:root {
        --primary: #1d5c8f;
        --primary-deep: #123c5e;
        --primary-soft: #eef5fa;
        --secondary: #e07830;
        --secondary-hover: #c9641f;
        --bg: #f7fafc;
        --bg-alt: #ffffff;
        --border: #d7e3ec;
        --text: #1e2b36;
        --text-muted: #5b6b79;
        --heading: #102a3c;
        --radius: 20px;
        --shadow-card: 0 8px 24px rgba(29, 92, 143, 0.06);
        --shadow-hover: 0 18px 40px rgba(29, 92, 143, 0.12);
    }
    * { margin: 0; padding: 0; box-sizing: border-box; }
    html { scroll-behavior: smooth; }
    body {
        font-family: "Microsoft Sans Serif", "Microsoft YaHei", "PingFang SC", sans-serif;
        background: var(--bg);
        color: var(--text);
        line-height: 1.6;
    }
    .container { max-width: 1280px; margin: 0 auto; padding: 0 24px; width: 100%; }
    a { text-decoration: none; color: inherit; }
    img { max-width: 100%; display: block; }
    .site-shell { overflow: hidden; }

    /* ===== Topbar ===== */
    .topbar {
        background: var(--primary-deep);
        color: rgba(255,255,255,0.88);
        font-size: 0.82rem;
        padding: 8px 0;
        letter-spacing: 0.3px;
    }
    .topbar__inner {
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 16px;
        flex-wrap: wrap;
    }

    /* ===== Header ===== */
    .header {
        background: rgba(255,255,255,0.96);
        backdrop-filter: blur(4px);
        box-shadow: 0 1px 6px rgba(16,42,60,0.06);
        position: sticky;
        top: 0;
        z-index: 100;
        border-bottom: 1px solid var(--border);
    }
    .header__inner {
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 24px;
        padding: 14px 0;
        flex-wrap: wrap;
    }
    .brand {
        display: flex;
        align-items: center;
        gap: 12px;
    }
    .brand__mark {
        width: 10px;
        height: 42px;
        background: repeating-linear-gradient(135deg, var(--primary) 0 6px, var(--secondary) 6px 12px);
        border-radius: 4px;
        flex-shrink: 0;
    }
    .brand__text {
        display: flex;
        flex-direction: column;
    }
    .brand__text strong {
        font-size: 1.4rem;
        font-weight: 800;
        color: var(--heading);
        letter-spacing: -0.3px;
        line-height: 1.15;
    }
    .brand__text span {
        font-size: 0.82rem;
        color: var(--text-muted);
        letter-spacing: 0.5px;
    }
    .nav {
        display: flex;
        align-items: center;
        gap: 22px;
        flex-wrap: wrap;
    }
    .nav a {
        font-size: 0.92rem;
        font-weight: 600;
        color: var(--text);
        padding: 6px 0;
        border-bottom: 2px solid transparent;
        transition: 0.2s;
    }
    .nav a:hover {
        color: var(--primary);
        border-color: var(--primary);
    }
    .nav .btn-about {
        background: var(--primary);
        color: #fff;
        padding: 6px 18px;
        border-radius: 40px;
        border-bottom: none;
    }
    .nav .btn-about:hover {
        background: var(--primary-deep);
        color: #fff;
    }

