.u-section-1 {
  min-height: 400px;
}

.u-section-1 .u-custom-html-1 {
  height: auto;
  min-height: 400px;
  margin-top: 0;
  margin-bottom: 0;
}/* ==========================================================================
   오피스타 안내 — 모래·세이지(sand & sage) 스킨
   스코프: #os-root
   ※ 이미지 자리(.bm-ph 계열) PC/모바일 크기 수치는 원본 규칙 그대로 (파일 하단)
   ※ 플로팅 배너(.bd-dock)는 위치·구조 유지, 문구·색만 변경
   ========================================================================== */
html, body {
    margin: 0;
    padding: 0;
    background: #f4efe6;
}
#os-root {
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    all: revert;
    box-sizing: border-box;
    font-family: "Pretendard Variable", Pretendard, "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
    background:
        linear-gradient(180deg, rgba(95, 127, 106, 0.08) 0, rgba(95, 127, 106, 0) 320px),
        #f4efe6;
    color: #2b2a26;
    line-height: 1.85;
    letter-spacing: -0.01em;
    word-break: keep-all;
    overflow-wrap: anywhere;
    overflow-x: clip;
}
#os-root *, #os-root *::before, #os-root *::after { box-sizing: border-box; }
#os-root img { max-width: 100%; height: auto; display: block; }
#os-root a { color: #3f6350; text-decoration: underline; text-decoration-color: rgba(95, 127, 106, 0.35); text-underline-offset: 3px; }
#os-root a:hover { text-decoration-color: #3f6350; }
#os-root strong { color: #2b2a26; font-weight: 700; }
#os-root em { font-style: normal; color: #a35a3b; font-weight: 600; }
#os-root mark { background: rgba(184, 154, 74, 0.2); color: #2b2a26; padding: 0 3px; }
#os-root :focus-visible { outline: 2px solid #c2714f; outline-offset: 3px; }
#os-root [id] { scroll-margin-top: 84px; }
#os-root .os-frame {
    width: 100%;
    max-width: 1120px;
    margin-inline: auto;
    padding-inline: 28px;
}
/* ---------- 상단 얇은 띠 + 브랜드 ---------- */
#os-root .os-topline {
    background: #2b2a26;
    color: #ede5d6;
    font-size: 0.76rem;
    letter-spacing: 0.06em;
}
#os-root .os-topline .os-frame {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding-block: 7px;
}
#os-root .os-topline span + span { color: #c4b797; }
#os-root .os-masthead {
    position: sticky;
    top: 0;
    z-index: 40;
    background: rgba(244, 239, 230, 0.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid #d9cfbb;
}
#os-root .os-masthead .os-frame {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding-block: 13px;
}
#os-root .os-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: #2b2a26;
    font-family: "Noto Serif KR", "Nanum Myeongjo", "Apple SD Gothic Neo", serif;
    font-size: 1.18rem;
    font-weight: 700;
}
#os-root .os-brand-leaf {
    width: 22px;
    height: 22px;
    border-radius: 50% 0 50% 0;
    background: linear-gradient(140deg, #5f7f6a, #3f6350);
    transform: rotate(-12deg);
}
#os-root .os-brand small {
    font-family: "Pretendard Variable", Pretendard, "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
    font-size: 0.7rem;
    font-weight: 500;
    color: #8a8477;
    letter-spacing: 0.1em;
    margin-left: 2px;
}
#os-root .os-quick {
    display: flex;
    gap: 22px;
    margin: 0;
    padding: 0;
    list-style: none;
    font-size: 0.86rem;
}
#os-root .os-quick a {
    text-decoration: none;
    color: #5a564d;
    padding-bottom: 2px;
    border-bottom: 2px solid transparent;
}
#os-root .os-quick a:hover { color: #2b2a26; border-bottom-color: #c2714f; }
/* ---------- 히어로: 좌우 분할 ---------- */
#os-root .os-hero {
    padding: 36px 0 28px;
}
#os-root .os-hero-art { margin: 0 0 30px; }
#os-root .os-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
    gap: 40px;
    align-items: end;
