/* ============== 智算云门户 · 商业化UI v2 ============== */
@import url('https://fonts.googleapis.cn/css2?family=Noto+Sans+SC:wght@400;500;700;900&family=Inter:wght@400;500;600;700;900&family=JetBrains+Mono:wght@400;500;700&display=swap');

:root {
  --primary: #8822c2;
  --primary-dark: #6f1b9e;
  --accent: #b884e0;
  --bg: #f6f8fc;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --font: "Noto Sans SC", "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", ui-monospace, monospace;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(136, 34, 194, 0.08);
  --shadow-sm: 0 4px 14px rgba(136, 34, 194, 0.06);
  --maxw: 1200px;
  --glow-primary: 0 0 0 1px color-mix(in srgb, var(--primary) 30%, transparent), 0 10px 40px color-mix(in srgb, var(--primary) 25%, transparent);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; position: relative; }
.section-head { text-align: center; max-width: 760px; margin: 0 auto 56px; }
.section-head h2 {
  font-size: 38px; margin: 14px 0 16px; letter-spacing: -0.8px; line-height: 1.25;
  font-weight: 800;
  background: linear-gradient(135deg, var(--text) 0%, color-mix(in srgb, var(--primary) 60%, var(--text)) 100%);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.section-head p { color: var(--muted); font-size: 17px; margin: 0; line-height: 1.7; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12.5px; font-weight: 800; letter-spacing: 1.8px; text-transform: uppercase;
  color: var(--primary);
  background: color-mix(in srgb, var(--primary) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--primary) 20%, transparent);
  padding: 5px 14px; border-radius: 999px; margin-bottom: 8px;
}
.eyebrow::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--primary); box-shadow: 0 0 10px var(--primary);
}

/* ========== 滚动进入动画 ========== */
.reveal {
  opacity: 0; transform: translateY(30px);
  transition: opacity .8s cubic-bezier(.2,.8,.2,1), transform .8s cubic-bezier(.2,.8,.2,1);
  will-change: opacity, transform;
}
.reveal.in-view { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: .08s; }
.reveal-delay-2 { transition-delay: .16s; }
.reveal-delay-3 { transition-delay: .24s; }
.reveal-delay-4 { transition-delay: .32s; }

/* ========== Navbar 升级 ========== */
.navbar {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--surface) 72%, transparent);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s ease, box-shadow .3s ease, background .3s ease;
}
.navbar.scrolled {
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  border-bottom-color: var(--border);
  box-shadow: 0 2px 20px rgba(15,23,42,.06);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; letter-spacing: -.3px; }
.brand .logo-icon {
  font-size: 26px; width: 36px; height: 36px; display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 10px; color: #fff; flex-shrink: 0;
}
.brand .logo-img {
  height: 38px; width: auto; display: inline-block; vertical-align: middle; flex-shrink: 0;
}
.footer .f-brand .logo-img {
  height: 36px; width: auto; display: inline-block; vertical-align: middle; flex-shrink: 0;
}
.brand .logo-text-wrap { display: flex; flex-direction: column; line-height: 1.15; }
.brand .logo-text {
  background: linear-gradient(135deg, var(--text), var(--primary));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.brand .logo-en {
  font-size: 10px; font-weight: 500; letter-spacing: 1.5px; color: var(--muted);
  -webkit-text-fill-color: var(--muted);
  text-transform: uppercase; margin-top: 2px;
}
.nav-menu { display: flex; align-items: center; gap: 8px; }
.nav-menu a {
  padding: 10px 18px; border-radius: 10px; font-weight: 600; color: var(--muted);
  transition: all .2s ease; font-size: 15px;
  position: relative;
}
.nav-menu a:hover { color: var(--text); background: color-mix(in srgb, var(--primary) 8%, transparent); }
.nav-menu a::after {
  content: ""; position: absolute; left: 18px; right: 18px; bottom: 4px; height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 2px; transform: scaleX(0); transform-origin: center;
  transition: transform .25s ease;
}
.nav-menu a:hover::after { transform: scaleX(1); }
.nav-cta {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff !important; padding: 10px 22px !important;
  border-radius: 10px; box-shadow: var(--shadow-sm);
  position: relative; overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease, filter .2s ease;
}
.nav-cta::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(120deg, transparent 30%, rgba(255,255,255,.18) 50%, transparent 70%);
  transform: translateX(-120%); transition: transform .6s ease;
}
.nav-cta:hover { filter: brightness(1.08); transform: translateY(-1px); box-shadow: var(--glow-primary); }
.nav-cta:hover::before { transform: translateX(120%); }
.nav-toggle { display: none; background: none; border: 0; font-size: 26px; cursor: pointer; color: var(--text); }

