@import url("https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap");

/* BilzatWork 官网 · 首页 / 产品页 */
:root {
  --site-text: #142033;
  --site-sub: #5b6b7c;
  --site-primary: #2b9bff;
  --site-primary-dark: #1a7fe0;
  --site-teal: #12d4b8;
  --site-coral: #ff7a6e;
  --site-bg: #eef2f7;
  --site-card: #ffffff;
  --site-border: #e2e8f0;
  --site-radius: 22px;
  --site-shadow: 0 10px 32px rgba(30, 41, 59, 0.08);
  --site-grad: linear-gradient(135deg, #2b9bff 0%, #12d4b8 100%);
  --site-page:
    radial-gradient(ellipse 80% 55% at 12% -10%, rgba(43, 155, 255, 0.16), transparent 58%),
    radial-gradient(ellipse 60% 45% at 90% 0%, rgba(18, 212, 184, 0.12), transparent 52%),
    linear-gradient(180deg, #f4f8fc 0%, #eef2f7 42%, #f7f9fb 100%);
}

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

body.site-page {
  min-height: 100vh;
  font-family: "Plus Jakarta Sans", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--site-text);
  background: var(--site-page);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.site-shell {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
}

/* —— Nav (full bleed bar) —— */
.site-nav-bleed {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(14px) saturate(1.1);
  background: rgba(247, 250, 252, 0.82);
  border-bottom: 1px solid rgba(226, 232, 240, 0.75);
}
.site-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  position: relative;
}
.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.site-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: var(--site-grad);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 800;
  box-shadow: 0 8px 20px rgba(43, 155, 255, 0.28);
}
.site-nav-toggle {
  display: none;
  border: 1px solid var(--site-border);
  background: #fff;
  border-radius: 10px;
  width: 40px;
  height: 40px;
  font-size: 18px;
  cursor: pointer;
}
.site-nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.site-nav-links a {
  padding: 9px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 650;
  color: var(--site-sub);
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(226, 232, 240, 0.9);
  transition: color .15s, background .15s, transform .15s;
}
.site-nav-links a:hover {
  color: var(--site-primary-dark);
  background: #fff;
  transform: translateY(-1px);
}
.site-nav-links a.is-active {
  color: var(--site-primary-dark);
  background: #fff;
  box-shadow: 0 4px 12px rgba(30, 41, 59, 0.06);
}
.site-nav-links a.primary {
  color: #fff;
  background: var(--site-text);
  border-color: transparent;
  box-shadow: 0 6px 16px rgba(30, 41, 59, 0.16);
}

/* —— Full-bleed hero —— */
.site-hero-bleed {
  position: relative;
  min-height: calc(100vh - 68px);
  display: flex;
  align-items: center;
  overflow: hidden;
  width: 100%;
}
.site-hero-plane {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(105deg, rgba(20, 32, 51, 0.04) 0%, transparent 42%),
    radial-gradient(ellipse 90% 70% at 70% 40%, rgba(43, 155, 255, 0.22), transparent 55%),
    radial-gradient(ellipse 60% 50% at 15% 80%, rgba(18, 212, 184, 0.18), transparent 50%),
    linear-gradient(180deg, #e8f2fb 0%, #f3f7fb 55%, #eef2f7 100%);
  z-index: 0;
  animation: site-plane-shift 14s ease-in-out infinite alternate;
}
.site-hero-plane::after {
  content: "";
  position: absolute;
  right: max(-4%, 2vw);
  top: 12%;
  width: min(52vw, 640px);
  height: min(58vh, 520px);
  border-radius: 28px 0 0 28px;
  background:
    linear-gradient(145deg, rgba(255,255,255,0.55), rgba(255,255,255,0.12)),
    linear-gradient(160deg, #2b9bff 0%, #12d4b8 70%, #0b9a88 100%);
  box-shadow: 0 30px 80px rgba(26, 127, 224, 0.22);
  opacity: 0.92;
  animation: site-panel-rise 1.1s cubic-bezier(.2,.8,.2,1) both;
}
@keyframes site-plane-shift {
  from { transform: scale(1) translate3d(0,0,0); }
  to { transform: scale(1.03) translate3d(-1%, 1%, 0); }
}
@keyframes site-panel-rise {
  from { opacity: 0; transform: translate3d(40px, 24px, 0); }
  to { opacity: 0.92; transform: translate3d(0, 0, 0); }
}
.site-hero-content {
  position: relative;
  z-index: 1;
  padding: 56px 0 72px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  width: min(1180px, calc(100% - 48px));
  animation: site-fade-up .8s ease both;
}
@keyframes site-fade-up {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}
.site-brand-hero {
  font-size: clamp(48px, 8vw, 84px);
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 0.98;
  margin: 0 0 18px;
  background: linear-gradient(120deg, #142033 8%, #1a7fe0 52%, #0b9a88 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.site-hero-content h2,
.site-hero h2 {
  font-size: clamp(22px, 3.2vw, 34px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.25;
  margin: 0 0 14px;
  color: var(--site-text);
}
.site-hero-content .lead,
.site-hero p.lead {
  font-size: 16px;
  line-height: 1.7;
  color: var(--site-sub);
  max-width: 520px;
  margin: 0 0 28px;
}

