:root{--orange:#c46636;--deep:#ad4e26;--ink:#684532;--muted:#876b57;--line:#e8c9a8;--paper:#fffdf6;--cream:#fff3d9;--peach:#fbe5d0;--teal:#4e887e;--white:#fff;--shadow:0 8px 0 #eed7b840;--column:480px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:86px}body{margin:0;background:var(--cream);color:var(--ink);font-family:"Hiragino Maru Gothic ProN","Hiragino Sans","Yu Gothic",sans-serif;font-size:15.4px;line-height:1.9}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;cursor:pointer}a,button,summary{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--teal);outline-offset:4px}h1,h2,h3,p{margin:0}img{display:block;max-width:100%}.room{position:fixed;inset:0;background:var(--cream) url('assets/autumn-room.png') center/cover no-repeat;z-index:-1}.page-column{position:relative;width:var(--column);margin:0 auto;min-height:100vh;background:var(--paper);box-shadow:0 0 0 1px #dcbe9460,0 0 60px #78513012;padding-bottom:68px}.side{position:fixed;width:calc((100vw - var(--column))/2);top:0;height:100dvh;min-height:620px;display:flex;align-items:center;flex-direction:column;text-align:center;padding:11vh 25px 20px}.side-left{left:0}.side-right{right:0;padding-top:12vh}.side-logo{display:block}.side-logo>small{display:block;font-size:clamp(9.9px,0.957vw,14.3px);letter-spacing:.13em}.side-logo>span{font-size:clamp(20.9px,2.2vw,33px);font-weight:700;line-height:2}.orange{color:var(--orange)}.side-logo>em{display:block;font:italic clamp(24.2px,2.2vw,33px) Georgia,serif;color:var(--orange);letter-spacing:.04em}.side-message{font-size:clamp(11px,1.1vw,15.4px);margin-top:25px;letter-spacing:.12em;line-height:2.1}.side-date{font-size:9.9px;letter-spacing:.13em;margin-top:23px}.side-caption{position:absolute;bottom:7vh;font:italic 29.7px 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a:first-child{background:var(--orange);color:var(--white)}.bottom-nav a>span{font-size:18.7px}.skip{position:fixed;left:10px;top:-100px;background:var(--white);padding:10px;z-index:50}.skip:focus{top:10px}dialog{width:min(430px,calc(100% - 28px));max-height:85dvh;border:1px solid var(--line);border-radius:23px;padding:23px;background:var(--paper);color:var(--ink)}dialog::backdrop{background:#3b2e2680}.dialog-top{display:flex;align-items:center;justify-content:space-between}.dialog-top>button{border:1px solid var(--line);width:40px;height:40px;border-radius:50%;background:var(--cream);font-size:26.4px}dialog h2{font-size:23.1px;line-height:1.7;margin:18px 0}dialog p{font-size:13.2px;line-height:2}dialog .download{margin-top:18px}dialog .primary{font-size:13.2px;margin-bottom:12px}.modal-steps{display:grid;gap:9px;margin:20px 0}.modal-steps span{padding:12px 15px;background:var(--cream);border-radius:12px;font-size:13.2px}dialog iframe{width:100%;aspect-ratio:16/9;border:0}dialog .video-cover{padding:35px 20px;margin-bottom:20px;display:flex;flex-direction:column;align-items:center}dialog .play{position:static;margin-bottom:12px}
@media(min-width:1600px){:root{--column:500px}.side{padding-top:15vh}.side-right{padding-top:14vh}.side-duo{width:310px;max-height:36vh}.side-bubble{margin-top:6vh}}
@media(max-width:1100px){:root{--column:450px}.side{padding:12vh 14px 20px}.side-right{padding-top:12vh}.side-logo>span{font-size:20.9px}.side-logo>small{font-size:8.8px}.side-nav{padding:5px 12px}.side-nav a{font-size:11px;gap:8px}.side-bubble{font-size:11px;padding:10px 21px}.side-duo{width:100%;max-height:220px}.side-message{font-size:11px}.side-date{font-size:7.7px}.side-caption{font-size:26.4px}}
@media(max-width:800px){:root{--column:480px}.side{display:none}.page-column{width:min(100%,var(--column))}.bottom-nav{width:min(100%,var(--column))}.room{background-position:center}.topbar{height:62px}.hero{padding-top:25px}}
@media(max-width:480px){body{background:var(--paper)}.page-column{box-shadow:none}.topbar{padding:0 20px}.hero h1{font-size:31.9px;letter-spacing:.035em}.hero-label{font-size:9.9px;padding:5px 13px}.hero-sub{font-size:11px}.hero-picture{padding:17px 12px 0}.hero-picture img{height:230px}.speech{left:20px;font-size:9.9px;padding:9px 13px}.event-name{font-size:11px}.spark-one{font-size:22px;left:16px;top:137px}.spark-two{font-size:20.9px;right:20px;top:228px}.welcome-counter{padding:19px 25px 25px}.welcome-counter>small{font-size:8.8px}.intro-section{padding:37px 26px}.intro-section h2{font-size:18.7px}.intro-section>p:not(.mini-label){font-size:13.2px}.notice{padding:14px}.notice strong{font-size:11px}.notice p{font-size:11px}.section{padding:39px 24px}.section-heading h2{font-size:25.3px}.section-heading>p:last-child:not(.mini-label){font-size:12.1px}.card-body{padding:19px 19px 7px}.card-body h3{font-size:16.5px}.card-body>p:last-child{font-size:13.2px}.card-bottom{padding:8px 19px 18px}.art-label{font-size:30.8px}.movie-section h2{font-size:20.9px}.video-illustration{height:163px}.video-cover>strong{font-size:15.4px}.video-cover>small{font-size:9.9px}.howto .section-heading h2{font-size:22px}.steps h3{font-size:14.3px}.steps article{padding:17px 15px;gap:12px}.profile-section>p:not(.profile-en):not(.profile-name){font-size:12.1px}.closing h2{font-size:18.7px}.bottom-nav{padding-bottom:max(8px,env(safe-area-inset-bottom));height:calc(64px + env(safe-area-inset-bottom))}.page-column{padding-bottom:calc(68px + env(safe-area-inset-bottom))}}
@media(max-width:350px){.hero h1{font-size:27.5px}.hero-picture img{height:205px}.speech{font-size:8.8px;left:10px}.section{padding-left:18px;padding-right:18px}.intro-section{padding-left:20px;padding-right:20px}.intro-section h2{font-size:17.6px}.section-heading h2{font-size:23.1px}.movie-section h2{font-size:18.7px}.notice strong{font-size:9.9px}.art-label{font-size:28.6px}.hero-spark{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

