:root {
    /* ESB Foods 风格：深蓝 + 红色 */
    --primary: #1B3A5C;
    --primary-dark: #0F2843;
    --primary-light: #2E5A8A;
    --secondary: #C8102E;
    --secondary-dark: #9B0C24;
    --accent: #F4F6F8;
    --accent-light: #FFFFFF;
    --text-dark: #0B1F33;
    --text-body: #4A5568;
    --text-light: #718096;
    --text-muted: #A0AEC0;
    --bg-light: #F7FAFC;
    --bg-white: #FFFFFF;
    --bg-dark: #1B3A5C;
    --bg-secondary: #C8102E;
    --border: #E2E8F0;
    --border-light: #EDF2F7;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    --transition-fast: 0.15s ease;
    --transition: 0.25s ease;
    --transition-slow: 0.4s ease;
    /* 字体栈：拉丁字形走 webfont（Inter / Playfair Display），汉字走系统高质量字体兜底 */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
        'PingFang SC', 'Hiragino Sans GB', 'Source Han Sans SC', 'Noto Sans SC',
        'Microsoft YaHei', 'WenQuanYi Micro Hei', sans-serif;
    --font-serif: 'Playfair Display', Georgia,
        'Songti SC', 'Source Han Serif SC', 'Noto Serif SC', 'SimSun', serif;
    /* 行距与字距：英文站取下列默认值，中文站在下方 lang="zh-CN" 块中覆写 */
    --lh-body: 1.6;
    --lh-heading: 1.2;
    --tracking-eyebrow: 0.1em;
    --tracking-wide: 0.05em;
    --container-max: 1280px;
    --header-height: 72px;
    --header-scrolled-height: 60px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    color: var(--text-body);
    line-height: var(--lh-body);
    background-color: var(--bg-white);
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-sans);
    color: var(--text-dark);
    font-weight: 700;
    line-height: var(--lh-heading);
    margin-bottom: 0.5em;
}

h1 { font-size: clamp(2rem, 4vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 3vw, 2.75rem); }
h3 { font-size: clamp(1.5rem, 2.5vw, 2rem); }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-body);
    font-size: 1rem;
    line-height: 1.7;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

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

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 5rem 0;
}

.section-sm {
    padding: 3rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.section-header .subtitle {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: var(--tracking-eyebrow);
    color: var(--secondary);
    margin-bottom: 0.75rem;
}

.section-header h2 {
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.section-header p {
    max-width: 650px;
    margin: 0 auto;
    color: var(--text-light);
    font-size: 1.0625rem;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary); }
.text-secondary { color: var(--secondary); }
.text-accent { color: var(--accent); }
.text-light { color: var(--text-light); }
.text-muted { color: var(--text-muted); }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 2rem; }
.mt-8 { margin-top: 3rem; }
.mt-10 { margin-top: 4rem; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 2rem; }
.mb-8 { margin-bottom: 3rem; }
.mb-10 { margin-bottom: 4rem; }

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--header-height);
    background: transparent;
    transition: all var(--transition);
    display: flex;
    align-items: center;
}

.header.scrolled {
    height: var(--header-scrolled-height);
    background: var(--bg-white);
    box-shadow: var(--shadow-sm);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    z-index: 1001;
}

.header-logo .logo-icon {
    width: 36px;
    height: 36px;
}

.header-logo .logo-text {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--bg-white);
    transition: color var(--transition);
}

.header.scrolled .header-logo .logo-text {
    color: var(--primary);
}

.header-logo .logo-text span {
    color: var(--secondary);
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.header-nav ul {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 2rem;
}

.header-nav a {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--bg-white);
    text-decoration: none;
    transition: color var(--transition-fast);
    position: relative;
    padding: 0.5rem 0;
}

.header.scrolled .header-nav a {
    color: var(--text-dark);
}

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

.header-nav a:hover::after,
.header-nav a.active::after {
    width: 100%;
}

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

.header.scrolled .header-nav a:hover {
    color: var(--secondary);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.language-switcher {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.8125rem;
    font-weight: 500;
}

.language-switcher button {
    background: none;
    border: none;
    color: var(--bg-white);
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius);
    transition: all var(--transition-fast);
    font-family: var(--font-sans);
}

.header.scrolled .language-switcher button {
    color: var(--text-light);
}

.language-switcher button:hover,
.language-switcher button.active {
    background: rgba(255, 255, 255, 0.15);
    color: var(--secondary);
}

.header.scrolled .language-switcher button:hover,
.header.scrolled .language-switcher button.active {
    background: var(--bg-light);
    color: var(--primary);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.mobile-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--bg-white);
    transition: all var(--transition);
}

