:root{
            --primary:#0e4a5f;
            --primary-deep:#0a3847;
            --accent:#e8862e;
            --accent-hover:#d67623;
            --paper:#f5f1e8;
            --card-bg:#ffffff;
            --ink:#1f2e36;
            --muted:#56717e;
            --line:#e2e0d6;
            --hero-bg:linear-gradient(135deg,#0e4a5f 0%,#134f63 40%,#1b5f6b 100%);
            --shadow-sm:0 6px 16px rgba(0,0,0,.06);
            --shadow-lg:0 26px 50px -24px rgba(0,0,0,.2);
            --radius:22px;
            --radius-sm:14px;
        }
        *{margin:0;padding:0;box-sizing:border-box}
        body{
            font-family:'Microsoft Sans Serif','Microsoft YaHei','PingFang SC',sans-serif;
            background:var(--paper);
            color:var(--ink);
            line-height:1.6;
            scroll-behavior:smooth;
        }
        .container{max-width:1240px;margin:0 auto;padding:0 24px}
        .site-shell{background:var(--paper)}
        a{text-decoration:none;color:var(--primary)}
        img{display:block;max-width:100%}

        /* 顶部条 */
        .topbar{
            background:var(--primary-deep);
            color:rgba(255,255,255,.85);
            font-size:13px;
            padding:8px 0;
            border-bottom:1px solid rgba(255,255,255,.08);
        }
        .topbar__inner{
            display:flex;
            justify-content:space-between;
            flex-wrap:wrap;
            gap:4px 18px;
        }
        .topbar strong{color:#ffd5a8;font-weight:600}

        /* 头部导航 */
        .header{
            background:rgba(255,255,255,.92);
            backdrop-filter:blur(6px);
            border-bottom:1px solid var(--line);
            padding:16px 0;
            position:sticky;
            top:0;
            z-index:50;
        }
        .header__inner{
            display:flex;
            align-items:center;
            justify-content:space-between;
            flex-wrap:wrap;
            gap:18px;
        }
        .brand{
            display:flex;
            align-items:center;
            gap:12px;
            color:var(--ink);
        }
        .brand__mark{
            width:42px;
            height:42px;
            border-radius:12px;
            background:var(--primary);
            position:relative;
        }
        .brand__mark::before{
            content:"NTC";
            position:absolute;
            inset:0;
            display:flex;
            align-items:center;
            justify-content:center;
            color:#fff;
            font-size:12px;
            font-weight:700;
            letter-spacing:1px;
        }
        .brand__text strong{
            display:block;
            font-size:1.5rem;
            font-weight:800;
            letter-spacing:-.3px;
            color:var(--primary);
        }
        .brand__text span{
            font-size:.88rem;
            color:var(--muted);
        }
        .nav{
            display:flex;
            gap:22px;
            align-items:center;
            flex-wrap:wrap;
        }
        .nav a{
            color:var(--ink);
            font-weight:500;
            font-size:.95rem;
            padding:4px 0;
            border-bottom:2px solid transparent;
            transition:.2s;
        }
        .nav a:hover{
            color:var(--accent);
            border-color:var(--accent);
        }
        .nav .nav-phone{
            background:var(--accent);
            color:#fff;
            padding:8px 20px;
            border-radius:40px;
            border:none;
            font-weight:600;
            font-size:.95rem;
            display:inline-flex;
            align-items:center;
            gap:6px;
        }
        .nav .nav-phone:hover{
            background:var(--accent-hover);
            color:#fff;
            transform:scale(.98);
        }

