/* ============================================================
   官网首页 / 页脚 / 关于我们 / 业务服务 设计样式
   ============================================================ */

/* ===== 品牌 Logo ===== */
.brand { display: flex; align-items: center; gap: 10px; color: var(--brand-dark); }
.brand:hover { color: var(--brand-dark); }
.brand-logo { height: 40px; width: auto; max-width: 220px; display: block; }
.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text b { font-size: 19px; font-weight: 700; color: var(--brand-dark); letter-spacing: .5px; }
.brand-text small { font-size: 11px; color: var(--text-muted); letter-spacing: 1px; }

/* ===== 导航 ===== */
.nav { gap: 30px; }
.nav a { position: relative; font-size: 15px; }
.nav a.active::after, .nav a:hover::after { content: ''; position: absolute; left: 0; bottom: -6px; width: 100%; height: 2px; border-radius: 2px; background: var(--brand); }
.nav-actions { display: flex; align-items: center; gap: 16px; }
.nav-login-link { font-size: 14px; color: var(--text-body); }
.nav-login-link:hover { color: var(--brand); }
.nav .btn-cta { padding: 9px 22px; border-radius: 20px; }

/* ===== 页脚 ===== */
.site-footer { background: var(--brand-dark); color: #cbd5e1; padding: 60px 0 0; text-align: left; }
.site-footer a { color: #cbd5e1; }
.site-footer a:hover { color: #fff; }
.footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 36px; }
.footer-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
.footer-logo-img { height: 38px; width: auto; }
.footer-logo b { font-size: 18px; color: #fff; }
.footer-desc { font-size: 13px; line-height: 1.8; color: #94a3b8; margin: 0; }
.footer-col h4 { color: #fff; font-size: 15px; margin: 0 0 18px; font-weight: 600; }
.footer-col a { display: block; font-size: 13px; margin-bottom: 12px; color: #94a3b8; }
.footer-col a:hover { color: #fff; }
.fc-item { font-size: 13px; color: #94a3b8; margin: 0 0 12px; line-height: 1.7; }

.footer-demo { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; padding: 14px 0; border-top: 1px solid rgba(255,255,255,.08); }
.fd-label { font-size: 12px; color: #64748b; margin-right: 6px; }
.footer-demo .nl-test { font-size: 12px; color: #7aa2e8; background: rgba(19,86,194,.25); border: 1px solid rgba(19,86,194,.35); padding: 3px 10px; border-radius: 12px; cursor: pointer; }
.footer-demo .nl-test:hover { background: rgba(19,86,194,.4); color: #fff; }

.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 18px 0; }
.footer-bottom-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.footer-copy { font-size: 12px; color: #64748b; margin: 0; }
.footer-beian { font-size: 12px; color: #64748b; margin: 0; }
.footer-beian a { color: #64748b; }

/* ===== 语言切换 ===== */
.lang-switch { display: flex; align-items: center; gap: 5px; font-size: 13px; color: var(--text-muted); }
.lang-switch a { color: var(--text-muted); cursor: pointer; padding: 2px 4px; }
.lang-switch a.active { color: var(--brand); font-weight: 700; }
.lang-switch a:hover { color: var(--brand); }

/* ===== 页脚角色登录入口 ===== */
.footer-login { border-top: 1px solid rgba(255,255,255,.08); padding: 16px 0; }
.footer-login .container { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.fl-label { font-size: 13px; color: #64748b; margin-right: 4px; }
.footer-login a { font-size: 13px; color: #94a3b8; padding: 4px 12px; border: 1px solid rgba(255,255,255,.12); border-radius: 14px; transition: all .2s; }
.footer-login a:hover { color: #fff; border-color: var(--brand); background: rgba(19,86,194,.25); }

/* ===== Hero ===== */
.hero { padding: 110px 0 80px; }
.hero-bg { position: absolute; inset: 0; background: radial-gradient(circle at 80% 20%, rgba(0,180,216,.25), transparent 50%), radial-gradient(circle at 10% 90%, rgba(255,138,0,.15), transparent 45%); }
.hero h1 { font-size: 46px; }
.hero-stats { gap: 70px; }

