/* ============================================================
   H5 营销宣传网站 - 前端样式
   蓝白科技风 · 响应式（PC + 移动端）
   ============================================================ */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #60a5fa;
    --cyan: #06b6d4;
    --grad: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
    --navy: #0b1526;
    --navy-2: #101d33;
    --text: #334155;
    --text-light: #64748b;
    --border: #e2e8f0;
    --bg: #ffffff;
    --bg-gray: #f6f8fb;
    --radius: 12px;
    --shadow: 0 6px 24px rgba(15, 42, 90, .08);
    --shadow-lg: 0 16px 48px rgba(15, 42, 90, .14);
    --maxw: 1200px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: var(--text);
    font-size: 15px;
    line-height: 1.7;
    background: var(--bg);
}
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }
input, textarea, select, button { font-family: inherit; font-size: inherit; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.ic { width: 16px; height: 16px; flex: none; }

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 11px 26px; border-radius: 8px; font-size: 15px; font-weight: 500;
    border: 1px solid transparent; cursor: pointer; transition: all .25s ease; white-space: nowrap;
}
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 6px 18px rgba(37, 99, 235, .35); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(37, 99, 235, .45); }
.btn-outline { background: transparent; border-color: var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-light { background: #fff; color: var(--primary); }
.btn-light:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(0, 0, 0, .18); }
.btn-sm { padding: 8px 18px; font-size: 14px; }
.btn-lg { padding: 14px 38px; font-size: 16px; }

/* ---------- 区块标题 ---------- */
.section { padding: 80px 0; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 48px; }
.section-head .sec-tag {
    display: inline-block; padding: 4px 14px; border-radius: 999px; font-size: 13px;
    color: var(--primary); background: rgba(37, 99, 235, .08); margin-bottom: 14px;
}
.section-head h2 { font-size: 30px; font-weight: 700; color: #0f172a; line-height: 1.3; }
.section-head p { margin-top: 12px; color: var(--text-light); font-size: 15px; }

/* ============================================================
   顶栏 / 导航
   ============================================================ */
.site-topbar { background: var(--navy); color: #cbd5e1; font-size: 13px; }
.topbar-inner { display: flex; justify-content: space-between; align-items: center; height: 38px; gap: 16px; }
.topbar-slogan { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.topbar-contact { display: flex; gap: 18px; align-items: center; }
.topbar-item { display: inline-flex; align-items: center; gap: 6px; color: #cbd5e1; }
.topbar-item .ic { width: 14px; height: 14px; color: var(--primary-light); }

.site-header {
    position: sticky; top: 0; z-index: 100;
    background: rgba(255, 255, 255, .96); backdrop-filter: blur(10px);
    box-shadow: 0 1px 0 var(--border);
    transition: box-shadow .25s ease;
}
.site-header.is-scrolled { box-shadow: 0 6px 24px rgba(15, 42, 90, .10); }
.header-inner { display: flex; align-items: center; height: 72px; gap: 32px; }

.logo { display: flex; align-items: center; gap: 10px; flex: none; }
.logo-text { font-size: 20px; font-weight: 700; color: #0f172a; letter-spacing: .5px; }

.site-nav { display: flex; gap: 6px; margin-left: auto; }
.site-nav a {
    position: relative; padding: 8px 16px; color: #334155; font-size: 15px; border-radius: 6px; transition: color .2s;
}
.site-nav a:hover { color: var(--primary); }
.site-nav a.active { color: var(--primary); font-weight: 600; }
.site-nav a.active::after {
    content: ""; position: absolute; left: 16px; right: 16px; bottom: 2px; height: 3px;
    border-radius: 2px; background: var(--grad);
}

.header-actions { display: flex; align-items: center; gap: 14px; }
.header-cta { padding: 9px 20px; }

.nav-toggle {
    display: none; flex-direction: column; gap: 5px; padding: 8px; background: none; border: 0; cursor: pointer;
}
.nav-toggle span { display: block; width: 24px; height: 2px; background: #0f172a; border-radius: 2px; transition: all .3s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
    display: none; flex-direction: column; padding: 8px 20px 20px; background: #fff; border-top: 1px solid var(--border);
}
.mobile-nav a { padding: 12px 4px; font-size: 15px; color: #1e293b; border-bottom: 1px solid #f1f5f9; }
.mobile-nav a.active { color: var(--primary); font-weight: 600; }
.mobile-nav .mobile-cta {
    text-align: center; margin-top: 14px; background: var(--grad); color: #fff; border-radius: 8px; border: 0;
}

