/* DRTView 소개 페이지 — DRT T·Q 와 같은 바탕(밝은 바탕, 큰 화면, 절마다 한 가지). 네 언어 공용. 전용 이름(dtv-), 구역 공통 규칙은 drt-q.css 와 같다.
   DRTView 전용: 커버 띠(비행 화면·마지막 부름), 범용 지상관제 비교 표, 사진 카드 셋, 어두운 언어 절(점 지구본 site-motion.js), 업데이트 띠(du-, 옛 규칙 그대로).
   업데이트 소식 페이지(/drtview/updates/)는 옛 ko-drtview.css 를 계속 쓴다. */
.dtv {
  --dtv-bg: #f5f6f8;
  --dtv-white: #ffffff;
  --dtv-ink: #1a1a1a;
  --dtv-ink-2: #4d4d4d;
  --dtv-ink-3: #8a8a8a;
  --dtv-line: #e3e5e9;
  --dtv-stage: #0a0d13;       /* 어두운 무대 */
  --dtv-frame: #dfe1e6;       /* 사진 틀 바탕 */
  --dtv-good: #4caf50;        /* 수신기 화면과 같은 상태 색 */
  --dtv-bad: #ef5350;
  --dtv-accent: #0ea5e9;
  --dtv-radius: 20px;
  --dtv-max: 1200px;
  --dtv-wide: 1360px;
  --dtv-gutter: 24px;
  color: var(--dtv-ink);
  background: var(--dtv-white);
  font-size: 17px;
  line-height: 1.65;
  word-break: keep-all;
  overflow-wrap: anywhere;
}
.dtv * { box-sizing: border-box; }
.dtv :where(img) { display: block; max-width: 100%; height: auto; }
.dtv :where(h1, h2, h3) { margin: 0; letter-spacing: -0.02em; line-height: 1.2; font-weight: 600; }
.dtv :where(p) { margin: 0; }
.dtv :where(ul, ol, dl, dd, figure) { margin: 0; padding: 0; list-style: none; }
.dtv > svg[hidden] { display: none; }   /* 아이콘 모음: 사이트 공용 규칙이 svg 를 inline 으로 돌려놓는다 */

.dtv-wrap { width: 100%; max-width: var(--dtv-max); margin: 0 auto; padding: 0 var(--dtv-gutter); }
.dtv-wrap.is-wide { max-width: var(--dtv-wide); }
.dtv-center { text-align: center; }
.dtv-measure { max-width: 880px; margin-left: auto; margin-right: auto; }

/* 구역 공통 */
.dtv-section { padding: 112px 0; }
.dtv-section.is-gray { background: var(--dtv-bg); }
.dtv-kicker { display: block; margin-bottom: 14px; font-size: 15px; font-weight: 600; letter-spacing: 0.02em; color: var(--dtv-ink-3); }
.dtv-h2 { font-size: 44px; }
.dtv-lead { margin-top: 18px; font-size: 18px; color: var(--dtv-ink-2); }
.dtv-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.dtv-cap { margin-top: 10px; font-size: 14px; color: var(--dtv-ink-3); }
/* 짧은 문장 두세 개로 된 글은 문장마다 줄을 바꾼다(끝 낱말 하나만 다음 줄로 떨어지지 않게) */
.dtv-line { display: block; }

/* 사진 틀 */
.dtv-frame { overflow: hidden; border-radius: var(--dtv-radius); background: var(--dtv-frame); }
.dtv-frame img { width: 100%; height: 100%; object-fit: cover; }
/* 고글 화면(수신기가 그린 OSD 렌더): 영상처럼 보이도록 어두운 틀 */
.dtv-screen { overflow: hidden; border-radius: 14px; background: #101418; border: 1px solid var(--dtv-line); box-shadow: 0 24px 60px rgba(17,24,39,.12); }
.dtv-screen img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }

/* 등장 효과: 스크립트가 있을 때만 숨겼다가 보이면 올라온다(site.js 가 dtv-active 를 붙인다) */
html.js .dtv-reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
html.js .dtv-reveal.dtv-active { opacity: 1; transform: none; }
html.js .dtv-reveal.is-late { transition-delay: .15s; }
@media (prefers-reduced-motion: reduce) { html.js .dtv-reveal { opacity: 1; transform: none; transition: none; } }


/* ---------- 아이콘·차례 등장 ---------- */
.dtv-ic { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.dtv-compare h3 { display: flex; align-items: center; gap: 10px; }
.dtv-compare h3 .dtv-ic { color: rgba(255,255,255,.6); width: 22px; height: 22px; }
.dtv-stage-points .dtv-ic, .dtv-trio .dtv-ic, .dtv-cover-points .dtv-ic, .dtv-node > .dtv-ic { display: block; margin-bottom: 12px; width: 26px; height: 26px; color: var(--dtv-accent); }
