/* ==========================================================================
   拼豆店经营指南 — blog.ptbee.com
   品牌配色取自工具站 www.ptbee.com（emerald-950 / amber-400）
   ========================================================================== */

:root{
  --brand-950:#022c22;
  --brand-900:#04372b;
  --brand-800:#064e3b;
  --brand-700:#065f46;
  --brand-600:#047857;
  --brand-500:#10b981;
  --brand-50:#ecfdf5;

  --accent-600:#b45309;
  --accent-500:#d97706;
  --accent-400:#f59e0b;
  --accent-300:#fbbf24;
  --accent-50:#fffbeb;

  --bg:#fbfaf7;
  --surface:#ffffff;
  --surface-2:#f6f5f1;

  --ink:#1c1917;
  --ink-2:#57534e;
  --ink-3:#8a857e;
  --line:#e7e4df;
  --line-2:#d6d2cb;

  --radius:10px;
  --radius-lg:14px;
  --shadow-sm:0 1px 2px rgba(28,25,23,.05);
  --shadow:0 2px 8px rgba(28,25,23,.06),0 1px 2px rgba(28,25,23,.04);
  --shadow-lg:0 8px 28px rgba(28,25,23,.10);

  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;

  --wrap:1180px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}

/* ---------- 顶部品牌条 ---------- */
.topbar{
  background:var(--brand-950);color:#cfe9df;font-size:.8rem;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:34px}
.topbar a{color:#eafaf3;font-weight:600}
.topbar a:hover{color:var(--accent-300)}
.topbar-brand{display:flex;align-items:center;gap:6px}
.topbar-brand .dot{width:6px;height:6px;border-radius:50%;background:var(--brand-500);flex:none}

/* ---------- 页头 ---------- */
.site-header{
  background:var(--surface);border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:40;
}
.site-header .wrap{display:flex;align-items:center;gap:22px;min-height:64px}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:36px;height:36px;border-radius:9px;flex:none;
  background:linear-gradient(135deg,var(--brand-800),var(--brand-600));
  display:grid;grid-template-columns:repeat(2,1fr);grid-template-rows:repeat(2,1fr);
  gap:3px;padding:7px;
}
.logo-mark i{border-radius:1.5px;display:block}
.logo-mark i:nth-child(1){background:var(--accent-300)}
.logo-mark i:nth-child(2){background:#fff}
.logo-mark i:nth-child(3){background:#fff;opacity:.55}
.logo-mark i:nth-child(4){background:var(--accent-400)}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-text b{font-size:1.02rem;letter-spacing:.01em;color:var(--brand-950)}
.logo-text em{font-style:normal;font-size:.66rem;letter-spacing:.14em;color:var(--ink-3);text-transform:uppercase}

.main-nav{display:flex;gap:4px;margin-left:auto}
.main-nav a{
  padding:8px 13px;border-radius:8px;font-size:.9rem;color:var(--ink-2);font-weight:500;
  transition:.15s;
}
.main-nav a:hover{background:var(--surface-2);color:var(--brand-800)}
.main-nav a.active{background:var(--brand-50);color:var(--brand-800);font-weight:600}

.header-cta{
  flex:none;background:var(--brand-800);color:#fff;font-size:.85rem;font-weight:600;
  padding:9px 16px;border-radius:8px;white-space:nowrap;transition:.15s;
}
.header-cta:hover{background:var(--brand-700);transform:translateY(-1px)}

/* ---------- 首页 Hero ---------- */
.hero{
  background:linear-gradient(160deg,var(--brand-950) 0%,var(--brand-800) 62%,#0a5b46 100%);
  color:#fff;position:relative;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-90px;top:-90px;width:440px;height:440px;border-radius:50%;
  background:radial-gradient(circle at 40% 40%,rgba(251,191,36,.20),transparent 62%);
  pointer-events:none;
}
.hero .wrap{position:relative;z-index:1;padding-top:60px;padding-bottom:56px}
.hero-kicker{
  display:inline-flex;align-items:center;gap:7px;font-size:.78rem;letter-spacing:.1em;
  color:var(--accent-300);border:1px solid rgba(251,191,36,.35);border-radius:999px;
  padding:5px 13px;margin-bottom:20px;font-weight:600;
}
.hero h1{
  margin:0 0 16px;font-size:clamp(1.75rem,4.1vw,2.6rem);line-height:1.28;
  font-weight:800;letter-spacing:-.01em;max-width:16em;
}
.hero h1 span{color:var(--accent-300)}
.hero p{
  margin:0 0 28px;max-width:44em;font-size:1.03rem;line-height:1.8;
  color:rgba(255,255,255,.84);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:36px}
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:9px;
  font-size:.94rem;font-weight:600;transition:.16s;border:1px solid transparent;
}
.btn-primary{background:var(--accent-400);color:#3d2400}
.btn-primary:hover{background:var(--accent-300);transform:translateY(-1px);box-shadow:0 6px 18px rgba(0,0,0,.22)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.26)}
.btn-ghost:hover{background:rgba(255,255,255,.16)}

