/* ================= 云唐科器 · 新版首页（xinpc） 全部样式内联 ================= */
*{margin:0;padding:0;box-sizing:border-box;}
:root{
  --ink:#0a1f3c; --muted:#54708f; --blue:#1f6ce0; --cyan:#18b7d8; --deep:#0a2653;
  --grad:linear-gradient(120deg,#1f6ce0,#18b7d8);
  --glass:rgba(255,255,255,.72); --line:rgba(31,108,224,.18);
  --shadow:0 12px 44px rgba(20,66,146,.14);
}
html{scroll-behavior:smooth;scroll-snap-type:y mandatory;}
body{font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;color:var(--ink);background:#e9f1ff;overflow-x:hidden;}
a{text-decoration:none;color:inherit;transition:.25s;}
img{border:0;display:block;max-width:100%;}
ul,li{list-style:none;}

/* ---------- 全屏滚动屏 ---------- */
.xt-screen{position:relative;min-height:100vh;scroll-snap-align:start;scroll-snap-stop:always;display:flex;flex-direction:column;justify-content:center;overflow:hidden;padding:100px 6vw 40px;}
/* 科技网格背景 */
.xt-grid::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.6;
  background-image:linear-gradient(rgba(31,108,224,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(31,108,224,.07) 1px,transparent 1px);
  background-size:56px 56px;}
/* 流光圆 */
.xt-orb{position:absolute;border-radius:50%;filter:blur(70px);opacity:.4;pointer-events:none;animation:xtFloat 9s ease-in-out infinite alternate;}
.xt-orb.o1{width:420px;height:420px;background:#85c0ff;top:-120px;right:-80px;}
.xt-orb.o2{width:360px;height:360px;background:#6fdcff;bottom:-140px;left:-100px;animation-delay:-4s;}
@keyframes xtFloat{from{transform:translateY(0) scale(1);}to{transform:translateY(46px) scale(1.08);}}

/* ---------- 顶部导航（深蓝质感） ---------- */
.xt-head{position:fixed;top:0;left:0;right:0;z-index:900;background:linear-gradient(120deg,rgba(7,26,58,.94),rgba(13,47,102,.94) 55%,rgba(10,38,83,.94));backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid rgba(120,180,255,.22);box-shadow:0 6px 30px rgba(4,16,40,.45);}
.xt-headin{max-width:1680px;margin:0 auto;height:84px;display:flex;align-items:center;gap:22px;padding:0 2vw;flex-wrap:nowrap;}
.xt-logo{flex:0 0 auto;display:flex;align-items:center;}
.xt-logo img{height:42px;}
.xt-nav{display:flex;align-items:center;gap:8px;flex:1 1 auto;justify-content:center;}
.xt-nav>a{display:block;padding:12px 16px;font-size:15px;font-weight:600;color:#dce9ff;border-radius:10px;position:relative;white-space:nowrap;}
.xt-nav>a:hover,.xt-nav>a.on{color:#fff;background:rgba(255,255,255,.12);}
.xt-nav>a::after{content:"";position:absolute;left:16px;right:16px;bottom:6px;height:2px;background:linear-gradient(90deg,#6fd9ff,#2f9bff);border-radius:2px;transform:scaleX(0);transition:.3s;}
.xt-nav>a:hover::after,.xt-nav>a.on::after{transform:scaleX(1);}

