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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 1rem;
  line-height: 1.8;
  color: #FFFFFF;
  background-color: #0A1F44;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img,
svg,
video {
  max-width: 100%;
  display: block;
}

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

ul,
ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  background: none;
  border: none;
  color: inherit;
}

:focus-visible {
  outline: 2px solid #00FF88;
  outline-offset: 3px;
  border-radius: 2px;
}

::selection {
  background: #00FF88;
  color: #06122E;
}

:root {
  --deep-blue: #0A1F44;
  --deep-blue-light: #123B7A;
  --neon-green: #00FF88;
  --orange: #FF6B00;
  --ice-blue: #19B5E5;
  --deep-black-blue: #06122E;
  --gray-light: #F0F4F8;
  --white: #FFFFFF;
  --warning-yellow: #FFC857;
  --font-heading: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --container-max: 1240px;
  --radius: 10px;
  --shadow-card: 0 18px 40px rgba(0, 0, 0, 0.28);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 24px;
}

.skip-link {
  position: fixed;
  top: -56px;
  left: 20px;
  z-index: 120;
  padding: 10px 20px;
  background: var(--neon-green);
  color: var(--deep-black-blue);
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: 0 0 10px 10px;
  box-shadow: 0 8px 24px rgba(0, 255, 136, 0.35);
  transition: top 0.25s ease;
}

.skip-link:focus-visible {
  top: 0;
  color: var(--deep-black-blue);
  background: var(--neon-green);
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  z-index: 110;
  pointer-events: none;
  background: rgba(18, 59, 122, 0.35);
}

.scroll-progress__bar {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--neon-green) 0%, var(--ice-blue) 60%, var(--orange) 100%);
  transform-origin: 0 50%;
  transform: scaleX(0);
  transition: transform 0.08s linear;
}

.site-header {
  position: relative;
  z-index: 50;
  background:
    radial-gradient(ellipse at 84% 0%, rgba(25, 181, 229, 0.12) 0%, transparent 55%),
    radial-gradient(ellipse at 12% 100%, rgba(0, 255, 136, 0.06) 0%, transparent 45%),
    linear-gradient(145deg, #06122E 0%, #0A1F44 55%, #123B7A 100%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), 0 100%);
  padding-top: 20px;
  overflow: hidden;
}

.site-header__inner {
  position: relative;
  padding-bottom: 10px;
}

.site-header__top {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 76px;
}

.site-header__status {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px 5px 10px;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: rgba(240, 244, 248, 0.7);
  background: rgba(18, 59, 122, 0.45);
  border: 1px solid rgba(0, 255, 136, 0.28);
  border-radius: 999px;
  white-space: nowrap;
}

.site-header__status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--neon-green);
  box-shadow: 0 0 10px rgba(0, 255, 136, 0.7);
}

.site-brand {
  text-align: center;
}

.site-brand__link {
  display: inline-flex;
  align-items: baseline;
  justify-content: center;
  gap: 5px;
}

.site-brand__mark {
  display: inline-block;
  font-size: clamp(1.9rem, 5vw, 3rem);
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--white);
  transform: skewX(-8deg);
  line-height: 1;
}

.site-brand__cn {
  display: inline-block;
  font-size: clamp(1.3rem, 3.5vw, 2rem);
  font-weight: 600;
  color: var(--neon-green);
  letter-spacing: 0.04em;
  line-height: 1;
}

.site-brand__tagline {
  display: block;
  margin-top: 6px;
  font-size: 0.72rem;
  letter-spacing: 0.5em;
  text-transform: uppercase;
  color: var(--ice-blue);
}

.nav-toggle {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 0;
  background: rgba(18, 59, 122, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 8px;
  transition: border-color 0.25s ease, background 0.25s ease;
}

.nav-toggle:hover {
  border-color: rgba(0, 255, 136, 0.5);
}

.nav-toggle__bar {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--white);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle.is-open {
  background: rgba(0, 255, 136, 0.1);
  border-color: rgba(0, 255, 136, 0.4);
}

.nav-toggle.is-open .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-open .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-nav {
  margin-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.site-nav__list {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 56px;
  gap: 0;
}

.site-nav__item {
  height: 100%;
}

.site-nav__link {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding-inline: 20px;
  font-size: 0.95rem;
  font-weight: 500;
  color: rgba(240, 244, 248, 0.8);
  letter-spacing: 0.02em;
  transition: color 0.25s ease, background 0.25s ease;
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 0;
  height: 3px;
  background: var(--neon-green);
  transform: translateX(-50%);
  transition: width 0.25s ease;
}

.site-nav__link:hover {
  color: var(--neon-green);
  background: rgba(0, 255, 136, 0.05);
}

.site-nav__link:hover::after,
.site-nav__link[aria-current="page"]::after {
  width: 36px;
}

