.lesson{max-width:1180px;margin:0 auto;padding:0 40px}
.lhero{position:relative;display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:34px;align-items:center;padding:44px 0 26px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:11.5px;font-weight:800;letter-spacing:.13em;text-transform:uppercase;color:var(--pink);background:var(--pink-ghost);border:1px solid #ffc9e0;padding:6px 13px;border-radius:999px}
.eyebrow .d{width:7px;height:7px;border-radius:50%;background:var(--pink)}
.lhero h1{font-size:clamp(29px,3.8vw,46px);font-weight:900;letter-spacing:-.035em;line-height:1.05;margin:16px 0 14px}
.lhero h1 .g{background:linear-gradient(115deg,var(--pink),var(--purple));-webkit-background-clip:text;background-clip:text;color:transparent}
.lhero p{font-size:15.5px;color:var(--ink-soft);line-height:1.62;max-width:540px}
.specchips{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.specchips span{font-family:var(--mono);font-size:11px;font-weight:600;color:var(--ink-soft);background:#f5f5f9;border:1px solid var(--line2);padding:5px 10px;border-radius:8px}
.splitfig{border:1px solid var(--line2);border-radius:20px;background:#fff;box-shadow:var(--shadow-lg);overflow:hidden;position:relative}
.splitfig .dotted{position:absolute;inset:0;opacity:.55;background-image:radial-gradient(var(--dot) 1.1px,transparent 1.1px);background-size:22px 22px}
.splitfig svg{position:relative;width:100%;height:auto;display:block}
@keyframes flow{to{stroke-dashoffset:-13}}
.lsec{padding:52px 0 8px}
.lk{display:inline-flex;align-items:center;gap:8px;font-size:11.5px;font-weight:800;letter-spacing:.13em;text-transform:uppercase;color:var(--pink)}
.lk::before{content:"";width:22px;height:2px;background:var(--pink);border-radius:2px}
.lk.p{color:var(--purple)}.lk.p::before{background:var(--purple)}
.lsec h2{font-size:clamp(24px,3vw,33px);font-weight:900;letter-spacing:-.03em;margin:12px 0 10px;line-height:1.1}
.lsec .lead{font-size:15px;color:var(--muted);max-width:840px;line-height:1.62}
.note{font-size:12.5px;color:var(--muted);margin-top:16px;padding-left:15px;border-left:3px solid var(--pink);line-height:1.5}
.note b{color:var(--ink)}

/* ===== principle cards ===== */
.sbagrid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:22px}
.pcard{border:1px solid var(--line2);border-radius:14px;background:#fff;box-shadow:var(--shadow);padding:16px;transition:.2s}
.pcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#d6bbff}
.pcard .pi{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;color:#fff;margin-bottom:11px}
.pcard .pi svg{width:22px;height:22px}
.pcard h4{font-size:14px;font-weight:800;margin-bottom:6px;letter-spacing:-.01em}
.pcard p{font-size:12.3px;color:var(--muted);line-height:1.5}
.pcard code{font-family:var(--mono);font-size:11px;color:#8b3df0;font-weight:600}

/* ===== NRF discovery flow ===== */
.discover{border:1px solid var(--line2);border-radius:18px;background:#fff;box-shadow:var(--shadow-lg);margin-top:20px;overflow:hidden}
.discover .dh{padding:13px 18px;border-bottom:1px solid var(--line);font-size:12.5px;font-weight:600;color:var(--muted)}
.discover .dh b{color:var(--ink)}
.discover svg{width:100%;height:auto;display:block}
.dflow{fill:none;stroke-width:2.2;stroke-dasharray:6 6;animation:flow 1s linear infinite}

/* ===== React Flow ===== */
.rfmount{border:1px solid var(--line2);border-radius:18px;overflow:hidden;box-shadow:var(--shadow-lg);margin-top:22px;background:#fff}
.rfroot{position:relative;width:100%;height:600px;background:#fff}
