.page-faq {
  --faq-teal-soft: rgba(46, 127, 143, 0.09);
  --faq-teal-line: rgba(46, 127, 143, 0.32);
  --faq-red-soft: rgba(215, 38, 61, 0.07);
  --faq-shadow: 0 22px 44px -30px rgba(13, 11, 9, 0.6);
  background: var(--cream);
  color: var(--ink);
}

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

.page-faq a:focus-visible,
.page-faq summary:focus-visible,
.page-faq .tut-fav__btn:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

.page-faq .breadcrumb {
  padding-top: 18px;
}

/* ============ 首屏 ============ */
.page-faq .tut-hero {
  display: grid;
  gap: 26px;
  padding: 22px 0 34px;
  border-bottom: 1px solid var(--rule);
}

.page-faq .tut-hero h1 {
  margin: 10px 0 0;
  font-family: var(--sans);
  font-size: clamp(27px, 5.4vw, 46px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.01em;
}

.page-faq .tut-lead {
  margin: 14px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(26, 21, 18, 0.78);
}

.page-faq .tut-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-faq .tut-hero__index {
  padding: 20px;
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  box-shadow: var(--faq-shadow);
}

.page-faq .tut-hero__index-title {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--warm);
}

.page-faq .tut-hero__facts {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .tut-hero__facts li {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 11px 0;
  border-top: 1px solid var(--rule);
  font-size: 13px;
  line-height: 1.7;
  color: rgba(26, 21, 18, 0.75);
}

.page-faq .tut-hero__facts li:first-child {
  border-top: 0;
}

.page-faq .tut-hero__num {
  font-size: 19px;
  font-weight: 700;
  color: var(--teal);
  letter-spacing: -0.02em;
}

/* ============ 布局 ============ */
.page-faq .tut-layout {
  display: grid;
  gap: 30px;
  padding: 30px 0 56px;
}

.page-faq .tut-toc {
  padding-top: 16px;
  border-top: 2px solid var(--ink);
}

.page-faq .tut-toc__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .tut-toc__list a {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 9px 10px;
  border-left: 2px solid transparent;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  transition: border-color 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.page-faq .tut-toc__list a .mono {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--warm);
  transition: color 0.2s ease;
}

.page-faq .tut-toc__list a:hover,
.page-faq .tut-toc__list a:focus-visible {
  border-left-color: var(--red);
  background: var(--faq-teal-soft);
  color: var(--rust);
}

.page-faq .tut-toc__list a:hover .mono,
.page-faq .tut-toc__list a:focus-visible .mono {
  color: var(--teal);
}

.page-faq .tut-toc__note {
  margin: 18px 0 0;
  padding: 14px 0 0;
  border-top: 1px solid var(--rule);
  font-size: 13px;
  line-height: 1.8;
  color: var(--warm);
}

.page-faq .tut-toc__more {
  display: inline-block;
  margin-top: 12px;
  font-size: 13px;
  font-weight: 700;
  color: var(--teal);
  text-decoration: none;
  border-bottom: 1px solid var(--faq-teal-line);
  padding-bottom: 2px;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-faq .tut-toc__more:hover,
.page-faq .tut-toc__more:focus-visible {
  color: var(--rust);
  border-color: var(--rust);
}

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

/* ============ 章节 ============ */
.page-faq .tut-sec {
  padding: 28px 0 40px;
  border-top: 1px solid var(--rule);
  scroll-margin-top: calc(var(--header-h) + 20px);
}

.page-faq .tut-sec:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-faq .tut-sec__head {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 20px;
}

.page-faq .tut-sec__num {
  flex: none;
  padding: 3px 8px;
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0.14em;
  color: var(--teal);
  background: var(--faq-teal-soft);
  border: 1px solid var(--faq-teal-line);
  border-radius: var(--radius);
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-faq .tut-sec:target .tut-sec__num {
  background: var(--red);
  border-color: var(--red);
  color: var(--cream);
}

