/* UU881 - Art Deco Echo Casino Style */
/* 装饰艺术回响风格：重现1920年代"了不起的盖茨比"式的辉煌与几何美学 */

:root {
    /* Art Deco Echo Color Palette */
    --primary-bg: #0a1929;          /* 深蓝主色 */
    --secondary-bg: #1b2332;        /* 墨绿辅色 */
    --accent-bg: #2a3441;           /* 淡灰色调 */
    --primary-gold: #d4af37;        /* 亮眼金色 */
    --secondary-gold: #b8941f;      /* 暗金色 */
    --silver-accent: #c0c0c0;       /* 银色线条 */
    --cream: #f5f5dc;               /* 奶油色 */
    --text-light: #e8e8e8;          /* 浅色文字 */
    --text-gray: #a0a0a0;           /* 灰色文字 */
    --border-gold: #ffd700;         /* 金色边框 */
    --shadow-dark: rgba(0,0,0,0.8); /* 深色阴影 */
    --glass-bg: rgba(255,255,255,0.1); /* 磨砂玻璃效果 */
}

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

body {
    font-family: 'Montserrat', 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--text-light);
    background: linear-gradient(135deg, var(--primary-bg) 0%, var(--secondary-bg) 50%, var(--accent-bg) 100%);
    min-height: 100vh;
    font-weight: 300;
}

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

/* Art Deco Geometric Patterns */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 30%, var(--primary-gold) 0%, transparent 2%),
        radial-gradient(circle at 80% 70%, var(--silver-accent) 0%, transparent 2%),
        linear-gradient(45deg, transparent 25%, rgba(212, 175, 55, 0.05) 25%, rgba(212, 175, 55, 0.05) 50%, transparent 50%),
        linear-gradient(-45deg, transparent 25%, rgba(192, 192, 192, 0.05) 25%, rgba(192, 192, 192, 0.05) 50%, transparent 50%);
    background-size: 200px 200px, 150px 150px, 60px 60px, 40px 40px;
    pointer-events: none;
    z-index: -1;
    opacity: 0.6;
}

/* Header Styles */
header {
    background: linear-gradient(135deg, rgba(10, 25, 41, 0.95), rgba(27, 35, 50, 0.95));
    backdrop-filter: blur(15px);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 2px solid var(--primary-gold);
    box-shadow: 0 4px 20px var(--shadow-dark);
}

header::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--silver-accent), transparent);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1002;
    background: none;
    border: none;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-gold);
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

.logo {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(45deg, var(--primary-gold), var(--border-gold), var(--silver-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 2px 2px 4px var(--shadow-dark);
    letter-spacing: 2px;
    position: relative;
}

.logo::before {
    content: '';
    position: absolute;
    top: -5px;
    left: -10px;
    right: -10px;
    bottom: -5px;
    background: linear-gradient(45deg, var(--primary-gold), transparent, var(--silver-accent));
    border-radius: 8px;
    z-index: -1;
    opacity: 0.2;
}

.logo img {
    height: 42px;
    width: auto;
    display: block;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-links li {
    position: relative;
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 0.8rem;
    transition: all 0.3s ease;
    position: relative;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.85rem;
    white-space: nowrap;
}

.nav-links a::before {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-gold), var(--silver-accent));
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-links a:hover {
    color: var(--primary-gold);
    transform: translateY(-2px);
}

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

.cta-button {
    background: linear-gradient(45deg, var(--primary-gold), var(--border-gold));
    color: var(--primary-bg);
    padding: 0.8rem 2rem;
    border: none;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.6s ease;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(212, 175, 55, 0.5);
}

.cta-button:hover::before {
    left: 100%;
}

/* Hero Section */
.hero {
    margin-top: 80px;
    padding: 6rem 0;
    text-align: center;
    background: linear-gradient(135deg, var(--primary-bg) 0%, var(--secondary-bg) 50%, var(--accent-bg) 100%);
    position: relative;
    overflow: hidden;
}

