/* 山东源海化工有限公司 - 全站公共样式 */

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

:root {
    --primary: #0a4d8c;
    --primary-dark: #073764;
    --primary-light: #1e6fbf;
    --accent: #f39c12;
    --accent-dark: #d97f0a;
    --text: #1f2937;
    --text-light: #4b5563;
    --text-muted: #6b7280;
    --bg: #ffffff;
    --bg-soft: #f5f7fa;
    --bg-section: #f8fafc;
    --border: #e5e7eb;
    --success: #10b981;
    --warning: #f59e0b;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--text);
    line-height: 1.7;
    background: var(--bg);
    font-size: 16px;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--accent);
}

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

h1, h2, h3, h4, h5, h6 {
    color: var(--text);
    line-height: 1.4;
    font-weight: 700;
}

p {
    margin-bottom: 1em;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
}

/* ========== 顶部公告栏 ========== */
.top-bar {
    background: var(--primary-dark);
    color: #fff;
    font-size: 13px;
    padding: 6px 0;
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.top-bar a {
    color: #fff;
}

.top-bar .tel {
    font-weight: 700;
    color: var(--accent);
}

/* ========== 头部导航 ========== */
.site-header {
    background: #fff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    position: sticky;
    top: 0;
    z-index: 100;
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 14px;
    padding-bottom: 14px;
    flex-wrap: wrap;
    gap: 12px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.brand-logo {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 800;
    font-size: 20px;
    letter-spacing: -1px;
}

.brand-text h1,
.brand-text .brand-name {
    font-size: 18px;
    font-weight: 800;
    color: var(--primary-dark);
    margin: 0;
    line-height: 1.2;
}

.brand-text .brand-tag {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
}

.header-contact {
    text-align: right;
    line-height: 1.3;
}

.header-contact .tel-label {
    font-size: 12px;
    color: var(--text-muted);
}

.header-contact .tel-num {
    font-size: 22px;
    font-weight: 800;
    color: var(--accent);
}

/* ========== 主导航 ========== */
.main-nav {
    background: var(--primary);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.main-nav .container {
    display: flex;
    align-items: center;
}

.main-nav ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    width: 100%;
}

.main-nav li {
    flex: 1;
    text-align: center;
    min-width: 90px;
}

.main-nav a {
    display: block;
    padding: 14px 8px;
    color: #fff;
    font-weight: 600;
    font-size: 15px;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
    transition: background 0.2s ease;
}

.main-nav li:last-child a {
    border-right: none;
}

.main-nav a:hover,
.main-nav a.active {
    background: var(--primary-dark);
    color: #fff;
}

/* ========== 面包屑 ========== */
.breadcrumb {
    background: var(--bg-soft);
    padding: 10px 0;
    font-size: 13px;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
}

.breadcrumb a {
    color: var(--text-light);
}

.breadcrumb a:hover {
    color: var(--primary);
}

.breadcrumb-sep {
    margin: 0 6px;
    color: var(--text-muted);
}

/* ========== Hero 横幅 ========== */
.hero {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
    color: #fff;
    padding: 56px 0 48px;
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: "";
    position: absolute;
    right: -100px;
    top: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero h1 {
    color: #fff;
    font-size: 32px;
    line-height: 1.3;
    margin-bottom: 16px;
    font-weight: 800;
}

.hero h1 .highlight {
    color: var(--accent);
}

.hero-subtitle {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 24px;
    max-width: 720px;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 28px;
}

.hero-tag {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
    color: #fff;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

/* ========== 按钮 ========== */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 15px;
    text-align: center;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
}

.btn-primary:hover {
    background: var(--accent-dark);
    color: #fff;
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: #fff;
    border: 1.5px solid #fff;
}

.btn-outline:hover {
    background: #fff;
    color: var(--primary);
}

.btn-blue {
    background: var(--primary);
    color: #fff;
}

.btn-blue:hover {
    background: var(--primary-dark);
    color: #fff;
}

/* ========== 章节 ========== */
.section {
    padding: 56px 0;
}

.section-soft {
    background: var(--bg-section);
}

.section-title {
    text-align: center;
    margin-bottom: 36px;
}

.section-title h2 {
    font-size: 28px;
    color: var(--primary-dark);
    margin-bottom: 10px;
    position: relative;
    display: inline-block;
    padding-bottom: 12px;
}

