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

html {
    position: relative;
    min-height: 100%;
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 50%, #0d1229 100%);
    color: #e0e6ed;
    overflow-x: hidden;
    padding-top: 80px;
}

/* 粒子背景 */
.particles-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: rgba(0, 212, 255, 0.6);
    border-radius: 50%;
    animation: float 15s infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-100vh) rotate(720deg);
        opacity: 0;
    }
}

/* 流星背景 */
.meteors-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.meteor {
    position: absolute;
    width: 2px;
    height: 2px;
    background: linear-gradient(90deg, #00d4ff, transparent);
    border-radius: 50%;
    box-shadow: 0 0 10px #00d4ff, 0 0 20px #00d4ff, 0 0 30px #7b2fff;
    animation: meteor-fall linear infinite;
    opacity: 0;
}

.meteor::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 150px;
    height: 2px;
    background: linear-gradient(90deg, transparent, #00d4ff, #7b2fff);
    transform-origin: left center;
    transform: translateX(-100%) rotate(-45deg);
    opacity: 0.8;
}

@keyframes meteor-fall {
    0% {
        transform: translateX(-100px) translateY(-100px);
        opacity: 0;
    }
    5% {
        opacity: 1;
    }
    15% {
        opacity: 1;
    }
    100% {
        transform: translateX(calc(100vw + 300px)) translateY(calc(100vh + 300px));
        opacity: 0;
    }
}

/* 星空背景 */
.stars-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    overflow: hidden;
}

.star {
    position: absolute;
    width: 2px;
    height: 2px;
    background: white;
    border-radius: 50%;
    animation: twinkle 2s ease-in-out infinite;
}

@keyframes twinkle {
    0%, 100% {
        opacity: 0.3;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.5);
    }
}

/* 导航栏 */
.tech-nav {
    background: rgba(10, 14, 39, 0.95);
    border-bottom: 2px solid #00d4ff;
    box-shadow: 0 2px 30px rgba(0, 212, 255, 0.3);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    width: 100%;
}

.navbar-brand {
    font-size: 1.8rem;
    font-weight: bold;
    background: linear-gradient(90deg, #00d4ff, #7b2fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
}

.nav-link {
    color: #e0e6ed !important;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #00d4ff, #7b2fff);
    transition: width 0.3s ease;
}

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

.nav-link:hover {
    color: #00d4ff !important;
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
}

.navbar-nav .nav-item {
    margin-left: 12px;
}

.navbar-nav .nav-item:first-child {
    margin-left: 0;
}

/* 流光文字效果 */
.gradient-text {
    display: inline-block;
    position: relative;
    background: linear-gradient(90deg, #00d4ff, #7b2fff, #ff2d92, #00d4ff);
    background-size: 300% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer 3s linear infinite;
}

/* 图标保持原始颜色，不受渐变影响 */
.gradient-text::before {
    content: attr(data-icon);
    position: absolute;
    left: 0;
    top: 0;
    background: none;
    -webkit-text-fill-color: initial;
    -webkit-background-clip: border-box;
    background-clip: border-box;
    color: inherit;
}

@keyframes shimmer {
    0% {
        background-position: 0% 50%;
    }
    100% {
        background-position: 300% 50%;
    }
}

/* 跑马灯效果 */
.marquee-container {
    overflow: hidden;
    white-space: nowrap;
    margin: 10px auto 30px;
    padding: 10px 0;
}

.marquee-text {
    display: inline-block;
    color: #a0aab5;
    font-size: 1.1rem;
    animation: marquee 20s linear infinite;
    padding-left: 100%;
}

@keyframes marquee {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-100%);
    }
}

/* Hero区域 */

/* Hero区域 */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 2rem;
}

.hero-content {
    text-align: center;
    z-index: 1;
}

.hero-title {
    font-size: 4rem;
    font-weight: bold;
    background: linear-gradient(135deg, #00d4ff, #7b2fff, #ff2d92);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: glow 2s ease-in-out infinite alternate;
    margin-bottom: 1rem;
}

@keyframes glow {
    from {
        text-shadow: 0 0 20px rgba(0, 212, 255, 0.5), 0 0 40px rgba(123, 47, 255, 0.3);
    }
    to {
        text-shadow: 0 0 30px rgba(0, 212, 255, 0.8), 0 0 60px rgba(123, 47, 255, 0.5);
    }
}

