:root {
  --bg: #f7f9fc;
  --paper: #ffffff;
  --paper-strong: #fbfdff;
  --ink: #07111f;
  --muted: #607089;
  --muted-2: #8390a5;
  --line: rgba(7, 17, 31, 0.1);
  --line-strong: rgba(7, 17, 31, 0.18);
  --navy: #101a33;
  --blue: #306bff;
  --violet: #7b4dff;
  --cyan: #12c7ff;
  --lime: #a8ff3e;
  --green: #18b866;
  --shadow: 0 28px 70px rgba(30, 51, 93, 0.13), 0 8px 22px rgba(12, 22, 40, 0.08), inset 0 0 0 1px rgba(255, 255, 255, 0.82);
  --shadow-soft: 0 14px 40px rgba(30, 51, 93, 0.1), 0 1px 0 rgba(255, 255, 255, 0.7) inset;
  --radius: 8px;
  --font-body: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "SF Mono", ui-monospace, Menlo, Consolas, monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(rgba(7, 17, 31, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(7, 17, 31, 0.035) 1px, transparent 1px),
    radial-gradient(circle at 16% 4%, rgba(48, 107, 255, 0.12), transparent 28%),
    radial-gradient(circle at 86% 10%, rgba(168, 255, 62, 0.14), transparent 22%),
    linear-gradient(180deg, #ffffff 0, var(--bg) 420px, #f2f6fb 100%);
  background-size: 42px 42px, 42px 42px, auto, auto, auto;
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

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

button {
  font: inherit;
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: grid;
  grid-template-columns: minmax(270px, auto) 1fr;
  align-items: center;
  gap: 24px;
  min-height: 76px;
  padding: 12px 34px;
  border-bottom: 1px solid rgba(7, 17, 31, 0.08);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 16px 42px rgba(24, 45, 83, 0.07);
  backdrop-filter: blur(18px) saturate(1.25);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  position: relative;
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  overflow: hidden;
  border-radius: 50%;
  background:
    radial-gradient(circle at 34% 28%, rgba(255, 255, 255, 0.24), transparent 18%),
    radial-gradient(circle at 50% 52%, #16366f, #07111f 68%);
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 820;
  line-height: 1;
  text-transform: uppercase;
  transform-style: preserve-3d;
  animation: brandPlanetSpin 5.8s linear infinite;
  box-shadow: 0 0 0 1px rgba(7, 17, 31, 0.14), 0 10px 22px rgba(7, 17, 31, 0.14), 0 0 28px rgba(48, 107, 255, 0.2);
}

.brand-mark::before {
  content: "";
  position: absolute;
  inset: 5px -7px;
  border: 1px solid rgba(18, 199, 255, 0.34);
  border-radius: 50%;
  transform: rotate(-16deg);
  box-shadow: 0 0 18px rgba(18, 199, 255, 0.18);
}

.brand-mark::after {
  content: "";
  position: absolute;
  right: 4px;
  top: 3px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 18px rgba(168, 255, 62, 0.9);
}

.brand strong {
  display: block;
  font-size: 15px;
  line-height: 1.05;
  letter-spacing: 0;
}

.brand small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.top-nav a {
  min-height: 34px;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  padding: 8px 12px;
  border-radius: 999px;
  color: #31415a;
  font-size: 13px;
  font-weight: 560;
  white-space: nowrap;
  box-shadow: inset 0 0 0 1px transparent;
  transition: transform 160ms ease, background 160ms ease, color 160ms ease, box-shadow 160ms ease;
}

.top-nav a:hover {
  transform: translateY(-1px);
  background: rgba(48, 107, 255, 0.07);
  color: var(--blue);
  box-shadow: inset 0 0 0 1px rgba(48, 107, 255, 0.16);
}

.top-nav a.active {
  background: var(--ink);
  color: #fff;
  box-shadow: 0 10px 24px rgba(7, 17, 31, 0.15);
}

.progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--cyan), var(--lime));
  box-shadow: 0 0 24px rgba(18, 199, 255, 0.45);
}

.lesson-shell {
  width: min(1360px, calc(100vw - 48px));
  margin: 0 auto;
}

.home-page main {
  width: 100%;
}

.home-hero {
  position: relative;
  min-height: calc(100vh - 76px);
  display: flex;
  align-items: center;
  width: min(100% - 48px, 1440px);
  margin: 0 auto 28px;
  padding: clamp(46px, 6vw, 82px);
  overflow: hidden;
  border-radius: 22px;
  color: #fff;
  isolation: isolate;
  background:
    radial-gradient(circle at 74% 47%, rgba(48, 107, 255, 0.34), transparent 29%),
    radial-gradient(circle at 82% 18%, rgba(168, 255, 62, 0.2), transparent 20%),
    radial-gradient(circle at 18% 20%, rgba(18, 199, 255, 0.2), transparent 25%),
    linear-gradient(145deg, #06101f 0%, #0f1b36 48%, #07111f 100%);
  box-shadow: 0 42px 110px rgba(8, 18, 40, 0.28), inset 0 0 0 1px rgba(255, 255, 255, 0.12);
}

.home-hero::before {
  content: "";
  position: absolute;
  inset: -18%;
  z-index: -1;
  background:
    conic-gradient(from 14deg at 68% 50%, transparent 0 9%, rgba(18, 199, 255, 0.2) 14%, transparent 23%, transparent 38%, rgba(168, 255, 62, 0.16) 45%, transparent 56%, transparent 70%, rgba(123, 77, 255, 0.14) 78%, transparent 89%),
    linear-gradient(rgba(255, 255, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.055) 1px, transparent 1px);
  background-size: auto, 34px 34px, 34px 34px;
  animation: galaxyDrift 26s linear infinite;
}

.home-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(6, 16, 31, 0.72) 0%, rgba(6, 16, 31, 0.48) 35%, transparent 64%),
    linear-gradient(120deg, transparent 0 42%, rgba(255, 255, 255, 0.14) 50%, transparent 58%);
  transform: translateX(-20%);
  animation: heroSignalSweep 8.5s ease-in-out infinite;
}

.hero-copy {
  position: relative;
  z-index: 4;
  min-width: 0;
  width: min(48%, 660px);
}

.eyebrow,
.screen-kicker,
.section-label {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  gap: 8px;
  margin: 0 0 18px;
  color: #335071;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0;
  text-transform: uppercase;
}

.eyebrow::before,
.section-label::before,
.screen-kicker::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 18px rgba(168, 255, 62, 0.8);
}

.screen-kicker {
  max-width: 100%;
  flex-wrap: wrap;
  overflow-wrap: anywhere;
  line-height: 1.45;
}

.home-hero h1 {
  max-width: 660px;
  margin: 0;
  font-size: clamp(44px, 4.5vw, 72px);
  font-weight: 720;
  line-height: 1.04;
  letter-spacing: 0;
  text-wrap: balance;
}

.home-lead {
  max-width: 600px;
  margin: 26px 0 0;
  color: rgba(235, 244, 255, 0.8);
  font-size: clamp(17px, 1.55vw, 21px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.primary-action,
.secondary-action,
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 42px;
  padding: 10px 16px;
  border-radius: 7px;
  font-size: 14px;
  font-weight: 650;
}

.primary-action {
  background: var(--ink);
  color: #fff;
  box-shadow: 0 18px 34px rgba(7, 17, 31, 0.18);
}

.secondary-action {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18), 0 12px 28px rgba(7, 17, 31, 0.16);
  backdrop-filter: blur(12px);
}

.primary-action::after,
.secondary-action::after,
.card-link::after {
  content: "→";
  font-family: var(--font-mono);
}

.hero-console {
  position: absolute;
  inset: 0;
  z-index: 2;
  min-height: 0;
  overflow: hidden;
  border-radius: inherit;
  background:
    radial-gradient(ellipse at 50% 50%, rgba(255, 255, 255, 0.16) 0 1px, transparent 2px 100%),
    radial-gradient(circle at 50% 48%, rgba(168, 255, 62, 0.16) 0 3px, transparent 4px 100%),
    radial-gradient(circle at 21% 22%, rgba(255, 255, 255, 0.34) 0 1px, transparent 2px 100%),
    radial-gradient(circle at 76% 28%, rgba(255, 255, 255, 0.28) 0 1px, transparent 2px 100%),
    radial-gradient(circle at 70% 78%, rgba(18, 199, 255, 0.24) 0 1px, transparent 2px 100%),
    linear-gradient(rgba(255, 255, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.055) 1px, transparent 1px),
    radial-gradient(ellipse at 49% 51%, rgba(48, 107, 255, 0.6), transparent 38%),
    radial-gradient(ellipse at 64% 54%, rgba(168, 255, 62, 0.22), transparent 34%),
    linear-gradient(145deg, #070b15, #101a33 52%, #070b15);
  background-size: 18px 18px, auto, auto, auto, auto, 28px 28px, 28px 28px, auto, auto, auto;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(2px);
  pointer-events: none;
}

