:root{
  --jade:#2EA3DC;
  --jade-deep:#0B2E4E;
  --ink:#0F2C46;
  --gold:#3FB8D3;
  --gold-deep:#1690B8;
  --bg:#F6FAFD;
  --white:#fff;
  --muted:#5B6E80;
  --line:#E2EBF3;
  --shadow:0 8px 24px rgba(10,46,70,.07);
  --radius:16px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased;}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.container{width:min(1140px,92vw);margin:0 auto}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 28px;border-radius:999px;font-weight:600;font-size:15px;cursor:pointer;border:none;transition:.25s;}
.btn-primary{background:linear-gradient(135deg,#34AFE6,#1E8FCE);color:#fff;box-shadow:0 8px 22px rgba(46,163,220,.32)}
.btn-primary:hover{background:var(--jade-deep);transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1.5px solid rgba(255,255,255,.7)}
.btn-ghost:hover{background:rgba(255,255,255,.22)}
.btn-gold{background:linear-gradient(135deg,#35C97B,#1FA86B);color:#fff;border:none;box-shadow:0 8px 22px rgba(53,201,123,.30)}
.btn-gold:hover{transform:translateY(-2px)}
.btn-lg{padding:15px 32px;font-size:16px}
.eyebrow{color:var(--jade);font-weight:700;letter-spacing:2.5px;font-size:12.5px;text-transform:uppercase}
h2.section-title{font-size:clamp(27px,3.5vw,40px);margin:10px 0 8px;line-height:1.22;color:var(--ink)}
.section-sub{color:var(--muted);max-width:720px;margin:0 auto 38px;font-size:16px}
.section{padding:96px 0}
.section.tight{padding:60px 0}
.center{text-align:center;padding:96px 0;border-top:1px solid var(--line)}
.section-head{text-align:center;max-width:760px;margin:0 auto 40px}
.section-head .lead{color:var(--muted);font-size:16px;margin-top:8px}

/* NAV */
header.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:var(--ink)}
.logo img{height:34px;width:auto}
.logo small{color:var(--gold);font-weight:700;letter-spacing:1px;font-size:12px}
.nav-links{display:flex;gap:22px;align-items:center;font-size:14.5px;font-weight:500;list-style:none}
.nav-links > li{position:relative}
.nav-links a{position:relative;color:#2c4039;padding:6px 0;display:block}
.nav-links > li > a::after{content:"";position:absolute;left:0;bottom:-4px;width:0;height:2px;background:var(--jade);transition:.25s}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}
.nav-links a.active{color:var(--jade)}
.menu-toggle{display:none;font-size:24px;background:none;border:none;cursor:pointer;color:var(--ink)}

/* HERO */
.hero{position:relative;overflow:hidden;min-height:calc(560px + 2cm);display:flex;align-items:center;background:url('../img/hero.jpg') center 10%/cover no-repeat}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(94deg,rgba(11,46,78,.86) 0%,rgba(11,46,78,.62) 30%,rgba(11,46,78,.22) 62%,rgba(46,163,220,.12) 100%)}
.hero .container{position:relative;z-index:1}
.hero h1{font-size:clamp(30px,4.6vw,56px);line-height:1.12;margin:14px 0;color:#fff;text-shadow:0 2px 18px rgba(0,0,0,.3);font-weight:800}
.hero h1 .hl{color:#58D6C6}
.hero p.lead{font-size:17.5px;color:rgba(255,255,255,.94);margin-bottom:24px;max-width:640px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.16);color:#fff;padding:7px 14px;border-radius:999px;font-size:13px;font-weight:600;margin-bottom:12px;backdrop-filter:blur(4px);border:1px solid rgba(255,255,255,.28)}
.hero-chips{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.hero-chips span{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);color:#fff;padding:9px 16px;border-radius:999px;font-size:13.5px;font-weight:600;backdrop-filter:blur(4px)}
.hero-chips .dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#58D6C6}

/* STATS */
.stats{background:var(--ink);color:#fff;padding:32px 0 48px;display:flex;flex-direction:column;justify-content:center;min-height:calc(100vh - 69px - 560px - 2cm)}
.stats .container{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat .num{font-size:clamp(28px,3.6vw,46px);font-weight:800;color:#fff;line-height:1.15}
.stat .num .unit{font-size:18px;color:#58D6C6;margin-left:2px;font-weight:700}
.stat .label{margin-top:4px;color:#9DB8CF;font-size:14px}

