.page-faq {
  --faq-ink-soft: rgba(10, 26, 19, .78);
  --faq-ink-faint: rgba(10, 26, 19, .14);
  background: var(--ink);
  color: var(--paper);
  padding-block: clamp(22px, 4vw, 44px) clamp(56px, 9vw, 112px);
}

.page-faq .breadcrumb {
  margin-bottom: clamp(16px, 2.5vw, 26px);
}

.page-faq .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--text-faint);
}

.page-faq .breadcrumb__step {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.page-faq .breadcrumb__link {
  color: var(--text-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-faq .breadcrumb__link:hover,
.page-faq .breadcrumb__link:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-faq .breadcrumb__sep {
  color: var(--line);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  max-width: 940px;
  padding-bottom: clamp(26px, 4vw, 48px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-hero .section__eyebrow {
  display: inline-block;
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--panel);
  color: var(--orange);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  margin: 0;
}

.page-faq .faq-hero__title {
  margin: 18px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -.022em;
  font-size: clamp(29px, 6.1vw, 54px);
  line-height: 1.18;
  color: var(--paper);
}

.page-faq .faq-hero__lead {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: clamp(15.5px, 1.6vw, 17px);
  line-height: 1.95;
  color: var(--text-soft);
}

.page-faq .faq-facts {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-facts__item {
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  padding: 9px 15px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--panel);
}

.page-faq .faq-facts__num {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 22px;
  line-height: 1;
  color: var(--orange);
}

.page-faq .faq-facts__label {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--text-faint);
}

/* ---------- 版式 ---------- */

.page-faq .faq-layout {
  margin-top: clamp(30px, 5vw, 56px);
  display: grid;
  gap: clamp(26px, 4vw, 52px);
}

.page-faq .faq-rail {
  display: none;
}

.page-faq .faq-rail__title {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .24em;
  color: var(--text-faint);
}

.page-faq .faq-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--line);
}

.page-faq .faq-rail__link {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 6px;
  align-items: baseline;
  padding: 9px 0 9px 6px;
  margin-left: -1px;
  border-left: 2px solid transparent;
  color: var(--text-soft);
  font-size: 13.5px;
  line-height: 1.55;
  text-decoration: none;
  transition: color .2s ease, border-color .2s ease;
}

.page-faq .faq-rail__link:hover,
.page-faq .faq-rail__link:focus-visible {
  color: var(--paper);
  border-left-color: var(--orange);
}

.page-faq .faq-rail__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--orange);
}

.page-faq .faq-section {
  padding-top: clamp(28px, 4vw, 44px);
  border-top: 1px solid var(--line);
  margin-bottom: clamp(42px, 6vw, 84px);
}

.page-faq .faq-body > .faq-section:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-faq .faq-section .section__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  color: var(--orange);
}

.page-faq .faq-section .section__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -.018em;
  font-size: clamp(23px, 3.6vw, 36px);
  line-height: 1.24;
  color: var(--paper);
}

.page-faq .faq-section .section__lead {
  margin: 12px 0 0;
  max-width: 58ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--text-soft);
}

.page-faq .faq-note {
  margin: clamp(20px, 3vw, 28px) 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--cyan);
  background: var(--panel);
  border-radius: 0 var(--r) var(--r) 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--text-soft);
}

/* ---------- 三步上手 ---------- */

.page-faq .faq-steps {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-faq .faq-step {
  padding: 20px 20px 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
  border-radius: var(--r);
  transition: transform .22s ease, box-shadow .22s ease;
}

.page-faq .faq-step:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lift);
}

.page-faq .faq-step__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--orange);
}

.page-faq .faq-step__title {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-step__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.88;
  color: var(--text-soft);
}

/* ---------- 配图 ---------- */

.page-faq .faq-figure {
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 10px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r);
}

.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  border-radius: var(--r);
  object-fit: cover;
}

.page-faq .faq-figure__cap {
  margin: 10px 4px 2px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--text-faint);
}

/* ---------- 两端分工 ---------- */

.page-faq .faq-duo {
  margin-top: clamp(22px, 3vw, 32px);
  display: grid;
  gap: 16px;
}

.page-faq .faq-duo__col {
  padding: 22px;
  border-radius: var(--r);
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-faq .faq-duo__col--paper {
  background: var(--paper);
  border-color: var(--paper-2);
  color: var(--ink);
}

.page-faq .faq-duo__kicker {
  display: block;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--orange);
}

.page-faq .faq-duo__col--paper .faq-duo__kicker {
  color: var(--ink);
  opacity: .55;
}

.page-faq .faq-duo__title {
  margin: 0 0 14px;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-faq .faq-duo__col--paper .faq-duo__title {
  color: var(--ink);
}

