/* 基础变量 */
:root {
  --primary: #0066FF;
  --primary-light: #3388FF;
  --primary-dark: #004ECC;
  --accent-cyan: #00D4AA;
  --accent-purple: #8B5CF6;
  --accent-orange: #F59E0B;
  --accent-red: #EF4444;
  --bg-dark: #1D4EA0;
  --bg-dark-2: #2B68C8;
  --bg-light: #F7F8FA;
  --text-dark: #0F172A;
  --text-light: #F1F5F9;
  --text-muted: #64748B;
  --border: #E2E8F0;
  --border-light: #E8ECF1;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04), 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.03);
  --shadow-glow: 0 0 40px rgba(var(--theme-overlay-rgb), 0.25);
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.5);
  /* 主题动态变量 — 由 [data-theme] 覆盖 */
  --theme-hero-start: #153A78;
  --theme-hero-end: #3070D0;
  --theme-overlay: #1D4EA0;
  --theme-overlay-rgb: 29, 78, 160;
  --theme-hardware-mid: #2B68C8;
  --theme-footer-end: #153A78;
  --theme-orb1: rgba(0, 150, 255, 0.5);
  --theme-orb2: rgba(0, 230, 195, 0.3);
  --theme-stat: #00D4AA;
}

/* ===== 主题方案 ===== */
/* 1. 连犀蓝（默认） */

/* 2. Linear·极客深紫 */
[data-theme="linear"] {
  --bg-dark: #13131A; --bg-dark-2: #1E1E2E;
  --primary: #5E6AD2; --primary-light: #7C82F0; --primary-dark: #4B54B8;
  --accent-cyan: #8B9CF7;
  --theme-hero-start: #0D0D12; --theme-hero-end: #1E1E2E;
  --theme-overlay: #13131A; --theme-overlay-rgb: 19, 19, 26;
  --theme-hardware-mid: #1E1E2E; --theme-footer-end: #0D0D12;
  --theme-orb1: rgba(94, 106, 210, 0.35); --theme-orb2: rgba(139, 156, 247, 0.15);
  --theme-stat: #7C82F0; --shadow-glow: 0 0 40px rgba(94, 106, 210, 0.25);
}

/* 3. Stripe·菁英蓝紫 */
[data-theme="stripe"] {
  --bg-dark: #111827; --bg-dark-2: #1F2937;
  --primary: #635BFF; --primary-light: #8180FF; --primary-dark: #4B45CC;
  --accent-cyan: #00D9B5;
  --theme-hero-start: #0B1121; --theme-hero-end: #1E2944;
  --theme-overlay: #111827; --theme-overlay-rgb: 17, 24, 39;
  --theme-hardware-mid: #1F2937; --theme-footer-end: #0B1121;
  --theme-orb1: rgba(99, 91, 255, 0.35); --theme-orb2: rgba(0, 217, 181, 0.18);
  --theme-stat: #00D9B5; --shadow-glow: 0 0 40px rgba(99, 91, 255, 0.25);
}

/* 4. Claude·暖陶土 */
[data-theme="claude"] {
  --bg-dark: #332B1D; --bg-dark-2: #3D3423;
  --primary: #C96442; --primary-light: #E07B5A; --primary-dark: #A04D30;
  --accent-cyan: #9BA17B;
  --theme-hero-start: #2C2416; --theme-hero-end: #3D3423;
  --theme-overlay: #332B1D; --theme-overlay-rgb: 51, 43, 29;
  --theme-hardware-mid: #3D3423; --theme-footer-end: #2C2416;
  --theme-orb1: rgba(201, 100, 66, 0.25); --theme-orb2: rgba(155, 161, 123, 0.14);
  --theme-stat: #E07B5A; --shadow-glow: 0 0 40px rgba(201, 100, 66, 0.2);
}

/* 5. Midjourney·午夜艺术 */
[data-theme="midjourney"] {
  --bg-dark: #151933; --bg-dark-2: #20293E;
  --primary: #63B3ED; --primary-light: #90CDF4; --primary-dark: #4A90D9;
  --accent-cyan: #7A320B;
  --theme-hero-start: #0A0D1F; --theme-hero-end: #1C244A;
  --theme-overlay: #151933; --theme-overlay-rgb: 21, 25, 51;
  --theme-hardware-mid: #20293E; --theme-footer-end: #0A0D1F;
  --theme-orb1: rgba(99, 179, 237, 0.3); --theme-orb2: rgba(122, 50, 11, 0.15);
  --theme-stat: #63B3ED; --shadow-glow: 0 0 40px rgba(99, 179, 237, 0.2);
}

/* 6. Notion·轻量灰蓝 */
[data-theme="notion"] {
  --bg-dark: #1E1E1E; --bg-dark-2: #2A2A2A;
  --primary: #2383E2; --primary-light: #5BA3EC; --primary-dark: #1A6BC0;
  --accent-cyan: #8B8B8B;
  --theme-hero-start: #181818; --theme-hero-end: #292929;
  --theme-overlay: #1E1E1E; --theme-overlay-rgb: 30, 30, 30;
  --theme-hardware-mid: #2A2A2A; --theme-footer-end: #181818;
  --theme-orb1: rgba(35, 131, 226, 0.3); --theme-orb2: rgba(139, 139, 139, 0.15);
  --theme-stat: #5BA3EC; --shadow-glow: 0 0 40px rgba(35, 131, 226, 0.2);
}

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

html {
  scroll-behavior: smooth;
}

.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.animate-in {
  opacity: 1;
  transform: translateY(0);
}

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  color: var(--text-dark);
  line-height: 1.6;
  background: #fff;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 60px;
}

.section-header.light {
  color: var(--text-light);
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.08), rgba(0, 212, 170, 0.06));
  color: var(--primary);
  border: 1px solid rgba(0, 102, 255, 0.12);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-title {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.section-desc {
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.75;
  max-width: 560px;
  margin: 0 auto;
}

.section-header.light .section-desc {
  color: rgba(241, 245, 249, 0.75);
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-dark) 100%);
  color: white;
  box-shadow: 0 2px 8px rgba(0, 102, 255, 0.3), 0 0 0 1px rgba(0, 102, 255, 0.2);
  border: none;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 102, 255, 0.4), 0 0 0 1px rgba(0, 102, 255, 0.3);
}

.btn-outline {
  background: transparent;
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
}

.btn-white {
  background: white;
  color: var(--primary);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
}

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.btn-large {
  padding: 16px 32px;
  font-size: 16px;
}

/* 导航 */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all 0.3s ease;
}

.header.scrolled {
  background: rgba(var(--theme-overlay-rgb), 0.85);
  backdrop-filter: blur(24px) saturate(150%);
  -webkit-backdrop-filter: blur(24px) saturate(150%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15), 0 4px 20px rgba(0, 0, 0, 0.08);
  padding: 10px 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: white;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  overflow: hidden;
  flex-shrink: 0;
}

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

.logo-icon svg {
  width: 100%;
  height: 100%;
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-name {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
}

.logo-domain {
  font-size: 12px;
  opacity: 0.7;
  line-height: 1.2;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: color 0.3s;
}

.nav a:hover {
  color: white;
}

.nav .nav-cta {
  background: var(--primary);
  color: white;
  padding: 10px 22px;
  border-radius: 100px;
}

.nav .nav-cta:hover {
  background: var(--primary-dark);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: white;
  transition: all 0.3s;
}

/* Hero */
.hero {
  position: relative;
  min-height: 100vh;
  background: linear-gradient(160deg, var(--theme-hero-start) 0%, var(--bg-dark) 40%, var(--theme-hero-end) 100%);
  color: white;
  display: flex;
  align-items: center;
  padding: 140px 0 100px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  will-change: transform;
}

.orb-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--theme-orb1), transparent 70%);
  top: -120px;
  right: -80px;
  animation: orb-drift 12s ease-in-out infinite;
}

.orb-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--theme-orb2), transparent 70%);
  bottom: -80px;
  left: -60px;
  animation: orb-drift 15s ease-in-out infinite reverse;
}

@keyframes orb-drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(20px, -15px) scale(1.05); }
  66% { transform: translate(-10px, 10px) scale(0.95); }
}

