/* ============================================================
   重庆普作科技有限公司官网样式 —— 深色科技风
   配色取自公司 Logo：
   - 深蓝  #1240B8（P 字竖笔，品牌主色）
   - 科技蓝 #1256E8（渐变过渡色）
   - 青蓝  #2BC8FF（渐变亮色，科技感点缀色）
   整体采用深蓝黑背景 + 青蓝光效，营造大气、稳重的未来科技感
   ============================================================ */
:root {
    --pz-primary: #1240B8;
    --pz-primary-light: #1256E8;
    --pz-accent: #2BC8FF;
    /* 深色科技感背景体系 */
    --pz-bg: #070C18;               /* 全局深蓝黑背景 */
    --pz-bg-card: rgba(21, 32, 56, 0.6);  /* 玻璃拟态卡片底 */
    --pz-bg-light: #0B1426;         /* 区块深色交替背景 */
    --pz-text: #E6ECF5;             /* 主文字：亮白 */
    --pz-text-secondary: #8FA0BC;   /* 次要文字：蓝灰 */
    --pz-border: rgba(43, 200, 255, 0.12); /* 科技感描边 */
    /* 品牌渐变：青蓝 → 科技蓝 → 深蓝 */
    --pz-gradient: linear-gradient(135deg, var(--pz-accent) 0%, var(--pz-primary-light) 55%, var(--pz-primary) 100%);
}

/* ---------------- 基础 ---------------- */
body {
    font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif;
    line-height: 1.7;
    color: var(--pz-text);
    /* 深蓝黑底 + 淡淡的科技网格纹理 + 顶部青蓝光晕 */
    background-color: var(--pz-bg);
    background-image:
        radial-gradient(ellipse 80% 50% at 50% -10%, rgba(18, 86, 232, 0.18), transparent),
        linear-gradient(rgba(43, 200, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(43, 200, 255, 0.03) 1px, transparent 1px);
    background-size: 100% 100%, 44px 44px, 44px 44px;
    background-attachment: fixed;
    /* 粘性页脚布局：内容不足一屏时页脚仍贴底 */
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

#content {
    flex: 1 0 auto;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--pz-text);
    font-weight: 700;
}

/* 覆盖 Bootstrap 辅助色，适配深色背景 */
.text-secondary {
    color: var(--pz-text-secondary) !important;
}

/* ---------------- 顶部导航（深色毛玻璃） ---------------- */
.navbar {
    background: rgba(7, 12, 24, 0.82);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--pz-border);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
}

.navbar-brand img {
    height: 46px;
    width: auto;
    display: block;
}

.navbar-nav .nav-link {
    color: var(--pz-text) !important;
    font-weight: 500;
    font-size: 0.98rem;
    margin: 0 0.25rem;
    padding: 0.45rem 1rem !important;
    border-radius: 999px;
    transition: color 0.25s, background-color 0.25s, box-shadow 0.25s;
}

.navbar-nav .nav-link:hover {
    color: var(--pz-accent) !important;
    background: rgba(43, 200, 255, 0.08);
}

/* 当前页菜单：品牌渐变胶囊 + 发光 */
.navbar-nav .nav-link.active {
    color: #fff !important;
    background: var(--pz-gradient);
    box-shadow: 0 0 16px rgba(43, 200, 255, 0.45);
}

/* 深色背景下的汉堡按钮 */
.navbar-toggler {
    border-color: rgba(255, 255, 255, 0.25);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255,255,255,0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ---------------- 按钮（品牌渐变 + 科技光效） ---------------- */
.btn-primary {
    background: var(--pz-gradient);
    border: none;
    border-radius: 999px;
    padding: 0.55rem 1.6rem;
    font-weight: 500;
    color: #fff;
    box-shadow: 0 6px 18px rgba(18, 86, 232, 0.4), 0 0 22px rgba(43, 200, 255, 0.22);
    transition: transform 0.25s, box-shadow 0.25s, filter 0.25s;
}

.btn-primary:hover, .btn-primary:focus {
    background: var(--pz-gradient);
    color: #fff;
    filter: brightness(1.1);
    transform: translateY(-2px);
    box-shadow: 0 10px 26px rgba(18, 86, 232, 0.5), 0 0 32px rgba(43, 200, 255, 0.35);
}

.btn-outline-primary {
    color: var(--pz-accent);
    border-color: rgba(43, 200, 255, 0.55);
    border-radius: 999px;
    padding: 0.55rem 1.6rem;
    font-weight: 500;
    transition: all 0.25s;
}

