/* ===== Design System 2025 ===== */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #60a5fa;
  --accent: #0ea5e9;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --dark: #0f172a;
  --dark-2: #1e293b;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  --white: #ffffff;
  --radius-sm: 8px;
  --radius: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --shadow-sm: 0 1px 2px rgba(15,23,42,0.04);
  --shadow: 0 4px 6px -1px rgba(15,23,42,0.06), 0 2px 4px -2px rgba(15,23,42,0.04);
  --shadow-md: 0 10px 15px -3px rgba(15,23,42,0.08), 0 4px 6px -4px rgba(15,23,42,0.04);
  --shadow-lg: 0 20px 25px -5px rgba(15,23,42,0.08), 0 8px 10px -6px rgba(15,23,42,0.04);
  --shadow-glow: 0 0 40px rgba(37,99,235,0.15);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
}

/* ===== Reset & Base ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
button { border: none; background: none; cursor: pointer; font-family: inherit; }
img { max-width: 100%; display: block; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== Scroll Reveal Animation ===== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ===== Navigation ===== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 18px 0; transition: var(--transition); background: transparent;
}
.navbar.scrolled {
  background: rgba(255,255,255,0.85); backdrop-filter: blur(20px) saturate(180%);
  box-shadow: var(--shadow-sm); padding: 14px 0;
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 12px; font-weight: 800; font-size: 19px; color: var(--gray-900); letter-spacing: -0.02em; }
.logo-img { width: 42px; height: 42px; border-radius: 10px; object-fit: contain; }
.nav-links { display: flex; gap: 32px; list-style: none; align-items: center; }
.nav-links a {
  font-size: 15px; color: var(--gray-600); font-weight: 500;
  transition: var(--transition); position: relative; padding: 4px 0;
}
.nav-links a:hover { color: var(--primary); }
.nav-links a::after {
  content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent)); border-radius: 2px;
  transition: width 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
.nav-links a:hover::after { width: 100%; }
.btn-nav {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
  color: #fff !important; padding: 10px 22px !important;
  border-radius: 100px !important; font-size: 14px !important; font-weight: 600 !important;
  box-shadow: 0 4px 14px rgba(37,99,235,0.3) !important;
  transition: var(--transition) !important;
}
.btn-nav:hover {
  transform: translateY(-2px) !important;
  box-shadow: 0 8px 24px rgba(37,99,235,0.4) !important;
}
.btn-nav::after { display: none !important; }
.menu-toggle { display: none; flex-direction: column; gap: 5px; padding: 5px; }
.menu-toggle span { display: block; width: 24px; height: 2.5px; background: var(--gray-900); transition: var(--transition); border-radius: 2px; }

