/* ==============================================
   삼성FENG Corporate v3 — Clean & Readable
   ============================================== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

:root{
  --c-red:#D63031;--c-red-d:#b71c1c;--c-red-l:#e74c3c;
  --c-dark:#111113;--c-dark2:#1e1e21;--c-dark3:#2d2d31;
  --c-text:#333;--c-text2:#666;--c-text3:#999;
  --c-bg:#ffffff;--c-bg2:#f7f7f9;--c-bg3:#ededf0;
  --c-border:#e2e2e6;
  --ff:'Noto Sans KR',sans-serif;
  --ff-en:'Poppins',sans-serif;
  --shadow:0 2px 24px rgba(0,0,0,.06);
  --shadow-up:0 -2px 24px rgba(0,0,0,.04);
  --shadow-lg:0 8px 40px rgba(0,0,0,.10);
  --ease:cubic-bezier(.25,.46,.45,.94);
  --r:14px;
}

html{scroll-behavior:smooth}
body{font-family:var(--ff);color:var(--c-text);background:var(--c-bg);line-height:1.8;overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1140px;margin:0 auto;padding:0 28px}
.section{padding:120px 0}

/* ---- SCROLL PROGRESS ---- */
.scroll-progress{position:fixed;top:0;left:0;height:3px;background:var(--c-red);width:0;z-index:10001}

/* ---- COMMON ---- */
.tag{display:inline-block;font-family:var(--ff-en);font-size:.7rem;font-weight:700;letter-spacing:3px;color:var(--c-red);text-transform:uppercase;margin-bottom:10px}
.sec-head{text-align:center;margin-bottom:60px}
.sec-head h2{font-size:clamp(1.8rem,4vw,2.4rem);font-weight:800;color:var(--c-dark);margin-bottom:10px}
.sec-head p{font-size:.95rem;color:var(--c-text2);max-width:420px;margin:0 auto}
.sec-head p strong{color:var(--c-red);font-weight:700}
mark{background:linear-gradient(180deg,transparent 55%,rgba(214,48,49,.15) 55%);padding:0 2px}

/* ---- NAVBAR ---- */
.navbar{position:fixed;top:0;left:0;width:100%;z-index:1000;padding:14px 0;transition:all .35s var(--ease)}
.navbar.scrolled{background:rgba(255,255,255,.97);backdrop-filter:blur(12px);padding:6px 0;box-shadow:0 1px 12px rgba(0,0,0,.05)}
.nav-container{max-width:1140px;margin:0 auto;padding:0 28px;display:flex;align-items:center;gap:12px}
.nav-logo{margin-right:auto}
.nav-logo img{height:36px;transition:.3s}
/* Logo: on dark hero, brighten for visibility */
.navbar:not(.scrolled) .nav-logo img{filter:brightness(0) invert(1)}
.nav-menu{display:flex;gap:2px;list-style:none}
.nav-link{padding:7px 13px;font-size:.82rem;font-weight:500;border-radius:8px;transition:.25s;color:var(--c-dark3)}
.navbar:not(.scrolled) .nav-link{color:rgba(255,255,255,.8)}
.navbar:not(.scrolled) .nav-link:hover{color:#fff;background:rgba(255,255,255,.12)}
.navbar.scrolled .nav-link:hover,.navbar.scrolled .nav-link.active{color:var(--c-red);background:rgba(214,48,49,.06)}
.nav-cta{display:flex;align-items:center;gap:6px;padding:7px 16px;background:var(--c-red);color:#fff;font-size:.78rem;font-weight:600;border-radius:8px;transition:.3s;white-space:nowrap}
.nav-cta svg{width:14px;height:14px}
.nav-cta:hover{background:var(--c-red-d);transform:translateY(-1px)}
.navbar:not(.scrolled) .nav-cta{background:rgba(255,255,255,.15);backdrop-filter:blur(4px)}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:4px;z-index:1001}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--c-dark);border-radius:2px;transition:.3s}
.navbar:not(.scrolled) .nav-toggle span{background:#fff}