}
#os-root .os-kicker {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 0 0 14px;
    font-size: 0.78rem;
    letter-spacing: 0.12em;
    color: #3f6350;
    font-weight: 600;
}
#os-root .os-kicker::before {
    content: "";
    width: 28px;
    height: 2px;
    background: #5f7f6a;
}
#os-root h1 {
    margin: 0 0 18px;
    font-family: "Noto Serif KR", "Nanum Myeongjo", "Apple SD Gothic Neo", serif;
    font-size: clamp(1.9rem, 4.2vw, 2.9rem);
    font-weight: 700;
    line-height: 1.28;
    letter-spacing: -0.025em;
    color: #2b2a26;
}
#os-root h1 span {
    color: #a35a3b;
    box-shadow: inset 0 -0.35em 0 #f3e2d8;
}
#os-root .os-hero-copy {
    margin: 0;
    max-width: 58ch;
    font-size: clamp(1rem, 1.35vw, 1.08rem);
    line-height: 1.9;
    color: #5a564d;
}
#os-root .os-hero-aside {
    padding: 22px 24px;
    background: #fffcf6;
    border: 1px solid #d9cfbb;
    border-top: 4px solid #5f7f6a;
    border-radius: 4px;
}
#os-root .os-hero-aside b {
    display: block;
    margin-bottom: 10px;
    font-family: "Noto Serif KR", "Nanum Myeongjo", "Apple SD Gothic Neo", serif;
    font-size: 1rem;
    color: #2b2a26;
}
#os-root .os-hero-aside dl { margin: 0; }
#os-root .os-hero-aside dt {
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    color: #8a8477;
    font-weight: 600;
}
#os-root .os-hero-aside dd {
    margin: 2px 0 12px;
    font-size: 0.9rem;
    line-height: 1.7;
    color: #5a564d;
}
#os-root .os-hero-aside dd:last-child { margin-bottom: 0; }
/* 안내 버튼 — 폭 500px, 모바일 100% (플로팅 배너와 같은 톤) */
#os-root .os-cta { margin: 26px 0 0; }
#os-root .os-cta-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 16px;
    width: 500px;
    max-width: 100%;
    padding: 15px 22px 15px 18px;
    background: linear-gradient(135deg, #3f6350, #2c4a3a);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 6px;
    box-shadow: 0 16px 34px rgba(63, 99, 80, 0.32);
    color: #fff;
    text-decoration: none;
    text-align: left;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
#os-root .os-cta-btn:hover { transform: translateY(-2px); box-shadow: 0 20px 40px rgba(63, 99, 80, 0.4); }
#os-root .os-cta-glow {
    position: absolute;
    inset: -4px;
    z-index: -1;
    border-radius: 8px;
    background: linear-gradient(115deg, #5f7f6a 0%, #c2714f 60%, #b89a4a 100%);
    filter: blur(14px);
    opacity: 0.35;
    animation: bd-glow-rim 3.4s ease-in-out infinite;
}
#os-root .os-cta-ico {
    flex: none;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    color: #2c4a3a;
    background: linear-gradient(135deg, #f4efe6, #dfe8e0);
    animation: bd-dock-ping 2.1s ease-out infinite;
}
#os-root .os-cta-txt {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    gap: 2px;
    line-height: 1.3;
    min-width: 0;
}
#os-root .os-cta-txt b { font-family: "Noto Serif KR", "Nanum Myeongjo", "Apple SD Gothic Neo", serif; font-size: 1.2rem; font-weight: 700; color: #fff; }
#os-root .os-cta-txt em { font-size: 0.75rem; font-weight: 500; letter-spacing: 0.02em; color: #dfe8e0; }
#os-root .os-cta-arrow {
    flex: none;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.45);
    animation: bd-dock-slide 1.9s ease-in-out infinite;
}
/* ---------- 본문: 왼쪽 레일(차례) + 오른쪽 내용 ---------- */
#os-root .os-body {
    display: grid;
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 56px;
    padding: 30px 0 70px;
}
#os-root .os-rail {
    position: sticky;
    top: 78px;
    align-self: start;
    max-height: calc(100vh - 96px);
    overflow-y: auto;
    padding-right: 6px;
}
#os-root .os-rail-h {
    margin: 0 0 12px;
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    color: #8a8477;
