/* 可圈办公 · Premium marketing (M365 / Workspace / WPS class) */
:root {
  /* Brand DNA — Clavue ring: blue → cyan */
  --brand: #1d4fff;
  --brand-deep: #153ed6;
  --brand-cyan: #22d3ee;
  --brand-soft: #e8f0ff;
  --brand-tint: #f5f8ff;
  --writer: #1d4fff;
  --calc: #389e0d;
  --impress: #fa541c;
  --pdf: #cf1322;
  --ai: #722ed1;
  --draw: #faad14;
  --text: #1f2329;
  --muted: #646a73;
  --line: #e5e6eb;
  --bg: #ffffff;
  --bg-soft: #f7f8fa;
  --bg-dark: #0b1220;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow: 0 20px 50px rgba(15, 23, 42, 0.1);
  --shadow-sm: 0 8px 24px rgba(15, 23, 42, 0.07);
  --max: 1200px;
  --font: "SF Pro Display", "Segoe UI", "PingFang SC", "PingFang TC",
    "Microsoft YaHei", "Hiragino Sans", "Noto Sans KR", system-ui, sans-serif;
  --font-ar: "Segoe UI", "Noto Sans Arabic", Tahoma, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
body[dir="rtl"] { font-family: var(--font-ar); }
a { color: var(--brand-deep); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }
.wrap { width: min(var(--max), calc(100% - 2.5rem)); margin: 0 auto; }

/* ========== Top bar + Header ========== */
.topbar {
  background: linear-gradient(90deg, #0b1220, #132038 50%, #0b1220);
  color: #9fb0cc;
  font-size: 12px;
}
.topbar .wrap {
  display: flex; justify-content: space-between; align-items: center;
  min-height: 36px; gap: 1rem;
}
.topbar a { color: #c5d4ea; text-decoration: none; }
.topbar a:hover { color: #fff; }
.topbar .pill {
  display: inline-flex; align-items: center; gap: .35rem;
  background: rgba(29, 79, 255, 0.2); color: #9ec5ff;
  border: 1px solid rgba(34, 211, 238, 0.25);
  border-radius: 999px; padding: .15rem .55rem; font-weight: 600;
}

.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: saturate(1.4) blur(16px);
  border-bottom: 1px solid rgba(229, 230, 235, 0.9);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; min-height: 68px;
}
.brand {
  display: flex; align-items: center; gap: .7rem;
  color: var(--text); font-weight: 750; font-size: 1.08rem;
  text-decoration: none !important; white-space: nowrap;
}
.brand img, .brand .brand-mark {
  width: 36px; height: 36px; border-radius: 10px;
  box-shadow: 0 4px 14px rgba(29, 79, 255, 0.22);
}
.brand .brand-word {
  height: 22px; width: auto; display: block;
}
.brand .brand-text { letter-spacing: -0.02em; }
.nav-center {
  display: flex; align-items: center; gap: .1rem;
  list-style: none; margin: 0; padding: 0;
}
.nav-center > li { position: relative; }
.nav-center > li > a,
.nav-center > li > button {
  display: inline-flex; align-items: center; gap: .3rem;
  padding: .55rem .8rem; border: 0; background: transparent;
  color: var(--text); font: inherit; font-size: .93rem; font-weight: 550;
  cursor: pointer; border-radius: 10px; text-decoration: none !important;
}
.nav-center > li > a:hover,
.nav-center > li > button:hover,
.nav-center > li > a.active {
  background: var(--brand-soft); color: var(--brand-deep);
}
.mega {
  display: none; position: absolute; top: calc(100% + 8px); left: 50%;
  transform: translateX(-50%);
  width: min(640px, 92vw); background: #fff; border: 1px solid var(--line);
  border-radius: 16px; box-shadow: var(--shadow); padding: 1rem;
  grid-template-columns: 1fr 1fr; gap: .4rem .8rem;
}
.nav-center > li:hover .mega,
.nav-center > li:focus-within .mega { display: grid; }
.mega a {
  display: flex; gap: .75rem; align-items: flex-start;
  padding: .7rem .75rem; border-radius: 12px;
  color: var(--text); text-decoration: none !important; font-size: .9rem;
}
.mega a:hover { background: var(--brand-tint); }
.mega a img {
  width: 40px; height: 40px; border-radius: 10px; flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}
.mega a strong { display: block; font-size: .95rem; }
.mega a small { display: block; color: var(--muted); font-size: .78rem; margin-top: .15rem; line-height: 1.4; }
.nav-right { display: flex; align-items: center; gap: .55rem; flex-wrap: wrap; }
.lang-select {
  appearance: none; border: 1px solid var(--line); background: #fff;
  border-radius: 999px; padding: .42rem .9rem; font: inherit; font-size: .82rem;
  color: var(--muted); cursor: pointer;
}