/* ========== Hero 商业化升级 ========== */
.hero {
  position: relative; overflow: hidden;
  background: #060b1a;
  color: #fff;
  padding: 120px 0 110px;
}
.hero-bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: radial-gradient(ellipse at center, black 40%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 75%);
}
.hero-bg-glow {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(700px 500px at 85% 20%, color-mix(in srgb, var(--accent) 36%, transparent), transparent 60%),
    radial-gradient(800px 500px at 15% 15%, color-mix(in srgb, var(--primary) 42%, transparent), transparent 60%),
    radial-gradient(600px 400px at 50% 110%, color-mix(in srgb, #8b5cf6 30%, transparent), transparent 60%);
  opacity: .9;
  animation: glowFloat 14s ease-in-out infinite alternate;
}
@keyframes glowFloat {
  0%   { filter: blur(0px); transform: scale(1); }
  100% { filter: blur(10px); transform: scale(1.06); }
}
.hero .container { position: relative; z-index: 2; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12.5px; font-weight: 700; letter-spacing: 2.5px; text-transform: uppercase;
  color: #93c5fd;
  background: rgba(37, 99, 235, .18);
  border: 1px solid rgba(96, 165, 250, .3);
  padding: 6px 16px; border-radius: 999px;
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
}
.hero-eyebrow::before {
  content: ""; width: 7px; height: 7px; border-radius: 50%;
  background: #22d3ee; box-shadow: 0 0 12px #22d3ee;
  animation: blink 1.6s ease-in-out infinite;
}
@keyframes blink { 0%,100% { opacity: 1 } 50% { opacity: .3 } }
.hero-eyebrow-en {
  display: block; font-size: 13px; font-weight: 700; letter-spacing: 4px;
  color: #60a5fa; margin-bottom: 14px; opacity: .9;
  text-transform: uppercase;
}
.hero h1 {
  font-size: 60px; line-height: 1.12; margin: 0 0 22px; letter-spacing: -2px; font-weight: 900;
  max-width: 900px;
}
.hero h1 .grad {
  background: linear-gradient(135deg, #60a5fa 0%, #22d3ee 50%, #a78bfa 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  background-size: 200% 200%;
  animation: gradShift 6s ease-in-out infinite;
}
@keyframes gradShift {
  0%,100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}
.hero p.lead {
  font-size: 20px; color: rgba(226, 232, 240, .88);
  max-width: 720px; margin: 0 0 36px; line-height: 1.7; font-weight: 500;
}
.hero-feature-row {
  display: flex; flex-wrap: wrap; gap: 10px 28px; margin-bottom: 40px;
  color: #cbd5e1; font-size: 15px; font-weight: 600;
}
.hero-feature-row span { display: inline-flex; align-items: center; gap: 8px; }
.hero-feature-row span::before {
  content: "✓"; color: #34d399; font-weight: 900;
  width: 20px; height: 20px; border-radius: 50%;
  background: rgba(52,211,153,.15);
  display: inline-flex; align-items: center; justify-content: center; font-size: 12px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px; cursor: pointer; border: 0;
  font-family: inherit; font-size: 15px; font-weight: 700; padding: 14px 28px;
  border-radius: 12px; transition: transform .18s ease, box-shadow .18s ease, background .18s ease, filter .18s ease;
  text-decoration: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), color-mix(in srgb, var(--primary) 70%, var(--accent)));
  color: #fff;
  box-shadow: 0 8px 28px color-mix(in srgb, var(--primary) 40%, transparent);
  position: relative; overflow: hidden;
}
.btn-primary::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(120deg, transparent 25%, rgba(255,255,255,.25) 50%, transparent 75%);
  transform: translateX(-130%); transition: transform .8s ease;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--glow-primary);
  filter: brightness(1.06);
}
.btn-primary:hover::before { transform: translateX(130%); }
.btn-ghost {
  background: rgba(255,255,255,.08); color: #fff;
  border: 1px solid rgba(255,255,255,.2);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover { border-color: #60a5fa; color: #bfdbfe; background: rgba(96,165,250,.12); }
.btn-ghost-light {
  background: var(--surface); color: var(--text); border: 1px solid var(--border);
}
.btn-ghost-light:hover { border-color: var(--primary); color: var(--primary); background: color-mix(in srgb, var(--primary) 5%, var(--surface)); }

/* Hero stats 升级 */
.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 72px; }
.stat {
  position: relative; overflow: hidden;
  background: linear-gradient(145deg, rgba(255,255,255,.08), rgba(255,255,255,.03));
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 20px;
  padding: 28px 26px 30px;
  backdrop-filter: blur(12px);
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.stat::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(96,165,250,.6), transparent);
}
.stat::after {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(300px 140px at 100% 0%, color-mix(in srgb, var(--primary) 30%, transparent), transparent 70%);
  opacity: 0; transition: opacity .4s ease; pointer-events: none;
}
.stat:hover {
  transform: translateY(-6px);
  border-color: rgba(96,165,250,.5);
  box-shadow: 0 20px 50px rgba(37,99,235,.25);
}
.stat:hover::after { opacity: 1; }
.stat .ico {
  position: relative; z-index: 1;
  display: inline-flex; align-items: center; justify-content: center;
  width: 46px; height: 46px; font-size: 22px; border-radius: 14px;
  background: linear-gradient(135deg, rgba(96,165,250,.25), rgba(34,211,238,.18));
  border: 1px solid rgba(96,165,250,.3);
  margin-bottom: 14px;
  transition: transform .4s ease;
}
.stat:hover .ico { transform: scale(1.1) rotate(-5deg); }
.stat .v {
  position: relative; z-index: 1;
  font-size: 40px; font-weight: 900; line-height: 1.1;
  font-family: "Inter", "Noto Sans SC", system-ui, sans-serif;
  font-feature-settings: "tnum";
  letter-spacing: -1.4px;
  color: #fff;
  min-height: 44px;
}
.stat .l {
  position: relative; z-index: 1;
  font-size: 14.5px; color: rgba(203,213,225,.9);
  margin-top: 8px; font-weight: 600;
}
.stat .vbar {
  position: relative; z-index: 1; display: block;
  height: 3px; width: 44px; margin-top: 16px;
  border-radius: 999px;
  background: linear-gradient(90deg, #60a5fa, #22d3ee);
  transform-origin: left; transform: scaleX(.2);
  transition: transform .5s ease;
}
.stat:hover .vbar { transform: scaleX(1); }
.stat .v .unit-suf { font-size: 20px; font-weight: 800; margin-left: 2px; opacity: .8; }

/* ========== 通用 Cards grid ========== */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }
.grid-6 { grid-template-columns: repeat(6, 1fr); }

/* Capability 卡片升级 */
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 18px;
  padding: 30px 28px;
  box-shadow: var(--shadow-sm);
  transition: transform .3s cubic-bezier(.2,.8,.2,1), box-shadow .3s ease, border-color .3s ease;
  position: relative; overflow: hidden;
}
.card::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(400px 200px at 0% 0%, color-mix(in srgb, var(--primary) 12%, transparent), transparent 60%);
  opacity: 0; transition: opacity .4s ease; pointer-events: none;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 45px rgba(15,23,42,.10);
  border-color: color-mix(in srgb, var(--primary) 50%, var(--border));
}
.card:hover::before { opacity: 1; }
.cap .icon {
  font-size: 30px;
  width: 58px; height: 58px; display: inline-flex; align-items: center; justify-content: center;
  border-radius: 16px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--primary) 16%, transparent), color-mix(in srgb, var(--accent) 12%, transparent));
  border: 1px solid color-mix(in srgb, var(--primary) 22%, transparent);
  margin-bottom: 18px;
  transition: transform .4s ease;
}
.card:hover.cap .icon { transform: translateY(-3px) scale(1.05); }
.cap h3 { margin: 0 0 10px; font-size: 18.5px; font-weight: 800; letter-spacing: -.2px; }
.cap p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.7; }

