/* 重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 移动端优化 */
:root {
    --vh: 1vh;
    /* 统一的精致色彩系统 */
    --primary-blue: #1e3a8a;
    --primary-blue-light: #3b82f6;
    --primary-blue-lighter: #60a5fa;
    --primary-blue-dark: #1e40af;
    --accent-teal: #0f766e;
    --accent-teal-light: #14b8a6;
    --accent-teal-lighter: #5eead4;
    --neutral-gray-50: #f8fafc;
    --neutral-gray-100: #f1f5f9;
    --neutral-gray-200: #e2e8f0;
    --neutral-gray-300: #cbd5e1;
    --neutral-gray-400: #94a3b8;
    --neutral-gray-500: #64748b;
    --neutral-gray-600: #475569;
    --neutral-gray-700: #334155;
    --neutral-gray-800: #1e293b;
    --neutral-gray-900: #0f172a;
    --white: #ffffff;
    --success-green: #059669;
    --success-green-light: #10b981;
    --success-green-lighter: #34d399;
    --warning-orange: #ea580c;
    --warning-orange-light: #fb923c;
    --accent-purple: #7c3aed;
    --accent-purple-light: #a855f7;
    --danger-red: #dc2626;
    --danger-red-light: #ef4444;
    
    /* 统一的颜色定义 */
    --color-primary: #1e3a8a;
    --color-primary-light: #3b82f6;
    --color-primary-dark: #1e1b4b;
    --color-accent: #1e40af;
    --color-text-primary: #1e3a8a;
    --color-bg-subtle: #f8fafc;
    --color-bg-hero: #f1f5f9;
    
    /* 统一的圆角系统 - 有层次感的设计 */
    --radius-none: 0px;
    --radius-xs: 2px;      /* 微小圆角：分割线、边框装饰 */
    --radius-sm: 4px;      /* 小圆角：标签、小按钮、输入框 */
    --radius-md: 8px;      /* 中等圆角：按钮、卡片、表单元素 */
    --radius-lg: 12px;     /* 大圆角：大卡片、模态框、主要容器 */
    --radius-xl: 16px;     /* 超大圆角：英雄区域、特色内容 */
    --radius-2xl: 20px;    /* 巨大圆角：页面主要区域、大图片容器 */
    --radius-3xl: 24px;    /* 超大圆角：特殊装饰、背景元素 */
    --radius-full: 50%;    /* 完全圆形：头像、图标、徽章 */
    
    /* 统一的阴影定义 */
    --shadow-subtle: 0 8px 32px rgba(0, 0, 0, 0.06), 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-medium: 0 12px 40px rgba(0, 0, 0, 0.12), 0 4px 12px rgba(0, 0, 0, 0.06);
    --shadow-strong: 0 25px 60px rgba(0, 0, 0, 0.12), 0 8px 20px rgba(0, 0, 0, 0.08);
    --shadow-primary: 0 8px 32px rgba(30, 58, 138, 0.3), 0 4px 16px rgba(0, 0, 0, 0.1);
    
    /* 统一的背景图案 */
    --bg-pattern: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="unified-pattern" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="20" cy="20" r="1.5" fill="rgba(30,58,138,0.03)"/><circle cx="80" cy="80" r="1" fill="rgba(59,130,246,0.03)"/><circle cx="40" cy="60" r="1.2" fill="rgba(30,58,138,0.02)"/><circle cx="60" cy="40" r="0.8" fill="rgba(59,130,246,0.02)"/><polygon points="10,10 15,15 10,20" fill="rgba(30,58,138,0.015)"/><polygon points="85,85 90,90 85,95" fill="rgba(59,130,246,0.015)"/></pattern></defs><rect width="100" height="100" fill="url(%23unified-pattern)"/></svg>');
    
    /* 毛玻璃效果变量 */
    --glass-bg: rgba(255, 255, 255, 0.15);
    --glass-border: rgba(37, 99, 235, 0.3);
    --glass-shadow: 0 8px 32px rgba(31, 41, 55, 0.1);
    --glass-blur: blur(20px);
    --glass-blur-webkit: blur(20px);
}

html {
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

/* 导航链接激活状态 */
.nav-link.active {
    color: var(--color-primary);
    position: relative;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-primary);
    border-radius: var(--radius-xs);
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.7;
    color: var(--neutral-gray-800);
    font-weight: 400;
    position: relative;
}

/* 半透明网格装饰背景 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(59, 130, 246, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.06) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: -1;
}

/* 第二层网格 - 更细的网格线 */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(59, 130, 246, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 246, 0.04) 1px, transparent 1px);
    background-size: 20px 20px;
    pointer-events: none;
    z-index: -1;
}

/* 动态网格背景样式 */
.dynamic-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.grid-line {
    position: absolute;
    background: rgba(59, 130, 246, 0.04);
    transition: opacity 0.3s ease;
}

.grid-line.horizontal {
    width: 100%;
    height: 1px;
}

.grid-line.vertical {
    width: 1px;
    height: 100%;
}

.grid-line:nth-child(1) { top: 20%; }
.grid-line:nth-child(2) { top: 40%; }
.grid-line:nth-child(3) { top: 60%; }
.grid-line:nth-child(4) { left: 25%; }
.grid-line:nth-child(5) { left: 50%; }
.grid-line:nth-child(6) { left: 75%; }

/* 网格线悬停效果 */
.grid-line:hover {
    opacity: 0.8;
    background: rgba(59, 130, 246, 0.08);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 按钮样式 */
.btn-primary {
    background: var(--color-primary);
    color: var(--white);
    border: none;
    padding: 18px 36px;
    border-radius: var(--radius-md);
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-primary);
    font-size: 17px;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    font-family: 'Poppins', sans-serif;
    min-width: 160px;
    height: 56px;
    z-index: 1;
}



.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(30, 58, 138, 0.3);
    background: var(--color-primary-dark);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur-webkit);
    color: var(--color-primary-dark);
    border: 2px solid var(--glass-border);
    padding: 18px 36px;
    border-radius: var(--radius-lg);
    font-weight: 800;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    font-size: 17px;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    font-family: 'Poppins', sans-serif;
    min-width: 160px;
    height: 56px;
    box-shadow: var(--glass-shadow);
    z-index: 1;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.btn-secondary > * {
    position: relative;
    z-index: 2;
}

/* 为不支持backdrop-filter的浏览器提供降级效果 */
@supports not (backdrop-filter: blur(20px)) {
    .btn-secondary {
        background: rgba(255, 255, 255, 0.9);
        border: 2px solid var(--color-primary);
        box-shadow: 0 4px 16px rgba(37, 99, 235, 0.2);
        color: var(--color-primary);
    }
    
    .btn-secondary:hover {
        background: var(--color-primary);
        border-color: var(--color-primary);
        box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
        color: var(--white);
    }
}

.btn-secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    border-radius: var(--radius-lg);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: 0;
    pointer-events: none;
}

.btn-secondary:hover {
    background: rgba(37, 99, 235, 0.95);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    color: var(--white);
    border-color: var(--color-primary);
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 12px 40px rgba(37, 99, 235, 0.3);
}

.btn-secondary:hover::before {
    opacity: 1;
}

.btn-secondary::after {
    content: '';
    position: absolute;
    top: 1px;
    left: 1px;
    right: 1px;
    bottom: 1px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent);
    border-radius: var(--radius-lg);
    opacity: 0.3;
    transition: opacity 0.3s ease;
    z-index: 0;
    pointer-events: none;
}

.btn-secondary:hover::after {
    opacity: 0.6;
}

.btn-large {
    padding: 18px 36px;
    font-size: 18px;
}

.btn-apply {
    background: var(--color-primary);
    color: var(--white);
    border: none;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    font-size: 14px;
    letter-spacing: 0.2px;
    font-family: 'Poppins', sans-serif;
    box-shadow: var(--shadow-primary);
}

.btn-apply::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
}

.btn-apply:hover::before {
    left: 100%;
}

.btn-apply:hover {
    background: var(--color-primary-dark);
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 8px 25px rgba(30, 58, 138, 0.4);
}

/* 导航栏 */
.navbar {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    box-shadow: var(--shadow-subtle);
    border-bottom: 1px solid rgba(30, 58, 138, 0.08);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar:hover {
    background: rgba(255, 255, 255, 0.99);
    box-shadow: var(--shadow-medium);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo h2 {
    color: var(--color-primary);
    font-weight: 800;
    font-size: 26px;
    position: relative;
    white-space: nowrap;
}

