:root {
  --color-bg: #F5F9F8;
  --color-panel: #FFFFFF;
  --color-panel-soft: #EDF4F1;
  --color-border: #E2EAE6;
  --color-accent: #0B9F4E;
  --color-accent-dark: #07803D;
  --color-accent-soft: rgba(11, 159, 78, .10);
  --color-accent-shadow: rgba(11, 159, 78, .45);
  --color-text: #1D2A24;
  --color-muted: #5C6B64;
  --color-success: #12A150;
  --color-warning: #D98A06;
  --color-error: #D83A34;
  --color-on-accent: #FFFFFF;
  --color-mint-glow: rgba(11, 159, 78, .07);
  --color-sky-glow: rgba(64, 150, 205, .08);
  --color-shadow: rgba(29, 42, 36, .16);
  --color-shadow-soft: rgba(29, 42, 36, .08);
  --color-dot-1: #C7D2CC;
  --color-dot-2: #D6DEDA;
  --color-dot-3: #E3E9E6;
  --font-display: 'Inter', 'Noto Sans SC', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'Inter', 'Noto Sans SC', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Consolas, monospace;
  --radius-xl: 24px;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --radius-pill: 999px;
  --shadow-card: 0 24px 60px -18px var(--color-shadow), 0 4px 14px -4px var(--color-shadow-soft);
  --shadow-float: 0 14px 34px -12px var(--color-shadow), 0 2px 8px -2px var(--color-shadow-soft);
  --shadow-soft: 0 2px 10px -4px var(--color-shadow-soft);
  --shadow-button: 0 8px 20px -8px var(--color-accent-shadow);
  --content-width: 1128px;
  --header-width: 1280px;
  --gutter: clamp(16px, 3vw, 32px);
  --header-height: 64px;
  --section-space: clamp(64px, 9vw, 112px);
  --transition-fast: 150ms ease;
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
html {
  min-width: 320px;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 20px);
}
html.nav-open {
  overflow: hidden;
}
body {
  min-width: 320px;
  margin: 0;
  overflow-x: clip;
  color: var(--color-text);
  background: var(--color-bg);
  font-family: var(--font-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body,
button,
input,
select,
textarea {
  font: inherit;
}
img,
svg,
video,
canvas {
  display: block;
  max-width: 100%;
}
img {
  height: auto;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
a {
  -webkit-tap-highlight-color: transparent;
}
button {
  border: 0;
  cursor: pointer;
}
p,
h1,
h2,
h3,
h4,
ul,
ol,
dl,
dd,
figure,
blockquote,
pre {
  margin-top: 0;
}
h1,
h2,
h3,
h4 {
  color: var(--color-text);
  font-family: var(--font-display);
  line-height: 1.2;
  text-wrap: balance;
}
h1 {
  margin-bottom: 22px;
  font-size: clamp(34px, 3.3vw, 48px);
  font-weight: 800;
  letter-spacing: -.015em;
}
h2 {
  margin-bottom: 20px;
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  letter-spacing: -.012em;
}
h3 {
  margin-bottom: 12px;
  font-size: clamp(20px, 2.5vw, 26px);
  font-weight: 750;
}
p,
li,
dd {
  color: var(--color-muted);
}
strong {
  color: var(--color-text);
}
code,
kbd,
pre {
  font-family: var(--font-mono);
}
:not(pre) > code {
  max-width: 100%;
  overflow-wrap: anywhere;
  color: var(--color-text);
  background: var(--color-panel-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: .12em .38em;
  font-size: .9em;
}
pre {
  max-width: 100%;
  overflow-x: auto;
  padding: 20px;
  color: var(--color-text);
  background: var(--color-panel-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  line-height: 1.65;
  overscroll-behavior-inline: contain;
  -webkit-overflow-scrolling: touch;
}
pre code {
  overflow-wrap: normal;
}
table {
  width: 100%;
  border-collapse: collapse;
}
th,
td {
  padding: 14px 16px;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
}
th {
  background: var(--color-panel-soft);
  font-weight: 750;
}
:focus-visible {
  outline: 3px solid var(--color-accent-soft);
  outline-offset: 3px;
}
.wrap {
  width: 100%;
  max-width: calc(var(--content-width) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.wide-wrap {
  width: 100%;
  max-width: min(100%, calc(var(--header-width) + var(--gutter) * 2));
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section {
  padding-top: var(--section-space);
  padding-bottom: var(--section-space);
}
.section--white {
  color: var(--color-text);
  background: var(--color-panel);
}
.section--soft {
  color: var(--color-text);
  background: var(--color-panel-soft);
}
.section-heading {
