.page-faq {
  --faq-line: #DFE7F0;
  --faq-deep: #0B1B3D;
  --faq-blue: #1B3A6B;
  --faq-green: #C6FF00;
  --faq-orange: #FF7A00;
  --faq-mist: #F5F7FA;
  --faq-silver: #9CA3AF;
  background: var(--faq-mist);
  color: var(--faq-deep);
}

/* 面包屑窄带 */
.page-faq .faq-ribbon {
  background: var(--faq-deep);
  padding: 14px 0;
  border-bottom: 1px solid rgba(198, 255, 0, 0.25);
}

.page-faq .faq-ribbon-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 16px;
}

.page-faq .faq-ribbon-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--faq-green);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
}

/* 首屏 Hero */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(27, 58, 107, 0.93) 0%, rgba(11, 27, 61, 0.92) 55%, rgba(10, 14, 26, 0.96) 100%),
    repeating-linear-gradient(0deg, transparent 0 32px, rgba(198, 255, 0, 0.045) 32px 33px),
    repeating-linear-gradient(90deg, transparent 0 32px, rgba(198, 255, 0, 0.045) 32px 33px);
  color: var(--color-white);
  padding: 56px 0 100px;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 44px));
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, transparent 55%, rgba(198, 255, 0, 0.1) 55%, rgba(198, 255, 0, 0.02) 62%, transparent 62%);
  pointer-events: none;
}

.page-faq .faq-hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 40px;
}

.page-faq .faq-hero-copy {
  max-width: 720px;
}

.page-faq .faq-hero .section-label {
  color: var(--faq-green);
}

.page-faq .faq-hero h1 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(2rem, 4.6vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 10px 0 14px;
  color: var(--color-white);
}

.page-faq .faq-hero-lead {
  max-width: 36em;
  font-size: 1.05rem;
  line-height: 1.7;
  color: rgba(245, 247, 250, 0.78);
  margin: 0;
}

.page-faq .faq-hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.page-faq .faq-hero-stats .stat-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--color-white);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 6px 12px;
  backdrop-filter: blur(4px);
}

.page-faq .faq-hero-stats .data-number {
  color: var(--faq-green);
}

.page-faq .faq-hero-mark {
  flex: 0 0 auto;
  width: 190px;
  height: 190px;
  color: var(--faq-green);
  opacity: 0.35;
  transform: rotate(4deg);
}

/* 主体双栏 */
.page-faq .faq-body {
  padding: 32px 0 56px;
}

.page-faq .faq-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

.page-faq .faq-main {
  border-left: 4px solid var(--faq-blue);
  padding-left: clamp(14px, 2.5vw, 32px);
  min-width: 0;
}

/* 热门问题卡片 */
.page-faq .faq-hot {
  background: var(--color-white);
  border: 1px solid var(--faq-line);
  box-shadow: 0 8px 30px rgba(11, 27, 61, 0.06);
  padding: clamp(16px, 3vw, 32px);
}

.page-faq .faq-hot-img {
  margin: 0 0 24px;
}

.page-faq .faq-hot-img img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-faq .faq-hot-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px 20px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.page-faq .faq-hot-head h2 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(1.45rem, 2.5vw, 2.1rem);
  line-height: 1.15;
  letter-spacing: -0.015em;
  color: var(--faq-deep);
  margin: 6px 0 0;
}

/* 问题组 */
.page-faq .faq-group + .faq-group {
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px dashed var(--faq-line);
}

.page-faq .faq-group-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 6px;
  padding: 0 0 10px;
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1rem;
  letter-spacing: 0.04em;
  color: var(--faq-deep);
  text-transform: uppercase;
}

.page-faq .faq-group-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--faq-line) 0 4px, transparent 4px 8px);
}

.page-faq .faq-group-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--faq-orange);
}

/* details 手风琴 */
.page-faq .faq-item {
  border-bottom: 1px solid var(--faq-line);
}

.page-faq .faq-item:last-child {
  border-bottom: 0;
}

.page-faq .faq-item summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 8px 18px 16px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.97rem;
  line-height: 1.4;
  color: var(--faq-deep);
  border-left: 3px solid transparent;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

