/* ==========================================================================
   上海双锦流体设备有限公司 · 全站响应式主题
   设计规范来源：Modao 原型 6acdecc375d0275ef60fe77c
   配色：主色 #0A5CD8 / 深海军蓝 #081733 #0B1F3D #050F24 / 亮蓝 #3EA6FF / 浅底 #F4F7FB
   说明：本文件在 Tailwind（Play CDN）之后加载，用于补充原型未覆盖的样式与
        后台富文本（数据库 HTML）排版还原，以及全站响应式兜底。
   ========================================================================== */

:root {
    --sj-primary: #0A5CD8;
    --sj-primary-dark: #0849AC;
    --sj-navy: #081733;
    --sj-navy-2: #0B1F3D;
    --sj-navy-3: #050F24;
    --sj-accent: #3EA6FF;
    --sj-light: #F4F7FB;
    --sj-text: #334155;
    --sj-muted: #64748B;
    --sj-border: #E2E8F0;
}

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
    font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    color: var(--sj-text);
    overflow-x: hidden;
}

img { max-width: 100%; }

/* ---------- 栅格纹理背景（原型同款） ---------- */
.grid-bg {
    background-image: linear-gradient(to right, rgba(125, 211, 252, .14) 1px, transparent 1px),
                      linear-gradient(to bottom, rgba(125, 211, 252, .14) 1px, transparent 1px);
    background-size: 52px 52px;
}
.grid-bg-light {
    background-image: linear-gradient(to right, rgba(10, 92, 216, .06) 1px, transparent 1px),
                      linear-gradient(to bottom, rgba(10, 92, 216, .06) 1px, transparent 1px);
    background-size: 40px 40px;
}

/* ---------- 锚点定位（避开吸顶导航） ---------- */
.anchor-offset { scroll-margin-top: 150px; }

/* ---------- 隐藏滚动条（原型锚点横向滚动条） ---------- */
.sj-noscroll { scrollbar-width: none; -ms-overflow-style: none; }
.sj-noscroll::-webkit-scrollbar { display: none; }

/* ---------- 文本截断 ---------- */
.sj-clamp-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.sj-clamp-3 { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

/* ==========================================================================
   后台富文本内容排版（产品详情 / 新闻 / 案例 / 单页 均由数据库输出 HTML）
   Tailwind preflight 已清空默认样式，此处统一还原为设计稿的字号与间距
   ========================================================================== */
.sj-prose { font-size: 13px; line-height: 1.9; color: #929292; font-family: "Microsoft YaHei", "微软雅黑", sans-serif; word-break: break-word; overflow-wrap: break-word; white-space: normal; }
.sj-prose p, .sj-prose div, .sj-prose span { word-break: break-word !important; overflow-wrap: break-word !important; white-space: normal !important; }
.sj-prose > *:first-child { margin-top: 0 !important; }
.sj-prose > *:last-child { margin-bottom: 0 !important; }

.sj-prose p { margin: 0 0 1.05em; }
.sj-prose h1, .sj-prose h2, .sj-prose h3, .sj-prose h4, .sj-prose h5, .sj-prose h6 {
    color: var(--sj-navy-2);
    font-weight: 800;
    line-height: 1.4;
    letter-spacing: -.01em;
    margin: 1.6em 0 .65em;
}
.sj-prose h1 { font-size: 26px; }
.sj-prose h2 {
    font-size: 21px;
    padding-left: 14px;
    border-left: 4px solid var(--sj-primary);
    border-radius: 2px;
}
.sj-prose h3 { font-size: 18px; }
.sj-prose h4 { font-size: 16px; }
.sj-prose h5, .sj-prose h6 { font-size: 15px; }

.sj-prose strong, .sj-prose b { color: var(--sj-navy-2); font-weight: 700; }
.sj-prose em { font-style: italic; }
.sj-prose a { color: var(--sj-primary); text-decoration: underline; text-underline-offset: 3px; }
.sj-prose a:hover { color: var(--sj-primary-dark); }

.sj-prose ul, .sj-prose ol { margin: 0 0 1.05em; padding-left: 1.35em; }
.sj-prose ul { list-style: disc; }
.sj-prose ol { list-style: decimal; }
.sj-prose li { margin: .38em 0; }
.sj-prose ul.list-paddingleft-2, .sj-prose ol.list-paddingleft-2 { padding-left: 1.6em; }