/* 产品直达 Mega */
.xt-mega{position:relative;flex:0 0 auto;}
.xt-megabtn{display:flex;align-items:center;gap:8px;cursor:pointer;padding:11px 20px;font-size:15px;font-weight:700;color:#0a2653;background:linear-gradient(135deg,#9fe4ff,#5cc8ff);border-radius:999px;box-shadow:0 6px 18px rgba(47,155,255,.45);letter-spacing:2px;transition:.3s;white-space:nowrap;margin-right:6px;}
.xt-megabtn i{width:0;height:0;border-left:6px solid transparent;border-right:6px solid transparent;border-top:7px solid #0a2653;transition:.3s;}
.xt-mega:hover .xt-megabtn{box-shadow:0 8px 26px rgba(95,220,255,.6);transform:translateY(-1px);}
.xt-mega:hover .xt-megabtn i{transform:rotate(180deg);}
.xt-megapanel{position:absolute;top:calc(100% + 14px);left:-30px;transform:translateY(12px);width:min(1300px,calc(100vw - 120px));background:rgba(255,255,255,.97);backdrop-filter:blur(20px);border-radius:20px;border:1px solid var(--line);box-shadow:0 24px 70px rgba(13,47,102,.22);padding:26px 28px 18px;opacity:0;visibility:hidden;transition:.32s ease;z-index:950;}
.xt-megapanel::before{content:"";position:absolute;top:-8px;left:70px;width:16px;height:16px;background:#fff;transform:rotate(45deg);border-left:1px solid var(--line);border-top:1px solid var(--line);}
.xt-mega:hover .xt-megapanel{opacity:1;visibility:visible;transform:translateY(0);}
.xt-mgcols{display:grid;grid-template-columns:repeat(6,1fr);gap:22px;max-height:min(50vh,460px);overflow-y:auto;padding-right:8px;}
.xt-mgcols::-webkit-scrollbar{width:5px;}
.xt-mgcols::-webkit-scrollbar-thumb{background:rgba(31,108,224,.3);border-radius:4px;}
.xt-mgcol h4{font-size:15px;color:var(--deep);padding-bottom:10px;margin-bottom:10px;border-bottom:2px solid rgba(31,108,224,.15);position:relative;}
.xt-mgcol h4::after{content:"";position:absolute;left:0;bottom:-2px;width:38px;height:2px;background:var(--grad);}
.xt-mgcol h4 a:hover{color:var(--blue);}
.xt-mgcol .xt-mglinks{display:flex;flex-wrap:wrap;gap:5px 3px;}
.xt-mgcol .xt-mglinks a{font-size:12.5px;color:var(--muted);padding:2px 7px;border-radius:6px;white-space:nowrap;}
.xt-mgcol .xt-mglinks a:hover{color:#fff;background:var(--grad);}
.xt-mgpro{margin-top:14px;padding-top:12px;border-top:1px dashed var(--line);display:flex;align-items:center;gap:14px;}
.xt-mgpro b{flex:0 0 auto;font-size:15px;color:var(--deep);}
.xt-mgpro a{display:flex;align-items:center;gap:10px;padding:8px 14px 8px 8px;border-radius:12px;background:#f3f8ff;border:1px solid var(--line);transition:.3s;}
.xt-mgpro a img{width:52px;height:52px;object-fit:cover;border-radius:8px;background:#fff;}
.xt-mgpro a span{font-size:13px;color:#16345f;max-width:150px;line-height:1.4;}
.xt-mgpro a:hover{background:var(--grad);border-color:transparent;transform:translateY(-3px);box-shadow:0 8px 20px rgba(31,108,224,.3);}
.xt-mgpro a:hover span{color:#fff;}

/* 搜索 + 电话（深蓝导航上的玻璃质感） */
.xt-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.xt-search{display:flex;align-items:center;background:rgba(255,255,255,.1);border:1px solid rgba(150,195,255,.3);border-radius:999px;padding:5px 5px 5px 14px;backdrop-filter:blur(8px);white-space:nowrap;}
.xt-search .ic{width:16px;height:16px;margin-right:8px;flex:0 0 auto;position:relative;}
.xt-search .ic::before{content:"";position:absolute;inset:0;border:2px solid #9fb6df;border-radius:50%;width:11px;height:11px;}
.xt-search .ic::after{content:"";position:absolute;width:7px;height:2px;background:#9fb6df;transform:rotate(45deg);left:9px;top:12px;border-radius:2px;}
.xt-search input{width:104px;background:none;border:0;outline:none;color:#fff;font-size:14px;}
.xt-search input::placeholder{color:#9fb6df;}
.xt-search button{cursor:pointer;border:0;background:linear-gradient(135deg,#2f7bff,#1f5fe0);color:#fff;font-size:14px;font-weight:600;padding:8px 18px;border-radius:999px;transition:.3s;}
.xt-search button:hover{filter:brightness(1.15);}
.xt-phone{display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.1);border:1px solid rgba(150,195,255,.3);border-radius:999px;padding:5px 16px 5px 6px;backdrop-filter:blur(8px);white-space:nowrap;}
.xt-phone .pic{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,#2f7bff,#1f5fe0);display:flex;align-items:center;justify-content:center;flex:0 0 auto;animation:xtRing 2.6s ease-in-out infinite;}
.xt-phone .pic svg{width:17px;height:17px;fill:#fff;}
@keyframes xtRing{0%,100%{box-shadow:0 0 0 0 rgba(47,123,255,.45);}55%{box-shadow:0 0 0 9px rgba(47,123,255,0);}}
.xt-phone em{display:block;font-style:normal;font-size:12px;color:#9fb6df;line-height:1.2;}
.xt-phone b{display:block;font-size:16px;color:#fff;font-family:Arial,Helvetica,sans-serif;letter-spacing:.5px;line-height:1.2;}

/* ---------- 侧边屏导航 ---------- */
.xt-dots{position:fixed;right:22px;top:50%;transform:translateY(-50%);z-index:880;display:flex;flex-direction:column;gap:14px;}
.xt-dots li{width:12px;height:12px;border-radius:50%;background:#bcd0ea;cursor:pointer;position:relative;transition:.3s;}
.xt-dots li:hover,.xt-dots li.on{background:var(--grad);transform:scale(1.35);box-shadow:0 0 10px rgba(31,108,224,.6);}
.xt-dots li::after{content:attr(data-tip);position:absolute;right:24px;top:50%;transform:translateY(-50%);white-space:nowrap;font-size:12px;color:#fff;background:rgba(13,47,102,.85);padding:4px 10px;border-radius:6px;opacity:0;pointer-events:none;transition:.25s;}
.xt-dots li:hover::after{opacity:1;}

