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

:root {
    --primary-color: #1e40af;
    --primary-light: #2563eb;
    --primary-dark: #1e3a8a;
    --secondary-color: #0891b2;
    --accent-color: #ea580c;
    --success-color: #059669;
    --danger-color: #dc2626;
    --warning-color: #d97706;
    --bg-light: #ffffff;
    --bg-gray: #f8fafc;
    --bg-card: #ffffff;
    --text-dark: #0f172a;
    --text-light: #475569;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.15);
    --gradient-primary: linear-gradient(135deg, #1e40af 0%, #0891b2 100%);
    --gradient-hero: linear-gradient(135deg, #0f172a 0%, #1e3a8a 50%, #0891b2 100%);
    --gradient-accent: linear-gradient(135deg, #ea580c 0%, #dc2626 100%);
    --gradient-success: linear-gradient(135deg, #059669 0%, #10b981 100%);
    --gradient-gold: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --gradient-blue: linear-gradient(135deg, #1e40af 0%, #2563eb 100%);
    --gradient-cyan: linear-gradient(135deg, #0891b2 0%, #06b6d4 100%);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 50%, #f1f5f9 100%);
    background-attachment: fixed;
    color: var(--text-dark);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
}

.navbar-brand {
    display: flex;
    align-items: center;
    text-decoration: none;
    gap: 12px;
}

.logo-img {
    height: 40px;
    width: 40px;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.logo-text {
    font-size: 22px;
    font-weight: 800;
    background: linear-gradient(135deg, #1e40af 0%, #0891b2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.navbar-brand:hover .logo-img {
    transform: scale(1.05);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 3px;
    transition: all 0.3s ease;
}

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

.nav-menu li a {
    color: var(--text-dark);
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 10px;
    font-weight: 500;
    font-size: 15px;
    transition: all 0.3s ease;
    display: block;
}

.nav-menu li a:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-2px);
}

.nav-menu li a.nav-highlight {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.nav-menu li a.nav-highlight:hover {
    background: linear-gradient(135deg, #d97706 0%, #b45309 100%);
    box-shadow: 0 6px 16px rgba(245, 158, 11, 0.4);
    transform: translateY(-2px);
}

/* 面包屑导航 */
.breadcrumb {
    background: var(--bg-gray);
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.breadcrumb-list li {
    display: flex;
    align-items: center;
}

.breadcrumb-list li a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.breadcrumb-list li a:hover {
    color: var(--primary-color);
}

.breadcrumb-list .separator {
    color: var(--text-muted);
    margin: 0 4px;
    user-select: none;
}

.hero-mini {
    background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 50%, #0891b2 100%);
    padding: 60px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-mini::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(rgba(30, 64, 175, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(30, 64, 175, 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
    z-index: 0;
}

.hero-mini::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at top, rgba(30, 64, 175, 0.2) 0%, transparent 50%),
        radial-gradient(ellipse at bottom right, rgba(8, 145, 178, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at bottom left, rgba(234, 88, 12, 0.1) 0%, transparent 50%);
    z-index: 0;
}

@keyframes gridMove {
    0% {
        background-position: 0 0;
    }
    100% {
        background-position: 50px 50px;
    }
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    z-index: 0;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 50%;
    animation: float 15s infinite ease-in-out;
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
        opacity: 0;
    }
    10% {
        opacity: 0.6;
    }
    90% {
        opacity: 0.6;
    }
    100% {
        transform: translateY(-100vh) translateX(50px);
        opacity: 0;
    }
}

.hero-mini .container {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 42px;
    font-weight: 800;
    color: white;
    margin-bottom: 16px;
    position: relative;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.2);
}

.hero-title .highlight {
    background: linear-gradient(135deg, #ea580c 0%, #dc2626 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 24px;
    position: relative;
}

.hero-badges {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    position: relative;
}

.badge {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 8px 20px;
    border-radius: 50px;
    color: white;
    font-size: 14px;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.badge:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-top: 40px;
    flex-wrap: wrap;
    position: relative;
}

