/* Deconstructivism Layer (解构主义错位排版) Theme - High Performance Optimized */
:root {
  --dec-bg: #0d1117;
  --dec-surface: #161b22;
  --dec-card: #21262d;
  --dec-cyan: #00f0ff;
  --dec-magenta: #ff0055;
  --dec-yellow: #ffcc00;
  --dec-text: #e6edf3;
  --dec-heading: #ffffff;
  --dec-muted: #8b949e;
  --dec-border: #30363d;
  --dec-shadow: -8px 8px 0px rgba(0, 240, 255, 0.3);
  --dec-shadow-mag: 8px -8px 0px rgba(255, 0, 85, 0.3);
}

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

html {
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--dec-bg);
  color: var(--dec-text);
  line-height: 1.6;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(0, 240, 255, 0.04) 0%, transparent 20%),
    radial-gradient(circle at 90% 80%, rgba(255, 0, 85, 0.04) 0%, transparent 20%);
}

a {
  color: inherit;
  text-decoration: none;
  transition: transform 0.2s ease, color 0.2s ease;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(13, 17, 23, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 2px solid var(--dec-cyan);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
  will-change: transform;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 22px;
  font-weight: 900;
  color: var(--dec-heading);
  letter-spacing: 1px;
}

.logo-icon {
  width: 42px;
  height: 42px;
  background: var(--dec-cyan);
  color: #000000;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 900;
  clip-path: polygon(15% 0%, 100% 0%, 85% 100%, 0% 100%);
  transform: rotate(-4deg);
}

.nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-link {
  font-size: 14px;
  font-weight: 800;
  color: #c9d1d9;
  letter-spacing: 1px;
  padding: 6px 12px;
  text-transform: uppercase;
  transition: all 0.2s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--dec-cyan);
  background: rgba(0, 240, 255, 0.1);
  transform: skewX(-12deg);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.2s ease;
  clip-path: polygon(8% 0%, 100% 0%, 92% 100%, 0% 100%);
  will-change: transform;
  text-transform: uppercase;
}

.btn-primary {
  background: var(--dec-cyan);
  color: #000000;
  box-shadow: -4px 4px 0px var(--dec-magenta);
}

.btn-primary:hover {
  background: var(--dec-magenta);
  color: #ffffff;
  transform: translate3d(-3px, -3px, 0);
  box-shadow: -6px 6px 0px var(--dec-cyan);
}

.btn-outline {
  background: var(--dec-surface);
  color: var(--dec-cyan);
  border: 2px solid var(--dec-cyan);
}

.btn-outline:hover {
  background: var(--dec-cyan);
  color: #000000;
  transform: translate3d(-3px, -3px, 0);
  box-shadow: 4px 4px 0px var(--dec-magenta);
}

/* Hero Section */
.hero {
  padding: 85px 0 65px;
  text-align: center;
  position: relative;
  border-bottom: 2px solid var(--dec-border);
}

.dec-tag {
  display: inline-block;
  padding: 6px 20px;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 3px;
  color: #000000;
  background: var(--dec-yellow);
  transform: rotate(-2deg) skewX(-10deg);
  box-shadow: 4px 4px 0px var(--dec-magenta);
  margin-bottom: 25px;
  text-transform: uppercase;
}

.hero-title {
  font-size: 46px;
  font-weight: 900;
  color: var(--dec-heading);
  line-height: 1.25;
  margin-bottom: 22px;
  letter-spacing: -0.5px;
}

.hero-title span {
  color: var(--dec-cyan);
  background: rgba(0, 240, 255, 0.15);
  padding: 2px 14px;
  display: inline-block;
  transform: rotate(1deg) skewX(-8deg);
  border-left: 4px solid var(--dec-magenta);
}

.hero-subtitle {
  font-size: 18px;
  color: var(--dec-muted);
  max-width: 780px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 50px;
}

/* Deconstructivism Layer Devices Grid */
.dec-showcase {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 40px;
}

.dec-card {
  background: var(--dec-surface);
  border: 2px solid var(--dec-border);
  padding: 12px;
  position: relative;
  transition: transform 0.25s ease, border-color 0.25s ease;
  will-change: transform;
}

.dec-card:nth-child(1) {
  transform: rotate(-2deg) translate3d(0, 0, 0);
  box-shadow: var(--dec-shadow);
}

.dec-card:nth-child(2) {
  transform: rotate(1.5deg) translate3d(0, -10px, 0);
  box-shadow: var(--dec-shadow-mag);
  border-color: var(--dec-magenta);
}

.dec-card:nth-child(3) {
  transform: rotate(-1.5deg) translate3d(0, 0, 0);
  box-shadow: var(--dec-shadow);
}

.dec-card:hover {
  transform: rotate(0deg) translate3d(-5px, -5px, 0) !important;
  border-color: var(--dec-cyan);
  box-shadow: -10px 10px 0px var(--dec-magenta);
}

.dec-card img {
  width: 100%;
  height: 230px;
  object-fit: cover;
  display: block;
  clip-path: polygon(0 0, 100% 2%, 98% 100%, 0 98%);
  content-visibility: auto;
}

.dec-card-label {
  margin-top: 12px;
  font-size: 13px;
  font-weight: 800;
  color: var(--dec-cyan);
  text-align: center;
  letter-spacing: 1px;
}

