/* ============ Reset & Base ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, 'PingFang SC', 'Helvetica Neue', 'Microsoft YaHei', Arial, sans-serif;
  color: #1a1a2e;
  background: #fff;
  font-size: 14px;
  line-height: 1.6;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; outline: none; font-family: inherit; }

/* ============ Variables ============ */
:root {
  --blue:       #006eff;
  --blue-dark:  #0052cc;
  --blue-light: #e8f0ff;
  --navy:       #0a1628;
  --text:       #1a1a2e;
  --text-sub:   #4a5568;
  --text-light: #8a9ab5;
  --border:     #e5eaf3;
  --bg-grey:    #f7f9fc;
  --shadow:     0 4px 24px rgba(0,110,255,.10);
  --shadow-md:  0 8px 40px rgba(0,0,0,.12);
  --radius:     12px;
}

/* ============ Layout ============ */
.container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.bg-grey { background: var(--bg-grey); }

/* ============ ANNOUNCE BAR ============ */
.announce-bar {
  background: linear-gradient(90deg, #0a1628, #0d2f6e);
  color: rgba(255,255,255,.82);
  font-size: 13px;
  text-align: center;
  padding: 9px 60px;
  position: relative;
}
.announce-bar a { color: #7eb8ff; margin-left: 8px; }
.announce-bar a:hover { text-decoration: underline; }
.announce-close {
  position: absolute; right: 20px; top: 50%; transform: translateY(-50%);
  cursor: pointer; font-size: 20px; opacity: .5; line-height: 1;
}
.announce-close:hover { opacity: 1; }

/* ============ NAVBAR ============ */
.navbar {
  position: sticky; top: 0; z-index: 999;
  background: rgba(10,22,40,.97);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.navbar-inner {
  height: 60px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.nav-logo-icon { font-size: 24px; }
.nav-logo-img {
  width: 32px; height: 32px;
  border-radius: 8px;
  object-fit: cover;
  flex-shrink: 0;
}
.nav-logo-text { font-size: 18px; font-weight: 700; color: #fff; letter-spacing: .5px; }
.nav-logo-text span { color: #4da6ff; }
.nav-menu { display: flex; align-items: center; gap: 2px; flex: 1; }
.nav-item {
  position: relative;
  padding: 7px 13px; font-size: 14px;
  color: rgba(255,255,255,.72); border-radius: 6px;
  cursor: pointer; transition: all .18s; white-space: nowrap;
}
.nav-item:hover { color: #fff; background: rgba(255,255,255,.09); }
.nav-hot::after {
  content: 'AI';
  position: absolute; top: 0; right: 0;
  font-size: 9px; font-weight: 700;
  background: #ff4d4f; color: #fff;
  padding: 1px 5px; border-radius: 4px; line-height: 16px;
}
.nav-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.nav-link { font-size: 13px; color: rgba(255,255,255,.58); transition: color .18s; }
.nav-link:hover { color: #fff; }
.btn-login {
  padding: 6px 16px; border-radius: 6px; font-size: 13px;
  color: rgba(255,255,255,.8); border: 1px solid rgba(255,255,255,.22);
  background: transparent; transition: all .18s;
}
.btn-login:hover { background: rgba(255,255,255,.09); color: #fff; }
.btn-register {
  padding: 7px 18px; border-radius: 6px; font-size: 13px; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, #006eff, #0052cc);
  box-shadow: 0 2px 12px rgba(0,110,255,.4); transition: all .2s;
}
.btn-register:hover { transform: translateY(-1px); box-shadow: 0 4px 18px rgba(0,110,255,.55); }

