:root{
  --blue:#002052; --blue-700:#00163A; --cyan:#00B4D8; --cyan-600:#0096C7;
  --ink:#11203A; --muted:#5B6B82; --bg:#F6F9FC; --card:#FFFFFF; --line:#E2E9F1;
  --radius:14px; --shadow:0 6px 24px rgba(0,32,82,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--blue);text-decoration:none}
img{max-width:100%}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
h1,h2,h3{line-height:1.25;color:var(--ink)}
h1{font-size:clamp(28px,4vw,44px);margin:0 0 12px}
h2{font-size:clamp(20px,2.4vw,28px);margin:28px 0 14px}
h3{font-size:18px;margin:0 0 6px}
p{margin:0 0 14px;color:var(--muted)}
li{color:var(--muted)}
.eyebrow{display:inline-block;font-weight:700;letter-spacing:.12em;text-transform:uppercase;font-size:12px;color:var(--cyan-600);margin:0 0 8px}

/* Header */
header.site{position:sticky;top:0;z-index:50;background: rgb(255, 255, 255);backdrop-filter:blur(8px);border-bottom:1px solid rgba(255,255,255,.12)}
.nav{display:flex;align-items:center;justify-content:space-between;height:66px}
.logo{display:flex;align-items:center;width:172px;height:52px}
.logo img{display:block;width:100%;height:100%;object-fit:contain}
.logo-on-white{height:48px;background:#fff;border-radius:8px;padding:4px 9px;overflow:hidden;}
.nav-menu{display:flex;gap:26px;align-items:center;list-style:none;margin:0;padding:0}
.nav-menu a{color:#002052;font-weight:600;font-size:15px;padding:6px 0;position:relative}
.nav-menu a:hover{color:#fff}
.nav-menu a.active{color:var(--cyan)}
.nav-menu a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:3px;border-radius:3px;background:var(--cyan)}
.lang-switch{font-weight:700;color:#fff;border:1px solid rgba(255,255,255,.28);padding:7px 14px;border-radius:999px;background:rgba(255,255,255,.08)}
.lang-switch:hover{background:rgba(255,255,255,.16)}
.nav-toggle{display:none;background:none;border:0;font-size:26px;cursor:pointer;color:#fff}

/* Buttons */
.btn{display:inline-block;padding:12px 22px;border-radius:999px;font-weight:700;font-size:15px;cursor:pointer;border:1px solid transparent;transition:.18s}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-700)}
.btn-ghost{background:#fff;color:var(--blue);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--blue)}
.btn-cyan{background:var(--cyan);color:#06324a}
.btn-cyan:hover{background:var(--cyan-600);color:#fff}
.cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-top:18px}

/* Hero */
.hero{background:linear-gradient(135deg,var(--blue) 0%,#0A3A70 62%,var(--cyan-600) 140%);color:#fff;padding:72px 0}
.hero h1{color:#fff}
.hero .lead{font-size:19px;color:#d8e6f7;max-width:680px}
.hero .eyebrow{color:var(--cyan)}
.hero .btn-ghost{color:var(--blue)}
.home-hero{position:flex;min-height:90vh;display:flex;align-items:center;background-color:#002052;background-image:linear-gradient(90deg,rgba(0,32,82,.52) 0%,rgba(0,32,82,.24) 44%,rgba(0,32,82,0) 64%),url('https://www.longsingx.com/wp-content/themes/longsing-smart-sales/assets/images/home-hero.jpg');background-size:cover;background-position:center center; background-repeat:no-repeat;}
.home-hero .wrap{width:100%}
.home-hero-copy{max-width:540px;padding:26px 0;text-shadow:0 2px 14px rgba(0,0,0,.28)}
.home-hero-copy .btn{text-shadow:none}

