.gav-bookb *{box-sizing:border-box}
.gav-bookb{margin:0;background:#f7f5f0;color:#232321;font:17px/1.8 -apple-system,BlinkMacSystemFont,"PingFang TC",sans-serif}
.gav-bookb h1,.gav-bookb h2,.gav-bookb h3,.gav-bookb p{margin:0}
.gav-bookb h1,.gav-bookb h2,.gav-bookb .serif{font-family:"Songti TC","Noto Serif TC",serif;font-weight:600}
.gav-bookb h1{font-size:52px;line-height:1.3}
.gav-bookb h2{font-size:34px;line-height:1.45}
.gav-bookb .wrap{max-width:1120px;margin:auto;padding:70px 0}
.gav-bookb .eyebrow{font-size:12px;letter-spacing:3px;color:#4f6b5c;margin-bottom:14px}
.gav-bookb .hero{display:grid;grid-template-columns:1.1fr 1fr;gap:50px;align-items:center}
.gav-bookb .book{height:420px;position:relative;display:flex;align-items:center;justify-content:center;background:radial-gradient(ellipse,#ebe6dc,transparent 67%)}
.gav-bookb .book img{width:410px;height:410px;object-fit:contain;filter:drop-shadow(15px 22px 15px #16241c20)}

.gav-bookb .say{font:28px/1.55 "Songti TC",serif;margin:22px 0 30px;color:#3b3f47}
.gav-bookb .price{font:600 22px Georgia,serif;margin-bottom:12px}
.gav-bookb .todo{background:#fff4c9;padding:0 6px;border-radius:3px;color:#8a7650}
.gav-bookb .btn{background:#20231f;color:#fff;border:0;font:inherit;font-weight:600;padding:13px 26px;border-radius:3px}
.gav-bookb .trial{background:none;border:1px solid #20231f;font:inherit;font-weight:600;padding:12px 24px;border-radius:3px;margin-left:10px}
.gav-bookb .center{text-align:center}
.gav-bookb .center h2{margin-bottom:8px}
.gav-bookb .sub{color:#77776f;font-size:16px}
.gav-bookb .pic{display:block;width:100%;border-radius:10px;box-shadow:0 14px 40px #16241c14;background:#fff}
.gav-bookb .story{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:40px}
.gav-bookb .step .num{font:600 13px Georgia;color:#2b2724;letter-spacing:2px;margin:16px 0 2px}
.gav-bookb .step h3{font:600 20px "Songti TC",serif}
.gav-bookb .pair{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.gav-bookb .pair h2{margin-bottom:10px}
.gav-bookb .white{background:#fff}
.gav-bookb .soft{background:#efebe3}
.gav-bookb .chips{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-top:22px}
.gav-bookb .chip{border:1px solid #c9d6cd;border-radius:20px;padding:6px 16px;font-size:15px;background:#fff}
.gav-bookb .offer{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:36px 40px;background:#fff;border:1px solid #d0dbd3;margin-top:34px}
.gav-bookb .offer h3{font:600 26px "Songti TC",serif}
.gav-bookb .wall{columns:3;column-gap:22px;margin-top:40px}
.gav-bookb .page{break-inside:avoid;margin-bottom:26px;background:#fff;padding:10px 10px 14px;border-radius:6px;box-shadow:0 10px 30px #16241c18}
.gav-bookb .page:nth-child(odd){transform:rotate(-1deg)}
.gav-bookb .page:nth-child(even){transform:rotate(1deg)}
.gav-bookb .page img{width:100%;display:block;border-radius:3px}
.gav-bookb .page p{font:600 16px "Songti TC",serif;margin-top:10px;padding-left:4px}
.gav-bookb .page small{display:block;font:12px sans-serif;color:#8a8f99;padding-left:4px}
@media(max-width:700px){.gav-bookb{font-size:16px}.gav-bookb .wrap{padding:40px 22px}.gav-bookb h1{font-size:38px}.gav-bookb h2{font-size:27px}.gav-bookb .hero,.gav-bookb .pair,.gav-bookb .story{grid-template-columns:1fr;gap:26px}.gav-bookb .book{height:270px}.gav-bookb .book img{width:270px;height:270px}.gav-bookb .hero .book{grid-row:2}.gav-bookb .say{font-size:22px;margin:16px 0 22px}.gav-bookb .btn{width:100%}.gav-bookb .trial{width:100%;margin:10px 0 0}.gav-bookb .offer{flex-direction:column;align-items:stretch;padding:26px}.gav-bookb .wall{columns:1}.gav-bookb .pair .pic{order:2}}
