:root {
    --primary: #4F46E5;
    --primary-dark: #4338CA;
    --primary-light: #EEF2FF;
    --secondary: #0EA5E9;
    --secondary-light: #E0F2FE;
    --accent: #10B981;
    --accent-light: #D1FAE5;
    --orange: #F59E0B;
    --orange-light: #FEF3C7;
    --dark: #0F172A;
    --gray-900: #1E293B;
    --gray-800: #334155;
    --gray-700: #475569;
    --gray-600: #64748B;
    --gray-500: #94A3B8;
    --gray-400: #CBD5E1;
    --gray-300: #E2E8F0;
    --gray-200: #F1F5F9;
    --gray-100: #F8FAFC;
    --white: #FFFFFF;
    --gradient-1: linear-gradient(135deg, #4F46E5 0%, #7C3AED 100%);
    --gradient-2: linear-gradient(135deg, #0EA5E9 0%, #06B6D4 100%);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--white);
    color: var(--gray-800);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5 {
    font-weight: 600;
    line-height: 1.3;
    color: var(--dark);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========== Navigation ========== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--gray-200);
    transition: all 0.3s ease;
}

.nav.scrolled {
    box-shadow: var(--shadow);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.logo-icon svg {
    width: 24px;
    height: 24px;
    color: white;
}

.logo-text {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--dark);
}

.logo-text span {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    text-decoration: none;
    color: var(--gray-600);
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.nav-link:hover {
    color: var(--primary);
    background: var(--primary-light);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius);
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-family: inherit;
}

.btn-ghost {
    background: transparent;
    color: var(--gray-700);
}

.btn-ghost:hover {
    background: var(--gray-100);
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(79, 70, 229, 0.4);
}

.btn-secondary {
    background: var(--white);
    color: var(--dark);
    border: 2px solid var(--gray-300);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1rem;
}

.mobile-menu-btn {
    display: none;
    width: 44px;
    height: 44px;
    border: none;
    background: transparent;
    cursor: pointer;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--dark);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.mobile-menu {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 20px;
    box-shadow: var(--shadow-lg);
    border-top: 1px solid var(--gray-200);
}

.mobile-menu.active {
    display: block;
}

.mobile-menu .nav-link {
    display: block;
    padding: 14px 16px;
}

.mobile-menu .btn {
    display: block;
    text-align: center;
    margin-top: 12px;
}

/* ========== Hero Section ========== */
.hero {
    padding: 140px 0 100px;
    background: linear-gradient(180deg, var(--gray-100) 0%, var(--white) 100%);
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--gray-200) 1px, transparent 1px),
        linear-gradient(90deg, var(--gray-200) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.5;
}

.hero-glow {
    position: absolute;
    width: 800px;
    height: 800px;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
}

.hero-glow-1 {
    background: rgba(79, 70, 229, 0.3);
    top: -400px;
    right: -200px;
}

.hero-glow-2 {
    background: rgba(14, 165, 233, 0.2);
    bottom: -400px;
    left: -200px;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 6px 6px 14px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 50px;
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.hero-badge-new {
    padding: 4px 10px;
    background: var(--gradient-1);
    color: white;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

.hero-title {
    font-size: 3.25rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 20px;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.hero-title-gradient {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 1.2rem;
    color: var(--gray-600);
    margin-bottom: 32px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.hero-stat {
    text-align: left;
}

.hero-stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark);
}

.hero-stat-value span {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-stat-label {
    font-size: 0.9rem;
    color: var(--gray-500);
    margin-top: 4px;
}

.hero-visual {
    position: relative;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-mockup {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl), 0 0 0 1px rgba(0,0,0,0.05);
    overflow: hidden;
    position: relative;
}

.mockup-header {
    background: var(--gray-100);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid var(--gray-200);
}

.mockup-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.mockup-dot.red { background: #EF4444; }
.mockup-dot.yellow { background: #F59E0B; }
.mockup-dot.green { background: #10B981; }

.mockup-content {
    padding: 20px;
    background: var(--gray-50);
}

.mockup-dashboard {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 16px;
    min-height: 320px;
}

.mockup-sidebar {
    background: var(--white);
    border-radius: var(--radius);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mockup-nav-item {
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 0.85rem;
    color: var(--gray-600);
    display: flex;
    align-items: center;
    gap: 10px;
}

