:root{
    --blue-600:#1E6FFF; --blue-500:#3D8BFF; --blue-400:#4DA3FF; --blue-300:#7DD3FC;
    --blue-100:#E8F1FF; --blue-50:#F4F8FF;
    --navy:#071B3A; --navy-2:#0D2B5C;
    --ink-900:#0B1B33; --ink-600:#3D4E6B; --ink-400:#7C8BA5;
    --line:#E3ECFB;
    --grad:linear-gradient(120deg,#1E6FFF 0%,#4DA3FF 100%);
    --grad-soft:linear-gradient(180deg,#FFFFFF,#F4F8FF);
    --shadow-card:0 14px 44px rgba(30,111,255,.10);
    --shadow-btn:0 10px 26px rgba(30,111,255,.32);
    --radius-lg:20px; --radius-md:14px; --radius-sm:10px;
    --accent:#FF7A1A; --accent-soft:#FFF2E6;
  }
  *{margin:0;padding:0;box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{font-family:"PingFang SC","Microsoft YaHei","Segoe UI",-apple-system,sans-serif;background:#FFFFFF;color:var(--ink-900);-webkit-font-smoothing:antialiased;overflow-x:hidden}
  body.lock{overflow:hidden}
  a{text-decoration:none;color:inherit}
  button{font-family:inherit;cursor:pointer;border:none;background:none}
  ::selection{background:rgba(30,111,255,.16)}
  .wrap{max-width:1180px;margin:0 auto;padding:0 40px}
  .section{padding:96px 0}
  .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:3px;color:var(--blue-600);margin-bottom:16px}
  .eyebrow::before{content:"";width:22px;height:2px;background:var(--grad);border-radius:2px}
  .section-title{font-size:32px;font-weight:800;line-height:1.35;letter-spacing:.5px}
  .section-sub{margin-top:12px;font-size:15px;color:var(--ink-600);line-height:1.8}
  .reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
  .reveal.in{opacity:1;transform:none}
  .dot{font-size:1.18em;font-weight:800;color:var(--blue-600);margin:0 3px;vertical-align:middle}

  /* ---------- 导航（桌面端抽屉式） ---------- */
  .nav{position:sticky;top:0;z-index:60;display:flex;align-items:center;justify-content:space-between;padding:14px 40px;background:rgba(255,255,255,.85);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid rgba(30,111,255,.08)}
  .nav-logo{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;letter-spacing:.5px}
  .nav-logo .mark{width:34px;height:34px;border-radius:10px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:800;font-style:italic;box-shadow:0 6px 16px rgba(30,111,255,.35)}
  .nav-logo b{color:var(--ink-900)}
  .nav-logo i{font-style:normal;color:var(--blue-600)}
  .nav-links{display:flex;gap:4px}
  .nav-item{position:relative}
  .nav-item::after{content:"";position:absolute;top:100%;left:0;right:0;height:28px} /* hover 桥接，避免抽屉断触 */
  .nav-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--ink-600);padding:9px 14px;border-radius:10px;transition:color .2s,background .2s}
  .nav-link .chev{font-size:10px;color:var(--ink-400);transition:transform .25s}
  .nav-item:hover .nav-link,.nav-link.active{color:var(--blue-600)}
  .nav-item:hover .nav-link{background:var(--blue-50)}
  .nav-item:hover .nav-link .chev{transform:rotate(180deg)}
  .nav-cta{background:var(--grad);color:#fff;font-size:14px;font-weight:600;padding:10px 22px;border-radius:999px;box-shadow:var(--shadow-btn);transition:transform .2s,box-shadow .2s}
  .nav-cta:hover{transform:translateY(-1px);box-shadow:0 14px 32px rgba(30,111,255,.42)}
  .nav-burger{display:none;width:42px;height:42px;border-radius:11px;border:1px solid var(--line);background:#fff;flex-direction:column;align-items:center;justify-content:center}
  .nav-burger span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;margin:2px 0}

  /* 抽屉 */
  .drawer{
    position:absolute;top:calc(100% + 12px);left:50%;
    transform:translateX(-50%) translateY(14px);
    opacity:0;visibility:hidden;pointer-events:none;
    background:#fff;border:1px solid var(--line);border-radius:18px;
    box-shadow:0 30px 70px rgba(30,111,255,.16),0 4px 18px rgba(7,27,58,.06);
    padding:18px;
    transition:opacity .28s ease,transform .28s ease,visibility .28s;
  }
  .drawer::before{content:"";position:absolute;top:-7px;left:50%;transform:translateX(-50%) rotate(45deg);width:14px;height:14px;background:#fff;border-left:1px solid var(--line);border-top:1px solid var(--line);border-radius:3px}
  .nav-item:hover .drawer,.nav-item:focus-within .drawer{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}
    .drawer-mid{width:420px}
  .drawer-sm{width:300px}
  .drawer-grid{display:grid;gap:10px}
  .drawer-grid.two{grid-template-columns:1fr 1fr}
  .dc{display:flex;align-items:center;gap:12px;padding:14px;border-radius:14px;border:1px solid transparent;transition:all .2s}
  .dc:hover{background:var(--blue-50);border-color:var(--blue-100)}
  .dc-ico{flex:none;width:40px;height:40px;border-radius:11px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;box-shadow:0 6px 14px rgba(30,111,255,.28)}
  .dc-main{display:flex;flex-direction:column;gap:3px;min-width:0}
  .dc-name{font-size:14px;font-weight:700;color:var(--ink-900);line-height:1.4}
  .dc-desc{font-size:12px;color:var(--ink-400)}
  .drawer-title{font-size:12px;font-weight:700;color:var(--ink-400);letter-spacing:2px;margin:6px 4px 10px}
  .drawer-links{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-bottom:8px}
  .dl{display:flex;align-items:center;justify-content:space-between;padding:11px 14px;border-radius:11px;font-size:13.5px;color:var(--ink-600);transition:all .2s}
  .dl:hover{background:var(--blue-50);color:var(--blue-600)}
  .dl .arr{opacity:0;transform:translateX(-4px);transition:all .2s}
  .dl:hover .arr{opacity:1;transform:none}
  .drawer-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:6px}
  .dchip{padding:8px 16px;border-radius:999px;background:var(--blue-50);border:1px solid var(--blue-100);color:var(--blue-600);font-size:13px;font-weight:600;transition:all .2s}
  .dchip:hover{background:var(--grad);color:#fff;border-color:transparent}
  .drawer-note{font-size:12px;color:var(--ink-400);margin:2px 4px 8px}
  .drawer-foot{border-top:1px dashed var(--line);padding:12px 4px 2px;display:flex;justify-content:space-between;align-items:center;gap:10px}
  .drawer-foot a{font-size:13px;font-weight:700;color:var(--blue-600)}
  .drawer-foot a:hover{color:var(--blue-400)}
  .drawer-foot span{font-size:12px;color:var(--ink-400)}

