/* ===== 基础重置与变量 ===== */
:root {
    --brand: #1296db;
    --primary: #1e40af;
    --primary-light: #3b82f6;
    --primary-dark: #1e3a8a;
    --accent: #0ea5e9;
    --teal: #14b8a6;
    --purple: #8b5cf6;
    --orange: #f97316;
    --green: #22c55e;
    --red: #ef4444;
    --text: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --bg: #ffffff;
    --bg-light: #f8fafc;
    --border: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    color: var(--text);
    line-height: 1.6;
    background: var(--bg);
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

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

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 15px;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1.5px solid var(--primary-light);
}

.btn-outline:hover {
    background: rgba(37, 99, 235, 0.06);
}

.btn-text {
    color: var(--text-secondary);
    background: transparent;
    padding: 10px 16px;
}

.btn-text:hover {
    color: var(--primary);
}

.btn-large {
    padding: 14px 28px;
    font-size: 16px;
    border-radius: 10px;
}

.btn-white {
    background: white;
    color: var(--primary);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1);
}

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.btn-outline-white {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1.5px solid rgba(255, 255, 255, 0.5);
}

.btn-outline-white:hover {
    background: rgba(255, 255, 255, 0.2);
}

.btn-block {
    width: 100%;
}

/* ===== 顶部导航 ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.6);
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 700;
    color: var(--text);
}

.logo-series {
    font-size: 13px;
    font-weight: 600;
    color: var(--brand);
    background: rgba(37, 99, 235, 0.08);
    padding: 2px 8px;
    border-radius: 4px;
    letter-spacing: 0.5px;
    line-height: 1.4;
}

.footer-brand .logo-series {
    background: rgba(255,255,255,0.12);
    color: rgba(255,255,255,0.9);
}

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

.nav a {
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav a:hover {
    color: var(--primary);
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-light);
    transition: var(--transition);
}

.nav a:hover::after {
    width: 100%;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    transition: var(--transition);
}

/* ===== Hero 区域 ===== */
.hero {
    position: relative;
    padding: 140px 0 100px;
    overflow: hidden;
    background: linear-gradient(180deg, #eff6ff 0%, #ffffff 100%);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: white;
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    box-shadow: var(--shadow);
}

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

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

.hero h1 {
    font-size: 52px;
    line-height: 1.15;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 24px;
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    max-width: 520px;
}

/* Hero 角色价值标签 */
.hero-role-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 32px;
}

.role-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: rgba(255,255,255,0.85);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 13px;
    color: var(--text-secondary);
    cursor: default;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.role-tag svg {
    flex-shrink: 0;
    opacity: 0.7;
}

.role-tag.active {
    border-color: var(--primary-light);
    background: white;
    color: var(--primary);
    box-shadow: 0 2px 8px rgba(37,99,235,0.12);
}

.role-tag.active svg {
    opacity: 1;
}

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

.hero-stats {
    display: flex;
    gap: 48px;
}

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

.stat-item strong {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary);
}

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

/* Hero 可视化仪表盘 */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.dashboard-card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 480px;
    overflow: hidden;
    border: 1px solid var(--border);
}

.dashboard-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: #f8fafc;
    border-bottom: 1px solid var(--border);
}

.dashboard-dots {
    display: flex;
    gap: 6px;
}

.dashboard-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #cbd5e1;
}

.dashboard-dots span:first-child { background: #ef4444; }
.dashboard-dots span:nth-child(2) { background: #f59e0b; }
.dashboard-dots span:last-child { background: #22c55e; }

.dashboard-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
}

.dashboard-body {
    padding: 24px;
}

.dashboard-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

.dashboard-metric {
    background: #f8fafc;
    border-radius: 12px;
    padding: 16px;
    display: flex;
    flex-direction: column;
}

.metric-label {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.metric-value {
    font-size: 22px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 6px;
}

.metric-trend {
    font-size: 12px;
    font-weight: 600;
}

.metric-trend.up {
    color: var(--green);
}

.dashboard-chart {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    height: 100px;
    margin-bottom: 24px;
    padding: 0 8px;
}

