:root {
  --color-bg: #FFFFFF;
  --color-panel: #F5F7F9;
  --color-panel-strong: #EDF1F4;
  --color-border: #DDE4EA;
  --color-accent: #0FAAB8;
  --color-accent-dark: #0B4F8A;
  --color-text: #16232C;
  --color-text-muted: #5C6B78;
  --color-success: #3DDC97;
  --color-warning: #E8A13C;
  --color-error: #D9534F;
  --color-success-tint: rgba(61, 220, 151, 0.13);
  --color-accent-tint: rgba(15, 170, 184, 0.09);
  --color-accent-soft: rgba(15, 170, 184, 0.16);
  --color-dark-tint: rgba(11, 79, 138, 0.08);
  --color-overlay: rgba(22, 35, 44, 0.42);
  --color-card-glass: rgba(255, 255, 255, 0.86);
  --color-card-glass-dim: rgba(255, 255, 255, 0.62);
  --color-stripe: rgba(15, 170, 184, 0.11);
  --color-shadow-low: rgba(22, 35, 44, 0.04);
  --color-shadow-mid: rgba(22, 35, 44, 0.07);
  --color-shadow-high: rgba(22, 35, 44, 0.11);
  --color-button-shadow: rgba(11, 79, 138, 0.18);
  --color-button-shadow-hover: rgba(11, 79, 138, 0.24);
  --gradient-brand: linear-gradient(100deg, var(--color-accent) 12%, var(--color-accent-dark) 88%);
  --font-display: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --radius-sm: 10px;
  --radius-md: 15px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-pill: 999px;
  --shadow-1: 0 1px 2px var(--color-shadow-low), 0 10px 22px var(--color-shadow-low);
  --shadow-2: 0 2px 4px var(--color-shadow-low), 0 16px 34px var(--color-shadow-mid);
  --shadow-3: 0 4px 8px var(--color-shadow-mid), 0 26px 54px var(--color-shadow-high);
  --shadow-button: 0 8px 20px var(--color-button-shadow);
  --shadow-button-hover: 0 12px 26px var(--color-button-shadow-hover);
  --nav-height: 76px;
  --content-width: 1224px;
  --reading-width: 800px;
  --gutter: 32px;
  --section-space: 104px;
  --transition-fast: 180ms ease;
  --transition-medium: 420ms ease;
}

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

html {
  scroll-behavior: smooth;
  background: var(--color-bg);
}

html.nav-open {
  overflow: hidden;
}

body {
  min-width: 320px;
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-wrap: break-word;
}

body,
header,
main,
footer,
section,
article {
  min-width: 0;
}

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

svg {
  flex-shrink: 0;
}

button,
input,
select,
textarea {
  color: inherit;
  font: inherit;
}

button {
  border: 0;
}

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

a,
button,
summary {
  -webkit-tap-highlight-color: transparent;
}

p,
h1,
h2,
h3,
h4,
ul,
ol,
dl,
dd,
figure,
blockquote,
pre {
  margin-top: 0;
}

ul,
ol {
  padding-left: 1.35em;
}

code,
kbd,
samp {
  font-family: var(--font-mono);
}

:not(pre) > code {
  padding: 0.12em 0.38em;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-panel);
  color: var(--color-accent-dark);
  font-size: 0.9em;
  overflow-wrap: anywhere;
}

pre {
  max-width: 100%;
  padding: 20px;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-panel);
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.75;
  -webkit-overflow-scrolling: touch;
}

pre code {
  white-space: pre;
  overflow-wrap: normal;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--color-panel);
  color: var(--color-text);
  font-weight: 700;
}

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

::selection {
  background: var(--color-accent-soft);
  color: var(--color-text);
}

.wrap {
  width: 100%;
  max-width: var(--content-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.reading-wrap {
  width: 100%;
  max-width: var(--reading-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  position: relative;
  padding-top: var(--section-space);
  padding-bottom: var(--section-space);
  overflow-x: clip;
}

.section-panel {
  background: var(--color-panel);
}

.section-panel-strong {
  background: var(--color-panel-strong);
}

.section-heading {
  max-width: 720px;
  margin-bottom: 48px;
}

.eyebrow {
  margin-bottom: 12px;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4 {
  color: var(--color-text);
  font-family: var(--font-display);
  text-wrap: balance;
}

h1,
.hero-title {
  margin-bottom: 22px;
  font-size: clamp(34px, 3.4vw, 48px);
  font-weight: 800;
  letter-spacing: -0.012em;
  line-height: 1.28;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.25;
}

h3 {
  margin-bottom: 12px;
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 750;
  line-height: 1.35;
}

h4 {
  margin-bottom: 10px;
  font-size: 18px;
  font-weight: 700;
}

.title-keep {
  white-space: nowrap;
}

.text-gradient {
  background: var(--gradient-brand);
  color: transparent;
  -webkit-background-clip: text;
  background-clip: text;
}

