:root{--green:#0b5d4b;--green-2:#0f7a62;--green-soft:#e8f3ef;--ink:#14202b;--body:#2b3a47;--muted:#55636f;--line:#e3e8ec;--bg:#f3f6f7;--white:#fff;
--serif:Georgia,'Times New Roman',serif;--sans:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{font-family:var(--serif);color:var(--body);background:var(--bg);line-height:1.7}
a{color:inherit;text-decoration:none}
.sans{font-family:var(--sans)}
.container{max-width:1120px;margin:0 auto;padding:0 20px}
.utility{background:var(--ink);color:#c5d0d8;font-family:var(--sans);font-size:12px}
.utility .container{display:flex;justify-content:space-between;align-items:center;height:34px}
.utility .right{display:flex;gap:18px}
.utility a:hover{color:#fff}
header.site{background:var(--white);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;height:76px}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{width:42px;height:42px;border-radius:10px;background:linear-gradient(135deg,var(--green),var(--green-2));display:flex;align-items:center;justify-content:center}
.brand-mark svg{width:24px;height:24px;fill:none;stroke:#fff;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.brand-name{font-family:var(--sans);font-weight:800;font-size:24px;letter-spacing:-.6px;color:var(--ink);line-height:1}
.brand-name span{color:var(--green-2)}
.brand-tag{font-family:var(--sans);font-size:11px;color:var(--muted);letter-spacing:.8px;text-transform:uppercase;margin-top:3px}
nav.cats{background:var(--white);border-bottom:1px solid var(--line);overflow-x:auto;white-space:nowrap;-webkit-overflow-scrolling:touch}
nav.cats .container{display:flex;gap:4px}
nav.cats a{font-family:var(--sans);font-size:13px;font-weight:600;color:var(--body);padding:13px 14px;border-bottom:3px solid transparent}
nav.cats a:hover{color:var(--green)}
nav.cats a.on{color:var(--green);border-color:var(--green)}
.layout{max-width:820px;margin:0 auto;padding:16px 20px 48px}
article.card,.page{background:var(--white);border:1px solid var(--line);border-radius:10px;padding:30px 34px 34px}
.kicker{font-family:var(--sans);font-size:12px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--green-2);text-align:center}
h1{font-size:30px;line-height:1.2;letter-spacing:-.6px;color:var(--ink);margin:6px 0 16px;font-weight:700;text-align:center}
.page h1{text-align:left;margin-top:0}
.page .kicker{text-align:left}
.page h2{font-size:22px;line-height:1.3;color:var(--ink);margin:26px 0 8px}
.page p{font-size:17.5px;margin-bottom:14px}
.page ul{margin:0 0 14px 22px;font-size:17px}
.page li{margin-bottom:6px}
.page .lead{font-size:19px;color:#445564;margin-bottom:20px}
.byline{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;padding:14px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:8px;font-family:var(--sans)}
.byline .who{display:flex;align-items:center;gap:12px}
.avatar{width:42px;height:42px;border-radius:50%;background:var(--green-soft);color:var(--green);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;flex:none}
.byline b{display:block;font-size:14px;color:var(--ink)}
.byline small{font-size:12px;color:var(--muted)}
.reviewed{display:flex;align-items:center;gap:7px;font-size:12px;color:var(--green);font-weight:600;background:var(--green-soft);padding:6px 12px;border-radius:20px}
.reviewed svg{width:14px;height:14px;fill:none;stroke:currentColor;stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round}
.video-wrap{background:linear-gradient(180deg,#f2f7f5,#fff);border:1px solid var(--line);border-radius:12px;padding:16px 16px 12px;text-align:center;margin-bottom:22px}
.video-label{display:inline-flex;align-items:center;gap:8px;font-family:var(--sans);font-size:12px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;color:var(--green);margin-bottom:10px}
.video-label i{width:8px;height:8px;border-radius:50%;background:var(--green-2);display:inline-block;box-shadow:0 0 0 4px rgba(15,122,98,.18)}
vturb-smartplayer{width:100% !important;max-width:520px !important;margin:0 auto !important;border-radius:10px;overflow:hidden}
.video-cap{font-family:var(--sans);font-size:12px;color:var(--muted);margin-top:12px}
.section-title{font-family:var(--sans);font-size:13px;font-weight:800;letter-spacing:1px;text-transform:uppercase;color:var(--green);margin:34px 0 14px;padding-bottom:8px;border-bottom:2px solid var(--green)}
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.tile{background:var(--white);border:1px solid var(--line);border-radius:10px;padding:18px;font-family:var(--sans);display:block;transition:border-color .15s,box-shadow .15s}
.tile:hover{border-color:var(--green-2);box-shadow:0 4px 14px rgba(11,93,75,.10)}
.tile small{display:block;font-size:11px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;color:var(--green-2);margin-bottom:6px}
.tile b{display:block;font-size:16px;line-height:1.35;color:var(--ink)}
.toc{font-family:var(--sans);background:#f7faf9;border:1px solid var(--line);border-radius:8px;padding:14px 18px;margin:8px 0 8px}
.toc b{font-size:12px;letter-spacing:.8px;text-transform:uppercase;color:var(--green)}
.toc ul{list-style:none;margin:8px 0 0}
.toc li{font-size:15px;margin:6px 0}
.toc a{color:var(--green);font-weight:600}
.toc a:hover{text-decoration:underline}
.art{padding-top:8px;border-top:1px solid var(--line);margin-top:26px}
.art h2{margin-top:18px}
.backtop{font-family:var(--sans);font-size:13px;color:var(--green);font-weight:600}
.ph{background:#fff8e1;padding:0 4px;border-radius:3px}
footer{background:var(--ink);color:#b9c6d0;font-family:var(--sans);font-size:12.5px;line-height:1.75;padding:40px 0 30px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:34px;padding-bottom:26px;border-bottom:1px solid #2a3a48}
footer h4{color:#fff;font-size:13px;margin-bottom:10px;letter-spacing:.3px}
footer a{display:block;padding:2px 0}
footer a:hover{color:#fff}
.copy{padding-top:18px;font-size:12px;color:#93a4b1}
@media (max-width:860px){.foot-grid{grid-template-columns:1fr 1fr}.foot-grid>div:first-child{grid-column:1/-1}}
@media (max-width:640px){
.container{padding:0 14px}.utility{display:none}.header-inner{height:56px}.brand-mark{width:36px;height:36px}.brand-name{font-size:21px}.brand-tag{display:none}
.layout{padding:10px 12px 36px}article.card,.page{padding:18px 16px 22px;border-radius:8px}
h1{font-size:22px;letter-spacing:-.2px;margin-bottom:12px}.page h1{font-size:25px}.page p{font-size:17px}.page h2{font-size:20px}
.video-wrap{padding:10px 6px 8px;margin-bottom:16px}.video-label{font-size:11px}vturb-smartplayer{max-width:100% !important}
.byline{align-items:flex-start}.grid{grid-template-columns:1fr}.foot-grid{grid-template-columns:1fr}}