:root{--green: #1D9E75;--green-dark: #0F6E56;--red: #E24B4A;--navy: #14324f;--cream: #FCFBF3;--cream-border: #E8E2C8;--mint: #EEF6F2;--blue: #378ADD;--blue-dark: #185FA5;--blue-bg: #E6F1FB;--amber: #EF9F27;--amber-dark: #854F0B;--ink: #333333;--ink2: #555555;--ink3: #777777;--ink4: #999999;--line: #E0E0E0;--line2: #EEEEEE;--paper: #FAFAF7;--tag: #F2F2EE;--qline: #E8E8E8}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;font-family:-apple-system,Hiragino Kaku Gothic ProN,Yu Gothic,Meiryo,sans-serif;color:var(--ink);background:#fff;line-height:1.7;overflow-x:hidden}a{color:inherit;text-decoration:none}img{max-width:100%}button{font-family:inherit}.wrap{max-width:760px;margin:0 auto;min-height:100vh;display:flex;flex-direction:column}.fullbleed{width:100vw;margin-left:calc(50% - 50vw)}.fullbleed-inner{max-width:760px;margin:0 auto}.wrap>footer{margin-top:auto}.hdr{background:#fff;border-bottom:2px solid var(--green);width:100vw;margin-left:calc(50% - 50vw)}.hdr-inner{max-width:760px;margin:0 auto;padding:10px var(--pad);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:6px}.hdr .brand{display:flex;align-items:center;gap:9px}.hdr .brand .logo{width:19px;height:19px;border:2px dashed var(--green);border-radius:50%}.hdr .brand span{font-size:14px;font-weight:600}.hdr .nav{display:flex;align-items:center;gap:10px;font-size:11px;color:var(--ink2)}.hdr .nav a.chip{color:var(--ink2);background:var(--mint);padding:5px 10px;border-radius:3px}.hdr .nav a.login{color:#fff;background:var(--red);padding:5px 12px;border-radius:3px;font-weight:600}.hdr .nav a.plain{color:var(--ink2)}.hdr .nav a.nav-ic{display:inline-flex;align-items:center;gap:4px}.loginstate{background:var(--mint);width:100vw;margin-left:calc(50% - 50vw)}.loginstate-inner{max-width:760px;margin:0 auto;padding:11px var(--pad);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px}.loginstate .l{display:flex;align-items:center;gap:8px;color:var(--green-dark);font-size:13px}.loginstate .r{color:var(--ink2);font-size:12px}.hero{position:relative;background:var(--navy);padding:30px 22px;overflow:hidden}.hero .bgwords{position:absolute;inset:0;opacity:.14;font-family:Georgia,serif;color:#fff;font-size:13px;line-height:1.7;padding:8px 12px;user-select:none;overflow:hidden}.hero .card{position:relative;background:#fff;border-radius:16px;padding:26px;text-align:center;max-width:480px;margin:0 auto;box-shadow:0 4px 20px #0000002e}.hero .new{color:var(--red);font-size:12px;font-weight:600;margin:0 0 8px}.hero .sub{color:var(--ink3);font-size:13px;margin:0 0 4px}.hero .titlerow{display:inline-flex;align-items:center;gap:8px;margin:4px 0 6px}.hero .kako{background:var(--red);color:#fff;font-size:27px;font-weight:700;padding:3px 15px;border-radius:6px;letter-spacing:.05em}.hero .sokkuri{color:var(--ink);font-size:27px;font-weight:700}.hero .lead{color:var(--ink);font-size:15px;margin:14px 0 0}.hero .lead b{color:var(--red)}.hero .desc{color:var(--ink3);font-size:12px;margin:10px auto 0;max-width:400px}.sec{padding:18px 22px 8px;background:#fff}.sec h2{font-size:13px;font-weight:600;margin:0 0 10px;border-bottom:1px solid var(--green);padding-bottom:6px;color:var(--ink)}.weekly{margin:16px 22px 0;border:2px solid var(--blue);border-radius:10px;overflow:hidden;display:flex;cursor:pointer}.weekly .badge{background:var(--blue);color:#fff;padding:12px 14px;display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:92px;text-align:center}.weekly .badge small{font-size:11px;font-weight:600}.weekly .badge strong{font-size:17px;font-weight:700;line-height:1.3}.weekly .body{padding:12px 16px;flex:1}.weekly .body .q{font-size:12px;color:var(--ink4);margin:0 0 4px}.weekly .body .t{font-size:13px;color:var(--ink);margin:0 0 6px}.weekly .body .more{color:var(--blue-dark);font-size:12px;font-weight:600}.loginbar{background:var(--mint);border-radius:4px;padding:8px;text-align:center;margin:0 0 10px;color:var(--green-dark);font-size:13px;font-weight:600}.regbox{background:var(--cream);border:1px solid var(--cream-border);border-radius:6px;padding:16px 18px;text-align:center}.regbox p{font-size:12px;color:var(--ink3);margin:0 0 12px}.regbox .btn{background:var(--red);color:#fff;font-size:16px;font-weight:700;padding:13px;border-radius:6px;cursor:pointer;border:none;width:100%;display:block}.faq{text-align:center;margin:12px 0 0}.faq a{color:var(--blue-dark);font-size:12px;text-decoration:underline}.list{background:var(--paper);border-radius:6px;padding:14px 16px;display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:6px 14px}.list a{color:var(--blue-dark);font-size:13px;padding:3px 0}.compo{background:var(--paper);border-radius:6px;padding:14px 16px;display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:8px 14px;font-size:12px;color:var(--ink2)}.feat{background:var(--mint);padding:20px 22px;margin-top:14px}.feat .head{background:var(--green);color:#fff;text-align:center;padding:7px;border-radius:4px;font-size:14px;font-weight:600;margin-bottom:14px}.feat .item{margin-bottom:12px}.feat .item h3{font-size:14px;font-weight:600;color:var(--green-dark);margin:0 0 4px}.feat .item p{font-size:12px;color:var(--ink2);margin:0}.feat .item p mark{background:transparent;border-bottom:2px solid #FFE08A;color:inherit}.rel{background:#fff;padding:20px 22px 8px}.rel .title{text-align:center;font-size:14px;font-weight:600;margin:0 0 14px;padding-bottom:8px;border-bottom:1px solid #DDDDDD}.rel .row{display:flex;gap:12px;padding:10px 0;border-bottom:.5px solid var(--line2);cursor:pointer}.rel .row:last-child{border-bottom:none}.rel .ic{border-radius:6px;width:56px;height:56px;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:24px}.rel .row h4{font-size:13px;font-weight:600;margin:0 0 3px}.rel .row p{font-size:12px;color:var(--ink3);margin:0}.badge-new{background:var(--amber);color:#fff;font-size:9px;padding:1px 6px;border-radius:8px}.ftr{background:var(--navy);width:100vw;margin-left:calc(50% - 50vw)}.ftr-inner{max-width:760px;margin:0 auto;padding:18px var(--pad)}.ftr .brand{display:flex;align-items:center;gap:8px;margin-bottom:6px}.ftr .brand .logo{width:15px;height:15px;border:2px dashed #85E0C0;border-radius:50%}.ftr .brand span{color:#fff;font-size:12px;font-weight:600}.ftr .sub{color:#9fc4e8;font-size:10px;margin:0 0 10px}.ftr .note{color:#6f9fce;font-size:10px;margin:0;line-height:1.6}.ftr .flinks{display:flex;flex-wrap:wrap;gap:8px 14px;margin:0 0 10px}.ftr .flinks a{color:#cfe0f1;font-size:10px}.head{padding:20px 22px 10px}.head .row{display:flex;align-items:center;gap:8px;margin-bottom:4px}.head .kyu{background:var(--red);color:#fff;font-size:14px;font-weight:700;padding:3px 12px;border-radius:5px}.head h2{font-size:18px;font-weight:600;margin:0}.head p{font-size:12px;color:var(--ink3);margin:0}.tabs{padding:0 22px 8px;display:flex;gap:8px;flex-wrap:wrap;align-items:center}.tabs .lbl{font-size:11px;color:var(--ink4)}.tabs .tab{font-size:11px;color:var(--ink2);border:.5px solid #DDD;padding:4px 12px;border-radius:14px;cursor:pointer}.tabs .tab.on{color:#fff;background:var(--green);border-color:var(--green)}.grid{padding:12px 22px 22px;display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}.ccard{border:.5px solid var(--line);border-radius:10px;padding:14px;cursor:pointer;background:#fff;display:block}.ccard:hover{border-color:var(--green)}.ccard .top{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.ccard .num{background:var(--blue-bg);color:var(--blue-dark);font-size:13px;font-weight:700;padding:3px 10px;border-radius:5px}.ccard .theme{font-size:11px;color:var(--ink4);margin:0 0 