/* Reset & Base */
:root {
    --primary: #FF6B6B; /* Warm Coral as requested */
    --primary-dark: #EE5A5A;
    --secondary: #2C3E50; /* Professional Dark Blue */
    --accent: #26C281; /* Success Green */
    --accent-hover: #1E9E69;
    --dark: #2C3E50;
    --gray: #666666;
    --light: #F8F9FA; /* Off-white background */
    --white: #ffffff;
    --success: #26C281;
    --warning: #F39C12;
    --danger: #E74C3C;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'PingFang SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', sans-serif;
    color: var(--text-main);
    line-height: 1.6;
    background-color: var(--light);
}

h1, h2, h3, h4 {
    margin: 0;
    font-weight: 700;
    color: var(--dark);
}

h1 { font-size: 42px; } /* Increased for visibility */
h2 { font-size: 32px; }
h3 { font-size: 24px; }
p { font-size: 16px; margin-bottom: 1.5em; max-width: 800px; }

/* Section Spacing */
section {
    padding: 80px 0; /* Increased whitespace */
}

/* ... existing styles ... */

/* Mobile Sticky CTA */
.mobile-sticky-cta {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: white;
    padding: 10px 20px;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
    z-index: 9999;
    justify-content: space-between;
    gap: 10px;
}

.mobile-sticky-cta .btn {
    flex: 1;
    padding: 10px;
    font-size: 14px;
}

@media (max-width: 768px) {
    .mobile-sticky-cta {
        display: flex;
    }
    body {
        padding-bottom: 60px; /* Space for sticky bar */
    }
    h1 { font-size: 28px; } /* Adjusted for mobile */
    .hero { padding-top: 100px; }
    .hero-content { flex-direction: column; text-align: center; }
    .hero-btns { flex-direction: column; }
    .btn { width: 100%; }
}

/* Tab System */
.tab-container {
    margin-top: 40px;
}
.tab-nav {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}
.tab-btn {
    padding: 10px 20px;
    border: none;
    background: transparent;
    font-size: 18px;
    font-weight: 600;
    color: var(--gray);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: 0.3s;
}
.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}
.tab-content {
    display: none;
    animation: fadeIn 0.5s;
}
.tab-content.active {
    display: block;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Pain Points Section */
.pain-points {
    background: #FFF5F5; /* Light red bg */
}
.pain-point-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}
.pain-card {
    background: white;
    padding: 25px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    text-align: center;
}
.pain-icon {
    font-size: 40px;
    margin-bottom: 15px;
}

/* Cost Comparison Table */
.comparison-table {
    width: 100%;
    border-collapse: collapse;
    margin: 40px 0;
    background: white;
    box-shadow: var(--shadow);
}
.comparison-table th, .comparison-table td {
    padding: 15px;
    text-align: center;
    border-bottom: 1px solid #eee;
}
.comparison-table th {
    background: var(--secondary);
    color: white;
}
.comparison-table tr:last-child td {
    border-bottom: none;
}
.comparison-table .highlight {
    color: var(--success);
    font-weight: bold;
}


a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s;
}

ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    border: none;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-accent {
    background-color: var(--accent);
    color: var(--white);
}

.btn-accent:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.btn-outline {
    border: 2px solid var(--white);
    color: var(--white);
}

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

.btn-block {
    display: block;
    width: 100%;
}

/* Navbar */
.navbar {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    height: 70px;
    display: flex;
    align-items: center;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-size: 24px;
    font-weight: 800;
    color: var(--primary);
    display: flex;
    align-items: center;
}

.logo .badge {
    background: var(--accent);
    color: var(--white);
    font-size: 12px;
    padding: 2px 6px;
    border-radius: 4px;
    margin-left: 8px;
    vertical-align: middle;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: var(--gray);
    font-weight: 500;
}

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

.menu-toggle {
    display: none;
    font-size: 24px;
    color: var(--dark);
    cursor: pointer;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    padding-top: 140px;
    padding-bottom: 0;
    position: relative;
    overflow: hidden;
}

.page-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    padding: 120px 0 60px;
    text-align: center;
    margin-bottom: 40px;
}

.page-header h1 {
    color: var(--white);
    font-size: 36px;
    margin-bottom: 10px;
}

.page-header p {
    font-size: 18px;
    opacity: 0.9;
    max-width: 600px;
    margin: 0 auto;
}

.breadcrumb {
    margin-top: 20px;
    font-size: 14px;
    opacity: 0.8;
}

.breadcrumb a {
    color: var(--white);
    text-decoration: underline;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    padding-bottom: 80px;
}

