:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;--container-max-w:1240px;--section-gap:clamp(4.5rem, 3.5rem + 3vw, 7.5rem);--bg:#f2ede5;--surface:#fbf8f2;--surface-muted:#e4dbcf;--surface-subtle:#f7f3ed;--border:#20262b17;--border-strong:#20262b29;--border-subtle:#20262b0e;--text:#20262b;--text-muted:#626b72;--text-faint:#87837c;--accent:#1b405f;--accent-hover:#122f49;--accent-contrast:#f8f3ea;--accent-subtle:#1b405f18;--accent-border:#1b405f33;--metal:#b89b70;--metal-soft:#d4c1a0;--metal-subtle:#b89b7029;--success:#476454;--warning:#a97848;--danger:#9d5b58;--nav-bg:#fbf8f2e6;--nav-border:#20262b1a;--overlay:#191f246b;--overlay-strong:#191f24bd;--caption-text:#f8f3ea;--scrollbar-thumb:#20262b40;--scrollbar-thumb-hover:#20262b57;--nav-blur:blur(18px);--btn-h-sm:34px;--btn-h-md:42px;--btn-h-lg:48px;--input-h:42px;--r-xs:8px;--r-sm:12px;--r-md:18px;--r-lg:24px;--r-full:9999px;--font-sans:"Be Vietnam Pro", -apple-system, sans-serif;--font-display:"Plus 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;--lightningcss-dark:initial}:root:not([data-appearance=light]){--bg:#171c22;--surface:#20272e;--surface-muted:#2a333b;--surface-subtle:#1c232a;--border:#eee8de17;--border-strong:#eee8de26;--border-subtle:#eee8de0e;--text:#f2ece2;--text-muted:#c9c1b6;--text-faint:#a59d92;--accent:#7898b4;--accent-hover:#9db6cc;--accent-contrast:#17212a;--accent-subtle:#7898b429;--accent-border:#7898b44d;--metal:#c6aa7e;--metal-soft:#d9c5a4;--metal-subtle:#c6aa7e1f;--nav-bg:#171c22e6;--nav-border:#eee8de17;--overlay:#080c1094;--overlay-strong:#080c10c7;--caption-text:#f2ece2;--scrollbar-thumb:#eee8de38;--scrollbar-thumb-hover:#eee8de4d;--shadow-subtle:0 1px 2px #00000061;--shadow-sm:0 10px 26px -16px #00000085;--shadow-md:0 18px 38px -18px #0009;--shadow-lg:0 26px 54px -22px #000000ad}}:root[data-appearance=dark]{--bg:#171c22;--surface:#20272e;--surface-muted:#2a333b;--surface-subtle:#1c232a;--border:#eee8de17;--border-strong:#eee8de26;--border-subtle:#eee8de0e;--text:#f2ece2;--text-muted:#c9c1b6;--text-faint:#a59d92;--accent:#7898b4;--accent-hover:#9db6cc;--accent-contrast:#17212a;--accent-subtle:#7898b429;--accent-border:#7898b44d;--metal:#c6aa7e;--metal-soft:#d9c5a4;--metal-subtle:#c6aa7e1f;--nav-bg:#171c22e6;--nav-border:#eee8de17;--overlay:#080c1094;--overlay-strong:#080c10c7;--caption-text:#f2ece2;--scrollbar-thumb:#eee8de38;--scrollbar-thumb-hover:#eee8de4d;--shadow-subtle:0 1px 2px #00000061;--shadow-sm:0 10px 26px -16px #00000085;--shadow-md:0 18px 38px -18px #0009;--shadow-lg:0 26px 54px -22px 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var(--border);border-radius:var(--r-lg);padding:var(--space-5);box-shadow:var(--shadow-subtle)}.picker-head{margin-bottom:var(--space-3);justify-content:space-between;align-items:center;display:flex}.picker-label{font-size:var(--fs-sm);color:var(--text);font-weight:600}.picker-count{font-size:var(--fs-xs);color:var(--text-faint)}.picker-search-wrap{margin-bottom:var(--space-3);position:relative}.picker-search-icon{color:var(--text-faint);position:absolute;top:50%;left:12px;transform:translateY(-50%)}.picker-input{width:100%;height:var(--input-h);border:1px solid var(--border-strong);border-radius:var(--r-md);background:var(--bg);color:var(--text);font-family:inherit;font-size:var(--fs-sm);outline:none;padding:0 32px 0 36px;transition:border-color .2s,box-shadow .2s}.picker-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-subtle)}.picker-search-clear{color:var(--text-faint);cursor:pointer;background:0 