/*<style>*/
/* ===== Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    color: #333;
    background: #fff;
    line-height: 1.7;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

/* ===== CSS Variables ===== */
:root {
    --blue: #0052d9;
    --blue-light: #e8f0fe;
    --blue-dark: #003bab;
    --gray-bg: #f5f5f7;
    --gray-line: #e5e5e5;
    --gray-text: #666;
    --dark: #1a1a1a;
    --white: #fff;
    --header-h: 64px;
    --section-pad: 80px;
}

/* ===== TOP NAV ===== */
.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-h);
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-line);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 48px;
}

.nav-logo {
    font-size: 22px;
    font-weight: 700;
    color: var(--blue);
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-logo .logo-icon {
    width: 36px;
    height: 36px;
    /*background: var(--blue);*/
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    font-weight: 900;
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-links > li > a {
    font-size: 15px;
    color: #333;
    padding: 4px 0;
    border-bottom: 2px solid transparent;
    transition: color 0.2s, border-color 0.2s;
}

.nav-links > li > a:hover,
.nav-links > li > a.active {
    color: var(--blue);
    border-bottom-color: var(--blue);
}

.nav-lang {
    display: flex;
    gap: 12px;
    font-size: 13px;
    color: var(--gray-text);
}

.nav-lang a:hover {
    color: var(--blue);
}

/* ===== SIDEBAR (sub-nav) ===== */
.sidebar {
    position: fixed;
    left: 0;
    top: var(--header-h);
    width: 200px;
    height: calc(100vh - var(--header-h));
    background: var(--white);
    border-right: 1px solid var(--gray-line);
    padding: 32px 0;
    overflow-y: auto;
    z-index: 900;
}

.sidebar-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
    padding: 0 24px 16px;
    border-bottom: 1px solid var(--gray-line);
    margin-bottom: 12px;
}

.sidebar ul li a {
    display: block;
    font-size: 14px;
    color: #555;
    padding: 10px 24px;
    border-left: 3px solid transparent;
    transition: all 0.2s;
}

.sidebar ul li a:hover,
.sidebar ul li a.active {
    color: var(--blue);
    border-left-color: var(--blue);
    background: var(--blue-light);
}

/* ===== MAIN CONTENT ===== */
.main-content {
    margin-left: 200px;
    padding-top: var(--header-h);
}

/* ===== HERO BANNER ===== */
.hero {
    background: linear-gradient(135deg, #0052d9 0%, #003bab 60%, #001f6b 100%);
    color: #fff;
    padding: 96px 80px 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -80px;
    right: -80px;
    width: 480px;
    height: 480px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -100px;
    right: 80px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.04);
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 24px;
    line-height: 1.2;
    position: relative;
}

.hero p {
    font-size: 18px;
    max-width: 640px;
    opacity: 0.88;
    line-height: 1.8;
    position: relative;
}

/* ===== SECTION BASE ===== */
.section {
    padding: var(--section-pad) 80px;
    border-bottom: 1px solid var(--gray-line);
}

.section:nth-child(even) {
    background: var(--gray-bg);
}

.section-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--blue);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 16px;
    line-height: 1.25;
}

.section-subtitle {
    font-size: 18px;
    color: var(--gray-text);
    max-width: 720px;
    line-height: 1.8;
    margin-bottom: 48px;
}

.divider {
    width: 48px;
    height: 4px;
    background: var(--blue);
    border-radius: 2px;
    margin-bottom: 40px;
}

/* ===== SECTION 1: COMPANY PROFILE ===== */
#about-con-1 .profile-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.profile-text p {
    font-size: 16px;
    line-height: 1.9;
    color: #444;
    margin-bottom: 20px;
}

.profile-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.stat-card {
    background: var(--white);
    border: 1px solid var(--gray-line);
    border-radius: 12px;
    padding: 28px 24px;
    transition: box-shadow 0.2s, transform 0.2s;
}

.section:nth-child(even) .stat-card {
    background: var(--white);
}

.stat-card:hover {
    box-shadow: 0 8px 32px rgba(0, 82, 217, 0.10);
    transform: translateY(-2px);
}

.stat-num {
    font-size: 36px;
    font-weight: 700;
    color: var(--blue);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-desc {
    font-size: 14px;
    color: var(--gray-text);
}

/* ===== SECTION 2: VISION & MISSION ===== */
#about-con-2 {
    background: linear-gradient(135deg, #0052d9 0%, #0041b0 100%);
    color: #fff;
}

#about-con-2 .section-label {
    color: rgba(255, 255, 255, 0.7);
}

#about-con-2 .section-title {
    color: #fff;
}

#about-con-2 .divider {
    background: rgba(255, 255, 255, 0.5);
}

.mission-hero {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 32px;
    line-height: 1.3;
}

.mission-body {
    font-size: 18px;
    line-height: 2;
    opacity: 0.9;
    max-width: 700px;
}

.mission-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 40px;
}

.mission-pill {
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 32px;
    padding: 10px 24px;
    font-size: 15px;
    font-weight: 500;
    backdrop-filter: blur(4px);
    transition: background 0.2s;
}

.mission-pill:hover {
    background: rgba(255, 255, 255, 0.25);
}

/* ===== SECTION 3: HISTORY (TIMELINE) ===== */
#about-con-3 .timeline {
    position: relative;
    padding-left: 0;
}

.timeline-year-group {
    margin-bottom: 48px;
}

.timeline-year {
    font-size: 28px;
    font-weight: 700;
    color: var(--blue);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--blue-light);
}

.timeline-events {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.timeline-event {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 14px 18px;
    background: var(--white);
    border-radius: 8px;
    border-left: 4px solid var(--blue);
    transition: box-shadow 0.2s;
}

