:root{
  --tk-ink:#123A5C;
  --tk-ink-deep:#0A1F33;
  --tk-ink-soft:#1B4B72;
  --tk-accent:#ff7a00;
  --tk-accent-2:#12A5A0;
  --tk-paper:#F6F4F0;
  --tk-paper-2:#ECE8E0;
  --tk-text:#26323B;
  --tk-text-soft:#5A6B77;
  --tk-line:#DFD8C9;
  --tk-white:#ffffff;
  --tk-shadow:0 6px 24px rgba(10,31,51,.10);
  --tk-radius:14px;
}
*{margin:0;padding:0;box-sizing:border-box;font-weight:400}
html{scroll-behavior:smooth}
body{font-family:"Microsoft YaHei",sans-serif;color:var(--tk-text);background:var(--tk-paper);line-height:1.7;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:"Microsoft YaHei",sans-serif;font-weight:400;line-height:1.35;color:var(--tk-ink-deep)}
a{color:var(--tk-ink-soft);text-decoration:none}
img{max-width:100%;display:block}
.tk-container{max-width:1360px;margin:0 auto;padding:0 20px}

/* ===== 顶部工具条 ===== */
.tk-topbar{background:var(--tk-ink-deep);color:#cfd9e0;font-size:12px}
.tk-topbar .tk-container{display:flex;justify-content:space-between;align-items:center;height:38px;flex-wrap:wrap}
.tk-topbar-links{display:flex;gap:22px}
.tk-topbar-links a{color:#cfd9e0;text-decoration:none}
.tk-topbar-links a:hover{color:var(--tk-accent)}
.tk-topbar-contact{color:#cfd9e0;display:flex;align-items:center;gap:7px}
.tk-topbar-contact svg{width:15px;height:15px;flex-shrink:0}

/* ===== 主导航 ===== */
.tk-site-header-fixed{position:sticky;top:0;z-index:100}
.tk-site-header{background:var(--tk-white);border-bottom:1px solid var(--tk-line);box-shadow:0 2px 12px rgba(10,31,51,.06)}
.tk-nav-wrap{display:flex;align-items:center;justify-content:space-between;height:76px}
.tk-logo{display:flex;align-items:center;gap:12px;cursor:pointer}
.tk-logo-badge{width:48px;height:48px;border-radius:50%;background:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0;overflow:hidden}
.tk-logo-badge img{width:100%;height:100%;object-fit:cover;display:block}
.tk-logo-text{display:flex;flex-direction:column;line-height:1.2;gap:5px}
.tk-logo-text b{font-family:"Microsoft YaHei",sans-serif;font-size:18px;color:var(--tk-ink-deep);letter-spacing:.5px;white-space:nowrap}
.tk-logo-text small{font-size:12px;color:var(--tk-accent);letter-spacing:2px}
.tk-nav-list{display:flex;align-items:center;gap:6px;list-style:none}
.tk-nav-list a{display:block;padding:10px 15px;font-size:16px;color:var(--tk-text);border-radius:8px;transition:.2s;white-space:nowrap;cursor:pointer}
.tk-nav-list a:hover{color:var(--tk-accent);background:var(--tk-paper-2)}
.tk-nav-list a.tk-active{color:var(--tk-ink);background:var(--tk-paper-2)}
.tk-nav-toggle{display:none;background:none;border:none;width:40px;height:40px;cursor:pointer;flex-direction:column;justify-content:center;gap:5px}
.tk-nav-toggle span{display:block;height:2px;background:var(--tk-ink-deep);width:24px;border-radius:2px}

/* ===== 视图切换 ===== */
.tk-view{display:none}
.tk-view.tk-active{display:block;animation:fadeIn .4s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* ===== 首页 Hero ===== */
.tk-hero{position:relative;color:#fff;overflow:hidden;background:var(--tk-ink-deep)}
.tk-hero-slides,.tk-hero-slide{position:absolute;inset:0}
.tk-hero-slide{background-size:cover;background-position:center;opacity:0;transition:opacity 1.1s ease;z-index:1}
.tk-hero-slide.tk-is-active{opacity:1}
.tk-hero-dots{position:absolute;right:20px;top:50%;transform:translateY(-50%);display:flex;flex-direction:column;align-items:center;gap:10px;z-index:4}
.tk-hero-dots button{width:10px;height:10px;border-radius:50%;border:1.5px solid rgba(255,255,255,.7);background:transparent;cursor:pointer;padding:0;box-sizing:border-box}
.tk-hero-dots button.tk-is-active{background:var(--tk-accent);border-color:var(--tk-accent)}
.tk-hero-mask{position:absolute;inset:0;z-index:2;background:linear-gradient(180deg,rgba(10,31,51,.82) 0%,rgba(10,31,51,.68) 45%,rgba(10,31,51,.74) 100%)}
.tk-hero-inner{position:relative;z-index:3;max-width:1200px;margin:0 auto;padding:44px 20px 48px 50px}
.tk-hero-kicker{display:inline-block;font-size:12px;letter-spacing:3px;color:var(--tk-accent);border:1px solid rgba(255,122,0,.55);padding:6px 14px;border-radius:30px;margin-bottom:24px}
.tk-hero h1{font-size:30px;color:#fff;max-width:680px;margin-bottom:20px}
.tk-hero h1 em{font-style:normal;color:var(--tk-accent)}
.tk-hero p{font-size:15px;color:rgba(255,255,255,.9);max-width:600px;margin-bottom:36px}
.tk-hero-stats{display:flex;gap:48px;margin-top:30px;flex-wrap:wrap}
.tk-hero-stat{display:flex;flex-direction:column}
.tk-hero-stat b{font-size:26px;color:var(--tk-accent);font-family:"Microsoft YaHei",sans-serif}
.tk-hero-stat span{font-size:12px;color:rgba(255,255,255,.82);letter-spacing:1px}

