.page-faq {
  background: var(--mist);
  color: var(--graphite);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-faq p {
  margin: 0 0 14px;
}

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

.page-faq .eyebrow {
  color: var(--blue-mid);
  margin-bottom: 12px;
}

/* ---------- 首屏 ---------- */
.page-faq .guide-hero {
  position: relative;
  background: var(--ink);
  color: var(--white);
  padding: clamp(36px, 7vw, 72px) 0 clamp(44px, 7vw, 84px);
  border-bottom: 1px solid var(--rule-dark);
  overflow: hidden;
}

.page-faq .guide-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--rule-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--rule-dark) 1px, transparent 1px);
  background-size: 54px 54px;
  pointer-events: none;
}

.page-faq .guide-hero::after {
  content: "";
  position: absolute;
  right: -90px;
  top: 16%;
  width: 340px;
  height: 340px;
  background: radial-gradient(circle, rgba(255, 90, 24, .24), transparent 68%);
  pointer-events: none;
}

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

.page-faq .guide-hero .breadcrumb {
  margin-bottom: 22px;
}

.page-faq .guide-hero .breadcrumb li,
.page-faq .guide-hero .breadcrumb a {
  color: var(--rule);
  font-size: 13px;
}

.page-faq .guide-hero .breadcrumb a:hover {
  color: var(--orange-soft);
}

.page-faq .guide-hero .breadcrumb li[aria-current] {
  color: var(--white);
}

.page-faq .guide-hero .breadcrumb li + li::before {
  color: var(--cool);
}

.page-faq .hero-plate {
  position: relative;
  border: 1px solid var(--rule-dark);
  background: rgba(12, 58, 94, .38);
  padding: clamp(20px, 4vw, 40px);
  clip-path: polygon(0 0, calc(100% - 26px) 0, 100% 26px, 100% 100%, 26px 100%, 0 calc(100% - 26px));
}

.page-faq .guide-hero .eyebrow {
  color: var(--orange-soft);
  margin-bottom: 14px;
}

.page-faq .guide-hero h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(28px, 5.4vw, 52px);
  line-height: 1.16;
  letter-spacing: -.02em;
  margin: 0 0 18px;
  max-width: 20ch;
  color: var(--white);
}

.page-faq .guide-hero .lede {
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: rgba(238, 244, 249, .86);
  max-width: 62ch;
  margin: 0 0 26px;
}

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

/* ---------- 三步手 ---------- */
.page-faq .steps {
  position: relative;
  background: var(--mist);
  padding: clamp(40px, 6vw, 76px) 0;
}

.page-faq .steps::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--orange) 0 34%, var(--celadon) 34% 52%, var(--blue) 52% 100%);
}

.page-faq .steps__head {
  max-width: 68ch;
  margin-bottom: 28px;
}

.page-faq .steps__head h2 {
  font-size: clamp(22px, 3.4vw, 34px);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.26;
  color: var(--ink);
  margin: 8px 0 12px;
}

.page-faq .steps__head p {
  font-size: 16px;
  line-height: 1.82;
  color: var(--graphite);
}

.page-faq .step-cards {
  list-style: none;
  margin: 0 0 30px;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-faq .step-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--rule-light);
  border-top: 3px solid var(--orange);
  padding: 22px 20px 20px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
  transition: transform var(--t), box-shadow var(--t);
}

.page-faq .step-card__idx {
  display: block;
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
  color: var(--orange);
  letter-spacing: -.03em;
  margin-bottom: 10px;
}

.page-faq .step-card__title {
  font-size: 19px;
  font-weight: 900;
  color: var(--ink);
  letter-spacing: -.01em;
  margin: 0 0 10px;
}

.page-faq .step-card p {
  font-size: 15px;
  line-height: 1.82;
  color: var(--graphite);
}

.page-faq .step-card__need {
  list-style: none;
  margin: 14px 0 12px;
  padding: 12px 0 0;
  border-top: 1px dashed var(--rule);
  display: grid;
  gap: 6px;
}

.page-faq .step-card__need li {
  position: relative;
  padding-left: 14px;
  font-size: 13px;
  color: var(--cool);
}

.page-faq .step-card__need li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 1px;
  background: var(--orange);
}

.page-faq .step-card__time {
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--celadon-deep);
  margin: 0;
}

/* ---------- 图片框 ---------- */
.page-faq .guide-figure {
  position: relative;
  margin: 0;
  background: var(--white);
  border: 1px solid var(--rule-light);
  padding: 10px;
}

.page-faq .guide-figure::before,
.page-faq .guide-figure::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid var(--orange);
  pointer-events: none;
}

.page-faq .guide-figure::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}

.page-faq .guide-figure::after {
  bottom: -1px;
  right: -1px;
  border-left: 0;
  border-top: 0;
}

