:root{
    --forest-950:#12231C;
    --forest-800:#1E3A2F;
    --forest-700:#2A4B3C;
    --paper:#F0F1EB;
    --paper-dim:#E6E7DF;
    --amber:#D97D2C;
    --amber-soft:#F0DFC8;
    --blue:#3E6E8E;
    --ink:#16201B;
    --ink-soft:#57614F;
    --line:#D4D5CC;
    --radius:2px;
    --card-bg:#F7F7F2;
    --card-info:#E6E7DF;
    --card-border:#D4D5CC;
    --card-gap:24px;
    --card-radius:2px;
    --card-padding:30px;
    --sans:'PretendardVariable', 'Pretendard', -apple-system, sans-serif;
    --mono:var(--sans);
  }
  *{box-sizing:border-box; margin:0; padding:0;}
  html{scroll-behavior:smooth;}
  body{
    font-family:var(--sans);
    color:var(--ink);
    background:var(--paper);
    line-height:1.6;
    overflow-x:hidden;
  }
  a{color:inherit; text-decoration:none;}
  img{max-width:100%; display:block;}
  .wrap{max-width:1180px; margin:0 auto; padding:0 32px;}
  .eyebrow{
    font-family:var(--mono);
    font-size:12px;
    letter-spacing:0.04em;
    text-transform:uppercase;
    color:var(--amber);
    display:flex;
    align-items:center;
    gap:8px;
    margin-bottom:16px;
  }
  .eyebrow::before{content:''; width:20px; height:1px; background:var(--amber);}

  /* ===== Header ===== */
  header{
    position:fixed; top:0; left:0; right:0; z-index:100;
    background:rgba(240,241,235,0.88);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
    transition:background .3s;
  }
  header .wrap{
    height:76px; display:flex; align-items:center; justify-content:space-between;
  }
  .logo{
    display:flex; align-items:center; width:116px; height:48px; flex:0 0 116px;
  }
  .logo img{width:100%; height:100%; object-fit:contain; object-position:left center; display:block;}
  nav{display:flex; align-items:center; gap:36px;}
  nav a{
    font-size:14.5px; color:var(--ink-soft); font-weight:500;
    position:relative; padding:4px 0;
  }
  nav a:hover{color:var(--forest-950);}
  .nav-cta{
    background:var(--forest-950); color:var(--paper) !important;
    padding:10px 20px; font-size:13.5px; font-weight:600;
    border-radius:var(--radius);
  }
  .nav-cta:hover{background:var(--amber);}
  .nav-toggle{display:none; background:none; border:none; cursor:pointer; padding:6px;}
  .nav-toggle span{display:block; width:22px; height:2px; background:var(--ink); margin:5px 0;}

  /* ===== Hero ===== */
  .hero{
    position:relative;
    min-height:100vh;
    background:var(--bright-green);
    color:var(--pine);
    display:flex; align-items:center;
    padding-top:76px;
    overflow:hidden;
  }
  .hero-bg-svg{
    position:absolute; inset:0; width:100%; height:100%;
    display:block; z-index:1;
  }
  .hero-bg-svg-mobile{display:none;}
  @media (max-width: 760px){
    .hero-bg-svg{display:none;}
    .hero-bg-svg-mobile{
      display:block; position:absolute; inset:0; width:100%; height:100%; z-index:1;
    }
  }
  .hero::after{
    content:'';
    position:absolute; inset:0;
    background:linear-gradient(180deg, rgba(234,240,228,0) 0%, rgba(234,240,228,0.1) 75%, var(--bright-green) 100%);
  }
  .hero-content{position:relative; z-index:2; width:100%; padding-top:80px; padding-bottom:60px;}
  @media (max-width: 760px){
    .hero-content{padding-left:16px; padding-right:16px;}
  }
  .hero-eyebrow{
    font-family:var(--mono); font-size:12.5px; letter-spacing:0.04em;
    text-transform:uppercase; color:#B8722C;
    display:flex; align-items:center; gap:10px; margin-bottom:28px;
  }
  .hero-eyebrow::before{content:''; width:24px; height:1px; background:#B8722C;}
  .hero h1{
    font-size:clamp(38px, 6vw, 68px);
    font-weight:700;
    letter-spacing:-0.02em;
    line-height:1.18;
    max-width:820px;
    margin-bottom:26px;
    color:var(--pine);
  }
  .hero h1 em{
    font-style:normal; color:#B8722C;
  }
  .hero p.lead{
    font-size:18px; color:#4F6349; max-width:540px; margin-bottom:44px; font-weight:400;
  }
  .hero-actions{display:flex; gap:16px; flex-wrap:wrap; margin-bottom:80px;}
  .btn{
    display:inline-flex; align-items:center; gap:10px;
    padding:15px 28px; font-size:15px; font-weight:600;
    border-radius:var(--radius); cursor:pointer; border:1px solid transparent;
    transition:all .2s;
  }
  .btn-primary{background:var(--amber); color:var(--forest-950);}
  .btn-primary:hover{background:#EA9445; transform:translateY(-1px);}
  .btn-ghost{border-color:rgba(62,107,82,0.35); color:var(--pine);}
  .btn-ghost:hover{border-color:var(--pine); background:rgba(62,107,82,0.06);}

  .telemetry-bar{
    display:grid;
    grid-template-columns:repeat(4, 1fr);
    border-top:1px solid rgba(62,107,82,0.2);
  }
  .telemetry-item{
    padding:22px 0 0;
    border-left:1px solid rgba(62,107,82,0.2);
    padding-left:22px;
  }
  .telemetry-item:first-child{border-left:none; padding-left:0;}
  .telemetry-label{
    font-family:var(--mono); font-size:11px; letter-spacing:0.03em; font-weight:600;
    color:#2F4A2A; text-transform:uppercase; margin-bottom:8px;
  }
  .telemetry-value{font-size:15.5px; font-weight:700; color:var(--pine);}

