.gav-codex *{box-sizing:border-box}
.gav-codex{margin:0;background:#f7f5f0;color:#232321;font:17px/1.8 -apple-system,BlinkMacSystemFont,"PingFang TC",sans-serif}
.gav-codex h1,.gav-codex h2,.gav-codex h3,.gav-codex p{margin:0}
.gav-codex h1,.gav-codex h2,.gav-codex .serif{font-family:"Songti TC","Noto Serif TC",serif;font-weight:600}
.gav-codex h1{font-size:52px;line-height:1.3}
.gav-codex h2{font-size:34px;line-height:1.45}
.gav-codex .wrap{max-width:1120px;margin:auto;padding:70px 0}
.gav-codex .eyebrow{font-size:12px;letter-spacing:3px;color:#5a6a84;margin-bottom:14px}
.gav-codex .hero{display:grid;grid-template-columns:1.1fr 1fr;gap:50px;align-items:center}
.gav-codex .book{height:420px;position:relative;display:flex;align-items:center;justify-content:center;background:radial-gradient(ellipse,#dfe3ea,transparent 67%)}
.gav-codex .book img{width:410px;height:410px;object-fit:contain;filter:drop-shadow(15px 22px 15px #1a223420)}
.gav-codex .cover-title{position:absolute;top:100px;left:50%;transform:translateX(-38%);width:170px;text-align:center;color:#d9bd72;font:25px/1.5 "Songti TC",serif}
.gav-codex .say{font:28px/1.55 "Songti TC",serif;margin:22px 0 30px;color:#3b3f47}
.gav-codex .price{font:600 22px Georgia,serif;margin-bottom:12px}
.gav-codex .todo{background:#fff4c9;padding:0 6px;border-radius:3px;color:#8a7650}
.gav-codex .btn{background:#20231f;color:#fff;border:0;font:inherit;font-weight:600;padding:13px 26px;border-radius:3px}
.gav-codex .trial{background:none;border:1px solid #20231f;font:inherit;font-weight:600;padding:12px 24px;border-radius:3px;margin-left:10px}
.gav-codex .center{text-align:center}
.gav-codex .center h2{margin-bottom:8px}
.gav-codex .sub{color:#77776f;font-size:16px}
.gav-codex .pic{display:block;width:100%;border-radius:10px;box-shadow:0 14px 40px #1a223414;background:#fff}
.gav-codex .story{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:40px}
.gav-codex .step .num{font:600 13px Georgia;color:#2c4a78;letter-spacing:2px;margin:16px 0 2px}
.gav-codex .step h3{font:600 20px "Songti TC",serif}
.gav-codex .pair{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.gav-codex .pair h2{margin-bottom:10px}
.gav-codex .white{background:#fff}
.gav-codex .soft{background:#e9ecf1}
.gav-codex .chips{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-top:22px}
.gav-codex .chip{border:1px solid #c9cfd9;border-radius:20px;padding:6px 16px;font-size:15px;background:#fff}
.gav-codex .offer{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:36px 40px;background:#fff;border:1px solid #d3d8e0;margin-top:34px}
.gav-codex .offer h3{font:600 26px "Songti TC",serif}
.gav-codex .wall{columns:2;column-gap:28px;margin-top:40px}
.gav-codex .page{break-inside:avoid;margin-bottom:26px;background:#fff;padding:10px 10px 14px;border-radius:6px;box-shadow:0 10px 30px #1a223418}
.gav-codex .page:nth-child(odd){transform:rotate(-1deg)}
.gav-codex .page:nth-child(even){transform:rotate(1deg)}
.gav-codex .page img{width:100%;display:block;border-radius:3px}
.gav-codex .page p{font:600 18px "Songti TC",serif;margin-top:10px;padding-left:4px}
.gav-codex .page small{display:block;font:12px sans-serif;color:#8a8f99;padding-left:4px}