.page-faq .guide-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--mist);
}

.page-faq .guide-figure--wide img {
  aspect-ratio: 1000 / 600;
}

.page-faq .guide-figure--square img {
  aspect-ratio: 1 / 1;
}

.page-faq .guide-figure figcaption {
  padding: 10px 4px 2px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--cool);
}

/* ---------- 主体双列 ---------- */
.page-faq .guide-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  padding: clamp(36px, 5vw, 72px) 0 clamp(24px, 3vw, 44px);
}

.page-faq .toc {
  min-width: 0;
}

.page-faq .toc__label {
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--cool);
  margin: 0 0 10px;
}

.page-faq .toc__list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
}

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

.page-faq .toc__link {
  display: block;
  padding: 9px 14px;
  font-size: 13px;
  white-space: nowrap;
  text-decoration: none;
  color: var(--blue);
  background: var(--white);
  border: 1px solid var(--rule-light);
  transition: color var(--t), border-color var(--t), background var(--t);
}

.page-faq .toc__link:hover {
  color: var(--orange);
  border-color: var(--orange);
}

/* ---------- 章节 ---------- */
.page-faq .guide-section {
  padding-bottom: clamp(38px, 5vw, 64px);
  scroll-margin-top: calc(var(--hdr-h) + 24px);
}

.page-faq .guide-section:last-child {
  padding-bottom: 0;
}

.page-faq .guide-section__head {
  border-bottom: 1px solid var(--rule-light);
  padding-bottom: 18px;
  margin-bottom: 24px;
}

.page-faq .guide-section__head h2 {
  font-size: clamp(21px, 3vw, 30px);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.3;
  color: var(--ink);
  margin: 8px 0 12px;
}

.page-faq .guide-section__head p {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--graphite);
  max-width: 66ch;
}

/* ---------- 定档卡片 ---------- */
.page-faq .pick-grid {
  display: grid;
  gap: 14px;
  margin-bottom: 20px;
}

.page-faq .pick {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--white);
  border: 1px solid var(--rule-light);
  border-left: 3px solid var(--blue-mid);
  padding: 18px 18px 16px;
}

.page-faq .pick--hot {
  border-left-color: var(--orange);
  background: linear-gradient(180deg, rgba(255, 90, 24, .07), var(--white) 62%);
}

.page-faq .pick__scale {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--orange);
  margin: 0;
}

.page-faq .pick h3 {
  font-size: 17px;
  font-weight: 800;
  color: var(--ink);
  margin: 0;
}

.page-faq .pick p {
  flex: 1;
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--graphite);
  margin: 0;
}

.page-faq .pick .link-more {
  font-size: 13.5px;
}

.page-faq .adjust-panel {
  background: var(--blue);
  color: var(--white);
  padding: 22px 22px 20px;
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

.page-faq .adjust-panel h3 {
  font-size: 17px;
  font-weight: 900;
  color: var(--white);
  margin: 0 0 8px;
}

.page-faq .adjust-panel p {
  font-size: 14.5px;
  line-height: 1.82;
  color: rgba(238, 244, 249, .88);
  margin: 0 0 16px;
}

/* ---------- 移动端清单 ---------- */
.page-faq .mobile-split {
  display: grid;
  gap: 18px;
  margin-bottom: 22px;
}

.page-faq .mobile-split__text p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--graphite);
}

.page-faq .mobile-split__hint {
  padding-left: 12px;
  border-left: 2px solid var(--celadon);
  font-size: 12px;
  letter-spacing: .02em;
  color: var(--cool);
}

.page-faq .check-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-faq .check-item {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 52px;
  padding: 12px 14px;
  background: var(--white);
  border: 1px solid var(--rule-light);
  cursor: pointer;
  transition: border-color var(--t), background var(--t);
}

.page-faq .check-item:hover {
  border-color: var(--rule);
}

.page-faq .check-item input {
  appearance: none;
  -webkit-appearance: none;
  position: relative;
  flex: 0 0 20px;
  width: 20px;
  height: 20px;
  margin: 0;
  border: 1px solid var(--rule);
  background: var(--mist);
  cursor: pointer;
  transition: background var(--t), border-color var(--t);
}

.page-faq .check-item input:checked {
  background: var(--celadon);
  border-color: var(--celadon);
}

.page-faq .check-item input:checked::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--white);
  border-bottom: 2px solid var(--white);
  transform: rotate(45deg);
}

.page-faq .check-item:has(input:checked) {
  border-color: var(--celadon);
  background: rgba(53, 192, 160, .08);
}

.page-faq .check-item__text {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--ink);
}

.page-faq .dev-tag {
  flex: 0 0 auto;
  padding: 5px 8px;
  font-size: 11px;
  line-height: 1;
  letter-spacing: .04em;
  white-space: nowrap;
  border: 1px solid currentColor;
}

.page-faq .dev-tag--phone {
  color: var(--celadon-deep);
}

.page-faq .dev-tag--mix {
  color: var(--blue-mid);
}

.page-faq .dev-tag--desk {
  color: var(--cool);
}

/* ---------- 权益规则 ---------- */
.page-faq .rule-rows {
  margin: 0;
  border-top: 1px solid var(--rule-light);
}