  /* ===== Section generic ===== */
  section{padding:120px 0;}
  .section-head{max-width:640px; margin-bottom:64px;}
  .section-head h2{
    font-size:clamp(28px, 3.6vw, 40px);
    font-weight:700; letter-spacing:-0.01em; line-height:1.28;
    color:var(--forest-950);
  }
  .section-head p{font-size:16.5px; color:var(--ink-soft); margin-top:16px; max-width:520px;}

  /* ===== About ===== */
  .about{background:var(--paper);}
  .about-grid{
    display:grid; grid-template-columns:1.1fr 0.9fr; gap:80px; align-items:start;
  }
  .about-copy p{font-size:16px; color:var(--ink-soft); margin-bottom:18px;}
  .about-copy p:last-child{margin-bottom:0;}
  .vision-box{
    background:var(--bright-green); color:var(--pine);
    padding:36px; border-radius:var(--radius);
    margin-top:32px;
  }
  .vision-box .eyebrow{color:#B8722C;}
  .vision-box h3{font-size:clamp(15px, 1.6vw, 20px); font-weight:600; line-height:1.5;}

  .timeline{border-left:1px solid var(--line); padding-left:28px;}
  .timeline-item{position:relative; padding-bottom:36px;}
  .timeline-item:last-child{padding-bottom:0;}
  .timeline-item::before{
    content:''; position:absolute; left:-33px; top:4px;
    width:9px; height:9px; background:var(--amber); border-radius:50%;
    box-shadow:0 0 0 4px var(--paper);
  }
  .timeline-year{font-family:var(--sans); font-size:13px; color:var(--amber); font-weight:700; margin-bottom:4px;}
  .timeline-title{font-size:15.5px; font-weight:600; margin-bottom:4px;}
  .timeline-desc{font-size:14.5px; color:var(--ink-soft);}

  /* ===== Services ===== */
  .services{background:var(--paper); color:var(--pine);}
  .services .section-head h2{color:var(--pine);}
  .services .section-head p{color:#5C7355;}
  .services-lead{white-space:nowrap;}
  @media (max-width: 760px){
    .services-lead{white-space:normal;}
  }
  .service-grid{
    display:grid; grid-template-columns:repeat(2, 1fr); gap:var(--card-gap);
  }
  .service-card{
    background:var(--card-bg); border:1px solid var(--card-border); border-radius:var(--card-radius);
    padding:var(--card-padding); display:flex; flex-direction:column;
  }
  .service-card:hover{background:var(--card-bg);}
  .service-num{font-family:var(--mono); font-size:12px; font-weight:700; color:var(--amber); display:block; line-height:1;}
  .service-icon{width:32px; height:32px; margin:18px 0;}
  .service-icon svg{width:100%; height:100%; stroke:var(--amber); fill:none; stroke-width:1.5;}
  .service-card h3{font-size:20px; font-weight:700; line-height:1.4; margin-bottom:10px; color:var(--pine);}
  .service-card p{font-size:14.5px; line-height:1.7; color:var(--ink-soft); margin-bottom:20px;}
  .service-tags{display:flex; flex-wrap:wrap; gap:8px;}
  .service-tags span{
    font-family:var(--mono); font-size:12px; font-weight:500; color:var(--pine);
    background:rgba(62,107,82,0.08);
    border:1px solid rgba(62,107,82,0.3); padding:5px 12px; border-radius:20px;
  }
  .service-list{display:flex; flex-direction:column; gap:9px; margin-top:auto; padding-top:18px; border-top:1px solid var(--card-border);}
  .service-list li{
    display:flex; align-items:flex-start; gap:9px; font-size:13.5px; color:var(--ink); line-height:1.55;
  }
  .service-list svg{width:15px; height:15px; stroke:var(--amber); fill:none; stroke-width:2.2; flex-shrink:0; margin-top:2px;}

  /* ===== Projects (Track Record) ===== */
  .projects{background:var(--paper);}
  .projects-grid{display:grid; grid-template-columns:1fr 1fr; gap:32px;}

  /* ===== Stats Strip ===== */
  .stats-strip{
    display:grid; grid-template-columns:repeat(4, 1fr);
    border:1px solid var(--line); border-radius:var(--radius);
    margin-bottom:56px; overflow:hidden;
  }
  .stat-item{padding:28px 26px; border-left:1px solid var(--line);}
  .stat-item:first-child{border-left:none;}
  .stat-value{
    font-family:var(--sans); font-size:32px; font-weight:800; color:var(--forest-950); line-height:1;
    font-variant-numeric:tabular-nums;
  }
  .stat-value .accent{color:var(--amber);}
  .stat-label{font-size:12px; color:var(--ink-soft); margin-top:10px; line-height:1.5;}

  @media (max-width: 860px){
    .stats-strip{grid-template-columns:1fr 1fr;}
    .stat-item:nth-child(3){border-left:none;}
    .stat-item:nth-child(2), .stat-item:nth-child(4){border-left:1px solid var(--line);}
    .stat-item:nth-child(3), .stat-item:nth-child(4){border-top:1px solid var(--line);}
  }
  @media (max-width: 480px){
    .stats-strip{grid-template-columns:1fr;}
    .stat-item{border-left:none !important; border-top:1px solid var(--line);}
    .stat-item:first-child{border-top:none;}
  }

