.earth-day-panel{display:grid;width:100%;min-width:0;gap:18px;margin-top:18px;color:#244e3b}.earth-cover,.earth-module{box-sizing:border-box;width:100%;min-width:0;border:1px solid #d2dfd4;border-radius:22px;padding:19px 16px;background:#fbfaf4;box-shadow:0 10px 24px rgba(39,73,54,.07)}
.earth-cover{position:relative;overflow:hidden;color:#f8f4df;background:linear-gradient(135deg,#123f32,#417b5b)}.earth-cover:after{content:"";position:absolute;right:0;bottom:0;width:52%;height:76%;border-radius:70% 0 0 0;background:repeating-radial-gradient(ellipse at right bottom,rgba(255,255,255,.1) 0 3px,transparent 4px 24px);opacity:.65;pointer-events:none}.earth-cover>p,.earth-cover>h3,.earth-cover>span,.earth-cover>.audio-guide{position:relative;z-index:1}.earth-cover>p{margin:0 0 8px;font-size:13px;letter-spacing:.12em}.earth-cover h3{margin:0 0 8px;font-family:"Songti SC","STSong",serif;font-size:24px;line-height:1.3}.earth-cover>span{display:block;line-height:1.6;font-size:13px;opacity:.86}.earth-cover .audio-guide{margin-top:18px}
.earth-module{padding:20px;background:#f4f8f2}.module-heading{display:flex;align-items:center;gap:12px;margin-bottom:16px}.module-heading em{display:grid;place-items:center;width:42px;height:42px;border-radius:13px;background:#176747;color:#fff;font-style:normal;font-weight:800}.module-heading h4{margin:0;font-family:"Songti SC","STSong",serif;font-size:23px}.earth-module>p{line-height:1.85;color:#577065}.earth-progress{position:relative;overflow:hidden;min-height:78px;padding:17px 20px;border-radius:18px;color:#fff;background:#194f3e}.earth-progress b{display:block;font-size:17px}.earth-progress span{position:absolute;right:18px;top:14px;font-size:30px;font-weight:900;opacity:.4}.earth-progress i{position:absolute;left:0;bottom:0;width:var(--progress);height:7px;background:#d4ad4c}.progress-module>p{margin:10px 3px 0;text-align:right;font-size:13px}.question-module h5{margin:0 0 16px;text-align:center;font-family:"Songti SC","STSong",serif;font-size:21px;color:#765d3e}.evidence-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.evidence-grid article,.timeline-cards article,.traveler-scroll article{padding:14px;border:1px solid #d5dfd5;border-radius:16px;background:rgba(255,255,255,.78)}.evidence-grid b,.timeline-cards b,.traveler-scroll b{display:block;margin-bottom:6px;color:#176747}.evidence-grid p,.timeline-cards p,.traveler-scroll p{margin:0;color:#62736b;font-size:13px;line-height:1.65}.fact-note{padding:12px 14px;border-left:4px solid #b88a31;background:#fffaf0!important;color:#725e3d!important;font-size:13px}.family-mini-task{display:flex;gap:12px;margin-top:15px;padding:14px;border-radius:16px;background:#e5efe4}.family-mini-task b{white-space:nowrap;color:#176747}.family-mini-task span{font-size:13px;line-height:1.65;color:#526a5e}.earth-answer{margin-top:15px;padding:16px;text-align:center;border-radius:17px;background:#174b39}.earth-answer small{display:block;margin-bottom:12px;color:#e3eddf}.earth-answer span{display:inline-grid;place-items:center;width:46px;height:46px;margin:3px;border:2px dashed rgba(255,255,255,.55);border-radius:13px;color:#f4d990;font-size:23px}.archive-module>p{margin-bottom:10px;padding:14px;border-radius:14px;background:#205d47;color:#fff}.archive-module>b{display:block;line-height:1.7;color:#8a6427}