        /* 首屏 hero */
        .hero{
            background:var(--hero-bg);
            color:#f2f6f8;
            padding:80px 0 70px;
            position:relative;
            overflow:hidden;
        }
        .hero::after{
            content:"⚡";
            font-size:340px;
            opacity:.05;
            position:absolute;
            right:-30px;
            bottom:-60px;
            pointer-events:none;
        }
        .hero-grid{
            display:grid;
            grid-template-columns:1.4fr .8fr;
            gap:50px;
            align-items:center;
            position:relative;
            z-index:2;
        }
        .eyebrow{
            display:inline-block;
            background:rgba(255,255,255,.14);
            border:1px solid rgba(255,255,255,.25);
            border-radius:40px;
            padding:5px 16px;
            font-size:.8rem;
            letter-spacing:1px;
            color:#e2a57a;
            font-weight:600;
            margin-bottom:22px;
            backdrop-filter:blur(2px);
        }
        .hero h1{
            font-size:3.2rem;
            font-weight:800;
            line-height:1.13;
            letter-spacing:-.5px;
            margin-bottom:20px;
            color:#fff;
        }
        .hero h1 em{
            font-style:normal;
            color:var(--accent);
        }
        .hero-copy>p{
            font-size:1.1rem;
            color:rgba(255,255,255,.85);
            max-width:640px;
            margin-bottom:32px;
        }
        .chip-row{
            display:flex;
            flex-wrap:wrap;
            gap:12px;
            margin-bottom:18px;
        }
        .chip{
            background:rgba(255,255,255,.1);
            border:1px solid rgba(255,255,255,.18);
            border-radius:40px;
            padding:6px 16px;
            font-size:.86rem;
            color:#e2e6e8;
            font-weight:500;
            backdrop-filter:blur(2px);
        }
        .keyword-row .chip{
            background:transparent;
            border-color:rgba(255,255,255,.18);
            font-size:.82rem;
            color:rgba(255,255,255,.7);
        }
        .hero-panel{
            background:rgba(255,255,255,.1);
            backdrop-filter:blur(8px);
            border:1px solid rgba(255,255,255,.15);
            border-radius:var(--radius);
            padding:32px 28px;
            box-shadow:var(--shadow-lg);
        }
        .metric-grid{
            display:grid;
            grid-template-columns:repeat(2,1fr);
            gap:20px;
            margin-bottom:26px;
        }
        .metric-grid__item{
            background:rgba(255,255,255,.08);
            border-radius:var(--radius-sm);
            padding:18px 14px;
            text-align:center;
        }
        .metric-grid__item strong{
            display:block;
            font-size:1.8rem;
            font-weight:800;
            color:#fff;
            line-height:1.2;
        }
        .metric-grid__item span{
            font-size:.78rem;
            color:rgba(255,255,255,.7);
        }
        .hero-contact{
            border-top:1px solid rgba(255,255,255,.18);
            padding-top:20px;
        }
        .hero-contact strong{
            font-size:1.1rem;
            color:#fff;
            display:block;
            margin-bottom:6px;
        }
        .hero-contact .phone-big{
            font-size:1.8rem;
            font-weight:800;
            color:var(--accent);
            letter-spacing:1px;
        }
        .hero-contact p{
            font-size:.9rem;
            color:rgba(255,255,255,.65);
            margin-top:10px;
            line-height:1.6;
        }

        /* 通用 section */
        .section{
            padding:78px 0;
        }
        .section-head{
            display:flex;
            align-items:baseline;
            justify-content:space-between;
            margin-bottom:40px;
            border-bottom:1px solid var(--line);
            padding-bottom:10px;
            flex-wrap:wrap;
            gap:8px;
        }
        .section-head h2{
            font-size:2rem;
            font-weight:800;
            color:var(--primary);
            letter-spacing:-.3px;
        }
        .section-head span{
            color:var(--muted);
            font-size:.85rem;
            letter-spacing:1px;
        }
        .surface-card{
            background:var(--card-bg);
            border-radius:var(--radius);
            padding:38px;
            box-shadow:var(--shadow-sm);
            border:1px solid rgba(255,255,255,.6);
        }
        .about-grid{
            display:grid;
            grid-template-columns:1.5fr 1fr;
            gap:46px;
            align-items:center;
        }
        .about-copy p{
            margin-bottom:18px;
            font-size:1rem;
            color:#2b3e48;
            text-align:justify;
        }
        .about-copy strong{
            color:var(--primary);
        }
        .about-figure img{
            border-radius:var(--radius-sm);
            aspect-ratio:4/3;
            object-fit:cover;
            width:100%;
            box-shadow:var(--shadow-sm);
        }
        .about-figure figcaption{
            text-align:center;
            font-size:.9rem;
            color:var(--muted);
            margin-top:12px;
            padding:8px 0;
            border-top:1px dashed var(--line);
        }

