.page-faq {
  --faq-card: rgba(11, 26, 51, .68);
  --faq-card-hi: rgba(18, 59, 110, .5);
  --faq-gap: clamp(1.1rem, 3vw, 1.85rem);
  --faq-hair: 1px solid rgba(36, 53, 79, .85);
  --faq-gold-line: rgba(200, 145, 42, .38);
  display: block;
  padding-block: clamp(1.25rem, 4vw, 2.5rem) clamp(3rem, 8vw, 6rem);
}

.page-faq .crumb {
  margin-bottom: clamp(1rem, 2.5vw, 1.6rem);
}
.page-faq .crumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: .85rem;
  color: var(--steel);
}
.page-faq .crumb__list li + li::before {
  content: "/";
  margin-right: .5rem;
  color: rgba(130, 150, 174, .6);
}
.page-faq .crumb__list a {
  color: var(--cyan);
  text-decoration: none;
}
.page-faq .crumb__list a:hover,
.page-faq .crumb__list a:focus-visible {
  text-decoration: underline;
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-lg);
  border: var(--faq-hair);
  padding: clamp(1.5rem, 4.2vw, 3rem);
  background:
    radial-gradient(130% 150% at 100% 0%, rgba(53, 230, 213, .16), transparent 58%),
    linear-gradient(155deg, rgba(18, 59, 110, .62), rgba(5, 7, 12, .94) 72%);
}
.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  right: -120px;
  bottom: -160px;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(243, 194, 75, .22), transparent 68%);
  pointer-events: none;
}
.page-faq .faq-hero h1 {
  position: relative;
  z-index: 1;
  margin: .7rem 0 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.9rem, 5vw, 3.35rem);
  line-height: 1.16;
  letter-spacing: .035em;
  color: var(--mist);
}
.page-faq .faq-hero__lead {
  position: relative;
  z-index: 1;
  margin: 1.1rem 0 0;
  max-width: 58ch;
  font-size: clamp(1rem, 1.6vw, 1.09rem);
  line-height: 1.85;
  color: var(--body);
}
.page-faq .faq-hero__links {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}
.page-faq .faq-hero__links a {
  display: inline-block;
  padding: .5rem .95rem;
  border-radius: var(--pill);
  border: 1px solid rgba(53, 230, 213, .42);
  background: rgba(5, 7, 12, .5);
  color: var(--cyan);
  font-size: .85rem;
  font-weight: 500;
  text-decoration: none;
  transition: border-color .2s ease, background .2s ease, transform .2s ease;
}
.page-faq .faq-hero__links a:hover,
.page-faq .faq-hero__links a:focus-visible {
  border-color: var(--gold);
  color: var(--gold);
  transform: translateY(-2px);
}

/* ---------- 主布局 ---------- */
.page-faq .faq-layout {
  display: grid;
  gap: clamp(1.75rem, 4vw, 2.75rem);
  margin-top: clamp(2rem, 5vw, 3.25rem);
}
.page-faq .faq-qa {
  min-width: 0;
}
.page-faq .faq-side {
  min-width: 0;
  grid-row: 1;
  grid-column: 1;
}
.page-faq .faq-qa {
  grid-row: 2;
  grid-column: 1;
}

@media (min-width: 1000px) {
  .page-faq .faq-layout {
    grid-template-columns: minmax(0, 1fr) minmax(300px, 360px);
    align-items: start;
  }
  .page-faq .faq-side {
    grid-column: 2;
    grid-row: 1;
    position: sticky;
    top: 132px;
  }
  .page-faq .faq-qa {
    grid-column: 1;
    grid-row: 1;
  }
}

