/* Kerke site design system — scoped under .k3 so Flatsome is untouched */
.k3{--bg:#f6f7f9;--panel:#fff;--ink:#16191d;--ink-2:#454b54;--ink-3:#767d87;
 --line:#dde2e8;--line-2:#c6cdd6;--accent:#1d4e89;--accent-deep:#163a69;--accent-soft:#eaf0f7;
 --cta:#e08a2e;--cta-deep:#c4761f;--warn:#a8421c;--warn-soft:#fbeee8;--graphite:#23272b;
 --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
 max-width:100%;overflow-x:clip;background:var(--bg);color:var(--ink);
 font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif;
 text-align:left}
.k3,.k3 *{box-sizing:border-box}
.k3{--bg:#f6f7f9; --panel:#ffffff; --ink:#16191d; --ink-2:#454b54; --ink-3:#767d87;
    --line:#dde2e8; --line-2:#c6cdd6;
    --accent:#1d4e89; --accent-deep:#163a69; --accent-soft:#eaf0f7;
    --cta:#e08a2e; --cta-deep:#c4761f;
    --warn:#a8421c; --warn-soft:#fbeee8;
    --graphite:#23272b;
    --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;}
.k3 *{box-sizing:border-box}
.k3{-webkit-text-size-adjust:100%}
.k3{margin:0;background:var(--bg);color:var(--ink);
    font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif}
.k3 a{color:var(--accent);text-decoration:none;border-bottom:1px solid rgba(29,78,137,.26)}
.k3 a:hover{border-bottom-color:var(--accent)}
.k3 .wrap{max-width:1320px;margin:0 auto;padding:0 24px}
.k3 header.site{border-bottom:1px solid var(--line);background:rgba(255,255,255,.92);position:sticky;top:0;z-index:40;backdrop-filter:saturate(140%) blur(6px)}
.k3 .bar{display:flex;align-items:center;justify-content:space-between;height:60px}
.k3 .brand{display:flex;align-items:baseline;gap:10px;border:0}
.k3 .brand b{font-size:19px;letter-spacing:.14em;font-weight:700;color:var(--accent)}
.k3 .brand span{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3)}
.k3 .nav{display:flex;gap:22px;font-size:13.5px;align-items:center}
.k3 .nav a{border:0;color:var(--ink-2)}
.k3 .nav a:hover{color:var(--accent)}
.k3 .nav a.q{border:0;background:var(--cta);color:#fff;padding:7px 14px;font-weight:650;font-size:12.5px}
.k3 .nav a.q:hover{background:var(--cta-deep);color:#fff}
/* 760 以下只隐藏正文容器内的页内导航；body.k3 会命中 header 的
   .mobile-nav.nav（汉堡菜单），必须用 div.k3 限定，否则移动端无导航 */
@media(max-width:760px){div.k3 .nav{display:none}}
/* 移动端不播放 hero 背景视频：竖屏容器按 16:9 cover 需放大约 4 倍，
   裁切变形且会出现 YouTube 标题/更多视频浮层，改用海报图 */
@media(max-width:760px){.k3 .hero-bg iframe{display:none!important}}
.k3 .crumbs{font-size:12.5px;color:var(--ink-3);padding:18px 0 0}
.k3 .crumbs a{border:0;color:var(--ink-3)}
.k3 .crumbs span{margin:0 7px;color:var(--line-2)}
.k3 .hero{padding:26px 0 6px;max-width:960px}
.k3 .kicker{font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);font-weight:700;margin:0 0 14px}
.k3 h1{font-size:clamp(30px,4.4vw,46px);line-height:1.1;letter-spacing:-.022em;margin:0 0 18px;font-weight:700;text-wrap:balance}
.k3 .dek{font-size:18.5px;line-height:1.55;color:var(--ink-2);margin:0 0 22px;max-width:840px}
.k3 .byline{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:var(--ink-3);border-top:1px solid var(--line);padding-top:14px}
.k3 .byline b{color:var(--ink-2);font-weight:600}
.k3 .grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:44px;align-items:start;padding:32px 0 72px}
@media(max-width:1040px){.k3 .grid{grid-template-columns:minmax(0,1fr);gap:0}}
.k3 .qa{background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--accent);padding:22px 24px 20px;margin:6px 0 34px}
.k3 .qa h2{font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin:0 0 10px;font-weight:700}
.k3 .qa p{margin:0;font-size:16.5px;line-height:1.62}
.k3 .stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin:0 0 40px}
.k3 .stat{background:var(--panel);padding:14px 14px 12px}
.k3 .stat b{display:block;font-size:24px;letter-spacing:-.02em;line-height:1.15;color:var(--accent-deep)}
.k3 .stat span{display:block;font-size:11.5px;color:var(--ink-3);margin-top:3px;line-height:1.35}
@media(max-width:620px){.k3 .stats{grid-template-columns:repeat(2,1fr)}}
.k3 h2.sec{font-size:25px;line-height:1.25;letter-spacing:-.015em;margin:52px 0 14px;font-weight:700;padding-top:24px;border-top:1px solid var(--line);scroll-margin-top:80px;text-wrap:balance}
.k3 h3{font-size:17px;margin:28px 0 8px;font-weight:650}
.k3 p{margin:0 0 15px}
.k3 ul,.k3 ol{margin:0 0 16px;padding-left:22px}
.k3 li{margin:0 0 8px}
.k3 .lead{font-size:17px;color:var(--ink-2)}
.k3 .tw{margin:22px 0 10px;overflow-x:auto;border:1px solid var(--line);background:var(--panel);-webkit-overflow-scrolling:touch}
.k3 table{border-collapse:collapse;width:100%;font-size:13.6px;min-width:640px}
.k3 caption{caption-side:top;text-align:left;font-size:12.5px;color:var(--ink-3);padding:12px 14px 10px;border-bottom:1px solid var(--line);background:var(--panel)}
