/* ============ 基础样式 ============ */
* {
   margin: 0;
   padding: 0;
   box-sizing: border-box;
}
:root {
   --primary: #2563eb;
   --primary-dark: #1d4ed8;
   --primary-light: #3b82f6;
   --secondary: #10b981;
   --secondary-dark: #059669;
   --accent-orange: #f59e0b;
   --accent-purple: #8b5cf6;
   --accent-red: #ef4444;
   --text-dark: #1e293b;
   --text-normal: #334155;
   --text-muted: #64748b;
   --text-light: #94a3b8;
   --bg-light: #f8fafc;
   --bg-gray: #f1f5f9;
   --bg-white: #ffffff;
   --border: #e2e8f0;
   --border-light: #f1f5f9;
   --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
   --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
   --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
   --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
   --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
   --gradient-primary: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
   --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
   --gradient-green: linear-gradient(135deg, #10b981 0%, #059669 100%);
   --gradient-blue: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
   --radius-sm: 6px;
   --radius: 10px;
   --radius-md: 14px;
   --radius-lg: 20px;
   --transition: all 0.3s ease;
}
html {
   scroll-behavior: smooth;
}
body {
   font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
   line-height: 1.6;
   color: var(--text-normal);
   background: var(--bg-white);
   overflow-x: hidden;
   -webkit-font-smoothing: antialiased;
   -moz-osx-font-smoothing: grayscale;
}
a {
   text-decoration: none;
   color: inherit;
   transition: var(--transition);
}
ul {
   list-style: none;
}
.section-container {
   max-width: 1200px;
   margin: 0 auto;
   padding: 0 24px;
}
.section-header {
   text-align: center;
   margin-bottom: 64px;
}
.section-badge {
   display: inline-block;
   padding: 6px 16px;
   background: rgba(37, 99, 235, 0.1);
   color: var(--primary);
   border-radius: 20px;
   font-size: 13px;
   font-weight: 600;
   margin-bottom: 16px;
   letter-spacing: 0.5px;
}
.section-title {
   font-size: 36px;
   font-weight: 800;
   color: var(--text-dark);
   margin-bottom: 16px;
   line-height: 1.3;
}
.section-desc {
   font-size: 17px;
   color: var(--text-muted);
   max-width: 640px;
   margin: 0 auto;
   line-height: 1.8;
}
/* ============ 按钮 ============ */
.btn {
   display: inline-flex;
   align-items: center;
   justify-content: center;
   gap: 8px;
   padding: 12px 24px;
   border: none;
   border-radius: var(--radius);
   font-size: 15px;
   font-weight: 600;
   cursor: pointer;
   transition: var(--transition);
   white-space: nowrap;
   text-align: center;
   user-select: none;
}
.btn:hover {
   transform: translateY(-2px);
}
.btn:active {
   transform: translateY(0);
}
.btn-small {
   padding: 8px 18px;
   font-size: 14px;
   height: 36px;
}
.btn-large {
   padding: 16px 32px;
   font-size: 16px;
   height: 54px;
}
.btn-block {
   width: 100%;
}
.btn-primary {
   background: var(--gradient-primary);
   color: white;
   box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4);
}
.btn-primary:hover {
   background: var(--primary-dark);
   box-shadow: 0 6px 20px rgba(37, 99, 235, 0.5);
}
.btn-outline {
   background: transparent;
   color: var(--primary);
   border: 2px solid var(--primary);
   padding: 14px 30px;
}
.btn-outline:hover {
   background: var(--primary);
   color: white;
}
.btn-white {
   background: white;
   color: var(--primary);
   box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
}
.btn-white:hover {
   background: #f8fafc;
   box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}
.btn-arrow {
   transition: var(--transition);
   font-weight: bold;
}
.btn:hover .btn-arrow {
   transform: translateX(4px);
}
/* ============ 导航栏 ============ */
.navbar {
   position: fixed;
   top: 0;
   left: 0;
   right: 0;
   z-index: 1000;
   background: rgba(255, 255, 255, 0.9);
   backdrop-filter: blur(12px);
   -webkit-backdrop-filter: blur(12px);
   border-bottom: 1px solid transparent;
   transition: var(--transition);
}
.navbar.scrolled {
   background: rgba(255, 255, 255, 0.98);
   border-bottom-color: var(--border);
   box-shadow: var(--shadow-sm);
}
.nav-container {
   max-width: 1200px;
   margin: 0 auto;
   padding: 0 24px;
   height: 68px;
   display: flex;
   align-items: center;
   justify-content: space-between;
}
.nav-logo {
   display: flex;
   align-items: center;
   gap: 10px;
   font-weight: 800;
   font-size: 18px;
   color: var(--text-dark);
}
.logo-icon {
   font-size: 26px;
}
.logo-text {
   background: var(--gradient-hero);
   -webkit-background-clip: text;
   -webkit-text-fill-color: transparent;
   background-clip: text;
}
.nav-menu {
   display: flex;
   gap: 36px;
}
.nav-menu a {
   color: var(--text-normal);
   font-size: 15px;
   font-weight: 500;
   position: relative;
}
.nav-menu a::after {
   content: '';
   position: absolute;
   bottom: -4px;
   left: 0;
   width: 0;
   height: 2px;
   background: var(--primary);
   transition: var(--transition);
}
.nav-menu a:hover {
   color: var(--primary);
}
.nav-menu a:hover::after {
   width: 100%;
}
.nav-actions {
   display: flex;
   gap: 12px;
}
.hamburger {
   display: none;
   flex-direction: column;
   gap: 5px;
   background: none;
   border: none;
   cursor: pointer;
   padding: 4px;
}
.hamburger span {
   display: block;
   width: 24px;
   height: 2px;
   background: var(--text-dark);
   border-radius: 2px;
   transition: var(--transition);
}
.hamburger.active span:nth-child(1) {
   transform: translateY(7px) rotate(45deg);
}
.hamburger.active span:nth-child(2) {
   opacity: 0;
}
.hamburger.active span:nth-child(3) {
   transform: translateY(-7px) rotate(-45deg);
}
/* ============ Hero 区域 ============ */
.hero {
   position: relative;
   padding: 140px 0 100px;
   overflow: hidden;
   background: linear-gradient(180deg, #eef2ff 0%, #f0f9ff 50%, #ffffff 100%);
}
.hero-bg {
   position: absolute;
   top: 0;
   left: 0;
   right: 0;
   bottom: 0;
   pointer-events: none;
   overflow: hidden;
}
.hero-shape {
   position: absolute;
   border-radius: 50%;
   filter: blur(80px);
   opacity: 0.5;
}
.shape-1 {
   width: 500px;
   height: 500px;
   background: #c7d2fe;
   top: -200px;
   right: -100px;
   animation: float 8s ease-in-out infinite;
}
.shape-2 {
   width: 400px;
   height: 400px;
   background: #a5f3fc;
   bottom: -150px;
   left: -100px;
   animation: float 10s ease-in-out infinite 2s;
}
.shape-3 {
   width: 300px;
   height: 300px;
   background: #d9f99d;
   top: 40%;
   left: 50%;
   animation: float 12s ease-in-out infinite 1s;
}
@keyframes float {
   0%, 100% { transform: translate(0, 0) scale(1); }
   50% { transform: translate(30px, -30px) scale(1.05); }
}
.hero-container {
   max-width: 1200px;
   margin: 0 auto;
   padding: 0 24px;
   display: grid;
   grid-template-columns: 1fr 1fr;
   gap: 64px;
   align-items: center;
   position: relative;
   z-index: 1;
}
.hero-content {