@media(max-width:700px){.gav-codex{font-size:16px}.gav-codex .wrap{padding:40px 22px}.gav-codex nav{padding:17px 22px}.gav-codex nav span{display:none}.gav-codex nav b{font-size:25px}.gav-codex h1{font-size:38px}.gav-codex h2{font-size:27px}.gav-codex .hero,.gav-codex .pair,.gav-codex .story{grid-template-columns:1fr;gap:26px}.gav-codex .book{height:270px}.gav-codex .book img{width:270px;height:270px}.gav-codex .cover-title{top:66px;width:115px;font-size:16px}.gav-codex .hero .book{grid-row:2}.gav-codex .say{font-size:22px;margin:16px 0 22px}.gav-codex .btn{width:100%}.gav-codex .trial{width:100%;margin:10px 0 0}.gav-codex .offer{flex-direction:column;align-items:stretch;padding:26px}.gav-codex .wall{columns:1}.gav-codex .note{font-size:11px}.gav-codex .pair .pic{order:2}}
.gav-codex .mapm{display:none}
@media(max-width:700px){.gav-codex .map-img{display:none}.gav-codex .mapm{display:block;text-align:left;margin-top:26px;background:#faf8f2;border-radius:12px;padding:22px 18px;box-shadow:0 10px 30px #1a223412}.gav-codex .mapm ol{list-style:none;margin:0;padding:0;position:relative}.gav-codex .mapm ol:before{content:"";position:absolute;left:15px;top:14px;bottom:14px;width:2px;background:#cdb88f}.gav-codex .mapm li{position:relative;padding:0 0 18px 46px}.gav-codex .mapm li:last-child{padding-bottom:0}.gav-codex .mapm .n{position:absolute;left:0;top:0;width:32px;height:32px;border-radius:50%;background:#fff;border:2px solid #cdb88f;font:600 13px Georgia;color:#8a7650;display:flex;align-items:center;justify-content:center}.gav-codex .mapm .t{font-size:17px;font-weight:600;line-height:32px}.gav-codex .mapm li.hot .n{background:#2f5b45;border-color:#2f5b45;color:#fff}.gav-codex .mapm li.hot .t{color:#2f5b45}.gav-codex .mapm .flag{display:inline-block;font-size:12px;color:#fff;background:#2f5b45;border-radius:3px;padding:0 7px;margin-left:8px;vertical-align:2px;line-height:20px}.gav-codex .mapm .br{margin:8px 0 2px;border:1.5px dashed #cdb88f;border-radius:8px;padding:8px 12px;font-size:14px;line-height:1.5;background:#fff}.gav-codex .mapm .br b{color:#8a7650;font-weight:600}.gav-codex .mapm .br small{display:block;color:#8a8f99;font-size:12.5px}.gav-codex .mapm .foot{margin-top:18px;font-size:13px;color:#6f6a5e;background:#efeadf;border-radius:6px;padding:10px 12px;line-height:1.6}}
.gav-codex .btn.light{background:#fff;color:#1d2a40}
.gav-codex .eA{position:relative;background:#1d2a40}
.gav-codex .eA>img{display:block;width:100%;height:760px;object-fit:cover;object-position:40% 50%}
.gav-codex .eA-in{position:absolute;inset:0;max-width:1120px;margin:auto;display:flex;flex-direction:column;justify-content:flex-end;align-items:flex-end;padding:50px 0}
.gav-codex .glass{width:430px;background:rgba(24,38,64,.46);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid rgba(217,189,114,.55);border-radius:10px;padding:28px 30px;color:#fff;box-shadow:inset 0 1px 0 rgba(255,255,255,.25),0 20px 50px rgba(0,0,0,.25)}
.gav-codex .glass .k{font:18px/1.6 "Songti TC",serif;color:#e9dcb4}
.gav-codex .glass h3{font:600 30px/1.4 "Songti TC",serif;margin:6px 0 4px}
.gav-codex .glass .meta{font-size:13px;color:#cfd6e2}
.gav-codex .glass .row{display:flex;align-items:center;justify-content:space-between;margin-top:22px}
.gav-codex .glass .price{margin:0}
.gav-codex .glass .todo{background:rgba(255,244,201,.9)}
.gav-codex .eB{background:#fff}