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .45rem;
  border-radius: 999px; padding: .68rem 1.25rem; font-size: .93rem; font-weight: 650;
  border: 1px solid transparent; cursor: pointer; text-decoration: none !important;
  transition: .16s ease; white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--brand), #3b6bff 55%, #2a9ef0);
  color: #fff !important;
  box-shadow: 0 10px 28px rgba(29, 79, 255, 0.28);
}
.btn-primary:hover { filter: brightness(1.04); }
.btn-dark { background: var(--text); color: #fff !important; }
.btn-outline {
  background: #fff; color: var(--text) !important; border-color: var(--line);
}
.btn-outline:hover { border-color: #c9cdd4; background: var(--bg-soft); }
.btn-ghost {
  background: rgba(255,255,255,.12); color: #fff !important; border-color: rgba(255,255,255,.22);
}
.btn-lg { padding: .9rem 1.55rem; font-size: 1.02rem; }
.btn-sm { padding: .42rem .9rem; font-size: .82rem; }

/* ========== Hero ========== */
.hero {
  position: relative;
  padding: 3.6rem 0 2.8rem;
  overflow: hidden;
  background:
    radial-gradient(1000px 480px at 90% -10%, rgba(34, 211, 238, 0.18), transparent 55%),
    radial-gradient(900px 520px at 0% 0%, rgba(29, 79, 255, 0.16), transparent 50%),
    linear-gradient(180deg, #f8faff 0%, #ffffff 72%);
}
.hero-grid {
  display: grid; grid-template-columns: 1.05fr 1.05fr; gap: 2.4rem; align-items: center;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: .5rem;
  color: var(--brand-deep); font-weight: 700; font-size: .8rem; letter-spacing: .04em;
  text-transform: uppercase;
  background: var(--brand-soft); padding: .35rem .75rem; border-radius: 999px;
}
.hero h1 {
  margin: .95rem 0 .75rem; font-size: clamp(2.15rem, 4.8vw, 3.35rem);
  line-height: 1.1; letter-spacing: -.035em; font-weight: 780;
  background: linear-gradient(120deg, #0f172a 10%, #1d4fff 55%, #0891b2 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .lead {
  color: var(--muted); font-size: 1.08rem; max-width: 36rem; margin: 0 0 1.35rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: .7rem; margin-bottom: 1.15rem; }
.platform-row { display: flex; flex-wrap: wrap; gap: .45rem; }
.platform-chip {
  border: 1px solid var(--line); background: rgba(255,255,255,.9); border-radius: 999px;
  padding: .38rem .8rem; font-size: .8rem; color: var(--muted); font-weight: 600;
  text-decoration: none !important;
}
.platform-chip:hover { color: var(--brand-deep); border-color: #c7d2fe; background: #fff; }

.hero-stage {
  position: relative;
  border-radius: 22px;
  padding: .55rem;
  background: linear-gradient(145deg, rgba(29,79,255,.35), rgba(34,211,238,.35));
  box-shadow: var(--shadow);
}
.hero-stage-inner {
  border-radius: 18px; overflow: hidden; background: #0b1220;
  border: 1px solid rgba(255,255,255,.08);
}
.hero-stage img {
  width: 100%; height: auto; display: block;
  aspect-ratio: 16/10; object-fit: cover; object-position: top center;
}
.hero-float {
  position: absolute; right: -10px; bottom: -14px;
  display: flex; gap: .45rem; flex-wrap: wrap; max-width: 70%;
  justify-content: flex-end;
}
.hero-float img {
  width: 48px; height: 48px; border-radius: 12px;
  box-shadow: 0 10px 24px rgba(15,23,42,.2); background: #fff;
  border: 2px solid #fff;
}