.left-panel{background:#fffdf6eb;border:1px solid var(--line);border-radius:100px 100px 24px 24px;padding:36px 23px 28px;max-width:300px;box-shadow:0 6px 0 #efcfaa40}.side-left{padding-top:8vh}.side-left .side-message{margin-top:20px}.side-left .side-date{display:block;margin-top:19px}@media(max-width:1100px){.left-panel{padding:30px 15px 24px}.side-left{padding-top:9vh}.side-logo>span{font-size:19.8px}}

.video-player{width:100%;aspect-ratio:16/9;background:#000;border-radius:14px;overflow:hidden}.video-player iframe{display:block;width:100%;height:100%;border:0}.video-watch-hint{font-size:12px;line-height:1.8;text-align:center;margin:12px 0 0;color:var(--muted)}

.faq-sources a{text-decoration:underline;text-underline-offset:3px}.faq .faq-sources{font-size:11px}

.faq .line-cta{display:flex;align-items:center;justify-content:center;gap:12px;width:100%;padding:12px;background:#06c755;color:#fff;border:1px solid #06c755;border-radius:12px;box-shadow:none;text-decoration:none;font-size:13px;font-weight:700;line-height:1.5;transform:none}.faq .line-cta:hover{background:#06c755;transform:none;box-shadow:none}.faq .line-cta img{display:block;flex:0 0 40px;width:40px;height:40px;object-fit:contain}.faq .line-cta:focus-visible{outline:3px solid #126b35;outline-offset:3px}@media(max-width:360px){.faq .line-cta{gap:8px;font-size:12px;padding:10px}}