:root {
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8F9FA;
    --text-primary: #1A1A1A;
    --text-secondary: #666666;
    --accent: #E85D04;
    --accent-hover: #D14D00;
    --dark: #2D3436;
    --border: #E9ECEF;
    --shadow: rgba(0, 0, 0, 0.06);
    --shadow-hover: rgba(0, 0, 0, 0.12);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'DM Sans', sans-serif;
    color: var(--text-primary);
    background: var(--bg-primary);
    line-height: 1.6;
}

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

h1, h2, h3 {
    font-family: 'Playfair Display', serif;
    font-weight: 600;
}

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

.btn {
    display: inline-block;
    padding: 16px 32px;
    border-radius: 50px;
    font-weight: 500;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

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

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

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

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 80px;
    background: var(--bg-primary);
    z-index: 1000;
    transition: box-shadow 0.3s ease;
}

.navbar.scrolled {
    box-shadow: 0 2px 20px var(--shadow);
}

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

.logo {
    font-family: 'Playfair Display', serif;
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.logo img {
    height: 40px;
    width: auto;
    vertical-align: middle;
    margin-right: 8px;
}

.logo span {
    color: var(--accent);
}

.nav-links {
    display: flex;
    gap: 40px;
    list-style: none;
}

.nav-links a {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.nav-links a svg {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    transition: all 0.3s ease;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s ease;
}

.nav-links a:hover {
    color: var(--accent);
    background: rgba(232, 93, 4, 0.08);
}

.nav-links a:hover svg {
    stroke: var(--accent);
    transform: scale(1.1);
}

.nav-links a:hover::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background: linear-gradient(135deg, #FFFFFF 0%, #F8F9FA 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(232, 93, 4, 0.03) 0%, transparent 70%);
    border-radius: 50%;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-content {
    animation: fadeInUp 1s ease;
}

.hero-badge {
    display: inline-block;
    padding: 8px 16px;
    background: var(--bg-secondary);
    border-radius: 50px;
    font-size: 14px;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 72px;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.hero h1 span {
    color: var(--accent);
}

.hero p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 480px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
}

.hero-visual {
    position: relative;
    animation: fadeInRight 1s ease 0.3s both;
}

.hero-image {
    width: 100%;
    height: 600px;
    background: linear-gradient(145deg, #f0f0f0 0%, #e0e0e0 100%);
    background-size: cover;
    background-position: center;
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-image::before {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    border: 3px solid var(--accent);
    border-radius: 50%;
    opacity: 0.3;
}

.hero-image::after {
    content: 'Design';
    font-family: 'Playfair Display', serif;
    font-size: 80px;
    color: var(--accent);
    opacity: 0.15;
}

.hero-stats {
    position: absolute;
    bottom: -30px;
    left: -30px;
    background: white;
    padding: 24px 32px;
    border-radius: 16px;
    box-shadow: 0 10px 40px var(--shadow);
    display: flex;
    gap: 40px;
}

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

.stat-item .number {
    font-family: 'Playfair Display', serif;
    font-size: 36px;
    font-weight: 700;
    color: var(--accent);
}

.stat-item .label {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Services Section */
.services {
    padding: 120px 0;
    background: var(--bg-primary);
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-header h2 {
    font-size: 48px;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.service-card {
    background: var(--bg-primary);
    padding: 40px 32px;
    border-radius: 20px;
    border: 1px solid var(--border);
    transition: all 0.4s ease;
    text-align: center;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px var(--shadow-hover);
    border-color: transparent;
}

.service-icon {
    width: 72px;
    height: 72px;
    background: var(--bg-secondary);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    transition: all 0.3s ease;
}

.service-card:hover .service-icon {
    background: var(--accent);
}

.service-icon svg {
    width: 32px;
    height: 32px;
    stroke: var(--accent);
    transition: stroke 0.3s ease;
}

.service-card:hover .service-icon svg {
    stroke: white;
}

.service-card h3 {
    font-size: 22px;
    margin-bottom: 12px;
    font-family: 'DM Sans', sans-serif;
    font-weight: 600;
}

.service-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Works Section */
.works {
    padding: 120px 0;
    background: var(--bg-secondary);
}

.works-filter {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--text-primary);
    color: white;
    border-color: var(--text-primary);
}

.works-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.work-card {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    aspect-ratio: 4/3;
    cursor: pointer;
    background: var(--bg-primary);
}

.work-image {
    width: 100%;
    height: 100%;
    background: linear-gradient(145deg, #e8e8e8 0%, #d0d0d0 100%);
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.5s ease;
}

.work-card:hover .work-image {
    transform: scale(1.05);
}

.work-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 50%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 32px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.work-card:hover .work-overlay {
    opacity: 1;
}

.work-overlay h3 {
    color: white;
    font-size: 24px;
    font-family: 'DM Sans', sans-serif;
    font-weight: 600;
    margin-bottom: 8px;
}

.work-overlay p {
    color: rgba(255,255,255,0.8);
    font-size: 14px;
}

/* About Section */
.about {
    padding: 120px 0;
    background: var(--bg-primary);
}

.about .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image-main {
    width: 100%;
    height: 500px;
    background: linear-gradient(145deg, #f0f0f0 0%, #e0e0e0 100%);
    background-size: cover;
    background-position: center;
    border-radius: 24px;
}

.about-image-accent {
    position: absolute;
    bottom: -30px;
    right: -30px;
    width: 200px;
    height: 200px;
    background: var(--accent);
    border-radius: 24px;
    opacity: 0.2;
}

.about-content h2 {
    font-size: 48px;
    margin-bottom: 24px;
    line-height: 1.2;
}

