/* ===== 蔡姐说房 - Design System ===== */

:root {
  /* Primary - Teal (professional, trustworthy) */
  --primary: #0D9488;
  --primary-dark: #0F766E;
  --primary-light: #CCFBF1;
  --primary-bg: #F0FDFA;

  /* Accent - Coral (warmth, approachability) */
  --accent: #F97316;
  --accent-dark: #EA580C;
  --accent-light: #FED7AA;
  --accent-bg: #FFF7ED;

  /* Neutrals */
  --white: #FFFFFF;
  --bg: #FFFFFF;
  --bg-soft: #F8FAFC;
  --bg-card: #FFFFFF;
  --text: #1E293B;
  --text-muted: #64748B;
  --text-light: #94A3B8;
  --border: #E2E8F0;
  --border-light: #F1F5F9;

  /* Typography */
  --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-serif: 'Noto Serif SC', Georgia, serif;

  /* Spacing */
  --container: 1200px;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
  --shadow-teal: 0 8px 30px rgba(13, 148, 136, 0.15);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Reset ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }

/* ===== Container ===== */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-light);
  transition: var(--transition);
}
.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary-dark);
}
.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.1rem;
  font-weight: 700;
  box-shadow: var(--shadow-teal);
}
.logo-text { letter-spacing: 0.5px; }
.logo-text small {
  display: block;
  font-size: 0.65rem;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 2px;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-menu a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  position: relative;
  transition: var(--transition);
  padding: 6px 0;
}
.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: var(--transition);
}
.nav-menu a:hover, .nav-menu a.active {
  color: var(--primary);
}
.nav-menu a:hover::after, .nav-menu a.active::after {
  width: 100%;
}
.nav-cta {
  background: var(--primary);
  color: white !important;
  padding: 8px 20px !important;
  border-radius: var(--radius-sm);
  font-size: 0.9rem !important;
  transition: var(--transition);
}
.nav-cta::after { display: none !important; }
.nav-cta:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-teal);
}
.mobile-toggle {
  display: none;
  font-size: 1.5rem;
  color: var(--text);
  cursor: pointer;
  background: none;
  border: none;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 68px;
  overflow: hidden;
  background: linear-gradient(170deg, var(--primary-bg) 0%, var(--white) 60%);
}
.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(13, 148, 136, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -150px;
  left: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(249, 115, 22, 0.06) 0%, transparent 70%);
  border-radius: 50%;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-light);
  color: var(--primary-dark);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 24px;
}
.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}
.hero h1 {
  font-size: 3.2rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 20px;
  color: var(--text);
  letter-spacing: -1px;
}
.hero h1 .highlight {
  color: var(--primary);
  position: relative;
}
.hero h1 .highlight::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0;
  width: 100%;
  height: 8px;
  background: var(--accent-light);
  z-index: -1;
  border-radius: 4px;
}
.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 36px;
  max-width: 520px;
  line-height: 1.9;
}
.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
}
.hero-stats {
  display: flex;
  gap: 40px;
}
.hero-stat {
  text-align: left;
}
.hero-stat .num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary-dark);
  line-height: 1;
}
.hero-stat .label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Hero Visual */
.hero-visual {
  position: relative;
}
.hero-card-main {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-lg);
  position: relative;
  z-index: 2;
}
.hero-card-main .avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 16px;
  box-shadow: var(--shadow-teal);
}
.hero-card-main h3 {
  font-size: 1.3rem;
  margin-bottom: 6px;
}
.hero-card-main .title-tag {
  color: var(--primary);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 16px;
}
.hero-card-main p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
}
.hero-card-float {
  position: absolute;
  background: var(--white);
  border-radius: var(--radius);
  padding: 16px 20px;
  box-shadow: var(--shadow);
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 12px;
}
.hero-card-float.top {
  top: -20px;
  right: -30px;
}
.hero-card-float.bottom {
  bottom: -20px;
  left: -30px;
}
.hero-card-float .icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}
.hero-card-float .icon.teal {
  background: var(--primary-light);
  color: var(--primary-dark);
}
.hero-card-float .icon.coral {
  background: var(--accent-light);
  color: var(--accent-dark);
}
.hero-card-float .text {
  font-size: 0.8rem;
}
.hero-card-float .text strong {
  display: block;
  font-size: 1rem;
  color: var(--text);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-family: inherit;
}
.btn-primary {
  background: var(--primary);
  color: white;
}
.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-teal);
}
.btn-outline {
  background: transparent;
  color: var(--primary-dark);
  border: 2px solid var(--primary-light);
}
.btn-outline:hover {
  background: var(--primary-bg);
  border-color: var(--primary);
}
.btn-accent {
  background: var(--accent);
  color: white;
}
.btn-accent:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(249, 115, 22, 0.3);
}
.btn-lg { padding: 14px 36px; font-size: 1rem; }

