:root {
    --primary-50: #f5f3ff; --primary-100: #ede9fe; --primary-200: #ddd6fe; --primary-300: #c4b5fd;
    --primary-400: #a78bfa; --primary-500: #8b5cf6; --primary-600: #7c3aed; --primary-700: #6d28d9;
    --primary-800: #5b21b6; --primary-900: #4c1d95;
    --secondary-50: #fdf2f8; --secondary-100: #fce7f3; --secondary-200: #fbcfe8; --secondary-300: #f9a8d4;
    --secondary-400: #f472b6; --secondary-500: #ec4899; --secondary-600: #db2777; --secondary-700: #be185d;
    --accent-blue: #0ea5e9; --accent-green: #10b981; --accent-yellow: #f59e0b; --accent-red: #ef4444;
    --bg-primary: #ffffff; --bg-secondary: #f8fafc;
    --bg-gradient-start: #e0f2fe; --bg-gradient-middle: #f0f9ff; --bg-gradient-end: #fdf4ff;
    --surface-01: rgba(255, 255, 255, 0.90); --surface-02: rgba(255, 255, 255, 0.70);
    --text-primary: #1f2937; --text-secondary: #4b5563; --text-tertiary: #6b7280;
    --border-light: rgba(0, 0, 0, 0.1);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05); --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1); --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --blur-background: blur(20px); --transition-standard: cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius-lg: 24px; --border-radius-md: 16px; --border-radius-sm: 12px;
    --highlight-bg: #ffeb3b; --highlight-txt: #000;
}

.dark-mode {
    --bg-primary: #0a0a0a; --bg-secondary: #111827;
    --bg-gradient-start: #1e1b4b; --bg-gradient-middle: #1e293b; --bg-gradient-end: #312e81;
    --surface-01: rgba(30, 41, 59, 0.85); --surface-02: rgba(30, 41, 59, 0.60);
    --text-primary: #f9fafb; --text-secondary: #e5e7eb; --text-tertiary: #d1d5db;
    --border-light: rgba(255, 255, 255, 0.1);
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4); --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4); --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.4);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    --highlight-bg: #ffd700;
}

* { margin: 0; padding: 0; box-sizing: border-box; -webkit-font-smoothing: antialiased; }

body {
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-middle) 50%, var(--bg-gradient-end) 100%);
    min-height: 100vh; font-family: 'Inter', sans-serif; color: var(--text-primary);
    transition: all 0.5s var(--transition-standard); position: relative; overflow-x: hidden;
}

.grid-background {
    position: fixed; inset: 0;
    background-image: radial-gradient(circle at 20% 30%, var(--primary-500) 0%, transparent 15%), radial-gradient(circle at 80% 70%, var(--secondary-500) 0%, transparent 15%), radial-gradient(circle at 40% 80%, var(--accent-blue) 0%, transparent 15%);
    opacity: 0.05; z-index: -3;
}

.geometric-shapes { position: fixed; inset: 0; z-index: -2; opacity: 0.15; }
.geometric-shapes .shape { position: absolute; background: linear-gradient(45deg, var(--primary-500), var(--secondary-500)); opacity: 0.1; animation: shapeFloat 20s infinite linear; }
.shape:nth-child(1) { width: 300px; height: 300px; border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; top: -100px; left: -100px; animation-delay: 0s; }
.shape:nth-child(2) { width: 400px; height: 400px; border-radius: 50%; bottom: -150px; right: -100px; animation-delay: -5s; }
.shape:nth-child(3) { width: 200px; height: 200px; border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%; top: 40%; left: 80%; animation-delay: -10s; }
@keyframes shapeFloat { 0% { transform: translate(0, 0) rotate(0deg); } 100% { transform: translate(100px, 50px) rotate(360deg); } }

.glass-panel { background: var(--surface-01); backdrop-filter: var(--blur-background); -webkit-backdrop-filter: var(--blur-background); border: 1px solid var(--border-light); box-shadow: var(--shadow-md); transition: all 0.3s ease; }