    font-weight: 600;
}
#os-root .os-rail ol {
    margin: 0;
    padding: 0;
    list-style: none;
    border-left: 1px solid #d9cfbb;
}
#os-root .os-rail li a {
    display: block;
    padding: 6px 0 6px 14px;
    margin-left: -1px;
    border-left: 2px solid transparent;
    font-size: 0.84rem;
    line-height: 1.5;
    color: #5a564d;
    text-decoration: none;
}
#os-root .os-rail li a:hover { color: #2b2a26; border-left-color: #c2714f; }
#os-root .os-rail-foot {
    margin: 14px 0 0;
    font-size: 0.76rem;
    line-height: 1.6;
    color: #8a8477;
}
/* 그리드 칸이 내용(가로 차례 띠 등)에 밀려 넓어지지 않도록 */
#os-root .os-body > *,
#os-root .os-twin > *,
#os-root .os-content { min-width: 0; }
/* 모바일용 가로 차례 (PC에서는 숨김) */
#os-root .os-strip { display: none; max-width: 100%; }
/* ---------- 절(section) 공통 ---------- */
#os-root .os-sec {
    padding: 40px 0 46px;
    border-bottom: 1px solid #d9cfbb;
}
#os-root .os-sec:first-child { padding-top: 6px; }
#os-root .os-sec:last-child { border-bottom: 0; }
#os-root .os-sec-head {
    display: flex;
    align-items: baseline;
    gap: 14px;
    margin: 0 0 20px;
}
#os-root .os-roman {
    flex: none;
    font-family: "Noto Serif KR", "Nanum Myeongjo", "Apple SD Gothic Neo", serif;
    font-size: 0.82rem;
    letter-spacing: 0.08em;
    color: #a35a3b;
    padding: 2px 8px;
    border: 1px solid #c2714f;
    border-radius: 2px;
    line-height: 1.4;
}
#os-root h2 {
    margin: 0;
    font-family: "Noto Serif KR", "Nanum Myeongjo", "Apple SD Gothic Neo", serif;
    font-size: clamp(1.32rem, 2.5vw, 1.78rem);
    font-weight: 700;
    line-height: 1.38;
    letter-spacing: -0.02em;
    color: #2b2a26;
}
#os-root h3 {
    margin: 28px 0 10px;
    font-family: "Noto Serif KR", "Nanum Myeongjo", "Apple SD Gothic Neo", serif;
    font-size: 1.08rem;
    font-weight: 700;
    line-height: 1.5;
    color: #3f6350;
}
#os-root h3::before { content: "\25E6  "; color: #c2714f; }
#os-root h3:first-of-type { margin-top: 20px; }
#os-root .os-prose { max-width: 64ch; }
#os-root .os-prose p { margin: 0 0 15px; }
#os-root .os-prose p:last-child { margin-bottom: 0; }
#os-root .os-prose + .os-prose { margin-top: 16px; }
#os-root .os-prose .os-first {
    font-size: 1.05rem;
    color: #2b2a26;
}
/* 절 변형 */
#os-root .os-sec--card {
    margin: 18px 0;
    padding: 34px 32px 38px;
    background: #fffcf6;
    border: 1px solid #d9cfbb;
    border-radius: 6px;
}
#os-root .os-sec--tint {
    padding-inline: 32px;
    background: #dfe8e0;
    border-radius: 6px;
    border-bottom: 0;
    margin: 18px 0;
}
#os-root .os-sec--tint .os-roman { border-color: #3f6350; color: #3f6350; }
/* 두 단: 본문 + 옆 메모 */
#os-root .os-twin {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 250px;
    gap: 32px;
    align-items: start;
}
#os-root .os-memo {
    padding: 16px 18px;
    background: #f3e2d8;
    border-radius: 4px;
    font-size: 0.86rem;
    line-height: 1.7;
    color: #5a564d;
}
#os-root .os-memo b {
    display: block;
    margin-bottom: 6px;
    font-family: "Noto Serif KR", "Nanum Myeongjo", "Apple SD Gothic Neo", serif;
    font-size: 0.92rem;
    color: #a35a3b;
}
#os-root .os-memo ul { margin: 0; padding-left: 16px; }
#os-root .os-memo li + li { margin-top: 4px; }
/* ---------- 절차: 가로 숫자 카드 ---------- */
#os-root .os-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    margin: 24px 0 0;
    padding: 0;
    list-style: none;
    counter-reset: st;
}
#os-root .os-steps li {
    counter-increment: st;
    padding: 16px 16px 14px;
    background: #fffcf6;
    border: 1px solid #d9cfbb;
    border-radius: 4px;
    font-size: 0.88rem;
}
