:root {
  --ink: #161a2d;
  --ink-2: #23283f;
  --muted: #646c82;
  --muted-2: #8b93a8;
  --line: #e5e8f1;
  --line-strong: #d4d9e7;
  --surface: #ffffff;
  --surface-soft: #f6f7fb;
  --surface-blue: #f0f6ff;
  --navy: #11152b;
  --navy-2: #171b38;
  --blue: #287df0;
  --blue-2: #63a9ff;
  --purple: #6334e8;
  --purple-2: #9678ff;
  --green: #16a779;
  --orange: #f28a2f;
  --shadow-sm: 0 10px 30px rgba(28, 35, 67, .08);
  --shadow-lg: 0 32px 100px rgba(14, 21, 54, .22);
  --radius: 24px;
  --max: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-family: "Pretendard Variable", Pretendard, Inter, -apple-system, BlinkMacSystemFont,
    "Apple SD Gothic Neo", "Segoe UI", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { color: inherit; }
img, svg { display: block; max-width: 100%; }
.wrap { width: min(var(--max), calc(100% - 48px)); margin: 0 auto; }
.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;
}
.skip-link {
  position: fixed; left: 16px; top: -60px; z-index: 999; padding: 10px 16px;
  border-radius: 10px; color: #fff; background: var(--purple); font-weight: 800;
}
.skip-link:focus { top: 16px; }

.topbar {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .94);
  border-bottom: 1px solid rgba(225, 228, 239, .78);
  box-shadow: 0 8px 24px rgba(24, 31, 61, .035);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  backdrop-filter: blur(20px) saturate(150%);
}
.topbar-inner { height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 9px; color: #171c31; font-size: 19px; font-weight: 900; letter-spacing: -.045em; }
.brand-mark {
  width: 31px; height: 31px; flex: 0 0 31px; object-fit: contain;
  filter: drop-shadow(0 6px 12px rgba(99, 52, 232, .16));
}
.brand-office { color: inherit; }
.nav { display: flex; align-items: center; gap: 22px; color: #60687d; font-size: 13px; font-weight: 780; }
.nav > a:not(.btn):hover { color: var(--ink); }
.lang-switch {
  display: inline-flex; align-items: center; gap: 4px; padding: 4px;
  border: 1px solid var(--line); border-radius: 999px; background: #fff;
}
.lang-switch a { padding: 4px 8px; border-radius: 999px; color: var(--muted); font-size: 12px; font-weight: 800; }
.lang-switch a[aria-current="page"] { color: #fff; background: var(--ink); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  min-height: 48px; padding: 12px 20px; border: 1px solid transparent; border-radius: 14px;
  cursor: pointer; font-size: 15px; font-weight: 850; line-height: 1.2;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease, background .18s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:focus-visible, .demo-tab:focus-visible, .office-tab:focus-visible, summary:focus-visible {
  outline: 3px solid rgba(40, 125, 240, .28); outline-offset: 3px;
}
.btn-sm { min-height: 42px; padding: 10px 16px; font-size: 13px; border-radius: 12px; }
.btn-primary {
  color: #fff; background: linear-gradient(135deg, var(--blue), var(--purple-2));
  box-shadow: 0 14px 34px rgba(78, 96, 235, .3);
}
.btn-primary:hover { box-shadow: 0 18px 42px rgba(78, 96, 235, .38); }
.btn-secondary { background: #fff; border-color: var(--line-strong); color: var(--ink); }
.btn-secondary:hover { border-color: #aeb7ce; box-shadow: var(--shadow-sm); }
.btn-dark { color: #fff; background: rgba(255, 255, 255, .09); border-color: rgba(255, 255, 255, .18); }
.btn-dark:hover { background: rgba(255, 255, 255, .14); }
.btn .platform-icon { width: 18px; height: 18px; }
.btn[data-release-ready="false"] { opacity: .58; cursor: not-allowed; box-shadow: none; transform: none; }

.hero {
  position: relative; min-height: 860px; padding: 94px 0 110px; overflow: hidden;
  color: #fff; background: var(--navy);
}
.hero::before, .hero::after {
  content: ""; position: absolute; pointer-events: none; border-radius: 50%; filter: blur(2px);
}
.hero::before {
  width: 900px; height: 900px; left: -430px; top: -520px;
  background: radial-gradient(circle, rgba(40, 125, 240, .5), rgba(40, 125, 240, 0) 67%);
}
.hero::after {
  width: 980px; height: 980px; right: -500px; top: -450px;
  background: radial-gradient(circle, rgba(126, 88, 255, .44), rgba(126, 88, 255, 0) 67%);
}
.hero-grid {
  position: absolute; inset: 0; opacity: .13; pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.12) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 82%);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 82%);
}
.hero-layout { position: relative; z-index: 1; display: grid; grid-template-columns: .92fr 1.08fr; gap: 48px; align-items: center; }
.hero-copy-block { min-width: 0; }
.launch-pill {
  display: inline-flex; align-items: center; gap: 9px; padding: 7px 13px; border-radius: 999px;
  border: 1px solid rgba(255,255,255,.17); background: rgba(255,255,255,.07);
  color: #dce3ff; font-size: 12px; font-weight: 850; letter-spacing: .05em;
}
.live-dot { position: relative; width: 8px; height: 8px; border-radius: 50%; background: #58e6ae; box-shadow: 0 0 0 5px rgba(88, 230, 174, .12); }
.hero h1 {
  max-width: 620px; margin: 24px 0 0; font-size: clamp(43px, 5vw, 64px);
  line-height: 1.08; letter-spacing: -.052em; font-weight: 920;
  word-break: keep-all; text-wrap: balance;
}
.hero-gradient { background: linear-gradient(105deg, #7ebcff 5%, #c4b3ff 64%, #fff 110%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-copy { max-width: 610px; margin: 24px 0 0; color: #b2b9cf; font-size: 17px; line-height: 1.72; letter-spacing: -.01em; word-break: keep-all; }
.hero-copy strong { color: #fff; }
.hero-actions { margin-top: 32px; display: flex; gap: 12px; flex-wrap: wrap; }
.hero-actions .btn { min-height: 54px; padding: 14px 22px; }
.release-note { margin: 14px 0 0; color: #7f89a6; font-size: 12px; }
.trust-row { margin-top: 34px; display: flex; gap: 12px 20px; flex-wrap: wrap; color: #c8cfe1; font-size: 13px; font-weight: 700; }
.trust-row span { display: inline-flex; align-items: center; gap: 7px; }
.trust-row svg { width: 16px; height: 16px; color: #59e3a7; }