.dtv-stage-points .dtv-ic, .dtv-cover-points .dtv-ic { color: rgba(255,255,255,.85); }
.dtv-node > .dtv-ic { margin-bottom: 10px; }
/* 묶음 안의 항목은 차례로 등장한다(첫째부터 90ms 간격) */
html.js .dtv-stagger > .dtv-reveal:nth-child(2) { transition-delay: .09s; }
html.js .dtv-stagger > .dtv-reveal:nth-child(3) { transition-delay: .18s; }
html.js .dtv-stagger > .dtv-reveal:nth-child(4) { transition-delay: .27s; }
html.js .dtv-stagger > .dtv-reveal:nth-child(5) { transition-delay: .36s; }
html.js .dtv-stagger > .dtv-reveal:nth-child(6) { transition-delay: .45s; }

/* ---------- 1. 첫 화면: 가운데 제목, 숲을 나는 사진이 주인공(스크롤에 따라 가라앉는 움직임은 site-motion.js) ---------- */
.dtv-hero { padding: 72px 0 0; background: var(--dtv-bg); }
.dtv-logo { height: 30px; width: auto; margin: 0 auto 22px; }
.dtv-hero-title { font-size: 60px; line-height: 1.12; letter-spacing: -0.03em; font-weight: 700; }
.dtv-hero-sub { margin: 22px auto 0; max-width: 800px; font-size: 26px; line-height: 1.35; font-weight: 500; color: var(--dtv-ink); }
.dtv-hero-note { margin: 14px auto 0; max-width: 880px; font-size: 17px; color: var(--dtv-ink-2); }
.dtv-hero .dtv-actions { margin-top: 32px; }
.dtv-hero-photo { margin: 56px auto 0; max-width: 1100px; }
.dtv-hero-photo img { aspect-ratio: 16 / 10; }

/* ---------- 2. 숫자 한 줄 ---------- */
.dtv-numbers { padding: 40px 0; background: var(--dtv-bg); }
.dtv-numbers ul { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--dtv-line); border-bottom: 1px solid var(--dtv-line); }
.dtv-numbers li { padding: 26px 24px; text-align: center; border-left: 1px solid var(--dtv-line); }
.dtv-numbers li:first-child { border-left: 0; }
.dtv-numbers strong { display: block; font-size: 30px; font-weight: 600; letter-spacing: -0.02em; line-height: 1.1; font-variant-numeric: tabular-nums; }
.dtv-numbers strong small { font-size: 22px; font-weight: 500; margin-left: 2px; }
.dtv-numbers [data-count] { display: inline; font: inherit; color: inherit; letter-spacing: inherit; line-height: inherit; }   /* 회사소개 숫자 규칙(display:block·글자 크기)을 되돌린다 */
.dtv-numbers span { display: block; margin-top: 8px; font-size: 15px; color: var(--dtv-ink-3); }

/* ---------- 3. 소개와 여섯 가지 특징: 아이콘 + 제목 + 한 줄. 누르면 그 기능의 절로 간다 ---------- */
.dtv-feats { margin-top: 64px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 48px; }
.dtv-feats a { display: block; padding: 28px 0 32px; border-top: 1px solid var(--dtv-line); color: inherit; text-decoration: none; }
.dtv-feats .dtv-ic { display: block; width: 28px; height: 28px; color: var(--dtv-accent); }
.dtv-feats h3 { margin-top: 16px; font-size: 21px; }
.dtv-feats p { margin-top: 8px; font-size: 16px; color: var(--dtv-ink-2); }
.dtv-feats a:hover h3 { color: var(--dtv-accent); }

/* ---------- 4. 어두운 무대: 영상 보안. 문제 제기 → 비교 표 → 키 화면 ---------- */
.dtv-stage { padding: 112px 0 104px; background: var(--dtv-stage); color: #fff; }
.dtv-stage .dtv-kicker { color: rgba(255,255,255,.55); }
.dtv-stage .dtv-lead { color: rgba(255,255,255,.72); }
.dtv-stage .dtv-cap { color: rgba(255,255,255,.5); }
/* 비교 표: 왼쪽은 기성 저가 드론, 오른쪽은 DRT Q. 표시(×·✓)가 정보를 담으므로 색을 쓴다 */
.dtv-compare { margin: 64px auto 0; max-width: 1040px; border-top: 1px solid rgba(255,255,255,.18); }
