/* ============================================================
   E-Trend-IR · 官网优化版样式
   设计语言：深空蓝底 + 热成像渐变（青→橙）+ 玻璃拟态
   ============================================================ */

:root {
  --bg-deep: #070B1E;
  --bg-deep-2: #0A0E27;
  --bg-panel: #111634;
  --bg-elevated: #1A2046;
  --accent-cyan: #19E3FF;
  --accent-hot: #FF7A3D;
  --accent-warn: #FFD166;
  --text-main: #F4F7FF;
  --text-muted: #9AA7C7;
  --text-dim: #6B779A;
  --border: rgba(25, 227, 255, 0.14);
  --border-soft: rgba(255, 255, 255, 0.07);
  --grad-thermal: linear-gradient(120deg, #19E3FF 0%, #4DA8FF 38%, #FF7A3D 100%);
  --grad-thermal-soft: linear-gradient(120deg, rgba(25,227,255,.18), rgba(255,122,61,.18));
  --shadow-card: 0 18px 50px -20px rgba(0, 0, 0, .65);
  --radius: 18px;
  --maxw: 1200px;
  --font: "Inter", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  background: var(--bg-deep);
  color: var(--text-main);
  font-family: var(--font);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* 背景光晕与网格 */
.bg-fx {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background:
    radial-gradient(900px 600px at 12% -5%, rgba(25, 227, 255, .14), transparent 60%),
    radial-gradient(800px 600px at 95% 8%, rgba(255, 122, 61, .12), transparent 55%),
    radial-gradient(700px 700px at 50% 120%, rgba(77, 168, 255, .10), transparent 60%),
    var(--bg-deep);
}
.grid-fx {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: .5;
  background-image:
    linear-gradient(rgba(25, 227, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(25, 227, 255, .045) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(circle at 50% 30%, black, transparent 85%);
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

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

.gradient-text {
  background: var(--grad-thermal);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

/* ===================== Header ===================== */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(7, 11, 30, .72);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-soft);
  transition: background .3s ease, border-color .3s ease;
}
.site-header.scrolled { background: rgba(7, 11, 30, .92); border-color: var(--border); }
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 800; font-size: 1.25rem; letter-spacing: .5px; }
.brand .mark {
  width: 34px; height: 34px; border-radius: 9px;
  background: var(--grad-thermal); display: grid; place-items: center;
  color: #06121f; font-weight: 900; box-shadow: 0 6px 18px rgba(25, 227, 255, .35);
}
.brand .sub { font-size: .68rem; color: var(--text-dim); letter-spacing: 2px; font-weight: 600; }

.nav-links { display: flex; align-items: center; gap: 34px; }
.nav-links a {
  position: relative; font-size: .94rem; color: var(--text-muted); font-weight: 500;
  transition: color .2s ease; padding: 6px 0;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: -2px; height: 2px; width: 0;
  background: var(--grad-thermal); transition: width .25s ease; border-radius: 2px;
}
.nav-links a:hover, .nav-links a.active { color: var(--text-main); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-weight: 600; font-size: .94rem; border-radius: 999px; cursor: pointer;
  border: 1px solid transparent; transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
  padding: 11px 22px; white-space: nowrap;
}
.btn-primary {
  background: var(--grad-thermal); color: #06121f;
  box-shadow: 0 10px 26px -8px rgba(25, 227, 255, .5);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 34px -8px rgba(255, 122, 61, .5); }
.btn-ghost {
  background: rgba(255, 255, 255, .04); color: var(--text-main);
  border-color: var(--border);
}
.btn-ghost:hover { border-color: var(--accent-cyan); color: var(--accent-cyan); transform: translateY(-2px); }

.nav-cta { padding: 9px 18px; font-size: .88rem; }

.lang-btn {
  height: 36px; padding: 0 14px; border-radius: 999px; cursor: pointer;
  background: rgba(25, 227, 255, .08); border: 1px solid var(--border);
  color: var(--accent-cyan); font-size: .82rem; font-weight: 700; letter-spacing: 1px;
  transition: all .2s ease; white-space: nowrap;
}
.lang-btn:hover { background: var(--grad-thermal); color: #06121f; border-color: transparent; }