  /* 大抽屉（Mega Menu）：全宽通栏，相对视口居中 */
  .mega{
    position:fixed;top:76px;left:50%;
    width:min(1120px,calc(100vw - 80px));
    transform:translateX(-50%) translateY(16px);
    opacity:0;visibility:hidden;pointer-events:none;
    background:#fff;border:1px solid var(--line);border-radius:20px;
    box-shadow:0 30px 80px rgba(30,111,255,.18),0 6px 24px rgba(7,27,58,.08);
    padding:22px;
    transition:opacity .28s ease,transform .28s ease,visibility .28s;
  }
  .mega::before{content:"";position:absolute;top:-7px;left:50%;transform:translateX(-50%) rotate(45deg);width:14px;height:14px;background:#fff;border-left:1px solid var(--line);border-top:1px solid var(--line);border-radius:3px}
  .nav-item:hover .mega,.nav-item:focus-within .mega{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}
  .mega-head{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:4px 6px 16px;border-bottom:1px solid var(--line);margin-bottom:16px}
  .mega-head h4{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--ink-900);white-space:nowrap}
  .hd-ic{width:36px;height:36px;border-radius:10px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 16px rgba(30,111,255,.3)}
  .hd-ic svg{width:18px;height:18px}
  .mega-head .hd-txt{text-align:right}
  .mega-head .hd-txt p{font-size:14px;color:var(--ink-600)}
  .mega-head .hd-txt p b{color:var(--blue-600)}
  .mega-head .hd-sub{margin-top:4px;font-size:12.5px;color:var(--ink-400)}
  .mega-cols{display:grid;grid-template-columns:1fr 1fr;gap:18px}
  .mega-col{background:var(--blue-50);border:1px solid var(--line);border-radius:16px;padding:18px}
  .mega-col-head{display:flex;align-items:center;gap:12px;padding:2px 4px 14px}
  .mc-ico{flex:none;width:40px;height:40px;border-radius:12px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:800;box-shadow:0 8px 18px rgba(30,111,255,.3)}
  .mega-col-head .mc-name{font-size:15.5px;font-weight:800;color:var(--ink-900)}
  .mega-col-head .mc-one{margin-top:3px;font-size:12px;color:var(--blue-600);line-height:1.5}
  .mega-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .mega-card{display:flex;flex-direction:column;gap:6px;background:#fff;border:1px solid var(--line);border-radius:13px;padding:14px;transition:all .22s}
  .mega-card:hover{transform:translateY(-3px);border-color:rgba(30,111,255,.35);box-shadow:0 10px 26px rgba(30,111,255,.12)}
  .mega-card .mc-top{display:flex;align-items:center;gap:8px}
  .mega-card .mi{flex:none;width:30px;height:30px;border-radius:9px;background:var(--blue-100);color:var(--blue-600);display:flex;align-items:center;justify-content:center}
  .mega-card .mi svg{width:16px;height:16px}
  .mega-card .mc-name{font-size:13.5px;font-weight:800;color:var(--ink-900)}
  .mega-card .mc-one{font-size:12px;font-weight:600;color:var(--blue-600);line-height:1.5}
  .mega-card .mc-desc{font-size:12px;color:var(--ink-400);line-height:1.65}
  .mega-card .mc-tags{display:flex;flex-wrap:wrap;gap:5px;margin-top:2px}
  .mega-card .mc-tags span{font-size:11px;color:var(--ink-600);background:var(--blue-50);border:1px solid var(--line);padding:2px 8px;border-radius:999px}
  .mega-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:16px;padding:14px 16px;background:linear-gradient(120deg,#F4F8FF,#FFFFFF);border:1px dashed #C9D8F2;border-radius:14px}
  .mf-info{display:flex;align-items:center;gap:10px;min-width:0}
  .mf-info .mi{flex:none;width:32px;height:32px;border-radius:9px;background:var(--blue-100);color:var(--blue-600);display:flex;align-items:center;justify-content:center}
  .mf-info .mi svg{width:16px;height:16px}
  .mf-name{display:block;font-size:13.5px;font-weight:800;color:var(--ink-900)}
  .mf-desc{display:block;margin-top:2px;font-size:12px;color:var(--ink-400);line-height:1.5}
  .mf-link{flex:none;font-size:13px;font-weight:700;color:var(--blue-600);white-space:nowrap}
  .mf-link:hover{color:var(--blue-400)}
  /* 解决方案大抽屉：行业卡片风格（与产品中心分区布局区分） */
    /* solution mega drawer: general + industry zones (full-width like product center) */
  .sol-zone{border:1px solid var(--line);border-radius:16px;padding:16px 18px 18px;margin-bottom:14px}
  .sol-zone:last-of-type{margin-bottom:0}
  .sol-zone-head{display:flex;align-items:center;gap:9px;padding:0 2px 12px}
  .sol-zone-head .sz-ic{flex:none;width:28px;height:28px;border-radius:9px;background:linear-gradient(135deg,#EAF2FF,#F4F8FF);border:1px solid #DCE9FF;color:var(--blue-600);display:flex;align-items:center;justify-content:center}
  .sol-zone-head .sz-ic svg{width:15px;height:15px}
  .sol-zone-head .sz-name{font-size:14.5px;font-weight:800;color:var(--ink-900)}
  .sol-zone-head .sz-sub{font-size:12px;color:var(--ink-400);margin-left:4px;white-space:nowrap}
  .sol-zone-head .sz-line{flex:1;min-width:20px;height:1px;background:var(--line)}
  .sol-zone-head .sz-note{flex:none;font-size:11.5px;font-weight:700;color:var(--blue-500)}
  /* general zone: 4 solution cards */
  .sol-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
  .sol-card{position:relative;overflow:hidden;display:flex;flex-direction:column;gap:7px;background:#fff;border:1px solid var(--line);border-radius:13px;padding:16px 15px 14px;transition:all .22s}
  .sol-card::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;background:linear-gradient(180deg,#3A86FF,#7F5AFF);opacity:0;transition:opacity .22s}
  .sol-card:hover{transform:translateY(-3px);border-color:rgba(30,111,255,.35);box-shadow:0 10px 26px rgba(30,111,255,.12)}
  .sol-card:hover::before{opacity:1}
  .sol-card .sc-top{display:flex;align-items:center;gap:9px}
  .sol-card .mi{flex:none;width:32px;height:32px;border-radius:10px;background:var(--blue-100);color:var(--blue-600);display:flex;align-items:center;justify-content:center}
  .sol-card .mi svg{width:16px;height:16px}
  .sol-card .sc-name{font-size:14px;font-weight:800;color:var(--ink-900)}
  .sol-card .sc-one{font-size:12px;font-weight:600;color:var(--blue-600);line-height:1.5}
  .sol-card .sc-desc{font-size:11.5px;color:var(--ink-400);line-height:1.65}
  .sol-card .sc-tags{display:flex;flex-wrap:wrap;gap:5px;margin-top:auto;padding-top:4px}
  .sol-card .sc-tags span{font-size:10.5px;color:var(--ink-600);background:var(--blue-50);border:1px solid var(--line);padding:2px 7px;border-radius:999px}
  /* industry zone: 6 compact cards */
  .sol-industry{display:grid;grid-template-columns:repeat(6,1fr);gap:10px}
  .ind-card{position:relative;overflow:hidden;display:flex;flex-direction:column;gap:7px;background:#fff;border:1px solid var(--line);border-radius:13px;padding:14px 13px;transition:all .22s}
  .ind-card::after{content:"";position:absolute;top:-30px;right:-30px;width:80px;height:80px;border-radius:50%;background:radial-gradient(circle,rgba(77,163,255,.15),transparent 65%)}
  .ind-card:hover{transform:translateY(-3px);border-color:rgba(30,111,255,.35);box-shadow:0 10px 26px rgba(30,111,255,.12)}
  .ind-card .mi{flex:none;width:30px;height:30px;border-radius:9px;background:var(--blue-100);color:var(--blue-600);display:flex;align-items:center;justify-content:center}
  .ind-card .mi svg{width:15px;height:15px}
  .ind-name{font-size:13.5px;font-weight:800;color:var(--ink-900)}
  .ind-one{font-size:11.5px;font-weight:600;color:var(--blue-600);line-height:1.5}
  .ind-tags{display:flex;flex-wrap:wrap;gap:5px}
  .ind-tags span{font-size:10.5px;color:var(--ink-600);background:var(--blue-50);border:1px solid var(--line);padding:2px 7px;border-radius:999px}
  /* more solutions banner */
  .sol-more{display:flex;align-items:center;gap:12px;margin-top:14px;padding:13px 18px;border:1px dashed #C9D8F2;border-radius:13px;background:linear-gradient(120deg,rgba(30,111,255,.05),#fff 55%);transition:all .22s}
  .sol-more:hover{border-color:rgba(30,111,255,.45);background:rgba(30,111,255,.07)}
  .sol-more .mi{flex:none;width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,#3A86FF,#7F5AFF);color:#fff;display:flex;align-items:center;justify-content:center}
  .sol-more .mi svg{width:16px;height:16px}
  .sol-more .sm-name{font-size:14px;font-weight:800;color:var(--ink-900)}
  .sol-more .sm-one{font-size:12px;color:var(--ink-400);margin-top:2px}
  .sol-more .sm-arr{flex:none;margin-left:auto;font-size:12.5px;font-weight:700;color:var(--blue-600)}
  @media (max-width:1280px){
    .sol-grid{grid-template-columns:repeat(2,1fr)}
    .sol-industry{grid-template-columns:repeat(3,1fr)}
  }