0;border:0;justify-content:center;align-items:center;padding:0;font-size:1.125rem;display:flex;position:absolute;top:50%;right:10px;transform:translateY(-50%)}.picker-chips{margin-bottom:var(--space-3);flex-wrap:wrap;gap:4px;display:flex}.picker-chip{border-radius:var(--r-xs);border:1px solid var(--border);background:var(--surface-muted);color:var(--text-muted);font-family:inherit;font-size:var(--fs-2xs);cursor:pointer;padding:4px 10px;font-weight:500;transition:all .15s}.picker-chip:hover{color:var(--text);border-color:var(--border-strong)}.picker-chip.is-active{background:var(--accent);color:var(--accent-contrast);border-color:var(--accent)}.picker-list{scrollbar-width:thin;scrollbar-color:var(--scrollbar-thumb) transparent;flex-direction:column;gap:3px;max-height:380px;margin:0;padding:0 4px 0 0;list-style:none;display:flex;overflow-y:auto}.picker-list::-webkit-scrollbar{width:8px;height:8px}.picker-list::-webkit-scrollbar-track{background:0 0}.picker-list::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb);background-clip:padding-box;border:2px solid #0000;border-radius:999px}.picker-list::-webkit-scrollbar-thumb:hover{background:var(--scrollbar-thumb-hover);border:2px solid #0000}@media (width<=919px){.picker-list{max-height:260px}}.picker-item{border-radius:var(--r-sm);width:100%;color:var(--text);text-align:left;cursor:pointer;background:0 0;border:1px solid #0000;padding:10px 12px;font-family:inherit;transition:all .15s}.picker-item:hover{background:var(--surface-muted)}.picker-item.is-selected{background:var(--surface-muted);border-color:var(--accent-border)}.picker-item-content{flex-direction:column;gap:3px;display:flex}.picker-item-name-row{justify-content:space-between;align-items:center;gap:8px;display:flex}.picker-item-name{font-size:var(--fs-sm);color:var(--text);font-weight:600;line-height:1.35}.picker-item-check{color:var(--accent);flex-shrink:0}.picker-item-category{font-size:var(--fs-xs);color:var(--text-faint)}.picker-more{margin:var(--space-3) 0 0;font-size:var(--fs-xs);color:var(--text-faint);text-align:center}.picker-empty{padding:var(--space-6) 0;text-align:center;color:var(--text-muted);font-size:var(--fs-sm)}.studio-workbench{background:var(--surface);background:color-mix(in srgb, var(--surface) 80%, transparent);-webkit-backdrop-filter:blur(20px);border:1px solid color-mix(in srgb, white 50%, 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img{object-fit:cover;width:100%;height:100%;display:block}.workbench-product-info{flex:1;min-width:0}.workbench-product-tag{font-size:var(--fs-2xs);color:var(--accent);text-transform:uppercase;letter-spacing:.08em;margin-bottom:4px;font-weight:600}.workbench-product-title{font-size:var(--fs-xl);letter-spacing:-.02em;color:var(--text);margin:0 0 4px;font-weight:700}.workbench-product-code{font-size:var(--fs-xs);color:var(--text-faint)}.workbench-form{gap:var(--space-4);margin-bottom:var(--space-5);flex-direction:column;display:flex}.workbench-input-row{gap:var(--space-3);grid-template-columns:repeat(auto-fit,minmax(130px,1fr));display:grid}.studio-field{flex-direction:column;gap:6px;display:flex}.studio-label{font-size:var(--fs-xs);color:var(--text-muted);font-weight:600}.studio-input-wrap{align-items:center;display:flex;position:relative}.studio-input{min-width:0;height:var(--input-h);border:1px solid