/* ==========================================================================
   厦门易家慧康科技有限公司 · 官网样式
   ========================================================================== */

:root {
  --brand-900: #2b0f30;
  --brand-800: #45194c;
  --brand-700: #612563;
  --brand-600: #7c3381;
  --brand-500: #96429c;
  --brand-300: #c795cd;
  --brand-100: #f2e5f3;
  --brand-50: #faf5fa;

  --accent-700: #b34a00;
  --accent-600: #eb6100;
  --accent-500: #f97e1f;
  --accent-100: #feeadd;

  --ink: #1f1424;
  --ink-soft: #3d2f44;
  --muted: #71617a;
  --line: #ece2ee;
  --bg: #ffffff;
  --bg-alt: #faf7fb;

  --radius-sm: 10px;
  --radius: 14px;
  --radius-lg: 22px;

  --shadow-sm: 0 1px 2px rgba(46, 16, 50, .06), 0 4px 14px rgba(46, 16, 50, .05);
  --shadow: 0 10px 30px rgba(46, 16, 50, .08);
  --shadow-lg: 0 24px 60px rgba(46, 16, 50, .12);

  --maxw: 1200px;
  --font: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui,
    -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }

h1, h2, h3, h4 { margin: 0; line-height: 1.35; font-weight: 600; letter-spacing: -.01em; }
h1 { font-size: 46px; }
h2 { font-size: 34px; }
h3 { font-size: 20px; }
p { margin: 0; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--brand-600), var(--brand-700));
  color: #fff;
  box-shadow: 0 8px 20px rgba(124, 51, 129, .28);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 26px rgba(124, 51, 129, .34); }
.btn-ghost { background: #fff; color: var(--brand-700); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--brand-300); color: var(--brand-600); transform: translateY(-2px); }
.btn-light { background: rgba(255, 255, 255, .14); color: #fff; border-color: rgba(255, 255, 255, .38); }
.btn-light:hover { background: rgba(255, 255, 255, .24); transform: translateY(-2px); }
.btn-block { width: 100%; justify-content: center; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .86);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.site-header.is-scrolled { border-bottom-color: var(--line); box-shadow: 0 6px 24px rgba(46, 16, 50, .06); }
.header-inner { display: flex; align-items: center; gap: 32px; height: 74px; }

.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-logo { height: 42px; width: auto; display: block; flex-shrink: 0; }
.site-footer .brand-logo { height: 40px; }
.brand-slogan {
  font-size: 11px; color: var(--muted); letter-spacing: .08em;
  padding-left: 12px; border-left: 1px solid var(--line); line-height: 1.5;
}
.site-footer .brand-slogan { color: rgba(255, 255, 255, .5); border-left-color: rgba(255, 255, 255, .18); }
.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-text strong { font-size: 18px; font-weight: 600; letter-spacing: .02em; color: var(--brand-900); }
.brand-text em { font-style: normal; font-size: 11px; color: var(--muted); letter-spacing: .06em; }

.nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav a {
  padding: 9px 16px; border-radius: 999px; font-size: 15px; color: var(--ink-soft);
  transition: background .18s ease, color .18s ease;
}
.nav a:hover { background: var(--brand-50); color: var(--brand-700); }
.nav a.active { color: var(--brand-700); font-weight: 500; background: var(--brand-50); }
.header-cta { margin-left: 8px; padding: 11px 22px; font-size: 14px; }

.nav-toggle {
  display: none; margin-left: auto; width: 42px; height: 42px;
  border: 1px solid var(--line); background: #fff; border-radius: 10px;
  cursor: pointer; padding: 0; place-items: center;
}
.nav-toggle span { display: block; width: 18px; height: 2px; background: var(--ink-soft); border-radius: 2px; position: relative; }
.nav-toggle span::before, .nav-toggle span::after {
  content: ""; position: absolute; left: 0; width: 18px; height: 2px; background: var(--ink-soft); border-radius: 2px;
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }

/* ---------- Section shell ---------- */
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { max-width: 760px; margin: 0 auto 56px; text-align: center; }
.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 500; letter-spacing: .1em;
  color: var(--brand-600); background: var(--brand-50); border: 1px solid var(--brand-100);
  padding: 5px 14px; border-radius: 999px; margin-bottom: 18px;
}
.section-head h2 { margin-bottom: 16px; }
.section-head p { color: var(--muted); font-size: 16px; }
.section-head.left { text-align: left; margin-left: 0; }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(1000px 520px at 82% -8%, rgba(235, 97, 0, .16), transparent 62%),
    radial-gradient(900px 560px at 6% 8%, rgba(44, 130, 220, .18), transparent 60%),
    linear-gradient(180deg, #f6faff 0%, #ffffff 72%);
  padding: 92px 0 100px;
}
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.hero h1 { font-size: 48px; letter-spacing: -.02em; margin-bottom: 22px; }
.hero h1 .grad {
  background: linear-gradient(120deg, var(--brand-600) 0%, var(--accent-600) 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; color: transparent;
}
.hero-lead { font-size: 17px; color: var(--ink-soft); margin-bottom: 32px; max-width: 560px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 40px; }
.hero-stats { display: flex; gap: 44px; flex-wrap: wrap; padding-top: 28px; border-top: 1px solid var(--line); }
.hero-stats .num { font-size: 28px; font-weight: 600; color: var(--brand-700); letter-spacing: -.02em; }
.hero-stats .num small { font-size: 15px; font-weight: 500; margin-left: 2px; }
.hero-stats .lbl { font-size: 13px; color: var(--muted); margin-top: 2px; }

/* Hero visual */
.hero-visual { position: relative; }
.hero-visual svg { width: 100%; height: auto; filter: drop-shadow(0 24px 46px rgba(46, 16, 50, .14)); }
.float-chip {
  position: absolute; display: flex; align-items: center; gap: 10px;
  background: #fff; border: 1px solid var(--line); border-radius: 14px;
  padding: 11px 16px; box-shadow: var(--shadow); font-size: 13px; color: var(--ink-soft);
}
.float-chip b { color: var(--brand-700); font-weight: 600; }
.chip-a { top: 6%; left: -4%; animation: floaty 5.2s ease-in-out infinite; }
.chip-b { bottom: 8%; right: -2%; animation: floaty 6.4s ease-in-out infinite reverse; }
.chip-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-500); flex-shrink: 0; }
.chip-dot.warn { background: #f0997b; }
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-9px); } }
@media (prefers-reduced-motion: reduce) { .chip-a, .chip-b { animation: none; } }

/* ---------- Trust bar ---------- */
.trust { padding: 34px 0 8px; }
.trust-label { text-align: center; font-size: 13px; color: var(--muted); letter-spacing: .08em; margin-bottom: 20px; }
.trust-logos {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 18px;
}
.trust-logos span {
  font-size: 15px; color: var(--ink-soft); font-weight: 500;
  padding: 10px 22px; border: 1px solid var(--line); border-radius: 12px; background: #fff;
}

/* ---------- Card grids ---------- */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 32px; transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
  position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--brand-100); }
.card .icon {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  background: var(--brand-50); color: var(--brand-600); margin-bottom: 22px;
}
.card .icon.teal { background: var(--accent-100); color: var(--accent-700); }
.card h3 { margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 15px; }
.card .tag {
  position: absolute; top: 26px; right: 26px; font-size: 12px; color: var(--brand-600);
  background: var(--brand-50); border-radius: 999px; padding: 3px 11px;
}
.card-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 20px; color: var(--brand-600); font-size: 14px; font-weight: 500; }
.card-link svg { transition: transform .2s ease; }
.card:hover .card-link svg { transform: translateX(4px); }