  /* 产品中心：左右铺满版（产品类别上下分区，入口横向排列） */
  .mega-full{left:50%;width:min(calc(100vw - 96px),1400px);transform:translateX(-50%) translateY(16px);border-radius:0 0 22px 22px}
  .mega-full::before{display:none}
  .nav-item:hover .mega-full,.nav-item:focus-within .mega-full{transform:translateX(-50%) translateY(0)}
  .mega-inner{max-width:1180px;margin:0 auto;padding:0 40px}
  .mega-full .mega-cols{grid-template-columns:1fr;gap:14px}
  .mega-full .mega-col{padding:20px}
  .mega-full .mega-grid.cols-3{grid-template-columns:repeat(3,1fr)}
  .mega-full .mega-grid.cols-4{grid-template-columns:repeat(4,1fr)}
  .mega-full .mega-inner{max-width:1280px}
  .mega-full .mega-card{padding:16px}
  /* 点缀色（极个别部位） */
  .mega-card.accent .mi{background:var(--accent-soft);color:var(--accent)}
  .mega-card.accent .mc-one{color:var(--accent)}
  .stat .num.accent{background:linear-gradient(115deg,#FF7A1A,#FFB25E);-webkit-background-clip:text;background-clip:text;color:transparent}
  .chip-2 .ic{background:var(--accent-soft);color:var(--accent)}
  .ai-spark{position:absolute;top:-7px;right:-24px;width:20px;height:20px;animation:sparkTwinkle 2.6s ease-in-out infinite}
  @keyframes sparkTwinkle{0%,100%{opacity:1;transform:scale(1) rotate(0deg)}50%{opacity:.55;transform:scale(.82) rotate(14deg)}}

  /* 移动端菜单（全屏下拉抽屉） */
  .mobile-menu{position:fixed;inset:0;z-index:70;background:rgba(7,27,58,.38);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s}
  .mobile-menu .mm-panel{position:absolute;top:0;left:0;right:0;max-height:92vh;overflow:auto;background:#fff;border-radius:0 0 24px 24px;padding:18px 22px 28px;transform:translateY(-100%);transition:transform .35s cubic-bezier(.2,.8,.2,1);box-shadow:0 24px 60px rgba(7,27,58,.25)}
  .mobile-menu.open{opacity:1;visibility:visible}
  .mobile-menu.open .mm-panel{transform:none}
  .mm-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:8px}
  .mm-head strong{font-size:16px;font-weight:800;color:var(--ink-900)}
  .mm-close{width:34px;height:34px;border-radius:10px;background:var(--blue-50);color:var(--blue-600);font-size:15px}
  .mm-link{display:block;padding:13px 6px;font-size:15px;font-weight:600;color:var(--ink-900);border-bottom:1px solid var(--line);border-radius:8px;transition:all .2s}
  .mm-link:hover{color:var(--blue-600);background:var(--blue-50)}
  .mm-group{border-bottom:1px solid var(--line)}
  .mm-head-btn{display:flex;align-items:center;justify-content:space-between;width:100%;padding:13px 6px;font-size:15px;font-weight:600;color:var(--ink-900);border-radius:8px}
  .mm-head-btn .chev{font-size:11px;color:var(--ink-400);transition:transform .25s}
  .mm-group.open .mm-head-btn .chev{transform:rotate(180deg)}
  .mm-sub{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}
  .mm-sub>div{overflow:hidden}
  .mm-group.open .mm-sub{grid-template-rows:1fr}
  .mm-sub a{display:block;padding:10px 6px 10px 18px;font-size:13.5px;color:var(--ink-600);transition:all .2s}
  .mm-sub a:hover{color:var(--blue-600);background:var(--blue-50);border-radius:8px}
  .mm-cta{display:block;margin-top:18px;text-align:center;background:var(--grad);color:#fff;font-weight:700;font-size:15px;padding:14px;border-radius:999px;box-shadow:var(--shadow-btn)}

  /* ---------- Hero（v1.1 重构：无副标题，AI 大脑强化） ---------- */
  .hero{position:relative;overflow:hidden;padding:84px 0 132px;background:radial-gradient(900px 480px at 88% -10%,rgba(77,163,255,.28),transparent 62%),radial-gradient(700px 420px at -5% 30%,rgba(30,111,255,.14),transparent 60%),linear-gradient(180deg,#EBF3FF 0%,#F6FAFF 58%,#FFFFFF 100%)}
  .hero-grid{position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(30,111,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(30,111,255,.06) 1px,transparent 1px);background-size:46px 46px;-webkit-mask-image:radial-gradient(72% 62% at 50% 28%,#000 30%,transparent 100%);mask-image:radial-gradient(72% 62% at 50% 28%,#000 30%,transparent 100%)}
  .orb{position:absolute;border-radius:50%;pointer-events:none;filter:blur(2px)}
  .orb-1{width:420px;height:420px;top:-160px;right:-100px;background:radial-gradient(circle,rgba(77,163,255,.35),transparent 65%)}
  .orb-2{width:300px;height:300px;bottom:-120px;left:-80px;background:radial-gradient(circle,rgba(30,111,255,.16),transparent 65%)}
  .hero-inner{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}
  .hero-copy{position:relative}
  .hero-wm{position:absolute;top:-52px;right:-16px;font-size:clamp(120px,13vw,185px);font-weight:800;line-height:1;letter-spacing:-8px;color:rgba(30,111,255,.055);user-select:none;pointer-events:none;animation:wmFloat 6s ease-in-out infinite}
  @keyframes wmFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
  .hero-tag{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;background:rgba(255,255,255,.75);border:1px solid rgba(30,111,255,.18);color:var(--blue-600);font-size:13px;font-weight:600;letter-spacing:1px;box-shadow:0 6px 18px rgba(30,111,255,.08);margin-bottom:28px;animation:fadeUp .8s ease both}
  .hero-tag::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--blue-400);box-shadow:0 0 0 4px rgba(77,163,255,.18)}
  .hero h1{position:relative;z-index:1;font-size:clamp(31px,3.9vw,46px);line-height:1.42;font-weight:800;letter-spacing:1px;animation:fadeUp .9s cubic-bezier(.2,.7,.3,1) .06s both}
  .h1-line2{white-space:nowrap}
  .ans{display:inline-block;margin-left:.34em}
  .ans i{font-style:normal;display:inline-block;color:transparent;background:linear-gradient(115deg,#FF4D00 0%,#FF9F1C 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-stroke:1px rgba(255,94,26,.85);filter:drop-shadow(0 5px 18px rgba(255,94,26,.5));animation:ansBounce 1.4s ease-in-out infinite}
  .ans i:nth-child(2){animation-delay:.13s}
  @keyframes ansBounce{0%,100%{transform:translateY(0) scale(1)}28%{transform:translateY(-14px) scale(1.12)}60%{transform:translateY(0) scale(1)}}
  .hero h1 .ai-word{
    position:relative;display:inline-block;
    padding:.08em .3em .1em;border-radius:.32em;
    background:linear-gradient(115deg,#1E6FFF 0%,#3D8BFF 55%,#4DA3FF 100%);
    color:#fff;font-size:1.14em;line-height:1.2;letter-spacing:.03em;vertical-align:-.06em;
    box-shadow:0 10px 30px rgba(30,111,255,.45),inset 0 1px 0 rgba(255,255,255,.35);
    animation:aiPulse 3s ease-in-out infinite;
  }
  @keyframes aiPulse{0%,100%{box-shadow:0 10px 30px rgba(30,111,255,.45),inset 0 1px 0 rgba(255,255,255,.35)}50%{box-shadow:0 10px 46px rgba(77,163,255,.75),inset 0 1px 0 rgba(255,255,255,.35)}}
  .hero h1 .ai-word::after{content:"";position:absolute;inset:-3px;border-radius:inherit;border:1.5px solid rgba(125,211,252,.6);animation:ringPulse 3s ease-in-out infinite;pointer-events:none}
  @keyframes ringPulse{0%,100%{opacity:.45;transform:scale(1)}50%{opacity:1;transform:scale(1.07)}}
  @keyframes fadeUp{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:none}}
  .hero-btns{margin-top:40px;display:flex;gap:14px;align-items:center;animation:fadeUp .8s ease .18s both}
  .btn-primary,.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 32px;border-radius:999px;font-size:15px;font-weight:600;transition:transform .2s,box-shadow .2s,background .2s}
  .btn-primary{background:var(--grad);color:#fff;box-shadow:var(--shadow-btn)}
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 36px rgba(30,111,255,.44)}
  .btn-ghost{background:#fff;color:var(--blue-600);border:1px solid #C3D8FF}
  .btn-ghost:hover{background:var(--blue-50);transform:translateY(-2px)}
  .hero-aux{margin-top:22px;font-size:13px;color:var(--ink-400);display:flex;align-items:center;gap:8px;animation:fadeUp .8s ease .28s both}
  .hero-aux svg{flex:none}

