.page-faq {
  display: block;
  color: var(--text);
  font-family: var(--font-body);
  padding-bottom: clamp(64px, 10vw, 128px);
}

.page-faq .brand-term {
  color: var(--cyan);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  padding-top: clamp(24px, 5vw, 56px);
  padding-bottom: clamp(28px, 5vw, 52px);
}

.page-faq .faq-hero::after {
  content: "";
  display: block;
  height: 3px;
  margin-top: clamp(28px, 5vw, 48px);
  background: linear-gradient(90deg, var(--violet), var(--cyan));
  clip-path: polygon(0 0, 100% 0, calc(100% - 14px) 100%, 0 100%);
}

.page-faq .faq-hero-grid {
  display: grid;
  gap: 28px;
  align-items: center;
}

.page-faq .eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
}

.page-faq .faq-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 5.6vw, 46px);
  line-height: 1.26;
  letter-spacing: -0.01em;
  color: var(--text);
  max-width: 24ch;
}

.page-faq .faq-title span {
  display: block;
  margin-top: 8px;
  font-size: clamp(18px, 2.6vw, 24px);
  font-weight: 700;
  color: var(--cyan);
}

.page-faq .faq-lede {
  margin: 18px 0 0;
  max-width: 64ch;
  font-size: clamp(16px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--text-dim);
}

/* 环形计时 */
.page-faq .faq-ring {
  position: relative;
  width: 168px;
  height: 168px;
  justify-self: start;
}

.page-faq .faq-ring svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.page-faq .faq-ring .ring-track {
  fill: none;
  stroke: var(--line);
  stroke-width: 6;
}

.page-faq .faq-ring .ring-bar {
  fill: none;
  stroke: var(--cyan);
  stroke-width: 6;
  stroke-linecap: round;
  stroke-dasharray: 314;
  stroke-dashoffset: 110;
}

.page-faq .faq-ring-label {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
  font-family: var(--font-mono);
}

.page-faq .faq-ring-label b {
  display: block;
  font-size: 34px;
  font-weight: 600;
  line-height: 1;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-ring-label em {
  display: block;
  margin-top: 6px;
  font-style: normal;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--text-dim);
}

/* 速览数字条 */
.page-faq .faq-quick {
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-quick li {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 18px;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-left: 2px solid var(--violet);
  clip-path: var(--cut-sm);
}

.page-faq .qk-num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3.4vw, 30px);
  font-weight: 600;
  line-height: 1;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

.page-faq .qk-num em {
  font-style: normal;
  font-size: 14px;
  margin-left: 3px;
  color: var(--text-dim);
}

.page-faq .qk-label {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-dim);
}

/* ---------- 分组跳转 ---------- */
.page-faq .faq-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(8px, 2vw, 16px);
}

.page-faq .faq-jump a {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  padding: 8px 12px;
  color: var(--text-dim);
  text-decoration: none;
  border: 1px solid var(--line);
  clip-path: var(--cut-sm);
  transition: color 0.25s var(--ease), background-color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.page-faq .faq-jump a:hover,
.page-faq .faq-jump a:focus-visible {
  color: var(--ink-900);
  background: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 分组 ---------- */
.page-faq .faq-group {
  padding-top: clamp(52px, 8vw, 96px);
  scroll-margin-top: 88px;
}

.page-faq .faq-group-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 24px;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-faq .faq-num {
  flex: 0 0 auto;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(42px, 8vw, 76px);
  line-height: 0.85;
  color: transparent;
  -webkit-text-stroke: 1.4px var(--violet);
}

@supports not (-webkit-text-stroke: 1px #000) {
  .page-faq .faq-num {
    color: var(--violet);
    opacity: 0.45;
  }
}

.page-faq .faq-group-title {
  flex: 1 1 300px;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(22px, 3.4vw, 31px);
  line-height: 1.32;
  color: var(--text);
}

.page-faq .faq-group-lede {
  flex: 1 1 100%;
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}

/* ---------- 配图 ---------- */
.page-faq .faq-figure {
  margin: 0 0 clamp(20px, 3vw, 32px);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  background: var(--ink-800);
  clip-path: var(--cut);
}

