:root{--paper:#F6F5F1;--ink:#15181A;--ink2:#545859;--ink3:#8B8F90;--line:#DFDCD3;--line2:#CBC8BE;--orange:#DE4A10;--dark:#141619;--white:#fff;--art:#EDEBE4}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;background:var(--paper);color:var(--ink);font-size:15px;line-height:1.75;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.mono{font-family:"JetBrains Mono","SFMono-Regular",Consolas,monospace}
.wrap{max-width:1280px;margin:0 auto;padding:0 40px}
@media(max-width:760px){.wrap{padding:0 20px}}

/* header */
.topbar{background:var(--dark);color:#9AA0A5;font-size:12px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:38px}
.topbar b{color:#fff;font-weight:500;font-family:"JetBrains Mono",monospace;letter-spacing:.5px}
.topbar .lang span{margin-left:16px;cursor:pointer}
.topbar .lang .on{color:#fff}
.hmain{display:flex;align-items:center;gap:26px;padding:20px 0}
.brand{display:flex;align-items:center;gap:12px}
.brand svg{width:42px;height:42px}
.brand .bn{font-size:26px;font-weight:700;letter-spacing:2px;line-height:1.2}
.brand .be{font-family:"JetBrains Mono",monospace;font-size:9.5px;color:var(--ink3);letter-spacing:2.2px;margin-top:2px}
.slogan{border-left:1px solid var(--line2);padding-left:22px;font-size:16.5px;font-weight:600;line-height:1.5}
.slogan span{display:block;font-size:12px;font-weight:400;color:var(--ink3);letter-spacing:.5px}
.hotline{margin-left:auto;text-align:right}
.hotline .hl1{font-size:11px;color:var(--ink3);letter-spacing:1px}
.hotline .hl2{font-size:21px;font-weight:700;font-family:"JetBrains Mono",monospace;line-height:1.3}
.hotline .hl3{font-size:11px;color:var(--ink3);font-family:"JetBrains Mono",monospace}
.mainnav{background:var(--ink);position:sticky;top:0;z-index:90}
.mainnav .wrap{display:flex;align-items:center}
.mainnav a,.mainnav .ni{color:#C6C9CB;font-size:14.5px;padding:0 22px;line-height:52px;display:block;position:relative;cursor:pointer;white-space:nowrap}
.mainnav a:hover,.mainnav .ni:hover,.mainnav a.on,.mainnav .ni.on{color:#fff}
.mainnav a.on:after,.mainnav .ni.on:after{content:"";position:absolute;left:22px;right:22px;bottom:0;height:2px;background:var(--orange)}
.mainnav .dd{position:relative}
.mainnav .dd .menu{position:absolute;top:52px;left:0;min-width:152px;background:#fff;box-shadow:0 14px 34px rgba(20,22,25,.16);display:none;padding:6px 0;z-index:99}
.mainnav .dd:hover .menu{display:block}
.mainnav .dd .menu a{color:var(--ink2);line-height:40px;padding:0 20px;font-size:13.5px}
.mainnav .dd .menu a:hover{color:var(--orange);background:var(--paper)}
.mainnav .caret{font-size:9px;margin-left:5px;color:#797D81}
.mainnav .sp{flex:1}
.mainnav .navbtn{background:var(--orange);color:#fff;font-size:13.5px;padding:0 20px;line-height:34px;margin:9px 0;border-radius:2px}
.mainnav .navbtn:hover{background:#C3400C}
@media(max-width:980px){
  .slogan,.hotline .hl3{display:none}.hmain{padding:14px 0;gap:14px}
  .mainnav .wrap{overflow-x:auto;scrollbar-width:none}
  .mainnav a,.mainnav .ni{padding:0 13px;font-size:13.5px}
  .mainnav .dd .menu{display:none!important}
}

