.page-faq {
  padding: clamp(20px, 3vw, 40px) 0 clamp(80px, 10vw, 140px);
}

.page-faq .breadcrumbs {
  margin-bottom: clamp(20px, 3vw, 34px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  max-width: 900px;
  padding-bottom: clamp(30px, 4.5vw, 56px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero__kicker {
  display: inline-block;
  margin: 0 0 18px;
  padding: 5px 11px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--cyan);
  border: 1px solid var(--line-strong);
  background: rgba(22, 224, 200, 0.05);
}

.page-faq .faq-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-size: clamp(27px, 4.1vw, 43px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -0.015em;
  color: var(--mist);
}

.page-faq .faq-hero__lead {
  max-width: 64ch;
  margin: 0 0 26px;
  font-size: clamp(15px, 1.35vw, 17px);
  line-height: 1.8;
  color: var(--steel);
}

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

.page-faq .faq-fact {
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--amber);
  border: 1px solid rgba(255, 194, 75, 0.32);
  background: rgba(255, 194, 75, 0.07);
  white-space: nowrap;
}

/* ---------- 手册双栏骨架 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 4vw, 52px);
  margin-top: clamp(38px, 5.5vw, 70px);
}

.page-faq .faq-index {
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--mute);
}

.page-faq .faq-index .toc__list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-index .toc__link {
  display: block;
  padding: 9px 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--steel);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 0.22s var(--ease), background-color 0.22s var(--ease),
    border-color 0.22s var(--ease);
}

.page-faq .faq-index .toc__link:hover {
  color: var(--cyan);
  background: rgba(22, 224, 200, 0.06);
}

.page-faq .faq-index .toc__link[aria-current="true"] {
  color: var(--mist);
  border-left-color: var(--cyan);
  background: rgba(22, 224, 200, 0.09);
}

.page-faq .faq-index__note {
  margin: 16px 0 0;
  padding-left: 12px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mute);
  border-left: 1px solid var(--line-soft);
}

.page-faq .faq-body {
  display: grid;
  gap: clamp(56px, 8vw, 108px);
}

/* ---------- 面板微调 ---------- */
.page-faq .panel__title {
  letter-spacing: -0.01em;
}

.page-faq .panel__lead {
  max-width: 62ch;
}

.page-faq .panel a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

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

/* ---------- 步骤排版 ---------- */
.page-faq .steps {
  display: grid;
  gap: clamp(22px, 3vw, 34px);
}

.page-faq .steps--tight {
  margin-top: clamp(24px, 3vw, 34px);
  gap: clamp(18px, 2.4vw, 26px);
}

.page-faq .step {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
}

.page-faq .step__num {
  font-family: var(--font-mono);
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--cyan);
}

.page-faq .step__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .step__point {
  margin: 0;
  padding-left: 12px;
  font-size: 13px;
  line-height: 1.72;
  color: var(--mute);
  border-left: 2px solid var(--line);
}

@media (min-width: 720px) {
  .page-faq .step {
    grid-template-columns: 74px minmax(0, 1fr);
    gap: 4px 22px;
    align-items: start;
  }

  .page-faq .step__num {
    grid-row: span 2;
  }
}

/* ---------- 分栏与图 ---------- */
.page-faq .split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 3.4vw, 44px);
}

.page-faq .split--flip {
  margin-top: clamp(30px, 4vw, 48px);
}

.page-faq .figure {
  margin: 0;
}

.page-faq .figure__frame {
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
}

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

.page-faq .figure__cap {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mute);
}

@media (min-width: 960px) {
  .page-faq .split {
    grid-template-columns: minmax(0, 1.12fr) minmax(300px, 0.88fr);
    align-items: start;
  }

  .page-faq .split--flip {
    grid-template-columns: minmax(0, 1fr) minmax(300px, 0.72fr);
  }
}

/* ---------- 排名示意图 ---------- */
.page-faq .rank-sketch {
  display: block;
  width: 100%;
  max-width: 720px;
  height: auto;
  margin: 0 0 clamp(22px, 3vw, 34px);
  background: rgba(18, 51, 38, 0.55);
}

.page-faq .rs-frame {
  fill: none;
  stroke: var(--line);
  stroke-width: 1;
}

.page-faq .rs-tab {
  fill: rgba(22, 224, 200, 0.05);
  stroke: var(--line-soft);
  stroke-width: 1;
}

.page-faq .rs-tab--on {
  fill: rgba(22, 224, 200, 0.16);
  stroke: var(--cyan);
}

.page-faq .rs-season {
  fill: rgba(255, 194, 75, 0.09);
  stroke: rgba(255, 194, 75, 0.42);
  stroke-width: 1;
}

