/* ==================== CSS 变量与重置 ==================== */
:root {
    --primary: #4f46e5;
    --primary-dark: #3730a3;
    --primary-light: #818cf8;
    --primary-gradient: linear-gradient(135deg, #4f46e5, #7c3aed);
    --secondary: #0ea5e9;
    --accent: #f59e0b;
    --green: #10b981;
    --red: #ef4444;

    --dark: #0f172a;
    --gray-900: #1e293b;
    --gray-800: #334155;
    --gray-700: #475569;
    --gray-600: #64748b;
    --gray-500: #94a3b8;
    --gray-400: #cbd5e1;
    --gray-300: #d1d5db;
    --gray-200: #e2e8f0;
    --gray-100: #f1f5f9;
    --gray-50: #f8fafc;
    --white: #ffffff;

    --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -2px rgba(0,0,0,0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0,0,0,0.15);

    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);

    --max-width: 1200px;
    --header-top-height: 36px;
    --header-main-height: 64px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    color: var(--gray-900);
    background: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* ==================== 通用组件 ==================== */
.text-gradient {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-label {
    display: inline-block;
    padding: 6px 18px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--primary);
    background: rgba(79,70,229,0.08);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 2.2rem;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 14px;
    color: var(--gray-900);
}

.section-header p {
    font-size: 1.05rem;
    color: var(--gray-600);
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ==================== 按钮系统 ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 24px;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary-gradient);
    color: var(--white);
    border-color: transparent;
}

.btn-primary:hover {
    box-shadow: 0 8px 25px rgba(79,70,229,0.35);
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-ghost {
    background: transparent;
    color: var(--gray-700);
    border-color: transparent;
}

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

.btn-sm { padding: 6px 16px; font-size: 0.82rem; border-radius: var(--radius-sm); }
.btn-lg { padding: 14px 36px; font-size: 1rem; border-radius: var(--radius-lg); }
.btn-block { width: 100%; justify-content: center; }

/* ==================== 顶部导航 ==================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
}

.header-top {
    background: var(--dark);
    height: var(--header-top-height);
    display: flex;
    align-items: center;
    transition: var(--transition);
}

.header-top .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

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

.header-top-links a,
.header-top-actions a {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.65);
    display: flex;
    align-items: center;
    gap: 5px;
}

.header-top-links a:hover,
.header-top-actions a:hover { color: var(--white); }

.divider { color: rgba(255,255,255,0.2); font-size: 0.75rem; }

.header-main {
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--gray-200);
    height: var(--header-main-height);
    transition: var(--transition);
}

.header.scrolled .header-top {
    height: 0;
    overflow: hidden;
    opacity: 0;
}

.header.scrolled .header-main {
    box-shadow: var(--shadow-md);
    background: rgba(255,255,255,0.98);
}

.header-main .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo { display: flex; align-items: center; gap: 8px; }

.logo h1 {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-icon {
    display: inline-flex;
    width: 34px;
    height: 34px;
    background: var(--primary-gradient);
    color: var(--white);
    border-radius: var(--radius-sm);
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.logo-tagline {
    font-size: 0.7rem;
    color: var(--gray-500);
    font-weight: 500;
    letter-spacing: 0.02em;
    padding-left: 8px;
    border-left: 1px solid var(--gray-300);
    margin-left: 8px;
    display: none;
}

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

.nav-list { display: flex; gap: 4px; }

.nav-list li a {
    padding: 8px 16px;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--gray-700);
    border-radius: var(--radius-sm);
    position: relative;
    transition: var(--transition);
}

.nav-list li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 60%;
    height: 2px;
    background: var(--primary);
    border-radius: 1px;
    transition: var(--transition);
}

.nav-list li a:hover,
.nav-list li a.active { color: var(--primary); background: rgba(79,70,229,0.06); }
.nav-list li a.active::after { transform: translateX(-50%) scaleX(1); }