8px;min-height:30px}.ccard .tags{display:flex;flex-wrap:wrap;gap:3px;margin-bottom:10px}.ccard .tags span{font-size:9px;color:#666;background:var(--tag);padding:2px 6px;border-radius:3px}.ccard .foot{display:flex;align-items:center;justify-content:space-between;border-top:.5px solid var(--line2);padding-top:8px;font-size:11px}.ccard .foot .see{color:var(--blue-dark)}.ccard .foot .pdf{color:var(--red)}.crumb{padding:10px 22px 0;font-size:11px;color:var(--ink4)}.crumb a{color:var(--blue-dark)}.titleblock{padding:14px 22px 16px}.titleblock .badges{display:flex;align-items:center;gap:8px;margin-bottom:8px}.titleblock .kyu{background:var(--red);color:#fff;font-size:13px;font-weight:700;padding:3px 11px;border-radius:5px}.titleblock .rd{background:var(--blue-bg);color:var(--blue-dark);font-size:13px;font-weight:700;padding:3px 11px;border-radius:5px}.titleblock h1{font-size:20px;font-weight:600;margin:0 0 8px;line-height:1.4}.titleblock p{font-size:13px;color:var(--ink3);margin:0}.stats{margin:0 22px;background:var(--paper);border-radius:8px;padding:12px 14px;display:grid;grid-template-columns:repeat(auto-fit,minmax(84px,1fr));gap:8px}.stats .s{text-align:center}.stats .s b{font-size:16px;font-weight:700;color:var(--blue-dark);display:block}.stats .s small{font-size:10px;color:var(--ink4)}.dsec{padding:20px 22px 8px}.dsec h2{font-size:15px;font-weight:600;margin:0 0 4px;border-left:3px solid var(--green);padding-left:10px}.dsec .hint{font-size:11px;color:var(--ink4);margin:6px 0 12px}.q{border:.5px solid var(--qline);border-radius:8px;padding:14px 16px;margin-bottom:10px}.q .stem{font-size:13px;margin:0 0 10px}.q .stem .no{color:var(--blue-dark);font-weight:700}.q .opts{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:5px;font-size:12px;color:var(--ink2)}.q .opts .correct{color:var(--green-dark);font-weight:600}.q .exp{background:#f4fbf8;border-radius:6px;padding:9px 12px;margin-top:10px}.q .exp p{font-size:11px;color:var(--green-dark);margin:0}.q.blurred{position:relative;overflow:hidden}.q.blurred .inner{filter:blur(3px);user-select:none}.q.blurred .cover{position:absolute;inset:0;background:#fff9;display:flex;align-items:center;justify-content:center}.q.blurred .cover span{font-size:12px;color:var(--ink3);background:#fff;border:.5px solid #DDD;padding:6px 14px;border-radius:20px}.passage{border:.5px solid var(--qline);border-radius:8px;padding:14px 16px}.passage .pt{font-size:13px;font-weight:600;margin:0 0 8px}.passage .pb{font-size:12px;color:#444;margin:0 0 8px;line-height:1.9}.passage .pb:last-child{margin-bottom:0}.passage .cont{color:var(--ink4)}.passage .mailhead{font-size:11px;color:var(--ink3);background:var(--paper);border-radius:6px;padding:8px 10px;margin:0 0 10px}.passage .mailhead div{margin:1px 0}.wblock{border:.5px solid var(--qline);border-radius:8px;padding:14px 16px;margin-bottom:10px}.wblock .wt{font-size:13px;font-weight:600;margin:0 0 6px}.wblock .wi{font-size:11px;color:var(--ink3);margin:0 0 8px}.wblock .wtopic{font-size:12px;color:var(--ink);background:var(--blue-bg);border-radius:6px;padding:8px 10px;margin:0 0 10px}.wblock .model{position:relative;overflow:hidden;border-radius:6px}.wblock .model .inner{filter:blur(3.5px);user-select:none;font-size:11px;color:#444;line-height:1.9;max-height:88px;overflow:hidden}.wblock .model .cover{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}.wblock .model .cover span{font-size:11px;color:var(--ink3);background:#fff;border:.5px solid #DDD;padding:6px 14px;border-radius:20px}.gate{margin:20px 22px;background:var(--cream);border:1px solid var(--cream-border);border-radius:10px;padding:20px;text-align:center}.gate .icon{font-size:26px}.gate h3{font-size:16px;font-weight:700;margin:8px 0 4px}.gate p{font-size:12px;color:var(--ink3);margin:0 0 