.page-faq {
  background: var(--night);
  color: var(--warm);
}

/* ---------- 首屏 ---------- */
.page-faq .tut-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.2rem, 4vw, 2rem) 0 clamp(1.8rem, 5vw, 3rem);
  background:
    radial-gradient(115% 100% at 92% -20%, rgba(47, 224, 200, 0.18), transparent 62%),
    linear-gradient(180deg, var(--night) 0%, var(--stand) 100%);
  border-bottom: 1px solid var(--line-strong);
}

.page-faq .tut-hero::after {
  content: "";
  position: absolute;
  top: -20%;
  right: -10%;
  width: 44%;
  height: 150%;
  background: repeating-linear-gradient(112deg, rgba(255, 107, 26, 0.2) 0 2px, transparent 2px 15px);
  transform: skewX(-10deg);
  pointer-events: none;
}

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

.page-faq .tut-hero .eyebrow {
  margin-top: 1.1rem;
}

.page-faq .tut-hero h1 {
  margin: 0.55rem 0 0.9rem;
  max-width: 17ch;
  font-size: clamp(2rem, 7.2vw, 3.6rem);
  line-height: 1.06;
  letter-spacing: -0.025em;
  font-weight: 900;
}

.page-faq .tut-hero__lead {
  margin: 0;
  max-width: 58ch;
  font-size: clamp(0.95rem, 2.4vw, 1.05rem);
  line-height: 1.8;
  color: rgba(255, 247, 234, 0.86);
}

.page-faq .tut-index {
  list-style: none;
  margin: clamp(1.2rem, 3.4vw, 1.9rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
}

.page-faq .tut-index a {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  padding: 0.7rem 0.85rem;
  background: rgba(14, 42, 68, 0.62);
  border: 1px solid var(--line-strong);
  color: var(--warm);
  text-decoration: none;
  font-size: 0.88rem;
  line-height: 1.35;
  clip-path: polygon(0 0, calc(100% - 11px) 0, 100% 11px, 100% 100%, 0 100%);
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .tut-index a:hover,
.page-faq .tut-index a:focus-visible {
  background: rgba(47, 224, 200, 0.12);
  border-color: var(--mint);
  color: var(--mint);
  outline: none;
}

.page-faq .tut-index__num {
  font-family: var(--mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--orange);
}

/* ---------- 布局与目录 ---------- */
.page-faq .tut-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.2rem, 3vw, 2rem);
  padding: clamp(1.4rem, 4vw, 2.6rem) 0 clamp(2.4rem, 6vw, 4rem);
}

.page-faq .tut-toc {
  border: 1px solid var(--line);
  background: rgba(14, 42, 68, 0.55);
  padding: 0.75rem 0.85rem;
}

.page-faq .tut-toc__title {
  margin: 0 0 0.55rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--haze);
}

.page-faq .tut-toc__list {
  list-style: none;
  margin: 0;
  padding: 0 0 0.15rem;
  display: flex;
  gap: 0.4rem;
  overflow-x: auto;
}

.page-faq .tut-toc__list a {
  display: flex;
  align-items: baseline;
  gap: 0.45rem;
  padding: 0.45rem 0.55rem;
  border-left: 2px solid transparent;
  color: var(--warm);
  text-decoration: none;
  font-size: 0.85rem;
  white-space: nowrap;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-faq .tut-toc__list a:hover,
.page-faq .tut-toc__list a:focus-visible {
  color: var(--mint);
  border-left-color: var(--orange);
  background: rgba(255, 107, 26, 0.08);
  outline: none;
}

.page-faq .tut-toc__idx {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--orange);
}

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

/* ---------- 章节通用 ---------- */
.page-faq .tut-sec {
  margin-bottom: clamp(2.2rem, 6vw, 3.6rem);
  scroll-margin-top: 96px;
}

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

.page-faq .tut-sec__head {
  border-top: 2px solid var(--orange);
  padding-top: 0.7rem;
  margin-bottom: 1.1rem;
}

.page-faq .tut-sec__head .eyebrow {
  margin-bottom: 0.35rem;
}

.page-faq .tut-sec__head h2 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.35rem, 4.4vw, 1.95rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  font-weight: 900;
}

.page-faq .tut-sec__lead {
  margin: 0;
  max-width: 60ch;
  font-size: 0.94rem;
  line-height: 1.8;
  color: var(--haze);
}

/* ---------- 四步上手 ---------- */
.page-faq .tut-slab {
  background: var(--paper);
  color: var(--ink);
  padding: clamp(1rem, 3.2vw, 1.7rem);
}

.page-faq .tut-grid-step {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.1rem;
}

