:root{--ink:#13233d;--muted:#657692;--line:#dfe8f5;--bg:#f7f9fd;--white:#fff;--blue:#176fe8;--purple:#6f43e8;--navy:#172843;--mint:#0d9a77;--gold:#d59a34;--radius:24px;--shadow:0 16px 45px rgba(18,43,80,.09);--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7;overflow-x:hidden}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.container{width:min(var(--max),calc(100% - 40px));margin:0 auto}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(16px);border-bottom:1px solid rgba(208,222,240,.9)}.nav{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:22px}.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:22px;letter-spacing:-.04em;white-space:nowrap}.brand-mark{display:grid;place-items:center;width:33px;height:33px;border-radius:11px;background:linear-gradient(135deg,#1d78f3,#7b4fea);color:#fff;font-size:17px;box-shadow:0 8px 20px rgba(50,100,240,.24)}.brand small{font-size:12px;color:#6b7891;letter-spacing:.04em;font-weight:700}.nav-links{display:flex;align-items:center;justify-content:center;gap:6px;flex:1}.nav-links a{font-size:14px;font-weight:700;padding:10px 11px;border-radius:12px;color:#41506a;white-space:nowrap}.nav-links a:hover,.nav-links a.active{color:#1e64d8;background:#edf5ff}.nav-side{display:flex;align-items:center;gap:14px}.lang{display:flex;align-items:center;gap:3px;border:1px solid #dce5f2;background:#fff;border-radius:999px;padding:3px}.lang a{padding:5px 8px;border-radius:999px;font-size:12px;font-weight:800;color:#687a95}.lang a.current{background:#edf1ff;color:#5a36d8}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:14px;padding:12px 17px;background:linear-gradient(135deg,#1877ec,#6b43e8);color:#fff;font-size:14px;font-weight:800;border:0;box-shadow:0 10px 22px rgba(63,92,224,.22)}.btn.secondary{background:#fff;color:#203451;border:1px solid #d9e3f2;box-shadow:none}.menu-button{display:none;border:1px solid #d7e1ef;background:#fff;color:#1e334f;border-radius:12px;padding:9px 12px;font-weight:800}
.hero{padding:74px 0 62px}.hero-grid{display:grid;grid-template-columns:minmax(0,.93fr) minmax(460px,1.07fr);align-items:center;gap:54px}.eyebrow{display:inline-flex;align-items:center;gap:8px;border:1px solid #d9e7ff;background:#fff;padding:7px 11px;border-radius:999px;font-size:12px;font-weight:800;color:#4264a3;letter-spacing:.02em}.eyebrow .dot{width:8px;height:8px;border-radius:50%;background:var(--purple)}.h1{font-size:clamp(42px,5.25vw,68px);line-height:1.07;letter-spacing:-.065em;margin:18px 0 18px;max-width:690px}.lead{font-size:19px;line-height:1.85;color:#556984;max-width:630px;margin:0}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:27px}.hero-points{display:flex;flex-wrap:wrap;gap:16px 21px;margin-top:30px;color:#5e7390;font-size:13px;font-weight:700}.hero-points span{display:flex;align-items:center;gap:7px}.hero-points i{display:block;width:8px;height:8px;border-radius:50%;background:#6a4aea}.hero-visual{border-radius:34px;padding:9px;background:linear-gradient(135deg,#dfeaff,#f0ebff);box-shadow:var(--shadow)}.hero-visual img{width:100%;border-radius:27px;background:#f6f9ff}
.section{padding:72px 0}.section.tight{padding:48px 0}.section-head{max-width:760px;margin-bottom:28px}.section-kicker{font-size:13px;font-weight:800;color:#5d45d9;text-transform:uppercase;letter-spacing:.09em}.h2{font-size:clamp(30px,3.5vw,45px);line-height:1.18;letter-spacing:-.048em;margin:9px 0 12px}.intro{font-size:17px;color:var(--muted);margin:0;max-width:730px}.grid{display:grid;gap:18px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 7px 22px rgba(15,43,79,.045)}.card h3{font-size:20px;line-height:1.3;letter-spacing:-.026em;margin:0 0 9px}.card p{font-size:15px;color:var(--muted);margin:0}.card .num{font-size:13px;font-weight:800;color:#6546dc;display:block;margin-bottom:15px}.card .arrow{display:inline-flex;margin-top:16px;font-size:13px;font-weight:800;color:#5d45d9}.evolution-card{position:relative;min-height:250px;overflow:hidden}.evolution-card:after{content:"";position:absolute;right:-38px;bottom:-54px;width:150px;height:150px;background:radial-gradient(circle,#dce9ff,transparent 66%);border-radius:50%}.evolution-card:nth-child(2):after{background:radial-gradient(circle,#eadfff,transparent 66%)}.evolution-card:nth-child(3):after{background:radial-gradient(circle,#d9f6ed,transparent 66%)}.evolution-card:nth-child(4):after{background:radial-gradient(circle,#fff1d8,transparent 