.header.scrolled .mobile-toggle span {
    background-color: var(--text-dark);
}

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

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

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

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--bg-white);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.hero-inner {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: 6rem 1.5rem 4rem;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

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

.hero h1 {
    color: var(--bg-white);
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.hero h1 .highlight {
    color: var(--accent);
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 4rem;
}

.hero-stats {
    padding-top: 3rem;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

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

.hero-stat .stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.hero-stat .stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.8);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-size: 0.9375rem;
    font-weight: 600;
    font-family: var(--font-sans);
    border-radius: var(--radius);
    border: 2px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition);
    white-space: nowrap;
    line-height: 1.5;
}

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

.btn-primary {
    background-color: var(--secondary);
    color: var(--bg-white);
    border-color: var(--secondary);
}

.btn-primary:hover:not(:disabled) {
    background-color: #a50d25;
    border-color: #a50d25;
    color: var(--bg-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--primary);
    color: var(--bg-white);
    border-color: var(--primary);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--primary-light);
    border-color: var(--primary-light);
    color: var(--bg-white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-outline:hover:not(:disabled) {
    background-color: var(--primary);
    color: var(--bg-white);
    transform: translateY(-2px);
}

.btn-ghost {
    background-color: transparent;
    color: var(--bg-white);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-ghost:hover:not(:disabled) {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--bg-white);
    border-color: var(--bg-white);
}

.btn-light {
    background-color: var(--bg-white);
    color: var(--primary);
    border-color: var(--bg-white);
}

.btn-light:hover:not(:disabled) {
    background-color: var(--bg-light);
    color: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-block {
    width: 100%;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
}

.card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    overflow: hidden;
    transition: all var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.card-header {
    padding: 1.5rem 1.5rem 0;
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-light);
    background: var(--bg-light);
}

.card-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.75rem;
}

.card-text {
    color: var(--text-body);
    font-size: 0.9375rem;
    line-height: 1.6;
}

.card-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--bg-light);
    color: var(--primary);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-full);
    margin-bottom: 0.75rem;
}

.card-tag.secondary {
    background: rgba(200, 16, 46, 0.1);
    color: var(--secondary);
}

.card-tag.accent {
    background: rgba(27, 58, 92, 0.1);
    color: var(--primary);
}

.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.feature-card {
    text-align: center;
    padding: 2rem;
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: rgba(27, 58, 92, 0.1);
    color: var(--primary);
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
    font-size: 1.75rem;
    transition: all var(--transition);
}

.feature-card:hover .feature-icon {
    background: var(--primary);
    color: var(--bg-white);
    transform: scale(1.1) rotate(5deg);
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--text-light);
    font-size: 0.9375rem;
}

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

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

.counter-item {
    text-align: center;
    padding: 2rem 1rem;
}

.counter-item .counter-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.counter-item .counter-label {
    font-size: 0.9375rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.testimonial {
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    position: relative;
}

.testimonial::before {
    content: '\201C';
    position: absolute;
    top: 1.5rem;
    left: 1.5rem;
    font-size: 4rem;
    color: var(--primary);
    opacity: 0.2;
    font-family: var(--font-serif);
    line-height: 1;
}

.testimonial-content {
    font-size: 1rem;
    color: var(--text-body);
    line-height: 1.7;
    margin-bottom: 1.5rem;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.testimonial-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--bg-light);
    overflow: hidden;
}

.testimonial-info .name {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 1rem;
}

.testimonial-info .role {
    font-size: 0.875rem;
    color: var(--text-light);
}

.news-card {
    display: flex;
    flex-direction: column;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    height: 100%;
}

.news-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.news-card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.news-card-body {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.news-card-date {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

.news-card h3 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.news-card p {
    color: var(--text-light);
    font-size: 0.9375rem;
    margin-bottom: 1rem;
    flex: 1;
}

.news-card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.875rem;
    text-decoration: none;
    transition: gap var(--transition-fast);
}

.news-card-link:hover {
    gap: 0.625rem;
    color: var(--secondary);
}

.cta-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--bg-white);
    text-align: center;
}

.cta-section h2 {
    color: var(--bg-white);
    margin-bottom: 1rem;
}

.cta-section p {
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin: 0 auto 2.5rem;
}

.cta-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.footer {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, 0.8);
}

.footer-top {
    padding: 4rem 0 3rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
}

.footer-brand {
    max-width: 350px;
}

.footer-brand .logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.footer-brand .logo-text {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--bg-white);
}

.footer-brand .logo-text span {
    color: var(--secondary);
}

.footer-brand p {
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.footer-social {
    display: flex;
    gap: 0.75rem;
}

.footer-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: var(--bg-white);
    transition: all var(--transition);
}

