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

body {
    font-family: 'Inter', sans-serif;
    color: #1e293b;
    background-color: #f9fafb;
    line-height: 1.5;
    scroll-behavior: smooth;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ========== 高级按钮：柔和光泽 + 玻璃 ========== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    padding: 12px 32px;
    border-radius: 60px;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.2, 0.9, 0.4, 1.1);
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
    background: linear-gradient(105deg, #0035fe 0%, #0653ef 50%, #3a6ea5 100%);
    color: white;
    box-shadow: 0 6px 14px rgba(27, 55, 96, 0.2);
    position: relative;
    overflow: hidden;
    z-index: 1;
    backdrop-filter: blur(2px);
}
.btn::before {
    content: '';
    position: absolute;
    top: -40%;
    left: -30%;
    width: 120%;
    height: 150%;
    background: linear-gradient(115deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.3) 40%, rgba(255,255,255,0) 80%);
    transform: rotate(20deg);
    transition: left 0.6s ease;
    z-index: -1;
}
.btn:hover::before {
    left: 100%;
}
.btn-outline {
    background: linear-gradient(135deg, rgba(16,185,129,0.75), rgba(52,211,153,0.75));
    color: #fff;
    border: 1.5px solid #3aa567;
    box-shadow: none;
}
.btn-outline::before {
    background: linear-gradient(115deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.5) 40%, rgba(255,255,255,0) 80%);
}
 
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 20px -8px #1e2b5c;
}

/* 返回顶部按钮 - 柔和玻璃 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: rgba(43, 59, 143, 0.7);
    backdrop-filter: blur(8px);
    border-radius: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
    z-index: 99;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    border: 1px solid rgba(255,255,255,0.3);
}
.back-to-top.show {
    opacity: 1;
    visibility: visible;
}
.back-to-top:hover {
    transform: translateY(-4px);
    background: rgba(43, 59, 143, 0.9);
}

/* 导航栏 */
.navbar {
    position: sticky;
    top: 0;
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(16px);
    z-index: 100;
    border-bottom: 1px solid rgba(43,59,143,0.1);
    padding: 16px 0;
}
.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}
.logo-img {
    height: 48px;
    width: auto;
}
.nav-links {
    display: flex;
    gap: 40px;
    align-items: center;
}
.nav-links a {
    text-decoration: none;
    color: #1e293b;
    font-weight: 500;
    transition: 0.2s;
    position: relative;
}
.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #2b3b8f, #5b8cce);
    transition: width 0.3s;
}
.nav-links a:hover::after {
    width: 100%;
}
.mobile-menu-btn {
    display: none;
    font-size: 1.6rem;
    background: none;
    border: none;
    cursor: pointer;
}

/* Hero 轮播 - 增高，动画 */
.hero-swiper {
    width: 100%;
    height: 880px;
}
.hero-slide {
    position: relative;
    display: flex;
    align-items: center;
}
.slide-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    z-index: 0;
    animation: scaleSlow 16s infinite alternate ease-in-out;
}
@keyframes scaleSlow {
    0% { transform: scale(1); }
    100% { transform: scale(1.06); }
}
.hero-slide::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(0,0,0,0.55) 0%, rgba(0,0,0,0.3) 100%);
    z-index: 1;
}
.hero-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
    color: white;
}
.hero-badge {
    background: rgba(43, 59, 143, 0.65);
    backdrop-filter: blur(8px);
    display: inline-block;
    padding: 6px 20px;
    border-radius: 40px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
    border: 1px solid rgba(255,255,255,0.25);
}
.hero-content h1 {
    font-size: 3.8rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}
.hero-highlight {
    background: linear-gradient(120deg, #a5f3fc, #7dd3fc);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    border-bottom: 2px solid #38bdf8;
}
.hero-sub {
    font-size: 1.2rem;
    margin-bottom: 30px;
    opacity: 0.95;
    border-left: 3px solid #38bdf8;
    padding-left: 18px;
}
/* 多色渐变统计卡片 - 柔和玻璃 */
.hero-stats {
    display: flex;
    gap: 28px;
    margin-top: 28px;
    flex-wrap: wrap;
}
.stat-card {
    font-weight: 600;
    padding: 12px 28px;
    border-radius: 60px;
    backdrop-filter: blur(12px);
    background: rgba(0,0,0,0.25);
    transition: transform 0.25s, background 0.2s;
    border: 1px solid rgba(255,255,255,0.2);
}
 
