/* =========================================================================
   Lumina / 鹿明智能 官网设计系统
   复刻 Stitch "Auralis" —— Engineered Softness
   纯手写、零外网依赖、国内可用、响应式
   ========================================================================= */

/* ---------- Design Tokens ---------- */
:root {
  /* Surfaces (light blue neutrals) */
  --bg: #f5f8fc;
  --panel: #edf2f8;
  --card: #fbfdff;
  --surface-variant: #e0e8f3;
  --border: #d5e0ed;
  --border-strong: #c0d0e0;

  /* Text */
  --ink: #0f172a;
  --ink-soft: #334155;
  --muted: #5a6b7d;
  --muted-2: #7a8fa3;

  /* Brand / primary */
  --primary: #2563eb;
  --on-primary: #ffffff;

  /* Accent glows */
  --indigo: #6366f1;
  --purple: #a855f7;
  --blue: #3b82f6;
  --sky: #38bdf8;
  --emerald: #10b981;
  --teal: #14b8a6;
  --rose: #f43f5e;
  --orange: #fb923c;

  /* Radius */
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 24px;
  --r-2xl: 28px;
  --r-full: 9999px;

  /* Layout */
  --max: 1280px;
  --pad: 32px;
  --nav-h: 72px;
  --section-gap: 140px;

  /* Shadows (used sparingly — tonal layering preferred) */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .04);
  --shadow-card: 0 24px 60px -28px rgba(15, 23, 42, .14);
  --shadow-glass: 0 48px 96px -24px rgba(0, 0, 0, .25), inset 0 0 0 1px rgba(255, 255, 255, .4);

  /* Fonts: 强系统栈为主，渐进增强 Inter（国内镜像） */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC",
    system-ui, sans-serif;
  --font-mono: "SFMono-Regular", "JetBrains Mono", Menlo, Consolas, monospace;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
main { flex: 1; }
h1, h2, h3, h4, h5, h6, p, ul, ol, figure { margin: 0; }
ul, ol { list-style: none; padding: 0; }
a { color: inherit; text-decoration: none; }
img, svg, video { display: block; max-width: 100%; }
button { font-family: inherit; border: none; background: none; cursor: pointer; color: inherit; }
input, textarea, select { font-family: inherit; font-size: inherit; }

/* ---------- Typography ---------- */
.display {
  font-weight: 600;
  line-height: 1.04;
  letter-spacing: -0.04em;
  font-size: clamp(2.5rem, 1.6rem + 4.5vw, 5.25rem); /* 40 -> 84px */
}
.h2 {
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.03em;
  font-size: clamp(2rem, 1.3rem + 3vw, 4rem); /* 32 -> 64px */
}
.h2-md {
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.025em;
  font-size: clamp(1.75rem, 1.2rem + 2vw, 3rem); /* 28 -> 48px */
}
.h3 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  font-size: 1.25rem;
}
.lead {
  font-size: clamp(1rem, .95rem + .3vw, 1.125rem);
  line-height: 1.65;
  color: var(--muted);
  letter-spacing: -0.01em;
}
.label-caps {
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}
.text-muted { color: var(--muted); }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--pad); }
.section { margin-bottom: var(--section-gap); }
.section-lg { margin-bottom: clamp(80px, 6vw + 40px, 180px); }
main { padding-top: var(--nav-h); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 500;
  font-size: 0.95rem;
  padding: 12px 26px;
  border-radius: var(--r-full);
  transition: transform .25s ease, background-color .25s ease, box-shadow .25s ease, opacity .25s ease, border-color .25s ease;
  white-space: nowrap;
}
.btn-sm { padding: 8px 18px; font-size: 0.85rem; }
.btn-primary { background: var(--primary); color: var(--on-primary); }
.btn-primary:hover { transform: none; box-shadow: none; }
.btn-outline { background: transparent; color: var(--ink); border: 1px solid var(--border-strong); }
.btn-outline:hover { background: var(--surface-variant); border-color: var(--muted-2); }
.btn-ghost { color: var(--ink); }
.btn-ghost:hover { color: var(--muted); }
.btn .btn-ico { display: inline-flex; align-items: center; }
.btn .btn-ico svg { width: 18px; height: 18px; }
.section-cta { text-align: center; margin-top: 44px; }

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--nav-h);
  z-index: 100;
  background: rgba(245, 248, 252, .8);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s ease, background-color .3s ease;
}
.nav.scrolled { border-bottom-color: var(--border); background: rgba(245, 248, 252, .92); }
.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-left { display: flex; align-items: center; gap: 44px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { height: 27px; width: auto; display: block; }
.brand-wordmark { font-weight: 700; font-size: 1.3rem; letter-spacing: -0.03em; color: var(--ink); }
.brand .brand-cn { font-size: .8rem; color: var(--muted); letter-spacing: .02em; padding-left: 10px; border-left: 1px solid var(--border-strong); }
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: -0.01em;
  transition: color .2s ease;
}
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
.nav-right { display: flex; align-items: center; gap: 16px; }
.nav-lang { font-size: .82rem; color: var(--muted); cursor: pointer; user-select: none; }
.nav-lang b { color: var(--ink); font-weight: 600; }
.hamburger { display: none; flex-direction: column; gap: 5px; padding: 6px; }
.hamburger span { width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: .3s; }
.menu-hint { display: none; font-size: .72rem; color: var(--indigo); font-weight: 600; letter-spacing: .08em; white-space: nowrap; background: linear-gradient(135deg, #eef2ff, #ede9fe); border-radius: 20px; padding: 3px 10px; line-height: 1.4; animation: hintPulse 2.5s ease-in-out infinite; box-shadow: 0 1px 4px rgba(99,102,241,.15); cursor: pointer; user-select: none; -webkit-tap-highlight-color: transparent; }
@keyframes hintPulse {
  0%, 100% { opacity: .8; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.04); }
}

