/* MaxWiz 前台样式 —— 由 layout.php 抽出，可直接修改 */
/* 最后更新：2026-10-24 17:05 */

  /* ===================================================================
     设计令牌
     统一字号 / 颜色 / 圆角 / 阴影，避免 0.5px 字号梯子和几十种近似色。
     =================================================================== */
  :root{
    /* 品牌 */
    --brand:#1F3864;
    --brand-dark:#16294A;
    --brand-soft:#EEF3FB;

    /* 文字 */
    --ink:#16294A;      /* 标题 */
    --ink-2:#33415C;    /* 正文 */
    --ink-3:#6B788F;    /* 次要说明 */
    --ink-4:#9AA4B5;    /* 弱化 */

    /* 线与底 */
    --line:#E6EBF3;
    --line-soft:#F0F2F6;
    --bg:#FFFFFF;
    --bg-2:#F7F9FC;
    --bg-3:#EEF3FB;

    --ok:#1E7B34;

    /* 字号（8 档） */
    --fs-xs:12px;
    --fs-sm:13px;
    --fs-base:14px;
    --fs-md:16px;
    --fs-lg:20px;
    --fs-xl:26px;
    --fs-2xl:34px;

    /* 圆角（3 档） */
    --r-sm:6px;
    --r-md:10px;
    --r-full:999px;

    /* 阴影（2 档） */
    --sh-sm:0 1px 2px rgba(22,41,74,.06);
    --sh-md:0 10px 30px rgba(22,41,74,.10);

    /* 区块节奏 */
    --sec-y:64px;
  }

  /* 视觉隐藏但保留给读屏与搜索引擎 */
  /* 蜜罐字段：给机器人填，人看不见 */
  .hp-field{position:absolute!important;left:-9999px!important;top:auto!important;width:1px!important;height:1px!important;overflow:hidden!important}
  .sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
*{box-sizing:border-box}
  body{margin:0;font:15px/1.7 -apple-system,"Segoe UI","Microsoft YaHei",sans-serif;color:#222;background:#fff}
  a{color:#1F3864;text-decoration:none}
  a:hover{text-decoration:underline}
  .wrap{max-width:1100px;margin:0 auto;padding:0 20px}
  /* 导航固定在顶部：滚动到任何位置都保持可见 */
  header.site{
    position:fixed;top:0;left:0;right:0;z-index:900;
    background:#1F3864;border-bottom:1px solid rgba(255,255,255,.10);
  }
  /* 无 Banner 的页面：导航脱离文档流后要给它留出高度，否则首屏内容被盖住。
     --nav-h 由 layout 末尾的脚本按实际高度写入（移动端导航会换行变高）。 */
  body:not(.has-hero){padding-top:var(--nav-h,72px)}
  header.site .bar{display:flex;align-items:center;justify-content:space-between;height:80px;gap:28px}

  /* 有 Banner 的页面：头部浮在 Banner 之上（对齐旧站 .header 的 absolute 方案） */
  .top-box{position:relative}
  header.site.overlay{
    position:fixed;top:0;left:0;right:0;z-index:900;
    background:transparent;border-bottom:2px solid rgba(255,255,255,.14);
    transition:background-color .18s ease,box-shadow .18s ease;
  }
  /* 向下滚动后切换成实体深色底，保证白字在任何页面内容上都清晰 */
  header.site.overlay.stuck{
    background:#1F3864;border-bottom-color:rgba(255,255,255,.10);
    box-shadow:0 2px 14px rgba(10,18,34,.22);
  }
  header.site.overlay .bar{height:88px}
  /* 顶部暗色渐变：保证导航文字在任何 Banner 上都清晰 */
  .top-box-home::before{
    content:'';position:absolute;top:0;left:0;right:0;height:150px;z-index:50;
    background:linear-gradient(to bottom,rgba(10,18,34,.62),rgba(10,18,34,0));
    pointer-events:none;
  }
  .brand{display:flex;align-items:center;color:#fff;flex:0 0 auto}
  .brand:hover{text-decoration:none}
  /* 品牌标识用的是「图标 + 字标」的整图（白色透明版），高度决定整体大小 */
  .brand img{height:58px;width:auto;display:block}
  nav.top{display:flex;gap:22px;flex-wrap:wrap;justify-content:flex-end}
  nav.top > a{color:rgba(255,255,255,.82);font-size:14.5px;white-space:nowrap}
  nav.top > a:hover{color:#fff;text-decoration:none}
  @media (max-width:900px){
    header.site .bar{height:auto;padding:12px 0;flex-direction:column;align-items:flex-start;gap:10px}
    /* 窄屏导航排成一行横向滑动，避免 8 个链接换行把头部撑得很高 */
    nav.top{width:100%;flex-wrap:nowrap;overflow-x:auto;justify-content:flex-start;gap:18px;
      -webkit-overflow-scrolling:touch;scrollbar-width:none}
    nav.top::-webkit-scrollbar{display:none}
    nav.top > a{flex:0 0 auto;font-size:13.5px}
    .brand img{height:44px}
    .msg-form .card{padding:18px 16px}
  }
  main{padding:32px 0 56px;min-height:60vh}
  main.has-hero{padding-top:34px}
  h1.page{font-size:24px;margin:0 0 22px;font-weight:700}
  .grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:22px}
  .card{border:1px solid #eee;border-radius:6px;overflow:hidden;background:#fff}
  .card img{width:100%;height:170px;object-fit:cover;display:block;background:#f4f4f4}
  .card .bd{padding:14px 16px}
  .card h3{margin:0 0 8px;font-size:15px;line-height:1.5}
  .meta{color:#888;font-size:12px}
  .muted{color:#6b7688}

