/* 全局变量与重置 */
:root {
    /* 主色调：Word 深海蓝渐变 */
    --brand-dark: #1a2980;
    --brand-light: #26d0ce;
    --brand-gradient: linear-gradient(135deg, #1a2980 0%, #26d0ce 100%);

    /* 辅助色 */
    --text-dark: #1e293b;
    --text-gray: #64748b;
    --bg-base: #f8fafc;

    /* 阴影 */
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft YaHei", "Segoe UI", sans-serif;
}

body {
    background-color: var(--bg-base);
    color: var(--text-dark);
    overflow-x: hidden;
    /* 蓝色光晕背景 */
    background-image: radial-gradient(circle at 10% 20%, rgba(38, 208, 206, 0.08) 0%, transparent 20%),
    radial-gradient(circle at 90% 80%, rgba(26, 41, 128, 0.08) 0%, transparent 20%);
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s;
}

/* SVG 图标通用样式 */
svg {
    fill: currentColor;
    vertical-align: middle;
    display: inline-block;
}

/* 1. 顶部导航 */
.header {
    background: rgba(255, 255, 255, 0.95);
    height: 70px;
    display: flex;
    justify-content: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 1px 15px rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(10px);
}

.header-container {
    width: 1200px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.header-container a{
    background:#ffffff;
    color:#0d1a37;
    box-shadow:none;
}

.logo {
    color: #1a2980;
    font-size: 24px;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    letter-spacing: -0.5px;
}

/* 顶部 Logo 图标大小调整 */
.logo svg {
    width: 32px;
    height: 32px;
}

.logo:hover {
    opacity: 0.8;
    transform: scale(1.02);
}

.header-btn {
    background: var(--brand-gradient);
    color: #fff;
    padding: 10px 25px;
    border-radius: 50px;
    font-size: 16px;
    margin-left: 10px;
    font-weight:normal ;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 15px rgba(38, 208, 206, 0.3);
}

.header-btn svg {
    width: 16px;
    height: 16px;
}

.header-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(38, 208, 206, 0.5);
}

/* 2. Hero 区域 (本地图片) */
.hero {
    background: linear-gradient(120deg, rgba(26, 41, 128, 0.9) 0%, rgba(79, 216, 214, 0.85) 100%), /*渐变色*/ url('../img/bg.jpg');
    background-size: cover;/*会让背景图‌等比缩放并铺满整个容器*/
    background-position: center;/*用于将背景图片在容器中‌居中显示*/
    height: 700px; /*稍微增高一点*/
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    /*clip-path: polygon(0 0, 100% 0, 100% 90%, 0% 100%);*/
}

.hero::before {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    top: -100px;
    right: -50px;
    filter: blur(60px);
    animation: float 6s infinite ease-in-out;
}

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

.hero-container {
    width: 1200px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 2;
}

.hero-text h1 {
    font-size: 56px;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.1;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.hero-text h2 {
    font-size: 22px;
    font-weight: 500;
    opacity: 0.95;
    margin-bottom: 40px;
}

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

.hero-tags span {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(5px);
    margin-right: 30px;
    padding: 8px 26px;
    border-radius: 8px;
    font-size: 14px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    display: flex;
    align-items: center;
    gap: 8px;
}

.hero-tags span svg {
    color: #80ffe8;
    width: 16px;
    height: 16px;
}

.btn-hero {
    display: inline-block;
    margin-top: 150px;
    margin-left: 200px;
    padding: 20px 50px;
    font-size: 18px;
    font-weight: bold;
    color: #062903;
    background: #74df58;
    border-radius: 50px;
    transition: 0.3s;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.btn-hero:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

/* 3D 盒子 - 尺寸加大 */
.hero-box-3d {
    width: 340px;
    height: 340px; /* 加大盒子 */
    background: rgb(132, 140, 153);
    backdrop-filter: blur(20px);
    transform: perspective(1000px) rotateY(-20deg) rotateX(10deg);
    border-radius: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 20px 20px 50px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(218, 202, 202, 0.5);
}

/* 3. 产品列表 */
.products-section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
    position: relative;
}

.section-header h2 {
    font-size: 36px;
    color: #1e293b;
    font-weight: 800;
    z-index: 2;
    position: relative;
}

.section-header::after {
    content: 'WORD';
    position: absolute;
    top: -40px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 100px;
    color: rgba(26, 41, 128, 0.03);
    font-weight: 900;
    pointer-events: none;
    z-index: 1;
}

.product-grid {
    width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.card {
    background: #fff;
    border-radius: 16px;
    padding: 25px;
    box-shadow: var(--shadow-sm);
    transition: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: var(--brand-gradient);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.card-head {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.icon-box {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 100%);
    color: #0284c7;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 900;
}

.card:hover .icon-box {
    background: var(--brand-gradient);
    color: #fff;
    transform: rotate(10deg);
    transition: 0.3s;
}

.card-title {
    font-weight: 800;
    font-size: 18px;
    color: #334155;
}

.card-desc {
    font-size: 13px;
    color: #64748b;
    line-height: 1.6;
    height: 42px;
    overflow: hidden;
    margin-bottom: 20px;
}

.sys-info {
    margin-bottom: 20px;
    font-size: 12px;
    color: #475569;
    font-weight: 600;
    background: #f1f5f9;
    padding: 8px 12px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.sys-info svg {
    color: #2563eb;
    width: 14px;
    height: 14px;
}

.btn-download {
    display: block;
    width: 100%;
    padding: 12px 0;
    border-radius: 8px;
    background: linear-gradient(90deg, #2b579a, #3b82f6);
    color: #fff;
    font-weight: bold;
    text-align: center;
    font-size: 14px;
    transition: 0.3s;
    position: relative;
    overflow: hidden;
}