.lead {
  color: var(--color-text-muted);
  font-size: clamp(17px, 1.7vw, 21px);
  line-height: 1.85;
}

.muted {
  color: var(--color-text-muted);
}

.mono-label {
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.button,
.btn-main,
.btn-sub {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border-radius: var(--radius-pill);
  padding: 12px 25px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.3;
  text-align: center;
  transition: border-color var(--transition-fast), background var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.button svg,
.btn-main svg,
.btn-sub svg {
  width: 16px;
  height: 16px;
}

.button-primary,
.btn-main {
  border: 1px solid transparent;
  background: var(--gradient-brand);
  color: var(--color-bg);
  box-shadow: var(--shadow-button);
}

.button-primary:hover,
.btn-main:hover {
  box-shadow: var(--shadow-button-hover);
  transform: translateY(-2px);
}

.button-secondary,
.btn-sub {
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
}

.button-secondary:hover,
.btn-sub:hover {
  border-color: var(--color-accent);
  background: var(--color-panel);
}

.button-quiet {
  border: 1px solid transparent;
  background: transparent;
  color: var(--color-accent-dark);
}

.button-quiet:hover {
  background: var(--color-accent-tint);
}

.button[disabled],
.button.is-disabled {
  cursor: not-allowed;
  opacity: 0.48;
  transform: none;
}

.button-row,
.cta-row,
.chip-row,
.badge-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.card,
.panel {
  min-width: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
}

.card {
  padding: 28px;
  box-shadow: var(--shadow-1);
}

.panel {
  padding: 32px;
}

.card:hover {
  box-shadow: var(--shadow-2);
}

.soft-panel {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-panel);
  padding: 40px;
}

.status-dot,
.icon-dot,
.hero-kicker .dot {
  width: 7px;
  height: 7px;
  flex-shrink: 0;
  border-radius: var(--radius-pill);
  background: var(--gradient-brand);
}

.badge,
.chip {
  display: inline-flex;
  max-width: 100%;
  min-height: 30px;
  align-items: center;
  gap: 7px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-text-muted);
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 650;
  line-height: 1.35;
  overflow: hidden;
}

.badge-success {
  border-color: var(--color-success);
  background: var(--color-success-tint);
  color: var(--color-text);
}

.badge-warning {
  border-color: var(--color-warning);
  color: var(--color-text);
}

.badge-error {
  border-color: var(--color-error);
  color: var(--color-error);
}

.badge-accent {
  border-color: var(--color-accent);
  background: var(--color-accent-tint);
  color: var(--color-accent-dark);
}

.site-head {
  position: sticky;
  top: 0;
  z-index: 60;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}

.site-head-inner {
  display: flex;
  min-height: var(--nav-height);
  align-items: center;
  gap: 36px;
}

.brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 11px;
  flex-shrink: 0;
}

.brand-mark {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
}

.brand-name {
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 27px;
  margin-left: auto;
}

.main-nav a {
  position: relative;
  padding: 8px 1px;
  color: var(--color-text-muted);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.main-nav a:hover,
.main-nav a.is-active,
.main-nav a[aria-current="page"] {
  color: var(--color-text);
}

.main-nav a.is-active,
.main-nav a[aria-current="page"] {
  font-weight: 700;
}

.header-tools {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.language-control {
  position: relative;
}

.language-button {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-bg);
  color: var(--color-text-muted);
  padding: 7px 14px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
}

.language-button:hover,
.language-button[aria-expanded="true"] {
  border-color: var(--color-accent);
  color: var(--color-text);
}

.language-short {
  display: none;
}

.language-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  z-index: 72;
  width: 168px;
  padding: 7px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  box-shadow: var(--shadow-2);
}

.language-menu[hidden] {
  display: none;
}

.language-menu a {
  display: flex;
  min-height: 42px;
  align-items: center;
  border-radius: var(--radius-sm);
  padding: 8px 11px;
  color: var(--color-text-muted);
  font-size: 13px;
}

.language-menu a:hover,
.language-menu a[aria-current="true"] {
  background: var(--color-panel);
  color: var(--color-text);
}