/* ===== Hero ===== */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center; justify-content: center;
  overflow: hidden; padding-top: 80px;
  background: radial-gradient(ellipse 80% 50% at 50% -20%, rgba(37,99,235,0.12), transparent),
              linear-gradient(180deg, var(--gray-50) 0%, var(--white) 50%);
}
.hero-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.gradient-orb {
  position: absolute; border-radius: 50%;
  filter: blur(100px); opacity: 0.4;
  animation: orbFloat 8s ease-in-out infinite;
}
@keyframes orbFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-30px) scale(1.05); }
}
.orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(37,99,235,0.35), transparent 70%);
  top: -150px; right: -150px; animation-delay: 0s;
}
.orb-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(14,165,233,0.25), transparent 70%);
  bottom: -100px; left: -100px; animation-delay: -4s;
}
.orb-3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(16,185,129,0.15), transparent 70%);
  top: 40%; left: 30%; animation-delay: -2s;
}
/* Grid pattern overlay */
.hero-bg::before {
  content: ''; position: absolute; inset: 0;
  background-image: radial-gradient(circle at 1px 1px, var(--gray-300) 1px, transparent 0);
  background-size: 40px 40px; opacity: 0.25;
}
.hero-content { position: relative; z-index: 1; text-align: center; max-width: 840px; }
.badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(37,99,235,0.08); color: var(--primary);
  padding: 10px 20px; border-radius: 100px; font-size: 14px; font-weight: 600;
  margin-bottom: 28px; border: 1px solid rgba(37,99,235,0.12);
  backdrop-filter: blur(10px);
}
.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(0.85);} }
.hero h1 {
  font-size: 64px; font-weight: 900; line-height: 1.1; color: var(--gray-900);
  margin-bottom: 24px; letter-spacing: -0.03em;
}
.hero h1 .highlight {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  position: relative;
}
.hero-subtitle {
  font-size: 21px; color: var(--gray-500); margin-bottom: 36px;
  line-height: 1.7; font-weight: 400;
}
.hero-tags { display: flex; justify-content: center; gap: 14px; margin-bottom: 44px; flex-wrap: wrap; }
.tag {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--white); border: 1.5px solid var(--gray-200);
  padding: 10px 20px; border-radius: 100px; font-size: 14px;
  color: var(--gray-700); font-weight: 600;
  box-shadow: var(--shadow-sm); transition: var(--transition);
}
.tag:hover { border-color: var(--primary-light); box-shadow: var(--shadow); transform: translateY(-1px); }
.tag i { color: var(--success); font-style: normal; }
.hero-cta { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.btn-primary {
  display: inline-block;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff; padding: 16px 40px; border-radius: 100px;
  font-size: 16px; font-weight: 700;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(37,99,235,0.35), 0 0 0 0 rgba(37,99,235,0.4);
  position: relative; overflow: hidden;
}
.btn-primary::before {
  content: ''; position: absolute; top: 0; left: -100%; width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.6s;
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(37,99,235,0.45), 0 0 0 4px rgba(37,99,235,0.1);
}
.btn-primary:hover::before { left: 100%; }
.btn-secondary {
  display: inline-block; background: var(--white); color: var(--primary);
  padding: 16px 40px; border-radius: 100px; font-size: 16px; font-weight: 700;
  border: 2px solid var(--primary); transition: var(--transition);
}
.btn-secondary:hover { background: var(--gray-50); box-shadow: var(--shadow-md); transform: translateY(-2px); }

/* ===== Section Headers ===== */
.section-header { text-align: center; margin-bottom: 64px; }
.section-tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 18px; border-radius: 100px; font-size: 13px; font-weight: 700;
  margin-bottom: 18px; letter-spacing: 0.02em; text-transform: uppercase;
}
.section-header h2 { font-size: 42px; font-weight: 900; color: var(--gray-900); margin-bottom: 16px; letter-spacing: -0.02em; line-height: 1.2; }
.section-desc { font-size: 19px; color: var(--gray-500); max-width: 560px; margin: 0 auto; line-height: 1.6; }

