/* ---------- 英雄区（首页全屏） ---------- */
.hero {
    padding: 0;
    height: 100vh;
    min-height: 720px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    background: var(--blue-deep);
}
.hero .hero-bg-image {
    position: absolute;
    inset: 0;
    background: url('../img/bg.jpg') center center / cover no-repeat;
    opacity: 0.55;
    z-index: 0;
}
.hero .hero-bg-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(43, 123, 230, 0.70) 0%, rgba(10, 50, 110, 0.50) 100%);
}
.hero .container {
    position: relative;
    z-index: 2;
    width: 100%;
}
.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    min-height: 60vh;
}
.hero-content h1 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2.8rem, 6vw, 4.6rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    letter-spacing: -1px;
    color: #fff;
}
.hero-content h1 .text-gradient-strong {
    background: linear-gradient(135deg, #8bb8ff, #c0d8f5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-content p {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.75);
    max-width: 520px;
    margin-bottom: 36px;
    line-height: 1.8;
}
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
}
.hero-actions .btn {
    background: var(--blue-bright);
    box-shadow: 0 8px 28px -6px rgba(43, 123, 230, 0.40);
}
.hero-actions .btn:hover {
    box-shadow: 0 16px 48px -8px rgba(43, 123, 230, 0.60);
}
.hero-actions .btn-outline {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.30);
}
.hero-actions .btn-outline:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: #fff;
    color: #fff;
}
.hero-stats {
    display: flex;
    gap: 48px;
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
}
.hero-stats .stat h3 {
    font-size: 2.4rem;
    font-weight: 700;
    color: #8bb8ff;
    letter-spacing: -0.5px;
}
.hero-stats .stat p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.55);
    margin-top: 4px;
}
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
}
.hero-visual-image {
    width: 100%;
    max-width: 560px;
    aspect-ratio: 4/3;
    border-radius: var(--radius);
    background: url('../img/a1.jpg') center center / cover no-repeat;
    box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.50);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.hero-visual-image:hover {
    transform: scale(1.01) translateY(-4px);
    box-shadow: 0 40px 100px -20px rgba(0, 0, 0, 0.60);
}
.hero-visual-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(145deg, rgba(43, 123, 230, 0.10) 0%, transparent 60%);
    border-radius: var(--radius);
    pointer-events: none;
}
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    .hero-content p {
        margin-left: auto;
        margin-right: auto;
    }
    .hero-actions {
        justify-content: center;
    }
    .hero-stats {
        justify-content: center;
    }
    .hero-visual-image {
        max-width: 100%;
        aspect-ratio: 16/9;
    }
}
@media (max-width: 768px) {

    .hero {
        min-height: 100vh;
        height: auto;
        padding: 100px 0 60px;
    }
    .hero-grid {
        gap: 30px;
    }
    .hero-content h1 {
        font-size: clamp(2.2rem, 8vw, 3.2rem);
    }
    .hero-stats {
        gap: 28px;
        flex-wrap: wrap;
        justify-content: center;
    }
    .hero-stats .stat h3 {
        font-size: 2rem;
    }
}
@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    .hero-content p {
        font-size: 1rem;
    }
    .hero-stats .stat h3 {
        font-size: 1.6rem;
    }
}

/* ---------- 关于我们 ---------- */
.about {
    padding: 80px 0;
    background: var(--white);
}
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.about-image .about-card {
    background: linear-gradient(145deg, #eef4fe, #dce8fa);
    border-radius: var(--radius);
    padding: 48px 40px;
    width: 100%;
    border: 1px solid rgba(43, 123, 230, 0.08);
    box-shadow: var(--shadow-card);
    transition: var(--transition);
}
.about-image .about-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}
.about-image .about-card .big-icon {
    font-size: 4rem;
    color: var(--blue-bright);
    margin-bottom: 20px;
}
.about-image .about-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 12px;
}
.about-image .about-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
}
.about-image .about-card .highlight-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
}
.about-image .about-card .highlight-list span {
    background: rgba(43, 123, 230, 0.08);
    padding: 6px 16px;
    border-radius: 60px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}
.about-text h2 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2.2rem, 3.5vw, 3rem);
    font-weight: bold;
    margin-bottom: 20px;
    line-height: 1.2;
}
.about-text p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.9;
    margin-bottom: 20px;
}
.about-text .about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 24px;
}
.about-text .about-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    color: var(--text-dark);
}
.about-text .about-features li i {
    color: var(--blue-bright);
    font-size: 1.2rem;
}
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .about-text .about-features {
        justify-items: center;
    }
}
@media (max-width: 768px) {
    .about-text .about-features {
        grid-template-columns: 1fr;
        justify-items: center;
    }
}

