/* ============================================================
   极烁智能官网 · 浅色科技风
   安徽极烁智能科技有限公司 —— 不止于极致 不止于至善
   ============================================================ */
:root {
  --primary: #0d9488;          /* 主色 · 生态青 */
  --primary-deep: #0f766e;
  --primary-soft: #ccfbf1;
  --accent: #1d9bd8;           /* 辅色 · 科技蓝 */
  --accent-soft: #e3f4fc;
  --ink: #10333e;              /* 主文字 */
  --ink-2: #3d5a66;
  --muted: #7b93a0;
  --bg: #f6fafb;
  --card: #ffffff;
  --border: #e4eef1;
  --warn: #e8a33d;
  --shadow: 0 10px 30px rgba(16, 51, 62, .07);
  --shadow-lg: 0 18px 50px rgba(16, 51, 62, .12);
  --radius: 16px;
  --grad: linear-gradient(120deg, #0d9488 0%, #1d9bd8 100%);
  --grad-soft: linear-gradient(120deg, #e8faf6 0%, #e9f5fd 100%);
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
.container { width: min(1180px, 92%); margin: 0 auto; }

/* ---------- 顶部导航 ---------- */
.navbar {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.navbar-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  width: 38px; height: 38px; border-radius: 10px; background: var(--grad);
  display: grid; place-items: center; color: #fff; font-weight: 800; font-size: 17px;
  letter-spacing: -1px; box-shadow: 0 4px 12px rgba(13, 148, 136, .35);
}
.brand-name { font-size: 17px; font-weight: 700; letter-spacing: .5px; }
.brand-name small { display: block; font-size: 11px; font-weight: 500; color: var(--muted); letter-spacing: 2.5px; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  padding: 8px 15px; border-radius: 9px; font-size: 15px; color: var(--ink-2);
  transition: .2s;
}
.nav-links a:hover { color: var(--primary-deep); background: var(--primary-soft); }
.nav-links a.active { color: #fff; background: var(--grad); font-weight: 600; }
.nav-cta {
  margin-left: 10px; padding: 9px 20px !important; border-radius: 10px !important;
  background: var(--grad) !important; color: #fff !important; font-weight: 600 !important;
  box-shadow: 0 4px 14px rgba(13, 148, 136, .3);
}
.nav-toggle { display: none; font-size: 22px; cursor: pointer; color: var(--ink); background: none; border: none; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; border-radius: 11px; font-size: 15px; font-weight: 600;
  cursor: pointer; border: none; transition: .25s;
}
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 6px 18px rgba(13, 148, 136, .32); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(13, 148, 136, .4); }
.btn-ghost { background: #fff; color: var(--primary-deep); border: 1.5px solid var(--primary); }
.btn-ghost:hover { background: var(--primary-soft); transform: translateY(-2px); }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; padding: 90px 0 80px; background: var(--grad-soft); }
.hero::before, .hero::after {
  content: ""; position: absolute; border-radius: 50%; filter: blur(70px); opacity: .55;
}
.hero::before { width: 480px; height: 480px; background: #b9f0e6; top: -180px; right: -100px; }
.hero::after { width: 420px; height: 420px; background: #c9e9fa; bottom: -200px; left: -120px; }
.hero-grid { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: 60px; align-items: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: #fff; border: 1px solid var(--border); color: var(--primary-deep);
  font-size: 13px; font-weight: 600; padding: 6px 14px; border-radius: 999px; margin-bottom: 22px;
}
.eyebrow::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--primary); }
.hero h1 { font-size: clamp(30px, 4vw, 46px); line-height: 1.25; letter-spacing: 1px; }
.hero h1 span { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { margin: 20px 0 30px; font-size: 17px; color: var(--ink-2); max-width: 540px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-visual { position: relative; }
.hero-card {
  background: #fff; border-radius: 20px; box-shadow: var(--shadow-lg);
  padding: 26px; border: 1px solid var(--border); position: relative; z-index: 2;
}
.hero-card .hc-head { display: flex; align-items: center; gap: 8px; margin-bottom: 18px; }
.hc-dot { width: 11px; height: 11px; border-radius: 50%; }
.hc-bar {
  height: 12px; border-radius: 6px; margin: 10px 0; background: #eef5f7; overflow: hidden; position: relative;
}
.hc-bar i { position: absolute; inset: 0; width: var(--w, 60%); background: var(--grad); border-radius: 6px; }
.hc-row { display: flex; justify-content: space-between; font-size: 13px; color: var(--ink-2); padding: 7px 0; border-bottom: 1px dashed var(--border); }
.hc-row b { color: var(--primary-deep); }
.float-chip {
  position: absolute; z-index: 3; background: #fff; border: 1px solid var(--border);
  border-radius: 14px; padding: 12px 18px; box-shadow: var(--shadow-lg); font-size: 13.5px; font-weight: 600;
  display: flex; align-items: center; gap: 10px;
}
.float-chip small { display: block; font-weight: 400; color: var(--muted); font-size: 12px; }
.chip-1 { top: -22px; left: -34px; animation: float 4s ease-in-out infinite; }
.chip-2 { bottom: -24px; right: -20px; animation: float 5s ease-in-out infinite .8s; }
@keyframes float { 50% { transform: translateY(-9px); } }

