:root{--blue:#1263df;--blue-dark:#164b94;--ink:#183551;--muted:#67798e;--orange:#f98642;--line:#dfe7ef;--pale:#f2f6fb;--white:#fff;--radius:18px;--shadow:0 16px 46px #284c7b0b;font-family:Arial,"Helvetica Neue",sans-serif;color:var(--ink);background:white;font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;font-size:15px;line-height:1.65}button,input,select,textarea{font:inherit}a{color:inherit;text-decoration:none}a,button,input,select,textarea{touch-action:manipulation}button{cursor:pointer}button:disabled{opacity:.5;cursor:wait}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--orange);outline-offset:5px}input:focus,select:focus,textarea:focus{outline:2px solid 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#d8e4f0;margin-top:35px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;font-size:10px;color:#758aa5}.floating-contact{position:fixed;right:20px;bottom:22px;z-index:25;display:grid;gap:10px}.floating-contact>a{width:50px;height:50px;display:flex;align-items:center;justify-content:center;border-radius:50%;box-shadow:0 5px 20px #17427433;border:3px solid #fff;font-size:11px;font-weight:700}.float-zalo{background:var(--blue);color:#fff}.float-phone{background:var(--orange);color:#fff}.toast{position:fixed;left:50%;bottom:25px;transform:translate(-50%,20px);z-index:100;background:#163d68;color:#fff;padding:12px 20px;border-radius:10px;font-size:13px;opacity:0;pointer-events:none;transition:.2s;width:max-content;max-width:calc(100vw - 40px);box-shadow:0 8px 30px #12335e33}.toast.visible{opacity:1;transform:translate(-50%,0)}dialog{border:1px solid var(--line);border-radius:20px;max-height:90dvh;overflow-y:auto;padding:28px;color:var(--ink);box-shadow:0 25px 100px #18355144;width:min(790px,calc(100% - 30px))}dialog::backdrop{background:#18355180;backdrop-filter:blur(3px)}.dialog-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:20px}.dialog-heading h2{font-size:25px;margin-bottom:0}.dialog-heading .eyebrow{font-size:10px}.quote-dialog>label{font-size:12px;font-weight:700}.quote-dialog>textarea{width:100%;resize:vertical;border:1px solid var(--line);border-radius:10px;padding:14px;font-size:12px;color:var(--ink);line-height:1.8;margin-top:8px}.dialog-hint{font-size:11px;line-height:1.8;margin:14px 0}.dialog-actions{display:flex;gap:9px;flex-wrap:wrap}.dialog-actions .button{min-height:43px;font-size:12px;padding:10px 14px}.contact-stage{border-top:1px solid var(--line);margin-top:22px;padding-top:20px}.contact-stage strong{font-size:14px}.contact-stage p{font-size:11px;line-height:1.8;margin-top:7px}.gallery-dialog{width:min(900px,calc(100% - 30px))}.gallery-dialog img{width:100%;border-radius:10px}.gallery-dialog p{font-size:12px;margin:14px 0 0}.breadcrumbs{display:flex;gap:12px;flex-wrap:wrap;font-size:11px;color:var(--muted);margin-bottom:35px}.breadcrumbs a:hover{color:var(--blue)}.detail-section{padding-top:38px}.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}.detail-art img{width:100%;border-radius:20px}.detail-art p{font-size:10px;margin:10px 0}.detail-grid h1{font-size:43px;margin:10px 0 20px}.detail-grid .lead{font-size:17px;line-height:1.8}.detail-grid p{font-size:13px;line-height:1.9}.detail-price{background:#f0f6ff;border-radius:12px;padding:20px;margin:25px 0}.detail-price small{font-size:9px;letter-spacing:1px;color:var(--blue)}.detail-price strong{display:block;font-size:22px;color:var(--blue-dark);margin-top:5px}.detail-price p{font-size:11px;margin:5px 0 0}.detail-call{display:block;margin-top:15px}.detail-info{display:grid;grid-template-columns:1fr 1fr;gap:70px;padding-top:65px;margin-top:50px;border-top:1px solid var(--line)}.detail-info h2{font-size:25px}.detail-info p,.detail-info li{font-size:13px;color:var(--muted);line-height:1.9}.detail-info ul{padding-left:19px}.detail-info a{color:var(--blue);text-decoration:underline}.related{margin-top:60px}.related h2{font-size:28px;margin-bottom:25px}.guide{max-width:860px}.guide h1{font-size:39px}.guide h2{font-size:25px;margin-top:35px}.guide p,.guide li{font-size:14px;line-height:1.9}.guide code{background:#edf3fb;padding:3px 5px;border-radius:4px;font-size:12px;overflow-wrap:anywhere}.guide a{color:var(--blue);text-decoration:underline}