.hero-text {
    flex: 1;
    max-width: 600px;
}

.hero-text .tag {
    background: rgba(255,255,255,0.2);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 14px;
    display: inline-block;
    margin-bottom: 20px;
    backdrop-filter: blur(5px);
}

.hero-text h1 {
    font-size: 48px;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--white);
}

.hero-text .highlight {
    color: var(--accent);
    position: relative;
}

.hero-sub {
    font-size: 18px;
    opacity: 0.9;
    margin-bottom: 30px;
    max-width: 90%;
}

.hero-btns {
    display: flex;
    gap: 15px;
    margin-bottom: 30px;
}

.trust-badges {
    display: flex;
    gap: 20px;
    font-size: 14px;
    opacity: 0.8;
}

.trust-badges i {
    color: #34D399;
    margin-right: 5px;
}

/* Hero Animation */
.pulse {
    animation: pulse-animation 2s infinite;
}

@keyframes pulse-animation {
    0% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.7); }
    70% { box-shadow: 0 0 0 10px rgba(245, 158, 11, 0); }
    100% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0); }
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.platform-mockup {
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.3);
    width: 100%;
    max-width: 500px;
    height: 320px;
    position: relative;
    overflow: hidden;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

.screen-header {
    background: #E5E7EB;
    padding: 10px;
    display: flex;
    gap: 6px;
}

.dot { width: 10px; height: 10px; border-radius: 50%; }
.red { background: #EF4444; }
.yellow { background: #F59E0B; }
.green { background: #10B981; }

.screen-body {
    padding: 20px;
    height: 100%;
    position: relative;
}

.chart-placeholder {
    display: flex;
    align-items: flex-end;
    gap: 15px;
    height: 150px;
    padding: 20px;
    border-bottom: 2px solid #E5E7EB;
    border-left: 2px solid #E5E7EB;
}

.bar {
    width: 30px;
    background: #DBEAFE;
    border-radius: 4px 4px 0 0;
    transition: height 1s;
}

.bar.active {
    background: var(--primary);
}

.ai-bubble {
    position: absolute;
    bottom: 60px;
    right: 20px;
    background: var(--dark);
    color: var(--white);
    padding: 10px 15px;
    border-radius: 20px 20px 0 20px;
    font-size: 13px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    gap: 8px;
    animation: popIn 1s ease-out 0.5s both;
}

@keyframes popIn {
    from { opacity: 0; transform: scale(0.8) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.wave-bottom {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    line-height: 0;
}

/* Segmentation Section */
.segmentation {
    padding: 80px 0;
    background: var(--white);
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 32px;
    margin-bottom: 10px;
}

.section-header p {
    color: var(--gray);
    font-size: 18px;
}

.segment-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.segment-card {
    padding: 40px;
    border-radius: 12px;
    background: var(--light);
    transition: 0.3s;
    border: 1px solid transparent;
}

.segment-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* Male Appeal Design */
.male-appeal {
    border-left: 4px solid var(--primary);
}
.male-appeal .icon-box {
    color: var(--primary);
}

/* Female Appeal Design */
.female-appeal {
    border-left: 4px solid var(--success);
}
.female-appeal .icon-box {
    color: var(--success);
}

.icon-box {
    font-size: 32px;
    margin-bottom: 20px;
}

.feature-list li {
    margin-bottom: 12px;
    color: var(--gray);
    display: flex;
    align-items: center;
    gap: 10px;
}

.feature-list i {
    color: var(--success);
}

/* AI Section */
.ai-section {
    padding: 80px 0;
    background: #F0F9FF;
    overflow: hidden;
}

.ai-section .container {
    display: flex;
    align-items: center;
    gap: 50px;
}

.ai-content {
    flex: 1;
}

.tag-ai {
    background: linear-gradient(90deg, #8B5CF6, #EC4899);
    color: white;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 700;
    margin-bottom: 15px;
    display: inline-block;
}

.ai-features {
    margin-top: 30px;
}

.ai-item {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
}

.ai-item i {
    background: var(--white);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #8B5CF6;
    box-shadow: var(--shadow);
}

.ai-visual {
    flex: 1;
    background: var(--white);
    padding: 20px;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    max-width: 450px;
}

.chat-interface {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.msg {
    display: flex;
    gap: 10px;
    align-items: flex-end;
}

.msg.user {
    flex-direction: row-reverse;
}

.msg .avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.msg.bot .avatar { background: #8B5CF6; color: white; }
.msg.user .avatar { background: #E5E7EB; color: #6B7280; }

.msg .text {
    background: #F3F4F6;
    padding: 10px 15px;
    border-radius: 12px;
    font-size: 14px;
    max-width: 80%;
    line-height: 1.4;
}