/* GRID HELPERS */
.grid{display:grid;gap:24px}
.cols-2{grid-template-columns:repeat(2,1fr)}
.cols-3{grid-template-columns:repeat(3,1fr)}
.cols-4{grid-template-columns:repeat(4,1fr)}

/* CARDS */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:0 6px 20px rgba(10,46,70,.05);transition:.3s;position:relative;overflow:hidden}
.card:hover{transform:translateY(-5px);border-color:var(--jade);box-shadow:0 14px 34px rgba(46,163,220,.14)}
.card .ic{width:48px;height:48px;border-radius:12px;background:rgba(46,163,220,.1);color:var(--jade);display:grid;place-items:center;font-size:24px;float:left;margin:0 14px 12px 0}
.card h3{font-size:22px;line-height:48px;margin-bottom:12px;color:var(--ink)}
.card p{color:var(--muted);font-size:17px;line-height:1.75;clear:both}
/* 卡片段落文字左对齐（覆盖外层 .center 的居中） */
.card,.card h3,.card p,.cust-card,.cust-card h3,.cust-card p,.news-card,.news-card h3,.news-card p{text-align:left}
/* 新闻卡片内的分类标签保持居中显示 */
.news-card .tag{display:block;width:max-content;margin-left:auto;margin-right:auto}
.card .chip{display:inline-block;margin-top:14px;font-size:12px;font-weight:600;color:var(--jade);background:rgba(46,163,220,.1);padding:5px 12px;border-radius:999px;clear:both}
/* 三张核心产品卡片底部标签水平对齐：绝对定位到卡片底部同一水平线，文字区预留空间防重叠 */
.cards.align-chips .card{padding-bottom:82px}
.cards.align-chips .card .chip{position:absolute;left:50%;bottom:30px;transform:translateX(-50%);margin-top:0;white-space:nowrap}
.cust-card .ico{float:left;margin:0 14px 12px 0}
.cust-card h3{font-size:22px;line-height:54px;margin-bottom:12px}
.cust-card p{font-size:16.5px;line-height:1.7;clear:both}
.cust-card .more{clear:both}
.cust-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:30px;box-shadow:var(--shadow);transition:.3s;display:block}
.cust-card:hover{transform:translateY(-6px);border-color:var(--jade)}
.cust-card .ico{width:54px;height:54px;border-radius:14px;background:linear-gradient(135deg,var(--jade),var(--jade-deep));color:#fff;display:grid;place-items:center;margin-bottom:16px}
.cust-card h3{font-size:20px;margin-bottom:8px}
.cust-card p{color:var(--muted);font-size:14.5px}
.cust-card .more{display:inline-block;margin-top:14px;color:var(--jade);font-weight:700;font-size:14px}
/* 三类客户卡片底部链接垂直对齐：绝对定位到卡片底部同一水平线（水平保持居中），文字区预留空间防重叠 */
.grid.cols-3 .cust-card{position:relative;padding-bottom:64px}
.grid.cols-3 .cust-card .more{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);margin-top:0;white-space:nowrap}

/* 屏幕底部「继续浏览」动态箭头：页面未滚动到底时显示，到达底部后淡出 */
.scroll-hint{position:fixed;left:50%;bottom:26px;transform:translateX(-50%) translateY(14px);display:flex;align-items:center;gap:9px;padding:9px 17px;border-radius:999px;background:rgba(46,163,220,.5);color:#fff;font-size:13.5px;font-weight:600;letter-spacing:.04em;box-shadow:0 10px 26px rgba(10,46,70,.22);cursor:pointer;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);opacity:0;pointer-events:none;transition:opacity .35s ease,transform .35s ease,background .25s ease;z-index:990}
.scroll-hint.show{opacity:1;pointer-events:auto;transform:translateX(-50%) translateY(0)}
.scroll-hint:hover{background:rgba(46,163,220,.8)}
.scroll-hint .tri{width:18px;height:11px;flex:none;animation:scrollHintBounce 1.5s ease-in-out infinite}
@keyframes scrollHintBounce{0%,100%{transform:translateY(-2px)}50%{transform:translateY(4px)}}
@media (prefers-reduced-motion:reduce){.scroll-hint .tri{animation:none}}

/* SPEC */
.spec{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;margin-top:40px}
.spec-head{background:linear-gradient(135deg,var(--jade),var(--jade-deep));color:#fff;padding:18px 26px;font-size:18px;font-weight:700}
.spec table{width:100%;border-collapse:collapse;font-size:14.5px}
.spec td,.spec th{padding:13px 22px;border-bottom:1px solid var(--line);text-align:left}
.spec th{background:#F0F6FC;color:var(--jade-deep);font-weight:700;width:200px}
.spec tr:last-child td,.spec tr:last-child th{border-bottom:none}
.spec .sec-title{background:#F8FBFE;font-weight:700;color:var(--ink);padding:13px 22px;border-bottom:1px solid var(--line)}