/* ==========================================
   响应式网格间距控制（修复手机端撑爆屏幕的 Bug）
   ========================================== */
.custom-hero-row { --bs-gutter-x: 50px; --bs-gutter-y: 50px; }
.custom-section-row { --bs-gutter-x: 60px; --bs-gutter-y: 60px; }
.custom-footer-links-row { --bs-gutter-x: 30px; --bs-gutter-y: 40px; }

@media (max-width: 768px) {
    .custom-hero-row { --bs-gutter-x: 20px; --bs-gutter-y: 30px; }
    .custom-section-row { --bs-gutter-x: 20px; --bs-gutter-y: 40px; }
    .custom-footer-links-row { --bs-gutter-x: 20px; --bs-gutter-y: 30px; }
}

header { position: fixed; width: 100%; top: 0; left: 0; z-index: 1000; background: var(--surface-01); backdrop-filter: var(--blur-background); -webkit-backdrop-filter: var(--blur-background); border-bottom: 1px solid var(--border-light); height: 80px; transition: all 0.3s ease; box-shadow: var(--shadow-sm); }
header .container { max-width: 1200px; margin: 0 auto; padding: 0 20px; height: 100%; }
nav { display: flex; justify-content: space-between; align-items: center; position: relative; height: 100%; width: 100%; }
.logo-wrapper { display: flex; align-items: center; text-decoration: none; cursor: pointer; position: relative; height: 100%; }
.logo-img { width: 45px; height: 45px; border-radius: 50%; object-fit: cover; border: 2px solid var(--primary-500); transition: all 0.3s ease; box-shadow: var(--shadow-md); }
.logo-wrapper:hover .logo-img { transform: translateY(-2px) scale(1.05); border-color: var(--secondary-500); box-shadow: var(--shadow-lg); }

.nav-links { display: flex; align-items: center; list-style: none; gap: 30px; margin: 0; padding: 0; height: 100%; }
.nav-links>li { display: flex; align-items: center; position: relative; height: 100%; margin: 0; padding: 0; }
.nav-links>li>a, .dropdown-toggle { display: flex; align-items: center; justify-content: center; height: 100%; padding: 10px; margin: 0px; text-decoration: none; font-weight: 600; color: var(--text-primary); font-size: 14px; font-family: 'Inter', sans-serif; position: relative; transition: all 0.3s ease; box-sizing: border-box; }
.nav-links>li>a::after { content: ""; position: absolute; bottom: 20px; left: 0; width: 0; height: 2px; background: var(--primary-500); transition: all 0.3s ease; }
.nav-links>li>a:hover::after { width: 100%; }
.nav-links>li>a:hover { color: var(--primary-600); }

/* ==== 修复的下拉菜单定位 (强制覆盖 Bootstrap) ==== */
.dropdown { position: relative; display: flex; align-items: center; height: 100%; margin: 0; padding: 0; }
.dropdown-toggle { cursor: pointer; user-select: none; gap: 6px; }
/* 删掉 Bootstrap 自动加的丑箭头 */
.dropdown-toggle::after { display: none !important; }
.dropdown-toggle i { transition: transform 0.3s ease; pointer-events: none; display: flex; align-items: center; }
.dropdown::after { content: ''; position: absolute; top: 100%; left: 0; width: 100%; height: 20px; }

.dropdown-menu { 
    display: block !important; /* 核心修复点：强制解除 Bootstrap 的 display:none 封锁 */
    position: absolute; 
    top: 100%; 
    left: 0; 
    min-width: 220px; 
    background: var(--surface-01); 
    backdrop-filter: var(--blur-background); 
    border: 1px solid var(--border-light); 
    border-radius: var(--border-radius-md); 
    padding: 10px; 
    margin: 0; 
    opacity: 0; 
    visibility: hidden; 
    pointer-events: none; 
    transform: translateY(15px); 
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); 
    box-shadow: var(--shadow-xl); 
    z-index: 9999; 
}
.dropdown:hover .dropdown-menu { opacity: 1; visibility: visible; pointer-events: auto; transform: translateY(0); }
.dropdown:hover .dropdown-toggle i { transform: rotate(180deg); color: var(--primary-600); }
.dropdown:hover .dropdown-toggle { color: var(--primary-600); }
.dropdown-menu li { list-style: none; margin: 0; width: 100%; height: auto; }
.dropdown-menu a { display: block; padding: 12px 20px; color: var(--text-primary); text-decoration: none; font-size: 14px; font-weight: 500; border-radius: 8px; transition: all 0.2s ease; margin-bottom: 2px; width: 100%; box-sizing: border-box; height: auto; }
.dropdown-menu a:hover { background: rgba(139, 92, 246, 0.1); color: var(--primary-600); transform: translateX(5px); }