  max-width: 720px;
  margin-bottom: 42px;
}
.section-heading p {
  margin-bottom: 0;
  font-size: 17px;
}
.nowrap-term {
  white-space: nowrap;
}
@media (max-width: 960px) {
  .nowrap-term {
    white-space: normal;
  }
}
.muted {
  color: var(--color-muted);
}
.accent-text,
.hero-title-accent {
  color: var(--color-accent);
}
.panel,
.card {
  min-width: 0;
  color: var(--color-text);
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}
.panel {
  padding: clamp(20px, 4vw, 32px);
}
.card {
  padding: 24px;
}
.card--raised {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
}
.button,
.btn {
  min-height: 48px;
  max-width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 0 24px;
  color: var(--color-text);
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 750;
  line-height: 1.2;
  text-align: center;
  transition: transform var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
}
.button svg,
.btn svg {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
}
.button:hover,
.btn:hover {
  border-color: var(--color-dot-1);
  transform: translateY(-1px);
}
.button--primary,
.btn-primary {
  color: var(--color-on-accent);
  background: var(--color-accent);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-button);
}
.button--primary:hover,
.btn-primary:hover {
  color: var(--color-on-accent);
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
}
.button--soft {
  color: var(--color-accent-dark);
  background: var(--color-accent-soft);
}
.button[disabled],
.button.is-disabled {
  cursor: not-allowed;
  opacity: .58;
  transform: none;
}
.button-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}
.badge,
.chip {
  max-width: 100%;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  overflow: hidden;
  color: var(--color-muted);
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-soft);
  font-size: 12.5px;
  font-weight: 650;
}
.badge-dot {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  background: var(--color-success);
  border-radius: 50%;
}
.badge--success {
  color: var(--color-accent-dark);
  background: var(--color-accent-soft);
}
.badge--warning {
  color: var(--color-text);
  background: var(--color-panel-soft);
  border-color: var(--color-warning);
}
.badge--danger {
  color: var(--color-error);
  background: var(--color-panel);
  border-color: var(--color-error);
}
.site-head {
  position: relative;
  z-index: 50;
  height: var(--header-height);
  color: var(--color-text);
  background: var(--color-panel);
  border-bottom: 1px solid var(--color-border);
}
.head-row {
  height: var(--header-height);
  display: flex;
  align-items: center;
  gap: 36px;
}
.brand {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
}
.brand-mark {
  width: 32px;
  height: 32px;
  flex: 0 0 auto;
}
.brand-name {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: .01em;
}
.head-nav {
  height: var(--header-height);
  display: flex;
  flex: 1 1 auto;
  align-items: stretch;
  gap: 4px;
}
.head-nav a {
  position: relative;
  display: flex;
  align-items: center;
  padding-inline: 14px;
  color: var(--color-muted);
  font-size: 14px;
  font-weight: 550;
  transition: color var(--transition-fast);
}
.head-nav a:hover,
.head-nav a.is-active {
  color: var(--color-text);
}
.head-nav a.is-active {
  font-weight: 750;
}
.head-nav a.is-active::after {
  position: absolute;
  right: 12px;
  bottom: 0;
  left: 12px;
  height: 3px;
  content: "";
  background: var(--color-accent);
  border-radius: 3px 3px 0 0;
}
.head-tools {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 8px;
}
.lang-control {
  position: relative;
}
.lang-trigger {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding-inline: 14px;
  color: var(--color-muted);
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 550;
  white-space: nowrap;
}
.lang-short {
  display: none;
}
.lang-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  z-index: 60;
  width: 168px;
  display: none;
  padding: 7px;
  color: var(--color-text);
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-float);
}
.lang-control.is-open .lang-menu {
  display: block;
}
.lang-menu a {
  min-height: 42px;
  display: flex;
  align-items: center;