/* ---- HERO ---- */
.hero{position:relative;min-height:100vh;display:flex;flex-direction:column;overflow:hidden;background:var(--c-dark)}
.hero-bg{position:absolute;inset:0}
/* scale up & shift to crop bottom-right Veo watermark */
.hero-bg video{width:100%;height:100%;object-fit:cover;opacity:.45;transform:scale(1.15);transform-origin:top left}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.45) 0%,rgba(0,0,0,.25) 50%,rgba(0,0,0,.65) 100%)}
.hero-particles{position:absolute;inset:0;pointer-events:none;z-index:1}
.particle{position:absolute;border-radius:50%;background:rgba(255,255,255,.2);pointer-events:none;animation:pFloat linear infinite}
@keyframes pFloat{0%{transform:translateY(0);opacity:0}10%{opacity:.7}90%{opacity:.7}100%{transform:translateY(-100vh);opacity:0}}

.hero-body{position:relative;z-index:2;flex:1;display:flex;align-items:center;padding:120px 0 100px}
.hero-text{max-width:680px}

.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 18px;border:1px solid rgba(255,255,255,.2);border-radius:50px;background:rgba(255,255,255,.07);backdrop-filter:blur(6px);color:rgba(255,255,255,.85);font-size:.78rem;font-weight:500;letter-spacing:.5px;margin-bottom:28px}
.dot-pulse{width:7px;height:7px;background:var(--c-red);border-radius:50%;animation:pulse 2s ease infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(214,48,49,.5)}50%{box-shadow:0 0 0 7px rgba(214,48,49,0)}}

.hero-title{font-size:clamp(2rem,5.5vw,3.6rem);font-weight:900;line-height:1.2;color:#fff;margin-bottom:22px}
.hero-title .accent{color:var(--c-red-l)}
.hero-sub{font-size:clamp(.88rem,1.5vw,1.05rem);color:rgba(255,255,255,.6);line-height:1.8;margin-bottom:36px;max-width:540px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}

.btn-primary{display:inline-flex;align-items:center;gap:8px;padding:13px 32px;background:var(--c-red);color:#fff;font-size:.88rem;font-weight:600;border-radius:10px;border:none;cursor:pointer;transition:all .35s var(--ease);font-family:var(--ff)}
.btn-primary:hover{background:var(--c-red-d);transform:translateY(-2px);box-shadow:0 6px 20px rgba(214,48,49,.35)}
.btn-lg{padding:16px 40px;font-size:.95rem}
.btn-ghost{display:inline-flex;align-items:center;gap:8px;padding:13px 28px;background:rgba(255,255,255,.08);color:#fff;font-size:.88rem;font-weight:500;border-radius:10px;border:1px solid rgba(255,255,255,.2);transition:all .35s var(--ease)}
.btn-ghost:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}

.hero-bottom{position:relative;z-index:2}
.hero-stats-bar{display:flex;justify-content:center;padding:28px 20px;background:rgba(255,255,255,.06);backdrop-filter:blur(16px);border-top:1px solid rgba(255,255,255,.1);border-bottom:1px solid rgba(255,255,255,.05);gap:0}
.hs-item{text-align:center;padding:8px 40px}
.hs-item strong{font-family:var(--ff-en);font-size:2rem;font-weight:900;color:#fff;display:block;line-height:1.1;margin-bottom:4px}
.hs-item span{font-size:.8rem;color:rgba(255,255,255,.55);letter-spacing:1px;font-weight:500}
.hs-divider{width:1px;background:rgba(255,255,255,.15);align-self:stretch;margin:4px 0}

/* Hero animations */
.anim-fade{opacity:0;transform:translateY(18px);animation:aFade .7s var(--ease) forwards;animation-delay:var(--d,.3s)}
.anim-word{display:inline-block;opacity:0;transform:translateY(30px);animation:aWord .6s var(--ease) forwards;animation-delay:var(--d,.5s)}
@keyframes aFade{to{opacity:1;transform:translateY(0)}}
@keyframes aWord{to{opacity:1;transform:translateY(0)}}

