.page-faq {
  --faq-gap: clamp(16px, 3vw, 26px);
  --faq-rail: 68px;
}

.page-faq > .sec,
.page-faq .sec + .sec {
  margin-top: clamp(44px, 7vw, 80px);
}

.page-faq > .sec:last-of-type {
  margin-bottom: clamp(44px, 7vw, 88px);
}

/* ---------- 首屏 ---------- */

.page-faq .faq-hero {
  position: relative;
  padding-top: clamp(26px, 4.5vw, 52px);
  padding-bottom: clamp(26px, 4.5vw, 52px);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(115deg, rgba(47, 227, 210, 0.10) 0%, rgba(75, 46, 131, 0.16) 44%, rgba(3, 11, 20, 0) 70%);
  overflow: hidden;
}

.page-faq .faq-hero h1 {
  margin: 10px 0 16px;
  max-width: 21ch;
  font-size: clamp(28px, 6.2vw, 54px);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: 0.02em;
  color: var(--white);
}

.page-faq .faq-hero .lede {
  max-width: 640px;
  margin: 0;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

/* ---------- 通用区块标题 ---------- */

.page-faq .sec__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: clamp(14px, 2.5vw, 24px);
  row-gap: 6px;
  align-items: baseline;
  margin-bottom: clamp(20px, 3.5vw, 32px);
}

.page-faq .sec__idx {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 40px);
  font-weight: 700;
  line-height: 1;
  color: var(--line);
  letter-spacing: -0.01em;
}

.page-faq .sec__title {
  margin: 0;
  font-size: clamp(20px, 3.2vw, 30px);
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: 0.02em;
  color: var(--white);
}

.page-faq .sec__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 01 三格快速自查条 ---------- */

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

.page-faq .faq-quick::before {
  content: "";
  grid-column: 1 / -1;
  height: 3px;
  margin-bottom: clamp(14px, 2.4vw, 22px);
  background: linear-gradient(90deg, var(--cyan) 0%, var(--cyan) 42%, var(--violet) 42%, var(--violet) 100%);
  transform: skewX(-24deg);
  transform-origin: left center;
}

.page-faq .faq-quick__item {
  position: relative;
  padding: 20px 18px 20px 52px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(14, 42, 66, 0.86), rgba(7, 26, 43, 0.72));
  transition: border-color 0.24s var(--ease), background-color 0.24s var(--ease);
}

.page-faq .faq-quick__item:has(.faq-quick__box:checked) {
  border-color: var(--cyan);
  background: linear-gradient(180deg, rgba(47, 227, 210, 0.12), rgba(7, 26, 43, 0.86));
}

.page-faq .faq-quick__box {
  position: absolute;
  left: 18px;
  top: 22px;
  width: 18px;
  height: 18px;
  margin: 0;
  accent-color: var(--cyan);
  cursor: pointer;
}

.page-faq .faq-quick__label {
  display: block;
  cursor: pointer;
}

.page-faq .faq-quick__label strong {
  display: block;
  margin-bottom: 8px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--white);
}

.page-faq .faq-quick__label span {
  display: block;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 02 分步排查 ---------- */

.page-faq .faq-figure {
  margin: 0 0 clamp(24px, 4vw, 38px);
}

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

.page-faq .faq-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-faq .faq-step {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-step__no {
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-faq .faq-step__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--white);
}

.page-faq .faq-step__text {
  margin: 0;
  max-width: 40em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-step__judge {
  margin: 0;
  padding-left: 14px;
  border-left: 2px solid var(--pulse);
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-step__judge b {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--pulse);
}

/* ---------- 03 登录异常 ---------- */

.page-faq .faq-login-grid {
  align-items: start;
}

.page-faq .faq-login-list {
  display: grid;
  gap: var(--faq-gap);
}

.page-faq .faq-login {
  padding: 20px 18px;
  border: 1px solid var(--line);
  background: var(--night);
}

.page-faq .faq-login__title {
  margin: 12px 0 0;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--white);
}

.page-faq .faq-login ol {
  margin: 12px 0 0;
  padding-left: 1.3em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-login ol li + li {
  margin-top: 6px;
}

.page-faq .faq-login__esc {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.75;
  color: var(--mist);
}

.page-faq .faq-figure--side {
  margin: 0;
}

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

/* ---------- 04 导航位置 ---------- */

.page-faq .faq-navmap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-faq .faq-navmap__col {
  padding: 18px;
  border: 1px solid var(--line);
  background: var(--night);
}

.page-faq .faq-navmap__col h3 {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

