/* ============================================================
   晟砚网络 · 精致科技风设计系统  v3.0
   ============================================================ */

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-deep: #0b1e3f;
    --accent: #7c3aed;
    --cyan: #06b6d4;
    --gradient: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    --gradient-soft: linear-gradient(135deg, #eff4ff 0%, #f3efff 100%);
    --ink: #0f172a;
    --ink-2: #1e293b;
    --gray: #64748b;
    --gray-light: #94a3b8;
    --bg: #ffffff;
    --bg-soft: #f6f8fc;
    --bg-deep: #0b1226;
    --line: #e8edf5;
    --radius: 16px;
    --radius-lg: 22px;
    --shadow-xs: 0 1px 2px rgba(15,23,42,.04);
    --shadow-sm: 0 2px 10px rgba(15,23,42,.05);
    --shadow-md: 0 10px 30px -8px rgba(15,23,42,.12);
    --shadow-lg: 0 24px 50px -16px rgba(15,23,42,.22);
    --shadow-blue: 0 14px 34px -10px rgba(37,99,235,.45);
    --ease: cubic-bezier(.22,.61,.36,1);
}

* { box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: var(--ink-2);
    background: var(--bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

.wrap { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
a { text-decoration: none; transition: all .25s var(--ease); }
img { max-width: 100%; }

/* ============ 顶部导航 ============ */
.site-nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(255,255,255,.82);
    backdrop-filter: saturate(180%) blur(16px);
    -webkit-backdrop-filter: saturate(180%) blur(16px);
    border-bottom: 1px solid rgba(15,23,42,.06);
    transition: box-shadow .3s var(--ease), background .3s var(--ease);
}
.site-nav.scrolled { box-shadow: 0 6px 24px -12px rgba(15,23,42,.18); }
.nav-inner {
    max-width: 1240px; margin: 0 auto; padding: 0 24px;
    height: 70px; display: flex; align-items: center; justify-content: space-between;
}
.nav-logo { display: flex; align-items: center; }
.nav-logo img { height: 46px; width: auto; display: block; }
.nav-menu { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav-menu > li > a {
    display: block; padding: 9px 15px; font-size: 15px; font-weight: 500;
    color: var(--ink-2); border-radius: 8px; position: relative;
}
.nav-menu > li > a:hover { color: var(--primary); background: rgba(37,99,235,.06); }
.nav-menu > li.active > a { color: var(--primary); }
.nav-menu > li.active > a::after {
    content: ''; position: absolute; left: 15px; right: 15px; bottom: 2px;
    height: 2px; border-radius: 2px; background: var(--gradient);
}
.nav-cta {
    margin-left: 12px; padding: 9px 20px !important;
    background: var(--gradient); color: #fff !important; border-radius: 999px !important;
    font-weight: 600 !important; box-shadow: var(--shadow-blue);
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 16px 38px -10px rgba(37,99,235,.6); background: var(--gradient); }
.nav-toggle {
    display: none; background: none; border: none; font-size: 24px; color: var(--ink); cursor: pointer;
}
.nav-placeholder { height: 70px; }

/* ============ 按钮 ============ */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 13px 28px; border-radius: 10px; font-size: 15px; font-weight: 600;
    border: 1px solid transparent; cursor: pointer; line-height: 1.2;
    transition: all .28s var(--ease); white-space: nowrap;
}
.btn i { font-size: 15px; }
.btn-gradient { background: var(--gradient); color: #fff; box-shadow: var(--shadow-blue); }
.btn-gradient:hover { transform: translateY(-2px); box-shadow: 0 18px 40px -10px rgba(37,99,235,.6); color:#fff; }
.btn-light { background: rgba(255,255,255,.12); color: #fff; border-color: rgba(255,255,255,.35); }
.btn-light:hover { background: rgba(255,255,255,.22); color:#fff; border-color: rgba(255,255,255,.6); }
.btn-ghost { background: #fff; color: var(--primary); border-color: #cdd9f5; }
.btn-ghost:hover { border-color: var(--primary); background: #f5f8ff; color: var(--primary-dark); }
.btn-dark { background: var(--ink); color: #fff; }
.btn-dark:hover { background: var(--primary-deep); transform: translateY(-2px); color:#fff; }
.btn-lg { padding: 16px 38px; font-size: 16px; border-radius: 12px; }
.btn-sm { padding: 9px 18px; font-size: 14px; }
.btn-block { width: 100%; }

