:root{color-scheme:light;--ink:#183247;--muted:#557080;--line:#d7e3e7;--paper:#f5f9fa;--white:#fff;--teal:#087e80;--teal-dark:#076569;--sun:#f6c65b;--shadow:0 8px 32px rgba(18,59,76,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;line-height:1.75}a{color:inherit}button,input,textarea{font:inherit}.site{max-width:1160px;margin:auto;padding:0 28px}.site-header{height:84px;display:flex;justify-content:space-between;align-items:center;gap:20px;border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:11px;text-decoration:none;font-size:1.15rem;font-weight:800;letter-spacing:.02em}.brand-mark{display:grid;place-items:center;width:40px;height:40px;border-radius:12px 12px 12px 2px;background:var(--teal);color:white;font-size:1.25rem}.site-header nav{display:flex;align-items:center;gap:26px;font-size:.92rem;font-weight:700}.site-header nav a{text-decoration:none}.nav-create{padding:10px 18px;border:1px solid var(--ink);border-radius:8px}.hero{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;min-height:470px;padding:66px 0}.hero h1{font-size:clamp(2.8rem,5.7vw,5.5rem);line-height:1.18;letter-spacing:-.065em;margin:12px 0 28px;font-weight:900}.hero p:not(.eyebrow){max-width:31em;font-size:1.02rem;color:var(--muted);margin-bottom:30px}.eyebrow{color:var(--teal);font-size:.85rem;font-weight:800;letter-spacing:.08em;margin:0}.button{display:inline-block;border:0;border-radius:9px;padding:13px 24px;background:var(--teal);color:#fff;text-decoration:none;font-weight:800;cursor:pointer;box-shadow:0 5px 0 var(--teal-dark)}.button:hover{background:var(--teal-dark)}.button.small{padding:9px 17px;font-size:.88rem}.hero-art{min-height:320px;position:relative;background:radial-gradient(circle at 45% 55%,#d8eff0 0 35%,transparent 36%)}.note{position:absolute;width:245px;min-height:144px;padding:23px;border:1px solid #dce5e6;border-radius:14px;background:white;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:10px;transform:rotate(-7deg)}.note i{width:13px;height:13px;border-radius:50%;background:var(--sun);position:absolute;right:17px;top:14px}.note span{font-size:.76rem;color:var(--muted)}.note b{font-size:1.15rem}.note-a{top:48px;left:12px}.note-b{top:157px;right:0;transform:rotate(7deg)}.note-b i{background:#69bbb6}.listing{padding:18px 0 55px}.section-title{display:flex;align-items:baseline;gap:20px;border-bottom:2px solid var(--ink);margin-bottom:22px}.section-title h2,.replies h2{font-size:1.45rem;margin:0 0 12px}.section-title p{color:var(--muted);font-size:.85rem;margin:0}.board-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.board-card{background:white;border:1px solid var(--line);border-radius:13px;min-height:178px;padding:23px;display:flex;flex-direction:column;text-decoration:none;transition:transform .15s,box-shadow .15s}.board-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.board-card strong{font-size:1.07rem;line-height:1.4;margin:9px 0 8px}.board-card span:not(.card-pin){color:var(--muted);font-size:.88rem;line-height:1.5;flex:1}.board-card small{color:var(--muted);font-size:.75rem}.card-pin{width:15px;height:15px;border-radius:50%;background:var(--sun);box-shadow:inset 0 -3px 0 rgba(0,0,0,.1)}.more{display:block;text-align:center;margin:28px auto;color:var(--teal);font-weight:700}.empty{padding:35px;background:white;border:1px dashed var(--line);border-radius:10px;color:var(--muted)}.narrow{max-width:680px;margin:0 auto 70px}.back{padding:28px 0 15px;color:var(--teal);font-size:.88rem;font-weight:700}.back a{text-decoration:none}.back a:before{content:"← ";}.form-heading{margin:18px 0 28px}.form-heading h1{font-size:2.35rem;line-height:1.3;margin:8px 0}.form-heading h2{font-size:1.7rem;margin:0}.form-heading p{color:var(--muted);max-width:48em}.panel{background:white;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}.form-panel{padding:30px;display:flex;flex-direction:column;gap:22px}.form-panel h2{margin:0}.form-panel