.page-faq {
  display: block;
  background: var(--ink);
  color: var(--paper);
  overflow-x: clip;
}

.page-faq [id] {
  scroll-margin-top: 96px;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding: var(--g5) 0 var(--g4);
  background-color: var(--ink);
  background-image:
    repeating-linear-gradient(0deg, rgba(245, 241, 232, .024) 0 1px, transparent 1px 4px),
    radial-gradient(880px 420px at 80% -12%, rgba(255, 106, 26, .24), transparent 70%),
    radial-gradient(680px 380px at 8% 6%, rgba(43, 227, 208, .13), transparent 74%);
}

.page-faq .faq-hero .crumbs {
  margin-bottom: var(--g4);
}

.page-faq .faq-hero__kicker {
  margin: 0 0 var(--g2);
  font-size: 13px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-faq .faq-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 7.2vw, 60px);
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--paper);
  max-width: 15ch;
  text-shadow: 0 0 42px rgba(255, 106, 26, .28);
}

.page-faq .faq-hero__lead {
  margin: var(--g3) 0 0;
  max-width: 60ch;
  font-size: 17px;
  line-height: 1.78;
  color: var(--body-soft);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--g2);
  margin-top: var(--g4);
}

.page-faq .faq-hero__media {
  margin: var(--g5) 0 0;
}

.page-faq .faq-hero__media img,
.page-faq .faq-stage__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: inherit;
}

/* ---------- 索引区 ---------- */
.page-faq .faq-index {
  position: relative;
}

.page-faq .faq-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--g2);
  margin-top: var(--g4);
}

.page-faq .faq-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 0 20px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  background: transparent;
  color: var(--body-soft);
  font-size: 15px;
  text-decoration: none;
  transition: border-color .2s var(--ease), color .2s var(--ease), transform .2s var(--ease);
}

.page-faq .faq-tag::before {
  content: "";
  width: 8px;
  height: 8px;
  flex: none;
  border-radius: 2px;
  background: currentColor;
  transform: rotate(45deg);
}

.page-faq .faq-tag--basic { color: var(--orange); border-color: rgba(255, 106, 26, .5); }
.page-faq .faq-tag--adv { color: var(--amber); border-color: rgba(255, 176, 32, .5); }
.page-faq .faq-tag--event { color: var(--cyan); border-color: rgba(43, 227, 208, .5); }

.page-faq .faq-tag:hover,
.page-faq .faq-tag:focus-visible {
  transform: translateY(-2px);
  border-color: currentColor;
  color: var(--paper);
  background: rgba(255, 255, 255, .04);
}

.page-faq .faq-wall {
  display: flex;
  gap: var(--g2);
  list-style: none;
  margin: var(--g4) 0 0;
  padding: 0 0 var(--g2);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--line) transparent;
}

.page-faq .faq-wall__item {
  flex: 0 0 78%;
  scroll-snap-align: start;
}

.page-faq .faq-wall__link {
  display: flex;
  flex-direction: column;
  gap: var(--g1);
  min-height: 44px;
  height: 100%;
  padding: var(--g3);
  border-radius: var(--r-md);
  background: var(--ink-2);
  border: 1px solid var(--line);
  color: var(--paper);
  text-decoration: none;
  transition: transform .2s var(--ease), border-color .2s var(--ease), background .2s var(--ease);
}

.page-faq .faq-wall__link:hover,
.page-faq .faq-wall__link:focus-visible {
  transform: translateY(-3px);
  background: var(--ink-3);
  border-color: var(--cyan);
}

.page-faq .faq-wall__idx {
  font-size: 13px;
  letter-spacing: .12em;
}

.page-faq .faq-wall__item--basic .faq-wall__idx { color: var(--orange); }
.page-faq .faq-wall__item--adv .faq-wall__idx { color: var(--amber); }
.page-faq .faq-wall__item--event .faq-wall__idx { color: var(--cyan); }

.page-faq .faq-wall__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.36;
}

.page-faq .faq-wall__meta {
  margin-top: auto;
  padding-top: var(--g2);
  font-size: 13px;
  color: var(--mist);
}

/* ---------- 更新节奏 ---------- */
.page-faq .faq-rhythm {
  position: relative;
  padding: var(--g5) 0;
  background: var(--ink-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-rhythm::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--orange), var(--amber) 46%, var(--cyan));
}