.menu-toggle {
  display: none;
  width: 44px;
  min-width: 44px;
  height: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-bg);
  cursor: pointer;
}

.menu-toggle-lines {
  position: relative;
  width: 18px;
  height: 14px;
}

.menu-toggle-lines::before,
.menu-toggle-lines::after,
.menu-toggle-lines span {
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  border-radius: var(--radius-pill);
  background: var(--color-text);
  content: "";
  transition: transform var(--transition-fast), opacity var(--transition-fast), top var(--transition-fast);
}

.menu-toggle-lines::before {
  top: 0;
}

.menu-toggle-lines span {
  top: 6px;
}

.menu-toggle-lines::after {
  top: 12px;
}

.menu-toggle[aria-expanded="true"] .menu-toggle-lines::before {
  top: 6px;
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-lines span {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-toggle-lines::after {
  top: 6px;
  transform: rotate(-45deg);
}

.mobile-drawer {
  display: none;
}

.mobile-drawer[hidden] {
  display: none;
}

.mobile-veil {
  display: none;
}

.site-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-panel);
  overflow-x: clip;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(240px, 1.2fr) minmax(150px, 0.7fr) minmax(260px, 1fr) minmax(150px, 0.7fr);
  gap: 44px;
  padding-top: 68px;
  padding-bottom: 48px;
}

.footer-brand p {
  max-width: 340px;
  margin-top: 18px;
  color: var(--color-text-muted);
  font-size: 14px;
}

.footer-title {
  margin-bottom: 16px;
  color: var(--color-text);
  font-size: 13px;
  font-weight: 750;
}

.footer-links {
  display: grid;
  gap: 8px;
}

.footer-links a {
  display: block;
  width: fit-content;
  max-width: 100%;
  padding-block: 3px;
  color: var(--color-text-muted);
  font-size: 13px;
  overflow-wrap: anywhere;
}

.footer-links a:hover {
  color: var(--color-accent-dark);
}

.footer-hot {
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-hot a {
  display: inline-flex;
  max-width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-bg);
  padding: 5px 10px;
  color: var(--color-text-muted);
  font-size: 12px;
  overflow-wrap: anywhere;
}

.footer-hot a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-dark);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 22px;
  padding-bottom: 28px;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 12px;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--transition-medium), transform var(--transition-medium);
}

.reveal.shown {
  opacity: 1;
  transform: translateY(0);
}

.hero {
  position: relative;
  overflow-x: clip;
  background: var(--color-bg);
}

.hero .wrap,
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  min-height: calc(900px - var(--nav-height) - 88px);
  align-items: center;
  gap: 44px;
  padding-top: 52px;
  padding-bottom: 60px;
}

.hero-copy {
  min-width: 0;
  max-width: 520px;
}

.hero-kicker {
  display: inline-flex;
  max-width: 100%;
  align-items: center;
  gap: 9px;
  margin-bottom: 28px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  padding: 6px 16px;
  color: var(--color-text-muted);
  font-size: 13px;
  font-weight: 500;
}

.hero-kicker code {
  border: 0;
  background: transparent;
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 0;
}

.hero-desc {
  max-width: 490px;
  margin-bottom: 34px;
  color: var(--color-text-muted);
  font-size: 16px;
  line-height: 1.9;
}

.hero-desc strong {
  color: var(--color-text);
  font-weight: 650;
}

.cta-row {
  margin-bottom: 38px;
  gap: 16px;
}

.btn-main {
  padding: 14px 32px;
  font-size: 15.5px;
}

.btn-sub {
  padding: 13px 26px;
}

.plat-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 22px;
}

.plat-cap {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  opacity: 0.75;
}

.plat {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--color-text-muted);
  font-size: 13px;
  font-weight: 500;
  opacity: 0.85;
  transition: color var(--transition-fast), opacity var(--transition-fast);
}

.plat:hover {
  color: var(--color-accent-dark);
  opacity: 1;
}

.plat svg {
  width: 14px;
  height: 14px;
}

.hero-rig {
  position: relative;
  min-width: 0;
  min-height: 640px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-x: clip;
}

.rig-field {
  position: absolute;
  inset: 0 -2% 10% 2%;
  background: repeating-linear-gradient(90deg, var(--color-stripe) 0, var(--color-stripe) 1px, transparent 1px, transparent 12px);
  -webkit-mask-image: radial-gradient(72% 62% at 52% 42%, var(--color-overlay) 18%, transparent 70%);
  mask-image: radial-gradient(72% 62% at 52% 42%, var(--color-overlay) 18%, transparent 70%);
  pointer-events: none;
}

