/* ============================================================
   使用教程 /tutorial/
   ============================================================ */

.page-faq .faq-hero {
  padding-block: clamp(2.25rem, 6vw, 4.5rem) clamp(1.5rem, 4vw, 2.75rem);
  border-bottom: 1px solid var(--hair);
}

.page-faq .faq-hero .breadcrumbs {
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

.page-faq .faq-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2rem, 7vw, 3.9rem);
  line-height: 1.06;
  letter-spacing: -.012em;
  margin: .55rem 0 1rem;
  max-width: 20ch;
}

.page-faq .faq-hero__lead {
  max-width: 64ch;
  margin: 0;
  font-size: clamp(1rem, 2.2vw, 1.08rem);
  line-height: 1.85;
  color: var(--fg);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.6rem;
  margin-top: clamp(1.25rem, 3vw, 1.9rem);
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-faq .faq-hero__meta-val {
  color: var(--signal);
  font-weight: 700;
}

/* ---------- 主体：目录 + 步骤 ---------- */

.page-faq .tutorial-body {
  padding-block: clamp(2rem, 5vw, 3.5rem) clamp(3rem, 7vw, 5rem);
}

.page-faq .path-layout {
  display: grid;
  gap: 1.75rem;
}

@media (min-width: 960px) {
  .page-faq .path-layout {
    grid-template-columns: minmax(0, 200px) minmax(0, 1fr);
    gap: clamp(2.25rem, 4vw, 4rem);
    align-items: start;
  }
}

/* 步骤目录 */

.page-faq .path-toc__list {
  display: flex;
  gap: .5rem;
  margin: 0;
  padding: 0 0 .45rem;
  list-style: none;
  overflow-x: auto;
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.page-faq .path-toc__list::-webkit-scrollbar {
  display: none;
}

.page-faq .path-toc__link {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  white-space: nowrap;
  padding: .5rem .9rem;
  border: 1px solid var(--hair);
  border-radius: var(--radius-pill);
  color: var(--fg);
  font-size: .82rem;
  line-height: 1.2;
  text-decoration: none;
  transition: border-color .25s var(--ease), background-color .25s var(--ease), color .25s var(--ease);
}

.page-faq .path-toc__link:hover,
.page-faq .path-toc__link:focus-visible {
  border-color: var(--signal);
  background: var(--signal-soft);
  color: #fff;
}

.page-faq .path-toc__num {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  color: var(--signal);
}

@media (min-width: 960px) {
  .page-faq .path-toc {
    position: sticky;
    top: 6rem;
    align-self: start;
  }

  .page-faq .path-toc__list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .path-toc__link {
    justify-content: flex-start;
    width: 100%;
    padding: .55rem .95rem;
  }
}

/* ---------- 步骤卡片 ---------- */

.page-faq .faq-step {
  position: relative;
  margin-top: 2.5rem;
  scroll-margin-top: 6rem;
}

.page-faq .faq-step:first-child {
  margin-top: 1.5rem;
}

.page-faq .faq-step__badge {
  position: absolute;
  top: -.85rem;
  left: clamp(.9rem, 3vw, 1.9rem);
  z-index: 2;
  display: inline-flex;
  align-items: center;
  padding: .3rem .85rem;
  border-radius: var(--radius-pill);
  background: var(--signal);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
  white-space: nowrap;
}

.page-faq .faq-step__card {
  background: var(--paper);
  color: var(--ink);
  border-radius: var(--radius-lg);
  padding: clamp(1.9rem, 4vw, 2.6rem) clamp(1.1rem, 3.5vw, 2.3rem) clamp(1.5rem, 3.5vw, 2.1rem);
  box-shadow: var(--shadow-panel);
}

.page-faq .faq-step__title {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 3.6vw, 1.9rem);
  font-weight: 700;
  line-height: 1.22;
  letter-spacing: -.005em;
  margin: 0 0 .9rem;
  color: var(--ink);
}

.page-faq .faq-step__card > p {
  margin: 0;
  font-size: .95rem;
  line-height: 1.85;
  color: rgba(5, 10, 15, .78);
  max-width: 68ch;
}

.page-faq .faq-step__card a {
  color: var(--command);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  font-weight: 600;
}

.page-faq .faq-step__card a:hover,
.page-faq .faq-step__card a:focus-visible {
  color: var(--signal);
}

/* ---------- 快速开始三栏 ---------- */

.page-faq .quick-grid {
  display: grid;
  gap: .85rem;
  margin: 1.6rem 0 0;
  padding: 0;
  list-style: none;
  counter-reset: quick;
}

@media (min-width: 700px) {
  .page-faq .quick-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-faq .quick-card {
  background: #fff;
  border: 1px solid rgba(5, 10, 15, .1);
  border-radius: var(--radius-md);
  padding: 1rem 1.1rem 1.15rem;
}

.page-faq .quick-card__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  margin-bottom: .7rem;
  border-radius: var(--radius-pill);
  background: var(--steel);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: .74rem;
  font-weight: 700;
}

.page-faq .quick-card h3 {
  margin: 0 0 .45rem;
  font-size: .96rem;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
}

.page-faq .quick-card p {
  margin: 0;
  font-size: .87rem;
  line-height: 1.75;
  color: rgba(5, 10, 15, .72);
}