.hero-console::before,
.hero-console::after {
  content: "";
  position: absolute;
  inset: -30%;
  pointer-events: none;
}

.hero-console::before {
  background:
    conic-gradient(from 20deg, transparent 0 12%, rgba(18, 199, 255, 0.2) 18%, transparent 27%, transparent 44%, rgba(168, 255, 62, 0.16) 51%, transparent 62%, transparent 78%, rgba(123, 77, 255, 0.14) 84%, transparent 92%),
    radial-gradient(ellipse at 50% 50%, transparent 0 34%, rgba(18, 199, 255, 0.12) 42%, transparent 62%);
  animation: galaxyDrift 22s linear infinite;
}

.hero-console::after {
  background: linear-gradient(120deg, transparent 0 38%, rgba(255, 255, 255, 0.16) 50%, transparent 62%);
  transform: translateX(-45%) rotate(10deg);
  animation: galaxySweep 7.5s ease-in-out infinite;
}

.console-top {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  width: min(53%, 760px);
  margin-left: auto;
  padding: 34px 42px 0 0;
  color: rgba(255, 255, 255, 0.72);
  font-family: var(--font-mono);
  font-size: 11px;
}

.motion-core {
  position: absolute;
  inset: 70px 32px 86px;
  display: grid;
  place-items: center;
}

.galaxy-field {
  position: absolute;
  inset: 44px -3% 58px 37%;
  display: grid;
  place-items: center;
}

.galaxy-field::before,
.galaxy-field::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.galaxy-field::before {
  width: min(96%, 660px);
  aspect-ratio: 1;
  background:
    conic-gradient(from 90deg, transparent 0 8%, rgba(255, 255, 255, 0.2) 12%, transparent 19%, transparent 34%, rgba(18, 199, 255, 0.18) 40%, transparent 50%, transparent 64%, rgba(168, 255, 62, 0.16) 70%, transparent 80%),
    radial-gradient(circle, rgba(255, 255, 255, 0.18), rgba(48, 107, 255, 0.14) 24%, transparent 66%);
  filter: blur(2px);
  animation: pulse 5s ease-in-out infinite;
}

.galaxy-field::after {
  width: min(122%, 820px);
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 0 120px rgba(48, 107, 255, 0.24), inset 0 0 90px rgba(18, 199, 255, 0.08);
  animation: galaxyTilt 18s ease-in-out infinite;
}

.galaxy-ring {
  position: absolute;
  width: var(--size);
  aspect-ratio: 1;
  border: 1px solid var(--stroke);
  border-radius: 50%;
  transform: rotate(var(--r)) scaleX(var(--sx));
  animation: galaxyOrbit var(--speed) linear infinite;
  box-shadow: 0 0 30px var(--glow);
}

.galaxy-ring::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -4px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--dot);
  box-shadow: 0 0 22px var(--dot);
}

.galaxy-ring i {
  position: absolute;
  left: 42%;
  top: -2%;
  color: rgba(255, 255, 255, 0.64);
  font-family: var(--font-mono);
  font-size: 10px;
  font-style: normal;
  letter-spacing: 0;
  transform: scaleX(calc(1 / var(--sx))) rotate(calc(-1 * var(--r)));
}

.orbit-a {
  --size: min(96%, 660px);
  --r: 18deg;
  --sx: 1.48;
  --speed: 34s;
  --stroke: rgba(255, 255, 255, 0.28);
  --glow: rgba(255, 255, 255, 0.08);
  --dot: #a8ff3e;
}

.orbit-b {
  --size: min(86%, 590px);
  --r: -42deg;
  --sx: 1.78;
  --speed: 46s;
  --stroke: rgba(18, 199, 255, 0.38);
  --glow: rgba(18, 199, 255, 0.12);
  --dot: #12c7ff;
  animation-direction: reverse;
}

.orbit-c {
  --size: min(74%, 510px);
  --r: 72deg;
  --sx: 1.34;
  --speed: 58s;
  --stroke: rgba(168, 255, 62, 0.34);
  --glow: rgba(168, 255, 62, 0.1);
  --dot: #a8ff3e;
}

.orbit-d {
  --size: min(112%, 760px);
  --r: -8deg;
  --sx: 1.12;
  --speed: 78s;
  --stroke: rgba(123, 77, 255, 0.24);
  --glow: rgba(123, 77, 255, 0.12);
  --dot: #7b4dff;
  animation-direction: reverse;
}

.galaxy-core {
  position: relative;
  z-index: 3;
  display: grid;
  place-items: center;
  width: clamp(172px, 24vw, 252px);
  aspect-ratio: 1;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 28%, rgba(255, 255, 255, 0.32), transparent 20%),
    radial-gradient(circle, rgba(48, 107, 255, 0.58), rgba(16, 26, 51, 0.86) 62%, rgba(7, 11, 21, 0.96));
  color: #fff;
  text-align: center;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18), 0 0 80px rgba(48, 107, 255, 0.52), 0 0 140px rgba(168, 255, 62, 0.12);
  animation: coreBreath 4.8s ease-in-out infinite;
}

.galaxy-core strong {
  display: block;
  font-size: clamp(54px, 6vw, 82px);
  line-height: 0.95;
}

.galaxy-core small {
  display: block;
  max-width: 130px;
  color: rgba(255, 255, 255, 0.66);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.45;
}

.planet {
  position: absolute;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 74px;
  height: 74px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.09);
  color: #fff;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.16), 0 0 32px rgba(18, 199, 255, 0.18);
  backdrop-filter: blur(10px);
}

.planet b {
  font-family: var(--font-mono);
  font-size: 18px;
}

.planet small {
  margin-top: -16px;
  color: rgba(255, 255, 255, 0.62);
  font-family: var(--font-mono);
  font-size: 9px;
}

.planet-a {
  left: 9%;
  top: 26%;
}

.planet-b {
  right: 7%;
  top: 35%;
}

.planet-c {
  left: 50%;
  bottom: 4%;
  transform: translateX(-50%);
}

.comet {
  position: absolute;
  z-index: 1;
  width: 230px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, transparent, rgba(18, 199, 255, 0.1), rgba(168, 255, 62, 0.9), transparent);
  filter: drop-shadow(0 0 14px rgba(168, 255, 62, 0.6));
  transform-origin: center;
}

.comet-a {
  top: 24%;
  left: -2%;
  animation: cometPass 6.8s ease-in-out infinite;
}

.comet-b {
  right: -16%;
  bottom: 30%;
  animation: cometPass 9s ease-in-out infinite reverse;
}

.star-dust {
  position: absolute;
  inset: 0;
  opacity: 0.5;
  background-image:
    radial-gradient(circle at 12% 18%, rgba(255, 255, 255, 0.8) 0 1px, transparent 2px),
    radial-gradient(circle at 30% 74%, rgba(18, 199, 255, 0.72) 0 1px, transparent 2px),
    radial-gradient(circle at 78% 22%, rgba(168, 255, 62, 0.7) 0 1px, transparent 2px),
    radial-gradient(circle at 86% 72%, rgba(255, 255, 255, 0.7) 0 1px, transparent 2px),
    radial-gradient(circle at 52% 12%, rgba(255, 255, 255, 0.6) 0 1px, transparent 2px);
  animation: starFloat var(--speed, 18s) linear infinite;
}

.dust-b {
  --speed: 26s;
  transform: rotate(32deg) scale(1.08);
}

.dust-c {
  --speed: 34s;
  transform: rotate(-18deg) scale(0.92);
}

.ring,
.node {
  position: absolute;
  border-radius: 50%;
}

.ring {
  border: 1px solid rgba(255, 255, 255, 0.22);
  transform: rotate(var(--r)) scaleX(var(--sx));
  animation: orbitSpin var(--speed) linear infinite;
}

