/* ========================================
   关于赢式 - 高档大气风格
   ======================================== */

:root {
    --ab-primary: #2563EB;
    --ab-primary-dark: #1D4ED8;
    --ab-primary-light: #3B82F6;
    --ab-secondary: #0EA5E9;
    --ab-accent: #8B5CF6;
    --ab-text-dark: #1E293B;
    --ab-text: #475569;
    --ab-text-light: #94A3B8;
    --ab-bg-light: #F8FAFC;
    --ab-bg-white: #FFFFFF;
    --ab-border: #E2E8F0;
    --ab-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --ab-shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --ab-radius: 12px;
    --ab-radius-lg: 20px;
}

/* ========== Hero 区域 ========== */
.ab-hero {
    position: relative;
    min-height: 580px;
    background: #0B1E3F;
    overflow: hidden;
    padding: 140px 0 80px;
}

.ab-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(11, 30, 63, 0.88) 0%, rgba(11, 30, 63, 0.65) 45%, rgba(11, 30, 63, 0.55) 100%);
    pointer-events: none;
    z-index: 1;
}

.ab-hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        radial-gradient(ellipse at 20% 80%, rgba(34, 211, 238, 0.18) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(59, 130, 246, 0.15) 0%, transparent 50%);
    pointer-events: none;
    z-index: 1;
}

.ab-hero-bg {
    position: absolute;
    inset: 0;
    background: url('../images/about_banner.png') center center / cover no-repeat;
}

.ab-hero .container {
    position: relative;
    z-index: 2;
}

.ab-hero-content {
    max-width: 720px;
    color: #fff;
}

.ab-hero h1 {
    font-size: 52px;
    font-weight: 700;
    color: #fff;
    line-height: 1.25;
    margin-bottom: 20px;
}

.ab-hero h1 span {
    color: #93C5FD;
}

.ab-hero-content p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.8;
    margin: 0 0 28px;
    max-width: 720px;
}

.ab-hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.ab-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
}
.ab-btn-primary {
    background: #2563EB;
    color: #fff;
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.4);
}
.ab-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.5);
}
.ab-btn-outline {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
}
.ab-btn-outline:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.4);
}

/* Hero 统计数据 */
.ab-hero-stats {
    display: flex;
    justify-content: flex-start;
    gap: 56px;
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.ab-hero-stat {
    text-align: left;
}

.ab-hero-stat-num {
    font-size: 44px;
    font-weight: 700;
    color: #FFFFFF;
    line-height: 1;
    display: inline-block;
}

.ab-hero-stat-unit {
    display: inline-block;
    font-size: 20px;
    font-weight: 600;
    color: #93C5FD;
    margin-left: 2px;
}

.ab-hero-stat-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.65);
    margin-top: 8px;
    letter-spacing: 1px;
}

/* ========== 通用标签 ========== */
.ab-tag {
    display: inline-block;
    padding: 6px 14px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(14, 165, 233, 0.1));
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    color: var(--ab-primary);
    letter-spacing: 2px;
    margin-bottom: 16px;
}

/* ========== 通用标题 ========== */
.ab-section-head {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px;
}

.ab-section-head h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--ab-text-dark);
    margin: 12px 0 16px;
    letter-spacing: -0.5px;
}

.ab-section-head h2 span {
    background: linear-gradient(135deg, var(--ab-primary), var(--ab-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.ab-section-head p {
    font-size: 16px;
    color: var(--ab-text-light);
    line-height: 1.6;
}

/* ========== 公司简介 ========== */
.ab-intro {
    padding: 100px 0;
    background: var(--ab-bg-white);
}

.ab-intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.ab-intro-left h2 {
    font-size: 36px;
    font-weight: 700;
    color: var(--ab-text-dark);
    margin: 12px 0 30px;
}

.ab-intro-left h2 span {
    background: linear-gradient(135deg, var(--ab-primary), var(--ab-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.ab-intro-text {
    margin-bottom: 30px;
}

.ab-intro-text p {
    font-size: 16px;
    color: var(--ab-text);
    line-height: 1.9;
    margin-bottom: 16px;
}