.stat-item {
    text-align: center;
    padding: 24px 32px;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15) 0%, rgba(255, 255, 255, 0.05) 100%);
    backdrop-filter: blur(20px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    min-width: 140px;
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.stat-item:hover::before {
    left: 100%;
}

.stat-item:hover {
    transform: translateY(-8px) scale(1.05);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.25) 0%, rgba(255, 255, 255, 0.1) 100%);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
}

.stat-icon {
    font-size: 32px;
    margin-bottom: 12px;
    display: inline-block;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.stat-value {
    display: block;
    font-size: 32px;
    font-weight: 900;
    color: white;
    margin-bottom: 6px;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    background: linear-gradient(135deg, #ffffff 0%, #e0e7ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    display: block;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.plans-section {
    padding: 80px 0;
    background: white;
    position: relative;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.title-badge {
    display: inline-block;
    background: var(--gradient-gold);
    color: white;
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
}

.section-title h2 {
    font-size: 36px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.section-title p {
    font-size: 16px;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.plans-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    position: relative;
}

.plan-card {
    background: white;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    border: 1px solid rgba(0, 0, 0, 0.06);
}

.plan-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.plan-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(30, 64, 175, 0.05), transparent);
    transition: left 0.6s ease;
    pointer-events: none;
}

.plan-card:hover::after {
    left: 100%;
}

.plan-card:hover {
    transform: translateY(-16px) scale(1.02);
    box-shadow: 0 25px 60px rgba(30, 64, 175, 0.25);
    border-color: rgba(30, 64, 175, 0.3);
}

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

.plan-card.recommended {
    border: 2px solid #f59e0b;
    transform: scale(1.05);
    z-index: 10;
    box-shadow: 0 25px 70px rgba(245, 158, 11, 0.3);
}

.plan-card.recommended::before {
    opacity: 1;
    background: var(--gradient-orange);
}

.plan-card.recommended:hover {
    transform: scale(1.05) translateY(-16px);
    box-shadow: 0 30px 80px rgba(245, 158, 11, 0.35);
}

.plan-badge {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    text-align: center;
    padding: 12px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 10px rgba(245, 158, 11, 0.3);
}

.plan-header {
    padding: 48px 24px 28px;
    text-align: center;
    background: linear-gradient(180deg, #fafbfc 0%, #ffffff 100%);
    position: relative;
}

.plan-card.recommended .plan-header {
    background: linear-gradient(180deg, #fffbeb 0%, #ffffff 100%);
}

.plan-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #1e40af 0%, #0891b2 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    margin: 0 auto 20px;
    box-shadow: 0 12px 30px rgba(30, 64, 175, 0.35);
    transition: transform 0.3s ease;
}

.plan-card:hover .plan-icon {
    transform: scale(1.1) rotate(5deg);
}

.plan-title {
    font-size: 24px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 12px;
    letter-spacing: -0.5px;
}

.plan-capacity {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.plan-capacity strong {
    color: var(--primary-color);
    font-size: 15px;
}

.capacity-icon {
    font-size: 16px;
}

.plan-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
    margin-top: 8px;
}

.plan-price .currency {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary-color);
}

.plan-price .amount {
    font-size: 56px;
    font-weight: 900;
    background: linear-gradient(135deg, #1e40af 0%, #0891b2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    letter-spacing: -2px;
}

.plan-price .period {
    font-size: 15px;
    color: var(--text-muted);
    font-weight: 500;
}

.plan-body {
    padding: 0 24px 24px;
}

.plan-features {
    list-style: none;
}

.plan-features li {
    padding: 14px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    font-size: 14px;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all 0.3s ease;
}

.plan-features li:hover {
    padding-left: 4px;
    color: var(--text-dark);
}

.plan-features li:last-child {
    border-bottom: none;
}

.plan-features .check {
    width: 22px;
    height: 22px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
    flex-shrink: 0;
}