.mockup-nav-item.active {
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 500;
}

.mockup-main {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.mockup-stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.mockup-stat-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 16px;
}

.mockup-stat-label {
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-bottom: 4px;
}

.mockup-stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
}

.mockup-stat-value.up { color: var(--accent); }
.mockup-stat-value.primary { color: var(--primary); }
.mockup-stat-value.orange { color: var(--orange); }

.mockup-chart {
    background: var(--white);
    border-radius: var(--radius);
    padding: 16px;
    flex: 1;
}

.mockup-chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.mockup-chart-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--dark);
}

.mockup-chart-bars {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    height: 100px;
}

.mockup-bar {
    flex: 1;
    background: var(--primary-light);
    border-radius: 4px 4px 0 0;
    position: relative;
}

.mockup-bar::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--gradient-1);
    border-radius: 4px 4px 0 0;
}

.mockup-bar:nth-child(1) { height: 60%; }
.mockup-bar:nth-child(1)::after { height: 70%; }
.mockup-bar:nth-child(2) { height: 80%; }
.mockup-bar:nth-child(2)::after { height: 65%; }
.mockup-bar:nth-child(3) { height: 45%; }
.mockup-bar:nth-child(3)::after { height: 80%; }
.mockup-bar:nth-child(4) { height: 90%; }
.mockup-bar:nth-child(4)::after { height: 75%; }
.mockup-bar:nth-child(5) { height: 70%; }
.mockup-bar:nth-child(5)::after { height: 85%; }
.mockup-bar:nth-child(6) { height: 100%; }
.mockup-bar:nth-child(6)::after { height: 90%; }

.hero-floating {
    position: absolute;
    background: var(--white);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: var(--shadow-lg);
    animation: float 4s ease-in-out infinite;
}

.hero-floating-1 {
    top: 20px;
    right: -30px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.hero-floating-2 {
    bottom: 40px;
    left: -30px;
    animation-delay: -2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.floating-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.floating-icon.green { background: var(--accent-light); }
.floating-icon.blue { background: var(--secondary-light); }

.floating-text {
    font-size: 0.85rem;
}

.floating-text strong {
    display: block;
    color: var(--dark);
    font-weight: 600;
}

.floating-text span {
    color: var(--gray-500);
    font-size: 0.8rem;
}

/* ========== Brands Section ========== */
.brands {
    padding: 60px 0;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
}

.brands-title {
    text-align: center;
    font-size: 0.9rem;
    color: var(--gray-500);
    margin-bottom: 32px;
}

.brands-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 60px;
    flex-wrap: wrap;
}

.brand-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-400);
    opacity: 0.6;
    transition: opacity 0.3s ease;
}

.brand-logo:hover {
    opacity: 1;
}

/* ========== Services/Features Section ========== */
.services {
    padding: 100px 0;
    background: var(--white);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    padding: 6px 14px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.section-title {
    font-size: 2.5rem;
    color: var(--dark);
    margin-bottom: 16px;
}

.section-desc {
    font-size: 1.1rem;
    color: var(--gray-600);
    line-height: 1.7;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-1);
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.service-card:hover::before {
    opacity: 1;
}

.service-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 20px;
}

.service-icon.purple { background: var(--primary-light); }
.service-icon.blue { background: var(--secondary-light); }
.service-icon.green { background: var(--accent-light); }
.service-icon.orange { background: var(--orange-light); }

.service-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 12px;
}

.service-desc {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 16px;
}

.service-features {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.service-feature {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--gray-700);
}

.service-feature-icon {
    width: 18px;
    height: 18px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 10px;
    flex-shrink: 0;
}

/* ========== Modules Section ========== */
.modules {
    padding: 100px 0;
    background: var(--gray-100);
}

.modules-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.module-tab {
    padding: 12px 24px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 50px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--gray-600);
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
}

.module-tab:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.module-tab.active {
    background: var(--gradient-1);
    border-color: transparent;
    color: white;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.module-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.module-info h3 {
    font-size: 2rem;
    margin-bottom: 16px;
}

.module-info > p {
    font-size: 1.1rem;
    color: var(--gray-600);
    margin-bottom: 32px;
    line-height: 1.7;
}