.grid-pattern {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.6;
}

.hero-container {
  position: relative;
  z-index: 2;
  max-width: 1080px;
  margin: 0 auto;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 100px;
  font-size: 14px;
  margin-bottom: 24px;
}

.tag-dot {
  width: 8px;
  height: 8px;
  background: var(--accent-cyan);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero-title {
  font-size: 54px;
  font-weight: 800;
  line-height: 1.12;
  margin-bottom: 24px;
  letter-spacing: -0.025em;
  max-width: 680px;
}

.hero-subtitle {
  font-size: 20px;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.7;
  margin-bottom: 36px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 40px;
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-num {
  font-size: 32px;
  font-weight: 800;
  color: var(--theme-stat);
  line-height: 1.2;
}

.stat-label {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
}

/* Hero 视觉 — 背景图融合 */
.hero-visual {
  position: absolute;
  inset: 0;
  z-index: 1;
  opacity: 0.48;
  pointer-events: none;
  overflow: hidden;
}

.hero-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 2;
  background:
    radial-gradient(ellipse at 80% 50%, transparent 10%, rgba(var(--theme-overlay-rgb), 0.3) 50%, var(--theme-overlay) 100%),
    linear-gradient(to right, var(--theme-overlay) 0%, rgba(var(--theme-overlay-rgb), 0.5) 18%, transparent 40%, transparent 85%, rgba(var(--theme-overlay-rgb), 0.3) 100%),
    linear-gradient(to top, var(--theme-overlay) 0%, transparent 25%, transparent 75%, var(--theme-overlay) 100%);
  pointer-events: none;
}

.hero-bg-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 85% center;
  filter: blur(1px);
  display: block;
}

/* 核心产品 */
.products {
  background: var(--bg-light);
}

/* ================================================================
   主打产品 — 大幅 featured 卡片
   ================================================================ */
.featured-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-bottom: 48px;
}

.featured-card {
  position: relative;
  border-radius: 24px;
  overflow: hidden;
  display: flex;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  transition: transform 0.45s cubic-bezier(0.22, 0.61, 0.36, 1), box-shadow 0.45s;
  box-shadow: 0 1px 3px rgba(0,0,0,.04), 0 8px 30px rgba(0,0,0,.06);
  border: 1px solid rgba(0,0,0,.06);
  min-height: 360px;
}

/* ---- 卡片背景层 ---- */
.featured-card-bg {
  position: absolute;
  inset: 0;
  opacity: 0.5;
  transition: opacity 0.5s, transform 0.5s;
}
.card-ai-call .featured-card-bg {
  background: linear-gradient(160deg, #F0F5FF 0%, #E8F0FE 30%, #ffffff 70%);
}
.card-hardware .featured-card-bg {
  background: linear-gradient(160deg, #ECFDF5 0%, #D1FAE5 20%, #ffffff 65%);
}
.featured-card:hover .featured-card-bg {
  opacity: 0.85;
  transform: scale(1.03);
}

/* ---- BG 装饰圆形 ---- */
.featured-card-bg::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  opacity: 0.07;
  transition: opacity 0.5s, transform 0.5s;
}
.card-ai-call .featured-card-bg::after {
  width: 340px; height: 340px;
  top: -120px; right: -80px;
  background: radial-gradient(circle, #0066FF, transparent 70%);
}
.card-hardware .featured-card-bg::after {
  width: 340px; height: 340px;
  top: -120px; right: -80px;
  background: radial-gradient(circle, #10B981, transparent 70%);
}
.featured-card:hover .featured-card-bg::after {
  opacity: 0.14;
  transform: scale(1.12);
}

/* ---- 内容层 ---- */
.featured-card-inner {
  position: relative;
  z-index: 1;
  padding: 56px 48px 44px;
  display: flex;
  flex-direction: column;
  width: 100%;
}

/* ---- 角标 ---- */
.featured-card .product-badge {
  position: absolute;
  top: 24px;
  right: 28px;
  z-index: 3;
}

/* ---- 标题 ---- */
.featured-card h3 {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.6px;
  margin-bottom: 16px;
  color: #0F172A;
  transition: color 0.35s;
}
.card-ai-call:hover h3   { color: #004ECC; }
.card-hardware:hover h3  { color: #047857; }

/* ---- 描述 ---- */
.featured-desc {
  font-size: 16px;
  line-height: 1.75;
  color: #64748B;
  margin-bottom: 28px;
}

/* ---- 图标 ---- */
.featured-icon {
  width: 88px;
  height: 88px;
  border-radius: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  transition: transform 0.45s cubic-bezier(0.22, 0.61, 0.36, 1), box-shadow 0.45s;
}
.featured-icon svg { width: 42px; height: 42px; }
.featured-icon.blue  { background: linear-gradient(135deg, #EFF6FF, #DBEAFE); color: #0066FF; }
.featured-icon.green { background: linear-gradient(135deg, #ECFDF5, #D1FAE5); color: #059669; }
.featured-card:hover .featured-icon {
  transform: scale(1.08);
  box-shadow: 0 0 32px rgba(0,102,255,.15);
}
.card-hardware:hover .featured-icon {
  box-shadow: 0 0 32px rgba(16,185,129,.15);
}

/* ---- 数据指标条 ---- */
.featured-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 32px;
  margin-top: auto;
}
.fstat {
  background: rgba(255,255,255,.75);
  border-radius: 14px;
  padding: 14px 12px;
  text-align: center;
  border: 1px solid rgba(0,0,0,.06);
  backdrop-filter: blur(4px);
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}
.fstat em {
  display: block;
  font-style: normal;
  font-size: 20px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.3px;
}
.fstat span {
  display: block;
  font-size: 11px;
  color: #94A3B8;
  font-weight: 600;
  margin-top: 2px;
  letter-spacing: 0.3px;
}
.card-ai-call .fstat em   { color: #0066FF; }
.card-hardware .fstat em  { color: #059669; }
.featured-card:hover .fstat {
  border-color: rgba(0,0,0,.1);
}

/* ---- CTA 按钮组 ---- */
.featured-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.featured-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: 12px;
  transition: all 0.35s;
  width: fit-content;
  letter-spacing: 0.2px;
  text-decoration: none;
  cursor: pointer;
}
.featured-cta svg { width: 18px; height: 18px; transition: transform 0.35s; }

/* 主要 CTA — 渐变实心 */
.featured-cta-primary {
  color: #fff;
  background: linear-gradient(135deg, #0066FF, #3388FF);
  box-shadow: 0 4px 16px rgba(0,102,255,.25);
}
/* 次要 CTA — 描边 */
.featured-cta-secondary {
  color: #0066FF;
  background: transparent;
  border: 1.5px solid rgba(0,102,255,.25);
}

.featured-card:hover .featured-cta-primary {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,102,255,.35);
}
.featured-card:hover .featured-cta-secondary {
  transform: translateY(-2px);
  border-color: #0066FF;
  background: rgba(0,102,255,.04);
}
.featured-card:hover .featured-cta svg {
  transform: translateX(4px);
}

.card-hardware:hover .featured-cta-primary {
  box-shadow: 0 8px 28px rgba(16,185,129,.35) !important;
}
.card-hardware:hover .featured-cta-secondary {
  border-color: #059669;
  background: rgba(5,150,105,.04);
  color: #059669;
}

/* ================================================================
   悬停综合效果
   ================================================================ */
.featured-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 48px rgba(0,0,0,.10), 0 0 0 1px rgba(0,0,0,.06);
}

/* ================================================================
   "更多产品" 分隔行
   ================================================================ */
.sub-section-header {
  text-align: center;
  margin-bottom: 24px;
}
.sub-section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: #94A3B8;
  letter-spacing: 1px;
  text-transform: uppercase;
  position: relative;
  padding: 0 32px;
}
.sub-section-tag::before,
.sub-section-tag::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 24px;
  height: 1px;
  background: #E2E8F0;
}
.sub-section-tag::before  { left: 0; }
.sub-section-tag::after   { right: 0; }

