:root { --brand: hsl(0, 72%, 51%); --fg: hsl(0, 0%, 7%); --muted: hsl(0, 0%, 45%); --border: hsl(0, 0%, 93%); --bg: #fff; --card: hsl(0, 0%, 98%); }
    * { box-sizing: border-box; margin: 0; padding: 0; }
    html { scroll-behavior: smooth; }
    body { font-family: "Pretendard", "Noto Sans KR", sans-serif; color: var(--fg); background: var(--bg); line-height: 1.6; -webkit-font-smoothing: antialiased; }
    a { color: inherit; text-decoration: none; }
    button { font: inherit; cursor: pointer; border: none; background: none; }
    .header { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: #fff; border-bottom: 1px solid var(--border); box-shadow: 0 1px 3px rgba(0,0,0,.06); }
    .header-inner { max-width: 1200px; margin: 0 auto; padding: 0 24px; height: 60px; display: flex; align-items: center; justify-content: space-between; }
    .header-logo-link { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
    .header-logo-img { width: 28px; height: 28px; object-fit: contain; }
    .logo-word { display: inline-flex; align-items: baseline; min-width: 132px; font-size: 17px; color: var(--fg); }
    .logo-word .word { display: inline-block; letter-spacing: .12em; transition: opacity .9s cubic-bezier(.22,1,.36,1), transform .9s cubic-bezier(.22,1,.36,1), filter .9s; }
    .logo-word .word.en { font-family: "Pretendard", sans-serif; font-weight: 800; text-transform: uppercase; letter-spacing: .12em; }
    .logo-word .word.kr { font-weight: 800; letter-spacing: -.02em; text-shadow: 0 1px 0 rgba(255,255,255,.35), 0 6px 16px rgba(0,0,0,.18); }
    .logo-word .word.fade-out { opacity: 0; transform: translateY(-4px) translateX(4px); filter: blur(7px); }
    .logo-word .word.fade-in { opacity: 1; transform: translateY(0); filter: blur(0); }
    .logo-word .eight { color: var(--brand); font-weight: 600; margin-left: 2px; }
    .footer-brand { display: flex; align-items: center; gap: 8px; margin-bottom: 20px; }
    .footer-brand img { width: 28px; height: 28px; object-fit: contain; filter: brightness(0) invert(1); }
    .footer-brand .word-en { font-size: 17px; font-weight: 200; letter-spacing: .12em; text-transform: uppercase; }
    .footer-brand .word-eight { font-size: 17px; font-weight: 600; color: #f87171; margin-left: 2px; }
    .nav { display: flex; gap: 32px; }
    .nav-item { position: relative; font-size: 14px; font-weight: 500; color: #404040; padding: 18px 0; }
    .nav-item:hover, .nav-item.active { color: var(--brand); }
    .header-actions { display: flex; gap: 8px; }
    .btn-outline { padding: 8px 16px; font-size: 13px; border: 1px solid #d4d4d4; border-radius: 8px; }
    .btn-brand { padding: 8px 16px; font-size: 13px; font-weight: 600; color: #fff; background: var(--brand); border-radius: 8px; }
    .mega { display: none; border-top: 1px solid #f0f0f0; background: #fff; }
    .mega.open { display: block; }
    .mega-inner { max-width: 1200px; margin: 0 auto; padding: 32px 24px; display: flex; gap: 40px; }
    .mega-side { width: 200px; flex-shrink: 0; }
    .mega-side .tag { font-size: 11px; font-weight: 600; color: var(--brand); letter-spacing: .15em; text-transform: uppercase; margin-bottom: 12px; }
    .mega-side h3 { font-size: 22px; font-weight: 900; margin-bottom: 8px; }
    .mega-side p { font-size: 13px; color: var(--muted); }
    .mega-side a { display: inline-block; margin-top: 24px; font-size: 13px; color: var(--muted); }
    .mega-grid { flex: 1; display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 24px; }
    .mega-link { text-align: left; padding: 4px; }
    .mega-link .num { font-size: 12px; color: #d4d4d4; margin-bottom: 8px; display: block; }
    .mega-link h4 { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
    .mega-link h4:hover { color: var(--brand); }
    .mega-link p { font-size: 13px; color: var(--muted); line-height: 1.5; }
    .badge { font-size: 10px; padding: 2px 6px; background: #f5f5f5; color: var(--muted); border-radius: 4px; margin-left: 4px; }
    .spacer { height: 60px; }