.page-faq .rule-row {
  display: grid;
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px dashed var(--rule);
}

.page-faq .rule-row__key {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--blue);
}

.page-faq .rule-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--graphite);
}

.page-faq .rule-note {
  margin-top: 20px;
  padding: 14px 16px;
  background: var(--white);
  border-left: 3px solid var(--celadon);
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--graphite);
}

/* ---------- 问答 ---------- */
.page-faq .faq-group {
  margin-bottom: 26px;
}

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

.page-faq .faq-group__title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 900;
  letter-spacing: .02em;
  color: var(--ink);
  margin: 0 0 10px;
}

.page-faq .faq-group__title .mono {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  font-size: 12px;
  background: var(--blue);
  color: var(--white);
}

.page-faq details.q {
  border-bottom: 1px solid var(--rule-light);
  border-left: 3px solid transparent;
  transition: border-color var(--t), background var(--t);
}

.page-faq details.q[open] {
  border-left-color: var(--orange);
  background: var(--white);
}

.page-faq details.q > summary {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  list-style: none;
  padding: 14px;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--blue);
  cursor: pointer;
}

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

.page-faq details.q > summary::marker {
  content: "";
}

.page-faq details.q > summary:hover {
  color: var(--orange);
}

.page-faq .q__num {
  flex: 0 0 auto;
  padding-top: 3px;
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--cool);
}

.page-faq details.q > summary::after {
  content: "";
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  margin-left: auto;
  margin-top: 6px;
  border-right: 2px solid var(--orange);
  border-bottom: 2px solid var(--orange);
  transform: rotate(45deg);
  transition: transform var(--t), margin-top var(--t);
}

.page-faq details.q[open] > summary::after {
  transform: rotate(225deg);
  margin-top: 10px;
}

.page-faq .q__a {
  margin: 0;
  padding: 0 16px 18px 44px;
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--graphite);
}

/* ---------- 底部支持区 ---------- */
.page-faq .help {
  position: relative;
  background: var(--ink);
  color: var(--white);
  padding: clamp(40px, 6vw, 76px) 0;
}

.page-faq .help::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(var(--rule-dark) 1px, transparent 1px);
  background-size: 100% 42px;
  opacity: .55;
  pointer-events: none;
}

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

.page-faq .help__head {
  max-width: 66ch;
  margin-bottom: 28px;
}

.page-faq .help__head .eyebrow {
  color: var(--orange-soft);
}

.page-faq .help__head h2 {
  font-size: clamp(22px, 3.2vw, 32px);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.28;
  color: var(--white);
  margin: 8px 0 12px;
}

.page-faq .help__head p {
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(238, 244, 249, .82);
}

.page-faq .help-grid {
  display: grid;
  gap: 14px;
}

.page-faq .help-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
  padding: 18px;
  background: rgba(23, 85, 127, .42);
  border: 1px solid var(--rule-dark);
  border-top: 2px solid var(--orange);
}

.page-faq .help-card__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--orange-soft);
}

.page-faq .help-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  word-break: break-word;
}

.page-faq .help-card__note {
  flex: 1;
  margin: 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(238, 244, 249, .78);
}

.page-faq .help-card .btn {
  align-self: flex-start;
  margin-top: 4px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-faq .check-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-faq .rule-row {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
    padding: 20px 0;
  }
}

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

@media (min-width: 860px) {
  .page-faq .mobile-split {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 26px;
    align-items: start;
  }

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

@media (min-width: 880px) {
  .page-faq .step-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

  .page-faq .step-card:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 44px;
    right: -17px;
    width: 10px;
    height: 10px;
    border-top: 1px solid var(--rule);
    border-right: 1px solid var(--rule);
    transform: rotate(45deg);
  }

  .page-faq .step-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(6, 24, 43, .09);
  }
}

@media (min-width: 1024px) {
  .page-faq .guide-body {
    grid-template-columns: 232px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 64px);
  }

  .page-faq .toc {
    position: sticky;
    top: calc(var(--hdr-h) + 20px);
    align-self: start;
  }

  .page-faq .toc__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    border-left: 2px solid var(--rule-light);
    padding-bottom: 0;
  }

  .page-faq .toc__list li {
    flex: none;
  }

  .page-faq .toc__link {
    margin-left: -2px;
    padding: 9px 12px;
    background: transparent;
    border: 0;
    border-left: 2px solid transparent;
  }

  .page-faq .toc__link:hover {
    color: var(--orange);
    border-left-color: var(--orange);
    background: rgba(255, 90, 24, .05);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq *,
  .page-faq *::before,
  .page-faq *::after {
    transition: none !important;
    animation: none !important;
  }

  .page-faq .step-card:hover {
    transform: none;
    box-shadow: none;
  }
}