:root {
  --pink: #ff7aa2;
  --orange: #ff9b55;
  --amber: #ffd3ad;
  --ink: #1b1e24;
  --muted: #6b7280;
  --line: #e9edf3;
  --bg: #ffffff;
  --soft: #f7f9fc;
  --card: #ffffff;
  --grad-warm: linear-gradient(135deg, #ffb46a 0%, #ff7ab6 100%);
  --grad-soft: linear-gradient(140deg, #fff2ea 0%, #ffeaf6 100%);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Microsoft YaHei", "PingFang SC", "Heiti SC", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
}

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

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

.container {
  width: min(1200px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  backdrop-filter: blur(12px);
}

.nav {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
}

.brand-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--grad-warm);
  transform: rotate(45deg);
  position: relative;
}

.brand-icon::after {
  content: "";
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 2px;
  background: #fff;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  font-size: 14px;
  color: #3f434a;
}

.nav-links a {
  padding: 6px 4px;
}

.nav-links a:hover {
  color: var(--orange);
}

.nav-cta {
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--grad-warm);
  color: #fff;
  font-size: 13px;
  box-shadow: 0 10px 20px rgba(255, 147, 103, 0.28);
}

body.page-home .nav-links a[href="index.html"],
body.page-product .nav-links a[href="product.html"],
body.page-cases .nav-links a[href="cases.html"],
body.page-contact .nav-links a[href="contact.html"] {
  color: var(--orange);
  position: relative;
}

body.page-home .nav-links a[href="index.html"]::after,
body.page-product .nav-links a[href="product.html"]::after,
body.page-cases .nav-links a[href="cases.html"]::after,
body.page-contact .nav-links a[href="contact.html"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 2px;
  border-radius: 2px;
  background: var(--grad-warm);
}

.section {
  padding: 70px 0;
}

.section-title {
  text-align: center;
  font-size: 24px;
  margin-bottom: 8px;
}

.section-subtitle {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 36px;
}

.btn {
  padding: 10px 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 14px;
  display: inline-flex;
  gap: 6px;
  align-items: center;
}

.btn-primary {
  background: var(--grad-warm);
  color: #fff;
  box-shadow: 0 12px 24px rgba(255, 132, 105, 0.28);
}

.btn-ghost {
  border-color: #ffd6bf;
  color: #ff7c5c;
  background: #fff7f1;
}

.hero {
    padding: 80px 0 90px;
    background: radial-gradient(circle at 18% 20%, #fff2e8 0%, rgba(255, 255, 255, 0) 40%), radial-gradient(circle at 82% 10%, #ffeef8 0%, rgba(255, 255, 255, 0) 42%), linear-gradient(180deg, #fff 0%, #f9fbff 100%);
    position: relative;
    overflow: hidden;
    background-color: #fef3fa;
}

.hero-grid {

  align-items: center;
  align-content:center;
  margin:0 auto
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: #fff1ea;
  color: #ff7c5c;
  border: 1px solid #ffe0d1;
  font-size: 12px;
  margin-bottom: 16px;
  margin:0 auto;
}

.hero-title {
  font-size: 44px;
  line-height: 1.2;
  margin-bottom: 12px;
}

.hero-title .accent {
  background: var(--grad-warm);
  -webkit-background-clip: text;
  color: transparent;
  display: block;
  font-weight: 700;
}

.hero-subtitle {
  color: var(--muted);
  font-size: 16px;
  margin-bottom: 24px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-visual {
  position: relative;
  height: 320px;
  display: grid;
  place-items: center;
}

.stack {
  position: absolute;
  width: 220px;
  height: 32px;
  border-radius: 12px;
  background: linear-gradient(120deg, #ffd789 0%, #ff6f7d 100%);
  box-shadow: 0 10px 18px rgba(255, 132, 105, 0.26);
  transform: perspective(800px) rotateX(52deg) rotateZ(10deg);
  animation: float 6s ease-in-out infinite;
}

.stack:nth-child(2) {
  width: 250px;
  top: 48px;
  left: 0;
  opacity: 0.8;
  animation-delay: -1s;
}

.stack:nth-child(3) {
  width: 270px;
  top: 100px;
  right: -10px;
  opacity: 0.7;
  animation-delay: -2s;
}

.stack:nth-child(4) {
  width: 230px;
  top: 160px;
  left: 20px;
  opacity: 0.6;
  animation-delay: -3s;
}

.stack:nth-child(5) {
  width: 240px;
  top: 220px;
  right: 12px;
  opacity: 0.55;
  animation-delay: -4s;
}

@keyframes float {
  0%, 100% {
    transform: perspective(800px) rotateX(52deg) rotateZ(10deg) translateY(0);
  }
  50% {
    transform: perspective(800px) rotateX(48deg) rotateZ(10deg) translateY(-12px);
  }
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  align-items: center;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: var(--card);
  border-radius: 14px;
  padding: 24px;
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.05);
  border: 1px solid var(--line);
}

