:root {
    --brand: #1a56ff;
    --brand-deep: #0e2f8f;
    --brand-soft: #eaf0ff;
    --cyan: #00a8b5;
    --ink: #111a2b;
    --ink-2: #3d4a63;
    --ink-3: #6b7891;
    --line: #e6eaf2;
    --bg: #ffffff;
    --bg-soft: #f6f8fc;
    --radius: 18px;
    --shadow-sm: 0 2px 10px rgba(17,26,43,.05);
    --shadow: 0 10px 30px rgba(17,26,43,.07);
    --shadow-lg: 0 22px 60px rgba(17,26,43,.12);
    --max: 1200px;
}

a:focus,
a:hover {
    color: #209EF2;
    /*text-decoration: underline;*/
    text-decoration: none !important;
    outline: 0;
    -moz-outline: none;
}

a:active {
    color: #209EF2;
}

.wrap {
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 28px
}
/* ---------- Hero ---------- */
.hero {
    position: relative;
    overflow: hidden;
    background: radial-gradient(1000px 460px at 78% -10%, rgba(26,86,255,.13), transparent 60%), radial-gradient(760px 380px at 8% 8%, rgba(0,168,181,.11), transparent 62%), linear-gradient(180deg,#fbfcff,#ffffff);
    padding: 96px 0 84px;
}

    .hero::before {
        content: "";
        position: absolute;
        inset: 0;
        background-image: linear-gradient(rgba(17,26,43,.035) 1px,transparent 1px), linear-gradient(90deg,rgba(17,26,43,.035) 1px,transparent 1px);
        background-size: 56px 56px;
        mask-image: radial-gradient(720px 460px at 50% 0%,#000,transparent 78%);
        -webkit-mask-image: radial-gradient(720px 460px at 50% 0%,#000,transparent 78%);
    }

.hero-inner {
    position: relative;
    text-align: center
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    border: 1px solid var(--line);
    color: var(--brand);
    padding: 6px 16px;
    border-radius: 99px;
    font-size: 13px;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--brand);
    animation: pulse 1.8s infinite
}

@keyframes pulse {
    0%,100% {
        opacity: 1;
        transform: scale(1)
    }

    50% {
        opacity: .35;
        transform: scale(.78)
    }
}

h1 {
    font-size: clamp(34px,5vw,56px);
    line-height: 1.22;
    font-weight: 800;
    letter-spacing: -.5px;
    margin: 22px 0 18px;
}

    h1 em {
        font-style: normal;
        background: linear-gradient(100deg,var(--brand),var(--cyan));
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
    }

.lead {
    font-size: 17px;
    color: var(--ink-2);
    max-width: 660px;
    margin: 0 auto;
    line-height: 1.85
}

.stats {
    display: flex;
    justify-content: center;
    gap: 0;
    margin-top: 52px;
    flex-wrap: wrap;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    max-width: 860px;
    margin-left: auto;
    margin-right: auto;
}

.stat {
    flex: 1;
    min-width: 150px;
    padding: 26px 18px;
    border-right: 1px solid var(--line)
}

    .stat:last-child {
        border-right: none
    }

    .stat b {
        display: block;
        font-size: 30px;
        font-weight: 800;
        letter-spacing: -.5px;
        color: var(--ink)
    }

        .stat b span {
            font-size: 16px;
            color: var(--brand);
            margin-left: 2px
        }

    .stat span.lbl {
        font-size: 13px;
        color: var(--ink-3);
        letter-spacing: .5px
    }

/* ---------- 通用区块 ---------- */
section {
    padding: 96px 0
}

.sec-head {
    /*            max-width: 720px;*/
    margin-bottom: 48px;
    text-align: center;
}

    .sec-head.center {
        text-align: center;
        margin-left: auto;
        margin-right: auto
    }

.tag {
    display: inline-block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 2.5px;
    color: var(--brand);
    background: var(--brand-soft);
    padding: 5px 13px;
    border-radius: 6px;
}

.sec-head h2 {
    font-size: clamp(26px,3.4vw,38px);
    font-weight: 800;
    margin: 16px 0 14px;
    letter-spacing: -.4px
}

.sec-head p {
    color: var(--ink-3);
    font-size: 16px
}

/* ---------- 服务能力：左侧分类 + 右侧列表 ---------- */
.svc-layout {
    display: grid;
    grid-template-columns: 212px 1fr;
    gap: 48px;
    align-items: start
}

.svc-nav {
    position: sticky;
    top: 96px;
    display: flex;
    flex-direction: column;
    gap: 2px
}

    .svc-nav .nl {
        font-size: 12px;
        font-weight: 700;
        letter-spacing: 2px;
        color: var(--ink-3);
        padding: 0 16px 12px;
    }

    .svc-nav button {
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 10px;
        width: 100%;
        background: none;
        border: none;
        border-left: 2px solid var(--line);
        padding: 11px 16px;
        font-family: inherit;
        font-size: 15px;
        color: var(--ink-2);
        cursor: pointer;
        text-align: left;
        transition: .22s;
    }

