/* 解决方案页 /Solutions/ */
.solutions-page {
    background: #0a0f1a;
    color: #e2e8f0;
}
.solutions-page .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
.solutions-page .product-banner {
    background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 40%, #1e40af 70%, #312e81 100%);
}
.solutions-page .product-banner::after {
    background:
        radial-gradient(ellipse at 20% 0%, rgba(99,102,241,0.35) 0%, transparent 55%),
        radial-gradient(ellipse at 85% 100%, rgba(59,130,246,0.25) 0%, transparent 50%);
}

/* 首屏数据条 */
.sol-hero-stats {
    margin-top: -36px;
    position: relative;
    z-index: 3;
    padding-bottom: 10px;
}
.sol-hero-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    background: rgba(15,23,42,0.92);
    border-radius: 16px;
    padding: 24px 28px;
    box-shadow: 0 12px 40px rgba(0,0,0,0.35);
    border: 1px solid rgba(255,255,255,0.1);
    backdrop-filter: blur(12px);
}
.sol-stat {
    text-align: center;
    padding: 8px 12px;
    border-right: 1px solid rgba(255,255,255,0.08);
}
.sol-stat:last-child { border-right: none; }
.sol-stat-num {
    display: block;
    font-size: 28px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 4px;
    line-height: 1.2;
}
.sol-stat-label { font-size: 13px; color: #94a3b8; }

/* 产业矩阵主区 */
.sol-industries {
    position: relative;
    padding: 72px 0 88px;
    overflow: hidden;
}
.sol-industries-bg {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, #0a0f1a 0%, #0f172a 50%, #0a0f1a 100%);
    pointer-events: none;
}
.sol-industries-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 20%, transparent 75%);
}
.sol-industries-bg::after {
    content: '10';
    position: absolute;
    right: -2%;
    top: 50%;
    transform: translateY(-50%);
    font-size: clamp(160px, 20vw, 280px);
    font-weight: 900;
    color: rgba(255,255,255,0.02);
    line-height: 1;
    pointer-events: none;
    letter-spacing: -8px;
}
.sol-industries > .container { position: relative; z-index: 1; }

.sol-head {
    text-align: center;
    max-width: 820px;
    margin: 0 auto 40px;
}
.sol-head .sol-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 22px;
    background: rgba(201,162,39,0.12);
    border: 1px solid rgba(201,162,39,0.28);
    border-radius: 50px;
    color: #fde68a;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 20px;
}
.sol-head h2 {
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 800;
    color: #fff;
    margin: 0 0 16px;
    line-height: 1.2;
}
.sol-head .sol-accent {
    width: 72px;
    height: 4px;
    background: linear-gradient(90deg, #c9a227, #fbbf24, #c9a227);
    border-radius: 2px;
    margin: 0 auto 20px;
}
.sol-head p {
    font-size: 16px;
    color: #94a3b8;
    line-height: 1.85;
    margin: 0;
}

/* 产业导航 */
.sol-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-bottom: 32px;
    padding: 10px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 14px;
    backdrop-filter: blur(10px);
}
.sol-nav-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: 9px;
    border: 1px solid transparent;
    background: transparent;
    color: #cbd5e1;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    white-space: nowrap;
    font-family: inherit;
}
.sol-nav-item:hover,
.sol-nav-item.is-active {
    background: rgba(59,130,246,0.18);
    border-color: rgba(59,130,246,0.35);
    color: #fff;
}
.sol-nav-num {
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 1px;
    color: #c9a227;
}

/* 产业卡片网格 */
.sol-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}
.sol-card {
    display: flex;
    flex-direction: column;
    background: rgba(15,23,42,0.75);
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid rgba(255,255,255,0.1);
    text-decoration: none;
    color: inherit;
    transition: transform 0.35s, box-shadow 0.35s, border-color 0.35s;
    box-shadow: 0 8px 28px rgba(0,0,0,0.25);
    scroll-margin-top: 120px;
}
.sol-card:hover,
.sol-card.is-highlight {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.4);
    border-color: rgba(201,162,39,0.4);
}

.sol-card-cover {
    position: relative;
    height: 220px;
    overflow: hidden;
    background-color: #1e3a8a;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}
.sol-card-cover::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 35%, rgba(10,15,26,0.75));
    z-index: 1;
    pointer-events: none;
}
.sol-card-img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s cubic-bezier(0.4,0,0.2,1);
}
.sol-card-img.is-fallback-hidden { display: none; }
.sol-card:hover .sol-card-img { transform: scale(1.06); }

.sol-card-cover[data-dir="newenergy"],
.sol-card-cover[data-dir="zhihuilvdian"] { background-image: url('/imges/Smart Energy.png'); }
.sol-card-cover[data-dir="zhihuixindian"],
.sol-card-cover[data-dir="zhihuisuanli"] { background-image: url('/imges/Computing.png'); }
.sol-card-cover[data-dir="food"] { background-image: url('/imges/Food.png'); }
.sol-card-cover[data-dir="engineering"] { background-image: url('/imges/Precision.png'); }
.sol-card-cover[data-dir="healthcare"] { background-image: url('/imges/Healthcare.png'); }
.sol-card-cover[data-dir="transportation"] { background-image: url('/imges/Transport.png'); }
.sol-card-cover[data-dir="mining"] { background-image: url('/imges/Industrial.png'); }
.sol-card-cover[data-dir="warehousing"] { background-image: url('/imges/Agriculture.png'); }