var(--border-strong);border-radius:var(--r-md);background:var(--bg);color:var(--text);font-family:inherit;font-size:var(--fs-base);font-variant-numeric:tabular-nums;outline:none;flex:1;padding:0 12px;font-weight:600;transition:border-color .2s,box-shadow .2s}.studio-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-subtle)}.studio-unit{font-size:var(--fs-xs);color:var(--text-faint);pointer-events:none;flex:0 0 34px}@media (width<=768px){.studio-layout:not(.has-selection) .studio-workbench,.studio-layout.has-selection .studio-picker{display:none}.studio-layout.has-selection .workbench-change{display:inline-flex}.workbench-head{gap:var(--space-2);flex-wrap:wrap}}.studio-unit-note{border-radius:var(--r-sm);background:var(--surface-muted);color:var(--text-muted);font-size:var(--fs-xs);align-items:center;gap:8px;padding:10px 14px;display:flex}.workbench-prompt{border-radius:var(--r-sm);background:var(--surface-muted);color:var(--text-faint);font-size:var(--fs-sm);margin-bottom:var(--space-4);align-items:center;gap:8px;padding:12px 14px;display:flex}.workbench-summary{background:var(--surface-muted);border:1px solid var(--border);border-radius:var(--r-md);padding:var(--space-5);margin-bottom:var(--space-5)}.summary-row{justify-content:space-between;align-items:baseline;gap:var(--space-3);font-size:var(--fs-sm);padding:5px 0;display:flex}.summary-label{color:var(--text-muted)}.summary-val{font-variant-numeric:tabular-nums;color:var(--text);font-weight:600}.summary-total-row{justify-content:space-between;align-items:flex-end;gap:var(--space-3);margin-top:var(--space-3);padding-top:var(--space-4);border-top:1px solid var(--border);display:flex}.total-title{font-size:var(--fs-sm);color:var(--text);font-weight:600;display:block}.total-subtitle{font-size:var(--fs-xs);color:var(--text-faint);display:block}.total-price{color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:-.02em;font-size:clamp(1.4rem,1.25rem + .6vw,1.85rem);font-weight:800;line-height:1.1}.workbench-notice{margin-bottom:var(--space-5)}.workbench-notice p{font-size:var(--fs-xs);color:var(--text-faint);margin:0;line-height:1.5}.workbench-actions{gap:var(--space-2);flex-wrap:wrap;display:flex}.btn-wb{flex:140px}.material-story{padding:var(--space-6) 0}.system-tabs{margin-bottom:var(--space-8);justify-content:center;gap:6px;padding-bottom:4px;display:flex;overflow-x:auto}.system-tab{border-radius:var(--r-sm);border:1px solid var(--border);background:var(--surface);color:var(--text-muted);cursor:pointer;white-space:nowrap;flex-direction:column;align-items:center;gap:2px;padding:8px 18px;font-family:inherit;transition:all .2s;display:flex;position:relative}.system-tab:hover{color:var(--text);border-color:var(--border-strong)}.system-tab.is-active{color:var(--text);background:var(--surface-muted);border-color:var(--text)}.system-tab-name{font-size:var(--fs-sm);font-weight:600}.system-tab-badge{font-size:var(--fs-2xs);color:var(--text-faint)}.system-tab-line{background:var(--accent);height:2px;position:absolute;bottom:-1px;left:16px;right:16px}@media (width<=600px){.system-tabs{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;width:100%;display:grid;overflow:visible}.system-tab{white-space:normal;width:100%;min-width:0;padding:9px 8px}.system-tab-name,.system-tab-badge{text-align:center;overflow-wrap:anywhere;max-width:100%}.system-tab-line{left:10px;right:10px}}.system-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:var(--space-8);box-shadow:var(--shadow-sm)}@media 