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

:root {
    --primary-blue: #0d6efd;
    --primary-dark: #0b5ed7;
    --accent-cyan: #00d4ff;
    --light-gray: #f8fafc;
    --medium-gray: #e2e8f0;
    --text-dark: #0f172a;
    --text-gray: #64748b;
    --text-light: #94a3b8;
    --white: #ffffff;
    --success: #10b981;
    --warning: #f59e0b;
    --gradient-blue: linear-gradient(135deg, #0d6efd 0%, #0dcaf0 100%);
    --gradient-dark: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --shadow-sm: 0 1px 3px rgba(13, 110, 253, 0.06), 0 1px 2px rgba(13, 110, 253, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(13, 110, 253, 0.08), 0 2px 4px -2px rgba(13, 110, 253, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(13, 110, 253, 0.1), 0 4px 6px -4px rgba(13, 110, 253, 0.08);
    --shadow-xl: 0 20px 25px -5px rgba(13, 110, 253, 0.12), 0 8px 10px -6px rgba(13, 110, 253, 0.08);
    --shadow-glow: 0 0 20px rgba(13, 110, 253, 0.2);
    --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-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1)
}

html {
    scroll-behavior: smooth
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--white);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale
}

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

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px
}

.section {
    padding: 100px 0
}

.section-title {
    font-size: 40px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 16px;
    color: var(--text-dark);
    letter-spacing: -0.02em;
    line-height: 1.2
}

.section-subtitle {
    font-size: 18px;
    text-align: center;
    color: var(--text-gray);
    margin-bottom: 64px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7
}

.section-label {
    display: inline-block;
    background: rgba(13, 110, 253, 0.08);
    color: var(--primary-blue);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
    text-align: center;
    width: fit-content;
    margin-left: auto;
    margin-right: auto
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--gradient-blue);
    color: var(--white);
    padding: 15px 36px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden
}

.btn-primary::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: var(--transition-slow)
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl)
}

.btn-primary:hover::before {
    left: 100%
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: transparent;
    color: var(--primary-blue);
    padding: 15px 36px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    border: 2px solid var(--primary-blue);
    cursor: pointer;
    transition: var(--transition)
}

.btn-secondary:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md)
}

.btn-white {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--white);
    color: var(--primary-blue);
    padding: 16px 40px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 14px rgba(0,0,0,0.15)
}

.btn-white:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.2)
}

.btn-outline-white {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: transparent;
    color: var(--white);
    padding: 16px 40px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    border: 2px solid rgba(255,255,255,0.6);
    cursor: pointer;
    transition: var(--transition)
}

.btn-outline-white:hover {
    background: var(--white);
    color: var(--primary-blue);
    border-color: var(--white);
    transform: translateY(-3px)
}

.btn-sm {
    padding: 8px 20px;
    font-size: 13px;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px
}

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

.btn-buy:hover {
    background: var(--primary-dark);
    transform: translateY(-2px)
}

.btn-rent {
    background: transparent;
    color: var(--primary-blue);
    border: 1.5px solid var(--primary-blue)
}

.btn-rent:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px)
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition)
}

.header-scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-md)
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px
}

.logo {
    font-size: 22px;
    font-weight: 800;
    color: var(--primary-blue);
    display: flex;
    align-items: center;
    gap: 10px
}

.logo-icon {
    width: 42px;
    height: 42px;
    background: var(--gradient-blue);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    box-shadow: var(--shadow-sm)
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px
}

.nav-menu a {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-dark);
    position: relative;
    padding: 6px 0;
    letter-spacing: 0.02em
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-blue)
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2.5px;
    background: var(--gradient-blue);
    border-radius: 2px;
    transition: var(--transition)
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%
}

.header-cta {
    background: var(--gradient-blue);
    color: white;
    padding: 10px 24px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-sm)
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
    z-index: 1001
}

.mobile-menu-btn span {
    width: 24px;
    height: 2.5px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: var(--transition)
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px)
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px)
}

.footer {
    background: var(--gradient-dark);
    color: var(--white);
    padding: 80px 0 30px;
    position: relative;
    overflow: hidden
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-blue)
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 48px;
    margin-bottom: 48px
}

.footer-section h3 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--white);
    letter-spacing: 0.02em
}

.footer-section p,
.footer-section a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    line-height: 2.2;
    display: block;
    transition: var(--transition)
}

.footer-section a:hover {
    color: var(--white);
    padding-left: 4px
}

.footer-bottom {
    text-align: center;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.4);
    font-size: 13px
}

.page-hero {
    background: var(--gradient-blue);
    padding: 160px 0 100px;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden
}

.page-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 80%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 60%);
    animation: float 8s ease-in-out infinite
}

.page-hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -20%;
    width: 60%;
    height: 150%;
    background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 60%);
    animation: float 10s ease-in-out infinite reverse
}

.page-hero h1 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
    letter-spacing: -0.02em
}

.page-hero p {
    font-size: 18px;
    opacity: 0.9;
    max-width: 560px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    line-height: 1.7
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg) }
    50% { transform: translateY(-30px) rotate(3deg) }
}

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

@keyframes pulse {
    0%, 100% { transform: scale(1) }
    50% { transform: scale(1.05) }
}

.animate-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease
}

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

.card-hover {
    transition: var(--transition)
}

.card-hover:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl)
}

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

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600
}

.badge-blue {
    background: rgba(13, 110, 253, 0.1);
    color: var(--primary-blue)
}

.badge-green {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success)
}

.badge-orange {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning)
}

@media (max-width: 768px) {
    .section {
        padding: 60px 0
    }

    .section-title {
        font-size: 28px
    }

    .section-subtitle {
        font-size: 15px;
        margin-bottom: 40px
    }

    .page-hero {
        padding: 120px 0 60px
    }

    .page-hero h1 {
        font-size: 30px
    }

    .page-hero p {
        font-size: 15px
    }

    .nav-menu {
        display: none;
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 16px 24px;
        box-shadow: var(--shadow-md);
        gap: 0;
        border-top: 1px solid var(--light-gray)
    }

    .nav-menu.active {
        display: flex
    }

    .nav-menu a {
        padding: 14px 0;
        border-bottom: 1px solid var(--light-gray);
        font-size: 15px
    }

    .nav-menu a:last-child {
        border-bottom: none
    }

    .mobile-menu-btn {
        display: flex
    }

    .header-cta {
        display: none
    }

    .btn-primary,
    .btn-secondary,
    .btn-white,
    .btn-outline-white {
        padding: 12px 28px;
        font-size: 14px
    }

    .container {
        padding: 0 16px
    }
}