:root {
            --primary: #1d5c87;
            --primary-dark: #123b5e;
            --primary-light: #e9f2f9;
            --accent: #f2b134;
            --accent-dark: #d9951a;
            --surface: #ffffff;
            --surface-soft: #f4f7fb;
            --ink: #1a2a3a;
            --ink-soft: #3d5567;
            --muted: #7a8ea0;
            --line: #e1e9f0;
            --shadow: 0 16px 40px rgba(18, 59, 94, 0.1);
            --radius-lg: 28px;
            --radius-md: 18px;
            --radius-sm: 10px;
            --font-body: "Microsoft Sans Serif", "Microsoft YaHei", "PingFang SC", "Segoe UI", sans-serif;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-body);
            background: var(--surface-soft);
            color: var(--ink);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        ul {
            list-style: none;
        }

        .container {
            max-width: 1260px;
            margin: 0 auto;
            padding: 0 28px;
        }

        .site-shell {
            min-height: 100vh;
            overflow: hidden;
        }

        /* ===== Topbar ===== */
        .topbar {
            background: var(--primary-dark);
            color: #dbeafe;
            font-size: 0.85rem;
            padding: 8px 0;
            letter-spacing: 0.02em;
        }

        .topbar__inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== Header ===== */
        .header {
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(8px);
            box-shadow: 0 4px 18px rgba(18, 59, 94, 0.06);
            position: sticky;
            top: 0;
            z-index: 50;
            border-bottom: 1px solid var(--line);
        }

        .header__inner {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 0;
            gap: 20px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 12px;
        }

        .brand__mark {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: linear-gradient(145deg, var(--primary), var(--primary-dark));
            display: grid;
            place-items: center;
            color: #fff;
            font-weight: 800;
            font-size: 1rem;
            box-shadow: 0 6px 14px rgba(18, 59, 94, 0.22);
        }

        .brand__mark::after {
            content: "源";
            font-size: 1.2rem;
        }

        .brand__text {
            display: flex;
            flex-direction: column;
            line-height: 1.15;
        }

        .brand__text strong {
            font-size: 1.35rem;
            color: var(--primary-dark);
            letter-spacing: 0.02em;
        }

        .brand__text span {
            font-size: 0.82rem;
            color: var(--muted);
            letter-spacing: 0.04em;
        }

        .nav {
            display: flex;
            gap: 6px;
            align-items: center;
            flex-wrap: wrap;
        }

        .nav a {
            padding: 6px 14px;
            border-radius: 40px;
            font-size: 0.9rem;
            color: var(--ink-soft);
            font-weight: 600;
            transition: all 0.2s;
            border: 1px solid transparent;
        }

        .nav a:hover {
            background: var(--primary-light);
            color: var(--primary);
            border-color: rgba(29, 92, 135, 0.2);
        }

        /* ===== Hero ===== */
        .hero {
            padding: 76px 0 72px;
            background: linear-gradient(135deg, #dfeaf4 0%, #f8fafd 70%);
            position: relative;
        }

        .hero::before {
            content: "";
            position: absolute;
            top: -10%;
            left: -8%;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(242, 177, 52, 0.2), transparent 60%);
            border-radius: 50%;
            z-index: 0;
        }

        .hero::after {
            content: "";
            position: absolute;
            bottom: -12%;
            right: -4%;
            width: 360px;
            height: 360px;
            background: radial-gradient(circle, rgba(29, 92, 135, 0.1), transparent 65%);
            border-radius: 50%;
            z-index: 0;
        }

        .hero-grid {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: stretch;
        }

        .hero-copy {
            padding: 18px 0;
        }

        .eyebrow {
            display: inline-block;
            background: rgba(242, 177, 52, 0.18);
            color: var(--accent-dark);
            font-size: 0.8rem;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 40px;
            letter-spacing: 0.06em;
            margin-bottom: 14px;
            text-transform: uppercase;
        }

        .hero-copy h1 {
            font-size: 3rem;
            font-weight: 800;
            color: var(--primary-dark);
            line-height: 1.1;
            letter-spacing: -1px;
            margin-bottom: 16px;
        }

        .hero-copy>.lead {
            font-size: 1.1rem;
            color: var(--ink-soft);
            max-width: 620px;
            margin-bottom: 34px;
        }

        .chip-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-bottom: 14px;
        }

        .chip {
            display: inline-block;
            background: #fff;
            border: 1px solid var(--line);
            color: var(--ink-soft);
            font-size: 0.8rem;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 40px;
            box-shadow: 0 2px 6px rgba(18, 59, 94, 0.04);
        }

