:root {
  --bg: #f6f8fc;
  --s1: #ffffff;
  --s2: #f0f4fa;
  --text: #172033;
  --muted: #667085;
  --border: #dce3ee;
  --gold: #f59e0b;
  --gold2: #b96805;
  --coral: #f05d3d;
  --teal: #0f9f8f;
  --danger: #dc4455;
  --display: "Playfair Display", Georgia, serif;
  --sans: "DM Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "DM Mono", ui-monospace, SFMono-Regular, Consolas, monospace;
  --r: 16px;
  --shadow-sm: 0 2px 8px rgba(31, 42, 68, .06);
  --shadow: 0 16px 45px rgba(31, 42, 68, .10);
  --focus: 0 0 0 4px rgba(15, 159, 143, .16);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  min-height: 100vh;
  background:
    radial-gradient(circle at 8% 0%, rgba(245,158,11,.10), transparent 28rem),
    radial-gradient(circle at 95% 12%, rgba(15,159,143,.09), transparent 30rem),
    var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .28;
  background-image: linear-gradient(rgba(23,32,51,.025) 1px, transparent 1px), linear-gradient(90deg, rgba(23,32,51,.025) 1px, transparent 1px);
  background-size: 28px 28px;
}
a { color: inherit; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button:focus-visible, a:focus-visible, [tabindex]:focus-visible { outline: none; box-shadow: var(--focus); }

nav {
  position: sticky;
  top: 0;
  z-index: 50;
  min-height: 72px;
  padding: 0 clamp(18px, 4vw, 56px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: rgba(255,255,255,.86);
  border-bottom: 1px solid rgba(220,227,238,.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}
.nav-logo { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; }
.nav-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  color: #fff;
  font-family: var(--display);
  font-size: 21px;
  font-weight: 700;
  background: linear-gradient(145deg, var(--gold), var(--coral));
  box-shadow: 0 8px 20px rgba(240,93,61,.22);
}
.nav-name, .footer-logo { font-family: var(--display); font-size: 20px; font-weight: 700; letter-spacing: -.35px; }
.nav-name em, .footer-logo em { color: var(--teal); font-style: normal; }
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-link {
  padding: 9px 12px;
  border-radius: 9px;
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
  font-weight: 650;
  transition: color .16s, background .16s;
}
.nav-link:hover, .nav-link.active { color: var(--text); background: var(--s2); }
.nav-cta {
  margin-left: 6px;
  padding: 10px 15px;
  border-radius: 10px;
  color: #fff;
  background: linear-gradient(135deg, var(--teal), #08796e);
  box-shadow: 0 7px 18px rgba(15,159,143,.18);
  text-decoration: none;
  font-size: 13px;
  font-weight: 750;
}
.nav-ham { display: none; border: 0; background: transparent; color: var(--text); font-size: 23px; cursor: pointer; }
.nav-mobile {
  display: none;
  position: absolute;
  top: 64px;
  left: 14px;
  right: 14px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #fff;
  box-shadow: var(--shadow);
}
.nav-mobile.open { display: grid; }

.hero {
  position: relative;
  z-index: 1;
  max-width: 980px;
  margin: 0 auto;
  padding: 74px 24px 44px;
  text-align: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  padding: 7px 12px;
  border: 1px solid rgba(15,159,143,.22);
  border-radius: 999px;
  background: rgba(255,255,255,.75);
  color: #08796e;
  font-size: 12px;
  font-weight: 750;
  box-shadow: var(--shadow-sm);
}
.hero-badge::before { content: "✓"; display: grid; place-items: center; width: 18px; height: 18px; border-radius: 50%; color: #fff; background: var(--teal); font-size: 11px; }
.hero-h1 {
  max-width: 820px;
  margin: 0 auto 18px;
  font-family: var(--display);
  font-size: clamp(40px, 6vw, 68px);
  line-height: 1.04;
  letter-spacing: -2.2px;
}
.hero-h1 span {
  color: transparent;
  background: linear-gradient(105deg, var(--gold2), var(--coral) 48%, var(--teal));
  -webkit-background-clip: text;
  background-clip: text;
}
.hero-sub { max-width: 650px; margin: 0 auto; color: var(--muted); font-size: clamp(15px, 2vw, 18px); line-height: 1.7; }
.hero-trust { margin-top: 24px; display: flex; justify-content: center; gap: 9px; flex-wrap: wrap; }
.hero-trust span { padding: 7px 10px; border: 1px solid var(--border); border-radius: 8px; background: rgba(255,255,255,.72); color: var(--muted); font-size: 11px; font-weight: 650; }