.menu-btn { display: none; background: none; border: 0; color: var(--text-main); cursor: pointer; padding: 8px; }

/* ===================== Hero ===================== */
.hero { position: relative; padding: 150px 0 90px; overflow: hidden; }
.hero-inner { max-width: 880px; margin: 0 auto; text-align: center; position: relative; z-index: 2; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 16px; border-radius: 999px; font-size: .8rem; font-weight: 600;
  color: var(--accent-cyan); background: rgba(25, 227, 255, .08);
  border: 1px solid var(--border); margin-bottom: 26px;
}
.eyebrow .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent-cyan); box-shadow: 0 0 10px var(--accent-cyan); }
.hero h1 { font-size: clamp(2.6rem, 6vw, 4.6rem); line-height: 1.08; font-weight: 800; letter-spacing: -1px; }
.hero-en {
  display: block; margin-top: 18px; font-size: .76rem; font-weight: 600;
  letter-spacing: 5px; color: var(--text-dim); text-transform: uppercase;
}
.hero p.lead { margin: 22px auto 0; max-width: 620px; font-size: clamp(1.02rem, 1.6vw, 1.22rem); color: var(--text-muted); }
.hero-actions { margin-top: 38px; display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-visual {
  margin: 64px auto 0; max-width: 940px; position: relative; z-index: 2;
  border-radius: 26px; overflow: hidden; border: 1px solid var(--border);
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, .75);
  background:
    radial-gradient(70% 100% at 50% 0%, rgba(25, 227, 255, .12), transparent 60%),
    radial-gradient(60% 80% at 12% 100%, rgba(255, 122, 61, .08), transparent 60%),
    radial-gradient(60% 80% at 88% 100%, rgba(77, 168, 255, .10), transparent 60%),
    linear-gradient(160deg, #0d1330, #141a3e);
}
.hero-visual::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px; z-index: 3;
  background: var(--grad-thermal); opacity: .8;
}
.hero-matrix {
  display: grid; grid-template-columns: 1fr 1.28fr 1fr;
  align-items: end; gap: 10px; padding: 44px 34px 26px;
}
.hm-item {
  position: relative; display: flex; flex-direction: column; align-items: center; gap: 18px;
  cursor: pointer;
}
.hm-img {
  position: relative; width: 100%; display: grid; place-items: center;
  padding: 6px 0 4px;
}
.hm-img::after {
  content: ""; position: absolute; bottom: -8px; left: 50%; transform: translateX(-50%);
  width: 74%; height: 24px; z-index: 0; pointer-events: none;
  background: radial-gradient(50% 50% at 50% 50%, rgba(25, 227, 255, .42), rgba(255, 122, 61, .20) 58%, transparent 78%);
  filter: blur(13px);
}
.hm-img img {
  position: relative; z-index: 2; width: auto; max-width: 88%; max-height: 158px; object-fit: contain;
  filter: drop-shadow(0 20px 32px rgba(0, 0, 0, .55)) drop-shadow(0 0 24px rgba(25, 227, 255, .10));
  transition: transform .4s cubic-bezier(.2, .7, .2, 1), filter .4s ease;
}
.hm-center .hm-img img { max-height: 182px; max-width: 92%; }
.hm-item:hover .hm-img img {
  transform: translateY(-8px);
  filter: drop-shadow(0 30px 40px rgba(0, 0, 0, .6)) drop-shadow(0 0 34px rgba(25, 227, 255, .26));
}
.hm-name { position: relative; z-index: 2; }
.hm-meta { display: flex; flex-direction: column; align-items: center; gap: 7px; }
.hm-name { font-size: 1.04rem; font-weight: 700; letter-spacing: .4px; color: var(--text-main); }
.hm-tag {
  font-size: .72rem; font-weight: 600; letter-spacing: .4px; color: var(--accent-cyan);
  background: rgba(25, 227, 255, .08); border: 1px solid var(--border);
  padding: 3px 12px; border-radius: 999px; white-space: nowrap;
}
.hm-center .hm-name { font-size: 1.16rem; }
.hm-center .hm-tag { color: var(--accent-hot); background: rgba(255, 122, 61, .10); border-color: rgba(255, 122, 61, .32); }
.hero-caption {
  border-top: 1px solid var(--border-soft); background: rgba(7, 11, 30, .72);
  padding: 14px 18px; text-align: center; font-size: .95rem; font-weight: 600;
  color: var(--text-main); letter-spacing: 1px;
}
.hero-caption span { margin-left: 12px; font-size: .8rem; font-weight: 500; color: var(--text-muted); letter-spacing: 2px; }
@media (max-width: 760px) {
  .hero-matrix { grid-template-columns: 1fr; padding: 30px 18px 18px; gap: 26px; }
  .hm-center { transform: none; }
  .hm-item { max-width: 340px; margin: 0 auto; }
  .hm-img img { max-height: 190px; }
  .hm-center .hm-img img { max-height: 200px; }
}