        .svc-nav button i {
            font-style: normal;
            font-size: 12px;
            color: var(--ink-3);
            background: var(--bg-soft);
            border-radius: 99px;
            padding: 1px 8px;
            transition: .22s;
        }

        .svc-nav button:hover {
            color: var(--brand);
            border-left-color: #bccbf5;
            background: #fafbff
        }

        .svc-nav button.on {
            color: var(--brand);
            font-weight: 700;
            border-left-color: var(--brand);
            background: var(--brand-soft);
        }

            .svc-nav button.on i {
                background: #fff;
                color: var(--brand)
            }

.svc-list {
    display: flex;
    flex-direction: column;
    gap: 12px
}

.svc {
    display: grid;
    grid-template-columns: 38px 54px 1fr 40px;
    align-items: center;
    gap: 0 22px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 22px 26px;
    transition: .3s cubic-bezier(.22,.8,.3,1);
}

    .svc:hover {
        border-color: transparent;
        box-shadow: var(--shadow);
        transform: translateX(4px)
    }

    .svc .idx {
        font-size: 13px;
        font-weight: 800;
        color: #b9c2d6;
        letter-spacing: 1px
    }

    .svc .ico {
        width: 54px;
        height: 54px;
        border-radius: 15px;
        display: grid;
        place-items: center;
        background: var(--brand-soft);
        color: var(--brand);
        transition: .3s;
    }

    .svc:hover .ico {
        background: linear-gradient(135deg,var(--brand),var(--cyan));
        color: #fff;
        transform: scale(1.05)
    }

.ico svg {
    width: 26px;
    height: 26px;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round
}

.svc h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 5px;
    letter-spacing: -.2px
}

.svc p {
    font-size: 14.5px;
    color: var(--ink-3);
    line-height: 1.8
}

.svc .arrow {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--line);
    display: grid;
    place-items: center;
    color: var(--ink-3);
    transition: .3s;
}

.svc:hover .arrow {
    background: var(--brand);
    border-color: var(--brand);
    color: #fff;
    transform: translateX(3px)
}

.svc .arrow svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2.2;
    stroke-linecap: round;
    stroke-linejoin: round
}

/* ---------- 标杆案例 ---------- */
.cases-band {
    background: var(--bg-soft);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line)
}

.cases {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px
}

.case {
    position: relative;
    overflow: hidden;
    color: #fff !important;
    border-radius: 22px;
    padding: 38px 38px 34px;
    background: linear-gradient(120deg,#0e2f8f 0%,#1a56ff 60%,#00a8b5 130%);
    display: flex;
    flex-direction: column;
    box-shadow: 0 18px 46px rgba(17,26,43,.14);
    transition: .32s;
}

    .case:hover {
        transform: translateY(-5px);
        box-shadow: 0 26px 60px rgba(17,26,43,.2)
    }

    .case.alt {
        background: linear-gradient(120deg,#0b3f45 0%,#00a8b5 60%,#16a34a 130%)
    }

    .case::before {
        content: "";
        position: absolute;
        width: 420px;
        height: 420px;
        border-radius: 50%;
        background: rgba(255,255,255,.08);
        right: -170px;
        top: -220px;
        pointer-events: none;
    }

    .case > * {
        position: relative;
        z-index: 1
    }

    .case .badge {
        display: inline-block;
        align-self: flex-start;
        background: rgba(255,255,255,.16);
        border: 1px solid rgba(255,255,255,.3);
        font-size: 12px;
        font-weight: 700;
        letter-spacing: 2px;
        padding: 5px 12px;
        border-radius: 6px;
        margin-bottom: 16px;
    }

    .case h3 {
        font-size: 23px;
        font-weight: 800;
        color: #fff !important;
        letter-spacing: -.3px;
        margin-bottom: 12px
    }

    .case p {
        font-size: 14.5px;
        opacity: .9;
        line-height: 1.85;
        margin-bottom: 22px
    }

    .case .metrics {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 12px;
        margin-bottom: 24px
    }

        .case .metrics div {
            background: rgba(255,255,255,.13);
            border: 1px solid rgba(255,255,255,.18);
            border-radius: 12px;
            padding: 12px 14px;
        }

        .case .metrics b {
            display: block;
            font-size: 21px;
            font-weight: 800;
            letter-spacing: -.3px;
            line-height: 1.3
        }

        .case .metrics span {
            font-size: 12.5px;
            opacity: .85
        }

    .case .go {
        margin-top: auto;
        display: inline-flex;
        align-items: center;
        gap: 9px;
        align-self: flex-start;
        background: rgba(255,255,255,.16);
        border: 1px solid rgba(255,255,255,.32);
        padding: 10px 20px;
        border-radius: 99px;
        font-size: 14px;
        font-weight: 600;
        transition: .25s;
    }

        .case .go:hover {
            background: #fff;
            color: var(--brand);
            border-color: #fff
        }

        .case .go svg {
            width: 15px;
            height: 15px;
            stroke: currentColor;
            fill: none;
            stroke-width: 2.2;
            stroke-linecap: round;
            stroke-linejoin: round
        }