.nav-logo h2::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.nav-logo:hover h2::after {
    transform: scaleX(1);
}

.nav-menu {
    display: flex;
    gap: 32px;
    transition: all 0.3s ease;
    flex-shrink: 0;
    align-items: center;
}

.mobile-auth {
    display: none;
}

.desktop-auth {
    display: flex;
}

.nav-link {
    text-decoration: none;
    color: var(--neutral-gray-800);
    font-weight: 600;
    transition: color 0.3s ease;
    position: relative;
    white-space: nowrap;
    font-size: 15px;
    display: flex;
    align-items: center;
    height: 100%;
    padding: 0 4px;
    line-height: 1;
}

.nav-link:hover {
    color: var(--color-primary);
    transform: translateY(-1px);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.nav-link:hover::after {
    transform: scaleX(1);
}

.nav-auth {
    display: flex;
    gap: 12px;
    align-items: center;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    z-index: 1001;
    padding: 8px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--neutral-gray-800);
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section 专业沉稳设计 */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
}

/* 简洁背景 */
.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.hero-bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-pattern);
    opacity: 0.03;
}

.hero-floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.floating-element {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
}

.element-1 {
    width: 80px;
    height: 80px;
    top: 20%;
    left: 10%;
}

.element-2 {
    width: 120px;
    height: 120px;
    top: 60%;
    right: 15%;
}

.element-3 {
    width: 60px;
    height: 60px;
    top: 80%;
    left: 20%;
}

.element-4 {
    width: 100px;
    height: 100px;
    top: 30%;
    right: 30%;
}

.element-5 {
    width: 40px;
    height: 40px;
    top: 70%;
    left: 60%;
}

.hero-gradient-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(30, 58, 138, 0.95) 0%, 
        rgba(15, 23, 42, 0.9) 100%);
}

/* Hero 容器 */
.hero-container {
    position: relative;
    z-index: 2;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    min-height: 100vh;
}

/* Hero 内容 */
.hero-content {
    color: var(--white);
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
}

.hero-badge i {
    color: var(--white);
    font-size: 16px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    display: flex;
    flex-direction: column;
}

.hero-title-line {
    color: var(--white);
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.hero-title-highlight {
    color: var(--accent-teal-lighter);
    font-size: 3rem;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    font-weight: 900;
}

.hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.6;
    margin-bottom: 40px;
    max-width: 500px;
    color: var(--neutral-gray-200);
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
    font-weight: 400;
}



/* Hero 按钮 */
.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
}

.btn-glow {
    position: relative;
    overflow: hidden;
    background: var(--white);
    color: var(--primary-blue);
    border: none;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}



.hero-buttons .btn-primary,
.hero-buttons .btn-secondary {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 12px;
    transition: all 0.3s ease;
}

/* 首页Browse Jobs按钮文字颜色优化 */
.hero-buttons .btn-secondary {
    color: var(--white);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* Hero 特性 */
.hero-features {
    display: flex;
    gap: 24px;
    margin-bottom: 32px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    opacity: 0.9;
}

.feature-item i {
    color: var(--accent-teal-lighter);
    font-size: 16px;
}

.hero-note {
    font-size: 14px;
    opacity: 0.8;
}

.employer-link {
    color: var(--accent-teal-lighter);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.employer-link:hover {
    color: var(--white);
}

/* Hero 视觉部分 */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image-container {
    position: relative;
    width: 700px;
    height: 500px;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-strong);
}

.hero-image {
    width: 100%;
    height: 100%;
    position: relative;
}

.hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.hero-image:hover img {
    transform: scale(1.05);
}

.hero-image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(30, 58, 138, 0.3) 0%, 
        rgba(15, 118, 110, 0.2) 100%);
}

/* 浮动卡片 */
.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-xl);
    padding: 16px;
    box-shadow: var(--shadow-medium);
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 200px;
    animation: cardFloat 4s ease-in-out infinite;
}

.card-1 {
    top: -60px;
    left: -80px;
    animation-delay: 0s;
}

.card-2 {
    top: 50%;
    right: -100px;
    animation-delay: 2s;
}

.card-3 {
    bottom: -40px;
    left: 20px;
    animation-delay: 4s;
}

.card-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--white);
}

.card-1 .card-icon {
    background: linear-gradient(45deg, var(--primary-blue-light), var(--primary-blue));
}

.card-2 .card-icon {
    background: linear-gradient(45deg, var(--accent-teal-light), var(--accent-teal));
}

.card-3 .card-icon {
    background: linear-gradient(45deg, var(--accent-purple), var(--accent-purple-light));
}

.card-content {
    flex: 1;
}

.card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--neutral-gray-800);
    margin-bottom: 2px;
}

.card-company {
    font-size: 12px;
    color: var(--neutral-gray-600);
    margin-bottom: 4px;
}

.card-salary {
    font-size: 12px;
    font-weight: 600;
    color: var(--success-green);
}

/* 滚动指示器 */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    text-align: center;
    color: var(--white);
    opacity: 0.8;
}

.scroll-text {
    font-size: 14px;
    margin-bottom: 8px;
    font-weight: 500;
}

.scroll-arrow {
    animation: scrollBounce 2s ease-in-out infinite;
}

.scroll-arrow i {
    font-size: 20px;
    color: var(--accent-teal-lighter);
}

/* 动画定义 */
@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

@keyframes patternFloat {
    0%, 100% { transform: translateX(0px) translateY(0px); }
    50% { transform: translateX(-10px) translateY(-10px); }
}

@keyframes badgeGlow {
    0%, 100% { box-shadow: 0 0 20px rgba(255, 255, 255, 0.1); }
    50% { box-shadow: 0 0 30px rgba(255, 255, 255, 0.2); }
}

@keyframes buttonGlow {
    0%, 100% { box-shadow: 0 8px 32px rgba(20, 184, 166, 0.4); }
    50% { box-shadow: 0 12px 40px rgba(20, 184, 166, 0.6); }
}

@keyframes cardFloat {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(2deg); }
}

@keyframes scrollBounce {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .nav-container {
        padding: 0 16px;
    }
    
    .nav-logo h2 {
        font-size: 24px;
    }
    
    .nav-menu {
        gap: 20px;
    }
    
    .nav-link {
        font-size: 14px;
        white-space: nowrap;
        display: flex;
        align-items: center;
        height: 100%;
        padding: 0 4px;
        line-height: 1;
    }
    
    .nav-auth {
        gap: 8px;
    }
    
    .nav-auth .btn-primary,
    .nav-auth .btn-secondary {
        padding: 12px 18px;
        font-size: 14px;
        min-width: 110px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 60px;
        text-align: center;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-features {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .floating-card {
        display: none;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-title-highlight {
        font-size: 2rem;
        color: var(--accent-teal-lighter);
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
        color: var(--neutral-gray-200);
    }
    

    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-buttons .btn-primary,
    .hero-buttons .btn-secondary {
        width: 100%;
        max-width: 300px;
    }
    
    /* 平板端白色按钮优化 */
    .btn-secondary {
        background: rgba(255, 255, 255, 0.25);
        color: var(--color-primary-dark);
        font-weight: 800;
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    }
    
    .hero-image-container {
        width: 300px;
        height: 400px;
    }
    
    /* 平板端滚动指示器优化 */
    .scroll-indicator {
        bottom: 30px;
        padding: 0 30px;
    }
    
    .scroll-text {
        font-size: 13px;
        margin-bottom: 10px;
    }
    
    .scroll-arrow i {
        font-size: 19px;
    }
    
    /* 平板端hero-note底部间距优化，避免与滚动指示器重叠 */
    .hero-note {
        margin-bottom: 90px;
    }
    
    /* 平板端网格背景优化 */
    body::before {
        background-size: 60px 60px;
    }
    
    body::after {
        background-size: 30px 60px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-title-highlight {
        font-size: 1.8rem;
        color: var(--accent-teal-lighter);
    }
    

    
    .hero-features {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }
    
    /* 移动端白色按钮优化 */
    .btn-secondary {
        background: rgba(255, 255, 255, 0.3);
        color: var(--color-primary-dark);
        font-weight: 800;
        text-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
        border: 2px solid rgba(30, 27, 75, 0.3);
    }
    