/* ================================================================
   次要产品 — 紧凑型网格
   ================================================================ */
.sub-product-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.product-card {
  background: #ffffff;
  border-radius: 24px;
  padding: 52px 44px 42px;
  box-shadow: 0 1px 2px rgba(0,0,0,.03), 0 4px 12px rgba(0,0,0,.04);
  transition: all 0.45s cubic-bezier(0.22, 0.61, 0.36, 1);
  border: 1px solid rgba(0,0,0,.06);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}

/* ===== 卡片背景光晕（始终微现） ===== */
.product-card::after {
  content: '';
  position: absolute;
  top: -60%;
  right: -30%;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  opacity: 0.06;
  transition: opacity 0.5s, transform 0.5s;
  pointer-events: none;
}
.card-ai-call::after      { background: radial-gradient(circle, #0066FF, transparent 70%); }
.card-lead-mining::after  { background: radial-gradient(circle, #8B5CF6, transparent 70%); }
.card-manual-crm::after   { background: radial-gradient(circle, #00D4AA, transparent 70%); }
.card-hardware::after     { background: radial-gradient(circle, #10B981, transparent 70%); }

.product-card:hover::after {
  opacity: 0.12;
  transform: scale(1.15);
}

/* ===== 顶部色条 ===== */
.product-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  opacity: 0;
  transition: opacity 0.45s;
  z-index: 1;
}

.card-ai-call::before      { background: linear-gradient(90deg, #0066FF, #5B9EFF); }
.card-lead-mining::before  { background: linear-gradient(90deg, #8B5CF6, #B794F4); }
.card-manual-crm::before   { background: linear-gradient(90deg, #00D4AA, #5EEAD4); }
.card-hardware::before     { background: linear-gradient(90deg, #10B981, #6EE7B7); }

.product-card:hover::before {
  opacity: 1;
}

/* ===== 悬停效果 ===== */
.product-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 40px rgba(0,0,0,.08), 0 0 0 1px rgba(0,0,0,.08), 0 0 60px rgba(0,102,255,.04);
  border-color: rgba(0,0,0,.1);
}

/* ===== 角标 ===== */
.product-badge {
  position: absolute;
  top: 22px;
  right: 22px;
  font-size: 11px;
  font-weight: 700;
  padding: 5px 14px;
  border-radius: 100px;
  letter-spacing: 0.6px;
  z-index: 2;
  transition: transform 0.35s, box-shadow 0.35s;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.product-card:hover .product-badge {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0,0,0,.15);
}

.badge-hot       { background: rgba(239,68,68,.92); color: #fff; }
.badge-new       { background: rgba(139,92,246,.92); color: #fff; }
.badge-recommend { background: rgba(0,212,170,.92); color: #fff; }
.badge-device    { background: rgba(16,185,129,.92); color: #fff; }

/* ===== 图标区域 ===== */
.product-icon {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
  transition: transform 0.45s cubic-bezier(0.22, 0.61, 0.36, 1), box-shadow 0.45s;
}

.product-card:hover .product-icon {
  transform: scale(1.08);
}

.icon-glow {
  position: absolute;
  inset: -8px;
  border-radius: 26px;
  opacity: 0;
  transition: opacity 0.45s;
  z-index: 0;
}

.product-card:hover .icon-glow {
  opacity: 0.45;
}

.card-ai-call .icon-glow      { box-shadow: 0 0 28px rgba(0,102,255,.3); }
.card-lead-mining .icon-glow  { box-shadow: 0 0 28px rgba(139,92,246,.3); }
.card-manual-crm .icon-glow   { box-shadow: 0 0 28px rgba(0,212,170,.3); }
.card-hardware .icon-glow     { box-shadow: 0 0 28px rgba(16,185,129,.3); }

.product-icon svg {
  width: 34px;
  height: 34px;
  position: relative;
  z-index: 1;
}

.product-icon.blue   { background: linear-gradient(135deg, #EFF6FF, #DBEAFE); color: #0066FF; }
.product-icon.purple { background: linear-gradient(135deg, #F5F3FF, #EDE9FE); color: #8B5CF6; }
.product-icon.cyan   { background: linear-gradient(135deg, #ECFDF5, #D1FAE5); color: #059669; }
.product-icon.green  { background: linear-gradient(135deg, #ECFDF5, #D1FAE5); color: #059669; }

/* ===== 标题 ===== */
.product-card h3 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--text-dark);
  letter-spacing: -0.5px;
  transition: color 0.35s;
  position: relative;
  z-index: 1;
}

.product-card:hover h3 {
  color: #004ECC;
}
.card-lead-mining:hover h3  { color: #6D28D9; }
.card-manual-crm:hover h3   { color: #047857; }
.card-hardware:hover h3     { color: #047857; }

/* ===== 数据亮点 ===== */
.product-stat {
  font-size: 15px;
  color: #94A3B8;
  margin-bottom: 14px;
  font-weight: 500;
  position: relative;
  z-index: 1;
}
.product-stat span {
  position: relative;
  z-index: 1;
}
.card-ai-call .product-stat span      { color: #0066FF; font-weight: 800; font-size: 16px; }
.card-lead-mining .product-stat span  { color: #8B5CF6; font-weight: 800; font-size: 16px; }
.card-manual-crm .product-stat span   { color: #059669; font-weight: 800; font-size: 16px; }
.card-hardware .product-stat span     { color: #059669; font-weight: 800; font-size: 16px; }

/* ===== 描述 ===== */
.product-card p {
  color: #64748B;
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 24px;
  flex: 1;
  position: relative;
  z-index: 1;
}

/* ===== CTA 按钮 ===== */
.product-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
  color: #0066FF;
  transition: gap 0.35s, color 0.35s;
  margin-top: auto;
  position: relative;
  z-index: 1;
}
.product-cta svg {
  width: 18px;
  height: 18px;
  transition: transform 0.35s;
}
.product-card:hover .product-cta {
  gap: 10px;
}
.product-card:hover .product-cta svg {
  transform: translateX(4px);
}

/* 各卡片 CTA 颜色 */
.card-ai-call .product-cta      { color: #0066FF; }
.card-lead-mining .product-cta  { color: #8B5CF6; }
.card-manual-crm .product-cta   { color: #059669; }
.card-hardware .product-cta     { color: #059669; }

.card-ai-call:hover .product-cta      { color: #004ECC; }
.card-lead-mining:hover .product-cta  { color: #6D28D9; }
.card-manual-crm:hover .product-cta   { color: #047857; }
.card-hardware:hover .product-cta     { color: #047857; }

/* 智能硬件 */
.hardware {
  background: linear-gradient(180deg, var(--theme-overlay) 0%, var(--theme-hardware-mid) 50%, var(--theme-hero-start) 100%);
  color: white;
}

.hardware-showcase {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 48px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  padding: 48px;
  overflow: hidden;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.hardware-showcase-text {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.showcase-tag {
  display: inline-block;
  align-self: flex-start;
  padding: 6px 14px;
  background: rgba(0, 212, 170, 0.12);
  color: var(--accent-cyan);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
}

.hardware-showcase-text h3 {
  font-size: 32px;
  font-weight: 800;
  line-height: 1.3;
}

.hardware-showcase-text > p {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.7;
}

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

.showcase-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  color: rgba(255, 255, 255, 0.85);
}

.showcase-features svg {
  flex-shrink: 0;
}

.hardware-showcase-img {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.35);
}

.hardware-showcase-img img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.5s ease;
}

.hardware-showcase:hover .hardware-showcase-img img {
  transform: scale(1.02);
}

.hardware-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.hardware-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
}

.hardware-card:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-4px);
}

.hardware-img {
  height: 180px;
  background: rgba(15, 23, 42, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.hardware-img svg,
.hardware-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  border-radius: 8px;
}

.hardware-info {
  padding: 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.hardware-info h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

.hardware-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.hardware-tags span {
  padding: 4px 10px;
  background: rgba(0, 102, 255, 0.15);
  color: var(--primary-light);
  border-radius: 100px;
  font-size: 12px;
}

.hardware-info ul {
  list-style: none;
  margin-bottom: 20px;
}

.hardware-info li {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 8px;
  padding-left: 16px;
  position: relative;
}

.hardware-info li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background: var(--accent-cyan);
  border-radius: 50%;
}