   animation: fadeInUp 0.8s ease;
}
@keyframes fadeInUp {
   from {
       opacity: 0;
       transform: translateY(30px);
   }
   to {
       opacity: 1;
       transform: translateY(0);
   }
}
.hero-badge {
   display: inline-flex;
   align-items: center;
   gap: 8px;
   padding: 8px 18px;
   background: rgba(37, 99, 235, 0.1);
   border: 1px solid rgba(37, 99, 235, 0.2);
   color: var(--primary);
   border-radius: 30px;
   font-size: 13px;
   font-weight: 600;
   margin-bottom: 24px;
}
.badge-dot {
   width: 8px;
   height: 8px;
   background: var(--secondary);
   border-radius: 50%;
   animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
   0%, 100% { opacity: 1; transform: scale(1); }
   50% { opacity: 0.6; transform: scale(1.2); }
}
.hero-title {
   font-size: 52px;
   font-weight: 900;
   line-height: 1.15;
   color: var(--text-dark);
   margin-bottom: 24px;
   letter-spacing: -1px;
}
.hero-highlight {
   display: block;
   margin-top: 8px;
   background: var(--gradient-hero);
   -webkit-background-clip: text;
   -webkit-text-fill-color: transparent;
   background-clip: text;
}
.hero-subtitle {
   font-size: 17px;
   line-height: 1.9;
   color: var(--text-muted);
   margin-bottom: 36px;
   max-width: 560px;
}
.hero-actions {
   display: flex;
   gap: 16px;
   margin-bottom: 56px;
   flex-wrap: wrap;
}
.hero-stats {
   display: flex;
   align-items: center;
   gap: 32px;
   padding-top: 32px;
   border-top: 1px solid var(--border-light);
   max-width: 560px;
}
.stat-item {
   flex: 1;
   min-width: 0;
}
.stat-number {
   font-size: 32px;
   font-weight: 900;
   color: var(--text-dark);
   line-height: 1;
   margin-bottom: 6px;
}
.stat-unit {
   font-size: 16px;
   font-weight: 700;
   color: var(--primary);
   margin-left: 2px;
}
.stat-label {
   font-size: 13px;
   color: var(--text-muted);
   font-weight: 500;
}
.stat-divider {
   width: 1px;
   height: 48px;
   background: var(--border);
   flex-shrink: 0;
}
/* Hero 视觉卡片 */
.hero-visual {
   animation: fadeInRight 0.8s ease 0.2s backwards;
}
@keyframes fadeInRight {
   from {
       opacity: 0;
       transform: translateX(40px);
   }
   to {
       opacity: 1;
       transform: translateX(0);
   }
}
.hero-card {
   background: white;
   border-radius: var(--radius-lg);
   box-shadow: var(--shadow-xl);
   overflow: hidden;
   border: 1px solid var(--border-light);
}
.card-header {
   display: flex;
   align-items: center;
   padding: 16px 20px;
   background: #f8fafc;
   border-bottom: 1px solid var(--border-light);
   gap: 12px;
}
.card-dots {
   display: flex;
   gap: 6px;
}
.dot {
   width: 12px;
   height: 12px;
   border-radius: 50%;
}
.dot.red { background: #ef4444; }
.dot.yellow { background: #f59e0b; }
.dot.green { background: #10b981; }
.card-title {
   font-size: 14px;
   font-weight: 600;
   color: var(--text-dark);
   margin-left: 8px;
}
.card-toolbar {
   padding: 14px 18px;
   display: flex;
   gap: 8px;
   align-items: center;
   flex-wrap: wrap;
   border-bottom: 1px solid var(--border-light);
}
.tool-input {
   flex: 1;
   min-width: 120px;
   padding: 8px 14px;
   background: #f1f5f9;
   border: 1px solid var(--border);
   border-radius: var(--radius-sm);
   font-size: 13px;
   color: var(--text-muted);
}
.tool-stat {
   padding: 8px 12px;
   border-radius: var(--radius-sm);
   color: white;
   font-size: 12px;
   font-weight: 700;
   white-space: nowrap;
}
.tool-stat.blue { background: #3b82f6; }
.tool-stat.green { background: #10b981; }
.tool-stat.orange { background: #f59e0b; }
.card-grid {
   display: grid;
   grid-template-columns: repeat(10, 1fr);
   gap: 6px;
   padding: 20px;
}
.card-grid-item {
   aspect-ratio: 1;
   background: #e2e8f0;
   border-radius: 6px;
   display: flex;
   align-items: center;
   justify-content: center;
   font-size: 11px;
   font-weight: 700;
   color: #64748b;
   transition: var(--transition);
   animation: gridPop 0.3s ease backwards;
}
@keyframes gridPop {
   from {
       opacity: 0;
       transform: scale(0.8);
   }
   to {
       opacity: 1;
       transform: scale(1);
   }
}
.card-grid-item.done {
   background: var(--secondary);
   color: white;
   box-shadow: 0 2px 6px rgba(16, 185, 129, 0.4);
}
.card-grid-item.scanning {
   background: var(--accent-orange);
   color: white;
   animation: scanPulse 0.8s ease infinite;
}
@keyframes scanPulse {
   0%, 100% { box-shadow: 0 0 0 0 rgba(245, 158, 11, 0.6); }
   50% { box-shadow: 0 0 0 8px rgba(245, 158, 11, 0); }
}
/* ============ 核心功能 ============ */
.features {
   padding: 100px 0;
   background: var(--bg-white);
}
.features-grid {
   display: grid;
   grid-template-columns: repeat(3, 1fr);
   gap: 28px;
}
.feature-card {
   background: var(--bg-white);
   border: 1px solid var(--border);
   border-radius: var(--radius-md);
   padding: 32px;
   transition: var(--transition);
   position: relative;
   overflow: hidden;
}
.feature-card::before {
   content: '';
   position: absolute;
   top: 0;
   left: 0;
   right: 0;
   height: 4px;
   background: var(--gradient-primary);
   opacity: 0;
   transition: var(--transition);
}
.feature-1::before { background: linear-gradient(90deg, #3b82f6, #2563eb); }
.feature-2::before { background: linear-gradient(90deg, #10b981, #059669); }
.feature-3::before { background: linear-gradient(90deg, #f59e0b, #d97706); }
.feature-4::before { background: linear-gradient(90deg, #8b5cf6, #7c3aed); }
.feature-5::before { background: linear-gradient(90deg, #ec4899, #db2777); }
.feature-6::before { background: linear-gradient(90deg, #06b6d4, #0891b2); }
.feature-card:hover {
   transform: translateY(-8px);
   box-shadow: var(--shadow-lg);
   border-color: transparent;
}
.feature-card:hover::before {
   opacity: 1;
}
.feature-icon {
   width: 60px;
   height: 60px;
   border-radius: var(--radius);
   display: flex;
   align-items: center;
   justify-content: center;
   margin-bottom: 24px;
   transition: var(--transition);
}
.feature-icon svg {
   width: 28px;
   height: 28px;
}
.feature-1 .feature-icon { background: rgba(59, 130, 246, 0.1); color: #3b82f6; }
.feature-2 .feature-icon { background: rgba(16, 185, 129, 0.1); color: #10b981; }
.feature-3 .feature-icon { background: rgba(245, 158, 11, 0.1); color: #f59e0b; }
.feature-4 .feature-icon { background: rgba(139, 92, 246, 0.1); color: #8b5cf6; }
.feature-5 .feature-icon { background: rgba(236, 72, 153, 0.1); color: #ec4899; }
.feature-6 .feature-icon { background: rgba(6, 182, 212, 0.1); color: #06b6d4; }
.feature-card:hover .feature-icon {
   transform: scale(1.1) rotate(-4deg);
}
.feature-title {
   font-size: 20px;
   font-weight: 700;
   color: var(--text-dark);
   margin-bottom: 12px;
}
.feature-desc {
   font-size: 14px;
   line-height: 1.8;
   color: var(--text-muted);
   margin-bottom: 18px;
}
.feature-list {
   display: flex;
   flex-direction: column;
   gap: 8px;
}
.feature-list li {
   font-size: 13px;
   color: var(--text-normal);
   font-weight: 500;
}
/* ============ 使用流程 ============ */
.flow {