/* Homepage black / white section test */
.home-test header.site{background:#fff;border-bottom:1px solid #dbe1e8;box-shadow:0 8px 24px rgba(0,0,0,.08)}
.home-test header.site .logo-on-white{box-shadow:none;padding-left:0}
.home-test header.site .nav-menu a{color:#17191d}
.home-test header.site .nav-menu a:hover{color:#002052}
.home-test header.site .nav-menu a.active{color:#002052}
.home-test header.site .nav-menu a.active::after{background:#002052}
.home-test header.site .lang-switch{color:#111;border-color:#c8ced6;background:#f4f6f8}
.home-test header.site .lang-switch:hover{color:#fff;background:#111;border-color:#111}
.home-test header.site .nav-toggle{color:#111}
.home-test{background:#090a0c}
.home-test .home-hero{border-bottom:0}
.home-products-dark,.home-solutions-dark,.home-contact-dark{position:relative;background:#090a0c;color:#fff;padding:78px 0}
.home-products-dark{border-top:1px solid #292c32;border-bottom:1px solid #30333a}
.home-solutions-dark{background:#111317;border-top:1px solid #30333a;border-bottom:1px solid #30333a;box-shadow:none}
.home-contact-dark{background:#090a0c;border-top:1px solid #30333a;text-align:left}
.home-products-dark h2,.home-solutions-dark h2,.home-contact-dark h2{color:#fff;font-size:clamp(30px,3.6vw,46px);margin:0 0 30px}
.home-section-kicker{color:#8edff0;font-size:12px;font-weight:800;letter-spacing:.2em;margin:0 0 9px}
.home-products-dark .card,.home-solutions-dark .card{background:#17191d;border-color:#343842;box-shadow:none}
.home-products-dark .card:hover,.home-solutions-dark .card:hover{background:#202329;border-color:#00b4d8;box-shadow:0 14px 36px rgba(0,0,0,.38)}
.home-products-dark .card h3,.home-solutions-dark .card h3{color:#fff}
.home-products-dark .card p,.home-solutions-dark .card p{color:#c8cdd5}
.home-products-dark .card .more,.home-solutions-dark .card .more{color:#63d5ec}
.home-solutions-dark .btn-primary{background:#fff;color:#090a0c;border-color:#fff}
.home-solutions-dark .btn-primary:hover{background:#00b4d8;border-color:#00b4d8;color:#062535}
.home-contact-grid{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:64px;align-items:start}
.home-contact-copy p{color:#c8cdd5;max-width:470px;font-size:17px}
.home-contact-copy a{color:#63d5ec;font-weight:700}
.home-contact-dark form.inquiry{max-width:none;background:#17191d;border-color:#343842;box-shadow:none}
.home-contact-dark .field label{color:#fff}
.home-contact-dark .field input,.home-contact-dark .field textarea,.home-contact-dark .field select{background:#0f1115;border-color:#454a55;color:#fff}
.home-contact-dark .field input:focus,.home-contact-dark .field textarea:focus,.home-contact-dark .field select:focus{border-color:#00b4d8}
.home-contact-dark form.inquiry .btn-primary{background:#fff;color:#090a0c;border-color:#fff}
.home-contact-dark form.inquiry .btn-primary:hover{background:#00b4d8;border-color:#00b4d8;color:#062535}
.home-test footer.site{margin-top:0;background:#050607;border-top:1px solid #30333a}
.product-hero-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr);gap:44px;align-items:center}
.product-visual{display:flex;align-items:center;justify-content:center;background:#fff;border-radius:18px;padding:18px;box-shadow:0 14px 34px rgba(3,26,68,.18);overflow:hidden}
.product-visual img{display:block;width:100%;height:auto;object-fit:contain}
.band{background:black;color:#fff;text-align:center;padding:42px 0}
.band h2{color:#fff}
.band p{color:#cfe0f2}

/* Sections & grids */
.section{padding:54px 0}
.grid-2{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:36px;align-items:start}
.grid-2>*{min-width:0}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);transition:.18s}
.card:hover{transform:translateY(-3px);border-color:var(--cyan)}
.card-media{display:flex;align-items:center;justify-content:center;height:150px;margin:-22px -22px 18px;background:#fff;border-bottom:1px solid var(--line);border-radius:var(--radius) var(--radius) 0 0;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:contain;padding:10px}
.card .tag{font-size:12px;font-weight:700;color:var(--cyan-600);text-transform:uppercase;letter-spacing:.06em}
.card h3{margin:8px 0 6px}
.card p{font-size:14px;margin:0 0 14px}
.card .more{font-weight:700;font-size:14px}

/* Public datasheets */
.resource-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px}
.resource-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.resource-info{padding:20px}
.resource-info .tag{font-size:12px;font-weight:700;color:var(--cyan-600);text-transform:uppercase;letter-spacing:.06em}
.resource-info h2{font-size:20px;margin:6px 0 8px}
.resource-info code{display:block;font-size:12px;word-break:break-word;margin-bottom:16px;color:var(--muted)}

