/* =============================================================
   智睿腾科技 — 全站样式（企业AI解决方案官网）
   设计系统：深绿主色 + 暖橙点缀（oklch 色彩空间）
   单文件加载，跨页缓存，配合 WhiteNoise 预压缩传输
   ============================================================= */

/* ---------- 设计令牌 ---------- */
:root {
  /* Primary - Deep Green */
  --primary-50: 0.95 0.02 155;
  --primary-100: 0.90 0.04 155;
  --primary-200: 0.82 0.07 155;
  --primary-300: 0.70 0.10 155;
  --primary-400: 0.50 0.12 155;
  --primary-500: 0.35 0.12 155;
  --primary-600: 0.30 0.11 155;
  --primary-700: 0.25 0.10 155;
  --primary-800: 0.20 0.08 155;
  --primary-900: 0.15 0.06 155;
  --primary-950: 0.10 0.04 155;

  /* Accent - Warm Orange/Gold */
  --accent-50: 0.97 0.02 65;
  --accent-100: 0.93 0.05 65;
  --accent-200: 0.88 0.09 65;
  --accent-300: 0.80 0.13 65;
  --accent-400: 0.72 0.15 65;
  --accent-500: 0.65 0.16 65;
  --accent-600: 0.58 0.15 65;
  --accent-700: 0.50 0.14 65;

  /* Secondary - Medium Green */
  --secondary-50: 0.96 0.02 155;
  --secondary-500: 0.48 0.10 155;
  --secondary-600: 0.42 0.09 155;
  --secondary-700: 0.36 0.08 155;

  /* Background - Light Beige-Green */
  --background-50: 0.98 0.01 145;
  --background-100: 0.96 0.02 145;
  --background-200: 0.92 0.03 145;
  --background-300: 0.88 0.04 145;
  --background-400: 0.80 0.05 145;
  --background-600: 0.64 0.05 145;

  /* Foreground - Dark Forest */
  --foreground-400: 0.55 0.06 150;
  --foreground-500: 0.45 0.07 150;
  --foreground-600: 0.38 0.07 150;
  --foreground-700: 0.30 0.06 150;
  --foreground-800: 0.22 0.05 150;
  --foreground-900: 0.15 0.04 150;

  --font-body: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

  --maxw: 96rem;               /* 两侧留白收窄，较 max-w-7xl 宽约 20% */
  --nav-h: 4rem;
  --radius-lg: 1rem;
  --radius-xl: 1.25rem;
  --radius-2xl: 1.5rem;
}

/* ---------- 重置 ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  color: oklch(var(--foreground-900));
  background-color: oklch(var(--background-50));
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.2; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; }

/* ---------- 布局工具 ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: 1rem;
}
@media (min-width: 768px) { .container { padding-inline: 1.5rem; } }
@media (min-width: 1024px) { .container { padding-inline: 2rem; } }

.section { padding-block: 4rem; }
@media (min-width: 768px) { .section { padding-block: 6rem; } }
.section--tight { padding-block: 3rem; }
@media (min-width: 768px) { .section--tight { padding-block: 4rem; } }

.bg-light { background: oklch(var(--background-50)); }
.bg-soft { background: oklch(var(--background-100)); }
.bg-primary-tint { background: oklch(var(--primary-50)); }

.section-header { text-align: center; max-width: 42rem; margin: 0 auto 3rem; }
@media (min-width: 768px) { .section-header { margin-bottom: 4rem; } }
.eyebrow {
  display: inline-block;
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.15em;
  text-transform: uppercase; margin-bottom: 0.75rem;
  color: oklch(var(--accent-600));
}
.eyebrow--secondary { color: oklch(var(--secondary-600)); }
.eyebrow--primary { color: oklch(var(--primary-600)); }
.eyebrow--light { color: oklch(var(--accent-400)); }
.section-title {
  font-size: clamp(1.5rem, 4vw, 2.25rem);
  color: oklch(var(--foreground-900)); margin-bottom: 1rem;
}
.section-subtitle { color: oklch(var(--foreground-600)); font-size: 1rem; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.75rem 1.5rem; border-radius: 999px; font-weight: 500;
  white-space: nowrap; transition: all 0.2s ease; cursor: pointer; font-size: 1rem;
}
.btn i { font-size: 1.1em; }
.btn-primary { background: oklch(var(--primary-500)); color: oklch(var(--background-50)); }
.btn-primary:hover { background: oklch(var(--primary-600)); }
.btn-accent { background: oklch(var(--accent-500)); color: oklch(var(--background-50)); }
.btn-accent:hover { background: oklch(var(--accent-600)); }
.btn-outline {
  border: 2px solid oklch(var(--primary-500)); color: oklch(var(--primary-700));
}
.btn-outline:hover { background: oklch(var(--primary-50)); }
.btn-outline-light {
  border: 2px solid oklch(var(--background-400) / 0.8); color: oklch(var(--background-200));
}
.btn-outline-light:hover { background: oklch(var(--background-50) / 0.1); }

