/* =============================================================
   甲光志科技 JGZVision 官网样式 · 2026 视觉升级版
   风格：高端 AI 科技感 / 深空蓝 + 电光蓝 / 玻璃拟态 / 细腻动效
   ============================================================= */
:root{
  --primary:#2f7bff;
  --primary-2:#00b2ff;
  --primary-deep:#0a58d6;
  --primary-light:#e8f1ff;
  --glow:rgba(47,123,255,.35);
  --navy:#081a33;
  --navy-2:#0d2b52;
  --ink:#0f1c2e;
  --text:#54617a;
  --muted:#8494ab;
  --bg:#f4f7fc;
  --line:#e4eaf3;
  --radius:14px;
  --radius-lg:22px;
  --shadow-sm:0 2px 10px rgba(15,28,46,.05);
  --shadow:0 12px 32px rgba(15,28,46,.09);
  --shadow-lg:0 28px 64px rgba(15,28,46,.16);
  --grad:linear-gradient(120deg,#2f7bff,#00b2ff);
  --grad-deep:linear-gradient(120deg,#0a58d6,#00b2ff);
  --grad-navy:linear-gradient(120deg,#071730 0%,#0d2b52 55%,#15539c 100%);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,Arial,sans-serif;color:var(--text);font-size:15px;line-height:1.75;background:#fff;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
ul{list-style:none}
::selection{background:rgba(47,123,255,.2);color:var(--ink)}
.container{max-width:1240px;margin:0 auto;padding:0 20px}
.wrap{width:100%;overflow:hidden}

/* ================= 顶部条 ================= */
.topbar{background:linear-gradient(90deg,#071730,#0d2b52);color:#9fb4d4;font-size:13px;position:relative;z-index:100}
.topbar .container{display:flex;justify-content:space-between;align-items:center;height:38px}
.topbar a{color:#b9c9e4;transition:color .2s}
.topbar a:hover{color:var(--primary-2)}
.topbar .links a{margin-left:16px;position:relative}
.topbar .links a+a::before{content:"·";position:absolute;left:-11px;color:#3d547a}

/* ================= 主导航 ================= */
.header{position:sticky;top:0;z-index:999;background:rgba(255,255,255,.85);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:0 1px 0 var(--line),0 6px 24px rgba(15,28,46,.06)}
.nav{display:flex;align-items:center;height:76px}
.logo{display:flex;align-items:center;gap:12px;margin-right:42px;flex:none}
.logo-mark{width:46px;height:46px;border-radius:12px;background:var(--grad);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:15px;letter-spacing:.5px;box-shadow:0 6px 18px var(--glow);position:relative}
.logo-mark::after{content:"";position:absolute;inset:0;border-radius:12px;background:linear-gradient(180deg,rgba(255,255,255,.35),transparent 45%);pointer-events:none}
.logo-text b{display:block;font-size:19px;color:var(--ink);letter-spacing:1.5px}
.logo-text span{font-size:11.5px;color:var(--muted);letter-spacing:.4px}
.menu{display:flex;flex:1;justify-content:flex-end}
.menu>li{position:relative}
.menu>li>a{display:block;padding:28px 16px;font-size:15.5px;color:var(--ink);font-weight:500;position:relative}
.menu>li>a::after{content:"";position:absolute;left:16px;right:16px;bottom:20px;height:3px;border-radius:3px;background:var(--grad);transform:scaleX(0);transform-origin:left;transition:transform .28s ease}
.menu>li>a:hover,.menu>li.active>a{color:var(--primary)}
.menu>li>a:hover::after,.menu>li.active>a::after{transform:scaleX(1)}
.dropdown{position:absolute;top:100%;left:0;min-width:216px;background:rgba(255,255,255,.97);backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;transform:translateY(12px);transition:all .25s ease;padding:8px;margin-top:2px}
.menu>li:hover .dropdown{opacity:1;visibility:visible;transform:none}
.dropdown a{display:block;padding:10px 16px;font-size:14px;color:var(--text);border-radius:8px;transition:.2s}
.dropdown a:hover{color:var(--primary);background:var(--primary-light)}
.nav-toggle{display:none;margin-left:auto;font-size:26px;color:var(--ink);cursor:pointer;line-height:1}