.content-section, .use-section { position: relative; z-index: 1; max-width: 1080px; margin: 0 auto; padding: 70px 24px; }
.section-kicker { margin-bottom: 9px; color: var(--teal); font-size: 11px; font-weight: 800; letter-spacing: 1.2px; text-transform: uppercase; }
.content-section > h2, .use-section h2 { max-width: 740px; font-family: var(--display); font-size: clamp(28px, 4vw, 42px); line-height: 1.15; letter-spacing: -.8px; }
.section-lead { max-width: 680px; margin-top: 14px; color: var(--muted); font-size: 15px; line-height: 1.7; }
.explain-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 30px; }
.explain-card { padding: 26px; border: 1px solid var(--border); border-radius: 18px; background: rgba(255,255,255,.9); box-shadow: var(--shadow-sm); }
.explain-icon { width: 44px; height: 44px; display: grid; place-items: center; margin-bottom: 18px; border-radius: 12px; background: var(--s2); font-size: 22px; }
.explain-card h3 { margin-bottom: 9px; font-size: 18px; }
.explain-card p { color: var(--muted); font-size: 13px; line-height: 1.7; }
.explain-card a { display: inline-block; margin-top: 17px; color: var(--teal); font-size: 12px; font-weight: 800; text-decoration: none; }
.use-section { display: grid; grid-template-columns: .85fr 1.15fr; align-items: start; gap: 50px; }
.use-list { border-top: 1px solid var(--border); }
.use-list > div { display: grid; grid-template-columns: 150px 1fr; gap: 18px; padding: 17px 0; border-bottom: 1px solid var(--border); }
.use-list strong { font-size: 13px; }
.use-list span { color: var(--muted); font-size: 12px; line-height: 1.55; }

.steps-bar {
  position: sticky;
  top: 88px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(255,255,255,.92);
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(12px);
}
.s-item { display: flex; align-items: center; gap: 7px; color: #98a2b3; font-size: 12px; font-weight: 700; }
.s-num { width: 27px; height: 27px; display: grid; place-items: center; border: 1px solid var(--border); border-radius: 50%; background: var(--s2); font-size: 11px; }
.s-item.active { color: var(--gold2); }
.s-item.active .s-num { color: #fff; border-color: var(--gold); background: linear-gradient(135deg, var(--gold), var(--coral)); box-shadow: 0 5px 13px rgba(245,158,11,.24); }
.s-item.done { color: var(--teal); }
.s-item.done .s-num { color: #fff; border-color: var(--teal); background: var(--teal); }
.s-sep { margin: 0 12px; color: #c9d1dd; }

.step-sec {
  display: none;
  min-height: 450px;
  padding: clamp(22px, 4vw, 40px);
  border: 1px solid var(--border);
  border-radius: 20px;
  background: rgba(255,255,255,.94);
  box-shadow: var(--shadow);
}
.step-sec.on { display: block; animation: step-in .26s ease both; }
@keyframes step-in { from { opacity: 0; transform: translateY(8px); } }
.s-eye { margin-bottom: 7px; color: var(--teal); font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: 1.25px; }
.s-title { margin-bottom: 8px; font-family: var(--display); font-size: clamp(25px, 3vw, 34px); font-weight: 700; letter-spacing: -.5px; }
.s-sub { margin-bottom: 26px; color: var(--muted); font-size: 14px; }