   padding: 100px 0;
   background: var(--bg-light);
}
.flow-steps {
   display: flex;
   align-items: stretch;
   justify-content: center;
   gap: 0;
}
.flow-step {
   flex: 1;
   max-width: 340px;
   background: var(--bg-white);
   border-radius: var(--radius-md);
   padding: 40px 32px;
   text-align: center;
   box-shadow: var(--shadow);
   position: relative;
   transition: var(--transition);
}
.flow-step:hover {
   transform: translateY(-6px);
   box-shadow: var(--shadow-lg);
}
.step-number {
   font-size: 56px;
   font-weight: 900;
   line-height: 1;
   background: var(--gradient-hero);
   -webkit-background-clip: text;
   -webkit-text-fill-color: transparent;
   background-clip: text;
   opacity: 0.15;
   margin-bottom: 8px;
}
.step-icon-wrap {
   margin-bottom: 20px;
   display: flex;
   justify-content: center;
}
.step-icon {
   width: 80px;
   height: 80px;
   border-radius: 50%;
   display: flex;
   align-items: center;
   justify-content: center;
   color: white;
   box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}
.step-icon svg {
   width: 36px;
   height: 36px;
}
.step-icon-1 { background: linear-gradient(135deg, #3b82f6, #2563eb); }
.step-icon-2 { background: linear-gradient(135deg, #10b981, #059669); }
.step-icon-3 { background: linear-gradient(135deg, #f59e0b, #d97706); }
.step-title {
   font-size: 22px;
   font-weight: 700;
   color: var(--text-dark);
   margin-bottom: 12px;
}
.step-desc {
   font-size: 14px;
   line-height: 1.8;
   color: var(--text-muted);
}
.flow-arrow {
   width: 50px;
   display: flex;
   align-items: center;
   justify-content: center;
   flex-shrink: 0;
   align-self: center;
}
.flow-arrow svg {
   width: 32px;
   height: 32px;
   color: var(--primary);
   opacity: 0.4;
}
/* ============ 产品优势 ============ */
.advantages {
   padding: 100px 0;
   background: var(--bg-white);
}
.advantages-grid {
   display: grid;
   grid-template-columns: repeat(3, 1fr);
   gap: 24px;
}
.adv-card {
   padding: 36px 32px;
   background: var(--bg-light);
   border-radius: var(--radius-md);
   border-left: 4px solid var(--primary);
   transition: var(--transition);
   position: relative;
}
.adv-card:hover {
   background: var(--bg-white);
   box-shadow: var(--shadow-md);
   transform: translateX(6px);
}
.adv-number {
   position: absolute;
   top: 20px;
   right: 24px;
   font-size: 48px;
   font-weight: 900;
   color: var(--border);
   line-height: 1;
   transition: var(--transition);
}
.adv-card:hover .adv-number {
   color: rgba(37, 99, 235, 0.2);
}
.adv-title {
   font-size: 20px;
   font-weight: 700;
   color: var(--text-dark);
   margin-bottom: 10px;
   padding-right: 50px;
}
.adv-desc {
   font-size: 14px;
   line-height: 1.8;
   color: var(--text-muted);
}
/* ============ CTA Banner ============ */
.cta-banner {
   padding: 80px 0;
   background: var(--gradient-hero);
   position: relative;
   overflow: hidden;
}
.cta-banner::before {
   content: '';
   position: absolute;
   top: -50%;
   right: -20%;
   width: 600px;
   height: 600px;
   background: rgba(255, 255, 255, 0.08);
   border-radius: 50%;
}
.cta-banner::after {
   content: '';
   position: absolute;
   bottom: -50%;
   left: -10%;
   width: 400px;
   height: 400px;
   background: rgba(255, 255, 255, 0.06);
   border-radius: 50%;
}
.cta-container {
   max-width: 1200px;
   margin: 0 auto;
   padding: 0 24px;
   display: flex;
   align-items: center;
   justify-content: space-between;
   gap: 48px;
   position: relative;
   z-index: 1;
}
.cta-content {
   flex: 1;
}
.cta-title {
   font-size: 30px;
   font-weight: 800;
   color: white;
   margin-bottom: 12px;
   line-height: 1.3;
}
.cta-desc {
   font-size: 16px;
   color: rgba(255, 255, 255, 0.85);
   line-height: 1.7;
}
.cta-actions {
   flex-shrink: 0;
}
/* ============ 常见问题 ============ */
.faq {
   padding: 100px 0;
   background: var(--bg-light);
}
.faq-list {
   max-width: 860px;
   margin: 0 auto;
   display: flex;
   flex-direction: column;
   gap: 16px;
}
.faq-item {
   background: var(--bg-white);
   border-radius: var(--radius);
   border: 1px solid var(--border);
   overflow: hidden;
   transition: var(--transition);
}
.faq-item:hover {
   border-color: var(--primary-light);
   box-shadow: var(--shadow-sm);
}
.faq-item.active {
   border-color: var(--primary);
   box-shadow: var(--shadow);
}
.faq-question {
   padding: 22px 28px;
   display: flex;
   align-items: center;
   gap: 14px;
   cursor: pointer;
   user-select: none;
}
.faq-q {
   width: 32px;
   height: 32px;
   background: var(--gradient-primary);
   color: white;
   border-radius: 8px;
   display: flex;
   align-items: center;
   justify-content: center;
   font-weight: 700;
   font-size: 15px;
   flex-shrink: 0;
}
.faq-q-text {
   flex: 1;
   font-size: 16px;
   font-weight: 600;
   color: var(--text-dark);
   line-height: 1.5;
}
.faq-toggle {
   width: 28px;
   height: 28px;
   background: var(--bg-light);
   border-radius: 50%;
   display: flex;
   align-items: center;
   justify-content: center;
   font-size: 20px;
   font-weight: 700;
   color: var(--text-muted);
   transition: var(--transition);
   flex-shrink: 0;
}
.faq-item.active .faq-toggle {
   background: var(--primary);
   color: white;
   transform: rotate(45deg);
}
.faq-answer {
   max-height: 0;
   overflow: hidden;
   transition: max-height 0.35s ease, padding 0.35s ease;
   padding: 0 28px;
}
.faq-item.active .faq-answer {
   max-height: 300px;
   padding: 0 28px 22px 74px;
}
.faq-answer p {
   font-size: 15px;
   line-height: 1.9;
   color: var(--text-muted);
}
/* ============ 联系我们 ============ */
.contact {
   padding: 100px 0;
   background: var(--bg-white);
}
.contact-wrap {
   display: grid;
   grid-template-columns: 1.2fr 1fr;
   gap: 64px;
   align-items: center;
}
.contact-info .section-badge {
   margin-bottom: 20px;
}
.contact-title {
   font-size: 34px;
   font-weight: 800;
   color: var(--text-dark);
   margin-bottom: 16px;
   line-height: 1.3;
}
.contact-desc {
   font-size: 16px;
   line-height: 1.9;
   color: var(--text-muted);
   margin-bottom: 36px;
}
.contact-list {
   display: flex;
   flex-direction: column;
   gap: 24px;
}
.contact-item {
   display: flex;
   align-items: center;
   gap: 18px;
   padding: 20px 24px;
   background: var(--bg-light);
   border-radius: var(--radius);
   transition: var(--transition);
}
.contact-item:hover {
   background: var(--bg-white);
   box-shadow: var(--shadow);
   transform: translateX(6px);
}
.contact-icon {
   width: 52px;
   height: 52px;
   background: var(--gradient-primary);
   color: white;
   border-radius: 50%;
   display: flex;
   align-items: center;
   justify-content: center;
   flex-shrink: 0;
}
.contact-icon svg {
   width: 24px;
   height: 24px;
}
.contact-label {
   font-size: 13px;
   color: var(--text-muted);
   margin-bottom: 4px;
   font-weight: 500;
}
.contact-value {
   font-size: 17px;
   font-weight: 700;
   color: var(--text-dark);
}
.contact-preview {
   display: flex;
   justify-content: center;
