:root{
  --primary-blue:#469FE1; --secondary-blue:#5AADE8; --dark-blue:#2B7CB8; --navy:#0a2463;
  --text-dark:#1a1a1a; --text-gray:#5a5a5a; --text-muted:#94a3b8;
  --light-bg:#f8f9fa; --white:#fff; --blue-tint:#E8F4FC;
  --border-light:rgba(0,0,0,.05); --border-line:#e2e8f0;
  --shadow-sm:0 2px 10px rgba(0,0,0,.05); --shadow-md:0 4px 20px rgba(0,0,0,.08);
  --radius-sm:6px; --radius-md:8px; --radius-lg:12px;
  --nav-height:70px; --container-max:1400px; --ease:.3s ease;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:106px}
body{font-family:-apple-system,system-ui,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,"Helvetica Neue","PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--text-dark);background:var(--white);line-height:1.6;-webkit-font-smoothing:antialiased}
.container{max-width:var(--container-max);margin:0 auto;padding:0 40px}
a{color:var(--dark-blue);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;height:auto;display:block}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.98);border-bottom:1px solid var(--border-light);backdrop-filter:saturate(180%) blur(8px)}
.nav .inner{display:flex;align-items:center;justify-content:space-between;height:86px;max-width:var(--container-max);margin:0 auto;padding:0 40px;gap:20px}
.nav .logo img{height:54px;width:auto}
.nav ul{list-style:none;display:flex;gap:28px;align-items:center;margin-left:auto}
.nav ul a{color:var(--text-dark);font-size:15px;font-weight:500;text-decoration:none;transition:color var(--ease)}
.nav ul a:hover,.nav ul a.on{color:var(--primary-blue)}
.nav .lang{font-size:13.5px;color:var(--text-muted);white-space:nowrap}
.nav .lang a{color:var(--text-muted)}
.nav .lang a.on{color:var(--primary-blue);font-weight:600}
.nav .cta{background:var(--primary-blue);color:#fff !important;padding:10px 20px;border-radius:var(--radius-sm);font-size:15px;font-weight:600;text-decoration:none;transition:background var(--ease)}
.nav .cta:hover{background:var(--dark-blue);text-decoration:none}

/* hero */
.hero{background:linear-gradient(135deg,var(--navy) 0%,var(--primary-blue) 90%);color:#fff;overflow:hidden}
.hero .inner{max-width:var(--container-max);margin:0 auto;padding:30px 40px 28px;display:grid;grid-template-columns:1.06fr .94fr;gap:40px;align-items:center}
.hero h1{font-size:33px;line-height:1.28;font-weight:700;letter-spacing:-.5px;margin-bottom:14px}
.hero p{font-size:18px;line-height:1.65;color:rgba(255,255,255,.9);max-width:620px;margin-bottom:24px}
.hero .modes{list-style:none;margin:0 0 22px;max-width:660px}
.hero .modes li{position:relative;padding:6px 0 6px 14px;font-size:15px;line-height:1.6;color:rgba(255,255,255,.9)}
.hero .modes li:before{content:"";position:absolute;left:0;top:14px;width:5px;height:5px;border-radius:50%;background:#8FD3FF}
.hero .modes li b{color:#fff;font-weight:700;margin-right:6px}
.hero .btns{display:flex;gap:14px;flex-wrap:wrap}
.btn-primary{background:#fff;color:var(--navy) !important;padding:12px 26px;border-radius:var(--radius-md);font-weight:700;font-size:16px;text-decoration:none;transition:transform var(--ease),box-shadow var(--ease)}
.btn-primary:hover{text-decoration:none;transform:translateY(-1px);box-shadow:0 8px 24px rgba(0,0,0,.18)}
.btn-ghost{border:1.5px solid rgba(255,255,255,.7);color:#fff !important;padding:11px 24px;border-radius:var(--radius-md);font-weight:600;font-size:16px;text-decoration:none;transition:background var(--ease)}
.btn-ghost:hover{background:rgba(255,255,255,.12);text-decoration:none}
.hero figure img{margin-left:auto;max-height:248px;width:auto;filter:drop-shadow(0 18px 40px rgba(0,0,0,.28))}