.dtv-compare > div { display: grid; grid-template-columns: 200px 1fr 1fr; gap: 0 32px; padding: 22px 0; border-bottom: 1px solid rgba(255,255,255,.12); align-items: start; }
.dtv-compare .is-head { padding: 14px 0; font-size: 14px; font-weight: 600; letter-spacing: 0.02em; color: rgba(255,255,255,.55); border-bottom-color: rgba(255,255,255,.18); }
.dtv-compare .is-head b { font-weight: 600; }
.dtv-compare .is-head .dtv-us { color: #fff; }
.dtv-compare h3 { font-size: 17px; font-weight: 600; color: rgba(255,255,255,.9); }
.dtv-compare p { position: relative; padding-left: 30px; font-size: 16px; line-height: 1.55; color: rgba(255,255,255,.72); }
.dtv-compare p::before { content: ""; position: absolute; left: 0; top: .2em; width: 18px; height: 18px; border-radius: 50%; background-position: center; background-repeat: no-repeat; background-size: 10px 10px; }
.dtv-compare .dtv-them::before { background-color: rgba(239,83,80,.18); background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 10'%3E%3Cpath d='M2 2l6 6M8 2l-6 6' stroke='%23ef5350' stroke-width='1.8' stroke-linecap='round'/%3E%3C/svg%3E"); }
.dtv-compare .dtv-us::before { background-color: rgba(76,175,80,.18); background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 10'%3E%3Cpath d='M1.8 5.2l2.3 2.3L8.3 2.8' fill='none' stroke='%234caf50' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); }
.dtv-compare .dtv-us { color: #fff; }
/* 키 화면: 표 아래에 수신기 화면 한 장과 글 셋 */
.dtv-stage-shot { margin: 88px auto 0; max-width: 1040px; }
.dtv-stage-shot .dtv-screen { border-color: rgba(255,255,255,.14); box-shadow: 0 30px 80px rgba(0,0,0,.6); }
.dtv-stage-points { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px 48px; max-width: 1040px; margin: 48px auto 0; }
.dtv-stage-points li { padding-top: 20px; border-top: 1px solid rgba(255,255,255,.18); }
.dtv-stage-points h3 { font-size: 20px; }
.dtv-stage-points p { margin-top: 8px; font-size: 16px; color: rgba(255,255,255,.7); }

/* ---------- 5. 글 + 화면 2단 ---------- */
.dtv-split { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 48px 72px; align-items: center; }
.dtv-split .dtv-lead { margin-top: 20px; }
.dtv-split ul { margin-top: 28px; }
.dtv-split li { padding: 14px 0; border-top: 1px solid var(--dtv-line); font-size: 16px; color: var(--dtv-ink-2); }
.dtv-split li:last-child { border-bottom: 1px solid var(--dtv-line); }
.dtv-split li strong { color: var(--dtv-ink); font-weight: 600; margin-right: 8px; }
.dtv-split.is-flip > .dtv-reveal:first-child { order: 2; }
.dtv-split.is-flip > figure { order: 1; }
.dtv-split figure .dtv-cap { margin-top: 10px; }
.dtv-stack { display: grid; gap: 20px; }
.dtv-stack figcaption { margin-top: 10px; font-size: 14px; color: var(--dtv-ink-3); }
.dtv-video { position: relative; aspect-ratio: 16 / 9; overflow: hidden; border-radius: 14px; background: #101418; border: 1px solid var(--dtv-line); }
.dtv-video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* ---------- 6. 커버(비행 화면): 화면을 자르지 않고 전체 폭으로, 글은 그 아래 어두운 띠 ---------- */
.dtv-cover { position: relative; overflow: hidden; background: #0a0d13; color: #fff; }
.dtv-cover > img { width: 100%; height: auto; display: block; }
.dtv-cover-text { padding: 48px 0 64px; }
.dtv-cover-text .dtv-kicker { color: rgba(255,255,255,.7); }
.dtv-cover-text .dtv-h2 { max-width: 720px; }