/* ===================== Stats ===================== */
.stats { padding: 30px 0 10px; }
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
}
.stat-card {
  background: rgba(17, 22, 52, .6); border: 1px solid var(--border-soft);
  border-radius: var(--radius); padding: 30px 20px; text-align: center;
  backdrop-filter: blur(8px); transition: transform .3s ease, border-color .3s ease;
}
.stat-card:hover { transform: translateY(-4px); border-color: var(--border); }
.stat-num { font-size: 2.8rem; font-weight: 800; line-height: 1; }
.stat-label { margin-top: 8px; color: var(--text-muted); font-size: .92rem; }

/* ===================== Section ===================== */
.section { padding: 92px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 52px; }
.section-head .tag {
  display: inline-block; font-size: .78rem; font-weight: 700; letter-spacing: 2px;
  text-transform: uppercase; color: var(--accent-cyan); margin-bottom: 14px;
}
.section-head h2 { font-size: clamp(1.8rem, 3.6vw, 2.7rem); font-weight: 800; letter-spacing: -.5px; }
.section-head p { margin-top: 14px; color: var(--text-muted); font-size: 1.05rem; }

/* ===================== Solutions ===================== */
.sol-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.sol-card {
  position: relative; overflow: hidden; cursor: pointer;
  background: rgba(17, 22, 52, .55); border: 1px solid var(--border-soft);
  border-radius: 22px; transition: transform .3s ease, border-color .3s ease, background .3s ease;
}
.sol-card:hover { transform: translateY(-6px); border-color: var(--border); background: rgba(26, 32, 70, .7); }
.sol-card .glow {
  position: absolute; right: -60px; top: -60px; width: 180px; height: 180px; border-radius: 50%;
  background: var(--grad-thermal-soft); filter: blur(30px); opacity: .5; z-index: 1;
}
.sol-icon {
  width: 60px; height: 60px; border-radius: 16px; display: grid; place-items: center;
  font-size: 1.7rem; background: rgba(25, 227, 255, .1); border: 1px solid var(--border); margin-bottom: 18px;
}
.sol-thumb { position: relative; aspect-ratio: 21 / 10; overflow: hidden; }
.sol-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.sol-card:hover .sol-thumb img { transform: scale(1.05); }
.sol-thumb::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(7, 11, 30, .85)); }
.sol-badge {
  position: absolute; bottom: 12px; right: 14px; z-index: 2;
  font-size: .72rem; font-weight: 700; letter-spacing: .5px;
  padding: 5px 12px; border-radius: 999px;
  background: rgba(7, 11, 30, .75); border: 1px solid var(--border); color: var(--accent-cyan);
  backdrop-filter: blur(6px);
}
.sol-body { position: relative; z-index: 2; padding: 22px 26px 26px; }
.sol-body h3 { font-size: 1.35rem; font-weight: 700; margin-bottom: 8px; }
.sol-card .sol-sub { color: var(--accent-cyan); font-size: .9rem; font-weight: 600; margin-bottom: 14px; }
.sol-card ul { list-style: none; display: grid; gap: 8px; }
.sol-card li { color: var(--text-muted); font-size: .92rem; padding-left: 20px; position: relative; }
.sol-card li::before { content: ""; position: absolute; left: 0; top: 9px; width: 7px; height: 7px; border-radius: 2px; background: var(--grad-thermal); }
.sol-clients { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 16px; }
.sol-clients span {
  font-size: .76rem; color: var(--text-muted); padding: 4px 11px; border-radius: 999px;
  background: rgba(255, 255, 255, .04); border: 1px solid var(--border-soft);
}
.sol-clients em { font-style: normal; font-size: .76rem; color: var(--accent-cyan); font-weight: 700; }
.sol-more { margin-top: 16px; color: var(--accent-cyan); font-size: .88rem; font-weight: 600; display: inline-flex; gap: 6px; align-items: center; }