/* hero */
.hero{padding:64px 0 58px;border-bottom:1px solid var(--line)}
.hero .in{display:grid;grid-template-columns:1.02fr .98fr;gap:52px;align-items:center}
@media(max-width:980px){.hero .in{grid-template-columns:1fr;gap:32px}.hero{padding:40px 0}}
.hero .eb{display:flex;align-items:center;gap:10px;font-family:"JetBrains Mono",monospace;font-size:11px;letter-spacing:2px;color:var(--orange);font-weight:600;margin-bottom:18px}
.hero .eb:before{content:"";width:8px;height:8px;background:var(--orange)}
.hero h1{font-size:50px;line-height:1.22;font-weight:700;letter-spacing:1px}
.hero h1 em{font-style:normal;color:var(--orange)}
.hero .sub{font-size:15px;color:var(--ink2);line-height:1.95;margin-top:20px;max-width:520px}
.hero .acts{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap}
.hero .kpis{display:flex;gap:36px;margin-top:34px;border-top:1px solid var(--line);padding-top:20px;flex-wrap:wrap}
.hero .kpis .v{font-family:"JetBrains Mono",monospace;font-size:24px;font-weight:700;line-height:1.2}
.hero .kpis .l{font-size:11.5px;color:var(--ink3)}
.hero .collage{display:grid;grid-template-columns:1fr}
.hero .collage figure{background:#fff;border:1px solid var(--line);padding:10px;position:relative}
.hero .collage img{aspect-ratio:16/10;object-fit:cover;width:100%;background:var(--art);display:block}
.hero .collage figcaption{display:flex;justify-content:space-between;font-family:"JetBrains Mono",monospace;font-size:9.5px;color:var(--ink3);margin-top:7px;letter-spacing:.5px}
.hero .collage figure:nth-child(1){grid-row:span 2}
.hero .collage figure:nth-child(1) img{aspect-ratio:auto;height:100%;min-height:280px}
@media(max-width:560px){.hero h1{font-size:34px}.hero .collage{grid-template-columns:1fr 1fr}.hero .collage figure:nth-child(1){grid-row:span 1}.hero .collage figure:nth-child(1) img{min-height:0;aspect-ratio:4/3}}

/* buttons */
.btn{display:inline-block;font-size:14px;padding:12px 26px;border-radius:2px;cursor:pointer;border:1px solid transparent;font-family:inherit;transition:.2s;text-align:center}
.btn.dark{background:var(--ink);color:#fff}.btn.dark:hover{background:#000}
.btn.orange{background:var(--orange);color:#fff}.btn.orange:hover{filter:brightness(1.08)}
.btn.ghost{border-color:var(--line2);color:var(--ink);background:transparent}.btn.ghost:hover{border-color:var(--ink)}
.btn.sm{padding:9px 18px;font-size:13px}

/* sections */
.sec{padding:72px 0}
.sec.grey{background:#EFEDE7}
.sec.dark{background:var(--dark);color:#fff}
.sechead{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px}
.sechead .eb{display:flex;align-items:center;gap:10px;font-family:"JetBrains Mono",monospace;font-size:11px;letter-spacing:2px;color:var(--orange);font-weight:600;margin-bottom:11px}
.sechead .eb:before{content:"";width:8px;height:8px;background:var(--orange)}
.sechead h2{font-size:30px;font-weight:700;letter-spacing:.5px;line-height:1.25}
.sechead .sub{font-size:13.5px;color:var(--ink3);margin-top:8px}
.sechead .more{font-size:13px;color:var(--ink2);white-space:nowrap;border-bottom:1px solid var(--line2);padding-bottom:3px}
.sechead .more:hover{color:var(--orange);border-color:var(--orange)}
@media(max-width:760px){.sec{padding:50px 0}.sechead h2{font-size:23px}}

/* 优势 */
.adv{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.adv .it{background:#fff;border:1px solid var(--line);padding:28px 24px;transition:.25s}
.adv .it:hover{border-color:var(--ink);transform:translateY(-3px)}
.adv .no{font-family:"JetBrains Mono",monospace;font-size:12px;color:var(--orange)}
.adv .it h3{font-size:17.5px;margin:12px 0 8px;font-weight:600}
.adv .it p{font-size:12.5px;color:var(--ink3);line-height:1.85}
@media(max-width:980px){.adv{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.adv{grid-template-columns:1fr}}