.dtv-cover-points { margin-top: 24px; display: grid; grid-template-columns: repeat(3, minmax(0, 320px)); gap: 20px 40px; }
.dtv-cover-points h3 { font-size: 18px; }
.dtv-cover-points p { margin-top: 6px; font-size: 15px; color: rgba(255,255,255,.82); }

/* ---------- DRTView 전용 ---------- */
/* 글 묶음(아이콘 + 제목 + 글): 다섯이면 3 + 2 */
.dtv-trio { margin-top: 56px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px 48px; }
.dtv-trio li { padding-top: 20px; border-top: 1px solid var(--dtv-line); }
.dtv-trio h3 { font-size: 21px; }
.dtv-trio p { margin-top: 8px; font-size: 16px; color: var(--dtv-ink-2); }
/* 큰 화면 하나 + 작은 화면 둘 */
.dtv-main { margin: 56px auto 0; max-width: 1100px; }
.dtv-main figcaption, .dtv-grid figcaption { margin-top: 10px; font-size: 14px; color: var(--dtv-ink-3); }
.dtv-main .dtv-screen img { aspect-ratio: 16 / 10; }
.dtv-grid { margin: 24px auto 0; max-width: 1100px; display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.dtv-grid .dtv-screen img { aspect-ratio: 16 / 10; }
.dtv-screen.is-crop img { aspect-ratio: 2 / 1; object-position: top; }
.dtv-section > .dtv-wrap > .dtv-grid:nth-child(2) { margin-top: 56px; }
/* 2단 절의 항목(아이콘 + 제목 + 한 줄) */
.dtv-points { margin-top: 28px; }
.dtv-points li { display: grid; grid-template-columns: 26px 1fr; gap: 0 14px; padding: 13px 0; border-top: 1px solid var(--dtv-line); }
.dtv-points li:last-child { border-bottom: 1px solid var(--dtv-line); }
.dtv-points .dtv-ic { grid-row: span 2; width: 24px; height: 24px; margin-top: 2px; color: var(--dtv-accent); }
.dtv-points h3 { font-size: 17px; }
.dtv-points p { margin-top: 3px; font-size: 15px; color: var(--dtv-ink-2); }
/* 커버 변형: 중앙 부름(마지막) */
.dtv-cover.is-cta > img { height: 560px; object-fit: cover; object-position: 50% 40%; }
.dtv-cover.is-cta .dtv-cover-text { position: absolute; inset: 0; display: flex; align-items: center; padding: 0; background: rgba(0,0,0,.55); }
.dtv-cover.is-cta .dtv-h2 { max-width: none; }
.dtv-cover.is-cta .dtv-actions { margin-top: 28px; }
.dtv-note { margin-top: 18px; font-size: 15px; color: rgba(255,255,255,.75); }
/* 사진 카드 셋(연결·Windows) */
.dtv-cards { margin-top: 56px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px 24px; }
.dtv-card-media { aspect-ratio: 4 / 3; overflow: hidden; border-radius: 14px; border: 1px solid var(--dtv-line); background: #101418; }
.dtv-card-media.is-screen { aspect-ratio: 16 / 10; }
.dtv-card-media img { width: 100%; height: 100%; object-fit: cover; transition: scale 1.2s cubic-bezier(.22,.61,.36,1); }
.dtv-cards article:hover .dtv-card-media img { scale: 1.04; transition-duration: .6s; }
.dtv-card-media.is-split { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; }
.dtv-cards h3 { margin-top: 18px; font-size: 20px; display: flex; align-items: center; gap: 10px; }
.dtv-cards h3 .dtv-ic { width: 22px; height: 22px; color: var(--dtv-accent); }
.dtv-cards p { margin-top: 8px; font-size: 16px; color: var(--dtv-ink-2); }
/* 본문보다 넓은 Windows 화면 */
.dtv-wide { max-width: 1360px; margin: 56px auto 0; padding: 0 var(--dtv-gutter); }
.dtv-wide .dtv-screen img { aspect-ratio: 1920 / 1178; }
#dtv-windows .dtv-cards { margin-top: 24px; }
#dtv-windows .dtv-actions { margin-top: 40px; }
/* 언어: 어두운 무대, 왼쪽 글·깃발, 오른쪽 점 지구본 */
.dtv-lang { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: 48px 72px; align-items: center; }