.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.14);border-radius:12px;overflow:hidden}
.hero-stat{background:rgba(2,44,34,.5);padding:16px 18px}
.hero-stat b{display:block;font-size:1.35rem;font-weight:800;color:var(--accent-300);letter-spacing:-.01em}
.hero-stat span{font-size:.78rem;color:rgba(255,255,255,.72);line-height:1.4;display:block;margin-top:2px}

/* ---------- 通用 section ---------- */
.section{padding:52px 0}
.section--alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin-bottom:26px;display:flex;align-items:flex-end;justify-content:space-between;gap:18px;flex-wrap:wrap}
.section-head h2{
  margin:0;font-size:1.42rem;font-weight:700;letter-spacing:-.01em;color:var(--brand-950);
  display:flex;align-items:center;gap:10px;
}
.section-head h2::before{content:"";width:4px;height:20px;border-radius:2px;background:var(--accent-400);flex:none}
.section-head p{margin:6px 0 0;color:var(--ink-2);font-size:.93rem}
.section-more{font-size:.88rem;font-weight:600;color:var(--brand-700);white-space:nowrap}
.section-more:hover{color:var(--accent-600)}

/* ---------- 内容簇卡片 ---------- */
.cluster-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(268px,1fr));gap:18px}
.cluster{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:22px;display:flex;flex-direction:column;transition:.18s;position:relative;overflow:hidden;
}
.cluster::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand-600);
  transform:scaleY(0);transform-origin:top;transition:.22s;
}
.cluster:hover{border-color:var(--line-2);box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.cluster:hover::before{transform:scaleY(1)}
.cluster-tag{
  font-size:.72rem;font-weight:700;letter-spacing:.08em;color:var(--brand-700);
  background:var(--brand-50);border-radius:5px;padding:3px 9px;align-self:flex-start;margin-bottom:13px;
}
.cluster h3{margin:0 0 9px;font-size:1.09rem;font-weight:700;color:var(--brand-950);line-height:1.45}
.cluster p{margin:0 0 16px;font-size:.9rem;color:var(--ink-2);line-height:1.7;flex:1}
.cluster ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:7px}
.cluster ul a{
  font-size:.87rem;color:var(--ink-2);display:flex;gap:8px;align-items:flex-start;line-height:1.55;
}
.cluster ul a::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--accent-400);margin-top:.58em;flex:none}
.cluster ul a:hover{color:var(--brand-700)}

/* ---------- 文章列表 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}
.post-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:20px 21px;display:flex;flex-direction:column;transition:.18s;
}
.post-card:hover{border-color:var(--brand-600);box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.post-card .cat{
  font-size:.72rem;font-weight:600;color:var(--accent-600);letter-spacing:.05em;margin-bottom:9px;
}
.post-card h3{margin:0 0 9px;font-size:1.04rem;font-weight:700;line-height:1.5;color:var(--brand-950)}
.post-card:hover h3{color:var(--brand-700)}
.post-card p{margin:0 0 14px;font-size:.87rem;color:var(--ink-2);line-height:1.68;flex:1}
.post-card .meta{font-size:.76rem;color:var(--ink-3);display:flex;gap:12px;align-items:center}

/* ---------- 工具条 ---------- */
.tool-strip{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.tool-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:17px 18px;display:flex;gap:13px;align-items:flex-start;transition:.16s;
}
.tool-item:hover{border-color:var(--brand-600);background:var(--brand-50)}
.tool-icon{
  width:36px;height:36px;border-radius:9px;flex:none;display:grid;place-items:center;
  background:var(--brand-950);color:var(--accent-300);font-weight:800;font-size:.95rem;
}
.tool-item b{display:block;font-size:.94rem;color:var(--brand-950);margin-bottom:3px}
.tool-item span{font-size:.8rem;color:var(--ink-2);line-height:1.55;display:block}