/* 产品 */
.pdlayout{display:grid;grid-template-columns:1fr 254px;gap:26px;align-items:start}
@media(max-width:980px){.pdlayout{grid-template-columns:1fr}}
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px;align-items:center}
.tabs button{font-size:13.5px;padding:10px 19px;background:#fff;border:1px solid var(--line);color:var(--ink2);cursor:pointer;border-radius:2px;font-family:inherit;transition:.2s}
.tabs button:hover{border-color:var(--ink)}
.tabs button.on{background:var(--ink);border-color:var(--ink);color:#fff}
.pgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:640px){.pgrid{grid-template-columns:repeat(2,1fr);gap:12px}}
.pcard{background:#fff;border:1px solid var(--line);transition:.25s;display:block}
.pcard:hover{border-color:var(--ink);transform:translateY(-3px);box-shadow:0 12px 26px rgba(20,22,25,.07)}
.pcard .art{background:var(--art);overflow:hidden;aspect-ratio:4/3}
.pcard .art img{width:100%;height:100%;object-fit:cover;transition:.4s}
.pcard:hover .art img{transform:scale(1.04)}
.pcard .bd{padding:13px 15px 15px;display:flex;align-items:center;justify-content:space-between;gap:8px}
.pcard .md{font-family:"JetBrains Mono",monospace;font-weight:700;font-size:14.5px}
.pcard .nm{font-size:11.5px;color:var(--ink3);margin-top:1px;min-height:17px}
.pcard .go{font-size:11.5px;color:var(--orange);white-space:nowrap}
.sidecard{background:var(--dark);color:#fff;padding:26px 24px;position:sticky;top:72px}
.sidecard .s1{font-size:11.5px;color:#8B8F90;letter-spacing:1px}
.sidecard .s2{font-size:22px;font-weight:700;font-family:"JetBrains Mono",monospace;margin:6px 0 2px}
.sidecard .s3{font-size:11.5px;color:#8B8F90;font-family:"JetBrains Mono",monospace}
.sidecard hr{border:0;border-top:1px solid #2A2D31;margin:18px 0}
.sidecard .btn{display:block;background:var(--orange);color:#fff;font-size:13.5px;padding:10px 0;margin-top:8px}
.sidecard .btn.ghost{background:transparent;border:1px solid #383C41;margin-top:10px}

/* 流程 */
.flow{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
@media(max-width:980px){.flow{grid-template-columns:repeat(3,1fr)}}
@media(max-width:560px){.flow{grid-template-columns:repeat(2,1fr)}}
.flow .st{background:#fff;border:1px solid var(--line);padding:20px 16px;position:relative;transition:.2s}
.flow .st:hover{border-color:var(--orange)}
.flow .st .n{font-family:"JetBrains Mono",monospace;font-size:22px;font-weight:700;color:var(--orange)}
.flow .st h4{font-size:15px;margin:9px 0 4px;font-weight:600}
.flow .st p{font-size:11.5px;color:var(--ink3);line-height:1.7}
.flow .st:after{content:"→";position:absolute;right:-11px;top:45%;color:var(--line2);font-size:13px}
.flow .st:last-child:after{display:none}

/* 关于 */
.about{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
@media(max-width:980px){.about{grid-template-columns:1fr;gap:28px}}
.about p{font-size:14.5px;color:var(--ink2);line-height:2;margin-bottom:14px;text-align:justify}
.about .lead{font-size:16.5px;color:var(--ink);line-height:1.9;font-weight:500}
.cap-list{border-top:1px solid var(--line2);margin-top:6px}
.cap-list .row{display:flex;gap:16px;padding:15px 0;border-bottom:1px solid var(--line);align-items:baseline}
.cap-list .k{font-family:"JetBrains Mono",monospace;font-size:11px;color:var(--orange);width:34px;flex:none}
.cap-list .t{font-size:14px;font-weight:600;width:110px;flex:none}
.cap-list .d{font-size:12.5px;color:var(--ink3)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);margin-top:26px;border-top:1px solid var(--line2);padding-top:20px}
.stats .v{font-family:"JetBrains Mono",monospace;font-size:25px;font-weight:700}
.stats .v em{font-style:normal;font-size:12px;color:var(--ink3);margin-left:3px}
.stats .l{font-size:11.5px;color:var(--ink3);margin-top:2px}

