@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;500;700&display=swap');

:root{
  --mint:#5cc6b0;
  --mint-deep:#3fa38f;
  --sand:#d4c4a8;
  --ink:#172623;
  --ink-soft:#2c423b;
  --clay:#c67b5c;
  --olive:#6b7b3c;
  --cream:#f7f1e6;
  --paper:#fdfaf3;
  --line:rgba(23,38,35,.14);
  --line-soft:rgba(23,38,35,.08);
  --r:18px;
  --wrap:1160px;
  --ease:cubic-bezier(.19,1,.22,1);
  --shadow:0 18px 40px -26px rgba(23,38,35,.45);
}

*{box-sizing:border-box}

html{
  scroll-behavior:smooth;
  -webkit-text-size-adjust:100%;
}

body{
  margin:0;
  background:
    radial-gradient(1200px 600px at 10% -10%, #fbf6ec 0%, rgba(251,246,236,0) 60%),
    radial-gradient(900px 520px at 100% 0%, rgba(212,196,168,.45) 0%, rgba(212,196,168,0) 65%),
    var(--cream);
  color:var(--ink);
  font-family:'Noto Sans KR', system-ui, -apple-system, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  font-size:17px;
  line-height:1.78;
  font-weight:400;
  overflow-x:hidden;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:2;
  pointer-events:none;
  opacity:.55;
  background-image:
    radial-gradient(rgba(23,38,35,.055) 1px, transparent 1px),
    radial-gradient(rgba(198,123,92,.055) 1px, transparent 1px);
  background-size:7px 7px, 13px 13px;
  background-position:0 0, 3px 5px;
}

body.locked{overflow:hidden}

img{max-width:100%;height:auto}

a{color:var(--ink);text-decoration-color:rgba(92,198,176,.75);text-underline-offset:3px}

h1,h2,h3,h4{line-height:1.3;letter-spacing:-.015em;margin:0}

p{margin:0 0 1em}

.skip{
  position:absolute;
  left:-9999px;
  top:0;
  z-index:90;
  padding:12px 20px;
  background:var(--ink);
  color:var(--paper);
  border-radius:0 0 14px 0;
  text-decoration:none;
}
.skip:focus{left:0}

/* ---------- 顶栏 ---------- */
.bar{
  position:sticky;
  top:0;
  z-index:30;
  display:flex;
  align-items:center;
  gap:10px;
  padding:9px clamp(14px,4vw,26px);
  background:rgba(247,241,230,.95);
  border-bottom:1px solid var(--line-soft);
}

.mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:44px;
  min-height:44px;
  text-decoration:none;
  color:var(--ink);
}

.mark-img{
  width:38px;
  height:38px;
  object-fit:cover;
  border-radius:15px 15px 15px 5px;
  display:block;
}

.mark-txt{
  width:38px;
  height:38px;
  display:grid;
  place-items:center;
  border-radius:15px 15px 15px 5px;
  background:var(--ink);
  color:var(--mint);
  font-size:18px;
  font-weight:700;
}

.cta{
  margin-left:auto;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:10px 20px;
  border-radius:999px;
  background:var(--ink);
  color:var(--paper);
  font-size:16px;
  font-weight:500;
  text-decoration:none;
  transition:background .3s var(--ease), transform .3s var(--ease);
}
.cta:hover{background:var(--ink-soft);transform:translateY(-1px)}

.burger{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:44px;
  padding:10px 15px;
  border:1px solid var(--line);
  border-radius:14px;
  background:transparent;
  color:var(--ink);
  font-family:inherit;
  font-size:16px;
  cursor:pointer;
}
.burger-i{display:grid;gap:4px}
.burger-i i{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px}
.burger[aria-expanded="true"]{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.burger[aria-expanded="true"] .burger-i i{background:var(--paper)}

/* ---------- 全屏菜单 ---------- */
.veil{
  display:none;
  position:fixed;
  inset:0;
  z-index:40;
  padding:86px clamp(20px,6vw,60px) 40px;
  overflow:auto;
  color:var(--cream);
  background:
    radial-gradient(700px 400px at 85% 10%, rgba(92,198,176,.22), rgba(92,198,176,0) 65%),
    linear-gradient(165deg, #172623 0%, #1f3a32 55%, #2a4a3f 100%);
}
.veil.open{display:block;animation:veilIn .42s var(--ease) both}

@keyframes veilIn{
  from{opacity:0;transform:translateY(-12px)}
  to{opacity:1;transform:none}
}

.veil-nav p{
  margin:0;
  display:flex;
  flex-direction:column;
  gap:4px;
  max-width:760px;
}

.veil-nav a{
  display:flex;
  align-items:center;
  min-height:56px;
  padding:10px 4px;
  color:var(--cream);
  font-size:clamp(19px,3.4vw,28px);
  font-weight:500;
  text-decoration:none;
  border-bottom:1px solid rgba(247,241,230,.16);
  transition:color .28s var(--ease), padding-left .28s var(--ease);
}
.veil-nav a:hover{color:var(--mint);padding-left:12px}