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

.page-faq .faq-navmap__col li {
  padding: 8px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 14px;
}

.page-faq .faq-navmap__col li:last-child {
  border-bottom: 0;
}

.page-faq .faq-navmap__col a {
  color: var(--white);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

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

.page-faq .faq-path {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: clamp(18px, 3vw, 26px);
  border-top: 1px solid var(--line);
}

.page-faq .faq-path__item {
  margin: 0;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-soft);
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-faq .faq-path__item span {
  display: inline-block;
  min-width: 4.4em;
  margin-right: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

/* ---------- 05 字段说明双列 ---------- */

.page-faq .faq-fields {
  border-top: 1px solid var(--line);
}

.page-faq .faq-field {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .faq-field__k {
  font-family: var(--font-mono);
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-faq .faq-field__v {
  margin: 0;
  max-width: 40em;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-fields__tip {
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding: 16px 18px;
  border-left: 2px solid var(--cyan);
  background: linear-gradient(90deg, rgba(47, 227, 210, 0.09), rgba(7, 26, 43, 0));
  font-size: 14px;
  line-height: 1.85;
  color: var(--white);
}

/* ---------- 06 联系 ---------- */

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

.page-faq .faq-contact__panel {
  padding: 20px 18px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(14, 42, 66, 0.8), rgba(7, 26, 43, 0.6));
}

.page-faq .faq-contact__panel--alt {
  background: var(--night);
}

.page-faq .faq-contact__title {
  margin: 0 0 14px;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--white);
}

.page-faq .contact-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-faq .contact-row:last-of-type {
  border-bottom: 0;
}

.page-faq .contact-row__k {
  font-size: 13px;
  color: var(--muted);
}

.page-faq .contact-row__v {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 500;
  color: var(--white);
  word-break: break-all;
}

.page-faq .faq-copy-status {
  min-height: 1.5em;
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--cyan);
}

.page-faq .faq-contact__list {
  margin: 0;
  padding-left: 1.3em;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-contact__list li + li {
  margin-top: 8px;
}

.page-faq .faq-contact__foot {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 07 折叠问答 ---------- */

.page-faq .faq-acc-list {
  display: grid;
  gap: 8px;
}

.page-faq .faq-acc {
  border: 1px solid var(--line);
  background: var(--night);
  transition: border-color 0.24s var(--ease);
}

.page-faq .faq-acc[open] {
  border-color: var(--line-soft);
}

.page-faq .faq-acc summary {
  position: relative;
  padding: 16px 48px 16px 18px;
  list-style: none;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--white);
}

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

.page-faq .faq-acc summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 500;
  color: var(--cyan);
  transition: transform 0.24s var(--ease), opacity 0.24s var(--ease);
}

.page-faq .faq-acc[open] summary::after {
  content: "−";
  transform: translateY(-50%) rotate(180deg);
}

.page-faq .faq-acc summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-faq .faq-acc__body {
  padding: 14px 18px 18px;
  border-top: 1px solid var(--line-soft);
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

.page-faq .faq-acc[open] .faq-acc__body {
  animation: faq-open 0.3s var(--ease);
}

.page-faq .faq-next {
  margin: clamp(20px, 3vw, 30px) 0 0;
  font-size: 14px;
  line-height: 1.9;
  color: var(--muted);
}

.page-faq .faq-next a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: border-color 0.2s var(--ease);
}

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

@keyframes faq-open {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 断点 ---------- */

@media (min-width: 760px) {
  .page-faq .faq-quick {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .page-faq .faq-path {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0 clamp(16px, 3vw, 30px);
  }

  .page-faq .faq-path__item {
    border-bottom: 0;
    border-top: 1px solid var(--line-soft);
    padding-top: 16px;
  }

  .page-faq .faq-path__item span {
    display: block;
    margin: 0 0 6px;
  }
}

@media (min-width: 860px) {
  .page-faq .faq-contact {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-faq .faq-field {
    grid-template-columns: minmax(0, 168px) minmax(0, 1fr);
    gap: 26px;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-faq .faq-step {
    grid-template-columns: var(--faq-rail) minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 30px;
    align-items: start;
    padding: 26px 0;
  }

  .page-faq .faq-step__no {
    font-size: 30px;
  }

  .page-faq .faq-figure--side {
    position: sticky;
    top: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-acc[open] .faq-acc__body {
    animation: none;
  }

  .page-faq .faq-quick__item,
  .page-faq .faq-acc,
  .page-faq .faq-acc summary::after,
  .page-faq .faq-navmap__col a,
  .page-faq .faq-next a {
    transition: none;
  }
}
</main>