.hero-subtitle {
    font-size: 1.5rem;
    color: #a0aab5;
    margin-bottom: 2rem;
}

.hero-tagline {
    font-size: 1.2rem;
    color: #7b2fff;
    margin-bottom: 3rem;
    letter-spacing: 3px;
    text-transform: uppercase;
}

/* 轮播横幅 */
.banner-section {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-top: -80px;
    padding-top: 80px;
}

/* 引擎交流群 */
.group-section {
    padding: 80px 0;
    background: linear-gradient(135deg, rgba(26, 31, 58, 0.8), rgba(13, 18, 41, 0.9));
    border-top: 1px solid rgba(0, 212, 255, 0.1);
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.section-subtitle {
    text-align: center;
    color: #a0aab5;
    font-size: 1.1rem;
    margin-top: 10px;
    margin-bottom: 50px;
}

.group-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.group-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 20px;
    padding: 30px 20px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    height: 170px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.group-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #00d4ff, #7b2fff);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.group-card:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 212, 255, 0.5);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.2);
}

.group-card:hover::before {
    opacity: 1;
}

.group-type {
    position: absolute;
    top: 20px;
    right: 20px;
}

.type-badge {
    background: linear-gradient(135deg, #00d4ff, #7b2fff);
    color: white;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.group-icon {
    display: none;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

.group-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
    background: linear-gradient(135deg, #00d4ff, #7b2fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.group-description {
    display: none;
}

.group-number {
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 10px;
    padding: 8px 12px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: center;
}

.group-number span {
    color: #a0aab5;
    font-size: 14px;
}

.group-number code {
    background: rgba(0, 0, 0, 0.3);
    padding: 6px 12px;
    border-radius: 6px;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    color: #00d4ff;
    font-weight: 600;
    letter-spacing: 1px;
}

.copy-btn {
    background: rgba(0, 212, 255, 0.2);
    border: 1px solid rgba(0, 212, 255, 0.5);
    color: #00d4ff;
    padding: 6px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    display: inline-block;
    transition: all 0.3s ease;
}

.copy-btn:hover {
    background: rgba(0, 212, 255, 0.4);
    transform: translateY(-2px);
}

.group-qr {
    display: none;
}

/* 核心优势 */
.core-advantage-section {
    padding: 80px 0;
    background: linear-gradient(135deg, rgba(26, 31, 58, 0.8), rgba(13, 18, 41, 0.9));
    border-top: 1px solid rgba(0, 212, 255, 0.1);
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.core-advantage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.core-advantage-item {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.core-advantage-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #00d4ff, #7b2fff);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.core-advantage-item:hover {
    transform: translateY(-10px);
    border-color: rgba(0, 212, 255, 0.5);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.2);
}

.core-advantage-item:hover::before {
    opacity: 1;
}

.core-icon {
    font-size: 64px;
    margin-bottom: 20px;
    animation: pulse 2s ease-in-out infinite;
}

.core-advantage-item h3 {
    font-size: 24px;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #00d4ff, #7b2fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.core-advantage-item p {
    color: #a0aab5;
    font-size: 15px;
    line-height: 1.6;
}

/* 下载GOM引擎 - 首页 */
.download-home-section {
    padding: 80px 0;
    background: linear-gradient(135deg, rgba(26, 31, 58, 0.8), rgba(13, 18, 41, 0.9));
    border-top: 1px solid rgba(0, 212, 255, 0.1);
}

.download-home-card {
    max-width: 800px;
    margin: 0 auto;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
    backdrop-filter: blur(20px);
    border: 2px solid rgba(0, 212, 255, 0.3);
    border-radius: 20px;
    padding: 50px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.download-home-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #00d4ff, #7b2fff, #ff2d92);
}

.version-badge {
    display: inline-block;
    background: linear-gradient(90deg, #00d4ff, #7b2fff);
    color: white;
    padding: 8px 24px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 20px;
}

.version-title {
    font-size: 36px;
    color: #fff;
    margin-bottom: 15px;
    font-weight: bold;
}

.version-desc {
    color: #a0aab5;
    font-size: 16px;
    margin-bottom: 40px;
    line-height: 1.6;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    margin-top: 19px;
    flex-wrap: wrap;
}