@media(min-width:1440px){.hero-grid{padding-top:65px;padding-bottom:55px}}@media(max-width:1150px){.container{width:calc(100% - 64px)}.nav{gap:19px}.nav nav{gap:17px}.nav-phone{display:none}.hero h1{font-size:53px}.hero-actions{gap:18px}.hero-meta{gap:12px;flex-wrap:wrap}.quote-layout{gap:40px}.contact-grid{gap:45px}.gallery-item>span{align-items:flex-start;flex-direction:column;gap:3px}.price-layout{gap:40px}.faq-layout{gap:60px}}@media(max-width:900px){.nav nav{position:absolute;left:0;right:0;top:75px;background:#fff;border-bottom:1px solid var(--line);padding:20px 32px;display:none;box-shadow:0 14px 25px #18355112}.nav nav.open{display:flex;flex-wrap:wrap}.menu-toggle{display:inline-flex}.nav{height:75px}.nav-quote{margin-left:auto}.hero-grid{grid-template-columns:1fr 1fr;padding-top:40px}.hero h1{font-size:42px;letter-spacing:-1.4px}.hero-description{font-size:13px}.hero-tagline{font-size:18px}.hero-actions{align-items:flex-start;flex-direction:column;gap:18px}.hero-actions .text-button{font-size:12px}.hero-visual{margin-right:-20px}.kicker{font-size:9px;letter-spacing:1px}.section{padding:65px 0}.service-ribbon .container{font-size:9px;gap:14px}.service-ribbon i{font-size:19px}.section-heading{gap:20px}.section-heading p{font-size:12px}.service-grid{gap:15px}.card-content{padding:17px}.card-content h3{font-size:18px}.card-content p{min-height:65px}.card-bottom{align-items:flex-start}.card-bottom span{font-size:9px}.estimator-layout{grid-template-columns:1fr 1fr;gap:18px}.panel{padding:22px}.estimate-result{padding:25px}.estimate-result h3{font-size:24px}.summary-size{font-size:28px}.result-money strong{font-size:23px}.three-fields{gap:9px}.price-layout{grid-template-columns:1fr}.price-layout>div>p{max-width:none}.gallery-section{padding-top:0}.quote-layout{gap:25px}.two-fields{gap:12px}.quote-form .two-fields{grid-template-columns:1fr;gap:0}.contact-grid{gap:30px}.contact-grid h2 span{font-size:23px}.faq-layout{gap:35px}.footer-grid{grid-template-columns:1fr 1fr;gap:25px 45px}.detail-grid{gap:30px}.detail-grid h1{font-size:34px}.detail-info{gap:40px}}
@media(max-width:640px){.container{width:calc(100% - 36px)}html{scroll-padding-top:90px}.topbar .container{justify-content:center;min-height:29px}.topbar .container>span:last-child{display:none}.topbar{font-size:10px}.nav{height:70px;gap:12px}.nav nav{top:70px;padding:20px 22px;gap:22px}.brand-icon{width:37px;height:37px;line-height:37px;font-size:30px;border-radius:9px;letter-spacing:-6px;padding-left:4px}.brand-icon span{font-size:25px}.brand strong{font-size:17px}.brand small{font-size:8px}.brand{gap:8px}.nav-quote{font-size:10px!important;padding:9px 11px!important;min-height:36px!important;gap:6px}.nav-quote svg{width:15px}.menu-toggle{height:36px;width:36px;border-radius:7px}.menu-toggle svg{width:20px}.hero-grid{grid-template-columns:1fr;padding-top:35px;padding-bottom:22px;gap:20px}.hero h1{font-size:45px;letter-spacing:-1.7px;line-height:1.2}.kicker{font-size:10px;margin-bottom:22px}.hero-tagline{font-size:20px;margin-top:22px}.hero-description{font-size:14px;max-width:380px}.hero-actions{flex-direction:row;align-items:center;gap:19px;margin:25px 0 15px}.hero-actions>.button{font-size:12px;padding:12px 16px;min-height:46px;gap:8px}.hero-actions .text-button{font-size:11px;gap:5px}.hero-meta{font-size:10px;gap:15px;padding-top:5px}.hero-visual{margin:8px 