.page-faq .tut-sec__title h2 {
  margin: 0;
  font-size: clamp(20px, 3.4vw, 27px);
  font-weight: 800;
  line-height: 1.32;
}

.page-faq .tut-sec__title p {
  margin: 7px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--warm);
}

.page-faq .tut-sub {
  margin: 30px 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
  font-size: 16px;
  font-weight: 800;
  color: var(--ink);
}

/* ============ 步骤 ============ */
.page-faq .tut-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .tut-steps + .tut-tablewrap,
.page-faq .media-frame + .tut-steps {
  margin-top: 22px;
}

.page-faq .tut-step {
  padding: 16px 18px;
  border-left: 3px solid var(--teal);
  background: var(--paper);
  border-radius: 0 var(--radius) var(--radius) 0;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.page-faq .tut-step:hover {
  border-left-color: var(--red);
  background: #EFE7D8;
}

.page-faq .tut-step__idx {
  display: block;
  margin-bottom: 6px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--teal);
}

.page-faq .tut-step h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
}

.page-faq .tut-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(26, 21, 18, 0.78);
}

.page-faq .tut-step a {
  color: var(--rust);
  text-decoration: none;
  border-bottom: 1px solid rgba(228, 87, 46, 0.4);
}

.page-faq .tut-step a:hover {
  border-bottom-color: var(--rust);
}

/* ============ 表格 ============ */
.page-faq .tut-tablewrap {
  margin-top: 22px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-faq .tut-field-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-faq .tut-field-table__cap {
  padding: 0 0 10px;
  text-align: left;
  font-size: 13px;
  color: var(--warm);
}

.page-faq .tut-field-table th {
  padding: 10px 12px;
  text-align: left;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal);
  border-bottom: 1px solid var(--rule-strong);
  white-space: nowrap;
}

.page-faq .tut-field-table td {
  padding: 13px 12px;
  vertical-align: top;
  line-height: 1.7;
  border-bottom: 1px solid var(--rule);
  color: rgba(26, 21, 18, 0.82);
}

.page-faq .tut-field-table td:first-child {
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
}

.page-faq .tut-field-table tbody tr:nth-child(even) {
  background: rgba(232, 224, 210, 0.5);
}

/* ============ 提示条 ============ */
.page-faq .tut-tip {
  margin: 18px 0 0;
  padding: 12px 16px;
  border-left: 3px solid var(--red);
  background: var(--faq-red-soft);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(26, 21, 18, 0.82);
}

.page-faq .tut-tip--teal {
  border-left-color: var(--teal);
  background: var(--faq-teal-soft);
}

/* ============ 图文分栏 ============ */
.page-faq .tut-split {
  display: grid;
  gap: 20px;
}

.page-faq .tut-split__body h3 {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 800;
}

.page-faq .tut-split__body p {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.9;
  color: rgba(26, 21, 18, 0.78);
}

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

/* ============ 小卡片 ============ */
.page-faq .tut-cards {
  margin-top: 0;
}

.page-faq .tut-card {
  padding: 18px;
  border: 1px solid var(--rule);
  border-top: 3px solid var(--teal);
  background: var(--glass);
  border-radius: 0 0 var(--radius) var(--radius);
  transition: border-top-color 0.2s ease, transform 0.2s ease;
}

.page-faq .tut-card:hover {
  border-top-color: var(--red);
  transform: translateY(-2px);
}

.page-faq .tut-card__k {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--teal);
}

.page-faq .tut-card p:last-child {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(26, 21, 18, 0.78);
}

/* ============ 收藏演示 ============ */
.page-faq .tut-fav {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 22px;
  padding: 18px;
  border: 1px dashed var(--faq-teal-line);
  border-radius: var(--radius);
  background: var(--glass);
}

.page-faq .tut-fav__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
}

.page-faq .tut-fav__btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border: 1px solid var(--rule-strong);
  border-radius: 999px;
  background: var(--cream);
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.page-faq .tut-fav__btn:hover {
  border-color: var(--red);
  color: var(--rust);
}

