/* Reference-led edition: bright meadow, crisp labels, pink main road, green spurs. */
.reference-version{--cream:#fffaf1;--paper:#fffefd;--ink:#252724;--muted:#596052;--berry:#de214b;--pink:#fa7894;--leaf:#3b843e;background:var(--cream);color:var(--ink)}
.reference-version .site-header{max-width:none;margin:0 32px;height:72px;padding:0 25px;border-bottom:1px solid #e9e9d9}
.reference-version .brand{color:#572e25;font-size:23px}.reference-version .brand small{color:#72765d;letter-spacing:.06em}
.reference-version nav{color:#3b4935;font-size:14px}.reference-version .quick{border:1.5px solid #b7cb9e;background:#fffff5;color:#3c6132;font-weight:700}
.reference-version .intro{max-width:1400px;margin:23px auto 18px;padding:0 30px;text-align:center}
.reference-version .intro h1{font-size:clamp(32px,3.8vw,57px);line-height:1.3;letter-spacing:.015em;font-weight:900;color:#482923;margin-bottom:10px}
.reference-version .intro h1 span{display:inline;color:#dd1648}.reference-version .title-berry{display:inline-block;vertical-align:middle;font-size:1.15em;margin-right:12px;transform:rotate(-9deg)}
.reference-version .lead{color:#31382c;font-size:18px;font-weight:500;line-height:1.7}
.reference-version .intro-meta{justify-content:center;gap:28px;font-size:14px;color:#3e4938;margin-top:15px;flex-wrap:wrap}
.reference-version .intro-meta .tap-note{margin-left:0;font-size:12px;color:#627056}
.reference-version .pink-line{height:9px;width:38px;background:#fa7894;box-shadow:0 0 0 3px #ffe3e9}
.reference-version .green-line{height:8px;width:38px;border:0;background:repeating-linear-gradient(90deg,#77b55e 0 9px,#fff 9px 13px);border-radius:6px}
.reference-version .journey-shell{width:calc(100% - 32px);max-width:none;margin:0 16px;background:#fffaf1;border:0;border-radius:20px;box-shadow:none;overflow:hidden}
.reference-version .map-intro{height:83px;padding:0 8%;gap:25px;background:linear-gradient(#fffaf1,#fffaf1e8)}
.reference-version .map-intro p{font-size:16px;font-weight:600;line-height:1.7;color:#506139;text-shadow:none}
.reference-version .wood.small{font-size:22px;border-color:#a96b31;padding:7px 26px;transform:rotate(-5deg);border-radius:8px;color:#fffdf3}
.reference-version .wood.small .wood-berry{display:none}.reference-version .wood.small b{font-size:27px}.reference-version .wood.small span{font-size:12px}
.reference-version .map{position:relative;isolation:isolate}
.reference-version #scenery{position:absolute;inset:0;pointer-events:none;z-index:auto;overflow:hidden}
.reference-version .reference-terrain{position:absolute;inset:0;width:100%;height:100%;max-width:none;object-fit:fill;pointer-events:none;z-index:0}
.reference-version .roads{z-index:1}.reference-version #stations{position:relative;z-index:3}
.reference-version .roads path{fill:none;stroke-linecap:round;stroke-linejoin:round}
.reference-version .reference-main-verge{stroke:#ffd1d8;stroke-width:116px}
.reference-version .reference-main-road{stroke:#fa829b;stroke-width:88px}
.reference-version .reference-main-glow{stroke:#ffacc0;stroke-width:69px;opacity:.28}
.reference-version .reference-main-dashes{stroke:#fffdf7;stroke-width:3px;stroke-dasharray:14 20}
.reference-version .reference-branch-edge{stroke:#ecf5d5;stroke-width:22px}
.reference-version .reference-branch-road{stroke:#76b35e;stroke-width:15px}
.reference-version .reference-branch-dots{stroke:#fffef4;stroke-width:4px;stroke-dasharray:1 13}
.reference-version .station{pointer-events:none;height:112px;scroll-margin-top:180px}
.reference-version .station button{pointer-events:auto}
.reference-version .main-sign{top:-56px;width:var(--main-width,270px)!important;height:112px;min-height:0;display:flex;align-items:center;justify-content:flex-start;gap:12px;padding:12px 16px 12px 24px;border:2.5px solid #f26380;border-radius:20px;background:#fffefd;box-shadow:0 5px 0 #ffb4c150,0 7px 16px #82483612;transform:rotate(var(--tilt,-1deg));filter:none;text-align:left;isolation:isolate}
.reference-version .main-sign::before,.reference-version .main-sign::after{display:none}
.reference-version .main-sign:hover{transform:translateY(-4px) rotate(var(--tilt,-1deg));box-shadow:0 7px 0 #ffb4c140,0 10px 20px #82483620;filter:none}