  /* ---------- 首页「产品中心」：文字分类 + 悬停展开 ---------- */
  .pcat-tabs{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;padding-bottom:16px;border-bottom:1px solid #eef1f6}
  .pcat-tab{
    display:inline-flex;align-items:center;justify-content:center;padding:10px 26px;border:1px solid #dfe5ef;
    border-radius:999px;background:#fff;color:#33415c;font-size:14.5px;font-weight:600;
    cursor:pointer;transition:.16s;
  }
  .pcat-tab:hover{border-color:#b9c8e0;color:#1F3864}
  .pcat-tab.on{background:#1F3864;border-color:#1F3864;color:#fff}
  .pcat-panels{padding-top:20px}
  .pcat-panel{display:none}
  .pcat-panel.on{display:block}
  /* 最多两行：用固定行高把每行锁死，容器高度正好等于两行，第三行不会露出边框 */
  /* 四列：卡片宽度接近产品图本身的比例，减少大片空白 */
  .pcat-grid{
    display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
    grid-auto-rows:286px;
    max-height:calc(2 * 286px + 20px);overflow:hidden;
  }
  .pitem{display:flex;flex-direction:column;gap:12px;color:inherit;height:100%;overflow:hidden}
  .pitem:hover{text-decoration:none}
  .pitem-thumb{
    flex:1 1 auto;min-height:0;display:flex;align-items:center;justify-content:center;
    background:var(--bg-2);border:1px solid var(--line-soft);border-radius:var(--r-md);
    overflow:hidden;transition:.18s;
  }
  .pitem:hover .pitem-thumb{border-color:#C9D6EA;background:#fff;box-shadow:var(--sh-md)}
  .pitem-thumb img{width:100%;height:100%;object-fit:contain;padding:16px;transition:transform .25s ease}
  .pitem:hover .pitem-thumb img{transform:scale(1.04)}
  .pitem-noimg{font-size:var(--fs-sm);color:#C3CBD8;letter-spacing:.5px}
  /* 名字固定两行高度，保证每一行高度完全一致 */
  .pitem-name{
    font-size:var(--fs-base);line-height:1.55;color:var(--ink-2);text-align:center;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
    overflow:hidden;flex:0 0 auto;min-height:0;
  }
  .pitem:hover .pitem-name{color:var(--brand)}
  .pcat-all{display:inline-block;margin-top:22px;font-size:var(--fs-sm);color:var(--brand)}
  @media (max-width:1100px){
    .pcat-grid{grid-template-columns:repeat(3,1fr);grid-auto-rows:270px;max-height:calc(2 * 270px + 20px)}
  }
  @media (max-width:900px){
    .pcat-grid{grid-template-columns:repeat(2,1fr);gap:16px;grid-auto-rows:236px;max-height:calc(2 * 236px + 16px)}
    .pcat-tab{padding:8px 15px;font-size:var(--fs-sm)}
  }
  @media (max-width:620px){
    .pcat-grid{gap:14px;grid-auto-rows:200px;max-height:calc(2 * 200px + 14px)}
    .pitem-thumb img{padding:10px}
    .pitem-name{font-size:var(--fs-sm)}
  }


  /* ---------- 发展历程：竖向时间轴 ---------- */
  .timeline{position:relative;margin:26px 0 0;padding-left:26px}
  .timeline::before{
    content:'';position:absolute;left:6px;top:8px;bottom:8px;width:2px;
    background:linear-gradient(180deg,#1F3864 0%,#4C7DD6 60%,#DCE5F3 100%);
    border-radius:2px;
  }
  .tl-item{position:relative;padding:0 0 26px 6px}
  .tl-item:last-child{padding-bottom:0}
  .tl-item::before{
    content:'';position:absolute;left:-26px;top:7px;width:11px;height:11px;border-radius:50%;
    background:#fff;border:2.5px solid var(--brand);box-sizing:border-box;
  }
  .tl-item:first-child::before{background:var(--brand)}
  .tl-year{
    display:inline-block;font-size:var(--fs-md);font-weight:700;color:var(--brand);
    letter-spacing:.02em;font-variant-numeric:tabular-nums;line-height:1.4;
  }
  .tl-body{margin-top:2px}
  .tl-body strong{display:block;font-size:var(--fs-base);color:var(--ink);line-height:1.6}
  .tl-body p{margin:3px 0 0;font-size:var(--fs-base);line-height:1.8;color:var(--ink-3)}
  @media (max-width:620px){
    .timeline{padding-left:20px}
    .timeline::before{left:4px}
    .tl-item::before{left:-20px;width:9px;height:9px;border-width:2px}
  }

  /* 三分栏（解决方案新增第三个方案后使用） */
  .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
  @media (max-width:900px){ .grid-3{grid-template-columns:repeat(2,1fr);gap:14px} }
  @media (max-width:560px){ .grid-3{grid-template-columns:1fr} }

