.page-faq {
  --faq-gap: clamp(20px, 3vw, 40px);
  --faq-pad: clamp(16px, 2.4vw, 24px);
  background:
    radial-gradient(110% 70% at 88% -8%, rgba(85, 199, 176, 0.14), transparent 62%),
    linear-gradient(180deg, var(--ink) 0%, var(--black) 100%);
  color: var(--white);
  padding-bottom: clamp(48px, 8vw, 96px);
}

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

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-block: clamp(14px, 3vw, 30px) clamp(28px, 5vw, 52px);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
}

.page-faq .faq-hero-copy {
  min-width: 0;
}

.page-faq h1 {
  margin: 10px 0 0;
  font-size: clamp(30px, 6.4vw, 58px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--white);
}

.page-faq .faq-lead {
  margin: 16px 0 0;
  max-width: 54ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.78;
  color: var(--mist);
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-faq .faq-figures {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin: 26px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-figures > div {
  min-width: 96px;
}

.page-faq .faq-figures dt {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--data);
  font-weight: 700;
}

.page-faq .faq-figures dd {
  margin: 6px 0 0;
  font-size: 14px;
  font-weight: 700;
  color: var(--white);
}

.page-faq .faq-figures .num {
  font-family: var(--font-mono);
  color: var(--yellow);
  font-size: 16px;
}

.page-faq .faq-hero-media {
  min-width: 0;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: linear-gradient(135deg, var(--panel), var(--ink));
}

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

/* ---------- 主体两栏 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: var(--faq-gap);
  padding-top: clamp(18px, 3vw, 32px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-body {
  min-width: 0;
}

/* 左栏索引 */
.page-faq .faq-index {
  min-width: 0;
  padding: var(--faq-pad);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--panel);
}

.page-faq .faq-index-title {
  margin: 0;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.18em;
  color: var(--yellow);
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-faq .faq-index-list li {
  flex: 0 0 auto;
}

.page-faq .faq-index-list a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 13px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  color: var(--mist);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.22s var(--ease), color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-faq .faq-index-list a:hover {
  background: var(--line);
  color: var(--white);
  border-color: var(--cyan);
}

.page-faq .faq-index-no {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--data);
}

.page-faq .faq-index-help {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
}

.page-faq .faq-index-help p {
  margin: 0 0 10px;
  font-size: 13px;
  color: var(--mist);
}

/* ---------- 筛选条 ---------- */
.page-faq .faq-filter {
  display: grid;
  gap: 12px;
  padding: var(--faq-pad);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(29, 74, 61, 0.6), rgba(18, 49, 41, 0.94));
}

.page-faq .faq-filter-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 16px;
}

.page-faq .faq-filter-label {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.16em;
  color: var(--yellow);
}

.page-faq .faq-filter-hint {
  font-size: 12px;
  color: var(--data);
}

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

.page-faq .faq-chips .chip {
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: transparent;
  color: var(--mist);
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.22s var(--ease), color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-faq .faq-chips .chip:hover {
  color: var(--white);
  border-color: var(--cyan);
}

.page-faq .faq-chips .chip[aria-pressed="true"] {
  background: var(--yellow);
  border-color: var(--yellow);
  color: var(--black);
}

/* ---------- 问答流 ---------- */
.page-faq .faq-stream {
  display: grid;
  gap: clamp(20px, 2.6vw, 32px);
  margin-top: clamp(20px, 2.8vw, 30px);
}

.page-faq .faq-group {
  min-width: 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-group:first-child {
  padding-top: 0;
  border-top: none;
}

.page-faq .faq-group-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.page-faq .faq-group-no {
  flex: 0 0 auto;
  padding: 3px 10px;
  border-radius: var(--r-pill);
  background: var(--yellow);
  color: var(--black);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.page-faq .faq-group-head h2 {
  margin: 0;
  font-size: clamp(19px, 2.6vw, 26px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  font-weight: 800;
  color: var(--white);
}

.page-faq .faq-item {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(18, 49, 41, 0.72);
  transition: border-color 0.24s var(--ease), background 0.24s var(--ease);
}