.gav-bookb .mapm{display:none}
@media(max-width:700px){.gav-bookb .map-img{display:none}.gav-bookb .mapm{display:block;text-align:left;margin-top:26px;background:#faf8f2;border-radius:12px;padding:22px 18px;box-shadow:0 10px 30px #1c1a1812}.gav-bookb .mapm ol{list-style:none;margin:0;padding:0;position:relative}.gav-bookb .mapm ol:before{content:"";position:absolute;left:15px;top:14px;bottom:14px;width:2px;background:#cdb88f}.gav-bookb .mapm li{position:relative;padding:0 0 18px 46px}.gav-bookb .mapm li:last-child{padding-bottom:0}.gav-bookb .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-bookb .mapm .t{font-size:17px;font-weight:600;line-height:32px}.gav-bookb .mapm li.hot .n{background:#2b2724;border-color:#2b2724;color:#fff}.gav-bookb .mapm li.hot .t{color:#2b2724}.gav-bookb .mapm .flag{display:inline-block;font-size:12px;color:#fff;background:#2b2724;border-radius:3px;padding:0 7px;margin-left:8px;vertical-align:2px;line-height:20px}.gav-bookb .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-bookb .mapm .br b{color:#8a7650;font-weight:600}.gav-bookb .mapm .br small{display:block;color:#8a8f99;font-size:12.5px}.gav-bookb .mapm .foot{margin-top:18px;font-size:13px;color:#6f6a5e;background:#efeadf;border-radius:6px;padding:10px 12px;line-height:1.6}}
.gav-bookb .btn.light{background:#fff;color:#1c1a18}
.gav-bookb .eA{position:relative;background:#1c1a18}
.gav-bookb .eA>img{display:block;width:100%;height:760px;object-fit:cover;object-position:60% 50%}
.gav-bookb .eA-in{position:absolute;inset:0;max-width:1120px;margin:auto;display:flex;flex-direction:column;justify-content:flex-end;align-items:flex-start;padding:50px 0}
.gav-bookb .glass{width:430px;background:rgba(28,26,24,.5);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-bookb .glass .k{font:18px/1.6 "Songti TC",serif;color:#e9dcb4}
.gav-bookb .glass h3{font:600 30px/1.4 "Songti TC",serif;margin:6px 0 4px}
.gav-bookb .glass .meta{font-size:13px;color:#e4ddd0}
.gav-bookb .glass .row{display:flex;align-items:center;justify-content:space-between;margin-top:22px}
.gav-bookb .glass .price{margin:0;color:#fff}
.gav-bookb .hero .book{--cover-top:100px}
.gav-bookb .free{color:#b5532e}
.gav-bookb .people{position:relative}
.gav-bookb .people img{display:block;width:100%;height:560px;object-fit:cover;object-position:50% 45%}
.gav-bookb .people .cap{position:absolute;left:max(5%,calc((100% - 1120px)/2));bottom:48px;color:#fff;text-shadow:0 2px 18px rgba(0,0,0,.55)}
.gav-bookb .people .cap h2{color:#fff}
.gav-bookb .people .cap p{color:#f1ede5;font-size:16px}
.gav-bookb .duo{display:grid;grid-template-columns:.8fr 1.2fr;gap:26px;margin-top:40px;align-items:stretch}
.gav-bookb .duo figure{margin:0}
.gav-bookb .duo img{width:100%;height:100%;max-height:520px;object-fit:cover;border-radius:10px;display:block}
.gav-bookb .duo figcaption{font:600 17px "Songti TC",serif;margin-top:12px}
