/* ===== 宋哥石材 · 灰金岩板系（与首页同源） ===== */
        :root {
            --primary: #b78a5a;
            --primary-dark: #8e683f;
            --secondary: #4a3b2c;
            --bg-light: #f5f1ea;
            --bg-white: #ffffff;
            --bg-deep: #1f2a24;
            --text-main: #2b2b2b;
            --text-muted: #6e6e6e;
            --line: #e0d8cc;
            --shadow: 0 12px 32px rgba(0, 0, 0, 0.06);
            --radius: 18px;
            --radius-sm: 12px;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Microsoft Sans Serif', 'Microsoft YaHei', 'PingFang SC', sans-serif;
            background: var(--bg-light);
            color: var(--text-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }
        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        img {
            display: block;
            max-width: 100%;
            height: auto;
        }

        /* ===== Topbar ===== */
        .topbar {
            background: var(--bg-deep);
            color: rgba(255, 255, 255, 0.85);
            font-size: 0.85rem;
            padding: 8px 0;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .topbar .container {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 6px 24px;
        }

        /* ===== Header ===== */
        .header {
            background: var(--bg-white);
            position: sticky;
            top: 0;
            z-index: 50;
            box-shadow: 0 2px 20px rgba(0,0,0,0.03);
            border-bottom: 1px solid var(--line);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            padding: 16px 24px;
            max-width: 1280px;
            margin: 0 auto;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .brand__mark {
            width: 38px;
            height: 38px;
            background: linear-gradient(145deg, var(--primary), var(--primary-dark));
            border-radius: 10px;
            box-shadow: 0 4px 12px rgba(183, 138, 90, 0.3);
            position: relative;
        }
        .brand__mark::after {
            content: "";
            position: absolute;
            inset: 10px;
            border: 2px solid rgba(255,255,255,0.5);
            border-radius: 6px;
        }
        .brand__text {
            display: flex;
            flex-direction: column;
        }
        .brand__text strong {
            font-size: 1.35rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: var(--secondary);
        }
        .brand__text span {
            font-size: 0.75rem;
            color: var(--text-muted);
            letter-spacing: 0.3px;
        }
        .nav {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            align-items: center;
        }
        .nav a {
            font-weight: 500;
            font-size: 0.95rem;
            color: var(--text-main);
            transition: color 0.2s;
            border-bottom: 2px solid transparent;
            padding-bottom: 4px;
        }
        .nav a:hover {
            color: var(--primary);
            border-bottom-color: var(--primary);
        }

        /* ===== Hero (About) ===== */
        .hero {
            background: linear-gradient(120deg, #e8e0d4 0%, #d7cbbc 100%);
            padding: 64px 0;
            position: relative;
            overflow: hidden;
        }
        .hero::before {
            content: "";
            position: absolute;
            top: -30%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(183,138,90,0.12) 0%, transparent 65%);
            pointer-events: none;
        }
        .hero-grid {
            display: grid;
            grid-template-columns: 1.4fr 0.9fr;
            gap: 48px;
            align-items: center;
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .hero-copy {
            z-index: 2;
        }
        .eyebrow {
            display: inline-block;
            background: rgba(255, 255, 255, 0.7);
            padding: 4px 18px;
            border-radius: 40px;
            font-size: 0.8rem;
            font-weight: 600;
            letter-spacing: 1px;
            color: var(--primary-dark);
            margin-bottom: 18px;
            border: 1px solid rgba(183,138,90,0.3);
        }
        .hero-copy h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--secondary);
            margin-bottom: 18px;
            letter-spacing: -0.5px;
        }
        .hero-copy p {
            font-size: 1.1rem;
            color: #4f463a;
            max-width: 560px;
            margin-bottom: 28px;
        }
        .chip-row {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 12px;
        }
        .chip-row span {
            background: rgba(255,255,255,0.65);
            padding: 6px 16px;
            border-radius: 40px;
            font-size: 0.82rem;
            font-weight: 500;
            color: #3f2f1f;
            border: 1px solid rgba(183,138,90,0.2);
        }
        .hero-side {
            background: rgba(255, 255, 255, 0.55);
            backdrop-filter: blur(8px);
            border-radius: 24px;
            padding: 28px;
            border: 1px solid rgba(255, 255, 255, 0.8);
            box-shadow: 0 20px 50px rgba(0,0,0,0.05);
        }
        .metric-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 12px;
            margin-bottom: 20px;
        }
        .metric-grid div {
            background: rgba(255,255,255,0.6);
            padding: 12px 6px;
            border-radius: 12px;
            text-align: center;
            font-weight: 600;
            font-size: 0.9rem;
            border: 1px solid rgba(255,255,255,0.8);
        }
        .metric-grid div small {
            display: block;
            font-weight: 400;
            color: var(--text-muted);
            font-size: 0.7rem;
        }
        .hero-side__contact {
            border-top: 1px solid rgba(0,0,0,0.05);
            padding-top: 16px;
        }
        .hero-side__contact strong {
            font-size: 0.9rem;
            color: var(--secondary);
        }
        .hero-side__contact a {
            display: inline-block;
            background: var(--primary);
            color: white;
            padding: 8px 20px;
            border-radius: 40px;
            margin: 8px 0;
            font-weight: 700;
            font-size: 1.2rem;
            letter-spacing: 0.5px;
            box-shadow: 0 6px 18px rgba(183,138,90,0.35);
        }
        .hero-side__contact p {
            font-size: 0.85rem;
            color: #5c4f3d;
        }