/* ===== 通用区块 ===== */
.tk-section{padding:58px 0}
.tk-section-head{text-align:center;max-width:760px;margin:0 auto 34px}
.tk-section-head .tk-tag{font-size:12px;letter-spacing:3px;color:var(--tk-accent);margin-bottom:12px}
.tk-section-head h2{font-size:24px;margin-bottom:14px}
.tk-section-head p{color:var(--tk-text-soft);font-size:15px}
.tk-section-alt{background:var(--tk-white)}

/* ===== 主营业务 ===== */
.tk-bu-head{text-align:center;max-width:760px;margin:0 auto 34px}
.tk-bu-head h2{font-size:24px;margin-bottom:14px}
.tk-bu-head p{color:var(--tk-text-soft);font-size:15px}
.tk-bu-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.tk-bu-card{background:var(--tk-white);border-radius:var(--tk-radius);overflow:hidden;box-shadow:var(--tk-shadow);border:1px solid var(--tk-line);display:flex;flex-direction:column;transition:.25s;cursor:pointer}
.tk-bu-card:hover{transform:translateY(-5px)}
.tk-bu-fig{height:176px;overflow:hidden}
.tk-bu-fig img{width:100%;height:100%;object-fit:cover}
.tk-bu-body{padding:24px 24px 28px;display:flex;flex-direction:column;flex:1}
.tk-bu-headline{display:flex;align-items:center;justify-content:center;gap:12px;margin-bottom:12px}
.tk-bu-headline .tk-bu-icon{width:52px;height:52px;flex-shrink:0;border-radius:13px;background:var(--tk-paper-2);display:flex;align-items:center;justify-content:center;color:var(--tk-ink)}
.tk-bu-headline .tk-bu-icon svg{width:26px;height:26px}
.tk-bu-headline h3{font-size:19px}
.tk-bu-body p{color:var(--tk-text-soft);font-size:14px;margin-bottom:18px;flex:1;text-indent:2em}
.tk-bu-more{font-size:13px;color:var(--tk-accent);cursor:pointer;display:inline-flex;align-items:center;gap:6px}
.tk-bu-more svg{width:14px;height:14px;transition:.2s}
.tk-bu-card:hover .tk-bu-more svg{transform:translateX(4px)}

/* ===== 服务优势 ===== */
.tk-adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tk-adv-item{background:var(--tk-paper);border:1px solid var(--tk-line);border-radius:var(--tk-radius);padding:28px 24px;display:flex;flex-direction:column;gap:12px}
.tk-adv-item .tk-adv-icon{width:52px;height:52px;flex-shrink:0;border-radius:13px;background:var(--tk-paper-2);display:flex;align-items:center;justify-content:center;color:var(--tk-ink)}
.tk-adv-item .tk-adv-icon svg{width:26px;height:26px}
.tk-adv-head{display:flex;align-items:center;justify-content:center;gap:12px}
.tk-adv-item h3{font-size:17px}
.tk-adv-item p{color:var(--tk-text-soft);font-size:14px}

/* ===== 合作流程 ===== */
.tk-step-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:22px}
.tk-step{text-align:center;position:relative;padding:0 6px}
.tk-step-num{width:48px;height:48px;margin:0 auto 16px;border-radius:50%;background:var(--tk-ink);color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;font-family:"Microsoft YaHei",sans-serif}
.tk-step h3{font-size:16px;margin-bottom:8px}
.tk-step p{color:var(--tk-text-soft);font-size:13px}