        /* 优势网格 */
        .strength-grid{
            display:grid;
            grid-template-columns:repeat(4,1fr);
            gap:24px;
        }
        .strength-card{
            background:var(--card-bg);
            border-radius:var(--radius-sm);
            padding:28px 20px;
            box-shadow:var(--shadow-sm);
            border:1px solid var(--line);
            transition:all .25s;
            text-align:center;
        }
        .strength-card:hover{
            transform:translateY(-6px);
            box-shadow:var(--shadow-lg);
            border-color:var(--accent);
        }
        .strength-card__emoji{
            font-size:2.4rem;
            margin-bottom:12px;
        }
        .strength-card h3{
            font-size:1.2rem;
            font-weight:700;
            color:var(--primary);
            margin-bottom:8px;
        }
        .strength-card p{
            font-size:.9rem;
            color:var(--muted);
        }

        /* 图集展示 */
        .gallery-stack{
            display:flex;
            flex-direction:column;
            gap:44px;
        }
        .gallery-group__title{
            font-size:1.4rem;
            font-weight:700;
            color:var(--primary);
            margin-bottom:22px;
            padding-left:14px;
            border-left:5px solid var(--accent);
        }
        .gallery-grid{
            display:grid;
            grid-template-columns:repeat(4,1fr);
            gap:22px;
        }
        .gallery-card{
            background:var(--card-bg);
            border-radius:var(--radius-sm);
            overflow:hidden;
            box-shadow:var(--shadow-sm);
            border:1px solid var(--line);
            transition:.25s;
        }
        .gallery-card:hover{
            box-shadow:var(--shadow-lg);
            transform:translateY(-4px);
        }
        .gallery-card img{
            aspect-ratio:1/1;
            object-fit:cover;
            width:100%;
        }
        .gallery-card p{
            padding:14px 12px;
            font-size:.9rem;
            font-weight:600;
            color:var(--ink);
            border-top:1px solid var(--line);
            background:#fbfaf7;
            text-align:center;
        }

        /* FAQ */
        .faq-grid{
            display:grid;
            grid-template-columns:repeat(2,1fr);
            gap:20px;
        }
        .faq-item{
            background:var(--card-bg);
            border-left:4px solid var(--accent);
            border-radius:var(--radius-sm);
            padding:24px 24px;
            box-shadow:var(--shadow-sm);
        }
        .faq-item h3{
            font-size:1.05rem;
            font-weight:700;
            color:var(--primary);
            margin-bottom:8px;
        }
        .faq-item p{
            font-size:.92rem;
            color:var(--muted);
        }

