/* 타닥타닥설치(/tadak/install) 리디자인 (2026-10-14) — .ti 아래로만. 글꼴 Rak고딕(@font-face 는 tdtd2026.css), 포인트 레드.
 * 사이트 common.css 가 div·span·li·h 마다 글꼴·색을 박으므로 .ti, .ti * 에서 다시 정한다. */
.ti { --soft: #F5F5F3; --ink: #111; --ink-2: #555; --ink-3: #999; --line: #E6E6E3; --red: #E60012; --red-2: #C2000F; --dark: #141414;
      background: #fff; color: var(--ink); line-height: 1.6; }
.ti, .ti * { font-family: 'Rak Go', 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif; color: inherit; letter-spacing: -0.01em;
             word-break: keep-all; box-sizing: border-box; }
.ti a { color: inherit; text-decoration: none; }
.ti a:hover { text-decoration: none; }
.ti ol, .ti ul { list-style: none; margin: 0; padding: 0; font-size: inherit; }
.ti img { display: block; max-width: 100%; }
.ti .ti-wrap { max-width: 1380px; margin: 0 auto; padding: 0 40px; }
.ti .ti-ey { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 700; line-height: 1.6; letter-spacing: .08em;
             text-transform: uppercase; color: var(--red); }
.ti .ti-ey:before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--red); }

/* 단추 */
.ti .ti-btn { display: inline-flex; align-items: center; gap: 10px; height: 56px; padding: 0 28px 0 22px; border-radius: 12px;   /* 메인 .btn 과 같은 높이·모서리 */
              transition: background .15s, color .15s, border-color .15s, transform .15s; }
.ti .ti-btn:hover { transform: translateY(-2px); }
.ti .ti-btn svg { width: 22px; height: 22px; flex: none; }
.ti .ti-btn b { font-size: 17px; font-weight: 700; line-height: 1; }
.ti .ti-btn.red { background: var(--red); color: #fff; }
.ti .ti-btn.red svg { fill: #fff; }
.ti .ti-btn.red:hover { background: var(--red-2); }
.ti .ti-btn.line { border: 1.5px solid var(--ink); color: var(--ink); }
.ti .ti-btn.line svg { stroke: var(--ink); }
.ti .ti-btn.line:hover { background: var(--ink); color: #fff; }
.ti .ti-btn.line:hover svg { stroke: #fff; }
.ti .ti-btn.sm { height: 54px; padding: 0 24px; font-size: 16px; font-weight: 800; }

/* 첫 화면 — 메인 첫 화면과 같은 틀(10/16): 글 칸 0.9 : 그림 칸 1.1, 사이 56px, 위아래 88/72, 제목 66px, 설명 19px */
.ti .ti-hero { padding: 88px 0 72px; }
.ti .ti-top { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 56px; align-items: center; }
.ti .ti-pre { margin: 18px 0 0; font-size: 22px; font-weight: 500; color: var(--ink-2); }
.ti .ti-hero h2 { margin: 6px 0 24px; font-size: 66px; font-weight: 950; line-height: 1.08; letter-spacing: -0.045em; color: var(--ink); }
.ti .ti-hero h2 em { font-style: normal; color: var(--red); }
.ti .ti-lead { margin: 0; font-size: 19px; line-height: 1.65; color: var(--ink-2); }
.ti .ti-dl { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; max-width: 440px; margin-top: 36px; }   /* 두 단추 같은 크기 */
.ti .ti-dl .ti-btn { justify-content: center; padding: 0 20px; }
.ti .ti-pconly { display: none; }
/* 프로그램 화면(C, 10/16) — 그림 칸 전체에 연회색 모눈 판, 앱은 비틀지 않고 바르게, 둘레에 기능 칩 3개를 띄운다 */
.ti .ti-shot { position: relative; display: flex; justify-content: center; align-items: center; padding: 32px 0;
               border-radius: 22px; background: var(--soft); overflow: hidden; }
.ti .ti-shot:before { content: ""; position: absolute; top: 0; right: 0; bottom: 0; left: 0;
               background: repeating-linear-gradient(0deg, rgba(0,0,0,.035) 0 1px, transparent 1px 26px),
                           repeating-linear-gradient(90deg, rgba(0,0,0,.035) 0 1px, transparent 1px 26px); }
.ti .ti-shot img { position: relative; width: 320px; height: auto; border-radius: 10px;
                   box-shadow: 0 2px 6px rgba(0,0,0,.06), 0 28px 60px rgba(0,0,0,.16); }
.ti .ti-chip { position: absolute; z-index: 2; display: flex; align-items: center; gap: 9px; padding: 12px 16px 12px 12px; border-radius: 14px;
               background: #fff; box-shadow: 0 10px 30px rgba(0,0,0,.12); font-size: 15px; font-weight: 800; line-height: 1.2;
               letter-spacing: -0.02em; color: var(--ink); white-space: nowrap; }
.ti .ti-chip i { font-style: normal; font-size: 12px; font-weight: 800; line-height: 1; color: #fff; background: var(--red);
                 border-radius: 6px; padding: 4px 7px; }
.ti .ti-chip.c1 { left: 6%; top: 15%; }
.ti .ti-chip.c2 { right: 5%; top: 42%; }
.ti .ti-chip.c3 { left: 8%; bottom: 16%; }

