/**
 * 配镜大师官网样式 - Microsoft 365 风格升级版
 * 品牌定位：眼镜店AI增长与配镜成交SaaS - 让眼镜店会获客、会成交、会复购
 * 设计理念：专业克制、现代简洁、大量留白、清晰层级
 * 参考风格：Microsoft Fluent Design - 干净、专业、高效
 */

/* ==================== 基础变量 ==================== */
:root {
    /* 主色系 - 配镜大师品牌色 */
    --primary-blue: #3F3CDB;
    --primary-blue-hover: #2e2cb3;
    --primary-blue-light: #EEEEFF;
    --primary-blue-dark: #2e2cb3;

    /* 强调色 - 橙色活力 */
    --accent-orange: #FF5A1F;
    --accent-orange-hover: #E04A10;
    --accent-orange-light: #FFF0EB;

    /* 中性色系 - 灰阶配色 */
    --gray-50: #FAFAFA;
    --gray-100: #F3F3F3;
    --gray-200: #F0F0F0;
    --gray-300: #E5E5E5;
    --gray-400: #D1D1D1;
    --gray-500: #A3A3A3;
    --gray-600: #737373;
    --gray-700: #525252;
    --gray-800: #2D2D2D;
    --gray-900: #1A1A1A;

    /* 功能色 */
    --accent-teal: #3F3CDB;
    --accent-green: #10B981;
    --accent-purple: #3F3CDB;
    --accent-orange: #D83B01;

    /* 文字色 - 清晰层级 */
    --text-primary: #1A1A1A;
    --text-secondary: #525252;
    --text-tertiary: #737373;
    --text-muted: #A3A3A3;

    /* 背景色 - 干净主调 */
    --bg-page: #F9F9F9;
    --bg-card: #FFFFFF;
    --bg-nav: rgba(255, 255, 255, 0.92);
    --bg-section-alt: #FFFFFF;
    --bg-section-dark: #1A1A1A;

    /* 边框色 */
    --border-light: rgba(0, 0, 0, 0.06);
    --border-base: rgba(0, 0, 0, 0.1);
    --border-strong: rgba(0, 0, 0, 0.15);

    /* 圆角 - 统一中等圆角 */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;

    /* 阴影 - 轻量级层次感 */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1), 0 4px 8px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);

    /* 过渡动画 */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.4s ease;
}

/* ==================== 基础样式 ==================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-page);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.website-body {
    position: relative;
}

/* ==================== 导航栏 ==================== */
.website-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 10000;
    padding: 0 24px;
    background: var(--bg-nav);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-light);
    transition: background 0.2s ease, box-shadow 0.2s ease;
}

.website-nav.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    height: 60px;
    position: relative;
}

/* Logo */
.nav-logo .logo-link {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.logo-img {
    height: 36px;
    width: auto;
    border-radius: var(--radius-sm);
    object-fit: contain;
}

.logo-symbol {
    height: 66px;
    width: 66px;
    background: #2563EB;
}


.logo-text {
    font-size: 20px;
    font-weight: 900;
    color: #0C0D2B;
    letter-spacing: -0.5px;
}

/* 导航链接 */
.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
    padding: 8px 14px;
    white-space: nowrap;
    border-radius: var(--radius-sm);
    font-weight: 500;
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--gray-100);
}

.nav-link.active {
    color: var(--primary-blue);
    font-weight: 600;
}

/* Nav item hover 触发器 */
.nav-item-hover {
    position: relative;
}

.nav-item-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    color: var(--text-secondary);
}

.nav-item-btn.active {
    color: var(--primary-blue);
    font-weight: 600;
}

.nav-arrow-icon {
    font-size: 10px;
    transition: transform 0.2s;
}

.nav-item-btn.active .nav-arrow-icon {
    transform: rotate(180deg);
}

/* Mega Menu 全宽下拉面板 */
.mega-menu {
    display: none;
    position: absolute;
    top: calc(100% - 1px);
    left: 0;
    right: 0;
    background: #fff;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
    z-index: 999;
    border-radius: var(--radius-lg);
    overflow: hidden;
    animation: megaMenuIn 0.2s ease;
}

