.page-faq {
  --faq-soft: rgba(34, 224, 214, 0.14);
  --faq-dim: rgba(18, 28, 70, 0.62);
  display: block;
}

/* 面包屑留白 */
.page-faq .tut-crumbs {
  padding-top: 22px;
  padding-bottom: 4px;
}

/* ---------- 首屏 ---------- */
.page-faq .tut-hero {
  border-bottom: 2px solid var(--edge);
  padding: clamp(28px, 5vw, 56px) 0 clamp(34px, 5vw, 64px);
  background:
    radial-gradient(130% 100% at 86% -12%, rgba(34, 224, 214, 0.18), rgba(34, 224, 214, 0) 62%),
    linear-gradient(180deg, var(--panel-2) 0%, var(--ink) 100%);
}

.page-faq .tut-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-faq .tut-hero-copy h1 {
  margin: 14px 0 0;
  max-width: 14em;
  font-size: clamp(32px, 5.2vw, 58px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 800;
  color: var(--cream);
}

.page-faq .tut-lead {
  margin: 20px 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.85;
  color: var(--stone);
}

.page-faq .tut-hero-cta {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-faq .tut-board {
  padding: 18px;
  border: 2px solid var(--edge);
  background: linear-gradient(180deg, var(--panel) 0%, var(--panel-2) 100%);
  box-shadow: var(--shadow-hard);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.page-faq .tut-board-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

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

.page-faq .tut-board-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .tut-board-list li {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 12px;
  border: 1px solid var(--edge);
  background: rgba(10, 17, 48, 0.55);
}

.page-faq .tut-board-num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--orange);
}

.page-faq .tut-board-text {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--stone);
}

.page-faq .tut-board-text strong {
  display: block;
  margin-bottom: 4px;
  font-size: 15.5px;
  color: var(--cream);
}

.page-faq .tut-board-foot {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--stone);
}

.page-faq .tut-board-foot a {
  color: var(--cyan);
}

/* ---------- 主栅格 ---------- */
.page-faq .tut-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  padding: clamp(32px, 5vw, 56px) 0 clamp(48px, 7vw, 88px);
}

/* ---------- 左侧索引轨道 ---------- */
.page-faq .tut-rail {
  padding: 14px;
  border: 2px solid var(--edge);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
}

.page-faq .tut-rail-title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--stone);
}

.page-faq .tut-rail-list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
}

.page-faq .tut-rail-list a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-left: 3px solid transparent;
  font-size: 14px;
  white-space: nowrap;
  color: var(--stone);
  text-decoration: none;
  transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.page-faq .tut-rail-list a:hover,
.page-faq .tut-rail-list a:focus-visible {
  color: var(--cream);
  border-left-color: var(--cyan);
  background: var(--cyan-08);
}

.page-faq .tut-rail-list .nav-index {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
}

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

.page-faq .tut-section {
  padding: clamp(28px, 4vw, 48px) 0;
  border-top: 2px solid var(--edge);
  scroll-margin-top: 96px;
}

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

.page-faq .tut-section:target {
  background: linear-gradient(90deg, var(--faq-soft), rgba(34, 224, 214, 0) 72%);
}

.page-faq .tut-section .section-head {
  margin-bottom: clamp(20px, 3vw, 30px);
}

/* ---------- 图片框 ---------- */
.page-faq .tut-media {
  margin: 0 0 clamp(20px, 3vw, 30px);
  border: 2px solid var(--edge);
  background: var(--panel-2);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

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

.page-faq .tut-caption {
  margin: 0;
  padding: 12px 14px;
  border-top: 1px solid var(--edge);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--stone);
}

/* ---------- 三步卡 ---------- */
.page-faq .step-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .step-card {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 16px;
  padding: 18px;
  border: 2px solid var(--edge);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.page-faq .step-num {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  padding-top: 2px;
  color: var(--orange);
}

.page-faq .step-title {
  margin: 0 0 8px;
  font-size: 19px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--cream);
}

.page-faq .step-text {
  margin: 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--stone);
}

