/* ===== 名爵 mjbotapp.com — 全新 Cyber App 主题 ===== */

/* --- 字体 --- */
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;500;700;800&family=Source+Sans+3:wght@300;400;600;700;900&display=swap');

:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #0f1729;
  --bg-card: #141e33;
  --bg-card-hover: #1a2744;
  --accent: #00e5ff;
  --accent2: #ff2d78;
  --accent3: #7c3aed;
  --accent-glow: rgba(0,229,255,0.2);
  --accent2-glow: rgba(255,45,120,0.2);
  --text: #e2e8f0;
  --text-muted: #8892b0;
  --text-dim: #4a5568;
  --border: rgba(0,229,255,0.12);
  --radius: 12px;
  --radius-lg: 20px;
  --font-heading: 'JetBrains Mono', monospace;
  --font-body: 'Source Sans 3', sans-serif;
  --container: 1200px;
  --nav-height: 72px;
}

*, *::before, *::after { box-sizing: border-box; margin:0; padding:0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: var(--accent); text-decoration: none; transition: all .3s; }
a:hover { color: #80f0ff; }
img { max-width:100%; height:auto; display:block; }
ul { list-style: none; }
.container { max-width:var(--container); margin:0 auto; padding:0 24px; }

/* — Multi-layer cyber background — */
body::before {
  content:'';
  position:fixed; inset:0;
  pointer-events:none; z-index:-1;
  background:
    radial-gradient(ellipse at 10% 30%, rgba(0,229,255,0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 90% 70%, rgba(255,45,120,0.05) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(124,58,237,0.04) 0%, transparent 50%),
    linear-gradient(180deg, var(--bg-primary), var(--bg-secondary));
}

/* ===== Navbar ===== */
.navbar {
  position:fixed; top:0; left:0; right:0;
  height:var(--nav-height); z-index:1000;
  background: rgba(10,14,26,0.88);
  backdrop-filter: blur(20px) saturate(1.5);
  border-bottom: 1px solid var(--border);
}
.navbar .container {
  display:flex; align-items:center; justify-content:space-between;
  height:100%;
}
.nav-logo {
  font-family:var(--font-heading); font-weight:800;
  font-size:1.5rem;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
  letter-spacing:1px;
}
.nav-links { display:flex; gap:8px; align-items:center; flex-wrap:wrap; justify-content:flex-end; max-width:70%; }
.nav-links a {
  font-family:var(--font-heading); font-weight:500;
  font-size:0.75rem; color:var(--text-muted);
  padding:6px 12px; border-radius:8px;
  transition:all .3s; white-space:nowrap; text-transform:uppercase;
  letter-spacing:.5px;
}
.nav-links a:hover, .nav-links a.active {
  color:var(--accent);
  background: rgba(0,229,255,0.1);
  box-shadow: 0 0 20px rgba(0,229,255,0.08);
}
.nav-toggle { display:none; background:none; border:2px solid var(--border); color:var(--accent); font-size:1.4rem; width:44px; height:44px; border-radius:10px; cursor:pointer; align-items:center; justify-content:center; }

/* ===== Hero ===== */
.hero {
  padding:140px 0 80px;
  position:relative; overflow:hidden;
}
.hero::after {
  content:''; position:absolute; bottom:0; left:0; right:0;
  height:120px;
  background: linear-gradient(transparent, var(--bg-primary));
  pointer-events:none;
}
.hero .container {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:60px; align-items:center;
}
.hero-content { animation:fadeSlideUp .8s ease forwards; }
.hero-badge {
  display:inline-flex; align-items:center; gap:6px;
  font-family:var(--font-heading); font-weight:700;
  font-size:.7rem; text-transform:uppercase; letter-spacing:2px;
  padding:6px 16px;
  background: rgba(255,45,120,0.15);
  border:1px solid rgba(255,45,120,0.3);
  border-radius:100px;
  color:var(--accent2);
  margin-bottom:20px;
}
.hero h1 {
  font-family:var(--font-heading); font-weight:800;
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  line-height:1.15; margin-bottom:18px;
}
.hero h1 .highlight {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
}
.hero p {
  font-size:1rem; color:var(--text-muted);
  max-width:500px; margin-bottom:30px; line-height:1.8;
}
.hero-buttons { display:flex; gap:14px; flex-wrap:wrap; }
.btn {
  display:inline-flex; align-items:center; gap:8px;
  font-family:var(--font-heading); font-weight:700;
  font-size:.88rem; padding:14px 30px;
  border-radius:12px; border:none;
  cursor:pointer; transition:all .35s;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent2), #ff6b9d);
  color:#fff;
  box-shadow: 0 4px 24px var(--accent2-glow);
}
.btn-primary:hover {
  transform:translateY(-2px);
  box-shadow:0 8px 40px var(--accent2-glow);
  color:#fff;
}
.btn-secondary {
  background:transparent;
  color:var(--accent);
  border:2px solid var(--accent);
}
.btn-secondary:hover {
  background:var(--accent-glow);
  transform:translateY(-2px);
}
.hero-image {
  position:relative;
  animation:fadeSlideUp .8s ease .2s forwards; opacity:0;
}
.hero-image img {
  width:100%; border-radius:var(--radius-lg);
  box-shadow:0 20px 60px rgba(0,229,255,0.12);
}
.hero-image::before {
  content:''; position:absolute; inset:-8px;
  border-radius:calc(var(--radius-lg)+8px);
  border:1px solid var(--border); z-index:-1;
}