.download-btn {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(123, 47, 255, 0.2));
    border: 2px solid rgba(0, 212, 255, 0.5);
    color: #00d4ff;
    padding: 15px 30px;
    border-radius: 12px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
}

.download-btn:hover {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.4), rgba(123, 47, 255, 0.4));
    border-color: #00d4ff;
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
}

.btn-icon {
    font-size: 24px;
}

.download-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    padding-top: 30px;
    border-top: 1px solid rgba(0, 212, 255, 0.2);
    margin-bottom: 30px;
}

.info-item {
    text-align: center;
}

.info-label {
    display: block;
    color: #a0aab5;
    font-size: 13px;
    margin-bottom: 8px;
}

.info-value {
    color: #00d4ff;
    font-size: 18px;
    font-weight: 600;
}

.more-downloads {
    text-align: center;
}

.more-link {
    color: #00d4ff;
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.more-link:hover {
    color: #7b2fff;
    text-decoration: underline;
}


.banner-slider {
    width: 100%;
    height: 100%;
}

.banner-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.banner-item.active {
    opacity: 1;
}

.banner-content {
    text-align: center;
    z-index: 1;
    max-width: 800px;
    padding: 2rem;
}

.banner-content h1 {
    font-size: 3.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.banner-content h1 .gradient-text {
    background: linear-gradient(135deg, #00d4ff, #7b2fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.banner-content h1 span:not(.gradient-text) {
    -webkit-text-fill-color: initial;
    background: none;
}

.banner-content p {
    font-size: 1.5rem;
    color: #a0aab5;
    margin-bottom: 2rem;
}

.banner-content p span {
    -webkit-text-fill-color: initial;
    background: none;
}

.banner-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.banner-dots {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.5rem;
}

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

.banner-dots .dot.active {
    background: #00d4ff;
    box-shadow: 0 0 10px rgba(0, 212, 255, 0.8);
}

/* 科技按钮 */
.tech-btn {
    background: linear-gradient(135deg, #00d4ff, #7b2fff);
    border: none;
    color: white;
    padding: 1rem 3rem;
    font-size: 1.1rem;
    font-weight: bold;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.4);
    text-decoration: none;
    display: inline-block;
}

.tech-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(0, 212, 255, 0.6);
    color: white;
}

.tech-btn-outline {
    background: transparent;
    border: 2px solid #00d4ff;
    color: #00d4ff;
    padding: 1rem 3rem;
    font-size: 1.1rem;
    font-weight: bold;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.tech-btn-outline:hover {
    background: #00d4ff;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(0, 212, 255, 0.6);
}

/* 产品优势 */
.advantage-section,
.pricing-section,
.scenario-section,
.testimonial-section {
    padding: 5rem 2rem;
}

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

.advantage-grid,
.pricing-grid,
.scenario-grid,
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.advantage-item {
    text-align: center;
    padding: 2rem;
    background: rgba(26, 31, 58, 0.8);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 15px;
    transition: all 0.3s ease;
}

.advantage-item:hover {
    transform: translateY(-5px);
    border-color: #00d4ff;
    box-shadow: 0 10px 40px rgba(0, 212, 255, 0.3);
}

.advantage-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.advantage-item h3 {
    color: #00d4ff;
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.advantage-item p {
    color: #a0aab5;
    line-height: 1.6;
}

/* 价格方案 */
.pricing-card {
    background: rgba(26, 31, 58, 0.8);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 15px;
    padding: 2rem;
    transition: all 0.3s ease;
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-5px);
    border-color: #00d4ff;
    box-shadow: 0 10px 40px rgba(0, 212, 255, 0.3);
}

.pricing-card.popular {
    border-color: #7b2fff;
    transform: scale(1.05);
}

.pricing-card.popular:hover {
    transform: scale(1.05) translateY(-5px);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(90deg, #7b2fff, #ff2d92);
    color: white;
    padding: 0.3rem 1.5rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: bold;
}

.pricing-header {
    text-align: center;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.pricing-header h3 {
    color: #fff;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.pricing-price {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.pricing-price .currency {
    font-size: 1.5rem;
    color: #00d4ff;
}

.pricing-price .amount {
    font-size: 3rem;
    font-weight: bold;
    background: linear-gradient(135deg, #00d4ff, #7b2fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.pricing-price .period {
    color: #a0aab5;
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin-bottom: 2rem;
}