.page-faq .step-state {
  margin: 12px 0 0;
  padding: 8px 12px;
  border-left: 3px solid var(--moss);
  background: rgba(78, 138, 99, 0.12);
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--cream);
}

/* ---------- 平板：横竖屏对照 ---------- */
.page-faq .tut-pair {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-faq .tut-pair-card {
  padding: 18px;
  border: 2px solid var(--edge);
  background: var(--panel-2);
  box-shadow: var(--shadow-hard);
}

.page-faq .tut-pair-card h3 {
  margin: 12px 0 8px;
  font-size: 17.5px;
  line-height: 1.45;
  color: var(--cream);
}

.page-faq .tut-pair-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
}

.page-faq .tut-notes {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .tut-notes li {
  position: relative;
  padding: 10px 14px 10px 32px;
  border: 1px solid var(--edge);
  background: var(--faq-dim);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--stone);
}

.page-faq .tut-notes li::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 19px;
  width: 8px;
  height: 8px;
  background: var(--cyan);
  transform: rotate(45deg);
}

/* ---------- 电脑端三栏 ---------- */
.page-faq .desk-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-faq .desk-card {
  display: flex;
  flex-direction: column;
  padding: 18px;
  border: 2px solid var(--edge);
  background: linear-gradient(180deg, var(--panel) 0%, var(--panel-2) 100%);
  box-shadow: var(--shadow-hard);
}

.page-faq .desk-card h3 {
  margin: 0 0 10px;
  font-size: 17px;
  line-height: 1.45;
  color: var(--cream);
}

.page-faq .desk-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--stone);
}

.page-faq .desk-card a {
  color: var(--cyan);
}

/* ---------- 对照查询 ---------- */
.page-faq .cross-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 28px);
}

.page-faq .cross-split .tut-media {
  margin: 0;
}

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

.page-faq .cross-steps li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--edge);
  font-size: 15px;
  line-height: 1.8;
  color: var(--stone);
}

.page-faq .cross-steps li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .cross-num {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
}

/* ---------- 自检清单 ---------- */
.page-faq .check-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .check-item {
  border: 2px solid var(--edge);
  background: var(--panel-2);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.page-faq .check-label {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 14px 16px;
  cursor: pointer;
}

.page-faq .check-box {
  appearance: none;
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  margin: 2px 0 0;
  display: grid;
  place-items: center;
  border: 2px solid var(--edge);
  background: var(--ink);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.page-faq .check-box::after {
  content: "";
  width: 10px;
  height: 10px;
  background: transparent;
  transition: background 0.15s ease;
}

.page-faq .check-box:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-faq .check-box:checked {
  border-color: var(--cyan);
}

.page-faq .check-box:checked::after {
  background: var(--cyan);
}

.page-faq .check-text {
  font-size: 15px;
  line-height: 1.8;
  color: var(--cream);
}

.page-faq .check-num {
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--orange);
}

.page-faq .check-text a {
  color: var(--cyan);
}

.page-faq .check-box:checked ~ .check-text {
  color: var(--stone);
}

.page-faq .check-item:has(.check-box:checked) {
  border-color: var(--moss);
  background: rgba(78, 138, 99, 0.1);
}

/* ---------- 术语表 ---------- */
.page-faq .glossary {
  position: relative;
}

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

.page-faq .gl-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.page-faq .gl-tab {
  padding: 7px 13px;
  border: 2px solid var(--edge);
  background: var(--panel);
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--stone);
  cursor: pointer;
  user-select: none;
  transition: color 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.page-faq .gl-tab:hover {
  border-color: var(--cyan);
  color: var(--cream);
}

.page-faq #gl-all:checked ~ .gl-tabs label[for="gl-all"],
.page-faq #gl-code:checked ~ .gl-tabs label[for="gl-code"],
.page-faq #gl-device:checked ~ .gl-tabs label[for="gl-device"],
.page-faq #gl-version:checked ~ .gl-tabs label[for="gl-version"] {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink);
  font-weight: 700;
}