/* ---------- 布局：文章页两栏 ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 316px;gap:36px;align-items:start;padding:34px 0 56px}
.layout--wide{grid-template-columns:minmax(0,1fr)}

/* ---------- 面包屑 ---------- */
.crumbs{font-size:.8rem;color:var(--ink-3);display:flex;gap:7px;flex-wrap:wrap;align-items:center;margin-bottom:18px}
.crumbs a:hover{color:var(--brand-700)}
.crumbs i{font-style:normal;opacity:.5}

/* ---------- 文章正文 ---------- */
.article{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:40px 46px;box-shadow:var(--shadow-sm)}
.article-head{border-bottom:1px solid var(--line);padding-bottom:22px;margin-bottom:28px}
.article-head h1{margin:0 0 14px;font-size:clamp(1.5rem,3.2vw,2.05rem);line-height:1.38;font-weight:800;letter-spacing:-.012em;color:var(--brand-950)}
.article-meta{font-size:.81rem;color:var(--ink-3);display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.article-meta b{color:var(--accent-600);font-weight:600}
.article-lede{
  font-size:1rem;color:var(--ink-2);line-height:1.85;border-left:3px solid var(--accent-300);
  padding:2px 0 2px 16px;margin:0 0 28px;background:linear-gradient(90deg,var(--accent-50),transparent 70%);
  border-radius:0 6px 6px 0;padding:14px 18px;
}
.article-body{font-size:1rem;line-height:1.9;color:#292524}
.article-body h2{
  margin:40px 0 16px;font-size:1.34rem;font-weight:700;color:var(--brand-950);
  padding-bottom:11px;border-bottom:1px solid var(--line);scroll-margin-top:84px;
  display:flex;align-items:baseline;gap:11px;
}
.article-body h2 .num{
  font-size:.82rem;font-weight:800;color:var(--accent-500);background:var(--accent-50);
  border-radius:5px;padding:3px 9px;flex:none;font-variant-numeric:tabular-nums;
}
.article-body h3{margin:28px 0 12px;font-size:1.08rem;font-weight:700;color:var(--brand-800);scroll-margin-top:84px}
.article-body p{margin:0 0 17px}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px}
.article-body li{margin-bottom:8px}
.article-body li::marker{color:var(--brand-600)}
.article-body strong{font-weight:700;color:var(--brand-950)}
.article-body a{border-bottom:1px solid var(--brand-500);color:var(--brand-700);font-weight:500}
.article-body a:hover{background:var(--brand-50)}
.article-body code{font-family:var(--mono);font-size:.86em;background:var(--surface-2);padding:2px 6px;border-radius:4px;border:1px solid var(--line)}
.article-body blockquote{
  margin:0 0 20px;padding:14px 20px;background:var(--surface-2);
  border-left:3px solid var(--brand-600);border-radius:0 8px 8px 0;color:var(--ink-2);font-size:.95rem;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:34px 0}

.table-wrap{overflow-x:auto;margin:0 0 22px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
.article-body table{width:100%;border-collapse:collapse;font-size:.9rem;min-width:520px}
.article-body th{
  background:var(--brand-950);color:#fff;font-weight:600;text-align:left;
  padding:11px 14px;white-space:nowrap;font-size:.86rem;
}
.article-body td{padding:11px 14px;border-top:1px solid var(--line);vertical-align:top;line-height:1.68}
.article-body tbody tr:nth-child(even){background:var(--surface-2)}
.article-body td strong{color:var(--accent-600)}

/* 提示框 */
.callout{
  margin:0 0 22px;padding:16px 20px;border-radius:var(--radius);font-size:.93rem;line-height:1.78;
  border:1px solid var(--line);background:var(--surface-2);
}
.callout--warn{background:var(--accent-50);border-color:#fde68a}
.callout--warn b{color:var(--accent-600)}
.callout--tip{background:var(--brand-50);border-color:#a7f3d0}
.callout--tip b{color:var(--brand-700)}
.callout p:last-child{margin-bottom:0}
.callout-title{font-weight:700;display:block;margin-bottom:5px;color:var(--brand-950)}