/* ---------- 导航栏 ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  background: oklch(var(--background-50) / 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid oklch(var(--foreground-900) / 0.06);
  transition: box-shadow 0.3s ease;
}
.site-header.scrolled {
  box-shadow: 0 1px 3px oklch(var(--foreground-900) / 0.08);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: var(--nav-h);
}
@media (min-width: 768px) { .nav { height: 4.5rem; } }
.brand { display: flex; align-items: center; gap: 0.5rem; flex-shrink: 0; }
.brand__logo { height: 3.75rem; width: auto; display: block; }
@media (max-width: 480px) { .brand__logo { height: 3rem; } }
.brand__mark {
  width: 2rem; height: 2rem; border-radius: 0.5rem;
  background: oklch(var(--primary-500)); color: oklch(var(--background-50));
  display: flex; align-items: center; justify-content: center; font-size: 1.125rem;
}
.brand__name {
  font-size: 1.125rem; font-weight: 700; letter-spacing: -0.01em;
  transition: color 0.3s ease; color: oklch(var(--background-50));
}
.scrolled .brand__name { color: oklch(var(--primary-800)); }

.nav__links { display: none; align-items: center; gap: 0.25rem; }
@media (min-width: 768px) { .nav__links { display: flex; } }
.nav__link {
  padding: 0.5rem 0.75rem; border-radius: 999px; font-size: 0.875rem;
  font-weight: 500; white-space: nowrap; transition: all 0.2s ease;
  color: oklch(var(--foreground-600));
}
.nav__link:hover { color: oklch(var(--primary-700)); background: oklch(var(--primary-50) / 0.6); }
.nav__link.active { color: oklch(var(--primary-700)); background: oklch(var(--primary-50)); }

.nav__toggle {
  display: flex; width: 2.5rem; height: 2.5rem; border-radius: 0.5rem;
  align-items: center; justify-content: center; font-size: 1.25rem;
  color: oklch(var(--foreground-700)); transition: background 0.2s;
}
@media (min-width: 768px) { .nav__toggle { display: none; } }

.nav__mobile {
  display: block; overflow: hidden; max-height: 0; opacity: 0;
  transition: max-height 0.3s ease, opacity 0.3s ease;
  background: oklch(var(--background-50) / 0.98); backdrop-filter: blur(12px);
  border-top: 1px solid oklch(var(--background-200) / 0.6);
}
.nav__mobile.open { max-height: 30rem; opacity: 1; }
@media (min-width: 768px) { .nav__mobile { display: none; } }
.nav__mobile-inner { display: flex; flex-direction: column; gap: 0.25rem; padding-block: 0.75rem; }
.nav__mobile a {
  padding: 0.75rem 1rem; border-radius: 0.5rem; font-size: 0.875rem; font-weight: 500;
  color: oklch(var(--foreground-600));
}
.nav__mobile a:hover { background: oklch(var(--background-100)); }
.nav__mobile a.active { color: oklch(var(--primary-700)); background: oklch(var(--primary-50)); }

/* ---------- 首页 Hero ---------- */
.hero {
  position: relative; display: flex; align-items: center; overflow: hidden;
  min-height: 600px; background: oklch(var(--primary-950));
}
@media (min-width: 768px) { .hero { min-height: 700px; } }
.hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.6; }
.hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, oklch(var(--primary-950)), oklch(var(--primary-900) / 0.8), oklch(var(--primary-950)));
}
.hero__inner {
  position: relative; z-index: 10; width: 100%;
  padding-block: 5rem; display: flex; flex-direction: column; align-items: center;
  gap: 2.5rem;
}
@media (min-width: 768px) { .hero__inner { padding-block: 7rem; } }
@media (min-width: 1024px) { .hero__inner { flex-direction: row; gap: 4rem; } }
.hero__text { flex: 1; text-align: center; }
@media (min-width: 1024px) { .hero__text { text-align: left; } }
.hero__badge {
  display: inline-flex; align-items: center; gap: 0.5rem; margin-bottom: 1.5rem;
  padding: 0.375rem 0.75rem; border-radius: 999px; font-size: 0.75rem; font-weight: 500;
  background: oklch(var(--primary-500) / 0.2); border: 1px solid oklch(var(--primary-400) / 0.3);
  color: oklch(var(--primary-200));
}
.hero__badge .dot {
  width: 0.5rem; height: 0.5rem; border-radius: 999px; background: oklch(var(--accent-400));
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
.hero__title {
  font-size: clamp(1.875rem, 6vw, 3.75rem); color: oklch(var(--background-50));
  line-height: 1.15; margin-bottom: 1.5rem;
}
.hero__title .hl { color: oklch(var(--primary-300)); }
.hero__subtitle {
  font-size: 1rem; color: oklch(var(--background-300)); max-width: 36rem;
  margin: 0 auto 2rem; line-height: 1.7;
}
@media (min-width: 768px) { .hero__subtitle { font-size: 1.125rem; } }
@media (min-width: 1024px) { .hero__subtitle { margin-inline: 0; } }
.hero__actions { display: flex; flex-direction: column; align-items: center; gap: 1rem; }
@media (min-width: 640px) { .hero__actions { flex-direction: row; justify-content: center; } }
@media (min-width: 1024px) { .hero__actions { justify-content: flex-start; } }
.hero__visual { flex: 1; width: 100%; max-width: 32rem; }
.hero__visual-wrap { position: relative; }
.hero__visual-glow {
  position: absolute; inset: -1rem; border-radius: var(--radius-2xl);
  background: oklch(var(--primary-500) / 0.1); filter: blur(2rem);
}
.hero__visual img { position: relative; border-radius: var(--radius-xl); width: 100%; object-fit: cover; }