.footer-social a:hover {
    background: var(--secondary);
    transform: translateY(-3px);
}

.footer-col h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--bg-white);
    margin-bottom: 1.25rem;
}

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

.footer-col ul li {
    margin-bottom: 0.625rem;
}

.footer-col ul a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding: 1.5rem 0;
    text-align: center;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-legal {
    display: flex;
    gap: 1.5rem;
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

.footer-legal a:hover {
    color: var(--bg-white);
}

.partners-section {
    background: var(--bg-light);
    padding: 3rem 0;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
    align-items: center;
}

.partner-item {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    transition: all var(--transition);
}

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

.partner-item img {
    max-height: 40px;
    opacity: 0.7;
    transition: opacity var(--transition);
    filter: grayscale(50%);
}

.partner-item:hover img {
    opacity: 1;
    filter: grayscale(0%);
}

.breadcrumb {
    background: var(--bg-light);
    padding: 1rem 0;
    border-bottom: 1px solid var(--border);
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 0.5rem;
    font-size: 0.875rem;
}

.breadcrumb-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.breadcrumb-list li:not(:last-child)::after {
    content: '/';
    color: var(--text-muted);
}

.breadcrumb-list a {
    color: var(--text-light);
    text-decoration: none;
}

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

.breadcrumb-list .current {
    color: var(--text-dark);
    font-weight: 500;
}

.page-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--bg-white);
    padding: 5rem 0 4rem;
    text-align: center;
}

.page-header h1 {
    color: var(--bg-white);
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 1rem;
}

.page-header p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.125rem;
    max-width: 700px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.form-control {
    width: 100%;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    font-family: var(--font-sans);
    color: var(--text-dark);
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all var(--transition-fast);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(27, 58, 92, 0.1);
}

.form-control::placeholder {
    color: var(--text-muted);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

.form-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-checkbox input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

.form-checkbox label {
    font-size: 0.9375rem;
    color: var(--text-body);
}

.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    font-size: 0.9375rem;
}

.alert-success {
    background: rgba(27, 58, 92, 0.1);
    color: var(--primary);
    border: 1px solid rgba(27, 58, 92, 0.2);
}

.alert-error {
    background: rgba(200, 16, 46, 0.1);
    color: var(--secondary);
    border: 1px solid rgba(200, 16, 46, 0.2);
}

.alert-info {
    background: rgba(27, 58, 92, 0.1);
    color: var(--primary);
    border: 1px solid rgba(27, 58, 92, 0.2);
}

.tabs {
    display: flex;
    border-bottom: 2px solid var(--border);
    margin-bottom: 2rem;
    overflow-x: auto;
}

.tab {
    padding: 1rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-light);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all var(--transition-fast);
    white-space: nowrap;
    background: none;
    border-top: none;
    border-left: none;
    border-right: none;
    font-family: var(--font-sans);
}

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

.tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: var(--bg-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 0.5rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition);
    z-index: 100;
}

.dropdown:hover .dropdown-menu,
.dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: 0.625rem 1rem;
    color: var(--text-body);
    font-size: 0.9375rem;
    border-radius: var(--radius);
    transition: all var(--transition-fast);
}

.dropdown-menu a:hover {
    background: var(--bg-light);
    color: var(--primary);
}

.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: var(--bg-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary-light);
    transform: translateY(-4px);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

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

.animate-fadeIn {
    animation: fadeIn 0.6s ease forwards;
}

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease forwards;
}

.animate-fadeInDown {
    animation: fadeInDown 0.6s ease forwards;
}

.animate-slideUp {
    animation: slideUp 0.6s ease forwards;
}

.animate-slideDown {
    animation: slideDown 0.6s ease forwards;
}

.animate-slideInLeft {
    animation: slideInLeft 0.6s ease forwards;
}

.animate-slideInRight {
    animation: slideInRight 0.6s ease forwards;
}

.animate-scaleIn {
    animation: scaleIn 0.5s ease forwards;
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

@media (max-width: 1200px) {
    .container {
        max-width: 1140px;
    }

    .grid-4 {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2.5rem;
    }
}

@media (max-width: 992px) {
    :root {
        --header-height: 64px;
    }

    .container {
        max-width: 960px;
        padding: 0 1.25rem;
    }

    .section {
        padding: 4rem 0;
    }

    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-stats {
        gap: 2rem;
    }

    .header-nav {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--bg-white);
        padding: 5rem 2rem 2rem;
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
        z-index: 999;
    }

    .header-nav.active {
        display: flex;
    }

    .header-nav ul {
        flex-direction: column;
        gap: 1.5rem;
    }

    .header-nav a {
        color: var(--text-dark);
        font-size: 1.125rem;
    }

