:root {
  --color-primary: #0A1B3A;
  --color-green: #00FF88;
  --color-orange: #FF6A00;
  --color-light: #F4F6F9;
  --color-white: #FFFFFF;
  --color-dark: #1A1D26;
  --color-gray: #8A8F98;
  --color-border: #2D3A4A;
  --color-gold: #FFD700;
  --font-heading: "Archivo Black", "Arial Black", sans-serif;
  --font-body: "Inter", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "Roboto Mono", "SF Mono", "Cascadia Mono", Consolas, monospace;
  --header-width: 280px;
  --transition: 160ms ease-out;
  --shadow: 0 12px 30px rgba(10, 27, 58, 0.12);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  margin-left: var(--header-width);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  background: var(--color-light);
  color: var(--color-dark);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 900;
  line-height: 1.15;
  margin: 0 0 0.8em;
  color: var(--color-primary);
}

p {
  margin: 0 0 1rem;
}

ul, ol {
  list-style: none;
  padding: 0;
  margin: 0;
}

a {
  color: var(--color-primary);
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

:focus-visible {
  outline: 3px solid var(--color-orange);
  outline-offset: 2px;
}

#main-content {
  display: block;
  min-height: 60vh;
}

.skip-link {
  position: fixed;
  top: -100%;
  left: 1rem;
  z-index: 3000;
  background: var(--color-green);
  color: var(--color-dark);
  padding: 0.75rem 1.25rem;
  font-weight: 700;
  text-decoration: none;
}

.skip-link:focus {
  top: 1rem;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-green), var(--color-orange));
  transform: scaleX(0);
  transform-origin: 0 0;
  z-index: 4000;
  pointer-events: none;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--header-width);
  height: 100vh;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  flex-direction: column;
  padding: 2rem 1.75rem 2rem;
  z-index: 1000;
  border-right: 1px solid var(--color-border);
  overflow-y: auto;
  background-image:
    linear-gradient(rgba(0, 255, 136, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 136, 0.08) 1px, transparent 1px);
  background-size: 24px 24px;
}

.site-header::after {
  content: "";
  position: absolute;
  right: -1px;
  top: 0;
  height: 100%;
  width: 4px;
  background: linear-gradient(to bottom, var(--color-green) 0%, var(--color-orange) 100%);
  opacity: 0.9;
  pointer-events: none;
}

.site-header__topbar {
  position: relative;
  z-index: 1;
}

.brand {
  display: inline-block;
  text-decoration: none;
  color: inherit;
}

.brand__mark {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--color-green);
  letter-spacing: 0.04em;
}

.brand__name {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 900;
  line-height: 1.1;
  margin-top: 0.2rem;
}

.brand__tag {
  display: inline-block;
  margin-top: 0.5rem;
  background: var(--color-orange);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  padding: 0.2rem 0.55rem;
  text-transform: uppercase;
}

.site-header__drawer {
  display: flex;
  flex-direction: column;
  flex: 1;
  margin-top: 2.5rem;
}

.site-nav__list {
  counter-reset: nav;
}

.site-nav__list li {
  position: relative;
  counter-increment: nav;
}

.site-nav__list li::before {
  content: counter(nav, decimal-leading-zero);
  position: absolute;
  right: 0.5rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.35);
  letter-spacing: 0.08em;
}

.site-nav__list a {
  display: block;
  padding: 0.8rem 2.5rem 0.8rem 1rem;
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  font-weight: 600;
  border-left: 2px solid transparent;
  transition:
    color var(--transition),
    background var(--transition),
    padding-left var(--transition),
    border-color var(--transition);
}

.site-nav__list a:hover {
  color: #fff;
  padding-left: 1.35rem;
  background: rgba(0, 255, 136, 0.06);
  border-left-color: var(--color-green);
}

.site-nav__list a[aria-current="page"] {
  color: var(--color-green);
  background: rgba(0, 255, 136, 0.1);
  border-left-color: var(--color-green);
}

.header-cta {
  margin-top: auto;
  padding-top: 2rem;
}

.header-cta .btn {
  width: 100%;
}

.header-meta {
  margin-top: 1rem;
  border-top: 1px solid var(--color-border);
  padding-top: 1rem;
  display: grid;
  gap: 0.25rem;
  font-size: 0.72rem;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.5);
}

.header-meta a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
}

.header-meta a:hover {
  color: var(--color-green);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  color: var(--color-green);
  cursor: pointer;
  padding: 0.5rem;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.nav-toggle__box {
  display: block;
  position: relative;
  width: 24px;
  height: 14px;
}