  /* ===== Track Record (year accordion) ===== */
  .record-list{display:flex; flex-direction:column; border-top:1px solid var(--line);}
  .record-row{
    display:flex; align-items:center; gap:20px; padding:22px 4px;
    border-bottom:1px solid var(--line);
    cursor:pointer; background:none; border-left:none; border-right:none; border-top:none;
    width:100%; text-align:left; font-family:var(--sans); -webkit-tap-highlight-color:transparent;
  }
  .record-row:hover .record-text{color:var(--forest-950);}
  .record-year{
    font-family:var(--mono); font-size:16px; font-weight:700; color:var(--amber);
    width:60px; flex-shrink:0;
  }
  .record-text{font-size:15.5px; color:var(--ink); flex:1;}
  .record-count{
    font-family:var(--sans); font-size:12px; color:var(--ink-soft); flex-shrink:0; white-space:nowrap;
  }
  .record-status{
    font-family:var(--sans); font-size:11.5px; font-weight:600;
    padding:4px 11px; border-radius:20px; white-space:nowrap; flex-shrink:0;
  }
  .record-status.ongoing{background:var(--amber-soft); color:var(--forest-950);}
  .record-status.completed{background:transparent; color:var(--ink-soft); border:1px solid var(--line);}
  .record-chevron{
    width:14px; height:14px; flex-shrink:0; stroke:var(--ink-soft); fill:none; stroke-width:2;
    transition:transform .25s ease;
  }
  .record-item.open .record-chevron{transform:rotate(180deg);}

  .record-panel{max-height:0; overflow:hidden; transition:max-height .4s ease;}
  .record-item.open .record-panel{max-height:3000px;}
  .record-panel-inner{padding:4px 4px 30px 84px;}
  .record-panel-inner ul{list-style:none; display:flex; flex-direction:column; gap:9px;}
  .record-panel-inner li{
    font-size:13.5px; color:var(--ink-soft); padding-left:14px; position:relative; line-height:1.5;
  }
  .record-panel-inner li::before{content:'—'; position:absolute; left:0; color:var(--line);}

  @media (max-width: 560px){
    .record-row{flex-wrap:wrap; gap:8px 20px;}
    .record-text{flex-basis:100%; order:3;}
    .record-panel-inner{padding-left:24px;}
  }
  .project-card{
    background:var(--paper); border:1px solid var(--line); border-radius:var(--radius);
    overflow:hidden; display:flex; flex-direction:column;
  }
  .project-photo{
    aspect-ratio:16/10; width:100%; position:relative; background:var(--forest-800);
    display:flex; align-items:center; justify-content:center; overflow:hidden;
  }
  .project-photo img{width:100%; height:100%; object-fit:cover;}
  .project-photo .photo-placeholder{color:#8FA091; text-align:center; padding:20px;}
  .project-photo .photo-placeholder svg{width:36px; height:36px; stroke:#5C6E5E; fill:none; stroke-width:1.3; margin:0 auto 10px;}
  .project-photo .photo-placeholder span{font-family:var(--mono); font-size:10.5px; letter-spacing:0.04em; display:block; line-height:1.5;}
  .project-status{
    position:absolute; top:14px; left:14px; font-family:var(--mono); font-size:11px; letter-spacing:0.05em;
    padding:5px 12px; border-radius:20px; font-weight:600;
  }
  .project-status.ongoing{background:var(--amber); color:var(--forest-950);}
  .project-status.completed{background:var(--paper); color:var(--forest-950);}
  .project-body{padding:28px 28px 30px;}
  .project-client{font-family:var(--mono); font-size:11.5px; color:var(--blue); margin-bottom:6px;}
  .project-body h3{font-size:20px; font-weight:700; margin-bottom:14px; line-height:1.4;}
  .project-desc{font-size:14.5px; color:var(--ink-soft); margin-bottom:22px;}
  .project-meta{display:grid; grid-template-columns:repeat(3, 1fr); gap:14px; border-top:1px solid var(--line); padding-top:18px;}
  .project-meta .m-item .m-label{font-family:var(--mono); font-size:10px; letter-spacing:0.06em; text-transform:uppercase; color:var(--ink-soft); margin-bottom:4px;}
  .project-meta .m-item .m-value{font-size:13.5px; font-weight:600; color:var(--forest-950);}

  @media (max-width: 860px){
    .projects-grid{grid-template-columns:1fr;}
    .project-meta{grid-template-columns:1fr 1fr;}
  }

  /* ===== Capabilities (SW/Data) ===== */
  .capabilities{background:var(--paper-dim);}
  .capability-grid{display:grid; grid-template-columns:repeat(3, 1fr); gap:var(--card-gap);}
  .capability-card{background:var(--card-info);border:1px solid var(--card-border);border-radius:var(--card-radius);display:flex;flex-direction:column;overflow:hidden;}
  .capability-shot{
    aspect-ratio:16/10; width:100%; position:relative; background:var(--forest-950);
    display:flex; align-items:center; justify-content:center; overflow:hidden;
  }
  .capability-shot img{width:100%; height:100%; object-fit:cover;}
  .capability-shot .photo-placeholder{color:#6E7C6F; text-align:center; padding:14px;}
  .capability-shot .photo-placeholder svg{width:28px; height:28px; stroke:#4A564E; fill:none; stroke-width:1.3; margin:0 auto 8px;}
  .capability-shot .photo-placeholder span{font-family:var(--mono); font-size:9.5px; letter-spacing:0.04em; display:block; line-height:1.4;}
  .capability-body{padding:var(--card-padding);display:flex;flex-direction:column;flex:1;background:var(--card-info);}
  .capability-top{display:flex; align-items:flex-start; justify-content:space-between; margin-bottom:20px;}
  .capability-icon{width:32px; height:32px;}
  .capability-icon svg{width:100%; height:100%; stroke:var(--blue); fill:none; stroke-width:1.4;}
  .capability-badge{
    font-family:var(--sans); font-size:11px; font-weight:600; letter-spacing:0;
    color:var(--forest-950); background:var(--amber-soft); padding:4px 10px; border-radius:20px; white-space:nowrap;
  }
  .capability-card h3,.capability-card h4{font-size:19px;font-weight:700;line-height:1.4;color:var(--forest-950);margin-bottom:10px;}
  .capability-card p{font-size:14.5px;line-height:1.7;color:var(--ink-soft);margin-bottom:20px;}
  .capability-demo{
    margin-top:auto; display:inline-flex; align-items:center; gap:6px;
    font-family:var(--sans); font-size:13.5px; font-weight:600; color:var(--blue);
    padding-top:4px;
  }
  .capability-demo svg{width:14px; height:14px; stroke:var(--blue); fill:none; stroke-width:2;}
  .capability-demo:hover{color:var(--forest-950);}
  .capability-demo.soon{color:var(--ink-soft); cursor:default; pointer-events:none;}
  .capability-demo.soon svg{stroke:var(--ink-soft);}

