/* ========== 关于我们页面 V2 - 专业质感版 ========== */

/* --- 全局变量 --- */
:root {
    --primary: #2563eb;
    --primary-light: #60a5fa;
    --primary-lighter: #eff6ff;
    --accent: #f59e0b;
    --accent-light: #fbbf24;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
}

/* ========== ① Hero Banner ========== */
.about-hero {
    position: relative;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    text-align: center;
}

.about-hero-bg {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 0;
}

.about-hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.about-hero-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(180deg, rgba(255,255,255,0.2) 0%, rgba(240,247,255,0.5) 100%);
    z-index: 1;
}

.about-hero-content {
    position: relative;
    z-index: 2;
    padding: 0 20px;
}

.about-hero h1 {
    font-size: 36px;
    font-weight: 700;
    color: #0f172a;
    line-height: 1.4;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.hero-subtitle {
    font-size: 15px;
    font-weight: 400;
    color: #94a3b8;
    letter-spacing: 1px;
}

@media (max-width: 768px) {
    .about-hero {
        min-height: 300px;
    }
    .about-hero h1 {
        font-size: 28px;
        letter-spacing: 1px;
    }
    .hero-subtitle {
        font-size: 14px;
    }
}

/* ========== ② 公司介绍 ========== */
.about-intro {
    padding: 100px 0;
}

.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.intro-text h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 24px;
    line-height: 1.3;
}

.intro-text h2 span {
    color: var(--primary);
}

.intro-text p {
    font-size: 16px;
    color: var(--gray-500);
    line-height: 1.8;
    margin-bottom: 20px;
}

.intro-meta {
    display: flex;
    gap: 32px;
    margin-top: 32px;
    padding-top: 32px;
    border-top: 1px solid var(--gray-200);
}

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

.intro-meta-item .label {
    font-size: 13px;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.intro-meta-item .value {
    font-size: 18px;
    font-weight: 700;
    color: var(--gray-800);
}

.intro-visual {
    position: relative;
    height: 400px;
    border-radius: 20px;
    overflow: hidden;
    background: linear-gradient(135deg, #1e40af, #3b82f6);
}

.intro-visual .intro-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* ========== ③ 数据信任条 ========== */
.about-stats {
    padding: 80px 0;
    border-top: 1px solid var(--gray-200);
    border-bottom: 1px solid var(--gray-200);
}

.stats-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
}

.stat-item {
    text-align: center;
    flex: 1;
    position: relative;
    padding: 0 24px;
}

.stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 50px;
    background: linear-gradient(180deg, transparent, var(--gray-300), transparent);
}

.stat-number {
    font-size: 42px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 8px;
    font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
}

.stat-number .unit {
    font-size: 20px;
    color: var(--primary-light);
    font-weight: 600;
}

.stat-label {
    font-size: 14px;
    color: var(--gray-500);
    letter-spacing: 0.5px;
}

/* ========== ④ 品牌理念 ========== */
.about-mission {
    padding: 80px 0;
}

.mission-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.mission-card {
    background: #fff;
    border-radius: 24px;
    padding: 48px 36px;
    text-align: center;
    border: 1px solid var(--gray-200);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.mission-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    transform: scaleX(0);
    transform-origin: center;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.mission-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 24px 48px rgba(30,64,175,0.1);
    border-color: var(--primary-lighter);
}

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

.mission-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 28px;
    background: linear-gradient(135deg, var(--primary-lighter), #eff6ff);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.mission-icon svg {
    width: 32px;
    height: 32px;
    color: var(--primary);
}

.mission-tag {
    font-size: 12px;
    font-weight: 700;
    color: var(--primary-light);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 16px;
}

.mission-card h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
}

.mission-card p {
    font-size: 15px;
    color: var(--gray-500);
    line-height: 1.8;
}

/* ========== ⑤ 核心团队 ========== */
.about-team {
    padding: 80px 0;
}

.founders-section {
    margin-bottom: 100px;
}

.founders-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 960px;
    margin: 0 auto;
}

.founder-card {
    background: linear-gradient(145deg, var(--gray-50), #fff);
    border-radius: 24px;
    padding: 48px;
    border: 1px solid var(--gray-200);
    display: flex;
    gap: 32px;
    align-items: flex-start;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.founder-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 4px; height: 100%;
    background: linear-gradient(180deg, var(--primary), var(--primary-light));
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 0.4s;
}