    /* ===== Hero ===== */
    .hero {
        padding: 60px 0 70px;
        background: linear-gradient(150deg, #e8f1f8 0%, #f9fcfd 55%, #f3f0e9 100%);
        position: relative;
        border-bottom: 1px solid var(--border);
    }
    .hero:before {
        content: "🏭";
        position: absolute;
        right: 3%;
        bottom: 8%;
        font-size: 130px;
        opacity: 0.05;
        transform: rotate(-8deg);
        pointer-events: none;
    }
    .hero:after {
        content: "⚙️";
        position: absolute;
        left: 2%;
        bottom: 14%;
        font-size: 90px;
        opacity: 0.05;
        transform: rotate(14deg);
        pointer-events: none;
    }
    .hero-grid {
        display: grid;
        grid-template-columns: 1.1fr 0.9fr;
        gap: 42px;
        align-items: center;
        position: relative;
        z-index: 2;
    }
    .hero-copy .eyebrow {
        display: inline-block;
        background: var(--secondary);
        color: #fff;
        font-size: 0.78rem;
        font-weight: 700;
        letter-spacing: 1px;
        padding: 5px 16px;
        border-radius: 40px;
        margin-bottom: 12px;
    }
    .hero-copy h1 {
        font-size: 2.6rem;
        font-weight: 800;
        color: var(--heading);
        line-height: 1.2;
        margin-bottom: 12px;
        letter-spacing: -0.5px;
    }
    .hero-copy h1 .city {
        color: var(--primary);
        position: relative;
    }
    .hero-copy p {
        font-size: 1.02rem;
        color: var(--text-muted);
        margin-bottom: 18px;
        max-width: 640px;
    }
    .chip-row {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin: 8px 0 6px;
    }
    .chip {
        background: rgba(255,255,255,0.8);
        border: 1px solid var(--border);
        padding: 6px 16px;
        border-radius: 40px;
        font-size: 0.82rem;
        font-weight: 500;
        color: var(--text);
        backdrop-filter: blur(2px);
    }
    .chip strong { color: var(--primary); }
    .keyword-row {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin-top: 10px;
    }
    .keyword-chip {
        background: var(--primary-soft);
        color: var(--primary-deep);
        font-size: 0.78rem;
        padding: 4px 12px;
        border-radius: 6px;
        border-left: 2px solid var(--primary);
        font-weight: 500;
    }
    .hero-panel {
        background: rgba(255,255,255,0.9);
        backdrop-filter: blur(6px);
        border: 1px solid rgba(255,255,255,0.4);
        border-radius: var(--radius);
        padding: 28px;
        box-shadow: 0 18px 38px rgba(16,42,60,0.08);
        position: relative;
    }
    .metric-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
        margin-bottom: 18px;
    }
    .metric {
        background: var(--bg);
        border: 1px solid var(--border);
        border-radius: 14px;
        padding: 12px 14px;
        text-align: center;
    }
    .metric strong {
        display: block;
        font-size: 1.15rem;
        color: var(--primary);
        font-weight: 800;
    }
    .metric span {
        font-size: 0.78rem;
        color: var(--text-muted);
    }
    .hero-contact {
        border-top: 1px dashed var(--border);
        padding-top: 14px;
    }
    .hero-contact strong {
        font-size: 0.95rem;
        color: var(--heading);
    }
    .hero-contact a {
        display: block;
        font-size: 1.5rem;
        font-weight: 800;
        color: var(--secondary);
        margin: 4px 0;
        font-family: Arial, sans-serif;
        letter-spacing: 0.5px;
    }
    .hero-contact p {
        font-size: 0.82rem;
        color: var(--text-muted);
        margin-top: 6px;
        line-height: 1.55;
    }
    .hero-contact p:last-child {
        background: var(--primary-soft);
        border-radius: 10px;
        padding: 10px 12px;
        border-left: 3px solid var(--primary);
        color: var(--text);
    }

    /* ===== Section ===== */
    .section {
        padding: 60px 0;
    }
    .section--alt {
        background: var(--bg-alt);
        border-top: 1px solid var(--border);
        border-bottom: 1px solid var(--border);
    }
    .section-head {
        display: flex;
        align-items: baseline;
        justify-content: space-between;
        margin-bottom: 28px;
        flex-wrap: wrap;
        gap: 10px;
    }
    .section-head h2 {
        font-size: 1.9rem;
        font-weight: 800;
        color: var(--heading);
        letter-spacing: -0.3px;
    }
    .section-head span {
        font-size: 0.82rem;
        color: var(--text-muted);
        text-transform: uppercase;
        letter-spacing: 2px;
        background: var(--primary-soft);
        padding: 4px 14px;
        border-radius: 40px;
    }

    /* ===== About surface card ===== */
    .surface-card {
        background: var(--bg-alt);
        border-radius: var(--radius);
        padding: 34px;
        border: 1px solid var(--border);
        box-shadow: var(--shadow-card);
        transition: 0.2s;
    }
    .surface-card:hover {
        box-shadow: var(--shadow-hover);
    }
    .about-grid {
        display: grid;
        grid-template-columns: 1.2fr 0.8fr;
        gap: 36px;
        align-items: center;
    }
    .about-copy p {
        margin-bottom: 14px;
        font-size: 0.94rem;
        line-height: 1.7;
        color: var(--text);
    }
    .about-copy p strong {
        color: var(--primary);
    }
    .about-figure {
        border-radius: 16px;
        overflow: hidden;
        border: 1px solid var(--border);
        background: var(--bg);
        margin: 0;
    }
    .about-figure img {
        width: 100%;
        height: 260px;
        object-fit: cover;
    }
    .about-figure figcaption {
        padding: 12px 16px;
        font-size: 0.86rem;
        color: var(--text-muted);
        text-align: center;
        font-weight: 600;
    }
    .service-note {
        background: var(--primary-soft);
        padding: 16px 20px;
        border-radius: 12px;
        border-left: 4px solid var(--primary);
        font-size: 0.92rem;
        color: var(--text);
        margin-top: 20px;
    }