.ab-intro-lead {
    font-size: 18px !important;
    font-weight: 500;
    color: var(--ab-text-dark) !important;
}

.ab-intro-certs {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.ab-cert {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05), rgba(14, 165, 233, 0.05));
    border: 1px solid rgba(37, 99, 235, 0.15);
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    color: var(--ab-text-dark);
    transition: all 0.3s ease;
}

.ab-cert:hover {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(14, 165, 233, 0.1));
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.15);
}

.ab-cert svg {
    color: var(--ab-primary);
    flex-shrink: 0;
}

/* 公司简介图片 */
.ab-intro-image {
    position: relative;
    border-radius: var(--ab-radius-lg);
    overflow: hidden;
    box-shadow: var(--ab-shadow-lg);
}

.ab-intro-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    display: block;
}

.ab-intro-image-badge {
    position: absolute;
    bottom: 24px;
    right: 24px;
    background: linear-gradient(135deg, var(--ab-primary), var(--ab-secondary));
    padding: 20px 28px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.4);
}

.ab-badge-num {
    display: block;
    font-size: 42px;
    font-weight: 700;
    color: #FFFFFF;
    line-height: 1;
}

.ab-badge-text {
    display: block;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.9);
    margin-top: 6px;
    letter-spacing: 1px;
}

/* ========== 全国分部 ========== */
.ab-offices {
    padding: 100px 0;
    background: var(--ab-bg-light);
}

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

.ab-office-card {
    position: relative;
    background: var(--ab-bg-white);
    border-radius: var(--ab-radius-lg);
    padding: 36px 28px 28px;
    text-align: center;
    border: 1px solid var(--ab-border);
    transition: all 0.4s ease;
    overflow: hidden;
}

.ab-office-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--ab-primary), var(--ab-secondary));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.ab-office-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--ab-shadow-lg);
    border-color: transparent;
}

.ab-office-card:hover::before {
    opacity: 1;
}

/* 总部特殊样式 */
.ab-office--head {
    background: linear-gradient(135deg, #1E40AF, #2563EB);
    border-color: transparent;
    color: #FFFFFF;
}

.ab-office--head::before {
    opacity: 1;
    background: linear-gradient(90deg, #60A5FA, #34D399);
}

.ab-office--head:hover {
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.3);
}

.ab-office--head .ab-office-icon {
    background: rgba(255, 255, 255, 0.15);
}

.ab-office--head .ab-office-icon svg {
    color: #FFFFFF;
}

.ab-office--head h3 {
    color: #FFFFFF;
}

.ab-office--head .ab-office-addr {
    color: rgba(255, 255, 255, 0.8);
}

.ab-office--head .ab-office-meta span {
    background: rgba(255, 255, 255, 0.15);
    color: rgba(255, 255, 255, 0.9);
}

.ab-office--head .ab-office-btn {
    background: rgba(255, 255, 255, 0.2);
    color: #FFFFFF;
    border-color: rgba(255, 255, 255, 0.3);
}

.ab-office--head .ab-office-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

.ab-office-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 4px 12px;
    background: linear-gradient(135deg, #F59E0B, #EF4444);
    color: #FFFFFF;
    font-size: 12px;
    font-weight: 700;
    border-radius: 20px;
    letter-spacing: 1px;
}

.ab-office-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(14, 165, 233, 0.1));
    transition: all 0.3s ease;
}

.ab-office-card:hover .ab-office-icon {
    transform: scale(1.1);
}

.ab-office-icon svg {
    color: var(--ab-primary);
}

.ab-office-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--ab-text-dark);
    margin-bottom: 10px;
}

.ab-office-addr {
    font-size: 14px;
    color: var(--ab-text);
    line-height: 1.6;
    margin-bottom: 16px;
}

.ab-office-meta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-bottom: 20px;
}

.ab-office-meta span {
    padding: 4px 12px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.08), rgba(14, 165, 233, 0.08));
    color: var(--ab-primary);
    font-size: 12px;
    font-weight: 500;
    border-radius: 20px;
}

.ab-office-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--ab-primary), var(--ab-primary-dark));
    color: #FFFFFF;
    font-size: 13px;
    font-weight: 600;
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.ab-office-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.3);
}