/* 案例 */
.cases{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:980px){.cases{grid-template-columns:1fr}}
.case{background:#fff;border:1px solid var(--line);padding:26px 24px;transition:.2s}
.case:hover{border-color:var(--ink)}
.case .tag{display:inline-block;font-family:"JetBrains Mono",monospace;font-size:10.5px;color:var(--orange);border:1px solid #F0C9B6;background:#FDF3EE;padding:3px 9px;border-radius:2px}
.case h3{font-size:16.5px;font-weight:600;margin:14px 0 14px;line-height:1.5}
.case .lb{font-family:"JetBrains Mono",monospace;font-size:10px;color:var(--ink3);letter-spacing:1px;margin-top:12px}
.case p{font-size:13px;color:var(--ink2);line-height:1.9}
.case .thumb{display:flex;gap:8px;margin-top:16px}
.case .thumb img{width:52px;height:52px;object-fit:cover;border:1px solid var(--line);background:var(--art)}
.cnote{font-size:12px;color:var(--ink3);margin-top:18px}

/* FAQ */
.faqs{max-width:900px}
.faqit{background:#fff;border:1px solid var(--line);margin-bottom:12px}
.faqit .q{display:flex;gap:14px;align-items:baseline;padding:20px 24px;cursor:pointer}
.faqit .q .b{font-family:"JetBrains Mono",monospace;color:var(--orange);font-weight:700;font-size:13px;flex:none}
.faqit .q span.tx{font-size:15.5px;font-weight:600;flex:1}
.faqit .q .ic{color:var(--ink3);font-size:18px;line-height:1;transition:.25s}
.faqit.open .q .ic{transform:rotate(45deg);color:var(--orange)}
.faqit .a{display:none;padding:0 24px 22px 24px}
.faqit.open .a{display:block}
.faqit .a .b{font-family:"JetBrains Mono",monospace;color:var(--ink3);font-weight:700;font-size:13px;float:left;margin-right:14px}
.faqit .a p{font-size:14px;color:var(--ink2);line-height:2;margin-bottom:8px}

/* 页内 banner */
.pgb{background:var(--dark);color:#fff;padding:46px 0 42px;position:relative;overflow:hidden}
.pgb .wrap{position:relative;z-index:2}
.pgb .crumb{font-family:"JetBrains Mono",monospace;font-size:11px;color:#797D81;letter-spacing:1px;margin-bottom:13px}
.pgb .crumb a{color:#9AA0A5}
.pgb h1{font-size:28px;font-weight:700;letter-spacing:.5px}
.pgb .sub{font-size:13px;color:#8B8F90;margin-top:8px;max-width:640px}
.pgb:after{content:"LIANZHAN";position:absolute;right:-8px;bottom:-28px;font-family:"JetBrains Mono",monospace;font-size:118px;font-weight:700;color:rgba(255,255,255,.035);letter-spacing:6px}