    .hero-image-container {
        width: 250px;
        height: 350px;
    }
    
    /* 移动端网格背景优化 */
    body::before {
        background-size: 80px 80px;
    }
    
    body::after {
        background-size: 40px 40px;
    }
    
    /* 移动端滚动指示器优化 */
    .scroll-indicator {
        bottom: 20px;
        padding: 0 20px;
    }
    
    .scroll-text {
        font-size: 12px;
        margin-bottom: 12px;
        line-height: 1.4;
    }
    
    .scroll-arrow {
        margin-top: 4px;
    }
    
    .scroll-arrow i {
        font-size: 18px;
    }
    
    /* 移动端hero-note底部间距优化，避免与滚动指示器重叠 */
    .hero-note {
        margin-bottom: 80px;
    }
}

/* 超小屏幕优化 */
@media (max-width: 360px) {
    .scroll-indicator {
        bottom: 15px;
        padding: 0 15px;
    }
    
    .scroll-text {
        font-size: 11px;
        margin-bottom: 8px;
    }
    
    .scroll-arrow i {
        font-size: 16px;
    }
    
    /* 超小屏幕hero-note底部间距优化，避免与滚动指示器重叠 */
    .hero-note {
        margin-bottom: 70px;
    }
}

/* 职位部分 */
.jobs-section {
    padding: 80px 0;
    background: var(--white);
}

/* Section Header 全新设计 */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 60px;
    gap: 40px;
}

.section-header-content {
    flex: 1;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--primary-blue);
    color: var(--white);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
}

.section-badge i {
    font-size: 16px;
}

.section-header h2 {
    font-size: 3rem;
    font-weight: 800;
    color: var(--neutral-gray-900);
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--neutral-gray-600);
    line-height: 1.6;
    max-width: 500px;
}

.section-actions {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 20px;
}

.jobs-stats {
    text-align: right;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-blue);
    line-height: 1;
}

.stat-label {
    font-size: 14px;
    color: var(--neutral-gray-500);
    font-weight: 500;
}

.view-all {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    padding: 12px 24px;
    border: 2px solid var(--primary-blue);
    border-radius: 12px;
    transition: all 0.3s ease;
    background: var(--white);
}

.view-all:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-1px);
    box-shadow: var(--shadow-subtle);
}

.view-all i {
    transition: transform 0.3s ease;
}

.view-all:hover i {
    transform: translateX(4px);
}

/* 动画定义 */

/* 响应式设计 */
@media (max-width: 768px) {
    .section-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 30px;
    }
    
    .section-header h2 {
        font-size: 2.5rem;
    }
    
    .section-actions {
        align-items: center;
    }
    
    .stat {
        align-items: center;
    }
}

@media (max-width: 480px) {
    .section-header h2 {
        font-size: 2rem;
    }
    
    .section-header p {
        font-size: 1rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
}

.view-all {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    position: relative;
    transition: all 0.3s ease;
}

.view-all::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.view-all:hover::after {
    transform: scaleX(1);
}

.view-all:hover {
    color: var(--color-primary-light);
    transform: translateX(5px);
}

.jobs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 24px;
}

/* 简化的工作卡片设计 */
.job-card {
    background: var(--white);
    border: 1px solid var(--neutral-gray-200);
    border-radius: var(--radius-md);
    padding: 0;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.job-card:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

/* 内部内容容器 */
.job-card-content {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 24px;
    position: relative;
    z-index: 1;
    height: 100%;
    display: flex;
    flex-direction: column;
}

/* 差异化设计 - 简单的左侧边框 */
.job-card:nth-child(1) {
    border-left: 3px solid var(--color-primary);
}

.job-card:nth-child(2) {
    border-left: 3px solid var(--color-accent);
}

.job-card:nth-child(3) {
    border-left: 3px solid var(--warning-orange);
}

.job-card:nth-child(4) {
    border-left: 3px solid var(--success-green);
}

.job-card:nth-child(5) {
    border-left: 3px solid var(--color-accent);
}

.job-card:nth-child(6) {
    border-left: 3px solid var(--danger-red);
}

/* 热标签 - 简化 */
.job-hot-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--success-green);
    color: var(--white);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
}

/* 职位类型图标 - 简化 */
.job-type-icon {
    position: absolute;
    top: 16px;
    left: 16px;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 14px;
    background: var(--neutral-gray-600);
}

/* 差异化图标颜色 */
.job-card:nth-child(1) .job-type-icon {
    background: var(--color-primary);
}

.job-card:nth-child(2) .job-type-icon {
    background: var(--color-accent);
}

.job-card:nth-child(3) .job-type-icon {
    background: var(--warning-orange);
}

.job-card:nth-child(4) .job-type-icon {
    background: var(--success-green);
}

.job-card:nth-child(5) .job-type-icon {
    background: var(--color-accent);
}

.job-card:nth-child(6) .job-type-icon {
    background: var(--danger-red);
}

/* 重新设计的头部 */
.job-header {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin: 40px 0 20px 0;
    position: relative;
}

.company-logo {
    position: relative;
}

.company-logo img {
    width: 56px;
    height: 56px;
    border-radius: 8px;
    object-fit: cover;
    border: 1px solid var(--neutral-gray-200);
}

.job-info {
    flex: 1;
}

/* 岗位名称 - 重点强调 */
.job-info h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--neutral-gray-900);
    margin-bottom: 8px;
    line-height: 1.3;
    letter-spacing: -0.02em;
}

.company {
    color: var(--neutral-gray-600);
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 6px;
}

.job-location {
    color: var(--neutral-gray-500);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.job-location i {
    font-size: 12px;
    color: var(--color-accent);
}

/* 薪资信息 - 重点强调 */
.job-details {
    margin: 20px 0;
    padding: 20px;
    background: var(--neutral-gray-50);
    border-radius: 8px;
    border: 1px solid var(--neutral-gray-200);
}

.salary {
    font-weight: 700;
    color: var(--success-green);
    margin-bottom: 16px;
    font-size: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    letter-spacing: -0.01em;
}

.salary i {
    font-size: 16px;
    color: var(--success-green);
}

/* 标签 - 增大字体 */
.tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 12px;
}

.tag {
    background: var(--white);
    color: var(--neutral-gray-700);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    border: 1px solid var(--neutral-gray-300);
}

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

/* 按钮 - 增大字体 */
.job-card .btn-apply {
    margin-top: auto;
    background: var(--color-primary);
    color: var(--white);
    border: none;
    padding: 14px 20px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    text-transform: uppercase;
    margin-top: 20px;
    letter-spacing: 0.5px;
}

.job-card .btn-apply:hover {
    background: var(--color-primary-dark);
    transform: translateY(-1px);
}

/* 悬浮效果增强 */
.job-card:hover {
    transform: translateY(-8px) rotateX(2deg) rotateY(2deg);
    box-shadow: 
        0 20px 50px rgba(0, 0, 0, 0.12),
        0 8px 24px rgba(0, 0, 0, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

/* 分类部分 */
.categories-section {
    padding: 120px 0;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    position: relative;
    overflow: hidden;
}

.categories-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(139, 92, 246, 0.02) 0%, transparent 50%);
    pointer-events: none;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
    margin-top: 60px;
}

.category-card {
    background: var(--white);
    border: 1px solid var(--neutral-gray-200);
    border-radius: 8px;
    padding: 24px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.category-card:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    border-color: var(--primary-blue);
}

.category-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
}

.category-icon {
    width: 48px;
    height: 48px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-blue);
    color: white;
    font-size: 18px;
    transition: all 0.3s ease;
}

.category-card:nth-child(1) .category-icon {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
}

.category-card:nth-child(2) .category-icon {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
}

.category-card:nth-child(3) .category-icon {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.category-card:nth-child(4) .category-icon {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.category-card:nth-child(5) .category-icon {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

.category-card:nth-child(6) .category-icon {
    background: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
}

.category-card:hover .category-icon {
    transform: scale(1.05);
}

.category-stats {
    text-align: right;
}

.job-count {
    display: block;
    font-size: 24px;
    font-weight: 800;
    color: #1f2937;
    line-height: 1;
}

.stat-label {
    font-size: 12px;
    color: #6b7280;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.category-content {
    margin-bottom: 20px;
}

.category-content h3 {
    font-size: 20px;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 8px;
    line-height: 1.3;
}

.category-content p {
    color: #6b7280;
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 16px;
}

.category-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.category-tags .tag {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    border: 1px solid rgba(59, 130, 246, 0.2);
    transition: all 0.2s ease;
}

