.page-faq {
  --faq-radius: 0;
  --faq-shadow: 6px 6px 0 var(--ink);
}

/* ---------- 首屏 ---------- */
.page-faq .faq-hero {
  position: relative;
  padding-top: calc(var(--header-h) + 2rem);
  background:
    linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%);
  overflow: hidden;
}

.page-faq .faq-hero::after {
  content: "";
  position: absolute;
  inset: auto -10% -30% auto;
  width: 60%;
  height: 60%;
  background: radial-gradient(circle at 70% 30%, rgba(168, 56, 42, .16), transparent 65%);
  pointer-events: none;
}

.page-faq .faq-hero .breadcrumbs {
  margin-bottom: 1.5rem;
}

.page-faq .faq-hero .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 13px;
  font-family: var(--font-mono);
  letter-spacing: .06em;
  color: var(--slate);
}

.page-faq .faq-hero .breadcrumbs a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid transparent;
}

.page-faq .faq-hero .breadcrumbs a:hover {
  border-bottom-color: var(--red);
}

.page-faq .faq-hero .breadcrumbs li + li::before {
  content: "/";
  margin-right: .4rem;
  color: var(--line-strong);
}

.page-faq .faq-hero-grid {
  align-items: end;
  row-gap: 2rem;
}

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

.page-faq .faq-hero-copy .eyebrow {
  margin: 0 0 .75rem;
}

.page-faq .faq-hero-copy .display-title {
  margin: 0 0 1.1rem;
  max-width: 20ch;
}

.page-faq .faq-hero-copy .lede {
  margin: 0 0 1.6rem;
  max-width: 60ch;
}

.page-faq .faq-hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-bottom: 1rem;
}

.page-faq .faq-hero-note {
  margin: 0;
  font-size: 14px;
  color: var(--slate);
}

.page-faq .faq-hero-note a {
  color: var(--emerald);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--emerald);
}

.page-faq .faq-hero-note a:hover {
  color: var(--red);
  border-bottom-color: var(--red);
}

.page-faq .faq-hero-media {
  align-self: start;
}

.page-faq .faq-hero-media .media-frame {
  border: 3px solid var(--ink);
  box-shadow: var(--faq-shadow);
  background: var(--night);
}

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

/* ---------- 三条热点 ---------- */
.page-faq .faq-hot {
  margin-top: clamp(2.5rem, 5vw, 4rem);
}

.page-faq .faq-hot .block-title {
  margin: 0 0 1.25rem;
}

.page-faq .faq-hot-list {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

.page-faq .faq-hot-card {
  position: relative;
  padding: 1.25rem 1.25rem 1rem;
  background: var(--paper);
  border: 3px solid var(--ink);
  box-shadow: var(--faq-shadow);
  border-top: 8px solid var(--red);
  display: flex;
  flex-direction: column;
  gap: .55rem;
}

.page-faq .faq-hot-card:nth-child(2) {
  border-top-color: var(--emerald);
}

.page-faq .faq-hot-card:nth-child(3) {
  border-top-color: var(--gold);
}

.page-faq .faq-hot-card h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 17px;
  line-height: 1.4;
  color: var(--ink);
}

.page-faq .faq-hot-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--slate);
}

.page-faq .faq-hot-link {
  margin-top: auto;
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--red);
  text-decoration: none;
  border-bottom: 2px solid var(--red);
  padding-bottom: 2px;
}

.page-faq .faq-hot-link:hover {
  color: var(--emerald);
  border-bottom-color: var(--emerald);
}

/* ---------- 主体布局 ---------- */
.page-faq .faq-body {
  background: var(--paper);
}

.page-faq .faq-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

/* ---------- 粘性分组索引 ---------- */
.page-faq .faq-index {
  border: 3px solid var(--ink);
  background: var(--night);
  color: var(--paper);
  box-shadow: var(--faq-shadow);
  padding: 1.25rem 1.15rem;
  align-self: start;
}

.page-faq .faq-index-title {
  margin: 0 0 .9rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-faq .faq-index-list {
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
  display: grid;
  gap: .15rem;
}