/* mobile menu */
.mobile-menu {
  position: fixed;
  inset: var(--nav-h) 0 0 0;
  background: rgba(245, 248, 252, .98);
  backdrop-filter: blur(20px);
  z-index: 99;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a { font-size: 1.2rem; font-weight: 500; color: var(--muted); }
.mobile-menu a.active { color: var(--ink); }

/* ---------- Hero ---------- */
.hero { padding-top: 96px; }
.hero-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--pad);
  align-items: start;
}
.hero-main { grid-column: 1 / span 12; display: flex; flex-direction: column; gap: 28px; align-items: center; text-align: center; }
.hero-aside { display: none; }
.hero h1 .ink-grad {
  background: linear-gradient(120deg, #0f172a 30%, #3b82f6 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; margin-top: 6px; }
.hero-dots { display: flex; gap: 8px; margin-top: 26px; }
.hero-dots .dot { width: 8px; height: 8px; border-radius: var(--r-full); background: rgba(37, 99, 235, .18); cursor: pointer; transition: .3s; }
.hero-dots .dot.active { width: 26px; background: var(--primary); }
.hero-fade-text { animation: fadeUp .6s ease both; }

/* ---------- Product Panel (hero showcase) ---------- */
.panel {
  position: relative;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--r-2xl);
  padding: 28px;
  min-height: 560px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
}
.panel-row { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.seg {
  display: inline-flex;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-full);
  padding: 5px;
  gap: 2px;
}
.seg button {
  padding: 8px 18px;
  border-radius: var(--r-full);
  font-size: .85rem;
  font-weight: 500;
  color: var(--muted);
  transition: .25s;
}
.seg button.active { background: var(--card); color: var(--ink); box-shadow: var(--shadow-sm); }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-full);
  padding: 8px 16px;
  font-size: .85rem;
  font-weight: 500;
}
.dot-live { width: 8px; height: 8px; border-radius: 50%; background: var(--emerald); box-shadow: 0 0 0 0 rgba(16, 185, 129, .5); animation: pulse 2s infinite; }
.orbs { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; pointer-events: none; }
.orb { position: absolute; border-radius: 50%; filter: blur(70px); opacity: .85; }
.orb.a { width: 300px; height: 300px; background: linear-gradient(45deg, var(--rose), var(--orange)); margin-left: -160px; }
.orb.b { width: 400px; height: 400px; background: linear-gradient(45deg, var(--indigo), var(--purple)); }
.orb.c { width: 250px; height: 250px; background: linear-gradient(45deg, var(--emerald), var(--teal)); margin-left: 160px; margin-top: 80px; }
.orb.d { width: 340px; height: 340px; background: linear-gradient(45deg, var(--sky), var(--blue)); margin-left: 300px; margin-top: -80px; }
.play-btn {
  position: relative;
  z-index: 2;
  align-self: center;
  margin: auto 0;
  width: 84px;
  height: 84px;
  border-radius: 50%;
  background: var(--card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 20px 50px -20px rgba(0, 0, 0, .35);
  transition: transform .25s ease;
}
.play-btn:hover { transform: scale(1.06); }
.play-btn svg { width: 30px; height: 30px; margin-left: 4px; fill: var(--ink); }
.panel-bottom {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: rgba(245, 248, 252, .8);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 14px 16px;
  flex-wrap: wrap;
}
.panel-tags { display: flex; gap: 22px; overflow-x: auto; scrollbar-width: none; }
.panel-tags::-webkit-scrollbar { display: none; }
.panel-tags span { font-size: .85rem; font-weight: 500; color: var(--muted); white-space: nowrap; cursor: pointer; transition: color .2s ease; }
.panel-tags span:hover { color: var(--ink); }
.seg button { cursor: pointer; }
.panel-tags span.active { color: var(--ink); }

/* ---------- Trust + Marquee ---------- */
.trust { text-align: center; margin-bottom: 28px; }
.marquee { width: 100%; overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.marquee-track { display: flex; width: max-content; animation: marquee 38s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-set { display: flex; align-items: center; gap: 64px; padding-right: 64px; }
.brand-logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.05rem; letter-spacing: -0.02em; color: rgba(17, 17, 17, .26); white-space: nowrap; }
.brand-logo svg { width: 24px; height: 24px; opacity: .5; }

/* ---------- Section heads ---------- */
.section-head { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.section-head .lead { margin-top: 16px; }
.module-head { display: flex; align-items: center; gap: 16px; margin-bottom: 34px; }
.module-head .tag {
  background: var(--surface-variant);
  color: var(--ink);
  border-radius: var(--r-full);
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.module-head .rule { flex: 1; height: 1px; background: var(--border); }
.split { display: grid; grid-template-columns: repeat(12, 1fr); gap: 32px; margin-bottom: 48px; }
.split .split-title { grid-column: 1 / span 6; }
.split .split-body { grid-column: 7 / span 6; display: flex; align-items: flex-end; }

/* ---------- Cards ---------- */
.card {
  position: relative;
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card); border-color: var(--border-strong); }