/* ===== Section Common ===== */
.section { padding:80px 0; }
.section-header {
  text-align:center; max-width:700px;
  margin:0 auto 50px;
}
.section-header h2 {
  font-family:var(--font-heading); font-weight:700;
  font-size:clamp(1.4rem, 3vw, 2.2rem);
  margin-bottom:12px;
}
.section-header p { color:var(--text-muted); font-size:.95rem; }
.section-tag {
  display:inline-block;
  font-family:var(--font-heading); font-weight:700;
  font-size:.65rem; text-transform:uppercase; letter-spacing:2px;
  padding:4px 14px;
  background: rgba(0,229,255,0.1);
  border-radius:100px;
  color:var(--accent);
  margin-bottom:10px;
}

/* ===== Feature Grid ===== */
.feature-grid { display:grid; gap:24px; }
.feature-grid-3 { grid-template-columns:repeat(3,1fr); }
.feature-grid-4 { grid-template-columns:repeat(4,1fr); }
.feature-grid-2 { grid-template-columns:repeat(2,1fr); }
.feature-card {
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:30px 26px;
  transition:all .35s;
}
.feature-card:hover {
  background:var(--bg-card-hover);
  transform:translateY(-4px);
  border-color:var(--accent);
  box-shadow:0 8px 32px rgba(0,229,255,0.08);
}
.feature-card .icon { font-size:2rem; margin-bottom:14px; display:block; }
.feature-card h3 {
  font-family:var(--font-heading); font-weight:700;
  font-size:1rem; margin-bottom:8px;
}
.feature-card p { font-size:.85rem; color:var(--text-muted); line-height:1.7; }

/* ===== Bento Grid ===== */
.bento-grid {
  display:grid; gap:18px;
  grid-template-columns:repeat(4,1fr);
  grid-auto-rows:220px;
}
.bento-item {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius); padding:24px;
  transition:all .35s;
  display:flex; flex-direction:column; justify-content:center;
}
.bento-item:hover {
  border-color:var(--accent2);
  background:var(--bg-card-hover);
  transform:translateY(-3px);
  box-shadow:0 0 30px rgba(255,45,120,0.06);
}
.bento-item.tall { grid-row:span 2; }
.bento-item.wide { grid-column:span 2; }
.bento-item.full { grid-column:1/-1; }
.bento-item h3 {
  font-family:var(--font-heading); font-weight:700;
  font-size:1rem; margin-bottom:6px;
}
.bento-item p, .bento-item li { font-size:.84rem; color:var(--text-muted); line-height:1.7; }
.bento-item ul { margin-top:8px; }
.bento-item ul li { padding-left:16px; position:relative; margin-bottom:4px; }
.bento-item ul li::before { content:'▸'; position:absolute; left:0; color:var(--accent2); }
.bento-number {
  font-family:var(--font-heading); font-weight:800;
  font-size:2.4rem;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
  margin-bottom:6px;
}
.bento-icon { font-size:1.7rem; margin-bottom:10px; }

/* ===== Stats ===== */
.stats-grid {
  display:grid; grid-template-columns:repeat(4,1fr); gap:18px;
}
.stat-card {
  text-align:center; background:var(--bg-card);
  border:1px solid var(--border); border-radius:var(--radius);
  padding:28px 16px;
}
.stat-number {
  font-family:var(--font-heading); font-weight:800;
  font-size:2.4rem;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
}
.stat-label { color:var(--text-muted); font-size:.82rem; margin-top:4px; }