.ring-a {
  --r: 22deg;
  --sx: 1.25;
  --speed: 24s;
  width: 68%;
  aspect-ratio: 1;
}

.ring-b {
  --r: -38deg;
  --sx: 1.55;
  --speed: 31s;
  width: 56%;
  aspect-ratio: 1;
  border-color: rgba(18, 199, 255, 0.34);
}

.ring-c {
  --r: 72deg;
  --sx: 1.8;
  --speed: 42s;
  width: 42%;
  aspect-ratio: 1;
  border-color: rgba(168, 255, 62, 0.32);
}

.node {
  width: 9px;
  height: 9px;
  background: var(--lime);
  box-shadow: 0 0 26px rgba(168, 255, 62, 0.9);
  animation: pulse 2.2s ease-in-out infinite;
}

.node-a {
  top: 16%;
  left: 24%;
}

.node-b {
  right: 18%;
  top: 42%;
  background: var(--cyan);
  animation-delay: 0.45s;
}

.node-c {
  left: 52%;
  bottom: 12%;
  animation-delay: 0.9s;
}

.core-label {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 170px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  text-align: center;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.14), 0 0 60px rgba(48, 107, 255, 0.38);
  backdrop-filter: blur(8px);
}

.core-label strong {
  display: block;
  font-size: 52px;
  line-height: 0.95;
}

.core-label small {
  display: block;
  max-width: 120px;
  color: rgba(255, 255, 255, 0.62);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.45;
}

.signal-grid {
  position: absolute;
  right: 42px;
  bottom: 42px;
  left: auto;
  width: min(50%, 720px);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.signal-grid span {
  padding: 10px 8px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.74);
  font-family: var(--font-mono);
  font-size: 10px;
  text-align: center;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12);
}

.overview-panel,
.home-roadmap {
  margin: 0 0 28px;
  padding: clamp(28px, 4vw, 46px);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.76);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.overview-panel h2,
.home-roadmap h2 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(30px, 3.8vw, 50px);
  line-height: 1.08;
  letter-spacing: 0;
}

.overview-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 30px;
}

.overview-metrics div,
.roadmap-grid div {
  padding: 18px;
  border-radius: 10px;
  background: linear-gradient(180deg, #fff, #f8fbff);
  box-shadow: inset 0 0 0 1px var(--line), 0 8px 22px rgba(30, 51, 93, 0.06);
}

.overview-metrics strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 34px;
  line-height: 1;
}

.overview-metrics span,
.roadmap-grid span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
}

.training-pipeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 28px;
}

.training-pipeline a {
  position: relative;
  min-height: 150px;
  padding: 20px;
  border-radius: 12px;
  background: #fff;
  box-shadow: inset 0 0 0 1px var(--line-strong), 0 18px 44px rgba(30, 51, 93, 0.08);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.training-pipeline a::after {
  content: "";
  position: absolute;
  top: 50%;
  right: -20px;
  z-index: 2;
  width: 26px;
  height: 1px;
  background: linear-gradient(90deg, var(--blue), var(--lime));
}

.training-pipeline a:last-child::after {
  content: none;
}

.training-pipeline a:hover,
.part-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 26px 58px rgba(30, 51, 93, 0.14), inset 0 0 0 1px rgba(48, 107, 255, 0.2);
}

.training-pipeline span {
  display: inline-flex;
  margin-bottom: 28px;
  color: var(--blue);
  font-family: var(--font-mono);
  font-size: 12px;
}

.training-pipeline strong {
  display: block;
  font-size: 22px;
}

.training-pipeline small {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.part-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  padding: 16px 0 28px;
}

.part-card {
  position: relative;
  min-height: 330px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  padding: 26px;
  border-radius: 16px;
  background: var(--paper);
  box-shadow: var(--shadow-soft), inset 0 0 0 1px var(--line);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.part-card::before {
  content: "";
  position: absolute;
  inset: auto 22px 22px auto;
  width: 118px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: repeating-radial-gradient(circle, rgba(7, 17, 31, 0.12) 0 1px, transparent 2px 16px);
  opacity: 0.55;
  animation: orbitSpin 28s linear infinite;
}

.part-card:nth-child(2) {
  background: linear-gradient(145deg, #101a33, #18264c);
  color: #fff;
}

.part-card:nth-child(2) p,
.part-card:nth-child(2) .part-num {
  color: rgba(255, 255, 255, 0.7);
}

.part-card:nth-child(3) {
  background: linear-gradient(145deg, #ffffff, #f2ffe2);
}

.part-num {
  color: var(--blue);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

.part-card h2 {
  position: relative;
  z-index: 1;
  margin: 54px 0 0;
  font-size: 27px;
  line-height: 1.18;
  letter-spacing: 0;
}

.part-card p {
  position: relative;
  z-index: 1;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 15px;
}

.card-link {
  position: relative;
  z-index: 1;
  width: fit-content;
  margin-top: 30px;
  background: var(--ink);
  color: #fff;
}

.part-card:nth-child(2) .card-link {
  background: var(--lime);
  color: var(--ink);
}

.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 28px;
}

.roadmap-grid strong {
  display: block;
  margin-top: 18px;
  font-size: 18px;
}

.roadmap-grid p {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.lesson-shell {
  width: min(1360px, calc(100vw - 56px));
  padding: 28px 0 82px;
}

.lesson-main {
  min-width: 0;
}

.lesson-content {
  display: grid;
  gap: 18px;
}

.module-banner {
  position: relative;
  min-height: min(560px, calc(100vh - 116px));
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 420px);
  grid-template-rows: 1fr auto;
  gap: 24px 44px;
  align-items: center;
  overflow: hidden;
  padding: clamp(36px, 5vw, 64px);
  border-radius: 18px;
  background:
    linear-gradient(rgba(7, 17, 31, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(7, 17, 31, 0.035) 1px, transparent 1px),
    radial-gradient(circle at 82% 18%, rgba(168, 255, 62, 0.22), transparent 26%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(244, 249, 255, 0.9));
  background-size: 34px 34px, 34px 34px, auto, auto;
  box-shadow: var(--shadow);
}

.module-banner-copy {
  position: relative;
  z-index: 1;
}

.module-banner h1 {
  max-width: 800px;
  margin: 0;
  font-size: clamp(38px, 4.6vw, 68px);
  font-weight: 720;
  line-height: 1.06;
  letter-spacing: 0;
}

.module-title-en {
  max-width: 760px;
  margin: 18px 0 0;
  color: var(--blue);
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.6vw, 20px);
  font-weight: 650;
  line-height: 1.35;
}

.module-summary {
  max-width: 680px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(16px, 1.5vw, 19px);
  line-height: 1.7;
}

.module-banner-visual {
  position: relative;
  z-index: 1;
  min-height: 340px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.07) 1px, transparent 1px),
    radial-gradient(circle at 50% 50%, rgba(48, 107, 255, 0.45), transparent 34%),
    linear-gradient(145deg, #0a1020, #17213f);
  background-size: 30px 30px, 30px 30px, auto, auto;
  box-shadow: 0 26px 70px rgba(8, 18, 40, 0.25), inset 0 0 0 1px rgba(255, 255, 255, 0.12);
}

.banner-ring {
  position: absolute;
  width: 64%;
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 50%;
  transform: rotate(var(--r, 0deg)) scaleX(var(--sx, 1.5));
  animation: orbitSpin var(--speed, 30s) linear infinite;
}

.ring-one {
  --r: 28deg;
  --sx: 1.45;
  --speed: 28s;
}

.ring-two {
  --r: -42deg;
  --sx: 1.75;
  --speed: 38s;
  border-color: rgba(18, 199, 255, 0.32);
}

.ring-three {
  --r: 78deg;
  --sx: 1.2;
  --speed: 48s;
  border-color: rgba(168, 255, 62, 0.32);
}

.banner-core {
  position: relative;
  z-index: 1;
  display: grid;
  width: 132px;
  aspect-ratio: 1;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 42px;
  font-weight: 760;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18), 0 0 54px rgba(48, 107, 255, 0.42);
  backdrop-filter: blur(10px);
}

.module-stats {
  position: relative;
  z-index: 1;
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.module-stats div {
  padding: 16px 18px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.74);
  box-shadow: inset 0 0 0 1px var(--line), 0 10px 24px rgba(30, 51, 93, 0.08);
}

.module-stats strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 28px;
  line-height: 1;
}