/* ===== SaaS Promo ===== */
.saas-promo { padding: 120px 0; background: var(--white); position: relative; }
.saas-promo .section-tag { background: rgba(37,99,235,0.08); color: var(--primary); border: 1px solid rgba(37,99,235,0.1); }
.saas-promo::before {
  content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 200px; height: 1px; background: linear-gradient(90deg, transparent, var(--gray-300), transparent);
}
.saas-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 56px; }
.saas-feature {
  background: var(--white); border-radius: var(--radius-lg); padding: 36px;
  border: 1px solid var(--gray-200);
  transition: var(--transition);
  position: relative; overflow: hidden;
}
.saas-feature::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent)); opacity: 0;
  transition: opacity 0.3s;
}
.saas-feature:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  border-color: rgba(37,99,235,0.15);
}
.saas-feature:hover::before { opacity: 1; }
.feature-icon {
  width: 56px; height: 56px; border-radius: var(--radius);
  background: linear-gradient(135deg, rgba(37,99,235,0.08), rgba(14,165,233,0.08));
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; color: var(--primary);
  font-size: 28px; border: 1px solid rgba(37,99,235,0.1);
}
.saas-feature h3 { font-size: 20px; font-weight: 800; color: var(--gray-900); margin-bottom: 10px; }
.saas-feature p { font-size: 15px; color: var(--gray-500); line-height: 1.7; }
.saas-cta { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* ===== Painpoint ===== */
.painpoint { padding: 120px 0; background: linear-gradient(180deg, var(--gray-50), var(--white)); position: relative; }
.painpoint .section-tag { background: rgba(239,68,68,0.08); color: var(--danger); border: 1px solid rgba(239,68,68,0.1); }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: var(--white); border-radius: var(--radius-lg); padding: 36px;
  border: 1px solid var(--gray-200); transition: var(--transition); position: relative;
  box-shadow: var(--shadow-sm);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.card.good {
  background: linear-gradient(135deg, rgba(37,99,235,0.03), var(--white));
  border-color: rgba(37,99,235,0.2);
}
.card-icon {
  width: 52px; height: 52px; border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px; font-size: 26px;
}
.card.bad .card-icon { background: rgba(239,68,68,0.08); color: var(--danger); }
.card.good .card-icon { background: rgba(37,99,235,0.08); color: var(--primary); }
.card h3 { font-size: 20px; font-weight: 800; color: var(--gray-900); margin-bottom: 16px; }
.card ul { list-style: none; }
.card li { font-size: 15px; color: var(--gray-500); padding: 8px 0; border-bottom: 1px dashed var(--gray-200); position: relative; padding-left: 20px; }
.card li::before { content: ''; position: absolute; left: 0; top: 16px; width: 6px; height: 6px; background: var(--gray-300); border-radius: 50%; }
.card li:last-child { border-bottom: none; }
.card.good li { color: var(--gray-700); }
.card.good li::before { background: var(--primary); }
.card-badge {
  position: absolute; top: -12px; right: 24px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff; padding: 8px 18px; border-radius: 100px;
  font-size: 12px; font-weight: 800; letter-spacing: 0.05em;
  box-shadow: var(--shadow-md);
}

/* ===== Services ===== */
.services { padding: 120px 0; background: var(--white); position: relative; }
.services .section-tag { background: rgba(37,99,235,0.08); color: var(--primary); border: 1px solid rgba(37,99,235,0.1); }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card {
  background: var(--white); border-radius: var(--radius-lg); padding: 44px 36px;
  border: 1px solid var(--gray-200); transition: var(--transition);
  position: relative; overflow: hidden;
}
.service-card::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 0;
  background: linear-gradient(90deg, var(--primary), var(--accent)); opacity: 0.08;
  transition: height 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(37,99,235,0.15);
}
.service-card:hover::after { height: 4px; }
.service-icon {
  width: 68px; height: 68px; border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 28px; font-size: 32px;
  box-shadow: var(--shadow-sm);
}
.service-card h3 { font-size: 24px; font-weight: 800; color: var(--gray-900); margin-bottom: 14px; }
.service-card > p { font-size: 15px; color: var(--gray-500); line-height: 1.7; margin-bottom: 24px; }
.service-card ul { list-style: none; }
.service-card li { font-size: 14px; color: var(--gray-500); padding: 7px 0; padding-left: 20px; position: relative; }
.service-card li::before { content: ''; position: absolute; left: 0; top: 15px; width: 8px; height: 8px; background: var(--primary); border-radius: 50%; opacity: 0.6; }