/* ===================== Tabs ===================== */
.tabs { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: 40px; }
.tab-btn {
  padding: 9px 20px; border-radius: 999px; font-size: .9rem; font-weight: 600; cursor: pointer;
  background: rgba(17, 22, 52, .6); border: 1px solid var(--border-soft); color: var(--text-muted);
  transition: all .2s ease;
}
.tab-btn:hover { color: var(--text-main); border-color: var(--border); }
.tab-btn.active { color: #06121f; background: var(--grad-thermal); border-color: transparent; }

/* ===================== Product grid ===================== */
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.prod-card {
  position: relative; cursor: pointer; overflow: hidden;
  background: rgba(17, 22, 52, .55); border: 1px solid var(--border-soft);
  border-radius: 22px; padding: 16px; transition: transform .3s ease, border-color .3s ease;
}
.prod-card:hover { transform: translateY(-6px); border-color: var(--border); }
.prod-thumb {
  position: relative; height: 235px; border-radius: 14px; overflow: hidden;
  background: linear-gradient(160deg, #0e1535, #18204a); border: 1px solid var(--border-soft);
  display: grid; place-items: center;
}
.prod-thumb img { max-width: 100%; max-height: 200px; width: auto; height: auto; transition: transform .5s ease; }
.prod-card:hover .prod-thumb img { transform: scale(1.04); }
.prod-thumb .fallback { font-size: 2.4rem; opacity: .35; }
.prod-badge {
  position: absolute; top: 12px; left: 12px; font-size: .68rem; font-weight: 700;
  padding: 4px 10px; border-radius: 999px; background: rgba(7, 11, 30, .8);
  border: 1px solid var(--border); color: var(--accent-cyan); letter-spacing: .5px;
}
.prod-body { padding: 16px 6px 6px; }
.prod-body h3 { font-size: 1.16rem; font-weight: 700; }
.prod-body .spec { color: var(--text-muted); font-size: .84rem; margin-top: 6px; min-height: 38px; }
.prod-foot { display: flex; align-items: center; justify-content: space-between; margin-top: 12px; }
.prod-foot .cat { font-size: .76rem; color: var(--text-dim); }
.prod-foot .more { font-size: .84rem; font-weight: 600; color: var(--accent-cyan); display: inline-flex; gap: 5px; align-items: center; }

/* ===================== Customers ===================== */
.clients { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; max-width: 880px; margin: 0 auto; }
.client-pill {
  padding: 10px 20px; border-radius: 999px; font-size: .9rem; color: var(--text-muted);
  background: rgba(17, 22, 52, .5); border: 1px solid var(--border-soft); transition: all .2s ease;
}
.client-pill:hover { color: var(--text-main); border-color: var(--border); background: rgba(26, 32, 70, .6); }

/* ===================== Contact CTA ===================== */
.contact-cta {
  background: linear-gradient(160deg, rgba(17, 22, 52, .9), rgba(26, 32, 70, .7));
  border: 1px solid var(--border); border-radius: 28px; padding: 56px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
  box-shadow: var(--shadow-card);
}
.contact-cta h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); font-weight: 800; }
.contact-cta p { color: var(--text-muted); margin-top: 14px; font-size: 1.04rem; }
.contact-info { margin-top: 26px; display: grid; gap: 14px; }
.contact-info .row { display: flex; align-items: center; gap: 12px; color: var(--text-muted); font-size: .98rem; }
.contact-info .ic { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; background: var(--grad-thermal-soft); border: 1px solid var(--border); }