/* 全国服务网络 - 顶部统计 */
.ab-net-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin: 40px 0 48px;
    padding: 28px 32px;
    background: linear-gradient(135deg, #1E40AF 0%, #2563EB 50%, #0EA5E9 100%);
    border-radius: var(--ab-radius-lg);
    color: #FFFFFF;
}

.ab-net-stat {
    text-align: center;
    padding: 8px 0;
    border-right: 1px solid rgba(255, 255, 255, 0.2);
}

.ab-net-stat:last-child {
    border-right: none;
}

.ab-net-stat-num {
    display: block;
    font-size: 32px;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.5px;
}

.ab-net-stat-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    opacity: 0.85;
    margin-top: 4px;
}

/* 大区分组 */
.ab-net-regions {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.ab-net-region {
    background: var(--ab-bg-white);
    border-radius: var(--ab-radius-lg);
    overflow: hidden;
    border: 1px solid var(--ab-border);
    transition: all 0.3s ease;
}

.ab-net-region:hover {
    box-shadow: var(--ab-shadow-lg);
    transform: translateY(-2px);
}

.ab-net-region-head {
    padding: 20px 28px;
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
    border-bottom: 1px solid var(--ab-border);
}

.ab-net-region-head h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--ab-text-dark);
    margin: 0;
}

.ab-net-region-badge {
    font-size: 11px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 20px;
    letter-spacing: 0.5px;
    background: var(--ab-border);
    color: var(--ab-text);
}

.ab-net-region-desc {
    font-size: 13px;
    color: var(--ab-text-light);
    margin-left: auto;
    font-style: normal;
}

.ab-net-region-body {
    padding: 20px 28px 24px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.ab-net-city {
    display: inline-flex;
    align-items: center;
    padding: 8px 18px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.06), rgba(14, 165, 233, 0.06));
    border: 1px solid rgba(37, 99, 235, 0.15);
    border-radius: 24px;
    font-size: 14px;
    font-weight: 500;
    color: var(--ab-text-dark);
    text-decoration: none;
    transition: all 0.25s ease;
    position: relative;
}

.ab-net-city::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--ab-primary);
    margin-right: 8px;
    opacity: 0.6;
    transition: all 0.25s ease;
}

.ab-net-city:hover {
    background: var(--ab-primary);
    color: #FFFFFF;
    border-color: var(--ab-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.ab-net-city:hover::before {
    background: #FFFFFF;
    opacity: 1;
}

/* 总部特殊样式 */
.ab-net-region--hq {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, #1E40AF 0%, #2563EB 60%, #0EA5E9 100%);
    border-color: transparent;
}

.ab-net-region--hq .ab-net-region-head {
    border-bottom-color: rgba(255, 255, 255, 0.2);
    color: #FFFFFF;
}

.ab-net-region--hq .ab-net-region-head h3 {
    color: #FFFFFF;
    font-size: 24px;
}

.ab-net-region--hq .ab-net-region-badge {
    background: rgba(255, 255, 255, 0.2);
    color: #FFFFFF;
}

.ab-net-region--hq .ab-net-region-desc {
    color: rgba(255, 255, 255, 0.85);
}

.ab-net-region--hq .ab-net-city--hq {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
    color: #FFFFFF;
    font-size: 16px;
    font-weight: 600;
    padding: 10px 28px;
    cursor: default;
}

.ab-net-region--hq .ab-net-city--hq::before {
    background: #FCD34D;
    width: 10px;
    height: 10px;
    opacity: 1;
    box-shadow: 0 0 8px rgba(252, 211, 77, 0.7);
}

.ab-net-region--hq:hover {
    transform: none;
    box-shadow: 0 8px 32px rgba(37, 99, 235, 0.35);
}

/* 华东 - 蓝 */
.ab-net-region--east .ab-net-region-head {
    background: linear-gradient(90deg, rgba(37, 99, 235, 0.08), transparent);
}

.ab-net-region--east .ab-net-region-badge {
    background: rgba(37, 99, 235, 0.12);
    color: #2563EB;
}