@keyframes megaMenuIn {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.mega-menu-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    min-height: 380px;
}

/* Mega Menu 左侧导航 */
.mega-menu-left {
    width: 220px;
    flex-shrink: 0;
    background: var(--gray-50);
    border-right: 1px solid var(--border-light);
    padding: 12px 8px;
    display: flex;
    flex-direction: column;
}

.mega-nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    cursor: pointer;
    transition: all 0.15s;
    position: relative;
    text-decoration: none;
    border-radius: var(--radius-md);
}

.mega-nav-item:hover {
    background: rgba(63, 60, 219, 0.06);
}

.mega-nav-item.active {
    background: rgba(0,120,212,0.12);
    border-radius: 8px;
}

.mega-nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 24px;
    background: var(--primary-blue);
    border-radius: 0 2px 2px 0;
}

.mega-nav-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
    background: #fff;
    box-shadow: var(--shadow-xs);
}

.mega-nav-info {
    flex: 1;
    min-width: 0;
}

.mega-nav-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.3;
}

.mega-nav-item.active .mega-nav-name {
    color: #005A9E;
    font-weight: 700;
}

.mega-nav-desc {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
    line-height: 1.3;
}

/* Mega Menu 右侧内容区 */
.mega-menu-right {
    flex: 1;
    position: relative;
    overflow: hidden;
}

.mega-content-item {
    position: absolute;
    inset: 0;
    padding: 20px 24px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    overflow-y: auto;
}

.mega-content-item.active {
    opacity: 1;
    pointer-events: auto;
}

/* Section Header */
.mega-section-header {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 18px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-light);
}

.mega-section-emoji {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: var(--primary-blue-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.mega-section-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
    margin-bottom: 4px;
}

.mega-section-sub {
    font-size: 12px;
    color: var(--text-tertiary);
    line-height: 1.5;
}

/* Section Grid */
.mega-section-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.mega-card {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 14px;
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: all 0.15s;
    border: 1px solid transparent;
}

.mega-card:hover {
    background: var(--primary-blue-light);
    border-color: rgba(63, 60, 219, 0.1);
}

.mega-card-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    flex-shrink: 0;
    box-shadow: var(--shadow-xs);
}

.mega-card-body {
    flex: 1;
    min-width: 0;
}

.mega-card-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.3;
    margin-bottom: 2px;
}

.mega-card-text {
    font-size: 11px;
    color: var(--text-muted);
    line-height: 1.3;
}

/* Section Footer CTA */
.mega-section-footer {
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid var(--border-light);
}

.mega-cta {
    display: inline-flex;
    align-items: center;
    padding: 10px 20px;
    border-radius: var(--radius-md);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    background: var(--primary-blue);
}

.mega-cta:hover {
    background: var(--primary-blue-hover);
    color: #fff;
}

/* 响应式：移动端隐藏Mega菜单 */
@media (max-width: 900px) {
    .mega-menu { display: none !important; }
}

/* ==================== 导航按钮 ==================== */
.nav-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

.nav-cta {
    background: var(--primary-blue);
    color: #fff;
    padding: 8px 18px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 13px;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.nav-cta:hover {
    background: var(--primary-blue-hover);
    color: #fff;
}

.nav-login {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 13px;
    padding: 8px 14px;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-login:hover {
    color: var(--text-primary);
    background: var(--gray-100);
}

/* 移动端菜单 */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    width: 44px;
    height: 44px;
    cursor: pointer;
    position: relative;
    padding: 10px;
    border-radius: 8px;
    transition: background var(--transition-fast);
}

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

.toggle-icon {
    position: relative;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    margin: 10px auto;
}

.toggle-icon::before,
.toggle-icon::after {
    content: '';
    position: absolute;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    left: 0;
    transition: all var(--transition-fast);
}