/* ---------- 工时估算盘 ---------- */
.page-faq .faq-dial {
  border-radius: var(--r-lg);
  border: 1px solid var(--faq-gold-line);
  background:
    radial-gradient(95% 65% at 50% 0%, rgba(53, 230, 213, .12), transparent 62%),
    var(--panel);
  padding: clamp(1.15rem, 3vw, 1.7rem);
  box-shadow: 0 26px 62px -34px rgba(0, 0, 0, .92);
}
.page-faq .faq-dial__eyebrow {
  color: var(--gold);
}
.page-faq .faq-dial__title {
  margin: .5rem 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.05rem, 2.4vw, 1.3rem);
  line-height: 1.45;
  letter-spacing: .02em;
  color: var(--mist);
}
.page-faq .faq-dial__sub {
  margin: .45rem 0 0;
  font-size: .84rem;
  line-height: 1.7;
  color: var(--steel);
}
.page-faq .faq-dial__stage {
  position: relative;
  margin-top: 1.1rem;
}
.page-faq .faq-dial__input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}
.page-faq .faq-dial__face {
  position: relative;
  width: min(100%, 232px);
  margin: 0 auto;
  aspect-ratio: 1 / 1;
}
.page-faq .faq-dial__ring {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.page-faq .faq-dial__ring-track {
  fill: none;
  stroke: rgba(36, 53, 79, .95);
  stroke-width: 1;
}
.page-faq .faq-dial__ring-ticks {
  fill: none;
  stroke: rgba(243, 194, 75, .34);
  stroke-width: 10;
  stroke-dasharray: 1.5 14.5;
}
.page-faq .faq-dial__ring-arc {
  fill: none;
  stroke: rgba(53, 230, 213, .85);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-dasharray: 132 400;
  transform: rotate(-90deg);
  transform-origin: 100px 100px;
}
.page-faq .faq-dial__figures {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
}
.page-faq .faq-dial__fig {
  grid-area: 1 / 1;
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.9rem, 6vw, 2.6rem);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--gold);
  text-align: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity .28s ease;
}
.page-faq .faq-dial__unit {
  display: block;
  margin-top: .3rem;
  font-family: var(--font-body);
  font-size: .74rem;
  font-weight: 500;
  letter-spacing: .18em;
  color: var(--steel);
}
.page-faq .faq-dial__tabs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .45rem;
  margin-top: 1.1rem;
}
.page-faq .faq-dial__tab {
  display: block;
  padding: .52rem .3rem;
  border-radius: var(--pill);
  border: 1px solid rgba(36, 53, 79, .95);
  text-align: center;
  font-size: .8rem;
  color: var(--steel);
  cursor: pointer;
  user-select: none;
  transition: border-color .2s ease, color .2s ease, background .2s ease;
}
.page-faq .faq-dial__tab:hover {
  border-color: var(--faq-gold-line);
  color: var(--mist);
}
.page-faq .faq-dial__notes {
  display: grid;
  margin-top: .95rem;
  min-height: 4.4rem;
}
.page-faq .faq-dial__note {
  grid-area: 1 / 1;
  margin: 0;
  font-size: .84rem;
  line-height: 1.75;
  color: var(--body);
  opacity: 0;
  visibility: hidden;
  transition: opacity .28s ease;
}
.page-faq .faq-dial__foot {
  margin: 1rem 0 0;
  padding-top: .85rem;
  border-top: var(--faq-hair);
  font-size: .76rem;
  line-height: 1.7;
  color: var(--steel);
}

