/* ==========================================
   松鼠Quant 主页样式
   阳光 · 整洁 · 现代
   ========================================== */

/* ==================== CSS Variables ==================== */
:root {
    --primary: #FF8C42;
    --primary-light: #FFA96B;
    --primary-dark: #E67A30;
    --secondary: #3B82F6;
    --secondary-light: #60A5FA;
    --accent: #10B981;
    --accent-light: #34D399;
    --purple: #8B5CF6;
    --pink: #EC4899;

    --gradient-warm: linear-gradient(135deg, #FF8C42 0%, #FDCB6E 50%, #FFD93D 100%);
    --gradient-hero: linear-gradient(135deg, #FFF5EB 0%, #FFF0E0 30%, #E8F4FD 70%, #F0F4FF 100%);
    --gradient-text: linear-gradient(135deg, #FF8C42, #F39C12, #E67E22);
    --gradient-blue: linear-gradient(135deg, #3B82F6, #6366F1);
    --gradient-card: linear-gradient(145deg, #ffffff, #f8fafc);

    --bg-primary: #FFFFFF;
    --bg-secondary: #F8FAFC;
    --bg-tertiary: #F1F5F9;

    --text-primary: #1E293B;
    --text-secondary: #475569;
    --text-muted: #94A3B8;

    --border: #E2E8F0;
    --border-light: #F1F5F9;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 40px rgba(255, 140, 66, 0.15);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==================== Reset & Base ==================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-primary);
    background: var(--bg-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
}

/* ==================== Gradient Text ==================== */
.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==================== Buttons ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-warm);
    color: #fff;
    box-shadow: 0 4px 15px rgba(255, 140, 66, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 140, 66, 0.45);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 140, 66, 0.35);
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1.05rem;
}

/* ==================== Navbar ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.navbar.scrolled {
    padding: 10px 0;
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.06);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 800;
    text-decoration: none;
}

.logo-icon {
    font-size: 1.8rem;
}

.logo-img {
    height: 42px;
    width: auto;
    object-fit: contain;
}

.footer-logo-img {
    height: 48px;
    width: auto;
    object-fit: contain;
    filter: brightness(0) invert(1);
    margin-bottom: 12px;
}

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

.logo-highlight {
    color: var(--primary);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.nav-link {
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    background: rgba(255, 140, 66, 0.08);
}

.nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 22px;
    background: var(--gradient-warm);
    color: #fff !important;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 4px 12px rgba(255, 140, 66, 0.3);
    transition: var(--transition);
}

.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 140, 66, 0.4);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    width: 24px;
    height: 2.5px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* ==================== Hero Section ==================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
    z-index: 0;
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.4;
}

.shape-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 140, 66, 0.15), transparent 70%);
    top: -200px;
    right: -100px;
    animation: float 8s ease-in-out infinite;
}

.shape-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1), transparent 70%);
    bottom: -100px;
    left: -50px;
    animation: float 10s ease-in-out infinite reverse;
}

.shape-3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.08), transparent 70%);
    top: 40%;
    left: 40%;
    animation: float 12s ease-in-out infinite;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(255, 140, 66, 0.1);
    border: 1px solid rgba(255, 140, 66, 0.2);
    border-radius: 50px;
    color: var(--primary-dark);
    font-size: 0.88rem;
    font-weight: 600;
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease;
}

.hero-text h1 {
    font-size: clamp(2.8rem, 5vw, 4.2rem);
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease 0.1s both;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 36px;
    animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-desc strong {
    color: var(--primary);
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 48px;
    animation: fadeInUp 0.6s ease 0.3s both;
}

.hero-stats {
    display: flex;
    gap: 36px;
    animation: fadeInUp 0.6s ease 0.4s both;
}

.stat-item {
    text-align: center;
}

.stat-num {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}

.stat-label {
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-top: 4px;
    display: block;
}

/* Hero Visual - Floating Cards */
.hero-visual {
    position: relative;
    height: 420px;
    animation: fadeInRight 0.8s ease 0.3s both;
}

.hero-card-stack {
    position: relative;
    width: 100%;
    height: 100%;
}

.floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 28px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.8);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
}

.floating-card:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.floating-card i {
    font-size: 1.6rem;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
}

.card-1 {
    top: 10%;
    left: 5%;
    animation: floatCard 6s ease-in-out infinite;
}

.card-1 i {
    background: linear-gradient(135deg, #FF6B6B, #FF8E53);
    color: #fff;
    border-radius: 12px;
}

.card-2 {
    top: 30%;
    right: 5%;
    animation: floatCard 7s ease-in-out infinite 1s;
}

.card-2 i {
    background: linear-gradient(135deg, #6C5CE7, #A29BFE);
    color: #fff;
    border-radius: 12px;
}

.card-3 {
    bottom: 30%;
    left: 10%;
    animation: floatCard 8s ease-in-out infinite 2s;
}

