/* ============================================================================
   金融界 GEO 检测分析系统 · 官网（公开层）样式
   与操作后台、桌面端共用同一套色板：深空蓝黑 #0b1018 + 琥珀金 #ffb453。
   官网与后台的差别只在「密度」：后台是信息密集的工作台，官网留白更大、
   标题更大、动效更克制 —— 但配色、圆角、字体完全一致。
   ============================================================================ */

:root {
  --bg: #0b1018;
  --bg-2: #0d141d;
  --panel: #111a26;
  --panel-2: #0d151f;
  --line: #202b3b;
  --line-2: #253347;
  --gold: #ffb453;
  --gold-2: #ffc56b;
  --gold-dim: rgba(255, 180, 83, .12);
  --blue: #5eb0ff;
  --blue-dim: rgba(94, 176, 255, .12);
  --green: #62d39b;
  --green-dim: rgba(98, 211, 155, .12);
  --red: #ff7f70;
  --txt: #e8edf5;
  --txt-2: #bdc9d7;
  --txt-3: #8492a7;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 22px 50px rgba(0, 0, 0, .38);
  --font: Inter, "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --mono: "JetBrains Mono", "Cascadia Mono", Consolas, monospace;
  --head-h: 72px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--txt);
  background:
    radial-gradient(1100px 620px at 78% -12%, #1d3252 0, transparent 58%),
    radial-gradient(900px 520px at 8% 6%, rgba(255, 180, 83, .07) 0, transparent 55%),
    var(--bg);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  line-height: 1.65;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
::selection { background: rgba(255, 180, 83, .28); }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #22303f; border-radius: 6px; border: 2px solid transparent; background-clip: content-box; }

.wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 26px; }
.narrow { max-width: 900px; }

/* ============ 顶部导航 ============ */
.site-head {
  position: sticky; top: 0; z-index: 60;
  height: var(--head-h);
  display: flex; align-items: center;
  border-bottom: 1px solid transparent;
  transition: background .22s, border-color .22s, backdrop-filter .22s;
}
.site-head.solid {
  background: rgba(11, 16, 24, .82);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}
.head-inner { display: flex; align-items: center; gap: 26px; }

.logo { display: flex; align-items: center; gap: 11px; }
.logo-mark {
  width: 36px; height: 36px; flex: none;
  border-radius: 10px; background: linear-gradient(150deg, var(--gold-2), var(--gold));
  color: #151a21; font-weight: 700; font-size: 20px;
  display: grid; place-items: center;
}
.logo-txt { display: flex; flex-direction: column; line-height: 1.15; }
.logo-txt strong { font-size: 15px; font-weight: 500; letter-spacing: .01em; }
.logo-txt em {
  font-style: normal; font-size: 9px; letter-spacing: .13em;
  color: var(--txt-3); text-transform: uppercase;
}

.site-nav { display: flex; gap: 4px; margin-left: auto; }
.nav-link {
  padding: 8px 13px; border-radius: 9px;
  font-size: 14px; color: var(--txt-2);
  transition: color .16s, background .16s;
}
.nav-link:hover { color: var(--txt); background: rgba(255, 255, 255, .04); }
.nav-link.on { color: var(--gold); background: var(--gold-dim); }

.head-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.site-nav + .head-actions { margin-left: 0; }

.burger {
  display: none; width: 38px; height: 38px; flex: none;
  background: transparent; border: 1px solid var(--line-2); border-radius: 9px;
  cursor: pointer; padding: 9px 9px;
}
.burger span { display: block; height: 1.5px; background: var(--txt-2); margin: 4px 0; border-radius: 2px; }