/* ===== 区块英文小标题 ===== */
.section-kicker { display: block; font-size: 12px; letter-spacing: 3px; color: var(--cta); font-weight: 700; margin-bottom: 10px; text-transform: uppercase; }
.section-kicker.left { text-align: left; }

/* ===== 核心业务（4 列） ===== */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.service-card { display: block; color: inherit; border: 1px solid #eef0f3; }
.service-card:hover { color: inherit; border-color: transparent; }
.service-card .s-icon { font-size: 36px; }

/* ===== 关于我们简介 ===== */
.about-brief { padding: 80px 0; background: #fff; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-visual { position: relative; }
.about-img { border-radius: 16px; background: linear-gradient(135deg, #1356C2 0%, #00B4D8 55%, #0A2A52 100%); min-height: 340px; position: relative; overflow: hidden; }
.about-img::after { content: '🌍'; position: absolute; right: 20px; bottom: 20px; font-size: 90px; opacity: .25; }
.about-img-lg { min-height: 360px; }
.about-card { position: absolute; left: -20px; bottom: 28px; background: #fff; border-radius: 14px; padding: 20px 26px; box-shadow: 0 12px 30px rgba(0,0,0,.12); text-align: center; }
.about-card b { display: block; font-size: 34px; color: var(--brand); }
.about-card span { font-size: 13px; color: var(--text-muted); }
.about-text h2 { font-size: 30px; margin: 0 0 16px; }
.about-lead { font-size: 16px; color: var(--text-body); line-height: 1.8; margin: 0 0 20px; }
.about-points { list-style: none; padding: 0; margin: 0 0 28px; }
.about-points li { padding: 8px 0; font-size: 14px; color: var(--text-body); }
.about-points li b { color: var(--text-title); }

/* ===== 核心优势（4 列卡片） ===== */
.feature { padding: 80px 0; }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.fcard { background: #fff; border: 1px solid #eef0f3; border-radius: 14px; padding: 30px 24px; text-align: center; transition: all .25s; }
.fcard:hover { transform: translateY(-6px); box-shadow: 0 12px 30px rgba(19,86,194,.12); border-color: transparent; }
.fc-icon { font-size: 38px; margin-bottom: 14px; }
.fcard b { display: block; font-size: 17px; color: var(--text-title); margin-bottom: 10px; }
.fcard p { color: var(--text-muted); font-size: 13px; margin: 0; line-height: 1.7; }

/* ===== 页面头部（子页面） ===== */
.page-hero { background: linear-gradient(135deg, #0A2A52 0%, #1356C2 60%, #1b6bd6 100%); color: #fff; padding: 70px 0; text-align: center; position: relative; overflow: hidden; }
.page-hero::after { content: ''; position: absolute; top: -80px; right: -60px; width: 300px; height: 300px; border-radius: 50%; background: rgba(0,180,216,.15); }
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { color: #fff; font-size: 36px; margin: 0 0 10px; }
.page-hero p { font-size: 15px; opacity: .9; margin: 0; }

/* ===== 关于我们页面 ===== */
.about-section { padding: 80px 0; background: #fff; }
.about-stats { padding: 60px 0; background: linear-gradient(135deg, #0A2A52, #1356C2); color: #fff; }
.about-stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: center; }
.as-item b { display: block; font-size: 36px; font-weight: 700; color: #fff; }
.as-item span { font-size: 14px; opacity: .8; }
.about-values { padding: 80px 0; }

/* ===== 联系我们 ===== */
.contact { padding: 80px 0; background: #fff; }
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.contact-card { text-align: center; background: var(--bg-page); border: 1px solid #eef0f3; border-radius: 14px; padding: 36px 24px; }
.cc-icon { font-size: 38px; margin-bottom: 14px; }
.contact-card h3 { font-size: 17px; margin: 0 0 8px; }
.contact-card p { color: var(--text-body); font-size: 15px; margin: 0; }

