:root{--bg: #F6F1E7;--bg-dark: #172018;--brick: #B65C38;--brick-dark: #96482A;--moss: #5F7A5D;--ink: #1C2620;--ink-soft: #4B564D;--cream: #FBF8F2;--line: #D8CFB8;--line-dark: #2C382E;--header-1: #0B2545;--header-2: #134074;--header-3: #1B6CA8;--header-4: #3E92CC;--accent-blue: #1B6CA8;--accent-blue-dark: #134074;--font-head: "Times New Roman", Times, serif;--font-body: "Times New Roman", Times, serif;--max: 1180px;--radius: 3px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-body);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}img{max-width:100%;display:block}a{color:inherit;text-decoration:none}h1,h2,h3{font-family:var(--font-head);font-weight:600;margin:0 0 .5em;color:var(--ink);line-height:1.15}p{margin:0 0 1em;color:var(--ink-soft)}code{background:#0000000f;padding:.1em .4em;border-radius:2px;font-size:.85em}.container{max-width:var(--max);margin:0 auto;padding:0 28px}@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}.mortar-line{height:3px;background:repeating-linear-gradient(90deg,var(--line) 0 40px,transparent 40px 44px)}.site-header{position:sticky;top:0;z-index:50;background:linear-gradient(115deg,var(--header-1),var(--header-2),var(--header-3),var(--header-4),var(--header-2));background-size:320% 320%;animation:headerFlow 16s ease-in-out infinite;border-bottom:1px solid rgba(255,255,255,.12);box-shadow:0 2px 18px #0b25452e}@keyframes headerFlow{0%{background-position:0% 45%}50%{background-position:100% 55%}to{background-position:0% 45%}}.header-inner{display:flex;align-items:center;justify-content:space-between;height:74px}.logo{display:flex;align-items:center;gap:10px}.logo-mark{width:38px;height:38px;border-radius:50%;overflow:hidden;flex-shrink:0;display:flex;align-items:center;justify-content:center;background:#ffffff14;border:1px solid rgba(255,255,255,.35)}.logo-img{width:100%;height:100%;object-fit:cover;display:block}.logo-mark.is-placeholder{background:linear-gradient(135deg,var(--header-3),var(--header-4))}.logo-mark.is-placeholder .logo-img{display:none}.logo-mark.is-placeholder:after{content:"BC";font-family:var(--font-head);font-weight:700;font-size:.9rem;color:#fff;letter-spacing:.02em}.logo-text{font-family:var(--font-head);font-weight:700;font-size:1.35rem;letter-spacing:.02em;color:#fff}.main-nav{display:flex;align-items:center;gap:30px}.main-nav a{font-size:.95rem;font-weight:500;color:#d6e9fb;padding:6px 2px;border-bottom:2px solid transparent}.main-nav a:hover{color:#fff;border-color:#fff}.nav-cta{background:#ffffff24;color:#fff!important;padding:10px 20px!important;border-radius:var(--radius);border:1px solid rgba(255,255,255,.55)!important}.nav-cta:hover{background:#fff;color:var(--header-1)!important;border-color:#fff!important}.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:38px;height:38px;background:none;border:none;cursor:pointer;padding:0}.nav-toggle span{display:block;height:2px;width:100%;background:#fff}.hero{position:relative;background:var(--bg-dark);color:var(--cream);overflow:hidden;padding:96px 0 64px}.hero-bg{position:absolute;top:0;right:0;bottom:0;left:0;opacity:.1;pointer-events:none}.brick-row{display:flex;height:15%;background-image:repeating-linear-gradient(90deg,var(--cream) 0 118px,transparent 118px 124px)}.brick-row.offset{background-position-x:62px}.brick-row:nth-child(1){margin-top:2%}.brick-row:nth-child(2){margin-top:6%}.brick-row:nth-child(3){margin-top:6%}.brick-row:nth-child(4){margin-top:6%}.hero-inner{position:relative;max-width:720px}.eyebrow-line{color:var(--brick);font-weight:600;font-size:.95rem;margin-bottom:14px}.hero h1{color:var(--cream);font-size:clamp(2.1rem,4.4vw,3.4rem);margin-bottom:20px}.hero-sub{color:#d9d3c4;font-size:1.08rem;max-width:580px}.hero-actions{display:flex;gap:16px;margin:28px 0 56px;flex-wrap:wrap}.btn{display:inline-block;padding:13px 26px;border-radius:var(--radius);font-weight:600;font-size:.98rem;border:1.5px solid transparent;cursor:pointer}.btn-primary{background:var(--accent-blue);color:var(--cream)}.btn-primary:hover{background:var(--accent-blue-dark)}.btn-outline{border-color:#63705f;color:var(--cream)}.btn-outline:hover{border-color:var(--cream)}.