.china-mountain-map{position:relative;height:235px;margin-bottom:14px;border-radius:19px;background:linear-gradient(145deg,#f0e4bd,#d7e8d7);overflow:hidden}.china-mountain-map:before{content:"中国山河示意";position:absolute;left:18px;top:16px;color:#5c785f;font-weight:800}.range{position:absolute;padding:4px 8px;border-radius:999px;background:rgba(255,255,255,.75);font-size:11px;color:#58705c}.r1{left:12%;top:32%}.r2{left:39%;top:28%}.r3{right:14%;top:31%}.r4{right:4%;top:20%}.r5{left:42%;top:51%}.r6{left:48%;bottom:16%}.r7{right:15%;bottom:21%}.tiantai-pin{position:absolute;right:8%;bottom:11%;padding:8px 11px;border-radius:16px 16px 16px 3px;background:#d96f62;color:#fff;box-shadow:0 7px 16px rgba(130,55,48,.2)}
.timeline-cards,.traveler-scroll{display:grid;gap:9px}.idea-strip{display:flex;align-items:center;gap:12px;margin-top:13px;padding:14px;border-radius:15px;background:#1b503e;color:#f7f0da}.idea-strip b{white-space:nowrap;font-size:18px}.idea-strip span{font-size:13px;line-height:1.5}
@media(max-width:390px){.evidence-grid{grid-template-columns:1fr}.family-mini-task{display:block}.family-mini-task b{display:block;margin-bottom:6px}.earth-answer span{width:40px;height:40px}}

/* 第4关起沿用第3关的固定版式层级 */
.earth-day-panel{gap:16px;margin:14px 0 0}.earth-day-panel .earth-module{padding:19px 16px;border-radius:22px;background:#f4f8f1;border:1px solid #d6e2d6;box-shadow:none}.earth-day-panel .module-heading{gap:11px;margin-bottom:15px}.earth-day-panel .module-heading h4{font-size:22px;line-height:1.2}.earth-day-panel .earth-module>p{margin:0;color:#4d6256;font-size:14px;line-height:1.85}.earth-day-panel .question-module h5{margin:2px 0 15px;color:#754e17;font-family:"Songti SC","STSong",serif;font-size:17px;text-align:center}.earth-day-panel .progress-module .archive-count{margin-top:14px}.earth-day-panel+.answer-button,.earth-day-panel+.secondary-button{width:auto;margin-top:30px}
.earth-cover .audio-guide img{width:42px;height:42px;border-radius:50%;object-fit:cover;object-position:50% 32%;border:2px solid #fffef4}.earth-cover .audio-guide>b{order:3;flex:0 0 auto}.earth-cover .audio-progress{display:block;height:3px;margin-top:6px;border-radius:3px;background:rgba(39,93,70,.13);overflow:hidden}.earth-cover .audio-progress em{display:block;width:0;height:100%;background:#2c7658}
.image-placeholder{display:grid;place-items:center;align-content:center;gap:5px;min-height:240px;margin-bottom:14px;border:1.5px dashed #9eb7a6;border-radius:18px;background-color:#e8f0e8;background-position:center;background-repeat:no-repeat;background-size:cover;color:#456657;text-align:center;overflow:hidden}.image-placeholder span{padding:7px 11px;border-radius:999px;background:rgba(255,255,250,.88);font-weight:800}.image-placeholder small{padding:4px 8px;border-radius:999px;background:rgba(255,255,250,.78);color:#71867a}.china-map-placeholder{background-image:url("assets/day4-china-map.png")}.route-map-placeholder{min-height:190px;margin:13px 0 0;background-image:url("assets/day4-route-task.png")}
.location-story{display:grid;gap:9px}.location-story article{display:grid;grid-template-columns:35px 1fr;align-items:center;gap:10px;padding:11px 13px;border:1px solid #d4dfd5;border-radius:14px;background:#fff}.location-story i{display:grid;place-items:center;width:31px;height:31px;border-radius:50%;background:#dfeae0;color:#245f47;font-style:normal;font-weight:900}.location-story b{display:block;color:#205b43;font-size:14px}.location-story p{margin:3px 0 0;color:#617269;font-size:12px;line-height:1.6}.location-story .location-answer{border-color:#d9bd80;background:#fff9e9}.location-story .location-answer i{background:#b7882e;color:#fff}
