:root {
    --primary: #0045ad;
    --primary-light: #2a6edb;
    --primary-dark: #002d72;
    --secondary: #f8f9fa;
    --accent: #e63946;
    --success: #28a745;
    --text-main: #1a1a1a;
    --text-muted: #666666;
    --border: #e0e0e0;
    --bg-main: #ffffff;
    --bg-alt: #f4f7fa;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: "PingFang SC", "Microsoft YaHei", sans-serif; }
html { font-size: 14px; scroll-behavior: smooth; }
body { line-height: 1.6; color: var(--text-main); background: var(--bg-main); overflow-x: hidden; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 20px; }
a { text-decoration: none; color: inherit; transition: all 0.2s ease; }
ul { list-style: none; }

/* Header & Nav - Portal Style - Fixed Fix */
header { 
    position: fixed; 
    top: 0; 
    width: 100%; 
    z-index: 9000; 
    background: #fff; 
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

header.sticky {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    height: 70px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
}

header.sticky .logo span {
    color: var(--primary);
}

header.sticky .nav-links a {
    color: #333;
}

header.sticky .top-bar {
    display: none;
}

.top-bar { 
    background: var(--primary-dark); 
    color: #fff; 
    padding: 8px 0; 
    font-size: 12px; 
}

.top-bar-content { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
}

.main-nav { 
    height: 70px; 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 24px;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
}

.logo .icon-std {
    background-image: url('https://images.unsplash.com/photo-1560171902-5c599c96ebb7?auto=format&fit=crop&q=80&w=100');
    background-size: cover;
    border-radius: 4px;
}

.nav-links { 
    display: flex; 
    gap: 25px; 
    height: 100%;
    align-items: center;
}

.nav-links a { 
    font-weight: 600; 
    font-size: 15px; 
    color: #333; 
    height: 100%;
    display: flex;
    align-items: center;
    padding: 0 5px;
    position: relative;
    transition: color 0.3s;
}

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

.nav-links a.active::after { 
    content: ''; 
    position: absolute; 
    bottom: 0; 
    left: 0; 
    width: 100%; 
    height: 3px; 
    background: var(--primary); 
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-main);
    padding: 10px;
}

/* Ensure body has enough padding for fixed header */
body { 
    padding-top: 100px; /* Adjust based on top-bar + main-nav height */
}

/* Navigation Actions */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.btn-consult {
    background: var(--primary);
    color: #fff;
    padding: 10px 25px;
    border-radius: 50px;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(0,69,173,0.3);
    white-space: nowrap;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-consult:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,69,173,0.4);
}

/* Language Switcher */
.lang-switcher {
    position: relative;
    margin-left: 15px;
    display: flex;
    align-items: center;
}

.lang-btn {
    background: #fff;
    border: 1px solid var(--border);
    padding: 8px 16px;
    border-radius: 50px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-main);
    transition: all 0.3s;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.lang-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 10px;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    display: none;
    flex-direction: column;
    min-width: 120px;
    z-index: 10000;
    overflow: hidden;
}

.lang-dropdown.show {
    display: flex;
}

.lang-dropdown a {
    padding: 10px 15px;
    font-size: 13px;
    color: var(--text-main);
    transition: all 0.2s;
}

.lang-dropdown a:hover {
    background: var(--bg-alt);
    color: var(--primary);
}

@media (max-width: 768px) {
    .main-nav { height: 60px; padding: 0 15px; }
    .logo { font-size: 18px; }
    .logo span { font-size: 16px; }
    .mobile-toggle { display: block; order: 3; }
    .nav-actions { display: flex; order: 2; margin-right: 10px; gap: 8px; }
    .btn-consult { padding: 6px 12px !important; font-size: 12px !important; box-shadow: none; }
    .lang-switcher { margin-left: 0; }
    .lang-text { display: none; }
    .lang-btn { padding: 8px; border: none; background: transparent; box-shadow: none; }
    