.plan-features .check.star {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    font-size: 14px;
}

.plan-features .highlight-item {
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
    margin: 8px -24px;
    padding: 14px 24px;
    border-radius: 12px;
    border: none;
    color: #92400e;
    font-weight: 600;
}

.plan-features .highlight-item:hover {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
}

.plan-footer {
    padding: 0 24px 28px;
}

.plan-btn {
    display: block;
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    color: var(--text-dark);
    text-align: center;
    text-decoration: none;
    border-radius: 14px;
    font-weight: 700;
    font-size: 15px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.plan-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.plan-btn:hover::before {
    left: 100%;
}

.plan-btn:hover {
    background: linear-gradient(135deg, #1e40af 0%, #0891b2 100%);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(30, 64, 175, 0.4);
}

.plan-btn.primary {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.4);
    font-size: 16px;
}

.plan-btn.primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(245, 158, 11, 0.5);
}

.steps-section {
    padding: 80px 0;
    background: white;
}

.steps-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.step-card {
    background: white;
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    flex: 1;
    min-width: 250px;
    max-width: 300px;
    position: relative;
    border: 1px solid var(--border-color);
}

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

.step-number {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 30px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
}

.step-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.step-card h4 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.step-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
}

.step-arrow {
    font-size: 32px;
    color: var(--primary-color);
    font-weight: 300;
}

.why-section {
    padding: 80px 0;
    background: white;
}

.why-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.why-card {
    background: white;
    border-radius: 20px;
    padding: 32px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

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

.why-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.why-card h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.why-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
}

.revenue-section {
    padding: 80px 0;
    background: white;
}

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

.revenue-card {
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    border-radius: 20px;
    padding: 32px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    cursor: pointer;
    text-decoration: none;
    display: block;
}

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

.revenue-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.revenue-card h4 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.revenue-card p {
    font-size: 14px;
    color: var(--text-light);
}

.contact-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.contact-info {
    padding: 20px;
}

.contact-desc {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 32px;
}

.contact-qq-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-qq-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.contact-qq-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
}

.qq-icon {
    font-size: 24px;
}

.qq-label {
    font-size: 15px;
    color: var(--text-muted);
    font-weight: 500;
}

.qq-number {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.qq-number:hover {
    color: var(--primary-dark);
}

.contact-qrcode {
    display: flex;
    justify-content: center;
    align-items: center;
}

.qrcode-wrapper {
    background: white;
    padding: 24px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    text-align: center;
    border: 1px solid var(--border-color);
}

.qrcode-img {
    width: 240px;
    height: 240px;
    border-radius: 12px;
}

.qrcode-tip {
    margin-top: 16px;
    font-size: 14px;
    color: var(--text-muted);
    font-weight: 500;
}

.footer {
    background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 50%, #0891b2 100%);
    padding: 60px 0 0;
    color: rgba(255, 255, 255, 0.8);
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
    position: relative;
    z-index: 1;
}

.footer-brand {
    max-width: 400px;
}

.footer-logo-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-logo {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    object-fit: contain;
    background: rgba(255, 255, 255, 0.1);
    padding: 8px;
    transition: transform 0.3s ease;
}

.footer-logo:hover {
    transform: rotate(5deg) scale(1.1);
}

.footer-name {
    font-size: 24px;
    font-weight: 800;
    background: linear-gradient(135deg, #ffffff 0%, rgba(255, 255, 255, 0.8) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-tagline {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 12px;
    font-weight: 600;
}

.footer-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.footer-column {
    min-width: 150px;
}

.footer-title {
    color: white;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: linear-gradient(90deg, #1e40af 0%, #0891b2 100%);
    border-radius: 2px;
}

.footer-link {
    display: flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    padding: 10px 0;
    font-size: 14px;
    transition: all 0.3s ease;
}

.footer-link svg {
    opacity: 0.6;
    transition: all 0.3s ease;
}

.footer-link:hover {
    color: white;
    padding-left: 8px;
}

.footer-link:hover svg {
    opacity: 1;
    transform: translateX(2px);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.footer-column {
    min-width: 150px;
}