.duo { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.glow-card { min-height: 320px; padding: 30px; display: flex; flex-direction: column; justify-content: space-between; }
.glow-card .glow { position: absolute; inset: 0; opacity: .6; transition: opacity .3s ease; }
.glow-card:hover .glow { opacity: .85; }
.glow-card .glow.violet { background: linear-gradient(135deg, rgba(99, 102, 241, .2), rgba(168, 85, 247, .34)); }
.glow-card .glow.green { background: linear-gradient(135deg, rgba(16, 185, 129, .2), rgba(20, 184, 166, .32)); }
.glow-card .glow.blue { background: linear-gradient(135deg, rgba(56, 189, 248, .22), rgba(59, 130, 246, .32)); }
.glow-card .glow.amber { background: linear-gradient(135deg, rgba(251, 146, 60, .22), rgba(244, 63, 94, .28)); }
.gc-orb { position: absolute; top: -50px; right: -50px; width: 240px; height: 240px; border-radius: 50%; filter: blur(60px); opacity: .55; pointer-events: none; }
.gc-orb.v { background: linear-gradient(135deg, var(--indigo), var(--purple)); }
.gc-orb.g { background: linear-gradient(135deg, var(--emerald), var(--teal)); }
.gc-orb.b { background: linear-gradient(135deg, var(--sky), var(--blue)); }
.gc-orb.a { background: linear-gradient(135deg, var(--orange), var(--rose)); }
.gc-top { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.glow-card .ico { width: 54px; height: 54px; border-radius: 16px; display: flex; align-items: center; justify-content: center; color: var(--ink); background: rgba(255, 255, 255, .55); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); border: 1px solid rgba(255, 255, 255, .7); box-shadow: 0 10px 24px -12px rgba(0, 0, 0, .25); }
.glow-card .ico svg { width: 26px; height: 26px; }
.gc-tag { font-size: 11px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-soft); background: rgba(255, 255, 255, .55); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); border: 1px solid rgba(255, 255, 255, .7); border-radius: var(--r-full); padding: 6px 12px; white-space: nowrap; }
.glow-card .cap { position: relative; z-index: 2; }
.glow-card .cap h4 { font-size: 1.5rem; font-weight: 600; letter-spacing: -0.025em; margin-bottom: 8px; }
.glow-card .cap p { font-size: .92rem; color: var(--ink-soft); max-width: 92%; }
.gc-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.gc-chips span { font-size: .78rem; font-weight: 500; color: var(--ink-soft); background: rgba(255, 255, 255, .55); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); border: 1px solid rgba(255, 255, 255, .65); border-radius: var(--r-full); padding: 5px 12px; }

/* feature mini cards */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.feature-cell {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: background .25s ease, transform .25s ease;
}
.feature-cell:hover { background: var(--surface-variant); transform: translateY(-3px); }
.feature-cell .ico svg { width: 24px; height: 24px; }
.feature-cell .ft { font-weight: 600; font-size: .95rem; }
.feature-cell .fd { font-size: .82rem; color: var(--muted); line-height: 1.55; }

/* showcase grid (video cards) */
.showcase-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.show-card { cursor: pointer; }
.show-thumb {
  position: relative;
  height: 188px;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.show-thumb .g { position: absolute; inset: 0; }
.show-thumb .g.violet { background: radial-gradient(120% 120% at 30% 20%, rgba(99,102,241,.5), rgba(168,85,247,.3) 50%, transparent 75%), var(--surface-variant); }
.show-thumb .g.green { background: radial-gradient(120% 120% at 70% 30%, rgba(16,185,129,.45), rgba(20,184,166,.28) 50%, transparent 75%), var(--surface-variant); }
.show-thumb .g.blue { background: radial-gradient(120% 120% at 40% 70%, rgba(56,189,248,.5), rgba(59,130,246,.3) 50%, transparent 75%), var(--surface-variant); }
.show-thumb .g.amber { background: radial-gradient(120% 120% at 60% 40%, rgba(251,146,60,.45), rgba(244,63,94,.28) 50%, transparent 75%), var(--surface-variant); }
.show-thumb .g.rose { background: radial-gradient(120% 120% at 30% 60%, rgba(244,63,94,.45), rgba(168,85,247,.28) 50%, transparent 75%), var(--surface-variant); }
.show-thumb .g.teal { background: radial-gradient(120% 120% at 70% 70%, rgba(20,184,166,.45), rgba(56,189,248,.28) 50%, transparent 75%), var(--surface-variant); }
.show-thumb .mini-play {
  position: relative; z-index: 2;
  width: 52px; height: 52px; border-radius: 50%;
  background: rgba(251, 253, 255, .85);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,.6);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 24px -8px rgba(0,0,0,.3);
  transition: transform .25s ease, background .25s ease;
}
.show-card:hover .mini-play { transform: scale(1.1); background: var(--primary); }
.show-card:hover .mini-play svg { fill: #fff; }
.mini-play svg { width: 20px; height: 20px; margin-left: 3px; fill: var(--ink); }
.show-body { padding: 20px; }
.tagbadge { display: inline-block; font-size: .7rem; font-weight: 600; padding: 4px 10px; border-radius: var(--r-sm); margin-bottom: 12px; }
.tagbadge.model { background: #eef2ff; color: #4f46e5; }
.tagbadge.deploy { background: #ecfdf5; color: #059669; }
.tagbadge.case { background: #fff7ed; color: #ea580c; }
.show-body h3 { font-size: .98rem; font-weight: 600; line-height: 1.45; margin-bottom: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.show-date { font-size: .8rem; color: var(--muted); }