/* ---------- 通用标题 ---------- */
.xt-hd{position:relative;margin-bottom:26px;}
.xt-hd .tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:3px;color:var(--blue);background:rgba(31,108,224,.09);border:1px solid rgba(31,108,224,.25);padding:5px 16px;border-radius:999px;margin-bottom:14px;}
.xt-hd .tag::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan);animation:xtBlink 1.6s infinite;}
@keyframes xtBlink{0%,100%{opacity:1;}50%{opacity:.25;}}
.xt-hd h2{font-size:38px;font-weight:800;color:var(--deep);letter-spacing:1px;}
.xt-hd h2 .g{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;}
.xt-hd p{margin-top:10px;font-size:15px;color:var(--muted);max-width:900px;line-height:1.9;}
.xt-more{display:inline-flex;align-items:center;gap:8px;margin-top:18px;padding:10px 26px;border-radius:999px;font-size:14px;font-weight:600;color:#fff;background:var(--grad);box-shadow:0 8px 22px rgba(31,108,224,.32);transition:.3s;}
.xt-more:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(24,183,216,.45);}
.xt-more em{font-style:normal;transition:.3s;}
.xt-more:hover em{transform:translateX(4px);}

/* ---------- 入场动画 ---------- */
.xt-rv{opacity:0;transform:translateY(36px);transition:opacity .8s ease,transform .8s ease;}
.xt-rv.in{opacity:1;transform:none;}
.xt-d1{transition-delay:.12s;}.xt-d2{transition-delay:.24s;}.xt-d3{transition-delay:.36s;}.xt-d4{transition-delay:.48s;}

/* ---------- 第一屏 轮播 ---------- */
.xt-bans{padding:0;}
#xtBanner{position:absolute;inset:0;}
.xt-slide{position:absolute;inset:0;opacity:0;transition:opacity 1.1s ease;}
.xt-slide.on{opacity:1;}
.xt-slide img{width:100%;height:100%;object-fit:cover;}
.xt-slide::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,32,74,.18) 0%,rgba(8,32,74,.04) 45%,rgba(8,32,74,0) 100%);}
/* banner 浮层文案 */
.xt-binfo{position:absolute;left:7vw;bottom:104px;z-index:5;max-width:660px;color:#fff;}
.xt-slide .xt-binfo{opacity:0;transform:translateY(36px);transition:opacity .85s ease .3s,transform .85s ease .3s;}
.xt-slide.on .xt-binfo{opacity:1;transform:translateY(0);}
.xt-binfo::before{content:"";position:absolute;left:-40px;right:-160px;top:-46px;bottom:-34px;background:linear-gradient(90deg,rgba(6,24,54,.62) 0%,rgba(6,24,54,.34) 55%,rgba(6,24,54,0) 100%);z-index:-1;border-radius:18px;}
.xt-binfo .btag{display:inline-flex;align-items:center;gap:9px;font-size:13px;letter-spacing:4px;padding:6px 18px;border:1px solid rgba(255,255,255,.45);border-radius:999px;margin-bottom:16px;background:rgba(255,255,255,.08);backdrop-filter:blur(4px);}
.xt-binfo .btag::before{content:"";width:7px;height:7px;border-radius:50%;background:#5fd2ff;box-shadow:0 0 8px #5fd2ff;animation:xtBlink 1.6s infinite;}
.xt-binfo h2{font-size:46px;font-weight:800;line-height:1.28;letter-spacing:2px;text-shadow:0 4px 22px rgba(0,0,0,.4);}
.xt-binfo h2 span{background:linear-gradient(90deg,#5fd2ff,#aee9ff);-webkit-background-clip:text;background-clip:text;color:transparent;}
.xt-binfo p{margin-top:12px;font-size:16px;color:rgba(255,255,255,.88);letter-spacing:1px;line-height:1.8;}
.xt-binfo .bbtns{margin-top:24px;display:flex;gap:14px;}
.xt-binfo .bbtns a{display:inline-flex;align-items:center;gap:8px;padding:12px 30px;border-radius:999px;font-size:15px;font-weight:600;transition:.3s;}
.xt-binfo .bbtns .b1{background:linear-gradient(120deg,#2f7bff,#18b7d8);color:#fff;box-shadow:0 10px 26px rgba(31,108,224,.5);}
.xt-binfo .bbtns .b1:hover{transform:translateY(-3px);filter:brightness(1.12);}
.xt-binfo .bbtns .b2{border:1px solid rgba(255,255,255,.6);color:#fff;backdrop-filter:blur(4px);background:rgba(255,255,255,.08);}
.xt-binfo .bbtns .b2:hover{background:rgba(255,255,255,.2);transform:translateY(-3px);}
.xt-bdots{position:absolute;left:7vw;bottom:44px;z-index:6;display:flex;gap:12px;}
.xt-bdots .xt-bdot{width:34px;height:5px;border-radius:4px;background:rgba(255,255,255,.35);cursor:pointer;transition:.3s;}
.xt-bdots .xt-bdot.on{background:var(--grad);width:56px;box-shadow:0 0 10px rgba(47,123,255,.8);}
.xt-barr{position:absolute;top:50%;transform:translateY(-50%);z-index:6;width:46px;height:46px;border-radius:50%;border:1px solid rgba(255,255,255,.45);background:rgba(255,255,255,.12);backdrop-filter:blur(6px);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.3s;}
.xt-barr::before{content:"";width:12px;height:12px;border-left:2px solid #fff;border-bottom:2px solid #fff;}
.xt-bprev{left:26px;}.xt-bprev::before{transform:rotate(45deg);}
.xt-bnext{right:26px;}.xt-bnext::before{transform:rotate(-135deg);}
.xt-barr:hover{background:rgba(255,255,255,.3);}
.xt-down{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);z-index:6;width:26px;height:42px;border:2px solid rgba(255,255,255,.6);border-radius:16px;display:flex;justify-content:center;}
.xt-down::before{content:"";width:4px;height:9px;background:#fff;border-radius:3px;animation:xtWheel 1.6s infinite;}
@keyframes xtWheel{0%{margin-top:6px;opacity:1;}70%{margin-top:18px;opacity:0;}100%{opacity:0;}}