.category-card:nth-child(1) .category-tags .tag {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
    border-color: rgba(59, 130, 246, 0.2);
}

.category-card:nth-child(2) .category-tags .tag {
    background: rgba(139, 92, 246, 0.1);
    color: #8b5cf6;
    border-color: rgba(139, 92, 246, 0.2);
}

.category-card:nth-child(3) .category-tags .tag {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
    border-color: rgba(16, 185, 129, 0.2);
}

.category-card:nth-child(4) .category-tags .tag {
    background: rgba(245, 158, 11, 0.1);
    color: #f59e0b;
    border-color: rgba(245, 158, 11, 0.2);
}

.category-card:nth-child(5) .category-tags .tag {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border-color: rgba(239, 68, 68, 0.2);
}

.category-card:nth-child(6) .category-tags .tag {
    background: rgba(6, 182, 212, 0.1);
    color: #06b6d4;
    border-color: rgba(6, 182, 212, 0.2);
}

.category-footer {
    border-top: 1px solid var(--neutral-gray-200);
    padding-top: 16px;
}

.category-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.3s ease;
    padding: 8px 12px;
    border-radius: 6px;
    background: rgba(59, 130, 246, 0.05);
    border: 1px solid rgba(59, 130, 246, 0.1);
}

.category-card:nth-child(1) .category-link {
    color: #3b82f6;
    background: rgba(59, 130, 246, 0.05);
    border-color: rgba(59, 130, 246, 0.1);
}

.category-card:nth-child(2) .category-link {
    color: #8b5cf6;
    background: rgba(139, 92, 246, 0.05);
    border-color: rgba(139, 92, 246, 0.1);
}

.category-card:nth-child(3) .category-link {
    color: #10b981;
    background: rgba(16, 185, 129, 0.05);
    border-color: rgba(16, 185, 129, 0.1);
}

.category-card:nth-child(4) .category-link {
    color: #f59e0b;
    background: rgba(245, 158, 11, 0.05);
    border-color: rgba(245, 158, 11, 0.1);
}

.category-card:nth-child(5) .category-link {
    color: #ef4444;
    background: rgba(239, 68, 68, 0.05);
    border-color: rgba(239, 68, 68, 0.1);
}

.category-card:nth-child(6) .category-link {
    color: #06b6d4;
    background: rgba(6, 182, 212, 0.05);
    border-color: rgba(6, 182, 212, 0.1);
}

.category-link:hover {
    transform: translateX(2px);
    background: rgba(59, 130, 246, 0.1);
}

.category-link i {
    transition: transform 0.3s ease;
}

.category-link:hover i {
    transform: translateX(4px);
}

.category-bg-pattern {
    display: none;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .categories-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 24px;
        margin-top: 40px;
    }
    
    .category-card {
        padding: 20px;
    }
    
    .category-header {
        margin-bottom: 20px;
    }
    
    .category-icon {
        width: 56px;
        height: 56px;
        font-size: 20px;
    }
    
    .job-count {
        font-size: 20px;
    }
    
    .category-content h3 {
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .categories-section {
        padding: 80px 0;
    }
    
    .categories-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .category-card {
        padding: 20px;
    }
    
    .category-icon {
        width: 48px;
        height: 48px;
        font-size: 18px;
    }
    
    .job-count {
        font-size: 18px;
    }
    
    .category-content h3 {
        font-size: 16px;
    }
    
    .category-tags {
        gap: 6px;
    }
    
    .category-tags .tag {
        font-size: 11px;
        padding: 3px 10px;
    }
}

/* AI Interview Section 专业设计 */
.ai-interview-section {
    padding: 120px 0;
    background: var(--neutral-gray-50);
    position: relative;
}

/* 简洁背景 */
.ai-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.ai-bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-pattern);
    opacity: 0.02;
}

.ai-floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.ai-element {
    position: absolute;
    border-radius: 50%;
    background: var(--primary-blue);
    opacity: 0.05;
}

.ai-element.element-1 {
    width: 100px;
    height: 100px;
    top: 20%;
    right: 10%;
}

.ai-element.element-2 {
    width: 60px;
    height: 60px;
    top: 60%;
    left: 15%;
}

.ai-element.element-3 {
    width: 80px;
    height: 80px;
    bottom: 20%;
    right: 30%;
}

.ai-content {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

/* AI 文本内容 */
.ai-text {
    color: var(--neutral-gray-800);
}

.ai-highlight {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--primary-blue);
    color: var(--white);
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 40px;
    box-shadow: var(--shadow-subtle);
}

.highlight-icon {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.highlight-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.highlight-content p {
    font-size: 14px;
    opacity: 0.9;
}

.ai-features {
    margin-bottom: 40px;
}

.ai-features .feature {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
    padding: 20px;
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow-subtle);
    transition: all 0.3s ease;
    border: 1px solid var(--neutral-gray-200);
}

.ai-features .feature:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
    border-color: var(--primary-blue);
}

.feature-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-blue);
    color: var(--white);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.feature-content h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--neutral-gray-800);
    margin-bottom: 8px;
}

.feature-content p {
    font-size: 14px;
    color: var(--neutral-gray-600);
    line-height: 1.5;
}

/* AI CTA */
.ai-cta {
    display: flex;
    align-items: center;
    gap: 40px;
}

.ai-stats {
    display: flex;
    gap: 30px;
}

.ai-stat {
    text-align: center;
}

.ai-stat .stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    display: block;
}

.ai-stat .stat-label {
    font-size: 12px;
    color: var(--neutral-gray-500);
    font-weight: 500;
}

/* AI 视觉部分 */
.ai-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.ai-interface {
    background: var(--white);
    border-radius: 20px;
    padding: 30px;
    box-shadow: var(--shadow-strong);
    border: 1px solid var(--neutral-gray-200);
    max-width: 400px;
    width: 100%;
}

.ai-avatar {
    text-align: center;
    margin-bottom: 20px;
}

.avatar-container {
    display: inline-block;
    position: relative;
}

.avatar-image {
    width: 80px;
    height: 80px;
    background: var(--primary-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--white);
    margin: 0 auto 8px;
}

.avatar-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 12px;
    color: var(--success-green);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--success-green);
    border-radius: 50%;
    animation: statusPulse 2s ease-in-out infinite;
}

.ai-chat {
    margin-bottom: 20px;
}

.chat-message {
    margin-bottom: 16px;
    display: flex;
    flex-direction: column;
}

.ai-message {
    align-items: flex-start;
}

.user-message {
    align-items: flex-end;
}

.message-content {
    max-width: 80%;
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 14px;
    line-height: 1.4;
}

.ai-message .message-content {
    background: var(--neutral-gray-100);
    color: var(--neutral-gray-800);
}

.user-message .message-content {
    background: var(--primary-blue);
    color: var(--white);
}

.message-time {
    font-size: 11px;
    color: var(--neutral-gray-500);
    margin-top: 4px;
    padding: 0 4px;
}

.ai-controls {
    display: flex;
    justify-content: center;
    gap: 12px;
}

.control-button {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--neutral-gray-100);
    border: 1px solid var(--neutral-gray-200);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--neutral-gray-600);
    cursor: pointer;
    transition: all 0.3s ease;
}

.control-button:hover,
.control-button.active {
    background: var(--primary-blue);
    color: var(--white);
    border-color: var(--primary-blue);
}

/* 反馈卡片 */
.feedback-card {
    position: absolute;
    top: -40px;
    right: -60px;
    background: var(--white);
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--shadow-medium);
    border: 1px solid var(--neutral-gray-200);
    min-width: 200px;
}

.feedback-header {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
    color: var(--neutral-gray-700);
    margin-bottom: 16px;
}

.feedback-header i {
    color: var(--primary-blue);
}

.feedback-score {
    text-align: center;
    margin-bottom: 16px;
}

.score-circle {
    display: inline-flex;
    align-items: baseline;
    gap: 2px;
}

.score-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--success-green);
}

.score-label {
    font-size: 1rem;
    color: var(--neutral-gray-500);
}

.feedback-details {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.score-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.item-label {
    font-size: 12px;
    color: var(--neutral-gray-600);
    font-weight: 500;
}

.score-bar {
    height: 6px;
    background: var(--neutral-gray-200);
    border-radius: 3px;
    overflow: hidden;
}

.score-fill {
    height: 100%;
    background: var(--success-green);
    border-radius: 3px;
    transition: width 0.3s ease;
}

