.page-faq {
  --faq-answer: #A6B8CB;
  --faq-gap: clamp(20px, 3.4vw, 36px);
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
  padding-bottom: clamp(40px, 7vw, 88px);
  min-width: 0;
  overflow-wrap: break-word;
}

.page-faq .crumbs {
  padding-top: clamp(14px, 3vw, 26px);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  padding-block: clamp(22px, 4vw, 44px) clamp(30px, 5vw, 56px);
  border-bottom: 1px solid var(--line);
}

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

.page-faq .faq-hero h1 {
  margin: 0.5rem 0 0.9rem;
  font-size: clamp(2rem, 5.6vw, 3.9rem);
  line-height: 1.1;
  font-weight: 900;
  letter-spacing: -0.012em;
  color: var(--ice);
}

.page-faq .faq-hero__lead {
  max-width: 48ch;
  margin: 0;
  font-size: clamp(0.96rem, 1.6vw, 1.06rem);
  line-height: 1.85;
  color: var(--faq-answer);
}

.page-faq .faq-hero__linkrow {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 1.5rem;
}

.page-faq .faq-hero__dial svg {
  display: block;
  width: min(100%, 280px);
  height: auto;
  margin-inline: auto;
}

@media (min-width: 900px) {
  .page-faq .faq-hero {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.8fr);
    align-items: center;
  }
  .page-faq .faq-hero__dial svg {
    width: min(100%, 320px);
    margin-inline: auto;
  }
}

/* ---------- 区块通用 ---------- */
.page-faq .faq-section {
  padding-block: clamp(32px, 5.5vw, 62px);
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-section__head {
  display: grid;
  gap: 8px;
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-faq .faq-section__title {
  margin: 0;
  font-size: clamp(1.5rem, 3.2vw, 2.1rem);
  font-weight: 800;
  letter-spacing: -0.006em;
  color: var(--ice);
}

.page-faq .faq-section__lead {
  max-width: 54ch;
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.8;
  color: var(--faq-answer);
}

/* ---------- 入门三步 ---------- */
.page-faq .stepboard {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .stepboard__map {
  background: linear-gradient(158deg, rgba(18, 42, 74, 0.95), rgba(10, 20, 32, 0.98));
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
  padding: clamp(14px, 2.6vw, 26px);
}

.page-faq .stepboard__svg {
  display: block;
  width: 100%;
  height: clamp(120px, 22vw, 190px);
}

.page-faq .stepboard__svg text {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  fill: #FF6A1A;
  pointer-events: none;
}

.page-faq .stepboard__svg a circle {
  transition: fill 180ms var(--ease), r 180ms var(--ease);
}

.page-faq .stepboard__svg a:hover circle,
.page-faq .stepboard__svg a:focus-visible circle {
  fill: #FF6A1A;
}

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

.page-faq .step-card {
  position: relative;
  background: var(--paper);
  color: var(--ink-text);
  padding: clamp(18px, 2.6vw, 26px);
  border-left: 4px solid var(--orange);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
  transition: transform 180ms var(--ease);
}

.page-faq .step-card:hover {
  transform: translate(4px, -4px);
}

.page-faq .step-card__no {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #FFFFFF;
  background: var(--orange);
  padding: 2px 9px;
}

.page-faq .step-card__title {
  margin: 0.7rem 0 0.45rem;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--ink-text);
}

.page-faq .step-card__text {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.78;
  color: var(--ink-text-soft);
}

.page-faq .step-card__link {
  display: inline-block;
  margin-top: 0.95rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: #7A3200;
  text-decoration: none;
  border-bottom: 2px solid var(--orange);
}

.page-faq .step-card__link:hover {
  color: var(--orange);
}

.page-faq .stepboard__figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink-2);
}

.page-faq .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-faq .media-frame__caption {
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--mute);
  border-top: 1px solid var(--line);
}

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

/* ---------- 问答主体布局 ---------- */
.page-faq .faq-body {
  display: grid;
  gap: var(--faq-gap);
  padding-top: clamp(28px, 5vw, 52px);
}

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

.page-faq .faq-toc {
  border: 1px solid var(--line);
  background: var(--arena);
  padding: 14px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
}

.page-faq .faq-toc__title {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  color: var(--mute);
}

.page-faq .faq-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-toc__link {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  padding: 8px 12px;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--ice);
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: background 180ms var(--ease), border-color 180ms var(--ease), color 180ms var(--ease);
}

.page-faq .faq-toc__link:hover,
.page-faq .faq-toc__link:focus-visible {
  background: rgba(39, 73, 111, 0.55);
  border-left-color: var(--orange);
  color: var(--orange-2);
}