/* ============ Hero ============ */
.hero {
    position: relative; background: radial-gradient(1200px 600px at 75% -10%, #1d3a8a 0%, transparent 60%),
        radial-gradient(900px 500px at 10% 110%, rgba(124,58,237,.35) 0%, transparent 55%),
        linear-gradient(150deg, #0a1733 0%, #0d2252 55%, #102a6b 100%);
    color: #fff; overflow: hidden; padding: 96px 0 88px;
}
.hero::before {
    content: ''; position: absolute; inset: 0;
    background-image: linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
    background-size: 52px 52px;
    mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 30%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, #000 30%, transparent 75%);
}
.hero-inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px; padding: 7px 16px;
    background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16);
    border-radius: 999px; font-size: 13px; color: #cdd9ff; margin-bottom: 26px;
}
.hero-badge .dot-live { width: 7px; height: 7px; border-radius: 50%; background: #34d399; box-shadow: 0 0 0 4px rgba(52,211,153,.2); }
.hero h1 { font-size: 50px; line-height: 1.18; font-weight: 800; margin: 0 0 22px; letter-spacing: -.5px; }
.hero h1 .grad {
    background: linear-gradient(100deg, #6ea8ff 0%, #a78bfa 60%, #22d3ee 100%);
    -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero p.lead { font-size: 18px; line-height: 1.85; color: #b9c7e8; margin: 0 0 36px; max-width: 520px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }
.hero-stats { display: flex; gap: 44px; }
.hero-stats .num { font-size: 34px; font-weight: 800; line-height: 1; background: linear-gradient(180deg,#fff,#9fc0ff); -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent; }
.hero-stats .lab { font-size: 13.5px; color: #93a6d0; margin-top: 8px; }
.hero-stats .div { width: 1px; background: rgba(255,255,255,.14); }

/* 代码窗口 */
.code-card {
    background: rgba(10,18,40,.72); border: 1px solid rgba(255,255,255,.12);
    border-radius: 16px; box-shadow: 0 40px 80px -30px rgba(0,0,0,.7);
    backdrop-filter: blur(8px); overflow: hidden; transform: rotate(.5deg);
}
.code-bar { display: flex; align-items: center; gap: 7px; padding: 14px 18px; background: rgba(0,0,0,.28); border-bottom: 1px solid rgba(255,255,255,.07); }
.code-bar .d { width: 11px; height: 11px; border-radius: 50%; }
.code-bar .r{background:#ff5f57}.code-bar .y{background:#febc2e}.code-bar .g{background:#28c840}
.code-bar .fn { margin-left: auto; font-size: 12px; color: #64748b; font-family: Consolas,monospace; }
.code-body { padding: 26px 24px; font-family: Consolas, "Courier New", monospace; font-size: 14px; line-height: 2; color: #cbd5e1; }
.code-body .kw{color:#c084fc}.code-body .vr{color:#7dd3fc}.code-body .st{color:#86efac}.code-body .cm{color:#64748b}.code-body .fn2{color:#fcd34d}

/* ============ 通用区块 ============ */
.section { padding: 92px 0; }
.section.soft { background: var(--bg-soft); }
.section.deep { background: var(--bg-deep); color: #fff; }
.s-head { text-align: center; max-width: 680px; margin: 0 auto 58px; }
.s-tag {
    display: inline-block; font-size: 12.5px; font-weight: 700; letter-spacing: 2.5px;
    color: var(--primary); background: rgba(37,99,235,.09); padding: 6px 14px; border-radius: 999px; margin-bottom: 18px;
}
.section.deep .s-tag { color: #93b4ff; background: rgba(147,180,255,.12); }
.s-title { font-size: 36px; font-weight: 800; color: var(--ink); margin: 0 0 16px; letter-spacing: -.3px; }
.section.deep .s-title { color: #fff; }
.s-desc { font-size: 16.5px; color: var(--gray); margin: 0; line-height: 1.8; }
.section.deep .s-desc { color: #9fb0d4; }

