@charset "utf-8";

       /* ===== 页面横幅 ===== */
        .page-banner {
            background: linear-gradient(135deg, rgba(10, 47, 108, 0.82) 0%, rgba(26, 75, 140, 0.70) 100%),
                        url('../img1/a8.jpg') center / cover no-repeat;
            padding: 5rem 2rem;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            right: -80px;
            top: -80px;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(106, 176, 254, 0.2) 0%, transparent 70%);
            border-radius: 50%;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            left: -40px;
            bottom: -40px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(143, 203, 255, 0.15) 0%, transparent 70%);
            border-radius: 50%;
        }
        .page-banner .banner-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
            margin: 0 auto;
        }
        .page-banner .banner-icon {
            font-size: 3rem;
            margin-bottom: 1rem;
            color: #b3d9ff;
            background: rgba(255, 255, 255, 0.12);
            width: 80px;
            height: 80px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-left: auto;
            margin-right: auto;
            border: 2px solid rgba(255, 255, 255, 0.25);
            text-shadow: 0 2px 10px rgba(0,0,0,0.4);
            animation: float 3s ease-in-out infinite;
        }
        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }
        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 700;
            letter-spacing: 1px;
            text-shadow: 0 4px 20px rgba(0,0,0,0.5);
            margin-bottom: 0.6rem;
        }
        .page-banner p {
            font-size: 1.15rem;
            font-weight: 300;
            letter-spacing: 0.5px;
            opacity: 0.92;
            text-shadow: 0 2px 12px rgba(0,0,0,0.4);
        }
        @media (max-width: 768px) {
            .page-banner { padding: 3.5rem 1.5rem; }
            .page-banner h1 { font-size: 1.8rem; }
            .page-banner p { font-size: 0.95rem; }
        }

        /* ===== 主内容容器 ===== */
        .tech-content {
            width: 73%;
            margin: 0 auto;
            padding: 2.8rem 0 2.5rem;
        }
        @media (max-width: 900px) {
            .tech-content { width: auto; margin: 0 1rem; padding: 1.5rem 0 2rem; }
        }

        /* ===== 通用区块 ===== */
        .tech-section {
            margin-bottom: 2.5rem;
            background: #fff;
            border-radius: 24px;
            padding: 3.5rem 3rem;
            box-shadow: 0 4px 20px rgba(10, 47, 108, 0.06);
            border: 1px solid #e8f0fe;
        }
        .tech-section.alt-bg {
            background: linear-gradient(145deg, #f5f9fe 0%, #e8f2ff 100%);
            border: 1px solid #dce6f5;
        }
        .tech-section .sec-header {
            margin-bottom: 2.5rem;
        }
        .tech-section .sec-header .sec-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 60px;
            height: 60px;
            border-radius: 16px;
            background: linear-gradient(135deg, rgba(26,107,196,0.1), rgba(106,176,254,0.08));
            color: #1a6bc4;
            font-size: 1.6rem;
            margin-bottom: 0.8rem;
        }
        .tech-section .sec-header h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: #08305c;
            margin-bottom: 0.3rem;
        }
        .tech-section .sec-header .sec-sub {
            font-size: 0.95rem;
            color: #5d7a9e;
            letter-spacing: 0.3px;
        }
        @media (max-width: 768px) {
            .tech-section { padding: 2.2rem 1.5rem; margin-bottom: 1.8rem; }
            .tech-section .sec-header h2 { font-size: 1.4rem; }
        }

        /* ===== 概览统计条 ===== */
        .tech-stats-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            margin-bottom: 2.5rem;
        }
        .tech-stat-item {
            text-align: center;
            padding: 1.8rem 1rem;
            background: #fff;
            border-radius: 16px;
            border: 1px solid #e8f0fe;
            box-shadow: 0 2px 10px rgba(10, 47, 108, 0.04);
            transition: all 0.3s ease;
        }
        .tech-stat-item:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 24px rgba(10, 47, 108, 0.08);
            border-color: #6ab0fe;
        }
        .tech-stat-item .stat-num {
            font-size: 2.4rem;
            font-weight: 700;
            color: #1a6bc4;
            margin-bottom: 0.2rem;
        }
        .tech-stat-item .stat-label {
            font-size: 0.88rem;
            color: #5d7a9e;
            font-weight: 500;
        }
        @media (max-width: 768px) {
            .tech-stats-bar { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
        }
        @media (max-width: 480px) {
            .tech-stats-bar { grid-template-columns: 1fr 1fr; }
            .tech-stat-item { padding: 1.2rem 0.8rem; }
            .tech-stat-item .stat-num { font-size: 1.8rem; }
        }

