/* ============ Reset & Base ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --primary-light: #dbeafe;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --success: #10b981;
  --purple: #7c3aed;
  --orange: #ea580c;
  --text: #1f2937;
  --text-soft: #4b5563;
  --text-muted: #6b7280;
  --border: #e5e7eb;
  --border-soft: #f3f4f6;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --bg-dark: #0f172a;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04), 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.08);
  --shadow-xl: 0 25px 50px -12px rgba(37, 99, 235, 0.25);
  --radius: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --grad: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
  --grad-soft: linear-gradient(135deg, rgba(37,99,235,0.12) 0%, rgba(124,58,237,0.12) 100%);
  --container: 1200px;
  --font-body: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s ease; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul { list-style: none; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* ============ Buttons ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 20px; font-size: 14px; font-weight: 600;
  border-radius: 10px; white-space: nowrap;
  transition: all .25s ease;
  border: 1.5px solid transparent;
  line-height: 1.2;
}
.btn-lg { padding: 14px 28px; font-size: 15px; }
.btn-block { display: flex; width: 100%; }
.btn-primary {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 8px 20px -6px rgba(37, 99, 235, 0.5);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px -6px rgba(37, 99, 235, 0.55);
}
.btn-outline {
  border-color: var(--primary);
  color: var(--primary);
  background: #fff;
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}
.btn-ghost {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border-color: rgba(255,255,255,0.25);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.18);
  border-color: rgba(255,255,255,0.4);
  transform: translateY(-2px);
}

/* ============ Nav ============ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: all .25s ease;
}
.nav.scrolled {
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; }
.logo-mark {
  width: 36px; height: 36px; border-radius: 10px;
  background: var(--grad);
  color: #fff; display: grid; place-items: center;
  font-size: 14px; font-weight: 800;
  box-shadow: 0 4px 10px rgba(37,99,235,0.3);
}
.logo-text { font-size: 18px; color: var(--text); letter-spacing: 0.5px; }
.nav-links {
  display: flex; align-items: center; gap: 8px;
}
.nav-links a {
  padding: 8px 14px; border-radius: 8px;
  font-size: 14px; font-weight: 500; color: var(--text-soft);
}
.nav-links a:hover { color: var(--primary); background: var(--primary-light); }
.nav-links a.active { color: var(--primary); background: var(--primary-light); font-weight: 600; }
.nav-cta { padding: 9px 18px; font-size: 13px; }
.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  padding: 8px;
}
.nav-toggle span {
  width: 22px; height: 2px; background: var(--text); border-radius: 2px;
  transition: all .3s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============ Hero ============ */
.hero {
  position: relative;
  padding: 160px 0 100px;
  overflow: hidden;
  background: linear-gradient(180deg, #eff6ff 0%, #ffffff 100%);
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(1000px 500px at 90% -10%, rgba(124,58,237,0.12), transparent 60%),
    radial-gradient(800px 400px at -10% 20%, rgba(37,99,235,0.12), transparent 60%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 16px; border-radius: 999px;
  background: #fff;
  border: 1px solid var(--border);
  font-size: 13px; font-weight: 500;
  color: var(--text-soft);
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
}
.hero-tag .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 4px rgba(16,185,129,0.15);
}
.hero-title {
  font-size: clamp(32px, 4.6vw, 54px);
  line-height: 1.15;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.5px;
  margin-bottom: 22px;
}
.hero-title .grad {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-desc {
  font-size: 16.5px;
  line-height: 1.75;
  color: var(--text-soft);
  max-width: 540px;
  margin-bottom: 32px;
}
.hero-cta {
  display: flex; flex-wrap: wrap; gap: 14px;
  margin-bottom: 40px;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding-top: 28px;
  border-top: 1px solid var(--border-soft);
  max-width: 540px;
}
.hero-stats div {
  display: flex; flex-direction: column; gap: 4px;
}
.hero-stats strong {
  font-size: 26px;
  font-weight: 800;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-stats span {
  font-size: 13px; color: var(--text-muted);
  font-weight: 500;
}