/* ---------- 数据条 ---------- */
.stats {
  padding-block: 2.5rem; background: oklch(var(--background-50));
  border-block: 1px solid oklch(var(--background-200) / 0.7);
}
.stats__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
@media (min-width: 768px) { .stats__grid { grid-template-columns: repeat(4, 1fr); gap: 2rem; } }
.stat { text-align: center; }
.stat__value { font-size: clamp(1.875rem, 5vw, 2.25rem); font-weight: 700; color: oklch(var(--primary-600)); margin-bottom: 0.25rem; }
.stat__label { font-size: 0.875rem; color: oklch(var(--foreground-500)); }

/* ---------- 通用卡片 ---------- */
.card {
  background: oklch(var(--background-50)); border-radius: var(--radius-2xl);
  border: 1px solid oklch(var(--background-200) / 0.7); transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.card--hover:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 25px -5px oklch(var(--foreground-900) / 0.1), 0 8px 10px -6px oklch(var(--foreground-900) / 0.1);
}

/* 核心业务卡片 */
.grid-4 { display: grid; grid-template-columns: 1fr; gap: 1.25rem; }
@media (min-width: 640px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .grid-4 { grid-template-columns: repeat(4, 1fr); gap: 1.5rem; } }
.grid-3 { display: grid; grid-template-columns: 1fr; gap: 1.25rem; }
@media (min-width: 640px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .grid-3 { grid-template-columns: repeat(3, 1fr); gap: 1.5rem; } }
.grid-2 { display: grid; grid-template-columns: 1fr; gap: 1.25rem; }
@media (min-width: 640px) { .grid-2 { grid-template-columns: repeat(2, 1fr); } }

.service-card { padding: 1.5rem; }
@media (min-width: 768px) { .service-card { padding: 1.75rem; } }
.service-card__icon {
  width: 3rem; height: 3rem; border-radius: 0.75rem; margin-bottom: 1.25rem;
  display: flex; align-items: center; justify-content: center;
  color: oklch(var(--background-50)); font-size: 1.25rem;
}
.bg-primary { background: oklch(var(--primary-500)); }
.bg-primary-dark { background: oklch(var(--primary-600)); }
.bg-secondary { background: oklch(var(--secondary-500)); }
.bg-accent { background: oklch(var(--accent-500)); }
.service-card h3 { font-size: 1.125rem; font-weight: 600; color: oklch(var(--foreground-900)); margin-bottom: 0.5rem; }
.service-card p { font-size: 0.875rem; color: oklch(var(--foreground-600)); line-height: 1.6; }
.service-card__foot { margin-top: 1rem; padding-top: 1rem; border-top: 1px solid oklch(var(--background-200) / 0.5); }
.link-more {
  display: inline-flex; align-items: center; gap: 0.25rem; font-size: 0.875rem; font-weight: 500;
  color: oklch(var(--primary-600)); transition: color 0.2s;
}
.link-more:hover { color: oklch(var(--primary-700)); }
.link-more i { transition: transform 0.2s; }
.link-more:hover i { transform: translateX(4px); }

/* WhyUs / advantages 卡片 */
.adv-card { padding: 1.5rem; }
@media (min-width: 768px) { .adv-card { padding: 1.75rem; } }
.adv-card__icon {
  width: 3rem; height: 3rem; border-radius: 0.75rem; margin-bottom: 1.25rem;
  display: flex; align-items: center; justify-content: center;
  background: oklch(var(--primary-50)); border: 1px solid oklch(var(--primary-200) / 0.5);
  color: oklch(var(--primary-600)); font-size: 1.25rem;
}
.adv-card h3 { font-size: 1.125rem; font-weight: 600; color: oklch(var(--foreground-900)); margin-bottom: 0.5rem; }
.adv-card p { font-size: 0.875rem; color: oklch(var(--foreground-600)); line-height: 1.6; }