.page-faq #faq-space-1:checked ~ .faq-dial__face .faq-dial__fig--1,
.page-faq #faq-space-2:checked ~ .faq-dial__face .faq-dial__fig--2,
.page-faq #faq-space-3:checked ~ .faq-dial__face .faq-dial__fig--3,
.page-faq #faq-space-4:checked ~ .faq-dial__face .faq-dial__fig--4 {
  opacity: 1;
  visibility: visible;
}
.page-faq #faq-space-1:checked ~ .faq-dial__notes .faq-dial__note--1,
.page-faq #faq-space-2:checked ~ .faq-dial__notes .faq-dial__note--2,
.page-faq #faq-space-3:checked ~ .faq-dial__notes .faq-dial__note--3,
.page-faq #faq-space-4:checked ~ .faq-dial__notes .faq-dial__note--4 {
  opacity: 1;
  visibility: visible;
}
.page-faq #faq-space-1:checked ~ .faq-dial__tabs .faq-dial__tab--1,
.page-faq #faq-space-2:checked ~ .faq-dial__tabs .faq-dial__tab--2,
.page-faq #faq-space-3:checked ~ .faq-dial__tabs .faq-dial__tab--3,
.page-faq #faq-space-4:checked ~ .faq-dial__tabs .faq-dial__tab--4 {
  border-color: var(--gold);
  background: rgba(243, 194, 75, .13);
  color: var(--gold);
}
.page-faq #faq-space-1:focus-visible ~ .faq-dial__tabs .faq-dial__tab--1,
.page-faq #faq-space-2:focus-visible ~ .faq-dial__tabs .faq-dial__tab--2,
.page-faq #faq-space-3:focus-visible ~ .faq-dial__tabs .faq-dial__tab--3,
.page-faq #faq-space-4:focus-visible ~ .faq-dial__tabs .faq-dial__tab--4 {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 主题与问答 ---------- */
.page-faq .faq-topic {
  margin-top: clamp(1.9rem, 4.5vw, 3rem);
  scroll-margin-top: 130px;
}
.page-faq .faq-topic:first-child {
  margin-top: 0;
}
.page-faq .faq-topic__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: .2rem .95rem;
  align-items: start;
  padding-bottom: .9rem;
  border-bottom: var(--faq-hair);
}
.page-faq .faq-topic__num {
  grid-column: 1;
  grid-row: 1 / span 2;
  font-size: clamp(2.1rem, 6.5vw, 3.2rem);
  font-weight: 800;
  line-height: .95;
  color: var(--gold);
  opacity: .88;
}
.page-faq .faq-topic__title {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.2rem, 3vw, 1.6rem);
  line-height: 1.35;
  letter-spacing: .025em;
  color: var(--mist);
}
.page-faq .faq-topic__lead {
  grid-column: 2;
  grid-row: 2;
  margin: .35rem 0 0;
  font-size: .88rem;
  line-height: 1.75;
  color: var(--steel);
}
.page-faq .faq-topic__items {
  margin-top: .3rem;
}
.page-faq .qa {
  border-bottom: var(--faq-hair);
}
.page-faq .qa__q {
  position: relative;
  display: block;
  padding: 1.05rem 2.6rem 1.05rem .9rem;
  border-left: 2px solid transparent;
  font-size: .98rem;
  font-weight: 600;
  line-height: 1.65;
  color: var(--mist);
  cursor: pointer;
  list-style: none;
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}
.page-faq .qa__q::-webkit-details-marker {
  display: none;
}
.page-faq .qa__q::marker {
  content: "";
}
.page-faq .qa__q::after {
  content: "";
  position: absolute;
  right: .9rem;
  top: 50%;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: translateY(-70%) rotate(45deg);
  transition: transform .25s ease, border-color .2s ease;
}
.page-faq .qa__q:hover {
  color: var(--gold);
  background: rgba(18, 59, 110, .35);
}
.page-faq .qa__q:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.page-faq .qa[open] .qa__q {
  color: var(--gold);
  border-left-color: var(--gold);
}
.page-faq .qa[open] .qa__q::after {
  transform: translateY(-30%) rotate(-135deg);
  border-right-color: var(--gold);
  border-bottom-color: var(--gold);
}
.page-faq .qa__a {
  padding: .15rem 1rem 1.35rem 1.5rem;
  margin-left: .9rem;
  border-left: 2px solid rgba(53, 230, 213, .35);
  animation: faq-open .28s ease both;
}
.page-faq .qa__a p {
  margin: 0;
  font-size: .93rem;
  line-height: 1.9;
  color: var(--body);
}
@keyframes faq-open {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 图 ---------- */
.page-faq .faq-figure {
  margin: 1.35rem 0 0;
  border-radius: var(--r-md);
  overflow: hidden;
  border: var(--faq-hair);
  background: linear-gradient(160deg, rgba(18, 59, 110, .5), rgba(5, 7, 12, .85));
}
.page-faq .faq-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  opacity: .92;
}
.page-faq .faq-figure--wide img {
  aspect-ratio: 9 / 7;
}
.page-faq .faq-figure__cap {
  padding: .65rem 1rem;
  border-top: var(--faq-hair);
  font-size: .77rem;
  letter-spacing: .04em;
  color: var(--steel);
}

/* ---------- 收尾 ---------- */
.page-faq .faq-next {
  margin-top: clamp(2.2rem, 5vw, 3.4rem);
  padding: clamp(1.4rem, 4vw, 2.4rem);
  border-radius: var(--r-lg);
  border: 1px solid var(--faq-gold-line);
  background:
    radial-gradient(110% 130% at 0% 100%, rgba(53, 230, 213, .14), transparent 60%),
    linear-gradient(150deg, rgba(11, 26, 51, .9), rgba(5, 7, 12, .95));
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}
.page-faq .faq-next__title {
  margin: .55rem 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.25rem, 3.2vw, 1.75rem);
  line-height: 1.4;
  letter-spacing: .025em;
  color: var(--mist);
}
.page-faq .faq-next__text {
  margin: .7rem 0 0;
  max-width: 56ch;
  font-size: .93rem;
  line-height: 1.85;
  color: var(--body);
}
.page-faq .faq-next__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.4rem;
}

@media (max-width: 600px) {
  .page-faq .faq-hero__links {
    gap: .5rem;
  }
  .page-faq .faq-hero__links a {
    font-size: .79rem;
    padding: .45rem .8rem;
  }
  .page-faq .faq-topic__num {
    font-size: 2rem;
  }
  .page-faq .faq-topic__lead {
    font-size: .84rem;
  }
  .page-faq .qa__q {
    font-size: .92rem;
    padding-right: 2.2rem;
  }
  .page-faq .qa__a {
    padding-left: 1rem;
    margin-left: .6rem;
  }
  .page-faq .faq-next__actions .btn {
    flex: 1 1 auto;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .qa__a {
    animation: none;
  }
  .page-faq .qa__q::after,
  .page-faq .faq-dial__fig,
  .page-faq .faq-dial__note,
  .page-faq .faq-dial__tab,
  .page-faq .faq-hero__links a {
    transition: none;
  }
  .page-faq .faq-hero__links a:hover {
    transform: none;
  }
}
</main>