  @media (max-width: 860px){
    .capability-grid{grid-template-columns:1fr;}
  }

  /* ===== Equipment (Fleet) ===== */
  .fleet{background:var(--paper);}
  .fleet-grid{display:grid; grid-template-columns:repeat(2, 1fr); gap:40px;}
  .drone-card{
    background:var(--paper); border:1px solid var(--line); border-radius:var(--radius);
    overflow:hidden;
  }
  .drone-photo{
    aspect-ratio:16/10; width:100%; position:relative;
    background:var(--forest-950);
    display:flex; align-items:center; justify-content:center;
    overflow:hidden;
  }
  .drone-photo img{width:100%; height:100%; object-fit:cover;}
  .drone-photo .photo-placeholder{
    color:#6E7C6F; text-align:center; padding:20px;
  }
  .drone-photo .photo-placeholder svg{width:40px; height:40px; stroke:#4A564E; fill:none; stroke-width:1.3; margin:0 auto 12px;}
  .drone-photo .photo-placeholder span{
    font-family:var(--mono); font-size:11px; letter-spacing:0.06em; display:block;
  }
  .drone-tag{
    position:absolute; top:14px; left:14px;
    font-family:var(--mono); font-size:11px; letter-spacing:0.06em;
    color:var(--forest-950); background:var(--amber);
    padding:5px 10px; border-radius:20px;
  }
  .drone-body{padding:28px 28px 32px;}
  .drone-body h3{font-size:20px; font-weight:700; margin-bottom:4px;}
  .drone-model{font-family:var(--mono); font-size:12px; color:var(--blue); margin-bottom:14px;}
  .drone-desc{font-size:14.5px; color:var(--ink-soft); margin-bottom:22px;}
  .spec-grid{
    display:grid; grid-template-columns:1fr 1fr; gap:14px 20px;
    border-top:1px solid var(--line); padding-top:20px;
  }
  .spec-item .spec-label{
    font-family:var(--mono); font-size:10.5px; letter-spacing:0.08em; text-transform:uppercase;
    color:var(--ink-soft); margin-bottom:4px;
  }
  .spec-item .spec-value{font-size:14.5px; font-weight:600; color:var(--forest-950);}
  .fleet-note{font-size:12.5px; color:var(--ink-soft); margin-top:24px;}

  /* extra semantic accents for equipment badges */
  :root{
    --violet:#66235F; --violet-soft:#EEE1EC;
    --blue-soft:#DCE8EE;
    --green:#3E7A54; --green-soft:#DFEBE3;
    --bright-green:#EAF0E4; --bright-green-dark:#DCE6D3;
    --pine:#3E6B52;
  }

  .fleet-filters{display:flex; flex-wrap:wrap; gap:10px; margin-bottom:40px;}
  .filter-pill{
    font-family:var(--sans); font-size:13.5px; font-weight:600;
    padding:10px 20px; border-radius:20px; border:1px solid transparent;
    background:var(--paper-dim); color:var(--ink-soft); cursor:pointer; transition:background .2s, color .2s;
  }
  .filter-pill:hover{background:var(--line);}
  .filter-pill.active{background:var(--forest-950); color:var(--paper);}

  .equip-grid{display:grid; grid-template-columns:repeat(3, 1fr); gap:24px;}
  .equip-card{
    background:var(--card-bg); border:1px solid var(--card-border); border-radius:var(--card-radius);
    overflow:hidden; display:flex; flex-direction:column;
  }
  .equip-card.hidden{display:none;}
  .equip-photo{
    aspect-ratio:16/10; width:100%; position:relative; background:#FFFFFF;
    display:flex; align-items:center; justify-content:center; overflow:hidden;
  }
  .equip-photo img{width:100%; height:100%; object-fit:contain; padding:20px; box-sizing:border-box;}
  .equip-photo .photo-placeholder{color:#8A9488; text-align:center; padding:14px;}
  .equip-photo .photo-placeholder svg{width:28px; height:28px; stroke:#8A9488; fill:none; stroke-width:1.3; margin:0 auto 8px;}
  .equip-photo .photo-placeholder span{font-family:var(--mono); font-size:9.5px; letter-spacing:0.04em; display:block; line-height:1.4; color:#6E7C6F;}
  .equip-body{padding:28px;flex:1;display:flex;flex-direction:column;background:var(--card-info);border-top:1px solid var(--card-border);}
  .equip-head{display:flex; align-items:flex-start; justify-content:space-between; gap:10px; margin-bottom:10px;}
  .equip-head h4{font-size:19px;font-weight:700;line-height:1.4;color:var(--forest-950);}
  .equip-badge{
    font-size:11px; font-weight:700; padding:4px 11px; border-radius:20px; white-space:nowrap; flex-shrink:0;
  }
  .equip-badge.amber{background:var(--amber-soft); color:var(--forest-950);}
  .equip-badge.blue{background:var(--blue-soft); color:var(--forest-950);}
  .equip-badge.violet{background:var(--violet-soft); color:var(--violet);}
  .equip-badge.green{background:var(--green-soft); color:var(--green);}
  .equip-desc{font-size:14.5px;color:var(--ink-soft);line-height:1.7;margin-bottom:18px;}
  .equip-checklist{display:flex;flex-direction:column;gap:9px;margin-top:auto;padding-top:18px;border-top:1px solid var(--card-border);}
  .equip-checklist li{display:flex; align-items:flex-start; gap:8px; font-size:13.5px; color:var(--ink); line-height:1.5;}
  .equip-checklist svg{width:15px; height:15px; stroke:var(--blue); fill:none; stroke-width:2.2; flex-shrink:0; margin-top:2px;}
  .equip-checklist b{font-weight:600;}

