.page-faq {
  --faq-gap: clamp(24px, 3.4vw, 44px);
  --faq-step-gap: clamp(40px, 6vw, 88px);
  background: linear-gradient(180deg, var(--night) 0%, var(--ink) 100%);
  color: var(--paper);
  overflow-x: hidden;
}

.page-faq .crumbs {
  padding-top: clamp(20px, 3vw, 34px);
  padding-bottom: 6px;
  font-size: 13px;
  color: var(--mist);
}

.page-faq .crumbs a {
  color: var(--mist);
  text-decoration: none;
}

.page-faq .crumbs a:hover {
  color: var(--cyan);
}

.page-faq .crumbs [aria-current="page"] {
  color: var(--paper);
}

.page-faq .crumbs__sep {
  margin: 0 8px;
  color: rgba(143, 184, 174, 0.5);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  margin-top: clamp(18px, 3vw, 30px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  background: radial-gradient(120% 140% at 88% 10%, rgba(61, 242, 212, 0.12) 0%, transparent 58%),
              linear-gradient(155deg, var(--panel) 0%, var(--night) 62%, var(--ink) 100%);
}

.page-faq .faq-hero__media {
  position: absolute;
  inset: 0;
  opacity: 0.22;
  pointer-events: none;
}

.page-faq .faq-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  max-width: 100%;
  filter: saturate(0.7) contrast(1.05);
}

.page-faq .faq-hero__body {
  position: relative;
  z-index: 1;
  padding-top: clamp(48px, 8vw, 108px);
  padding-bottom: clamp(48px, 8vw, 100px);
  max-width: 1240px;
}

.page-faq .faq-hero h1 {
  margin: 18px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(34px, 6.4vw, 68px);
  line-height: 1.12;
  letter-spacing: 0.02em;
  color: var(--paper);
  max-width: 16ch;
}

.page-faq .faq-hero__lead {
  margin: 22px 0 0;
  max-width: 56ch;
  font-size: clamp(15px, 1.6vw, 16px);
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-hero__trace {
  display: flex;
  flex-wrap: wrap;
  gap: 10px clamp(14px, 3vw, 32px);
  margin: clamp(28px, 5vw, 46px) 0 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-hero__trace li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding-right: clamp(14px, 3vw, 32px);
  font-size: 14px;
  color: var(--paper);
  border-right: 1px solid var(--line);
}

.page-faq .faq-hero__trace li:last-child {
  border-right: none;
  padding-right: 0;
}

.page-faq .faq-hero__trace .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
  letter-spacing: 0.12em;
}

/* ---------- 画布 ---------- */

.page-faq .faq-canvas {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  padding-top: clamp(40px, 6vw, 72px);
  padding-bottom: clamp(56px, 8vw, 110px);
}

/* ---------- 步骤索引 ---------- */

.page-faq .faq-index {
  align-self: start;
}

.page-faq .faq-index .eyebrow {
  color: var(--cyan);
}

.page-faq .faq-index__list {
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-index__list a {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 9px 14px;
  font-size: 13px;
  color: var(--mist);
  text-decoration: none;
  border: 1px solid var(--line-soft);
  background: rgba(18, 53, 44, 0.42);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 12px 100%, 0 calc(100% - 12px));
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.page-faq .faq-index__list a:hover,
.page-faq .faq-index__list a:focus-visible {
  color: var(--paper);
  border-color: var(--cyan);
  background: rgba(61, 242, 212, 0.12);
}

.page-faq .faq-index__list .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-faq .faq-index__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 步骤主体 ---------- */

.page-faq .faq-stream {
  display: flex;
  flex-direction: column;
  gap: var(--faq-step-gap);
  min-width: 0;
}

.page-faq .faq-step {
  position: relative;
  padding-top: clamp(22px, 3vw, 34px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: clamp(48px, 9vw, 96px);
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent);
}

.page-faq .section-head {
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-faq .section-head .eyebrow {
  color: var(--cyan);
  display: flex;
  align-items: center;
  gap: 10px;
}

.page-faq .section-head .eyebrow .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-faq .section-head__title {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.24;
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-faq .section-head__note {
  margin: 12px 0 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 编号步骤 ---------- */

.page-faq .faq-num {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: faqnum;
}