.rig-stack {
  position: relative;
  width: min(545px, 100%);
  transform: perspective(1500px) rotateX(6deg) rotateY(-4deg);
  transform-style: preserve-3d;
  animation: rig-float 7s ease-in-out infinite alternate;
}

@keyframes rig-float {
  from {
    transform: perspective(1500px) rotateX(6deg) rotateY(-4deg) translateY(0);
  }
  to {
    transform: perspective(1500px) rotateX(6deg) rotateY(-4deg) translateY(-8px);
  }
}

.layer-card {
  position: relative;
  min-width: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-card-glass);
  padding: 18px 24px 17px;
  backdrop-filter: blur(3px);
}

.layer-card + .layer-card {
  margin-top: 22px;
}

.layer-card:nth-child(1) {
  margin-right: 56px;
  margin-left: 14px;
  background: var(--color-card-glass-dim);
  box-shadow: var(--shadow-1);
  transform: scale(0.955);
  transform-origin: center bottom;
}

.layer-card:nth-child(2) {
  margin-right: 36px;
  margin-left: 24px;
  background: var(--color-card-glass-dim);
  box-shadow: var(--shadow-1);
  transform: scale(0.975);
  transform-origin: center bottom;
}

.layer-card:nth-child(3) {
  margin-right: 16px;
  margin-left: 36px;
  box-shadow: var(--shadow-2);
}

.layer-card:nth-child(4) {
  margin-right: -6px;
  margin-left: 52px;
  padding: 22px 26px 21px;
  border-color: var(--color-accent);
  background: var(--color-bg);
  box-shadow: var(--shadow-3);
  transform: scale(1.03);
  transform-origin: center top;
}

.layer-card:nth-child(1) .layer-name,
.layer-card:nth-child(1) .layer-meta {
  opacity: 0.72;
}

.layer-card:nth-child(2) .layer-name,
.layer-card:nth-child(2) .layer-meta {
  opacity: 0.85;
}

.layer-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 6px;
}

.layer-idx {
  color: var(--color-accent-dark);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
}

.layer-name {
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.layer-meta {
  margin-bottom: 0;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.6;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.layer-meta .k {
  color: var(--color-accent-dark);
}

.layer-core {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 16px;
}

.core-lock {
  width: 42px;
  height: 42px;
}

.core-txt {
  min-width: 0;
}

.core-txt .layer-name {
  font-size: 15px;
}

.pill-enc {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
  margin-left: auto;
  border: 1px solid var(--color-success);
  border-radius: var(--radius-pill);
  background: var(--color-success-tint);
  color: var(--color-text);
  padding: 5px 14px;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.pill-enc .p-dot {
  width: 7px;
  height: 7px;
  flex-shrink: 0;
  border-radius: var(--radius-pill);
  background: var(--color-success);
}

.layer-link {
  position: absolute;
  left: 50%;
  width: 1px;
  height: 22px;
  margin-top: -22px;
  border-left: 1px dashed var(--color-border);
  transform: translateX(-50%);
  pointer-events: none;
}

.data-table-wrap,
.prose > .data-table {
  display: block;
  max-width: 100%;
  min-width: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.prose {
  min-width: 0;
  color: var(--color-text);
}

.prose p,
.prose li {
  color: var(--color-text-muted);
}

.prose h2 {
  margin-top: 2.4em;
}

.prose h3 {
  margin-top: 1.8em;
}

.prose a {
  color: var(--color-accent-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.prose img {
  height: auto;
  border-radius: var(--radius-lg);
}

.decor-region,
.has-decoration {
  position: relative;
  overflow-x: clip;
}

.tilt {
  transform: rotate(0.45deg);
}

@media (max-width: 1120px) {
  .main-nav {
    gap: 18px;
  }

  .main-nav a {
    font-size: 13px;
  }

  .hero .wrap,
  .hero-grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: 28px;
  }
}

@media (max-width: 960px) {
  .main-nav {
    display: none;
  }

  .header-tools {
    margin-left: auto;
  }

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

  .mobile-drawer {
    position: fixed;
    top: var(--nav-height);
    right: 0;
    left: 0;
    z-index: 65;
    display: block;
    max-height: calc(100dvh - var(--nav-height));
    overflow-y: auto;
    overscroll-behavior: contain;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg);
    box-shadow: var(--shadow-2);
  }

