/* ================================================================
   TTD FINAL PRO V18
   Clean production stylesheet — no legacy override stack.
   ================================================================ */
:root{
  --blue:#1768e6;
  --blue-2:#5ca5ff;
  --blue-3:#0e5bd5;
  --ink:#17324f;
  --text:#526a82;
  --muted:#607991;
  --line:#dce8f6;
  --soft:#f5faff;
  --soft-2:#edf6ff;
  --white:#fff;
  --header-h:70px;
  --footer-h:58px;
  --container:1240px;
  --radius:30px;
  --shadow:0 24px 68px rgba(35,76,130,.09),0 6px 18px rgba(35,76,130,.04);
  --font:Inter,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--text);background:linear-gradient(180deg,#f7fbff 0%,#edf6ff 100%);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,textarea,select{font:inherit}
button{cursor:pointer}
.skip-link{position:fixed;z-index:2000;left:12px;top:10px;padding:10px 14px;border-radius:10px;background:#0e5bd5;color:#fff;font-size:13px;font-weight:800;transform:translateY(-160%);transition:transform .15s ease}
.skip-link:focus{transform:none}
.visually-hidden{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
.container{width:min(var(--container),calc(100% - 56px));margin:0 auto}
.desktop-home-only,.desktop-product-only{display:block}
.mobile-home-only,.mobile-product-only,.mobile-product-nav{display:none}

/* Header */
.site-header{position:fixed;z-index:1000;inset:0 0 auto;height:var(--header-h);background:rgba(248,252,255,.94);border-bottom:1px solid rgba(216,230,246,.9);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);box-shadow:0 8px 30px rgba(40,76,122,.05)}
.nav-wrap{height:100%;display:flex;align-items:center;gap:24px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:13px;background:linear-gradient(135deg,var(--blue-3),var(--blue-2));color:#fff;font-weight:950;font-size:14px;letter-spacing:-.04em;box-shadow:0 9px 20px rgba(23,104,230,.2)}
.brand-mark.small{width:32px;height:32px;border-radius:10px;font-size:11px;box-shadow:none}
.brand-text{font-size:17px;font-weight:900;color:var(--ink);letter-spacing:-.03em;white-space:nowrap}
.top-nav{margin-left:auto;display:flex;align-items:center;gap:3px;padding:5px;border:1px solid rgba(211,226,244,.95);border-radius:17px;background:rgba(255,255,255,.78);box-shadow:inset 0 1px rgba(255,255,255,.9),0 8px 20px rgba(37,75,126,.04)}
.top-nav a{display:flex;align-items:center;justify-content:center;height:36px;padding:0 12px;border-radius:12px;font-size:12.5px;font-weight:760;color:#5b7188;white-space:nowrap;transition:.18s ease}
.top-nav a:hover{color:var(--blue);background:#f1f7ff}
.top-nav a.active{color:#fff;background:linear-gradient(135deg,var(--blue-3),#3d88f4 58%,var(--blue-2));box-shadow:0 7px 16px rgba(23,104,230,.18)}
.top-nav a[data-nav="contact"]{color:var(--blue);background:#edf6ff;margin-left:2px}
.top-nav a[data-nav="contact"]:hover{background:#e4f1ff}
.nav-toggle{display:none;width:42px;height:42px;border:0;background:transparent;border-radius:12px;padding:9px}
.nav-toggle span{display:block;height:2px;background:var(--ink);margin:5px 0;border-radius:2px}

/* Shared buttons */
.btn,.mobile-primary-btn,.mobile-secondary-btn{display:inline-flex;align-items:center;justify-content:center;border-radius:13px;font-weight:820;transition:transform .18s ease,box-shadow .18s ease,background .18s ease}
.btn{height:46px;padding:0 21px;font-size:13px}
.btn-primary,.mobile-primary-btn{color:#fff;background:linear-gradient(135deg,var(--blue-3),#3d88f4 58%,var(--blue-2));box-shadow:0 10px 22px rgba(23,104,230,.18)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(23,104,230,.23)}
.btn-ghost,.mobile-secondary-btn{color:var(--blue);background:linear-gradient(180deg,#fff,#f7fbff);border:1px solid #cfe1f6;box-shadow:0 5px 14px rgba(35,76,130,.04)}
.btn-ghost:hover{transform:translateY(-2px);background:#fff;box-shadow:0 10px 20px rgba(35,76,130,.07)}

/* Desktop viewport layout */
@media (min-width:821px){
  html{overflow:hidden}
  body{height:100vh;overflow:hidden}
  .home-main,.single-product-main{height:calc(100vh - var(--header-h) - var(--footer-h));margin-top:var(--header-h);display:flex;align-items:center;padding:16px 0;overflow:hidden}
  .home-hero,.single-product-shell,.product-row{width:100%;height:100%}
  .home-hero,.single-product-shell{display:flex;align-items:center}
  .hero-grid,.single-product-grid{height:min(650px,calc(100vh - var(--header-h) - var(--footer-h) - 32px));min-height:420px;border:1px solid rgba(214,228,245,.95);border-radius:var(--radius);background:linear-gradient(180deg,rgba(255,255,255,.99),rgba(251,253,255,.985));box-shadow:var(--shadow);position:relative;overflow:hidden}

  /* Home */
  .home-hero{position:relative}
  .hero-orb{position:absolute;border-radius:50%;filter:blur(2px);pointer-events:none;opacity:.65}
  .hero-orb-a{width:360px;height:360px;right:3%;top:-10%;background:radial-gradient(circle,#d9ecff 0%,rgba(217,236,255,0) 70%)}
  .hero-orb-b{width:280px;height:280px;left:-5%;bottom:-20%;background:radial-gradient(circle,#e8f4ff 0%,rgba(232,244,255,0) 72%)}
  .hero-grid{display:grid;grid-template-columns:minmax(355px,.83fr) minmax(565px,1.17fr);gap:34px;align-items:center;padding:42px 46px}
  .hero-copy{position:relative;z-index:2;max-width:500px}
  .eyebrow,.mobile-eyebrow{display:inline-flex;align-items:center;min-height:29px;padding:0 11px;border:1px solid #d8e8fa;border-radius:999px;background:#f0f7ff;color:var(--blue);font-size:9.5px;font-weight:850;letter-spacing:.14em}
  .hero-copy h1{margin:15px 0 14px;color:var(--ink);font-size:clamp(42px,4vw,58px);line-height:1.06;font-weight:950;letter-spacing:-.05em}
  .hero-copy h1 span{background:linear-gradient(135deg,var(--blue),var(--blue-2));-webkit-background-clip:text;background-clip:text;color:transparent}
  .hero-lead{margin:0 0 8px;font-size:17px;line-height:1.55;font-weight:720;color:#3c5874}
  .hero-sub{margin:0;max-width:470px;font-size:13px;line-height:1.78;color:var(--muted)}
  .hero-actions{display:flex;gap:10px;margin-top:18px}
  .hero-actions .btn{min-width:118px}
  .hero-points{display:grid;grid-template-columns:repeat(4,max-content);gap:7px 13px;margin-top:17px}
  .hero-points div{display:flex;align-items:center;gap:6px;font-size:11px;font-weight:720;color:#5a7189}
  .hero-points span{display:grid;place-items:center;width:17px;height:17px;border-radius:50%;background:#eaf4ff;color:var(--blue);font-size:10px}
  .hero-product-links{display:flex;align-items:center;flex-wrap:wrap;gap:6px;margin-top:14px;font-size:10.5px;color:#8a9aae}
  .hero-product-links>span{font-weight:750;color:#7890a8;margin-right:2px}
  .hero-product-links a{padding:5px 8px;border-radius:8px;color:#607991;background:#f7fbff;border:1px solid #e6eff9;font-weight:700;transition:.16s ease}
  .hero-product-links a:hover{color:var(--blue);border-color:#cfe2f8;background:#eef7ff}

  /* Shared visual stage: no image frames */
  .hero-stage,.device-stage{position:relative;z-index:2;width:100%;height:100%;display:grid;grid-template-columns:minmax(0,1.32fr) minmax(0,.68fr);gap:18px;align-items:stretch;min-width:0}
  .hero-glow{position:absolute;inset:12% 4% 8% 3%;border-radius:50%;background:radial-gradient(circle,rgba(218,237,255,.72),rgba(238,247,255,0) 70%);pointer-events:none;z-index:-1}
  .hero-admin,.hero-mobile,.admin-frame,.mobile-frame{height:100%;min-height:0;display:grid;grid-template-rows:minmax(0,1fr) 24px;align-items:center;justify-items:center;padding:0;background:transparent;border:0;box-shadow:none;overflow:visible;min-width:0}
  .hero-admin img,.admin-frame img{width:100%;height:100%;object-fit:contain;object-position:center;min-width:0;min-height:0}
  .hero-mobile img,.mobile-frame img{width:100%;height:100%;object-fit:contain;object-position:center;min-width:0;min-height:0}
  .image-caption{position:static!important;width:100%;margin:0;padding:5px 0 0;text-align:center;color:#617a93;font-size:11.5px;font-weight:800;line-height:1.2;background:transparent!important;border:0!important;box-shadow:none!important}
  .hero-admin:before,.hero-mobile:before{display:none!important}

