:root {
  --bz-ink: #0c1222;
  --bz-muted: #5c6578;
  --bz-line: #e6e9f0;
  --bz-soft: #f3f6f8;
  --bz-brand: #0f766e;
  --bz-brand-deep: #0a5c56;
  --bz-accent: #c4a574;
  --bz-white: #ffffff;
}

* { box-sizing: border-box; }

.bilzat-landing {
  margin: 0;
  min-height: 100vh;
  color: var(--bz-ink);
  background: var(--bz-white);
  font-family: "Sora", "Manrope", "PingFang SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

.bilzat-landing a { color: inherit; text-decoration: none; }
.bilzat-landing button { font: inherit; }
.landing-shell { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }

/* —— Nav —— */
.landing-nav {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid rgba(230, 233, 240, 0.9);
  backdrop-filter: blur(14px);
}
.landing-nav-inner {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.landing-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.02em;
}
.brand-crm {
  color: var(--bz-brand);
  font-weight: 800;
}
.landing-mark {
  position: relative;
  width: 32px;
  height: 24px;
  display: inline-block;
}
.landing-mark::before,
.landing-mark::after {
  content: "";
  position: absolute;
  width: 26px;
  height: 8px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--bz-brand-deep), #14b8a6);
  transform: skewX(-20deg);
}
.landing-mark::before { left: 0; top: 2px; }
.landing-mark::after { right: 0; bottom: 2px; }

.landing-links {
  display: flex;
  align-items: center;
  gap: 2px;
}
.landing-links > a {
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 13px;
  color: var(--bz-muted);
}
.landing-links > a:hover,
.landing-links > a.active {
  color: var(--bz-brand);
  background: #f0fdfa;
}

.landing-actions { display: flex; align-items: center; gap: 8px; }
.nav-action {
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--bz-muted);
}
.nav-action.is-user {
  color: var(--bz-brand);
  font-weight: 800;
}
.nav-action.primary {
  background: var(--bz-brand);
  color: #fff;
}
.nav-action.primary:hover { background: var(--bz-brand-deep); }

.landing-menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 0;
  background: transparent;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
}
.landing-menu-toggle span {
  display: block;
  height: 2px;
  width: 18px;
  margin: 0 auto;
  background: var(--bz-ink);
}
.landing-mobile-panel { display: none; }

/* —— Hero —— */
.landing-hero {
  position: relative;
  min-height: min(88vh, 760px);
  display: flex;
  align-items: flex-end;
  padding: 72px 0 88px;
  overflow: hidden;
  background:
    radial-gradient(1200px 520px at 12% -10%, rgba(20, 184, 166, 0.22), transparent 55%),
    radial-gradient(900px 480px at 92% 8%, rgba(196, 165, 116, 0.18), transparent 50%),
    linear-gradient(180deg, #eef6f5 0%, #f7fafb 42%, #ffffff 100%);
}
.hero-atmosphere {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(115deg, transparent 40%, rgba(15, 118, 110, 0.06) 100%),
    repeating-linear-gradient(
      -12deg,
      transparent,
      transparent 28px,
      rgba(15, 118, 110, 0.03) 28px,
      rgba(15, 118, 110, 0.03) 29px
    );
  pointer-events: none;
}
.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
  padding-bottom: 8px;
}
.hero-brand {
  margin: 0 0 18px;
  font-family: "Noto Serif SC", "Sora", serif;
  font-size: clamp(42px, 7vw, 72px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--bz-ink);
}
.landing-hero h1 {
  margin: 0 0 18px;
  font-size: clamp(28px, 4.2vw, 40px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
}
.hero-lead {
  margin: 0 0 28px;
  max-width: 34em;
  font-size: 16px;
  line-height: 1.7;
  color: var(--bz-muted);
}
.hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 700;
  border: 1px solid transparent;
}
.hero-cta.primary {
  background: var(--bz-brand);
  color: #fff;
}
.hero-cta.primary:hover { background: var(--bz-brand-deep); }
.hero-cta.ghost {
  background: rgba(255, 255, 255, 0.7);
  border-color: var(--bz-line);
  color: var(--bz-ink);
}

