/*
Theme Name: 达平化工
Theme URI: https://www.dapingchem.example/
Description: 面向化工贸易行业的企业官网 WordPress 主题。无购物车、无论坛，专注于品牌展示、产品中心、产品分类与询盘联系。支持在 WordPress 自定义器中修改文字、颜色、字体、页眉、页脚、首页板块与产品数据库。
Version: 1.4.2
Requires at least: 5.8
Tested up to: 6.5
Requires PHP: 7.4
Author: WorkBuddy
Author URI: https://www.workbuddy.ai
Text Domain: daping-chemical
Domain Path: /languages
Tags: custom-colors, custom-logo, custom-menu, editor-style, featured-images, responsive-layout, theme-options, translation-ready, grid-layout
*/

/* =========================================================
   达平化工主题样式
   设计：企业级化工贸易官网 / 蓝色 + 青色 + 橙色行动色
   主题色与字体由 WordPress 自定义器通过 CSS 变量注入
   ========================================================= */

:root {
    --daping-primary: #0b5fa5;
    --daping-secondary: #00a3a3;
    --daping-accent: #ff7a18;
    --daping-text: #2f3a45;
    --daping-heading: #11212f;
    --daping-bg: #ffffff;
    --daping-surface: #f4f7fa;
    --daping-border: #e3e9ef;
    --daping-header-bg: #ffffff;
    --daping-footer-bg: #0f1b26;
    --daping-footer-text: #c7d2dc;
    --daping-link: #0b5fa5;
    --daping-container: 1200px;
    --daping-radius: 8px;
    --daping-button-radius: 6px;
    --daping-font-base: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Source Han Sans CN", sans-serif;
    --daping-font-head: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", "Source Han Sans CN", sans-serif;
    --daping-font-size: 16px;
    --daping-line-height: 1.7;
    --daping-h1: 38px;
    --daping-shadow: 0 8px 30px rgba(17, 33, 47, 0.08);
    --daping-shadow-sm: 0 3px 12px rgba(17, 33, 47, 0.06);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--daping-font-base);
    font-size: var(--daping-font-size);
    line-height: var(--daping-line-height);
    color: var(--daping-text);
    background: var(--daping-bg);
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--daping-link); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--daping-accent); }
h1, h2, h3, h4, h5, h6 {
    font-family: var(--daping-font-head);
    color: var(--daping-heading);
    line-height: 1.25;
    margin: 0 0 .6em;
    font-weight: 700;
}
h1 { font-size: var(--daping-h1); }
h2 { font-size: calc(var(--daping-h1) * 0.7); }
h3 { font-size: calc(var(--daping-h1) * 0.52); }
p { margin: 0 0 1.2em; }
ul, ol { margin: 0 0 1.2em; padding-left: 1.4em; }
blockquote {
    margin: 1.5em 0;
    padding: .8em 1.2em;
    border-left: 4px solid var(--daping-primary);
    background: var(--daping-surface);
    border-radius: var(--daping-radius);
}
table { width: 100%; border-collapse: collapse; margin: 0 0 1.5em; }
th, td { padding: .7em .9em; border: 1px solid var(--daping-border); text-align: left; }
th { background: var(--daping-surface); color: var(--daping-heading); }

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--daping-container); margin: 0 auto; padding: 0 20px; }
.site-content { min-height: 60vh; }
.site-main { padding: 50px 0; }
.section { padding: 64px 0; }
.section-title { text-align: center; margin-bottom: 8px; }
.section-subtitle { text-align: center; color: var(--daping-secondary); font-weight: 600; margin-bottom: 36px; letter-spacing: .5px; }
.bg-surface { background: var(--daping-surface); }
.grid { display: grid; gap: 26px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.screen-reader-text {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0,0,0,0); border: 0;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-block;
    padding: 12px 26px;
    border-radius: var(--daping-button-radius);
    font-weight: 600;
    font-family: var(--daping-font-head);
    cursor: pointer;
    border: 2px solid transparent;
    transition: all .2s ease;
    line-height: 1.2;
}
.btn-primary { background: var(--daping-primary); color: #fff; }
.btn-primary:hover { background: var(--daping-heading); color: #fff; }
.btn-accent { background: var(--daping-accent); color: #fff; }
.btn-accent:hover { background: #e96a07; color: #fff; }
.btn-outline { background: transparent; border-color: var(--daping-primary); color: var(--daping-primary); }
.btn-outline:hover { background: var(--daping-primary); color: #fff; }
.btn-ghost { background: rgba(255,255,255,.15); color: #fff; border-color: rgba(255,255,255,.6); }
.btn-ghost:hover { background: #fff; color: var(--daping-primary); }
.btn-sm { padding: 8px 16px; font-size: .9em; }