/* ============ 按钮 ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border-radius: 11px; border: 1px solid transparent;
  font-size: 14.5px; font-weight: 500; font-family: inherit;
  cursor: pointer; transition: transform .14s, background .16s, border-color .16s, box-shadow .16s;
  white-space: nowrap;
}
.btn.primary { background: linear-gradient(150deg, var(--gold-2), var(--gold)); color: #151a21; box-shadow: 0 8px 22px rgba(255, 180, 83, .18); }
.btn.primary:hover { transform: translateY(-1px); box-shadow: 0 12px 28px rgba(255, 180, 83, .26); }
.btn.ghost { border-color: var(--line-2); color: var(--txt-2); background: rgba(255, 255, 255, .015); }
.btn.ghost:hover { border-color: var(--gold); color: var(--gold); }
.btn.sm { padding: 8px 15px; font-size: 13px; border-radius: 9px; }
.btn.lg { padding: 15px 30px; font-size: 15.5px; }
.btn.block { width: 100%; }
.btn[disabled] { opacity: .55; cursor: not-allowed; transform: none; }

/* ============ 通用排版 ============ */
.sec { padding: 82px 0; }
.sec.tight { padding: 58px 0; }
.eyebrow {
  display: inline-block; font-size: 11.5px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--gold); margin-bottom: 14px;
}
h1, h2, h3, h4 { margin: 0; font-weight: 500; line-height: 1.28; }
h1 { font-size: 46px; letter-spacing: -.015em; }
h2 { font-size: 30px; letter-spacing: -.01em; }
h3 { font-size: 17px; }
.lead { font-size: 16.5px; color: var(--txt-2); max-width: 780px; }
.sec-head { max-width: 800px; margin-bottom: 44px; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.sec-head.center .lead { margin-left: auto; margin-right: auto; }
.sec-head h2 { margin-bottom: 12px; }
.muted { color: var(--txt-3); }
.tiny { font-size: 13px; }
.mono { font-family: var(--mono); }

/* ============ 首页首屏 ============ */
.hero { padding: 66px 0 78px; }
.hero-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 56px; align-items: center; }
.hero h1 { margin-bottom: 20px; }
.hero h1 .hl { color: var(--gold); }
.hero .lead { font-size: 17px; margin-bottom: 30px; }
.hero-cta { display: flex; gap: 13px; flex-wrap: wrap; margin-bottom: 34px; }

.hero-stats { display: flex; gap: 34px; flex-wrap: wrap; padding-top: 26px; border-top: 1px solid var(--line); }
.hero-stats div { display: flex; flex-direction: column; }
.hero-stats b { font-size: 25px; font-weight: 500; font-family: var(--mono); color: var(--gold); }
.hero-stats span { font-size: 12.5px; color: var(--txt-3); }

/* 首屏右侧：检测结果示意卡 */
.demo-card {
  background: linear-gradient(165deg, rgba(21, 33, 48, .95), rgba(12, 20, 30, .97));
  border: 1px solid var(--line-2); border-radius: 20px;
  padding: 22px; box-shadow: var(--shadow);
}
.demo-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
.demo-top span { font-size: 12.5px; color: var(--txt-3); }
.demo-top b { font-size: 12.5px; font-weight: 500; color: var(--gold); }
.demo-score { display: flex; align-items: center; gap: 20px; padding-bottom: 18px; border-bottom: 1px solid var(--line); margin-bottom: 16px; }
.ring {
  width: 96px; height: 96px; flex: none; border-radius: 50%;
  display: grid; place-items: center;
  background: conic-gradient(var(--gold) 0 78%, #1c2735 78% 100%);
}
.ring i {
  width: 74px; height: 74px; border-radius: 50%; background: #0f1721;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  font-style: normal;
}
.ring b { font-size: 24px; font-weight: 500; font-family: var(--mono); }
.ring em { font-style: normal; font-size: 10.5px; color: var(--txt-3); }
.demo-score-txt strong { display: block; font-size: 15px; margin-bottom: 4px; }
.demo-score-txt p { margin: 0; font-size: 12.5px; color: var(--txt-3); }