/* page title (inner pages) — compact, no full-bleed banner */
.pagetitle{padding:34px 0 26px;border-bottom:1px solid var(--border-line);background:#fff}
.pagetitle h1{font-size:30px;font-weight:700;letter-spacing:-.4px;color:var(--text-dark);margin-bottom:6px;
  padding-left:14px;border-left:4px solid var(--primary-blue);line-height:1.3}
.pagetitle p{font-size:16.5px;color:var(--text-gray);max-width:900px;padding-left:18px}
.pagetitle + section{padding-top:44px}
.anchorbar{padding:22px 0 0}
.pagetitle + .anchorbar{padding-top:22px}
.anchorbar + section{padding-top:34px}

/* sections */
section{padding:64px 0}
section.tint{background:var(--light-bg)}
.eyebrow{font-size:12.5px;font-weight:700;letter-spacing:2.6px;color:var(--primary-blue);margin-bottom:12px;text-transform:uppercase}
h2{font-size:32px;font-weight:700;letter-spacing:-.4px;line-height:1.3;margin-bottom:14px}
h3{font-size:21px;font-weight:700;margin-bottom:10px}
.lede{font-size:17px;line-height:1.8;color:var(--text-gray);max-width:940px;margin-bottom:30px}
p{color:var(--text-gray)}
.muted{color:var(--text-muted)}

/* two-end panels */
.ends{display:flex;gap:18px;align-items:stretch;flex-wrap:wrap;margin-bottom:24px}
.end{flex:1;min-width:300px;background:#fff;border:1px solid var(--border-line);border-radius:var(--radius-lg);padding:26px 28px;box-shadow:var(--shadow-sm)}
.end .lbl{font-size:11.5px;font-weight:700;letter-spacing:1.8px;color:var(--primary-blue);margin-bottom:6px}
.end h3{font-size:21px;color:var(--navy);margin-bottom:14px}
.end ul{list-style:none}
.end li{font-size:15.5px;color:var(--text-gray);padding:8px 0 8px 22px;position:relative;border-bottom:1px dashed #eef2f6}
.end li:last-child{border-bottom:none}
.end li:before{content:"›";position:absolute;left:4px;color:var(--primary-blue);font-weight:700}
.arrows{flex:0 0 108px;min-width:108px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px}
.arrows .a{font-size:28px;color:#b8cbdd;line-height:1}
.arrows .t{font-size:11.5px;color:var(--text-muted);text-align:center;line-height:1.55;max-width:110px}
.arrows .t .mid{display:block;margin-top:6px;color:var(--primary-blue);font-weight:600}
.band{background:var(--navy);color:#fff;border-radius:var(--radius-lg);padding:26px 30px;font-size:16.5px;line-height:1.75;margin-bottom:24px}
.band b{color:#8FD3FF}
.callout{font-size:16.5px;line-height:1.8;color:var(--text-gray);border-left:4px solid var(--primary-blue);padding-left:20px;max-width:1060px}
.callout b{color:var(--text-dark)}

/* brand statement */
.claim{font-size:26px;line-height:1.45;font-weight:700;color:var(--text-dark);letter-spacing:-.3px;margin-bottom:16px;max-width:1000px}
.stmt{font-size:18px;line-height:1.85;color:var(--text-gray);max-width:1020px}
.triad{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:26px 0}
.triad span{background:var(--blue-tint);border:1px solid #c7e2f6;color:var(--navy);font-size:14.5px;font-weight:700;padding:10px 16px;border-radius:var(--radius-md)}
.triad i{font-style:normal;color:#b8cbdd;font-size:17px}
.aim{font-size:18.5px;line-height:1.75;color:var(--navy);font-weight:600;border-left:4px solid var(--primary-blue);padding-left:20px;max-width:1000px}