#os-root .os-steps li::before {
    content: counter(st, decimal-leading-zero);
    display: block;
    margin-bottom: 8px;
    font-family: "Noto Serif KR", "Nanum Myeongjo", "Apple SD Gothic Neo", serif;
    font-size: 1.3rem;
    color: #c2714f;
}
#os-root .os-steps b { display: block; color: #2b2a26; margin-bottom: 4px; }
#os-root .os-steps span { color: #5a564d; line-height: 1.6; display: block; }
/* ---------- 사전: 큰 항목 카드 ---------- */
#os-root .os-lexicon {
    margin: 24px 0 0;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
}
#os-root .os-lexicon article {
    padding: 16px 18px;
    background: #fffcf6;
    border-left: 3px solid #5f7f6a;
    border-radius: 0 4px 4px 0;
}
#os-root .os-lexicon h4 {
    margin: 0 0 6px;
    font-family: "Noto Serif KR", "Nanum Myeongjo", "Apple SD Gothic Neo", serif;
    font-size: 1.02rem;
    color: #2b2a26;
}
#os-root .os-lexicon h4 small { margin-left: 6px; font-family: "Pretendard Variable", Pretendard, "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", sans-serif; font-size: 0.72rem; font-weight: 500; color: #8a8477; }
#os-root .os-lexicon p { margin: 0; font-size: 0.88rem; line-height: 1.7; color: #5a564d; }
#os-root .os-lexicon .os-fit { margin-top: 8px; font-size: 0.8rem; color: #3f6350; }
/* ---------- 용어: 줄 목록 ---------- */
#os-root .os-glossary { margin: 20px 0 0; }
#os-root .os-glossary > div {
    display: grid;
    grid-template-columns: 130px 1fr;
    gap: 16px;
    padding: 11px 0;
    border-bottom: 1px dashed #c4b797;
}
#os-root .os-glossary dt { margin: 0; font-weight: 700; color: #2b2a26; }
#os-root .os-glossary dd { margin: 0; font-size: 0.9rem; line-height: 1.7; color: #5a564d; }
/* ---------- 체크 목록 (2단 흐름) ---------- */
#os-root .os-tick {
    margin: 22px 0 0;
    padding: 0;
    list-style: none;
    columns: 2;
    column-gap: 28px;
}
#os-root .os-tick li {
    break-inside: avoid;
    display: grid;
    grid-template-columns: 20px 1fr;
    gap: 10px;
    padding: 8px 0;
    font-size: 0.9rem;
}
#os-root .os-tick li::before {
    content: "";
    width: 16px;
    height: 16px;
    margin-top: 6px;
    border: 1.5px solid #3f6350;
    border-radius: 50%;
}
/* ---------- 시간대 세 칸 ---------- */
#os-root .os-clock {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    margin: 22px 0 0;
    padding: 0;
    list-style: none;
    border: 1px solid #d9cfbb;
    border-radius: 6px;
    overflow: hidden;
    background: #fffcf6;
}
#os-root .os-clock li { padding: 18px 20px; }
#os-root .os-clock li + li { border-left: 1px solid #d9cfbb; }
#os-root .os-clock b { display: block; font-family: "Noto Serif KR", "Nanum Myeongjo", "Apple SD Gothic Neo", serif; font-size: 1.05rem; color: #a35a3b; }
#os-root .os-clock small { display: block; margin: 2px 0 8px; font-size: 0.74rem; letter-spacing: 0.06em; color: #8a8477; }
#os-root .os-clock p { margin: 0; font-size: 0.88rem; line-height: 1.7; color: #5a564d; }
/* ---------- 예산 단계 ---------- */
#os-root .os-scale {
    margin: 22px 0 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 10px;
}
#os-root .os-scale li {
    display: grid;
    grid-template-columns: 110px 1fr;
    gap: 16px;
    padding: 14px 18px;
    background: #fffcf6;
    border: 1px solid #d9cfbb;
    border-radius: 4px;
    font-size: 0.9rem;
}
#os-root .os-scale li b { font-family: "Noto Serif KR", "Nanum Myeongjo", "Apple SD Gothic Neo", serif; color: #2b2a26; }
#os-root .os-scale li span { color: #5a564d; line-height: 1.7; }
/* ---------- 후기 판별: 두 칸 대조 ---------- */
#os-root .os-weigh {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 22px 0 0;
}
#os-root .os-weigh > div {