  /* Product page */
  .single-product-grid{display:grid;grid-template-columns:minmax(350px,.78fr) minmax(610px,1.22fr);gap:34px;align-items:center;padding:38px 44px}
  .product-copy{width:100%;max-width:440px;display:flex;flex-direction:column;justify-content:center;min-height:0}
  .product-title-row{display:flex;align-items:center;gap:13px;min-height:50px}
  .product-index{display:grid;place-items:center;width:48px;height:48px;flex:0 0 48px;border-radius:15px;background:linear-gradient(145deg,var(--blue-3),#4893fb);color:#fff;font-size:13px;font-weight:900;box-shadow:0 9px 20px rgba(23,104,230,.18)}
  .product-kicker{color:var(--blue);font-size:32px;line-height:1.04;font-weight:950;letter-spacing:-.035em}
  .single-product-title{margin:13px 0 9px;max-width:430px;color:var(--ink);font-size:26px;line-height:1.3;font-weight:900;letter-spacing:-.03em}
  .product-copy>p{margin:0 0 12px;max-width:420px;color:var(--muted);font-size:12.5px;line-height:1.72}
  .product-copy ul{list-style:none;margin:0;padding:0;display:grid;gap:5px}
  .product-copy li{position:relative;min-height:22px;padding-left:23px;color:#4c657e;font-size:11.5px;line-height:1.55;font-weight:620}
  .product-copy li:before{content:"✓";position:absolute;left:0;top:1px;display:grid;place-items:center;width:16px;height:16px;border:1px solid #d6e6f8;border-radius:50%;background:#edf6ff;color:var(--blue);font-size:9px;font-weight:900}
  .product-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin-top:13px;max-width:420px}
  .product-meta div{min-width:0;padding:9px 9px 8px;border:1px solid #e3edf8;border-radius:11px;background:linear-gradient(180deg,#fcfeff,#f7fbff)}
  .product-meta span,.product-meta b{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .product-meta span{font-size:9px;color:#91a1b2;margin-bottom:3px}
  .product-meta b{font-size:10.5px;color:#526b84;font-weight:800}
  .product-actions{display:grid;grid-template-columns:1fr 1fr;gap:9px;width:330px;margin-top:14px}
  .product-actions .btn{width:100%;padding:0 12px}
  .single-device-stage{height:100%;min-height:0}

  /* Footer */
  .site-footer{position:fixed;z-index:900;left:0;right:0;bottom:0;height:var(--footer-h);background:rgba(235,245,255,.95);border-top:1px solid #d9e7f6;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
  .footer-inner{height:100%;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:18px}
  .footer-brand{display:flex;align-items:center;gap:8px;color:var(--ink)}
  .footer-brand b{font-size:13px;font-weight:900}
  .footer-links{display:none}
  .copyright{text-align:center;color:#8a9caf;font-size:10.5px;font-weight:620}
  .footer-contact{display:flex;align-items:center;gap:8px}
  .footer-contact a{display:flex;align-items:center;height:30px;padding:0 10px;border:1px solid #d7e5f5;border-radius:9px;background:rgba(255,255,255,.66);color:#647c94;font-size:9.5px;font-weight:720}
}

/* Floating contact */
.floating-contact{position:fixed;z-index:1300;right:24px;bottom:76px}
.contact-fab{display:flex;align-items:center;gap:7px;height:46px;padding:0 16px;border:0;border-radius:999px;color:#fff;background:linear-gradient(135deg,var(--blue-3),var(--blue-2));font-size:12px;font-weight:850;box-shadow:0 12px 28px rgba(23,104,230,.22)}
.fab-bubble{font-size:12px;letter-spacing:1px}
.contact-panel{position:absolute;right:0;bottom:58px;width:340px;max-height:min(76vh,640px);max-height:min(76dvh,640px);display:flex;flex-direction:column;opacity:0;visibility:hidden;transform:translateY(10px) scale(.98);transform-origin:bottom right;border:1px solid #dce8f6;border-radius:20px;background:#fff;box-shadow:0 24px 58px rgba(31,70,120,.18);overflow:hidden;transition:.18s ease}
.contact-panel.open{opacity:1;visibility:visible;transform:none}
.contact-panel-head{display:grid;grid-template-columns:42px 1fr 36px;align-items:center;gap:10px;flex:0 0 auto;padding:15px;background:linear-gradient(180deg,#f8fbff,#eef6ff);border-bottom:1px solid #e3edf8}
.contact-avatar{display:grid;place-items:center;width:42px;height:42px;border-radius:13px;background:linear-gradient(135deg,var(--blue-3),var(--blue-2));color:#fff;font-size:12px;font-weight:900}
.contact-panel-head strong{display:block;color:var(--ink);font-size:13px}
.contact-panel-head small{display:flex;align-items:center;gap:5px;margin-top:3px;color:#7f93a8;font-size:10px}
.contact-panel-head small i{width:6px;height:6px;border-radius:50%;background:#34c978}
.contact-panel-close{display:grid;place-items:center;width:36px;height:36px;padding:0;border:0;border-radius:9px;background:rgba(255,255,255,.7);color:#7890a7;font-size:18px}
.contact-panel-body{flex:1 1 auto;min-height:0;padding:14px;overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch}
.service-message{padding:11px 12px;border-radius:12px;background:#f7fbff;color:#647b92;font-size:11px;line-height:1.6;margin-bottom:10px}
.contact-channel{display:grid;grid-template-columns:36px 1fr auto;align-items:center;gap:10px;padding:10px;border:1px solid #e3edf8;border-radius:13px;background:#fff;margin-top:8px}
.contact-channel:hover{border-color:#cde0f7;background:#f9fcff}
.channel-icon{display:grid;place-items:center;width:36px;height:36px;border-radius:11px;background:#edf6ff;color:var(--blue);font-size:13px;font-weight:900}
.contact-channel b,.contact-channel small{display:block}
.contact-channel b{font-size:11px;color:var(--ink)}
.contact-channel small{margin-top:2px;color:#8a9caf;font-size:9px}
.contact-channel em{font-style:normal;color:var(--blue);font-size:9.5px;font-weight:800}

/* Image modal desktop */
.modal{position:fixed;z-index:1600;inset:0;display:grid;place-items:center;opacity:0;visibility:hidden;transition:.18s ease}
.modal.open{opacity:1;visibility:visible}
.modal-backdrop{position:absolute;inset:0;background:rgba(8,22,38,.74);backdrop-filter:blur(6px)}
.modal-content{position:relative;z-index:2;width:min(92vw,1380px);height:min(88vh,900px);display:grid;place-items:center}
.modal-content img{max-width:100%;max-height:100%;object-fit:contain;filter:drop-shadow(0 18px 46px rgba(0,0,0,.22))}
.modal-close{position:fixed;z-index:3;right:26px;top:22px;width:42px;height:42px;border:1px solid rgba(255,255,255,.25);border-radius:50%;background:rgba(255,255,255,.12);color:#fff;font-size:26px;line-height:1}

/* Medium desktop */
@media (min-width:821px) and (max-width:1180px){
  :root{--container:1060px}
  .container{width:min(var(--container),calc(100% - 36px))}
  .nav-wrap{gap:14px}
  .top-nav a{padding:0 8px;font-size:11.5px}
  .hero-grid{grid-template-columns:minmax(300px,.8fr) minmax(500px,1.2fr);gap:24px;padding:32px 34px}
  .hero-copy h1{font-size:clamp(34px,4.2vw,47px)}
  .hero-lead{font-size:15px}
  .hero-sub{font-size:12px}
  .hero-points{grid-template-columns:repeat(2,max-content)}
  .single-product-grid{grid-template-columns:minmax(300px,.76fr) minmax(515px,1.24fr);gap:24px;padding:30px 32px}
  .product-kicker{font-size:28px}
  .single-product-title{font-size:22px}
  .product-copy>p{font-size:11.5px}
  .product-copy li{font-size:10.5px}
  .product-meta{gap:5px}.product-meta div{padding:7px}
  .product-actions{width:300px}
}

