:root {
  --bg: #070713;
  --bg-soft: #111228;
  --panel: rgba(18, 20, 44, 0.72);
  --text: #f8f6ff;
  --muted: #bcb7d9;
  --primary: #8f7cff;
  --secondary: #58d6ff;
  --pink: #ff74c8;
  --border: rgba(172, 162, 255, 0.3);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(circle at 10% 10%, rgba(118, 96, 255, 0.18), transparent 36%),
    radial-gradient(circle at 85% 5%, rgba(255, 116, 200, 0.14), transparent 28%),
    linear-gradient(180deg, #090a1a 0%, #070713 100%);
  color: var(--text);
  font-family: "Trebuchet MS", "Segoe UI", "Microsoft YaHei", sans-serif;
  letter-spacing: 0.2px;
}

a {
  color: var(--secondary);
  text-decoration: none;
}

.bg-glow {
  position: fixed;
  pointer-events: none;
  z-index: -1;
  filter: blur(46px);
  opacity: 0.4;
}

.bg-glow-a {
  width: 300px;
  height: 300px;
  top: 100px;
  left: -120px;
  background: #8f7cff;
}

.bg-glow-b {
  width: 340px;
  height: 340px;
  top: 230px;
  right: -120px;
  background: #ff74c8;
}

.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(10px);
  background: rgba(7, 7, 19, 0.72);
  border-bottom: 1px solid var(--border);
}

.nav {
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.logo {
  font-weight: 800;
  letter-spacing: 1px;
  color: #fff;
}

nav {
  display: flex;
  gap: 20px;
}

nav a {
  color: var(--muted);
  font-size: 14px;
}

nav a:hover {
  color: var(--text);
}

.theme-toggle {
  border: 1px solid var(--border);
  border-radius: 999px;
  width: 38px;
  height: 38px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  cursor: pointer;
}

main.container {
  padding: 26px 0 40px;
}

.panel {
  margin-top: 18px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--panel);
  backdrop-filter: blur(8px);
  padding: 22px;
  box-shadow: 0 14px 40px rgba(6, 7, 20, 0.36);
}

.hero {
  display: grid;
  grid-template-columns: 1.7fr 1fr;
  gap: 16px;
  align-items: center;
}

.kicker {
  margin: 0;
  color: var(--secondary);
  font-size: 12px;
  letter-spacing: 1.4px;
}

h1 {
  margin: 8px 0 0;
  font-size: clamp(30px, 5.4vw, 54px);
}

h1 span {
  display: block;
  margin-top: 10px;
  font-size: clamp(14px, 2vw, 19px);
  font-weight: 500;
  color: var(--muted);
}

h2 {
  margin: 0;
  font-size: 24px;
}

.intro {
  margin: 16px 0 22px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 62ch;
}

.hero-actions {
  display: flex;
  gap: 12px;
}

.btn {
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 10px 15px;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
}

.btn.primary {
  background: linear-gradient(120deg, var(--primary), var(--pink));
  color: #0f0f22;
}

.btn.ghost {
  border-color: var(--border);
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
}

.btn.wide {
  width: 100%;
}

.avatar-frame {
  border: 1px dashed var(--border);
  border-radius: 14px;
  padding: 18px;
  text-align: center;
}

.avatar {
  width: 108px;
  height: 108px;
  margin: 0 auto 10px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 34px;
  color: #090a1a;
  background: linear-gradient(145deg, #58d6ff 0%, #8f7cff 45%, #ff74c8 100%);
  box-shadow: 0 0 26px rgba(143, 124, 255, 0.42);
}

.avatar-img {
  width: 126px;
  height: 126px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(143, 124, 255, 0.6);
  box-shadow: 0 0 26px rgba(255, 116, 200, 0.42);
}

.avatar-frame p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.panel-head p {
  margin: 8px 0 0;
  color: var(--muted);
}

.engine-layout {
  margin-top: 14px;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 14px;
}

.canvas-wrap {
  border: 1px solid var(--border);
  border-radius: 12px;
  background:
    linear-gradient(rgba(143, 124, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(143, 124, 255, 0.08) 1px, transparent 1px),
    #0d1028;
  background-size: 20px 20px, 20px 20px, auto;
  padding: 10px;
}

canvas {
  width: 100%;
  border-radius: 10px;
  display: block;
  background: linear-gradient(180deg, #111431, #0c0f22);
}

.hint {
  margin-top: 8px;
  color: var(--muted);
  font-size: 12px;
}

.control-panel {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  padding: 12px;
  display: grid;
  gap: 11px;
  align-content: start;
}

label {
  display: grid;
  gap: 6px;
  font-size: 13px;
}

input[type="range"] {
  accent-color: #8f7cff;
}

.stats {
  margin: 0;
  background: rgba(0, 0, 0, 0.26);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px;
  font-size: 12px;
  white-space: pre-wrap;
  color: #d7d2ff;
}

.split {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 16px;
  align-items: center;
}

.split p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.8;
}

.chips {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.chips li {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 13px;
}

.cards {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.03);
}

.card h3 {
  margin: 0;
}

.card p {
  margin: 9px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.contact-list {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 22px;
  color: var(--muted);
  font-size: 13px;
  padding: 18px 0 26px;
}

[data-theme="light"] {
  --bg: #f9f7ff;
  --bg-soft: #f0effc;
  --panel: rgba(255, 255, 255, 0.8);
  --text: #28234a;
  --muted: #645f88;
  --primary: #7251ff;
  --secondary: #2f7aff;
  --pink: #ff5cb4;
  --border: rgba(125, 109, 255, 0.32);
}

[data-theme="light"] body {
  background:
    radial-gradient(circle at 10% 10%, rgba(114, 81, 255, 0.13), transparent 38%),
    radial-gradient(circle at 86% 6%, rgba(255, 92, 180, 0.1), transparent 30%),
    linear-gradient(180deg, #f7f8ff 0%, #eceeff 100%);
}

@media (max-width: 920px) {
  .hero,
  .engine-layout,
  .split,
  .cards {
    grid-template-columns: 1fr;
  }

  nav {
    display: none;
  }
}