.section-title h2::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background: var(--accent);
    border-radius: 2px;
}

.section-title p {
    color: var(--text-muted);
    font-size: 15px;
}

/* ========== 卡片网格 ========== */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
}

.card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 24px;
    transition: all 0.2s ease;
}

.card:hover {
    box-shadow: 0 6px 20px rgba(10, 77, 140, 0.1);
    transform: translateY(-2px);
    border-color: var(--primary-light);
}

.card h3 {
    font-size: 18px;
    color: var(--primary-dark);
    margin-bottom: 12px;
}

.card p {
    color: var(--text-light);
    font-size: 14px;
    margin-bottom: 12px;
}

.card .card-meta {
    font-size: 13px;
    color: var(--text-muted);
}

.card .card-link {
    display: inline-block;
    margin-top: 8px;
    color: var(--accent);
    font-weight: 600;
    font-size: 14px;
}

/* 产品卡片 */
.product-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    box-shadow: 0 8px 24px rgba(10, 77, 140, 0.12);
    transform: translateY(-3px);
    border-color: var(--primary-light);
}

.product-card .product-img {
    height: 160px;
    background: linear-gradient(135deg, #e0ecf8, #cfe0f0);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 22px;
    font-weight: 700;
    position: relative;
}

.product-card .product-img .purity-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--accent);
    color: #fff;
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 12px;
}

.product-card .product-body {
    padding: 18px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-card h3 {
    font-size: 17px;
    color: var(--primary-dark);
    margin-bottom: 8px;
}

.product-card .product-spec {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 12px;
    line-height: 1.6;
}

.product-card .product-spec strong {
    color: var(--text);
}

.product-card .product-link {
    margin-top: auto;
    color: var(--accent);
    font-weight: 600;
    font-size: 14px;
}

/* ========== 参数表格 ========== */
.spec-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 6px;
    overflow: hidden;
}

.spec-table th,
.spec-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}

.spec-table th {
    background: var(--bg-soft);
    color: var(--primary-dark);
    font-weight: 700;
    width: 30%;
    white-space: nowrap;
}

.spec-table tr:last-child th,
.spec-table tr:last-child td {
    border-bottom: none;
}

/* ========== FAQ ========== */
.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 14px;
    overflow: hidden;
}

.faq-item h3 {
    background: var(--bg-soft);
    padding: 16px 20px;
    font-size: 16px;
    color: var(--primary-dark);
    border-left: 4px solid var(--accent);
    margin: 0;
}

.faq-item .faq-answer {
    padding: 16px 20px;
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.8;
}

/* ========== 文章列表 ========== */
.article-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 24px;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
}

.article-card:hover {
    box-shadow: 0 6px 20px rgba(10, 77, 140, 0.1);
    border-color: var(--primary-light);
}

.article-card .article-tag {
    display: inline-block;
    background: var(--bg-soft);
    color: var(--primary);
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 12px;
    margin-bottom: 12px;
    align-self: flex-start;
}

.article-card h3 {
    font-size: 18px;
    color: var(--primary-dark);
    margin-bottom: 10px;
    line-height: 1.4;
}

.article-card p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 14px;
    flex: 1;
}

.article-card .article-meta {
    font-size: 13px;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
    border-top: 1px solid var(--border);
    padding-top: 12px;
}

.article-card .read-more {
    color: var(--accent);
    font-weight: 600;
}

/* ========== 文章详情页 ========== */
.article-detail {
    max-width: 880px;
    margin: 0 auto;
    padding: 40px 16px;
}

.article-detail h1 {
    font-size: 28px;
    color: var(--primary-dark);
    margin-bottom: 14px;
    line-height: 1.4;
}

.article-detail .article-meta-top {
    color: var(--text-muted);
    font-size: 14px;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.article-detail h2 {
    font-size: 22px;
    color: var(--primary-dark);
    margin: 32px 0 14px;
    padding-left: 12px;
    border-left: 4px solid var(--accent);
}