.pricing-features li {
    color: #a0aab5;
    padding: 0.8rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-btn {
    width: 100%;
    background: linear-gradient(135deg, #00d4ff, #7b2fff);
    border: none;
    color: white;
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: bold;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.pricing-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(0, 212, 255, 0.4);
}

/* 应用场景 */
.scenario-item {
    text-align: center;
    padding: 2rem;
    background: rgba(26, 31, 58, 0.8);
    border: 1px solid rgba(123, 47, 255, 0.3);
    border-radius: 15px;
    transition: all 0.3s ease;
}

.scenario-item:hover {
    transform: translateY(-5px);
    border-color: #7b2fff;
    box-shadow: 0 10px 40px rgba(123, 47, 255, 0.3);
}

.scenario-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.scenario-item h3 {
    color: #7b2fff;
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.scenario-item p {
    color: #a0aab5;
    line-height: 1.6;
}

/* 用户评价 */
.testimonial-item {
    background: rgba(26, 31, 58, 0.8);
    border: 1px solid rgba(255, 45, 146, 0.3);
    border-radius: 15px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.testimonial-item:hover {
    transform: translateY(-5px);
    border-color: #ff2d92;
    box-shadow: 0 10px 40px rgba(255, 45, 146, 0.3);
}

.testimonial-content {
    color: #a0aab5;
    font-style: italic;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.testimonial-content::before {
    content: '"';
    font-size: 3rem;
    color: #ff2d92;
    opacity: 0.3;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #ff2d92, #7b2fff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 1.2rem;
}

.author-name {
    color: #fff;
    font-weight: bold;
}

.author-title {
    color: #a0aab5;
    font-size: 0.9rem;
}

/* CTA区域 */
.cta-section {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(123, 47, 255, 0.2));
    padding: 5rem 2rem;
    text-align: center;
    border-top: 1px solid rgba(0, 212, 255, 0.3);
    border-bottom: 1px solid rgba(0, 212, 255, 0.3);
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #00d4ff, #7b2fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta-section p {
    font-size: 1.2rem;
    color: #a0aab5;
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* 特性区域 */
.features-section {
    padding: 5rem 2rem;
    position: relative;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.section-title .gradient-text {
    background: linear-gradient(90deg, #00d4ff, #7b2fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title span:not(.gradient-text) {
    -webkit-text-fill-color: initial;
    background: none;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: rgba(26, 31, 58, 0.8);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 15px;
    padding: 2rem;
    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(-5px);
    border-color: #00d4ff;
    box-shadow: 0 10px 40px rgba(0, 212, 255, 0.3);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.feature-title {
    font-size: 1.3rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
    color: #00d4ff;
}

.feature-desc {
    color: #a0aab5;
    line-height: 1.6;
}

/* SQL测试区域 */
.sql-section {
    padding: 5rem 2rem;
    background: rgba(10, 14, 39, 0.5);
}

.sql-container {
    max-width: 900px;
    margin: 0 auto;
}

.sql-input-wrapper {
    position: relative;
    margin-bottom: 1.5rem;
}

.sql-textarea {
    width: 100%;
    min-height: 200px;
    background: rgba(26, 31, 58, 0.9);
    border: 2px solid rgba(0, 212, 255, 0.3);
    border-radius: 10px;
    padding: 1rem;
    color: #e0e6ed;
    font-family: 'Courier New', monospace;
    font-size: 1rem;
    resize: vertical;
    transition: all 0.3s ease;
}

.sql-textarea:focus {
    outline: none;
    border-color: #00d4ff;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.sql-output {
    background: rgba(10, 14, 39, 0.9);
    border: 2px solid rgba(123, 47, 255, 0.3);
    border-radius: 10px;
    padding: 1.5rem;
    min-height: 150px;
    max-height: 400px;
    overflow-y: auto;
    color: #a0aab5;
    font-family: 'Courier New', monospace;
}

.sql-output pre {
    margin: 0;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.sql-connection-info {
    background: rgba(26, 31, 58, 0.9);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 10px;
    padding: 1rem;
    margin-bottom: 1.5rem;
}

.sql-connection-info h4 {
    color: #00d4ff;
    margin-bottom: 0.5rem;
}

.sql-connection-info p {
    color: #a0aab5;
    margin: 0.3rem 0;
}

/* 页脚 */
.tech-footer {
    background: rgba(10, 14, 39, 0.95);
    border-top: 2px solid #00d4ff;
    padding: 2rem 0;
    text-align: center;
    color: #a0aab5;
}