/* ---- ABOUT ---- */
.sec-about{background:var(--c-bg)}
.about-layout{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}
.about-images{position:relative}
.about-img-big{border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow-lg)}
.about-img-big img{width:100%;height:400px;object-fit:cover;transition:transform .7s var(--ease)}
.about-img-big:hover img{transform:scale(1.04)}
.about-img-sm{position:absolute;bottom:-32px;right:-24px;width:180px;border-radius:12px;overflow:hidden;border:5px solid var(--c-bg);box-shadow:var(--shadow-lg);animation:bobble 5s ease-in-out infinite}
.about-img-sm img{width:100%;height:130px;object-fit:cover}
@keyframes bobble{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}

.about-content h2{font-size:clamp(1.5rem,3vw,2rem);font-weight:400;line-height:1.5;margin-bottom:20px;color:var(--c-dark)}
.about-content h2 strong{font-weight:800;color:var(--c-red)}
.about-content p{font-size:.92rem;color:var(--c-text2);margin-bottom:14px}
.about-content p strong{color:var(--c-dark)}

.about-nums{display:flex;gap:16px;margin-top:32px}
.num-box{background:var(--c-bg2);border-radius:12px;padding:20px;text-align:center;flex:1;transition:.35s var(--ease)}
.num-box:hover{background:var(--c-red);transform:translateY(-4px);box-shadow:0 6px 20px rgba(214,48,49,.25)}
.num-box:hover .counter,.num-box:hover small,.num-box:hover em{color:#fff}
.counter{font-family:var(--ff-en);font-size:2rem;font-weight:800;color:var(--c-red);transition:color .3s}
.num-box small{font-size:.85rem;color:var(--c-red);font-weight:600;transition:color .3s}
.num-box em{display:block;font-style:normal;font-size:.75rem;color:var(--c-text3);margin-top:2px;transition:color .3s}

/* ---- BUSINESS ---- */
.sec-business{background:var(--c-bg2)}

/* Featured hero card (horizontal) */
.biz-hero{display:grid;grid-template-columns:1fr 1fr;border-radius:var(--r);overflow:hidden;background:var(--c-bg);box-shadow:var(--shadow-lg);border:2px solid var(--c-red);margin-bottom:24px;transition:transform .45s var(--ease),box-shadow .45s}
.biz-hero:hover{transform:translateY(-4px);box-shadow:0 12px 48px rgba(214,48,49,.15)}
.biz-hero-img{position:relative;height:100%;min-height:280px;overflow:hidden}
.biz-hero-img img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease)}
.biz-hero:hover .biz-hero-img img{transform:scale(1.06)}
.biz-hero-img .biz-badge{position:absolute;top:14px;left:14px}
.biz-hero-body{padding:40px 36px;display:flex;flex-direction:column;justify-content:center}
.biz-hero-body h3{font-size:1.5rem;font-weight:800;margin:6px 0 14px;color:var(--c-dark)}
.biz-hero-body p{font-size:.9rem;color:var(--c-text2);line-height:1.75;margin-bottom:20px}
.biz-hero-link{display:inline-flex;align-items:center;gap:6px;font-size:.85rem;font-weight:600;color:var(--c-red);transition:gap .3s}
.biz-hero-link:hover{gap:12px}

/* 4-card grid */
.biz-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.biz-card{border-radius:var(--r);overflow:hidden;background:var(--c-bg);box-shadow:var(--shadow);transition:transform .45s var(--ease),box-shadow .45s}
.biz-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.biz-thumb{position:relative;height:170px;overflow:hidden}
.biz-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.biz-card:hover .biz-thumb img{transform:scale(1.1)}
.biz-badge{position:absolute;top:10px;left:10px;background:var(--c-red);color:#fff;font-size:.65rem;font-weight:700;padding:3px 10px;border-radius:6px;letter-spacing:.5px}
.biz-body{padding:22px 20px}
.biz-num{font-family:var(--ff-en);font-size:.72rem;font-weight:700;color:var(--c-text3);letter-spacing:1px}
.biz-body h3{font-size:1.05rem;font-weight:700;margin:4px 0 8px;color:var(--c-dark)}
.biz-body p{font-size:.82rem;color:var(--c-text2);line-height:1.65}
.biz-card.reveal{transition-delay:calc(var(--d) * .08s)}