/* ---------- Top bar ---------- */
.topbar { background: var(--daping-heading); color: #d7e0e8; font-size: 13px; }
.topbar-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; padding: 8px 20px; }
.topbar a { color: #d7e0e8; }
.topbar a:hover { color: #fff; }
.topbar-right { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.topbar-nav ul { display: flex; gap: 14px; list-style: none; margin: 0; padding: 0; }

/* ---------- Header（邦森式） ---------- */
.site-header {
    background: var(--daping-header-bg);
    border-bottom: 1px solid var(--daping-border);
    position: relative;
    z-index: 50;
}
.site-header.sticky { position: sticky; top: 0; box-shadow: var(--daping-shadow-sm); }
.site-header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 16px 20px; }
.site-branding { display: flex; flex-direction: column; flex-shrink: 0; }
.site-branding .custom-logo { max-height: 56px; width: auto; }
.site-title { font-family: var(--daping-font-head); font-size: 26px; font-weight: 900; color: var(--daping-primary); letter-spacing: 1px; line-height: 1; text-decoration: none; }
.site-description { font-size: 12px; color: var(--daping-secondary); letter-spacing: 1.5px; font-weight: 500; }
.header-search-inline { flex: 1; max-width: 520px; margin: 0 auto; }
.header-search-inline .search-form { display: flex; }
.header-search-inline .search-field {
    flex: 1; min-width: 0; padding: 11px 16px; border: 2px solid var(--daping-primary);
    border-right: none; border-radius: var(--daping-button-radius) 0 0 var(--daping-button-radius);
    font-size: 14px; outline: none;
}
.header-search-inline .search-submit {
    padding: 0 22px; border: none; background: var(--daping-primary); color: #fff;
    border-radius: 0 var(--daping-button-radius) var(--daping-button-radius) 0; cursor: pointer;
    position: relative; font-size: 15px;
}
.header-search-inline .search-submit::before { content: "🔍"; }
.header-contact { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.header-contact-icon {
    width: 42px; height: 42px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
    background: var(--daping-primary); color: #fff; font-size: 20px;
}
.header-contact-label { font-size: 12px; color: var(--daping-text); opacity: .75; }
.header-contact-phone { font-size: 20px; font-weight: 800; color: var(--daping-primary); white-space: nowrap; }
.menu-toggle { display: none; background: none; border: none; font-size: 24px; cursor: pointer; color: var(--daping-heading); }

/* 主导航栏（下拉菜单） */
.main-navigation { background: var(--daping-header-bg); border-top: 1px solid var(--daping-border); }
.main-navigation > .container > ul { display: flex; list-style: none; margin: 0; padding: 0; }
.main-navigation > .container > ul > li { position: relative; margin: 0; }
.main-navigation > .container > ul > li > a {
    display: block; padding: 14px 22px; color: var(--daping-heading); font-weight: 600; font-size: 16px;
}
.main-navigation > .container > ul > li.current-menu-item > a,
.main-navigation > .container > ul > li.current_page_item > a,
.main-navigation > .container > ul > li:hover > a {
    background: var(--daping-primary); color: #fff;
}
.main-navigation li { margin: 0; }
.main-navigation ul ul {
    position: absolute; left: 0; top: 100%; min-width: 190px; background: #fff;
    border: 1px solid var(--daping-border); border-top: 2px solid var(--daping-primary);
    box-shadow: var(--daping-shadow); list-style: none; margin: 0; padding: 6px 0;
    display: none; z-index: 99;
}
.main-navigation li:hover > ul, .main-navigation li.focus > ul { display: block; }
.main-navigation ul ul li { position: relative; }
.main-navigation ul ul a {
    display: block; padding: 10px 16px; color: var(--daping-text); font-weight: 400; font-size: 14px;
}
.main-navigation ul ul a:hover { background: var(--daping-surface); color: var(--daping-primary); }
.main-navigation ul ul ul { left: 100%; top: -7px; }
@media (max-width: 980px) {
    .header-search-inline { flex: 1 1 100%; max-width: none; order: 4; margin: 10px 0 2px; }
    .site-header-inner { flex-wrap: wrap; }
    .header-contact { margin-left: auto; }
}