  /* Hero 数据面板（纯 CSS 绘制） */
  .hero-visual{position:relative}
  .chat-panel{background:rgba(255,255,255,.9);border:1px solid rgba(30,111,255,.16);border-radius:22px;padding:20px;box-shadow:0 30px 70px rgba(30,111,255,.16);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
  .chat-head{display:flex;align-items:center;gap:10px;padding-bottom:14px;border-bottom:1px solid var(--line)}
  .chat-avatar{width:32px;height:32px;border-radius:10px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:800}
  .chat-head .t{font-size:14px;font-weight:700}
  .chat-head .s{font-size:12px;color:var(--ink-400)}
  .chat-head .live{margin-left:auto;display:inline-flex;align-items:center;gap:6px;font-size:12px;color:#12A150}
  .chat-head .live::before{content:"";width:7px;height:7px;border-radius:50%;background:#12A150;box-shadow:0 0 0 4px rgba(18,161,80,.14)}
  .chat-body{padding-top:16px;display:flex;flex-direction:column;gap:14px}
  .msg{max-width:88%;padding:12px 15px;font-size:13.5px;line-height:1.75}
  .msg.user{align-self:flex-end;background:var(--grad);color:#fff;border-radius:14px 14px 4px 14px;box-shadow:0 8px 20px rgba(30,111,255,.25)}
  .msg.ai{align-self:flex-start;background:var(--blue-50);border:1px solid var(--blue-100);color:var(--ink-900);border-radius:14px 14px 14px 4px}
  .msg.ai .num{font-size:17px;font-weight:800;color:var(--blue-600)}
  .msg.ai .up{color:#12A150;font-weight:700}
  .bars{display:flex;align-items:flex-end;gap:6px;height:64px;margin:12px 0 4px}
  .bars span{flex:1;border-radius:4px 4px 2px 2px;background:linear-gradient(180deg,#7DD3FC,#1E6FFF);transform-origin:bottom;animation:grow 1s cubic-bezier(.2,.7,.3,1) both}
  @keyframes grow{from{transform:scaleY(0)}to{transform:scaleY(1)}}
  .ai-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
  .ai-chips span{font-size:12px;color:var(--blue-600);background:#fff;border:1px solid rgba(30,111,255,.18);padding:4px 10px;border-radius:999px}
  .float-chip{position:absolute;display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.92);border:1px solid rgba(30,111,255,.16);border-radius:14px;padding:10px 14px;font-size:12.5px;font-weight:600;color:var(--ink-900);box-shadow:0 14px 34px rgba(30,111,255,.16);animation:float 5s ease-in-out infinite}
  .float-chip .ic{width:26px;height:26px;border-radius:8px;background:var(--blue-100);color:var(--blue-600);display:flex;align-items:center;justify-content:center;font-size:13px}
  .float-chip small{display:block;font-size:11px;color:var(--ink-400);font-weight:500}
  .chip-1{top:14px;left:-34px}
  .chip-2{bottom:6px;right:-20px;animation-delay:2.4s}
  @keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-9px)}}

  /* ---------- 数据条 ---------- */
  .stats{margin:-64px 0 0;position:relative;z-index:5}
  .stats-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:34px 40px 30px}
  .stats-head{display:flex;align-items:center;gap:14px;justify-content:center;margin-bottom:6px}
  .stats-head .line{width:26px;height:2px;background:var(--grad);border-radius:2px}
  .stats-head h3{font-size:17px;font-weight:800;letter-spacing:2px}
  .stats-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:24px}
  .stat{padding:18px 10px;text-align:center;border-radius:var(--radius-md);transition:background .25s,transform .25s}
  .stat:hover{background:var(--blue-50);transform:translateY(-3px)}
  .stat+.stat{border-left:1px dashed var(--line)}
  .stat .num{font-size:clamp(28px,2.6vw,36px);font-weight:800;letter-spacing:.5px;background:linear-gradient(115deg,#1E6FFF,#4DA3FF);-webkit-background-clip:text;background-clip:text;color:transparent}
  .stat .label{font-size:13px;color:var(--ink-600);margin-top:8px;line-height:1.6}

  /* ---------- 双产品 ---------- */
  .products .head,.industries .head,.cases .head,.loop .head{max-width:680px;margin:0 auto;text-align:center}
  .products .eyebrow,.industries .eyebrow,.cases .eyebrow{justify-content:center}
  .products .eyebrow::before,.industries .eyebrow::before,.cases .eyebrow::before{display:none}
  .products .eyebrow::after,.industries .eyebrow::after,.cases .eyebrow::after{content:"";width:22px;height:2px;background:var(--grad);border-radius:2px}
  .pro-cards{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:56px}
  .pro-card{position:relative;overflow:hidden;display:flex;flex-direction:column;background:var(--grad-soft);border:1px solid var(--line);border-radius:var(--radius-lg);padding:42px 40px 38px;transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease}
  .pro-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-card);border-color:rgba(30,111,255,.35)}
  .pro-card::after{content:"";position:absolute;top:-70px;right:-70px;width:190px;height:190px;border-radius:50%;background:radial-gradient(circle,rgba(77,163,255,.18),transparent 65%);pointer-events:none}
  .pro-index{position:absolute;top:20px;right:26px;font-size:44px;font-weight:800;line-height:1;color:rgba(30,111,255,.10);letter-spacing:-2px;user-select:none}
  .pro-ico{width:52px;height:52px;border-radius:15px;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:800;box-shadow:0 10px 24px rgba(30,111,255,.30);margin-bottom:24px}
  .pro-card h3{font-size:23px;font-weight:800;letter-spacing:.5px}
  .pro-card .one{margin-top:14px;font-size:15px;font-weight:600;color:var(--blue-600)}
  .pro-card .desc{margin-top:12px;font-size:14.5px;color:var(--ink-600);line-height:1.9}
  .pro-chips{display:flex;flex-wrap:wrap;gap:9px;margin-top:22px}
  .pro-chips span{font-size:12.5px;color:var(--ink-600);background:#fff;border:1px solid var(--line);padding:6px 13px;border-radius:999px;transition:all .2s}
  .pro-chips span:hover{border-color:var(--blue-400);color:var(--blue-600);background:var(--blue-50)}
  .pro-more{margin-top:auto;padding-top:26px;display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--blue-600)}
  .pro-more .arr{transition:transform .25s}
  .pro-card:hover .pro-more .arr{transform:translateX(5px)}
  .pro-more i{font-style:normal;font-weight:800;color:var(--blue-400)}