/* ===== 业务服务页面 ===== */
.service-detail-section { padding: 70px 0; }
.sv-item { display: flex; gap: 24px; padding: 36px 32px; background: #fff; border: 1px solid #eef0f3; border-radius: 16px; margin-bottom: 24px; transition: all .25s; scroll-margin-top: 80px; }
.sv-item:hover { box-shadow: 0 12px 30px rgba(0,0,0,.08); border-color: transparent; }
.sv-icon { font-size: 42px; flex-shrink: 0; width: 64px; height: 64px; background: #eef4ff; border-radius: 14px; display: flex; align-items: center; justify-content: center; }
.sv-body h2 { font-size: 21px; margin: 0 0 12px; }
.sv-body p { color: var(--text-body); font-size: 14px; line-height: 1.8; margin: 0 0 14px; }
.sv-body ul { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 10px; }
.sv-body ul li { background: #f0f7ff; color: #1356C2; font-size: 12px; padding: 5px 12px; border-radius: 6px; }

/* ===== 全球网络 ===== */
.network { padding: 80px 0; background: #fff; }
.net-hub { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 32px; }
.net-hub-item { background: var(--bg-page); border: 1px solid #eef0f3; border-radius: 14px; padding: 26px 28px; }
.nh-label { font-size: 15px; font-weight: 700; color: var(--text-title); margin-bottom: 14px; }
.nh-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.nh-tag { background: #eef4ff; color: #1356C2; font-size: 13px; padding: 6px 14px; border-radius: 8px; }
.net-regions { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.net-region { background: #fff; border: 1px solid #eef0f3; border-radius: 12px; padding: 22px; transition: all .25s; }
.net-region:hover { border-color: var(--brand); box-shadow: 0 8px 24px rgba(19,86,194,.1); }
.net-region b { display: block; font-size: 16px; color: var(--text-title); margin-bottom: 8px; }
.net-region p { color: var(--text-muted); font-size: 13px; line-height: 1.7; margin: 0; }

/* ===== 自研系统 ===== */
.ofs { padding: 80px 0; background: linear-gradient(135deg, #0A2A52, #1356C2); }
.ofs .section-head h2 { color: #fff; }
.ofs .section-head p { color: #cbd5e1; }
.ofs .section-kicker { color: var(--cta); }
.ofs-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.ofs-card { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12); border-radius: 14px; padding: 30px 26px; text-align: center; transition: all .25s; }
.ofs-card:hover { background: rgba(255,255,255,.1); transform: translateY(-4px); }
.ofs-icon { font-size: 40px; margin-bottom: 14px; }
.ofs-card b { display: block; font-size: 17px; color: #fff; margin-bottom: 10px; }
.ofs-card p { color: #cbd5e1; font-size: 13px; line-height: 1.7; margin: 0; }

/* ===== 订单查询 ===== */
.track-hero { padding: 60px 0 44px; background: linear-gradient(160deg, #0A2A52, #1356C2); text-align: center; }
.track-head h1 { color: #fff; font-size: 34px; font-weight: 700; letter-spacing: 2px; margin-bottom: 8px; }
.track-head p { color: rgba(255,255,255,.6); font-size: 13px; letter-spacing: 6px; margin-bottom: 34px; }
.track-search { max-width: 620px; margin: 0 auto; background: #fff; border-radius: 14px; padding: 8px; display: flex; gap: 8px; box-shadow: 0 16px 40px rgba(0,0,0,.18); }
.track-search input { flex: 1; height: 50px; border: none; outline: none; padding: 0 18px; font-size: 15px; color: #333; border-radius: 10px; background: #f6f8fb; }
.track-search button { height: 50px; padding: 0 32px; background: linear-gradient(135deg, #1356C2, #0A2A52); color: #fff; border: none; border-radius: 10px; font-size: 16px; font-weight: 600; cursor: pointer; letter-spacing: 3px; }
.track-search button:hover { opacity: .92; }
.track-result { padding: 30px 0 70px; background: var(--bg-page); min-height: 220px; }
.track-result .container { max-width: 1080px; }