/* 关键结论卡 */
.keybox{
  background:linear-gradient(150deg,var(--brand-950),var(--brand-800));color:#fff;
  border-radius:var(--radius-lg);padding:24px 26px;margin:0 0 24px;
}
.keybox h4{margin:0 0 13px;font-size:.96rem;letter-spacing:.04em;color:var(--accent-300);font-weight:700}
.keybox ul{margin:0;padding:0;list-style:none}
.keybox li{
  position:relative;padding-left:22px;margin-bottom:9px;font-size:.93rem;
  line-height:1.75;color:rgba(255,255,255,.92);
}
.keybox li:last-child{margin-bottom:0}
.keybox li::before{content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:2px;background:var(--accent-400)}
.keybox strong{color:var(--accent-300)}

/* ---------- 侧栏 ---------- */
.side{display:flex;flex-direction:column;gap:20px;position:sticky;top:82px}
.side-block{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:20px}
.side-block h3{
  margin:0 0 14px;font-size:.86rem;font-weight:700;letter-spacing:.06em;color:var(--ink-3);
  text-transform:uppercase;
}
.side-nav{display:flex;flex-direction:column;gap:2px;margin:-6px 0}
.side-nav a{
  display:flex;justify-content:space-between;align-items:center;gap:10px;
  padding:8px 10px;border-radius:7px;font-size:.89rem;color:var(--ink-2);transition:.14s;
}
.side-nav a:hover{background:var(--surface-2);color:var(--brand-800)}
.side-nav a.active{background:var(--brand-50);color:var(--brand-800);font-weight:600}
.side-nav a b{font-size:.75rem;color:var(--ink-3);font-weight:500;font-variant-numeric:tabular-nums}
.side-links{display:flex;flex-direction:column;gap:11px}
.side-links a{font-size:.88rem;color:var(--ink-2);line-height:1.6;display:block}
.side-links a:hover{color:var(--brand-700)}
.side-links a span{display:block;font-size:.75rem;color:var(--ink-3);margin-top:2px}

/* 目录 */
.toc{max-height:none}
.toc ol{margin:0;padding:0;list-style:none;counter-reset:toc}
.toc li{counter-increment:toc}
.toc a{
  display:block;font-size:.86rem;color:var(--ink-2);padding:6px 0 6px 0;line-height:1.6;
  border-bottom:1px dashed var(--line);
}
.toc li:last-child a{border-bottom:0}
.toc a::before{content:counter(toc,decimal-leading-zero) "  ";color:var(--accent-400);font-weight:700;font-size:.78rem}
.toc a:hover,.toc a.active{color:var(--brand-700);font-weight:600}

/* ---------- 转化卡（核心组件） ---------- */
.cta-card{
  background:linear-gradient(155deg,var(--brand-950) 0%,var(--brand-800) 100%);
  border-radius:var(--radius-lg);padding:22px;color:#fff;position:relative;overflow:hidden;
}
.cta-card::after{
  content:"";position:absolute;right:-50px;bottom:-50px;width:170px;height:170px;border-radius:50%;
  background:radial-gradient(circle,rgba(251,191,36,.22),transparent 68%);
}
.cta-card > *{position:relative;z-index:1}
.cta-label{
  display:inline-block;font-size:.7rem;font-weight:700;letter-spacing:.1em;
  color:var(--accent-300);border:1px solid rgba(251,191,36,.4);border-radius:999px;
  padding:3px 10px;margin-bottom:13px;
}
.cta-card h4{margin:0 0 10px;font-size:1.04rem;font-weight:700;line-height:1.5;color:#fff}
.cta-card p{margin:0 0 16px;font-size:.86rem;line-height:1.72;color:rgba(255,255,255,.82)}
.cta-card .btn{width:100%;justify-content:center;font-size:.9rem;padding:11px 18px}
.cta-note{margin:11px 0 0;font-size:.73rem;color:rgba(255,255,255,.55);text-align:center}

/* 内嵌正文的转化条 */
.cta-inline{
  margin:30px 0;border:1px solid var(--line-2);border-left:4px solid var(--accent-400);
  border-radius:0 var(--radius) var(--radius) 0;background:var(--surface-2);
  padding:20px 22px;display:flex;gap:18px;align-items:center;flex-wrap:wrap;
}
.cta-inline .txt{flex:1;min-width:220px}
.cta-inline b{display:block;font-size:.98rem;color:var(--brand-950);margin-bottom:5px}
.cta-inline span{font-size:.86rem;color:var(--ink-2);line-height:1.65}
.cta-inline .btn-primary{background:var(--brand-800);color:#fff;flex:none;font-size:.88rem;padding:11px 20px}
.cta-inline .btn-primary:hover{background:var(--brand-700);box-shadow:0 6px 16px rgba(4,55,43,.28)}