.product-demo { position: relative; min-width: 0; }
.demo-glow {
  position: absolute; inset: 14% 8% -8%; border-radius: 42%;
  background: radial-gradient(circle, rgba(99, 52, 232, .36), rgba(40, 125, 240, .14) 50%, transparent 72%);
  filter: blur(40px); pointer-events: none;
}
.demo-tabs { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-bottom: 11px; }
.demo-tab {
  position: relative; min-width: 0; overflow: hidden; padding: 10px 10px 12px;
  border: 1px solid rgba(255,255,255,.1); border-radius: 13px;
  color: #939db8; background: rgba(255,255,255,.035); cursor: pointer; text-align: left;
}
.demo-tab strong { display: block; color: inherit; font-size: 12px; }
.demo-tab span { display: block; overflow: hidden; color: #747f9d; font-size: 10px; white-space: nowrap; text-overflow: ellipsis; }
.demo-tab::after { content: ""; position: absolute; left: 10px; right: 10px; bottom: 5px; height: 2px; border-radius: 2px; background: rgba(255,255,255,.08); }
.demo-tab[aria-selected="true"] { color: #fff; border-color: rgba(146,117,255,.48); background: rgba(112, 76, 255, .16); }
.demo-tab[aria-selected="true"]::before {
  content: ""; position: absolute; z-index: 1; left: 10px; bottom: 5px; height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, var(--blue-2), #b49dff); animation: tab-progress 6.5s linear both;
}
.demo-window {
  position: relative; overflow: hidden; min-height: 510px; border: 1px solid rgba(255,255,255,.16);
  border-radius: 22px; background: #f6f7fb; color: var(--ink); box-shadow: var(--shadow-lg);
}
.window-bar { height: 46px; display: flex; align-items: center; gap: 8px; padding: 0 15px; background: #eef0f5; border-bottom: 1px solid #dfe3ed; }
.window-dot { width: 10px; height: 10px; border-radius: 50%; }
.window-home { margin-left: 10px; color: #8b93a5; }
.window-title { min-width: 0; margin-left: 8px; padding: 6px 13px; border-radius: 9px 9px 0 0; background: #fff; font-size: 11px; font-weight: 750; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.window-save { margin-left: auto; width: 17px; height: 17px; color: #7a8296; }
.demo-panel { position: absolute; inset: 46px 0 0; display: grid; grid-template-columns: minmax(0, 1fr) 230px; animation: scene-in .3s ease both; }
.demo-panel[hidden] { display: none; }
.editor-shell { position: relative; min-width: 0; overflow: hidden; background: #e7e8ec; border-right: 1px solid #dfe3ed; }
.editor-ribbon { height: 66px; display: flex; align-items: center; gap: 10px; padding: 7px 12px; background: #fff; border-bottom: 1px solid #dfe3ed; }
.app-square { width: 28px; height: 28px; display: grid; place-items: center; border-radius: 8px; color: #fff; font-size: 11px; font-weight: 900; }
.ribbon-body { min-width: 0; flex: 1; display: grid; align-self: stretch; grid-template-rows: 19px 1fr; }
.ribbon-tabs { display: flex; align-items: flex-start; gap: 13px; color: #7c8497; font-size: 7px; white-space: nowrap; }
.ribbon-tabs strong { position: relative; color: var(--ribbon-accent, #347fd3); font-weight: 900; }
.ribbon-tabs strong::after { content: ""; position: absolute; left: 0; right: 0; bottom: -3px; height: 2px; border-radius: 2px; background: currentColor; }
.ribbon-tools { min-width: 0; display: flex; align-items: center; gap: 7px; overflow: hidden; color: #4f5668; font-size: 9px; }
.ribbon-tool { min-width: 19px; height: 20px; display: grid; place-items: center; padding: 0 5px; border: 1px solid #e2e5ec; border-radius: 5px; background: #fafbfc; font-size: 8px; font-style: normal; font-weight: 800; }
.ribbon-tool.wide { min-width: 60px; justify-content: start; color: #666f82; font-weight: 650; }
.ribbon-tool.icon { padding: 0; font-size: 11px; }
.ribbon-divider { width: 1px; height: 22px; flex: 0 0 1px; background: #e1e4eb; }
.canvas-wrap { position: absolute; inset: 66px 0 0; padding: 22px; overflow: hidden; }
.doc-page {
  width: 75%; min-height: 330px; margin: 0 auto; padding: 34px 38px; border-radius: 2px; background: #fff;
  box-shadow: 0 8px 26px rgba(29, 37, 64, .13);
}
.doc-page h3 { margin: 0 0 20px; color: #2d5897; font-size: 19px; line-height: 1.3; }
.doc-heading { margin: 18px 0 8px; color: #233b69; font-size: 12px; font-weight: 900; }
.copy-line { height: 6px; margin: 8px 0; border-radius: 5px; background: #e8ebf1; }
.copy-line.w90 { width: 90%; } .copy-line.w80 { width: 80%; } .copy-line.w65 { width: 65%; } .copy-line.w48 { width: 48%; }
.mini-table { margin-top: 16px; border: 1px solid #dfe3ec; border-radius: 7px; overflow: hidden; }
.mini-table-row { display: grid; grid-template-columns: .7fr 1.3fr; }
.mini-table-row span { padding: 6px 8px; border-right: 1px solid #dfe3ec; border-bottom: 1px solid #dfe3ec; font-size: 8px; }
.mini-table-row span:last-child { border-right: 0; }
.mini-table-row:last-child span { border-bottom: 0; }
.mini-table-row:first-child { background: #f1f5fb; font-weight: 850; }
.sheet-canvas { position: absolute; inset: 66px 0 0; background-color: #fff; background-image: linear-gradient(#e5e8ee 1px, transparent 1px), linear-gradient(90deg, #e5e8ee 1px, transparent 1px); background-size: 48px 26px; background-position: 24px 26px; }
.sheet-canvas::before { content: "1\A 2\A 3\A 4\A 5\A 6\A 7\A 8\A 9"; white-space: pre; position: absolute; inset: 26px auto 0 0; width: 24px; padding-top: 6px; border-right: 1px solid #e0e4ec; color: #858c9d; background: #f5f6f8; font-size: 7px; line-height: 26px; text-align: center; }
.sheet-cols { display: grid; grid-template-columns: repeat(5, 48px); height: 26px; margin-left: 24px; background: #f4f5f7; font-size: 8px; color: #7c8495; }
.sheet-cols span { display: grid; place-items: center; border-right: 1px solid #e3e6ec; }
.sheet-select { position: absolute; left: 120px; top: 78px; width: 96px; height: 52px; border: 2px solid #16a779; background: rgba(22,167,121,.05); }
.chart-card { position: absolute; right: 22px; bottom: 25px; width: min(200px, 62%); height: 130px; padding: 15px; border: 1px solid #dde2ec; border-radius: 12px; background: #fff; box-shadow: var(--shadow-sm); }
.chart-card strong { font-size: 8px; }
.bars { height: 78px; display: flex; align-items: flex-end; gap: 10px; padding-top: 10px; }
.bars i { display: block; width: 18px; border-radius: 4px 4px 0 0; background: linear-gradient(#65a9ff, #4f7cf4); }
.bars i:nth-child(1) { height: 35%; } .bars i:nth-child(2) { height: 57%; } .bars i:nth-child(3) { height: 72%; } .bars i:nth-child(4) { height: 88%; }
.slide-canvas { position: absolute; inset: 66px 0 0; padding: 24px 28px 20px 54px; }
.slide-thumbs { position: absolute; left: 8px; top: 12px; display: grid; gap: 8px; }
.slide-thumb { width: 36px; height: 23px; border: 1px solid #ccd2df; border-radius: 3px; background: #fff; }
.slide-thumb.on { border: 2px solid #dc502e; }
.slide-stage { position: relative; height: 100%; overflow: hidden; padding: 32px; color: #fff; background: linear-gradient(135deg, #101a3c, #1f2f65); box-shadow: var(--shadow-sm); }
.slide-stage::after { content: ""; position: absolute; width: 180px; height: 180px; right: -50px; bottom: -80px; border-radius: 50%; background: linear-gradient(135deg, #ff8062, #f4b747); opacity: .94; }
.slide-kicker { color: #7fc6ff; font-size: 8px; font-weight: 900; letter-spacing: .18em; }
.slide-stage h3 { position: relative; z-index: 1; width: 75%; margin: 12px 0; font-size: 24px; line-height: 1.16; }
.slide-stats { position: relative; z-index: 1; display: flex; gap: 9px; margin-top: 26px; }
.slide-stat { min-width: 70px; padding: 9px; border-radius: 9px; background: rgba(255,255,255,.12); }
.slide-stat strong { display: block; font-size: 14px; }.slide-stat span { color: #b8c4e6; font-size: 7px; }
.hwp-ruler { height: 22px; background: repeating-linear-gradient(90deg, #a8aeb9 0 1px, transparent 1px 8px), #cfd3dc; border-bottom: 1px solid #b8beca; }
.hwp-page { width: 78%; min-height: 320px; margin: 16px auto; padding: 36px; background: #fff; box-shadow: var(--shadow-sm); }
.hwp-page h3 { margin: 0 0 22px; text-align: center; font-size: 15px; letter-spacing: .2em; }
.hwp-cursor { display: inline-block; width: 2px; height: 14px; margin-left: 10px; background: var(--ink); animation: blink 1s step-end infinite; }