.tk-sum { background: #fff; border-radius: 16px; padding: 24px 28px 20px; box-shadow: 0 6px 24px rgba(11,45,78,.08); margin-bottom: 22px; }
.tk-sum-hd { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; flex-wrap: wrap; padding-bottom: 16px; border-bottom: 1px dashed #e9eff6; }
.tk-code { font-size: 20px; font-weight: 700; color: #0B2D4E; display: flex; align-items: center; gap: 10px; }
.tk-route { font-size: 13px; color: #8a97a8; margin-top: 6px; }
.tk-right { display: flex; align-items: center; gap: 10px; }
.tk-status { padding: 5px 16px; border-radius: 20px; font-size: 13px; font-weight: 600; }
.tk-status.ongoing { background: #fff7e6; color: #d48806; border: 1px solid #ffd591; }
.tk-status.completed { background: #f6ffed; color: #389e0d; border: 1px solid #b7eb8f; }
.tk-status.cancelled { background: #fff2f0; color: #cf1322; border: 1px solid #ffa39e; }
.tk-copy { padding: 5px 14px; border-radius: 8px; border: 1px solid #d6e2ef; background: #f7fafd; color: #1356C2; font-size: 13px; cursor: pointer; }
.tk-copy:hover { background: #eef5fd; }
.tk-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 14px 22px; padding: 16px 0 4px; }
.tk-si { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.tk-si .k { font-size: 12px; color: #9aa7b5; }
.tk-si .v { font-size: 14px; color: #1f2d3d; font-weight: 600; word-break: break-all; }
.tk-metrics { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 12px; margin-top: 16px; }
.tk-mt { background: #f6f9fd; border: 1px solid #e8f0f8; border-radius: 12px; padding: 12px 16px; display: flex; flex-direction: column; justify-content: center; }
.tk-mt .v { font-size: 15px; font-weight: 700; color: #0B2D4E; }
.tk-mt .l { font-size: 12px; color: #94a3b3; margin-top: 3px; }

.tk-tl { background: #fff; border-radius: 16px; padding: 26px 30px 10px; box-shadow: 0 6px 24px rgba(11,45,78,.08); }
.tk-tl-hd { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-bottom: 16px; border-bottom: 1px dashed #e9eff6; margin-bottom: 18px; }
.tk-tl-hd .t { font-size: 17px; font-weight: 700; color: #0B2D4E; display: flex; align-items: center; gap: 10px; }
.tk-tl-hd .t:before { content: ''; width: 4px; height: 18px; border-radius: 2px; background: linear-gradient(180deg, #1356C2, #52c41a); }
.tk-tl-hd .c { font-size: 13px; color: #9aa7b5; }
.tk-line { position: relative; padding: 0 0 6px; }
.tk-axis { position: absolute; left: 50%; top: 6px; bottom: 26px; width: 2px; margin-left: -1px; background: linear-gradient(180deg, #1356C2 0%, #9fc4ea 45%, #cfe0f5 100%); border-radius: 2px; }
.tk-node { position: relative; width: 50%; padding: 0 48px 22px 0; }
.tk-node.right { margin-left: 50%; padding: 0 0 22px 48px; }
.tk-node .dot { position: absolute; top: 16px; right: -9px; width: 18px; height: 18px; border-radius: 50%; background: #fff; border: 4px solid #1356C2; box-shadow: 0 2px 8px rgba(19,86,194,.35); z-index: 2; }
.tk-node.right .dot { right: auto; left: -9px; }
.tk-node .conn { position: absolute; top: 24px; right: 9px; width: 39px; height: 2px; background: #dbe7f3; }
.tk-node.right .conn { right: auto; left: 9px; }
.tk-node.newest .dot { border-color: #52c41a; box-shadow: 0 0 0 6px rgba(82,196,26,.16); }
.tk-card { position: relative; background: #fff; border: 1px solid #e8eef5; border-radius: 14px; padding: 16px 20px 15px; box-shadow: 0 4px 18px rgba(11,45,78,.07); }
.tk-card:before { content: ''; position: absolute; top: 14px; bottom: 14px; right: -1px; width: 3px; border-radius: 2px; background: linear-gradient(180deg, #4a90d9, #1356C2); }
.tk-node.right .tk-card:before { right: auto; left: -1px; }
.tk-node.newest .tk-card { border-color: #d6f0c2; }
.tk-card-top { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 8px; }
.tk-time { font-size: 12.5px; color: #7b8a9a; font-variant-numeric: tabular-nums; }
.tk-badge { font-size: 11.5px; padding: 2px 9px; border-radius: 10px; background: #f6ffed; color: #389e0d; border: 1px solid #b7eb8f; }
.tk-card-t { font-size: 16px; font-weight: 700; color: #14263c; }
.tk-card-m { font-size: 13px; color: #6b7c8d; margin-top: 6px; }
.tk-card-d { font-size: 13px; color: #7b8a9a; margin-top: 8px; padding-top: 8px; border-top: 1px dashed #eef3f8; line-height: 1.7; white-space: pre-wrap; word-break: break-word; }
.tk-empty { text-align: center; padding: 40px 10px; color: #b3bfcc; font-size: 14px; }
.tk-loading { text-align: center; padding: 40px; color: #8a97a8; font-size: 14px; }
.tk-error { text-align: center; padding: 24px; color: #cf1322; font-size: 14px; background: #fff2f0; border: 1px solid #ffa39e; border-radius: 12px; }
.tk-spinner { display: inline-block; width: 28px; height: 28px; border: 3px solid #e0e8f0; border-top-color: #1356C2; border-radius: 50%; animation: tkspin .8s linear infinite; margin-bottom: 8px; }
@keyframes tkspin { to { transform: rotate(360deg); } }

