@charset "UTF-8";
:root{color-scheme:light;--ink:#183329;--muted:#556b60;--green:#287a50;--deep:#174d34;--line:#d9e5dc;--pale:#f4f8f5;--white:#fff;font-family:"Segoe UI","Yu Gothic UI","Hiragino Kaku Gothic ProN",Meiryo,sans-serif;font-size:16px;line-height:1.7}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fff}a{color:var(--deep)}a:hover{text-decoration-color:var(--green)}img{max-width:100%;height:auto}code{font-family:Consolas,"SFMono-Regular",monospace;font-size:.93em}p{margin:.55em 0 0}h1,h2,h3{line-height:1.35;letter-spacing:-.025em}h1{font-size:clamp(2.15rem,4vw,3.6rem);margin:.35em 0}h2{font-size:clamp(1.5rem,2.4vw,2.1rem);margin:.2em 0 .5em}h3{font-size:1.17rem;margin:.5em 0}.shell{width:min(1160px,calc(100% - 48px));margin-inline:auto}.skip{position:absolute;left:-9999px;top:8px;background:#fff;z-index:20;padding:8px}.skip:focus{left:8px}.site-header{border-bottom:1px solid var(--line);background:#fff}.mast{display:flex;align-items:center;justify-content:space-between;min-height:82px;gap:20px}.brand{display:inline-flex;align-items:center;gap:11px;text-decoration:none;color:var(--ink);line-height:1.12}.brand img{object-fit:contain}.brand strong{font-size:1.5rem;letter-spacing:-.04em}.brand small{display:block;font-size:.72rem;color:var(--muted);letter-spacing:.035em;margin-top:5px}.portal{font-size:.86rem;text-decoration:none;color:var(--muted)}.nav{display:flex;gap:clamp(9px,2vw,28px);align-items:center;overflow:auto;white-space:nowrap;scrollbar-width:thin}.nav a{padding:12px 1px 13px;border-bottom:3px solid transparent;text-decoration:none;font-size:.9rem;color:#4b6256}.nav a[aria-current]{color:var(--deep);border-bottom-color:var(--green);font-weight:700}.nav a:hover{color:var(--deep)}.hero{display:grid;grid-template-columns:.9fr 1.1fr;align-items:center;gap:clamp(25px,4vw,60px);padding-block:70px 76px}.hero-copy{max-width:490px}.eyebrow,.kicker{color:var(--green);font-size:.78rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}.eyebrow span{display:inline-block;border-left:1px solid #b5cfbd;padding-left:13px;margin-left:10px;letter-spacing:0}.lead{font-size:1.11rem;color:#41584c;line-height:1.9}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:31px}.button{display:inline-flex;align-items:center;justify-content:center;gap:16px;padding:13px 21px;min-height:51px;border-radius:5px;text-decoration:none;font-weight:700;line-height:1.35;transition:transform .15s,background .15s}.button:hover{transform:translateY(-2px)}.primary{background:var(--green);color:white;box-shadow:0 6px 16px #1d704423}.primary:hover{background:#1a5e3d}.subtle{color:var(--deep);background:#edf4ee}.light{background:white;color:var(--deep)}.wide{width:100%}.micro{font-size:.78rem;color:var(--muted);line-height:1.65}.hero-visual{min-width:0}.shot-label{display:flex;align-items:center;gap:8px;color:#436150;font-size:.83rem;font-weight:600;margin:0 0 12px}.live-dot{width:8px;height:8px;border-radius:50%;background:#6aaa75}.screen-frame{position:relative;border:1px solid #bdd4c3;background:#f2f7f3;border-radius:9px;padding:8px;box-shadow:0 18px 45px #1c51321d}.screen-frame img{display:block;border-radius:3px;width:100%}.path-mask{position:absolute;left:48.3%;top:18.2%;width:43%;height:4.2%;background:#f4faff;border-radius:2px;pointer-events:none}.band{background:#f4f8f5;border-block:1px solid #e3ece5}.quick{display:grid;grid-template-columns:repeat(4,1fr);padding-block:27px}.quick>div{padding:6px 23px;border-left:1px solid #cbdccf}.quick>div:first-child{border:0;padding-left:0}.quick b{color:var(--deep);font-size:.94rem}.quick p{font-size:.84rem;color:var(--muted);line-height:1.65}.section{padding-block:78px 89px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:24px}.section-head .kicker{margin:0}.text-link{font-weight:700;text-decoration:none;color:var(--green)}.text-link:hover{text-decoration:underline}.feature-grid,.