.footer-title {
    color: white;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: linear-gradient(90deg, #1e40af 0%, #0891b2 100%);
    border-radius: 2px;
}

.footer-link {
    display: flex;
    align-items: center;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    padding: 10px 0;
    font-size: 14px;
    transition: all 0.3s ease;
}

.footer-link:hover {
    color: white;
    padding-left: 8px;
}

.footer-bottom {
    position: relative;
    z-index: 1;
}

.footer-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.2) 50%, transparent 100%);
    margin-bottom: 20px;
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    flex-wrap: wrap;
    gap: 16px;
}

.copyright {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

.icp-link {
    display: flex;
    align-items: center;
    gap: 6px;
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    font-size: 13px;
    transition: all 0.3s ease;
}

.icp-link:hover {
    color: rgba(255, 255, 255, 0.8);
}

.icp-link svg {
    opacity: 0.6;
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 1200px) {
    .plans-row {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .plan-card.recommended {
        transform: scale(1);
    }
    
    .plan-card.recommended:hover {
        transform: translateY(-16px);
    }
    
    .plan-price .amount {
        font-size: 48px;
    }
}

@media (max-width: 992px) {
    .why-row {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .revenue-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 65px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .hero-title {
        font-size: 28px;
    }
    
    .hero-subtitle {
        font-size: 14px;
    }
    
    .plans-row {
        grid-template-columns: 1fr;
    }
    
    .plan-card.recommended {
        transform: none;
        order: -1;
    }
    
    .steps-row {
        flex-direction: column;
    }
    
    .step-arrow {
        transform: rotate(90deg);
    }
    
    .step-card {
        max-width: 100%;
    }
    
    .why-row {
        grid-template-columns: 1fr;
    }
    
    .revenue-row {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-qrcode {
        order: -1;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-stats {
        gap: 16px;
    }
    
    .stat-item {
        padding: 18px 24px;
        min-width: 100px;
    }
    
    .stat-icon {
        font-size: 24px;
        margin-bottom: 8px;
    }
    
    .stat-value {
        font-size: 24px;
    }
    
    .stat-label {
        font-size: 11px;
    }
    
    .section-title h2 {
        font-size: 28px;
    }
    
    .float-cta {
        bottom: 80px;
        right: 20px;
        padding: 14px 20px;
        font-size: 14px;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
    }
}

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

.article-card {
    background: white;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    display: flex;
    flex-direction: column;
}

.article-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.article-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(30, 64, 175, 0.15);
    border-color: rgba(30, 64, 175, 0.2);
}

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

.article-card-header {
    padding: 28px 28px 0;
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.article-icon-wrapper {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.article-card:hover .article-icon-wrapper {
    transform: scale(1.1) rotate(5deg);
}

.article-card-header-content {
    flex: 1;
    min-width: 0;
}

.article-category {
    display: inline-block;
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    color: var(--primary-color);
    padding: 5px 12px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    margin-bottom: 10px;
}

.article-title {
    font-size: 18px;
    font-weight: 800;
    color: var(--text-dark);
    margin: 0;
    line-height: 1.5;
    transition: color 0.3s ease;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-card:hover .article-title {
    color: var(--primary-color);
}

.article-card-body {
    padding: 20px 28px;
    flex: 1;
}

.article-desc {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-card-footer {
    padding: 16px 28px 24px;
    border-top: 1px solid rgba(0, 0, 0, 0.04);
    background: linear-gradient(180deg, transparent 0%, rgba(248, 250, 252, 0.5) 100%);
}

.article-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: var(--text-muted);
}

.article-meta-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.article-date, .article-reading {
    display: flex;
    align-items: center;
    gap: 6px;
}

.article-date::before {
    content: '📅';
    font-size: 12px;
}

.article-reading::before {
    content: '⏱️';
    font-size: 12px;
}

.article-read-more {
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: gap 0.3s ease;
}

