:root {
  --ink: #1c1a17;
  --ink-soft: #3d3a35;
  --paper: #f7f0e6;
  --paper-strong: #fff8ee;
  --accent: #d45b31;
  --accent-2: #0f766e;
  --accent-3: #c59a5c;
  --shadow: 0 28px 80px rgba(28, 26, 23, 0.16);
  --font-display: "ZCOOL XiaoWei", "Noto Serif SC", "Songti SC", serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: linear-gradient(155deg, #f8efe3 0%, #eef4f2 45%, #f8efe3 100%);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

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

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

.bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(0px);
  opacity: 0.5;
  z-index: 0;
}

.orb-1 {
  width: 420px;
  height: 420px;
  background: radial-gradient(circle at 30% 30%, rgba(212, 91, 49, 0.5), transparent 70%);
  top: -120px;
  right: -160px;
}

.orb-2 {
  width: 360px;
  height: 360px;
  background: radial-gradient(circle at 70% 70%, rgba(15, 118, 110, 0.5), transparent 70%);
  bottom: 120px;
  left: -140px;
}

.bg-grid {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(28, 26, 23, 0.08) 1px, transparent 0);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at 30% 10%, black 0%, transparent 70%);
  z-index: 0;
  pointer-events: none;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 248, 238, 0.75);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(28, 26, 23, 0.08);
}

.nav {
  max-width: 1120px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.95rem;
}

.nav-links a {
  position: relative;
  padding-bottom: 4px;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  background: var(--accent);
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
  font-weight: 600;
  box-shadow: 0 12px 24px rgba(212, 91, 49, 0.25);
}

main {
  position: relative;
  z-index: 1;
}

.hero {
  max-width: 1120px;
  margin: 0 auto;
  padding: 80px 24px 40px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
  align-items: center;
}

.eyebrow {
  font-size: 0.9rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-2);
  font-weight: 600;
}

.hero-text h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 4vw, 3.4rem);
  margin: 16px 0 20px;
  line-height: 1.2;
}

.lead {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

.hero-actions {
  margin-top: 24px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  border: 1px solid transparent;
}

.btn.primary {
  background: var(--accent-2);
  color: #fff;
  box-shadow: 0 12px 30px rgba(15, 118, 110, 0.25);
}

.btn.ghost {
  border-color: rgba(28, 26, 23, 0.2);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.7);
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.hero-tags span {
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(28, 26, 23, 0.08);
  font-size: 0.85rem;
}

.hero-card {
  background: rgba(255, 255, 255, 0.85);
  border-radius: 24px;
  padding: 28px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(28, 26, 23, 0.08);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 600;
}

.badge {
  background: var(--accent-3);
  color: #fff;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
}

.card-list {
  margin-top: 20px;
  display: grid;
  gap: 16px;
}

.card-list h3 {
  margin: 0 0 6px;
}

.section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 70px 24px 40px;
}

.section-title h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3vw, 2.8rem);
  margin: 12px 0 0;
}

.grid {
  display: grid;
  gap: 20px;
  margin-top: 30px;
}

.features {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.feature-card {
  padding: 22px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid rgba(28, 26, 23, 0.08);
  box-shadow: 0 16px 40px rgba(28, 26, 23, 0.08);
}

.feature-card h3 {
  margin-top: 0;
}

.workflow {
  position: relative;
}

.steps {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.step {
  padding: 20px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(28, 26, 23, 0.08);
}

.step span {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent);
}

.security-content {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  align-items: center;
}

.security-content ul {
  margin: 0;
  padding-left: 20px;
  line-height: 1.9;
  color: var(--ink-soft);
}

.security-panel {
  background: rgba(255, 255, 255, 0.85);
  border-radius: 20px;
  padding: 24px;
  border: 1px solid rgba(28, 26, 23, 0.08);
  box-shadow: var(--shadow);
}

.pill-group {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.pill-group span {
  background: rgba(15, 118, 110, 0.12);
  color: var(--accent-2);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 0.85rem;
}

.showcase-grid {
  display: grid;
  gap: 30px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  align-items: center;
}

.showcase-media {
  background: rgba(255, 255, 255, 0.85);
  border-radius: 24px;
  padding: 18px;
  border: 1px solid rgba(28, 26, 23, 0.08);
  box-shadow: var(--shadow);
}

.showcase-media img {
  border-radius: 16px;
}

.checklist {
  margin-top: 18px;
  display: grid;
  gap: 10px;
}

.checklist div {
  padding-left: 24px;
  position: relative;
}

.checklist div::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent-2);
}

.contact-card {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  padding: 30px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(28, 26, 23, 0.08);
  box-shadow: var(--shadow);
}

.contact-list {
  display: grid;
  gap: 16px;
  margin-top: 18px;
}

.contact-list span {
  display: block;
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-bottom: 4px;
}

.contact-actions {
  display: grid;
  gap: 12px;
  align-content: start;
}

.site-footer {
  padding: 40px 24px 60px;
  border-top: 1px solid rgba(28, 26, 23, 0.1);
  background: rgba(255, 248, 238, 0.7);
}

.footer-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: space-between;
  color: var(--ink-soft);
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--ink);
  margin: 0 0 8px;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  animation: fade-up 0.8s ease forwards;
}

.reveal.delay-1 {
  animation-delay: 0.15s;
}

.reveal.delay-2 {
  animation-delay: 0.3s;
}

.reveal.delay-3 {
  animation-delay: 0.45s;
}

.reveal.delay-4 {
  animation-delay: 0.6s;
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 960px) {
  .nav {
    flex-wrap: wrap;
    justify-content: center;
  }

  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
  }

  .nav-cta {
    width: 100%;
    text-align: center;
  }
}

@media (max-width: 700px) {
  .hero {
    padding-top: 60px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .contact-card {
    padding: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    animation: none;
    opacity: 1;
    transform: none;
  }
}