/* Product 卡片升级 */
.product {
  position: relative; display: flex; flex-direction: column; gap: 10px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 20px;
  padding: 28px 26px;
  box-shadow: var(--shadow-sm);
  transition: transform .3s cubic-bezier(.2,.8,.2,1), box-shadow .3s ease, border-color .3s ease;
}
.product::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent), #a78bfa);
  transform: scaleX(0); transform-origin: left;
  transition: transform .45s cubic-bezier(.2,.8,.2,1);
  border-radius: 20px 20px 0 0;
}
.product:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 50px rgba(15,23,42,.12);
  border-color: color-mix(in srgb, var(--primary) 55%, var(--border));
}
.product:hover::before { transform: scaleX(1); }
.product .tag {
  position: absolute; top: 20px; right: 20px;
  font-size: 11.5px; font-weight: 800; letter-spacing: .4px;
  color: #fff;
  padding: 4px 12px; border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--primary));
  box-shadow: 0 4px 14px color-mix(in srgb, var(--primary) 30%, transparent);
}
.product .tag.tag-hot { background: linear-gradient(135deg, #ef4444, #f97316); }
.product .tag.tag-new { background: linear-gradient(135deg, #10b981, #06b6d4); }
.product .tag.tag-rec { background: linear-gradient(135deg, #8b5cf6, #6366f1); }
.product .name { font-size: 24px; font-weight: 900; letter-spacing: -.4px; }
.product .desc { color: var(--muted); font-size: 14.5px; min-height: 22px; }
.product .price { margin-top: 8px; display: flex; align-items: baseline; gap: 6px; }
.product .price .num {
  font-size: 32px; font-weight: 900;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  letter-spacing: -.6px;
}
.product .price .unit { font-size: 13.5px; color: var(--muted); }
.product ul.specs {
  list-style: none; padding: 0; margin: 14px 0 20px;
  display: flex; flex-direction: column; gap: 8px;
}
.product ul.specs li {
  font-size: 14.5px; color: var(--text); padding-left: 22px; position: relative; line-height: 1.6;
}
.product ul.specs li::before {
  content: "✓"; position: absolute; left: 0; top: 0;
  color: #10b981; font-weight: 900;
  width: 16px; height: 16px; border-radius: 50%;
  background: color-mix(in srgb, #10b981 14%, transparent);
  display: inline-flex; align-items: center; justify-content: center; font-size: 10.5px;
}
.product .btn { margin-top: auto; justify-content: center; }

/* ========== Pricing 升级 ========== */
.price-card {
  position: relative; display: flex; flex-direction: column; gap: 8px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 22px;
  padding: 34px 30px;
  box-shadow: var(--shadow-sm);
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.price-card::before {
  content: ""; position: absolute; inset: -1px; border-radius: 22px; padding: 1px;
  background: linear-gradient(135deg, var(--primary), var(--accent), #a78bfa);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity .3s ease; pointer-events: none;
}
.price-card:hover { transform: translateY(-8px); box-shadow: 0 24px 50px rgba(15,23,42,.12); }
.price-card:hover::before { opacity: 1; }
.price-card.highlight {
  border-color: transparent;
  background:
    linear-gradient(var(--surface), var(--surface)) padding-box,
    linear-gradient(135deg, var(--primary), var(--accent), #a78bfa) border-box;
  border-width: 1.5px; border-style: solid; border-color: transparent;
  box-shadow: 0 20px 50px color-mix(in srgb, var(--primary) 25%, transparent);
  transform: translateY(-6px);
}
.price-card.highlight:hover { transform: translateY(-12px); }
.price-card .ribbon {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; font-size: 12px; font-weight: 800;
  padding: 6px 18px; border-radius: 999px;
  box-shadow: 0 8px 20px color-mix(in srgb, var(--primary) 35%, transparent);
  letter-spacing: .5px;
}
.price-card .pname { font-size: 18.5px; font-weight: 800; letter-spacing: -.2px; }
.price-card .pprice { display: flex; align-items: baseline; gap: 6px; margin: 6px 0 10px; }
.price-card .pprice .num {
  font-size: 42px; font-weight: 900; letter-spacing: -1px;
  background: linear-gradient(135deg, var(--text), var(--primary));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.price-card .pprice .unit { font-size: 14px; color: var(--muted); font-weight: 600; }
.price-card ul {
  list-style: none; padding: 0; margin: 18px 0 24px;
  display: flex; flex-direction: column; gap: 11px;
}
.price-card ul li {
  font-size: 14.5px; padding-left: 26px; position: relative; line-height: 1.6;
  color: var(--text);
}
.price-card ul li::before {
  content: ""; position: absolute; left: 0; top: 5px;
  width: 18px; height: 18px; border-radius: 50%;
  background: color-mix(in srgb, #10b981 12%, transparent);
}
.price-card ul li::after {
  content: "✓"; position: absolute; left: 3px; top: 3px;
  color: #10b981; font-weight: 900; font-size: 11px;
}
.price-card .btn { margin-top: auto; justify-content: center; }

/* ========== Feature Block 两列特色 ========== */
.feature-block {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 64px; align-items: center;
}
.feature-block.reverse { direction: rtl; }
.feature-block.reverse > * { direction: ltr; }
.feature-block .eyebrow-en {
  display: block; font-size: 13px; font-weight: 800; letter-spacing: 3px;
  color: var(--primary); text-transform: uppercase; margin-bottom: 14px;
}
.feature-block .text h2 {
  font-size: 36px; font-weight: 900; letter-spacing: -0.8px; line-height: 1.25;
  margin: 0 0 18px;
}
.feature-block .text p { color: var(--muted); font-size: 17px; line-height: 1.8; margin: 0 0 24px; }
.feature-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 14px; }
.feature-list li {
  display: flex; align-items: flex-start; gap: 14px;
  padding: 14px 18px; background: var(--surface); border: 1px solid var(--border); border-radius: 14px;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.feature-list li:hover { transform: translateX(4px); border-color: color-mix(in srgb, var(--primary) 40%, var(--border)); box-shadow: var(--shadow-sm); }
.feature-list li .fl-icon {
  width: 36px; height: 36px; border-radius: 10px; flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center; font-size: 18px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--primary) 14%, transparent), color-mix(in srgb, var(--accent) 10%, transparent));
}
.feature-list li .fl-title { font-weight: 700; font-size: 15.5px; }
.feature-list li .fl-desc { color: var(--muted); font-size: 14px; margin-top: 2px; }

