:root {
  --bg0: #070b13;
  --bg1: #070b13;
  --bg2: #070b13;
  --surface: rgba(255, 255, 255, 0.04);
  --surface2: rgba(255, 255, 255, 0.06);
  --stroke: rgba(255, 255, 255, 0.08);
  --stroke2: rgba(10, 132, 255, 0.22);
  --text: rgba(245, 248, 255, 0.92);
  --muted: rgba(245, 248, 255, 0.68);
  --faint: rgba(245, 248, 255, 0.5);
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.42);
  --shadow2: 0 12px 26px rgba(0, 0, 0, 0.34);
  --glow: 0 0 0 1px rgba(255, 255, 255, 0.06);
  --a0: #7cd4ff;
  --a1: #7d6bff;
  --a2: #ffd479;
  --a3: #42ffa6;
  --brand: #0a84ff;
  --brand2: rgba(10, 132, 255, 0.18);
  --cta: rgba(245, 248, 255, 0.92);
  --ctaText: rgba(7, 11, 19, 0.96);
  --ctaHover: rgba(245, 248, 255, 0.84);
  --r0: 14px;
  --r1: 18px;
  --r2: 22px;
  --w: 1180px;
  --pad: 26px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.6;
  letter-spacing: 0.2px;
  background: radial-gradient(circle at 50% -10%, rgba(10, 132, 255, 0.18), transparent 55%),
    linear-gradient(180deg, var(--bg0), var(--bg1));
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(circle at 30% 0%, rgba(255, 255, 255, 0.05), transparent 55%),
    radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.03), transparent 55%);
  opacity: 0.55;
  filter: blur(0px);
  mask-image: radial-gradient(circle at 50% 0%, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0) 70%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(circle at 50% 10%, rgba(10, 132, 255, 0.14), transparent 58%);
  filter: blur(26px);
  opacity: 0.65;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(var(--w), calc(100% - 40px));
  margin: 0 auto;
}

.skip {
  position: absolute;
  left: -999px;
  top: 12px;
  padding: 12px 14px;
  border-radius: 999px;
  background: rgba(9, 13, 22, 0.96);
  border: 1px solid rgba(124, 212, 255, 0.28);
  box-shadow: var(--shadow2);
}

.skip:focus {
  left: 14px;
  z-index: 999;
}

.top {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7, 11, 19, 0.78);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(16px);
}

.top__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 170px;
}

.brand__mark {
  width: 36px;
  height: 36px;
  border-radius: 14px;
  background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.65), rgba(255, 255, 255, 0) 55%),
    linear-gradient(135deg, rgba(124, 212, 255, 0.95), rgba(125, 107, 255, 0.92));
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.52);
}

.brand__text {
  font-family: "ZCOOL XiaoWei", "Noto Sans SC", serif;
  font-size: 18px;
  letter-spacing: 0.8px;
  color: rgba(255, 255, 255, 0.96);
}

.nav {
  display: flex;
  gap: 12px;
  align-items: center;
}

.nav__link {
  position: relative;
  padding: 10px 12px;
  border-radius: 12px;
  color: rgba(245, 248, 255, 0.72);
  border: 1px solid transparent;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease;
}

.nav__link:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.92);
}

.nav__link[aria-current="page"] {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.96);
}

.nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 6px;
  height: 2px;
  border-radius: 999px;
  background: var(--brand);
  opacity: 0.9;
}

.menu {
  display: none;
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(14, 20, 36, 0.7);
  padding: 10px 12px;
  border-radius: 999px;
  cursor: pointer;
}

.menu__bar {
  display: block;
  width: 22px;
  height: 2px;
  background: rgba(245, 248, 255, 0.84);
}

.menu__bar + .menu__bar {
  margin-top: 6px;
  opacity: 0.72;
}

.drawer {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(7, 11, 19, 0.78);
  backdrop-filter: blur(18px);
}

.drawer__inner {
  padding: 14px 0 18px;
  display: grid;
  gap: 10px;
}

.drawer__link {
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(14, 20, 36, 0.7);
  color: rgba(245, 248, 255, 0.88);
}

main {
  position: relative;
  z-index: 1;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 88px 0 54px;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: start;
  width: min(920px, 100%);
  margin: 0 auto;
}

.hero__copy {
  text-align: center;
}

.kicker {
  margin: 0 0 14px;
  font-weight: 650;
  color: rgba(245, 248, 255, 0.64);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-size: 12px;
}