/* —— Pillars —— */
.pillar-strip {
  border-block: 1px solid var(--bz-line);
  background: var(--bz-soft);
}
.pillar-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
}
.pillar-item {
  padding: 22px 14px;
  border-right: 1px solid var(--bz-line);
  text-align: left;
}
.pillar-item:last-child { border-right: 0; }
.pillar-item strong {
  display: block;
  font-size: 14px;
  margin-bottom: 4px;
}
.pillar-item span {
  font-size: 12px;
  color: var(--bz-muted);
}

/* —— Sections —— */
.landing-section { padding: 88px 0; }
.landing-section.soft { background: var(--bz-soft); }
.section-head { max-width: 640px; margin-bottom: 36px; }
.section-head span {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--bz-brand);
}
.section-head h2 {
  margin: 0 0 12px;
  font-size: clamp(24px, 3vw, 32px);
  letter-spacing: -0.02em;
}
.section-head p {
  margin: 0;
  color: var(--bz-muted);
  line-height: 1.65;
  font-size: 15px;
}

.module-board {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 28px;
  align-items: start;
}
.module-tabs { display: flex; flex-direction: column; gap: 6px; }
.module-tab {
  text-align: left;
  border: 1px solid transparent;
  background: transparent;
  padding: 12px 14px;
  border-radius: 10px;
  color: var(--bz-muted);
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
}
.module-tab.active,
.module-tab:hover {
  background: #fff;
  border-color: var(--bz-line);
  color: var(--bz-brand);
  box-shadow: 0 8px 24px rgba(15, 24, 40, 0.04);
}
.module-panel {
  padding: 28px 32px;
  border: 1px solid var(--bz-line);
  border-radius: 16px;
  background: #fff;
}
.module-panel h3 { margin: 0 0 10px; font-size: 22px; }
.module-panel > p {
  margin: 0 0 16px;
  color: var(--bz-muted);
  line-height: 1.65;
}
.module-panel ul {
  margin: 0 0 18px;
  padding-left: 18px;
  color: var(--bz-ink);
  line-height: 1.8;
}
.text-link {
  font-weight: 700;
  color: var(--bz-brand);
  font-size: 14px;
}

.reason-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}
.reason-block {
  padding: 24px 26px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid var(--bz-line);
}
.reason-block h3 { margin: 0 0 8px; font-size: 17px; }
.reason-block p {
  margin: 0;
  color: var(--bz-muted);
  line-height: 1.65;
  font-size: 14px;
}

.wb-list {
  display: grid;
  gap: 0;
  border: 1px solid var(--bz-line);
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
}
.wb-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 16px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--bz-line);
  font-size: 14px;
}
.wb-row:last-child { border-bottom: 0; }
.wb-row b { color: var(--bz-ink); }
.wb-row span { color: var(--bz-muted); }