}
.preview-card {
   width: 100%;
   max-width: 380px;
   background: var(--bg-white);
   border: 2px solid var(--border);
   border-radius: var(--radius-md);
   padding: 36px 32px;
   box-shadow: var(--shadow-xl);
   position: relative;
}
.preview-card::before {
   content: '';
   position: absolute;
   top: 10px;
   left: 10px;
   right: -10px;
   bottom: -10px;
   background: var(--gradient-hero);
   opacity: 0.15;
   border-radius: var(--radius-md);
   z-index: -1;
}
.preview-header {
   display: flex;
   align-items: center;
   gap: 12px;
   margin-bottom: 28px;
   padding-bottom: 20px;
   border-bottom: 2px dashed var(--border);
}
.preview-logo {
   font-size: 42px;
}
.preview-title {
   font-size: 18px;
   font-weight: 700;
   color: var(--text-dark);
}
.preview-body {
   margin-bottom: 28px;
}
.preview-body p {
   font-size: 15px;
   color: var(--text-normal);
   line-height: 1.8;
   margin-bottom: 8px;
}
.preview-body p:last-child {
   color: var(--primary);
   font-weight: 600;
   margin-bottom: 0;
}
/* ============ 页脚 ============ */
.footer {
   background: #0f172a;
   color: #94a3b8;
   padding: 72px 0 24px;
}
.footer-container {
   max-width: 1200px;
   margin: 0 auto;
   padding: 0 24px;
}
.footer-top {
   display: grid;
   grid-template-columns: 1.5fr 2fr;
   gap: 64px;
   padding-bottom: 48px;
   border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand .nav-logo {
   color: white;
   margin-bottom: 16px;
}
.footer-brand .logo-text {
   -webkit-text-fill-color: white;
}
.footer-desc {
   font-size: 14px;
   line-height: 1.9;
   max-width: 420px;
   color: #64748b;
}
.footer-links {
   display: grid;
   grid-template-columns: repeat(3, 1fr);
   gap: 40px;
}
.footer-col h4 {
   color: white;
   font-size: 15px;
   font-weight: 700;
   margin-bottom: 20px;
}
.footer-col ul {
   display: flex;
   flex-direction: column;
   gap: 12px;
}
.footer-col a {
   font-size: 14px;
   color: #64748b;
}
.footer-col a:hover {
   color: white;
}
.footer-bottom {
   padding-top: 24px;
   text-align: center;
}
.footer-bottom p {
   font-size: 13px;
   color: #475569;
   line-height: 1.8;
}
/* ============ 回到顶部 ============ */
.back-to-top {
   position: fixed;
   bottom: 32px;
   right: 32px;
   width: 48px;
   height: 48px;
   background: var(--gradient-primary);
   color: white;
   border: none;
   border-radius: 50%;
   cursor: pointer;
   display: flex;
   align-items: center;
   justify-content: center;
   box-shadow: var(--shadow-md);
   opacity: 0;
   visibility: hidden;
   transform: translateY(20px);
   transition: var(--transition);
   z-index: 999;
}
.back-to-top.show {
   opacity: 1;
   visibility: visible;
   transform: translateY(0);
}
.back-to-top:hover {
   transform: translateY(-4px);
   box-shadow: var(--shadow-lg);
}
.back-to-top svg {
   width: 22px;
   height: 22px;
}
/* ============ 响应式 ============ */
@media (max-width: 1024px) {
   .hero-container {
       grid-template-columns: 1fr;
       gap: 48px;
   }
   .hero-visual {
       max-width: 560px;
       margin: 0 auto;
       width: 100%;
   }
   .hero-title {
       font-size: 42px;
   }
   .features-grid {
       grid-template-columns: repeat(2, 1fr);
   }
   .advantages-grid {
       grid-template-columns: repeat(2, 1fr);
   }
   .contact-wrap {
       grid-template-columns: 1fr;
       gap: 48px;
   }
   .footer-top {
       grid-template-columns: 1fr;
       gap: 40px;
   }
}
@media (max-width: 768px) {
   .nav-menu {
       position: fixed;
       top: 68px;
       left: 0;
       right: 0;
       background: white;
       flex-direction: column;
       padding: 24px;
       gap: 20px;
       border-bottom: 1px solid var(--border);
       box-shadow: var(--shadow-md);
       transform: translateY(-120%);
       opacity: 0;
       transition: var(--transition);
       pointer-events: none;
   }
   .nav-menu.open {
       transform: translateY(0);
       opacity: 1;
       pointer-events: auto;
   }
   .hamburger {
       display: flex;
   }
   .nav-actions .btn-small {
       padding: 6px 14px;
       font-size: 13px;
   }
   .hero {
       padding: 110px 0 72px;
   }
   .hero-title {
       font-size: 32px;
   }
   .hero-subtitle {
       font-size: 15px;
   }
   .hero-actions {
       flex-direction: column;
       align-items: stretch;
   }
   .hero-actions .btn {
       width: 100%;
       justify-content: center;
   }
   .hero-stats {
       flex-direction: column;
       gap: 24px;
       text-align: center;
   }
   .stat-divider {
       display: none;
   }
   .section-title {
       font-size: 28px;
   }
   .section-desc {
       font-size: 15px;
   }
   .features-grid,
   .advantages-grid {
       grid-template-columns: 1fr;
       gap: 20px;
   }
   .flow-steps {
       flex-direction: column;
       gap: 20px;
       align-items: center;
   }
   .flow-step {
       max-width: 100%;
       width: 100%;
   }
   .flow-arrow {
       width: auto;
       height: 30px;
       transform: rotate(90deg);
   }
   .cta-container {
       flex-direction: column;
       text-align: center;
       gap: 28px;
   }
   .cta-title {
       font-size: 24px;
   }
   .faq-question {
       padding: 18px 20px;
       gap: 12px;
   }
   .faq-q-text {
       font-size: 14px;
   }
   .faq-item.active .faq-answer {
       padding: 0 20px 18px 64px;
   }
   .contact-title {
       font-size: 26px;
   }
   .footer-links {
       grid-template-columns: repeat(2, 1fr);
       gap: 32px;
   }
   .back-to-top {
       bottom: 20px;
       right: 20px;
       width: 44px;
       height: 44px;
   }
   .card-grid {
       grid-template-columns: repeat(8, 1fr);
       padding: 14px;
       gap: 4px;
   }
}
@media (max-width: 480px) {
   .hero-title {
       font-size: 28px;
   }
   .section-container {
       padding: 0 16px;
   }
   .nav-container {
       padding: 0 16px;
   }
   .feature-card,
   .adv-card {
       padding: 24px 20px;
   }
   .contact-item {
       padding: 16px;
   }
   .contact-value {
       font-size: 15px;
   }
   .card-grid {
       grid-template-columns: repeat(6, 1fr);
   }
}
/* ============ 滚动动画 ============ */
.reveal {
   opacity: 0;
   transform: translateY(40px);
   transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
   opacity: 1;
   transform: translateY(0);
}
/* ============ 套餐价格板块 ============ */
.pricing {
   padding: 80px 0;
   background: linear-gradient(180deg, #f8fafc 0%, #ffffff 60%);
}
.pricing-grid {
   display: grid;
   grid-template-columns: repeat(3, 1fr);
   gap: 24px;
   max-width: 1200px;
   margin: 40px auto 0 auto;
}
.price-card {
   position: relative;
   background: #fff;
   border-radius: 18px;
   box-shadow: 0 8px 24px rgba(102, 126, 234, 0.08);
   border: 1.5px solid #eef0f4;
   overflow: hidden;
   display: flex;
   flex-direction: column;
   transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.price-card:hover {
   transform: translateY(-6px);
   box-shadow: 0 20px 48px rgba(102, 126, 234, 0.16);
   border-color: #c7d0f8;
