/* ==========================================================================
   广西鸿凯天亮科技有限公司 - 官方网站样式规范
   设计语言：Pure Studio Light / 纯净明亮现代科技企业标准 (Stripe & Apple 风格)
   全端适配：320px 手机、Pad 平板、桌面与 4K 超宽屏全响应式无缝流动
   高刷优化：彻底适配 120Hz/144Hz 显示器，0 丢帧丝滑高帧率渲染
   色调统一：100% 统一纯净浅色，杜绝深浅色混杂与突兀深色块
   ========================================================================== */

:root {
  /* 基础纯净浅色调色板 */
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-hover: #ffffff;
  --bg-subtle: #f1f5f9;
  --bg-alt: #f8fafc;
  --bg-blue-light: #eff6ff;
  --bg-emerald-light: #ecfdf5;

  /* 边框体系（极细浅色线条） */
  --border-light: #f1f5f9;
  --border-subtle: #e2e8f0;
  --border-medium: #cbd5e1;
  --border-blue: #bfdbfe;
  --border-focus: #3b82f6;

  /* 核心品牌与功能色彩 */
  --blue-700: #1d4ed8;
  --blue-600: #2563eb;
  --blue-500: #3b82f6;
  --blue-400: #60a5fa;
  --cyan-600: #0284c7;
  --emerald-600: #059669;
  --amber-500: #f59e0b;

  /* 深度文字排版阶梯（高对比度，清晰易读） */
  --text-title: #0f172a;
  --text-headline: #1e293b;
  --text-body: #334155;
  --text-muted: #64748b;
  --text-faint: #94a3b8;

  /* 字体系统 */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  /* 几何半径 */
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 20px;
  --r-full: 9999px;

  /* 细腻柔和光影 */
  --shadow-sm: 0 1px 3px 0 rgba(15, 23, 42, 0.04);
  --shadow-card: 0 2px 8px -2px rgba(15, 23, 42, 0.06), 0 1px 3px 0 rgba(15, 23, 42, 0.04);
  --shadow-card-hover: 0 12px 28px -6px rgba(15, 23, 42, 0.09), 0 4px 8px -2px rgba(15, 23, 42, 0.03);
  --shadow-window: 0 20px 40px -12px rgba(15, 23, 42, 0.1), 0 0 0 1px rgba(15, 23, 42, 0.06);
}

/* ==========================================================================
   全局重置与硬件加速
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-sans);
  background-color: var(--bg-page);
  color: var(--text-body);
  line-height: 1.6;
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  position: relative;
  background-color: var(--bg-page);
  /* 优雅浅色极简微网格背景 */
  background-image:
    radial-gradient(circle at 50% 0%, rgba(37, 99, 235, 0.06) 0%, transparent 50%),
    linear-gradient(to right, rgba(15, 23, 42, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(15, 23, 42, 0.03) 1px, transparent 1px);
  background-size: 100% 100%, 48px 48px, 48px 48px;
  background-position: center top, center center, center center;
  overflow-x: hidden;
}

/* 120Hz/144Hz 高刷下屏幕外独立区块延迟渲染 */
.section-perf-contain {
  content-visibility: auto;
  contain-intrinsic-size: 750px;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  width: 100%;
  max-width: 1220px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 24px);
}

section[id] {
  scroll-margin-top: 74px;
}

/* ==========================================================================
   全响应式纯白顶部导航（独立 GPU 合成层）
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  transform: translateZ(0);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo-img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  flex-shrink: 0;
}

.brand-title-group {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--text-title);
  letter-spacing: -0.01em;
  line-height: 1.25;
}

.brand-sub {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--blue-600);
  letter-spacing: 0.04em;
  font-weight: 600;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 8px 0;
  position: relative;
}

.nav-link:hover {
  color: var(--blue-600);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--blue-600);
  transition: width 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  border-radius: 2px;
}

.nav-link:hover::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.btn-header-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  background: var(--blue-600);
  color: #ffffff;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--r-full);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
  transform: translateZ(0);
  transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.btn-header-cta:hover {
  background: var(--blue-700);
  transform: translateY(-1px) translateZ(0);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
  color: #ffffff;
}

.mobile-nav-toggle {
  display: none;
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-sm);
  color: var(--text-title);
  padding: 7px;
  cursor: pointer;
  line-height: 0;
}

