.page-faq {
  --faq-radius: 0px;
}

.page-faq [id] {
  scroll-margin-top: 96px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  background-color: var(--sand);
  background-image: repeating-linear-gradient(
    115deg,
    rgba(38, 38, 42, 0.05) 0 1px,
    transparent 1px 9px
  );
  padding-block: clamp(20px, 4vw, 40px) clamp(26px, 4.5vw, 48px);
  border-bottom: var(--bd);
}

.page-faq .faq-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  margin-top: clamp(16px, 3vw, 30px);
}

.page-faq .faq-hero__h1 {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.06;
  font-size: clamp(2rem, 6.2vw, 4rem);
  color: var(--ink);
  margin: 12px 0 0;
  max-width: 20ch;
}

.page-faq .faq-hero__mark {
  display: inline-block;
  background: var(--sunset);
  color: var(--paper);
  padding: 0 0.18em 0.06em;
  transform: skewX(-4deg);
}

.page-faq .faq-hero__sub {
  margin-top: 18px;
  font-size: 17px;
  line-height: 1.8;
  color: var(--ink);
  max-width: 46ch;
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--ink-2);
  text-transform: uppercase;
}

.page-faq .faq-hero__dot {
  width: 8px;
  height: 8px;
  background: var(--turf);
  flex: none;
}

.page-faq .faq-hero__aside {
  display: none;
}

.page-faq .faq-jump {
  margin-top: clamp(22px, 3.5vw, 36px);
}

.page-faq .faq-jump .chip {
  border: var(--bd);
  background: var(--paper);
  text-decoration: none;
  font-weight: 700;
}

.page-faq .faq-jump .chip:hover,
.page-faq .faq-jump .chip:focus-visible {
  background: var(--sunset);
  color: var(--paper);
  border-color: var(--ink);
}

/* ---------- 区块标签头 ---------- */
.page-faq .faq-group__head {
  max-width: 62ch;
  margin-bottom: clamp(18px, 2.6vw, 28px);
}

.page-faq .faq-group__head h2 {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.015em;
  line-height: 1.12;
  font-size: clamp(1.45rem, 3.4vw, 2.15rem);
  color: var(--ink);
  margin: 10px 0 0;
}

.page-faq .faq-group__note {
  margin-top: 10px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-2);
}

/* ---------- 短答卡片 ---------- */
.page-faq .faq-briefs {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}

.page-faq .faq-brief {
  padding: 18px 18px 20px;
  border: var(--bd);
  border-top: 6px solid var(--ink);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-faq .faq-brief__q {
  font-size: 17px;
  font-weight: 800;
  line-height: 1.45;
  color: var(--ink);
}

.page-faq .faq-brief__a {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-2);
}

.page-faq .faq-brief__hl {
  color: var(--ink);
  background: var(--volt);
  padding: 0 3px;
  font-weight: 700;
}

/* ---------- 主栏 + 侧栏骨架 ---------- */
.page-faq .faq-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  align-items: start;
}

.page-faq .faq-side {
  display: grid;
  gap: 14px;
  order: -1;
}

.page-faq .faq-side__card {
  border: var(--bd);
  background: var(--paper);
  box-shadow: var(--shadow-mid);
  padding: 20px 18px 22px;
}

.page-faq .faq-side__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.3rem;
  letter-spacing: -0.01em;
  line-height: 1.2;
  color: var(--ink);
  margin: 10px 0 0;
}

.page-faq .faq-side__lead {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-2);
}

.page-faq .faq-check {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
}

.page-faq .faq-check__item {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  padding: 12px 0;
  border-top: 1px solid var(--hairline);
  cursor: pointer;
}

.page-faq .faq-check li:first-child .faq-check__item {
  border-top: 0;
}

.page-faq .faq-check__box {
  flex: none;
  width: 22px;
  height: 22px;
  border: var(--bd);
  background: var(--sand);
  display: grid;
  place-items: center;
  margin-top: 1px;
  transition: background-color 140ms linear;
}

.page-faq .faq-check__input:checked + .faq-check__box {
  background: var(--turf);
}

