:root {
    --primary-blue: rgb(23,101,140);
    --secondary-blue: rgb(255,192,0);
    --light-blue: rgba(23,101,140,0.7);
    --lighter-blue: rgba(23,101,140,0.4);
    --text-dark: rgb(63,63,63);
    --text-gray: #888888;
    --bg-white: #ffffff;
    --bg-light: #f8fafc;
    --bg-card: #ffffff;
    --border-color: #e2e8f0;
    --hero-gradient-start: rgba(7, 28, 48, 0.95);
    --hero-gradient-mid: rgba(23, 101, 140, 0.92);
    --hero-gradient-end: rgba(180, 136, 44, 0.85);
    --hero-overlay-color: rgba(5, 12, 24, 0.35);
}

body {
    background-color: var(--bg-white);
    color: var(--text-dark);
}

/* 导航栏样式 */
.navbar {
    background-color: var(--bg-white) !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid var(--border-color);
}

.navbar-brand {
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--primary-blue) !important;
}

.navbar-brand:hover {
    color: var(--secondary-blue) !important;
}

.navbar-nav .nav-link {
    color: var(--text-dark) !important;
}

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

.navbar-toggler {
    border-color: var(--border-color);
}

.dropdown-menu {
    background-color: var(--bg-white) !important;
    border: 1px solid var(--primary-blue) !important;
    border-radius: 8px !important;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1) !important;
}

.dropdown-item {
    color: var(--text-dark) !important;
}

.dropdown-item:hover,
.dropdown-item.active {
    background-color: var(--primary-blue) !important;
    color: white !important;
}

.page-header {
    position: relative;
    background: linear-gradient(135deg, var(--hero-gradient-start) 0%, var(--hero-gradient-mid) 55%, var(--hero-gradient-end) 100%);
    color: #ffffff;
    padding: 90px 0 80px;
    margin-bottom: 40px;
    overflow: hidden;
}

.page-header::after {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 15% 20%, rgba(255, 255, 255, 0.18), transparent 45%),
        radial-gradient(circle at 85% 10%, rgba(255, 255, 255, 0.08), transparent 35%),
        linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0));
    opacity: 0.9;
    z-index: 1;
}

.page-header::before {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--hero-overlay-color);
    z-index: 1;
}

.page-header .container {
    position: relative;
    z-index: 2;
}

.page-header h1 {
    font-weight: 700;
}

.page-header p {
    max-width: 720px;
    opacity: 0.92;
}

.page-hero {
    background: var(--about-gradient);
    color: #fff;
    padding: 90px 0 80px;
    position: relative;
    overflow: hidden;
  }

  .page-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: url("/images/banner/b2.jpg") center/cover;
    opacity: 0.18;
    mix-blend-mode: screen;
  }

  .page-hero .container {
    position: relative;
    z-index: 2;
  }

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 999px;
    background-color: rgba(255, 255, 255, 0.15);
    font-size: 0.95rem;
}

.hero-cta {
    margin-top: 28px;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.hero-cta .btn,
.hero-cta button {
    border-radius: 10px;
    padding: 12px 28px;
    font-weight: 600;
    border: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.hero-cta .btn-primary,
.hero-cta .btn-light {
    box-shadow: 0 18px 35px rgba(0, 0, 0, 0.2);
}

.hero-cta button.secondary {
    background-color: transparent;
    border: 1px solid rgba(255, 255, 255, 0.4);
    color: #fff;
}

.hero-cta .btn:hover,
.hero-cta button:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.25);
}

.page-content {
.page-header.hero-bg {
    background: linear-gradient(135deg, rgba(3, 7, 18, 0.9) 0%, rgba(15, 23, 42, 0.75) 60%, rgba(23, 101, 140, 0.65) 100%);
}

.page-header .hero-bg::after {
    content: "";
    position: absolute;
    inset: 0;
    background: url("/images/banner/b2.jpg") center/cover;
    opacity: var(--hero-bg-opacity, 0.22);
    mix-blend-mode: screen;
    z-index: 1;
}

.page-header.hero-bg::before {
    background: linear-gradient(135deg, rgba(3, 7, 18, 0.65), rgba(15, 23, 42, 0.55));
}
    padding: 40px 0;
    min-height: 500px;
}

/* Footer 样式 */
footer {
    background-color: #2c3e50;
    color: #ecf0f1;
    margin-top: 60px;
}

.footer-nav {
    padding: 40px 0 30px;
}

.footer-nav h5 {
    color: #fff;
    font-weight: 600;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

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

.footer-nav ul li {
    margin-bottom: 10px;
}

.footer-nav ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.9rem;
}

.footer-nav ul li a:hover {
    color: #fff;
    padding-left: 5px;
}

.footer-copyright {
    background-color: #1a252f;
    padding: 20px 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-copyright p {
    margin: 0;
    color: #95a5a6;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .footer-nav {
        padding: 30px 0 20px;
    }

    .footer-nav h5 {
        margin-top: 30px;
        margin-bottom: 15px;
    }

    .footer-nav h5:first-child {
        margin-top: 0;
    }
}

.btn-primary {
    background-color: var(--primary-blue);
    border-color: var(--primary-blue);
}