/* Email-gated datasheet download */
body.modal-open{overflow:hidden}
.download-modal[hidden]{display:none}
.download-modal{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;padding:20px}
.download-modal-backdrop{position:absolute;inset:0;background:rgba(0,20,52,.76);backdrop-filter:blur(3px)}
.download-dialog{position:relative;z-index:1;width:min(520px,100%);max-height:calc(100vh - 40px);overflow:auto;background:#fff;border-radius:18px;padding:30px;box-shadow:0 24px 70px rgba(0,20,52,.32)}
.download-dialog h2{margin-top:0;padding-right:32px}
.download-dialog-close{position:absolute;top:12px;right:14px;border:0;background:transparent;color:var(--muted);font-size:30px;line-height:1;cursor:pointer;padding:6px}
.download-selection{background:#eef3f9;border-left:4px solid var(--blue);border-radius:8px;padding:10px 14px;color:var(--ink)}
.download-dialog small{display:block;color:var(--muted);margin-top:6px}
.field-error{color:#B42318;font-size:13px;min-height:21px;margin:4px 0 0}
.download-actions{display:flex;gap:12px;flex-wrap:wrap}
.download-success{color:#067647;font-weight:700;margin:14px 0 0}

/* =========================================================
   Contact Form 7 - Datasheet Modal
   ========================================================= */
.download-dialog .wpcf7{
    width:100%;
    margin:0;
}
/*
 * The dialog itself is already the white card.
 * Remove the second white card from form.inquiry.
 */
.download-dialog .wpcf7 form.datasheet-inquiry{
    width:100%;
    max-width:none;
    margin:0;
    padding:0;
    background:transparent;
    border:0;
    border-radius:0;
    box-shadow:none;
}
.download-dialog .datasheet-inquiry .field{
    margin:0 0 18px;
}
.download-dialog .datasheet-inquiry .field label{
    display:block;
    margin:0 0 6px;
    color:var(--ink);
    font-size:14px;
    font-weight:600;
}
.download-dialog .datasheet-inquiry
.wpcf7-form-control-wrap{
    display:block;
    width:100%;
}
.download-dialog .datasheet-inquiry
input[type="email"]{
    display:block;
    width:100%;
    min-height:45px;
    padding:11px 13px;
    background:#fbfdff;
    border:1px solid var(--line);
    border-radius:10px;
    color:var(--ink);
    font-family:inherit;
    font-size:15px;
}
.download-dialog .datasheet-inquiry
input[type="email"]:focus{
    outline:none;
    border-color:var(--cyan);
    box-shadow:
        0 0 0 3px rgba(0,180,216,.15);
}
.download-dialog .datasheet-inquiry small{
    display:block;
    margin-top:6px;
    color:var(--muted);
    font-size:12px;
    line-height:1.55;
}
.download-dialog .datasheet-inquiry
.wpcf7-not-valid-tip{
    display:block;
    margin-top:5px;
    color:#b42318;
    font-size:13px;
}
.download-dialog .datasheet-inquiry
.download-actions{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:12px;
    margin:0;
}
.download-dialog .datasheet-inquiry
.wpcf7-spinner{
    flex:0 0 auto;
    margin:0;
}
.download-dialog .datasheet-inquiry
.wpcf7-response-output{
    margin:16px 0 0;
    padding:10px 12px;

    border-radius:8px;

    font-size:13px;
    line-height:1.55;
}
.download-fallback{
    margin:15px 0 0;
    color:var(--muted);
    font-size:13px;
}
.download-fallback[hidden]{
    display:none;
}
.download-fallback a{
    color:var(--blue);
    font-weight:700;
    text-decoration:underline;
}
@media (max-width:560px){
    .download-dialog .datasheet-inquiry
    .download-actions{
        display:grid;
        grid-template-columns:1fr;
    }
    .download-dialog .datasheet-inquiry
    .download-actions .btn{
        width:100%;
        text-align:center;
    }
}