.btn-download::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: 0.5s;
}

.btn-download:hover {
    background: linear-gradient(90deg, #1e3a8a, #2563eb);
    box-shadow: 0 5px 15px rgba(37, 99, 235, 0.4);
}

.btn-download:hover::after {
    left: 100%;
}

/* 4. 文档与协作 (本地图片) */
.info-section {
    padding: 100px 0;
    margin-top: 60px;
    position: relative;
    background: #fff;
}

.info-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, #f8fafc 0%, #fff 100%);
    z-index: 1;
    transform: skewY(-3deg);
    transform-origin: top left;
}

.info-header {
    text-align: center;
    margin-bottom: 50px;
    position: relative;
    z-index: 2;
}

.info-header h2 {
    font-size: 32px;
    color: #1a2980;
    font-weight: 800;
}

.info-header h2 span {
    color: #26d0ce;
    background: -webkit-linear-gradient(0deg, #1a2980, #26d0ce);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.info-box {
    position: relative;
    z-index: 2;
    width: 1200px;
    margin: 0 auto;
    display: flex;
    border-radius: 24px;
    overflow: hidden;
    /*box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);*/
    background: #fff;
}

.info-content {
    width: 45%;
    padding: 70px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: #fff;
}

.info-content h3 {
    font-size: 28px;
    margin-bottom: 25px;
    color: #1e293b;
    line-height: 1.3;
    font-weight: 700;
}

.info-content p {
    font-size: 16px;
    color: #64748b;
    line-height: 1.8;
    margin-bottom: 40px;
}

.info-img {
    width: 55%;
    /* 引用本地图片 */
    background: url('../hengdaotu3.jpg') center/cover;
    position: relative;
}

.info-img2 {
    width: 55%;
    /* 引用本地图片 */
    background: url('../hengdaotu2.jpg') center/cover;
    position: relative;
}

.info-img3 {
    width: 55%;
    /* 引用本地图片 */
    background: url('../hengdaotu.jpg') center/cover;
    position: relative;
}

.info-img4 {
    width: 55%;
    /* 引用本地图片 */
    background: url('../hengdaotu3.jpg') center/cover;
    position: relative;
}

.info-img::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(26, 41, 128, 0.4), transparent);
}

/* 5. 常见问题 (本地纹理) */
.faq-section {
    background: #0f172a;
    padding: 100px 0;
    color: #fff;
    /* 引用本地纹理 */
    background-image: url('../img/bg.jpg');
    position: relative;
}

.faq-wrap {
    width: 1000px;
    margin: 0 auto;
    display: flex;
    border-radius: 16px;
    overflow: hidden;
    background: rgba(30, 41, 59, 0.8);
    backdrop-filter: blur(10px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.faq-nav {
    width: 300px;
    background: rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
}

.nav-item {
    padding: 25px 30px;
    cursor: pointer;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 15px;
    color: #94a3b8;
    transition: 0.3s;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-item:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.05);
}

.nav-item.active {
    background: #1e293b;
    color: #38bdf8;
    font-weight: bold;
    border-left: 4px solid #38bdf8;
    box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.2);
}

.nav-item svg {
    width: 10px;
    height: 16px;
}

/* 箭头大小 */

.faq-content-area {
    flex: 1;
    padding: 50px;
    background: #1e293b;
    color: #e2e8f0;
    min-height: 350px;
}

.tab-content {
    display: none;
    animation: slideUp 0.4s ease-out;
}

.tab-content.active {
    display: block;
}

.tab-content h3 {
    color: #38bdf8;
    margin-bottom: 20px;
    font-size: 24px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.tab-content h3 svg {
    width: 24px;
    height: 24px;
}

.tab-content p {
    font-size: 15px;
    line-height: 1.8;
    color: #cbd5e1;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 页脚 */
footer {
    background: #d9dbe6;
    color: #0e213d;
    text-align: center;
    padding: 60px 0;
    font-size: 13px;
}

footer strong {
    color: #0e371f;
    font-size: 14px;
    display: block;
    margin-bottom: 10px;
    font-weight:normal ;
}

/* 响应式 */
@media (max-width: 1200px) {
    .header-container, .hero-container, .product-grid, .info-box {
        width: 100%;
        padding: 0 20px;
    }

    .product-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .hero {
        height: auto;
        padding: 100px 0;
        text-align: center;
        clip-path: none;
    }

    .hero-container {
        flex-direction: column;
    }

    .hero-box-3d {
        margin-top: 50px;
    }

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

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

    .info-box {
        flex-direction: column;
    }

    .info-content, .info-img {
        width: 100%;
        height: 350px;
    }

    .faq-wrap {
        flex-direction: column;
        width: 95%;
    }

    .faq-nav {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .product-grid {
        grid-template-columns: 1fr;
    }
}

/* 留言板 */
#feedform p{
    height: 60px;
}
#title{
    font-size: 15px;
    color: #fbfbfd;
    width: 520px;
    height: 35px;
    border:0;
    border-radius:3px;
    padding:8px;
    background-color:#1a2980;

}
#regcheckCode5{
    font-size: 15px;
    color: #fbfbfd;
    width: 200px;
    height: 35px;
    border:0;
    border-radius:6px;
    padding:8px;
    background-color:#1a2980;
}
#mytext{
    font-size: 15px;
    color: #fbfbfd;
    width: 800px;
    height: 300px;
    border:0;
    border-radius:6px;
    padding:8px;
    background-color:#1a2980;
}
#feedsubmit{
    font-size: 15px;
    color: #221406;
    margin:50px 400px ;
    padding: 8px 60px;
    border:0;
    border-radius:12px;
    background-color: #cce482;
    cursor: pointer;
}