:root{
    /* ===== 공인싸 브랜드 가이드 v1.0 — 개발용 토큰 ===== */
    --brand-50:#F5F6FF;  --brand-100:#E8E9FF; --brand-200:#D4D5FF;
    --brand-300:#B5B5FF; --brand-400:#9791FF; --brand-500:#7C6FF0;
    --brand-550:#6C5CDC; --brand-575:#5F4FCC; --brand-700:#5446B2;
    --brand-800:#3D2F8B; --brand-900:#281966; --brand-950:#180848;

    --bg-page:#FFFFFF;        --bg-surface:#F5F6FF;   --bg-accent:#E8E9FF;
    --text-body:#1A1A23;      --text-muted:#6D6D7A;   --text-brand:#5446B2;
    --action:#6C5CDC;         --action-hover:#5F4FCC; --action-active:#5142B0;
    --on-action:#FFFFFF;      --brand:#7C6FF0;        --focus:#7C6FF0;
    --border-control:#8584C7; --border-soft:#E8E9FF;

    /* 사이트 전용 보조 토큰 (가이드 미포함, 브랜드 스케일 안에서 파생) */
    --hero-bg:var(--bg-surface);
    --hero-blob:var(--brand-100);
    --tint:var(--bg-surface);
    --card:var(--bg-page);
    --line:var(--border-soft);
    --req:#E0483C;      /* 상태색(오류) — 브랜드 가이드 미확정 항목, 임시값 유지 */
    --success:#059669;  /* 상태색(성공) — 브랜드 가이드 미확정 항목, 임시값 유지 */

    --radius:16px;
    --maxw:1180px;
    --mono:'IBM Plex Mono', ui-monospace, monospace;
    --font-sans:'SUITE','Pretendard',-apple-system,BlinkMacSystemFont,'Apple SD Gothic Neo','Malgun Gothic',sans-serif;
  }
  [data-theme="dark"]{
    --bg-page:#0D0D14;        --bg-surface:#181822;   --bg-accent:#281966;
    --text-body:#E9E9F0;      --text-muted:#9D9DAA;   --text-brand:#9791FF;
    --action:#6C5CDC;         --action-hover:#5F4FCC; --action-active:#6453D1;
    --on-action:#FFFFFF;      --brand:#7C6FF0;        --focus:#7C6FF0;
    --border-control:#6F6EA2; --border-soft:#26262F;
    --hero-bg:var(--bg-surface); --hero-blob:var(--bg-accent);
    --tint:var(--bg-surface); --card:var(--bg-page); --line:var(--border-soft);
  }

  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{font-family:var(--font-sans);background:var(--bg-page);color:var(--text-body);line-height:1.6;-webkit-font-smoothing:antialiased;transition:padding-bottom .25s ease,background .2s ease,color .2s ease;overflow-x:hidden}
  body.bar-visible{padding-bottom:var(--floatbar-h, 64px)}
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 40px}
  a{color:inherit;text-decoration:none}
  ul{list-style:none}
  img,svg{display:block}
  button{font-family:inherit;cursor:pointer}
  :focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:4px}
  @media (prefers-reduced-motion: reduce){ *{animation:none!important;transition:none!important} }

  /* ---------- HEADER ---------- */
  header.site{position:sticky;top:0;z-index:50;background:transparent;border-bottom:1px solid transparent;transition:background .25s ease,border-color .25s ease}
  header.site.scrolled{background:color-mix(in srgb, var(--bg-page) 88%, transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--border-soft)}
  .nav{display:flex;align-items:center;justify-content:space-between;padding:11px 40px;max-width:var(--maxw);margin:0 auto}
  .brand{display:inline-flex;align-items:center}
  .brand-logo{height:34px;width:auto;display:block}
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border-radius:10px;padding:11px 18px;font-size:14px;font-weight:600;border:1px solid transparent;white-space:nowrap}
  .btn-primary{background:var(--action);color:var(--on-action)}
  .btn-primary:hover{background:var(--action-hover)}
  .btn-primary:active{background:var(--action-active)}
  .btn-ghost{background:transparent;color:var(--text-brand);border-color:var(--border-control)}
  .btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
  .btn-dark{background:var(--brand-900);color:#fff}
  .btn-dark:hover{background:var(--brand-950)}

