  max-width: 560px;
  margin: 0 0 clamp(20px, 4vw, 32px);
  color: var(--muted);
  font-size: clamp(15px, 2vw, 17px);
  line-height: 1.8;
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-hero__stat {
  min-width: 108px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: rgba(14, 42, 71, 0.55);
}

.page-faq .faq-hero__num {
  display: block;
  font-family: var(--font-data);
  font-size: 24px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1.1;
}

.page-faq .faq-hero__unit {
  display: block;
  margin-top: 6px;
  font-size: 12px;
  color: var(--muted);
}

.page-faq .faq-search {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 28px;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: rgba(22, 32, 46, 0.6);
  color: var(--muted);
}

.page-faq .faq-search svg {
  color: var(--accent);
  flex: 0 0 auto;
}

.page-faq .faq-search__label {
  font-size: 13px;
  letter-spacing: 0.08em;
}

.page-faq .faq-search__tag {
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  color: var(--muted);
  font-size: 13px;
  text-decoration: none;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-faq .faq-search__tag:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ---------- 通用章节 ---------- */
.page-faq .faq-hot,
.page-faq .faq-hierarchy,
.page-faq .faq-support {
  padding: clamp(40px, 6vw, 80px) 0;
}

.page-faq .faq-h2 {
  margin: 0 0 clamp(20px, 4vw, 36px);
  font-family: var(--font-display);
  font-size: clamp(22px, 3.4vw, 36px);
  line-height: 1.2;
}

/* ---------- 高频问题速览 ---------- */
.page-faq .faq-hot__grid {
  display: grid;
  gap: 14px;
}

.page-faq .faq-hot__card {
  position: relative;
  display: block;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(14, 42, 71, 0.72), rgba(22, 32, 46, 0.9));
  text-decoration: none;
  color: var(--text);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.page-faq .faq-hot__card:hover {
  transform: translateY(-3px);
  border-color: rgba(56, 255, 154, 0.5);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
}

.page-faq .faq-hot__no {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--alert);
}

.page-faq .faq-hot__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
}

.page-faq .faq-hot__desc {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

/* ---------- 标签页与折叠列表 ---------- */
.page-faq .faq-layout {
  display: block;
}

.page-faq .faq-cats {
  display: flex;
  gap: 10px;
  margin-bottom: 22px;
  padding: 0 0 6px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-faq .faq-cats::-webkit-scrollbar {
  display: none;
}

.page-faq .faq-tab {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--muted);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-faq .faq-tab:hover {
  color: var(--text);
  border-color: rgba(56, 255, 154, 0.35);
}

.page-faq .faq-tab.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: #06201c;
}

.page-faq .faq-tab__count {
  font-family: var(--font-data);
  font-size: 12px;
}

.page-faq .faq-tab.is-active .faq-tab__count {
  color: rgba(6, 32, 28, 0.7);
}

.page-faq .faq-panel {
  margin-bottom: 28px;
}

.page-faq .faq-panel__title {
  margin: 0 0 16px;
  padding-left: 14px;
  border-left: 4px solid var(--alert);
  font-family: var(--font-display);
  font-size: 18px;
  line-height: 1.4;
}

.page-faq .faq-item {
  margin-bottom: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-panel);
  overflow: hidden;
}

.page-faq .faq-item[open] {
  border-color: rgba(56, 255, 154, 0.42);
}

.page-faq .faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

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

.page-faq .faq-item__code {
  flex: 0 0 auto;
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--accent);
}

.page-faq .faq-item summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--faq-soft-green);
  color: var(--accent);
  font-family: var(--font-data);
  font-size: 16px;
  transition: transform 0.25s ease;
}

.page-faq .faq-item[open] summary::after {
  transform: rotate(45deg);
}

.page-faq .faq-item__body {
  padding: 4px 18px 20px;
  border-top: 1px dashed var(--border);
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

.page-faq .faq-item__body p {
  margin: 0 0 8px;
}

.page-faq .faq-item__body a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 255, 154, 0.35);
}

/* ---------- 联系支持 ---------- */
.page-faq .faq-support__wrap {
  position: relative;
  padding: clamp(20px, 4vw, 44px);
  border: 1px solid var(--border);
  border-radius: 32px;
  background: linear-gradient(135deg, var(--bg-panel) 0%, #091526 100%);
  overflow: hidden;
}

.page-faq .faq-support__wrap::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(56, 255, 154, 0.18) 0%, transparent 70%);
}

.page-faq .faq-support__grid {
  position: relative;
  display: grid;
  gap: 24px;
}

.page-faq .faq-support__list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-support__row {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: rgba(10, 17, 31, 0.5);
}

.page-faq .faq-support__type {
  flex: 0 0 56px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.page-faq .faq-support__value {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
}

.page-faq .faq-support__note {
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

.page-faq .faq-support__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .faq-support__img {
  max-width: 340px;
  margin: 0 auto;
}

.page-faq .faq-support__img img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  object-fit: cover;
}

/* ---------- 返回引导 ---------- */
.page-faq .faq-back {
  padding: 0 0 clamp(48px, 8vw, 96px);
}

.page-faq .faq-back__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 28px;
  border: 1px solid rgba(56, 255, 154, 0.3);
  border-radius: var(--radius-lg);
  background: linear-gradient(90deg, rgba(56, 255, 154, 0.12), rgba(14, 42, 71, 0.4));
}

.page-faq .faq-back__text {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
}

.page-faq .faq-back__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 768px) {
  .page-faq .faq-hot__grid {
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
  }

  .page-faq .faq-hot__card--feature {
    grid-column: span 4;
    padding: 28px;
  }

  .page-faq .faq-hot__card--rest {
    grid-column: span 2;
  }

  .page-faq .faq-support__grid {
    grid-template-columns: minmax(0, 1fr) 240px;
    align-items: center;
  }

  .page-faq .faq-support__img {
    max-width: none;
    margin: 0;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    gap: clamp(24px, 4vw, 48px);
    align-items: start;
  }

  .page-faq .faq-cats {
    flex-direction: column;
    align-items: stretch;
    margin-bottom: 0;
    padding: 0;
    overflow: visible;
    position: sticky;
    top: 20px;
  }

  .page-faq .faq-tab {
    border-radius: var(--radius-md);
    justify-content: space-between;
  }

  .page-faq .faq-panel {
    margin-bottom: 0;
  }
}