/* ---------- 产品屏通用 ---------- */
.xt-wrap{max-width:1500px;margin:0 auto;width:100%;}
.xt-intro{display:flex;gap:4vw;align-items:stretch;}
.xt-intro-l{flex:1.05;min-width:0;}
.xt-intro-r{flex:1;min-width:0;}
.xt-feats{display:flex;gap:14px;margin-top:22px;flex-wrap:wrap;}
.xt-feats span{font-size:14px;color:var(--deep);background:#fff;border:1px solid var(--line);padding:10px 18px;border-radius:12px;box-shadow:0 4px 14px rgba(23,79,168,.08);position:relative;overflow:hidden;}
.xt-feats span::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--grad);}
.xt-feats b{color:var(--blue);font-size:20px;margin-right:4px;font-family:Arial;}
.xt-metaph{position:relative;margin-top:0;border-radius:20px;overflow:hidden;box-shadow:var(--shadow);border:1px solid rgba(31,108,224,.18);background:radial-gradient(circle at 50% 30%,#ffffff,#eef5ff 70%,#e3efff);display:flex;align-items:center;justify-content:center;height:520px;transform-style:preserve-3d;transition:.5s;}
.xt-metaph img{width:100%;height:100%;object-fit:contain;transition:.6s;filter:drop-shadow(0 14px 26px rgba(23,79,168,.16));}
.xt-metaph:hover img{transform:scale(1.045);}
.xt-metaph::before{content:"";position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(rgba(31,108,224,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(31,108,224,.05) 1px,transparent 1px);background-size:42px 42px;}
.xt-metaph .phcap{position:absolute;left:16px;bottom:14px;z-index:3;display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:#fff;background:linear-gradient(120deg,rgba(13,47,102,.92),rgba(31,108,224,.85));padding:8px 18px;border-radius:999px;box-shadow:0 8px 20px rgba(13,47,102,.3);letter-spacing:1px;}
.xt-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:8px;}
.xt-chips a{font-size:13px;color:#2c4d80;background:rgba(255,255,255,.85);border:1px solid var(--line);padding:9px 16px;border-radius:999px;transition:.28s;position:relative;}
.xt-chips a::after{content:"›";margin-left:6px;color:var(--blue);font-weight:700;}
.xt-chips a:hover{background:var(--grad);color:#fff;border-color:transparent;transform:translateY(-3px);box-shadow:0 8px 18px rgba(31,108,224,.3);}
.xt-chips a:hover::after{color:#fff;}

/* 推荐产品卡 */
.xt-pros{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:30px;}
.xt-pro{background:#fff;border-radius:16px;border:1px solid var(--line);overflow:hidden;position:relative;transition:.35s;box-shadow:0 6px 20px rgba(23,79,168,.07);}
.xt-pro::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--grad);transform:scaleX(0);transition:.35s;}
.xt-pro:hover{transform:translateY(-8px);box-shadow:0 18px 44px rgba(23,79,168,.2);border-color:transparent;}
.xt-pro:hover::before{transform:scaleX(1);}
.xt-pro .im{height:170px;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at 50% 40%,#f0f6ff,#e2eeff);overflow:hidden;position:relative;}
.xt-pro .im img{max-height:86%;max-width:86%;object-fit:contain;transition:.45s;}
.xt-pro:hover .im img{transform:scale(1.08);}
.xt-pro .im::after{content:"荐";position:absolute;right:10px;top:10px;font-size:11px;color:#fff;background:var(--grad);padding:3px 9px;border-radius:999px;letter-spacing:2px;}
.xt-pro .tx{padding:14px 16px 14px;display:flex;flex-direction:column;}
.xt-pro .tx h3{font-size:14.5px;font-weight:700;color:#122c54;line-height:1.55;height:3.1em;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.xt-pro .tx .ft{margin-top:auto;padding-top:10px;border-top:1px dashed rgba(31,108,224,.22);display:flex;align-items:center;justify-content:space-between;}
.xt-pro .tx .ft b{font-size:12px;color:var(--blue);background:rgba(31,108,224,.09);padding:3px 10px;border-radius:6px;font-weight:600;font-family:Arial;letter-spacing:.5px;}
.xt-pro .tx .ft b:empty{display:none;}
.xt-pro .tx .ft em{font-style:normal;font-size:12px;color:#7e9cc6;display:inline-flex;align-items:center;gap:5px;letter-spacing:1px;transition:.3s;}
.xt-pro .tx .ft em::after{content:"›";font-size:14px;transition:.3s;}
.xt-pro:hover .tx .ft em{color:var(--blue);}
.xt-pro:hover .tx .ft em::after{transform:translateX(4px);}