        /* ===== 研发流程图（水平步骤条） ===== */
        .rd-flow {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 0;
            position: relative;
        }
        .rd-step {
            text-align: center;
            padding: 1.5rem 0.8rem 0;
            position: relative;
        }
        .rd-step::before {
            content: '';
            position: absolute;
            top: 28px;
            left: 50%;
            right: -50%;
            height: 3px;
            background: linear-gradient(90deg, #1a6bc4, #6ab0fe);
            z-index: 0;
        }
        .rd-step:last-child::before { display: none; }
        .rd-step .step-circle {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: #fff;
            border: 3px solid #1a6bc4;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: #1a6bc4;
            margin: 0 auto 0.8rem;
            position: relative;
            z-index: 1;
            transition: all 0.3s;
            box-shadow: 0 0 0 6px rgba(26, 107, 196, 0.06);
        }
        .rd-step:hover .step-circle {
            background: linear-gradient(135deg, #1a6bc4, #0a2f6c);
            color: #fff;
            box-shadow: 0 0 0 10px rgba(26, 107, 196, 0.12);
            transform: scale(1.08);
        }
        .rd-step .step-label {
            font-size: 0.95rem;
            font-weight: 700;
            color: #08305c;
            margin-bottom: 0.25rem;
        }
        .rd-step .step-time {
            font-size: 0.78rem;
            color: #1a6bc4;
            font-weight: 600;
            margin-bottom: 0.4rem;
        }
        .rd-step .step-desc {
            font-size: 0.8rem;
            color: #6e8aa8;
            line-height: 1.55;
        }
        @media (max-width: 900px) {
            .rd-flow { grid-template-columns: 1fr; gap: 1.2rem; }
            .rd-step { display: flex; align-items: flex-start; gap: 1rem; text-align: left; padding: 0 0 0 2rem; border-left: 3px solid #1a6bc4; position: relative; }
            .rd-step::before { display: none; }
            .rd-step .step-circle { width: 44px; height: 44px; font-size: 1.1rem; margin: 0; flex-shrink: 0; position: absolute; left: -24px; top: 0; }
            .rd-step .step-label, .rd-step .step-time, .rd-step .step-desc { margin-left: 0; }
            .rd-step:last-child { border-left: 3px solid transparent; padding-bottom: 0; }
        }

        /* ===== 质量体系 ===== */
        .quality-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
        }
        .quality-sub-block {
            background: #f8fbff;
            border: 1px solid #e8f0fe;
            border-radius: 18px;
            padding: 2rem 1.8rem;
            transition: all 0.3s;
        }
        .quality-sub-block:hover {
            box-shadow: 0 6px 20px rgba(10, 47, 108, 0.08);
            border-color: #6ab0fe;
        }
        .quality-sub-block h4 {
            font-size: 1.1rem;
            font-weight: 700;
            color: #08305c;
            margin-bottom: 0.2rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .quality-sub-block h4 i { color: #1a6bc4; font-size: 1.2rem; }
        .quality-sub-block .q-subtitle {
            font-size: 0.8rem;
            color: #1a6bc4;
            font-weight: 600;
            margin-bottom: 0.8rem;
            letter-spacing: 0.5px;
        }
        .quality-sub-block ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .quality-sub-block ul li {
            position: relative;
            padding: 0.4rem 0 0.4rem 1.5rem;
            font-size: 0.9rem;
            color: #4a6a8a;
            line-height: 1.55;
            border-bottom: 1px dashed #e8f0fe;
        }
        .quality-sub-block ul li:last-child { border-bottom: none; }
        .quality-sub-block ul li::before {
            content: '\f00c';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            left: 0;
            top: 0.45rem;
            font-size: 0.7rem;
            color: #1a6bc4;
        }
        .quality-sub-block.full-width {
            grid-column: 1 / -1;
        }
        @media (max-width: 768px) {
            .quality-layout { grid-template-columns: 1fr; gap: 1rem; }
            .quality-sub-block { padding: 1.5rem 1.2rem; }
        }

        /* ===== 定制化服务 ===== */
        .service-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.2rem;
        }
        .service-step {
            background: #f8fbff;
            border: 1px solid #e8f0fe;
            border-radius: 18px;
            padding: 1.8rem 1.2rem;
            text-align: center;
            transition: all 0.3s ease;
            position: relative;
        }
        .service-step:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 24px rgba(10, 47, 108, 0.1);
            border-color: #6ab0fe;
        }
        .service-step .svc-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, #1a6bc4, #0a2f6c);
            color: #fff;
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.8rem;
            box-shadow: 0 4px 14px rgba(10, 47, 108, 0.25);
            transition: all 0.3s;
        }
        .service-step:hover .svc-num {
            transform: scale(1.1);
        }
        .service-step h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #08305c;
            margin-bottom: 0.4rem;
        }
        .service-step p {
            font-size: 0.82rem;
            color: #5d7a9e;
            line-height: 1.6;
        }
        /* 箭头连接 */
        .service-step::after {
            content: '\f061';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            right: -18px;
            top: 50%;
            transform: translateY(-50%);
            color: #1a6bc4;
            font-size: 0.9rem;
            opacity: 0.5;
            z-index: 1;
        }
        .service-step:last-child::after { display: none; }
        @media (max-width: 900px) {
            .service-flow { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
            .service-step::after { display: none; }
        }
        @media (max-width: 480px) {
            .service-flow { grid-template-columns: 1fr; }
        }

        /* ===== 联合开发详情 ===== */
        .codev-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .codev-card {
            background: #fff;
            border: 1px solid #e8f0fe;
            border-radius: 18px;
            padding: 2rem 1.5rem;
            transition: all 0.3s;
            box-shadow: 0 2px 8px rgba(10, 47, 108, 0.03);
        }
        .codev-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 22px rgba(10, 47, 108, 0.08);
            border-color: #6ab0fe;
        }
        .codev-card .codev-icon {
            width: 50px;
            height: 50px;
            border-radius: 14px;
            background: rgba(26, 107, 196, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: #1a6bc4;
            margin-bottom: 1rem;
            transition: all 0.3s;
        }
        .codev-card:hover .codev-icon {
            background: linear-gradient(135deg, #1a6bc4, #0a2f6c);
            color: #fff;
        }
        .codev-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: #08305c;
            margin-bottom: 0.5rem;
        }
        .codev-card p {
            font-size: 0.88rem;
            color: #5d7a9e;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .codev-grid { grid-template-columns: 1fr; gap: 1rem; }
            .codev-card { padding: 1.5rem 1.2rem; }
        }