.reference-version .station-number{display:flex;align-items:center;justify-content:center;left:-29px;top:30px;width:51px;height:51px;border:3px solid #fffdf5;border-radius:50%;line-height:1;background:#f45e7d;color:#fff;font-size:27px;font-weight:900;box-shadow:0 2px 4px #c84f6525}
.reference-version .main-art{display:block;width:49px;flex:0 0 49px;height:73px;margin:0;background:none;box-shadow:none;border:0;overflow:visible;transform:rotate(-3deg)}
.reference-version .main-art .book-cover{border-radius:3px;filter:drop-shadow(1px 2px 1px #6b5c3e24)}
.reference-version .main-art svg{opacity:1;filter:none}
.reference-version .main-copy{padding:0;min-width:0;align-self:center;text-shadow:none}
.reference-version .main-copy strong{font-family:"Microsoft YaHei","PingFang SC",sans-serif;font-size:27px;line-height:1.25;letter-spacing:-.02em;font-weight:900;color:#242624;white-space:nowrap;-webkit-text-stroke:0;text-shadow:none}
.reference-version .main-copy small{font-size:15.5px;font-weight:600;line-height:1.5;color:#672a37;background:#ffdee6;padding:2px 9px;margin-top:6px;border-radius:9px;text-shadow:none;white-space:nowrap}
.reference-version .hint-arrow,.reference-version .mobile-branches,.reference-version .phase-marker,.reference-version .handoff{display:none!important}
.reference-version .branch-group{display:contents}
.reference-version .branch-sign,.reference-version .branch-sign.sign-right,.reference-version .raz-sign{position:absolute;display:flex!important;align-items:center;justify-content:flex-start;min-height:0;gap:12px;padding:14px 17px 14px 35px;border:0;border-radius:0;background:none;box-shadow:none;isolation:isolate;filter:drop-shadow(0 4px 0 #a7c79535);transform:rotate(var(--tilt,0deg));transform-origin:50% 50%;overflow:visible;text-align:left}
.reference-version .branch-sign::before,.reference-version .branch-sign::after{content:"";display:block!important;position:absolute;inset:0;z-index:-1;border:0;border-radius:8px;clip-path:polygon(0 50%,10% 0,100% 0,100% 100%,10% 100%);background:#fffef9;box-shadow:none;transform:none}
.reference-version .branch-sign::after{inset:-3px;z-index:-2;background:#468b40}
.reference-version .branch-sign.sign-right{padding-left:17px;padding-right:35px}
.reference-version .branch-sign.sign-right::before,.reference-version .branch-sign.sign-right::after{transform:scaleX(-1)}
.reference-version .branch-sign .signpost{display:block;position:absolute;left:48%;top:100%;height:23px;width:13px;background:linear-gradient(90deg,#b88242,#d8ab6b,#ad7338);border:1px solid #a9773a;border-top:0;border-radius:0 0 2px 2px;box-shadow:2px 2px 0 #7c875318;z-index:-3;transform:none}
.reference-version .branch-sign .signpost::after{display:none}
.reference-version .branch-sign .sign-rivet,.reference-version .raz-sign .little-dot{display:none}
.reference-version .branch-sign:hover{transform:translateY(-4px) rotate(var(--tilt,0deg));filter:drop-shadow(0 6px 0 #8fb17840);box-shadow:none}
.reference-version .branch-sign .small-art{display:block;width:44px;flex:0 0 44px;height:63px;margin:0;background:none;overflow:visible;transform:rotate(-3deg)}
.reference-version .branch-sign .small-art svg{opacity:1}
.reference-version .branch-sign .branch-copy{flex:1;min-width:0;color:#252724;text-align:left;align-self:center;text-shadow:none}
.reference-version .branch-sign strong,.reference-version .branch-sign[data-key="ox6-raz"] strong{font-family:"Microsoft YaHei","PingFang SC",sans-serif;font-size:18px;font-weight:800;line-height:1.35;color:#252724;letter-spacing:-.02em;overflow-wrap:normal;word-break:normal;-webkit-text-stroke:0;text-shadow:none}
.reference-version .branch-sign small{display:table;color:#344f2b;font-size:14px;font-weight:600;line-height:1.4;margin-top:6px;padding:2px 6px;background:#eef6e6;border-radius:6px;white-space:normal;text-shadow:none}
.reference-version .branch-sign em{display:none}
.reference-version .raz-sign .branch-copy{text-align:center}.reference-version .raz-sign strong,.reference-version .raz-sign[data-key="ox6-raz"] strong{font-size:23px;font-weight:900}.reference-version .raz-sign small{margin-left:auto;margin-right:auto}