#rf-sba{width:100%}
.react-flow__handle{width:7px;height:7px;background:#fff;border:1.6px solid var(--pink);opacity:0}
.react-flow__handle.connectionindicator{opacity:0}
.react-flow__attribution{background:rgba(255,255,255,.7)}
.react-flow__edge-path{stroke-linecap:round}
/* NF node */
.nfx{background:#fff;border:1.7px solid #e2e2ec;border-radius:12px;box-shadow:0 8px 20px -12px rgba(20,20,43,.28);cursor:pointer;transition:border-color .18s,box-shadow .18s,transform .18s;padding:9px 8px 8px;text-align:center;position:relative}
.nfx:hover{transform:translateY(-2px);border-color:#cfcfe0;box-shadow:0 14px 30px -14px rgba(20,20,43,.36)}
.react-flow__node.selected .nfx{border-color:var(--pink);box-shadow:0 0 0 3px rgba(255,0,113,.16),0 16px 34px -16px rgba(255,0,113,.5)}
.nfx.rp{border-style:dashed;border-color:#d5d5e2;background:#fcfcff}
.nfx .ni{width:30px;height:30px;border-radius:9px;display:grid;place-items:center;color:#fff;margin:0 auto 6px}
.nfx .ni svg{width:19px;height:19px}
.nfx .na{font-size:13.5px;font-weight:900;color:#1a192b;letter-spacing:-.02em;line-height:1}
.nfx .nsvc{font-family:var(--mono);font-size:9px;font-weight:700;color:var(--muted);margin-top:3px;letter-spacing:-.02em}
.nfx.rp .nsvc{color:var(--faint);font-weight:600;font-family:var(--font);font-size:9px}
/* SBI bus */
.busbar{width:100%;height:30px;border-radius:9px;background:linear-gradient(90deg,#12c4b8,#7c5cff,#a855f7);position:relative;display:grid;place-items:center;box-shadow:0 12px 26px -12px rgba(124,92,255,.6);overflow:hidden}
.busbar::before{content:"";position:absolute;inset:0;background-image:linear-gradient(90deg,rgba(255,255,255,.5) 42%,transparent 0);background-size:18px 100%;animation:busflow 1.15s linear infinite;opacity:.55}
@keyframes busflow{to{background-position:18px 0}}
.buslbl{position:relative;font-family:var(--mono);font-size:10.5px;font-weight:800;color:#fff;letter-spacing:.03em;text-shadow:0 1px 2px rgba(0,0,0,.28);z-index:2}
.react-flow__node-bus{cursor:default}
/* legend + hint */
.planekey{display:flex;flex-wrap:wrap;gap:16px;margin-top:16px}
.planekey .pk{display:inline-flex;align-items:center;gap:7px;font-size:11.5px;font-weight:700;color:var(--ink-soft)}
.planekey .pk i{width:12px;height:12px;border-radius:4px;flex:0 0 auto}
.rfhint{position:absolute;bottom:12px;left:50%;transform:translateX(-50%);z-index:6;font-family:var(--font);font-size:11.5px;font-weight:600;color:var(--ink-soft);background:rgba(255,255,255,.92);backdrop-filter:blur(6px);border:1px solid var(--line2);border-radius:999px;padding:7px 15px;box-shadow:var(--shadow)}
.rfhint b{color:var(--pink)}
/* detail panel */
.nfdetail{border-top:1px solid var(--line);padding:20px 24px 24px;background:linear-gradient(180deg,#fcfcfe,#fff)}
.nfd-in{animation:nffade .32s cubic-bezier(.2,.7,.2,1)}
@keyframes nffade{from{opacity:0;transform:translateY(7px)}to{opacity:1;transform:none}}
.nfd-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:17px}
.nfd-ic{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;color:#fff;flex:0 0 auto;box-shadow:0 10px 22px -10px rgba(20,20,43,.4)}
.nfd-ic svg{width:28px;height:28px}
.nfd-name{font-size:23px;font-weight:900;letter-spacing:-.025em;line-height:1}
.nfd-full{font-size:12.5px;color:var(--muted);font-weight:600;margin-top:3px}
.nfd-badges{display:flex;gap:7px;margin-left:auto;flex-wrap:wrap}
.nfd-badges span{font-family:var(--mono);font-size:10.5px;font-weight:800;padding:5px 11px;border-radius:8px;letter-spacing:.01em}