  /* ---------- ANCHOR OFFSET ---------- */
  section[id]{scroll-margin-top:88px}

  /* ---------- HERO ---------- */
  .hero{padding:80px 0 64px;overflow:hidden;background:var(--hero-bg);position:relative}
  .hero-center{position:relative;z-index:1;max-width:640px;margin:0 auto;text-align:center}
  .hero-kicker{font-size:14.5px;font-weight:600;color:var(--text-brand);letter-spacing:.01em;margin-bottom:16px}
  .hero h1{font-size:clamp(30px,4.6vw,44px);font-weight:800;letter-spacing:-.02em;line-height:1.3;color:var(--text-body)}
  .hero h1 .accent{color:var(--brand)}
  .hero-copy{margin-top:24px}
  .hero-copy p{font-size:16.5px;font-weight:600;color:var(--text-body);line-height:1.7}
  .pname{color:var(--text-brand);font-weight:800}
  .hero-actions{margin-top:30px;display:flex;flex-direction:column;align-items:center;gap:12px}
  .hero-actions .btn{padding:14px 26px;font-size:15px}
  .hero-freq{font-size:12.5px;color:var(--text-muted)}
  .hero-freq a{color:var(--text-muted);font-weight:600;text-decoration:underline;text-decoration-color:var(--border-soft)}
  .hero-freq a:hover{color:var(--text-body)}

  /* hero background — layered blob cluster upper-right + scattered accent dots either side
     (전량 브랜드 스케일 안에서만 사용 — 모노크롬 톤온톤) */
  .hero-bg{position:absolute;inset:0;pointer-events:none;overflow:hidden}
  .hero-art{position:absolute;top:-60px;right:-70px;width:460px;height:460px}
  .hero-glow{fill-opacity:.9;animation:heroGlowPulse 9s ease-in-out infinite}
  .hero-rings{transform-origin:50% 50%;animation:heroOrbitPulse 9s ease-in-out infinite}
  .hero-core{fill-opacity:.92;transform-origin:50% 50%;animation:heroOrbitPulse 9s ease-in-out infinite .3s}
  .hero-orbit-dots{transform-origin:50% 50%;animation:heroOrbitSpin 42s linear infinite}
  @keyframes heroOrbitPulse{0%,100%{transform:scale(1)}50%{transform:scale(1.14)}}
  @keyframes heroGlowPulse{0%,100%{fill-opacity:.9}50%{fill-opacity:.65}}
  @keyframes heroOrbitSpin{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}
  @media (prefers-reduced-motion: reduce){
    .hero-glow,.hero-rings,.hero-core,.hero-orbit-dots{animation:none}
  }
  .spark{position:absolute;border-radius:50%;background:var(--brand-300);z-index:1;animation:sparkFloat 6s ease-in-out infinite}
  .spark.s1{width:14px;height:14px;left:3%;top:56%}
  .spark.s2{width:10px;height:10px;left:9%;top:80%;background:var(--brand);animation-delay:.6s}
  .spark.s3{width:13px;height:13px;right:22%;top:58%;animation-delay:1.2s}
  .spark.s4{width:9px;height:9px;right:6%;top:86%;background:var(--brand);animation-delay:1.8s}
  @keyframes sparkFloat{0%,100%{transform:translateY(0);opacity:.85}50%{transform:translateY(-8px);opacity:1}}
  @media (prefers-reduced-motion: reduce){ .spark{animation:none} }