.founder-card:hover {
    box-shadow: 0 20px 40px rgba(30,64,175,0.08);
    transform: translateY(-4px);
}

.founder-card:hover::before {
    transform: scaleY(1);
}

.founder-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), #3b82f6);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
    border: 4px solid var(--primary-lighter);
    position: relative;
    overflow: hidden;
}

.founder-avatar::after {
    content: '';
    position: absolute;
    top: -50%; left: -50%;
    width: 200%; height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.1), transparent);
    animation: avatar-shine 3s ease-in-out infinite;
}

@keyframes avatar-shine {
    0% { transform: translateX(-100%) rotate(45deg); }
    100% { transform: translateX(100%) rotate(45deg); }
}

.founder-info h4 {
    font-size: 22px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.founder-role {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.founder-role .title {
    font-size: 15px;
    color: var(--primary);
    font-weight: 600;
}

.founder-role .badge {
    background: linear-gradient(135deg, #ff6a00, #ff8c00);
    color: #fff;
    font-size: 11px;
    padding: 4px 10px;
    border-radius: 4px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.founder-info p {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.8;
}

.team-structure {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    max-width: 1000px;
    margin: 0 auto;
}

.team-chart-wrap {
    position: relative;
    width: 340px;
    height: 340px;
    margin: 0 auto;
}

.team-chart-wrap svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
    filter: drop-shadow(0 4px 12px rgba(30,64,175,0.15));
}

.team-chart-center {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.team-chart-center .num {
    font-size: 48px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    font-family: 'SF Mono', monospace;
}

.team-chart-center .label {
    font-size: 14px;
    color: var(--gray-400);
    margin-top: 6px;
}

.team-legend {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 24px;
    background: var(--gray-50);
    border-radius: 14px;
    transition: all 0.3s;
    border: 1px solid transparent;
}

.legend-item:hover {
    background: #fff;
    border-color: var(--primary-lighter);
    transform: translateX(6px);
    box-shadow: 0 4px 16px rgba(30,64,175,0.06);
}

.legend-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    flex-shrink: 0;
    box-shadow: 0 0 0 4px rgba(0,0,0,0.05);
}

.legend-info {
    flex: 1;
}

.legend-info .name {
    font-size: 16px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 2px;
}

.legend-info .desc {
    font-size: 13px;
    color: var(--gray-400);
}

.legend-percent {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
    font-family: 'SF Mono', monospace;
}

/* ========== ⑥ 发展历程 ========== */
.about-timeline {
    padding: 80px 0;
}

.timeline-wrapper {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--primary), var(--primary-light), var(--primary-lighter));
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 80px 1fr;
    gap: 40px;
    margin-bottom: 64px;
    align-items: start;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-item:nth-child(even) .timeline-content {
    grid-column: 3;
    text-align: left;
}

.timeline-item:nth-child(even) .timeline-year-badge {
    grid-column: 1;
    grid-row: 1;
    justify-self: end;
    text-align: right;
}

.timeline-item:nth-child(odd) .timeline-content {
    text-align: right;
}

.timeline-dot {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), #3b82f6);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 2;
    margin: 0 auto;
    box-shadow: 0 0 0 8px rgba(30,64,175,0.1), 0 4px 20px rgba(30,64,175,0.3);
}

.timeline-dot svg {
    width: 24px;
    height: 24px;
    color: #fff;
}

.timeline-year-badge {
    font-size: 13px;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 2px;
    text-transform: uppercase;
    padding-top: 16px;
}

.timeline-content h4 {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 10px;
    line-height: 1.4;
}

.timeline-content p {
    font-size: 15px;
    color: var(--gray-500);
    line-height: 1.7;
}

.timeline-content .tag {
    display: inline-block;
    margin-top: 12px;
    font-size: 12px;
    padding: 6px 14px;
    border-radius: 20px;
    font-weight: 600;
    background: var(--primary-lighter);
    color: var(--primary);
}

/* ========== ⑦ 资质荣誉 ========== */
.about-honors {
    padding: 80px 0;
}

.honors-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.honor-card {
    background: linear-gradient(145deg, #fff, var(--gray-50));
    border-radius: 20px;
    padding: 36px 28px;
    text-align: center;
    border: 1px solid var(--gray-200);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.honor-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(30,64,175,0.1);
    border-color: var(--primary-lighter);
}

.honor-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    transform: scaleX(0);
    transition: transform 0.4s;
}

.honor-card:hover::after {
    transform: scaleX(1);
}

.honor-icon-wrap {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-lighter), #eff6ff);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.honor-icon-wrap svg {
    width: 32px;
    height: 32px;
    color: var(--primary);
}

.honor-card h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
    line-height: 1.4;
}

.honor-card .issuer {
    font-size: 13px;
    color: var(--gray-400);
    margin-bottom: 12px;
}

.honor-status {
    display: inline-block;
    font-size: 12px;
    padding: 5px 14px;
    border-radius: 20px;
    font-weight: 600;
}

.honor-status.pending {
    background: #fef3c7;
    color: #b45309;
}

.honor-status.done {
    background: #d1fae5;
    color: #047857;
}

/* ========== ⑧ 合作资源 ========== */
.about-partners {
    padding: 80px 0;
}

.partner-category {
    margin-bottom: 48px;
}

.partner-category:last-child {
    margin-bottom: 0;
}

.partner-category h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--gray-700);
    margin-bottom: 20px;
    text-align: center;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.partner-cloud {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 14px;
}

.partner-tag {
    padding: 14px 28px;
    background: #fff;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-600);
    border: 1.5px solid var(--gray-200);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: default;
    position: relative;
    overflow: hidden;
}

.partner-tag::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 4px; height: 100%;
    background: var(--primary);
    transform: scaleY(0);
    transition: transform 0.3s;
}

.partner-tag:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(30,64,175,0.2);
}

.partner-tag:hover::before {
    transform: scaleY(1);
}

.partner-tag.highlight {
    border-color: var(--primary);
    color: var(--primary);
}

.partner-tag.highlight:hover {
    background: var(--primary);
    color: #fff;
}

/* ========== ⑩ 社会责任 ========== */
.about-csr {
    padding: 80px 0;
}

.csr-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.csr-card {
    background: #fff;
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid var(--gray-200);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.csr-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 24px 48px rgba(30,64,175,0.1);
    border-color: var(--primary-lighter);
}

.csr-visual {
    height: 220px;
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.csr-visual::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background:
        radial-gradient(circle at 30% 30%, rgba(59,130,246,0.3) 0%, transparent 50%),
        radial-gradient(circle at 70% 70%, rgba(245,158,11,0.15) 0%, transparent 40%);
}

.csr-visual::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
    background-size: 30px 30px;
}

.csr-visual svg {
    width: 64px;
    height: 64px;
    color: rgba(255,255,255,0.9);
    position: relative;
    z-index: 1;
}

.csr-content {
    padding: 32px;
}

.csr-content h4 {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.csr-content p {
    font-size: 14px;
    color: var(--gray-500);
    line-height: 1.7;
    margin-bottom: 20px;
}

.csr-stat {
    display: inline-flex;
    align-items: baseline;
    gap: 6px;
    background: var(--primary-lighter);
    padding: 10px 20px;
    border-radius: 10px;
}

.csr-stat .num {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    font-family: 'SF Mono', monospace;
}

.csr-stat .unit {
    font-size: 13px;
    color: var(--gray-500);
}

/* ========== ⑪ 底部 CTA ========== */
.about-cta {
    padding: 100px 0;
    background: linear-gradient(135deg, #1e3a8a, #2563eb);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.about-cta::before {
    content: '';
    position: absolute;
    top: -50%; left: -50%;
    right: -50%; bottom: -50%;
    background: radial-gradient(circle at 30% 50%, rgba(245,158,11,0.08) 0%, transparent 50%);
    pointer-events: none;
}

.about-cta h2 {
    font-size: 40px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
    position: relative;
    letter-spacing: -0.5px;
}

.about-cta p {
    font-size: 18px;
    color: rgba(255,255,255,0.6);
    margin-bottom: 40px;
    position: relative;
}

.cta-buttons {
    display: inline-flex;
    gap: 16px;
    position: relative;
}

.cta-btn-primary {
    background: linear-gradient(135deg, var(--accent-light), var(--accent));
    color: var(--gray-900);
    padding: 16px 40px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}

.cta-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(245,158,11,0.3);
}

.cta-btn-outline {
    background: transparent;
    color: #fff;
    padding: 16px 40px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    border: 2px solid rgba(255,255,255,0.25);
    transition: all 0.3s;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}

.cta-btn-outline:hover {
    background: rgba(255,255,255,0.08);
    border-color: rgba(255,255,255,0.5);
}


/* ========== 企业文化 ========== */
.about-culture {
    padding: 80px 0;
}

.culture-grid {
    display: flex;
    flex-direction: column;
    gap: 32px;
    max-width: 900px;
    margin: 0 auto;
}

.culture-card {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 40px;
    align-items: center;
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid var(--gray-200);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.culture-card:nth-child(even) {
    grid-template-columns: 1fr 280px;
}

.culture-card:nth-child(even) .culture-img-wrap {
    order: 2;
}

.culture-card:nth-child(even) .culture-content {
    order: 1;
    padding-left: 40px;
    padding-right: 0;
}

.culture-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(37,99,235,0.08);
    border-color: var(--primary-lighter);
}

.culture-img-wrap {
    height: 220px;
    overflow: hidden;
    position: relative;
}

.culture-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.culture-card:hover .culture-img-wrap img {
    transform: scale(1.05);
}

.culture-content {
    padding: 32px 40px 32px 0;
}

.culture-content h3 {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 12px;
    position: relative;
    display: inline-block;
}

.culture-content h3::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    border-radius: 2px;
}

.culture-slogan {
    font-size: 15px;
    color: var(--gray-400);
    margin-bottom: 16px;
    margin-top: 16px;
    font-style: italic;
}

.culture-desc {
    font-size: 15px;
    color: var(--gray-600);
    line-height: 1.8;
}

@media (max-width: 768px) {
    .culture-card,
    .culture-card:nth-child(even) {
        grid-template-columns: 1fr;
    }
    .culture-card:nth-child(even) .culture-img-wrap,
    .culture-card:nth-child(even) .culture-content {
        order: unset;
    }
    .culture-img-wrap {
        height: 180px;
    }
    .culture-content {
        padding: 24px;
    }
    .culture-card:nth-child(even) .culture-content {
        padding-left: 24px;
    }
}

/* ========== 滚动动画 ========== */
.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.9s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.active {
    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; }

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .intro-grid { grid-template-columns: 1fr; }
    .mission-grid { grid-template-columns: 1fr; }
    .founders-grid { grid-template-columns: 1fr; }
    .team-structure { grid-template-columns: 1fr; gap: 48px; }
    .honors-grid { grid-template-columns: repeat(2, 1fr); }
    .ip-grid { grid-template-columns: repeat(2, 1fr); }
    .csr-grid { grid-template-columns: 1fr; }
    .stats-row { flex-wrap: wrap; }
    .stat-item { min-width: 45%; }
    .stat-item:not(:last-child)::after { display: none; }
    .hero-tech-visual { display: none; }
}

@media (max-width: 768px) {
    .about-hero { min-height: 250px; }
    .about-hero h1 { font-size: 32px; }
    .hero-desc { font-size: 16px; }
    .hero-slogan { font-size: 16px; letter-spacing: 3px; padding: 10px 20px; }
    .intro-text h2 { font-size: 28px; }
    .intro-meta { flex-direction: column; gap: 16px; }
    .stat-item { min-width: 100%; }
    .timeline-item { grid-template-columns: 1fr; gap: 16px; }
    .timeline-line { left: 28px; }
    .timeline-dot { margin: 0; width: 48px; height: 48px; }
    .timeline-content { text-align: left !important; padding-left: 64px; }
    .timeline-year-badge { text-align: left !important; padding-left: 64px; padding-top: 0; }
    .honors-grid { grid-template-columns: 1fr; }
    .ip-grid { grid-template-columns: 1fr; }
    .about-cta h2 { font-size: 28px; }
    .cta-buttons { flex-direction: column; }
    .section-header h2 { font-size: 28px; }
}