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;border-top:1px solid var(--line-dark);padding-top:28px}.hero-stats strong{display:block;font-family:var(--font-head);font-size:1.7rem;color:var(--brick)}.hero-stats span{font-size:.85rem;color:#b9b3a4}.section{padding:76px 0}.section-title{font-size:clamp(1.6rem,3vw,2.2rem);margin-bottom:14px}.section-lead{max-width:640px;margin-bottom:36px}.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:start}.about-text h2{font-size:clamp(1.7rem,3vw,2.3rem);max-width:14ch}.figure-item{display:flex;gap:18px;padding:20px 0;border-top:1px solid var(--line)}.figure-item:last-child{border-bottom:1px solid var(--line)}.figure-num{font-family:var(--font-head);font-size:1.4rem;color:var(--brick);min-width:34px}.figure-item h3{font-size:1.05rem;margin-bottom:4px}.figure-item p{font-size:.92rem;margin:0}.benefit-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.benefit-item{padding:32px 30px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}.benefit-item svg{color:var(--brick);margin-bottom:14px}.benefit-item h3{font-size:1.05rem;margin-bottom:6px}.benefit-item p{font-size:.92rem;margin:0}.img-box{border-radius:var(--radius);overflow:hidden;background:linear-gradient(135deg,var(--brick) 0%,var(--moss) 100%);position:relative}.img-box img{width:100%;height:100%;object-fit:cover}.img-box.is-placeholder:after{content:attr(data-label);position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;text-align:center;padding:14px;font-size:.82rem;font-weight:600;color:#ffffffeb;background:linear-gradient(135deg,var(--brick) 0%,var(--moss) 100%)}.tilt-box{perspective:900px;cursor:pointer}.tilt-img{transition:transform .28s cubic-bezier(.22,.9,.35,1),box-shadow .28s ease;transform-style:preserve-3d;will-change:transform;box-shadow:0 0 #1c262000}.tilt-box:hover .tilt-img,.tilt-box.is-tilting .tilt-img{box-shadow:0 22px 30px -14px #1c262073}.tilt-box.is-tilting .tilt-img{transition:transform .08s linear}.formula-row{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:14px 18px}.formula-item{display:flex;flex-direction:column;align-items:center;gap:12px;width:130px;text-align:center}.formula-img{width:120px;height:120px;border-radius:50%;border:1px solid var(--line)}.formula-img.is-placeholder:after{font-size:.72rem;padding:8px}.formula-label{font-size:.86rem;font-weight:600;color:var(--ink-soft)}.formula-op{font-family:var(--font-head);font-size:2rem;font-weight:700;color:var(--brick);line-height:1;padding-bottom:26px}.formula-eq{color:var(--accent-blue);font-size:2.3rem}.formula-result{width:170px}.formula-img-result{width:170px;height:150px;border-radius:10px;border:2px solid var(--accent-blue);box-shadow:0 14px 26px -14px #13407466}.formula-label-strong{color:var(--ink);font-size:.95rem}.process-track{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:2px solid var(--brick)}.process-step{padding:26px 22px 0;border-right:1px solid var(--line);position:relative}.process-step:last-child{border-right:none}.step-index{display:block;font-family:var(--font-head);font-size:1.5rem;color:var(--brick);margin-bottom:10px}.process-step h3{font-size:1rem;margin-bottom:6px}.process-step p{font-size:.88rem;margin:0}.video-section{background:var(--cream)}.video-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:50px;align-items:center}.video-text h2{font-size:clamp(1.6rem,3vw,2.1rem)}.video-note{font-size:.85rem;color:var(--ink-soft)}.video-wrap{position:relative;width:100%;border-radius:var(--radius);overflow:hidden;background:var(--bg-dark);border:1px solid var(--line);box-shadow:0 10px 25px -5px #00000026}.video-wrap video{width:100%;height:auto;display:block;object-fit:cover}.video-wrap iframe{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;border:0}.video-wrap:has(iframe){padding-top:56.25%}.