/* ===== Timeline ===== */
.timeline { position:relative; padding-left:36px; }
.timeline::before {
  content:''; position:absolute; left:12px;
  top:0; bottom:0; width:2px;
  background: linear-gradient(var(--accent2), transparent);
}
.timeline-item {
  position:relative; padding:18px 22px; margin-bottom:18px;
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius);
}
.timeline-item::before {
  content:''; position:absolute; left:-28px; top:26px;
  width:10px; height:10px;
  background:var(--accent2); border-radius:50%;
  box-shadow:0 0 14px rgba(255,45,120,0.3);
}
.timeline-item h4 { font-family:var(--font-heading); font-weight:700; margin-bottom:4px; }
.timeline-item p { color:var(--text-muted); font-size:.84rem; }

/* ===== Accordion/FAQ ===== */
.faq-item {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius); margin-bottom:10px; overflow:hidden;
}
.faq-question {
  padding:18px 22px;
  font-family:var(--font-heading); font-weight:600;
  cursor:pointer; display:flex; justify-content:space-between; align-items:center;
  user-select:none; font-size:.92rem;
}
.faq-question .arrow { transition:transform .3s; font-size:1.1rem; }
.faq-item.open .faq-question .arrow { transform:rotate(180deg); }
.faq-answer {
  padding:0 22px; max-height:0; overflow:hidden;
  transition:all .4s; color:var(--text-muted); font-size:.86rem; line-height:1.8;
}
.faq-item.open .faq-answer { padding:0 22px 18px; max-height:400px; }

/* ===== Table ===== */
.app-table {
  width:100%; border-collapse:collapse;
  background:var(--bg-card);
  border-radius:var(--radius); overflow:hidden;
}
.app-table th {
  background: linear-gradient(135deg, rgba(0,229,255,0.2), rgba(124,58,237,0.2));
  color:var(--accent);
  font-family:var(--font-heading); font-weight:700;
  padding:12px 18px; text-align:left; font-size:.8rem;
}
.app-table td {
  padding:12px 18px; border-bottom:1px solid var(--border);
  font-size:.84rem; color:var(--text-muted);
}
.app-table tr:hover td { background:var(--bg-card-hover); }

/* ===== Testimonials ===== */
.testimonial-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:18px; }
.testimonial-card {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius); padding:26px;
}
.testimonial-card .stars { color:var(--accent2); font-size:1rem; margin-bottom:10px; }
.testimonial-card blockquote {
  font-size:.86rem; font-style:italic;
  color:var(--text-muted); margin-bottom:14px; line-height:1.8;
}
.testimonial-card .author {
  font-family:var(--font-heading); font-weight:600; font-size:.82rem;
  color:var(--accent);
}
.testimonial-card .role { font-size:.75rem; color:var(--text-dim); }

/* ===== Steps ===== */
.steps-grid {
  display:grid; grid-template-columns:repeat(4,1fr); gap:18px;
  counter-reset:step;
}
.step-card {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius); padding:26px; text-align:center;
}
.step-card::before {
  counter-increment:step; content:counter(step);
  font-family:var(--font-heading); font-weight:800;
  font-size:2.2rem;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
  display:block; margin-bottom:6px;
}
.step-card h4 { font-family:var(--font-heading); font-weight:700; margin-bottom:4px; }
.step-card p { font-size:.82rem; color:var(--text-muted); }

/* ===== Logo Cloud ===== */
.logo-cloud {
  display:flex; flex-wrap:wrap; justify-content:center;
  gap:32px; padding:16px 0;
}
.logo-cloud-item {
  font-family:var(--font-heading); font-weight:700;
  font-size:.85rem; color:var(--text-dim);
  padding:10px 24px; background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius); transition:all .3s;
}
.logo-cloud-item:hover {
  color:var(--accent2); border-color:var(--accent2);
  background:var(--bg-card-hover);
}

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, rgba(0,229,255,0.06), rgba(255,45,120,0.04));
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:56px; text-align:center;
}
.cta-section h2 {
  font-family:var(--font-heading); font-weight:700;
  font-size:clamp(1.3rem, 2.8vw, 1.8rem);
  margin-bottom:10px;
}
.cta-section p {
  color:var(--text-muted); max-width:480px;
  margin:0 auto 24px; font-size:.9rem;
}
.cta-section .btn { margin:0 auto; }