.hardware-info li strong {
  color: white;
  font-weight: 500;
}

.hardware-advantages {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.adv-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.8);
  padding: 6px 10px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 8px;
}

/* AI 外呼 · 行业应用 */
.industries {
  background: white;
}

.industry-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.industry-card {
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  display: block;
  text-decoration: none;
  color: inherit;
}

.industry-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent-cyan));
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.industry-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0, 102, 255, 0.12);
  border-color: var(--primary-light);
}

.industry-card:hover::before {
  transform: scaleX(1);
}

.industry-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 102, 255, 0.06);
  border-radius: 50%;
  transition: all 0.3s;
}

.industry-card:hover .industry-icon {
  background: rgba(0, 102, 255, 0.12);
  transform: scale(1.05);
}

.industry-icon svg {
  width: 40px;
  height: 40px;
}

.industry-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-dark);
}

.industry-card p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 14px;
  line-height: 1.5;
}

.industry-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

.industry-action-detail {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(0, 102, 255, 0.08);
  color: var(--primary);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.25s;
  pointer-events: none;
}

.industry-action-call {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 16px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white;
  border: none;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s;
  position: relative;
  z-index: 5;
  box-shadow: 0 2px 10px rgba(0, 102, 255, 0.25);
}

.industry-action-call:hover {
  box-shadow: 0 4px 18px rgba(0, 102, 255, 0.4);
  transform: translateY(-1px);
}

.industry-action-call:active {
  transform: scale(0.97);
}

.industry-card:hover .industry-action-detail {
  background: var(--primary);
  color: white;
}

.industry-card:hover .industry-action-call {
  box-shadow: 0 4px 20px rgba(0, 102, 255, 0.45);
}

/* 定制专属行业卡片保留 badge 样式 */
.industry-badge {
  display: inline-block;
  padding: 5px 14px;
  background: rgba(0, 102, 255, 0.08);
  color: var(--primary);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  transition: all 0.3s;
}

.industry-card:hover .industry-badge {
  background: var(--primary);
  color: white;
}

.industry-badge.accent {
  background: rgba(0, 212, 170, 0.12);
  color: #059669;
}

.industry-card-custom {
  background: var(--bg-light);
  border: 2px dashed rgba(0, 102, 255, 0.2);
  color: inherit;
}

.industry-card-custom .industry-icon {
  background: rgba(0, 102, 255, 0.05);
  color: var(--primary);
  width: 64px;
  height: 64px;
}

.industry-card-custom h3 {
  color: var(--text-dark);
  font-size: 18px;
}

.industry-card-custom p {
  color: var(--text-muted);
}

.industry-card-custom .industry-badge.accent {
  background: rgba(0, 102, 255, 0.08);
  color: var(--primary);
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 500;
  box-shadow: none;
}

.industry-card-custom:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0, 102, 255, 0.1);
  border-color: var(--primary-light);
  border-style: solid;
}

.industry-card-custom:hover .industry-icon {
  background: rgba(0, 102, 255, 0.12);
  transform: scale(1.05);
}

/* 行业详情弹窗 */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(var(--theme-overlay-rgb), 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  padding: 20px;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal-container {
  background: white;
  border-radius: 24px;
  max-width: 980px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.35);
  transform: translateY(24px) scale(0.98);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.active .modal-container {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: fixed;
  top: 24px;
  right: 32px;
  z-index: 100;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: rgba(255, 255, 255, 0.9);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all 0.2s;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.modal-close:hover {
  background: white;
  color: var(--text-dark);
  transform: rotate(90deg);
}

.modal-content {
  padding: 0;
}

.modal-hero {
  background: linear-gradient(135deg, #0a1628 0%, #1a3a5f 50%, #0d2137 100%);
  color: white;
  padding: 56px 56px 48px;
  position: relative;
  overflow: hidden;
}

.modal-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 102, 255, 0.25) 0%, transparent 70%);
  pointer-events: none;
}

.modal-hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 212, 170, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.modal-industry-header {
  display: flex;
  align-items: center;
  gap: 24px;
  position: relative;
  z-index: 1;
}

.modal-industry-header .industry-icon {
  margin: 0;
  flex-shrink: 0;
  width: 88px;
  height: 88px;
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.modal-industry-header .industry-icon svg {
  width: 44px;
  height: 44px;
}

.modal-industry-header h2 {
  font-size: 38px;
  font-weight: 800;
  margin-bottom: 8px;
  color: white;
  letter-spacing: -0.5px;
}

.modal-industry-header p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.75);
  font-weight: 500;
}

.modal-body {
  padding: 48px 56px 56px;
}

.modal-section {
  margin-bottom: 36px;
}

.modal-section:last-of-type {
  margin-bottom: 0;
}

.modal-section h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-dark);
}

.modal-section h3::before {
  content: '';
  display: inline-block;
  width: 5px;
  height: 22px;
  background: linear-gradient(180deg, var(--primary), var(--accent-cyan));
  border-radius: 3px;
}

.modal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.modal-tags span {
  padding: 10px 20px;
  background: rgba(0, 102, 255, 0.06);
  color: var(--primary);
  border-radius: 100px;
  font-size: 15px;
  font-weight: 500;
  transition: all 0.2s;
}

.modal-tags span:hover {
  background: rgba(0, 102, 255, 0.12);
  transform: translateY(-2px);
}

.script-box {
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  border-radius: 16px;
  padding: 32px;
  border-left: 5px solid var(--primary);
}

.script-box .script-text {
  font-size: 16px;
  color: var(--text-dark);
  line-height: 1.9;
  margin-bottom: 22px;
  padding-left: 16px;
  border-left: 2px solid transparent;
}

.script-box .script-text:last-child {
  margin-bottom: 0;
}

.script-box .script-text.ai-line {
  border-left-color: var(--primary);
}

.script-box .script-text.customer-line {
  border-left-color: var(--accent-cyan);
}

.script-box .ai-label {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 700;
  margin-right: 12px;
  vertical-align: middle;
}

.script-box .ai-label.ai {
  background: var(--primary);
  color: white;
}

.script-box .ai-label.customer {
  background: var(--accent-cyan);
  color: white;
}

.modal-case-list {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.modal-case-list span {
  padding: 12px 22px;
  background: white;
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-dark);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.modal-cta {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.modal-cta .btn {
  flex: 1;
  justify-content: center;
  min-width: 200px;
  padding: 16px 28px;
  font-size: 16px;
  font-weight: 600;
}

@media (max-width: 768px) {
  .modal-overlay {
    padding: 0;
    align-items: flex-end;
  }

  .modal-container {
    border-radius: 24px 24px 0 0;
    max-height: 92vh;
    max-width: 100%;
  }

  .modal-hero {
    padding: 40px 24px 32px;
  }

  .modal-industry-header {
    flex-direction: column;
    text-align: center;
    gap: 18px;
  }

  .modal-industry-header .industry-icon {
    width: 72px;
    height: 72px;
  }

  .modal-industry-header h2 {
    font-size: 28px;
  }

  .modal-industry-header p {
    font-size: 15px;
  }

  .modal-body {
    padding: 32px 24px 40px;
  }

  .modal-close {
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
  }

  .script-box {
    padding: 20px;
  }

  .modal-cta .btn {
    min-width: 100%;
  }
}

/* 解决方案 */
.solutions {
  background: white;
}

.solution-flow {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 0;
  margin-top: 56px;
  margin-bottom: 60px;
  padding-top: 48px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

.flow-step {
  flex: 1;
  min-width: 180px;
  max-width: 220px;
  text-align: center;
  padding: 28px 20px;
  background: var(--bg-light);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.flow-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--primary);
  color: white;
  border-radius: 50%;
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 16px;
}

.flow-step h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.flow-step p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

.flow-arrow {
  width: 30px;
  min-width: 30px;
  position: relative;
  align-self: center;
}

.flow-arrow::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent-cyan));
}

.flow-arrow::before {
  content: '';
  position: absolute;
  top: 50%;
  right: 0;
  width: 10px;
  height: 10px;
  border-top: 2px solid var(--accent-cyan);
  border-right: 2px solid var(--accent-cyan);
  transform: translateY(-50%) rotate(45deg);
}