/* ---------- 统计条 ---------- */
.stats { background: #fff; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { text-align: center; padding: 34px 10px; border-left: 1px solid var(--border); }
.stat:first-child { border-left: none; }
.stat b { font-size: 34px; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat span { display: block; font-size: 14px; color: var(--muted); margin-top: 4px; }

/* ---------- 通用 Section ---------- */
.section { padding: 84px 0; }
.section.alt { background: #fff; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 54px; }
.section-head .tag {
  display: inline-block; font-size: 12.5px; font-weight: 700; letter-spacing: 3px;
  color: var(--accent); text-transform: uppercase; margin-bottom: 12px;
}
.section-head h2 { font-size: clamp(24px, 3vw, 34px); letter-spacing: 1px; }
.section-head p { color: var(--muted); margin-top: 14px; font-size: 16px; }

/* ---------- 卡片 ---------- */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px 28px; transition: .3s; position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: #c8e9e4; }
.card .icon {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  font-size: 24px; background: var(--grad-soft); margin-bottom: 18px;
}
.card h3 { font-size: 18px; margin-bottom: 10px; }
.card p, .card li { color: var(--ink-2); font-size: 14.5px; }
.card .num {
  position: absolute; top: 18px; right: 22px; font-size: 40px; font-weight: 800;
  color: #eef5f7; z-index: 0;
}
.card ul { margin-top: 6px; }
.card li { padding: 5px 0 5px 22px; position: relative; }
.card li::before {
  content: "✓"; position: absolute; left: 0; top: 5px; width: 15px; height: 15px;
  border-radius: 5px; background: var(--primary-soft); color: var(--primary-deep);
  font-size: 11px; display: grid; place-items: center; font-weight: 700;
}

/* ---------- 页面小 Hero ---------- */
.page-hero { padding: 70px 0 60px; background: var(--grad-soft); position: relative; overflow: hidden; }
.page-hero::after { content: ""; position: absolute; width: 380px; height: 380px; border-radius: 50%; background: #c9e9fa; filter: blur(80px); opacity: .5; top: -140px; right: -80px; }
.page-hero h1 { font-size: clamp(26px, 3.4vw, 38px); position: relative; }
.page-hero p { color: var(--ink-2); margin-top: 14px; max-width: 640px; font-size: 16px; position: relative; }
.breadcrumb { font-size: 13px; color: var(--muted); margin-bottom: 16px; position: relative; }
.breadcrumb a:hover { color: var(--primary); }

/* ---------- 步骤 ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.step { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 32px 26px; position: relative; }
.step .s-num {
  width: 42px; height: 42px; border-radius: 12px; background: var(--grad); color: #fff;
  display: grid; place-items: center; font-weight: 700; font-size: 17px; margin-bottom: 16px;
}
.step h3 { font-size: 17px; margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--ink-2); }