/* ============ 服务卡片 ============ */
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 26px; }
.grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: 28px; }
.svc-card {
    background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
    padding: 34px 30px; transition: all .32s var(--ease); position: relative; overflow: hidden;
}
.svc-card::after {
    content:''; position:absolute; inset:0 0 auto 0; height:3px; background:var(--gradient);
    transform: scaleX(0); transform-origin:left; transition: transform .35s var(--ease);
}
.svc-card:hover { transform: translateY(-7px); box-shadow: var(--shadow-lg); border-color: transparent; }
.svc-card:hover::after { transform: scaleX(1); }
.svc-ico {
    width: 58px; height: 58px; border-radius: 15px; display: flex; align-items: center; justify-content: center;
    font-size: 24px; color: #fff; background: var(--gradient); box-shadow: 0 10px 22px -8px rgba(37,99,235,.5); margin-bottom: 22px;
}
.svc-card h3 { font-size: 19.5px; font-weight: 700; color: var(--ink); margin: 0 0 12px; }
.svc-card p { font-size: 14.5px; color: var(--gray); line-height: 1.75; margin: 0 0 18px; }
.svc-list { list-style: none; padding: 0; margin: 0; }
.svc-list li { font-size: 14px; color: var(--ink-2); padding: 5px 0; display: flex; align-items: center; gap: 9px; }
.svc-list li i { color: var(--primary); font-size: 12px; }

/* ============ 痛点/解决方案 ============ */
.pain-col {
    background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 34px 30px;
    transition: all .3s var(--ease);
}
.pain-col:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.pain-head { display: flex; align-items: center; gap: 14px; margin-bottom: 22px; }
.pain-ava { width: 50px; height: 50px; border-radius: 13px; display:flex; align-items:center; justify-content:center; font-size:22px; color:#fff; }
.pain-head h3 { margin: 0; font-size: 19px; color: var(--ink); }
.pain-head span { font-size: 13px; color: var(--gray-light); }
.pain-item { padding: 13px 0; border-bottom: 1px dashed var(--line); }
.pain-item:last-child { border-bottom: none; }
.pain-item .q { font-size: 14px; color: #b91c1c; display:flex; gap:8px; margin-bottom:5px; }
.pain-item .a { font-size: 14px; color: #15803d; display:flex; gap:8px; }
.pain-item i { margin-top:3px; }

/* ============ 产品卡片 ============ */
.prod-card {
    background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
    overflow: hidden; transition: all .32s var(--ease); display: flex; flex-direction: column;
}
.prod-card:hover { transform: translateY(-7px); box-shadow: var(--shadow-lg); border-color: transparent; }
.prod-thumb {
    height: 150px; display: flex; align-items: center; justify-content: center; font-size: 46px; color:#fff;
    background: var(--gradient-soft); position: relative; overflow: hidden;
}
.prod-thumb i { background: var(--gradient); width: 84px; height: 84px; border-radius: 22px; display:flex; align-items:center; justify-content:center; box-shadow: var(--shadow-blue); }
.prod-thumb img { width:100%; height:100%; object-fit: cover; }
.prod-tag { position: absolute; top: 12px; left: 12px; background: rgba(11,30,63,.82); color:#fff; font-size:12px; padding:4px 11px; border-radius:999px; }
.prod-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.prod-body h3 { font-size: 17.5px; font-weight: 700; margin: 0 0 10px; }
.prod-body h3 a { color: var(--ink); }
.prod-body h3 a:hover { color: var(--primary); }
.prod-body p { font-size: 13.5px; color: var(--gray); line-height: 1.7; margin: 0 0 20px; flex: 1; }
.prod-foot { display: flex; align-items: center; justify-content: space-between; padding-top: 16px; border-top: 1px solid var(--line); }
.prod-price { font-size: 22px; font-weight: 800; color: #e11d48; }
.prod-price small { font-size: 12px; font-weight: 500; color: var(--gray-light); }
.prod-price.free { color: #16a34a; }

/* ============ 优势 ============ */
.adv-grid { display:grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
.adv-item { text-align: center; padding: 30px 20px; border-radius: var(--radius); background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.08); transition: all .3s var(--ease); }
.adv-item:hover { background: rgba(255,255,255,.07); transform: translateY(-5px); border-color: rgba(147,180,255,.3); }
.adv-ico { width: 56px; height: 56px; margin: 0 auto 18px; border-radius: 15px; background: rgba(147,180,255,.12); display:flex; align-items:center; justify-content:center; font-size:23px; color:#93b4ff; }
.adv-item h3 { font-size: 17px; color:#fff; margin: 0 0 9px; }
.adv-item p { font-size: 13.5px; color: #93a6d0; line-height: 1.7; margin: 0; }

