/* ===== Voxeldojo · 深色科技未来风 ===== */
:root {
  --bg: #060912;
  --bg-2: #0a0e1a;
  --bg-3: #111726;
  --panel: rgba(20, 28, 48, 0.55);
  --panel-border: rgba(120, 160, 255, 0.12);
  --text: #e6edf7;
  --text-dim: #8a97b3;
  --text-faint: #5a6580;
  --accent: #00d4ff;
  --accent-2: #0ea5e9;
  --accent-3: #8b5cf6;
  --grad: linear-gradient(135deg, #00d4ff 0%, #0ea5e9 45%, #8b5cf6 100%);
  --grad-soft: linear-gradient(135deg, rgba(0,212,255,0.15), rgba(139,92,246,0.15));
  --glow: 0 0 40px rgba(0, 212, 255, 0.25);
  --radius: 14px;
  --maxw: 1180px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Hiragino Sans GB", "Microsoft YaHei", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* 背景网格 + 光晕装饰 */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(120,160,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,160,255,0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 0%, #000 30%, transparent 80%);
}
body::after {
  content: '';
  position: fixed;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(0,212,255,0.12), transparent 70%);
  z-index: 0;
  pointer-events: none;
  filter: blur(40px);
}

/* ===== 导航 ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 6vw;
  transition: all 0.3s ease;
  backdrop-filter: blur(0);
}
.nav.scrolled {
  background: rgba(6, 9, 18, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--panel-border);
  padding: 12px 6vw;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.5px;
}
.logo-mark {
  color: var(--accent);
  font-size: 1.5rem;
  text-shadow: 0 0 12px var(--accent);
}
.nav-logo-img {
  width: 30px;
  height: 30px;
  filter: drop-shadow(0 0 8px rgba(0,212,255,0.4));
  transition: transform 0.3s;
}
.nav-logo:hover .nav-logo-img { transform: rotate(-6deg) scale(1.08); }
.footer-logo-img {
  width: 26px;
  height: 26px;
  vertical-align: middle;
  margin-right: 4px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}
.nav-links a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.92rem;
  transition: color 0.2s;
  position: relative;
}
.nav-links a:hover { color: var(--text); }
.nav-links a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  bottom: -6px; left: 0;
  width: 0; height: 2px;
  background: var(--grad);
  transition: width 0.25s;
}
.nav-links a:not(.nav-cta):hover::after { width: 100%; }
.nav-cta {
  padding: 8px 18px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  color: var(--accent) !important;
}
.nav-cta:hover {
  background: var(--accent);
  color: var(--bg) !important;
  box-shadow: var(--glow);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
}
.nav-toggle span {
  width: 24px; height: 2px;
  background: var(--text);
  transition: 0.3s;
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== 通用 section ===== */
.section {
  position: relative;
  z-index: 1;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 110px 6vw;
}
.section-head {
  text-align: center;
  margin-bottom: 64px;
}
.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 3px;
  color: var(--accent);
  font-weight: 600;
  padding: 4px 14px;
  border: 1px solid rgba(0,212,255,0.3);
  border-radius: 999px;
  background: rgba(0,212,255,0.06);
  margin-bottom: 20px;
}
.section-head h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: -0.5px;
}
.section-lead {
  color: var(--text-dim);
  max-width: 720px;
  margin: 0 auto;
  font-size: 1.02rem;
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 100px;
}
.hero-inner { max-width: 880px; }
.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  border: 1px solid var(--panel-border);
  border-radius: 999px;
  font-size: 0.82rem;
  color: var(--text-dim);
  background: var(--panel);
  backdrop-filter: blur(10px);
  margin-bottom: 28px;
}
.hero-title {
  font-weight: 800;
  line-height: 1;
  letter-spacing: -2px;
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}
.hero-title .gradient-text {
  font-size: clamp(3.5rem, 13vw, 7rem);
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 40px rgba(0,212,255,0.45));
  line-height: 0.95;
}
.hero-subtitle-line {
  display: block;
  font-size: clamp(1rem, 3vw, 1.7rem);
  font-weight: 500;
  color: var(--text);
  letter-spacing: 6px;
  padding: 8px 24px;
  border-top: 1px solid var(--panel-border);
  border-bottom: 1px solid var(--panel-border);
}
.hero-tagline {
  font-size: clamp(1.3rem, 4vw, 2rem);
  font-weight: 600;
  margin-bottom: 22px;
  color: var(--text);
}
.hero-desc {
  color: var(--text-dim);
  font-size: 1.05rem;
  max-width: 640px;
  margin: 0 auto 40px;
}
.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 70px;
}
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s;
  letter-spacing: 0.5px;
}
.btn-primary {
  background: var(--grad);
  color: var(--bg);
  box-shadow: var(--glow);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 50px rgba(0,212,255,0.45);
}
.btn-ghost {
  border: 1px solid var(--panel-border);
  color: var(--text);
  background: var(--panel);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.hero-creed {
  border-top: 1px solid var(--panel-border);
  padding-top: 32px;
  max-width: 720px;
  margin: 0 auto;
}
.creed-en {
  display: block;
  font-size: 0.88rem;
  color: var(--text-faint);
  font-style: italic;
  margin-bottom: 10px;
  line-height: 1.6;
}
.creed-cn {
  display: block;
  font-size: 1rem;
  color: var(--text-dim);
  letter-spacing: 1px;
}
.scroll-hint {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 42px;
  border: 2px solid var(--text-faint);
  border-radius: 14px;
  display: flex;
  justify-content: center;
  padding-top: 8px;
}
.scroll-hint span {
  width: 3px;
  height: 8px;
  background: var(--accent);
  border-radius: 2px;
  animation: scrollDot 1.8s infinite;
}
@keyframes scrollDot {
  0% { opacity: 0; transform: translateY(-4px); }
  50% { opacity: 1; }
  100% { opacity: 0; transform: translateY(10px); }
}

