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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #1a1a2e;
    background-color: #fff;
    overflow-x: hidden;
}

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

/* ========== 炫酷进入动画 ========== */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #0a0a1a;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.8s ease, visibility 0.8s ease;
}

#preloader.fade-out {
    opacity: 0;
    visibility: hidden;
}

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

.logo-animate {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 30px;
}

.letter {
    font-size: 80px;
    font-weight: 800;
    color: #f5a623;
    animation: bounceLetter 0.6s ease forwards;
    opacity: 0;
    transform: translateY(30px);
}

.letter:nth-child(1) { animation-delay: 0.1s; }
.letter:nth-child(2) { animation-delay: 0.3s; }

@keyframes bounceLetter {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    50% {
        opacity: 1;
        transform: translateY(-10px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.loader-bar {
    width: 200px;
    height: 3px;
    background: rgba(255,255,255,0.2);
    border-radius: 3px;
    margin: 20px auto;
    overflow: hidden;
}

.loader-progress {
    width: 0%;
    height: 100%;
    background: #f5a623;
    border-radius: 3px;
    animation: loadProgress 1.8s ease forwards;
}

@keyframes loadProgress {
    0% { width: 0%; }
    30% { width: 40%; }
    60% { width: 75%; }
    100% { width: 100%; }
}

.loader-text {
    color: #fff;
    font-size: 14px;
    letter-spacing: 3px;
    text-transform: uppercase;
    opacity: 0;
    animation: fadeInText 0.5s ease 0.8s forwards;
}

@keyframes fadeInText {
    to {
        opacity: 0.7;
    }
}

/* ========== 导航栏 ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 15px 0;
    transition: all 0.3s ease;
    box-shadow: 0 2px 20px rgba(0,0,0,0.05);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    font-size: 24px;
    font-weight: 700;
}

.logo-icon {
    font-size: 28px;
}

.logo-text {
    background: linear-gradient(135deg, #1a1a2e, #f5a623);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

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

.nav-menu a {
    text-decoration: none;
    color: #1a1a2e;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: #f5a623;
}

.nav-toggle {
    display: none;
    font-size: 24px;
    cursor: pointer;
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: #fff;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
        padding: 30px 0;
        gap: 20px;
    }
    .nav-menu.active {
        left: 0;
    }
    .nav-toggle {
        display: block;
    }
}

/* ========== Hero区域 ========== */
.hero {
    height: 100vh;
    position: relative;
    overflow: hidden;
}

.hero-slider {
    height: 100%;
}

.slide {
    height: 100%;
    background-size: cover;
    background-position: center;
    position: relative;
    display: flex;
    align-items: center;
}

.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0,0,0,0.5) 0%, rgba(0,0,0,0.3) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    color: #fff;
    text-align: center;
    animation: fadeInUp 1s ease;
}

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

.hero-title {
    font-size: 56px;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 30px;
    border-radius: 40px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-primary {
    background: #f5a623;
    color: #1a1a2e;
}

.btn-primary:hover {
    background: #e09510;
    transform: translateY(-2px);
}

.btn-outline {
    border: 2px solid #fff;
    color: #fff;
}

.btn-outline:hover {
    background: #fff;
    color: #1a1a2e;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: #fff;
    font-size: 14px;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* ========== 通用区块 ========== */
.section {
    padding: 80px 0;
}

.bg-light {
    background: #f8f9fa;
}

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

.section-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 15px;
    color: #1a1a2e;
}

.section-subtitle {
    font-size: 18px;
    color: #666;
}

/* ========== 产品网格 ========== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.product-card {
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    transition: all 0.3s;
    text-align: center;
    padding-bottom: 20px;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.product-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 1;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

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

.product-overlay {
    position: absolute;
    bottom: -50px;
    left: 0;
    width: 100%;
    text-align: center;
    transition: bottom 0.3s;
}

.product-card:hover .product-overlay {
    bottom: 20px;
}

.btn-small {
    background: #f5a623;
    color: #1a1a2e;
    padding: 8px 20px;
    border-radius: 30px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
}

.product-card h3 {
    margin: 15px 0 5px;
    font-size: 18px;
}

.product-card p {
    color: #666;
    font-size: 14px;
}

/* ========== 工厂网格 ========== */
.factory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.factory-card {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
}

.factory-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform 0.5s;
}

.factory-card:hover img {
    transform: scale(1.05);
}

.factory-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    color: #fff;
    padding: 20px;
    transform: translateY(100%);
    transition: transform 0.3s;
}

.factory-card:hover .factory-info {
    transform: translateY(0);
}

/* ========== Simple About模块 ========== */
.simple-about {
    padding: 80px 0;
}

.about-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-badge {
    display: inline-block;
    background: #f5a62320;
    color: #f5a623;
    padding: 5px 15px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
}

.about-content h2 {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.about-content p {
    color: #555;
    margin-bottom: 20px;
    line-height: 1.7;
}

.btn-link {
    color: #f5a623;
    text-decoration: none;
    font-weight: 600;
    transition: gap 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.btn-link:hover {
    gap: 10px;
}

.about-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

@media (max-width: 768px) {
    .about-block {
        grid-template-columns: 1fr;
    }
    .hero-title {
        font-size: 36px;
    }
    .section-title {
        font-size: 28px;
    }
}

/* ========== 页脚 ========== */
.footer {
    background: #1a1a2e;
    color: #aaa;
    padding: 60px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h3, .footer-col h4 {
    color: #fff;
    margin-bottom: 20px;
}

.footer-col ul {
    list-style: none;
}

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

.footer-col a {
    color: #aaa;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-col a:hover {
    color: #f5a623;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    color: #fff;
    font-size: 20px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #333;
    font-size: 14px;
}