/* ===== Section ===== */
.section {
  padding: 80px 0;
}
.section-soft { background: var(--bg-soft); }
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-header .eyebrow {
  display: inline-block;
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-header h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}
.section-header p {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== Services Grid ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.service-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px 28px;
  border: 1px solid var(--border-light);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}
.service-card:hover {
  border-color: var(--primary-light);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}
.service-card:hover::before { transform: scaleX(1); }
.service-card .icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: var(--radius);
  background: var(--primary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
  transition: var(--transition);
}
.service-card:hover .icon-wrap {
  background: var(--primary);
  transform: scale(1.1);
}
.service-card:nth-child(2) .icon-wrap { background: var(--accent-bg); }
.service-card:nth-child(2):hover .icon-wrap { background: var(--accent); }
.service-card:nth-child(3) .icon-wrap { background: var(--primary-bg); }
.service-card h3 {
  font-size: 1.25rem;
  margin-bottom: 10px;
}
.service-card p {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.7;
}
.service-card .tag {
  display: inline-block;
  margin-top: 16px;
  font-size: 0.8rem;
  color: var(--primary);
  font-weight: 500;
}

/* ===== Article Cards ===== */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.article-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border-light);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.article-card:hover {
  border-color: var(--primary-light);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.article-card .thumb {
  height: 200px;
  background: linear-gradient(135deg, var(--primary-bg), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  position: relative;
  overflow: hidden;
}
.article-card .thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(13,148,136,0.05), rgba(249,115,22,0.05));
}
.article-card:nth-child(2) .thumb { background: linear-gradient(135deg, var(--accent-bg), var(--accent-light)); }
.article-card:nth-child(3) .thumb { background: linear-gradient(135deg, #EEF2FF, #E0E7FF); }
.article-card .body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.article-card .category {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-bg);
  padding: 3px 10px;
  border-radius: 50px;
  margin-bottom: 12px;
  align-self: flex-start;
}
.article-card:nth-child(2) .category { color: var(--accent-dark); background: var(--accent-bg); }
.article-card h3 {
  font-size: 1.1rem;
  margin-bottom: 10px;
  line-height: 1.5;
  color: var(--text);
  transition: var(--transition);
}
.article-card:hover h3 { color: var(--primary); }
.article-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
  flex: 1;
}
.article-card .meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
  font-size: 0.8rem;
  color: var(--text-light);
}
.article-card .meta .read-more {
  color: var(--primary);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}
.article-card:hover .meta .read-more { gap: 8px; }