.page-faq .faq-item + .faq-item,
.page-faq .faq-item + .faq-path,
.page-faq .faq-path + .faq-item {
  margin-top: 10px;
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 16px;
  list-style: none;
  cursor: pointer;
  font-size: 15px;
  line-height: 1.6;
  font-weight: 700;
  color: var(--white);
}

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

.page-faq .faq-item summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1.2;
  color: var(--yellow);
}

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

.page-faq .faq-item:hover {
  border-color: var(--cyan);
}

.page-faq .faq-item[open] {
  border-color: var(--cyan);
  background: rgba(18, 49, 41, 0.96);
}

.page-faq .faq-item[open] summary {
  color: var(--yellow);
}

.page-faq .faq-mark {
  flex: 0 0 auto;
  width: 9px;
  height: 16px;
  margin-top: 4px;
  border-radius: 3px;
}

.page-faq .faq-mark--y {
  background: var(--yellow);
}

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

.page-faq .faq-answer {
  padding: 0 16px 18px 37px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

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

.page-faq .faq-answer p + p {
  margin-top: 10px;
}

.page-faq .faq-answer a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-answer a:hover {
  color: var(--yellow);
}

/* ---------- 旧版本路径卡 ---------- */
.page-faq .faq-path {
  display: grid;
  gap: 18px;
  margin-top: 12px;
  padding: var(--faq-pad);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(160deg, rgba(29, 74, 61, 0.55), rgba(11, 31, 26, 0.94));
}

.page-faq .faq-path-copy {
  min-width: 0;
}

.page-faq .faq-path h3 {
  margin: 0 0 8px;
  font-size: clamp(17px, 2.2vw, 20px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-path-copy > p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--mist);
}

.page-faq .faq-steps {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: rgba(7, 17, 14, 0.45);
}

.page-faq .faq-step-no {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--yellow);
}

.page-faq .faq-steps strong {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--white);
}

.page-faq .faq-steps p {
  margin: 4px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-path-media {
  min-width: 0;
  border-radius: var(--r-md);
  overflow: hidden;
}

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

/* ---------- 联系区块 ---------- */
.page-faq .faq-contact {
  display: grid;
  gap: 18px;
  margin-top: clamp(26px, 4vw, 44px);
  padding: clamp(20px, 3vw, 32px);
  border: 1px solid rgba(245, 200, 76, 0.65);
  border-radius: var(--r-lg);
  background: linear-gradient(120deg, rgba(245, 200, 76, 0.13), rgba(11, 31, 26, 0.94) 58%);
}

.page-faq .faq-contact-copy {
  min-width: 0;
}

.page-faq .faq-contact h2 {
  margin: 0;
  font-size: clamp(20px, 2.8vw, 28px);
  line-height: 1.28;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-contact-copy > p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-contact-note {
  font-size: 12.5px;
  color: var(--data);
  line-height: 1.7;
}

.page-faq .faq-contact-copy .btn {
  margin-top: 16px;
}

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

.page-faq .faq-contact-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
  padding: 10px 0;
  border-bottom: 1px dashed var(--line);
}

.page-faq .faq-contact-item:last-child {
  border-bottom: none;
}

.page-faq .faq-contact-key {
  flex: 0 0 64px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--data);
}

.page-faq .faq-contact-val {
  font-size: 14px;
  font-weight: 600;
  color: var(--white);
  word-break: break-word;
}

/* ---------- 筛选隐藏兜底 ---------- */
.page-faq .faq-stream .is-filtered-out {
  display: none !important;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
  }

  .page-faq .faq-steps {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 920px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: end;
  }

  .page-faq .faq-hero-media {
    aspect-ratio: 16 / 11;
  }

  .page-faq .faq-path {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: 258px minmax(0, 1fr);
    align-items: start;
    gap: clamp(24px, 3vw, 44px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-index-list {
    display: grid;
    gap: 4px;
    overflow-x: visible;
  }

  .page-faq .faq-index-list a {
    padding: 10px 12px;
    border-color: transparent;
    border-radius: var(--r-sm);
    font-size: 14px;
  }

  .page-faq .faq-answer {
    padding-left: 37px;
    font-size: 14.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}