.article-detail h3 {
    font-size: 18px;
    color: var(--primary-dark);
    margin: 22px 0 10px;
}

.article-detail p {
    color: var(--text);
    font-size: 16px;
    line-height: 1.9;
    margin-bottom: 14px;
}

.article-detail ul,
.article-detail ol {
    padding-left: 28px;
    margin-bottom: 14px;
}

.article-detail li {
    color: var(--text);
    font-size: 16px;
    line-height: 1.9;
    margin-bottom: 6px;
}

.article-detail strong {
    color: var(--primary-dark);
}

.article-detail blockquote {
    border-left: 4px solid var(--accent);
    background: var(--bg-soft);
    padding: 14px 18px;
    margin: 18px 0;
    color: var(--text-light);
    font-size: 15px;
    border-radius: 0 6px 6px 0;
}

/* ========== 询价框 ========== */
.cta-box {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    padding: 36px 28px;
    border-radius: 10px;
    text-align: center;
    margin: 24px 0;
}

.cta-box h3 {
    color: #fff;
    font-size: 22px;
    margin-bottom: 10px;
}

.cta-box p {
    color: rgba(255, 255, 255, 0.92);
    font-size: 15px;
    margin-bottom: 18px;
}

.cta-box .cta-tel {
    font-size: 28px;
    font-weight: 800;
    color: var(--accent);
    margin: 8px 0;
}

.cta-box .btn-primary {
    background: var(--accent);
    color: #fff;
}

.cta-box .btn-primary:hover {
    background: #fff;
    color: var(--primary);
}

/* ========== 优势列表 ========== */
.feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-list li {
    padding: 10px 0 10px 32px;
    position: relative;
    color: var(--text);
    font-size: 15px;
    line-height: 1.7;
    border-bottom: 1px dashed var(--border);
}

.feature-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 10px;
    width: 22px;
    height: 22px;
    background: var(--success);
    color: #fff;
    border-radius: 50%;
    text-align: center;
    line-height: 22px;
    font-size: 13px;
    font-weight: 700;
}

.feature-list li:last-child {
    border-bottom: none;
}

/* ========== 数字亮点 ========== */
.highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin: 32px 0;
}

.highlight-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 24px 16px;
    text-align: center;
}

.highlight-item .num {
    font-size: 32px;
    font-weight: 800;
    color: var(--accent);
    line-height: 1.2;
    margin-bottom: 6px;
}

.highlight-item .label {
    font-size: 14px;
    color: var(--text-light);
}

/* ========== 联系表单 ========== */
.contact-form {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 28px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    color: var(--text);
    font-weight: 600;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 15px;
    font-family: inherit;
    color: var(--text);
    background: #fff;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(10, 77, 140, 0.1);
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

/* ========== 标签云 ========== */
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 16px 0;
}

.tag-cloud a {
    background: #fff;
    border: 1px solid var(--border);
    color: var(--text-light);
    padding: 6px 14px;
    border-radius: 16px;
    font-size: 13px;
    transition: all 0.2s ease;
}

.tag-cloud a:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

/* ========== 页脚 ========== */
.site-footer {
    background: var(--primary-dark);
    color: rgba(255, 255, 255, 0.85);
    padding: 48px 0 0;
    margin-top: 56px;
    font-size: 14px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
    margin-bottom: 32px;
}

.footer-col h4 {
    color: #fff;
    font-size: 16px;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.footer-col ul {
    list-style: none;
    padding: 0;
}

.footer-col ul li {
    margin-bottom: 8px;
}

.footer-col a {
    color: rgba(255, 255, 255, 0.75);
    font-size: 13px;
}

.footer-col a:hover {
    color: var(--accent);
}

.footer-col p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.8;
    margin-bottom: 6px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 18px 0;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.7);
    margin: 0 6px;
}

/* ========== 通用工具类 ========== */
.text-center { text-align: center; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }

.label-pill {
    display: inline-block;
    background: var(--bg-soft);
    color: var(--primary);
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 12px;
    margin-right: 6px;
    margin-bottom: 6px;
}

.label-pill.accent {
    background: var(--accent);
    color: #fff;
}

/* ========== 响应式 ========== */
@media (max-width: 900px) {
    .hero {
        padding: 40px 0 32px;
    }