.card-list { margin-top: 18px; display: grid; gap: 9px; }
.card-list li { position: relative; padding-left: 20px; font-size: 14px; color: var(--ink-soft); }
.card-list li::before {
  content: ""; position: absolute; left: 0; top: 9px; width: 7px; height: 7px;
  border-radius: 50%; background: var(--brand-300);
}

/* ---------- Compare table ---------- */
.compare-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius-lg); background: #fff; }
table.compare { width: 100%; border-collapse: collapse; min-width: 720px; }
table.compare th, table.compare td { padding: 18px 24px; text-align: left; font-size: 15px; border-bottom: 1px solid var(--line); vertical-align: top; }
table.compare thead th { background: var(--bg-alt); font-size: 14px; letter-spacing: .04em; color: var(--ink-soft); font-weight: 600; }
table.compare thead th:nth-child(2) { color: var(--muted); }
table.compare thead th:nth-child(3) { color: var(--brand-700); }
table.compare tbody tr:last-child td { border-bottom: none; }
table.compare td:first-child { color: var(--muted); font-weight: 500; width: 22%; }
table.compare td.pain { color: var(--muted); }
table.compare td.gain { color: var(--ink-soft); background: linear-gradient(90deg, rgba(243, 248, 254, .0), rgba(243, 248, 254, .9)); }

/* ---------- Steps / timeline ---------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.step { position: relative; padding-top: 22px; border-top: 2px solid var(--line); }
.step em {
  font-style: normal; position: absolute; top: -14px; left: 0; width: 26px; height: 26px;
  border-radius: 50%; background: var(--brand-600); color: #fff; font-size: 13px;
  display: grid; place-items: center; font-weight: 600;
}
.step h4 { font-size: 16px; margin-bottom: 6px; }
.step p { font-size: 13px; color: var(--muted); }

.timeline { position: relative; padding-left: 30px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 2px; background: var(--line); }
.timeline-item { position: relative; padding-bottom: 32px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: ""; position: absolute; left: -30px; top: 7px; width: 16px; height: 16px;
  border-radius: 50%; background: #fff; border: 3px solid var(--brand-500);
}
.timeline-item .year { font-size: 14px; font-weight: 600; color: var(--brand-700); margin-bottom: 4px; }
.timeline-item p { color: var(--muted); font-size: 15px; }

/* ---------- CTA band ---------- */
.cta-band {
  position: relative; overflow: hidden; border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--brand-800) 0%, var(--brand-700) 46%, var(--accent-700) 100%);
  color: #fff; padding: 62px 56px; display: flex; align-items: center; justify-content: space-between; gap: 40px;
  box-shadow: var(--shadow-lg);
}
.cta-band::after {
  content: ""; position: absolute; right: -80px; top: -80px; width: 320px; height: 320px;
  border-radius: 50%; background: rgba(255, 255, 255, .07);
}
.cta-band h2 { color: #fff; margin-bottom: 12px; }
.cta-band p { color: rgba(255, 255, 255, .82); max-width: 560px; }
.cta-band .btn { position: relative; z-index: 1; flex-shrink: 0; }

/* ---------- Case cards ---------- */
.case-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; display: flex; flex-direction: column; }
.case-top { height: 172px; position: relative; display: grid; place-items: center; }
.case-top.t1 { background: linear-gradient(135deg, #0e4e96, #2c82dc); }
.case-top.t2 { background: linear-gradient(135deg, #45194c, #eb6100); }
.case-top.t3 { background: linear-gradient(135deg, #5a2160, #f97e1f); }
.case-top .badge {
  position: absolute; top: 18px; left: 18px; font-size: 12px; color: #fff;
  background: rgba(255, 255, 255, .18); border: 1px solid rgba(255, 255, 255, .3);
  padding: 4px 12px; border-radius: 999px;
}
.case-top .mono { color: #fff; font-size: 20px; font-weight: 600; letter-spacing: .04em; text-align: center; padding: 0 20px; }
.case-body { padding: 28px; display: flex; flex-direction: column; flex: 1; }
.case-body h3 { margin-bottom: 6px; }
.case-body .sub { font-size: 13px; color: var(--muted); margin-bottom: 16px; }
.case-body p { color: var(--ink-soft); font-size: 15px; }
.case-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 22px; padding-top: 22px; border-top: 1px dashed var(--line); }
.case-metrics .m { text-align: center; }
.case-metrics .m b { display: block; font-size: 20px; color: var(--brand-700); font-weight: 600; }
.case-metrics .m span { font-size: 12px; color: var(--muted); }