.sol-card-num {
    position: absolute;
    top: 14px;
    left: 14px;
    z-index: 2;
    padding: 5px 11px;
    background: rgba(15,23,42,0.55);
    border: 1px solid rgba(255,255,255,0.18);
    border-radius: 8px;
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 2px;
    color: #fde68a;
    backdrop-filter: blur(6px);
}

.sol-card-body {
    padding: 22px 24px 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.sol-card-head {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 12px;
}
.sol-card-icon {
    width: 46px;
    height: 46px;
    flex-shrink: 0;
    background: rgba(59,130,246,0.15);
    border: 1px solid rgba(59,130,246,0.25);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #93c5fd;
    transition: background 0.35s, color 0.35s;
}
.sol-card-icon::before {
    font-family: "iconfont" !important;
    font-style: normal;
    font-size: 20px;
    line-height: 1;
    display: block;
    content: "\e6a8";
    -webkit-font-smoothing: antialiased;
}
.sol-card-icon[data-dir="newenergy"]::before,
.sol-card-icon[data-dir="zhihuilvdian"]::before { content: "\e6ae"; }
.sol-card-icon[data-dir="zhihuixindian"]::before,
.sol-card-icon[data-dir="zhihuisuanli"]::before { content: "\e6ad"; }
.sol-card-icon[data-dir="food"]::before { content: "\e622"; }
.sol-card-icon[data-dir="engineering"]::before { content: "\e6b0"; }
.sol-card-icon[data-dir="healthcare"]::before { content: "\e693"; }
.sol-card-icon[data-dir="transportation"]::before { content: "\e698"; }
.sol-card-icon[data-dir="mining"]::before { content: "\e68b"; }
.sol-card-icon[data-dir="warehousing"]::before { content: "\e6af"; }
.sol-card:hover .sol-card-icon {
    background: #1e40af;
    color: #fff;
    border-color: transparent;
}
.sol-card-title {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 4px;
    line-height: 1.3;
}
.sol-card-en {
    font-size: 11px;
    color: #64748b;
    letter-spacing: 0.6px;
    text-transform: uppercase;
}
.sol-card-desc {
    font-size: 14px;
    color: #94a3b8;
    line-height: 1.75;
    margin-bottom: 14px;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.sol-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 14px;
}
.sol-card-tag {
    padding: 4px 11px;
    background: rgba(59,130,246,0.12);
    color: #93c5fd;
    border: 1px solid rgba(59,130,246,0.2);
    border-radius: 14px;
    font-size: 11px;
    font-weight: 500;
}
.sol-card-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #fde68a;
    font-size: 14px;
    font-weight: 600;
    margin-top: auto;
    transition: gap 0.3s;
}
.sol-card:hover .sol-card-more { gap: 14px; }

/* 服务实力 */
.sol-stats {
    padding: 64px 0;
    background: linear-gradient(135deg, #1e3a8a, #1e40af);
    border-top: 1px solid rgba(255,255,255,0.06);
}
.sol-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    text-align: center;
}
.sol-stats-item { padding: 16px; }
.sol-stats-num {
    font-size: 40px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 8px;
    line-height: 1;
}
.sol-stats-label { font-size: 14px; color: rgba(255,255,255,0.75); }

/* CTA */
.sol-cta {
    padding: 80px 0;
    text-align: center;
    background: linear-gradient(180deg, #0f172a, #0a0f1a);
    border-top: 1px solid rgba(255,255,255,0.06);
}
.sol-cta h3 {
    font-size: clamp(26px, 3vw, 34px);
    font-weight: 800;
    color: #fff;
    margin-bottom: 16px;
}
.sol-cta p {
    font-size: 16px;
    color: #94a3b8;
    margin-bottom: 36px;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.85;
}
.sol-cta-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}
.sol-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 40px;
    background: linear-gradient(135deg, #1e40af, #3b82f6);
    color: #fff;
    font-size: 16px;
    font-weight: 600;
    border-radius: 10px;
    text-decoration: none;
    transition: all 0.35s;
    box-shadow: 0 8px 28px rgba(30,64,175,0.35);
}
.sol-cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 36px rgba(30,64,175,0.45);
}
.sol-cta-btn--outline {
    background: transparent;
    color: #93c5fd;
    border: 1px solid rgba(59,130,246,0.45);
    box-shadow: none;
}
.sol-cta-btn--outline:hover {
    background: rgba(59,130,246,0.12);
}

/* 入场动画 */
.sol-reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.sol-reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 1200px) {
    .sol-grid { grid-template-columns: 1fr; }
    .sol-stats-grid { grid-template-columns: repeat(2, 1fr); }
    .sol-hero-stats-grid { grid-template-columns: repeat(2, 1fr); }
    .sol-stat:nth-child(2) { border-right: none; }
}
@media (max-width: 768px) {
    .sol-industries { padding: 56px 0 64px; }
    .sol-hero-stats-grid { grid-template-columns: 1fr 1fr; padding: 20px; }
    .sol-stat { border-right: none; border-bottom: 1px solid rgba(255,255,255,0.08); padding-bottom: 16px; }
    .sol-stat:nth-last-child(-n+2) { border-bottom: none; }
    .sol-card-cover { height: 200px; }
    .sol-nav { gap: 6px; padding: 8px; }
    .sol-nav-item { padding: 6px 10px; font-size: 11px; }
}
@media (max-width: 480px) {
    .sol-cta-actions { flex-direction: column; align-items: stretch; }
    .sol-cta-btn { justify-content: center; }
    .sol-stats-grid { grid-template-columns: 1fr 1fr; }
}