  /* 产品页顶部的「编程器能力」清单 */
  .prod-feats{
    display:grid;grid-template-columns:repeat(5,1fr);gap:12px;
    margin:0 0 22px;padding:16px 18px;
    background:var(--bg-2);border:1px solid var(--line-soft);border-radius:var(--r-md);
  }
  .prod-feat{display:flex;gap:8px;align-items:flex-start;font-size:var(--fs-sm);line-height:1.55;color:var(--ink-2)}
  .prod-feat svg{flex:0 0 auto;margin-top:2px;color:var(--brand)}
  @media (max-width:1000px){ .prod-feats{grid-template-columns:repeat(2,1fr)} }
  @media (max-width:560px){ .prod-feats{grid-template-columns:1fr;gap:10px;padding:14px} }

  /* ---------- 前台表单（客户留言） ---------- */
  .msg-form .card{padding:24px 26px}
  .field{margin-bottom:18px}
  .field > label,.field .lbl{display:block;margin-bottom:7px;font-size:13.5px;font-weight:600;color:#33415c}
  .field input[type=text],.field input[type=tel],.field input[type=email],
  .field input[type=url],.field input:not([type]),.field textarea{
    width:100%;padding:11px 13px;border:1px solid #d7dde8;border-radius:6px;
    font:inherit;font-size:14.5px;line-height:1.5;color:#1a2332;background:#fff;
    transition:border-color .15s ease,box-shadow .15s ease;
  }
  .field textarea{min-height:120px;resize:vertical}
  .field input:focus,.field textarea:focus{
    outline:none;border-color:#1F3864;box-shadow:0 0 0 3px rgba(31,56,100,.10);
  }
  .field input::placeholder,.field textarea::placeholder{color:#a3adbd}
  .field .hint{margin-top:6px;font-size:12.5px;color:#8a94a6;line-height:1.6}
  .field .err{margin-top:6px;font-size:12.5px;color:#c62828}
  .req{color:#c62828;font-weight:400}
  .actions{display:flex;align-items:center;gap:12px;margin-top:6px}
  .btn{display:inline-block;padding:10px 20px;border:1px solid #d7dde8;border-radius:6px;
    background:#fff;color:#33415c;font-size:14px;line-height:1.4;cursor:pointer;text-align:center}
  .btn:hover{text-decoration:none;border-color:#b9c4d6;background:#f7f9fc}
  .btn-primary{background:#1F3864;border-color:#1F3864;color:#fff;font-weight:600}
  .btn-primary:hover{background:#17294a;border-color:#17294a;color:#fff}
  .flash{padding:12px 16px;border-radius:6px;margin-bottom:18px;font-size:14px}
  .flash.ok{background:#e6f4ea;border:1px solid #bfe3c9;color:#1e7b34}

  .pager{display:flex;gap:6px;margin-top:34px;flex-wrap:wrap;align-items:center}
  .pager a,.pager span{padding:6px 11px;border:1px solid #ddd;border-radius:4px;font-size:13px;color:#333}
  .pager .cur{background:#1F3864;border-color:#1F3864;color:#fff}
  article.news h1{font-size:22px;line-height:1.5;margin:0 0 10px}
  article.news .meta{margin-bottom:22px;padding-bottom:14px;border-bottom:1px solid #eee}
  article.news .body img{max-width:100%;height:auto}
  footer.site{border-top:1px solid #e5e5e5}
  /* ---- footer ---- */
  footer.site{background:#1F3864;color:rgba(255,255,255,.82);font-size:13.5px;border-top:0}
  .footer-main{display:grid;grid-template-columns:1fr 1.85fr;gap:38px;padding:44px 20px 34px}
  .footer-brand{display:flex;gap:26px;align-items:flex-start}
  .footer-qr{display:flex;flex-direction:column;align-items:center;gap:8px;flex:0 0 auto}
  .footer-qr img{width:112px;height:112px;border-radius:6px;background:#fff;padding:5px;display:block}
  .footer-qr span{font-size:12.5px;color:rgba(255,255,255,.65)}
  .footer-contact{min-width:0}
  .footer-logo{display:inline-flex;align-items:center;margin-bottom:14px}
  /* 页脚用上下堆叠版（与源 Logo 比例一致） */
  .footer-logo img{height:74px;width:auto;display:block}
  .footer-contact p{margin:0 0 8px;line-height:1.7;word-break:break-word}
  .footer-contact a{color:rgba(255,255,255,.82)}
  .footer-contact a:hover{color:#fff}
  .footer-cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(112px,1fr));gap:18px 20px}
  .footer-col h4{margin:0 0 12px;font-size:15px;font-weight:600;color:#fff}
  .footer-col h4 a{color:#fff}
  .footer-col a{display:block;color:rgba(255,255,255,.72);font-size:13px;line-height:2;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .footer-col a:hover{color:#fff;text-decoration:none}
  .footer-bar{border-top:1px solid rgba(255,255,255,.12);background:rgba(0,0,0,.12)}
  .footer-bar-inner{display:flex;align-items:center;gap:18px;flex-wrap:wrap;padding:16px 20px;font-size:12.5px;color:rgba(255,255,255,.68)}
  .footer-bar-inner a{color:rgba(255,255,255,.82)}
  .footer-bar-inner a:hover{color:#fff}
  .footer-badge{height:32px;width:auto;margin-left:auto}
  @media (max-width:1000px){
    .footer-main{grid-template-columns:1fr;gap:28px}
    .footer-cols{grid-template-columns:repeat(3,1fr)}
    .footer-badge{margin-left:0}
  }
  @media (max-width:560px){
    .footer-brand{flex-direction:column}
    .footer-cols{grid-template-columns:repeat(2,1fr)}
  }
  .crumb{color:#888;font-size:13px;margin-bottom:16px}