/* Hero with background image overlay mode */
.hero.hero-bg {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    min-height: 600px;
    display: flex;
    align-items: center;
}

.hero.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg,
        rgba(10, 25, 41, 0.85) 0%,
        rgba(27, 35, 50, 0.75) 50%,
        rgba(42, 52, 65, 0.85) 100%);
    z-index: 0;
}

.hero.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, rgba(212, 175, 55, 0.1) 0%, transparent 70%);
    z-index: 1;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, rgba(212, 175, 55, 0.1) 0%, transparent 70%);
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 300;
    margin-bottom: 1.5rem;
    background: linear-gradient(45deg, var(--primary-gold), var(--border-gold), var(--silver-accent), var(--primary-gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 3px;
    text-transform: uppercase;
    position: relative;
}

.hero h1::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-gold), var(--silver-accent), var(--primary-gold));
    transform: translateX(-50%);
}

.hero p {
    font-size: 1.3rem;
    color: var(--text-gray);
    margin-bottom: 2.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
    font-weight: 300;
}

/* Content Blocks */
.content-section {
    padding: 5rem 0;
    position: relative;
}

.content-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 5rem;
    align-items: center;
}

.content-block.vertical {
    grid-template-columns: 1fr;
    text-align: center;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.content-text h2 {
    font-size: 2.8rem;
    font-weight: 300;
    margin-bottom: 1.5rem;
    color: var(--primary-gold);
    position: relative;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.content-text h2::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-gold), var(--silver-accent));
}

.content-text p {
    color: var(--text-light);
    font-size: 1.1rem;
    line-height: 1.9;
    margin-bottom: 1.5rem;
    font-weight: 300;
}

.content-image {
    background: linear-gradient(135deg, var(--glass-bg), rgba(192, 192, 192, 0.1));
    border: 2px solid var(--primary-gold);
    border-radius: 20px;
    padding: 0;
    text-align: center;
    color: var(--text-gray);
    min-height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
    position: relative;
    overflow: hidden;
}

.content-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 18px;
    transition: transform 0.3s ease;
}

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

/* Service Pages Image Styles */
.block-image {
    width: 100%;
    min-height: 300px;
    overflow: hidden;
    border-radius: 15px;
    background: var(--glass-bg);
}

.block-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.content-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg,
        transparent 25%,
        rgba(212, 175, 55, 0.1) 25%,
        rgba(212, 175, 55, 0.1) 75%,
        transparent 75%);
    background-size: 20px 20px;
}

/* Content Grid */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    margin: 4rem 0;
}

.grid-item {
    background: linear-gradient(135deg, var(--glass-bg), rgba(192, 192, 192, 0.05));
    border: 1px solid var(--primary-gold);
    border-radius: 15px;
    padding: 2.5rem;
    text-align: center;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.grid-item::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, var(--primary-gold) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.4s ease;
    transform: scale(0);
}

.grid-item:hover {
    transform: translateY(-10px);
    border-color: var(--border-gold);
    box-shadow: 0 15px 40px rgba(212, 175, 55, 0.2);
}

.grid-item:hover::before {
    opacity: 0.1;
    transform: scale(1);
}

.grid-item h3 {
    color: var(--primary-gold);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    z-index: 1;
}

.grid-item p {
    color: var(--text-light);
    line-height: 1.7;
    font-weight: 300;
    position: relative;
    z-index: 1;
}

/* Disclaimer Box */
.disclaimer {
    background: linear-gradient(135deg, #3d1a00, #5c2400);
    color: #ffcc99;
    padding: 2rem;
    margin: 3rem 0;
    border-radius: 15px;
    border-left: 5px solid #ff6b35;
    box-shadow: 0 8px 25px rgba(0,0,0,0.4);
    position: relative;
}

.disclaimer::before {
    content: '⚠️';
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 1.5rem;
}