.earth-day-panel .family-mini-task{display:block;margin-top:15px;padding:15px 14px;border-radius:16px;background:#e5efe4}.route-task-copy{display:grid;gap:6px}.route-task-copy b{color:#176747;font-size:15px}.route-task-copy span{color:#526a5e;font-size:12px;line-height:1.7}.earth-answer small{display:block;margin:0 auto 12px;color:#e3eddf;font-size:12px;line-height:1.3}.earth-day-panel .earth-answer span{position:relative;display:inline-block;box-sizing:border-box;width:42px;height:42px;padding:0;border:1.5px dashed rgba(255,255,255,.68);border-radius:11px;background:rgba(255,255,255,.08);color:transparent;font-size:0;vertical-align:middle}.earth-day-panel .earth-answer span:after{content:"?";position:absolute;inset:0;display:grid;place-items:center;color:#f3e3aa;font-family:Arial,sans-serif;font-size:20px;font-weight:900;line-height:1;text-align:center;transform:translateY(-1px)}.earth-day-panel .earth-answer small{white-space:nowrap}.earth-day-panel .archive-module>p{padding:0;background:none}.earth-day-panel .archive-module>b{display:none}.earth-day-panel .next-letter{margin:14px 2px 0!important}
.key-green{color:#1f7652;font-weight:900}.earth-family-task{margin:0;padding:19px 16px;border:1px solid #d6e2d6;border-radius:22px;background:#edf4ed;box-shadow:none}.earth-family-task h4{margin:0 0 11px;color:#1d4f3c;font-family:"Songti SC","STSong",serif;font-size:16px;line-height:1.35;white-space:nowrap}.earth-family-task .route-task-copy span{display:block;color:#526a5e;font-size:12px;line-height:1.75}.earth-day-panel .earth-answer small{font-size:11px}.earth-day-panel .archive-preview p{font-size:12px!important;white-space:nowrap}
.earth-family-task>p{margin:0;color:#526a5e;font-size:12px;line-height:1.75}
.earth-story-image{display:block;box-sizing:border-box;width:100%;min-height:220px;margin:0 0 14px;overflow:hidden;border:1px solid #d5dfd5;border-radius:18px;background:#e8f0e8}.earth-story-image img{display:block;width:100%;height:auto}.earth-story-image.has-image{min-height:0;background:none}.earth-story-image-compact{min-height:120px}
.field-clue-list{display:grid;gap:9px}.field-clue-list article{display:grid;grid-template-columns:34px 1fr;align-items:center;gap:10px;padding:11px 13px;border:1px solid #d4dfd5;border-radius:14px;background:#fff}.field-clue-list i{display:grid;place-items:center;width:31px;height:31px;border-radius:50%;background:#dfeae0;color:#245f47;font-style:normal;font-weight:900}.field-clue-list b{display:block;color:#205b43;font-size:14px}.field-clue-list p{margin:3px 0 0;color:#617269;font-size:12px;line-height:1.6}
.character-opening{margin-bottom:13px}.character-opening p{margin:9px 3px 0;color:#617269;font-size:12px;line-height:1.7}.story-image{min-height:190px;border:1.5px dashed #9eb7a6;border-radius:15px;background-color:#e8f0e8;background-position:center;background-repeat:no-repeat;background-size:cover;overflow:hidden}.character-strip{min-height:105px;border-radius:14px;background-image:url("assets/day4-character.png");background-size:contain}.illustrated-location-story article{display:block;padding:12px}.illustrated-location-story .story-copy{display:grid;grid-template-columns:35px 1fr;align-items:center;gap:10px}.illustrated-location-story .story-image{margin-top:11px}.zhejiang-map-placeholder{background-image:url("assets/day4-zhejiang-map.png")}.tiantai-map-placeholder{background-image:url("assets/day4-tiantai-map.png")}.zhedong-map-placeholder{background-image:url("assets/day4-zhedong-map.png")}.illustrated-location-story .location-answer{display:block}.route-map-placeholder:empty{color:transparent}