/* ================= 轮播 ================= */
.banner{position:relative;height:600px;overflow:hidden;background:var(--grad-navy)}
.banner .slide{position:absolute;inset:0;opacity:0;transition:opacity .9s ease;display:flex;align-items:center;background-size:cover;background-position:center}
.banner .slide.active{opacity:1}
.banner .slide-hero-1{background-image:url("../images/hero-ai.svg")}
.banner .slide-hero-2{background-image:url("../images/hero-platform.svg")}
.banner .slide::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 78% 28%,rgba(0,178,255,.22),transparent 52%),radial-gradient(circle at 12% 85%,rgba(47,123,255,.16),transparent 45%)}
.banner .slide::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(circle at 50% 60%,#000 30%,transparent 80%);-webkit-mask-image:radial-gradient(circle at 50% 60%,#000 30%,transparent 80%)}
.banner::before{content:"";position:absolute;left:0;right:0;height:170px;background:linear-gradient(180deg,transparent,rgba(0,212,255,.14),transparent);animation:scan 7s linear infinite;z-index:1;pointer-events:none}
@keyframes scan{0%{top:-18%}100%{top:118%}}
.banner-inner{position:relative;z-index:2;max-width:1240px;margin:0 auto;padding:0 20px;width:100%}
.banner .tag{display:inline-flex;align-items:center;gap:8px;background:rgba(0,178,255,.14);border:1px solid rgba(0,178,255,.45);color:#9fdcff;padding:6px 18px;border-radius:24px;font-size:13px;letter-spacing:2.5px;margin-bottom:22px;backdrop-filter:blur(4px)}
.banner .tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary-2);box-shadow:0 0 10px var(--primary-2)}
.banner h1{font-size:48px;color:#fff;font-weight:800;line-height:1.28;margin-bottom:18px;letter-spacing:1px}
.banner h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.banner p{font-size:17px;color:#c9e8ff;max-width:660px;opacity:.95}
.banner .btn-group{margin-top:34px;display:flex;gap:16px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 30px;border-radius:32px;font-size:15px;font-weight:600;transition:all .25s ease;cursor:pointer;border:none;letter-spacing:.5px}
.btn::after{content:"→";font-size:14px;transition:transform .25s ease}
.btn:hover::after{transform:translateX(4px)}
.btn-blue{background:var(--grad);color:#fff;box-shadow:0 10px 26px var(--glow)}
.btn-blue:hover{background:var(--grad-deep);transform:translateY(-3px);box-shadow:0 16px 34px var(--glow)}
.btn-ghost{background:rgba(255,255,255,.06);color:#fff;border:1px solid rgba(255,255,255,.5);backdrop-filter:blur(4px)}
.btn-ghost:hover{background:rgba(255,255,255,.14);transform:translateY(-3px)}
.banner-dots{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);display:flex;gap:9px;z-index:3}
.banner-dots i{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.4);cursor:pointer;transition:all .3s ease}
.banner-dots i.active{background:var(--primary-2);width:28px;border-radius:6px;box-shadow:0 0 12px var(--primary-2)}

/* ================= 通用区块 ================= */
.section{padding:84px 0;position:relative}
.section.bg{background:var(--bg)}
.section.bg::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(47,123,255,.18),transparent)}
.section-head{text-align:center;margin-bottom:50px}
.section-head .en{display:inline-block;font-size:13px;letter-spacing:6px;color:var(--primary);text-transform:uppercase;margin-bottom:10px;font-weight:600;background:linear-gradient(90deg,#2f7bff,#00b2ff);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.section-head h2{font-size:34px;color:var(--ink);font-weight:800;letter-spacing:1px}
.section-head h2::after{content:"";display:block;width:56px;height:4px;border-radius:4px;background:var(--grad);margin:16px auto 0;box-shadow:0 4px 12px var(--glow)}
.section-head p{color:var(--muted);margin-top:14px}

/* ================= 数据条 ================= */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;text-align:center}
.stat-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px 16px;transition:all .3s ease;position:relative;overflow:hidden}
.stat-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad);transform:scaleX(0);transition:transform .35s ease}
.stat-card:hover{box-shadow:var(--shadow);transform:translateY(-6px);border-color:transparent}
.stat-card:hover::before{transform:scaleX(1)}
.stat-card .num{font-size:42px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;line-height:1.2}
.stat-card .num em{font-style:normal;font-size:20px;margin-left:2px}
.stat-card .label{color:var(--muted);margin-top:8px;font-size:14px}