    padding: 18px 20px;
    border-radius: 4px;
    background: #fffcf6;
    border: 1px solid #d9cfbb;
}
#os-root .os-weigh > div:first-child { border-top: 3px solid #5f7f6a; }
#os-root .os-weigh > div:last-child { border-top: 3px solid #c2714f; }
#os-root .os-weigh h4 { margin: 0 0 10px; font-family: "Noto Serif KR", "Nanum Myeongjo", "Apple SD Gothic Neo", serif; font-size: 1rem; }
#os-root .os-weigh ul { margin: 0; padding-left: 18px; font-size: 0.88rem; color: #5a564d; }
#os-root .os-weigh li + li { margin-top: 6px; }
/* ---------- 압 강도 눈금 ---------- */
#os-root .os-gauge {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 6px;
    margin: 20px 0 8px;
    padding: 0;
    list-style: none;
}
#os-root .os-gauge li {
    padding: 12px 10px;
    text-align: center;
    border-radius: 4px;
    background: #fffcf6;
    border: 1px solid #d9cfbb;
    font-size: 0.8rem;
    line-height: 1.5;
    color: #5a564d;
}
#os-root .os-gauge li b { display: block; font-family: "Noto Serif KR", "Nanum Myeongjo", "Apple SD Gothic Neo", serif; font-size: 1rem; color: #2b2a26; }
#os-root .os-gauge li:nth-child(3) { border-color: #3f6350; background: #dfe8e0; }
/* ---------- 오해 대조표 ---------- */
#os-root .os-scroll { overflow-x: auto; margin: 22px 0 0; }
#os-root .os-truth { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
#os-root .os-truth th, #os-root .os-truth td {
    padding: 12px 14px;
    border-bottom: 1px solid #d9cfbb;
    text-align: left;
    vertical-align: top;
}
#os-root .os-truth th { background: #ede5d6; font-size: 0.76rem; letter-spacing: 0.08em; color: #8a8477; }
#os-root .os-truth td:first-child { width: 36%; color: #a35a3b; font-weight: 600; }
/* ---------- 경고 카드 ---------- */
#os-root .os-warn {
    margin: 22px 0 0;
    padding: 0;
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
#os-root .os-warn li {
    padding: 14px 16px;
    background: #fffcf6;
    border: 1px solid #d9cfbb;
    border-top: 3px solid #c2714f;
    border-radius: 4px;
    font-size: 0.88rem;
}
#os-root .os-warn b { display: block; margin-bottom: 4px; color: #2b2a26; }
#os-root .os-warn span { color: #5a564d; line-height: 1.65; }
/* ---------- 인용 띠 ---------- */
#os-root .os-quote {
    margin: 24px 0 0;
    padding: 16px 22px;
    border-left: 4px solid #b89a4a;
    background: rgba(184, 154, 74, 0.1);
    font-family: "Noto Serif KR", "Nanum Myeongjo", "Apple SD Gothic Neo", serif;
    font-size: 1.02rem;
    color: #2b2a26;
}
#os-root .os-quote p { margin: 0; }
/* ---------- 문답 ---------- */
#os-root .os-faq { margin: 18px 0 0; }
#os-root .os-faq details { border-bottom: 1px solid #d9cfbb; }
#os-root .os-faq summary {
    cursor: pointer;
    list-style: none;
    display: grid;
    grid-template-columns: 28px 1fr;
    gap: 10px;
    padding: 14px 0;
    font-weight: 600;
    color: #2b2a26;
}
#os-root .os-faq summary::-webkit-details-marker { display: none; }
#os-root .os-faq summary::before { content: "Q"; font-family: "Noto Serif KR", "Nanum Myeongjo", "Apple SD Gothic Neo", serif; color: #a35a3b; }
#os-root .os-faq details p {
    margin: 0;
    padding: 0 0 16px 38px;
    font-size: 0.92rem;
    line-height: 1.75;
    color: #5a564d;
}
/* ---------- 바닥: 세 칸 ---------- */
#os-root .os-ground {
    background: #2b2a26;
    color: #e3d8c3;
    padding: 44px 0 130px;
}
#os-root .os-ground-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 36px;
    padding-bottom: 26px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
#os-root .os-ground h4 {
    margin: 0 0 10px;
    font-family: "Noto Serif KR", "Nanum Myeongjo", "Apple SD Gothic Neo", serif;
    font-size: 0.98rem;