.card-3 i {
    background: linear-gradient(135deg, #00B894, #00CEC9);
    color: #fff;
    border-radius: 12px;
}

.card-4 {
    bottom: 30%;
    right: 0%;
    animation: floatCard 6.5s ease-in-out infinite 0.5s;
}

.card-4 i {
    background: linear-gradient(135deg, #3B82F6, #60A5FA);
    color: #fff;
    border-radius: 12px;
}

.card-5 {
    bottom: 12%;
    left: 5%;
    animation: floatCard 7.5s ease-in-out infinite 1.5s;
}

.card-5 i {
    background: linear-gradient(135deg, #00B894, #00CEC9);
    color: #fff;
    border-radius: 12px;
}

.card-6 {
    bottom: 2%;
    right: 10%;
    animation: floatCard 6s ease-in-out infinite 2.5s;
}

.card-6 i {
    background: linear-gradient(135deg, #FDCB6E, #F39C12);
    color: #fff;
    border-radius: 12px;
}

.hero-scroll {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.hero-scroll a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 2px solid var(--border);
    color: var(--text-muted);
    animation: bounce 2s infinite;
}

/* ==================== Highlights ==================== */
.highlights {
    padding: 60px 0;
    background: var(--bg-primary);
    margin-top: -40px;
    position: relative;
    z-index: 2;
}

.highlights-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 16px;
}

.highlight-item {
    text-align: center;
    padding: 32px 20px;
    border-radius: var(--radius-lg);
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    transition: var(--transition);
}

a.highlight-item.highlight-link {
    display: block;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

.highlight-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

a.highlight-link:hover h3 {
    color: var(--primary);
}

.highlight-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 1.5rem;
    color: #fff;
}

.highlight-item h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.highlight-item p {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* ==================== Section Headers ==================== */
.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 18px;
    background: rgba(255, 140, 66, 0.08);
    border: 1px solid rgba(255, 140, 66, 0.15);
    border-radius: 50px;
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 12px;
    line-height: 1.3;
}

.section-header p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto;
}

/* ==================== Services ==================== */
.services {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.services-grid-6 {
    grid-template-columns: repeat(3, 1fr);
}

.service-card {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: 36px 28px;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: var(--transition);
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-warm);
    opacity: 0;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.service-card:hover::before {
    opacity: 1;
}

.service-card.featured {
    border: 2px solid rgba(108, 92, 231, 0.2);
    background: linear-gradient(145deg, #fff, #F8F7FF);
}

.service-card.featured::before {
    background: var(--gradient-blue);
    opacity: 1;
}

.service-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 4px 12px;
    background: linear-gradient(135deg, #FF6B6B, #FF8E53);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 50px;
}

.service-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: #fff;
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.service-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    flex: 1;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary);
    transition: var(--transition);
}

.service-card:hover .service-link {
    gap: 10px;
}

/* ==================== Articles ==================== */
.articles {
    padding: 100px 0;
    background: var(--bg-primary);
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.article-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
}

.article-category {
    padding: 4px 12px;
    background: rgba(255, 140, 66, 0.1);
    color: var(--primary);
    border-radius: 50px;
    font-size: 0.78rem;
    font-weight: 600;
}

.article-date {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.article-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1.5;
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-card p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.6;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-read {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 16px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--primary);
}

.article-card:hover .article-read {
    gap: 10px;
}

.articles-more {
    text-align: center;
}

/* ==================== Collections ==================== */
.collections {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.collection-filters {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    border: 2px solid var(--border);
    background: var(--bg-primary);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover {
    border-color: var(--primary-light);
    color: var(--primary);
}

.filter-btn.active {
    background: var(--gradient-warm);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(255, 140, 66, 0.3);
}

.collections-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.collection-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.collection-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.collection-card.hidden {
    display: none;
}

.collection-header {
    margin-bottom: 16px;
}

.collection-tag {
    display: inline-block;
    padding: 4px 14px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: 0.5px;
}

.tag-new {
    background: linear-gradient(135deg, #FF6B6B, #FF8E53);
    color: #fff;
}

.tag-2025 {
    background: linear-gradient(135deg, #6C5CE7, #A29BFE);
    color: #fff;
}

.tag-2024 {
    background: linear-gradient(135deg, #00B894, #00CEC9);
    color: #fff;
}

.tag-classic {
    background: linear-gradient(135deg, #636E72, #B2BEC3);
    color: #fff;
}

.tag-special {
    background: linear-gradient(135deg, #FDCB6E, #F39C12);
    color: #fff;
}

.collection-header h3 {
    font-size: 1.08rem;
    font-weight: 700;
    line-height: 1.4;
}

.collection-list {
    list-style: none;
    flex: 1;
    margin-bottom: 16px;
}

.collection-list li {
    padding: 8px 0;
    font-size: 0.88rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: flex-start;
    gap: 8px;
    line-height: 1.5;
}

