:root {
  --ink: #f6f8f6;
  --muted: #c7d2ce;
  --line: rgba(246, 248, 246, 0.16);
  --panel: rgba(8, 13, 15, 0.78);
  --panel-solid: #101719;
  --green: #7be495;
  --teal: #56d5c8;
  --amber: #f2b84b;
  --coral: #ff7f68;
  --blue: #78a8ff;
  --dark: #070b0d;
  --soft: #edf4ef;
  --soft-ink: #17211e;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Microsoft YaHei", "Segoe UI", Arial, sans-serif;
  color: var(--ink);
  background: var(--dark);
  letter-spacing: 0;
}

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

a:visited,
a:hover,
a:active,
a:focus {
  color: inherit;
  text-decoration: none;
}

.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(18px, 5vw, 72px);
  background: rgba(7, 11, 13, 0.78);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 18px;
  white-space: nowrap;
}

.brand-logo {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  object-fit: contain;
}

.brand-text {
  color: var(--ink);
}

.mark {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  background: linear-gradient(135deg, var(--green), var(--teal) 55%, var(--amber));
  box-shadow: 0 0 24px rgba(86, 213, 200, 0.34);
}

nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
}

.nav-cta {
  color: #07100d !important;
  background: var(--green);
  padding: 10px 14px;
  border-radius: 8px;
  font-weight: 700;
}

.hero {
  min-height: 92vh;
  display: grid;
  align-items: end;
  position: relative;
  overflow: hidden;
  background-image:
    linear-gradient(90deg, rgba(7, 11, 13, 0.96) 0%, rgba(7, 11, 13, 0.76) 38%, rgba(7, 11, 13, 0.24) 100%),
    linear-gradient(0deg, rgba(7, 11, 13, 0.86) 0%, rgba(7, 11, 13, 0) 34%),
    url("/images/jundot-ai-editor-hero.png");
  background-size: cover;
  background-position: center;
  padding: 118px clamp(18px, 5vw, 72px) 48px;
}

.hero-inner {
  max-width: 1160px;
  width: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 660px) minmax(260px, 1fr);
  gap: 36px;
  align-items: end;
}

.eyebrow {
  color: var(--green);
  font-weight: 800;
  font-size: 14px;
  margin: 0 0 18px;
}

h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(42px, 7vw, 82px);
  line-height: 0.98;
  letter-spacing: 0;
}

.lead {
  margin: 24px 0 0;
  max-width: 640px;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.62;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 8px;
  border: 1px solid var(--line);
  font-weight: 800;
  cursor: pointer;
  font-size: 14px;
}

.button.primary {
  color: #06110d;
  background: var(--green);
  border-color: transparent;
}

.button.secondary {
  color: var(--ink);
  background: rgba(246, 248, 246, 0.08);
}

.stats {
  align-self: end;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.stat {
  min-height: 104px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  backdrop-filter: blur(16px);
}

.stat strong {
  display: block;
  font-size: 24px;
  color: var(--ink);
}

.stat span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  line-height: 1.45;
  font-size: 14px;
}

section {
  padding: 86px clamp(18px, 5vw, 72px);
}

.section-inner {
  max-width: 1160px;
  margin: 0 auto;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(260px, 0.65fr);
  gap: 42px;
  align-items: end;
  margin-bottom: 34px;
}

h2 {
  margin: 0;
  color: var(--soft-ink);
  font-size: clamp(30px, 4vw, 50px);
  line-height: 1.08;
  letter-spacing: 0;
}

.section-head p {
  margin: 0;
  color: #53615c;
  line-height: 1.72;
  font-size: 16px;
}

.light {
  color: var(--soft-ink);
  background: var(--soft);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.feature {
  min-height: 228px;
  padding: 22px;
  background: #ffffff;
  border: 1px solid #d9e3dd;
  border-radius: 8px;
}

.feature b {
  display: inline-grid;
  place-items: center;
  margin-bottom: 20px;
  border-radius: 8px;
  color: #07110d;
  background: var(--green);
  font-size: 18px;
}

.feature h3 {
  margin: 0 0 10px;
  font-size: 20px;
}

.feature p {
  margin: 0;
  color: #52605b;
  line-height: 1.68;
}

.flow {
  background: #101719;
}

.flow h2,
.flow .section-head p {
  color: var(--ink);
}

.flow .section-head p {
  color: var(--muted);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}

.step {
  position: relative;
  min-height: 186px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(246, 248, 246, 0.06);
}

.step em {
  display: block;
  color: var(--amber);
  font-style: normal;
  font-weight: 800;
  margin-bottom: 18px;
}

.step h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.step p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
  font-size: 14px;
}

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 36px;
  align-items: start;
}

.copy-list {
  display: grid;
  gap: 14px;
}

.copy-item {
  padding: 20px;
  border: 1px solid #d9e3dd;
  border-radius: 8px;
  background: #ffffff;
}

.copy-item h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.copy-item p {
  margin: 0;
  color: #52605b;
  line-height: 1.68;
}

.release {
  color: var(--ink);
  background: #14120f;
  border-top: 1px solid rgba(242, 184, 75, 0.22);
  border-bottom: 1px solid rgba(242, 184, 75, 0.22);
}

.release h2 {
  color: var(--ink);
}

.release-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 30px;
}

.release-card {
  min-height: 158px;
  padding: 22px;
  border-radius: 8px;
  border: 1px solid rgba(242, 184, 75, 0.2);
  background: rgba(255, 255, 255, 0.05);
}

.release-card h3 {
  margin: 0 0 10px;
  color: var(--amber);
}

.release-card p {
  margin: 0;
  color: #d9d0bd;
  line-height: 1.65;
}

.cta {
  color: var(--soft-ink);
  background: #f7faf7;
}

.cta-box {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  padding: 32px;
  border-radius: 8px;
  background: #ffffff;
  border: 1px solid #d9e3dd;
}

.cta h2 {
  margin-bottom: 12px;
}

.cta p {
  margin: 0;
  color: #53615c;
  line-height: 1.72;
}

footer {
  padding: 24px clamp(18px, 5vw, 72px);
  color: #9eaaa5;
  background: #070b0d;
  border-top: 1px solid var(--line);
  font-size: 13px;
}

.footer-inner {
  max-width: 1160px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}

.page-content {
  padding-top: 100px;
  min-height: 80vh;
}

.page-content.light {
  background: var(--soft);
  color: var(--soft-ink);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid #d9e3dd;
  border-radius: 8px;
  font-size: 15px;
  font-family: inherit;
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(123, 228, 149, 0.2);
}

.text-success {
  color: #2e7d32;
  padding: 12px;
  background: #e8f5e9;
  border-radius: 8px;
  margin-bottom: 20px;
}

.text-error {
  color: #c62828;
  padding: 12px;
  background: #ffebee;
  border-radius: 8px;
  margin-bottom: 20px;
}

@media (max-width: 900px) {
  .topbar {
    position: absolute;
  }

  nav {
    display: none;
  }

  .hero {
    min-height: 94vh;
    background-position: 58% center;
  }

  .hero-inner,
  .section-head,
  .split,
  .cta-box {
    grid-template-columns: 1fr;
  }

  .stats,
  .feature-grid,
  .timeline,
  .release-grid {
    grid-template-columns: 1fr;
  }

  .cta-box {
    padding: 24px;
  }
}