        .keyword-row {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .keyword-tag {
            font-size: 0.72rem;
            background: var(--surface-soft);
            padding: 3px 10px;
            border-radius: 30px;
            color: var(--muted);
            border: 1px dashed #c9d7e4;
        }

        .hero-panel {
            background: linear-gradient(160deg, var(--primary-dark), #264f7a);
            border-radius: var(--radius-lg);
            padding: 28px 26px;
            color: #e7f0f8;
            box-shadow: var(--shadow);
            display: flex;
            flex-direction: column;
            gap: 20px;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .metric-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 14px;
        }

        .metric {
            background: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-sm);
            padding: 14px;
        }

        .metric strong {
            display: block;
            font-size: 1.3rem;
            color: #fff;
            font-weight: 700;
        }

        .metric span {
            font-size: 0.8rem;
            opacity: 0.8;
        }

        .hero-contact {
            border-top: 1px solid rgba(255, 255, 255, 0.2);
            padding-top: 14px;
            font-size: 0.85rem;
            line-height: 1.6;
            color: #d3e2ef;
        }

        .hero-contact a {
            display: inline-block;
            background: var(--accent);
            color: var(--primary-dark);
            font-weight: 800;
            font-size: 1.3rem;
            padding: 8px 18px;
            border-radius: 40px;
            margin: 8px 0;
            letter-spacing: 0.04em;
            box-shadow: 0 6px 16px rgba(242, 177, 52, 0.4);
        }

        .hero-contact strong {
            color: #fff;
            font-size: 1rem;
        }

        .hero-contact p {
            margin-top: 6px;
            font-size: 0.82rem;
            opacity: 0.85;
        }

        /* ===== Sections global ===== */
        .section {
            padding: 64px 0;
        }

        .section-head {
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
            gap: 20px;
            margin-bottom: 34px;
            border-bottom: 2px solid var(--line);
            padding-bottom: 16px;
        }

        .section-head h2 {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--primary-dark);
            letter-spacing: -0.02em;
        }

        .section-head>span {
            font-size: 0.8rem;
            color: var(--muted);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            font-weight: 600;
        }

        .surface-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 32px;
            box-shadow: 0 6px 22px rgba(18, 59, 94, 0.05);
            border: 1px solid var(--line);
        }

        .about-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 36px;
            align-items: center;
        }

        .about-copy p {
            margin-bottom: 14px;
            color: var(--ink-soft);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        .about-copy strong {
            color: var(--primary-dark);
        }

        .about-figure {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--line);
        }

        .about-figure img {
            width: 100%;
            aspect-ratio: 4 / 3;
            object-fit: cover;
        }

        .about-figure figcaption {
            background: var(--surface);
            padding: 12px 14px;
            font-size: 0.82rem;
            color: var(--muted);
            text-align: center;
            border-top: 1px solid var(--line);
        }

        /* ===== Strengths ===== */
        .strength-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 22px;
        }

        .strength-card {
            background: var(--surface);
            border-radius: var(--radius-md);
            padding: 26px 22px;
            border: 1px solid var(--line);
            box-shadow: 0 4px 14px rgba(18, 59, 94, 0.04);
            transition: all 0.25s;
            position: relative;
            overflow: hidden;
        }

        .strength-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 60px;
            background: var(--accent);
            border-radius: 0 0 4px 4px;
        }

        .strength-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 26px rgba(18, 59, 94, 0.1);
        }

        .strength-icon {
            width: 40px;
            height: 40px;
            background: var(--primary-light);
            border-radius: 12px;
            display: grid;
            place-items: center;
            font-size: 1rem;
            margin-bottom: 14px;
            color: var(--primary);
        }

        .strength-card h3 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 6px;
        }

        .strength-card p {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.6;
        }

        /* ===== Gallery ===== */
        .gallery-stack {
            display: flex;
            flex-direction: column;
            gap: 28px;
        }

        .gallery-group {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 26px;
            border: 1px solid var(--line);
        }

        .gallery-group h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .gallery-group h3::before {
            content: "";
            width: 28px;
            height: 4px;
            background: var(--accent);
            border-radius: 4px;
            display: inline-block;
        }

        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .gallery-card {
            background: var(--surface-soft);
            border-radius: var(--radius-sm);
            overflow: hidden;
            border: 1px solid var(--line);
            transition: all 0.2s;
        }

        .gallery-card:hover {
            transform: scale(1.015);
            box-shadow: 0 10px 20px rgba(18, 59, 94, 0.08);
        }

        .gallery-card img {
            width: 100%;
            aspect-ratio: 1 / 0.8;
            object-fit: cover;
        }

