/**
 * Winzheng Research Lab - 关于页面样式
 * 与关于我们页面风格一致
 */

/* ========== 基础变量 ========== */
:root {
    --bg-dark: #08080a;
    --bg-card: #0d0d0f;
    --bg-card-hover: #111113;
    --text-primary: #f5f5f5;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --border-dark: rgba(255,255,255,0.06);
    --border-light: rgba(255,255,255,0.12);
    --accent-blue: #00d4ff;
    --accent-purple: #a855f7;
    --accent-gold: #d4a24c;
    --accent-green: #10b981;
}

.lab-body {
    background: var(--bg-dark);
    color: var(--text-primary);
}

.lab-page {
    min-height: 100vh;
}

/* ========== HERO 区域 ========== */
.lab-page .hero-section {
    position: relative;
    padding: 80px 20px 60px;
    text-align: center;
    overflow: hidden;
}

.lab-page .hero-bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 50% 0%, rgba(212,162,76,0.08) 0%, transparent 60%),
        linear-gradient(rgba(212,162,76,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(212,162,76,0.02) 1px, transparent 1px);
    background-size: 100% 100%, 50px 50px, 50px 50px;
    pointer-events: none;
}

.lab-page .hero-container {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.lab-page .hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 20px;
    background: rgba(212,162,76,0.1);
    border: 1px solid rgba(212,162,76,0.3);
    border-radius: 25px;
    font-size: 12px;
    font-weight: 500;
    color: var(--accent-gold);
    letter-spacing: 1px;
    margin-bottom: 25px;
    text-transform: uppercase;
}

.lab-page .hero-badge i {
    font-size: 14px;
}

.lab-page .hero-title {
    font-family: 'Noto Serif SC', serif;
    font-size: clamp(32px, 6vw, 48px);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.lab-page .hero-title .hl {
    background: linear-gradient(135deg, var(--accent-gold), #f5d799);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.lab-page .hero-slogan {
    font-size: 18px;
    color: var(--text-secondary);
    margin: 0 0 8px 0;
    font-style: italic;
    letter-spacing: 1px;
}

.lab-page .hero-slogan-cn {
    font-size: 16px;
    color: var(--text-muted);
    margin: 0;
}

/* ========== 介绍区域 ========== */
.intro-section {
    padding: 60px 20px;
    background: var(--bg-card);
    border-top: 1px solid var(--border-dark);
}

.intro-container {
    max-width: 760px;
    margin: 0 auto;
}

.intro-block {
    font-size: 17px;
    line-height: 2;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.intro-block p {
    margin-bottom: 18px;
}

.intro-block strong {
    color: var(--accent-gold);
    font-weight: 600;
}

.intro-block em {
    color: var(--accent-blue);
    font-style: normal;
    font-weight: 500;
}

/* 使命 */
.mission-block {
    text-align: center;
    padding: 40px 30px;
    background: linear-gradient(135deg, rgba(212,162,76,0.08) 0%, rgba(168,85,247,0.04) 100%);
    border: 1px solid rgba(212,162,76,0.2);
    border-radius: 16px;
}

.mission-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(212,162,76,0.15);
    border-radius: 50%;
    font-size: 24px;
    color: var(--accent-gold);
}

.mission-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--accent-gold);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 15px;
}

.mission-text {
    font-family: 'Noto Serif SC', serif;
    font-size: 22px;
    font-weight: 600;
    line-height: 1.6;
    color: var(--text-primary);
}

.mission-text .hl {
    color: var(--accent-gold);
}

/* ========== 核心工作 ========== */
.core-section {
    padding: 60px 20px;
    background: var(--bg-dark);
    border-top: 1px solid var(--border-dark);
}

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

.section-tag {
    display: block;
    font-size: 11px;
    font-weight: 600;
    color: var(--accent-gold);
    letter-spacing: 3px;
    margin-bottom: 10px;
}

.section-header h2 {
    font-family: 'Noto Serif SC', serif;
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.core-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    max-width: 1000px;
    margin: 0 auto;
}

.core-card {
    background: var(--bg-card);
    border: 1px solid var(--border-dark);
    border-radius: 14px;
    padding: 30px 25px;
    position: relative;
    transition: all 0.3s;
}

.core-card:hover {
    border-color: rgba(212,162,76,0.3);
    transform: translateY(-4px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.3);
}

.core-card--primary {
    background: linear-gradient(135deg, rgba(212,162,76,0.08) 0%, rgba(0,0,0,0) 100%);
    border-color: rgba(212,162,76,0.25);
}

.core-num {
    position: absolute;
    top: 20px;
    right: 20px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--text-muted);
    opacity: 0.5;
}

.core-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(212,162,76,0.1);
    border-radius: 12px;
    font-size: 22px;
    color: var(--accent-gold);
    margin-bottom: 20px;
}