.solution-features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  text-align: center;
  padding: 32px 24px;
  background: var(--bg-light);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: all 0.3s;
}

.feature-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.feature-card svg {
  margin-bottom: 16px;
}

.feature-card h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

/* 客户案例 */
.cases {
  background: var(--bg-light);
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}

.case-item {
  background: linear-gradient(180deg, #ffffff 0%, #fafbfc 100%);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 24px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 80px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.case-item:hover {
  box-shadow: var(--shadow-md), 0 0 20px rgba(0, 102, 255, 0.04);
  border-color: rgba(0, 102, 255, 0.2);
  transform: translateY(-3px);
}

.case-logo {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-dark);
  text-align: center;
  word-break: break-all;
}

.case-logo-img {
  max-width: 100%;
  max-height: 48px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: grayscale(0%);
  transition: all 0.3s;
}

.case-item:hover .case-logo-img {
  transform: scale(1.05);
}

/* 关于我们 */
.about {
  background: white;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: start;
}

.about-content .section-tag {
  margin-bottom: 16px;
}

.about-content .section-title {
  margin-bottom: 24px;
}

.about-content p {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.9;
  margin-bottom: 16px;
}

.about-content strong {
  color: var(--text-dark);
}

.about-highlights {
  display: flex;
  gap: 32px;
  margin-top: 32px;
}

.highlight {
  display: flex;
  flex-direction: column;
}

.highlight strong {
  font-size: 28px;
  color: var(--primary);
  font-weight: 800;
}

.highlight span {
  font-size: 14px;
  color: var(--text-muted);
}

.about-contact {
  background: linear-gradient(135deg, #f8f9fb 0%, #eef1f6 100%);
  border-radius: var(--radius);
  padding: 40px;
  border: 1px solid var(--border-light);
}

.about-contact h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 24px;
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  background: white;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  text-decoration: none;
  color: var(--text-dark);
  transition: all 0.3s;
}

.contact-item:hover {
  border-color: var(--primary-light);
  box-shadow: var(--shadow);
}

.contact-item svg {
  flex-shrink: 0;
  color: var(--primary);
}

.contact-item div {
  display: flex;
  flex-direction: column;
}

.contact-item span {
  font-size: 13px;
  color: var(--text-muted);
}

.contact-item strong {
  font-size: 16px;
  font-weight: 600;
}

.service-cities {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.service-cities strong {
  color: var(--text-dark);
}

/* CTA */
.cta {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  text-align: center;
  padding: 80px 0;
}

.cta h2 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 12px;
}

.cta p {
  font-size: 18px;
  opacity: 0.9;
  margin-bottom: 32px;
}

/* 页脚 */
.footer {
  background: linear-gradient(180deg, var(--bg-dark) 0%, var(--theme-footer-end) 100%);
  color: rgba(255, 255, 255, 0.65);
  padding: 72px 0 28px;
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.08), transparent);
}

.footer-main {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: 60px;
  margin-bottom: 40px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: white;
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-logo svg {
  width: 36px;
  height: 36px;
}

.footer-logo img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: cover;
  display: block;
}

.footer-brand p {
  font-size: 14px;
  margin-bottom: 8px;
}

.footer-slogan {
  color: var(--accent-cyan);
  font-weight: 500;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.footer-col h4 {
  color: white;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  color: rgba(255, 255, 255, 0.65);
  text-decoration: none;
  font-size: 14px;
  margin-bottom: 10px;
  transition: color 0.3s;
}

.footer-col a:hover {
  color: white;
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

/* ===== 主题配色选择器 ===== */
.theme-switcher {
  position: fixed;
  left: 24px;
  bottom: 115px;
  z-index: 9998;
}
.theme-toggle {
  width: 46px; height: 46px;
  border-radius: 50%;
  border: 1.5px solid rgba(var(--theme-overlay-rgb), 0.3);
  background: rgba(var(--theme-overlay-rgb), 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: white;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.3s;
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  padding: 0;
}
.theme-toggle:hover {
  transform: scale(1.1);
  border-color: rgba(var(--theme-overlay-rgb), 0.5);
  box-shadow: 0 6px 24px rgba(0,0,0,0.25);
}
.theme-panel {
  position: absolute;
  left: 0; bottom: 56px;
  width: 340px;
  background: white;
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
  opacity: 0; pointer-events: none;
  transform: translateY(12px) scale(0.95);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}
.theme-switcher.active .theme-panel {
  opacity: 1; pointer-events: all;
  transform: translateY(0) scale(1);
}
.theme-panel-header {
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border);
}
.theme-panel-header h3 {
  font-size: 16px; font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 4px;
}
.theme-panel-header p {
  font-size: 12px; color: var(--text-muted);
  margin: 0;
}
.theme-options {
  padding: 12px;
}
.theme-option {
  display: flex; align-items: center; gap: 12px;
  width: 100%; padding: 12px 14px;
  border: 1.5px solid transparent;
  border-radius: 14px;
  background: white;
  cursor: pointer;
  transition: all 0.2s;
  text-align: left;
  font-family: inherit;
}
.theme-option:hover {
  background: var(--bg-light);
  border-color: var(--border-light);
}
.theme-option.active {
  background: rgba(0, 102, 255, 0.06);
  border-color: var(--primary);
}
.theme-swatch {
  display: flex; gap: 4px;
  flex-shrink: 0;
}
.theme-swatch span {
  width: 18px; height: 18px;
  border-radius: 6px;
  display: block;
  box-shadow: inset 0 1px 2px rgba(0,0,0,0.1);
}
.theme-name {
  font-size: 14px; font-weight: 600;
  color: var(--text-dark);
  white-space: nowrap;
}
.theme-desc {
  font-size: 12px; color: var(--text-muted);
  margin-left: auto;
  white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis;
  max-width: 120px;
}
@media (max-width: 768px) {
  .theme-switcher {
    left: 16px; bottom: 95px;
  }
  .theme-panel {
    width: calc(100vw - 32px);
    max-width: 340px;
  }
}

/* ===== 呼叫试用弹窗 ===== */
.call-trial-wrapper {
  background: white;
  border-radius: 20px;
  width: 100%;
  max-width: 440px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.2);
  transform: translateY(24px) scale(0.98);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.active .call-trial-wrapper {
  transform: translateY(0) scale(1);
}

.call-trial-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: rgba(0, 0, 0, 0.05);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all 0.2s;
  z-index: 10;
}

.call-trial-close:hover {
  background: rgba(0, 0, 0, 0.1);
  color: var(--text-dark);
}

.call-trial-step {
  padding: 48px 36px 36px;
}

.call-trial-header {
  text-align: center;
  margin-bottom: 28px;
}

.call-trial-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.1), rgba(0, 212, 170, 0.1));
  border-radius: 20px;
  color: var(--primary);
}

.call-trial-icon svg {
  width: 36px;
  height: 36px;
}

.call-trial-icon-success {
  background: linear-gradient(135deg, rgba(5, 150, 105, 0.1), rgba(0, 212, 170, 0.1));
  color: #059669;
}

.call-trial-header h2 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-dark);
}

.call-trial-header p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
}

.call-trial-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.call-trial-form .form-group {
  text-align: left;
}

.call-trial-form .form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 6px;
}

.call-trial-form input[type="tel"],
.call-trial-form input[type="text"] {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: 12px;
  font-size: 16px;
  font-family: inherit;
  transition: border-color 0.2s;
  background: var(--bg-light);
  box-sizing: border-box;
}

.call-trial-form input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

.call-trial-error {
  font-size: 12px;
  color: #e53e3e;
  display: block;
  margin-top: 4px;
  min-height: 16px;
}

.call-trial-submit {
  width: 100%;
  justify-content: center;
  padding: 14px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 12px;
  cursor: pointer;
}

/* 验证码行 */
.verify-code-row {
  display: flex;
  gap: 10px;
}

.verify-code-row input {
  flex: 1;
}

.verify-resend {
  flex-shrink: 0;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: 12px;
  background: var(--bg-light);
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
  font-family: inherit;
}

.verify-resend:not(:disabled):hover {
  border-color: var(--primary);
  color: var(--primary);
}

