/* ==========================================================================
   About Page — nuoang-about.css
   关于我们页面专属样式
   ========================================================================== */

.nuoang-about-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Section 通用 ===== */
.nuoang-about-intro-section,
.nuoang-about-culture-section,
.nuoang-about-vision-section,
.nuoang-about-timeline-section,
.nuoang-about-cert-section,
.nuoang-about-cta-section {
    padding-top: var(--module-py);
    padding-bottom: var(--module-py);
}
.nuoang-about-intro-section { background: #fff; }
.nuoang-about-culture-section { background: #F7F8FA; }
.nuoang-brands-section { background: #fff; }

.nuoang-about-section-header {
    text-align: center;
    margin-bottom: var(--module-header-mb);
}

.nuoang-about-section-title {
    font-size: 32px;
    font-weight: 700;
    color: #1a1a1a;
    line-height: 1.3;
    letter-spacing: -0.01em;
    margin: 0 0 12px;
}

.nuoang-about-section-subtitle {
    font-size: 16px;
    color: #6B7280;
    margin: 0;
}

/* ===== Banner ===== */
.nuoang-about-hero {
    width: 100%;
    min-height: 420px;
    padding-top: 64px;
    box-sizing: border-box;
    position: relative;
    display: flex;
    align-items: center;
}
.nuoang-about-hero-bg {
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}
.nuoang-about-hero-overlay {
    position: relative;
    z-index: 1;
    text-align: left;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}
.nuoang-about-hero-title {
    font-size: 36px;
    font-weight: 700;
    color: #1a1a1a;
    line-height: 1.3;
    letter-spacing: -0.01em;
    margin: 0 0 12px 0;
}
.nuoang-about-hero-subtitle {
    font-size: 16px;
    color: #4B5563;
    line-height: 1.6;
    margin: 0;
    max-width: 60%;
}

/* ===== 公司简介 - 方案2：几何圆形 ===== */
.nuoang-about-intro-section {
    background: linear-gradient(180deg, #f7f9fc 0%, #fff 100%);
    position: relative;
    overflow: hidden;
}
.nuoang-about-intro-section::before {
    content: '';
    position: absolute;
    top: 8%;
    right: 3%;
    width: 340px;
    height: 340px;
    border-radius: 50%;
    border: 1px solid rgba(22,93,255,0.08);
    z-index: 0;
}
.nuoang-about-intro-section::after {
    content: '';
    position: absolute;
    top: 18%;
    right: 8%;
    width: 220px;
    height: 220px;
    border-radius: 50%;
    border: 1px solid rgba(22,93,255,0.12);
    z-index: 0;
}
.nuoang-about-intro-inner {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 70px;
    align-items: center;
    position: relative;
    z-index: 1;
}
.nuoang-about-intro-text {
    position: relative;
}
.nuoang-about-intro-text-content {
    position: relative;
    z-index: 1;
}
.nuoang-about-intro-title {
    font-size: 32px;
    font-weight: 700;
    color: #1d2129;
    line-height: 1.3;
    margin-bottom: 28px;
}
.nuoang-about-intro-title .blue {
    color: var(--nuoang-primary-color);
    position: relative;
}
.nuoang-about-intro-title .blue::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    right: 0;
    height: 10px;
    background: rgba(22,93,255,0.12);
    z-index: -1;
    border-radius: 2px;
}
.nuoang-about-intro-lead {
    font-size: 16px;
    color: #1d2129;
    font-weight: 500;
    line-height: 1.7;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #f0f0f0;
}
.nuoang-about-intro-desc {
    font-size: 14px;
    color: #4e5969;
    line-height: 1.9;
    margin-bottom: 14px;
}
.nuoang-about-intro-desc:last-of-type {
    margin-bottom: 32px;
}
.nuoang-about-intro-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}
.nuoang-about-intro-feat {
    background: #fff;
    border: 1px solid #e8eaed;
    border-radius: 12px;
    padding: 20px 16px;
    text-align: center;
    transition: all 0.3s;
}
.nuoang-about-intro-feat:hover {
    border-color: var(--nuoang-primary-color);
    box-shadow: 0 8px 24px rgba(22,93,255,0.1);
    transform: translateY(-4px);
}
.nuoang-about-intro-feat .ico {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    margin: 0 auto 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
}
.nuoang-about-intro-feat:nth-child(1) .ico {
    background: linear-gradient(135deg, #165dff, #4080ff);
}
.nuoang-about-intro-feat:nth-child(2) .ico {
    background: linear-gradient(135deg, #0fc6c2, #5cdbd3);
}
.nuoang-about-intro-feat:nth-child(3) .ico {
    background: linear-gradient(135deg, #722ed1, #9254de);
}
.nuoang-about-intro-feat .ico svg {
    width: 22px;
    height: 22px;
}
.nuoang-about-intro-feat h4 {
    font-size: 14px;
    font-weight: 600;
    color: #1d2129;
    margin-bottom: 4px;
}
.nuoang-about-intro-feat p {
    font-size: 12px !important;
    color: #86909c !important;
    margin-bottom: 0 !important;
    line-height: 1.5 !important;
}

