/* ============================================
   靓丫头 - AI Agent 运营专家
   让每个人都能用AI赚钱
   ============================================ */

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #f59e0b;
    --dark: #1e293b;
    --light: #f8fafc;
    --gray: #64748b;
    --white: #ffffff;
    --gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
}

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

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background: var(--light);
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* ============================================
   Header & Navigation
   ============================================ */

header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    color: var(--gray);
    font-weight: 500;
    transition: color 0.3s;
}

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

.btn-contact {
    background: var(--gradient);
    color: var(--white) !important;
    padding: 8px 20px;
    border-radius: 25px;
}

.mobile-menu {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    padding: 140px 0 80px;
    background: linear-gradient(180deg, #eef2ff 0%, var(--light) 100%);
}

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

.hero-content h1 {
    font-size: 3rem;
    line-height: 1.2;
    margin-bottom: 20px;
}

.highlight {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--gray);
    margin-bottom: 30px;
}

.hero-buttons {
    display: flex;
    gap: 15px;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 30px;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4);
}

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

.btn-secondary:hover {
    background: var(--primary);
    color: var(--white);
}

.btn-outline {
    border: 2px solid var(--primary);
    color: var(--primary);
    padding: 12px 30px;
    border-radius: 30px;
    font-weight: 600;
}

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

.btn-large {
    padding: 16px 40px;
    font-size: 1.1rem;
}

.hero-visual {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.floating-card {
    background: var(--white);
    padding: 30px 20px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    animation: float 3s ease-in-out infinite;
}

.floating-card:nth-child(2) {
    animation-delay: 0.5s;
}

.floating-card:nth-child(3) {
    animation-delay: 1s;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 15px;
}

.card-text {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--dark);
}

/* ============================================
   Services Preview
   ============================================ */

.services-preview {
    padding: 80px 0;
    background: var(--white);
}

.services-preview h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--light);
    padding: 35px 25px;
    border-radius: 20px;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.15);
}

.service-icon {
    font-size: 3.5rem;
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.service-card p {
    color: var(--gray);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.price {
    display: inline-block;
    background: var(--gradient);
    color: var(--white);
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: 600;
}

.text-center {
    text-align: center;
    margin-top: 40px;
}

/* ============================================
   Why Me Section
   ============================================ */

.why-me {
    padding: 80px 0;
    background: linear-gradient(180deg, var(--light) 0%, #eef2ff 100%);
}

.why-me h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.feature {
    background: var(--white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
}

.feature-number {
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary);
    opacity: 0.2;
    margin-bottom: -20px;
}

.feature h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.feature p {
    color: var(--gray);
    line-height: 1.8;
}

/* ============================================
   CTA Section
   ============================================ */

.cta {
    padding: 100px 0;
    background: var(--gradient);
    text-align: center;
    color: var(--white);
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.cta p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 30px;
}

.cta .btn-primary {
    background: var(--white);
    color: var(--primary);
}

.cta .btn-primary:hover {
    background: var(--secondary);
    color: var(--white);
}

/* ============================================
   Footer
   ============================================ */

footer {
    background: var(--dark);
    color: var(--white);
    padding: 60px 0 20px;
}

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

.footer-brand .logo {
    font-size: 1.5rem;
    color: var(--white);
    margin-bottom: 10px;
    display: block;
}

.footer-brand p {
    color: var(--gray);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.footer-links a {
    color: var(--gray);
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--white);
}

.footer-contact p {
    color: var(--gray);
    margin-bottom: 10px;
}

.footer-contact a {
    color: var(--primary);
}

.footer-contact code {
    background: rgba(255,255,255,0.1);
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.85rem;
    display: block;
    margin-top: 5px;
    word-break: break-all;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 20px;
    text-align: center;
    color: var(--gray);
    font-size: 0.9rem;
}

/* ============================================
   Services Page
   ============================================ */

.page-header {
    padding: 140px 0 60px;
    background: linear-gradient(180deg, #eef2ff 0%, var(--light) 100%);
    text-align: center;
}

.page-header h1 {
    font-size: 2.8rem;
    margin-bottom: 15px;
}

.page-header p {
    font-size: 1.2rem;
    color: var(--gray);
}

.services-section {
    padding: 80px 0;
}

.service-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
    padding: 50px;
    background: var(--white);
    border-radius: 30px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
}

.service-detail:nth-child(even) {
    direction: rtl;
}

.service-detail:nth-child(even) > * {
    direction: ltr;
}

.service-detail h2 {
    font-size: 2rem;
    margin-bottom: 20px;
}

.service-detail p {
    color: var(--gray);
    font-size: 1.1rem;
    margin-bottom: 25px;
}

.service-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.tag {
    background: var(--light);
    color: var(--primary);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
}

.service-emoji {
    font-size: 8rem;
    text-align: center;
}

/* ============================================
   About Page
   ============================================ */

.about-section {
    padding: 80px 0;
}

.about-content {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 60px;
    align-items: start;
}

.about-avatar {
    width: 100%;
    aspect-ratio: 1;
    background: var(--gradient);
    border-radius: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8rem;
}

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 25px;
}

.about-text p {
    color: var(--gray);
    font-size: 1.1rem;
    margin-bottom: 20px;
    line-height: 1.8;
}

.skills-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-top: 30px;
}

.skill-item {
    background: var(--light);
    padding: 15px 20px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.skill-item span:first-child {
    font-size: 1.5rem;
}

.skill-item span:last-child {
    font-weight: 500;
}

/* ============================================
   Contact Page
   ============================================ */

.contact-section {
    padding: 80px 0;
}

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

.contact-info {
    background: var(--gradient);
    padding: 50px;
    border-radius: 30px;
    color: var(--white);
}

.contact-info h2 {
    font-size: 2rem;
    margin-bottom: 30px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
}

.contact-item span:first-child {
    font-size: 2rem;
}

.contact-item p {
    opacity: 0.9;
}

.contact-form {
    background: var(--white);
    padding: 50px;
    border-radius: 30px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid #e2e8f0;
    border-radius: 15px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.submit-btn {
    width: 100%;
    padding: 16px;
    background: var(--gradient);
    color: var(--white);
    border: none;
    border-radius: 15px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s;
}

.submit-btn:hover {
    transform: translateY(-2px);
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 992px) {
    .hero .container {
        grid-template-columns: 1fr;
    }
    
    .hero-visual {
        max-width: 400px;
        margin: 0 auto;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .service-detail {
        grid-template-columns: 1fr;
    }
    
    .service-detail:nth-child(even) {
        direction: ltr;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-avatar {
        max-width: 300px;
        margin: 0 auto;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu {
        display: block;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-visual {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .skills-list {
        grid-template-columns: 1fr;
    }
}