/* 相关文章 */
.related{display:flex;flex-direction:column;gap:2px}
.related a{display:block;padding:10px 0;border-bottom:1px dashed var(--line);font-size:.88rem;line-height:1.6;color:var(--ink-2)}
.related a:last-child{border-bottom:0}
.related a:hover{color:var(--brand-700)}
.related a em{display:block;font-style:normal;font-size:.74rem;color:var(--ink-3);margin-top:3px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-950);color:rgba(255,255,255,.66);font-size:.85rem;margin-top:20px}
.site-footer .wrap{padding-top:44px;padding-bottom:32px}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:34px;padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:13px}
.footer-brand .logo-mark{background:rgba(255,255,255,.1)}
.footer-brand b{color:#fff;font-size:1rem}
.footer-desc{line-height:1.8;max-width:34em;font-size:.84rem}
.footer-col h4{margin:0 0 13px;font-size:.78rem;letter-spacing:.09em;color:var(--accent-300);font-weight:700}
.footer-col a{display:block;padding:5px 0;color:rgba(255,255,255,.66);font-size:.85rem}
.footer-col a:hover{color:#fff}
.footer-bottom{padding-top:22px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.79rem;color:rgba(255,255,255,.45)}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:var(--accent-300)}

/* ---------- 移动端菜单 ---------- */
.menu-toggle{
  display:none;margin-left:auto;background:none;border:0;padding:8px;cursor:pointer;
  flex-direction:column;gap:4px;
}
.menu-toggle span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px}

/* ---------- 工具页 ---------- */
.tool-hero{background:linear-gradient(160deg,var(--brand-950),var(--brand-800));color:#fff;padding:44px 0}
.tool-hero h1{margin:0 0 12px;font-size:clamp(1.5rem,3.4vw,2.1rem);font-weight:800;line-height:1.35}
.tool-hero p{margin:0;max-width:48em;color:rgba(255,255,255,.82);font-size:.98rem;line-height:1.8}
.calc-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow)}
.calc-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px;margin-bottom:18px}
.field label{display:block;font-size:.83rem;font-weight:600;color:var(--ink-2);margin-bottom:6px}
.field label i{font-style:normal;color:var(--ink-3);font-weight:400;font-size:.78rem}
.field input,.field select{
  width:100%;padding:10px 13px;border:1px solid var(--line-2);border-radius:8px;
  font-size:.94rem;font-family:inherit;background:var(--surface);color:var(--ink);
}
.field input:focus,.field select:focus{outline:2px solid var(--brand-500);outline-offset:-1px;border-color:var(--brand-500)}
.calc-result{
  margin-top:24px;padding:24px;border-radius:var(--radius-lg);
  background:linear-gradient(150deg,var(--brand-950),var(--brand-800));color:#fff;
}
.calc-result h3{margin:0 0 18px;font-size:.88rem;letter-spacing:.08em;color:var(--accent-300);font-weight:700}
.result-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:18px}
.result-item b{display:block;font-size:1.6rem;font-weight:800;color:#fff;letter-spacing:-.02em;line-height:1.2}
.result-item b em{font-style:normal;font-size:.95rem;font-weight:600;color:rgba(255,255,255,.7)}
.result-item span{font-size:.79rem;color:rgba(255,255,255,.66);display:block;margin-top:4px}
.result-verdict{
  margin-top:20px;padding:14px 18px;border-radius:9px;font-size:.9rem;line-height:1.7;
  background:rgba(251,191,36,.14);border:1px solid rgba(251,191,36,.34);color:#fff;
}

/* ---------- 响应式 ---------- */
@media (max-width:1020px){
  .layout{grid-template-columns:1fr;gap:28px}
  .side{position:static}
  .footer-top{grid-template-columns:1fr 1fr;gap:26px}
}
@media (max-width:760px){
  body{font-size:15.5px}
  .main-nav{display:none}
  .header-cta{display:none}
  .menu-toggle{display:flex}
  .hero .wrap{padding-top:40px;padding-bottom:38px}
  .hero-stats{grid-template-columns:1fr 1fr}
  .article{padding:26px 20px;border-radius:12px}
  .article-body h2{font-size:1.18rem}
  .section{padding:38px 0}
  .footer-top{grid-template-columns:1fr;gap:24px}
  .cta-inline{padding:17px}
  .calc-panel{padding:20px}
}