.drop-z {
  position: relative;
  padding: 52px 24px;
  border: 2px dashed #c7d2e2;
  border-radius: 18px;
  background: linear-gradient(145deg, #fbfcff, #f3f7fb);
  text-align: center;
  cursor: pointer;
  transition: border-color .18s, background .18s, transform .18s, box-shadow .18s;
}
.drop-z:hover, .drop-z.over { border-color: var(--teal); background: #effbf9; transform: translateY(-2px); box-shadow: 0 12px 30px rgba(15,159,143,.10); }
.drop-ico { margin-bottom: 12px; font-size: 42px; filter: drop-shadow(0 6px 8px rgba(31,42,68,.1)); }
.drop-ttl { font-size: 17px; font-weight: 750; }
.drop-sub { margin-top: 6px; color: var(--muted); font-size: 12px; }

.card, .fcard, .aside-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #fff;
  box-shadow: var(--shadow-sm);
}
.card { padding: 20px; }
.card-label, .aside-ttl { margin-bottom: 13px; color: #344054; font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: .85px; }
.fcard { padding: 15px 17px; }
.fhead { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.fname { flex: 1; overflow: hidden; font-size: 13px; font-weight: 750; text-overflow: ellipsis; white-space: nowrap; }
.frem { border: 0; background: transparent; color: var(--muted); cursor: pointer; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 11px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--s2);
  color: #344054;
  font-size: 12px;
  cursor: pointer;
  transition: .16s ease;
}
.chip:hover { border-color: #bac7d8; background: #fff; }
.chip.selected { color: #8a5200; border-color: #f4c76a; background: #fff8e7; box-shadow: 0 4px 12px rgba(245,158,11,.10); }
.chip-check { width: 18px; height: 18px; display: grid; place-items: center; border: 1px solid #c7d2e2; border-radius: 5px; background: #fff; font-size: 11px; font-weight: 800; }
.chip.selected .chip-check { color: #fff; border-color: var(--gold); background: var(--gold); }
.chip-meta { color: var(--muted); font-family: var(--mono); font-size: 10px; }
.sheet-select-hint { margin-bottom: 14px; padding: 10px 13px; border-radius: 9px; color: #8a5200; background: #fff8e7; font-size: 12px; }

.col-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 9px; }
.col-chip { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 11px 12px; border: 1px solid var(--border); border-radius: 9px; background: var(--s2); cursor: pointer; transition: .16s ease; }
.col-chip:hover { border-color: #aebdce; background: #fff; }
.col-chip.selected { color: #fff; border-color: var(--teal); background: linear-gradient(135deg, var(--teal), #08796e); box-shadow: 0 6px 15px rgba(15,159,143,.18); }
.cn { overflow: hidden; font-size: 12px; font-weight: 700; text-overflow: ellipsis; white-space: nowrap; }
.cb { flex-shrink: 0; padding: 2px 6px; border-radius: 999px; background: rgba(255,255,255,.7); color: var(--muted); font-family: var(--mono); font-size: 9px; }
.col-chip.selected .cb { color: #fff; background: rgba(255,255,255,.18); }
.key-map-grid { display: grid; gap: 9px; }
.key-map-row { display: grid; grid-template-columns: minmax(180px, 1fr) minmax(180px, 1fr); align-items: center; gap: 14px; padding: 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--s2); }
.key-map-row > span { min-width: 0; display: grid; gap: 2px; }
.key-map-row strong { overflow: hidden; font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
.key-map-row small { overflow: hidden; color: var(--muted); font-size: 9px; text-overflow: ellipsis; white-space: nowrap; }
.key-map-row select { width: 100%; min-height: 38px; padding: 7px 32px 7px 10px; border: 1px solid #c7d2e2; border-radius: 8px; background: #fff; color: var(--text); font-size: 12px; }
.key-map-row select:focus { outline: none; border-color: var(--teal); box-shadow: var(--focus); }