/* Low-height desktop */
@media (min-width:821px) and (max-height:720px){
  :root{--header-h:62px;--footer-h:50px}
  .brand-mark{width:37px;height:37px;border-radius:11px}.brand-text{font-size:15px}
  .top-nav{padding:4px}.top-nav a{height:32px;font-size:11px}
  .home-main,.single-product-main{padding:10px 0}
  .hero-grid,.single-product-grid{height:calc(100vh - var(--header-h) - var(--footer-h) - 20px);min-height:0;border-radius:24px}
  .hero-grid{padding:26px 34px}.single-product-grid{padding:24px 32px}
  .hero-copy h1{margin:10px 0;font-size:34px}.eyebrow{min-height:25px;font-size:8.5px}.hero-lead{font-size:13px}.hero-sub{font-size:10.5px;line-height:1.6}.hero-actions{margin-top:12px}.btn{height:40px}.hero-points{margin-top:10px}.hero-product-links{margin-top:8px}
  .product-title-row{min-height:42px}.product-index{width:41px;height:41px;flex-basis:41px}.product-kicker{font-size:25px}.single-product-title{margin:9px 0 6px;font-size:20px}.product-copy>p{margin-bottom:7px;font-size:10px;line-height:1.55}.product-copy ul{gap:2px}.product-copy li{min-height:18px;font-size:10px}.product-meta{margin-top:7px}.product-meta div{padding:5px 6px}.product-meta span{font-size:8.5px}.product-meta b{font-size:9.5px}.product-actions{margin-top:8px}.product-actions .btn{height:38px;font-size:11px}
  .image-caption{font-size:9.5px}
  .footer-contact a{height:28px;font-size:9px}.copyright{font-size:9.5px}
  .floating-contact{bottom:62px}
}

/* Very narrow desktop */
@media (min-width:821px) and (max-width:980px){
  .top-nav a{padding:0 6px;font-size:10px}
  .brand-text{display:none}
  .hero-grid{grid-template-columns:310px 1fr;padding-left:28px;padding-right:28px}
  .single-product-grid{grid-template-columns:300px 1fr;padding-left:28px;padding-right:28px}
  .product-actions{width:280px}
  .footer-contact a:first-child{display:none}
}

/* Mobile */
@media (max-width:820px){
  :root{--header-h:58px}
  html,body{overflow-x:hidden}
  body{background:#f3f9ff;padding-bottom:78px}
  .container{width:min(100% - 30px,720px)}
  .desktop-home-only,.desktop-product-only{display:none!important}
  .mobile-home-only,.mobile-product-only{display:block}
  .site-header{height:58px;background:rgba(248,252,255,.97)}
  .nav-wrap{width:100%;padding:0 15px;gap:10px}
  .brand-mark{width:38px;height:38px;border-radius:12px;font-size:12px}.brand-text{font-size:15px}
  .nav-toggle{display:block;margin-left:auto}
  .top-nav{position:fixed;z-index:1200;top:64px;right:14px;width:min(260px,calc(100vw - 28px));display:grid;grid-template-columns:1fr 1fr;gap:5px;padding:8px;border-radius:16px;background:rgba(255,255,255,.98);box-shadow:0 18px 48px rgba(31,70,120,.15);opacity:0;visibility:hidden;transform:translateY(-8px);transition:.18s ease}
  .top-nav.open{opacity:1;visibility:visible;transform:none}
  .top-nav a{height:40px;padding:0 9px;font-size:11.5px}.top-nav a[data-nav="contact"]{grid-column:1/-1;margin:0}
  .mobile-product-nav{position:fixed;z-index:950;top:58px;left:0;right:0;height:48px;display:flex;align-items:center;gap:6px;padding:6px 12px;overflow-x:auto;scrollbar-width:none;background:rgba(239,247,255,.97);border-bottom:1px solid #dbe8f7;backdrop-filter:blur(12px)}
  .mobile-product-nav::-webkit-scrollbar{display:none}
  .mobile-product-nav a{display:flex;align-items:center;justify-content:center;flex:0 0 auto;height:34px;padding:0 11px;border-radius:10px;color:#607991;font-size:11px;font-weight:760;white-space:nowrap}
  .mobile-product-nav a.active{color:#fff;background:linear-gradient(135deg,var(--blue-3),var(--blue-2));box-shadow:0 7px 16px rgba(23,104,230,.18)}
  .home-main,.single-product-main{margin-top:106px;padding:14px 15px 24px}

  /* Mobile home */
  .mobile-home-only{max-width:720px;margin:0 auto}
  .mobile-home-hero,.mobile-product-intro,.mobile-feature-card{border:1px solid #dde9f7;border-radius:24px;background:linear-gradient(180deg,#fff,#fbfdff);box-shadow:0 15px 34px rgba(35,76,130,.055)}
  .mobile-home-hero{padding:24px 19px 18px;text-align:left}
  .mobile-eyebrow{min-height:26px;font-size:8.5px}
  .mobile-home-hero .mobile-home-title{margin:13px 0 9px;color:var(--ink);font-size:34px;line-height:1.08;font-weight:950;letter-spacing:-.045em}
  .mobile-home-hero .mobile-home-title em{font-style:normal;color:var(--blue)}
  .mobile-home-hero>p{margin:0;color:#6f859b;font-size:12px;line-height:1.65}
  .mobile-home-actions,.mobile-product-actions{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:17px}
  .mobile-primary-btn,.mobile-secondary-btn{height:48px;font-size:13px}
  .mobile-visual-card{display:grid;grid-template-columns:minmax(0,1.26fr) minmax(0,.74fr);gap:12px;align-items:end;margin-top:22px}
  .mobile-visual-admin,.mobile-visual-phone{display:grid;grid-template-rows:minmax(0,1fr) 24px;align-items:end;justify-items:center;min-width:0}
  .mobile-visual-admin img,.mobile-visual-phone img{width:100%;height:220px;object-fit:contain;object-position:center bottom}
  .mobile-visual-caption{width:100%;padding-top:7px;text-align:center;color:#647d95;font-size:10.5px;font-weight:800}
  .mobile-home-products{padding:24px 2px 4px}
  .mobile-section-head span{display:block;color:var(--blue);font-size:9px;font-weight:850;letter-spacing:.14em}.mobile-section-head h2{margin:5px 0 4px;color:var(--ink);font-size:22px;font-weight:900;letter-spacing:-.025em}.mobile-section-head p{margin:0;color:#8b9caf;font-size:11px}
  .mobile-product-cards{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:14px}
  .mobile-product-card{min-height:86px;padding:14px;border:1px solid #dde9f7;border-radius:17px;background:#fff;box-shadow:0 8px 20px rgba(35,76,130,.04)}
  .mobile-product-card b,.mobile-product-card small,.mobile-product-card span{display:block}.mobile-product-card b{color:var(--ink);font-size:14px;font-weight:900}.mobile-product-card small{margin-top:4px;color:#8799ac;font-size:9.5px}.mobile-product-card span{margin-top:10px;color:var(--blue);font-size:10px;font-weight:800}.mobile-product-card-wide{grid-column:1/-1}
  .mobile-service-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;margin:14px 2px 0}.mobile-service-strip div{text-align:center;padding:12px 5px;border-radius:14px;background:#edf6ff}.mobile-service-strip b,.mobile-service-strip small{display:block}.mobile-service-strip b{color:var(--blue);font-size:12px}.mobile-service-strip small{margin-top:3px;color:#8194a8;font-size:8.5px}

  /* Mobile product */
  .mobile-product-only{max-width:720px;margin:0 auto}
  .mobile-product-intro{padding:19px}
  .mobile-product-header{display:flex;align-items:center;gap:12px}
  .mobile-product-number{display:grid;place-items:center;width:45px;height:45px;flex:0 0 45px;border-radius:14px;background:linear-gradient(145deg,var(--blue-3),#4994fb);color:#fff;font-size:12px;font-weight:900;box-shadow:0 8px 18px rgba(23,104,230,.18)}
  .mobile-product-header small{display:block;color:#8aa0b7;font-size:8px;font-weight:800;letter-spacing:.15em}.mobile-product-header .mobile-product-title{margin:2px 0 0;color:var(--ink);font-size:27px;line-height:1;font-weight:950;letter-spacing:-.035em}
  .mobile-product-intro>h2{margin:16px 0 7px;color:#1f3c59;font-size:20px;line-height:1.35;font-weight:880;letter-spacing:-.025em}
  .mobile-product-desc{margin:0;color:#788ba0;font-size:12px;line-height:1.72}
  .mobile-device-card{display:flex;flex-direction:column;align-items:center;gap:7px;margin-top:18px;padding:0;background:transparent;border:0;box-shadow:none}
  .mobile-device-card a.media-open{order:1;width:100%;display:flex;align-items:center;justify-content:center;min-width:0}
  .phone-card a.media-open{height:500px}.admin-card a.media-open{height:300px}
  .mobile-device-card img{width:100%;height:100%;object-fit:contain;object-position:center}
  .mobile-device-label{order:2;width:100%;text-align:center}.mobile-device-label b,.mobile-device-label span{display:block}.mobile-device-label b{color:#607a93;font-size:11px;font-weight:850}.mobile-device-label span{margin-top:2px;color:#9aa9b9;font-size:8.5px}
  .mobile-feature-card{margin-top:20px;padding:18px}.mobile-feature-card h3{margin:0 0 11px;color:var(--ink);font-size:17px;font-weight:900}.mobile-feature-card ul{list-style:none;margin:0;padding:0;display:grid;gap:7px}.mobile-feature-card li{position:relative;padding-left:22px;color:#526b84;font-size:11px;line-height:1.55}.mobile-feature-card li:before{content:"✓";position:absolute;left:0;top:0;display:grid;place-items:center;width:16px;height:16px;border-radius:50%;background:#edf6ff;color:var(--blue);font-size:9px;font-weight:900}
  .mobile-support-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin-top:14px}.mobile-support-grid div{min-width:0;padding:9px 6px;border:1px solid #e3edf8;border-radius:11px;background:#f8fbff;text-align:center}.mobile-support-grid span,.mobile-support-grid b{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mobile-support-grid span{color:#93a3b4;font-size:8px}.mobile-support-grid b{margin-top:3px;color:#5d748c;font-size:9px;font-weight:800}