/* Hero mock card */
.hero-card {
  background: #fff;
  border-radius: var(--radius-xl);
  padding: 14px;
  box-shadow: var(--shadow-xl), 0 0 0 1px rgba(37,99,235,0.08);
  transform: perspective(1000px) rotateY(-4deg) rotateX(2deg);
  transition: transform .5s ease;
}
.hero-card:hover {
  transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}
.hero-card-head {
  padding: 8px 10px 14px;
}
.tabs {
  display: inline-flex; gap: 6px;
  padding: 4px; background: var(--bg-alt);
  border-radius: 10px;
}
.tab {
  padding: 6px 14px; font-size: 12.5px; font-weight: 600;
  border-radius: 7px; color: var(--text-muted);
  cursor: default;
}
.tab.active {
  background: #fff;
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}
.mockup {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, #fafbff 0%, #eef2ff 100%);
}
.mockup-nav {
  display: flex; align-items: center; gap: 6px;
  padding: 10px 14px;
  background: #fff;
  border-bottom: 1px solid var(--border);
}
.mockup-nav span { width: 10px; height: 10px; border-radius: 50%; }
.dot-r { background: #ef4444; }
.dot-y { background: #f59e0b; }
.dot-g { background: #10b981; }
.mockup-url {
  margin-left: 12px;
  padding: 4px 14px;
  flex: 1; max-width: 380px;
  font-size: 12px;
  color: var(--text-muted);
  background: var(--bg-alt);
  border-radius: 6px;
  text-align: center;
}
.mockup-body { padding: 26px 24px 30px; }
.mockup-hero {
  text-align: center;
  padding: 14px 10px 26px;
}
.mockup-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--text);
  line-height: 1.25;
  margin-bottom: 10px;
}
.mockup-sub {
  font-size: 13px; color: var(--text-muted);
  margin-bottom: 16px;
}
.mockup-btn {
  display: inline-block;
  padding: 9px 20px;
  background: var(--grad);
  color: #fff;
  font-size: 12.5px; font-weight: 600;
  border-radius: 8px;
  box-shadow: 0 6px 14px rgba(37,99,235,0.4);
}
.mockup-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  padding-top: 10px;
}
.m-card {
  height: 80px;
  border-radius: 10px;
  background: linear-gradient(135deg, #dbeafe, #bfdbfe);
  position: relative; overflow: hidden;
}
.m-card::after {
  content: ''; position: absolute;
  bottom: 8px; left: 10px; right: 10px;
  height: 10px;
  background: #fff; border-radius: 3px;
  opacity: 0.8;
}
.m-card::before {
  content: ''; position: absolute;
  top: 12px; left: 10px;
  width: 30px; height: 30px; border-radius: 7px;
  background: rgba(37,99,235,0.3);
}
.m-card.alt { background: linear-gradient(135deg, #ede9fe, #ddd6fe); }
.m-card.alt::before { background: rgba(124,58,237,0.3); }
.m-card.alt2 { background: linear-gradient(135deg, #ffedd5, #fed7aa); }
.m-card.alt2::before { background: rgba(249,115,22,0.3); }

/* ============ Trust Bar ============ */
.trust {
  background: #fff;
  padding: 24px 0;
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
}
.trust-inner {
  display: flex; flex-direction: column; align-items: center; gap: 16px;
}
.trust-title {
  font-size: 13px; font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.trust-logos {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: 48px;
  width: 100%;
}
.trust-logos span {
  font-size: 18px;
  font-weight: 700;
  color: #9ca3af;
  letter-spacing: 1px;
  filter: grayscale(100%);
  opacity: 0.7;
  transition: all .25s;
}
.trust-logos span:hover {
  color: var(--text-soft);
  filter: grayscale(0%);
  opacity: 1;
}

/* ============ Section Generic ============ */
.section { padding: 100px 0; position: relative; }
.section.alt-bg { background: var(--bg-alt); }
.section-head {
  max-width: 720px; margin: 0 auto 60px;
  text-align: center;
}
.eyebrow {
  display: inline-block;
  padding: 5px 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--primary);
  background: var(--primary-light);
  border-radius: 999px;
  margin-bottom: 14px;
}
.section-head h2 {
  font-size: clamp(26px, 3.2vw, 40px);
  font-weight: 800;
  color: var(--text);
  line-height: 1.25;
  letter-spacing: -0.3px;
  margin-bottom: 14px;
}
.section-head > p {
  font-size: 16px;
  color: var(--text-soft);
  line-height: 1.7;
}

