:root {
  --bg: #faf8ff;
  --surface: #ffffff;
  --surface-soft: #f2f3ff;
  --surface-strong: #e2e7ff;
  --border: #d9def2;
  --text: #131b2e;
  --text-soft: #4e5468;
  --primary: #004ac6;
  --primary-strong: #0053db;
  --secondary: #006780;
  --shadow: 0 16px 40px rgba(28, 41, 79, 0.08);
  --shadow-soft: 0 10px 24px rgba(28, 41, 79, 0.06);
  --radius-lg: 18px;
  --radius-xl: 28px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(0, 83, 219, 0.10), transparent 28%),
    radial-gradient(circle at 10% 40%, rgba(118, 220, 255, 0.12), transparent 24%),
    linear-gradient(180deg, #faf8ff 0%, #f7f8ff 100%);
  font-family: Inter, "PingFang SC", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

.shell {
  width: min(1200px, calc(100% - 48px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(217, 222, 242, 0.8);
  background: rgba(250, 248, 255, 0.86);
  backdrop-filter: blur(14px);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
}

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 9px;
  background: linear-gradient(135deg, var(--primary), #4b82ff);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 800;
  box-shadow: 0 8px 18px rgba(0, 74, 198, 0.22);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-links a,
.nav-actions a {
  color: var(--text-soft);
  font-size: 14px;
  padding: 10px 14px;
  border-radius: 12px;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.nav-links a:hover,
.nav-actions a:hover {
  color: var(--primary);
  background: rgba(0, 74, 198, 0.06);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 48px;
  padding: 0 20px;
  border-radius: 14px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  box-shadow: 0 14px 30px rgba(0, 83, 219, 0.22);
}

.btn-primary:visited,
.btn-primary:hover,
.btn-primary:active {
  color: #fff;
}

.btn-secondary {
  color: var(--text);
  border-color: var(--border);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow-soft);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 48px;
  align-items: center;
  padding: 72px 0 48px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--primary);
  background: rgba(0, 74, 198, 0.08);
  border: 1px solid rgba(0, 74, 198, 0.12);
  font-size: 13px;
  font-weight: 600;
}

.hero h1 {
  margin: 18px 0 16px;
  font-size: clamp(40px, 6vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p {
  margin: 0;
  max-width: 620px;
  color: var(--text-soft);
  font-size: 18px;
  line-height: 1.75;
}

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

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 26px;
  color: var(--text-soft);
  font-size: 13px;
}

.hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.meta-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
}

.mockup {
  overflow: hidden;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(217, 222, 242, 0.9);
  background: rgba(255, 255, 255, 0.74);
  box-shadow: var(--shadow);
}

.mockup-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(217, 222, 242, 0.85);
  background: rgba(242, 243, 255, 0.8);
}

.mockup-dots {
  display: flex;
  gap: 7px;
}

.mockup-dots i {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  display: inline-block;
}

.mockup-dots i:nth-child(1) { background: #ef6464; }
.mockup-dots i:nth-child(2) { background: #f0a34f; }
.mockup-dots i:nth-child(3) { background: #59b57f; }

.mockup-url {
  flex: 1;
  text-align: center;
  padding: 8px 14px;
  border-radius: 12px;
  border: 1px solid rgba(217, 222, 242, 0.85);
  color: #707993;
  background: rgba(255, 255, 255, 0.7);
  font-size: 12px;
}

.mockup-body {
  padding: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(250, 248, 255, 0.98));
}

.product-preview {
  padding: 28px;
  min-height: 430px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-window {
  width: 100%;
  min-height: 360px;
  border-radius: 28px;
  border: 1px solid rgba(217, 222, 242, 0.95);
  background: linear-gradient(180deg, #f7f9ff 0%, #fefefe 100%);
  box-shadow: 0 22px 46px rgba(23, 35, 74, 0.14);
  overflow: hidden;
}

.preview-header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
  padding: 16px 22px;
  border-bottom: 1px solid rgba(217, 222, 242, 0.7);
  background: rgba(255, 255, 255, 0.9);
}

.preview-brand {
  color: var(--primary);
  font-weight: 700;
  font-size: 15px;
}