/* ---------- 定价 ---------- */
.price-card { background: #fff; border: 1.5px solid var(--border); border-radius: 20px; padding: 36px 30px; text-align: center; transition: .3s; position: relative; }
.price-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.price-card.featured { border-color: var(--primary); box-shadow: var(--shadow-lg); }
.price-card .badge {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: var(--grad); color: #fff; font-size: 12px; font-weight: 600;
  padding: 4px 16px; border-radius: 999px; letter-spacing: 1px;
}
.price-card h3 { font-size: 20px; }
.price-card .pd { color: var(--muted); font-size: 13.5px; margin: 6px 0 18px; }
.price-card .p-price { font-size: 34px; font-weight: 800; color: var(--primary-deep); }
.price-card .p-price small { font-size: 13px; color: var(--muted); font-weight: 400; }
.price-card ul { text-align: left; margin: 24px 0; }
.price-card li { padding: 7px 0 7px 26px; position: relative; font-size: 14px; color: var(--ink-2); border-bottom: 1px dashed var(--border); }
.price-card li::before { content: "✓"; position: absolute; left: 0; color: var(--primary); font-weight: 700; }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; background: #fff; border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; min-width: 640px; }
th, td { padding: 15px 20px; text-align: left; font-size: 14.5px; border-bottom: 1px solid var(--border); }
th { background: #f2faf9; color: var(--primary-deep); font-weight: 700; white-space: nowrap; }
td { color: var(--ink-2); }
td:first-child { font-weight: 600; color: var(--ink); }
.yes { color: var(--primary); font-weight: 700; }
.no { color: #c4d3d9; }

/* ---------- CTA ---------- */
.cta-band {
  background: var(--grad); border-radius: 24px; padding: 60px 50px; text-align: center;
  color: #fff; position: relative; overflow: hidden;
}
.cta-band::before { content: ""; position: absolute; width: 300px; height: 300px; border-radius: 50%; background: rgba(255,255,255,.12); top: -120px; right: -60px; }
.cta-band h2 { font-size: clamp(24px, 3vw, 32px); margin-bottom: 14px; position: relative; }
.cta-band p { opacity: .9; margin-bottom: 30px; position: relative; }
.cta-band .btn { background: #fff; color: var(--primary-deep); position: relative; }
.cta-band .btn:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(0,0,0,.18); }

/* ---------- 对话演示 ---------- */
.chat-box { background: #fff; border: 1px solid var(--border); border-radius: 20px; padding: 24px; box-shadow: var(--shadow-lg); }
.chat-title { display: flex; align-items: center; gap: 10px; padding-bottom: 16px; border-bottom: 1px solid var(--border); font-weight: 700; }
.chat-title .dot { width: 9px; height: 9px; border-radius: 50%; background: #2ecc8f; }
.bubble { max-width: 78%; padding: 13px 17px; border-radius: 15px; font-size: 14px; margin: 16px 0; line-height: 1.75; }
.bubble.user { background: var(--grad-soft); margin-left: auto; border-bottom-right-radius: 4px; color: var(--ink); }
.bubble.bot { background: #f4f8fa; margin-right: auto; border-bottom-left-radius: 4px; color: var(--ink-2); }
.bubble.bot b { color: var(--primary-deep); }

/* ---------- 联系表单 ---------- */
.form-card { background: #fff; border: 1px solid var(--border); border-radius: 20px; padding: 40px; box-shadow: var(--shadow); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-grid .full { grid-column: 1 / -1; }
.field label { display: block; font-size: 13.5px; font-weight: 600; margin-bottom: 7px; color: var(--ink-2); }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 15px; border: 1.5px solid var(--border); border-radius: 11px;
  font-size: 14.5px; font-family: inherit; background: #fbfdfd; color: var(--ink); transition: .2s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--primary); box-shadow: 0 0 0 4px rgba(13,148,136,.1); background: #fff;
}
.field textarea { min-height: 130px; resize: vertical; }