/* ===== 客户案例 ===== */
.tk-case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tk-case-card{background:var(--tk-white);border-radius:var(--tk-radius);box-shadow:var(--tk-shadow);border:1px solid var(--tk-line);padding:26px 24px}
.tk-case-card .tk-case-tag{display:block;width:100%;text-align:center;font-size:16px;color:var(--tk-ink);padding:8px 0;margin:0 0 20px;border:0;text-decoration:none;cursor:pointer;position:relative}
.tk-case-card .tk-case-tag:hover{color:var(--tk-accent)}
.tk-case-card .tk-case-tag::after{content:"";position:absolute;left:0;right:0;bottom:-10px;height:2px;background:var(--tk-accent)}
.tk-case-card h3{font-size:17px;margin-bottom:10px}
.tk-case-card h3::before{content:"";display:block;width:36px;height:2px;background:var(--tk-accent);border-radius:2px;margin-bottom:10px}
.tk-case-card p{color:var(--tk-text-soft);font-size:14px}
.tk-case-card .tk-case-items{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.tk-case-card .tk-case-items li{padding:0;display:flex;align-items:baseline;gap:10px}
.tk-case-card .tk-case-items .tk-case-date{font-size:13px;color:var(--tk-accent);flex-shrink:0}
.tk-case-card .tk-case-items li:hover h4 a{color:var(--tk-accent)}
.tk-case-card .tk-case-items h4{font-size:14px;color:var(--tk-ink);border-bottom:1px dashed var(--tk-line);padding-bottom:10px;margin-bottom:10px;flex:1}
.tk-case-card .tk-case-items h4 a{color:inherit;text-decoration:none;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tk-case-card .tk-case-items h4 a:hover{color:var(--tk-accent)}
.tk-case-card .tk-case-items p{font-size:13px;margin:0}

/* ===== CTA 横幅 ===== */
.tk-cta{background:linear-gradient(120deg,var(--tk-ink-deep) 0%,var(--tk-ink-soft) 100%);color:#fff;padding:38px 0}
.tk-cta .tk-container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:24px}
.tk-cta h2{color:#fff;font-size:24px;margin-bottom:8px}
.tk-cta p{color:rgba(255,255,255,.85);font-size:15px}
.tk-cta-btn{background:var(--tk-accent);color:#fff;padding:12px 30px;border-radius:30px;font-size:16px;cursor:pointer;transition:.2s;border:none}
.tk-cta-btn:hover{background:var(--tk-accent-2)}
a.tk-cta-btn{display:inline-block;text-align:center;line-height:1.5;text-decoration:none}

/* ===== 详情页 Hero(小标题条) ===== */
.tk-page-hero{background:var(--tk-ink-deep);color:#fff;position:relative;overflow:hidden}
.tk-page-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.28}
.tk-page-hero-mask{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,31,51,.5),rgba(10,31,51,.72))}
.tk-page-hero-inner{position:relative;z-index:2;max-width:1200px;margin:0 auto;padding:54px 20px}
.tk-page-hero .tk-tag{font-size:12px;letter-spacing:3px;color:var(--tk-accent);margin-bottom:12px}
.tk-page-hero h1{font-size:26px;color:#fff;margin-bottom:12px}
.tk-page-hero p{font-size:15px;color:rgba(255,255,255,.85);max-width:720px}

/* ===== 详情页正文 ===== */
.tk-page-body{padding:64px 0}
.tk-page-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.tk-page-grid + .tk-page-grid{margin-top:52px}
.tk-page-grid.tk-rev .tk-page-media{order:2}
.tk-page-media{border-radius:var(--tk-radius);overflow:hidden;box-shadow:var(--tk-shadow)}
.tk-page-media img{width:100%;height:100%;object-fit:cover}
.tk-page-txt h3{font-size:20px;margin-bottom:12px;display:flex;align-items:center;gap:10px}
.tk-page-txt h3 .tk-mini{width:30px;height:30px;flex-shrink:0;border-radius:8px;background:linear-gradient(135deg,var(--tk-ink),var(--tk-accent));display:flex;align-items:center;justify-content:center;color:#fff}
.tk-page-txt h3 .tk-mini svg{width:16px;height:16px}
.tk-page-txt p{color:var(--tk-text-soft);font-size:15px;margin-bottom:14px}
.tk-spec-list{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:8px}
.tk-spec-item{display:flex;gap:10px;align-items:center;font-size:14px;color:var(--tk-text)}
.tk-spec-item svg{width:18px;height:18px;flex-shrink:0;color:var(--tk-accent)}