/* dashboard preview + glass widget */
.preview {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--r-2xl);
  border: 1px solid var(--border);
  overflow: hidden;
  background:
    radial-gradient(60% 80% at 25% 30%, rgba(59,130,246,.16), transparent 60%),
    radial-gradient(60% 80% at 75% 70%, rgba(168,85,247,.16), transparent 60%),
    linear-gradient(160deg, #eef4fb, #e0e8f3);
  display: flex; align-items: center; justify-content: center;
}
.glass {
  position: relative; z-index: 2;
  width: min(440px, 86%);
  background: rgba(255, 255, 255, .28);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border: 1px solid rgba(255, 255, 255, .5);
  border-radius: var(--r-2xl);
  padding: 28px;
  box-shadow: var(--shadow-glass);
  display: flex; flex-direction: column; gap: 26px;
}
.glass-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.glass-head .eyebrow { font-size: 10px; font-weight: 700; letter-spacing: .22em; text-transform: uppercase; color: rgba(17,17,17,.5); display: block; margin-bottom: 4px; }
.glass-head .title { font-size: .9rem; font-weight: 600; letter-spacing: -0.01em; }
.glass-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(16,185,129,.16); border: 1px solid rgba(16,185,129,.28); border-radius: var(--r-full); padding: 6px 12px; }
.glass-badge span { font-size: 10px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: #047857; }
.spectrum { display: flex; align-items: flex-end; justify-content: space-between; height: 88px; gap: 4px; }
.spectrum i { flex: 1; border-radius: var(--r-full); background: linear-gradient(to top, rgba(59,130,246,.4), var(--blue)); }
.spectrum i.p { background: linear-gradient(to top, rgba(168,85,247,.4), var(--purple)); }
.metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.metric .mk { font-size: 10px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.metric .mv { font-size: 1.3rem; font-weight: 700; letter-spacing: -0.02em; }
.metric .mv small { font-size: .72rem; font-weight: 500; color: var(--muted); margin-left: 2px; }
.glass-controls { display: flex; align-items: center; justify-content: space-between; border-top: 1px solid rgba(0,0,0,.06); padding-top: 22px; }
.glass-controls .grp { display: flex; align-items: center; gap: 20px; }
.glass-controls .ctrl svg { width: 22px; height: 22px; fill: rgba(17,17,17,.5); transition: fill .2s; }
.glass-controls .ctrl:hover svg { fill: var(--ink); }
.glass-controls .ctrl.main { width: 46px; height: 46px; border-radius: 50%; background: var(--primary); display: flex; align-items: center; justify-content: center; }
.glass-controls .ctrl.main svg { fill: #fff; width: 20px; height: 20px; margin-left: 2px; }
.glass-time { text-align: right; }
.glass-time .t { font-family: var(--font-mono); font-size: .78rem; font-weight: 700; background: rgba(255,255,255,.5); border: 1px solid rgba(255,255,255,.6); border-radius: var(--r-sm); padding: 3px 10px; display: inline-block; }
.glass-time .sub { display: block; margin-top: 4px; font-size: 9px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--muted); }

/* ---------- Industry / agent style cards ---------- */
.industry-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.industry-card { min-height: 220px; padding: 32px; display: flex; flex-direction: column; gap: 16px; }
.industry-card .glow { position: absolute; inset: 0; opacity: .4; transition: opacity .3s ease; }
.industry-card:hover .glow { opacity: .65; }
.industry-card .ihead { position: relative; z-index: 2; display: flex; align-items: center; gap: 14px; }
.industry-card .ibadge { position: relative; z-index: 2; align-self: flex-start; background: rgba(245, 248, 252, .85); backdrop-filter: blur(6px); border: 1px solid var(--border); border-radius: var(--r-full); padding: 6px 14px; font-size: .8rem; font-weight: 600; }
.industry-card .iicon { width: 46px; height: 46px; border-radius: var(--r-md); background: var(--surface-variant); display: flex; align-items: center; justify-content: center; }
.industry-card .iicon svg { width: 24px; height: 24px; }
.industry-card h4 { position: relative; z-index: 2; font-size: 1.15rem; font-weight: 600; letter-spacing: -0.02em; }
.industry-card p { position: relative; z-index: 2; font-size: .9rem; color: var(--muted); line-height: 1.6; }

/* ---------- Quick entry + sign off ---------- */
.quick-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.quick-card {
  background: var(--primary);
  color: var(--on-primary);
  border-radius: var(--r-xl);
  padding: 38px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 1.1rem; font-weight: 600; letter-spacing: -0.02em;
  cursor: pointer;
  transition: transform .3s ease, box-shadow .3s ease;
}
.quick-card:hover { transform: translateY(-5px); box-shadow: 0 24px 50px -22px rgba(0,0,0,.5); }
.quick-card svg { width: 22px; height: 22px; fill: currentColor; opacity: .8; transition: transform .25s; }
.quick-card:hover svg { transform: translateX(4px); }
.signoff { text-align: center; display: flex; flex-direction: column; align-items: center; gap: 28px; }
.signoff .h2 { max-width: 760px; }
.signoff .actions { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--border); padding: 56px 0 40px; }
.footer-top { display: flex; flex-wrap: wrap; gap: 32px; justify-content: space-between; margin-bottom: 40px; }
.footer-brand { max-width: 320px; }
.footer-brand img { height: 24px; margin-bottom: 18px; }
.footer-brand p { font-size: .88rem; color: var(--muted); line-height: 1.7; }
.footer-cols { display: flex; gap: 64px; flex-wrap: wrap; }
.footer-col h5 { font-size: .8rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--muted-2); margin-bottom: 16px; }
.footer-col a { display: block; font-size: .9rem; color: var(--muted); margin-bottom: 12px; transition: color .2s; }
.footer-col a:hover { color: var(--ink); }
.footer-bottom { padding-top: 26px; display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; align-items: center; }
.footer-bottom p { font-size: .82rem; color: var(--muted); text-align: center; }
.footer-social { display: flex; gap: 22px; }
.footer-social a { font-size: .85rem; color: var(--muted); }
.footer-social a:hover { color: var(--ink); }

/* 首页仅保留页脚底部版权栏 */
.home-page .footer-top { display: none; }
.home-page .footer { padding: 26px 0; }
.home-page .footer-bottom { border-top: none; padding-top: 0; }

/* ---------- Homepage scenario section responsive ---------- */
@media (max-width: 1024px) {
  .scenario-category > div[style*="grid-template-columns"] {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}

@media (max-width: 768px) {
  .scenario-category { margin-bottom: 56px !important; }

  .scenario-category .category-header {
    flex-direction: column !important;
    align-items: flex-start !important;
    gap: 4px !important;
    margin-bottom: 20px !important;
  }

  .scenario-category > div[style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
    gap: 14px !important;
  }

  .scenario-card { padding: 20px !important; }

  .home-page .section-head .h2-md {
    font-size: clamp(1.3rem, 1.1rem + 1.2vw, 1.6rem);
  }

