.page-faq {
  --faq-gap: clamp(32px, 6vw, 72px);
  --faq-rule: 1px solid var(--line);
  background: var(--ink);
  color: var(--paper);
  padding-bottom: clamp(48px, 8vw, 96px);
  overflow-x: clip;
}

.page-faq img {
  max-width: 100%;
  height: auto;
}

.page-faq .faq-crumb {
  padding-top: clamp(16px, 3vw, 28px);
}

.page-faq .faq-crumb .breadcrumbs {
  font-size: 12px;
}

/* —— 首屏 —— */
.page-faq .faq-hero {
  position: relative;
  margin-top: 12px;
  border-top: var(--faq-rule);
  border-bottom: var(--faq-rule);
  background:
    radial-gradient(circle at 78% 6%, rgba(51, 240, 206, 0.16), transparent 56%),
    radial-gradient(circle at 8% 96%, rgba(255, 106, 43, 0.1), transparent 52%),
    linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 100%);
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, rgba(143, 166, 158, 0.09) 1px, transparent 1px);
  background-size: 25% 100%;
  pointer-events: none;
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(28px, 5vw, 48px);
  padding-block: clamp(36px, 7vw, 78px);
}

.page-faq .faq-hero h1 {
  margin: 14px 0 0;
  max-width: 15em;
  font-family: var(--display);
  font-weight: 900;
  font-size: clamp(29px, 5.2vw, 50px);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero .lede {
  margin: 18px 0 0;
  max-width: 34em;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--paper-2);
}

.page-faq .faq-hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 30px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px dashed var(--line);
}

.page-faq .faq-hero__stats div {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-faq .faq-hero__stats .mono {
  font-size: 26px;
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: -0.01em;
}

.page-faq .faq-hero__stats span:last-child {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-faq .faq-hero__panel {
  align-self: end;
  padding: 22px 22px 24px;
  border: 1px solid var(--line);
  border-top: 2px solid var(--amber);
  background: rgba(10, 31, 26, 0.74);
}

.page-faq .faq-hero__panel-title {
  margin: 0 0 14px;
  font-size: 19px;
  color: var(--paper);
}

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

.page-faq .faq-hero__panel li {
  position: relative;
  padding-left: 17px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper-2);
}

.page-faq .faq-hero__panel li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
}

.page-faq .faq-hero__panel-foot {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--mist);
}

/* —— 上手三步 —— */
.page-faq .faq-basics {
  background: var(--ink-2);
  border-bottom: var(--faq-rule);
  padding-block: clamp(36px, 6vw, 64px);
}

.page-faq .faq-basics__head {
  max-width: 44em;
}

.page-faq .faq-basics__head h2 {
  margin: 12px 0 10px;
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(23px, 3.4vw, 33px);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.page-faq .faq-basics__head .muted {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .basics-grid {
  list-style: none;
  margin: clamp(26px, 4vw, 42px) 0 0;
  padding: 0;
  display: grid;
  gap: 24px;
}

.page-faq .basics-step {
  position: relative;
}

.page-faq .basics-step__num {
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-faq .basics-step h3 {
  margin: 6px 0 10px;
  font-family: var(--display);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.4;
}

.page-faq .basics-step p {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--paper-2);
}

.page-faq .basics-step__link {
  display: inline-block;
  font-size: 13px;
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--ease), transform var(--ease);
}

.page-faq .basics-step__link:hover {
  border-bottom-color: var(--orange);
  transform: translateX(3px);
}

.page-faq .basics-step__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* —— 主体布局 —— */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(28px, 5vw, 48px);
  padding-top: clamp(36px, 6vw, 62px);
}

.page-faq .faq-side {
  border-top: 2px solid var(--cyan);
  padding-top: 14px;
}

.page-faq .faq-side__title {
  margin: 0 0 12px;
  font-size: 15px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-faq .faq-side__list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-faq .faq-side__list a {
  display: block;
  padding: 7px 0 7px 12px;
  font-size: 14px;
  color: var(--paper-2);
  text-decoration: none;
  border-left: 1px solid var(--line);
  transition: color var(--ease), border-color var(--ease), padding-left var(--ease);
}

.page-faq .faq-side__list a:hover {
  padding-left: 16px;
  color: var(--cyan);
  border-left-color: var(--cyan);
}

.page-faq .faq-side__list a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .faq-side__note {
  margin: 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 12px;
  line-height: 1.75;
  color: var(--mist);
}

/* —— 内容区块 —— */
.page-faq .faq-block + .faq-block {
  margin-top: clamp(48px, 8vw, 88px);
  padding-top: clamp(38px, 6vw, 62px);
  border-top: 1px dashed var(--line);
}

