:root {
  --bg: #0a1022;
  --bg-soft: #111936;
  --card: rgba(255, 255, 255, 0.76);
  --card-strong: #ffffff;
  --text: #0f172a;
  --muted: #5b6477;
  --line: rgba(255, 255, 255, 0.2);
  --primary: #635bff;
  --primary-2: #7c4dff;
  --accent: #14d7c8;
  --warm: #ff9f67;
  --shadow: 0 20px 60px rgba(27, 39, 94, 0.18);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(99, 91, 255, 0.16), transparent 32%),
    radial-gradient(circle at top right, rgba(20, 215, 200, 0.16), transparent 28%),
    linear-gradient(180deg, #f7f9ff 0%, #eef3ff 100%);
}

a { text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.center { text-align: center; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: rgba(248, 250, 255, 0.72);
  border-bottom: 1px solid rgba(99, 91, 255, 0.08);
}

.saas-nav {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 800;
  color: #101828;
}

.brand-badge {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 10px 25px rgba(99, 91, 255, 0.28);
}

.nav-links,
.nav-actions {
  display: flex;
  align-items: center;
  gap: 22px;
}

.nav-links a,
.nav-link-simple {
  color: #4f5870;
  font-weight: 600;
}

.nav-links a:hover,
.nav-link-simple:hover { color: var(--primary); }

.nav-cta {
  padding: 12px 22px;
  border-radius: 14px;
}

.hero-saas {
  position: relative;
  overflow: hidden;
  padding: 72px 0 42px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.06fr 0.94fr;
  align-items: center;
  gap: 44px;
}

.hero-copy h1 {
  margin: 0 0 18px;
  font-size: clamp(2.4rem, 5vw, 4.5rem);
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: #0d1326;
}

.hero-desc {
  max-width: 640px;
  margin: 0;
  font-size: 1.08rem;
  line-height: 1.9;
  color: var(--muted);
}

.hero-tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 22px;
}

.hero-tag,
.eyebrow,
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.hero-tag,
.eyebrow {
  color: var(--primary);
  background: rgba(99, 91, 255, 0.1);
  border: 1px solid rgba(99, 91, 255, 0.12);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  border: none;
  font-weight: 800;
  transition: transform .18s ease, box-shadow .18s ease, opacity .18s ease;
}
.button:hover { transform: translateY(-2px); }
.button-large { min-height: 54px; padding: 0 24px; }
.button-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  box-shadow: 0 18px 35px rgba(99, 91, 255, 0.28);
}
.button-secondary,
.ghost-btn {
  color: #26324b;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(31, 41, 55, 0.08);
  box-shadow: 0 10px 24px rgba(18, 26, 54, 0.08);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 34px;
}

.stat-card,
.feature-card,
.step-card,
.price-card,
.cta-box,
.dashboard-panel {
  border: 1px solid rgba(255, 255, 255, 0.6);
  background: var(--card);
  backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
}

.stat-card {
  padding: 18px 18px;
  border-radius: 20px;
}
.stat-card strong {
  display: block;
  font-size: 1.2rem;
  color: #111827;
}
.stat-card span {
  color: var(--muted);
  font-size: .94rem;
}

.hero-visual { position: relative; }
.dashboard-mockup {
  position: relative;
  padding: 18px;
  border-radius: 32px;
  background: linear-gradient(180deg, rgba(255,255,255,.65), rgba(255,255,255,.4));
  border: 1px solid rgba(255,255,255,.7);
  box-shadow: 0 35px 80px rgba(57, 74, 141, 0.22);
}
.dashboard-topbar {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}
.dashboard-topbar span {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: rgba(76, 86, 112, 0.28);
}
.dashboard-content {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 16px;
}
.dashboard-panel {
  border-radius: 24px;
  padding: 22px;
}
.dashboard-main img {
  margin-top: 18px;
  border-radius: 20px;
}
.dashboard-main h3 {
  margin: 10px 0 10px;
  font-size: 1.45rem;
  line-height: 1.3;
}
.dashboard-main p,
.feature-card p,
.step-card p,
.price-card li,
.section-head p,
.cta-box p,
.site-footer p { color: var(--muted); }
.panel-pill {
  display: inline-block;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(20, 215, 200, 0.14);
  color: #0f766e;
  font-size: 12px;
  font-weight: 800;
}
.dashboard-side {
  display: grid;
  gap: 16px;
}
.mini-card span {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 8px;
}
.mini-card strong {
  line-height: 1.5;
  font-size: 1rem;
}
.success-card { background: linear-gradient(180deg, rgba(20,215,200,.18), rgba(255,255,255,.82)); }
.purple-card { background: linear-gradient(180deg, rgba(124,77,255,.12), rgba(255,255,255,.82)); }
.dark-card {
  background: linear-gradient(180deg, #161d37, #111936);
  color: #fff;
}
.dark-card span { color: rgba(255,255,255,.68); }

