.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* Hero v0.7: 제목 전폭 → 영상(주) + 설명·버튼(보조) */
.hero{grid-template-columns:minmax(0,1.75fr) minmax(0,1fr);grid-template-areas:"head head" "media body";column-gap:56px;row-gap:30px;align-items:start;min-height:0;padding-block:44px 72px}
.hero-head{grid-area:head;min-width:0}
.hero-body{grid-area:body;min-width:0;align-self:start;padding-top:40px}
.hero .motion-visual{grid-area:media;min-width:0}
.hero .eyebrow{font-size:16px;letter-spacing:.06em;margin-bottom:22px}
.hero h1 .nw{white-space:nowrap}
.hero h1{font-size:clamp(44px,4.6vw,70px);line-height:1.12;letter-spacing:-.055em}
.hero h1 .accent-word:after{bottom:-10px;height:5px}
.hero-lead{font-size:21px;margin-top:0;line-height:1.6}
.hero-actions{margin-top:30px}
.hero-caption{font-size:13px;margin-top:40px}

/* 영상 */
.motion-visual{padding-block:0;align-self:start}
.motion-visual .asset-top{margin-bottom:16px;font-size:17px}
.motion-visual .asset-index{font-size:14px}
.motion-stage{background:#20211f;position:relative;box-shadow:0 22px 44px -30px #1a1a1960}
.motion-heading{position:absolute;z-index:1;top:18px;left:18px;display:inline-flex;align-items:center;gap:10px;padding:9px 14px;background:rgba(26,26,25,.62);color:#ecebe7;pointer-events:none;backdrop-filter:blur(4px)}
.motion-heading strong{font-size:16px;font-weight:600;letter-spacing:-.02em}
.motion-signal{width:7px;height:7px;background:#f05523;border-radius:50%;flex:none}
#asset-film{display:block;width:100%;height:auto;aspect-ratio:16/9;background:#20211f}
.motion-controls{display:flex;align-items:center;gap:18px;padding:10px 20px;border-top:1px solid #44453e;color:#ecebe7;background:#252720}
.motion-controls button{padding:8px 0;border:0;background:none;color:inherit;font-size:15px;min-height:44px;white-space:nowrap}
.motion-controls button:hover{color:#ffb28d}.motion-controls :focus-visible{outline:2px solid #ecebe7;outline-offset:4px}
.motion-timeline{flex:1;display:flex;align-items:center;min-width:0}
.motion-timeline input{width:100%;height:30px;accent-color:#f05523;cursor:pointer;margin:0}
.motion-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-top:18px}
.motion-step{font-size:15px;line-height:1.4;color:#6a6b63;border-top:2px solid #cecdc7;padding-top:10px;transition:color .3s,border-color .3s}
.motion-step.current{color:#1a1a19;border-color:#f05523;font-weight:600}
.motion-visual figcaption{font-size:14px;margin-top:14px}

/* RAM 서비스 체계명 고지 */
.ram-note{margin-top:18px;font-size:15px;color:var(--gray)}

/* 모바일 하단 고정 버튼: 첫 화면 노출 중 숨김 */
.mobile-cta{transition:transform .25s ease,opacity .25s ease}
.mobile-cta.is-hidden{transform:translateY(110%);opacity:0;pointer-events:none}

/* 1100px 이하: 한 단 — 제목 → 영상 → 설명·버튼 */
@media(max-width:1100px){
  .hero{grid-template-columns:minmax(0,1fr);grid-template-areas:"head" "body" "media";row-gap:32px;padding-block:48px 64px}
  .hero-body{padding-top:0}
  .hero h1{font-size:clamp(40px,6.4vw,64px)}
  .hero-lead{font-size:20px}
  .hero-actions{flex-direction:row;align-items:center}
  .hero-caption{font-size:13px}
}
@media(max-width:600px){
  .hero{row-gap:28px;padding-block:36px 44px}
  .hero .eyebrow{font-size:13px;letter-spacing:.04em;margin-bottom:18px}
  .hero h1{font-size:clamp(32px,9.4vw,44px);line-height:1.18}
  .hero h1 .accent-word:after{bottom:-6px;height:4px}
  .hero-lead{font-size:18px}
  .hero-actions{gap:18px;margin-top:24px}
  .hero-caption{font-size:12px;margin-top:28px}
  .motion-visual .asset-top{font-size:15px;margin-bottom:12px}
  .motion-visual .asset-index{font-size:12px}
  .motion-heading{top:10px;left:10px;padding:6px 10px;gap:8px}
  .motion-heading strong{font-size:14px}
  .motion-controls{padding:6px 14px;gap:12px}
  .motion-controls button{font-size:14px}
  .motion-steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 10px;margin-top:14px}
  .motion-step{font-size:14px}
  .motion-visual figcaption{font-size:13px}
}
@media(prefers-reduced-motion:reduce){.motion-step,.mobile-cta{transition:none}}

/* 하단 법인·고지 문구 가독성 */
.footer-bottom{font-size:13px;line-height:1.6}
@media(max-width:600px){.footer-bottom{font-size:13px}}