/* ============ 定价 ============ */
.price-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 28px; align-items: stretch; }
.price-card {
    background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg);
    padding: 40px 34px; display: flex; flex-direction: column; position: relative; transition: all .32s var(--ease);
}
.price-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.price-card.hot { border: 2px solid var(--primary); box-shadow: var(--shadow-md); }
.price-card.hot:hover { box-shadow: var(--shadow-lg); }
.hot-flag { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); background: var(--gradient); color:#fff; font-size:12.5px; font-weight:700; padding: 5px 18px; border-radius:999px; box-shadow: var(--shadow-blue); white-space: nowrap; }
.price-name { text-align:center; font-size: 19px; font-weight: 700; color: var(--ink); margin-bottom: 18px; }
.price-num { text-align:center; margin-bottom: 28px; }
.price-num .cur { font-size: 22px; font-weight: 700; color: var(--ink); vertical-align: top; }
.price-num .amt { font-size: 50px; font-weight: 800; color: var(--ink); line-height: 1; letter-spacing:-1px; }
.price-num .per { font-size: 14px; color: var(--gray-light); }
.price-feat { list-style: none; padding: 0; margin: 0 0 30px; flex:1; }
.price-feat li { padding: 10px 0; font-size: 14.5px; color: var(--ink-2); display:flex; gap:10px; border-bottom: 1px solid var(--bg-soft); }
.price-feat li i { color: var(--primary); margin-top:5px; }
.price-feat li.off { color: var(--gray-light); }
.price-feat li.off i { color: #cbd5e1; }

/* ============ 流程时间线 ============ */
.flow { display: grid; grid-template-columns: repeat(4,1fr); gap: 22px; position: relative; }
.flow-step { background:#fff; border:1px solid var(--line); border-radius: var(--radius); padding: 30px 24px; text-align:center; position:relative; transition: all .3s var(--ease); }
.flow-step:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: transparent; }
.flow-num { width: 46px; height: 46px; margin: 0 auto 16px; border-radius: 50%; background: var(--gradient); color:#fff; font-weight:800; font-size:19px; display:flex; align-items:center; justify-content:center; box-shadow: var(--shadow-blue); }
.flow-step h3 { font-size: 17px; color: var(--ink); margin: 0 0 8px; }
.flow-step p { font-size: 13.5px; color: var(--gray); margin:0; line-height:1.7; }

/* ============ 内页 Banner ============ */
.page-hero {
    position: relative; padding: 88px 0 70px; color:#fff; text-align:center;
    background: radial-gradient(900px 420px at 80% -20%, #1d3a8a 0%, transparent 60%),
        radial-gradient(700px 400px at 10% 120%, rgba(124,58,237,.3) 0%, transparent 55%),
        linear-gradient(150deg,#0a1733 0%,#0d2252 60%,#102a6b 100%);
    overflow:hidden;
}
.page-hero::before {
    content:''; position:absolute; inset:0;
    background-image: linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px), linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse 70% 80% at 50% 20%, #000, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse 70% 80% at 50% 20%, #000, transparent 75%);
}
.page-hero .wrap { position:relative; z-index:2; }
.page-hero h1 { font-size: 40px; font-weight: 800; margin: 0 0 14px; letter-spacing:-.3px; }
.page-hero p { font-size: 17px; color: #b9c7e8; margin: 0; }
.crumb { margin-top: 22px; font-size: 13.5px; color: #8ea3cf; }
.crumb a { color: #b9c7e8; }
.crumb a:hover { color:#fff; }

/* ============ 筛选条 ============ */
.filter-bar { display:flex; flex-wrap:wrap; align-items:center; gap:12px; background:#fff; border:1px solid var(--line); border-radius: 14px; padding: 18px 22px; margin-bottom: 36px; box-shadow: var(--shadow-xs); }
.filter-bar .flab { font-size:14px; color:var(--gray); font-weight:600; }
.filter-bar a { padding: 7px 18px; border-radius: 999px; font-size: 14px; color: var(--gray); background: var(--bg-soft); }
.filter-bar a:hover, .filter-bar a.on { background: var(--gradient); color:#fff; }

/* ============ 新闻列表 ============ */
.news-item {
    display:flex; gap: 30px; background:#fff; border:1px solid var(--line); border-radius: var(--radius-lg);
    padding: 30px 32px; margin-bottom: 22px; transition: all .3s var(--ease); align-items:flex-start;
}
.news-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: transparent; }
.news-date { flex-shrink:0; width: 84px; text-align:center; border-right:1px solid var(--line); padding-right: 28px; }
.news-date .d { font-size: 40px; font-weight: 800; color: var(--primary); line-height:1; }
.news-date .ym { font-size: 13px; color: var(--gray-light); margin-top:6px; }
.news-body h3 { margin: 0 0 12px; font-size: 20px; }
.news-body h3 a { color: var(--ink); }
.news-body h3 a:hover { color: var(--primary); }
.news-body p { font-size: 14.5px; color: var(--gray); line-height:1.8; margin:0 0 14px; }
.more-link { display:inline-flex; align-items:center; gap:7px; color: var(--primary); font-size:14px; font-weight:600; }
.more-link i { transition: transform .25s var(--ease); }
.more-link:hover i { transform: translateX(4px); }