.verify-resend:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.verify-divider {
  height: 1px;
  background: var(--border);
  margin: 20px 0;
}

.verify-section .call-trial-submit {
  margin-top: 20px;
}

/* 隐私号卡片 */
.privacy-number-card {
  background: linear-gradient(135deg, #f8fafc 0%, #f0f7ff 100%);
  border: 1.5px solid rgba(0, 102, 255, 0.15);
  border-radius: 16px;
  padding: 28px 24px;
  text-align: center;
  margin-bottom: 16px;
}

.privacy-number-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 8px;
  font-weight: 500;
}

.privacy-number {
  font-size: 36px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.08em;
  margin-bottom: 12px;
  font-variant-numeric: tabular-nums;
  user-select: all;
  white-space: nowrap;
}

.privacy-number-tips {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  font-size: 12px;
  color: var(--text-muted);
}

.privacy-timer {
  color: #e53e3e;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.privacy-desc {
  color: var(--text-muted);
}

.call-dial-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 14px;
  font-size: 16px;
  font-weight: 700;
  border-radius: 12px;
  background: linear-gradient(135deg, #059669, #00d4aa);
  color: white;
  text-decoration: none;
  transition: all 0.2s;
  box-shadow: 0 4px 20px rgba(5, 150, 105, 0.3);
}

.call-dial-btn:hover {
  box-shadow: 0 6px 28px rgba(5, 150, 105, 0.45);
  transform: translateY(-1px);
}

.call-trial-footer-tip {
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 12px;
}

/* 响应式 */
@media (max-width: 1024px) {
  .hero-container {
    text-align: center;
    padding: 0 24px;
  }
  
  .hero-cta {
    justify-content: center;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .featured-row,
  .sub-product-row,
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .solution-features {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .cases-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .about-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: rgba(var(--theme-overlay-rgb), 0.98);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    transform: translateY(-150%);
    opacity: 0;
    transition: all 0.3s ease;
    pointer-events: none;
  }
  
  .nav.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  
  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }
  
  .hero {
    padding: 120px 0 80px;
  }
  
  .hero-title {
    font-size: 34px;
  }
  
  .hero-subtitle {
    font-size: 16px;
  }
  
  .section-title {
    font-size: 28px;
  }
  
  .featured-row,
  .sub-product-row,
  .product-grid,
  .hardware-grid,
  .solution-features,
  .cases-grid {
    grid-template-columns: 1fr;
  }

  .featured-card-inner {
    padding: 40px 32px 36px;
  }
  .featured-card h3 {
    font-size: 24px;
  }
  .featured-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
  }
  .fstat {
    padding: 12px 10px;
  }
  .fstat em {
    font-size: 18px;
  }
  
  .hardware-showcase {
    grid-template-columns: 1fr;
    padding: 28px;
    gap: 32px;
  }
  
  .hardware-showcase-text h3 {
    font-size: 24px;
  }
  
  .hardware-showcase-img {
    order: -1;
  }
  
  .solution-flow {
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }
  
  .flow-step {
    max-width: 100%;
    width: 100%;
  }
  
  .flow-arrow {
    width: 2px;
    height: 24px;
  }
  
  .flow-arrow::after {
    top: 0;
    left: 50%;
    right: auto;
    width: 2px;
    height: 100%;
    transform: translateX(-50%);
    background: linear-gradient(180deg, var(--primary), var(--accent-cyan));
  }
  
  .flow-arrow::before {
    top: auto;
    bottom: 0;
    left: 50%;
    right: auto;
    transform: translateX(-50%) rotate(135deg);
  }
  
  .footer-main,
  .footer-links {
    grid-template-columns: 1fr;
  }
  
  .about-highlights {
    gap: 20px;
  }
  
  .industry-detail-hero {
    padding: 120px 0 60px;
  }
  
  .industry-detail-header {
    flex-direction: column;
    text-align: center;
  }
  
  .industry-detail-header h1 {
    font-size: 30px;
  }
  
  .industry-detail-cta {
    justify-content: center;
  }
  
  .detail-grid {
    grid-template-columns: 1fr;
  }
  
  .detail-sidebar {
    position: static;
  }
  
  .cta-box {
    padding: 40px 24px;
  }
  
  .cta-box h2 {
    font-size: 24px;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 28px;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: 20px;
  }
  
  .btn-large {
    padding: 14px 24px;
    font-size: 15px;
  }
}

/* 行业详情页 */
.industry-detail-hero {
  background: linear-gradient(135deg, #0a1628 0%, #0d2847 100%);
  color: white;
  padding: 140px 0 80px;
  position: relative;
  overflow: hidden;
}

.industry-detail-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 102, 255, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-size: 14px;
  margin-bottom: 32px;
  transition: color 0.2s;
}

.back-link:hover {
  color: white;
}

.industry-detail-header {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 32px;
}

.industry-detail-icon {
  width: 88px;
  height: 88px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.industry-detail-icon svg {
  width: 44px;
  height: 44px;
}

.industry-detail-header h1 {
  font-size: 42px;
  font-weight: 900;
  margin-bottom: 8px;
}

.industry-detail-header p {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.7);
}

.industry-detail-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.industry-detail-body {
  background: var(--bg-light);
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 40px;
  align-items: start;
}

.detail-block {
  background: white;
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 24px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}

.detail-block h2 {
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.detail-block h2 span {
  width: 4px;
  height: 22px;
  background: var(--primary);
  border-radius: 2px;
}

.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.detail-tags span {
  padding: 8px 16px;
  background: rgba(0, 102, 255, 0.06);
  color: var(--primary);
  border-radius: 100px;
  font-size: 14px;
  font-weight: 500;
}

.detail-tags.service-tags span {
  background: rgba(0, 212, 170, 0.08);
  color: #059669;
}

.script-timeline {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.script-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.script-item.ai {
  flex-direction: row;
}

.script-item.customer {
  flex-direction: row-reverse;
  text-align: right;
}

.script-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

.script-item.ai .script-avatar {
  background: var(--primary);
  color: white;
}

.script-item.customer .script-avatar {
  background: var(--bg-light);
  color: var(--text-dark);
  border: 1px solid var(--border);
}

.script-bubble {
  max-width: 80%;
  padding: 16px 20px;
  border-radius: 16px;
  font-size: 15px;
  line-height: 1.7;
}

.script-item.ai .script-bubble {
  background: rgba(0, 102, 255, 0.06);
  color: var(--text-dark);
  border-bottom-left-radius: 4px;
}

.script-item.customer .script-bubble {
  background: var(--bg-light);
  color: var(--text-dark);
  border-bottom-right-radius: 4px;
}

.detail-cases {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.detail-cases span {
  padding: 8px 16px;
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 14px;
  color: var(--text-dark);
}

.detail-sidebar {
  position: sticky;
  top: 100px;
}

.sidebar-card {
  background: white;
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}

.sidebar-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
}

.sidebar-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

.related-industries {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.related-item {
  padding: 6px 12px;
  background: var(--bg-light);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 13px;
  color: var(--text-dark);
  text-decoration: none;
  transition: all 0.2s;
}

.related-item:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

/* 底部 CTA */
.cta-section {
  background: linear-gradient(180deg, var(--bg-light) 0%, white 100%);
}

.cta-box {
  background: linear-gradient(135deg, var(--primary) 0%, #0052cc 100%);
  border-radius: var(--radius);
  padding: 64px;
  text-align: center;
  color: white;
}

.cta-box h2 {
  font-size: 32px;
  font-weight: 800;
  margin-bottom: 12px;
}

.cta-box p {
  font-size: 16px;
  opacity: 0.9;
  margin-bottom: 28px;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== 首页热门行业场景网格 ===== */
.home-industry-section {
  padding: 0 0 72px 0;
}

.home-industry-header {
  text-align: center;
  margin-bottom: 32px;
}

.home-industry-badge {
  display: inline-block;
  padding: 5px 16px;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #004DC0);
  border-radius: 20px;
  margin-bottom: 14px;
  letter-spacing: 0.4px;
  box-shadow: 0 2px 12px rgba(0,102,255,.2);
}