.demo-ai { min-width: 0; padding: 14px; background: #fff; }
.demo-ai-head { display: flex; align-items: center; gap: 8px; padding-bottom: 12px; border-bottom: 1px solid var(--line); font-size: 11px; font-weight: 900; }
.bati-glyph { width: 17px; height: 17px; flex: 0 0 17px; object-fit: contain; }
.demo-ai-context { margin: 10px 0 14px; color: #7a8295; font-size: 8px; }
.chat-bubble { max-width: 92%; padding: 9px 10px; border-radius: 12px; font-size: 9px; line-height: 1.5; }
.chat-bubble.user { margin-left: auto; background: #f0f1f5; }
.chat-answer { margin-top: 12px; color: #33394f; font-size: 9px; line-height: 1.65; }
.chat-answer strong { color: var(--ink); }
.ai-action { margin-top: 12px; padding: 9px; border: 1px solid #ded8fb; border-radius: 10px; background: #f7f5ff; color: #5f49c4; font-size: 8px; font-weight: 850; }
.ai-composer { position: absolute; left: calc(100% - 216px); right: 14px; bottom: 14px; height: 55px; padding: 10px; border: 1px solid #dfe3ed; border-radius: 13px; color: #a0a6b5; background: #fff; font-size: 8px; box-shadow: 0 5px 18px rgba(35,44,76,.05); }
.ai-send { position: absolute; right: 7px; bottom: 7px; width: 27px; height: 27px; display: grid; place-items: center; border-radius: 9px; color: #fff; background: var(--purple); }
.demo-status {
  position: absolute; z-index: 4; right: 11px; bottom: 11px; display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 8px; border: 1px solid rgba(255,255,255,.14); border-radius: 999px;
  color: rgba(255,255,255,.68); background: rgba(17,21,43,.78); font-size: 8px; font-weight: 800;
  letter-spacing: .08em; -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
}
.demo-status i { width: 5px; height: 5px; border-radius: 50%; background: #58e6ae; }

.proof-strip { position: relative; z-index: 2; margin-top: -40px; }
.proof-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); overflow: hidden;
  border: 1px solid var(--line); border-radius: 22px; background: rgba(255,255,255,.96); box-shadow: 0 25px 70px rgba(19,26,55,.1);
}
.proof-item { padding: 25px 23px; }
.proof-item + .proof-item { border-left: 1px solid var(--line); }
.proof-item strong { display: block; font-size: 18px; line-height: 1.3; }
.proof-item span { display: block; margin-top: 5px; color: var(--muted); font-size: 12px; }

section { padding: 112px 0; scroll-margin-top: 68px; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--purple); font-size: 12px; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 24px; height: 2px; border-radius: 2px; background: currentColor; }
.section-title { margin: 14px 0 0; font-size: clamp(32px, 4.4vw, 50px); line-height: 1.16; letter-spacing: -.045em; font-weight: 920; word-break: keep-all; text-wrap: balance; }
.section-copy { max-width: 720px; margin: 17px 0 0; color: var(--muted); font-size: 17px; }
.center { text-align: center; }
.center .eyebrow, .center .section-copy { margin-left: auto; margin-right: auto; }
.center .eyebrow::before { display: none; }

.office-showcase {
  position: relative; overflow: hidden;
  background: linear-gradient(180deg, #fff 0%, #f5f7fb 54%, #fff 100%);
}
.office-showcase::before {
  content: ""; position: absolute; width: 760px; height: 760px; left: 50%; top: 110px;
  border-radius: 50%; pointer-events: none; transform: translateX(-50%);
  background: radial-gradient(circle, rgba(99,52,232,.095), rgba(40,125,240,.035) 42%, transparent 70%);
}
.office-showcase .wrap { position: relative; z-index: 1; }
.office-tabs {
  max-width: 980px; margin: 46px auto 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px;
}
.office-tab {
  min-width: 0; display: flex; align-items: center; gap: 12px; padding: 13px 15px;
  border: 1px solid var(--line); border-radius: 16px; color: #667087; background: rgba(255,255,255,.78);
  box-shadow: 0 8px 26px rgba(30,39,76,.035); cursor: pointer; text-align: left;
  transition: color .2s ease, border-color .2s ease, background .2s ease, box-shadow .2s ease, transform .2s ease;
}
.office-tab:hover { transform: translateY(-2px); border-color: #cbd2e3; box-shadow: var(--shadow-sm); }
.office-tab { position: relative; overflow: hidden; }
.office-tab[aria-selected="true"] {
  color: #fff; border-color: rgba(146,117,255,.55); background: #171c33;
  box-shadow: 0 0 0 3px rgba(146,117,255,.16), 0 16px 44px rgba(99,52,232,.26);
}
/* 자동 순환 중에만 하단 진행 바 노출 — 다음 전환까지 남은 시간을 시각화해
   "탭이고, 곧 넘어간다" 를 함께 알린다. 수동 조작 시 is-auto 가 제거돼 사라진다. */
.office-tabs.is-auto .office-tab[aria-selected="true"]::after {
  content: ""; position: absolute; left: 15px; right: 15px; bottom: 7px; height: 3px;
  border-radius: 2px; transform-origin: left;
  background: linear-gradient(90deg, #6db4ff, #b49dff);
  animation: office-progress 7s linear both;
}
@keyframes office-progress { from { transform: scaleX(0); } to { transform: scaleX(1); } }
@media (prefers-reduced-motion: reduce) {
  .office-tabs.is-auto .office-tab[aria-selected="true"]::after { display: none; }
}
.office-tab-icon {
  width: 37px; height: 37px; flex: 0 0 37px; display: grid; place-items: center; border-radius: 10px;
  color: #fff; font-size: 14px; font-weight: 920; box-shadow: inset 0 0 0 1px rgba(255,255,255,.16);
}
.office-tab-icon.docs { background: #397fd3; }
.office-tab-icon.sheets { background: #3ba36c; }
.office-tab-icon.slides { background: #dc4e31; }
.office-tab-icon.pdf { font-size: 8.5px; letter-spacing: .01em; }
.office-tab-icon.pdf { background: #d94a53; }
.office-tab strong, .office-tab small { display: block; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.office-tab strong { color: inherit; font-size: 14px; line-height: 1.2; }
.office-tab small { margin-top: 4px; color: #929aad; font-size: 9px; font-weight: 750; letter-spacing: .03em; }
.office-tab[aria-selected="true"] small { color: #aeb8d1; }
.office-stage {
  max-width: 1100px; min-height: 500px; margin: 14px auto 0; overflow: hidden;
  border: 1px solid var(--line); border-radius: 30px; background: #fff;
  box-shadow: 0 32px 86px rgba(24,33,65,.13);
}
.office-product-panel { min-height: 500px; display: grid; grid-template-columns: .86fr 1.14fr; animation: scene-in .28s ease both; }
.office-product-panel[hidden] { display: none; }
.office-product-copy { display: flex; flex-direction: column; justify-content: center; padding: 54px 48px; }
.product-badge {
  align-self: flex-start; display: inline-flex; align-items: center; gap: 7px; padding: 5px 10px;
  border-radius: 999px; color: #53617e; background: #f1f3f8; font-size: 10px; font-weight: 900; letter-spacing: .07em;
}
.product-badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--product-color, var(--blue)); }
.product-badge.docs { --product-color: #397fd3; }.product-badge.sheets { --product-color: #3ba36c; }
.product-badge.slides { --product-color: #dc4e31; }.product-badge.pdf { --product-color: #d94a53; }
.office-product-copy h3 { margin: 18px 0 0; font-size: 34px; line-height: 1.18; letter-spacing: -.04em; word-break: keep-all; }
.office-product-copy > p { margin: 14px 0 0; color: var(--muted); font-size: 14px; word-break: keep-all; }
.office-feature-list { display: grid; gap: 10px; margin: 23px 0 0; padding: 0; list-style: none; }
.office-feature-list li { position: relative; padding-left: 22px; color: #3e465c; font-size: 13px; font-weight: 700; }
.office-feature-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--product-color, var(--green)); font-weight: 950; }
.format-chips { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 25px; }
.format-chips span { padding: 5px 9px; border: 1px solid var(--line); border-radius: 8px; color: #7b8499; background: #fafbfc; font-size: 9px; font-weight: 850; }
.office-preview { position: relative; min-width: 0; min-height: 500px; overflow: hidden; display: flex; flex-direction: column; border-left: 1px solid var(--line); background: #eef1f6; }
.office-preview.docs-preview { --product-color: #397fd3; }
.office-preview.sheets-preview { --product-color: #1f9e63; }
.office-preview.slides-preview { --product-color: #dc4e31; }
.office-preview.pdf-preview { --product-color: #d94a53; }