14px}.gate .btn{background:var(--red);color:#fff;font-size:15px;font-weight:700;padding:13px 28px;border-radius:6px;display:inline-block;cursor:pointer;border:none}.gate .sub{font-size:11px;color:var(--ink4);margin:12px 0 0}.gate .sub a{color:var(--blue-dark);text-decoration:underline}.gate .gate-files{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;margin-top:12px}.gate .gate-file{background:#fff;color:var(--green-dark);border:.5px solid #CDE6DC;border-radius:20px;padding:7px 14px;font-size:12px;font-weight:600;cursor:pointer}.gate .gate-file:hover{background:var(--mint)}.about{padding:4px 22px 20px}.about h2{font-size:15px;font-weight:600;margin:12px 0 10px;border-left:3px solid var(--green);padding-left:10px}.about p{font-size:12px;color:var(--ink3);line-height:1.9;margin:0 0 14px}.about .links{display:flex;gap:10px;flex-wrap:wrap}.about .links a{font-size:12px;padding:6px 14px;border-radius:6px}.about .links .next,.about .links .prev{color:var(--blue-dark);border:.5px solid #CDE1F5}.about .links .wr{color:var(--amber-dark);border:.5px solid #F0DCA8}.tophero{position:relative;background:var(--navy);padding:34px 22px;overflow:hidden;text-align:center}.tophero .bgwords{position:absolute;inset:0;opacity:.12;font-family:Georgia,serif;color:#fff;font-size:13px;line-height:1.7;padding:8px 12px;user-select:none;overflow:hidden}.tophero .inner{position:relative}.tophero h1{color:#fff;font-size:22px;font-weight:700;margin:0 0 8px}.tophero .kako{background:var(--red);color:#fff;padding:2px 10px;border-radius:5px}.tophero p{color:#cfe0f1;font-size:13px;margin:0}.tiles{padding:20px 22px;display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px}.tile{border:.5px solid var(--line);border-radius:12px;padding:18px;display:block;background:#fff;transition:border-color .15s}.tile:hover{border-color:var(--green)}.tile .kyu{display:inline-block;background:var(--red);color:#fff;font-size:15px;font-weight:700;padding:3px 14px;border-radius:6px;margin-bottom:10px}.tile h3{font-size:14px;font-weight:600;margin:0 0 6px}.tile p{font-size:11px;color:var(--ink3);margin:0 0 12px;line-height:1.7}.tile .go{color:var(--blue-dark);font-size:12px;font-weight:600}.formwrap{padding:22px}.steps{display:flex;align-items:center;justify-content:center;gap:6px;margin-bottom:20px}.steps .dot{width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;border:1px solid var(--line);color:var(--ink4);background:#fff}.steps .dot.on{background:var(--green);border-color:var(--green);color:#fff}.steps .dot.done{background:var(--green-dark);border-color:var(--green-dark);color:#fff}.steps .bar{width:28px;height:2px;background:var(--line)}.steps .bar.on{background:var(--green)}.formcard{max-width:440px;margin:0 auto}.formcard h1{font-size:18px;font-weight:700;margin:0 0 4px;text-align:center}.formcard .lead{font-size:12px;color:var(--ink3);text-align:center;margin:0 0 20px}.field{margin-bottom:16px}.field label{display:block;font-size:12px;font-weight:600;color:var(--ink2);margin-bottom:6px}.field label .req{color:var(--red);font-size:10px;margin-left:4px}.field input,.field select{width:100%;font-size:14px;padding:11px 12px;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--ink)}.field input:focus,.field select:focus{outline:none;border-color:var(--green)}.field .note{font-size:10px;color:var(--ink4);margin:5px 0 0}.check{display:flex;align-items:flex-start;gap:8px;font-size:12px;color:var(--ink2)}.check input{margin-top:3px}.formbtns{display:flex;gap:10px;margin-top:20px}.btn-primary{flex:1;background:var(--red);color:#fff;font-size:15px;font-weight:700;padding:13px;border-radius:6px;border:none;cursor:pointer;text-align:center}.btn-ghost{flex:0 0 auto;background:#fff;color:var(--ink2);font-size:13px;padding:13px 18px;border:1px solid