/* 动画定义 */
@keyframes statusPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.1); }
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .ai-content {
        grid-template-columns: 1fr;
        gap: 60px;
        text-align: center;
    }
    
    .ai-visual {
        order: -1;
    }
    
    .ai-cta {
        flex-direction: column;
        align-items: center;
        gap: 30px;
    }
    
    .ai-interface {
        padding: 25px;
        min-height: 350px;
    }
    
    .ai-visual {
        flex-direction: column;
        gap: 30px;
    }
    
    .feedback-card {
        position: static;
        top: 0;
        right: 0;
        margin-top: 20px;
        max-width: 350px;
        margin-left: auto;
        margin-right: auto;
    }
}

@media (max-width: 768px) {
    /* 移动端装饰元素优化 */
    .decorative-shapes {
        display: none;
    }
    
    .decorative-lines {
        display: none;
    }
    
    .light-dots {
        display: none;
    }
    
    .floating-particles .particle {
        width: 3px;
        height: 3px;
    }
    
    .ai-highlight {
        flex-direction: column;
        text-align: center;
    }
    
    .ai-features .feature {
        flex-direction: column;
        text-align: center;
    }
    
    .feature-icon {
        align-self: center;
    }
    
    .ai-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .ai-visual {
        flex-direction: column;
        gap: 20px;
    }
    
    .ai-interface {
        padding: 30px 25px;
        max-width: 100%;
        min-height: 400px;
        font-size: 16px;
    }
    
    .ai-interface .chat-messages {
        gap: 20px;
    }
    
    .ai-interface .message {
        padding: 16px 20px;
        font-size: 16px;
        line-height: 1.5;
    }
    
    .ai-interface .input-area {
        padding: 20px;
        gap: 15px;
    }
    
    .ai-interface .input-area input {
        padding: 15px 20px;
        font-size: 16px;
    }
    
    .ai-interface .input-area button {
        padding: 15px 25px;
        font-size: 16px;
    }
    
    .feedback-card {
        position: static;
        min-width: auto;
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
        transform: none;
    }
}

/* Articles Section */
.articles-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--neutral-gray-50) 0%, var(--white) 100%);
    position: relative;
    border-top: 1px solid var(--neutral-gray-200);
}

.articles-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-pattern);
    opacity: 0.1;
    pointer-events: none;
}

.articles-section .section-header {
    text-align: center;
    margin-bottom: 60px;
}

.articles-section .section-header h2 {
    font-size: 42px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 16px;
    line-height: 1.2;
}

.articles-section .section-header p {
    font-size: 18px;
    color: var(--neutral-gray-600);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 32px;
    margin-bottom: 48px;
}

.article-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-subtle);
    transition: all 0.3s ease;
    position: relative;
}

.article-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-medium);
}

.article-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    position: relative;
}

.article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.article-card:hover .article-image img {
    transform: scale(1.05);
}

.article-content {
    padding: 24px;
}

.article-category {
    display: inline-block;
    background: var(--color-accent);
    color: var(--white);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
}

.article-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--neutral-gray-800);
    margin-bottom: 12px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-content p {
    color: var(--neutral-gray-600);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    font-size: 12px;
    color: var(--neutral-gray-500);
}

.article-meta .author {
    font-weight: 500;
}

.article-meta .date {
    color: var(--neutral-gray-400);
}

.read-more {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.read-more:hover {
    color: var(--color-primary-light);
    transform: translateX(4px);
}

.read-more i {
    font-size: 12px;
    transition: transform 0.3s ease;
}

.read-more:hover i {
    transform: translateX(2px);
}

.articles-cta {
    text-align: center;
}

/* CTA Section */
.cta-section {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--neutral-gray-50) 0%, var(--white) 100%);
    position: relative;
    overflow: hidden;
    border-top: 1px solid var(--neutral-gray-200);
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-pattern);
    opacity: 0.1;
    z-index: 1;
}

.cta-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.cta-text h2 {
    font-size: 48px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 24px;
    line-height: 1.2;
}

.cta-text p {
    font-size: 20px;
    color: var(--neutral-gray-600);
    margin-bottom: 32px;
    line-height: 1.6;
}

.cta-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 40px;
}

.cta-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 18px;
    color: var(--neutral-gray-700);
}

.cta-feature i {
    color: var(--success-green);
    font-size: 20px;
}

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

.cta-image {
    position: relative;
}

.cta-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 16px;
    box-shadow: var(--shadow-strong);
    transition: all 0.4s ease;
}

.cta-image::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: 10px;
    bottom: 10px;
    background: var(--color-primary);
    border-radius: 16px;
    z-index: -1;
    opacity: 0.1;
    transition: all 0.4s ease;
}

.cta-image:hover img {
    transform: translateY(-8px);
}

.cta-image:hover::before {
    opacity: 0.2;
    transform: translateY(-4px);
}

/* Workflow Section */
.workflow-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--white) 0%, var(--neutral-gray-50) 100%);
    position: relative;
    border-top: 1px solid var(--neutral-gray-200);
}

.workflow-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-pattern);
    opacity: 0.1;
}

.workflow-header {
    text-align: center;
    margin-bottom: 80px;
    position: relative;
    z-index: 1;
}

.workflow-header h2 {
    font-size: 48px;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 24px;
    position: relative;
}

.workflow-header h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: var(--color-primary);
    border-radius: 2px;
    animation: slideIn 1s ease-out 0.5s both;
}

.workflow-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    position: relative;
    z-index: 1;
}

.step {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 40px 32px;
    border-radius: 16px;
    text-align: left;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-subtle), inset 0 1px 0 rgba(255, 255, 255, 0.8);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.step::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--color-primary);
    transform: scaleX(0);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.step:hover {
    transform: translateY(-8px) rotateX(2deg) rotateY(2deg);
    box-shadow: var(--shadow-strong), inset 0 1px 0 rgba(255, 255, 255, 0.9);
    border-color: rgba(30, 58, 138, 0.15);
}

.step:hover::before {
    transform: scaleX(1);
}

.step-number {
    font-size: 80px;
    font-weight: 900;
    color: var(--color-primary);
    margin: 0 0 24px 0;
    line-height: 1;
    text-align: left;
    transition: all 0.3s ease;
    position: relative;
}

.step:hover .step-number {
    color: var(--color-primary-dark);
    transform: translateX(8px);
}

.step h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--neutral-gray-800);
    margin-bottom: 20px;
    text-align: left;
}

.step p {
    color: var(--neutral-gray-600);
    line-height: 1.7;
    font-size: 16px;
    text-align: left;
}

.workflow-cta {
    text-align: center;
    margin-top: 60px;
    position: relative;
    z-index: 1;
    display: flex;
    gap: 20px;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    padding: 40px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: var(--shadow-subtle);
}

/* 页脚 */
.footer {
    background: var(--neutral-gray-800);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 20px;
    color: var(--white);
}

.footer-section h3 {
    font-size: 24px;
    font-weight: 700;
}

.footer-section h4 {
    font-size: 18px;
    font-weight: 600;
}

.footer-section p {
    color: var(--neutral-gray-300);
    line-height: 1.6;
    margin-bottom: 20px;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section ul li a {
    color: var(--neutral-gray-300);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--color-primary-light);
}

.social-links {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--neutral-gray-700);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.social-links a:hover {
    background: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

.footer-bottom {
    border-top: 1px solid var(--neutral-gray-700);
    padding-top: 20px;
    text-align: center;
    color: var(--neutral-gray-400);
    margin-top: 40px;
}

/* 浮动粒子 */
.floating-particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--color-primary);
    border-radius: 50%;
    animation: float-particle 6s ease-in-out infinite;
    opacity: 0.6;
}

.particle:nth-child(1) { top: 20%; left: 10%; animation-delay: 0s; }
.particle:nth-child(2) { top: 60%; left: 80%; animation-delay: 1s; }
.particle:nth-child(3) { top: 40%; left: 20%; animation-delay: 2s; }
.particle:nth-child(4) { top: 80%; left: 70%; animation-delay: 3s; }
.particle:nth-child(5) { top: 30%; left: 90%; animation-delay: 4s; }
.particle:nth-child(6) { top: 70%; left: 30%; animation-delay: 5s; }

/* 装饰性几何图形 */
.decorative-shapes {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.shape {
    position: absolute;
    opacity: 0.1;
    animation: shape-float 8s ease-in-out infinite;
}