/* ============ HERO ============ */
.hero {
  background: linear-gradient(135deg, #040d1f 0%, #0a1d3e 45%, #0d2f70 100%);
  overflow: hidden; position: relative; padding-top: 80px;
}
.hero-glow-1 {
  position: absolute; top: -120px; left: -120px;
  width: 550px; height: 550px; border-radius: 50%;
  background: radial-gradient(circle, rgba(0,110,255,.22) 0%, transparent 70%);
  pointer-events: none;
}
.hero-glow-2 {
  position: absolute; bottom: 0; right: 8%;
  width: 420px; height: 420px; border-radius: 50%;
  background: radial-gradient(circle, rgba(0,198,255,.14) 0%, transparent 70%);
  pointer-events: none;
}
.hero-content {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 60px; align-items: center; padding-bottom: 60px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 10px;
  background: rgba(0,110,255,.18); border: 1px solid rgba(0,110,255,.35);
  border-radius: 24px; padding: 6px 16px; margin-bottom: 24px;
  font-size: 13px; color: #7eb8ff;
}
.badge-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #00e676; box-shadow: 0 0 8px #00e676;
  flex-shrink: 0;
  animation: blink 1.6s ease-in-out infinite;
}
@keyframes blink { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.4;transform:scale(1.5)} }
.hero-title {
  font-size: 54px; font-weight: 900; color: #fff; line-height: 1.12; margin-bottom: 20px;
}
.hero-gradient {
  background: linear-gradient(90deg, #4da6ff 0%, #00c6ff 50%, #7b61ff 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-desc { font-size: 16px; color: rgba(255,255,255,.62); line-height: 1.8; margin-bottom: 36px; max-width: 490px; }
.hero-btns { display: flex; gap: 16px; align-items: center; }
.btn-primary-lg {
  padding: 14px 32px; border-radius: 8px; font-size: 15px; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, #006eff, #0052cc);
  box-shadow: 0 4px 20px rgba(0,110,255,.5); transition: all .22s;
}
.btn-primary-lg:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(0,110,255,.6); }
.btn-ghost-lg {
  padding: 13px 26px; border-radius: 8px; font-size: 15px; font-weight: 600;
  color: rgba(255,255,255,.82); border: 1px solid rgba(255,255,255,.28);
  background: rgba(255,255,255,.06); transition: all .22s;
}
.btn-ghost-lg:hover { background: rgba(255,255,255,.13); color: #fff; }
.hero-checks { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 28px; }
.hero-check { font-size: 13px; color: rgba(255,255,255,.52); }
/* Hero right */
.hero-right { position: relative; }
.hero-card-main {
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.11);
  border-radius: 20px; padding: 30px; backdrop-filter: blur(20px);
}
.hero-card-title { color: rgba(255,255,255,.88); font-size: 15px; font-weight: 600; margin-bottom: 22px; }
.metrics-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.metric-item {
  background: rgba(0,110,255,.13); border: 1px solid rgba(0,110,255,.22);
  border-radius: 14px; padding: 18px;
}
.metric-val { font-size: 32px; font-weight: 900; color: #fff; line-height: 1; }
.metric-val sup { font-size: 16px; color: #4da6ff; }
.metric-lbl { font-size: 12px; color: rgba(255,255,255,.48); margin-top: 6px; }
.hero-float {
  position: absolute; z-index: 3;
  background: rgba(13,33,68,.92); border: 1px solid rgba(0,110,255,.28);
  border-radius: 14px; padding: 14px 20px; backdrop-filter: blur(12px);
  box-shadow: 0 8px 32px rgba(0,0,0,.25);
}
.hero-float-1 { top: -22px; right: -18px; }
.hero-float-2 { bottom: 16px; left: -22px; }
.float-label { font-size: 11px; color: rgba(255,255,255,.48); margin-bottom: 5px; }
.float-val { font-size: 20px; font-weight: 800; }
.float-green { color: #00e676; }
.float-blue  { color: #4da6ff; }
/* Promo strip */
.promo-strip {
  background: rgba(0,0,0,.32); border-top: 1px solid rgba(255,255,255,.07);
  backdrop-filter: blur(10px); position: relative; z-index: 2;
}
.promo-tabs { display: flex; }
.promo-tab {
  flex: 1; padding: 18px 22px; cursor: pointer;
  border-right: 1px solid rgba(255,255,255,.06); transition: background .18s;
}
.promo-tab:last-child { border-right: none; }
.promo-tab:hover { background: rgba(255,255,255,.04); }
.ptag {
  display: inline-block; font-size: 10px; font-weight: 800;
  padding: 2px 8px; border-radius: 4px; margin-bottom: 6px;
  letter-spacing: .5px;
}
.ptag-red    { background: rgba(255,77,79,.2);  color: #ff7875; border: 1px solid rgba(255,77,79,.3); }
.ptag-blue   { background: rgba(0,110,255,.2);  color: #69b4ff; border: 1px solid rgba(0,110,255,.3); }
.ptag-green  { background: rgba(0,230,118,.15); color: #5af0a0; border: 1px solid rgba(0,230,118,.25); }
.ptag-purple { background: rgba(123,97,255,.2); color: #b39dff; border: 1px solid rgba(123,97,255,.3); }
.ptitle { font-size: 14px; font-weight: 700; color: rgba(255,255,255,.82); margin-bottom: 4px; }
.pprice { font-size: 20px; font-weight: 900; color: #ff7875; line-height: 1.2; }
.pprice small { font-size: 12px; font-weight: 400; color: rgba(255,255,255,.38); margin-left: 2px; }
.pdesc { font-size: 12px; color: rgba(255,255,255,.4); margin-top: 4px; }