  width: 100%;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  font-size: 13px;
}
.lang-menu a:hover,
.lang-menu a[aria-current="true"] {
  color: var(--color-text);
  background: var(--color-panel-soft);
}
.menu-toggle {
  min-width: 44px;
  min-height: 44px;
  display: none;
  place-items: center;
  color: var(--color-text);
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.menu-toggle-lines,
.menu-toggle-lines::before,
.menu-toggle-lines::after {
  width: 19px;
  height: 2px;
  display: block;
  background: var(--color-text);
  border-radius: var(--radius-pill);
}
.menu-toggle-lines {
  position: relative;
}
.menu-toggle-lines::before,
.menu-toggle-lines::after {
  position: absolute;
  left: 0;
  content: "";
}
.menu-toggle-lines::before {
  top: -6px;
}
.menu-toggle-lines::after {
  top: 6px;
}
.mobile-nav {
  position: absolute;
  top: var(--header-height);
  right: 0;
  left: 0;
  z-index: 55;
  display: none;
  max-height: calc(100dvh - var(--header-height));
  overflow-y: auto;
  padding: 10px var(--gutter) 22px;
  color: var(--color-text);
  background: var(--color-panel);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-float);
  overscroll-behavior: contain;
}
.mobile-nav.is-open {
  display: block;
}
.mobile-nav a {
  min-height: 48px;
  width: 100%;
  display: flex;
  align-items: center;
  padding: 10px 12px;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  font-weight: 650;
}
.mobile-nav a.is-active {
  color: var(--color-accent-dark);
}
.mobile-language-list {
  padding-top: 12px;
}
.mobile-language-label {
  margin: 0;
  padding: 8px 12px;
  color: var(--color-muted);
  font-size: 12px;
  font-weight: 700;
}
.nav-veil {
  position: fixed;
  inset: var(--header-height) 0 0;
  z-index: 40;
  display: none;
  background: var(--color-shadow-soft);
}
.nav-veil.is-open {
  display: block;
}
.site-footer {
  color: var(--color-text);
  background: var(--color-panel);
  border-top: 1px solid var(--color-border);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1.2fr .8fr;
  gap: 42px;
  padding-top: 58px;
  padding-bottom: 44px;
}
.footer-brand p {
  max-width: 28em;
  margin-top: 16px;
  color: var(--color-muted);
  font-size: 14px;
}
.footer-title {
  margin-bottom: 14px;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 800;
}
.footer-links {
  display: grid;
  gap: 8px;
}
.footer-links a {
  width: fit-content;
  color: var(--color-muted);
  font-size: 13.5px;
}
.footer-links a:hover {
  color: var(--color-accent-dark);
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 20px;
  padding-bottom: 24px;
  color: var(--color-muted);
  border-top: 1px solid var(--color-border);
  font-size: 12.5px;
}
.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 520ms ease, transform 520ms ease;
}
.reveal.shown {
  opacity: 1;
  transform: none;
}
.table-scroll {
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  -webkit-overflow-scrolling: touch;
}
.decorated-section,
.hero,
.hero-stage {
  overflow-x: clip;
}
.tilt {
  transform: rotate(-.45deg);
}
@media (max-width: 1120px) {
  .head-row {
    gap: 18px;
  }
  .head-nav a {
    padding-inline: 9px;
    font-size: 13px;
  }
}
@media (max-width: 920px) {
  .head-nav {
    display: none;
  }
  .head-tools {
    margin-left: auto;
  }
  .menu-toggle {
    display: grid;
  }
  .footer-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 640px) {
  :root {
    --gutter: 16px;
    --section-space: 64px;
  }
  h1,
  .hero h1 {
    font-size: clamp(24px, 7.5vw, 30px);
    line-height: 1.16;
    letter-spacing: -.012em;
  }
  h2 {
    font-size: 27px;
  }
  .lang-full {
    display: none;
  }
  .lang-short {
    display: inline;
  }
  .lang-trigger {
    min-width: 44px;
    justify-content: center;
    padding-inline: 10px;
  }
  .button-row {
    align-items: stretch;
  }
  .button-row .button,
  .button-row .btn {
    flex: 1 1 180px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }
  .tilt,
  [class*="tilt"] {
    transform: none;
  }
  th,
  td {
    padding: 12px;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation: none !important;
    transition: none !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}