.chart-bar {
    flex: 1;
    background: linear-gradient(180deg, var(--primary-light) 0%, var(--accent) 100%);
    border-radius: 6px 6px 0 0;
    opacity: 0.85;
    transition: var(--transition);
}

.chart-bar:hover {
    opacity: 1;
}

.dashboard-tasks {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.task-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    border-radius: 10px;
    font-size: 13px;
    background: #f8fafc;
}

.task-icon {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    color: white;
    flex-shrink: 0;
}

.task-success .task-icon { background: var(--green); }
.task-warning .task-icon { background: var(--orange); }

.task-time {
    margin-left: auto;
    color: var(--text-muted);
    font-size: 12px;
}

/* Hero 背景装饰 */
.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 1;
    overflow: hidden;
    pointer-events: none;
}

.hero-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
}

.blob-1 {
    width: 500px;
    height: 500px;
    background: #bfdbfe;
    top: -150px;
    right: -100px;
}

.blob-2 {
    width: 400px;
    height: 400px;
    background: #bae6fd;
    bottom: -100px;
    left: -100px;
}

/* ===== 通用区块 ===== */
.section {
    padding: 100px 0;
}

.section-light {
    background: var(--bg-light);
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 64px;
}

.section-tag {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 38px;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--text);
}

.section-header p {
    font-size: 18px;
    color: var(--text-secondary);
}

/* ===== 产品功能 ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: white;
    border-radius: var(--radius);
    padding: 32px;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-icon svg {
    color: white;
}

.icon-blue { background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%); }
.icon-teal { background: linear-gradient(135deg, #14b8a6 0%, #0d9488 100%); }
.icon-purple { background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%); }
.icon-orange { background: linear-gradient(135deg, #f97316 0%, #ea580c 100%); }
.icon-green { background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%); }
.icon-red { background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%); }

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

.feature-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 插卡即查能力条 */
.features-banner {
    margin-top: 40px;
    display: flex;
    align-items: center;
    gap: 20px;
    background: linear-gradient(135deg, #eff6ff 0%, #f0fdfa 100%);
    border: 1px solid #bae6fd;
    border-radius: var(--radius);
    padding: 28px 32px;
    transition: var(--transition);
}

.features-banner:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.banner-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: linear-gradient(135deg, #3b82f6 0%, #0ea5e9 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: white;
}

.banner-content h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text);
}

.banner-content p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* ===== 解决方案 ===== */
.solutions-list {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.solution-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
    background: white;
    border-radius: var(--radius-lg);
    padding: 48px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.solution-reverse {
    direction: rtl;
}

.solution-reverse > * {
    direction: ltr;
}

.solution-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.solution-illustration {
    width: 220px;
    height: 220px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.illustration-factory { background: #eff6ff; color: var(--primary); }
.illustration-broker { background: #f0fdfa; color: var(--teal); }
.illustration-zone { background: #faf5ff; color: var(--purple); }

.solution-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
    background: rgba(37,99,235,0.1);
    color: var(--primary);
    margin-bottom: 12px;
}

.solution-badge-green {
    background: rgba(34,197,94,0.1);
    color: var(--green);
}

.solution-badge-purple {
    background: rgba(139,92,246,0.1);
    color: var(--purple);
}

.solution-badge-teal {
    background: rgba(20,184,166,0.1);
    color: var(--teal);
}

.solution-content h3 {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 16px;
}

.solution-content > p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 24px;
    line-height: 1.7;
}

.solution-value {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px dashed var(--border);
}

.solution-value span {
    font-size: 14px;
    font-weight: 500;
    color: var(--primary);
    background: rgba(37,99,235,0.06);
    padding: 6px 14px;
    border-radius: 8px;
}

.solution-points {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.solution-points li {
    position: relative;
    padding-left: 24px;
    font-size: 15px;
    color: var(--text);
}

.solution-points li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--green);
    font-weight: 700;
}

/* ===== 客户案例 / 信任 ===== */
.trust-section {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    color: white;
}

.trust-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 64px;
    align-items: center;
}

