.page-faq {
  --faq-rail: linear-gradient(180deg, rgba(53, 224, 216, .85), rgba(53, 224, 216, .18) 72%, transparent);
  --faq-card: rgba(20, 27, 71, .68);
  --faq-line: rgba(140, 150, 196, .18);
  --faq-warm: rgba(255, 122, 47, .12);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  overflow: hidden;
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -18% -24% auto -14%;
  height: 130%;
  background:
    radial-gradient(58% 54% at 76% 16%, rgba(53, 224, 216, .16), transparent 62%),
    radial-gradient(46% 48% at 8% 74%, rgba(255, 122, 47, .11), transparent 66%);
  filter: blur(8px);
  pointer-events: none;
  z-index: 0;
}

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

.page-faq .faq-hero-grid {
  display: grid;
  gap: clamp(30px, 5vw, 60px);
  align-items: center;
}

.page-faq .faq-hero-copy h1 {
  margin: 14px 0 0;
  font-size: clamp(2rem, 6.4vw, 3.5rem);
  line-height: 1.14;
  letter-spacing: -0.02em;
}

.page-faq .faq-hero-copy .lead {
  margin-top: 20px;
  max-width: 44ch;
}

.page-faq .faq-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-faq .faq-quickfacts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 38px 0 0;
  padding-top: 24px;
  border-top: 1px solid var(--faq-line);
}

.page-faq .faq-quickfacts > div {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.page-faq .faq-quickfacts dt {
  order: 2;
  margin-top: 6px;
  font-size: .78rem;
  color: var(--slate);
  line-height: 1.5;
}

.page-faq .faq-quickfacts dd {
  order: 1;
  margin: 0;
}

.page-faq .faq-fact-num {
  font-size: clamp(1.4rem, 3.6vw, 2rem);
  color: var(--cyan);
  line-height: 1.1;
}

.page-faq .faq-hero-figure {
  margin: 0;
  transform: translateY(0);
}

/* ---------- 四步流程 ---------- */
.page-faq .faq-steps-layout {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
  margin-top: clamp(32px, 5vw, 56px);
}

.page-faq .faq-step-index {
  list-style: none;
  margin: 0;
  padding: 4px 2px 12px;
  display: flex;
  gap: 10px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

.page-faq .faq-step-index li {
  flex: 0 0 auto;
}

.page-faq .faq-step-index a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-pill);
  background: rgba(20, 27, 71, .62);
  color: var(--white);
  font-size: .9rem;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color .18s var(--ease), background .18s var(--ease), color .18s var(--ease);
}

.page-faq .faq-step-index a .mono {
  color: var(--cyan);
  font-size: .78rem;
}

.page-faq .faq-step-index a:hover,
.page-faq .faq-step-index a:focus-visible {
  border-color: rgba(53, 224, 216, .5);
  background: rgba(53, 224, 216, .1);
}

.page-faq .faq-steps-layout:has(#step-1:target) .faq-step-index li:nth-child(1) a,
.page-faq .faq-steps-layout:has(#step-2:target) .faq-step-index li:nth-child(2) a,
.page-faq .faq-steps-layout:has(#step-3:target) .faq-step-index li:nth-child(3) a,
.page-faq .faq-steps-layout:has(#step-4:target) .faq-step-index li:nth-child(4) a {
  border-color: rgba(53, 224, 216, .62);
  background: rgba(53, 224, 216, .13);
  color: var(--cyan-soft);
}

.page-faq .faq-step-notes {
  display: grid;
  gap: clamp(30px, 5vw, 46px);
}

.page-faq .faq-step-note {
  position: relative;
  padding-left: 62px;
  scroll-margin-top: 120px;
}

.page-faq .faq-step-note::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 46px;
  bottom: -38px;
  width: 2px;
  border-radius: 2px;
  background: var(--faq-rail);
}

.page-faq .faq-step-note:last-child::before {
  display: none;
}

.page-faq .faq-node {
  position: absolute;
  left: 0;
  top: 0;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid rgba(53, 224, 216, .34);
  background: var(--bg-800);
  color: var(--cyan-soft);
  font-size: .82rem;
  transition: background .2s var(--ease), color .2s var(--ease), box-shadow .2s var(--ease);
}

.page-faq .faq-step-note:target .faq-node {
  background: var(--cyan);
  color: var(--bg-900);
  box-shadow: 0 0 0 6px rgba(53, 224, 216, .12), 0 0 14px rgba(53, 224, 216, .45);
}

.page-faq .faq-step-note h3 {
  margin: 8px 0 12px;
  font-size: clamp(1.15rem, 2.6vw, 1.42rem);
  line-height: 1.4;
}