.dtv-lang-head .dtv-lead { margin-top: 18px; }
.dtv-flags { margin-top: 28px; border-top: 1px solid rgba(255,255,255,.18); }
.dtv-flags li { display: grid; grid-template-columns: 72px 1fr; gap: 20px; align-items: center; padding: 16px 0; border-bottom: 1px solid rgba(255,255,255,.18); }
.dtv-flags img { width: 72px; height: 48px; object-fit: cover; border-radius: 6px; }
.dtv-flags h3 { font-size: 20px; }
.dtv-flags p { margin-top: 3px; font-size: 15px; color: rgba(255,255,255,.7); }
.dv-globe { width: 100%; max-width: 460px; aspect-ratio: 1; margin: 0 auto; }
.dv-globe canvas { display: block; width: 100%; height: 100%; }
html:not(.js) .dv-globe { display: none; }
/* 업데이트 띠(du-): 남색 바탕, 옛 규칙 그대로 */
#dv26 .dv-sec.dv-sec--navy { padding: 112px 0; background: linear-gradient(180deg, #16213A 0%, #0F1727 100%); color: #fff; --ink: #EDF1F6; --dim: #93A0B0; --dim-strong: #C4CDD8; --accent: #2E9BFF; --line: rgba(255,255,255,0.11); --card-strong: rgba(255,255,255,0.08); }
#dv26 .dv-sec--navy .dtv-kicker { color: rgba(255,255,255,.55); }
#dv26 .dv-sec--navy .dtv-lead { color: rgba(255,255,255,.72); }
#dv26 .dv-sec--navy .dv-actions { display: flex; justify-content: center; margin-top: 40px; }
#dv26 .dv-sec--navy .dv-btn { display: inline-flex; align-items: center; height: 44px; padding: 0 24px; border-radius: var(--r-ctl); border: 1px solid rgba(255,255,255,.5); color: #fff; font-size: 15px; font-weight: 600; text-decoration: none; }
#dv26 .dv-sec--navy .dv-btn:hover { background: #fff; color: var(--dtv-ink); border-color: #fff; }
#dv26.dv-motion .rv { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
#dv26.dv-motion .rv-d1 { transition-delay: .1s; }
#dv26.dv-motion .rv.is-in { opacity: 1; transform: none; }
.du-stats { margin-top: 56px; display: grid; grid-template-columns: 1fr 1fr 2fr; gap: 18px; margin-bottom: 40px; }
.du-stats > div { padding: 24px 26px 22px; border-radius: 14px; background: var(--card-strong); border: 1px solid var(--line); display: flex; flex-direction: column; justify-content: center; }
.du-leg { white-space: nowrap; display: inline-block; margin-right: 14px; }
.du-stats b { display: block; font-size: clamp(34px, 3.2vw, 46px); font-weight: 600; color: #fff; line-height: 1.15; margin-bottom: 10px; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.du-stats b small { font-size: .55em; font-weight: 600; margin-left: 2px; }
.du-stats > div > span { display: block; color: var(--dim-strong); font-size: 15px; line-height: 1.55; }
#dv26 .du-key { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-right: 6px; vertical-align: 1px; }
.du-key--android, .du-dot--android { background: var(--accent); }
.du-key--desktop, .du-dot--desktop { background: #EDF1F6; }
.du-stats > .du-year, .du-year { position: relative; display: grid; grid-template-columns: repeat(12, 1fr); gap: 4px; align-items: end; }
.du-year::before { content: ""; position: absolute; left: 0; right: 0; bottom: 26px; height: 1px; background: rgba(255,255,255,.22); transform-origin: left; }
.du-year > div { display: flex; flex-direction: column; align-items: center; justify-content: flex-end; }
.du-year .du-dots { display: flex; flex-direction: column-reverse; gap: 3px; padding-bottom: 10px; min-height: 24px; }