.trust-content .section-tag {
    background: rgba(255, 255, 255, 0.15);
    color: white;
}

.trust-content h2 {
    font-size: 38px;
    font-weight: 800;
    margin-bottom: 16px;
}

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

.trust-stats-row {
    display: flex;
    gap: 48px;
}

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

.trust-stat strong {
    font-size: 36px;
    font-weight: 800;
}

.trust-stat span {
    font-size: 14px;
    opacity: 0.85;
}

.trust-cards {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.trust-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius);
    padding: 28px;
}

.trust-logo {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
    opacity: 0.95;
}

.trust-card > p {
    font-size: 16px;
    line-height: 1.7;
    margin-bottom: 20px;
    opacity: 0.95;
}

.trust-author {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.trust-author strong {
    font-size: 15px;
}

.trust-author span {
    font-size: 13px;
    opacity: 0.8;
}

/* ===== 价格方案 ===== */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.pricing-card {
    background: white;
    border-radius: var(--radius);
    padding: 36px 28px;
    border: 1px solid var(--border);
    transition: var(--transition);
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.pricing-featured {
    border-color: var(--primary-light);
    box-shadow: 0 10px 40px rgba(37, 99, 235, 0.12);
    transform: scale(1.02);
}

.pricing-featured:hover {
    transform: scale(1.02) translateY(-6px);
}

.pricing-badge {
    position: absolute;
    top: -1px;
    right: 24px;
    background: var(--primary);
    color: white;
    font-size: 12px;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 0 0 8px 8px;
}

.pricing-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 16px;
}

.pricing-price {
    display: flex;
    align-items: baseline;
    gap: 2px;
    margin-bottom: 8px;
}

.pricing-price .currency {
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
}

.pricing-price .amount {
    font-size: 42px;
    font-weight: 800;
    color: var(--primary);
}

.pricing-price .period {
    font-size: 14px;
    color: var(--text-muted);
}

.pricing-desc {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 24px;
}

.pricing-features {
    margin-bottom: 28px;
}

.pricing-features li {
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    font-size: 15px;
    color: var(--text-secondary);
    position: relative;
    padding-left: 24px;
}

.pricing-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--green);
    font-weight: 700;
}

/* 产品版本标签 */
.version-tag {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
}

.version-blue {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
}

.version-teal {
    background: rgba(20, 184, 166, 0.1);
    color: var(--teal);
}

.version-purple {
    background: rgba(139, 92, 246, 0.1);
    color: var(--purple);
}

.version-orange {
    background: rgba(249, 115, 22, 0.1);
    color: var(--orange, #f97316);
}

.version-target {
    background: var(--bg-light);
    border-radius: 10px;
    padding: 14px 16px;
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.version-target strong {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 600;
}

.version-target span {
    font-size: 15px;
    color: var(--text);
    font-weight: 500;
}

/* ===== 价格卡片头部图标 ===== */
.pricing-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.version-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.version-icon-blue { background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%); color: white; }
.version-icon-teal { background: linear-gradient(135deg, #14b8a6 0%, #0d9488 100%); color: white; }
.version-icon-purple { background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%); color: white; }
.version-icon-orange { background: linear-gradient(135deg, #f97316 0%, #ea580c 100%); color: white; }

/* ===== 角色匹配速览 ===== */
.role-matrix {
    margin-top: 72px;
    text-align: center;
}

.matrix-title {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 8px;
    color: var(--text);
}

.matrix-desc {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 36px;
}

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

.matrix-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 20px;
    text-align: center;
    transition: var(--transition);
}

.matrix-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.matrix-role-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.matrix-card h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text);
}

.matrix-card > p {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.matrix-match {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.match-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 600;
}

.match-primary {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
}

.match-secondary {
    background: rgba(139, 92, 246, 0.1);
    color: var(--purple);
}

/* ===== 计费方式（增强） ===== */
.billing-card-visual {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    transition: var(--transition);
}

.billing-card:hover .billing-card-visual {
    background: white;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