.k3 caption b{color:var(--ink-2);font-weight:650}
.k3 th,.k3 td{padding:9px 12px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
.k3 thead th{background:#eef1f5;font-size:11.5px;letter-spacing:.05em;text-transform:uppercase;color:var(--ink-2);font-weight:700;white-space:nowrap;border-bottom:1px solid var(--line-2)}
.k3 tbody tr:nth-child(even){background:#fbfcfd}
.k3 tbody tr:last-child td{border-bottom:0}
.k3 td.num,.k3 th.num{font-family:var(--mono);font-size:12.9px;white-space:nowrap}
.k3 .note{font-size:12.5px;color:var(--ink-3);margin:8px 0 0;line-height:1.5}
.k3 .scrollhint{display:none;font-size:11.5px;color:var(--ink-3);margin:6px 0 0}
@media(max-width:700px){.k3 .scrollhint{display:block}}
.k3 .call{border:1px solid var(--line);background:var(--panel);padding:18px 20px;margin:24px 0;font-size:15px}
.k3 .call.warn{border-color:#eccfc1;background:var(--warn-soft)}
.k3 .call h4{margin:0 0 8px;font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--warn);font-weight:700}
.k3 .call p:last-child{margin-bottom:0}
.k3 .call.rule{border-left:3px solid var(--accent);background:var(--accent-soft)}
.k3 .call.rule h4{color:var(--accent-deep)}
.k3 ol.flow{list-style:none;padding:0;counter-reset:f;margin:20px 0}
.k3 ol.flow li{counter-increment:f;position:relative;padding-left:42px;margin:0 0 16px}
.k3 ol.flow li::before{content:counter(f);position:absolute;left:0;top:1px;width:26px;height:26px;display:grid;place-items:center;font-size:12.5px;font-weight:700;background:var(--accent);color:#fff;border-radius:2px}
.k3 ol.flow b{display:block;font-size:15.5px;margin-bottom:2px}
.k3 .scale{margin:20px 0 8px;border:1px solid var(--line);background:var(--panel);padding:18px 18px 12px}
.k3 .scale svg{display:block;width:100%;height:auto}
.k3 .scale figcaption{font-size:12.5px;color:var(--ink-3);margin-top:10px}
.k3 .banner{margin:26px 0 0;border:1px solid var(--line)}
.k3 .banner img{display:block;width:100%;height:auto}
.k3 figure.ph{margin:26px 0;border:1px solid var(--line);background:var(--panel)}
.k3 figure.ph img{display:block;width:100%;height:auto}
.k3 figure.ph figcaption{font-size:12.5px;color:var(--ink-3);padding:10px 14px;border-top:1px solid var(--line);line-height:1.5}
.k3 .vslot{margin:26px 0;background:var(--graphite);color:#e8ecf0;padding:30px 28px;display:flex;gap:20px;align-items:center}
.k3 .vslot .play{flex:0 0 58px;width:58px;height:58px;border-radius:50%;background:var(--cta);display:grid;place-items:center}
.k3 .vslot .play::after{content:"";display:block;width:0;height:0;border-left:18px solid #fff;border-top:11px solid transparent;border-bottom:11px solid transparent;margin-left:4px}
.k3 .vslot b{display:block;font-size:16px;margin-bottom:4px}
.k3 .vslot p{margin:0;font-size:13px;color:#aeb7c0;line-height:1.55}
.k3 details{border-bottom:1px solid var(--line);padding:14px 0}
.k3 details summary{cursor:pointer;font-weight:650;font-size:16px;list-style:none;display:flex;justify-content:space-between;gap:16px;align-items:baseline}
.k3 details summary::-webkit-details-marker{display:none}
.k3 details summary::after{content:"+";font-weight:400;color:var(--ink-3);font-size:20px;line-height:1}
.k3 details[open] summary::after{content:"–"}
.k3 details p{margin:10px 0 2px;color:var(--ink-2);font-size:15px}
.k3 aside{position:sticky;top:86px;font-size:13px}
@media(max-width:1040px){.k3 aside{display:none}}
.k3 aside h5{font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3);margin:0 0 10px;font-weight:700}
.k3 aside ol{list-style:none;padding:0;margin:0 0 22px;border-left:1px solid var(--line)}
.k3 aside li{margin:0}
.k3 aside a{display:block;padding:5px 0 5px 12px;border:0;color:var(--ink-2);line-height:1.35;margin-left:-1px;border-left:2px solid transparent}
.k3 aside a:hover{color:var(--accent);border-left-color:var(--accent)}
.k3 .sidecard{border:1px solid var(--line);background:var(--panel);padding:16px;font-size:12.8px;line-height:1.5}
.k3 .sidecard b{display:block;font-size:13.5px;margin-bottom:6px}
.k3 .sidecard p{color:var(--ink-3);margin:0 0 12px}
.k3 .btn{display:block;text-align:center;background:var(--cta);color:#fff;border:0;padding:10px 12px;font-size:12.5px;font-weight:650}
.k3 .btn:hover{background:var(--cta-deep);color:#fff}
.k3 .btn.ghost{background:transparent;color:var(--accent);border:1px solid rgba(29,78,137,.4);margin-top:8px}
.k3 .method{background:#eef1f5;border:1px solid var(--line);padding:22px 24px;margin:36px 0 0;font-size:14px;color:var(--ink-2)}
.k3 .method h2{border:0;padding:0;margin:0 0 10px;font-size:17px}
.k3 .method p:last-child{margin-bottom:0}
.k3 .related{margin:40px 0 0;border-top:1px solid var(--line);padding-top:24px}