/* ---------- 首屏 ---------- */
.hero{
  display:grid;
  grid-template-columns:1.06fr .94fr;
  align-items:center;
  gap:clamp(22px,4vw,56px);
  min-height:100svh;
  max-width:var(--wrap);
  margin:0 auto;
  padding:clamp(26px,6vw,68px) clamp(18px,5vw,60px);
}

.hero-copy{text-align:center}

.badge{
  display:inline-flex;
  align-items:center;
  padding:7px 16px;
  margin-bottom:18px;
  border-radius:999px;
  border:1px solid var(--sand);
  background:rgba(212,196,168,.35);
  color:var(--ink-soft);
  font-size:16px;
}

.hero h1{
  font-size:clamp(29px,4.8vw,52px);
  font-weight:700;
  letter-spacing:-.03em;
  margin-bottom:18px;
}

.hero-desc{
  max-width:38ch;
  margin:0 auto 26px;
  color:var(--ink-soft);
  font-size:17px;
  font-weight:300;
}

.hero-btn{
  display:inline-flex;
  align-items:center;
  min-height:48px;
  padding:12px 28px;
  border-radius:999px;
  background:var(--mint);
  color:var(--ink);
  font-weight:700;
  text-decoration:none;
  box-shadow:var(--shadow);
  transition:transform .3s var(--ease), background .3s var(--ease);
}
.hero-btn:hover{background:var(--mint-deep);transform:translateY(-2px)}

.hero-art{
  position:relative;
  aspect-ratio:4/5;
  border-radius:26px 26px 26px 90px;
  overflow:hidden;
  background:linear-gradient(155deg, var(--sand), #cbb79a 55%, #b8a888);
  box-shadow:var(--shadow);
}

.hero-img{width:100%;height:100%;object-fit:cover;display:block}
.hero-ph{width:100%;height:100%;background:
  radial-gradient(60% 50% at 30% 25%, rgba(92,198,176,.45), rgba(92,198,176,0) 70%),
  linear-gradient(150deg, #d9caae, #bfae90)}

.float-tag{
  position:absolute;
  left:16px;
  bottom:16px;
  max-width:calc(100% - 32px);
  padding:9px 16px;
  border-radius:14px;
  background:var(--mint);
  color:var(--ink);
  font-size:16px;
  font-weight:500;
  box-shadow:0 12px 24px -16px rgba(23,38,35,.7);
}

/* ---------- 主体 ---------- */
.shell{
  display:grid;
  grid-template-columns:228px minmax(0,1fr);
  gap:clamp(20px,3vw,44px);
  align-items:start;
  max-width:var(--wrap);
  margin:0 auto;
  padding:clamp(26px,5vw,64px) clamp(18px,5vw,60px);
}

.rail{
  position:sticky;
  top:82px;
  padding:20px 18px;
  border-radius:var(--r);
  border-left:3px solid var(--mint);
  background:rgba(212,196,168,.32);
}

.rail-h{
  font-size:16px;
  font-weight:700;
  letter-spacing:.16em;
  margin-bottom:6px;
}

.subtitle{
  margin:0 0 14px;
  font-size:16px;
  line-height:1.6;
  font-weight:300;
  color:var(--ink-soft);
}

.rail-list{
  list-style:none;
  counter-reset:r;
  margin:0;
  padding:0;
  display:grid;
  gap:2px;
}

.rail-list li{counter-increment:r}

.rail-list a{
  display:flex;
  align-items:center;
  gap:9px;
  min-height:40px;
  padding:6px 2px;
  font-size:16px;
  text-decoration:none;
  color:var(--ink-soft);
  border-bottom:1px solid var(--line-soft);
}
.rail-list a::before{
  content:counter(r, decimal-leading-zero);
  font-size:13px;
  letter-spacing:.08em;
  color:var(--clay);
}
.rail-list a:hover{color:var(--ink)}
.rail-list a:hover::before{color:var(--mint-deep)}

/* 正文 */
.doc{min-width:0}

.doc div{
  scroll-margin-top:88px;
  margin:0 0 26px;
  padding:24px clamp(16px,2.4vw,30px) 26px;
  background:var(--paper);
  border-radius:var(--r);
  border-bottom:3px solid var(--sand);
  box-shadow:0 16px 34px -30px rgba(23,38,35,.6);
}

.doc div:nth-child(even){border-bottom-color:var(--mint)}
.doc div:last-child{margin-bottom:0}

.doc h2{
  font-size:clamp(21px,2.6vw,27px);
  font-weight:700;
  margin-bottom:14px;
  letter-spacing:-.02em;
}

.doc h2::after{
  content:"";
  display:block;
  width:42px;
  height:3px;
  margin-top:12px;
  border-radius:3px;
  background:var(--clay);
}