.nav-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: 20px;
}

/* 汉堡菜单 */
.menu-toggle {
    display: none;
    width: 28px;
    height: 20px;
    position: relative;
    cursor: pointer;
    margin-left: 12px;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 2.5px;
    background: var(--gray-800);
    border-radius: 2px;
    position: absolute;
    left: 0;
    transition: var(--transition);
}

.menu-toggle span:nth-child(1) { top: 0; }
.menu-toggle span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.menu-toggle span:nth-child(3) { bottom: 0; }

.menu-toggle.active span:nth-child(1) { top: 50%; transform: translateY(-50%) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { bottom: 50%; transform: translateY(50%) rotate(-45deg); }

/* ==================== Hero 区域 ==================== */
.hero {
    padding: calc(var(--header-top-height) + var(--header-main-height) + 60px) 0 0;
    min-height: 100vh;
    position: relative;
    overflow: hidden;
    background: linear-gradient(160deg, #eef2ff 0%, #e0f2fe 40%, #fef3c7 80%, #fce7f3 100%);
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.hero-particles {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 30%, rgba(79,70,229,0.06) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(14,165,233,0.06) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(245,158,11,0.05) 0%, transparent 50%),
        radial-gradient(circle at 90% 70%, rgba(79,70,229,0.04) 0%, transparent 50%);
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero-content { max-width: 820px; margin: 0 auto; text-align: center; }

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(255,255,255,0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(79,70,229,0.15);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 28px;
    box-shadow: var(--shadow-sm);
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(16,185,129,0.4); }
    50% { opacity: 0.8; box-shadow: 0 0 0 8px rgba(16,185,129,0); }
}

.hero-content h1 {
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
    color: var(--gray-900);
}

.hero-content h1 .highlight {
    background: linear-gradient(135deg, var(--primary), #7c3aed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--gray-600);
    margin-bottom: 36px;
    line-height: 1.7;
}

.desktop-only { display: block; }

/* 搜索框 */
.search-box {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: 0;
    margin-bottom: 32px;
    overflow: hidden;
    border: 1px solid var(--gray-200);
}

.search-tabs {
    display: flex;
    border-bottom: 1px solid var(--gray-200);
    background: var(--gray-50);
    padding: 0 4px;
}

.search-tab {
    padding: 12px 28px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-600);
    background: none;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.search-tab:hover { color: var(--primary); }
.search-tab.active { color: var(--primary); }
.search-tab.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 70%;
    height: 2px;
    background: var(--primary);
    border-radius: 1px;
}

.search-main {
    display: flex;
    padding: 8px;
    gap: 8px;
    align-items: center;
}

.search-input-group {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    background: var(--gray-50);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.search-input-group:focus-within {
    background: var(--white);
    box-shadow: 0 0 0 2px var(--primary-light);
}

.search-input-group i { color: var(--gray-500); font-size: 0.9rem; }
.search-keyword { flex: 2; }
.search-location { flex: 1; }
.search-category { flex: 1; }

.search-input-group input,
.search-input-group select {
    border: none;
    background: transparent;
    outline: none;
    font-size: 0.9rem;
    color: var(--gray-900);
    width: 100%;
    cursor: pointer;
}

.search-input-group select { appearance: none; cursor: pointer; }
.search-input-group input::placeholder { color: var(--gray-500); }

.btn-search {
    padding: 12px 36px;
    font-size: 0.95rem;
    flex-shrink: 0;
}

/* 迷你统计 */
.hero-stats-mini {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 28px;
}

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

.mini-stat-number {
    display: block;
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1.2;
}

.mini-stat-label {
    font-size: 0.82rem;
    color: var(--gray-500);
    font-weight: 500;
}

.hero-tags {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}

.tags-label {
    font-size: 0.82rem;
    color: var(--gray-600);
    font-weight: 600;
}

.hero-tags a {
    padding: 5px 14px;
    font-size: 0.78rem;
    color: var(--gray-600);
    background: rgba(255,255,255,0.6);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-full);
    transition: var(--transition);
}