/* 视觉面板 mockup */
.feature-block .visual {
  position: relative; min-height: 380px; border-radius: 24px;
  background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
  box-shadow: 0 30px 70px rgba(15,23,42,.35);
  overflow: hidden;
  padding: 0;
}
.feature-block .visual .vb-dot {
  position: absolute; top: 16px; display: flex; gap: 7px; left: 20px;
}
.feature-block .visual .vb-dot span {
  width: 11px; height: 11px; border-radius: 50%;
  background: rgba(255,255,255,.25);
}
.feature-block .visual .vb-dot span:nth-child(1) { background: #ef4444; }
.feature-block .visual .vb-dot span:nth-child(2) { background: #f59e0b; }
.feature-block .visual .vb-dot span:nth-child(3) { background: #10b981; }
.feature-block .visual .vb-inner {
  padding: 54px 28px 28px;
  height: 100%;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 32px 32px;
  display: flex; flex-direction: column; gap: 14px;
}
.vb-stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.vb-stat {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 12px; padding: 12px;
}
.vb-stat .vs-n {
  font-size: 22px; font-weight: 900; color: #fff; letter-spacing: -.4px;
  font-family: "Inter", "Noto Sans SC", system-ui, sans-serif;
}
.vb-stat .vs-n .dot {
  display: inline-block; width: 7px; height: 7px; border-radius: 50%;
  background: #10b981; box-shadow: 0 0 8px #10b981; margin-right: 6px; vertical-align: middle;
  animation: blink 1.6s infinite;
}
.vb-stat .vs-l { color: rgba(255,255,255,.6); font-size: 11.5px; margin-top: 2px; font-weight: 600; }
.vb-bar-chart { display: flex; align-items: flex-end; gap: 8px; height: 90px; padding: 0 4px; }
.vb-bar {
  flex: 1; border-radius: 8px 8px 2px 2px;
  background: linear-gradient(180deg, #60a5fa, #22d3ee);
  position: relative;
}
.vb-bar::after {
  content: ""; position: absolute; top: -4px; left: 50%; transform: translateX(-50%);
  width: 2px; height: 4px; background: rgba(255,255,255,.5); border-radius: 2px;
}
.vb-log {
  background: rgba(0,0,0,.35);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 12px; padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 12px; color: rgba(255,255,255,.75);
  line-height: 1.7;
  flex: 1;
}
.vb-log .lg-s { color: #10b981; font-weight: 700; }
.vb-log .lg-p { color: #60a5fa; font-weight: 700; }
.vb-log .lg-t { color: #22d3ee; }
.vb-log .lg-d { color: rgba(255,255,255,.45); }

/* ========== 新增：实时数据看板板块 (Dashboard) ========== */
.dashboard-section { background: linear-gradient(180deg, #0a0f1f 0%, #0f172a 100%); color: #fff; }
.dashboard-section .section-head h2 { background: linear-gradient(135deg, #fff 0%, #93c5fd 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.dashboard-section .section-head p { color: rgba(203,213,225,.8); }
.dashboard-section .eyebrow {
  color: #93c5fd;
  background: rgba(96,165,250,.14);
  border-color: rgba(96,165,250,.3);
}
.dashboard-wrap {
  position: relative;
  border-radius: 24px;
  background: linear-gradient(145deg, rgba(255,255,255,.04), rgba(255,255,255,.02));
  border: 1px solid rgba(255,255,255,.1);
  padding: 28px;
  backdrop-filter: blur(16px);
  box-shadow: 0 30px 70px rgba(0,0,0,.4);
}
.dashboard-wrap::before {
  content: ""; position: absolute; inset: 0; border-radius: 24px;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(ellipse at center, black 50%, transparent 85%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 50%, transparent 85%);
  pointer-events: none;
}
.dash-tabs { display: flex; gap: 8px; margin-bottom: 24px; position: relative; z-index: 2; flex-wrap: wrap; }
.dash-tab {
  padding: 8px 16px; border-radius: 10px; font-weight: 700; font-size: 14px;
  background: rgba(255,255,255,.05); color: rgba(255,255,255,.7);
  border: 1px solid rgba(255,255,255,.1); cursor: pointer;
  transition: all .2s ease;
}
.dash-tab.active {
  background: linear-gradient(135deg, rgba(37,99,235,.5), rgba(6,182,212,.4));
  color: #fff; border-color: rgba(96,165,250,.5);
  box-shadow: 0 4px 18px rgba(37,99,235,.25);
}
.dash-overview, .dash-kpis-pane { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 22px; position: relative; z-index: 2; }
/* 切换时的视觉过渡 */
.dash-kpis-pane, .dash-chart-pane, .dash-mini-pane { animation: fadein .35s ease; }
@keyframes fadein { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }
.dash-kpi {
  padding: 20px; border-radius: 16px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  position: relative; overflow: hidden;
}
.dash-kpi::before {
  content: ""; position: absolute; top: 0; right: 0; width: 100px; height: 100px;
  background: radial-gradient(circle, color-mix(in srgb, var(--accent) 30%, transparent), transparent 70%);
  opacity: .5;
}
.dash-kpi .d-label { font-size: 12.5px; color: rgba(255,255,255,.55); font-weight: 700; letter-spacing: .3px; margin-bottom: 10px; position: relative; }
.dash-kpi .d-label .trend-up { color: #10b981; font-weight: 800; margin-left: 8px; font-size: 12px; }
.dash-kpi .d-label .trend-up::before { content: "▲ "; font-size: 10px; }
.dash-kpi .d-value {
  font-size: 30px; font-weight: 900; letter-spacing: -.8px; color: #fff;
  font-family: "Inter", "Noto Sans SC", system-ui, sans-serif;
  font-feature-settings: "tnum"; position: relative;
}
.dash-kpi .d-value .d-unit { font-size: 13px; font-weight: 700; opacity: .55; margin-left: 3px; }
.dash-chart-row { display: grid; grid-template-columns: 1.6fr 1fr; gap: 18px; position: relative; z-index: 2; }
.dash-chart-card {
  background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.08);
  border-radius: 18px; padding: 22px;
}
.dash-chart-card .dcc-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.dash-chart-card .dcc-title { font-weight: 800; font-size: 15px; }
.dash-chart-card .dcc-sub { color: rgba(255,255,255,.5); font-size: 12px; font-weight: 600; }
.dash-bars { display: flex; align-items: flex-end; gap: 10px; height: 160px; }
.dash-bars .dbc-col {
  flex: 1; display: flex; flex-direction: column; align-items: center; gap: 6px;
  height: 100%;
}
.dash-bars .dbc-bar {
  width: 100%; border-radius: 10px 10px 2px 2px;
  background: linear-gradient(180deg, #60a5fa 0%, #22d3ee 100%);
  box-shadow: 0 6px 18px rgba(96,165,250,.25);
  transition: all .5s ease;
  position: relative;
}
.dash-bars .dbc-bar:hover { filter: brightness(1.15); }
.dash-bars .dbc-bar.alt { background: linear-gradient(180deg, #a78bfa 0%, #6366f1 100%); }
.dash-bars .dbc-bar.alt2 { background: linear-gradient(180deg, #34d399 0%, #10b981 100%); }
.dash-bars .dbc-lbl { color: rgba(255,255,255,.5); font-size: 11.5px; font-weight: 700; }