.k3 .related h2{border:0;margin:0 0 14px;padding:0;font-size:17px}
.k3 .rel-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
@media(max-width:620px){.k3 .rel-grid{grid-template-columns:1fr}}
.k3 .rel{display:block;border:1px solid var(--line);background:var(--panel);padding:12px 14px;font-size:13.5px;line-height:1.4}
.k3 .rel span{display:block;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3);margin-bottom:4px}
.k3 .rel:hover{border-color:var(--line-2);background:#fff}
.k3 .cta{margin:44px 0 0;background:var(--graphite);color:#f2f4f6;padding:28px 30px;display:flex;flex-wrap:wrap;gap:18px;justify-content:space-between;align-items:center}
.k3 .cta b{display:block;font-size:19px;letter-spacing:-.01em;margin-bottom:4px}
.k3 .cta p{margin:0;font-size:13.5px;color:#b8c0c8;max-width:440px}
.k3 .cta .acts{display:flex;gap:10px;flex-wrap:wrap}
.k3 .cta a{border:0;padding:11px 18px;font-size:13px;font-weight:650;background:var(--cta);color:#fff}
.k3 .cta a:hover{background:var(--cta-deep)}
.k3 .cta a.alt{background:transparent;color:#f2f4f6;border:1px solid rgba(242,244,246,.38)}
.k3 footer{border-top:1px solid var(--line);padding:22px 0 40px;font-size:12px;color:var(--ink-3)}
@media print{.k3 header.site,.k3 aside,.k3 .cta,.k3 footer{display:none}.k3 .grid{grid-template-columns:1fr;padding:0}}
.k3 .trustbar{background:var(--accent-deep);color:#dfe7f1;font-size:11.5px;letter-spacing:.04em}
.k3 .trustbar .wrap{display:flex;gap:26px;flex-wrap:wrap;justify-content:space-between;padding-top:7px;padding-bottom:7px}
.k3 .trustbar a{color:#fff;border:0}
.k3 .nav .drop{position:relative}
.k3 .nav .drop>a::after{content:"▾";font-size:9px;margin-left:5px;color:var(--ink-3)}
.k3 .nav .menu{display:none;position:absolute;top:100%;left:-14px;background:#fff;border:1px solid var(--line);min-width:250px;padding:10px 0;box-shadow:0 14px 30px rgba(22,25,29,.10);z-index:60}
.k3 .nav .drop:hover .menu{display:block}
.k3 .nav .menu a{display:block;padding:7px 16px;font-size:13px;border:0;color:var(--ink-2)}
.k3 .nav .menu a:hover{background:var(--accent-soft);color:var(--accent-deep)}
.k3 .nav .menu .grp{font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);padding:10px 16px 4px}
.k3 .hero-home{position:relative;background:var(--graphite);color:#fff;overflow:hidden}
.k3 .hero-home img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.42}
.k3 .hero-home .inner{position:relative;padding:74px 0 62px;max-width:900px}
.k3 .hero-home h1{color:#fff;font-size:clamp(30px,4.6vw,50px)}
.k3 .hero-home .dek{color:#cfd7e0;max-width:700px}
.k3 .hero-home .kicker{color:#f0b06a}
.k3 .hero-acts{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.k3 .hero-acts a{border:0;padding:13px 22px;font-size:13.5px;font-weight:650;background:var(--cta);color:#fff}
.k3 .hero-acts a:hover{background:var(--cta-deep)}
.k3 .hero-acts a.alt{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.44);color:#fff}
.k3 .hero-nums{display:flex;gap:34px;flex-wrap:wrap;margin-top:34px;padding-top:22px;border-top:1px solid rgba(255,255,255,.22)}
.k3 .hero-nums div b{display:block;font-size:23px;color:#fff;letter-spacing:-.02em}
.k3 .hero-nums div span{font-size:11.5px;color:#aeb7c0;letter-spacing:.03em}
.k3 section.band{padding:62px 0}
.k3 section.band.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.k3 .band-head{max-width:780px;margin-bottom:30px}
.k3 .band-head h2{font-size:30px;letter-spacing:-.02em;margin:0 0 10px;font-weight:700}
.k3 .band-head p{margin:0;color:var(--ink-2);font-size:16px}
.k3 .band-head .kicker{margin-bottom:10px}
.k3 .cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media(max-width:900px){.k3 .cards{grid-template-columns:repeat(2,1fr)}}
@media(max-width:620px){.k3 .cards{grid-template-columns:1fr}}
.k3 .card{display:block;background:var(--panel);border:1px solid var(--line);padding:20px 20px 18px;border:0;border-top:3px solid var(--accent);transition:border-color .15s,transform .15s}
.k3 .card:hover{transform:translateY(-2px);border-top-color:var(--cta)}
.k3 .card h3{font-size:16.5px;margin:0 0 8px;font-weight:650;color:var(--ink)}
.k3 .card p{margin:0;font-size:13.5px;color:var(--ink-2);line-height:1.5}
.k3 .card .meta{display:block;margin-top:12px;font-size:11.5px;color:var(--ink-3);letter-spacing:.03em}
.k3 .card .meta b{color:var(--accent-deep);font-weight:650}
.k3 .k3 .plcards{margin:6px 0 22px}
.k3 .k3 .plcard{padding:14px 14px 16px}
.k3 .k3 .plcover{position:relative;display:block;width:100%;padding:0;margin:0 0 12px;border:0;background:none;cursor:pointer}
.k3 .k3 .plcover img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover}
.k3 .k3 .plcover:hover img{opacity:.92}
