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

:root {
    --primary-color: #00f0ff;
    --secondary-color: #7b2ff7;
    --accent-color: #ff006e;
    --dark-bg: #0a0a0f;
    --darker-bg: #050508;
    --card-bg: #12121a;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --gradient-primary: linear-gradient(135deg, #00f0ff 0%, #7b2ff7 100%);
    --gradient-secondary: linear-gradient(135deg, #7b2ff7 0%, #ff006e 100%);
    --shadow-glow: 0 0 30px rgba(0, 240, 255, 0.3);
    --shadow-card: 0 10px 40px rgba(0, 0, 0, 0.5);
    --border-glow: 1px solid rgba(0, 240, 255, 0.2);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    z-index: 1000;
    border-bottom: var(--border-glow);
    padding: 15px 0;
    transition: all 0.3s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo h1 {
    font-size: 24px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 2px;
}

.nav-logo span {
    font-size: 12px;
    color: var(--text-secondary);
    letter-spacing: 2px;
}

.nav-menu {
    display: flex;
    gap: 40px;
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 5px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    width: 30px;
}

.nav-toggle span {
    width: 100%;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ===== 英雄区域 ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, var(--darker-bg) 0%, var(--dark-bg) 100%);
}

#particles-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    padding: 0 20px;
    animation: fadeInUp 1s ease;
}

.hero-title {
    font-size: 72px;
    font-weight: 700;
    margin-bottom: 30px;
    letter-spacing: 4px;
    line-height: 1.2;
}

.title-line {
    display: block;
    margin: 10px 0;
}

.title-line.highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 40px rgba(0, 240, 255, 0.5);
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 50px;
    letter-spacing: 3px;
}

.hero-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 50px;
}

.btn {
    padding: 15px 40px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--dark-bg);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 50px rgba(0, 240, 255, 0.5);
}

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

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--dark-bg);
    transform: translateY(-3px);
}

.btn-block {
    width: 100%;
}

.contact-highlight {
    display: inline-flex;
    align-items: center;
    gap: 15px;
    padding: 20px 40px;
    background: rgba(0, 240, 255, 0.1);
    border: var(--border-glow);
    border-radius: 10px;
    animation: pulse 2s infinite;
}

.contact-highlight i {
    font-size: 28px;
    color: var(--primary-color);
}

.contact-highlight span {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: 2px;
}

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
    color: var(--primary-color);
    font-size: 24px;
}

/* ===== 通用区块样式 ===== */
section {
    padding: 120px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 15px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    letter-spacing: 3px;
    margin-bottom: 20px;
}

.section-line {
    width: 80px;
    height: 3px;
    background: var(--gradient-primary);
    margin: 0 auto;
    position: relative;
}

.section-line::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 10px;
    height: 10px;
    background: var(--primary-color);
    border-radius: 50%;
    box-shadow: 0 0 20px var(--primary-color);
}

/* ===== 服务项目 ===== */
.services {
    background: var(--darker-bg);
}

.services-carousel {
    position: relative;
}

.carousel-container {
    position: relative;
    overflow: hidden;
}

.carousel-track {
    display: flex;
    gap: 30px;
    transition: transform 0.5s ease;
}

.service-card {
    flex: 0 0 calc(25% - 22.5px);
    background: var(--card-bg);
    border: var(--border-glow);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.5s ease;
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: opacity 0.5s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-glow);
}

.service-card:hover::before {
    opacity: 0.05;
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    font-size: 32px;
    color: var(--dark-bg);
    position: relative;
    z-index: 1;
}

.service-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
}

.service-card p {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.service-features {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.service-features span {
    padding: 6px 12px;
    background: rgba(0, 240, 255, 0.1);
    border: 1px solid rgba(0, 240, 255, 0.3);
    border-radius: 20px;
    font-size: 12px;
    color: var(--primary-color);
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background: var(--card-bg);
    border: var(--border-glow);
    border-radius: 50%;
    color: var(--primary-color);
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 10;
}

.carousel-btn:hover {
    background: var(--gradient-primary);
    color: var(--dark-bg);
}

.carousel-btn.prev {
    left: -25px;
}

.carousel-btn.next {
    right: -25px;
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 40px;
}

.carousel-dot {
    width: 12px;
    height: 12px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
}

.carousel-dot.active {
    background: var(--primary-color);
    box-shadow: 0 0 10px var(--primary-color);
}

/* ===== 典型案例 ===== */
.cases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.case-item {
    background: var(--card-bg);
    border: var(--border-glow);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.5s ease;
    position: relative;
}

.case-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-card);
}

.case-image {
    height: 300px;
    background: linear-gradient(135deg, rgba(0, 240, 255, 0.1) 0%, rgba(123, 47, 247, 0.1) 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.case-image::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent 40%,
        rgba(0, 240, 255, 0.1) 50%,
        transparent 60%
    );
    animation: shine 3s infinite;
}

.case-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.case-item:hover .case-overlay {
    opacity: 1;
}