/* 详情 */
.pdetail{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start}
@media(max-width:880px){.pdetail{grid-template-columns:1fr;gap:24px}}
.gmain{border:1px solid var(--line);background:#fff;padding:10px}
.gmain img{width:100%;aspect-ratio:4/3;object-fit:contain;background:var(--art)}
.gthumbs{display:grid;grid-template-columns:repeat(5,1fr);gap:9px;margin-top:9px}
.gthumbs img{width:100%;aspect-ratio:1;object-fit:cover;border:1px solid var(--line);cursor:pointer;opacity:.7;background:var(--art)}
.gthumbs img.on,.gthumbs img:hover{opacity:1;border-color:var(--orange)}
.pmeta .cat{font-family:"JetBrains Mono",monospace;font-size:11px;color:var(--orange);letter-spacing:2px}
.pmeta h2{font-size:29px;font-family:"JetBrains Mono",monospace;margin:8px 0 4px;line-height:1.3}
.pmeta .nm{font-size:14.5px;color:var(--ink2);margin-bottom:8px}
.pmeta .desc{font-size:13px;color:var(--ink3);line-height:1.95;border-top:1px solid var(--line);padding-top:14px;margin-top:14px}
.pmeta .row{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap}
.specwrap{margin-top:48px}
.specwrap h3{font-size:18px;font-weight:600;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.specwrap h3:before{content:"";width:8px;height:8px;background:var(--orange)}
.stable{width:100%;border-collapse:collapse;background:#fff;font-size:12.5px;overflow-x:auto;display:table}
.stable th,.stable td{border:1px solid var(--line);padding:9px 10px;text-align:center;white-space:nowrap}
.stable th{background:#EFEDE7;font-weight:600;font-size:12px;color:var(--ink2)}
.stable td:first-child{font-family:"JetBrains Mono",monospace;font-weight:600}
.snote{font-size:12px;color:var(--ink3);margin-top:10px}
.pnav{display:flex;justify-content:space-between;gap:16px;margin-top:40px;border-top:1px solid var(--line);padding-top:18px;flex-wrap:wrap}
.pnav a{font-size:13px;color:var(--ink2)}
.pnav a:hover{color:var(--orange)}

/* 联系 */
.contact{display:grid;grid-template-columns:1fr 1.1fr;gap:36px;align-items:start}
@media(max-width:880px){.contact{grid-template-columns:1fr}}
.cinfo{background:#fff;border:1px solid var(--line);padding:28px 30px}
.cinfo .it{display:flex;gap:16px;padding:15px 0;border-bottom:1px dashed var(--line)}
.cinfo .it:last-of-type{border-bottom:0}
.cinfo .k{font-size:12px;color:var(--ink3);width:42px;flex:none;padding-top:2px}
.cinfo .v{font-size:14.5px}
.cinfo .v small{display:block;font-size:11.5px;color:var(--ink3);margin-top:2px}
.form{background:#fff;border:1px solid var(--line);padding:28px 30px}
.form h3{font-size:17.5px;font-weight:600;margin-bottom:6px}
.form .tip{font-size:12.5px;color:var(--ink3);margin-bottom:16px}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:560px){.frow{grid-template-columns:1fr}}
.form label{display:block;font-size:12.5px;color:var(--ink2);margin:12px 0 6px}
.form label b{color:var(--orange)}
.form input,.form textarea{width:100%;border:1px solid var(--line);background:var(--paper);padding:11px 13px;font-size:14px;font-family:inherit;border-radius:2px;outline:none;transition:.2s}
.form input:focus,.form textarea:focus{border-color:var(--ink);background:#fff}
.form textarea{min-height:104px;resize:vertical}
.form .subrow{display:flex;align-items:center;gap:14px;margin-top:18px;flex-wrap:wrap}
.form .status{font-size:13px}
.form .status.ok{color:#1D8A4E}.form .status.bad{color:#C3400C}

/* 弹窗 */
.modal{position:fixed;inset:0;background:rgba(15,17,19,.55);display:none;align-items:center;justify-content:center;z-index:200;padding:20px}
.modal.open{display:flex}
.mbox{background:#fff;max-width:452px;width:100%;max-height:90vh;overflow:auto;padding:28px 30px;position:relative;border-top:3px solid var(--orange)}
.mbox .mx{position:absolute;right:12px;top:8px;font-size:22px;color:var(--ink3);cursor:pointer;background:none;border:none}
.mbox .mtag{font-family:"JetBrains Mono",monospace;font-size:10.5px;color:var(--orange);letter-spacing:1.5px}
.mbox h3{font-size:19px;margin:8px 0 4px}
.mbox .mtip{font-size:12.5px;color:var(--ink3);margin-bottom:12px}
.mbox label{display:block;font-size:12.5px;color:var(--ink2);margin:11px 0 5px}
.mbox label b{color:var(--orange)}
.mbox input,.mbox textarea{width:100%;border:1px solid var(--line);background:var(--paper);padding:10px 12px;font-size:14px;font-family:inherit;border-radius:2px;outline:none}
.mbox input:focus,.mbox textarea:focus{border-color:var(--ink);background:#fff}
.mbox input.invalid{border-color:#D33}
.mbox .hp{position:absolute;left:-9999px;opacity:0;height:0;width:0}
.inq-status{font-size:13px;min-height:18px;margin-top:10px}
.inq-status.ok{color:#1D8A4E}.inq-status.bad{color:#C3400C}
.mnote{font-size:11.5px;color:var(--ink3);margin-top:12px;line-height:1.7}