/* 图文模式（土壤水质） */
.xt-duo{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.xt-duo .cell{display:flex;gap:0;background:#fff;border-radius:18px;border:1px solid var(--line);overflow:hidden;box-shadow:var(--shadow);transition:.4s;}
.xt-duo .cell:hover{transform:translateY(-6px);box-shadow:0 18px 44px rgba(23,79,168,.18);}
.xt-duo .cell .pic{flex:0 0 34%;position:relative;overflow:hidden;}
.xt-duo .cell .pic img{width:100%;height:100%;object-fit:cover;transition:.6s;}
.xt-duo .cell:hover .pic img{transform:scale(1.08);}
.xt-duo .cell .pic::after{content:"";position:absolute;inset:0;background:linear-gradient(200deg,transparent,rgba(13,47,102,.35));}
.xt-duo .cell .info{flex:1;padding:18px 20px;min-width:0;}
.xt-duo .cell .info h3{font-size:19px;color:var(--deep);}
.xt-duo .cell .info h3 a:hover{color:var(--blue);}
.xt-duo .cell .info p{font-size:13px;color:var(--muted);line-height:1.8;margin-top:8px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.xt-duo .cell .info .xt-chips{margin-top:12px;}
.xt-duo .cell .info .xt-chips a{padding:5px 12px;font-size:12px;}

/* ---------- 案例屏 ---------- */
.xt-cases{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.xt-case{position:relative;border-radius:16px;overflow:hidden;height:300px;box-shadow:var(--shadow);}
.xt-case img{width:100%;height:100%;object-fit:cover;transition:.6s;}
.xt-case:hover img{transform:scale(1.09);}
.xt-case::after{content:"";position:absolute;inset:0;background:linear-gradient(200deg,rgba(13,47,102,.05) 30%,rgba(13,47,102,.85) 100%);transition:.4s;}
.xt-case:hover::after{background:linear-gradient(200deg,rgba(31,108,224,.25) 20%,rgba(13,47,102,.9) 100%);}
.xt-case .ct{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:18px;color:#fff;}
.xt-case .ct h3{font-size:16px;font-weight:700;line-height:1.5;}
.xt-case .ct p{font-size:12px;color:rgba(255,255,255,.75);margin-top:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.xt-case .ct em{display:inline-flex;align-items:center;gap:6px;font-style:normal;font-size:12px;margin-top:12px;color:#8fd6ff;letter-spacing:2px;}
.xt-case .ct em::after{content:"→";transition:.3s;}
.xt-case:hover .ct em::after{transform:translateX(5px);}

/* ---------- 解决方案屏 ---------- */
.xt-sols{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.xt-sol{position:relative;border-radius:16px;overflow:hidden;height:280px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow);transition:.35s;display:flex;flex-direction:column;}
.xt-sol:hover{transform:translateY(-8px);}
.xt-sol .im{flex:1;min-height:0;overflow:hidden;position:relative;}
.xt-sol .im img{width:100%;height:100%;object-fit:cover;transition:.6s;}
.xt-sol:hover .im img{transform:scale(1.08);}
.xt-sol .tx{padding:14px 16px 13px;flex:0 0 auto;background:#fff;}
.xt-sol .tx h3{font-size:15px;font-weight:700;color:#122c54;line-height:1.55;height:3.1em;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.xt-sol .tx .mt{margin-top:9px;padding-top:9px;border-top:1px dashed rgba(31,108,224,.22);display:flex;align-items:center;justify-content:space-between;}
.xt-sol .tx .mt em{font-style:normal;font-size:12px;color:#7e9cc6;font-family:Arial;letter-spacing:.5px;}
.xt-sol .tx .mt i{font-style:normal;font-size:12px;color:var(--blue);font-weight:600;letter-spacing:1px;display:inline-flex;align-items:center;gap:5px;}
.xt-sol .tx .mt i::after{content:"→";transition:.3s;}
.xt-sol:hover .tx .mt i::after{transform:translateX(5px);}
.xt-sol:hover .tx .mt i{color:#0f56c4;}
.xt-sol::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:var(--grad);transform:scaleX(0);transition:.35s;}
.xt-sol:hover::after{transform:scaleX(1);}