.mtypes { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.mopt { position: relative; padding: 16px; border: 1px solid var(--border); border-radius: 12px; background: var(--s2); cursor: pointer; transition: .16s ease; }
.mopt:hover { transform: translateY(-2px); border-color: #b9c6d7; background: #fff; }
.mopt.selected { border-color: var(--teal); background: #effbf9; box-shadow: 0 0 0 2px rgba(15,159,143,.10); }
.mopt input { position: absolute; opacity: 0; pointer-events: none; }
.mopt-ico { margin-bottom: 9px; font-size: 24px; }
.mopt-title { margin-bottom: 5px; font-size: 13px; font-weight: 800; }
.mopt-sub { color: var(--muted); font-size: 11px; line-height: 1.5; }

.out-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.col-pool, .sort-list { max-height: 380px; overflow: auto; padding-right: 3px; }
.pitem, .sort-item { display: flex; align-items: center; gap: 9px; min-height: 50px; margin-bottom: 7px; padding: 8px 10px; border: 1px solid var(--border); border-radius: 9px; background: var(--s2); }
.pitem { justify-content: space-between; cursor: pointer; }
.pitem:hover { border-color: var(--teal); background: #effbf9; }
.pitem-name, .sort-nm { font-size: 12px; font-weight: 700; }
.pitem-src, .sort-src { color: var(--muted); font-family: var(--mono); font-size: 9px; }
.pitem-add { width: 24px; height: 24px; display: grid; place-items: center; border-radius: 7px; color: var(--teal); background: rgba(15,159,143,.12); font-weight: 800; }
.sort-item { cursor: grab; background: #fff; }
.sort-item.dragging { opacity: .45; }
.sort-item.dt { border-top: 2px solid var(--teal); }
.sort-item.db { border-bottom: 2px solid var(--teal); }
.drag-h { color: #98a2b3; }
.sort-n { width: 23px; height: 23px; display: grid; place-items: center; flex-shrink: 0; border-radius: 6px; color: #fff; background: #344054; font-size: 10px; font-weight: 800; }
.sort-nm { flex: 1; }
.sort-rm { width: 32px; height: 32px; flex-shrink: 0; border: 0; background: transparent; color: #98a2b3; cursor: pointer; }
.sort-rm:hover { color: var(--danger); }
.sort-actions { display: flex; align-items: center; gap: 3px; flex-shrink: 0; }
.sort-mv { width: 32px; height: 32px; display: grid; place-items: center; flex-shrink: 0; border: 1px solid var(--border); border-radius: 7px; background: #fff; color: #475467; font-size: 13px; line-height: 1; cursor: pointer; }
.sort-mv:hover:not(:disabled) { border-color: var(--teal); color: #08796e; background: #effbf9; }
.sort-mv:disabled { opacity: .3; cursor: not-allowed; }
/* Fingers need a bigger target than a mouse pointer does. */
@media (pointer: coarse) { .sort-mv, .sort-rm { width: 40px; height: 40px; } .sort-item { gap: 6px; } }
.empty-sort { padding: 40px 14px; border: 1px dashed var(--border); border-radius: 9px; color: #98a2b3; text-align: center; font-size: 12px; }

.nav-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--border); }
.btn { min-height: 42px; padding: 10px 16px; border: 1px solid transparent; border-radius: 10px; font-size: 12px; font-weight: 750; cursor: pointer; transition: transform .16s, box-shadow .16s, opacity .16s; }
.btn:hover:not(:disabled) { transform: translateY(-1px); }
.btn:disabled { opacity: .42; cursor: not-allowed; }
.btn-gold { color: #fff; background: linear-gradient(135deg, var(--gold), var(--coral)); box-shadow: 0 7px 16px rgba(240,93,61,.18); }
.btn-outline { color: #344054; border-color: var(--border); background: #fff; }
.btn-ghost { color: var(--muted); background: transparent; }
.link-btn { border: 0; background: transparent; color: var(--teal); font-size: 11px; font-weight: 750; cursor: pointer; }
.link-btn.dim { color: var(--muted); }
.helper { color: var(--muted); font-size: 12px; line-height: 1.55; }