/* TECH */
.tech{background:linear-gradient(180deg,var(--bg),#EDF4FB)}
.tech-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.tech-list{display:flex;flex-direction:column;gap:18px}
.tech-item{display:flex;gap:16px;background:var(--white);border:1px solid var(--line);border-radius:14px;padding:18px;box-shadow:var(--shadow)}
.tech-item .n{width:38px;height:38px;flex:0 0 38px;border-radius:10px;background:var(--jade);color:#fff;display:grid;place-items:center;font-weight:800}
.tech-item h4{font-size:16px;margin-bottom:2px}
.tech-item p{color:var(--muted);font-size:14px}
.tech-visual{border-radius:var(--radius);background:radial-gradient(400px 400px at 30% 20%,rgba(88,214,198,.22),transparent),linear-gradient(160deg,#0F2C46,#2EA3DC);color:#fff;padding:40px;box-shadow:var(--shadow)}
.tech-visual h3{font-size:24px;margin-bottom:12px}
.tech-visual ul{list-style:none;display:flex;flex-direction:column;gap:12px;margin-top:10px}
.tech-visual li{display:flex;gap:10px;align-items:flex-start}
.tech-visual li::before{content:"◆";color:var(--gold);font-size:12px;margin-top:5px}

/* PLATFORM */
.platform{background:var(--white)}
.platform-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.pcard{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:22px;transition:.25s}
.pcard:hover{border-color:var(--jade);transform:translateY(-4px)}
.pcard .pn{width:34px;height:34px;border-radius:9px;background:var(--jade);color:#fff;display:grid;place-items:center;font-weight:800;margin-bottom:12px}
.pcard h4{font-size:16px;margin-bottom:6px}
.pcard p{font-size:13.5px;color:var(--muted)}
.terminal{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:30px}
.terminal span{font-size:13px;font-weight:600;padding:7px 16px;border-radius:999px;background:rgba(46,163,220,.08);color:var(--jade-deep)}

/* FLOW */
.flow{display:grid;grid-template-columns:repeat(8,1fr);gap:14px}
.flow-wrap{overflow-x:auto;padding-bottom:10px}
.flow-step{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:20px 14px;position:relative;text-align:center;box-shadow:var(--shadow)}
.flow-step .fs-n{width:36px;height:36px;border-radius:50%;background:var(--jade);color:#fff;display:grid;place-items:center;font-weight:800;margin:0 auto 12px}
.flow-step h4{font-size:15px;margin-bottom:6px}
.flow-step p{font-size:12.5px;color:var(--muted)}

/* B2B */
.b2b{background:var(--ink);color:#fff}
.b2b-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:start;margin-top:38px}
.b2b-feature{background:#0A2E52;border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:22px 26px;margin-bottom:16px}
.b2b-feature h4{color:var(--gold);font-size:17px;margin-bottom:8px;display:flex;align-items:center;gap:10px}
.b2b-feature p{color:#A8BDD8;font-size:14.5px;line-height:1.65}
.b2b-case{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);padding:28px}
.b2b-case h3{color:var(--gold);font-size:19px;margin-bottom:14px}
.b2b-case .case-stat{display:flex;justify-content:space-between;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.06)}
.b2b-case .case-stat:last-child{border-bottom:none}
.b2b-case .cs-label{color:#A8BDD8;font-size:13.5px}
.b2b-case .cs-val{color:#fff;font-size:15px;font-weight:700}
.b2b-modules{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:20px}
.b2b-mod{background:rgba(46,163,220,.12);border:1px solid rgba(46,163,220,.2);border-radius:10px;padding:14px 16px;font-size:13.5px;color:#D6E4F5}
.b2b-mod strong{color:#fff;font-size:14px;display:block;margin-bottom:4px}

/* ZONE */
.zone{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.zcard{background:var(--white);border-radius:var(--radius);padding:26px 22px;border:1px solid var(--line);text-align:center;transition:.3s}
.zcard:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--gold)}
.zcard .zi{width:60px;height:60px;margin:0 auto 14px;border-radius:50%;background:linear-gradient(135deg,var(--gold),var(--gold-deep));color:#fff;display:grid;place-items:center;font-size:26px}
.zcard h4{font-size:17px;margin-bottom:6px}
.zcard p{color:var(--muted);font-size:13.5px}