/* ===== 关于 ===== */
.tk-about-wrap{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.tk-about-media{border-radius:var(--tk-radius);overflow:hidden;box-shadow:var(--tk-shadow)}
.tk-about-media img{width:100%;height:100%;object-fit:cover}
.tk-about-body .tk-tag{font-size:12px;letter-spacing:3px;color:var(--tk-accent);margin-bottom:12px;display:flex;align-items:center;gap:8px}
.tk-about-body .tk-tag svg{width:16px;height:16px;fill:none;stroke:var(--tk-accent);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex:none}
.tk-about-body h2{font-size:24px;margin-bottom:18px}
.tk-about-body p{color:var(--tk-text-soft);font-size:15px;margin-bottom:14px}
.tk-about-body.tk-indent p{text-indent:2em}
.tk-milestone{margin-top:34px}
.tk-milestone h3{font-size:17px;margin-bottom:16px}
.tk-milestone-list{display:flex;flex-direction:column;gap:12px}
.tk-milestone-item{display:flex;gap:14px;align-items:flex-start}
.tk-milestone-item b{color:var(--tk-accent);font-family:"Microsoft YaHei",sans-serif;min-width:64px}
.tk-milestone-item span{color:var(--tk-text-soft);font-size:14px}

/* ===== 联系 ===== */
.tk-contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.tk-contact-info .tk-c-item{display:flex;gap:14px;align-items:flex-start;margin-bottom:24px}
.tk-c-item .tk-c-icon{width:44px;height:44px;flex-shrink:0;border-radius:11px;background:var(--tk-paper-2);display:flex;align-items:center;justify-content:center;color:var(--tk-ink)}
.tk-c-item .tk-c-icon svg{width:20px;height:20px}
.tk-c-item h3{font-size:16px;margin-bottom:4px}
.tk-c-item p{color:var(--tk-text-soft);font-size:14px}
.tk-contact-form{background:var(--tk-white);border-radius:var(--tk-radius);box-shadow:var(--tk-shadow);border:1px solid var(--tk-line);padding:30px}
.tk-contact-form h3{font-size:18px;margin-bottom:20px}
.tk-form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
.tk-form-row.tk-one{grid-template-columns:1fr}
.tk-field label{display:block;font-size:13px;color:var(--tk-text-soft);margin-bottom:6px}
.tk-field input,.tk-field textarea{width:100%;padding:11px 12px;border:1px solid var(--tk-line);border-radius:8px;font-family:"Microsoft YaHei",sans-serif;font-size:14px;background:var(--tk-paper);color:var(--tk-text);outline:none}
.tk-field input:focus,.tk-field textarea:focus{border-color:var(--tk-accent)}
.tk-field textarea{height:110px;resize:vertical}
.tk-form-btn{background:var(--tk-accent);color:#fff;border:none;padding:12px 30px;border-radius:8px;font-size:15px;cursor:pointer;transition:.2s}
.tk-form-btn:hover{background:var(--tk-accent-2)}

/* ===== 新闻资讯 ===== */
.tk-news-list{max-width:880px;margin:0 auto}
.tk-news-item{padding:24px 0;border-bottom:1px solid var(--tk-line)}
.tk-news-item:last-child{border-bottom:none}
.tk-news-date{font-size:13px;color:var(--tk-accent);margin-bottom:6px}
.tk-news-item h3{font-size:18px;margin-bottom:8px}
.tk-news-item p{color:var(--tk-text-soft);font-size:14px}

/* ===== 页脚 ===== */
.tk-footer{background:var(--tk-ink-deep);color:#aebdcc;padding:54px 0 0;font-size:14px}
.tk-footer-grid{display:grid;grid-template-columns:1.4fr 0.8fr 0.8fr 0.8fr 1.4fr;gap:32px;padding-bottom:40px}
.tk-footer h4{color:#fff;font-size:16px;margin-bottom:16px}
.tk-footer p{color:#aebdcc;font-size:13px;line-height:1.9}
.tk-footer-link{display:flex;flex-direction:column;gap:10px}
.tk-footer-link a{color:#aebdcc;font-size:14px;cursor:pointer}
.tk-footer-link a:hover{color:var(--tk-accent)}
.tk-footer-contact{display:flex;flex-direction:column;gap:10px;color:#aebdcc;font-size:14px}
.tk-footer-contact span{display:flex;align-items:center;gap:8px}
.tk-footer-contact svg{width:15px;height:15px;color:var(--tk-accent);flex-shrink:0}
.tk-footer-links{display:flex;flex-wrap:wrap;align-items:center;gap:6px 16px;padding:16px 0;border-top:1px solid rgba(255,255,255,.12);color:#aebdcc;font-size:14px}
.tk-footer-links a{color:#aebdcc;text-decoration:none;cursor:pointer}
.tk-footer-links a:hover{color:var(--tk-accent)}
.tk-footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;text-align:center;font-size:12px;color:#8a9aab}