.site-cta { display: flex; flex-wrap: wrap; gap: 12px; }
.site-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: 14px;
  font-size: 15px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: transform .15s, box-shadow .15s, filter .15s;
}
.site-btn:hover { transform: translateY(-1px); }
.site-btn-primary {
  color: #fff;
  background: var(--site-grad);
  box-shadow: 0 10px 24px rgba(43, 155, 255, 0.32);
}
.site-btn-primary:hover {
  filter: brightness(1.04);
  box-shadow: 0 12px 28px rgba(43, 155, 255, 0.38);
}
.site-btn-ghost {
  color: var(--site-text);
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--site-border);
  box-shadow: 0 4px 14px rgba(30, 41, 59, 0.05);
}

/* —— Sections —— */
.site-section { padding: 72px 0; }
.site-section-head { max-width: 560px; margin-bottom: 28px; }
.site-section-head h3 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0 0 10px;
}
.site-section-head p {
  color: var(--site-sub);
  font-size: 15px;
  line-height: 1.65;
}

.site-path-rail {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.site-path-rail li {
  background: #fff;
  border: 1px solid var(--site-border);
  border-radius: 18px;
  padding: 20px 18px;
  box-shadow: var(--site-shadow);
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: transform .2s;
}
.site-path-rail li:hover { transform: translateY(-3px); }
.site-path-rail span {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--site-primary-dark);
}
.site-path-rail b { font-size: 17px; font-weight: 800; }
.site-path-rail em { font-style: normal; font-size: 13px; color: var(--site-sub); }

.site-mods {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.site-mod {
  display: block;
  background: #fff;
  border: 1px solid var(--site-border);
  border-radius: 18px;
  padding: 22px 20px;
  box-shadow: 0 6px 20px rgba(30, 41, 59, 0.05);
  transition: transform .18s, border-color .18s, box-shadow .18s;
  min-height: 132px;
}
.site-mod:hover {
  transform: translateY(-3px);
  border-color: rgba(43, 155, 255, 0.35);
  box-shadow: 0 14px 32px rgba(30, 41, 59, 0.08);
}
.site-mod strong {
  display: block;
  font-size: 16px;
  font-weight: 800;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}
.site-mod p {
  margin: 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--site-sub);
}

.site-ai-band {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 24px;
  align-items: center;
  background: linear-gradient(135deg, rgba(43, 155, 255, 0.08), rgba(18, 212, 184, 0.1));
  border: 1px solid rgba(43, 155, 255, 0.15);
  border-radius: 28px;
  padding: 36px 32px;
  margin: 8px 0 24px;
}
.site-ai-copy h3 {
  font-size: clamp(22px, 2.6vw, 28px);
  font-weight: 800;
  margin: 0 0 12px;
  letter-spacing: -0.03em;
}
.site-ai-copy p {
  color: var(--site-sub);
  font-size: 15px;
  line-height: 1.7;
  margin: 0 0 20px;
  max-width: 480px;
}
.site-ai-visual {
  position: relative;
  min-height: 220px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 10px;
  padding: 12px;
}
.site-ai-chip {
  background: #fff;
  border: 1px solid var(--site-border);
  border-radius: 999px;
  padding: 10px 16px;
  font-size: 13px;
  color: #374151;
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.06);
  animation: site-chip-in .7s ease both;
}
.site-ai-chip:nth-child(2) { animation-delay: .12s; margin-left: 18px; }
.site-ai-chip:nth-child(3) { animation-delay: .24s; margin-left: 8px; }
@keyframes site-chip-in {
  from { opacity: 0; transform: translateX(12px); }
  to { opacity: 1; transform: translateX(0); }
}
.site-ai-glow {
  position: absolute;
  right: 8px;
  bottom: 8px;
  width: 72px;
  height: 72px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 22px;
  color: #fff;
  background: linear-gradient(145deg, #4ade80, #16a34a);
  box-shadow: 0 14px 36px rgba(34, 197, 94, 0.35);
  animation: site-ai-pulse 2.8s ease-in-out infinite;
}
@keyframes site-ai-pulse {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.site-flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.site-flow-item {
  background: rgba(255,255,255,0.95);
  border: 1px solid var(--site-border);
  border-radius: 18px;
  padding: 22px 20px;
  box-shadow: 0 4px 16px rgba(30, 41, 59, 0.05);
}
.site-flow-item .n {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--site-primary-dark);
  margin-bottom: 10px;
}
.site-flow-item h4 { font-size: 16px; margin: 0 0 8px; }
.site-flow-item p {
  font-size: 13px;
  color: var(--site-sub);
  line-height: 1.6;
  margin: 0;
}