.bar-row { display: flex; align-items: center; gap: 10px; margin-bottom: 11px; }
.bar-row span { width: 76px; flex: none; font-size: 12.5px; color: var(--txt-2); }
.bar { flex: 1; height: 7px; border-radius: 4px; background: #1a2432; overflow: hidden; }
.bar i { display: block; height: 100%; border-radius: 4px; background: linear-gradient(90deg, var(--gold), var(--gold-2)); }
.bar-row b { width: 32px; text-align: right; font-size: 12.5px; font-family: var(--mono); font-weight: 500; color: var(--txt-2); }

/* ============ 卡片网格 ============ */
.grid { display: grid; gap: 18px; }
.grid.g2 { grid-template-columns: repeat(2, 1fr); }
.grid.g3 { grid-template-columns: repeat(3, 1fr); }
.grid.g4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: linear-gradient(168deg, rgba(19, 29, 42, .78), rgba(12, 19, 28, .86));
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px; transition: border-color .18s, transform .18s;
}
.card:hover { border-color: var(--line-2); transform: translateY(-2px); }
.card h3 { margin-bottom: 9px; }
.card p { margin: 0; font-size: 14px; color: var(--txt-2); }
.card .ico {
  width: 38px; height: 38px; border-radius: 11px; margin-bottom: 15px;
  display: grid; place-items: center; font-size: 17px;
  background: var(--gold-dim); color: var(--gold); border: 1px solid rgba(255, 180, 83, .22);
}
.card .ico.blue { background: var(--blue-dim); color: var(--blue); border-color: rgba(94, 176, 255, .22); }
.card .ico.green { background: var(--green-dim); color: var(--green); border-color: rgba(98, 211, 155, .22); }

.pain { border-left: 2px solid rgba(255, 127, 112, .5); }
.pain h3 { color: var(--txt); }

/* ============ 步骤 ============ */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; counter-reset: s; }
.step { position: relative; padding-top: 30px; }
.step::before {
  counter-increment: s; content: "0" counter(s);
  position: absolute; top: 0; left: 0;
  font-family: var(--mono); font-size: 13px; color: var(--gold);
  letter-spacing: .05em;
}
.step::after {
  content: ""; position: absolute; top: 10px; left: 34px; right: -8px; height: 1px;
  background: linear-gradient(90deg, var(--line-2), transparent);
}
.step:last-child::after { display: none; }
.step h3 { margin-bottom: 8px; font-size: 16px; }
.step p { margin: 0; font-size: 13.5px; color: var(--txt-2); }

/* ============ 平台标签 ============ */
.plats { display: flex; flex-wrap: wrap; gap: 10px; }
.plat {
  padding: 9px 15px; border-radius: 10px; font-size: 13.5px;
  background: rgba(255, 255, 255, .03); border: 1px solid var(--line);
  color: var(--txt-2);
}
.plat.cn { border-color: rgba(255, 180, 83, .26); color: var(--gold-2); background: var(--gold-dim); }

/* ============ 双轨五维评分 ============ */
.track + .track { margin-top: 30px; }
.track-head {
  display: flex; align-items: baseline; flex-wrap: wrap; gap: 10px;
  margin-bottom: 14px; padding-left: 13px; border-left: 3px solid var(--gold);
}
.track-head span { font-size: 15.5px; font-weight: 600; color: var(--txt); letter-spacing: .02em; }
.track-head em { font-style: normal; font-size: 13px; color: var(--txt-3); }
.dims { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.dim { padding: 20px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255, 255, 255, .015); }
.dim b { display: block; font-size: 14.5px; margin-bottom: 6px; }
.dim span { font-size: 13px; color: var(--txt-3); }
.dim i { display: block; font-style: normal; font-family: var(--mono); font-size: 12px; color: var(--gold); margin-bottom: 8px; }

