:root{--pitch:#0d3b2e;--pitch2:#11503e;--pitch3:#0a2e24;--lime:#a3e635;--lime2:#ecfccb;--ink:#10231d;--tx:#2b3b35;--mu:#6b7d76;--ln:#dfe8e3;--bg:#f4f7f5;--hd:"Exo 2",Arial,sans-serif;--bd:"Source Sans 3",Arial,sans-serif}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:20px}
body{margin:0;background:var(--bg);color:var(--tx);font:400 17.5px/1.7 var(--bd)}
img{max-width:100%;height:auto;display:block}
a{color:#15803d}
.rt-top{background:var(--pitch3);display:flex;align-items:center;gap:24px;padding:12px 28px;border-bottom:3px solid var(--lime)}
.rt-logo img{width:216px}
.rt-top-tag{margin:0;color:#a7c4b8;font-size:.92rem}
.rt-top-age{margin-left:auto;font:800 .9rem var(--hd);color:var(--pitch);background:var(--lime);border-radius:6px;padding:4px 10px}
/* 3 columns */
.rt-layout{max-width:1400px;margin:0 auto;display:grid;grid-template-columns:230px minmax(0,1fr) 290px;gap:28px;padding:26px 24px 40px}
.rt-left{position:sticky;top:20px;align-self:start;max-height:calc(100vh - 40px);overflow-y:auto}
.rt-left-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:22px}
.rt-left-nav a{display:flex;gap:10px;align-items:center;text-decoration:none;color:var(--ink);font:700 .95rem var(--hd);padding:10px 12px;border-radius:10px;border-left:4px solid transparent}
.rt-left-nav a:hover{background:#e7efe9}
.rt-left-nav a.cur{background:var(--pitch);color:#fff;border-left-color:var(--lime)}
.rt-left-nav a.cur svg{color:var(--lime)}
.rt-left-toc p{font:800 .75rem var(--hd);text-transform:uppercase;letter-spacing:.12em;color:var(--mu);margin:0 0 8px}
.rt-left-toc ol{margin:0;padding-left:1.2em;font-size:.86rem;line-height:1.4}
.rt-left-toc li{margin-bottom:6px}
.rt-left-toc a{color:var(--tx);text-decoration:none}
.rt-left-toc a:hover{color:#15803d}
/* pitch hero */
.rt-article{background:#fff;border-radius:18px;overflow:hidden;box-shadow:0 2px 12px rgba(13,59,46,.07)}
.rt-pitch{position:relative;padding:34px 34px 30px;color:#fff;background:
  radial-gradient(circle at 50% 50%,transparent 58px,rgba(255,255,255,.14) 59px,rgba(255,255,255,.14) 61px,transparent 62px),
  linear-gradient(90deg,transparent calc(50% - 1px),rgba(255,255,255,.14) calc(50% - 1px),rgba(255,255,255,.14) calc(50% + 1px),transparent calc(50% + 1px)),
  repeating-linear-gradient(90deg,var(--pitch) 0 80px,var(--pitch2) 80px 160px)}
.rt-pitch::after{content:"";position:absolute;inset:12px;border:2px solid rgba(255,255,255,.14);border-radius:6px;pointer-events:none}
.rt-crumbs{position:relative;z-index:1;font-size:.86rem;color:#c3dcd1;margin-bottom:12px}
.rt-crumbs a{color:#e0f2e9}
.rt-crumbs span{color:var(--lime)}
.rt-pitch h1{position:relative;z-index:1;font:800 clamp(1.7rem,3vw,2.5rem)/1.18 var(--hd);font-style:italic;margin:0 0 16px}
.rt-facts{position:relative;z-index:1;list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0}
.rt-facts li{display:flex;align-items:center;gap:6px;background:rgba(0,0,0,.25);border:1px solid rgba(163,230,53,.35);border-radius:6px;padding:3px 10px;font-size:.86rem}
.rt-facts svg{color:var(--lime)}
.rt-hero-img{margin:0}
.rt-hero-img img{width:100%;max-height:420px;object-fit:cover}
.rt-content{padding:26px 34px 30px}
.rt-lead{font-size:1.18rem;color:var(--ink);font-weight:600;margin:0 0 22px;padding:16px 20px;background:var(--lime2);border-radius:12px}
.rt-content h2{display:flex;gap:12px;align-items:flex-start;font:800 1.55rem/1.25 var(--hd);color:var(--ink);margin:40px 0 14px;padding-bottom:10px;border-bottom:2px solid var(--ln)}
.rt-content h2::before{content:"";flex:none;width:28px;height:28px;margin-top:2px;background:var(--pitch) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23a3e635' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M7 12.5l3 3 7-7'/%3E%3C/svg%3E") center/18px no-repeat;clip-path:polygon(50% 0,100% 15%,100% 60%,50% 100%,0 60%,0 15%)}