  /* ---- home hero (full-bleed) ---- */
  .hero{position:relative;overflow:hidden;background:#0f172a;width:100%}
  .hero-track{display:flex;transition:transform .35s ease;will-change:transform}
  /* 与旧站一致：Banner 高度 = min(宽度/3, 640px)，超出部分裁掉 */
  .hero-slide{flex:0 0 100%;position:relative;aspect-ratio:3 / 1;max-height:640px;overflow:hidden}
  .hero-slide img{width:100%;height:100%;object-fit:cover;object-position:50% 0;display:block}
  .hero-dots{position:absolute;left:0;right:0;bottom:18px;display:flex;gap:8px;justify-content:center}
  .hero-dots button{width:9px;height:9px;border-radius:50%;border:0;background:rgba(255,255,255,.45);cursor:pointer;padding:0}
  .hero-dots button.on{background:#fff;width:22px;border-radius:5px}
  /* ---------- 最新支持：无缝横向滚动 ----------
     间距用 span 内的 ::after 分隔点实现（不用 gap / margin），
     两份内容宽度完全一致，translateX(-50%) 走完恰好回到起点，不会跳变。 */
  .ticker{
    background:linear-gradient(90deg,#e9f0fb 0%,#f7fafe 55%,#e9f0fb 100%);
    border-top:1px solid #dde6f4;border-bottom:1px solid #dde6f4;
    box-shadow:inset 0 1px 0 rgba(255,255,255,.7);
  }
  .ticker-inner{display:flex;align-items:center;gap:16px;padding:11px 20px;overflow:hidden}
  .ticker-label{
    flex:0 0 auto;display:inline-flex;align-items:center;gap:7px;
    background:#1F3864;color:#fff;font-size:13px;font-weight:600;letter-spacing:.3px;
    padding:6px 14px;border-radius:6px;box-shadow:0 2px 8px rgba(31,56,100,.28);
  }
  .ticker-label svg{flex:0 0 auto;color:#a9c6f5}
  /* 绿色呼吸点：暗示"有更新"，动感克制 */
  .ticker-label::after{
    content:'';flex:0 0 auto;width:6px;height:6px;border-radius:50%;background:#4ade80;
    box-shadow:0 0 0 0 rgba(74,222,128,.65);animation:livePulse 2.2s ease-out infinite;
  }
  @keyframes livePulse{
    0%{box-shadow:0 0 0 0 rgba(74,222,128,.65)}
    70%{box-shadow:0 0 0 7px rgba(74,222,128,0)}
    100%{box-shadow:0 0 0 0 rgba(74,222,128,0)}
  }
  .ticker-view{
    overflow:hidden;flex:1;position:relative;
    /* 两端渐隐：文字淡入淡出，比硬切边干净得多 */
    -webkit-mask-image:linear-gradient(90deg,transparent,#000 28px,#000 calc(100% - 28px),transparent);
    mask-image:linear-gradient(90deg,transparent,#000 28px,#000 calc(100% - 28px),transparent);
  }
  .ticker-track{
    display:flex;width:max-content;white-space:nowrap;
    animation:ticker 60s linear infinite;will-change:transform;
  }
  .ticker-track span{color:#2c3b57;font-size:14px;line-height:1.5}
  .ticker-track span::after{content:'·';margin:0 18px;color:#9db1d1;font-weight:700}
  .ticker-view:hover .ticker-track{animation-play-state:paused}
  @keyframes ticker{from{transform:translateX(0)}to{transform:translateX(-50%)}}
  .ticker-more{
    flex:0 0 auto;font-size:13px;font-weight:600;color:#1F3864;
    padding:5px 13px;border:1px solid #c7d5ea;border-radius:6px;background:#fff;transition:.15s;
  }
  .ticker-more:hover{background:#1F3864;border-color:#1F3864;color:#fff;text-decoration:none}
  /* 系统开启「减少动画」时不滚动，改为可手动横向滚动查看 */
  @media (prefers-reduced-motion: reduce){
    .ticker-track{animation:none;transform:none}
    .ticker-label::after{animation:none}
    .ticker-view{overflow-x:auto;-webkit-overflow-scrolling:touch;mask-image:none;-webkit-mask-image:none}
  }
  @media (max-width:620px){
    .ticker-inner{gap:10px;padding:9px 14px}
    .ticker-label{font-size:12px;padding:5px 10px;gap:5px}
    .ticker-track span{font-size:13px}
    .ticker-more{display:none}
  }