/* ===== 响应式 ===== */
@media (max-width:960px){
  .tk-bu-grid,.tk-adv-grid,.tk-case-grid{grid-template-columns:1fr 1fr}
  .tk-step-grid{grid-template-columns:repeat(3,1fr);row-gap:26px}
  .tk-footer-grid{grid-template-columns:1fr 1fr}
  .tk-page-grid,.tk-about-wrap,.tk-contact-grid{grid-template-columns:1fr}
  .tk-page-grid.tk-rev .tk-page-media{order:0}
  .tk-nav-toggle{display:flex}
  .tk-nav-list{position:absolute;top:76px;left:0;right:0;background:var(--tk-white);flex-direction:column;align-items:flex-start;padding:14px 20px 20px;gap:4px;border-bottom:1px solid var(--tk-line);box-shadow:0 8px 20px rgba(10,31,51,.08);display:none}
  .tk-nav-list.tk-open{display:flex}
  .tk-nav-list a{width:100%;padding:12px 10px}
  .tk-hero h1{font-size:24px}
  .tk-spec-list{grid-template-columns:1fr}
}
@media (max-width:600px){
  .tk-bu-grid,.tk-adv-grid,.tk-case-grid{grid-template-columns:1fr}
  .tk-step-grid{grid-template-columns:1fr 1fr}
  .tk-hero-stats{gap:24px}
  .tk-form-row{grid-template-columns:1fr}
  .tk-topbar .tk-container{flex-direction:column;align-items:center;justify-content:center;height:auto;gap:4px;padding:8px 20px;text-align:center}
  .tk-topbar-links{display:flex;flex-wrap:wrap;justify-content:center;gap:12px}
  .tk-topbar-contact{justify-content:center}
}

/* ===== 整站统一 hover 效果 ===== */
.tk-bu-card,.tk-adv-item,.tk-case-card,.tk-step{transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease,color .25s ease}
.tk-bu-card:hover,.tk-adv-item:hover,.tk-case-card:hover,.tk-step:hover{transform:translateY(-5px);box-shadow:0 14px 30px rgba(9,20,60,.12);border-color:#ff7a00}
.tk-bu-card:hover .tk-bu-headline h3,.tk-bu-card:hover .tk-bu-icon,.tk-adv-item:hover h3,.tk-adv-item:hover .tk-adv-icon,.tk-case-card:hover .tk-case-tag,.tk-step:hover h3{color:#ff7a00}
.tk-btn:hover,.tk-cta-btn:hover,.tk-form-btn:hover,.tk-send-btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(9,20,60,.14);border-color:#ff7a00}
.tk-footer-link a:hover,.tk-topbar-links a:hover{color:#ff7a00}

/* =====================================================
   页面级样式：解决方案页 / 专题页共用
   选择器统一使用 tk- 前缀
   ===================================================== */

/* ===== 解决方案页 ===== */
.tk-case-card h3::before{display:none}
.tk-case-card .tk-case-tag{font-size:17px}
.tk-solution-layout{display:grid;grid-template-columns:260px 1fr;gap:34px;align-items:start}
.tk-solution-layout .tk-case-card{scroll-margin-top:130px;display:block;text-decoration:none;color:inherit}

/* ===== 左侧两卡片导航（解决方案页 / 专题页共用） ===== */
.tk-solution-aside{display:flex;flex-direction:column;gap:20px;position:sticky;top:130px;max-height:calc(100vh - 150px);overflow:auto}
.tk-side-card{background:var(--tk-white);border:1px solid var(--tk-line);border-radius:14px;box-shadow:0 10px 26px rgba(15,35,55,.12);padding:24px 18px;transition:transform .25s,box-shadow .25s}
.tk-side-card:hover{transform:translateY(-5px);box-shadow:0 18px 34px rgba(15,35,55,.18)}
.tk-side-card h3{font-size:17px;margin:0 0 14px;padding-bottom:12px;display:flex;align-items:center;justify-content:center;gap:8px;color:var(--tk-ink);border-bottom:1px solid var(--tk-line)}
.tk-side-card h3 svg{width:19px;height:19px;color:var(--tk-accent);flex-shrink:0}
.tk-side-card nav{display:flex;flex-direction:column;gap:6px}
.tk-side-card nav a{display:flex;align-items:center;gap:10px;padding:11px 14px;border-radius:8px;color:var(--tk-text);font-size:14px;text-decoration:none;transition:.2s}
.tk-side-card nav a svg{width:16px;height:16px;color:var(--tk-accent);flex-shrink:0}
.tk-side-card nav a:hover{background:var(--tk-paper-2);color:var(--tk-accent)}
.tk-side-card nav a.tk-side-active{background:linear-gradient(135deg,var(--tk-ink),var(--tk-accent));color:#fff}
.tk-side-card nav a.tk-side-active svg{color:#fff}