.article-read-more:hover {
    gap: 8px;
}

.article-read-more::after {
    content: '→';
    transition: transform 0.3s ease;
}

.article-card:hover .article-read-more::after {
    transform: translateX(4px);
}

.article-link {
    display: contents;
    text-decoration: none;
    color: inherit;
}

.article-content {
    background: white;
    border-radius: 24px;
    padding: 56px;
    margin-bottom: 40px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
    line-height: 1.9;
    position: relative;
}

.article-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: var(--gradient-primary);
    border-radius: 24px 24px 0 0;
}

.article-content h2 {
    font-size: 26px;
    font-weight: 800;
    color: var(--text-dark);
    margin: 48px 0 24px;
    padding-bottom: 16px;
    border-bottom: 3px solid var(--primary-color);
    position: relative;
    padding-left: 20px;
}

.article-content h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 19px;
    width: 5px;
    background: var(--gradient-primary);
    border-radius: 3px;
}

.article-content h2:first-child {
    margin-top: 0;
}

.article-content h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-dark);
    margin: 36px 0 16px;
    padding-left: 16px;
    border-left: 4px solid var(--secondary-color);
}

.article-content p {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 20px;
    text-align: justify;
}

.article-content ul, .article-content ol {
    margin: 24px 0;
    padding-left: 0;
    list-style: none;
}

.article-content ul {
    counter-reset: ul-counter;
}

.article-content ul > li {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 14px;
    line-height: 1.8;
    padding-left: 32px;
    position: relative;
}

.article-content ul > li::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 10px;
    width: 8px;
    height: 8px;
    background: var(--gradient-primary);
    border-radius: 50%;
}

.article-content ol {
    counter-reset: ol-counter;
}

.article-content ol > li {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 14px;
    line-height: 1.8;
    padding-left: 40px;
    position: relative;
}

.article-content ol > li::before {
    counter-increment: ol-counter;
    content: counter(ol-counter);
    position: absolute;
    left: 0;
    top: 2px;
    width: 28px;
    height: 28px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
}

.article-content li {
    font-size: 16px;
    color: var(--text-light);
    margin-bottom: 12px;
    line-height: 1.8;
}

.article-content strong {
    color: var(--text-dark);
    font-weight: 600;
}

.article-content .highlight-box {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    border: none;
    border-left: 5px solid var(--primary-color);
    padding: 24px 28px;
    border-radius: 0 16px 16px 0;
    margin: 28px 0;
    position: relative;
}

.article-content .highlight-box::before {
    content: '💡';
    position: absolute;
    top: -12px;
    left: 20px;
    font-size: 24px;
    background: white;
    padding: 4px 8px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.article-content .highlight-box p {
    margin-bottom: 0;
    color: var(--text-dark);
    margin-top: 8px;
}

.article-content .warning-box {
    background: linear-gradient(135deg, #fffbeb 0%, #fef3c7 100%);
    border: none;
    border-left: 5px solid var(--warning-color);
    padding: 24px 28px;
    border-radius: 0 16px 16px 0;
    margin: 28px 0;
    position: relative;
}

.article-content .warning-box::before {
    content: '⚠️';
    position: absolute;
    top: -12px;
    left: 20px;
    font-size: 24px;
    background: white;
    padding: 4px 8px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.article-content .warning-box p {
    margin-bottom: 0;
    color: #92400e;
    margin-top: 8px;
}

.article-content .success-box {
    background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
    border: none;
    border-left: 5px solid var(--success-color);
    padding: 24px 28px;
    border-radius: 0 16px 16px 0;
    margin: 28px 0;
    position: relative;
}

.article-content .success-box::before {
    content: '✅';
    position: absolute;
    top: -12px;
    left: 20px;
    font-size: 24px;
    background: white;
    padding: 4px 8px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.article-content .success-box p {
    margin-bottom: 0;
    color: #065f46;
    margin-top: 8px;
}

