/* ========================================
   云聚智慧护工管理系统 - 产品官网样式
   ======================================== */

/* CSS Variables */
:root {
    --primary: #5B9BD5;
    --primary-dark: #4A89C4;
    --primary-light: #7AB5E6;
    --secondary: #3AA99E;
    --secondary-dark: #2E8A81;
    --accent: #F5A623;
    --text-dark: #1A1A2E;
    --text-body: #4A4A5A;
    --text-muted: #8A8A9A;
    --bg-white: #FFFFFF;
    --bg-light: #F8FAFC;
    --bg-gray: #EEF2F7;
    --bg-dark: #1A1A2E;
    --border: #E2E8F0;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);
    --radius: 16px;
    --radius-sm: 8px;
    --radius-lg: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-body);
    background: var(--bg-white);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul {
    list-style: none;
}

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

/* ========================================
   Header & Navigation
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.header.scrolled {
    border-bottom-color: var(--border);
    box-shadow: var(--shadow-sm);
}

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

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

.logo img {
    height: 36px;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-brand {
    font-size: 20px;
    font-weight: 700;
    color: var(--secondary);
    line-height: 1.2;
}

.logo-sub {
    font-size: 11px;
    color: var(--text-muted);
}

.nav-menu {
    display: flex;
    gap: 32px;
}

.nav-menu a {
    font-size: 14px;
    color: var(--text-body);
    padding: 8px 0;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    transition: var(--transition);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 24px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border-color: transparent;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(91, 155, 213, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.3);
}

.btn-large {
    padding: 14px 32px;
    font-size: 16px;
}

.btn-block {
    width: 100%;
}

.btn-arrow {
    transition: transform 0.3s;
}

.btn:hover .btn-arrow {
    transform: translateX(4px);
}

.play-icon {
    width: 20px;
    height: 20px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    padding-top: 72px;
    min-height: 100vh;
    background: linear-gradient(135deg, #1A1A2E 0%, #2D2D44 50%, #1A1A2E 100%);
    position: relative;
    overflow: hidden;
}

.hero > .container {
    max-width: 1340px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(91, 155, 213, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(58, 169, 158, 0.15) 0%, transparent 50%);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 40px;
    align-items: center;
    min-height: calc(100vh - 72px);
    padding: 40px 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    color: white;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    padding: 8px 16px;
    font-size: 13px;
    margin-bottom: 20px;
}

.badge-icon {
    font-size: 16px;
    display: inline-flex;
    align-items: center;
}

.badge-icon svg {
    width: 16px;
    height: 16px;
}

.hero-title {
    font-size: 42px;
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.hero-title .highlight {
    display: block;
    background: linear-gradient(90deg, var(--primary-light), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 16px;
    opacity: 0.75;
    margin-bottom: 28px;
    line-height: 1.8;
}

.hero-metrics {
    display: flex;
    gap: 36px;
    margin-bottom: 32px;
}

.metric {
    text-align: center;
}

.metric-value {
    display: block;
    font-size: 32px;
    font-weight: 700;
    background: linear-gradient(90deg, var(--accent), #FFD93D);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.metric-label {
    font-size: 14px;
    opacity: 0.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.hero-trust {
    font-size: 14px;
    opacity: 0.6;
}

.hero-trust strong {
    color: var(--accent);
    opacity: 1;
}

.hero-visual {
    position: relative;
    margin: -20px -60px -20px 0;
}

.dashboard-preview {
    position: relative;
    perspective: 1000px;
}

.dashboard-preview > img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 25px 80px rgba(0, 0, 0, 0.35), 0 8px 24px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.float-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-radius: 10px;
    padding: 10px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    font-size: 13px;
    font-weight: 500;
    color: var(--text-dark);
    animation: float 3s ease-in-out infinite;
    white-space: nowrap;
}

.float-card .card-icon {
    font-size: 18px;
    display: inline-flex;
    align-items: center;
}

.float-card .card-icon svg {
    width: 20px;
    height: 20px;
}

.float-card.card-1 {
    top: 8%;
    left: -6%;
    animation-delay: 0s;
}

.float-card.card-2 {
    top: 38%;
    right: -4%;
    animation-delay: 1s;
}

.float-card.card-3 {
    bottom: 12%;
    left: 3%;
    animation-delay: 2s;
}

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

/* ========================================
   Clients Bar
   ======================================== */
.clients-bar {
    background: var(--bg-light);
    padding: 40px 0;
    border-bottom: 1px solid var(--border);
}

