.page-faq {
  background: var(--ink);
  color: var(--paper);
  --faq-gap: clamp(24px, 4vw, 44px);
}

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

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(28px, 4vw, 48px) clamp(48px, 7vw, 92px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -30% -10% auto -10%;
  height: 78%;
  background:
    radial-gradient(58% 100% at 74% 0%, rgba(200, 16, 46, 0.3), transparent 68%),
    radial-gradient(46% 92% at 12% 6%, rgba(45, 156, 219, 0.2), transparent 70%);
  pointer-events: none;
}

.page-faq .faq-hero .shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-hero .crumbs {
  font-size: 0.82rem;
  color: var(--grey);
}

.page-faq .faq-hero .crumbs a {
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--line-dark);
}

.page-faq .faq-hero .crumbs a:hover {
  color: var(--red-bright);
  border-color: var(--red-bright);
}

.page-faq .faq-hero__grid {
  display: grid;
  gap: var(--faq-gap);
  margin-top: clamp(28px, 4vw, 46px);
  align-items: center;
}

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

.page-faq .faq-hero h1 {
  margin: 0.3em 0 0.5em;
  font-family: var(--font-display);
  font-size: clamp(2rem, 7vw, 3.6rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--paper);
  text-wrap: balance;
}

.page-faq .faq-hero__lead {
  max-width: 34em;
  font-size: clamp(1rem, 1.5vw, 1.1rem);
  line-height: 1.78;
  color: rgba(242, 237, 228, 0.78);
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-faq .faq-hero__figure {
  margin: 0;
}

.page-faq .faq-hero__figure img {
  width: 100%;
  object-fit: cover;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-2);
}

/* ---------- 问题分类 ---------- */

.page-faq .faq-body {
  color: var(--ink);
}

.page-faq .faq-body__head {
  max-width: 720px;
  margin-bottom: clamp(26px, 4vw, 46px);
}

.page-faq .faq-body__head .eyebrow {
  color: var(--red);
}

.page-faq .faq-body h2 {
  margin: 0.3em 0 0.55em;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 4vw, 2.4rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-faq .faq-body__head p {
  margin: 0;
  line-height: 1.8;
  color: rgba(11, 13, 16, 0.72);
}

.page-faq .faq-tabs {
  display: grid;
  gap: 22px;
}

.page-faq .faq-tabs .tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-faq .faq-tabs .tabs__tab {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex: 0 0 auto;
  padding: 12px 16px;
  border: 1px solid var(--line-light);
  border-radius: var(--r-md);
  background: var(--paper-2);
  color: var(--ink);
  font: inherit;
  font-size: 0.94rem;
  text-align: left;
  cursor: pointer;
  transition: background-color 200ms ease, color 200ms ease, border-color 200ms ease;
}

.page-faq .faq-tabs .tabs__tab .mono {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--grey);
}

.page-faq .faq-tabs .tabs__tab:hover {
  border-color: var(--red);
  color: var(--red);
}

.page-faq .faq-tabs .tabs__tab:hover .mono {
  color: var(--red);
}

.page-faq .faq-tabs .tabs__tab[aria-selected="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
  box-shadow: inset 4px 0 0 var(--red);
}

.page-faq .faq-tabs .tabs__tab[aria-selected="true"] .mono {
  color: var(--amber);
}

.page-faq .faq-tabs .tabs__tab:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.page-faq .faq-tabs .tabs__panel {
  min-width: 0;
  padding-top: 4px;
}

/* ---------- 问答条目 ---------- */

.page-faq .faq-list {
  display: grid;
  gap: 10px;
}

.page-faq .faq-item {
  border: 1px solid var(--line-light);
  border-radius: var(--r-md);
  background: var(--paper-2);
  overflow: hidden;
  transition: border-color 200ms ease;
}

.page-faq .faq-item[open] {
  border-color: rgba(200, 16, 46, 0.42);
}

.page-faq .faq-item > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 15px 18px;
  list-style: none;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--ink);
}

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

.page-faq .faq-item > summary::after {
  content: "+";
  margin-left: auto;
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 1.2rem;
  line-height: 1;
  color: var(--red);
  transition: transform 220ms ease;
}

.page-faq .faq-item[open] > summary::after {
  content: "−";
}

.page-faq .faq-item > summary:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: -3px;
}