.sj-prose blockquote {
    margin: 1.2em 0;
    padding: 14px 18px;
    border-left: 4px solid var(--sj-accent);
    background: var(--sj-light);
    border-radius: 0 8px 8px 0;
    color: #475569;
}

.sj-prose hr { border: 0; border-top: 1px dashed var(--sj-border); margin: 1.8em 0; }

.sj-prose img {
    max-width: 100%; height: auto;
    border-radius: 12px;
    border: 1px solid var(--sj-border);
    margin: 1.1em auto;
    display: block;
}

.sj-prose table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.2em 0;
    font-size: 14px;
    display: block;
    overflow-x: auto;
}
.sj-prose th, .sj-prose td {
    border: 1px solid var(--sj-border);
    padding: 10px 12px;
    text-align: left;
    white-space: nowrap;
}
.sj-prose th { background: var(--sj-light); color: var(--sj-navy-2); font-weight: 700; }

/* 富文本内的 iframe（后台百度地图等）自适应 */
.sj-prose iframe { max-width: 100%; border-radius: 12px; border: 1px solid var(--sj-border); }
.sj-prose .ueditor_baidumap { width: 100% !important; height: 340px !important; }

/* 详情页摘要 / 简介文字（与正文统一） */
.sj-summary { font-size: 13px; line-height: 1.9; color: #929292; font-family: "Microsoft YaHei", "微软雅黑", sans-serif; }

/* ==========================================================================
   参数表格（原型深色/浅色两种表头）
   ========================================================================== */
.sj-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.sj-table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 640px; }
.sj-table thead { background: var(--sj-light); color: #475569; }
.sj-table th { text-align: left; font-weight: 700; padding: 12px 16px; white-space: nowrap; }
.sj-table td { padding: 12px 16px; color: #475569; border-top: 1px solid #F1F5F9; white-space: nowrap; }
.sj-table tbody tr { transition: background .15s; }
.sj-table tbody tr:hover { background: rgba(10, 92, 216, .045); }
.sj-table td:first-child { font-weight: 700; color: var(--sj-navy-2); }

/* 深色版参数表 */
.sj-table-dark { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 720px; }
.sj-table-dark th {
    text-align: left; font-weight: 700; padding: 13px 16px;
    color: #94A3B8; background: rgba(255,255,255,.05); white-space: nowrap;
}
.sj-table-dark td {
    padding: 13px 16px; color: #CBD5E1;
    border-top: 1px solid rgba(255,255,255,.08); white-space: nowrap;
}
.sj-table-dark tbody tr:hover { background: rgba(62, 166, 255, .07); }
.sj-table-dark td:first-child { color: #fff; font-weight: 700; }

/* ==========================================================================
   表单控件（Tailwind preflight 清空了默认外观，这里补回设计稿样式）
   ========================================================================== */
.sj-input, .sj-textarea, .sj-select {
    display: block;
    width: 100%;
    padding: 12px 14px;
    font-size: 14px;
    font-family: inherit;
    color: var(--sj-text);
    background: #fff;
    border: 1px solid var(--sj-border);
    border-radius: 8px;
    outline: none;
    transition: border-color .15s, box-shadow .15s;
}
.sj-input::placeholder, .sj-textarea::placeholder { color: #A0AEC0; }
.sj-input:focus, .sj-textarea:focus, .sj-select:focus {
    border-color: var(--sj-primary);
    box-shadow: 0 0 0 3px rgba(10, 92, 216, .12);
}
.sj-textarea { resize: vertical; min-height: 128px; line-height: 1.7; }
.sj-label { display: block; font-size: 13px; font-weight: 700; color: var(--sj-navy-2); margin-bottom: 8px; }
.sj-label .req { color: #E11D48; margin-left: 3px; }
.sj-select {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 18px;
    padding-right: 38px;
}
.sj-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 28px;
    font-size: 15px; font-weight: 700; font-family: inherit;
    color: #fff; background: var(--sj-primary);
    border: 1px solid transparent; border-radius: 8px;
    cursor: pointer; text-decoration: none;
    transition: background .15s, transform .15s, box-shadow .15s;
}
.sj-btn:hover { background: var(--sj-primary-dark); box-shadow: 0 8px 20px rgba(10, 92, 216, .25); }
.sj-btn:active { transform: translateY(1px); }
.sj-btn-ghost {
    color: #fff; background: transparent; border-color: rgba(255,255,255,.45);
}
.sj-btn-ghost:hover { background: rgba(255,255,255,.1); border-color: var(--sj-accent); color: var(--sj-accent); box-shadow: none; }
.sj-btn-outline {
    color: #475569; background: #fff; border-color: #CBD5E1;
}
.sj-btn-outline:hover { color: var(--sj-primary); border-color: var(--sj-primary); background: #fff; box-shadow: none; }