/* ---------- 新闻资讯屏 ---------- */
.xt-news{background:linear-gradient(180deg,#eaf3ff,#d8e9ff);}
.xt-newsgrid{display:grid;grid-template-columns:1.12fr 1fr;gap:20px;margin-top:24px;}
.xt-nfeat{display:flex;flex-direction:column;background:#fff;border-radius:16px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);transition:.35s;}
.xt-nfeat:hover{transform:translateY(-6px);box-shadow:0 18px 46px rgba(20,66,146,.2);}
.xt-nfeat .im{flex:1;min-height:0;overflow:hidden;position:relative;}
.xt-nfeat .im img{width:100%;height:100%;object-fit:cover;transition:.6s;}
.xt-nfeat:hover .im img{transform:scale(1.06);}
.xt-nfeat .im::after{content:"";position:absolute;left:0;right:0;bottom:0;height:46%;background:linear-gradient(200deg,transparent,rgba(10,38,83,.55));}
.xt-nfeat .dtag{position:absolute;left:0;top:0;z-index:2;background:var(--grad);color:#fff;font-size:12px;font-family:Arial;letter-spacing:1px;padding:6px 16px;border-radius:0 0 14px 0;box-shadow:0 6px 14px rgba(31,108,224,.35);}
.xt-nfeat .tx{padding:15px 20px 15px;flex:0 0 auto;background:#fff;}
.xt-nfeat .tx h3{font-size:16.5px;font-weight:700;color:#122c54;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.xt-nfeat .tx p{margin-top:7px;font-size:13px;color:var(--muted);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.xt-nfeat .tx .lk{display:inline-flex;align-items:center;gap:6px;margin-top:9px;font-size:12.5px;color:var(--blue);font-weight:600;letter-spacing:1px;}
.xt-nfeat .tx .lk::after{content:"→";transition:.3s;}
.xt-nfeat:hover .tx .lk::after{transform:translateX(5px);}
.xt-nlist{display:flex;flex-direction:column;gap:13px;}
.xt-nitem{flex:1;display:flex;gap:13px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:11px 13px 11px 11px;box-shadow:0 6px 18px rgba(23,79,168,.08);transition:.3s;overflow:hidden;min-height:0;}
.xt-nitem:hover{transform:translateX(7px);border-color:rgba(31,108,224,.4);box-shadow:0 10px 26px rgba(31,108,224,.18);}
.xt-nitem .im{flex:0 0 138px;border-radius:10px;overflow:hidden;}
.xt-nitem .im img{width:100%;height:100%;object-fit:cover;transition:.5s;}
.xt-nitem:hover .im img{transform:scale(1.07);}
.xt-nitem .tx{flex:1;min-width:0;display:flex;flex-direction:column;padding:2px 0;}
.xt-nitem .tx h3{font-size:14.5px;font-weight:700;color:#122c54;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.xt-nitem .tx .mt{margin-top:auto;display:flex;justify-content:space-between;align-items:center;padding-top:7px;}
.xt-nitem .tx .mt em{font-style:normal;font-size:12px;color:#7e9cc6;font-family:Arial;}
.xt-nitem .tx .mt i{font-style:normal;font-size:12px;color:var(--blue);font-weight:600;}

/* ---------- 深色案例屏（高端对比） ---------- */
.xt-dark{color:#fff;background:linear-gradient(160deg,#0a2653 0%,#123a7c 55%,#0d2f66 100%);}
.xt-dark.xt-grid::before{background-image:linear-gradient(rgba(140,190,255,.09) 1px,transparent 1px),linear-gradient(90deg,rgba(140,190,255,.09) 1px,transparent 1px);}
.xt-dark .xt-orb.o1{background:#2f7bff;opacity:.45;}
.xt-dark .xt-orb.o2{background:#18b7d8;opacity:.35;}
.xt-dark .xt-hd h2{color:#fff;}
.xt-dark .xt-hd h2 .g{background:linear-gradient(120deg,#6fd9ff,#a9ecff);-webkit-background-clip:text;background-clip:text;color:transparent;}
.xt-dark .xt-hd p{color:rgba(224,238,255,.75);}
.xt-dark .xt-hd .tag{color:#a8dcff;background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.3);}
.xt-dark .xt-more{box-shadow:0 8px 22px rgba(4,16,40,.45);}