label:not(.choice){display:flex;flex-direction:column;gap:7px;font-weight:700}.form-panel label span{font-size:.75rem;color:var(--teal);font-weight:700}.form-panel small{color:var(--muted);font-size:.76rem;font-weight:400}.form-panel input:not([type=radio]),.form-panel textarea{width:100%;border:1px solid #9eb7c1;border-radius:7px;background:#fff;padding:11px 13px;color:var(--ink);font-weight:400}.form-panel textarea{resize:vertical}.form-panel fieldset{border:1px solid var(--line);border-radius:8px;padding:14px 18px}.form-panel legend{font-weight:700;padding:0 5px}.choice{display:block;margin:5px 0;cursor:pointer}.choice input{accent-color:var(--teal);margin-right:8px}.trap{position:absolute;left:-10000px}.turnstile{min-height:66px}.board-head{display:flex;justify-content:space-between;align-items:end;gap:30px;padding:12px 0 30px;border-bottom:2px solid var(--ink)}.board-head h1{font-size:clamp(2rem,4vw,3.3rem);line-height:1.25;margin:10px 0 8px}.board-head p:not(.eyebrow){color:var(--muted);margin:0}.board-actions{display:flex;align-items:center;gap:18px;white-space:nowrap}.board-actions>a:not(.button){font-size:.84rem;color:var(--muted)}.thread-list{border-top:1px solid var(--line)}.thread-row{display:flex;justify-content:space-between;gap:20px;align-items:center;padding:17px 8px;text-decoration:none;border-bottom:1px solid var(--line)}.thread-row:hover{background:#ebf4f5}.thread-row span{display:flex;flex-direction:column;gap:2px}.thread-row strong{font-size:1rem}.thread-row small,.thread-row time{font-size:.8rem;color:var(--muted)}.thread-heading h2{font-size:1.8rem;line-height:1.4}.post{background:white;border:1px solid var(--line);border-radius:10px;padding:23px;margin:12px 0}.first-post{border-left:5px solid var(--teal)}.post-meta{display:flex;gap:15px;align-items:center;font-size:.87rem}.post-meta time{color:var(--muted);font-size:.77rem}.post-body{margin-top:14px;line-height:1.9;overflow-wrap:anywhere;white-space:normal}.replies{padding-top:25px}.reply-form{margin:42px 0 80px}.reply-form h2{margin:0;padding:24px 30px 0}.reply-form .form-panel{border:0;box-shadow:none;padding-top:15px}.moderation{margin-top:14px}.moderation button,.logout button{border:0;background:transparent;color:#a04448;text-decoration:underline;cursor:pointer;font-size:.77rem;padding:0}.logout{text-align:right;margin-top:18px}.error{padding:100px 0}.error h1{font-size:1.7rem;margin:8px 0 30px}.ad{margin:20px 0 60px;border:1px dashed #bccdd3;border-radius:10px;padding:10px 14px;text-align:center;background:#fff}.ad-label{display:block;text-align:left;font-size:.65rem;color:var(--muted)}.ad-empty{padding:17px;color:#8ba1ab;font-size:.83rem}.ad img{max-width:100%;max-height:180px;object-fit:contain}footer{border-top:1px solid var(--line);padding:27px 0 45px;display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:.82rem}footer span:last-child{display:flex;gap:18px}footer a{text-decoration:none}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--sun);outline-offset:3px}@media(max-width:760px){.site{padding:0 18px}.site-header{height:72px}.site-header nav{gap:12px;font-size:.78rem}.nav-create{padding:7px 10px}.brand{font-size:.95rem}.brand-mark{width:34px;height:34px}.hero{grid-template-columns:1fr;min-height:0;padding:48px 0 20px;gap:0}.hero-art{min-height:235px}.note{width:205px;min-height:118px;padding:17px}.note-a{top:20px}.note-b{top:104px}.board-grid{grid-template-columns:1fr 1fr}.section-title{display:block}.section-title p{margin-bottom:12px}.board-head{display:block}.board-actions{margin-top:20px}.form-panel{padding:20px}footer{display:block}footer span:last-child{flex-wrap:wrap;margin-top:10px}}@media(max-width:520px){.site-header nav a:first-child{display:none}.board-grid{grid-template-columns:1fr}.hero h1{font-size:2.9rem}.thread-row{align-items:start;flex-direction:column;gap:2px}.post{padding:17px}footer span:last-child{gap:12px}}