  /* ---------- AI+BI 协同（暗色段落） ---------- */
  .loop{position:relative;overflow:hidden;background:radial-gradient(760px 420px at 85% 0%,rgba(77,163,255,.22),transparent 60%),radial-gradient(600px 380px at 0% 100%,rgba(30,111,255,.20),transparent 60%),linear-gradient(135deg,#071B3A 0%,#0A2450 55%,#0D2B5C 100%);color:#fff}
  .loop .grid{position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(125,211,252,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(125,211,252,.05) 1px,transparent 1px);background-size:46px 46px}
  .loop .wrap{position:relative}
  .loop .eyebrow{color:var(--blue-300)}
  .loop .eyebrow::before{display:none}
  .loop .eyebrow::after{content:"";width:22px;height:2px;background:var(--grad);border-radius:2px}
  .loop .section-sub{color:rgba(255,255,255,.66)}
  .flow{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;align-items:stretch;margin-top:56px}
  .flow-node{background:rgba(255,255,255,.06);border:1px solid rgba(125,211,252,.26);border-radius:var(--radius-lg);padding:30px 28px;text-align:center;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);transition:transform .3s,background .3s,border-color .3s}
  .flow-node:hover{transform:translateY(-5px);background:rgba(255,255,255,.09);border-color:rgba(125,211,252,.5)}
  .flow-node .n-ico{width:46px;height:46px;border-radius:13px;margin:0 auto 16px;background:var(--grad);display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:800;box-shadow:0 10px 22px rgba(30,111,255,.35)}
  .flow-node .n-en{font-size:12px;font-weight:700;letter-spacing:2px;color:var(--blue-300)}
  .flow-node h4{margin-top:8px;font-size:17px;font-weight:800}
  .flow-node p{margin-top:10px;font-size:13px;color:rgba(255,255,255,.62);line-height:1.8}
  .flow-arrow{display:flex;align-items:center;justify-content:center;padding:0 8px}
  .flow-arrow svg{color:var(--blue-300);opacity:.9}
  .loop-closing{margin-top:64px;text-align:center;padding:30px 40px;border-radius:var(--radius-lg);background:rgba(255,255,255,.06);border:1px solid rgba(125,211,252,.22)}
  .loop-closing p{font-size:clamp(22px,2.6vw,30px);font-weight:800;letter-spacing:2px}
  .loop-closing p span{background:linear-gradient(115deg,#7DD3FC,#4DA3FF);-webkit-background-clip:text;background-clip:text;color:transparent}

  /* ---------- 行业方案入口 ---------- */
  .industries{background:var(--blue-50);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .ind-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:44px}
  .ind-item{position:relative;overflow:hidden;display:flex;flex-direction:column;gap:8px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 24px;transition:all .25s}
  .ind-item::after{content:"";position:absolute;top:-36px;right:-36px;width:96px;height:96px;border-radius:50%;background:radial-gradient(circle,rgba(77,163,255,.15),transparent 65%)}
  .ind-item:hover{transform:translateY(-4px);border-color:rgba(30,111,255,.35);box-shadow:var(--shadow-card)}
  .ii-ico{flex:none;width:42px;height:42px;border-radius:12px;color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 18px rgba(30,111,255,.22);transition:transform .25s}
  .ii-ico svg{width:20px;height:20px;stroke-width:1.9}
  .ii-gov{background:linear-gradient(135deg,#1E6FFF,#4DA3FF)}
  .ii-fin{background:linear-gradient(135deg,#F59E0B,#FFB25E)}
  .ii-rest{background:linear-gradient(135deg,#FF7A1A,#FFA94D)}
  .ii-med{background:linear-gradient(135deg,#0FA968,#4CD08A)}
  .ii-manu{background:linear-gradient(135deg,#7C5CFF,#A78BFF)}
  .ii-law{background:linear-gradient(135deg,#0FB5BA,#45D6D9)}
  .ind-item:hover .ii-ico{transform:scale(1.1) rotate(-5deg)}
  .ii-ico svg{width:20px;height:20px}
  .ii-name{font-size:16px;font-weight:800;color:var(--ink-900)}
  .ii-one{font-size:13px;color:var(--ink-600);line-height:1.65}
  .industries .note{margin-top:18px;font-size:13px;color:var(--ink-400);text-align:center}
  .industries .btn-wrap,.cases .btn-wrap{text-align:center;margin-top:36px}

  /* 客户案例大抽屉：代表案例精选卡 */
  .case-zone{border:1px solid var(--line);border-radius:16px;padding:14px 16px 16px;margin-bottom:12px}
  .case-zone:last-of-type{margin-bottom:0}
  .case-feat{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
  .cf-card{position:relative;overflow:hidden;display:flex;flex-direction:column;gap:7px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:15px 14px;transition:all .22s}
  .cf-card::after{content:"";position:absolute;right:-24px;top:-24px;width:66px;height:66px;border-radius:50%;background:linear-gradient(135deg,var(--blue-100),transparent 72%);opacity:.85}
  .cf-card:hover{transform:translateY(-3px);border-color:rgba(30,111,255,.4);box-shadow:0 12px 28px rgba(30,111,255,.13)}
  .cf-card .cf-tag{font-size:11px;font-weight:700;color:var(--blue-600);background:var(--blue-50);border:1px solid var(--line);align-self:flex-start;padding:3px 9px;border-radius:999px}
  .cf-card b{font-size:14px;font-weight:800;color:var(--ink-900)}
  .cf-card .cf-one{font-size:12px;font-weight:600;color:var(--blue-600);line-height:1.55}
  .cf-card .cf-tags{display:flex;flex-wrap:wrap;gap:5px;margin-top:auto;padding-top:2px}
  .cf-card .cf-tags span{font-size:10.5px;color:var(--ink-600);background:var(--blue-50);border:1px solid var(--line);padding:2px 7px;border-radius:999px}
  .cf-arr{position:absolute;right:14px;bottom:13px;font-size:14px;font-weight:800;color:var(--blue-300);opacity:0;transform:translateX(-5px);transition:all .22s}
  .cf-card:hover .cf-arr{opacity:1;transform:none}

  /* ---------- 客户案例 ---------- */
  .case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:52px}
  .case-card{border:1.5px dashed #C9D8F2;border-radius:var(--radius-lg);padding:44px 30px;text-align:center;background:#FBFDFF;transition:all .25s}
  .case-card:hover{background:#fff;border-color:var(--blue-400);transform:translateY(-4px);box-shadow:var(--shadow-card)}
  .case-card .q-ic{width:52px;height:52px;margin:0 auto 18px;border-radius:50%;background:var(--blue-100);color:var(--blue-600);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:800}
  .case-card h4{font-size:17px;font-weight:800}
  .case-card .q-tags{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:16px}
  .case-card .q-tags span{font-size:11.5px;font-weight:700;color:var(--ink-900);background:var(--blue-50);border:1px solid var(--line);padding:4px 12px;border-radius:999px}
  .case-card .q-more{display:inline-block;margin-top:14px;font-size:12.5px;font-weight:700;color:var(--blue-600)}
  .case-card:hover .q-more{color:var(--blue-400)}
  .case-card .pill{display:inline-block;margin-top:12px;font-size:12px;color:var(--ink-400);background:var(--blue-50);border:1px solid var(--line);padding:4px 12px;border-radius:999px}
  .case-card .pill b{color:var(--blue-600)}