.page-faq .rs-t {
  font-family: var(--font-mono);
  font-size: 13px;
  fill: var(--steel);
}

.page-faq .rs-t--on {
  fill: var(--mist);
}

.page-faq .rs-t--dim {
  fill: var(--amber);
}

.page-faq .rs-line {
  stroke: var(--line-soft);
  stroke-width: 1;
}

.page-faq .rs-bar {
  fill: rgba(22, 224, 200, 0.4);
}

.page-faq .rs-bar--dim {
  fill: rgba(201, 214, 208, 0.22);
}

/* ---------- 订阅条件列表 ---------- */
.page-faq .cond-list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line-soft);
  background: var(--line-soft);
}

.page-faq .cond {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 15px 16px;
  background: rgba(22, 224, 200, 0.03);
}

.page-faq .cond__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-faq .cond__val {
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--steel);
}

@media (min-width: 700px) {
  .page-faq .cond {
    grid-template-columns: 118px minmax(0, 1fr);
    gap: 4px 22px;
    align-items: baseline;
    padding: 16px 20px;
  }
}

/* ---------- 提示条 ---------- */
.page-faq .note-strip {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 15px 18px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--steel);
  background: rgba(255, 194, 75, 0.055);
  border-left: 3px solid var(--amber);
}

.page-faq .note-strip strong {
  color: var(--amber);
  font-weight: 700;
}

/* ---------- 统计表 ---------- */
.page-faq .faq-table-cap {
  padding: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--mute);
  text-align: left;
}

.page-faq .data-table th[scope="row"] {
  font-weight: 600;
  color: var(--mist);
  white-space: nowrap;
}

.page-faq .data-table td:last-child {
  color: var(--mute);
  font-size: 13px;
  line-height: 1.6;
}

/* ---------- 小节正文 ---------- */
.page-faq .faq-sub {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-size: clamp(17px, 1.8vw, 20px);
  font-weight: 700;
  color: var(--mist);
  letter-spacing: -0.005em;
}

.page-faq .faq-p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--steel);
}

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

/* ---------- 折叠问答 ---------- */
.page-faq .fold-group {
  display: grid;
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-faq .fold-group--gap {
  margin-top: clamp(18px, 2.4vw, 26px);
}

.page-faq .fold {
  background: rgba(244, 247, 245, 0.02);
}

.page-faq .fold__summary {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--mist);
  transition: background-color 0.22s var(--ease);
}

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

.page-faq .fold__summary:hover {
  background: rgba(22, 224, 200, 0.06);
}

.page-faq .fold__num {
  flex: 0 0 auto;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mute);
}

.page-faq .fold__q {
  flex: 1 1 auto;
}

.page-faq .fold__icon {
  position: relative;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  margin-top: 4px;
}

.page-faq .fold__icon::before,
.page-faq .fold__icon::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform 0.22s var(--ease);
}

.page-faq .fold__icon::before {
  top: 7px;
  left: 0;
  width: 16px;
  height: 2px;
}

.page-faq .fold__icon::after {
  top: 0;
  left: 7px;
  width: 2px;
  height: 16px;
}

.page-faq .fold[open] .fold__icon::after {
  transform: scaleY(0);
}

.page-faq .fold[open] .fold__summary {
  background: rgba(22, 224, 200, 0.05);
}

.page-faq .fold__body {
  padding: 0 16px 18px 42px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--steel);
}

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

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

/* ---------- 联系收尾 ---------- */
.page-faq .outro-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.6vw, 28px);
}

.page-faq .outro-card {
  padding: clamp(18px, 2.4vw, 26px);
  border: 1px solid var(--line);
  background: linear-gradient(158deg, rgba(22, 224, 200, 0.12), rgba(11, 31, 23, 0) 64%);
}

.page-faq .outro-card__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-faq .outro-card__big {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: clamp(16px, 1.9vw, 22px);
  line-height: 1.4;
  color: var(--mist);
  word-break: break-word;
}

.page-faq .outro-card p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--steel);
}

.page-faq .outro-card .copy-btn {
  margin-right: 10px;
}

@media (min-width: 860px) {
  .page-faq .outro-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 桌面双栏 ---------- */
@media (min-width: 1000px) {
  .page-faq .faq-shell {
    grid-template-columns: minmax(200px, 246px) minmax(0, 1fr);
    gap: clamp(42px, 5vw, 88px);
    align-items: start;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--bar-h) + 26px);
    padding-bottom: 0;
    border-bottom: 0;
  }
}

/* ---------- 无障碍 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index .toc__link,
  .page-faq .fold__summary,
  .page-faq .fold__icon::before,
  .page-faq .fold__icon::after,
  .page-faq .panel a {
    transition: none;
  }
}
</main>