/* ===== 全局重置与基础样式 ===== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    background: #0a0a0a;
    color: #e0d5c1;
    line-height: 1.8;
    overflow-x: hidden;
}
a { text-decoration: none; color: inherit; transition: all 0.3s ease; }
a:hover { color: #d4a843; }
img { max-width: 100%; height: auto; }
ul, ol { list-style: none; }

/* ===== 鎏金渐变文字 ===== */
.gold-text {
    background: linear-gradient(135deg, #f4d03f 0%, #d4a843 25%, #f7dc6f 50%, #c9952b 75%, #f4d03f 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== LOGO样式 ===== */
.logo {
    display: inline-block;
    background: linear-gradient(180deg, #1a1a1a 0%, #0d0d0d 100%);
    border: 2px solid #d4a843;
    border-radius: 8px;
    padding: 8px 20px;
    font-size: 22px;
    font-weight: 900;
    letter-spacing: 4px;
    box-shadow: 0 0 15px rgba(212, 168, 67, 0.3), inset 0 0 10px rgba(212, 168, 67, 0.1);
    position: relative;
    overflow: hidden;
}
.logo::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent 40%, rgba(244, 208, 63, 0.1) 50%, transparent 60%);
    animation: logoShine 3s infinite;
}
@keyframes logoShine {
    0% { transform: translateX(-100%) rotate(45deg); }
    100% { transform: translateX(100%) rotate(45deg); }
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: linear-gradient(180deg, rgba(10,10,10,0.98) 0%, rgba(15,15,15,0.95) 100%);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(212, 168, 67, 0.2);
    padding: 0 40px;
    transition: all 0.3s ease;
}
.navbar.scrolled {
    box-shadow: 0 4px 30px rgba(0,0,0,0.5);
}
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}
.nav-logo .logo { font-size: 18px; padding: 6px 16px; }
.nav-links { display: flex; gap: 5px; }
.nav-links a {
    padding: 8px 18px;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 500;
    color: #c9b99a;
    position: relative;
    transition: all 0.3s ease;
}
.nav-links a:hover, .nav-links a.active {
    color: #f4d03f;
    background: rgba(212, 168, 67, 0.1);
}
.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: linear-gradient(90deg, transparent, #d4a843, transparent);
}
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}
.mobile-toggle span {
    width: 25px;
    height: 2px;
    background: #d4a843;
    transition: all 0.3s ease;
    border-radius: 2px;
}

/* ===== 头部横幅 ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    background: linear-gradient(180deg, #0a0a0a 0%, #111 50%, #0a0a0a 100%);
}
.hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(212, 168, 67, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(212, 168, 67, 0.05) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 0%, rgba(212, 168, 67, 0.08) 0%, transparent 40%);
    z-index: 1;
}
.hero-particles {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 1;
    overflow: hidden;
}
.particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: rgba(212, 168, 67, 0.6);
    border-radius: 50%;
    animation: floatParticle linear infinite;
}
@keyframes floatParticle {
    0% { transform: translateY(100vh) scale(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}
.hero-content {
    position: relative;
    z-index: 2;
    padding: 0 20px;
}
.hero-logo {
    margin-bottom: 30px;
}
.hero-logo .logo {
    font-size: 36px;
    padding: 15px 40px;
    letter-spacing: 8px;
}
.hero h1 {
    font-size: 48px;
    font-weight: 900;
    margin-bottom: 20px;
    letter-spacing: 3px;
    line-height: 1.3;
}
.hero .subtitle {
    font-size: 20px;
    color: #a09880;
    margin-bottom: 15px;
    letter-spacing: 2px;
}
.hero .desc {
    font-size: 16px;
    color: #888;
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.8;
}
.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 36px;
    background: linear-gradient(135deg, #d4a843 0%, #f4d03f 50%, #c9952b 100%);
    color: #0a0a0a;
    font-size: 16px;
    font-weight: 700;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(212, 168, 67, 0.3);
    letter-spacing: 1px;
}
.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(212, 168, 67, 0.5);
    color: #0a0a0a;
}
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 36px;
    background: transparent;
    color: #d4a843;
    font-size: 16px;
    font-weight: 600;
    border-radius: 50px;
    border: 2px solid rgba(212, 168, 67, 0.4);
    cursor: pointer;
    transition: all 0.3s ease;
    letter-spacing: 1px;
}
.btn-secondary:hover {
    background: rgba(212, 168, 67, 0.1);
    border-color: #d4a843;
    color: #f4d03f;
    transform: translateY(-3px);
}
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    animation: bounce 2s infinite;
}
.scroll-indicator::before {
    content: '▼';
    color: rgba(212, 168, 67, 0.5);
    font-size: 20px;
}
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* ===== 通用区块 ===== */
.section {
    padding: 80px 40px;
    max-width: 1200px;
    margin: 0 auto;
}
.section-header {
    text-align: center;
    margin-bottom: 60px;
}
.section-header h2 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 15px;
    letter-spacing: 2px;
}
.section-header .line {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, transparent, #d4a843, transparent);
    margin: 0 auto 15px;
}
.section-header p {
    color: #888;
    font-size: 16px;
    max-width: 600px;
    margin: 0 auto;
}