/* 이용방법 */
.ti .ti-steps { background: var(--soft); padding: 88px 0; }
.ti .ti-h { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 36px; }
.ti .ti-h h3 { margin: 12px 0 0; font-size: 40px; font-weight: 850; line-height: 1.2; letter-spacing: -0.035em; color: var(--ink); }
.ti .ti-h p { margin: 10px 0 0; font-size: 16px; color: var(--ink-2); }
.ti .ti-more { display: inline-flex; align-items: center; gap: 8px; height: 48px; padding: 0 20px 0 16px; border-radius: 999px;
               background: var(--ink); color: #fff; font-size: 15px; font-weight: 700; transition: background .15s; }
.ti .ti-more svg { width: 18px; height: 18px; fill: var(--red); }
.ti .ti-more:hover { background: var(--red); }
.ti .ti-more:hover svg { fill: #fff; }
.ti .ti-step-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; counter-reset: s; }
.ti .ti-step-list li { position: relative; display: flex; flex-direction: column; padding: 28px 26px 30px; border-radius: 16px; background: #fff;
                       border: 1.5px solid transparent; transition: border-color .2s, transform .2s; }
.ti .ti-step-list li:hover { border-color: var(--red); transform: translateY(-4px); }
.ti .ti-step-list li + li:before { content: ""; position: absolute; left: -15px; top: 50%; width: 12px; height: 12px; margin-top: -6px;
                       border-top: 2px solid #C9C9C5; border-right: 2px solid #C9C9C5; transform: rotate(45deg); }
.ti .ti-step-list .n { font-size: 13px; font-weight: 800; letter-spacing: .06em; color: var(--red); }
.ti .ti-step-list svg { width: 40px; height: 40px; margin: 18px 0 22px; stroke: var(--ink); }
.ti .ti-step-list b { font-size: 19px; font-weight: 800; letter-spacing: -0.03em; line-height: 1.35; color: var(--ink); }
.ti .ti-step-list span:last-child { margin-top: 6px; font-size: 14px; color: var(--ink-3); }