.page-faq .faq-num li {
  position: relative;
  counter-increment: faqnum;
  padding: 0 0 20px 46px;
  margin-bottom: 20px;
  border-bottom: 1px dashed var(--line-soft);
}

.page-faq .faq-num li:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.page-faq .faq-num li::before {
  content: counter(faqnum, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--night);
  background: var(--cyan);
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 9px 100%, 0 calc(100% - 9px));
}

.page-faq .faq-num p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--paper);
}

.page-faq .faq-num a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 242, 212, 0.4);
}

.page-faq .faq-num a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 提示条 ---------- */

.page-faq .faq-callout {
  margin-top: clamp(22px, 3vw, 32px);
  padding: 18px 22px;
  background: rgba(18, 53, 44, 0.68);
  border-left: 3px solid var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
}

.page-faq .faq-callout p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-callout .mono {
  display: inline-block;
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  text-transform: uppercase;
}

.page-faq .faq-callout--flare {
  border-left-color: var(--flare);
}

.page-faq .faq-callout--flare .mono {
  color: var(--flare);
}

/* ---------- 快速扫读 ---------- */

.page-faq .faq-quick {
  margin-top: clamp(24px, 3.4vw, 36px);
  padding: 22px clamp(18px, 3vw, 28px);
  background: var(--panel);
  background-image: linear-gradient(90deg, rgba(61, 242, 212, 0.08) 0 1px, transparent 1px 100%);
  background-size: 25% 100%;
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, var(--cut) 100%, 0 calc(100% - var(--cut)));
}

.page-faq .faq-quick .eyebrow {
  color: var(--amber);
}

.page-faq .faq-quick ul {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-faq .faq-quick li {
  display: grid;
  gap: 4px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-quick li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-faq .faq-quick .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  text-transform: uppercase;
}

/* ---------- 图片 ---------- */

.page-faq .faq-figure {
  margin: 0 0 clamp(22px, 3vw, 32px);
  position: relative;
}

.page-faq .faq-figure .figure__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--line);
}

.page-faq .faq-figure .figure__cap {
  display: block;
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
  font-family: var(--font-mono);
}

/* ---------- 主客双栏 ---------- */

.page-faq .faq-versus {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border: 1px solid var(--line);
  background: rgba(5, 11, 9, 0.55);
}

.page-faq .faq-versus__col {
  padding: clamp(18px, 3vw, 26px);
}

.page-faq .faq-versus__col--home {
  background: linear-gradient(180deg, rgba(61, 242, 212, 0.09), transparent 70%);
}

.page-faq .faq-versus__col--away {
  background: linear-gradient(180deg, rgba(255, 90, 54, 0.1), transparent 70%);
}

.page-faq .faq-versus__tag {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.page-faq .faq-versus__col--home .faq-versus__tag {
  color: var(--cyan);
}

.page-faq .faq-versus__col--away .faq-versus__tag {
  color: var(--flare);
}

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

.page-faq .faq-versus__col li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 9px;
  font-size: 14px;
  color: var(--paper);
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-versus__col li:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.page-faq .faq-versus__col li .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mist);
  white-space: nowrap;
}

.page-faq .faq-versus__split {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 44px;
}

.page-faq .faq-versus__line {
  position: absolute;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--flare), transparent);
}

.page-faq .faq-versus__line::after {
  content: none;
}

.page-faq .faq-versus__vs {
  position: relative;
  z-index: 1;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--night);
  background: var(--paper);
  padding: 4px 10px;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}

.page-faq .faq-legend {
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-faq .faq-legend li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-legend__dot {
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  margin-top: 8px;
  transform: rotate(45deg);
}

.page-faq .faq-legend__dot--cyan {
  background: var(--cyan);
}

.page-faq .faq-legend__dot--flare {
  background: var(--flare);
}

.page-faq .faq-legend__dot--amber {
  background: var(--amber);
}

/* ---------- 分栏说明 ---------- */

.page-faq .faq-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 28px);
}

.page-faq .faq-split__main p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.9;
  color: var(--paper);
}

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

.page-faq .faq-split__main a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 242, 212, 0.4);
}

.page-faq .faq-split__side {
  padding: clamp(18px, 3vw, 24px);
}

.page-faq .faq-split__side .eyebrow {
  color: var(--amber);
}

.page-faq .faq-ticks {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.page-faq .faq-ticks li {
  display: grid;
  gap: 5px;
  padding-left: 14px;
  position: relative;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
}

