/* 新的现代化样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1e293b;
    background-color: #f1f5f9;
    overflow-x: hidden;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: #0f172a;
}

h1 {
    font-size: 3rem;
    font-weight: 800;
}

h2 {
    font-size: 2.25rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
    color: #475569;
}

.gradient-text {
    background: linear-gradient(90deg, #0ea5e9 0%, #3b82f6 50%, #6366f1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.btn-primary {
    background: linear-gradient(90deg, #0ea5e9 0%, #3b82f6 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.4);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(14, 165, 233, 0.6);
}

.btn-secondary {
    background: transparent;
    color: #0ea5e9;
    border: 2px solid #0ea5e9;
}

.btn-secondary:hover {
    background: #0ea5e9;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(14, 165, 233, 0.3);
}

.btn-large {
    padding: 16px 36px;
    font-size: 1.1rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.nav-logo h2 {
    background: linear-gradient(90deg, #0ea5e9 0%, #3b82f6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
    font-size: 2rem;
    font-weight: 800;
}

.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 2.5rem;
}

.nav-link {
    text-decoration: none;
    color: #334155;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
    padding: 8px 0;
}

.nav-link:hover {
    color: #0ea5e9;
}

.nav-link.cta-button {
    background: linear-gradient(90deg, #0ea5e9 0%, #3b82f6 100%);
    color: white;
    padding: 12px 24px;
    border-radius: 12px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(14, 165, 233, 0.3);
}

.nav-link.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(14, 165, 233, 0.5);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: #334155;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, #dbeafe 0%, #e0f2fe 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 200%;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.1) 0%, rgba(59, 130, 246, 0.1) 100%);
    transform: rotate(45deg);
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 2;
}

.hero-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: #0f172a;
    letter-spacing: -0.03em;
}

.hero-description {
    font-size: 1.25rem;
    color: #334155;
    margin-bottom: 2rem;
    line-height: 1.7;
    font-weight: 400;
    max-width: 650px;
}

.hero-features {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: #334155;
    font-weight: 500;
}

.feature-item i {
    color: #0ea5e9;
    font-size: 1.25rem;
    background: rgba(14, 165, 233, 0.1);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.hero-image {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-img {
    width: 100%;
    max-width: 500px;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
    position: relative;
    z-index: 2;
}

/* About Section */
.about {
    padding: 100px 0;
    background: white;
    text-align: center;
}

.about-content h2 {
    color: #0f172a;
    margin-bottom: 1.5rem;
}

.about-content p {
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto;
    color: #475569;
}

/* Stats Section */
.stats {
    padding: 80px 0;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.1) 0%, rgba(59, 130, 246, 0.1) 100%);
    z-index: 1;
}

.stats .container {
    position: relative;
    z-index: 2;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2.5rem;
    text-align: center;
}

.stat-item {
    padding: 2.5rem 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
    background: linear-gradient(90deg, #0ea5e9 0%, #3b82f6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.9;
    font-weight: 500;
}

/* Section Header */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    color: #0f172a;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto;
    color: #475569;
}

/* Features Section */
.features {
    padding: 100px 0;
    position: relative;
    background: #f1f5f9;
    overflow: hidden;
}

.features .container {
    position: relative;
    z-index: 2;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
}

.feature-card {
    background: white;
    padding: 2.5rem 2rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid rgba(0, 0, 0, 0.03);
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #dbeafe 0%, #e0f2fe 100%);
    border-radius: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 1.5rem;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(14, 165, 233, 0.2);
}

.feature-icon i {
    font-size: 2rem;
    color: #0ea5e9;
}

.feature-card h3 {
    color: #0f172a;
    margin-bottom: 1rem;
}

.feature-card p {
    line-height: 1.6;
    color: #475569;
}

/* Advantages Section */
.advantages {
    padding: 100px 0;
    background: white;
}

.advantages-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: start;
}

.advantages-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.advantage-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 2rem;
    background: #f8fafc;
    border-radius: 16px;
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.03);
    position: relative;
    overflow: hidden;
}

.advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
    border-color: rgba(14, 165, 233, 0.2);
}

.advantage-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #dbeafe 0%, #e0f2fe 100%);
    border-radius: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(14, 165, 233, 0.2);
}

.advantage-icon i {
    font-size: 1.5rem;
    color: #0ea5e9;
}

.advantage-text h3 {
    color: #0f172a;
    margin-bottom: 0.5rem;
}

.advantages-highlights {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    width: 100%;
}