/* 右侧图片区 */
.nuoang-about-intro-img-wrap {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}
.nuoang-about-intro-img-ring {
    position: absolute;
    width: 420px;
    height: 420px;
    border-radius: 50%;
    border: 1px dashed rgba(22,93,255,0.2);
    animation: nuoangIntroSpin 30s linear infinite;
}
@keyframes nuoangIntroSpin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}
.nuoang-about-intro-img-ring::before,
.nuoang-about-intro-img-ring::after {
    content: '';
    position: absolute;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--nuoang-primary-color);
}
.nuoang-about-intro-img-ring::before {
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
}
.nuoang-about-intro-img-ring::after {
    bottom: -6px;
    left: 50%;
    transform: translateX(-50%);
    background: #0fc6c2;
}
.nuoang-about-intro-img-circle {
    width: 360px;
    height: 360px;
    border-radius: 50%;
    overflow: hidden;
    position: relative;
    box-shadow: 0 24px 60px rgba(22,93,255,0.15);
    border: 4px solid #fff;
    background: linear-gradient(135deg, #ffffff 0%, #f5f7fa 100%);
}
.nuoang-about-intro-img-circle::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    box-shadow: inset 0 0 80px rgba(0,0,0,0.04);
    z-index: 1;
    pointer-events: none;
}
.nuoang-about-intro-img-circle::after {
    content: '';
    position: absolute;
    top: -30px;
    left: -30px;
    right: -30px;
    bottom: -30px;
    border-radius: 50%;
    background: conic-gradient(from 0deg, #165dff, #0fc6c2, #722ed1, #ff7d00, #165dff);
    -webkit-mask: radial-gradient(transparent calc(50% - 2px), #000 calc(50% - 2px), #000 calc(50% + 2px), transparent calc(50% + 2px));
    mask: radial-gradient(transparent calc(50% - 2px), #000 calc(50% - 2px), #000 calc(50% + 2px), transparent calc(50% + 2px));
    animation: nuoangIntroSpin 6s linear infinite;
    opacity: 0.8;
    z-index: 0;
    pointer-events: none;
}
.nuoang-about-intro-circle-content {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    text-align: center;
    position: relative;
    z-index: 2;
}
.nuoang-about-intro-circle-logo {
    width: 180px;
    height: auto;
    margin-bottom: 24px;
}
.nuoang-about-intro-circle-slogan {
    font-size: 18px;
    font-weight: 600;
    line-height: 1.5;
    margin-bottom: 24px;
    white-space: nowrap;
}
.nuoang-about-intro-circle-slogan .slogan-normal {
    color: #1d2129;
}
.nuoang-about-intro-circle-slogan .slogan-dot {
    color: var(--nuoang-primary-color);
    margin: 0 4px;
}
.nuoang-about-intro-circle-slogan .slogan-gradient {
    background: linear-gradient(90deg, #165dff, #0fc6c2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.nuoang-about-intro-circle-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 7px 18px;
    background: var(--nuoang-primary-color);
    color: #fff;
    font-size: 12px;
    font-weight: 500;
    border-radius: 20px;
    text-decoration: none;
    transition: all 0.3s;
    box-shadow: 0 3px 10px rgba(22,93,255,0.3);
    position: relative;
    z-index: 2;
}
.nuoang-about-intro-circle-btn:hover {
    background: #0e42d2;
    transform: translateY(-2px);
    box-shadow: 0 5px 14px rgba(22,93,255,0.4);
}
.nuoang-about-intro-img-badge {
    position: absolute;
    bottom: 20px;
    right: -10px;
    background: #fff;
    padding: 14px 22px;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
    z-index: 5;
    text-align: center;
}
.nuoang-about-intro-img-badge .big {
    font-size: 24px;
    font-weight: 800;
    color: var(--nuoang-primary-color);
    line-height: 1;
}
.nuoang-about-intro-img-badge .big span {
    font-size: 12px;
}
.nuoang-about-intro-img-badge .small {
    font-size: 11px;
    color: #86909c;
    margin-top: 4px;
}
.nuoang-about-intro-deco-circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.85;
}
.nuoang-about-intro-deco-circle.d1 {
    top: 10px;
    right: 10px;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #ff7d00, #ff9a2e);
}
.nuoang-about-intro-deco-circle.d2 {
    bottom: 50px;
    left: 5px;
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, #722ed1, #9254de);
}