.site-nav__link[aria-current="page"] {
  color: var(--white);
  font-weight: 700;
}

.site-header__line {
  height: 2px;
  margin-top: 12px;
  border-radius: 2px;
  background: linear-gradient(90deg, transparent, rgba(0, 255, 136, 0.9) 30%, rgba(255, 107, 0, 0.9) 70%, transparent);
  opacity: 0.75;
}

.site-footer {
  position: relative;
  z-index: 5;
  margin-top: 56px;
  background:
    radial-gradient(ellipse at 90% 0%, rgba(0, 255, 136, 0.04) 0%, transparent 45%),
    linear-gradient(180deg, #06122E 0%, #070F26 100%);
  clip-path: polygon(0 0, 100% 24px, 100% 100%, 0 100%);
  padding: 76px 0 48px;
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 40px;
  align-items: start;
}

.site-footer__brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}

.site-footer__link {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
}

.site-footer__mark {
  display: inline-block;
  font-size: 1.9rem;
  font-weight: 800;
  color: var(--white);
  transform: skewX(-6deg);
  line-height: 1;
}

.site-footer__cn {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--neon-green);
  line-height: 1;
}

.site-footer__tagline {
  font-size: 0.85rem;
  color: rgba(240, 244, 248, 0.65);
  letter-spacing: 0.08em;
}

.site-footer__icp {
  font-size: 0.75rem;
  color: rgba(240, 244, 248, 0.5);
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding-top: 8px;
}

.site-footer__nav-link {
  position: relative;
  padding: 6px 0;
  font-size: 0.92rem;
  color: rgba(240, 244, 248, 0.8);
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.site-footer__nav-link:hover {
  color: var(--neon-green);
  border-color: var(--neon-green);
}

.site-footer__contact {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  padding-top: 8px;
  font-size: 0.9rem;
  color: rgba(240, 244, 248, 0.8);
  font-variant-numeric: tabular-nums;
}

.site-footer__contact-label {
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(240, 244, 248, 0.45);
  margin-bottom: 2px;
}

.site-footer__copy {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.8rem;
  color: rgba(240, 244, 248, 0.55);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 6px;
  padding: 16px 0 0;
  font-size: 0.84rem;
  color: rgba(240, 244, 248, 0.6);
}

.breadcrumb__item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.breadcrumb__item:not(:last-child)::after {
  content: "/";
  color: rgba(240, 244, 248, 0.3);
  margin-left: 6px;
}

.breadcrumb__link {
  color: var(--ice-blue);
  transition: color 0.2s ease;
}

.breadcrumb__link:hover {
  color: var(--neon-green);
}

.breadcrumb__item--current {
  color: var(--white);
  font-weight: 600;
}

.page-header {
  padding: 48px 0 28px;
}

.page-title {
  position: relative;
  display: inline-block;
  font-size: clamp(2.1rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: 0.01em;
  color: var(--white);
  transform: skewX(-5deg);
}

.page-title::before {
  content: "";
  position: absolute;
  left: -14px;
  top: 8px;
  bottom: 8px;
  width: 5px;
  background: var(--orange);
  border-radius: 3px;
  transform: translateX(-100%) skewX(-5deg);
}

.section {
  padding: 64px 0;
}

.section--tight {
  padding: 36px 0;
}

.section__header {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 36px;
}

.section__title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  line-height: 1.2;
  transform: skewX(-5deg);
  color: var(--white);
}

.section__desc {
  max-width: 560px;
  font-size: 1rem;
  color: rgba(240, 244, 248, 0.72);
  line-height: 1.9;
}

.kicker {
  display: inline-block;
  padding: 4px 14px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--neon-green);
  background: rgba(0, 255, 136, 0.1);
  border: 1px solid rgba(0, 255, 136, 0.3);
  border-radius: 999px;
}

.grid {
  display: grid;
  gap: 24px;
}

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

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

.card {
  position: relative;
  display: block;
  background: linear-gradient(145deg, rgba(18, 59, 122, 0.55), rgba(10, 31, 68, 0.85));
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow-card);
  transition: transform 0.3s var(--ease-out), border-color 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  border-color: rgba(0, 255, 136, 0.4);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.35);
}

.card__title {
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
  line-height: 1.4;
}

.card__desc {
  font-size: 0.9rem;
  color: rgba(240, 244, 248, 0.7);
  line-height: 1.8;
}

.panel {
  position: relative;
  background:
    radial-gradient(ellipse at 90% 10%, rgba(25, 181, 229, 0.12) 0%, transparent 50%),
    linear-gradient(145deg, var(--deep-blue-light) 0%, var(--deep-blue) 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 28px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), var(--shadow-card);
  overflow: hidden;
}