.article-content table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin: 28px 0;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.article-content th, .article-content td {
    padding: 18px 24px;
    text-align: left;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.article-content th {
    background: linear-gradient(135deg, #1e40af 0%, #2563eb 100%);
    font-weight: 700;
    color: white;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.article-content td {
    font-size: 15px;
    color: var(--text-light);
    background: white;
}

.article-content tr:nth-child(even) td {
    background: #f8fafc;
}

.article-content tr:hover td {
    background: #f0f9ff;
}

.article-content tr:last-child td {
    border-bottom: none;
}

.article-sidebar {
    position: sticky;
    top: 100px;
}

.sidebar-card {
    background: white;
    border-radius: 20px;
    padding: 28px;
    margin-bottom: 24px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.sidebar-title {
    font-size: 16px;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 20px;
    padding-bottom: 14px;
    border-bottom: 3px solid var(--primary-color);
    position: relative;
}

.sidebar-title::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--secondary-color);
}

.sidebar-links {
    list-style: none;
}

.sidebar-links li {
    margin-bottom: 8px;
}

.sidebar-links a {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-light);
    text-decoration: none;
    padding: 12px 16px;
    border-radius: 12px;
    transition: all 0.3s ease;
    font-size: 14px;
    border: 1px solid transparent;
}

.sidebar-links a:hover {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    color: var(--primary-color);
    border-color: rgba(30, 64, 175, 0.2);
    transform: translateX(4px);
}

.sidebar-links a.active {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
}

.article-page-wrapper {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 40px;
    align-items: start;
}

@media (max-width: 992px) {
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .article-page-wrapper {
        grid-template-columns: 1fr;
    }
    
    .article-sidebar {
        position: static;
    }
}

@media (max-width: 768px) {
    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    .article-content {
        padding: 28px;
    }
    
    .article-content h2 {
        font-size: 22px;
        padding-left: 16px;
    }
    
    .article-content h3 {
        font-size: 18px;
    }
}

.reading-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, #1e40af, #0891b2, #ea580c);
    z-index: 9999;
    transition: width 0.1s ease-out;
    box-shadow: 0 0 10px rgba(30, 64, 175, 0.5);
}

.article-meta-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    padding: 20px 28px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-radius: 16px;
    margin-bottom: 32px;
    border: 1px solid var(--border-color);
}

.article-meta-info {
    display: flex;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.article-meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-light);
}

.article-meta-item .meta-icon {
    font-size: 15px;
}

.article-share-btns {
    display: flex;
    gap: 8px;
}

.share-btn {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: all 0.3s ease;
    text-decoration: none;
}

.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.share-btn.wechat:hover { background: #07c160; color: white; border-color: #07c160; }
.share-btn.qq:hover { background: #12b7f5; color: white; border-color: #12b7f5; }
.share-btn.link:hover { background: var(--primary-color); color: white; border-color: var(--primary-color); }

.article-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 48px;
}

.article-nav-card {
    display: flex;
    flex-direction: column;
    padding: 24px;
    background: white;
    border-radius: 18px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.article-nav-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.article-nav-card:hover::before {
    transform: scaleX(1);
}

.article-nav-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(30, 64, 175, 0.2);
}

.article-nav-label {
    font-size: 12px;
    font-weight: 700;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.article-nav-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-dark);
    line-height: 1.5;
}

.article-nav-card.next {
    text-align: right;
}

.article-nav-card.next .article-nav-title {
    text-align: right;
}

.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #1e40af 0%, #0891b2 100%);
    color: white;
    border: none;
    border-radius: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 999;
    box-shadow: 0 8px 25px rgba(30, 64, 175, 0.35);
}

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

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 35px rgba(30, 64, 175, 0.45);
}

.sidebar-links a.active-toc {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
    font-weight: 600;
}

.toc-progress {
    height: 3px;
    background: var(--border-color);
    border-radius: 2px;
    margin-bottom: 16px;
    overflow: hidden;
}

