.page-faq {
  --faq-edge: rgba(43, 61, 70, 0.72);
  --faq-glow: rgba(182, 255, 63, 0.14);
  --faq-warm-glow: rgba(255, 138, 43, 0.12);
  background: var(--bg);
  color: var(--white);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */

.page-faq .tut-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(1.5rem, 4vw, 2.5rem) clamp(2.25rem, 5.5vw, 4rem);
  background:
    radial-gradient(115% 85% at 84% 8%, var(--faq-glow), transparent 58%),
    radial-gradient(90% 70% at 8% 96%, var(--faq-warm-glow), transparent 62%),
    linear-gradient(168deg, var(--bg) 0%, var(--panel) 60%, var(--cool) 100%);
}

.page-faq .tut-hero__backdrop {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    repeating-linear-gradient(90deg, rgba(43, 61, 70, 0.35) 0 1px, transparent 1px 84px),
    repeating-linear-gradient(0deg, rgba(43, 61, 70, 0.22) 0 1px, transparent 1px 84px);
  mask-image: radial-gradient(88% 78% at 78% 18%, #000 0%, transparent 76%);
  -webkit-mask-image: radial-gradient(88% 78% at 78% 18%, #000 0%, transparent 76%);
}

.page-faq .tut-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line) 18%, var(--lime) 54%, var(--line) 82%, transparent);
  opacity: 0.6;
}

.page-faq .tut-hero__inner {
  position: relative;
  z-index: 1;
}

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

.page-faq .tut-hero__grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-faq .tut-hero__copy .eyebrow {
  display: inline-block;
}

.page-faq .tut-hero h1 {
  margin: 0.55rem 0 0;
  font-size: clamp(2.05rem, 5.6vw, 3.75rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-faq .tut-hero .lede {
  margin: 1rem 0 0;
  max-width: 54ch;
  font-size: clamp(0.98rem, 1.6vw, 1.08rem);
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .tut-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: clamp(1.25rem, 3vw, 1.75rem);
}

/* 右侧玻璃信息面板 */

.page-faq .tut-hero__panel {
  position: relative;
  padding: clamp(1.15rem, 3vw, 1.6rem);
  border-radius: var(--radius);
  border: 1px solid var(--faq-edge);
  background: linear-gradient(152deg, rgba(23, 36, 44, 0.72), rgba(6, 18, 14, 0.86));
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 28px 64px -34px rgba(0, 0, 0, 0.92);
}

.page-faq .tut-hero__panel::before {
  content: "";
  position: absolute;
  top: -1px;
  bottom: -1px;
  left: -1px;
  width: 3px;
  border-radius: var(--radius) 0 0 var(--radius);
  background: linear-gradient(180deg, var(--lime), var(--lime-dim) 44%, transparent);
}

.page-faq .tut-hero__panel-title {
  margin: 0 0 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-faq .vitals {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.7rem;
}

.page-faq .vitals__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px dashed rgba(43, 61, 70, 0.85);
}

.page-faq .vitals__row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-faq .vitals__k {
  font-size: 0.84rem;
  color: var(--muted);
  white-space: nowrap;
}

.page-faq .vitals__v {
  font-family: var(--font-mono);
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--num);
  letter-spacing: -0.01em;
  text-align: right;
}

.page-faq .vitals__v--lime {
  color: var(--lime);
}

.page-faq .vitals__v--warm {
  color: var(--orange);
}

/* ---------- 左右画布 ---------- */

.page-faq .tut-canvas {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.25rem);
  padding-block: clamp(1.75rem, 4vw, 3rem) clamp(3rem, 7vw, 5.5rem);
}

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

.page-faq .tut-rail__label {
  margin: 0 0 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-faq .tut-rail__list {
  display: flex;
  gap: 0.4rem;
  margin: 0;
  padding: 0 0 0.6rem;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
  -webkit-overflow-scrolling: touch;
}

.page-faq .tut-rail__list > li {
  flex: 0 0 auto;
}

.page-faq .tut-rail__list::-webkit-scrollbar {
  height: 4px;
}

.page-faq .tut-rail__list::-webkit-scrollbar-thumb {
  background: var(--line);
  border-radius: 999px;
}

.page-faq .tut-rail__link {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.5rem 0.7rem;
  border-radius: var(--radius-sm);
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.24s var(--ease), background-color 0.24s var(--ease);
}

.page-faq .tut-rail__link::before {
  content: "";
  width: 3px;
  height: 15px;
  border-radius: 999px;
  background: var(--line);
  transition: background-color 0.24s var(--ease), height 0.24s var(--ease);
}