/* ============================================================
   首页 Hero
   ============================================================ */
.hero {
    position: relative; color: #fff; overflow: hidden;
    background:
        radial-gradient(900px 420px at 85% -10%, rgba(6, 182, 212, .55), transparent 60%),
        radial-gradient(700px 500px at -10% 30%, rgba(37, 99, 235, .6), transparent 60%),
        linear-gradient(135deg, #0b1526 0%, #101d33 55%, #0e1a30 100%);
}
.hero-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 40px; align-items: center; padding: 90px 0 70px; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px; padding: 6px 16px; border-radius: 999px;
    background: rgba(255, 255, 255, .08); border: 1px solid rgba(255, 255, 255, .18);
    font-size: 13px; color: #dbeafe; margin-bottom: 22px;
}
.hero-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: #34d399; box-shadow: 0 0 10px #34d399; }
.hero h1 { font-size: 44px; line-height: 1.25; font-weight: 800; letter-spacing: 1px; }
.hero h1 em { font-style: normal; background: linear-gradient(90deg, #60a5fa, #22d3ee); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-desc { margin: 20px 0 30px; color: #cbd5e1; font-size: 16px; max-width: 560px; }
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 44px; margin-top: 44px; flex-wrap: wrap; }
.hero-stat b { font-size: 30px; font-weight: 800; display: block; color: #fff; }
.hero-stat b i { font-style: normal; color: var(--primary-light); font-size: 22px; }
.hero-stat span { color: #94a3b8; font-size: 13px; }

.hero-visual { position: relative; }
.hero-card {
    background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .12);
    border-radius: 18px; padding: 28px; backdrop-filter: blur(8px); box-shadow: 0 30px 60px rgba(0, 0, 0, .3);
}
.hero-card .hc-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.hero-card .hc-title { font-size: 15px; font-weight: 600; }
.hero-card .hc-pill { font-size: 12px; color: #a5f3fc; background: rgba(6, 182, 212, .18); padding: 3px 10px; border-radius: 999px; }
.hc-row { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-top: 1px solid rgba(255, 255, 255, .08); }
.hc-ico {
    width: 40px; height: 40px; flex: none; border-radius: 10px; display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, rgba(37, 99, 235, .5), rgba(6, 182, 212, .5));
}
.hc-ico .ic { width: 20px; height: 20px; }
.hc-row b { font-size: 14px; font-weight: 600; display: block; }
.hc-row span { font-size: 12px; color: #94a3b8; }
.hero-float {
    position: absolute; right: -18px; top: -22px; background: #fff; color: #0f172a;
    border-radius: 14px; padding: 14px 18px; box-shadow: var(--shadow-lg); display: flex; align-items: center; gap: 12px;
}
.hero-float .num { font-size: 24px; font-weight: 800; color: var(--primary); }
.hero-float .txt { font-size: 12px; color: var(--text-light); line-height: 1.4; }

/* ============================================================
   首页 服务
   ============================================================ */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.service-card {
    background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
    padding: 30px 26px; transition: all .3s ease; position: relative; overflow: hidden;
}
.service-card::before {
    content: ""; position: absolute; inset: 0 0 auto 0; height: 4px;
    background: var(--grad); opacity: 0; transition: opacity .3s;
}
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.service-card:hover::before { opacity: 1; }
.service-icon {
    width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center;
    background: rgba(37, 99, 235, .08); color: var(--primary); margin-bottom: 20px;
}
.service-icon .ic { width: 28px; height: 28px; }
.service-card h3 { font-size: 18px; color: #0f172a; margin-bottom: 4px; }
.service-card .en { font-size: 11px; letter-spacing: 2px; color: var(--primary-light); font-weight: 600; margin-bottom: 12px; display: block; }
.service-card p { font-size: 14px; color: var(--text-light); margin-bottom: 16px; }
.service-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.service-tags span { font-size: 12px; color: var(--text-light); background: var(--bg-gray); padding: 3px 10px; border-radius: 6px; }
.service-more { margin-top: 18px; display: inline-flex; align-items: center; gap: 6px; font-size: 14px; color: var(--primary); font-weight: 500; }
.service-more .ic { width: 14px; height: 14px; transition: transform .2s; }
.service-card:hover .service-more .ic { transform: translateX(4px); }