/* ================= 关于 ================= */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.about-img{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);position:relative}
.about-img::after{content:"";position:absolute;inset:0;border:1px solid rgba(47,123,255,.25);border-radius:var(--radius-lg);pointer-events:none}
.about-img img{width:100%;height:100%;min-height:340px;object-fit:cover;display:block;transition:transform .6s ease}
.about-img:hover img{transform:scale(1.04)}
.about-text h3{font-size:27px;color:var(--ink);margin-bottom:18px;letter-spacing:.5px}
.about-text p{margin-bottom:14px}
.about-text b{color:var(--primary)}
.about-features{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.about-features span{background:var(--primary-light);color:var(--primary-deep);padding:7px 18px;border-radius:22px;font-size:13px;font-weight:600;display:inline-flex;align-items:center;gap:7px}
.about-features span::before{content:"✓";font-size:12px;color:#fff;background:var(--grad);width:16px;height:16px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center}

/* ================= 产品卡片 ================= */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.prod-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:all .3s ease}
.prod-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-8px);border-color:rgba(47,123,255,.4)}
.prod-card .img{height:190px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#eef5ff,#e0f1ff);overflow:hidden;position:relative}
.prod-card .img::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 70% 20%,rgba(47,123,255,.14),transparent 55%)}
.prod-card .img svg{width:90px;height:90px;position:relative;transition:transform .45s ease}
.prod-card:hover .img svg{transform:scale(1.12) rotate(-4deg)}
.prod-card .body{padding:20px 22px 24px}
.prod-card .body h3{font-size:17px;color:var(--ink);margin-bottom:8px}
.prod-card .body p{font-size:13px;color:var(--muted);line-height:1.65}
.prod-card .more{display:inline-flex;align-items:center;gap:5px;color:var(--primary);font-size:13px;font-weight:600;margin-top:12px;transition:gap .25s ease}
.prod-card .more:hover{gap:10px}
.card-tag{display:inline-block;background:var(--grad);color:#fff;font-size:12px;padding:3px 12px;border-radius:14px;margin-bottom:10px;box-shadow:0 4px 10px var(--glow)}

/* ================= 平台大卡片 ================= */
.platform{background:var(--grad-navy);border-radius:var(--radius-lg);padding:54px;color:#fff;position:relative;overflow:hidden}
.platform::before{content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(0,178,255,.22),transparent 65%)}
.platform::after{content:"";position:absolute;left:40%;top:-40px;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,rgba(47,123,255,.18),transparent 65%)}
.platform h3{font-size:29px;margin-bottom:14px;position:relative;z-index:1}
.platform p{color:#c9e8ff;max-width:780px;position:relative;z-index:1}
.platform .flow{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:34px;position:relative;z-index:2}
.platform .flow div{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:12px;padding:20px 14px;text-align:center;backdrop-filter:blur(4px);transition:all .3s ease}
.platform .flow div:hover{background:rgba(255,255,255,.14);transform:translateY(-4px);border-color:rgba(0,178,255,.5)}
.platform .flow b{display:block;font-size:17px;margin-bottom:6px}
.platform .flow span{font-size:12px;color:#a8d8f7}

/* ================= 行业方案 ================= */
.industry-card{position:relative;border-radius:var(--radius);overflow:hidden;height:200px;display:flex;align-items:flex-end;background:var(--grad-navy);padding:24px;color:#fff;transition:all .3s ease}
.industry-card::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,26,51,0),rgba(8,26,51,.45));pointer-events:none}
.industry-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.industry-card h3{font-size:18px;position:relative;z-index:1}
.industry-card p{font-size:12.5px;color:#bcd8ef;margin-top:5px;position:relative;z-index:1}
.industry-card .icon{position:absolute;right:18px;top:18px;font-size:36px;opacity:.55;transition:transform .4s ease}
.industry-card:hover .icon{transform:scale(1.15) rotate(-6deg);opacity:.8}