/* ============ Services ============ */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: all .35s ease;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(37,99,235,0.25);
}
.icon-wrap {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: grid; place-items: center;
  margin-bottom: 22px;
}
.icon-wrap svg { width: 26px; height: 26px; }
.icon-wrap.blue { background: #dbeafe; color: var(--primary); }
.icon-wrap.purple { background: #ede9fe; color: var(--purple); }
.icon-wrap.orange { background: #ffedd5; color: var(--orange); }
.service h3 {
  font-size: 20px; font-weight: 700;
  margin-bottom: 12px; color: var(--text);
}
.service > p {
  font-size: 14.5px; line-height: 1.7;
  color: var(--text-soft);
  margin-bottom: 18px;
}
.feat-list { display: flex; flex-direction: column; gap: 9px; }
.feat-list li {
  display: flex; align-items: center; gap: 10px;
  font-size: 13.5px; color: var(--text-soft);
  padding-left: 4px;
}
.feat-list li::before {
  content: ''; flex-shrink: 0;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,0.15);
}
.service.feat {
  border: none;
  background: linear-gradient(180deg, #fff 0%, #f0f7ff 100%);
  box-shadow: var(--shadow);
}
.ribbon {
  position: absolute; top: 20px; right: 20px;
  padding: 4px 12px;
  background: var(--grad);
  color: #fff;
  font-size: 12px; font-weight: 600;
  border-radius: 999px;
  box-shadow: 0 4px 10px rgba(37,99,235,0.3);
}

/* ============ Pricing ============ */
.switcher {
  display: inline-flex;
  margin-top: 30px;
  padding: 5px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
}
.s-opt {
  padding: 8px 18px;
  font-size: 13.5px; font-weight: 600;
  color: var(--text-muted);
  border-radius: 8px;
  cursor: pointer;
  transition: all .2s;
}
.s-opt.active {
  background: var(--grad);
  color: #fff;
  box-shadow: 0 4px 10px rgba(37,99,235,0.3);
}
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  align-items: stretch;
}
.price-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 36px 30px 32px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  position: relative;
  display: flex; flex-direction: column;
  transition: all .35s;
}
.price-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.price-card.featured {
  border: 2px solid var(--primary);
  box-shadow: 0 30px 60px -20px rgba(37,99,235,0.3);
  transform: scale(1.02);
  background: linear-gradient(180deg, #fff 0%, #f5f9ff 100%);
}
.price-card.featured:hover {
  transform: scale(1.02) translateY(-6px);
}
.featured-tag {
  position: absolute; top: -13px; left: 50%;
  transform: translateX(-50%);
  padding: 5px 16px;
  background: var(--grad);
  color: #fff;
  font-size: 12px; font-weight: 700;
  border-radius: 999px;
  box-shadow: 0 4px 10px rgba(37,99,235,0.35);
}
.price-card h4 {
  font-size: 18px; font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
}
.price {
  display: flex; align-items: baseline; gap: 4px;
  margin-bottom: 8px;
}
.price .currency { font-size: 20px; font-weight: 700; color: var(--text-soft); }
.price .amount {
  font-size: 44px; font-weight: 800;
  color: var(--text);
  letter-spacing: -1px;
  line-height: 1;
}
.price .unit { font-size: 14px; color: var(--text-muted); font-weight: 500; }
.price-desc {
  font-size: 13.5px; color: var(--text-muted);
  margin-bottom: 24px;
}
.price-feats {
  display: flex; flex-direction: column; gap: 12px;
  margin-bottom: 28px;
  flex: 1;
}
.price-feats li {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 13.5px; color: var(--text-soft);
  line-height: 1.5;
}
.price-feats svg {
  width: 18px; height: 18px; flex-shrink: 0;
  margin-top: 2px;
}
.price-feats li:not(.disable) svg { color: var(--success); }
.price-feats li.disable { color: #9ca3af; text-decoration: line-through; }
.price-feats li.disable svg { color: #d1d5db; }