.page-faq .tut-fav__icon::before {
  content: "☆";
  font-size: 16px;
  line-height: 1;
}

.page-faq .tut-fav__input:focus-visible + .tut-fav__btn {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

.page-faq .tut-fav__input:checked + .tut-fav__btn {
  background: var(--red);
  border-color: var(--red);
  color: var(--cream);
}

.page-faq .tut-fav__input:checked + .tut-fav__btn .tut-fav__icon::before {
  content: "★";
}

.page-faq .tut-fav__hint {
  flex: 1 1 200px;
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  color: var(--warm);
}

.page-faq .tut-note {
  margin: 20px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--rule);
  font-size: 13px;
  line-height: 1.85;
  color: var(--warm);
}

/* ============ 常见问题 ============ */
.page-faq .tut-faq {
  border-top: 1px solid var(--rule);
}

.page-faq .tut-faq details {
  border-bottom: 1px solid var(--rule);
}

.page-faq .tut-faq summary {
  position: relative;
  padding: 15px 40px 15px 0;
  list-style: none;
  cursor: pointer;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  transition: color 0.2s ease;
}

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

.page-faq .tut-faq summary::after {
  content: "+";
  position: absolute;
  right: 6px;
  top: 14px;
  font-family: var(--mono);
  font-size: 18px;
  line-height: 1;
  color: var(--teal);
  transition: color 0.2s ease;
}

.page-faq .tut-faq details[open] summary::after {
  content: "\2013";
  color: var(--red);
}

.page-faq .tut-faq summary:hover {
  color: var(--rust);
}

.page-faq .tut-faq details p {
  margin: 0 0 16px;
  padding-right: 26px;
  font-size: 14.5px;
  line-height: 1.9;
  color: rgba(26, 21, 18, 0.78);
}

/* ============ 相关入口 ============ */
.page-faq .tut-next {
  margin-top: 6px;
  padding-top: 28px;
  border-top: 2px solid var(--ink);
}

.page-faq .tut-next h2 {
  margin: 0 0 16px;
  font-size: 18px;
  font-weight: 800;
}

.page-faq .tut-next__grid {
  display: grid;
  gap: 12px;
}

.page-faq .tut-next__item {
  display: block;
  padding: 16px 18px;
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  background: var(--glass);
  color: var(--ink);
  text-decoration: none;
  transition: border-color 0.2s ease, background-color 0.2s ease, transform 0.2s ease;
}

.page-faq .tut-next__item:hover,
.page-faq .tut-next__item:focus-visible {
  border-color: var(--red);
  background: var(--cream);
  transform: translateY(-2px);
}

.page-faq .tut-next__k {
  display: block;
  margin-bottom: 8px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--teal);
}

.page-faq .tut-next__t {
  display: block;
  margin-bottom: 5px;
  font-size: 16px;
  font-weight: 800;
}

.page-faq .tut-next__d {
  display: block;
  font-size: 13px;
  line-height: 1.7;
  color: var(--warm);
}

/* ============ 响应式 ============ */
@media (min-width: 700px) {
  .page-faq .tut-next__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .tut-split {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: 32px;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-faq .tut-hero {
    grid-template-columns: minmax(0, 1.55fr) minmax(290px, 0.85fr);
    gap: 48px;
    align-items: end;
    padding: 34px 0 52px;
  }

  .page-faq .tut-hero__index {
    padding: 22px 22px 24px;
  }

  .page-faq .tut-sec {
    padding: 34px 0 48px;
  }
}

@media (min-width: 1000px) {
  .page-faq .tut-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
    padding: 46px 0 84px;
  }

  .page-faq .tut-toc {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

@media (max-width: 480px) {
  .page-faq .tut-hero__facts li {
    grid-template-columns: 48px minmax(0, 1fr);
  }

  .page-faq .tut-hero__num {
    font-size: 17px;
  }

  .page-faq .tut-step {
    padding: 14px 15px;
  }

  .page-faq .tut-fav {
    padding: 15px;
  }
}