*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0
}

html {
    scroll-behavior: smooth
}

body {
    font-family: 'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
    color: #1a1a2e;
    background: #fff;
    line-height: 1.7
}

a {
    text-decoration: none;
    color: inherit
}

img {
    display: block;
    max-width: 100%
}

/* ─── 变量 ───────────────────────────── */
:root {
    --blue: #1a6fff;
    --blue-dark: #0047d9;
    --blue-deep: #0d1b3e;
    --cyan: #00c6ff;
    --text: #333;
    --muted: #666;
    --light: #f5f8ff;
    --border: #e0e8f5;
    --grad: linear-gradient(135deg,#1a6fff,#00c6ff);
    --grad-dark: linear-gradient(135deg,#0d1b3e 0%,#0d3075 100%);
}

/* ─── 顶部导航（透明→滚动变白） ─── */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 999;
    height: 80px;
    display: flex;
    align-items: center;
    background: transparent;
    /*border-bottom: 1px solid rgba(255,255,255,.15);*/
    transition: background .35s,border-color .35s;
}

    header.scrolled {
        background: rgba(255,255,255,.97);
        border-bottom: 1px solid var(--border);
        backdrop-filter: blur(10px);
    }

.hd-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

/* 左侧 Logo + 公司名 */
.hd-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer
}

.hd-logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 9px;
    background: var(--grad);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 17px;
    font-style: italic;
    color: #fff;
    letter-spacing: -1px;
    box-shadow: 0 3px 12px rgba(26,111,255,.3);
    flex-shrink: 0;
}

.hd-company-name {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    letter-spacing: .5px;
    white-space: nowrap;
    text-shadow: 0 2px 8px rgba(0,0,0,.3);
    transition: color .35s,text-shadow .35s;
}

header.scrolled .hd-company-name {
    color: var(--blue-deep);
    text-shadow: none;
}

/* 中间导航 — 靠右 */
.hd-nav-right {
    margin-left: auto;
    /*transform: translateX(-50px)*/
}

    .hd-nav-right ul {
        list-style: none;
        display: flex;
        gap: 4px
    }

        /* 导航链接 */
        .hd-nav-right ul li a {
            display: block;
            padding: 7px 16px;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 500;
            color: rgba(255,255,255,.9);
            transition: all .2s;
        }

            .hd-nav-right ul li a:hover, .hd-nav-right ul li a.cur {
                color: #fff;
                background: rgba(255,255,255,.18)
            }

header.scrolled .hd-nav-right ul li a {
    color: #444
}

    header.scrolled .hd-nav-right ul li a:hover, header.scrolled .hd-nav-right ul li a.cur {
        color: var(--blue);
        background: #edf3ff
    }

/* 右侧电话 */
.hd-phone {
    /*display: flex;*/
    display:none;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    white-space: nowrap;
    text-shadow: 0 2px 8px rgba(0,0,0,.3);
    transition: color .35s,text-shadow .35s;
}

header.scrolled .hd-phone {
    color: var(--blue);
    text-shadow: none;
}

.hd-phone .ph-icon {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: rgba(255,255,255,.15);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .35s;
}

header.scrolled .hd-phone .ph-icon {
    background: #edf3ff
}

/* ─── 汉堡菜单按钮 ─── */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 36px;
    height: 36px;
    cursor: pointer;
    gap: 5px;
    margin-left: auto;
    z-index: 1000;
    background: none;
    border: none;
    padding: 0;
}

.hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: all .3s;
}

header.scrolled .hamburger span {
    background: var(--blue-deep);
}

body.mobile-nav-open .hamburger span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

body.mobile-nav-open .hamburger span:nth-child(2) {
    opacity: 0;
}

body.mobile-nav-open .hamburger span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ─── Banner / 轮播 ─────────────────── */
.banner {
    position: relative;
    overflow: hidden;
    height: 100vh
}

.slides {
    display: flex;
    width: 200%;
    height: 100%;
    transition: transform .8s cubic-bezier(.77,0,.18,1)
}