/* ===== Two Column ===== */
.two-col {
  display:grid; grid-template-columns:1fr 1fr;
  gap:44px; align-items:center;
}
.two-col.reverse { direction:rtl; }
.two-col.reverse > * { direction:ltr; }
.two-col-text h3 {
  font-family:var(--font-heading); font-weight:700;
  font-size:1.4rem; margin-bottom:14px;
}
.two-col-text p { color:var(--text-muted); line-height:1.8; margin-bottom:10px; }
.two-col-text ul li {
  padding-left:18px; position:relative; margin-bottom:6px;
  color:var(--text-muted);
}
.two-col-text ul li::before { content:'✦'; position:absolute; left:0; color:var(--accent2); }
.two-col-image img {
  width:100%; border-radius:var(--radius);
  box-shadow:0 8px 32px rgba(0,0,0,.3);
}

/* ===== Icon List ===== */
.icon-list { display:grid; gap:14px; }
.icon-list-item {
  display:flex; gap:14px; align-items:flex-start;
  padding:16px 18px; background:var(--bg-card);
  border:1px solid var(--border); border-radius:var(--radius);
  transition:all .3s;
}
.icon-list-item:hover { border-color:var(--accent2); background:var(--bg-card-hover); }
.icon-list-item .il-icon {
  font-size:1.3rem; flex-shrink:0;
  width:44px; height:44px;
  display:flex; align-items:center; justify-content:center;
  background: rgba(255,45,120,0.1);
  border-radius:10px;
}
.icon-list-item .il-text h4 {
  font-family:var(--font-heading); font-weight:600;
  font-size:.9rem; margin-bottom:3px;
}
.icon-list-item .il-text p { font-size:.82rem; color:var(--text-muted); }

/* ===== Gallery ===== */
.gallery-grid {
  display:grid; grid-template-columns:repeat(3,1fr); gap:14px;
}
.gallery-item {
  border-radius:var(--radius); overflow:hidden;
  aspect-ratio:4/3; background:var(--bg-card);
  border:1px solid var(--border);
}
.gallery-item img {
  width:100%; height:100%; object-fit:cover;
  transition:transform .4s;
}
.gallery-item:hover img { transform:scale(1.05); }

/* ===== Pricing ===== */
.pricing-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.pricing-card {
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius); padding:32px 26px;
  text-align:center; transition:all .35s; position:relative;
}
.pricing-card.featured {
  border-color:var(--accent2);
  box-shadow:0 0 32px rgba(255,45,120,0.12);
  transform:scale(1.03);
}
.pricing-card .price {
  font-family:var(--font-heading); font-weight:800;
  font-size:2.6rem;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
  margin:10px 0;
}
.pricing-card ul { margin:14px 0; }
.pricing-card ul li {
  padding:6px 0; color:var(--text-muted);
  font-size:.84rem; border-bottom:1px solid var(--border);
}
.pricing-card ul li:last-child { border:none; }
.pricing-card h4 { font-family:var(--font-heading); font-weight:700; font-size:1rem; }
.pricing-badge {
  position:absolute; top:-12px; left:50%; transform:translateX(-50%);
  background: linear-gradient(135deg, var(--accent2), #ff6b9d);
  color:#fff;
  font-family:var(--font-heading); font-weight:700; font-size:.68rem;
  padding:4px 16px; border-radius:100px; text-transform:uppercase;
}

/* ===== Process Flow ===== */
.process-flow { display:grid; grid-template-columns:repeat(4,1fr); gap:14px; }
.process-step {
  text-align:center; padding:22px 14px;
  background:var(--bg-card); border:1px solid var(--border);
  border-radius:var(--radius); position:relative;
}
.process-step::after {
  content:'→'; position:absolute; right:-12px; top:50%;
  transform:translateY(-50%); font-size:1.3rem; color:var(--accent2);
}
.process-step:last-child::after { display:none; }
.process-step .ps-number {
  font-family:var(--font-heading); font-weight:800;
  font-size:1.6rem; color:var(--accent2); opacity:.5;
  margin-bottom:4px;
}
.process-step h4 { font-family:var(--font-heading); font-weight:700; font-size:.9rem; margin-bottom:3px; }
.process-step p { font-size:.78rem; color:var(--text-muted); }