/* ---------- Hero (首页) ---------- */
.hero {
    position: relative;
    color: #fff;
    padding: 110px 0;
    background-size: cover;
    background-position: center;
    background-color: var(--daping-primary);
}
.hero::before {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(120deg, rgba(11,95,165,.92), rgba(15,27,38,.78));
}
.hero .container { position: relative; z-index: 2; }
.hero-inner { max-width: 720px; }
.hero h1 { color: #fff; font-size: calc(var(--daping-h1) * 1.4); margin-bottom: .3em; }
.hero p { font-size: 1.15em; opacity: .95; margin-bottom: 1.6em; }
.hero-buttons { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Stats ---------- */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.stat-item { padding: 26px 16px; border-radius: var(--daping-radius); background: #fff; box-shadow: var(--daping-shadow-sm); }
.stat-num { font-size: 2.4em; font-weight: 800; color: var(--daping-primary); font-family: var(--daping-font-head); }
.stat-label { color: var(--daping-text); font-size: .95em; }

/* ---------- Intro / Features ---------- */
.intro-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center; }
.feature-list { list-style: none; padding: 0; margin: 0; }
.feature-list li { padding: 12px 0 12px 38px; position: relative; border-bottom: 1px dashed var(--daping-border); }
.feature-list li::before { content: "✓"; position: absolute; left: 0; top: 12px; width: 24px; height: 24px; background: var(--daping-secondary); color: #fff; border-radius: 50%; text-align: center; line-height: 24px; font-size: 13px; }

/* ---------- Product cards ---------- */
.product-card {
    background: #fff; border-radius: var(--daping-radius); overflow: hidden;
    box-shadow: var(--daping-shadow-sm); border: 1px solid var(--daping-border);
    transition: transform .25s ease, box-shadow .25s ease; display: flex; flex-direction: column;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--daping-shadow); }
.product-thumb { aspect-ratio: 4/3; overflow: hidden; background: #f4f6f9; display: flex; align-items: center; justify-content: center; padding: 10px; }
.product-thumb a { display: flex; align-items: center; justify-content: center; width: 100%; height: 100%; }
.product-thumb img { max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; }
.product-body { padding: 18px 20px 22px; display: flex; flex-direction: column; flex: 1; }
.product-cat { font-size: 12px; color: var(--daping-secondary); font-weight: 600; letter-spacing: .5px; margin-bottom: 6px; }
.product-title { font-size: 1.15em; margin: 0 0 8px; line-height: 1.4; }
.product-title a { color: var(--daping-heading); }
.product-excerpt { font-size: .92em; color: var(--daping-text); margin-bottom: 14px; line-height: 1.55; flex: 1; }
.product-meta { font-size: .82em; color: #7a8693; margin-top: auto; }

/* 产品卡片按钮：始终贴底对齐 */
.product-body .btn { margin-top: auto; align-self: flex-start; min-width: 140px; text-align: center; }
.grid-1 .product-body .btn { align-self: stretch; }
@media (max-width: 760px) {
    .product-body .btn { align-self: stretch; }
}