/* WHY */
.why{background:var(--ink);color:#fff}
.why .cards{margin-top:10px}
.why .card{background:#0A2E52;border:1px solid rgba(255,255,255,.08);color:#eaf3ef}
.why .card h3{color:#fff}
.why .card p{color:#A8BDD8}
.cmp{margin-top:46px;background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.cmp table{width:100%;border-collapse:collapse;font-size:14px}
.cmp th,.cmp td{padding:13px 18px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
.cmp thead th{background:var(--jade-deep);color:#fff;font-size:15px}
.cmp td:first-child{font-weight:700;color:var(--ink);width:22%}
.cmp tr:last-child td{border-bottom:none}
.cmp .us{background:rgba(46,163,220,.06)}

/* ABOUT */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.about p{color:var(--muted);margin-bottom:14px;font-size:15.5px}
.about .quote{border-left:4px solid var(--gold);padding:10px 0 10px 18px;color:var(--ink);font-style:italic;font-size:16px;margin:16px 0}
.mvv{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin:30px 0}
.mvv .m{background:#fff;border:1px solid var(--line);border-radius:16px;padding:0 26px 26px;box-shadow:var(--shadow);transition:.25s;overflow:hidden}
.mvv .m:hover{transform:translateY(-4px);border-color:var(--jade)}
.mvv .m .m-img{margin:0 -26px 20px;height:190px;overflow:hidden}
.mvv .m .m-img img{width:100%;height:100%;object-fit:cover;display:block}
.mvv .m h4{font-size:20.5px;color:var(--jade-deep);margin-bottom:10px;letter-spacing:2px;font-weight:700}
.mvv .m p{font-size:17.5px;color:var(--muted);margin:0;line-height:1.8}
.about-entity{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:24px 28px;box-shadow:var(--shadow)}
.about-entity h3{font-size:18px;margin-bottom:12px;color:var(--jade-deep)}
.about-entity table{width:100%;border-collapse:collapse;font-size:14px}
.about-entity td{padding:8px 4px;border-bottom:1px solid var(--line);color:var(--muted)}
.about-entity td:first-child{font-weight:600;color:var(--ink);width:140px}
.about-entity tr:last-child td{border-bottom:none}
.cert-badge{display:inline-block;margin-top:14px;background:rgba(46,163,220,.08);color:var(--jade-deep);padding:6px 14px;border-radius:999px;font-size:12px;font-weight:600}

/* TIMELINE */
.timeline{position:relative;max-width:860px;margin:34px auto 0;padding-left:24px}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:var(--line)}
.tl-item{position:relative;padding:0 0 24px 28px}
.tl-item::before{content:"";position:absolute;left:-21px;top:4px;width:14px;height:14px;border-radius:50%;background:var(--jade);border:3px solid #fff;box-shadow:0 0 0 2px var(--jade)}
.tl-year{font-weight:800;color:var(--jade-deep);font-size:16px}
.tl-item p{color:var(--muted);font-size:14.5px;margin-top:2px}
.tl-item.future .tl-year{color:var(--gold)}
.tl-item.future::before{background:var(--gold);box-shadow:0 0 0 2px var(--gold)}

/* CERTS */
.cert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;text-align:center}
.cert{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:22px 16px;box-shadow:var(--shadow)}
.cert .ci{font-size:30px;margin-bottom:8px}
.cert h4{font-size:15px;color:var(--ink)}
.cert p{font-size:13px;color:var(--muted);margin-top:4px}

/* GALLERY */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.gallery img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:14px;box-shadow:var(--shadow);transition:.3s}
.gallery img:hover{transform:scale(1.02)}

/* FAQ */
.faq-list{max-width:840px;margin:0 auto;text-align:left}
.faq-item{border:1px solid var(--line);border-radius:14px;margin-bottom:12px;background:var(--white);overflow:hidden}
.faq-q{width:100%;text-align:left;background:none;border:none;padding:18px 22px;font-size:15.5px;font-weight:600;cursor:pointer;color:var(--ink);display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq-q .ic{color:var(--jade);font-size:22px;transition:.3s;flex-shrink:0}
.faq-item.open .faq-q .ic{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:.35s;color:var(--muted);font-size:14.5px;line-height:1.7}
.faq-item.open .faq-a{max-height:280px;padding:0 22px 18px}