/* ---------- 产品架构 ---------- */
.arch { display: grid; grid-template-columns: 1fr; gap: 3rem; align-items: center; }
@media (min-width: 1024px) { .arch { grid-template-columns: repeat(2, 1fr); gap: 4rem; } }
.arch__title { font-size: clamp(1.5rem, 4vw, 2.25rem); color: oklch(var(--foreground-900)); margin-bottom: 1.25rem; line-height: 1.25; }
.arch__title .hl { color: oklch(var(--primary-600)); }
.arch__desc { color: oklch(var(--foreground-600)); line-height: 1.7; margin-bottom: 2rem; }
.arch__list { display: flex; flex-direction: column; gap: 1rem; }
.arch__item { display: flex; align-items: flex-start; gap: 1rem; }
.arch__num {
  flex-shrink: 0; width: 2rem; height: 2rem; border-radius: 999px; margin-top: 0.125rem;
  display: flex; align-items: center; justify-content: center; font-size: 0.875rem; font-weight: 700;
  background: oklch(var(--primary-100)); color: oklch(var(--primary-700));
}
.arch__item h4 { font-size: 0.875rem; font-weight: 600; color: oklch(var(--foreground-900)); }
.arch__item p { font-size: 0.875rem; color: oklch(var(--foreground-600)); }
.arch__visual { position: relative; }
.arch__visual-glow { position: absolute; inset: -0.75rem; border-radius: var(--radius-2xl); background: oklch(var(--primary-200) / 0.3); filter: blur(1.5rem); }
.arch__visual img { position: relative; border-radius: var(--radius-xl); width: 100%; object-fit: cover; }

/* ---------- CTA ---------- */
.cta { position: relative; overflow: hidden; background: oklch(var(--primary-900)); text-align: center; }
.cta::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at top right, oklch(var(--primary-700) / 0.3), transparent 60%);
}
.cta__inner { position: relative; z-index: 10; }
.cta h2 { font-size: clamp(1.5rem, 4vw, 2.25rem); color: oklch(var(--background-50)); margin-bottom: 1rem; }
.cta p { color: oklch(var(--background-300)); max-width: 36rem; margin: 0 auto 2rem; font-size: 1.05rem; }
.cta__actions { display: flex; flex-direction: column; align-items: center; gap: 1rem; }
@media (min-width: 640px) { .cta__actions { flex-direction: row; justify-content: center; } }

/* ---------- 内页 Hero（页头） ---------- */
.page-hero { padding-top: 6rem; padding-bottom: 3rem; background: oklch(var(--primary-900)); text-align: center; }
@media (min-width: 768px) { .page-hero { padding-top: 8rem; padding-bottom: 4rem; } }
.page-hero h1 { font-size: clamp(1.875rem, 5vw, 3rem); color: oklch(var(--background-50)); margin-bottom: 1rem; }
.page-hero p { color: oklch(var(--background-300)); max-width: 42rem; margin: 0 auto; font-size: 1rem; }
@media (min-width: 768px) { .page-hero p { font-size: 1.125rem; } }

/* ---------- 产品中心 ---------- */
.filter-bar {
  position: sticky; top: var(--nav-h); z-index: 30; padding-block: 0.75rem;
  background: oklch(var(--background-50) / 0.95); backdrop-filter: blur(12px);
  border-bottom: 1px solid oklch(var(--background-200) / 0.7);
}
.filter-bar__row { display: flex; align-items: center; gap: 0.5rem; overflow-x: auto; padding-bottom: 0.25rem; scrollbar-width: none; }
.filter-bar__row::-webkit-scrollbar { display: none; }
.chip {
  flex-shrink: 0; padding: 0.5rem 1rem; border-radius: 999px; font-size: 0.875rem; font-weight: 500;
  white-space: nowrap; transition: all 0.2s ease;
  background: oklch(var(--background-100)); color: oklch(var(--foreground-600));
}
.chip:hover { background: oklch(var(--background-200)); }
.chip.active { background: oklch(var(--primary-500)); color: oklch(var(--background-50)); }
.chip__count { margin-left: 0.375rem; font-size: 0.75rem; opacity: 0.7; }