  /* 区块：留白加大 + 分层底色，取代原来"每节都拉一条分隔线"的做法 */
  /* 关键：底色要铺满整屏。页面内容被包在 1100px 容器里，直接设背景只能铺中间一条，
     用负外边距抵消容器宽度差，正文仍对齐原来的网格。 */
  .sec{
    padding-top:var(--sec-y);
    padding-bottom:var(--sec-y);
    padding-left:calc((100vw - 100%) / 2);
    padding-right:calc((100vw - 100%) / 2);
    margin-left:calc((100vw - 100%) / -2);
    margin-right:calc((100vw - 100%) / -2);
    border-bottom:0;
  }
  /* 浅灰：比纯白深约 6%，肉眼能看出分界 */
  .sec-alt{background:#EFF3F9}
  /* 技术感底纹：极淡的蓝图网格，暗示电路板，成本几乎为零 */
  .sec-tech{
    background-color:#FFFFFF;
    background-image:
      linear-gradient(rgba(31,56,100,.05) 1px, transparent 1px),
      linear-gradient(90deg, rgba(31,56,100,.05) 1px, transparent 1px);
    background-size:48px 48px;
  }
  /* 深色锚点：整页只有一段，用来打断"一白到底"的节奏 */
  .sec-dark{
    background:linear-gradient(180deg,#16294A 0%,#1C3560 100%);
    color:rgba(255,255,255,.82);
  }
  .sec-dark .sec-head h2{color:#fff}
  .sec-dark .sec-head h2::before{background:#5C8DE0}
  .sec-dark .sec-head a{color:rgba(255,255,255,.7)}
  .sec-dark .sec-head a:hover{color:#fff}
  .sec-dark .tile{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.14)}
  .sec-dark .tile:hover{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.32);box-shadow:0 12px 32px rgba(0,0,0,.28)}
  .sec-dark .tile strong{color:#fff}
  .sec-dark .tile-thumb{background:#fff;border-color:transparent}
  .sec-dark .tile-noimg{color:#93A7C8}
  .sec:last-child{border-bottom:0}
  @media (max-width:760px){
    .sec{padding:44px 0}
    .sec-tech{background-size:32px 32px}
  }
  .sec-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;gap:12px}
  .sec-head h2{
    display:flex;align-items:center;gap:12px;
    font-size:var(--fs-xl);line-height:1.25;letter-spacing:-.01em;margin:0;color:var(--ink);
  }
  /* 标题左侧的品牌色短竖条：给整页一个稳定的垂直节奏 */
  .sec-head h2::before{
    content:'';flex:0 0 auto;width:4px;height:20px;border-radius:2px;background:var(--brand);
  }
  .sec-head a{font-size:var(--fs-sm);color:var(--ink-3)}
  .sec-head a:hover{color:var(--brand)}
  /* 首页「支持的芯片厂商」右侧的快捷查询框 */
  .sec-head-chip{align-items:center;flex-wrap:wrap}
  .chip-search-mini{display:flex;gap:8px;flex:0 0 auto}
  .chip-search-mini input{
    width:230px;padding:9px 13px;border:1px solid #d7dde8;border-radius:8px;
    font:inherit;font-size:13.5px;color:#1a2332;background:#fff;transition:.15s;
  }
  .chip-search-mini input::placeholder{color:#a3adbd}
  .chip-search-mini input:focus{outline:none;border-color:#1F3864;box-shadow:0 0 0 3px rgba(31,56,100,.10)}
  .chip-search-mini button{
    padding:9px 18px;border:0;border-radius:8px;background:#1F3864;color:#fff;
    font-size:13.5px;font-weight:600;cursor:pointer;white-space:nowrap;transition:.15s;
  }
  .chip-search-mini button:hover{background:#17294a}
  @media (max-width:620px){
    .sec-head-chip{flex-direction:column;align-items:stretch;gap:12px}
    .chip-search-mini input{width:auto;flex:1}
  }
  .grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
  .tile{display:flex;flex-direction:column;gap:6px;padding:20px;border:1px solid #e5e9f0;border-radius:10px;background:#fff;color:inherit}
  .tile:hover{border-color:#1F3864;text-decoration:none;box-shadow:0 6px 20px rgba(22,41,74,.07)}
  .tile strong{font-size:15.5px;color:#16294a}
  .tile .badge{align-self:flex-start;margin-top:6px;background:#eef3fb;color:#1F3864;font-size:12px;padding:2px 9px;border-radius:10px}