/* ============ 案例卡片 ============ */
.case-card { background:#fff; border:1px solid var(--line); border-radius: var(--radius-lg); padding: 32px 30px; transition: all .3s var(--ease); height:100%; display:flex; flex-direction:column; }
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color:transparent; }
.case-ico { width:52px;height:52px;border-radius:14px;background:var(--gradient);color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:20px;box-shadow:var(--shadow-blue); }
.case-card h3 { font-size:18px; margin:0 0 12px; }
.case-card h3 a { color: var(--ink); }
.case-card h3 a:hover { color: var(--primary); }
.case-card p { font-size:14px; color:var(--gray); line-height:1.75; margin:0 0 20px; flex:1; }

/* ============ 文章正文 ============ */
.article { background:#fff; border:1px solid var(--line); border-radius: var(--radius-lg); padding: 48px 52px; }
.article h1 { font-size: 30px; color:var(--ink); margin:0 0 18px; }
.article-meta { font-size:13.5px; color:var(--gray-light); padding-bottom:22px; border-bottom:1px solid var(--line); margin-bottom:30px; display:flex; gap:22px; flex-wrap:wrap; }
.article .content { font-size:16px; line-height:1.95; color: var(--ink-2); }
.article .content p { margin-bottom:18px; }
.article .content h2 { font-size:23px; margin:34px 0 16px; color:var(--ink); }
.article .content h3 { font-size:19px; margin:26px 0 12px; color:var(--ink); }
.article .content img { border-radius:12px; margin:18px 0; }
.pager-links { margin-top:36px; padding-top:24px; border-top:1px solid var(--line); font-size:14.5px; color:var(--gray); display:grid; gap:10px; }
.pager-links a { color: var(--ink-2); }
.pager-links a:hover { color: var(--primary); }

/* ============ 分页 ============ */
.pagination { display:flex; justify-content:center; gap:8px; margin-top: 44px; flex-wrap:wrap; }
.pagination a, .pagination span {
    min-width: 42px; height:42px; padding:0 12px; display:inline-flex; align-items:center; justify-content:center;
    border:1px solid var(--line); border-radius:10px; font-size:14px; color:var(--gray); background:#fff;
}
.pagination a:hover { border-color:var(--primary); color:var(--primary); }
.pagination .current { background: var(--gradient); color:#fff; border-color:transparent; }

/* ============ 关于页 ============ */
.about-grid { display:grid; grid-template-columns: 1.1fr .9fr; gap:56px; align-items:center; }
.about-text p { font-size:16px; color:var(--gray); line-height:2; margin-bottom:18px; }
.about-quick { display:grid; grid-template-columns: repeat(2,1fr); gap:16px; margin-top:28px; }
.about-quick .q { background:var(--gradient-soft); border-radius:14px; padding:20px; }
.about-quick .q b { font-size:26px; color:var(--primary); display:block; }
.about-quick .q span { font-size:13.5px; color:var(--gray); }
.about-visual { background: var(--gradient); border-radius: var(--radius-lg); padding: 44px; color:#fff; box-shadow: var(--shadow-lg); }
.about-visual h3 { font-size:22px; margin:0 0 24px; }
.about-visual .av-item { display:flex; gap:14px; margin-bottom:22px; align-items:flex-start; }
.about-visual .av-item i { font-size:20px; margin-top:3px; }
.about-visual .av-item b { display:block; font-size:16px; margin-bottom:3px; }
.about-visual .av-item span { font-size:13.5px; color:#d6e0ff; line-height:1.6; }

/* ============ 联系 ============ */
.contact-grid { display:grid; grid-template-columns: repeat(3,1fr); gap:24px; }
.contact-card { background:#fff; border:1px solid var(--line); border-radius:var(--radius-lg); padding:36px 30px; text-align:center; transition:all .3s var(--ease); }
.contact-card:hover { transform:translateY(-5px); box-shadow:var(--shadow-md); border-color:transparent; }
.contact-card .ci { width:60px;height:60px;margin:0 auto 18px;border-radius:16px;background:var(--gradient-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:25px; }
.contact-card h3 { font-size:18px; margin:0 0 10px; color:var(--ink); }
.contact-card p { font-size:15px; color:var(--gray); margin:0; word-break:break-all; }