/* ===== Trust / Steps ===== */
.trust { padding: 120px 0; background: linear-gradient(180deg, var(--gray-50), var(--white)); position: relative; }
.trust .section-tag { background: rgba(16,185,129,0.08); color: var(--success); border: 1px solid rgba(16,185,129,0.1); }
.steps { display: flex; align-items: flex-start; justify-content: center; gap: 16px; margin-bottom: 80px; flex-wrap: wrap; }
.step { flex: 1; min-width: 200px; max-width: 240px; text-align: center; padding: 28px; position: relative; }
.step-num {
  width: 64px; height: 64px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; font-weight: 900; margin: 0 auto 20px;
  box-shadow: 0 8px 24px rgba(37,99,235,0.3), 0 0 0 8px rgba(37,99,235,0.06);
  transition: var(--transition);
}
.step:hover .step-num { transform: scale(1.1); box-shadow: 0 12px 32px rgba(37,99,235,0.35), 0 0 0 12px rgba(37,99,235,0.08); }
.step h3 { font-size: 18px; font-weight: 800; color: var(--gray-900); margin-bottom: 10px; }
.step p { font-size: 14px; color: var(--gray-500); line-height: 1.6; }
.step-arrow { font-size: 28px; color: var(--gray-300); font-weight: 700; margin-top: 32px; transition: var(--transition); }
.step-arrow:hover { color: var(--primary); transform: translateX(4px); }
.trust-quotes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.quote {
  background: var(--white); border-left: 4px solid var(--primary);
  padding: 32px; border-radius: 0 var(--radius) var(--radius) 0;
  position: relative; margin: 0; box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.quote:hover { box-shadow: var(--shadow-md); transform: translateX(4px); }
.quote-mark { font-size: 56px; line-height: 1; color: var(--primary); font-family: Georgia, serif; margin-bottom: 8px; opacity: 0.2; }
.quote p { font-size: 17px; color: var(--gray-700); font-weight: 600; line-height: 1.6; }

/* ===== About ===== */
.about { padding: 120px 0; background: linear-gradient(180deg, var(--white), var(--gray-50)); position: relative; }
.about .section-tag { background: rgba(245,158,11,0.08); color: #d97706; border: 1px solid rgba(245,158,11,0.1); }
.about-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.about-content { max-width: 540px; }
.about-content h2 { font-size: 36px; font-weight: 900; color: var(--gray-900); margin-bottom: 24px; line-height: 1.2; letter-spacing: -0.02em; }
.about-content p { font-size: 17px; color: var(--gray-500); line-height: 1.8; margin-bottom: 20px; }
.values { display: flex; flex-direction: column; gap: 16px; margin-top: 32px; }
.value {
  display: flex; align-items: center; gap: 16px;
  background: var(--white); padding: 18px 24px;
  border-radius: var(--radius); border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm); transition: var(--transition);
}
.value:hover { box-shadow: var(--shadow-md); transform: translateX(4px); border-color: rgba(37,99,235,0.15); }
.value-icon { font-size: 28px; width: 48px; height: 48px; border-radius: 12px; background: linear-gradient(135deg, rgba(37,99,235,0.08), rgba(14,165,233,0.08)); display: flex; align-items: center; justify-content: center; color: var(--primary); }
.value div { display: flex; flex-direction: column; }
.value strong { font-size: 17px; color: var(--gray-900); font-weight: 800; }
.value span { font-size: 14px; color: var(--gray-500); }
.about-visual { display: flex; flex-direction: column; gap: 20px; }
.visual-card {
  background: var(--white); border-radius: var(--radius-lg); padding: 36px;
  text-align: center; border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm); transition: var(--transition);
  position: relative; overflow: hidden;
}
.visual-card:hover { transform: translateX(-8px); box-shadow: var(--shadow-md); }
.visual-card::before {
  content: ''; position: absolute; top: 0; left: 0; width: 4px; height: 100%;
  background: linear-gradient(180deg, var(--primary), var(--accent));
}
.visual-number {
  font-size: 48px; font-weight: 900;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  margin-bottom: 8px;
}
.visual-label { font-size: 17px; color: var(--gray-500); font-weight: 600; }