.clients-label {
    text-align: center;
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 24px;
}

.clients-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 48px;
    flex-wrap: wrap;
}

.client-logo img {
    height: 32px;
    filter: grayscale(100%);
    opacity: 0.5;
    transition: var(--transition);
}

.client-logo:hover img {
    filter: grayscale(0%);
    opacity: 1;
}

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

.section-gray {
    background: var(--bg-light);
}

.section-dark {
    background: linear-gradient(135deg, var(--bg-dark) 0%, #2D2D44 100%);
    color: white;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    font-size: 12px;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 50px;
    margin-bottom: 16px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.section-dark .section-title {
    color: white;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-muted);
}

.section-dark .section-subtitle {
    color: rgba(255, 255, 255, 0.7);
}

/* ========================================
   Features Section
   ======================================== */
.features-tabs {
    max-width: 1100px;
    margin: 0 auto;
}

.tab-nav {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-bottom: 48px;
    background: var(--bg-light);
    padding: 6px;
    border-radius: 12px;
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.tab-btn {
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 500;
    border: none;
    background: transparent;
    color: var(--text-muted);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn:hover {
    color: var(--text-dark);
}

.tab-btn.active {
    background: white;
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.tab-desc {
    text-align: center;
    margin-bottom: 32px;
    padding: 16px 24px;
    background: linear-gradient(135deg, rgba(91, 155, 213, 0.06), rgba(58, 169, 158, 0.06));
    border-radius: var(--radius-sm);
    border: 1px solid rgba(91, 155, 213, 0.15);
}

.tab-desc .tab-tech {
    display: inline-block;
    background: var(--primary);
    color: white;
    font-size: 11px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 4px;
    margin-right: 8px;
}

.tab-desc .tab-role {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
}

.tab-desc p {
    font-size: 14px;
    color: var(--text-body);
    margin-top: 8px;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    transition: var(--transition);
}

.feature-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: white;
    font-size: 24px;
}

.feature-icon svg {
    width: 24px;
    height: 24px;
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ========================================
   Screenshots Section (Tab Style)
   ======================================== */
.screenshot-tabs {
    max-width: 900px;
    margin: 0 auto;
}

.screenshot-tab-nav {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.screenshot-tab-btn {
    padding: 10px 20px;
    border: 2px solid var(--border);
    border-radius: 999px;
    background: white;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-body);
    cursor: pointer;
    transition: all 0.3s ease;
}

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

.screenshot-tab-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.screenshot-panel {
    display: none;
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    animation: fadeInUp 0.4s ease;
    height: 480px;
}

.screenshot-panel.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.screenshot-panel img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
}

.screenshot-panel-mobile {
    background: linear-gradient(135deg, #f0f4f8, #e8edf3);
    padding: 24px;
    gap: 24px;
}

.screenshot-panel-mobile img {
    width: auto;
    max-height: 100%;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.screenshot-panel-pair img {
    height: 100%;
    width: auto;
    max-width: none;
    flex-shrink: 0;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   Solutions Section (Pain Points)
   ======================================== */
.solutions-grid-6 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.solution-card-mini {
    background: white;
    border-radius: var(--radius);
    padding: 28px 24px;
    border: 1px solid var(--border);
    transition: var(--transition);
    position: relative;
    text-align: center;
}

.solution-card-mini:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.solution-pain {
    display: inline-block;
    background: #FFF0E8;
    color: var(--accent);
    font-size: 11px;
    font-weight: 700;
    padding: 3px 12px;
    border-radius: 4px;
    margin-bottom: 12px;
}

.solution-fix {
    display: inline-block;
    background: rgba(58, 169, 158, 0.1);
    color: var(--secondary);
    font-size: 11px;
    font-weight: 700;
    padding: 3px 12px;
    border-radius: 4px;
    margin-bottom: 12px;
}

.solution-arrow {
    color: var(--primary);
    font-size: 18px;
    margin: 8px 0;
    opacity: 0.4;
}

.solution-icon {
    font-size: 36px;
    margin-bottom: 12px;
}

.solution-card-mini h3 {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.solution-desc {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.solution-features {
    text-align: left;
    margin-bottom: 0;
}