/* About LongsingX */
.about-hero .lead{max-width:860px}
.about-story{background:#fff}
.about-copy{max-width:900px}
.about-copy h2{margin-top:0}
.about-copy p{font-size:18px;line-height:1.8}
.about-advantages{background:#eef3f9}
.about-advantages h2{margin-top:0}
.about-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.about-card,.about-focus{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}
.about-card{border-top:4px solid var(--blue)}
.about-card h3,.about-focus h3{color:var(--blue);margin-bottom:10px}
.about-card p,.about-focus p{margin:0}
.about-links p{max-width:760px;margin:0 auto 22px}
.brand-link-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;text-align:left}
.brand-link-grid a{display:flex;justify-content:space-between;align-items:center;gap:10px;background:#fff;color:var(--blue);border-radius:12px;padding:16px 18px;font-weight:700}
.brand-link-grid a:hover{background:#eaf6fb}

/* Spec table */
.table-scroll{display:block;width:100%;max-width:100%;overflow-x:auto;border-radius:var(--radius);-webkit-overflow-scrolling:touch}
table.spec{width:100%;min-width:480px;border-collapse:collapse;font-size:15px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
table.spec th,table.spec td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--line)}
table.spec th{width:42%;background:#f3f7fc;color:var(--ink);font-weight:600}
table.spec tr:last-child th,table.spec tr:last-child td{border-bottom:0}

/* Lists */
ul.ticks{list-style:none;padding:0;margin:0}
ul.ticks li{position:relative;padding-left:26px;margin-bottom:10px;color:var(--ink)}
ul.ticks li::before{content:"";position:absolute;left:0;top:9px;width:10px;height:10px;border-radius:50%;background:var(--cyan)}
ul.pains{list-style:none;padding:0;margin:0}
ul.pains li{background:#fff;border:1px solid var(--line);border-left:4px solid var(--cyan);border-radius:10px;padding:14px 16px;margin-bottom:12px}

/* Breadcrumb */
.crumb{font-size:13px;color:var(--muted);padding:16px 0 0}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--blue)}

/* Forms */
form.inquiry{
    width:100%;
    max-width:620px;
    margin:0;
    padding:28px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius);
    box-shadow:var(--shadow);
}
.field{
    margin:0 0 16px;
}
.field label{
    display:block;
    margin:10 0 -6px;
    color:var(--ink);
    font-size:14px;
    font-weight:600;
    line-height:1.4;
}
.field input,
.field textarea,
.field select{
    display:block;
    width:100%;
    max-width:100%;
    padding:11px 13px;
    background:#fbfdff;
    border:1px solid var(--line);
    border-radius:10px;
    color:var(--ink);
    font-family:inherit;
    font-size:15px;
    line-height:1.45;
}
.field input,
.field select{
    min-height:45px;
}
.field textarea{
    width:100%;
    height:120px;
    min-height:120px;
    resize:vertical;
}
.field input:focus,
.field textarea:focus,
.field select:focus{
    outline:none;
    border-color:var(--cyan);
    box-shadow:
        0 0 0 3px rgba(0,180,216,.15);
}
/* Contact Form 7 outer wrapper */
.wpcf7{
    width:100%;
    margin:0;
}
/* Contact Form 7 generated form */
.wpcf7 form.inquiry{
    width:100%;
    max-width:620px;
    margin:0;
}
/*
 * Prevent CF7 control wrappers from affecting width.
 */
.wpcf7 form.inquiry
.wpcf7-form-control-wrap{
    display:block;
    width:100%;
    max-width:100%;
}
.wpcf7 form.inquiry
.wpcf7-form-control-wrap > input,
.wpcf7 form.inquiry
.wpcf7-form-control-wrap > select,
.wpcf7 form.inquiry
.wpcf7-form-control-wrap > textarea{
    width:100%;
    max-width:100%;
    box-sizing:border-box;
}
/*
 * Remove accidental paragraph spacing if the CF7 editor
 * has inserted empty paragraphs.
 */
.wpcf7 form.inquiry > p:empty{
    display:none;
}
.wpcf7 form.inquiry .form-actions{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:12px;
    margin:2px 0 0;
}
.wpcf7 form.inquiry .wpcf7-submit{
    margin:0;
}
.wpcf7 form.inquiry .wpcf7-spinner{
    flex:0 0 auto;
    margin:0;
}
.wpcf7 form.inquiry .form-note{
    margin:12px 0 0;
    color:var(--muted);
    font-size:13px;
    line-height:1.6;
}
.wpcf7 form.inquiry
.wpcf7-not-valid-tip{
    display:block;
    margin:5px 0 0;
    color:#b42318;
    font-size:13px;
    line-height:1.45;
}
.wpcf7 form.inquiry
.wpcf7-response-output{
    margin:16px 0 0;
    padding:10px 13px;
    border-radius:8px;
    font-size:13px;
    line-height:1.55;
}
.wpcf7 form.init
.wpcf7-response-output{
    display:none;
}
/* =========================================================
   Contact Page Form Alignment
   ========================================================= */
.contact-page .contact-form-column{
    display:flex;
    align-items:flex-start;
    justify-content:flex-end;
    min-width:0;
}
.contact-page .contact-form-column .wpcf7{
    width:100%;
    max-width:620px;
    margin:0;
}
.contact-page .contact-form-column
.wpcf7 form.inquiry{
    max-width:none;
}
/*
 * If contact-form-shell still exists from the previous
 * template, prevent a second card layer.
 */
.contact-page .contact-form-shell{
    padding:0;
    background:transparent;
    border:0;
    border-radius:0;
    box-shadow:none;
}
/* =========================================================
   Homepage Dark Contact Form
   ========================================================= */
.home-contact-dark .wpcf7{
    width:100%;
}
.home-contact-dark
.wpcf7 form.inquiry{
    max-width:none;
}
@media (max-width:880px){
    .contact-page .contact-form-column{
        display:block;
    }
    .contact-page
    .contact-form-column .wpcf7{
        max-width:none;
    }
}
@media (max-width:560px){
    form.inquiry{
        padding:22px 18px;
    }
    .wpcf7 form.inquiry
    .form-actions{
        display:grid;
        grid-template-columns:1fr;
    }
    .wpcf7 form.inquiry
    .form-actions .btn{
        width:100%;
        text-align:center;
    }
}