.page-faq .faq-rhythm__kicker {
  margin: 0 0 var(--g2);
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--amber);
}

.page-faq .faq-rhythm__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 4.4vw, 38px);
  line-height: 1.16;
  letter-spacing: -.015em;
  color: var(--paper);
}

.page-faq .faq-rhythm__lead {
  margin: var(--g3) 0 0;
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--body-soft);
}

.page-faq .faq-rhythm__lead a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-timeline {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--g4);
  list-style: none;
  margin: var(--g5) 0 0;
  padding: 0;
}

.page-faq .faq-timeline__node {
  position: relative;
  padding-top: var(--g3);
  border-top: 1px solid var(--line);
}

.page-faq .faq-timeline__pip {
  position: absolute;
  top: -1px;
  left: 0;
  width: 14px;
  height: 14px;
  border-radius: 3px;
  transform: translateY(-50%) rotate(45deg);
}

.page-faq .faq-timeline__pip--1 { background: var(--orange); box-shadow: 0 0 0 4px rgba(255, 106, 26, .16); }
.page-faq .faq-timeline__pip--2 { background: var(--amber); box-shadow: 0 0 0 4px rgba(255, 176, 32, .16); }
.page-faq .faq-timeline__pip--3 { background: var(--cyan); box-shadow: 0 0 0 4px rgba(43, 227, 208, .16); }
.page-faq .faq-timeline__pip--4 { background: var(--magenta); box-shadow: 0 0 0 4px rgba(255, 61, 127, .16); }

.page-faq .faq-timeline__when {
  display: block;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--mist);
}

.page-faq .faq-timeline__what {
  margin: var(--g2) 0 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--body-soft);
}

/* ---------- 三档难度 ---------- */
.page-faq .faq-stage {
  position: relative;
  padding: var(--g5) 0;
}

.page-faq .faq-stage--basic {
  background: var(--ink-3);
}

.page-faq .faq-stage--advanced {
  background: var(--ink-2);
}

.page-faq .faq-stage--event {
  background-color: var(--ink);
  background-image: radial-gradient(720px 340px at 18% -6%, rgba(255, 106, 26, .18), transparent 72%);
}

.page-faq .faq-stage__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--g4);
}

.page-faq .faq-level {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  margin: 0 0 var(--g3);
  padding: 6px 18px 6px 14px;
  border-radius: var(--r-pill);
  border: 1px solid currentColor;
  font-size: 13px;
  letter-spacing: .08em;
}

.page-faq .faq-level__icon {
  width: 18px;
  height: 18px;
  flex: none;
}

.page-faq .faq-level--basic { color: var(--orange); background: rgba(255, 106, 26, .1); }
.page-faq .faq-level--adv { color: var(--amber); background: rgba(255, 176, 32, .1); }
.page-faq .faq-level--event { color: var(--cyan); background: rgba(43, 227, 208, .1); }

.page-faq .faq-stage__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(25px, 4.6vw, 40px);
  line-height: 1.16;
  letter-spacing: -.015em;
  color: var(--paper);
}

.page-faq .faq-stage__lead {
  margin: var(--g3) 0 0;
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--body-soft);
}

.page-faq .faq-stage__lead a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-faq .faq-stage__media {
  margin: 0;
}

.page-faq .faq-list {
  list-style: none;
  display: grid;
  gap: var(--g3);
  margin: var(--g4) 0 0;
  padding: 0;
}

.page-faq .faq-list > li {
  position: relative;
  padding-left: 26px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--body-soft);
}

.page-faq .faq-list > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 14px;
  height: 2px;
  border-radius: 2px;
  background: var(--orange);
}

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

.page-faq .faq-cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--g4);
  margin-top: var(--g5);
}

.page-faq .faq-card {
  position: relative;
  padding: var(--g4) var(--g3) var(--g3);
  border-radius: var(--r-lg);
  background: rgba(255, 255, 255, .035);
}

.page-faq .faq-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 44px;
  height: 3px;
  border-radius: 2px;
  background: var(--amber);
}

.page-faq .faq-card__title {
  margin: 0 0 var(--g2);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.4;
  color: var(--paper);
}

.page-faq .faq-card__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--body-soft);
}

.page-faq .faq-order {
  list-style: none;
  counter-reset: faqstep;
  display: grid;
  gap: var(--g3);
  margin: var(--g5) 0 0;
  padding: 0;
}