    .hero h1 {
        font-size: 24px;
    }

    .hero-subtitle {
        font-size: 15px;
    }

    .section {
        padding: 40px 0;
    }

    .section-title h2 {
        font-size: 22px;
    }

    .article-detail h1 {
        font-size: 22px;
    }

    .article-detail h2 {
        font-size: 18px;
    }

    .article-detail p,
    .article-detail li {
        font-size: 15px;
    }
}

@media (max-width: 768px) {
    .top-bar {
        font-size: 12px;
    }

    .top-bar .container {
        justify-content: center;
    }

    .top-bar .top-bar-info {
        display: none;
    }

    .site-header .container {
        padding-top: 10px;
        padding-bottom: 10px;
    }

    .header-contact {
        display: none;
    }

    .brand-text h1,
    .brand-text .brand-name {
        font-size: 16px;
    }

    .brand-text .brand-tag {
        font-size: 11px;
    }

    .brand-logo {
        width: 40px;
        height: 40px;
        font-size: 16px;
    }

    .main-nav a {
        padding: 12px 4px;
        font-size: 13px;
    }

    .main-nav li {
        min-width: 25%;
        flex: 0 0 25%;
    }

    .main-nav li a {
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .hero h1 {
        font-size: 22px;
    }

    .hero-tags {
        gap: 6px;
    }

    .hero-tag {
        font-size: 12px;
        padding: 4px 10px;
    }

    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }

    .section-title h2 {
        font-size: 20px;
    }

    .grid,
    .grid-2,
    .grid-4 {
        gap: 14px;
    }

    .card,
    .product-card .product-body {
        padding: 16px;
    }

    .cta-box {
        padding: 24px 18px;
    }

    .cta-box h3 {
        font-size: 18px;
    }

    .cta-box .cta-tel {
        font-size: 22px;
    }

    .spec-table th,
    .spec-table td {
        padding: 10px 12px;
        font-size: 13px;
    }

    .faq-item h3 {
        font-size: 15px;
        padding: 14px 16px;
    }

    .faq-item .faq-answer {
        padding: 14px 16px;
        font-size: 14px;
    }

    .footer-grid {
        gap: 24px;
    }

    .highlight-item .num {
        font-size: 24px;
    }
}

@media (max-width: 480px) {
    .main-nav li {
        min-width: 33.33%;
        flex: 0 0 33.33%;
    }

    .hero h1 {
        font-size: 20px;
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-cta .btn {
        width: 100%;
    }
}

/* 资质证件展示 */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 18px;
}

.cert-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s, box-shadow 0.2s;
}

.cert-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(10, 77, 140, 0.15);
}

.cert-card .cert-img-wrap {
    background: #f5f7fa;
    padding: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 4 / 3;
    overflow: hidden;
}

.cert-card .cert-img-wrap img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    display: block;
}

.cert-card .cert-body {
    padding: 14px 16px;
    border-top: 1px solid var(--border);
}

.cert-card .cert-body h3 {
    font-size: 16px;
    color: var(--primary-dark);
    margin-bottom: 6px;
}

.cert-card .cert-body p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
}

@media (max-width: 480px) {
    .cert-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }
    .cert-card .cert-img-wrap {
        aspect-ratio: 4 / 3;
    }
}

/* 工厂实景画廊 */
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
    margin-top: 16px;
}

.gallery-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    transition: transform 0.2s, box-shadow 0.2s;
    text-decoration: none;
    color: inherit;
    display: block;
}

.gallery-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 18px rgba(10, 77, 140, 0.12);
}

.gallery-item .gallery-img {
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: #f5f7fa;
}

.gallery-item .gallery-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s;
}

.gallery-item:hover .gallery-img img {
    transform: scale(1.05);
}

.gallery-item .gallery-caption {
    padding: 10px 14px;
    border-top: 1px solid var(--border);
    font-size: 14px;
    color: var(--text);
    line-height: 1.5;
}

.gallery-item .gallery-caption strong {
    color: var(--primary-dark);
    display: block;
    margin-bottom: 2px;
}

/* 产品实拍区 */
.product-photo {
    margin: 24px 0;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--border);
    background: #f5f7fa;
}

