/* ===================================================
   尚睿科技 · Landing Page 专属样式
   =================================================== */

/* -----------------------------------------------
   Header / Nav
----------------------------------------------- */
.lp-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(254,254,254,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  height: 64px;
  display: flex;
  align-items: center;
}
.lp-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.lp-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  flex-shrink: 0;
}
.lp-brand-text {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink-1);
}
.lp-nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.lp-nav-link {
  font-size: 14px;
  color: var(--ink-3);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.15s;
}
.lp-nav-link:hover { color: var(--ink-1); }
.lp-header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* -----------------------------------------------
   Hero
----------------------------------------------- */
.lp-hero {
  background: linear-gradient(135deg, #FFF5F5 0%, #FEFEFE 100%);
  padding: 100px 32px 80px;
  position: relative;
  overflow: hidden;
}
.lp-hero::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -120px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255,107,107,0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.lp-hero::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -60px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(74,144,226,0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.lp-hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 64px;
  position: relative;
  z-index: 1;
}
.lp-hero-content {
  flex: 1;
  min-width: 0;
}
.lp-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--brand-primary-light);
  color: var(--brand-primary);
  border-radius: 100px;
  padding: 5px 14px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 24px;
  letter-spacing: 0.02em;
}
.lp-hero-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-primary);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}
.lp-hero-h1 {
  font-size: 48px;
  font-weight: 700;
  color: var(--ink-1);
  line-height: 1.2;
  margin: 0 0 20px;
  letter-spacing: -0.02em;
}
.lp-hero-h1 span {
  color: var(--brand-primary);
  position: relative;
}
.lp-hero-sub {
  font-size: 18px;
  color: var(--ink-3);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 500px;
}
.lp-hero-ctas {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.lp-cta-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--brand-primary);
  color: white;
  padding: 14px 32px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 14px rgba(255,107,107,0.35);
}
.lp-cta-primary:hover {
  background: var(--brand-primary-hover);
  color: white;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(255,107,107,0.45);
}
.lp-cta-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-3);
  padding: 14px 24px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid var(--border-default);
  cursor: pointer;
  background: var(--bg-card);
  transition: border-color 0.2s, color 0.2s;
}
.lp-cta-secondary:hover {
  border-color: var(--ink-4);
  color: var(--ink-2);
}
.lp-hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 40px;
}
.lp-stat-item { text-align: left; }
.lp-stat-num {
  font-size: 24px;
  font-weight: 700;
  color: var(--ink-1);
  line-height: 1.2;
}
.lp-stat-label { font-size: 12px; color: var(--ink-4); margin-top: 2px; }

.lp-hero-visual {
  flex-shrink: 0;
  width: 480px;
}
.lp-hero-visual img {
  width: 100%;
  height: auto;
  border-radius: 20px;
  filter: drop-shadow(0 20px 40px rgba(15,15,20,0.08));
}

/* -----------------------------------------------
   Section wrapper
----------------------------------------------- */
.lp-section {
  padding: 100px 32px;
}
.lp-section.alt-bg {
  background: var(--bg-soft);
}
.lp-section-inner {
  max-width: 1200px;
  margin: 0 auto;
}
.lp-section-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--brand-primary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 12px;
}
.lp-section-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--ink-1);
  line-height: 1.3;
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}
.lp-section-sub {
  font-size: 16px;
  color: var(--ink-3);
  line-height: 1.7;
  max-width: 560px;
  margin-bottom: 60px;
}

/* -----------------------------------------------
   Features (三栏能力)
----------------------------------------------- */
.lp-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.lp-feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.25s, transform 0.25s;
  cursor: default;
}
.lp-feature-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-3px);
}
.lp-feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  background: var(--brand-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 20px;
}
.lp-feature-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink-1);
  margin-bottom: 10px;
}
.lp-feature-desc {
  font-size: 14px;
  color: var(--ink-3);
  line-height: 1.7;
}
.lp-feature-bullets {
  margin-top: 16px;
  padding-left: 0;
  list-style: none;
}
.lp-feature-bullets li {
  font-size: 13px;
  color: var(--ink-4);
  padding: 3px 0;
  display: flex;
  align-items: center;
  gap: 6px;
}
.lp-feature-bullets li::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--brand-primary);
  opacity: 0.5;
  flex-shrink: 0;
}