.mobile-nav-toggle:hover {
  background: var(--bg-subtle);
}

/* 移动端全响应式导航抽屉 */
.mobile-nav-drawer {
  display: none;
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  background: #ffffff;
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 16px 32px rgba(15, 23, 42, 0.1);
  padding: 16px 24px 24px;
  flex-direction: column;
  gap: 4px;
  z-index: 999;
}

.mobile-nav-drawer.open {
  display: flex;
}

.mobile-nav-drawer a {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-headline);
  padding: 12px 0;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mobile-nav-drawer a:hover {
  color: var(--blue-600);
}

/* ==========================================================================
   Hero 首屏设计（纯净浅色工作室风格）
   ========================================================================== */
.hero-section {
  padding: clamp(48px, 8vw, 84px) 0 clamp(36px, 6vw, 64px);
  text-align: center;
  position: relative;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--r-full);
  background: var(--bg-blue-light);
  border: 1px solid var(--border-blue);
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--blue-600);
  margin-bottom: 22px;
}

.pill-status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--emerald-600);
  box-shadow: 0 0 6px rgba(5, 150, 105, 0.5);
}

.hero-headline {
  font-size: clamp(2.1rem, 5.5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.03em;
  color: var(--text-title);
  margin-bottom: 18px;
}

.headline-highlight {
  color: var(--blue-600);
  background: linear-gradient(135deg, #2563eb, #0284c7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subheading {
  font-size: clamp(0.98rem, 2vw, 1.15rem);
  color: var(--text-muted);
  max-width: 780px;
  margin: 0 auto 36px;
  line-height: 1.75;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 52px;
  flex-wrap: wrap;
}

.btn-primary-luminous {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: var(--r-full);
  background: var(--blue-600);
  color: #ffffff;
  font-size: 0.95rem;
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.28);
  transform: translateZ(0);
  transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.btn-primary-luminous:hover {
  background: var(--blue-700);
  transform: translateY(-2px) translateZ(0);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.38);
  color: #ffffff;
}

.btn-secondary-luminous {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--r-full);
  background: #ffffff;
  color: var(--text-headline);
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid var(--border-medium);
  box-shadow: var(--shadow-sm);
  transform: translateZ(0);
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.btn-secondary-luminous:hover {
  background: var(--bg-subtle);
  border-color: #94a3b8;
  transform: translateY(-2px) translateZ(0);
}

/* ==========================================================================
   首屏交互式轻盈白工作台（纯净浅色架构，无深色斑块）
   ========================================================================== */
.studio-console-wrapper {
  max-width: 1100px;
  margin: 0 auto;
  border-radius: var(--r-xl);
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-window);
  overflow: hidden;
  text-align: left;
  transform: translateZ(0);
}

.console-topbar {
  background: #f8fafc;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  flex-wrap: wrap;
  gap: 12px;
}

.window-dots {
  display: flex;
  gap: 7px;
}

.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}
.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.console-tabs {
  display: flex;
  gap: 4px;
  background: #e2e8f0;
  padding: 4px;
  border-radius: var(--r-full);
}

.console-tab-btn {
  padding: 6px 18px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  border: none;
  background: transparent;
  border-radius: var(--r-full);
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: inherit;
  white-space: nowrap;
}

.console-tab-btn.active {
  background: #ffffff;
  color: var(--blue-600);
  box-shadow: 0 1px 4px rgba(15, 23, 42, 0.08);
}

.console-engine-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--emerald-600);
  font-weight: 600;
}

.beacon-pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--emerald-600);
  box-shadow: 0 0 6px rgba(5, 150, 105, 0.6);
}

.console-body {
  position: relative;
  background: #ffffff;
}

.console-panel {
  display: none;
}

.console-panel.active {
  display: grid;
  grid-template-columns: 1.25fr 1fr;
}

/* 浅色专属工作台视窗预览区 */
.panel-studio-workspace {
  background: #f8fafc;
  border-right: 1px solid var(--border-subtle);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  justify-content: center;
}

.workspace-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.workspace-status-tag {
  color: var(--emerald-600);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
}

/* 模拟视觉模型解析的浅色场景流 */
.timeline-track-box {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-md);
  padding: 16px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.track-row {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.82rem;
}