    .mobile-toggle {
        display: flex;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    .container {
        max-width: 720px;
        padding: 0 1rem;
    }

    .section {
        padding: 3rem 0;
    }

    .section-header {
        margin-bottom: 2.5rem;
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .hero {
        min-height: 90vh;
    }

    .hero-inner {
        padding: 5rem 1rem 3rem;
    }

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

    .hero-actions .btn {
        width: 100%;
        max-width: 280px;
    }

    .hero-stats {
        gap: 1.5rem;
        padding-top: 2rem;
    }

    .hero-stat .stat-number {
        font-size: 2rem;
    }

    .counter-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

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

    .cta-actions .btn {
        width: 100%;
        max-width: 280px;
    }

    .footer-bottom .container {
        flex-direction: column;
        text-align: center;
    }

    /* 旧版页头（.header）规则，限定作用域后不再误隐藏 VeriQa .site-header 里的登录按钮 */
    .header .header-actions .btn:not(.btn-icon) {
        display: none;
    }

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

    .testimonial {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

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

    .btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.875rem;
    }

    .btn-lg {
        padding: 0.875rem 1.5rem;
        font-size: 0.9375rem;
    }

    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }

    .card-image {
        height: 180px;
    }

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

    .footer-social {
        justify-content: center;
    }
}

/* Insights Section Styles */
.insights-section {
    padding: 5rem 0;
    background: var(--bg-light);
}

.section-head {
    margin-bottom: 3rem;
}

.section-head .section-eyebrow {
    display: inline-block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.75rem;
}

.section-head h2 {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.section-head p {
    color: var(--text-light);
    font-size: 1.0625rem;
    line-height: 1.7;
}

.insights-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

@media (max-width: 992px) {
    .insights-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .insights-grid {
        grid-template-columns: 1fr;
    }
}

.insight-card {
    background: var(--bg-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
    position: relative;
}

.insight-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.insight-card .ic-img {
    width: 100%;
    height: 220px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.insight-card .ic-icon-wrap {
    position: absolute;
    top: 160px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}

.insight-card .ic-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    border: 4px solid var(--bg-white);
}

.insight-card .ic-icon.ic-gold {
    background: var(--accent);
    color: var(--bg-white);
}

.insight-card .ic-icon.ic-blue {
    background: #3B82F6;
    color: var(--bg-white);
}

.insight-card .ic-icon.ic-red {
    background: var(--secondary);
    color: var(--bg-white);
}

.insight-card .ic-body {
    padding: 3.5rem 1.75rem 2rem;
    text-align: center;
}

.insight-card .ic-body h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 0.75rem;
}

.insight-card .ic-body p {
    color: var(--text-light);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: 1.25rem;
}

.insight-card .ic-link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9375rem;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.insight-card .ic-link:hover {
    gap: 0.625rem;
    color: var(--secondary);
}

.insight-card .ic-link i {
    font-size: 1rem;
}

/* ============================================================
   中文排版适配：仅对 lang="zh-CN" 生效，英文站完全不受影响
   汉字无大小写、字形方正饱满：需要更透气行距、归零负字距、取消大写装饰与宽字距
   ============================================================ */
html[lang="zh-CN"] {
    --lh-body: 1.8;
    --lh-heading: 1.45;
    --tracking-eyebrow: 0.04em;
    --tracking-wide: 0.02em;
    /* 中文标题不走宋体：屏显 700 字重下宋体是伪粗、容易发虚，改用黑体系；
       拉丁字形仍走 Inter，保证中英混排（如 VeriQa、数字统计）风格不断层 */
    --font-serif: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Source Han Sans SC',
        'Noto Sans SC', 'Microsoft YaHei', 'WenQuanYi Micro Hei', sans-serif;
}

/* 负字距会让汉字互相挤压，中文站一律归零 */
html[lang="zh-CN"] h1,
html[lang="zh-CN"] h2,
html[lang="zh-CN"] h3,
html[lang="zh-CN"] h4,
html[lang="zh-CN"] h5,
html[lang="zh-CN"] h6,
html[lang="zh-CN"] [class*="title"],
html[lang="zh-CN"] [class*="head"] {
    letter-spacing: normal;
}

/* uppercase + 宽字距是小号拉丁标签的装饰：中文无大写，宽字距只会显得松散 */
html[lang="zh-CN"] [class*="eyebrow"],
html[lang="zh-CN"] [class*="kicker"],
html[lang="zh-CN"] [class*="badge"],
html[lang="zh-CN"] [class*="tag"],
html[lang="zh-CN"] [class*="label"],
html[lang="zh-CN"] [class*="cat"] {
    text-transform: none;
    letter-spacing: 0.04em;
}