  @media (max-width: 860px){
    .equip-grid{grid-template-columns:1fr 1fr;}
  }
  @media (max-width: 560px){
    .equip-grid{grid-template-columns:1fr;}
  }

  @media (max-width: 860px){
    .fleet-grid{grid-template-columns:1fr;}
  }

  /* ===== Process strip ===== */
  .process{background:var(--paper);}
  .process-grid{display:grid; grid-template-columns:repeat(3, 1fr); gap:28px 24px;}
  .process-step{padding-top:24px; border-top:1px solid var(--ink);}
  .process-step .step-num{font-family:var(--mono); font-size:12px; color:var(--blue); margin-bottom:14px; display:block;}
  .process-step h4{font-size:16px; font-weight:600; margin-bottom:8px;}
  .process-step p{font-size:13.5px; color:var(--ink-soft);}

  /* ===== Contact ===== */
  .contact{background:var(--paper);}
  .contact-mobile-actions{display:none;}
  .contact-grid{display:grid; grid-template-columns:0.78fr 1.22fr; gap:32px; align-items:start;}
  .contact-panel{background:var(--forest-950);color:var(--paper);padding:40px 36px;min-height:100%;}
  .contact-panel-head{padding-bottom:32px;margin-bottom:32px;border-bottom:1px solid rgba(240,241,235,.18);}
  .contact-panel-head>span,.form-heading span{font-family:var(--sans);font-size:11px;font-weight:700;letter-spacing:.03em;text-transform:uppercase;color:var(--amber);}
  .contact-panel-head h2{font-size:clamp(24px,2.5vw,32px);line-height:1.35;margin:12px 0;color:var(--paper);}
  .contact-panel-head p{font-size:13.5px;color:#b9c5bc;}
  .contact-info-item{margin-bottom:32px;}
  .contact-info-item:last-child{margin-bottom:0;}
  .contact-info-item .label{
    font-family:var(--sans); font-size:13px; font-weight:600; letter-spacing:0.02em;
    color:var(--blue); margin-bottom:8px;
  }
  .contact-panel .contact-info-item .label{color:var(--amber);}
  .contact-info-item .value{font-size:15.5px; font-weight:600; color:var(--paper);}
  .contact-info-item .value.sub{font-size:13px; color:#aebbb1; font-weight:400; margin-top:2px;}

  .contact-form-card{background:#f7f7f2;border:1px solid var(--line);padding:40px;}
  .form-heading{display:flex;justify-content:space-between;align-items:end;gap:20px;padding-bottom:24px;margin-bottom:4px;border-bottom:1px solid var(--line);}
  .form-heading h2{font-size:24px;line-height:1.3;color:var(--forest-950);margin-top:8px;}
  .form-heading p{font-size:11.5px;color:var(--ink-soft);}
  .form-heading p strong,.contact-form-card label span{color:var(--amber);}

  form{display:flex; flex-direction:column; gap:20px;}
  .form-row{display:grid; grid-template-columns:1fr 1fr; gap:20px;}
  label{font-size:13.5px; font-weight:600; margin-bottom:8px; display:block; color:var(--forest-950);}
  input, select, textarea{
    width:100%; padding:14px 16px; font-family:var(--sans); font-size:14.5px;
    background:#fff; border:1px solid var(--line); border-radius:var(--radius);
    color:var(--ink); transition:border-color .2s;
  }
  input:focus, select:focus, textarea:focus{
    outline:2px solid rgba(217,125,44,.16); outline-offset:0; border-color:var(--amber);
  }
  textarea{resize:vertical; min-height:120px;}
  .form-submit{
    align-self:stretch; margin-top:8px;
    background:var(--forest-950); color:var(--paper); border:none;
    padding:16px 32px; font-size:15px; font-weight:700; border-radius:var(--radius); cursor:pointer;
  }
  .form-submit:hover{background:var(--amber); color:var(--forest-950);}
  .form-note{font-size:12.5px; color:var(--ink-soft); margin-top:4px;}
  .consent-box{
    max-height:130px; overflow-y:auto; border:1px solid var(--line); border-radius:var(--radius);
    padding:14px 16px; font-size:12.5px; color:var(--ink-soft); line-height:1.6; background:var(--paper-dim);
  }
  .consent-box strong{display:block; color:var(--forest-950); font-size:13px; margin-bottom:6px;}
  .consent-box p{margin-bottom:10px;}
  .consent-box p:last-child{margin-bottom:0;}
  .consent-group{display:flex; flex-direction:column; gap:14px;}
  .consent-disclosure{border:1px solid var(--line);background:var(--paper-dim);}
  .consent-disclosure summary{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:13px 16px;font-size:13.5px;font-weight:600;color:var(--forest-950);cursor:pointer;list-style:none;
  }
  .consent-disclosure summary::-webkit-details-marker{display:none;}
  .consent-disclosure summary span{font-size:11.5px;font-weight:600;color:var(--amber);white-space:nowrap;}
  .consent-disclosure summary span::after{content:' +';}
  .consent-disclosure[open] summary span::before{content:'접기';}
  .consent-disclosure[open] summary span{font-size:0;}
  .consent-disclosure[open] summary span::before{font-size:11.5px;}
  .consent-disclosure[open] summary span::after{content:' −';font-size:11.5px;}
  .consent-disclosure .consent-box{border:0;border-top:1px solid var(--line);border-radius:0;}
  .consent-check{
    display:flex; align-items:center; gap:9px; margin-top:10px; font-size:13.5px; color:var(--forest-950); cursor:pointer;
  }
  .consent-check input{width:16px; height:16px; accent-color:var(--forest-950); cursor:pointer; flex-shrink:0;}
  .form-submit:disabled{opacity:0.4; cursor:not-allowed;}
  .form-submit:disabled:hover{background:var(--forest-950); color:var(--paper);}
  .contact-map{
    margin-top:56px; border:1px solid var(--line); border-radius:var(--radius);
    overflow:hidden; aspect-ratio:21/7; width:100%;
  }
  .contact-map iframe{width:100%; height:100%; border:0; display:block; filter:grayscale(0.15) contrast(1.02);}
  .map-actions{display:flex; gap:10px; margin-top:14px; flex-wrap:wrap;}
  .map-actions a{
    font-family:var(--sans); font-size:13px; font-weight:600; color:var(--forest-950);
    border:1px solid var(--line); padding:9px 16px; border-radius:20px;
    transition:background .2s, border-color .2s;
  }
  .map-actions a:hover{background:var(--forest-950); color:var(--paper); border-color:var(--forest-950);}