/* footer */
footer{background:#0D0F11;color:#8B8F90}
footer .ftop{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;padding:54px 0 40px}
@media(max-width:980px){footer .ftop{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){footer .ftop{grid-template-columns:1fr}}
footer h5{color:#fff;font-size:13.5px;font-weight:600;margin-bottom:14px;letter-spacing:.5px}
footer a{display:block;font-size:12.5px;line-height:2.3;color:#8B8F90}
footer a:hover{color:#fff}
footer .fbrand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
footer .fbrand svg{width:32px;height:32px}
footer .fbrand .bn{color:#fff;font-size:20px;font-weight:700;letter-spacing:2px}
footer .fbrand .be{font-family:"JetBrains Mono",monospace;font-size:9px;letter-spacing:2px;color:#6A6E72;margin-top:1px}
footer .fdesc{font-size:12.5px;line-height:2;color:#797D81;max-width:330px}
footer .ph{color:#fff;font-family:"JetBrains Mono",monospace;font-size:18px;font-weight:700;line-height:1.5}
footer .em{font-family:"JetBrains Mono",monospace;font-size:12px}
footer .fbar{border-top:1px solid #1E2124;padding:16px 0;display:flex;justify-content:space-between;gap:12px;font-size:11.5px;color:#63676B;flex-wrap:wrap}
footer .fbar .mono{font-size:10.5px}

/* i18n-switch */
.langdd{position:relative;display:inline-block}
.langdd>button{background:none;border:0;color:#C9CDD1;font:inherit;font-size:12px;cursor:pointer;display:flex;align-items:center;gap:6px;padding:0}
.langdd>button:hover{color:#fff}
.langdd .cv{font-size:9px;opacity:.7}
.langdd .ldmenu{position:absolute;top:24px;right:0;background:#fff;box-shadow:0 16px 36px rgba(16,18,21,.2);padding:6px 0;min-width:132px;display:none;z-index:300;text-align:left}
.langdd.open .ldmenu{display:block}
.langdd .ldmenu a{display:block;padding:0 16px;line-height:34px;font-size:13px;color:var(--ink2);white-space:nowrap}
.langdd .ldmenu a:hover{color:var(--orange);background:var(--paper)}
.langdd .ldmenu a.on{color:var(--orange);font-weight:600}

/* ---------- WhatsApp ---------- */
:root{--wa:#25D366;--wa-dark:#1DAF54}
.btn.wa{background:var(--wa);color:#fff;border-color:var(--wa);display:inline-flex;align-items:center;gap:8px}
.btn.wa:hover{background:var(--wa-dark);border-color:var(--wa-dark)}
.btn.wa svg{width:17px;height:17px;fill:#fff;flex:none}
.wa-float{position:fixed;right:24px;bottom:24px;z-index:150;width:56px;height:56px;border-radius:50%;background:var(--wa);display:flex;align-items:center;justify-content:center;box-shadow:0 6px 22px rgba(20,22,25,.26);transition:transform .2s,box-shadow .2s}
.wa-float:hover{transform:scale(1.07);box-shadow:0 9px 28px rgba(20,22,25,.32)}
.wa-float svg{width:31px;height:31px;fill:#fff}
.wa-float::after{content:"";position:absolute;inset:0;border-radius:50%;border:2px solid var(--wa);animation:waPulse 2.6s ease-out infinite}
@keyframes waPulse{0%{transform:scale(1);opacity:.55}70%{transform:scale(1.35);opacity:0}100%{transform:scale(1.35);opacity:0}}
@media(max-width:640px){.wa-float{right:15px;bottom:15px;width:50px;height:50px}.wa-float svg{width:28px;height:28px}}
@media(prefers-reduced-motion:reduce){.wa-float::after{animation:none}}