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.feature{padding:27px 26px 30px;border:1px solid var(--line);border-top:4px solid var(--green);border-radius:6px;background:#fff}.feature>span{font-size:.73rem;letter-spacing:.11em;font-weight:800;color:var(--green)}.feature p,.info-card p{color:var(--muted);font-size:.94rem}.feature.blue{border-top-color:#326ba7}.feature.blue>span{color:#326ba7}.feature.aqua{border-top-color:#268b96}.feature.aqua>span{color:#268b96}.download-ribbon{background:var(--deep);color:#fff}.ribbon-inner{padding-block:38px 43px;display:flex;align-items:center;justify-content:space-between;gap:25px}.download-ribbon .kicker{color:#bce4c4}.download-ribbon p{color:#d7e8da}.site-footer{margin-top:75px;background:#edf4ee;border-top:1px solid var(--line);padding:35px 0}.footer-grid{display:flex;justify-content:space-between;gap:35px}.footer-grid strong{font-size:1.2rem}.footer-grid p,.footer-grid small{color:#546b5b}.footer-grid small{font-size:.78rem}.page-intro{padding-block:58px 40px;border-bottom:1px solid var(--line)}.page-intro h1{font-size:clamp(2.1rem,3.5vw,3.1rem)}.page-intro>p:last-child{font-size:1.06rem;color:var(--muted);max-width:750px}.content{padding-block:40px 10px}.card-grid{grid-template-columns:repeat(2,1fr)}.info-card{border:1px solid var(--line);border-radius:6px;padding:25px 28px 28px}.info-card h2{font-size:1.28rem;margin:.58em 0}.tag{display:inline-block;padding:3px 9px;border-radius:3px;font-size:.76rem;font-weight:800}.green-tag{background:#e3f2e6;color:#236344}.blue-tag{background:#e5eefb;color:#285887}.orange-tag{background:#fff0df;color:#98500d}.aqua-tag{background:#e2f2f4;color:#206773}.violet-tag{background:#f0ebf9;color:#66458b}.notice{background:#edf6ef;border-left:4px solid var(--green);padding:18px 22px;margin-top:28px;border-radius:0 4px 4px 0}.notice p{color:#435e4c}.download-layout{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(290px,.75fr);gap:clamp(30px,5vw,75px)}.release-card{padding:27px;border:1px solid #b8d8c0;border-radius:8px;background:#f8fcf9}.release-top{display:flex;gap:16px;align-items:center;margin-bottom:22px}.release-top h2{margin:5px 0 0}.content-title{font-size:1.45rem;margin-top:42px}.facts{align-self:start;background:#f5f8f6;border:1px solid var(--line);padding:24px;border-radius:7px}.facts h2{font-size:1.28rem}.facts h3{font-size:.9rem;margin:24px 0 7px}.facts dl{margin:0}.facts dl>div{padding:10px 0;border-bottom:1px solid var(--line)}.facts dt{font-size:.76rem;color:var(--muted)}.facts dd{margin:1px 0 0;font-weight:600}.hash{display:block;overflow-wrap:anywhere;background:#fff;padding:10px;border:1px solid var(--line);line-height:1.55;font-size:.77rem}.steps{list-style:none;padding:0;counter-reset:step}.steps li{position:relative;padding:5px 0 22px 47px;counter-increment:step}.steps li:before{content:counter(step);position:absolute;left:0;top:4px;display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:#e3f2e6;color:var(--deep);font-weight:800}.steps p{color:var(--muted)}.guide{display:grid;grid-template-columns:210px minmax(0,1fr);gap:55px}.toc{display:flex;flex-direction:column;align-self:start;position:sticky;top:20px;border-left:2px solid var(--line)}.toc a{padding:8px 14px;text-decoration:none;font-size:.9rem}.guide-body section{padding:0 0 30px;margin-bottom:30px;border-bottom:1px solid var(--line);scroll-margin-top:20px}.guide-body h2{margin:.3em 0}.guide-body p{color:var(--muted);max-width:780px}.step-no{color:var(--green);font-weight:800;font-size:.78rem;letter-spacing:.1em}.history-item{display:grid;grid-template-columns:220px 1fr;gap:40px;padding:30px 0;border-block:1px solid var(--line)}.history-meta{display:flex;align-items:start;flex-direction:column;gap:7px}.history-meta b{font-size:1.5rem}.history-meta time{font-size:.83rem;color:var(--muted)}.history-item li{margin-bottom:9px}.faq{max-width:900px;margin-inline:auto}.faq details{border-bottom:1px solid var(--line);padding:0 5px}.faq summary{cursor:pointer;font-weight:700;font-size:1.04rem;list-style:none;padding:19px 28px 19px 0;position:relative}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:'＋';position:absolute;right:0;color:var(--green)}.faq