/* 右侧 mini 列表 */
.dash-mini-list { display: flex; flex-direction: column; gap: 12px; }
.dash-mini-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px; border-radius: 12px;
  background: rgba(255,255,255,.03);
  border: 1px solid rgba(255,255,255,.06);
}
.dash-mini-item .dmi-ico {
  width: 38px; height: 38px; border-radius: 10px; flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center; font-size: 18px;
  background: linear-gradient(135deg, rgba(96,165,250,.25), rgba(34,211,238,.15));
}
.dash-mini-item .dmi-info { flex: 1; min-width: 0; }
.dash-mini-item .dmi-t { font-weight: 700; font-size: 14px; color: #fff; }
.dash-mini-item .dmi-s { color: rgba(255,255,255,.5); font-size: 12px; margin-top: 2px; }
.dash-mini-item .dmi-v {
  font-weight: 900; font-size: 16px; color: #22d3ee;
  font-family: "Inter", "Noto Sans SC", system-ui, sans-serif;
  font-feature-settings: "tnum";
}

/* ========== 新增：应用场景 Scenarios ========== */
.scenarios-section { background: linear-gradient(180deg, var(--bg) 0%, color-mix(in srgb, var(--primary) 6%, var(--bg)) 100%); }
.scenario-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.scenario-card {
  position: relative; background: var(--surface); border-radius: 22px; overflow: hidden;
  border: 1px solid var(--border); box-shadow: var(--shadow-sm);
  transition: transform .35s cubic-bezier(.2,.8,.2,1), box-shadow .3s ease;
  cursor: default;
}
.scenario-card:hover {
  transform: translateY(-10px) scale(1.01);
  box-shadow: 0 30px 60px rgba(15,23,42,.15);
}
.scenario-card .sc-cover {
  height: 180px; position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
}
.scenario-card:nth-child(3n+1) .sc-cover { background: linear-gradient(135deg, #2563eb, #6366f1); }
.scenario-card:nth-child(3n+2) .sc-cover { background: linear-gradient(135deg, #0ea5e9, #06b6d4); }
.scenario-card:nth-child(3n+3) .sc-cover { background: linear-gradient(135deg, #8b5cf6, #ec4899); }
.scenario-card .sc-cover::after {
  content: ""; position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255,255,255,.18) 0, transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(255,255,255,.1) 0, transparent 40%);
}
.scenario-card .sc-cover .sc-ico {
  font-size: 68px; color: #fff;
  filter: drop-shadow(0 8px 24px rgba(0,0,0,.25));
  transition: transform .5s cubic-bezier(.2,.8,.2,1);
  position: relative; z-index: 1;
}
.scenario-card:hover .sc-cover .sc-ico { transform: scale(1.15) rotate(-6deg); }
.scenario-card .sc-body { padding: 26px 24px 28px; }
.scenario-card .sc-title { font-size: 20px; font-weight: 900; letter-spacing: -.3px; margin-bottom: 10px; }
.scenario-card .sc-desc { color: var(--muted); font-size: 14.5px; line-height: 1.75; }
.scenario-card .sc-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }
.scenario-card .sc-tags span {
  font-size: 12px; font-weight: 700; padding: 4px 12px; border-radius: 999px;
  background: color-mix(in srgb, var(--primary) 10%, transparent);
  color: var(--primary);
}

/* ========== FAQ 独立页面 ========== */
.faq-hero {
  position: relative; overflow: hidden;
  padding: 100px 0 70px;
  background: radial-gradient(ellipse at 50% 0%, color-mix(in srgb, var(--primary) 12%, transparent), transparent 70%);
  border-bottom: 1px solid var(--border);
  text-align: center;
}
.faq-hero-eyebrow {
  display: inline-block; font-size: 12px; font-weight: 800; letter-spacing: 3px;
  color: var(--primary); text-transform: uppercase;
  background: color-mix(in srgb, var(--primary) 10%, transparent);
  padding: 5px 14px; border-radius: 20px; margin-bottom: 18px;
}
.faq-hero h2 {
  font-size: 42px; font-weight: 900; letter-spacing: -1.5px; margin: 0 0 14px;
  background: linear-gradient(135deg, var(--text), color-mix(in srgb, var(--primary) 70%, var(--text)));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.faq-hero p { color: var(--muted); font-size: 16px; max-width: 620px; margin: 0 auto; line-height: 1.7; }

.faq-page-wrap { max-width: 860px; margin: 0 auto; padding: 64px 0 40px; }

.faq-item {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 16px; margin-bottom: 14px; overflow: hidden;
  transition: box-shadow .25s ease, border-color .25s ease, transform .25s ease;
}
.faq-item:hover {
  border-color: color-mix(in srgb, var(--primary) 40%, var(--border));
  box-shadow: 0 8px 24px rgba(15,23,42,.06);
  transform: translateY(-1px);
}
.faq-item.open {
  border-color: color-mix(in srgb, var(--primary) 55%, var(--border));
  box-shadow: 0 14px 35px rgba(15,23,42,.08);
}
.faq-q {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: 22px 26px; cursor: pointer;
  font-weight: 700; font-size: 16.5px; user-select: none;
  transition: background .2s ease;
}
.faq-q:hover { background: color-mix(in srgb, var(--primary) 5%, transparent); }
.faq-q span:first-child { flex: 1; }
.faq-q-num {
  font-size: 12px; font-weight: 900; color: var(--primary);
  background: color-mix(in srgb, var(--primary) 10%, transparent);
  padding: 3px 10px; border-radius: 8px; flex-shrink: 0;
}
.faq-q-icon {
  width: 32px; height: 32px; border-radius: 50%; flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center;
  background: color-mix(in srgb, var(--primary) 10%, transparent);
  color: var(--primary); font-size: 18px; font-weight: 900;
  transition: transform .35s cubic-bezier(.2,.8,.2,1), background .3s ease, color .3s ease;
}
.faq-item.open .faq-q-icon {
  transform: rotate(45deg);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
}
.faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height .45s cubic-bezier(.2,.8,.2,1), padding .35s ease;
  padding: 0 26px;
}
.faq-item.open .faq-a {
  max-height: 500px;
  padding: 0 26px 24px;
}
.faq-a-body {
  color: var(--muted); font-size: 15px; line-height: 1.85;
  padding-top: 18px;
  border-top: 1px dashed var(--border);
}