}
.price-card.recommended-card {
   border: 2px solid transparent;
   background: linear-gradient(#fff, #fff) padding-box,
               linear-gradient(135deg, #667eea 0%, #ff5722 100%) border-box;
   transform: scale(1.04);
   box-shadow: 0 20px 60px rgba(255, 87, 34, 0.18);
}
.price-card.recommended-card:hover {
   transform: scale(1.04) translateY(-6px);
   box-shadow: 0 28px 72px rgba(255, 87, 34, 0.25);
}
.recommend-badge {
   position: absolute;
   top: 0;
   right: -36px;
   width: 160px;
   height: 32px;
   background: linear-gradient(135deg, #ff9800 0%, #ff5722 100%);
   color: #fff;
   font-size: 13px;
   font-weight: bold;
   text-align: center;
   line-height: 34px;
   transform: rotate(45deg);
   transform-origin: bottom left;
   box-shadow: 0 4px 10px rgba(255, 87, 34, 0.3);
   z-index: 2;
}
.price-card-header {
   padding: 26px 28px 20px 28px;
   border-bottom: 1px dashed #eef0f4;
   display: flex;
   justify-content: space-between;
   align-items: center;
   background: linear-gradient(135deg, #fafbff 0%, #fbf6ff 100%);
}
.free-card .price-card-header { background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%); }
.monthly-card .price-card-header { background: linear-gradient(135deg, #fff8e1 0%, #fff3cd 100%); }
.yearly-card .price-card-header { background: linear-gradient(135deg, #fff3e0 0%, #ffe0b2 100%); }
.price-plan-name {
   font-size: 20px;
   font-weight: bold;
   color: #2c3e50;
}
.price-plan-tag {
   font-size: 12px;
   padding: 4px 10px;
   border-radius: 20px;
   background: #fff;
   color: #555;
   border: 1px solid #e5e7eb;
   font-weight: 500;
}
.free-card .price-plan-tag { background: #e9ecef; color: #555; border-color: #dee2e6; }
.monthly-card .price-plan-tag { background: #fff3cd; color: #7a5b00; border-color: #ffe083; }
.yearly-card .price-plan-tag { background: linear-gradient(135deg, #ff9800, #ff5722); color: #fff; border-color: transparent; }
.price-body {
   padding: 24px 28px 20px 28px;
   flex: 1;
   display: flex;
   flex-direction: column;
}
.price-amount {
   display: flex;
   align-items: baseline;
   gap: 6px;
   margin-bottom: 6px;
}
.price-num {
   font-size: 42px;
   font-weight: 800;
   background: linear-gradient(135deg, #2c3e50 0%, #555 100%);
   -webkit-background-clip: text;
   background-clip: text;
   -webkit-text-fill-color: transparent;
}
.free-card .price-num {
   background: linear-gradient(135deg, #64748b, #94a3b8);
   -webkit-background-clip: text;
   background-clip: text;
   -webkit-text-fill-color: transparent;
}
.monthly-card .price-num {
   background: linear-gradient(135deg, #b45309, #d97706);
   -webkit-background-clip: text;
   background-clip: text;
   -webkit-text-fill-color: transparent;
}
.yearly-card .price-num {
   background: linear-gradient(135deg, #ea580c, #ef4444);
   -webkit-background-clip: text;
   background-clip: text;
   -webkit-text-fill-color: transparent;
}
.price-unit {
   font-size: 14px;
   color: #777;
   font-weight: 500;
}
.price-price-compare {
   display: flex;
   align-items: center;
   gap: 12px;
   margin-bottom: 10px;
}
.price-old {
   font-size: 13px;
   color: #aaa;
   text-decoration: line-through;
}
.price-save {
   font-size: 12px;
   background: #ffe4e6;
   color: #e11d48;
   padding: 2px 10px;
   border-radius: 10px;
   font-weight: bold;
}
.price-desc {
   font-size: 13.5px;
   color: #777;
   margin-bottom: 18px;
   padding-bottom: 16px;
   border-bottom: 1px solid #f3f4f6;
}
.price-features {
   list-style: none;
   padding: 0;
   margin: 0;
   display: flex;
   flex-direction: column;
   gap: 10px;
   flex: 1;
}
.price-features li {
   display: flex;
   align-items: flex-start;
   gap: 10px;
   font-size: 14px;
   color: #4b5563;
   line-height: 1.5;
}
.pf-ok {
   color: #10b981;
   font-weight: bold;
   flex-shrink: 0;
   display: inline-block;
   width: 18px;
}
.pf-no {
   color: #d1d5db;
   font-weight: normal;
   flex-shrink: 0;
   display: inline-block;
   width: 18px;
}
.price-footer {
   padding: 18px 28px 26px 28px;
}
.btn-block {
   width: 100%;
   display: flex;
   justify-content: center;
   align-items: center;
   gap: 6px;
}
.btn-gradient {
   background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
   color: #fff;
   border: none;
   padding: 12px 24px;
   border-radius: 10px;
   font-size: 15px;
   font-weight: 600;
   cursor: pointer;
   text-decoration: none;
   display: inline-flex;
   align-items: center;
   transition: transform 0.15s, filter 0.15s;
   box-shadow: 0 6px 16px rgba(102, 126, 234, 0.35);
}
.btn-gradient:hover {
   filter: brightness(1.06);
   transform: translateY(-1px);
}
.pricing-note {
   max-width: 1000px;
   margin: 40px auto 0 auto;
   background: linear-gradient(135deg, #f0f9ff 0%, #fefce8 100%);
   border-radius: 14px;
   padding: 20px 24px;
   border: 1px solid #c7e5ff;
   display: flex;
   gap: 16px;
   align-items: flex-start;
}
.pricing-note-icon {
   font-size: 28px;
   flex-shrink: 0;
   line-height: 1;
   margin-top: 2px;
}
.pricing-note-text {
   flex: 1;
   color: #475569;
   font-size: 14px;
   line-height: 1.8;
}
.pricing-note-text p {
   margin: 0;
}
.pricing-note-text p + p {
   margin-top: 6px;
}
.pricing-note-text a {
   color: #6366f1;
   text-decoration: none;
   font-weight: 500;
}
.pricing-note-text a:hover {
   text-decoration: underline;
}
/* 响应式：套餐价格 */
@media (max-width: 960px) {
   .pricing-grid {
       grid-template-columns: 1fr;
       gap: 20px;
       padding: 0 8px;
   }
   .price-card.recommended-card {
       transform: scale(1);
   }
   .price-card.recommended-card:hover {
       transform: translateY(-6px);
   }
   .recommend-badge {
       right: -40px;
       top: 4px;
   }
}
@media (max-width: 480px) {
   .pricing { padding: 50px 0; }
   .price-card-header { padding: 22px 20px 18px 20px; }
   .price-body { padding: 20px; }
   .price-footer { padding: 14px 20px 22px 20px; }
   .price-num { font-size: 34px; }
   .pricing-note { padding: 16px; gap: 12px; }
   .pricing-note-icon { font-size: 24px; }
}
/* ============ 功能演示板块 ============ */
.demo {
   position: relative;
   padding: 100px 0 110px;
   background: linear-gradient(180deg, #ffffff 0%, #f0f4ff 100%);
   overflow: hidden;
}
.demo::before {
   content: "";
   position: absolute;
   top: 80px; right: -120px;
   width: 380px; height: 380px;
   background: radial-gradient(circle, rgba(139,92,246,0.12), transparent 70%);
   border-radius: 50%;
   pointer-events: none;
}
.demo::after {
   content: "";
   position: absolute;
   bottom: 60px; left: -100px;
   width: 340px; height: 340px;
   background: radial-gradient(circle, rgba(37,99,235,0.10), transparent 70%);
   border-radius: 50%;
   pointer-events: none;
}
.demo .section-container { position: relative; z-index: 2; }
.demo-grid {
   display: grid;
   grid-template-columns: repeat(2, 1fr);
   gap: 36px;
   margin-top: 50px;
}
.demo-card {
   background: #fff;
   border-radius: 24px;
   overflow: hidden;