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:150px;gap:16px}.gallery-item{position:relative;overflow:hidden;border-radius:var(--radius);background:linear-gradient(135deg,var(--moss) 0%,var(--brick) 100%)}.gallery-item.tall{grid-row:span 2}.gallery-item img{width:100%;height:100%;object-fit:cover}.gallery-item.is-placeholder img{visibility:hidden}.gallery-item.is-placeholder:after{content:attr(data-label);position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:flex-end;padding:14px;font-size:.8rem;font-weight:600;color:#ffffffd9;background:linear-gradient(180deg,transparent 40%,rgba(0,0,0,.45) 100%),linear-gradient(135deg,var(--moss) 0%,var(--brick) 100%)}.gallery-label{position:absolute;left:0;right:0;bottom:0;padding:12px 14px;font-size:.8rem;font-weight:600;color:#fff;background:linear-gradient(180deg,transparent,rgba(0,0,0,.55))}.contact{background:var(--bg-dark);color:var(--cream)}.contact h2{color:var(--cream)}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px}.contact-info p{color:#c9c3b4}.contact-list{list-style:none;margin:26px 0;padding:0}.contact-list li{display:flex;justify-content:space-between;gap:12px;padding:14px 0;border-top:1px solid var(--line-dark)}.contact-list li:last-child{border-bottom:1px solid var(--line-dark)}.contact-label{color:#93998f;font-size:.9rem}.contact-value{font-weight:600;color:var(--cream)}.contact-btn{margin-top:6px}.contact-form{background:var(--cream);color:var(--ink);border-radius:var(--radius);padding:32px}.contact-form h3{font-size:1.2rem}.form-row{margin-bottom:16px}.form-row label{display:block;font-size:.88rem;font-weight:600;margin-bottom:6px}.form-row input,.form-row textarea{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:var(--radius);font-family:var(--font-body);font-size:16px;background:#fff;color:var(--ink)}.form-row input:focus,.form-row textarea:focus{outline:2px solid var(--brick);outline-offset:1px;border-color:var(--brick)}.form-submit{width:100%;border:none}.form-note{margin:12px 0 0;font-size:.88rem;color:var(--moss);min-height:1.2em}.site-footer{background:#101610;color:#b9b3a4;padding-top:48px}.footer-inner{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;padding-bottom:32px;border-bottom:1px solid var(--line-dark)}.footer-brand .logo-text{color:var(--cream)}.footer-brand p{color:#8b9086;max-width:340px;margin-top:8px}.footer-contact p{margin:0 0 6px;color:#b9b3a4}.footer-contact a:hover{color:var(--brick)}.footer-bottom{padding:20px 0;font-size:.82rem}.back-to-top{position:fixed;right:22px;bottom:22px;z-index:40;width:44px;height:44px;border-radius:50%;border:none;background:var(--brick);color:#fff;font-size:1.1rem;cursor:pointer;opacity:0;pointer-events:none;transform:translateY(8px);transition:opacity .2s ease,transform .2s ease}.back-to-top.visible{opacity:1;pointer-events:auto;transform:translateY(0)}@media (max-width: 960px){.about-grid,.video-grid,.contact-grid{grid-template-columns:1fr;gap:36px}.benefit-grid{grid-template-columns:repeat(2,1fr)}.process-track{grid-template-columns:repeat(1,1fr);border-top:none}.process-step{border-right:none;border-left:2px solid var(--brick);padding-bottom:22px}.gallery-grid{grid-template-columns:repeat(2,1fr)}.gallery-item.tall{grid-row:span 1}.hero-stats{grid-template-columns:1fr;gap:16px}}@media (max-width: 720px){.main-nav{position:fixed;top:74px;right:0;bottom:0;left:0;background:linear-gradient(160deg,var(--header-1),var(--header-2));flex-direction:column;align-items:flex-start;gap:0;padding:10px 28px 28px;border-top:1px solid rgba(255,255,255,.15);transform:translate(100%);transition:transform .25s ease}.main-nav.open{transform:translate(0)}.main-nav a{width:100%;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.15);color:#e4f1fc}.nav-cta{margin-top:14px;text-align:center}.nav-toggle{display:flex}.hero{padding:56px 0 40px}.section{padding:52px 0}.benefit-grid{grid-template-columns:1fr}.gallery-grid{grid-template-columns:1fr 1fr;grid-auto-rows:130px}.contact-form{padding:24px}.formula-row{flex-direction:column;gap:6px}.formula-op{padding-bottom:0;transform:rotate(90deg)}.formula-eq{transform:none}.tilt-img{transform:none!important}}@media (max-width: 480px){.container{padding:0 18px}.header-inner{height:64px}.main-nav{top:64px}}@media (hover: none){.tilt-img{transform:none!important}}