.hero-tags a:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: rgba(79,70,229,0.06);
}

.hero-wave {
    position: relative;
    margin-top: 60px;
    line-height: 0;
}

.hero-wave svg {
    display: block;
    width: 100%;
    height: 80px;
}

/* ==================== 信任品牌 ==================== */
.trust-brands {
    padding: 40px 0;
    background: var(--white);
    border-bottom: 1px solid var(--gray-100);
}

.trust-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 28px;
}

.trust-title {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--gray-500);
    white-space: nowrap;
}

.trust-separator {
    flex: 1;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--gray-200), transparent);
}

.brand-logos {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.brand-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-600);
    transition: var(--transition);
    border-radius: var(--radius-md);
}

.brand-item i { font-size: 1.4rem; }

.brand-item:hover {
    color: var(--primary);
    background: var(--gray-50);
}

/* ==================== 热门职位 ==================== */
.jobs {
    padding: 100px 0;
    background: var(--gray-50);
}

.job-filters {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--gray-700);
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn .count {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--gray-500);
    background: var(--gray-100);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    transition: var(--transition);
}

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

.filter-btn.active {
    color: var(--white);
    background: var(--primary-gradient);
    border-color: transparent;
}

.filter-btn.active .count { background: rgba(255,255,255,0.2); color: var(--white); }

.job-listings {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 44px;
}

.job-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 20px;
    transition: var(--transition);
    cursor: pointer;
}

.job-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.job-card-top {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
}

.job-company {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    background: var(--gray-50);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
    border: 1px solid var(--gray-100);
    overflow: hidden;
}

.job-company img { width: 70%; height: 70%; object-fit: contain; }

.job-company-badge {
    position: absolute;
    top: -2px;
    right: -2px;
    padding: 2px 6px;
    font-size: 0.6rem;
    font-weight: 700;
    color: var(--white);
    background: var(--primary);
    border-radius: 0 var(--radius-sm) 0 var(--radius-sm);
    line-height: 1;
}

.job-company-badge.hot { background: var(--red); }

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

.job-info h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.job-tag-hot,
.job-tag-new {
    display: inline-block;
    padding: 2px 8px;
    font-size: 0.65rem;
    font-weight: 700;
    border-radius: 3px;
    letter-spacing: 0.02em;
}

.job-tag-hot { background: rgba(239,68,68,0.12); color: var(--red); }
.job-tag-new { background: rgba(16,185,129,0.12); color: var(--green); }

.job-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 8px;
}

.job-meta span {
    font-size: 0.8rem;
    color: var(--gray-500);
    display: flex;
    align-items: center;
    gap: 4px;
}

.job-meta span i { color: var(--primary-light); font-size: 0.7rem; }

.job-desc {
    font-size: 0.85rem;
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.job-tags { display: flex; flex-wrap: wrap; gap: 6px; }

.job-tags span {
    padding: 3px 10px;
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--gray-600);
    background: var(--gray-100);
    border-radius: 4px;
}

.job-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 14px;
    border-top: 1px solid var(--gray-100);
}

.job-salary {
    display: flex;
    align-items: baseline;
    gap: 4px;
}

.salary-range {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--accent);
}

.salary-bonus {
    font-size: 0.78rem;
    color: var(--gray-500);
}

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

.job-applicants {
    font-size: 0.75rem;
    color: var(--gray-500);
    display: flex;
    align-items: center;
    gap: 4px;
}

.job-applicants i { font-size: 0.7rem; }

.view-more { text-align: center; }
.view-more .btn i { transition: var(--transition); }
.view-more .btn:hover i { transform: translateX(4px); }

/* ==================== 平台优势 ==================== */
.features {
    padding: 100px 0;
    background: var(--white);
}

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

.feature-card {
    padding: 40px 32px;
    border-radius: var(--radius-xl);
    background: var(--white);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-slow);
}