.k3 .k3 .plplay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.k3 .k3 .plplay::before{content:"";width:54px;height:54px;border-radius:50%;background:rgba(16,20,26,.72);border:2px solid #fff}
.k3 .k3 .plplay::after{content:"";position:absolute;margin-left:5px;width:0;height:0;border-left:16px solid #fff;border-top:10px solid transparent;border-bottom:10px solid transparent}
.k3 .k3 .plbadge{position:absolute;right:8px;bottom:8px;background:rgba(16,20,26,.85);color:#fff;font-size:11.5px;padding:3px 8px;border-radius:3px;letter-spacing:.02em}
.k3 .k3 .plcard iframe{display:block;width:100%;aspect-ratio:16/9;border:0;margin:0 0 12px}
.k3 .k3 .plcard .meta a{color:var(--accent-deep)}
.k3 .modtable{overflow-x:auto;border:1px solid var(--line);background:var(--panel);margin:8px 0 0}
.k3 .filters{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 26px}
.k3 .filters button{cursor:pointer;font:inherit;font-size:12.5px;border:1px solid var(--line-2);background:#fff;color:var(--ink-2);padding:7px 13px}
.k3 .filters button:hover{border-color:var(--accent);color:var(--accent)}
.k3 .filters button.on{background:var(--accent);border-color:var(--accent);color:#fff}
.k3 .hubgroup{margin:0 0 40px}
.k3 .hubgroup h2{font-size:20px;margin:0 0 6px;font-weight:700;letter-spacing:-.01em}
.k3 .hubgroup h2 span{font-size:12px;color:var(--ink-3);font-weight:400;letter-spacing:.04em;margin-left:8px}
.k3 .hubgroup .gdek{font-size:14px;color:var(--ink-2);margin:0 0 16px;max-width:780px}
.k3 .strip{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin:26px 0}
.k3 .strip div{background:#fff;padding:16px 18px}
.k3 .strip b{display:block;font-size:18px;color:var(--accent-deep);letter-spacing:-.01em}
.k3 .strip span{font-size:12px;color:var(--ink-3);line-height:1.4;display:block;margin-top:3px}
@media(max-width:760px){.k3 .strip{grid-template-columns:repeat(2,1fr)}}
.k3 .quoteband{background:var(--accent-soft);border-left:3px solid var(--accent);padding:22px 26px;margin:34px 0;font-size:15.5px;color:var(--ink-2)}
.k3 .quoteband b{color:var(--ink)}
.k3 .faq-band details{max-width:900px}
.k3 footer.site{border-top:1px solid var(--line);background:#fff;padding:38px 0 34px;font-size:12.5px;color:var(--ink-3)}
.k3 footer.site .cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:26px;margin-bottom:26px}
@media(max-width:820px){.k3 footer.site .cols{grid-template-columns:1fr 1fr}}
.k3 footer.site h6{font-size:10.5px;letter-spacing:.15em;text-transform:uppercase;color:var(--ink-2);margin:0 0 10px;font-weight:700}
.k3 footer.site a{display:block;border:0;color:var(--ink-3);padding:3px 0}
.k3 footer.site a:hover{color:var(--accent)}
.k3 footer.site .legal{border-top:1px solid var(--line);padding-top:16px;display:flex;gap:18px;flex-wrap:wrap;justify-content:space-between;font-size:11.5px}
.k3 .form{background:var(--panel);border:1px solid var(--line);padding:26px 28px;max-width:640px}
.k3 .form label{display:block;font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);margin:0 0 6px;font-weight:650}
.k3 .form input,.k3 .form select,.k3 .form textarea{width:100%;font:inherit;font-size:14.5px;padding:10px 12px;border:1px solid var(--line-2);background:#fff;margin:0 0 16px;color:var(--ink)}
.k3 .form select{height:auto;min-height:0;line-height:1.4;padding:10px 34px 10px 12px}
.k3 .form button{font:inherit;font-size:14px;font-weight:650;background:var(--cta);color:#fff;border:0;padding:13px 24px;cursor:pointer}
.k3 .form button:hover{background:var(--cta-deep)}
.k3 .form .fine{font-size:11.5px;color:var(--ink-3);margin:12px 0 0}
.k3 .contactgrid{display:grid;grid-template-columns:1fr 340px;gap:44px;align-items:start;padding:10px 0 40px}
@media(max-width:900px){.k3 .contactgrid{grid-template-columns:1fr}}
.k3 .infocard{border:1px solid var(--line);background:#fff;padding:22px 24px;font-size:14px}
.k3 .infocard b{display:block;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin-bottom:8px}
.k3 .infocard p{margin:0 0 16px}
.k3 .infocard a{font-size:15px}
.k3 .klist{margin:0;padding:0;list-style:none;border-top:1px solid var(--line)}
.k3 .klist li{border-bottom:1px solid var(--line);padding:16px 0}
.k3 .klist a{font-size:16.5px;font-weight:650;border:0}
.k3 .klist p{margin:4px 0 0;font-size:13.5px;color:var(--ink-2)}
.k3 .klist span{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);display:block;margin-bottom:4px}
.k3 .pager{display:flex;justify-content:space-between;gap:16px;border-top:1px solid var(--line);margin-top:44px;padding-top:18px;font-size:13.5px}
.k3 .pager a{border:0}
.k3 .pager span{color:var(--ink-3);font-size:11px;letter-spacing:.1em;text-transform:uppercase;display:block;margin-bottom:3px}