.solution-features li {
    padding: 5px 0;
    font-size: 13px;
    color: var(--text-body);
    padding-left: 20px;
    position: relative;
}

.solution-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary);
    font-weight: bold;
    font-size: 13px;
}

/* ========================================
   Advantages Section
   ======================================== */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}

.advantage-card {
    display: flex;
    gap: 20px;
    padding: 24px;
    background: var(--bg-light);
    border-radius: var(--radius);
    transition: var(--transition);
}

.advantage-card:hover {
    background: white;
    box-shadow: var(--shadow-md);
}

.advantage-number {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
    opacity: 0.3;
    line-height: 1;
}

.advantage-content h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.advantage-content p {
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.6;
}

.tech-stack {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid var(--border);
}

.tech-stack h4 {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 24px;
}

.tech-items {
    display: flex;
    justify-content: center;
    gap: 48px;
}

.tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.tech-item img {
    height: 40px;
    filter: grayscale(100%);
    opacity: 0.5;
}

.tech-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    opacity: 0.6;
}

.tech-icon svg {
    width: 32px;
    height: 32px;
}

.tech-item span {
    font-size: 12px;
    color: var(--text-muted);
}

/* ========================================
   Cases Section
   ======================================== */
.cases-hospitals {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-bottom: 48px;
}

.case-hospital-badge {
    display: flex;
    align-items: center;
    gap: 14px;
    background: white;
    border-radius: 60px;
    padding: 12px 28px 12px 12px;
    box-shadow: var(--shadow-md);
}

.case-hospital-badge span {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
}

.case-logo-placeholder {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.case-logo-placeholder svg {
    width: 22px;
    height: 22px;
}

.cases-metrics-unified {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
    max-width: 960px;
    margin: 0 auto;
}

.case-metric-item {
    text-align: center;
    background: white;
    border-radius: var(--radius);
    padding: 28px 16px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.case-metric-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.case-metric-value {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.case-metric-label {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.4;
}

/* ========================================
   Pricing Section
   ======================================== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.pricing-card {
    background: white;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 40px 32px;
    position: relative;
    transition: var(--transition);
}

.pricing-card:hover {
    border-color: var(--primary);
}

.pricing-card.featured {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
    transform: scale(1.02);
}

.pricing-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    font-size: 12px;
    font-weight: 600;
    padding: 6px 20px;
    border-radius: 50px;
}

.pricing-header {
    text-align: center;
    margin-bottom: 24px;
}

.pricing-header h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.pricing-desc {
    font-size: 14px;
    color: var(--text-muted);
}

.pricing-price {
    text-align: center;
    margin-bottom: 32px;
    padding: 24px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.price-currency {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-dark);
    vertical-align: top;
}

.price-value {
    font-size: 48px;
    font-weight: 700;
    color: var(--text-dark);
}

.price-period {
    font-size: 14px;
    color: var(--text-muted);
}

.pricing-features {
    margin-bottom: 32px;
}

.pricing-features li {
    padding: 10px 0;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.pricing-features li.disabled {
    color: var(--text-muted);
}

.pricing-features .check {
    color: var(--secondary);
    font-weight: bold;
}

.pricing-features .cross {
    color: var(--text-muted);
}

.pricing-note {
    text-align: center;
    font-size: 14px;
    color: var(--text-muted);
}

/* ========================================
   Trial Section
   ======================================== */
.trial-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.trial-content h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
}

.trial-content p {
    font-size: 18px;
    opacity: 0.8;
    margin-bottom: 32px;
}

.trial-benefits {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.trial-benefits li {
    font-size: 14px;
    opacity: 0.9;
}

.trial-form-wrapper {
    background: white;
    border-radius: var(--radius);
    padding: 40px;
    color: var(--text-body);
}

.trial-form h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 24px;
    text-align: center;
}

.form-group {
    margin-bottom: 16px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    transition: var(--transition);
    background: var(--bg-light);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    background: white;
}

.form-tip {
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 16px;
}

/* ========================================
   About Section
   ======================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-content .section-tag {
    margin-bottom: 16px;
}

.about-content h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 24px;
}

.about-content p {
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 32px;
    padding-top: 32px;
    border-top: 1px solid var(--border);
}