.b-svc{background:#eef1ff;color:#4f46e5}.b-cp{background:var(--pink-ghost);color:#e10067}.b-up{background:#efe6ff;color:#8b3df0}
.b-data{background:#eef3ff;color:#3f6fd0}.b-app{background:#fff1e6;color:#c2610c}.b-ctrl{background:#e3f9f5;color:#0a9c92}
.b-radio{background:#ffe3ef;color:#e10067}.b-dev{background:#eef1f5;color:#475569}.b-ext{background:#fff4e0;color:#b45309}
.nfd-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:20px}
.nfd-block h5{font-size:10.5px;font-weight:800;letter-spacing:.09em;text-transform:uppercase;color:var(--faint);margin-bottom:10px}
.nfd-block ul{list-style:none;display:flex;flex-direction:column;gap:7px}
.nfd-block li{font-size:12.6px;color:var(--ink-soft);line-height:1.45;padding-left:16px;position:relative}
.nfd-block li::before{content:"";position:absolute;left:2px;top:7px;width:5px;height:5px;border-radius:50%;background:var(--pink)}
.nfd-ops{display:flex;flex-wrap:wrap;gap:6px}
.nfd-ops code{font-family:var(--mono);font-size:10px;font-weight:600;background:#f4f4f8;border:1px solid var(--line2);color:var(--ink-soft);padding:4px 8px;border-radius:7px}
.nfd-ntn{margin-top:17px;border:1px solid #cdeede;background:linear-gradient(180deg,#f2fdf8,#fff);border-radius:12px;padding:13px 16px;display:flex;gap:12px;align-items:flex-start}
.nfd-ntn .ntag{font-family:var(--mono);font-size:10px;font-weight:800;color:#0a7d4f;background:#daf6e8;border-radius:6px;padding:4px 9px;flex:0 0 auto;margin-top:1px}
.nfd-ntn p{font-size:12.6px;color:#26483a;line-height:1.55}
.nfd-spec{margin-top:12px;font-family:var(--mono);font-size:11px;color:var(--muted)}

/* ===== communication models ===== */
.comms{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:22px}
.commc{border:1px solid var(--line2);border-radius:16px;background:#fff;box-shadow:var(--shadow);padding:18px 20px}
.commc .ch{display:flex;align-items:center;gap:10px;font-weight:800;font-size:15px;margin-bottom:8px}
.commc .tag{font-family:var(--mono);font-size:10px;font-weight:700;padding:2px 8px;border-radius:6px;margin-left:auto}
.commc.d .tag{background:#e3f9f5;color:#0a9c92}.commc.i .tag{background:#efe6ff;color:#8b3df0}
.commc p{font-size:12.8px;color:var(--ink-soft);line-height:1.55}
.commc .mini{margin:12px 0;height:58px;border-radius:11px;background:#fbfbfe;border:1px solid var(--line)}
.commc ul{list-style:none;display:flex;flex-direction:column;gap:6px;margin-top:8px}
.commc li{position:relative;padding-left:18px;font-size:12px;color:var(--muted);line-height:1.45}
.commc li::before{content:"";position:absolute;left:3px;top:7px;width:6px;height:6px;border-radius:50%;background:var(--purple)}

/* ===== slicing ===== */
.snssai{display:flex;gap:0;margin-top:22px;border-radius:14px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line2)}
.snssai .fld{padding:16px 20px;position:relative}
.snssai .sst{background:linear-gradient(135deg,#ff0071,#ff5a9d);color:#fff;flex:0 0 34%}
.snssai .sd{background:linear-gradient(135deg,#7c5cff,#a855f7);color:#fff;flex:1 1 auto}
.snssai .bits{font-family:var(--mono);font-size:10px;font-weight:700;opacity:.85;letter-spacing:.05em}
.snssai .fname{font-size:16px;font-weight:900;margin:3px 0 2px;letter-spacing:-.01em}
.snssai .fdesc{font-size:11.5px;opacity:.92;line-height:1.4}
.slicetbl{margin-top:18px;border:1px solid var(--line2);border-radius:14px;overflow:hidden;box-shadow:var(--shadow)}
.slicetbl table{width:100%;border-collapse:collapse;font-size:13px}
.slicetbl th{background:#faf7ff;text-align:left;padding:11px 15px;font-size:10.5px;font-weight:800;letter-spacing:.07em;text-transform:uppercase;color:var(--faint);border-bottom:1px solid var(--line)}