/* Footer */
footer.site{background:var(--blue);color:#cfe0f2;padding:46px 0 26px; border-top:1px solid rgba(255,255,255,.12); box-shadow:0 -8px 24px rgba(0,32,82,.16);position:relative;z-index:2;}
footer.site a{color:#dce8f7}
footer.site h3{color:#fff;font-size:15px;margin-bottom:12px}
.footer-logo{width:220px;height:74px;padding:8px 14px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
.foot-grid ul{list-style:none;padding:0;margin:0}
.foot-grid li{margin-bottom:8px;font-size:14px}
footer .copy{border-top:1px solid rgba(255,255,255,.12);margin-top:30px;padding-top:18px;font-size:13px;color:#9fb6d6}

/* Responsive */
@media (max-width:880px){
  .nav-menu{position:absolute;top:66px;left:0;right:0;background:#002052;flex-direction:column;gap:0;padding:8px 20px 16px;border-bottom:1px solid rgba(255,255,255,.12);display:none}
  .nav-menu.open{display:flex}
  .nav-menu li{width:100%;border-bottom:1px solid rgba(255,255,255,.1)}
  .nav-menu a{display:block;padding:12px 0}
  .nav-toggle{display:block}
  .grid-2,.grid-3,.grid-4,.foot-grid,.product-hero-grid,.about-grid,.brand-link-grid{grid-template-columns:1fr}
  .product-visual{max-width:620px}
  .home-hero{min-height:500px;background-position:62% center}
  .home-hero::before{content:"";position:absolute;inset:0;background:rgba(2,12,30,.24);pointer-events:none}
  .home-hero .wrap{position:relative;z-index:1}
  .home-test .nav-menu{background:#fff;border-bottom:1px solid #dbe1e8;box-shadow:0 16px 28px rgba(0,0,0,.12)}
  .home-test .nav-menu li{border-bottom-color:#e5e7eb}
  .home-products-dark,.home-solutions-dark,.home-contact-dark{padding:58px 0}
  .home-contact-grid{grid-template-columns:1fr;gap:28px}
}
@media (max-width:560px){
  .logo{width:138px;height:48px}
  .home-hero{min-height:520px;background-position:68% center}
  .home-hero::before{background:linear-gradient(90deg,rgba(2,12,30,.78),rgba(2,12,30,.42))}
  .resource-grid{grid-template-columns:1fr}
  .download-dialog{padding:24px 18px}
  .download-actions .btn{width:100%;text-align:center}
}