/* ===== 新闻资讯 ===== */
.news { padding: 80px 0; background: #f8fafc; }
.news-layout { display: grid; grid-template-columns: 1.25fr 1fr; gap: 24px; }
.news-featured { grid-row: span 2; background: #fff; border-radius: 16px; overflow: hidden; border: 1px solid #eef0f3; text-decoration: none; display: flex; flex-direction: column; transition: .25s; box-shadow: 0 2px 12px rgba(11,45,78,.04); }
.news-featured:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(11,45,78,.12); border-color: #cfe0f5; }
.nf-cover { height: 230px; background: linear-gradient(135deg, #1356C2, #0A2A52); display: flex; align-items: center; justify-content: center; }
.nf-cover img { width: 100%; height: 100%; object-fit: cover; }
.nf-emoji { font-size: 60px; opacity: .9; }
.nf-body { padding: 22px 26px 26px; flex: 1; display: flex; flex-direction: column; }
.nf-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.nf-date { font-size: 13px; color: #94a3b3; }
.nf-tag { font-size: 12px; padding: 3px 12px; border-radius: 12px; background: linear-gradient(135deg, #1356C2, #0A2A52); color: #fff; letter-spacing: 1px; }
.nf-body h3 { font-size: 22px; color: var(--text-title); line-height: 1.42; margin-bottom: 12px; }
.nf-body p { font-size: 14px; color: var(--text-muted); line-height: 1.8; flex: 1; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.nf-more { margin-top: 16px; font-size: 14px; color: #1356C2; font-weight: 600; }
.news-item { background: #fff; border: 1px solid #eef0f3; border-radius: 14px; padding: 18px 20px; text-decoration: none; display: flex; gap: 16px; align-items: center; transition: .2s; box-shadow: 0 2px 10px rgba(11,45,78,.03); }
.news-item:hover { border-color: #cfe0f5; box-shadow: 0 10px 26px rgba(11,45,78,.09); }
.news-item:hover .ni-arrow { transform: translateX(3px); }
.ni-date { flex-shrink: 0; width: 62px; text-align: center; padding: 11px 6px; border-radius: 10px; background: linear-gradient(160deg, #f0f5ff, #e6f0ff); }
.ni-day { display: block; font-size: 24px; font-weight: 700; color: #1356C2; line-height: 1; }
.ni-ym { display: block; font-size: 11px; color: #94a3b3; margin-top: 5px; }
.ni-body { flex: 1; min-width: 0; }
.ni-body h3 { font-size: 16px; color: var(--text-title); line-height: 1.42; margin-bottom: 6px; }
.ni-body p { font-size: 13px; color: var(--text-muted); line-height: 1.6; margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.ni-arrow { color: #1356C2; font-size: 20px; flex-shrink: 0; transition: .2s; }
.news-more { text-align: center; margin-top: 34px; }