/* ---------- 核心优势 ---------- */
.advantages {
    padding: 80px 0;
    background: linear-gradient(145deg, #dce8fa 0%, #eef4fe 30%, #f0f6ff 60%, #e6effc 100%);
    position: relative;
}
.advantages::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 30%, rgba(43, 123, 230, 0.04) 0%, transparent 60%),
        radial-gradient(circle at 80% 70%, rgba(43, 123, 230, 0.03) 0%, transparent 50%);
    pointer-events: none;
}
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
    z-index: 1;
}
.advantage-item {
    text-align: center;
    padding: 32px 20px;
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(4px);
    border-radius: var(--radius);
    border: 1px solid rgba(26, 95, 180, 0.06);
    box-shadow: 0 8px 30px -12px rgba(0, 0, 0, 0.02);
    transition: var(--transition);
}
.advantage-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-hover);
    border-color: rgba(43, 123, 230, 0.12);
    background: rgba(255, 255, 255, 0.92);
}
.advantage-item .icon-wrap {
    font-size: 2.8rem;
    color: var(--blue-primary);
    margin-bottom: 12px;
    display: inline-block;
    transition: var(--transition);
}
.advantage-item:hover .icon-wrap {
    transform: scale(1.08);
    color: var(--blue-bright);
}
.advantage-item .number {
    font-family: 'Playfair Display', serif;
    font-size: 3.2rem;
    font-weight: 800;
    color: var(--blue-primary);
    line-height: 1;
    margin-bottom: 6px;
}
.advantage-item .label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark);
}
.advantage-item .desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 6px;
}
@media (max-width: 1024px) {
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 768px) {
    .advantages-grid {
        gap: 16px;
    }
}
@media (max-width: 480px) {
    .advantages-grid {
        gap: 12px;
    }
    .advantage-item {
        padding: 20px 12px;
    }
    .advantage-item .number {
        font-size: 2.4rem;
    }
}

/* ---------- 服务内容 ---------- */
.services {
    padding: 80px 0 60px;
    background: var(--white);
}
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.service-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 40px 32px;
    border: 1px solid rgba(26, 95, 180, 0.06);
    box-shadow: 0 8px 30px -12px rgba(0, 0, 0, 0.02);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.service-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--blue-primary), var(--blue-lighter));
    opacity: 0;
    transition: var(--transition);
}
.service-card:hover::after {
    opacity: 1;
}
.service-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-hover);
    border-color: rgba(26, 95, 180, 0.10);
}
.service-card .icon {
    font-size: 2.4rem;
    color: var(--blue-bright);
    margin-bottom: 20px;
    display: inline-block;
}
.service-card h3 {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 12px;
}
.service-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}
.learn-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--blue-primary);
    font-weight: 500;
    margin-top: 20px;
    font-size: 0.9rem;
    transition: var(--transition);
    cursor: pointer;
}
.learn-more i {
    transition: var(--transition);
}
.service-card:hover .learn-more i {
    transform: translateX(6px);
}
.about-text:hover .learn-more i {
    transform: translateX(6px);
}
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 768px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
}