/* ============ SECTION COMMON ============ */
.section { padding: 80px 0; }
.section-dark {
  background: linear-gradient(135deg, #040d1f 0%, #0a1d3e 100%);
}
.sec-header { text-align: center; margin-bottom: 56px; }
.sec-eyebrow {
  display: inline-block; font-size: 13px; font-weight: 700;
  color: var(--blue); letter-spacing: 1px; margin-bottom: 12px;
}
.sec-title { font-size: 36px; font-weight: 800; color: var(--text); margin-bottom: 12px; line-height: 1.22; }
.sec-desc { font-size: 15px; color: var(--text-sub); max-width: 560px; margin: 0 auto; }

/* ============ AI GRID ============ */
.ai-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.ai-card {
  background: #fff; border: 1px solid var(--border);
  border-radius: 16px; padding: 32px; cursor: pointer;
  transition: all .24s; position: relative; overflow: hidden;
}
.ai-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--c1), var(--c2)); opacity: 0; transition: opacity .24s;
}
.ai-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: transparent; }
.ai-card:hover::before { opacity: 1; }
.ai-icon {
  width: 52px; height: 52px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 26px; margin-bottom: 20px;
}
.ai-name { font-size: 17px; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.ai-desc { font-size: 14px; color: var(--text-sub); line-height: 1.72; margin-bottom: 18px; }
.ai-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font-size: 12px; padding: 4px 11px; border-radius: 6px;
  background: var(--blue-light); color: var(--blue); font-weight: 500;
}
.ai-link {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 13px; color: var(--blue); font-weight: 700; margin-top: 18px; transition: gap .2s;
}
.ai-card:hover .ai-link { gap: 10px; }

/* ============ PRODUCTS TABS ============ */
.prod-tabs {
  display: flex; gap: 4px; margin-bottom: 0;
  border-bottom: 2px solid var(--border); padding-bottom: 0;
}
.ptab {
  padding: 10px 22px; border-radius: 8px 8px 0 0; margin-bottom: -2px;
  font-size: 14px; font-weight: 600; color: var(--text-sub);
  background: transparent; border: 2px solid transparent; border-bottom: 2px solid transparent;
  transition: all .18s; cursor: pointer;
}
.ptab:hover { color: var(--blue); }
.ptab.active { color: var(--blue); background: #fff; border-color: var(--border); border-bottom-color: #fff; }
.prod-panels { margin-top: 32px; }
.prod-panel { display: none; }
.prod-panel.active { display: block; }
.prod-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.prod-card {
  background: #fff; border: 1px solid var(--border);
  border-radius: 12px; padding: 24px; transition: all .2s; cursor: pointer;
}
.prod-card:hover { border-color: var(--blue); box-shadow: 0 4px 20px rgba(0,110,255,.1); transform: translateY(-2px); }
.prod-icon { font-size: 30px; margin-bottom: 12px; }
.prod-name { font-size: 15px; font-weight: 700; color: var(--text); margin-bottom: 6px; }
.prod-desc { font-size: 13px; color: var(--text-sub); line-height: 1.65; }
.prod-price { margin-top: 12px; font-size: 13px; color: #ff4d4f; font-weight: 700; }