.k3 .k3 .k3-toc{display:flex;flex-wrap:wrap;gap:4px 16px;align-items:baseline;max-width:1120px;margin:22px auto 0;padding:12px 24px;background:#fff;border:1px solid #e3e7ee;border-radius:10px;font-size:14px}
.k3 .k3 .k3-toc b{color:#1d4e89;font-size:12px;letter-spacing:.05em;text-transform:uppercase}
.k3 .k3 .k3-toc a{color:#1d4e89;text-decoration:none;border-bottom:1px solid #c9d6e6}
.k3 .k3 .k3-toc a:hover{color:#e08a2e;border-bottom-color:#e08a2e}
.k3 .k3 .k3-more{max-width:1120px;margin:0 auto;padding:34px 24px;border-top:1px solid #e3e7ee}
.k3 .k3 .k3-more h2{font-size:22px;color:#1d4e89;margin:0 0 14px}
.k3 .k3 .k3-more p{max-width:760px;color:#3c4652;line-height:1.65;font-size:15px;margin:0 0 14px}
.k3 .k3 .k3-more .k3-rel{font-size:14px}
.k3 .k3 .k3-more .k3-rel a{color:#1d4e89;text-decoration:none;border-bottom:1px solid #c9d6e6;margin-right:6px}
.k3 .k3 .k3-more .k3-rel a:hover{color:#e08a2e;border-bottom-color:#e08a2e}
.k3 .k3 .k3-fig{margin:0 0 18px}
.k3 .k3 .k3-fig img{width:100%;max-width:820px;height:auto;border-radius:10px;border:1px solid #e3e7ee;display:block}
.k3 .k3 .k3-fig figcaption{font-size:13px;color:#767d87;margin-top:6px}
@media(max-width:720px){.k3 .k3 .k3-toc{margin:14px 16px 0;padding:10px 14px}.k3 .k3 .k3-more{padding:26px 16px}}
.k3 .k3 .appmedia{display:grid;grid-template-columns:1.55fr 1fr;gap:20px;align-items:start;margin:0 0 30px}
@media(max-width:900px){.k3 .k3 .appmedia{grid-template-columns:1fr}}
.k3 .k3 .case-photo{margin:0;padding:14px;background:#fff;border-radius:10px;box-shadow:0 12px 32px rgba(10,20,35,.10);align-self:center}
.k3 .k3 .case-photo img{display:block;width:100%;max-height:460px;object-fit:contain;border-radius:6px;background:#fff}
.k3 .k3 .case-photo figcaption{font-size:12.5px;color:#767d87;text-align:center;padding-top:10px;line-height:1.5}
.k3 .k3 .mslider{position:relative;background:#fff;border-radius:10px;overflow:hidden;box-shadow:0 12px 32px rgba(10,20,35,.10)}
.k3 .k3 .ms-frame{position:relative;aspect-ratio:16/10;overflow:hidden;background:#eef1f5}
.k3 .k3 .ms-slide{position:absolute;inset:0;opacity:0;transition:opacity .3s;pointer-events:none}
.k3 .k3 .ms-slide.on{opacity:1;pointer-events:auto}
.k3 .k3 .ms-slide img{width:100%;height:100%;object-fit:cover;display:block}
.k3 .k3 .ms-video{position:relative;width:100%;height:100%}
.k3 .k3 .ms-video iframe{position:absolute;inset:0;width:100%;height:100%;border:0;display:block}
.k3 .k3 .ms-play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:62px;height:62px;border-radius:50%;border:0;background:rgba(16,26,40,.72);color:#fff;font-size:20px;cursor:pointer;transition:background .15s}
.k3 .k3 .ms-play:hover{background:#e08a2e}
.k3 .k3 .ms-cap{position:absolute;left:0;right:0;bottom:0;background:linear-gradient(transparent,rgba(10,16,26,.80));color:#fff;font-size:12px;padding:24px 14px 9px;pointer-events:none}
.k3 .k3 .ms-nav{position:absolute;top:50%;transform:translateY(-50%);z-index:2;width:36px;height:36px;border:0;border-radius:50%;background:rgba(16,26,40,.55);color:#fff;font-size:20px;line-height:1;cursor:pointer}
.k3 .k3 .ms-nav:hover{background:#e08a2e}
.k3 .k3 .ms-nav.prev{left:10px}
.k3 .k3 .ms-nav.next{right:10px}
.k3 .k3 .ms-dots{position:absolute;left:0;right:0;bottom:34px;z-index:2;display:flex;justify-content:center;gap:7px}
.k3 .k3 .ms-dot{width:9px;height:9px;border-radius:50%;border:0;padding:0;background:rgba(255,255,255,.55);cursor:pointer}
.k3 .k3 .ms-dot.on{background:#e08a2e;transform:scale(1.25)}
.k3 .k3 .appmedia-text .qa{margin:0 0 16px}
.k3 .k3 .appmedia-text .qa h2{margin:0 0 10px;font-size:19px}
.k3 .k3 .appmedia-text .note{font-size:11.5px;color:#767d87;margin:12px 0 0}
.k3 .k3 .appmedia-text .stats{grid-template-columns:repeat(2,1fr)}

/* ============================================================
   Kerke ad landing pages  /lp/  — all rules already scoped to .k3.lp
   ============================================================ */
.k3.lp{background:#fff}
.k3.lp .lp-bar{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.k3.lp .lp-bar .wrap{display:flex;align-items:center;justify-content:space-between;height:58px;gap:16px}
.k3.lp .lp-logo{border:0;display:flex;align-items:baseline;gap:9px}
.k3.lp .lp-logo b{font-size:19px;letter-spacing:.14em;color:var(--accent);font-weight:700}
.k3.lp .lp-logo span{font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3)}
.k3.lp .lp-contact{font-size:12.5px;color:var(--ink-2);display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.k3.lp .lp-contact a{border:0;color:var(--accent);font-weight:650}
@media(max-width:640px){.k3.lp .lp-contact span.hide-s{display:none}}