/* ===== 九层架构 ===== */
.arch-stack {
  max-width: 880px;
  margin: 0 auto 64px;
  position: relative;
}
.arch-stack::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), var(--accent-3), transparent);
  opacity: 0.4;
}
.arch-layer {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 18px 24px;
  margin-bottom: 10px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  backdrop-filter: blur(8px);
  cursor: pointer;
  transition: all 0.3s;
  position: relative;
}
.arch-layer:hover {
  border-color: var(--accent);
  transform: translateX(8px);
  box-shadow: -8px 0 30px rgba(0,212,255,0.15);
}
.layer-num {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent);
  font-family: 'SF Mono', Menlo, Consolas, monospace;
  min-width: 40px;
  text-align: center;
  background: rgba(0,212,255,0.08);
  border: 1px solid rgba(0,212,255,0.25);
  border-radius: 8px;
  padding: 6px 0;
}
.layer-body h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 4px;
}
.layer-body p {
  color: var(--text-dim);
  font-size: 0.92rem;
}
.highlight-layer {
  background: linear-gradient(135deg, rgba(0,212,255,0.08), rgba(139,92,246,0.08));
  border-color: rgba(0,212,255,0.3);
}
.feedback-layer {
  border-style: dashed;
  border-color: var(--accent-3);
}
.feedback-layer .layer-num {
  color: var(--accent-3);
  background: rgba(139,92,246,0.08);
  border-color: rgba(139,92,246,0.3);
}

.arch-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.pillar {
  padding: 28px 24px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  text-align: center;
}
.pillar h4 {
  color: var(--accent);
  font-size: 1rem;
  margin-bottom: 10px;
}
.pillar p {
  color: var(--text-dim);
  font-size: 0.9rem;
}

/* ===== 三条硬承诺 ===== */
.section-promise { background: linear-gradient(180deg, transparent, rgba(139,92,246,0.04), transparent); }
.promise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.promise-card {
  padding: 40px 28px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  text-align: center;
  transition: all 0.3s;
  backdrop-filter: blur(8px);
}
.promise-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
  box-shadow: var(--glow);
}
.promise-icon {
  font-size: 2.4rem;
  margin-bottom: 18px;
  display: block;
  filter: drop-shadow(0 0 12px var(--accent));
}
.promise-card h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
}
.promise-card p {
  color: var(--text-dim);
  font-size: 0.92rem;
}