/* 华中 - 青 */
.ab-net-region--center .ab-net-region-head {
    background: linear-gradient(90deg, rgba(14, 165, 233, 0.08), transparent);
}

.ab-net-region--center .ab-net-region-badge {
    background: rgba(14, 165, 233, 0.12);
    color: #0284C7;
}

/* 华北 - 紫 */
.ab-net-region--north .ab-net-region-head {
    background: linear-gradient(90deg, rgba(139, 92, 246, 0.08), transparent);
}

.ab-net-region--north .ab-net-region-badge {
    background: rgba(139, 92, 246, 0.12);
    color: #7C3AED;
}

/* 西北 - 橙 */
.ab-net-region--west .ab-net-region-head {
    background: linear-gradient(90deg, rgba(249, 115, 22, 0.08), transparent);
}

.ab-net-region--west .ab-net-region-badge {
    background: rgba(249, 115, 22, 0.12);
    color: #EA580C;
}

.ab-net-region--west .ab-net-city {
    background: linear-gradient(135deg, rgba(249, 115, 22, 0.06), rgba(234, 88, 12, 0.06));
    border-color: rgba(249, 115, 22, 0.15);
}

.ab-net-region--west .ab-net-city::before {
    background: #F97316;
}

.ab-net-region--west .ab-net-city:hover {
    background: #F97316;
    border-color: #F97316;
    box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
}

/* ========== 企业文化 ========== */
.ab-culture {
    padding: 100px 0;
    background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
    position: relative;
}

.ab-culture-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-top: 10px;
}

.ab-culture-card {
    position: relative;
    padding: 48px 32px 36px;
    border-radius: 24px;
    text-align: left;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    border: none;
}

.ab-culture-glow {
    position: absolute;
    top: -60px;
    right: -60px;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    opacity: 0.5;
    filter: blur(40px);
    transition: all 0.5s ease;
}

.ab-culture--mission {
    background: linear-gradient(135deg, #3B82F6 0%, #1D4ED8 100%);
    color: #FFFFFF;
    box-shadow: 0 4px 24px rgba(59, 130, 246, 0.25);
}
.ab-culture--mission .ab-culture-glow { background: #60A5FA; }

.ab-culture--vision {
    background: linear-gradient(135deg, #06B6D4 0%, #0891B2 100%);
    color: #FFFFFF;
    box-shadow: 0 4px 24px rgba(6, 182, 212, 0.25);
}
.ab-culture--vision .ab-culture-glow { background: #22D3EE; }

.ab-culture--values {
    background: linear-gradient(135deg, #8B5CF6 0%, #7C3AED 100%);
    color: #FFFFFF;
    box-shadow: 0 4px 24px rgba(139, 92, 246, 0.25);
}
.ab-culture--values .ab-culture-glow { background: #A78BFA; }

.ab-culture-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 48px rgba(0, 0, 0, 0.18);
}

.ab-culture-card:hover .ab-culture-glow {
    transform: scale(1.3);
    opacity: 0.7;
}

.ab-culture-icon {
    width: 68px;
    height: 68px;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.18);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: #FFFFFF;
}

.ab-culture-card h3 {
    font-size: 22px;
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 14px;
    letter-spacing: 0.5px;
}

.ab-culture-card p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.88);
    line-height: 1.8;
    position: relative;
    z-index: 1;
}

.ab-culture-card p strong {
    color: #FFFFFF;
    font-weight: 700;
}

.ab-culture-num {
    position: absolute;
    bottom: 16px;
    right: 24px;
    font-size: 56px;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.18);
    letter-spacing: -2px;
    line-height: 1;
}

.ab-culture-slogan {
    margin-top: 60px;
    text-align: center;
}

.ab-culture-slogan-inner {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    padding: 18px 42px;
    background: linear-gradient(135deg, #1E40AF 0%, #0EA5E9 100%);
    border-radius: 50px;
    color: #FFFFFF;
    font-size: 16px;
    font-weight: 500;
    box-shadow: 0 8px 24px rgba(30, 64, 175, 0.3);
}