.rt-content h3{font:700 1.2rem var(--hd);color:var(--pitch);margin:24px 0 8px}
.rt-content p{margin:0 0 1em}
.rt-content strong{color:var(--ink)}
.rt-content ul,.rt-content ol{padding-left:1.3em}
.rt-content li{margin-bottom:.4em}
.rt-content li::marker{color:#15803d;font-weight:700}
.tbl-wrap{overflow-x:auto;margin:0 0 1.3em;border-radius:12px;border:1px solid var(--ln)}
.tbl-wrap table{width:100%;border-collapse:collapse;min-width:540px;font-size:.94rem}
.tbl-wrap th{background:var(--pitch);color:#fff;text-align:left;padding:10px 12px;font:700 .88rem var(--hd)}
.tbl-wrap td{padding:9px 12px;border-top:1px solid var(--ln)}
.tbl-wrap tbody tr:nth-child(odd) td{background:#f8fbf9}
.rt-fig{margin:22px 0 6px}
.rt-fig img{border-radius:12px}
.rt-fig figcaption{font-size:.86rem;color:var(--mu);margin-top:6px;padding-left:10px;border-left:3px solid var(--lime)}
/* margin calc */
.rt-calc{margin:22px 0 6px;background:var(--pitch);color:#fff;border-radius:16px;padding:22px;box-shadow:inset 0 0 0 2px rgba(163,230,53,.25)}
.rt-calc-title{font:800 1.25rem var(--hd);margin:0 0 14px;color:var(--lime)}
.rt-calc-fields{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.rt-calc-f{display:flex;flex-direction:column;gap:6px;font:700 .85rem var(--hd);color:#c3dcd1;text-align:center}
.rt-calc input{background:#fff;border:0;border-radius:10px;padding:12px;font:800 1.3rem var(--hd);color:var(--ink);text-align:center;width:100%}
.rt-calc input:focus{outline:3px solid var(--lime)}
.rt-calc-out{display:grid;grid-template-columns:1fr 1.4fr 1.4fr;gap:10px;margin:16px 0 10px}
.rt-calc-out div{background:rgba(0,0,0,.25);border-radius:10px;padding:10px 12px}
.rt-calc-out span{display:block;font-size:.78rem;color:#a7c4b8}
.rt-calc-out b{font:800 1.15rem var(--hd);color:var(--lime)}
.rt-calc-out b.is-neg{color:#fca5a5}
.rt-calc-note{font-size:.82rem;color:#a7c4b8;margin:0}
/* timeline faq */
.rt-timeline{list-style:none;margin:0;padding:0 0 0 22px;border-left:3px solid var(--ln)}
.rt-tl{position:relative;margin-bottom:6px}
.rt-tl button{width:100%;text-align:left;background:none;border:0;padding:10px 0 10px 16px;font:700 1.05rem/1.4 var(--hd);color:var(--ink);cursor:pointer;position:relative}
.rt-tl-dot{position:absolute;left:-33px;top:13px;width:18px;height:18px;border-radius:50%;background:#fff;border:3px solid var(--pitch);transition:.2s}
.rt-tl.open .rt-tl-dot{background:var(--lime);border-color:var(--pitch);box-shadow:0 0 0 4px rgba(163,230,53,.35)}
.rt-tl button:hover{color:#15803d}
.rt-tl-a{display:none;padding:0 0 12px 16px}
.rt-tl.open .rt-tl-a{display:block}
.rt-tl-a p:last-child{margin-bottom:0}
.rt-disc{margin-top:26px;font-size:.86rem;color:var(--mu);background:var(--bg);border-radius:10px;padding:12px 16px}
.rt-disc p{margin:0}
/* cross table */
.rt-more{margin-top:24px;background:#fff;border-radius:18px;padding:22px 26px;box-shadow:0 2px 12px rgba(13,59,46,.07)}
.rt-more-t{font:800 1.3rem var(--hd);color:var(--ink);margin:0 0 12px}
.rt-more-wrap{overflow-x:auto}
.rt-more-table{width:100%;border-collapse:collapse;min-width:520px}
.rt-more-table th{text-align:left;font:700 .75rem var(--hd);text-transform:uppercase;letter-spacing:.08em;color:var(--mu);padding:6px 10px;border-bottom:2px solid var(--pitch)}
.rt-more-table td{padding:12px 10px;border-bottom:1px solid var(--ln);font-size:.95rem}
.rt-more-table td:first-child a{font-weight:700;color:var(--ink);text-decoration:none}
.rt-more-table td:first-child a:hover{color:#15803d}
.rt-more-table td:last-child a{display:grid;place-items:center;width:34px;height:34px;border-radius:8px;background:var(--lime);color:var(--pitch);text-decoration:none;font-weight:800}
/* right column */
.rt-right{display:flex;flex-direction:column;gap:18px;align-self:start;position:sticky;top:20px}