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

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

.feature-icon-wrapper {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-lg);
    background: rgba(79,70,229,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    transition: var(--transition);
}

.feature-card:hover .feature-icon-wrapper {
    background: var(--primary-gradient);
}

.feature-icon {
    font-size: 1.5rem;
    color: var(--primary);
    transition: var(--transition);
}

.feature-card:hover .feature-icon { color: var(--white); }

.feature-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--gray-900);
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 16px;
}

.feature-link {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.feature-link i { font-size: 0.78rem; transition: var(--transition); }
.feature-link:hover i { transform: translateX(3px); }

/* ==================== 解决方案 ==================== */
.solutions {
    padding: 100px 0;
    background: var(--gray-50);
}

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

.solution-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 40px 32px;
    border: 1px solid var(--gray-200);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.solution-card-bg {
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(79,70,229,0.03), transparent);
    pointer-events: none;
}

.solution-card.featured {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 1px var(--primary-light), var(--shadow-lg);
    transform: scale(1.02);
}

.solution-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 4px 14px;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--white);
    background: var(--primary-gradient);
    border-radius: var(--radius-full);
}

.solution-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    background: rgba(79,70,229,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.solution-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.solution-card > p {
    font-size: 0.88rem;
    color: var(--gray-600);
    margin-bottom: 20px;
    line-height: 1.6;
}

.solution-features { margin-bottom: 24px; }

.solution-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 0;
    font-size: 0.85rem;
    color: var(--gray-700);
}

.solution-features li i {
    color: var(--green);
    font-size: 0.85rem;
}

.solution-price {
    margin-bottom: 20px;
}

.price {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--gray-900);
}

.price-period {
    font-size: 0.85rem;
    color: var(--gray-500);
}

/* ==================== 统计数字大背景 ==================== */
.stats-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--dark), #1e1b4b);
    position: relative;
    overflow: hidden;
}

.stats-overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(79,70,229,0.15), transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(14,165,233,0.1), transparent 50%);
    pointer-events: none;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    position: relative;
    z-index: 1;
}

.stat-card {
    text-align: center;
    padding: 24px;
}

.stat-icon {
    font-size: 2rem;
    color: rgba(255,255,255,0.2);
    margin-bottom: 12px;
}

.stat-number {
    display: block;
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1.2;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.95rem;
    color: rgba(255,255,255,0.6);
    font-weight: 500;
}

/* ==================== 新闻资讯 ==================== */
.news {
    padding: 100px 0;
    background: var(--white);
}

.news-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 44px;
}

.news-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
    background: var(--white);
}

.news-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.news-card.featured-news {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.news-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
}

.news-card.featured-news .news-image { aspect-ratio: 16/11; }

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

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

.news-category {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 4px 12px;
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--white);
    background: var(--primary-gradient);
    border-radius: var(--radius-full);
}

.news-content { padding: 20px; }

.news-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 10px;
}

.news-meta span {
    font-size: 0.78rem;
    color: var(--gray-500);
    display: flex;
    align-items: center;
    gap: 4px;
}

.news-meta span i { font-size: 0.72rem; }

.news-content h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--gray-900);
    line-height: 1.4;
}

.news-content p {
    font-size: 0.88rem;
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-read-more {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.news-read-more i { font-size: 0.75rem; transition: var(--transition); }
.news-read-more:hover i { transform: translateX(3px); }

/* ==================== 用户评价 ==================== */
.testimonials {
    padding: 80px 0;
    background: var(--gray-50);
}

.testimonials-slider {
    max-width: 700px;
    margin: 0 auto;
    overflow: hidden;
}

.testimonial-track {
    display: flex;
    gap: 20px;
    transition: transform 0.5s ease;
}

.testimonial-card {
    min-width: 100%;
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 36px;
    text-align: center;
    border: 1px solid var(--gray-200);
}

.testimonial-rating {
    display: flex;
    justify-content: center;
    gap: 4px;
    margin-bottom: 20px;
}