.module-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.module-feature {
    display: flex;
    gap: 16px;
}

.module-feature-icon {
    width: 44px;
    height: 44px;
    background: var(--primary-light);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.module-feature-text h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 4px;
}

.module-feature-text p {
    font-size: 0.9rem;
    color: var(--gray-600);
}

.module-visual {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 24px;
    box-shadow: var(--shadow-lg);
}

.module-screen {
    background: var(--gray-100);
    border-radius: var(--radius);
    padding: 20px;
    min-height: 350px;
}

.screen-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.screen-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--dark);
}

.screen-actions {
    display: flex;
    gap: 8px;
}

.screen-btn {
    padding: 8px 16px;
    background: var(--gradient-1);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
}

.screen-table {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
}

.screen-table-header {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 12px;
    padding: 12px 16px;
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--gray-500);
}

.screen-table-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 12px;
    padding: 14px 16px;
    border-bottom: 1px solid var(--gray-100);
    font-size: 0.85rem;
    align-items: center;
}

.screen-table-row:last-child {
    border-bottom: none;
}

.row-service {
    display: flex;
    align-items: center;
    gap: 10px;
}

.row-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.row-icon.cleaning { background: #FEF3C7; }
.row-icon.repair { background: #DBEAFE; }
.row-icon.care { background: #FCE7F3; }

.status-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 500;
}

.status-badge.active { background: var(--accent-light); color: var(--accent); }
.status-badge.pending { background: var(--orange-light); color: var(--orange); }

/* ========== Benefits Section ========== */
.benefits {
    padding: 100px 0;
    background: var(--dark);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.benefits-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 30%, rgba(79, 70, 229, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(14, 165, 233, 0.1) 0%, transparent 50%);
}

.benefits .section-header {
    position: relative;
    z-index: 1;
}

.benefits .section-tag {
    background: rgba(79, 70, 229, 0.3);
    color: #A5B4FC;
}

.benefits .section-title {
    color: var(--white);
}

.benefits .section-desc {
    color: var(--gray-400);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
    z-index: 1;
}

.benefit-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    transition: all 0.3s ease;
}

.benefit-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-4px);
}

.benefit-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin: 0 auto 20px;
    box-shadow: 0 8px 20px rgba(79, 70, 229, 0.3);
}

.benefit-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 8px;
}

.benefit-desc {
    font-size: 0.9rem;
    color: var(--gray-400);
    line-height: 1.6;
}

/* ========== Pricing Section ========== */
.pricing {
    padding: 100px 0;
    background: var(--gray-100);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: 40px 32px;
    position: relative;
    transition: all 0.3s ease;
}

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

.pricing-card.popular {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.pricing-card.popular::before {
    content: '推荐';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 16px;
    background: var(--gradient-1);
    color: white;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
}

.pricing-name {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 8px;
}

.pricing-desc {
    font-size: 0.9rem;
    color: var(--gray-500);
    margin-bottom: 24px;
}

.pricing-price {
    margin-bottom: 24px;
}

.pricing-amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--dark);
}

.pricing-amount span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--gray-500);
}

.pricing-period {
    font-size: 0.9rem;
    color: var(--gray-500);
}

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

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
    font-size: 0.95rem;
    color: var(--gray-700);
    border-bottom: 1px solid var(--gray-100);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-check {
    width: 20px;
    height: 20px;
    background: var(--accent-light);
    color: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    flex-shrink: 0;
}

.pricing-btn {
    width: 100%;
    padding: 14px;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
}

.pricing-card:not(.popular) .pricing-btn {
    background: var(--gray-100);
    color: var(--dark);
    border: none;
}

.pricing-card:not(.popular) .pricing-btn:hover {
    background: var(--gray-200);
}

.pricing-card.popular .pricing-btn {
    background: var(--gradient-1);
    color: white;
    border: none;
    box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
}

.pricing-card.popular .pricing-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(79, 70, 229, 0.4);
}

/* ========== CTA Section ========== */
.cta {
    padding: 100px 0;
    background: var(--white);
}

.cta-container {
    background: var(--gradient-1);
    border-radius: var(--radius-xl);
    padding: 80px 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 0% 0%, rgba(255,255,255,0.1) 0%, transparent 50%),
        radial-gradient(circle at 100% 100%, rgba(255,255,255,0.1) 0%, transparent 50%);
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: 2.5rem;
    color: var(--white);
    margin-bottom: 16px;
}

