@charset "UTF-8";
:root {
  --bg: #0B0B0F;
  --bg2: #16181D;
  --bg3: #1E2128;
  --ink: #F5F5F7;
  --muted: #9AA0A6;
  --rule: #2A2D34;
  --accent: #FE2C55;
  /* 粉红：强调 */
  --accent-soft: rgba(254, 44, 85, 0.14);
  --accent2: #25F4EE;
  /* 青蓝：链接/标签 */
  --accent2-soft: rgba(37, 244, 238, 0.12);
  --warn: #FFCC00;
  --wrap: min(1120px, 92vw);
  --mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body.fz-page {
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  font-size: 16px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.fz-page img {
  max-width: 100%;
}

.fz-page a {
  color: var(--accent2);
  text-decoration: none;
  transition: color .2s;
}

.fz-page a:hover {
  color: var(--accent);
}

.fz-page .mono {
  font-family: var(--mono);
}

.fz-wrap {
  max-width: var(--wrap);
  margin: 0 auto;

}

.fz-partners a {
  padding-left: 0.1rem;
  color: var(--muted);
}

/* ============ 顶部锚点导航 ============ */
.fz-topbar {
  position: sticky;
  top: 0;
  z-index: 90;
  background: rgba(11, 11, 15, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--rule);
  padding-top: 3px;
}

.fz-topbar::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent2) 100%);
}

.fz-topbar-in {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  height: 58px;
}

.fz-brand {
  display: flex;
  align-items: center;
  gap: .6rem;
  color: var(--ink);
}

.fz-brand:hover {
  color: var(--ink);
}

.fz-brand img {
  height: 24px;
  display: block;
}

.fz-brand b {
  font-size: .95rem;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: .05em;
}

.fz-anchors {
  display: flex;
  align-items: center;
  gap: 1.3rem;
  margin: 0 auto;
  flex-wrap: nowrap;
}

.fz-anchors a {
  color: var(--muted);
  font-size: .9rem;
  white-space: nowrap;
  padding: .35rem 0;
  border-bottom: 2px solid transparent;
}

.fz-anchors a:hover {
  color: var(--ink);
}

.fz-anchors a.on {
  color: var(--accent2);
  border-bottom-color: var(--accent);
}

.fz-topbar-cta {
  display: flex;
  align-items: center;
  gap: .6rem;
}

.fz-topbar-link {
  color: var(--muted);
  font-size: .88rem;
  white-space: nowrap;
}

.fz-topbar-link:hover {
  color: var(--accent2);
}

.fz-burger {
  display: none;
  background: none;
  border: 1px solid var(--rule);
  color: var(--ink);
  width: 38px;
  height: 38px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 1rem;
}

/* ============ HERO ============ */
.fz-hero {
  position: relative;
  overflow: hidden;
  padding: 5.5rem 0 4.5rem;
  border-bottom: 1px solid var(--rule);
  background:
    radial-gradient(ellipse 60% 50% at 80% 0%, rgba(254, 44, 85, 0.18), transparent 55%),
    radial-gradient(ellipse 55% 45% at 10% 100%, rgba(37, 244, 238, 0.12), transparent 55%),
    var(--bg);
}

.fz-crumb {
  display: flex;
  align-items: center;
  gap: .55rem;
  font-size: .85rem;
  color: var(--muted);
  margin-bottom: 1.4rem;
}

.fz-crumb .sep {
  color: var(--rule);
}

.fz-crumb .cur {
  color: var(--ink);
}

.fz-eyebrow {
  display: inline-block;
  font-family: var(--mono);
  font-size: .78rem;
  letter-spacing: .18em;
  color: var(--accent2);
  border: 1px solid var(--accent2);
  padding: .3rem .85rem;
  border-radius: 999px;
  background: var(--accent2-soft);
}

.fz-hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: .02em;
  margin: 1.1rem 0 1.2rem;
}

.fz-hero h1 .accent {
  color: var(--accent);
}

.fz-hero-sub {
  color: var(--muted);
  font-size: 1.08rem;
}

.fz-hero-sub b {
  color: var(--ink);
}

.fz-chips {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin: 1.6rem 0 1.8rem;
}

.fz-chips span {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  font-size: .86rem;
  color: var(--muted);
  border-bottom: 1px dashed var(--rule);
  padding-bottom: .15rem;
}

.fz-chips i {
  color: var(--accent);
}

.fz-hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
}

.fz-link-more {
  font-size: .95rem;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: .5rem;
}

.fz-link-more:hover {
  color: var(--accent);
}

.fz-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0 3.5rem;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--rule);
}

.fz-stats>div {
  padding: .2rem 0;
}

.fz-stats b {
  display: block;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.3;
}

.fz-stats b i {
  font-style: normal;
  color: var(--accent);
  font-size: 1.2rem;
  margin-left: 2px;
}

.fz-stats span {
  color: var(--muted);
  font-size: .84rem;
}

/* ============ 通用章节 ============ */
.fz-sec {
  padding: 4.6rem 0;
}

.fz-sec.fz-alt {
  background: var(--bg2);