.timeline-event:hover {
    box-shadow: 0 4px 16px rgba(0, 82, 217, 0.08);
}

.timeline-month {
    min-width: 36px;
    font-size: 13px;
    font-weight: 700;
    color: var(--blue);
    background: var(--blue-light);
    border-radius: 4px;
    padding: 2px 6px;
    text-align: center;
    line-height: 1.8;
}

.timeline-desc {
    font-size: 15px;
    color: #444;
    line-height: 1.7;
}

/* ===== SECTION 4: BUSINESS ARCHITECTURE ===== */
#about-con-4 .biz-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.biz-card {
    background: var(--white);
    border: 1px solid var(--gray-line);
    border-radius: 16px;
    padding: 32px 28px;
    transition: box-shadow 0.2s, transform 0.2s;
    position: relative;
    overflow: hidden;
}

.biz-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--blue);
    border-radius: 16px 16px 0 0;
}

.biz-card:hover {
    box-shadow: 0 12px 40px rgba(0, 82, 217, 0.12);
    transform: translateY(-4px);
}

.biz-tag {
    display: inline-block;
    background: var(--blue);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 16px;
    letter-spacing: 1px;
}

.biz-name {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
}

.biz-desc {
    font-size: 14px;
    color: var(--gray-text);
    line-height: 1.8;
}

/* ===== SECTION 5: MANAGEMENT TEAM ===== */
#about-con-5 .team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.team-card {
    background: var(--white);
    border: 1px solid var(--gray-line);
    border-radius: 16px;
    padding: 32px 20px 24px;
    text-align: center;
    transition: box-shadow 0.2s, transform 0.2s;
}

.team-card:hover {
    box-shadow: 0 8px 32px rgba(0, 82, 217, 0.10);
    transform: translateY(-3px);
}

.team-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
    color: #fff;
    font-size: 28px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.team-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 6px;
}

.team-role-main {
    font-size: 12px;
    font-weight: 600;
    color: var(--blue);
    background: var(--blue-light);
    border-radius: 4px;
    padding: 3px 10px;
    display: inline-block;
    margin-bottom: 8px;
}

.team-role-sub {
    font-size: 13px;
    color: var(--gray-text);
    line-height: 1.6;
}

.team-section-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark);
    margin: 48px 0 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--gray-line);
}

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

/* ===== SECTION 6: CORPORATE CULTURE ===== */
#about-con-6 {
    background: var(--dark);
    color: #fff;
}

#about-con-6 .section-label {
    color: rgba(255, 255, 255, 0.5);
}

#about-con-6 .section-title {
    color: #fff;
}

#about-con-6 .divider {
    background: var(--blue);
}

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

.culture-card {
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    padding: 36px 28px;
    background: rgba(255, 255, 255, 0.04);
    transition: background 0.2s, transform 0.2s;
    text-align: center;
}

.culture-card:hover {
    background: rgba(0, 82, 217, 0.2);
    transform: translateY(-3px);
}

.culture-icon {
    font-size: 40px;
    margin-bottom: 20px;
}

.culture-title {
    font-size: 22px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
}

.culture-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.8;
}

/* ===== SECTION 7: OFFICE LOCATIONS ===== */
#about-con-7 .region-block {
    margin-bottom: 48px;
}

.region-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--blue);
    display: flex;
    align-items: center;
    gap: 10px;
}

.region-title .region-icon {
    font-size: 22px;
}

.office-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.office-card {
    background: var(--white);
    border: 1px solid var(--gray-line);
    border-radius: 10px;
    padding: 18px 20px;
    transition: box-shadow 0.2s;
}

.office-card:hover {
    box-shadow: 0 4px 16px rgba(0, 82, 217, 0.08);
}

.office-city {
    font-size: 15px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 6px;
}

.office-addr {
    font-size: 13px;
    color: var(--gray-text);
    line-height: 1.7;
}

.hq-badge {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    color: #fff;
    background: var(--blue);
    border-radius: 4px;
    padding: 2px 8px;
    margin-left: 8px;
    vertical-align: middle;
}

/* ===== FOOTER ===== */
.site-footer {
    background: #1a1a1a;
    color: rgba(255, 255, 255, 0.6);
    padding: 48px 80px 32px;
    margin-left: 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .brand-name {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
}

.footer-col h4 {
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 16px;
}

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

.footer-col ul li a {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    transition: color 0.2s;
}

.footer-col ul li a:hover {
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 24px;
    font-size: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-legal {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.4);
    transition: color 0.2s;
}

.footer-legal a:hover {
    color: rgba(255, 255, 255, 0.8);
}

/* ===== SCROLL ANIMATION ===== */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1200px) {
    #about-con-4 .biz-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    #about-con-5 .team-grid {
        grid-template-columns: repeat(3, 1fr);
    }

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

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

@media (max-width: 900px) {
    .sidebar {
        display: none;
    }

    .main-content {
        margin-left: 0;
    }

    .section {
        padding: 60px 24px;
    }

    .hero {
        padding: 72px 24px 60px;
    }

    .hero h1 {
        font-size: 32px;
    }

    #about-con-1 .profile-grid {
        grid-template-columns: 1fr;
    }

    #about-con-5 .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    #about-con-4 .biz-grid {
        grid-template-columns: 1fr;
    }

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

    .top-nav {
        padding: 0 20px;
    }

    .nav-links {
        display: none;
    }

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

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

@media (max-width: 600px) {
    .profile-stats {
        grid-template-columns: 1fr;
    }

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

    #about-con-5 .team-grid {
        grid-template-columns: 1fr;
    }

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

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

    .section-title {
        font-size: 26px;
    }
}

/*</style>*/