.disclaimer strong {
    color: #ffaa77;
    font-weight: 600;
}

/* Footer */
footer {
    background: linear-gradient(135deg, var(--primary-bg), #000814);
    padding: 4rem 0 2rem;
    border-top: 2px solid var(--primary-gold);
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: -2px;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--silver-accent), transparent);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    color: var(--primary-gold);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-section p, .footer-section a {
    color: var(--text-gray);
    text-decoration: none;
    line-height: 1.8;
    transition: color 0.3s ease;
    font-weight: 300;
}

.footer-section a:hover {
    color: var(--primary-gold);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--accent-bg);
    color: var(--text-gray);
    font-size: 0.9rem;
}

/* Art Deco Decorative Elements */
.section-divider {
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--primary-gold), var(--silver-accent), var(--primary-gold), transparent);
    margin: 4rem 0;
    position: relative;
}

.section-divider::before,
.section-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 20px;
    height: 20px;
    background: var(--primary-gold);
    transform: translateY(-50%) rotate(45deg);
}

.section-divider::before {
    left: 50%;
    margin-left: -40px;
}

.section-divider::after {
    left: 50%;
    margin-left: 20px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        padding: 0 15px;
    }

    .hero h1 {
        font-size: 3.2rem;
    }

    .content-text h2 {
        font-size: 2.4rem;
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: linear-gradient(135deg, rgba(10, 25, 41, 0.98), rgba(27, 35, 50, 0.98));
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        padding-top: 100px;
        gap: 2rem;
        transition: right 0.3s ease;
        border-left: 2px solid var(--primary-gold);
        box-shadow: -5px 0 20px var(--shadow-dark);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links li {
        width: 100%;
        text-align: center;
    }

    .nav-links a {
        display: block;
        width: 100%;
        padding: 1rem 2rem;
        font-size: 1rem;
        border-bottom: 1px solid rgba(212, 175, 55, 0.2);
    }

    .nav-links a:hover {
        background: rgba(212, 175, 55, 0.1);
        transform: none;
    }

    .cta-button {
        margin-top: 2rem;
        padding: 1rem 2rem;
        font-size: 1rem;
    }

    .hero h1 {
        font-size: 2.5rem;
        letter-spacing: 1px;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .content-block {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .content-text h2 {
        font-size: 2rem;
    }

    .content-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .logo {
        font-size: 2rem;
    }
    .logo img {
        height: 34px;
    }

    .cta-button {
        padding: 0.7rem 1.5rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 4rem 0;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .content-section {
        padding: 3rem 0;
    }

    .content-text h2 {
        font-size: 1.8rem;
    }

    .grid-item {
        padding: 2rem;
    }
}

/* Expert Team Styles */
.expert-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 0 auto 1rem;
    overflow: hidden;
    border: 3px solid var(--primary-gold);
    box-shadow: 0 8px 20px var(--shadow-dark);
}

.expert-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.grid-item h3 {
    color: var(--primary-gold);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.grid-item h4 {
    color: var(--silver-accent);
    font-size: 1rem;
    margin-bottom: 1rem;
    font-weight: 400;
    font-style: italic;
}

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

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out;
}

.shimmer-effect {
    background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.4), transparent);
    background-size: 200% 100%;
    animation: shimmer 3s infinite;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-gold {
    color: var(--primary-gold);
}

.text-silver {
    color: var(--silver-accent);
}

.bg-glass {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
}

.border-gold {
    border: 1px solid var(--primary-gold);
}

.shadow-gold {
    box-shadow: 0 4px 20px rgba(212, 175, 55, 0.3);
}

/* Special Art Deco Elements */
.art-deco-frame {
    position: relative;
    padding: 2rem;
}

.art-deco-frame::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 2px solid var(--primary-gold);
    border-radius: 10px;
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}

.art-deco-frame::after {
    content: '';
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    bottom: 10px;
    border: 1px solid var(--silver-accent);
    border-radius: 8px;
}