/* ===== 专题页：左侧业务导航 + 右侧内容 ===== */
.tk-topic-wrap{display:flex;gap:24px;padding:60px 0}
.tk-topic-side{width:260px !important;flex-shrink:0 !important;min-width:260px !important;max-width:260px !important}
.tk-topic-nav{background:#fff;border:1px solid var(--tk-line);border-radius:12px;overflow:hidden;position:sticky;top:160px;box-shadow:0 6px 20px rgba(15,35,55,.05)}
.tk-topic-nav-title{padding:14px 20px;font-size:16px;letter-spacing:2px;color:#fff;border-bottom:1px solid var(--tk-line);background:var(--tk-accent);text-align:center}
.tk-topic-nav a{display:flex;align-items:center;gap:10px;padding:16px 20px;color:var(--tk-text);border-bottom:1px solid var(--tk-line);transition:.2s;font-size:15px;text-decoration:none}
.tk-topic-nav a:last-child{border-bottom:0}
.tk-topic-nav a:hover{color:var(--tk-accent);padding-left:26px}
.tk-topic-nav a.tk-on{background:none;color:var(--tk-accent)}
.tk-topic-main{flex:1 1 0% !important;min-width:0 !important;max-width:none !important;width:auto !important;flex-grow:1 !important}
.tk-topic-block{margin-bottom:46px;display:block !important;width:100% !important;max-width:none !important}
.tk-topic-block h3{font-size:22px;margin-bottom:8px;display:flex;align-items:center;gap:10px;justify-content:center;text-align:center}
.tk-topic-block h3 .tk-mini{color:var(--tk-accent)}
.tk-topic-block>p{display:block !important;width:100% !important;max-width:none !important;margin-left:0 !important;margin-right:0 !important;color:var(--tk-text-soft);font-size:15px;line-height:1.9;margin-bottom:24px;text-align:center;border-bottom:1px solid var(--tk-line);padding-bottom:24px}
.tk-svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.tk-ind-grid .tk-svc-card{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:14px;text-align:center}
.tk-ind-grid .tk-svc-ico{margin-bottom:0;flex-shrink:0}
.tk-ind-grid .tk-svc-card p{flex:1 1 100%}
.tk-svc-card{background:#fff;border:1px solid var(--tk-line);border-radius:12px;padding:24px;transition:.25s}
.tk-svc-card:hover{transform:translateY(-4px);border-color:var(--tk-accent);box-shadow:0 10px 24px rgba(15,35,55,.08)}
.tk-svc-card .tk-svc-ico{width:46px;height:46px;border-radius:10px;background:var(--tk-paper-2);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.tk-svc-card .tk-svc-ico svg{width:24px;height:24px;color:var(--tk-accent)}
.tk-svc-card h4{font-size:17px;margin-bottom:10px}
.tk-svc-card p{color:var(--tk-text-soft);font-size:14px;line-height:1.8}
.tk-flow{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;counter-reset:step}
.tk-flow-item{background:#fff;border:1px solid var(--tk-line);border-radius:12px;padding:20px 14px;position:relative;display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:8px;transition:.25s}
.tk-flow-item::before{counter-increment:step;content:counter(step,decimal-leading-zero);width:30px;height:30px;line-height:30px;border-radius:50%;background:var(--tk-ink);color:#fff;font-size:14px;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}
.tk-flow-item h4{font-size:15px;margin-bottom:0}
.tk-flow-item p{color:var(--tk-text-soft);font-size:13px;line-height:1.7;flex:1 1 100%;margin-top:6px}
.tk-flow-item:hover{transform:translateY(-4px);border-color:var(--tk-accent);box-shadow:0 10px 24px rgba(15,35,55,.08)}
.tk-adv-list{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.tk-adv-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px;background:#fff;border:1px solid var(--tk-line);border-radius:12px;padding:20px;text-align:center;transition:.25s}
.tk-adv-row .tk-adv-ico{width:40px;height:40px;border-radius:10px;background:var(--tk-paper-2);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.tk-adv-row .tk-adv-ico svg{width:22px;height:22px;color:var(--tk-accent)}
.tk-adv-row h4{font-size:16px;margin-bottom:0}
.tk-adv-row p{color:var(--tk-text-soft);font-size:14px;line-height:1.8;flex:1 1 100%;margin-top:6px}
.tk-adv-row:hover{transform:translateY(-4px);border-color:var(--tk-accent);box-shadow:0 10px 24px rgba(15,35,55,.08)}
.tk-stack{display:flex;flex-wrap:wrap;gap:12px}
.tk-stack span{background:var(--tk-paper-2);border:1px solid var(--tk-line);color:var(--tk-text);font-size:14px;padding:9px 18px;border-radius:30px;transition:.25s}
.tk-stack span b{color:var(--tk-accent);font-weight:600}
.tk-stack span:hover{background:var(--tk-accent);border-color:var(--tk-accent);color:#fff}
.tk-stack span:hover b{color:#fff}

