.page-faq {
  --faq-gap: clamp(18px, 2.6vw, 32px);
  --faq-line-gap: clamp(16px, 2.2vw, 24px);
}

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

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding: 26px 0 clamp(48px, 7vw, 84px);
}

.page-faq .faq-hero::before {
  content: "";
  position: absolute;
  inset: -80px 0 40% 0;
  background:
    radial-gradient(58% 60% at 16% 0%, rgba(124, 77, 255, .20), transparent 68%),
    radial-gradient(52% 58% at 88% 8%, rgba(24, 224, 208, .14), transparent 70%);
  pointer-events: none;
  z-index: -1;
}

.page-faq .faq-hero h1 {
  margin: 14px 0 20px;
  max-width: 20em;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(30px, 5vw, 56px);
  line-height: 1.16;
  letter-spacing: -.02em;
  color: var(--fog);
  text-shadow: 0 0 30px rgba(24, 224, 208, .18);
}

.page-faq .faq-hero-lead {
  max-width: 62ch;
  margin: 0 0 14px;
  color: var(--steel);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.95;
}

.page-faq .faq-hero-lead:last-of-type {
  margin-bottom: 34px;
}

.page-faq .faq-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0 0 clamp(24px, 3.4vw, 38px);
  padding: 0;
  list-style: none;
}

.page-faq .faq-strip-item {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 7px;
  overflow: hidden;
  padding: 14px 14px 16px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-m);
  background: linear-gradient(160deg, rgba(16, 42, 71, .88), rgba(7, 20, 38, .84));
  transition: border-color .28s var(--ease), transform .28s var(--ease);
}

.page-faq .faq-strip-item::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--cyan), var(--violet));
  opacity: .3;
  transition: opacity .28s var(--ease);
}

.page-faq .faq-strip-item:hover {
  border-color: var(--line);
  transform: translateY(-3px);
}

.page-faq .faq-strip-idx {
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--steel);
}

.page-faq .faq-strip-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--fog);
}

.page-faq .faq-strip-item.is-key {
  border-color: var(--cyan);
  background: linear-gradient(160deg, rgba(24, 224, 208, .17), rgba(7, 20, 38, .92));
  box-shadow: 0 0 0 1px rgba(24, 224, 208, .34), 0 24px 54px -32px rgba(24, 224, 208, .95);
  animation: faqKeyPulse 2.6s var(--ease) 1;
}

.page-faq .faq-strip-item.is-key::before {
  opacity: 1;
  background: var(--cyan);
}

.page-faq .faq-strip-item.is-key .faq-strip-idx {
  color: var(--cyan);
}

@keyframes faqKeyPulse {
  0% { box-shadow: 0 0 0 1px rgba(24, 224, 208, .34), 0 0 0 0 rgba(24, 224, 208, .55); }
  60% { box-shadow: 0 0 0 1px rgba(24, 224, 208, .34), 0 0 0 14px rgba(24, 224, 208, 0); }
  100% { box-shadow: 0 0 0 1px rgba(24, 224, 208, .34), 0 24px 54px -32px rgba(24, 224, 208, .95); }
}

.page-faq .faq-hero-figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  background: var(--ink-2);
}

.page-faq .faq-hero-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(120% 82% at 10% 0%, rgba(124, 77, 255, .30), transparent 62%),
    radial-gradient(96% 74% at 92% 100%, rgba(24, 224, 208, .22), transparent 64%);
}

.page-faq .faq-hero-figure img {
  display: block;
  width: 100%;
  aspect-ratio: 7 / 4;
  object-fit: cover;
}

/* ---------- 帮助索引总览 ---------- */

.page-faq .faq-overview-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
}

.page-faq .faq-ov-card {
  position: relative;
  padding: 22px 22px 24px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-m);
  background: linear-gradient(168deg, rgba(16, 42, 71, .74), rgba(11, 31, 56, .48));
  transition: border-color .3s var(--ease), transform .3s var(--ease);
}

.page-faq .faq-ov-card:hover {
  border-color: var(--line);
  transform: translateY(-4px);
}

.page-faq .faq-ov-idx {
  display: block;
  margin-bottom: 12px;
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--steel);
}

.page-faq .faq-ov-title {
  margin: 0 0 10px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--fog);
}

.page-faq .faq-ov-desc {
  margin: 0;
  color: var(--steel);
  font-size: 15px;
  line-height: 1.9;
}

.page-faq .faq-ov-card.is-key {
  border-color: var(--cyan);
  background: linear-gradient(168deg, rgba(24, 224, 208, .13), rgba(16, 42, 71, .7));
}

.page-faq .faq-ov-card.is-key .faq-ov-idx,
.page-faq .faq-ov-card.is-key .faq-ov-title {
  color: var(--cyan);
}

/* ---------- 规则三步 ---------- */

.page-faq .faq-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--faq-gap);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-step {
  position: relative;
  padding: 26px 22px 26px;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-l);
  background: linear-gradient(172deg, rgba(16, 42, 71, .7), rgba(7, 20, 38, .78));
  transition: border-color .3s var(--ease), transform .3s var(--ease);
}

.page-faq .faq-step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 22px;
  right: 40%;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
}

.page-faq .faq-step:hover {
  border-color: var(--line);
  transform: translateY(-4px);
}

.page-faq .faq-step-num {
  display: block;
  margin-bottom: 14px;
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--amber);
}

.page-faq .faq-step-title {
  margin: 0 0 10px;
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--fog);
}

.page-faq .faq-step-text {
  margin: 0;
  color: var(--steel);
  font-size: 15px;
  line-height: 1.92;
}