/* 공통 크롬(제목줄) */
.pv-chrome { flex: none; display: flex; align-items: center; gap: 10px; height: 46px; padding: 0 16px; border-bottom: 1px solid #dce1ea; background: #fbfcfe; }
.pv-app { width: 26px; height: 26px; display: grid; place-items: center; border-radius: 7px; color: #fff; background: var(--product-color); font-size: 10px; font-style: normal; font-weight: 900; letter-spacing: .01em; }
.pdf-preview .pv-app { font-size: 8px; }
.pv-file { color: #33394a; font-size: 12px; font-weight: 700; }
.pv-saved { margin-left: auto; display: inline-flex; align-items: center; gap: 5px; color: #1f9e63; font-size: 10.5px; font-weight: 700; }
.pv-saved::before { content: "✓"; font-size: 10px; }

/* Docs — 리본 + 문서 페이지 */
.pv-ribbon { flex: none; display: flex; align-items: center; gap: 16px; height: 38px; padding: 0 16px; border-bottom: 1px solid #dce1ea; background: #fff; color: #6b7488; font-size: 11px; font-weight: 600; }
.pv-ribbon .on { position: relative; color: var(--product-color); font-weight: 800; }
.pv-ribbon .on::after { content: ""; position: absolute; left: 0; right: 0; bottom: -11px; height: 2px; border-radius: 2px; background: var(--product-color); }
.pv-tools { margin-left: auto; display: flex; gap: 5px; }
.pv-tools b { min-width: 22px; height: 22px; display: grid; place-items: center; padding: 0 6px; border: 1px solid #e2e6ee; border-radius: 6px; color: #444c60; background: #f7f8fb; font-size: 10px; font-weight: 700; }
.pv-tools b.wide { font-weight: 600; } .pv-tools b.itl { font-style: italic; } .pv-tools b.und { text-decoration: underline; } .pv-tools b.clr { color: #d23f3f; }
.pv-docpage { position: relative; width: 76%; margin: 24px auto; padding: 30px 34px 40px; background: #fff; border-radius: 3px; box-shadow: 0 1px 2px rgba(30,39,70,.07), 0 14px 38px rgba(30,39,70,.14); }
.pv-docpage em { color: #99a1b3; font-size: 8.5px; font-style: normal; font-weight: 800; letter-spacing: .12em; }
.pv-docpage h4 { margin: 9px 0 14px; padding-bottom: 10px; border-bottom: 2px solid #2d5794; color: #223a63; font-size: 16.5px; }
.pv-p { margin: 0 0 9px; color: #454d61; font-size: 10.5px; line-height: 1.75; text-align: justify; word-break: keep-all; }
.pv-p b { color: #223a63; } .pv-p.tight { margin-bottom: 6px; }
.pv-caret { display: inline-block; width: 1.5px; height: 12px; margin-left: 1px; vertical-align: -2px; background: #2d6cdf; animation: pv-blink 1.1s steps(1) infinite; }
@keyframes pv-blink { 50% { opacity: 0; } }
.pv-table { width: 100%; margin-top: 12px; border-collapse: collapse; font-size: 10px; }
.pv-table th, .pv-table td { padding: 6px 9px; border: 1px solid #dfe3eb; color: #454d61; }
.pv-table th { background: #f0f4fa; color: #223a63; font-weight: 800; text-align: left; }
.pv-table .up { color: #1f9e63; font-weight: 800; }
.pv-pageno { position: absolute; bottom: 12px; left: 0; right: 0; color: #b6bccb; font-size: 8.5px; text-align: center; }

/* Sheets — 수식바 + 그리드 + 차트 + 시트탭 */
.pv-formula { flex: none; display: flex; align-items: center; gap: 0; height: 32px; border-bottom: 1px solid #dce1ea; background: #fff; font-size: 11px; }
.pv-formula .ref { width: 52px; display: grid; place-items: center; align-self: stretch; border-right: 1px solid #e3e7ef; color: #33394a; font-weight: 800; }
.pv-formula .fx { padding: 0 10px; color: #8b94a7; font-style: italic; font-weight: 700; }
.pv-formula code { color: #1f6e4d; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 10.5px; }
.pv-sheet { position: relative; flex: 1; overflow: hidden; background: #fff; }
.pv-grid { width: 100%; border-collapse: collapse; font-size: 10.5px; table-layout: fixed; }
.pv-grid th { border: 1px solid #e3e7ef; background: #f4f6fa; color: #7d859a; font-size: 9px; font-weight: 700; height: 24px; }
.pv-grid th.cn { width: 30px; } .pv-grid th:not(.cn) { width: auto; }
.pv-grid th.csel { background: #e2f3ec; color: #1f9e63; }
.pv-grid td { height: 27px; padding: 0 9px; border: 1px solid #eceff5; color: #3a4154; overflow: hidden; white-space: nowrap; }
.pv-grid td.hd { background: #f7f9fc; color: #223a63; font-weight: 800; }
.pv-grid td.num { text-align: right; font-variant-numeric: tabular-nums; }
.pv-grid td.tot { background: #fbfcfe; color: #16233f; font-weight: 800; }
.pv-grid td.sel { position: relative; background: rgba(31,158,99,.06); border-left: 2.5px solid #1f9e63; border-right: 2.5px solid #1f9e63; }
.pv-grid td.sel.st { border-top: 2.5px solid #1f9e63; }
.pv-grid td.selend { position: relative; background: rgba(31,158,99,.1); border: 2.5px solid #1f9e63; }
.pv-grid td.selend::after { content: ""; position: absolute; right: -4.5px; bottom: -4.5px; width: 7px; height: 7px; border: 1.5px solid #fff; background: #1f9e63; }
.pv-chartcard { position: absolute; right: 16px; bottom: 48px; width: 46%; padding: 14px 16px 12px; border: 1px solid #e0e5ee; border-radius: 13px; background: rgba(255,255,255,.96); box-shadow: 0 4px 10px rgba(30,39,70,.06), 0 18px 44px rgba(30,39,70,.16); backdrop-filter: blur(4px); }
.pv-chartcard strong { color: #223a63; font-size: 11px; }
.pv-chartcard .bars { display: flex; align-items: flex-end; gap: 12px; height: 86px; margin-top: 10px; padding-top: 6px; border-top: 1px dashed #e6e9f0; }
.pv-chartcard .bars i { position: relative; flex: 1; height: var(--h); border-radius: 5px 5px 2px 2px; background: linear-gradient(180deg, #69acff, #3f6ff0); }
.pv-chartcard .bars i u { position: absolute; top: -15px; left: 0; right: 0; color: #5a6c92; font-size: 8px; font-weight: 800; text-align: center; text-decoration: none; }
.pv-chartcard .bars i.ghost { background: repeating-linear-gradient(135deg, #cfd9f4 0 5px, #e5ebfa 5px 10px); }
.pv-sheettabs { flex: none; display: flex; gap: 3px; align-items: center; height: 31px; padding: 0 10px; border-top: 1px solid #dce1ea; background: #f5f7fa; font-size: 10px; color: #6b7488; font-weight: 700; }
.pv-sheettabs span { padding: 4px 12px; border-radius: 7px 7px 0 0; }
.pv-sheettabs .on { background: #fff; border: 1px solid #dce1ea; border-bottom-color: #fff; color: #1f9e63; }
.pv-sheettabs .add { margin-left: 3px; color: #9aa1b5; }