   box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
   border: 1px solid rgba(148, 163, 184, 0.12);
   transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}
.demo-card:hover {
   transform: translateY(-6px);
   box-shadow: 0 20px 50px rgba(37, 99, 235, 0.12);
   border-color: rgba(99, 102, 241, 0.25);
}
.demo-thumb {
   position: relative;
   overflow: hidden;
   padding: 28px 28px 0 28px;
   background: linear-gradient(135deg, #eef2ff 0%, #f5f3ff 100%);
   border-bottom: 1px solid rgba(148, 163, 184, 0.08);
}
.demo-thumb img {
   width: 100%;
   height: 280px;
   object-fit: cover;
   border-radius: 16px 16px 0 0;
   display: block;
   box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
   transition: transform 0.5s ease;
}
.demo-card:hover .demo-thumb img {
   transform: scale(1.02);
}
.demo-tag {
   position: absolute;
   top: 44px;
   left: 44px;
   display: inline-flex;
   align-items: center;
   gap: 6px;
   padding: 6px 14px;
   border-radius: 999px;
   font-size: 12px;
   font-weight: 700;
   color: #fff;
   backdrop-filter: blur(8px);
   letter-spacing: 0.4px;
   box-shadow: 0 4px 12px rgba(0,0,0,0.12);
}
.demo-tag.scan    { background: linear-gradient(135deg, #10b981, #059669); }
.demo-tag.input   { background: linear-gradient(135deg, #2563eb, #6366f1); }
.demo-tag.detail  { background: linear-gradient(135deg, #8b5cf6, #7c3aed); }
.demo-tag.print   { background: linear-gradient(135deg, #f59e0b, #d97706); }
.demo-body {
   padding: 28px 32px 32px;
}
.demo-title {
   font-size: 20px;
   font-weight: 800;
   color: var(--text-dark);
   margin-bottom: 12px;
   line-height: 1.4;
}
.demo-desc {
   font-size: 14.5px;
   line-height: 1.85;
   color: var(--text-muted);
   margin: 0;
}
/* 功能演示响应式 */
@media (max-width: 1024px) {
   .demo { padding: 70px 0 80px; }
   .demo-thumb img { height: 240px; }
}
@media (max-width: 768px) {
   .demo { padding: 55px 0 65px; }
   .demo-grid {
       grid-template-columns: 1fr;
       gap: 26px;
       margin-top: 36px;
   }
   .demo-thumb { padding: 20px 20px 0 20px; }
   .demo-thumb img { height: 230px; border-radius: 12px 12px 0 0; }
   .demo-tag { top: 34px; left: 34px; }
   .demo-body { padding: 22px 22px 26px; }
   .demo-title { font-size: 18px; }
}
@media (max-width: 480px) {
   .demo { padding: 44px 0 54px; }
   .demo-grid { gap: 20px; }
   .demo-thumb img { height: 200px; }
   .demo-body { padding: 18px 18px 22px; }
   .demo-title { font-size: 16.5px; }
   .demo-desc { font-size: 13.5px; line-height: 1.8; }
}
/* ============================================================
* 功能演示 · 真实复刻样式（rd-* 系列）
* 4 张卡片对应系统真实输出：操作界面 / 返货明细 / Excel明细 / 交接单
* ============================================================ */
.demo-thumb-real {
   padding: 36px 20px 0;
}
.demo-thumb-real .demo-tag {
   top: 48px;
   left: 32px;
   z-index: 3;
}
/* ---------- 通用：窗口容器 ---------- */
.rd {
   width: 100%;
   height: 280px;
   position: relative;
   border-radius: 14px 14px 0 0;
   overflow: hidden;
   background: #f1f5f9;
}
.rd-window {
   width: 100%;
   height: 100%;
   background: #fff;
   border: 1px solid #e2e8f0;
   border-radius: 12px 12px 0 0;
   display: flex;
   flex-direction: column;
   overflow: hidden;
   font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
   color: #1e293b;
}
.rd-window-mac { box-shadow: 0 6px 20px rgba(15,23,42,0.08); }
.rd-wh {
   display: flex;
   align-items: center;
   justify-content: space-between;
   padding: 10px 14px;
   background: linear-gradient(180deg, #fafafa, #f1f5f9);
   border-bottom: 1px solid #e2e8f0;
   font-size: 13px;
   font-weight: 600;
   flex-shrink: 0;
}
.rd-dots { display: inline-flex; gap: 7px; align-items: center; }
.rd-dots i {
   display: inline-block;
   width: 11px; height: 11px;
   border-radius: 50%;
   background: #cbd5e1;
}
.rd-dots i.r { background: #ef4444; }
.rd-dots i.y { background: #f59e0b; }
.rd-dots i.g { background: #10b981; }
.rd-wtitle { color: #475569; font-size: 12.5px; }
.rd-wbody {
   flex: 1;
   padding: 12px;
   overflow: hidden;
   display: flex;
   flex-direction: column;
   gap: 10px;
}
/* ================== 卡片1：装车清单操作界面 ================== */
.rd-op-toolbar {
   display: flex;
   align-items: center;
   gap: 4px;
   flex-wrap: nowrap;           /* 严格一排不换行 */
   overflow-x: auto;            /* 太窄时横向滚动而非换行 */
   padding: 5px 6px;
   background: #ffffff;
   border: 1px solid #e2e8f0;
   border-radius: 4px;
   flex-shrink: 0;
}
.rd-op-toolbar > * { flex-shrink: 0; } /* 保证每一项不被挤压 */
.rd-op-btn {
   display: inline-flex;
   align-items: center;
   gap: 3px;
   padding: 3px 6px;
   border-radius: 4px;
   font-size: 9.5px;
   font-weight: 700;
   color: #fff;
   white-space: nowrap;
   border: 1px solid rgba(0,0,0,0.06);
   height: 24px;
}
/* 色值对齐真实业务界面截图（真实用户截图） */
.rd-op-btn.green     { background: #27ae60; } /* 导入/打印交接单 绿 */
.rd-op-btn.darkgreen { background: #27ae60; }
.rd-op-btn.red       { background: #e53935; } /* 打印返货单 红 */
.rd-op-btn.purple    { background: #9b59b6; } /* 导出装车明细/装车记录 紫 */
.rd-op-btn.dblue     { background: #3498db; } /* 帮助 蓝 */
.rd-op-btn.ghost     { background: #fff; color: #334155; border: 1px solid #cbd5e1; }
/* 状态 Pill（代替之前的 rd-pill + rd-progress-line） */
.rd-op-pill {
   display: inline-flex;
   align-items: center;
   padding: 2px 7px;
   border-radius: 4px;
   font-size: 9.5px;
   font-weight: 700;
   color: #fff;
   white-space: nowrap;
   height: 22px;
   line-height: 18px;
}
.rd-op-pill.blue   { background: #3498db; }  /* 应返/日期 */
.rd-op-pill.green  { background: #27ae60; }  /* 实返 */
.rd-op-pill.orange { background: #e67e22; }  /* 未返 */
.rd-op-pill.purple { background: #9b59b6; }  /* 实返体积 */
.rd-scan-box {
   padding: 2px 8px;
   background: #fff;
   border: 1px solid #94a3b8;
   border-radius: 4px;
   color: #64748b;
   font-size: 9.5px;
   flex: 1 1 100px;           /* 可变宽度占左边，但仍保持一排 */
   min-width: 70px;
   max-width: 220px;
   height: 24px;
   line-height: 20px;
   overflow: hidden;
   white-space: nowrap;
   text-overflow: ellipsis;
}
/* 真实用户截图中已不需要单独的进度行 & 状态 pills 行（都合并到一排toolbar了） */
.rd-progress-line {
   display: none;
}
.rd-status-pills {
   display: none;
}
.rd-pill {
   display: inline-flex;
   align-items: center;
   gap: 4px;
   padding: 4px 10px;
   border-radius: 6px;
   font-size: 11.5px;
   color: #fff;
   font-weight: 700;
}
.rd-pill.blue   { background: #3b82f6; }
.rd-pill.green  { background: #22c55e; }
.rd-pill.orange { background: #f59e0b; }
.rd-pill.cyan   { background: #06b6d4; }
.rd-tip-bar {
   display: flex;
   align-items: center;
   gap: 6px;
   padding: 4px 10px;
   background: #eff6ff;
   border: 1px solid #bfdbfe;
   border-radius: 4px;
   color: #1e40af;
   font-size: 9.5px;
   line-height: 1.4;
   flex-shrink: 0;
   white-space: nowrap;
   overflow: hidden;
}
.rd-grid-10 {
   flex: 1;
   display: grid;
   grid-template-columns: repeat(10, 1fr);
   gap: 4px;
   align-content: start;
   min-height: 0;
}
.rd-cell {
   aspect-ratio: 1;
   background: #f1f5f9;
   border: 1px solid #e2e8f0;