    .nav-links {
        display: none;
        position: absolute;
        top: 60px; /* Align to bottom of main-nav */
        left: 0;
        width: 100%;
        background: #fff;
        flex-direction: column;
        gap: 0;
        box-shadow: 0 10px 15px rgba(0,0,0,0.1);
        z-index: 1999;
        border-top: 1px solid var(--border);
    }
    .nav-links.active { display: flex; }
    .nav-links a {
        padding: 12px 20px;
        border-bottom: 1px solid var(--border);
        width: 100%;
        font-size: 14px;
    }
    .nav-links a.active::after { display: none; }
    
    .hero-slider { height: 60vh; min-height: 400px; }
    .hero-content h1 { font-size: 24px; }
    .hero-content p { font-size: 14px; margin-bottom: 20px; }
    .hero-btns .btn { padding: 10px 20px; font-size: 13px; }
    
    .section { padding: 40px 0; }
    .section-title { margin-bottom: 30px; }
    .section-title h2 { font-size: 24px; }
    
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 15px; }
    .partners-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
    
    /* Compact Body */
    body { padding-top: 85px; }
    .top-bar { padding: 4px 0; font-size: 10px; }
    .top-bar-content { flex-direction: column; gap: 2px; text-align: center; }
    .container { padding: 0 12px; }
    .card-compact { padding: 15px !important; }
    
    /* Service Cards Mobile Optimization */
    .services-grid { grid-template-columns: 1fr; gap: 15px; }
    .service-card { margin-bottom: 0; padding: 15px; }
    .service-card-body h3 { font-size: 16px; margin-bottom: 8px; }
    .service-card-body p { font-size: 13px; line-height: 1.5; margin-bottom: 12px; }
    .service-card-icon { width: 35px; height: 35px; margin-bottom: 12px; }
    
    /* Cases Cards Mobile Optimization */
    .cases-container { grid-template-columns: 1fr; gap: 15px; }
    .case-card { margin-bottom: 0; }
    .case-header { height: 160px; }
    .case-body { padding: 15px; }
    .case-body h3 { font-size: 16px; margin-bottom: 10px; }
    .case-desc { font-size: 13px; margin-bottom: 15px; line-height: 1.5; }
    
    .section-title { margin-bottom: 20px; }
    .section-title h2 { font-size: 20px; padding-bottom: 10px; }
    
    /* Compact Nav */
    .nav-links a { padding: 10px 15px; font-size: 13px; }
}

/* Hero Slider Section */
.hero-slider {
    position: relative;
    height: 500px;
    width: 100%;
    overflow: hidden;
}

.slider-container {
    height: 100%;
    width: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    background-size: cover;
    background-position: center;
    transition: opacity 1s ease, visibility 1s;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
}

.slide.active {
    opacity: 1;
    visibility: visible;
    z-index: 1;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-content h1 {
    font-size: 48px;
    font-weight: 900;
    margin-bottom: 20px;
    text-shadow: 0 4px 15px rgba(0,0,0,0.3);
    line-height: 1.2;
}

.hero-content p {
    font-size: 18px;
    margin-bottom: 35px;
    opacity: 0.9;
    line-height: 1.6;
}

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

.hero-btns .btn {
    padding: 14px 35px;
    font-size: 15px;
    border-radius: 50px;
    font-weight: 700;
}

.btn-outline {
    border: 2px solid #fff;
    color: #fff;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(5px);
}

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

/* Animations */
.animate-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.slide.active .animate-up {
    opacity: 1;
    transform: translateY(0);
}

.slide.active h1.animate-up { transition-delay: 0.3s; }
.slide.active p.animate-up { transition-delay: 0.5s; }
.slide.active .hero-btns.animate-up { transition-delay: 0.7s; }

/* Slider Dots */
.slider-dots {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    gap: 15px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255,255,255,0.3);
    cursor: pointer;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.dot.active {
    background: #fff;
    transform: scale(1.2);
    box-shadow: 0 0 10px rgba(255,255,255,0.5);
}