/* ---------- Category cards ---------- */
.cat-card {
    display: block; padding: 28px 24px; border-radius: var(--daping-radius);
    background: linear-gradient(135deg, var(--daping-primary), var(--daping-secondary));
    color: #fff; box-shadow: var(--daping-shadow-sm); transition: transform .25s ease;
}
.cat-card:hover { transform: translateY(-5px); color: #fff; }
.cat-card h3 { color: #fff; margin: 0 0 6px; }
.cat-card .count { font-size: .85em; opacity: .85; }
.cat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 20px; }

/* ---------- News cards ---------- */
.news-card { background: #fff; border-radius: var(--daping-radius); overflow: hidden; box-shadow: var(--daping-shadow-sm); border: 1px solid var(--daping-border); }
.news-thumb { aspect-ratio: 16/9; overflow: hidden; background: var(--daping-surface); }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-body { padding: 16px 18px; }
.news-body h3 { font-size: 1.05em; margin: 0 0 8px; }
.news-body h3 a { color: var(--daping-heading); }
.news-date { font-size: .8em; color: #7a8693; }

/* ---------- CTA band ---------- */
.cta-band { background: linear-gradient(120deg, var(--daping-primary), var(--daping-secondary)); color: #fff; text-align: center; }
.cta-band h2 { color: #fff; }
.cta-band p { opacity: .95; max-width: 640px; margin: 0 auto 22px; }

/* ---------- Breadcrumbs ---------- */
.breadcrumbs { font-size: 13px; color: #7a8693; padding: 16px 0; }
.breadcrumbs a { color: var(--daping-link); }
.breadcrumbs span.sep { margin: 0 8px; color: var(--daping-border); }

/* ---------- Page header ---------- */
.page-header { background: linear-gradient(120deg, var(--daping-primary), var(--daping-secondary)); color: #fff; padding: 56px 0; }
.page-header h1 { color: #fff; margin: 0; }
.page-header .sub { opacity: .9; margin-top: 8px; }

/* ---------- Product single ---------- */
.product-hero { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.product-gallery { border-radius: var(--daping-radius); overflow: hidden; box-shadow: var(--daping-shadow-sm); }
.specs-table { margin-top: 10px; }
.specs-table th { width: 34%; white-space: nowrap; }
.product-side { background: var(--daping-surface); border-radius: var(--daping-radius); padding: 24px; }
.product-side .btn { width: 100%; text-align: center; margin-bottom: 10px; }
.product-section { margin-top: 40px; }
.tag-pills { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.tag-pill { background: var(--daping-surface); border: 1px solid var(--daping-border); border-radius: 30px; padding: 4px 14px; font-size: .85em; color: var(--daping-primary); }

/* ---------- Sidebar ---------- */
.has-sidebar { display: grid; grid-template-columns: 1fr 300px; gap: 40px; align-items: start; }
.sidebar .widget { background: #fff; border: 1px solid var(--daping-border); border-radius: var(--daping-radius); padding: 20px; margin-bottom: 22px; }
.sidebar .widget-title { font-size: 1.1em; margin: 0 0 14px; padding-bottom: 10px; border-bottom: 2px solid var(--daping-primary); }
.sidebar ul { list-style: none; padding: 0; margin: 0; }
.sidebar ul li { padding: 8px 0; border-bottom: 1px dashed var(--daping-border); }
.product-filter label { display: block; padding: 6px 0; font-weight: 500; }
.product-filter input { margin-right: 8px; }

/* ---------- Forms ---------- */
.daping-form { max-width: 720px; }
.daping-form .form-row { margin-bottom: 18px; }
.daping-form label { display: block; font-weight: 600; margin-bottom: 6px; color: var(--daping-heading); }
.daping-form input[type="text"],
.daping-form input[type="email"],
.daping-form input[type="tel"],
.daping-form input[type="url"],
.daping-form textarea,
.daping-form select {
    width: 100%; padding: 12px 14px; border: 1px solid var(--daping-border);
    border-radius: var(--daping-button-radius); font-family: inherit; font-size: 1em; background: #fff; color: var(--daping-text);
}
.daping-form input:focus, .daping-form textarea:focus { outline: none; border-color: var(--daping-primary); box-shadow: 0 0 0 3px rgba(11,95,165,.12); }
.daping-form textarea { min-height: 140px; }
.form-note { font-size: .85em; color: #7a8693; }
.form-message { padding: 14px 18px; border-radius: var(--daping-radius); margin-bottom: 20px; }
.form-message.success { background: #e6f7ee; color: #0a7a45; border: 1px solid #b7e6cd; }
.form-message.error { background: #fdecec; color: #c0392b; border: 1px solid #f5c2c2; }
.form-hp { position: absolute; left: -9999px; }