.core-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 6px 0;
}

.core-en {
    font-size: 12px;
    color: var(--text-muted);
    margin: 0 0 15px 0;
    font-style: italic;
}

.core-desc {
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin: 0;
}

.core-desc strong {
    color: var(--accent-gold);
}

.core-quote {
    margin-top: 18px;
    padding-top: 15px;
    border-top: 1px solid var(--border-dark);
    font-size: 13px;
    color: var(--text-muted);
    font-style: italic;
}

.core-quote em {
    color: var(--accent-blue);
    font-style: normal;
}

/* ========== 独立声明 ========== */
.independence-section {
    padding: 60px 20px;
    background: var(--bg-card);
    border-top: 1px solid var(--border-dark);
}

.independence-container {
    max-width: 760px;
    margin: 0 auto;
    text-align: center;
    padding: 40px;
    background: var(--bg-dark);
    border: 1px solid var(--border-dark);
    border-radius: 16px;
    position: relative;
}

.independence-icon {
    width: 50px;
    height: 50px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(16,185,129,0.1);
    border-radius: 50%;
    font-size: 22px;
    color: var(--accent-green);
}

.independence-container h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 25px 0;
}

.independence-zh {
    font-size: 15px;
    line-height: 1.9;
    color: var(--text-secondary);
    margin: 0 0 20px 0;
}

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

.independence-zh .hl {
    color: var(--accent-green);
    font-weight: 600;
}

.independence-en {
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-muted);
    margin: 0;
    padding-top: 20px;
    border-top: 1px solid var(--border-dark);
    font-style: italic;
}

.independence-en strong {
    color: var(--accent-green);
    font-style: normal;
}

/* ========== English Version ========== */
.english-section {
    padding: 60px 20px;
    background: var(--bg-dark);
    border-top: 1px solid var(--border-dark);
}

.english-container {
    max-width: 760px;
    margin: 0 auto;
}

.lang-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: rgba(0,212,255,0.1);
    border: 1px solid rgba(0,212,255,0.25);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    color: var(--accent-blue);
    margin-bottom: 25px;
}

.en-intro {
    font-size: 15px;
    line-height: 1.9;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.en-intro p {
    margin-bottom: 15px;
}

.en-intro strong {
    color: var(--accent-blue);
}

.en-mission {
    background: rgba(0,212,255,0.05);
    border-left: 3px solid var(--accent-blue);
    padding: 20px 25px;
    margin-bottom: 30px;
    border-radius: 0 10px 10px 0;
}

.en-mission-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--accent-blue);
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.en-mission p {
    font-size: 15px;
    color: var(--text-primary);
    margin: 0;
    font-style: italic;
}

.en-core h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 15px 0;
}

.en-core ol {
    list-style: none;
    padding: 0;
    margin: 0;
    counter-reset: item;
}

.en-core li {
    position: relative;
    padding-left: 30px;
    margin-bottom: 15px;
    font-size: 14px;
    line-height: 1.8;
    color: var(--text-secondary);
    counter-increment: item;
}

.en-core li::before {
    content: counter(item);
    position: absolute;
    left: 0;
    top: 2px;
    width: 20px;
    height: 20px;
    background: rgba(212,162,76,0.15);
    border-radius: 50%;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px;
    color: var(--accent-gold);
    display: flex;
    align-items: center;
    justify-content: center;
}

.en-core li strong {
    color: var(--accent-gold);
}

/* ========== CTA ========== */
.cta-section {
    padding: 50px 20px;
    background: var(--bg-card);
    border-top: 1px solid var(--border-dark);
}

.cta-container {
    max-width: 500px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
}

.cta-btn--primary {
    background: linear-gradient(135deg, var(--accent-gold), #c4923c);
    color: #000;
}

.cta-btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(212,162,76,0.3);
}

.cta-btn--secondary {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-light);
    color: var(--text-secondary);
}

.cta-btn--secondary:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

/* ========== 响应式 ========== */
@media (max-width: 900px) {
    .core-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
    }
}

@media (max-width: 768px) {
    .lab-page .hero-section {
        padding: 60px 15px 50px;
    }
    
    .lab-page .hero-title {
        font-size: 32px;
    }
    
    .intro-section,
    .core-section,
    .independence-section,
    .english-section {
        padding: 50px 15px;
    }
    
    .mission-text {
        font-size: 18px;
    }
    
    .independence-container {
        padding: 30px 20px;
    }
    
    .cta-container {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .lab-page .hero-title {
        font-size: 26px;
    }
    
    .lab-page .hero-slogan {
        font-size: 15px;
    }
    
    .section-header h2 {
        font-size: 22px;
    }
    
    .core-card {
        padding: 25px 20px;
    }
}