:root {
  --ink: #1c2b33; --soft: #5b7178; --paper: #faf7f0; --card: #ffffff; --line: #e3dccb;
  --teal: #1f6f6b; --teal-d: #16514e; --accent: #c9702c; --accent-d: #9c4f1a;
}
* { box-sizing: border-box; }
html { background: var(--paper); }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16.5px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif; }
a { color: var(--teal-d); }
.wrap { max-width: 880px; margin: 0 auto; padding: 0 16px; }
.top { background: linear-gradient(120deg, var(--teal-d), var(--teal)); color: #fff; }
.topin { display: flex; align-items: center; justify-content: space-between; padding-top: 12px; padding-bottom: 12px; gap: 12px; }
.brand { display: flex; align-items: center; gap: 9px; color: #fff; text-decoration: none; font-weight: 800; font-size: 18px; }
.mark { width: 26px; height: 26px; background: #fdf8ef; border-radius: 6px; padding: 3px; }
.top nav { display: flex; align-items: center; gap: 14px; font-size: 14.5px; }
.top nav a { color: #fdf8ef; text-decoration: none; }
.top .lang { font-weight: 800; border: 1px solid rgba(255,255,255,.4); border-radius: 6px; padding: 2px 7px; font-size: 12.5px; }
.top .pill { background: #fdf8ef; color: var(--teal-d); font-weight: 700; border-radius: 999px; padding: 6px 12px; }
main { padding-top: 10px; padding-bottom: 40px; }
h1 { font-family: Georgia, "Times New Roman", serif; font-size: clamp(28px, 5vw, 40px); line-height: 1.15; margin: 22px 0 12px; }
h2 { font-family: Georgia, serif; font-size: 24px; margin: 34px 0 10px; }
h3 { margin: 0 0 6px; font-size: 18px; }
.lead { font-size: 18.5px; color: var(--ink); }
.answer { background: var(--card); border-left: 4px solid var(--accent); padding: 14px 16px; border-radius: 8px; }
.muted { color: var(--soft); } .small { font-size: 13.5px; }
.crumbs { font-size: 13px; color: var(--soft); margin-top: 16px; } .crumbs a { color: var(--soft); }
.row { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0 8px; }
.btn { display: inline-block; background: var(--accent); color: #141414; font-weight: 800; text-decoration: none; padding: 12px 20px; border-radius: 999px; }
.btn.ghost { background: transparent; color: var(--teal-d); border: 1.5px solid var(--teal-d); }
.hero { padding: 6px 0 4px; }
.feats { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 16px; margin: 26px 0; }
.feat img { width: 100%; height: 300px; object-fit: cover; object-position: top; border-radius: 12px; border: 1px solid var(--line); display: block; }
.feat h3 { font-family: Georgia, serif; margin-top: 12px; }
.feat p { margin: 0; font-size: 15px; color: var(--soft); }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; }
.gcard { display: block; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px; color: var(--ink); text-decoration: none; }
.gcard:hover { border-color: var(--accent); }
.gcard p { margin: 0; font-size: 15px; color: var(--soft); }
.gcard.tool { border-left: 4px solid var(--teal); }
.cta { background: #fff4e8; border: 1px solid #efd3b4; border-radius: 14px; padding: 20px 22px; margin: 34px 0; }
.cta h2 { margin-top: 0; }
.calc { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px; display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); margin: 18px 0 10px; }
.calc label { display: flex; flex-direction: column; gap: 6px; font-weight: 600; font-size: 14.5px; }
.calc input, .calc select { font: inherit; padding: 10px 12px; border: 1.5px solid var(--line); border-radius: 9px; background: #fff; color: var(--ink); }
.result { grid-column: 1 / -1; background: var(--teal-d); color: #fdf8ef; border-radius: 12px; padding: 16px 18px; display: flex; flex-direction: column; }
.result .k { font-size: 13px; text-transform: uppercase; letter-spacing: .06em; opacity: .85; }
.result .v { font-family: Georgia, serif; font-size: 40px; line-height: 1.15; }
.result .d { font-size: 14.5px; opacity: .9; }
.toolbox { background: var(--card); border: 1px dashed var(--teal); border-radius: 10px; padding: 10px 14px; font-weight: 700; }
details { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 10px 14px; margin: 8px 0; }
summary { cursor: pointer; font-weight: 700; }
.foot { border-top: 1px solid var(--line); padding: 20px 0 36px; font-size: 14px; }
@media (max-width: 560px) { .hide-s { display: none; } }