.page-faq #gl-code:checked ~ .gl-table-wrap .gl-table tbody tr:not(.cat-code),
.page-faq #gl-device:checked ~ .gl-table-wrap .gl-table tbody tr:not(.cat-device),
.page-faq #gl-version:checked ~ .gl-table-wrap .gl-table tbody tr:not(.cat-version) {
  display: none;
}

.page-faq .gl-table-wrap {
  border: 2px solid var(--edge);
  background: var(--panel);
  box-shadow: var(--shadow-hard);
  overflow-x: auto;
}

.page-faq .gl-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
}

.page-faq .gl-caption {
  padding: 12px 16px 0;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--stone);
}

.page-faq .gl-table th {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 2px solid var(--edge);
  background: var(--panel-2);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--stone);
}

.page-faq .gl-table td {
  padding: 13px 16px;
  vertical-align: top;
  border-bottom: 1px solid var(--edge);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--stone);
}

.page-faq .gl-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-faq .gl-table .field-name {
  font-family: var(--font-mono);
  white-space: nowrap;
  color: var(--cyan);
}

.page-faq .gl-table .field-abbr {
  font-family: var(--font-mono);
  font-size: 13px;
  white-space: nowrap;
  color: var(--orange);
}

/* ---------- 快捷键折叠 ---------- */
.page-faq .sc-item {
  margin-bottom: 12px;
  border: 2px solid var(--edge);
  background: var(--panel-2);
}

.page-faq .sc-item[open] {
  background: var(--panel);
}

.page-faq .sc-item > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  list-style: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 700;
  color: var(--cream);
}

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

.page-faq .sc-toggle {
  position: relative;
  flex: none;
  width: 14px;
  height: 14px;
}

.page-faq .sc-toggle::before,
.page-faq .sc-toggle::after {
  content: "";
  position: absolute;
  background: var(--cyan);
}

.page-faq .sc-toggle::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 2px;
}

.page-faq .sc-toggle::after {
  left: 6px;
  top: 0;
  width: 2px;
  height: 14px;
  transition: opacity 0.15s ease;
}

.page-faq .sc-item[open] .sc-toggle::after {
  opacity: 0;
}

.page-faq .sc-list {
  list-style: none;
  margin: 0;
  padding: 0 16px 16px;
  display: grid;
  gap: 10px;
}

.page-faq .sc-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 10px;
  border-top: 1px dashed var(--edge);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--stone);
}

.page-faq .kbd {
  display: inline-block;
  padding: 3px 8px;
  border: 2px solid var(--edge);
  border-bottom-width: 3px;
  background: var(--ink);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.4;
  color: var(--cyan);
}

.page-faq .sc-note {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--stone);
}

.page-faq .sc-note a {
  color: var(--cyan);
}

/* ---------- 微交互 ---------- */
@media (hover: hover) {
  .page-faq .tut-board:hover,
  .page-faq .step-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lift);
  }

  .page-faq .step-card:hover {
    border-color: var(--cyan-40);
  }
}

/* ---------- 窄屏适配 ---------- */
@media (max-width: 420px) {
  .page-faq .step-card {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }

  .page-faq .step-num {
    font-size: 22px;
  }

  .page-faq .cross-steps li {
    grid-template-columns: 28px minmax(0, 1fr);
    gap: 10px;
  }
}

@media (max-width: 1019px) {
  .page-faq .tut-rail-list li {
    flex: 0 0 auto;
  }

  .page-faq .tut-rail-list a {
    border: 2px solid var(--edge);
    background: var(--panel-2);
  }

  .page-faq .tut-rail-list a:hover,
  .page-faq .tut-rail-list a:focus-visible {
    border-color: var(--cyan);
  }
}

/* ---------- 宽屏布局 ---------- */
@media (min-width: 720px) {
  .page-faq .tut-pair {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-faq .desk-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-faq .cross-split {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
    align-items: start;
  }
}

@media (min-width: 900px) {
  .page-faq .tut-hero-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  }
}

@media (min-width: 1020px) {
  .page-faq .tut-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .tut-rail {
    position: sticky;
    top: 104px;
  }

  .page-faq .tut-rail-list {
    display: block;
    padding-bottom: 0;
    overflow: visible;
  }
}