.reference-version .reference-phase{position:absolute;z-index:2;display:inline-block;left:var(--phase-left,8%);padding:6px 19px;color:#fffdf0;background:linear-gradient(105deg,#b97d3f,#d69b56 52%,#b77838);border:2px solid #a66a30;border-radius:8px;box-shadow:inset 0 0 0 2px #f4c48b88,2px 4px 0 #9a713923;transform:rotate(-5deg);font-size:24px;font-weight:900;letter-spacing:.08em;white-space:nowrap}
.reference-version .reference-phase::after{content:"";position:absolute;top:100%;left:46%;width:13px;height:22px;background:linear-gradient(90deg,#a9753b,#d7a25e,#b68143);z-index:-1}
.reference-version .reference-handoff{left:50%;padding:11px 25px;border-radius:14px;background:#f05b76;border:3px solid #fff7e6;color:#fff;box-shadow:0 4px 0 #a9474a28;font-size:20px;font-weight:900;transform:translateX(-50%) rotate(-1deg);text-align:center;position:absolute;z-index:3;white-space:nowrap}
.reference-version .reference-handoff small{display:block;font-size:11px;font-weight:500;margin-top:3px}
.reference-version .strawberry-patch{width:75px;z-index:2;opacity:1;filter:none}
.reference-version .journey-end{height:200px;padding:40px 12px 0;background:#fffaf1;position:relative;z-index:2}
.reference-version .journey-end::before{display:none}
.reference-version .wood.wide{display:inline-flex;align-items:center;gap:12px;font-size:26px;line-height:1.5;font-weight:900;background:#ed5f7b;border:3px solid #fff5e7;border-radius:14px;padding:13px 28px;box-shadow:0 5px 0 #c04c5e25;color:#fff;transform:rotate(-2deg);text-shadow:none}
.reference-version .wood.wide::after{display:none}.reference-version .journey-end p{font-size:15px;color:#4d673e;margin-top:18px;font-weight:600}
.reference-version .route-note{max-width:none;margin:15px 32px;padding:0 20px;color:#647257;font-size:12px}
.reference-version .ideas-section{margin-top:65px}.reference-version .idea{border-top:2px solid #c3d7ae}.reference-version .idea-index{color:#71a457}.reference-version .idea h3{font-size:18px}.reference-version .idea p{font-size:14px;color:#535f49}
.reference-version .weekly{background:#edf4df;border:1px solid #d9e8c4}.reference-version .weekly b{font-size:16px}.reference-version .weekly p{font-size:13px;color:#4c643e}
.reference-version .lesson-dialog,.reference-version .quick-dialog{background:#fffefa;border:2px solid #f2c1c8;color:#252724}
.reference-version .detail-heading h2{font-weight:900;color:#252724}.reference-version .detail-intro{color:#57614d}.reference-version .detail-ar{font-weight:700;color:#b93c59}
.reference-version .lesson-media-section{margin-top:23px}.reference-version .lesson-media-section>h3{font-size:16px;margin:0 0 12px;color:#3f6234}
.reference-version .supplement-section{padding-top:20px;border-top:1px solid #e0e9d3}.reference-version .supplement-section[hidden]{display:none}
.reference-version .media-list{display:grid;gap:22px}.reference-version .media-card{min-width:0}.reference-version .media-card-heading{display:flex;gap:8px;align-items:center;margin-bottom:10px}
.reference-version .media-card .video-title{font-size:14px;margin:0;color:#333f2c;line-height:1.65}.reference-version .media-kind{font-size:11px;background:#edf3e3;color:#486f39;border-radius:5px;padding:2px 7px;flex-shrink:0}
.reference-version .media-description{font-size:13px;color:#657258;line-height:1.7}.reference-version .media-card .real-video{display:block;height:auto;width:100%;max-height:65dvh;object-fit:contain;background:#20241d}.reference-version .real-audio{display:block;width:100%;height:54px}
.reference-version .close-bottom{background:#518d3d;font-size:14px;font-weight:700}.reference-version .related button{font-size:12px;color:#3a6530}
.reference-version .version-note{font-size:11px;color:#7c806a;margin-left:14px;border-bottom:1px solid #c5c8b6}
@media(min-width:1600px){.reference-version .main-copy strong{font-size:29px}.reference-version .branch-sign strong{font-size:19px}.reference-version .raz-sign strong{font-size:24px}}
@media(max-width:1099px){
 .reference-version .reference-terrain{mask-image:linear-gradient(transparent,#000 4%,#000 96%,transparent)}