.slicetbl td{padding:11px 15px;border-bottom:1px solid var(--line);color:var(--ink-soft);vertical-align:middle}
.slicetbl tr:last-child td{border-bottom:0}
.slicetbl .sstn{font-family:var(--mono);font-weight:800;color:#fff;background:var(--pink);border-radius:6px;padding:2px 9px;font-size:12px}
.slicetbl b{color:var(--ink)}
.slicetbl .rel{font-family:var(--mono);font-size:10px;font-weight:700;color:#8b3df0;background:#f2ecff;border-radius:5px;padding:2px 7px}

/* ===== NTN split ===== */
.ntnfig{border:1px solid var(--line2);border-radius:18px;background:#fff;box-shadow:var(--shadow-lg);overflow:hidden;position:relative;margin-top:22px}
.ntnfig .dotted{position:absolute;inset:0;opacity:.5;background-image:radial-gradient(var(--dot) 1.1px,transparent 1.1px);background-size:22px 22px}
.ntnfig svg{position:relative;width:100%;height:auto;display:block}
.ntntbl{margin-top:18px;border:1px solid var(--line2);border-radius:14px;overflow:hidden;box-shadow:var(--shadow)}
.ntntbl table{width:100%;border-collapse:collapse;font-size:12.8px}
.ntntbl th{background:#f6fefb;text-align:left;padding:11px 15px;font-size:10.5px;font-weight:800;letter-spacing:.07em;text-transform:uppercase;color:var(--faint);border-bottom:1px solid var(--line)}
.ntntbl td{padding:10px 15px;border-bottom:1px solid var(--line);color:var(--ink-soft)}
.ntntbl tr:last-child td{border-bottom:0}
.ntntbl b{color:var(--ink);font-family:var(--mono);font-size:12px}
.ntntbl .pin{font-family:var(--mono);font-size:10px;font-weight:800;border-radius:6px;padding:3px 9px;white-space:nowrap}
.ntntbl .pin.grd{background:#eef3ff;color:#3f6fd0}.ntntbl .pin.air{background:#e3f9ee;color:#0a7d4f}

.cites{margin-top:34px;border:1px solid var(--line2);border-radius:14px;background:#fcfcfe;box-shadow:var(--shadow);padding:18px 20px}
.cites h4{font-size:11px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);margin-bottom:12px}
.cites ul{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:8px 22px}
.cites li{font-size:12.5px;color:var(--ink-soft);padding-left:18px;position:relative;line-height:1.45}
.cites li::before{content:"";position:absolute;left:2px;top:7px;width:6px;height:6px;border-radius:2px;background:var(--pink)}
.cites li b{color:var(--ink);font-family:var(--mono);font-size:11.5px}
.lfoot{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;margin:36px 0 60px}
.backbtn{display:inline-flex;align-items:center;gap:10px;border:1px solid var(--line2);border-radius:12px;padding:12px 18px;background:#fff;box-shadow:var(--shadow);font-weight:700;font-size:13.5px;transition:.2s}
.backbtn:hover{border-color:var(--pink);color:var(--pink);transform:translateY(-2px)}
.rv{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.rv.in{opacity:1;transform:none}
@media(max-width:1080px){.lhero{grid-template-columns:1fr;gap:26px}.sbagrid{grid-template-columns:1fr 1fr}.nfd-grid{grid-template-columns:1fr}.comms{grid-template-columns:1fr}.cites ul{grid-template-columns:1fr}}
@media(max-width:680px){.lesson{padding:0 18px}.sbagrid{grid-template-columns:1fr}.rfroot{height:460px}.snssai{flex-direction:column}}

/* ===== NTN deployment explorer (React Flow) ===== */
.ntnexp{border:1px solid var(--line2);border-radius:18px;overflow:hidden;box-shadow:var(--shadow-lg);margin-top:22px;background:#fff}
.ntnroot{position:relative;width:100%;height:560px}
#rf-ntn{width:100%}
.ntnroot .react-flow__attribution{background:rgba(255,255,255,.7)}