/* FAQ 页面底部 CTA */
.faq-cta {
  margin: 20px 0 80px;
  border-radius: 20px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--primary) 8%, var(--surface)), var(--surface));
  border: 1px solid var(--border);
  padding: 48px 40px;
  text-align: center;
}
.faq-cta-inner { max-width: 520px; margin: 0 auto; }
.faq-cta h3 { font-size: 24px; font-weight: 900; margin: 0 0 10px; letter-spacing: -.3px; }
.faq-cta p { color: var(--muted); font-size: 15px; margin: 0 0 24px; line-height: 1.7; }
@media (max-width: 820px) {
  .faq-hero { padding: 80px 0 50px; }
  .faq-hero h2 { font-size: 32px; }
  .faq-page-wrap { padding: 40px 0 20px; }
  .faq-q { padding: 18px 20px; font-size: 15px; }
  .faq-a { padding: 0 20px; }
  .faq-item.open .faq-a { padding: 0 20px 20px; }
  .faq-cta { padding: 36px 24px; margin-bottom: 60px; }
}

/* ========== docs.html 开发文档页样式 ========== */
.docs-toc {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px 16px;
  position: sticky;
  top: 90px;
}
.docs-toc .toc-title {
  display: block;
  padding: 9px 12px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  font-size: 14px;
  transition: background .2s ease, color .2s ease;
  margin-top: 4px;
}
.docs-toc .toc-title:hover { background: color-mix(in srgb, var(--primary) 8%, transparent); color: var(--primary); }
.docs-toc .toc-title.active { background: linear-gradient(135deg, color-mix(in srgb, var(--primary) 14%, transparent), color-mix(in srgb, var(--accent) 10%, transparent)); color: var(--primary); }
.docs-toc .toc-sub {
  display: block;
  padding: 6px 12px 6px 28px;
  font-size: 13px;
  color: var(--muted);
  border-radius: 7px;
  text-decoration: none;
  transition: color .2s ease, background .2s ease;
}
.docs-toc .toc-sub:hover { color: var(--primary); background: color-mix(in srgb, var(--primary) 5%, transparent); }

.docs-main .doc-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px 32px 18px;
  margin-bottom: 22px;
  transition: box-shadow .25s ease, border-color .25s ease;
}
.docs-main .doc-section:hover {
  border-color: color-mix(in srgb, var(--primary) 32%, var(--border));
  box-shadow: 0 10px 30px rgba(15,23,42,.06);
}
.docs-main .doc-section-title {
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -.3px;
  margin: 0 0 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}
.docs-main .doc-item { padding: 6px 0 18px; }
.docs-main .doc-item-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 800;
}
.docs-main .doc-item-no {
  font-size: 12px;
  font-weight: 900;
  color: var(--primary);
  background: color-mix(in srgb, var(--primary) 10%, transparent);
  padding: 2px 8px;
  border-radius: 6px;
  font-family: var(--font-mono);
}
.docs-main .doc-item-desc {
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.9;
  padding-left: 48px;
}

@media (max-width: 960px) {
  .container[style*="grid-template-columns"] { grid-template-columns: 1fr !important; }
  .docs-toc { position: static; margin-bottom: 6px; }
  .docs-main .doc-item-desc { padding-left: 0; }
  .docs-main .doc-section { padding: 22px 20px; }
}

/* ========== api-ref.html API 参考页样式 ========== */
.apir-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 0;
  margin-bottom: 22px;
  overflow: hidden;
  transition: box-shadow .25s ease, border-color .25s ease;
}
.apir-card:hover {
  border-color: color-mix(in srgb, var(--primary) 32%, var(--border));
  box-shadow: 0 12px 32px rgba(15,23,42,.07);
}
.apir-head {
  padding: 20px 28px 12px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--primary) 7%, transparent), transparent);
  border-bottom: 1px solid var(--border);
}
.apir-head-main {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.apir-head-main h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 900;
  letter-spacing: -.2px;
}
.apir-method {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 7px;
  font-size: 11.5px;
  font-weight: 900;
  color: #fff;
  letter-spacing: 1px;
}
.apir-path {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 13.5px;
}
.apir-path code {
  display: inline-block;
  padding: 6px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  word-break: break-all;
}
.apir-desc {
  padding: 18px 28px 0;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 1.9;
}
.apir-params {
  padding: 16px 28px;
}
.apir-params-h {
  font-size: 13.5px;
  font-weight: 900;
  margin: 8px 0 12px;
  padding: 6px 12px;
  background: color-mix(in srgb, var(--primary) 8%, transparent);
  border-radius: 8px;
  color: var(--primary);
  display: inline-block;
  letter-spacing: .5px;
}
.apir-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.apir-table thead {
  background: color-mix(in srgb, var(--primary) 5%, transparent);
}
.apir-table th, .apir-table td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  line-height: 1.7;
}
.apir-table th {
  font-weight: 800;
  font-size: 13px;
  color: var(--muted);
  letter-spacing: .5px;
}
.apir-table code {
  background: var(--bg);
  padding: 1px 7px;
  border-radius: 5px;
  font-family: var(--font-mono);
  font-size: 12.5px;
}
.apir-resp {
  background: #0b1120;
  color: #e2e8f0;
  border: 1px solid #1e293b;
  border-radius: 10px;
  padding: 16px 18px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  margin: 0;
  overflow-x: auto;
}

.apir-lang-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 5px;
}
.apir-lang-tab {
  flex: 1;
  min-width: 0;
  padding: 7px 10px;
  border: 0;
  background: transparent;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--muted);
  border-radius: 7px;
  cursor: pointer;
  transition: background .2s ease, color .2s ease;
}
.apir-lang-tab:hover { color: var(--text); }
.apir-lang-tab.active {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
}