.toc-progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: width 0.2s ease;
    width: 0%;
}

.articles-section {
    position: relative;
}

.articles-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(30, 64, 175, 0.06) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.article-card .article-number-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 32px;
    height: 32px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 800;
    opacity: 0;
    transform: scale(0.5);
    transition: all 0.3s ease;
}

.article-card:hover .article-number-badge {
    opacity: 1;
    transform: scale(1);
}

.article-tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}

.article-tag {
    display: inline-block;
    padding: 3px 10px;
    background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
    border-radius: 20px;
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 500;
    transition: all 0.3s ease;
}

.article-tag:hover {
    background: var(--gradient-primary);
    color: white;
}

.article-content pre,
.article-content code {
    font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
}

.article-content pre {
    background: #0f172a;
    border-radius: 14px;
    padding: 24px;
    overflow-x: auto;
    margin: 28px 0;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.article-content pre code {
    background: none;
    color: #e2e8f0;
    font-size: 14px;
    line-height: 1.7;
    padding: 0;
}

.article-content code {
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    color: var(--primary-color);
    padding: 3px 8px;
    border-radius: 6px;
    font-size: 0.88em;
}

.article-content pre .copy-code-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 6px 14px;
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    font-size: 12px;
    cursor: pointer;
    font-family: inherit;
    transition: all 0.3s ease;
}

.article-content pre .copy-code-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.article-content pre .copy-code-btn.copied {
    background: #059669;
    color: white;
    border-color: #059669;
}

.article-content blockquote {
    margin: 28px 0;
    padding: 24px 28px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border-left: 4px solid var(--primary-color);
    border-radius: 0 16px 16px 0;
    font-style: italic;
    color: var(--text-light);
    position: relative;
}

.article-content blockquote p {
    margin-bottom: 0;
    color: var(--text-light);
}

.article-content img {
    max-width: 100%;
    border-radius: 14px;
    margin: 28px 0;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.1);
}

.article-content hr {
    border: none;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
    margin: 40px 0;
}

.article-cta-box {
    background: linear-gradient(135deg, #1e40af 0%, #0891b2 100%);
    border-radius: 20px;
    padding: 36px;
    margin-top: 48px;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.article-cta-box::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.article-cta-box h3 {
    color: white !important;
    font-size: 22px !important;
    border: none !important;
    padding: 0 !important;
    margin-bottom: 12px !important;
}

.article-cta-box p {
    color: rgba(255, 255, 255, 0.9) !important;
    margin-bottom: 24px !important;
}

.article-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: white;
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 12px;
    font-weight: 700;
    font-size: 15px;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.article-cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
}

.float-cta {
    position: fixed;
    bottom: 100px;
    right: 32px;
    padding: 14px 24px;
    background: linear-gradient(135deg, #ea580c 0%, #dc2626 100%);
    color: white;
    text-decoration: none;
    border-radius: 14px;
    font-weight: 700;
    font-size: 14px;
    box-shadow: 0 8px 30px rgba(234, 88, 12, 0.4);
    z-index: 998;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    animation: floatCtaPulse 2s ease-in-out infinite;
}

.float-cta:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 40px rgba(234, 88, 12, 0.5);
}

@keyframes floatCtaPulse {
    0%, 100% { box-shadow: 0 8px 30px rgba(234, 88, 12, 0.4); }
    50% { box-shadow: 0 8px 40px rgba(234, 88, 12, 0.6); }
}

@media (max-width: 768px) {
    .float-cta {
        bottom: 80px;
        right: 20px;
        padding: 12px 18px;
        font-size: 13px;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
    }

    .article-nav {
        grid-template-columns: 1fr;
    }

    .article-nav-card.next {
        text-align: left;
    }

    .article-nav-card.next .article-nav-title {
        text-align: left;
    }

    .article-meta-bar {
        flex-direction: column;
        align-items: flex-start;
    }

    .article-share-btns {
        width: 100%;
        justify-content: flex-start;
    }
}