/* ---------- Info rows ---------- */
.info-row { display: grid; grid-template-columns: 56px 1fr; gap: 18px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.info-row:last-child { border-bottom: none; }
.info-row .ic { width: 52px; height: 52px; border-radius: 14px; background: var(--brand-50); color: var(--brand-600); display: grid; place-items: center; }
.info-row h4 { font-size: 16px; margin-bottom: 4px; }
.info-row p { color: var(--muted); font-size: 15px; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.form-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 38px; box-shadow: var(--shadow-sm); }
.field { margin-bottom: 20px; }
.field label { display: block; font-size: 14px; color: var(--ink-soft); margin-bottom: 8px; font-weight: 500; }
.field input, .field textarea, .field select {
  width: 100%; padding: 12px 15px; border: 1px solid var(--line); border-radius: var(--radius-sm);
  font-family: inherit; font-size: 15px; color: var(--ink); background: #fdfefe; transition: border-color .18s ease, box-shadow .18s ease;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--brand-500); box-shadow: 0 0 0 4px rgba(44, 130, 220, .12);
}
.field textarea { resize: vertical; min-height: 118px; }
.field .hint { font-size: 12px; color: var(--muted); margin-top: 6px; }
.form-note { font-size: 13px; color: var(--muted); margin-top: 16px; }
.form-status { margin-top: 16px; font-size: 14px; padding: 12px 16px; border-radius: var(--radius-sm); display: none; }
.form-status.ok { display: block; background: #eaf7f1; color: #1c7a55; border: 1px solid #bfe6d5; }

.map-ph { border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; background: var(--bg-alt); }

/* ---------- Footer ---------- */
.site-footer { background: #200c25; color: rgba(255, 255, 255, .72); padding: 66px 0 0; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 46px; }
.site-footer .brand-text strong { color: #fff; }
.site-footer .brand-text em { color: rgba(255, 255, 255, .5); }
.footer-desc { font-size: 14px; line-height: 1.8; margin-top: 18px; max-width: 320px; }
.footer-col h5 { color: #fff; font-size: 15px; font-weight: 600; margin: 0 0 16px; }
.footer-col li { margin-bottom: 11px; font-size: 14px; }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1); padding: 22px 0; font-size: 13px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: rgba(255, 255, 255, .5);
}
.footer-bottom .icp-link {
  color: rgba(255, 255, 255, .5); text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, .22);
  transition: color .2s ease, border-color .2s ease;
}
.footer-bottom .icp-link:hover { color: #fff; border-bottom-color: rgba(255, 255, 255, .6); }

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
  background:
    radial-gradient(760px 340px at 88% -30%, rgba(235, 97, 0, .2), transparent 60%),
    linear-gradient(135deg, var(--brand-900) 0%, var(--brand-700) 100%);
  color: #fff; padding: 78px 0 70px;
}
.page-hero .crumbs { font-size: 13px; color: rgba(255, 255, 255, .6); margin-bottom: 18px; }
.page-hero .crumbs a:hover { color: #fff; }
.page-hero h1 { font-size: 40px; margin-bottom: 16px; }
.page-hero p { color: rgba(255, 255, 255, .82); max-width: 720px; font-size: 16px; }

/* ---------- Notice ---------- */
.notice {
  background: #fffaf0; border: 1px solid #f5dfb3; color: #8a6412;
  border-radius: var(--radius); padding: 16px 20px; font-size: 14px;
}