/* Slides — 필름스트립 + 슬라이드 + 발표 바 */
.slides-preview .pv-thumbs { position: absolute; left: 0; top: 46px; bottom: 34px; width: 92px; display: grid; align-content: start; gap: 10px; padding: 14px 12px; border-right: 1px solid #dce1ea; background: #f6f7f9; overflow: hidden; }
.pv-thumbs .th { position: relative; display: block; }
.pv-thumbs .th small { position: absolute; left: -1px; top: 1px; z-index: 1; color: #9aa1b5; font-size: 7.5px; font-weight: 800; }
.pv-thumbs .th i { display: block; height: 42px; margin-left: 10px; border: 1px solid #ccd2dd; border-radius: 4px; background: #fff; position: relative; overflow: hidden; }
.pv-thumbs .th.on i { border: 2px solid #dc4e31; box-shadow: 0 3px 8px rgba(220,78,49,.25); }
.pv-thumbs .t-title { background: linear-gradient(135deg, #111a3d, #24366e) !important; }
.pv-thumbs .t-title::after { content: ""; position: absolute; left: 6px; top: 12px; width: 60%; height: 4px; border-radius: 3px; background: rgba(255,255,255,.85); box-shadow: 0 8px 0 -1px rgba(255,255,255,.4); }
.pv-thumbs .t-chart { display: flex !important; align-items: flex-end; gap: 3px; padding: 6px 8px 5px; }
.pv-thumbs .t-chart u { flex: 1; border-radius: 2px 2px 0 0; background: #7fa7f2; height: 40%; }
.pv-thumbs .t-chart u:nth-child(2) { height: 65%; } .pv-thumbs .t-chart u:nth-child(3) { height: 88%; background: #4f7cf4; }
.pv-thumbs .t-cols::after { content: ""; position: absolute; inset: 8px 8px 8px 8px; background: linear-gradient(90deg, #e7ebf3 47%, transparent 47% 53%, #e7ebf3 53%); border-radius: 2px; }
.pv-thumbs .t-num::after { content: "92%"; position: absolute; inset: 0; display: grid; place-items: center; color: #dc4e31; font-size: 12px; font-weight: 900; }
.slides-preview .pv-slide { position: absolute; left: 116px; right: 26px; top: 72px; bottom: 62px; overflow: hidden; padding: 34px 38px; color: #fff; border-radius: 6px; background: linear-gradient(135deg, #111a3d, #24366e); box-shadow: 0 8px 20px rgba(17,26,61,.28), 0 22px 50px rgba(17,26,61,.28); }
.pv-slide::after { content: ""; position: absolute; width: 250px; height: 250px; right: -80px; bottom: -110px; border-radius: 50%; background: linear-gradient(135deg, #ff7259, #ffc24b); opacity: .95; }
.pv-slide::before { content: ""; position: absolute; width: 130px; height: 130px; right: 34px; bottom: -40px; border-radius: 50%; border: 1.5px dashed rgba(255,255,255,.35); z-index: 1; }
.pv-slide small { color: #7fc6ff; font-size: 8.5px; font-weight: 900; letter-spacing: .18em; }
.pv-slide h4 { position: relative; z-index: 1; max-width: 80%; margin: 12px 0 0; font-size: 25px; line-height: 1.2; letter-spacing: -.01em; }
.pv-slide .stats { position: relative; z-index: 1; display: flex; gap: 9px; margin-top: 26px; }
.pv-slide .stats span { display: grid; gap: 2px; min-width: 82px; padding: 10px 12px; border: 1px solid rgba(255,255,255,.14); border-radius: 10px; background: rgba(255,255,255,.1); backdrop-filter: blur(2px); }
.pv-slide .stats b { font-size: 15.5px; font-weight: 900; }
.pv-slide .stats u { color: #aebbe4; font-size: 8.5px; font-weight: 700; text-decoration: none; }
.pv-present { position: absolute; left: 0; right: 0; bottom: 0; display: flex; align-items: center; gap: 14px; height: 34px; padding: 0 16px; border-top: 1px solid #dce1ea; background: #fff; color: #6b7488; font-size: 10px; font-weight: 700; }
.pv-present .note { flex: 1; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; color: #9aa1b5; font-weight: 600; }
.pv-present .zoom { color: #9aa1b5; }

/* PDF — 주석 도구 + 페이지 + 코멘트 */
.pv-pdftools { flex: none; display: flex; align-items: center; gap: 6px; height: 36px; padding: 0 14px; border-bottom: 1px solid #dce1ea; background: #fff; }
.pv-pdftools b { width: 24px; height: 24px; display: grid; place-items: center; border-radius: 6px; color: #555d72; font-size: 11px; font-weight: 700; }
.pv-pdftools b.on { background: #fdeeee; color: #d94a53; }
.pv-pdftools b.hl { color: #e2b100; }
.pv-pdftools .sep { width: 1px; height: 18px; margin: 0 4px; background: #e3e7ef; }
.pv-pdftools .pg { margin-left: auto; color: #8b94a7; font-size: 10.5px; font-weight: 700; }
.pv-pdfthumbs { position: absolute; left: 0; top: 82px; bottom: 0; width: 76px; padding: 14px 12px; border-right: 1px solid #dce1ea; background: #f7f8fa; }
.pv-pdfthumbs span { position: relative; display: block; margin-bottom: 12px; }
.pv-pdfthumbs i { display: block; height: 62px; border: 1px solid #d2d7e1; border-radius: 3px; background:
  linear-gradient(#eef0f5 0 0) 50% 12px / 60% 3px no-repeat,
  linear-gradient(#eef0f5 0 0) 50% 22px / 72% 3px no-repeat,
  linear-gradient(#eef0f5 0 0) 50% 30px / 72% 3px no-repeat,
  linear-gradient(#eef0f5 0 0) 50% 38px / 52% 3px no-repeat, #fff; }
.pv-pdfthumbs span.on i { border: 2px solid #d94a53; box-shadow: 0 3px 8px rgba(217,74,83,.22); }
.pv-pdfthumbs small { display: block; margin-top: 3px; color: #9aa1b5; font-size: 8px; font-weight: 800; text-align: center; }
.pv-pdfpage { position: absolute; left: 100px; right: 34px; top: 100px; bottom: 26px; padding: 26px 30px; background: #fff; border-radius: 3px; box-shadow: 0 1px 2px rgba(30,39,70,.07), 0 14px 38px rgba(30,39,70,.14); }
.pv-pdfpage h4 { margin: 0 0 14px; color: #16233f; font-size: 15px; letter-spacing: .34em; text-align: center; }
.pv-pdfpage mark { padding: 1px 2px; background: linear-gradient(transparent 18%, #ffe873 18% 88%, transparent 88%); color: inherit; }
.pv-note { position: absolute; right: -14px; top: 108px; display: flex; gap: 9px; width: 178px; padding: 11px 12px; border: 1px solid #ffd9c9; border-radius: 11px; background: #fff8f3; box-shadow: 0 12px 30px rgba(30,39,70,.16); }
.pv-note i { width: 22px; height: 22px; flex: none; display: grid; place-items: center; border-radius: 50%; color: #fff; background: #e8842c; font-size: 10px; font-style: normal; font-weight: 900; }
.pv-note span { display: grid; gap: 2px; color: #7a4a20; font-size: 9px; line-height: 1.45; }
.pv-note b { color: #93521c; font-size: 9.5px; }