.ntnroot .react-flow__handle{opacity:0;width:6px;height:6px;border:0}
.band{width:100%;height:100%;position:relative}
.band.space{background:linear-gradient(180deg,#efebff,#f7f6ff)}
.band.ground{background:linear-gradient(180deg,#eaf6f0,#f6fbf8);border-top:2px dashed #d4cdee}
.band span{position:absolute;right:18px;top:12px;font-family:var(--mono);font-size:10px;font-weight:800;letter-spacing:.16em}
.band.space span{color:#b3abda}.band.ground span{color:#9cc0ac}
.nnx{background:#fff;border:1.7px solid #e2e2ec;border-radius:14px;box-shadow:0 10px 24px -14px rgba(20,20,43,.3);cursor:pointer;transition:.18s;padding:11px 14px;display:flex;align-items:center;gap:11px;min-width:150px}
.nnx:hover{transform:translateY(-2px);border-color:#cfcfe0}
.react-flow__node.selected .nnx{border-color:var(--pink);box-shadow:0 0 0 3px rgba(255,0,113,.16),0 16px 34px -16px rgba(255,0,113,.5)}
.nnx.space{border-color:#d6bbff;background:linear-gradient(180deg,#fdfbff,#fff)}
.nnx .nni{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;color:#fff;flex:0 0 auto}
.nnx .nni svg{width:21px;height:21px}
.nnx .nnt{font-size:14px;font-weight:900;color:#1a192b;letter-spacing:-.02em;line-height:1}
.nnx .nns{font-size:9px;font-weight:600;color:var(--muted);margin-top:2px}
.corebox{background:linear-gradient(180deg,#fff,#fcfcff);border:1.7px solid #e2e2ec;border-radius:14px;box-shadow:0 12px 26px -14px rgba(20,20,43,.32);padding:12px 14px;min-width:214px;cursor:pointer}
.react-flow__node.selected .corebox{border-color:var(--pink);box-shadow:0 0 0 3px rgba(255,0,113,.16)}
.corebox .corehd{font-family:var(--mono);font-size:10px;font-weight:800;color:#7c5cff;letter-spacing:.03em;margin-bottom:9px}
.corebox .corebar{height:11px;border-radius:6px;background:linear-gradient(90deg,#12c4b8,#7c5cff,#a855f7);margin-bottom:10px;position:relative;overflow:hidden}
.corebox .corebar::before{content:"";position:absolute;inset:0;background-image:linear-gradient(90deg,rgba(255,255,255,.55) 42%,transparent 0);background-size:14px 100%;animation:busflow 1.1s linear infinite}
.corebox .corechips{display:flex;gap:5px;flex-wrap:wrap}
.corebox .corechips span{font-family:var(--mono);font-size:9px;font-weight:700;color:var(--ink-soft);background:#f4f4f8;border:1px solid var(--line2);padding:2px 6px;border-radius:6px}
.ntntoggle{background:rgba(255,255,255,.96);backdrop-filter:blur(8px);border:1px solid var(--line2);border-radius:13px;box-shadow:var(--shadow);padding:10px 11px}
.ntntoggle .lbl{font-size:9.5px;font-weight:800;letter-spacing:.07em;text-transform:uppercase;color:var(--faint);margin:1px 3px 8px}
.ntntoggle .seg{display:flex;gap:5px}
.ntntoggle .seg button{font-size:11.5px;font-weight:800;padding:8px 12px;border:1px solid var(--line2);border-radius:9px;background:#fff;color:var(--muted);cursor:pointer;transition:.15s;font-family:var(--font)}
.ntntoggle .seg button:hover{border-color:var(--pink);color:var(--pink)}
.ntntoggle .seg button.on{background:linear-gradient(135deg,var(--pink),var(--purple));color:#fff;border-color:transparent;box-shadow:0 4px 12px -4px rgba(255,0,113,.5)}
.ntninfo{border-top:1px solid var(--line);padding:16px 20px;display:flex;gap:14px;align-items:flex-start;background:linear-gradient(180deg,#fcfcfe,#fff)}
.ntninfo .mtag{font-family:var(--mono);font-size:10.5px;font-weight:800;color:#fff;background:linear-gradient(135deg,var(--pink),var(--purple));border-radius:8px;padding:7px 12px;flex:0 0 auto;white-space:nowrap}
.ntninfo .mtxt{font-size:13px;color:var(--ink-soft);line-height:1.55}
