/* ============================================================ */
/* ===== 核心实力 — 5项 ===== */
/* ============================================================ */
.strength {
    padding: 80px 0 60px;
    background: var(--white);
}
.strength-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.strength-grid .strength-item:nth-child(4) {
    grid-column: 1 / 2;
}
.strength-grid .strength-item:nth-child(5) {
    grid-column: 2 / 3;
}

.strength-item {
    background: var(--off-white);
    border-radius: var(--radius);
    padding: 32px 28px;
    border: 1px solid rgba(26, 95, 180, 0.06);
    box-shadow: 0 8px 30px -12px rgba(0, 0, 0, 0.02);
    transition: var(--transition);
}
.strength-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(43, 123, 230, 0.10);
}
.strength-item .icon-wrap {
    font-size: 2.2rem;
    color: var(--blue-bright);
    margin-bottom: 12px;
    display: inline-block;
}
.strength-item h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-dark);
}
.strength-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 10px;
}
.strength-item p:last-child {
    margin-bottom: 0;
}

/* ============================================================ */
/* ===== 核心竞争优势 — 7项 ===== */
/* ============================================================ */
.advantages-page {
    padding: 80px 0 60px;
    background: var(--light-bg);
}
.advantages-page-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.advantages-page-grid .advantage-item:nth-child(7) {
    grid-column: 2 / 3;
}

.advantage-item {
    background: var(--white);
    border-radius: var(--radius);
    padding: 32px 28px;
    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(-6px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(43, 123, 230, 0.10);
}
.advantage-item .icon-wrap {
    font-size: 2rem;
    color: var(--blue-bright);
    margin-bottom: 12px;
    display: inline-block;
}
.advantage-item h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-dark);
}
.advantage-item p {
    color: var(--text-secondary);
    font-size: 0.93rem;
    line-height: 1.8;
    margin-bottom: 10px;
}
.advantage-item p:last-child {
    margin-bottom: 0;
}

/* ----- CTA ----- */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(145deg, #06204a 0%, #0a3a7a 40%, #0f4a9a 100%);
    color: #fff;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.cta-section .glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
}
.cta-section .glow-orb:nth-child(1) {
    width: 300px;
    height: 300px;
    top: -20%;
    right: -10%;
    background: rgba(43, 123, 230, 0.20);
}
.cta-section .glow-orb:nth-child(2) {
    width: 200px;
    height: 200px;
    bottom: -10%;
    left: -5%;
    background: rgba(91, 154, 255, 0.15);
}
.cta-section .container {
    position: relative;
    z-index: 2;
}
.cta-section h2 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2.4rem, 4.5vw, 3.6rem);
    font-weight: 800;
    margin-bottom: 18px;
}
.cta-section h2 span {
    background: linear-gradient(135deg, #8bb8ff, #c0d8f5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.cta-section p {
    font-size: 1.15rem;
    max-width: 560px;
    margin: 0 auto 36px;
    opacity: 0.85;
    line-height: 1.7;
}
.cta-section .btn-group {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
}
.cta-section .btn-white {
    background: #fff;
    color: var(--blue-deep);
    box-shadow: 0 8px 28px -6px rgba(0, 0, 0, 0.25);
}
.cta-section .btn-white:hover {
    background: var(--blue-lighter);
    color: #fff;
    box-shadow: 0 16px 48px -8px rgba(43, 123, 230, 0.40);
}
.cta-section .btn-outline-white {
    background: transparent;
    color: #fff;
    border: 1.5px solid rgba(255, 255, 255, 0.30);
    box-shadow: none;
}
.cta-section .btn-outline-white:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: #fff;
    color: #fff;
    transform: translateY(-3px);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .strength-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .strength-grid .strength-item:nth-child(4) {
        grid-column: auto;
    }
    .strength-grid .strength-item:nth-child(5) {
        grid-column: auto;
    }
    .advantages-page-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .advantages-page-grid .advantage-item:nth-child(7) {
        grid-column: auto;
    }
}

@media (max-width: 768px) {
    .strength-grid {
        grid-template-columns: 1fr;
    }
    .advantages-page-grid {
        grid-template-columns: 1fr;
    }
    .section-header {
        margin-bottom: 40px;
    }
}

@media (max-width: 480px) {
    .strength-item {
        padding: 24px 20px;
    }
    .advantage-item {
        padding: 24px 20px;
    }
}