@media(max-width:700px){.gav-bookb .hero .book{grid-row:1;height:230px}.gav-bookb .hero .book img{width:230px;height:230px}.gav-bookb .hero .cover-title{top:58px;width:100px;font-size:14px}.gav-bookb .hero{gap:0}.gav-bookb .people img{height:420px;object-position:62% 50%}.gav-bookb .people .cap{left:22px;right:22px;bottom:26px}.gav-bookb .duo{grid-template-columns:1fr;gap:22px}.gav-bookb .duo img{max-height:380px}.gav-bookb .eA>img{height:620px;object-position:70% 50%}.gav-bookb .eA-in{padding:22px 16px;align-items:stretch}.gav-bookb .glass{width:auto;padding:22px}.gav-bookb .glass h3{font-size:26px}.gav-bookb .glass .row{flex-direction:column;align-items:stretch;gap:12px}}
.gav-bookb .mapm.all{display:block;text-align:left;margin-top:26px;background:#faf8f2;border-radius:12px;padding:22px 18px;box-shadow:0 10px 30px #1c1a1812}
.gav-bookb .mapm ol{list-style:none;margin:0;padding:0;position:relative}
.gav-bookb .mapm ol:before{content:"";position:absolute;left:15px;top:14px;bottom:14px;width:2px;background:#cdb88f}
.gav-bookb .mapm li{position:relative;padding:0 0 18px 46px}
.gav-bookb .mapm li:last-child{padding-bottom:0}
.gav-bookb .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-bookb .mapm .t{font-size:17px;font-weight:600;line-height:32px}
.gav-bookb .mapm li.hot .n{background:#2b2724;border-color:#2b2724;color:#fff}
.gav-bookb .mapm li.hot .t{color:#2b2724}
.gav-bookb .mapm .flag{display:inline-block;font-size:12px;color:#fff;background:#2b2724;border-radius:3px;padding:0 7px;margin-left:8px;vertical-align:2px;line-height:20px}
.gav-bookb .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-bookb .mapm .br b{color:#8a7650;font-weight:600}
.gav-bookb .mapm .br small{display:block;color:#8a8f99;font-size:12.5px}
.gav-bookb .mapm .foot{margin-top:18px;font-size:13px;color:#6f6a5e;background:#efeadf;border-radius:6px;padding:10px 12px;line-height:1.6}
.gav-bookb .phonepair{grid-template-columns:.7fr 1.3fr}
.gav-bookb .phonepair .pic{max-height:560px;object-fit:cover}
@media(max-width:700px){.gav-bookb .phonepair{grid-template-columns:1fr}.gav-bookb .phonepair .pic{max-height:420px;order:2}}
.gav-bookb .phonepair{grid-template-columns:1fr 1fr;gap:60px}
.gav-bookb .phonepair .pic{max-height:none;height:640px;width:100%;object-fit:cover;object-position:50% 40%}
.gav-bookb .phonepair h2{font-size:42px}
.gav-bookb .phonepair .sub{font-size:18px}
.gav-bookb .wall{columns:2;column-gap:30px}
.gav-bookb .wall .page p{font-size:19px}
.gav-bookb .wall .page small{font-size:13px}
.gav-bookb .steps{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;margin-top:40px;text-align:left}
.gav-bookb .steps div{background:#fff;border:1px solid #d7e0da;border-radius:10px;padding:22px 20px;position:relative}
.gav-bookb .steps b{display:block;font:600 34px Georgia,serif;color:#b8a37a;line-height:1}
.gav-bookb .steps h3{font:600 19px/1.45 "Songti TC",serif;margin:12px 0 8px}
.gav-bookb .steps p{font-size:14px;color:#62635b;line-height:1.7}
.gav-bookb .steps .hot{background:#1c1a18;border-color:#1c1a18}
.gav-bookb .steps .hot b{color:#e9dcb4}
.gav-bookb .steps .hot h3{color:#fff}
.gav-bookb .steps .hot p{color:#e4ddd0}
.gav-bookb .steps .hot em{display:inline-block;font-style:normal;font-size:12px;background:#e9dcb4;color:#1c1a18;border-radius:3px;padding:0 7px;margin-top:10px}
.gav-bookb .mapm.all{display:none}
@media(max-width:700px){.gav-bookb .phonepair .pic{height:420px}.gav-bookb .phonepair h2{font-size:28px}.gav-bookb .wall{columns:1}.gav-bookb .steps{display:none}.gav-bookb .mapm.all{display:block}}