.shape.circle {
    width: 60px;
    height: 60px;
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    background: linear-gradient(45deg, var(--color-primary), var(--color-primary-light));
}

.shape.triangle {
    width: 0;
    height: 0;
    border-left: 30px solid transparent;
    border-right: 30px solid transparent;
    border-bottom: 52px solid var(--color-primary-light);
    opacity: 0.08;
}

.shape.square {
    width: 40px;
    height: 40px;
    background: var(--color-primary);
    transform: rotate(45deg);
    opacity: 0.06;
}

.shape.hexagon {
    width: 50px;
    height: 50px;
    background: var(--color-primary-light);
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    opacity: 0.05;
}

.shape:nth-child(1) { top: 15%; left: 5%; animation-delay: 0s; }
.shape:nth-child(2) { top: 25%; right: 10%; animation-delay: 2s; }
.shape:nth-child(3) { top: 65%; left: 15%; animation-delay: 4s; }
.shape:nth-child(4) { top: 75%; right: 20%; animation-delay: 6s; }
.shape:nth-child(5) { top: 45%; left: 85%; animation-delay: 1s; }
.shape:nth-child(6) { top: 85%; left: 80%; animation-delay: 3s; }

/* 装饰性线条 */
.decorative-lines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.line {
    position: absolute;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
    height: 1px;
    opacity: 0.1;
    animation: line-glow 4s ease-in-out infinite;
}

.line:nth-child(1) { top: 25%; left: 0; width: 200px; animation-delay: 0s; }
.line:nth-child(2) { top: 55%; right: 0; width: 150px; animation-delay: 1s; }
.line:nth-child(3) { top: 85%; left: 10%; width: 180px; animation-delay: 2s; }

/* 装饰性光点 */
.light-dots {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.light-dot {
    position: absolute;
    width: 3px;
    height: 3px;
    background: var(--color-primary-light);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--color-primary-light);
    animation: light-pulse 3s ease-in-out infinite;
    opacity: 0.4;
}

.light-dot:nth-child(1) { top: 30%; left: 20%; animation-delay: 0s; }
.light-dot:nth-child(2) { top: 50%; right: 25%; animation-delay: 0.5s; }
.light-dot:nth-child(3) { top: 70%; left: 70%; animation-delay: 1s; }
.light-dot:nth-child(4) { top: 20%; right: 60%; animation-delay: 1.5s; }
.light-dot:nth-child(5) { top: 80%; right: 15%; animation-delay: 2s; }

@keyframes float-particle {
    0%, 100% { transform: translateY(0px) rotate(0deg); opacity: 0.6; }
    50% { transform: translateY(-20px) rotate(180deg); opacity: 1; }
}

@keyframes shape-float {
    0%, 100% { transform: translateY(0px) rotate(0deg); opacity: 0.1; }
    50% { transform: translateY(-15px) rotate(5deg); opacity: 0.15; }
}

@keyframes line-glow {
    0%, 100% { opacity: 0.1; transform: scaleX(1); }
    50% { opacity: 0.2; transform: scaleX(1.1); }
}

@keyframes light-pulse {
    0%, 100% { opacity: 0.4; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.2); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.animate-on-scroll.left {
    transform: translateX(-30px);
}

.animate-on-scroll.right {
    transform: translateX(30px);
}

.cursor-follower {
    position: fixed;
    width: 20px;
    height: 20px;
    background: var(--color-primary);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.1s ease;
    mix-blend-mode: difference;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .nav-container {
        padding: 0 12px;
    }
    
    .nav-logo h2 {
        font-size: 22px;
    }
    
    .nav-menu {
        gap: 16px;
    }
    
    .nav-link {
        font-size: 13px;
        white-space: nowrap;
        display: flex;
        align-items: center;
        height: 100%;
        padding: 0 4px;
        line-height: 1;
    }
    
    .nav-auth {
        gap: 6px;
    }
    
    .nav-auth .btn-primary,
    .nav-auth .btn-secondary {
        padding: 10px 14px;
        font-size: 13px;
        min-width: 90px;
    }
}

@media (max-width: 1100px) {
    .nav-container {
        padding: 0 14px;
    }
    
    .nav-menu {
        gap: 18px;
    }
    
    .nav-link {
        font-size: 14px;
        display: flex;
        align-items: center;
        height: 100%;
        padding: 0 4px;
        line-height: 1;
    }
    
    .nav-auth .btn-primary,
    .nav-auth .btn-secondary {
        padding: 11px 16px;
        min-width: 100px;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(255, 255, 255, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        padding: 80px 30px 30px;
        gap: 20px;
        transition: right 0.3s ease;
        z-index: 1000;
        box-shadow: -5px 0 30px rgba(0, 0, 0, 0.1);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu .nav-link {
        font-size: 1.1rem;
        padding: 12px 0;
        border-bottom: 1px solid rgba(0, 0, 0, 0.1);
        width: 100%;
        display: flex;
        align-items: center;
        height: auto;
        line-height: 1;
    }

    .mobile-auth {
        display: flex;
        flex-direction: column;
        gap: 12px;
        margin-top: 20px;
        width: 100%;
    }

    .desktop-auth {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
        justify-items: center;
    }
    
    .hero-title {
        font-size: 3rem;
        line-height: 1.2;
    }

    .hero-subtitle {
        font-size: 1.3rem;
        color: var(--neutral-gray-200);
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 16px;
        justify-content: center;
        align-items: center;
        width: 100%;
    }


    
    .ai-content {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 0 16px;
    }

    .ai-text {
        text-align: center;
    }

    .ai-text h2 {
        font-size: 28px;
        line-height: 1.3;
    }
    
    .ai-highlight {
        flex-direction: column;
        text-align: center;
        padding: 16px;
        gap: 12px;
    }
    
    .ai-features .feature {
        flex-direction: column;
        text-align: center;
        padding: 16px;
        gap: 12px;
    }
    
    .ai-visual {
        order: -1;
    }
    
    .ai-interface {
        transform: scale(0.9);
        margin: 0 auto;
    }
    
    .ai-chat {
        max-height: 300px;
        overflow-y: auto;
    }
    
    .feedback-card {
        position: static;
        margin-top: 20px;
        transform: none;
        width: 100%;
    }

    .workflow-header h2 {
        font-size: 32px;
        line-height: 1.3;
    }
    
    .workflow-steps {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .articles-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .articles-section .section-header h2 {
        font-size: 32px;
    }

    .cta-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .cta-text h2 {
        font-size: 36px;
    }

    .cta-text p {
        font-size: 18px;
    }

    .cta-features {
        align-items: center;
    }

    .cta-buttons {
        justify-content: center;
    }
    
    .step-number {
        font-size: 60px;
        margin: 0 0 20px 0;
    }
    
    .workflow-cta {
        flex-direction: column;
        gap: 16px;
    }
    
    .jobs-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    /* 触摸优化 */
    .btn-primary, .btn-secondary, .btn-apply {
        min-height: 52px;
        padding: 16px 28px;
        font-size: 16px;
        border-radius: 8px;
        overflow: visible;
    }
    
    /* 移动端毛玻璃效果优化 */
    .btn-secondary {
        background: rgba(255, 255, 255, 0.25);
        backdrop-filter: blur(15px);
        -webkit-backdrop-filter: blur(15px);
        border: 2px solid rgba(37, 99, 235, 0.4);
        color: var(--color-primary-dark);
        font-weight: 700;
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    }
    
    .btn-secondary:hover {
        background: rgba(37, 99, 235, 0.95);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        color: var(--white);
        transform: translateY(-1px);
        box-shadow: 0 8px 24px rgba(37, 99, 235, 0.3);
    }

    .job-card, .category-card {
        min-height: 200px;
    }

    /* 防止水平滚动 */
    body {
        overflow-x: hidden;
    }

    /* 优化触摸区域 */
    .nav-link, .tag, .category-link {
        min-height: 44px;
        display: flex;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 2.5rem;
        line-height: 1.3;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
        line-height: 1.6;
        color: var(--neutral-gray-200);
    }
    
