/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #0a0a0a;
    overflow-x: hidden;
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: 700;
    color: #00d4ff;
}

.nav-logo i {
    margin-right: 10px;
    font-size: 28px;
}

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

.nav-links a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a:hover {
    color: #00d4ff;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #00d4ff, #0099cc);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

.lang-switch {
    background: linear-gradient(135deg, #00d4ff, #0099cc);
    padding: 8px 16px;
    border-radius: 20px;
    color: #000 !important;
    font-weight: 600;
}

.nav-mobile {
    display: none;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
}

/* 英雄区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #16213e 100%);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(0, 212, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(0, 153, 204, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 40% 80%, rgba(0, 212, 255, 0.05) 0%, transparent 50%);
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.hero-content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #fff;
}

.gradient-text {
    background: linear-gradient(135deg, #00d4ff, #0099cc, #00a8cc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradient-shift 3s ease-in-out infinite;
}

@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #b0b0b0;
    margin-bottom: 40px;
    line-height: 1.6;
}

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

.btn-primary, .btn-secondary {
    padding: 15px 30px;
    border: none;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, #00d4ff, #0099cc);
    color: #000;
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(0, 212, 255, 0.4);
}

.btn-secondary {
    background: transparent;
    color: #00d4ff;
    border: 2px solid #00d4ff;
}

.btn-secondary:hover {
    background: #00d4ff;
    color: #000;
    transform: translateY(-2px);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.code-preview {
    background: rgba(0, 0, 0, 0.8);
    border-radius: 15px;
    border: 1px solid rgba(0, 212, 255, 0.3);
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: code-float 6s ease-in-out infinite;
}

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

.code-header {
    background: rgba(0, 212, 255, 0.1);
    padding: 15px 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    border-bottom: 1px solid rgba(0, 212, 255, 0.2);
}

.code-dots {
    display: flex;
    gap: 8px;
}

.code-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ff5f56;
}

.code-dots span:nth-child(2) {
    background: #ffbd2e;
}

.code-dots span:nth-child(3) {
    background: #27ca3f;
}

.code-title {
    color: #00d4ff;
    font-weight: 600;
    font-size: 14px;
}

.code-content {
    padding: 20px;
    background: #1a1a1a;
    text-align: left;
}

.code-content pre {
    color: #e6e6e6;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 14px;
    line-height: 1.5;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    text-align: left;
    direction: ltr;
}

.code-content pre::-webkit-scrollbar {
    height: 6px;
}

.code-content pre::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

.code-content pre::-webkit-scrollbar-thumb {
    background: rgba(0, 212, 255, 0.5);
    border-radius: 3px;
}

.code-content pre::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 212, 255, 0.7);
}

/* 通用区域样式 */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
    color: #fff;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #00d4ff, #0099cc);
    border-radius: 2px;
}

/* 产品特性 */
.features {
    padding: 100px 0;
    background: #111;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 40px 30px;
    border-radius: 20px;
    border: 1px solid rgba(0, 212, 255, 0.2);
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.feature-card:hover::before {
    left: 100%;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: #00d4ff;
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.2);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #00d4ff, #0099cc);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: #000;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #fff;
}

.feature-card p {
    color: #b0b0b0;
    line-height: 1.6;
}

/* 技术栈 */
.tech-stack {
    padding: 100px 0;
    background: #0a0a0a;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 30px;
    max-width: 800px;
    margin: 0 auto;
}

.tech-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 30px 20px;
    border-radius: 15px;
    text-align: center;
    border: 1px solid rgba(0, 212, 255, 0.2);
    transition: all 0.3s ease;
}

.tech-item:hover {
    transform: translateY(-5px);
    border-color: #00d4ff;
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.2);
}

.tech-item i {
    font-size: 2.5rem;
    color: #00d4ff;
    margin-bottom: 15px;
    display: block;
}

.tech-item span {
    color: #fff;
    font-weight: 600;
    font-size: 14px;
}

/* 解决方案 */
.solutions {
    padding: 100px 0;
    background: #111;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.solution-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 40px 30px;
    border-radius: 20px;
    border: 1px solid rgba(0, 212, 255, 0.2);
    transition: all 0.3s ease;
    position: relative;
}

.solution-card:hover {
    transform: translateY(-10px);
    border-color: #00d4ff;
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.2);
}

.solution-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #00d4ff, #0099cc);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #000;
    margin-bottom: 20px;
}

.solution-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #fff;
}

.solution-card p {
    color: #b0b0b0;
    margin-bottom: 20px;
    line-height: 1.6;
}

.solution-card ul {
    list-style: none;
}

.solution-card li {
    color: #00d4ff;
    margin-bottom: 8px;
    position: relative;
    padding-left: 20px;
}

.solution-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #00d4ff;
    font-weight: bold;
}