.track-time {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--blue-600);
  background: var(--bg-blue-light);
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid var(--border-blue);
  flex-shrink: 0;
}

.track-event {
  color: var(--text-headline);
  font-weight: 500;
  flex: 1;
}

.track-badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--r-full);
}

.badge-highlight {
  background: #fef3c7;
  color: #b45309;
}

.badge-norm {
  background: #f1f5f9;
  color: #475569;
}

.script-preview-card {
  background: #ffffff;
  border: 1px solid var(--border-blue);
  border-left: 3px solid var(--blue-600);
  border-radius: var(--r-sm);
  padding: 14px 16px;
  font-size: 0.88rem;
  color: var(--text-body);
  line-height: 1.6;
  box-shadow: var(--shadow-sm);
}

.script-preview-card strong {
  color: var(--blue-600);
  font-family: var(--font-mono);
}

/* 右侧参数与数据指标区 */
.panel-info-side {
  padding: clamp(24px, 4vw, 36px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: #ffffff;
}

.info-badge-tag {
  display: inline-block;
  font-size: 0.74rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--blue-600);
  background: var(--bg-blue-light);
  border: 1px solid var(--border-blue);
  padding: 3px 10px;
  border-radius: 4px;
  width: fit-content;
  margin-bottom: 12px;
}

.info-title {
  font-size: clamp(1.2rem, 2.5vw, 1.45rem);
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 12px;
  line-height: 1.35;
}

.info-desc {
  font-size: 0.94rem;
  color: var(--text-body);
  line-height: 1.7;
  margin-bottom: 22px;
}

.info-points {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.info-point-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-headline);
  line-height: 1.5;
}

.info-point-item svg {
  width: 16px;
  height: 16px;
  color: var(--blue-600);
  flex-shrink: 0;
  margin-top: 2px;
}

.metric-bar-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding-top: 18px;
  border-top: 1px solid var(--border-subtle);
}

.metric-val {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-title);
  font-family: var(--font-mono);
}

.metric-lbl {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ==========================================================================
   通用区块版式规范
   ========================================================================== */
.section-wrapper {
  padding: clamp(56px, 8vw, 96px) 0;
  position: relative;
}

.section-head-center {
  text-align: center;
  max-width: 740px;
  margin: 0 auto clamp(36px, 6vw, 56px);
}

.section-eyebrow {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--blue-600);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--text-title);
  margin-bottom: 14px;
}

.section-subtitle {
  font-size: clamp(0.95rem, 1.8vw, 1.08rem);
  color: var(--text-muted);
  line-height: 1.7;
}

/* ==========================================================================
   产品旗舰专区：两款重磅产品深度解析
   ========================================================================== */
.product-stack {
  display: flex;
  flex-direction: column;
  gap: clamp(32px, 5vw, 48px);
}

.product-hero-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-card);
  padding: clamp(24px, 5vw, 44px);
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: clamp(24px, 5vw, 48px);
  align-items: center;
  transform: translateZ(0);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.product-hero-card:hover {
  border-color: var(--border-blue);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-3px) translateZ(0);
}

.product-hero-card.reverse {
  grid-template-columns: 1fr 1.15fr;
}

.prod-tag {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 700;
  font-family: var(--font-mono);
  padding: 3px 10px;
  border-radius: 4px;
  background: var(--bg-blue-light);
  color: var(--blue-700);
  border: 1px solid var(--border-blue);
  margin-bottom: 16px;
}

.prod-title {
  font-size: clamp(1.5rem, 3vw, 1.95rem);
  font-weight: 800;
  color: var(--text-title);
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.prod-desc {
  font-size: 0.98rem;
  color: var(--text-body);
  line-height: 1.75;
  margin-bottom: 24px;
}

.feature-stack {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 26px;
}

.feature-stack li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.92rem;
  color: var(--text-body);
}

.feature-stack li svg {
  width: 18px;
  height: 18px;
  color: var(--blue-600);
  flex-shrink: 0;
  margin-top: 3px;
}

.tag-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-pill {
  font-size: 0.8rem;
  padding: 4px 12px;
  border-radius: var(--r-full);
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
}

/* 浅色视窗框架 */
.device-frame {
  position: relative;
  background: #ffffff;
  border-radius: var(--r-lg);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transform: translateZ(0);
}