.page-faq .faq-rules-hint {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 16px 20px;
  border-left: 3px solid var(--cyan);
  border-radius: 0 var(--r-s) var(--r-s) 0;
  background: rgba(24, 224, 208, .07);
  color: var(--fog);
  font-size: 15px;
  line-height: 1.85;
}

/* ---------- 三条排查线 ---------- */

.page-faq .faq-filter-bar {
  margin: 0 0 clamp(22px, 3vw, 32px);
}

.page-faq .faq-lines-figure {
  position: relative;
  margin: 0 0 clamp(26px, 4vw, 42px);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  background: var(--ink-2);
}

.page-faq .faq-lines-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(115deg, rgba(124, 77, 255, .22), transparent 52%, rgba(24, 224, 208, .18));
}

.page-faq .faq-lines-figure img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 2;
  max-height: 340px;
  object-fit: cover;
}

.page-faq .faq-line {
  margin-bottom: var(--faq-line-gap);
  padding: clamp(20px, 2.6vw, 30px);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-l);
  background: linear-gradient(170deg, rgba(16, 42, 71, .62), rgba(7, 20, 38, .74));
}

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

.page-faq .faq-line-head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-bottom: 16px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-line-head-main {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
}

.page-faq .faq-line-idx {
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--cyan);
}

.page-faq .faq-line-title {
  margin: 0;
  font-size: clamp(20px, 2.4vw, 25px);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--fog);
}

.page-faq .faq-line-note {
  margin: 0;
  color: var(--steel);
  font-size: 13px;
  line-height: 1.8;
}

.page-faq .faq-qa {
  margin-bottom: 10px;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-s);
  background: rgba(7, 20, 38, .55);
  transition: border-color .28s var(--ease), background .28s var(--ease);
}

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

.page-faq .faq-qa:hover {
  border-color: var(--line);
}

.page-faq .faq-qa[open] {
  border-color: var(--line);
  background: rgba(16, 42, 71, .48);
}

.page-faq .faq-qa-q {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  color: var(--fog);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.72;
  transition: color .24s var(--ease);
}

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

.page-faq .faq-qa-q::after {
  content: "";
  flex: 0 0 auto;
  margin-left: auto;
  width: 18px;
  height: 18px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background:
    linear-gradient(var(--cyan), var(--cyan)) center / 8px 1.5px no-repeat,
    linear-gradient(var(--cyan), var(--cyan)) center / 1.5px 8px no-repeat;
  transition: transform .3s var(--ease), background-color .3s var(--ease);
}

.page-faq .faq-qa-q:hover {
  color: var(--cyan);
}

.page-faq .faq-qa[open] .faq-qa-q::after {
  transform: rotate(135deg);
  background-color: rgba(24, 224, 208, .16);
}

.page-faq .faq-qa-a {
  padding: 14px 18px 18px;
  border-top: 1px solid var(--line-soft);
  animation: faqFadeIn .28s var(--ease);
}

.page-faq .faq-qa-a p {
  max-width: 66ch;
  margin: 0;
  color: var(--steel);
  font-size: 15px;
  line-height: 1.95;
}

@keyframes faqFadeIn {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: none; }
}

/* ---------- 咨询准备 ---------- */

.page-faq .faq-consult-main .section-desc {
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-faq .faq-check-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-check-item {
  position: relative;
  padding: 18px 0 18px 54px;
  border-top: 1px solid var(--line-soft);
}

.page-faq .faq-check-item:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-check-idx {
  position: absolute;
  top: 20px;
  left: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(24, 224, 208, .08);
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: .04em;
}

.page-faq .faq-check-title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--fog);
}

.page-faq .faq-check-text {
  max-width: 60ch;
  margin: 0;
  color: var(--steel);
  font-size: 15px;
  line-height: 1.9;
}

.page-faq .faq-consult-links {
  margin: clamp(22px, 3vw, 30px) 0 0;
  color: var(--steel);
  font-size: 15px;
  line-height: 1.9;
}

.page-faq .faq-consult-links a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-faq .faq-contact-card {
  padding: clamp(22px, 2.6vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  background: linear-gradient(168deg, rgba(16, 42, 71, .92), rgba(7, 20, 38, .9));
  box-shadow: var(--shadow-neon);
}

.page-faq .faq-contact-title {
  margin: 0 0 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--fog);
}

.page-faq .faq-contact-note {
  margin: 18px 0 20px;
  color: var(--steel);
  font-size: 14px;
  line-height: 1.85;
}

.page-faq .faq-contact-card .contact-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-faq .faq-contact-card .contact-key {
  display: block;
  margin-bottom: 4px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--steel);
}

.page-faq .faq-contact-card .contact-val {
  display: block;
  color: var(--fog);
  font-size: 15px;
  line-height: 1.7;
  word-break: break-word;
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-faq .faq-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-overview-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .faq-line-head {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
  }

  .page-faq .faq-line-note {
    max-width: 34ch;
    text-align: right;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-overview-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-faq .faq-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-faq .faq-step:nth-child(2) {
    margin-top: 22px;
  }

  .page-faq .faq-step:nth-child(3) {
    margin-top: 44px;
  }
}

@media (min-width: 1040px) {
  .page-faq .faq-strip {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-faq .faq-contact-card {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }
}

@media (max-width: 899px) {
  .page-faq .faq-consult-side {
    margin-top: var(--faq-gap);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-strip-item,
  .page-faq .faq-ov-card,
  .page-faq .faq-step,
  .page-faq .faq-qa-q::after {
    transition: opacity .2s linear;
    transform: none !important;
  }

  .page-faq .faq-strip-item.is-key {
    animation: none;
  }

  .page-faq .faq-qa-a {
    animation: none;
  }

  .page-faq .faq-hero h1 {
    text-shadow: none;
  }
}