}

.fz-sec-head {
  display: grid;
  grid-template-columns: 90px 1fr auto;

  align-items: baseline;
  margin-bottom: 1.8rem;
}

.fz-num {
  font-family: var(--mono);
  font-size: 3rem;
  font-weight: 700;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--accent);
  opacity: .9;
}

.fz-sec-head h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
}

.fz-sec-head h2 em {
  font-style: normal;
  font-family: var(--mono);
  font-size: .76rem;
  letter-spacing: .16em;
  color: var(--muted);
  margin-left: .8rem;
  font-weight: 500;
}

.fz-sec-more {
  white-space: nowrap;
  font-size: .88rem;
  align-self: center;
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  color: var(--muted);
  border-bottom: 1px dashed var(--rule);
  padding-bottom: .15rem;
}

.fz-sec-more:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}



.fz-prose p {
  color: var(--muted);
  margin-bottom: 1.1rem;
}

.fz-prose p b {
  color: var(--ink);
}

.fz-prose .fz-kw {
  color: var(--ink);
  font-weight: 700;
}

.fz-prose h3 {
  font-size: 1.22rem;
  font-weight: 700;
  color: var(--ink);
  margin: 2.4rem 0 .9rem;
  padding-left: .7rem;
  border-left: 3px solid var(--accent);
}

.fz-prose h3+p {
  margin-top: 0;
}

.ref {
  font-size: .68rem;
  color: var(--accent2);
  vertical-align: super;
  margin: 0 1px;
}

.fz-muted-p {
  font-size: .9rem;
}

.fz-muted-p::before {
  content: '※ ';
  color: var(--accent2);
}

/* ============ 表格 ============ */
.fz-table-wrap {
  margin: 1.4rem 0 1.8rem;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  overflow-x: auto;
}

.fz-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
  font-size: .92rem;
}

.fz-table th,
.fz-table td {
  padding: .85rem 1.2rem;
  text-align: left;
  border-bottom: 1px solid var(--rule);
}

.fz-table tbody tr:last-child td {
  border-bottom: none;
}

.fz-table thead th {
  color: var(--accent2);
  font-weight: 600;
  font-size: .84rem;
  letter-spacing: .06em;
  border-bottom: 2px solid var(--accent);
  white-space: nowrap;
}

.fz-table td:first-child {
  color: var(--muted);
  white-space: nowrap;
}

.fz-table td:not(:first-child):nth-child(2),
.fz-table td:nth-child(n+3) {
  color: var(--muted);
}

.fz-table td b {
  color: var(--ink);
}

.fz-table .hl {
  color: var(--accent);
  background: rgba(254, 44, 85, 0.04);
  border-left: 1px solid var(--rule);
  border-right: 1px solid var(--rule);
}

.fz-table .hl b {
  color: var(--accent);
}

.fz-table td.mono {
  font-size: .86rem;
}

/* ============ 数据图表 ============ */
.fz-chart-wrap {
  margin: 1.8rem 0 2rem;
  padding: 1.4rem .6rem .7rem;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}

.fz-chart {
  width: 100%;
  min-height: 340px;
}

.fig-cap {
  text-align: center;
  color: var(--muted);
  font-size: .76rem;
  padding: .6rem .6rem .2rem;
}

/* ============ 新闻列表（平铺） ============ */
.fz-news-list {
  list-style: none;

}

.fz-news-list li {
  border-bottom: 1px dashed var(--rule);
}

.fz-news-list li:last-child {
  border-bottom: none;
}

.fz-news-list a {
  display: flex;
  align-items: baseline;

  padding: .95rem 0;
  color: var(--ink);
}

.fz-news-list time {
  flex: 0 0 88px;
  font-size: .8rem;
  color: var(--muted);
}

.fz-news-list .tag {
  flex: 0 0 auto;
  font-size: .72rem;
  color: var(--accent2);
  border: 1px solid rgba(37, 244, 238, 0.35);
  background: var(--accent2-soft);
  padding: .06rem .55rem;
  border-radius: 999px;
}

.fz-news-list b {
  flex: 1;
  font-size: .96rem;
  font-weight: 600;
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.fz-news-list i {
  flex: 0 0 auto;
  color: var(--rule);
  font-size: .85rem;
  transition: color .2s, transform .2s;
}

.fz-news-list a:hover b {
  color: var(--accent);
}

.fz-news-list a:hover i {
  color: var(--accent);
  transform: translateX(4px);
}

.fz-news-empty {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--muted);
  border-top: 1px dashed var(--rule);
  border-bottom: 1px dashed var(--rule);
  max-width: 960px;
}

.fz-news-empty i {
  font-size: 1.6rem;
  margin-bottom: .8rem;
  display: block;
  color: var(--accent2);
}

/* ============ FAQ（平铺 Q/A） ============ */


.fz-faq details {
  border-bottom: 1px dashed var(--rule);
}

.fz-faq details:first-child {
  border-top: 1px dashed var(--rule);
}

.fz-faq summary {
  list-style: none;
  cursor: pointer;
  user-select: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem .2rem;
  font-weight: 600;
  font-size: 1rem;
  color: var(--ink);
}