/* ---------- 关于云唐屏（蓝底质感版） ---------- */
.xt-abtop{display:grid;grid-template-columns:1.1fr .9fr;gap:4vw;align-items:center;}
.xt-abtxt p{font-size:14px;color:#c9dcf5;line-height:1.95;text-align:justify;}
.xt-abstats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px;}
.xt-abstats .st{background:rgba(255,255,255,.09);border:1px solid rgba(150,195,255,.28);border-radius:14px;padding:14px 8px;text-align:center;backdrop-filter:blur(8px);position:relative;overflow:hidden;transition:.3s;}
.xt-abstats .st:hover{transform:translateY(-4px);background:rgba(255,255,255,.14);border-color:rgba(150,195,255,.5);}
.xt-abstats .st::after{content:"";position:absolute;left:20%;right:20%;bottom:0;height:3px;border-radius:3px;background:linear-gradient(90deg,#6fd9ff,#2f9bff);}
.xt-abstats .st b{font-size:26px;font-family:Arial;color:#7fdcff;}
.xt-abstats .st b i{font-style:normal;font-size:14px;color:#a5dbff;margin-left:2px;}
.xt-abstats .st span{display:block;margin-top:6px;font-size:13px;color:#c9dcf5;}
.xt-abimg{position:relative;}
.xt-abimg .ph{border-radius:18px;overflow:hidden;box-shadow:0 18px 50px rgba(4,16,40,.55);position:relative;border:1px solid rgba(150,195,255,.35);}
.xt-abimg .ph img{width:100%;height:270px;object-fit:cover;transition:.6s;}
.xt-abimg .ph:hover img{transform:scale(1.05);}
.xt-abimg .ph::after{content:"";position:absolute;inset:0;background:linear-gradient(140deg,rgba(31,108,224,.25),transparent 55%);}
.xt-abimg .cap{position:absolute;right:-10px;bottom:-18px;background:rgba(10,38,83,.92);border:1px solid rgba(150,195,255,.35);border-radius:12px;padding:10px 20px;font-size:13px;color:#fff;box-shadow:0 10px 30px rgba(4,16,40,.5);letter-spacing:2px;backdrop-filter:blur(8px);}
.xt-abimg .cap b{color:#7fdcff;}
.xt-line{margin-top:34px;position:relative;}
.xt-line::before{content:"";position:absolute;top:11px;left:5%;right:5%;height:2px;background:linear-gradient(90deg,rgba(111,217,255,.2),rgba(111,217,255,.85),rgba(111,217,255,.2));border-radius:2px;}
.xt-line ul{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;}
.xt-line li{text-align:center;position:relative;padding-top:36px;}
.xt-line li::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);width:18px;height:18px;border-radius:50%;background:#0a2653;border:4px solid #4fc3f7;box-shadow:0 0 0 4px rgba(79,195,247,.18),0 0 14px rgba(79,195,247,.75);z-index:2;transition:.3s;}
.xt-line li:hover::before{background:#4fc3f7;transform:translateX(-50%) scale(1.18);}
.xt-line li b{display:block;font-size:16px;color:#fff;letter-spacing:1px;}
.xt-line li span{display:block;margin-top:7px;font-size:12.5px;color:#b7cbe6;line-height:1.75;}
.xt-honor{margin-top:30px;display:grid;grid-template-columns:auto 1fr;gap:24px;align-items:center;background:rgba(255,255,255,.08);border:1px solid rgba(150,195,255,.28);border-radius:18px;padding:18px 24px;backdrop-filter:blur(10px);box-shadow:0 14px 44px rgba(4,16,40,.45);}
.xt-honor .himg{width:380px;border-radius:12px;overflow:hidden;border:1px solid rgba(150,195,255,.3);}
.xt-honor .himg img{height:150px;width:100%;object-fit:cover;transition:.6s;}
.xt-honor .himg:hover img{transform:scale(1.06);}
.xt-honor .htx h3{font-size:19px;color:#fff;}
.xt-honor .htx h3::before{content:"🏅";margin-right:8px;}
.xt-honor .htx p{font-size:13px;color:#c9dcf5;line-height:1.85;margin-top:8px;}
.xt-honor .hbadges{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px;}
.xt-honor .hbadges span{font-size:12.5px;color:#9fdcff;background:rgba(79,195,247,.12);border:1px solid rgba(79,195,247,.4);padding:6px 14px;border-radius:999px;}

/* ---------- 联系我们屏 ---------- */
.xt-contact{background:linear-gradient(150deg,#e4efff,#d6e8ff);}
.xt-ctcards{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:36px;}
.xt-ctc{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px 24px;box-shadow:var(--shadow);position:relative;overflow:hidden;transition:.35s;}
.xt-ctc::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad);transform:scaleX(0);transition:.35s;}
.xt-ctc:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(23,79,168,.18);}
.xt-ctc:hover::before{transform:scaleX(1);}
.xt-ctc .ic{width:52px;height:52px;border-radius:14px;background:var(--grad);display:flex;align-items:center;justify-content:center;margin-bottom:16px;box-shadow:0 8px 18px rgba(31,108,224,.35);}
.xt-ctc .ic svg{width:24px;height:24px;fill:#fff;}
.xt-ctc h3{font-size:15px;color:var(--muted);letter-spacing:2px;}
.xt-ctc p{margin-top:8px;font-size:17px;font-weight:700;color:var(--deep);line-height:1.6;}
.xt-ctc.hot{background:linear-gradient(135deg,#1f6ce0,#18b7d8);border-color:transparent;}
.xt-ctc.hot::before{background:#fff;height:4px;}
.xt-ctc.hot h3{color:rgba(255,255,255,.85);}
.xt-ctc.hot p{color:#fff;font-size:19px;}
.xt-ctc.hot .ic{background:rgba(255,255,255,.22);box-shadow:0 8px 18px rgba(4,16,40,.3);}
.xt-ctqr{display:flex;gap:22px;align-items:center;background:rgba(255,255,255,.85);border:1px solid var(--line);border-radius:18px;padding:24px 32px;box-shadow:var(--shadow);}
.xt-ctqr .qr{display:flex;align-items:center;gap:14px;}
.xt-ctqr .qr img{width:136px;height:136px;border-radius:12px;border:2px solid rgba(31,108,224,.35);box-shadow:0 10px 26px rgba(23,79,168,.18);}
.xt-ctqr .qr span{font-size:13.5px;color:var(--deep);font-weight:600;text-align:center;}
.xt-ctqr .qr div{display:flex;flex-direction:column;align-items:center;gap:8px;}
.xt-ctqr .cta{margin-left:auto;display:flex;align-items:center;gap:16px;}
.xt-ctqr .cta a.big{padding:17px 44px;border-radius:999px;background:var(--grad);color:#fff;font-size:18px;font-weight:700;letter-spacing:2px;box-shadow:0 12px 30px rgba(31,108,224,.45);transition:.3s;}
.xt-ctqr .cta a.big:hover{transform:translateY(-3px);box-shadow:0 16px 38px rgba(24,183,216,.55);}
.xt-ctqr .cta .tip{font-size:13px;color:var(--muted);max-width:210px;line-height:1.7;}