.nav-actions { display: flex; align-items: center; gap: 15px; height: 100%; }
.search-box { position: relative; display: flex; align-items: center; }
.search-input { width: 180px; padding: 10px 40px 10px 16px; border-radius: 25px; border: 1.5px solid var(--border-light); background: var(--surface-02); color: var(--text-primary); font-size: 14px; outline: none; transition: all 0.3s ease; }
.search-input:focus { border-color: var(--primary-500); box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15); }
.search-box i { position: absolute; right: 16px; color: var(--text-secondary); pointer-events: none; }

.theme-toggle { border: 1px solid var(--border-light); background: var(--surface-02); color: var(--text-secondary); width: 44px; height: 44px; border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all 0.3s ease; box-shadow: var(--shadow-sm); }
.theme-toggle:hover { background: var(--surface-01); color: var(--primary-600); transform: rotate(15deg) scale(1.1); box-shadow: var(--shadow-md); }

.hero { min-height: 100vh; display: flex; align-items: center; padding-top: 100px; position: relative; }
.hero-content { z-index: 1; }

.hero-text { opacity: 0; animation: fadeIn 0.8s ease-out forwards; }
.hero-badge { display: inline-block; padding: 8px 18px; border-radius: 20px; margin-bottom: 20px; }
.hero-badge span { color: var(--primary-600); font-weight: 600; font-size: 14px; }
.hero-text h1 { font-size: 3.8rem; margin-bottom: 20px; line-height: 1.2; font-weight: 800; letter-spacing: -1px; }
.gradient-text { background: linear-gradient(135deg, var(--primary-600), var(--secondary-600), var(--accent-blue)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero-description { font-size: 1.2rem; margin-bottom: 35px; color: var(--text-secondary); line-height: 1.7; max-width: 500px; }

.hero-actions { display: flex; gap: 15px; margin-bottom: 40px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 14px 28px; border-radius: 25px; font-weight: 600; transition: all 0.3s ease; border: none; cursor: pointer; font-size: 16px; text-decoration: none; }
.btn-primary { background: linear-gradient(135deg, var(--primary-500), var(--primary-700)); color: white; box-shadow: var(--shadow-md); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 8px 25px rgba(139, 92, 246, 0.4); }
.btn-secondary { background: var(--surface-01); border: 1px solid var(--border-light); color: var(--text-primary); }
.btn-secondary:hover { border-color: var(--primary-500); color: var(--primary-600); transform: translateY(-3px); box-shadow: var(--shadow-md); }
.btn-block { width: 100%; justify-content: center; }

.hero-stats { display: flex; gap: 40px; }
.stat-number { display: block; font-size: 2.2rem; font-weight: 800; color: var(--primary-600); margin-bottom: 5px; }
.stat-label { font-size: 0.95rem; color: var(--text-secondary); font-weight: 500; }

.hero-image { opacity: 0; animation: fadeIn 0.8s ease-out 0.3s forwards; }
.image-frame { position: relative; width: 420px; height: 420px; margin: 0 auto; }
.image-frame img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; border: 4px solid var(--surface-01); box-shadow: var(--shadow-xl); transition: all 0.4s ease; }
.image-frame:hover img { transform: scale(1.03); border-color: var(--primary-400); box-shadow: 0 0 40px rgba(139, 92, 246, 0.3); }

section { padding: 100px 0; position: relative; }
.section-title { text-align: center; margin-bottom: 60px; }
.section-title h2 { font-size: 2.5rem; color: var(--text-primary); position: relative; display: inline-block; margin-bottom: 15px; font-weight: 700; }
.section-title h2::after { content: ""; position: absolute; bottom: -10px; left: 50%; transform: translateX(-50%); width: 80px; height: 4px; background: linear-gradient(90deg, var(--primary-500), var(--secondary-500)); border-radius: 2px; }
.section-title p { color: var(--text-secondary); max-width: 600px; margin: 20px auto 0; font-size: 1.1rem; }