/* ===== 社会证明 ===== */
.pricing-proof {
    margin-top: 72px;
    text-align: center;
}

.proof-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 32px;
}

.proof-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.proof-item {
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: left;
    transition: var(--transition);
}

.proof-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.proof-company-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px dashed var(--border);
}

.proof-metrics {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.proof-metric {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

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

.proof-metric span {
    font-size: 14px;
    color: var(--text-secondary);
}

.proof-arrow {
    font-size: 16px;
    font-weight: 700;
    color: var(--green);
    padding: 8px 12px;
    background: rgba(34, 197, 94, 0.08);
    border-radius: 8px;
    display: inline-block;
    align-self: flex-start;
}

/* ===== 定价说明 + 咨询 CTA ===== */
.pricing-cta-wrapper {
    margin-top: 72px;
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.pricing-explain {
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px 40px;
    display: flex;
    align-items: flex-start;
    gap: 24px;
    transition: var(--transition);
}

.pricing-explain:hover {
    border-color: rgba(37, 99, 235, 0.2);
    box-shadow: var(--shadow);
}

.explain-icon {
    width: 64px;
    height: 64px;
    min-width: 64px;
    border-radius: 16px;
    background: rgba(37, 99, 235, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
}

.explain-text h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text);
}

.explain-text p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.explain-text strong {
    color: var(--primary);
}

.pricing-cta-box {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: var(--radius-lg);
    padding: 48px 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    color: white;
    position: relative;
    overflow: hidden;
}

.pricing-cta-box::before {
    content: '';
    position: absolute;
    top: -60%;
    right: -15%;
    width: 350px;
    height: 350px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    pointer-events: none;
}

.pricing-cta-box::after {
    content: '';
    position: absolute;
    bottom: -40%;
    left: -10%;
    width: 250px;
    height: 250px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    pointer-events: none;
}

.pricing-cta-content {
    position: relative;
    z-index: 2;
    flex: 1;
}

.pricing-cta-content h4 {
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 10px;
}

.pricing-cta-content p {
    font-size: 15px;
    opacity: 0.9;
    margin-bottom: 24px;
    max-width: 420px;
    line-height: 1.6;
}

.pricing-cta-content .btn-primary {
    background: white;
    color: var(--primary);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.pricing-cta-content .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.2);
}

.pricing-cta-stats {
    display: flex;
    gap: 32px;
    position: relative;
    z-index: 2;
    flex-shrink: 0;
}

.cta-stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.cta-stat-item strong {
    font-size: 20px;
    font-weight: 800;
    white-space: nowrap;
}

.cta-stat-item span {
    font-size: 13px;
    opacity: 0.85;
    white-space: nowrap;
}

/* 产品版本标签调整 */
.version-tag {
    font-size: 12px;
}

.version-target {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.target-label {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 600;
}

.target-value {
    font-size: 15px;
    color: var(--text);
    font-weight: 500;
}

/* 计费方式 */
.billing-section {
    margin-top: 72px;
    text-align: center;
}

.billing-section h3 {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 12px;
}

.billing-section > p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.billing-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.billing-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 20px;
    transition: var(--transition);
}

.billing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    border-color: var(--primary-light);
}

.billing-icon {
    font-size: 32px;
    margin-bottom: 14px;
}

.billing-card h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text);
}

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

.billing-cta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
}

.billing-cta p {
    font-size: 14px;
    color: var(--text-muted);
}

/* ===== CTA 区域 ===== */
.cta-section {
    padding: 60px 0;
}

.cta-box {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    border-radius: var(--radius-lg);
    padding: 64px;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 400px;
    height: 400px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.cta-box::after {
    content: '';
    position: absolute;
    bottom: -60%;
    left: -10%;
    width: 350px;
    height: 350px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
}

.cta-content {
    position: relative;
    z-index: 2;
}

.cta-content h2 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 18px;
    opacity: 0.95;
    margin-bottom: 32px;
}

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

/* ===== 关于我们 ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-content h2 {
    font-size: 38px;
    font-weight: 800;
    margin-bottom: 20px;
}

