.page-faq {
  --faq-line: rgba(47, 91, 140, .42);
  --faq-card: rgba(18, 41, 74, .6);
  --faq-card-hi: rgba(28, 58, 99, .58);
  padding-bottom: clamp(3rem, 7vw, 5.5rem);
}

/* ---------- 首屏框景 ---------- */
.page-faq .faq-hero {
  margin-top: clamp(.9rem, 3vw, 1.8rem);
}

.page-faq .faq-hero__frame {
  position: relative;
  padding: clamp(1.25rem, 4.5vw, 2.75rem);
  border: 1px solid var(--night-2);
  border-radius: var(--r-lg);
  background:
    radial-gradient(120% 130% at 92% -25%, rgba(242, 160, 61, .15), transparent 58%),
    linear-gradient(180deg, rgba(18, 41, 74, .9), rgba(11, 27, 51, .96));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.page-faq .faq-hero__frame::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14%;
  bottom: 14%;
  width: 3px;
  border-radius: 2px;
  background: linear-gradient(180deg, transparent, var(--amber) 18%, var(--amber) 82%, transparent);
}

.page-faq .faq-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.4rem);
}

.page-faq .faq-hero__title {
  margin: .45rem 0 0;
  font-family: var(--font-narrow);
  font-weight: 900;
  font-size: clamp(1.85rem, 6vw, 3rem);
  line-height: 1.14;
  letter-spacing: .01em;
  color: var(--snow);
}

.page-faq .faq-hero__intro {
  margin: 1rem 0 0;
  max-width: 46ch;
  color: var(--muted);
  font-size: .95rem;
  line-height: 1.85;
}

.page-faq .faq-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .65rem;
  margin-top: 1.5rem;
}

.page-faq .faq-hero__panel {
  padding: 1.1rem;
  border: 1px solid var(--faq-line);
  border-radius: var(--r-lg);
  background: rgba(11, 27, 51, .55);
}

.page-faq .faq-hero__panel-title {
  margin: 0 0 .8rem;
  font-size: .76rem;
  font-weight: 500;
  letter-spacing: .16em;
  color: var(--muted);
}

.page-faq .faq-quick {
  display: grid;
  gap: .5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-quick__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: .85rem;
  row-gap: .15rem;
  padding: .8rem .9rem;
  border: 1px solid transparent;
  border-radius: var(--r-md);
  background: var(--faq-card);
  transition: border-color .2s ease, background .2s ease;
}

.page-faq .faq-quick__item:hover,
.page-faq .faq-quick__item:focus-within {
  border-color: var(--mid-blue);
  background: var(--faq-card-hi);
}

.page-faq .faq-quick__num {
  grid-row: 1 / span 2;
  align-self: center;
  font-family: var(--font-mono);
  font-size: .95rem;
  font-weight: 600;
  letter-spacing: .05em;
  color: var(--amber);
}

.page-faq .faq-quick__link {
  color: var(--snow);
  font-size: .93rem;
  font-weight: 600;
  line-height: 1.5;
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, color .2s ease;
}

.page-faq .faq-quick__link:hover {
  color: var(--amber-soft);
  border-bottom-color: var(--amber);
}

.page-faq .faq-quick__hint {
  font-size: .79rem;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 折叠操作卡 ---------- */
.page-faq .faq-blocks {
  display: grid;
  gap: clamp(1.75rem, 5vw, 3rem);
  margin-top: clamp(2.25rem, 6vw, 4rem);
}

.page-faq .faq-block {
  display: grid;
  gap: 1rem;
  padding-top: clamp(1.25rem, 3.5vw, 1.9rem);
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-block__index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 4vw, 2rem);
  font-weight: 600;
  line-height: 1;
  letter-spacing: .08em;
  color: var(--amber);
}

.page-faq .faq-block__body {
  display: grid;
  gap: 1.1rem;
  align-content: start;
}

.page-faq .faq-block__head {
  display: grid;
  gap: .55rem;
}

.page-faq .faq-block__title {
  margin: 0;
  font-family: var(--font-narrow);
  font-weight: 800;
  font-size: clamp(1.3rem, 3.6vw, 1.9rem);
  line-height: 1.25;
  color: var(--snow);
}

.page-faq .faq-block__note {
  margin: 0;
  font-size: .9rem;
  line-height: 1.85;
  color: var(--muted);
}

/* 步骤 */
.page-faq .faq-steps {
  display: grid;
  gap: .7rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: .85rem;
  padding: 1rem 1.05rem;
  border: 1px solid var(--night-2);
  border-radius: var(--r-md);
  background: var(--faq-card);
}

.page-faq .faq-step__num {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: .06em;
  color: var(--amber);
}