/* ================= 案例 ================= */
.case-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:all .3s ease}
.case-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-6px);border-color:rgba(47,123,255,.35)}
.case-card .thumb{position:relative;height:190px;overflow:hidden;background:var(--grad-navy)}
.case-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .55s ease}
.case-card:hover .thumb img{transform:scale(1.08)}
.case-card .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,26,51,.06),rgba(8,26,51,.28))}
.case-card .body{padding:20px 22px 22px}
.case-card h3{font-size:16px;color:var(--ink);margin-bottom:8px}
.case-card p{font-size:13px;color:var(--muted)}
.case-card .steps{font-size:12px;color:var(--primary);font-weight:600;margin-top:10px;display:inline-flex;align-items:center;gap:5px}
.case-card .steps::before{content:"";width:14px;height:2px;background:var(--grad);border-radius:2px}

/* ================= 资讯 ================= */
.news-list{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.news-item{display:flex;gap:18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px;transition:all .3s ease}
.news-item:hover{box-shadow:var(--shadow);border-color:rgba(47,123,255,.4);transform:translateY(-3px)}
.news-item .date{flex:none;width:68px;text-align:center;background:var(--primary-light);border-radius:10px;padding:10px 0;position:relative;overflow:hidden}
.news-item .date::after{content:"";position:absolute;bottom:0;left:0;right:0;height:3px;background:var(--grad)}
.news-item .date b{display:block;font-size:21px;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;line-height:1.2}
.news-item .date span{font-size:12px;color:var(--muted)}
.news-item h3{font-size:15px;color:var(--ink);margin-bottom:6px;transition:color .2s}
.news-item h3:hover{color:var(--primary)}
.news-item p{font-size:13px;color:var(--muted)}

/* ================= 联系 CTA ================= */
.cta{background:var(--grad-navy);border-radius:var(--radius-lg);padding:48px 54px;display:flex;align-items:center;justify-content:space-between;color:#fff;flex-wrap:wrap;gap:22px;position:relative;overflow:hidden;box-shadow:0 24px 60px rgba(13,43,82,.28)}
.cta::before{content:"";position:absolute;right:-70px;top:-70px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(0,178,255,.25),transparent 65%)}
.cta>*{position:relative}
.cta h3{font-size:25px;letter-spacing:.5px}
.cta p{opacity:.9;margin-top:6px}
.cta .phone{font-size:28px;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}

/* ================= 页脚 ================= */
.footer{background:#071527;color:#8fa3c0;padding:60px 0 0;position:relative}
.footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(0,178,255,.4),transparent)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:44px}
.footer h4{color:#fff;font-size:16px;margin-bottom:18px;letter-spacing:1px;position:relative;padding-left:14px}
.footer h4::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--grad)}
.footer ul li{margin-bottom:10px;font-size:14px}
.footer ul a{transition:color .2s,padding-left .2s}
.footer ul a:hover{color:var(--primary-2);padding-left:4px}
.footer .fbrand b{color:#fff;font-size:20px;letter-spacing:1px}
.footer .fbrand p{margin-top:14px;font-size:13px;line-height:2;color:#7d92b0}
.footer .contact li{display:flex;gap:10px}
.footer .contact li b{color:#fff;width:54px;flex:none}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;text-align:center;font-size:13px;color:#6f84a3}
.footer-bottom a{margin:0 10px;transition:color .2s}
.footer-bottom a:hover{color:var(--primary-2)}

/* ================= 页面横幅(子页) ================= */
.page-banner{background:var(--grad-navy);padding:72px 0 64px;text-align:center;color:#fff;position:relative;overflow:hidden}
.page-banner::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 82% 18%,rgba(0,178,255,.32),transparent 42%),radial-gradient(circle at 12% 88%,rgba(47,123,255,.22),transparent 40%)}
.page-banner::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:54px 54px;mask-image:radial-gradient(circle at 50% 100%,#000 20%,transparent 75%);-webkit-mask-image:radial-gradient(circle at 50% 100%,#000 20%,transparent 75%)}
.page-banner .container{position:relative;z-index:1}
.page-banner h1{font-size:36px;font-weight:800;letter-spacing:2px}
.page-banner p{color:#a8d8f7;margin-top:12px}
.crumb{margin-top:14px;font-size:13px;color:#8fd9ff}
.crumb a:hover{color:#fff}