  .home-page .section-head .lead {
    font-size: 0.9rem;
  }
}

@media (max-width: 480px) {
  .scenario-category { margin-bottom: 44px !important; }

  .scenario-card { padding: 16px !important; }

  .scenario-card h4 { font-size: 0.95rem !important; }
}

/* ---------- Sub hero (inner pages) ---------- */
.subhero { padding: 80px 0 56px; text-align: center; }
.subhero .eyebrow { margin-bottom: 18px; }
.subhero h1 { margin-bottom: 16px; }
.subhero p { max-width: 620px; margin: 0 auto; }
.subhero-orbs { position: relative; }

/* ---------- About page ---------- */
.info-card { padding: 28px; }
.info-card .ic-top { display: flex; align-items: center; gap: 16px; margin-bottom: 18px; }
.info-card .ic-ico { width: 48px; height: 48px; border-radius: var(--r-md); background: var(--surface-variant); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.info-card .ic-ico svg { width: 24px; height: 24px; }
.info-card .ic-meta h4 { font-size: 1.1rem; font-weight: 600; }
.info-card .ic-meta .sub { font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.info-card .ic-title { font-size: 1.05rem; font-weight: 600; margin: 16px 0 10px; }
.info-card p.desc { font-size: .9rem; color: var(--muted); line-height: 1.8; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.arch-card { padding: 26px; position: relative; overflow: hidden; }
.arch-card .arch-top { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 14px; }
.arch-card .arch-tag { font-size: .72rem; font-weight: 700; letter-spacing: .08em; color: var(--ink); background: var(--surface-variant); border-radius: var(--r-full); padding: 4px 10px; }
.arch-card .ic-ico { width: 42px; height: 42px; border-radius: var(--r-md); background: var(--panel); display: flex; align-items: center; justify-content: center; }
.arch-card .ic-ico svg { width: 22px; height: 22px; }

.about-block { margin-bottom: 96px; }
.about-block .blk-head { margin-bottom: 32px; }
.about-block .blk-head h2 { margin-bottom: 8px; }

/* ---------- Product page ---------- */
.product-block { position: relative; border-radius: var(--r-2xl); border: 1px solid var(--border); overflow: hidden; margin-bottom: 28px; background: var(--card); transition: box-shadow .3s ease, border-color .3s ease, transform .3s ease; }
.product-block:hover { box-shadow: var(--shadow-card); border-color: var(--border-strong); transform: translateY(-3px); }
.pb-glowbg { position: absolute; top: -110px; right: -110px; width: 380px; height: 380px; border-radius: 50%; filter: blur(100px); opacity: .42; pointer-events: none; }
.pb-glowbg.violet { background: linear-gradient(135deg, var(--indigo), var(--purple)); }
.pb-glowbg.blue { background: linear-gradient(135deg, var(--sky), var(--blue)); }
.pb-glowbg.green { background: linear-gradient(135deg, var(--emerald), var(--teal)); }
.pb-head { position: relative; z-index: 2; display: flex; align-items: flex-start; gap: 22px; padding: 40px 40px 26px; }
.pb-ico { flex-shrink: 0; width: 58px; height: 58px; border-radius: 16px; display: flex; align-items: center; justify-content: center; color: var(--ink); background: rgba(255, 255, 255, .65); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); border: 1px solid rgba(255, 255, 255, .75); box-shadow: 0 10px 26px -12px rgba(0, 0, 0, .22); }
.pb-ico svg { width: 28px; height: 28px; }
.pb-headmain { flex: 1; min-width: 0; }
.pb-eyebrow { display: inline-block; font-size: 12px; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin-bottom: 12px; }
.pb-headmain h2 { font-size: 1.65rem; font-weight: 600; letter-spacing: -0.025em; margin-bottom: 8px; }
.pb-headmain p { color: var(--muted); font-size: .98rem; }
.pb-body { position: relative; z-index: 2; display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; padding: 0 40px 40px; }
.pb-feature { display: flex; gap: 16px; align-items: flex-start; padding: 22px; background: rgba(245, 248, 252, .7); border: 1px solid var(--border); border-radius: var(--r-md); transition: transform .25s ease, background .25s ease, border-color .25s ease, box-shadow .25s ease; }
.pb-feature:hover { background: var(--card); border-color: var(--border-strong); transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.pb-feature .pf-ico { flex-shrink: 0; width: 46px; height: 46px; border-radius: 13px; background: var(--card); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; color: var(--ink); }
.pb-feature .pf-ico svg { width: 22px; height: 22px; }
.pb-feature h4 { font-size: .98rem; font-weight: 600; margin-bottom: 5px; }
.pb-feature p { font-size: .84rem; color: var(--muted); line-height: 1.6; }

/* ---------- News page ---------- */
.news-filter { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 44px; }
.filter-btn { background: var(--card); border: 1px solid var(--border); border-radius: var(--r-full); padding: 9px 22px; font-size: .85rem; font-weight: 500; color: var(--muted); transition: .25s; }
.filter-btn:hover { color: var(--ink); border-color: var(--border-strong); }
.filter-btn.active { background: var(--primary); border-color: var(--primary); color: var(--on-primary); }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card { display: flex; flex-direction: column; }
.news-thumb { height: 168px; position: relative; overflow: hidden; display: flex; align-items: center; justify-content: center; }
.news-thumb .g { position: absolute; inset: 0; }
.news-thumb .label { position: relative; z-index: 2; font-size: .8rem; font-weight: 600; color: rgba(17,17,17,.4); }
.news-body { padding: 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.news-body h3 { font-size: .98rem; font-weight: 600; line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.news-tag { display: inline-block; align-self: flex-start; font-size: .7rem; font-weight: 600; padding: 4px 10px; border-radius: var(--r-sm); }
.news-tag.enterprise { background: #eef2ff; color: #4f46e5; }
.news-tag.business { background: #fff7ed; color: #ea580c; }
.news-tag.insight { background: #ecfdf5; color: #059669; }
.news-tag.tech { background: #faf5ff; color: #9333ea; }
.news-date { font-size: .8rem; color: var(--muted); margin-top: auto; }
.loading { text-align: center; color: var(--muted); padding: 60px 0; }