/* ---------- 页脚 ---------- */
.footer { background: #0e2b35; color: #b9cbd4; padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 44px; }
.footer h4 { color: #fff; font-size: 15px; margin-bottom: 18px; letter-spacing: 1px; }
.footer li { padding: 5px 0; font-size: 14px; }
.footer li a:hover { color: #fff; }
.footer .brand-mark { margin-bottom: 14px; }
.footer .motto { font-size: 13.5px; color: #8fa8b3; margin-top: 10px; letter-spacing: 2px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 20px 0; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: 13px; color: #8fa8b3; }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .grid-3, .grid-4, .steps { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat { border: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-links {
    display: none; position: absolute; top: 68px; left: 0; right: 0;
    background: #fff; flex-direction: column; align-items: stretch;
    padding: 14px 5%; border-bottom: 1px solid var(--border); gap: 2px;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: block; }
}
@media (max-width: 620px) {
  .grid-3, .grid-4, .steps, .grid-2, .form-grid { grid-template-columns: 1fr; }
  .section { padding: 56px 0; }
  .cta-band { padding: 44px 26px; }
  .form-card { padding: 26px 20px; }
}

/* ============================================================
   补充组件（v1.1 · 基于产品汇报 PPT 增补）
   ============================================================ */

/* ---------- 政策依据栏 ---------- */
.policy-band { background: var(--grad-soft); padding: 60px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.policy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.policy-item {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 22px 22px 20px; position: relative; transition: .3s;
}
.policy-item:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--primary-soft); }
.policy-item .pico {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  font-size: 20px; background: var(--grad-soft); margin-bottom: 14px;
}
.policy-item h4 { font-size: 15.5px; margin-bottom: 8px; color: var(--ink); }
.policy-item p { font-size: 13.5px; color: var(--ink-2); line-height: 1.65; }
.policy-item .ptag {
  display: inline-block; margin-top: 12px; font-size: 11.5px; font-weight: 700;
  color: var(--primary-deep); background: var(--primary-soft); padding: 3px 10px; border-radius: 999px; letter-spacing: 1px;
}

/* ---------- 量化数据卡 ---------- */
.metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.metric-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  padding: 32px 26px; text-align: center; transition: .3s; position: relative; overflow: hidden;
}
.metric-card::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 3px;
  background: var(--grad); transform: scaleX(0); transform-origin: left; transition: .35s;
}
.metric-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.metric-card:hover::after { transform: scaleX(1); }
.metric-card .mb {
  font-size: 44px; font-weight: 800; background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  letter-spacing: -1px; line-height: 1.1;
}
.metric-card .ms { display: block; margin-top: 8px; font-size: 14px; color: var(--muted); }

/* ---------- 系统截图展示 ---------- */
.shot-frame {
  background: #fff; border-radius: 14px; padding: 10px; border: 1px solid var(--border);
  box-shadow: var(--shadow-lg); overflow: hidden;
}
.shot-frame img { width: 100%; border-radius: 8px; display: block; }
.shot-frame .caption { padding: 12px 6px 4px; font-size: 13.5px; color: var(--ink-2); font-weight: 600; }
.shot-frame .caption small { display: block; font-weight: 400; color: var(--muted); margin-top: 4px; font-size: 12.5px; }

.shot-grid { display: grid; gap: 24px; }
.shot-grid.cols-2 { grid-template-columns: 1.4fr 1fr; align-items: center; }
.shot-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }

/* ---------- 对比表（传统 LIMS vs EMIS） ---------- */
.cmp-table { width: 100%; border-collapse: separate; border-spacing: 0; background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.cmp-table th, .cmp-table td { padding: 16px 18px; text-align: left; font-size: 14px; border-bottom: 1px solid var(--border); }
.cmp-table thead th { background: var(--grad); color: #fff; font-weight: 700; }
.cmp-table thead th:first-child { background: #f1f5f7; color: var(--ink); }
.cmp-table tbody tr:last-child td { border-bottom: none; }
.cmp-table td:first-child { font-weight: 600; color: var(--ink); background: #fbfdfd; }
.cmp-table .y { color: var(--primary-deep); font-weight: 600; }
.cmp-table .n { color: var(--muted); }
.cmp-table .y::before { content: "✓ "; color: var(--primary); font-weight: 800; }
.cmp-table .n::before { content: "— "; color: #c4d3d9; }