.slide {
    width: 50%;
    height: 100%;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

    /* 两张幻灯片背景（使用图片） */
    .slide:nth-child(1) {
        background: url('/images/slide_01.jpg') center/cover no-repeat
    }

    .slide:nth-child(2) {
        background: url('/images/slide_02.jpg') center/cover no-repeat
    }

/* 幻灯文字 — 居中 */
.slide-body {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 20px 40px 0;
    max-width: 800px;
}

.slide-tag {
    display: inline-block;
    padding: 4px 16px;
    border: 1px solid rgba(0,198,255,.55);
    border-radius: 20px;
    font-size: 12px;
    color: #00c6ff;
    letter-spacing: 1.8px;
    font-weight: 600;
    margin-bottom: 24px;
    background: rgba(0,198,255,.12);
}

.slide-h1 {
    font-size: 50px;
    font-weight: 900;
    color: #fff;
    line-height: 1.18;
    margin-bottom: 18px;
}

    .slide-h1 em {
        font-style: normal;
        color: #00c6ff;
    }

.slide-p {
    font-size: 17px;
    color: #ffffff;
    margin: 0 auto 36px;
    line-height: 1.85;
    white-space: nowrap;
}

/* ─── 艺术感标题 ─── */
.art-title {
    font-size: 56px;
    font-weight: 900;
    letter-spacing: 2px;
    line-height: 1.15;
    text-shadow: 0 4px 30px rgba(0,0,0,.5), 0 0 80px rgba(26,111,255,.35);
    background: linear-gradient(135deg,#ffffff 0%,#c8e3ff 50%,#ffffff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.art-sub {
    font-size: 18px;
    font-weight: 300;
    letter-spacing: 3.5px;
    color: rgba(255,255,255,.9);
    text-shadow: 0 2px 14px rgba(0,0,0,.55);
    margin-top: 14px;
    white-space: nowrap;
}
/* 装饰光条 */
.slide-body .deco-line {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg,transparent,var(--cyan),transparent);
    margin: 18px auto 0;
    border-radius: 2px;
    opacity: .85;
}

/* 轮播图 CTA 按钮 — 右下角定位，小号尺寸 */
.slide-cta {
    position: absolute;
    z-index: 2;
    right: 80px;
    bottom: 40px;
    display: flex;
    gap: 16px;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

    .slide-cta .btn-solid {
        padding: 7px 20px;
        font-size: 12px;
    }

.slide-btns {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap
}

.btn-solid {
    padding: 13px 36px;
    background: var(--grad);
    color: #fff;
    border-radius: 30px;
    font-size: 15px;
    font-weight: 700;
    box-shadow: 0 8px 28px rgba(26,111,255,.4);
    transition: transform .2s,box-shadow .2s;
    cursor: pointer;
    border: none;
}

    .btn-solid:hover {
        transform: translateY(-2px);
        box-shadow: 0 12px 36px rgba(26,111,255,.5)
    }

.btn-ghost {
    padding: 13px 36px;
    background: transparent;
    color: #fff;
    border: 1.5px solid rgba(255,255,255,.4);
    border-radius: 30px;
    font-size: 15px;
    font-weight: 600;
    transition: all .2s;
    cursor: pointer;
}

    .btn-ghost:hover {
        background: rgba(255,255,255,.1);
        border-color: rgba(255,255,255,.7)
    }

/* 幻灯控件 */
.slide-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    cursor: pointer;
    background: rgba(255,255,255,.1);
    border: 1px solid rgba(255,255,255,.2);
    color: #fff;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .2s;
    user-select: none;
}

    .slide-arrow:hover {
        background: rgba(255,255,255,.22)
    }

.arrow-l {
    left: 24px
}

.arrow-r {
    right: 24px
}

.slide-dots {
    position: absolute;
    bottom: 74px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 10;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 4px;
    background: rgba(255,255,255,.4);
    cursor: pointer;
    transition: all .3s
}

    .dot.on {
        width: 28px;
        background: #fff
    }

/* ─── 通用 section 骨架 ─── */
.section {
    padding: 88px 0
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px
}