    color: #fff;
}
#os-root .os-ground p { margin: 0 0 8px; font-size: 0.84rem; line-height: 1.75; color: #e3d8c3; }
#os-root .os-ground ul { margin: 0; padding: 0; list-style: none; font-size: 0.84rem; }
#os-root .os-ground li + li { margin-top: 5px; }
#os-root .os-ground a { color: #ede5d6; text-decoration: none; }
#os-root .os-ground a:hover { color: #fff; text-decoration: underline; }
#os-root .os-ground-legal {
    padding-top: 18px;
    font-size: 0.78rem;
    line-height: 1.75;
    color: #8a8477;
}
#os-root .os-ground-legal p { margin: 0 0 4px; color: #8a8477; }
/* ---------- 플로팅 배너 (위치·구조 유지, 문구·색만 변경) ---------- */
#os-root .bd-dock {
    position: fixed;
    right: 26px;
    bottom: 26px;
    z-index: 90;
    animation: bd-bob 4.2s ease-in-out infinite;
    pointer-events: none;
}
#os-root .bd-dock > * { pointer-events: auto; }
#os-root .bd-dock-glow {
    position: absolute;
    inset: 0;
    border-radius: 999px;
    pointer-events: none;
}
#os-root .bd-dock-glow::before,
#os-root .bd-dock-glow::after {
    content: "";
    position: absolute;
    border-radius: 999px;
    background: linear-gradient(115deg, #5f7f6a 0%, #c2714f 55%, #b89a4a 100%);
    will-change: opacity, transform;
}
#os-root .bd-dock-glow::before {
    inset: -3px;
    filter: blur(9px);
    opacity: 0.85;
    animation: bd-glow-rim 3.4s ease-in-out infinite;
}
#os-root .bd-dock-glow::after {
    inset: -13px;
    filter: blur(26px);
    opacity: 0.45;
    animation: bd-glow-halo 3.4s ease-in-out infinite;
}
#os-root .bd-dock-btn {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 13px;
    min-width: 310px;
    padding: 15px 22px;
    background: linear-gradient(135deg, #3f6350, #2b2a26);
    border: 1px solid rgba(244, 239, 230, 0.45);
    border-radius: 999px;
    box-shadow: 0 18px 42px rgba(43, 42, 38, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.08);
    color: #fff;
    text-decoration: none;
    transition: transform 0.2s ease, border-color 0.2s ease;
}
#os-root .bd-dock-btn:hover {
    text-decoration: none;
    transform: scale(1.03);
    border-color: #e8c9b6;
}
#os-root .bd-dock-dot {
    flex: none;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: #e8c9b6;
    box-shadow: 0 0 0 0 rgba(232, 201, 182, 0.7);
    animation: bd-dock-ping 2.1s ease-out infinite;
}
#os-root .bd-dock-txt {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    gap: 1px;
    line-height: 1.35;
    white-space: nowrap;
}
#os-root .bd-dock-txt b {
    font-family: "Noto Serif KR", "Nanum Myeongjo", "Apple SD Gothic Neo", serif;
    font-size: 1.02rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: #fff;
}
#os-root .bd-dock-txt em {
    font-style: normal;
    font-size: 0.73rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: #e8c9b6;
}
#os-root .bd-dock-ico {
    flex: none;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    color: #2b2a26;
    background: linear-gradient(135deg, #e8c9b6, #f4efe6);
    animation: bd-dock-slide 1.9s ease-in-out infinite;
}
@keyframes bd-bob {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-11px); }
}
@keyframes bd-glow-rim {
    0%, 100% { opacity: 0.6; }
    50%      { opacity: 1; }
}
@keyframes bd-glow-halo {
    0%, 100% { opacity: 0.3; transform: scale(0.985); }
    50%      { opacity: 0.62; transform: scale(1.02); }
}
@keyframes bd-dock-ping {
    0%   { box-shadow: 0 0 0 0 rgba(232, 201, 182, 0.65); }
    70%  { box-shadow: 0 0 0 11px rgba(232, 201, 182, 0); }
    100% { box-shadow: 0 0 0 0 rgba(232, 201, 182, 0); }
}
@keyframes bd-dock-slide {
    0%, 100% { transform: translateX(0); }
    50%      { transform: translateX(4px); }