  /* ---------- CTA ---------- */
  .cta{padding:40px 0 96px}
  .cta-panel{position:relative;overflow:hidden;border-radius:26px;padding:84px 60px;text-align:center;color:#fff;background:radial-gradient(600px 300px at 85% -20%,rgba(125,211,252,.4),transparent 60%),radial-gradient(500px 280px at 0% 120%,rgba(30,111,255,.5),transparent 60%),linear-gradient(120deg,#1E6FFF 0%,#3D8BFF 60%,#4DA3FF 100%);box-shadow:0 30px 70px rgba(30,111,255,.35)}
  .cta-panel .grid{position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.08) 1px,transparent 1px);background-size:42px 42px;-webkit-mask-image:radial-gradient(70% 90% at 50% 0%,#000 20%,transparent 100%);mask-image:radial-gradient(70% 90% at 50% 0%,#000 20%,transparent 100%)}
  .cta-panel>*{position:relative}
  .cta-panel h2{font-size:clamp(28px,3.4vw,38px);font-weight:800;letter-spacing:1px}
  .cta-panel p{margin:18px auto 34px;max-width:none;font-size:15px;line-height:1.9;color:rgba(255,255,255,.88);white-space:nowrap}
  .cta-line2{white-space:nowrap}
  .cta-btns{display:flex;gap:14px;justify-content:center}
  .btn-white{background:#fff;color:var(--blue-600);padding:14px 32px;border-radius:999px;font-size:15px;font-weight:700;box-shadow:0 12px 30px rgba(7,27,58,.22);transition:transform .2s,box-shadow .2s}
  .btn-white:hover{transform:translateY(-2px);box-shadow:0 16px 38px rgba(7,27,58,.3)}
  .btn-ghost-light{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.55);padding:14px 32px;border-radius:999px;font-size:15px;font-weight:600;transition:all .2s}
  .btn-ghost-light:hover{background:rgba(255,255,255,.22);transform:translateY(-2px)}

  /* ---------- 页脚 ---------- */
  .footer{background:radial-gradient(900px 280px at 50% 0%,rgba(30,111,255,.16),transparent 65%),var(--navy);color:#fff;padding:72px 0 0}
.footer-grid{display:flex;flex-wrap:wrap;gap:36px 40px}
.f-col{flex:1 1 0;min-width:115px}
.f-brand{flex:0 0 300px;min-width:300px}
  .footer h5{font-size:15px;font-weight:700;margin-bottom:18px;letter-spacing:1px}
  .footer ul{list-style:none}
  .footer ul li{margin-bottom:12px}
  .footer ul a{font-size:13.5px;color:rgba(255,255,255,.6);transition:color .2s}
  .footer ul a:hover{color:var(--blue-300)}
  .f-brand .f-tag{margin-top:14px;font-size:16px;font-weight:800;color:#fff;letter-spacing:.5px;white-space:nowrap}
  .f-brand .f-desc{margin-top:10px;font-size:13px;color:rgba(255,255,255,.55);line-height:1.9;white-space:nowrap}
  .f-cta{display:inline-flex;align-items:center;gap:8px;margin-top:22px;background:var(--grad);color:#fff;font-size:13.5px;font-weight:600;padding:10px 26px;border-radius:999px;box-shadow:var(--shadow-btn);transition:transform .2s,box-shadow .2s;white-space:nowrap}
  .f-cta:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(30,111,255,.45)}
  .f-legal{margin-top:24px;font-size:12px;color:rgba(255,255,255,.38);white-space:nowrap}
  .f-col h5{display:flex;align-items:center;gap:9px;font-size:14px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:1px;white-space:nowrap}
  .f-col h5::before{content:"";width:3px;height:15px;border-radius:2px;background:var(--grad)}
  .f-col ul{list-style:none}
  .f-col ul li{margin-bottom:12px}
  .f-col ul a{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.6);transition:color .2s,transform .2s;white-space:nowrap}
  .f-col ul a:hover{color:var(--blue-300);transform:translateX(3px)}
  .f-col ul a svg{flex:none;width:15px;height:15px;color:rgba(125,211,252,.5);transition:color .2s}
  .f-col ul a:hover svg{color:var(--blue-300)}
  .f-col ul a .dot{font-style:normal;font-size:1.15em;font-weight:700;color:var(--blue-300);margin:0 1px}

  .footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.1);padding:22px 0;font-size:12.5px;color:rgba(255,255,255,.45);display:flex;justify-content:center;align-items:center;gap:0;flex-wrap:nowrap;white-space:nowrap}
  .footer-bottom span{white-space:nowrap}
.footer-bottom span:first-child::after{content:"·";margin:0 14px;color:rgba(255,255,255,.3)}

  /* ---------- 响应式（移动端适配） ---------- */
  @media (max-width:1020px){
    .nav-links{display:none}
    .nav-burger{display:flex}
    .hero-inner{grid-template-columns:1fr;gap:56px}
    .hero{padding:64px 0 150px}
    .hero-wm{right:4px;top:-30px}
    .chip-1,.chip-2{position:static;top:auto;right:auto;left:auto;bottom:auto}
    .hero-visual{display:flex;flex-direction:column;align-items:flex-start;gap:10px;max-width:520px}
    .stats-grid{grid-template-columns:repeat(2,1fr)}
    .stat+.stat{border-left:none}
    .pro-cards{grid-template-columns:1fr}
    .flow{grid-template-columns:1fr;gap:18px}
    .flow-arrow{transform:rotate(90deg);padding:2px 0}
    .case-grid{grid-template-columns:1fr}
    .ind-grid{grid-template-columns:repeat(2,1fr)}
    .footer-grid{gap:32px 28px}
  }
  @media (max-width:640px){
    .wrap{padding:0 22px}
    .nav{padding:12px 22px}
    .nav-cta{display:none}
    .section{padding:70px 0}
    .stats-grid{grid-template-columns:1fr 1fr}
    .cta-panel{padding:64px 26px;border-radius:20px}
    .ind-grid{grid-template-columns:1fr}
    .h1-line2{white-space:normal}
    .cta-panel p{white-space:normal;font-size:14px}
    .footer-grid{flex-direction:column;gap:28px}
    .f-brand .f-desc,.f-brand .f-tag{white-space:normal}

    .hero-btns{flex-wrap:wrap}
    .btn-primary,.btn-ghost{width:100%}
    .cta-btns{flex-direction:column}
    .btn-white,.btn-ghost-light{width:100%}
    .pro-card{padding:34px 26px 32px}
    .section-title{font-size:26px}
    .footer-bottom{font-size:11.5px}
    .footer-bottom span:first-child::after{margin:0 10px}
  }
  @media (max-width:460px){
    .footer-bottom span:last-child{display:none}
    .footer-bottom span:first-child::after{content:none}
  }

