:root{
  --red:#EA4335; --blue:#4285F4; --yellow:#FBBC05; --green:#34A853;
  --ink:#172425; --ink-soft:#34484b; --muted:#6d7d80;
  --paper:#fffaf0; --paper-2:#f6f1e5; --white:#fffdfa;
  --line:#e7ded0; --shadow:0 18px 50px rgba(23,36,37,.12);
  --radius-xl:34px; --radius-lg:24px; --radius-md:16px;
  --max:1120px;
}
*{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Yu Gothic",Meiryo,sans-serif;line-height:1.75;letter-spacing:.02em} a{color:inherit;text-decoration:none} img{max-width:100%;display:block} .container{width:min(var(--max),calc(100% - 36px));margin-inline:auto}.skip-link{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:8px 12px;border-radius:999px;z-index:99}.skip-link:focus{left:8px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,250,240,.86);backdrop-filter:blur(18px);border-bottom:1px solid rgba(231,222,208,.8)}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:12px 0}.logo-link{display:flex;align-items:center;gap:10px;font-weight:900}.logo-img{width:62px;height:62px;object-fit:contain;filter:drop-shadow(0 8px 16px rgba(23,36,37,.18))}.logo-word{font-weight:900;line-height:1.05}.logo-word small{display:block;color:var(--muted);font-size:11px;letter-spacing:.12em}.global-nav{display:flex;align-items:center;gap:8px}.global-nav a{font-weight:800;font-size:14px;color:var(--ink-soft);padding:10px 12px;border-radius:999px}.global-nav a:hover,.global-nav a[aria-current="page"]{background:#fff;color:var(--ink);box-shadow:0 6px 18px rgba(23,36,37,.06)}.nav-cta{background:var(--ink)!important;color:#fff!important}.nav-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px;width:46px;height:44px}.nav-toggle span{display:block;height:2px;background:var(--ink);margin:5px 0;border-radius:4px}
.hero{position:relative;overflow:hidden;padding:76px 0 58px;background:radial-gradient(circle at 12% 8%, rgba(251,188,5,.22), transparent 28%),radial-gradient(circle at 88% 16%, rgba(66,133,244,.20), transparent 28%),linear-gradient(180deg,#fffaf0 0%,#f8f0df 100%)}.hero:before{content:"";position:absolute;inset:auto -80px -120px auto;width:420px;height:420px;border-radius:50%;background:conic-gradient(from 20deg,var(--red),var(--yellow),var(--green),var(--blue),var(--red));opacity:.12}.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}.kicker,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--ink);font-weight:900;text-transform:uppercase;letter-spacing:.12em;font-size:12px}.kicker:before,.section-kicker:before{content:"";width:18px;height:18px;border-radius:50%;background:conic-gradient(var(--red),var(--yellow),var(--green),var(--blue),var(--red));box-shadow:inset 0 0 0 4px #fff}.hero-title{font-size:clamp(44px,7vw,88px);line-height:1.02;margin:18px 0 22px;letter-spacing:-.06em}.line-accent{position:relative}.line-accent:after{content:"";position:absolute;left:0;right:0;bottom:.08em;height:.22em;background:linear-gradient(90deg,rgba(234,67,53,.25),rgba(251,188,5,.35),rgba(52,168,83,.25));z-index:-1;border-radius:999px}.hero-sub,.lead{font-size:clamp(16px,2vw,19px);color:var(--ink-soft);max-width:760px}.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:11px 20px;border-radius:999px;font-weight:900;border:2px solid transparent;box-shadow:0 12px 24px rgba(23,36,37,.08);transition:.2s transform,.2s box-shadow,.2s background}.btn:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(23,36,37,.12)}.btn-primary{background:var(--red);color:#fff}.btn-blue{background:var(--blue);color:#fff}.btn-green{background:var(--green);color:#fff}.btn-yellow{background:var(--yellow);color:var(--ink)}.btn-white,.btn-soft{background:#fff;color:var(--ink);border-color:var(--line)}.hero-card{background:rgba(255,253,250,.84);border:1px solid rgba(231,222,208,.9);border-radius:var(--radius-xl);box-shadow:var(--shadow);padding:24px;position:relative}.hero-logo-wrap{display:flex;justify-content:center;margin:-70px 0 14px}.hero-logo{width:min(280px,70%);aspect-ratio:1/1;object-fit:contain;filter:drop-shadow(0 20px 26px rgba(23,36,37,.22))}.hero-card-top{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:18px}.status-pill{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 