:root{--bg:#f4f1ea;--bg2:#ebe6db;--card:#fffdf8;--line:#d9d2c3;--ink:#16130e;--muted:#6b6457;--brand:#1b2a4a;--brand-ink:#fff;--accent:#e0a526;--accent-ink:#1a1300;--code:#101826;--dot:#c9c1b1}
@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#0d1117;--bg2:#121821;--card:#161b22;--line:#2b323c;--ink:#eef1f5;--muted:#9aa4b1;--brand:#f2b84b;--brand-ink:#1a1300;--accent:#f2b84b;--accent-ink:#1a1300;--code:#0a0f16;--dot:#3a434f}}
:root[data-theme=dark]{--bg:#0d1117;--bg2:#121821;--card:#161b22;--line:#2b323c;--ink:#eef1f5;--muted:#9aa4b1;--brand:#f2b84b;--brand-ink:#1a1300;--accent:#f2b84b;--accent-ink:#1a1300;--code:#0a0f16;--dot:#3a434f}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Pretendard",-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Noto Sans KR",sans-serif;line-height:1.7;word-break:keep-all}
a{color:inherit}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.narrow{max-width:740px}
/* top bar */
header.top{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.logo{display:flex;align-items:center;gap:8px;font-weight:800;font-size:19px;text-decoration:none;letter-spacing:-.02em}
.logo i{width:26px;height:26px;border-radius:8px;background:var(--brand);display:grid;place-items:center}
.logo i:after{content:"";width:10px;height:12px;border:2.5px solid var(--brand-ink);border-radius:3px 3px 4px 4px;border-top-width:5px}
nav.menu{display:flex;gap:22px;font-size:14px}
nav.menu a{color:var(--muted);text-decoration:none}
nav.menu a:hover{color:var(--ink)}
.right{display:flex;gap:8px;align-items:center}
.theme{border:1px solid var(--line);background:var(--card);color:var(--ink);border-radius:999px;padding:6px 12px;font-size:13px;cursor:pointer}
.btn{display:inline-block;background:var(--brand);color:var(--brand-ink);font-weight:800;padding:14px 24px;border-radius:12px;text-decoration:none;letter-spacing:-.01em;border:0}
.btn.sm{padding:9px 16px;font-size:14px;border-radius:10px}
.btn.ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line)}
@media (max-width:820px){nav.menu{display:none}}
/* hero */
.hero{position:relative;overflow:hidden;padding:64px 0 72px;background-image:radial-gradient(var(--dot) 1px,transparent 1px);background-size:22px 22px}
.hero .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
@media (max-width:900px){.hero .wrap{grid-template-columns:1fr}.phone{margin:0 auto}}
.pill{display:inline-flex;flex-wrap:wrap;gap:8px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:999px;padding:6px 14px;font-size:12.5px;color:var(--muted);font-weight:600;letter-spacing:.02em}
.pill b{color:var(--ink)}
.hero h1{font-size:clamp(36px,6.4vw,64px);line-height:1.12;letter-spacing:-.045em;margin:22px 0 18px;font-weight:900}
.hero h1 s{text-decoration:none;background:linear-gradient(transparent 52%,var(--accent) 52%,var(--accent) 62%,transparent 62%)}
.hero h1 em{font-style:normal;color:var(--brand)}
.lead{border-left:3px solid var(--accent);padding-left:14px;margin:0 0 28px;font-size:17px}
.lead b{display:block}
.lead span{color:var(--muted)}
.cta-row{display:flex;gap:10px;flex-wrap:wrap}
.fine{margin-top:16px;color:var(--muted);font-size:13px}
/* phone mock */
.phone{width:290px;height:590px;border-radius:46px;background:var(--card);border:10px solid var(--ink);box-shadow:0 30px 60px -20px rgba(0,0,0,.35);position:relative;padding:58px 22px 24px;text-align:center}
.phone:before{content:"";position:absolute;top:12px;left:50%;transform:translateX(-50%);width:92px;height:26px;border-radius:20px;background:var(--ink)}
.phone .ico{width:44px;height:44px;margin:24px auto 10px;border-radius:12px;background:var(--bg2);display:grid;place-items:center;font-size:20px}
.phone p{margin:0 0 22px;font-weight:700}
.phone svg{width:210px;height:210px}
.phone small{display:block;color:var(--muted);margin-top:26px;font-size:12px}
.trace{stroke:var(--brand);stroke-width:6;fill:none;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:640;stroke-dashoffset:640;animation:draw 4.5s ease-in-out infinite}
@keyframes draw{0%{stroke-dashoffset:640}45%,80%{stroke-dashoffset:0}100%{stroke-dashoffset:0;opacity:0}}
@media (prefers-reduced-motion:reduce){.trace{animation:none;stroke-dashoffset:0}}