.btn-outline-primary:hover {
    background: var(--pz-primary-light);
    border-color: var(--pz-primary-light);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(18, 86, 232, 0.45), 0 0 26px rgba(43, 200, 255, 0.28);
}

/* ---------------- 首页 Hero 首屏 ---------------- */
.hero {
    position: relative;
    overflow: hidden;
    padding: 92px 0 100px;
}

/* Hero 背景装饰：两团品牌色光斑，营造未来科技氛围 */
.hero::before, .hero::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
}

.hero::before {
    width: 520px;
    height: 520px;
    top: -180px;
    right: -120px;
    background: radial-gradient(circle, rgba(43, 200, 255, 0.28), transparent 65%);
}

.hero::after {
    width: 560px;
    height: 560px;
    bottom: -240px;
    left: -150px;
    background: radial-gradient(circle, rgba(18, 86, 232, 0.32), transparent 65%);
}

.hero .container {
    position: relative;
    z-index: 1;
}

/* Logo 带轻微发光，融入深色背景 */
.hero-logo {
    width: 100%;
    max-width: 440px;
    height: auto;
    margin-bottom: 2.2rem;
    filter: drop-shadow(0 0 26px rgba(43, 200, 255, 0.28));
}

.hero-title {
    font-size: 2.7rem;
    letter-spacing: 2px;
    margin-bottom: 1rem;
}

/* 标题中的渐变强调字 */
.hero-title .highlight {
    background: var(--pz-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-subtitle {
    color: var(--pz-text-secondary);
    font-size: 1.15rem;
    max-width: 620px;
    margin: 0 auto 2rem;
}

.hero-actions .btn {
    margin: 0 0.4rem;
}

/* ---------------- 数据概览横带（品牌深蓝渐变 + 顶部亮线） ---------------- */
.stats-band {
    background: linear-gradient(120deg, var(--pz-primary) 0%, var(--pz-primary-light) 60%, #2E9BFF 100%);
    color: #fff;
    padding: 46px 0;
    border-top: 1px solid rgba(43, 200, 255, 0.45);
    border-bottom: 1px solid rgba(43, 200, 255, 0.45);
    box-shadow: 0 0 42px rgba(18, 86, 232, 0.35);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
}

.stat-label {
    color: rgba(255, 255, 255, 0.82);
    font-size: 0.95rem;
    letter-spacing: 1px;
}

/* ---------------- 通用区块 ---------------- */
.section {
    padding: 76px 0;
}

.section-light {
    background: var(--pz-bg-light);
    border-top: 1px solid var(--pz-border);
    border-bottom: 1px solid var(--pz-border);
}

/* 区块小标签（英文眉题） */
.eyebrow {
    color: var(--pz-accent);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 3px;
    margin-bottom: 0.5rem;
}

.section-title {
    font-size: 2rem;
    margin-bottom: 1.2rem;
}

/* 标题下的渐变短装饰条 */
.section-title::after {
    content: "";
    display: block;
    width: 46px;
    height: 4px;
    border-radius: 2px;
    background: var(--pz-gradient);
    margin-top: 0.7rem;
    box-shadow: 0 0 10px rgba(43, 200, 255, 0.5);
}

/* 居中标题时装饰条也居中 */
.text-center .section-title::after {
    margin-left: auto;
    margin-right: auto;
}

/* ---------------- 卡片（深色玻璃拟态） ---------------- */
.card {
    background: var(--pz-bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--pz-border);
    border-radius: 14px;
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.35);
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.card:hover {
    transform: translateY(-6px);
    border-color: rgba(43, 200, 255, 0.35);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45), 0 0 26px rgba(43, 200, 255, 0.15);
}

/* ---------------- 首页简介特点清单 ---------------- */
.feature-item {
    display: flex;
    align-items: flex-start;
    padding: 1.1rem 1.25rem;
    border-radius: 12px;
    background: var(--pz-bg-card);
    border: 1px solid var(--pz-border);
    margin-bottom: 1rem;
    transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
}

.feature-item:hover {
    transform: translateX(6px);
    border-color: rgba(43, 200, 255, 0.35);
    box-shadow: 0 0 22px rgba(43, 200, 255, 0.14);
}

/* 特点序号圆标：品牌渐变底 + 白字 */
.feature-badge {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: var(--pz-gradient);
    color: #fff;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-right: 1rem;
    box-shadow: 0 0 16px rgba(43, 200, 255, 0.4);
}