.btn-primary:hover {
    background-color: var(--light-blue);
    border-color: var(--light-blue);
}

.btn-outline-primary {
    color: var(--light-blue);
    border-color: var(--light-blue);
}

.btn-outline-primary:hover {
    background-color: var(--light-blue);
    border-color: var(--light-blue);
    color: white;
}

/* 我们如何解决问题模块样式 */
.solve-problem-step-icon {
    width: 100px;
    height: 100px;
    background-color: rgba(23, 101, 140, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    transition: all 0.3s ease;
}

.solve-problem-step-icon:hover {
    background-color: var(--primary-blue);
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(23, 101, 140, 0.3);
}

.solve-problem-step-icon:hover svg {
    fill: white !important;
}

.solve-problem-step-number {
    display: inline-block;
    width: 36px;
    height: 36px;
    background-color: var(--primary-blue);
    color: white;
    border-radius: 50%;
    text-align: center;
    line-height: 36px;
    font-weight: bold;
    font-size: 14px;
    margin-bottom: 10px;
}

.solve-problem-connector {
    height: 3px;
    background-color: var(--primary-blue);
    width: 40px;
    position: relative;
}

.solve-problem-connector::before,
.solve-problem-connector::after {
    content: '';
    position: absolute;
    width: 12px;
    height: 12px;
    background-color: var(--primary-blue);
    border-radius: 50%;
    top: 50%;
    transform: translateY(-50%);
}

.solve-problem-connector::before {
    left: -6px;
}

.solve-problem-connector::after {
    right: -6px;
}

.solve-problem-step h4 {
    color: var(--primary-blue);
    margin-bottom: 8px;
}

.solve-problem-step span {
    color: var(--text-gray);
    font-size: 14px;
    display: block;
    line-height: 1.5;
}

/* 响应式设计 */
@media (max-width: 1199px) {
    .solve-problem-step-icon {
        width: 90px;
        height: 90px;
    }
    
    .solve-problem-step-icon svg {
        width: 50px;
        height: 50px;
    }
    
    .solve-problem-connector {
        width: 30px;
    }
}

@media (max-width: 991px) {
    .solve-problem-step-icon {
        width: 80px;
        height: 80px;
    }
    
    .solve-problem-step-icon svg {
        width: 45px;
        height: 45px;
    }
    
    .solve-problem-connector {
        width: 20px;
    }
}

@media (max-width: 767px) {
    .solve-problem-connector {
        display: none;
    }
    
    .solve-problem-step {
        margin-bottom: 30px;
    }
    
    .solve-problem-step-icon {
        width: 70px;
        height: 70px;
    }
    
    .solve-problem-step-icon svg {
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 575px) {
    .solve-problem-step-icon {
        width: 60px;
        height: 60px;
    }
    
    .solve-problem-step-icon svg {
        width: 35px;
        height: 35px;
    }
    
    .solve-problem-step-number {
        width: 30px;
        height: 30px;
        line-height: 30px;
        font-size: 12px;
    }
    
    .solve-problem-step h4 {
        font-size: 16px;
    }
    
    .solve-problem-step span {
        font-size: 13px;
    }
}

/* 侧边固定按钮容器 */
.side-buttons {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 1000;
}

/* 在线咨询按钮 */
.online-consult {
    width: 50px;
    height: 50px;
    background-color: var(--secondary-blue);
    color: var(--text-dark);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(255, 192, 0, 0.3);
    transition: all 0.3s ease;
    opacity: 1;
    transform: translateY(0);
    line-height: 1;
}

.online-consult:hover {
    background-color: #ffd700;
    box-shadow: 0 6px 16px rgba(255, 192, 0, 0.4);
    transform: translateY(-3px);
}

.online-consult:active {
    transform: translateY(-1px);
}

/* 回到顶部按钮 */
.back-to-top {
    width: 50px;
    height: 50px;
    background-color: var(--primary-blue);
    color: #fff;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 4px 12px rgba(23, 101, 140, 0.3);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(20px);
}

.back-to-top.show {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--light-blue);
    box-shadow: 0 6px 16px rgba(23, 101, 140, 0.4);
    transform: translateY(-3px);
}

.back-to-top:active {
    transform: translateY(-1px);
}

@media (max-width: 768px) {
    .side-buttons {
        bottom: 20px;
        right: 20px;
        gap: 12px;
    }
    
    .online-consult {
        width: 45px;
        height: 45px;
        font-size: 14px;
    }
    
    .back-to-top {
        width: 45px;
        height: 45px;
        font-size: 18px;
    }
}

/* 站点通用统计样式 */
.stat-item {
    text-align: center;
    padding: 20px;
}

.stat-number,
.stat-value {
    font-weight: 800;
    color: var(--stat-accent, var(--primary-blue));
}

.stat-number {
    font-size: 3rem;
    margin-bottom: 10px;
}

.stat-value {
    font-size: 2.5rem;
    margin-bottom: 6px;
}

.stat-label {
    color: var(--stat-label-color, var(--text-gray));
    font-size: var(--stat-label-size, 0.95rem);
}