.page-faq {
  --faq-edge: 1px solid var(--line);
  background: var(--abyss);
  color: var(--foam);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-faq .guide-block {
  padding-block: clamp(36px, 6vw, 76px);
}

/* ---------- 首屏 ---------- */
.page-faq .guide-top {
  padding-block: clamp(28px, 5vw, 58px) clamp(10px, 2vw, 18px);
  border-bottom: var(--faq-edge);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(53, 242, 230, 0.12), transparent 62%),
    radial-gradient(90% 80% at 0% 100%, rgba(255, 61, 190, 0.09), transparent 66%);
}

.page-faq .guide-top__head {
  max-width: 74ch;
}

.page-faq .guide-top h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 5.4vw, 62px);
  line-height: 1.1;
  letter-spacing: -0.015em;
  transform: skewX(-1.5deg);
  transform-origin: left bottom;
  text-wrap: balance;
}

.page-faq .guide-top__lede {
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  max-width: 66ch;
  font-size: clamp(15px, 1.5vw, 18px);
  line-height: 1.78;
  color: var(--mist);
}

/* ---------- 三步标签轨 ---------- */
.page-faq .step-rail {
  list-style: none;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .step-rail a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--harbor);
  border: var(--faq-edge);
  border-left: 3px solid var(--cyan);
  color: var(--foam);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  transition: background 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.page-faq .step-rail a .mono {
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.16em;
}

.page-faq .step-rail a:hover,
.page-faq .step-rail a:focus-visible {
  background: var(--paper);
  transform: translateX(2px);
  box-shadow: 0 0 0 1px var(--cyan), 0 12px 26px rgba(53, 242, 230, 0.14);
  outline: none;
}

/* ---------- 三步上手 ---------- */
.page-faq .steps__figure {
  margin: clamp(20px, 3vw, 30px) 0 0;
}

.page-faq .steps-grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-faq .step-card {
  position: relative;
  padding: 22px 20px 24px;
  background: var(--harbor);
  border: var(--faq-edge);
  border-top: 2px solid var(--line);
  scroll-margin-top: 96px;
  transition: border-color 200ms ease, background 200ms ease;
}

.page-faq .step-card:target {
  border-top-color: var(--cyan);
  background: var(--paper);
}

.page-faq .step-card__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 46px;
  padding: 4px 8px;
  background: rgba(53, 242, 230, 0.12);
  border: 1px solid rgba(53, 242, 230, 0.42);
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.14em;
}

.page-faq .step-card h3 {
  margin: 14px 0 10px;
  font-family: var(--font-display);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.35;
}

.page-faq .step-card p {
  margin: 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.78;
}

.page-faq .step-card__list {
  margin: 14px 0 0;
  padding-left: 18px;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.7;
}

.page-faq .step-card__list li + li {
  margin-top: 6px;
}

/* ---------- 问答区 ---------- */
.page-faq .faq {
  border-block: var(--faq-edge);
  background: rgba(10, 32, 56, 0.55);
}

.page-faq .faq__layout {
  display: grid;
  gap: clamp(24px, 4vw, 46px);
}

.page-faq .faq__index nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
}

.page-faq .faq__index a {
  flex: 0 0 auto;
  padding: 8px 14px;
  background: var(--harbor);
  border: var(--faq-edge);
  color: var(--mist);
  text-decoration: none;
  font-size: 14px;
  white-space: nowrap;
  transition: background 160ms ease, color 160ms ease, border-color 160ms ease;
}

.page-faq .faq__index a:hover,
.page-faq .faq__index a:focus-visible {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--abyss);
  outline: none;
}

.page-faq .qa-group {
  margin-top: clamp(20px, 3vw, 30px);
  background: var(--harbor);
  border: var(--faq-edge);
  scroll-margin-top: 100px;
}

.page-faq .qa-group:first-of-type {
  margin-top: clamp(24px, 3.4vw, 34px);
}

.page-faq .qa-group > h3 {
  margin: 0;
  padding: 13px 18px;
  background: var(--paper);
  border-bottom: var(--faq-edge);
  font-family: var(--font-display);
  font-size: 16px;
  letter-spacing: 0.02em;
}

.page-faq .qa-group > h3::before {
  content: "";
  display: inline-block;
  width: 3px;
  height: 14px;
  margin-right: 10px;
  vertical-align: -1px;
  background: var(--magenta);
}

.page-faq .qa + .qa {
  border-top: var(--faq-edge);
}

.page-faq .qa summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--foam);
}

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

.page-faq .qa summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-faq .qa summary::after {
  content: "+";
  margin-left: auto;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
}

.page-faq .qa[open] summary {
  color: var(--cyan);
}

.page-faq .qa[open] summary::after {
  content: "\2212";
}

.page-faq .qa__num {
  color: var(--mist);
  font-size: 11px;
  letter-spacing: 0.1em;
}

.page-faq .qa__body {
  padding: 0 18px 18px 18px;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.78;
}

.page-faq .qa__body p {
  margin: 0;
  max-width: 66ch;
}

.page-faq .qa__body p + p {
  margin-top: 8px;
}

/* ---------- 客户端 ---------- */
.page-faq .client {
  background: linear-gradient(180deg, rgba(15, 43, 69, 0.7), rgba(6, 21, 37, 0.9));
}

.page-faq .client__layout {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-faq .client__figure {
  justify-self: center;
  width: min(100%, 340px);
}