/* ===== 企业文化 ===== */
.nuoang-about-culture-layout {
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.nuoang-about-culture-top {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}
.nuoang-about-culture-card {
    position: relative;
    background: #fff;
    border-radius: 6px;
    padding: 40px 36px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
    overflow: hidden;
    transition: box-shadow 0.3s ease;
    height: 220px;
    box-sizing: border-box;
    display: flex;
    align-items: center;
}
.nuoang-about-culture-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}
.nuoang-about-culture-full {
    height: 220px;
}
.nuoang-about-culture-num {
    position: absolute;
    top: 16px;
    right: 24px;
    font-size: 80px;
    font-weight: 700;
    color: #3269ff;
    opacity: 0.08;
    line-height: 1;
    font-family: 'DIN Alternate', DIN, Helvetica Neue, Arial, sans-serif;
}
.nuoang-about-culture-body {
    position: relative;
    z-index: 1;
}
.nuoang-about-culture-en {
    font-size: 16px;
    font-weight: 700;
    color: #3269ff;
    letter-spacing: 0.05em;
    display: block;
    margin-bottom: 8px;
}
.nuoang-about-culture-cn {
    font-size: 26px;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0 0 14px;
    line-height: 1.3;
}
.nuoang-about-culture-desc {
    font-size: 16px;
    color: #6B7280;
    line-height: 1.7;
    margin: 0;
}
.nuoang-about-culture-image {
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}
.nuoang-about-culture-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* ===== 企业愿景 ===== */
.nuoang-about-vision-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}
.nuoang-about-vision-card {
    text-align: center;
    padding: 0 16px;
}
.nuoang-about-vision-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 20px;
}
.nuoang-about-vision-icon svg {
    width: 56px;
    height: 56px;
}
.nuoang-about-vision-title {
    font-size: 18px;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0 0 12px;
    line-height: 1.4;
}
.nuoang-about-vision-desc {
    font-size: 14px;
    color: #6B7280;
    line-height: 1.7;
    margin: 0 auto;
    max-width: 300px;
}

/* ===== 发展历程 ===== */
.nuoang-about-timeline {
    position: relative;
    padding-left: 32px;
}
.nuoang-about-timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: linear-gradient(180deg, var(--nuoang-primary-color) 0%, #E5E7EB 100%);
}
.nuoang-about-timeline-item {
    position: relative;
    padding-bottom: 40px;
}
.nuoang-about-timeline-item:last-child {
    padding-bottom: 0;
}
.nuoang-about-timeline-item::before {
    content: '';
    position: absolute;
    left: -37px;
    top: 4px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--nuoang-primary-color);
    border: 3px solid #fff;
    box-shadow: 0 0 0 2px var(--nuoang-primary-color);
}
.nuoang-about-timeline-year {
    font-size: 20px;
    font-weight: 700;
    color: var(--nuoang-primary-color);
    margin-bottom: 8px;
    font-family: 'DIN Alternate', DIN, 'Helvetica Neue', Arial, sans-serif;
}
.nuoang-about-timeline-title {
    font-size: 18px;
    font-weight: 600;
    color: #1a1a1a;
    margin: 0 0 8px;
}
.nuoang-about-timeline-desc {
    font-size: 14px;
    color: #6B7280;
    line-height: 1.7;
    margin: 0;
}

/* ===== 资质证书 ===== */
.nuoang-about-cert-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.nuoang-about-cert-card {
    background: #fff;
    border: 1px solid #E5E7EB;
    border-radius: 6px;
    padding: 32px 20px;
    text-align: center;
    transition: box-shadow 0.3s ease;
}
.nuoang-about-cert-card:hover {
    box-shadow: 0 8px 24px rgba(31, 41, 55, 0.06);
}
.nuoang-about-cert-logo {
    width: 120px;
    height: 60px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.nuoang-about-cert-logo img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}
.nuoang-about-cert-name {
    font-size: 15px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 6px;
}
.nuoang-about-cert-desc {
    font-size: 13px;
    color: #9CA3AF;
}

