.book-showroom-v2_page__jZqlM{min-height:100vh;overflow-x:clip;background:#edf8fc;color:#113b54;font-family:PingFang SC,Microsoft YaHei,system-ui,sans-serif}.book-showroom-v2_embedded__plVnr{position:relative;z-index:4;min-height:0;background:transparent}.book-showroom-v2_embedded__plVnr .book-showroom-v2_scrollSection__v6C29{height:168vh}.book-showroom-v2_header__09pLw{position:fixed;z-index:40;top:18px;right:20px;left:20px;display:flex;align-items:center;justify-content:space-between;height:66px;border:1px solid rgba(88,153,181,.19);border-radius:8px;background:rgba(248,253,255,.9);box-shadow:0 14px 45px rgba(36,92,116,.08);padding:0 22px;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}.book-showroom-v2_brand__fRKXU{display:flex;align-items:center;gap:12px;color:#0f3a54;text-decoration:none}.book-showroom-v2_brand__fRKXU strong{font-size:20px;letter-spacing:0}.book-showroom-v2_brand__fRKXU span{border-left:1px solid #b8d7e4;padding-left:12px;color:#4c788d;font-size:13px;font-weight:700}.book-showroom-v2_header__09pLw nav{display:flex;align-items:center;gap:26px}.book-showroom-v2_header__09pLw nav a{color:#426f83;font-size:14px;font-weight:750;text-decoration:none}.book-showroom-v2_header__09pLw nav a:hover{color:#0c89b8}.book-showroom-v2_header__09pLw nav .book-showroom-v2_returnLink__nxTwf{border:1px solid #b9dce9;border-radius:999px;background:white;padding:10px 15px;color:#146d91}.book-showroom-v2_scrollSection__v6C29{position:relative;height:230vh}.book-showroom-v2_stage__3qfJt{position:relative;height:100svh;min-height:650px;overflow:hidden;isolation:isolate;background:linear-gradient(180deg,rgba(247,253,255,.98),rgba(239,249,252,.92) 50%,rgba(235,248,252,.74)),url(/images/snow-mountain-light.jpg) center 68%/cover no-repeat}.book-showroom-v2_backdrop__IZjUo{position:absolute;z-index:-1;inset:0;background:linear-gradient(90deg,rgba(244,252,255,.98),rgba(244,252,255,.5) 28%,rgba(244,252,255,.18) 50%,rgba(244,252,255,.5) 74%,rgba(244,252,255,.94)),linear-gradient(180deg,rgba(244,252,255,.9),rgba(244,252,255,.13) 62%,rgba(222,242,248,.82))}.book-showroom-v2_canvasWrap__Nbhnm{position:absolute;z-index:2;inset:0;cursor:grab;touch-action:none}.book-showroom-v2_canvasWrap__Nbhnm:active{cursor:grabbing}.book-showroom-v2_canvasWrap__Nbhnm canvas{display:block;width:100%!important;height:100%!important;outline:none}.book-showroom-v2_readingStage__YZLRu .book-showroom-v2_canvasWrap__Nbhnm{cursor:default}.book-showroom-v2_readingStage__YZLRu .book-showroom-v2_backdrop__IZjUo{background:linear-gradient(90deg,rgba(244,252,255,.94),rgba(244,252,255,.28) 37%,rgba(241,250,253,.62) 54%,rgba(241,250,253,.98)),linear-gradient(180deg,rgba(244,252,255,.91),rgba(244,252,255,.15) 62%,rgba(222,242,248,.88))}.book-showroom-v2_intro__B56MI{position:absolute;z-index:5;top:102px;left:5.4vw;width:-moz-max-content;width:max-content;max-width:320px;pointer-events:none;text-align:left}.book-showroom-v2_intro__B56MI>span{display:flex;align-items:center;gap:8px;color:#147ba2;font-size:14px;font-weight:900}.book-showroom-v2_intro__B56MI h1{margin:5px 0 0;color:#0d3650;font-size:18px;line-height:1.3;font-weight:800;letter-spacing:0}.book-showroom-v2_activeLabel__VeJOo{position:absolute;z-index:5;right:5.2vw;bottom:95px;display:grid;min-width:170px;justify-items:end;pointer-events:none;text-align:right}.book-showroom-v2_activeLabel__VeJOo small{color:#4083a0;font-size:12px;font-weight:850}.book-showroom-v2_activeLabel__VeJOo strong{margin-top:6px;color:#123f57;font-size:25px}.book-showroom-v2_activeLabel__VeJOo