}
/* ---------- 반응형 ---------- */
@media (max-width: 1000px) {
    #os-root .os-body { grid-template-columns: 1fr; gap: 0; }
    #os-root .os-rail { display: none; }
    #os-root .os-strip {
        display: flex;
        gap: 8px;
        overflow-x: auto;
        padding: 4px 0 12px;
        margin: 0 0 12px;
        list-style: none;
        scrollbar-width: thin;
    }
    #os-root .os-strip li { flex: none; }
    #os-root .os-strip a {
        display: inline-block;
        padding: 6px 12px;
        border: 1px solid #c4b797;
        border-radius: 999px;
        background: #fffcf6;
        font-size: 0.8rem;
        color: #5a564d;
        text-decoration: none;
        white-space: nowrap;
    }
    #os-root .os-hero-grid { grid-template-columns: 1fr; gap: 24px; }
    #os-root .os-steps { grid-template-columns: repeat(2, 1fr); }
    #os-root .os-twin { grid-template-columns: 1fr; gap: 18px; }
    #os-root .os-ground-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
    #os-root .os-frame { padding-inline: 18px; }
    #os-root .os-topline { display: none; }
    #os-root .os-quick { display: none; }
    #os-root .os-hero { padding: 22px 0 20px; }
    #os-root .os-cta-btn { width: 100%; gap: 12px; padding: 13px 16px 13px 14px; }
    #os-root .os-cta-ico { width: 40px; height: 40px; }
    #os-root .os-cta-txt b { font-size: 1.06rem; }
    #os-root .os-cta-txt em { font-size: 0.68rem; white-space: normal; }
    #os-root .os-sec { padding: 32px 0 36px; }
    #os-root .os-sec--card { padding: 24px 18px 28px; }
    #os-root .os-sec--tint { padding-inline: 18px; }
    #os-root .os-sec-head { flex-direction: column; gap: 8px; }
    #os-root .os-steps { grid-template-columns: 1fr; }
    #os-root .os-lexicon { grid-template-columns: 1fr; }
    #os-root .os-glossary > div { grid-template-columns: 1fr; gap: 2px; }
    #os-root .os-tick { columns: 1; }
    #os-root .os-clock { grid-template-columns: 1fr; }
    #os-root .os-clock li + li { border-left: 0; border-top: 1px solid #d9cfbb; }
    #os-root .os-scale li { grid-template-columns: 1fr; gap: 4px; }
    #os-root .os-weigh { grid-template-columns: 1fr; }
    #os-root .os-gauge { gap: 4px; }
    #os-root .os-gauge li { padding: 8px 4px; font-size: 0.68rem; }
    #os-root .os-warn { grid-template-columns: 1fr; }
    #os-root .os-ground { padding: 34px 0 130px; }
    #os-root .os-ground-grid { grid-template-columns: 1fr; gap: 22px; }
    #os-root .bd-dock {
        right: 14px;
        left: auto;
        bottom: 14px;
    }
    #os-root .bd-dock-btn {
        min-width: 0;
        width: auto;
        padding: 11px 13px 11px 16px;
        gap: 9px;
    }
    #os-root .bd-dock-txt b { font-size: 0.87rem; }
    #os-root .bd-dock-txt em { font-size: 0.66rem; }
    #os-root .bd-dock-ico { width: 28px; height: 28px; }
    #os-root .bd-dock-glow::before { inset: -2px; filter: blur(7px); }
    #os-root .bd-dock-glow::after { inset: -10px; filter: blur(20px); }
}
@media (prefers-reduced-motion: reduce) {
    #os-root * { animation-duration: 0.01ms; transition-duration: 0.01ms; }
}
@media print {
    #os-root { background: #fff; color: #000; }
    #os-root .os-masthead, #os-root .os-topline, #os-root .os-cta, #os-root .bd-dock { display: none; }
}
/* ==========================================================================
   이미지 자리(플레이스홀더) — 원본 규칙 그대로 (스코프 id만 변경)
   ========================================================================== */
/* ==========================================================================
   이미지 자리(플레이스홀더)
   ※ max-width / aspect-ratio / min-height / 여백 수치는 원본 그대로.