/* ============ Process / Steps ============ */
.steps {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  position: relative;
}
.steps::before {
  content: ''; position: absolute;
  top: 42px; left: 8%; right: 8%;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--border) 0 8px, transparent 8px 14px);
  z-index: 0;
}
.step {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 6px;
}
.step-num {
  width: 56px; height: 56px;
  margin: 0 auto 16px;
  background: #fff;
  border: 2px solid var(--primary-light);
  color: var(--primary);
  font-size: 18px; font-weight: 800;
  border-radius: 50%;
  display: grid; place-items: center;
  transition: all .3s;
}
.step:hover .step-num {
  background: var(--grad);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 10px 20px rgba(37,99,235,0.3);
  transform: scale(1.08);
}
.step h4 {
  font-size: 15px; font-weight: 700;
  color: var(--text); margin-bottom: 6px;
}
.step p {
  font-size: 12.5px; line-height: 1.6;
  color: var(--text-muted);
}

/* ============ Cases ============ */
.case-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.case-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: all .35s;
}
.case-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.case-img {
  aspect-ratio: 16/10;
  position: relative;
  overflow: hidden;
}
.case-img::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,0.4));
}
.case-1 { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); }
.case-2 { background: linear-gradient(135deg, #22c1c3 0%, #2d6cdf 100%); }
.case-3 { background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%); }
.case-4 { background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%); }
.case-1::before, .case-2::before, .case-3::before, .case-4::before {
  content: ''; position: absolute;
  inset: 12% 14%;
  background: rgba(255,255,255,0.9);
  border-radius: 10px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}
.case-tag {
  position: absolute; top: 14px; left: 14px; z-index: 2;
  padding: 4px 12px;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(6px);
  font-size: 12px; font-weight: 600;
  color: var(--primary);
  border-radius: 999px;
}
.case-body { padding: 22px 22px 26px; }
.case-body h3 {
  font-size: 17px; font-weight: 700;
  color: var(--text); margin-bottom: 8px;
}
.case-body > p {
  font-size: 13.5px; line-height: 1.65;
  color: var(--text-soft); margin-bottom: 14px;
}
.case-meta {
  display: flex; flex-wrap: wrap; gap: 8px;
  padding-top: 14px;
  border-top: 1px dashed var(--border);
}
.case-meta span {
  padding: 4px 10px;
  background: var(--bg-alt);
  font-size: 11.5px; font-weight: 600;
  color: var(--text-soft);
  border-radius: 6px;
}

/* ============ About ============ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  max-width: 900px;
  margin: 0 auto;
  gap: 60px;
  align-items: start;
}
.about-copy h2 {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 800;
  margin: 10px 0 18px;
  letter-spacing: -0.3px;
}
.about-copy .lead {
  font-size: 17px; line-height: 1.75;
  color: var(--text-soft);
  font-weight: 500;
  margin-bottom: 14px;
}
.about-copy p {
  font-size: 15px; line-height: 1.8;
  color: var(--text-soft);
  margin-bottom: 28px;
}
.about-copy strong { color: var(--primary); }
.about-points {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 28px;
}
.p-item {
  text-align: center;
  padding: 18px 8px;
  background: var(--bg-alt);
  border-radius: 14px;
  transition: all .25s;
}
.p-item:hover {
  background: var(--primary-light);
  transform: translateY(-3px);
}
.p-num {
  font-size: 28px; font-weight: 800;
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
  line-height: 1.1;
}
.p-label {
  font-size: 12px; font-weight: 500;
  color: var(--text-muted);
  margin-top: 4px;
}
.badges {
  display: flex; flex-wrap: wrap; gap: 10px;
}
.badge {
  padding: 7px 16px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 13px; font-weight: 600;
  color: var(--text-soft);
}