        /* CTA 面板 */
        .cta-panel{
            background:var(--hero-bg);
            border-radius:calc(var(--radius) * 1.2);
            padding:56px 50px;
            display:grid;
            grid-template-columns:1.4fr .8fr;
            gap:44px;
            color:#f2f6f8;
            position:relative;
            overflow:hidden;
        }
        .cta-panel::before{
            content:"";
            position:absolute;
            width:300px;
            height:300px;
            border-radius:50%;
            background:rgba(232,134,46,.2);
            filter:blur(50px);
            right:-50px;
            top:-30px;
        }
        .cta-copy .eyebrow{
            background:rgba(255,255,255,.14);
        }
        .cta-copy h2{
            font-size:2.1rem;
            font-weight:800;
            color:#fff;
            margin-bottom:14px;
        }
        .cta-copy p{
            color:rgba(255,255,255,.8);
            margin-bottom:18px;
        }
        .contact-list{
            list-style:none;
            display:flex;
            flex-direction:column;
            gap:8px;
        }
        .contact-list li{
            font-weight:500;
            color:#fff;
        }
        .cta-contact{
            background:rgba(255,255,255,.1);
            border:1px solid rgba(255,255,255,.2);
            backdrop-filter:blur(6px);
            border-radius:var(--radius);
            padding:30px;
            display:flex;
            flex-direction:column;
            gap:14px;
            position:relative;
            z-index:2;
        }
        .cta-contact strong{
            font-size:1.3rem;
            color:#fff;
        }
        .cta-contact .phone-big{
            font-size:2rem;
            font-weight:800;
            color:var(--accent);
            letter-spacing:1px;
        }
        .cta-contact__meta{
            border-top:1px solid rgba(255,255,255,.2);
            padding-top:14px;
            display:flex;
            flex-direction:column;
            gap:12px;
        }
        .cta-contact__meta div{
            display:flex;
            justify-content:space-between;
            align-items:center;
        }
        .cta-contact__meta span{
            color:rgba(255,255,255,.7);
            font-size:.9rem;
        }
        .cta-contact__meta strong{
            font-size:1rem;
            color:#ffd5a8;
        }

        /* 页脚 */
        .footer{
            background:#0f1c24;
            color:rgba(255,255,255,.68);
            padding:52px 0 34px;
            font-size:.92rem;
            margin-top:20px;
        }
        .footer__inner p{
            margin-bottom:10px;
            line-height:1.7;
        }
        .friend-links-row{
            border-top:1px solid rgba(255,255,255,.12);
            margin-top:30px;
            padding-top:26px;
        }
        .friend-links__inner{
            display:flex;
            flex-wrap:wrap;
            gap:10px 26px;
            font-size:.8rem;
            color:rgba(255,255,255,.55);
        }
        .friend-links__inner a{
            color:rgba(255,255,255,.55);
            transition:.2s;
            border-bottom:1px dotted rgba(255,255,255,.2);
            line-height:1.8;
        }
        .friend-links__inner a:hover{
            color:var(--accent);
        }

        /* 底部时间戳 */
        .timestamp{
            text-align:center;
            font-size:.78rem;
            color:var(--muted);
            padding:14px 0 0;
            border-top:1px solid var(--line);
            margin-top:30px;
            background:var(--paper);
        }

        /* 响应式 */
        @media(max-width:980px){
            .hero h1{font-size:2.4rem}
            .hero-grid{grid-template-columns:1fr}
            .about-grid{grid-template-columns:1fr}
            .strength-grid{grid-template-columns:repeat(2,1fr)}
            .gallery-grid{grid-template-columns:repeat(2,1fr)}
            .faq-grid{grid-template-columns:1fr}
            .cta-panel{grid-template-columns:1fr;padding:40px 28px}
            .nav{justify-content:center;margin-top:10px}
        }
        @media(max-width:560px){
            .section{padding:58px 0}
            .section-head h2{font-size:1.6rem}
            .strength-grid{grid-template-columns:1fr}
            .gallery-grid{grid-template-columns:1fr 1fr;gap:12px}
            .metric-grid{grid-template-columns:1fr 1fr}
            .brand__text strong{font-size:1.2rem}
        }
    

.friend-links-row{display:block !important;width:100%;margin:18px 0 0;clear:both;}
.friend-links{display:block !important;width:100%;box-sizing:border-box;}
.friend-links__inner{display:flex;flex-wrap:wrap;align-items:center;gap:6px 12px;width:100%;}
.friend-links__inner a{display:inline-block;font-size:12px;line-height:1.6;padding:0;color:inherit;text-decoration:none;opacity:.88;}
.friend-links__inner a:hover{text-decoration:underline;opacity:1;}
@media (max-width: 768px){
  .friend-links-row{margin-top:14px;}
  .friend-links__inner{gap:5px 10px;}
  .friend-links__inner a{font-size:11px;line-height:1.7;}
}