.page-faq .faq-ticks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.page-faq .faq-ticks .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

/* ---------- 手风琴 ---------- */

.page-faq .faq-accordion {
  display: grid;
  border-top: 1px solid var(--line);
}

.page-faq .faq-item {
  border-bottom: 1px solid var(--line);
}

.page-faq .expander__btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: clamp(16px, 2.6vw, 22px) 0;
  background: none;
  border: 0;
  cursor: pointer;
  text-align: left;
  color: var(--paper);
  font-family: var(--font-head);
  font-size: clamp(15px, 2vw, 17px);
  font-weight: 700;
  line-height: 1.5;
  transition: color 0.2s ease;
}

.page-faq .expander__btn:hover {
  color: var(--cyan);
}

.page-faq .faq-item__sign {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 7px) 0, 100% 7px, 100% 100%, 7px 100%, 0 calc(100% - 7px));
}

.page-faq .faq-item__sign::before,
.page-faq .faq-item__sign::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform 0.24s ease, opacity 0.24s ease;
}

.page-faq .faq-item__sign::before {
  left: 5px;
  right: 5px;
  top: 50%;
  height: 1px;
  transform: translateY(-50%);
}

.page-faq .faq-item__sign::after {
  top: 5px;
  bottom: 5px;
  left: 50%;
  width: 1px;
  transform: translateX(-50%);
}

.page-faq .expander__btn[aria-expanded="true"] .faq-item__sign::after {
  transform: translateX(-50%) scaleY(0);
  opacity: 0;
}

.page-faq .expander__btn[aria-expanded="true"] {
  color: var(--cyan);
}

.page-faq .expander__panel {
  display: none;
  overflow: hidden;
}

.page-faq .expander__panel[data-open="true"] {
  display: block;
}

.page-faq .expander__inner {
  padding: 0 0 clamp(18px, 2.6vw, 24px);
  max-width: 68ch;
}

.page-faq .expander__inner p {
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--mist);
}

.page-faq .expander__inner a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 242, 212, 0.4);
}

/* ---------- 结尾 ---------- */

.page-faq .faq-outro {
  padding: clamp(28px, 4.4vw, 48px) clamp(20px, 3.4vw, 40px);
  background: linear-gradient(135deg, var(--violet) 0%, var(--panel) 62%, var(--ink) 100%);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, var(--cut) 100%, 0 calc(100% - var(--cut)));
}

.page-faq .faq-outro h2 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(22px, 3.2vw, 32px);
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-faq .faq-outro > p {
  margin: 12px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-outro__links {
  margin-top: clamp(20px, 3vw, 30px);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-faq .faq-versus {
    grid-template-columns: 1fr auto 1fr;
    align-items: stretch;
  }

  .page-faq .faq-versus__split {
    min-height: auto;
    width: 56px;
  }

  .page-faq .faq-versus__line {
    top: 0;
    bottom: 0;
    width: 1px;
    background: linear-gradient(180deg, transparent, var(--cyan), var(--flare), transparent);
  }

  .page-faq .faq-versus__line::after {
    content: "";
    position: absolute;
    top: 50%;
    left: -3px;
    width: 7px;
    height: 7px;
    background: var(--paper);
    transform: rotate(45deg);
  }

  .page-faq .faq-versus__vs {
    padding: 5px 8px;
  }
}

@media (min-width: 1024px) {
  .page-faq .faq-canvas {
    grid-template-columns: minmax(180px, 232px) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 68px);
  }

  .page-faq .faq-index {
    position: sticky;
    top: clamp(24px, 4vw, 48px);
  }

  .page-faq .faq-index__list {
    flex-direction: column;
    flex-wrap: nowrap;
  }

  .page-faq .faq-index__list a {
    width: 100%;
  }

  .page-faq .faq-index__list li::before {
    content: none;
  }

  .page-faq .faq-quick ul {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 20px;
  }

  .page-faq .faq-quick li {
    border-bottom: none;
    padding-bottom: 0;
    padding-right: 18px;
    border-right: 1px solid var(--line-soft);
  }

  .page-faq .faq-quick li:last-child {
    border-right: none;
    padding-right: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-index__list a,
  .page-faq .expander__btn,
  .page-faq .faq-item__sign::before,
  .page-faq .faq-item__sign::after {
    transition: none;
  }
}