.module-stats span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
}

.training-screen {
  position: relative;
  min-height: auto;
  overflow: clip;
  padding: clamp(26px, 3vw, 42px);
  scroll-margin-top: 92px;
  border-radius: 16px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(250, 253, 255, 0.94)),
    radial-gradient(circle at 92% 18%, rgba(48, 107, 255, 0.1), transparent 28%);
  box-shadow: 0 18px 50px rgba(30, 51, 93, 0.1), inset 0 0 0 1px rgba(7, 17, 31, 0.08);
}

.training-screen::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(7, 17, 31, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(7, 17, 31, 0.025) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(90deg, transparent, #000 32%, #000 100%);
}

.training-screen:nth-of-type(4n + 1) {
  background:
    radial-gradient(circle at 88% 20%, rgba(168, 255, 62, 0.16), transparent 26%),
    linear-gradient(145deg, #101a33, #18264c 64%, #0b1020);
  color: #fff;
}

.training-screen:nth-of-type(4n + 1) p,
.training-screen:nth-of-type(4n + 1) li,
.training-screen:nth-of-type(4n + 1) h3,
.training-screen:nth-of-type(4n + 1) h4 {
  color: rgba(255, 255, 255, 0.88);
}

.training-screen:nth-of-type(4n + 1) .screen-kicker,
.training-screen:nth-of-type(4n + 1) .screen-subtitle,
.training-screen:nth-of-type(4n + 1) .title-en {
  color: rgba(255, 255, 255, 0.72);
}

.training-screen h2,
.training-screen h3,
.training-screen h4 {
  position: relative;
  z-index: 1;
  max-width: 980px;
  margin: 0;
  letter-spacing: 0;
  line-height: 1.18;
}

.training-screen h2 {
  max-width: 900px;
  font-size: clamp(28px, 3.1vw, 46px);
  font-weight: 720;
  line-height: 1.12;
}

.title-en {
  position: relative;
  z-index: 1;
  max-width: 820px;
  margin: 10px 0 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: clamp(12px, 1.1vw, 15px);
  font-weight: 600;
  line-height: 1.45;
}

.screen-subtitle {
  position: relative;
  z-index: 1;
  max-width: 850px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 2.2vw, 24px);
}

.screen-body {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin-top: 16px;
}

.content-block {
  min-width: 0;
}

.screen-visual {
  position: relative;
  z-index: 1;
  width: min(100%, 720px);
  margin: clamp(14px, 1.8vw, 20px) 0 0;
  overflow: hidden;
  border-radius: 16px;
  background:
    linear-gradient(rgba(7, 17, 31, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(7, 17, 31, 0.03) 1px, transparent 1px),
    rgba(255, 255, 255, 0.72);
  background-size: 28px 28px;
  box-shadow: inset 0 0 0 1px var(--line), 0 24px 56px rgba(30, 51, 93, 0.12);
}

.screen-visual + .screen-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  max-width: 860px;
}

.screen-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(110deg, transparent 0 42%, rgba(255, 255, 255, 0.42) 50%, transparent 58%);
  transform: translateX(-100%);
  animation: visualSheen 7s ease-in-out infinite;
}

.screen-visual img {
  display: block;
  width: 100%;
  height: auto;
}

.training-screen:nth-of-type(4n + 1) .screen-visual {
  background: rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12), 0 24px 56px rgba(0, 0, 0, 0.18);
}

.training-screen h3 {
  margin-top: 20px;
  font-size: clamp(20px, 2vw, 28px);
  font-weight: 680;
}

.training-screen h4 {
  margin-top: 14px;
  color: #22334d;
  font-size: 15px;
  font-weight: 680;
}

.screen-body h4 {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 6px 10px;
  border-radius: 6px;
  background: rgba(48, 107, 255, 0.08);
  color: var(--blue) !important;
  font-family: var(--font-mono);
  font-size: 11px !important;
  font-weight: 700;
  line-height: 1.35;
  box-shadow: inset 0 0 0 1px rgba(48, 107, 255, 0.14);
}

.training-screen p,
.training-screen li {
  max-width: 940px;
  color: #22334d;
  font-size: clamp(14px, 1.08vw, 16px);
  overflow-wrap: anywhere;
}

.training-screen p {
  margin: 10px 0 0;
}

.training-screen ul {
  max-width: 1000px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.training-screen li {
  position: relative;
  min-height: 46px;
  padding: 12px 14px 12px 38px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.74);
  box-shadow: inset 0 0 0 1px var(--line), 0 8px 18px rgba(30, 51, 93, 0.05);
}

.training-screen li::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 19px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--lime));
  box-shadow: 0 0 14px rgba(48, 107, 255, 0.28);
}

.training-screen:nth-of-type(4n + 1) li {
  background: rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12);
}

.choice-list li {
  background: linear-gradient(135deg, rgba(168, 255, 62, 0.2), rgba(48, 107, 255, 0.08));
}

body[data-content="content/part-1.html"] .training-screen {
  padding: clamp(28px, 3.2vw, 46px);
}

body[data-content="content/part-1.html"] .screen-body {
  gap: 12px;
  margin-top: 18px;
}

body[data-content="content/part-1.html"] .training-screen p,
body[data-content="content/part-1.html"] .training-screen li {
  font-size: clamp(16px, 1.18vw, 18px);
  line-height: 1.68;
  font-weight: 530;
}

body[data-content="content/part-1.html"] .screen-body h4 {
  padding: 7px 11px;
  font-size: 12px !important;
  font-weight: 760;
}

body[data-content="content/part-1.html"] .training-screen ul {
  gap: 11px;
}

body[data-content="content/part-1.html"] .training-screen li {
  min-height: 56px;
  padding: 14px 16px 14px 42px;
  border-radius: 12px;
}

body[data-content="content/part-1.html"] .training-screen li::before {
  left: 18px;
  top: 24px;
  width: 9px;
  height: 9px;
}

body[data-content="content/part-1.html"] .choice-list {
  gap: 14px;
}

body[data-content="content/part-1.html"] .choice-list li {
  min-height: 70px;
  display: flex;
  align-items: center;
  padding: 16px 18px 16px 48px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(237, 248, 255, 0.9));
  color: #10233e;
  font-size: clamp(18px, 1.35vw, 21px);
  font-weight: 780;
  box-shadow: inset 0 0 0 1px rgba(48, 107, 255, 0.18), 0 14px 30px rgba(30, 51, 93, 0.1);
}

body[data-content="content/part-1.html"] .choice-list li::before {
  top: 50%;
  transform: translateY(-50%);
  background: linear-gradient(135deg, var(--blue), var(--cyan));
}

body[data-content="content/part-1.html"] .quote-heading + p,
body[data-content="content/part-1.html"] .interactive-heading + p,
body[data-content="content/part-1.html"] .note-heading + p {
  font-size: clamp(17px, 1.28vw, 20px);
  line-height: 1.68;
}

body[data-content="content/part-1.html"] .quote-heading + p {
  font-size: clamp(19px, 1.55vw, 23px);
  font-weight: 780;
}

body[data-content="content/part-1.html"] .training-screen pre {
  font-size: clamp(13px, 1vw, 15px);
  line-height: 1.72;
}

body[data-content="content/part-1.html"] .training-screen table {
  font-size: 15px;
}

body[data-content="content/part-1.html"] .training-screen th {
  font-size: 13px;
}

body[data-content="content/part-1.html"] .training-screen:nth-of-type(4n + 1) .choice-list li {
  background: rgba(255, 255, 255, 0.12);
  color: #f7fbff;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18), 0 14px 30px rgba(0, 0, 0, 0.16);
}

@media (min-width: 1121px) {
  .site-header {
    min-height: 64px;
    padding: 9px 30px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
    font-size: 15px;
  }

  .brand small {
    margin-top: 3px;
    font-size: 10px;
  }

  .top-nav a {
    min-height: 30px;
    padding: 6px 10px;
    font-size: 12px;
  }

  .lesson-shell {
    width: min(1440px, calc(100vw - 36px));
    padding: 16px 0 68px;
  }

  .lesson-content {
    gap: 16px;
  }

  .module-banner {
    min-height: calc(100vh - 96px);
    padding: clamp(30px, 3.8vw, 54px);
    grid-template-columns: minmax(0, 1fr) minmax(260px, 390px);
    gap: 18px 36px;
  }