/* 左右双栏布局 */
.two-col {
    display: flex;
    gap: 60px;
    align-items: flex-start
}

.col-label {
    flex: 0 0 280px;
    position: sticky;
    top: 100px; /* 滚动时标题吸附 */
}

.sec-eyebrow {
    font-size: 12px;
    letter-spacing: 2px;
    font-weight: 700;
    color: var(--blue);
    text-transform: uppercase;
    margin-bottom: 12px;
}

.sec-h2 {
    font-size: 34px;
    font-weight: 800;
    color: var(--blue-deep);
    line-height: 1.3;
    margin-bottom: 16px
}

    .sec-h2 em {
        font-style: normal;
        background: var(--grad);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

.sec-bar {
    width: 44px;
    height: 4px;
    background: var(--grad);
    border-radius: 2px;
    margin-bottom: 18px
}

.sec-desc {
    font-size: 15px;
    color: var(--muted);
    line-height: 1.8;
    margin-bottom: 24px
}

.col-content {
    flex: 1;
    min-width: 0
}

/* ─── 六大能力卡片（3×2） ─── */
.cap-bg {
    background: var(--light)
}

.cap-grid {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 20px
}

.cap-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 28px 24px;
    position: relative;
    overflow: hidden;
    transition: all .28s;
}

    .cap-card::after {
        content: '';
        position: absolute;
        inset: 0;
        background: var(--grad);
        opacity: 0;
        transition: opacity .28s;
        border-radius: 14px;
    }

    .cap-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 16px 48px rgba(26,111,255,.13);
        border-color: transparent
    }

        .cap-card:hover::after {
            opacity: 1
        }

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

    .cap-card:hover .cap-h,
    .cap-card:hover .cap-p {
        color: #fff
    }

    .cap-card:hover .cap-icon {
        background: rgba(255,255,255,.2)
    }

        .cap-card:hover .cap-icon svg path,
        .cap-card:hover .cap-icon svg rect,
        .cap-card:hover .cap-icon svg circle,
        .cap-card:hover .cap-icon svg polyline,
        .cap-card:hover .cap-icon svg line {
            stroke: #fff
        }

.cap-num {
    display: inline-block;
    padding: 5px 14px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1px;
    color: #fff;
    background: var(--grad);
    box-shadow: 0 4px 16px rgba(26,111,255,.28);
    margin-bottom: 14px;
    transition: all .28s;
}

.cap-card:hover .cap-num {
    box-shadow: 0 6px 24px rgba(26,111,255,.45);
    transform: translateY(-2px);
}

.cap-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: #edf3ff;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    transition: all .28s;
}

    .cap-icon svg {
        width: 24px;
        height: 24px
    }

.cap-h {
    font-size: 16px;
    font-weight: 700;
    color: var(--blue-deep);
    margin-bottom: 10px;
    transition: color .28s
}

.cap-p {
    font-size: 13px;
    color: var(--muted);
    line-height: 1.75;
    transition: color .28s
}

/* ─── 数字统计条 ─── */
.stats {
    background: var(--blue-deep);
    padding: 52px 0
}

.stats-row {
    display: grid;
    grid-template-columns: repeat(4,1fr)
}

.stat {
    text-align: center;
    padding: 20px 16px;
    position: relative;
    border-right: 1px solid rgba(255,255,255,.12);
}

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

.stat-n {
    font-size: 46px;
    font-weight: 900;
    color: #fff;
    line-height: 1;
    margin-bottom: 8px
}

    .stat-n sup {
        font-size: 22px;
        font-weight: 700;
        vertical-align: super
    }

.stat-l {
    font-size: 13px;
    color: rgba(255,255,255,.65);
    letter-spacing: .5px
}

/* ─── 主营业务（4 列卡片） ─── */
.biz-section {
    background: #fff
}

.biz-grid {
    display: grid;
    grid-template-columns: repeat(4,1fr);
    gap: 24px
}

.biz-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 36px 24px;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: all .3s;
}