.ab-culture-slogan-dot {
    opacity: 0.6;
}

/* ========== 核心优势 ========== */
.ab-advantages {
    padding: 100px 0;
    background: var(--ab-bg-light);
}

.ab-adv-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.ab-adv-card {
    background: var(--ab-bg-white);
    padding: 40px 32px;
    border-radius: var(--ab-radius-lg);
    text-align: center;
    transition: all 0.4s ease;
    border: 1px solid var(--ab-border);
}

.ab-adv-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--ab-shadow-lg);
    border-color: transparent;
}

.ab-adv-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
    transition: all 0.3s ease;
}

.ab-adv-card:hover .ab-adv-icon {
    transform: scale(1.1) rotate(5deg);
}

.ab-adv--blue { background: linear-gradient(135deg, #DBEAFE, #BFDBFE); }
.ab-adv--blue svg { color: #2563EB; }

.ab-adv--green { background: linear-gradient(135deg, #D1FAE5, #A7F3D0); }
.ab-adv--green svg { color: #059669; }

.ab-adv--purple { background: linear-gradient(135deg, #EDE9FE, #DDD6FE); }
.ab-adv--purple svg { color: #7C3AED; }

.ab-adv--orange { background: linear-gradient(135deg, #FEF3C7, #FDE68A); }
.ab-adv--orange svg { color: #D97706; }

.ab-adv--cyan { background: linear-gradient(135deg, #CFFAFE, #A5F3FC); }
.ab-adv--cyan svg { color: #0891B2; }

.ab-adv--red { background: linear-gradient(135deg, #FEE2E2, #FECACA); }
.ab-adv--red svg { color: #DC2626; }

.ab-adv-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--ab-text-dark);
    margin-bottom: 12px;
}

.ab-adv-card p {
    font-size: 14px;
    color: var(--ab-text);
    line-height: 1.7;
}

/* ========== 合作伙伴 ========== */
.ab-clients {
    padding: 80px 0;
    background: var(--ab-bg-white);
}

.ab-clients-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 20px;
    margin-top: 20px;
}

.ab-client-item {
    background: var(--ab-bg-white);
    border: 1px solid var(--ab-border);
    border-radius: 12px;
    padding: 18px 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 3 / 2;
    transition: all 0.3s ease;
}

.ab-client-item:hover {
    border-color: var(--ab-primary);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.12);
    transform: translateY(-4px);
}

.ab-client-logo {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ab-client-logo img {
    max-width: 90%;
    max-height: 100%;
    object-fit: contain;
    filter: grayscale(20%);
    opacity: 0.85;
    transition: all 0.3s ease;
}

.ab-client-item:hover .ab-client-logo img {
    filter: grayscale(0);
    opacity: 1;
}

/* ========== 联系我们 ========== */
.ab-contact {
    padding: 100px 0;
    background: linear-gradient(135deg, #0F172A 0%, #1E3A5F 100%);
    position: relative;
    overflow: hidden;
}

.ab-contact::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.25) 0%, transparent 70%);
    pointer-events: none;
}

.ab-contact-head {
    text-align: center;
    margin-bottom: 48px;
}

.ab-contact-head h2 {
    font-size: 40px;
    font-weight: 700;
    color: #FFFFFF;
    margin: 12px 0 16px;
}

.ab-contact-head h2 span {
    background: linear-gradient(135deg, #60A5FA, #34D399);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.ab-contact-head > p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.7);
}

.ab-contact-head .ab-tag {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.9);
}

.ab-contact-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 24px;
    position: relative;
}

.ab-contact-card {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    padding: 28px;
    display: flex;
    align-items: flex-start;
    gap: 20px;
    transition: all 0.35s ease;
    backdrop-filter: blur(8px);
    grid-column: span 3;
}

.ab-contact-card:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
}

.ab-contact-card--primary {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.35), rgba(14, 165, 233, 0.25));
    border-color: rgba(96, 165, 250, 0.4);
    grid-column: span 6;
    align-items: center;
}

.ab-contact-card--primary .ab-contact-card-icon {
    background: linear-gradient(135deg, #60A5FA, #34D399);
}