.ntninfo .mtxt b{color:var(--ink)}
.ntninfo .mpath{font-family:var(--mono);font-size:11px;color:#8b3df0;margin-top:6px;font-weight:600}
.npop{position:absolute;top:70px;right:14px;width:248px;z-index:14;background:#fff;border:1px solid var(--line2);border-radius:15px;box-shadow:var(--shadow-lg);overflow:hidden;animation:pop .32s cubic-bezier(.2,.9,.3,1.25)}
.npop .nph{display:flex;align-items:center;gap:10px;padding:12px 14px;border-bottom:1px solid var(--line)}
.npop .npi{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;color:#fff}
.npop .npi svg{width:20px;height:20px}
.npop .npn{font-size:15px;font-weight:900;letter-spacing:-.02em;line-height:1}
.npop .npf{font-size:9.5px;font-weight:600;color:var(--muted)}
.npop .npx{margin-left:auto;width:24px;height:24px;border:0;background:#f3f3f8;border-radius:8px;cursor:pointer;color:var(--muted);font-weight:800;align-self:flex-start}
.npop .npx:hover{background:var(--pink);color:#fff}
.npop .npb{padding:12px 14px;font-size:12.3px;color:var(--ink-soft);line-height:1.5}
.rfhint2{position:absolute;bottom:12px;left:50%;transform:translateX(-50%);z-index:6;font-size:11px;font-weight:600;color:var(--ink-soft);background:rgba(255,255,255,.9);border:1px solid var(--line2);border-radius:999px;padding:6px 14px;box-shadow:var(--shadow)}

/* ===== interface-map hub in the NF detail card ===== */
.nfd-viz{display:grid;grid-template-columns:1.15fr 1fr;gap:18px;margin-bottom:18px}
.ifhub{border:1px solid var(--line2);border-radius:14px;background:#fff;box-shadow:var(--shadow);position:relative;overflow:hidden}
.ifhub .dots{position:absolute;inset:0;background-image:radial-gradient(var(--dot) 1.1px,transparent 1.1px);background-size:20px 20px;opacity:.5}
.ifhub .htitle{position:absolute;top:10px;left:14px;font-family:var(--mono);font-size:9.5px;font-weight:800;letter-spacing:.06em;color:var(--faint);z-index:2}
.ifhub svg{position:relative;width:100%;height:auto;display:block}
.hubwire{animation:flow 1s linear infinite}
.iflist{display:flex;flex-direction:column;gap:8px}
.iflist h5{font-size:10.5px;font-weight:800;letter-spacing:.09em;text-transform:uppercase;color:var(--faint);margin-bottom:2px}
.ifrow{display:flex;gap:11px;align-items:center;border:1px solid var(--line2);border-radius:11px;padding:9px 11px;background:#fff;box-shadow:var(--shadow);transition:.18s;opacity:0;transform:translateX(10px);animation:ifin .42s forwards}
.ifrow:hover{border-color:var(--pink);transform:translateX(0) translateY(-1px)}
@keyframes ifin{to{opacity:1;transform:none}}
.ifrow .ific{font-family:var(--mono);font-size:10px;font-weight:800;color:#fff;border-radius:7px;padding:5px 8px;flex:0 0 auto;min-width:50px;text-align:center}
.ifrow .ifp{font-size:12.5px;font-weight:800;color:var(--ink);line-height:1.15}
.ifrow .ifd{font-size:11px;color:var(--muted);line-height:1.4;margin-top:2px}

/* ===== slicing fan-out animation ===== */
.slicefan{border:1px solid var(--line2);border-radius:16px;background:#fff;box-shadow:var(--shadow-lg);overflow:hidden;margin-top:22px}
.slicefan .sh{padding:12px 18px;border-bottom:1px solid var(--line);font-size:12.5px;font-weight:600;color:var(--muted)}
.slicefan .sh b{color:var(--ink)}
.slicefan svg{width:100%;height:auto;display:block;background:radial-gradient(var(--dot) 1.1px,transparent 1.1px);background-size:22px 22px}
.slwire{stroke-dasharray:8 8;animation:flow 1.1s linear infinite}
.snssai .fld{overflow:hidden}
.snssai .fld::after{content:"";position:absolute;top:0;left:-45%;width:45%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);animation:sheen 3.6s ease-in-out infinite;pointer-events:none}