  /* 带图的产品分类卡片 */
  .grid-4{grid-template-columns:repeat(4,1fr)}
  .tile-card{padding:14px;gap:12px;align-items:center;text-align:center}
  .tile-thumb{
    display:flex;align-items:center;justify-content:center;
    width:100%;height:150px;border-radius:8px;background:#f7f9fc;overflow:hidden;
  }
  .tile-thumb img{max-width:100%;max-height:100%;object-fit:contain;transition:transform .25s ease}
  .tile-card:hover .tile-thumb img{transform:scale(1.04)}
  .tile-noimg{color:#b6bfcc;font-size:13px;padding:0 8px}
  @media (max-width:1000px){ .grid-4{grid-template-columns:repeat(2,1fr)} }
  @media (max-width:560px){ .grid-4{grid-template-columns:1fr} }
  /* 解决方案：两列，图片更高一些 */
  .grid-2{grid-template-columns:repeat(2,1fr)}
  .tile-wide .tile-thumb{height:220px;background:#fff;border:1px solid #eef1f6}
  .tile-wide .tile-thumb img{object-fit:cover;width:100%}
  @media (max-width:760px){ .grid-2{grid-template-columns:1fr} }
  .logos{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
  /* Logo 墙统一处理：字形与图片都当成"标记"，鼠标移上去才恢复品牌色。
     这样 13 个真 Logo 和 80 个文字标牌看起来是一套东西，不像"缺图"。 */
  .logo{
    display:flex;align-items:center;justify-content:center;
    width:132px;height:66px;padding:10px;
    border:1px solid var(--line-soft);border-radius:var(--r-sm);
    background:#FCFDFE;transition:border-color .18s,background .18s,box-shadow .18s;
  }
  .logo img{
    max-width:100%;max-height:100%;object-fit:contain;
    transition:filter .2s ease,opacity .2s ease,transform .2s ease;
  }
  /* 只有「支持的芯片厂商」墙去色：那里 86% 没有 Logo，需要把真 Logo 和文字
     统一成同一种"标记"观感。合作客户是真实品牌 Logo，保留彩色更有说服力。 */
  .logos-viewport[data-kind="vendor"] .logo img{filter:grayscale(1);opacity:.72}
  .logos-viewport[data-kind="vendor"] .logo:hover img{filter:none;opacity:1}
  .logo:hover{border-color:#C9D6EA;background:#fff;box-shadow:var(--sh-sm)}
  .logo:hover img{filter:none;opacity:1;transform:scale(1.04)}
  .logo-text{display:inline-flex;align-items:center;padding:8px 14px;border:1px solid var(--line);border-radius:16px;font-size:var(--fs-sm);color:var(--ink-2);background:#fff}
  /* 尚未上传 Logo 的厂商：用同尺寸文字框，避免与图片 Logo 视觉不一致 */
  .logo-empty{color:var(--ink-2);font-size:var(--fs-sm);font-weight:650;text-align:center;line-height:1.38;padding:6px 8px;letter-spacing:.01em}
  .logo-empty span{display:block;word-break:break-word}
  .logo-empty:hover{background:#fff;border-color:#C9D6EA}
  .logo-empty:hover span{color:var(--brand)}

