/* ============================================================
   Kunlun Link Technology — Bilingual Corporate Website
   style.css  v1.0
   ============================================================ */

:root {
  --navy-950: #060f1f;
  --navy-900: #081528;
  --navy-800: #0b1b33;
  --navy-700: #11294d;
  --blue-700: #1556c9;
  --blue-600: #1b6df3;
  --blue-500: #2e7cf6;
  --blue-100: #e3eeff;
  --cyan-400: #22d3ee;
  --bg: #f5f8fc;
  --white: #ffffff;
  --ink: #16233a;
  --muted: #5a6b85;
  --line: #e4eaf2;
  --green: #16a34a;
  --amber: #f59e0b;
  --red: #dc2626;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 3px rgba(11, 27, 51, .07);
  --shadow-md: 0 6px 24px rgba(11, 27, 51, .09);
  --shadow-lg: 0 16px 48px rgba(11, 27, 51, .14);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--blue-600); text-decoration: none; }
a:hover { color: var(--blue-700); }
ul { list-style: none; }
.container { width: min(1200px, 92%); margin: 0 auto; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; gap: 24px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand img { height: 40px; width: auto; }
.brand-name { font-weight: 700; font-size: 17px; color: var(--navy-800); line-height: 1.2; }
.brand-name small { display: block; font-size: 11px; font-weight: 500; color: var(--muted); letter-spacing: .4px; }

.main-nav { display: flex; align-items: center; gap: 6px; }
.main-nav a {
  padding: 8px 14px; border-radius: 8px; font-size: 15px; font-weight: 500;
  color: var(--ink); transition: background .2s, color .2s;
}
.main-nav a:hover { background: var(--blue-100); color: var(--blue-700); }
.main-nav a.active { color: var(--blue-600); background: var(--blue-100); }

.header-actions { display: flex; align-items: center; gap: 12px; }
.lang-switch {
  display: inline-flex; align-items: center; gap: 4px;
  border: 1px solid var(--line); border-radius: 999px; padding: 5px 6px;
  background: var(--white);
}
.lang-switch button {
  border: 0; background: transparent; cursor: pointer;
  font-size: 13px; font-weight: 600; color: var(--muted);
  padding: 4px 10px; border-radius: 999px; transition: all .2s;
}
.lang-switch button.active { background: var(--blue-600); color: #fff; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 22px; border-radius: 10px; font-size: 15px; font-weight: 600;
  border: 0; cursor: pointer; transition: transform .15s, box-shadow .15s, background .2s;
  font-family: var(--font);
}
.btn-primary { background: var(--blue-600); color: #fff; }
.btn-primary:hover { background: var(--blue-700); color: #fff; transform: translateY(-1px); box-shadow: 0 8px 20px rgba(27,109,243,.35); }
.btn-outline { background: transparent; color: var(--blue-700); border: 1.5px solid var(--blue-600); }
.btn-outline:hover { background: var(--blue-600); color: #fff; border-color: var(--blue-600); }
.btn-light { background: var(--white); color: var(--blue-700); }
.btn-light:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-sm { padding: 8px 16px; font-size: 14px; }

.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 6px; }
.nav-toggle svg { width: 26px; height: 26px; stroke: var(--navy-800); }

/* ---------- Hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--navy-950) 0%, var(--navy-800) 55%, var(--blue-700) 130%);
  color: #fff;
}
.hero-grid-bg {
  position: absolute; inset: 0; opacity: .35;
  background-image:
    linear-gradient(rgba(255,255,255,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.07) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 80% 70% at 30% 30%, #000 40%, transparent 100%);
}
.hero-glow {
  position: absolute; width: 560px; height: 560px; border-radius: 50%;
  background: radial-gradient(circle, rgba(34,211,238,.28), transparent 65%);
  top: -180px; right: -120px; filter: blur(10px);
}
.hero-inner { position: relative; padding: 96px 0 84px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.22);
  padding: 6px 14px; border-radius: 999px; font-size: 13px; font-weight: 600;
  color: #cfe3ff; margin-bottom: 22px;
}
.hero-badge::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--cyan-400); box-shadow: 0 0 10px var(--cyan-400); }
.hero h1 { font-size: clamp(34px, 5vw, 56px); line-height: 1.15; font-weight: 800; letter-spacing: -.5px; max-width: 760px; }
.hero h1 .accent { color: var(--cyan-400); }
.hero p.lead { font-size: 18px; color: #c7d4ea; max-width: 640px; margin: 20px 0 32px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
  margin-top: 56px; padding-top: 36px; border-top: 1px solid rgba(255,255,255,.14);
}
.stat b { display: block; font-size: 30px; font-weight: 800; color: #fff; }
.stat b em { color: var(--cyan-400); font-style: normal; }
.stat span { font-size: 13.5px; color: #9fb4d4; }