.card h3 {
  font-size: 16px;
  margin-bottom: 8px;
}

.card p {
  color: var(--muted);
  font-size: 13px;
}

.stats {
  display: flex;
  gap: 32px;
  margin-top: 20px;
}

.stat strong {
  display: block;
  color: #ff7c5c;
  font-size: 22px;
}

.vision-section {
  background: var(--soft);
}

.timeline {
  position: relative;
  width: min(800px, 92vw);
  margin: 30px auto 0;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background: #ffd6bf;
  transform: translateX(-50%);
}

.timeline-item {
  position: relative;
  width: 50%;
  padding: 14px 0;
}

.timeline-item:nth-child(even) {
  margin-left: 50%;
}

.timeline-card {
  background: #fff;
  border-radius: 12px;
  padding: 16px 20px;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.05);
}

.timeline-card strong {
  display: block;
  color: #ff7c5c;
  font-size: 14px;
  margin-bottom: 4px;
}

.timeline-dot {
  position: absolute;
  top: 22px;
  right: -10px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid #ffae8a;
}

.timeline-item:nth-child(even) .timeline-dot {
  left: -10px;
  right: auto;
}

.cta-card {
  max-width: 760px;
  margin: 0 auto;
  padding: 36px 28px;
  text-align: center;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.08);
}

.cta-card p {
  color: var(--muted);
  font-size: 13px;
  margin: 8px 0 20px;
}

.soft-panel {
  background: var(--soft);
}

.icon-chip {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--grad-warm);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  margin-bottom: 10px;
}

.case-card img {
  border-radius: 12px;
  margin-bottom: 14px;
}

.case-meta {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: #ff7c5c;
  margin-top: 12px;
}

.review-card {
  min-height: 150px;
}

.review-card .stars {
  color: #ff9a5a;
  font-size: 14px;
  letter-spacing: 2px;
}

.contact-hero {
  padding: 80px 0;
  background: var(--grad-soft);
  border-radius: 18px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.qr-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.qr-block {
  aspect-ratio: 1 / 1;
  border-radius: 12px;
  background: repeating-linear-gradient(45deg, #f9d1dd, #f9d1dd 6px, #fff 6px, #fff 12px);
  display: grid;
  place-items: center;
  color: #ff7c5c;
  font-weight: 700;
}

.map-placeholder {
    border-radius: 16px;
    background: #eef2f7;
    border: 1px solid var(--line);
    height: 220px;
    display: grid;
    place-items: center;
    color: #9aa0a6;
    font-size: 14px;
  
}

.feature-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--grad-warm);
  color: #fff;
  padding: 16px 24px;
  border-radius: 14px;
  margin: 30px 0;
}

.feature-strip div {
  text-align: center;
  font-size: 13px;
}

.packages {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.package-card {
  background: linear-gradient(180deg, #fff8f2 0%, #fef1ec 100%);
  border-radius: 18px;
  padding: 20px;
  border: 1px solid #ffe0d1;
}

.package-card h3 {
  margin-bottom: 6px;
}

.package-card .price {
  font-size: 22px;
  color: #ff7c5c;
  font-weight: 700;
  margin: 12px 0;
}

.download-banner {
  padding: 50px 24px;
  border-radius: 18px;
  background: var(--grad-warm);
  color: #fff;
  text-align: center;
}

.download-card {

  margin-top: 18px;
  padding: 18px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.18);
}

details {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 10px;
}

details summary {
  cursor: pointer;
  font-weight: 600;
}

.site-footer {
  background: #12141a;
  color: #b8bcc4;
  padding: 50px 0 30px;
  font-size: 13px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 24px;
}

.site-footer h4 {
  color: #fff;
  margin-bottom: 10px;
  font-size: 15px;
}

.site-footer ul {
  list-style: none;
  display: grid;
  gap: 8px;
}

.site-footer small {
  display: block;
  text-align: center;
  color: #6f7279;
}

.support {
  position: fixed;
  right: 24px;
  bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 50;
}

.support-bubble {
  background: #fff;
  padding: 8px 12px;
  border-radius: 16px;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.12);
  font-size: 12px;
  color: #ff7c5c;
}

.support-avatar {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--grad-warm);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  box-shadow: 0 8px 18px rgba(255, 134, 117, 0.3);
}

@media (max-width: 980px) {
  .hero-grid,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .grid-3,
  .contact-grid,
  .qr-grid,
  .packages {
    grid-template-columns: 1fr;
  }

  .feature-strip {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .timeline::before {
    left: 20px;
  }

  .timeline-item,
  .timeline-item:nth-child(even) {
    width: 100%;
    margin-left: 0;
    padding-left: 40px;
  }

  .timeline-dot {
    left: 14px;
    right: auto;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }


  
    
}