    /* ===== Strengths ===== */
    .strength-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
    }
    .strength-card {
        background: var(--bg-alt);
        border: 1px solid var(--border);
        border-radius: 16px;
        padding: 22px 18px;
        transition: 0.2s;
        box-shadow: var(--shadow-card);
        position: relative;
    }
    .strength-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-hover);
        border-color: var(--primary);
    }
    .strength-card .ico {
        font-size: 1.6rem;
        margin-bottom: 10px;
        display: block;
    }
    .strength-card h3 {
        font-size: 1rem;
        font-weight: 700;
        color: var(--heading);
        margin-bottom: 8px;
    }
    .strength-card p {
        font-size: 0.83rem;
        color: var(--text-muted);
        line-height: 1.5;
    }

    /* ===== Gallery ===== */
    .gallery-stack {
        display: flex;
        flex-direction: column;
        gap: 40px;
    }
    .gallery-group {
        background: var(--bg-alt);
        border-radius: var(--radius);
        padding: 26px;
        border: 1px solid var(--border);
        box-shadow: var(--shadow-card);
    }
    .gallery-group__head {
        display: flex;
        align-items: center;
        gap: 14px;
        margin-bottom: 20px;
        flex-wrap: wrap;
    }
    .gallery-group__head h3 {
        font-size: 1.35rem;
        font-weight: 800;
        color: var(--heading);
    }
    .gallery-group__head span {
        background: var(--primary-soft);
        color: var(--primary-deep);
        font-size: 0.75rem;
        padding: 4px 14px;
        border-radius: 40px;
        font-weight: 600;
    }
    .gallery-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 16px;
    }
    .gallery-card {
        background: var(--bg);
        border: 1px solid var(--border);
        border-radius: 14px;
        overflow: hidden;
        transition: 0.2s;
        padding-bottom: 10px;
    }
    .gallery-card:hover {
        transform: translateY(-4px);
        box-shadow: 0 14px 28px rgba(29,92,143,0.12);
        border-color: var(--primary);
    }
    .gallery-card img {
        width: 100%;
        height: 200px;
        object-fit: cover;
        transition: transform 0.4s ease;
    }
    .gallery-card:hover img {
        transform: scale(1.05);
    }
    .gallery-card p {
        font-size: 0.86rem;
        font-weight: 600;
        text-align: center;
        padding: 10px 10px 2px;
        color: var(--heading);
        line-height: 1.4;
    }

    /* ===== FAQ ===== */
    .faq-grid {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
        background: var(--bg-alt);
        padding: 26px;
        border-radius: var(--radius);
        border: 1px solid var(--border);
        box-shadow: var(--shadow-card);
    }
    .faq-item {
        background: var(--bg);
        border-radius: 14px;
        padding: 18px 20px;
        border: 1px solid var(--border);
    }
    .faq-item h3 {
        font-size: 1rem;
        font-weight: 700;
        color: var(--heading);
        margin-bottom: 6px;
    }
    .faq-item p {
        font-size: 0.87rem;
        color: var(--text-muted);
        line-height: 1.55;
    }
    .faq-item h3::before {
        content: "Q.";
        color: var(--secondary);
        margin-right: 5px;
        font-weight: 800;
    }