.auto-story-image{display:block;width:100%;height:auto}.story-image.has-image,.image-placeholder.has-image{min-height:0;padding:0;border-style:solid;background:none;align-content:initial}.story-image.has-image .auto-story-image,.image-placeholder.has-image .auto-story-image{border-radius:inherit}.character-strip,.route-map-placeholder{background-image:none!important}
.earth-day-panel .fact-note{box-sizing:border-box;width:100%;margin:14px 0 0!important;line-height:1.75!important;text-align:left!important;white-space:normal!important;overflow-wrap:anywhere;word-break:normal}.day5-nature-story{gap:12px;text-align:left}.day5-nature-story article,.day5-nature-story .story-copy>div{min-width:0}.day5-nature-story .story-copy b,.day5-nature-story .story-copy p{display:block;text-align:left!important;white-space:normal!important;overflow-wrap:anywhere}.earth-family-task{text-align:left}.earth-family-task h4,.earth-family-task>p{text-align:left!important;white-space:normal!important;overflow-wrap:anywhere}
.earth-day-panel>*{min-width:0;max-width:100%}.earth-cover>p,.earth-cover>h3,.earth-cover>span{min-width:0;max-width:100%;white-space:normal!important;overflow-wrap:anywhere}.earth-cover .audio-guide{box-sizing:border-box;display:flex;width:100%;min-width:0;max-width:100%;overflow:hidden}.earth-cover .audio-guide>span{flex:1 1 auto;min-width:0;max-width:100%;overflow:hidden}.earth-cover .audio-guide strong,.earth-cover .audio-guide small{display:block;max-width:100%;white-space:normal;overflow-wrap:anywhere}.earth-cover .audio-progress{max-width:100%}
.day6-opening{display:grid;gap:9px;margin-bottom:16px}.day6-opening p,.day6-copy p,.day6-people-story p,.day6-reasons p{margin:0;color:#536a5e;font-size:12px;line-height:1.75;text-align:left;white-space:normal!important;overflow-wrap:anywhere}.day6-concepts{display:grid;gap:12px}.day6-concepts>article{min-width:0;padding:14px 12px;border:1px solid #d4dfd5;border-radius:16px;background:#fff}.day6-label{display:inline-block;margin-bottom:5px;color:#9b722c;font-size:10px;font-weight:900;letter-spacing:.08em}.day6-copy h6,.day6-reasons h6{margin:0 0 8px;color:#1d5b43;font-family:"Songti SC","STSong",serif;font-size:18px;text-align:left}.day6-copy blockquote,.day6-people-story blockquote{margin:10px 0;padding:10px 12px;border-left:3px solid #b88a31;background:#fff9eb;color:#725327;font-family:"Songti SC","STSong",serif;font-size:13px;font-weight:800;line-height:1.7;text-align:left}.day6-image,.day6-people-story .story-image{width:100%;min-height:190px;margin:12px 0 0}.day6-image.has-image,.day6-people-story .story-image.has-image{min-height:0}.day6-image.has-image img,.day6-people-story .story-image.has-image img{width:100%;height:auto}.day6-definition{margin-bottom:16px!important}.day6-divider{display:grid;gap:3px;margin:18px 0 12px;padding:13px 12px;border-radius:14px;background:#1b503e;color:#fff;text-align:left}.day6-divider span{font-family:"Songti SC","STSong",serif;font-size:18px;font-weight:900}.day6-divider small{color:#dce9e0;font-size:11px}.day6-people-story{gap:12px}.day6-people-story article{min-width:0}.day6-people-story .story-copy{align-items:start}.day6-people-story .story-copy>div{min-width:0}.day6-people-story .story-copy b{font-size:15px}.day6-people-story .story-copy p+p{margin-top:8px}.day6-people-story .history-note{color:#806c45;font-size:11px}.day6-reasons{display:grid;gap:8px;margin-top:15px}.day6-reasons>article{padding:11px 12px;border:1px solid #d5dfd5;border-radius:13px;background:#fff}.day6-reasons b{display:block;margin-bottom:3px;color:#176747;font-size:13px;text-align:left}