/* ── 목업 시그니처 애니메이션 ─────────────────────────────────────────────
   패널이 열릴 때 "AI가 일하는 그 순간" 하나만 강조한다. 패널은 hidden 토글이라
   표시될 때마다 CSS 애니메이션이 자연 재생되고, 타이핑(data-pv-type)은
   landing.js가 섹션이 화면에 보일 때만 다시 친다(pv-live는 타이핑 완료 신호).
   reduced-motion은 파일 하단 전역 블록이 일괄 무효화한다. */
@keyframes pv-rise { from { opacity: 0; transform: translateY(9px); } }
@keyframes pv-sweep { from { background-size: 0% 100%; } }
@keyframes pv-bar-rise { from { transform: scaleY(.12); opacity: .35; } }
@keyframes pv-cell-flash { 45% { background: rgba(31,158,99,.2); } }
@keyframes pv-cell-pop { 45% { background: rgba(31,158,99,.3); box-shadow: inset 0 0 0 1.5px rgba(31,158,99,.55); } }

.sheets-preview .pv-chartcard .bars i { transform-origin: bottom; animation: pv-bar-rise .8s cubic-bezier(.22,.61,.36,1) backwards; }
.sheets-preview .pv-chartcard .bars i:nth-child(1) { animation-delay: .55s; }
.sheets-preview .pv-chartcard .bars i:nth-child(2) { animation-delay: .67s; }
.sheets-preview .pv-chartcard .bars i:nth-child(3) { animation-delay: .79s; }
.sheets-preview .pv-chartcard .bars i:nth-child(4) { animation-delay: .91s; }
.sheets-preview.pv-live .pv-grid td.sel { animation: pv-cell-flash .5s ease; }
.sheets-preview.pv-live .pv-grid tr:nth-child(4) td.sel { animation-delay: .05s; }
.sheets-preview.pv-live .pv-grid tr:nth-child(5) td.sel { animation-delay: .1s; }
.sheets-preview.pv-live .pv-grid tr:nth-child(6) td.sel { animation-delay: .15s; }
.sheets-preview.pv-live .pv-grid td.selend { animation: pv-cell-pop .6s ease .2s; }

.slides-preview .pv-slide small { animation: pv-rise .45s ease .2s backwards; }
.slides-preview .pv-slide h4 { animation: pv-rise .5s ease .38s backwards; }
.slides-preview .pv-slide .stats span:nth-child(1) { animation: pv-rise .5s ease .62s backwards; }
.slides-preview .pv-slide .stats span:nth-child(2) { animation: pv-rise .5s ease .8s backwards; }
.slides-preview .pv-slide .stats span:nth-child(3) { animation: pv-rise .5s ease .98s backwards; }

.pdf-preview .pv-pdfpage mark { background-repeat: no-repeat; background-position: left center; background-size: 100% 100%; animation: pv-sweep .8s ease-out .55s backwards; }
.pdf-preview .pv-note { animation: pv-rise .5s ease 1.3s backwards; }

/* 히어로 데모 — 대화와 좌측 편집기의 동기 서사:
   질문(.25s) → 편집기에 결과가 적힘(.9~1.9s) → "적용했습니다" 답변(2s) → 요약 칩(2.45s) */
.demo-ai .chat-bubble.user { animation: pv-rise .45s ease .25s backwards; }
.demo-ai .chat-answer { animation: pv-rise .5s ease 2s backwards; }
.demo-ai .ai-action { animation: pv-rise .45s ease 2.45s backwards; }

@keyframes pv-line-write { from { transform: scaleX(0); } }
.doc-page .copy-line, .hwp-page .copy-line { transform-origin: left; }

.doc-page .doc-heading { animation: pv-rise .4s ease .9s backwards; }
.doc-page .copy-line.w90 { animation: pv-line-write .45s ease-out 1.05s backwards; }
.doc-page .copy-line.w80 { animation: pv-line-write .45s ease-out 1.25s backwards; }
.doc-page .mini-table { animation: pv-rise .4s ease 1.4s backwards; }
.doc-page .mini-table .mini-table-row:nth-child(1) { animation: pv-rise .4s ease 1.45s backwards; }
.doc-page .mini-table .mini-table-row:nth-child(2) { animation: pv-rise .4s ease 1.6s backwards; }
.doc-page .mini-table .mini-table-row:nth-child(3) { animation: pv-rise .4s ease 1.75s backwards; }

.sheet-canvas .sheet-select { animation: pv-select-in .45s ease .95s backwards; }
@keyframes pv-select-in { from { opacity: 0; transform: scale(.85); } }
.sheet-canvas .chart-card { animation: pv-rise .45s ease 1.35s backwards; }
.sheet-canvas .chart-card .bars i { transform-origin: bottom; animation: pv-bar-rise .55s cubic-bezier(.22,.61,.36,1) backwards; }
.sheet-canvas .chart-card .bars i:nth-child(1) { animation-delay: 1.5s; }
.sheet-canvas .chart-card .bars i:nth-child(2) { animation-delay: 1.6s; }
.sheet-canvas .chart-card .bars i:nth-child(3) { animation-delay: 1.7s; }
.sheet-canvas .chart-card .bars i:nth-child(4) { animation-delay: 1.8s; }

.slide-thumbs .slide-thumb:nth-child(1) { animation: pv-rise .4s ease .95s backwards; }
.slide-thumbs .slide-thumb:nth-child(2) { animation: pv-rise .4s ease 1.1s backwards; }
.slide-thumbs .slide-thumb:nth-child(3) { animation: pv-rise .4s ease 1.25s backwards; }
.slide-stage .slide-kicker { animation: pv-rise .4s ease 1s backwards; }
.slide-stage h3 { animation: pv-rise .45s ease 1.15s backwards; }
.slide-stage .slide-stat:nth-child(1) { animation: pv-rise .45s ease 1.4s backwards; }
.slide-stage .slide-stat:nth-child(2) { animation: pv-rise .45s ease 1.55s backwards; }

.hwp-page .copy-line.w90 { animation: pv-line-write .5s ease-out .95s backwards; }
.hwp-page .copy-line.w80 { animation: pv-line-write .5s ease-out 1.3s backwards; }
.hwp-page .copy-line.w65 { animation: pv-line-write .5s ease-out 1.65s backwards; }

/* ── AI 섹션 데모 영상 슬롯 — 실캡처 확보 시 media/ai-demo.mp4(+webm)만 교체 */
.ai-video { margin: 38px auto 46px; max-width: 900px; }
.ai-video-frame { position: relative; margin: 0; border-radius: 16px; overflow: hidden; border: 1px solid rgba(20,27,56,.12); box-shadow: 0 26px 70px rgba(20,27,56,.2); background: #0d1226; }
.ai-video-frame video { display: block; width: 100%; height: auto; }
.ai-video-badge { position: absolute; left: 14px; bottom: 12px; display: inline-flex; align-items: center; gap: 7px; padding: 6px 12px; border-radius: 999px; background: rgba(10,14,32,.74); color: #cfd6f2; font-size: 10px; font-weight: 800; letter-spacing: .1em; backdrop-filter: blur(6px); }
@media (max-width: 620px) { .ai-video { margin: 26px auto 34px; } .ai-video-frame { border-radius: 12px; } }
.pv-sign { position: absolute; left: 30px; right: 30px; bottom: 20px; display: flex; justify-content: space-between; padding-top: 9px; border-top: 1px solid #dfe3eb; color: #454d61; font-size: 9.5px; font-weight: 700; }