@keyframes sheen{0%{left:-45%}55%,100%{left:125%}}
@media(max-width:1080px){.nfd-viz{grid-template-columns:1fr}}
@media(max-width:680px){.ntnroot{height:460px}.ntninfo{flex-direction:column}}
/* evolution timeline (shared) */
.evo{display:flex;gap:0;margin-top:22px;flex-wrap:nowrap;overflow-x:auto;padding:6px 2px 10px}
.evostop{flex:1 1 0;min-width:230px;position:relative;padding-right:34px}
.evostop:last-child{padding-right:0}
.evostop::after{content:"";position:absolute;right:9px;top:34px;width:22px;height:2px;background-image:linear-gradient(90deg,var(--pink) 55%,transparent 0);background-size:8px 2px;animation:flow 1s linear infinite}
.evostop:last-child::after{display:none}
.evocard{border:1px solid var(--line2);border-radius:13px;background:#fff;box-shadow:var(--shadow);padding:15px;height:100%}
.evocard .rel{font-family:var(--mono);font-size:11px;font-weight:700;color:#fff;background:linear-gradient(135deg,var(--pink),var(--purple));padding:3px 9px;border-radius:7px;display:inline-block;margin-bottom:9px}
.evocard h4{font-size:14px;font-weight:800;margin-bottom:5px}
.evocard p{font-size:12px;color:var(--muted);line-height:1.5}
/* ===== NTN module shared: trainer notes + tables ===== */
.trainer{border:1px solid #2a2740;border-radius:16px;background:linear-gradient(180deg,#1b1a2e,#232037);box-shadow:var(--shadow-lg);padding:18px 20px;margin-top:22px}
.trainer .th{font-family:var(--mono);font-size:10px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:#ffd166;display:flex;align-items:center;gap:8px;margin-bottom:13px}
.trainer .tgrid{display:grid;grid-template-columns:1fr 1fr;gap:13px}
.trainer .ti{border-left:3px solid #ff5a9d;padding-left:12px}
.trainer .ti .tl{font-family:var(--mono);font-size:9px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:#a49ecb;margin-bottom:3px}
.trainer .ti p{font-size:12.6px;color:#dbd8ec;line-height:1.5}
.trainer .ti p b{color:#fff}
@media(max-width:800px){.trainer .tgrid{grid-template-columns:1fr}}
.dtbl{margin-top:20px;border:1px solid var(--line2);border-radius:14px;overflow:hidden;box-shadow:var(--shadow);overflow-x:auto}
.dtbl table{width:100%;border-collapse:collapse;font-size:12.7px;min-width:600px}
.dtbl th{background:#faf7ff;text-align:left;padding:11px 14px;font-size:9.5px;font-weight:800;letter-spacing:.05em;text-transform:uppercase;color:var(--faint);border-bottom:1px solid var(--line);white-space:nowrap}
.dtbl td{padding:11px 14px;border-bottom:1px solid var(--line);color:var(--ink-soft);vertical-align:top;line-height:1.45}
.dtbl tr:last-child td{border-bottom:0}
.dtbl td b{color:var(--ink)}
.dtbl .lyc{font-family:var(--mono);font-size:10px;font-weight:800;color:#fff;border-radius:5px;padding:2px 7px;white-space:nowrap;display:inline-block}
.cardgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:20px}
.ncc{border:1px solid var(--line2);border-radius:14px;background:#fff;box-shadow:var(--shadow);padding:16px;transition:.2s}
.ncc:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#d6bbff}
.ncc .ci{width:36px;height:36px;border-radius:10px;display:grid;place-items:center;color:#fff;margin-bottom:10px}
.ncc .ci svg{width:21px;height:21px}
.ncc h4{font-size:14px;font-weight:800;margin-bottom:6px;letter-spacing:-.01em}
.ncc p{font-size:12.3px;color:var(--muted);line-height:1.5}
@media(max-width:1080px){.cardgrid{grid-template-columns:1fr 1fr}}
@media(max-width:680px){.cardgrid{grid-template-columns:1fr}}