.preview-nav {
  display: flex;
  justify-content: center;
  gap: 18px;
  color: #7a8299;
  font-size: 12px;
}

.preview-header button {
  border: 0;
  height: 34px;
  padding: 0 16px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  color: #fff;
  font-size: 12px;
  font-weight: 600;
}

.preview-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.95fr);
  gap: 20px;
  padding: 34px 26px 30px;
}

.preview-copy h3 {
  margin: 14px 0 12px;
  font-size: 34px;
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.preview-copy h3 span {
  color: var(--primary);
}

.preview-copy p {
  margin: 0;
  color: #6b7285;
  font-size: 14px;
  line-height: 1.7;
}

.preview-pill {
  display: inline-flex;
  align-items: center;
  height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(0, 74, 198, 0.08);
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
}

.preview-actions {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}

.preview-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 16px;
  border-radius: 12px;
  font-size: 13px;
  font-weight: 600;
}

.preview-btn.primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  color: #fff;
  box-shadow: 0 10px 24px rgba(0, 83, 219, 0.18);
}

.preview-btn.secondary {
  border: 1px solid rgba(217, 222, 242, 0.95);
  color: var(--text);
  background: #fff;
}

.preview-card {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(120px, 0.8fr);
  gap: 14px;
  padding: 18px;
  align-items: stretch;
  border: 1px solid rgba(217, 222, 242, 0.85);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 18px 36px rgba(22, 35, 76, 0.12);
}

.candidate-card,
.score-card {
  border: 1px solid rgba(217, 222, 242, 0.9);
  border-radius: 18px;
  background: linear-gradient(180deg, #ffffff, #f8faff);
}

.candidate-card {
  padding: 18px;
}

.candidate-avatar {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: linear-gradient(135deg, #cfdcff, #e6ecff);
  margin-bottom: 14px;
}

.candidate-lines {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.candidate-lines b {
  font-size: 18px;
}

.candidate-lines span {
  color: #6d7488;
  font-size: 12px;
}

.score-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px 16px;
}

.score-title {
  color: #707790;
  font-size: 11px;
}

.score-number {
  font-size: 34px;
  font-weight: 700;
  color: var(--text);
}

.score-chart {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  min-height: 88px;
}

.score-chart i {
  display: block;
  width: calc(50% - 4px);
  border-radius: 999px 999px 6px 6px;
}

.score-chart i:nth-child(1) {
  height: 58px;
  background: linear-gradient(180deg, #7dc2ff, #4f87ff);
}

.score-chart i:nth-child(2) {
  height: 78px;
  background: linear-gradient(180deg, #82e8ea, #36c2c7);
}

.unlock-box {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border-radius: 12px;
  background: #f2f5ff;
  color: var(--primary);
  font-size: 12px;
  font-weight: 600;
}

.section {
  padding: 56px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 28px;
}

.section-header h2 {
  margin: 0 0 10px;
  font-size: 40px;
  line-height: 1.18;
  letter-spacing: -0.02em;
}

.section-header p {
  margin: 0;
  color: var(--text-soft);
  font-size: 16px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.workflow-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.workflow-step {
  padding: 24px;
  border: 1px solid rgba(217, 222, 242, 0.9);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.74);
  box-shadow: var(--shadow-soft);
}

.workflow-index {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  font-size: 14px;
  font-weight: 700;
}

.workflow-step h3 {
  margin: 14px 0 10px;
  font-size: 20px;
}

.workflow-step p {
  margin: 0;
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.7;
}

.card {
  min-height: 210px;
  padding: 24px;
  border: 1px solid rgba(217, 222, 242, 0.9);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow-soft);
}

.icon-chip {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: rgba(0, 74, 198, 0.10);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 700;
}

.icon-chip.alt {
  color: var(--secondary);
  background: rgba(0, 103, 128, 0.12);
}

.icon-chip.neutral {
  color: var(--text-soft);
  background: rgba(217, 222, 242, 0.8);
}

.card h3 {
  margin: 18px 0 10px;
  font-size: 22px;
  line-height: 1.35;
}

.card p {
  margin: 0;
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.75;
}

