.page-faq {
  --faq-grid-line: rgba(36, 55, 77, 0.6);
  --faq-gap: clamp(20px, 4vw, 40px);
  background-color: var(--bg-deep);
  background-image:
    linear-gradient(var(--faq-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--faq-grid-line) 1px, transparent 1px);
  background-size: 96px 96px;
  background-position: -1px -1px;
  color: var(--text);
  font-family: var(--sans);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-faq * {
  box-sizing: border-box;
}

.page-faq__wrap {
  width: min(var(--wrap), 100% - 40px);
  margin-inline: auto;
  min-width: 0;
}

.page-faq .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-top: clamp(16px, 3vw, 28px);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-faq .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease;
}

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

/* ---------- 首屏 ---------- */
.faq-hero {
  display: grid;
  gap: var(--faq-gap);
  margin-top: clamp(24px, 4vw, 44px);
}

.faq-hero__main {
  min-width: 0;
  border-left: 2px solid var(--orange);
  padding-left: clamp(16px, 3vw, 28px);
}

.faq-hero__main .mono-label {
  display: block;
  color: var(--cyan);
  margin-bottom: 14px;
}

.page-faq h1 {
  margin: 0 0 18px;
  font-size: clamp(28px, 5.2vw, 54px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: #FDFCF8;
  max-width: 20ch;
}

.faq-hero__lede {
  margin: 0;
  max-width: 62ch;
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--text);
}

.faq-brief {
  background: var(--cream);
  color: var(--ink);
  padding: clamp(18px, 3vw, 26px);
  clip-path: var(--cut-lg);
  display: grid;
  gap: 2px;
}

.faq-brief__row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px dashed rgba(27, 22, 17, 0.28);
}

.faq-brief__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.faq-brief__num {
  font-family: var(--mono);
  font-size: clamp(30px, 4.5vw, 44px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.faq-brief__num::after {
  content: "";
}

.faq-brief__label {
  font-size: 13.5px;
  line-height: 1.5;
  color: #4A4238;
}

@media (min-width: 900px) {
  .faq-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4.4fr);
    gap: clamp(32px, 5vw, 72px);
    align-items: start;
  }
}

/* ---------- 分类导航 ---------- */
.faq-index {
  position: sticky;
  top: var(--header-h);
  z-index: 20;
  margin-top: clamp(28px, 4vw, 48px);
  background: rgba(10, 26, 47, 0.95);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.faq-index__inner {
  width: min(var(--wrap), 100% - 40px);
  margin-inline: auto;
}

.faq-index__list {
  display: flex;
  margin: 0;
  padding: 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.faq-index__link {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 15px 16px;
  white-space: nowrap;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--muted);
  text-decoration: none;
  border-right: 1px solid var(--line);
  box-shadow: inset 0 -2px 0 transparent;
  transition: color 0.18s ease, background-color 0.18s ease, box-shadow 0.18s ease;
}

.faq-index__link:hover,
.faq-index__link:focus-visible {
  color: #FDFCF8;
  background: rgba(255, 106, 43, 0.14);
  box-shadow: inset 0 -2px 0 var(--orange);
  outline: none;
}

.faq-index__num {
  color: var(--gold);
}

/* ---------- 图片容器 ---------- */
.faq-fig {
  margin: clamp(26px, 4vw, 44px) 0 0;
}

.faq-fig img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--line);
  clip-path: var(--cut-lg);
  background: var(--bg-panel);
}

.faq-fig figcaption {
  margin-top: 10px;
  color: var(--muted);
}

.faq-fig--ring {
  margin-top: clamp(28px, 4vw, 48px);
  max-width: 1000px;
}

/* ---------- 分组 ---------- */
.faq-group {
  margin-top: clamp(44px, 7vw, 88px);
  scroll-margin-top: calc(var(--header-h) + 80px);
}

.page-faq .section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--line);
}

.page-faq .section-head__idx {
  color: var(--gold);
}

.page-faq .section-head__title {
  margin: 0;
  font-size: clamp(22px, 3.2vw, 34px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: #FDFCF8;
}

.page-faq .section-head__note {
  margin: 0;
  font-size: 13px;
  font-family: var(--mono);
  letter-spacing: 0.06em;
  color: var(--muted);
}

@media (min-width: 820px) {
  .page-faq .section-head {
    grid-template-columns: 190px minmax(0, 1fr) auto;
    align-items: baseline;
    gap: 24px;
  }
}

.faq-group:target .section-head__title {
  color: var(--orange);
}

/* ---------- 问答条目 ---------- */
.faq-list {
  border-top: 1px solid var(--line);
  margin-top: -1px;
}

.qa {
  border-bottom: 1px solid var(--line);
}

.qa__q {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) 20px;
  gap: 10px;
  align-items: start;
  padding: 18px 0;
  cursor: pointer;
  list-style: none;
  font-size: 16.5px;
  font-weight: 600;
  line-height: 1.6;
  color: #E6EEF7;
  transition: color 0.18s ease;
}