.page-faq .faq-check__input:checked + .faq-check__box::after {
  content: "";
  width: 11px;
  height: 6px;
  border-left: 3px solid var(--paper);
  border-bottom: 3px solid var(--paper);
  transform: rotate(-45deg) translate(1px, -2px);
}

.page-faq .faq-check__input:focus-visible + .faq-check__box {
  outline: 3px solid var(--volt);
  outline-offset: 2px;
}

.page-faq .faq-check__text {
  font-size: 15px;
  line-height: 1.65;
  color: var(--ink);
}

.page-faq .faq-check__num {
  font-weight: 700;
  font-size: 0.78rem;
  color: var(--sunset-ink);
  margin-right: 6px;
}

.page-faq .faq-check__input:checked ~ .faq-check__text {
  color: var(--ink-2);
  text-decoration: line-through;
  text-decoration-color: rgba(38, 38, 42, 0.4);
}

.page-faq .faq-side__links {
  display: grid;
  gap: 10px;
}

.page-faq .faq-side__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 15px;
  border: var(--bd);
  background: var(--sand-deep);
  color: var(--ink);
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  transition: transform 150ms ease, background-color 150ms linear;
}

.page-faq .faq-side__link::after {
  content: "→";
  font-family: var(--font-mono);
  color: var(--sunset-ink);
}

.page-faq .faq-side__link:hover,
.page-faq .faq-side__link:focus-visible {
  background: var(--sunset);
  color: var(--paper);
  transform: translateY(-3px);
}

.page-faq .faq-side__link:hover::after,
.page-faq .faq-side__link:focus-visible::after {
  color: var(--paper);
}

/* ---------- 手风琴问答 ---------- */
.page-faq .faq-list {
  display: grid;
  gap: 12px;
}

.page-faq .faq-item {
  border: var(--bd);
  border-left: 6px solid var(--ink-2);
  background: var(--paper);
  transition: border-left-color 150ms linear, box-shadow 150ms linear;
}

.page-faq .faq-item[open] {
  border-left-color: var(--sunset);
  box-shadow: var(--shadow-soft);
}

.page-faq .faq-item__q {
  display: flex;
  align-items: baseline;
  gap: 13px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: 16.5px;
  line-height: 1.5;
  color: var(--ink);
}

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

.page-faq .faq-item__q::marker {
  content: "";
}

.page-faq .faq-item__q::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.3rem;
  line-height: 1;
  color: var(--sunset-ink);
  flex: none;
}

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

.page-faq .faq-item__idx {
  flex: none;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--ink-2);
}

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

.page-faq .faq-item__a {
  padding: 0 18px 18px 18px;
  border-top: 1px solid var(--hairline);
  margin-top: 0;
  padding-top: 14px;
}

.page-faq .faq-item__a p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
  max-width: 64ch;
}

.page-faq .faq-item__a a,
.page-faq .faq-more a {
  color: var(--sunset-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-item__a a:hover,
.page-faq .faq-more a:hover {
  background: var(--volt);
  color: var(--ink);
}

/* ---------- 配图 ---------- */
.page-faq .faq-fig {
  margin: clamp(20px, 3vw, 30px) 0 0;
  border: var(--bd);
  background: var(--paper);
  box-shadow: var(--shadow-mid);
}

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

/* ---------- 中段对比牌 ---------- */
.page-faq .faq-compare {
  margin-block: clamp(40px, 6vw, 72px);
  background: var(--ink);
  color: var(--sand);
  padding-block: clamp(44px, 6.5vw, 78px);
  clip-path: polygon(0 24px, 100% 0, 100% calc(100% - 24px), 0 100%);
}

.page-faq .faq-compare .tag {
  color: var(--sand);
}

.page-faq .faq-compare .tag__num {
  color: var(--volt);
}

.page-faq .faq-compare__title {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.015em;
  line-height: 1.14;
  font-size: clamp(1.4rem, 3.2vw, 2.05rem);
  color: var(--paper);
  margin: 10px 0 clamp(20px, 3vw, 30px);
  max-width: 26ch;
}