.feature-item h5 {
    font-size: 1.05rem;
    margin-bottom: 0.2rem;
}

.feature-item p {
    color: var(--pz-text-secondary);
    font-size: 0.92rem;
    margin-bottom: 0;
}

/* ---------------- 项目图标（SVG mask 方案，白色线框图标 + 渐变底） ---------------- */
.project-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: var(--pz-gradient);
    box-shadow: 0 0 20px rgba(43, 200, 255, 0.4);
    position: relative;
    flex-shrink: 0;
}

/* 用 CSS mask 把图标镂空成白色，图标路径由 --icon 变量提供 */
.project-icon::before,
.contact-icon::before {
    content: "";
    position: absolute;
    inset: 0;
    background: #fff;
    -webkit-mask: var(--icon) center / 30px no-repeat;
    mask: var(--icon) center / 30px no-repeat;
}

/* 柱状图（债委会系统） */
.icon-chart {
    --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='4' y1='20' x2='4' y2='10'/%3E%3Cline x1='10' y1='20' x2='10' y2='4'/%3E%3Cline x1='16' y1='20' x2='16' y2='13'/%3E%3Cline x1='2' y1='20' x2='22' y2='20'/%3E%3C/svg%3E");
}

/* 趋势线（大数据分析系统） */
.icon-data {
    --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='23 6 13.5 15.5 8.5 10.5 1 18'/%3E%3Cpolyline points='17 6 23 6 23 12'/%3E%3C/svg%3E");
}

/* 文件夹（项目管理系统） */
.icon-project {
    --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M22 19a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h5l2 3h9a2 2 0 0 1 2 2z'/%3E%3C/svg%3E");
}

/* 人群（数智工会管理系统） */
.icon-users {
    --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M17 21v-2a4 4 0 0 0-4-4H5a4 4 0 0 0-4 4v2'/%3E%3Ccircle cx='9' cy='7' r='4'/%3E%3Cpath d='M23 21v-2a4 4 0 0 0-3-3.87'/%3E%3Cpath d='M16 3.13a4 4 0 0 1 0 7.75'/%3E%3C/svg%3E");
}

/* 水滴（稻田智能灌溉系统） */
.icon-droplet {
    --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 2.69l5.66 5.66a8 8 0 1 1-11.31 0z'/%3E%3C/svg%3E");
}

/* ---------------- 项目列表卡（项目展示页） ---------------- */
.project-card .card-body {
    padding: 1.8rem 2rem;
}

.project-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.project-card p {
    color: var(--pz-text-secondary);
    margin-bottom: 0;
}

/* ---------------- 子页面页头（深色 + 光晕） ---------------- */
.page-header {
    background:
        radial-gradient(ellipse 60% 90% at 50% -20%, rgba(18, 86, 232, 0.28), transparent),
        var(--pz-bg-light);
    border-bottom: 1px solid var(--pz-border);
    padding: 56px 0 48px;
    text-align: center;
}

.page-header h1 {
    font-size: 2.2rem;
    margin-bottom: 0.4rem;
}

.page-header .sub {
    color: var(--pz-text-secondary);
    margin-bottom: 0;
}

/* ---------------- 关于我们页 ---------------- */
.about-card {
    /* 左侧品牌渐变竖条装饰 */
    border-left: 5px solid var(--pz-primary-light);
}

.about-card .card-body {
    padding: 2.2rem 2.4rem;
}

.about-card p {
    color: var(--pz-text-secondary);
}

/* 合作院校卡片：圆形校名首字标 + 校名 */
.school-card {
    text-align: center;
    padding: 2rem 1rem;
}

.school-badge {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--pz-gradient);
    color: #fff;
    font-size: 1.6rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    box-shadow: 0 0 20px rgba(43, 200, 255, 0.4);
}

/* ---------------- 联系我们页 ---------------- */
.contact-item {
    display: flex;
    align-items: center;
    padding: 0.7rem 0;
}

/* 联系方式小图标：深青底 + 青蓝图标 */
.contact-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(43, 200, 255, 0.1);
    border: 1px solid rgba(43, 200, 255, 0.22);
    position: relative;
    flex-shrink: 0;
    margin-right: 1rem;
}

.contact-icon::before {
    background: var(--pz-accent);
    -webkit-mask-size: 20px;
    mask-size: 20px;
}

/* 定位 */
.icon-location {
    --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M21 10c0 7-9 13-9 13S3 17 3 10a9 9 0 0 1 18 0z'/%3E%3Ccircle cx='12' cy='10' r='3'/%3E%3C/svg%3E");
}