/* ===== 市场 ===== */
.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}
.stat {
  text-align: center;
  padding: 36px 20px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
}
.stat-num {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
  margin-bottom: 12px;
}
.stat-num span { font-size: 0.5em; -webkit-text-fill-color: var(--text-dim); }
.stat-label {
  color: var(--text-dim);
  font-size: 0.88rem;
}
.market-insight {
  max-width: 880px;
  margin: 0 auto 56px;
}
.market-insight h3 {
  font-size: 1.3rem;
  margin-bottom: 24px;
  text-align: center;
}
.route-compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.route {
  padding: 32px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--panel-border);
  background: var(--panel);
}
.route-tag {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 2px;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid var(--panel-border);
  color: var(--text-dim);
  margin-bottom: 16px;
}
.highlight-tag {
  background: var(--grad);
  color: var(--bg) !important;
  border: none;
  font-weight: 600;
}
.route h4 { font-size: 1.2rem; margin-bottom: 12px; }
.route p { color: var(--text-dim); font-size: 0.92rem; margin-bottom: 14px; }
.route-examples {
  color: var(--text-faint) !important;
  font-size: 0.85rem !important;
  font-style: italic;
}
.route-open {
  border-color: rgba(0,212,255,0.35);
  background: linear-gradient(135deg, rgba(0,212,255,0.06), rgba(139,92,246,0.06));
}
.pain-list {
  list-style: none;
  max-width: 760px;
  margin: 0 auto;
}
.pain-list li {
  padding: 14px 0 14px 32px;
  position: relative;
  color: var(--text-dim);
  border-bottom: 1px solid var(--panel-border);
}
.pain-list li::before {
  content: '▸';
  position: absolute;
  left: 8px;
  color: var(--accent);
}

/* ===== 竞品对比 ===== */
.quad-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 56px;
}
.quad-card {
  padding: 30px 28px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  transition: all 0.3s;
}
.quad-card:hover { border-color: rgba(120,160,255,0.3); }
.quad-card-highlight {
  border-color: var(--accent);
  background: linear-gradient(135deg, rgba(0,212,255,0.08), rgba(139,92,246,0.08));
  box-shadow: var(--glow);
}
.quad-tag {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 1.5px;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--panel-border);
  color: var(--text-dim);
  margin-bottom: 14px;
}
.quad-card h4 { font-size: 1.2rem; margin-bottom: 16px; }
.quad-pro, .quad-con {
  font-size: 0.9rem;
  margin-bottom: 8px;
}
.quad-pro { color: #6ee7b7; }
.quad-con { color: #fca5a5; }
.traction {
  max-width: 820px;
  margin: 0 auto;
  padding: 36px 32px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
}
.traction h3 { font-size: 1.25rem; margin-bottom: 14px; }
.traction p { color: var(--text-dim); margin-bottom: 12px; }
.traction-path strong { color: var(--accent); }

/* ===== 团队 ===== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.team-card {
  padding: 36px 28px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  transition: all 0.3s;
}
.team-card:hover { transform: translateY(-4px); border-color: rgba(0,212,255,0.3); }
.team-card h3 {
  font-size: 1.3rem;
  margin-bottom: 4px;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}
.team-en {
  color: var(--text-faint);
  font-size: 0.82rem;
  margin-bottom: 16px;
  font-family: 'SF Mono', Menlo, monospace;
}
.team-card p { color: var(--text-dim); font-size: 0.92rem; }

/* ===== 联系 ===== */
.section-contact {
  text-align: center;
  max-width: 100%;
  background: radial-gradient(ellipse at center, rgba(0,212,255,0.08), transparent 60%);
}
.contact-inner h2 {
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 800;
  margin-bottom: 24px;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.contact-inner > p {
  color: var(--text-dim);
  font-size: 1.05rem;
  margin-bottom: 36px;
}
.contact-cta { display: flex; justify-content: center; }

/* ===== Footer ===== */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--panel-border);
  background: rgba(6,9,18,0.6);
  padding: 40px 6vw;
  backdrop-filter: blur(10px);
}
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
}
.footer-meta { text-align: right; }
.footer-meta p { color: var(--text-faint); font-size: 0.82rem; margin-bottom: 4px; }
.footer-icp { min-height: 1em; }

/* ===== 滚动渐入动画 ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 响应式 ===== */
@media (max-width: 880px) {
  .nav-links {
    position: fixed;
    top: 0; right: -100%;
    width: 70%;
    max-width: 320px;
    height: 100vh;
    flex-direction: column;
    justify-content: center;
    background: rgba(6,9,18,0.97);
    backdrop-filter: blur(20px);
    border-left: 1px solid var(--panel-border);
    transition: right 0.35s ease;
    gap: 28px;
  }
  .nav-links.open { right: 0; }
  .nav-toggle { display: flex; z-index: 101; }

  .arch-pillars, .promise-grid, .stat-row, .team-grid {
    grid-template-columns: 1fr;
  }
  .route-compare, .quad-grid {
    grid-template-columns: 1fr;
  }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-meta { text-align: center; }
  .section { padding: 80px 5vw; }
  .arch-stack::before { left: 20px; }
}
@media (max-width: 520px) {
  .hero-cta { flex-direction: column; align-items: center; }
  .btn { width: 80%; text-align: center; }
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}