  /* Mobile footer is simple and non-fixed */
  .site-footer{position:static;height:auto;margin-top:12px;padding:17px 15px;background:#eaf4ff;border-top:1px solid #dbe8f7}
  .footer-inner{width:100%;display:flex;flex-direction:column;align-items:center;gap:9px}.footer-links{display:none}.footer-brand{display:flex;align-items:center;gap:7px;color:var(--ink)}.footer-brand b{font-size:12px}.footer-contact{display:flex;flex-direction:column;align-items:center;gap:3px}.footer-contact a{color:#6c8299;font-size:9px}.copyright{color:#93a2b2;font-size:8.5px}

  /* Mobile conversion CTA */
  .floating-contact{position:fixed;z-index:1400;left:14px;right:14px;bottom:max(12px,env(safe-area-inset-bottom));width:auto}
  .contact-fab{width:100%;height:52px;justify-content:center;border-radius:15px;font-size:13px;box-shadow:0 12px 28px rgba(23,104,230,.26)}
  .contact-panel{position:fixed;left:14px;right:14px;bottom:76px;width:auto;transform:translateY(12px);transform-origin:bottom center}
  .contact-panel.open{transform:none}
  .modal{display:grid!important;padding:calc(58px + env(safe-area-inset-top)) 12px calc(18px + env(safe-area-inset-bottom))}
  .modal-content{width:100%;height:100%;max-height:calc(100dvh - 94px - env(safe-area-inset-top) - env(safe-area-inset-bottom));overflow:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch}
  .modal-content img{display:block;width:auto;height:auto;max-width:100%;max-height:100%;margin:auto;object-fit:contain;border-radius:16px}
  .modal-close{top:calc(10px + env(safe-area-inset-top));right:12px;width:40px;height:40px}
}

/* SEO V2 solution pages and natural internal links */
.hero-solution-links{display:flex;align-items:center;flex-wrap:wrap;gap:6px;margin-top:7px;font-size:10.5px;color:#8a9aae}
.hero-solution-links>span{font-weight:750;color:#7890a8;margin-right:2px}
.hero-solution-links a,.related-solution-link{color:var(--blue);font-weight:760}
.hero-solution-links a{padding:5px 8px;border:1px solid #d6e7fa;border-radius:8px;background:#f2f8ff}
.related-solution-link{display:inline-flex;margin-top:9px;font-size:10.5px}
.mobile-seo-links{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:10px}
.mobile-seo-links a{display:flex;align-items:center;justify-content:center;min-height:40px;padding:7px;border:1px solid #d7e7f9;border-radius:12px;background:#f6faff;color:#316fae;font-size:10.5px;font-weight:780;text-align:center}

html.seo-page{overflow:auto!important}
html.seo-page body{height:auto!important;min-height:100vh;overflow-x:hidden!important;overflow-y:auto!important}
.seo-solution-main{margin-top:var(--header-h);padding:44px 0 36px}
.seo-solution-hero{padding:34px 38px;border:1px solid var(--line);border-radius:28px;background:linear-gradient(135deg,#fff,#f4f9ff);box-shadow:var(--shadow)}
.seo-solution-hero h1{margin:14px 0 10px;color:var(--ink);font-size:38px;line-height:1.15;letter-spacing:-.04em}
.seo-solution-hero>p{max-width:850px;margin:0;color:#677e95;font-size:14px;line-height:1.85}
.seo-topic-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.seo-topic-tags span{padding:7px 11px;border:1px solid #d7e7f9;border-radius:999px;background:#f0f7ff;color:#3372b2;font-size:11px;font-weight:760}
.seo-info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:18px}
.seo-info-grid article{padding:22px;border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:0 10px 30px rgba(35,76,130,.05)}
.seo-info-grid b{display:block;margin-bottom:7px;color:var(--ink);font-size:16px}
.seo-info-grid p{margin:0;color:#73879c;font-size:12px;line-height:1.75}
.seo-related-section{margin-top:24px}
.seo-section-head span{color:var(--blue);font-size:9px;font-weight:850;letter-spacing:.13em}
.seo-section-head h2{margin:5px 0 13px;color:var(--ink);font-size:23px}
.seo-product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.seo-product-grid>a{display:grid;grid-template-columns:54px 1fr;gap:14px;align-items:start;padding:18px;border:1px solid var(--line);border-radius:20px;background:#fff;transition:.18s ease}
.seo-product-grid>a:hover{transform:translateY(-2px);border-color:#bfdafa;box-shadow:0 12px 28px rgba(35,76,130,.07)}
.seo-product-grid img{width:54px;height:54px;border-radius:14px;object-fit:cover}
.seo-product-grid b{color:var(--ink);font-size:15px}
.seo-product-grid p{margin:5px 0 8px;color:#7b8fa3;font-size:11px;line-height:1.65}
.seo-product-grid span{color:var(--blue);font-size:10.5px;font-weight:780}
.seo-answer-card{margin-top:20px;padding:24px 28px;border:1px solid #d4e5f8;border-radius:22px;background:#edf6ff}
.seo-answer-card h2{margin:0 0 7px;color:var(--ink);font-size:19px}
.seo-answer-card p{display:inline-block;max-width:850px;margin:0 20px 0 0;color:#657d94;font-size:12px;line-height:1.75;vertical-align:middle}
.seo-answer-card .btn{vertical-align:middle}
.seo-solution-body .site-footer{position:static!important;height:auto!important;min-height:58px;margin:0!important}
.seo-solution-body .footer-inner{min-height:58px}
.copyright a{color:#6f88a1;text-decoration:underline;text-underline-offset:2px}
.privacy-sections{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:18px}
.privacy-sections article{padding:22px 24px;border:1px solid var(--line);border-radius:20px;background:#fff}
.privacy-sections h2{margin:0 0 8px;color:var(--ink);font-size:17px}
.privacy-sections p{margin:0;color:#6f8499;font-size:12px;line-height:1.8}
.privacy-sections a{color:var(--blue);font-weight:720}
.privacy-sections code{padding:2px 5px;border-radius:5px;background:#eef5fc;color:#35638f}

@media (max-width:820px){
  .hero-solution-links{display:none}
  .related-solution-link{margin:7px 0 0;font-size:10px}
  .seo-solution-main{margin-top:134px;padding:18px 0 18px}
  .seo-solution-main .container{width:calc(100% - 28px)}
  .seo-solution-hero{padding:23px 19px;border-radius:21px}
  .seo-solution-hero h1{font-size:28px}
  .seo-solution-hero>p{font-size:12px;line-height:1.75}
  .seo-topic-tags{margin-top:13px;gap:6px}
  .seo-topic-tags span{padding:6px 9px;font-size:9.5px}
  .seo-info-grid,.seo-product-grid{grid-template-columns:1fr;gap:9px}
  .privacy-sections{grid-template-columns:1fr;gap:9px;margin-top:11px}
  .privacy-sections article{padding:17px;border-radius:16px}
  .seo-info-grid{margin-top:11px}
  .seo-info-grid article{padding:17px;border-radius:16px}
  .seo-related-section{margin-top:18px}
  .seo-product-grid>a{padding:14px;border-radius:16px}
  .seo-answer-card{margin-top:13px;padding:18px;border-radius:17px}
  .seo-answer-card p{display:block;margin:0 0 13px}
  .seo-solution-body .site-footer{margin-bottom:82px!important}
}

/* V24 final merged polish: paired displays, compact footer and safe mobile contact */
@media (min-width:821px){
  .dual-display-stage{
    align-items:end!important;
  }
  .dual-display-item{
    height:460px!important;
    grid-template-rows:minmax(0,1fr) 20px!important;
    row-gap:4px!important;
    align-items:end!important;
  }
  .dual-display-item img{
    align-self:end!important;
    margin:0 auto!important;
  }
  .dual-display-item .image-caption{
    align-self:start!important;
    margin:0!important;
    color:#71869b!important;
    font-size:11px!important;
    line-height:20px!important;
    font-weight:720!important;
    text-align:center!important;
  }
  .footer-inner{gap:12px!important}
  .footer-contact{gap:5px!important}
}