/* ---- GALLERY ---- */
.sec-products{background:var(--c-bg)}
.gallery{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-flow:dense;gap:12px}
.g-item{position:relative;border-radius:var(--r);overflow:hidden;cursor:pointer;aspect-ratio:4/3}
.g-item.g-wide{grid-column:span 2}
.g-item img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease),filter .3s}
.g-item:hover img{transform:scale(1.08);filter:brightness(.65)}
.g-over{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;padding:20px;opacity:0;transform:translateY(8px);transition:.35s var(--ease)}
.g-item:hover .g-over{opacity:1;transform:translateY(0)}
.g-tag{display:inline-block;width:fit-content;padding:2px 10px;background:var(--c-red);color:#fff;font-size:.62rem;font-weight:700;border-radius:4px;margin-bottom:6px}
.g-over h4{color:#fff;font-size:.95rem;font-weight:600}

/* ---- LIGHTBOX ---- */
.lightbox{display:none;position:fixed;inset:0;z-index:2000;align-items:center;justify-content:center}
.lightbox.open{display:flex}
.lb-bg{position:absolute;inset:0;background:rgba(0,0,0,.88);backdrop-filter:blur(10px)}
.lb-wrap{position:relative;z-index:1;max-width:88vw;max-height:84vh;animation:lbIn .35s var(--ease)}
.lb-wrap img{max-width:88vw;max-height:78vh;object-fit:contain;border-radius:10px}
.lb-cap{color:rgba(255,255,255,.65);text-align:center;margin-top:12px;font-size:.88rem}
.lb-close{position:absolute;top:16px;right:20px;z-index:2;background:rgba(255,255,255,.1);border:none;color:#fff;font-size:1.8rem;width:40px;height:40px;border-radius:50%;cursor:pointer;transition:.3s}
.lb-close:hover{background:var(--c-red);transform:rotate(90deg)}
.lb-arr{position:absolute;top:50%;transform:translateY(-50%);z-index:2;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);color:#fff;font-size:1.2rem;width:44px;height:44px;border-radius:50%;cursor:pointer;transition:.3s;display:flex;align-items:center;justify-content:center}
.lb-arr:hover{background:var(--c-red);border-color:var(--c-red)}
.lb-prev{left:16px}.lb-next{right:16px}
.lb-count{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);color:rgba(255,255,255,.35);font-family:var(--ff-en);font-size:.8rem;z-index:2}
@keyframes lbIn{from{opacity:0;transform:scale(.92)}to{opacity:1;transform:scale(1)}}

/* ===== PATENTS TIMELINE ===== */
.sec-patents{background:var(--c-bg2);overflow:hidden}

.tl{position:relative;max-width:960px;margin:0 auto;padding:20px 0 40px}

/* center line */
.tl-line{position:absolute;left:50%;top:0;bottom:0;width:2px;background:var(--c-border);transform:translateX(-50%)}
.tl-line::after{content:'';position:absolute;top:0;left:0;width:100%;height:0;background:linear-gradient(180deg,var(--c-red),var(--c-red-l));transition:height 1.8s cubic-bezier(.22,1,.36,1)}
.tl.tl-animate .tl-line::after{height:100%}

/* item row */
.tl-item{position:relative;width:50%;padding:0 48px 48px;opacity:0}
.tl-item.tl-right{margin-left:50%}
.tl-item.tl-left{margin-left:0}

/* slide-in animations */
.tl-item.tl-right{transform:translateX(60px)}
.tl-item.tl-left{transform:translateX(-60px)}
.tl-item.tl-vis{opacity:1;transform:translateX(0);transition:opacity .7s cubic-bezier(.25,.46,.45,.94),transform .7s cubic-bezier(.25,.46,.45,.94)}