/* ---------- Contact page ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; }
.contact-info h2, .contact-form h2 { font-size: 1.4rem; font-weight: 600; letter-spacing: -0.02em; margin-bottom: 26px; padding-left: 16px; border-left: 3px solid var(--primary); }
.contact-item { display: flex; gap: 16px; margin-bottom: 24px; }
.contact-item .ci-ico { flex-shrink: 0; width: 44px; height: 44px; border-radius: var(--r-md); background: var(--surface-variant); display: flex; align-items: center; justify-content: center; }
.contact-item .ci-ico svg { width: 22px; height: 22px; }
.contact-item h4 { font-size: .95rem; font-weight: 600; margin-bottom: 4px; }
.contact-item p { font-size: .88rem; color: var(--muted); }
.form-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--r-xl); padding: 32px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: .85rem; font-weight: 600; color: var(--ink-soft); margin-bottom: 7px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 11px 14px;
  color: var(--ink);
  transition: .25s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--ink);
  background: var(--card);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
.form-group textarea { min-height: 110px; resize: vertical; }
.form-group select { -webkit-appearance: none; -moz-appearance: none; appearance: none; cursor: pointer; padding-right: 40px; }
.form-group select, .form-group select:focus {
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b6b6b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 16px;
}
.form-group select:focus { background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23111111' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E"); }
.btn-submit { width: 100%; background: var(--primary); color: var(--on-primary); border-radius: var(--r-md); padding: 13px; font-weight: 600; transition: .25s; }
.btn-submit:hover { transform: translateY(-2px); box-shadow: 0 14px 30px -12px rgba(0,0,0,.5); }

/* ---------- Video modal ---------- */
.modal { position: fixed; inset: 0; z-index: 1000; display: none; align-items: center; justify-content: center; padding: 24px; background: rgba(0,0,0,.6); backdrop-filter: blur(8px); }
.modal.open { display: flex; animation: fadeIn .25s ease; }
.modal-box { width: 100%; max-width: 960px; background: var(--card); border-radius: var(--r-xl); overflow: hidden; box-shadow: 0 40px 80px -20px rgba(0,0,0,.5); }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 22px; border-bottom: 1px solid var(--border); }
.modal-head h3 { font-size: 1rem; font-weight: 600; }
.modal-close { width: 34px; height: 34px; border-radius: var(--r-sm); background: var(--panel); display: flex; align-items: center; justify-content: center; transition: .2s; }
.modal-close:hover { background: var(--surface-variant); }
.modal-close svg { width: 18px; height: 18px; fill: var(--ink); }
.modal-body { background: #000; }
.modal-body video { width: 100%; max-height: 70vh; display: block; }
.modal-placeholder { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px; min-height: 340px; color: rgba(255, 255, 255, .85); padding: 24px; text-align: center; }
.modal-placeholder .mp-ico { width: 60px; height: 60px; display: flex; align-items: center; justify-content: center; border-radius: 50%; background: rgba(255, 255, 255, .12); }
.modal-placeholder .mp-ico svg { width: 24px; height: 24px; fill: #fff; }
.modal-placeholder p { font-size: .95rem; }

/* ---------- Scroll reveal（用 html.js 门控：无 JS 时内容默认可见，避免空白） ---------- */
.reveal { transition: opacity .7s ease, transform .7s ease; }
html.js .reveal { opacity: 0; transform: translateY(22px); }
html.js .reveal.in { opacity: 1; transform: none; }

/* ---------- Keyframes ---------- */
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(16,185,129,.5); } 70% { box-shadow: 0 0 0 8px rgba(16,185,129,0); } 100% { box-shadow: 0 0 0 0 rgba(16,185,129,0); } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; }
  html.js .reveal { opacity: 1; transform: none; }
}

/* 能力中心：视频播放按钮与体验按钮 */
.pb-feature .pf-ico { cursor: default; transition: background .25s ease, border-color .25s ease, color .25s ease; }
.pb-feature .pf-ico[data-video] { cursor: pointer; }
.pb-feature .pf-actions { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.pb-feature .pf-actions .btn { padding: 6px 14px; font-size: 0.8rem; }
.pb-body.single { grid-template-columns: 1fr; }
.pb-body.single .pb-feature { max-width: 480px; }

/* ---------- 首页 Hero 视频区（区域内播放） ---------- */
.video-section { padding-top: clamp(16px, 3vw, 32px); }
.video-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-xl);
  border: 1px solid var(--border);
  background: var(--card);
  box-shadow: var(--shadow-card);
  max-width: 85%;
  margin: 0 auto;
}
.video-card::before {
  content: "";
  display: block;
  width: 100%;
  padding-top: 48%;
}
.video-card video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: inherit;
}

/* 桌面端：左右 1/2 布局，视频区独占左侧，按钮在右下角 */
@media (min-width: 769px) {
  .pb-feature { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: stretch; }
  .pb-feature .pf-ico { width: auto; height: auto; min-height: 190px; border-radius: var(--r-md); }
  .pb-feature .pf-ico[data-video] {
    background: var(--surface-variant);
    display: flex; align-items: center; justify-content: center;
    position: relative;
    border: 1px solid var(--border);
  }
  .pb-feature .pf-ico[data-poster] {
    background-size: cover;
    background-position: center;
  }
  .pb-feature .pf-ico[data-poster] svg {
    filter: drop-shadow(0 2px 4px rgba(0,0,0,.35));
  }
  .pb-feature .pf-ico[data-video]::after {
    content: "观看演示"; position: absolute; bottom: 24px;
    font-size: .82rem; font-weight: 500; color: var(--muted);
  }
  .pb-feature .pf-ico[data-video]:hover {
    background: var(--primary); border-color: var(--primary); color: #fff;
  }
  .pb-feature .pf-ico[data-video]:hover::after { color: rgba(255,255,255,.8); }
  .pb-feature .pf-ico svg { width: 38px; height: 38px; }
  .pb-feature > div:nth-child(2) {
    display: flex; flex-direction: column; justify-content: space-between;
    min-height: 190px;
  }
  .pb-feature .pf-actions { justify-content: flex-end; margin-top: auto; padding-top: 0; }
}