.cta-desc {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.cta-btn-primary {
    padding: 16px 32px;
    background: var(--white);
    color: var(--primary);
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
    text-decoration: none;
}

.cta-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.cta-btn-secondary {
    padding: 16px 32px;
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
    text-decoration: none;
}

.cta-btn-secondary:hover {
    border-color: white;
    background: rgba(255, 255, 255, 0.1);
}

/* ========== FAQ Section ========== */
.faq {
    padding: 100px 0;
    background: var(--gray-100);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--white);
    border-radius: var(--radius);
    margin-bottom: 12px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: transparent;
    border: none;
    text-align: left;
    cursor: pointer;
    font-family: inherit;
}

.faq-question h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--dark);
    padding-right: 16px;
}

.faq-icon {
    width: 28px;
    height: 28px;
    background: var(--gray-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--gray-500);
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.faq-item.active .faq-icon {
    background: var(--primary);
    color: white;
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 300px;
}

.faq-answer p {
    padding: 0 24px 20px;
    color: var(--gray-600);
    line-height: 1.7;
}

/* ========== Contact Section ========== */
.contact {
    padding: 80px 0;
    background: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.contact-card {
    background: var(--gray-100);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    transition: all 0.3s ease;
}

.contact-card:hover {
    background: var(--primary-light);
}

.contact-icon {
    width: 56px;
    height: 56px;
    background: var(--white);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin: 0 auto 16px;
    box-shadow: var(--shadow-sm);
}

.contact-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 8px;
}

.contact-card p {
    font-size: 0.95rem;
    color: var(--gray-600);
}

.contact-card a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

/* ========== Footer ========== */
.footer {
    padding: 60px 0 30px;
    background: var(--dark);
    color: var(--gray-400);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand .logo-text {
    color: white;
}

.footer-brand p {
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 20px;
}

.footer-column h4 {
    color: white;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 12px;
}

.footer-column a {
    color: var(--gray-400);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

.footer-column a:hover {
    color: var(--primary);
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-bottom p {
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: var(--gray-400);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: var(--primary);
}

/* ========== Demo Modal ========== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 20px;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--white);
    border-radius: var(--radius-xl);
    max-width: 480px;
    width: 100%;
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

.modal-header {
    padding: 24px 24px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 {
    font-size: 1.35rem;
}

.modal-close {
    width: 36px;
    height: 36px;
    border: none;
    background: var(--gray-100);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--gray-500);
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: var(--gray-200);
}

.modal-body {
    padding: 24px;
}

.qrcode-container {
    text-align: center;
    padding: 8px 0 0;
}

.qrcode-icon {
    width: 56px;
    height: 56px;
    background: #f0faf0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
}

.qrcode-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 6px;
}

.qrcode-desc {
    font-size: 0.9rem;
    color: var(--gray-500);
    line-height: 1.6;
    margin-bottom: 20px;
}

.qrcode-img {
    width: 220px;
    height: 220px;
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
    padding: 8px;
    background: var(--white);
}

.qrcode-hint {
    margin-top: 16px;
    font-size: 0.82rem;
    color: var(--gray-400);
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .hero-visual {
        order: -1;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .mockup-dashboard {
        grid-template-columns: 1fr;
    }

    .mockup-sidebar {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .module-content.active {
        grid-template-columns: 1fr;
    }

    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links, .nav-actions {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 20px;
    }

    .hero-floating {
        display: none;
    }

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

    .modules-tabs {
        flex-direction: column;
        align-items: stretch;
    }

    .module-tab {
        text-align: center;
    }

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

    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .cta-container {
        padding: 60px 24px;
    }

    .cta-title {
        font-size: 1.75rem;
    }

    .cta-actions {
        flex-direction: column;
    }

    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
    }

    .btn-lg {
        width: 100%;
    }

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

    .screen-table-header,
    .screen-table-row {
        grid-template-columns: 1fr 1fr;
    }

    .screen-table-header > *:nth-child(3),
    .screen-table-header > *:nth-child(4),
    .screen-table-row > *:nth-child(3),
    .screen-table-row > *:nth-child(4) {
        display: none;
    }
}