/* ---------- 成功案例 ---------- */
.cases {
    padding: 80px 0;
    background: var(--light-bg);
}
.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.case-item {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid rgba(26, 95, 180, 0.06);
    box-shadow: 0 8px 30px -12px rgba(0, 0, 0, 0.02);
    transition: var(--transition);
}
.case-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-hover);
    border-color: rgba(43, 123, 230, 0.12);
}
.case-item .case-image {
    height: 200px;
    width: 100%;
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
}
.case-item .case-image .case-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px 24px 16px;
    background: linear-gradient(0deg, rgba(6, 32, 74, 0.60) 0%, transparent 100%);
}
.case-item .case-image .case-overlay .case-tag-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.18);
    backdrop-filter: blur(6px);
    padding: 4px 14px;
    border-radius: 60px;
    font-size: 0.65rem;
    font-weight: 600;
    color: #fff;
    letter-spacing: 0.5px;
}
.case-item .case-body {
    padding: 24px 28px 32px;
}
.case-item .case-tag {
    display: inline-block;
    background: rgba(43, 123, 230, 0.08);
    color: var(--blue-primary);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 4px 14px;
    border-radius: 60px;
    margin-bottom: 12px;
    font-weight: 600;
}
.case-item h4 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
}
.case-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}
.case-item .case-metric {
    margin-top: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--blue-bright);
    font-size: 0.95rem;
}
@media (max-width: 1024px) {
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 768px) {
    .cases-grid {
        grid-template-columns: 1fr;
    }
    .case-item .case-image {
        height: 160px;
    }
}
@media (max-width: 480px) {
    .case-item .case-image {
        height: 140px;
    }
}

/* ---------- 客户评价 ---------- */
.testimonials {
    padding: 80px 0;
    background: var(--white);
}
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.testimonial-item {
    background: var(--off-white);
    border-radius: var(--radius);
    padding: 36px 32px;
    border: 1px solid rgba(26, 95, 180, 0.06);
    transition: var(--transition);
}
.testimonial-item:hover {
    transform: translateY(-6px) scale(1.01);
    box-shadow: var(--shadow-hover);
    border-color: rgba(43, 123, 230, 0.10);
}
.testimonial-item .quote-icon {
    font-size: 2rem;
    color: var(--blue-soft);
    opacity: 0.4;
    margin-bottom: 12px;
}
.testimonial-item blockquote {
    font-size: 0.98rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-style: italic;
}
.testimonial-item .client {
    display: flex;
    align-items: center;
    gap: 14px;
}
.testimonial-item .client .avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--blue-primary), var(--blue-bright));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1.1rem;
    flex-shrink: 0;
}
.testimonial-item .client .info h4 {
    font-weight: 700;
    font-size: 1rem;
}
.testimonial-item .client .info span {
    font-size: 0.85rem;
    color: var(--text-muted);
}
.testimonial-item .stars {
    color: #f5b342;
    font-size: 0.9rem;
    margin-top: 4px;
    letter-spacing: 2px;
}
@media (max-width: 1024px) {
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 768px) {
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
}

/* ---------- 新闻资讯 ---------- */
.news {
    padding: 80px 0;
    background: var(--light-bg);
}
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.news-item {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid rgba(26, 95, 180, 0.06);
    box-shadow: 0 8px 30px -12px rgba(0, 0, 0, 0.02);
    transition: var(--transition);
}
.news-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-hover);
    border-color: rgba(43, 123, 230, 0.12);
}
.news-item .news-body {
    padding: 28px 28px 32px;
}
.news-item .news-date {
    display: inline-block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 10px;
    font-weight: 500;
}
.news-item h4 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    line-height: 1.4;
}
.news-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}
.news-item .news-more {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--blue-primary);
    font-weight: 500;
    margin-top: 16px;
    font-size: 0.85rem;
    transition: var(--transition);
    cursor: pointer;
}
.news-item .news-more i {
    transition: var(--transition);
}
.news-item:hover .news-more i {
    transform: translateX(6px);
}
@media (max-width: 1024px) {
    .news-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 768px) {
    .news-grid {
        grid-template-columns: 1fr;
    }
}