/* strip */
.strip{background:var(--brand);color:var(--brand-ink);font-weight:800;letter-spacing:.06em;font-size:14px}
.strip .wrap{display:flex;gap:28px;justify-content:center;flex-wrap:wrap;padding:16px 20px}
/* sections */
section.block{padding:84px 0;border-bottom:1px solid var(--line)}
.eyebrow{font-size:12.5px;font-weight:800;letter-spacing:.12em;color:var(--accent);text-transform:uppercase}
h2.big{font-size:clamp(28px,4.4vw,42px);letter-spacing:-.035em;line-height:1.2;margin:8px 0 14px}
.sub{color:var(--muted);max-width:620px;margin:0 0 36px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px}
.card h3{margin:0 0 6px;font-size:18px;letter-spacing:-.02em}
.card p{margin:0;color:var(--muted);font-size:15px}
.tag{display:inline-block;font-size:11px;font-weight:800;letter-spacing:.06em;padding:3px 8px;border-radius:6px;background:var(--bg2);color:var(--muted);margin-bottom:12px}
.tag.pro{background:var(--accent);color:var(--accent-ink)}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;counter-reset:s}
.steps .card:before{counter-increment:s;content:"0" counter(s);display:block;font-size:34px;font-weight:900;color:var(--accent);letter-spacing:-.04em;margin-bottom:6px}
.sec{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center}
@media (max-width:860px){.sec{grid-template-columns:1fr}}
.checks{list-style:none;padding:0;margin:0}
.checks li{padding:12px 0;border-bottom:1px solid var(--line);font-weight:600}
.checks li:before{content:"✓";color:var(--accent);font-weight:900;margin-right:10px}
pre.code{background:var(--code);color:#cfe3ff;border-radius:16px;padding:22px;font-size:13.5px;line-height:1.75;overflow-x:auto;margin:0}
pre.code .k{color:#f2b84b}pre.code .c{color:#6f8299}
.dark-band{background:var(--ink);color:var(--bg)}
.dark-band .sub,.dark-band p{color:color-mix(in srgb,var(--bg) 70%,transparent)}
div.tbl{overflow-x:auto;border-radius:16px;border:1px solid var(--line);background:var(--card)}
table.cmp{width:100%;min-width:560px;border-collapse:collapse;font-size:15px}
table.cmp tr:last-child td{border-bottom:0}
table.cmp th,table.cmp td{border-bottom:1px solid var(--line);padding:14px 16px;text-align:left;white-space:nowrap}
table.cmp th{background:var(--bg2)}
table.cmp td.y{color:var(--accent);font-weight:800}
.price{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}
.price .card{text-align:center}
.price .card.best{border:2px solid var(--accent)}
.price b{display:block;font-size:30px;letter-spacing:-.03em;margin:4px 0}
details{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin-bottom:10px}
details summary{font-weight:700;cursor:pointer;list-style:none}
details summary::-webkit-details-marker{display:none}
details summary:after{content:"+";float:right;color:var(--muted)}
details[open] summary:after{content:"−"}
details p{color:var(--muted);margin:12px 0 0}
.final{text-align:center;padding:96px 0}
/* guides list + articles */
.list a{display:block;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin-bottom:10px;text-decoration:none;font-weight:700}
.list a span{display:block;color:var(--muted);font-size:14px;margin-top:4px;font-weight:400}
article{padding-bottom:40px}
article h1{font-size:clamp(28px,5.6vw,38px);line-height:1.3;letter-spacing:-.03em;margin:44px 0 8px}
article .meta{color:var(--muted);font-size:14px;margin-bottom:26px}
article h2{margin-top:44px;font-size:23px;letter-spacing:-.02em}
article a{color:var(--brand)}
.answer{background:var(--card);border:1px solid var(--line);border-left:4px solid var(--accent);padding:18px 20px;border-radius:12px}
article table{width:100%;border-collapse:collapse;margin:16px 0;font-size:15px;display:block;overflow-x:auto}
article th,article td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
article th{background:var(--bg2)}
.cta{background:var(--brand);color:var(--brand-ink);border-radius:18px;padding:26px;margin:40px 0;text-align:center}
.cta p{margin:0 0 16px}
.cta .btn{background:var(--brand-ink);color:var(--brand)}
footer{color:var(--muted);font-size:14px;padding:36px 0 56px}
footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
footer a{color:var(--muted)}