.page-faq .faq-step__title {
  margin: 0;
  font-size: .97rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--snow);
}

.page-faq .faq-step__text p {
  margin: .4rem 0 0;
  font-size: .87rem;
  line-height: 1.8;
  color: var(--muted);
}

/* 标签三类 */
.page-faq .faq-tags {
  display: grid;
  gap: .8rem;
}

.page-faq .faq-tag-card {
  display: grid;
  gap: .6rem;
  align-content: start;
  padding: 1.1rem;
  border: 1px solid var(--night-2);
  border-radius: var(--r-md);
  background: linear-gradient(180deg, rgba(28, 58, 99, .55), rgba(18, 41, 74, .72));
}

.page-faq .faq-tag-card__sample {
  margin: 0;
}

.page-faq .faq-tag-card__title {
  margin: 0;
  font-size: .98rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--snow);
}

.page-faq .faq-tag-card p {
  margin: 0;
  font-size: .86rem;
  line-height: 1.8;
  color: var(--muted);
}

/* 图文区 */
.page-faq .faq-media {
  margin: 0;
  border: 1px solid var(--night-2);
  border-radius: var(--r-md);
  background: var(--night-1);
  overflow: hidden;
}

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

/* 说明条目 */
.page-faq .faq-notes {
  display: grid;
  gap: .7rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-note {
  padding: 1rem 1.05rem;
  border: 1px solid transparent;
  border-left: 3px solid var(--mid-blue);
  border-radius: var(--r-md);
  background: rgba(18, 41, 74, .5);
}

.page-faq .faq-note__title {
  margin: 0;
  font-size: .95rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--snow);
}

.page-faq .faq-note p {
  margin: .4rem 0 0;
  font-size: .87rem;
  line-height: 1.8;
  color: var(--muted);
}

/* 可展开问答 */
.page-faq .faq-qa {
  border: 1px solid var(--night-2);
  border-radius: var(--r-md);
  background: rgba(18, 41, 74, .55);
  overflow: hidden;
  transition: border-color .2s ease, background .2s ease;
}

.page-faq .faq-qa[data-open] {
  border-color: rgba(242, 160, 61, .45);
  background: rgba(28, 58, 99, .5);
}

.page-faq .faq-qa__trigger {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.05rem;
  border: 0;
  background: transparent;
  color: var(--snow);
  font-family: var(--font-sans);
  font-size: .94rem;
  font-weight: 600;
  line-height: 1.55;
  text-align: left;
  cursor: pointer;
}

.page-faq .faq-qa__trigger:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: -2px;
}

.page-faq .faq-qa__sign {
  position: relative;
  flex: none;
  width: 18px;
  height: 18px;
  border: 1px solid var(--mid-blue);
  border-radius: 50%;
  transition: border-color .2s ease;
}

.page-faq .faq-qa[data-open] .faq-qa__sign {
  border-color: var(--amber);
}

.page-faq .faq-qa__sign::before,
.page-faq .faq-qa__sign::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  background: var(--amber);
  transform: translate(-50%, -50%);
  transition: transform .25s ease, opacity .25s ease;
}

.page-faq .faq-qa__sign::before {
  width: 8px;
  height: 1.5px;
}

.page-faq .faq-qa__sign::after {
  width: 1.5px;
  height: 8px;
}

.page-faq .faq-qa[data-open] .faq-qa__sign::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-faq .faq-qa__panel {
  padding: 0 1.05rem 1.05rem;
  font-size: .87rem;
  line-height: 1.85;
  color: var(--muted);
}

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

/* 联系条 */
.page-faq .faq-contact {
  display: grid;
  gap: .9rem;
  padding: 1.1rem 1.15rem;
  border: 1px solid rgba(242, 160, 61, .35);
  border-radius: var(--r-md);
  background: linear-gradient(180deg, rgba(242, 160, 61, .12), rgba(18, 41, 74, .6));
}

.page-faq .faq-contact__text {
  margin: 0;
  font-size: .9rem;
  line-height: 1.8;
  color: var(--snow);
}

.page-faq .faq-contact .btn {
  justify-self: start;
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-faq .faq-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 1.5rem;
  }
}

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

@media (min-width: 860px) {
  .page-faq .faq-block {
    grid-template-columns: 72px minmax(0, 1fr);
    column-gap: clamp(1.25rem, 3vw, 2.25rem);
  }
}

@media (min-width: 900px) {
  .page-faq .faq-hero__inner {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .88fr);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-faq .faq-hero__intro {
    font-size: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-quick__item,
  .page-faq .faq-quick__link,
  .page-faq .faq-qa,
  .page-faq .faq-qa__sign,
  .page-faq .faq-qa__sign::before,
  .page-faq .faq-qa__sign::after {
    transition: none;
  }
}