.qa__q::-webkit-details-marker {
  display: none;
}

.qa__q::marker {
  content: "";
}

.qa__q:hover,
.qa__q:focus-visible {
  color: var(--orange);
  outline: none;
}

.qa__idx {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
  padding-top: 5px;
}

.qa__mark {
  font-family: var(--mono);
  font-size: 18px;
  line-height: 1.5;
  color: var(--cyan);
  text-align: right;
  transition: color 0.18s ease;
}

.qa[open] .qa__mark {
  color: var(--orange);
}

.qa[open] .qa__q {
  color: #FDFCF8;
}

.qa__a {
  padding: 0 0 22px 52px;
  border-left: 1px solid transparent;
}

.qa[open] .qa__a {
  animation: faqSlide 0.28s ease-out both;
}

@keyframes faqSlide {
  from {
    opacity: 0;
    transform: translateX(-10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.qa__a p {
  margin: 0 0 12px;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--text);
}

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

.qa__a a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color 0.18s ease, border-color 0.18s ease;
}

.qa__a a:hover,
.qa__a a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

/* ---------- 步骤与刻度 ---------- */
.faq-steps {
  counter-reset: step;
  margin: 6px 0 14px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.faq-steps li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--text);
}

.faq-steps li::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  padding-top: 5px;
  border-bottom: 1px solid var(--line);
}

/* ---------- 季度节拍条 ---------- */
.cycle {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 18px 0 14px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.cycle__node {
  position: relative;
  padding: 20px 14px 16px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(15, 39, 64, 0.6);
}

.cycle__node::before {
  content: "";
  position: absolute;
  top: -4px;
  left: 14px;
  width: 7px;
  height: 7px;
  background: var(--cyan);
}

.cycle__node:last-child::before {
  background: var(--orange);
}

.cycle__label {
  display: block;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--gold);
  margin-bottom: 8px;
}

.cycle__text {
  display: block;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text);
}

@media (min-width: 760px) {
  .cycle {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.badge-cal {
  display: inline-block;
  margin: 0;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 5px 10px;
}

/* ---------- 求助区块 ---------- */
.faq-help {
  margin-top: clamp(44px, 7vw, 88px);
  padding: clamp(22px, 4vw, 42px);
  background: var(--ink);
  border: 1px solid var(--line);
  clip-path: var(--cut-lg);
  scroll-margin-top: calc(var(--header-h) + 80px);
}

.faq-help .mono-label {
  display: block;
  color: var(--gold);
  margin-bottom: 12px;
}

.faq-help h2 {
  margin: 0 0 14px;
  font-size: clamp(22px, 3.2vw, 32px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: #FDFCF8;
}

.faq-help__lede {
  margin: 0 0 22px;
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--text);
}

.checklist {
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
  max-width: 70ch;
}

.checklist li {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--text);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.checklist li::before {
  content: "";
  width: 9px;
  height: 9px;
  margin-top: 9px;
  border: 1px solid var(--cyan);
}

.faq-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.faq-help__contact {
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.9;
  letter-spacing: 0.04em;
  color: var(--muted);
  max-width: 78ch;
}

/* ---------- 收束 ---------- */
.page-faq .next-step {
  margin-top: clamp(36px, 6vw, 72px);
  padding: clamp(20px, 4vw, 34px);
  background: var(--bg-panel);
  border: 1px solid var(--line);
  clip-path: var(--cut-lg);
  display: grid;
  gap: 20px;
  transition: border-color 0.2s ease;
}

.page-faq .next-step:hover {
  border-color: var(--cyan);
}

.next-step__body {
  min-width: 0;
}

.page-faq .next-step__label {
  display: block;
  color: var(--orange);
  margin-bottom: 10px;
}

.page-faq .next-step__text {
  margin: 0;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--text);
}

.next-step__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

@media (min-width: 860px) {
  .page-faq .next-step {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }
}

/* ---------- 窄屏收敛 ---------- */
@media (max-width: 600px) {
  .page-faq {
    background-size: 48px 48px;
  }

  .faq-hero__main {
    border-left-width: 2px;
    padding-left: 14px;
  }

  .qa__q {
    grid-template-columns: 34px minmax(0, 1fr) 16px;
    font-size: 15.5px;
  }

  .qa__a {
    padding-left: 34px;
  }

  .faq-brief__num {
    font-size: 28px;
  }

  .faq-steps li {
    grid-template-columns: 26px minmax(0, 1fr);
    gap: 10px;
  }

  .checklist li {
    grid-template-columns: 16px minmax(0, 1fr);
    gap: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .qa[open] .qa__a {
    animation: none;
  }

  .faq-index__link,
  .qa__q,
  .qa__mark,
  .page-faq .next-step {
    transition: none;
  }
}