.stat-cyan {
    background: linear-gradient(135deg, rgba(6,182,212,0.75), rgba(59,130,246,0.75));
    box-shadow: 0 4px 12px rgba(6,182,212,0.2);
}
.stat-green {
    background: linear-gradient(135deg, rgba(16,185,129,0.75), rgba(52,211,153,0.75));
}
.stat-orange {
    background: linear-gradient(135deg, rgba(245,158,11,0.75), rgba(249,115,22,0.75));
}
.swiper-pagination-bullet-active {
    background: #38bdf8 !important;
}

/* 入场动画 */
.animate-fadein { animation: fadeIn 0.8s ease forwards; }
.animate-slideup { animation: slideUp 0.7s ease forwards; opacity: 0; }
.delay-1 { animation-delay: 0.15s; }
.delay-2 { animation-delay: 0.3s; }
.delay-3 { animation-delay: 0.45s; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(35px); } to { opacity: 1; transform: translateY(0); } }

/* 通用模块 - 柔和渐变背景 */
.section {
    padding: 120px 0;
}
.section:nth-child(odd) {
    background: linear-gradient(135deg, #ffffff 0%, #f3f6fc 100%);
}
.section:nth-child(even) {
    background: linear-gradient(135deg, #ffffff 0%, #f0f4fa 100%);
}
.section-title {
    font-size: 2.6rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #14253d, #2b3b8f, #1e8fcf);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.section-sub {
    text-align: center;
    color: #4a5b6e;
    max-width: 760px;
    margin: 0 auto 56px;
    font-size: 1.2rem;
    line-height: 1.6;
}

/* 核心优势卡片 - 多色图标，居中 */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
}
.card {
    background: rgba(255,255,255,0.8);
    backdrop-filter: blur(8px);
    border-radius: 48px;
    padding: 44px 28px;
    text-align: center;
    transition: all 0.4s;
    box-shadow: 0 20px 30px -12px rgba(0,0,0,0.04);
    border: 1px solid rgba(43,59,143,0.1);
}
.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 45px -12px rgba(43,59,143,0.2);
    border-color: rgba(43,59,143,0.25);
    background: rgba(255,255,255,0.95);
}
.card-icon {
    width: 88px;
    height: 88px;
    margin: 0 auto 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 32px;
    font-size: 2.5rem;
    color: white;
    transition: transform 0.3s;
}
.card:hover .card-icon {
    transform: scale(1.05);
}
.gradient-icon-1 { background: linear-gradient(145deg, #2563eb, #06b6d4); }
.gradient-icon-2 { background: linear-gradient(145deg, #8b5cf6, #d946ef); }
.gradient-icon-3 { background: linear-gradient(145deg, #ec489a, #f97316); }
.gradient-icon-4 { background: linear-gradient(145deg, #10b981, #34d399); }
.gradient-icon-5 { background: linear-gradient(145deg, #f59e0b, #fbbf24); }
.gradient-icon-6 { background: linear-gradient(145deg, #ef4444, #f87171); }
.card h3 {
    font-size: 1.5rem;
    margin-bottom: 16px;
    font-weight: 700;
}
.card p {
    color: #4a5b6e;
    line-height: 1.6;
}