12px;font-weight:800;font-size:13px}.status-dot{width:10px;height:10px;background:var(--green);border-radius:50%;box-shadow:0 0 0 5px rgba(52,168,83,.15)}.small{font-size:13px;color:var(--muted)}.hero-visual{display:grid;gap:14px}.note-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px;box-shadow:0 10px 25px rgba(23,36,37,.06)}.note-card h3{margin:8px 0 4px}.tag{display:inline-flex;align-items:center;border-radius:999px;padding:5px 10px;font-size:12px;font-weight:900}.tag-blue{background:rgba(66,133,244,.13);color:#2159b5}.tag-yellow{background:rgba(251,188,5,.20);color:#745200}.tag-green{background:rgba(52,168,83,.13);color:#21703b}.tag-red{background:rgba(234,67,53,.13);color:#a43128}.mini-chart{height:62px;display:flex;align-items:end;gap:7px;margin-top:12px}.mini-chart span{flex:1;border-radius:999px 999px 4px 4px;background:linear-gradient(180deg,var(--blue),var(--green))}
.section{padding:72px 0}.section-soft{background:var(--paper-2)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:28px}.section h1,.section h2,.page-title{font-size:clamp(32px,4.4vw,54px);line-height:1.14;margin:10px 0 10px;letter-spacing:-.04em}.page-hero{padding:58px 0 40px;background:linear-gradient(180deg,#fffaf0,#f7eedc)}.page-title{margin-top:14px}.intro-panel,.business-panel,.cta-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-xl);box-shadow:var(--shadow);padding:34px}.intro-panel{display:grid;grid-template-columns:.8fr 1.2fr;gap:28px;align-items:center}.intro-illust{min-height:240px;border-radius:26px;background:radial-gradient(circle at 20% 20%,rgba(66,133,244,.22),transparent 32%),radial-gradient(circle at 80% 28%,rgba(251,188,5,.24),transparent 30%),radial-gradient(circle at 40% 80%,rgba(52,168,83,.18),transparent 32%),#fff7e7;display:grid;place-items:center}.code-note{background:rgba(255,255,255,.8);border:1px dashed var(--line);padding:22px;border-radius:22px;font-weight:900;text-align:center}.code-note code{background:var(--ink);color:#fff;padding:3px 8px;border-radius:8px}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.card,.article-card,.member-card,.form-panel,.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;box-shadow:0 10px 26px rgba(23,36,37,.06)}.feature-card{position:relative;overflow:hidden}.feature-card:after{content:"";position:absolute;right:-20px;top:-20px;width:90px;height:90px;border-radius:50%;background:rgba(251,188,5,.12)}.icon-badge{width:46px;height:46px;display:grid;place-items:center;background:var(--paper-2);border-radius:16px;font-size:24px}.card h3{margin:12px 0 8px}.chip-list{display:flex;flex-wrap:wrap;gap:10px}.chip{display:inline-flex;background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 12px;color:var(--ink-soft);font-weight:800;font-size:13px}.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.article-card{padding:0;overflow:hidden}.card-thumb{height:178px;background:linear-gradient(135deg,rgba(66,133,244,.85),rgba(52,168,83,.78)),radial-gradient(circle at 20% 20%,#fff,transparent 20%)}.card-thumb.red{background:linear-gradient(135deg,rgba(234,67,53,.85),rgba(251,188,5,.78))}.card-thumb.yellow{background:linear-gradient(135deg,rgba(251,188,5,.92),rgba(52,168,83,.70))}.card-thumb.dark{background:linear-gradient(135deg,#162628,#3a565a)}.card-thumb.logo-thumb{background:#172425;display:grid;place-items:center;padding:28px}.card-thumb.logo-thumb img{width:150px;filter:drop-shadow(0 12px 18px rgba(0,0,0,.32))}.article-body{padding:18px}.article-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;color:var(--muted);font-size:12px}.article-title{font-size:20px;line-height:1.35;margin:12px 0 8px}.article-excerpt{color:var(--ink-soft);margin:0}.activity-card ul,.check-list{padding-left:0;list-style:none}.activity-card li,.check-list li{position:relative;padding-left:28px;margin:9px 0}.activity-card li:before,.check-list li:before{content:"";position:absolute;left:0;top:.55em;width:16px;height:16px;border-radius:50%;background:conic-gradient(var(--blue),var(--green),var(--yellow),var(--red),var(--blue))}.business-panel{display:grid;grid-template-columns:1.25fr .75fr;gap:24px;align-items:center;background:linear-gradient(135deg,#fff,#fff7e1)}.business-mini{display:grid;gap:12px}.mini-item{background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px}.mini-item strong{font-size:26px;color:var(--blue)}.cta-section{padding:70px 0;background:var(--ink);color:#fff}.cta-panel{background:linear-gradient(135deg,rgba(255,255,255,.10),rgba(255,255,255,.04));border-color:rgba(255,255,255,.16);color:#fff}.cta-panel .lead,.cta-panel .section-kicker{color:#fff}.site-footer{background:#122021;color:#dfe8e6;padding:44px 0 30px}.footer-grid{display:grid;grid-template-columns:1.3fr .8fr .8fr;gap:28px}.footer-logo{width:86px;margin-bottom:12px}.footer-links,.social-links{display:grid;gap:8px}.footer-links a,.social-links a{color:#dfe8e6}.copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:28px;padding-top:18px;color:#aebebb;font-size:13px}.filters{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0}.filter-btn{border:1px solid var(--line);background:#fff;border-radius:999px;padding:9px 14px;font-weight:900;color:var(--ink-soft);cursor:pointer}.filter-btn.active{background:var(--ink);color:#fff}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:28px;align-items:start}.prose{background:#fff;border:1px solid var(--line);border-radius:var(--radius-xl);padding:32px;box-shadow:var(--shadow)}.prose h2{font-size:30px;margin-top:38px}.info-box{background:#fff8e4;border:1px solid #efdfb6;border-radius:22px;padding:22px;margin-top:28px}.sidebar-card{position:sticky;top:100px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px}.member-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.member-head{display:flex;gap:16px;align-items:center}.avatar{width:72px;height:72px;border-radius:24px;background:conic-gradient(var(--red),var(--yellow),var(--green),var(--blue),var(--red));display:grid;place-items:center;color:#fff;font-weight:900;font-size:24px}.member-card .chip-list{margin:14px 0}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:start}.form-panel h2{font-size:30px;margin-top:0}.form-field{display:grid;gap:7px;margin:14px 0}.form-field label{font-weight:900}.form-field input,.form-field textarea,.form-field select{width:100%;border:1px solid var(--line);border-radius:16px;padding:12px 14px;background:#fffdf8;font:inherit}.form-field textarea{min-height:116px;resize:vertical}.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.faq-item h3{margin:0 0 8px;font-size:18px}.notice{background:#eaf3ff;border:1px solid rgba(66,133,244,.25);border-radius:18px;padding:16px}.toast{position:fixed;right:18px;bottom:18px;background:var(--ink);color:#fff;padding:12px 16px;border-radius:16px;box-shadow:var(--shadow);opacity:0;transform:translateY(10px);pointer-events:none;transition:.25s}.toast.show{opacity:1;transform:none}.color-dots{display:flex;gap:7px}.color-dots span{width:12px;height:12px;border-radius:50%}.color-dots span:nth-child(1){background:var(--red)}.color-dots span:nth-child(2){background:var(--blue)}.color-dots span:nth-child(3){background:var(--yellow)}.color-dots span:nth-child(4){background:var(--green)}
@media (max-width:900px){.nav-toggle{display:block}.global-nav{position:absolute;left:18px;right:18px;top:84px;background:#fff;border:1px solid var(--line);border-radius:22px;padding:14px;display:none;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.global-nav.open{display:flex}.global-nav a{text-align:center}.hero-grid,.intro-panel,.business-panel,.article-layout,.form-grid{grid-template-columns:1fr}.section-head{display:block}.grid-3,.article-grid,.footer-grid,.faq-grid{grid-template-columns:1fr}.grid-2,.member-grid{grid-template-columns:1fr}.hero{padding-top:48px}.hero-logo-wrap{margin:0}.hero-logo{width:210px}.article-grid{gap:16px}.sidebar-card{position:static}.footer-logo{width:72px}}
@media (max-width:520px){.container{width:min(100% - 26px,var(--max))}.logo-img{width:52px;height:52px}.hero-title{font-size:43px}.section{padding:54px 0}.intro-panel,.business-panel,.cta-panel,.prose{padding:22px;border-radius:24px}.card-thumb{height:150px}.cta-row .btn{width:100%}.hero-card{padding:18px}.hero-card-top{display:grid}.page-hero{padding:42px 0 28px}}