.ab-contact-card--wide {
    grid-column: span 6;
}

.ab-contact-card-icon {
    width: 56px;
    height: 56px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--ab-primary), var(--ab-secondary));
    border-radius: 14px;
    color: #FFFFFF;
}

.ab-contact-card-body {
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 0;
}

.ab-contact-card-label {
    font-size: 13px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.6);
    letter-spacing: 0.5px;
}

.ab-contact-card-value {
    font-size: 20px;
    font-weight: 700;
    color: #FFFFFF;
    text-decoration: none;
    line-height: 1.4;
    word-break: break-all;
}

.ab-contact-card--primary .ab-contact-card-value {
    font-size: 28px;
    letter-spacing: 1px;
}

.ab-contact-card-tip {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.55);
    margin-top: 4px;
}

.ab-contact-actions {
    grid-column: span 6;
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 16px;
}

.ab-contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 36px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #FFFFFF;
    background: rgba(255, 255, 255, 0.08);
}

.ab-contact-btn:hover {
    transform: translateY(-3px);
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.5);
}

.ab-contact-btn--primary {
    background: linear-gradient(135deg, #2563EB, #0EA5E9);
    border-color: transparent;
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.4);
}

.ab-contact-btn--primary:hover {
    box-shadow: 0 12px 32px rgba(37, 99, 235, 0.55);
    background: linear-gradient(135deg, #3B82F6, #38BDF8);
}

/* ========== 双电话行 ========== */
.ab-contact-card-phones {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin: 8px 0 4px;
}
.ab-contact-card-phone-sep {
    color: rgba(255, 255, 255, 0.5);
    font-weight: 300;
}

/* ========== 资质荣誉 ========== */
.ab-qualifs {
    padding: 80px 0;
    background: linear-gradient(180deg, var(--ab-bg-white) 0%, #EEF4FF 100%);
}
.ab-qualifs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-top: 48px;
}
.ab-qualif-card {
    position: relative;
    background: var(--ab-bg-white);
    border-radius: var(--ab-radius);
    padding: 32px 28px 28px;
    border: 1px solid var(--ab-border);
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}
.ab-qualif-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--ab-primary), var(--ab-accent));
    opacity: 0;
    transition: opacity 0.35s;
}
.ab-qualif-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--ab-shadow-lg);
    border-color: transparent;
}
.ab-qualif-card:hover::before { opacity: 1; }

.ab-qualif-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    font-size: 14px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}
.ab-qualif-badge--star {
    background: linear-gradient(135deg, #F59E0B, #FBBF24);
    color: #fff;
    box-shadow: 0 4px 10px rgba(245, 158, 11, 0.35);
}
.ab-qualif-badge--shield {
    background: linear-gradient(135deg, #22C55E, #4ADE80);
    color: #fff;
    box-shadow: 0 4px 10px rgba(34, 197, 94, 0.35);
}
.ab-qualif-badge--doc {
    background: linear-gradient(135deg, var(--ab-primary), var(--ab-secondary));
    color: #fff;
    box-shadow: 0 4px 10px rgba(37, 99, 235, 0.35);
}

.ab-qualif-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(139, 92, 246, 0.1));
    color: var(--ab-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
}
.ab-qualif-card:nth-child(2) .ab-qualif-icon {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1), rgba(14, 165, 233, 0.1));
    color: #059669;
}
.ab-qualif-card:nth-child(3) .ab-qualif-icon {
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.1), rgba(59, 130, 246, 0.1));
    color: #0284C7;
}
.ab-qualif-card:nth-child(4) .ab-qualif-icon {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(239, 68, 68, 0.1));
    color: #D97706;
}
.ab-qualif-card:nth-child(5) .ab-qualif-icon {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1), rgba(244, 114, 182, 0.1));
    color: #DC2626;
}
.ab-qualif-card:nth-child(6) .ab-qualif-icon {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(236, 72, 153, 0.1));
    color: #7C3AED;
}