@media (max-width:820px){
  html{scroll-padding-bottom:88px}
  .mobile-product-home-visual{
    align-items:end!important;
  }
  .mobile-product-home-visual .mobile-visual-admin,
  .mobile-product-home-visual .mobile-visual-phone{
    grid-template-rows:minmax(0,1fr) 18px!important;
    row-gap:3px!important;
  }
  .mobile-product-home-visual .mobile-visual-caption{
    align-self:start!important;
    margin:0!important;
    color:#71869b!important;
    font-size:10px!important;
    line-height:18px!important;
    font-weight:720!important;
    text-align:center!important;
  }
  .site-footer{
    margin-top:10px!important;
    margin-bottom:82px!important;
    padding-top:13px!important;
    padding-bottom:13px!important;
  }
  .footer-inner{gap:5px!important}
  .footer-contact{gap:1px!important}
  .floating-contact{
    bottom:max(10px,env(safe-area-inset-bottom))!important;
  }
}

@media (max-width:430px){
  .mobile-home-hero .mobile-home-title{font-size:31px}
  .mobile-visual-admin img,.mobile-visual-phone img{height:190px}
  .phone-card a.media-open{height:440px}.admin-card a.media-open{height:260px}
}
@media (max-width:370px){
  .mobile-product-nav{gap:4px;padding-left:9px;padding-right:9px}.mobile-product-nav a{padding:0 9px;font-size:10px}
  .mobile-home-hero{padding-left:16px;padding-right:16px}.mobile-home-hero .mobile-home-title{font-size:28px}.mobile-product-cards{grid-template-columns:1fr}.mobile-product-card-wide{grid-column:auto}
  .mobile-home-actions,.mobile-product-actions{grid-template-columns:1fr}.mobile-visual-admin img,.mobile-visual-phone img{height:170px}
  .phone-card a.media-open{height:400px}.admin-card a.media-open{height:240px}
}

/* Accessibility / motion */
:focus-visible{outline:3px solid rgba(23,104,230,.28);outline-offset:3px}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* Dynamic navigation: additional products remain reachable without breaking the header. */
@media (min-width:821px){
  .top-nav{max-width:calc(100vw - 250px);overflow-x:auto;overflow-y:hidden;scrollbar-width:thin;scrollbar-color:#bfd6ef transparent}
  .top-nav::-webkit-scrollbar{height:3px}.top-nav::-webkit-scrollbar-thumb{background:#bfd6ef;border-radius:999px}
}


/* V25.5 — 预留联系方式表单 */
.contact-reserve-form{margin-top:12px;padding-top:4px}
.reserve-divider{display:flex;align-items:center;gap:10px;margin:10px 0 10px;color:#71869c;font-size:11px;font-weight:800}
.reserve-divider:before,.reserve-divider:after{content:"";height:1px;flex:1;background:#e3edf8}
.reserve-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.contact-reserve-form input,.contact-reserve-form textarea{
  width:100%;border:1px solid #dbe8f7;background:#fbfdff;color:#29445f;border-radius:11px;
  padding:10px 11px;font:inherit;font-size:12px;outline:none;transition:border-color .16s,box-shadow .16s
}
.contact-reserve-form textarea{margin-top:8px;resize:vertical;min-height:64px}
.contact-reserve-form input:focus,.contact-reserve-form textarea:focus{border-color:#9fc5f6;box-shadow:0 0 0 3px rgba(49,127,234,.08)}
.contact-reserve-form button{
  width:100%;height:40px;margin-top:8px;border:0;border-radius:11px;color:#fff;font:inherit;font-size:12px;font-weight:850;cursor:pointer;
  background:linear-gradient(135deg,#1566e4,#5ea6ff);box-shadow:0 8px 18px rgba(23,104,230,.16)
}
.contact-reserve-form button:disabled{opacity:.65;cursor:wait}
.reserve-status{min-height:18px;margin:7px 2px 0;color:#8295a8;font-size:10.5px;line-height:1.45;text-align:center}
.reserve-status.ok{color:#26855a}
.reserve-privacy-note a{
  color:var(--blue);
  text-decoration:underline;
  text-decoration-thickness:1px;
  text-underline-offset:2px;
}
.reserve-privacy-note a:focus-visible{
  outline:2px solid var(--blue);
  outline-offset:3px;
  border-radius:3px;
}
@media(max-width:820px){
  .reserve-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .contact-reserve-form input,.contact-reserve-form textarea{font-size:13px}
  .contact-reserve-form button{height:44px;font-size:13px}
}


/* =========================================================
   V24 NAV ICONS + FRAMED ITEMS + FULL MOBILE PRODUCT NAV
   ========================================================= */

/* Desktop/top navigation: every item gets its own compact frame */
.top-nav{
  gap:6px;
  padding:6px;
}
.top-nav a{
  gap:6px;
  min-width:0;
  height:38px;
  padding:0 10px;
  border:1px solid #d9e7f6;
  border-radius:12px;
  background:rgba(255,255,255,.86);
  box-shadow:0 3px 10px rgba(35,76,130,.035);
}
.top-nav a:hover{
  border-color:#bdd8f8;
}
.top-nav a.active{
  border-color:transparent;
}
.top-nav a[data-nav="contact"]{
  border-color:#cfe2f8;
}
.nav-product-icon,.nav-ui-icon{
  display:block;
  flex:0 0 auto;
  width:20px;
  height:20px;
  border-radius:6px;
  object-fit:cover;
}
.nav-ui-icon{
  border-radius:5px;
}
.top-nav a span{
  display:block;
  min-width:0;
  white-space:nowrap;
}

/* Footer/software icons */
.contact-software-icon{
  display:block;
  flex:0 0 auto;
  width:18px;
  height:18px;
  border-radius:5px;
}
.footer-contact a{
  gap:7px;
}
.channel-icon.software{
  padding:0;
  overflow:hidden;
  background:transparent;
}
.channel-icon.software img{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
}

/* Mobile: all products visible at once, no horizontal swipe */
@media (max-width:820px){
  body{
    padding-bottom:calc(82px + env(safe-area-inset-bottom));
  }

  .site-header{
    height:60px;
  }

  .mobile-product-nav{
    position:fixed;
    z-index:950;
    top:60px;
    left:0;
    right:0;
    height:auto;
    min-height:86px;
    display:grid!important;
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:6px;
    padding:7px 10px 8px;
    overflow:visible!important;
    background:rgba(242,248,255,.985);
    border-bottom:1px solid #dbe8f7;
    box-shadow:0 5px 16px rgba(31,70,120,.045);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
  }

  .mobile-product-nav a{
    width:100%;
    min-width:0;
    height:34px;
    padding:0 5px;
    gap:4px;
    border:1px solid #d8e7f6;
    border-radius:9px;
    background:#fff;
    color:#5d758d;
    font-size:9.5px;
    font-weight:790;
    box-shadow:0 2px 7px rgba(35,76,130,.03);
    white-space:nowrap;
    overflow:hidden;
  }

  .mobile-product-nav a span{
    min-width:0;
    overflow:hidden;
    text-overflow:ellipsis;
  }

  .mobile-product-nav a.active{
    border-color:transparent;
    color:#fff;
  }

  .mobile-product-nav .nav-product-icon,
  .mobile-product-nav .nav-ui-icon{
    width:18px;
    height:18px;
    border-radius:5px;
  }

  /* product nav now occupies two rows beneath header */
  .home-main,.single-product-main{
    margin-top:146px!important;
    padding-top:12px;
  }

  /* top hamburger menu remains available for contact entry */
  .top-nav{
    top:66px;
  }

  .footer-contact a{
    display:flex;
    align-items:center;
    justify-content:center;
    gap:7px;
  }

  .footer-contact .contact-software-icon{
    width:19px;
    height:19px;
  }
}

@media (max-width:390px){
  .mobile-product-nav{
    gap:5px;
    padding-left:7px;
    padding-right:7px;
  }
  .mobile-product-nav a{
    padding:0 4px;
    font-size:9px;
  }
  .mobile-product-nav .nav-product-icon,
  .mobile-product-nav .nav-ui-icon{
    width:17px;
    height:17px;
  }
}

@media (max-width:340px){
  .mobile-product-nav a{
    font-size:8.5px;
    gap:3px;
  }
  .mobile-product-nav .nav-product-icon,
  .mobile-product-nav .nav-ui-icon{
    width:16px;
    height:16px;
  }
}

/* V24 contact icon fix */
.channel-icon.software{
  padding:0!important;
  overflow:hidden!important;
  background:transparent!important;
  border-radius:11px!important;
}
.channel-icon.software img{
  display:block!important;
  width:100%!important;
  height:100%!important;
  object-fit:cover!important;
}


/* =========================================================
   V24 CONTACT ICON FORCE FALLBACK
   即使浏览器仍执行旧 JS，也强制按动态联系方式 key 显示正确图标
   phone = UMI客服 / whatsapp = WhatsApp / wechat = QQ
   ========================================================= */
.contact-channel[data-dynamic-contact="phone"] .channel-icon,
.contact-channel[data-dynamic-contact="whatsapp"] .channel-icon,
.contact-channel[data-dynamic-contact="wechat"] .channel-icon{
  font-size:0!important;
  color:transparent!important;
  overflow:hidden!important;
  padding:0!important;
  background-color:transparent!important;
  background-position:center!important;
  background-repeat:no-repeat!important;
  background-size:cover!important;
  border:0!important;
}