.office-companions { max-width: 1100px; margin: 16px auto 0; display: grid; grid-template-columns: 1fr 1fr 1.55fr; gap: 10px; }
.office-companions > span { display: flex; align-items: center; gap: 11px; min-height: 84px; padding: 16px 18px; border: 1px solid var(--line); border-radius: 17px; color: var(--muted); background: rgba(255,255,255,.86); font-size: 11px; }
.office-companions > span i { width: 38px; height: 38px; flex: 0 0 38px; display: grid; place-items: center; border-radius: 11px; color: #526675; background: #e7f0f5; font-size: 12px; font-style: normal; font-weight: 920; }
.office-companions > span > span { min-width: 0; display: grid; gap: 3px; }
.office-companions > span small { color: var(--muted); font-size: 11px; line-height: 1.4; }
.office-companions > span i.markdown { color: #5c45bd; background: #f0edff; }.office-companions > span strong { color: var(--ink); font-size: 13px; }
.office-companions .compatibility-note { align-items: flex-start; padding-top: 23px; }

.hwp-feature { color: #fff; background: var(--navy); }
.hwp-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.hwp-feature .section-copy { color: #aeb7cf; }
.feature-list { display: grid; gap: 14px; margin-top: 26px; }
.feature-list div { display: flex; gap: 11px; align-items: flex-start; color: #dde3f4; font-size: 15px; }
.feature-list svg { width: 19px; height: 19px; flex: none; margin-top: 3px; color: #58e6ae; }
.compat-note { margin-top: 20px; color: #7f89a6; font-size: 12px; }
.hwp-visual { position: relative; min-height: 430px; }
.paper-stack { position: absolute; inset: 0 8% 0 8%; transform: rotate(1.2deg); }
.paper-back, .paper-front { position: absolute; border-radius: 9px; }
.paper-back { inset: 28px -20px -10px 35px; border: 1px solid #445078; background: #222946; transform: rotate(4deg); }
.paper-front { inset: 0; padding: 48px 45px; color: var(--ink); background: #fff; box-shadow: 0 35px 80px rgba(0,0,0,.32); }
.file-label { position: absolute; top: -14px; left: 24px; padding: 7px 13px; border-radius: 10px; color: #fff; background: #6f8999; font-size: 11px; font-weight: 900; }
.paper-front h3 { margin: 0 0 25px; text-align: center; font-size: 16px; letter-spacing: .2em; }
.paper-title { height: 10px; width: 45%; margin: 0 auto 28px; border-radius: 8px; background: #dce5eb; }
.paper-line { height: 7px; margin: 10px 0; border-radius: 6px; background: #e8ebf0; }
.paper-line.w82 { width: 82%; }.paper-line.w68 { width: 68%; }.paper-line.w52 { width: 52%; }
.hwp-seal { position: absolute; right: 38px; bottom: 35px; width: 58px; height: 58px; display: grid; place-items: center; border: 3px double #db5d57; border-radius: 50%; color: #c84f49; font-size: 10px; font-weight: 900; transform: rotate(-9deg); }
.paper-chip { position: absolute; right: -8px; bottom: 55px; padding: 10px 14px; border: 1px solid rgba(255,255,255,.26); border-radius: 12px; color: #fff; background: rgba(25, 31, 60, .91); box-shadow: var(--shadow-sm); font-size: 11px; font-weight: 850; }

.ai-section { background: #fff; }
.ai-cards { margin-top: 48px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.ai-card { display: flex; flex-direction: column; min-height: 300px; padding: 27px 24px; border: 1px solid var(--line); border-radius: 22px; background: #fff; transition: transform .2s ease, box-shadow .2s ease; }
.ai-card:hover { transform: translateY(-5px); box-shadow: 0 20px 50px rgba(25,33,63,.09); }
.ai-card.featured { color: #fff; border-color: transparent; background: linear-gradient(145deg, #171c39, #282052); box-shadow: 0 20px 50px rgba(40, 31, 92, .18); }
.ai-tag { align-self: flex-start; padding: 5px 10px; border-radius: 999px; color: #5c47bd; background: #f2efff; font-size: 10px; font-weight: 900; }
.ai-card.featured .ai-tag { color: #e1d9ff; background: rgba(255,255,255,.1); }
.ai-card h3 { margin: 18px 0 0; font-size: 19px; }
.ai-card p { flex: 1; margin: 10px 0 0; color: var(--muted); font-size: 13px; }
.ai-card.featured p { color: #b7bfd6; }
.ai-card .best-for { margin-top: 18px; color: #939caf; font-size: 11px; font-weight: 800; }
.plain-language {
  margin-top: 24px; padding: 20px 22px; border: 1px solid #d9e5ff; border-radius: 17px;
  color: #334f7d; background: var(--surface-blue); font-size: 14px;
}
.plain-language strong { color: #244a82; }

.flow-section { overflow: hidden; background: linear-gradient(180deg, #f7f8fc, #fff); }
.flow-map { position: relative; margin-top: 58px; padding: 38px; border: 1px solid var(--line); border-radius: 28px; background: #fff; box-shadow: 0 26px 70px rgba(24,33,65,.08); }
.flow-cta { display: flex; justify-content: center; margin-top: 28px; }
.flow-line { position: absolute; left: 14%; right: 14%; top: 50%; height: 2px; background: linear-gradient(90deg, #cbdaf8, #a990ff, #cbdaf8); }
.flow-pulse { position: absolute; top: -4px; width: 10px; height: 10px; border-radius: 50%; background: #fff; box-shadow: 0 0 0 4px rgba(99,52,232,.2), 0 0 18px #9275ff; animation: flow 5s linear infinite; }
.flow-grid { position: relative; z-index: 1; display: grid; grid-template-columns: repeat(3, 1fr); gap: 48px; }
.flow-node { min-height: 220px; padding: 26px; border: 1px solid var(--line); border-radius: 20px; background: rgba(255,255,255,.97); }
.node-icon { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 13px; color: var(--purple); background: #f1eeff; }
.node-icon svg { width: 21px; height: 21px; }
.flow-node h3 { margin: 17px 0 0; font-size: 19px; }
.flow-node p { margin: 8px 0 0; color: var(--muted); font-size: 13px; }
.node-result { display: inline-flex; margin-top: 18px; padding: 5px 9px; border-radius: 8px; color: #4c6e9e; background: #f0f6ff; font-size: 10px; font-weight: 900; }

.pricing { background: var(--surface-soft); }
.price-layout { margin-top: 48px; display: grid; grid-template-columns: 1.05fr .95fr; gap: 18px; }
.price-card { padding: 38px; border: 1px solid var(--line); border-radius: 24px; background: #fff; }
.price-card.primary { position: relative; overflow: hidden; color: #fff; border-color: transparent; background: var(--navy); }
.price-card.primary::after { content: ""; position: absolute; right: -100px; top: -110px; width: 320px; height: 320px; border-radius: 50%; background: radial-gradient(circle, rgba(121,83,255,.5), transparent 68%); }
.price-kicker { position: relative; z-index: 1; color: #aeb7cf; font-size: 11px; font-weight: 900; letter-spacing: .13em; }
.price-zero { position: relative; z-index: 1; margin-top: 7px; font-size: 54px; line-height: 1; font-weight: 920; letter-spacing: -.04em; }
.price-zero small { color: #9ca6bf; font-size: 16px; letter-spacing: 0; }
.price-card h3 { margin: 0; font-size: 22px; }
.price-card > p { color: var(--muted); font-size: 14px; }
.price-list { position: relative; z-index: 1; display: grid; gap: 11px; margin: 25px 0 0; padding: 0; list-style: none; }
.price-list li { display: flex; gap: 9px; font-size: 14px; }
.price-list svg { width: 17px; height: 17px; flex: none; margin-top: 3px; color: #58e6ae; }
.price-principle { margin-top: 21px; padding: 14px 15px; border-radius: 13px; color: #5d4abb; background: #f4f1ff; font-size: 12px; font-weight: 750; }