 .reference-version .reference-main-verge{stroke-width:54px}.reference-version .reference-main-road{stroke-width:38px}.reference-version .reference-main-glow{stroke-width:28px}.reference-version .reference-main-dashes{stroke-width:2.5px;stroke-dasharray:10 15}
 .reference-version .reference-branch-edge{stroke-width:17px}.reference-version .reference-branch-road{stroke-width:11px}.reference-version .reference-branch-dots{stroke-width:3px;stroke-dasharray:1 10}
 .reference-version .site-header{height:74px;margin:0 14px;padding:0 12px}.reference-version .brand{font-size:20px}.reference-version .version-note{display:none}
 .reference-version .intro{margin-top:27px;padding:0 20px}.reference-version .intro h1{font-size:clamp(30px,5vw,44px)}
 .reference-version .lead{font-size:15px}.reference-version .intro-meta{font-size:12px;gap:18px}
 .reference-version .journey-shell{width:calc(100% - 16px);margin:0 8px;border-radius:12px}
 .reference-version .map-intro{height:115px;padding:0 8%;gap:17px}.reference-version .map-intro p{font-size:14px}
 .reference-version .main-copy strong{font-size:26px}.reference-version .main-copy small{font-size:13px}
 .reference-version .main-art{width:43px;flex-basis:43px;height:64px}
 .reference-version .main-sign{padding-left:18px;padding-right:12px;gap:10px;border-radius:17px}
 .reference-version .reference-phase{font-size:20px;padding:5px 15px}
 .reference-version .reference-handoff{font-size:16px;padding:10px 12px}.reference-version .reference-handoff small{font-size:10px}
}
@media(max-width:600px){
 .reference-version .site-header{margin:0 12px;padding:0;height:72px}.reference-version .brand{font-size:18px;gap:6px}.reference-version .berry-mark{font-size:32px}.reference-version .brand small{font-size:9px}
 .reference-version .quick{font-size:11px;padding:8px 10px}.reference-version .quick span{margin-left:4px}
 .reference-version .intro{margin:23px auto 18px;padding:0 16px}.reference-version .intro h1{font-size:30px;letter-spacing:0;line-height:1.4}.reference-version .intro h1 .title-berry{display:none}.reference-version .intro h1 .title-camp{display:block;font-size:25px}.reference-version .intro h1 .title-last{display:inline}
 .reference-version .lead{font-size:12px;line-height:1.9}.reference-version .intro-meta{gap:14px;font-size:11px;margin-top:12px}.reference-version .intro-meta .tap-note{width:100%;display:block;margin-top:-4px;font-size:11px}
 .reference-version .map-intro{height:106px;gap:15px;padding:0 7%}.reference-version .wood.small{padding:5px 15px}.reference-version .wood.small b{font-size:24px}.reference-version .wood.small span{font-size:10px}.reference-version .map-intro p{font-size:12px;line-height:1.8}
 .reference-version .station-number{width:45px;height:45px;left:-26px;top:33px;font-size:24px}
 .reference-version .main-copy strong{font-size:24px}.reference-version .main-copy small{font-size:12px;padding:2px 7px}.reference-version .main-art{width:39px;flex-basis:39px;height:60px}
 .reference-version .branch-sign strong{font-size:17px;line-height:1.35}.reference-version .branch-sign small{font-size:12px}
 .reference-version .raz-sign strong{font-size:22px}.reference-version .branch-sign .small-art{width:40px;flex-basis:40px;height:58px}
 .reference-version .reference-phase{font-size:18px;padding:5px 14px}.reference-version .reference-handoff{font-size:15px;padding:9px 11px}
 .reference-version .reference-handoff small{font-size:9px}.reference-version .strawberry-patch{width:56px}
 .reference-version .journey-end{height:170px;padding-top:28px}.reference-version .wood.wide{font-size:19px;padding:11px 17px;gap:4px}.reference-version .journey-end p{font-size:12px;margin-top:17px}
 .reference-version .route-note{margin:12px 8px;font-size:10px;padding:0 16px;line-height:1.8}
 .reference-version .ideas-section{margin-top:45px}.reference-version .idea h3{font-size:16px}.reference-version .idea p{font-size:13px}.reference-version .weekly b{font-size:14px}.reference-version .weekly p{font-size:12px}
 .reference-version .media-card-heading{flex-wrap:wrap}.reference-version .media-card .video-title{font-size:13px}
}