/* Website 65 - Parallax Scrolling Style */
:root {
    --primary-color: #e67e22;
    --secondary-color: #d35400;
    --accent-color: #16a085;
    --dark-color: #2c3e50;
    --text-color: #34495e;
    --white: #ffffff;
    --shadow: 0 10px 40px rgba(230, 126, 34, 0.15);
    --transition: all 0.4s ease;
    --gradient: linear-gradient(135deg, #e67e22 0%, #d35400 100%);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--white);
    color: var(--text-color);
    line-height: 1.8;
    overflow-x: hidden;
}

/* Header */
header {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--primary-color);
    text-decoration: none;
    letter-spacing: -0.5px;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 8px;
}

nav a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    padding: 10px 18px;
    border-radius: 25px;
    transition: var(--transition);
    font-size: 0.9rem;
}

nav a:hover,
nav a.active {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
}

.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: 3px;
    transition: var(--transition);
}

/* Parallax Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(rgba(44, 62, 80, 0.7), rgba(44, 62, 80, 0.7)),
                url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><rect fill="%23e67e22" width="100" height="100"/><circle fill="%23d35400" cx="75" cy="25" r="20"/><circle fill="%23f39c12" cx="25" cy="75" r="15"/></svg>');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    padding: 120px 0 80px;
    position: relative;
}

.hero-content {
    text-align: center;
    color: var(--white);
    max-width: 800px;
    padding: 0 20px;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    line-height: 1.2;
    text-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

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

.hero p {
    font-size: 1.15rem;
    opacity: 0.9;
    margin-bottom: 35px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

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

.btn {
    padding: 14px 35px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-block;
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
    box-shadow: 0 8px 25px rgba(230, 126, 34, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(230, 126, 34, 0.5);
}

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

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

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

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

.section-title h2 {
    font-size: 2.4rem;
    color: var(--dark-color);
    margin-bottom: 15px;
    display: inline-block;
    position: relative;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 70px;
    height: 4px;
    background: var(--gradient);
    border-radius: 2px;
}

.section-title p {
    color: var(--text-color);
    font-size: 1.1rem;
    margin-top: 20px;
}

/* Feature Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 5px 30px rgba(0,0,0,0.05);
    border-bottom: 4px solid transparent;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow);
    border-bottom-color: var(--primary-color);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #fff5eb 0%, #ffe8d6 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2.5rem;
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    background: var(--gradient);
}

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

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

/* Parallax Section */
.parallax-section {
    background: linear-gradient(rgba(230, 126, 34, 0.9), rgba(211, 84, 0, 0.9)),
                url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><rect fill="%23e67e22" width="100" height="100"/><circle fill="%23d35400" cx="80" cy="20" r="25"/></svg>');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--white);
    padding: 120px 0;
}

.parallax-section .section-title h2 {
    color: var(--white);
}

.parallax-section .section-title p {
    color: rgba(255,255,255,0.85);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.stat-item {
    text-align: center;
    padding: 30px 20px;
    background: rgba(255,255,255,0.15);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.stat-item:hover {
    background: rgba(255,255,255,0.25);
    transform: translateY(-5px);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 10px;
}

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

/* Testimonials */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.testimonial-item {
    background: var(--white);
    padding: 35px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    position: relative;
    transition: var(--transition);
}

.testimonial-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow);
}

.testimonial-item::before {
    content: '"';
    position: absolute;
    top: 20px;
    left: 25px;
    font-size: 5rem;
    color: var(--primary-color);
    opacity: 0.15;
    font-family: Georgia, serif;
    line-height: 1;
}

.testimonial-item p {
    font-style: italic;
    color: var(--text-color);
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

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

.author-avatar {
    width: 50px;
    height: 50px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
}

.author-info strong {
    color: var(--dark-color);
    display: block;
}

.author-info span {
    color: var(--primary-color);
    font-size: 0.85rem;
}

/* Contact Section */
.contact-section {
    background: linear-gradient(135deg, #fef9f3 0%, #fdebd0 100%);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-item {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

.contact-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow);
}

.contact-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
    color: var(--white);
}

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

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

/* Footer */
footer {
    background: var(--dark-color);
    color: rgba(255,255,255,0.7);
    padding: 60px 0 30px;
    text-align: center;
}

footer p {
    padding: 25px 0;
    border-top: 1px solid rgba(255,255,255,0.1);
    margin-top: 30px;
}

/* Responsive */
@media (max-width: 768px) {
    nav ul {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 10px;
    }

    nav ul.active {
        display: flex;
    }

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

    .hero h1 {
        font-size: 2.2rem;
    }

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

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

    .parallax-section, .hero {
        background-attachment: scroll;
    }
}