.case-overlay i {
    font-size: 48px;
    color: var(--primary-color);
    transform: scale(0.8);
    transition: transform 0.3s ease;
}

.case-item:hover .case-overlay i {
    transform: scale(1);
}

.case-content {
    padding: 30px;
}

.case-content h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.case-content p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
}

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

.case-tags span {
    padding: 6px 15px;
    background: var(--gradient-primary);
    border-radius: 20px;
    font-size: 12px;
    color: var(--dark-bg);
    font-weight: 600;
}

/* ===== 技术优势 ===== */
.technology {
    background: var(--darker-bg);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 80px;
}

.tech-item {
    background: var(--card-bg);
    border: var(--border-glow);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.5s ease;
    position: relative;
    overflow: hidden;
}

.tech-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.5s ease;
}

.tech-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-glow);
}

.tech-item:hover::before {
    transform: scaleX(1);
}

.tech-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, rgba(0, 240, 255, 0.2) 0%, rgba(123, 47, 247, 0.2) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 28px;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

.tech-item:hover .tech-icon {
    background: var(--gradient-primary);
    color: var(--dark-bg);
    transform: scale(1.1);
}

.tech-item h3 {
    font-size: 20px;
    margin-bottom: 15px;
}

.tech-item p {
    color: var(--text-secondary);
    line-height: 1.8;
}

.tech-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.stat-item {
    text-align: center;
    padding: 40px;
    background: var(--card-bg);
    border: var(--border-glow);
    border-radius: 20px;
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.1) 0%, transparent 70%);
    animation: rotate 10s linear infinite;
}

.stat-number {
    font-size: 64px;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
    position: relative;
}

.stat-label {
    font-size: 16px;
    color: var(--text-secondary);
    position: relative;
}

/* ===== 联系我们 ===== */
.contact {
    position: relative;
    overflow: hidden;
}

.contact-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, rgba(123, 47, 247, 0.1) 0%, var(--dark-bg) 100%);
}

#contact-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    position: relative;
    z-index: 2;
}

.contact-item {
    display: flex;
    gap: 20px;
    padding: 30px;
    background: var(--card-bg);
    border: var(--border-glow);
    border-radius: 15px;
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.contact-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-glow);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--dark-bg);
    flex-shrink: 0;
}

.contact-details h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.contact-details p {
    color: var(--text-secondary);
}

.phone-number {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color) !important;
}

.contact-form {
    background: var(--card-bg);
    border: var(--border-glow);
    border-radius: 20px;
    padding: 40px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    background: var(--darker-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 15px;
    transition: all 0.3s ease;
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 20px rgba(0, 240, 255, 0.2);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.4);
}

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

.contact-highlight-box {
    margin-top: 60px;
    position: relative;
    z-index: 2;
}

.highlight-content {
    background: var(--gradient-primary);
    padding: 40px;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow-glow);
}

.highlight-content i {
    font-size: 48px;
    color: var(--dark-bg);
    margin-bottom: 15px;
}

.highlight-content h3 {
    font-size: 24px;
    color: var(--dark-bg);
    margin-bottom: 10px;
}

.highlight-phone {
    font-size: 48px;
    font-weight: 700;
    color: var(--dark-bg);
    letter-spacing: 3px;
}

/* ===== 页脚 ===== */
.footer {
    background: var(--darker-bg);
    padding: 80px 0 30px;
    border-top: var(--border-glow);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 60px;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-section p {
    color: var(--text-secondary);
    margin-bottom: 10px;
    line-height: 1.8;
}

.footer-links,
.footer-contact {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary-color);
    padding-left: 10px;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

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

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 45px;
    height: 45px;
    background: var(--card-bg);
    border: var(--border-glow);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 20px;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--gradient-primary);
    color: var(--dark-bg);
    transform: translateY(-5px);
}

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

.footer-bottom p {
    color: var(--text-secondary);
}

/* ===== 动画效果 ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 20px rgba(0, 240, 255, 0.3);
    }
    50% {
        box-shadow: 0 0 40px rgba(0, 240, 255, 0.5);
    }
}

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

@keyframes shine {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* ===== 响应式设计 ===== */
@media (max-width: 1200px) {
    .hero-title {
        font-size: 56px;
    }

    .service-card {
        flex: 0 0 calc(33.333% - 20px);
    }

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

@media (max-width: 992px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--darker-bg);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        transition: left 0.3s ease;
    }

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

    .nav-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 48px;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 768px) {
    .hero-title {
        font-size: 36px;
    }

    .section-title {
        font-size: 36px;
    }

    .service-card {
        flex: 0 0 calc(50% - 15px);
    }

    .carousel-btn {
        display: none;
    }

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

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

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 28px;
        letter-spacing: 2px;
    }

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

    .service-card {
        flex: 0 0 100%;
    }

    .hero-subtitle {
        font-size: 14px;
    }

    .contact-highlight span {
        font-size: 22px;
    }

    .tech-stats {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .highlight-phone {
        font-size: 32px;
    }
}

/* ===== 滚动条样式 ===== */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--darker-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}