.nav-toggle__box span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition:
    transform var(--transition),
    opacity var(--transition);
}

.nav-toggle__box span:nth-child(1) {
  top: 0;
}

.nav-toggle__box span:nth-child(2) {
  top: 6px;
}

.nav-toggle__box span:nth-child(3) {
  top: 12px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__box span:nth-child(1) {
  top: 6px;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__box span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__box span:nth-child(3) {
  top: 6px;
  transform: rotate(-45deg);
}

.nav-toggle__label {
  font-family: var(--font-body);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
}

.site-footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.7);
  padding: 4rem 1.5rem 2rem;
  border-top: 4px solid var(--color-green);
}

.site-footer__grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 2.5rem;
}

.site-footer__block {
  display: grid;
  align-content: start;
  gap: 0.25rem;
}

.site-footer__brand .brand {
  margin-bottom: 1rem;
}

.site-footer .brand__name {
  color: #fff;
}

.site-footer__title {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-green);
  margin-bottom: 1rem;
}

.site-footer__links {
  display: grid;
  gap: 0.55rem;
}

.site-footer__links a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition:
    color var(--transition),
    padding-left var(--transition);
}

.site-footer__links a:hover {
  color: var(--color-green);
  padding-left: 0.3rem;
}

.site-footer__statement {
  color: rgba(255, 255, 255, 0.55);
  max-width: 34ch;
  font-size: 0.875rem;
  line-height: 1.7;
}

.site-footer__contact p {
  margin-bottom: 0.4rem;
  font-size: 0.85rem;
  line-height: 1.6;
  word-break: break-word;
}

.site-footer__contact a {
  color: var(--color-green);
  text-decoration: none;
}

.site-footer__icp {
  color: rgba(255, 255, 255, 0.4);
}

.site-footer__bottom {
  max-width: 1200px;
  margin: 3rem auto 0;
  border-top: 1px solid var(--color-border);
  padding-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
}

.site-footer__bottom p {
  margin: 0;
}

.nav-toggle__box {
  flex-shrink: 0;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section {
  padding: 4.5rem 1.5rem;
}

.section--tight {
  padding: 2rem 1.5rem;
}

.section--dark {
  background: var(--color-primary);
  color: #fff;
}

.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4,
.section--dark h5,
.section--dark h6 {
  color: #fff;
}

.section-label {
  font-family: var(--font-heading);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-orange);
  margin-bottom: 0.75rem;
}

.display-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 5rem);
  line-height: 1.02;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.section--dark .display-title {
  color: #fff;
}

.lead-text {
  font-size: 1.15rem;
  line-height: 1.75;
  color: var(--color-dark);
  max-width: 62ch;
}

.section--dark .lead-text {
  color: rgba(255, 255, 255, 0.8);
}

.overline {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-gray);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 1.6rem;
  border: 1px solid transparent;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.9rem;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition:
    background var(--transition),
    color var(--transition),
    border-color var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
}

.btn--primary {
  background: var(--color-green);
  color: var(--color-dark);
}

.btn--primary:hover {
  background: var(--color-orange);
  color: #fff;
}

.btn--ghost {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-primary);
}

.btn--ghost:hover {
  border-color: var(--color-green);
  color: var(--color-green);
}

.btn--orange {
  background: var(--color-orange);
  color: #fff;
}

.btn--orange:hover {
  background: var(--color-green);
  color: var(--color-dark);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 2rem;
  font-size: 0.85rem;
}

.breadcrumb li + li::before {
  content: "/";
  color: var(--color-border);
  margin-right: 0.5rem;
}

.breadcrumb a {
  color: var(--color-primary);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--color-orange);
}

.breadcrumb [aria-current="page"] {
  color: var(--color-gray);
}

.grid {
  display: grid;
  gap: 1.5rem;
}

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

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

.grid--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-green);
  box-shadow: 0 2px 8px rgba(10, 27, 58, 0.06);
  padding: 1.75rem;
  transition:
    border-color var(--transition),
    box-shadow var(--transition),
    transform var(--transition);
}

.card:hover {
  border-color: var(--color-green);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.card--orange {
  border-left-color: var(--color-orange);
}

.card--gold {
  border-left-color: var(--color-gold);
}

.card--dark {
  background: var(--color-primary);
  color: #fff;
  border-left-color: var(--color-orange);
}