.faq-grid { margin-top: 44px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; align-items: start; }
details { padding: 20px 21px; border: 1px solid var(--line); border-radius: 16px; background: #fff; }
details[open] { box-shadow: var(--shadow-sm); }
summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; cursor: pointer; list-style: none; font-size: 15px; font-weight: 850; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--muted); font-size: 22px; font-weight: 400; transition: transform .2s ease; }
details[open] summary::after { transform: rotate(45deg); }
details p { margin: 12px 0 0; color: var(--muted); font-size: 13px; }

.download-section { position: relative; overflow: hidden; color: #fff; text-align: center; background: linear-gradient(140deg, #10142d, #23194c 60%, #132c52); }
.download-section::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 50% 20%, rgba(99,137,255,.3), transparent 46%); }
.download-inner { position: relative; z-index: 1; }
.download-section h2 { margin: 0; font-size: clamp(34px, 4.8vw, 52px); line-height: 1.14; letter-spacing: -.045em; }
.download-section p { max-width: 590px; margin: 17px auto 0; color: #b1bad2; }
.download-buttons { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; margin-top: 30px; }
.download-status { min-height: 20px; margin-top: 15px; color: #8e99b5; font-size: 12px; }
/* Windows 첫 실행(SmartScreen) 안내. 받기 전에 읽혀야 의미가 있으므로 버튼 바로 아래에
   두되, 다운로드를 망설이게 만들면 안 되니 본문보다 한 단계 낮춘다. */
.windows-note {
  max-width: 46ch;
  margin: 14px auto 0;
  color: #7f8aa6;
  font-size: 11.5px;
  line-height: 1.55;
}
.windows-note[hidden] { display: none; }

footer { padding: 54px 0 40px; color: var(--muted); font-size: 13px; border-top: 1px solid var(--line); }
.footer-top { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 40px 28px; align-items: start; }
.footer-brand .brand { margin-bottom: 12px; }
.footer-tagline { margin: 0 0 14px; color: var(--muted); font-size: 13px; }
.footer-contact { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.footer-contact a { color: var(--muted); }
.footer-contact a:hover { color: var(--ink); }
.footer-col h3 { margin: 0 0 12px; color: var(--ink); font-size: 13px; font-weight: 700; letter-spacing: -.01em; }
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.footer-col a { color: var(--muted); }
.footer-col a:hover { color: var(--ink); }
.footer-col a em { display: block; font-style: normal; color: var(--muted-2); font-size: 11px; margin-top: 1px; }
.footer-note { color: var(--muted-2); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  margin-top: 34px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 12px; color: var(--muted-2); }
@media (max-width: 860px) {
  .footer-top { grid-template-columns: 1fr 1fr; gap: 30px 20px; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 520px) { .footer-top { grid-template-columns: 1fr; } }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .65s ease, transform .65s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@keyframes scene-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }
@keyframes tab-progress { from { width: 0; } to { width: calc(100% - 20px); } }
@keyframes blink { 50% { opacity: 0; } }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-7px); } }
@keyframes flow { from { left: 0; } to { left: calc(100% - 10px); } }

@media (max-width: 1040px) {
  .hero { min-height: auto; }
  .hero-layout { grid-template-columns: 1fr; }
  /* grid 에서 margin:auto 는 stretch 를 무력화해 fit-content 로 접힌다(342px 붕괴 버그).
     width:100% 를 명시해 max-width 까지 늘어나게 한다. */
  .hero-copy-block { width: 100%; max-width: 760px; text-align: center; margin: 0 auto; }
  .hero-actions, .trust-row { justify-content: center; }
  .product-demo { width: 100%; max-width: 800px; margin: 0 auto; }
  .proof-grid { grid-template-columns: repeat(2, 1fr); }
  .proof-item:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .proof-item:nth-child(4) { border-top: 1px solid var(--line); }
  .office-product-panel { grid-template-columns: .95fr 1.05fr; }
  .office-product-copy { padding: 44px 38px; }
  .ai-cards { grid-template-columns: repeat(2, 1fr); }
  .hwp-layout { gap: 40px; }
}

@media (max-width: 820px) {
  .nav > a:not(.btn):not(.lang-switch) { display: none; }
  .office-tabs { grid-template-columns: repeat(2, 1fr); }
  .office-product-panel { grid-template-columns: 1fr; }
  .office-preview { min-height: 420px; border-top: 1px solid var(--line); border-left: 0; }
  .office-companions { grid-template-columns: 1fr 1fr; }
  .office-companions .compatibility-note { grid-column: 1 / -1; }
  .hwp-layout, .price-layout { grid-template-columns: 1fr; }
  .hwp-visual { min-height: 390px; }
  .flow-line { display: none; }
  .flow-grid { grid-template-columns: 1fr; gap: 12px; }
  .flow-node { min-height: 0; }
  .faq-grid { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .wrap { width: min(100% - 28px, var(--max)); }
  .topbar-inner { height: 60px; }
  .brand { gap: 8px; font-size: 18px; }
  .brand-mark { width: 30px; height: 30px; flex-basis: 30px; }
  .nav { gap: 7px; }
  .lang-switch { padding: 2px; }
  .lang-switch a { padding: 3px 6px; font-size: 10px; }
  .nav .btn { min-height: 38px; padding: 8px 11px; font-size: 11px; }
  .hero { padding: 70px 0 92px; }
  .hero h1 { font-size: 43px; }
  .hero-copy { font-size: 16px; }
  .hero-actions .btn { width: 100%; }
  .demo-tabs { grid-template-columns: 1fr 1fr; }
  .demo-window { min-height: 440px; }
  .demo-panel { grid-template-columns: 1fr; }
  .editor-shell { border-right: 0; }
  .demo-ai { display: none; }
  .ai-composer { display: none; }
  .demo-status { right: 8px; bottom: 8px; left: auto; }
  .doc-page { width: 88%; }
  .proof-grid { grid-template-columns: 1fr; }
  .proof-item + .proof-item { border-left: 0; border-top: 1px solid var(--line); }
  section { padding: 82px 0; }
  .section-title { font-size: 34px; }
  .section-copy { font-size: 15px; }
  .office-product-copy { padding: 32px 27px; }
  .office-product-copy h3 { font-size: 28px; }
  .office-preview { min-height: 350px; }
  .office-companions { grid-template-columns: 1fr; }
  .office-companions .compatibility-note { grid-column: auto; }
  .pv-docpage { width: 92%; padding: 22px 20px 34px; }
  .pv-ribbon .pv-tools { display: none; }
  .pv-grid { font-size: 9.5px; }
  .pv-grid th:nth-child(6), .pv-grid td:nth-child(6) { display: none; }
  .pv-chartcard { width: 60%; right: 10px; bottom: 40px; }
  .slides-preview .pv-thumbs { width: 70px; padding: 12px 9px; }
  .slides-preview .pv-slide { left: 90px; right: 16px; top: 66px; bottom: 48px; padding: 22px; }
  .pv-slide h4 { font-size: 19px; max-width: 100%; }
  .pv-slide .stats span { min-width: 64px; padding: 8px 9px; }
  .pv-present .note { display: none; }
  .pv-pdfthumbs { width: 60px; padding: 12px 9px; }
  .pv-pdfpage { left: 78px; right: 16px; top: 96px; padding: 18px 16px; }
  .pv-note { position: static; width: auto; margin-top: 12px; }
  .pv-sign { position: static; margin-top: 14px; }
  .pv-file { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
  .ai-cards { grid-template-columns: 1fr; }
  .hwp-visual { min-height: 330px; }
  .paper-stack { inset: 0 3%; }
  .paper-front { padding: 38px 28px; }
  .flow-map { padding: 16px; }
  .price-card { padding: 28px 24px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .reveal { opacity: 1; transform: none; }
}