/* ---------- Reveal ---------- */
html.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
html.js .reveal.in { opacity: 1; transform: none; }
@media print { html.js .reveal { opacity: 1; transform: none; } }

/* ---------- 量化效益（深色数据带） ---------- */
.dark-band {
  background: linear-gradient(135deg, var(--brand-900) 0%, var(--brand-700) 62%, var(--accent-700) 100%);
  border-radius: var(--radius-lg); padding: 54px 46px; color: #fff; box-shadow: var(--shadow-lg);
}
.dark-band .band-head { text-align: center; margin-bottom: 38px; }
.dark-band .band-head h2 { color: #fff; margin-bottom: 12px; }
.dark-band .band-head p { color: rgba(255, 255, 255, .78); }
.metric-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.metric-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.metric {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 26px 22px; text-align: center;
}
.metric b { display: block; font-size: 34px; font-weight: 600; color: var(--brand-700); letter-spacing: -.02em; line-height: 1.1; }
.metric b small { font-size: 18px; font-weight: 500; margin-left: 2px; }
.metric > span { display: block; font-size: 14px; color: var(--muted); margin-top: 8px; }
.dark-band .metric { background: rgba(255, 255, 255, .08); border-color: rgba(255, 255, 255, .18); }
.dark-band .metric b { color: #fff; }
.dark-band .metric > span { color: rgba(255, 255, 255, .74); }

/* ---------- 从…到… 升级对照 ---------- */
.shift-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.shift-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 24px; transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.shift-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--brand-100); }
.shift-card .title { font-size: 15px; font-weight: 600; color: var(--ink); margin-bottom: 16px; }
.shift-row { display: grid; gap: 10px; }
.shift-row .from, .shift-row .to { border-radius: 10px; padding: 11px 14px; font-size: 13.5px; line-height: 1.55; }
.shift-row .from { background: #f5f7fa; color: #8394a8; }
.shift-row .to { background: var(--brand-50); color: var(--brand-700); border: 1px solid var(--brand-100); font-weight: 500; }
.shift-row .arrow { display: flex; align-items: center; gap: 8px; color: var(--brand-300); font-size: 12px; }
.shift-row .arrow::before { content: ""; flex: none; width: 16px; height: 1px; background: var(--brand-300); }
.shift-row .arrow::after { content: ""; flex: none; width: 5px; height: 5px; border-right: 1px solid var(--brand-300); border-bottom: 1px solid var(--brand-300); transform: rotate(45deg); margin-left: -9px; }

/* ---------- 编号条目 ---------- */
.num-list { display: grid; gap: 14px; }
.num-item {
  display: grid; grid-template-columns: 42px 1fr; gap: 16px; align-items: start;
  padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff;
}
.num-item .no {
  width: 42px; height: 42px; border-radius: 12px; background: var(--brand-50); color: var(--brand-600);
  display: grid; place-items: center; font-weight: 600; font-size: 14px;
}
.num-item .no.teal { background: var(--accent-100); color: var(--accent-700); }
.num-item h4 { font-size: 16px; margin-bottom: 5px; }
.num-item p { font-size: 14px; color: var(--muted); }

/* ---------- 技术架构分层 ---------- */
.arch { display: grid; gap: 14px; }
.arch-layer {
  display: grid; grid-template-columns: 132px 1fr; gap: 22px; align-items: center;
  border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 24px; background: #fff;
}
.arch-layer .lbl { font-size: 14px; font-weight: 600; color: var(--brand-700); }
.arch-layer .tags { display: flex; flex-wrap: wrap; gap: 8px; }
.arch-layer .tags span {
  font-size: 13px; padding: 5px 13px; border-radius: 999px;
  background: var(--brand-50); color: var(--brand-700); border: 1px solid var(--brand-100);
}
.arch-layer.key { background: linear-gradient(135deg, var(--brand-800), var(--brand-700)); border-color: transparent; }
.arch-layer.key .lbl { color: #fff; }
.arch-layer.key .tags span { background: rgba(255, 255, 255, .14); color: #fff; border-color: rgba(255, 255, 255, .24); }