   ========================================================================== */
#os-root .bm-ph {
    width: 100%;
    max-width: 930px;
    margin: 6px auto 42px;
    padding: 0;
}
#os-root .os-prose + .bm-ph { margin-top: 40px; }
#os-root .bm-ph-hero { margin: 0 0 8px; }
#os-root .bm-ph--wide { max-width: 930px; }
#os-root .bm-ph--md   { max-width: 640px; }
#os-root .bm-ph--sq   { max-width: 560px; }
#os-root .bm-ph-box {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 15px;
    aspect-ratio: 930 / 620;
    padding: 28px 26px;
    background-color: #2b1d21;
    background-image: repeating-linear-gradient(135deg,
        rgba(176, 138, 60, 0.08) 0 12px,
        rgba(255, 255, 255, 0) 12px 26px);
    border: 2px dashed #7a5560;
    border-radius: 8px;
}
#os-root .bm-ph--wide .bm-ph-box { aspect-ratio: 930 / 360; }
#os-root .bm-ph--md   .bm-ph-box { aspect-ratio: 640 / 420; }
#os-root .bm-ph--sq   .bm-ph-box { aspect-ratio: 1 / 1; }
#os-root .bm-ph-mark {
    display: flex;
    flex: none;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    color: #e8d59b;
    background: rgba(122, 46, 59, 0.35);
    border: 1px solid rgba(232, 213, 155, 0.4);
    border-radius: 8px;
}
#os-root .bm-ph-file {
    margin: 0;
    font-size: 0.9rem;
    font-weight: 800;
    color: #f8f3eb;
}
#os-root .bm-ph-file em {
    display: inline-block;
    margin-left: 9px;
    padding: 2px 9px;
    font-style: normal;
    font-size: 0.73rem;
    font-weight: 800;
    line-height: 1.7;
    color: #23201c;
    background: #e8d59b;
    border-radius: 999px;
    vertical-align: 1px;
}
#os-root .bm-ph-spec {
    display: grid;
    gap: 9px;
    max-width: 74ch;
    margin: 0;
    padding: 0;
}
#os-root .bm-ph-spec > div {
    display: grid;
    grid-template-columns: 42px 1fr;
    gap: 10px;
}
#os-root .bm-ph-spec dt {
    margin: 0;
    padding-top: 0.2em;
    font-size: 0.75rem;
    font-weight: 800;
    color: #e8d59b;
}
#os-root .bm-ph-spec dd {
    margin: 0;
    font-size: 0.9rem;
    line-height: 1.7;
    color: #d6dcd3;
}
#os-root .bm-ph-spec .bm-ph-copy {
    font-weight: 700;
    color: #f8f3eb;
}
#os-root .bm-ph figcaption {
    margin-top: 11px;
    font-size: 0.78rem;
    color: #8a8477;
    text-align: center;
}
#os-root .bm-ph > img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
}
@media (max-width: 640px) {
    #os-root .bm-ph { margin-bottom: 34px; }
    #os-root .os-prose + .bm-ph { margin-top: 32px; }
    #os-root .bm-ph-box,
    #os-root .bm-ph--wide .bm-ph-box,
    #os-root .bm-ph--md .bm-ph-box,
    #os-root .bm-ph--sq .bm-ph-box {
        aspect-ratio: auto;
        min-height: 300px;
        padding: 20px 16px;
        gap: 12px;
        border-radius: 14px;
    }
    #os-root .bm-ph-mark { width: 38px; height: 38px; }
    #os-root .bm-ph-file { font-size: 0.85rem; }
    #os-root .bm-ph-spec dd { font-size: 0.86rem; }
}