.aside-card { margin-bottom: 13px; padding: 17px; background: rgba(255,255,255,.9); }
.aside-tip { margin-top: 10px; color: var(--muted); font-size: 11px; line-height: 1.6; }
.tag, .pill { display: inline-flex; align-items: center; gap: 5px; border: 1px solid var(--border); border-radius: 999px; background: var(--s2); color: var(--muted); font-size: 10px; }
.tag { padding: 4px 8px; }
.pill { overflow: hidden; }
.pill-l { padding: 5px 7px; color: #fff; background: var(--teal); font-weight: 750; }
.pill-v { padding: 5px 8px; }

.tbl-wrap { overflow: auto; max-height: 420px; border: 1px solid var(--border); border-radius: 10px; }
.tbl-wrap table { width: 100%; border-collapse: collapse; font-size: 11px; }
.tbl-wrap th { position: sticky; top: 0; z-index: 1; padding: 10px 12px; background: #344054; color: #fff; text-align: left; white-space: nowrap; }
.tbl-wrap td { padding: 9px 12px; border-bottom: 1px solid var(--border); white-space: nowrap; }
.tbl-wrap tr:nth-child(even) td { background: var(--s2); }

.export-box, .processing-box, .delete-box { margin-top: 17px; padding: 28px; border: 1px solid rgba(15,159,143,.22); border-radius: 14px; background: linear-gradient(145deg, #effbf9, #f8fffd); text-align: center; }
.quality-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 9px; margin: 0 0 16px; }
.quality-card { display: grid; gap: 2px; padding: 12px; border: 1px solid var(--border); border-radius: 10px; background: #fff; text-align: left; }
.quality-card strong { font-size: 18px; line-height: 1.1; }
.quality-card span { color: var(--muted); font-size: 9px; text-transform: uppercase; letter-spacing: .55px; }
.quality-card.good { border-color: rgba(15,159,143,.25); background: #f2fbf9; }
.quality-card.warn { border-color: rgba(245,158,11,.30); background: #fff9ec; }
.export-title { margin-bottom: 6px; font-family: var(--display); font-size: 23px; font-weight: 700; }
.export-sub { margin-bottom: 17px; color: var(--muted); font-size: 12px; }
.btn-dl { min-height: 48px; padding: 12px 22px; border: 0; border-radius: 10px; color: #fff; background: linear-gradient(135deg, var(--teal), #08796e); box-shadow: 0 8px 18px rgba(15,159,143,.2); font-weight: 800; cursor: pointer; }
.progress-wrap { margin: 14px 0; }
.progress-bar-outer, .del-bar-outer { height: 7px; overflow: hidden; border-radius: 999px; background: #dfe7ef; }
.progress-bar-fill, .del-bar-fill { width: 0; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--teal), #2ecab6); transition: width .4s ease; }
.spinner { width: 36px; height: 36px; margin: 0 auto 12px; border: 3px solid rgba(15,159,143,.18); border-top-color: var(--teal); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.del-file { margin: 7px 0; padding: 8px 10px; border-radius: 7px; background: #fff; color: var(--muted); font-family: var(--mono); font-size: 10px; text-align: left; transition: .35s; }
.del-file.deleting { opacity: .28; text-decoration: line-through; }
.del-confirm { margin-top: 13px; opacity: 0; color: var(--teal); font-weight: 700; transition: opacity .3s; }
.del-confirm.show { opacity: 1; }

.toast { position: fixed; left: 50%; bottom: 24px; z-index: 100; display: flex; align-items: center; gap: 8px; padding: 11px 15px; border: 1px solid var(--border); border-radius: 10px; background: #172033; color: #fff; box-shadow: var(--shadow); font-size: 12px; opacity: 0; transform: translate(-50%, 16px); pointer-events: none; transition: .22s ease; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.toast.success { background: #08796e; }
.toast.error { background: #b42338; }