.page-faq .faq-compare__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}

.page-faq .faq-compare__col {
  border: 2px solid var(--hairline-light);
  padding: 18px 18px 8px;
}

.page-faq .faq-compare__badge {
  display: inline-block;
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.06em;
  padding: 4px 10px;
}

.page-faq .faq-compare__badge--old {
  background: var(--brick);
  color: var(--paper);
}

.page-faq .faq-compare__badge--new {
  background: var(--volt);
  color: var(--ink);
}

.page-faq .faq-compare__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
}

.page-faq .faq-compare__list li {
  position: relative;
  padding: 12px 0 12px 16px;
  border-top: 1px solid var(--hairline-light);
  font-size: 15px;
  line-height: 1.7;
  color: var(--sand);
}

.page-faq .faq-compare__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  width: 7px;
  height: 7px;
  background: var(--sunset);
}

/* ---------- 赛前准备步骤 ---------- */
.page-faq .faq-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: none;
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  padding: 18px 0;
  border-top: 1px solid var(--hairline);
}

.page-faq .faq-steps li:last-child {
  border-bottom: 1px solid var(--hairline);
}

.page-faq .faq-steps__num {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--sunset);
  line-height: 1.4;
}

.page-faq .faq-steps h3 {
  font-size: 17px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 6px;
}

.page-faq .faq-steps p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-2);
  max-width: 62ch;
}

.page-faq .faq-pitfalls {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
  margin-top: clamp(22px, 3vw, 32px);
}

.page-faq .faq-pitfall {
  border: var(--bd);
  border-left: 6px solid var(--brick);
  background: var(--sand);
  padding: 16px 18px 18px;
}

.page-faq .faq-pitfall h3 {
  font-size: 16px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 8px;
}

.page-faq .faq-pitfall p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-2);
}

/* ---------- 联系 ---------- */
.page-faq .faq-contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap);
}

.page-faq .faq-contact__item {
  border: var(--bd);
  background: var(--paper);
  padding: 16px 18px 18px;
  border-top: 6px solid var(--sunset);
}

.page-faq .faq-contact__label {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-2);
}

.page-faq .faq-contact__value {
  margin-top: 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  word-break: break-word;
}

.page-faq .faq-contact__note {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-2);
}

.page-faq .faq-contact__tips {
  list-style: none;
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-top: var(--bd);
}

.page-faq .faq-contact__tips li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--hairline);
  font-size: 15px;
  color: var(--ink);
}

.page-faq .faq-contact__tip-num {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--turf);
}

.page-faq .faq-more {
  margin-top: 18px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-2);
  max-width: 64ch;
}

/* ---------- 窄屏以上 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-briefs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-compare__grid,
  .page-faq .faq-pitfalls,
  .page-faq .faq-contact__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-contact__grid > :first-child {
    grid-column: 1 / -1;
  }
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 960px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 2fr);
    align-items: start;
  }

  .page-faq .faq-hero__h1 {
    font-size: clamp(2.6rem, 5vw, 4.1rem);
  }

  .page-faq .faq-hero__aside {
    display: flex;
    justify-content: flex-end;
    padding-top: 8px;
  }

  .page-faq .faq-shell {
    grid-template-columns: minmax(0, 1fr) 340px;
  }

  .page-faq .faq-side {
    grid-column: 2;
    grid-row: 1;
    position: sticky;
    top: 96px;
    order: 0;
  }

  .page-faq .faq-main {
    grid-column: 1;
    grid-row: 1;
    min-width: 0;
  }

  .page-faq .faq-briefs {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-brief__q {
    font-size: 16px;
  }
}

@media (min-width: 1100px) {
  .page-faq .faq-briefs {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .faq-contact__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-contact__grid > :first-child {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-side__link,
  .page-faq .faq-item,
  .page-faq .faq-check__box {
    transition: none;
  }

  .page-faq .faq-side__link:hover,
  .page-faq .faq-side__link:focus-visible {
    transform: none;
  }
}