        /* ===== Section ===== */
        .section {
            padding: 64px 0;
        }
        .section-head {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-head h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--secondary);
            display: inline-block;
            border-bottom: 3px solid var(--primary);
            padding-bottom: 8px;
            margin-bottom: 6px;
        }
        .section-head span {
            display: block;
            color: var(--text-muted);
            font-size: 0.85rem;
            letter-spacing: 2px;
            text-transform: uppercase;
            margin-top: 8px;
        }
        .panel {
            background: var(--bg-white);
            border-radius: 26px;
            padding: 40px;
            box-shadow: var(--shadow);
            border: 1px solid var(--line);
        }
        .company-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }
        .company-copy p {
            margin-bottom: 14px;
            color: var(--text-muted);
            line-height: 1.75;
        }
        .company-copy strong {
            color: var(--secondary);
        }
        .figure {
            margin: 0;
        }
        .figure img {
            width: 100%;
            border-radius: var(--radius);
            box-shadow: 0 12px 30px rgba(0,0,0,0.1);
            border: 1px solid var(--line);
        }
        .figure figcaption {
            text-align: center;
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: 10px;
            font-style: italic;
        }

        /* ===== Strengths ===== */
        .strength-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .strength-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 24px 18px;
            text-align: center;
            border: 1px solid var(--line);
            box-shadow: 0 4px 16px rgba(0,0,0,0.02);
            transition: transform 0.2s, box-shadow 0.2s;
        }
        .strength-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 24px rgba(0,0,0,0.06);
        }
        .strength-card .icon {
            font-size: 2rem;
            margin-bottom: 12px;
        }
        .strength-card h3 {
            font-size: 1rem;
            color: var(--secondary);
            margin-bottom: 8px;
        }
        .strength-card p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ===== FAQ ===== */
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .faq-item {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 24px;
            border: 1px solid var(--line);
            box-shadow: 0 4px 12px rgba(0,0,0,0.02);
        }
        .faq-item h3 {
            color: var(--secondary);
            font-size: 1rem;
            margin-bottom: 10px;
            font-weight: 600;
        }
        .faq-item p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* ===== Contact CTA ===== */
        .cta-panel {
            background: linear-gradient(135deg, #1f2a24 0%, #2a3a32 100%);
            border-radius: 30px;
            padding: 48px;
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            color: #e6ded5;
        }
        .cta-copy h2 {
            font-size: 2rem;
            color: white;
            margin-bottom: 12px;
        }
        .cta-copy p {
            color: rgba(255,255,255,0.7);
            margin-bottom: 20px;
        }
        .cta-copy .eyebrow {
            background: rgba(255,255,255,0.1);
            color: #e2cbb4;
        }
        .contact-list {
            list-style: none;
            margin-top: 16px;
        }
        .contact-list li {
            padding: 6px 0;
            color: #ccc6be;
        }
        .cta-contact {
            background: rgba(255, 255, 255, 0.08);
            border-radius: 24px;
            padding: 32px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        .cta-contact strong {
            font-size: 1.2rem;
            color: white;
        }
        .cta-contact a {
            display: inline-block;
            background: var(--primary);
            color: white;
            padding: 14px 24px;
            border-radius: 50px;
            font-weight: 700;
            font-size: 1.4rem;
            margin: 16px 0;
            text-align: center;
            box-shadow: 0 8px 24px rgba(183,138,90,0.4);
        }
        .cta-contact p {
            color: #ccc6be;
            font-size: 0.9rem;
        }
        .cta-contact p a {
            font-size: 0.9rem;
            background: transparent;
            box-shadow: none;
            padding: 0;
            color: #e2cbb4;
            text-decoration: underline;
            margin: 8px 0 0;
            display: inline;
        }

        /* ===== Footer ===== */
        .footer {
            background: var(--bg-deep);
            color: rgba(255,255,255,0.65);
            padding: 40px 0 20px;
            margin-top: 40px;
        }
        .footer__inner {
            max-width: 1240px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .footer__inner p {
            margin-bottom: 10px;
            font-size: 0.9rem;
        }
        .friend-links-row {
            margin-top: 32px;
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 20px;
        }
        .friend-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 8px 16px;
        }
        .friend-links a {
            color: rgba(255,255,255,0.45);
            font-size: 0.75rem;
            border-bottom: 1px dashed rgba(255,255,255,0.2);
        }
        .friend-links a:hover {
            color: var(--primary);
        }
        .timestamp {
            text-align: center;
            font-size: 0.7rem;
            color: rgba(255,255,255,0.35);
            margin-top: 20px;
            padding-top: 12px;
            border-top: 1px solid rgba(255,255,255,0.05);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 900px) {
            .hero-grid {
                grid-template-columns: 1fr;
            }
            .company-grid {
                grid-template-columns: 1fr;
            }
            .strength-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .faq-grid {
                grid-template-columns: 1fr;
            }
            .cta-panel {
                grid-template-columns: 1fr;
            }
            .header {
                flex-direction: column;
                gap: 12px;
            }
        }
    

.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;}
}