   border-radius: 4px;
   display: flex;
   align-items: center;
   justify-content: center;
   font-size: 10.5px;
   font-weight: 600;
   color: #64748b;
}
.rd-cell.ok {
   background: #dcfce7;
   border-color: #16a34a;
   color: #166534;
}
.rd-cell.cur {
   background: #ffedd5;
   border-color: #f97316;
   color: #c2410c;
   box-shadow: 0 0 0 2px rgba(249,115,22,0.25);
}
/* ================== 卡片2：返货明细 15列打印 ================== */
.rd-paper {
   width: 100%;
   height: 100%;
   background: #fff;
   border: 1px solid #d1d5db;
   padding: 10px 12px 8px;
   overflow: hidden;
   display: flex;
   flex-direction: column;
   font-family: "SimSun", "宋体", "Microsoft YaHei", serif;
   color: #111;
   box-sizing: border-box;
   position: relative;
}
.rd-paper-title {
   text-align: center;
   font-size: 14px;
   font-weight: 800;
   margin: 0 0 4px;
   letter-spacing: 2px;
}
.rd-paper-sub {
   text-align: center;
   font-size: 10px;
   color: #374151;
   margin-bottom: 5px;
}
.rd-paper-stats {
   display: flex;
   align-items: center;
   justify-content: center;
   gap: 16px;
   font-size: 10px;
   padding: 3px 0 4px;
   border-bottom: 1px dashed #9ca3af;
   margin-bottom: 5px;
   flex-wrap: wrap;
}
.rd-paper-stats b { color: #111; font-weight: 700; }
.rd-paper-legend {
   display: flex;
   align-items: center;
   justify-content: center;
   gap: 14px;
   font-size: 9px;
   color: #374151;
   margin-bottom: 4px;
}
.rd-legend-box {
   display: inline-block;
   width: 14px; height: 10px;
   vertical-align: middle;
   margin-right: 3px;
   border: 1px dashed #6b7280;
}
.rd-legend-box.done { border: 1px solid #4b5563; background: #e5e7eb; }
.rd-grid-15 {
   display: grid;
   grid-template-columns: repeat(15, 1fr);
   gap: 2px;
   flex: 1;
   align-content: start;
   min-height: 0;
}
.rd-grid-cell {
   background: #fff;
   border: 1px dashed #9ca3af;
   border-radius: 2px;
   display: flex;
   flex-direction: column;
   align-items: center;
   justify-content: center;
   padding: 2px 1px;
   min-height: 0;
   overflow: hidden;
}
.rd-grid-cell.done {
   border: 1px solid #4b5563;
   background: #e5e7eb;
}
.rd-cell-no {
   font-size: 9px;
   font-weight: 700;
   color: #111;
   line-height: 1;
}
.rd-cell-name {
   font-size: 7.5px;
   color: #374151;
   line-height: 1.2;
   margin-top: 1px;
   text-align: center;
   max-width: 100%;
   overflow: hidden;
   white-space: nowrap;
   text-overflow: ellipsis;
}
.rd-paper-footer {
   text-align: center;
   font-size: 8.5px;
   color: #6b7280;
   padding-top: 4px;
   border-top: 1px solid #e5e7eb;
   margin-top: 4px;
   flex-shrink: 0;
}
/* ================== 卡片3：装车明细 Excel 导出 ================== */
.rd-excel {
   width: 100%;
   height: 100%;
   background: #fff;
   border: 1px solid #d1d5db;
   border-radius: 10px 10px 0 0;
   overflow: hidden;
   display: flex;
   flex-direction: column;
   font-family: "Calibri", "Microsoft YaHei", sans-serif;
   color: #111;
   font-size: 11px;
}
.rd-excel-head {
   display: flex;
   align-items: center;
   gap: 8px;
   padding: 6px 12px;
   background: linear-gradient(180deg, #217346, #175a35);
   color: #fff;
   font-size: 12px;
   font-weight: 700;
   flex-shrink: 0;
}
.rd-excel-tabs {
   display: flex;
   align-items: center;
   gap: 2px;
   padding: 3px 8px;
   background: #f3f4f6;
   border-bottom: 1px solid #d1d5db;
   font-size: 10.5px;
   flex-shrink: 0;
}
.rd-excel-tab {
   padding: 3px 10px;
   background: #fff;
   border: 1px solid #d1d5db;
   border-bottom: none;
   border-radius: 4px 4px 0 0;
   color: #1f2937;
   font-weight: 600;
}
.rd-excel-cols {
   display: grid;
   grid-template-columns: repeat(18, 1fr);
   background: #f3f4f6;
   border-top: 1px solid #d1d5db;
   border-bottom: 1px solid #d1d5db;
   flex-shrink: 0;
}
.rd-excel-col {
   text-align: center;
   font-size: 10px;
   font-weight: 700;
   color: #1f2937;
   padding: 3px 1px;
   border-right: 1px solid #d1d5db;
   background: linear-gradient(180deg, #fafafa, #e5e7eb);
   overflow: hidden;
   white-space: nowrap;
   text-overflow: ellipsis;
}
.rd-excel-col.col-a { background: #fff2cc; border-right: 2px solid #217346; }
.rd-excel-body {
   flex: 1;
   overflow: hidden;
}
.rd-excel-row {
   display: grid;
   grid-template-columns: repeat(18, 1fr);
   border-bottom: 1px solid #e5e7eb;
}
.rd-excel-row .c {
   padding: 3px 3px;
   border-right: 1px solid #e5e7eb;
   font-size: 9px;
   color: #111;
   overflow: hidden;
   white-space: nowrap;
   text-overflow: ellipsis;
   line-height: 1.3;
}
.rd-excel-row .c.no {
   background: #fff2cc;
   text-align: center;
   font-weight: 700;
   border-right: 2px solid #217346;
   color: #1f2937;
}
.rd-excel-row:nth-child(even) { background: #fafafa; }
/* ================== 卡片4：交接单 A4 打印 ================== */
.rd-handover {
   width: 100%;
   height: 100%;
   background: #fff;
   border: 2px solid #1f2937;
   padding: 10px 14px 8px;
   box-sizing: border-box;
   display: flex;
   flex-direction: column;
   font-family: "SimSun", "宋体", "Microsoft YaHei", serif;
   color: #111;
   position: relative;
   overflow: hidden;
}
.rd-handover-title {
   font-size: 20px;
   font-weight: 800;
   text-align: center;
   padding: 2px 0 8px;
   border-bottom: 2px solid #1f2937;
   letter-spacing: 4px;
   line-height: 1.2;
}
.rd-handover-headbar {
   background: #f3f4f6;
   border-bottom: 2px solid #1f2937;
   padding: 6px 14px;
   display: grid;
   grid-template-columns: repeat(3, 1fr);
   gap: 8px;
   margin-bottom: 8px;
}
.rd-hb-item {
   text-align: center;
}
.rd-hb-label {
   font-size: 11px;
   font-weight: 700;
   color: #1f2937;
   margin-bottom: 2px;
}
.rd-hb-value {
   font-size: 16px;
   font-weight: 800;
   color: #111;
}
.rd-handover-form {
   border: 1.5px solid #1f2937;
   margin-bottom: 10px;
}
.rd-hf-row {
   display: grid;
   grid-template-columns: 110px 1fr;
   border-bottom: 1px solid #1f2937;
}
.rd-hf-row:last-child { border-bottom: none; }
.rd-hf-label {
   background: #f3f4f6;
   padding: 6px 10px;
   font-size: 12.5px;
   font-weight: 700;
   border-right: 1.5px solid #1f2937;
   display: flex;
   align-items: center;
   justify-content: center;
}
.rd-hf-value {
   padding: 6px 12px;
   font-size: 12.5px;
   color: #111;
   display: flex;
   align-items: center;
}
.rd-sign-area {
   display: grid;
   grid-template-columns: 1fr 1fr;
   gap: 16px;
   padding: 4px 4px 2px;
   font-size: 11.5px;
}
.rd-sign-left .rd-sign-line { margin-right: auto; }
.rd-sign-right { text-align: right; }
.rd-sign-row {
   margin-bottom: 6px;
   display: flex;
   align-items: center;
   gap: 6px;
}
.rd-sign-right .rd-sign-row { justify-content: flex-end; }
.rd-sign-line {
   display: inline-block;
   width: 100px;
   border-bottom: 1px solid #111;
   vertical-align: bottom;
   height: 18px;
}
.rd-handover-footnote {
   margin-top: auto;
   text-align: center;
   padding-top: 4px;
   border-top: 1px solid #9ca3af;
   font-size: 8px;
   color: #4b5563;
}
/* 响应式：demo 真实卡片的缩放 */
@media (max-width: 1024px) {