/* ===================== Form ===================== */
.form { display: grid; gap: 14px; }
.form .grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field label { display: block; font-size: .8rem; color: var(--text-muted); margin-bottom: 6px; }
.field input, .field textarea {
  width: 100%; padding: 12px 14px; border-radius: 12px; font-size: .95rem; font-family: inherit;
  background: rgba(7, 11, 30, .6); border: 1px solid var(--border-soft); color: var(--text-main);
  transition: border-color .2s ease, box-shadow .2s ease; outline: none;
}
.field input:focus, .field textarea:focus { border-color: var(--accent-cyan); box-shadow: 0 0 0 3px rgba(25, 227, 255, .15); }
.field textarea { resize: vertical; min-height: 96px; }
.form .btn-primary { width: 100%; padding: 14px; font-size: 1rem; margin-top: 4px; }
.form-note { font-size: .78rem; color: var(--text-dim); text-align: center; }
.form-success {
  display: none; text-align: center; padding: 30px 10px;
}
.form-success.show { display: block; animation: pop .4s ease; }
.form-success .check {
  width: 64px; height: 64px; border-radius: 50%; margin: 0 auto 16px; display: grid; place-items: center;
  background: var(--grad-thermal); color: #06121f; font-size: 2rem;
}
@keyframes pop { from { transform: scale(.85); opacity: 0; } to { transform: scale(1); opacity: 1; } }

/* ===================== Footer ===================== */
.site-footer { border-top: 1px solid var(--border-soft); background: rgba(7, 11, 30, .7); margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 32px; padding: 56px 0 36px; }
.footer-col h4 { font-size: .95rem; font-weight: 700; margin-bottom: 16px; color: var(--text-main); }
.footer-col ul { list-style: none; display: grid; gap: 10px; }
.footer-col a, .footer-col li { color: var(--text-muted); font-size: .9rem; transition: color .2s ease; }
.footer-col a:hover { color: var(--accent-cyan); }
.footer-col p { color: var(--text-muted); font-size: .9rem; margin-top: 10px; }
.footer-bottom { border-top: 1px solid var(--border-soft); padding: 20px 0; text-align: center; color: var(--text-dim); font-size: .82rem; }

/* ===================== Modal ===================== */
.modal-overlay {
  position: fixed; inset: 0; z-index: 200; background: rgba(4, 7, 20, .78);
  backdrop-filter: blur(6px); display: none; align-items: flex-start; justify-content: center;
  padding: 40px 18px; overflow-y: auto;
}
.modal-overlay.open { display: flex; animation: fade .25s ease; }
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }
.modal {
  width: 100%; max-width: 960px; background: var(--bg-deep-2); border: 1px solid var(--border);
  border-radius: 24px; overflow: hidden; box-shadow: 0 30px 80px -20px rgba(0, 0, 0, .8);
  animation: rise .3s ease;
}
@keyframes rise { from { transform: translateY(24px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.modal-close {
  position: absolute; top: 18px; right: 18px; z-index: 5; width: 40px; height: 40px; border-radius: 50%;
  background: rgba(7, 11, 30, .7); border: 1px solid var(--border); color: var(--text-main);
  font-size: 1.2rem; cursor: pointer; display: grid; place-items: center; transition: all .2s ease;
}
.modal-close:hover { background: var(--accent-hot); color: #06121f; }
.modal-hero { position: relative; display: grid; grid-template-columns: 1fr 1fr; }
.modal-hero .m-img { background: linear-gradient(160deg, #0e1535, #18204a); height: 430px; display: grid; place-items: center; border-right: 1px solid var(--border-soft); }
.modal-hero .m-img img { max-width: 88%; max-height: 370px; width: auto; height: auto; }
/* 解决方案弹窗：通栏横幅，完整显示不裁剪 */
.sol-banner {
  background:
    radial-gradient(70% 100% at 50% 0%, rgba(25, 227, 255, .10), transparent 60%),
    linear-gradient(160deg, #0e1535, #18204a);
  border-bottom: 1px solid var(--border-soft);
  display: grid; place-items: center;
  min-height: 220px; max-height: 380px; overflow: hidden;
}
.sol-banner img { max-width: 100%; max-height: 360px; width: auto; height: auto; object-fit: contain; padding: 18px 30px; margin: 0 auto; }
.sol-banner-info { padding: 30px 36px 6px; display: flex; flex-direction: column; }
@media (max-width: 560px) { .sol-banner { min-height: 160px; max-height: 260px; } .sol-banner img { padding: 14px 16px; } .sol-banner-info { padding: 22px 24px 4px; } }
.modal-hero .m-info { padding: 36px; display: flex; flex-direction: column; justify-content: center; }
.modal-hero .m-cat { font-size: .8rem; font-weight: 700; color: var(--accent-cyan); letter-spacing: 1px; }
.modal-hero h2 { font-size: 1.9rem; font-weight: 800; margin: 8px 0; }
.modal-hero .m-sub { color: var(--text-muted); }
.modal-hero .m-actions { margin-top: 22px; display: flex; gap: 12px; flex-wrap: wrap; }
.modal-body { padding: 8px 36px 36px; }
.m-tabs { display: flex; gap: 6px; border-bottom: 1px solid var(--border-soft); margin: 6px 0 26px; flex-wrap: wrap; }
.m-tab { padding: 12px 16px; font-size: .92rem; font-weight: 600; color: var(--text-muted); cursor: pointer; border-bottom: 2px solid transparent; transition: all .2s ease; }
.m-tab.active { color: var(--text-main); border-color: var(--accent-cyan); }
.m-panel { display: none; animation: fade .25s ease; }
.m-panel.active { display: block; }
.m-panel p.overview { color: var(--text-muted); font-size: 1.02rem; line-height: 1.85; }