    .section-header h2 {
        font-size: 1.75rem;
    }

    .ai-text h2 {
        font-size: 24px;
        line-height: 1.3;
    }
    
    .ai-highlight {
        padding: 12px;
        gap: 8px;
    }
    
    .ai-highlight h3 {
        font-size: 1.2rem;
    }
    
    .ai-features .feature {
        padding: 12px;
        gap: 8px;
    }
    
    .ai-features .feature h4 {
        font-size: 16px;
    }
    
    .ai-interface {
        transform: scale(0.8);
    }
    
    .ai-chat {
        max-height: 250px;
    }
    
    .ai-controls {
        gap: 8px;
    }
    
    .control-button {
        width: 40px;
        height: 40px;
        font-size: 14px;
    }

    .workflow-header h2 {
        font-size: 28px;
        line-height: 1.3;
    }

    .articles-section .section-header h2 {
        font-size: 28px;
    }

    .cta-text h2 {
        font-size: 28px;
    }

    .cta-text p {
        font-size: 16px;
    }

    .cta-feature {
        font-size: 16px;
    }
    
    .step-number {
        font-size: 50px;
        margin: 0 0 16px 0;
    }
    
    .job-card {
        padding: 16px;
        margin-bottom: 16px;
    }
    
    .category-card {
        padding: 16px;
    }

    .nav-menu {
        width: 100%;
        right: -100%;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-buttons .btn-primary,
    .hero-buttons .btn-secondary {
        width: 100%;
        max-width: 280px;
        height: 52px;
        font-size: 16px;
        padding: 16px 28px;
        overflow: visible;
    }

    .workflow-cta .btn-primary,
    .workflow-cta .btn-secondary {
        width: 100%;
        max-width: 300px;
    }

    /* 优化小屏幕触摸体验 */
    .btn-primary, .btn-secondary, .btn-apply {
        min-height: 52px;
        font-size: 16px;
        font-weight: 600;
        overflow: visible;
    }

    .job-card, .category-card {
        min-height: 180px;
    }

    /* 优化间距 */
    .hero {
        padding: 100px 0 60px;
        min-height: calc(100vh - 80px);
    }

    .jobs-section,
    .categories-section,
    .ai-interview-section,
    .workflow-section {
        padding: 40px 0;
    }

    /* 优化图片显示 */
    .ai-image img {
        max-width: 100%;
        height: auto;
    }

    /* 禁用移动端的一些动画效果 */
    .floating-particles {
        display: none;
    }

    .cursor-follower {
        display: none;
    }

    /* 优化加载状态 */
    .btn-primary.loading,
    .btn-secondary.loading {
        pointer-events: none;
        opacity: 0.7;
    }

    /* 优化触摸反馈 */
    .job-card:active,
    .category-card:active {
        transform: scale(0.98);
        transition: transform 0.1s ease;
    }
}

/* 移动端适配 */
@media (max-width: 768px) {
    .job-card {
        border-radius: 6px;
    }
    
    .job-card-content {
        border-radius: 6px;
        padding: 20px;
    }
    
    .job-type-icon {
        width: 28px;
        height: 28px;
        font-size: 12px;
        top: 12px;
        left: 12px;
    }
    
    .job-hot-badge {
        top: 12px;
        right: 12px;
        padding: 3px 6px;
        font-size: 9px;
    }
    
    .job-header {
        margin: 32px 0 16px 0;
    }
    
    .company-logo img {
        width: 48px;
        height: 48px;
        border-radius: 6px;
    }
    
    /* 移动端岗位名称 */
    .job-info h3 {
        font-size: 20px;
        font-weight: 700;
    }
    
    .company {
        font-size: 15px;
    }
    
    .job-location {
        font-size: 13px;
    }
    
    /* 移动端薪资信息 */
    .job-details {
        padding: 16px;
        margin: 16px 0;
    }
    
    .salary {
        font-size: 18px;
        font-weight: 700;
    }
    
    .salary i {
        font-size: 14px;
    }
    
    /* 移动端标签 */
    .tags {
        gap: 6px;
    }
    
    .tag {
        padding: 5px 10px;
        font-size: 12px;
    }
    
    /* 移动端按钮 */
    .job-card .btn-apply {
        padding: 12px 18px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .job-card-content {
        padding: 16px;
    }
    
    .job-type-icon {
        width: 24px;
        height: 24px;
        font-size: 10px;
    }
    
    .job-header {
        margin: 28px 0 12px 0;
    }
    
    .company-logo img {
        width: 40px;
        height: 40px;
    }
    
    /* 小屏幕岗位名称 */
    .job-info h3 {
        font-size: 18px;
        font-weight: 700;
    }
    
    .company {
        font-size: 14px;
    }
    
    .job-location {
        font-size: 12px;
    }
    
    /* 小屏幕薪资信息 */
    .job-details {
        padding: 12px;
    }
    
    .salary {
        font-size: 16px;
        font-weight: 700;
    }
    
    .salary i {
        font-size: 12px;
    }
    
    /* 小屏幕标签 */
    .tags {
        gap: 4px;
    }
    
    .tag {
        padding: 4px 8px;
        font-size: 11px;
    }
    
    /* 小屏幕按钮 */
    .job-card .btn-apply {
        padding: 10px 16px;
        font-size: 13px;
    }
}

/* 横屏优化 */
@media (max-width: 768px) and (orientation: landscape) {
    .hero {
        min-height: 100vh;
        padding: 80px 0 40px;
    }

    .nav-menu {
        padding-top: 60px;
    }

    .hero-container {
        gap: 20px;
    }

    .hero-title {
        font-size: 2rem;
    }
}

/* 高分辨率屏幕优化 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .btn-primary,
    .btn-secondary,
    .btn-apply {
        border-width: 0.5px;
    }
}

/* 慢速网络优化 */
.slow-network .floating-particles,
.slow-network .cursor-follower {
    display: none;
}

.slow-network .btn-secondary::before {
    display: none;
}

.slow-network .job-card::before,
.slow-network .category-card::before {
    display: none;
}

/* 移动端安全区域优化 */
@supports (padding: max(0px)) {
    .navbar {
        padding-left: max(20px, env(safe-area-inset-left));
        padding-right: max(20px, env(safe-area-inset-right));
    }
    
    .container {
        padding-left: max(20px, env(safe-area-inset-left));
        padding-right: max(20px, env(safe-area-inset-right));
    }
    
    .nav-menu {
        padding-left: max(30px, env(safe-area-inset-left));
        padding-right: max(30px, env(safe-area-inset-right));
        padding-top: max(80px, env(safe-area-inset-top));
        padding-bottom: max(30px, env(safe-area-inset-bottom));
    }
}

/* 页面头部样式 */
.page-header {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-teal) 100%);
    color: var(--white);
    padding: 80px 0 60px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-pattern);
    opacity: 0.1;
}

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

.page-header h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, var(--white), var(--accent-teal-lighter));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-header p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.breadcrumb a {
    color: var(--accent-teal-lighter);
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb a:hover {
    color: var(--white);
}

.breadcrumb i {
    font-size: 0.8rem;
    opacity: 0.7;
}

/* 政策内容样式 */
.policy-content {
    padding: 80px 0;
    background: var(--neutral-gray-50);
}

.policy-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: start;
}

.policy-main {
    background: var(--white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-subtle);
}

.policy-section {
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--neutral-gray-200);
}

.policy-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.policy-section h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.policy-section h2 i {
    color: var(--accent-teal);
    font-size: 1.5rem;
}

.policy-section p {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 1rem;
    color: var(--neutral-gray-700);
}

.policy-section ul, .policy-section ol {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.policy-section li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
    color: var(--neutral-gray-700);
}

.policy-section strong {
    color: var(--primary-blue);
    font-weight: 600;
}

.contact-info {
    background: var(--neutral-gray-100);
    padding: 20px;
    border-radius: 10px;
    margin-top: 1rem;
}

.contact-info p {
    margin-bottom: 0.5rem;
}

/* 侧边栏样式 */
.policy-sidebar {
    position: sticky;
    top: 100px;
}

.sidebar-widget {
    background: var(--white);
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow-subtle);
    margin-bottom: 30px;
}

.sidebar-widget h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--accent-teal-light);
}

.sidebar-widget ul {
    list-style: none;
    padding: 0;
}

.sidebar-widget li {
    margin-bottom: 0.8rem;
}

.sidebar-widget a {
    color: var(--neutral-gray-700);
    text-decoration: none;
    transition: all 0.3s ease;
    display: block;
    padding: 0.5rem 0;
    border-radius: 5px;
}

.sidebar-widget a:hover {
    color: var(--primary-blue);
    background: var(--neutral-gray-100);
    padding-left: 0.5rem;
}