/* ===== Footer ===== */
.footer {
  background:var(--bg-secondary);
  border-top:1px solid var(--border);
  padding:56px 0 28px; margin-top:40px;
}
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:36px; margin-bottom:36px; }
.footer-brand .nav-logo { margin-bottom:10px; display:inline-block; }
.footer-brand p { color:var(--text-muted); font-size:.84rem; max-width:300px; line-height:1.7; }
.footer h4 { font-family:var(--font-heading); font-weight:700; font-size:.85rem; margin-bottom:14px; color:var(--text); }
.footer-links a { display:block; color:var(--text-muted); font-size:.82rem; padding:3px 0; transition:all .3s; }
.footer-links a:hover { color:var(--accent2); padding-left:4px; }
.footer-contact p { color:var(--text-muted); font-size:.82rem; margin-bottom:3px; }
.footer-contact strong { color:var(--accent2); }
.footer-bottom { border-top:1px solid var(--border); padding-top:20px; text-align:center; color:var(--text-dim); font-size:.78rem; }

/* ===== Animations ===== */
@keyframes fadeSlideUp {
  from { opacity:0; transform:translateY(30px); }
  to { opacity:1; transform:translateY(0); }
}

.feature-card:nth-child(1) { animation:fadeSlideUp .5s ease 0.05s both; }
.feature-card:nth-child(2) { animation:fadeSlideUp .5s ease 0.10s both; }
.feature-card:nth-child(3) { animation:fadeSlideUp .5s ease 0.15s both; }
.feature-card:nth-child(4) { animation:fadeSlideUp .5s ease 0.20s both; }
.feature-card:nth-child(5) { animation:fadeSlideUp .5s ease 0.25s both; }
.feature-card:nth-child(6) { animation:fadeSlideUp .5s ease 0.30s both; }

.bento-item:nth-child(1) { animation:fadeSlideUp .5s ease 0.05s both; }
.bento-item:nth-child(2) { animation:fadeSlideUp .5s ease 0.10s both; }
.bento-item:nth-child(3) { animation:fadeSlideUp .5s ease 0.15s both; }
.bento-item:nth-child(4) { animation:fadeSlideUp .5s ease 0.20s both; }
.bento-item:nth-child(5) { animation:fadeSlideUp .5s ease 0.25s both; }
.bento-item:nth-child(6) { animation:fadeSlideUp .5s ease 0.30s both; }

/* ===== Responsive ===== */
@media (max-width:1024px) {
  .feature-grid-4 { grid-template-columns:repeat(2,1fr); }
  .bento-grid { grid-template-columns:repeat(2,1fr); }
  .bento-item.wide { grid-column:span 2; }
  .bento-item.tall { grid-row:span 1; }
  .stats-grid { grid-template-columns:repeat(2,1fr); }
  .testimonial-grid { grid-template-columns:1fr; }
  .steps-grid { grid-template-columns:repeat(2,1fr); }
  .pricing-grid { grid-template-columns:1fr; }
  .process-flow { grid-template-columns:repeat(2,1fr); }
  .process-step::after { display:none; }
  .footer-grid { grid-template-columns:1fr 1fr; }
  .pricing-card.featured { transform:none; }
  .gallery-grid { grid-template-columns:repeat(2,1fr); }
}
@media (max-width:768px) {
  .nav-links {
    display:none; position:absolute; top:var(--nav-height);
    left:0; right:0; background:rgba(10,14,26,0.98);
    flex-direction:column; padding:20px; gap:4px;
    border-bottom:1px solid var(--border);
  }
  .nav-links.active { display:flex; }
  .nav-toggle { display:flex; }
  .hero .container { grid-template-columns:1fr; gap:28px; }
  .hero { padding:110px 0 40px; }
  .hero-image { order:-1; }
  .feature-grid-3, .feature-grid-4 { grid-template-columns:1fr; }
  .bento-grid { grid-template-columns:1fr; }
  .bento-item.wide, .bento-item.tall { grid-column:span 1; grid-row:span 1; }
  .stats-grid { grid-template-columns:1fr 1fr; }
  .two-col { grid-template-columns:1fr; }
  .two-col.reverse { direction:ltr; }
  .steps-grid { grid-template-columns:1fr; }
  .process-flow { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; }
  .gallery-grid { grid-template-columns:1fr; }
  .cta-section { padding:36px 20px; }
  .hero-buttons { flex-direction:column; }
  .hero-buttons .btn { width:100%; justify-content:center; }
}