.highlight-card {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: white;
    padding: 2.5rem 2rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 15px 35px rgba(30, 41, 59, 0.3);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.highlight-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 45px rgba(30, 41, 59, 0.4);
}

.highlight-card i {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #38bdf8;
}

.highlight-card h4 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: white;
}

.highlight-card p {
    font-size: 1rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.5;
    margin: 0;
}

.disclaimer {
    margin-top: 3rem;
    text-align: center;
}

.disclaimer p {
    font-style: italic;
    color: #64748b;
}

/* FAQ Section */
.faq {
    padding: 100px 0;
    background: #f1f5f9;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: 16px;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.03);
}

.faq-question {
    padding: 1.75rem 2.25rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: #f8fafc;
}

.faq-question h3 {
    color: #0f172a;
    font-size: 1.1rem;
    margin: 0;
    font-weight: 600;
}

.faq-question i {
    color: #0ea5e9;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 2.25rem;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding: 0 2.25rem 1.75rem;
}

.faq-answer p {
    color: #475569;
    line-height: 1.6;
}

/* CTA Section */
.cta {
    padding: 120px 0;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 80%, rgba(14, 165, 233, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 80% 20%, rgba(59, 130, 246, 0.15) 0%, transparent 40%);
    pointer-events: none;
}

.cta .container {
    position: relative;
    z-index: 2;
}

.cta-content h2 {
    color: white;
    font-size: 2.8rem;
    margin-bottom: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.cta-content p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 3rem;
    color: #cbd5e1;
}

.cta-features {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.cta-feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.05);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    backdrop-filter: blur(10px);
}

.cta-feature i {
    color: #38bdf8;
    font-size: 1.2rem;
}

/* Footer */
.footer {
    background: #0f172a;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand h3 {
    background: linear-gradient(90deg, #0ea5e9 0%, #3b82f6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 2rem;
    margin-bottom: 1rem;
}

.footer-brand p {
    color: #cbd5e1;
    line-height: 1.6;
}

.footer-links h4 {
    color: white;
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-links a:hover {
    color: #38bdf8;
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 2rem;
    text-align: center;
}

.footer-bottom p {
    color: #9ca3af;
    margin: 0;
}

/* Cookie Consent Styles */
.cookie-consent {
    position: fixed;
    bottom: 20px;
    left: 20px;
    right: 20px;
    background: rgba(15, 23, 42, 0.95);
    color: white;
    padding: 25px;
    border-radius: 16px;
    z-index: 10000;
    display: none;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.cookie-consent .cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.cookie-consent p {
    margin: 0;
    flex: 1;
    min-width: 300px;
    font-size: 0.95rem;
    line-height: 1.6;
}

.cookie-consent .cookie-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.cookie-consent .btn {
    margin: 0;
    padding: 12px 24px;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.cookie-consent .btn-primary {
    background: linear-gradient(90deg, #0ea5e9 0%, #3b82f6 100%);
    color: white;
    box-shadow: 0 4px 20px rgba(14, 165, 233, 0.4);
    border: none;
}

.cookie-consent .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(14, 165, 233, 0.6);
}

.cookie-consent .btn-secondary {
    background: transparent;
    color: #38bdf8;
    border: 2px solid #38bdf8;
}

.cookie-consent .btn-secondary:hover {
    background: rgba(56, 189, 248, 0.1);
    transform: translateY(-3px);
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }

    .hero-content {
        align-items: center;
    }

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

    .advantages-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }

    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .hero-title {
        font-size: 2.75rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background-color: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(10px);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
        gap: 1.5rem;
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero {
        padding: 130px 0 70px;
    }

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

    .advantages-list {
        gap: 1.5rem;
    }

    .advantage-item {
        padding: 1.5rem;
    }

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

    .cta-features {
        flex-direction: column;
        gap: 1.5rem;
    }

    .cookie-consent .cookie-content {
        flex-direction: column;
        text-align: center;
    }

    .cookie-consent p {
        min-width: 100%;
    }

    .cookie-consent .cookie-buttons {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero {
        padding: 110px 0 50px;
    }

    .hero-title {
        font-size: 2.25rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .hero-cta {
        flex-direction: column;
        gap: 1rem;
    }

    .btn {
        width: 100%;
    }

    .feature-card {
        padding: 2rem 1.5rem;
    }

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

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    .cta-content h2 {
        font-size: 2.25rem;
    }

    .cta-content p {
        font-size: 1rem;
    }
}