/* ===== 特色服务卡片 ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}
.feature-card {
    background: linear-gradient(145deg, #141414 0%, #0d0d0d 100%);
    border: 1px solid rgba(212, 168, 67, 0.15);
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}
.feature-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, #d4a843, transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}
.feature-card:hover {
    transform: translateY(-8px);
    border-color: rgba(212, 168, 67, 0.3);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3), 0 0 30px rgba(212, 168, 67, 0.1);
}
.feature-card:hover::before { opacity: 1; }
.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: block;
}
.feature-card h3 {
    font-size: 20px;
    color: #f4d03f;
    margin-bottom: 12px;
    font-weight: 700;
}
.feature-card p {
    color: #999;
    font-size: 14px;
    line-height: 1.8;
}

/* ===== 文章列表 ===== */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}
.article-card {
    background: linear-gradient(145deg, #141414 0%, #0d0d0d 100%);
    border: 1px solid rgba(212, 168, 67, 0.12);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.4s ease;
}
.article-card:hover {
    transform: translateY(-5px);
    border-color: rgba(212, 168, 67, 0.3);
    box-shadow: 0 15px 35px rgba(0,0,0,0.3);
}
.article-card-img {
    height: 200px;
    background: linear-gradient(135deg, #1a1510 0%, #0d0d0d 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
    position: relative;
    overflow: hidden;
}
.article-card-img::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0; right: 0;
    height: 60px;
    background: linear-gradient(transparent, #141414);
}
.article-card-body { padding: 25px; }
.article-card-body h3 {
    font-size: 18px;
    color: #f4d03f;
    margin-bottom: 10px;
    font-weight: 700;
    line-height: 1.4;
}
.article-card-body .meta {
    font-size: 12px;
    color: #666;
    margin-bottom: 12px;
}
.article-card-body .excerpt {
    font-size: 14px;
    color: #999;
    line-height: 1.8;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.article-card-body .read-more {
    display: inline-block;
    margin-top: 15px;
    color: #d4a843;
    font-size: 14px;
    font-weight: 600;
}
.article-card-body .read-more:hover { color: #f4d03f; }

/* ===== 文章详情页 ===== */
.article-detail {
    max-width: 800px;
    margin: 0 auto;
    padding: 120px 40px 80px;
}
.article-detail h1 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 15px;
    line-height: 1.4;
    letter-spacing: 1px;
}
.article-meta {
    display: flex;
    gap: 20px;
    color: #666;
    font-size: 13px;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(212, 168, 67, 0.1);
}
.article-content {
    font-size: 16px;
    line-height: 2;
    color: #c9b99a;
}
.article-content p { margin-bottom: 20px; text-indent: 2em; }
.article-content h2 {
    font-size: 24px;
    color: #f4d03f;
    margin: 30px 0 15px;
    padding-left: 15px;
    border-left: 3px solid #d4a843;
}
.article-content h3 {
    font-size: 20px;
    color: #d4a843;
    margin: 25px 0 12px;
}
.article-content strong { color: #f4d03f; }
.article-content ul, .article-content ol {
    padding-left: 30px;
    margin-bottom: 20px;
}
.article-content li {
    margin-bottom: 8px;
    position: relative;
}
.article-content ul li::before {
    content: '◆';
    position: absolute;
    left: -20px;
    color: #d4a843;
    font-size: 10px;
    top: 2px;
}
.article-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid rgba(212, 168, 67, 0.1);
}
.article-nav a {
    color: #d4a843;
    font-size: 14px;
}

