:root {
  --w-bg: #0B1B2B;
  --w-bg-deep: #081420;
  --w-panel: #123047;
  --w-panel-2: #0E2438;
  --w-accent: #FF4D2E;
  --w-accent-light: #FF7A45;
  --w-accent-soft: rgba(255, 77, 46, 0.14);
  --w-line: #9AA7B4;
  --w-line-soft: rgba(154, 167, 180, 0.28);
  --w-light-bg: #F5F7FA;
  --w-white: #FFFFFF;
  --w-text: #E7EDF3;
  --w-text-dim: #9AA7B4;
  --w-text-dark: #1B2B3A;
  --w-font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --w-content-width: 1200px;
  --w-radius: 16px;
  --w-radius-sm: 8px;
  --w-shadow: 0 18px 50px rgba(0, 0, 0, 0.3);
  --w-shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.12);
  --w-header-h: 76px;
  --w-transition: 260ms cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

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

body {
  font-family: var(--w-font-sans);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.75;
  background: var(--w-bg);
  color: var(--w-text);
  -webkit-text-size-adjust: 100%;
}

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

ul,
ol {
  list-style: none;
}

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

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

:focus-visible {
  outline: 3px solid var(--w-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

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

.section {
  padding: 72px 0;
}

.section--tight {
  padding: 40px 0;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 2000;
  background: var(--w-accent);
  color: #fff;
  padding: 10px 18px;
  border-radius: var(--w-radius-sm);
  font-weight: 600;
  font-size: 14px;
  transform: translateY(-160%);
  transition: transform var(--w-transition);
}

.skip-link:focus {
  transform: translateY(0);
}

.reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  z-index: 1000;
  background: linear-gradient(90deg, var(--w-accent), var(--w-accent-light));
  border-radius: 0 3px 3px 0;
  pointer-events: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  height: var(--w-header-h);
  background: rgba(11, 27, 43, 0.82);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--w-line-soft);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 100%;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  position: relative;
}

.brand__logo {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--w-accent-light), var(--w-accent));
  color: #fff;
  font-weight: 800;
  font-size: 24px;
  border-radius: 12px 12px 12px 3px;
  box-shadow: 0 8px 24px rgba(255, 77, 46, 0.3);
  letter-spacing: -0.04em;
}

.brand__text {
  font-weight: 800;
  font-size: 20px;
  letter-spacing: 0.02em;
  white-space: nowrap;
  color: var(--w-white);
}

.brand__tagline {
  display: none;
  font-size: 13px;
  color: var(--w-text-dim);
  border-left: 1px solid var(--w-line);
  padding-left: 12px;
  white-space: nowrap;
}

.site-nav {
  display: none;
}

.nav-list {
  display: flex;
  align-items: center;
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--w-text);
  border-radius: 100px;
  transition: background var(--w-transition), color var(--w-transition);
}

.nav-link:hover {
  color: var(--w-white);
  background: rgba(255, 255, 255, 0.06);
}

.nav-link[aria-current="page"] {
  color: var(--w-white);
  background: var(--w-accent);
  box-shadow: 0 4px 16px rgba(255, 77, 46, 0.32);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--w-line-soft);
  border-radius: 100px;
  color: var(--w-text);
  transition: background var(--w-transition), border-color var(--w-transition);
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--w-line);
}

.toggle-label {
  font-size: 14px;
  font-weight: 500;
}

.toggle-bars {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 18px;
}

.nav-toggle__bar {
  width: 18px;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform var(--w-transition), opacity var(--w-transition);
}

.site-header[data-open="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.site-header[data-open="true"] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.site-header[data-open="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

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

.site-header[data-open="true"] .nav-list {
  flex-direction: column;
  align-items: stretch;
  padding: 8px;
}

.site-header[data-open="true"] .nav-link {
  border-radius: 10px;
  padding: 12px 16px;
}

@media (min-width: 960px) {
  .brand__tagline {
    display: inline-block;
  }

  .site-nav {
    display: block;
  }

  .nav-toggle {
    display: none;
  }
}

.site-footer {
  position: relative;
  background: var(--w-bg-deep);
  border-top: 1px solid var(--w-line-soft);
  margin-top: 72px;
  overflow: hidden;
}

.footer-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  padding-block: 56px 32px;
}

.footer-brand-block {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.brand--footer {
  flex-wrap: wrap;
}

.footer-description {
  max-width: 360px;
  font-size: 14px;
  color: var(--w-text-dim);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-link {
  position: relative;
  font-size: 14px;
  color: var(--w-text);
  transition: color var(--w-transition);
}

.footer-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: var(--w-accent);
  transition: width var(--w-transition);
}

.footer-link:hover {
  color: var(--w-accent-light);
}

.footer-link:hover::after {
  width: 100%;
}

.footer-heading {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--w-white);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-heading::before {
  content: "";
  width: 14px;
  height: 2px;
  background: var(--w-accent);
  border-radius: 3px;
}

.footer-contact-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.contact-label {
  display: inline-block;
  font-size: 12px;
  color: var(--w-text-dim);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 2px;
}

.contact-value {
  display: block;
  font-size: 15px;
  color: var(--w-white);
  transition: color var(--w-transition);
}

a.contact-value:hover {
  color: var(--w-accent-light);
}

.footer-cert-block {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-note {
  font-size: 14px;
  color: var(--w-text-dim);
  line-height: 1.7;
  border-left: 3px solid var(--w-accent);
  padding-left: 14px;
}

.footer-ico {
  display: inline-block;
  width: fit-content;
  font-size: 13px;
  color: var(--w-text-dim);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--w-line-soft);
  padding: 4px 12px;
  border-radius: 100px;
}