@media(max-width:700px){.gav-bookb .mapm.all{margin:26px auto 0;background:#f7f5ee;border-radius:12px;padding:22px 18px;box-shadow:0 10px 30px #1c1a1812}}
.gav-bookb .phonepair h2{font-size:46px;line-height:1.4}
.gav-bookb .phonepair .sub{font-size:19px;margin-top:10px}
@media(max-width:700px){.gav-bookb .phonepair h2{font-size:28px}.gav-bookb .phonepair .sub{font-size:16px}}
.gav-bookb a.btn,.gav-bookb a.trial{display:inline-block;text-decoration:none;text-align:center}.gav-bookb a.btn{color:#fff}.gav-bookb a.btn.light{color:#1c1a18}.gav-bookb a.trial{color:#20231f}
.gav-bookb{scroll-behavior:smooth}

@media(max-width:700px){.gav-bookb .phonepair{grid-template-columns:1fr;gap:28px}}

/* Series map tiles (from Codex page), three case tiles. */
.gav-bookb .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-bookb .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-bookb .mapB .no{font:600 54px/1 Georgia,serif;color:#c9a85c}
.gav-bookb .mapB li b{margin-top:auto;padding-top:18px;font:600 22px/1.35 "Songti TC",serif;color:#232321}
.gav-bookb .mapB li small{margin-top:6px;font-size:14px;color:#8a8f99}
.gav-bookb .mapB li.hot{background:#1a2234;box-shadow:0 18px 44px #1a223440}
.gav-bookb .mapB li.hot .no{color:#e0c47e}
.gav-bookb .mapB li.hot b{color:#fff;order:2}
.gav-bookb .mapB li.hot small{color:#aab3c5;order:3}
.gav-bookb .mapB li.hot small.go{color:#e0c47e;font-weight:600;order:1;margin:10px 0 0}
.gav-bookb .mapB li.later{background:transparent;box-shadow:none;padding:12px 8px;gap:12px}
.gav-bookb .mapB li.later .k{font-weight:600;color:#a8843a;font-size:15px}
.gav-bookb .mapB li.later p{margin:0;display:flex;justify-content:space-between;gap:10px;border-bottom:1px solid #e6e1d6;padding-bottom:8px}
.gav-bookb .mapB li.later p b{padding:0;margin:0;font:500 16px/1.4 sans-serif;color:#4a4d55}
.gav-bookb .mapB li.later p small{margin:0;white-space:nowrap}
.gav-bookb .mapB .tiles{grid-template-columns:1fr 1fr;gap:12px;margin-top:36px}
.gav-bookb .mapB li{min-height:130px;padding:18px}
.gav-bookb .mapB .no{font-size:38px}
.gav-bookb .mapB li b{font-size:18px}
.gav-bookb .mapB li.later{grid-column:1/-1}
.gav-bookb .mapB .tiles.three{grid-template-columns:repeat(3,1fr);max-width:900px;margin-left:auto;margin-right:auto}
@media(max-width:700px){
.gav-bookb .mapB .tiles{grid-template-columns:1fr 1fr;gap:12px;margin-top:36px}
.gav-bookb .mapB li{min-height:130px;padding:18px}
.gav-bookb .mapB .no{font-size:38px}
.gav-bookb .mapB li b{font-size:18px}
.gav-bookb .mapB li.later{grid-column:1/-1}
}
@media(max-width:700px){.gav-bookb .mapB .tiles.three{grid-template-columns:1fr}}
/* 溝通課 office photo: keep the face in frame, darken behind the caption for legibility over the bright window. */
.gav-bookb .people img{object-position:50% 22%}
.gav-bookb .people::after{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,rgba(20,18,16,.62) 0%,rgba(20,18,16,.25) 42%,transparent 65%),linear-gradient(0deg,rgba(20,18,16,.5),transparent 50%)}
.gav-bookb .people .cap{z-index:1}
@media(max-width:700px){.gav-bookb .people img{object-position:62% 22%}}
/* Cover image carries no title; overlay it like the other series pages. */
.gav-bookb .cover-title{position:absolute;top:104px;left:50%;transform:translateX(-40%);width:190px;text-align:center;color:#d9bd72;font:23px/1.5 "Songti TC",serif;pointer-events:none}
@media(max-width:700px){.gav-bookb .hero .cover-title{top:58px;width:110px;font-size:13px}}