:root {
    --primary-color: #ec4899;
    --secondary-color: #db2777;
    --accent-color: #f472b6;
    --dark-color: #1f2937;
    --text-color: #4b5563;
    --light-color: #fdf2f8;
    --white: #ffffff;
    --shadow: 0 4px 6px -1px rgba(236, 72, 153, 0.15);
    --shadow-lg: 0 10px 15px -3px rgba(236, 72, 153, 0.2);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: linear-gradient(135deg, #fdf2f8 0%, #fce7f3 50%, #fbcfe8 100%);
    min-height: 100vh;
}

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

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    z-index: 1000;
    padding: 15px 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--primary-color);
    text-decoration: none;
    letter-spacing: -1px;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

nav a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 20px 80px;
    text-align: center;
}

.hero-content {
    max-width: 800px;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--dark-color);
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero h1 span {
    display: block;
    font-size: 1.8rem;
    font-weight: 400;
    color: var(--primary-color);
    margin-top: 10px;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-color);
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    box-shadow: 0 4px 15px rgba(236, 72, 153, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(236, 72, 153, 0.5);
}

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

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

/* Section Styles */
section {
    padding: 100px 0;
}

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

.section-title h2 {
    font-size: 2.5rem;
    color: var(--dark-color);
    margin-bottom: 15px;
}

.section-title p {
    font-size: 1.1rem;
    color: var(--text-color);
}

/* Waterfall Grid */
.waterfall-grid {
    column-count: 3;
    column-gap: 20px;
}

.waterfall-item {
    break-inside: avoid;
    margin-bottom: 20px;
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.waterfall-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

.waterfall-content {
    padding: 25px;
}

.waterfall-content h3 {
    font-size: 1.3rem;
    color: var(--dark-color);
    margin-bottom: 10px;
}

.waterfall-content p {
    color: var(--text-color);
    font-size: 0.95rem;
}

/* Stats Section */
.stats-section {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 80px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.stat-item {
    text-align: center;
    color: var(--white);
}

.stat-number {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

/* Card Grid */
.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.float-card {
    background: var(--white);
    border-radius: 16px;
    padding: 35px 30px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.float-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transition: var(--transition);
}

.float-card:hover::before {
    transform: scaleX(1);
}

.float-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.float-card h3 {
    font-size: 1.3rem;
    color: var(--dark-color);
    margin-bottom: 12px;
}

.float-card p {
    color: var(--text-color);
    font-size: 0.95rem;
}

/* Contact Section */
.contact-section {
    background: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.contact-card {
    text-align: center;
    padding: 40px 30px;
    border-radius: 16px;
    background: var(--light-color);
    transition: var(--transition);
}

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

.contact-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.contact-card h3 {
    font-size: 1.2rem;
    color: var(--dark-color);
    margin-bottom: 10px;
}

.contact-card p {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.1rem;
}

/* Footer */
footer {
    background: var(--dark-color);
    color: var(--white);
    text-align: center;
    padding: 30px 0;
}

footer p {
    opacity: 0.8;
}

/* Features List */
.features-list {
    max-width: 800px;
    margin: 0 auto;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 25px;
    background: var(--white);
    border-radius: 12px;
    margin-bottom: 15px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.feature-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.feature-content h3 {
    color: var(--dark-color);
    margin-bottom: 8px;
}

.feature-content p {
    color: var(--text-color);
    font-size: 0.95rem;
}

/* Steps */
.steps-container {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    position: relative;
}

.steps-container::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 15%;
    right: 15%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    z-index: 0;
}

.step-item {
    flex: 1;
    text-align: center;
    position: relative;
    z-index: 1;
}

.step-number {
    width: 80px;
    height: 80px;
    background: var(--white);
    border: 3px solid var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--primary-color);
    margin: 0 auto 20px;
    transition: var(--transition);
}

.step-item:hover .step-number {
    background: var(--primary-color);
    color: var(--white);
}

.step-item h3 {
    color: var(--dark-color);
    margin-bottom: 10px;
}

.step-item p {
    color: var(--text-color);
    font-size: 0.9rem;
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 1024px) {
    .waterfall-grid {
        column-count: 2;
    }

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

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

@media (max-width: 768px) {
    .waterfall-grid {
        column-count: 1;
    }

    nav ul {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        box-shadow: var(--shadow);
    }

    nav ul.active {
        display: flex;
    }

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

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero h1 span {
        font-size: 1.4rem;
    }

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

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

    .steps-container {
        flex-direction: column;
    }

    .steps-container::before {
        display: none;
    }

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

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }

    .section-title h2 {
        font-size: 1.8rem;
    }

    .stat-number {
        font-size: 2rem;
    }
}