    .detail-main { max-width: 800px; margin: 0 auto; padding: 48px 24px 64px; }
    .detail-main h1 { font-size: clamp(28px, 4vw, 34px); font-weight: 900; letter-spacing: -.03em; margin-bottom: 16px; }
    .lead { font-size: 16px; color: var(--muted); margin-bottom: 40px; }
    .card { border: 1px solid var(--border); border-radius: 12px; padding: 20px; background: var(--card); margin-bottom: 16px; }
    .card .num { font-size: 12px; color: #d4d4d4; margin-bottom: 8px; }
    .card h3 { font-size: 15px; font-weight: 700; margin-bottom: 8px; }
    .card p { font-size: 14px; color: var(--muted); line-height: 1.6; }
    .grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; margin-bottom: 32px; }
    .gray-box { background: #f5f5f5; border: 1px solid var(--border); border-radius: 12px; padding: 16px 20px; font-size: 14px; color: var(--muted); line-height: 1.6; margin: 24px 0; }
    .red-box { border: 1px solid rgba(220,38,38,.4); background: rgba(220,38,38,.05); border-radius: 12px; padding: 16px 20px; font-size: 14px; line-height: 1.6; margin: 24px 0; }
    .tbl-wrap { overflow-x: auto; margin: 24px 0; }
    table { width: 100%; min-width: 480px; border-collapse: collapse; font-size: 14px; }
    th, td { text-align: left; padding: 12px; border-bottom: 1px solid var(--border); }
    th { font-weight: 600; }
    td { color: var(--muted); }
    .quick-links { border-top: 1px solid var(--border); background: #f9f9f9; padding: 32px 24px; text-align: center; }
    .quick-links a { margin: 0 12px; font-size: 14px; color: var(--muted); }
    .quick-links a:hover { color: var(--brand); }
    .site-footer { background: var(--fg); color: #fff; padding: 64px 24px 32px; }
    .site-footer .inner { max-width: 1100px; margin: 0 auto; }
    .footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 48px; margin-bottom: 48px; }
    .footer-grid h4 { font-size: 12px; letter-spacing: .2em; text-transform: uppercase; opacity: .3; margin-bottom: 20px; }
    .footer-grid ul { list-style: none; font-size: 14px; opacity: .5; }
    .footer-grid li { margin-bottom: 12px; }
    .footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding-top: 32px; display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px; font-size: 13px; opacity: .5; }
    .footer-bottom a { padding: 8px 16px; border: 1px solid rgba(255,255,255,.2); border-radius: 8px; opacity: .6; }
    /* Home hero — CSS 배너 (격자 없음, 오브젝트 강조) */
    .hero { min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 64px 24px 32px; position: relative; overflow: hidden; background: #fff; }
    .hero-banner { position: absolute; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; background: #fff; }
    .hero-banner__mesh { position: absolute; inset: -40%; background:
      radial-gradient(at 22% 28%, hsl(0 90% 62% / .18), transparent 48%),
      radial-gradient(at 78% 18%, hsl(350 95% 58% / .14), transparent 44%),
      radial-gradient(at 85% 72%, hsl(0 72% 51% / .12), transparent 42%),
      radial-gradient(at 12% 78%, hsl(0 0% 12% / .07), transparent 38%); animation: rb8Mesh 20s ease-in-out infinite alternate; }
    .hero-banner__halo { position: absolute; left: 50%; top: 44%; width: min(520px, 85vw); height: min(520px, 85vw); transform: translate(-50%,-50%);
      background: radial-gradient(circle, hsl(0 72% 51% / .14) 0%, hsl(0 72% 51% / .04) 42%, transparent 68%);
      animation: rb8Halo 5s ease-in-out infinite; }
    .hero-banner__donut { position: absolute; left: 50%; top: 44%; width: min(500px, 82vw); height: min(500px, 82vw); transform: translate(-50%,-50%);
      border-radius: 50%; background: conic-gradient(from 0deg, hsl(0 72% 51% / .55), hsl(0 85% 65% / .15) 18%, transparent 28%, hsl(0 72% 51% / .35) 42%, transparent 55%, hsl(0 60% 45% / .4) 72%, transparent 85%, hsl(0 72% 51% / .5));
      -webkit-mask: radial-gradient(circle, transparent 56%, #000 57.5%, #000 61%, transparent 62.5%);
      mask: radial-gradient(circle, transparent 56%, #000 57.5%, #000 61%, transparent 62.5%);
      animation: rb8Spin 22s linear infinite; filter: drop-shadow(0 0 28px hsl(0 72% 51% / .25)); }
    .hero-banner__spark { position: absolute; width: 6px; height: 6px; border-radius: 50%; background: #fff; box-shadow: 0 0 12px 2px hsl(0 72% 51% / .7); animation: rb8Spark 2.4s ease-in-out infinite; }
    .hero-banner__obj { position: absolute; animation: rb8Float 8s ease-in-out infinite; }
    .hero-banner__obj--bubble { left: 6%; top: 38%; width: 128px; height: 92px; border-radius: 26px 26px 26px 8px; --rb8-r: -10deg; animation-delay: -.8s;
      background: linear-gradient(145deg, rgba(255,255,255,.95), rgba(254,226,226,.85));
      border: 2px solid hsl(0 72% 51% / .45);
      box-shadow: 0 24px 50px hsl(0 72% 51% / .22), inset 0 1px 0 rgba(255,255,255,.9); }
    .hero-banner__obj--bubble::before { content: ""; position: absolute; left: 18px; top: 22px; width: 56px; height: 8px; border-radius: 4px; background: linear-gradient(90deg, var(--brand), hsl(0 72% 51% / .4)); }
    .hero-banner__obj--bubble::after { content: ""; position: absolute; left: 18px; top: 40px; right: 18px; height: 5px; border-radius: 3px; background: hsl(0 0% 93%); box-shadow: 0 12px 0 hsl(0 0% 93%), 0 24px 0 hsl(0 0% 96%); }
    .hero-banner__obj--card { right: 7%; bottom: 18%; width: 148px; height: 88px; border-radius: 14px; --rb8-r: 8deg; animation-delay: -2s;
      background: linear-gradient(155deg, #2a2a2a, #0a0a0a);
      box-shadow: 0 28px 56px rgba(0,0,0,.35), 0 0 0 1px rgba(255,255,255,.08), inset 0 1px 0 rgba(255,255,255,.15); }
    .hero-banner__obj--card::before { content: ""; position: absolute; left: 16px; top: 18px; width: 52px; height: 7px; border-radius: 4px; background: linear-gradient(90deg, #ef4444, #fca5a5); box-shadow: 0 0 16px hsl(0 72% 51% / .6); }
    .hero-banner__obj--card::after { content: ""; position: absolute; left: 16px; top: 34px; right: 16px; height: 4px; border-radius: 2px; background: rgba(255,255,255,.12); box-shadow: 0 10px 0 rgba(255,255,255,.08), 0 20px 0 rgba(255,255,255,.06); }
    .hero-banner__pill { position: absolute; padding: 8px 16px; border-radius: 999px; font-size: 11px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase;
      animation: rb8Float 6s ease-in-out infinite; box-shadow: 0 12px 28px rgba(0,0,0,.12); }
    .hero-banner__pill--sms { right: 18%; top: 42%; background: linear-gradient(135deg, #fff, #fef2f2); color: var(--brand); border: 2px solid hsl(0 72% 51% / .35); --rb8-r: 4deg; animation-delay: -1.5s; }
    .hero-banner__pill--talk { left: 22%; bottom: 28%; background: linear-gradient(135deg, #fef9c3, #fde047); color: #713f12; border: 2px solid hsl(45 93% 47% / .5); --rb8-r: -6deg; animation-delay: -3s; }
    .hero-banner__hex { position: absolute; right: 22%; bottom: 32%; width: 56px; height: 64px; clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
      background: linear-gradient(180deg, hsl(0 72% 51% / .35), hsl(0 72% 51% / .08)); border: none; animation: rb8Float 11s ease-in-out infinite; --rb8-r: 15deg; animation-delay: -4s;
      box-shadow: 0 0 30px hsl(0 72% 51% / .3); }
    @keyframes rb8Mesh { 0% { transform: translate(0,0) scale(1); } 100% { transform: translate(2%, -2%) scale(1.05); } }
    @keyframes rb8Halo { 0%, 100% { opacity: .85; transform: translate(-50%,-50%) scale(1); } 50% { opacity: 1; transform: translate(-50%,-50%) scale(1.06); } }
    @keyframes rb8Float { 0%, 100% { transform: translateY(0) rotate(var(--rb8-r, 0deg)); } 50% { transform: translateY(-18px) rotate(calc(var(--rb8-r, 0deg) + 4deg)); } }
    @keyframes rb8Spin { to { transform: translate(-50%,-50%) rotate(360deg); } }
    @keyframes rb8Spark { 0%, 100% { opacity: .3; transform: scale(.8); } 50% { opacity: 1; transform: scale(1.2); } }
    @media (max-width: 768px) {
      .hero-banner__obj--bubble, .hero-banner__obj--card, .hero-banner__hex { transform: scale(.88); opacity: .9; }
      .hero-banner__pill--talk { left: 10%; }
    }
    .hero-content { position: relative; z-index: 10; display: flex; flex-direction: column; align-items: center; max-width: 48rem; }
    .hero-logo-wrap { position: relative; margin-bottom: 40px; }
    .hero-logo-img { width: 80px; height: 80px; object-fit: contain; display: block; margin: 0 auto; filter: drop-shadow(0 0 40px rgba(220,38,38,.15)); }
    @media (min-width: 768px) { .hero-logo-img { width: 112px; height: 112px; } }
    .hero-logo-glow { position: absolute; inset: 0; margin: auto; width: 80px; height: 80px; border-radius: 50%; background: hsl(0 72% 51% / .05); filter: blur(24px); animation: heroGlow 2s ease-in-out infinite; }
    @media (min-width: 768px) { .hero-logo-glow { width: 112px; height: 112px; } }
    @keyframes heroGlow { 0%, 100% { opacity: .6; } 50% { opacity: 1; } }
    @keyframes heroPulse { 0%, 100% { opacity: 1; } 50% { opacity: .4; } }
    .hero-tag { display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px; border-radius: 999px; border: 1px solid hsl(0 0% 93%); background: #fff; font-size: 12px; font-weight: 500; color: var(--muted); margin-bottom: 32px; text-transform: uppercase; letter-spacing: .05em; }
    .hero-tag i { width: 6px; height: 6px; background: var(--brand); border-radius: 50%; animation: heroPulse 2s ease-in-out infinite; }
    .hero h1 { font-size: clamp(36px, 6vw, 66px); font-weight: 900; line-height: 1.06; letter-spacing: -.035em; margin-bottom: 28px; }
    .brand-wrap { position: relative; display: inline-block; }
    .hero h1 .brand { color: var(--brand); }
    .brand-underline { position: absolute; left: 0; right: 0; bottom: -8px; height: 3px; background: hsl(0 72% 51% / .3); border-radius: 999px; transform-origin: left; animation: brandLine .6s cubic-bezier(.16,1,.3,1) 1s forwards; transform: scaleX(0); }
    @keyframes brandLine { to { transform: scaleX(1); } }
    .hero-sub { font-size: clamp(16px, 2.5vw, 19px); font-weight: 600; color: var(--muted); max-width: 36rem; margin: 0 auto 48px; line-height: 1.625; }
    .hero-btns { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-bottom: 40px; }
    @media (min-width: 768px) { .hero-btns { margin-bottom: 0; } }
    .hero-btns a { padding: 16px 32px; border-radius: 999px; font-weight: 600; font-size: 15px; }
    .hero-btns .primary { background: var(--fg); color: #fff; box-shadow: 0 10px 24px -16px rgba(0,0,0,.45); }
    .hero-btns .secondary { border: 1px solid hsl(0 0% 93%); background: #fff; }
    .hero-scroll { position: absolute; bottom: 8px; z-index: 10; display: flex; flex-direction: column; align-items: center; gap: 8px; animation: scrollBob 2.5s ease-in-out infinite; }
    @media (min-width: 768px) { .hero-scroll { bottom: 32px; } }
    @keyframes scrollBob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(8px); } }
    .hero-scroll span { font-size: 11px; color: hsl(0 0% 45% / .4); letter-spacing: .2em; text-transform: uppercase; }
    .hero-scroll .line { width: 1px; height: 32px; background: linear-gradient(to bottom, hsl(0 0% 45% / .3), transparent); }
    .section { padding: 80px 24px; max-width: 1200px; margin: 0 auto; }
    .section-head { text-align: center; margin-bottom: 56px; }
    .section-head .label { font-size: 11px; font-weight: 600; color: var(--brand); letter-spacing: .22em; text-transform: uppercase; margin-bottom: 12px; }
    .section-head h2 { font-size: clamp(28px, 4vw, 38px); font-weight: 900; margin-bottom: 16px; }
    .section-head p { color: var(--muted); font-size: 15px; max-width: 36rem; margin: 0 auto; }
    .intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
    .nav-toggle {
      display: none;
      flex-direction: column;
      justify-content: center;
      gap: 5px;
      width: 44px;
      height: 44px;
      margin-left: auto;
      padding: 10px;
      border: 1px solid var(--border);
      border-radius: 10px;
      background: #fff;
      cursor: pointer;
      flex-shrink: 0;
      z-index: 110;
      position: relative;
    }
    .nav-toggle-bar {
      display: block;
      width: 100%;
      height: 2px;
      border-radius: 2px;
      background: var(--fg);
      transition: transform .2s ease, opacity .2s ease;
    }