/* —— SaaS pricing —— */
.saas-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.saas-plan {
  display: flex;
  flex-direction: column;
  padding: 22px 20px;
  border: 1px solid var(--bz-line);
  border-radius: 14px;
  background: #fff;
  min-height: 100%;
}
.saas-plan.highlight {
  border-color: rgba(15, 118, 110, 0.45);
  box-shadow: 0 12px 32px rgba(15, 118, 110, 0.1);
  position: relative;
}
.saas-plan.highlight::before {
  content: "常用";
  position: absolute;
  top: 12px;
  right: 12px;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  background: var(--bz-brand);
  padding: 3px 8px;
  border-radius: 999px;
}
.saas-plan-head { margin-bottom: 14px; }
.saas-ver {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--bz-brand);
  margin-bottom: 6px;
}
.saas-plan h3 {
  margin: 0;
  font-size: 18px;
}
.saas-price {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px;
  margin-bottom: 8px;
}
.saas-price em {
  font-style: normal;
  font-size: 16px;
  font-weight: 700;
  color: var(--bz-ink);
}
.saas-price strong {
  font-size: 34px;
  letter-spacing: -0.03em;
  line-height: 1;
}
.saas-price span {
  width: 100%;
  font-size: 12px;
  color: var(--bz-muted);
}
.saas-maintain {
  margin-bottom: 16px;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--bz-soft);
  font-size: 13px;
  color: var(--bz-ink);
  line-height: 1.45;
}
.saas-maintain b { color: var(--bz-brand-deep); }
.saas-maintain small {
  display: block;
  margin-top: 2px;
  color: var(--bz-muted);
  font-size: 12px;
}
.saas-plan ul {
  margin: 0 0 18px;
  padding-left: 18px;
  flex: 1;
  font-size: 13px;
  line-height: 1.75;
  color: var(--bz-muted);
}
.saas-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  border-radius: 9px;
  background: var(--bz-brand);
  color: #fff !important;
  font-size: 13px;
  font-weight: 700;
}
.saas-plan:not(.highlight) .saas-cta {
  background: transparent;
  color: var(--bz-brand) !important;
  border: 1px solid rgba(15, 118, 110, 0.35);
}
.saas-note {
  margin: 18px 0 0;
  font-size: 13px;
  color: var(--bz-muted);
  line-height: 1.6;
}

@media (max-width: 960px) {
  .saas-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .saas-grid { grid-template-columns: 1fr; }
}

/* —— CTA —— */
.landing-cta {
  padding: 72px 0;
  background:
    linear-gradient(135deg, #0a5c56 0%, #0f766e 48%, #134e4a 100%);
  color: #fff;
}
.cta-inner {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
}
.cta-brand {
  margin: 0 0 8px;
  font-family: "Noto Serif SC", serif;
  font-size: 28px;
  font-weight: 700;
}
.landing-cta h2 {
  margin: 0 0 10px;
  font-size: clamp(24px, 3vw, 32px);
}
.landing-cta p {
  margin: 0;
  opacity: 0.86;
  max-width: 36em;
  line-height: 1.6;
}
.cta-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.landing-cta .hero-cta.primary {
  background: #fff;
  color: var(--bz-brand-deep);
}
.landing-cta .hero-cta.ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.35);
  color: #fff;
}

/* —— Footer —— */
.landing-footer {
  padding: 56px 0 28px;
  background: #0c1222;
  color: rgba(255, 255, 255, 0.78);
}
.footer-main {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 28px;
  padding-bottom: 36px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.landing-footer .landing-brand { color: #fff; }
.footer-company {
  margin: 14px 0 8px;
  color: #fff;
  font-weight: 700;
}
.footer-desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  opacity: 0.75;
}
.footer-col h3 {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.45);
  font-weight: 700;
}
.footer-col a,
.footer-muted {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
}
.footer-col a:hover { color: #fff; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 18px;
  font-size: 12px;
  opacity: 0.55;
}

@media (max-width: 960px) {
  .landing-links,
  .landing-actions .nav-action:not(.primary) { display: none; }
  .landing-menu-toggle { display: flex; }
  .landing-nav.is-mobile-open .landing-mobile-panel {
    display: block;
    padding: 8px 20px 20px;
    border-top: 1px solid var(--bz-line);
    background: #fff;
  }
  .landing-mobile-nav { display: grid; gap: 4px; }
  .landing-mobile-link {
    padding: 12px 10px;
    border-radius: 8px;
    font-size: 14px;
    color: var(--bz-ink);
  }
  .pillar-row { grid-template-columns: repeat(2, 1fr); }
  .pillar-item {
    border-right: 0;
    border-bottom: 1px solid var(--bz-line);
  }
  .module-board { grid-template-columns: 1fr; }
  .module-tabs { flex-direction: row; flex-wrap: wrap; }
  .reason-grid { grid-template-columns: 1fr; }
  .wb-row { grid-template-columns: 1fr; gap: 4px; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .landing-hero { min-height: auto; padding: 56px 0 64px; }
}

@media (max-width: 560px) {
  .pillar-row { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr; }
}