/* 表单校验 / 提示信息 */
.sj-form-note { font-size: 13px; color: var(--sj-muted); line-height: 1.7; }
.sj-alert { padding: 12px 16px; border-radius: 8px; font-size: 14px; margin-bottom: 18px; }
.sj-alert-ok { background: #ECFDF5; color: #047857; border: 1px solid #A7F3D0; }
.sj-alert-err { background: #FFF1F2; color: #BE123C; border: 1px solid #FECDD3; }

/* ==========================================================================
   分页（后台 $showpage 输出为 <a>/<span> 串）
   ========================================================================== */
.sj-pager { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 8px; }
.sj-pager a, .sj-pager span, .sj-pager em, .sj-pager b {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 40px; height: 40px; padding: 0 14px;
    font-size: 14px; font-style: normal; font-weight: 600;
    color: #475569; background: #fff;
    border: 1px solid var(--sj-border); border-radius: 8px;
    text-decoration: none; transition: all .15s;
}
.sj-pager a:hover { color: var(--sj-primary); border-color: var(--sj-primary); }
.sj-pager .current, .sj-pager .active, .sj-pager b {
    color: #fff; background: var(--sj-primary); border-color: var(--sj-primary);
}
.sj-pager .disabled { opacity: .45; pointer-events: none; }

/* ==========================================================================
   卡片 / 交互
   ========================================================================== */
.sj-card { background: #fff; border: 1px solid var(--sj-border); border-radius: 14px; overflow: hidden; transition: box-shadow .25s, border-color .25s, transform .25s; }
.sj-card:hover { box-shadow: 0 18px 40px -18px rgba(8, 23, 51, .28); border-color: rgba(10, 92, 216, .35); }
.sj-link-arrow { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 700; color: var(--sj-primary); text-decoration: none; }
.sj-link-arrow:hover { gap: 10px; }

/* Tab 激活态（原型 .industry-tab / .case-tab 共用） */
.sj-tab { cursor: pointer; border: 1px solid var(--sj-border); background: #fff; color: #475569; }
.sj-tab.active { background: var(--sj-primary); color: #fff; border-color: var(--sj-primary); box-shadow: 0 8px 18px rgba(10, 92, 216, .25); }

/* 吸顶副导航（产品中心分类锚点） */
.sj-subnav { position: sticky; top: 68px; z-index: 40; background: #fff; border-bottom: 1px solid var(--sj-border); box-shadow: 0 1px 2px rgba(8,23,51,.05); }

/* ==========================================================================
   响应式兜底：小屏下缩小内边距、修正固定定位元素
   ========================================================================== */
@media (max-width: 1023px) {
    .anchor-offset { scroll-margin-top: 120px; }
    .sj-subnav { top: 60px; }
}

@media (max-width: 640px) {
    .sj-prose { font-size: 13px; line-height: 1.85; }
    .sj-prose h1 { font-size: 22px; }
    .sj-prose h2 { font-size: 18px; padding-left: 11px; border-left-width: 3px; }
    .sj-prose h3 { font-size: 16.5px; }
    .sj-table, .sj-table-dark { font-size: 13px; }
    .sj-table th, .sj-table td, .sj-table-dark th, .sj-table-dark td { padding: 10px 12px; }
    .sj-btn { padding: 11px 22px; font-size: 14px; }
    .anchor-offset { scroll-margin-top: 104px; }
}

/* 打印时隐藏交互元素 */
@media print {
    .sj-no-print { display: none !important; }
}