/* center dot */
.tl-dot{position:absolute;top:12px;width:48px;height:48px;border-radius:50%;background:var(--c-bg);border:3px solid var(--c-border);display:flex;align-items:center;justify-content:center;z-index:2;transition:border-color .4s,background .4s,transform .4s,box-shadow .4s}
.tl-dot span{font-family:var(--ff-en);font-size:.7rem;font-weight:800;color:var(--c-text3);transition:color .4s}
.tl-item.tl-right .tl-dot{left:-24px}
.tl-item.tl-left .tl-dot{right:-24px}

/* dot visible state */
.tl-item.tl-vis .tl-dot{border-color:var(--c-red);animation:dotPop .5s cubic-bezier(.175,.885,.32,1.275) forwards}
.tl-item.tl-vis .tl-dot span{color:var(--c-red)}
@keyframes dotPop{0%{transform:scale(0)}60%{transform:scale(1.15)}100%{transform:scale(1)}}

/* dot hover */
.tl-item:hover .tl-dot{background:var(--c-red);border-color:var(--c-red);transform:scale(1.1);box-shadow:0 0 0 8px rgba(214,48,49,.15)}
.tl-item:hover .tl-dot span{color:#fff}

/* smaller dot when no year label */
.tl-dot:empty{width:16px;height:16px}
.tl-item.tl-right .tl-dot:empty{left:-8px}
.tl-item.tl-left .tl-dot:empty{right:-8px}
.tl-item:hover .tl-dot:empty{background:var(--c-red);border-color:var(--c-red);transform:scale(1.4);box-shadow:0 0 0 6px rgba(214,48,49,.15)}

/* card — horizontal layout with accent bar */
.tl-card{display:flex;overflow:hidden;background:var(--c-bg);border-radius:var(--r);box-shadow:var(--shadow);border:1px solid var(--c-border);transition:transform .4s var(--ease),box-shadow .4s,border-color .4s}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--c-red)}

/* side accent bar — faces the center line */
.tl-item.tl-right .tl-card{border-left:3px solid var(--c-border)}
.tl-item.tl-left .tl-card{border-right:3px solid var(--c-border);flex-direction:row-reverse}
.tl-item.tl-right:hover .tl-card{border-left-color:var(--c-red)}
.tl-item.tl-left:hover .tl-card{border-right-color:var(--c-red)}

/* thumbnail */
.tl-thumb{width:90px;flex-shrink:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;background:var(--c-bg2);color:var(--c-text3);padding:14px 12px;transition:background .4s,color .4s;position:relative;overflow:hidden}
.tl-thumb .tl-icon{width:32px;height:32px;transition:transform .4s,color .4s}
.tl-thumb span{font-size:.6rem;font-weight:700;letter-spacing:.5px;opacity:.6;transition:opacity .4s,color .4s;white-space:nowrap}
.tl-thumb img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;z-index:1}
.tl-card:hover .tl-thumb{background:rgba(214,48,49,.06);color:var(--c-red)}
.tl-card:hover .tl-thumb .tl-icon{transform:scale(1.1)}
.tl-card:hover .tl-thumb span{opacity:1;color:var(--c-red)}

/* card body */
.tl-body{padding:18px 22px;display:flex;flex-direction:column;justify-content:center;flex:1}
.tl-body h4{font-size:.95rem;font-weight:700;color:var(--c-dark);margin-bottom:8px;line-height:1.4}

/* meta info */
.tl-meta{display:flex;flex-direction:column;gap:2px}
.tl-meta span{font-size:.76rem;color:var(--c-text2);line-height:1.6}