/* CONTACT */
.contact{background:linear-gradient(160deg,#2EA3DC,#0B2E4E);color:#fff}
.contact .container{display:grid;grid-template-columns:1.3fr .7fr;gap:40px;align-items:center}
.contact h2{font-size:clamp(26px,3.2vw,36px)}
.contact p{color:rgba(255,255,255,.88);margin:10px 0 22px;font-size:15.5px}
.contact .btn-primary{background:#fff;color:var(--jade-deep)}
.contact .btn-primary:hover{background:#EDF4FB}
.qr{background:#fff;border-radius:18px;padding:18px;text-align:center;color:var(--ink);box-shadow:var(--shadow);max-width:230px;margin-left:auto}
.qr .box{width:180px;height:180px;margin:0 auto 10px;border-radius:10px;background:repeating-linear-gradient(45deg,#0F2C46 0 8px,#fff 8px 16px);display:grid;place-items:center;color:#fff;font-size:12px;text-align:center;padding:10px}
.qr .qr-img{width:180px;height:180px;margin:0 auto 10px;border-radius:10px;object-fit:cover;display:block;border:1px solid var(--line)}
.qr strong{display:block}
.qr small{display:block;color:var(--muted);font-size:12px;margin-top:4px}

/* VALUES / TRUST / DARK BAND */
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.value{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:0 30px 30px;box-shadow:var(--shadow);overflow:hidden}
.value-img{margin:0 -30px 22px;height:200px;overflow:hidden}
.value-img img{width:100%;height:100%;object-fit:cover;display:block}
.value h3{font-size:22px;margin-bottom:10px;color:var(--jade-deep)}
.value p{color:var(--muted);font-size:16px;line-height:1.7}
.value.blue{border-top:4px solid var(--jade)}
.value.green{border-top:4px solid var(--gold)}
.trust{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;background:var(--ink);border-radius:18px;padding:28px;color:#fff;margin-top:10px}
.trust > div{text-align:center}
.trust b{display:block;color:var(--gold);font-size:16px;margin-bottom:4px}
.trust .muted{color:#A8BDD8;font-size:13px}
.dark-band{background:linear-gradient(135deg,var(--jade),var(--jade-deep));color:#fff;border-radius:18px;padding:34px;text-align:center}
.dark-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px)}
.dark-band p{color:rgba(255,255,255,.9);max-width:680px;margin:10px auto 0}

/* TAGS / FLAGS / NOTES */
.tag{display:inline-block;font-size:12px;font-weight:600;padding:4px 11px;border-radius:999px;background:rgba(46,163,220,.1);color:var(--jade-deep);margin-bottom:8px}
.tag.blue{background:rgba(46,163,220,.12)}
.tag.green{background:rgba(88,214,198,.15);color:var(--gold-deep)}
.placeholder-flag{display:inline-block;font-size:12px;font-weight:600;color:#9a6a00;background:#FFF4D6;padding:3px 10px;border-radius:999px;border:1px solid #F1D98A;margin-left:6px}
.compliance-note{display:flex;gap:12px;background:#EEF3F9;border:1px solid var(--line);border-left:4px solid var(--gold);border-radius:12px;padding:14px 18px;font-size:14px;color:var(--muted);margin-top:20px}
.compliance-note span{color:var(--gold);font-weight:800;font-size:18px;flex-shrink:0;line-height:1.2}
.badge-ai{display:inline-block;font-size:12px;font-weight:600;padding:4px 11px;border-radius:999px;border:1px solid var(--line);background:rgba(46,163,220,.08);color:var(--jade-deep)}

/* FEAT / ROADMAP */
.feat{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--line)}
.feat:last-child{border-bottom:none}
.feat .dot{width:26px;height:26px;flex:0 0 26px;border-radius:50%;background:var(--gold);color:#fff;display:grid;place-items:center;font-size:14px;font-weight:800;margin-top:2px}
.feat h4{font-size:15.5px;margin-bottom:2px}
.feat p{font-size:14px;color:var(--muted)}
.roadmap{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.phase{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:var(--shadow)}
.phase .pno{font-size:12.5px;font-weight:700;color:var(--gold);margin-bottom:8px}
.phase h4{font-size:16px;margin-bottom:6px}
.phase p{font-size:13.5px;color:var(--muted)}

/* AI CARD (doctor) */
.ai-card{background:linear-gradient(160deg,#1E8FCE,#2EA3DC);color:#fff;border-radius:16px;padding:26px;box-shadow:var(--shadow)}
.ai-card .sample{background:rgba(255,255,255,.12);border-radius:10px;padding:12px;margin-bottom:10px;font-size:14px;line-height:1.7}
.ai-card .note{font-size:12px;opacity:.7;margin-top:12px}