/* 页脚底条 */
.xt-foot{margin-top:40px;border-top:1px solid var(--line);padding-top:20px;}
.xt-flink{font-size:12.5px;color:#7a90b3;line-height:2;}
.xt-flink b{color:var(--deep);margin-right:6px;}
.xt-flink a{margin-right:14px;}
.xt-flink a:hover{color:var(--blue);}
.xt-beian{margin-top:12px;padding-bottom:6px;font-size:12.5px;color:#8497b5;text-align:center;line-height:2;}
.xt-beian a{margin:0 8px;}
.xt-beian a:hover{color:var(--blue);}
.xt-beian img{display:inline-block;width:15px;height:15px;vertical-align:-3px;margin-right:3px;}

/* ---------- 悬浮侧栏 ---------- */
.xt-side{position:fixed;right:16px;bottom:120px;z-index:870;display:flex;flex-direction:column;gap:10px;}
.xt-side a{width:54px;height:54px;border-radius:14px;background:#fff;border:1px solid var(--line);box-shadow:0 8px 22px rgba(13,47,102,.14);display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:10px;color:var(--deep);gap:2px;position:relative;transition:.3s;}
.xt-side a:hover{background:var(--grad);color:#fff;transform:translateY(-4px);}
.xt-side a svg{width:20px;height:20px;fill:var(--blue);transition:.3s;}
.xt-side a:hover svg{fill:#fff;}
.xt-side .wx:hover::after{content:"";position:absolute;right:62px;top:50%;transform:translateY(-50%);width:110px;height:110px;border-radius:10px;background:#fff url(/skin/xinpc/images/wx-qr.jpg) center/cover no-repeat;border:4px solid #fff;box-shadow:0 10px 30px rgba(0,0,0,.25);}

@media (max-height:1000px){
  .xt-screen{padding:92px 6vw 28px;}
  .xt-abimg .ph img{height:230px;}
  .xt-honor .himg{width:330px;}
  .xt-honor .himg img{height:130px;}
  .xt-pro .im{height:140px;}
  .xt-case{height:250px;}
  .xt-sol{height:250px;}
  .xt-ctc{padding:18px 20px;}
  .xt-ctqr{padding:16px 24px;}
  .xt-ctqr .qr img{width:106px;height:106px;}
  .xt-ctqr .cta a.big{padding:14px 34px;font-size:16px;}
  .xt-pros{margin-top:20px;}
  .xt-metaph{height:420px;}
  .xt-newsgrid{margin-top:18px;}
  .xt-nfeat .tx p{-webkit-line-clamp:1;}
}
@media (max-height:840px){
  #s3 .xt-chips,#s5 .xt-chips{max-height:180px;overflow-y:auto;padding-right:6px;}
  .xt-pro .im{height:118px;}
  .xt-hd h2{font-size:28px;}
  .xt-hd p{font-size:13.5px;margin-top:6px;}
}
/* ---------- 响应式 ---------- */
@media (max-width:1440px){
  .xt-hd h2{font-size:32px;}
  .xt-binfo h2{font-size:42px;}
  .xt-pro .im{height:150px;}
  .xt-case{height:260px;}
  .xt-honor .himg{width:340px;}
}
@media (max-width:1200px){
  .xt-mgcols{grid-template-columns:repeat(3,1fr);}
  .xt-search input{width:96px;}
  .xt-nav>a{padding:12px 10px;font-size:15px;}
}
@media (max-width:992px){
  html{scroll-snap-type:none;}
  .xt-screen{min-height:auto;padding:110px 5vw 50px;}
  .xt-nav{display:none;}
  .xt-intro{flex-direction:column;}
  .xt-pros,.xt-cases,.xt-sols,.xt-ctcards{grid-template-columns:repeat(2,1fr);}
  .xt-duo{grid-template-columns:1fr;}
  .xt-abtop{grid-template-columns:1fr;}
  .xt-line ul{grid-template-columns:repeat(2,1fr);gap:22px;}
  .xt-line::before{display:none;}
  .xt-newsgrid{grid-template-columns:1fr;}
  .xt-nfeat .im{height:210px;flex:none;}
  .xt-honor{grid-template-columns:1fr;}
  .xt-honor .himg{width:100%;}
  .xt-megapanel{display:none;}
  .xt-search input{width:80px;}
  .xt-phone em{display:none;}
  .xt-binfo h2{font-size:30px;}
}
@media (max-width:640px){
  .xt-pros,.xt-cases,.xt-sols,.xt-ctcards{grid-template-columns:1fr;}
  .xt-search{display:none;}
  .xt-ctqr{flex-wrap:wrap;}
  .xt-ctqr .cta{margin-left:0;}
}