.page-faq .tut-rail__link:hover,
.page-faq .tut-rail__link:focus-visible {
  color: var(--white);
  background: rgba(23, 36, 44, 0.72);
  outline: none;
}

.page-faq .tut-rail__link:hover::before,
.page-faq .tut-rail__link:focus-visible::before {
  background: var(--lime);
  height: 22px;
}

.page-faq .tut-rail__idx {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: var(--lime);
}

.page-faq .tut-stream {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: clamp(1.75rem, 4.5vw, 3rem);
}

/* ---------- 堆叠画板 ---------- */

.page-faq .tut-block {
  position: relative;
  padding: clamp(1.35rem, 3.4vw, 2.4rem) clamp(1.1rem, 3vw, 2.1rem);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(13, 32, 25, 0.88) 0%, rgba(23, 36, 44, 0.42) 100%);
  scroll-margin-top: 5.5rem;
}

.page-faq .tut-block::before {
  content: "";
  position: absolute;
  top: 0;
  left: clamp(1.1rem, 3vw, 2.1rem);
  width: 68px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--lime), transparent);
}

.page-faq .tut-block--help {
  background: linear-gradient(160deg, rgba(23, 36, 44, 0.72) 0%, rgba(6, 18, 14, 0.9) 100%);
}

.page-faq .tut-block--help::before {
  background: linear-gradient(90deg, var(--orange), transparent);
}

.page-faq .tut-block__head {
  max-width: 60ch;
  margin-bottom: clamp(1.1rem, 2.8vw, 1.6rem);
}

.page-faq .tut-block__head .eyebrow {
  display: inline-block;
  margin-bottom: 0.45rem;
}

.page-faq .tut-block__head .section-title {
  margin: 0 0 0.6rem;
  font-size: clamp(1.45rem, 3.2vw, 2.2rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-faq .tut-block__head .lede {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.78;
  color: var(--muted);
}

.page-faq .tut-figure {
  margin: 0 0 clamp(1.25rem, 3vw, 1.9rem);
}

.page-faq .media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 步骤清单 ---------- */

.page-faq .steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
}

.page-faq .step {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 0 1rem;
  padding-bottom: 1.35rem;
}

.page-faq .step:last-child {
  padding-bottom: 0;
}

.page-faq .step::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 50px;
  bottom: 4px;
  width: 1px;
  background: linear-gradient(180deg, var(--line), transparent);
}

.page-faq .step:last-child::before {
  display: none;
}

.page-faq .step__num {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 13px;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--lime);
  background: rgba(182, 255, 63, 0.08);
  border: 1px solid rgba(182, 255, 63, 0.3);
}

.page-faq .step__body {
  min-width: 0;
  padding-top: 0.1rem;
}

.page-faq .step__title {
  margin: 0.5rem 0 0.3rem;
  font-size: 1.03rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .step__title:first-child {
  margin-top: 0.55rem;
}

.page-faq .step__text {
  margin: 0.5rem 0 0;
  font-size: 0.94rem;
  line-height: 1.72;
  color: var(--muted);
}

.page-faq .steps--tight .step {
  padding-bottom: 1rem;
}

.page-faq .steps--tight .step__text {
  margin-top: 0.45rem;
}

/* ---------- 问答条目 ---------- */

.page-faq .qa {
  position: relative;
  padding: 1rem 1.05rem 1rem 1.25rem;
  border-radius: var(--radius-sm);
  background: rgba(23, 36, 44, 0.44);
  border-left: 2px solid rgba(182, 255, 63, 0.34);
}

.page-faq .qa + .qa {
  margin-top: 0.8rem;
}

.page-faq .qa__q {
  margin: 0 0 0.4rem;
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-faq .qa__verdict {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-faq .qa__more {
  margin-top: 0.65rem;
}

.page-faq .qa__toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.2rem 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--lime-dim);
  transition: color 0.24s var(--ease);
}

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

.page-faq .qa__toggle:hover {
  color: var(--lime);
}

.page-faq .qa__toggle::after {
  content: "";
  width: 7px;
  height: 7px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translate(-1px, -1px);
  transition: transform 0.3s var(--ease);
}

.page-faq .qa__more[open] .qa__toggle::after {
  transform: rotate(-135deg) translate(-2px, -2px);
}

.page-faq .qa__detail {
  margin-top: 0.6rem;
  padding-top: 0.7rem;
  border-top: 1px dashed rgba(43, 61, 70, 0.9);
  animation: faq-reveal 0.32s var(--ease);
}

@keyframes faq-reveal {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-faq .qa-grid {
  display: grid;
  gap: 0.8rem;
}