.device-frame-header {
  background: #f8fafc;
  border-bottom: 1px solid var(--border-subtle);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.device-frame-image {
  width: 100%;
  height: clamp(220px, 30vw, 320px);
  object-fit: cover;
  display: block;
}

.device-frame-footer {
  padding: 11px 16px;
  background: #ffffff;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.84rem;
  color: var(--text-headline);
}

/* ==========================================================================
   企业级定制 Bento 便当盒（纯净浅色架构图与微小组件，绝无深色斑块）
   ========================================================================== */
.bento-matrix {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}

.bento-tile {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transform: translateZ(0);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.bento-tile:hover {
  border-color: var(--border-blue);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-3px) translateZ(0);
}

.tile-col-7 { grid-column: span 7; }
.tile-col-5 { grid-column: span 5; }
.tile-col-6 { grid-column: span 6; }

/* 纯净浅色信息架构微视窗 */
.bento-visual-header {
  background: #f8fafc;
  border-bottom: 1px solid var(--border-subtle);
  padding: 24px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.bento-step-flow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}

.step-node {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-md);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-headline);
  box-shadow: var(--shadow-sm);
}

.step-node svg {
  width: 16px;
  height: 16px;
  color: var(--blue-600);
}

.step-arrow {
  color: var(--border-medium);
  font-weight: 700;
  font-size: 0.9rem;
}

.bento-tag-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.bento-badge-pill {
  font-size: 0.74rem;
  font-weight: 600;
  font-family: var(--font-mono);
  padding: 3px 10px;
  border-radius: 4px;
  background: var(--bg-blue-light);
  color: var(--blue-700);
  border: 1px solid var(--border-blue);
}

.bento-text-body {
  padding: clamp(20px, 4vw, 30px);
}

.bento-heading {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 10px;
}

.bento-summary {
  font-size: 0.92rem;
  color: var(--text-body);
  line-height: 1.7;
}

/* ==========================================================================
   客户口碑专区（纯白卡片，真实肖像）
   ========================================================================== */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.testimonial-card {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-lg);
  padding: 26px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transform: translateZ(0);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.testimonial-card:hover {
  border-color: var(--border-blue);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px) translateZ(0);
}

.testi-stars {
  color: var(--amber-500);
  font-size: 0.9rem;
  margin-bottom: 14px;
  display: flex;
  gap: 3px;
}

.testi-quote-text {
  font-size: 0.92rem;
  color: var(--text-headline);
  line-height: 1.7;
  margin-bottom: 22px;
}

.testi-author-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
}

.testi-avatar-img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border-blue);
  flex-shrink: 0;
}

.testi-author-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-title);
  display: flex;
  align-items: center;
  gap: 5px;
}

.verified-check {
  color: var(--blue-600);
  width: 14px;
  height: 14px;
}

.testi-author-org {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ==========================================================================
   关于鸿凯天亮与研发实力
   ========================================================================== */
.about-split-container {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  align-items: center;
}

.about-content-block {
  padding: clamp(24px, 5vw, 48px);
}

.about-content-block h3 {
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: 800;
  color: var(--text-title);
  margin-bottom: 18px;
}

.about-content-block p {
  font-size: 0.98rem;
  color: var(--text-body);
  line-height: 1.8;
  margin-bottom: 22px;
}

.about-stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  padding-top: 24px;
  border-top: 1px solid var(--border-light);
}

.stat-metric {
  font-size: clamp(1.5rem, 3vw, 1.85rem);
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--blue-600);
}

.stat-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.about-media-block {
  position: relative;
  height: 100%;
  min-height: 360px;
  background: #f8fafc;
}

.about-media-block img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ==========================================================================
   商务合作与咨询表单
   ========================================================================== */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: clamp(24px, 4vw, 36px);
}

.contact-info-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-tile {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-md);
  padding: 22px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow-card);
}

.contact-icon-wrapper {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--bg-blue-light);
  border: 1px solid var(--border-blue);
  color: var(--blue-600);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-tile-meta {
  display: flex;
  flex-direction: column;
}

.contact-tile-title {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.contact-tile-value {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-title);
}

.contact-qr-wrapper {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-md);
  padding: 22px;
  display: flex;
  align-items: center;
  gap: 18px;
  box-shadow: var(--shadow-card);
}