/* ---------- 关于我们 · 品牌名片抽屉（drawer-lg） ---------- */
.drawer-lg{width:820px;padding:22px 24px 24px}
.drawer-lg .dlg-title{display:flex;align-items:center;gap:8px;font-size:12.5px;font-weight:800;letter-spacing:2px;color:var(--blue-600);margin-bottom:14px}
.drawer-lg .dlg-title i{font-style:normal;color:var(--ink-400);letter-spacing:0}
.drawer-lg .dlg-title::after{content:"";flex:1;height:1px;background:var(--line)}
.dlg-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.dlg-links{display:flex;flex-direction:column;gap:6px}
.dlg{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:12px;transition:background .22s ease,transform .22s ease}
.dlg:hover{background:var(--blue-50);transform:translateX(3px)}
.dlg .dlg-ic{flex:none;width:36px;height:36px;border-radius:10px;background:#fff;border:1px solid var(--line);color:var(--blue-600);display:flex;align-items:center;justify-content:center;transition:all .22s ease}
.dlg:hover .dlg-ic{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 6px 14px rgba(30,111,255,.3)}
.dlg .dlg-ic svg{width:17px;height:17px}
.dlg .dlg-tx{flex:1;min-width:0}
.dlg .dlg-tx b{display:block;font-size:13.5px;font-weight:700;color:var(--ink-900)}
.dlg .dlg-tx i{display:block;font-style:normal;font-size:11px;color:var(--ink-400);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.dlg .arr{font-size:12px;color:var(--blue-400);opacity:0;transform:translateX(-4px);transition:all .22s ease}
.dlg:hover .arr{opacity:1;transform:none}
.dlg-card{position:relative;overflow:hidden;border-radius:14px;padding:22px 20px 20px;background:radial-gradient(240px 150px at 88% -12%,rgba(77,163,255,.42),transparent 60%),linear-gradient(135deg,#071B3A,#0D2B5C 75%);color:#fff;display:flex;flex-direction:column;gap:10px}
.dlg-card .dlg-eyebrow{font-size:10.5px;letter-spacing:2px;color:var(--blue-300);font-weight:700}
.dlg-card .dlg-slogan{font-size:18px;font-weight:800;line-height:1.5}
.dlg-card .dlg-stats{display:flex;gap:16px;margin-top:2px}
.dlg-card .dlg-stats span{font-size:11px;color:#B9CAE4}
.dlg-card .dlg-stats b{display:block;font-size:16px;font-weight:800;color:#fff}
.dlg-cta{display:inline-flex;align-items:center;justify-content:center;gap:6px;align-self:flex-start;margin-top:6px;background:#fff;color:var(--navy);font-size:12.5px;font-weight:700;padding:9px 18px;border-radius:999px;transition:transform .2s ease,box-shadow .2s ease}
.dlg-cta:hover{transform:translateY(-1px);box-shadow:0 8px 18px rgba(0,0,0,.28)}
@media (max-width:960px){.drawer-lg{width:520px}}
/* 关于我们（导航末位）抽屉靠右对齐，避免溢出视口 */
.nav-item:last-child .drawer-lg{left:auto;right:0;transform:translateY(14px)}
.nav-item:last-child:hover .drawer-lg,.nav-item:last-child:focus-within .drawer-lg{transform:translateY(0)}
/* ============================================================
   关于我们 · 深色叙事抽屉（dlg-story）
   深蓝品牌底 + 大字标语 + 入口胶囊 + 迷你时间线 + 动作条
   ============================================================ */
.drawer-lg.dlg-story{width:920px;padding:26px 28px 24px;background:radial-gradient(460px 280px at 94% -20%,rgba(77,163,255,.42),transparent 60%),radial-gradient(380px 260px at -6% 112%,rgba(255,122,26,.20),transparent 62%),linear-gradient(135deg,#071B3A,#0D2B5C 72%,#123A74);border:1px solid rgba(255,255,255,.12);box-shadow:0 34px 80px rgba(7,27,58,.42),0 6px 20px rgba(7,27,58,.18)}
.dlg-story .ds-top{display:flex;align-items:center;justify-content:space-between}
.dlg-story .ds-eyebrow{font-size:11px;font-weight:800;letter-spacing:3px;color:var(--blue-300)}
.dlg-story .ds-flag{font-size:10.5px;letter-spacing:1px;color:#8FA9D4}
.dlg-story .ds-slogan{margin-top:14px;font-size:clamp(18px,1.9vw,21px);font-weight:800;line-height:1.55;color:#fff}
.dlg-story .ds-links{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:20px}
.dlg-story .ds-link{display:flex;flex-direction:column;align-items:center;gap:8px;padding:14px 6px 13px;border-radius:14px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);color:#fff;font-size:12.5px;font-weight:600;transition:all .25s ease}
.dlg-story .ds-link .ds-ic{width:34px;height:34px;border-radius:10px;background:rgba(255,255,255,.12);color:var(--blue-300);display:flex;align-items:center;justify-content:center;transition:all .25s ease}
.dlg-story .ds-link .ds-ic svg{width:16px;height:16px}
.dlg-story .ds-link:hover{background:linear-gradient(135deg,#1E6FFF,#4DA3FF);border-color:transparent;transform:translateY(-3px);box-shadow:0 12px 26px rgba(30,111,255,.42)}
.dlg-story .ds-link:hover .ds-ic{background:rgba(255,255,255,.22);color:#fff}
.dlg-story .ds-tl{display:flex;align-items:center;margin-top:20px;padding:12px 14px;border-radius:14px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.09)}
.dlg-story .ds-tl-item{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;padding:6px 0;border-radius:10px;transition:all .22s ease}
.dlg-story .ds-tl-item b{font-size:14px;font-weight:800;color:#fff;transition:color .2s ease}
.dlg-story .ds-tl-item span{font-size:10.5px;color:#8FA9D4}
.dlg-story .ds-tl-item:hover{background:rgba(255,255,255,.1);transform:translateY(-2px)}
.dlg-story .ds-tl-item:hover b{color:var(--blue-300)}
.dlg-story .ds-tl-item.ds-tl-ai b{color:var(--accent)}
.dlg-story .ds-tl-item.ds-tl-ai:hover b{color:#FFA25C}
.dlg-story .ds-tl-line{flex:none;width:20px;height:1px;background:linear-gradient(90deg,rgba(77,163,255,.45),rgba(77,163,255,.08))}
.dlg-story .ds-actions{display:flex;gap:12px;margin-top:20px}
.dlg-story .ds-btn{flex:1;display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:11px 16px;border-radius:12px;font-size:13px;font-weight:700;transition:all .25s ease;position:relative;overflow:hidden}
.dlg-story .ds-btn-main{background:#fff;color:var(--navy)}
.dlg-story .ds-btn-main:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,0,0,.32)}
.dlg-story .ds-btn-ghost{border:1px solid rgba(255,255,255,.35);color:#fff}
.dlg-story .ds-btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-2px)}
.dlg-story .ds-btn::after{content:"";position:absolute;top:-20%;left:-130%;width:55%;height:140%;background:linear-gradient(105deg,transparent,rgba(255,255,255,.5),transparent);transform:skewX(-20deg);transition:left .6s ease;pointer-events:none}
.dlg-story .ds-btn:hover::after{left:170%}
/* ============================================================
   关于我们 · 抽屉 v2（dlg-v2：浅色玻璃 + 彩色渐变图标）
   与页面浅色基调协调，顶部渐变描边 + 彩色图标 + 时间线底条
   ============================================================ */
.drawer-lg.dlg-v2{width:900px;padding:24px 26px 22px;background:linear-gradient(180deg,#FFFFFF,#F6FAFF);border:1px solid rgba(30,111,255,.14);box-shadow:0 34px 80px rgba(7,27,58,.18),0 6px 20px rgba(7,27,58,.06)}
.drawer-lg.dlg-v2::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,#1E6FFF,#4DA3FF 55%,#FF7A1A)}
.dlg-v2 .dv-top{display:flex;align-items:center;justify-content:space-between}
.dlg-v2 .dv-eyebrow{font-size:11px;font-weight:800;letter-spacing:3px;color:var(--blue-600)}
.dlg-v2 .dv-all{font-size:11.5px;color:var(--ink-400);display:inline-flex;align-items:center;gap:4px;transition:color .2s ease}
.dlg-v2 .dv-all:hover{color:var(--blue-600)}
.dlg-v2 .dv-slogan{margin-top:14px;font-size:clamp(17px,1.7vw,20px);font-weight:800;line-height:1.5;color:var(--navy)}
.dlg-v2 .dv-links{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:18px}