/* ============================================================
   首页 优势
   ============================================================ */
.why-section { background: var(--bg-gray); }
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.why-item { background: #fff; border-radius: var(--radius); padding: 28px 22px; text-align: center; box-shadow: var(--shadow); transition: transform .3s; }
.why-item:hover { transform: translateY(-5px); }
.why-item .wi-ico {
    width: 52px; height: 52px; margin: 0 auto 16px; border-radius: 50%;
    background: var(--grad); color: #fff; display: flex; align-items: center; justify-content: center;
    box-shadow: 0 8px 20px rgba(37, 99, 235, .3);
}
.why-item .wi-ico .ic { width: 24px; height: 24px; }
.why-item h3 { font-size: 16px; color: #0f172a; margin-bottom: 8px; }
.why-item p { font-size: 13px; color: var(--text-light); }

/* ============================================================
   首页 案例 / 新闻
   ============================================================ */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card {
    background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
    transition: all .3s ease; display: flex; flex-direction: column;
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.case-cover { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: #e2e8f0; }
.case-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.case-card:hover .case-cover img { transform: scale(1.06); }
.case-cat {
    position: absolute; left: 12px; top: 12px; background: rgba(15, 23, 42, .72); color: #fff;
    font-size: 12px; padding: 3px 10px; border-radius: 6px; backdrop-filter: blur(4px);
}
.case-body { padding: 18px 20px 22px; display: flex; flex-direction: column; flex: 1; }
.case-body h3 { font-size: 16px; color: #0f172a; font-weight: 600; margin-bottom: 8px; line-height: 1.4; }
.case-body p { font-size: 13px; color: var(--text-light); flex: 1; }
.case-meta { display: flex; align-items: center; justify-content: space-between; margin-top: 14px; font-size: 12px; color: #94a3b8; }
.case-meta .views { display: inline-flex; align-items: center; gap: 4px; }
.case-meta .views .ic { width: 13px; height: 13px; }

.section-more { text-align: center; margin-top: 40px; }

.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-item {
    background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
    padding: 22px; transition: all .3s ease;
}
.news-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
.news-item .date { font-size: 12px; color: var(--primary); background: rgba(37, 99, 235, .08); display: inline-block; padding: 2px 10px; border-radius: 6px; margin-bottom: 12px; }
.news-item h3 { font-size: 15px; font-weight: 600; color: #0f172a; line-height: 1.5; margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-item p { font-size: 13px; color: var(--text-light); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-item .views { display: inline-flex; align-items: center; gap: 4px; font-size: 12px; color: #94a3b8; margin-top: 12px; }
.news-item .views .ic { width: 13px; height: 13px; }

/* ============================================================
   CTA / 页脚
   ============================================================ */
.cta-banner { background: var(--grad); padding: 46px 0; color: #fff; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.cta-text h2 { font-size: 26px; font-weight: 700; }
.cta-text p { color: rgba(255, 255, 255, .85); margin-top: 6px; }
.cta-actions { display: flex; align-items: center; gap: 20px; }
.cta-phone { display: inline-flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 700; }
.cta-phone .ic { width: 22px; height: 22px; }

.site-footer { background: var(--navy); color: #94a3b8; }
.footer-top {
    display: grid; grid-template-columns: 1.3fr 1fr 1fr 1.1fr; gap: 40px; padding: 60px 0 44px;
}
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-logo span { font-size: 18px; font-weight: 700; color: #fff; }
.footer-about p { font-size: 13px; line-height: 1.9; }
.footer-social { display: flex; gap: 10px; margin-top: 18px; }
.social-item {
    width: 38px; height: 38px; border-radius: 10px; display: flex; align-items: center; justify-content: center;
    background: rgba(255, 255, 255, .06); color: #cbd5e1; cursor: pointer; transition: all .25s;
}
.social-item:hover { background: var(--primary); color: #fff; }
.social-item .ic { width: 18px; height: 18px; }
.footer-col h3 { color: #fff; font-size: 16px; margin-bottom: 18px; }
.footer-col ul li { margin-bottom: 12px; font-size: 14px; }
.footer-col ul a:hover { color: var(--primary-light); }
.footer-contact li { line-height: 1.9; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .08); padding: 18px 0; font-size: 13px; }
.footer-bottom-inner { display: flex;flex-direction: column; justify-content: center;align-items: center; gap: 12px; flex-wrap: wrap; }
.footer-bottom a:hover { color: var(--primary-light); }