    .biz-card::before {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        height: 3px;
        background: var(--grad);
        transform: scaleX(0);
        transition: transform .3s;
        transform-origin: center;
    }

    .biz-card:hover {
        transform: translateY(-7px);
        box-shadow: 0 20px 52px rgba(26,111,255,.11);
        border-color: var(--blue)
    }

        .biz-card:hover::before {
            transform: scaleX(1)
        }

.biz-icon-wrap {
    width: 68px;
    height: 68px;
    border-radius: 50%;
    background: #edf3ff;
    margin: 0 auto 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all .3s;
}

.biz-card:hover .biz-icon-wrap {
    background: var(--grad);
    box-shadow: 0 8px 28px rgba(26,111,255,.3)
}

.biz-icon-wrap svg {
    width: 32px;
    height: 32px
}

.biz-card:hover .biz-icon-wrap svg path,
.biz-card:hover .biz-icon-wrap svg rect,
.biz-card:hover .biz-icon-wrap svg circle,
.biz-card:hover .biz-icon-wrap svg polyline {
    stroke: #fff
}

.biz-sub {
    font-size: 11px;
    letter-spacing: 1.5px;
    color: var(--blue);
    font-weight: 700;
    margin-bottom: 8px;
    text-transform: uppercase
}

.biz-h {
    font-size: 17px;
    font-weight: 800;
    color: var(--blue-deep);
    margin-bottom: 12px
}

.biz-p {
    font-size: 13px;
    color: var(--muted);
    line-height: 1.8
}

/* ─── 页脚 ─── */
footer {
    background: var(--grad-dark);
    color: rgba(255,255,255,.8);
    padding: 60px 0 0
}

.ft-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,.1);
}

.ft-brand .logo-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px
}

.ft-brand .logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 9px;
    background: var(--grad);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 17px;
    font-style: italic;
    color: #fff;
    letter-spacing: -1px;
}

.ft-brand .logo-name b {
    display: block;
    font-size: 15px;
    font-weight: 800;
    color: #fff
}

.ft-brand .logo-name span {
    font-size: 11px;
    color: rgba(255,255,255,.45);
    letter-spacing: .8px
}

.ft-tagline {
    font-size: 14px;
    color: rgba(255,255,255,.6);
    line-height: 1.7;
    margin-bottom: 20px
}

/* 页尾品牌区联系信息（精简版） */
.ft-contact-compact {
    display: flex;
    flex-direction: column;
    gap: 10px
}

.ft-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    color: rgba(255,255,255,.55)
}

    .ft-contact-item svg {
        flex-shrink: 0;
        margin-top: 2px;
        opacity: .55
    }

    .ft-contact-item .ft-label {
        display: block;
        font-size: 11px;
        color: rgba(255,255,255,.4);
        margin-bottom: 1px
    }

    .ft-contact-item .ft-value {
        font-size: 13px;
        color: rgba(255,255,255,.85);
        font-weight: 500
    }

.ft-col h4 {
    font-size: 14px;
    font-weight: 700;
    color: #fff;
    padding-bottom: 12px;
    margin-bottom: 18px;
    border-bottom: 1px solid rgba(255,255,255,.1);
}

.ft-col ul {
    list-style: none;
    margin-bottom: 18px
}

    .ft-col ul li {
        margin-bottom: 10px
    }

        .ft-col ul li a {
            font-size: 13px;
            color: rgba(255,255,255,.55);
            transition: color .2s
        }

            .ft-col ul li a:hover {
                color: #fff
            }

/* 社交媒体图标 */
.ft-brand-slogan {
    font-size: 14px;
    color: rgba(255,255,255,.55);
    line-height: 1.8;
    margin: 16px 0;
    text-align: left;
    margin-left:60px;
}

.ft-qrcode {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 12px
}

    .ft-qrcode img {
        display: block;
        margin-bottom: 8px
    }

.ft-qrcode-label {
    font-size: 12px;
    color: rgba(255,255,255,.5);
    letter-spacing: .5px
}

