/** Design: 苔痕档案馆强化层——贯穿叶脉索引、植物档案纸卡和统一视频采集标签。 */
main{position:relative}main:before{background:linear-gradient(var(--moss),rgba(14,70,56,.18) 82%,transparent);content:"";left:clamp(17px,4.15vw,63px);opacity:.36;position:absolute;top:0;bottom:0;width:1px;z-index:1}main>section{position:relative}main>section:after{background:var(--paper);border:2px solid var(--moss);border-radius:50%;content:"";height:9px;left:calc(clamp(17px,4.15vw,63px) - 4px);position:absolute;top:34px;width:9px;z-index:2}.hero:after{background:var(--amber);border-color:#f4d59e;top:52px}.video-card,.role-grid article{clip-path:polygon(0 0,calc(100% - 21px) 0,100% 21px,100% 100%,0 100%);position:relative}.video-card:before{background:var(--moss);color:#f4f0e6;content:"采集档案 / VIDEO";font-size:9px;letter-spacing:.1em;padding:6px 10px;position:absolute;right:0;top:0;z-index:3}.video-body{border-top:4px solid transparent;border-image:linear-gradient(90deg,var(--amber) 34px,transparent 34px) 1;position:relative}.video-body:after{color:#708076;content:"ST · 观察法 · 夏季";display:block;font-size:9px;letter-spacing:.1em;margin-top:14px}.role-grid article:after{border:1px solid rgba(14,70,56,.42);color:var(--moss);content:"少萝 · FIELD NOTE";font-size:8px;letter-spacing:.1em;padding:5px 7px;position:absolute;right:13px;top:13px}.howto-section{background:var(--paper-deep);border-left:9px solid var(--moss)}.howto-section:after{background:var(--paper);border-color:var(--moss)}.brand span{position:relative}.brand span:after{background:var(--moss);content:"";height:21px;left:51%;opacity:.75;position:absolute;top:5px;width:1px}.brand span:before{background:var(--amber);content:"";height:3px;position:absolute;right:1px;top:1px;width:3px}.community-card{border-left:4px solid var(--amber);clip-path:polygon(0 0,calc(100% - 22px) 0,100% 22px,100% 100%,0 100%)}.three-steps span:before{background:var(--amber);content:"";display:inline-block;height:6px;margin-right:7px;width:6px}@media(max-width:540px){main:before{left:14px}main>section:after{left:10px}.howto-section{border-left-width:5px}}