/* ===== CTA (复用 nuoang-cta-section) ===== */

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .nuoang-about-hero {
        min-height: 280px;
        padding-top: 56px;
    }
    .nuoang-about-hero-overlay {
        padding: 0 20px;
    }
    .nuoang-about-hero-title {
        font-size: 24px;
    }
    .nuoang-about-hero-subtitle {
        font-size: 14px;
        max-width: 100%;
    }
    .nuoang-about-intro-inner {
        grid-template-columns: 1fr;
        gap: 36px;
    }
    .nuoang-about-intro-title {
        font-size: 24px;
    }
    .nuoang-about-intro-lead {
        font-size: 14px;
    }
    .nuoang-about-intro-img-wrap {
        order: -1;
    }
    .nuoang-about-intro-img-circle {
        width: 260px;
        height: 260px;
    }
    .nuoang-about-intro-img-circle::after {
        top: -22px;
        left: -22px;
        right: -22px;
        bottom: -22px;
    }
    .nuoang-about-intro-circle-logo {
        width: 130px;
        margin-bottom: 16px;
    }
    .nuoang-about-intro-circle-slogan {
        font-size: 13px;
        margin-bottom: 16px;
    }
    .nuoang-about-intro-circle-btn {
        padding: 5px 12px;
        font-size: 10px;
    }
    .nuoang-about-intro-img-ring {
        width: 300px;
        height: 300px;
    }
    .nuoang-about-intro-img-badge {
        right: 0;
        bottom: 10px;
        padding: 12px 18px;
    }
    .nuoang-about-intro-img-badge .big {
        font-size: 20px;
    }
    .nuoang-about-intro-features {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }
    .nuoang-about-intro-feat {
        padding: 14px 8px;
        border-radius: 10px;
    }
    .nuoang-about-intro-feat .ico {
        width: 40px;
        height: 40px;
        border-radius: 10px;
        margin-bottom: 8px;
    }
    .nuoang-about-intro-feat .ico svg {
        width: 18px;
        height: 18px;
    }
    .nuoang-about-intro-feat h4 {
        font-size: 12px;
    }
    .nuoang-about-intro-feat p {
        font-size: 10px !important;
    }
    .nuoang-about-intro-deco-circle.d1 {
        width: 40px;
        height: 40px;
        top: 0;
        right: 0;
    }
    .nuoang-about-intro-deco-circle.d2 {
        width: 28px;
        height: 28px;
        bottom: 30px;
        left: 0;
    }
    .nuoang-about-culture-top {
        grid-template-columns: 1fr;
    }
    .nuoang-about-culture-card {
        padding: 32px 24px;
    }
    .nuoang-about-culture-num {
        font-size: 60px;
    }
    .nuoang-about-culture-cn {
        font-size: 18px;
    }
    .nuoang-about-culture-image {
        height: 200px;
    }
    .nuoang-about-vision-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .nuoang-about-vision-icon {
        width: 48px;
        height: 48px;
    }
    .nuoang-about-vision-icon svg {
        width: 48px;
        height: 48px;
    }
    .nuoang-about-vision-title {
        font-size: 16px;
    }
    .nuoang-about-vision-desc {
        font-size: 13px;
    }
    .nuoang-about-cert-grid {
        grid-template-columns: 1fr 1fr;
    }
    .nuoang-about-section-title {
        font-size: 24px;
    }
}

@media (max-width: 480px) {
    .nuoang-about-intro-features {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    .nuoang-about-intro-feat {
        display: flex;
        align-items: center;
        text-align: left;
        gap: 12px;
        padding: 12px 16px;
    }
    .nuoang-about-intro-feat .ico {
        margin: 0;
        flex-shrink: 0;
    }
    .nuoang-about-intro-img-circle {
        width: 220px;
        height: 220px;
    }
    .nuoang-about-intro-img-circle::after {
        top: -18px;
        left: -18px;
        right: -18px;
        bottom: -18px;
    }
    .nuoang-about-intro-circle-logo {
        width: 100px;
        margin-bottom: 12px;
    }
    .nuoang-about-intro-circle-slogan {
        font-size: 11px;
        margin-bottom: 12px;
    }
    .nuoang-about-intro-circle-btn {
        padding: 5px 12px;
        font-size: 10px;
    }
    .nuoang-about-intro-img-ring {
        width: 260px;
        height: 260px;
    }
}