.panel::after {
  content: "";
  position: absolute;
  top: -35%;
  right: -15%;
  width: 45%;
  height: 80%;
  background: radial-gradient(ellipse at center, rgba(0, 255, 136, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.metric {
  display: inline-flex;
  flex-direction: column;
  gap: 2px;
  min-width: 140px;
  padding: 14px 18px;
  background: rgba(6, 18, 46, 0.55);
  border-left: 3px solid var(--neon-green);
  border-radius: 0 10px 10px 0;
}

.metric__value {
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--neon-green);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.metric__label {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: rgba(240, 244, 248, 0.6);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 30px;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.4;
  border-radius: 6px;
  border: 2px solid transparent;
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease;
}

.btn--primary {
  background: var(--neon-green);
  color: var(--deep-black-blue);
  box-shadow: 0 8px 24px rgba(0, 255, 136, 0.25);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0, 255, 136, 0.35);
}

.btn--ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(0, 255, 136, 0.6);
}

.btn--ghost:hover {
  background: rgba(0, 255, 136, 0.1);
  border-color: var(--neon-green);
  transform: translateY(-2px);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  font-size: 0.78rem;
  line-height: 1.5;
  border-radius: 5px;
  background: rgba(255, 107, 0, 0.12);
  color: var(--orange);
  border: 1px solid rgba(255, 107, 0, 0.3);
}

.tag--green {
  background: rgba(0, 255, 136, 0.1);
  color: var(--neon-green);
  border-color: rgba(0, 255, 136, 0.3);
}

.tag--blue {
  background: rgba(25, 181, 229, 0.1);
  color: var(--ice-blue);
  border-color: rgba(25, 181, 229, 0.3);
}

.prose {
  max-width: 70ch;
  color: rgba(240, 244, 248, 0.85);
}

.prose h2 {
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.3;
  margin: 2em 0 0.7em;
  transform: skewX(-5deg);
  color: var(--white);
}

.prose h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 1.5em 0 0.5em;
  color: var(--white);
}

.prose p {
  margin-bottom: 1.25em;
  line-height: 1.95;
}

.prose ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 1.25em;
}

.prose ul li {
  position: relative;
  padding-left: 22px;
}

.prose ul li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.68em;
  width: 9px;
  height: 9px;
  background: var(--neon-green);
  border-radius: 2px;
  transform: skewX(-12deg);
}

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.6s ease, transform 0.6s var(--ease-out);
  will-change: opacity, transform;
}

.reveal.is-revealed {
  opacity: 1;
  transform: none;
}

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

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .card,
  .btn,
  .nav-toggle,
  .site-nav__link,
  .site-footer__nav-link {
    transition: none;
  }
}

@media (max-width: 1024px) {
  .grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .site-footer__inner {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .site-footer__brand {
    grid-column: 1 / -1;
  }

  .site-footer__copy {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .container {
    padding-inline: 20px;
  }

  .site-header {
    clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), 0 100%);
    padding-top: 14px;
  }

  .site-header__top {
    min-height: 64px;
  }

  .site-header__status {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    display: none;
    margin-top: 14px;
    border-top: none;
    border-bottom: none;
  }

  .site-nav[data-open="true"],
  .site-nav.is-open {
    display: block;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    height: auto;
    padding: 6px 0 12px;
    gap: 2px;
  }

  .site-nav__item {
    height: auto;
  }

  .site-nav__link {
    justify-content: center;
    height: 46px;
    padding-inline: 16px;
    font-size: 1rem;
    border-radius: 6px;
    background: rgba(18, 59, 122, 0.35);
  }

  .site-nav__link::after {
    display: none;
  }

  .site-nav__link:hover {
    background: rgba(0, 255, 136, 0.1);
  }

  .site-header__line {
    display: none;
  }

  .site-footer {
    clip-path: polygon(0 0, 100% 12px, 100% 100%, 0 100%);
    padding-top: 56px;
    margin-top: 32px;
  }

  .site-footer__inner {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .site-footer__brand {
    grid-column: auto;
  }

  .site-footer__links {
    justify-content: flex-start;
    gap: 14px 22px;
  }

  .site-footer__contact {
    align-items: flex-start;
  }

  .site-footer__copy {
    grid-column: auto;
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin-top: 24px;
  }

  .grid--2,
  .grid--3 {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 40px 0;
  }

  .page-header {
    padding: 32px 0 20px;
  }

  .breadcrumb {
    padding-top: 10px;
  }
}

@media (max-width: 480px) {
  .site-brand__tagline {
    letter-spacing: 0.3em;
  }

  .nav-toggle {
    width: 38px;
    height: 38px;
  }

  .site-nav__link {
    height: 42px;
  }

  .btn {
    width: 100%;
    padding-inline: 16px;
  }
}