/* ========== Logo strip ========== */
.logo-strip {
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--line);
  background: #fff;
}
.logo-strip .wrap {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
}
.logo-strip .label {
  color: var(--muted); font-size: .82rem; font-weight: 650; letter-spacing: .04em;
  text-transform: uppercase;
}
.product-icons {
  display: flex; flex-wrap: wrap; gap: .55rem; align-items: center;
}
.product-icons a, .product-icons span {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .35rem .55rem .35rem .35rem; border-radius: 999px;
  border: 1px solid var(--line); background: var(--bg-soft);
  color: var(--text); font-size: .8rem; font-weight: 600;
  text-decoration: none !important;
}
.product-icons img { width: 28px; height: 28px; border-radius: 8px; }

/* ========== Sections ========== */
section { padding: 4.2rem 0; }
.section-soft { background: var(--bg-soft); }
.section-tint {
  background:
    radial-gradient(700px 280px at 10% 0%, rgba(29,79,255,.08), transparent 60%),
    var(--brand-tint);
}
.section-dark {
  background:
    radial-gradient(800px 320px at 80% 0%, rgba(34,211,238,.12), transparent 55%),
    linear-gradient(180deg, #0d1526, #0b1220);
  color: #fff;
}
.section-dark .muted, .section-dark p { color: #a8b3c7; }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 2.1rem; }
.section-head h2 {
  margin: 0 0 .55rem; font-size: clamp(1.55rem, 2.9vw, 2.15rem);
  letter-spacing: -.025em; line-height: 1.22; font-weight: 760;
}
.section-head p { margin: 0; color: var(--muted); font-size: 1.04rem; }
.section-dark .section-head p { color: #a8b3c7; }

.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.2rem; }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.25rem 1.3rem; transition: .18s ease; height: 100%;
}
.card:hover {
  box-shadow: var(--shadow-sm); border-color: #d0d7e4;
  transform: translateY(-3px);
}
.section-dark .card {
  background: rgba(255,255,255,.04); border-color: rgba(255,255,255,.08); color: #fff;
}
.card h3 { margin: 0 0 .4rem; font-size: 1.04rem; letter-spacing: -.01em; }
.card p { margin: 0; color: var(--muted); font-size: .93rem; }
.section-dark .card p { color: #a8b3c7; }
.card .link {
  display: inline-block; margin-top: .9rem; font-size: .88rem; font-weight: 700;
  color: var(--brand-deep); text-decoration: none !important;
}
.section-dark .card .link { color: var(--brand-cyan); }
.card-icon {
  width: 48px; height: 48px; border-radius: 12px; margin-bottom: .85rem;
  box-shadow: var(--shadow-sm);
}
.card-media {
  border-radius: 12px; overflow: hidden; margin: -.35rem -.4rem 1rem;
  border: 1px solid var(--line); background: #0b1220;
}
.card-media img {
  width: 100%; height: 150px; object-fit: cover; object-position: top center;
}

/* Feature split */
.feature-split {
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 2rem; align-items: center;
  margin: 1.8rem 0;
}
.feature-split.reverse { direction: rtl; }
.feature-split.reverse > * { direction: ltr; }
body[dir="rtl"] .feature-split.reverse { direction: ltr; }
.feature-copy h3 { margin: 0 0 .55rem; font-size: 1.45rem; letter-spacing: -.02em; }
.feature-copy p { margin: 0 0 .9rem; color: var(--muted); font-size: 1.02rem; }
.feature-copy ul {
  margin: 0; padding: 0; list-style: none;
}
.feature-copy li {
  position: relative; padding: .45rem 0 .45rem 1.4rem; color: var(--muted);
}
.feature-copy li::before {
  content: ""; position: absolute; left: 0; top: .85rem;
  width: .65rem; height: .65rem; border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), var(--brand-cyan));
}
.shot-frame {
  border-radius: 18px; overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  background: #0b1220;
}
.shot-frame img {
  width: 100%; height: auto; display: block;
  aspect-ratio: 16/10; object-fit: cover; object-position: top center;
}