/* ============ 价格表 ============ */
.prices { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: start; }
.price {
  background: linear-gradient(168deg, rgba(19, 29, 42, .8), rgba(12, 19, 28, .88));
  border: 1px solid var(--line); border-radius: 18px; padding: 28px 24px;
  display: flex; flex-direction: column;
}
.price.hot { border-color: rgba(255, 180, 83, .42); box-shadow: 0 0 0 1px rgba(255, 180, 83, .1), var(--shadow); position: relative; }
.price.hot::after {
  content: "推荐"; position: absolute; top: -11px; left: 24px;
  background: var(--gold); color: #151a21; font-size: 11px; font-weight: 600;
  padding: 3px 10px; border-radius: 6px;
}
.price h3 { font-size: 18px; margin-bottom: 6px; }
.price .grade { font-size: 12px; color: var(--txt-3); letter-spacing: .1em; text-transform: uppercase; margin-bottom: 18px; }
.price .amount { font-family: var(--mono); font-size: 30px; color: var(--gold); margin-bottom: 4px; }
.price .amount small { font-size: 13px; color: var(--txt-3); font-family: var(--font); }
.price ul { list-style: none; padding: 0; margin: 20px 0 24px; flex: 1; }
.price li { font-size: 13.5px; color: var(--txt-2); padding: 7px 0 7px 22px; position: relative; border-bottom: 1px dashed rgba(255, 255, 255, .05); }
.price li:last-child { border-bottom: 0; }
.price li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-size: 12px; }
.price li.no { color: var(--txt-3); }
.price li.no::before { content: "—"; color: var(--txt-3); }

/* 对比表 */
.table-scroll { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
table.cmp { width: 100%; border-collapse: collapse; min-width: 620px; }
table.cmp th, table.cmp td { padding: 14px 18px; text-align: left; font-size: 13.5px; border-bottom: 1px solid var(--line); }
table.cmp thead th { background: rgba(255, 255, 255, .022); color: var(--txt-3); font-weight: 500; font-size: 12.5px; }
table.cmp tbody tr:last-child td { border-bottom: 0; }
table.cmp td:first-child { color: var(--txt-2); }
table.cmp .v { color: var(--gold-2); font-family: var(--mono); font-size: 13px; }
table.cmp .dash { color: var(--txt-3); }

/* ============ 资讯 ============ */
.chips { display: flex; gap: 9px; flex-wrap: wrap; margin-bottom: 30px; }
.chip {
  padding: 8px 15px; border-radius: 999px; font-size: 13.5px; cursor: pointer;
  background: rgba(255, 255, 255, .03); border: 1px solid var(--line); color: var(--txt-2);
  font-family: inherit; transition: all .16s;
}
.chip:hover { border-color: var(--line-2); color: var(--txt); }
.chip.on { background: var(--gold-dim); border-color: rgba(255, 180, 83, .4); color: var(--gold); }
.chip i { font-style: normal; font-family: var(--mono); font-size: 11.5px; margin-left: 6px; opacity: .7; }

.posts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.post {
  display: flex; flex-direction: column;
  background: linear-gradient(168deg, rgba(19, 29, 42, .78), rgba(12, 19, 28, .86));
  border: 1px solid var(--line); border-radius: var(--radius); padding: 24px;
  transition: border-color .18s, transform .18s;
}
.post:hover { border-color: rgba(255, 180, 83, .34); transform: translateY(-3px); }
.post-featured {
  grid-column: 1 / -1; padding: 34px;
  background: linear-gradient(120deg, rgba(255, 180, 83, .08), rgba(19, 29, 42, .8) 45%, rgba(12, 19, 28, .9));
  border-color: rgba(255, 180, 83, .26);
}
.post-cat {
  display: inline-block; align-self: flex-start;
  font-size: 11.5px; color: var(--gold); background: var(--gold-dim);
  padding: 3px 10px; border-radius: 6px; margin-bottom: 14px;
}
.post h3 { font-size: 16px; margin-bottom: 10px; line-height: 1.42; }
.post-featured h3 { font-size: 25px; margin-bottom: 12px; }
.post p { margin: 0 0 18px; font-size: 13.5px; color: var(--txt-2); flex: 1; }
.post-featured p { font-size: 15px; max-width: 760px; }
.post-meta { display: flex; gap: 16px; font-size: 12px; color: var(--txt-3); padding-top: 14px; border-top: 1px solid var(--line); }
.empty { color: var(--txt-3); font-size: 14px; }