/* Sections */
.section {
  padding: 80px 0;
  border-bottom: 2px solid var(--dec-border);
  content-visibility: auto;
  contain-intrinsic-size: 1px 600px;
}

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

.section-title {
  text-align: center;
  margin-bottom: 50px;
}

.section-title h2 {
  font-size: 34px;
  font-weight: 900;
  color: var(--dec-heading);
  margin-bottom: 12px;
  display: inline-block;
  position: relative;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 10%;
  width: 80%;
  height: 4px;
  background: var(--dec-magenta);
  transform: skewX(-20deg);
}

.section-title p {
  font-size: 16px;
  color: var(--dec-muted);
  margin-top: 16px;
}

/* 3x3 Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--dec-card);
  border: 1px solid var(--dec-border);
  padding: 30px 24px;
  position: relative;
  transition: transform 0.2s ease, border-color 0.2s ease;
  clip-path: polygon(0 0, 100% 0, 100% 95%, 95% 100%, 0 100%);
}

.feature-card:hover {
  transform: translate3d(-4px, -4px, 0);
  border-color: var(--dec-cyan);
  box-shadow: 6px 6px 0px var(--dec-magenta);
}

.feature-badge {
  width: 38px;
  height: 38px;
  background: var(--dec-cyan);
  color: #000000;
  font-weight: 900;
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  transform: skewX(-12deg);
  box-shadow: -3px 3px 0px var(--dec-magenta);
}

.feature-card h3 {
  font-size: 19px;
  font-weight: 800;
  color: var(--dec-heading);
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 14px;
  color: var(--dec-muted);
  line-height: 1.65;
}

/* Blog Section */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.blog-card {
  background: var(--dec-card);
  border: 1px solid var(--dec-border);
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  transition: transform 0.2s ease;
}

.blog-card:hover {
  transform: translate3d(-4px, -4px, 0);
  border-color: var(--dec-magenta);
  box-shadow: 6px 6px 0px var(--dec-cyan);
}

.blog-date {
  display: inline-block;
  font-size: 12px;
  font-weight: 900;
  color: #000000;
  background: var(--dec-cyan);
  padding: 4px 10px;
  margin-bottom: 14px;
  transform: skewX(-10deg);
  letter-spacing: 1px;
}

.blog-card h3 {
  font-size: 20px;
  font-weight: 800;
  color: var(--dec-heading);
  margin-bottom: 12px;
}

.blog-card p {
  font-size: 14px;
  color: var(--dec-muted);
  line-height: 1.65;
  margin-bottom: 20px;
}

.blog-link {
  font-size: 14px;
  font-weight: 800;
  color: var(--dec-cyan);
  letter-spacing: 0.5px;
}

.blog-link:hover {
  color: var(--dec-magenta);
  text-decoration: underline;
}

.more-wrapper {
  text-align: center;
  margin-top: 40px;
}

/* FAQ Section */
.faq-container {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.faq-item {
  background: var(--dec-card);
  border: 1px solid var(--dec-border);
  border-left: 4px solid var(--dec-cyan);
  padding: 24px 28px;
  transition: transform 0.2s ease;
}

.faq-item:hover {
  transform: translate3d(-3px, 0, 0);
  border-left-color: var(--dec-magenta);
}

.faq-question {
  font-size: 18px;
  font-weight: 800;
  color: var(--dec-heading);
  margin-bottom: 10px;
}

.faq-answer {
  font-size: 14px;
  color: var(--dec-muted);
  line-height: 1.7;
}

/* Download Page Specific */
.download-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.download-card {
  background: var(--dec-card);
  border: 1px solid var(--dec-border);
  padding: 36px 24px;
  text-align: center;
  transition: transform 0.2s ease;
}

.download-card:hover {
  transform: translate3d(-4px, -4px, 0);
  border-color: var(--dec-cyan);
  box-shadow: 6px 6px 0px var(--dec-magenta);
}

.download-card-icon {
  font-size: 40px;
  margin-bottom: 16px;
}

.download-card h3 {
  font-size: 21px;
  font-weight: 800;
  color: var(--dec-heading);
  margin-bottom: 12px;
}

.download-card p {
  font-size: 14px;
  color: var(--dec-muted);
  margin-bottom: 24px;
}

.download-web-banner {
  background: var(--dec-surface);
  border: 2px solid var(--dec-cyan);
  padding: 36px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  box-shadow: -6px 6px 0px var(--dec-magenta);
}

.download-web-banner h3 {
  font-size: 22px;
  color: var(--dec-cyan);
  margin-bottom: 8px;
}

.download-web-banner p {
  color: var(--dec-muted);
  font-size: 14px;
}

/* Footer */
.footer {
  background: #090d13;
  color: #8b949e;
  padding: 70px 0 30px;
  border-top: 3px solid var(--dec-cyan);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 50px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 800;
  margin-bottom: 20px;
  color: var(--dec-cyan);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.footer-col p {
  font-size: 14px;
  color: #8b949e;
  line-height: 1.7;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul li a {
  font-size: 14px;
  color: #8b949e;
}

.footer-col ul li a:hover {
  color: var(--dec-cyan);
  text-decoration: underline;
}

.footer-copyright {
  border-top: 1px solid var(--dec-border);
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
  color: #6e7681;
}

@media (max-width: 992px) {
  .dec-showcase, .features-grid, .download-grid {
    grid-template-columns: 1fr;
  }
  .blog-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .download-web-banner {
    flex-direction: column;
    text-align: center;
  }
}