  /* Logo 墙：固定 4 行，框内自动向上滚动（内容复制两份实现无缝循环） */
  .logos-viewport{
    --logo-row:66px; --logo-gap:14px;
    max-height:calc(4 * var(--logo-row) + 3 * var(--logo-gap));
    overflow:hidden;position:relative;
    /* 上下边缘渐隐，滚动时不会有生硬的切断感 */
    -webkit-mask-image:linear-gradient(to bottom,transparent,#000 12px,#000 calc(100% - 12px),transparent);
    mask-image:linear-gradient(to bottom,transparent,#000 12px,#000 calc(100% - 12px),transparent);
  }
  .logos-track{display:flex;flex-direction:column;animation:logosRoll linear infinite}
  .logos-set{display:flex;flex-wrap:wrap;gap:var(--logo-gap)}
  /* 行距用 padding-bottom 计入块高，两份高度才严格相等，-50% 才能无缝 */
  .logos-set{padding-bottom:var(--logo-gap)}
  @keyframes logosRoll{from{transform:translateY(0)}to{transform:translateY(-50%)}}
  /* 鼠标停留暂停，方便点开某个 Logo */
  .logos-viewport:hover .logos-track{animation-play-state:paused}
  /* 内容不足 4 行时不需要滚动 */
  .logos-viewport.no-roll .logos-track{animation:none}
  .logos-viewport.no-roll{-webkit-mask-image:none;mask-image:none}
  @media (prefers-reduced-motion: reduce){
    .logos-viewport{overflow-y:auto;-webkit-mask-image:none;mask-image:none}
    .logos-track{animation:none}
    .logos-viewport .logos-set[aria-hidden="true"]{display:none}
  }
  @media (max-width:620px){
    .logos-viewport{--logo-row:58px;--logo-gap:10px}
    .logo{width:104px;height:58px;padding:7px}
    .logos-set{gap:10px;padding-bottom:10px}
  }
  .chips{display:flex;flex-wrap:wrap;gap:10px}
  .chip{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border:1px solid #e2e5ea;border-radius:16px;font-size:13px;color:#33415c;background:#fff}
  .chip:hover{border-color:#1F3864;color:#1F3864;text-decoration:none}
  .chip em{font-style:normal;color:#9aa4b5;font-size:11.5px}
  /* 新闻：带缩略图的卡片式列表，比纯文字行更有分量 */
  .news-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:14px 24px}
  .news-list li{display:flex;gap:14px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line-soft);justify-content:flex-start}
  .news-list li:last-child{border-bottom:0}
  .news-thumb{
    flex:0 0 92px;width:92px;height:64px;border-radius:var(--r-sm);overflow:hidden;
    background:var(--bg-2);border:1px solid var(--line-soft);
    display:flex;align-items:center;justify-content:center;
  }
  .news-thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .3s ease}
  .news-list li:hover .news-thumb img{transform:scale(1.06)}
  .news-thumb.is-empty{color:#C3CBD8;font-size:11px;letter-spacing:.5px}
  .news-body{min-width:0;flex:1}
  .news-list a{display:block;color:var(--ink-2);font-weight:500;font-size:var(--fs-base);line-height:1.55;
    overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .news-list a:hover{color:var(--brand)}
  .news-date{display:block;margin-top:4px;font-size:var(--fs-xs);color:var(--ink-4)}
  @media (max-width:900px){
    .news-list{grid-template-columns:1fr}
  }
  .cta{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;background:#f7f9fc;border-radius:12px;padding:26px 28px;margin:32px 0;border:1px solid #e9eef6}
  .btn-primary{display:inline-block;padding:11px 24px;background:#1F3864;color:#fff;border-radius:8px;font-size:14px}
  .btn-primary:hover{background:#16294a;color:#fff;text-decoration:none}
  .cat-body img,.news .body img{max-width:100%;height:auto}
  .doc-list{list-style:none;margin:0;padding:0}
  .doc-list li{display:flex;align-items:center;gap:14px;padding:11px 0;border-bottom:1px dashed #eceff4}
  .doc-date{flex:0 0 92px;color:#9aa4b5;font-size:12.5px;font-variant-numeric:tabular-nums}
  .doc-dl{color:#1e7b34;font-size:12px;margin-left:6px}
  .download-btn{display:inline-block;padding:10px 20px;background:#1F3864;color:#fff;border-radius:8px}
  .download-btn:hover{color:#fff;text-decoration:none;background:#16294a}
  .cat-sub{font-size:17px;margin:0 0 12px;color:#16294a}
  /* ---- product center (sidebar + grid) ---- */
  .prod-layout{display:grid;grid-template-columns:238px 1fr;gap:28px;align-items:start;padding:26px 0 50px}
  .prod-side{border:1px solid #e5e9f0;border-radius:10px;background:#fff;padding:14px;position:sticky;top:16px}
  .prod-side-title{font-size:12.5px;color:#8a94a6;letter-spacing:.5px;margin:4px 6px 10px;text-transform:uppercase}
  .prod-link{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:9px 10px;border-radius:7px;color:#33415c;font-size:14px}
  .prod-link:hover{background:#f4f7fc;text-decoration:none;color:#1F3864}
  .prod-link.on{background:#1F3864;color:#fff;font-weight:600}
  .prod-link.on em{color:#cbd6ea}
  .prod-link em{font-style:normal;font-size:12px;color:#9aa4b5}
  .prod-sub{margin:2px 0 6px 10px;padding-left:10px;border-left:2px solid #eef1f6}
  .prod-sublink{display:flex;justify-content:space-between;gap:8px;padding:7px 9px;border-radius:6px;color:#5c6678;font-size:13px}
  .prod-sublink:hover{background:#f4f7fc;color:#1F3864;text-decoration:none}
  .prod-sublink.on{background:#eef3fb;color:#1F3864;font-weight:600}
  .prod-sublink em{font-style:normal;font-size:11.5px;color:#9aa4b5}
  .prod-side-note{margin-top:14px;padding:12px;border-radius:8px;background:#f7f9fc;font-size:12.5px;color:#5c6678;line-height:1.7}
  .prod-main-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:14px}
  .prod-main-head h1{font-size:22px;margin:0;color:#16294a}
  .prod-main-head h1 .prod-h1-sub{font-size:16px;font-weight:600;color:#5c6678}
  .prod-search{display:flex;gap:10px;margin-bottom:22px;max-width:520px}
  .prod-search input{flex:1;padding:10px 13px;border:1px solid #ccd6e4;border-radius:7px;font-size:14px}
  .prod-search input:focus{outline:none;border-color:#1F3864;box-shadow:0 0 0 3px rgba(31,56,100,.08)}
  .prod-search button{padding:10px 20px;background:#1F3864;color:#fff;border:0;border-radius:7px;font-size:14px;cursor:pointer}
  .prod-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:18px}
  .prod-card{display:block;border:1px solid #e5e9f0;border-radius:10px;background:#fff;overflow:hidden;color:inherit;transition:box-shadow .15s,border-color .15s}
  .prod-card:hover{border-color:#b9c8e0;box-shadow:0 8px 22px rgba(22,41,74,.08);text-decoration:none}
  .prod-thumb{height:158px;background:#f7f9fc;display:flex;align-items:center;justify-content:center;overflow:hidden}
  .prod-thumb img{width:100%;height:100%;object-fit:contain;padding:10px}
  .prod-noimg{color:#c3cbd8;font-size:13px;letter-spacing:1px}