/* Product suite showcase */
.suite-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem;
}
.suite-card {
  position: relative; overflow: hidden;
  border-radius: var(--radius-lg); border: 1px solid var(--line);
  background: #fff; padding: 1.3rem; min-height: 210px;
  transition: .18s ease;
}
.suite-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.suite-card .suite-ico {
  width: 56px; height: 56px; border-radius: 14px; margin-bottom: .9rem;
  box-shadow: var(--shadow-sm);
}
.suite-card h3 { margin: 0 0 .35rem; font-size: 1.12rem; }
.suite-card p { margin: 0; color: var(--muted); font-size: .92rem; }
.suite-card .glow {
  position: absolute; right: -30px; top: -30px; width: 120px; height: 120px;
  border-radius: 50%; opacity: .18; filter: blur(2px);
}
.suite-card.writer .glow { background: var(--writer); }
.suite-card.calc .glow { background: var(--calc); }
.suite-card.impress .glow { background: var(--impress); }
.suite-card.pdf .glow { background: var(--pdf); }
.suite-card.ai .glow { background: var(--ai); }
.suite-card.draw .glow { background: var(--draw); }

/* Family / icon wall */
.family-panel {
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 1.5rem; align-items: center;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 1.4rem; box-shadow: var(--shadow-sm);
}
.family-panel img.family {
  width: 100%; border-radius: 14px; border: 1px solid var(--line);
}
.icon-wall {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: .7rem;
}
.icon-wall .cell {
  display: flex; flex-direction: column; align-items: center; gap: .4rem;
  padding: .75rem .4rem; border-radius: 14px; border: 1px solid var(--line);
  background: var(--bg-soft); text-align: center;
}
.icon-wall img { width: 52px; height: 52px; border-radius: 12px; }
.icon-wall span { font-size: .72rem; color: var(--muted); font-weight: 650; }

.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin-top: 1.6rem;
}
.stat {
  text-align: center; padding: 1.25rem; border-radius: var(--radius);
  background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.08);
}
.stat b {
  display: block; font-size: 1.7rem; margin-bottom: .2rem;
  background: linear-gradient(90deg, #fff, var(--brand-cyan));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat span { color: #a8b3c7; font-size: .88rem; }

.cta-band {
  background: linear-gradient(120deg, #153ed6, #1d4fff 45%, #0ea5e9 100%);
  color: #fff; border-radius: var(--radius-lg); padding: 2.3rem;
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  flex-wrap: wrap; box-shadow: 0 18px 40px rgba(29, 79, 255, 0.28);
}
.cta-band h2 { margin: 0 0 .35rem; font-size: 1.55rem; }
.cta-band p { margin: 0; opacity: .92; }
.cta-band .btn-dark { background: #fff; color: var(--brand-deep) !important; }

/* Gallery strip */
.gallery {
  display: grid; grid-template-columns: 1.4fr 1fr; gap: 1rem;
}
.gallery .shot-frame.tall img { aspect-ratio: 4/3; }
.gallery-side { display: grid; gap: 1rem; }
.gallery-side .shot-frame img { aspect-ratio: 16/10; }

/* Inner pages */
.page-hero {
  padding: 2.8rem 0 1.3rem;
  background:
    radial-gradient(600px 220px at 90% 0%, rgba(34,211,238,.12), transparent 60%),
    linear-gradient(180deg, var(--brand-tint), #fff);
  border-bottom: 1px solid var(--line);
}
.page-hero h1 { margin: 0 0 .4rem; font-size: clamp(1.7rem, 3vw, 2.3rem); letter-spacing: -.02em; }
.page-hero p { margin: 0; color: var(--muted); max-width: 48rem; }
.prose { max-width: 760px; margin: 0 auto; padding: 2rem 0 3rem; }
.prose h2 { margin-top: 1.8rem; }
.prose p, .prose li { color: var(--muted); }
.prose code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  background: var(--bg-soft); padding: .1em .35em; border-radius: 6px; font-size: .9em;
}
.table-wrap {
  overflow: auto; border: 1px solid var(--line); border-radius: var(--radius); background: #fff;
}
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { text-align: left; padding: .85rem 1rem; border-bottom: 1px solid var(--line); }
th { background: var(--bg-soft); color: var(--muted); font-weight: 650; }
tr:last-child td { border-bottom: 0; }

