.page-faq {
  --faq-max: 1180px;
  --faq-body: rgba(242, 245, 247, 0.78);
  --faq-dim: rgba(168, 179, 196, 0.8);

  background: var(--ink);
  color: var(--white);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-lede {
  padding-top: 20px;
  padding-bottom: 42px;
}

.page-faq .faq-lede h1 {
  margin: 12px 0 20px;
  max-width: 13.5em;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(30px, 7.6vw, 58px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-faq .faq-lede__text {
  max-width: 40em;
  font-size: 16px;
  line-height: 1.72;
  color: var(--faq-body);
}

.page-faq .faq-marks {
  display: flex;
  flex-wrap: wrap;
  gap: 16px 42px;
  margin: 32px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.page-faq .faq-marks li {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.page-faq .faq-marks .num {
  font-family: var(--font-num);
  font-weight: 900;
  font-size: 34px;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-faq .faq-marks__label {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--grey);
}

/* ---------- 通栏图 ---------- */
.page-faq .faq-band {
  margin: 0 auto;
  max-width: var(--faq-max);
  padding: 0 var(--gutter);
}

.page-faq .faq-band img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line-strong);
  filter: saturate(0.92) contrast(1.04);
}

/* ---------- 章节骨架 ---------- */
.page-faq .faq-section {
  padding-top: 58px;
}

.page-faq .section-head {
  margin: 0 0 28px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-strong);
}

.page-faq .section-head__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(22px, 4.2vw, 32px);
  line-height: 1.25;
  letter-spacing: -0.015em;
  color: var(--white);
}

.page-faq .section-head__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--faq-dim);
}

/* ---------- 三步 ---------- */
.page-faq .faq-steps {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  display: grid;
  gap: 8px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-step:first-child {
  border-top: 1px solid var(--line);
}

.page-faq .faq-step__num {
  display: block;
  font-family: var(--font-num);
  font-weight: 900;
  font-size: 62px;
  line-height: 0.84;
  letter-spacing: -0.05em;
  font-variant-numeric: tabular-nums;
  color: rgba(35, 229, 208, 0.16);
  -webkit-text-stroke: 1.5px var(--cyan);
}

.page-faq .faq-step__body h3 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-step__body p {
  margin: 0;
  max-width: 38em;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--faq-body);
}

/* ---------- 提示行 ---------- */
.page-faq .faq-tip {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  margin: 26px 0 0;
  padding: 16px 0;
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
  font-size: 14px;
  line-height: 1.65;
  color: var(--faq-body);
}

.page-faq .faq-acc + .faq-tip {
  margin-bottom: 34px;
}

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

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

.page-faq .faq-acc .accordion__item {
  border-bottom: 1px solid var(--line-strong);
}

.page-faq .faq-acc .accordion__trigger {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  width: 100%;
  padding: 20px 2px;
  background: transparent;
  border: 0;
  color: var(--white);
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  letter-spacing: -0.01em;
  text-align: left;
  cursor: pointer;
  transition: color var(--dur-state) var(--ease);
}

.page-faq .faq-acc .accordion__trigger:hover,
.page-faq .faq-acc .accordion__trigger:focus-visible {
  color: var(--cyan);
}

.page-faq .faq-acc .accordion__sign {
  position: relative;
  flex: none;
  width: 16px;
  height: 16px;
  margin-top: 4px;
}

.page-faq .faq-acc .accordion__sign::before,
.page-faq .faq-acc .accordion__sign::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform var(--dur-fold) var(--ease), opacity var(--dur-state) var(--ease);
}

.page-faq .faq-acc .accordion__sign::before {
  left: 0;
  top: 7px;
  width: 16px;
  height: 1.5px;
}

.page-faq .faq-acc .accordion__sign::after {
  left: 7px;
  top: 0;
  width: 1.5px;
  height: 16px;
}

.page-faq .faq-acc .accordion__trigger[aria-expanded="true"] .accordion__sign::after {
  transform: scaleY(0);
  opacity: 0;
}

.page-faq .faq-acc .accordion__panel {
  padding: 0 2px 22px;
}

.page-faq .faq-acc .accordion__panel p {
  margin: 0;
  max-width: 44em;
  font-size: 15px;
  line-height: 1.74;
  color: var(--faq-body);
}

/* ---------- 订阅 ---------- */
.page-faq .faq-sub {
  display: grid;
  gap: 32px;
}

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

.page-faq .faq-check {
  display: grid;
  grid-template-columns: 22px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 16px 18px;
  background: var(--paper);
  border: 1px solid var(--line-strong);
  color: var(--black);
  cursor: pointer;
  transition: border-color var(--dur-state) var(--ease), transform var(--dur-state) var(--ease);
}