  /* ===== Footer ===== */
  footer{background:var(--bright-green); color:#5C7355; padding:56px 0 32px;}
  .footer-top{
    display:flex; justify-content:space-between; align-items:flex-start;
    padding-bottom:40px; border-bottom:1px solid rgba(62,107,82,0.2);
    flex-wrap:wrap; gap:24px;
  }
  .footer-logo{
    background:var(--paper); display:inline-flex; align-items:center;
    padding:8px 14px; border-radius:6px; width:fit-content;
  }
  .footer-logo img{height:22px; width:auto; display:block;}
  .footer-links{display:flex; gap:32px; font-size:14px; color:#3F4E2C;}
  .footer-links a:hover{color:var(--pine);}
  .footer-bottom{padding-top:28px; display:flex; justify-content:space-between; font-size:12.5px; flex-wrap:wrap; gap:12px;}
  .footer-legal{
    font-size:12px; color:#5C7355; line-height:1.8; padding-top:24px;
    border-top:1px solid rgba(62,107,82,0.2); margin-top:8px;
  }

  /* ===== Scroll reveal ===== */
  .reveal{opacity:0; transform:translateY(24px); transition:opacity .7s ease, transform .7s ease;}
  .reveal.in{opacity:1; transform:translateY(0);}

  @media (prefers-reduced-motion: reduce){
    .reveal{opacity:1; transform:none; transition:none;}
    html{scroll-behavior:auto;}
  }

  /* ===== Responsive ===== */
  @media (max-width: 860px){
    nav{position:fixed; top:76px; left:0; right:0; bottom:0; background:var(--paper);
      flex-direction:column; align-items:flex-start; padding:32px; gap:24px;
      transform:translateX(100%); transition:transform .3s; overflow-y:auto;}
    nav.open{transform:translateX(0);}
    .nav-toggle{display:block;}
    .about-grid, .contact-grid{grid-template-columns:1fr; gap:48px;}
    .contact-map{aspect-ratio:4/3; margin-top:40px;}
    .service-grid{grid-template-columns:1fr;}
    .process-grid{grid-template-columns:1fr 1fr; gap:24px 20px;}
    .telemetry-bar{grid-template-columns:1fr;}
    .telemetry-item{border-left:none; padding-left:0; border-top:1px solid rgba(62,107,82,0.2); padding-top:16px;}
    .telemetry-item:first-child{border-top:none;}
    .form-row{grid-template-columns:1fr;}
    section{padding:80px 0;}
    .footer-top{flex-direction:column;}
  }


/* ===== Multi-page layout ===== */
body{min-height:100vh;}
nav a.active{color:var(--forest-950);font-weight:700;}
nav a.active::after{content:'';position:absolute;left:0;right:0;bottom:-8px;height:2px;background:var(--amber);}
.nav-cta.active{background:var(--amber);color:var(--forest-950)!important;}
.nav-cta.active::after{display:none;}
.subpage-main{padding-top:76px;}
.subpage-main .section-head h1,
.home-main .section-head h2{font-size:clamp(28px,3.6vw,40px);font-weight:700;letter-spacing:-0.01em;line-height:1.28;color:var(--forest-950);}
.subpage-main .services .section-head h1{color:var(--pine);}
.page-intro{padding:88px 0 0;background:var(--paper);}
.page-intro .section-head{margin-bottom:0;}
.home-main section:not(.hero){padding:96px 0;}
.home-overview{background:var(--paper);}
.home-overview-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:72px;align-items:start;}
.home-overview-copy p{font-size:16.5px;color:var(--ink-soft);margin-bottom:28px;max-width:590px;}
.home-strengths{display:flex;flex-wrap:wrap;gap:8px;margin:-8px 0 28px;}
.home-strengths span{font-size:12.5px;font-weight:600;color:var(--forest-950);border:1px solid var(--line);border-radius:20px;padding:6px 12px;background:var(--paper-dim);}
.home-links{display:flex;gap:12px;flex-wrap:wrap;}
.home-services{background:var(--bright-green);}
.home-services .section-head h2{color:var(--pine);}
.home-service-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--card-gap);}
.home-service-card{display:block;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--card-radius);padding:var(--card-padding);transition:border-color .2s,transform .2s;}
.home-service-card:hover{border-color:rgba(62,107,82,.55);transform:translateY(-2px);}
.home-service-card .service-num{font-size:12px;margin-bottom:18px;}
.home-service-card h3{font-size:20px;line-height:1.4;color:var(--pine);margin-bottom:10px;}
.home-service-card p{font-size:14.5px;line-height:1.7;color:var(--ink-soft);}
.home-stats{background:var(--paper-dim);}
.home-stats .stats-strip{margin-bottom:0;}
.home-cta{background:var(--forest-950);color:var(--paper);}
.home-cta .wrap{display:flex;align-items:center;justify-content:space-between;gap:32px;}
.home-cta h2{font-size:clamp(27px,3.5vw,40px);line-height:1.25;margin-bottom:10px;}
.home-cta p{color:#b7c5ba;}
.home-cta .btn{background:var(--amber);color:var(--forest-950);white-space:nowrap;}
.subpage-main .contact{padding-top:104px;}
#forest-management,#forest-engineering,#drone-service,#permit-service,#process{scroll-margin-top:96px;}