  .module-banner h1 {
    font-size: clamp(34px, 4vw, 58px);
  }

  .module-summary {
    max-width: 620px;
    margin-top: 18px;
    font-size: clamp(15px, 1.2vw, 17px);
    line-height: 1.55;
  }

  .module-banner-visual {
    min-height: 300px;
  }

  .module-stats div {
    padding: 13px 16px;
  }

  .training-screen {
    min-height: calc(100vh - 96px);
    max-height: calc(100vh - 96px);
    display: grid;
    grid-template-rows: auto auto auto minmax(0, 1fr);
    align-content: start;
    padding: clamp(20px, 2.2vw, 32px);
    scroll-margin-top: 74px;
  }

  .screen-kicker {
    margin-bottom: 10px;
    font-size: 10px;
    line-height: 1.25;
  }

  .training-screen h2 {
    max-width: 1080px;
    font-size: clamp(24px, 2.35vw, 36px);
    line-height: 1.08;
  }

  .title-en {
    margin-top: 7px;
    font-size: clamp(10px, 0.82vw, 13px);
    line-height: 1.25;
  }

  .screen-subtitle {
    margin-top: 10px;
    font-size: clamp(15px, 1.35vw, 19px);
    line-height: 1.35;
  }

  .screen-body {
    min-height: 0;
    align-content: start;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin-top: 12px;
    overflow: clip;
  }

  .screen-visual {
    width: min(100%, 560px);
    max-height: 285px;
    margin-top: 12px;
    border-radius: 12px;
  }

  .screen-visual img {
    max-height: 285px;
    object-fit: contain;
  }

  .screen-visual + .screen-body {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-width: none;
  }

  body[data-content="content/part-3.html"] .training-screen {
    grid-template-columns: minmax(0, 0.96fr) minmax(420px, 1.04fr);
    grid-template-rows: auto auto auto minmax(0, 1fr);
    column-gap: clamp(18px, 2vw, 32px);
  }

  body[data-content="content/part-3.html"] .screen-kicker,
  body[data-content="content/part-3.html"] .training-screen h2,
  body[data-content="content/part-3.html"] .title-en {
    grid-column: 1 / -1;
  }

  body[data-content="content/part-3.html"] .screen-visual {
    grid-column: 1;
    grid-row: 4;
    width: 100%;
    max-height: none;
    margin-top: 12px;
    align-self: stretch;
    display: grid;
    place-items: center;
  }

  body[data-content="content/part-3.html"] .screen-visual img {
    width: 100%;
    height: 100%;
    max-height: calc(100vh - 230px);
    object-fit: contain;
  }

  body[data-content="content/part-3.html"] .screen-body {
    grid-column: 2;
    grid-row: 4;
    grid-template-columns: 1fr;
    align-self: stretch;
    overflow: clip;
  }

  .content-block {
    display: flex;
    min-height: 0;
    flex-direction: column;
    gap: 8px;
    padding: 12px 14px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.58);
    box-shadow: inset 0 0 0 1px rgba(7, 17, 31, 0.1), 0 10px 24px rgba(30, 51, 93, 0.055);
  }

  .content-block[data-type="question"] {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(240, 247, 255, 0.78));
    box-shadow: inset 0 0 0 1px rgba(48, 107, 255, 0.16), 0 14px 28px rgba(30, 51, 93, 0.08);
  }

  .content-block[data-type="answer"] {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(242, 255, 225, 0.8));
    box-shadow: inset 0 0 0 1px rgba(82, 148, 20, 0.16), 0 12px 26px rgba(30, 51, 93, 0.06);
  }

  .content-block[data-type="memory"] {
    background: linear-gradient(135deg, rgba(7, 17, 31, 0.94), rgba(19, 31, 60, 0.92));
    color: #fff;
    box-shadow: 0 18px 38px rgba(7, 17, 31, 0.16), inset 0 0 0 1px rgba(255, 255, 255, 0.12);
  }

  .content-block[data-type="memory"] p,
  .content-block[data-type="memory"] li {
    color: rgba(255, 255, 255, 0.9) !important;
  }

  .content-block[data-type="talk"] {
    background: rgba(255, 255, 255, 0.72);
  }

  .training-screen:nth-of-type(4n + 1) .content-block {
    background: rgba(255, 255, 255, 0.075);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.11), 0 8px 20px rgba(0, 0, 0, 0.1);
  }

  .content-block[data-kind="table"],
  .content-block[data-kind="code"] {
    grid-column: 1 / -1;
  }

  .training-screen[data-density="dense"] .screen-body,
  .training-screen[data-density="compact"] .screen-body,
  .training-screen[data-density="max"] .screen-body,
  .training-screen[data-density="ultra"] .screen-body {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
  }

  .training-screen[data-density="dense"] .content-block[data-kind="table"],
  .training-screen[data-density="compact"] .content-block[data-kind="table"],
  .training-screen[data-density="max"] .content-block[data-kind="table"],
  .training-screen[data-density="dense"] .content-block[data-kind="code"],
  .training-screen[data-density="compact"] .content-block[data-kind="code"],
  .training-screen[data-density="max"] .content-block[data-kind="code"] {
    grid-column: span 2;
  }

  .training-screen[data-density="max"] .screen-body {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 7px;
  }

  .training-screen[data-density="max"] .content-block[data-kind="table"],
  .training-screen[data-density="max"] .content-block[data-kind="code"] {
    grid-column: span 2;
  }

  .training-screen[data-density="ultra"] .screen-body {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    align-items: start;
    gap: 4px;
    margin-top: 5px;
  }

  .training-screen[data-density="ultra"] .content-block {
    grid-column: span 3;
    width: 100%;
    margin: 0 0 4px;
    gap: 3px;
    padding: 6px 7px;
    border-radius: 7px;
    align-self: start;
  }

  .training-screen[data-density="ultra"] .content-block[data-kind="table"],
  .training-screen[data-density="ultra"] .content-block[data-kind="code"] {
    grid-column: span 3;
  }

  .training-screen[data-density="ultra"] .content-block:nth-child(1) {
    grid-column: span 4;
  }

  .training-screen[data-density="ultra"] .content-block:nth-child(3) {
    grid-column: span 5;
  }

  .training-screen[data-density="ultra"] .content-block:nth-child(6) {
    grid-column: span 4;
  }

  .training-screen[data-density="ultra"] .content-block:nth-child(7) {
    grid-column: span 3;
  }

  .training-screen[data-density="ultra"] h4,
  .training-screen[data-density="ultra"] .screen-body h4,
  .training-screen[data-density="ultra"] .note-heading,
  .training-screen[data-density="ultra"] .quote-heading,
  .training-screen[data-density="ultra"] .interactive-heading {
    padding: 0 0 3px;
    font-size: clamp(11px, 0.86vw, 13px) !important;
    line-height: 1.15;
  }

  .training-screen[data-density="compact"] .screen-body h4,
  .training-screen[data-density="max"] .screen-body h4,
  .training-screen[data-density="compact"] .note-heading,
  .training-screen[data-density="max"] .note-heading,
  .training-screen[data-density="compact"] .quote-heading,
  .training-screen[data-density="max"] .quote-heading,
  .training-screen[data-density="compact"] .interactive-heading,
  .training-screen[data-density="max"] .interactive-heading {
    font-size: clamp(13px, 0.98vw, 15px) !important;
  }

  .training-screen[data-density="ultra"] .screen-kicker {
    margin-bottom: 4px;
    font-size: 9px;
  }

  .training-screen[data-density="ultra"] h2 {
    font-size: clamp(20px, 1.8vw, 26px);
  }

  .training-screen[data-density="ultra"] .title-en {
    margin-top: 4px;
  }

  .training-screen[data-density="ultra"] p,
  .training-screen[data-density="ultra"] li {
    font-size: clamp(9px, 0.68vw, 11px);
    line-height: 1.16;
  }

  .training-screen[data-density="dense"] .content-block,
  .training-screen[data-density="compact"] .content-block,
  .training-screen[data-density="max"] .content-block {
    gap: 6px;
    padding: 10px 11px;
  }

  .training-screen[data-density="dense"] p,
  .training-screen[data-density="compact"] p,
  .training-screen[data-density="max"] p,
  .training-screen[data-density="dense"] li,
  .training-screen[data-density="compact"] li,
  .training-screen[data-density="max"] li {
    line-height: 1.3;
  }

  .training-screen[data-density="ultra"] ul {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 3px;
  }