.testimonial-rating i { color: var(--accent); font-size: 1.1rem; }

.testimonial-text {
    font-size: 1rem;
    color: var(--gray-700);
    line-height: 1.8;
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--gray-200);
}

.author-avatar img { width: 100%; height: 100%; object-fit: cover; }

.author-info { text-align: left; }

.author-info strong {
    display: block;
    font-size: 0.95rem;
    color: var(--gray-900);
}

.author-info span {
    font-size: 0.8rem;
    color: var(--gray-500);
}

.testimonial-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 24px;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gray-300);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active { background: var(--primary); width: 24px; border-radius: 4px; }

/* ==================== 关于我们 ==================== */
.about {
    padding: 100px 0;
    background: var(--white);
}

.about-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.about-text { flex: 1; }
.about-text .section-label { margin-bottom: 14px; }

.about-text h2 {
    font-size: 2rem;
    font-weight: 800;
    line-height: 1.25;
    margin-bottom: 20px;
    color: var(--gray-900);
}

.about-text > p {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 28px;
}

.about-features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 28px;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    background: var(--gray-50);
    border-radius: var(--radius-md);
}

.about-feature i {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: rgba(79,70,229,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.about-feature div { line-height: 1.3; }
.about-feature strong { display: block; font-size: 0.9rem; color: var(--gray-900); }
.about-feature span { font-size: 0.8rem; color: var(--gray-600); }

.about-image {
    flex: 1;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.about-image img { width: 100%; }

/* ==================== CTA ==================== */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary), #5b21b6);
    position: relative;
    overflow: hidden;
}

.cta-particles {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 30% 70%, rgba(255,255,255,0.08), transparent 50%),
        radial-gradient(circle at 70% 30%, rgba(255,255,255,0.05), transparent 50%);
    pointer-events: none;
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.cta-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--white);
    margin: 0 auto 24px;
}

.cta-content h2 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 12px;
}

.cta-content p {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.85);
    margin-bottom: 32px;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.btn-cta-primary {
    padding: 16px 36px;
    font-size: 1rem;
    font-weight: 700;
    border-radius: var(--radius-lg);
    background: var(--white);
    color: var(--primary);
    border: 2px solid var(--white);
    transition: var(--transition);
}

.btn-cta-primary:hover {
    background: transparent;
    color: var(--white);
    box-shadow: 0 0 30px rgba(255,255,255,0.2);
}

.btn-cta-secondary {
    padding: 16px 36px;
    font-size: 1rem;
    font-weight: 700;
    border-radius: var(--radius-lg);
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.4);
    transition: var(--transition);
}

.btn-cta-secondary:hover {
    border-color: var(--white);
    background: rgba(255,255,255,0.1);
}

.cta-trust {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.cta-trust span {
    font-size: 0.88rem;
    color: rgba(255,255,255,0.7);
    display: flex;
    align-items: center;
    gap: 6px;
}

.cta-trust span i { color: var(--accent); }

/* ==================== 页脚 ==================== */
.footer {
    background: var(--dark);
    color: rgba(255,255,255,0.8);
    padding: 60px 0 0;
}

.footer-top {
    display: flex;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand {
    flex-shrink: 0;
    width: 280px;
}

.footer-logo {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 14px;
}

.footer-logo i { color: var(--primary-light); }

.footer-brand > p {
    font-size: 0.85rem;
    line-height: 1.7;
    color: rgba(255,255,255,0.5);
    margin-bottom: 20px;
}

.footer-cert {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
}

.footer-cert span {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.4);
    display: flex;
    align-items: center;
    gap: 5px;
}

.social-links {
    display: flex;
    gap: 10px;
}

.social-links a {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255,255,255,0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.5);
    font-size: 1rem;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-3px);
}

.footer-links-group {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.footer-col h4 {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 18px;
}