.msg.bot .text {
    border-bottom-left-radius: 2px;
}
.msg.user .text {
    background: var(--primary);
    color: white;
    border-bottom-right-radius: 2px;
}

.dot-typing {
    width: 6px;
    height: 6px;
    background: #9CA3AF;
    border-radius: 50%;
    display: inline-block;
    animation: typing 1.4s infinite ease-in-out both;
}
.dot-typing:nth-child(1) { animation-delay: -0.32s; }
.dot-typing:nth-child(2) { animation-delay: -0.16s; }

@keyframes typing {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1); }
}

/* Core Advantages */
.core-advantages {
    padding: 60px 0;
    background: var(--white);
}
.advantage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    text-align: center;
}
.advantage-card {
    padding: 20px;
}
.advantage-icon {
    font-size: 48px;
    color: var(--primary);
    margin-bottom: 20px;
}

/* Detailed Customer Cases */
.case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}
.case-card {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    text-align: left;
}
.case-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    border-bottom: 1px solid #eee;
    padding-bottom: 15px;
}
.case-logo {
    width: 50px;
    height: 50px;
    background: #F3F4F6;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: var(--secondary);
    font-size: 12px;
}
.case-stat {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    margin: 10px 0;
}
.case-quote {
    font-style: italic;
    color: var(--gray);
    background: #F9FAFB;
    padding: 15px;
    border-radius: 8px;
    margin-top: 15px;
    font-size: 14px;
}

/* Selection Guide */
.selection-guide {
    padding: 80px 0;
    background: #F8FAFC;
}
.selection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}
.selection-card {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border-top: 4px solid var(--secondary);
    text-align: center;
    transition: 0.3s;
}
.selection-card:hover {
    transform: translateY(-5px);
}
.selection-card h3 {
    margin-bottom: 10px;
}
.selection-card .tag {
    background: #EEF2FF;
    color: var(--primary);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
    margin-bottom: 15px;
    display: inline-block;
}

/* Features Grid */
.features {
    padding: 80px 0;
    background: var(--white);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-box {
    padding: 30px;
    border-radius: 8px;
    border: 1px solid #E5E7EB;
    text-align: center;
    transition: 0.3s;
}

.feature-box:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
}

.feature-box i {
    font-size: 32px;
    color: var(--primary);
    margin-bottom: 20px;
}

/* Social Proof */
.cases {
    padding: 60px 0;
    background: #FAFAFA;
    text-align: center;
}

.logo-grid {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    margin: 40px 0;
    opacity: 0.6;
}

.client-logo {
    font-weight: 700;
    font-size: 20px;
    color: var(--gray);
}

.testimonial {
    max-width: 800px;
    margin: 0 auto;
    font-style: italic;
    color: var(--dark);
}

.testimonial blockquote {
    font-size: 20px;
    margin-bottom: 20px;
}

/* Pricing */
.pricing {
    padding: 80px 0;
    background: var(--white);
}

.pricing-card {
    background: var(--white);
    border-radius: 12px;
    padding: 40px;
    max-width: 500px;
    margin: 0 auto;
    box-shadow: var(--shadow-lg);
    border-top: 5px solid var(--accent);
    text-align: center;
}

.price {
    margin: 30px 0;
    color: var(--dark);
}

.price .amount {
    font-size: 36px;
    font-weight: 700;
}

.benefits {
    text-align: left;
    margin-bottom: 30px;
}

.benefits li {
    margin-bottom: 15px;
}

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

.contact-wrapper {
    display: flex;
    gap: 50px;
    align-items: flex-start;
}

.contact-info {
    flex: 1;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    font-size: 18px;
}

.contact-form-box {
    flex: 1;
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    color: var(--dark);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid #D1D5DB;
    border-radius: 6px;
    font-size: 16px;
}

.form-note {
    font-size: 12px;
    color: var(--gray);
    text-align: center;
    margin-top: 10px;
}

/* Footer */
footer {
    background: #111827;
    color: #9CA3AF;
    padding: 60px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-col h4 {
    color: var(--white);
    margin-bottom: 20px;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col a:hover {
    color: var(--white);
}

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #374151;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
        padding-top: 0;
    }

    .hero-text h1 {
        font-size: 32px;
    }

    .hero-btns {
        justify-content: center;
    }

    .trust-badges {
        justify-content: center;
    }

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

    .ai-section .container {
        flex-direction: column;
    }

    .contact-wrapper {
        flex-direction: column;
    }

    .nav-links, .nav-cta {
        display: none; /* Hide for simple mobile view, JS can toggle */
    }

    .menu-toggle {
        display: block;
    }

    .navbar .container {
        padding: 0 20px;
    }
}