/* ===== About Preview ===== */
.about-preview {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 60px;
  align-items: center;
}
.about-visual {
  position: relative;
}
.about-avatar {
  width: 100%;
  aspect-ratio: 4/5;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--primary-bg), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 6rem;
  color: var(--primary);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}
.about-avatar::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13,148,136,0.1), transparent);
}
.about-experience-badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--accent);
  color: white;
  border-radius: var(--radius);
  padding: 20px 24px;
  text-align: center;
  box-shadow: 0 8px 24px rgba(249, 115, 22, 0.3);
}
.about-experience-badge .num {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1;
}
.about-experience-badge .text {
  font-size: 0.8rem;
  margin-top: 4px;
}
.about-content h2 {
  font-size: 2rem;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}
.about-content .lead {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  line-height: 1.9;
}
.about-content p {
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.9;
}
.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 28px;
}
.about-feature {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  font-weight: 500;
}
.about-feature .check {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  flex-shrink: 0;
}

/* ===== CTA Section ===== */
.cta-section {
  position: relative;
  overflow: hidden;
}
.cta-box {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  border-radius: var(--radius-lg);
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -50px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255,255,255,0.1), transparent);
  border-radius: 50%;
}
.cta-box::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -80px;
  width: 250px;
  height: 250px;
  background: radial-gradient(circle, rgba(249,115,22,0.15), transparent);
  border-radius: 50%;
}
.cta-box h2 {
  font-size: 2rem;
  color: white;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}
.cta-box p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.05rem;
  margin-bottom: 32px;
  position: relative;
  z-index: 1;
}
.cta-box .btn {
  position: relative;
  z-index: 1;
}

/* ===== Footer ===== */
.site-footer {
  background: #0F172A;
  color: #94A3B8;
  padding: 64px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand .logo {
  color: white;
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 20px;
}
.footer-col h4 {
  color: white;
  font-size: 1rem;
  margin-bottom: 20px;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul li a {
  font-size: 0.88rem;
  transition: var(--transition);
}
.footer-col ul li a:hover {
  color: var(--primary-light);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.82rem;
}

/* ===== Page Hero (inner pages) ===== */
.page-hero {
  padding: 120px 0 60px;
  background: linear-gradient(170deg, var(--primary-bg), var(--white));
  text-align: center;
}
.page-hero h1 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}
.page-hero p {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}
.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 16px;
  font-size: 0.85rem;
  color: var(--text-light);
}
.breadcrumb a:hover { color: var(--primary); }

/* ===== Blog Page ===== */
.blog-filter {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.filter-btn {
  padding: 8px 20px;
  border-radius: 50px;
  border: 1px solid var(--border);
  background: var(--white);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
  color: var(--text-muted);
}
.filter-btn:hover, .filter-btn.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* ===== Article Detail ===== */
.article-detail {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 48px;
  align-items: start;
}
.article-main {
  background: var(--white);
  border-radius: var(--radius);
  padding: 48px;
  border: 1px solid var(--border-light);
}
.article-main .article-header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-light);
}
.article-main .article-header .category {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-bg);
  padding: 4px 12px;
  border-radius: 50px;
  margin-bottom: 16px;
}
.article-main .article-header h1 {
  font-size: 2rem;
  line-height: 1.4;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}
.article-main .article-header .meta {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.article-main .article-body {
  font-size: 1.02rem;
  line-height: 2;
}
.article-main .article-body h2 {
  font-size: 1.5rem;
  margin: 36px 0 16px;
  padding-left: 16px;
  border-left: 4px solid var(--primary);
}
.article-main .article-body h3 {
  font-size: 1.2rem;
  margin: 28px 0 12px;
}
.article-main .article-body p {
  margin-bottom: 16px;
}
.article-main .article-body ul {
  list-style: none;
  margin-bottom: 16px;
  padding-left: 0;
}
.article-main .article-body ul li {
  padding-left: 28px;
  position: relative;
  margin-bottom: 10px;
}
.article-main .article-body ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 12px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
}
.article-main .article-body .callout {
  background: var(--primary-bg);
  border-left: 4px solid var(--primary);
  padding: 20px 24px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 24px 0;
}
.article-main .article-body .callout p {
  margin: 0;
  color: var(--primary-dark);
}
.article-main .article-body .callout strong {
  color: var(--primary-dark);
}
.article-main .article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
}
.article-main .article-body table th,
.article-main .article-body table td {
  padding: 12px 16px;
  border: 1px solid var(--border);
  text-align: left;
  font-size: 0.92rem;
}
.article-main .article-body table th {
  background: var(--primary-bg);
  color: var(--primary-dark);
  font-weight: 600;
}
.article-main .article-body table tr:nth-child(even) td {
  background: var(--bg-soft);
}