0 0;border-radius:20px}.hero-visual img{max-height:380px;object-fit:contain}.visual-label{top:5%;font-size:7px}.visual-note{font-size:8px;bottom:2%}.service-ribbon .container{overflow:auto;white-space:nowrap;width:100%;padding:14px 18px;gap:20px;justify-content:flex-start;scrollbar-width:none}.service-ribbon i{font-size:17px}.section{padding:49px 0}.section-heading{align-items:flex-start;flex-direction:column;gap:13px;margin-bottom:22px}.section-heading h2{font-size:32px}.section-heading p{font-size:12px}.section-heading p br{display:none}.eyebrow{font-size:9px;letter-spacing:1.5px;margin-bottom:11px}.search-row{margin-top:23px;gap:10px}.search-box{padding:0 12px}.search-box input{font-size:12px;padding:13px 0}.search-shortcut{display:none}.result-count{font-size:10px}.chips{gap:7px;margin:16px 0}.chip{padding:8px 10px;font-size:10px;min-height:35px}.gallery-disclaimer{font-size:10px;margin-bottom:17px}.service-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.card-image{aspect-ratio:1.35}.service-card{border-radius:12px}.card-content{padding:14px 12px}.card-content .eyebrow{font-size:7px;letter-spacing:.5px;margin-bottom:8px}.card-content h3{font-size:17px;line-height:1.3;min-height:42px;margin-bottom:8px}.card-content p{font-size:10px;line-height:1.7;min-height:68px;margin-bottom:13px}.card-bottom{padding-top:11px;gap:5px;align-items:center}.card-bottom span{font-size:8px;line-height:1.7}.card-bottom button{width:32px;height:32px}.card-bottom svg{width:16px}.more-row{flex-direction:column;gap:12px;margin-top:24px}.more-row .button{font-size:12px;min-height:43px}.estimator-layout{grid-template-columns:1fr;gap:20px;margin-top:27px}.panel{padding:23px 20px;border-radius:15px}.panel-title{margin-bottom:22px}.panel-title h3{font-size:17px}.estimate-result{position:static;padding:25px 22px}.summary-size{font-size:35px}.estimate-result h3{margin-top:23px}.result-money strong{font-size:26px}.result-fineprint{margin:18px 0}.result-stats{padding:20px 0}.result-money{padding-top:20px}.price-layout{gap:24px}.price-layout h2 br{display:none}.price-row{padding:18px 15px;gap:15px;font-size:11px}.price-row>span:first-child{max-width:58%}.price-row>span:last-child{font-size:10px}.price-row b{font-size:20px}.price-table>p{padding:13px 15px}.gallery-section{padding-top:0}.gallery-grid{grid-template-columns:1fr 1fr;gap:12px}.gallery-item img{aspect-ratio:1.35}.gallery-item>span{padding:12px;gap:4px}.gallery-item b{font-size:10px;line-height:1.4}.gallery-item small{font-size:6px;letter-spacing:.3px}.quote-layout{grid-template-columns:1fr;gap:25px}.quote-intro>p{font-size:13px;max-width:none}.quote-steps{display:none}.privacy-note{max-width:none;margin-top:18px;padding-top:15px}.quote-form .two-fields{grid-template-columns:1fr 1fr;gap:12px}.quote-form .two-fields label{font-size:10px}.quote-form .two-fields label small{display:block;font-size:9px}.contact-grid{grid-template-columns:1fr;gap:35px}.contact-grid h2{font-size:33px}.contact-grid h2 span{font-size:25px}.map-placeholder{height:235px}.map-card iframe{height:235px}.faq-layout{grid-template-columns:1fr;gap:10px}.faq-layout h2 br{display:none}.faq-layout h2{font-size:31px}summary{font-size:13px;line-height:1.7}.footer-grid{grid-template-columns:1fr 1fr;gap:30px 20px}.footer-grid>div:first-child{grid-column:1/-1}.footer-grid>div:first-child p{display:none}.footer-grid>div:last-child{grid-column:1/-1}.footer-grid p{margin:12px 0}.private-label{margin-top:13px}.footer-bottom{display:block;font-size:9px;line-height:1.8;padding-right:50px}.footer-bottom span{display:block}.floating-contact{right:12px;bottom:14px;gap:8px}.floating-contact>a{width:45px;height:45px}.toast{bottom:18px;font-size:11px;padding:12px 15px}dialog{padding:22px 