/* 产品展示 */
.two-columns {
    display: flex;
    gap: 64px;
    flex-wrap: wrap;
    align-items: center;
}
.col-text {
    flex: 1;
}
.col-media {
    flex: 1;
}
.feature-list {
    list-style: none;
    margin: 32px 0;
}
.feature-list li {
    margin-bottom: 22px;
    display: flex;
    gap: 16px;
    align-items: baseline;
}
.feature-list i {
    color: #2b3b8f;
    font-size: 1.25rem;
    background: rgba(43,59,143,0.1);
    padding: 6px;
    border-radius: 50%;
}
.image-card-3-4 {
    width: 100%;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    border-radius: 40px;
    background: #e2e8f0;
    box-shadow: 0 20px 30px -10px rgba(0,0,0,0.1);
}
.image-card-3-4 img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s;
}
.image-card-3-4:hover img {
    transform: scale(1.05);
}

/* 功能演示 */
.demo-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}
.demo-card {
    background: #ffffff;
    border-radius: 36px;
    overflow: hidden;
    transition: all 0.35s;
    border: 1px solid #eef2ff;
    box-shadow: 0 10px 20px -8px rgba(0,0,0,0.04);
}
.demo-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 25px 35px -12px rgba(43,59,143,0.15);
    border-color: #cbdffc;
}
.img-3-4 {
    width: 100%;
    aspect-ratio: 4 / 3;
    overflow: hidden;
}
.img-3-4 img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}
.demo-card:hover .img-3-4 img {
    transform: scale(1.04);
}
.demo-card h4 {
    font-size: 1.3rem;
    margin: 22px 22px 10px;
    font-weight: 700;
}
.demo-card p {
    margin: 0 22px 28px;
    color: #5b677b;
}
.btn-group {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 64px;
    flex-wrap: wrap;
}
/* 技术参数 + 客户案例 - 重设计：多色渐变背景图标 + 加大间距 + 玻璃质感 */
.params-section {
    background: linear-gradient(-135deg, #fff 0%, #f0f4fa 100%);
    backdrop-filter: blur(16px);
    border-radius: 72px;
    padding: 80px 56px;
    box-shadow: 0 25px 40px -12px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.8);
}

.params-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 48px;
    margin-bottom: 80px;
}

.glass-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(8px);
    border-radius: 48px;
    padding: 36px 24px;
    text-align: center;
    transition: all 0.35s cubic-bezier(0.2, 0.9, 0.4, 1.1);
    border: 1px solid rgba(1, 1, 1, 0.1);
    box-shadow: 0 10px 20px -5px rgba(0, 0, 0, 0.05);
}
.glass-card:hover {
    background: rgba(255, 255, 255, 0.95);
    transform: translateY(-8px);
    box-shadow: 0 25px 35px -12px rgba(2, 132, 199, 0.25);
    border-color: rgba(2, 132, 199, 0.4);
}

/* 图标容器：多色渐变背景 + 圆角 + 动态悬浮 */
.param-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    font-size: 2.5rem;
    border-radius: 32px;
    color: white;
    transition: transform 0.25s, box-shadow 0.25s;
}
.glass-card:hover .param-icon {
    transform: scale(1.05);
    box-shadow: 0 12px 20px -8px rgba(0, 0, 0, 0.2);
}

/* 不同卡片的多色渐变背景 */
.param-icon-blue { background: linear-gradient(145deg, #2563eb, #06b6d4); }
.param-icon-green { background: linear-gradient(145deg, #10b981, #34d399); }
.param-icon-cyan { background: linear-gradient(145deg, #06b6d4, #67e8f9); }
.param-icon-purple { background: linear-gradient(145deg, #8b5cf6, #c084fc); }
.param-icon-orange { background: linear-gradient(145deg, #f97316, #fbbf24); }
.param-icon-indigo { background: linear-gradient(145deg, #4f46e5, #818cf8); }

.param-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: #0f172a;
    letter-spacing: -0.01em;
}
.param-value {
    font-size: 1rem;
    color: #4b5563;
    font-weight: 500;
}