span{margin-top:4px;color:#7595a3;font-size:12px;font-weight:700}.book-showroom-v2_controlsHint__bk2es{position:absolute;z-index:6;bottom:28px;left:50%;display:flex;align-items:center;gap:20px;border:1px solid rgba(94,159,184,.24);border-radius:999px;background:rgba(250,254,255,.86);box-shadow:0 12px 38px rgba(36,94,118,.08);padding:11px 18px;color:#4e788b;font-size:12px;font-weight:800;pointer-events:none;transform:translateX(-50%);backdrop-filter:blur(8px)}.book-showroom-v2_controlsHint__bk2es span{display:flex;align-items:center;gap:6px;white-space:nowrap}.book-showroom-v2_progressRail__hCsWC{position:absolute;z-index:6;top:50%;right:24px;display:grid;gap:8px;transform:translateY(-50%)}.book-showroom-v2_progressRail__hCsWC span{width:4px;height:21px;border-radius:9px;background:rgba(42,125,157,.18);transition:height .25s ease,background .25s ease}.book-showroom-v2_progressRail__hCsWC .book-showroom-v2_progressActive__C_bG9{height:42px;background:#2fa4cd}.book-showroom-v2_modeHidden__nkUGd{opacity:0!important;pointer-events:none!important;transition:opacity .25s ease}.book-showroom-v2_loading__PkPvs{position:absolute;inset:0;display:grid;align-content:center;justify-items:center;gap:13px;color:#558093;font-size:13px;font-weight:800}.book-showroom-v2_loading__PkPvs span{width:28px;height:28px;border:3px solid #c4e6f0;border-top-color:#168db7;border-radius:50%;animation:book-showroom-v2_spin__kV3Pf .8s linear infinite}@keyframes book-showroom-v2_spin__kV3Pf{to{transform:rotate(1turn)}}.book-showroom-v2_bookDetailMode__G68UU{position:absolute;z-index:18;inset:0;pointer-events:none;animation:book-showroom-v2_detailModeIn__gto5S .72s cubic-bezier(.22,1,.36,1) both}.book-showroom-v2_bookDetailMode__G68UU:before{position:absolute;inset:0;z-index:0;background:linear-gradient(90deg,rgba(239,249,252,0) 0 40%,rgba(244,251,253,.55) 48%,rgba(248,253,255,.98) 58% 100%);content:"";pointer-events:none}.book-showroom-v2_detailBookCaption__j7jg_{position:absolute;bottom:60px;left:5.2vw;z-index:1;display:grid;max-width:250px;color:#17455c;pointer-events:none}.book-showroom-v2_detailBookCaption__j7jg_ span{color:#2584a8;font-size:12px;font-weight:900}.book-showroom-v2_detailBookCaption__j7jg_ strong{margin-top:6px;font-size:28px;line-height:1.18}.book-showroom-v2_detailBookCaption__j7jg_ small{margin-top:7px;color:#7796a4;font-size:12px;font-weight:700}.book-showroom-v2_detailContent__6nden{position:absolute;top:96px;right:0;bottom:0;z-index:2;display:grid;width:54%;min-width:650px;overflow:hidden;border-left:1px solid rgba(117,174,195,.22);background:rgba(249,253,255,.94);box-shadow:-28px 0 80px rgba(43,96,119,.08);padding:clamp(30px,4.2vh,52px) clamp(38px,5vw,76px) 30px;pointer-events:auto;contain:layout paint}.book-showroom-v2_bookOverview__FnytX{display:grid;grid-template-rows:auto auto auto auto auto minmax(0,1fr) auto;min-height:0;overflow:hidden}.book-showroom-v2_detailBack__5feSp{display:inline-flex;width:-moz-max-content;width:max-content;align-items:center;gap:7px;border:0;background:transparent;color:#30758f;padding:0;font-size:13px;font-weight:900;cursor:pointer}.book-showroom-v2_detailKicker__gXmRp{margin-top:26px;color:#1881a8;font-size:13px;font-weight:900}.book-showroom-v2_bookOverview__FnytX>h2{margin:9px 0 10px;color:#103b54;font-size:clamp(42px,4.2vw,62px);line-height:1.05;letter-spacing:0}.book-showroom-v2_bookOverview__FnytX>p{max-width:720px;margin:0;color:#5a7d8d;font-size:16px;line-height:1.72}.book-showroom-v2_bookOverview__FnytX dl{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin:24px 0 16px;border-block:1px