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var(--space-3);font-size:var(--fs-sm);color:var(--text);font-weight:600}.system-highlights-list{flex-direction:column;gap:8px;margin:0;padding:0;list-style:none;display:flex}.system-highlight-item{font-size:var(--fs-sm);color:var(--text-muted);align-items:flex-start;gap:8px;display:flex}.highlight-check{color:var(--success);flex-shrink:0;margin-top:2px}.system-specs-panel{background:var(--surface-muted);border:1px solid var(--border);border-radius:var(--r-md);padding:var(--space-5)}.system-specs-head{font-size:var(--fs-sm);color:var(--text);padding-bottom:var(--space-3);border-bottom:1px solid var(--border);margin-bottom:var(--space-4);align-items:center;gap:8px;font-weight:600;display:flex}.system-specs-dl{margin:0 0 var(--space-5);flex-direction:column;gap:10px;display:flex}.system-spec-row{font-size:var(--fs-xs);justify-content:space-between;gap:12px;display:flex}.system-spec-row dt{color:var(--text-faint)}.system-spec-row dd{color:var(--text);text-align:right;margin:0;font-weight:600}.system-specs-guarantee{padding-top:var(--space-4);border-top:1px solid var(--border);align-items:flex-start;gap:10px;display:flex}.guarantee-icon{color:var(--accent);flex-shrink:0;margin-top:2px}.guarantee-text{font-size:var(--fs-xs);flex-direction:column;line-height:1.45;display:flex}.guarantee-text strong{color:var(--text)}.guarantee-text span{color:var(--text-faint)}.reasons-grid{border:1px solid var(--border);border-radius:var(--r-md);background:var(--surface);grid-template-columns:repeat(3,minmax(0,1fr));display:grid;overflow:hidden}@media (width<=860px){.reasons-grid{grid-template-columns:1fr}}.reason-arch-card{padding:var(--space-8) var(--space-6);background:var(--surface);border:0;border-right:1px solid var(--border);box-shadow:none;flex-direction:column;transition:background-color .25s;display:flex}.reason-arch-card:last-child{border-right:0}@media (width<=860px){.reason-arch-card{border-right:0;border-bottom:1px solid var(--border);padding:var(--space-6)}.reason-arch-card:last-child{border-bottom:0}}.reason-arch-card:hover{background:var(--surface-subtle)}.reason-card-head{margin-bottom:var(--space-5);justify-content:space-between;align-items:center;display:flex}.reason-index{font-family:var(--font-mono);font-size:var(--fs-xs);color:var(--accent);letter-spacing:.08em;font-weight:700}.reason-icon{color:var(--text-faint)}.reason-arch-title{margin:0 0 var(--space-3);font-size:var(--fs-base);color:var(--text);font-weight:600;line-height:1.35}.reason-arch-body{color:var(--text-muted);font-size:var(--fs-sm);margin:0;line-height:1.65}.contact-premium-section{position:relative}.contact-premium-card{padding:var(--space-10) var(--space-8);background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--shadow-sm);position:relative;overflow:hidden}@media (width<=768px){.contact-premium-card{padding:var(--space-6) var(--space-4)}}.contact-ambient-glow{background:radial-gradient(circle, var(--accent-subtle) 0%, transparent 70%);pointer-events:none;width:360px;height:360px;position:absolute;top:-80px;right:-80px}.contact-premium-grid{z-index:1;gap:var(--space-10);grid-template-columns:minmax(0,1.05fr) minmax(320px,.95fr);align-items:center;display:grid;position:relative}.contact-premium-content{z-index:1;max-width:780px;position:relative}.contact-map-panel{min-width:0;padding:var(--space-3);background:var(--surface-subtle);border:1px solid