.qr-code-img {
  width: 88px;
  height: 88px;
  border-radius: var(--r-sm);
  border: 1px solid var(--border-subtle);
  background: #fff;
  padding: 4px;
  flex-shrink: 0;
}

.contact-form-box {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--r-xl);
  padding: clamp(24px, 4vw, 36px);
  box-shadow: var(--shadow-card);
}

.form-group-item {
  margin-bottom: 20px;
}

.form-group-item label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-headline);
  margin-bottom: 8px;
}

.form-input-element {
  width: 100%;
  padding: 12px 16px;
  background: #ffffff;
  border: 1px solid var(--border-medium);
  border-radius: var(--r-sm);
  color: var(--text-title);
  font-size: 16px; /* 防止 iOS Safari 自动放大输入框 */
  font-family: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-input-element:focus {
  outline: none;
  border-color: var(--blue-600);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

textarea.form-input-element {
  min-height: 100px;
  resize: vertical;
}

/* ==========================================================================
   合规法律底栏（纯净白底，工信部 ICP 规范与公安备案）
   ========================================================================== */
.site-footer-wrapper {
  background: #ffffff;
  border-top: 1px solid var(--border-subtle);
  padding: 60px 0 36px;
  margin-top: 60px;
}

.footer-nav-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 44px;
  border-bottom: 1px solid var(--border-light);
}

.footer-company-name {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--text-title);
  margin-bottom: 12px;
}

.footer-company-summary {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 340px;
}

.footer-col-title {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-headline);
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links-list a, .footer-links-list span {
  font-size: 0.86rem;
  color: var(--text-muted);
}

.footer-links-list a:hover {
  color: var(--blue-600);
}

.footer-compliance-center {
  padding-top: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-align: center;
}

.compliance-links-row {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.86rem;
}

.icp-legal-link {
  color: var(--text-body);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
  transition: color 0.15s ease;
}

.icp-legal-link:hover {
  color: var(--blue-600);
  text-decoration: underline;
}

.police-legal-link {
  color: var(--text-body);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
  transition: color 0.15s ease;
}

.police-legal-link:hover {
  color: var(--blue-600);
}

.compliance-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: var(--blue-600);
}

.compliance-divider {
  color: var(--border-medium);
}

.copyright-notice {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ==========================================================================
   全响应式媒体查询
   ========================================================================== */
@media (max-width: 1080px) {
  .testimonial-grid { grid-template-columns: repeat(2, 1fr); }
  .tile-col-7, .tile-col-5 { grid-column: span 6; }
}

@media (max-width: 960px) {
  .console-panel.active { grid-template-columns: 1fr; }
  .panel-studio-workspace { border-right: none; border-bottom: 1px solid var(--border-subtle); }
  .product-hero-card, .product-hero-card.reverse { grid-template-columns: 1fr; }
  .about-split-container { grid-template-columns: 1fr; }
  .about-media-block { min-height: 280px; }
  .footer-nav-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 850px) {
  .nav-links, .btn-header-cta { display: none; }
  .mobile-nav-toggle { display: block; }
  .contact-layout { grid-template-columns: 1fr; }
  .tile-col-7, .tile-col-5, .tile-col-6 { grid-column: span 12; }
}

@media (max-width: 640px) {
  .hero-cta-group { flex-direction: column; width: 100%; }
  .btn-primary-luminous, .btn-secondary-luminous { width: 100%; }
  .console-tabs { width: 100%; justify-content: center; }
  .console-tab-btn { flex: 1; padding: 6px 8px; font-size: 0.76rem; text-align: center; }
  .testimonial-grid { grid-template-columns: 1fr; }
  .about-stat-row { grid-template-columns: 1fr; gap: 14px; }
  .footer-nav-grid { grid-template-columns: 1fr; gap: 28px; }
  .compliance-links-row { flex-direction: column; gap: 8px; }
  .compliance-divider { display: none; }
  .bento-step-flow { flex-direction: column; align-items: stretch; }
  .step-arrow { display: none; }
}

/* 按钮点击态硬件加速反馈 */
.btn-primary-luminous:active, .btn-secondary-luminous:active, .btn-header-cta:active {
  transform: scale(0.98) translateZ(0);
}