/* 주요기능 */
.ti .ti-feat { position: relative; overflow: hidden; padding: 88px 0 96px; color: #fff;
               background: radial-gradient(80% 120% at 100% 0%, #2C2C2C 0%, #141414 55%, #0E0E0E 100%); }
.ti .ti-feat:before { content: ""; position: absolute; top: 0; right: 0; bottom: 0; left: 0;
               background: repeating-linear-gradient(0deg, rgba(255,255,255,.04) 0 1px, transparent 1px 26px),
                           repeating-linear-gradient(90deg, rgba(255,255,255,.04) 0 1px, transparent 1px 26px); }
.ti .ti-gl { position: absolute; right: 4%; top: -70px; font-size: 460px; font-weight: 900; line-height: 1; letter-spacing: 0;
             color: rgba(255,255,255,.03); -webkit-text-stroke: 2px rgba(255,255,255,.14); pointer-events: none; }
.ti .ti-feat .ti-wrap { position: relative; }
.ti .ti-feat .ti-ey { color: #FF3B47; }
.ti .ti-feat .ti-h h3 { color: #fff; }
.ti .ti-feat .ti-h p { color: #BDBDBD; }
.ti .ti-feat-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.ti .ti-feat-list li { display: flex; flex-direction: column; padding: 28px 28px 30px; border-radius: 16px;
                       background: rgba(255,255,255,.055); border: 1px solid rgba(255,255,255,.12); }
.ti .ti-feat-list .n { font-size: 13px; font-weight: 800; letter-spacing: .06em; color: #FF3B47; }
.ti .ti-feat-list b { margin-top: 30px; font-size: 24px; font-weight: 850; letter-spacing: -0.03em; color: #fff; }
.ti .ti-feat-list span:last-child { margin-top: 8px; font-size: 15px; line-height: 1.6; color: #BDBDBD; }

/* 태블릿·휴대폰 (사이트 기준 1300 / 750) */
@media screen and (max-width: 1100px) {
  .ti .ti-top { grid-template-columns: minmax(0, 1fr); }
  .ti .ti-shot img { width: 300px; }
  .ti .ti-step-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .ti .ti-step-list li:nth-child(3):before { display: none; }
  .ti .ti-feat-list { grid-template-columns: minmax(0, 1fr); }
  .ti .ti-feat-list b { margin-top: 14px; }
}
@media screen and (max-width: 750px) {
  .ti .ti-wrap { padding: 0 20px; }
  .ti .ti-hero { padding: 40px 0 44px; }
  .ti .ti-pre { font-size: 17px; }
  .ti .ti-hero h2 { font-size: 42px; }
  .ti .ti-lead { font-size: 15px; }
  .ti .ti-shot { padding: 28px 0; margin-top: 8px; }
  .ti .ti-shot img { width: 240px; }
  .ti .ti-chip { display: none; }   /* 좁은 화면에선 앱을 가린다 */
  .ti .ti-steps, .ti .ti-feat { padding: 60px 0; }
  .ti .ti-h { flex-direction: column; align-items: flex-start; margin-bottom: 26px; }
  .ti .ti-h h3 { font-size: 28px; }
  .ti .ti-step-list { gap: 10px; }
  .ti .ti-step-list li { padding: 20px 18px 22px; }
  .ti .ti-step-list li:before { display: none; }
  .ti .ti-step-list svg { width: 32px; height: 32px; margin: 12px 0 14px; }
  .ti .ti-step-list b { font-size: 16px; }
  .ti .ti-gl { font-size: 280px; right: -30px; }
  .ti .ti-feat-list b { font-size: 20px; }
}

/* 휴대폰·태블릿(손가락으로 쓰는 기기) — 설치 프로그램은 PC 용이라 단추 대신 안내 */
@media screen and (max-width: 750px), (hover: none) and (pointer: coarse) {
  .ti .ti-dl { display: none; }
  .ti .ti-pconly { display: flex; align-items: center; gap: 12px; margin: 30px 0 0; padding: 18px 20px; border-radius: 14px;
                   background: var(--soft); border: 1px solid var(--line); font-size: 16px; font-weight: 750; color: var(--ink); }
  .ti .ti-pconly svg { width: 26px; height: 26px; flex: none; stroke: var(--red); }
}

/* 이 페이지만 — 위쪽 띠가 빠졌으니 본문 틀(#content)의 위아래 여백도 없앤다(첫 화면·검정 띠가 제 여백을 가짐) */
#sub #content { padding: 0 !important; }