  /* ---------- 解决方案：左侧选方案，右侧看正文 ---------- */
  .sol-lead{margin:0 0 18px;font-size:14.5px;line-height:1.8;color:#5c6678}
  .sol-cover{margin:0 0 22px;border-radius:10px;overflow:hidden;background:#f7f9fc;border:1px solid #eef1f6}
  .sol-cover img{display:block;width:100%;height:auto;max-height:380px;object-fit:cover}

  /* ---------- 资料下载：文件列表 ---------- */
  .dl-list{list-style:none;margin:0;padding:0;border-top:1px solid #eef1f6}
  .dl-item{
    display:flex;align-items:center;gap:16px;padding:16px 4px;
    border-bottom:1px solid #eef1f6;transition:background .15s;
  }
  .dl-item:hover{background:#f9fbfe}
  .dl-ext{
    flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
    width:52px;height:52px;border-radius:8px;font-size:11.5px;font-weight:700;letter-spacing:.5px;
    background:#eef3fb;color:#41506b;border:1px solid #dfe7f3;
  }
  /* 按类型上色，扫一眼就能分辨 */
  .dl-ext-pdf{background:#fdecef;color:#b3261e;border-color:#f6ccd2}
  .dl-ext-rar,.dl-ext-zip{background:#fff5e6;color:#a5620a;border-color:#f7dfb8}
  .dl-ext-pptx,.dl-ext-ppt{background:#fff0e8;color:#c2410c;border-color:#f8d5c2}
  .dl-ext-doc,.dl-ext-docx{background:#eaf2fe;color:#1d4ed8;border-color:#cfdffb}
  .dl-ext-xls,.dl-ext-xlsx{background:#eaf7ee;color:#1e7b34;border-color:#cdebd6}
  .dl-body{min-width:0;flex:1}
  .dl-body h3{margin:0;font-size:14.5px;line-height:1.55;color:#16294a;font-weight:600;word-break:break-word}
  .dl-desc{margin:4px 0 0;font-size:12.5px;line-height:1.6;color:#8a94a6}
  .dl-btn{
    flex:0 0 auto;padding:8px 20px;border-radius:6px;border:1px solid #1F3864;
    background:#1F3864;color:#fff;font-size:13px;font-weight:600;white-space:nowrap;transition:.15s;
  }
  .dl-btn:hover{background:#17294a;border-color:#17294a;color:#fff;text-decoration:none}
  .dl-btn-off{background:#f2f4f8;border-color:#e3e8f0;color:#a3adbd;cursor:not-allowed}
  .dl-btn-off:hover{background:#f2f4f8;border-color:#e3e8f0;color:#a3adbd}
  @media (max-width:620px){
    .dl-item{gap:12px;padding:13px 2px}
    .dl-ext{width:44px;height:44px;font-size:10.5px}
    .dl-body h3{font-size:13.5px}
    .dl-btn{padding:7px 14px;font-size:12.5px}
  }
  /* 非图片附件（.rar/.zip 等）在列表里的类型标识 */
  .file-badge{display:inline-block;margin-top:4px;padding:3px 9px;border-radius:4px;
    background:#eef2f8;color:#5c6678;font-size:11.5px;font-weight:600;letter-spacing:.5px}
  .prod-info{padding:12px 14px 16px}
  .prod-info h3{margin:0;font-size:14px;line-height:1.5;color:#16294a;font-weight:600}
  .prod-info .meta{margin:5px 0 0;color:#8a94a6;font-size:12.5px;line-height:1.5}
  @media (max-width:860px){
    .prod-layout{grid-template-columns:1fr;gap:16px}
    .prod-side{position:static}
  }
  /* ---- chip search ---- */
  .chip-search{display:flex;gap:10px;margin:0 0 20px;max-width:620px}
  .chip-search input{flex:1;padding:11px 14px;border:1px solid #ccd;border-radius:6px;font-size:15px}
  .chip-search input:focus{outline:none;border-color:#1F3864;box-shadow:0 0 0 3px rgba(31,56,100,.08)}
  .chip-search button{padding:11px 24px;background:#1F3864;color:#fff;border:0;border-radius:6px;font-size:15px;cursor:pointer}
  .chip-search button:hover{background:#16294a}
  .chip-hint{color:#666;background:#f7f8fa;border:1px solid #eef0f3;border-radius:6px;padding:14px 16px}
  .chip-error{color:#b00020;background:#fdecef;border:1px solid #f5c6cd;border-radius:6px;padding:12px 16px}
  .chip-summary{color:#444;font-size:14px;margin:0 0 14px}
  .chip-vendors{margin-top:14px;line-height:2.2}
  .chip-vendors-label{color:#666;font-size:14px}
  .chip-vendors a{display:inline-block;margin:0 8px 8px 0;padding:5px 12px;border:1px solid #e2e5ea;border-radius:14px;font-size:13px;color:#333}
  .chip-vendors a:hover{border-color:#1F3864;color:#1F3864;text-decoration:none}
  .chip-count{color:#999;font-size:11px;margin-left:6px}
  table.chip-table{width:100%;border-collapse:collapse;font-size:14px}
  table.chip-table th{text-align:left;background:#f5f7fa;border-bottom:2px solid #e5e8ee;padding:10px 12px;font-weight:600;color:#334}
  table.chip-table td{border-bottom:1px solid #eef0f3;padding:10px 12px;vertical-align:top}
  table.chip-table tr:hover td{background:#fafbfd}
  .chip-model{font-family:Consolas,Menlo,monospace;font-size:13.5px;color:#16294a;font-weight:600}
  .chip-tag{display:inline-block;padding:2px 9px;margin:0 6px 4px 0;background:#eef3fb;border:1px solid #d8e2f3;border-radius:4px;font-size:12.5px;color:#1F3864}
  .chip-none{color:#bbb}
  /* 没有匹配到烧录器规则时，引导用户找业务员确认，而不是留个空白 */
  .chip-ask{
    display:inline-flex;align-items:center;gap:5px;
    padding:2px 10px;border-radius:4px;
    background:#fff7e6;border:1px solid #f0d9a8;color:#8a6100;
    font-size:12.5px;white-space:nowrap;
  }