:root {
  --navy: #1D3557;
  --navy-light: #2A4A6F;
  --orange: #F4A261;
  --orange-dark: #E07B39;
  --cream: #FDF6EC;
  --cream-dark: #F5EBDA;
  --white: #FFFFFF;
  --text: #2D3748;
  --text-light: #718096;
  --success: #38A169;
  --shadow-sm: 0 2px 8px rgba(29, 53, 87, 0.06);
  --shadow: 0 8px 24px rgba(29, 53, 87, 0.08);
  --shadow-lg: 0 20px 40px rgba(29, 53, 87, 0.12);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--cream);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* NAVBAR */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  background: rgba(253, 246, 236, 0.92);
  backdrop-filter: blur(12px);
  z-index: 100;
  border-bottom: 1px solid rgba(29, 53, 87, 0.06);
}

.navbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 68px;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--navy);
  font-size: 17px;
}

.navbar-brand img {
  width: 38px; height: 38px;
  border-radius: 50%;
  object-fit: cover;
}

.navbar-cta {
  background: var(--orange-dark);
  color: white;
  padding: 9px 20px;
  border-radius: 30px;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.25s;
}

.navbar-cta:hover {
  background: var(--orange);
  transform: translateY(-1px);
}

/* PAGE HERO */
.page-hero {
  padding: 140px 0 80px;
  background: var(--navy);
  color: white;
  text-align: center;
}

.page-hero h1 {
  font-size: 44px;
  font-weight: 800;
  margin: 20px 0 16px;
}

.page-desc {
  font-size: 20px;
  color: rgba(255,255,255,0.75);
  max-width: 600px;
  margin: 0 auto;
}

/* SECTION */
.section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  max-width: 620px;
  margin: 0 auto 60px;
}

.section-tag {
  display: inline-block;
  background: rgba(240, 126, 57, 0.1);
  color: var(--orange-dark);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: 14px;
}

.section-title {
  font-size: 38px;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 16px;
  line-height: 1.2;
}

.section-subtitle {
  font-size: 18px;
  color: var(--text-light);
  line-height: 1.7;
}

/* SERVICE GRID */
.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.service-card {
  background: var(--white);
  border-radius: 24px;
  padding: 36px;
  display: flex;
  gap: 24px;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s;
  border: 1px solid var(--cream-dark);
}

.service-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.service-icon {
  width: 64px; height: 64px;
  background: linear-gradient(135deg, var(--orange) 0%, var(--orange-dark) 100%);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  flex-shrink: 0;
  color: white;
}

.service-content h3 {
  font-size: 22px;
  color: var(--navy);
  margin-bottom: 10px;
}

.service-content h3 a {
  color: var(--navy);
  border-bottom: 2px solid var(--orange);
}

.service-content p {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.7;
}

/* PRICING */
.price-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: start;
}

.price-card {
  background: var(--white);
  border-radius: 28px;
  padding: 40px 32px;
  position: relative;
  transition: all 0.3s;
  border: 2px solid transparent;
}

.price-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.price-card.featured {
  background: var(--navy);
  color: white;
  transform: scale(1.05);
  border-color: var(--orange);
}

.price-card.featured h3, .price-card.featured .price,
.price-card.featured .price-desc, .price-card.featured .price-features li {
  color: white;
}

.price-recommend {
  position: absolute;
  top: -14px; left: 50%;
  transform: translateX(-50%);
  background: var(--orange);
  color: white;
  padding: 6px 18px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 700;
}

.price-card h3 {
  font-size: 18px;
  color: var(--text-light);
  margin-bottom: 12px;
}

.price {
  font-size: 48px;
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 8px;
}

.price span { font-size: 16px; font-weight: 500; opacity: 0.7; }

.price-desc {
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(29, 53, 87, 0.08);
}

.price-features {
  list-style: none;
  margin-bottom: 32px;
}

.price-features li {
  padding: 10px 0 10px 28px;
  font-size: 15px;
  position: relative;
}

.price-features li::before {
  content: "✓";
  position: absolute;
  left: 0; top: 8px;
  width: 20px; height: 20px;
  background: rgba(56, 161, 105, 0.1);
  color: var(--success);
  border-radius: 50%;
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
}

.price-btn {
  display: block; width: 100%;
  padding: 14px;
  border-radius: 12px;
  text-align: center;
  font-weight: 700;
  font-size: 15px;
  border: 2px solid var(--navy);
  color: var(--navy);
}