  .training-screen[data-density="ultra"] li {
    padding: 4px 5px 4px 15px;
    border-radius: 5px;
  }

  .training-screen[data-density="ultra"] li::before {
    left: 7px;
    top: 8px;
    width: 4px;
    height: 4px;
  }

  .training-screen[data-density="ultra"] .flow-line {
    padding: 6px;
  }

  .training-screen[data-density="ultra"] .flow-step {
    min-height: 20px;
    padding: 4px 6px;
    font-size: 9px;
  }

  .training-screen[data-density="ultra"] table {
    font-size: 8px;
    line-height: 1.12;
  }

  .training-screen[data-density="ultra"] th,
  .training-screen[data-density="ultra"] td {
    padding: 4px 5px;
  }

  body[data-content="content/part-3.html"] .training-screen[data-density] .screen-body {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  body[data-content="content/part-3.html"] .training-screen[data-density="compact"] .screen-body,
  body[data-content="content/part-3.html"] .training-screen[data-density="max"] .screen-body,
  body[data-content="content/part-3.html"] .training-screen[data-density="ultra"] .screen-body {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-content: start;
  }

  body[data-content="content/part-3.html"] .training-screen[data-density="compact"] .content-block[data-kind="table"],
  body[data-content="content/part-3.html"] .training-screen[data-density="max"] .content-block[data-kind="table"],
  body[data-content="content/part-3.html"] .training-screen[data-density="ultra"] .content-block[data-kind="table"] {
    grid-column: 1 / -1;
  }

  body[data-content="content/part-3.html"] .training-screen[data-density="compact"] .content-block,
  body[data-content="content/part-3.html"] .training-screen[data-density="max"] .content-block,
  body[data-content="content/part-3.html"] .training-screen[data-density="ultra"] .content-block {
    gap: 5px;
    padding: 8px 9px;
  }

  body[data-content="content/part-3.html"] .training-screen[data-density="compact"] p,
  body[data-content="content/part-3.html"] .training-screen[data-density="max"] p,
  body[data-content="content/part-3.html"] .training-screen[data-density="ultra"] p,
  body[data-content="content/part-3.html"] .training-screen[data-density="compact"] li,
  body[data-content="content/part-3.html"] .training-screen[data-density="max"] li,
  body[data-content="content/part-3.html"] .training-screen[data-density="ultra"] li {
    font-size: clamp(10px, 0.78vw, 12px);
    line-height: 1.24;
  }

  .screen-body h4,
  .note-heading,
  .quote-heading,
  .interactive-heading {
    margin-top: 0;
    padding: 0 0 7px;
    border-radius: 0;
    background: transparent;
    color: #17345f !important;
    font-family: var(--font-body);
    font-size: clamp(15px, 1.16vw, 18px) !important;
    font-weight: 780;
    line-height: 1.18;
    box-shadow: none;
    border-bottom: 1px solid rgba(7, 17, 31, 0.1);
    text-transform: none;
  }

  .content-block[data-type="memory"] h4,
  .training-screen:nth-of-type(4n + 1) .content-block[data-type="memory"] h4 {
    color: #a8ff3e !important;
    border-bottom-color: rgba(255, 255, 255, 0.18);
  }

  .content-block[data-type="answer"] h4 {
    color: #235f17 !important;
  }

  .content-block[data-type="question"] h4,
  .interactive-heading {
    color: var(--blue) !important;
  }

  .training-screen h3 {
    margin-top: 0;
    font-size: clamp(16px, 1.35vw, 21px);
    line-height: 1.15;
  }

  .training-screen h4 {
    margin-top: 0;
  }

  .training-screen p,
  .training-screen li {
    font-size: clamp(13px, 0.98vw, 15px);
    line-height: 1.42;
  }

  .training-screen p {
    margin: 0;
  }

  .training-screen ul {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
    margin: 0;
  }

  .training-screen li {
    min-height: 0;
    padding: 9px 10px 9px 28px;
    border-radius: 8px;
  }

  .training-screen li::before {
    left: 11px;
    top: 13px;
    width: 6px;
    height: 6px;
  }

  .quote-heading + p {
    font-size: clamp(15px, 1.18vw, 18px);
    line-height: 1.32;
  }

  .flow-line {
    padding: 8px 9px;
    border-radius: 8px;
  }

  .enhanced-flow {
    gap: 6px;
  }

  .flow-step {
    min-height: 24px;
    padding: 5px 8px;
    font-size: 10px;
  }

  .flow-step:not(:last-child) {
    padding-right: 20px;
  }

  .training-screen pre {
    max-height: 100%;
    margin: 0;
    padding: 10px;
    border-radius: 9px;
    font-size: clamp(10px, 0.72vw, 12px);
    line-height: 1.35;
  }

  .table-wrap {
    margin: 0;
    border-radius: 9px;
  }

  .training-screen table {
    min-width: 0;
    font-size: clamp(10px, 0.78vw, 12px);
    line-height: 1.25;
  }

  .training-screen th,
  .training-screen td {
    padding: 7px 8px;
  }

  .training-screen th {
    font-size: 10px;
  }

  body[data-content="content/part-1.html"] .training-screen {
    padding: clamp(20px, 2.2vw, 32px);
  }

  body[data-content="content/part-1.html"] .screen-body {
    gap: 8px;
    margin-top: 12px;
  }

  body[data-content="content/part-1.html"] .training-screen p,
  body[data-content="content/part-1.html"] .training-screen li {
    font-size: clamp(13px, 0.98vw, 15px);
    line-height: 1.34;
    font-weight: 530;
  }

  body[data-content="content/part-1.html"] .content-block[data-type="question"] > p {
    color: #10233e;
    font-size: clamp(15px, 1.12vw, 18px);
    font-weight: 760;
    line-height: 1.34;
  }

  body[data-content="content/part-1.html"] .content-block[data-type="question"] > p:not(:last-of-type) {
    margin-bottom: 2px;
  }

  body[data-content="content/part-1.html"] .screen-body h4,
  body[data-content="content/part-1.html"] .note-heading,
  body[data-content="content/part-1.html"] .quote-heading,
  body[data-content="content/part-1.html"] .interactive-heading {
    font-size: clamp(15px, 1.16vw, 18px) !important;
    font-weight: 780;
    line-height: 1.18;
  }

  body[data-content="content/part-1.html"] .content-block[data-type="question"]:not(:has(h4))::before {
    content: "现场选择";
    display: block;
    padding: 0 0 7px;
    border-bottom: 1px solid rgba(48, 107, 255, 0.16);
    color: var(--blue);
    font-size: clamp(15px, 1.16vw, 18px);
    font-weight: 780;
    line-height: 1.18;
  }

  body[data-content="content/part-1.html"] .choice-list {
    gap: 8px;
  }

  body[data-content="content/part-1.html"] .choice-list li {
    min-height: 38px;
    padding: 8px 10px 8px 32px;
    border-radius: 9px;
    font-size: clamp(13px, 1vw, 15px);
    line-height: 1.22;
    font-weight: 680;
    background: rgba(255, 255, 255, 0.82);
    box-shadow: inset 0 0 0 1px rgba(48, 107, 255, 0.14), 0 8px 18px rgba(30, 51, 93, 0.05);
  }

  body[data-content="content/part-1.html"] .training-screen li::before {
    left: 12px;
    top: 16px;
    width: 7px;
    height: 7px;
  }

  body[data-content="content/part-1.html"] .choice-list li::before {
    top: 50%;
  }

  body[data-content="content/part-1.html"] .quote-heading + p,
  body[data-content="content/part-1.html"] .interactive-heading + p,
  body[data-content="content/part-1.html"] .note-heading + p {
    font-size: clamp(13px, 1vw, 16px);
    line-height: 1.36;
  }

  body[data-content="content/part-1.html"] .quote-heading + p {
    font-size: clamp(14px, 1.08vw, 17px);
  }

  body[data-content="content/part-1.html"] .content-block[data-type="answer"] p,
  body[data-content="content/part-1.html"] .content-block[data-type="memory"] p {
    font-size: clamp(14px, 1.05vw, 17px);
    font-weight: 760;
    line-height: 1.32;
  }

  body[data-content="content/part-1.html"] .training-screen pre {
    font-size: clamp(10px, 0.76vw, 12px);
    line-height: 1.32;
  }

  body[data-content="content/part-1.html"] .training-screen table {
    font-size: clamp(10px, 0.78vw, 12px);
  }

  body[data-content="content/part-1.html"] .training-screen th {
    font-size: 10px;
  }

  body[data-content="content/part-1.html"] .training-screen[data-density="ultra"] p,
  body[data-content="content/part-1.html"] .training-screen[data-density="ultra"] li {
    font-size: clamp(9px, 0.68vw, 11px);
    line-height: 1.2;
  }

  body[data-content="content/part-1.html"] .training-screen[data-density="ultra"] .choice-list li {
    min-height: 0;
    padding: 6px 7px 6px 18px;
    font-size: clamp(9px, 0.7vw, 11px);
  }

  body[data-content="content/part-1.html"] .training-screen[data-density="ultra"] {
    padding: 8px 14px;
  }