.gav-codex .eB .navy{display:grid;grid-template-columns:120px 1fr auto;gap:32px;align-items:center;background:#1d2a40;color:#fff;border-radius:10px;padding:30px 36px;margin-top:-60px;position:relative;width:88%;margin-left:auto;margin-right:auto;box-shadow:0 20px 50px #1a223430}
.gav-codex .eB .mini{width:120px;display:block}
.gav-codex .eB .k{font:17px/1.6 "Songti TC",serif;color:#e9dcb4}
.gav-codex .eB h3{font:600 28px/1.4 "Songti TC",serif;margin:4px 0 8px}
.gav-codex .eB ul{list-style:none;padding:0;margin:0;display:flex;gap:18px;font-size:14px;color:#cfd6e2}
.gav-codex .eB li:before{content:"✓ ";color:#d9bd72}
.gav-codex .eB .buy{text-align:right}
@media(max-width:700px){.gav-codex .eA>img{height:620px;object-position:32% 50%}.gav-codex .eA-in{padding:22px 16px;align-items:stretch}.gav-codex .glass{width:auto;padding:22px}.gav-codex .glass h3{font-size:26px}.gav-codex .glass .row{flex-direction:column;align-items:stretch;gap:12px}.gav-codex .glass .price{text-align:left}.gav-codex .eB .navy{grid-template-columns:84px 1fr;gap:18px;padding:22px;width:auto;margin:-40px 8px 0}.gav-codex .eB .mini{width:84px}.gav-codex .eB ul{flex-direction:column;gap:2px}.gav-codex .eB .buy{grid-column:1/-1;text-align:left}.gav-codex .eB .buy .btn{width:100%}.gav-codex .eB h3{font-size:24px}}
@media(max-width:700px){.gav-codex .hero .book{grid-row:1;height:230px}.gav-codex .hero .book img{width:230px;height:230px}.gav-codex .hero .cover-title{top:58px;width:100px;font-size:14px}.gav-codex .hero{gap:0}}
.gav-codex .candidate-notice{padding:8px 24px;background:#1d2a40;color:#fff;font-size:13px;text-align:center;letter-spacing:1px}
.gav-codex dialog{max-width:420px;border:1px solid #d3d8e0;border-radius:10px;padding:28px}
.gav-codex dialog h2{font-size:24px;margin-bottom:10px}
.gav-codex dialog p{font-size:15px;color:#62635b;margin-bottom:18px}
.gav-codex dialog::backdrop{background:rgba(20,28,44,.45)}
.gav-codex .trial-dlg{border:0;padding:0;width:960px;max-width:90vw;height:86vh;max-height:900px;border-radius:8px;color:#272b25;font:17px/1.85 -apple-system,"PingFang TC",sans-serif;overflow:hidden}
.gav-codex .trial-dlg::backdrop{background:#0008}
.gav-codex .trial-shell{display:flex;flex-direction:column;height:100%}
.gav-codex .trial-head,.gav-codex .trial-foot{padding:16px 28px;background:#f3f5f8;display:flex;justify-content:space-between;align-items:center;gap:20px;flex-shrink:0}
.gav-codex .trial-head{border-bottom:1px solid #dde1e8}
.gav-codex .trial-foot{border-top:1px solid #dde1e8}
.gav-codex .trial-body{padding:30px 40px;overflow:auto;flex:1;min-height:0;overscroll-behavior:contain}
.gav-codex .trial-dlg h2{font:29px/1.4 "Songti TC",serif;margin:0 0 6px}
.gav-codex .trial-lead{color:#62635b}
.gav-codex .trial-dlg p{margin:12px 0}
.gav-codex .trial-dlg small{font-size:12px;color:#75766b}
.gav-codex .trial-fig{width:100%;display:block;border-radius:8px;margin:18px 0 8px;box-shadow:0 8px 24px #1a223412}
.gav-codex .trial-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:34px}
.gav-codex .trial-code{position:relative;background:#f3f5f8;border:1px solid #dde1e8;border-radius:6px;padding:40px 16px 14px}
.gav-codex .trial-code pre{margin:0;white-space:pre-wrap;font:14px/1.75 Menlo,monospace;color:#2b2f36}
.gav-codex .trial-copy{position:absolute;top:8px;right:8px;padding:3px 10px!important;font-size:12px!important}