.hero__title {
  margin: 0;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(34px, 4.6vw, 58px);
  line-height: 1.04;
  letter-spacing: -0.2px;
  color: rgba(255, 255, 255, 0.98);
}

.hero__lead {
  margin: 16px 0 22px;
  color: rgba(245, 248, 255, 0.7);
  max-width: 70ch;
  font-size: 17px;
}

.hero__cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 24px;
  justify-content: center;
}

.cta-row {
  margin-top: 18px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.04);
  color: rgba(245, 248, 255, 0.92);
  font-weight: 700;
  cursor: pointer;
  transition: transform 140ms ease, background 160ms ease, border-color 160ms ease;
}

.btn:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.22);
}

.btn--primary {
  border-color: rgba(255, 255, 255, 0.16);
  background: var(--cta);
  color: var(--ctaText);
}

.btn--primary:hover {
  background: var(--ctaHover);
}

.btn--ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.12);
  color: rgba(245, 248, 255, 0.86);
}

.btn--text {
  padding: 10px 4px;
  background: transparent;
  border-color: transparent;
  color: rgba(245, 248, 255, 0.72);
  font-weight: 750;
}

.btn--text:hover {
  transform: none;
  background: transparent;
  border-color: transparent;
  color: rgba(10, 132, 255, 0.96);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
}

.metrics__item {
  padding: 14px 14px;
  border-radius: var(--r1);
  background: rgba(12, 18, 32, 0.74);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow2);
}

.metrics dt {
  font-size: 12px;
  color: rgba(245, 248, 255, 0.52);
  margin-bottom: 6px;
}

.metrics dd {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  color: rgba(245, 248, 255, 0.92);
}

.panel {
  border-radius: var(--r2);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(14, 20, 36, 0.78);
  box-shadow: var(--glow);
  overflow: hidden;
  position: relative;
}

.panel::before {
  content: "";
  position: absolute;
  inset: -2px;
  background: radial-gradient(circle at 10% 10%, rgba(124, 212, 255, 0.28), transparent 40%),
    radial-gradient(circle at 90% 30%, rgba(125, 107, 255, 0.24), transparent 42%),
    radial-gradient(circle at 60% 100%, rgba(255, 212, 121, 0.18), transparent 44%);
  opacity: 0.85;
  filter: blur(18px);
  pointer-events: none;
}

.panel__top {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 18px 18px 0;
}

.chip {
  padding: 8px 12px;
  font-size: 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(7, 11, 19, 0.6);
  color: rgba(245, 248, 255, 0.78);
  letter-spacing: 0.7px;
}

.chip--b {
  border-color: rgba(124, 212, 255, 0.28);
}

.chip--c {
  border-color: rgba(125, 107, 255, 0.28);
}

.panel__body {
  position: relative;
  padding: 18px;
}

.panel__headline {
  margin: 10px 0 10px;
  font-size: 18px;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.96);
}

.panel__desc {
  margin: 0 0 14px;
  color: rgba(245, 248, 255, 0.7);
}

.panel__list {
  margin: 0;
  padding: 0 0 0 18px;
  color: rgba(245, 248, 255, 0.84);
}

.panel__list li {
  margin: 7px 0;
}

.section {
  padding: 72px 0;
}

.section--alt {
  background: rgba(255, 255, 255, 0.02);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.section__head {
  margin-bottom: 18px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.section__title {
  margin: 0;
  font-family: "ZCOOL XiaoWei", "Noto Sans SC", serif;
  font-size: 30px;
  letter-spacing: 0.3px;
  color: rgba(255, 255, 255, 0.98);
}

.section__subtitle {
  margin: 0;
  color: rgba(245, 248, 255, 0.7);
  max-width: 64ch;
}

.grid {
  display: grid;
  gap: 14px;
}

.grid--2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

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

.card,
.tile,
.list__item {
  padding: var(--pad);
  border-radius: var(--r2);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.035);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.24);
}

.card--glow {
  border-color: rgba(10, 132, 255, 0.22);
  background: rgba(255, 255, 255, 0.045);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.26);
}

.card__title,
.tile__title,
.list__k {
  margin: 0 0 10px;
  color: rgba(255, 255, 255, 0.96);
  font-size: 16px;
  font-weight: 800;
}

