#app[data-v-1ede5805]{font-family:Noto Serif SC,Noto Serif,Noto Serif CJK SC,Noto Serif CJK,Source Han Serif SC,source-han-serif-sc,Times New Roman,Georgia,serif;font-style:normal;font-weight:500}.ut_link[data-v-1ede5805]{color:#091e32}.blue_link[data-v-1ede5805],.blue_link[data-v-1ede5805]:hover,.ut_link[data-v-1ede5805]:hover{color:#4f81af}.yellow_link[data-v-1ede5805]{color:#fcd646}.yellow_link[data-v-1ede5805]:hover{color:#fde69a}.brown_link[data-v-1ede5805]{color:#925328}.brown_link[data-v-1ede5805]:hover{color:#fcd646}.ut_desc[data-v-1ede5805]{color:#666}.only_link[data-v-1ede5805]{color:inherit;text-decoration:none}.ut_padding[data-v-1ede5805]{padding:2rem 0}.slash[data-v-1ede5805]{color:#999;padding:0 8px}.light_button[data-v-1ede5805] .n-button__content{text-shadow:0 0 5px rgba(0,0,0,.5)}.login_button[data-v-1ede5805],.lostpassword_button[data-v-1ede5805],.signup_button[data-v-1ede5805]{background-color:#fcd646;color:#121212;font-family:Noto Serif SC,Noto Serif,Noto Serif CJK SC,Noto Serif CJK,Source Han Serif SC,source-han-serif-sc,Times New Roman,Georgia,serif;font-weight:900;transition:background-color .2s ease-in-out}.login_button[data-v-1ede5805]:hover,.lostpassword_button[data-v-1ede5805]:hover,.signup_button[data-v-1ede5805]:hover{background-color:#fde69a;color:#fde69a;cursor:pointer;transition:background-color .5s ease-in-out}.login_button[data-v-1ede5805]:active,.lostpassword_button[data-v-1ede5805]:active,.signup_button[data-v-1ede5805]:active{background-color:#fcd646;color:#fde69a}.anchor-highlight[data-v-1ede5805]{background-color:#fde69a;border-radius:10px;transition:background-color .2s ease-in;transition:background-color 2s ease-out}.anchor-highlight-end[data-v-1ede5805]{background-color:transparent}@media only screen and (max-width:1024px){.tablet_hide[data-v-1ede5805]{display:none}.tablet_show[data-v-1ede5805]{display:block}}@media only screen and (max-width:600px){.mobile_hide[data-v-1ede5805]{display:none}.mobile_show[data-v-1ede5805]{display:block}}.desktop_hide[data-v-1ede5805]{display:none}.desktop_show[data-v-1ede5805]{display:block}.lesson_page_container[data-v-1ede5805]{display:flex;flex-direction:row;gap:2.5rem;justify-content:space-between;margin-bottom:2.5rem;margin-top:2.5rem}.left_container[data-v-1ede5805]{flex:3;float:left}.right_container[data-v-1ede5805]{flex:6;float:right;max-width:100%;overflow:hidden;width:100%}.course_page_breadcrumb[data-v-1ede5805]{align-items:center;display:flex;flex-direction:row;height:80px;min-height:80px}.breadcrumb-container[data-v-1ede5805],.course_page_breadcrumb[data-v-1ede5805]{overflow:hidden;width:100%}.breadcrumb_item_url[data-v-1ede5805]{color:#666;display:inline-block;max-width:200px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.breadcrumb_item_url[data-v-1ede5805]:hover{color:#666}.breadcrumb_item_current[data-v-1ede5805]{color:#000;display:inline-block;max-width:300px}.breadcrumb_ellipsis[data-v-1ede5805],.breadcrumb_item_current[data-v-1ede5805]{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.title_container[data-v-1ede5805]{display:flex;flex-direction:column;justify-content:space-between;margin-bottom:80px}.lesson_title_wrapper[data-v-1ede5805]{align-items:flex-start;display:flex;flex-direction:column;gap:.5rem}.lesson_title[data-v-1ede5805]{font-size:2.5rem;font-weight:900;line-height:1.3;margin-bottom:20px;margin-top:.5rem}.author_container[data-v-1ede5805]{align-items:center;display:flex;flex-direction:row;margin-bottom:20px;margin-top:20px}.author_avatar[data-v-1ede5805]{border-radius:50%;margin-right:20px;width:60px}.author_info[data-v-1ede5805]{display:flex;flex-direction:column;justify-content:space-between}.author[data-v-1ede5805]{font-size:1rem;font-weight:900}.published_time[data-v-1ede5805]{color:#666;font-size:.8rem;margin-top:5px}.category_name_div[data-v-1ede5805],.lesson_category[data-v-1ede5805]{margin-bottom:10px;margin-top:20px}.lesson_category[data-v-1ede5805]{color:#4f81af;font-size:1.2rem;font-weight:900;transition:color .3s ease}.lesson_category[data-v-1ede5805]:hover{color:#3f678c}.category_gap[data-v-1ede5805]{margin-right:.5rem}.lesson_tag_ul[data-v-1ede5805]{align-items:center;color:#666;display:flex;flex-direction:row;flex-wrap:wrap;justify-content:flex-start}.lesson_tag_li[data-v-1ede5805]{margin-bottom:20px;margin-top:20px}.lesson_tag[data-v-1ede5805]:before{content:"#";margin-right:5px}.lesson_tag[data-v-1ede5805]{color:#666;margin-right:20px;transition:color .3s ease}.lesson_tag[data-v-1ede5805]:hover{color:#4f81af}hr.content_hr[data-v-1ede5805]{border:0;border-top:1px solid #e0e0e0;margin:1.5rem 0}.comment_icon[data-v-1ede5805],.like_icon[data-v-1ede5805],.robot_icon[data-v-1ede5805]{color:#a9b7c0;margin-right:10px}.like_icon_active[data-v-1ede5805]{color:#e2264d}.comment_count[data-v-1ede5805],.like_count[data-v-1ede5805]{color:#666}.lesson_content_div[data-v-1ede5805]{font-size:1rem;line-height:2rem}.lesson_bottom_container[data-v-1ede5805]{display:flex;flex-direction:row;justify-content:space-between;margin-top:2rem;width:100%}.bottom_lesson_tag_container[data-v-1ede5805]{align-items:center;color:#666;display:flex;flex-direction:row;flex-wrap:wrap;justify-content:flex-start;width:50%}.bottom_button_group_container[data-v-1ede5805]{width:24rem}.button_group_container_mobile[data-v-1ede5805]{display:none}.bottom_author_container[data-v-1ede5805]{align-items:center;border:1px solid #e0e0e0;border-radius:15px;box-shadow:0 2px 8px #0000000d;display:flex;flex-direction:row;margin-bottom:30px;margin-top:30px;padding:25px;transition:transform .3s ease,box-shadow .3s ease}.bottom_author_container[data-v-1ede5805]:hover{box-shadow:0 4px 12px #0000001a;transform:translateY(-2px)}.bottom_author_avatar[data-v-1ede5805]{border-radius:50%;margin-right:20px;width:60px}.bottom_author_info[data-v-1ede5805]{display:flex;flex-direction:column;justify-content:space-between}.bottom_author[data-v-1ede5805]{font-size:1rem;font-weight:900}.bottom_author_description[data-v-1ede5805]{color:#666;font-size:.8rem;margin-top:5px}.article_catalog_title[data-v-1ede5805]{color:#4f81af;font-size:1.5rem;font-weight:900;margin-bottom:1rem;margin-top:2rem;overflow:hidden}.article_catalog_title[data-v-1ede5805]:after{border-top:1px solid #e0e0e0;content:"";display:inline-block;height:.5em;margin-left:10px;margin-right:-100%;margin-top:5px;vertical-align:middle;width:100%}.navigation-wrapper[data-v-1ede5805]{display:flex;justify-content:space-between;margin:2rem 0}.login_required_container[data-v-1ede5805]{align-items:center;background-color:#f9f9f9;border-radius:15px;box-shadow:0 2px 10px #0000000d;display:flex;flex-direction:column;margin:2rem 0;padding:4rem 1.5rem;text-align:center}.status_message[data-v-1ede5805]{line-height:2;margin-bottom:2.5rem;max-width:600px}.status_title[data-v-1ede5805]{color:#4f81af;font-size:2.2rem;font-weight:900;margin-bottom:1.5rem}.status_desc[data-v-1ede5805]{color:#666;font-size:1.3rem;margin-bottom:2rem}.purchase_required_container[data-v-1ede5805]{align-items:center;background-color:#f9f9f9;border-radius:15px;box-shadow:0 2px 10px #0000000d;display:flex;flex-direction:column;margin:2rem 0;padding:4rem 1.5rem;text-align:center}.purchase_required_content[data-v-1ede5805]{display:flex;flex-direction:column;gap:1.5rem}.purchase_message[data-v-1ede5805]{margin:1.5rem 0}.purchase_actions[data-v-1ede5805]{display:flex;gap:1.5rem;margin-top:1.5rem}.purchase_actions .n-button[data-v-1ede5805]{font-size:1.05rem;font-weight:500;padding:.6rem 1.5rem}.lesson_description[data-v-1ede5805]{background-color:#ffffffb3;border-left:4px solid #fcd646;border-radius:12px;color:#666;font-size:1.1rem;line-height:1.8;margin:1.5rem 0;padding:1.5rem}.preview_container[data-v-1ede5805]{border-radius:15px;box-shadow:0 4px 15px #0000001a;margin:2.5rem 0;max-width:100%;overflow:hidden;transition:transform .3s ease}.preview_container[data-v-1ede5805]:hover{transform:scale(1.01)}.lesson_preview_image[data-v-1ede5805]{border-radius:15px;max-height:400px;-o-object-fit:cover;object-fit:cover;width:100%}.button_group_container[data-v-1ede5805]{margin:1.5rem 0}@media only screen and (max-width:1200px){.lesson_title[data-v-1ede5805]{font-size:2.2rem}}@media only screen and (max-width:1024px){.lesson_page_container[data-v-1ede5805]{gap:.5rem;margin-bottom:2rem;margin-top:2rem}.lesson_image_div_mobile[data-v-1ede5805]{display:block}.bottom_button_group_container[data-v-1ede5805],.button_group_container[data-v-1ede5805]{width:18rem}.button_group_container_mobile[data-v-1ede5805]{display:block;width:18rem}.lesson_bottom_container[data-v-1ede5805]{display:flex;flex-direction:column;justify-content:space-between;width:100%}.bottom_lesson_tag_container[data-v-1ede5805]{align-items:center;color:#666;display:flex;flex-direction:row;flex-wrap:wrap;justify-content:flex-start;width:100%}.category_name_div[data-v-1ede5805]{margin-bottom:0;margin-top:.5rem}.title_container[data-v-1ede5805]{margin-bottom:2.5rem}.lesson_page_container[data-v-1ede5805]{flex-direction:column}.left_container[data-v-1ede5805]{flex:1;margin-right:0}.right_container[data-v-1ede5805]{flex:1;max-width:100%;overflow:hidden;width:100%}.catalog_container[data-v-1ede5805],.more_lesson_list[data-v-1ede5805]{display:none}.purchase_required_container[data-v-1ede5805]{margin:1.5rem 1rem;padding:1.5rem}.preview_container[data-v-1ede5805]{margin:1.5rem 0}.lesson_preview_image[data-v-1ede5805]{max-height:300px}.login_required_container[data-v-1ede5805]{margin:1.5rem 1rem;padding:3rem 1rem}}@media only screen and (max-width:600px){.course_page_breadcrumb[data-v-1ede5805]{height:auto;max-height:80px;min-height:60px;padding:10px 0}.breadcrumb_item_current[data-v-1ede5805],.breadcrumb_item_url[data-v-1ede5805]{max-width:120px}.lesson_title[data-v-1ede5805]{font-size:1.8rem;font-weight:900;margin-bottom:20px;margin-top:10px}.login_required_title[data-v-1ede5805]{font-size:1.5rem}.login_required_desc[data-v-1ede5805]{font-size:1rem}.login_required_container[data-v-1ede5805]{padding:2.5rem 1rem}.purchase_actions[data-v-1ede5805]{flex-direction:column;gap:.8rem}.lesson_preview_image[data-v-1ede5805]{max-height:200px}.purchase_required_container[data-v-1ede5805]{margin:1rem .5rem;padding:1.2rem}.bottom_author_container[data-v-1ede5805]{margin-bottom:20px;margin-top:20px;padding:15px}.navigation-wrapper[data-v-1ede5805]{flex-direction:column;gap:1rem}.navigation-wrapper .nav-button[data-v-1ede5805],.navigation-wrapper .nav-button .n-button[data-v-1ede5805]{width:100%}}@media only screen and (min-width:601px) and (max-width:900px){.breadcrumb_item_url[data-v-1ede5805]{max-width:150px}.breadcrumb_item_current[data-v-1ede5805]{max-width:200px}}