/* ============ PRICING ============ */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.pricing-card {
  border-radius: 20px; padding: 36px; position: relative;
  overflow: hidden; transition: transform .24s;
}
.pricing-card:hover { transform: translateY(-5px); }
.pricing-light {
  background: #fff; border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.pricing-blue { background: linear-gradient(135deg, #006eff, #0044cc); color: #fff; }
.pricing-dark {
  background: linear-gradient(135deg, #0a1628, #0d2f6e); color: #fff;
  border: 1px solid rgba(0,110,255,.22);
}
.pricing-badge-hot {
  position: absolute; top: 20px; right: 20px;
  background: #ff4d4f; color: #fff;
  font-size: 11px; font-weight: 800; padding: 4px 12px; border-radius: 20px;
}
.pricing-label { font-size: 13px; opacity: .65; margin-bottom: 6px; }
.pricing-name { font-size: 22px; font-weight: 800; margin-bottom: 8px; }
.pricing-price { font-size: 46px; font-weight: 900; line-height: 1; margin: 10px 0; }
.pricing-price sup { font-size: 20px; font-weight: 700; vertical-align: super; }
.pricing-price sub { font-size: 15px; font-weight: 400; opacity: .65; }
.pricing-origin { font-size: 13px; opacity: .48; text-decoration: line-through; margin-bottom: 8px; }
.pricing-features { margin: 22px 0; }
.pricing-features li {
  font-size: 13px; padding: 8px 0;
  border-bottom: 1px solid rgba(0,0,0,.06); display: flex; align-items: center; gap: 10px;
}
.pricing-blue .pricing-features li,
.pricing-dark .pricing-features li { border-bottom-color: rgba(255,255,255,.1); }
.pricing-features li::before { content: '✓'; font-weight: 900; color: #00d084; font-size: 14px; }
.btn-price {
  display: block; width: 100%; padding: 13px;
  border-radius: 10px; font-size: 15px; font-weight: 700;
  text-align: center; transition: all .2s;
}
.btn-price-outline { border: 2px solid var(--blue); color: var(--blue); background: transparent; }
.btn-price-outline:hover { background: var(--blue-light); }
.btn-price-white { background: #fff; color: var(--blue); box-shadow: 0 2px 12px rgba(0,0,0,.15); }
.btn-price-white:hover { background: #f0f7ff; }
.btn-price-blue {
  background: var(--blue); color: #fff;
  box-shadow: 0 3px 14px rgba(0,110,255,.5);
}
.btn-price-blue:hover { background: var(--blue-dark); }

/* ============ SOLUTIONS ============ */
.solutions-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.sol-card {
  border-radius: 20px; padding: 36px; cursor: pointer;
  transition: all .24s; position: relative; overflow: hidden;
}
.sol-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.sol-blue   { background: linear-gradient(135deg, #eef2ff, #e0e8ff); }
.sol-green  { background: linear-gradient(135deg, #f0fff6, #e0fff0); }
.sol-orange { background: linear-gradient(135deg, #fff7f0, #fff0e0); }
.sol-purple { background: linear-gradient(135deg, #fdf0ff, #f5e0ff); }
.sol-icon { font-size: 42px; margin-bottom: 16px; }
.sol-name { font-size: 22px; font-weight: 800; color: var(--text); margin-bottom: 10px; }
.sol-desc { font-size: 14px; color: var(--text-sub); line-height: 1.72; margin-bottom: 22px; }
.sol-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.sol-tags span {
  font-size: 12px; padding: 4px 14px; border-radius: 20px;
  background: rgba(0,110,255,.09); color: var(--blue); font-weight: 600;
}

/* ============ STATS ============ */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat-item {
  padding: 40px 28px; text-align: center;
  border-right: 1px solid rgba(255,255,255,.08);
}
.stat-item:last-child { border-right: none; }
.stat-num {
  font-size: 54px; font-weight: 900; line-height: 1; margin-bottom: 10px;
  background: linear-gradient(90deg, #4da6ff, #00c6ff);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.stat-num span { font-size: 22px; }
.stat-lbl { font-size: 14px; color: rgba(255,255,255,.5); }

/* ============ TRUST BAR ============ */
.trust-bar { background: var(--bg-grey); padding: 52px 0; }
.trust-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.trust-item { display: flex; align-items: center; gap: 14px; }
.trust-icon {
  width: 50px; height: 50px; border-radius: 12px; background: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 24px;
  box-shadow: 0 2px 14px rgba(0,0,0,.07); flex-shrink: 0;
}
.trust-name { font-size: 14px; font-weight: 700; color: var(--text); }
.trust-desc { font-size: 12px; color: var(--text-light); margin-top: 3px; }
.trust-divider { width: 1px; height: 44px; background: var(--border); flex-shrink: 0; }