var(--border);border-radius:var(--r-md);box-shadow:var(--shadow-subtle)}.contact-map-heading{justify-content:space-between;align-items:center;gap:var(--space-3);padding:var(--space-2) var(--space-2) var(--space-3);display:flex}.contact-map-heading>div{min-width:0}.contact-map-heading strong{color:var(--text);font-size:var(--fs-sm);margin-top:3px;font-weight:600;display:block}.contact-map-link{width:34px;height:34px;color:var(--accent);border:1px solid var(--accent-border);border-radius:var(--r-xs);background:var(--accent-subtle);flex:none;justify-content:center;align-items:center;transition:color .2s,background-color .2s,transform .2s;display:inline-flex}.contact-map-link:hover{color:var(--accent-hover);background:var(--metal-subtle);transform:translateY(-1px)}.contact-map-frame{aspect-ratio:4/3;border-radius:var(--r-sm);background:var(--surface-muted);min-height:260px;position:relative;overflow:hidden}.contact-map-frame iframe{filter:saturate(.82)contrast(.96);border:0;width:100%;height:100%;display:block}@media (width<=768px){.contact-premium-grid{gap:var(--space-8);grid-template-columns:1fr}.contact-map-frame{min-height:240px}}.contact-premium-title{margin:0 0 var(--space-4);letter-spacing:-.03em;color:var(--text);text-wrap:balance;font-size:clamp(1.75rem,1.4rem + 1.6vw,2.5rem);font-weight:800;line-height:1.15}.contact-premium-desc{margin:0 0 var(--space-8);font-size:var(--fs-base);color:var(--text-muted);max-width:62ch;line-height:1.65}.contact-premium-actions{gap:var(--space-3);margin-bottom:var(--space-8);flex-wrap:wrap;display:flex}.contact-premium-meta{gap:var(--space-4);padding-top:var(--space-6);border-top:1px solid var(--border);grid-template-columns:repeat(auto-fit,minmax(240px,1fr));display:grid}.contact-meta-box{align-items:flex-start;gap:12px;display:flex}.contact-meta-icon-wrap{border-radius:var(--r-xs);background:var(--surface-muted);width:32px;height:32px;color:var(--accent);flex-shrink:0;justify-content:center;align-items:center;display:flex}.contact-meta-label{font-size:var(--fs-2xs);color:var(--text-faint);letter-spacing:.04em;text-transform:uppercase;margin-bottom:2px}.contact-meta-val{font-size:var(--fs-sm);color:var(--text);font-weight:500}.shell-foot{margin-top:var(--space-12);padding-top:var(--space-8);border-top:1px solid var(--border)}.shell-foot-inner{justify-content:space-between;gap:var(--space-6);flex-wrap:wrap;display:flex}.shell-foot-brand strong{letter-spacing:-.02em;color:var(--text);margin-bottom:4px;font-size:1.0625rem;font-weight:800;display:block}.shell-foot-brand p{font-size:var(--fs-sm);color:var(--text-muted);margin:0}.shell-foot-meta{max-width:520px;font-size:var(--fs-xs);color:var(--text-faint);line-height:1.6}.shell-foot-meta p{margin:0 0 4px}.shell-foot-disclaimer{color:var(--text-faint);font-size:var(--fs-2xs);margin-top:var(--space-3)!important}.skip-link{border-radius:var(--r-xs);background:var(--accent);color:var(--accent-contrast);font-size:var(--fs-sm);z-index:1000;padding:8px 16px;font-weight:500;text-decoration:none;position:absolute;left:-9999px}.skip-link:focus{top:20px;left:20px}a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.arch-notice{padding:var(--space-4);border:1px solid var(--border);border-radius:var(--r-sm);background:var(--surface);color:var(--text-muted)}.placeholder-notice{padding:var(--space-2) var(--space-3);font-size:var(--fs-2xs);color:var(--warning);background:var(--surface-muted);border:1px solid var(--border);border-radius:var(--r-xs);margin-bottom:var(--space-4);text-align:center}