/* ---------- Sections ---------- */
.section { padding: 84px 0; }
.section.alt { background: var(--white); }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 52px; }
.section-head .kicker {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: 1.5px;
  text-transform: uppercase; color: var(--blue-600); margin-bottom: 12px;
}
.section-head h2 { font-size: clamp(26px, 3.4vw, 38px); font-weight: 800; color: var(--navy-800); letter-spacing: -.3px; }
.section-head p { color: var(--muted); margin-top: 14px; font-size: 16.5px; }

/* category cards */
.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.cat-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 22px; transition: all .22s; display: block; color: var(--ink);
}
.cat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: #cfe0ff; color: var(--ink); }
.cat-card .ic {
  width: 52px; height: 52px; border-radius: 12px; display: grid; place-items: center;
  background: var(--blue-100); color: var(--blue-600); margin-bottom: 16px;
}
.cat-card .ic svg { width: 26px; height: 26px; }
.cat-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
.cat-card p { font-size: 13.5px; color: var(--muted); }

/* product cards */
.prod-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.prod-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; transition: all .22s; display: block; color: var(--ink);
}
.prod-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); color: var(--ink); }
.prod-card .thumb {
  aspect-ratio: 1/1; background: #fafcff; display: grid; place-items: center;
  padding: 18px; border-bottom: 1px solid var(--line); position: relative;
}
.prod-card .thumb img { width: 100%; height: 100%; object-fit: contain; transition: transform .3s; }
.prod-card:hover .thumb img { transform: scale(1.05); }
.prod-card .body { padding: 16px 18px 18px; }
.prod-card .model { font-size: 12px; font-weight: 700; color: var(--blue-600); letter-spacing: .5px; }
.prod-card h3 { font-size: 16.5px; font-weight: 700; margin: 5px 0 6px; }
.prod-card .tag { font-size: 13.5px; color: var(--muted); }
.prod-card .foot { display: flex; justify-content: space-between; align-items: center; margin-top: 14px; }
.prod-card .cat-label { font-size: 12px; color: var(--muted); background: var(--bg); padding: 3px 9px; border-radius: 999px; }
.prod-card .more { font-size: 13.5px; font-weight: 600; color: var(--blue-600); }

/* filter chips */
.filter-bar { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 40px; }
.chip {
  padding: 8px 18px; border-radius: 999px; border: 1px solid var(--line);
  background: var(--white); font-size: 14px; font-weight: 600; color: var(--muted);
  cursor: pointer; transition: all .2s; font-family: var(--font);
}
.chip:hover { border-color: var(--blue-500); color: var(--blue-600); }
.chip.active { background: var(--blue-600); border-color: var(--blue-600); color: #fff; }

/* feature rows */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.feature {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 24px;
}
.feature .ic { width: 46px; height: 46px; border-radius: 12px; background: var(--blue-100); color: var(--blue-600); display: grid; place-items: center; margin-bottom: 16px; }
.feature .ic svg { width: 24px; height: 24px; }
.feature h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.feature p { font-size: 14.5px; color: var(--muted); }

/* solution cards */
.sol-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.sol-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 28px; display: block; color: var(--ink); transition: all .22s; position: relative; overflow: hidden;
}
.sol-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); color: var(--ink); }
.sol-card .sol-tag { font-size: 12px; font-weight: 700; color: var(--blue-600); background: var(--blue-100); padding: 4px 12px; border-radius: 999px; display: inline-block; margin-bottom: 14px; }
.sol-card h3 { font-size: 21px; font-weight: 800; color: var(--navy-800); margin-bottom: 10px; }
.sol-card p { font-size: 14.5px; color: var(--muted); }
.sol-card .sol-points { margin-top: 16px; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.sol-card .sol-points li { font-size: 13.5px; color: var(--ink); display: flex; gap: 8px; align-items: flex-start; }
.sol-card .sol-points svg { width: 15px; height: 15px; color: var(--green); flex-shrink: 0; margin-top: 3px; }
.sol-card .arrow { margin-top: 18px; font-weight: 700; color: var(--blue-600); font-size: 14.5px; }