/* ---------- 标签组 ---------- */
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tags span {
  font-size: 13px; padding: 6px 14px; border-radius: 999px;
  background: var(--brand-50); color: var(--brand-700); border: 1px solid var(--brand-100);
}
.tags.muted span { background: var(--bg-alt); color: var(--muted); border-color: var(--line); }

/* ---------- 三端产品卡 ---------- */
.terminal { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 30px; display: flex; flex-direction: column; }
.terminal .head { display: flex; align-items: center; gap: 12px; margin-bottom: 6px; }
.terminal .head .ic { width: 42px; height: 42px; border-radius: 12px; background: var(--brand-50); color: var(--brand-600); display: grid; place-items: center; flex: none; }
.terminal .head h3 { font-size: 18px; }
.terminal .sub { font-size: 13px; color: var(--muted); margin-bottom: 20px; }
.terminal ul { display: grid; gap: 14px; }
.terminal li { padding-left: 20px; position: relative; font-size: 14px; color: var(--ink-soft); }
.terminal li::before { content: ""; position: absolute; left: 0; top: 8px; width: 7px; height: 7px; border-radius: 50%; background: var(--brand-300); }
.terminal li b { display: block; color: var(--ink); font-size: 14.5px; font-weight: 600; margin-bottom: 2px; }

/* ---------- 引言块 ---------- */
.quote {
  border-left: 3px solid var(--brand-500); padding: 4px 0 4px 22px;
  color: var(--ink-soft); font-size: 17px; line-height: 1.75;
}
.quote strong { color: var(--brand-700); }

/* ---------- 场景卡 ---------- */
.scene { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 28px; }
.scene .ic { width: 46px; height: 46px; border-radius: 13px; background: var(--brand-50); color: var(--brand-600); display: grid; place-items: center; margin-bottom: 18px; }
.scene h3 { font-size: 17px; margin-bottom: 8px; }
.scene p { font-size: 14px; color: var(--muted); }
.scene .keys { margin-top: 14px; font-size: 13px; color: var(--brand-700); }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  h1 { font-size: 38px; }
  .hero h1 { font-size: 40px; }
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); row-gap: 32px; }
  .shift-grid { grid-template-columns: repeat(2, 1fr); }
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 34px; }
}

@media (max-width: 860px) {
  .nav, .header-cta { display: none; }
  .nav-toggle { display: grid; }
  .site-header.nav-open .nav {
    display: flex; flex-direction: column; align-items: stretch; gap: 2px;
    position: absolute; left: 16px; right: 16px; top: 70px; margin: 0;
    background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
    padding: 12px; box-shadow: var(--shadow-lg);
  }
  .site-header.nav-open .nav a { padding: 12px 14px; border-radius: 10px; }
  .site-header.nav-open .header-cta { display: none; }
  .section { padding: 68px 0; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  .shift-grid, .metric-grid { grid-template-columns: 1fr; }
  .arch-layer { grid-template-columns: 1fr; gap: 12px; }
  .dark-band { padding: 40px 26px; }
  .metric b { font-size: 30px; }
  .steps { grid-template-columns: 1fr; row-gap: 28px; }
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .cta-band { flex-direction: column; align-items: flex-start; padding: 44px 30px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .compare-wrap { border-radius: var(--radius); }
  h2 { font-size: 27px; }
  .page-hero h1 { font-size: 30px; }
  .hero { padding: 62px 0 70px; }
  .hero h1 { font-size: 33px; }
  .float-chip { display: none; }
}

@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .card { padding: 26px; }
  .form-card { padding: 26px; }
  .hero-stats { gap: 28px; }
  .case-metrics { grid-template-columns: 1fr; gap: 14px; }
}