.page-faq .tut-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-faq .tut-steps li {
  position: relative;
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: 0.75rem;
  padding: 0.85rem 0.9rem;
  background: var(--paper-2);
}

.page-faq .tut-steps li::before {
  content: "";
  position: absolute;
  top: -0.55rem;
  left: 2.05rem;
  width: 1px;
  height: 0.55rem;
  background: rgba(18, 24, 32, 0.28);
}

.page-faq .tut-steps li:first-child::before {
  display: none;
}

.page-faq .tut-step__num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.4rem;
  height: 2.4rem;
  background: var(--ink);
  color: var(--warm);
  border-bottom: 2px solid var(--orange);
  font-family: var(--mono);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1;
}

.page-faq .tut-step__title {
  margin: 0 0 0.2rem;
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

.page-faq .tut-step__text {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.7;
  color: rgba(18, 24, 32, 0.78);
}

.page-faq .tut-step__text a {
  color: var(--mint-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .tut-shot {
  margin: 0;
}

.page-faq .tut-shot .media__img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-faq .tut-shot figcaption {
  margin-top: 0.5rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: rgba(18, 24, 32, 0.62);
}

.page-faq .tut-shot--dark figcaption {
  color: var(--haze);
}

/* ---------- 名次段 ---------- */
.page-faq .tut-rank {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.2rem;
  padding: clamp(1rem, 3.2vw, 1.7rem);
  background: linear-gradient(160deg, var(--stand) 0%, var(--night) 100%);
  border: 1px solid var(--line-strong);
}

.page-faq .tut-rank__steps {
  display: grid;
  gap: 0.75rem;
  align-content: start;
}

.page-faq .tut-rank__row {
  display: grid;
  grid-template-columns: 1.9rem minmax(0, 1fr);
  gap: 0.7rem;
  padding-left: 0.7rem;
  border-left: 2px solid var(--mint);
}

.page-faq .tut-rank__num {
  font-family: var(--mono);
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--mint);
}

.page-faq .tut-rank__row h3 {
  margin: 0 0 0.2rem;
  font-size: 0.98rem;
  line-height: 1.5;
  font-weight: 700;
  color: var(--warm);
}

.page-faq .tut-rank__row p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: rgba(255, 247, 234, 0.78);
}

.page-faq .tut-rank__row p a {
  color: var(--mint);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .tut-rank__side {
  display: grid;
  gap: 0.7rem;
  align-content: start;
}

.page-faq .tut-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.4rem;
  border-top: 1px solid var(--line-strong);
  padding-top: 0.7rem;
}

.page-faq .tut-facts li {
  display: grid;
  gap: 0.15rem;
}

.page-faq .tut-facts__num {
  font-family: var(--mono);
  font-size: clamp(1.15rem, 4.4vw, 1.5rem);
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
}

.page-faq .tut-facts__unit {
  font-size: 0.7em;
  margin-left: 0.1em;
}

.page-faq .tut-facts__k {
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--haze);
}

/* ---------- 历史交锋 ---------- */
.page-faq .tut-rules {
  display: grid;
  gap: 0.5rem;
}

.page-faq .tut-rule {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr);
  gap: 0.8rem;
  padding: 0.9rem 1rem;
  background: var(--paper);
  color: var(--ink);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
}

.page-faq .tut-rule__idx {
  font-family: var(--mono);
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--orange);
}

.page-faq .tut-rule h3 {
  margin: 0 0 0.2rem;
  font-size: 0.98rem;
  line-height: 1.5;
  font-weight: 700;
}

.page-faq .tut-rule p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: rgba(18, 24, 32, 0.78);
}

.page-faq .tut-rule p a {
  color: var(--mint-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 复盘三类标记 ---------- */
.page-faq .tut-review {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-faq .tut-review__item {
  padding: 0.9rem 1rem;
  background: rgba(14, 42, 68, 0.62);
  border-left: 4px solid var(--line-strong);
}

.page-faq .tut-review__item--feel {
  border-left-color: var(--orange);
}

.page-faq .tut-review__item--key {
  border-left-color: var(--mint);
}

.page-faq .tut-review__item--mood {
  border-left-color: var(--warm);
}

.page-faq .tut-review__item h3 {
  margin: 0 0 0.3rem;
  font-size: 0.98rem;
  line-height: 1.5;
  font-weight: 700;
  color: var(--warm);
}

.page-faq .tut-review__item p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: rgba(255, 247, 234, 0.78);
}

/* ---------- 常见问题 ---------- */
.page-faq .faq-bar {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.9rem;
}