.product-grid { display: grid; grid-template-columns: 1fr; gap: 1.25rem; align-items: stretch; }
@media (min-width: 768px) { .product-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .product-grid { grid-template-columns: repeat(3, 1fr); gap: 1.5rem; } }
.product-card { display: flex; flex-direction: column; overflow: hidden; height: 100%; }
.product-card__body { flex: 1; padding: 1.5rem; }
@media (min-width: 768px) { .product-card__body { padding: 1.75rem; } }
.product-card__meta { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; margin-bottom: 1rem; }
.badge-cat {
  padding: 0.25rem 0.625rem; border-radius: 999px; font-size: 0.75rem; font-weight: 500;
  background: oklch(var(--primary-50)); color: oklch(var(--primary-700)); border: 1px solid oklch(var(--primary-200) / 0.6);
}
.badge-hot {
  padding: 0.125rem 0.5rem; border-radius: 999px; font-size: 0.75rem; font-weight: 500;
  background: oklch(var(--accent-100)); color: oklch(var(--accent-700));
}
.product-card h3 { font-size: 1.125rem; font-weight: 600; color: oklch(var(--foreground-900)); margin-bottom: 0.75rem; }
.product-card__desc { font-size: 0.875rem; color: oklch(var(--foreground-600)); line-height: 1.6; margin-bottom: 1.25rem; }
.feat-list { display: flex; flex-direction: column; gap: 0.5rem; }
.feat-list li { display: flex; align-items: flex-start; gap: 0.5rem; font-size: 0.875rem; color: oklch(var(--foreground-600)); }
.feat-list i { color: oklch(var(--primary-500)); margin-top: 0.15rem; flex-shrink: 0; }
.feat-more { font-size: 0.75rem; color: oklch(var(--foreground-400)); padding-left: 1.5rem; }

.trial {
  padding: 1rem 1.5rem; border-top: 1px solid oklch(var(--background-200) / 0.5);
  background: oklch(var(--accent-50) / 0.6);
}
@media (min-width: 768px) { .trial { padding-inline: 1.75rem; } }
.trial__inner { display: flex; flex-direction: column; gap: 0.625rem; }
.trial__btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; width: 100%;
  padding: 0.625rem 1rem; border-radius: 0.5rem; font-size: 0.875rem; font-weight: 600;
  background: oklch(var(--accent-500)); color: oklch(var(--background-50)); transition: background 0.2s;
}
.trial__btn:hover { background: oklch(var(--accent-600)); }
.trial__creds { display: flex; align-items: center; justify-content: center; gap: 0.75rem; font-size: 0.75rem; color: oklch(var(--foreground-500)); }
.trial__creds b { font-weight: 600; color: oklch(var(--foreground-700)); }
.trial__sep { color: oklch(var(--background-300)); }

.product-card__foot {
  display: flex; align-items: center; justify-content: space-between; gap: 0.5rem;
  flex-wrap: nowrap;
  padding: 0.75rem 1.25rem; border-top: 1px solid oklch(var(--background-200) / 0.5);
  background: oklch(var(--background-50) / 0.5);
}
@media (min-width: 768px) { .product-card__foot { padding-inline: 1.5rem; } }
.product-card__delivery {
  font-size: 0.75rem; color: oklch(var(--foreground-500));
  flex: 1 1 auto; min-width: 0;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.tags { display: flex; flex-wrap: nowrap; flex-shrink: 0; gap: 0.25rem; justify-content: flex-end; }
.tag { white-space: nowrap; }
.tag {
  padding: 0.125rem 0.5rem; border-radius: 0.375rem; font-size: 0.75rem;
  background: oklch(var(--secondary-50)); color: oklch(var(--secondary-700));
}
.empty-state { text-align: center; padding-block: 5rem; color: oklch(var(--foreground-400)); }

/* ---------- 行业解决方案 ---------- */
.sol-list { display: flex; flex-direction: column; gap: 3rem; }
@media (min-width: 768px) { .sol-list { gap: 4rem; } }
.sol { display: grid; grid-template-columns: 1fr; gap: 2rem; align-items: center; }
@media (min-width: 1024px) { .sol { grid-template-columns: repeat(2, 1fr); gap: 3rem; } }
.sol__media { position: relative; border-radius: var(--radius-2xl); overflow: hidden; }
.sol__media img { width: 100%; height: 16rem; object-fit: cover; }
@media (min-width: 768px) { .sol__media img { height: 20rem; } }
.sol__media::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(to top, oklch(var(--primary-950) / 0.6), transparent);
}
.sol__cat {
  position: absolute; bottom: 1rem; left: 1rem; z-index: 1;
  padding: 0.25rem 0.75rem; border-radius: 999px; font-size: 0.75rem; font-weight: 500;
  background: oklch(var(--accent-500)); color: oklch(var(--background-50));
}
@media (min-width: 1024px) { .sol--reverse .sol__media { order: 2; } }
.sol__title { font-size: clamp(1.5rem, 3.5vw, 1.875rem); color: oklch(var(--foreground-900)); margin-bottom: 0.75rem; }
.sol__desc { color: oklch(var(--foreground-600)); line-height: 1.7; margin-bottom: 1.5rem; }
.sol__label { display: flex; align-items: center; gap: 0.5rem; font-size: 0.875rem; font-weight: 600; color: oklch(var(--foreground-800)); margin-bottom: 0.75rem; }
.sol__label .i-prod { color: oklch(var(--primary-500)); }
.sol__label .i-val { color: oklch(var(--accent-500)); }
.sol__prods { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.5rem; }
.pill {
  padding: 0.375rem 0.75rem; border-radius: 0.5rem; font-size: 0.875rem;
  background: oklch(var(--background-100)); color: oklch(var(--foreground-700));
  border: 1px solid oklch(var(--background-200) / 0.7);
}
.sol__values { display: flex; flex-direction: column; gap: 0.5rem; }
.sol__values li { display: flex; align-items: flex-start; gap: 0.5rem; font-size: 0.875rem; color: oklch(var(--foreground-600)); }
.sol__values i { color: oklch(var(--primary-500)); margin-top: 0.15rem; flex-shrink: 0; }