.sidebar-widget p {
    color: var(--neutral-gray-600);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

/* 帮助内容样式 */
.help-content {
    padding: 80px 0;
    background: var(--neutral-gray-50);
}

.help-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 60px;
    align-items: start;
}

.help-main {
    background: var(--white);
    padding: 40px;
    border-radius: 20px;
    box-shadow: var(--shadow-subtle);
}

.help-category {
    margin-bottom: 50px;
}

.help-category h2 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--accent-teal-light);
}

.help-category h2 i {
    color: var(--accent-teal);
    font-size: 1.5rem;
}

.help-item {
    background: var(--neutral-gray-50);
    padding: 25px;
    border-radius: 15px;
    margin-bottom: 25px;
    border-left: 4px solid var(--accent-teal-light);
    transition: all 0.3s ease;
}

.help-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.help-item h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.help-item p {
    color: var(--neutral-gray-700);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.help-item ul, .help-item ol {
    margin: 1rem 0;
    padding-left: 1.5rem;
}

.help-item li {
    margin-bottom: 0.5rem;
    color: var(--neutral-gray-700);
}

.support-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 2rem 0;
}

.support-option {
    text-align: center;
    padding: 20px;
    background: var(--neutral-gray-100);
    border-radius: 10px;
    transition: all 0.3s ease;
}

.support-option:hover {
    background: var(--accent-teal-light);
    color: var(--white);
}

.support-option i {
    font-size: 2rem;
    color: var(--accent-teal);
    margin-bottom: 1rem;
}

.support-option h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.support-option p {
    font-size: 0.9rem;
    margin-bottom: 0.3rem;
}

/* 工作过滤器样式 */
.job-filters {
    background: var(--white);
    padding: 40px 0;
    border-bottom: 1px solid var(--neutral-gray-200);
}

.filters-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    align-items: end;
}

.filter-group {
    display: flex;
    flex-direction: column;
}

.filter-group label {
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.filter-group select {
    padding: 12px 16px;
    border: 2px solid var(--neutral-gray-300);
    border-radius: 10px;
    font-size: 1rem;
    background: var(--white);
    color: var(--neutral-gray-800);
    transition: all 0.3s ease;
}

.filter-group select:focus {
    outline: none;
    border-color: var(--accent-teal-light);
    box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.1);
}

.filter-group select:hover {
    border-color: var(--accent-teal-light);
}

/* 工作结果样式 */
.jobs-results {
    padding: 60px 0;
    background: var(--neutral-gray-50);
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
    gap: 20px;
}

.results-count h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.results-count p {
    color: var(--neutral-gray-600);
    font-size: 0.95rem;
}

.sort-options {
    display: flex;
    align-items: center;
    gap: 10px;
}

.sort-options label {
    font-weight: 600;
    color: var(--primary-blue);
    font-size: 0.9rem;
}

.sort-options select {
    padding: 8px 16px;
    border: 2px solid var(--neutral-gray-300);
    border-radius: 8px;
    font-size: 0.95rem;
    background: var(--white);
    color: var(--neutral-gray-800);
    transition: all 0.3s ease;
}

.sort-options select:focus {
    outline: none;
    border-color: var(--accent-teal-light);
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-top: 60px;
}

.pagination-btn {
    padding: 12px 20px;
    border: 2px solid var(--neutral-gray-300);
    background: var(--white);
    color: var(--neutral-gray-700);
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pagination-btn:hover:not(:disabled) {
    border-color: var(--accent-teal-light);
    color: var(--accent-teal);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.page-numbers {
    display: flex;
    gap: 10px;
}

.page-number {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--neutral-gray-300);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.page-number:hover {
    border-color: var(--accent-teal-light);
    color: var(--accent-teal);
}

.page-number.active {
    background: var(--accent-teal-light);
    color: var(--white);
    border-color: var(--accent-teal-light);
}

/* 移动端响应式 */
@media (max-width: 768px) {
    .policy-grid,
    .help-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .policy-main,
    .help-main {
        padding: 25px;
    }
    
    .page-header h1 {
        font-size: 2.5rem;
    }
    
    .filters-container {
        grid-template-columns: 1fr;
    }
    
    .results-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .pagination {
        flex-wrap: wrap;
        gap: 15px;
    }
}

@media (max-width: 480px) {
    .page-header h1 {
        font-size: 2rem;
    }
    
    .policy-section h2,
    .help-category h2 {
        font-size: 1.5rem;
    }
    
    .support-options {
        grid-template-columns: 1fr;
    }
}

/* Logo样式 */
.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
    cursor: pointer;
}

.logo-icon {
    position: relative;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
    transition: all 0.3s ease;
    transform-origin: center;
}

.logo-icon:hover {
    transform: scale(1.1) rotate(-3deg);
    filter: drop-shadow(0 4px 12px rgba(59, 130, 246, 0.3));
}

/* 手绘效果 - 为logo添加不规则边框 */
.logo-icon::before {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    border: 2px dashed #3b82f6;
    border-radius: 12px;
    opacity: 0.3;
    animation: logoGlow 4s ease-in-out infinite;
    pointer-events: none;
}

/* 手绘效果 - 添加手绘风格的阴影 */
.logo-icon::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    right: -2px;
    bottom: -2px;
    background: rgba(0,0,0,0.1);
    border-radius: 8px;
    z-index: -1;
    transform: rotate(1deg);
}

.logo-text {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--color-primary);
    margin: 0;
    position: relative;
    transition: all 0.3s ease;
    text-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.logo-text::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #3b82f6, #1e40af, #3b82f6);
    background-size: 200% 100%;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
    border-radius: 2px;
    animation: underlineGlow 3s ease-in-out infinite;
}

.logo-container:hover .logo-text::after {
    transform: scaleX(1);
}

.logo-container:hover .logo-text {
    color: #1e40af;
    transform: translateY(-1px);
}

/* Logo动画效果 */
@keyframes logoGlow {
    0%, 100% { 
        opacity: 0.3;
        transform: scale(1) rotate(0deg);
    }
    25% { 
        opacity: 0.5;
        transform: scale(1.02) rotate(1deg);
    }
    50% { 
        opacity: 0.4;
        transform: scale(1.01) rotate(-1deg);
    }
    75% { 
        opacity: 0.6;
        transform: scale(1.03) rotate(0.5deg);
    }
}

@keyframes underlineGlow {
    0%, 100% { 
        background-position: 0% 50%;
    }
    50% { 
        background-position: 100% 50%;
    }
}

/* Logo点击效果 */
.logo-container:active .logo-icon {
    transform: scale(0.95) rotate(1deg);
}

.logo-container:active .logo-text {
    transform: translateY(0px);
}

/* 移动端适配 */
@media (max-width: 768px) {
    .logo-container {
        gap: 8px;
    }
    
    .logo-icon {
        width: 40px;
        height: 40px;
    }
    
    .logo-text {
        font-size: 1.2rem;
    }
    
    .logo-icon:hover {
        transform: scale(1.05) rotate(-2deg);
    }
}

@media (max-width: 480px) {
    .logo-icon {
        width: 36px;
        height: 36px;
    }
    
    .logo-text {
        font-size: 1rem;
    }
    
    .logo-container {
        gap: 6px;
    }
}

/* 深色模式适配 */
@media (prefers-color-scheme: dark) {
    .logo-text {
        color: #60a5fa;
    }
    
    .logo-container:hover .logo-text {
        color: #93c5fd;
    }
    
    .logo-icon::before {
        border-color: #60a5fa;
    }
}

/* 除了首页之外的所有白色按钮使用重色文字 */
body:not(.home-page) .btn-secondary,
.terms-page .btn-secondary,
.privacy-page .btn-secondary,
.help-page .btn-secondary,
.browse-jobs-page .btn-secondary,
.job-detail-page .btn-secondary,
.demo-page .btn-secondary {
    color: var(--color-primary-dark) !important;
    font-weight: 800 !important;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1) !important;
}

/* 确保非首页的白色按钮hover状态也使用重色文字 */
body:not(.home-page) .btn-secondary:hover,
.terms-page .btn-secondary:hover,
.privacy-page .btn-secondary:hover,
.help-page .btn-secondary:hover,
.browse-jobs-page .btn-secondary:hover,
.job-detail-page .btn-secondary:hover,
.demo-page .btn-secondary:hover {
    color: var(--color-primary-dark) !important;
    font-weight: 800 !important;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1) !important;
}