.news-list { padding: 40px 0 80px; background: #f8fafc; }
.news-list .container { max-width: 900px; }
.news-items { display: flex; flex-direction: column; gap: 16px; }
.news-pagination { display: flex; align-items: center; justify-content: center; gap: 16px; margin-top: 40px; }
.np-btn { padding: 9px 22px; border-radius: 8px; border: 1px solid #d6e2ef; color: #1356C2; text-decoration: none; font-size: 14px; transition: .2s; }
.np-btn:hover { background: #eef5fd; }
.np-btn.disabled { color: #c0c8d2; border-color: #e5e9f0; pointer-events: none; }
.np-info { font-size: 14px; color: #8a97a8; }

.news-detail { padding: 40px 0 80px; background: #f8fafc; }
.news-detail .container { max-width: 900px; }
.nd-wrap { background: #fff; border-radius: 18px; padding: 44px 56px; box-shadow: 0 6px 30px rgba(11,45,78,.06); }
.nd-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.nd-back { font-size: 14px; color: #1356C2; text-decoration: none; }
.nd-back:hover { text-decoration: underline; }
.nd-tag { font-size: 12px; padding: 4px 14px; border-radius: 14px; background: #f0f5ff; color: #1356C2; }
.nd-title { font-size: 30px; color: var(--text-title); line-height: 1.45; margin-bottom: 18px; font-weight: 700; }
.nd-meta { display: flex; gap: 24px; font-size: 13.5px; color: #94a3b3; margin-bottom: 22px; }
.nd-divider { height: 1px; background: linear-gradient(90deg, #1356C2, transparent); margin-bottom: 28px; }
.nd-content { font-size: 15.5px; color: var(--text-body); line-height: 2; }
.nd-content p { margin-bottom: 18px; }
.nd-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 40px; padding-top: 28px; border-top: 1px solid #eef0f3; }
.nd-pn { background: #f8fafc; border: 1px solid #eef0f3; border-radius: 12px; padding: 16px 20px; text-decoration: none; display: flex; flex-direction: column; gap: 8px; transition: .2s; }
.nd-pn:hover { border-color: #cfe0f5; background: #f0f5ff; }
.nd-pn.is-next { text-align: right; }
.nd-pn-label { font-size: 12px; color: #94a3b3; }
.nd-pn-title { font-size: 14.5px; color: var(--text-title); line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.nd-pn.is-empty { visibility: hidden; }

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: repeat(2, 1fr); }
  .about-stat-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .net-regions { grid-template-columns: repeat(2, 1fr); }
  .ofs-grid { grid-template-columns: 1fr; }
  .net-hub { grid-template-columns: 1fr; }
  .news-layout { grid-template-columns: 1fr; }
  .news-featured { grid-row: auto; }
}
@media (max-width: 768px) {
  .nav-actions { margin-left: auto; }
  .grid-4 { grid-template-columns: 1fr; }
  .feature-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-bottom-inner { flex-direction: column; text-align: center; }
  .about-stat-grid { grid-template-columns: repeat(2, 1fr); }
  .net-regions { grid-template-columns: 1fr; }
  .hero h1 { font-size: 30px; }
  .hero-stats { gap: 24px; }
  .sv-item { flex-direction: column; }
  .about-card { left: 0; }
  .tk-grid { grid-template-columns: repeat(2, 1fr); }
  .tk-metrics { grid-template-columns: 1fr; }
  .tk-axis { left: 7px; margin-left: 0; }
  .tk-node, .tk-node.right { width: 100%; margin-left: 0; padding: 0 0 18px 34px; }
  .tk-node .dot, .tk-node.right .dot { left: 0; right: auto; top: 14px; width: 16px; height: 16px; border-width: 3px; }
  .tk-node .conn { display: none; }
  .tk-card:before, .tk-node.right .tk-card:before { right: -1px; left: auto; }
  .news-layout { grid-template-columns: 1fr; }
  .nd-wrap { padding: 28px 22px; }
  .nd-title { font-size: 24px; }
  .nd-nav { grid-template-columns: 1fr; }
}