.portals-section { background: rgba(0, 0, 0, 0.02); }
.dark-mode .portals-section { background: rgba(0, 0, 0, 0.2); }
.portals-grid { display: flex; gap: 30px; margin-top: 40px; overflow-x: auto; flex-wrap: nowrap; padding: 20px 10px 40px; scroll-behavior: auto; -webkit-overflow-scrolling: touch; cursor: grab; }
.portals-grid::-webkit-scrollbar { display: none; }
.portals-grid { scrollbar-width: none; -ms-overflow-style: none; }
.portals-grid.grabbing { cursor: grabbing; }
.portal-card { flex: 0 0 350px; border-radius: var(--border-radius-lg); padding: 35px; transition: all 0.4s var(--transition-standard); position: relative; overflow: hidden; display: flex; flex-direction: column; z-index: 1; }
.portal-card::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(236, 72, 153, 0.1)); opacity: 0; transition: opacity 0.4s ease; z-index: -2; }
.portal-card:hover { transform: translateY(-8px); border-color: var(--primary-500); box-shadow: var(--shadow-2xl); }
.portal-card:hover::before { opacity: 1; }
.card-glow { position: absolute; top: -2px; left: -2px; right: -2px; bottom: -2px; background: linear-gradient(45deg, var(--primary-500), var(--secondary-500), var(--accent-blue)); border-radius: calc(var(--border-radius-lg) + 2px); z-index: -1; filter: blur(20px); opacity: 0; transition: opacity 0.4s ease; }
.portal-card:hover .card-glow { opacity: 0.3; }
.portal-icon { width: 64px; height: 64px; border-radius: var(--border-radius-md); display: flex; align-items: center; justify-content: center; font-size: 2rem; margin-bottom: 25px; transition: all 0.3s ease; color: white; }
.portal-card:hover .portal-icon { transform: scale(1.1) rotate(10deg); box-shadow: 0 8px 24px rgba(139, 92, 246, 0.3); }

.portal-card.link-portal .portal-icon, .portal-card.social-library .portal-icon, .portal-card.google-library .portal-icon, .portal-card.microsoft-library .portal-icon { background: linear-gradient(135deg, var(--primary-500), var(--secondary-500)); }
.portal-card.contact .portal-icon { background: linear-gradient(135deg, var(--accent-yellow), var(--accent-green)); }
.portal-card.speed-test .portal-icon, .portal-card.qr-code-generator .portal-icon, .portal-card.barcode-generator .portal-icon, .portal-card.password-generator .portal-icon, .portal-card.extract-color .portal-icon, .portal-card.lucky-draw .portal-icon { background: linear-gradient(135deg, var(--secondary-500), var(--accent-red)); }

.portal-card h3 { font-size: 1.6rem; margin-bottom: 15px; color: var(--text-primary); font-weight: 700; }
.portal-card p { color: var(--text-secondary); margin-bottom: 25px; line-height: 1.6; flex-grow: 1; font-size: 1.05rem; }
.portal-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 25px; }
.portal-tags span { padding: 6px 14px; border-radius: 20px; font-size: 0.8rem; font-weight: 600; background: var(--surface-02); border: 1px solid var(--border-light); color: var(--text-tertiary); transition: all 0.3s ease; }
.portal-card:hover .portal-tags span { background: var(--primary-500); color: white; border-color: var(--primary-500); }
.portal-link { display: inline-flex; align-items: center; justify-content: space-between; padding: 14px 24px; background: var(--surface-02); border: 1px solid var(--border-light); border-radius: var(--border-radius-md); color: var(--text-primary); text-decoration: none; font-weight: 600; transition: all 0.3s ease; margin-top: auto; }
.portal-card:hover .portal-link { background: linear-gradient(135deg, var(--primary-500), var(--secondary-500)); color: white; border-color: transparent; }
.portal-card:hover .portal-link i { transform: translateX(5px); }