/* NEWS */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{background:var(--white);border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow);transition:.3s;display:block}
.news-card:hover{transform:translateY(-5px);border-color:var(--jade)}
.news-thumb{height:150px;overflow:hidden;position:relative;background:linear-gradient(135deg,var(--jade),var(--jade-deep))}
.news-thumb img{width:100%;height:100%;object-fit:cover;display:block}
.news-body{padding:18px 20px}
.news-body .meta{font-size:12.5px;color:var(--muted);margin-bottom:8px}
.news-body h3{font-size:16.5px;line-height:1.4}
.news-body .news-sum{font-size:13.5px;line-height:1.6;color:var(--muted);margin:8px 0 0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.article{max-width:820px;margin:0 auto}
.article h1{font-size:clamp(24px,3vw,34px);margin:14px 0 8px}
.article p{margin-bottom:16px;font-size:15.5px;color:var(--muted)}
.article h2{font-size:24px;margin:22px 0 12px;color:var(--ink)}
.article h3{font-size:20px;margin:18px 0 10px;color:var(--jade-deep)}
.article ul,.article ol{margin:14px 0 16px 22px}
.article li{margin:6px 0}
.article img{max-width:100%;border-radius:8px;margin:14px 0}

/* FORM */
.form{background:var(--white);border:1px solid var(--line);border-radius:18px;padding:28px;box-shadow:var(--shadow);max-width:540px}
.form .field{margin-bottom:16px}
.form label{display:block;font-size:13.5px;font-weight:600;margin-bottom:6px;color:var(--ink)}
.form input,.form select,.form textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;font-size:14.5px;font-family:inherit;background:#fff;color:var(--ink)}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--jade)}
.form .success{display:none;margin-top:12px;padding:12px 16px;background:rgba(88,214,198,.12);border:1px solid var(--gold);border-radius:10px;color:#3f6b2a;font-size:14px;font-weight:600}
.form.submitted .success{display:block}

/* FOOTER */
footer{background:#062845;color:#A8BDD8;padding:44px 0 24px;font-size:14px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}
footer h4{color:#fff;font-size:15px;margin-bottom:12px}
footer a{color:#A8BDD8;display:block;margin-bottom:8px}
footer a:hover{color:#fff}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:28px;padding-top:18px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:13px}
.foot-bottom a{display:inline;margin:0 8px}
.foot-legal{margin-top:18px;display:flex;flex-direction:column;gap:7px;font-size:13px;color:#7E96B3;line-height:1.6}
.foot-legal .beian a{color:#7E96B3;text-decoration:none;transition:color .2s}
.foot-legal .beian a:hover{color:var(--gold)}

/* PRIVACY */
.privacy{background:#EEF3F9;font-size:13px;color:var(--muted);padding:40px 0}
.privacy .container{max-width:920px}
.privacy h3{color:var(--ink);font-size:18px;margin-bottom:12px}
.privacy p{margin-bottom:10px;line-height:1.7}

/* REVEAL */
.reveal{opacity:0;transform:translateY(32px) scale(.95);transition:opacity .7s cubic-bezier(.22,1,.36,1),transform .7s cubic-bezier(.22,1,.36,1)}
.reveal.in{opacity:1;transform:none}

@media(max-width:900px){
  .tech-grid,.about-grid,.b2b-grid,.contact .container{grid-template-columns:1fr}
  .cards,.platform-grid,.zone,.b2b-modules,.cert-grid,.gallery,.mvv,.values,.cols-2,.cols-3,.cols-4,.roadmap,.trust,.news-grid{grid-template-columns:1fr 1fr}
  .stats .container,.flow{grid-template-columns:1fr 1fr}
  .foot-grid{grid-template-columns:1fr 1fr}
  .nav-links{position:fixed;inset:68px 0 auto 0;background:#fff;flex-direction:column;padding:20px;gap:8px;box-shadow:var(--shadow);transform:translateY(-130%);transition:.3s;border-bottom:1px solid var(--line);z-index:60;align-items:stretch}
  .nav-links.open{transform:none}
  .menu-toggle{display:block}
  .hero{min-height:540px}
  .cmp{overflow-x:auto}
}
@media(max-width:560px){
  .cards,.platform-grid,.zone,.b2b-modules,.cert-grid,.gallery,.mvv,.values,.cols-2,.cols-3,.cols-4,.roadmap,.trust,.news-grid,.flow,.stats .container{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr}
}