.doc h3{font-size:19px;font-weight:700;margin:22px 0 10px}
.doc h4{font-size:17px;font-weight:700;margin:18px 0 8px}

.doc p,
.doc li{font-size:17px;line-height:1.85;color:var(--ink-soft)}

.doc strong{color:var(--ink)}

.doc ul,
.doc ol{padding-left:1.3em;margin:0 0 1em}
.doc li{margin-bottom:.45em}

.doc blockquote{
  margin:20px 0;
  padding:14px 20px;
  border-left:3px solid var(--mint);
  border-radius:0 var(--r) var(--r) 0;
  background:rgba(92,198,176,.12);
  color:var(--ink);
}
.doc blockquote p:last-child{margin-bottom:0}

.doc img{border-radius:var(--r);display:block;margin:18px 0}

.doc a{color:var(--ink);text-decoration-color:var(--mint-deep)}

.doc table{width:100%;border-collapse:collapse;margin:18px 0;font-size:16px}
.doc th,.doc td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left}
.doc th{background:rgba(212,196,168,.35);font-weight:700}

.doc code{
  font-size:15px;
  background:rgba(212,196,168,.45);
  padding:2px 6px;
  border-radius:6px;
}

/* ---------- 页脚 ---------- */
.foot{
  margin-top:36px;
  padding:clamp(32px,5vw,62px) clamp(18px,5vw,60px) 22px;
  border-radius:36px 36px 0 0;
  background:linear-gradient(180deg, #1d322c 0%, #172623 100%);
  color:#e9e3d7;
}

.foot-cta{
  max-width:var(--wrap);
  margin:0 auto 30px;
  padding-bottom:26px;
  border-bottom:1px solid rgba(233,227,215,.18);
}

.foot-h{font-size:clamp(22px,3vw,30px);font-weight:700;margin-bottom:10px;color:#f5efe3}
.foot-p{margin:0 0 18px;font-size:16px;font-weight:300;color:rgba(233,227,215,.8)}

.foot-btn{
  display:inline-flex;
  align-items:center;
  min-height:44px;
  padding:11px 26px;
  border-radius:999px;
  background:var(--mint);
  color:var(--ink);
  font-weight:700;
  text-decoration:none;
}

.foot-grid{
  display:grid;
  grid-template-columns:repeat(3, minmax(0,1fr));
  gap:clamp(18px,3vw,34px);
  max-width:var(--wrap);
  margin:0 auto 26px;
}

.foot-dl{margin:0}

.foot dt{
  font-size:14px;
  letter-spacing:.18em;
  color:var(--mint);
  margin-bottom:8px;
}

.foot dd{
  margin:0;
  font-size:16px;
  color:rgba(233,227,215,.86);
}

.foot dd a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  color:rgba(233,227,215,.86);
  text-decoration:none;
}
.foot dd a:hover{color:var(--mint)}

.copy{
  max-width:var(--wrap);
  margin:0 auto;
  padding-top:18px;
  border-top:1px solid rgba(233,227,215,.14);
  font-size:14px;
  color:rgba(233,227,215,.6);
  text-align:center;
}

/* ---------- 回到顶部 ---------- */
.totop{
  position:fixed;
  right:16px;
  bottom:16px;
  z-index:25;
  min-height:44px;
  padding:11px 18px;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--paper);
  color:var(--ink);
  font-family:inherit;
  font-size:16px;
  cursor:pointer;
  opacity:0;
  pointer-events:none;
  transform:translateY(8px);
  transition:opacity .3s var(--ease), transform .3s var(--ease);
}
.totop.show{opacity:1;pointer-events:auto;transform:none}

/* ---------- 动效 ---------- */
.rv{opacity:0;transform:translateY(20px);transition:opacity .7s var(--ease), transform .7s var(--ease)}
.rv.in{opacity:1;transform:none}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .rv{opacity:1;transform:none;transition:none}
  .veil.open{animation:none}
  *{transition-duration:.01ms !important}
}

/* ---------- 窄屏 ---------- */
@media (max-width: 880px){
  .hero{
    grid-template-columns:1fr;
    min-height:0;
    padding-top:22px;
    padding-bottom:34px;
  }
  .hero-art{aspect-ratio:16/11;border-radius:22px 22px 22px 64px}
  .shell{grid-template-columns:1fr;gap:22px}
  .rail{position:static}
  .foot-grid{grid-template-columns:1fr}
}

@media (max-width: 460px){
  body{font-size:16px}
  .doc p, .doc li{font-size:16px}
  .burger-t{display:none}
  .burger{padding:10px 13px}
  .cta{padding:10px 16px;font-size:16px}
  .foot{border-radius:26px 26px 0 0}
  .totop{right:12px;bottom:12px}
}

button[aria-expanded]{min-width:44px;min-height:44px}