.contact-channel[data-dynamic-contact="phone"] .channel-icon{
  background-image:url("./assets/project-icons/umi.jpg")!important;
}

.contact-channel[data-dynamic-contact="whatsapp"] .channel-icon{
  background-image:url("./assets/ui-icons/whatsapp.svg")!important;
}

.contact-channel[data-dynamic-contact="wechat"] .channel-icon{
  background-image:url("./assets/ui-icons/qq.svg")!important;
}

/* 新 JS 已插入 img 时同样保持正确显示 */
.contact-channel[data-dynamic-contact] .channel-icon.software img{
  display:block!important;
  width:100%!important;
  height:100%!important;
  object-fit:cover!important;
}


/* =========================================================
   TTD V24 MOBILE FINAL LAUNCH OPTIMIZATION
   仅优化 <=820px 手机端；桌面端保持原样
   ========================================================= */
@media (max-width:820px){

  /* ---------- 1. 顶部区域：压缩高度、8 项全部可见 ---------- */
  :root{--header-h:58px}

  html{
    scroll-padding-top:136px;
    -webkit-text-size-adjust:100%;
    text-size-adjust:100%;
  }

  body{
    overflow-x:hidden;
    padding-bottom:calc(76px + env(safe-area-inset-bottom));
  }

  .site-header{
    height:58px!important;
    padding-top:env(safe-area-inset-top);
    background:rgba(248,252,255,.985);
    box-shadow:0 5px 18px rgba(31,70,120,.055);
  }

  .nav-wrap{
    height:58px!important;
    padding:0 11px!important;
  }

  .brand-mark{
    width:36px!important;
    height:36px!important;
    border-radius:11px!important;
    font-size:11px!important;
  }

  .brand-text{
    font-size:14.5px!important;
  }

  .nav-toggle{
    width:42px!important;
    height:42px!important;
    padding:9px!important;
  }

  .mobile-product-nav{
    position:fixed!important;
    z-index:950!important;
    top:58px!important;
    left:0!important;
    right:0!important;
    min-height:76px!important;
    height:76px!important;
    display:grid!important;
    grid-template-columns:repeat(4,minmax(0,1fr))!important;
    grid-template-rows:repeat(2,1fr)!important;
    gap:5px!important;
    padding:5px 8px 6px!important;
    overflow:hidden!important;
    overscroll-behavior:none!important;
    background:rgba(242,248,255,.985)!important;
    border-bottom:1px solid #dbe8f7!important;
    box-shadow:0 5px 14px rgba(31,70,120,.045)!important;
    backdrop-filter:blur(12px)!important;
    -webkit-backdrop-filter:blur(12px)!important;
  }

  .mobile-product-nav::-webkit-scrollbar{display:none!important}

  .mobile-product-nav a{
    width:100%!important;
    min-width:0!important;
    height:32px!important;
    min-height:32px!important;
    padding:0 4px!important;
    gap:3.5px!important;
    border:1px solid #d8e7f6!important;
    border-radius:9px!important;
    background:#fff!important;
    color:#58728c!important;
    box-shadow:0 2px 7px rgba(35,76,130,.025)!important;
    font-size:9px!important;
    line-height:1!important;
    font-weight:800!important;
    white-space:nowrap!important;
    overflow:hidden!important;
    touch-action:manipulation;
    -webkit-tap-highlight-color:transparent;
  }

  .mobile-product-nav a span{
    min-width:0!important;
    overflow:hidden!important;
    text-overflow:ellipsis!important;
    white-space:nowrap!important;
  }

  .mobile-product-nav a.active{
    color:#fff!important;
    border-color:transparent!important;
    background:linear-gradient(135deg,var(--blue-3),var(--blue-2))!important;
    box-shadow:0 5px 12px rgba(23,104,230,.16)!important;
  }

  .mobile-product-nav .nav-product-icon,
  .mobile-product-nav .nav-ui-icon{
    width:16px!important;
    height:16px!important;
    flex:0 0 16px!important;
    border-radius:4.5px!important;
    object-fit:cover!important;
  }

  .home-main,.single-product-main{
    margin-top:134px!important;
    padding:11px 10px 22px!important;
  }

  /* ---------- 2. 首屏卡片密度 ---------- */
  .container{width:calc(100% - 20px)!important}

  .mobile-home-hero,
  .mobile-product-intro,
  .mobile-feature-card{
    border-radius:20px!important;
  }

  .mobile-home-hero{
    padding:19px 15px 16px!important;
  }

  .mobile-home-hero .mobile-home-title{
    margin:10px 0 8px!important;
    font-size:clamp(28px,8.7vw,32px)!important;
    line-height:1.08!important;
  }

  .mobile-home-hero>p{
    font-size:12.25px!important;
    line-height:1.68!important;
  }

  .mobile-product-intro{
    padding:16px!important;
  }

  .mobile-product-header{
    gap:10px!important;
  }

  .mobile-product-header .mobile-product-title{
    font-size:24px!important;
  }

  .mobile-product-intro>h2{
    margin:13px 0 6px!important;
    font-size:18.5px!important;
  }

  .mobile-product-desc{
    font-size:12.25px!important;
    line-height:1.68!important;
  }

  .mobile-home-actions,
  .mobile-product-actions{
    margin-top:14px!important;
    gap:8px!important;
  }

  .mobile-primary-btn,
  .mobile-secondary-btn{
    height:46px!important;
    min-height:46px!important;
    border-radius:12px!important;
    font-size:12.5px!important;
    touch-action:manipulation;
    -webkit-tap-highlight-color:transparent;
  }

  .mobile-primary-btn:active,
  .mobile-secondary-btn:active,
  .mobile-product-card:active,
  .contact-channel:active,
  .mobile-product-nav a:active{
    transform:scale(.985);
  }

  /* ---------- 3. 产品图：完整、清晰、不过度占屏 ---------- */
  .mobile-device-card{
    margin-top:15px!important;
    gap:7px!important;
  }

  .mobile-device-card a.media-open,
  .phone-card a.media-open,
  .admin-card a.media-open{
    width:100%!important;
    height:auto!important;
    min-height:0!important;
    max-height:none!important;
  }

  .mobile-device-card img{
    display:block!important;
    width:auto!important;
    max-width:100%!important;
    height:auto!important;
    object-fit:contain!important;
    object-position:center!important;
    margin:0 auto!important;
  }

  .phone-card img{max-height:66dvh!important}
  .admin-card img{max-height:46dvh!important}

  .mobile-device-label b{font-size:11px!important}
  .mobile-device-label span{font-size:8.75px!important}

  /* ---------- 4. 产品列表与特点 ---------- */
  .mobile-home-products{
    padding:20px 0 2px!important;
  }

  .mobile-product-cards{
    gap:8px!important;
    margin-top:12px!important;
  }

  .mobile-product-card{
    min-height:86px!important;
    padding:13px!important;
    border-radius:15px!important;
    touch-action:manipulation;
  }

  .mobile-product-card b{font-size:13.5px!important}
  .mobile-product-card small{font-size:9.75px!important}
  .mobile-product-card span{font-size:10px!important}

  .mobile-feature-card{
    margin-top:17px!important;
    padding:16px!important;
  }

  .mobile-feature-card h3{
    margin-bottom:10px!important;
    font-size:16.5px!important;
  }

  .mobile-feature-card li{
    font-size:11.25px!important;
    line-height:1.58!important;
  }

  /* ---------- 5. 在线客服：真正 Bottom Sheet ---------- */
  .floating-contact{
    left:10px!important;
    right:10px!important;
    bottom:max(8px,env(safe-area-inset-bottom))!important;
  }

  .contact-fab{
    height:50px!important;
    border-radius:14px!important;
    font-size:13px!important;
    box-shadow:0 10px 26px rgba(23,104,230,.24)!important;
  }

  .contact-panel{
    position:fixed!important;
    z-index:1500!important;
    left:8px!important;
    right:8px!important;
    bottom:calc(66px + env(safe-area-inset-bottom))!important;
    width:auto!important;
    max-height:min(76dvh,640px)!important;
    display:flex!important;
    flex-direction:column!important;
    border-radius:20px!important;
    overflow:hidden!important;
    transform:translateY(14px) scale(.995)!important;
    transform-origin:bottom center!important;
    box-shadow:0 22px 54px rgba(25,55,92,.22)!important;
  }

  .contact-panel.open{
    transform:none!important;
  }

  .contact-panel-head{
    position:relative!important;
    z-index:2!important;
    flex:0 0 auto!important;
    grid-template-columns:40px 1fr 32px!important;
    padding:12px!important;
  }

  .contact-avatar{
    width:40px!important;
    height:40px!important;
    border-radius:12px!important;
  }