/* ===== V3 新增组件 ===== */

/* 可穿戴双图（核心产品页） */
.wearable-imgs{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:8px 0 14px}
.wearable-imgs img{width:100%;aspect-ratio:1/1;object-fit:cover;border-radius:12px;border:1px solid var(--line)}

/* 手机画面（医患私域页） */
.mobile-shots{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.mobile-shots img{width:100%;border-radius:18px;box-shadow:var(--shadow);border:1px solid var(--line)}

/* 商务合作卡片（联系页） */
.coop-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
.coop-item{display:flex;gap:12px;align-items:flex-start;background:var(--white);border:1px solid var(--line);border-radius:14px;padding:16px 18px;box-shadow:var(--shadow)}
.coop-item .coop-ic{width:42px;height:42px;flex:0 0 42px;border-radius:11px;background:rgba(46,163,220,.1);color:var(--jade);display:grid;place-items:center;font-size:20px}
.coop-item h4{font-size:15px;margin-bottom:4px;color:var(--ink)}
.coop-item p{font-size:13px;color:var(--muted);line-height:1.5}

/* 通用说明小字 */
.note{font-size:12.5px;color:var(--muted);line-height:1.5}

/* 四步流程 */
.flow.four{grid-template-columns:repeat(4,1fr)}

/* 响应式：双图 / 手机 / 合作 */
@media(max-width:900px){
  .coop-grid,.wearable-imgs,.mobile-shots{grid-template-columns:1fr 1fr}
  .flow.four{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .coop-grid,.wearable-imgs,.mobile-shots,.flow.four{grid-template-columns:1fr}
  .section,.center{padding:60px 0}
}

/* ===== V3.1 本轮改版组件 ===== */
/* 关于页 Hero（科技大楼背景 + logo 叠加） */
.about-hero{position:relative;overflow:hidden;min-height:540px;display:flex;align-items:center;background:url('../img/about-building.jpg') center 40%/cover no-repeat;color:#fff}
.about-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(11,46,78,.9) 0%,rgba(11,46,78,.6) 44%,rgba(46,163,220,.25) 100%)}
.about-hero .container{position:relative;z-index:1}
.about-hero h1{font-size:clamp(28px,3.8vw,46px);line-height:1.18;margin:14px 0 12px;color:#fff;text-shadow:0 2px 18px rgba(0,0,0,.3)}
.about-hero p.lead{font-size:17px;color:rgba(255,255,255,.93);max-width:620px}
.about-hero .hero-badge{background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3)}

/* 关于页 · 公司介绍数据亮点（安瑜风格） */
.about-intro{max-width:860px;margin:0 auto}
.about-hl{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;max-width:860px;margin:26px auto 0}
.ab-hl-item{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:22px;text-align:center;transition:.25s}
.ab-hl-item:hover{border-color:var(--jade);transform:translateY(-4px)}
.ab-hl-item b{display:block;font-size:30px;font-weight:800;color:var(--jade);line-height:1.1}
.ab-hl-item span{display:block;margin-top:8px;color:var(--muted);font-size:14px}

/* 核心产品 · 统一带图卡片 */
.prod-imgs{margin:6px 0 16px;border-radius:14px;overflow:hidden;border:1px solid var(--line);background:#F2F6FB;clear:both}
.prod-imgs img{width:100%;aspect-ratio:4/3;object-fit:cover;display:block}
.prod-imgs.two{display:grid;grid-template-columns:1fr;gap:10px}
.prod-imgs.two img{aspect-ratio:4/3}

/* 联系页 · 生图背景hero */
.cv-hero{position:relative;overflow:hidden;min-height:340px;display:flex;align-items:center;background:url('../img/contact-hero.jpg') center 40%/cover no-repeat;color:#fff;padding:90px 0}
.cv-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(11,46,78,.9) 0%,rgba(11,46,78,.6) 45%,rgba(46,163,220,.35) 100%)}
.cv-hero .container{position:relative;z-index:1}
.cv-hero p.lead{font-size:17px;color:rgba(255,255,255,.94);max-width:620px}

/* 联系页 · 商务合作 + 预约演示 双卡片 */
.cv-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.cv-card{background:var(--white);border:1px solid var(--line);border-radius:18px;padding:34px 30px;box-shadow:0 10px 30px rgba(10,46,70,.08);transition:.3s;position:relative;overflow:hidden}
.cv-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--jade),#58D6C6)}
.cv-card:nth-child(2)::before{background:linear-gradient(90deg,var(--gold),#58D6C6)}
.cv-card:hover{transform:translateY(-4px);box-shadow:0 16px 40px rgba(46,163,220,.15)}
.cv-card h2{font-size:22px;margin-bottom:6px;color:var(--ink)}
@media(max-width:900px){.cv-grid{grid-template-columns:1fr}}