  .mobile-drawer[hidden] {
    display: none;
  }

  .mobile-drawer-inner {
    padding: 10px var(--gutter) 20px;
  }

  .mobile-drawer a {
    display: flex;
    width: 100%;
    min-height: 48px;
    align-items: center;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-muted);
    padding: 11px 4px;
    font-size: 15px;
  }

  .mobile-drawer a.is-active,
  .mobile-drawer a[aria-current="page"] {
    color: var(--color-text);
    font-weight: 700;
  }

  .mobile-language-title {
    margin: 18px 0 4px;
    color: var(--color-accent-dark);
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.1em;
  }

  .mobile-veil {
    position: fixed;
    inset: var(--nav-height) 0 0;
    z-index: 50;
    display: block;
    background: var(--color-overlay);
  }

  .mobile-veil[hidden] {
    display: none;
  }

  .hero .wrap,
  .hero-grid {
    grid-template-columns: minmax(0, 1fr);
    min-height: 0;
    gap: 44px;
    padding-top: 48px;
  }

  .hero-copy {
    max-width: 650px;
  }

  .hero-rig {
    min-height: 540px;
  }

  .rig-stack {
    width: min(500px, 100%);
  }

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

@media (max-width: 768px) {
  :root {
    --section-space: 76px;
  }

  h1,
  .hero-title {
    font-size: clamp(24px, 7.2vw, 30px);
    line-height: 1.3;
    letter-spacing: -0.01em;
  }

  h2 {
    font-size: clamp(25px, 7vw, 34px);
  }

  .brand-name {
    font-size: 15px;
  }

  .hero-rig {
    min-height: 500px;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  :root {
    --gutter: 18px;
    --nav-height: 68px;
  }

  .wrap,
  .reading-wrap {
    padding-inline: var(--gutter);
  }

  .site-head-inner {
    min-height: var(--nav-height);
    gap: 12px;
  }

  .brand-mark {
    width: 31px;
    height: 31px;
  }

  .brand-name {
    max-width: 130px;
    line-height: 1.25;
  }

  .header-tools {
    margin-left: auto;
    gap: 5px;
  }

  .language-full {
    display: none;
  }

  .language-short {
    display: inline;
  }

  .language-button {
    min-width: 48px;
    padding-inline: 10px;
  }

  .language-menu {
    right: -48px;
  }

  .button-row,
  .cta-row {
    align-items: stretch;
  }

  .cta-row .btn-main,
  .cta-row .btn-sub {
    flex: 1 1 160px;
  }

  .chip-row,
  .badge-row,
  .plat-row {
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
  }

  .card,
  .panel {
    padding: 22px;
  }

  .soft-panel {
    padding: 26px 20px;
  }

  .hero .wrap,
  .hero-grid {
    gap: 32px;
    padding-top: 38px;
    padding-bottom: 48px;
  }

  .hero-kicker {
    margin-bottom: 20px;
    padding-inline: 12px;
    border-radius: var(--radius-lg);
  }

  .hero-desc {
    margin-bottom: 25px;
    font-size: 15px;
    line-height: 1.8;
  }

  .cta-row {
    margin-bottom: 28px;
    gap: 10px;
  }

  .plat-row {
    gap: 13px 16px;
  }

  .plat-cap {
    flex-basis: 100%;
  }

  .hero-rig {
    min-height: 430px;
  }

  .rig-stack,
  .tilt {
    transform: none;
  }

  .rig-stack {
    animation: none;
  }

  .layer-card {
    padding: 15px 17px;
  }

  .layer-card:nth-child(1),
  .layer-card:nth-child(2),
  .layer-card:nth-child(3),
  .layer-card:nth-child(4) {
    margin-right: 0;
    margin-left: 0;
    transform: none;
  }

  .layer-card:nth-child(4) {
    padding: 18px;
  }

  .layer-meta {
    white-space: normal;
    overflow: visible;
    text-overflow: clip;
    overflow-wrap: anywhere;
  }

  .layer-core {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .pill-enc {
    margin-left: 58px;
  }

  .footer-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
    padding-top: 52px;
  }

  th,
  td {
    min-width: 150px;
    padding: 12px;
  }
}

@media (max-width: 400px) {
  :root {
    --gutter: 16px;
  }

  .brand-name {
    max-width: 104px;
    font-size: 14px;
  }

  .btn-main,
  .btn-sub,
  .button {
    width: 100%;
  }

  .hero-rig {
    min-height: 445px;
  }

  .core-lock {
    width: 36px;
    height: 36px;
  }

  .pill-enc {
    margin-left: 52px;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .rig-stack {
    animation: none;
  }

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