.page-faq .client__lede {
  margin: 14px 0 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.78;
  max-width: 60ch;
}

.page-faq .client__steps {
  list-style: none;
  counter-reset: cstep;
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .client__steps li {
  counter-increment: cstep;
  position: relative;
  padding-left: 46px;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.78;
}

.page-faq .client__steps li::before {
  content: counter(cstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  padding: 2px 6px;
  border: 1px solid rgba(255, 138, 61, 0.55);
  color: var(--sunset);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.page-faq .client__steps strong {
  color: var(--foam);
}

.page-faq .client__foot {
  margin: clamp(18px, 2.6vw, 24px) 0 0;
}

/* ---------- 资料库导出 ---------- */
.page-faq .archive__split {
  display: grid;
  gap: clamp(20px, 3vw, 30px);
  margin-top: clamp(20px, 3vw, 30px);
}

.page-faq .archive__flow {
  list-style: none;
  counter-reset: astep;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .archive__flow li {
  counter-increment: astep;
  position: relative;
  padding: 20px 20px 20px 62px;
  background: var(--harbor);
  border: var(--faq-edge);
  border-left: 2px solid var(--violet);
}

.page-faq .archive__flow li::before {
  content: counter(astep, decimal-leading-zero);
  position: absolute;
  left: 18px;
  top: 20px;
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--violet);
  letter-spacing: 0.04em;
}

.page-faq .archive__flow h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 17px;
}

.page-faq .archive__flow p {
  margin: 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.75;
}

.page-faq .archive__fields {
  padding: clamp(20px, 3vw, 28px);
}

.page-faq .archive__chips {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .archive__chips .tag {
  font-size: 12px;
}

.page-faq .archive__note {
  margin: clamp(18px, 2.6vw, 24px) 0 0;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.72;
}

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

/* ---------- 赛程与阵容 ---------- */
.page-faq .docket {
  border-top: var(--faq-edge);
}

.page-faq .docket__grid {
  display: grid;
  gap: 16px;
}

.page-faq .docket__card {
  padding: clamp(22px, 3vw, 30px);
  background: var(--harbor);
  border: var(--faq-edge);
  border-bottom: 3px solid var(--cyan);
}

.page-faq .docket__card--alt {
  border-bottom-color: var(--magenta);
}

.page-faq .docket__card h3 {
  margin: 14px 0 10px;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.2vw, 25px);
  line-height: 1.34;
}

.page-faq .docket__card p {
  margin: 0 0 16px;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.78;
}

/* ---------- 联系我们 ---------- */
.page-faq .contact-band {
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(255, 138, 61, 0.16), transparent 60%),
    var(--harbor);
  border-top: var(--faq-edge);
}

.page-faq .contact-band__inner {
  display: grid;
  gap: clamp(24px, 3.4vw, 40px);
  align-items: start;
}

.page-faq .contact-band__copy h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.24;
  letter-spacing: -0.01em;
}

.page-faq .contact-band__copy p {
  margin: 0 0 20px;
  max-width: 58ch;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.78;
}

.page-faq .contact-band__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: var(--faq-edge);
}

.page-faq .contact-band__list li {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: var(--faq-edge);
  font-size: 15px;
  line-height: 1.7;
  word-break: break-word;
}

.page-faq .contact-band__key {
  color: var(--mist);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.page-faq .contact-band__list .mono {
  color: var(--cyan);
  font-size: 15px;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-faq .qa__body {
    padding-left: 44px;
  }
}

@media (min-width: 860px) {
  .page-faq .step-rail {
    grid-template-columns: repeat(3, 1fr);
    position: relative;
  }

  .page-faq .step-rail::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    height: 1px;
    background: linear-gradient(90deg, var(--cyan), var(--violet) 55%, var(--magenta));
    opacity: 0.55;
    z-index: 0;
  }

  .page-faq .step-rail li {
    position: relative;
    z-index: 1;
  }

  .page-faq .docket__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-faq .contact-band__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 420px);
  }
}

@media (min-width: 900px) {
  .page-faq .steps-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
    align-items: start;
  }

  .page-faq .step-card:nth-child(2) {
    margin-top: 30px;
  }

  .page-faq .step-card:nth-child(3) {
    margin-top: 60px;
  }

  .page-faq .client__layout {
    grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 52px);
  }

  .page-faq .client__figure {
    justify-self: start;
    width: 100%;
  }

  .page-faq .archive__split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq__layout {
    grid-template-columns: 216px minmax(0, 1fr);
    gap: clamp(28px, 4vw, 52px);
  }

  .page-faq .faq__index {
    position: sticky;
    top: 92px;
    align-self: start;
  }

  .page-faq .faq__index nav {
    display: grid;
    gap: 6px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-faq .faq__index a {
    white-space: normal;
    border-left: 2px solid var(--line);
  }

  .page-faq .faq__index a:hover,
  .page-faq .faq__index a:focus-visible {
    background: var(--paper);
    border-color: var(--line);
    border-left-color: var(--cyan);
    color: var(--foam);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .step-rail a,
  .page-faq .step-card,
  .page-faq .faq__index a {
    transition: none;
  }

  .page-faq .step-rail a:hover,
  .page-faq .step-rail a:focus-visible {
    transform: none;
  }

  .page-faq .guide-top h1 {
    transform: none;
  }
}