solid #d7e9ef}.book-showroom-v2_bookOverview__FnytX dl div{padding:13px 15px}.book-showroom-v2_bookOverview__FnytX dl div+div{border-left:1px solid #d7e9ef}.book-showroom-v2_bookOverview__FnytX dt{color:#7895a2;font-size:11px;font-weight:800}.book-showroom-v2_bookOverview__FnytX dd{margin:5px 0 0;color:#214e63;font-size:13px;font-weight:900}.book-showroom-v2_chapterList__o7dUk{display:grid;min-height:0;align-content:start;overflow:auto;border-top:1px solid #d6e9f0;padding-top:13px;scrollbar-color:#72b8cf transparent;scrollbar-width:thin}.book-showroom-v2_chapterList__o7dUk>span{margin-bottom:5px;color:#257d9f;font-size:12px;font-weight:900}.book-showroom-v2_chapterList__o7dUk>button{display:grid;grid-template-columns:30px minmax(0,1fr) 20px;min-height:47px;align-items:center;gap:7px;border:0;border-bottom:1px solid #e1eef2;background:transparent;color:#254e61;padding:8px 2px;text-align:left;cursor:pointer}.book-showroom-v2_chapterList__o7dUk>button:hover{background:#f0f9fc}.book-showroom-v2_chapterList__o7dUk small{color:#6b9aad;font-size:11px;font-weight:900}.book-showroom-v2_chapterList__o7dUk b{overflow:hidden;font-size:13px;line-height:1.45;text-overflow:ellipsis;white-space:nowrap}.book-showroom-v2_chapterList__o7dUk svg{color:#4da0bf}.book-showroom-v2_detailActions__mTc2_{display:flex;align-items:center;gap:9px;border-top:1px solid #d6e9f0;padding-top:16px}.book-showroom-v2_detailActions__mTc2_ a,.book-showroom-v2_detailActions__mTc2_ button{display:inline-flex;min-height:44px;align-items:center;justify-content:center;gap:7px;border:1px solid #b9dde9;border-radius:6px;background:#168ab4;color:white;padding:0 16px;font-size:13px;font-weight:900;text-decoration:none;cursor:pointer}.book-showroom-v2_detailActions__mTc2_ a{background:white;color:#2e708c}.book-showroom-v2_detailActions__mTc2_ button:last-child{margin-left:auto;background:transparent;color:#528094}.book-showroom-v2_articleMode__xAgzl{display:grid;grid-template-rows:auto auto minmax(0,1fr) auto;min-height:0;overflow:hidden}.book-showroom-v2_articleMode__xAgzl>header{margin-top:25px;border-bottom:1px solid #d7e9ef;padding-bottom:15px}.book-showroom-v2_articleMode__xAgzl>header span{color:#1681a8;font-size:12px;font-weight:900}.book-showroom-v2_articleMode__xAgzl>header small{margin-left:12px;color:#849faa;font-size:11px;font-weight:750}.book-showroom-v2_articleMode__xAgzl>header h2{max-width:760px;margin:9px 0 0;color:#103b54;font-size:clamp(28px,3vw,44px);line-height:1.16;letter-spacing:0}.book-showroom-v2_articleBody__6EFSW{min-height:0;overflow:auto;padding:20px 14px 24px 0;color:#426b7d;font-size:16px;line-height:1.9;scrollbar-color:#72b8cf transparent;scrollbar-width:thin}.book-showroom-v2_articleBody__6EFSW h3{margin:26px 0 9px;color:#16445c;font-size:21px;line-height:1.4}.book-showroom-v2_articleBody__6EFSW p{margin:0 0 15px}.book-showroom-v2_articleBody__6EFSW ol,.book-showroom-v2_articleBody__6EFSW ul{margin:0 0 16px;padding-left:22px}.book-showroom-v2_articleBody__6EFSW li{margin:7px 0}.book-showroom-v2_articleBody__6EFSW table{display:block;max-width:100%;overflow:auto;border-collapse:collapse}.book-showroom-v2_articleBody__6EFSW td,.book-showroom-v2_articleBody__6EFSW th{border:1px solid #d4e7ee;padding:8px;vertical-align:top}.book-showroom-v2_articleNavigation__xhdNQ{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;border-top:1px solid #d7e9ef;padding-top:13px}.book-showroom-v2_articleNavigation__xhdNQ button{display:inline-flex;width:-moz-max-content;width:max-content;align-items:center;gap:5px;border:0;background:transparent;color:#287995;padding:7px 0;font-size:13px;font-weight:900;cursor:pointer}.book-showroom-v2_articleNavigation__xhdNQ button:last-child{justify-self:end}.book-showroom-v2_articleNavigation__xhdNQ button:disabled{opacity:.3;cursor:default}.book-showroom-v2_articleNavigation__xhdNQ span{color:#7998a5;font-size:12px;font-weight:850}.book-showroom-v2_staticFallback__WTvUx{position:absolute;inset:110px 80px 80px;display:flex;align-items:center;justify-content:center;gap:24px}.book-showroom-v2_staticFallback__WTvUx button{display:grid;border:0;background:transparent;cursor:pointer}.book-showroom-v2_staticFallback__WTvUx img{width:112px;height:168px;-o-object-fit:cover;object-fit:cover;box-shadow:0 18px 38px rgba(28,72,91,.16)}.book-showroom-v2_staticFallback__WTvUx span{margin-top:9px;color:#315e72;font-size:12px;font-weight:900}.book-showroom-v2_mobileBoundary__QWSAB{display:none}.book-showroom-v2_afterSection__E6_vj{min-height:74vh;background:#e5f5fa;padding:120px 9vw}.book-showroom-v2_afterSection__E6_vj>span{color:#2184a9;font-size:14px;font-weight:900}.book-showroom-v2_afterSection__E6_vj h2{margin:18px 0;color:#103a53;font-size:clamp(42px,5vw,72px);line-height:1.13;letter-spacing:0}.book-showroom-v2_afterSection__E6_vj p{max-width:620px;color:#597d8d;font-size:18px;line-height:1.85}.book-showroom-v2_afterSection__E6_vj a{display:inline-flex;align-items:center;gap:7px;margin-top:24px;border:1px solid #afd9e7;border-radius:999px;background:white;padding:13px 18px;color:#216c8b;font-size:14px;font-weight:900;text-decoration:none}@keyframes book-showroom-v2_detailModeIn__gto5S{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@media (max-width:1150px){.book-showroom-v2_header__09pLw nav{gap:12px}.book-showroom-v2_header__09pLw nav a{font-size:13px}.book-showroom-v2_intro__B56MI{left:4vw;max-width:270px}.book-showroom-v2_intro__B56MI h1{font-size:16px}.book-showroom-v2_activeLabel__VeJOo{right:3.4vw}.book-showroom-v2_detailContent__6nden{width:58%;min-width:600px;padding-inline:36px}.book-showroom-v2_detailBookCaption__j7jg_{left:3vw}}@media (max-width:899px){.book-showroom-v2_embedded__plVnr{display:none}.book-showroom-v2_header__09pLw{position:absolute;top:10px;right:10px;left:10px;height:58px;padding:0 13px}.book-showroom-v2_brand__fRKXU strong{font-size:17px}.book-showroom-v2_brand__fRKXU span,.book-showroom-v2_header__09pLw nav{display:none}.book-showroom-v2_scrollSection__v6C29{height:100svh}.book-showroom-v2_stage__3qfJt{min-height:100svh}.book-showroom-v2_backdrop__IZjUo{background:linear-gradient(180deg,#f7fcfe,#e8f7fb)}.book-showroom-v2_activeLabel__VeJOo,.book-showroom-v2_controlsHint__bk2es,.book-showroom-v2_intro__B56MI,.book-showroom-v2_progressRail__hCsWC{display:none}.book-showroom-v2_mobileBoundary__QWSAB{position:absolute;inset:0;display:grid;align-content:center;justify-items:center;gap:10px;padding:30px;color:#4a7589;text-align:center}.book-showroom-v2_mobileBoundary__QWSAB strong{color:#173f56;font-size:21px}.book-showroom-v2_mobileBoundary__QWSAB p{margin:0;font-size:14px;line-height:1.65}.book-showroom-v2_mobileBoundary__QWSAB a{margin-top:8px;border:1px solid #acd7e5;border-radius:999px;background:white;padding:10px 15px;color:#1b779a;font-size:13px;font-weight:900;text-decoration:none}.book-showroom-v2_afterSection__E6_vj,.book-showroom-v2_bookDetailMode__G68UU{display:none}}@media (prefers-reduced-motion:reduce){.book-showroom-v2_bookDetailMode__G68UU,.book-showroom-v2_loading__PkPvs span{animation:none}.book-showroom-v2_progressRail__hCsWC span{transition:none}}