/* ================= 内页通用 ================= */
.page-section{padding:72px 0}
.rich h3{color:var(--ink);margin:30px 0 14px;font-size:21px;position:relative;padding-left:16px}
.rich h3::before{content:"";position:absolute;left:0;top:4px;bottom:4px;width:4px;border-radius:4px;background:var(--grad)}
.rich p{margin-bottom:12px}
.rich ul{padding-left:22px;list-style:disc}
.rich ul li{margin-bottom:8px}
.rich ul li::marker{color:var(--primary)}
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:44px}
.info-card{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:28px;margin-bottom:18px;transition:all .3s ease}
.info-card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.info-card h3{color:var(--ink);margin-bottom:14px;font-size:18px;display:flex;align-items:center;gap:8px}
.info-card h3::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--grad)}
.info-card li{display:flex;gap:12px;margin-bottom:12px;font-size:14px}
.info-card li b{color:var(--primary);flex:none}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:34px;box-shadow:var(--shadow-lg)}
.form-card h3{color:var(--ink);margin-bottom:20px;font-size:20px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-item{margin-bottom:16px}
.form-item label{display:block;font-size:13px;color:var(--muted);margin-bottom:7px;font-weight:500}
.form-item input,.form-item textarea,.form-item select{width:100%;border:1.5px solid var(--line);border-radius:10px;padding:11px 14px;font-size:14px;font-family:inherit;outline:none;transition:all .2s ease;background:#fbfcfe;color:var(--ink)}
.form-item input:focus,.form-item textarea:focus,.form-item select:focus{border-color:var(--primary);background:#fff;box-shadow:0 0 0 4px rgba(47,123,255,.13)}

/* ================= 产品配图 ================= */

.product-figure{display:flex;align-items:center;gap:28px;margin:22px 0 6px;background:var(--grad-navy);border-radius:var(--radius-lg);padding:22px 28px;box-shadow:var(--shadow-lg);overflow:hidden}
.product-figure img{width:360px;flex:none;border-radius:12px;filter:drop-shadow(0 12px 24px rgba(0,0,0,.35))}

.product-figure1{display:flex;align-items:center;gap:28px;margin:22px 0 6px;background:var(--grad-navy);border-radius:var(--radius-lg);padding:22px 28px;box-shadow:var(--shadow-lg);overflow:hidden}
.product-figure1 img{width:100%;flex:none;border-radius:12px;filter:drop-shadow(0 12px 24px rgba(0,0,0,.35))}
.rich h3{margin-top:46px}

/* ================= 滚动渐入 ================= */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .65s ease,transform .65s ease}
.reveal.shown{opacity:1;transform:none}
.stat-card.reveal,.prod-card.reveal,.industry-card.reveal,.case-card.reveal,.news-item.reveal{transition-delay:.08s}

/* ================= 细节 ================= */
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,#2f7bff,#00b2ff);border-radius:6px;border:2px solid var(--bg)}
@media (prefers-reduced-motion:reduce){
  .banner::before,.reveal{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  *{animation-duration:.01ms!important;transition-duration:.01ms!important}
}

/* ================= 响应式 ================= */
@media (max-width:1024px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .platform .flow{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .banner{height:520px}
}
@media (max-width:768px){
  .topbar{display:none}
  .nav-toggle{display:block}
  .menu{position:fixed;top:76px;left:0;right:0;background:rgba(255,255,255,.98);backdrop-filter:blur(12px);flex-direction:column;box-shadow:0 16px 32px rgba(15,28,46,.12);max-height:0;overflow:hidden;transition:max-height .35s ease}
  .menu.open{max-height:520px;overflow:auto}
  .menu>li>a{padding:14px 20px}
  .dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;padding:0 24px 10px;min-width:auto;background:transparent}
  .banner{height:460px}
  .banner h1{font-size:31px}
  .banner p{font-size:15px}
  .grid-3,.grid-2,.news-list{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .case-card .thumb{height:150px}
  .product-figure{flex-direction:column;align-items:flex-start}
  .product-figure img{width:100%}
  .cta{padding:36px 28px}
  .section{padding:60px 0}
  .platform{padding:36px 26px}
}