   .rd { height: 240px; }
}
@media (max-width: 768px) {
   .rd { height: 230px; }
   .demo-thumb-real { padding: 28px 16px 0; }
}
@media (max-width: 480px) {
   .rd { height: 200px; }
   .rd-cell-name, .rd-cell-no { font-size: 7px; }
   .rd-grid-15 { gap: 1px; }
}
/* =============== iPhone 手机屏（375px / 390px）专项 =============== */
@media (max-width: 414px) {
   /* --- 导航 --- */
   .nav-logo-text { font-size: 15px; }
   .nav-logo-sub { display: none; }
   .nav-container { height: 58px; padding: 0 14px; }
   .hamburger { width: 34px; height: 34px; }
   .nav-menu { top: 58px; }
   .nav-actions .btn-small.btn-primary {
      padding: 6px 10px;
      font-size: 12px;
      border-radius: 8px;
   }
   /* --- Hero 首屏 --- */
   .hero { padding: 96px 0 56px; }
   .hero-badge { font-size: 11.5px; padding: 5px 12px; }
   .hero-title { font-size: 24px; line-height: 1.35; letter-spacing: 0.5px; }
   .hero-subtitle { font-size: 14px; line-height: 1.8; margin: 18px 0 26px; }
   .hero-actions { gap: 12px; }
   .hero-actions .btn {
      height: 44px;
      font-size: 14px;
      border-radius: 10px;
   }
   .hero-stats {
      gap: 18px;
      padding: 20px 14px;
      border-radius: 14px;
      margin-top: 28px;
   }
   .stat-num { font-size: 24px; }
   .stat-label { font-size: 11.5px; }
   .hero-card { padding: 14px; border-radius: 16px; }
   .hero-visual-badge { font-size: 11px; padding: 5px 10px; }
   /* --- 通用 section --- */
   .section-container { padding: 0 14px; }
   .section-header { margin-bottom: 40px; }
   .section-title { font-size: 23px; line-height: 1.4; }
   .section-desc { font-size: 13.5px; line-height: 1.85; }
   /* --- 功能演示 Demo 卡片（375px 重点：工具栏保持一排 + 可横向滑） --- */
   .demo { padding: 40px 0 50px; }
   .demo-grid { gap: 18px; margin-top: 28px; }
   .demo-thumb { padding: 16px 16px 0 16px; }
   .demo-thumb-real { padding: 22px 14px 0; }
   .demo-thumb img { height: 180px; border-radius: 10px 10px 0 0; }
   .demo-body { padding: 16px 16px 20px; }
   .demo-title { font-size: 15.5px; margin-bottom: 8px; }
   .demo-desc { font-size: 13px; line-height: 1.85; }
   /* rd 复刻卡片：375px 下缩高一点，按钮图标化时不挤换行（已经 nowrap + overflow-x auto） */
   .rd { height: 195px; }
   .rd-wh { padding: 8px 10px; font-size: 11.5px; }
   .rd-wtitle { font-size: 11px; }
   .rd-dots i { width: 9px; height: 9px; }
   .rd-dots { gap: 5px; }
   .rd-wbody { padding: 9px; gap: 8px; }
   /* 工具栏：关键！保持 nowrap，溢出滑屏；按钮再窄一点，确保能看到至少 4~5 个 */
   .rd-op-toolbar {
      padding: 4px 5px;
      gap: 3px;
      border-radius: 5px;
   }
   .rd-op-btn {
      padding: 3px 4.5px;
      font-size: 8.5px;
      height: 22px;
      border-radius: 3.5px;
   }
   .rd-scan-box {
      font-size: 8.5px;
      height: 22px;
      line-height: 18px;
      min-width: 55px;
      flex: 1 1 70px;
   }
   .rd-op-pill {
      padding: 2px 5px;
      font-size: 8.5px;
      height: 20px;
   }
   .rd-tip-bar {
      font-size: 8px;
      padding: 3px 6px;
      gap: 4px;
   }
   /* 15 列网格：手机 375px 下格子太小，改为 10 列展示会更合理？不过保持原样，字号调小 */
   .rd-grid-10 { gap: 3px; }
   .rd-grid-15 { gap: 2px; }
   .rd-cell {
      font-size: 9px;
      border-radius: 3px;
   }
   .rd-cell.ok { font-size: 8.5px; }
   .rd-cell.pending { font-size: 8.5px; }
   .rd-cell-name, .rd-cell-no { font-size: 6.5px; }
   /* 交接单卡片：手机小屏上的标题/表格缩一下 */
   .ho-header-title { font-size: 11px; letter-spacing: 1px; }
   .ho-sum-num { font-size: 16px; }
   .ho-sum-label { font-size: 8px; }
   /* --- 套餐价格 --- */
   .pricing { padding: 42px 0; }
   .pricing-grid { padding: 0; gap: 16px; margin-top: 28px; }
   .price-card-header { padding: 20px 16px 16px 16px; }
   .price-body { padding: 16px; }
   .price-footer { padding: 12px 16px 20px; }
   .price-plan-name { font-size: 15px; }
   .price-plan-desc { font-size: 12px; }
   .price-num { font-size: 30px; }
   .price-unit { font-size: 13px; }
   .price-original { font-size: 12px; }
   .price-note { font-size: 11.5px; }
   .price-list li { font-size: 13px; }
   .price-btn {
      height: 42px;
      font-size: 14px;
      border-radius: 10px;
   }
   .pricing-note { padding: 14px; gap: 10px; }
   .pricing-note-icon { font-size: 22px; width: 36px; height: 36px; }
   .pricing-note-text { font-size: 12.5px; line-height: 1.8; }
   /* --- 功能 Feature / Advantages --- */
   .features, .advantages { padding: 50px 0; }
   .features-grid, .advantages-grid { gap: 16px; }
   .feature-card, .adv-card { padding: 20px 16px; border-radius: 14px; }
   .feature-icon, .adv-icon {
      width: 42px; height: 42px; font-size: 20px; border-radius: 10px;
   }
   .feature-title, .adv-title { font-size: 16px; }
   .feature-desc, .adv-desc { font-size: 13px; line-height: 1.85; }
   /* --- 使用流程 --- */
   .flow { padding: 50px 0; }
   .flow-steps { gap: 14px; }
   .flow-step { padding: 18px 14px; border-radius: 12px; }
   .flow-num { width: 32px; height: 32px; font-size: 15px; }
   .flow-title { font-size: 15px; }
   .flow-desc { font-size: 12.5px; }
   /* --- 联系我们 --- */
   .contact { padding: 50px 0; }
   .contact-wrap { gap: 32px; }
   .contact-title { font-size: 22px; line-height: 1.4; }
   .contact-subtitle { font-size: 13.5px; }
   .contact-grid { gap: 12px; }
   .contact-item {
      padding: 14px;
      border-radius: 12px;
      gap: 12px;
   }
   .contact-icon { width: 38px; height: 38px; font-size: 18px; border-radius: 10px; }
   .contact-label { font-size: 11px; }
   .contact-value { font-size: 14px; word-break: break-all; }
   /* --- FAQ --- */
   .faq { padding: 50px 0; }
   .faq-list { gap: 10px; }
   .faq-question { padding: 14px 16px; gap: 10px; }
   .faq-q-icon {
      width: 28px; height: 28px; font-size: 14px; border-radius: 7px;
   }
   .faq-q-text { font-size: 13.5px; line-height: 1.5; }
   .faq-item.active .faq-answer {
      padding: 0 16px 14px 54px;
      font-size: 13px;
      line-height: 1.85;
   }
   /* --- CTA 行动条 --- */
   .cta { padding: 40px 0; }
   .cta-container {
      padding: 28px 20px;
      border-radius: 16px;
      gap: 22px;
   }
   .cta-title { font-size: 22px; line-height: 1.4; }
   .cta-desc { font-size: 13px; line-height: 1.8; }
   .cta-actions { gap: 10px; }
   .cta-actions .btn {
      height: 44px;
      font-size: 14px;
      width: 100%;
      justify-content: center;
   }
   /* --- Footer --- */
   .footer { padding: 40px 0 20px; }
   .footer-top { gap: 28px; }
   .footer-brand-name { font-size: 18px; }
   .footer-brand-desc { font-size: 12.5px; line-height: 1.85; }
   .footer-links {
      grid-template-columns: 1fr 1fr;
      gap: 20px;
   }
   .footer-link-title { font-size: 13.5px; }
   .footer-link-list a { font-size: 12.5px; }
   .footer-contact-list li { font-size: 12.5px; }
   .footer-bottom {
      padding: 16px 0 0 0;
      flex-direction: column;
      gap: 8px;
      text-align: center;
      font-size: 11.5px;
   }
   /* --- Demo 明细卡片 2：进度条太窄时仍保持一排（已经 nowrap + 横向滚动）--- */
   .rd-mini-line {
      gap: 4px;
      height: 5px;
   }
   .rd-mini-cell {
      min-width: 4px;
   }
}