.page-faq .faq-order > li {
  counter-increment: faqstep;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--g3);
  align-items: start;
  padding-bottom: var(--g3);
  border-bottom: 1px dashed var(--line);
}

.page-faq .faq-order > li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-order > li::before {
  content: counter(faqstep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .1em;
  color: var(--cyan);
  padding-top: .28em;
}

.page-faq .faq-order__title {
  margin: 0 0 var(--g1);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.42;
  color: var(--paper);
}

.page-faq .faq-order__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--body-soft);
}

/* ---------- 常见问题 ---------- */
.page-faq .faq-qa {
  background: var(--ink);
  position: relative;
}

.page-faq .faq-qa__list {
  display: grid;
  gap: var(--g2);
  margin-top: var(--g4);
}

.page-faq .qa {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--ink-2);
  overflow: hidden;
  transition: border-color .22s var(--ease), background .22s var(--ease);
}

.page-faq .qa[open] {
  background: var(--ink-3);
  border-color: rgba(43, 227, 208, .45);
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--g3);
  min-height: 44px;
  padding: var(--g3);
  cursor: pointer;
  list-style: none;
  color: var(--paper);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.5;
}

.page-faq .qa__q::-webkit-details-marker { display: none; }
.page-faq .qa__q::marker { content: ""; }

.page-faq .qa__num {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--orange);
}

.page-faq .qa__text {
  min-width: 0;
}

.page-faq .qa__chev {
  position: relative;
  width: 22px;
  height: 22px;
  flex: none;
  border-radius: var(--r-pill);
  background: rgba(43, 227, 208, .14);
  transition: transform .24s var(--ease), background .24s var(--ease);
}

.page-faq .qa__chev::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 7px;
  height: 7px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: translate(-50%, -72%) rotate(45deg);
}

.page-faq .qa[open] .qa__chev {
  transform: rotate(180deg);
  background: rgba(43, 227, 208, .24);
}

.page-faq .qa__q:hover .qa__chev,
.page-faq .qa__q:focus-visible .qa__chev {
  background: rgba(255, 106, 26, .3);
}

.page-faq .qa__a {
  padding: 0 var(--g3) var(--g3);
  font-size: 16px;
  line-height: 1.82;
  color: var(--body-soft);
}

.page-faq .qa__a p {
  margin: 0 0 10px;
}

.page-faq .qa__a p:first-child {
  color: var(--paper);
  font-weight: 700;
}

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

/* ---------- 订阅与纠错 ---------- */
.page-faq .faq-follow {
  position: relative;
  background: var(--ink-2);
  border-top: 1px solid var(--line);
}

.page-faq .faq-follow::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--orange));
}

.page-faq .faq-follow__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--g5);
}

.page-faq .faq-follow__block {
  position: relative;
}

.page-faq .faq-follow__kicker {
  margin: 0 0 var(--g2);
  font-size: 13px;
  letter-spacing: .14em;
  color: var(--mist);
}

.page-faq .faq-follow__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(22px, 4vw, 32px);
  line-height: 1.2;
  letter-spacing: -.012em;
  color: var(--paper);
}

.page-faq .faq-follow__text {
  margin: var(--g3) 0 var(--g4);
  max-width: 52ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--body-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--g4) var(--g5);
  }
}

@media (min-width: 780px) {
  .page-faq .faq-cols {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--g3);
  }

  .page-faq .faq-order > li {
    grid-template-columns: 56px 1fr;
    gap: var(--g4);
  }
}

@media (min-width: 860px) {
  .page-faq .faq-wall {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    overflow: visible;
    padding: 0;
  }

  .page-faq .faq-wall__item {
    flex: initial;
  }

  .page-faq .faq-follow__grid {
    grid-template-columns: 1.12fr .88fr;
    gap: var(--g5);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-stage__grid {
    grid-template-columns: 7fr 5fr;
    align-items: start;
    gap: var(--g5);
  }

  .page-faq .faq-timeline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-hero {
    padding-top: var(--g5);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-wall__link,
  .page-faq .faq-tag,
  .page-faq .qa,
  .page-faq .qa__chev {
    transition: none;
  }

  .page-faq .faq-wall__link:hover,
  .page-faq .faq-tag:hover {
    transform: none;
  }
}