.page-faq .faq-step-note p {
  margin: 0 0 12px;
  color: var(--slate);
  line-height: 1.9;
}

.page-faq .faq-check {
  margin: 0;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: rgba(15, 42, 82, .68);
  border-left: 2px solid var(--cyan);
  color: var(--white);
  font-size: .92rem;
  line-height: 1.8;
}

.page-faq .faq-check .mono {
  display: inline-block;
  margin-right: 8px;
  color: var(--cyan-soft);
  font-size: .76rem;
  letter-spacing: .04em;
}

/* ---------- 新旧对照 ---------- */
.page-faq .faq-compare-figure {
  margin: 0 0 clamp(28px, 4vw, 44px);
}

.page-faq .faq-table-scroll {
  overflow-x: auto;
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-md);
  background: rgba(11, 16, 48, .5);
  -webkit-overflow-scrolling: touch;
}

.page-faq .faq-compare {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: .94rem;
}

.page-faq .faq-compare caption {
  padding: 14px 18px 10px;
  text-align: left;
  font-size: .76rem;
  letter-spacing: .06em;
  color: var(--slate);
}

.page-faq .faq-compare th,
.page-faq .faq-compare td {
  padding: 15px 18px;
  text-align: left;
  vertical-align: top;
  line-height: 1.75;
}

.page-faq .faq-compare thead th {
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .03em;
  color: var(--slate);
  background: rgba(43, 53, 104, .5);
}

.page-faq .faq-compare thead th:first-child {
  color: var(--cyan-soft);
}

.page-faq .faq-compare tbody tr + tr td {
  border-top: 1px solid rgba(140, 150, 196, .12);
}

.page-faq .faq-compare tbody tr:nth-child(odd) td {
  background: rgba(20, 27, 71, .42);
}

.page-faq .faq-compare tbody tr:hover td {
  background: rgba(53, 224, 216, .07);
}

.page-faq .faq-compare .faq-col-new {
  color: var(--white);
}

.page-faq .faq-compare .faq-col-old {
  color: var(--slate);
}

.page-faq .faq-compare .mono {
  margin-right: 6px;
  color: var(--cyan);
  font-size: .82rem;
}

.page-faq .faq-compare td:last-child {
  color: var(--slate);
  font-size: .9rem;
}

.page-faq .faq-compare tr.faq-row-new td {
  background: var(--faq-warm);
}

.page-faq .faq-compare tr.faq-row-new td:first-child {
  box-shadow: inset 3px 0 0 var(--orange);
  color: var(--white);
}

.page-faq .faq-compare .tag--new {
  margin-right: 8px;
}

/* ---------- 四条自查 ---------- */
.page-faq .faq-selfcheck {
  list-style: none;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(16px, 2.4vw, 22px);
}

.page-faq .faq-selfcheck li {
  position: relative;
  padding: 24px 24px 24px 26px;
  border-radius: var(--radius-md);
  background: var(--faq-card);
  box-shadow: var(--glow-idle);
  transition: box-shadow .24s var(--ease), transform .24s var(--ease);
}

.page-faq .faq-selfcheck li:hover {
  box-shadow: var(--glow-active);
  transform: translateY(-3px);
}

.page-faq .faq-selfcheck li::after {
  content: "";
  position: absolute;
  left: 0;
  top: 24px;
  bottom: 24px;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--orange), rgba(255, 122, 47, 0));
}

.page-faq .faq-selfcheck .mono {
  display: block;
  color: var(--orange);
  font-size: .8rem;
  letter-spacing: .06em;
}

.page-faq .faq-selfcheck h3 {
  margin: 10px 0 10px;
  font-size: clamp(1.05rem, 2.2vw, 1.22rem);
}

.page-faq .faq-selfcheck p {
  margin: 0;
  color: var(--slate);
  line-height: 1.85;
  font-size: .94rem;
}

/* ---------- 当季对照读法 ---------- */
.page-faq .faq-read-grid {
  display: grid;
  gap: clamp(26px, 4vw, 44px);
  margin-top: clamp(28px, 4vw, 44px);
}

.page-faq .faq-read-main p {
  margin: 0 0 18px;
  color: var(--slate);
  line-height: 1.95;
}

.page-faq .faq-read-main a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 216, .38);
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-faq .faq-read-main a:hover,
.page-faq .faq-read-main a:focus-visible {
  color: var(--cyan-soft);
  border-bottom-color: var(--cyan-soft);
}