.card__text,
.tile__desc,
.list__v {
  margin: 0;
  color: rgba(245, 248, 255, 0.72);
}

.divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.08);
  margin: 16px 0;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag {
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(124, 212, 255, 0.26);
  background: rgba(124, 212, 255, 0.12);
  color: rgba(245, 248, 255, 0.9);
  font-size: 13px;
}

.tag--b {
  border-color: rgba(125, 107, 255, 0.26);
  background: rgba(125, 107, 255, 0.12);
}

.tag--c {
  border-color: rgba(255, 212, 121, 0.28);
  background: rgba(255, 212, 121, 0.1);
}

.list {
  display: grid;
  gap: 12px;
}

.list__item {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 12px;
  padding: 18px;
}

.tile {
  padding: 22px;
}

.tile__title {
  font-size: 18px;
}

.tile__bullets {
  margin: 0;
  padding: 0 0 0 18px;
  color: rgba(245, 248, 255, 0.84);
}

.tile__bullets li {
  margin: 7px 0;
}

.hint {
  margin: 10px 0 0;
  color: rgba(245, 248, 255, 0.54);
  font-size: 13px;
}

.kv {
  display: grid;
  gap: 10px;
}

.kv__row {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 10px;
  align-items: start;
}

.kv__k {
  color: rgba(245, 248, 255, 0.62);
}

.kv__v {
  color: rgba(245, 248, 255, 0.92);
}

.source-note {
  margin-top: 20px;
  color: rgba(245, 248, 255, 0.56);
  font-size: 14px;
}

.footer {
  position: relative;
  z-index: 1;
  padding: 22px 0 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(7, 11, 19, 0.7);
  backdrop-filter: blur(16px);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.footer__brand {
  font-weight: 800;
  color: rgba(255, 255, 255, 0.96);
}

.footer__meta {
  color: rgba(245, 248, 255, 0.62);
  font-size: 13px;
  margin-top: 2px;
}

.to-top {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0;
  border-radius: 0;
  border: none;
  background: transparent;
  color: rgba(245, 248, 255, 0.62);
  font-weight: 750;
}

.to-top::before {
  content: "↑";
  display: inline-block;
  width: auto;
  height: auto;
  line-height: 1;
  text-align: center;
  border-radius: 0;
  border: none;
  background: transparent;
  color: rgba(245, 248, 255, 0.62);
}

.to-top:hover {
  color: rgba(10, 132, 255, 0.96);
}

.to-top:focus-visible {
  outline: 2px solid rgba(10, 132, 255, 0.6);
  outline-offset: 4px;
  border-radius: 8px;
}

.page-hero {
  padding: 54px 0 18px;
}

.page-hero__kicker {
  margin: 0 0 10px;
  color: rgba(245, 248, 255, 0.6);
  letter-spacing: 1.3px;
  font-size: 12px;
  text-transform: uppercase;
}

.page-hero__title {
  margin: 0;
  font-family: "ZCOOL XiaoWei", "Noto Sans SC", serif;
  font-size: clamp(28px, 3.5vw, 44px);
  line-height: 1.12;
  color: rgba(255, 255, 255, 0.98);
}

.page-hero__lead {
  margin: 12px 0 0;
  color: rgba(245, 248, 255, 0.72);
  max-width: 70ch;
}

.page-hero__badges {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.badge {
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(7, 11, 19, 0.44);
  color: rgba(245, 248, 255, 0.84);
  font-size: 13px;
}

.table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  border-radius: var(--r2);
  border: 1px solid rgba(255, 255, 255, 0.09);
  background: rgba(14, 20, 36, 0.72);
  box-shadow: var(--shadow2);
}

.table th,
.table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.table th {
  color: rgba(255, 255, 255, 0.94);
  font-weight: 800;
  background: rgba(7, 11, 19, 0.38);
}

.table td {
  color: rgba(245, 248, 255, 0.74);
}

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

@media (max-width: 980px) {
  .hero__grid {
    grid-template-columns: 1fr;
  }

  .metrics {
    grid-template-columns: 1fr;
  }

  .grid--3 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 840px) {
  .nav {
    display: none;
  }

  .menu {
    display: inline-flex;
    flex-direction: column;
  }

  .grid--2 {
    grid-template-columns: 1fr;
  }

  .list__item {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .btn {
    transition: none;
  }

  .nav__link {
    transition: none;
  }
}