/* 文章详情 */
.article { padding: 52px 0 70px; }
.article-head { max-width: 780px; margin: 0 auto 34px; }
.crumb { font-size: 13px; color: var(--txt-3); margin-bottom: 20px; }
.crumb a:hover { color: var(--gold); }
.article-head h1 { font-size: 36px; margin: 14px 0 16px; }
.article-summary { font-size: 16px; color: var(--txt-2); padding-left: 16px; border-left: 2px solid rgba(255, 180, 83, .4); }
.article-meta { display: flex; gap: 18px; flex-wrap: wrap; font-size: 12.5px; color: var(--txt-3); margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line); }
.article-body { max-width: 780px; margin: 0 auto; font-size: 15.5px; color: #d7dfea; }
.article-body h2 { font-size: 22px; margin: 44px 0 16px; color: var(--txt); }
.article-body h3 { font-size: 17px; margin: 30px 0 12px; color: var(--txt); }
.article-body p { margin: 0 0 18px; }
.article-body ul, .article-body ol { margin: 0 0 20px; padding-left: 22px; }
.article-body li { margin-bottom: 9px; }
.article-body strong { color: var(--gold-2); font-weight: 500; }
.article-body code { font-family: var(--mono); font-size: 13.5px; background: rgba(255, 255, 255, .05); padding: 2px 6px; border-radius: 5px; }
.article-body blockquote {
  margin: 0 0 20px; padding: 14px 20px; border-left: 2px solid var(--gold);
  background: rgba(255, 180, 83, .05); border-radius: 0 10px 10px 0; color: var(--txt-2);
}
.article-body hr { border: 0; border-top: 1px solid var(--line); margin: 34px 0; }
.tbl { overflow-x: auto; margin: 0 0 24px; border: 1px solid var(--line); border-radius: 10px; }
.article-body table { width: 100%; border-collapse: collapse; min-width: 440px; }
.article-body th, .article-body td { padding: 11px 15px; text-align: left; font-size: 14px; border-bottom: 1px solid var(--line); }
.article-body th { background: rgba(255, 255, 255, .025); color: var(--txt-3); font-weight: 500; font-size: 12.5px; }
.article-body tbody tr:last-child td { border-bottom: 0; }
.article-body a { color: var(--gold); border-bottom: 1px solid rgba(255, 180, 83, .35); }
.article-tags { max-width: 780px; margin: 34px auto 0; display: flex; gap: 9px; flex-wrap: wrap; }
.tag { font-size: 12px; color: var(--txt-3); border: 1px solid var(--line); padding: 4px 11px; border-radius: 6px; }
.related { margin-top: 56px; padding-top: 34px; border-top: 1px solid var(--line); }
.related h3 { margin-bottom: 18px; font-size: 15px; color: var(--txt-3); font-weight: 400; }
.rel { display: flex; flex-direction: column; gap: 6px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.rel:hover strong { color: var(--gold); }
.rel span { font-size: 11.5px; color: var(--txt-3); }
.rel strong { font-weight: 500; font-size: 14.5px; }

/* ============ 表单 / 联系 ============ */
.form { display: grid; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field label { font-size: 13px; color: var(--txt-2); }
.field input, .field textarea, .field select {
  width: 100%; padding: 12px 14px; border-radius: 10px;
  background: rgba(255, 255, 255, .03); border: 1px solid var(--line-2);
  color: var(--txt); font-family: inherit; font-size: 14px; outline: none;
  transition: border-color .16s, background .16s;
}
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--gold); background: rgba(255, 180, 83, .04); }
.field textarea { min-height: 108px; resize: vertical; }
.field select option { background: #111a26; }
.form-msg { font-size: 13px; padding: 11px 14px; border-radius: 9px; display: none; }
.form-msg.ok { display: block; background: var(--green-dim); color: var(--green); border: 1px solid rgba(98, 211, 155, .3); }
.form-msg.err { display: block; background: rgba(255, 127, 112, .12); color: var(--red); border: 1px solid rgba(255, 127, 112, .3); }