/* ---------- 服务体系 ---------- */
.svc-card { padding: 1.5rem; }
@media (min-width: 768px) { .svc-card { padding: 1.75rem; } }
.svc-card h3 { font-size: 1.125rem; font-weight: 600; color: oklch(var(--foreground-900)); margin-bottom: 0.5rem; }
.svc-card__desc { font-size: 0.875rem; color: oklch(var(--foreground-600)); line-height: 1.6; margin-bottom: 1rem; }
.svc-card__list { display: flex; flex-direction: column; gap: 0.375rem; }
.svc-card__list li { display: flex; align-items: flex-start; gap: 0.5rem; font-size: 0.875rem; color: oklch(var(--foreground-600)); }
.svc-card__list i { margin-top: 0.15rem; flex-shrink: 0; }
.svc-card__list .i-deliver { color: oklch(var(--primary-500)); }
.svc-card__list .i-topic { color: oklch(var(--secondary-500)); }
.svc-card__audience { margin-top: 1rem; padding-top: 0.75rem; border-top: 1px solid oklch(var(--background-200) / 0.5); font-size: 0.75rem; color: oklch(var(--foreground-500)); }

.method { display: grid; grid-template-columns: 1fr; gap: 1rem; }
@media (min-width: 768px) { .method { grid-template-columns: repeat(5, 1fr); gap: 0.75rem; } }
.method__step { position: relative; }
.method__card { height: 100%; padding: 1.25rem; }
@media (min-width: 768px) { .method__card { padding: 1.5rem; } }
.method__num {
  width: 2.5rem; height: 2.5rem; border-radius: 999px; margin-bottom: 1rem;
  display: flex; align-items: center; justify-content: center; font-size: 0.875rem; font-weight: 700;
  background: oklch(var(--primary-500)); color: oklch(var(--background-50));
}
.method__card h3 { font-size: 1rem; font-weight: 600; color: oklch(var(--foreground-900)); margin-bottom: 0.5rem; }
.method__card p { font-size: 0.875rem; color: oklch(var(--foreground-600)); line-height: 1.6; }
.method__arrow { display: none; }
@media (min-width: 768px) {
  .method__arrow { display: block; position: absolute; top: 50%; right: -0.5rem; z-index: 10; color: oklch(var(--primary-300)); font-size: 1.125rem; }
}

.process-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
@media (min-width: 768px) { .process-grid { grid-template-columns: repeat(5, 1fr); gap: 1rem; } }
.process-card { text-align: center; padding: 1rem; border-radius: var(--radius-lg); background: oklch(var(--background-50)); border: 1px solid oklch(var(--background-200) / 0.7); }
.process-card__num {
  width: 2rem; height: 2rem; border-radius: 999px; margin: 0 auto 0.5rem;
  display: flex; align-items: center; justify-content: center; font-size: 0.75rem; font-weight: 700;
  background: oklch(var(--primary-100)); color: oklch(var(--primary-700));
}
.process-card h4 { font-size: 0.875rem; font-weight: 600; color: oklch(var(--foreground-900)); margin-bottom: 0.25rem; }
.process-card p { font-size: 0.75rem; color: oklch(var(--foreground-500)); }

.metrics { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.5rem; }
@media (min-width: 768px) { .metrics { gap: 0.75rem; } }
.metric {
  padding: 0.5rem 1rem; border-radius: 999px; font-size: 0.875rem;
  background: oklch(var(--background-50)); color: oklch(var(--foreground-700));
  border: 1px solid oklch(var(--background-200) / 0.7);
}

/* ---------- 关于我们 ---------- */
.pos { display: grid; grid-template-columns: 1fr; gap: 2.5rem; align-items: center; }
@media (min-width: 1024px) { .pos { grid-template-columns: repeat(2, 1fr); gap: 4rem; } }
.pos h2 { font-size: clamp(1.5rem, 3.5vw, 1.875rem); color: oklch(var(--foreground-900)); margin-bottom: 1.25rem; }
.pos p { color: oklch(var(--foreground-600)); line-height: 1.7; margin-bottom: 1.25rem; }
.pos__quote { background: oklch(var(--primary-50)); border: 1px solid oklch(var(--primary-200) / 0.5); border-radius: var(--radius-lg); padding: 1.25rem; }
.pos__quote p { color: oklch(var(--primary-800)); font-weight: 600; font-size: 0.875rem; margin: 0; }
.pos img { border-radius: var(--radius-2xl); width: 100%; object-fit: cover; }

