@charset "UTF-8";

:root {
  --bg-primary:#08090d;
  --bg-secondary:#0d1017;
  --bg-card:#141823;
  --bg-widget:#11151f;
  --bg-input:#090b10;
  --bg-hover:#1c2230;
  --bg-code:#0b0d12;
  --text-primary:#f3f4f6;
  --text-secondary:#b7beca;
  --text-muted:#717986;
  --text-link:#ff4b55;
  --accent:#c1121f;
  --accent-light:#ff3b47;
  --accent-dark:#76070f;
  --accent-bg:rgba(193,18,31,.14);
  --accent-border:rgba(255,59,71,.35);
  --border:#262c38;
  --border-light:#1d2430;
  --shadow:0 10px 30px rgba(0,0,0,.28);
  --shadow-lg:0 18px 55px rgba(0,0,0,.42);
  --radius:14px;
  --radius-sm:8px;
  --radius-lg:18px;
  --header-bg:rgba(5,6,10,.92);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scrollbar-width:thin;scrollbar-color:#3b1118 #08090d}
body{font-family:Pretendard,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:radial-gradient(circle at top left,rgba(193,18,31,.14),transparent 28%),var(--bg-primary);color:var(--text-primary);font-size:15px;line-height:1.7;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:var(--text-link);transition:.2s}a:hover{color:#fff}img{max-width:100%;height:auto;display:block}ul,ol{list-style:none}::selection{background:var(--accent);color:#fff}

.rt-header{position:sticky;top:0;z-index:100;background:var(--header-bg);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.rt-header-inner{height:62px;max-width:1500px;margin:0 auto;padding:0 22px;display:flex;align-items:center;justify-content:space-between;gap:18px}
.rt-logo{display:flex;align-items:center;gap:11px;color:#fff}.rt-logo-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--accent-light),var(--accent-dark));display:grid;place-items:center;font-weight:900;box-shadow:0 0 24px rgba(255,59,71,.28)}.rt-logo-text{font-weight:900;letter-spacing:-.4px}.rt-menu{display:flex;align-items:center;gap:4px;overflow:hidden}.rt-menu ul{display:flex;gap:4px}.rt-menu a{display:block;color:var(--text-secondary);font-size:.9rem;padding:8px 12px;border-radius:10px}.rt-menu a:hover{color:#fff;background:var(--accent-bg)}.rt-mobile-btn{display:none;background:var(--bg-card);border:1px solid var(--border);color:#fff;width:40px;height:40px;border-radius:12px;font-size:18px}
.rt-progress{position:sticky;top:62px;z-index:99;height:3px;background:transparent}.rt-progress-fill{height:100%;width:0;background:linear-gradient(90deg,var(--accent),var(--accent-light));box-shadow:0 0 12px rgba(255,59,71,.7)}

.rt-layout{max-width:1500px;margin:0 auto;padding:24px 20px;display:grid;grid-template-columns:230px minmax(0,940px)280px;gap:20px}.rt-sidebar{align-self:start;position:sticky;top:86px}.rt-content{min-width:0}.rt-widget{background:linear-gradient(180deg,rgba(255,255,255,.015),transparent),var(--bg-widget);border:1px solid var(--border);border-radius:var(--radius-lg);padding:17px;margin-bottom:16px;box-shadow:var(--shadow);overflow:hidden}.rt-widget h3{font-size:.88rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text-secondary);padding-bottom:10px;margin-bottom:12px;border-bottom:1px solid var(--border-light)}.rt-widget h3 i{color:var(--accent-light);margin-right:6px}

.rt-profile{text-align:center}.rt-profile-avatar{display:inline-block;margin-bottom:12px}.rt-profile-avatar img{width:98px;height:98px;object-fit:cover;border-radius:20px;border:3px solid var(--accent);background:#161b22}.rt-profile strong{display:block;font-size:1rem}.rt-profile p{color:var(--text-secondary);font-size:.84rem;margin-top:5px}.rt-profile-links{display:flex;justify-content:center;gap:8px;margin-top:12px}.rt-profile-links a{width:31px;height:31px;border-radius:50%;display:grid;place-items:center;background:var(--bg-hover);border:1px solid var(--border);color:var(--text-secondary);font-size:.82rem}.rt-profile-links a:hover{background:var(--accent);color:#fff;border-color:var(--accent)}
.rt-search{display:flex;align-items:center;gap:8px;background:var(--bg-input);border:1px solid var(--border);border-radius:12px;padding:9px 11px}.rt-search:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-bg)}.rt-search i{color:var(--text-muted);font-size:.85rem}.rt-search input{flex:1;min-width:0;border:0;background:transparent;outline:0;color:var(--text-primary);font:inherit;font-size:.9rem}.rt-search button{border:0;background:transparent;color:var(--text-muted);cursor:pointer}.rt-search button:hover{color:var(--accent-light)}

.rt-category{font-size:.86rem}.rt-category a{color:var(--text-secondary)}.rt-category a:hover,.rt-category .link_active{color:var(--accent-light)!important}.rt-category .c_cnt{color:var(--text-muted);font-size:.75rem}.rt-category table,.rt-category table table{background:transparent!important;border-collapse:collapse}.rt-category img[src*="tree/base/"],.rt-category img[src*="new_ico"],.rt-category .ib img{display:none!important}.rt-category td.ib,.rt-category td[style*="width:39px"]{width:0!important;padding:0!important;background:none!important}.rt-category div[id^="text_"]{font-weight:700!important;color:var(--text-primary)!important;line-height:1.7!important}.rt-category div[id$="_children"]{display:block!important;padding-left:13px!important;margin-bottom:7px!important}.rt-category div[id$="_children"] div[id^="text_"]{font-weight:400!important;color:var(--text-secondary)!important}.rt-category div[id$="_children"] div[id^="text_"]::before{content:'▸ ';color:var(--accent-light);font-size:.72rem}

.rt-cover{border:1px solid var(--accent-border);background:radial-gradient(circle at 20% 0,rgba(255,59,71,.22),transparent 35%),linear-gradient(135deg,#11151f,#1b0c11 60%,#090b10);border-radius:24px;padding:38px 34px;margin-bottom:20px;box-shadow:var(--shadow-lg)}.rt-cover-badge{display:inline-block;padding:7px 13px;border-radius:999px;background:var(--accent-bg);border:1px solid var(--accent-border);color:var(--accent-light);font-size:.78rem;font-weight:900}.rt-cover h1{margin:16px 0 9px;font-size:clamp(28px,4vw,46px);line-height:1.15;letter-spacing:-1.4px}.rt-cover p{color:var(--text-secondary);font-size:1rem}.rt-cover-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-bottom:20px}.rt-cover-card{display:block;background:var(--bg-card);border:1px solid var(--border);border-radius:18px;padding:16px;color:#fff}.rt-cover-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:13px;margin-bottom:12px}.rt-cover-card strong{display:block;font-size:1.02rem}.rt-cover-card span{color:var(--text-muted);font-size:.8rem}

.rt-list-header{display:flex;align-items:end;justify-content:space-between;margin-bottom:16px;padding:0 2px}.rt-list-header h2{font-size:1.35rem;letter-spacing:-.5px}.rt-list-header span{color:var(--text-muted);font-size:.86rem}.rt-post-card{display:grid;grid-template-columns:190px minmax(0,1fr);gap:20px;background:var(--bg-card);border:1px solid var(--border);border-left:3px solid transparent;border-radius:18px;padding:18px 18px 18px 14px;margin-bottom:16px;transition:.2s}.rt-post-card:hover{border-color:var(--accent-border);border-left-color:var(--accent-light);box-shadow:var(--shadow)}.rt-post-thumb{width:190px}.rt-post-thumb img{width:190px;height:150px;object-fit:cover;border-radius:14px}.rt-post-info{min-width:0}.rt-post-meta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:8px;font-size:.8rem}.rt-post-meta a,.rt-post-meta span{color:var(--text-muted)}.rt-post-meta i{color:var(--accent-light);margin-right:4px}.rt-post-info h2{font-size:1.22rem;line-height:1.4;margin-bottom:9px;letter-spacing:-.5px}.rt-post-info h2 a{color:var(--text-primary)}.rt-post-info h2 a:hover{color:var(--accent-light)}.rt-post-info p{color:var(--text-secondary);font-size:.92rem;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.rt-read-more{display:inline-flex;align-items:center;gap:6px;margin-top:12px;color:var(--accent-light);font-weight:800;font-size:.86rem}

.rt-single{background:var(--bg-card);border:1px solid var(--border);border-radius:22px;padding:30px 34px;box-shadow:var(--shadow);overflow:visible}.rt-breadcrumb{font-size:.82rem;color:var(--text-muted);display:flex;gap:8px;margin-bottom:13px}.rt-breadcrumb a{color:var(--text-muted)}.rt-breadcrumb a:hover{color:var(--accent-light)}.rt-single-meta{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:10px}.rt-single-meta a{padding:4px 10px;border-radius:999px;background:var(--accent-bg);border:1px solid var(--accent-border);font-size:.78rem;font-weight:800;color:var(--accent-light)}.rt-single-meta span{color:var(--text-muted);font-size:.82rem}.rt-single-title{font-size:clamp(28px,4vw,42px);line-height:1.25;letter-spacing:-1.4px;margin:8px 0 22px}.rt-toc{display:none;margin:18px 0 24px;padding:18px;background:#0d1017;border:1px solid var(--border);border-radius:16px}.rt-toc.open{display:block}.rt-toc strong{display:block;margin-bottom:10px;color:#fff}.rt-toc a{display:block;padding:5px 0;color:var(--text-secondary);font-size:.92rem}.rt-toc a.h3{padding-left:14px;font-size:.86rem}.rt-toc a:hover{color:var(--accent-light)}
.rt-post-body{font-size:17px;line-height:1.85;color:var(--text-secondary)}.rt-post-body h2{font-size:1.65rem;color:var(--text-primary);margin:38px 0 14px;padding-left:13px;border-left:4px solid var(--accent-light);letter-spacing:-.6px}.rt-post-body h3{font-size:1.25rem;color:var(--text-primary);margin:28px 0 10px}.rt-post-body p{margin:0 0 18px}.rt-post-body a{border-bottom:1px solid var(--accent-border)}.rt-post-body strong{color:#fff}.rt-post-body blockquote{margin:24px 0;padding:18px 20px;background:var(--accent-bg);border-left:4px solid var(--accent-light);border-radius:12px;color:#f4d6d8}.rt-post-body code{background:var(--bg-code);border:1px solid var(--border);border-radius:6px;padding:2px 6px;color:#ff9aa1;font-size:.9em}.rt-post-body pre{background:#07090d;border:1px solid var(--border);border-radius:16px;padding:18px;overflow:auto;margin:22px 0}.rt-post-body pre code{background:transparent;border:0;padding:0;color:#e5e7eb}.rt-post-body img{border-radius:16px;margin:22px auto}.rt-post-body table{width:100%;border-collapse:collapse;margin:22px 0;background:#0d1017}.rt-post-body th,.rt-post-body td{border:1px solid var(--border);padding:11px}.rt-post-body th{background:var(--accent-bg);color:#fff}.rt-disclaimer{margin-top:30px;padding:16px 18px;border-radius:14px;background:#0d1017;border:1px solid var(--border);color:var(--text-muted);font-size:.88rem}.rt-tag-box{margin-top:20px;color:var(--text-muted)}

.rt-cta{background:radial-gradient(circle at 0 0,rgba(255,59,71,.3),transparent 45%),linear-gradient(180deg,#171b27,#10080b);border-color:var(--accent-border)}.rt-cta span{color:var(--accent-light);font-size:.77rem;font-weight:900}.rt-cta h3{text-transform:none;color:#fff;border:0;margin:4px 0 8px;padding:0;font-size:1.1rem}.rt-cta p{color:var(--text-secondary);font-size:.88rem}.rt-cta-btn{display:flex;align-items:center;justify-content:center;margin-top:15px;padding:11px 14px;border-radius:12px;background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#fff!important;font-weight:900;box-shadow:0 10px 22px rgba(193,18,31,.24)}.rt-list li{border-bottom:1px solid var(--border-light);padding:9px 0}.rt-list li:last-child{border-bottom:0}.rt-list a{color:var(--text-secondary);font-size:.88rem}.rt-list a:hover{color:var(--accent-light)}

.rt-paging{display:flex;justify-content:center;align-items:center;gap:12px;margin:30px 0}.rt-paging a,.rt-paging span a{display:inline-flex;align-items:center;justify-content:center;min-width:36px;height:36px;border:1px solid var(--border);background:var(--bg-card);border-radius:10px;color:var(--text-secondary);padding:0 10px}.rt-paging a:hover,.rt-paging span a:hover{border-color:var(--accent-border);color:#fff}.rt-scroll{position:fixed;right:22px;bottom:22px;display:flex;flex-direction:column;gap:8px;z-index:90}.rt-scroll button{width:40px;height:40px;border-radius:12px;border:1px solid var(--border);background:var(--bg-card);color:var(--text-secondary);cursor:pointer}.rt-scroll button:hover{background:var(--accent);color:#fff}.rt-footer{text-align:center;border-top:1px solid var(--border);padding:34px 20px;color:var(--text-muted);font-size:.85rem}.rt-footer strong{display:block;color:#fff;margin-bottom:7px}

.rt-comments{margin-top:20px;background:var(--bg-card);border:1px solid var(--border);border-radius:18px;padding:20px}.rt-mobile-overlay{display:none}

@media(max-width:1220px){.rt-layout{grid-template-columns:220px minmax(0,1fr);max-width:1120px}.rt-sidebar-right{display:none}.rt-sidebar-left{position:sticky}}
@media(max-width:900px){.rt-menu{display:none}.rt-mobile-btn{display:block}.rt-layout{display:block;padding:18px 14px}.rt-sidebar-left{position:fixed;top:0;left:-290px;width:280px;height:100vh;overflow:auto;z-index:200;background:var(--bg-primary);padding:18px 14px;transition:left .25s;border-right:1px solid var(--border)}.rt-sidebar-left.open{left:0}.rt-mobile-overlay.active{display:block;position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:180}.rt-content{width:100%}.rt-cover-grid{grid-template-columns:1fr}.rt-single{padding:24px 20px}.rt-header-inner{padding:0 14px}.rt-progress{top:62px}}
@media(max-width:620px){body{font-size:14px}.rt-logo-text{max-width:190px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.rt-cover{padding:28px 22px}.rt-post-card{grid-template-columns:1fr;padding:16px}.rt-post-thumb,.rt-post-thumb img{width:100%;height:auto;aspect-ratio:16/9}.rt-single-title{font-size:1.75rem}.rt-post-body{font-size:16px}.rt-scroll{right:14px;bottom:14px}}