.page-faq .faq-index-list a {
  display: flex;
  align-items: baseline;
  gap: .6rem;
  padding: .55rem .5rem;
  color: var(--paper);
  text-decoration: none;
  font-size: 15px;
  border-left: 4px solid transparent;
  transition: background-color .22s var(--ease), border-color .22s var(--ease);
}

.page-faq .faq-index-list a:hover,
.page-faq .faq-index-list a:focus-visible {
  background: rgba(217, 164, 25, .16);
  border-left-color: var(--gold);
  outline: none;
}

.page-faq .faq-index-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
  letter-spacing: .08em;
}

.page-faq .faq-index-note {
  margin: 0 0 1rem;
  font-size: 13px;
  line-height: 1.6;
  color: var(--paper-70);
  border-top: 1px dashed rgba(244, 237, 226, .28);
  padding-top: .9rem;
}

.page-faq .faq-index-btn {
  display: inline-block;
  width: 100%;
  text-align: center;
}

/* ---------- 问答流 ---------- */
.page-faq .faq-stream {
  display: grid;
  gap: clamp(2.5rem, 5vw, 4rem);
  min-width: 0;
}

.page-faq .faq-group {
  scroll-margin-top: calc(var(--header-h) + 1.25rem);
}

.page-faq .faq-group-head {
  margin-bottom: 1.5rem;
}

.page-faq .faq-group-head .eyebrow {
  margin: 0 0 .5rem;
  color: var(--gold-deep);
}

.page-faq .faq-group-head .section-title {
  margin: 0 0 .7rem;
}

.page-faq .faq-group-lede {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--slate);
}

/* 分组配图 */
.page-faq .faq-group-media {
  margin: 0 0 1.75rem;
}

.page-faq .faq-group-media .media-frame {
  border: 3px solid var(--ink);
  box-shadow: var(--faq-shadow);
  background: var(--night);
  overflow: hidden;
}

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

.page-faq .faq-group-media figcaption {
  margin-top: .6rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  color: var(--slate);
}

/* 展开组 */
.page-faq .faq-item {
  border: 3px solid var(--ink);
  background: var(--paper);
  box-shadow: var(--faq-shadow);
  margin-bottom: .9rem;
}

.page-faq .faq-item + .faq-item {
  margin-top: 0;
}

.page-faq .faq-item summary {
  display: flex;
  align-items: flex-start;
  gap: .85rem;
  padding: 1.05rem 1.15rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: 16px;
  line-height: 1.5;
  color: var(--ink);
  position: relative;
  transition: background-color .22s var(--ease), color .22s var(--ease);
}

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

.page-faq .faq-item summary::after {
  content: "+";
  flex: 0 0 auto;
  margin-left: auto;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 20px;
  line-height: 1;
  color: var(--red);
  transition: transform .22s var(--ease), color .22s var(--ease);
}

.page-faq .faq-item[open] > summary {
  background: var(--night);
  color: var(--paper);
  border-bottom: 3px solid var(--ink);
}

.page-faq .faq-item[open] > summary::after {
  content: "−";
  color: var(--gold);
}

.page-faq .faq-item[open] > summary .faq-num {
  color: var(--gold);
}

.page-faq .faq-item summary:hover {
  background: rgba(217, 164, 25, .14);
}

.page-faq .faq-item[open] > summary:hover {
  background: var(--night);
}

.page-faq .faq-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .08em;
  color: var(--red);
  padding-top: .2em;
  transition: color .22s var(--ease);
}

.page-faq .faq-q {
  flex: 1 1 auto;
}

.page-faq .faq-item .disclosure-body {
  padding: 1.1rem 1.15rem 1.35rem;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--ink);
  animation: faq-body-in .26s var(--ease);
}

.page-faq .faq-item .disclosure-body p {
  margin: 0 0 .9rem;
  max-width: 68ch;
}

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

.page-faq .faq-item .disclosure-body a {
  color: var(--emerald);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--emerald);
}

.page-faq .faq-item .disclosure-body a:hover {
  color: var(--red);
  border-bottom-color: var(--red);
}

@keyframes faq-body-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 步骤列表 */
.page-faq .faq-steps {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: grid;
  gap: .7rem;
  counter-reset: faq-step;
}