.page-faq .faq-duo__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-faq .faq-duo__list li {
  position: relative;
  padding: 10px 0 10px 20px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--text-soft);
  border-bottom: 1px dashed var(--hair);
}

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

.page-faq .faq-duo__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 19px;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--cyan);
}

.page-faq .faq-duo__col--paper .faq-duo__list li {
  color: var(--faq-ink-soft);
  border-bottom-color: var(--faq-ink-faint);
}

.page-faq .faq-duo__col--paper .faq-duo__list li::before {
  background: var(--orange);
}

/* ---------- 读图 ---------- */

.page-faq .faq-legend {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-legend__item {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--panel);
}

.page-faq .faq-legend__key {
  display: block;
  padding-top: 4px;
}

.page-faq .faq-legend__key svg {
  display: block;
  width: 64px;
  height: 30px;
}

.page-faq .lg-shot {
  fill: var(--cyan);
}

.page-faq .lg-on {
  fill: var(--cyan);
  opacity: .5;
}

.page-faq .lg-in {
  fill: var(--cyan);
}

.page-faq .lg-out {
  fill: var(--orange);
  opacity: .7;
}

.page-faq .lg-yellow {
  fill: var(--yellow);
}

.page-faq .lg-red {
  fill: var(--red);
}

.page-faq .faq-legend__name {
  margin: 0 0 6px;
  font-size: 16.5px;
  font-weight: 800;
  color: var(--paper);
}

.page-faq .faq-legend__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.88;
  color: var(--text-soft);
}

/* ---------- 清晰度 ---------- */

.page-faq .faq-res {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-res__item {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--panel);
}

.page-faq .faq-res__item--pick {
  border-color: rgba(255, 122, 24, .6);
  background: linear-gradient(180deg, rgba(255, 122, 24, .1), rgba(255, 122, 24, 0) 70%), var(--panel);
}

.page-faq .faq-res__tag {
  display: inline-block;
  margin-bottom: 10px;
  padding: 4px 9px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--metal);
  background: var(--ink);
}

.page-faq .faq-res__item--pick .faq-res__tag {
  color: var(--ink);
  background: var(--orange);
  border-color: var(--orange);
}

.page-faq .faq-res__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.88;
  color: var(--text-soft);
}

/* ---------- 问答 ---------- */

.page-faq .faq-qa-list {
  margin-top: clamp(20px, 3vw, 30px);
}

.page-faq .faq-qa {
  margin-bottom: 10px;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--panel);
  overflow: hidden;
  transition: border-color .2s ease;
}

.page-faq .faq-qa[open] {
  border-color: rgba(255, 122, 24, .55);
}

.page-faq .faq-qa__q {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 15px 46px 15px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--paper);
}

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

.page-faq .faq-qa__q::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--orange);
}

.page-faq .faq-qa[open] .faq-qa__q::after {
  content: "–";
}

.page-faq .faq-qa__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--orange);
}

.page-faq .faq-qa__a {
  padding: 0 18px 18px 42px;
  font-size: 14.8px;
  line-height: 1.92;
  color: var(--text-soft);
}

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

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

/* ---------- 延伸入口 ---------- */

.page-faq .faq-next {
  padding: clamp(22px, 3.6vw, 34px);
  border: 1px solid var(--line);
  border-top: 3px solid var(--orange);
  border-radius: var(--r);
  background: var(--panel);
}

.page-faq .faq-next__title {
  margin: 0;
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 900;
  letter-spacing: -.015em;
  color: var(--paper);
}

.page-faq .faq-next__text {
  margin: 12px 0 0;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.88;
  color: var(--text-soft);
}

.page-faq .faq-next__links {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.page-faq .faq-next__fine {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-faint);
}

.page-faq .faq-next__fine-link {
  color: var(--metal);
  text-decoration: none;
  border-bottom: 1px solid var(--hair);
}

.page-faq .faq-next__fine-link:hover,
.page-faq .faq-next__fine-link:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .faq-duo {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .page-faq .faq-res {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }

  .page-faq .faq-legend__item {
    grid-template-columns: 76px minmax(0, 1fr);
    padding: 18px 20px;
  }
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(168px, 2.4fr) minmax(0, 9.6fr);
    align-items: start;
  }

  .page-faq .faq-rail {
    display: block;
    position: sticky;
    top: 96px;
  }

  .page-faq .faq-section {
    padding-top: clamp(32px, 3.4vw, 48px);
  }

  .page-faq .faq-figure {
    padding: 14px;
  }
}

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

  .page-faq .faq-step:hover {
    transform: none;
  }
}