.home-industry-header h3 {
  font-size: 26px;
  font-weight: 800;
  color: var(--text);
  margin: 0 0 8px 0;
  letter-spacing: -0.3px;
}

.home-industry-header p {
  font-size: 15px;
  color: var(--text-secondary);
  margin: 0;
}

.home-industry-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  max-width: 1200px;
  margin: 0 auto;
}

.home-industry-card {
  background: #fff;
  border-radius: 16px;
  padding: 24px 18px 20px;
  box-shadow: 0 1px 2px rgba(0,0,0,.03), 0 4px 12px rgba(0,0,0,.04);
  border: 1px solid rgba(0,0,0,.06);
  transition: all 0.35s cubic-bezier(.22,.61,.36,1);
  text-align: center;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.home-industry-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 36px rgba(0,0,0,.08), 0 0 0 1px rgba(0,102,255,.12);
  border-color: rgba(0,102,255,.18);
}

.home-industry-icon {
  width: 54px; height: 54px;
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  transition: transform 0.35s;
  flex-shrink: 0;
}

.home-industry-icon svg {
  width: 28px; height: 28px;
}

.home-industry-card:hover .home-industry-icon {
  transform: scale(1.08);
}

.home-industry-card h4 {
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 6px 0;
  color: #0F172A;
  transition: color 0.3s;
}

.home-industry-card:hover h4 {
  color: var(--primary);
}

.home-industry-tags {
  font-size: 11.5px;
  color: #94A3B8;
  margin-bottom: 14px;
  line-height: 1.5;
  flex: 1;
}

.home-industry-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  padding: 10px 0;
  border-radius: 10px;
  font-size: 13.5px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  transition: all 0.3s;
  letter-spacing: 0.2px;
  background: linear-gradient(135deg, var(--primary), #3388FF);
  color: #fff;
  box-shadow: 0 2px 10px rgba(0,102,255,.2);
  margin-top: auto;
}

.home-industry-card:hover .home-industry-cta {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0,102,255,.3);
  background: linear-gradient(135deg, #0052CC, #2979FF);
}

.home-industry-cta svg {
  width: 15px; height: 15px;
  flex-shrink: 0;
}

/* 响应式 */
@media (max-width: 1100px) {
  .home-industry-grid {
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
  }
  .home-industry-card {
    padding: 20px 12px 16px;
  }
  .home-industry-card h4 {
    font-size: 14px;
  }
  .home-industry-tags {
    font-size: 11px;
  }
}

@media (max-width: 900px) {
  .home-industry-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
  }
  .home-industry-card {
    padding: 22px 16px 18px;
  }
}

@media (max-width: 640px) {
  .home-industry-section {
    padding-bottom: 48px;
  }
  .home-industry-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .home-industry-header h3 {
    font-size: 21px;
  }
  .home-industry-card {
    padding: 18px 10px 14px;
  }
  .home-industry-card h4 {
    font-size: 14px;
  }
  .home-industry-tags {
    font-size: 10.5px;
  }
  .home-industry-cta {
    font-size: 12.5px;
    padding: 8px 0;
  }
}

/* ===== 智能语音硬件 — 四款产品网格 ===== */
.home-hardware-section {
  padding: 0 0 80px;
  max-width: 1200px;
  margin: 0 auto;
}

.home-hardware-header {
  text-align: center;
  margin-bottom: 36px;
}

.home-hardware-badge {
  display: inline-block;
  padding: 5px 16px;
  font-size: 13px;
  font-weight: 650;
  color: #059669;
  background: linear-gradient(135deg, rgba(5,150,105,.08), rgba(16,185,129,.06));
  border: 1px solid rgba(5,150,105,.15);
  border-radius: 100px;
  margin-bottom: 14px;
  letter-spacing: 0.3px;
}

.home-hardware-header h3 {
  font-size: 26px;
  font-weight: 750;
  color: var(--text);
  margin: 0 0 8px 0;
  letter-spacing: -0.3px;
}

.home-hardware-header p {
  font-size: 14.5px;
  color: var(--text-secondary);
  margin: 0;
}

/* 4列网格 */
.home-hardware-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  padding: 0 var(--container-pad, 20px);
}

.home-hardware-card {
  position: relative;
  background: #fff;
  border: 1.5px solid var(--border, #E2E8F0);
  border-radius: 16px;
  padding: 28px 20px 22px;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
  overflow: hidden;
}

.home-hardware-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 16px;
  opacity: 0;
  transition: opacity 0.35s;
  pointer-events: none;
  box-shadow: inset 0 0 0 2px rgba(5,150,105,.25);
}

.home-hardware-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 32px rgba(5,150,105,.1), 0 2px 8px rgba(0,0,0,.04);
  border-color: rgba(5,150,105,.25);
}

.home-hardware-card:hover::before {
  opacity: 1;
}

/* 图标 */
.home-hardware-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  transition: transform 0.35s ease, box-shadow 0.35s ease;
  flex-shrink: 0;
}

.home-hardware-icon svg {
  width: 32px;
  height: 32px;
}

.home-hardware-card:hover .home-hardware-icon {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(5,150,105,.12);
}

/* 产品名 */
.home-hardware-card h4 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 6px 0;
  letter-spacing: -0.2px;
  transition: color 0.3s;
}

.home-hardware-card:hover h4 {
  color: #059669;
}

/* 一句话描述 */
.home-hardware-card > p {
  font-size: 13.5px;
  color: var(--text-muted);
  margin: 0 0 14px 0;
  line-height: 1.55;
  max-width: 220px;
}

/* 标签 */
.home-hardware-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin-bottom: 16px;
}

.home-hardware-tags span {
  padding: 3px 10px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 6px;
  background: rgba(5,150,105,.06);
  color: #047857;
  white-space: nowrap;
}

/* CTA 按钮 */
.home-hardware-cta {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 8px 20px;
  font-size: 13.5px;
  font-weight: 650;
  color: #059669;
  background: rgba(5,150,105,.06);
  border: 1.5px solid rgba(5,150,105,.15);
  border-radius: 10px;
  transition: all 0.3s;
  margin-top: auto;
}

.home-hardware-cta svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  transition: transform 0.3s;
}

.home-hardware-card:hover .home-hardware-cta {
  background: linear-gradient(135deg, #059669, #047857);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(5,150,105,.25);
}

.home-hardware-card:hover .home-hardware-cta svg {
  transform: translateX(3px);
}

/* 响应式 */
@media (max-width: 900px) {
  .home-hardware-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .home-hardware-header h3 {
    font-size: 22px;
  }
}

@media (max-width: 640px) {
  .home-hardware-section {
    padding-bottom: 48px;
  }
  .home-hardware-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .home-hardware-card {
    padding: 22px 14px 18px;
  }
  .home-hardware-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
  }
  .home-hardware-icon svg {
    width: 26px;
    height: 26px;
  }
  .home-hardware-card h4 {
    font-size: 15px;
  }
  .home-hardware-card > p {
    font-size: 12.5px;
  }
  .home-hardware-tags span {
    font-size: 11px;
    padding: 2px 8px;
  }
  .home-hardware-cta {
    font-size: 12.5px;
    padding: 7px 16px;
  }
}

/* 快速咨询悬浮按钮 */
.quick-contact {
  position: fixed;
  right: 34px;
  bottom: 115px;
  z-index: 9999;
}

.quick-contact-btn {
  width: 76px;
  height: 76px;
  min-width: 76px;
  min-height: 76px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent-cyan) 100%);
  color: white;
  cursor: pointer;
  display: -webkit-box;
  display: -webkit-flex;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -webkit-flex-direction: column;
  flex-direction: column;
  -webkit-box-align: center;
  -webkit-align-items: center;
  align-items: center;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  justify-content: center;
  gap: 5px;
  box-shadow: 0 8px 30px rgba(0, 102, 255, 0.35);
  -webkit-transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  padding: 0;
  box-sizing: border-box;
  -webkit-appearance: none;
  appearance: none;
  outline: none;
}

.quick-contact-btn:hover {
  -webkit-transform: scale(1.08);
  transform: scale(1.08);
  box-shadow: 0 12px 40px rgba(0, 102, 255, 0.45);
}

.quick-contact-btn.active {
  background: linear-gradient(135deg, #ef4444 0%, #f97316 100%);
}

.quick-contact-icon {
  display: -webkit-box;
  display: -webkit-flex;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
  align-items: center;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  -webkit-flex-shrink: 0;
  flex-shrink: 0;
}

.quick-contact-icon svg {
  width: 100%;
  height: 100%;
  display: block;
}

.quick-contact-icon.close {
  display: none;
}

.quick-contact-btn.active .quick-contact-icon.open {
  display: none;
}

.quick-contact-btn.active .quick-contact-icon.close {
  display: -webkit-box;
  display: -webkit-flex;
  display: flex;
}

.quick-contact-text {
  font-size: 12px;
  font-weight: 600;
  line-height: 1.2;
  white-space: nowrap;
  word-break: keep-all;
  -webkit-writing-mode: horizontal-tb;
  -ms-writing-mode: lr-tb;
  writing-mode: horizontal-tb;
  text-align: center;
  letter-spacing: 0;
}

.quick-contact-panel {
  position: absolute;
  right: 0;
  bottom: 80px;
  width: 380px;
  max-height: calc(100vh - 120px);
  background: white;
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px) scale(0.95);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.quick-contact.active .quick-contact-panel {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0) scale(1);
}

.quick-contact-header {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent-cyan) 100%);
  color: white;
  padding: 20px 24px;
}

.quick-contact-header strong {
  display: block;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
}

.quick-contact-header span {
  font-size: 13px;
  opacity: 0.9;
}

.quick-contact-body {
  padding: 24px;
  overflow-y: auto;
  max-height: calc(100vh - 200px);
}

.quick-contact-tel {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px;
  background: var(--bg-light);
  border-radius: 14px;
  color: var(--primary);
  text-decoration: none;
  margin-bottom: 20px;
  transition: all 0.2s;
  border: 1px solid var(--border);
}

.quick-contact-tel:hover {
  background: rgba(0, 102, 255, 0.06);
  border-color: var(--primary-light);
  transform: translateY(-2px);
}

.quick-contact-tel svg {
  flex-shrink: 0;
}

.quick-contact-tel div {
  display: flex;
  flex-direction: column;
}

.quick-contact-tel span {
  font-size: 13px;
  color: var(--text-muted);
}

.quick-contact-tel strong {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-dark);
}

.quick-contact-qr {
  text-align: center;
}

.quick-contact-qr img {
  width: 180px;
  height: 180px;
  border-radius: 12px;
  border: 1px solid var(--border);
  object-fit: contain;
  margin-bottom: 12px;
}

.quick-contact-qr p {
  font-size: 13px;
  color: var(--text-muted);
  margin: 0;
}

/* 销售顾问二维码 — 可折叠 */
.quick-contact-sales-toggle {
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px dashed var(--border);
  cursor: pointer;
  -webkit-user-select: none;
  user-select: none;
  transition: background 0.2s;
  border-radius: 10px;
  margin-left: -8px;
  margin-right: -8px;
  padding-left: 8px;
  padding-right: 8px;
}
.quick-contact-sales-toggle:hover {
  background: rgba(0,102,255,.04);
}

.quick-contact-sales-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 650;
  color: var(--text-secondary);
  letter-spacing: 0.3px;
  transition: color 0.2s;
}
.quick-contact-sales-toggle:hover .quick-contact-sales-trigger {
  color: var(--primary);
}

.sales-toggle-arrow {
  margin-left: auto;
  transition: transform 0.3s ease;
}
.quick-contact-sales-toggle.expanded .sales-toggle-arrow {
  transform: rotate(180deg);
}

.quick-contact-sales {
  display: none;
  margin-top: 16px;
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
  opacity: 0;
}
.quick-contact-sales.expanded {
  display: block;
  max-height: 500px;
  opacity: 1;
}

.quick-contact-sales-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.quick-contact-sales-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 10px 8px;
  background: var(--bg-light);
  border-radius: 14px;
  border: 1px solid var(--border);
  transition: all 0.25s ease;
}

.quick-contact-sales-item:hover {
  transform: translateY(-3px);
  border-color: var(--primary-light);
  background: rgba(0, 102, 255, 0.04);
  box-shadow: 0 6px 18px rgba(0, 102, 255, 0.08);
}

.quick-contact-sales-item img {
  width: 100%;
  max-width: 130px;
  aspect-ratio: 1 / 1;
  border-radius: 10px;
  border: 1px solid var(--border);
  object-fit: contain;
  background: white;
}

.quick-contact-sales-item .sales-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-dark);
  line-height: 1.2;
}

.quick-contact-sales-item .sales-region {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(0, 102, 255, 0.08);
  padding: 2px 10px;
  border-radius: 20px;
  line-height: 1.3;
}

@media (max-width: 768px) {
  .quick-contact {
    right: 26px;
    bottom: 95px;
  }

  .quick-contact-btn {
    width: 64px;
    height: 64px;
    min-width: 64px;
    min-height: 64px;
  }

  .quick-contact-text {
    font-size: 11px;
  }

  .quick-contact-panel {
    width: calc(100vw - 32px);
    max-width: 360px;
    right: 0;
  }

  .quick-contact-body {
    padding: 20px;
    max-height: calc(100vh - 180px);
  }

  .quick-contact-sales-item img {
    max-width: 118px;
  }
}

/* 定制专属行业表单弹窗 */
#customFormModal {
  z-index: 10000;
}

#customFormModal.active {
  opacity: 1;
  pointer-events: all;
}

.custom-form-wrapper {
  background: white;
  border-radius: 24px;
  max-width: 640px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.3);
  transform: translateY(20px) scale(0.96);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.custom-form-close {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 10;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: rgba(0, 0, 0, 0.04);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: all 0.2s;
}

.custom-form-close:hover {
  background: rgba(0, 0, 0, 0.08);
  color: var(--text-dark);
}

#customFormModal.active .custom-form-wrapper {
  transform: translateY(0) scale(1);
}

.custom-form-header {
  background: var(--bg-light);
  border-bottom: 1px solid var(--border-light);
  padding: 48px 40px 32px;
  text-align: center;
  color: var(--text-dark);
  position: relative;
  overflow: hidden;
}

.custom-form-header::after {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(0, 102, 255, 0.06) 0%, transparent 70%);
  pointer-events: none;
  border-radius: 50%;
}

.custom-form-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: rgba(0, 102, 255, 0.06);
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

.custom-form-header h2 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text-dark);
}

.custom-form-header p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  max-width: 440px;
  margin: 0 auto;
}

.custom-form {
  padding: 40px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-dark);
}

.required {
  color: #ef4444;
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 14px 16px;
  border: 1.5px solid var(--border);
  border-radius: 12px;
  font-size: 15px;
  font-family: inherit;
  transition: all 0.2s;
  background: var(--bg-light);
  color: var(--text-dark);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary-light);
  background: white;
  box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.08);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #9CA3AF;
}

.form-group select {
  padding-right: 36px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.form-submit {
  width: 100%;
  justify-content: center;
  gap: 8px;
  padding: 16px 24px;
  font-size: 16px;
  font-weight: 700;
  margin-top: 8px;
  border-radius: 14px;
}

.form-tip {
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  margin: 16px 0 0;
}

.form-tip a {
  color: var(--primary);
  text-decoration: underline;
}

/* 表单成功状态 */
.custom-form-success {
  padding: 60px 40px;
  text-align: center;
}

.success-icon {
  margin-bottom: 20px;
}

.custom-form-success h3 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--text-dark);
}

.custom-form-success p {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 8px;
  line-height: 1.6;
}

.custom-form-success .btn {
  margin-top: 24px;
  min-width: 160px;
}

@media (max-width: 768px) {
  .custom-form-wrapper {
    border-radius: 20px 20px 0 0;
    max-height: 85vh;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    transform: translateY(100%);
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  }

  #customFormModal.active .custom-form-wrapper {
    transform: translateY(0);
  }

  .custom-form-header {
    padding: 40px 24px 24px;
  }

  .custom-form-header h2 {
    font-size: 20px;
  }

  .custom-form {
    padding: 24px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 16px;
    margin-bottom: 16px;
  }
}