.toggle-icon::before { top: -7px; }
.toggle-icon::after { bottom: -7px; }

/* 汉堡按钮激活状态 - 变叉号 */
.nav-toggle.active .toggle-icon {
    background: transparent;
}

.nav-toggle.active .toggle-icon::before {
    top: 0;
    transform: rotate(45deg);
}

.nav-toggle.active .toggle-icon::after {
    bottom: 0;
    transform: rotate(-45deg);
}

.nav-mobile {
    position: fixed !important;
    top: 64px !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    background: #ffffff !important;
    padding: 0;
    z-index: 9999 !important;
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateX(100%);
    transition: transform 0.2s ease-out, opacity 0.2s ease-out, visibility 0.2s;
}

.nav-mobile.active {
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
    display: block !important;
    transform: translateX(0);
}

.mobile-links {
    display: flex;
    flex-direction: column;
    padding: 16px 24px;
}

.mobile-link {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 17px;
    font-weight: 500;
    padding: 18px 0;
    border-bottom: 1px solid var(--border-light);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.mobile-link:last-child {
    border-bottom: none;
}

.mobile-link::after {
    content: '›';
    font-size: 20px;
    color: var(--text-muted);
    transition: transform var(--transition-fast);
}

.mobile-link:hover,
.mobile-link.active {
    color: var(--primary-orange);
}

.mobile-link:hover::after,
.mobile-link.active::after {
    color: var(--primary-orange);
    transform: translateX(4px);
}

.mobile-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 24px;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
}

.mobile-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-orange);
    color: #fff;
    padding: 16px 20px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    transition: all var(--transition-normal);
}

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

.mobile-login {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    padding: 16px 20px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: #fff;
    transition: all var(--transition-fast);
}

.mobile-login:hover {
    background: var(--bg-tertiary);
    border-color: var(--text-muted);
}

/* ==================== Hero 区域 ==================== */
.hero-section {
    position: relative;
    min-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 120px 24px 80px;
    text-align: center;
    background: linear-gradient(180deg, #fff 0%, var(--gray-50) 100%);
    overflow: hidden;
}

/* Hero装饰背景 - 简约几何 */
.hero-section::before {
    content: '';
    position: absolute;
    top: 15%;
    right: 10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(63, 60, 219, 0.06) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-section::after {
    content: '';
    position: absolute;
    bottom: 10%;
    left: 5%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255, 90, 31, 0.05) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-content {
    max-width: 720px;
    z-index: 10;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary-blue-light);
    border: 1px solid rgba(63, 60, 219, 0.15);
    padding: 8px 16px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--primary-blue);
}

.hero-title {
    font-size: clamp(40px, 5vw, 56px);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.hero-title .highlight {
    color: var(--primary-blue);
    font-weight: 700;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.7;
    max-width: 580px;
    margin-left: auto;
    margin-right: auto;
}

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

/* ==================== 按钮 ==================== */
.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    transition: all var(--transition-normal);
    border-radius: var(--radius-md);
    padding: 14px 28px;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--primary-blue);
    color: #fff;
    box-shadow: 0 2px 8px rgba(63, 60, 219, 0.25);
}

.btn-primary:hover {
    background: var(--primary-blue-hover);
    color: #fff;
    box-shadow: 0 4px 12px rgba(63, 60, 219, 0.3);
}

.btn-secondary {
    background: #fff;
    color: var(--text-primary);
    border: 1px solid var(--border-base);
    box-shadow: var(--shadow-xs);
}

.btn-secondary:hover {
    background: var(--gray-50);
    color: var(--text-primary);
    border-color: var(--border-strong);
}

/* ==================== 统计数据 ==================== */
.stats-section {
    padding: 60px 24px;
    background: #fff;
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    max-width: 1000px;
    margin: 0 auto;
}

.stat-card {
    background: var(--gray-50);
    border: none;
    padding: 28px 20px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.stat-card:hover {
    background: var(--primary-blue-light);
}