.footer-col ul li { margin-bottom: 10px; }

.footer-col ul li a,
.footer-col ul li {
    font-size: 0.82rem;
    color: rgba(255,255,255,0.5);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--primary-light);
    padding-left: 4px;
}

.footer-contact ul li i {
    width: 16px;
    color: var(--primary-light);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 24px 0;
}

.footer-bottom-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.footer-bottom-links a {
    font-size: 0.78rem;
    color: rgba(255,255,255,0.4);
}

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

.footer-bottom p {
    text-align: center;
    font-size: 0.75rem;
    color: rgba(255,255,255,0.3);
}

/* ==================== 回到顶部 ==================== */
.scroll-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary-gradient);
    color: var(--white);
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    z-index: 999;
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
}

.scroll-to-top.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.scroll-to-top:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: var(--shadow-xl);
}

/* ==================== 响应式设计 ==================== */

@media (max-width: 1024px) {
    .section-header h2 { font-size: 1.8rem; }
    .hero-content h1 { font-size: 2.4rem; }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .solutions-grid { grid-template-columns: repeat(2, 1fr); }
    .solutions-grid .solution-card:last-child { grid-column: 1 / -1; max-width: 500px; margin: 0 auto; }
    .about-content { flex-direction: column-reverse; gap: 40px; }
    .about-image { max-width: 500px; }
    .footer-top { flex-direction: column; gap: 40px; }
    .footer-brand { width: 100%; }
    .footer-links-group { grid-template-columns: repeat(2, 1fr); }
    .desktop-only { display: inline; }
}

@media (max-width: 768px) {
    .header-top { display: none; }
    .hero { padding: calc(var(--header-main-height) + 20px) 0 0; min-height: auto; }

    .nav-list {
        display: none;
        position: absolute;
        top: var(--header-main-height);
        left: 0;
        width: 100%;
        flex-direction: column;
        background: var(--white);
        border-bottom: 1px solid var(--gray-200);
        padding: 12px 20px;
        box-shadow: var(--shadow-lg);
        z-index: 999;
    }

    .nav-list.open { display: flex; }

    .nav-list li a { padding: 12px 16px; }

    .nav-actions .btn-ghost { display: none; }

    .menu-toggle { display: block; }

    .hero-content h1 { font-size: 1.8rem; }
    .hero-subtitle { font-size: 0.95rem; }
    .desktop-only { display: inline; }

    .search-main { flex-direction: column; }
    .search-input-group { width: 100%; }
    .btn-search { width: 100%; }

    .hero-stats-mini { gap: 20px; flex-wrap: wrap; }
    .mini-stat-number { font-size: 1.3rem; }

    .job-listings { grid-template-columns: 1fr; }

    .job-card-top { flex-direction: column; align-items: flex-start; }
    .job-card-footer { flex-direction: column; align-items: flex-start; gap: 12px; }
    .job-actions { width: 100%; justify-content: space-between; }

    .features-grid { grid-template-columns: 1fr; }
    .solutions-grid { grid-template-columns: 1fr; }
    .solutions-grid .solution-card:last-child { max-width: 100%; }
    .solution-card.featured { transform: none; }

    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .stat-number { font-size: 2rem; }

    .news-grid { grid-template-columns: 1fr; }
    .news-card.featured-news { grid-template-columns: 1fr; }

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

    .cta-content h2 { font-size: 1.6rem; }

    .footer-links-group { grid-template-columns: 1fr 1fr; gap: 24px; }

    .scroll-to-top { bottom: 24px; right: 24px; width: 42px; height: 42px; font-size: 1rem; }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .section-header h2 { font-size: 1.4rem; }
    .section-header p { font-size: 0.9rem; }
    .hero-content h1 { font-size: 1.5rem; }
    .logo h1 { font-size: 1.1rem; }
    .hero-badge { font-size: 0.75rem; padding: 6px 14px; }
    .stats-grid { gap: 10px; }
    .stat-number { font-size: 1.6rem; }
    .footer-links-group { grid-template-columns: 1fr; }
}