.fixed-contact { position: fixed; right: 18px; bottom: 24px; z-index: 90; display: flex; flex-direction: column; gap: 12px; }
.fixed-item {
    width: 48px; height: 48px; border-radius: 50%; display: flex; flex-direction: column; align-items: center; justify-content: center;
    background: var(--grad); color: #fff; box-shadow: var(--shadow-lg); font-size: 10px; gap: 2px;
}
.fixed-item .ic { width: 20px; height: 20px; }
.fixed-top { background: #334155; opacity: 0; pointer-events: none; transition: opacity .3s; }
.fixed-top.show { opacity: 1; pointer-events: auto; }

/* ============================================================
   内页 页头横幅
   ============================================================ */
.page-banner {
    position: relative; color: #fff; text-align: center; padding: 64px 0 56px; overflow: hidden;
    background:
        radial-gradient(600px 320px at 90% -10%, rgba(6, 182, 212, .5), transparent 60%),
        radial-gradient(500px 380px at 0% 110%, rgba(37, 99, 235, .55), transparent 60%),
        linear-gradient(135deg, #0b1526, #13233f);
}
.page-banner h1 { font-size: 32px; font-weight: 800; }
.page-banner p { color: #cbd5e1; margin-top: 12px; max-width: 680px; margin-inline: auto; font-size: 15px; }
.page-banner .crumbs { margin-top: 18px; font-size: 13px; color: #94a3b8; }
.page-banner .crumbs a:hover { color: #fff; }
.page-banner .crumbs .sep { margin: 0 8px; color: #475569; }

/* 筛选栏 */
.filter-bar { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 30px; }
.filter-bar .f-item {
    padding: 7px 18px; border-radius: 999px; background: #fff; border: 1px solid var(--border);
    font-size: 14px; color: var(--text); cursor: pointer; transition: all .2s;
}
.filter-bar .f-item:hover { color: var(--primary); border-color: var(--primary); }
.filter-bar .f-item.active { background: var(--grad); color: #fff; border-color: transparent; }

/* ============================================================
   文章/案例 列表与详情
   ============================================================ */
.list-layout { display: grid; grid-template-columns: 1fr 320px; gap: 32px; align-items: start; }
.side-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; margin-bottom: 24px; }
.side-card h3 { font-size: 16px; color: #0f172a; padding-bottom: 14px; border-bottom: 1px solid var(--border); margin-bottom: 14px; position: relative; }
.side-card h3::after { content: ""; position: absolute; left: 0; bottom: -1px; width: 42px; height: 3px; border-radius: 2px; background: var(--grad); }
.side-list li { padding: 9px 0; border-bottom: 1px dashed #eef2f7; font-size: 14px; display: flex; gap: 8px; align-items: baseline; }
.side-list li:last-child { border-bottom: 0; }
.side-list a:hover { color: var(--primary); }
.side-list .num { color: var(--primary-light); font-size: 12px; font-weight: 700; }
.side-news li { display: flex; flex-direction: column; gap: 4px; }
.side-news li time { font-size: 12px; color: #94a3b8; }