.about-content > p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.8;
}

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

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

.value-item strong {
    font-size: 20px;
    color: var(--primary);
    margin-bottom: 4px;
}

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

.about-visual {
    width: 100%;
    height: 360px;
    background: linear-gradient(135deg, #eff6ff 0%, #e0f2fe 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-years {
    text-align: center;
}

.years-number {
    display: block;
    font-size: 80px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.years-text {
    font-size: 18px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===== 页脚 ===== */
.footer {
    background: var(--text);
    color: white;
    padding: 72px 0 32px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand .logo {
    color: white;
    margin-bottom: 16px;
}

.footer-brand > p {
    opacity: 0.8;
    margin-bottom: 20px;
}

.footer-contact p {
    font-size: 14px;
    opacity: 0.7;
    margin-bottom: 8px;
}

/* 电话号码反爬：通过 CSS attr() 拼接显示 */
.phone-anti-scrape .phone-display::after {
    content: attr(data-p1) " " attr(data-p2) " " attr(data-p3);
}
.phone-anti-scrape .phone-display {
    font-variant-numeric: tabular-nums;
}

/* 邮箱反爬：通过 CSS attr() 分段拼接显示，避免源码中直接出现完整邮箱 */
.email-anti-scrape .email-display::after {
    content: attr(data-email-user) "@" attr(data-email-host);
}

/* 微信二维码 */
.footer-wechat {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 16px;
    padding-top: 12px;
    border-top: 1px solid rgba(255,255,255,0.1);
}
.wechat-qr {
    width: 112px;
    height: 112px;
    border-radius: 8px;
    object-fit: cover;
    flex-shrink: 0;
}
.wechat-label {
    font-size: 13px;
    opacity: 0.75;
}

.footer-links h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-links a {
    display: block;
    font-size: 14px;
    opacity: 0.75;
    margin-bottom: 12px;
    transition: var(--transition);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--primary-light);
}

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

.footer-bottom p {
    font-size: 13px;
    opacity: 0.6;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .hero-container,
    .features-grid,
    .pricing-grid,
    .trust-grid,
    .about-grid {
        grid-template-columns: 1fr;
    }

    .hero-visual {
        order: -1;
    }

    .proof-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .billing-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .matrix-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pricing-cta-box {
        flex-direction: column;
        text-align: center;
        padding: 40px 32px;
    }

    .pricing-cta-content p {
        max-width: 100%;
    }

    .pricing-cta-stats {
        gap: 24px;
    }

    .features-grid,
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .solution-card,
    .solution-reverse {
        grid-template-columns: 1fr;
        direction: ltr;
    }

    .solution-points {
        grid-template-columns: 1fr;
    }

    .trust-stats-row {
        gap: 32px;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
        transform: translateY(-150%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .header-actions {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero {
        padding: 120px 0 80px;
    }

    .hero h1 {
        font-size: 36px;
    }

    .hero-stats {
        gap: 24px;
    }

    .features-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .pricing-featured {
        transform: none;
    }

    .section {
        padding: 72px 0;
    }

    .section-header h2,
    .trust-content h2,
    .about-content h2,
    .cta-content h2 {
        font-size: 28px;
    }

    .solution-card {
        padding: 32px 24px;
    }

    .solution-illustration {
        width: 160px;
        height: 160px;
    }

    .cta-box {
        padding: 40px 24px;
    }

    .about-values {
        flex-direction: column;
        gap: 20px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .trust-stats-row {
        flex-direction: column;
        gap: 16px;
    }

    /* 定价模块 - 移动端 */
    .proof-grid {
        grid-template-columns: 1fr;
    }

    .matrix-grid {
        grid-template-columns: 1fr;
    }

    .billing-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .pricing-explain {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 24px 20px;
    }

    .pricing-cta-box {
        flex-direction: column;
        text-align: center;
        padding: 32px 24px;
    }

    .pricing-cta-stats {
        flex-direction: column;
        gap: 16px;
    }

    .pricing-cta-content p {
        max-width: 100%;
    }

    .version-target {
        padding: 12px 14px;
    }
}