.page-faq .qa-grid--tight {
  margin-top: clamp(1.1rem, 2.8vw, 1.6rem);
}

.page-faq .qa-grid .qa + .qa {
  margin-top: 0;
}

.page-faq .tut-note {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.74;
  color: var(--muted);
}

.page-faq .tut-note--lead {
  margin-top: clamp(1rem, 2.6vw, 1.4rem);
  padding-left: 0.85rem;
  border-left: 2px solid rgba(255, 138, 43, 0.55);
}

.page-faq .tut-note + .tut-note {
  margin-top: 0.7rem;
}

.page-faq .qa__detail a,
.page-faq .tut-note a {
  color: var(--lime);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .qa__detail a:hover,
.page-faq .tut-note a:hover {
  color: var(--orange-soft);
}

/* ---------- 收藏两栏 ---------- */

.page-faq .tut-split {
  display: grid;
  gap: clamp(1.15rem, 3vw, 1.75rem);
}

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

.page-faq .tut-split__media {
  margin: 0;
  width: 100%;
  max-width: 340px;
  justify-self: center;
}

/* ---------- 版本行 ---------- */

.page-faq .verline {
  margin: 0 0 clamp(1.1rem, 2.8vw, 1.6rem);
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--faq-edge);
  background: rgba(6, 18, 14, 0.6);
  font-size: 0.95rem;
  line-height: 1.9;
  color: var(--muted);
}

.page-faq .verline__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.08em;
  color: var(--lime);
  padding: 0 0.15em;
  user-select: all;
  -webkit-user-select: all;
  background: linear-gradient(180deg, transparent 62%, rgba(182, 255, 63, 0.22) 62%);
}

/* ---------- 排查顺序 ---------- */

.page-faq .trouble {
  margin-top: clamp(1.2rem, 3vw, 1.8rem);
  padding: clamp(1rem, 2.6vw, 1.4rem);
  border-radius: var(--radius-sm);
  background: linear-gradient(150deg, rgba(255, 138, 43, 0.09), rgba(6, 18, 14, 0.62) 62%);
  border: 1px solid rgba(255, 138, 43, 0.26);
}

.page-faq .trouble__title {
  margin: 0 0 1rem;
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--orange-soft);
}

.page-faq .trouble .step__num {
  color: var(--orange);
  background: rgba(255, 138, 43, 0.1);
  border-color: rgba(255, 138, 43, 0.34);
}

.page-faq .trouble .step::before {
  background: linear-gradient(180deg, rgba(255, 138, 43, 0.4), transparent);
}

.page-faq .trouble__tail {
  margin: 0.9rem 0 0;
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 帮助区 ---------- */

.page-faq .help-grid {
  display: grid;
  gap: 0.8rem;
}

.page-faq .help-card {
  padding: 1rem 1.1rem;
  border-radius: var(--radius-sm);
  background: rgba(6, 18, 14, 0.62);
  border: 1px solid var(--faq-edge);
}

.page-faq .help-card__label {
  margin: 0 0 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-faq .help-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(0.98rem, 2.4vw, 1.14rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--lime);
  word-break: break-all;
}

.page-faq .help-card__value--warm {
  color: var(--orange-soft);
  word-break: normal;
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-faq .qa-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.9rem;
  }

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

  .page-faq .help-grid .help-card:last-child {
    grid-column: 1 / -1;
  }

  .page-faq .help-grid .help-card:last-child .help-card__value {
    font-size: 1.2rem;
  }
}

@media (min-width: 760px) {
  .page-faq .tut-split {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.62fr);
    align-items: start;
  }

  .page-faq .tut-split__media {
    max-width: none;
    justify-self: stretch;
  }
}

@media (min-width: 900px) {
  .page-faq .tut-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
    gap: clamp(2rem, 5vw, 4.5rem);
  }

  .page-faq .tut-canvas {
    grid-template-columns: 232px minmax(0, 1fr);
    align-items: start;
    gap: clamp(1.75rem, 4vw, 3.25rem);
  }

  .page-faq .tut-rail {
    position: sticky;
    top: 5.5rem;
  }

  .page-faq .tut-rail__list {
    flex-direction: column;
    gap: 0.2rem;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .tut-rail__link {
    padding: 0.6rem 0.7rem;
    font-size: 0.94rem;
  }

  .page-faq .tut-block {
    padding: clamp(1.75rem, 3vw, 2.6rem) clamp(1.5rem, 2.6vw, 2.4rem);
  }

  .page-faq .tut-block::before {
    left: clamp(1.5rem, 2.6vw, 2.4rem);
    width: 88px;
  }
}

@media (min-width: 1100px) {
  .page-faq .qa-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-faq .help-grid .help-card:last-child {
    grid-column: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}