var(--line);border-radius:6px;cursor:pointer;text-align:center}.formnote{font-size:11px;color:var(--ink4);text-align:center;margin:16px 0 0}.formnote a{color:var(--blue-dark);text-decoration:underline}.page{padding:22px}.page h1{font-size:20px;font-weight:700;margin:0 0 6px}.page .lead{font-size:12px;color:var(--ink3);margin:0 0 20px}.page h2{font-size:15px;font-weight:600;margin:22px 0 8px;border-left:3px solid var(--green);padding-left:10px}.page p{font-size:13px;color:var(--ink2);margin:0 0 12px}.page ul{font-size:13px;color:var(--ink2);padding-left:20px;margin:0 0 12px}.page li{margin-bottom:6px}.faqlist details{border:.5px solid var(--line);border-radius:8px;padding:12px 16px;margin-bottom:10px}.faqlist summary{font-size:13px;font-weight:600;color:var(--ink);cursor:pointer;list-style:none;display:flex;justify-content:space-between}.faqlist summary::-webkit-details-marker{display:none}.faqlist summary:after{content:"＋";color:var(--green)}.faqlist details[open] summary:after{content:"−"}.faqlist details p{font-size:12px;color:var(--ink3);margin:10px 0 0}.mycards{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-top:12px}.mycard{border:.5px solid var(--line);border-radius:10px;padding:16px}.mycard h3{font-size:13px;font-weight:600;margin:0 0 6px}.mycard p{font-size:11px;color:var(--ink3);margin:0 0 10px}.mycard a{font-size:12px;color:var(--blue-dark);font-weight:600}.authcard{max-width:380px;margin:10px auto}.muted{color:var(--ink4)}:root{--pad: clamp(14px, 4.5vw, 22px)}.wrap{max-width:min(760px,100%)}.hero,.tophero,.sec,.feat,.rel,.crumb,.titleblock,.dsec,.about,.head,.tabs,.grid,.tiles,.formwrap,.page{padding-left:var(--pad);padding-right:var(--pad)}.weekly,.stats,.gate{margin-left:var(--pad);margin-right:var(--pad)}.hero .kako,.hero .sokkuri{font-size:clamp(19px,6.2vw,27px)}.hero .card{padding:clamp(18px,5vw,26px)}.hero .lead{font-size:clamp(13.5px,3.6vw,15px)}.tophero h1{font-size:clamp(18px,5.6vw,24px)}.titleblock h1{font-size:clamp(16.5px,4.8vw,20px)}.page h1,.formcard h1{font-size:clamp(17px,5vw,20px)}.head h2{font-size:clamp(15px,4.4vw,18px)}.dsec h2,.about h2,.page h2{font-size:clamp(13.5px,4vw,15px)}.stats .s b{font-size:clamp(14px,4vw,16px)}@media(max-width:560px){.loginstate{flex-direction:column;align-items:flex-start;gap:4px}.weekly{flex-direction:column}.weekly .badge{flex-direction:row;gap:6px;min-width:0;padding:8px 12px}.about .links{flex-direction:column}.about .links a{text-align:center}.formbtns{flex-wrap:wrap}}@media(max-width:360px){.q .opts{grid-template-columns:1fr}}.q .reveal-btn{margin-top:10px;font-size:12px;font-weight:600;color:var(--green-dark);background:var(--mint);border:.5px solid #CDE6DC;padding:7px 14px;border-radius:20px;cursor:pointer}.q .reveal-btn:hover{background:#e3f1ea}.q .reveal-btn:before{content:"＋ "}.q .opts .ck{display:none}.q:not(.revealed) .opts .correct{color:var(--ink2);font-weight:400}.q .exp{display:none}.q.revealed .opts .correct{color:var(--green-dark);font-weight:600}.q.revealed .opts .ck{display:inline}.q.revealed .exp{display:block}.q.revealed .reveal-btn{color:var(--ink3);background:#fff;border-color:var(--line)}.q.revealed .reveal-btn:before{content:"− "}.topdl{display:block;width:100%;margin-top:14px;background:var(--red);color:#fff;font-size:clamp(14px,4.2vw,16px);font-weight:700;padding:14px 16px;border:none;border-radius:10px;cursor:pointer;box-shadow:0 3px 10px #e24b4a47;text-align:center;line-height:1.4}.topdl:hover{filter:brightness(1.04)}.topdl .topdl-main{display:inline-flex;align-items:center;justify-content:center;gap:8px}.topdl small{display:block;font-weight:400;font-size:11px;opacity:.92;margin-top:3px}.gate .gate-file{display:inline-flex;align-items:center;gap:5px}.ico[data-astro-cid-patnjmll]{display:inline-block;vertical-align:middle;flex-shrink:0}