18px;border-radius:15px;max-height:92dvh}.dialog-heading h2{font-size:22px}.dialog-heading{gap:10px}.dialog-heading .icon-button{width:36px;height:36px}.dialog-actions .button{flex:1;white-space:nowrap;font-size:11px}.dialog-actions .text-button{width:100%;padding:10px}.detail-section{padding-top:25px}.breadcrumbs{gap:7px;font-size:10px;margin-bottom:25px}.detail-grid{grid-template-columns:1fr;gap:22px}.detail-art img{max-height:260px;object-fit:cover}.detail-grid h1{font-size:36px}.detail-info{grid-template-columns:1fr;gap:20px;margin-top:35px;padding-top:35px}.detail-info h2{font-size:24px}.related{margin-top:30px}.related h2{font-size:26px}.guide h1{font-size:32px}.guide h2{font-size:24px}.guide p,.guide li{font-size:13px}.desktop{display:none}}@media(max-width:370px){.brand small{display:none}.brand strong{font-size:15px}.nav-quote{font-size:9px!important;padding:8px!important}.hero h1{font-size:40px}.hero-actions{gap:12px}.hero-actions .text-button{font-size:10px}.hero-actions>.button{font-size:11px;padding:12px}.hero-meta{font-size:9px;gap:10px}.service-grid{gap:9px}.card-content h3{font-size:15px}.card-content{padding:13px 10px}.card-content p{min-height:82px}.quote-form .two-fields{grid-template-columns:1fr;gap:0}.search-box input{font-size:11px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}
/* Keep the information and controls readable on small touch screens. */
@media(max-width:640px){.field input:not([type=checkbox]),.field select,.field textarea{font-size:16px}.card-content p{font-size:12px;min-height:104px;line-height:1.7}.card-content .eyebrow{font-size:9px}.card-bottom span{font-size:10px}.gallery-item b{font-size:12px}.gallery-item small{font-size:9px;letter-spacing:0}.field small,.form-footnote,.gallery-disclaimer,.privacy-note p,.map-note,.price-table>p{font-size:11px}.quote-form .two-fields{grid-template-columns:1fr;gap:0}.quote-form .two-fields label{font-size:12px}.quote-form .two-fields label small{display:inline;font-size:10px}.footer-grid a:not(.brand),.footer-grid p{font-size:12px}.upload-field input[type=file]{font-size:12px}.gallery-item>span{min-height:75px}.search-box input{font-size:14px}.search-box{min-width:0}.private-label{font-size:10px}}
@media(max-width:370px){.nav-quote svg{display:none}.card-content p{min-height:125px}.card-content h3{font-size:16px}.card-bottom{flex-wrap:wrap;gap:7px}}
/* AI product illustrations: retain their complete composition and label provenance. */
.hero-visual{border:1px solid #e4eaf2;background:#eaf2fc;box-shadow:0 18px 50px #294e7e13}
.hero-visual img{aspect-ratio:3/2;object-fit:contain}
.visual-label{top:16px;left:16px;right:16px;color:#21508c;align-items:center;gap:10px;letter-spacing:1.1px}
.visual-label>span{background:#ffffffed;padding:6px 9px;border-radius:5px;font-size:8px;color:#43668e}
.visual-label{width:max-content;max-width:calc(100% - 32px);background:#ffffffed;padding:6px 10px;border-radius:6px}
.visual-label>span{padding:0 0 0 8px;border-left:1px solid #b5c9df;border-radius:0}
.visual-note{bottom:14px;left:16px;background:#fffffff2;color:#345a87;border-radius:6px;padding:6px 9px;letter-spacing:.1px}
.card-image{position:relative;aspect-ratio:3/2}
.image-ai-badge{position:absolute;bottom:9px;left:10px;background:#ffffffeb;border:1px solid #ffffffb3;border-radius:4px;padding:3px 7px;color:#47617f;font-size:8px;line-height:1.5;pointer-events:none}
.gallery-item img{aspect-ratio:3/2;object-fit:contain}
@media(max-width:640px){.hero-visual img{max-height:none}.visual-note{font-size:9px;bottom:10px;left:10px}.visual-label{left:10px;top:10px;font-size:8px;max-width:calc(100% - 20px)}.card-image{aspect-ratio:3/2}.image-ai-badge{font-size:8px;left:7px;bottom:7px;padding:2px 5px}.gallery-item img{aspect-ratio:3/2}.detail-art img{object-fit:contain}}