.about-badge { padding: 8px 18px; border-radius: 20px; margin-bottom: 20px; display: inline-block; }
.about-badge span { color: var(--primary-600); font-weight: 600; font-size: 14px; }
.about-text h3 { font-size: 2.2rem; margin-bottom: 25px; color: var(--text-primary); font-weight: 800; line-height: 1.3; }
.about-text p { margin-bottom: 20px; font-size: 1.1rem; color: var(--text-secondary); line-height: 1.7; }
.about-features { display: flex; gap: 15px; margin-top: 35px; flex-wrap: wrap; }
.feature { display: flex; align-items: center; gap: 12px; padding: 12px 22px; border-radius: var(--border-radius-md); font-size: 14px; font-weight: 600; transition: all 0.3s ease; color: var(--text-primary); }
.feature:hover { background: var(--primary-500); color: white; transform: translateY(-3px); border-color: transparent; box-shadow: var(--shadow-md); }
.feature:hover i { color: white; }
.feature i { color: var(--primary-500); font-size: 18px; transition: 0.3s; }
.about-image .image-container { position: relative; max-width: 450px; }
.about-image img { width: 100%; border-radius: var(--border-radius-lg); object-fit: cover; border: 1px solid var(--border-light); box-shadow: var(--shadow-xl); transition: 0.4s; }
.about-image img:hover { transform: scale(1.02); box-shadow: var(--shadow-2xl); }

.contact-badge { padding: 8px 18px; border-radius: 20px; margin-bottom: 20px; display: inline-block; }
.contact-badge span { color: var(--primary-600); font-weight: 600; font-size: 14px; }
.contact-info h3 { font-size: 2.2rem; margin-bottom: 35px; color: var(--text-primary); font-weight: 800; }
.contact-details { display: flex; flex-direction: column; gap: 30px; }
.contact-item { display: flex; align-items: flex-start; gap: 20px; }
.contact-icon { width: 55px; height: 55px; border-radius: 16px; display: flex; align-items: center; justify-content: center; color: var(--primary-600); font-size: 1.4rem; flex-shrink: 0; transition: all 0.3s ease; background: var(--surface-02); border: 1px solid var(--border-light); }
.contact-item:hover .contact-icon { background: var(--primary-500); color: white; transform: rotate(10deg) scale(1.1); box-shadow: var(--shadow-md); }
.contact-item.whatsapp-icon .contact-icon { color: #25D366; }
.contact-item.whatsapp-icon:hover .contact-icon { background: #25D366; color: white; }
.contact-text { display: flex; flex-direction: column; gap: 6px; }
.contact-text span:first-child { font-weight: 600; color: var(--text-primary); font-size: 15px; }
.contact-text a, .contact-text span:last-child { color: var(--text-secondary); text-decoration: none; font-size: 1.05rem; transition: 0.3s; }
.contact-text a:hover { color: var(--primary-600); }
.contact-form { padding: 40px; border-radius: var(--border-radius-lg); position: relative; overflow: hidden; }
.form-group { margin-bottom: 22px; }
.form-group input, .form-group textarea { width: 100%; padding: 16px 22px; border: 1.5px solid var(--border-light); border-radius: var(--border-radius-sm); background: var(--surface-02); color: var(--text-primary); font-size: 16px; transition: all 0.3s ease; outline: none; resize: vertical; }
.form-group input:focus, .form-group textarea:focus { border-color: var(--primary-500); box-shadow: 0 0 0 4px rgba(139, 92, 246, 0.15); background: var(--surface-01); }
.whatsapp-button { background: #25D366; color: white !important; border: none; padding: 12px 20px; border-radius: 25px; font-weight: 600; font-size: 0.95rem; cursor: pointer; transition: 0.3s; display: inline-flex; align-items: center; gap: 8px; }
.whatsapp-button:hover { background: #128C7E; transform: translateY(-2px); box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3); }

