:root {
    --primary: #e65100;
    --primary-dark: #bf360c;
    --secondary: #d4a84b;
    --dark: #1a1a1a;
    --light: #f5f0e6;
    --gray: #666;
    --shadow: 0 4px 20px rgba(0,0,0,0.15);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Serif SC', 'Microsoft YaHei', sans-serif;
    background: var(--light);
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
}

.btn {
    display: inline-block;
    padding: 12px 32px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(230, 81, 0, 0.4);
}

.btn-outline {
    background: transparent;
    border-color: #fff;
    color: #fff;
}

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

.btn-block {
    width: 100%;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(10px);
    padding: 15px 0;
    transition: var(--transition);
}

.header.scrolled {
    background: rgba(26, 26, 26, 0.98);
    padding: 10px 0;
    box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

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

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

.logo-text {
    font-size: 24px;
    font-weight: 700;
    color: var(--secondary);
    font-family: 'ZCOOL XiaoWei', serif;
}

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

.nav-link {
    color: #fff;
    font-size: 15px;
    position: relative;
    padding: 5px 0;
}

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

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

.nav-link:hover {
    color: var(--secondary);
}

.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: #fff;
    border-radius: 2px;
    transition: var(--transition);
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    overflow: hidden;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d1810 50%, #1a1a1a 100%);
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 80%, rgba(230, 81, 0, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(212, 168, 75, 0.1) 0%, transparent 50%);
}

.hero-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--secondary);
    border-radius: 50%;
    opacity: 0.6;
    animation: float 8s infinite;
}

.particle:nth-child(1) { left: 10%; top: 20%; animation-delay: 0s; }
.particle:nth-child(2) { left: 30%; top: 60%; animation-delay: 1s; }
.particle:nth-child(3) { left: 60%; top: 30%; animation-delay: 2s; }
.particle:nth-child(4) { left: 80%; top: 70%; animation-delay: 3s; }
.particle:nth-child(5) { left: 50%; top: 80%; animation-delay: 4s; }

@keyframes float {
    0%, 100% { transform: translateY(0) scale(1); opacity: 0.6; }
    50% { transform: translateY(-30px) scale(1.5); opacity: 0.3; }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    margin-bottom: 20px;
}

.title-cn {
    display: block;
    font-size: clamp(48px, 10vw, 96px);
    font-weight: 700;
    background: linear-gradient(135deg, var(--secondary), #fff, var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-family: 'ZCOOL XiaoWei', serif;
    text-shadow: 0 0 60px rgba(212, 168, 75, 0.5);
}

.title-sub {
    display: block;
    font-size: clamp(20px, 4vw, 32px);
    color: var(--secondary);
    margin-top: 10px;
    letter-spacing: 8px;
}

.hero-desc {
    font-size: 18px;
    color: rgba(255,255,255,0.8);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-btns {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    flex-wrap: wrap;
}

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

.stat-num {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: var(--secondary);
}

.stat-label {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
}

.section {
    padding: 100px 0;
}

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

.section-title {
    font-size: clamp(32px, 5vw, 48px);
    color: var(--dark);
    position: relative;
    display: inline-block;
    margin-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 2px;
}

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

.about {
    background: #fff;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.about-card {
    background: linear-gradient(145deg, #fff, var(--light));
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid rgba(212, 168, 75, 0.1);
}

.about-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.about-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.about-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--dark);
}

.about-card p {
    color: var(--gray);
    line-height: 1.8;
}

.food {
    background: linear-gradient(180deg, var(--light) 0%, #fff 100%);
}

.food-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.food-tab {
    padding: 10px 25px;
    border: 2px solid var(--secondary);
    background: transparent;
    color: var(--dark);
    border-radius: 25px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    transition: var(--transition);
}

.food-tab:hover,
.food-tab.active {
    background: var(--secondary);
    color: #fff;
}

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

.food-card {
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.food-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

.food-img {
    height: 200px;
    overflow: hidden;
}

.food-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.food-card:hover .food-img img {
    transform: scale(1.1);
}

.food-info {
    padding: 25px;
}

.food-info h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: var(--dark);
}

.food-info p {
    color: var(--gray);
    font-size: 14px;
    margin-bottom: 15px;
}

.food-tag {
    display: inline-block;
    padding: 5px 15px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 600;
}

.business {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d1810 100%);
    color: #fff;
}

.business .section-title {
    color: #fff;
}

.business .section-title::after {
    background: linear-gradient(90deg, var(--secondary), var(--primary));
}

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

.business-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: start;
}

.business-info h3 {
    font-size: 28px;
    margin-bottom: 30px;
    color: var(--secondary);
}

.advantage-list {
    list-style: none;
}

.advantage-list li {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
    padding: 20px;
    background: rgba(255,255,255,0.05);
    border-radius: 15px;
    border: 1px solid rgba(212, 168, 75, 0.2);
}

.advantage-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.advantage-list strong {
    display: block;
    font-size: 18px;
    margin-bottom: 5px;
    color: var(--secondary);
}

.advantage-list p {
    color: rgba(255,255,255,0.7);
    font-size: 14px;
}

.business-form-wrapper {
    background: #fff;
    padding: 40px;
    border-radius: 20px;
}

.business-form-wrapper h3 {
    font-size: 24px;
    margin-bottom: 30px;
    color: var(--dark);
    text-align: center;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark);
    font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 18px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 15px;
    transition: var(--transition);
    font-family: inherit;
}

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

.form-group textarea {
    resize: vertical;
}

.contact {
    background: #fff;
}

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

.contact-card {
    text-align: center;
    padding: 40px 30px;
    background: var(--light);
    border-radius: 20px;
    transition: var(--transition);
}

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

.contact-icon {
    font-size: 40px;
    margin-bottom: 20px;
}

.contact-card h4 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--dark);
}

.contact-card p {
    color: var(--gray);
    line-height: 1.8;
}

.footer {
    background: var(--dark);
    color: rgba(255,255,255,0.7);
    padding: 40px 0;
}

.footer-content {
    text-align: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-logo span {
    font-size: 20px;
    color: var(--secondary);
    font-family: 'ZCOOL XiaoWei', serif;
}

.footer-text {
    margin-bottom: 20px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

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

.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: #fff;
    padding: 50px;
    border-radius: 20px;
    text-align: center;
    max-width: 400px;
    position: relative;
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from { transform: scale(0.8); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 28px;
    cursor: pointer;
    color: var(--gray);
}

.modal-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #4caf50, #2e7d32);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    margin: 0 auto 20px;
}

.modal-content h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--dark);
}

.modal-content p {
    color: var(--gray);
}

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
}

@media (max-width: 768px) {
    .nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--dark);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
    }

    .nav.active {
        display: flex;
    }

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

    .hero-stats {
        gap: 30px;
    }

    .business-content {
        grid-template-columns: 1fr;
    }

    .hero-btns {
        flex-direction: column;
        align-items: center;
    }
}

@media print {
    .header, .back-to-top, .modal {
        display: none;
    }
}