.hero-orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(16px);
  opacity: .8;
}
.orb-1 {
  width: 210px;
  height: 210px;
  background: rgba(99, 91, 255, 0.22);
  left: -50px;
  top: 30px;
}
.orb-2 {
  width: 280px;
  height: 280px;
  background: rgba(20, 215, 200, 0.16);
  right: -80px;
  top: 20px;
}

.logo-strip { padding: 14px 0 28px; }
.logo-strip-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}
.logo-strip-inner span {
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(255,255,255,.68);
  color: #4d5670;
  font-weight: 700;
  border: 1px solid rgba(17, 24, 39, 0.06);
}

.feature-section,
.steps-section,
.pricing-section,
.cta-section { padding: 78px 0; }
.section-head { max-width: 760px; margin: 0 auto 38px; }
.section-head h2 {
  margin: 14px 0 14px;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.18;
  font-weight: 900;
  letter-spacing: -0.03em;
}
.section-head p { font-size: 1.04rem; }

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}
.feature-card {
  border-radius: 28px;
  padding: 28px;
}
.feature-card h3,
.step-card h3,
.price-card h3,
.cta-box h2 { margin: 14px 0 10px; }
.large-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  align-items: center;
}
.gradient-card {
  background: linear-gradient(135deg, rgba(99,91,255,.12), rgba(20,215,200,.12), rgba(255,255,255,.84));
}
.dark-gradient {
  background: linear-gradient(135deg, #121933, #1a2143);
  color: #fff;
}
.dark-gradient p,
.dark-gradient .chip-dark { color: rgba(255,255,255,.82); }
.chip-soft {
  color: #0f766e;
  background: rgba(20,215,200,.12);
}
.chip-dark {
  background: rgba(255,255,255,.12);
}

.steps-grid,
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}
.step-card,
.price-card {
  border-radius: 28px;
  padding: 28px;
  position: relative;
}
.step-num {
  width: 54px;
  height: 54px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  color: var(--primary);
  background: rgba(99,91,255,.12);
}
.active-step {
  background: linear-gradient(180deg, rgba(20,215,200,.18), rgba(255,255,255,.88));
}

.price-top { margin-bottom: 18px; }
.price-label {
  display: inline-block;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  color: var(--primary);
  background: rgba(99,91,255,.1);
}
.price-value {
  margin-top: 14px;
  font-size: 2rem;
  font-weight: 900;
  color: #111827;
}
.price-value span {
  font-size: 1rem;
  font-weight: 700;
  color: var(--muted);
}
.price-card ul {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
}
.price-card li {
  position: relative;
  padding-left: 22px;
  margin: 12px 0;
}
.price-card li::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--accent);
  position: absolute;
  left: 0;
  top: 9px;
}
.price-btn {
  width: 100%;
  min-height: 50px;
}
.featured-price {
  transform: translateY(-8px);
  background: linear-gradient(180deg, rgba(99,91,255,.14), rgba(255,255,255,.92));
}
.popular-badge {
  position: absolute;
  top: -12px;
  right: 22px;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 900;
  color: #fff;
  background: linear-gradient(135deg, var(--warm), #ff6b6b);
  box-shadow: 0 12px 24px rgba(255, 107, 107, 0.22);
}

.cta-box {
  border-radius: 32px;
  padding: 36px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  background: linear-gradient(135deg, rgba(99,91,255,.16), rgba(20,215,200,.14), rgba(255,255,255,.84));
}

.site-footer {
  padding: 34px 0 20px;
  background: #f7f9ff;
  border-top: 1px solid rgba(17, 24, 39, 0.06);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-start;
}
.footer-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}
.footer-links a { color: #4f5870; font-weight: 700; }
.footer-links a:hover { color: var(--primary); }
.copyright {
  text-align: center;
  color: #6b7280;
  margin: 18px 0 0;
  font-size: 14px;
}

@media (max-width: 1024px) {
  .hero-grid,
  .dashboard-content,
  .feature-grid,
  .steps-grid,
  .pricing-grid,
  .large-card,
  .cta-box,
  .footer-inner {
    grid-template-columns: 1fr;
    display: grid;
  }
  .footer-inner { gap: 12px; }
  .cta-box { align-items: start; }
}

@media (max-width: 820px) {
  .nav-links { display: none; }
  .hero-stats { grid-template-columns: 1fr; }
  .saas-nav { min-height: 72px; }
  .hero-saas { padding-top: 48px; }
  .hero-copy h1 { font-size: 2.5rem; }
  .section-head h2 { font-size: 2rem; }
}

@media (max-width: 640px) {
  .nav-actions .nav-link-simple { display: none; }
  .container { width: min(100% - 24px, 1180px); }
  .hero-actions { flex-direction: column; }
  .button-large,
  .price-btn,
  .nav-cta { width: 100%; }
  .feature-card,
  .step-card,
  .price-card,
  .cta-box,
  .dashboard-panel,
  .stat-card { border-radius: 22px; }
  .dashboard-mockup { border-radius: 24px; padding: 14px; }
}