/* ---------- 图片框 ---------- */

.page-faq .faq-figure {
  margin: 1.75rem 0 0;
}

/* ---------- 入口分组表 ---------- */

.page-faq .entry-grid {
  margin: 1.6rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(5, 10, 15, .12);
}

.page-faq .entry-row {
  display: grid;
  gap: .35rem .9rem;
  padding: .95rem 0;
  border-bottom: 1px solid rgba(5, 10, 15, .12);
}

@media (min-width: 720px) {
  .page-faq .entry-row {
    grid-template-columns: 7.5rem minmax(0, 1fr) minmax(0, 1.35fr);
    align-items: baseline;
  }
}

.page-faq .entry-row__group {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .95rem;
  font-weight: 700;
  color: var(--ink);
}

.page-faq .entry-row__group::before {
  content: "";
  flex: none;
  width: .5rem;
  height: .5rem;
  border-radius: 2px;
  background: var(--signal);
}

.page-faq .entry-row__items {
  font-family: var(--font-mono);
  font-size: .79rem;
  letter-spacing: .02em;
  color: rgba(5, 10, 15, .6);
}

.page-faq .entry-row__use {
  font-size: .88rem;
  line-height: 1.72;
  color: rgba(5, 10, 15, .78);
}

/* ---------- 筛选示意 ---------- */

.page-faq .filter-demo {
  margin-top: 1.6rem;
  padding: .35rem 1.1rem .5rem;
  border: 1px dashed rgba(5, 10, 15, .22);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, .62);
}

.page-faq .filter-demo__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem .8rem;
  padding-block: .65rem;
}

.page-faq .filter-demo__row + .filter-demo__row {
  border-top: 1px solid rgba(5, 10, 15, .1);
}

.page-faq .filter-demo__label {
  min-width: 4.6rem;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: rgba(5, 10, 15, .5);
}

.page-faq .filter-demo__chips {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
}

.page-faq .faq-step__card .tag--muted {
  color: rgba(5, 10, 15, .6);
  border-color: rgba(5, 10, 15, .2);
}

/* ---------- 要点列表 ---------- */

.page-faq .faq-points {
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .6rem;
}

.page-faq .faq-points li {
  position: relative;
  padding-left: 1.4rem;
  font-size: .91rem;
  line-height: 1.78;
  color: rgba(5, 10, 15, .78);
}

.page-faq .faq-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: .58rem;
  height: 2px;
  border-radius: 1px;
  background: var(--signal);
}

.page-faq .faq-points b {
  color: var(--ink);
  font-weight: 700;
}

/* ---------- 深色旁注 ---------- */

.page-faq .faq-aside {
  margin-top: 1.6rem;
  padding: 1rem 1.15rem 1.05rem;
  background: var(--steel);
  border-left: 3px solid var(--signal);
  border-radius: var(--radius-md);
}

.page-faq .faq-aside__label {
  display: block;
  margin-bottom: .45rem;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--signal);
}

.page-faq .faq-step__card .faq-aside p {
  margin: 0;
  font-size: .87rem;
  line-height: 1.78;
  color: var(--silver);
}

/* ---------- 常见问题 ---------- */

.page-faq .faq-index {
  display: grid;
  gap: .5rem;
  margin-top: 1.4rem;
}

.page-faq .faq-item {
  background: #fff;
  border: 1px solid rgba(5, 10, 15, .12);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.page-faq .faq-item summary {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: .7rem;
  padding: .9rem 2.6rem .9rem 1rem;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item summary::after {
  content: "+";
  position: absolute;
  right: 1rem;
  top: .78rem;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1;
  color: var(--signal);
  transition: transform .25s var(--ease);
}

.page-faq .faq-item[open] summary::after {
  transform: rotate(45deg);
}

.page-faq .faq-item__code {
  flex: none;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .1em;
  color: var(--signal);
}

.page-faq .faq-item__q {
  font-size: .93rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--ink);
}

.page-faq .faq-item__a {
  padding: .8rem 1rem 1rem;
  border-top: 1px solid rgba(5, 10, 15, .08);
}

.page-faq .faq-item__a p {
  margin: 0;
  font-size: .89rem;
  line-height: 1.8;
  color: rgba(5, 10, 15, .76);
}

.page-faq .faq-item__a a {
  color: var(--command);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 600;
}

/* ---------- 底部联系 ---------- */

.page-faq .faq-cta {
  display: grid;
  gap: 1.25rem;
  margin-top: clamp(2.5rem, 6vw, 4rem);
  padding: clamp(1.35rem, 3.5vw, 2rem);
  border: 1px solid var(--hair);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--command) 0%, var(--steel-deep) 100%);
}

@media (min-width: 760px) {
  .page-faq .faq-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 2rem;
  }
}

.page-faq .faq-cta__title {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 3vw, 1.6rem);
  font-weight: 700;
  line-height: 1.3;
  margin: 0 0 .6rem;
  color: var(--paper);
}

.page-faq .faq-cta__text p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.8;
  color: var(--silver);
  max-width: 58ch;
}

.page-faq .faq-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
}

@media (max-width: 420px) {
  .page-faq .faq-cta__actions .btn {
    width: 100%;
    justify-content: center;
  }
}

/* ---------- 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-faq .path-toc__link,
  .page-faq .faq-item summary::after {
    transition: none;
  }
}