    .nav-toggle.is-open .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .nav-toggle.is-open .nav-toggle-bar:nth-child(2) { opacity: 0; }
    .nav-toggle.is-open .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
    .mobile-nav {
      display: none;
      border-top: 1px solid var(--border);
      background: #fff;
      max-height: min(78vh, 640px);
      overflow-y: auto;
      box-shadow: 0 12px 28px rgba(0,0,0,.08);
    }
    .mobile-nav:not([hidden]) { display: block; }
    .mobile-nav-inner { padding: 8px 16px 4px; }
    .mobile-nav-group { border-bottom: 1px solid var(--border); }
    .mobile-nav-group-btn {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 14px 4px;
      font-size: 15px;
      font-weight: 700;
      color: var(--fg);
      text-align: left;
    }
    .mobile-nav-group-body { display: none; padding: 0 4px 12px; }
    .mobile-nav-group.is-open .mobile-nav-group-body { display: block; }
    .mobile-nav-link {
      display: block;
      padding: 10px 8px;
      font-size: 14px;
      color: #404040;
      border-radius: 8px;
    }
    .mobile-nav-link:hover { background: #f5f5f5; color: var(--brand); }
    .mobile-nav-link--all { color: var(--muted); font-size: 13px; }
    .mobile-nav-actions {
      display: flex;
      gap: 8px;
      padding: 16px;
      border-top: 1px solid var(--border);
    }
    .mobile-nav-actions a {
      flex: 1;
      text-align: center;
      justify-content: center;
      display: inline-flex;
      align-items: center;
    }
    body.mobile-nav-open { overflow: hidden; }
    .site-footer a { color: inherit; opacity: .85; }
    .site-footer a:hover { opacity: 1; text-decoration: underline; }
    @media (max-width: 900px) {
      .nav { display: none !important; }
      .header-actions { display: none !important; }
      .nav-toggle { display: inline-flex !important; }
      .intro-grid { grid-template-columns: 1fr; }
    }
    @media (min-width: 901px) {
      .nav-toggle { display: none !important; }
      .mobile-nav { display: none !important; }
    }
    .preview-card { border: 1px solid var(--border); border-radius: 16px; background: #fff; overflow: hidden; box-shadow: 0 20px 40px rgba(0,0,0,.08); }
    .preview-head { display: flex; justify-content: space-between; align-items: center; padding: 12px 20px; border-bottom: 1px solid #f0f0f0; background: #fafafa; font-size: 12px; color: var(--muted); }
    .tabs { display: flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
    .tabs button { padding: 4px 12px; font-size: 11px; }
    .tabs button.on { background: var(--fg); color: #fff; }
    .highlight { display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 12px; margin: 4px; background: #fff; }
    .faq-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
    .faq-tabs button { padding: 6px 12px; border-radius: 8px; font-size: 13px; background: #f5f5f5; color: var(--muted); }
    .faq-tabs button.on { background: var(--brand); color: #fff; }
    .accordion-item { border: 1px solid var(--border); border-radius: 12px; margin-bottom: 8px; overflow: hidden; }
    .accordion-trigger { width: 100%; text-align: left; padding: 14px 16px; font-size: 14px; font-weight: 500; display: flex; justify-content: space-between; }
    .accordion-body { display: none; padding: 0 16px 14px; font-size: 14px; color: var(--muted); }
    .accordion-item.open .accordion-body { display: block; }
    input, select { padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; width: 100%; max-width: 280px; }
    pre { background: #f5f5f5; border: 1px solid var(--border); border-radius: 12px; padding: 16px; font-size: 13px; overflow-x: auto; margin: 16px 0; }
    .notice-item { padding: 16px 0; border-bottom: 1px solid var(--border); }
    .notice-item .meta { font-size: 12px; color: var(--muted); margin-bottom: 4px; }
    .notice-item h4 { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.mega-link { display: block; color: inherit; text-decoration: none; }

.header-actions a.btn-outline,
.header-actions a.btn-brand { display: inline-flex; align-items: center; }