/* ============ CTA ============ */
.cta { position:relative; padding: 84px 0; text-align:center; color:#fff; overflow:hidden;
    background: radial-gradient(800px 400px at 50% 0%, #1d3a8a 0%, transparent 60%), linear-gradient(150deg,#0a1733,#102a6b); }
.cta::before { content:''; position:absolute; inset:0; background-image: linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px); background-size:48px 48px; }
.cta .wrap { position:relative; z-index:2; }
.cta h2 { font-size:36px; font-weight:800; margin:0 0 16px; }
.cta p { font-size:17px; color:#b9c7e8; margin:0 0 34px; }
.cta-actions { display:flex; gap:16px; justify-content:center; flex-wrap:wrap; }

/* ============ 页脚 ============ */
.footer { background:#080f22; color:#93a6d0; padding: 68px 0 0; }
.footer-grid { display:grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap:40px; padding-bottom:48px; }
.footer-brand img { height:46px; margin-bottom:20px; filter: brightness(0) invert(1); opacity:.95; }
.footer-brand p { font-size:14px; line-height:1.9; margin:0 0 20px; max-width:320px; }
.footer h4 { color:#fff; font-size:16px; margin:0 0 20px; font-weight:600; }
.footer ul { list-style:none; padding:0; margin:0; }
.footer ul li { margin-bottom:12px; font-size:14px; }
.footer ul li a { color:#93a6d0; }
.footer ul li a:hover { color:#fff; }
.footer ul li i { width:18px; color:#5d73a6; }
.footer-qr { text-align:center; }
.footer-qr .qrbox { background:#fff; border-radius:12px; padding:10px; width:118px; height:118px; margin:0 auto 10px; display:flex; align-items:center; justify-content:center; }
.footer-qr .qrbox img { width:100%; height:100%; }
.footer-qr span { font-size:12.5px; }
.footer-filing { margin-top:8px; display:flex; align-items:center; gap:7px; flex-wrap:wrap; font-size:13px; }
.footer-filing img { width:15px; height:15px; }
.footer-filing a { color:#93a6d0; }
.footer-filing a:hover { color:#fff; }
.footer-bottom { border-top:1px solid rgba(255,255,255,.07); padding:22px 0; text-align:center; font-size:13px; color:#5d73a6; }
.mobile-bar { display:none; }

/* ============ 入场动画 ============ */
.reveal { opacity:0; transform: translateY(28px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity:1; transform:none; }

/* ============ 表单 ============ */
.form-group { margin-bottom: 20px; }
.form-label { display:block; font-size:14px; font-weight:600; color:var(--ink); margin-bottom:8px; }
.form-control {
    width:100%; padding:12px 16px; font-size:14.5px; color:var(--ink-2);
    background:var(--bg-soft); border:1px solid var(--line); border-radius:10px;
    transition:all .25s var(--ease); outline:none; font-family:inherit;
}
.form-control:focus { background:#fff; border-color:var(--primary); box-shadow:0 0 0 3px rgba(37,99,235,.12); }
textarea.form-control { resize:vertical; min-height:110px; }
.form-control::placeholder { color:var(--gray-light); }

/* ============ 导航下拉 ============ */
.nav-menu > li.has-sub { position: relative; }
.nav-caret { font-size: 11px; margin-left: 4px; }
.submenu {
    position: absolute; top: calc(100% + 8px); left: 50%; transform: translateX(-50%) translateY(8px);
    min-width: 204px; background: #fff; border: 1px solid var(--line); border-radius: 14px;
    box-shadow: var(--shadow-lg); padding: 8px; opacity: 0; visibility: hidden; list-style: none;
    margin: 0; transition: all .25s var(--ease); z-index: 200;
}
.has-sub:hover .submenu { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.submenu li a {
    display: flex; align-items: center; gap: 9px; padding: 11px 14px; border-radius: 9px;
    font-size: 14.5px; color: var(--ink-2); white-space: nowrap;
}
.submenu li a i { color: var(--primary); font-size: 13px; width: 16px; text-align: center; }
.submenu li a:hover { background: var(--bg-soft); color: var(--primary); }