.gav-codex .trial-quote{padding:16px;border-left:3px solid #2c4a78;background:#eef1f6;margin:22px 0 0}
.gav-codex .trial-dlg button{padding:10px 14px;border:1px solid #c9cfd9;background:#fff;border-radius:4px;cursor:pointer;font:14px sans-serif;color:#262923}
.gav-codex .trial-foot button{background:#20231f;color:#fff;white-space:nowrap}
.gav-codex .trial-close:focus-visible,.gav-codex .trial-foot button:focus-visible,.gav-codex .trial-copy:focus-visible{outline:3px solid #2c4a78;outline-offset:3px}
@media(max-width:700px){.gav-codex .trial-dlg{width:100%;height:100dvh;max-width:100%;max-height:100dvh;margin:0;border-radius:0}.gav-codex .trial-head,.gav-codex .trial-foot{padding:12px 18px}.gav-codex .trial-body{padding:22px}.gav-codex .trial-grid{grid-template-columns:1fr;gap:10px}.gav-codex .trial-dlg h2{font-size:25px}}

.gav-codex a.btn,.gav-codex a.trial{display:inline-block;text-decoration:none;text-align:center}.gav-codex a.btn{color:#fff}.gav-codex a.btn.light{color:#1d2a40}.gav-codex a.trial{color:#20231f}.gav-codex a.btn:hover,.gav-codex a.trial:hover{text-decoration:none}

/* 2026-09-23 Vivi: real-person photo instead of the chat-vs-Codex diagram; learning map = big-number cards (version B). */
.gav-codex .pair.photo{grid-template-columns:1fr 1fr;gap:60px}
.gav-codex .pair.photo .pic{height:640px;object-fit:cover;object-position:50% 35%;border-radius:8px;box-shadow:0 18px 50px #1a223422}
.gav-codex .pair.photo h2{font-size:42px;line-height:1.4}
.gav-codex .pair.photo .sub{font-size:18px}
.gav-codex .mapB .tiles{list-style:none;margin:56px 0 0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;text-align:left}
.gav-codex .mapB li{background:#fff;border-radius:18px;padding:26px 26px 24px;box-shadow:0 12px 34px #1a22340d;min-height:170px;display:flex;flex-direction:column}
.gav-codex .mapB .no{font:600 54px/1 Georgia,serif;color:#c9a85c}
.gav-codex .mapB li b{margin-top:auto;padding-top:18px;font:600 22px/1.35 "Songti TC",serif;color:#232321}
.gav-codex .mapB li small{margin-top:6px;font-size:14px;color:#8a8f99}
.gav-codex .mapB li.hot{background:#1a2234;box-shadow:0 18px 44px #1a223440}
.gav-codex .mapB li.hot .no{color:#e0c47e}
.gav-codex .mapB li.hot b{color:#fff;order:2}
.gav-codex .mapB li.hot small{color:#aab3c5;order:3}
.gav-codex .mapB li.hot small.go{color:#e0c47e;font-weight:600;order:1;margin:10px 0 0}
.gav-codex .mapB li.later{background:transparent;box-shadow:none;padding:12px 8px;gap:12px}
.gav-codex .mapB li.later .k{font-weight:600;color:#a8843a;font-size:15px}
.gav-codex .mapB li.later p{margin:0;display:flex;justify-content:space-between;gap:10px;border-bottom:1px solid #e6e1d6;padding-bottom:8px}
.gav-codex .mapB li.later p b{padding:0;margin:0;font:500 16px/1.4 sans-serif;color:#4a4d55}
.gav-codex .mapB li.later p small{margin:0;white-space:nowrap}
@media(max-width:700px){
.gav-codex .pair.photo{grid-template-columns:1fr;gap:26px}
.gav-codex .pair.photo .pic{height:420px}
.gav-codex .pair.photo h2{font-size:28px}
.gav-codex .mapB .tiles{grid-template-columns:1fr 1fr;gap:12px;margin-top:36px}
.gav-codex .mapB li{min-height:130px;padding:18px}
.gav-codex .mapB .no{font-size:38px}
.gav-codex .mapB li b{font-size:18px}
.gav-codex .mapB li.later{grid-column:1/-1}
}