/* ===== Expanded company content ===== */
.content-title{font-size:clamp(24px,3vw,34px);line-height:1.35;color:var(--forest-950);margin-bottom:22px;}
.company-profile{border-top:2px solid var(--forest-950);}
.profile-row{display:grid;grid-template-columns:130px 1fr;gap:20px;padding:15px 4px;border-bottom:1px solid var(--line);}
.profile-row span{font-size:13px;color:var(--ink-soft);}
.profile-row strong{font-size:14.5px;font-weight:600;color:var(--forest-950);}
.company-values{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--card-gap);margin-top:72px;}
.company-values article{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--card-radius);padding:var(--card-padding);}
.company-values article>span,.service-detail-title>span,.technology-summary article>span{font-family:var(--mono);font-size:12px;font-weight:700;color:var(--amber);}
.company-values h3{font-size:19px;line-height:1.4;margin:16px 0 8px;color:var(--forest-950);}
.company-values p{font-size:14.5px;line-height:1.7;color:var(--ink-soft);}
.history-section{margin-top:88px;}
.compact-head{margin-bottom:32px;}
.history-timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:28px;}
.history-timeline .timeline-item{padding-bottom:0;}
.history-timeline .timeline-item::before{left:0;top:-33px;box-shadow:0 0 0 4px var(--paper);}

/* ===== Service detail content ===== */
.services .service-grid{grid-template-columns:repeat(2,1fr);}
.anchor-target{display:block;position:relative;top:-110px;visibility:hidden;}
.service-details{margin-top:72px;display:flex;flex-direction:column;gap:var(--card-gap);}
.service-detail{background:var(--card-info);border:1px solid var(--card-border);border-radius:var(--card-radius);padding:0;overflow:hidden;}
.service-detail-heading{display:grid;grid-template-columns:.85fr 1.15fr;gap:40px;align-items:center;padding:30px;border-bottom:1px solid var(--card-border);}
.service-detail-heading>p{font-size:14.5px;line-height:1.7;color:var(--ink-soft);}
.service-detail-title{display:flex;align-items:baseline;gap:14px;}
.service-detail-title h2{font-size:20px;line-height:1.4;letter-spacing:-.015em;color:var(--pine);}
.service-detail-columns{display:grid;grid-template-columns:repeat(3,1fr);gap:0;padding:26px 30px 30px;}
.service-info{padding:0 28px;}
.service-info:first-child{padding-left:0;}
.service-info:last-child{padding-right:0;}
.service-info+.service-info{border-left:1px solid var(--card-border);}
.service-detail-columns h3{
  font-family:'PretendardVariable','Pretendard',-apple-system,sans-serif;
  font-size:13px;
  font-weight:700;
  font-style:normal;
  line-height:1.6;
  letter-spacing:0;
  word-spacing:0;
  text-transform:none;
  color:var(--amber);
  margin-bottom:10px;
}
.service-detail-columns p{font-size:14px;line-height:1.75;color:var(--ink);}

/* ===== Featured project cases ===== */
.featured-cases{margin-bottom:72px;}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--card-gap);}
.case-card{border:1px solid var(--card-border);border-radius:var(--card-radius);background:var(--card-info);padding:var(--card-padding);display:flex;flex-direction:column;}
.case-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.case-top>span:first-child{font-family:var(--mono);font-size:12px;font-weight:700;color:var(--amber);}
.case-client{font-size:12.5px;color:var(--ink-soft);margin-bottom:6px;}
.case-card h3{font-size:20px;line-height:1.4;color:var(--forest-950);margin-bottom:10px;}
.case-summary{font-size:14.5px;line-height:1.7;color:var(--ink-soft);margin-bottom:20px;}
.case-card dl{margin-top:auto;border-top:1px solid var(--card-border);padding-top:4px;}
.case-card dl div{display:grid;grid-template-columns:76px 1fr;gap:12px;padding-top:12px;}
.case-card dt{font-size:13px;font-weight:700;color:var(--amber);}
.case-card dd{font-size:13.5px;font-weight:500;color:var(--ink);}
.record-heading{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:24px;}
.record-heading h2{font-size:28px;color:var(--forest-950);}
.record-heading p{font-size:13.5px;color:var(--ink-soft);}