66%)}.evolution-card .icon{width:46px;height:46px;border-radius:15px;display:grid;place-items:center;background:#edf5ff;color:#1c74e5;font-size:20px;font-weight:900;margin-bottom:19px}.evolution-card:nth-child(2) .icon{background:#f0ecff;color:#6c45e5}.evolution-card:nth-child(3) .icon{background:#e6faf4;color:#0f9070}.evolution-card:nth-child(4) .icon{background:#fff4df;color:#bd7d18}.band{background:linear-gradient(120deg,#172844,#274a81 58%,#6b48df);color:#fff;border-radius:30px;padding:38px;display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:34px;overflow:hidden;position:relative}.band:after{content:"";position:absolute;width:360px;height:360px;border-radius:50%;right:-120px;top:-175px;background:radial-gradient(circle,rgba(168,182,255,.42),transparent 66%)}.band h2{color:#fff;margin:0 0 12px}.band p{margin:0;color:#dce8ff;font-size:16px;max-width:620px}.band .btn{position:relative;z-index:1;justify-self:start;background:#fff;color:#264260;box-shadow:none}.split{display:grid;grid-template-columns:minmax(0,.92fr) minmax(420px,1.08fr);gap:46px;align-items:center}.split.reverse{grid-template-columns:minmax(420px,1.08fr) minmax(0,.92fr)}.split.reverse .copy{order:2}.split.reverse .media{order:1}.media{border-radius:28px;background:#fff;padding:8px;border:1px solid var(--line);box-shadow:var(--shadow)}.media img{border-radius:21px;width:100%}.feature-list{display:grid;gap:13px;margin-top:22px}.feature-list div{padding:14px 15px;background:#fff;border:1px solid var(--line);border-radius:17px;font-size:15px;color:#526681}.feature-list b{color:#1d3152}.timeline{position:relative;display:grid;gap:14px}.timeline:before{content:"";position:absolute;left:17px;top:24px;bottom:24px;width:2px;background:#d6e2f8}.timeline-item{display:grid;grid-template-columns:36px 1fr;gap:14px;position:relative}.timeline-item .t-dot{height:36px;width:36px;border-radius:50%;display:grid;place-items:center;background:#edf4ff;color:#236fe1;font-size:13px;font-weight:900;border:1px solid #c9dcfb}.timeline-item h3{margin:2px 0 5px;font-size:18px}.timeline-item p{margin:0;color:var(--muted);font-size:15px}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:22px;background:#fff}.table{width:100%;border-collapse:collapse;min-width:680px}.table th,.table td{text-align:left;padding:17px 18px;border-bottom:1px solid #e8eff8;font-size:14px;vertical-align:top}.table th{background:#f7faff;color:#365171;font-weight:800}.table tr:last-child td{border-bottom:0}.pill{display:inline-flex;padding:5px 9px;background:#edf5ff;color:#236ee1;border-radius:999px;font-size:12px;font-weight:800}.quote{background:#f0f5ff;border:1px solid #dce8fb;padding:26px;border-radius:25px;color:#294567;font-size:18px;line-height:1.75}.quote strong{color:#1f3473}.faq{display:grid;gap:10px}.faq details{background:#fff;border:1px solid var(--line);border-radius:17px;padding:0 17px}.faq summary{cursor:pointer;font-size:16px;font-weight:800;padding:16px 0;color:#223855}.faq details p{margin:0;padding:0 0 16px;color:var(--muted);font-size:15px}.contact-grid{display:grid;grid-template-columns:.88fr 1.12fr;gap:22px}.contact-card{background:#fff;border:1px solid var(--line);border-radius:25px;padding:28px}.contact-card h2{font-size:27px;margin:0 0 12px}.contact-line{display:flex;gap:12px;align-items:flex-start;padding:16px 0;border-bottom:1px solid #e6edf7}.contact-line:last-child{border-bottom:0}.contact-line .badge{width:36px;height:36px;display:grid;place-items:center;border-radius:12px;background:#edf5ff;color:#1f70df;font-weight:900}.contact-line small{display:block;color:#71839a}.contact-line b{display:block;font-size:16px}.form{display:grid;gap:13px}.form label{display:grid;gap:6px;font-size:14px;font-weight:800;color:#334d6b}.form input,.form textarea,.form select{width:100%;border:1px solid #d9e4f1;border-radius:13px;padding:12px 13px;background:#fbfdff;font:inherit;color:#243b59}.form textarea{min-height:120px;resize:vertical}.form-note{font-size:13px;color:#74869d;margin:0}.contact-result{margin-top:14px;padding:13px 14px;background:#eff7ff;border-radius:14px;color:#345577;font-size:14px;display:none}.contact-result.show{display:block}.callout{padding:23px 24px;border:1px solid #dce7f8;border-radius:22px;background:linear-gradient(140deg,#fff,#f3f7ff)}.callout h3{margin:0 0 7px;font-size:20px}.callout