/* contrast cards */
.cards{display:flex;gap:20px;flex-wrap:wrap}
.card{flex:1;min-width:320px;border-radius:var(--radius-lg);padding:26px 28px}
.card.no{background:var(--light-bg);border:1px solid var(--border-line)}
.card.yes{background:var(--blue-tint);border:1px solid #c7e2f6}
.card .tag{font-size:11.5px;font-weight:700;letter-spacing:1.8px;margin-bottom:10px}
.card.no .tag{color:var(--text-muted)} .card.yes .tag{color:var(--dark-blue)}
.card.no h3{color:var(--text-muted)} .card.yes h3{color:var(--navy)}
.card.no p{color:var(--text-muted)}

/* mission / vision */
.mv{display:flex;gap:20px;flex-wrap:wrap}
.mv > div{flex:1;min-width:320px;background:#fff;border:1px solid var(--border-line);border-left:4px solid var(--primary-blue);border-radius:var(--radius-lg);padding:28px 30px;box-shadow:var(--shadow-sm)}
.mv .lbl{font-size:12px;font-weight:700;letter-spacing:2.2px;color:var(--primary-blue);margin-bottom:10px}
.mv .cn{font-size:20px;line-height:1.6;font-weight:700;color:var(--navy);margin-bottom:10px}
.mv .en{font-size:15.5px;line-height:1.7;color:var(--text-gray);font-style:italic}

/* partnership */
.partner{display:flex;gap:26px;align-items:flex-start;flex-wrap:wrap}
.badge{flex:0 0 auto;background:var(--blue-tint);border:1px solid #c7e2f6;color:var(--navy);font-size:12px;font-weight:700;padding:8px 14px;border-radius:20px;letter-spacing:.4px}
.partner .body{flex:1;min-width:320px;font-size:16px;line-height:1.8;color:var(--text-gray);max-width:980px}
.partner .body b{color:var(--text-dark)}
.partner .warn{display:block;margin-top:14px;font-size:14px;color:var(--text-muted)}

/* product entry cards */
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:20px}
.pcard{display:block;background:#fff;border:1px solid var(--border-line);border-radius:var(--radius-lg);padding:26px 28px;box-shadow:var(--shadow-sm);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);text-decoration:none;color:inherit}
.pcard:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#c7e2f6;text-decoration:none}
a.pcard img{width:100%;height:190px;object-fit:contain;object-position:center;margin-bottom:16px;background:var(--light-bg);border-radius:var(--radius-md);padding:12px}
.pcard h3{color:var(--navy)}
.pcard p{font-size:15.5px;margin-bottom:14px}
.pcard a,.pcard .more{font-weight:600;color:var(--dark-blue);font-size:15.5px}

/* product page */
.prod{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:start}
.prod figure img{border-radius:var(--radius-lg)}
.meta{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:20px}
.meta span{background:var(--blue-tint);color:var(--dark-blue);font-size:13.5px;font-weight:600;padding:6px 14px;border-radius:20px}
ul.check{list-style:none;margin:18px 0}
ul.check li{position:relative;padding:9px 0 9px 28px;font-size:16px;color:var(--text-gray);border-bottom:1px solid #f0f3f7}
ul.check li:last-child{border-bottom:none}
ul.check li:before{content:"✓";position:absolute;left:2px;color:var(--primary-blue);font-weight:700}
ul.check li b{color:var(--text-dark)}
table{width:100%;border-collapse:collapse;margin:18px 0;font-size:15.5px}
th,td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--border-line);color:var(--text-gray);vertical-align:top}
th{background:var(--light-bg);color:var(--navy);font-weight:700;font-size:14px;letter-spacing:.3px}
td b{color:var(--text-dark)}
.tablewrap{overflow-x:auto;border:1px solid var(--border-line);border-radius:var(--radius-lg)}
.tablewrap table{margin:0}
.note{background:var(--light-bg);border-left:4px solid var(--text-muted);padding:16px 20px;border-radius:var(--radius-sm);font-size:15px;color:var(--text-gray);margin:18px 0}
.anchornav{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:8px}
.anchornav a{background:#fff;border:1px solid var(--border-line);color:var(--text-dark);padding:9px 18px;border-radius:20px;font-size:14.5px;font-weight:600;text-decoration:none}
.anchornav a:hover{border-color:var(--primary-blue);color:var(--primary-blue);text-decoration:none}