  /* ---------- SECTION SHELL ---------- */
  section.block{padding:76px 0}
  #newsletter{padding:52px 0}
  .head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:34px;flex-wrap:wrap}
  .head .eb{font-family:var(--mono);font-size:11.5px;font-weight:600;letter-spacing:.1em;color:var(--text-brand);text-transform:uppercase;margin-bottom:8px;display:block}
  .head h2{font-size:clamp(22px,3vw,29px);font-weight:800;letter-spacing:-.02em;color:var(--text-body)}
  .head p{font-size:14px;color:var(--text-muted);margin-top:6px;max-width:480px}
  .head .more{font-size:13.5px;font-weight:600;color:var(--text-brand);white-space:nowrap}
  .head .more:hover{color:var(--brand-800)}
  .tabs{display:flex;gap:6px;background:var(--bg-surface);border-radius:999px;padding:4px}
  .tab-btn{border:none;background:transparent;padding:9px 18px;border-radius:999px;font-size:13.5px;font-weight:600;color:var(--text-muted);cursor:pointer;transition:background .18s ease,color .18s ease}
  .tab-btn:hover{color:var(--text-body)}
  .tab-btn.active{background:var(--bg-page);color:var(--text-body);box-shadow:0 4px 10px -4px rgba(40,25,102,.2)}
  .more-wrap{text-align:center;margin-top:40px}
  .more-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--text-brand);border:1px solid var(--border-control);padding:12px 26px;border-radius:10px;transition:background .18s ease,border-color .18s ease,color .18s ease}
  .more-link:hover{background:var(--bg-accent);border-color:var(--bg-accent);color:var(--brand-800)}

  /* ---------- THUMBNAIL CARD GRID ---------- */
  .tgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:48px 32px;margin-top:52px}
  .tgrid[hidden]{display:none}
  .tcard{display:flex;flex-direction:column;transition:transform .18s ease}
  .tcard:hover{transform:translateY(-3px)}
  .tcard:hover .thumb img,.tcard:hover .thumb svg.ph{transform:scale(1.04)}
  .tcard .thumb{aspect-ratio:16/9;position:relative;overflow:hidden;background:var(--bg-surface);border-radius:14px}
  .tcard .thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .3s ease}
  .tcard .thumb svg.ph{width:100%;height:100%;display:block;transition:transform .3s ease}
  .tcard .info{margin-top:14px}
  .tcard h4{font-size:16px;font-weight:800;line-height:1.5;color:var(--text-body)}
  .tcard .meta-line{display:flex;align-items:center;gap:7px;margin-top:12px;font-size:12px;font-weight:600;color:var(--text-muted)}
  .tcard .meta-line>span:first-child{color:var(--text-body);font-weight:700}
  .tcard .meta-line .sep{color:var(--border-soft)}
  .tcard .meta-line .time{display:inline-flex;align-items:center;gap:4px;color:var(--text-muted);font-weight:600}
  .tcard .meta-line svg{width:12px;height:12px;flex-shrink:0;display:block}

  /* ---------- FEATURED CARD (full-width, 1x3) ---------- */
  .tcard-featured{grid-column:1/-1;display:grid;grid-template-columns:1fr 1.05fr;gap:40px;align-items:start;transition:transform .18s ease}
  .tcard-featured:hover{transform:translateY(-3px)}
  .tcard-featured:hover .thumb img,.tcard-featured:hover .thumb svg.ph{transform:scale(1.04)}
  .tcard-featured .thumb{aspect-ratio:16/10;position:relative;overflow:hidden;background:var(--bg-surface);border-radius:18px}
  .tcard-featured .thumb img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .3s ease}
  .tcard-featured .thumb svg.ph{width:100%;height:100%;display:block;transition:transform .3s ease}
  .tcard-featured h3{font-size:23px;font-weight:800;line-height:1.5;color:var(--text-body);letter-spacing:-.01em}
  .tcard-featured .summary{margin-top:22px;font-size:15px;line-height:1.75;color:var(--text-body)}
  .tcard-featured .meta-line{display:flex;align-items:center;gap:7px;margin-top:18px;font-size:12.5px;font-weight:600;color:var(--text-muted)}
  .tcard-featured .meta-line>span:first-child{color:var(--text-body);font-weight:700}
  .tcard-featured .meta-line .sep{color:var(--border-soft)}
  .tcard-featured .meta-line .time{display:inline-flex;align-items:center;gap:4px;color:var(--text-muted);font-weight:600}
  .tcard-featured .meta-line svg{width:12px;height:12px;flex-shrink:0;display:block}