/* ============================================================
   登录 / 注册页美化（所有角色登录口统一）
   ============================================================ */
.auth-wrap {
  position: relative;
  padding: 64px 16px 90px;
  min-height: calc(100vh - 64px);
  display: flex;
  justify-content: center;
  align-items: center;
  background:
    radial-gradient(circle at 12% 18%, rgba(0,180,216,.14), transparent 42%),
    radial-gradient(circle at 88% 82%, rgba(255,138,0,.12), transparent 45%),
    radial-gradient(circle at 72% 8%, rgba(19,86,194,.08), transparent 40%),
    var(--bg-page);
}
.auth-card {
  width: 100%;
  max-width: 430px;
  border-radius: 20px;
  padding: 46px 42px 40px;
  box-shadow: 0 28px 70px rgba(11,45,78,.16);
  border: 1px solid #eef0f3;
  position: relative;
  overflow: hidden;
  background: #fff;
}
.auth-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--brand), var(--accent), var(--cta));
}
.auth-brand { display: flex; align-items: center; gap: 12px; justify-content: center; margin-bottom: 24px; }
.auth-logo { height: 44px; width: auto; }
.auth-brand-text { text-align: left; line-height: 1.3; }
.auth-brand-text b { font-size: 20px; color: var(--brand-dark); display: block; font-weight: 700; }
.auth-brand-text span { font-size: 12px; color: var(--text-muted); letter-spacing: 2px; }
.auth-card h2 { text-align: center; margin: 0 0 8px; font-size: 24px; font-weight: 700; color: var(--text-title); }
.auth-sub { text-align: center; color: var(--text-muted); font-size: 13px; margin: 0 0 30px; }
.auth-ref { margin: -14px 0 20px; padding: 9px 12px; border-radius: 8px; background: rgba(30,144,255,.06); border: 1px solid rgba(30,144,255,.16); color: #4b6b8f; font-size: 12px; line-height: 1.6; text-align: center; }
.auth-ref b { color: #1e6fd9; }
.auth-card .layui-form-item { margin-bottom: 20px; }
.auth-card .layui-input {
  height: 46px;
  border-radius: 10px;
  font-size: 15px;
  padding-left: 14px;
  border-color: #e5e9f0;
  transition: all .2s;
}
.auth-card .layui-input:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(19,86,194,.1); }
.auth-card .layui-btn-fluid {
  height: 48px;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 6px;
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  border: none;
}
.auth-card .layui-btn-fluid:hover { opacity: .92; }
.auth-card .auth-link { margin-top: 18px; }
.auth-test-box { margin-top: -2px; margin-bottom: 2px; }
.auth-test-box .layui-btn-normal {
  height: 44px;
  line-height: 44px;
  border-radius: 10px;
  font-size: 14px;
  border: 1px dashed var(--brand);
  background: rgba(19,86,194,.04);
  color: var(--brand);
  transition: all .2s;
}
.auth-test-box .layui-btn-normal:hover { background: rgba(19,86,194,.1); border-style: solid; }
.auth-test-tip { text-align: center; color: var(--text-muted); font-size: 12px; margin: 8px 0 0; }
.captcha-row img { height: 46px; border-radius: 10px; }