/* news cards */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.news-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 22px; transition: all .22s; display: block; color: var(--ink);
}
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); color: var(--ink); }
.news-card .date { font-size: 12.5px; color: var(--muted); font-weight: 600; }
.news-card h3 { font-size: 16.5px; font-weight: 700; margin: 10px 0 8px; line-height: 1.45; }
.news-card p { font-size: 14px; color: var(--muted); }
.news-card .more { display: inline-block; margin-top: 14px; font-size: 13.5px; font-weight: 700; color: var(--blue-600); }

/* CTA band */
.cta-band {
  background: linear-gradient(120deg, var(--navy-800), var(--blue-700));
  border-radius: 20px; padding: 56px 48px; color: #fff; text-align: center;
  position: relative; overflow: hidden;
}
.cta-band::after {
  content: ""; position: absolute; width: 380px; height: 380px; border-radius: 50%;
  background: radial-gradient(circle, rgba(34,211,238,.3), transparent 65%);
  top: -160px; right: -100px;
}
.cta-band h2 { font-size: clamp(24px, 3vw, 34px); font-weight: 800; }
.cta-band p { color: #c7d4ea; margin: 12px 0 26px; font-size: 16px; }
.cta-band .btn-wrap { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; position: relative; z-index: 1; }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.about-grid h2 { font-size: clamp(26px, 3vw, 36px); font-weight: 800; color: var(--navy-800); margin-bottom: 18px; }
.about-grid p { color: var(--muted); margin-bottom: 14px; }
.about-points { margin: 20px 0 26px; display: grid; gap: 12px; }
.about-points li { display: flex; gap: 12px; font-size: 15px; color: var(--ink); font-weight: 500; }
.about-points svg { width: 20px; height: 20px; color: var(--green); flex-shrink: 0; }
.stats-band { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 56px; }
.stat-box { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 18px; text-align: center; }
.stat-box b { display: block; font-size: 30px; font-weight: 800; color: var(--blue-600); }
.stat-box span { font-size: 13.5px; color: var(--muted); }

/* ---------- Product detail ---------- */
.breadcrumb { font-size: 13.5px; color: var(--muted); padding: 22px 0 0; }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--blue-600); }
.breadcrumb .sep { margin: 0 8px; color: #b9c4d6; }
.pd-top { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; padding: 36px 0 24px; align-items: start; }
.pd-gallery {
  background: #fafcff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; display: grid; place-items: center; position: sticky; top: 96px;
}
.pd-gallery img { max-height: 420px; object-fit: contain; }
.pd-info .model { font-size: 13px; font-weight: 700; color: var(--blue-600); letter-spacing: 1px; text-transform: uppercase; }
.pd-info h1 { font-size: clamp(26px, 3.4vw, 40px); font-weight: 800; color: var(--navy-800); margin: 8px 0 10px; }
.pd-info .pd-tag { font-size: 16px; color: var(--muted); margin-bottom: 18px; }
.pd-info .pd-desc { color: var(--muted); font-size: 15.5px; margin-bottom: 22px; }
.pd-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.pd-meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.pd-meta span { font-size: 13px; font-weight: 600; background: var(--white); border: 1px solid var(--line); border-radius: 999px; padding: 6px 14px; color: var(--muted); }

.pd-section { padding: 48px 0; }
.pd-section + .pd-section { border-top: 1px solid var(--line); }
.pd-section h2 { font-size: 24px; font-weight: 800; color: var(--navy-800); margin-bottom: 22px; display: flex; align-items: center; gap: 10px; }
.pd-section h2::before { content: ""; width: 6px; height: 24px; border-radius: 4px; background: var(--blue-600); }

.spec-table { width: 100%; border-collapse: collapse; background: var(--white); border-radius: var(--radius); overflow: hidden; }
.spec-table th, .spec-table td { text-align: left; padding: 13px 18px; font-size: 14.5px; border-bottom: 1px solid var(--line); }
.spec-table th { background: var(--navy-800); color: #fff; font-weight: 600; width: 230px; }
.spec-table tr:last-child th, .spec-table tr:last-child td { border-bottom: 0; }
.spec-table tr:nth-child(even) td { background: #fafcff; }