p{margin:0;color:var(--muted);font-size:15px}.footer{background:#12213a;color:#d6e1f2;margin-top:74px}.footer-grid{display:grid;grid-template-columns:1.45fr repeat(3,1fr);gap:32px;padding:52px 0 34px}.footer h4{color:#fff;margin:0 0 13px;font-size:15px}.footer a,.footer p{display:block;margin:7px 0;color:#afbed2;font-size:14px}.footer .footer-brand{font-size:23px;font-weight:800;color:#fff;margin-bottom:10px}.footer-bottom{padding:17px 0;border-top:1px solid rgba(255,255,255,.13);font-size:13px;color:#9eb0c8;display:flex;gap:12px;justify-content:space-between;flex-wrap:wrap}.support{position:fixed;bottom:18px;right:18px;z-index:42}.support a{display:flex;align-items:center;gap:9px;border-radius:999px;padding:10px 14px 10px 9px;background:#fff;border:1px solid #dce7f5;box-shadow:0 10px 26px rgba(22,48,88,.16);font-size:12px;font-weight:800;color:#243d5d}.support i{width:29px;height:29px;border-radius:50%;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,#1c78eb,#7350e9);font-style:normal}.breadcrumbs{font-size:13px;color:#72839a;padding:24px 0 0}.breadcrumbs a{color:#5572a4}.page-hero{padding:42px 0 45px}.page-hero .h1{font-size:clamp(38px,4.6vw,60px);max-width:780px}.seo-note{padding:18px 20px;border-radius:18px;background:#fff;border:1px dashed #c9dafa;color:#58718d;font-size:14px}.hidden{display:none!important}
@media(max-width:1050px){.nav-links{gap:0}.nav-links a{padding:9px 8px;font-size:13px}.hero-grid,.split,.split.reverse{grid-template-columns:1fr;gap:30px}.split.reverse .copy,.split.reverse .media{order:initial}.grid.four{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.three{grid-template-columns:repeat(2,minmax(0,1fr))}.band{grid-template-columns:1fr}.contact-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}}
@media(max-width:820px){.nav{min-height:68px;flex-wrap:wrap}.menu-button{display:inline-flex}.nav-links{display:none;order:5;width:100%;flex-direction:column;align-items:stretch;padding:12px 0 2px;border-top:1px solid #e9eff7}.nav-links a{font-size:15px;padding:11px 12px}.nav-side{margin-left:auto}.nav-side .btn{display:none}.site-header.menu-open .nav-links{display:flex}.site-header.menu-open .nav{padding-bottom:12px}.hero{padding:44px 0 40px}.hero-grid{gap:25px}.h1{font-size:clamp(38px,10vw,57px)}.lead{font-size:17px}.section{padding:53px 0}.grid.three,.grid.two{grid-template-columns:1fr}.band{padding:29px}.footer-grid{grid-template-columns:1fr 1fr}.support{right:12px;bottom:12px}.support a{padding:8px 12px 8px 8px}.footer-bottom{padding-bottom:82px}}
@media(max-width:500px){.container{width:min(var(--max),calc(100% - 28px))}.brand{font-size:20px}.brand small{display:none}.nav-side{gap:8px}.lang a{padding:5px 6px}.hero{padding-top:35px}.hero-points{gap:10px 14px}.grid.four{grid-template-columns:1fr}.card{padding:20px}.footer-grid{grid-template-columns:1fr}.hero-visual{padding:6px;border-radius:23px}.hero-visual img{border-radius:18px}.page-hero{padding:32px 0}.table th,.table td{padding:13px 14px}.support a span{display:none}.support a{padding:8px}.support i{width:32px;height:32px}}

/* DXTECH × KingAI integration layer */
.kingai-product-strip{position:sticky;top:76px;z-index:32;background:rgba(248,250,255,.94);backdrop-filter:blur(16px);border-bottom:1px solid #dfe8f5}
.kingai-product-strip .inner{width:min(1180px,calc(100% - 40px));margin:0 auto;min-height:48px;display:flex;align-items:center;gap:15px;overflow:auto;white-space:nowrap}
.kingai-product-strip strong{font-size:12px;letter-spacing:.04em;color:#30496a;flex:0 0 auto}.kingai-product-strip strong em{font-style:normal;color:#6a47df}
.kingai-product-strip a{font-size:12px;font-weight:800;color:#657691;padding:7px 9px;border-radius:10px;flex:0 0 auto}.kingai-product-strip a:hover,.kingai-product-strip a.active{background:#eaf2ff;color:#2468d6}
.kingai-global-header .brand em{font-style:normal;font-size:12px;letter-spacing:.01em;color:#6a47df;margin-left:4px;font-weight:800}
.kingai-global-header .nav-wrap{max-width:1420px}
.kingai-page .site-footer{margin-top:0}
.kingai-page .site-footer a{color:#afbed2}
.kingai-page .site-footer a:hover{color:#fff}
.kingai-page .site-footer .footer-grid{max-width:1420px}
.kingai-page .site-footer .footer-bottom{max-width:1420px}
.kingai-page .support-widget-root{z-index:90}
@media(max-width:900px){.kingai-product-strip{top:68px}.kingai-product-strip .inner{width:calc(100% - 28px);gap:8px}.kingai-product-strip strong{display:none}.kingai-global-header .brand em{display:none}}