.rt-widget{background:#fff;border-radius:16px;padding:18px;box-shadow:0 2px 12px rgba(13,59,46,.07)}
.rt-widget-t{font:800 1rem var(--hd);color:var(--ink);margin:0 0 12px}
.rt-rank{background:var(--pitch);color:#fff}
.rt-rank .rt-widget-t{color:var(--lime)}
.rt-rank ol{list-style:none;margin:0 0 10px;padding:0}
.rt-rank li{display:flex;align-items:center;gap:12px;padding:9px 0;border-bottom:1px solid rgba(255,255,255,.12);font:700 1rem var(--hd)}
.rt-rank li b{width:34px;height:34px;display:grid;place-items:center;border-radius:8px;background:rgba(163,230,53,.15);color:var(--lime)}
.rt-rank li:first-child b{background:var(--lime);color:var(--pitch)}
.rt-rank li img{margin-left:auto;height:14px;width:auto}
.rt-rank small{font-size:.78rem;color:#a7c4b8}
.rt-thumbs{display:flex;flex-direction:column;gap:10px}
.rt-thumbs a{display:grid;grid-template-columns:72px 1fr;gap:10px;align-items:center;text-decoration:none;color:var(--ink);font:700 .92rem var(--hd)}
.rt-thumbs img{width:72px;height:52px;object-fit:cover;border-radius:8px}
.rt-widget--lic p{margin:0;font-size:.88rem;display:flex;gap:8px}
.rt-widget--lic svg{flex:none;color:#15803d;margin-top:3px}
/* footer 4-col */
.rt-foot{background:var(--pitch3);color:#a7c4b8;font-size:.92rem}
.rt-foot-grid{max-width:1400px;margin:0 auto;display:grid;grid-template-columns:1.3fr 1fr 1.2fr 1.2fr;gap:30px;padding:40px 28px 24px}
.rt-foot-grid img{width:200px;margin-bottom:10px}
.rt-foot-grid p{margin:0 0 8px}
.rt-foot-t{font:800 .85rem var(--hd);text-transform:uppercase;letter-spacing:.1em;color:var(--lime);margin:0 0 10px !important}
.rt-foot-grid a{display:block;color:#e0f2e9;text-decoration:none;margin-bottom:6px}
.rt-foot-grid a:hover{color:var(--lime)}
.rt-foot-bar{max-width:1400px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;padding:16px 28px 26px;border-top:1px solid #1d4d3e}
.rt-badges{display:flex;flex-wrap:wrap;gap:8px}
.rt-badges img{height:34px;width:auto}
/* mobile tab bar */
.rt-tabbar{display:none}
.rt-up{position:fixed;right:18px;bottom:18px;z-index:40;width:46px;height:46px;border-radius:12px;border:2px solid var(--lime);background:var(--pitch);color:var(--lime);cursor:pointer;opacity:0;visibility:hidden;transition:.25s}
.rt-up.show{opacity:1;visibility:visible}
@media (max-width:1200px){
  .rt-layout{grid-template-columns:210px minmax(0,1fr)}
  .rt-right{grid-column:2;position:static}
}
@media (max-width:860px){
  .rt-top-tag{display:none}
  .rt-layout{grid-template-columns:minmax(0,1fr);padding:16px 12px 30px;gap:18px}
  .rt-left{display:none}
  .rt-right{grid-column:1}
  .rt-pitch{padding:26px 20px 22px}
  .rt-content{padding:20px 18px 24px}
  .rt-calc-fields{grid-template-columns:repeat(3,minmax(0,1fr))}
  .rt-calc-out{grid-template-columns:1fr}
  .rt-foot-grid{grid-template-columns:1fr 1fr;padding:30px 18px 16px}
  .rt-foot-grid>div:first-child{grid-column:1/-1}
  .rt-foot{padding-bottom:70px}
  .rt-tabbar{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;left:0;right:0;bottom:0;z-index:50;background:var(--pitch3);border-top:3px solid var(--lime);padding:6px 4px calc(6px + env(safe-area-inset-bottom))}
  .rt-tabbar a{display:flex;flex-direction:column;align-items:center;gap:2px;color:#a7c4b8;text-decoration:none;font:700 .68rem/1.2 var(--hd);text-align:center;padding:4px 2px}
  .rt-tabbar a.cur{color:var(--lime)}
  .rt-up{bottom:82px}
  .rt-more-table{min-width:0}
  .rt-more-table thead{display:none}
  .rt-more-table tr{display:grid;grid-template-columns:1fr auto;gap:2px 10px;padding:10px 0;border-bottom:1px solid var(--ln)}
  .rt-more-table td{border:0;padding:0}
  .rt-more-table td:first-child{grid-column:1}
  .rt-more-table td:nth-child(2),.rt-more-table td:nth-child(3){grid-column:1;font-size:.82rem;color:var(--mu)}
  .rt-more-table td:last-child{grid-column:2;grid-row:1 / span 3;align-self:center}
  body{font-size:16.5px}
}