.collection-list li:last-child {
    border-bottom: none;
}

.collection-list li i {
    color: var(--primary);
    font-size: 0.7rem;
    margin-top: 5px;
    flex-shrink: 0;
}

.collection-list .more-items {
    color: var(--text-muted);
    font-style: italic;
    font-size: 0.82rem;
    padding-left: 0;
}

.collection-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: rgba(255, 140, 66, 0.08);
    border: 1px solid rgba(255, 140, 66, 0.15);
    border-radius: 50px;
    color: var(--primary);
    font-size: 0.88rem;
    font-weight: 600;
    transition: var(--transition);
    align-self: flex-start;
}

.collection-link:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    transform: translateX(4px);
}

/* ==================== Contact ==================== */
.contact {
    padding: 100px 0;
    background: var(--bg-primary);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.contact-card {
    text-align: center;
    padding: 40px 32px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    transition: var(--transition);
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.contact-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
    background: linear-gradient(135deg, #07C160, #06AD56);
    color: #fff;
}

.contact-icon.wechat-personal {
    background: linear-gradient(135deg, #3B82F6, #6366F1);
}

.contact-icon.community {
    background: linear-gradient(135deg, #FF8C42, #FDCB6E);
}

.contact-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.contact-value {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 16px;
}

.qrcode-wrapper {
    margin-top: 16px;
}

.qrcode-placeholder {
    width: 180px;
    height: 180px;
    margin: 0 auto;
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    overflow: hidden;
    color: var(--text-muted);
    background: var(--bg-primary);
}

.qrcode-placeholder i {
    font-size: 2.5rem;
    color: var(--text-muted);
}

.qrcode-placeholder span {
    font-size: 0.88rem;
    font-weight: 600;
}

.qrcode-placeholder small {
    font-size: 0.78rem;
}

.qrcode-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-sm);
}

.qrcode-tip {
    display: block;
    text-align: center;
    margin-top: 10px;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.contact-desc {
    margin-top: 12px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ==================== Footer ==================== */
.footer {
    background: var(--text-primary);
    color: rgba(255, 255, 255, 0.7);
    padding: 60px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-brand .logo-icon {
    font-size: 2rem;
}

.footer-brand .logo-img {
    height: 48px;
    width: auto;
    filter: brightness(0) invert(1);
    margin-bottom: 12px;
}

.footer-brand .logo-text {
    color: #fff;
    font-size: 1.4rem;
    font-weight: 800;
}

.footer-brand p {
    font-size: 0.92rem;
    line-height: 1.6;
}

.footer-slogan {
    color: var(--primary) !important;
    font-weight: 600;
    font-style: italic;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.footer-col h4 {
    color: #fff;
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer-col a {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.88rem;
    color: rgba(255, 255, 255, 0.6);
    padding: 6px 0;
    transition: var(--transition-fast);
}

.footer-col a:hover {
    color: var(--primary);
    transform: translateX(4px);
}

.footer-bottom {
    text-align: center;
    padding: 24px 0;
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.4);
}

/* ==================== Back to Top ==================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient-warm);
    color: #fff;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(255, 140, 66, 0.35);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(255, 140, 66, 0.45);
}

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

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    33% { transform: translate(10px, -15px); }
    66% { transform: translate(-10px, 10px); }
}

@keyframes floatCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

/* Scroll Reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ==================== Responsive ==================== */
@media (max-width: 1200px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .highlights-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-visual {
        display: none;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .highlights-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .collections-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .highlights-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .nav-menu {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 16px;
        z-index: 999;
    }

    .nav-menu.open {
        display: flex;
    }

    .nav-toggle {
        display: flex;
        z-index: 1001;
    }

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

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

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

    .nav-link {
        font-size: 1.2rem;
        padding: 12px 24px;
    }

    .hero {
        padding: 100px 0 60px;
        min-height: auto;
    }

    .hero-text h1 {
        font-size: 2.2rem;
    }

    .hero-stats {
        flex-wrap: wrap;
        gap: 20px;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .articles-grid {
        grid-template-columns: 1fr;
    }

    .collections-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-links {
        grid-template-columns: 1fr 1fr;
    }

    .highlights-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }

    .collection-filters {
        gap: 6px;
    }

    .filter-btn {
        padding: 8px 16px;
        font-size: 0.82rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .highlights-grid {
        grid-template-columns: 1fr;
    }

    .hero-text h1 {
        font-size: 1.8rem;
    }

    .hero-desc {
        font-size: 0.95rem;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .btn-lg {
        padding: 14px 28px;
        font-size: 0.95rem;
    }
}

/* ==================== Loading Animation ==================== */
.articles-grid .loading {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px;
    color: var(--text-muted);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ==================== Smooth Scroll Indicator ==================== */
.hero-scroll a:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* ==================== Selection Color ==================== */
::selection {
    background: rgba(255, 140, 66, 0.2);
    color: var(--text-primary);
}

/* ==================== Scrollbar ==================== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}