@media (max-width: 768px) {
    .hero-content h1 { font-size: 36px; }
    .hero-content p { font-size: 16px; }
    .hero-slider { height: 80vh; min-height: 500px; }
}

/* Section Common */
.section { padding: 80px 0; }
.section-gray { background: var(--bg-alt); }
.section-title { text-align: center; margin-bottom: 60px; }
.section-title h2 { font-size: 32px; font-weight: 800; margin-bottom: 15px; position: relative; padding-bottom: 15px; }
.section-title h2::after { content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 50px; height: 4px; background: var(--primary); }

/* Service Categories - Tabbed/Dense */
.service-tabs { display: flex; justify-content: center; gap: 10px; margin-bottom: 40px; flex-wrap: wrap; }
.tab-btn { padding: 12px 25px; background: #f5f7fa; border: 1px solid var(--border); border-radius: 4px; font-weight: 700; cursor: pointer; transition: 0.3s; color: var(--text-muted); }
.tab-btn.active { background: var(--primary); color: #fff; border-color: var(--primary); box-shadow: 0 4px 10px rgba(0,102,204,0.2); }
.tab-btn:hover:not(.active) { background: #eef2f6; color: var(--primary); }

.tab-content { display: none !important; }
.tab-content.active { display: grid !important; animation: fadeIn 0.5s ease-out; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.services-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.service-card { 
    background: #fff; 
    border: 1px solid var(--border); 
    border-radius: 8px; 
    overflow: hidden; 
    transition: 0.3s; 
    display: flex; 
    flex-direction: column; 
    position: relative; /* For badge positioning */
}

/* Card Badge Styles */
.card-tag {
    position: absolute;
    top: 0;
    right: 0;
    padding: 4px 12px;
    font-size: 11px;
    font-weight: 800;
    color: #fff;
    border-radius: 0 8px 0 12px;
    z-index: 10;
    text-transform: uppercase;
    box-shadow: -2px 2px 5px rgba(0,0,0,0.1);
}

.tag-hot { background: linear-gradient(135deg, #ff4d4d 0%, #f70000 100%); } /* 行业热销 */
.tag-essential { background: linear-gradient(135deg, #ffda44 0%, #d4af37 100%); color: #333; } /* 企业必备 */
.tag-trend { background: linear-gradient(135deg, #7048e8 0%, #5025d1 100%); } /* 热门搜索 */
.tag-new { background: linear-gradient(135deg, #20c997 0%, #0ca678 100%); } /* 行业新规 */

.service-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: var(--primary); }
.service-card-body { padding: 25px; flex-grow: 1; }
.service-card-icon { width: 50px; height: 50px; background: var(--bg-alt); border-radius: 8px; display: flex; align-items: center; justify-content: center; margin-bottom: 20px; color: var(--primary); }
.service-card h3 { font-size: 18px; margin-bottom: 15px; font-weight: 700; }
.service-card p { font-size: 14px; color: var(--text-muted); margin-bottom: 20px; line-height: 1.6; }
.service-card-footer, .card-compact-footer { 
    padding: 15px 25px; 
    border-top: 1px solid var(--border); 
    background: #fafafa; 
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.card-compact-footer { padding: 15px 0 0; background: transparent; border-top: 1px solid var(--border); margin-top: auto; }
.learn-more, .contact-card-link, .footer-link { font-weight: 700; color: var(--primary); font-size: 13px; display: flex; align-items: center; gap: 5px; transition: all 0.3s; }
.contact-card-link { color: var(--accent); }
.contact-card-link:hover { opacity: 0.8; }

/* Stats Section */
.stats { background: var(--primary); color: #fff; padding: 60px 0; text-align: center; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.stat-item h3 { font-size: 40px; font-weight: 900; margin-bottom: 10px; }
.stat-item p { font-size: 16px; opacity: 0.8; }