/* ---- VIDEO SHOWCASE ---- */
.sec-video{background:var(--c-dark);color:#fff;overflow:hidden}
.video-showcase{display:grid;grid-template-columns:1fr 1.2fr;gap:56px;align-items:center}
.vs-content .tag{color:var(--c-red-l)}
.vs-content h2{font-size:clamp(1.5rem,3.5vw,2.2rem);font-weight:900;line-height:1.35;margin-bottom:16px}
.vs-content h2 strong{color:var(--c-red-l)}
.vs-content>p{font-size:.92rem;color:rgba(255,255,255,.6);line-height:1.8;margin-bottom:24px}
.vs-features{list-style:none;display:flex;flex-direction:column;gap:12px}
.vs-features li{display:flex;align-items:flex-start;gap:10px;font-size:.88rem;color:rgba(255,255,255,.75);line-height:1.6}
.vs-features li::before{content:'';display:block;width:20px;height:20px;flex-shrink:0;margin-top:2px;background:var(--c-red);border-radius:50%;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E");background-size:12px;background-position:center;background-repeat:no-repeat}
.vs-player{position:relative;border-radius:var(--r);overflow:hidden;box-shadow:0 8px 48px rgba(0,0,0,.4);border:1px solid rgba(255,255,255,.08)}
.vs-player video{width:100%;display:block;aspect-ratio:16/9;object-fit:cover;background:#000}

/* ---- CTA ---- */
.sec-cta{position:relative;padding:120px 0;overflow:hidden;text-align:center;color:#fff}
.cta-bg-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.cta-dim{position:absolute;inset:0;background:linear-gradient(135deg,rgba(17,17,19,.88),rgba(214,48,49,.5))}
.cta-inner{position:relative;z-index:1}
.cta-inner h2{font-size:clamp(1.6rem,4vw,2.6rem);font-weight:900;line-height:1.35;margin-bottom:14px}
.cta-inner p{font-size:1rem;opacity:.7;margin-bottom:32px}

/* ---- CONTACT ---- */
.sec-contact{background:var(--c-bg)}
.contact-wrap{display:grid;grid-template-columns:1fr 1.5fr;gap:28px;align-items:stretch}
.contact-info{background:var(--c-bg2);border-radius:var(--r);padding:36px 28px;display:flex;flex-direction:column;justify-content:center;gap:24px}
.ci{display:flex;gap:14px;align-items:flex-start}
.ci-icon{width:40px;height:40px;flex-shrink:0;background:var(--c-bg);border-radius:10px;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 6px rgba(0,0,0,.04);transition:.3s}
.ci-icon svg{width:18px;height:18px;color:var(--c-red)}
.ci:hover .ci-icon{background:var(--c-red)}
.ci:hover .ci-icon svg{color:#fff}
.ci strong{font-size:.82rem;display:block;margin-bottom:2px;color:var(--c-dark)}
.ci p{font-size:.88rem;color:var(--c-text2);line-height:1.5}
.ci a{color:var(--c-red);font-weight:600}
.contact-map{border-radius:var(--r);overflow:hidden;min-height:360px;box-shadow:var(--shadow)}

/* ---- FOOTER ---- */
.footer{background:var(--c-dark);color:rgba(255,255,255,.55);padding:48px 0 0}
.ft-top{display:grid;grid-template-columns:1fr auto 1fr;gap:28px;padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.08);align-items:center}
.ft-logo{height:30px;filter:brightness(0) invert(1);margin-bottom:4px}
.ft-brand span{font-size:.78rem}
.ft-nav{display:flex;gap:20px}
.ft-nav a{font-size:.8rem;transition:color .3s}
.ft-nav a:hover{color:var(--c-red-l)}
.ft-addr{text-align:right;font-size:.8rem}
.ft-addr a{color:var(--c-red-l)}
.ft-bottom{padding:18px 0;text-align:center}
.ft-bottom p{font-size:.72rem;opacity:.35}

/* ---- BACK TO TOP ---- */
.btt{position:fixed;bottom:28px;right:28px;width:46px;height:46px;background:var(--c-red);color:#fff;border:none;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 16px rgba(214,48,49,.35);opacity:0;visibility:hidden;transform:translateY(16px);transition:.4s var(--ease);z-index:900}
.btt.show{opacity:1;visibility:visible;transform:translateY(0)}
.btt:hover{background:var(--c-red-d);transform:translateY(-3px)}
.btt svg{width:18px;height:18px}