/* ===== 关于我们 ===== */
.about-section {
    padding: 120px 40px 80px;
    max-width: 1200px;
    margin: 0 auto;
}
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.about-text h2 {
    font-size: 32px;
    margin-bottom: 20px;
}
.about-text p {
    color: #999;
    margin-bottom: 15px;
    line-height: 1.9;
}
.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}
.stat-card {
    background: linear-gradient(145deg, #141414, #0d0d0d);
    border: 1px solid rgba(212, 168, 67, 0.15);
    border-radius: 12px;
    padding: 30px;
    text-align: center;
}
.stat-card .number {
    font-size: 36px;
    font-weight: 900;
    display: block;
    margin-bottom: 5px;
}
.stat-card .label {
    font-size: 13px;
    color: #888;
}

/* ===== 联系我们 ===== */
.contact-section {
    padding: 120px 40px 80px;
    max-width: 1000px;
    margin: 0 auto;
}
.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 50px;
}
.contact-card {
    background: linear-gradient(145deg, #141414, #0d0d0d);
    border: 1px solid rgba(212, 168, 67, 0.15);
    border-radius: 16px;
    padding: 40px 25px;
    text-align: center;
    transition: all 0.3s ease;
}
.contact-card:hover {
    transform: translateY(-5px);
    border-color: rgba(212, 168, 67, 0.3);
    box-shadow: 0 15px 30px rgba(0,0,0,0.3);
}
.contact-card .icon {
    font-size: 40px;
    margin-bottom: 15px;
    display: block;
}
.contact-card h3 {
    color: #f4d03f;
    font-size: 18px;
    margin-bottom: 10px;
}
.contact-card .info {
    color: #999;
    font-size: 14px;
    margin-bottom: 15px;
}
.contact-card .btn-action {
    display: inline-block;
    padding: 8px 24px;
    background: linear-gradient(135deg, #d4a843, #c9952b);
    color: #0a0a0a;
    border-radius: 25px;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
}
.contact-card .btn-action:hover {
    box-shadow: 0 5px 15px rgba(212, 168, 67, 0.3);
    transform: scale(1.05);
    color: #0a0a0a;
}

/* ===== 悬浮按钮 ===== */
.floating-buttons {
    position: fixed;
    right: 20px;
    bottom: 100px;
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.float-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    position: relative;
}
.float-btn:hover {
    transform: scale(1.15);
}
.float-btn.phone {
    background: linear-gradient(135deg, #27ae60, #2ecc71);
    color: white;
    animation: phoneRing 2s infinite;
}
@keyframes phoneRing {
    0%, 100% { box-shadow: 0 4px 15px rgba(39, 174, 96, 0.3); }
    50% { box-shadow: 0 4px 25px rgba(39, 174, 96, 0.6); }
}
.float-btn.qq {
    background: linear-gradient(135deg, #4a90d9, #5dade2);
    color: white;
}
.float-btn.wechat {
    background: linear-gradient(135deg, #07c160, #2ecc71);
    color: white;
}
.float-btn .tooltip {
    position: absolute;
    right: 65px;
    background: rgba(0,0,0,0.9);
    color: #f4d03f;
    padding: 8px 15px;
    border-radius: 8px;
    font-size: 13px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
    border: 1px solid rgba(212, 168, 67, 0.2);
}
.float-btn:hover .tooltip {
    opacity: 1;
    right: 70px;
}