details[open] summary:after{content:'−'}.faq details p{color:var(--muted);padding:0 20px 20px 0;margin:0}.about-layout{display:grid;grid-template-columns:1.5fr .75fr;gap:70px}.about-layout h2:not(:first-child){margin-top:38px}.about-layout p{color:var(--muted)}.fields{display:flex;flex-wrap:wrap;gap:8px;margin:25px 0}.fields span{border:1px solid #c5d9cb;background:#f5f9f6;color:#315540;font:600 .76rem Consolas,monospace;padding:7px 10px;border-radius:3px}.quote-card{align-self:start;background:#eaf5ed;padding:31px;border-radius:6px}.quote-card strong{display:block;font-size:1.37rem;line-height:1.4;margin:20px 0 8px}
@media(max-width:900px){.hero{grid-template-columns:1fr;padding-block:42px 50px}.hero-copy{max-width:740px}.quick{grid-template-columns:repeat(2,1fr);gap:20px}.quick>div:nth-child(3){border:0;padding-left:0}.download-layout,.about-layout{gap:28px}.feature-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:650px){.shell{width:min(100% - 30px,1160px)}.mast{min-height:70px}.brand strong{font-size:1.32rem}.brand small{font-size:.62rem}.portal{font-size:.75rem;white-space:nowrap}.nav{gap:18px}.nav a{font-size:.83rem}.hero{gap:30px}.hero h1{font-size:clamp(2rem,8vw,2.75rem)}.lead{font-size:1rem}.actions .button{flex:1}.screen-frame{padding:4px}.shot-label{font-size:.77rem}.quick{grid-template-columns:1fr 1fr;gap:6px 0;padding-block:16px}.quick>div{padding:12px!important;border:0!important}.quick b{font-size:.86rem}.quick p{font-size:.78rem}.section{padding-block:52px}.section-head{display:block}.feature-grid,.card-grid,.download-layout,.guide,.history-item,.about-layout{grid-template-columns:1fr}.feature,.info-card{padding:21px}.ribbon-inner{align-items:start;flex-direction:column}.page-intro{padding-block:35px 29px}.guide{gap:24px}.toc{position:static;flex-direction:row;flex-wrap:wrap;border:0;gap:4px}.toc a{padding:5px 9px;background:#edf4ee;border-radius:4px}.history-item{gap:20px}.footer-grid{display:block}.site-footer{margin-top:55px}.facts{order:-1}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button{transition:none}}

.mirror-link{display:flex;align-items:center;justify-content:center;gap:9px;min-height:44px;margin-top:12px;border:1px solid #bfd5c5;border-radius:5px;background:#fff;color:var(--deep);font-size:.9rem;font-weight:700;text-decoration:none}
.mirror-link:hover{background:#edf4ee}
.mirror-link svg{width:19px;height:19px;flex:none;fill:currentColor}



.hero h1{font-size:clamp(2.05rem,3.5vw,2.8rem);overflow-wrap:normal;word-break:keep-all}
@media(max-width:650px){.hero h1{font-size:clamp(1.95rem,7vw,2.5rem)}}

/* Main feature panels */
.band{background:#f2f7f3;border-block:1px solid #dce9df}
.quick{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;padding-block:30px}
.quick-card{min-width:0;padding:24px 20px 25px;border:1px solid #cfdfd2;border-top:5px solid #3a8a5b;border-radius:7px;background:#fff;box-shadow:0 8px 22px #173b2610}
.quick-card span{display:block;color:#327d51;font-size:.71rem;font-weight:800;letter-spacing:.11em;line-height:1.4}
.quick-card h2{margin:12px 0 8px;color:#173b2b;font-size:clamp(1.08rem,1.6vw,1.35rem);letter-spacing:-.02em;line-height:1.4}
.quick-card p{margin:0;color:#425d4e;font-size:.9rem;line-height:1.65}
.quick-card.contest{border-top-color:#3976af}.quick-card.contest span{color:#2a679b}
.quick-card.backup{border-top-color:#ce7444}.quick-card.backup span{color:#a95026}
.quick-card.import{border-top-color:#7358a1}.quick-card.import span{color:#674b94}
.easy-note{margin-top:24px;padding:18px 21px;background:#f4f8f5;border-left:3px solid #82ad8e;border-radius:0 5px 5px 0}
.easy-note h3{font-size:1.01rem;margin:0 0 4px}.easy-note p{font-size:.9rem;margin:0}
@media(max-width:900px){.quick{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.quick-card{padding:21px}}
@media(max-width:650px){.quick{grid-template-columns:1fr;gap:12px;padding-block:22px}.quick-card{padding:19px 20px!important}.quick-card h2{font-size:1.17rem}.quick-card p{font-size:.88rem}}