.about-card {
  padding: 14px;
  background: linear-gradient(135deg, var(--primary-light), #ede9fe);
  border-radius: var(--radius-xl);
}
.about-card-inner {
  background: #fff;
  border-radius: calc(var(--radius-xl) - 6px);
  padding: 28px 26px;
  box-shadow: var(--shadow);
}
.cert-item {
  display: flex; gap: 16px;
  padding: 16px 0;
  border-bottom: 1px dashed var(--border);
}
.cert-item:last-child { border-bottom: none; }
.cert-icon {
  width: 48px; height: 48px; flex-shrink: 0;
  display: grid; place-items: center;
  background: var(--primary-light);
  border-radius: 12px;
  font-size: 22px;
}
.cert-item h5 {
  font-size: 15px; font-weight: 700;
  color: var(--text); margin-bottom: 6px;
}
.cert-item p {
  font-size: 13px; line-height: 1.65;
  color: var(--text-soft);
}

/* ============ Contact ============ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 60px;
  align-items: start;
}
.contact-copy h2 {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 800;
  margin: 10px 0 14px;
  letter-spacing: -0.3px;
}
.contact-copy .lead {
  font-size: 16px; line-height: 1.75;
  color: var(--text-soft);
  margin-bottom: 30px;
}
.contact-info {
  display: flex; flex-direction: column; gap: 16px;
}
.ci {
  display: flex; align-items: center; gap: 16px;
  padding: 16px 18px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  transition: all .25s;
}
.ci:hover {
  border-color: rgba(37,99,235,0.3);
  box-shadow: var(--shadow);
  transform: translateX(4px);
}
.ci-icon {
  width: 44px; height: 44px; flex-shrink: 0;
  display: grid; place-items: center;
  background: var(--grad);
  color: #fff;
  border-radius: 12px;
  box-shadow: 0 6px 14px rgba(37,99,235,0.3);
}
.ci-icon svg { width: 20px; height: 20px; }
.ci strong {
  display: block;
  font-size: 13px; color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 2px;
}
.ci span {
  font-size: 15px; font-weight: 600;
  color: var(--text);
}

/* ---------- 企业微信二维码 ---------- */
.wework-box {
  margin-top: 22px;
  padding: 20px;
  background: #fff;
  border: 2px dashed #31c27c;
  border-radius: 18px;
  display: flex;
  align-items: center;
  gap: 20px;
  box-shadow: var(--shadow-sm);
  position: relative;
}
.wework-box::before {
  content: '';
  position: absolute;
  top: -10px; right: 20px;
  padding: 3px 12px;
  background: #31c27c;
  color: #fff;
  font-size: 11px; font-weight: 700;
  border-radius: 999px;
  letter-spacing: 1px;
  content: '推荐';
}
.wework-qr {
  width: 130px; height: 130px; flex-shrink: 0;
  padding: 8px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-sm);
}
.wework-qr img {
  width: 100%; height: 100%;
  object-fit: contain;
  border-radius: 8px;
  display: block;
}
.wework-info { flex: 1; min-width: 0; }
.ww-title {
  font-size: 16px; font-weight: 800;
  color: #1a7a4d;
  margin-bottom: 8px;
  display: flex; align-items: center; gap: 6px;
}
.ww-title::before {
  content: '💬';
  font-size: 18px;
}
.ww-desc {
  font-size: 13px; line-height: 1.75;
  color: var(--text-soft);
}