  @media (min-height: 820px) {
    .training-screen {
      min-height: calc(100vh - 104px);
      max-height: calc(100vh - 104px);
      padding: clamp(24px, 2.5vw, 36px);
    }

    .training-screen h2 {
      font-size: clamp(27px, 2.55vw, 40px);
    }

    .title-en {
      margin-top: 8px;
      font-size: clamp(11px, 0.9vw, 14px);
    }

    .screen-body {
      margin-top: 14px;
    }

    .training-screen[data-density="ultra"] {
      padding: 18px 22px;
    }

    .training-screen[data-density="ultra"] .screen-body {
      grid-template-columns: repeat(12, minmax(0, 1fr));
      gap: 8px;
      margin-top: 10px;
    }

    .training-screen[data-density="ultra"] .content-block {
      gap: 5px;
      padding: 8px 10px;
      border-radius: 8px;
    }

    .training-screen[data-density="ultra"] h2 {
      font-size: clamp(24px, 2.2vw, 34px);
    }

    .training-screen[data-density="ultra"] .title-en {
      margin-top: 5px;
    }

    .training-screen[data-density="ultra"] p,
    .training-screen[data-density="ultra"] li,
    body[data-content="content/part-1.html"] .training-screen[data-density="ultra"] p,
    body[data-content="content/part-1.html"] .training-screen[data-density="ultra"] li {
      font-size: clamp(10px, 0.78vw, 12px);
      line-height: 1.24;
    }

    body[data-content="content/part-1.html"] .training-screen[data-density="ultra"] .choice-list li {
      padding: 7px 8px 7px 20px;
      font-size: clamp(10px, 0.8vw, 12px);
    }

    .training-screen[data-density="ultra"] table {
      font-size: 10px;
      line-height: 1.18;
    }

    .training-screen[data-density="ultra"] th,
    .training-screen[data-density="ultra"] td {
      padding: 6px 7px;
    }
  }

  .screen-controls {
    position: fixed;
    right: 18px;
    bottom: 18px;
    margin: 0;
    padding: 6px;
    font-size: 12px;
    opacity: 0.72;
    transform: translateX(0);
    transition: opacity 160ms ease, transform 160ms ease;
  }

  .screen-controls:hover {
    opacity: 1;
    transform: translateY(-1px);
  }

  .copy-btn,
  .nav-btn {
    min-height: 32px;
    padding: 6px 12px;
  }
}

.training-screen pre {
  max-width: 940px;
  overflow: auto;
  margin: 12px 0 0;
  padding: 16px;
  border-radius: 12px;
  background: #0b1222;
  color: rgba(255, 255, 255, 0.88);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.6;
  white-space: pre-wrap;
  box-shadow: 0 24px 52px rgba(7, 17, 31, 0.2), inset 0 0 0 1px rgba(255, 255, 255, 0.1);
}

.table-wrap {
  width: 100%;
  min-width: 0;
  max-width: 100%;
  overflow-x: auto;
  margin: 14px 0 0;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: inset 0 0 0 1px var(--line), 0 16px 34px rgba(30, 51, 93, 0.08);
}

.training-screen table {
  width: 100%;
  min-width: 640px;
  margin: 0;
  border-collapse: collapse;
  font-size: 14px;
}

.training-screen th,
.training-screen td {
  padding: 12px 14px;
  border-bottom: 1px solid rgba(7, 17, 31, 0.08);
  border-right: 1px solid rgba(7, 17, 31, 0.06);
  text-align: left;
  vertical-align: top;
}

.training-screen th:last-child,
.training-screen td:last-child {
  border-right: 0;
}

.training-screen tr:last-child td {
  border-bottom: 0;
}

.training-screen th {
  background: linear-gradient(180deg, #f7fbff, #eef5ff);
  color: #17253d;
  font-size: 12px;
  font-weight: 720;
}

.comparison-wrap table tr:not(:first-child) td:first-child {
  background: rgba(96, 112, 137, 0.06);
}

.comparison-wrap table tr:not(:first-child) td:last-child {
  background: linear-gradient(90deg, rgba(168, 255, 62, 0.14), rgba(18, 199, 255, 0.05));
}

.training-screen:nth-of-type(4n + 1) .table-wrap {
  background: rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.13), 0 18px 36px rgba(0, 0, 0, 0.16);
}

.training-screen:nth-of-type(4n + 1) th {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.training-screen:nth-of-type(4n + 1) td,
.training-screen:nth-of-type(4n + 1) th {
  border-color: rgba(255, 255, 255, 0.1);
}

.note-heading,
.quote-heading,
.interactive-heading {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 6px 9px;
  border-radius: 6px;
  background: rgba(48, 107, 255, 0.08);
  color: var(--blue) !important;
  font-family: var(--font-mono);
  font-size: 11px !important;
  font-weight: 700;
  text-transform: uppercase;
  box-shadow: inset 0 0 0 1px rgba(48, 107, 255, 0.14);
}

.quote-heading {
  background: rgba(168, 255, 62, 0.24);
  color: #315900 !important;
  box-shadow: inset 0 0 0 1px rgba(116, 183, 23, 0.22);
}

.interactive-heading {
  background: rgba(123, 77, 255, 0.08);
  color: var(--violet) !important;
  box-shadow: inset 0 0 0 1px rgba(123, 77, 255, 0.16);
}

.note-heading + p,
.quote-heading + p,
.interactive-heading + p,
.quote-heading + ul,
.interactive-heading + ul {
  max-width: 960px;
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.76);
  box-shadow: inset 0 0 0 1px var(--line), 0 14px 30px rgba(30, 51, 93, 0.06);
}

.training-screen:nth-of-type(4n + 1) .note-heading + p,
.training-screen:nth-of-type(4n + 1) .quote-heading + p,
.training-screen:nth-of-type(4n + 1) .interactive-heading + p {
  background: rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12);
}

.training-screen:nth-of-type(4n + 1) .note-heading,
.training-screen:nth-of-type(4n + 1) .quote-heading,
.training-screen:nth-of-type(4n + 1) .interactive-heading,
.training-screen:nth-of-type(4n + 1) .screen-body h4 {
  background: rgba(255, 255, 255, 0.14);
  color: #f7fbff !important;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18), 0 10px 28px rgba(0, 0, 0, 0.12);
}

.quote-heading + p {
  font-size: clamp(17px, 1.5vw, 21px);
  font-weight: 720;
  line-height: 1.36;
}

.flow-line {
  max-width: 1000px;
  padding: 13px 15px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.92), rgba(241, 247, 255, 0.86));
  box-shadow: inset 0 0 0 1px var(--line), 0 14px 30px rgba(30, 51, 93, 0.06);
  font-weight: 620;
}

.enhanced-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.flow-step {
  position: relative;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  padding: 7px 10px;
  border-radius: 999px;
  background: #fff;
  color: #17253d;
  font-size: 12px;
  max-width: 100%;
  white-space: normal;
  overflow-wrap: anywhere;
  box-shadow: inset 0 0 0 1px rgba(7, 17, 31, 0.11), 0 8px 18px rgba(30, 51, 93, 0.06);
  animation: stepIn 520ms ease both;
  animation-delay: calc(var(--step-index) * 60ms);
}

.flow-step:not(:last-child)::after {
  content: "→";
  position: absolute;
  right: 9px;
  color: var(--blue);
  font-family: var(--font-mono);
  font-size: 12px;
}

.flow-step:not(:last-child) {
  padding-right: 24px;
}

.copy-row {
  display: flex;
  justify-content: flex-end;
  max-width: 1000px;
  margin-top: 8px;
}