footer { position: relative; z-index: 1; padding: 36px 24px; border-top: 1px solid var(--border); background: rgba(255,255,255,.68); text-align: center; }
.footer-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 18px; margin: 14px 0; }
.footer-links a { color: var(--muted); font-size: 12px; text-decoration: none; }
.footer-links a:hover { color: var(--teal); }
.footer-copy { color: #98a2b3; font-size: 10px; }
.not-found { min-height: calc(100vh - 72px); display: grid; place-items: center; align-content: center; gap: 18px; padding: 40px 20px; text-align: center; }
.not-found h1 { font-family: var(--display); font-size: clamp(32px, 6vw, 56px); }
.not-found p { max-width: 520px; color: var(--muted); }
.guide { position: relative; z-index: 1; }
.guide-hero { max-width: 920px; margin: 0 auto; padding: 74px 24px 48px; text-align: center; }
.guide-hero h1 { margin: 0 auto 16px; font-family: var(--display); font-size: clamp(36px, 6vw, 62px); line-height: 1.06; letter-spacing: -1.8px; }
.guide-hero > p { max-width: 720px; margin: 0 auto; color: var(--muted); font-size: 17px; line-height: 1.7; }
.guide-body { max-width: 820px; margin: 0 auto; padding: 20px 24px 80px; }
.guide-body h2 { margin: 46px 0 14px; font-family: var(--display); font-size: clamp(24px, 4vw, 34px); line-height: 1.2; }
.guide-body h3 { margin-bottom: 10px; font-size: 14px; }
.guide-body p, .guide-body li { color: #526071; font-size: 15px; line-height: 1.8; }
.guide-body a:not(.nav-cta) { color: #08796e; font-weight: 700; }
.guide-body ol, .guide-body ul { padding-left: 23px; }
.guide-body li { margin: 7px 0; padding-left: 4px; }
.example-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 24px 0; }
.example-grid section { padding: 18px; border: 1px solid var(--border); border-radius: 14px; background: #fff; box-shadow: var(--shadow-sm); }
.guide-options { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.guide-options > div { padding: 17px; border: 1px solid var(--border); border-radius: 12px; background: #fff; }
.guide-options strong { display: block; margin-bottom: 6px; font-size: 13px; }
.guide-options p { font-size: 12px; line-height: 1.6; }
.compare-table { margin: 18px 0 36px; }
.decision-box { padding: 22px; border: 1px solid rgba(15,159,143,.24); border-radius: 14px; background: #effbf9; }
.decision-box p + p { margin-top: 9px; }
.guide-cta { margin-top: 54px; padding: 30px; border: 1px solid rgba(15,159,143,.24); border-radius: 18px; background: linear-gradient(145deg, #effbf9, #fff); text-align: center; }
.guide-cta h2 { margin-top: 0; }
.guide-cta p { margin-bottom: 20px; }

@media (max-width: 760px) {
  nav { min-height: 64px; }
  .nav-links { display: none; }
  .nav-ham { display: block; }
  .hero { padding-top: 52px; }
  .hero-h1 { letter-spacing: -1.2px; }
  .steps-bar { top: 74px; overflow-x: auto; justify-content: flex-start; }
  .s-sep { margin: 0 7px; }
  .step-sec { border-radius: 15px; }
  .mtypes, .out-layout { grid-template-columns: 1fr; }
  .key-map-row { grid-template-columns: 1fr; gap: 8px; }
  .explain-grid, .use-section { grid-template-columns: 1fr; }
  .example-grid, .guide-options { grid-template-columns: 1fr; }
  .use-section { gap: 28px; }
  .nav-row { position: sticky; bottom: 0; margin: 20px -12px -12px; padding: 13px 12px; background: rgba(255,255,255,.94); backdrop-filter: blur(10px); }
}

@media (max-width: 440px) {
  .nav-name { font-size: 18px; }
  .hero { padding-inline: 18px; }
  .hero-trust span { font-size: 10px; }
  .step-sec { padding: 20px 15px; }
  .s-lbl { display: none; }
  .s-item.active .s-lbl { display: inline; }
  .col-grid { grid-template-columns: 1fr; }
  .quality-grid { grid-template-columns: 1fr; }
  .use-list > div { grid-template-columns: 1fr; gap: 5px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}