.tech-footer a {
    color: #00d4ff;
    text-decoration: none;
}

.tech-footer a:hover {
    text-decoration: underline;
}

/* 响应式 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-tagline {
        font-size: 1rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(10, 14, 39, 0.5);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #00d4ff, #7b2fff);
    border-radius: 4px;
}

/* 加载动画 */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #00d4ff;
    animation: spin 1s ease-in-out infinite;
}

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

/* 右侧悬浮客服 */
.service-float {
    position: fixed;
    right: 20px;
    bottom: 100px;
    z-index: 9999;
}

.service-toggle {
    background: linear-gradient(135deg, #00d4ff, #7b2fff);
    border-radius: 50px;
    padding: 15px 25px;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.5);
    transition: all 0.3s ease;
    animation: floatBtn 3s ease-in-out infinite;
}

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

.service-toggle:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 30px rgba(0, 212, 255, 0.6);
}

.service-toggle.active {
    border-radius: 15px 15px 0 0;
    animation: none;
}

.toggle-icon {
    font-size: 24px;
    animation: pulse 2s ease-in-out infinite;
}

.toggle-text {
    color: white;
    font-weight: bold;
    font-size: 14px;
    white-space: nowrap;
}

.service-panel {
    position: absolute;
    right: 0;
    bottom: 100%;
    width: 320px;
    background: rgba(10, 14, 39, 0.98);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 15px;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 10px 40px rgba(0, 212, 255, 0.3);
}

.service-panel.active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
}

.service-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(123, 47, 255, 0.2));
    border-bottom: 1px solid rgba(0, 212, 255, 0.2);
}

.service-title {
    color: #00d4ff;
    font-weight: bold;
    font-size: 16px;
}

.close-btn {
    background: none;
    border: none;
    color: #a0aab5;
    font-size: 28px;
    cursor: pointer;
    transition: all 0.3s ease;
    line-height: 1;
    padding: 0;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    color: #00d4ff;
    transform: rotate(90deg);
}

.service-list {
    padding: 10px;
    max-height: 400px;
    overflow-y: auto;
}

.service-item {
    display: flex;
    gap: 12px;
    padding: 12px;
    background: rgba(26, 31, 58, 0.8);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 10px;
    margin-bottom: 8px;
    transition: all 0.3s ease;
}

.service-item:hover {
    border-color: rgba(0, 212, 255, 0.5);
    transform: translateX(-5px);
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.2);
}

.service-icon {
    font-size: 32px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(123, 47, 255, 0.2));
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

.service-info {
    flex: 1;
    min-width: 0;
}

.service-name {
    color: #fff;
    font-weight: bold;
    font-size: 14px;
    margin-bottom: 8px;
}

.service-number {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 0, 0, 0.3);
    border-radius: 6px;
    padding: 6px 10px;
    margin-bottom: 6px;
}

.service-number span {
    color: #00d4ff;
    font-size: 13px;
    font-weight: 600;
    font-family: 'Courier New', monospace;
    word-break: break-all;
    flex: 1;
}

.service-chat-btn {
    width: 100%;
    background: linear-gradient(135deg, #00d4ff, #7b2fff);
    border: none;
    color: white;
    padding: 8px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 212, 255, 0.3);
}

.service-chat-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.5);
}

.service-copy-btn {
    background: rgba(0, 212, 255, 0.2);
    border: 1px solid rgba(0, 212, 255, 0.4);
    color: #00d4ff;
    width: 28px;
    height: 28px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.service-copy-btn:hover {
    background: rgba(0, 212, 255, 0.4);
    transform: scale(1.1);
}

.service-desc {
    color: #a0aab5;
    font-size: 12px;
    line-height: 1.4;
}

.service-empty {
    text-align: center;
    padding: 40px 20px;
    color: #a0aab5;
    font-size: 14px;
}

/* 响应式 - 客服面板 */
@media (max-width: 768px) {
    .service-float {
        right: 10px;
        bottom: 80px;
    }
    
    .service-panel {
        width: 280px;
        right: -10px;
    }
    
    .service-toggle {
        padding: 12px 20px;
    }
    
    .toggle-text {
        font-size: 12px;
    }
}