/* ===== Contact ===== */
.contact { padding: 120px 0; background: var(--white); position: relative; }
.contact .section-tag { background: rgba(37,99,235,0.08); color: var(--primary); border: 1px solid rgba(37,99,235,0.1); }
.contact-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.contact-info { max-width: 480px; }
.contact-info h2 { font-size: 42px; font-weight: 900; color: var(--gray-900); margin-bottom: 20px; letter-spacing: -0.02em; }
.contact-info > p { font-size: 17px; color: var(--gray-500); line-height: 1.8; margin-bottom: 36px; }
.contact-methods { display: flex; flex-direction: column; gap: 16px; }
.method {
  display: flex; align-items: center; gap: 16px;
  padding: 16px 0; border-bottom: 1px solid var(--gray-100);
  transition: var(--transition);
}
.method:hover { padding-left: 8px; }
.method-icon {
  font-size: 24px; width: 52px; height: 52px;
  background: linear-gradient(135deg, rgba(37,99,235,0.08), rgba(14,165,233,0.08));
  border-radius: 14px; display: flex; align-items: center; justify-content: center;
  color: var(--primary); border: 1px solid rgba(37,99,235,0.1);
}
.method div { display: flex; flex-direction: column; }
.method strong { font-size: 17px; color: var(--gray-900); font-weight: 700; }
.method span { font-size: 14px; color: var(--gray-500); }
.method a { color: var(--primary); font-weight: 600; }
.contact-card {
  background: linear-gradient(135deg, var(--gray-50), rgba(37,99,235,0.04));
  border-radius: var(--radius-xl); padding: 56px; text-align: center;
  border: 1px solid rgba(37,99,235,0.12); position: relative; overflow: hidden;
}
.contact-card::before {
  content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
  background: radial-gradient(circle, rgba(37,99,235,0.06), transparent 70%);
}
.qr-img { width: 200px; height: 200px; border-radius: var(--radius); object-fit: contain; margin: 0 auto; display: block; box-shadow: var(--shadow-lg); position: relative; z-index: 1; }
.qr-tip { font-size: 16px; color: var(--gray-600); margin-top: 24px; position: relative; z-index: 1; font-weight: 500; }

/* ===== Footer ===== */
.footer { background: var(--dark); color: var(--gray-400); padding: 64px 0 28px; position: relative; }
.footer::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
}
.footer-top { display: flex; justify-content: space-between; align-items: center; padding-bottom: 36px; border-bottom: 1px solid rgba(255,255,255,0.06); margin-bottom: 28px; flex-wrap: wrap; gap: 24px; }
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-brand .logo-img { width: 44px; height: 44px; border-radius: 12px; object-fit: contain; }
.footer-brand strong { display: block; color: var(--white); font-size: 17px; margin-bottom: 2px; font-weight: 800; }
.footer-brand span { font-size: 13px; color: var(--gray-500); }
.footer-links { display: flex; gap: 28px; flex-wrap: wrap; }
.footer-links a { font-size: 14px; color: var(--gray-400); transition: var(--transition); font-weight: 500; }
.footer-links a:hover { color: var(--white); }
.footer-bottom { text-align: center; }
.footer-bottom p { font-size: 13px; margin-bottom: 4px; color: var(--gray-500); }
.icp { color: var(--gray-600); font-size: 12px; }
.icp a { color: var(--gray-600); text-decoration: none; transition: var(--transition); }
.icp a:hover { color: var(--gray-400); }

/* ===== Breadcrumb ===== */
.breadcrumb { background: var(--gray-50); padding: 18px 0; border-bottom: 1px solid var(--gray-200); }
.breadcrumb ol { list-style: none; display: flex; gap: 10px; font-size: 14px; color: var(--gray-500); }
.breadcrumb ol li::after { content: '›'; margin-left: 10px; color: var(--gray-300); font-weight: 700; }
.breadcrumb ol li:last-child::after { content: ''; }
.breadcrumb a { color: var(--primary); font-weight: 600; }
.breadcrumb a:hover { text-decoration: underline; }

/* ===== SaaS Detail Page ===== */
.saas-detail { padding: 100px 0; background: var(--white); }
.saas-detail .section-tag { background: rgba(37,99,235,0.08); color: var(--primary); border: 1px solid rgba(37,99,235,0.1); }