/* ============ MARQUEE ============ */
.marquee-wrap { overflow: hidden; position: relative; }
.marquee-wrap::before,
.marquee-wrap::after {
  content: ''; position: absolute; top: 0; bottom: 0; width: 100px; z-index: 2;
}
.marquee-wrap::before { left: 0; background: linear-gradient(to right, var(--bg-grey), transparent); }
.marquee-wrap::after  { right: 0; background: linear-gradient(to left, var(--bg-grey), transparent); }
.marquee-track {
  display: flex;
  animation: marquee 28s linear infinite;
  width: max-content;
}
.marquee-track:hover { animation-play-state: paused; }
@keyframes marquee { 0%{transform:translateX(0)} 100%{transform:translateX(-50%)} }
.logo-item {
  flex-shrink: 0; width: 148px; height: 64px;
  display: flex; align-items: center; justify-content: center;
  border-right: 1px solid var(--border);
  font-size: 14px; font-weight: 700; color: var(--text-light);
  letter-spacing: .5px;
}

/* ============ CTA BAND ============ */
.cta-band { background: linear-gradient(135deg, #006eff, #0044cc); padding: 64px 0; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.cta-title { font-size: 34px; font-weight: 900; color: #fff; margin-bottom: 8px; }
.cta-desc { font-size: 15px; color: rgba(255,255,255,.68); }
.cta-btns { display: flex; gap: 16px; flex-shrink: 0; }
.btn-cta-white {
  padding: 14px 34px; border-radius: 8px; font-size: 15px; font-weight: 800;
  color: var(--blue); background: #fff; box-shadow: 0 4px 20px rgba(0,0,0,.16); transition: all .2s;
}
.btn-cta-white:hover { transform: translateY(-2px); }
.btn-cta-outline {
  padding: 13px 28px; border-radius: 8px; font-size: 15px; font-weight: 700;
  color: rgba(255,255,255,.88); border: 1px solid rgba(255,255,255,.38);
  background: rgba(255,255,255,.1); transition: all .2s;
}
.btn-cta-outline:hover { background: rgba(255,255,255,.18); color: #fff; }

/* ============ FOOTER ============ */
.footer-top { background: #0a1628; padding: 64px 0 44px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 40px; }
.footer-logo { font-size: 20px; font-weight: 800; color: #fff; margin-bottom: 14px; display: flex; align-items: center; gap: 10px; }
.footer-logo-img { width: 28px; height: 28px; border-radius: 6px; object-fit: cover; }
.footer-brand-desc { font-size: 14px; color: rgba(255,255,255,.42); line-height: 1.8; margin-bottom: 22px; }
.footer-social { display: flex; gap: 10px; }
.social-btn {
  width: 38px; height: 38px; border-radius: 8px;
  background: rgba(255,255,255,.08); display: flex; align-items: center;
  justify-content: center; font-size: 17px; cursor: pointer; transition: background .18s;
}
.social-btn:hover { background: rgba(255,255,255,.16); }
.footer-col-title {
  font-size: 12px; font-weight: 800; color: rgba(255,255,255,.7);
  text-transform: uppercase; letter-spacing: .8px; margin-bottom: 18px;
}
.footer-links { display: flex; flex-direction: column; gap: 11px; }
.footer-link { font-size: 13px; color: rgba(255,255,255,.42); transition: color .18s; }
.footer-link:hover { color: rgba(255,255,255,.82); }
.footer-bottom { background: #06101f; padding: 20px 0; border-top: 1px solid rgba(255,255,255,.05); }
.footer-bottom-inner { display: flex; align-items: center; justify-content: space-between; }
.footer-copyright { font-size: 13px; color: rgba(255,255,255,.28); }
.footer-bottom-links { display: flex; gap: 24px; }
.footer-bottom-link { font-size: 13px; color: rgba(255,255,255,.28); transition: color .18s; }
.footer-bottom-link:hover { color: rgba(255,255,255,.58); }

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  .hero-content { grid-template-columns: 1fr; }
  .hero-right { display: none; }
  .hero-title { font-size: 40px; }
  .ai-grid { grid-template-columns: repeat(2, 1fr); }
  .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .solutions-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .trust-inner { flex-wrap: wrap; gap: 24px; }
  .trust-divider { display: none; }
  .cta-inner { flex-direction: column; text-align: center; }
  .cta-btns { justify-content: center; }
}
@media (max-width: 640px) {
  .hero-title { font-size: 32px; }
  .sec-title { font-size: 26px; }
  .ai-grid, .prod-grid { grid-template-columns: 1fr; }
  .promo-tabs { flex-wrap: wrap; }
  .promo-tab { width: 50%; }
  .nav-menu { display: none; }
}