.cap-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; }
@media (min-width: 640px) { .cap-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .cap-grid { grid-template-columns: repeat(4, 1fr); gap: 1.25rem; } }
.cap-card { padding: 1.5rem; border-radius: var(--radius-2xl); background: oklch(var(--background-50)); border: 1px solid oklch(var(--background-200) / 0.7); }
.cap-card h3 { font-size: 1rem; font-weight: 600; color: oklch(var(--foreground-900)); margin-bottom: 1rem; }
.cap-card__tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.cap-tag { padding: 0.25rem 0.625rem; border-radius: 0.5rem; font-size: 0.75rem; background: oklch(var(--primary-50)); color: oklch(var(--primary-700)); }

.aud-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; }
@media (min-width: 640px) { .aud-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .aud-grid { grid-template-columns: repeat(3, 1fr); gap: 1.25rem; } }
.aud-card { padding: 1.25rem; border-radius: var(--radius-lg); background: oklch(var(--background-50)); border: 1px solid oklch(var(--background-200) / 0.7); transition: border-color 0.2s; }
.aud-card:hover { border-color: oklch(var(--primary-300) / 0.6); }
.aud-card__head { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.75rem; }
.aud-card__icon { width: 2rem; height: 2rem; border-radius: 999px; display: flex; align-items: center; justify-content: center; background: oklch(var(--accent-100)); color: oklch(var(--accent-600)); font-size: 0.875rem; }
.aud-card h4 { font-weight: 600; color: oklch(var(--foreground-900)); font-size: 1rem; }
.aud-card p { font-size: 0.875rem; color: oklch(var(--foreground-600)); }

/* ---------- 联系我们 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr; gap: 2.5rem; }
@media (min-width: 1024px) { .contact-grid { grid-template-columns: 2fr 3fr; gap: 3rem; } }
.contact-info h2 { font-size: clamp(1.25rem, 3vw, 1.5rem); color: oklch(var(--foreground-900)); margin-bottom: 1.5rem; }
.contact-info__list { display: flex; flex-direction: column; gap: 1.25rem; }
.contact-info__item { display: flex; align-items: flex-start; gap: 1rem; }
.contact-info__icon { flex-shrink: 0; width: 2.5rem; height: 2.5rem; border-radius: 0.75rem; display: flex; align-items: center; justify-content: center; background: oklch(var(--primary-50)); color: oklch(var(--primary-600)); font-size: 1.125rem; }
.contact-info__item h4 { font-size: 0.875rem; font-weight: 600; color: oklch(var(--foreground-800)); }
.contact-info__item p { color: oklch(var(--foreground-600)); }
.contact-map { margin-top: 2rem; border-radius: var(--radius-2xl); overflow: hidden; border: 1px solid oklch(var(--background-200) / 0.7); }
.contact-map iframe { display: block; width: 100%; height: 240px; border: 0; }

.form-card { background: oklch(var(--background-50)); border-radius: var(--radius-2xl); border: 1px solid oklch(var(--background-200) / 0.7); padding: 1.5rem; }
@media (min-width: 768px) { .form-card { padding: 2rem; } }
.form-card h2 { font-size: clamp(1.25rem, 3vw, 1.5rem); color: oklch(var(--foreground-900)); margin-bottom: 0.5rem; }
.form-card__hint { font-size: 0.875rem; color: oklch(var(--foreground-500)); margin-bottom: 1.5rem; }
.form { display: flex; flex-direction: column; gap: 1rem; }
.form-row { display: grid; grid-template-columns: 1fr; gap: 1rem; }
@media (min-width: 640px) { .form-row { grid-template-columns: repeat(2, 1fr); } }
.field label { display: block; font-size: 0.875rem; font-weight: 500; color: oklch(var(--foreground-700)); margin-bottom: 0.375rem; }
.field .req { color: oklch(var(--accent-500)); }
.field input, .field textarea, .field select {
  width: 100%; padding: 0.625rem 1rem; border-radius: 0.5rem; font-size: 0.875rem;
  border: 1px solid oklch(var(--background-200)); background: oklch(var(--background-50)); color: oklch(var(--foreground-900));
  transition: border-color 0.2s, box-shadow 0.2s;
}
.field textarea { resize: vertical; min-height: 6.5rem; }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: oklch(var(--primary-400)); box-shadow: 0 0 0 2px oklch(var(--primary-400) / 0.35);
}
.field__hint { font-size: 0.75rem; color: oklch(var(--foreground-400)); margin-top: 0.25rem; }
.form-alert { padding: 0.75rem; border-radius: 0.5rem; font-size: 0.875rem; }
.form-alert.error { background: oklch(0.95 0.05 25); color: oklch(0.5 0.18 25); }
.form-alert.success { background: oklch(var(--primary-50)); color: oklch(var(--primary-700)); }
/* 蜜罐字段隐藏 */
.hp-field { position: absolute; left: -9999px; top: -9999px; width: 0; height: 0; opacity: 0; overflow: hidden; }

