*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}body{margin:0;background:#f4f4e9;color:#193e35;font:17px/1.9 "PingFang SC","Microsoft YaHei",sans-serif}a{color:inherit;text-underline-offset:5px}a:hover{color:#a0491d}button,input,select,textarea{font:inherit;color:inherit;max-width:100%}button,.button{min-height:47px;padding:10px 20px;cursor:pointer;background:#174c3e;color:#fff;border:1px solid #174c3e;text-decoration:none;display:inline-flex;align-items:center;justify-content:center}button.secondary,.button.secondary{background:transparent;color:#174c3e}button:hover,.button:hover{background:#a0491d;color:#fff;border-color:#a0491d}input,select,textarea{border:1px solid #9bada3;background:#fff;padding:10px 12px;border-radius:0;min-height:47px}textarea{width:100%;min-height:190px;line-height:1.9}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid #b66028;outline-offset:4px}.skip{position:fixed;top:-100px;background:#fff;color:#123;padding:12px;z-index:10}.skip:focus{top:12px}.rail{position:fixed;top:0;bottom:0;left:0;width:205px;background:#174c3e;color:#f4f4e9;padding:36px 26px;display:flex;flex-direction:column;z-index:2}.wordmark{text-decoration:none;font:600 24px/1.5 "Songti SC",SimSun,serif;letter-spacing:.07em}.rail small{font-size:10px;letter-spacing:.16em;color:#c1d2b8;margin:9px 0 35px}.rail nav{display:flex;flex-direction:column;gap:6px}.rail nav a{text-decoration:none;font-size:15px;min-height:44px;display:flex;align-items:center;padding:6px 0}.rail nav a[aria-current=page]{color:#f2d2a1;border-bottom:1px solid #a0b7a2}.rail .imprint{margin-top:auto;font-size:12px;color:#c1d2b8}.rail a:hover{color:#f2d2a1}main{margin-left:205px;padding:48px clamp(28px,6vw,100px) 75px;max-width:1500px}h1,h2,h3{text-wrap:balance;font-family:"Songti SC",SimSun,serif;line-height:1.4;font-weight:600}h1{font-size:clamp(35px,4.1vw,57px);letter-spacing:-.025em;margin:13px 0 25px}h2{font-size:29px;margin:0 0 20px}h3{font-size:23px;margin:10px 0 16px}p{margin:0 0 20px}.eyebrow{font-size:12px;letter-spacing:.18em;color:#876129;font-weight:600}.lead{font-size:20px;line-height:1.9;max-width:42em}.meta{font-size:13px;color:#53695c}.intro{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(240px,.75fr);gap:55px;align-items:center;margin-bottom:54px}.intro h1{font-size:clamp(58px,6.5vw,98px);line-height:1.1;letter-spacing:.04em;margin:23px 0}.jacket{position:relative;background:#d7e3c7;min-height:500px;padding:40px;color:#174c3e;overflow:hidden;border:1px solid #adc1a6;box-shadow:12px 13px 0 #e2e5d8}.jacket .seal{width:44px;height:44px;background:#ab562f;color:#fff;text-align:center;font:19px/44px "Songti SC",serif}.jacket .vertical{writing-mode:vertical-rl;font:600 65px/1.4 "Songti SC",serif;letter-spacing:.12em;margin:24px auto;position:relative;z-index:1}.jacket .hill{position:absolute;bottom:-40px;left:-70px;width:350px;height:240px;border-radius:50%;background:#9db7a2;transform:rotate(-25deg)}.jacket .hill.two{left:100px;bottom:-115px;background:#6e957f}.jacket p{position:relative;z-index:1;font-size:12px;letter-spacing:.1em}.actions{display:flex;gap:12px;flex-wrap:wrap;margin:25px 0}.facts{display:flex;gap:12px 24px;flex-wrap:wrap;font-size:14px;border-top:1px solid #b7c5b6;border-bottom:1px solid #b7c5b6;padding:18px 0;margin:22px 0}.facts strong{font-weight:600}.opening{font:26px/1.8 "Songti SC",serif;border-left:3px solid #a95b32;padding-left:24px;margin:28px 0}.body-copy{max-width:790px}.body-copy h2{margin-top:40px}.body-copy li{margin:12px 0}.panels{display:grid;grid-template-columns:1fr 1fr;gap:30px}.section{border-top:1px solid #bdc9b9;margin-top:42px;padding-top:28px}.pathways{display:flex;flex-direction:column}.pathways a{display:grid;grid-template-columns:180px 1fr 22px;gap:25px;padding:24px 0;border-bottom:1px solid #bdc9b9;text-decoration:none}.pathways strong{font:600 25px/1.4 "Songti SC",serif}.pathways span{font-size:15px}.pathways em{font-style:normal}.filters{display:grid;grid-template-columns:2fr 1fr 1fr auto;gap:14px;align-items:end;padding:22px;background:#e3e9db;margin:25px 0}.filters label{display:block;font-size:14px}.filters input,.filters select{display:block;width:100%;margin-top:7px}.chaptergroup{margin:35px 0}.chaptergroup h2{font-size:25px;padding-bottom:18px;border-bottom:1px solid #aebbab}.chapters{list-style:none;padding:0;margin:0}.chapters li{display:grid;grid-template-columns:1fr auto;gap:18px;align-items:center;border-bottom:1px solid #d9e0d0;padding:10px 0;min-height:60px}.chapters a{font-size:16px;text-decoration:none;min-height:44px;display:flex;align-items:center}.chapters label{min-height:44px;font-size:13px;display:flex;align-items:center;gap:9px;white-space:nowrap}.chapters input{width:19px;height:19px;min-height:0;padding:0;accent-color:#174c3e}.volume-note{font-size:14px;color:#53695c;margin-bottom:18px}.notice{padding:18px 22px;border:1px solid #b9c8af;background:#e9eddc;font-size:15px;margin:25px 0}.status{min-height:27px;font-size:14px}.empty{padding:30px;border:1px solid #b5c8af;margin:25px 0}.grid-three{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.item{background:#e3e9db;padding:24px}.item h2{font-size:24px}.item p{font-size:15px}.readingroute{counter-reset:route;list-style:none;padding:0}.readingroute>li{counter-increment:route;display:grid;grid-template-columns:52px 1fr;gap:20px;border-top:1px solid #bdc9b9;padding:28px 0}.readingroute>li:before{content:counter(route);font:42px/1 "Songti SC",serif;color:#986239}.readingroute p{font-size:16px}.readingroute h2{font-size:27px;margin:0 0 13px}.notebook{display:grid;grid-template-columns:1.1fr 1fr;gap:35px}.notebook label{display:block;margin:0 0 15px;font-size:15px}.notebook input,.notebook select{display:block;width:100%;margin:6px 0}.notes{list-style:none;padding:0}.notes li{padding:22px;border:1px solid #bdc9b9;margin-bottom:20px}.notes p{white-space:pre-wrap;overflow-wrap:anywhere;font-size:15px}.notes h3{font-size:23px}.notes button{font-size:13px;min-height:44px;padding:8px 12px}details{padding:17px 0;border-top:1px solid #bdc9b9}summary{cursor:pointer;font-size:18px;font-weight:600;min-height:44px}details p{margin-top:15px}.question{padding:25px 0;border-bottom:1px solid #bdc9b9}.question h2{font-size:26px}.question .tag{font-size:12px;color:#a0491d}.source{font-size:14px;overflow-wrap:anywhere}.source li{margin:8px 0}footer{margin-left:205px;padding:30px clamp(28px,6vw,100px);border-top:1px solid #bdc9b9;background:#e8ecdf;font-size:13px;color:#4c6658}footer nav{display:flex;gap:20px;flex-wrap:wrap}footer a{min-height:44px;display:inline-flex;align-items:center}footer p{max-width:850px}input[type=file]{width:100%;font-size:13px}progress{width:100%;height:10px;accent-color:#174c3e}.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}.toolbar button{font-size:14px}.reading-mode{max-width:790px}.reading-mode section{margin:35px 0}[hidden]{display:none!important}::selection{background:#c9d9b4}@media(max-width:1050px){.rail{width:175px;padding:28px 21px}main,footer{margin-left:175px}main{padding:35px 35px 55px}.intro{gap:30px}.jacket{min-height:420px;padding:28px}.jacket .vertical{font-size:56px}.grid-three{grid-template-columns:1fr}.filters{grid-template-columns:1fr 1fr}.notebook{grid-template-columns:1fr}}@media(max-width:700px){body{font-size:16px}.rail{position:static;width:auto;display:block;padding:18px 20px 0}.wordmark{font-size:25px}.rail small{display:inline;margin-left:12px;font-size:9px}.rail nav{display:flex;flex-direction:row;gap:0;justify-content:space-between;margin-top:12px}.rail nav a{font-size:13px;min-height:46px}.rail .imprint{display:none}main,footer{margin-left:0}main{padding:28px 21px 40px}.intro{grid-template-columns:1fr;gap:25px;margin-bottom:30px}.intro h1{font-size:64px;line-height:1.05;margin:22px 0}.intro .jacket{display:none}.lead{font-size:18px}.facts{gap:8px 16px;font-size:13px}.intro .button{flex:1;padding:10px 13px}.opening{font-size:23px;padding-left:18px}.pathways a{grid-template-columns:1fr 20px;gap:10px;padding:22px 0}.pathways strong{font-size:24px}.pathways span{grid-row:2;grid-column:1}.pathways em{grid-column:2;grid-row:1/3;align-self:center}.panels{grid-template-columns:1fr;gap:20px}.filters{padding:16px;gap:12px}.filters label:first-child{grid-column:1/-1}.filters button{width:100%}.chapters li{gap:10px;padding:10px 0}.chapters a{font-size:15px;line-height:1.7}.chapters label{font-size:12px}.chaptergroup h2{font-size:24px}h1{font-size:35px}h2{font-size:27px}.section{margin-top:32px;padding-top:25px}.readingroute>li{grid-template-columns:36px 1fr;gap:15px}.readingroute>li:before{font-size:34px}.readingroute h2{font-size:25px}.notice{padding:16px}.question h2{font-size:24px}.actions .button{font-size:15px}footer{padding:26px 21px}.notebook{gap:22px}}@media print{.rail,button,.toolbar,.actions,footer{display:none}main{margin:0;padding:0}body{background:white;color:black}.notebook{display:block}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}