/* ===== 响应式 ===== */
@media (max-width:960px){
  .tk-topic-wrap{flex-direction:column;padding:40px 0}
  .tk-topic-side{width:100%}
  .tk-topic-nav{position:static;display:flex;flex-wrap:wrap}
  .tk-topic-nav a{border-bottom:0;border-right:1px solid var(--tk-line)}
  .tk-topic-nav-title{width:100%}
  .tk-svc-grid{grid-template-columns:1fr 1fr}
  .tk-flow{grid-template-columns:repeat(2,1fr)}
  .tk-adv-list{grid-template-columns:1fr}
  .tk-solution-aside{position:static;width:auto;top:auto;left:auto;max-height:none;overflow:visible}
}
@media (max-width:860px){
  .tk-solution-layout{grid-template-columns:1fr}
  .tk-solution-aside{position:static;width:auto;top:auto;left:auto;max-height:none;overflow:visible}
}
@media (max-width:600px){
  .tk-svc-grid{grid-template-columns:1fr}
}





/* =====================================================
   新闻列表页：新闻卡片（tk- 前缀）
   ===================================================== */
.tk-news-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr;gap:16px}
.tk-news-card{background:var(--tk-white);border:1px solid var(--tk-line);border-radius:14px;padding:18px 20px;box-shadow:0 6px 18px rgba(15,35,55,.05);transition:.25s;display:flex;flex-direction:column}
.tk-news-card:hover{transform:translateY(-4px);border-color:var(--tk-accent);box-shadow:0 12px 26px rgba(15,35,55,.10)}
.tk-news-title{font-size:16px;margin:0 0 8px;font-weight:600}
.tk-news-title a{color:var(--tk-ink);text-decoration:none;transition:.2s}
.tk-news-title a:hover{color:var(--tk-accent)}
.tk-news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:8px;font-size:13px;color:var(--tk-text-soft)}
.tk-news-meta span{display:inline-flex;align-items:center;gap:5px}
.tk-news-meta svg{width:14px;height:14px;color:var(--tk-text-soft)}
.tk-news-date{font-variant-numeric:tabular-nums}
.tk-news-cat{color:var(--tk-accent);background:var(--tk-paper-2);border:1px solid var(--tk-line);border-radius:6px;padding:2px 9px;font-size:12px}
.tk-news-views{color:var(--tk-text-soft)}
.tk-news-desc{margin:0;color:var(--tk-text-soft);font-size:14px;line-height:1.7}
@media (max-width:700px){
  .tk-news-list{grid-template-columns:1fr}
}
@media (max-width:600px){
  .tk-news-meta{gap:8px;font-size:12px}
}

/* =====================================================
   新闻内容页：正文排版（tk- 前缀）
   ===================================================== */
.tk-article{background:var(--tk-white);border:1px solid var(--tk-line);border-radius:14px;padding:30px 32px;box-shadow:0 6px 18px rgba(15,35,55,.05)}
.tk-article-title{font-size:24px;margin:0 0 16px;color:var(--tk-ink);line-height:1.4;text-align:center}
.tk-article-meta{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:12px;font-size:13px;color:var(--tk-text-soft);padding-bottom:18px;margin-bottom:22px;border-bottom:1px solid var(--tk-line)}
.tk-article-meta span{display:inline-flex;align-items:center;gap:5px}
.tk-article-meta svg{width:14px;height:14px;color:var(--tk-text-soft)}
.tk-article-date{font-variant-numeric:tabular-nums}
.tk-article-keyword{color:var(--tk-text-soft)}
.tk-article-body p{margin:0 0 16px;color:var(--tk-text);font-size:15px;line-height:1.9;text-align:justify}
.tk-article-body h4{font-size:17px;margin:24px 0 12px;color:var(--tk-ink);display:flex;align-items:center;gap:8px}
.tk-article-body h4::before{content:"";width:4px;height:16px;background:var(--tk-accent);border-radius:2px;flex-shrink:0}
@media (max-width:600px){
  .tk-article{padding:20px 18px}
  .tk-article-title{font-size:20px}
  .tk-article-body p{font-size:14px}
}

/* =====================================================
   首页公司简介：认证标签（tk- 前缀）
   ===================================================== */
.tk-about-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:18px}
.tk-about-tag{display:inline-flex;align-items:center;gap:7px;background:linear-gradient(135deg,var(--tk-accent),var(--tk-ink));color:#fff;font-size:14px;font-weight:500;padding:8px 18px;border-radius:30px;box-shadow:0 6px 16px rgba(15,35,55,.15)}
.tk-about-tag svg{width:15px;height:15px;color:#fff;flex-shrink:0}
/* ===== 关于我们页面定制 ===== */
.tk-adv-grid .tk-adv-item{flex-direction:row;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px 12px;text-align:center}
.tk-adv-grid .tk-adv-item .tk-adv-icon{margin-bottom:0}
.tk-adv-grid .tk-adv-item .tk-adv-head{margin-bottom:0}
.tk-adv-grid .tk-adv-item p{flex:1 1 100%}
.tk-svc-grid .tk-svc-card{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px 12px;text-align:center}
.tk-svc-grid .tk-svc-card .tk-svc-ico{margin-bottom:0;flex-shrink:0}
.tk-svc-grid .tk-svc-card h4{margin-bottom:0}
.tk-svc-grid .tk-svc-card p{flex:1 1 100%}
.tk-flow .tk-flow-item{text-align:center}