    /* ===== CTA Panel ===== */
    .cta-panel {
        background: linear-gradient(135deg, var(--primary-deep) 0%, var(--primary) 100%);
        border-radius: 24px;
        padding: 36px;
        display: grid;
        grid-template-columns: 1.2fr 0.8fr;
        gap: 40px;
        color: #fff;
        box-shadow: 0 20px 40px rgba(18,60,94,0.24);
        position: relative;
        overflow: hidden;
    }
    .cta-panel:before {
        content: "";
        position: absolute;
        width: 400px;
        height: 400px;
        background: rgba(255,255,255,0.04);
        border-radius: 50%;
        top: -150px;
        right: -80px;
    }
    .cta-panel:after {
        content: "";
        position: absolute;
        width: 180px;
        height: 180px;
        background: rgba(255,255,255,0.03);
        border-radius: 50%;
        bottom: -60px;
        left: 10%;
    }
    .cta-copy {
        position: relative;
        z-index: 2;
    }
    .cta-copy .eyebrow {
        font-size: 0.78rem;
        letter-spacing: 2px;
        opacity: 0.8;
        margin-bottom: 8px;
    }
    .cta-copy h2 {
        font-size: 2rem;
        font-weight: 800;
        margin-bottom: 12px;
        letter-spacing: -0.3px;
    }
    .cta-copy p {
        font-size: 0.94rem;
        opacity: 0.9;
        margin-bottom: 18px;
    }
    .contact-list {
        list-style: none;
        display: flex;
        flex-direction: column;
        gap: 8px;
    }
    .contact-list li {
        font-size: 0.95rem;
        font-weight: 600;
        background: rgba(255,255,255,0.1);
        border-radius: 8px;
        padding: 8px 14px;
        backdrop-filter: blur(2px);
    }
    .cta-contact {
        background: rgba(255,255,255,0.12);
        backdrop-filter: blur(6px);
        border: 1px solid rgba(255,255,255,0.2);
        border-radius: 18px;
        padding: 28px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        position: relative;
        z-index: 2;
    }
    .cta-contact strong {
        font-size: 1.1rem;
        font-weight: 700;
        margin-bottom: 6px;
    }
    .cta-contact a {
        font-size: 2rem;
        font-weight: 800;
        font-family: Arial, sans-serif;
        letter-spacing: 0.5px;
        color: #ffc299;
        display: block;
        margin-bottom: 16px;
    }
    .cta-contact__meta {
        display: flex;
        flex-direction: column;
        gap: 12px;
        border-top: 1px solid rgba(255,255,255,0.2);
        padding-top: 16px;
    }
    .cta-contact__meta div {
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 8px;
    }
    .cta-contact__meta span {
        font-size: 0.8rem;
        opacity: 0.78;
    }
    .cta-contact__meta strong {
        font-size: 0.95rem;
        text-align: right;
    }

    /* ===== Footer ===== */
    .footer {
        background: var(--heading);
        color: #b9c6d1;
        padding: 50px 0 30px;
        font-size: 0.88rem;
    }
    .footer__inner {
        display: flex;
        flex-direction: column;
        gap: 18px;
    }
    .footer-copy p {
        margin-bottom: 10px;
        line-height: 1.7;
        font-size: 0.84rem;
        color: #96a5b2;
    }
    .footer-copy p strong {
        color: #dde5ea;
    }
    .friend-links-row {
        border-top: 1px solid rgba(255,255,255,0.1);
        padding-top: 22px;
        width: 100%;
    }
    .friend-links {
        display: block;
        width: 100%;
    }
    .friend-links__inner {
        display: flex;
        flex-wrap: wrap;
        gap: 14px 20px;
        line-height: 1.4;
    }
    .friend-links__inner a {
        color: #8fa0ae;
        font-size: 0.78rem;
        transition: 0.2s;
        display: inline-block;
    }
    .friend-links__inner a:hover {
        color: var(--secondary);
    }

    /* ===== Timestamp ===== */
    .timestamp {
        text-align: center;
        font-size: 0.78rem;
        color: #768794;
        margin-top: 18px;
        letter-spacing: 0.3px;
    }

    /* ===== Responsive ===== */
    @media (max-width: 992px) {
        .hero-grid {
            grid-template-columns: 1fr;
            gap: 24px;
        }
        .about-grid {
            grid-template-columns: 1fr;
        }
        .strength-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .gallery-grid {
            grid-template-columns: repeat(3, 1fr);
        }
        .cta-panel {
            grid-template-columns: 1fr;
            gap: 28px;
        }
        .faq-grid {
            grid-template-columns: 1fr;
        }
    }
    @media (max-width: 768px) {
        .header__inner {
            flex-direction: column;
            gap: 10px;
            padding: 12px 0;
        }
        .nav {
            gap: 12px;
            justify-content: center;
        }
        .nav a {
            font-size: 0.85rem;
        }
        .hero-copy h1 {
            font-size: 1.8rem;
        }
        .section-head h2 {
            font-size: 1.4rem;
        }
        .strength-grid {
            grid-template-columns: 1fr;
        }
        .gallery-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
        }
        .gallery-card img {
            height: 140px;
        }
        .surface-card {
            padding: 18px;
        }
        .cta-panel {
            padding: 24px;
        }
        .topbar__inner {
            flex-direction: column;
            gap: 4px;
            text-align: center;
        }
        .section {
            padding: 40px 0;
        }
    }
    @media (max-width: 480px) {
        .gallery-grid {
            grid-template-columns: 1fr;
        }
        .gallery-card img {
            height: 180px;
        }
        .metric-grid {
            grid-template-columns: 1fr 1fr;
            gap: 10px;
            margin-bottom: 14px;
        }
        .hero-panel {
            padding: 20px;
        }
        .cta-contact a {
            font-size: 1.6rem;
        }
    }


.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;}
}