.stat-label {
    font-size: 13px;
    color: var(--text-tertiary);
    font-weight: 600;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-number {
    font-size: 42px;
    font-weight: 700;
    color: var(--primary-blue);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-unit {
    font-size: 20px;
    font-weight: 600;
}

.stat-desc {
    font-size: 13px;
    color: var(--text-muted);
}

/* ==================== 功能区域 ==================== */
.features-section {
    padding: 80px 24px;
    background: #fff;
}

.ai-features-section {
    padding: 80px 24px;
    background: var(--gray-50);
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 56px;
}

.section-title {
    font-size: clamp(28px, 3vw, 36px);
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.3px;
    color: var(--text-primary);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 48px;
    height: 3px;
    background: var(--primary-blue);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.features-grid,
.ai-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card,
.ai-card {
    background: #fff;
    border: 1px solid var(--border-light);
    padding: 32px;
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    position: relative;
}

.feature-card:hover,
.ai-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--border-base);
}

.feature-icon,
.ai-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.feature-icon {
    background: var(--primary-blue-light);
}

.ai-icon {
    background: var(--gray-100);
}

.feature-title,
.ai-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
    position: relative;
    z-index: 1;
}

.feature-desc,
.ai-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.feature-list,
.ai-features-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    position: relative;
    z-index: 1;
}

.feature-list li {
    background: var(--primary-blue-light);
    border: none;
    padding: 6px 12px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
    color: var(--primary-blue);
}

.ai-features-list li {
    background: var(--gray-100);
    border: none;
    padding: 6px 12px;
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
}

/* 小型功能卡片 */
.function-card {
    background: #fff;
    border: 1px solid var(--border-light);
    padding: 24px;
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
}

.function-card:hover {
    box-shadow: var(--shadow-sm);
    border-color: var(--border-base);
}

.function-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    margin-bottom: 16px;
    font-weight: 700;
    color: var(--primary-blue);
}

.function-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 8px;
}

.function-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ==================== CTA 区域 ==================== */
.cta-section {
    padding: 80px 24px;
    background: var(--primary-blue);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.03)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.03)"/></pattern></defs><rect width="100" height="100" fill="url(#grain)"/></svg>');
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: clamp(28px, 3.5vw, 36px);
    font-weight: 700;
    margin-bottom: 16px;
    color: #fff;
}

.cta-desc {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.7;
    margin-bottom: 32px;
}

.cta-section .hero-actions {
    justify-content: center;
}

.cta-section .btn-primary,
.cta-section .btn-secondary {
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 600;
}

.cta-section .btn-primary {
    background: #fff;
    color: var(--primary-blue);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.cta-section .btn-primary:hover {
    background: var(--gray-100);
    color: var(--primary-blue-hover);
}

.cta-section .btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(4px);
}

.cta-section .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
    color: #fff;
}

/* CTA底部栏 */
.cta-bar {
    padding: 60px 24px;
    background: var(--gray-50);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-bar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-blue);
}

.cta-bar .cta-container {
    max-width: 800px;
    margin: 0 auto;
}

.cta-bar .cta-content {
    margin-bottom: 32px;
}

.cta-bar .cta-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.cta-bar .cta-desc {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
}

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

.cta-bar .cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 15px;
    text-decoration: none;
    transition: all var(--transition-normal);
    border: none;
}

.cta-bar .cta-btn.primary {
    background: var(--primary-blue);
    color: #fff;
    box-shadow: 0 2px 8px rgba(63, 60, 219, 0.25);
}

.cta-bar .cta-btn.primary:hover {
    background: var(--primary-blue-hover);
    color: #fff;
}

.cta-bar .cta-btn.secondary {
    background: #fff;
    color: var(--text-primary);
    border: 1px solid var(--border-base);
}

/* ==================== 页脚 ==================== */
.website-footer {
    padding: 48px 24px 32px;
    background: var(--gray-900);
    color: var(--gray-300);
}