.ab-qualif-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--ab-text-dark);
    margin-bottom: 10px;
}
.ab-qualif-card p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--ab-text);
    margin-bottom: 14px;
}
.ab-qualif-year {
    display: inline-block;
    font-size: 12px;
    font-weight: 600;
    color: var(--ab-primary);
    background: rgba(37, 99, 235, 0.08);
    padding: 4px 12px;
    border-radius: 20px;
    letter-spacing: 0.3px;
}

/* ========== 响应式设计 ========== */
@media (max-width: 1024px) {
    .ab-intro-grid {
        gap: 50px;
    }

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

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

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

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

    .ab-contact-card--primary {
        grid-column: span 2;
    }

    .ab-contact-card--wide {
        grid-column: span 2;
    }

    .ab-contact-actions {
        grid-column: span 2;
    }
}

@media (max-width: 992px) {
    .ab-hero {
        min-height: auto;
        padding: 110px 0 90px;
    }
    .ab-hero h1 { font-size: 38px; }
    .ab-hero-content p { font-size: 15px; }
    .ab-qualifs { padding: 60px 0; }
    .ab-qualifs-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
}

@media (max-width: 768px) {
    .ab-hero {
        min-height: auto;
        padding: 100px 0 80px;
    }
    
    .ab-hero h1 {
        font-size: 32px;
    }
    
    .ab-hero-content p {
        font-size: 15px;
    }
    
    .ab-hero-stats {
        flex-wrap: wrap;
        gap: 30px;
        margin-top: 40px;
        padding-top: 30px;
    }
    
    .ab-hero-stat-num {
        font-size: 40px;
    }
    
    .ab-intro {
        padding: 60px 0;
    }
    
    .ab-intro-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .ab-intro-left h2,
    .ab-section-head h2,
    .ab-contact-head h2 {
        font-size: 28px;
    }

    /* 服务网络移动端 */
    .ab-net-regions {
        grid-template-columns: 1fr;
    }
    .ab-net-stats {
        grid-template-columns: repeat(2, 1fr);
        padding: 20px;
    }
    .ab-net-stat:nth-child(2) {
        border-right: none;
    }
    .ab-net-stat {
        border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    }
    .ab-net-stat:nth-child(3),
    .ab-net-stat:nth-child(4) {
        border-bottom: none;
    }
    .ab-net-region-head {
        flex-wrap: wrap;
        gap: 8px;
    }
    .ab-net-region-desc {
        margin-left: 0;
        width: 100%;
    }

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

    .ab-culture-slogan-inner {
        flex-wrap: wrap;
        gap: 8px;
        padding: 14px 24px;
        font-size: 14px;
    }

    .ab-clients-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 12px;
    }

    .ab-contact-grid {
        grid-template-columns: 1fr;
    }

    .ab-contact-card--primary,
    .ab-contact-card--wide,
    .ab-contact-actions {
        grid-column: span 1;
    }

    .ab-contact-card--primary .ab-contact-card-value {
        font-size: 22px;
    }

    .ab-contact-actions {
        flex-direction: column;
    }

    .ab-contact-btn {
        justify-content: center;
    }

    .ab-contact-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .ab-contact-card,
    .ab-contact-card--primary,
    .ab-contact-card--wide,
    .ab-contact-actions {
        grid-column: span 1;
    }

    .ab-qualifs { padding: 50px 0; }
    .ab-qualifs-grid { grid-template-columns: 1fr; gap: 18px; margin-top: 32px; }
}

@media (max-width: 480px) {
    .ab-hero { padding: 90px 0 70px; }
    .ab-hero h1 {
        font-size: 26px;
    }
    .ab-hero-content p { font-size: 14px; }
    .ab-hero-cta { flex-direction: column; }
    .ab-btn { justify-content: center; }
    
    .ab-hero-stats {
        gap: 20px;
    }
    
    .ab-hero-stat {
        width: calc(50% - 10px);
    }
    
    .ab-hero-stat-num {
        font-size: 32px;
    }
    
    .ab-intro-certs {
        flex-direction: column;
    }
    
    .ab-cert {
        width: 100%;
        justify-content: center;
    }
    
    .ab-timeline-card {
        padding: 20px 24px;
    }
    
    .ab-culture-card,
    .ab-adv-card {
        padding: 32px 24px;
    }
}