.about-stat {
    text-align: center;
}

.about-stat .stat-value {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
}

.about-stat .stat-label {
    font-size: 13px;
    color: var(--text-muted);
}

.about-certs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.cert-item {
    background: var(--bg-light);
    border-radius: var(--radius);
    padding: 32px;
    text-align: center;
}

.cert-item img {
    height: 80px;
    margin: 0 auto 16px;
}

.cert-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: 16px;
    color: white;
}

.cert-icon svg {
    width: 32px;
    height: 32px;
}

.cert-item span {
    font-size: 14px;
    color: var(--text-body);
}

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

.contact-card {
    background: white;
    border-radius: var(--radius);
    padding: 32px;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.contact-icon {
    font-size: 32px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-icon svg {
    width: 32px;
    height: 32px;
    color: var(--primary);
}

.contact-card h4 {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.contact-value {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.contact-note {
    font-size: 12px;
    color: var(--text-muted);
}

.contact-qrcode {
    width: 120px;
    height: 120px;
    border-radius: 8px;
    object-fit: cover;
    margin: 0 auto 8px;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--bg-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: 80px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
    gap: 40px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    height: 36px;
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 14px;
    opacity: 0.7;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    background: rgba(255, 255, 255, 0.1);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary);
}

.footer-links h4,
.footer-contact h4 {
    font-size: 14px;
    font-weight: 600;
    color: white;
    margin-bottom: 20px;
}

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

.footer-links a {
    font-size: 14px;
    opacity: 0.7;
    transition: var(--transition);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--primary-light);
}

.footer-contact p {
    font-size: 14px;
    opacity: 0.7;
    margin-bottom: 12px;
}

.footer-qrcode {
    margin-top: 16px;
    text-align: center;
}

.footer-qrcode img {
    width: 100px;
    height: 100px;
    background: white;
    padding: 8px;
    border-radius: 8px;
    margin: 0 auto 8px;
}

.footer-qrcode span {
    font-size: 12px;
    opacity: 0.6;
}

.footer-bottom {
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    opacity: 0.6;
}

.footer-bottom a {
    color: inherit;
}

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

/* ========================================
   Floating Buttons
   ======================================== */
.floating-buttons {
    position: fixed;
    right: 24px;
    bottom: 100px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.float-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    color: white;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.float-btn:hover {
    transform: translateX(-4px);
}

.float-btn.phone {
    background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
}

.float-btn.trial {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}

.float-btn .icon {
    font-size: 18px;
    display: inline-flex;
    align-items: center;
}

.float-btn .icon svg {
    width: 20px;
    height: 20px;
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-visual {
        display: none;
    }
    
    .hero-metrics {
        justify-content: center;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .features-grid,
    .solutions-grid-6,
    .advantages-grid,
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .cases-metrics-unified {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .tab-nav {
        flex-wrap: wrap;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .about-grid,
    .trial-grid {
        grid-template-columns: 1fr;
    }
    
    .about-certs {
        order: -1;
    }
    
    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu,
    .nav-actions {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-menu.active {
        display: flex;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        gap: 0;
        box-shadow: var(--shadow-md);
    }
    
    .nav-menu.active li {
        border-bottom: 1px solid var(--border);
    }
    
    .nav-menu.active a {
        display: block;
        padding: 16px 0;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-subtitle br {
        display: none;
    }
    
    .hero-metrics {
        flex-wrap: wrap;
        gap: 24px;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .features-grid,
    .solutions-grid-6,
    .advantages-grid,
    .pricing-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .cases-hospitals {
        flex-direction: column;
        align-items: center;
        gap: 16px;
    }

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

    .screenshot-tab-btn {
        padding: 8px 14px;
        font-size: 13px;
    }

    .screenshot-panel {
        height: 320px;
    }

    .screenshot-panel-pair img {
        max-width: 48%;
    }
    
    .tab-nav {
        flex-direction: column;
        width: 100%;
    }
    
    .trial-grid {
        gap: 40px;
    }
    
    .trial-benefits {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-certs {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }
    
    .floating-buttons {
        right: 16px;
        bottom: 80px;
    }
    
    .float-btn .text {
        display: none;
    }
    
    .float-btn {
        padding: 14px;
        border-radius: 50%;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .metric-value {
        font-size: 28px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .clients-logos {
        gap: 24px;
    }
    
    .client-logo img {
        height: 24px;
    }
}