.product-photo img {
    width: 100%;
    height: auto;
    display: block;
}

.product-photo .product-photo-caption {
    padding: 10px 14px;
    background: #fff;
    border-top: 1px solid var(--border);
    color: var(--text-light);
    font-size: 14px;
}

/* 备案号样式 */
.beian {
    color: var(--text-muted);
    font-size: 13px;
    text-decoration: none;
}
.beian:hover {
    color: var(--primary);
}

/* ========== 浮动咨询按钮（右下角常驻 · 全站） ========== */
.floating-cta {
    position: fixed;
    right: 16px;
    bottom: 16px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.floating-cta .fcta-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    text-decoration: none;
    box-shadow: 0 4px 14px rgba(10, 77, 140, 0.35);
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    position: relative;
}
.floating-cta .fcta-btn:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 18px rgba(10, 77, 140, 0.45);
    background: var(--primary-dark);
}
.floating-cta .fcta-btn svg {
    width: 26px;
    height: 26px;
    fill: #fff;
}
.floating-cta .fcta-wechat {
    background: #07c160;
    box-shadow: 0 4px 14px rgba(7, 193, 96, 0.35);
}
.floating-cta .fcta-wechat:hover {
    background: #06a050;
    box-shadow: 0 6px 18px rgba(7, 193, 96, 0.45);
}
.floating-cta .fcta-top {
    background: var(--text-light);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
    width: 44px;
    height: 44px;
}
.floating-cta .fcta-top:hover {
    background: var(--text);
}
.floating-cta .fcta-top svg {
    width: 20px;
    height: 20px;
}
.floating-cta .fcta-label {
    position: absolute;
    right: 64px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.78);
    color: #fff;
    font-size: 13px;
    padding: 6px 12px;
    border-radius: 6px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s ease;
}
.floating-cta .fcta-btn:hover .fcta-label {
    opacity: 1;
}
.floating-cta .fcta-label::after {
    content: '';
    position: absolute;
    right: -4px;
    top: 50%;
    transform: translateY(-50%) rotate(45deg);
    width: 8px;
    height: 8px;
    background: rgba(0, 0, 0, 0.78);
}
/* 微信弹层 */
.fcta-wechat-popup {
    display: none;
    position: fixed;
    right: 84px;
    bottom: 80px;
    z-index: 9998;
    background: #fff;
    padding: 18px;
    border-radius: 10px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
    text-align: center;
    width: 200px;
    border: 1px solid var(--border);
}
.fcta-wechat-popup.show { display: block; }
.fcta-wechat-popup .qr {
    width: 160px;
    height: 160px;
    background: var(--bg-soft);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 10px;
    font-size: 12px;
    color: var(--text-muted);
    border: 1px dashed var(--border);
    border-radius: 6px;
}
.fcta-wechat-popup .qr img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.fcta-wechat-popup .tips {
    font-size: 13px;
    color: var(--text);
    font-weight: 600;
}
.fcta-wechat-popup .num {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* 移动端浮动按钮缩小一些 */
@media (max-width: 480px) {
    .floating-cta {
        right: 10px;
        bottom: 10px;
        gap: 8px;
    }
    .floating-cta .fcta-btn {
        width: 48px;
        height: 48px;
    }
    .floating-cta .fcta-btn svg { width: 22px; height: 22px; }
    .floating-cta .fcta-top { width: 38px; height: 38px; }
    .floating-cta .fcta-label { display: none; }
    .fcta-wechat-popup {
        right: 64px;
        bottom: 70px;
        width: 180px;
        padding: 14px;
    }
    .fcta-wechat-popup .qr { width: 150px; height: 150px; }
}

/* ========== 表格 mobile 横向滚动保护 ========== */
.table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 12px 0;
    border-radius: 6px;
}
.table-wrap table {
    min-width: 100%;
    margin: 0;
}
@media (max-width: 600px) {
    .article-detail table {
        display: block;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        white-space: nowrap;
    }
    .article-detail .spec-table {
        white-space: normal;
    }
}