/* 移动端回退 */
@media (min-width: 1025px) {
  .hero-main .display {
    font-size: clamp(2.5rem, 1.6rem + 2.5vw, 3.6rem);
    white-space: nowrap;
  }
}

@media (max-width: 768px) {
  .pb-feature .pf-ico[data-video]::after { display: none; }
  .pb-feature .pf-ico svg { width: 22px; height: 22px; }
  .video-poster { min-height: 220px; }
  .video-play-btn { width: 64px; height: 64px; }
}

/* ---------- News detail ---------- */
.news-card.clickable { cursor: pointer; }

.news-detail-page { background: #f0f5fa; min-height: 100vh; }

.news-detail-wrap { max-width: 900px; margin: 0 auto; }


.news-detail-back { display: inline-flex; align-items: center; gap: 8px; font-size: .85rem; font-weight: 500; color: #9ca3af; text-decoration: none; margin-bottom: 28px; transition: color .2s; }
.news-detail-back:hover { color: #2563eb; }
.news-detail-back svg { width: 18px; height: 18px; }

.news-detail-head { text-align: center; margin-bottom: 40px; }

.news-detail-meta-top { display: flex; align-items: center; justify-content: center; gap: 16px; margin-bottom: 16px; }

.news-detail-tag { display: inline-block; font-size: .72rem; font-weight: 600; padding: 5px 14px; border-radius: 6px; text-transform: uppercase; letter-spacing: 0.04em; border: 1px solid #e5e7eb; background: #fff; color: #6b7280; }
.news-detail-tag.enterprise { background: #eef2ff; color: #4f46e5; border-color: #dbeafe; }
.news-detail-tag.business { background: #fff7ed; color: #ea580c; border-color: #fed7aa; }
.news-detail-tag.insight { background: #ecfdf5; color: #059669; border-color: #a7f3d0; }
.news-detail-tag.tech { background: #faf5ff; color: #9333ea; border-color: #e9d5ff; }

.news-detail-date { display: inline-flex; align-items: center; gap: 6px; font-size: .85rem; color: #9ca3af; font-weight: 500; }


.news-detail-h1 { font-size: 2.2rem; font-weight: 700; line-height: 1.4; color: #2563eb; margin-bottom: 16px; letter-spacing: -0.02em; }

.news-detail-summary { font-size: 1rem; color: #6b7280; line-height: 1.7; max-width: 720px; margin: 0 auto; }

.news-detail-card { background: #fff; border-radius: 16px; padding: 48px 56px; box-shadow: 0 1px 3px rgba(0,0,0,.04), 0 4px 12px rgba(0,0,0,.02); }

.news-detail-content { font-size: 1.0625rem; line-height: 1.9; color: #1f2937; }
.news-detail-content p { margin-bottom: 22px; }
.news-detail-content h2, .news-detail-content h3, .news-detail-content h4 { font-weight: 700; line-height: 1.35; margin: 40px 0 16px; color: #111827; }
.news-detail-content h2 { font-size: 1.35rem; }
.news-detail-content h3 { font-size: 1.2rem; }
.news-detail-content h4 { font-size: 1.05rem; }
.news-detail-content img { width: 100%; border-radius: 12px; margin: 24px 0; }
.news-detail-content ul, .news-detail-content ol { margin-bottom: 22px; padding-left: 24px; }
.news-detail-content li { margin-bottom: 8px; }
.news-detail-content a { color: #2563eb; text-decoration: underline; text-underline-offset: 3px; }
.news-detail-content blockquote { border-left: 3px solid #2563eb; padding-left: 20px; margin: 24px 0; color: #6b7280; font-style: italic; }
.news-detail-content strong { font-weight: 700; color: #111827; }

.news-detail-loading { text-align: center; color: #9ca3af; padding: 60px 0; font-size: 1rem; }
.news-detail-loading-inline { text-align: center; color: #9ca3af; font-size: .85rem; }

@media (min-width: 1025px) {
  .hero-main .display {
    font-size: clamp(2.5rem, 1.6rem + 2.5vw, 3.6rem);
    white-space: nowrap;
  }
}

@media (max-width: 768px) {
  .news-detail-card { padding: 24px; border-radius: 12px; }
  .news-detail-h1 { font-size: 1.6rem; }
  .news-detail-content { font-size: 1rem; }
  .news-detail-summary { font-size: .9rem; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  :root { --section-gap: 110px; }
  .hero-main { grid-column: 1 / span 12; align-items: center; text-align: center; }
  .hero-aside { display: none; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .showcase-grid { grid-template-columns: repeat(2, 1fr); }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .panel { min-height: 520px; }
  .glass { padding: 24px; }
}
@media (min-width: 1025px) {
  .hero-main .display {
    font-size: clamp(2.5rem, 1.6rem + 2.5vw, 3.6rem);
    white-space: nowrap;
  }
}