@media (max-width: 768px) {
  .auth-wrap { padding: 26px 16px 50px; align-items: flex-start; }
  .auth-card { padding: 34px 24px 30px; border-radius: 16px; }
  .auth-logo { height: 38px; }
  .auth-brand-text b { font-size: 18px; }
}

/* ============================================================
   首页美化增强（Hero / 导航 / 区块装饰 / 卡片动效）
   ============================================================ */
/* Hero 区增强 */
.hero { padding: 120px 0 90px; }
.hero-bg::after {
  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: 44px 44px;
  pointer-events: none;
}
.hero-tag {
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.28);
  backdrop-filter: blur(4px);
  padding: 8px 22px;
  border-radius: 24px;
  font-size: 14px;
  letter-spacing: 1px;
}
.hero h1 { font-size: 54px; font-weight: 800; letter-spacing: .5px; line-height: 1.25; margin-bottom: 20px; }
.hero-sub { font-size: 18px; letter-spacing: 1px; }
.hero-actions .btn-primary { background: linear-gradient(135deg, var(--cta), #f07c00); box-shadow: 0 8px 24px rgba(255,138,0,.4); }
.hero-stats { gap: 60px; margin-top: 10px; }
.hstat b { font-size: 36px; }
.hstat span { font-size: 14px; letter-spacing: 1px; }
.hstat { position: relative; }
.hstat + .hstat::before {
  content: ''; position: absolute; left: -30px; top: 50%; transform: translateY(-50%);
  height: 40px; width: 1px; background: rgba(255,255,255,.18);
}

/* section-head 标题下装饰线 */
.section-head h2 { position: relative; padding-bottom: 18px; }
.section-head h2::after {
  content: ''; position: absolute; left: 50%; transform: translateX(-50%);
  bottom: 0; width: 52px; height: 3px; border-radius: 2px;
  background: linear-gradient(90deg, var(--brand), var(--accent));
}

/* 核心业务卡片图标底色 */
.service-card .s-icon {
  width: 68px; height: 68px; border-radius: 18px;
  display: flex; align-items: center; justify-content: center;
  font-size: 34px; margin-bottom: 18px;
  background: linear-gradient(135deg, #eef4ff, #e6f9fd);
  transition: all .25s;
}
.service-card:hover .s-icon { transform: scale(1.06) rotate(-3deg); }
.service-card { border-radius: 16px; padding: 34px 28px; }

/* 导航毛玻璃 */
.site-header { background: rgba(255,255,255,.85); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }

/* 首页增强响应式 */
@media (max-width: 768px) {
  .hero { padding: 80px 0 60px; }
  .hero h1 { font-size: 32px; }
  .hero-sub { font-size: 15px; letter-spacing: 0; }
  .hero-stats { gap: 18px; }
  .hstat b { font-size: 26px; }
  .hstat + .hstat::before { display: none; }
  .section-head h2 { font-size: 24px; }
}

/* ============================================================
   订单查询页（/track）美化增强
   ============================================================ */
.track-hero {
  padding: 74px 0 54px;
  background: linear-gradient(160deg, #0A2A52 0%, #1356C2 70%, #1b6bd6 100%);
  position: relative;
  overflow: hidden;
}
.track-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: 40px 40px;
  pointer-events: none;
}
.track-hero::after {
  content: '';
  position: absolute; top: -90px; right: -70px; width: 300px; height: 300px;
  border-radius: 50%; background: rgba(0,180,216,.16);
}
.track-hero .container { position: relative; z-index: 1; }
.track-search { box-shadow: 0 20px 50px rgba(0,0,0,.22); }
.track-search button:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(0,0,0,.2); }

@media (max-width: 768px) {
  .track-hero { padding: 54px 0 40px; }
  .track-head h1 { font-size: 26px; letter-spacing: 1px; }
  .track-search { border-radius: 12px; padding: 6px; }
  .track-search input { height: 44px; font-size: 14px; }
  .track-search button { height: 44px; padding: 0 22px; font-size: 15px; }
}