  /* ---------- SUBSCRIBE MID CTA ---------- */
  .subscribe{background:var(--bg-accent);border:1px solid var(--brand-200);color:var(--text-body);border-radius:24px;padding:36px 44px}
  .sub-inner{display:grid;grid-template-columns:1fr .9fr;gap:44px;align-items:stretch}
  .sub-copy{display:flex;flex-direction:column;justify-content:center}
  .freq-pill{display:inline-flex;align-items:center;font-size:12.5px;font-weight:600;color:var(--text-brand);margin-bottom:18px;align-self:flex-start}
  .subscribe h2{font-size:clamp(24px,3.4vw,32px);font-weight:800;letter-spacing:-.02em;line-height:1.4;color:var(--text-body)}
  .subscribe h2 .h2-pre{display:inline-block;font-size:.62em;font-weight:600;color:var(--text-muted);margin-bottom:4px}
  .sub-fields{display:flex;flex-direction:column;justify-content:center;gap:12px}
  .sub-fields input[type=email],.sub-fields input[type=text],.sub-fields select{width:100%;padding:14px 15px;border-radius:10px;border:1px solid var(--border-control);font-size:14.5px;background:var(--bg-page);color:var(--text-body);font-family:inherit}
  .sub-fields select{appearance:none;-webkit-appearance:none;color:var(--text-muted);background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8'><path d='M1 1l5 5 5-5' stroke='%236D6D7A' stroke-width='1.6' fill='none' fill-rule='evenodd'/></svg>");background-repeat:no-repeat;background-position:right 15px center}
  .sub-fields input:focus,.sub-fields select:focus{outline:2px solid var(--focus);outline-offset:1px;border-color:transparent}
  .sub-bottom{margin-top:20px;padding-top:18px;border-top:1px solid var(--brand-200);display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
  .sub-checks{display:flex;flex-direction:column;gap:2px}
  .agree-all{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--text-body);padding-bottom:6px;margin-bottom:2px}
  .agree-all input{accent-color:var(--brand);width:15px;height:15px}
  .agree-row{display:flex;align-items:center;justify-content:space-between;gap:8px}
  .agree-row .agree{display:flex;align-items:flex-start;gap:8px;font-size:12.5px;color:var(--text-muted);padding:3px 0}
  .agree-row .agree input{margin-top:2px;flex-shrink:0;accent-color:var(--border-control)}
  .agree-toggle{background:none;border:none;font-size:11.5px;color:var(--text-muted);font-weight:600;padding:4px 2px;cursor:pointer;white-space:nowrap}
  .agree-toggle:hover{color:var(--text-body)}
  .agree-detail{font-size:11.5px;color:var(--text-muted);line-height:1.6;padding:0 0 8px 23px;margin-top:-2px}
  .sub-bottom .btn{padding:14px 30px;white-space:nowrap}
  .status{margin-top:10px;font-size:12.5px;font-weight:600;color:var(--success);display:none;width:100%}

  /* ---------- FLOATING SUBSCRIBE BANNER ---------- */
  .float-bar{position:fixed;left:0;right:0;bottom:0;z-index:70;background:var(--bg-accent);box-shadow:0 -6px 18px -8px rgba(40,25,102,.16);border-top:1px solid var(--border-soft);transform:translateY(100%);transition:transform .35s ease}
  .float-bar.show{transform:translateY(0)}
  .float-bar .inner{max-width:var(--maxw);margin:0 auto;padding:12px 24px;display:flex;align-items:center;gap:14px}
  .float-bar .mark{display:flex;align-items:center;justify-content:center;flex-shrink:0}
  .float-bar .mark img{height:34px;width:auto;display:block}
  .float-bar .msg{flex:1;min-width:0}
  .float-bar .msg b{display:block;font-size:14.5px;font-weight:600;color:var(--text-body);letter-spacing:-.01em;line-height:1.4}
  .float-bar .msg-cta{margin-left:8px}
  .float-bar .btn{background:var(--action);color:var(--on-action);padding:9px 18px;font-size:13px;white-space:nowrap;border-radius:999px}
  .float-bar .btn:hover{background:var(--action-hover)}
  .float-bar .close{width:26px;height:26px;border-radius:8px;border:none;background:transparent;color:var(--text-muted);font-size:15px;flex-shrink:0}
  .float-bar .close:hover{color:var(--text-body);background:color-mix(in srgb, var(--bg-page) 60%, transparent)}
  @media (max-width:680px){
    .float-bar .inner{padding:10px 16px;gap:10px}
    .float-bar .mark{display:none}
    .float-bar .msg b{font-size:12.5px}
  }