/* spec table */
.spec-table { width: 100%; border-collapse: collapse; border: 1px solid var(--border-soft); border-radius: 14px; overflow: hidden; }
.spec-table tr { border-bottom: 1px solid var(--border-soft); }
.spec-table tr:last-child { border-bottom: 0; }
.spec-table th, .spec-table td { padding: 13px 16px; text-align: left; font-size: .92rem; vertical-align: top; }
.spec-table th { width: 38%; color: var(--text-muted); font-weight: 600; background: rgba(17, 22, 52, .5); }
.spec-table td { color: var(--text-main); }

/* spec groups (categorized params) */
.spec-groups { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.spec-group { background: rgba(17, 22, 52, .4); border: 1px solid var(--border-soft); border-radius: 16px; overflow: hidden; }
.spec-group-title { font-size: .92rem; font-weight: 700; color: var(--accent-cyan); padding: 12px 16px; background: rgba(25, 227, 255, .07); border-bottom: 1px solid var(--border-soft); letter-spacing: .03em; }
.spec-group .spec-table { border: 0; border-radius: 0; }
.spec-group .spec-table tr:last-child { border-bottom: 1px solid var(--border-soft); }
.spec-group .spec-table th, .spec-group .spec-table td { padding: 10px 16px; font-size: .88rem; }
.spec-group .spec-table th { width: 42%; }

/* feature grid */
.feat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.feat-item { background: rgba(17, 22, 52, .5); border: 1px solid var(--border-soft); border-radius: 14px; padding: 20px; }
.feat-item .num { font-size: .8rem; font-weight: 800; color: var(--accent-cyan); }
.feat-item h4 { font-size: 1.02rem; font-weight: 700; margin: 8px 0 6px; }
.feat-item p { font-size: .88rem; color: var(--text-muted); }

/* cases */
.case-list { display: grid; gap: 12px; }
.case-shots { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; margin-bottom: 20px; }
.case-shot { margin: 0; border-radius: 12px; overflow: hidden; background: rgba(17, 22, 52, .5); border: 1px solid var(--border-soft); }
.case-shot img { display: block; width: 100%; height: 168px; object-fit: cover; }
.case-shot figcaption { padding: 10px 13px 12px; display: grid; gap: 3px; }
.case-shot figcaption strong { font-size: .92rem; font-weight: 700; color: var(--text-main); }
.case-shot figcaption span { font-size: .8rem; line-height: 1.5; color: var(--text-muted); }
.case-item { display: flex; gap: 14px; padding: 16px; border-radius: 14px; background: rgba(17, 22, 52, .5); border: 1px solid var(--border-soft); }
.case-item .arrow { color: var(--accent-hot); font-weight: 800; }
.case-item strong { font-weight: 700; }
.case-item p { font-size: .9rem; color: var(--text-muted); margin-top: 3px; }