.page-faq .faq-toc__no {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--orange);
}

@media (min-width: 980px) {
  .page-faq .faq-body {
    grid-template-columns: minmax(0, 244px) minmax(0, 1fr);
    align-items: start;
  }
  .page-faq .faq-toc {
    position: sticky;
    top: 96px;
  }
  .page-faq .faq-toc__list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }
}

/* ---------- 问答分组 ---------- */
.page-faq .faq-group {
  margin-bottom: clamp(28px, 4.5vw, 46px);
  scroll-margin-top: 110px;
}

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

.page-faq .faq-group__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 12px;
  margin-bottom: 4px;
  border-bottom: 2px solid var(--line);
}

.page-faq .faq-group__title {
  margin: 0;
  font-size: clamp(1.12rem, 2.2vw, 1.45rem);
  font-weight: 800;
  letter-spacing: -0.004em;
  color: var(--ice);
}

/* ---------- 可展开问答 ---------- */
.page-faq .qa {
  position: relative;
  padding-left: 14px;
  border-bottom: 1px solid var(--line);
}

.page-faq .qa::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 3px;
  background: transparent;
  transition: background 180ms var(--ease);
}

.page-faq .qa[open]::before {
  background: var(--orange);
}

.page-faq .qa__q {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
  padding: 16px 16px 16px 0;
  cursor: pointer;
  list-style: none;
}

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

.page-faq .qa__no {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--orange);
}

.page-faq .qa__text {
  font-size: clamp(0.96rem, 1.7vw, 1.05rem);
  font-weight: 700;
  line-height: 1.6;
  color: var(--ice);
  transition: color 180ms var(--ease);
}

.page-faq .qa__q:hover .qa__text,
.page-faq .qa__q:focus-visible .qa__text {
  color: var(--orange-2);
}

.page-faq .qa__arrow {
  width: 9px;
  height: 9px;
  margin-top: 8px;
  border-right: 2px solid var(--mute);
  border-bottom: 2px solid var(--mute);
  transform: rotate(45deg);
  transition: transform 220ms var(--ease), border-color 220ms var(--ease);
}

.page-faq .qa[open] .qa__arrow {
  transform: rotate(225deg);
  border-color: var(--orange);
}

.page-faq .qa__a {
  padding: 0 clamp(18px, 3vw, 40px) 20px 0;
  animation: faqDrop 240ms var(--ease) both;
}

.page-faq .qa__a p {
  max-width: 64ch;
  margin: 0 0 0.7rem;
  font-size: 0.93rem;
  line-height: 1.88;
  color: var(--faq-answer);
}

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

.page-faq .qa__link {
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--orange-2);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 163, 92, 0.5);
}

.page-faq .qa__link:hover {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

@keyframes faqDrop {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__a {
    animation: none;
  }
  .page-faq .step-card:hover {
    transform: none;
  }
  .page-faq .qa__arrow,
  .page-faq .qa__text,
  .page-faq .faq-toc__link {
    transition: none;
  }
}

.page-faq .faq-device-figure {
  margin: clamp(18px, 3vw, 28px) 0 0;
  border: 1px solid var(--line);
  background: var(--ink-2);
}

/* ---------- 仍需帮助 ---------- */
.page-faq .faq-help {
  margin-top: clamp(34px, 6vw, 64px);
  padding: clamp(24px, 4vw, 46px);
  background: linear-gradient(135deg, #122A4A 0%, #0E1B2B 70%);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
  scroll-margin-top: 110px;
}

.page-faq .faq-help__title {
  margin: 0.7rem 0 0;
  font-size: clamp(1.35rem, 3vw, 1.95rem);
  font-weight: 800;
  letter-spacing: -0.008em;
  color: var(--ice);
}

.page-faq .faq-help__lead {
  max-width: 58ch;
  margin: 0.65rem 0 0;
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--faq-answer);
}

.page-faq .faq-help__list {
  list-style: none;
  margin: 1.3rem 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .faq-help__list li {
  position: relative;
  padding-left: 20px;
  font-size: 0.91rem;
  line-height: 1.7;
  color: var(--ice);
}

.page-faq .faq-help__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 7px;
  height: 7px;
  background: var(--orange);
}

.page-faq .faq-help__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 1.6rem;
}

@media (min-width: 700px) {
  .page-faq .faq-help__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px 26px;
  }
}

@media (max-width: 420px) {
  .page-faq .stepboard__svg {
    height: 100px;
  }
  .page-faq .qa__q {
    gap: 9px;
  }
  .page-faq .qa__a {
    padding-right: 0;
  }
}
</main>