/* 关于我们 - 公司资质卡片 */
.tk-qual-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px}
.tk-qual-card{background:#fff;border:1px solid var(--tk-line);border-radius:12px;overflow:hidden;transition:.25s}
.tk-qual-card:hover{transform:translateY(-4px);box-shadow:0 10px 24px rgba(15,35,55,.08);border-color:var(--tk-accent)}
.tk-qual-img{aspect-ratio:210/297;background:var(--tk-paper-2);display:flex;align-items:center;justify-content:center;color:var(--tk-text-soft);font-size:14px}
.tk-qual-body{padding:18px;text-align:center}
.tk-qual-body p{color:var(--tk-text-soft);font-size:13px;line-height:1.7;margin:0}

/* 新闻详情页 - 上一篇下一篇 */
.tk-prevnext{display:flex;justify-content:space-between;gap:20px;margin-top:40px;padding-top:24px;border-top:1px solid var(--tk-line)}
.tk-prevnext>div{flex:1;font-size:14px;line-height:1.6}
.tk-prevnext span{color:var(--tk-text-soft);flex-shrink:0}
.tk-prevnext a{color:var(--tk-ink);text-decoration:none;transition:.2s}
.tk-prevnext a:hover{color:var(--tk-accent)}
.tk-next{text-align:right}

/* 新闻列表 - 分页 */
.tk-pagebar{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:36px}
.tk-page-btn{display:inline-flex;align-items:center;justify-content:center;min-width:38px;height:38px;padding:0 12px;border:1px solid var(--tk-line);border-radius:8px;color:var(--tk-ink);text-decoration:none;font-size:14px;transition:.2s}
.tk-page-btn:hover{border-color:var(--tk-accent);color:var(--tk-accent)}
.tk-page-btn.active{background:var(--tk-accent);border-color:var(--tk-accent);color:#fff}
.tk-page-dots{color:var(--tk-text-soft);padding:0 4px}
.tk-page-next{display:inline-flex;align-items:center;justify-content:center;height:38px;padding:0 16px;border:1px solid var(--tk-line);border-radius:8px;color:var(--tk-ink);text-decoration:none;font-size:14px;transition:.2s}
.tk-page-next:hover{border-color:var(--tk-accent);color:var(--tk-accent)}

/* 新闻列表 - 分页（适配帝国CMS默认输出） */
.tk-pagebar{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:6px;margin-top:36px;font-size:14px;color:var(--tk-text-soft)}
.tk-pagebar a{display:inline-flex;align-items:center;justify-content:center;min-width:36px;height:36px;padding:0 10px;border:1px solid var(--tk-line);border-radius:8px;color:var(--tk-ink);text-decoration:none;transition:.2s}
.tk-pagebar a:hover{border-color:var(--tk-accent);color:var(--tk-accent)}
.tk-pagebar strong{display:inline-flex;align-items:center;justify-content:center;min-width:36px;height:36px;padding:0 10px;border-radius:8px;background:var(--tk-accent);color:#fff}
.tk-pagebar select{height:36px;padding:0 8px;border:1px solid var(--tk-line);border-radius:8px;font-size:14px;color:var(--tk-ink);background:#fff;cursor:pointer;outline:none}
.tk-pagebar select:focus{border-color:var(--tk-accent)}

/* 帝国CMS分页链接美化 */
.tk-pagebar{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:6px;margin-top:36px;font-size:14px;color:var(--tk-text-soft)}
.tk-pagebar a{display:inline-flex;align-items:center;justify-content:center;min-width:36px;height:36px;padding:0 12px;border:1px solid var(--tk-line);border-radius:8px;color:var(--tk-ink);text-decoration:none;transition:.2s;background:#fff}
.tk-pagebar a:hover{border-color:var(--tk-accent);color:var(--tk-accent)}
.tk-pagebar strong{display:inline-flex;align-items:center;justify-content:center;min-width:36px;height:36px;padding:0 12px;border-radius:8px;background:var(--tk-accent);color:#fff;font-weight:400}
.tk-pagebar span{display:inline-flex;align-items:center;height:36px;padding:0 4px;color:var(--tk-text-soft)}
.tk-pagebar select{height:36px;padding:0 8px;border:1px solid var(--tk-line);border-radius:8px;font-size:14px;color:var(--tk-ink);background:#fff;cursor:pointer;outline:none}
.tk-pagebar select:focus{border-color:var(--tk-accent)}