.security-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.35fr);
  gap: 20px;
  padding: 28px;
  border: 1px solid rgba(217, 222, 242, 0.9);
  border-radius: 32px;
  background: linear-gradient(180deg, rgba(242, 243, 255, 0.88), rgba(255, 255, 255, 0.72));
  box-shadow: var(--shadow-soft);
}

.security-copy {
  padding: 8px 8px 8px 0;
}

.security-copy h2 {
  margin: 14px 0 12px;
  font-size: 38px;
  line-height: 1.18;
  letter-spacing: -0.02em;
}

.security-copy p {
  margin: 0;
  color: var(--text-soft);
  font-size: 16px;
  line-height: 1.75;
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.security-item {
  padding: 18px;
  border: 1px solid rgba(217, 222, 242, 0.92);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.9);
}

.security-item h3 {
  margin: 0 0 6px;
  font-size: 17px;
}

.security-item p {
  margin: 0;
  color: var(--text-soft);
  font-size: 13px;
  line-height: 1.65;
}

.security-item.wide {
  grid-column: span 2;
}

.cta {
  text-align: center;
  padding: 72px 32px;
  border: 1px solid rgba(217, 222, 242, 0.95);
  border-radius: 32px;
  background: linear-gradient(180deg, #dfe8ff 0%, #edf1ff 100%);
  box-shadow: var(--shadow-soft);
}

.cta h2 {
  margin: 0 0 24px;
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.18;
  letter-spacing: -0.03em;
}

.footer {
  margin-top: 40px;
  border-top: 1px solid rgba(217, 222, 242, 0.9);
  background: rgba(255, 255, 255, 0.52);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 90px;
  color: var(--text-soft);
  font-size: 13px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.modal-mask {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(14, 23, 44, 0.38);
  backdrop-filter: blur(8px);
}

.modal-mask.active {
  display: flex;
}

.modal-card {
  position: relative;
  width: min(520px, 100%);
  padding: 30px;
  border: 1px solid rgba(217, 222, 242, 0.96);
  border-radius: 26px;
  background: #fff;
  box-shadow: 0 26px 56px rgba(14, 23, 44, 0.22);
}

.modal-close {
  position: absolute;
  top: 14px;
  right: 16px;
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 999px;
  background: #f2f5ff;
  color: var(--text-soft);
  font-size: 22px;
  line-height: 1;
}

.modal-title {
  margin: 0 0 10px;
  font-size: 30px;
  line-height: 1.2;
}

.modal-desc {
  margin: 0 0 18px;
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.7;
}

.modal-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
}

.modal-input {
  width: 100%;
  height: 50px;
  padding: 0 16px;
  border: 1px solid rgba(195, 198, 215, 0.9);
  border-radius: 14px;
  background: #fbfcff;
  color: var(--text);
  font-size: 15px;
}

.modal-submit {
  height: 50px;
  padding: 0 22px;
  border: 0;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  color: #fff;
  font-size: 14px;
  font-weight: 600;
}

.modal-submit:disabled {
  opacity: 0.7;
}

.modal-feedback {
  min-height: 22px;
  margin: 12px 0 0;
  color: var(--secondary);
  font-size: 13px;
}

.modal-feedback.error {
  color: #b42318;
}

@media (max-width: 1080px) {
  .hero,
  .security-panel {
    grid-template-columns: 1fr;
  }

  .cards,
  .workflow-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 820px) {
  .shell {
    width: min(100% - 32px, 1200px);
  }

  .nav-links,
  .nav-actions .btn-secondary {
    display: none;
  }

  .hero {
    padding-top: 48px;
    gap: 28px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .cards,
  .workflow-grid,
  .security-grid {
    grid-template-columns: 1fr;
  }

  .security-item.wide {
    grid-column: span 1;
  }

  .section-header h2,
  .security-copy h2 {
    font-size: 30px;
  }

  .footer-inner {
    flex-direction: column;
    justify-content: center;
    padding: 24px 0;
  }

  .preview-hero,
  .preview-card,
  .modal-form {
    grid-template-columns: 1fr;
  }

  .preview-header {
    grid-template-columns: 1fr;
    justify-items: flex-start;
  }

  .preview-nav {
    justify-content: flex-start;
    flex-wrap: wrap;
  }
}