/* ============ 免费软件 / 下载 ============ */
.prod-tag.free-tag { background: linear-gradient(135deg,#16a34a,#0d9488); }
.soft-badge { display:inline-block; background: rgba(22,163,74,.1); color:#15803d; padding:5px 13px; border-radius:999px; }
.btn-download { background: linear-gradient(135deg,#16a34a,#0d9488); color:#fff; box-shadow: 0 12px 28px -8px rgba(22,163,74,.5); }
.btn-download:hover { transform: translateY(-2px); color:#fff; box-shadow: 0 16px 36px -8px rgba(22,163,74,.6); }

/* ============ 购买与付款 ============ */
.pay-section { background: var(--bg-soft); }
.pay-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 24px; margin: 44px 0; }
.pay-card { background:#fff; border:1px solid var(--line); border-radius: var(--radius-lg); overflow:hidden; box-shadow: var(--shadow-sm); transition: all .3s var(--ease); }
.pay-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.pay-head { padding: 16px 22px; color:#fff; font-size: 17px; font-weight: 700; display:flex; align-items:center; gap:10px; }
.pay-head.wechat { background: linear-gradient(135deg,#16a34a,#15803d); }
.pay-head.alipay { background: linear-gradient(135deg,#1677ff,#0958d9); }
.pay-head.bank { background: linear-gradient(135deg,#475569,#334155); }
.pay-head i { font-size: 21px; }
.pay-qr { padding: 26px 24px 14px; display:flex; justify-content:center; }
.pay-qr img { width:190px; height:190px; object-fit:contain; border:1px solid var(--line); border-radius:14px; background:#fff; }
.qr-ph { width:190px; height:190px; border:2px dashed #cbd5e1; border-radius:14px; display:flex; flex-direction:column; align-items:center; justify-content:center; gap:8px; color:var(--gray-light); text-align:center; background:var(--bg-soft); }
.qr-ph i { font-size: 46px; }
.qr-ph span { font-size: 13.5px; line-height: 1.6; }
.qr-ph small { color: var(--gray-light); font-size: 12px; }
.pay-card > p { text-align:center; font-size:13.5px; color:var(--gray); line-height:1.7; padding: 4px 20px 24px; margin:0; }
.pay-bank { padding: 26px 24px 8px; }
.pay-bank p { text-align:left; padding: 0 0 12px; font-size:14.5px; color:var(--ink-2); display:flex; gap:9px; align-items:flex-start; margin:0; }
.pay-bank p i { color: var(--primary); margin-top: 4px; }
.pay-steps { display:grid; grid-template-columns: repeat(4,1fr); gap:20px; background:#fff; border:1px solid var(--line); border-radius: var(--radius-lg); padding: 32px 30px; }
.pstep { display:flex; gap:14px; align-items:flex-start; }
.pstep .n { flex-shrink:0; width:40px; height:40px; border-radius:50%; background:var(--gradient-soft); color:var(--primary); font-weight:800; font-size:17px; display:flex; align-items:center; justify-content:center; }
.pstep b { font-size:15px; color:var(--ink); display:block; margin-bottom:5px; }
.pstep p { font-size:13px; color:var(--gray); line-height:1.6; margin:0; }