.page-faq .faq-read-side {
  align-self: start;
}

.page-faq .faq-side-title {
  margin: 0 0 16px;
  font-size: 1.08rem;
  color: var(--cyan-soft);
}

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

.page-faq .faq-side-list li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  color: var(--white);
  font-size: .92rem;
  line-height: 1.7;
}

.page-faq .faq-side-list .mono {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid rgba(53, 224, 216, .4);
  color: var(--cyan);
  font-size: .72rem;
  transform: translateY(2px);
}

.page-faq .faq-side-note {
  margin: 18px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--faq-line);
  color: var(--slate);
  font-size: .88rem;
  line-height: 1.8;
}

/* ---------- 折叠问答 ---------- */
.page-faq .faq-qa {
  display: grid;
  gap: 12px;
  margin-top: clamp(26px, 4vw, 38px);
}

.page-faq .faq-item {
  border: 1px solid var(--faq-line);
  border-radius: var(--radius-md);
  background: rgba(20, 27, 71, .62);
  overflow: hidden;
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
}

.page-faq .faq-item[open] {
  border-color: rgba(53, 224, 216, .34);
  box-shadow: var(--glow-idle);
}

.page-faq .faq-item summary {
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 18px 56px 18px 22px;
  font-weight: 600;
  color: var(--white);
  line-height: 1.6;
  transition: color .18s var(--ease);
}

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

.page-faq .faq-item summary::after {
  content: "＋";
  position: absolute;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--cyan);
  font-size: 1.05rem;
  line-height: 1;
}

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

.page-faq .faq-item[open] summary {
  color: var(--cyan-soft);
}

.page-faq .faq-answer {
  padding: 0 22px 20px;
  color: var(--slate);
  line-height: 1.9;
  font-size: .94rem;
}

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

@keyframes faq-answer-in {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-faq .faq-item[open] .faq-answer {
  animation: faq-answer-in .24s var(--ease);
}

/* ---------- 求助 ---------- */
.page-faq .faq-help-panel {
  border-radius: var(--radius-lg);
  padding: clamp(28px, 5vw, 56px);
  background:
    linear-gradient(152deg, rgba(255, 122, 47, .16), rgba(20, 27, 71, .88) 52%, rgba(15, 42, 82, .92));
  box-shadow: var(--glow-idle);
}

.page-faq .faq-help-panel h2 {
  margin: 14px 0 0;
  font-size: clamp(1.5rem, 3.8vw, 2.2rem);
  letter-spacing: -0.01em;
}

.page-faq .faq-help-panel .lead {
  margin-top: 16px;
  max-width: 60ch;
}

.page-faq .faq-mail {
  margin: 26px 0 0;
  padding: 20px 22px;
  border-radius: var(--radius-sm);
  background: rgba(11, 16, 48, .74);
  border: 1px dashed rgba(255, 196, 107, .34);
  color: var(--cyan-soft);
  font-family: var(--font-mono);
  font-size: .84rem;
  line-height: 2.05;
  white-space: pre-wrap;
  word-break: break-word;
}

.page-faq .faq-contact-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-faq .faq-contact-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: baseline;
  color: var(--white);
  font-size: .95rem;
}

.page-faq .faq-contact-list .mono {
  flex: 0 0 auto;
  min-width: 40px;
  color: var(--gold);
  font-size: .76rem;
  letter-spacing: .06em;
}

.page-faq .faq-contact-list a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 216, .35);
}

.page-faq .faq-contact-list a:hover,
.page-faq .faq-contact-list a:focus-visible {
  color: var(--cyan-soft);
}

.page-faq .faq-help-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 680px) {
  .page-faq .faq-selfcheck {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-faq .faq-steps-layout {
    grid-template-columns: 272px minmax(0, 1fr);
    gap: clamp(40px, 6vw, 78px);
  }

  .page-faq .faq-step-index {
    position: sticky;
    top: 112px;
    flex-direction: column;
    gap: 6px;
    padding: 0;
    overflow: visible;
  }

  .page-faq .faq-step-index a {
    white-space: normal;
    width: 100%;
    border-radius: var(--radius-md);
    line-height: 1.5;
  }

  .page-faq .faq-read-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 980px) {
  .page-faq .faq-hero-grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
    align-items: center;
  }

  .page-faq .faq-hero-figure {
    transform: translateY(-18px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-selfcheck li,
  .page-faq .faq-step-index a,
  .page-faq .faq-node {
    transition: none;
  }

  .page-faq .faq-selfcheck li:hover {
    transform: none;
  }

  .page-faq .faq-item[open] .faq-answer {
    animation: none;
  }
}