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

.fz-faq summary i {
  color: var(--rule);
  transition: transform .25s, color .25s;
  font-size: .8rem;
}

.fz-faq details[open] summary {
  color: var(--accent);
}

.fz-faq details[open] summary i {
  transform: rotate(180deg);
  color: var(--accent);
}

.faq-a {
  padding: 0 .2rem 1.3rem;
  color: var(--muted);
  font-size: .93rem;

}

/* ============ 结语清单 ============ */
.fz-end {
  text-align: center;
  padding: 4.6rem 0;
  background:
    radial-gradient(ellipse 55% 70% at 50% 115%, rgba(254, 44, 85, 0.14), transparent 65%),
    var(--bg2);
  border-top: 1px solid var(--rule);
}

.fz-end h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 1.8rem;
}

.fz-check-list {
  list-style: none;
  display: inline-flex;
  flex-direction: column;
  gap: .7rem;
  text-align: left;
  color: var(--muted);
  font-size: .98rem;
}

.fz-check-list li::before {
  content: '✓  ';
  color: var(--accent2);
  font-weight: 700;
}

.fz-end-note {
  margin-top: 2rem;
  color: var(--muted);
}

/* ============ 参考与来源 ============ */
.fz-refs {
  background: var(--bg);
  border-top: 1px solid var(--rule);
  padding: 3.4rem 0 0;
}

.fz-refs h2 {
  font-size: 1.25rem;
  margin-bottom: 1.4rem;
}

.fz-refs h2 em {
  font-style: normal;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--muted);
  margin-left: .7rem;
}

.fz-refs ol {
  list-style: none;
  counter-reset: src;
  max-width: 960px;
}

.fz-refs li {
  counter-increment: src;
  display: flex;
  gap: .8rem;
  align-items: baseline;
  color: var(--muted);
  font-size: .84rem;
  padding: .4rem 0;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.06);
}

.fz-refs li::before {
  content: "[" counter(src) "]";
  color: var(--accent2);
  flex: 0 0 auto;
}

.fz-refs-note {
  color: var(--muted);
  font-size: .8rem;
  margin-top: 1.4rem;
}

/* ============ 页脚 ============ */
.fz-footer {
  background: var(--bg);
}

.fz-footer-in {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.4rem;
  padding: 2.4rem 1.25rem;
  border-top: 1px solid var(--rule);
}

.f-brand img {
  height: 26px;
  margin-bottom: 1rem;
}

.f-brand p {
  color: var(--muted);
  font-size: .88rem;
  max-width: 380px;
}

.f-col h4 {
  font-size: .9rem;
  margin-bottom: .9rem;
  color: var(--ink);
}

.f-col a,
.f-col span {
  display: block;
  color: var(--muted);
  font-size: .86rem;
  padding: .25rem 0;
}

.f-col a:hover {
  color: var(--accent);
}

.fz-copy {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: .6rem;
  padding-top: 1.3rem;
  padding-bottom: 1.5rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: .8rem;
}

/* ============ 返回顶部 ============ */
.fz-backtop {
  position: fixed;
  right: 1.4rem;
  bottom: 1.6rem;
  z-index: 80;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--rule);
  background: var(--bg3);
  color: var(--ink);
  font-size: .95rem;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity .25s, transform .25s, border-color .2s, color .2s;
}

.fz-backtop.show {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.fz-backtop:hover {
  color: var(--accent);
  border-color: var(--accent);
}

/* ============ 滚动渐显 ============ */
.fz-reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .6s ease, transform .6s ease;
}

.fz-reveal.in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .fz-reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  html {
    scroll-behavior: auto;
  }
}

/* ============ 响应式 ============ */
@media (max-width: 920px) {
  .fz-sec-head {
    grid-template-columns: 64px 1fr;
  }

  .fz-num {
    font-size: 2.2rem;
  }

  .fz-sec-more {
    grid-column: 2;
    justify-self: start;
  }

  .fz-anchors {
    display: none;
    position: absolute;
    top: 58px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--bg2);
    border-bottom: 1px solid var(--rule);
    padding: .5rem 1.2rem 1rem;
  }

  .fz-anchors.open {
    display: flex;
  }

  .fz-anchors a {
    padding: .7rem 0;
    border-bottom: 1px solid var(--rule);
  }

  .fz-anchors a.on {
    border-bottom-color: var(--accent);
  }

  .fz-burger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .fz-topbar-in {
    position: relative;
  }

  .fz-footer-in {
    grid-template-columns: 1fr 1fr;
  }

  .fz-news-list b {
    -webkit-line-clamp: 2;
  }
}

@media (max-width: 640px) {
  .fz-hero {
    padding: 3.6rem 0 3rem;
  }

  .fz-sec {
    padding: 3.2rem 0;
  }

  .fz-sec-head {
    grid-template-columns: 1fr;
  }

  .fz-stats {
    gap: 1rem 2rem;
  }

  .fz-news-list time {
    display: none;
  }

  .fz-footer-in {
    grid-template-columns: 1fr;
    gap: 1.6rem;
  }

  .fz-copy {
    flex-direction: column;
  }

  .faq-a {
    max-width: 100%;
  }
}