:root {
    --bg-black: #0a0a0a;
    --card-dark: #151515;
    --gold: #d4af37;
    --gold-light: #f1e5ac;
    --gold-dim: #c5a059;
    --text-main: #e0e0e0;
    --text-dim: #999999;
    --white: #ffffff;
    --transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-main);
    background-color: var(--bg-black);
    overflow-x: hidden;
}

h1, h2, h3, h4, .serif {
    font-family: 'Cormorant Garamond', serif;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.bg-dark {
    background-color: #050505;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(212, 175, 55, 0.1);
    transition: var(--transition);
}

.navbar.scrolled {
    padding: 10px 0;
    background: rgba(10, 10, 10, 0.95);
    box-shadow: 0 5px 20px rgba(0,0,0,0.5);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

.logo {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: var(--gold);
}

.logo-text {
    font-size: 24px;
    font-weight: 600;
    letter-spacing: 2px;
}

.logo-sub {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 4px;
    color: var(--text-dim);
}

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

.nav-links a {
    text-decoration: none;
    color: var(--text-main);
    font-size: 14px;
    letter-spacing: 2px;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--gold);
    transition: var(--transition);
}

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

.btn-online {
    padding: 8px 20px;
    border: 1px solid var(--gold);
    color: var(--gold);
    text-decoration: none;
    border-radius: 20px;
    font-size: 13px;
    transition: var(--transition);
}

.btn-online:hover {
    background: var(--gold);
    color: var(--bg-black);
}

/* 英雄区 */
.hero-section {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: -1;
    transform: scale(1.1);
    animation: zoomOut 20s infinite alternate;
}

@keyframes zoomOut {
    from { transform: scale(1.1); }
    to { transform: scale(1); }
}

.hero-content h1 {
    font-size: 5vw;
    line-height: 1;
    font-weight: 300;
    margin-bottom: 20px;
}

.accent-gold {
    color: var(--gold);
    font-weight: 600;
}

.hero-sub {
    font-size: 18px;
    color: var(--text-dim);
    letter-spacing: 4px;
    margin-bottom: 50px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 80px;
    margin-top: 50px;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-num {
    font-size: 32px;
    font-weight: 600;
    color: var(--gold);
}

.stat-label {
    font-size: 12px;
    text-transform: uppercase;
    color: var(--text-dim);
    letter-spacing: 1px;
}

.scroll-down {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
}

.scroll-down .line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--gold), transparent);
    margin-top: 10px;
}

.scroll-down .dot {
    width: 6px;
    height: 6px;
    background: var(--gold);
    border-radius: 50%;
    animation: bounce 2s infinite;
}

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

/* 通用章节 */
.section {
    padding: 100px 0;
}

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

.section-header.center {
    text-align: center;
}

.subtitle {
    display: block;
    font-size: 12px;
    color: var(--gold-dim);
    letter-spacing: 5px;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.section-header h2 {
    font-size: 42px;
    font-weight: 400;
}

/* 产品展示 */
.product-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.product-card {
    position: relative;
    height: 400px;
    overflow: hidden;
    cursor: pointer;
    border-radius: 4px;
}

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

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

.card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 30px;
    background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
    color: var(--white);
    transition: var(--transition);
}

.product-card:hover .card-overlay {
    background: linear-gradient(to top, rgba(212, 175, 55, 0.4), transparent);
}

/* 上线展示 */
.launch-scroll {
    display: flex;
    overflow-x: auto;
    gap: 20px;
    padding-bottom: 20px;
    scrollbar-width: thin;
    scrollbar-color: var(--gold) var(--bg-black);
}

.launch-item {
    min-width: 300px;
    background: var(--card-dark);
    padding: 30px;
    border: 1px solid rgba(212, 175, 55, 0.1);
    transition: var(--transition);
}

.launch-item:hover {
    border-color: var(--gold);
}

.launch-item h4 {
    font-size: 20px;
    color: var(--gold);
    margin-bottom: 10px;
}

/* 新闻网格 */
.news-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.news-card {
    display: flex;
    gap: 20px;
    background: var(--card-dark);
    padding: 20px;
    border-radius: 4px;
    transition: var(--transition);
}

.news-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.news-img {
    width: 150px;
    height: 100px;
    object-fit: cover;
    flex-shrink: 0;
    border-radius: 4px;
}

.news-info h4 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--white);
}

.news-date {
    font-size: 12px;
    color: var(--gold-dim);
}

/* 企业快讯 */
.ticker-container {
    background: var(--card-dark);
    height: 400px;
    overflow-y: auto;
    padding: 20px;
    border: 1px solid rgba(212, 175, 55, 0.2);
}

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

.ticker-item {
    padding: 15px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    display: flex;
    justify-content: space-between;
}

.ticker-item .time {
    color: var(--gold);
    font-weight: 600;
}

/* 产品页面布局 */
.product-page-container {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 50px;
    padding-top: 60px;
    padding-bottom: 100px;
}

.product-filters {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.filter-group {
    margin-bottom: 30px;
}

.filter-group h3 {
    font-size: 16px;
    margin-bottom: 15px;
    color: var(--gold);
    border-left: 2px solid var(--gold);
    padding-left: 10px;
}

.search-box input {
    width: 100%;
    background: var(--card-dark);
    border: 1px solid rgba(212,175,55,0.3);
    padding: 10px;
    color: #fff;
    border-radius: 4px;
}

.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    font-size: 12px;
    background: rgba(212,175,55,0.1);
    padding: 4px 12px;
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
}

.tag:hover {
    background: var(--gold);
    color: #000;
}

/* 按钮样式 */
.btn-gold {
    background: var(--gold);
    color: #000;
    border: none;
    padding: 12px 30px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border-radius: 4px;
    transition: var(--transition);
}

.btn-gold:hover {
    background: var(--gold-light);
}

.btn-gold.block {
    display: block;
    width: 100%;
}

/* 页脚 */
.footer {
    padding: 80px 0 40px;
    background: #050505;
    border-top: 1px solid rgba(212,175,55,0.1);
}

.footer-top {
    display: flex;
    justify-content: space-between;
    margin-bottom: 50px;
}

.footer-links {
    display: flex;
    gap: 60px;
}

.link-col h4 {
    color: var(--gold);
    margin-bottom: 20px;
}

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

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

.link-col a {
    text-decoration: none;
    color: var(--text-dim);
    transition: var(--transition);
}

.link-col a:hover {
    color: var(--gold);
}

/* 响应式 */
@media (max-width: 1024px) {
    .nav-links { gap: 20px; }
    .product-page-container { grid-template-columns: 1fr; }
    .hero-content h1 { font-size: 8vw; }
}

@media (max-width: 768px) {
    .navbar { padding: 10px 0; }
    .nav-links { display: none; }
    .hero-stats { flex-direction: column; gap: 20px; }
    .news-grid { grid-template-columns: 1fr; }
    .product-gallery { grid-template-columns: 1fr; }
    .intro-grid { flex-direction: column; }
}

/* 辅助动画 */
.reveal-text {
    opacity: 0;
    transform: translateY(30px);
    animation: reveal 1s forwards;
}

@keyframes reveal {
    to { opacity: 1; transform: translateY(0); }
}