.article-box { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 34px 38px; }
.article-head { text-align: center; border-bottom: 1px solid var(--border); padding-bottom: 24px; margin-bottom: 28px; }
.article-head .cat { display: inline-block; color: var(--primary); background: rgba(37, 99, 235, .08); font-size: 13px; padding: 3px 12px; border-radius: 6px; margin-bottom: 14px; }
.article-head h1 { font-size: 26px; color: #0f172a; font-weight: 700; line-height: 1.4; }
.article-meta { margin-top: 14px; font-size: 13px; color: #94a3b8; display: flex; justify-content: center; gap: 20px; flex-wrap: wrap; }
.article-meta span { display: inline-flex; align-items: center; gap: 5px; }
.article-meta .ic { width: 14px; height: 14px; }
.article-cover { border-radius: var(--radius); overflow: hidden; margin-bottom: 26px; }
.article-cover img { width: 100%; }
.article-content { font-size: 15px; line-height: 1.95; color: #334155; }
.article-content h2 { font-size: 21px; color: #0f172a; margin: 26px 0 12px; padding-left: 12px; border-left: 4px solid var(--primary); }
.article-content h3 { font-size: 18px; color: #0f172a; margin: 22px 0 10px; }
.article-content p { margin-bottom: 14px; }
.article-content ul, .article-content ol { margin: 0 0 14px; padding-left: 22px; }
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li { margin-bottom: 6px; }
.article-content img { border-radius: 8px; margin: 10px auto; }
.article-content a { color: var(--primary); }
.article-content blockquote { border-left: 4px solid var(--primary-light); background: var(--bg-gray); padding: 12px 16px; margin: 16px 0; border-radius: 0 8px 8px 0; color: var(--text-light); }
.article-content table { width: 100%; border-collapse: collapse; margin: 16px 0; }
.article-content td, .article-content th { border: 1px solid var(--border); padding: 8px 12px; }
.article-tags { margin-top: 26px; display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.article-tags span { font-size: 13px; color: var(--text-light); }
.article-tags a { font-size: 12px; background: var(--bg-gray); padding: 4px 12px; border-radius: 999px; }
.article-tags a:hover { background: rgba(37, 99, 235, .1); color: var(--primary); }

.article-nav { display: flex; justify-content: space-between; gap: 16px; margin-top: 30px; padding-top: 20px; border-top: 1px solid var(--border); font-size: 14px; }
.article-nav a { color: var(--text-light); max-width: 46%; }
.article-nav a:hover { color: var(--primary); }
.article-nav .empty { color: #cbd5e1; max-width: 46%; }

/* 相关推荐 */
.related { margin-top: 34px; }
.related h3 { font-size: 18px; color: #0f172a; margin-bottom: 16px; padding-left: 12px; border-left: 4px solid var(--primary); }

/* ============================================================
   联系我们
   ============================================================ */
.contact-layout { display: grid; grid-template-columns: .85fr 1.15fr; gap: 32px; align-items: start; }
.contact-info .ci-item { display: flex; gap: 16px; align-items: flex-start; margin-bottom: 22px; }
.ci-icon {
    width: 46px; height: 46px; flex: none; border-radius: 12px; display: flex; align-items: center; justify-content: center;
    background: rgba(37, 99, 235, .08); color: var(--primary);
}
.ci-icon .ic { width: 22px; height: 22px; }
.ci-item b { display: block; font-size: 15px; color: #0f172a; margin-bottom: 3px; }
.ci-item p { font-size: 14px; color: var(--text-light); }

.contact-form { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 30px 32px; }
.contact-form h2 { font-size: 20px; color: #0f172a; margin-bottom: 6px; }
.contact-form > p { font-size: 13px; color: var(--text-light); margin-bottom: 24px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-item { display: flex; flex-direction: column; gap: 6px; }
.form-item.full { grid-column: 1 / -1; }
.form-item label { font-size: 13px; color: #1e293b; font-weight: 500; }
.form-item label i { color: #ef4444; font-style: normal; }
.form-item input, .form-item select, .form-item textarea {
    border: 1px solid var(--border); border-radius: 8px; padding: 10px 14px; font-size: 14px; color: #1e293b;
    background: #fbfcfe; transition: all .2s; width: 100%; outline: none;
}
.form-item textarea { resize: vertical; min-height: 110px; }
.form-item input:focus, .form-item select:focus, .form-item textarea:focus { border-color: var(--primary); background: #fff; box-shadow: 0 0 0 3px rgba(37, 99, 235, .1); }
.form-captcha { display: flex; gap: 10px; align-items: center; }
.form-captcha img { display: block; height: 50px; max-width: 100%; border-radius: 8px; cursor: pointer; border: 1px solid var(--border); }
.form-phone { display: flex; gap: 8px; align-items: center; }
.form-phone input { flex: 1; min-width: 0; }
.btn-sms { flex: none; padding: 0 14px; height: 42px; white-space: nowrap; background: var(--primary); color: #fff; border: none; cursor: pointer; }
.btn-sms:disabled { background: #94a3b8; cursor: not-allowed; }
.form-agree { font-size: 12px; color: var(--text-light); display: inline; }
.form-agree input { accent-color: var(--primary); }
.form-submit { margin-top: 8px; }