.price-btn:hover { background: var(--navy); color: white; }

.price-card.featured .price-btn {
  background: var(--orange); border-color: var(--orange); color: white;
}

/* ARTICLE */
.article-section { background: var(--white); }

.article-content {
  max-width: 760px;
  margin: 0 auto;
}

.article-content .lead {
  font-size: 20px;
  color: var(--text-light);
  line-height: 1.8;
  margin-bottom: 40px;
}

.article-content h2 {
  font-size: 28px;
  color: var(--navy);
  margin: 48px 0 20px;
}

.article-content h3 {
  font-size: 22px;
  color: var(--navy);
  margin: 32px 0 16px;
}

.article-content p, .article-content li {
  font-size: 17px;
  color: var(--text);
  line-height: 1.9;
  margin-bottom: 16px;
}

.article-content ul, .article-content ol {
  margin-left: 24px;
  margin-bottom: 24px;
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
}

.article-content th, .article-content td {
  border: 1px solid var(--cream-dark);
  padding: 14px;
  text-align: left;
  font-size: 15px;
}

.article-content th {
  background: var(--navy);
  color: white;
}

.formula-box {
  background: var(--cream);
  border-left: 4px solid var(--orange);
  padding: 24px;
  border-radius: 0 12px 12px 0;
  margin: 24px 0;
}

.cta-box {
  background: var(--navy);
  color: white;
  padding: 40px;
  border-radius: 24px;
  text-align: center;
  margin: 48px 0;
}

.cta-box h3 { font-size: 24px; margin-bottom: 12px; }
.cta-box p { color: rgba(255,255,255,0.8); margin-bottom: 24px; }

.btn-primary {
  background: var(--orange);
  color: white;
  padding: 16px 32px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  display: inline-block;
  transition: all 0.25s;
}

.btn-primary:hover { background: var(--orange-dark); transform: translateY(-2px); }

/* ABOUT */
.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  align-items: start;
}

.about-image { position: relative; }

.about-image img {
  width: 100%;
  border-radius: 32px;
  box-shadow: var(--shadow-lg);
  position: relative;
  z-index: 2;
}

.about-image-decor {
  position: absolute;
  inset: -20px;
  border: 3px solid var(--orange);
  border-radius: 44px;
  z-index: 1;
  opacity: 0.5;
}

.about-content h2 {
  font-size: 32px;
  color: var(--navy);
  margin-bottom: 20px;
}

.about-content p {
  font-size: 17px;
  color: var(--text-light);
  margin-bottom: 20px;
  line-height: 1.8;
}

.about-quote {
  margin-top: 36px;
  padding: 24px;
  background: var(--navy);
  color: white;
  border-radius: 20px;
  font-size: 16px;
  line-height: 1.9;
}

.timeline {
  list-style: none;
  margin-top: 24px;
}

.timeline li {
  padding: 14px 0;
  border-bottom: 1px solid var(--cream-dark);
  font-size: 16px;
}

.timeline li strong {
  color: var(--navy);
  display: inline-block;
  min-width: 120px;
}

/* CONTACT */
.contact-section {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.contact-text h2 {
  font-size: 38px;
  color: white;
  font-weight: 800;
  margin-bottom: 20px;
}

.contact-text > p {
  font-size: 18px;
  color: rgba(255,255,255,0.75);
  margin-bottom: 32px;
}

.contact-btn-main {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--orange);
  color: white;
  padding: 18px 36px;
  border-radius: 14px;
  font-size: 17px;
  font-weight: 700;
}

.contact-btn-main:hover { background: var(--orange-dark); }

.contact-qr {
  background: white;
  padding: 28px;
  border-radius: 28px;
  text-align: center;
}

.contact-qr img {
  width: 240px; height: 240px;
  border-radius: 16px;
  margin: 0 auto 16px;
}

.contact-qr p { color: var(--text-light); font-size: 15px; }

/* FOOTER */
footer {
  background: var(--navy);
  color: rgba(255,255,255,0.5);
  text-align: center;
  padding: 30px 0;
  font-size: 14px;
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .page-hero h1 { font-size: 34px; }
  .service-grid { grid-template-columns: 1fr; }
  .price-grid { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; text-align: center; }
}

@media (max-width: 600px) {
  .page-hero h1 { font-size: 28px; }
  .section { padding: 70px 0; }
  .section-title { font-size: 28px; }
  .service-card { flex-direction: column; text-align: center; }
  .service-icon { margin: 0 auto; }
}