.du-dot { display: block; width: 9px; height: 9px; border-radius: 50%; }
.du-year > div > span:last-child { display: flex; align-items: center; height: 26px; color: var(--dim); font-size: 12px; letter-spacing: .04em; white-space: nowrap; }
#dv26.dv-motion .du-year::before { transform: scaleX(0); transition: transform 1s cubic-bezier(.22,.61,.36,1); }
#dv26.dv-motion .du-year.is-in::before { transform: none; }
#dv26.dv-motion .du-dot { transform: scale(0); transition: transform .35s cubic-bezier(.34,1.56,.64,1); transition-delay: calc(.15s + var(--m, 0) * 70ms + var(--d, 0) * 45ms); }
#dv26.dv-motion .du-year.is-in .du-dot { transform: none; }
.du-recent { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.du-recent > div { padding: 22px 24px 24px; border-radius: 14px; background: var(--card-strong); border: 1px solid var(--line); display: flex; flex-direction: column; }
.du-recent time { display: block; font-size: 22px; font-weight: 600; color: #fff; line-height: 1.3; margin-bottom: 8px; }
.du-ver { display: flex; flex-wrap: wrap; gap: 6px 18px; color: var(--accent); font-weight: 600; font-size: 13px; letter-spacing: .04em; line-height: 1.5; margin-bottom: 14px; font-variant-numeric: tabular-nums; }
.du-recent p { color: #fff; font-size: 16px; line-height: 1.7; }
.du-sum + .du-items { margin-top: 12px; }
.du-items li { position: relative; padding-left: 20px; color: var(--dim-strong); font-size: 15px; line-height: 1.7; }
.du-items li + li { margin-top: 6px; }
.du-items li::before { content: "—"; position: absolute; left: 0; color: var(--accent); font-weight: 600; }
.du-more { display: inline-block; margin-top: auto; padding-top: 14px; color: var(--dim); font-size: 14px; line-height: 1.5; text-decoration: none; }
.du-more:hover { color: #fff; }

/* ---------- 화면 폭 ---------- */
@media (max-width: 1024px) {
  .dtv-section { padding: 88px 0; }
  .dtv-h2 { font-size: 36px; }
  .dtv-hero-title { font-size: 46px; }
  .dtv-hero-sub { font-size: 22px; }
  .dtv-feats { grid-template-columns: repeat(2, 1fr); gap: 0 40px; }
  .dtv-compare > div { grid-template-columns: 150px 1fr 1fr; gap: 0 20px; }
  .dtv-cards { grid-template-columns: 1fr 1fr; }
  .dtv-trio { grid-template-columns: 1fr 1fr; }
  .dtv-lang { grid-template-columns: 1fr; }
  .dv-globe { max-width: 360px; }
  .du-stats { grid-template-columns: 1fr 1fr; gap: 12px; }
  .du-stats > .du-year { grid-column: 1 / -1; }
  .dtv-flow { grid-template-columns: 1fr; gap: 0; max-width: 620px; }
  .dtv-link { width: 2px; height: 72px; margin: 0 auto; background: repeating-linear-gradient(180deg, var(--dtv-accent) 0 10px, transparent 10px 18px); background-size: 2px 18px; }
  @keyframes dtv-dash { to { background-position: 0 18px; } }
  .dtv-specs { grid-template-columns: 1fr; gap: 40px; }
  .dtv-specs-photo { position: static; max-width: 560px; }
  .dtv-cover-points { grid-template-columns: repeat(2, minmax(0, 300px)); }
}
@media (max-width: 768px) {
  .dtv { --dtv-gutter: 16px; --dtv-radius: 14px; font-size: 16px; }
  .dtv-section { padding: 64px 0; }
  .dtv-h2 { font-size: 30px; }
  .dtv-lead { font-size: 17px; margin-top: 14px; }
  .dtv-kicker { font-size: 14px; margin-bottom: 10px; }
  .dtv-hero { padding-top: 48px; }
  .dtv-hero-sub { font-size: 20px; margin-top: 16px; }
  .dtv-hero-note { font-size: 16px; }