.contact-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 34px; align-items: start; }
.contact-list { display: grid; gap: 14px; margin-top: 22px; }
.contact-list div { display: flex; gap: 12px; align-items: baseline; font-size: 14px; }
.contact-list b { color: var(--txt-3); font-weight: 400; font-size: 13px; width: 52px; flex: none; }
.qr {
  width: 168px; height: 168px; border-radius: 14px; border: 1px dashed var(--line-2);
  display: grid; place-items: center; background: rgba(255, 255, 255, .02); overflow: hidden;
}
.qr img { width: 100%; height: 100%; object-fit: cover; }
.qr .qr-ph { display: none; text-align: center; font-size: 12px; color: var(--txt-3); line-height: 1.7; }
.qr.qr-empty .qr-ph { display: block; }
.qr .qr-ph em { font-style: normal; font-family: var(--mono); font-size: 10.5px; }

/* ============ CTA 区 ============ */
.cta {
  border: 1px solid rgba(255, 180, 83, .26); border-radius: 22px; padding: 48px;
  background: linear-gradient(120deg, rgba(255, 180, 83, .1), rgba(19, 29, 42, .78) 48%, rgba(12, 19, 28, .9));
  display: flex; align-items: center; justify-content: space-between; gap: 34px; flex-wrap: wrap;
}
.cta h2 { font-size: 27px; margin-bottom: 10px; }
.cta p { margin: 0; color: var(--txt-2); font-size: 15px; max-width: 520px; }

/* ============ 页脚 ============ */
.site-foot { border-top: 1px solid var(--line); margin-top: 46px; padding: 52px 0 26px; background: rgba(9, 13, 19, .6); }
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 34px; }
.foot-slogan { color: var(--gold); font-size: 14px; margin: 16px 0 8px; }
.foot-tip { font-size: 13px; color: var(--txt-3); max-width: 330px; margin: 0; }
.foot-col { display: flex; flex-direction: column; gap: 10px; }
.foot-col h4 { font-size: 13px; color: var(--txt-3); font-weight: 400; margin-bottom: 4px; }
.foot-col a, .foot-col span { font-size: 13.5px; color: var(--txt-2); }
.foot-col a:hover { color: var(--gold); }
.foot-bar {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  margin-top: 42px; padding-top: 22px; border-top: 1px solid var(--line);
  font-size: 12.5px; color: var(--txt-3);
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  h1 { font-size: 38px; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .grid.g4, .steps { grid-template-columns: repeat(2, 1fr); }
  .posts { grid-template-columns: repeat(2, 1fr); }
  .prices { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  :root { --head-h: 62px; }
  .site-nav {
    position: fixed; top: var(--head-h); left: 0; right: 0;
    flex-direction: column; gap: 2px; padding: 14px 20px 20px;
    background: rgba(11, 16, 24, .97); border-bottom: 1px solid var(--line);
    display: none;
  }
  .site-nav.open { display: flex; }
  .nav-link { padding: 12px 14px; font-size: 15px; }
  .burger { display: block; }
  .head-actions .btn.ghost { display: none; }
  h1 { font-size: 30px; }
  h2 { font-size: 23px; }
  .sec { padding: 56px 0; }
  .grid.g2, .grid.g3, .grid.g4, .steps, .posts { grid-template-columns: 1fr; }
  .dims { grid-template-columns: 1fr; }
  .article-head h1 { font-size: 26px; }
  .post-featured h3 { font-size: 20px; }
  .cta { padding: 30px; }
  .hero-stats { gap: 22px; }
}