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

.page-faq .faq-chip {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0.35rem 0.85rem;
  background: rgba(14, 42, 68, 0.62);
  border: 1px solid var(--line-strong);
  border-left: 3px solid rgba(124, 155, 179, 0.5);
  color: var(--warm);
  font-size: 0.82rem;
  line-height: 1.2;
  cursor: pointer;
  transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-faq .faq-chip:hover {
  border-color: var(--mint);
  color: var(--mint);
}

.page-faq .faq-radio:checked + .faq-chip {
  background: var(--orange);
  border-color: var(--orange);
  color: #10161F;
  font-weight: 700;
}

.page-faq .faq-radio:focus-visible + .faq-chip {
  border-color: var(--mint);
  color: var(--mint);
  font-weight: 700;
}

.page-faq #faqcat-read:checked ~ .faq-list .faq-item:not([data-cat="read"]),
.page-faq #faqcat-account:checked ~ .faq-list .faq-item:not([data-cat="account"]),
.page-faq #faqcat-rank:checked ~ .faq-list .faq-item:not([data-cat="rank"]),
.page-faq #faqcat-fix:checked ~ .faq-list .faq-item:not([data-cat="fix"]) {
  display: none;
}

.page-faq .faq-list {
  display: grid;
  gap: 0.55rem;
  align-items: start;
}

.page-faq .faq-item {
  background: var(--paper);
  color: var(--ink);
  border-left: 3px solid rgba(18, 24, 32, 0.18);
}

.page-faq .faq-item[open] {
  border-left-color: var(--orange);
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.8rem 0.95rem;
  font-size: 0.92rem;
  font-weight: 700;
  line-height: 1.55;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .faq-item summary::before {
  content: "+";
  flex: none;
  font-family: var(--mono);
  font-size: 1rem;
  line-height: 1.45;
  color: var(--mint-deep);
}

.page-faq .faq-item[open] summary::before {
  content: "–";
  color: var(--orange);
}

.page-faq .faq-item__body {
  padding: 0 0.95rem 0.9rem 2.45rem;
  font-size: 0.87rem;
  line-height: 1.75;
  color: rgba(18, 24, 32, 0.8);
}

.page-faq .faq-item__body p {
  margin: 0;
}

.page-faq .faq-item__body a {
  color: var(--mint-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 人工协助 ---------- */
.page-faq .tut-help {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.1rem;
  padding: clamp(1.1rem, 3.4vw, 1.9rem);
  background: linear-gradient(135deg, var(--stand) 0%, var(--night) 100%);
  border: 1px solid var(--line-strong);
}

.page-faq .tut-help::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 150px;
  height: 100%;
  background: linear-gradient(135deg, rgba(255, 107, 26, 0.85), rgba(255, 107, 26, 0));
  clip-path: polygon(0 0, 100% 0, 0 100%);
  opacity: 0.32;
  pointer-events: none;
}

.page-faq .tut-help__main,
.page-faq .tut-help__act {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.page-faq .tut-help__kicker {
  margin: 0 0 0.6rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-faq .tut-help__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-faq .tut-help__k {
  display: block;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  color: var(--haze);
  margin-bottom: 0.1rem;
}

.page-faq .tut-help__v {
  display: block;
  font-size: 0.94rem;
  line-height: 1.6;
  color: var(--warm);
  word-break: break-word;
}

.page-faq .tut-help__act p {
  margin: 0 0 0.8rem;
  font-size: 0.88rem;
  line-height: 1.75;
  color: rgba(255, 247, 234, 0.8);
}

/* ---------- 桌面 ---------- */
@media (min-width: 820px) {
  .page-faq .tut-index {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-faq .tut-grid-step {
    grid-template-columns: minmax(0, 1fr) 250px;
    gap: 1.6rem;
    align-items: start;
  }

  .page-faq .tut-rank {
    grid-template-columns: minmax(0, 1fr) 290px;
    gap: 1.8rem;
  }

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

  .page-faq .tut-help {
    grid-template-columns: minmax(0, 1fr) minmax(0, 300px);
    align-items: center;
    gap: 1.8rem;
  }

  .page-faq .tut-help__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.7rem 1.4rem;
  }
}

@media (min-width: 980px) {
  .page-faq .tut-layout {
    grid-template-columns: 226px minmax(0, 1fr);
    gap: clamp(1.6rem, 3vw, 2.8rem);
    align-items: start;
  }

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

  .page-faq .tut-toc__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
  }

  .page-faq .tut-grid-step {
    grid-template-columns: minmax(0, 1fr) 280px;
  }
}

@media (min-width: 1180px) {
  .page-faq .tut-hero h1 {
    max-width: 20ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .tut-index a,
  .page-faq .tut-toc__list a,
  .page-faq .faq-chip {
    transition: none;
  }
}
<<<END>>>