.card__title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}

.card--dark .card__title {
  color: #fff;
}

.card__body {
  color: var(--color-dark);
  font-size: 0.95rem;
}

.card--dark .card__body {
  color: rgba(255, 255, 255, 0.8);
}

.card__meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-gray);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
}

.stat {
  background: var(--color-primary);
  color: #fff;
  padding: 1.75rem;
  border-bottom: 4px solid var(--color-orange);
}

.stat--green {
  border-bottom-color: var(--color-green);
}

.stat--gold {
  border-bottom-color: var(--color-gold);
}

.stat__value {
  font-family: var(--font-mono);
  font-size: 3rem;
  line-height: 1.1;
  color: var(--color-green);
}

.stat--gold .stat__value {
  color: var(--color-gold);
}

.stat__label {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.65);
  margin-top: 0.5rem;
}

.tag {
  display: inline-block;
  padding: 0.25rem 0.7rem;
  background: var(--color-gray);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.tag--green {
  background: var(--color-green);
  color: var(--color-dark);
}

.tag--orange {
  background: var(--color-orange);
  color: #fff;
}

.tag--gold {
  background: var(--color-gold);
  color: var(--color-dark);
}

.image-frame {
  position: relative;
  overflow: hidden;
  background: var(--color-primary);
  border: 1px solid var(--color-border);
}

.image-frame::before {
  content: "";
  display: block;
  padding-top: 56.25%;
}

.image-frame--portrait::before {
  padding-top: 125%;
}

.image-frame--square::before {
  padding-top: 100%;
}

.image-frame > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-frame__empty {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 1.2rem;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.4);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-border) 100%);
}

.image-frame__empty::after {
  content: "";
  position: absolute;
  left: -10%;
  top: 0;
  width: 120%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-green), var(--color-orange));
  transform: rotate(12deg);
  transform-origin: 0 0;
  opacity: 0.5;
  pointer-events: none;
}

.accordion {
  border: 1px solid var(--color-border);
  background: var(--color-white);
  margin-bottom: 1rem;
}

.accordion__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  padding: 1rem 1.25rem;
  background: transparent;
  border: 0;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--color-primary);
  text-align: left;
}

.accordion__trigger:hover {
  background: rgba(0, 255, 136, 0.08);
}

.accordion__trigger:focus-visible {
  outline-offset: -3px;
}

.accordion__icon {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  color: var(--color-orange);
  transition: transform var(--transition);
}

.accordion[data-open] .accordion__icon {
  transform: rotate(45deg);
}

.accordion__panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.accordion[data-open] .accordion__panel {
  max-height: 40rem;
}

.accordion__panel-content {
  padding: 0 1.25rem 1.25rem;
  color: var(--color-dark);
}

.to-top {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: var(--color-green);
  border: 1px solid var(--color-green);
  font-family: var(--font-mono);
  font-size: 1.25rem;
  cursor: pointer;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    opacity var(--transition),
    visibility var(--transition),
    background var(--transition),
    color var(--transition);
}

.to-top.is-visible {
  opacity: 1;
  visibility: visible;
}

.to-top:hover {
  background: var(--color-green);
  color: var(--color-dark);
}

@media (max-width: 991px) {
  .grid--4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 767px) {
  body {
    margin-left: 0;
  }

  .site-header {
    position: fixed;
    width: 100%;
    height: auto;
    padding: 0;
    border-right: 0;
    border-bottom: 3px solid var(--color-green);
    background-image: none;
    overflow: visible;
  }

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

  .site-header__topbar {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
  }

  .brand__mark {
    font-size: 1.1rem;
  }

  .brand__name {
    font-size: 1.3rem;
  }

  .brand__tag {
    font-size: 0.6rem;
    padding: 0.1rem 0.45rem;
  }

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

  .site-header__drawer {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin: 0;
    padding: 1rem 1.5rem 1.5rem;
    background: var(--color-primary);
    border-top: 1px solid var(--color-border);
    box-shadow: var(--shadow);
    max-height: calc(100vh - 70px);
    overflow-y: auto;
  }

  .site-header__drawer[data-open] {
    display: flex;
    flex-direction: column;
  }

  .site-header__drawer .header-cta {
    margin-top: 1.5rem;
  }

  .header-meta {
    margin-top: 1.5rem;
  }
}

@media (max-width: 600px) {
  .site-footer {
    padding: 3rem 1.25rem 1.5rem;
    text-align: center;
  }

  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .site-footer__bottom {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }
}

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

  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }

  .card:hover,
  .btn--primary:hover,
  .btn--orange:hover {
    transform: none;
  }
}