        .gallery-card p {
            font-size: 0.82rem;
            font-weight: 600;
            color: var(--ink-soft);
            padding: 10px 12px;
            background: var(--surface);
            border-top: 1px solid var(--line);
            line-height: 1.3;
        }

        /* ===== FAQ ===== */
        .faq-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .faq-item {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            padding: 22px 20px;
            box-shadow: 0 2px 10px rgba(18, 59, 94, 0.03);
        }

        .faq-item h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 8px;
            display: flex;
            gap: 8px;
            align-items: flex-start;
        }

        .faq-item h4::before {
            content: "Q";
            background: var(--primary);
            color: #fff;
            font-size: 0.7rem;
            border-radius: 6px;
            padding: 2px 6px;
            font-weight: 700;
            margin-top: 3px;
        }

        .faq-item p {
            font-size: 0.85rem;
            color: var(--muted);
            line-height: 1.7;
            padding-left: 26px;
        }

        /* ===== CTA ===== */
        .cta-panel {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 36px 40px;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 36px;
            align-items: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--line);
        }

        .cta-copy h2 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 10px;
        }

        .cta-copy p {
            font-size: 0.95rem;
            color: var(--muted);
            margin-bottom: 18px;
        }

        .contact-list li {
            padding: 6px 0;
            font-size: 0.85rem;
            color: var(--ink-soft);
            border-bottom: 1px dashed var(--line);
        }

        .cta-contact {
            background: var(--primary-light);
            border-radius: var(--radius-md);
            padding: 26px 22px;
            text-align: center;
            border: 1px solid rgba(29, 92, 135, 0.2);
        }

        .cta-contact strong {
            display: block;
            font-size: 1rem;
            color: var(--primary-dark);
            margin-bottom: 12px;
        }

        .cta-contact a {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            font-weight: 800;
            font-size: 1.2rem;
            padding: 10px 30px;
            border-radius: 40px;
            margin-bottom: 16px;
            box-shadow: 0 6px 14px rgba(29, 92, 135, 0.2);
        }

        .cta-contact__meta {
            display: flex;
            gap: 14px;
            justify-content: center;
            text-align: center;
            margin-top: 12px;
            flex-wrap: wrap;
        }

        .cta-contact__meta div {
            background: #fff;
            border-radius: var(--radius-sm);
            padding: 10px 14px;
            flex: 1;
            min-width: 100px;
            border: 1px solid var(--line);
        }

        .cta-contact__meta span {
            display: block;
            font-size: 0.7rem;
            text-transform: uppercase;
            color: var(--muted);
            letter-spacing: 0.04em;
        }

        .cta-contact__meta strong {
            display: block;
            font-size: 0.85rem;
            color: var(--primary-dark);
            margin-bottom: 0;
            margin-top: 2px;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--primary-dark);
            color: #c6d8e6;
            padding: 40px 0 24px;
            font-size: 0.85rem;
        }

        .footer__inner {
            padding-bottom: 20px;
        }

        .footer-copy p {
            margin-bottom: 8px;
            line-height: 1.7;
        }

        .friend-links-row {
            margin-top: 28px;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 22px;
        }

        .friend-links__inner {
            display: flex;
            flex-wrap: wrap;
            gap: 6px 10px;
        }

        .friend-links__inner a {
            display: inline-block;
            font-size: 0.72rem;
            color: rgba(255, 255, 255, 0.7);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 2px 8px;
            border-radius: 6px;
            transition: all 0.15s;
        }

        .friend-links__inner a:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
        }

        .timestamp-line {
            text-align: center;
            margin-top: 18px;
            padding-top: 14px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.7rem;
            color: rgba(255, 255, 255, 0.5);
            letter-spacing: 0.04em;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
            }

            .about-grid {
                grid-template-columns: 1fr;
            }

            .cta-panel {
                grid-template-columns: 1fr;
            }

            .strength-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .gallery-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 768px) {
            .header__inner {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            .nav {
                width: 100%;
                flex-wrap: wrap;
                gap: 4px;
            }

            .nav a {
                font-size: 0.8rem;
                padding: 4px 10px;
            }

            .hero-copy h1 {
                font-size: 2.1rem;
            }

            .section-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }

            .strength-grid {
                grid-template-columns: 1fr;
            }

            .gallery-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .faq-grid {
                grid-template-columns: 1fr;
            }

            .cta-panel {
                padding: 24px;
            }
        }

        @media (max-width: 480px) {
            .container {
                padding: 0 16px;
            }

            .gallery-grid {
                grid-template-columns: 1fr;
            }

            .metric-grid {
                grid-template-columns: 1fr;
            }
        }
    

.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;}
}