/* ============ 响应式 ============ */
@media (max-width: 991px) {
    .hero-inner { grid-template-columns:1fr; gap:44px; }
    .hero-visual { max-width: 480px; margin:0 auto; width:100%; }
    .hero h1 { font-size: 38px; }
    .grid-4, .adv-grid, .flow { grid-template-columns: repeat(2,1fr); }
    .grid-3, .price-grid, .contact-grid { grid-template-columns:1fr; }
    .grid-2, .about-grid { grid-template-columns:1fr; gap:36px; }
    .price-card.hot { transform:none; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap:32px; }
    .s-title, .cta h2 { font-size:29px; }
    .nav-menu {
        position:fixed; top:70px; left:0; right:0; flex-direction:column; align-items:stretch; gap:0;
        background:#fff; padding:10px 18px 20px; box-shadow: var(--shadow-lg); border-top:1px solid var(--line);
        transform:translateY(-130%); transition: transform .35s var(--ease);
    }
    .nav-menu.open { transform:translateY(0); }
    .nav-menu > li > a { padding:13px 12px; border-radius:8px; }
    .nav-menu > li.active > a::after { display:none; }
    .nav-cta { margin:8px 0 0; text-align:center; }
    .nav-toggle { display:block; }
    .submenu {
        position:static; transform:none; opacity:1; visibility:visible; box-shadow:none;
        border:none; background:var(--bg-soft); border-radius:10px; padding:4px 8px; margin:4px 0; min-width:0;
    }
    .nav-caret { display:none; }
    .submenu li a { padding:9px 12px; font-size:14px; white-space:normal; }
    .pay-grid { grid-template-columns:1fr; }
    .pay-steps { grid-template-columns:1fr 1fr; gap:18px; }
}
@media (max-width: 640px) {
    .section { padding: 64px 0; }
    .hero { padding: 64px 0 60px; }
    .hero h1 { font-size:30px; }
    .hero p.lead { font-size:16px; }
    .hero-stats { gap:26px; }
    .hero-stats .num { font-size:26px; }
    .grid-4, .adv-grid, .flow { grid-template-columns:1fr; }
    .footer-grid { grid-template-columns:1fr; gap:30px; }
    .news-item { flex-direction:column; gap:14px; }
    .news-date { width:auto; border-right:none; border-bottom:1px solid var(--line); padding:0 0 12px; display:flex; align-items:baseline; gap:10px; text-align:left; }
    .article { padding:30px 22px; }
    .article h1 { font-size:23px; }
    .page-hero h1 { font-size:29px; }
    .hero-actions .btn, .cta-actions .btn { width:100%; }
    .mobile-bar {
        display:flex; position:fixed; bottom:0; left:0; right:0; z-index:999;
    }
    .mobile-bar a { flex:1; text-align:center; padding:13px 0; color:#fff; font-size:14px; }
    .mobile-bar a:first-child { background:var(--primary-dark); }
    .mobile-bar a:last-child { background:var(--primary); }
    .pay-steps { grid-template-columns:1fr; }
    body { padding-bottom:50px; }
}

/* ===== 产品详情图片画廊 ===== */
.pgallery { width:100%; }
.pg-stage { position:relative; height:400px; border:1px solid var(--line); border-radius:var(--radius-lg); overflow:hidden; background:var(--gradient-soft); }
.pg-gridbg { position:absolute; inset:0; background-image:linear-gradient(rgba(37,99,235,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(37,99,235,.05) 1px,transparent 1px); background-size:32px 32px; }
.pg-main, .pg-ico { position:absolute; inset:0; width:100%; height:100%; z-index:2; }
.pg-main { display:none; object-fit:cover; }
.pg-ico { display:block; object-fit:contain; padding:24px; }
.pg-fallback { position:absolute; inset:0; z-index:1; display:none; align-items:center; justify-content:center; }
.pg-fbicon { width:130px; height:130px; border-radius:30px; background:var(--gradient); color:#fff; font-size:60px; display:flex; align-items:center; justify-content:center; box-shadow:var(--shadow-blue); }
.pg-fbicon.green { background:linear-gradient(135deg,#16a34a,#0d9488); box-shadow:0 18px 40px rgba(22,163,74,.35); }
.pg-nav { position:absolute; top:50%; transform:translateY(-50%); width:42px; height:42px; border-radius:50%; border:none; cursor:pointer; z-index:5; display:none; align-items:center; justify-content:center; background:rgba(11,30,63,.55); color:#fff; font-size:16px; transition:background .2s; }
.pg-nav:hover { background:var(--primary); }
.pg-prev { left:14px; }
.pg-next { right:14px; }
.pg-count { position:absolute; right:14px; bottom:14px; z-index:5; display:none; background:rgba(11,30,63,.62); color:#fff; font-size:12.5px; padding:4px 11px; border-radius:999px; }
.pg-thumbs { display:grid; grid-template-columns:repeat(4,1fr); gap:12px; margin-top:14px; }
.pg-thumb { width:100%; height:78px; object-fit:cover; border-radius:10px; border:1px solid var(--line); cursor:pointer; transition:all .2s; background:#fff; }
.pg-thumb:hover { transform:translateY(-2px); border-color:var(--primary); }
.pg-thumb.active { border-color:var(--primary); box-shadow:0 0 0 2px rgba(37,99,235,.25); }
/* 列表卡片缩略图 */
.prod-thumb .prod-img { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; z-index:1; }
.prod-thumb.no-img .prod-img { display:none; }
.prod-thumb .prod-tag { z-index:3; }
@media (max-width:991px) { .pg-stage { height:300px; } }
@media (max-width:560px) {
    .pg-stage { height:230px; }
    .pg-thumbs { grid-template-columns:repeat(3,1fr); }
    .pg-thumb { height:60px; }
}