/* ===== Combined technology and equipment ===== */
.technology-summary{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--card-gap);margin-bottom:72px;}
.technology-summary article{background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--card-radius);padding:var(--card-padding);display:flex;flex-direction:column;}
.technology-icon{width:32px;height:32px;margin:18px 0;}
.technology-icon svg{width:100%;height:100%;stroke:var(--amber);fill:none;stroke-width:1.5;}
.technology-summary h2{font-size:20px;line-height:1.4;margin:0 0 10px;color:var(--forest-950);}
.technology-summary p{font-size:14.5px;line-height:1.7;color:var(--ink-soft);margin-bottom:20px;}
.technology-list{list-style:none;display:flex;flex-direction:column;gap:9px;margin-top:auto;padding-top:18px;border-top:1px solid var(--card-border);}
.technology-list li{position:relative;padding-left:20px;font-size:13.5px;line-height:1.55;color:var(--ink);}
.technology-list li::before{content:'✓';position:absolute;left:0;color:var(--amber);font-weight:700;}
.subsection-heading{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:30px;}
.subsection-heading h2{font-size:28px;color:var(--forest-950);}
.subsection-heading>p{max-width:480px;font-size:12.5px;color:var(--ink-soft);}
.embedded-capabilities{padding:96px 0 0;margin-top:96px;border-top:1px solid var(--line);background:transparent;scroll-margin-top:96px;}
.embedded-capabilities .capability-card h3{font-size:19px;line-height:1.4;font-weight:700;color:var(--forest-950);margin-bottom:10px;}
.capability-output{margin-top:auto;border-top:1px solid var(--card-border);padding-top:14px;}
.capability-output div{display:grid;grid-template-columns:54px 1fr;gap:8px;margin-top:7px;}
.capability-output dt{font-size:13px;font-weight:700;color:var(--amber);}
.capability-output dd{font-size:13.5px;font-weight:500;color:var(--ink);}
.capability-notice{font-size:12.5px;color:var(--ink-soft);border-left:2px solid var(--amber);padding-left:14px;margin-top:22px;}

/* ===== Privacy page ===== */
.privacy-page{background:var(--paper);}
.privacy-wrap{max-width:900px;}
.policy-content{border-top:2px solid var(--forest-950);}
.policy-content>section{padding:30px 0;border-bottom:1px solid var(--line);}
.policy-content h2{font-size:18px;color:var(--forest-950);margin-bottom:12px;}
.policy-content p,.policy-content li{font-size:14px;color:var(--ink-soft);}
.policy-content p+p{margin-top:8px;}
.policy-content ul{padding-left:20px;}
.policy-content a,.policy-link a{color:var(--blue);text-decoration:underline;text-underline-offset:3px;}
.policy-table{border-top:1px solid var(--line);margin:14px 0;}
.policy-table div{display:grid;grid-template-columns:160px 1fr;border-bottom:1px solid var(--line);}
.policy-table dt,.policy-table dd{padding:12px 14px;font-size:13.5px;}
.policy-table dt{font-weight:700;background:var(--paper-dim);}
.policy-table dd{color:var(--ink-soft);}
.policy-date{margin-top:28px;font-size:12.5px;color:var(--ink-soft);}
.policy-link{font-size:12.5px;color:var(--ink-soft);}

@media(max-width:860px){
  .services .service-grid,.company-values,.case-grid,.technology-summary{grid-template-columns:1fr;}
  .service-grid,.service-details,.company-values,.case-grid,.technology-summary,.capability-grid,.equip-grid,.home-service-grid{gap:16px;}
  .service-card,.technology-summary article,.home-service-card,.company-values article,.case-card,.capability-body{padding:24px;}
  .equip-body{padding:24px;}
  .contact-mobile-actions{display:flex;gap:10px;margin:-32px 0 28px;}
  .contact-mobile-actions a{display:flex;align-items:center;justify-content:center;min-height:48px;padding:12px 18px;font-size:14px;font-weight:700;border:1px solid var(--forest-950);}
  .contact-mobile-primary{flex:1;background:var(--forest-950);color:var(--paper);}
  .contact-mobile-secondary{color:var(--forest-950);background:transparent;}
  .contact-grid{gap:28px;}
  .contact-panel{padding:30px 28px;}
  .contact-panel-head{padding-bottom:22px;margin-bottom:24px;}
  .contact-panel-head h2{font-size:25px;margin:9px 0;}
  .contact-info-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 20px;}
  .contact-info-item{margin-bottom:0;min-width:0;}
  .contact-info-item.contact-address{grid-column:1/-1;}
  .contact-info-item .value{font-size:14px;overflow-wrap:anywhere;}
  .contact-form-card{scroll-margin-top:94px;}
  .service-detail-heading{grid-template-columns:1fr;gap:10px;}
  .service-detail-columns{grid-template-columns:1fr;gap:0;}
  .service-info{padding:18px 0;border-top:1px solid var(--card-border);}
  .service-info:first-child{border-top:0;padding-top:0;}
  .service-info:last-child{padding-bottom:0;}
  .service-info+.service-info{border-left:0;}
  .history-timeline{grid-template-columns:1fr 1fr;gap:46px 24px;}
  .subsection-heading,.record-heading{align-items:flex-start;flex-direction:column;gap:12px;}
}
@media(max-width:560px){
  .profile-row{grid-template-columns:1fr;gap:3px;}
  .history-timeline{grid-template-columns:1fr;}
  .policy-table div{grid-template-columns:1fr;}
  .policy-table dd{padding-top:4px;}
  .contact-panel,.contact-form-card{padding:28px 22px;}
  .contact-mobile-actions{margin-top:-34px;}
  .contact-mobile-actions a{padding-left:13px;padding-right:13px;font-size:13.5px;}
  .form-heading{align-items:flex-start;flex-direction:column;gap:8px;}
  .service-detail-heading,.service-detail-columns{padding-left:22px;padding-right:22px;}
}
@media(max-width:860px){
  .home-overview-grid{grid-template-columns:1fr;gap:36px;}
  .home-service-grid{grid-template-columns:1fr;}
  .home-cta .wrap{align-items:flex-start;flex-direction:column;}
}
@media(max-width:560px){
  .home-main section:not(.hero){padding:72px 0;}
  .subpage-main{padding-top:76px;}
}