.about-content > p {
    font-size: 17px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.8;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 40px;
}

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

.about-feature svg {
    width: 24px;
    height: 24px;
    stroke: var(--accent);
    flex-shrink: 0;
}

.about-feature span {
    font-size: 15px;
    font-weight: 500;
}

/* Testimonials Section */
.testimonials {
    padding: 120px 0;
    background: var(--bg-secondary);
}

.testimonials-slider {
    display: flex;
    gap: 32px;
    overflow-x: auto;
    padding-bottom: 20px;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
}

.testimonial-card {
    min-width: 400px;
    background: var(--bg-primary);
    padding: 40px;
    border-radius: 20px;
    scroll-snap-align: start;
}

.testimonial-quote {
    font-size: 48px;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 20px;
    opacity: 0.3;
}

.testimonial-text {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 16px;
}

.testimonial-avatar {
    width: 56px;
    height: 56px;
    background: linear-gradient(145deg, var(--accent) 0%, #f0a080 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 20px;
}

.testimonial-info h4 {
    font-size: 16px;
    font-weight: 600;
    font-family: 'DM Sans', sans-serif;
}

.testimonial-info p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* Contact Section */
.contact {
    padding: 120px 0;
    background: var(--bg-primary);
}

.contact .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.contact-info h2 {
    font-size: 48px;
    margin-bottom: 24px;
}

.contact-info > p {
    font-size: 17px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.contact-item-icon {
    width: 48px;
    height: 48px;
    background: var(--bg-secondary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-item-icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--accent);
}

.contact-item-text h4 {
    font-size: 15px;
    font-weight: 600;
    font-family: 'DM Sans', sans-serif;
}

.contact-item-text p {
    font-size: 15px;
    color: var(--text-secondary);
}

.contact-link {
    font-size: 15px;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.contact-link:hover {
    color: var(--accent);
}

.contact-link::after {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    background-size: contain;
    background-repeat: no-repeat;
    opacity: 0;
    transform: translateX(-4px);
    transition: all 0.3s ease;
}

.contact-link:hover::after {
    opacity: 1;
    transform: translateX(0);
}

a[href^="tel:"].contact-link::after {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23E85D04' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M22 16.92v3a2 2 0 0 1-2.18 2 19.79 19.79 0 0 1-8.63-3.07 19.5 19.5 0 0 1-6-6 19.79 19.79 0 0 1-3.07-8.67A2 2 0 0 1 4.11 2h3a2 2 0 0 1 2 1.72 12.84 12.84 0 0 0 .7 2.81 2 2 0 0 1-.45 2.11L8.09 9.91a16 16 0 0 0 6 6l1.27-1.27a2 2 0 0 1 2.11-.45 12.84 12.84 0 0 0 2.81.7A2 2 0 0 1 22 16.92z'%3E%3C/path%3E%3C/svg%3E");
}

a[href^="mailto:"].contact-link::after {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23E85D04' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 4h16c1.1 0 2 .9 2 2v12c0 1.1-.9 2-2 2H4c-1.1 0-2-.9-2-2V6c0-1.1.9-2 2-2z'%3E%3C/path%3E%3Cpolyline points='22,6 12,13 2,6'%3E%3C/polyline%3E%3C/svg%3E");
}

a[href*="map.baidu.com"].contact-link::after {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23E85D04' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M21 10c0 7-9 13-9 13s-9-6-9-13a9 9 0 0 1 18 0z'%3E%3C/path%3E%3Ccircle cx='12' cy='10' r='3'%3E%3C/circle%3E%3C/svg%3E");
}

.contact-form {
    background: var(--bg-secondary);
    padding: 48px;
    border-radius: 24px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 16px 20px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 12px;
    font-size: 15px;
    font-family: 'DM Sans', sans-serif;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(232, 93, 4, 0.1);
}

.form-group textarea {
    min-height: 140px;
    resize: vertical;
}

.contact-form .btn {
    width: 100%;
}

.contact-form .btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* Footer */
.footer {
    padding: 60px 0 40px;
    background: var(--text-primary);
    color: white;
}

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

.footer-logo {
    font-family: 'Playfair Display', serif;
    font-size: 24px;
    font-weight: 700;
}

.footer-logo span {
    color: var(--accent);
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
}

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

.footer-copyright {
    font-size: 14px;
    color: rgba(255,255,255,0.4);
}

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

@keyframes fadeOut {
    from {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    to {
        opacity: 0;
        transform: translateX(-50%) translateY(10px);
    }
}

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

.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: all 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    padding: 24px;
    box-shadow: 0 10px 40px var(--shadow);
    transform: translateY(-100%);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 999;
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
}

.mobile-menu ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.mobile-menu a {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
}

.mobile-menu a svg {
    width: 20px;
    height: 20px;
    stroke: var(--accent);
    flex-shrink: 0;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero h1 {
        font-size: 56px;
    }

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

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

    .about .container,
    .contact .container {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero p {
        margin: 0 auto 40px;
    }

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

    .hero-visual {
        display: none;
    }
}

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

    .menu-toggle {
        display: flex;
    }

    .mobile-menu {
        display: block;
    }

    .hero h1 {
        font-size: 42px;
    }

    .hero-stats {
        position: relative;
        bottom: auto;
        left: auto;
        margin-top: 40px;
        justify-content: center;
    }

    .section-header h2,
    .about-content h2,
    .contact-info h2 {
        font-size: 32px;
    }

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

    .services,
    .works,
    .about,
    .testimonials,
    .contact {
        padding: 80px 0;
    }

    .testimonial-card {
        min-width: 300px;
    }

    .about-features {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: 32px;
    }

    .footer .container {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}