/* ========== 投诉举报底栏 ========== */
.report-row {
    background: #f5f7fa;
    border-top: 1px solid var(--border);
    padding: 12px 0;
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
    line-height: 1.9;
}
.report-row strong {
    color: var(--text-light);
    font-weight: 600;
}
.report-row .sep { color: var(--border); margin: 0 8px; }

/* ========== 友情链接 ========== */
.friend-links {
    border-top: 1px solid var(--border);
    padding: 16px 0;
    font-size: 13px;
    color: var(--text-muted);
    text-align: center;
}
.friend-links strong { color: var(--text-light); margin-right: 8px; }
.friend-links a {
    color: var(--text-light);
    text-decoration: none;
    margin: 0 6px;
}
.friend-links a:hover { color: var(--primary); text-decoration: underline; }

/* ========== 企业信息一览公示清单 ========== */
.info-disclosure {
    background: linear-gradient(135deg, #f8fbff 0%, #eef4fc 100%);
    border: 1px solid #d4e3f5;
    border-radius: 10px;
    padding: 22px 26px;
    margin: 24px 0;
}
.info-disclosure h3 {
    font-size: 18px;
    color: var(--primary-dark);
    margin-bottom: 14px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-light);
}
.info-disclosure dl {
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 10px 16px;
    font-size: 14px;
    line-height: 1.7;
}
.info-disclosure dt {
    color: var(--text-light);
    font-weight: 600;
}
.info-disclosure dd {
    color: var(--text);
    word-break: break-all;
}
.info-disclosure dd a {
    color: var(--primary);
    text-decoration: none;
}
.info-disclosure dd a:hover { text-decoration: underline; }
@media (max-width: 600px) {
    .info-disclosure { padding: 16px 18px; }
    .info-disclosure dl {
        grid-template-columns: 1fr;
        gap: 4px 0;
    }
    .info-disclosure dt {
        font-weight: 700;
        color: var(--primary-dark);
        margin-top: 6px;
    }
}

/* ========== 采购流程可视化 ========== */
.process-flow {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
    margin: 24px 0;
    counter-reset: stepNum;
}
.process-flow .pf-step {
    flex: 1;
    min-width: 150px;
    background: #fff;
    border: 2px solid var(--border);
    border-radius: 10px;
    padding: 20px 14px 16px;
    text-align: center;
    position: relative;
    transition: border-color .2s ease, transform .2s ease;
}
.process-flow .pf-step:hover {
    border-color: var(--primary);
    transform: translateY(-3px);
}
.process-flow .pf-step::before {
    counter-increment: stepNum;
    content: counter(stepNum);
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    width: 32px;
    height: 32px;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    line-height: 32px;
    font-size: 16px;
    font-weight: 700;
}
.process-flow .pf-step h4 {
    font-size: 15px;
    color: var(--primary-dark);
    margin: 6px 0 6px;
}
.process-flow .pf-step p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
}
.process-flow .pf-arrow {
    align-self: center;
    color: var(--primary-light);
    font-size: 20px;
    font-weight: 700;
    flex: 0 0 auto;
}
@media (max-width: 768px) {
    .process-flow .pf-arrow { display: none; }
    .process-flow .pf-step { min-width: 140px; flex: 1 1 45%; }
}

/* ========== 客户证言 ========== */
.testimonials {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin: 18px 0;
}
.testimonial {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px;
    position: relative;
    border-left: 4px solid var(--primary);
}
.testimonial::before {
    content: '"';
    font-size: 48px;
    color: var(--primary-light);
    line-height: 0.8;
    font-family: serif;
    position: absolute;
    top: 12px;
    right: 16px;
    opacity: 0.3;
}
.testimonial p {
    font-size: 14px;
    color: var(--text);
    line-height: 1.7;
    margin-bottom: 12px;
}
.testimonial .who {
    font-size: 13px;
    color: var(--text-light);
    border-top: 1px solid var(--bg-soft);
    padding-top: 10px;
}
.testimonial .who strong {
    color: var(--primary-dark);
    font-weight: 600;
}
@media (max-width: 768px) {
    .testimonials { grid-template-columns: 1fr; }
}