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

.page-faq .faq-item summary:hover {
  border-left-color: var(--faq-orange);
  background: rgba(255, 122, 0, 0.045);
}

.page-faq .faq-item[open] summary {
  border-left-color: var(--faq-green);
  color: var(--faq-deep);
}

.page-faq .faq-item[open] summary:hover {
  border-left-color: var(--faq-orange);
}

.page-faq .faq-arrow {
  flex: 0 0 10px;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--faq-blue);
  border-bottom: 2px solid var(--faq-blue);
  transform: rotate(45deg);
  transition: transform 0.3s ease, border-color 0.2s ease;
}

.page-faq .faq-item[open] .faq-arrow {
  transform: rotate(-135deg);
  border-color: var(--faq-orange);
}

.page-faq .faq-answer {
  padding: 2px 16px 24px 19px;
}

.page-faq .faq-answer p {
  margin: 8px 0 0;
  max-width: 62ch;
  line-height: 1.75;
  font-size: 0.94rem;
  color: rgba(11, 27, 61, 0.82);
}

.page-faq .faq-answer p + p {
  margin-top: 6px;
}

/* 侧栏统一样式 */
.page-faq .faq-side {
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 0;
}

.page-faq .faq-side-box {
  background: var(--color-white);
  border: 1px solid var(--faq-line);
  padding: 20px;
}

.page-faq .faq-side-title {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 0.98rem;
  letter-spacing: 0.02em;
  color: var(--faq-deep);
  margin: 0 0 14px;
}

/* 搜索帮助 */
.page-faq .faq-search-box {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 2px solid var(--faq-blue);
  padding: 8px 12px;
  background: var(--color-white);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.page-faq .faq-search-box:focus-within {
  border-color: var(--faq-orange);
  box-shadow: 0 0 0 3px rgba(255, 122, 0, 0.14);
}

.page-faq .faq-search-box svg {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  color: var(--faq-blue);
}

.page-faq .faq-search-box:focus-within svg {
  color: var(--faq-orange);
}

.page-faq .faq-search-box input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: 0;
  background: transparent;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--faq-deep);
}

.page-faq .faq-search-box input::placeholder {
  color: var(--faq-silver);
}

.page-faq .faq-search-hint {
  font-size: 0.82rem;
  color: var(--faq-silver);
  margin: 14px 0 8px;
  letter-spacing: 0.02em;
}

.page-faq .faq-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-tags .badge {
  display: inline-flex;
  align-items: center;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 5px 10px;
  background: var(--faq-mist);
  border: 1px solid var(--faq-line);
  color: var(--faq-deep);
  text-decoration: none;
  transition: background-color 0.22s ease, border-color 0.22s ease, transform 0.22s ease;
}

.page-faq .faq-tags .badge:hover {
  background: var(--faq-green);
  border-color: var(--faq-green);
  transform: translateY(-1px);
}

/* 目录锚点 */
.page-faq .faq-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-toc-list li + li {
  border-top: 1px dashed var(--faq-line);
}

.page-faq .faq-toc-list a {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 2px;
  color: var(--faq-deep);
  text-decoration: none;
  font-size: 0.94rem;
  font-weight: 600;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.page-faq .faq-toc-list a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  width: 0;
  background: var(--faq-orange);
  transition: width 0.25s ease;
}

.page-faq .faq-toc-list a:hover {
  color: var(--faq-orange);
  padding-left: 6px;
}

.page-faq .faq-toc-list a:hover::after {
  width: 100%;
}

.page-faq .faq-toc-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--faq-orange);
}

/* 服务状态 */
.page-faq .faq-status {
  border: 0;
  border-left: 4px solid var(--faq-green);
  background: var(--faq-deep);
  color: var(--color-white);
  padding: 20px;
}

.page-faq .faq-status .faq-side-title {
  color: var(--color-white);
}

.page-faq .faq-status-desc {
  font-size: 0.94rem;
  line-height: 1.6;
  color: rgba(245, 247, 250, 0.8);
  margin: 8px 0 16px;
}

.page-faq .faq-status-desc strong {
  color: var(--faq-green);
  font-weight: 700;
}

.page-faq .faq-status-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(245, 247, 250, 0.14);
}