.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.feature-list li { display: flex; gap: 10px; background: var(--white); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; font-size: 14.5px; align-items: flex-start; }
.feature-list svg { width: 18px; height: 18px; color: var(--blue-600); flex-shrink: 0; margin-top: 3px; }

.app-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.app-list li { display: flex; gap: 10px; align-items: center; background: var(--white); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; font-size: 14.5px; }
.app-list li::before { content: "✓"; color: var(--green); font-weight: 800; }

.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 40px; align-items: start; }
.contact-cards { display: grid; gap: 16px; }
.contact-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px; display: flex; gap: 16px; align-items: flex-start; }
.contact-card .ic { width: 44px; height: 44px; border-radius: 12px; background: var(--blue-100); color: var(--blue-600); display: grid; place-items: center; flex-shrink: 0; }
.contact-card .ic svg { width: 22px; height: 22px; }
.contact-card h3 { font-size: 15.5px; font-weight: 700; margin-bottom: 4px; }
.contact-card p, .contact-card a { font-size: 14.5px; color: var(--muted); }
.contact-card a:hover { color: var(--blue-600); }

.inquiry-form { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 34px; }
.inquiry-form h3 { font-size: 22px; font-weight: 800; color: var(--navy-800); margin-bottom: 6px; }
.inquiry-form > p { color: var(--muted); font-size: 14.5px; margin-bottom: 24px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-field { display: flex; flex-direction: column; gap: 6px; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-size: 13.5px; font-weight: 600; color: var(--ink); }
.form-field label i { color: var(--red); font-style: normal; }
.form-field input, .form-field select, .form-field textarea {
  border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px;
  font-size: 14.5px; font-family: var(--font); background: #fbfdff; outline: none;
  transition: border-color .2s, box-shadow .2s; color: var(--ink);
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  border-color: var(--blue-500); box-shadow: 0 0 0 3px rgba(46,124,246,.15); background: #fff;
}
.form-field textarea { resize: vertical; min-height: 120px; }
.form-submit { margin-top: 22px; }
.form-note { font-size: 12.5px; color: var(--muted); margin-top: 12px; }

/* ---------- Downloads / news list ---------- */
.dl-list { display: grid; gap: 12px; }
.dl-row {
  display: flex; align-items: center; gap: 16px; background: var(--white);
  border: 1px solid var(--line); border-radius: 12px; padding: 16px 20px; transition: all .2s;
}
.dl-row:hover { box-shadow: var(--shadow-sm); border-color: #cfe0ff; }
.dl-row .ic { width: 42px; height: 42px; border-radius: 10px; background: var(--blue-100); color: var(--blue-600); display: grid; place-items: center; flex-shrink: 0; }
.dl-row .ic svg { width: 20px; height: 20px; }
.dl-row h3 { font-size: 15px; font-weight: 600; }
.dl-row .type { font-size: 12px; color: var(--muted); }
.dl-row .arrow { margin-left: auto; color: var(--blue-600); flex-shrink: 0; }
.dl-row .arrow svg { width: 20px; height: 20px; }

.news-list { display: grid; gap: 16px; max-width: 900px; margin: 0 auto; }
.news-item { display: block; color: var(--ink); background: var(--white); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px 28px; transition: all .2s; }
.news-item:hover { box-shadow: var(--shadow-md); color: var(--ink); }
.news-item .date { font-size: 13px; color: var(--muted); font-weight: 600; }
.news-item h2 { font-size: 20px; font-weight: 700; margin: 8px 0 8px; }
.news-item p { color: var(--muted); font-size: 14.5px; }