.page-faq .faq-steps li {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--ink);
}

.page-faq .faq-dot {
  flex: 0 0 auto;
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--emerald);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  border: 2px solid var(--ink);
  margin-top: .06em;
}

.page-faq .faq-steps li:nth-child(even) .faq-dot {
  background: var(--red);
}

/* 普通列表 */
.page-faq .faq-list {
  list-style: none;
  margin: 0 0 .9rem;
  padding: 0;
  display: grid;
  gap: .45rem;
}

.page-faq .faq-list li {
  position: relative;
  padding-left: 1.15rem;
  font-size: 15.5px;
  line-height: 1.7;
}

.page-faq .faq-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 8px;
  height: 8px;
  background: var(--gold);
  border: 1.5px solid var(--ink);
}

/* 字段表 */
.page-faq .faq-field-table {
  overflow-x: auto;
  border: 2px solid var(--ink);
  margin-bottom: .9rem;
}

.page-faq .faq-field-table .data-table {
  width: 100%;
  min-width: 380px;
  border-collapse: collapse;
  font-size: 14.5px;
}

.page-faq .faq-field-table th,
.page-faq .faq-field-table td {
  padding: .6rem .8rem;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

.page-faq .faq-field-table thead th {
  background: var(--night);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.page-faq .faq-field-table tbody tr:hover {
  background: rgba(217, 164, 25, .12);
}

.page-faq .faq-field-table td.num {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--red);
  white-space: nowrap;
}

/* 复制行 */
.page-faq .faq-copy-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .6rem;
  margin-top: .3rem;
}

.page-faq .faq-code {
  font-family: var(--font-mono);
  font-size: 14px;
  background: var(--paper-2);
  border: 2px solid var(--ink);
  padding: .4rem .7rem;
  color: var(--ink);
  word-break: break-all;
}

.page-faq .faq-inline-link {
  margin: .6rem 0 0;
  font-size: 14px;
  color: var(--slate);
}

/* 尾部结论带 */
.page-faq .faq-tail {
  border-top: 3px solid var(--ink);
  padding-top: clamp(1.75rem, 4vw, 2.75rem);
}

.page-faq .faq-tail .conclusion-band {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  background: var(--night);
  border-left: 8px solid var(--red);
  padding: 1.4rem 1.5rem;
  color: var(--paper);
  flex-wrap: wrap;
}

.page-faq .faq-tail .band-number {
  font-family: var(--font-mono);
  font-size: clamp(48px, 9vw, 84px);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
  letter-spacing: -.02em;
}

.page-faq .faq-tail .band-text {
  margin: 0;
  flex: 1 1 220px;
  font-size: 17px;
  line-height: 1.65;
  color: var(--paper);
}

.page-faq .faq-tail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.25rem;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-faq .faq-hot-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

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

@media (min-width: 1024px) {
  .page-faq .faq-layout {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 3rem;
  }

  .page-faq .faq-index {
    position: sticky;
    top: calc(var(--header-h) + 1.25rem);
    max-height: calc(100vh - var(--header-h) - 2.5rem);
    overflow-y: auto;
  }

  .page-faq .faq-group-lede {
    font-size: 17px;
  }

  .page-faq .faq-item summary {
    font-size: 17px;
    padding: 1.15rem 1.35rem;
  }

  .page-faq .faq-item .disclosure-body {
    padding: 1.2rem 1.35rem 1.5rem;
  }
}

@media (max-width: 639px) {
  .page-faq .faq-hero-copy .display-title {
    max-width: none;
  }

  .page-faq .faq-hot-card {
    box-shadow: 4px 4px 0 var(--ink);
  }

  .page-faq .faq-item,
  .page-faq .faq-index,
  .page-faq .faq-group-media .media-frame,
  .page-faq .faq-hero-media .media-frame {
    box-shadow: 4px 4px 0 var(--ink);
  }

  .page-faq .faq-tail .conclusion-band {
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-faq .faq-item .disclosure-body {
    animation: none;
  }

  .page-faq .faq-item summary::after,
  .page-faq .faq-item summary,
  .page-faq .faq-index-list a {
    transition: none;
  }
}