/* 联系人 */
.icon-user {
    --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 21v-2a4 4 0 0 0-4-4H8a4 4 0 0 0-4 4v2'/%3E%3Ccircle cx='12' cy='7' r='4'/%3E%3C/svg%3E");
}

/* 电话 */
.icon-phone {
    --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M22 16.92v3a2 2 0 0 1-2.18 2 19.79 19.79 0 0 1-8.63-3.07 19.5 19.5 0 0 1-6-6A19.79 19.79 0 0 1 2.08 4.18 2 2 0 0 1 4.06 2h3a2 2 0 0 1 2 1.72c.13.96.36 1.9.7 2.81a2 2 0 0 1-.45 2.11L8.09 9.91a16 16 0 0 0 6 6l1.27-1.27a2 2 0 0 1 2.11-.45c.91.34 1.85.57 2.81.7A2 2 0 0 1 22 16.92z'/%3E%3C/svg%3E");
}

/* 邮箱 */
.icon-envelope {
    --icon: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M4 4h16a2 2 0 0 1 2 2v12a2 2 0 0 1-2 2H4a2 2 0 0 1-2-2V6a2 2 0 0 1 2-2z'/%3E%3Cpolyline points='22,6 12,13 2,6'/%3E%3C/svg%3E");
}

/* 表单控件：深色底 + 聚焦时青蓝发光描边 */
.form-control {
    border-radius: 10px;
    background: rgba(7, 12, 24, 0.6);
    border: 1px solid rgba(143, 160, 188, 0.3);
    color: var(--pz-text);
    padding: 0.55rem 0.9rem;
}

.form-control::placeholder {
    color: rgba(143, 160, 188, 0.6);
}

.form-control:focus {
    background: rgba(7, 12, 24, 0.8);
    color: var(--pz-text);
    border-color: var(--pz-accent);
    box-shadow: 0 0 0 0.2rem rgba(43, 200, 255, 0.14), 0 0 16px rgba(43, 200, 255, 0.18);
}

/* ---------------- CTA 行动号召横带 ---------------- */
.cta-band {
    background: linear-gradient(120deg, var(--pz-primary) 0%, var(--pz-primary-light) 60%, #2E9BFF 100%);
    color: #fff;
    padding: 72px 0;
    border-top: 1px solid rgba(43, 200, 255, 0.45);
    box-shadow: 0 0 42px rgba(18, 86, 232, 0.3);
}

.cta-band h2 {
    color: #fff;
    font-size: 2rem;
    margin-bottom: 0.6rem;
}

.cta-band p {
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 1.6rem;
}

.cta-band .btn-light {
    border-radius: 999px;
    padding: 0.6rem 2rem;
    font-weight: 600;
    color: var(--pz-primary);
    border: none;
}

/* ---------------- 深色页脚 ---------------- */
.footer {
    background: #04070E;
    border-top: 1px solid var(--pz-border);
    color: #8FA0BC;
    padding: 56px 0 0;
    flex-shrink: 0;
}

.footer h6 {
    color: var(--pz-text);
    font-size: 1rem;
    margin-bottom: 1rem;
}

.footer-logo {
    height: 40px;
    width: auto;
    margin-bottom: 1rem;
}

.footer a {
    color: #8FA0BC;
    text-decoration: none;
    transition: color 0.2s;
}

.footer a:hover {
    color: var(--pz-accent);
}

.footer ul {
    list-style: none;
    padding-left: 0;
}

.footer ul li {
    margin-bottom: 0.5rem;
}

/* 页脚底部版权条 */
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    margin-top: 2.4rem;
    padding: 1.1rem 0;
    font-size: 0.88rem;
    color: #5E6B84;
}

/* 备案号链接：与版权信息间隔排列，hover 时亮起 */
.footer-bottom .beian-link {
    color: #5E6B84;
    margin-left: 1rem;
    text-decoration: none;
}

.footer-bottom .beian-link:hover {
    color: var(--pz-accent);
}

/* ---------------- 响应式微调 ---------------- */
@media (max-width: 768px) {
    .navbar-nav {
        margin-top: 10px;
    }

    .navbar-nav .nav-item {
        margin-bottom: 5px;
    }

    .hero {
        padding: 56px 0 64px;
    }

    .hero-title {
        font-size: 1.9rem;
    }

    .section {
        padding: 52px 0;
    }

    .stat-number {
        font-size: 1.9rem;
    }
}