.apir-code-section { }
.apir-code-title {
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -.3px;
  margin: 0 0 18px;
}
.apir-code-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 12px 18px;
  background: color-mix(in srgb, var(--primary) 10%, transparent);
  border: 1px solid var(--border);
  border-bottom: 0;
  border-radius: 10px 10px 0 0;
  flex-wrap: wrap;
}
.apir-code-lang {
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 1.5px;
  padding: 3px 9px;
  border-radius: 6px;
  background: var(--primary);
  color: #fff;
  text-transform: uppercase;
}
.apir-code-title-el, .apir-code-head .apir-code-title {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text);
  flex: 1;
}
.apir-copy-btn {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  padding: 5px 12px;
  border-radius: 7px;
  font-size: 12.5px;
  font-weight: 700;
  cursor: pointer;
  transition: all .2s ease;
}
.apir-copy-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-1px);
}
.apir-code-pre {
  margin: 0;
  padding: 0;
}
.apir-code-pre code {
  display: block;
  padding: 18px 20px;
  background: #0b1120;
  color: #cbd5e1;
  border: 1px solid #1e293b;
  border-top: 0;
  border-radius: 0 0 10px 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.7;
  overflow-x: auto;
  white-space: pre;
}

/* ========== 新增：底部 CTA 号召区 ========== */
.cta-section {
  position: relative; overflow: hidden;
  background:
    radial-gradient(600px 300px at 10% 50%, color-mix(in srgb, var(--primary) 26%, transparent), transparent 60%),
    radial-gradient(600px 300px at 90% 50%, color-mix(in srgb, var(--accent) 24%, transparent), transparent 60%),
    linear-gradient(135deg, #0f172a 0%, #1e1b4b 100%);
  color: #fff;
  padding: 96px 0;
}
.cta-section .grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}
.cta-inner {
  position: relative; z-index: 2;
  text-align: center; max-width: 780px; margin: 0 auto;
}
.cta-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12.5px; font-weight: 800; letter-spacing: 2px; text-transform: uppercase;
  color: #93c5fd;
  background: rgba(96,165,250,.14); border: 1px solid rgba(96,165,250,.3);
  padding: 6px 16px; border-radius: 999px; margin-bottom: 22px;
}
.cta-inner h2 {
  font-size: 46px; font-weight: 900; letter-spacing: -1.2px; line-height: 1.2;
  margin: 0 0 18px;
}
.cta-inner h2 .grad {
  background: linear-gradient(135deg, #60a5fa, #22d3ee, #a78bfa);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  background-size: 200% 200%; animation: gradShift 5s ease infinite;
}
.cta-inner p { color: rgba(226,232,240,.85); font-size: 18px; margin: 0 0 36px; line-height: 1.75; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cta-meta {
  display: flex; justify-content: center; flex-wrap: wrap; gap: 28px; margin-top: 36px;
  color: rgba(203,213,225,.75); font-size: 14px; font-weight: 600;
}
.cta-meta span { display: inline-flex; align-items: center; gap: 8px; }
.cta-meta span::before {
  content: "✓"; color: #10b981; font-weight: 900;
}

/* ========== Contact 联系页布局优化 ========== */
.contact-hero {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 50%, #0f172a 100%);
  color: #fff; padding: 80px 0 70px; position: relative; overflow: hidden;
}
.contact-hero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 40%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 75%);
}
.contact-hero .container { position: relative; z-index: 2; text-align: center; }
.contact-hero h2 { font-size: 44px; font-weight: 900; letter-spacing: -1px; margin: 0 0 14px; }
.contact-hero p { color: rgba(226,232,240,.85); font-size: 17px; margin: 0; max-width: 640px; margin: 0 auto; line-height: 1.7; }

.contact-wrap { max-width: 1180px; margin: 0 auto; padding: 64px 0 80px; }
.contact-grid {
  display: grid; grid-template-columns: 1fr 1.4fr; gap: 36px; align-items: start;
}
.contact-info-panel {
  background: var(--surface); border: 1px solid var(--border); border-radius: 22px;
  padding: 34px 30px; box-shadow: var(--shadow-sm);
  position: sticky; top: 96px;
}
.contact-info-panel .cip-head { margin-bottom: 26px; }
.contact-info-panel .cip-head h3 { font-size: 22px; font-weight: 900; letter-spacing: -.3px; margin: 0 0 6px; }
.contact-info-panel .cip-head p { color: var(--muted); font-size: 14.5px; margin: 0; line-height: 1.7; }
.cip-items { display: flex; flex-direction: column; gap: 16px; }
.cip-item {
  display: flex; gap: 16px;
  padding: 18px; border-radius: 14px;
  background: color-mix(in srgb, var(--primary) 5%, transparent);
  border: 1px solid color-mix(in srgb, var(--primary) 15%, transparent);
  transition: transform .2s ease, box-shadow .2s ease;
}
.cip-item:hover { transform: translateX(4px); box-shadow: var(--shadow-sm); }
.cip-item .ci-ico {
  width: 48px; height: 48px; border-radius: 14px; flex-shrink: 0;
  display: inline-flex; align-items: center; justify-content: center; font-size: 22px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--primary) 18%, transparent), color-mix(in srgb, var(--accent) 14%, transparent));
  border: 1px solid color-mix(in srgb, var(--primary) 25%, transparent);
}
.cip-item .ci-text .ci-t { font-weight: 800; font-size: 14.5px; margin-bottom: 4px; }
.cip-item .ci-text .ci-v { color: var(--muted); font-size: 14px; line-height: 1.6; word-break: break-all; }

.contact-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 22px;
  padding: 38px 36px; box-shadow: var(--shadow);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 13.5px; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.field label .req { color: #ef4444; margin-left: 4px; }
.field input, .field select, .field textarea {
  width: 100%; font-family: inherit; font-size: 15px; padding: 13px 16px;
  border: 1.5px solid var(--border); border-radius: 12px; background: var(--bg); color: var(--text);
  transition: border-color .18s ease, box-shadow .18s ease, background .18s ease;
}
.field input:hover, .field select:hover, .field textarea:hover { border-color: color-mix(in srgb, var(--primary) 40%, var(--border)); }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--primary) 16%, transparent);
  background: var(--surface);
}
.field textarea { min-height: 120px; resize: vertical; line-height: 1.7; }
.form-alert { padding: 14px 18px; border-radius: 12px; margin-bottom: 20px; font-size: 14px; display: none; font-weight: 600; }
.form-alert.show { display: block; animation: shake .4s ease; }
@keyframes shake {
  0%,100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}
.form-alert.error { background: #fef2f2; color: #b91c1c; border: 1px solid #fecaca; }
.form-alert.success { background: #ecfdf5; color: #047857; border: 1px solid #a7f3d0; animation: none; }