/* -----------------------------------------------
   Steps (三步使用)
----------------------------------------------- */
.lp-steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  position: relative;
}
.lp-steps-grid::before {
  content: '';
  position: absolute;
  top: 28px;
  left: calc(16.66% + 12px);
  right: calc(16.66% + 12px);
  height: 2px;
  background: linear-gradient(90deg, var(--border-default), var(--border-default));
  border-top: 2px dashed var(--border-default);
}
.lp-step-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-card);
  text-align: center;
}
.lp-step-num {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--brand-primary);
  color: white;
  font-size: 22px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  box-shadow: 0 4px 14px rgba(255,107,107,0.3);
  position: relative;
  z-index: 1;
}
.lp-step-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink-1);
  margin-bottom: 10px;
}
.lp-step-desc {
  font-size: 13px;
  color: var(--ink-3);
  line-height: 1.7;
}

/* -----------------------------------------------
   Comparison table
----------------------------------------------- */
.lp-compare-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.lp-compare-table {
  width: 100%;
  border-collapse: collapse;
}
.lp-compare-table th,
.lp-compare-table td {
  padding: 16px 24px;
  text-align: center;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 14px;
}
.lp-compare-table tr:last-child th,
.lp-compare-table tr:last-child td { border-bottom: none; }
.lp-compare-table thead th {
  background: var(--bg-soft);
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding-top: 20px;
  padding-bottom: 20px;
}
.lp-compare-table thead th.highlight {
  background: var(--brand-primary-light);
  color: var(--brand-primary);
}
.lp-compare-table td:first-child {
  text-align: left;
  font-weight: 500;
  color: var(--ink-2);
}
.lp-compare-table td.col-naver { color: var(--ink-4); }
.lp-compare-table td.col-sr { color: var(--brand-primary); font-weight: 600; }
.compare-check { color: var(--success); font-size: 18px; }
.compare-cross { color: var(--ink-5); font-size: 18px; }
.compare-tag {
  display: inline-block;
  background: var(--brand-primary-light);
  color: var(--brand-primary);
  border-radius: 100px;
  padding: 2px 10px;
  font-size: 12px;
  font-weight: 600;
}

/* -----------------------------------------------
   Footer
----------------------------------------------- */
.lp-footer {
  background: var(--ink-1);
  color: rgba(255,255,255,0.5);
  padding: 48px 32px;
}
.lp-footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.lp-footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.lp-footer-brand-text {
  font-size: 15px;
  font-weight: 700;
  color: rgba(255,255,255,0.8);
}
.lp-footer-links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}
.lp-footer-link {
  font-size: 13px;
  color: rgba(255,255,255,0.4);
  text-decoration: none;
  transition: color 0.15s;
}
.lp-footer-link:hover { color: rgba(255,255,255,0.7); }
.lp-footer-copy {
  font-size: 12px;
  color: rgba(255,255,255,0.25);
  text-align: center;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.06);
  max-width: 1200px;
  margin: 24px auto 0;
}

/* -----------------------------------------------
   Responsive landing
----------------------------------------------- */
@media (max-width: 960px) {
  .lp-hero-inner { flex-direction: column; gap: 40px; }
  .lp-hero-visual { width: 100%; max-width: 480px; }
  .lp-hero-h1 { font-size: 36px; }
  .lp-features-grid { grid-template-columns: 1fr; }
  .lp-steps-grid { grid-template-columns: 1fr; }
  .lp-steps-grid::before { display: none; }
  .lp-section { padding: 60px 20px; }
  .lp-hero { padding: 64px 20px 60px; }
  .lp-section-title { font-size: 28px; }
}