/* form */
.form{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form .full{grid-column:1/-1}
label{display:block;font-size:14.5px;font-weight:600;color:var(--text-dark);margin-bottom:6px}
label .req{color:#d64545}
input,select,textarea{width:100%;padding:12px 14px;border:1px solid var(--border-line);border-radius:var(--radius-sm);font-size:15px;font-family:inherit;color:var(--text-dark);background:#fff}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary-blue);box-shadow:0 0 0 3px rgba(70,159,225,.15)}
textarea{min-height:130px;resize:vertical}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--text-gray)}
.consent input{width:auto;margin-top:3px}
button.submit{background:var(--primary-blue);color:#fff;border:none;padding:14px 32px;border-radius:var(--radius-md);font-size:16px;font-weight:700;cursor:pointer;font-family:inherit}
button.submit:hover{background:var(--dark-blue)}
.sidecard{background:#fff;border:1px solid var(--border-line);border-radius:var(--radius-lg);padding:24px 26px;margin-bottom:18px;box-shadow:var(--shadow-sm)}
.sidecard h3{font-size:17px;color:var(--navy);border-bottom:2px solid var(--primary-blue);padding-bottom:10px;margin-bottom:14px}
.contactgrid{display:grid;grid-template-columns:1.35fr .65fr;gap:40px;align-items:start}

/* footer */
footer{background:var(--light-bg);border-top:1px solid var(--border-line);padding:34px 0 26px;margin-top:10px}
footer .row{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;font-size:14px;color:var(--text-gray)}
footer .links{display:flex;gap:22px;flex-wrap:wrap}
footer .links a{color:var(--text-gray)}
footer .legal{margin-top:18px;padding-top:16px;border-top:1px solid var(--border-line);font-size:12.5px;color:var(--text-muted);line-height:1.7}
footer .brand{display:flex;align-items:center;gap:12px}
footer .brand img{height:42px;width:auto}

@media (max-width:900px){
  .container,.nav .inner,.hero .inner,.pagehead .inner{padding-left:20px;padding-right:20px}
  .hero .inner,.prod,.contactgrid{grid-template-columns:1fr}
  .hero figure{order:-1}
  .hero figure img{margin:0 auto;max-height:190px}
  .hero h1{font-size:25px} .pagetitle h1{font-size:24px} h2{font-size:25px}
  .claim{font-size:21px} .nav ul{display:none} .form{grid-template-columns:1fr}
  .arrows{flex-direction:row;width:100%;flex-basis:auto}
}

/* rhythm fixes */
h3{margin-top:34px}
.pcard h3,.end h3,.card h3,.sidecard h3,.mv h3,.hero h3,section > .container > h3:first-child{margin-top:0}
.tablewrap + h3, .note + h3, ul.check + h3, .muted + h3{margin-top:34px}
figure figcaption{margin-top:12px}
.prod > div > h3:first-child{margin-top:0}

/* =========================================================
   以下为接入 CMS 后新增：静态版没有 JS，导航在窄屏直接消失；
   这里补回汉堡菜单，并补上表单校验、无障碍跳转等交互态。
   class 名与 main.js 的约定保持一致（#navLinks / .mobile-toggle / .active）。
   ========================================================= */

/* 跳到主要内容：键盘用户可跳过导航 */
.skip-link{position:absolute;top:-48px;left:16px;z-index:100;background:var(--navy);color:#fff;
  padding:10px 18px;border-radius:var(--radius-sm);font-size:14px;transition:top var(--ease)}
.skip-link:focus{top:12px;text-decoration:none}