.footer-container {
    max-width: 1100px;
    margin: 0 auto;
}

.footer-main {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 32px;
    margin-bottom: 32px;
}

.footer-title {
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 16px;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-links {
    list-style: none;
    line-height: 2;
}

.footer-links li {
    margin-bottom: 4px;
}

.footer-links a {
    color: var(--gray-500);
    text-decoration: none;
    font-size: 13px;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: #fff;
}

.footer-links .contact-icon {
    margin-right: 6px;
    color: var(--gray-600);
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--gray-800);
    text-align: center;
}

.copyright {
    font-size: 12px;
    color: var(--gray-600);
}

/* ==================== 面包屑 ==================== */
.breadcrumb-nav {
    padding: 16px 24px;
    background: #fff;
}

.breadcrumb-container {
    max-width: 1100px;
    margin: 0 auto;
}

.breadcrumb-list {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

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

.breadcrumb-item a {
    color: var(--text-secondary);
    text-decoration: none;
}

.breadcrumb-item a:hover {
    color: var(--primary-blue);
}

.breadcrumb-item.active {
    color: var(--text-primary);
}

.breadcrumb-item::after {
    content: '/';
    margin-left: 8px;
    color: var(--gray-400);
}

.breadcrumb-item:last-child::after {
    content: '';
}

/* ==================== 页面内容区 ==================== */
.page-content {
    padding: 40px 24px;
    max-width: 1100px;
    margin: 0 auto;
}

.page-header {
    text-align: center;
    margin-bottom: 40px;
}

.page-title {
    font-size: clamp(26px, 3vw, 34px);
    font-weight: 700;
    margin-bottom: 12px;
    letter-spacing: -0.3px;
}

.page-desc {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto;
}

/* ==================== 动画 ==================== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* ==================== 响应式 ==================== */
@media (max-width: 1024px) {
    .hero-section {
        padding: 100px 20px 60px;
    }

    .features-section,
    .ai-features-section,
    .cta-section {
        padding: 60px 20px;
    }

    .nav-links {
        display: none;
    }

    .nav-actions {
        display: none;
    }

    .nav-toggle {
        display: block;
    }

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

    .website-footer {
        padding: 32px 16px;
    }
}

@media (max-width: 768px) {
    /* 首页hero区域在移动端的优化 */
    .hero-section {
        min-height: auto !important;
        padding: 100px 16px 40px !important;
    }

    .hero-title {
        font-size: 28px !important;
    }

    .hero-subtitle {
        font-size: 15px;
    }

    .stats-section,
    .features-section,
    .ai-features-section {
        padding: 40px 16px !important;
    }

    .features-grid,
    .ai-grid,
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .feature-card,
    .ai-card {
        padding: 20px;
    }

    .section-title {
        font-size: 22px;
    }

    .website-footer {
        padding: 24px 16px;
    }

    .footer-main {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .footer-title {
        font-size: 12px;
        margin-bottom: 12px;
    }

    .footer-links li {
        margin-bottom: 4px;
    }

    .footer-links a,
    .footer-links li {
        font-size: 12px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }

    .cta-actions {
        flex-direction: column;
    }

    .cta-btn {
        width: 100%;
        justify-content: center;
    }

    .page-content {
        padding: 24px 16px;
    }

    .nav-actions {
        display: none;
    }

    .nav-toggle {
        display: block;
    }

    .cta-bar {
        padding-bottom: 40px;
    }

    .cta-actions {
        flex-direction: column;
        width: 100%;
    }

    .cta-btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .footer-main {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }

    .nav-actions {
        gap: 8px;
    }

    .nav-cta {
        padding: 8px 16px;
    }

    .hero-section {
        padding-top: 80px;
        padding-bottom: 40px;
    }

    .hero-title {
        font-size: 26px;
    }
}
/* ==================== 解决方案展示区 ==================== */
.solutions-section {
    padding: 80px 24px;
    background: #fff;
}