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

.ft-contact-row {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 13px;
    color: rgba(255,255,255,.6);
    line-height: 1.5
}

    .ft-contact-row svg {
        flex-shrink: 0;
        margin-top: 4px;
        opacity: .5
    }

.ft-social-icons {
    display: flex;
    gap: 10px
}

    .ft-social-icons a {
        width: 34px;
        height: 34px;
        border-radius: 8px;
        background: rgba(255,255,255,.08);
        display: flex;
        align-items: center;
        justify-content: center;
        color: rgba(255,255,255,.5);
        transition: all .2s;
    }

        .ft-social-icons a:hover {
            background: rgba(255,255,255,.18);
            color: #fff
        }

.ft-bottom {
    padding: 18px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: rgba(255,255,255,.35);
}

/* ─── 响应式 ─── */
@media(max-width:1024px) {
    .two-col {
        flex-direction: column
    }

    .col-label {
        flex: none;
        position: static
    }

    .cap-grid {
        grid-template-columns: repeat(2,1fr)
    }

    .biz-grid {
        grid-template-columns: repeat(2,1fr)
    }

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

@media(max-width:768px) {
    .hamburger {
        display: flex;
    }

    .hd-nav-right ul {
        display: none !important;
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: rgba(255,255,255,.98);
        backdrop-filter: blur(12px);
        flex-direction: column;
        padding: 12px 20px 20px;
        box-shadow: 0 12px 40px rgba(0,0,0,.12);
        z-index: 999;
        gap: 2px;
    }

    body.mobile-nav-open .hd-nav-right ul {
        display: flex !important;
    }

    .hd-nav-right ul li a {
        padding: 12px 16px;
        font-size: 15px;
        color: #333 !important;
        border-radius: 8px;
    }

    .hd-nav-right ul li a:hover,
    .hd-nav-right ul li a.cur {
        background: #edf3ff !important;
        color: var(--blue) !important;
    }

    .slide-h1 {
        font-size: 30px
    }

    .slide-cta {
        right: 50%;
        bottom: 30px;
        transform: translateX(50%);
    }

    .banner {
        height: 460px
    }

    .art-title {
        font-size: 36px;
    }

    .art-sub {
        font-size: 14px;
        letter-spacing: 2px;
    }

    .cap-grid, .biz-grid {
        grid-template-columns: 1fr
    }

    .stats-row {
        grid-template-columns: repeat(2,1fr)
    }

    .stat-n {
        font-size: 36px;
    }

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

    .ft-brand-slogan {
        margin-left: 0;
        text-align: center;
    }

    .ft-brand .logo-row {
        justify-content: center;
    }

    .ft-bottom {
        flex-direction: column;
        text-align: center;
        gap: 8px;
    }

    .section {
        padding: 60px 0
    }

    .container {
        padding: 0 20px;
    }

    .sec-h2 {
        font-size: 28px;
    }

    .slide-cta .btn-solid {
        padding: 6px 16px;
        font-size: 11px;
    }

    .hd-company-name {
        font-size: 17px;
    }
}

@media(max-width:480px) {
    .banner {
        height: 360px;
    }

    .slide-h1 {
        font-size: 24px;
    }

    .art-title {
        font-size: 28px;
    }

    .art-sub {
        font-size: 12px;
        letter-spacing: 1.5px;
    }

    .hd-company-name {
        font-size: 15px;
    }

    .hd-inner {
        padding: 0 16px;
    }

    .container {
        padding: 0 16px;
    }

    .section {
        padding: 44px 0;
    }

    .sec-h2 {
        font-size: 24px;
    }

    .stat-n {
        font-size: 28px;
    }

    .cap-grid, .biz-grid {
        gap: 14px;
    }

    .cap-card {
        padding: 22px 18px;
    }

    .biz-card {
        padding: 28px 18px;
    }

    .slide-cta {
        right: 50%;
        bottom: 20px;
        transform: translateX(50%);
    }

    .slide-cta .btn-solid {
        padding: 5px 14px;
        font-size: 10px;
    }

    .slide-dots {
        bottom: 50px;
    }
}