/* 汉堡按钮：桌面端隐藏 */
.mobile-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:10px;border:none;background:none;cursor:pointer}
.mobile-toggle span{display:block;height:2px;width:100%;background:var(--text-dark);
  border-radius:2px;transition:transform var(--ease),opacity var(--ease)}
.mobile-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.mobile-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.mobile-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.nav ul a.active{color:var(--primary-blue)}
.nav.is-scrolled{box-shadow:var(--shadow-sm)}

/* 表单校验态（main.js 用 .form-group / .form-error 定位） */
.form-group{display:flex;flex-direction:column}
.form-group.has-error input,.form-group.has-error select,.form-group.has-error textarea{
  border-color:#d64545;box-shadow:0 0 0 3px rgba(214,69,69,.12)}
.form-error{min-height:18px;margin-top:5px;font-size:13px;color:#d64545}
.form-success{display:none;background:var(--blue-tint);border:1px solid #c7e2f6;
  border-radius:var(--radius-lg);padding:20px 24px;margin-bottom:20px;color:var(--navy);font-size:15.5px}
.form-success.is-visible{display:block}

@media (max-width:900px){
  .mobile-toggle{display:flex;order:3}
  .nav .inner{height:70px;gap:10px}
  .nav .logo img{height:42px}
  .nav .cta{order:2;padding:8px 14px;font-size:14px}
  .nav .lang{order:1}
  /* 展开时作为整幅面板落在导航栏下方 */
  .nav ul#navLinks.active{display:flex;flex-direction:column;align-items:stretch;gap:0;
    position:absolute;left:0;right:0;top:100%;background:#fff;
    border-bottom:1px solid var(--border-line);box-shadow:var(--shadow-md);
    padding:8px 20px 16px;margin:0;max-height:calc(100vh - 70px);overflow-y:auto}
  .nav ul#navLinks.active li{width:100%;border-bottom:1px solid var(--border-line)}
  .nav ul#navLinks.active li:last-child{border-bottom:none}
  .nav ul#navLinks.active a{display:block;padding:14px 2px;font-size:16px}
}

/* 表格下方的小字备注（原设计写在行内 style 里，抽成 class 便于统一调整） */
.table-note{font-size:14.5px;margin-top:10px}
.table-note b{color:var(--text-dark)}
/* 段落按钮组：原设计同样是行内 style */
.btnrow{display:flex;gap:14px;flex-wrap:wrap;margin-top:24px}
.btnrow .btn-primary{background:var(--primary-blue);color:#fff !important}
.btnrow .btn-ghost{border-color:var(--primary-blue);color:var(--primary-blue) !important}
.btnrow .btn-ghost:hover{background:var(--blue-tint)}
.leadin b{color:var(--text-dark)}
/* 卡片标题下的英文小字（原设计写在行内 style，白名单只放行 class） */
.pcard h3 .muted{display:inline-block;font-size:14px;font-weight:400}
/* 技术页「我们的方法」那组要点限宽，跟原设计一致 */
.check-narrow{max-width:1000px}
.band-spaced{margin-top:26px}
/* 关于页结尾 CTA 居中（原设计写在行内 style） */
.container.center{text-align:center}
.btnrow-center{justify-content:center;margin-top:22px}
/* 联系页：高亮侧栏卡片 + 提交失败提示 */
.sidecard-highlight{background:var(--blue-tint);border-color:#c7e2f6}
.form-error-box{display:none;background:#fdecec;border:1px solid #f5c2c2;color:#a12b2b;
  border-radius:var(--radius-md);padding:14px 18px;margin-bottom:18px;font-size:15px}
.form-error-box.is-visible{display:block}
.form .form-group .form-error{min-height:18px}

/* ReadyPath 区块：正文左、渲染图右；图比产品主图小一号（设计稿 .fig-sm） */
.prod figure.fig-sm{max-width:67%;margin:0 auto}
.prod-tight{margin-bottom:8px}
.leadin{margin-bottom:22px}
figure.fig-sm figcaption{font-size:14px;margin-top:12px}