@media(max-width:410px){.earth-day-panel{grid-template-columns:minmax(0,1fr)}.earth-cover,.earth-day-panel .earth-module,.earth-family-task{width:100%;min-width:0;max-width:100%}.earth-cover h3{font-size:21px;line-height:1.35}.earth-cover>span{font-size:12px}.earth-cover .audio-guide{padding-left:10px;padding-right:10px}.earth-day-panel .earth-answer small{font-size:10.5px}.earth-day-panel .earth-answer span{width:40px;height:40px}.image-placeholder{min-height:210px}}
.day6-image.has-image img,.day6-people-story .story-image.has-image img{display:block}

/* 第9—15关：网站负责提示与归档，线下天台匣负责保存实景证据 */
.field-day-panel,.field-question-module,.field-question-module *{min-width:0}.field-opening{display:grid;gap:9px;margin:0 0 14px}.field-opening p{margin:0;color:#536a5e;font-size:12px;line-height:1.78;text-align:left;white-space:normal;overflow-wrap:anywhere}.field-image{box-sizing:border-box;width:100%;min-height:190px;margin:13px 0 15px;border:1.5px dashed #9eb7a6;border-radius:16px;background:#e8f0e8;overflow:hidden}.field-image.has-image{min-height:0;border-style:solid;background:none}.field-image img{display:block;width:100%;height:auto}.field-divider{display:grid;gap:3px;margin:17px 0 11px;padding:12px 13px;border-radius:14px;background:#1b503e;color:#fff;text-align:left}.field-divider span{font-family:"Songti SC","STSong",serif;font-size:17px;font-weight:900;line-height:1.4}.field-divider small{color:#dce9e0;font-size:10.5px;line-height:1.55}.field-story-list{display:grid;gap:9px;margin:0 0 13px}.field-story-list article{display:grid;grid-template-columns:33px minmax(0,1fr);align-items:start;gap:10px;padding:11px 12px;border:1px solid #d4dfd5;border-radius:14px;background:#fff;text-align:left}.field-story-list i{display:grid;place-items:center;width:31px;height:31px;border-radius:50%;background:#dfeae0;color:#245f47;font-style:normal;font-weight:900}.field-story-list b{display:block;color:#205b43;font-size:14px;line-height:1.45}.field-story-list p{margin:4px 0 0;color:#617269;font-size:11.5px;line-height:1.7;white-space:normal;overflow-wrap:anywhere}.field-route{display:flex;flex-wrap:wrap;gap:7px;margin:0 0 14px}.field-route span{padding:7px 10px;border:1px solid #ccdccf;border-radius:999px;background:#fff;color:#246047;font-size:11px;line-height:1.2;white-space:nowrap}.field-quote{margin:14px 0;padding:12px 13px;border-left:4px solid #b88a31;background:#fff9eb;color:#725327;font-family:"Songti SC","STSong",serif;font-size:16px;font-weight:800;line-height:1.65;text-align:left}.field-quote small{display:block;margin-top:5px;color:#806c54;font-family:inherit;font-size:10.5px;font-weight:400}.field-keyword-note{margin-top:15px;padding:13px;border:1px solid #cdddcf;border-radius:14px;background:#e5efe4;text-align:left}.field-keyword-note b{display:block;margin-bottom:4px;color:#176747;font-size:13px}.field-keyword-note p{margin:0;color:#526a5e;font-size:11px;line-height:1.7}.earth-day-panel .field-answer{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;padding:15px 10px}.earth-day-panel .field-answer>small{flex:0 0 100%;margin-bottom:4px;white-space:normal}.earth-day-panel .field-answer .field-answer-group{display:flex;width:auto;height:auto;margin:0;padding:0;border:0;border-radius:0;background:none;color:inherit;font-size:inherit}.earth-day-panel .field-answer .field-answer-group:after{content:none}.earth-day-panel .field-answer .field-answer-group i{display:grid;place-items:center;box-sizing:border-box;width:39px;height:39px;margin:2px;border:1.5px dashed rgba(255,255,255,.68);border-radius:10px;background:rgba(255,255,255,.08);color:#f3e3aa;font-family:Arial,sans-serif;font-size:19px;font-style:normal;font-weight:900;line-height:1}.field-day-panel .archive-preview p,.field-day-panel .next-letter{white-space:normal!important;overflow-wrap:anywhere}.field-day-panel .earth-family-task h4{white-space:normal}
@media(max-width:410px){.field-divider span{font-size:16px}.field-story-list article{grid-template-columns:31px minmax(0,1fr);padding:10px}.earth-day-panel .field-answer{gap:3px;padding-left:6px;padding-right:6px}.earth-day-panel .field-answer .field-answer-group i{width:35px;height:35px;margin:1.5px;font-size:17px}.field-image{min-height:175px}}

/* 第9—15关文字与口令框的移动端精排 */
.field-day-panel p,.field-day-panel b,.field-day-panel h3,.field-day-panel h4,.field-day-panel h5,.field-day-panel small{line-break:strict;word-break:normal;text-wrap:pretty;hanging-punctuation:first last}.field-opening p,.field-story-list p,.field-keyword-note p,.field-day-panel .archive-preview p,.field-day-panel .next-letter{overflow-wrap:break-word}.earth-day-panel .field-answer{align-items:center}.earth-day-panel .field-answer>small{text-align:center}.earth-day-panel .field-answer .field-answer-group{align-items:center;justify-content:center;line-height:1}.earth-day-panel .field-answer .field-answer-group i{display:flex;align-items:center;justify-content:center;padding:0 0 2px;line-height:1;text-align:center}
.field-day-panel .field-question-module>h5{width:100%;text-align:left!important}.day9-panel .field-question-module>h5{white-space:nowrap}
.field-day-panel .field-action-note{display:block;box-sizing:border-box;width:100%;max-width:100%;margin:14px 0 8px!important;padding:11px 13px;border-left:4px solid #b88a31;background:#fff9eb;color:#526a5e!important;font-size:11.5px!important;line-height:1.75!important;text-align:left!important;white-space:normal!important;overflow-wrap:anywhere!important;word-break:normal!important}
.earth-day-panel .field-answer .field-answer-group i{position:relative;display:grid;place-items:center;padding:0;color:transparent;font-size:0;line-height:1;text-align:center;text-indent:0}
.earth-day-panel .field-answer .field-answer-group i:after{content:"？";position:absolute;inset:0;display:grid;place-items:center;color:#f3e3aa;font-family:"Microsoft YaHei","PingFang SC",sans-serif;font-size:19px;font-style:normal;font-weight:900;line-height:1;transform:translateY(1px)}
@media(max-width:410px){.earth-day-panel .field-answer .field-answer-group i:after{font-size:17px}}
.day10-panel .field-route{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));box-sizing:border-box;width:100%;gap:7px;margin:0 0 14px}
.day10-panel .field-route span{display:grid;place-items:center;box-sizing:border-box;width:100%;height:32px;padding:0 3px;text-align:center}