.page-faq .faq-block__head {
  max-width: 46em;
  margin-bottom: 22px;
}

.page-faq .faq-block__head h2 {
  margin: 12px 0 10px;
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(22px, 3.2vw, 31px);
  line-height: 1.32;
  letter-spacing: -0.01em;
}

.page-faq .faq-block__head p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--paper-2);
}

.page-faq .faq-block__foot {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mist);
}

.page-faq .faq-block__foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-deep);
}

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

/* —— 问答手风琴 —— */
.page-faq .qa {
  border-top: 1px solid var(--line);
}

.page-faq .qa:last-of-type {
  border-bottom: 1px solid var(--line);
}

.page-faq .qa__summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 0 16px 2px;
  list-style: none;
  cursor: pointer;
  color: var(--paper);
  transition: transform var(--ease), color var(--ease);
}

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

.page-faq .qa__summary::before {
  content: "+";
  flex: none;
  width: 16px;
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1.8;
  color: var(--cyan);
}

.page-faq .qa[open] .qa__summary::before {
  content: "–";
}

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

.page-faq .qa__summary:hover {
  transform: translateX(4px);
}

.page-faq .qa__summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-faq .qa__q {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.7;
  color: inherit;
}

.page-faq .qa__body {
  display: grid;
  gap: 18px;
  padding: 2px 0 24px 28px;
}

.page-faq .qa__steps {
  counter-reset: qas;
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-faq .qa__steps li {
  position: relative;
  padding-left: 30px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--paper-2);
}

.page-faq .qa__steps li::before {
  counter-increment: qas;
  content: counter(qas, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.18em;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--cyan-deep);
}

.page-faq .qa__check {
  margin: 0;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--channel);
  background: var(--channel-soft);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--paper);
}

.page-faq .qa__check strong {
  color: var(--cyan);
  font-weight: 700;
}

/* —— 图文分栏 —— */
.page-faq .faq-split {
  display: grid;
  gap: clamp(24px, 4vw, 34px);
}

.page-faq .faq-figure {
  margin: 0 0 24px;
  border: 1px solid var(--line);
  background: var(--ink-2);
}

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

.page-faq .faq-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.7;
  color: var(--mist);
}

.page-faq .faq-figure--tall {
  margin: 0;
}

/* —— 客服区 —— */
.page-faq .faq-help {
  margin-top: clamp(48px, 8vw, 88px);
  padding: clamp(24px, 4vw, 40px);
  border: 1px solid var(--line);
  border-top: 2px solid var(--orange);
  background: linear-gradient(145deg, var(--ink-2), var(--ink));
}

.page-faq .faq-help__inner {
  display: grid;
  gap: 26px;
}

.page-faq .faq-help h2 {
  margin: 12px 0 10px;
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(21px, 3vw, 28px);
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.page-faq .faq-help p {
  margin: 0 0 18px;
  max-width: 32em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--paper-2);
}

.page-faq .faq-help__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-help__list li {
  display: grid;
  gap: 3px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--line);
}

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

.page-faq .faq-help__label {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

.page-faq .faq-help__value {
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

/* —— 断点 —— */
@media (min-width: 760px) {
  .page-faq .qa__body {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    gap: 28px;
    align-items: start;
  }

  .page-faq .faq-help__inner {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    align-items: center;
    gap: 36px;
  }
}

@media (min-width: 820px) {
  .page-faq .basics-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }

  .page-faq .basics-step {
    padding: 0 24px;
    border-left: 1px dashed var(--line);
  }

  .page-faq .basics-step:first-child {
    padding-left: 0;
    border-left: 0;
  }

  .page-faq .basics-step:last-child {
    padding-right: 0;
  }
}

@media (min-width: 880px) {
  .page-faq .faq-split {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 0.78fr);
    align-items: start;
    gap: 36px;
  }

  .page-faq .faq-split .faq-figure--tall {
    margin-top: 6px;
  }
}

@media (min-width: 940px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.9fr);
    align-items: end;
    gap: clamp(32px, 5vw, 56px);
  }

  .page-faq .faq-layout {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: clamp(40px, 5vw, 72px);
    align-items: start;
  }

  .page-faq .faq-side {
    position: sticky;
    top: 100px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__summary,
  .page-faq .basics-step__link,
  .page-faq .faq-side__list a {
    transition: none;
  }

  .page-faq .qa__summary:hover,
  .page-faq .basics-step__link:hover {
    transform: none;
  }
}