/* ===== Stats Banner ===== */
.stats { padding: 80px 0; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; position: relative; overflow: hidden; }
.stats::before {
  content: ''; position: absolute; inset: 0;
  background-image: radial-gradient(circle at 2px 2px, rgba(255,255,255,0.08) 1px, transparent 0);
  background-size: 32px 32px;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; position: relative; z-index: 1; }
.stat-item { padding: 20px; }
.stat-number { font-size: 48px; font-weight: 900; margin-bottom: 8px; letter-spacing: -0.02em; }
.stat-label { font-size: 16px; opacity: 0.85; font-weight: 500; }

/* ===== Scenario Cards ===== */
.saas-scenarios { padding: 100px 0; background: var(--gray-50); }
.saas-scenarios .section-tag { background: rgba(245,158,11,0.08); color: #d97706; border: 1px solid rgba(245,158,11,0.1); }
.scenario-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.scenario-card {
  background: var(--white); border-radius: var(--radius-lg); padding: 36px;
  border: 1px solid var(--gray-200); transition: var(--transition);
  position: relative; overflow: hidden;
}
.scenario-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 0;
  background: linear-gradient(90deg, var(--primary), var(--accent)); opacity: 0.08;
  transition: height 0.4s;
}
.scenario-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.scenario-card:hover::before { height: 4px; }
.scenario-card h3 { font-size: 19px; font-weight: 800; color: var(--gray-900); margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
.scenario-card p { font-size: 15px; color: var(--gray-500); line-height: 1.7; }

/* ===== Compare Table ===== */
.saas-compare { padding: 100px 0; background: var(--white); }
.saas-compare .section-tag { background: rgba(239,68,68,0.08); color: var(--danger); border: 1px solid rgba(239,68,68,0.1); }
.compare-table-wrapper { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--gray-200); }
.compare-table { width: 100%; border-collapse: collapse; font-size: 15px; }
.compare-table th, .compare-table td { padding: 18px 24px; text-align: left; border-bottom: 1px solid var(--gray-100); }
.compare-table thead th { background: var(--gray-50); font-weight: 800; color: var(--gray-900); font-size: 14px; text-transform: uppercase; letter-spacing: 0.03em; }
.compare-table tbody td { color: var(--gray-600); }
.compare-table tbody tr:last-child td { border-bottom: none; }
.compare-table tbody tr { transition: var(--transition); }
.compare-table tbody tr:hover { background: var(--gray-50); }
.compare-table .highlight-col { background: linear-gradient(135deg, rgba(37,99,235,0.04), rgba(14,165,233,0.04)); color: var(--primary-dark); font-weight: 700; }

/* ===== FAQ ===== */
.saas-faq { padding: 100px 0; background: var(--gray-50); }
.saas-faq .section-tag { background: rgba(37,99,235,0.08); color: var(--primary); border: 1px solid rgba(37,99,235,0.1); }
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item { background: var(--white); border-radius: var(--radius); border: 1px solid var(--gray-200); overflow: hidden; transition: var(--transition); }
.faq-item:hover { box-shadow: var(--shadow-sm); border-color: var(--gray-300); }
.faq-item summary {
  padding: 22px 28px; font-size: 17px; font-weight: 700; color: var(--gray-900);
  cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center;
  transition: var(--transition);
}
.faq-item summary::after { content: '+'; font-size: 24px; color: var(--primary); font-weight: 400; transition: var(--transition); }
.faq-item[open] summary::after { content: '−'; }
.faq-item[open] summary { background: var(--gray-50); }
.faq-item p { padding: 0 28px 24px; font-size: 16px; color: var(--gray-500); line-height: 1.7; }