  .contact-panel-body{
    flex:1 1 auto!important;
    min-height:0!important;
    overflow-y:auto!important;
    overscroll-behavior:contain!important;
    -webkit-overflow-scrolling:touch!important;
    padding:10px 10px calc(12px + env(safe-area-inset-bottom))!important;
  }

  .service-message{
    margin-bottom:9px!important;
    padding:10px 11px!important;
    font-size:10.75px!important;
  }

  /* 五种联系方式完全统一 */
  .contact-channel{
    min-height:58px!important;
    grid-template-columns:40px minmax(0,1fr) auto!important;
    gap:9px!important;
    padding:8px 9px!important;
    margin-top:7px!important;
    border-radius:13px!important;
    touch-action:manipulation;
  }

  .channel-icon,
  .channel-icon.software{
    width:40px!important;
    height:40px!important;
    border-radius:11px!important;
    flex:0 0 40px!important;
  }

  .channel-icon.software img{
    width:100%!important;
    height:100%!important;
    object-fit:cover!important;
  }

  .contact-channel b{
    font-size:11.25px!important;
    line-height:1.25!important;
  }

  .contact-channel small{
    margin-top:2px!important;
    font-size:9px!important;
    line-height:1.25!important;
    word-break:break-all;
  }

  .contact-channel em{
    font-size:9.5px!important;
    white-space:nowrap!important;
  }

  /* 表单：iPhone 不自动放大，提交按钮清晰 */
  .contact-reserve-form{
    margin-top:10px!important;
    padding-bottom:2px!important;
  }

  .reserve-divider{
    margin:10px 0!important;
  }

  .reserve-grid{
    grid-template-columns:repeat(2,minmax(0,1fr))!important;
    gap:8px!important;
  }

  .contact-reserve-form input,
  .contact-reserve-form textarea{
    font-size:16px!important;
    border-radius:11px!important;
  }

  .contact-reserve-form textarea{
    min-height:70px!important;
  }

  .contact-reserve-form button{
    position:sticky!important;
    bottom:0!important;
    z-index:3!important;
    min-height:46px!important;
    height:46px!important;
    margin-top:8px!important;
    border-radius:12px!important;
    box-shadow:0 8px 20px rgba(23,104,230,.2)!important;
  }

  /* ---------- 6. Footer 降低视觉权重 ---------- */
  .site-footer{
    margin-top:10px!important;
    padding:14px 10px calc(16px + env(safe-area-inset-bottom))!important;
  }

  .footer-inner{gap:7px!important}

  .footer-contact{
    width:100%!important;
    gap:4px!important;
  }

  .footer-contact a{
    width:100%!important;
    min-height:31px!important;
    justify-content:center!important;
    padding:0 9px!important;
    font-size:9.5px!important;
    border-radius:9px!important;
  }

  .footer-contact .contact-software-icon{
    width:17px!important;
    height:17px!important;
  }
}

/* 390 宽度以下：继续压缩但保持 8 项全部展示 */
@media (max-width:390px){
  .mobile-product-nav{
    padding-left:6px!important;
    padding-right:6px!important;
    gap:4px!important;
  }
  .mobile-product-nav a{
    font-size:8.6px!important;
    padding:0 3px!important;
  }
  .mobile-product-nav .nav-product-icon,
  .mobile-product-nav .nav-ui-icon{
    width:15px!important;
    height:15px!important;
    flex-basis:15px!important;
  }
}

/* 极小屏 350px 以下仍坚持 4×2，不做横向滚动 */
@media (max-width:350px){
  .mobile-product-nav a{
    font-size:8.1px!important;
    gap:2px!important;
  }
  .mobile-product-nav .nav-product-icon,
  .mobile-product-nav .nav-ui-icon{
    width:14px!important;
    height:14px!important;
    flex-basis:14px!important;
  }
  .reserve-grid{
    grid-template-columns:1fr!important;
  }
  .mobile-home-actions,
  .mobile-product-actions{
    grid-template-columns:1fr!important;
  }
}


/* =========================================================
   V24 MOBILE PRODUCT VISUAL — EXACT HOME STYLE / COMPACT
   ========================================================= */
@media (max-width:820px){
  /* Product detail uses the same visual card language as the homepage */
  .mobile-product-home-visual{
    display:grid!important;
    grid-template-columns:minmax(0,1.26fr) minmax(0,.74fr)!important;
    gap:12px!important;
    align-items:end!important;
    margin-top:18px!important;
    padding:0!important;
    border:0!important;
    border-radius:0!important;
    background:transparent!important;
    box-shadow:none!important;
  }

  .mobile-product-home-visual .mobile-visual-admin,
  .mobile-product-home-visual .mobile-visual-phone{
    display:grid!important;
    grid-template-rows:minmax(0,1fr) 24px!important;
    align-items:end!important;
    justify-items:center!important;
    min-width:0!important;
    height:auto!important;
    min-height:0!important;
    max-height:none!important;
    overflow:visible!important;
    border-radius:0!important;
    background:transparent!important;
  }

  .mobile-product-home-visual .mobile-visual-admin img,
  .mobile-product-home-visual .mobile-visual-phone img{
    display:block!important;
    width:100%!important;
    height:220px!important;
    max-height:220px!important;
    object-fit:contain!important;
    object-position:center bottom!important;
    margin:0 auto!important;
  }

  .mobile-product-home-visual .mobile-visual-phone img{
    width:auto!important;
    max-width:100%!important;
  }

  .mobile-product-home-visual .mobile-visual-caption{
    width:100%!important;
    padding-top:7px!important;
    text-align:center!important;
    color:#647d95!important;
    font-size:10.5px!important;
    font-weight:800!important;
  }

  /* UMI / SG only have one source image: keep it compact, never full-screen */
  .mobile-product-home-single{
    grid-template-columns:1fr!important;
  }

  .mobile-product-home-single .mobile-visual-wide{
    display:grid!important;
    grid-template-rows:minmax(0,1fr) 24px!important;
    justify-items:center!important;
    width:100%!important;
    min-height:0!important;
    max-height:none!important;
    overflow:visible!important;
  }

  .mobile-product-home-single .mobile-visual-wide img{
    display:block!important;
    width:100%!important;
    height:220px!important;
    max-height:220px!important;
    object-fit:contain!important;
    object-position:center!important;
    margin:0 auto!important;
  }

  /* old large-image classes must not affect the new layout */
  .mobile-product-home-visual.mobile-device-card,
  .mobile-product-home-visual.mobile-product-visual-card{
    display:grid!important;
  }

  .mobile-product-home-visual + .mobile-feature-card{
    margin-top:18px!important;
  }
}

@media (max-width:430px){
  .mobile-product-home-visual{
    gap:10px!important;
  }
  .mobile-product-home-visual .mobile-visual-admin img,
  .mobile-product-home-visual .mobile-visual-phone img,
  .mobile-product-home-single .mobile-visual-wide img{
    height:190px!important;
    max-height:190px!important;
  }
}

@media (max-width:350px){
  .mobile-product-home-visual{
    gap:8px!important;
  }
  .mobile-product-home-visual .mobile-visual-admin img,
  .mobile-product-home-visual .mobile-visual-phone img,
  .mobile-product-home-single .mobile-visual-wide img{
    height:168px!important;
    max-height:168px!important;
  }
}


/* V24 top/mobile nav short-title update */
@media (max-width:820px){
  .mobile-product-nav{
    grid-template-columns:repeat(4,minmax(0,1fr))!important;
    grid-template-rows:repeat(2,1fr)!important;
  }
  .mobile-product-nav a{
    overflow:hidden!important;
  }
}


/* V24 nav 9-title correction: mobile still shows all 8 page items, no horizontal swipe */
@media (max-width:820px){
  .mobile-product-nav{
    grid-template-columns:repeat(4,minmax(0,1fr))!important;
    grid-template-rows:repeat(2,1fr)!important;
  }
}


/* V24.08.20 UMI + SG FORCE DISPLAY UPDATE */
@media (min-width:821px){
  .dual-display-stage{
    display:grid!important;
    grid-template-columns:minmax(0,1.35fr) minmax(150px,.65fr)!important;
    gap:14px!important;
    align-items:center!important;
    justify-items:stretch!important;
  }
  .dual-display-item{
    min-width:0!important;
    display:grid!important;
    grid-template-rows:minmax(0,1fr) 24px!important;
    align-items:center!important;
    justify-items:center!important;
  }
  .dual-display-item img{
    display:block!important;
    max-width:100%!important;
    max-height:430px!important;
    width:auto!important;
    height:auto!important;
    object-fit:contain!important;
  }
  .dual-display-phone img{
    max-height:470px!important;
  }
}