.page-faq .faq-status-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid rgba(245, 247, 250, 0.1);
}

.page-faq .faq-status-list span {
  font-size: 0.86rem;
  color: rgba(245, 247, 250, 0.65);
}

.page-faq .faq-status-list .data-number {
  color: var(--faq-green);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1rem;
}

.page-faq .faq-status-head {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
  color: var(--faq-green);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
}

/* 侧栏联系提示 */
.page-faq .faq-side-note {
  border: 0;
  border-left: 4px solid var(--faq-orange);
  background: var(--faq-green);
  color: var(--faq-deep);
  padding: 20px;
}

.page-faq .faq-side-note p {
  margin: 6px 0;
  font-size: 0.9rem;
  line-height: 1.6;
}

.page-faq .faq-side-note p:first-child {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 1.02rem;
}

.page-faq .faq-side-note .btn {
  margin-top: 12px;
  width: 100%;
}

/* 联系支持大区块 */
.page-faq .faq-support {
  position: relative;
  overflow: hidden;
  background: var(--faq-deep);
  color: var(--color-white);
  padding: 64px 0 72px;
}

.page-faq .faq-support::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(0deg, transparent 0 48px, rgba(198, 255, 0, 0.04) 48px 49px),
    repeating-linear-gradient(90deg, transparent 0 48px, rgba(198, 255, 0, 0.04) 48px 49px);
  pointer-events: none;
}

.page-faq .faq-support::after {
  content: "";
  position: absolute;
  top: -120px;
  right: -80px;
  width: 300px;
  height: 300px;
  background: rgba(255, 122, 0, 0.18);
  transform: rotate(45deg);
  pointer-events: none;
}

.page-faq .faq-support-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.page-faq .faq-support .section-label {
  color: var(--faq-green);
}

.page-faq .faq-support h2 {
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  line-height: 1.16;
  letter-spacing: -0.015em;
  color: var(--color-white);
  margin: 10px 0 12px;
}

.page-faq .faq-support-copy > p {
  max-width: 44em;
  color: rgba(245, 247, 250, 0.75);
  line-height: 1.65;
  margin: 0 0 20px;
}

.page-faq .faq-contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 560px;
}

.page-faq .faq-contact-list li {
  display: flex;
  align-items: baseline;
  gap: 18px;
  padding: 13px 0;
  border-bottom: 1px solid rgba(245, 247, 250, 0.14);
}

.page-faq .faq-contact-label {
  flex: 0 0 76px;
  font-size: 0.85rem;
  color: rgba(245, 247, 250, 0.6);
}

.page-faq .faq-contact-value {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--faq-green);
  word-break: break-word;
}

.page-faq .faq-contact-note {
  margin-top: 14px;
  font-size: 0.8rem;
  color: rgba(245, 247, 250, 0.5);
}

.page-faq .faq-more-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-faq .faq-support-visual {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.page-faq .faq-support-visual .img-frame {
  margin: 0;
}

.page-faq .faq-support-visual .img-frame img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-faq .faq-support-visual .aside-note {
  background: rgba(198, 255, 0, 0.1);
  border-left: 3px solid var(--faq-green);
  color: rgba(245, 247, 250, 0.85);
  padding: 14px 16px;
}

.page-faq .faq-support-visual .aside-note p {
  font-size: 0.88rem;
  line-height: 1.6;
  margin: 0;
}

/* 平板与桌面断点 */
@media (min-width: 768px) {
  .page-faq .faq-hero {
    padding: 72px 0 116px;
  }

  .page-faq .faq-main {
    border-left-width: 6px;
  }

  .page-faq .faq-hot {
    padding: 28px;
  }

  .page-faq .faq-support-grid {
    grid-template-columns: 1.15fr 1fr;
    gap: 48px;
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-grid {
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 44px;
  }

  .page-faq .faq-side {
    position: sticky;
    top: 24px;
    align-self: start;
    max-height: calc(100vh - 48px);
    overflow-y: auto;
  }

  .page-faq .faq-hero-mark {
    opacity: 0.45;
  }
}

@media (max-width: 767px) {
  .page-faq .faq-hero-mark {
    display: none;
  }
}