/* ---------- GEO 直接答案 / FAQ ---------- */
.geo-answer { padding-block: 2rem; background: oklch(var(--primary-50)); border-bottom: 1px solid oklch(var(--background-200) / 0.7); }
.geo-answer p { max-width: 60rem; margin: 0 auto; color: oklch(var(--foreground-700)); font-size: 0.95rem; line-height: 1.75; text-align: center; }
.geo-faq__list { max-width: 52rem; margin: 0 auto; display: flex; flex-direction: column; gap: 0.75rem; }
.geo-faq__item { border: 1px solid oklch(var(--background-200) / 0.8); border-radius: var(--radius-lg); background: oklch(var(--background-50)); overflow: hidden; }
.geo-faq__q { list-style: none; cursor: pointer; padding: 1rem 1.25rem; font-weight: 600; color: oklch(var(--foreground-800)); display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.geo-faq__q::-webkit-details-marker { display: none; }
.geo-faq__q::after { content: '\002B'; color: oklch(var(--primary-500)); font-size: 1.25rem; transition: transform 0.2s; }
.geo-faq__item[open] .geo-faq__q::after { content: '\2212'; }
.geo-faq__a { padding: 0 1.25rem 1.25rem; color: oklch(var(--foreground-600)); font-size: 0.9rem; line-height: 1.7; }

/* ---------- 页脚 ---------- */
.footer { background: oklch(var(--primary-900)); color: oklch(var(--background-200)); }
.footer__inner { padding-block: 3rem; }
@media (min-width: 768px) { .footer__inner { padding-block: 4rem; } }
.footer__grid { display: grid; grid-template-columns: 1fr; gap: 2.5rem; margin-bottom: 2.5rem; }
@media (min-width: 768px) { .footer__grid { grid-template-columns: repeat(2, 1fr); gap: 2rem; } }
@media (min-width: 1024px) { .footer__grid { grid-template-columns: repeat(3, 1fr); } }
.footer__brand { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 1rem; }
.footer__brand-name { font-size: 1.125rem; font-weight: 700; color: oklch(var(--background-50)); }
.footer__desc { font-size: 0.875rem; color: oklch(var(--background-300)); line-height: 1.7; }
.footer h4 { font-size: 0.875rem; font-weight: 600; color: oklch(var(--background-50)); margin-bottom: 1rem; letter-spacing: 0.05em; text-transform: uppercase; }
.footer__links { display: flex; flex-direction: column; gap: 0.5rem; }
.footer__links a { font-size: 0.875rem; color: oklch(var(--background-300)); transition: color 0.2s; }
.footer__links a:hover { color: oklch(var(--accent-400)); }
.footer__contact { display: flex; flex-direction: column; gap: 0.75rem; font-size: 0.875rem; color: oklch(var(--background-300)); }
.footer__contact li { display: flex; align-items: flex-start; gap: 0.5rem; }
.footer__contact i { color: oklch(var(--primary-400)); margin-top: 0.15rem; }
.footer__social { display: flex; align-items: center; gap: 0.75rem; }
.footer__social a { width: 2.25rem; height: 2.25rem; border-radius: 999px; border: 1px solid oklch(var(--background-600)); display: flex; align-items: center; justify-content: center; color: oklch(var(--background-300)); font-size: 1.05rem; transition: color 0.2s, border-color 0.2s; }
.footer__social a:hover { color: oklch(var(--accent-400)); border-color: oklch(var(--accent-400)); }
.footer__bottom { border-top: 1px solid oklch(var(--primary-700)); padding-top: 1.5rem; display: flex; flex-direction: column; align-items: center; justify-content: space-between; gap: 0.75rem; }
@media (min-width: 640px) { .footer__bottom { flex-direction: row; } }
.footer__bottom p, .footer__bottom a { font-size: 0.75rem; color: oklch(var(--background-400)); }
.footer__bottom a:hover { color: oklch(var(--background-200)); }

/* ---------- 滚动淡入动画 ---------- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .hero__badge .dot { animation: none; }
}

/* ---------- 滚动条 ---------- */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: oklch(var(--background-100)); }
::-webkit-scrollbar-thumb { background: oklch(var(--secondary-500) / 0.5); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: oklch(var(--secondary-600)); }

/* ---------- 无障碍 ---------- */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }