:root {
    --about-primary: #2563eb;
    --about-primary-dark: #1e40af;
    --about-slate-900: #0f172a;
    --about-slate-700: #334155;
    --about-slate-500: #64748b;
    --about-bg-soft: #f8fafc;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--about-slate-700);
    background: #ffffff;
}

.about-header-fixed {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.96);
    backdrop-filter: blur(8px);
    box-shadow: 0 2px 12px rgba(15, 23, 42, 0.12);
}

.about-header-fixed .navbar {
    padding: 0.75rem 0;
}

.about-header-fixed .nav-link {
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
}

.about-header-fixed .nav-link.active,
.about-header-fixed .nav-link:hover {
    color: #ffffff;
}

.about-hero {
    padding: 140px 0 64px;
    background: linear-gradient(180deg, #0f172a 0%, #172554 100%);
    color: #ffffff;
    border-bottom: 1px solid rgba(148, 163, 184, 0.24);
}

.about-hero-content {
    max-width: 760px;
}

.about-hero-kicker {
    font-size: 0.8rem;
    letter-spacing: 0.12em;
    color: rgba(255, 255, 255, 0.6);
    font-weight: 700;
    margin-bottom: 10px;
}

.about-hero-title {
    font-size: 2.6rem;
    font-weight: 800;
    margin-bottom: 12px;
    letter-spacing: 0.02em;
}

.about-hero-subtitle {
    font-size: 1.06rem;
    color: rgba(255, 255, 255, 0.78);
    margin: 0;
    max-width: 720px;
    line-height: 1.9;
}

.about-breadcrumb-wrap {
    background: #f8fafc;
    border-bottom: 1px solid #e2e8f0;
    padding: 14px 0;
}

.about-breadcrumb-wrap .breadcrumb-item + .breadcrumb-item::before {
    color: #94a3b8;
}

.about-breadcrumb-wrap .breadcrumb-item a {
    color: var(--about-primary);
    text-decoration: none;
    font-size: 0.86rem;
}

.about-breadcrumb-wrap .breadcrumb-item.active {
    color: #64748b;
    font-size: 0.86rem;
    font-weight: 500;
}

.section-block {
    padding: 72px 0;
}

.section-intro {
    padding-bottom: 56px;
}

.section-stats {
    padding-top: 0;
}

.section-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.86rem;
    color: var(--about-primary);
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 10px;
    position: relative;
    padding-bottom: 10px;
    text-shadow: 0 0 0 rgba(37, 99, 235, 0.25);
    animation: kickerGlow 3.2s ease-in-out infinite;
}

.kicker-icon {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.62rem;
    color: #ffffff;
    background: linear-gradient(135deg, var(--about-primary-dark), var(--about-primary));
    box-shadow: 0 4px 10px rgba(37, 99, 235, 0.28);
}

.section-kicker::before {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 56px;
    height: 2px;
    background: rgba(37, 99, 235, 0.32);
    border-radius: 999px;
}

.section-kicker::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 24px;
    height: 2px;
    background: linear-gradient(90deg, rgba(37, 99, 235, 0), rgba(37, 99, 235, 0.95), rgba(37, 99, 235, 0));
    border-radius: 999px;
    animation: kickerSweep 2.8s ease-in-out infinite;
}

.section-title {
    font-size: 2rem;
    color: var(--about-slate-900);
    font-weight: 800;
    margin-bottom: 0;
}

.section-head {
    margin-bottom: 20px;
}

.section-text {
    color: var(--about-slate-700);
    line-height: 1.9;
    margin-bottom: 1rem;
}

.intro-image-card {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 46px rgba(15, 23, 42, 0.14);
}

.intro-image-card img {
    width: 100%;
    height: 100%;
    min-height: 360px;
    object-fit: cover;
}

.btn-gradient-primary {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(120deg, var(--about-primary-dark), var(--about-primary));
    border: 0;
    color: #ffffff;
    padding: 12px 24px;
    border-radius: 999px;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.btn-gradient-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(37, 99, 235, 0.28);
    color: #ffffff;
}

.section-stats .stat-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
    height: 100%;
}

.section-stats .stat-card-link:hover {
    text-decoration: none;
    color: inherit;
}

.section-stats .stat-card {
    text-align: center;
    background: var(--about-bg-soft);
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    padding: 28px 12px;
    height: 100%;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.section-stats .stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.12);
}

.section-stats .stat-number {
    color: var(--about-primary);
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 6px;
}

.section-stats .stat-label {
    color: var(--about-slate-500);
    font-size: 0.95rem;
}

.section-features {
    background: #ffffff;
}

.feature-card {
    height: 100%;
    border: 1px solid #e5e7eb;
    border-radius: 16px;
    padding: 26px 22px;
    background: #ffffff;
    box-shadow: 0 8px 20px rgba(2, 6, 23, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: rgba(37, 99, 235, 0.35);
    box-shadow: 0 14px 30px rgba(37, 99, 235, 0.12);
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    margin-bottom: 14px;
}

.feature-icon i {
    font-size: 20px;
    color: #2563eb;
}

.feature-title {
    color: var(--about-slate-900);
    font-size: 1.16rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.feature-text {
    color: var(--about-slate-500);
    margin: 0;
    line-height: 1.8;
}

.section-quotes {
    background: var(--about-bg-soft);
}

.quote-card {
    height: 100%;
    margin: 0;
    padding: 24px 22px;
    border-radius: 14px;
    border: 1px solid #e2e8f0;
    background: #ffffff;
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.06);
}

.quote-card p {
    margin: 0 0 14px;
    color: var(--about-slate-700);
    line-height: 1.8;
    min-height: 88px;
}

.quote-card footer {
    color: var(--about-primary);
    font-size: 0.92rem;
    font-weight: 600;
}

.section-offices {
    background: #ffffff;
}

.office-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 14px;
}

.office-list li {
    text-align: center;
    border: 1px solid #dbeafe;
    color: var(--about-primary-dark);
    background: #eff6ff;
    border-radius: 10px;
    padding: 12px 10px;
    font-weight: 600;
}

.section-cta {
    padding-top: 40px;
}

.cta-box {
    border-radius: 18px;
    padding: 42px 26px;
    text-align: center;
    color: #ffffff;
    background: linear-gradient(135deg, #1e3a8a, #2563eb);
    box-shadow: 0 18px 40px rgba(30, 64, 175, 0.28);
}

.cta-box h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 12px;
}

.cta-box p {
    color: rgba(255, 255, 255, 0.88);
    margin-bottom: 22px;
}

.about-footer {
    margin-top: 56px;
    padding: 24px 0 30px;
    background: #0f172a;
    color: #94a3b8;
}

.about-footer .footer-link {
    color: #cbd5e1;
    text-decoration: none;
    margin-left: 18px;
}

.about-footer .footer-link:hover {
    color: #ffffff;
}

@media (max-width: 991px) {
    .about-hero {
        padding: 120px 0 48px;
    }

    .about-hero-title {
        font-size: 2.3rem;
    }

    .section-block {
        padding: 56px 0;
    }

    .section-title {
        font-size: 1.7rem;
    }

    .about-header-fixed .navbar-nav {
        margin-top: 8px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .section-kicker,
    .section-kicker::after {
        animation: none !important;
    }
}

@media (max-width: 576px) {
    .kicker-icon {
        width: 16px;
        height: 16px;
        font-size: 0.56rem;
    }

    .about-hero-title {
        font-size: 1.95rem;
    }

    .section-title {
        font-size: 1.45rem;
    }

    .cta-box h2 {
        font-size: 1.55rem;
    }

    .about-footer .footer-link {
        margin-left: 14px;
    }
}

@keyframes kickerSweep {
    0% {
        transform: translateX(0);
        opacity: 0.35;
    }
    50% {
        transform: translateX(32px);
        opacity: 0.95;
    }
    100% {
        transform: translateX(0);
        opacity: 0.35;
    }
}

@keyframes kickerGlow {
    0%,
    100% {
        opacity: 0.92;
        text-shadow: 0 0 0 rgba(37, 99, 235, 0.15);
    }
    50% {
        opacity: 1;
        text-shadow: 0 0 12px rgba(37, 99, 235, 0.28);
    }
}