@charset "utf-8";

/* =====================================================
   蓝太平洋 · AI政务服务解决方案页 样式
   依赖 css/webengine.css 提供的基础设计体系
   （top-bar / main-header / hero / section / cta / footer）
   本文件仅包含本页专属组件
   ===================================================== */

/* ---------- 方案背景：图文两栏 ---------- */
.overview-flex {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 40px;
    align-items: center;
}

.overview-flex .overview-text p {
    margin: 0 0 16px;
    font-size: 15.5px;
    color: var(--text-muted);
    line-height: 1.9;
    text-align: justify;
}

.overview-flex .overview-text p:last-child {
    margin-bottom: 0;
}

.overview-pic {
    margin: 0;
}

.overview-pic img {
    width: 100%;
    display: block;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

/* ---------- AI政务服务目标三卡 ---------- */
.goal-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.goal-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border-top: 3px solid var(--accent);
    padding: 28px 26px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.goal-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(41, 62, 132, 0.14);
}

.goal-card h3 {
    font-size: 18px;
    color: var(--brand);
    margin: 0 0 12px;
}

.goal-card p {
    margin: 0;
    font-size: 14.5px;
    color: var(--text-muted);
    line-height: 1.8;
    text-align: justify;
}

/* ---------- 三大产品平台索引卡 ---------- */
.platform-nav {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.platform-nav .pn-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
    display: block;
    text-decoration: none;
}

.platform-nav .pn-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(41, 62, 132, 0.14);
}

.platform-nav .pn-card img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    display: block;
}

.platform-nav .pn-body {
    padding: 20px 22px;
}

.platform-nav h3 {
    font-size: 17px;
    color: var(--brand);
    margin: 0 0 10px;
}

.platform-nav p {
    margin: 0;
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    text-align: justify;
}

/* ---------- 平台详情模块 ---------- */
.module-block {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 32px 34px;
    margin-bottom: 32px;
}

.module-head {
    display: flex;
    align-items: baseline;
    gap: 14px;
    margin-bottom: 14px;
}

.module-head .num {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    line-height: 36px;
    text-align: center;
    border-radius: 50%;
    background: var(--brand);
    color: #fff;
    font-size: 17px;
    font-weight: 700;
    align-self: center;
}

.module-head h3 {
    font-size: 21px;
    color: var(--brand);
    margin: 0;
}

.module-head .en {
    font-size: 13px;
    color: #9aa3b8;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.module-desc {
    color: var(--text-muted);
    line-height: 1.85;
    text-align: justify;
    margin: 0 0 20px;
}

.module-desc strong {
    color: var(--brand);
}

.step-list {
    list-style: none;
    margin: 0 0 18px;
    padding: 0;
}

.step-list li {
    position: relative;
    padding: 14px 18px 14px 52px;
    background: linear-gradient(160deg, rgba(41, 62, 132, 0.05), rgba(41, 62, 132, 0.015));
    border: 1px solid rgba(41, 62, 132, 0.1);
    border-radius: var(--radius);
    margin-bottom: 12px;
}

.step-list li:last-child {
    margin-bottom: 0;
}

.step-list li::before {
    counter-increment: step;
    content: counter(step);
    position: absolute;
    left: 16px;
    top: 14px;
    width: 24px;
    height: 24px;
    line-height: 24px;
    text-align: center;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    font-size: 13px;
    font-weight: 700;
}

.step-list {
    counter-reset: step;
}

.step-list li h4 {
    font-size: 16px;
    color: var(--text);
    margin: 0 0 6px;
}

.step-list li p {
    margin: 0;
    font-size: 14.5px;
    color: var(--text-muted);
    line-height: 1.75;
    text-align: justify;
}

.module-note {
    background: rgba(255, 153, 4, 0.08);
    border-left: 3px solid var(--accent);
    border-radius: 0 var(--radius) var(--radius) 0;
    padding: 12px 18px;
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.75;
    margin: 0;
}

/* ---------- 安全与保障四格 ---------- */
.secure-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.secure-card {
    background: var(--card-bg);
    padding: 26px 22px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: transform 0.2s, box-shadow 0.2s;
}

.secure-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(41, 62, 132, 0.14);
}

.secure-card h3 {
    font-size: 16px;
    color: var(--brand);
    margin: 0 0 10px;
}

.secure-card p {
    margin: 0;
    font-size: 13.5px;
    color: var(--text-muted);
    line-height: 1.7;
    text-align: justify;
}

/* ---------- 成效三卡 ---------- */
.effect-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.effect-card {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    background: var(--card-bg);
    padding: 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border-left: 4px solid var(--brand);
}

.effect-card .ico {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    border-radius: 50%;
    background: rgba(41, 62, 132, 0.08);
    color: var(--brand);
    font-size: 18px;
    font-weight: 700;
}

.effect-card h3 {
    font-size: 16px;
    color: var(--brand);
    margin: 0 0 8px;
}

.effect-card p {
    margin: 0;
    font-size: 14px;
    color: var(--text-muted);
    line-height: 1.7;
    text-align: justify;
}

/* ---------- FAQ ---------- */
.faq-list {
    max-width: 860px;
    margin: 0 auto;
}

.faq-list details {
    background: var(--card-bg);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 16px;
    overflow: hidden;
}

.faq-list summary {
    list-style: none;
    cursor: pointer;
    padding: 18px 24px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.faq-list summary::-webkit-details-marker {
    display: none;
}

.faq-list summary::after {
    content: "+";
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    line-height: 24px;
    text-align: center;
    border-radius: 50%;
    background: rgba(41, 62, 132, 0.08);
    color: var(--brand);
    font-size: 16px;
    transition: transform 0.25s;
}

.faq-list details[open] summary::after {
    content: "−";
    transform: rotate(180deg);
}

.faq-list details p {
    margin: 0;
    padding: 0 24px 20px;
    font-size: 15px;
    color: var(--text-muted);
    line-height: 1.8;
    text-align: justify;
}

/* =====================================================
   响应式：平板 ≤1024px
   ===================================================== */
@media (max-width: 1024px) {
    .overview-flex {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .overview-pic img {
        max-width: 560px;
        margin: 0 auto;
    }

    .goal-grid,
    .platform-nav,
    .effect-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .module-block {
        padding: 26px 24px;
    }
}

/* =====================================================
   响应式：手机端 ≤768px
   ===================================================== */
@media (max-width: 768px) {
    .overview-flex {
        gap: 22px;
    }

    .goal-grid,
    .platform-nav,
    .effect-grid,
    .secure-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .module-block {
        padding: 20px 18px;
        margin-bottom: 24px;
    }

    .module-head h3 {
        font-size: 18px;
    }

    .module-head .num {
        width: 30px;
        height: 30px;
        line-height: 30px;
        font-size: 15px;
    }

    .step-list li {
        padding: 12px 14px 12px 48px;
    }

    .faq-list summary {
        font-size: 15px;
        padding: 16px 18px;
    }

    .faq-list details p {
        padding: 0 18px 18px;
    }
}