footer { background: var(--surface-01); border-top: 1px solid var(--border-light); padding: 70px 0 30px; margin-top: 60px; box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.02); }
.footer-main { display: flex; flex-direction: column; gap: 50px; padding-bottom: 40px; }
.footer-info { display: flex; flex-direction: column; gap: 20px; }
.footer-logo { display: flex; align-items: center; gap: 20px; transition: 0.3s; }
.footer-logo:hover { opacity: 0.8; }
.footer-logo img { width: 65px; height: 65px; border-radius: 50%; border: 2px solid var(--primary-500); transition: 0.3s; }
.footer-logo img:hover { transform: rotate(10deg) scale(1.05); border-color: var(--secondary-500); }
.footer-text h3 { color: var(--text-primary); font-weight: 800; font-size: 1.4rem; }
.footer-text p { color: var(--text-secondary); font-size: 0.95rem; }
.footer-description { color: var(--text-tertiary); line-height: 1.6; max-width: 350px; font-size: 1rem; }

.links-column h4 { color: var(--text-primary); margin-bottom: 25px; font-size: 1.1rem; font-weight: 700; position: relative; padding-bottom: 10px; }
.links-column h4::after { content: ''; position: absolute; bottom: 0; left: 0; width: 40px; height: 3px; background: var(--primary-500); border-radius: 2px; }
.links-column ul { list-style: none; display: flex; flex-direction: column; gap: 12px; padding: 0; margin: 0;}
.links-column a { color: var(--text-secondary); text-decoration: none; transition: 0.3s; font-size: 0.95rem; font-weight: 500; }
.links-column a:hover { color: var(--primary-600); transform: translateX(5px); display: inline-block; }

.social-links { display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; }
.social-link { text-decoration: none !important; width: 50px; height: 50px; border-radius: 50%; background: var(--surface-02); border: 1px solid var(--border-light); color: var(--text-secondary); display: flex; align-items: center; justify-content: center; font-size: 1.3rem; transition: 0.3s; }
.social-link::after { display: none !important; }
.social-link:hover { background: var(--primary-500); color: white; transform: translateY(-5px); border-color: transparent; box-shadow: var(--shadow-md); }

.footer-bottom { padding-top: 30px; text-align: center; border-top: 1px solid var(--border-light); }
.footer-bottom p { color: var(--text-tertiary); font-size: 0.95rem; margin: 0; }
.footer-bottom b { background: linear-gradient(135deg, var(--primary-600), var(--secondary-600)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; font-weight: 700; }

.back-to-top { position: fixed; bottom: 30px; right: 30px; width: 52px; height: 52px; background: var(--primary-500); color: white; border-radius: 50%; display: flex; justify-content: center; align-items: center; text-decoration: none; box-shadow: var(--shadow-lg); transition: all 0.3s ease; opacity: 0; visibility: hidden; z-index: 999; }
.back-to-top.active { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--secondary-500); transform: translateY(-5px); }

.mobile-nav { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: var(--surface-01); backdrop-filter: var(--blur-background); -webkit-backdrop-filter: var(--blur-background); z-index: 1001; display: flex; flex-direction: column; align-items: center; justify-content: flex-start; transform: translateX(-100%); transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1); padding: 80px 20px 40px; overflow-y: auto; }
.mobile-nav.active { transform: translateX(0); }
.mobile-nav-close { position: fixed; top: 20px; right: 20px; width: 50px; height: 50px; border-radius: 50%; background: var(--surface-02); border: 1px solid var(--border-light); color: var(--text-primary); font-size: 24px; display: flex; align-items: center; justify-content: center; z-index: 1003; cursor: pointer; transition: 0.3s; }
.mobile-nav-close:hover { background: var(--primary-500); color: white; transform: rotate(90deg); }
.menu-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 10px; z-index: 1002; }
.menu-toggle span { width: 30px; height: 3px; background: var(--text-primary); transition: 0.3s; border-radius: 2px; }
.mobile-menu { width: 100%; max-width: 600px; margin: 0 auto; display: block; }
.nav-links-container { width: 100%; display: block; }
.nav-links-container ul { list-style: none; padding: 0; margin: 0; display: block; width: 100%; }
.nav-links-container>ul>li { display: block; width: 100%; margin-bottom: 15px; }