/* Article Sidebar */
.article-sidebar {
  position: sticky;
  top: 88px;
}
.sidebar-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border-light);
  margin-bottom: 20px;
}
.sidebar-card h4 {
  font-size: 1rem;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--primary-light);
}
.sidebar-article {
  display: block;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-light);
  transition: var(--transition);
}
.sidebar-article:last-child { border-bottom: none; }
.sidebar-article:hover h5 { color: var(--primary); }
.sidebar-article h5 {
  font-size: 0.9rem;
  line-height: 1.5;
  margin-bottom: 4px;
  transition: var(--transition);
}
.sidebar-article .date {
  font-size: 0.75rem;
  color: var(--text-light);
}
.sidebar-cta {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  border-radius: var(--radius);
  padding: 28px;
  text-align: center;
  color: white;
}
.sidebar-cta h4 {
  color: white;
  border: none;
  margin-bottom: 8px;
}
.sidebar-cta p {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.85);
  margin-bottom: 16px;
}
.sidebar-cta .btn {
  background: white;
  color: var(--primary-dark);
  font-size: 0.88rem;
  padding: 10px 24px;
}

/* Author Box */
.author-box {
  display: flex;
  gap: 20px;
  align-items: center;
  background: var(--bg-soft);
  border-radius: var(--radius);
  padding: 24px;
  margin-top: 40px;
}
.author-box .avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.6rem;
  font-weight: 700;
  flex-shrink: 0;
}
.author-box .info h4 {
  font-size: 1.1rem;
  margin-bottom: 4px;
}
.author-box .info p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ===== Contact Page ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.contact-info-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px;
  border: 1px solid var(--border-light);
}
.contact-method {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-light);
}
.contact-method:last-child { border-bottom: none; }
.contact-method .icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--primary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}
.contact-method .info h4 {
  font-size: 0.95rem;
  margin-bottom: 2px;
}
.contact-method .info p {
  font-size: 0.88rem;
  color: var(--text-muted);
}
.contact-form-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px;
  border: 1px solid var(--border-light);
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 8px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  transition: var(--transition);
  background: var(--bg-soft);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--white);
  box-shadow: 0 0 0 3px var(--primary-light);
}
.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* ===== Animations ===== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 968px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero h1 { font-size: 2.2rem; }
  .hero-visual { max-width: 400px; margin: 0 auto; }
  .services-grid { grid-template-columns: 1fr; }
  .articles-grid { grid-template-columns: 1fr; }
  .about-preview { grid-template-columns: 1fr; gap: 40px; }
  .about-visual { max-width: 360px; margin: 0 auto; }
  .article-detail { grid-template-columns: 1fr; }
  .article-sidebar { position: static; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .nav-menu { display: none; }
  .mobile-toggle { display: block; }
  .nav-menu.open {
    display: flex;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: 20px;
    box-shadow: var(--shadow);
    gap: 16px;
  }
  .hero-stats { gap: 24px; }
  .hero-stat .num { font-size: 1.5rem; }
  .section { padding: 56px 0; }
  .section-header h2 { font-size: 1.7rem; }
  .article-main { padding: 28px; }
  .article-main .article-header h1 { font-size: 1.5rem; }
  .cta-box { padding: 40px 24px; }
  .cta-box h2 { font-size: 1.5rem; }
  .page-hero h1 { font-size: 1.8rem; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.8rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .hero-stats { flex-wrap: wrap; gap: 20px; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; }
  .about-features { grid-template-columns: 1fr; }
}