  /* ---------- TAGS ---------- */
  .tagcloud{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
  .tag{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--border-control);background:var(--bg-page);border-radius:999px;padding:9px 18px;font-weight:600;font-size:15px;color:var(--text-body);transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease}
  .tag .cnt{font-size:12.5px;font-weight:600;color:var(--text-muted)}
  .tag:hover .cnt{color:var(--brand-800)}
  .tag:hover{background:var(--bg-accent);border-color:var(--bg-accent);color:var(--brand-800);transform:scale(1.1)}

  /* ---------- CLOSING CTA (flows directly into footer) ---------- */
  .closing{background:var(--brand-900);color:#fff;padding:60px 0 66px;position:relative;overflow:hidden;text-align:center}
  .closing-inner{position:relative;z-index:1;max-width:680px;margin:0 auto}
  .closing .eb-light{display:inline-flex;font-size:13px;font-weight:600;letter-spacing:.02em;color:#fff;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);padding:7px 16px;border-radius:999px;margin-bottom:20px}
  .closing .eb-light{max-width:92%;text-align:center;white-space:normal;line-height:1.4}
  @media (max-width:480px){ .closing .eb-light{font-size:12px;padding:7px 14px} }
  .closing h2{font-size:clamp(20px,3vw,28px);font-weight:800;line-height:1.6;color:#fff}
  .closing h2 .lead{display:block;font-size:clamp(23px,3.6vw,32px);margin-bottom:10px}
  .closing h2 .sub{display:block;font-size:.62em;font-weight:600;white-space:nowrap}
  .closing-cta-group{display:flex;align-items:center;justify-content:center;gap:12px;margin-top:28px;flex-wrap:wrap}
  .btn-ghost-dark{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.32)}
  .btn-ghost-dark:hover{border-color:#fff}
  .closing-orbit{position:absolute;top:50%;left:50%;width:680px;height:680px;z-index:0;pointer-events:none;animation:orbitZoom 8.5s ease-in-out infinite}
  @keyframes orbitZoom{0%,100%{transform:translate(-50%,-50%) scale(1)}50%{transform:translate(-50%,-50%) scale(1.18)}}

  /* ---------- FOOTER ---------- */
  footer.site{background:var(--bg-page);color:var(--text-body);margin-top:0;border-top:1px solid var(--border-soft)}
  .foot-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:40px;padding:88px 0 36px}
  .foot-brand p{margin-top:14px;font-size:13px;color:var(--text-muted);max-width:340px;line-height:1.6}
  .foot-col h5{font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);margin-bottom:14px}
  .foot-col a{display:block;font-size:13.5px;padding:6px 0;color:var(--text-body)}
  .foot-col a:hover{color:var(--text-brand)}
  .foot-bottom{border-top:1px solid var(--border-soft);padding:20px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:12px;color:var(--text-muted)}

  /* ---------- REVEAL ---------- */
  .reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease, transform .6s ease}
  .reveal.in{opacity:1;transform:none}

  /* ---------- RESPONSIVE ---------- */
  @media (max-width:980px){
    .wrap{padding:0 28px}
    .nav{padding:11px 28px}
    .hero-art{width:360px;height:360px;top:-40px;right:-90px}
    .tgrid{grid-template-columns:1fr 1fr}
    .tcard-featured{grid-template-columns:1fr;gap:20px}
    .sub-inner{grid-template-columns:1fr}
    .foot-grid{grid-template-columns:1fr 1fr}
  }
  @media (max-width:680px){
    .wrap{padding:0 22px}
    .nav{padding:11px 22px}
    .tgrid{grid-template-columns:1fr}
    .foot-grid{grid-template-columns:1fr;padding:64px 0 24px;gap:32px}
    .subscribe{padding:32px 22px}
    .sub-bottom{flex-direction:column;align-items:stretch}
    .sub-bottom .btn{width:100%}
    .closing{padding:64px 0 68px}
    .hero{padding:48px 0 40px}
    .hero-art{width:260px;height:260px;top:-30px;right:-70px;opacity:.8}
    .spark.s3,.spark.s4{display:none}
  }
  @media (max-width:400px){
    .wrap{padding:0 18px}
    .nav{padding:11px 18px}
    .hero-art{width:210px;height:210px}
    .spark.s2{display:none}
  }