.k3.lp .lp-hero{background:linear-gradient(160deg,#1b3f6e 0%,#16324f 55%,#23272b 100%);color:#fff;padding:52px 0 56px;position:relative;overflow:hidden}
.k3.lp .lp-hero::after{content:"";position:absolute;right:-180px;top:-120px;width:520px;height:520px;background:radial-gradient(circle,rgba(224,138,46,.22),transparent 62%)}
.k3.lp .lp-hero .wrap{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 392px;gap:48px;align-items:start}
@media(max-width:980px){.k3.lp .lp-hero .wrap{grid-template-columns:1fr;gap:28px}}
.k3.lp .lp-kicker{font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:#f0b06a;font-weight:700;margin:0 0 14px}
.k3.lp .lp-hero h1{font-size:clamp(28px,3.6vw,42px);line-height:1.1;color:#fff;margin:0 0 16px;letter-spacing:-.02em}
.k3.lp .lp-sub{font-size:17px;line-height:1.55;color:#cfd7e0;margin:0 0 22px;max-width:600px}
.k3.lp .lp-bullets{list-style:none;padding:0;margin:0 0 26px;max-width:600px}
.k3.lp .lp-bullets li{position:relative;padding-left:26px;margin:0 0 9px;font-size:14.5px;color:#e6ebf1}
.k3.lp .lp-bullets li::before{content:"";position:absolute;left:0;top:7px;width:11px;height:11px;border:2px solid var(--cta);border-radius:50%}
.k3.lp .lp-hero-nums{display:flex;gap:28px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.2);padding-top:18px;max-width:600px}
.k3.lp .lp-hero-nums b{display:block;font-size:20px;color:#fff;letter-spacing:-.01em}
.k3.lp .lp-hero-nums span{font-size:11px;color:#a9b4c0}

.k3.lp .lp-formcard{background:#fff;color:var(--ink);padding:24px 24px 20px;box-shadow:0 18px 44px rgba(10,20,35,.28);border-top:4px solid var(--cta)}
.k3.lp .lp-formcard h2{font-size:18px;margin:0 0 4px;letter-spacing:-.01em}
.k3.lp .lp-formcard p.lp-fhint{font-size:12px;color:var(--ink-3);margin:0 0 16px}
.k3.lp .lp-form label{display:block;font-size:10.5px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);font-weight:700;margin:0 0 5px}
.k3.lp .lp-form input,.k3.lp .lp-form select,.k3.lp .lp-form textarea{width:100%;font:inherit;font-size:14px;padding:9px 11px;border:1px solid var(--line-2);background:#fff;color:var(--ink);margin:0 0 12px;border-radius:2px}
/* select: Flatsome 全局给 select 固定 height:2.507em，与本处 9px 垂直内边距叠加会把选中文字裁掉一截；
   放开高度、用行高撑开，并补一个下拉箭头（Flatsome 的箭头被上面 background:#fff 重置掉了） */
.k3.lp .lp-form select{height:auto;line-height:1.35;padding:9px 34px 9px 11px;-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23505860' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 11px center;background-size:16px 16px}
.k3.lp .lp-form .row2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.k3.lp .lp-form button{width:100%;font:inherit;font-size:14.5px;font-weight:700;background:var(--cta);color:#fff;border:0;padding:13px 18px;cursor:pointer}
.k3.lp .lp-form button:hover{background:var(--cta-deep)}
.k3.lp .lp-form .fine{font-size:10.5px;color:var(--ink-3);margin:10px 0 0;line-height:1.45}
.k3.lp .lp-form .err{color:#b3261e;font-size:12px;margin:8px 0 0;display:none}
.k3.lp .lp-ok{display:none;background:#eef6ef;border:1px solid #c4dfc8;padding:14px 16px;font-size:13.5px;color:#1e5b2c;margin:0 0 12px}

.k3.lp .lp-proof{background:#fff;border-bottom:1px solid var(--line)}
.k3.lp .lp-proof .wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line)}
.k3.lp .lp-proof div{background:#fff;padding:20px 18px}
.k3.lp .lp-proof b{display:block;font-size:21px;color:var(--accent-deep);letter-spacing:-.01em}
.k3.lp .lp-proof span{display:block;font-size:11.5px;color:var(--ink-3);margin-top:3px;line-height:1.4}
@media(max-width:760px){.k3.lp .lp-proof .wrap{grid-template-columns:repeat(2,1fr)}}

.k3.lp .lp-sec{padding:52px 0}
.k3.lp .lp-sec.alt{background:#f7f8fa;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.k3.lp .lp-sec h2{font-size:26px;letter-spacing:-.02em;margin:0 0 8px;line-height:1.2}
.k3.lp .lp-sec .lede{font-size:15.5px;color:var(--ink-2);margin:0 0 24px;max-width:720px}
.k3.lp .lp-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:860px){.k3.lp .lp-cols{grid-template-columns:1fr}}
.k3.lp .lp-box{background:#fff;border:1px solid var(--line);border-top:3px solid var(--accent);padding:20px}
.k3.lp .lp-box h3{font-size:15.5px;margin:0 0 6px}
.k3.lp .lp-box p{font-size:13.5px;color:var(--ink-2);margin:0}
.k3.lp .lp-check{list-style:none;padding:0;margin:18px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:6px 22px}
@media(max-width:720px){.k3.lp .lp-check{grid-template-columns:1fr}}
.k3.lp .lp-check li{font-size:14px;color:var(--ink-2);padding-left:22px;position:relative;margin:0}
.k3.lp .lp-check li::before{content:"✓";position:absolute;left:0;top:0;color:var(--cta);font-weight:700}
.k3.lp .lp-faq details{border-bottom:1px solid var(--line);padding:14px 0}
