@font-face{font-family:"Be Vietnam Pro";font-weight:400;src:url(fonts/BeVietnamPro-Regular.ttf)}
@font-face{font-family:"Be Vietnam Pro";font-weight:600;src:url(fonts/BeVietnamPro-SemiBold.ttf)}
@font-face{font-family:"Be Vietnam Pro";font-weight:700;src:url(fonts/BeVietnamPro-Bold.ttf)}
@font-face{font-family:"Be Vietnam Pro";font-weight:800;src:url(fonts/BeVietnamPro-ExtraBold.ttf)}
:root{--bg:#fbf8f2;--card:#fff;--ink:#1d2430;--mut:#5c6675;--line:#e6dfd0;--ac:#9c2b2b;--ac2:#1f3a5f;--soft:#f3ece0}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.7 "Be Vietnam Pro",system-ui,sans-serif}
a{color:var(--ac2)}
img,svg,iframe{max-width:100%}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.narrow{max-width:760px}
header.top{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
header.top .wrap{display:flex;align-items:center;gap:18px;min-height:60px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--ink);text-decoration:none;font-size:18px}
.brand img{width:36px;height:36px;border-radius:50%}
nav{margin-left:auto;display:flex;gap:4px;flex-wrap:wrap}
nav a{padding:6px 12px;border-radius:8px;text-decoration:none;color:var(--ink);font-weight:600;font-size:15px}
nav a:hover,nav a[aria-current]{background:var(--soft)}
.hero{padding:48px 0 28px}
.hero h1{font-size:clamp(30px,5vw,48px);line-height:1.15;margin:0 0 14px;font-weight:800;letter-spacing:-.5px}
.hero p.lead{font-size:19px;color:var(--mut);max-width:640px;margin:0 0 20px}
.grid2{display:grid;grid-template-columns:1.1fr 1fr;gap:32px;align-items:center}
.btn{display:inline-block;background:var(--ac);color:#fff;padding:11px 22px;border-radius:10px;font-weight:700;text-decoration:none;border:0;font:700 16px "Be Vietnam Pro";cursor:pointer}
.btn.alt{background:#fff;color:var(--ac2);border:2px solid var(--ac2)}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px}
.vid{position:relative;aspect-ratio:16/9;border-radius:12px;overflow:hidden;background:#000}
.vid iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
section{padding:30px 0}
h2{font-size:26px;margin:0 0 14px;font-weight:800}
h3{font-size:19px;margin:22px 0 6px}
.tag{display:inline-block;font-size:13px;font-weight:700;background:var(--soft);padding:3px 10px;border-radius:99px;color:var(--ac)}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px}
.cards .card h3{margin-top:8px}
.muted{color:var(--mut)}
.small{font-size:14px}
.sub{background:var(--ac2);color:#fff;border-radius:16px;padding:28px}
.sub h2{color:#fff}
.sub form{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.sub input[type=email]{flex:1 1 240px;padding:12px 14px;border-radius:10px;border:0;font:400 16px "Be Vietnam Pro"}
.sub .btn{background:#e0b04a;color:#1d2430}
.sub small{opacity:.85;display:block;margin-top:10px}
.note{background:#fff7e0;border:1px solid #ecd68a;border-radius:10px;padding:10px 14px;font-size:14px}
footer{margin-top:40px;background:#fff;border-top:1px solid var(--line);padding:26px 0;font-size:14px;color:var(--mut)}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}
.chips a{background:#fff;border:1px solid var(--line);padding:6px 12px;border-radius:99px;text-decoration:none;font-weight:600;font-size:14px;color:var(--ink)}
.chips a:hover{border-color:var(--ac)}
.map{background:#e9f1f7;border-radius:14px;padding:12px}
.map svg{width:100%;height:auto;display:block}
.legend{display:flex;gap:10px 16px;flex-wrap:wrap;font-size:13px;margin-top:8px}
.legend i{display:inline-block;width:12px;height:12px;border-radius:3px;margin-right:5px;vertical-align:-1px}
.toc a.t{font-variant-numeric:tabular-nums;font-weight:700;color:var(--ac);text-decoration:none}
.toc li{padding:6px 0;border-bottom:1px dashed var(--line);list-style:none}
.toc{padding:0;margin:0}
.chap{margin:34px 0}
.chap h3{font-size:22px;border-left:5px solid var(--ac);padding-left:12px}
.script p{margin:0 0 14px}
details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:4px 18px;margin:10px 0}
summary{cursor:pointer;font-weight:700;padding:12px 0}
.tl{position:relative;margin:0;padding:0 0 0 24px;list-style:none;border-left:3px solid var(--line)}
.tl li{position:relative;padding:0 0 18px 8px}
.tl li::before{content:"";position:absolute;left:-33px;top:7px;width:13px;height:13px;border-radius:50%;background:var(--ac);border:3px solid var(--bg)}
.tl b{color:var(--ac);font-size:18px}
table{border-collapse:collapse;width:100%;font-size:14px;background:#fff}
th,td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
th{background:var(--soft)}
.tbl{overflow-x:auto}
.srcs li{margin:4px 0;font-size:14px;line-height:1.5}
.lic{font-size:12px;font-weight:700;background:var(--soft);padding:1px 7px;border-radius:6px;white-space:nowrap}
.thumb{width:100%;border-radius:12px;display:block}
@media(max-width:760px){.grid2{grid-template-columns:1fr}body{font-size:16px}.hero{padding:28px 0 12px}nav{margin-left:0;width:100%}header.top .wrap{padding-bottom:8px}}
.mapgrid{grid-template-columns:1.3fr 1fr;align-items:start;gap:20px}
.map svg{max-height:420px}
#ban-do p.small{max-width:760px}
@media(max-width:760px){.mapgrid{grid-template-columns:1fr}}
.dd{position:relative}
.dd summary{list-style:none;padding:6px 12px;border-radius:8px;font-weight:600;font-size:15px;cursor:pointer;margin:0}
.dd summary::-webkit-details-marker{display:none}
.dd[open] summary,.dd summary:hover{background:var(--soft)}
details.dd{background:none;border:0;padding:0;margin:0}
.ddlist{position:absolute;right:0;top:100%;width:320px;max-width:88vw;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 8px 24px rgba(0,0,0,.12);padding:8px;display:flex;flex-direction:column}
.ddlist a,.ddlist span{padding:7px 10px;border-radius:8px;font-size:14px;line-height:1.4;text-decoration:none;color:var(--ink)}
.ddlist a{font-weight:700}.ddlist a:hover{background:var(--soft)}
.ddlist .soon{color:#8a93a0}.ddlist em{font-size:12px;color:#a0a8b3;margin-left:4px}
.subwrap{position:sticky;top:60px;z-index:9;background:var(--bg);border-bottom:1px solid var(--line)}.subnav{margin:0 auto;padding:10px 20px;overflow-x:auto;flex-wrap:nowrap;white-space:nowrap}
@media(max-width:760px){.ddlist{right:auto;left:0}}
header.top .wrap{position:relative}
@media(max-width:760px){.dd{position:static}.ddlist{left:20px;right:20px;width:auto;max-width:none}nav > a[href$="phan-1/"],nav > a[href$="phan-2/"]{display:none}nav{gap:0}nav a,.dd summary{padding:6px 9px;font-size:14px}}