/* scenarios gallery */
.panel-title { font-size: 1.05rem; font-weight: 700; margin: 4px 0 16px; color: var(--text-main); }
.scene-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.scene-item { margin: 0; border-radius: 16px; overflow: hidden; border: 1px solid var(--border-soft); background: rgba(17, 22, 52, .5); position: relative; }
.scene-item img { width: 100%; height: 200px; object-fit: cover; display: block; transition: transform .5s ease; }
.scene-item:hover img { transform: scale(1.05); }
.scene-item figcaption { padding: 12px 14px; font-size: .9rem; color: var(--text-muted); border-top: 1px solid var(--border-soft); }
.scene-item figcaption b { color: var(--accent-cyan); font-weight: 700; }

/* lens table */
.lens-table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.lens-table th, .lens-table td { padding: 10px 12px; border-bottom: 1px solid var(--border-soft); text-align: left; }
.lens-table th { color: var(--accent-cyan); font-weight: 700; background: rgba(17, 22, 52, .5); }
.lens-table tr:hover td { background: rgba(26, 32, 70, .4); }

/* solution detail list (in modal) */
.sol-detail-list { list-style: none; display: grid; gap: 12px; }
.sol-detail-list li { display: flex; gap: 12px; color: var(--text-muted); font-size: 1rem; padding: 14px 16px; background: rgba(17, 22, 52, .5); border: 1px solid var(--border-soft); border-radius: 12px; }
.sol-detail-list li .arrow { color: var(--accent-hot); font-weight: 800; }

/* solution scenes (in modal) */
.sol-cover { color: var(--accent-cyan); font-size: 1rem; font-weight: 600; margin-bottom: 18px; }
.sol-scene-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.sol-scene { background: rgba(17, 22, 52, .5); border: 1px solid var(--border-soft); border-radius: 12px; padding: 16px 18px; transition: border-color .25s ease, transform .25s ease; }
.sol-scene:hover { border-color: var(--accent-cyan); transform: translateY(-2px); }
.sol-scene h4 { font-size: 1rem; font-weight: 700; color: var(--text-main); margin-bottom: 8px; }
.sol-scene h4::before { content: "▸ "; color: var(--accent-hot); }
.sol-scene p { font-size: .9rem; color: var(--text-muted); line-height: 1.65; }
.sol-value { margin-top: 18px; padding: 14px 18px; border-radius: 12px; background: linear-gradient(90deg, rgba(255,122,61,.12), rgba(25,227,255,.08)); border: 1px solid var(--border-soft); color: var(--accent-hot); font-weight: 700; font-size: .95rem; }
@media (max-width: 720px) { .sol-scene-grid { grid-template-columns: 1fr; } }

/* ===================== Reveal animation ===================== */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ===================== Responsive ===================== */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .menu-btn { display: block; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .sol-grid { grid-template-columns: 1fr; }
  .prod-grid { grid-template-columns: repeat(2, 1fr); }
  .feat-grid { grid-template-columns: 1fr; }
  .spec-groups { grid-template-columns: 1fr; }
  .contact-cta { grid-template-columns: 1fr; padding: 36px; }
  .modal-hero { grid-template-columns: 1fr; }
  .modal-hero .m-img { border-right: 0; border-bottom: 1px solid var(--border-soft); height: 340px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .prod-grid { grid-template-columns: 1fr; }
  .form .grid-2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
  .modal-body, .modal-hero .m-info { padding: 24px; }
}

/* mobile menu */
.mobile-menu {
  display: none; flex-direction: column; gap: 4px; padding: 12px 0 18px;
  border-top: 1px solid var(--border-soft);
}
.mobile-menu.open { display: flex; }
.mobile-menu a { padding: 12px 8px; color: var(--text-muted); font-weight: 600; border-radius: 10px; }
.mobile-menu a:hover { background: rgba(26, 32, 70, .6); color: var(--text-main); }