/* 联系我们 · 信息卡 */
.cv-card-info{background:linear-gradient(160deg,#0F2C46,#0B2E4E);border:none;color:#fff}
.cv-card-info h2{color:#fff}
.cv-card-info::before{background:linear-gradient(90deg,#58D6C6,var(--jade))}
.cci-grid{display:flex;flex-direction:column;gap:22px;margin-top:14px}
.cci-item{display:flex;gap:18px;align-items:flex-start;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:20px 22px;transition:.25s}
.cci-item:hover{background:rgba(255,255,255,.1);transform:translateX(4px)}
.cci-ic{flex:none;width:52px;height:52px;border-radius:14px;background:rgba(46,163,220,.22);color:#7FCBF0;display:grid;place-items:center;font-size:24px}
.cci-ic.green{background:rgba(53,201,123,.2);color:#6FE3A8}
.cci-ic.cyan{background:rgba(88,214,198,.18);color:#58D6C6}
.cci-item h4{font-size:14px;letter-spacing:2px;color:#9FB6CC;margin-bottom:6px}
.cci-item p{font-size:16px;color:rgba(255,255,255,.92);margin:0;line-height:1.6}
.cci-item .cci-big{font-size:24px;font-weight:800;color:#fff;letter-spacing:.5px}
.cci-item .cci-big small{font-size:13px;font-weight:400;color:#9FB6CC;margin-left:6px}

/* 医生端沟通平台 · 利益点卡 */
.pb-card{text-align:left}
.pb-num{font-size:34px;font-weight:800;line-height:1;margin:16px 0 8px;background:linear-gradient(135deg,var(--jade),#58D6C6);-webkit-background-clip:text;background-clip:text;color:transparent}
.pb-card h3{clear:none;line-height:1.3}

/* 关于页 · 公司介绍（大气重排） */
.intro-sec{background:var(--white)}
.intro-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.intro-title{font-size:clamp(28px,3.6vw,42px);font-weight:800;line-height:1.25;color:var(--ink);margin:10px 0 14px}
.intro-sub{font-size:17px;line-height:1.75;color:var(--jade);font-weight:700;margin-bottom:18px}
.intro-body p{color:var(--muted);line-height:1.9;font-size:16px}
.intro-body p.lead{color:var(--ink);font-size:16.5px;font-weight:600;margin-bottom:14px}
.intro-keys{display:flex;flex-wrap:wrap;gap:10px 14px;align-items:center;margin-top:26px;font-size:14px;font-weight:700;color:var(--jade-deep)}
.intro-keys span{background:rgba(46,163,220,.1);border:1px solid rgba(46,163,220,.2);padding:8px 16px;border-radius:999px}
.intro-keys i{color:#58D6C6;font-style:normal}
.intro-visual{position:relative}
.intro-visual img{width:100%;height:100%;min-height:420px;object-fit:cover;border-radius:20px;box-shadow:0 24px 64px rgba(10,46,70,.2)}
.intro-visual::after{content:"";position:absolute;inset:0;border-radius:20px;background:linear-gradient(180deg,rgba(46,163,220,.08),transparent)}
@media(max-width:900px){.intro-grid{grid-template-columns:1fr}}
@media(max-width:560px){.intro-visual img{min-height:280px}}

/* 核心产品 · 产品矩阵 */
.prod-matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:8px}
.pm-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.3s}
.pm-card:hover{transform:translateY(-6px);border-color:var(--jade)}
.pm-img{aspect-ratio:1/1;background:#F2F6FB;overflow:hidden}
.pm-img img{width:100%;height:100%;object-fit:cover;display:block}
.pm-card h4{font-size:18px;margin:16px 18px 6px;color:var(--ink)}
.pm-card p{font-size:14px;color:var(--muted);margin:0 18px 18px;line-height:1.7}
@media(max-width:900px){.prod-matrix{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.prod-matrix{grid-template-columns:1fr}}

/* 个人页卡片配图 */
.pc-img{margin:-30px -30px 18px;height:180px;overflow:hidden}
.pc-img img{width:100%;height:100%;object-fit:cover;display:block}
/* 核心产品页：主动健康平台四步闭环 2×2 布局 */
.platform-grid.g4{grid-template-columns:repeat(2,1fr)}
@media(max-width:560px){.platform-grid.g4{grid-template-columns:1fr}}