.k3.lp .lp-faq details summary{font-weight:650;font-size:15.5px}
.k3.lp .lp-cta{background:var(--graphite);color:#fff;padding:40px 0}
.k3.lp .lp-cta .wrap{display:flex;justify-content:space-between;align-items:center;gap:22px;flex-wrap:wrap}
.k3.lp .lp-cta h2{font-size:24px;margin:0 0 6px;color:#fff}
.k3.lp .lp-cta p{margin:0;color:#b9c1c9;font-size:13.5px;max-width:520px}
.k3.lp .lp-cta a.btn-big{background:var(--cta);color:#fff;border:0;padding:14px 26px;font-weight:700;font-size:14px}
.k3.lp .lp-foot{background:#fff;border-top:1px solid var(--line);padding:22px 0 90px;font-size:11.5px;color:var(--ink-3)}
@media(min-width:900px){.k3.lp .lp-foot{padding-bottom:28px}}
.k3.lp .lp-sticky{position:fixed;left:0;right:0;bottom:0;z-index:120;display:none;background:#fff;border-top:1px solid var(--line);box-shadow:0 -8px 24px rgba(15,25,40,.12)}
.k3.lp .lp-sticky a{flex:1;text-align:center;padding:13px 8px;font-size:13px;font-weight:700;border:0}
.k3.lp .lp-sticky a.q{background:var(--cta);color:#fff}
.k3.lp .lp-sticky a.w{color:var(--accent);border-left:1px solid var(--line)}
.k3.lp .lp-sticky a.t{color:var(--ink-2);border-left:1px solid var(--line)}
@media(max-width:900px){.k3.lp .lp-sticky{display:flex}}
.k3.lp .lp-table{overflow-x:auto;border:1px solid var(--line);background:#fff}

/* TOC strip (satisfies Rank Math TOC check + useful anchors) */
.k3 .lp-toc{display:flex;flex-wrap:wrap;gap:4px 18px;align-items:baseline;max-width:1120px;margin:18px auto 0;padding:12px 24px;background:#fff;border:1px solid #e3e7ee;border-radius:10px;font-size:14px}
.k3 .lp-toc b{color:#1d4e89;font-size:13px;letter-spacing:.04em;text-transform:uppercase}
.k3 .lp-toc a{color:#1d4e89;text-decoration:none;border-bottom:1px solid #c9d6e6}
.k3 .lp-toc a:hover{border-bottom-color:#e08a2e;color:#e08a2e}

/* in-content image (rich media + keyword alt) */
.k3 .lp-fig{max-width:1120px;margin:26px auto;padding:0 24px}
.k3 .lp-fig img{width:100%;height:auto;border-radius:12px;border:1px solid #e3e7ee;display:block}
.k3 .lp-fig figcaption{font-size:13px;color:#767d87;margin-top:8px;text-align:center}

/* related internal links */
.k3 .lp-rel{background:#fff;border-top:1px solid #e3e7ee;padding:22px 0}
.k3 .lp-rel .wrap{max-width:1120px;padding:0 24px;display:flex;flex-wrap:wrap;gap:6px 24px;align-items:baseline}
.k3 .lp-rel b{color:#767d87;font-size:12px;letter-spacing:.06em;text-transform:uppercase}
.k3 .lp-rel ul{display:flex;flex-wrap:wrap;gap:6px 20px;list-style:none;margin:0;padding:0}
.k3 .lp-rel a{color:#1d4e89;font-size:14px;text-decoration:none;border-bottom:1px solid #c9d6e6}
.k3 .lp-rel a:hover{color:#e08a2e;border-bottom-color:#e08a2e}
@media(max-width:720px){.k3 .lp-toc{margin:14px 16px 0;padding:10px 14px}.k3 .lp-fig{padding:0 16px}}
/* Projects page: hero video facade + aside enquiry form */
.k3 .vhero{padding:0}
.k3 .vhero .plcover{margin:0}
.k3 .sidecard .kside input,.k3 .sidecard .kside textarea{display:block;width:100%;box-sizing:border-box;font:inherit;font-size:12.8px;padding:8px 10px;border:1px solid var(--line-2);background:#fff;color:var(--ink-2,#333);margin:0 0 8px}
.k3 .sidecard .kside textarea{resize:vertical}
.k3 .sidecard .kside ::placeholder{color:#8a919c}
.k3 .sidecard .kside .btn{margin-top:2px}
.k3 .sidecard .kside .ok{color:var(--accent-deep);font-size:12.5px;margin:8px 0 0;font-weight:600}
.k3 .vhero iframe{display:block;width:100%;aspect-ratio:16/9;border:0;margin:0}
/* Certificates page */
.k3 .certgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px;margin:8px 0 26px}
.k3 .certcard{border:1px solid var(--line);background:var(--panel);padding:14px}
.k3 .certcard img{display:block;width:100%;height:auto;border:1px solid var(--line);background:#fff}
.k3 .certcard a:hover img{opacity:.94}
.k3 .certcard h3{font-size:15.5px;margin:12px 0 8px;line-height:1.35}
.k3 .certcard .cm{font-size:12.5px;color:var(--ink-3);margin:0 0 4px;line-height:1.45}
.k3 .certcard .cm b{color:var(--ink-2,#3a3f47)}
.k3 .certcard .dl{margin:10px 0 0;font-size:12.5px}
/* Home hero video background */
.k3 .hero-bg{position:absolute;inset:0;overflow:hidden}
.k3 .hero-bg img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.42}
.k3 .hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(23,28,36,.30),rgba(23,28,36,.55));pointer-events:none}
.k3 .hero-bg iframe{position:absolute;border:0;pointer-events:none;transform:scale(1.02)}

/* about page: inline factory video replaces the still figure */
.k3 .about-video{margin:0 0 22px}
.k3 .about-video .plcover{margin:0;border-radius:10px;overflow:hidden;border:1px solid #e3e7ee}
.k3 .about-video figcaption{font-size:13px;line-height:1.6;color:#767d87;margin:8px 0 0}

/* company news: listing cards + article hero poster */