/* 客户案例区域 - 加大间距，玻璃圆角，图标渐变 */
.case-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 36px;
    margin-top: 32px;
}
.case-item {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    padding: 14px 36px;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.2, 0.9, 0.4, 1.1);
    cursor: default;
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(4px);
    border-radius: 80px;
    border: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
}
.case-item i {
    font-size: 1.4rem;
    background: linear-gradient(135deg, #0284c7, #38bdf8);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    transition: transform 0.2s;
}
.case-item span {
    color: #1e293b;
}
.case-item:hover {
    transform: translateY(-6px);
    background: white;
    border-color: #38bdf8;
    box-shadow: 0 15px 25px -10px rgba(2, 132, 199, 0.2);
}
.case-item:hover i {
    transform: scale(1.1);
}
/* 产品手册 - 重新设计：深邃科技蓝玻璃质感 + 动态光晕 + 光泽扫过 */
.handbook {
    position: relative;
    background: linear-gradient(135deg, rgba(2, 132, 199, 0.88), rgba(0, 84, 147, 0.96));
    backdrop-filter: blur(16px);
    border-radius: 64px;
    padding: 80px 48px;
    text-align: center;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 25px 45px -12px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.handbook-grid{
    display: grid;
    grid-template-columns:repeat(2, 1fr);
    gap: 30px;
}
.handbook:hover {
    transform: translateY(-6px);
    box-shadow: 0 35px 50px -15px rgba(0, 0, 0, 0.4);
}

/* 动态呼吸光晕 */
.handbook::before {
    content: '';
    position: absolute;
    inset: -20%;
    background: radial-gradient(circle at 30% 40%, rgba(56, 189, 248, 0.45), rgba(0, 0, 0, 0) 70%);
    animation: pulseRotate 12s infinite alternate ease-in-out;
    pointer-events: none;
}
@keyframes pulseRotate {
    0% {
        opacity: 0.4;
        transform: scale(1) rotate(0deg);
    }
    100% {
        opacity: 0.8;
        transform: scale(1.2) rotate(5deg);
    }
}

/* 光泽扫过动画 */
.handbook::after {
    content: '';
    position: absolute;
    top: 0;
    left: -50%;
    width: 200%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
    transform: skewX(-20deg);
    animation: shimmer 8s infinite;
    pointer-events: none;
}
@keyframes shimmer {
    0% { transform: translateX(-100%) skewX(-20deg); }
    100% { transform: translateX(100%) skewX(-20deg); }
}

/* 标题文字：白色到淡蓝渐变 */
.handbook h3 {
    position: relative;
    z-index: 2;
    font-size: 2.4rem;
    font-weight: 800;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #ffffff, #e0f2fe);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    letter-spacing: -0.01em;
}

/* 副文本：亮白高亮 */
.handbook p {
    position: relative;
    z-index: 2;
    font-size: 1.2rem;
    margin-bottom: 40px;
    color: rgba(255, 255, 255, 0.92);
    font-weight: 500;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* 按钮反白设计，更加醒目 */
.handbook .btn {
    position: relative;
    z-index: 2;
    background: white;
    color: #0284c7;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    border: none;
    transition: all 0.3s;
}
.handbook .btn:hover {
    background: linear-gradient(105deg, #f0f9ff, #ffffff);
    transform: translateY(-3px);
    box-shadow: 0 15px 25px -8px rgba(0, 0, 0, 0.3);
    color: #0369a1;
}

/* 页脚 */
.footer {
    background: #0b1120;
    color: #9ca3af;
    padding: 56px 0 32px;
}
.footer-info {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 32px;
}

/* 响应式 */
@media (max-width: 1024px) {
    .cards-grid, .demo-grid, .params-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .mobile-menu-btn {
        display: block;
    }
    .cards-grid, .demo-grid, .params-grid {
        grid-template-columns: 1fr;
    }
    .hero-content h1 {
        font-size: 2.2rem;
    }
    .hero-swiper {
        height: 720px;
    }
    .section-title {
        font-size: 2rem;
    }
    .params-section {
        padding: 40px 20px;
    }
    .handbook {
        padding: 50px 24px;
    }
    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }
    .two-columns{
        display: block;
    }
    .col-text{
        margin-bottom: 20px;
    }
}