.dlg-v2 .dv-link{display:flex;flex-direction:column;align-items:center;gap:8px;padding:14px 6px 13px;border-radius:14px;background:var(--blue-50);border:1px solid rgba(30,111,255,.08);color:var(--ink-900);font-size:12.5px;font-weight:600;transition:all .25s ease}
.dlg-v2 .dv-link .dv-ic{width:36px;height:36px;border-radius:11px;display:flex;align-items:center;justify-content:center;color:#fff;transition:transform .25s ease,box-shadow .25s ease}
.dlg-v2 .dv-link .dv-ic svg{width:17px;height:17px}
.dlg-v2 .dv-link.dv-b .dv-ic{background:linear-gradient(135deg,#1E6FFF,#4DA3FF);box-shadow:0 6px 14px rgba(30,111,255,.32)}
.dlg-v2 .dv-link.dv-c .dv-ic{background:linear-gradient(135deg,#0D2B5C,#4DA3FF);box-shadow:0 6px 14px rgba(13,43,92,.3)}
.dlg-v2 .dv-link.dv-o .dv-ic{background:linear-gradient(135deg,#FF7A1A,#FFA25C);box-shadow:0 6px 14px rgba(255,122,26,.3)}
.dlg-v2 .dv-link.dv-n .dv-ic{background:linear-gradient(135deg,#123A74,#4DA3FF);box-shadow:0 6px 14px rgba(18,58,116,.3)}
.dlg-v2 .dv-link:hover{transform:translateY(-3px);box-shadow:0 12px 26px rgba(30,111,255,.14);border-color:rgba(30,111,255,.22)}
.dlg-v2 .dv-link:hover .dv-ic{transform:scale(1.08)}
.dlg-v2 .dv-foot{display:flex;align-items:center;gap:16px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
.dlg-v2 .dv-tl{flex:1;display:flex;align-items:center}
.dlg-v2 .dv-tl-item{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:4px 0;border-radius:8px;transition:all .2s ease}
.dlg-v2 .dv-tl-item b{font-size:13px;font-weight:800;color:var(--ink-900)}
.dlg-v2 .dv-tl-item span{font-size:10.5px;color:var(--ink-400)}
.dlg-v2 .dv-tl-item:hover{background:var(--blue-50)}
.dlg-v2 .dv-tl-item:hover b{color:var(--blue-600)}
.dlg-v2 .dv-tl-item.dv-tl-ai b{color:var(--accent)}
.dlg-v2 .dv-tl-item.dv-tl-ai:hover b{color:#E8871A}
.dlg-v2 .dv-tl-line{flex:none;width:16px;height:1px;background:linear-gradient(90deg,#4DA3FF,#C9DCF7)}
.dlg-v2 .dv-cta{flex:none;display:inline-flex;align-items:center;gap:6px;background:var(--grad);color:#fff;font-size:13px;font-weight:700;padding:11px 20px;border-radius:999px;box-shadow:var(--shadow-btn);transition:all .25s ease;position:relative;overflow:hidden}
.dlg-v2 .dv-cta::after{content:"";position:absolute;top:-20%;left:-130%;width:55%;height:140%;background:linear-gradient(105deg,transparent,rgba(255,255,255,.45),transparent);transform:skewX(-20deg);transition:left .6s ease;pointer-events:none}
.dlg-v2 .dv-cta:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(30,111,255,.4)}
.dlg-v2 .dv-cta:hover::after{left:170%}
@media (max-width:960px){.drawer-lg.dlg-v2{width:560px}}
/* ============================================================
   全站细节升级 v2.0（交互细节 · 动效 · 占位美化 · 无障碍）
   与前台各模块共用同一套设计令牌，追加于样式文件末尾
   ============================================================ */
*:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(30,111,255,.28);border-radius:8px}
::selection{background:rgba(30,111,255,.18)}
/* ---------- 滚动条 ---------- */
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,#b9cdf5,#8fb2f0);border-radius:8px;border:2px solid #fff}
::-webkit-scrollbar-thumb:hover{background:linear-gradient(180deg,#4DA3FF,#1E6FFF)}
::-webkit-scrollbar-track{background:transparent}
/* ---------- 卡片悬浮：上浮 + 光晕 ---------- */
.mega-card,.ind-card,.sol-card,.case-card,.cf-card,.feat-card,.gain-card,.pain-card,.cap-item,.road-step,.dir-card,.doc-card,.dl-card,.contact-card,.chw-card,.at-card,.ah2-card,.rel-card,.out-card,.post{
  transition:transform .32s ease,box-shadow .32s ease,border-color .32s ease,background .32s ease}
.mega-card:hover,.ind-card:hover,.sol-card:hover,.case-card:hover,.cf-card:hover,.feat-card:hover,.gain-card:hover,.pain-card:hover,.cap-item:hover,.road-step:hover,.dir-card:hover,.doc-card:hover,.dl-card:hover,.contact-card:hover,.chw-card:hover,.at-card:hover,.ah2-card:hover,.rel-card:hover,.out-card:hover,.post:hover{
  transform:translateY(-5px);box-shadow:0 22px 56px rgba(30,111,255,.16);border-color:rgba(30,111,255,.22)}
/* ---------- 卡片图标微动 ---------- */
.mega-card .mi,.ind-card .mi,.sol-card .mi,.cf-card .mi,.feat-card .mi,.gain-card .mi,.dir-card .mi,.doc-card .doc-ico,.dl-card .dl-ico,.contact-card .mi,.chw-card .mi,.at-card .mi{
  transition:transform .32s ease,background .32s ease,color .32s ease,box-shadow .32s ease}
.mega-card:hover .mi,.ind-card:hover .mi,.sol-card:hover .mi,.cf-card:hover .mi,.feat-card:hover .mi,.gain-card:hover .mi,.dir-card:hover .mi,.doc-card:hover .doc-ico,.dl-card:hover .dl-ico,.contact-card:hover .mi,.chw-card:hover .mi,.at-card:hover .mi{
  transform:scale(1.1) rotate(-4deg);box-shadow:0 8px 20px rgba(30,111,255,.22)}
/* ---------- 箭头前推 / 链接微动 ---------- */
.mf-link,.f-cta,.sol-more .sm-arr,.case-card .cc-more,.cf-card .cf-arr,.dv-all,.dl .arr,.btn-primary,.btn-white{
  transition:transform .25s ease,color .2s ease,background .25s ease,box-shadow .25s ease,border-color .2s ease}
.mf-link:hover,.f-cta:hover{transform:translateX(4px)}
.sol-more:hover .sm-arr,.case-card:hover .cc-more,.cf-card:hover .cf-arr,.dl:hover .arr{transform:translateX(4px)}
.btn-primary:hover,.btn-white:hover{box-shadow:0 14px 34px rgba(30,111,255,.38);transform:translateY(-2px)}
.btn-ghost:hover,.btn-ghost-light:hover{border-color:rgba(30,111,255,.55);color:var(--blue-600)}
/* ---------- 抽屉链接下划线 ---------- */
.dv-link{position:relative}
.dv-link::after{content:"";position:absolute;left:15px;right:15px;bottom:7px;height:2px;border-radius:2px;background:var(--grad);opacity:0;transform:scaleX(.35);transition:opacity .25s ease,transform .25s ease}
.dv-link:hover::after{opacity:1;transform:scaleX(1)}
/* ---------- 占位区域美化（配图位 / 图表位） ---------- */
.oc-chart{position:relative;overflow:hidden;border:1.5px dashed rgba(30,111,255,.28);background:linear-gradient(160deg,var(--blue-50),#fff 60%,var(--blue-100));border-radius:14px}
.oc-chart::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(30,111,255,.15) 1px,transparent 1px);background-size:22px 22px;opacity:.55;pointer-events:none}
.pic-slot{position:relative;overflow:hidden;border:1.5px dashed rgba(30,111,255,.3);background:
  linear-gradient(135deg,rgba(30,111,255,.06),rgba(77,163,255,.03) 50%,rgba(30,111,255,.08)),
  repeating-linear-gradient(45deg,transparent 0 14px,rgba(30,111,255,.045) 14px 28px);
  min-height:280px;display:flex;align-items:center;justify-content:center}
.pic-slot::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(30,111,255,.13) 1px,transparent 1px);background-size:24px 24px;opacity:.5;pointer-events:none}
/* ---------- reveal 交错入场 ---------- */
.reveal.in:nth-child(2){transition-delay:.06s}
.reveal.in:nth-child(3){transition-delay:.12s}
.reveal.in:nth-child(4){transition-delay:.18s}
.reveal.in:nth-child(5){transition-delay:.24s}
.reveal.in:nth-child(6){transition-delay:.3s}
/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1!important;transform:none!important}
  .ans i{animation:ansBounce 1.4s ease-in-out infinite!important}
  .ans i:nth-child(2){animation-delay:.12s!important}
  .hero h1 .ai-word{animation:aiPulse 3s ease-in-out infinite!important}
  .hero h1 .ai-word::after{animation:ringPulse 3s ease-in-out infinite!important}
  .ai-spark{animation:sparkTwinkle 2.6s ease-in-out infinite!important}
}

.footer-bottom a{color:inherit;text-decoration:none}
.footer-bottom a:hover{color:#fff}