@media (max-width:820px){
  .mobile-product-home-visual{
    display:grid!important;
    grid-template-columns:minmax(0,1.28fr) minmax(0,.72fr)!important;
    gap:10px!important;
    align-items:end!important;
  }
  .mobile-product-home-visual .mobile-visual-admin,
  .mobile-product-home-visual .mobile-visual-phone{
    display:grid!important;
    grid-template-rows:minmax(0,1fr) 22px!important;
    align-items:end!important;
    justify-items:center!important;
    min-width:0!important;
    height:205px!important;
    overflow:hidden!important;
  }
  .mobile-product-home-visual .mobile-visual-admin img,
  .mobile-product-home-visual .mobile-visual-phone img{
    display:block!important;
    width:100%!important;
    height:178px!important;
    max-height:178px!important;
    object-fit:contain!important;
    object-position:center!important;
  }
  .mobile-product-home-visual .mobile-visual-phone img{
    width:auto!important;
    max-width:100%!important;
  }
}

/* V24 final merged polish (final cascade position) */
@media (min-width:821px){
  .dual-display-stage{align-items:end!important}
  .dual-display-item{height:460px!important;grid-template-rows:minmax(0,1fr) 20px!important;row-gap:4px!important;align-items:end!important}
  .dual-display-item img{align-self:end!important;margin:0 auto!important}
  .dual-display-item .image-caption{align-self:start!important;margin:0!important;color:#71869b!important;font-size:11px!important;line-height:20px!important;font-weight:720!important;text-align:center!important}
  .footer-inner{gap:12px!important}
  .footer-contact{gap:5px!important}
}
@media (max-width:820px){
  html{scroll-padding-bottom:88px}
  .mobile-product-home-visual{align-items:end!important}
  .mobile-product-home-visual .mobile-visual-admin,.mobile-product-home-visual .mobile-visual-phone{grid-template-rows:minmax(0,1fr) 18px!important;row-gap:3px!important}
  .mobile-product-home-visual .mobile-visual-caption{align-self:start!important;margin:0!important;color:#71869b!important;font-size:10px!important;line-height:18px!important;font-weight:720!important;text-align:center!important}
  .site-footer{margin-top:10px!important;margin-bottom:82px!important;padding-top:13px!important;padding-bottom:13px!important}
  .footer-inner{gap:5px!important}
  .footer-contact{gap:1px!important}
  .floating-contact{bottom:max(10px,env(safe-area-inset-bottom))!important}
}

/* V25 production: safe areas, readable mobile navigation and resilient layouts */
@media (max-width:820px){
  html{
    scroll-padding-top:calc(154px + env(safe-area-inset-top))!important;
  }
  body{
    padding-bottom:0!important;
  }
  .site-header{
    height:calc(58px + env(safe-area-inset-top))!important;
    padding-top:env(safe-area-inset-top)!important;
  }
  .nav-wrap{
    height:58px!important;
  }
  .top-nav{
    top:calc(64px + env(safe-area-inset-top))!important;
  }
  .mobile-product-nav{
    top:calc(58px + env(safe-area-inset-top))!important;
    height:96px!important;
    min-height:96px!important;
    grid-template-rows:repeat(2,40px)!important;
  }
  .mobile-product-nav a{
    height:40px!important;
    min-height:40px!important;
    font-size:10px!important;
  }
  .home-main,
  .single-product-main,
  .seo-solution-main{
    margin-top:calc(154px + env(safe-area-inset-top))!important;
  }
  .site-footer,
  .seo-solution-body .site-footer{
    margin-bottom:calc(82px + env(safe-area-inset-bottom))!important;
  }
  .contact-panel{
    bottom:calc(66px + env(safe-area-inset-bottom))!important;
    max-height:min(76vh,640px)!important;
    max-height:min(76dvh,640px)!important;
    overflow:hidden!important;
  }
  .copyright,
  .mobile-product-header small,
  .mobile-support-grid span,
  .mobile-device-label span{
    color:#607991!important;
  }
}

@media (min-width:821px) and (max-height:720px){
  html,
  body{
    height:auto!important;
    min-height:100%!important;
    overflow-x:hidden!important;
    overflow-y:auto!important;
  }
  .home-main,
  .single-product-main{
    height:auto!important;
    min-height:650px!important;
    overflow:visible!important;
  }
  .site-footer{
    position:static!important;
  }

  /* UMI / SG use two differently shaped screenshots. Keep a full-height card
     and let the short viewport scroll instead of clipping either image. */
  .dual-product-grid{
    height:590px!important;
    min-height:590px!important;
    overflow:hidden!important;
  }
}

/* V25.5 final responsive safeguards */
@media (min-width:821px) and (max-width:900px){
  .nav-wrap{gap:10px!important}
  .brand-text{display:none!important}
  .top-nav{gap:3px!important;padding:4px!important}
  .top-nav a{
    height:34px!important;
    gap:3px!important;
    padding:0 5px!important;
    font-size:10px!important;
  }
  .top-nav .nav-product-icon,
  .top-nav .nav-ui-icon{
    width:18px!important;
    height:18px!important;
    flex-basis:18px!important;
  }
}

@media (max-width:820px){
  .contact-panel-head{grid-template-columns:40px minmax(0,1fr) 40px!important}
  .contact-panel-close{width:40px!important;height:40px!important}
  .footer-contact a{min-height:36px!important}
  .mobile-product-header small,
  .mobile-support-grid span,
  .mobile-device-label span{font-size:9.5px!important}
}

@media (max-width:350px){
  .reserve-grid{grid-template-columns:1fr!important}
}

/* V25.6 — dialog isolation, stronger focus and readable compact text */
body.has-open-dialog{overflow:hidden!important}
body.has-open-dialog [aria-hidden="true"]{pointer-events:none;user-select:none}
:where(a,button,input,textarea,select,[tabindex]):focus-visible{
  outline:3px solid #075fce!important;
  outline-offset:3px!important;
}
.contact-panel-head small,
.service-message,
.contact-channel small,
.reserve-status,
.reserve-privacy-note{color:#5f758b}
.contact-reserve-form input::placeholder,
.contact-reserve-form textarea::placeholder{color:#63788e;opacity:1}
.contact-reserve-form [aria-invalid="true"]{
  border-color:#c43b3b!important;
  box-shadow:0 0 0 3px rgba(196,59,59,.12)!important;
}
.reserve-status{
  scroll-margin-block-end:68px;
  overflow-wrap:anywhere;
  font-variant-numeric:tabular-nums;
}
.reserve-status.uncertain{color:#8a4b00}

@media (max-width:820px){
  .contact-panel-head small,
  .service-message{font-size:11px!important;color:#536b82!important}
  .contact-channel small{font-size:10px!important;color:#556e86!important}
  .contact-channel em{font-size:10px!important;color:#075fce!important}
  .reserve-status{font-size:11px!important;color:#536b82!important}
  .reserve-status.uncertain{color:#8a4b00!important}
  .mobile-section-head p,
  .mobile-product-card small,
  .mobile-device-label span,
  .mobile-support-grid span,
  .mobile-product-header small,
  .footer-contact a,
  .copyright{color:#526b84!important}
  .footer-contact a{font-size:10px!important}
  .copyright{font-size:9.5px!important}
}

@media (max-width:390px){
  .mobile-product-nav a{font-size:9.25px!important;color:#405b76!important}
}

@media (max-width:350px){
  .mobile-product-nav a{font-size:9px!important}
}

/* V25.6.1 — clearer current-page navigation and touch feedback */
.top-nav a.active{
  border-color:#176fe6;
  box-shadow:
    0 7px 18px rgba(23,104,230,.25),
    inset 0 0 0 1px rgba(255,255,255,.42);
}
.top-nav a.active .nav-ui-icon{
  opacity:1;
  filter:drop-shadow(0 1px 1px rgba(0,35,92,.34));
}
.top-nav a.active span{
  color:#fff;
  text-shadow:0 1px 1px rgba(0,52,130,.2);
}

@media (max-width:820px){
  .mobile-product-nav a{
    transition:
      transform .13s ease,
      border-color .16s ease,
      background-color .16s ease,
      box-shadow .16s ease!important;
  }
  .mobile-product-nav a.active{
    color:#fff!important;
    border-color:#126ad9!important;
    background:linear-gradient(135deg,#176fe6,#539cff)!important;
    box-shadow:
      0 6px 15px rgba(23,104,230,.28),
      inset 0 0 0 1px rgba(255,255,255,.46)!important;
    transform:translateY(-1px);
  }
  .mobile-product-nav a.active .nav-ui-icon{
    opacity:1!important;
    filter:drop-shadow(0 1px 1px rgba(0,35,92,.38));
  }
  .mobile-product-nav a.active span{
    color:#fff!important;
    font-weight:900!important;
    text-shadow:0 1px 1px rgba(0,52,130,.22);
  }
  .mobile-product-nav a:active{
    transform:scale(.96)!important;
  }
  .mobile-product-nav a.active:active{
    transform:translateY(0) scale(.96)!important;
    box-shadow:
      0 3px 9px rgba(23,104,230,.22),
      inset 0 0 0 1px rgba(255,255,255,.48)!important;
  }
}

@media (prefers-reduced-motion:reduce){
  .mobile-product-nav a{transition:none!important}
}