  .dtv-hero .dtv-actions { margin-top: 24px; }
  .dtv-hero-photo { margin-top: 36px; aspect-ratio: 4 / 3; }
  .dtv-numbers { padding: 28px 0; }
  .dtv-numbers ul { grid-template-columns: 1fr 1fr; border-bottom: 0; }
  .dtv-numbers li { padding: 20px 8px; border-left: 0; border-bottom: 1px solid var(--dtv-line); }
  .dtv-numbers li:nth-child(odd) { border-right: 1px solid var(--dtv-line); }
  .dtv-numbers strong { font-size: 30px; }
  .dtv-numbers strong small { font-size: 18px; }
  .dtv-numbers span { font-size: 14px; }
  .dtv-feats { margin-top: 36px; grid-template-columns: 1fr; gap: 0; }
  .dtv-feats a { padding: 20px 0 22px; }
  .dtv-feats h3 { font-size: 20px; }
  .dtv-ic { width: 22px; height: 22px; }
  .dtv-stage { padding: 64px 0 56px; }
  /* 폰: 비교 표는 항목마다 한 묶음(제목, 기성, DRT Q 순) */
  .dtv-compare { margin-top: 40px; }
  .dtv-compare > div { grid-template-columns: 1fr; gap: 10px; padding: 18px 0; }
  .dtv-compare .is-head { display: none; }
  .dtv-compare p::before { top: .15em; }
  .dtv-compare .dtv-them::after { content: attr(data-side); display: block; margin-top: 2px; font-size: 12px; font-weight: 600; color: rgba(255,255,255,.45); }
  .dtv-compare .dtv-us::after { content: attr(data-side); display: block; margin-top: 2px; font-size: 12px; font-weight: 600; color: rgba(255,255,255,.6); }
  .dtv-stage-shot { margin-top: 48px; }
  .dtv-stage-points { grid-template-columns: 1fr; gap: 20px; margin-top: 32px; }
  .dtv-flow { margin-top: 40px; }
  .dtv-node { padding: 22px 20px 20px; }
  .dtv-link { height: 56px; }
  .dtv-osd-main { margin-top: 32px; }
  .dtv-osd-duo { margin-top: 32px; grid-template-columns: 1fr; gap: 20px; }
  .dtv-osd-grid, .dtv-osd-grid.is-three { grid-template-columns: 1fr; gap: 20px; margin-top: 20px; }
  .dtv-trio { margin-top: 40px; grid-template-columns: 1fr; gap: 20px; }
  .dtv-split { grid-template-columns: 1fr; gap: 32px; }
  .dtv-split .dtv-video, .dtv-split > figure, .dtv-split > .dtv-stack { order: -1; }
  .dtv-hero-title { font-size: 34px; }
  .dtv-numbers strong { font-size: 22px; }
  .dtv-main { margin-top: 32px; }
  .dtv-grid { grid-template-columns: 1fr; gap: 20px; }
  .dtv-cards { margin-top: 32px; grid-template-columns: 1fr; gap: 28px; }
  .dtv-wide { margin-top: 32px; }
  .dtv-flags li { grid-template-columns: 56px 1fr; gap: 14px; }
  .dtv-flags img { width: 56px; height: 38px; }
  .dv-globe { max-width: 280px; }
  .dtv-cover.is-cta > img { height: 360px; }
  #dv26 .dv-sec.dv-sec--navy { padding: 64px 0; }
  .du-stats { margin-top: 32px; grid-template-columns: 1fr; }
  .du-stats > div { padding: 18px 18px 16px; }
  .du-year { gap: 2px; }
  .du-dot { width: 8px; height: 8px; }
  .du-year > div > span:last-child { font-size: 11px; letter-spacing: 0; }
  .du-recent { grid-template-columns: 1fr; }
  .dtv-cover-text { padding: 28px 0 40px; }
  .dtv-cover-points { grid-template-columns: 1fr; gap: 14px; margin-top: 16px; }
  .dtv-app-main { margin-top: 32px; }
  .dtv-app-sub { grid-template-columns: 1fr; gap: 12px; margin-top: 12px; }
  .dtv-spec-group { margin-top: 28px; }
  .dtv-spec-list > div { grid-template-columns: 110px 1fr; gap: 12px; font-size: 15px; padding: 13px 0; }
  .dtv-specs .dtv-actions { margin-top: 24px; }
}
@media (max-width: 400px) {
  .dtv-hero-title { font-size: 48px; }
}