.submit-wrap { display: flex; align-items: center; gap: 18px; margin-top: 8px; }
.submit-wrap .privacy-note { font-size: 12.5px; color: var(--muted); line-height: 1.6; }

/* ========== Footer 升级 ========== */
.footer {
  background: linear-gradient(180deg, #0b1220 0%, #070b14 100%);
  color: #cbd5e1; padding: 72px 0 28px;
  position: relative; overflow: hidden;
}
.footer::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(96,165,250,.4), transparent);
}
.footer a { color: #94a3b8; transition: color .2s ease; }
.footer a:hover { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.4fr; gap: 48px; }
.footer .f-brand {
  font-size: 20px; font-weight: 800; color: #fff;
  display: flex; align-items: center; gap: 10px; letter-spacing: -.3px;
}
.footer .f-brand .f-brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.footer .f-brand .f-brand-text em {
  font-size: 10px; font-weight: 500; letter-spacing: 1.5px; color: rgba(255,255,255,.5);
  font-style: normal; text-transform: uppercase; margin-top: 2px;
}
.footer .f-brand .logo-icon {
  font-size: 26px; width: 38px; height: 38px; display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 10px; color: #fff;
}
.footer .f-desc { margin: 16px 0 20px; font-size: 14.5px; color: #94a3b8; max-width: 300px; line-height: 1.75; }
.f-socials { display: flex; gap: 10px; flex-wrap: wrap; }
.f-socials a {
  width: 40px; height: 40px; border-radius: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.08);
  font-size: 18px; color: #cbd5e1 !important;
  transition: all .2s ease;
}
.f-socials a:hover {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-color: transparent; color: #fff !important; transform: translateY(-2px);
}
.footer h4 { color: #fff; font-size: 15.5px; font-weight: 800; margin: 0 0 18px; letter-spacing: -.2px; position: relative; padding-bottom: 10px; }
.footer h4::after {
  content: ""; position: absolute; bottom: 0; left: 0; width: 28px; height: 2.5px;
  background: linear-gradient(90deg, var(--primary), var(--accent)); border-radius: 2px;
}
.footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 11px; font-size: 14.5px; }
.footer ul li a { display: inline-flex; align-items: center; gap: 6px; position: relative; }
.footer ul li a::before {
  content: "›"; color: var(--primary); font-weight: 900;
  transform: translateX(-4px); opacity: 0; transition: all .2s ease;
}
.footer ul li a:hover::before { transform: translateX(0); opacity: 1; }
.footer .contact-line { font-size: 14.5px; margin: 0 0 12px; color: #94a3b8; display: flex; align-items: flex-start; gap: 8px; line-height: 1.6; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  margin-top: 56px; padding-top: 24px; padding-bottom: 8px;
  font-size: 13.5px; color: #64748b; text-align: center;
  display: flex; justify-content: center; flex-wrap: wrap; gap: 10px 20px;
}
.footer-bottom a { color: #64748b; }
.footer-bottom a:hover { color: #cbd5e1; }

/* ========== Toast 升级 ========== */
.toast {
  position: fixed; bottom: 32px; left: 50%; transform: translateX(-50%) translateY(30px);
  background: linear-gradient(135deg, #0f172a, #1e293b);
  color: #fff;
  padding: 14px 24px;
  border-radius: 14px;
  font-size: 14.5px; font-weight: 600;
  box-shadow: 0 20px 50px rgba(15,23,42,.4);
  border: 1px solid rgba(255,255,255,.1);
  opacity: 0; pointer-events: none; transition: all .35s cubic-bezier(.2,.8,.2,1); z-index: 300;
  backdrop-filter: blur(10px);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast::before {
  content: "✓"; display: inline-flex; align-items: center; justify-content: center;
  width: 22px; height: 22px; border-radius: 50%;
  background: linear-gradient(135deg, #10b981, #059669);
  color: #fff; font-size: 12px; font-weight: 900; margin-right: 10px; vertical-align: middle;
}

/* ========== 响应式 ========== */
@media (max-width: 1100px) {
  .hero h1 { font-size: 50px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-5 { grid-template-columns: repeat(3, 1fr); }
  .grid-6 { grid-template-columns: repeat(3, 1fr); }
  .dash-overview, .dash-kpis-pane { grid-template-columns: repeat(2, 1fr); }
  .dash-chart-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .feature-block { grid-template-columns: 1fr; gap: 40px; }
  .feature-block.reverse { direction: ltr; }
}
@media (max-width: 820px) {
  .nav-menu {
    display: none; position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; background: var(--surface);
    border-bottom: 1px solid var(--border); padding: 14px 16px; gap: 6px;
    box-shadow: 0 12px 30px rgba(15,23,42,.1);
  }
  .nav-menu.open { display: flex; }
  .nav-toggle { display: block; }
  .hero { padding: 90px 0 80px; }
  .hero h1 { font-size: 40px; letter-spacing: -1.4px; }
  .hero p.lead { font-size: 17px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .hero-feature-row { gap: 10px 18px; font-size: 13.5px; }
  .section { padding: 72px 0; }
  .section-head h2 { font-size: 30px; }
  .grid-2, .grid-3, .grid-4, .grid-5, .grid-6, .scenario-grid { grid-template-columns: 1fr; }
  .dash-overview { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .contact-info-panel { position: static; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .cta-inner h2 { font-size: 34px; }
  .feature-block .text h2 { font-size: 30px; }
  .submit-wrap { flex-direction: column; align-items: stretch; }
  .contact-hero h2 { font-size: 34px; }
  .stat .v { font-size: 32px; }
}
@media (max-width: 480px) {
  .hero h1 { font-size: 33px; }
  .dash-overview, .dash-kpis-pane { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr; }
}

/* ========== section 分隔装饰 ========== */
.section-divider-wave {
  display: block; width: 100%; height: 48px;
}