/* 客户证言 */
.testimonials {
    padding: 100px 0;
    background: #0a0a0a;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.testimonial-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 40px 30px;
    border-radius: 20px;
    border: 1px solid rgba(0, 212, 255, 0.2);
    transition: all 0.3s ease;
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 30px;
    font-size: 4rem;
    color: #00d4ff;
    font-weight: bold;
    opacity: 0.3;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    border-color: #00d4ff;
    box-shadow: 0 15px 30px rgba(0, 212, 255, 0.2);
}

.testimonial-content p {
    color: #e6e6e6;
    font-style: italic;
    line-height: 1.6;
    margin-bottom: 20px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-info h4 {
    color: #fff;
    font-weight: 600;
    margin-bottom: 5px;
}

.author-info span {
    color: #00d4ff;
    font-size: 14px;
}

/* 表单样式 */
.form-section {
    background: rgba(255, 255, 255, 0.05);
    padding: 30px;
    border-radius: 20px;
    border: 1px solid rgba(0, 212, 255, 0.2);
}

.form-section h3 {
    color: #fff;
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.form-section p {
    color: #b0b0b0;
    margin-bottom: 25px;
    font-size: 14px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group input,
.form-group textarea {
    padding: 15px;
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 10px;
    background: rgba(0, 0, 0, 0.5);
    color: #fff;
    font-size: 16px;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #00d4ff;
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #666;
}

/* 表单按钮居中 */
.contact-form button[type="submit"] {
    width: 100%;
    text-align: center;
    margin-top: 10px;
}

/* 页脚 */
.footer {
    background: #0a0a0a;
    padding: 60px 0 30px;
    border-top: 1px solid rgba(0, 212, 255, 0.2);
}

.footer-content {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 30px;
    gap: 60px;
}

.footer-logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: 700;
    color: #00d4ff;
}

.footer-logo i {
    margin-right: 10px;
    font-size: 28px;
}

.footer-links {
    display: flex;
    gap: 30px;
}

.footer-links a {
    color: #b0b0b0;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #00d4ff;
}


.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: #666;
    font-size: 14px;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    background: #1a1a1a;
    margin: 5% auto;
    padding: 40px;
    border-radius: 20px;
    border: 1px solid rgba(0, 212, 255, 0.3);
    width: 90%;
    max-width: 500px;
    position: relative;
    animation: modal-appear 0.3s ease;
}

@keyframes modal-appear {
    from { opacity: 0; transform: translateY(-50px); }
    to { opacity: 1; transform: translateY(0); }
}

.close {
    position: absolute;
    right: 20px;
    top: 20px;
    color: #fff;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close:hover {
    color: #00d4ff;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 50px;
    }

    .contact-info {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }

    .contact-cta {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .nav-mobile {
        display: block;
    }

    .hero-title {
        font-size: 2.5rem;
    }

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


    .footer-content {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }

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

    .tech-grid {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 20px;
    }

    .section-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .hero-content {
        text-align: center;
    }

    .hero-title {
        font-size: 1.4rem;
        line-height: 1.2;
        white-space: nowrap;
        text-align: center;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .hero-subtitle {
        font-size: 0.95rem;
        line-height: 1.5;
        text-align: left;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }

    .btn-primary,
    .btn-secondary {
        padding: 12px 24px;
        font-size: 14px;
        width: 100%;
        max-width: 280px;
        display: flex;
        align-items: center;
        justify-content: center;
        text-align: center;
    }

    .hero-buttons {
        justify-content: center;
        width: 100%;
    }

    .code-preview {
        width: 100%;
        max-width: 100%;
        margin: 0 auto;
    }

    .code-content {
        padding: 15px;
        text-align: left;
    }

    .code-content pre {
        font-size: 13px;
        line-height: 1.6;
        overflow-x: auto;
        white-space: pre;
        word-break: normal;
        padding: 10px 0;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: thin;
        text-align: left;
        direction: ltr;
    }

    .code-content pre::-webkit-scrollbar {
        height: 6px;
    }

    .code-content pre::-webkit-scrollbar-track {
        background: rgba(255, 255, 255, 0.1);
        border-radius: 3px;
    }

    .code-content pre::-webkit-scrollbar-thumb {
        background: rgba(0, 212, 255, 0.5);
        border-radius: 3px;
    }

    .code-content pre::-webkit-scrollbar-thumb:hover {
        background: rgba(0, 212, 255, 0.7);
    }

    .section-title {
        font-size: 1.6rem;
    }

    .modal-content {
        margin: 5% auto;
        padding: 20px 15px;
        width: 95%;
    }


    .tech-item {
        padding: 20px 15px;
    }

    .tech-item i {
        font-size: 2rem;
    }

    .feature-card,
    .solution-card,
    .testimonial-card {
        padding: 30px 20px;
    }

    .hero-content {
        padding: 0 10px;
    }
}