/* —— Product —— */
.site-product-hero-bleed {
  width: 100%;
  padding: 48px 0 28px;
  background:
    radial-gradient(ellipse 70% 80% at 80% 0%, rgba(43, 155, 255, 0.14), transparent 55%),
    radial-gradient(ellipse 50% 60% at 10% 40%, rgba(18, 212, 184, 0.1), transparent 50%);
}
.site-product-hero-bleed .eyebrow,
.site-product-hero .eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--site-primary-dark);
  margin-bottom: 12px;
}
.site-product-hero-bleed h1 {
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 1.05;
  margin: 0 0 14px;
  background: linear-gradient(120deg, #142033 10%, #1a7fe0 60%, #0b9a88 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.site-product-hero-bleed .lead {
  font-size: 16px;
  color: var(--site-sub);
  line-height: 1.7;
  max-width: 620px;
  margin: 0 0 24px;
}
.site-toc {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}
.site-toc a {
  font-size: 12px;
  font-weight: 700;
  padding: 7px 12px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--site-border);
  color: var(--site-sub);
}
.site-toc a:hover { color: var(--site-primary-dark); border-color: #bfdbfe; }

.site-feature {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 20px;
  align-items: stretch;
  margin-bottom: 18px;
}
.site-feature.reverse { direction: rtl; }
.site-feature.reverse > * { direction: ltr; }
.site-feature-copy {
  background: #fff;
  border: 1px solid var(--site-border);
  border-radius: var(--site-radius);
  padding: 28px 26px;
  box-shadow: var(--site-shadow);
}
.site-feature-copy h3 {
  font-size: 22px;
  font-weight: 800;
  margin: 0 0 10px;
  letter-spacing: -0.02em;
}
.site-feature-copy p {
  color: var(--site-sub);
  font-size: 14px;
  line-height: 1.7;
  margin: 0 0 14px;
}
.site-feature-copy ul {
  margin: 0;
  padding-left: 18px;
  color: var(--site-sub);
  font-size: 14px;
  line-height: 1.8;
}
.site-feature-visual {
  border-radius: var(--site-radius);
  min-height: 220px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  color: #fff;
  box-shadow: var(--site-shadow);
}
.site-feature-visual.v1 { background: linear-gradient(145deg, #2b9bff, #12d4b8); }
.site-feature-visual.v2 { background: linear-gradient(160deg, #ff8a7a, #ffb4a2); }
.site-feature-visual.v3 { background: linear-gradient(145deg, #14d9c0, #0bb8a0); }
.site-feature-visual.v4 { background: linear-gradient(160deg, #5eb8ff, #1a7fe0); }
.site-feature-visual.v5 { background: linear-gradient(145deg, #38bdf8, #0284c7); }
.site-feature-visual.v6 { background: linear-gradient(145deg, #34d399, #059669); }
.site-feature-visual.v7 { background: linear-gradient(145deg, #4ade80, #15803d); }
.site-feature-visual strong {
  font-size: 22px;
  font-weight: 800;
  display: block;
  margin-bottom: 6px;
}
.site-feature-visual span {
  font-size: 14px;
  opacity: 0.9;
  line-height: 1.5;
}

.site-matrix-wrap {
  overflow: auto;
  border-radius: 18px;
  border: 1px solid var(--site-border);
  background: #fff;
  box-shadow: var(--site-shadow);
}
.site-matrix {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.site-matrix th,
.site-matrix td {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid #f1f5f9;
}
.site-matrix th {
  background: #f8fafc;
  font-weight: 700;
  color: var(--site-text);
}
.site-matrix td { color: var(--site-sub); }
.site-matrix tr:last-child td { border-bottom: none; }
.site-matrix td:first-child {
  font-weight: 700;
  color: var(--site-text);
  white-space: nowrap;
}

.site-cta-band {
  margin: 24px 0 40px;
  padding: 40px 28px;
  border-radius: 28px;
  background: #fff;
  border: 1px solid var(--site-border);
  box-shadow: var(--site-shadow);
  text-align: center;
}
.site-cta-band h3 {
  font-size: 24px;
  font-weight: 800;
  margin: 0 0 8px;
}
.site-cta-band p {
  color: var(--site-sub);
  margin: 0 0 20px;
}
.site-cta-band .site-cta { justify-content: center; }

/* legacy tiles still ok if used */
.site-bento {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

@media (max-width: 960px) {
  .site-path-rail,
  .site-mods,
  .site-flow,
  .site-feature,
  .site-ai-band {
    grid-template-columns: 1fr;
  }
  .site-feature.reverse { direction: ltr; }
  .site-hero-plane::after {
    opacity: 0.35;
    width: 70vw;
    height: 40vh;
    top: auto;
    bottom: 0;
    right: -10%;
  }
  .site-hero-content { max-width: none; }
  .site-nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .site-nav-links {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    left: 0;
    flex-direction: column;
    align-items: stretch;
    background: #fff;
    border: 1px solid var(--site-border);
    border-radius: 16px;
    padding: 10px;
    box-shadow: var(--site-shadow);
  }
  .site-nav-links.is-open { display: flex; }
  .site-hero-bleed { min-height: auto; }
  .site-hero-content { padding: 36px 0 64px; }
  .site-ai-band { padding: 28px 22px; }
}

@media (min-width: 1100px) {
  .site-hero-content {
    margin-left: max(24px, calc((100vw - 1180px) / 2));
    margin-right: auto;
    width: min(560px, 46vw);
  }
}