.price-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.price-card {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 1.3rem; background: #fff;
  position: relative;
}
.price-card.featured {
  border-color: rgba(29,79,255,.45);
  box-shadow: 0 0 0 1px rgba(29,79,255,.15), var(--shadow-sm);
}
.price-card .badge {
  position: absolute; top: .8rem; right: .8rem; background: var(--brand-soft);
  color: var(--brand-deep); font-size: .72rem; font-weight: 750;
  padding: .2rem .5rem; border-radius: 999px;
}
.price-card h3 { margin: 0 0 .3rem; }
.price-card .amount { font-size: 1.85rem; font-weight: 780; margin: .5rem 0; letter-spacing: -.02em; }
.price-card .amount small { font-size: .9rem; color: var(--muted); font-weight: 500; }
.price-card ul { margin: 0 0 1rem; padding-left: 1.1rem; color: var(--muted); font-size: .9rem; }

.form-card {
  max-width: 430px; margin: 2rem auto 3rem; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.55rem; background: #fff; box-shadow: var(--shadow-sm);
}
.form-card label { display: block; font-size: .85rem; color: var(--muted); margin: .7rem 0 .3rem; }
.form-card input {
  width: 100%; padding: .68rem .8rem; border-radius: 11px; border: 1px solid var(--line);
  font: inherit; background: #fff;
}
.form-card input:focus { outline: 2px solid rgba(29,79,255,.3); border-color: transparent; }
.form-msg { margin-top: .8rem; padding: .65rem .75rem; border-radius: 10px; font-size: .88rem; display: none; }
.form-msg.show { display: block; }
.form-msg.ok { background: #e8fff3; color: #067647; }
.form-msg.err { background: #ffe8e8; color: #b42318; }

/* Footer */
.site-footer {
  background: var(--bg-dark); color: #c5cbd3; padding: 3.2rem 0 1.6rem; font-size: .9rem;
}
.footer-grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr; gap: 1.5rem;
}
.site-footer h4 { margin: 0 0 .7rem; color: #fff; font-size: .92rem; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin: .4rem 0; }
.site-footer a { color: #aeb6c0; text-decoration: none; }
.site-footer a:hover { color: #fff; }
.footer-brand {
  display: flex; gap: .7rem; align-items: center; margin-bottom: .75rem;
  color: #fff; font-weight: 750;
}
.footer-brand img {
  width: 34px; height: 34px; border-radius: 9px;
  box-shadow: 0 6px 16px rgba(29,79,255,.35);
}
.legal {
  margin-top: 2rem; padding-top: 1.2rem; border-top: 1px solid #243044;
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  font-size: .8rem; color: #8b939e;
}

.menu-toggle {
  display: none; border: 1px solid var(--line); background: #fff;
  border-radius: 10px; padding: .45rem .7rem; font: inherit; cursor: pointer;
}

@media (max-width: 1020px) {
  .hero-grid, .feature-split, .feature-split.reverse, .family-panel,
  .grid-4, .grid-3, .suite-grid, .price-grid, .stats, .footer-grid, .gallery {
    grid-template-columns: 1fr 1fr;
  }
  .nav-center { display: none; }
  .menu-toggle { display: inline-flex; }
  .nav-center.open {
    display: flex; flex-direction: column; position: absolute; left: 0; right: 0;
    top: 68px; background: #fff; border-bottom: 1px solid var(--line);
    padding: .5rem; box-shadow: var(--shadow); z-index: 50;
  }
  .mega {
    position: static; transform: none; width: 100%; box-shadow: none; border: 0; padding: .2rem .5rem .5rem 1rem;
  }
  .nav-center > li:hover .mega { display: none; }
  .nav-center > li.open .mega { display: grid; grid-template-columns: 1fr; }
  .hero-float { display: none; }
}
@media (max-width: 680px) {
  .hero-grid, .grid-4, .grid-3, .grid-2, .suite-grid, .price-grid, .stats,
  .footer-grid, .family-panel, .gallery, .feature-split, .feature-split.reverse {
    grid-template-columns: 1fr;
  }
  .icon-wall { grid-template-columns: repeat(3, 1fr); }
  .nav-right .btn-outline { display: none; }
  .hero h1 { font-size: 1.9rem; }
}