/* News/Articles Section */
.news-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 40px; }
.news-main { display: flex; flex-direction: column; gap: 30px; }
.news-item { display: flex; gap: 20px; background: #fff; border-radius: 8px; overflow: hidden; border: 1px solid var(--border); }
.news-item-img { width: 200px; height: 150px; background: #eee; flex-shrink: 0; object-fit: cover; }
.news-item-content { padding: 20px; display: flex; flex-direction: column; justify-content: center; }
.news-item-date { font-size: 12px; color: var(--text-muted); margin-bottom: 10px; }
.news-item h4 { font-size: 18px; margin-bottom: 10px; font-weight: 700; }
.news-item p { font-size: 14px; color: var(--text-muted); line-height: 1.5; }

.news-sidebar { display: flex; flex-direction: column; gap: 20px; }
.sidebar-block { background: #fff; padding: 25px; border-radius: 8px; border: 1px solid var(--border); }
.sidebar-block h3 { font-size: 18px; margin-bottom: 20px; border-left: 4px solid var(--primary); padding-left: 10px; }
.mini-news-list li { margin-bottom: 15px; padding-bottom: 15px; border-bottom: 1px dashed var(--border); }
.mini-news-list li:last-child { border-bottom: none; }

/* Services Index Page Layout */
.service-index-wrap {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 40px;
    margin-top: 40px;
    padding-bottom: 80px;
}

.sidebar-nav {
    position: sticky;
    top: 120px;
    height: fit-content;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 25px;
}

.sidebar-nav h4 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--primary);
    border-bottom: 2px solid var(--primary);
    padding-bottom: 10px;
}

.sidebar-nav ul li {
    margin-bottom: 5px;
}

.sidebar-nav ul li a {
    display: block;
    padding: 12px 15px;
    border-radius: 6px;
    color: var(--text-muted);
    font-weight: 600;
    transition: all 0.3s;
}

.sidebar-nav ul li a:hover,
.sidebar-nav ul li a.active {
    background: var(--bg-alt);
    color: var(--primary);
}

.main-content {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.content-block h2 {
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.content-block h2::before {
    content: '';
    width: 4px;
    height: 24px;
    background: var(--primary);
    border-radius: 2px;
}

.grid-dense {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.card-compact {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 25px;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
    position: relative; /* For badges */
}

.card-compact:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.card-compact .icon-std {
    width: 40px;
    height: 40px;
    background: var(--bg-alt);
    border-radius: 6px;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.card-compact h3 {
    font-size: 16px;
    margin-bottom: 10px;
    font-weight: 700;
}

.card-compact p {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 15px;
    line-height: 1.5;
    flex-grow: 1;
}

.card-compact .footer-link {
    font-size: 12px;
    font-weight: 700;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 5px;
}

.card-compact.hot {
    border: 2px solid var(--primary);
    box-shadow: 0 10px 25px rgba(0, 69, 173, 0.1);
}

.card-compact.hot::before {
    content: 'HOT';
    position: absolute;
    top: -10px;
    left: 20px;
    background: var(--accent);
    color: #fff;
    padding: 2px 10px;
    font-size: 10px;
    font-weight: 900;
    border-radius: 4px;
    z-index: 11;
}

@media (max-width: 992px) {
    .service-index-wrap {
        grid-template-columns: 1fr;
    }
    .sidebar-nav {
        display: none;
    }
}
/* Case Study Cards - Professional Layout */
.cases-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.case-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
}

.case-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.case-header {
    height: 180px;
    background-size: cover;
    background-position: center;
    background-color: #0045ad; /* Fallback color */
    position: relative;
}

.case-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background: var(--primary);
    color: #fff;
    padding: 5px 15px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 700;
}

.case-body {
    padding: 25px;
    flex-grow: 1;
}

.case-body h3 {
    font-size: 18px;
    margin-bottom: 12px;
    color: var(--primary-dark);
    font-weight: 800;
    line-height: 1.4;
}

.case-desc {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 20px;
    line-height: 1.6;
}

.case-result {
    background: #f8faff;
    border-left: 4px solid var(--success);
    padding: 12px 15px;
    border-radius: 4px;
}

.case-result span {
    display: block;
    font-size: 12px;
    font-weight: 800;
    color: var(--success);
    text-transform: uppercase;
    margin-bottom: 4px;
}