.footer-copyright {
  font-size: 13px;
  color: var(--w-text-dim);
}

.footer-accent {
  height: 4px;
  background: linear-gradient(90deg, var(--w-accent) 0%, var(--w-accent-light) 60%, transparent 100%);
}

@media (min-width: 760px) {
  .footer-container {
    grid-template-columns: 1.2fr 1fr;
  }

  .footer-cert-block {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1080px) {
  .footer-container {
    grid-template-columns: 1.4fr 1fr 1fr;
  }

  .footer-cert-block {
    grid-column: auto;
  }
}

.page-headline {
  padding: 68px 0 40px;
  border-bottom: 1px solid var(--w-line-soft);
  margin-bottom: 48px;
}

.page-headline__index {
  font-size: 14px;
  letter-spacing: 0.22em;
  color: var(--w-accent-light);
  margin-bottom: 8px;
  font-weight: 600;
}

.page-headline h1 {
  font-size: 48px;
  line-height: 1.1;
  font-weight: 800;
  color: var(--w-white);
  letter-spacing: -0.02em;
}

.page-headline__summary {
  margin-top: 14px;
  max-width: 560px;
  color: var(--w-text-dim);
  font-size: 16px;
}

.eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--w-accent-light);
}

.display-number {
  font-size: 56px;
  line-height: 1;
  font-weight: 800;
  color: var(--w-white);
  letter-spacing: -0.03em;
}

.badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 100px;
  background: var(--w-accent-soft);
  color: var(--w-accent-light);
  border: 1px solid rgba(255, 77, 46, 0.25);
}

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  transition: transform var(--w-transition), box-shadow var(--w-transition), background var(--w-transition), color var(--w-transition);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  background: var(--w-accent);
  color: #fff;
  box-shadow: 0 8px 26px rgba(255, 77, 46, 0.35);
}

.btn--primary:hover {
  background: #ff6133;
  box-shadow: 0 12px 32px rgba(255, 77, 46, 0.42);
}

.btn--ghost {
  border: 1px solid var(--w-line);
  color: var(--w-text);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--w-white);
  color: var(--w-white);
}

.text-link {
  color: var(--w-accent-light);
  font-weight: 500;
  border-bottom: 1px solid rgba(255, 122, 69, 0.3);
  transition: color var(--w-transition), border-color var(--w-transition);
}

.text-link:hover {
  color: var(--w-accent);
  border-color: var(--w-accent);
}

.data-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 640px) {
  .data-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 980px) {
  .data-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.data-card {
  background: var(--w-panel);
  border: 1px solid var(--w-line-soft);
  border-radius: var(--w-radius);
  padding: 28px;
  transition: transform var(--w-transition), border-color var(--w-transition), box-shadow var(--w-transition);
}

.data-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 77, 46, 0.5);
  box-shadow: var(--w-shadow);
}

.data-card__label {
  font-size: 13px;
  color: var(--w-text-dim);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.data-card__value {
  margin-top: 10px;
  font-size: 40px;
  line-height: 1;
  font-weight: 800;
  color: var(--w-white);
}

.data-card__value span {
  font-size: 16px;
  font-weight: 400;
  color: var(--w-text-dim);
  margin-left: 4px;
}

.split-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.split-list li {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 4px;
  border-bottom: 1px solid var(--w-line-soft);
}

.split-list .list-label {
  color: var(--w-text-dim);
  font-size: 14px;
}

.split-list .list-value {
  font-weight: 600;
  color: var(--w-white);
  text-align: right;
  font-size: 15px;
}

@media (min-width: 640px) {
  .split-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 0 48px;
  }
}

.media-frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--w-radius);
  background: var(--w-panel-2);
  border: 1px solid var(--w-line-soft);
}

.media-frame--ratio-16x9 {
  aspect-ratio: 16 / 9;
}

.media-frame--ratio-4x3 {
  aspect-ratio: 4 / 3;
}

.media-frame--ratio-1x1 {
  aspect-ratio: 1 / 1;
}

.media-frame--slant::after {
  content: "";
  position: absolute;
  top: 0;
  right: -40%;
  width: 40%;
  height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.08));
  transform: skewX(-18deg);
  pointer-events: none;
}

.media-frame__object {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame__placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.04) 0%, transparent 50%),
    repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.02) 0 1px, transparent 1px 14px),
    var(--w-panel-2);
  color: var(--w-text-dim);
  font-size: 14px;
  letter-spacing: 0.12em;
}

.scroll-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 800;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--w-accent);
  color: #fff;
  font-size: 20px;
  display: grid;
  place-items: center;
  box-shadow: 0 12px 30px rgba(255, 77, 46, 0.4);
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition: opacity var(--w-transition), transform var(--w-transition);
}

.scroll-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.scroll-top:hover {
  background: #ff6133;
}

body::selection {
  background: var(--w-accent);
  color: #fff;
}

::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--w-bg-deep);
}

::-webkit-scrollbar-thumb {
  background: var(--w-panel);
  border-radius: 6px;
  border: 2px solid var(--w-bg-deep);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--w-line);
}

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 560ms cubic-bezier(0.22, 1, 0.36, 1), transform 560ms cubic-bezier(0.22, 1, 0.36, 1);
}

[data-reveal].is-revealed {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 639px) {
  .page-headline h1 {
    font-size: 36px;
  }

  .display-number {
    font-size: 40px;
  }

  .site-header {
    height: 68px;
  }

  .brand__tagline {
    display: none;
  }

  .container {
    width: min(100% - 28px, var(--w-content-width));
  }
}