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

.solutions-header {
    text-align: center;
    margin-bottom: 48px;
}

.solutions-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--primary-blue-light);
    border: 1px solid rgba(63, 60, 219, 0.1);
    border-radius: 100px;
    margin-bottom: 16px;
}

.solutions-badge-text {
    color: var(--primary-blue);
    font-size: 13px;
    font-weight: 600;
}

.solutions-title {
    font-size: clamp(28px, 3vw, 36px);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.solutions-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

@media (min-width: 1200px) {
    .solutions-grid {
        grid-template-columns: repeat(2, 1fr);
        max-width: 1000px;
        margin: 0 auto;
    }
}

.solution-card {
    padding: 28px;
    border-radius: var(--radius-lg);
    position: relative;
    transition: all var(--transition-normal);
    background: #fff;
    border: 1px solid var(--border-light);
}

.solution-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--border-base);
}

.solution-card.featured {
    background: var(--primary-blue-light);
    border-color: rgba(63, 60, 219, 0.2);
}

.solution-recommend-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--primary-blue);
    color: #fff;
    padding: 6px 12px;
    border-radius: 100px;
    font-size: 11px;
    font-weight: 600;
}

.solution-type-badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 100px;
    font-weight: 600;
    font-size: 12px;
    margin-bottom: 12px;
}

.solution-type-badge.blue {
    background: var(--primary-blue-light);
    color: var(--primary-blue);
}

.solution-type-badge.green {
    background: #E8F5E9;
    color: var(--accent-green);
}

.solution-type-badge.purple {
    background: #F3E5F5;
    color: var(--accent-purple);
}

.solution-type-badge.orange {
    background: rgba(255, 90, 31, 0.1);
    color: #FF5A1F;
}

.solution-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.solution-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.solution-features {
    list-style: none;
    padding: 0;
    margin: 0 0 24px 0;
}

.solution-feature-item {
    padding: 6px 0;
    font-size: 13px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
}

.solution-feature-item::before {
    content: '✓';
    margin-right: 10px;
    color: var(--accent-green);
    font-weight: 700;
}

.solution-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    background: var(--primary-blue);
    color: #fff;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    transition: all var(--transition-fast);
}

.solution-cta:hover {
    background: var(--primary-blue-hover);
    color: #fff;
}

.solution-detail-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
    margin-top: 32px;
}

.solution-detail-card {
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: all var(--transition-normal);
}

.solution-detail-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--border-base);
}

.solution-detail-kicker {
    display: inline-flex;
    align-items: center;
    min-height: 26px;
    padding: 4px 10px;
    border-radius: 100px;
    background: var(--gray-100);
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 700;
    margin-bottom: 12px;
}

.solution-detail-title {
    font-size: 22px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.solution-detail-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.solution-module-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 20px;
}

.solution-module {
    padding: 14px;
    border-radius: var(--radius-md);
    background: var(--gray-50);
    border: 1px solid var(--border-light);
}

.solution-module-name {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.solution-module-text {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.55;
}

.solution-outcome {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.solution-outcome-item {
    min-height: 68px;
    padding: 12px;
    border-radius: var(--radius-md);
    background: var(--primary-blue-light);
}

.solution-outcome-label {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.solution-outcome-value {
    font-size: 13px;
    font-weight: 700;
    color: var(--primary-blue);
    line-height: 1.45;
}

.workflow-strip {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 12px;
    max-width: 1200px;
    margin: 0 auto;
}

.workflow-step {
    position: relative;
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 22px 18px;
}

.workflow-step-number {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--primary-blue);
    color: #fff;
    font-size: 13px;
    font-weight: 800;
    margin-bottom: 14px;
}

.workflow-step-title {
    font-size: 16px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.workflow-step-desc {
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-secondary);
}

@media (max-width: 900px) {
    .solution-detail-grid,
    .solution-module-list,
    .solution-outcome,
    .workflow-strip {
        grid-template-columns: 1fr;
    }
}