/* ========== 常见做法 VS 我们做法 ========== */
.vs-table {
    display: grid;
    grid-template-columns: 1fr 80px 1fr;
    gap: 0;
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    margin: 24px 0;
    background: #fff;
}
.vs-table > div {
    padding: 16px 18px;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
    line-height: 1.7;
}
.vs-table .vs-header {
    background: var(--bg-soft);
    font-weight: 700;
    text-align: center;
    color: var(--primary-dark);
    font-size: 15px;
}
.vs-table .vs-bad { color: #6b7280; background: #fafafa; }
.vs-table .vs-good { color: var(--text); }
.vs-table .vs-mid {
    background: var(--primary);
    color: #fff;
    text-align: center;
    font-weight: 700;
    font-size: 14px;
    line-height: 1.4;
}
.vs-table .vs-bad::before { content: '✗ '; color: #ea4335; font-weight: 700; }
.vs-table .vs-good::before { content: '✓ '; color: #10b981; font-weight: 700; }
.vs-table > div:nth-last-child(-n+3) { border-bottom: none; }
@media (max-width: 600px) {
    .vs-table {
        grid-template-columns: 1fr;
    }
    .vs-table .vs-mid {
        padding: 8px;
        font-size: 13px;
    }
    .vs-table .vs-header { font-size: 14px; }
    .vs-table > div { border-bottom: 1px solid var(--border) !important; }
}

/* 公司大楼主图 - about 页 hero 下方 */
.company-building-hero {
    margin: 0 0 18px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(10, 77, 140, 0.12);
    background: var(--bg-soft);
}
.company-building-hero a {
    display: block;
    line-height: 0;
}
.company-building-hero img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform .4s ease;
}
.company-building-hero a:hover img {
    transform: scale(1.02);
}
.company-building-hero figcaption {
    padding: 12px 18px;
    background: #fff;
    color: var(--text-light);
    font-size: 14px;
    text-align: center;
    border-top: 1px solid var(--border);
}

/* 公司大楼卡片 - 首页"为什么选择"区域 */
.company-building-card {
    max-width: 880px;
    margin: 18px auto 30px;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--border);
    background: #fff;
    box-shadow: 0 2px 16px rgba(10, 77, 140, 0.08);
}
.company-building-card a {
    display: block;
    line-height: 0;
}
.company-building-card img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform .4s ease;
}
.company-building-card a:hover img {
    transform: scale(1.02);
}
.company-building-card figcaption {
    padding: 12px 16px;
    color: var(--text-light);
    font-size: 14px;
    text-align: center;
    background: #fafbfc;
}
.company-building-card figcaption a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    display: inline;
    line-height: inherit;
}
.company-building-card figcaption a:hover {
    text-decoration: underline;
}

/* TL;DR 一句话答案盒（AI 引用首段优化） */
.tldr-box {
    background: linear-gradient(135deg, #f8fbff 0%, #eef4fc 100%);
    border-left: 5px solid var(--primary);
    padding: 18px 22px;
    margin: 18px 0;
    border-radius: 6px;
    font-size: 15px;
    line-height: 1.85;
    color: var(--text);
}
.tldr-box strong {
    color: var(--primary);
    font-weight: 700;
    margin-right: 6px;
}
.tldr-box a {
    color: var(--primary);
    text-decoration: underline;
}

/* 相关阅读模块（内链权重池） */
.related-reading {
    margin-top: 40px;
    padding: 22px;
    background: var(--bg-soft);
    border-radius: 10px;
    border: 1px solid var(--border);
}
.related-reading h3 {
    font-size: 17px;
    color: var(--primary);
    margin-bottom: 14px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--primary-light);
}
.related-reading ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.related-reading li {
    padding: 8px 0;
    border-bottom: 1px dashed var(--border);
}
.related-reading li:last-child {
    border-bottom: none;
}
.related-reading li::before {
    content: '▸ ';
    color: var(--accent);
    margin-right: 4px;
}
.related-reading a {
    color: var(--text);
    text-decoration: none;
    font-size: 15px;
}
.related-reading a:hover {
    color: var(--primary);
    text-decoration: underline;
}

@media (max-width: 480px) {
    .gallery {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
    .gallery-item .gallery-caption {
        padding: 8px 10px;
        font-size: 12px;
    }
}