.page-faq .faq-figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--text-dim);
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-list {
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-item {
  position: relative;
  padding: 20px 0 20px 22px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  bottom: 20px;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), var(--violet));
  opacity: 0;
  transform: scaleY(0.35);
  transform-origin: 50% 0;
  transition: opacity 0.32s var(--ease), transform 0.32s var(--ease);
}

.page-faq .faq-item[open]::before {
  opacity: 1;
  transform: scaleY(1);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  cursor: pointer;
  list-style: none;
  font-size: clamp(16px, 2vw, 18px);
  font-weight: 500;
  line-height: 1.65;
  color: var(--text);
  transition: color 0.22s var(--ease);
}

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

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

.page-faq .faq-item > summary:hover,
.page-faq .faq-item > summary:focus-visible {
  color: var(--cyan);
}

.page-faq .faq-item > summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1.4;
  color: var(--cyan);
}

.page-faq .faq-item[open] > summary::after {
  content: "\2212";
}

.page-faq .faq-answer {
  padding-top: 12px;
  max-width: 70ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--text-dim);
}

.page-faq .faq-answer p {
  margin: 0 0 12px;
}

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

.page-faq .faq-answer strong {
  font-weight: 600;
  color: var(--text);
}

.page-faq .faq-answer a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.42);
  transition: border-color 0.22s var(--ease);
}

.page-faq .faq-answer a:hover {
  border-bottom-color: var(--cyan);
}

/* 答案内数据条 */
.page-faq .faq-metrics {
  list-style: none;
  margin: 14px 0 4px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-metrics li {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.5;
  padding: 8px 12px;
  color: var(--text);
  background: var(--ink-700);
  border-left: 2px solid var(--amber);
  clip-path: var(--cut-sm);
}

.page-faq .faq-metrics b {
  font-weight: 600;
  color: var(--amber);
  font-variant-numeric: tabular-nums;
}

/* 费用档位 */
.page-faq .faq-tiers {
  list-style: none;
  margin: 16px 0 4px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-tiers li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 14px;
  background: var(--ink-700);
  border: 1px solid var(--line);
  clip-path: var(--cut-sm);
}

.page-faq .faq-tiers li.is-common {
  border-color: var(--amber);
  border-left-width: 2px;
}

.page-faq .tier-name {
  flex: 0 0 auto;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--text);
}

.page-faq .faq-tiers li.is-common .tier-name {
  color: var(--amber);
}

.page-faq .tier-desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-dim);
}

/* ---------- 结尾行动区 ---------- */
.page-faq .faq-outro {
  margin-top: clamp(8px, 2vw, 16px);
  padding: clamp(22px, 4vw, 36px);
  background: linear-gradient(135deg, rgba(108, 63, 197, 0.3), rgba(0, 229, 255, 0.1) 58%, transparent);
  border: 1px solid var(--line);
  clip-path: var(--cut);
}

.page-faq .faq-outro-lead {
  margin: 0 0 16px;
  max-width: 58ch;
  font-size: clamp(16px, 1.8vw, 18px);
  line-height: 1.85;
  color: var(--text);
}

.page-faq .faq-outro .faq-metrics {
  margin: 0 0 22px;
}

.page-faq .faq-outro-actions {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-faq .faq-tiers {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-faq .faq-quick {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1fr) 190px;
    gap: 48px;
  }

  .page-faq .faq-ring {
    justify-self: end;
  }

  .page-faq .faq-list,
  .page-faq .faq-figure,
  .page-faq .faq-outro {
    margin-left: 172px;
  }
}

/* ---------- 动效降级 ---------- */
.page-faq [data-reveal] {
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.page-faq [data-reveal].is-hidden {
  opacity: 0;
  transform: translateY(16px);
}

@media (prefers-reduced-motion: reduce) {
  .page-faq [data-reveal],
  .page-faq [data-reveal].is-hidden,
  .page-faq .faq-item::before,
  .page-faq .faq-item > summary,
  .page-faq .faq-jump a,
  .page-faq .faq-answer a {
    transition: none;
    opacity: 1;
    transform: none;
  }

  .page-faq .faq-item::before {
    opacity: 0;
  }

  .page-faq .faq-item[open]::before {
    opacity: 1;
  }
}