.contact-form {
  background: #fff;
  border-radius: var(--radius-xl);
  padding: 36px 34px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.contact-form h3 {
  font-size: 20px; font-weight: 700;
  color: var(--text);
  margin-bottom: 22px;
}
.contact-form .row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.field { margin-bottom: 16px; }
.field label {
  display: block;
  font-size: 13px; font-weight: 600;
  color: var(--text-soft);
  margin-bottom: 7px;
}
.field input, .field select, .field textarea {
  width: 100%;
  padding: 11px 14px;
  font-size: 14px; font-family: inherit;
  color: var(--text);
  background: var(--bg-alt);
  border: 1.5px solid transparent;
  border-radius: 10px;
  outline: none;
  transition: all .2s;
}
.field input::placeholder, .field textarea::placeholder { color: #9ca3af; }
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(37,99,235,0.1);
}
.field textarea { resize: vertical; min-height: 110px; }
.form-tip {
  margin-top: 14px;
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ============ Footer ============ */
.footer {
  background: var(--bg-dark);
  color: #cbd5e1;
  padding: 70px 0 0;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 50px;
}
.f-col.brand .logo-text { color: #fff; }
.f-intro {
  margin: 18px 0 22px;
  font-size: 13.5px; line-height: 1.75;
  color: #94a3b8;
  max-width: 340px;
}
.socials { display: flex; gap: 10px; }
.socials a {
  width: 36px; height: 36px;
  display: grid; place-items: center;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  color: #94a3b8;
  transition: all .2s;
}
.socials a:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  transform: translateY(-3px);
}
.socials svg { width: 16px; height: 16px; }
.f-col h5 {
  font-size: 15px; font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
}
.f-col ul { display: flex; flex-direction: column; gap: 10px; }
.f-col a {
  font-size: 13.5px;
  color: #94a3b8;
  transition: color .2s;
}
.f-col a:hover { color: #fff; }
.contact-list li {
  font-size: 13.5px;
  color: #94a3b8;
  line-height: 1.6;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 22px 0;
}
.fb-inner {
  display: flex; flex-wrap: wrap; justify-content: space-between;
  align-items: center; gap: 12px;
  font-size: 12.5px;
  color: #64748b;
}
.pay-methods strong {
  color: var(--accent);
  font-weight: 700;
}

/* ============ To top ============ */
.to-top {
  position: fixed;
  right: 28px; bottom: 28px;
  width: 46px; height: 46px;
  border-radius: 14px;
  background: var(--grad);
  color: #fff;
  display: grid; place-items: center;
  box-shadow: 0 10px 25px rgba(37,99,235,0.45);
  opacity: 0; pointer-events: none;
  transform: translateY(10px);
  transition: all .3s;
  z-index: 99;
}
.to-top.show {
  opacity: 1; pointer-events: auto;
  transform: translateY(0);
}
.to-top:hover { transform: translateY(-4px); }
.to-top svg { width: 20px; height: 20px; }

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  .hero { padding: 140px 0 80px; }
  .hero-inner { grid-template-columns: 1fr; gap: 50px; }
  .hero-card { max-width: 520px; margin: 0 auto; transform: none; }
  .service-grid, .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); gap: 30px 20px; }
  .steps::before { display: none; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
  .section { padding: 80px 0; }
}
@media (max-width: 768px) {
  .nav-links {
    position: fixed; top: 72px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 10px 16px 20px;
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    transform: translateY(-130%);
    transition: transform .3s;
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { padding: 12px 14px; }
  .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .hero { padding: 120px 0 60px; }
  .hero-title { font-size: 34px; }
  .hero-cta { flex-direction: column; }
  .hero-cta .btn { width: 100%; }
  .hero-stats { grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .hero-stats strong { font-size: 22px; }
  .trust-logos { gap: 24px; }
  .trust-logos span { font-size: 15px; }
  .service-grid, .pricing-grid, .case-grid { grid-template-columns: 1fr; }
  .price-card.featured { transform: none; }
  .price-card.featured:hover { transform: translateY(-6px); }
  .section { padding: 64px 0; }
  .section-head { margin-bottom: 40px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .about-points { grid-template-columns: repeat(2, 1fr); }
  .contact-form .row { grid-template-columns: 1fr; }
  .contact-form { padding: 26px 22px; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; padding-bottom: 36px; }
  .footer { padding-top: 50px; }
  .to-top { right: 16px; bottom: 16px; width: 42px; height: 42px; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-title { font-size: 28px; }
  .hero-desc { font-size: 15px; }
  .mockup-title { font-size: 18px; }
  .mockup-grid { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .m-card { height: 60px; }
  .about-card { padding: 10px; }
  .about-card-inner { padding: 22px 18px; }
  .cert-item { flex-direction: column; gap: 10px; }
  .wework-box { flex-direction: column; text-align: center; }
  .wework-qr { width: 150px; height: 150px; }
}