.page-faq .faq-check:hover {
  transform: translateY(-2px);
}

.page-faq .faq-check input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-faq .faq-check__box {
  position: relative;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  border: 1.5px solid var(--black);
  background: transparent;
  transition: background var(--dur-state) var(--ease), border-color var(--dur-state) var(--ease);
}

.page-faq .faq-check input:checked + .faq-check__box {
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-faq .faq-check input:checked + .faq-check__box::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--black);
  border-bottom: 2px solid var(--black);
  transform: rotate(42deg);
}

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

.page-faq .faq-check__text strong {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.page-faq .faq-check__text span {
  display: block;
  font-size: 13.5px;
  line-height: 1.6;
  color: rgba(6, 11, 24, 0.74);
}

.page-faq .faq-sub__hint {
  margin: 18px 0 0;
  max-width: 40em;
  font-size: 14px;
  line-height: 1.7;
  color: var(--faq-dim);
}

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

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

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

.page-faq .faq-sub__media .figure__caption {
  margin-top: 12px;
  padding-left: 12px;
  border-left: 2px solid var(--amber);
  font-size: 13px;
  line-height: 1.65;
  color: var(--faq-dim);
}

/* ---------- 投稿与纠错 ---------- */
.page-faq .faq-submit {
  display: grid;
  gap: 1px;
  background: var(--line-strong);
  border: 1px solid var(--line-strong);
}

.page-faq .faq-card {
  padding: 26px 22px 28px;
  background: var(--deep);
}

.page-faq .faq-card h3 {
  margin: 16px 0 10px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 19px;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .faq-card p {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.74;
  color: var(--faq-body);
}

.page-faq .faq-card__act {
  margin-top: 20px;
}

.page-faq .faq-post-note {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--faq-dim);
}

.page-faq .faq-post-note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(35, 229, 208, 0.42);
  transition: border-color var(--dur-state) var(--ease);
}

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

/* ---------- 复制按钮 ---------- */
.page-faq .copy-btn {
  padding: 9px 15px;
  background: transparent;
  border: 1px solid rgba(35, 229, 208, 0.5);
  color: var(--cyan);
  font-family: var(--font-head);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background var(--dur-state) var(--ease), color var(--dur-state) var(--ease);
}

.page-faq .copy-btn:hover,
.page-faq .copy-btn:focus-visible {
  background: var(--cyan);
  color: var(--black);
}

/* ---------- 更新节奏刻度 ---------- */
.page-faq .faq-rail {
  margin: 0 0 30px;
  padding-top: 20px;
  border-top: 1px solid var(--line-strong);
}

.page-faq .faq-rail .rail__scale {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-rail .rail__node {
  position: relative;
  padding-top: 18px;
  border-top: 2px solid var(--line-strong);
  color: var(--grey);
}

.page-faq .faq-rail .rail__node::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber);
}

.page-faq .faq-rail .rail__node.is-active {
  border-top-color: var(--cyan);
}

.page-faq .faq-rail .rail__node.is-active::before {
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(35, 229, 208, 0.18);
}

.page-faq .faq-rail__t {
  display: block;
  margin-bottom: 5px;
  font-family: var(--font-num);
  font-weight: 900;
  font-size: 20px;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
  color: var(--white);
}

.page-faq .faq-rail__d {
  display: block;
  font-size: 13px;
  line-height: 1.55;
  color: var(--faq-dim);
}

.page-faq .faq-hours {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.page-faq .faq-hours p {
  margin: 0;
  max-width: 46em;
  font-size: 15px;
  line-height: 1.72;
  color: var(--faq-body);
}

.page-faq .faq-hours__act {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 收尾 ---------- */
.page-faq .faq-cta {
  margin-top: 66px;
  padding-top: 36px;
  padding-bottom: 72px;
  border-top: 1px solid var(--line-strong);
}

.page-faq .faq-cta__lead {
  margin: 0 0 20px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(20px, 3.6vw, 28px);
  line-height: 1.35;
  letter-spacing: -0.015em;
  color: var(--white);
}

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

/* ---------- 桌面栅格 ---------- */
@media (min-width: 768px) {
  .page-faq .faq-step {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 32px;
    align-items: start;
    padding: 30px 0;
  }

  .page-faq .faq-step__num {
    font-size: 96px;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-rail .rail__scale {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 24px;
  }

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

@media (min-width: 960px) {
  .page-faq .faq-sub {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 44px;
    align-items: start;
  }

  .page-faq .faq-section {
    padding-top: 72px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-check:hover {
    transform: none;
  }
}