.case-result p {
    font-size: 13px;
    color: #444;
    font-weight: 600;
}

/* --- Advanced Responsive & Detail Polishing --- */

/* Mobile Optimization */
@media (max-width: 768px) {
    .container { padding: 0 20px; }
    
    header { height: 70px; }
    .main-nav { height: 70px; }
    .nav-links { display: none; } /* Mobile menu handled by JS toggle */
    
    .hero h1 { font-size: 32px !important; line-height: 1.3; }
    .hero p { font-size: 16px !important; margin-bottom: 30px !important; }
    .hero .btn { width: 100%; padding: 15px !important; font-size: 16px !important; }
    
    .section { padding: 60px 0; }
    .section-title h2 { font-size: 28px !important; }
    
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
    .stat-item h3 { font-size: 28px; }
    
    .about-flex { gap: 40px !important; }
    .about-content h2 { font-size: 30px !important; }
    .about-image { margin-top: 30px; }
    
    .cases-container { grid-template-columns: 1fr; }
    .case-card { margin-bottom: 20px; }
    
    .footer-grid { grid-template-columns: 1fr; gap: 40px; text-align: center; }
    .footer-col h4::after { left: 50%; transform: translateX(-50%); }
    .contact-info p { justify-content: center; }
}

/* UI Details Enhancement */
.btn {
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    letter-spacing: 0.5px;
}

.btn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
}

.case-card {
    transition: all 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.case-card:hover .case-header {
    transform: scale(1.05);
}

.case-header {
    overflow: hidden;
    transition: transform 0.5s ease;
}

/* Custom Scrollbar for high-end feel */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #f1f1f1;
}
::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* Section Gray Background for separation */
.section-gray {
    background-color: #f9fbff;
}
.mini-news-list span { font-size: 12px; color: var(--text-muted); }

/* Partners Logo Wall */
.partners-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; align-items: center; opacity: 0.6; }
.partner-logo { height: 60px; background: #fff; border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; font-weight: 900; font-size: 20px; color: #ccc; }

/* --- Footer Styling --- */
footer {
    background: #002d72;
    color: #fff;
    padding: 60px 0 0;
    border-top: 4px solid #ffda44;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-col h4 {
    color: #fff;
    font-size: 18px;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 30px;
    height: 2px;
    background: #ffda44;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255,255,255,0.7);
    font-size: 14px;
    transition: all 0.3s;
}

.footer-links a:hover {
    color: #ffda44;
    padding-left: 5px;
}

.contact-info p {
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 25px 0;
    text-align: center;
    font-size: 13px;
    color: rgba(255,255,255,0.5);
}

/* --- Floating Sidebar Menu --- */
.floating-menu {
    position: fixed;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.float-item {
    width: 50px;
    height: 50px;
    background: #fff;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    cursor: pointer;
    position: relative;
    transition: all 0.3s;
    color: var(--primary);
}

.float-item:hover {
    background: var(--primary);
    color: #fff;
}

.float-item .popover {
    position: absolute;
    right: 65px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--primary);
    color: #fff;
    padding: 15px 25px;
    border-radius: 8px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    box-shadow: 0 5px 20px rgba(0,69,173,0.3);
    z-index: 1000;
}

/* QR Code Popover Style */
.float-item .popover.qr-popover {
    padding: 15px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.qr-popover p {
    margin: 0;
    font-size: 14px;
    font-weight: 700;
}

.qr-popover img {
    width: 130px;
    height: 130px;
    background: #fff;
    padding: 5px;
    border-radius: 4px;
    display: block;
}

.float-item:hover .popover {
    opacity: 1;
    visibility: visible;
    right: 60px;
}

.float-item .popover::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
    width: 12px;
    height: 12px;
    background: var(--primary);
}

.back-to-top {
    background: #333;
    color: #fff;
}

@media (max-width: 768px) {
    .floating-menu { display: none; }
}

/* Responsive */
@media (max-width: 1024px) {
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .news-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}