/* ============================================================
   搜索 / 空状态 / 分页
   ============================================================ */
.search-form { display: flex; gap: 12px; max-width: 520px; margin: 0 auto 36px; }
.search-form input {
    flex: 1; border: 1px solid var(--border); border-radius: 999px; padding: 11px 22px; outline: none; font-size: 15px;
}
.search-form input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37, 99, 235, .1); }

.empty-state { text-align: center; padding: 60px 0; color: var(--text-light); }
.empty-state .ic { width: 52px; height: 52px; margin: 0 auto 14px; color: #cbd5e1; }
.empty-state p { font-size: 15px; }

.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 40px; flex-wrap: wrap; }
.pagination a, .pagination span {
    min-width: 38px; height: 38px; padding: 0 12px; display: inline-flex; align-items: center; justify-content: center;
    border: 1px solid var(--border); border-radius: 8px; font-size: 14px; color: var(--text); background: #fff; transition: all .2s;
}
.pagination a:hover { border-color: var(--primary); color: var(--primary); }
.pagination .current { background: var(--grad); color: #fff; border-color: transparent; }
.pagination .disabled { opacity: .5; pointer-events: none; }
.pagination .ellipsis { border: 0; }

/* ============================================================
   404
   ============================================================ */
.error-page { text-align: center; padding: 110px 20px; }
.error-page .code {
    font-size: 120px; font-weight: 800; line-height: 1;
    background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.error-page h2 { font-size: 24px; color: #0f172a; margin: 18px 0 8px; }
.error-page p { color: var(--text-light); margin-bottom: 28px; }

/* ============================================================
   动画
   ============================================================ */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1024px) {
    .services-grid, .case-grid, .news-grid { grid-template-columns: repeat(2, 1fr); }
    .why-grid { grid-template-columns: repeat(2, 1fr); }
    .list-layout { grid-template-columns: 1fr; }
    .side-bar { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
    .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .section { padding: 56px 0; }
    .section-head h2 { font-size: 24px; }

    .topbar-slogan { display: none; }
    .topbar-inner { justify-content: center; }
    .topbar-contact { gap: 16px; }

    .header-inner { height: 60px; gap: 0; }
    .site-nav { display: none; }
    .nav-toggle { display: flex; margin-left: auto; }
    .header-cta { display: none; }
    .mobile-nav.open { display: flex; }
    .logo-text { font-size: 17px; }

    .hero-grid { grid-template-columns: 1fr; padding: 48px 0 40px; gap: 32px; }
    .hero h1 { font-size: 30px; }
    .hero-desc { font-size: 15px; }
    .hero-stats { gap: 26px; }
    .hero-stats b { font-size: 24px; }
    .hero-visual { display: none; }

    .services-grid, .case-grid, .news-grid { grid-template-columns: 1fr; }
    .why-grid { grid-template-columns: 1fr; }
    .footer-top { grid-template-columns: 1fr; gap: 28px; }
    .footer-bottom-inner { flex-direction: column; gap: 6px; }

    .page-banner { padding: 44px 0 40px; }
    .page-banner h1 { font-size: 24px; }

    .article-box { padding: 22px 18px; }
    .article-head h1 { font-size: 21px; }
    .article-content { font-size: 15px; }

    .contact-layout { grid-template-columns: 1fr; }
    .form-grid { grid-template-columns: 1fr; }
    .cta-inner { flex-direction: column; text-align: center; }
    .cta-text h2 { font-size: 21px; }
    .side-bar { display: block; }
    .fixed-contact { right: 12px; bottom: 16px; }
}

@media (max-width: 480px) {
    .hero h1 { font-size: 25px; }
    .hero-btns .btn { padding: 10px 20px; font-size: 14px; }
    .article-nav { flex-direction: column; }
    .article-nav a, .article-nav .empty { max-width: 100%; }
}