/* ---------- Page hero (inner) ---------- */
.page-hero {
  background: linear-gradient(135deg, var(--navy-900), var(--navy-700));
  color: #fff; padding: 64px 0; position: relative; overflow: hidden;
}
.page-hero::after {
  content: ""; position: absolute; width: 420px; height: 420px; border-radius: 50%;
  background: radial-gradient(circle, rgba(34,211,238,.25), transparent 65%);
  top: -160px; right: -80px;
}
.page-hero h1 { font-size: clamp(28px, 4vw, 42px); font-weight: 800; }
.page-hero p { color: #b9cbe6; margin-top: 12px; font-size: 16.5px; max-width: 640px; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-950); color: #93a5c4; margin-top: 0; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.3fr; gap: 40px; padding: 64px 0 48px; }
.footer-brand img { height: 40px; margin-bottom: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.7; max-width: 300px; }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 18px; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: #93a5c4; font-size: 14px; }
.footer-col a:hover { color: #fff; }
.footer-contact li { display: flex; gap: 10px; font-size: 14px; margin-bottom: 12px; align-items: flex-start; }
.footer-contact svg { width: 17px; height: 17px; color: var(--cyan-400); flex-shrink: 0; margin-top: 3px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 22px 0; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; font-size: 13px; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; bottom: 28px; left: 50%; transform: translateX(-50%) translateY(20px);
  background: var(--navy-800); color: #fff; padding: 13px 24px; border-radius: 12px;
  font-size: 14.5px; box-shadow: var(--shadow-lg); opacity: 0; pointer-events: none;
  transition: all .3s; z-index: 200;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .cat-grid, .prod-grid { grid-template-columns: repeat(3, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 820px) {
  .main-nav {
    position: fixed; inset: 72px 0 auto 0; background: var(--white);
    flex-direction: column; align-items: stretch; padding: 16px 6vw 24px;
    border-bottom: 1px solid var(--line); display: none; box-shadow: var(--shadow-lg);
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 13px 14px; }
  .nav-toggle { display: block; }
  .header-cta { display: none; }
  .cat-grid, .prod-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
  .sol-grid { grid-template-columns: 1fr; }
  .about-grid, .contact-grid, .pd-top { grid-template-columns: 1fr; }
  .pd-gallery { position: static; }
  .hero-stats, .stats-band { grid-template-columns: repeat(2, 1fr); }
  .hero-inner { padding: 64px 0 56px; }
  .cta-band { padding: 40px 26px; }
}
@media (max-width: 520px) {
  .cat-grid, .prod-grid, .news-grid, .features-grid, .app-list, .feature-list { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .brand-name { display: none; }
  .hero-cta .btn { width: 100%; }
  .sol-card .sol-points { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
}

/* ---------- News article detail ---------- */
.news-article {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 44px 48px; max-width: 880px; margin: 0 auto;
}
.news-article .date { font-size: 14px; color: var(--muted); font-weight: 600; }
.news-article h1 { font-size: clamp(24px, 3vw, 34px); font-weight: 800; color: var(--navy-800); margin: 10px 0 14px; line-height: 1.3; }
.news-article .lead { font-size: 16px; color: var(--muted); border-left: 3px solid var(--blue-600); padding-left: 16px; margin: 0 0 28px; }
.news-body { font-size: 15.5px; color: var(--ink); line-height: 1.85; }
.news-body h2, .news-body h3, .news-body h4 { color: var(--navy-800); margin: 28px 0 12px; line-height: 1.4; }
.news-body h2 { font-size: 22px; }
.news-body h3 { font-size: 19px; }
.news-body p { margin: 0 0 16px; }
.news-body ul, .news-body ol { margin: 0 0 16px; padding-left: 24px; }
.news-body ul { list-style: disc; }
.news-body ol { list-style: decimal; }
.news-body li { margin-bottom: 8px; }
.news-body img { border-radius: 10px; margin: 12px 0; max-width: 100%; height: auto; }
.news-body table { width: 100%; border-collapse: collapse; margin: 16px 0; font-size: 14px; background: var(--white); }
.news-body th, .news-body td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: top; }
.news-body th { background: var(--navy-800); color: #fff; font-weight: 600; }
.news-body tr:nth-child(even) td { background: #fafcff; }
.news-body a { color: var(--blue-600); }
.news-body blockquote { border-left: 3px solid var(--cyan-400); margin: 16px 0; padding: 8px 16px; color: var(--muted); background: var(--bg); border-radius: 0 8px 8px 0; }
.news-body pre { background: var(--navy-900); color: #cfe3ff; padding: 16px; border-radius: 10px; overflow-x: auto; font-size: 13.5px; }
.news-body code { font-family: Consolas, Menlo, monospace; }
.news-body iframe { max-width: 100%; border-radius: 10px; }
.news-body figure { margin: 16px 0; }
@media (max-width: 640px) {
  .news-article { padding: 28px 20px; }
}