/* ---- REVEALS ---- */
.reveal,.reveal-left,.reveal-right{opacity:0;transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal{transform:translateY(40px)}
.reveal-left{transform:translateX(-40px)}
.reveal-right{transform:translateX(40px)}
.reveal.vis,.reveal-left.vis,.reveal-right.vis{opacity:1;transform:none}

/* ===== RESPONSIVE ===== */
@media(max-width:1024px){
  .about-layout{gap:48px}
  .biz-grid{grid-template-columns:repeat(2,1fr)}
  .gallery{grid-template-columns:repeat(2,1fr)}
  .g-item.g-wide{grid-column:span 1}
}
@media(max-width:860px){
  .tl-line{left:24px}
  .tl-item,.tl-item.tl-right,.tl-item.tl-left{width:100%;margin-left:0;padding:0 0 28px 64px}
  .tl-item.tl-right,.tl-item.tl-left{transform:translateX(40px)}
  .tl-item.tl-right .tl-dot,.tl-item.tl-left .tl-dot{left:-4px;right:auto}
  .tl-item.tl-right .tl-dot:empty,.tl-item.tl-left .tl-dot:empty{left:16px;right:auto}
  .tl-item.tl-right .tl-card,.tl-item.tl-left .tl-card{flex-direction:row;border-left:3px solid var(--c-border);border-right:1px solid var(--c-border)}
  .tl-item.tl-right:hover .tl-card,.tl-item.tl-left:hover .tl-card{border-left-color:var(--c-red)}
  .tl-thumb{width:72px}
}
@media(max-width:768px){
  .section{padding:80px 0}
  .nav-toggle{display:flex}
  .nav-menu{position:fixed;top:0;right:-100%;width:260px;height:100vh;background:var(--c-bg);flex-direction:column;padding:72px 24px 24px;gap:2px;box-shadow:-4px 0 16px rgba(0,0,0,.06);transition:right .35s ease;z-index:1000}
  .nav-menu.open{right:0}
  .nav-menu .nav-link{color:var(--c-dark)!important;padding:10px 14px;font-size:.9rem}
  .nav-cta{display:none}
  .nav-toggle.open span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
  .nav-toggle.open span:nth-child(2){opacity:0}
  .nav-toggle.open span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}
  .hero-title{font-size:clamp(1.8rem,7vw,2.6rem)}
  .hero-stats-bar{flex-wrap:wrap;gap:0;padding:16px 12px}
  .hs-divider{display:none}
  .hs-item{padding:10px 20px;width:50%}
  .hs-item strong{font-size:1.5rem}
  .hs-item span{font-size:.72rem}
  .about-layout{grid-template-columns:1fr;gap:28px}
  .about-img-big img{height:260px}
  .about-img-sm{width:140px;right:-10px;bottom:-20px}
  .about-img-sm img{height:100px}
  .biz-hero{grid-template-columns:1fr}
  .biz-hero-img{min-height:200px}
  .biz-hero-body{padding:28px 24px}
  .biz-grid{grid-template-columns:1fr 1fr;gap:12px}
  .video-showcase{grid-template-columns:1fr;gap:32px}
  .contact-wrap{grid-template-columns:1fr}
  .ft-top{grid-template-columns:1fr;text-align:center;gap:16px}
  .ft-nav{justify-content:center;flex-wrap:wrap;gap:12px}
  .ft-addr{text-align:center}
}
@media(max-width:480px){
  .biz-grid{grid-template-columns:1fr 1fr}
  .gallery{grid-template-columns:1fr}
  .about-nums{flex-direction:row;gap:10px}
  .num-box{padding:16px 10px}
  .counter{font-size:1.5rem}
  .tl-card{flex-direction:column!important}
  .tl-thumb{width:100%!important;height:80px}
  .tl-meta{flex-direction:column;gap:2px}
  .tl-meta span:not(:last-child)::after{display:none}
}