@media (max-width: 768px) {
  :root { --pad: 20px; --section-gap: 84px; --nav-h: 64px; }
  .nav-links, .nav-lang { display: none; }
  .hamburger { display: flex; }
  .menu-hint { display: inline-block; }
  .nav-left { gap: 0; }
  .hero { padding-top: 72px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .duo, .industry-grid, .grid-2, .grid-3, .quick-grid,
  .feature-grid, .showcase-grid, .news-grid, .contact-grid,
  .product-block .pb-body { grid-template-columns: 1fr; }
  .split { gap: 16px; }
  .split .split-title, .split .split-body { grid-column: 1 / span 12; }
  .panel { min-height: 420px; padding: 18px; border-radius: var(--r-xl); }
  .panel-bottom { padding: 12px; flex-direction: column; align-items: flex-start; gap: 10px; }
  .glow-card { min-height: 260px; padding: 22px; }
  .industry-card { min-height: 180px; padding: 24px; }
  .quick-card { padding: 28px 22px; font-size: 1rem; }
  .section-head { margin-bottom: 40px; }
  .subhero { padding: 60px 0 40px; }
  .about-block { margin-bottom: 64px; }
  .glass { padding: 22px; border-radius: var(--r-xl); }
  .preview { border-radius: var(--r-xl); }
  .modal-box { max-width: calc(100% - 32px); border-radius: var(--r-lg); }
  .modal-body video { max-height: 60vh; }
  .btn { padding: 10px 22px; font-size: 0.9rem; }
  .metrics { gap: 12px; }
  .metric .mv { font-size: 1.1rem; }
  .spectrum { height: 72px; }
  .footer-top { flex-direction: column; gap: 36px; }
  .footer-cols { gap: 40px; }
  .product-block .pb-head { padding: 28px 22px 18px; gap: 16px; flex-direction: column; }
  .product-block .pb-body { padding: 0 22px 28px; }
}
@media (max-width: 640px) {
  :root { --pad: 16px; --section-gap: 64px; }
  .display { font-size: clamp(1.7rem, 1.4rem + 2vw, 1.9rem); }
  .h2 { font-size: clamp(1.4rem, 1.15rem + 1.5vw, 1.6rem); }
  .h2-md { font-size: clamp(1.25rem, 1.05rem + 1.2vw, 1.4rem); }
  .lead { font-size: 0.95rem; }
  .hero { padding-top: 64px; }
  .panel { min-height: 360px; padding: 16px; border-radius: var(--r-lg); }
  .glow-card { min-height: 220px; padding: 20px; border-radius: var(--r-lg); }
  .glow-card .cap h4 { font-size: 1.15rem; }
  .gc-orb { width: 160px; height: 160px; }
  .feature-cell { padding: 18px; }
  .showcase-grid { gap: 16px; }
  .show-thumb { height: 160px; }
  .show-body { padding: 16px; }
  .industry-card { min-height: 160px; padding: 20px; gap: 12px; }
  .industry-card .iicon { width: 40px; height: 40px; }
  .industry-card h4 { font-size: 1.05rem; }
  .quick-grid { gap: 16px; }
  .quick-card { padding: 24px 20px; font-size: 1rem; }
  .footer { padding: 40px 0 28px; }
  .footer-brand { max-width: 100%; }
  .footer-bottom { padding-top: 20px; }
  .subhero { padding: 48px 0 32px; }
  .subhero h1 { font-size: 1.5rem; }
  .contact-grid { gap: 36px; }
  .form-card { padding: 24px; border-radius: var(--r-lg); }
  .glass { padding: 20px; gap: 18px; }
  .preview { border-radius: var(--r-lg); }
  .modal-box { border-radius: var(--r-md); }
  .modal-head { padding: 12px 18px; }
  .modal-placeholder { min-height: 240px; }
  .btn { padding: 10px 20px; font-size: 0.88rem; }
  .btn-sm { padding: 6px 14px; font-size: 0.8rem; }
  .pb-head { padding: 24px 18px 16px; gap: 14px; flex-direction: column; }
  .pb-ico { width: 48px; height: 48px; }
  .pb-headmain h2 { font-size: 1.35rem; }
  .pb-body { padding: 0 18px 24px; gap: 12px; }
  .pb-feature { padding: 18px; gap: 12px; }
  .news-filter { gap: 8px; margin-bottom: 28px; }
  .filter-btn { padding: 7px 16px; font-size: 0.8rem; }
  .news-grid { gap: 16px; }
  .news-thumb { height: 140px; }
  .news-body { padding: 18px; }
  .news-body h3 { font-size: 0.92rem; }
  .marquee-set { gap: 40px; padding-right: 40px; }
  .brand-logo { font-size: 0.95rem; }
}
@media (max-width: 480px) {
  :root { --pad: 14px; --section-gap: 52px; --nav-h: 58px; }
  .display { font-size: 1.55rem; }
  .h2 { font-size: 1.3rem; }
  .h2-md { font-size: 1.15rem; }
  .hero { padding-top: 56px; }
  .panel { min-height: 320px; padding: 14px; }
  .glow-card { min-height: 200px; padding: 18px; }
  .quick-card { padding: 20px 18px; font-size: 0.95rem; }
  .show-thumb { height: 140px; }
  .industry-card { padding: 18px; }
  .pb-head { padding: 20px 16px 14px; }
  .pb-body { padding: 0 16px 20px; }
  .pb-feature { padding: 16px; }
  .form-card { padding: 20px; }
  .glass { padding: 18px; }
  .modal-box { max-width: calc(100% - 24px); }
  .news-thumb { height: 120px; }
  .news-body { padding: 16px; }
  .footer-cols { gap: 28px; }
  .footer-col a { font-size: 0.85rem; margin-bottom: 10px; }
  .footer-bottom p { font-size: 0.78rem; }
  .btn { padding: 9px 18px; font-size: 0.85rem; }
  .btn-sm { padding: 6px 12px; font-size: 0.78rem; }
  .contact-item { gap: 12px; margin-bottom: 18px; }
  .contact-item .ci-ico { width: 40px; height: 40px; }
  .contact-item h4 { font-size: 0.9rem; }
  .contact-item p { font-size: 0.82rem; }
  .marquee-set { gap: 32px; padding-right: 32px; }
  .brand-logo { font-size: 0.88rem; gap: 8px; }
  .brand-logo svg { width: 20px; height: 20px; }
}