.k3 .newsg{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:0 0 26px}
.k3 .ncard{display:flex;flex-direction:column;border:1px solid #e3e7ee;border-radius:10px;overflow:hidden;background:#fff;text-decoration:none;color:inherit}
.k3 .ncard:hover{border-color:#c6cdd8;box-shadow:0 4px 14px rgba(23,28,36,.07)}
.k3 .ncard .nimg{aspect-ratio:4/5;display:flex;align-items:center;justify-content:center;padding:14px;background:#fff;border-bottom:1px solid #eef1f5}
.k3 .ncard .nimg img{max-width:100%;max-height:100%;object-fit:contain;display:block}
.k3 .ncard .nbody{padding:12px 14px 16px;display:flex;flex-direction:column;gap:6px;flex:1}
.k3 .ncard .ndate{font-size:12px;font-weight:600;color:#a2541e;letter-spacing:.02em}
.k3 .ncard .nbody b{font-size:15px;line-height:1.35;color:#12161d}
.k3 .ncard .nbody p{font-size:13px;line-height:1.55;color:#5c6470;margin:0;flex:1}
.k3 .ncard .nmore{font-size:12.5px;font-weight:600;color:#155fa8;margin-top:2px}
.k3 .nhero{margin:0 0 22px;max-width:460px}
.k3 .nhero img{width:100%;height:auto;border-radius:10px;border:1px solid #e3e7ee;display:block}
.k3 .nhero figcaption{font-size:13px;line-height:1.6;color:#767d87;margin-top:8px}
@media(max-width:1080px){.k3 .newsg{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.k3 .newsg{grid-template-columns:1fr}}
.k3 .nhero-wide{max-width:720px}

/* Certificates grid (homepage #certifications) */
.k3 .k3-certs{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-top:26px}
.k3 .kcert{display:block;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px;color:inherit;border-bottom:1px solid var(--line);transition:box-shadow .15s,transform .15s}
.k3 .kcert:hover{box-shadow:0 8px 22px rgba(23,28,36,.10);transform:translateY(-2px)}
.k3 .kcert img{width:100%;height:auto;aspect-ratio:439/622;object-fit:cover;object-position:top;border-radius:8px;border:1px solid #edf0f3;display:block}
.k3 .kcert b{display:block;margin:10px 0 4px;font-size:15px;color:var(--ink)}
.k3 .kcert span{display:block;font-size:12.5px;color:var(--ink-3);line-height:1.5}
@media(max-width:1080px){.k3 .k3-certs{grid-template-columns:repeat(3,1fr)}}
@media(max-width:560px){.k3 .k3-certs{grid-template-columns:repeat(2,1fr)}}

/* Factory video split section (homepage #factory-video) */
.k3 .k3-split{display:grid;grid-template-columns:1.15fr 1fr;gap:30px;align-items:start;margin-top:26px}
.k3 .k3-split .plcover{position:relative;display:block;width:100%;padding:0;margin:0;border:0;background:none;cursor:pointer;border-radius:12px;overflow:hidden;border:1px solid #e3e7ee}
.k3 .k3-split .plcover img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;transition:opacity .15s}
.k3 .k3-split .plcover:hover img{opacity:.92}
.k3 .k3-split .plplay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;pointer-events:none}
.k3 .k3-split .plplay::before{content:"";width:56px;height:56px;border-radius:50%;background:rgba(16,20,26,.72);border:2px solid #fff}
.k3 .k3-split .plplay::after{content:"";position:absolute;margin-left:6px;width:0;height:0;border-left:17px solid #fff;border-top:10px solid transparent;border-bottom:10px solid transparent}
.k3 .k3-split .plcover iframe{display:block;width:100%;aspect-ratio:16/9;border:0}
.k3 .split-cap{font-size:13px;line-height:1.6;color:var(--ink-3);margin:10px 2px 0}
.k3 .k3-split-body p{max-width:640px;color:#3c4652;line-height:1.65;font-size:15px;margin:0 0 14px}
.k3 .k3-split-body ul{list-style:none;margin:0 0 16px;padding:0}
.k3 .k3-split-body li{position:relative;padding:7px 0 7px 26px;font-size:15px;color:#3c4652;line-height:1.55;border-bottom:1px dashed var(--line)}
.k3 .k3-split-body li::before{content:"";position:absolute;left:4px;top:14px;width:9px;height:9px;border-radius:2px;background:var(--cta)}
.k3 .k3-split-body li b{color:var(--ink)}
.k3 .k3-split-body .k3-rel{font-size:14px}
@media(max-width:1080px){.k3 .k3-split{grid-template-columns:1fr;gap:22px}}

/* Distinguishing badges on certificate cards (same-issuer ISO template) */
.k3 .kcert{position:relative}
.k3 .kcert::before{content:attr(data-badge);position:absolute;top:22px;left:22px;z-index:2;padding:4px 9px;border-radius:5px;font-size:10.5px;font-weight:700;letter-spacing:.06em;color:#fff;background:var(--accent);box-shadow:0 2px 6px rgba(16,20,26,.25)}
.k3 .kcert.kc-blue::before{background:#1d4e89}
.k3 .kcert.kc-green::before{background:#2e7d4f}
.k3 .kcert.kc-orange::before{background:#c4761f}
.k3 .kcert.kc-dark::before{background:#23272b}
.k3 .kcert.kc-blue{border-top:3px solid #1d4e89}
.k3 .kcert.kc-green{border-top:3px solid #2e7d4f}
.k3 .kcert.kc-orange{border-top:3px solid #c4761f}
.k3 .kcert.kc-dark{border-top:3px solid #23272b}