.nav-links-container a.nav-link, .mobile-resources-header, .mobile-resources-links a {
    display: flex !important; align-items: center !important; width: 100% !important; max-width: 100% !important;
    height: 70px !important; min-height: 70px !important; max-height: 70px !important;
    padding: 0 25px !important; margin: 0 !important; box-sizing: border-box !important;
    background: var(--surface-02) !important; border: 1px solid var(--border-light) !important;
    border-radius: var(--border-radius-md) !important; font-size: 1.15rem !important;
    font-weight: 600 !important; color: var(--text-primary) !important; text-decoration: none !important;
    box-shadow: var(--shadow-sm) !important; line-height: 1 !important;
}
.nav-links-container a.nav-link:active, .mobile-resources-header:active, .mobile-resources-links a:active { background: var(--surface-01) !important; border-color: var(--primary-400) !important; }
.nav-links-container a.nav-link { justify-content: flex-start !important; }
.mobile-resources-header { justify-content: space-between !important; cursor: pointer; }
.mobile-resources-links a { justify-content: flex-start !important; gap: 20px !important; }
.mobile-resources-header i { transition: transform 0.3s ease; pointer-events: none; }
.mobile-resources-header.active i { transform: rotate(180deg); color: var(--primary-600); }
.mobile-resources-links a i { font-size: 1.5rem !important; color: var(--primary-500) !important; width: 35px !important; text-align: left !important; margin: 0 !important; }
.mobile-resources-links { display: none !important; width: 100% !important; padding: 0 !important; margin: 0 !important; }
.mobile-resources-links.active { display: block !important; }
.mobile-resources-links li { display: block !important; width: 100% !important; margin-top: 15px !important; padding: 0 !important; }

.mobile-nav-actions { margin-top: 30px; display: flex; flex-direction: column; gap: 20px; width: 100%; }
.mobile-search-box { position: relative; width: 100%; }
.mobile-search-input { width: 100%; padding: 18px 40px 18px 20px; border-radius: 25px; border: 1.5px solid var(--border-light); background: var(--surface-02); color: var(--text-primary); font-size: 1.05rem; outline: none; }
.mobile-search-box i { position: absolute; right: 20px; top: 50%; transform: translateY(-50%); color: var(--text-secondary); font-size: 1.2rem; }
.action-buttons { display: flex; justify-content: center; }
.mobile-theme-toggle { width: 60px; height: 60px; border-radius: 50%; border: 1px solid var(--border-light); background: var(--surface-02); color: var(--text-secondary); display: flex; justify-content: center; align-items: center; font-size: 1.4rem; }

.highlight { background: var(--highlight-bg); color: var(--highlight-txt); border-radius: 4px; padding: 0 4px; font-weight: bold; }
.success { background-color: rgba(16, 185, 129, 0.1); color: #10b981; border: 1px solid #10b981; padding: 10px; border-radius: 8px; margin-top: 15px; }
.error { background-color: rgba(239, 68, 68, 0.1); color: #ef4444; border: 1px solid #ef4444; padding: 10px; border-radius: 8px; margin-top: 15px; }

@media (max-width: 850px) {
    .menu-toggle { display: flex; }
    .nav-links, .nav-actions { display: none; }
}

@media (max-width: 1024px) {
    .hero-text h1 { font-size: 3rem; }
    .footer-info { align-items: center; text-align: center; }
}

@media (max-width: 768px) {
    .hero-content { text-align: center; }
    .hero-actions, .hero-stats { justify-content: center; }
    .image-frame { width: 320px; height: 320px; }
}

@media (max-width: 480px) {
    .hero-text h1 { font-size: 2.2rem; }
    .section-title h2 { font-size: 2rem; }
    .btn { width: 100%; justify-content: center; }
    .hero-stats { flex-direction: column; gap: 20px; align-items: center; }
    .image-frame { width: 280px; height: 280px; }
    .contact-form { padding: 25px 20px; }
    .links-column h4::after { left: 50%; transform: translateX(-50%); }
    .portal-card { flex: 0 0 85vw; padding: 30px; }
}

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