/* ===== CTA Section ===== */
.saas-cta-section { padding: 120px 0; background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; text-align: center; position: relative; overflow: hidden; }
.saas-cta-section::before {
  content: ''; position: absolute; inset: 0;
  background-image: radial-gradient(circle at 2px 2px, rgba(255,255,255,0.06) 1px, transparent 0);
  background-size: 40px 40px;
}
.saas-cta-section h2 { font-size: 42px; font-weight: 900; margin-bottom: 16px; position: relative; letter-spacing: -0.02em; }
.saas-cta-section > p { font-size: 20px; opacity: 0.9; margin-bottom: 40px; position: relative; }
.saas-cta-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; margin-bottom: 24px; position: relative; }
.saas-cta-section .btn-primary { background: #fff; color: var(--primary); box-shadow: 0 4px 20px rgba(0,0,0,0.2); }
.saas-cta-section .btn-primary:hover { box-shadow: 0 8px 30px rgba(0,0,0,0.3); }
.saas-cta-section .btn-secondary { background: transparent; color: #fff; border-color: rgba(255,255,255,0.4); }
.saas-cta-section .btn-secondary:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.6); }
.cta-phone { font-size: 17px; opacity: 0.9; position: relative; }
.cta-phone a { color: #fff; text-decoration: underline; font-weight: 600; }

/* ===== Case Cards ===== */
.saas-cases { padding: 100px 0; background: var(--white); }
.saas-cases .section-tag { background: rgba(16,185,129,0.08); color: var(--success); border: 1px solid rgba(16,185,129,0.1); }
.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card {
  background: var(--gray-50); border-radius: var(--radius-lg); padding: 36px;
  border: 1px solid var(--gray-200); transition: var(--transition); text-align: center;
  position: relative; overflow: hidden;
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(37,99,235,0.15); }
.case-icon { font-size: 44px; margin-bottom: 20px; }
.case-card h3 { font-size: 21px; font-weight: 800; color: var(--gray-900); margin-bottom: 12px; }
.case-card p { font-size: 15px; color: var(--gray-500); line-height: 1.7; }

/* ===== SVG Icons ===== */
.icon-svg { display: inline-block; width: 1em; height: 1em; vertical-align: middle; flex-shrink: 0; }
.icon-check { color: var(--success); }
.icon-cross { color: var(--danger); }
.card-icon .icon-svg, .feature-icon .icon-svg, .case-icon .icon-svg { width: 32px; height: 32px; }
.value-icon .icon-svg { width: 24px; height: 24px; }
.method-icon .icon-svg { width: 24px; height: 24px; }

/* ===== Article Content ===== */
.article-content h2 { font-size: 30px !important; font-weight: 900 !important; color: var(--gray-900) !important; margin: 56px 0 20px !important; letter-spacing: -0.02em !important; }
.article-content h3 { font-size: 22px !important; font-weight: 800 !important; color: var(--gray-800) !important; margin: 36px 0 14px !important; }
.article-content p { margin-bottom: 18px !important; }
.article-content ul { margin: 18px 0 24px !important; }
.article-content li { margin-bottom: 12px !important; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .container { padding: 0 18px; }
  .nav-links { position: fixed; top: 64px; left: 0; right: 0; background: rgba(255,255,255,0.98); backdrop-filter: blur(20px); flex-direction: column; padding: 24px; gap: 14px; box-shadow: var(--shadow-lg); transform: translateY(-150%); transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1); align-items: flex-start; }
  .nav-links.open { transform: translateY(0); }
  .menu-toggle { display: flex; }
  .hero { padding-top: 72px; }
  .hero h1 { font-size: 40px; }
  .hero-subtitle { font-size: 17px; }
  .section-header h2 { font-size: 30px; }
  .section-desc { font-size: 16px; }
  .saas-grid, .cards, .service-grid, .trust-quotes, .scenario-grid, .cases-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { flex-direction: column; align-items: center; }
  .step { max-width: 100%; }
  .step-arrow { transform: rotate(90deg); margin: 0; }
  .about-inner, .contact-inner { grid-template-columns: 1fr; gap: 48px; }
  .about-content h2 { font-size: 28px; }
  .contact-info h2 { font-size: 32px; }
  .contact-card { padding: 40px 24px; }
  .footer-top { flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }
  .compare-table { font-size: 13px; }
  .compare-table th, .compare-table td { padding: 12px 14px; }
  .saas-cta-section h2 { font-size: 30px; }
  .stat-number { font-size: 36px; }
  .orb-1 { width: 300px; height: 300px; }
  .orb-2 { width: 250px; height: 250px; }
}