:root{--bg:#F4F4F5;--surface:#FFFFFF;--line:#E4E4E7;--line-strong:#D1D1D6;--t-1:#18181B;--t-2:#3F3F46;--t-3:#71717A;--t-4:#A1A1AA;--accent:#18181B;--accent-on:#FFFFFF;--gs-50:#FAFAFA;--gs-100:#F4F4F5;--gs-150:#ECECEE}@media (prefers-color-scheme:dark){:root{--bg:#0F1115;--surface:#16181D;--line:#262A31;--line-strong:#353A43;--t-1:#F1F3F5;--t-2:#C0C7D1;--t-3:#8B95A1;--t-4:#5E6772;--accent:#F1F3F5;--accent-on:#0F1115;--gs-50:#1B1F26;--gs-100:#21252D;--gs-150:#262B34}.logo-invert{filter:invert(1)}}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--t-1);font-family:Pretendard Variable,Pretendard,-apple-system,BlinkMacSystemFont,Apple SD Gothic Neo,Segoe UI,sans-serif;font-feature-settings:"tnum";-webkit-font-smoothing:antialiased;font-size:15px;line-height:1.6;letter-spacing:-.1px;word-break:keep-all;overflow-wrap:break-word}.section-title,h1,h2,h3{text-wrap:balance}.note,.sub,p{text-wrap:pretty}.back-link{display:inline-flex;align-items:center;gap:4px;background:none;border:none;padding:0;color:var(--t-3);font-size:13px;font-weight:500;margin-bottom:16px}.back-link:hover{color:var(--t-1)}a{color:inherit;text-decoration:none}button{font:inherit;cursor:pointer}.wrap{max-width:960px;margin:0 auto;padding:0 24px 96px}.nav{gap:20px;padding:20px 0;margin-bottom:48px}.nav,.nav .brand{display:flex;align-items:center}.nav .brand{font-weight:700;font-size:17px;letter-spacing:-.3px;gap:8px}.nav .brand img{height:22px;width:auto;display:block}.nav a.item{color:var(--t-3);font-size:14px;font-weight:500}.nav a.item:hover{color:var(--t-1)}.nav .right{margin-left:auto;display:flex;gap:12px;align-items:center}.hero h1{font-size:40px;font-weight:800;letter-spacing:-1px;line-height:1.25;margin-bottom:12px}.hero p{color:var(--t-3);font-size:17px;margin-bottom:32px}.grid{display:grid;grid-gap:16px;gap:16px}.grid.cols-2{grid-template-columns:1fr 1fr}.grid.cols-3{grid-template-columns:1fr 1fr 1fr}@media (max-width:720px){.grid.cols-2,.grid.cols-3{grid-template-columns:1fr}}.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:24px}.card h3{font-size:17px;font-weight:700;margin-bottom:4px}.card .sub{color:var(--t-3);font-size:13px;margin-bottom:16px}.card .price{font-size:30px;font-weight:800;letter-spacing:-.5px}.card .price .unit{font-size:14px;color:var(--t-3);font-weight:500}.card ul{list-style:none;margin:16px 0}.card li{font-size:13px;color:var(--t-2);padding:4px 0}.card li:before{content:"✓ ";color:var(--t-1);font-weight:700}.card.featured{border-color:var(--t-1);border-width:2px}.btn{display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 22px;border-radius:12px;font-size:15px;font-weight:600;border:1px solid transparent;transition:opacity .12s ease}.btn:hover{opacity:.88}.btn.primary{background:var(--accent);color:var(--accent-on)}.btn.ghost{background:transparent;color:var(--t-2);border-color:var(--line-strong)}.btn.block{width:100%}.btn:disabled{opacity:.45;cursor:not-allowed}.input{width:100%;height:48px;padding:0 14px;border-radius:12px;border:1px solid var(--line);background:var(--surface);color:var(--t-1);font-size:15px}.input:focus{outline:none;border-color:var(--t-1)}.field{margin-bottom:16px}.field-label{font-size:12px;font-weight:600;color:var(--t-3);margin-bottom:6px}.section-title{font-size:22px;font-weight:700;letter-spacing:-.4px;margin:56px 0 16px}.note{color:var(--t-4);font-size:12px;margin-top:12px}.error{color:#D14;font-size:13px;margin-top:10px}.kbd-box{background:var(--gs-50);border:1px solid var(--line);border-radius:12px;padding:16px;font-family:SF Mono,Menlo,monospace;font-size:13px;word-break:break-all;margin:12px 0}@media (max-width:720px){.wrap{padding:0 16px 64px}.nav{gap:12px;margin-bottom:32px;flex-wrap:wrap}.nav .brand img{height:20px}.nav .right{gap:10px}.nav a.item{font-size:13px}.hero h1{font-size:30px;letter-spacing:-.6px}.hero p{font-size:15px}.section-title{font-size:19px;margin:40px 0 14px}.card{padding:20px;border-radius:14px}.card .price{font-size:26px}.card .btn-row{flex-direction:column}}@media (max-width:420px){.hero h1{font-size:26px}.btn{height:46px;font-size:14px}}.btn-row{display:flex;gap:8px}