.copy-btn,
.nav-btn {
  min-height: 38px;
  padding: 8px 14px;
  border: 0;
  border-radius: 7px;
  background: #fff;
  color: var(--ink);
  cursor: pointer;
  box-shadow: inset 0 0 0 1px var(--line-strong), 0 8px 18px rgba(30, 51, 93, 0.08);
  transition: transform 160ms ease, background 160ms ease, color 160ms ease;
}

.copy-btn:hover,
.nav-btn:hover {
  transform: translateY(-1px);
  background: var(--ink);
  color: #fff;
}

.screen-controls {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 20;
  width: fit-content;
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  padding: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 18px 44px rgba(24, 45, 83, 0.16), inset 0 0 0 1px rgba(7, 17, 31, 0.1);
  backdrop-filter: blur(14px);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 12px;
  opacity: 0.72;
  transition: opacity 160ms ease, transform 160ms ease;
}

.screen-controls:hover {
  opacity: 1;
  transform: translateY(-1px);
}

.screen-orbit {
  position: absolute;
  right: clamp(18px, 4vw, 54px);
  top: clamp(18px, 4vw, 48px);
  width: clamp(110px, 14vw, 200px);
  aspect-ratio: 1;
  pointer-events: none;
  opacity: 0.26;
  animation: orbitSpin 22s linear infinite;
}

.screen-orbit::before,
.screen-orbit::after,
.screen-orbit span,
.screen-orbit i {
  content: "";
  position: absolute;
  inset: 20%;
  border: 1px solid currentColor;
  border-radius: 50%;
  transform: rotate(var(--r, 0deg)) scaleX(1.7);
}

.screen-orbit::after {
  --r: 64deg;
  border-color: var(--blue);
}

.screen-orbit span:nth-child(1) {
  --r: -42deg;
}

.screen-orbit span:nth-child(2) {
  inset: 45%;
  border: 0;
  background: var(--lime);
  box-shadow: 0 0 22px rgba(168, 255, 62, 0.8);
  transform: none;
}

.screen-orbit span:nth-child(3) {
  display: none;
}

.screen-orbit i {
  inset: 8%;
  border-color: rgba(18, 199, 255, 0.45);
  transform: rotate(18deg) scaleX(1.15);
}

@keyframes orbitSpin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes brandPlanetSpin {
  0% {
    transform: perspective(120px) rotateY(0deg);
  }
  50% {
    transform: perspective(120px) rotateY(180deg);
  }
  100% {
    transform: perspective(120px) rotateY(360deg);
  }
}

@keyframes galaxyOrbit {
  to {
    transform: rotate(calc(var(--r) + 360deg)) scaleX(var(--sx));
  }
}

@keyframes galaxyDrift {
  to {
    transform: rotate(360deg);
  }
}

@keyframes galaxyTilt {
  0%,
  100% {
    transform: rotate(-2deg) scale(1);
  }
  50% {
    transform: rotate(3deg) scale(1.04);
  }
}

@keyframes galaxySweep {
  0%,
  48% {
    transform: translateX(-55%) rotate(10deg);
    opacity: 0;
  }
  60% {
    opacity: 1;
  }
  82%,
  100% {
    transform: translateX(55%) rotate(10deg);
    opacity: 0;
  }
}

@keyframes heroSignalSweep {
  0%,
  45% {
    transform: translateX(-42%);
    opacity: 0.54;
  }
  62% {
    opacity: 0.9;
  }
  100% {
    transform: translateX(42%);
    opacity: 0.5;
  }
}

@keyframes coreBreath {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.045);
  }
}

@keyframes cometPass {
  0% {
    transform: translate(-40%, 36px) rotate(-18deg);
    opacity: 0;
  }
  20%,
  68% {
    opacity: 1;
  }
  100% {
    transform: translate(180%, -72px) rotate(-18deg);
    opacity: 0;
  }
}

@keyframes starFloat {
  to {
    transform: rotate(360deg);
  }
}

@keyframes scan {
  to {
    transform: translateY(80%);
  }
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
    opacity: 0.7;
  }
  50% {
    transform: scale(1.7);
    opacity: 1;
  }
}

@keyframes stepIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes visualSheen {
  0%,
  55% {
    transform: translateX(-110%);
  }
  75%,
  100% {
    transform: translateX(110%);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation: none !important;
    transition: none !important;
  }
}

@media (max-width: 1120px) {
  .site-header {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 12px 18px;
  }

  .top-nav {
    justify-content: flex-start;
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 2px;
    scrollbar-width: none;
  }

  .top-nav::-webkit-scrollbar {
    display: none;
  }

  .home-hero {
    min-height: auto;
    display: grid;
    grid-template-columns: 1fr;
    width: min(100% - 28px, 1200px);
    padding: 38px;
  }

  .hero-copy {
    width: min(100%, 640px);
  }

  .hero-console {
    position: relative;
    min-height: 500px;
    margin-top: 30px;
    border-radius: 16px;
  }

  .console-top {
    width: auto;
    margin-left: 0;
    padding: 18px;
  }

  .galaxy-field {
    inset: 48px 8px 64px;
  }

  .signal-grid {
    right: 18px;
    bottom: 18px;
    left: 18px;
    width: auto;
  }

  .module-banner {
    min-height: auto;
    grid-template-columns: 1fr;
    padding: 30px;
  }

  .module-banner-visual {
    min-height: 300px;
  }

  .part-cards,
  .training-pipeline,
  .roadmap-grid,
  .overview-metrics,
  .module-stats {
    grid-template-columns: 1fr;
  }

  .training-pipeline a::after {
    top: auto;
    right: 50%;
    bottom: -15px;
    width: 1px;
    height: 18px;
  }

  .lesson-shell {
    width: min(100% - 28px, 1200px);
  }

  .lesson-shell {
    padding-top: 18px;
  }

  .training-screen ul {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .top-nav {
    flex-wrap: wrap;
    overflow-x: visible;
  }

  .brand small {
    display: none;
  }

  .brand strong {
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .home-hero h1 {
    font-size: 36px;
    max-width: 100%;
  }

  .home-hero {
    width: min(100% - 20px, 1200px);
    padding: 28px 18px 20px;
    border-radius: 16px;
  }

  .hero-console {
    min-height: 420px;
    border-radius: 15px;
  }

  .galaxy-field {
    inset: 44px -12px 64px;
  }

  .galaxy-core {
    width: 142px;
  }

  .galaxy-core strong {
    font-size: 48px;
  }

  .planet {
    width: 58px;
    height: 58px;
  }

  .planet b {
    font-size: 14px;
  }

  .planet small {
    margin-top: -12px;
    font-size: 8px;
  }

  .comet {
    width: 150px;
  }

  .module-banner {
    padding: 26px 18px;
  }

  .module-banner h1 {
    font-size: 34px;
  }

  .module-title-en {
    font-size: 13px;
  }

  .module-summary {
    font-size: 15px;
  }

  .module-banner-visual {
    min-height: 240px;
  }

  .banner-ring {
    width: 58%;
  }

  .ring-two {
    --sx: 1.48;
  }

  .banner-core {
    width: 104px;
    font-size: 34px;
  }

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

  .part-card {
    min-height: 270px;
  }

  .training-screen,
  .module-banner,
  .overview-panel,
  .home-roadmap {
    border-radius: 14px;
  }

  .training-screen {
    padding: 22px 18px;
  }

  .training-screen h2 {
    font-size: 26px;
  }

  .title-en {
    font-size: 12px;
  }

  .screen-visual {
    border-radius: 12px;
  }

  .training-screen table {
    min-width: 0;
    font-size: 13px;
  }

  .training-screen th,
  .training-screen td {
    padding: 10px 9px;
    overflow-wrap: anywhere;
    word-break: break-word;
  }

  .training-screen ul {
    gap: 7px;
  }

  .training-screen li {
    min-height: 0;
    padding: 11px 12px 11px 32px;
  }

  .training-screen li::before {
    left: 14px;
  }

  .flow-line {
    padding: 11px;
  }

  .enhanced-flow {
    gap: 8px;
  }

  .flow-step {
    width: 100%;
    border-radius: 8px;
  }

  .flow-step:not(:last-child)::after {
    right: 50%;
    top: calc(100% - 2px);
    transform: translateX(50%) rotate(90deg);
  }

  .flow-step:not(:last-child) {
    padding-right: 10px;
  }

  .screen-controls {
    max-width: calc(100vw - 24px);
  }

  .nav-btn {
    padding-inline: 10px;
  }
}