.page-faq .faq-item__num {
  flex: 0 0 auto;
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--amber);
  padding-top: 0.32em;
}

.page-faq .faq-item__q {
  flex: 1 1 auto;
}

.page-faq .faq-item__a {
  padding: 0 18px 18px 18px;
  font-size: 0.94rem;
  line-height: 1.78;
  color: rgba(11, 13, 16, 0.76);
}

.page-faq .faq-item__a p {
  margin: 0 0 0.7em;
}

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

.page-faq .faq-item__a a {
  color: var(--red);
  text-decoration: none;
  border-bottom: 1px solid rgba(200, 16, 46, 0.4);
}

.page-faq .faq-item__a a:hover {
  color: var(--red-bright);
  border-color: var(--red-bright);
}

/* ---------- 步骤编号 ---------- */

.page-faq .faq-steps {
  margin: 0.4em 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-faq .faq-steps li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: baseline;
}

.page-faq .faq-steps .mono {
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  color: var(--red);
}

/* ---------- 面板配图 ---------- */

.page-faq .faq-figure {
  margin: clamp(20px, 3vw, 30px) 0 0;
}

.page-faq .faq-figure img {
  width: 100%;
  object-fit: cover;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-1);
}

.page-faq .faq-figure .media__caption {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.04em;
  color: var(--grey);
}

/* ---------- 还没解决 ---------- */

.page-faq .faq-help {
  position: relative;
  overflow: hidden;
}

.page-faq .faq-help::after {
  content: "";
  position: absolute;
  inset: auto -12% -40% auto;
  width: 60%;
  height: 90%;
  background: radial-gradient(50% 60% at 70% 80%, rgba(74, 222, 128, 0.14), transparent 70%);
  pointer-events: none;
}

.page-faq .faq-help .shell {
  position: relative;
  z-index: 1;
}

.page-faq .faq-help__grid {
  display: grid;
  gap: var(--faq-gap);
  align-items: start;
}

.page-faq .faq-help .eyebrow {
  color: var(--green);
}

.page-faq .faq-help h2 {
  margin: 0.3em 0 0.55em;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 4vw, 2.4rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-faq .faq-help__copy p {
  max-width: 34em;
  line-height: 1.78;
  color: rgba(242, 237, 228, 0.74);
}

.page-faq .faq-help__copy .btn {
  margin-top: clamp(18px, 2.6vw, 26px);
}

.page-faq .faq-help__plate {
  background: var(--ink-2);
  border: 1px solid var(--line-dark);
  border-radius: var(--r-lg);
  padding: 6px 20px;
}

.page-faq .faq-help__plate .info-plate__row {
  display: grid;
  gap: 5px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line-dark);
}

.page-faq .faq-help__plate .info-plate__row:last-child {
  border-bottom: 0;
}

.page-faq .faq-help__plate .info-plate__key {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--grey);
}

.page-faq .faq-help__plate .info-plate__val {
  color: var(--paper);
  font-size: 0.96rem;
  line-height: 1.6;
  word-break: break-word;
}

.page-faq .faq-help__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 12px;
  margin-top: clamp(30px, 5vw, 54px);
  padding-top: 20px;
  border-top: 1px solid var(--line-dark);
}

.page-faq .faq-help__links a {
  padding: 8px 15px;
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--paper);
  text-decoration: none;
  transition: border-color 200ms ease, color 200ms ease;
}

.page-faq .faq-help__links a:hover {
  border-color: var(--red-bright);
  color: var(--red-bright);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-faq .faq-item__a {
    padding-left: 52px;
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 64px);
  }

  .page-faq .faq-tabs {
    grid-template-columns: minmax(0, 236px) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 52px);
    align-items: start;
  }

  .page-faq .faq-tabs .tabs__list {
    grid-column: 1;
    grid-row: 1 / span 24;
    flex-direction: column;
  }

  .page-faq .faq-tabs .tabs__tab {
    width: 100%;
  }

  .page-faq .faq-tabs .tabs__panel {
    grid-column: 2;
  }

  .page-faq .faq-help__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 420px);
    gap: clamp(32px, 5vw, 68px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-tabs .tabs__tab,
  .page-faq .faq-item,
  .page-faq .faq-item > summary::after,
  .page-faq .faq-help__links a {
    transition: none;
  }
}