/* ---------- 交付流程 ---------- */
.steps {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 20px
}

.step {
    position: relative;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 28px 24px;
    transition: .3s;
}

    .step:hover {
        border-color: transparent;
        box-shadow: var(--shadow);
        transform: translateY(-4px)
    }

    .step::after {
        content: "";
        position: absolute;
        right: -20px;
        top: 40px;
        width: 20px;
        border-top: 2px dashed #d5dded;
    }

    .step:last-child::after {
        display: none
    }

    .step .num {
        width: 46px;
        height: 46px;
        border-radius: 13px;
        display: grid;
        place-items: center;
        background: linear-gradient(135deg,var(--brand),var(--cyan));
        color: #fff;
        font-size: 16px;
        font-weight: 800;
        margin-bottom: 18px;
        box-shadow: 0 8px 20px rgba(26,86,255,.24);
    }

    .step h4 {
        font-size: 17px;
        font-weight: 700;
        margin-bottom: 8px
    }

    .step p {
        font-size: 14px;
        color: var(--ink-3);
        line-height: 1.8
    }

/* ---------- 客户 ---------- */
.clients {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 34px;
    box-shadow: var(--shadow-sm);
    text-align: center;
}

    .clients img {
        max-width: 100%;
        height: auto;
        display: block;
        margin: 0 auto
    }

/* ---------- CTA ---------- */
.cta {
    position: relative;
    overflow: hidden;
    border-radius: 26px;
    padding: 62px 56px;
    color: #fff;
    background: linear-gradient(120deg,#0b1224 0%,#111a2b 45%,#123a86 130%);
}

    .cta::before {
        content: "";
        position: absolute;
        width: 520px;
        height: 520px;
        border-radius: 50%;
        background: radial-gradient(circle,rgba(26,86,255,.5),transparent 66%);
        right: -160px;
        top: -220px;
        pointer-events: none;
    }

    .cta::after {
        content: "";
        position: absolute;
        width: 320px;
        height: 320px;
        border-radius: 50%;
        background: radial-gradient(circle,rgba(0,168,181,.42),transparent 68%);
        left: -120px;
        bottom: -180px;
        pointer-events: none;
    }

.cta-inner {
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 40px;
    flex-wrap: wrap
}

.cta h2 {
    font-size: clamp(24px,3vw,34px);
    font-weight: 800;
    margin-bottom: 14px;
    letter-spacing: -.3px
}

.cta p {
    opacity: .85;
    font-size: 15.5px;
    line-height: 2;
    max-width: 620px
}

.btn-white {
    background: #fff;
    color: var(--ink);
    padding: 15px 34px;
    border-radius: 99px;
    font-weight: 700;
    font-size: 15px;
    display: inline-block;
    transition: .25s;
    white-space: nowrap;
}

    .btn-white:hover {
        transform: translateY(-2px);
        box-shadow: 0 14px 34px rgba(0,0,0,.28)
    }

.contact-items {
    position: relative;
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 22px;
    margin-top: 40px;
    padding-top: 32px;
    border-top: 1px solid rgba(255,255,255,.16);
}

    .contact-items .ci span {
        display: block;
        font-size: 12px;
        letter-spacing: 2px;
        opacity: .65;
        margin-bottom: 6px
    }

    .contact-items .ci b {
        font-size: 16px;
        font-weight: 600
    }



/* ---------- 动画 ---------- */
.reveal {
    opacity: 0;
    transform: translateY(26px);
    transition: opacity .7s ease,transform .7s cubic-bezier(.22,.8,.3,1)
}

    .reveal.in {
        opacity: 1;
        transform: none
    }

/* ---------- 响应式 ---------- */
@media(max-width:1000px) {
    .svc-layout {
        grid-template-columns: 1fr;
        gap: 26px
    }

    .svc-nav {
        position: static;
        flex-direction: row;
        flex-wrap: wrap;
        gap: 8px
    }

        .svc-nav .nl {
            display: none
        }

        .svc-nav button {
            width: auto;
            border-left: none;
            border: 1px solid var(--line);
            border-radius: 99px;
            padding: 8px 16px;
            font-size: 14px;
        }

            .svc-nav button.on {
                border-color: var(--brand)
            }

    .cases {
        grid-template-columns: 1fr
    }

    .steps {
        grid-template-columns: repeat(2,1fr);
        gap: 20px 24px
    }

    .step::after {
        display: none
    }

    .foot-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px
    }

    .cta {
        padding: 48px 32px
    }
}

@media(max-width:720px) {
    .menu {
        display: none
    }

    section {
        padding: 68px 0
    }

    .svc {
        grid-template-columns: 54px 1fr;
        gap: 4px 16px;
        padding: 20px
    }

        .svc .idx, .svc .arrow {
            display: none
        }

    .steps {
        grid-template-columns: 1fr
    }

    .stat {
        min-width: 50%;
        border-bottom: 1px solid var(--line)
    }

    .contact-items {
        grid-template-columns: 1fr;
        gap: 18px
    }

    .foot-grid {
        grid-template-columns: 1fr
    }
}