/* ===== 底部悬浮栏 ===== */
.bottom-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 998;
    background: linear-gradient(180deg, rgba(10,10,10,0.95), rgba(10,10,10,0.99));
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(212, 168, 67, 0.2);
    padding: 10px 20px;
    display: flex;
    justify-content: center;
    gap: 15px;
}
.bottom-bar .bar-btn {
    flex: 1;
    max-width: 150px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    padding: 8px 10px;
    border-radius: 10px;
    cursor: pointer;
    border: none;
    font-size: 11px;
    font-weight: 600;
    transition: all 0.3s ease;
}
.bottom-bar .bar-btn:hover { transform: translateY(-2px); }
.bottom-bar .bar-btn .bar-icon { font-size: 22px; }
.bottom-bar .bar-btn.call {
    background: linear-gradient(135deg, #27ae60, #2ecc71);
    color: white;
}
.bottom-bar .bar-btn.qq-btn {
    background: linear-gradient(135deg, #4a90d9, #5dade2);
    color: white;
}
.bottom-bar .bar-btn.wechat-btn {
    background: linear-gradient(135deg, #07c160, #2ecc71);
    color: white;
}
.bottom-bar .bar-btn.home-btn {
    background: linear-gradient(135deg, #d4a843, #c9952b);
    color: #0a0a0a;
}

/* ===== 页脚 ===== */
.footer {
    background: linear-gradient(180deg, #0a0a0a, #050505);
    border-top: 1px solid rgba(212, 168, 67, 0.1);
    padding: 60px 40px 30px;
}
.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}
.footer-brand .logo { font-size: 16px; padding: 6px 14px; margin-bottom: 15px; }
.footer-brand p { color: #666; font-size: 13px; line-height: 1.8; }
.footer-col h4 {
    color: #d4a843;
    font-size: 15px;
    margin-bottom: 15px;
    font-weight: 700;
}
.footer-col a {
    display: block;
    color: #888;
    font-size: 13px;
    padding: 4px 0;
}
.footer-col a:hover { color: #f4d03f; }
.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 20px;
    border-top: 1px solid rgba(212, 168, 67, 0.08);
    text-align: center;
    color: #555;
    font-size: 12px;
}

/* ===== Toast提示 ===== */
.toast {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    background: rgba(0,0,0,0.9);
    color: #f4d03f;
    padding: 15px 30px;
    border-radius: 12px;
    font-size: 15px;
    z-index: 9999;
    opacity: 0;
    transition: all 0.3s ease;
    border: 1px solid rgba(212, 168, 67, 0.3);
    pointer-events: none;
}
.toast.show {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

/* ===== 面包屑导航 ===== */
.breadcrumb {
    padding: 100px 40px 20px;
    max-width: 1200px;
    margin: 0 auto;
}
.breadcrumb a { color: #888; font-size: 14px; }
.breadcrumb span { color: #d4a843; font-size: 14px; }
.breadcrumb .sep { color: #555; margin: 0 8px; }

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .nav-links { 
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(10,10,10,0.98);
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid rgba(212, 168, 67, 0.2);
    }
    .nav-links.open { display: flex; }
    .mobile-toggle { display: flex; }
    .hero h1 { font-size: 28px; }
    .hero-logo .logo { font-size: 24px; padding: 10px 25px; }
    .hero .subtitle { font-size: 16px; }
    .section { padding: 60px 20px; }
    .section-header h2 { font-size: 26px; }
    .about-content { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-content { grid-template-columns: 1fr 1fr; }
    .articles-grid { grid-template-columns: 1fr; }
    .floating-buttons { right: 10px; bottom: 80px; }
    .float-btn { width: 48px; height: 48px; font-size: 20px; }
    .article-detail { padding: 100px 20px 60px; }
    .article-detail h1 { font-size: 24px; }
}

/* ===== 动画 ===== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

/* ===== 分隔线装饰 ===== */
.divider {
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(212, 168, 67, 0.2), transparent);
    margin: 0;
}

/* ===== 装饰背景 ===== */
.bg-decoration {
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.03;
    pointer-events: none;
}