/* ---------- 合作方 / 股东卡片 ---------- */
.partner-card {
  background: #fff; border: 1px solid var(--border); border-radius: 20px; padding: 36px 32px;
  transition: .3s; position: relative; overflow: hidden;
}
.partner-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--primary-soft); }
.partner-card .pname { font-size: 20px; font-weight: 700; margin-bottom: 6px; }
.partner-card .prole { font-size: 13px; color: var(--accent); font-weight: 600; letter-spacing: 1px; margin-bottom: 18px; }
.partner-card .pmeta { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 18px; }
.partner-card .pmeta div { text-align: center; padding: 12px 6px; background: var(--grad-soft); border-radius: 10px; }
.partner-card .pmeta b { display: block; font-size: 18px; color: var(--primary-deep); }
.partner-card .pmeta span { font-size: 12px; color: var(--ink-2); }

/* ---------- 时间线（实施路径） ---------- */
.timeline { position: relative; padding: 20px 0 0; }
.timeline::before {
  content: ""; position: absolute; left: 30px; top: 0; bottom: 0; width: 2px; background: var(--border);
}
.tl-item { position: relative; padding: 0 0 36px 70px; }
.tl-item::before {
  content: ""; position: absolute; left: 18px; top: 6px; width: 26px; height: 26px;
  border-radius: 50%; background: var(--grad); box-shadow: 0 0 0 4px #fff, 0 0 0 6px var(--primary-soft);
}
.tl-item h4 { font-size: 17px; margin-bottom: 6px; }
.tl-item p { font-size: 14px; color: var(--ink-2); }
.tl-item .tltag {
  display: inline-block; font-size: 12px; font-weight: 700; padding: 2px 10px;
  background: var(--grad-soft); color: var(--primary-deep); border-radius: 999px; margin-bottom: 8px;
}

/* ---------- 优势四象限 ---------- */
.quarter { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.quarter .card { padding: 28px 26px; }

/* ---------- 登录页配色小标识 ---------- */
.brand-mini { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
.brand-mini .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--grad); }

/* ---------- 响应式补充 ---------- */
@media (max-width: 960px) {
  .policy-grid { grid-template-columns: 1fr 1fr; }
  .metric-grid { grid-template-columns: 1fr 1fr; }
  .shot-grid.cols-2, .shot-grid.cols-3 { grid-template-columns: 1fr; }
  .partner-card .pmeta { grid-template-columns: 1fr 1fr 1fr; }
  .quarter { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .policy-grid { grid-template-columns: 1fr; }
  .metric-grid { grid-template-columns: 1fr; }
  .partner-card .pmeta { grid-template-columns: 1fr; }
}

/* ---------- 图片预览灯箱 ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 9999;
  display: none; align-items: center; justify-content: center;
  background: rgba(10, 28, 34, .92);
  backdrop-filter: blur(6px);
  padding: 32px;
}
.lightbox.show { display: flex; animation: lb-fade .22s ease; }
@keyframes lb-fade { from { opacity: 0; } to { opacity: 1; } }

.lightbox-img {
  max-width: 92vw; max-height: 82vh;
  border-radius: 10px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, .5);
  border: 1px solid rgba(255, 255, 255, .12);
}
.lightbox-caption {
  position: absolute; left: 0; right: 0; bottom: 22px;
  text-align: center; color: #e3eef0; font-size: 14px; font-weight: 600;
}
.lightbox-caption small { display: block; font-weight: 400; color: #9fb3bc; margin-top: 4px; font-size: 12.5px; }

.lightbox-close {
  position: absolute; top: 18px; right: 24px;
  width: 42px; height: 42px; border-radius: 50%;
  display: grid; place-items: center;
  font-size: 28px; line-height: 1; color: #fff;
  background: rgba(255, 255, 255, .12);
  cursor: pointer; transition: .2s; user-select: none;
}
.lightbox-close:hover { background: rgba(255, 255, 255, .25); transform: rotate(90deg); }

@media (max-width: 620px) {
  .lightbox { padding: 16px; }
  .lightbox-close { top: 12px; right: 14px; width: 36px; height: 36px; font-size: 24px; }
  .lightbox-caption { bottom: 12px; font-size: 12.5px; }
}