/* ---------- Widgets (footer) ---------- */
.footer-widgets { display: grid; gap: 30px; padding: 54px 20px 30px; }
.footer-widgets.columns-1 { grid-template-columns: 1fr; }
.footer-widgets.columns-2 { grid-template-columns: repeat(2, 1fr); }
.footer-widgets.columns-3 { grid-template-columns: repeat(3, 1fr); }
.footer-widgets.columns-4 { grid-template-columns: repeat(4, 1fr); }
.site-footer { background: var(--daping-footer-bg); color: var(--daping-footer-text); margin-top: 0; }
.site-footer h3, .site-footer h2, .site-footer .widget-title { color: #fff; font-size: 1.1em; margin: 0 0 16px; }
.site-footer a { color: var(--daping-footer-text); }
.site-footer a:hover { color: #fff; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer ul li { padding: 6px 0; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 18px 0; font-size: 13px; }
.footer-bottom-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; }
.social-links { display: flex; gap: 12px; flex-wrap: wrap; }
.social-links a {
    width: 38px; height: 38px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center;
    background: rgba(255,255,255,.1); color: #fff; font-size: 15px; transition: background .2s ease;
}
.social-links a:hover { background: var(--daping-accent); color: #fff; }

/* ---------- Pagination ---------- */
.pagination { display: flex; gap: 8px; justify-content: center; margin: 40px 0; flex-wrap: wrap; }
.pagination a, .pagination span {
    padding: 8px 14px; border: 1px solid var(--daping-border); border-radius: var(--daping-button-radius); color: var(--daping-heading);
}
.pagination .current { background: var(--daping-primary); color: #fff; border-color: var(--daping-primary); }

/* ---------- 404 / Search ---------- */
.no-results { text-align: center; padding: 40px 0; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .intro-grid, .product-hero, .has-sidebar { grid-template-columns: 1fr; }
    .footer-widgets.columns-4, .footer-widgets.columns-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
    .menu-toggle { display: block; }
    .main-navigation { display: none; }
    .main-navigation.active { display: block; }
    .main-navigation > .container > ul { flex-direction: column; padding: 6px 16px; }
    .main-navigation > .container > ul > li > a { padding: 12px 0; border-bottom: 1px solid var(--daping-border); }
    .main-navigation li.current-menu-item > a { background: transparent; color: var(--daping-primary); }
    .main-navigation ul ul { position: static; box-shadow: none; border: 0; border-left: 2px solid var(--daping-border); margin-left: 14px; display: block; min-width: 0; }
    .header-contact { display: none; }
    .menu-toggle { display: block; border: 1px solid var(--daping-border); border-radius: 8px; padding: 8px 14px; font-size: 20px; background: var(--daping-primary); color: #fff; cursor: pointer; }
    .menu-toggle-text { display: inline-block; font-size: 14px; margin-left: 6px; }
    .site-branding { flex: 1 1 auto; min-width: 0; }
    .site-title { font-size: 22px; }
    .site-description { display: none; }
    .site-header-inner { padding: 10px 14px; gap: 12px; }
    .header-search-inline { order: 5; flex-basis: 100%; margin: 8px 0 0; }
    .header-search-inline .search-field { padding: 10px 14px; font-size: 14px; }
    .main-navigation > .container > ul { padding: 6px 16px 14px; }
    .main-navigation > .container > ul > li > a { font-size: 15px; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .footer-widgets.columns-2, .footer-widgets.columns-3, .footer-widgets.columns-4 { grid-template-columns: 1fr; }
    .hero { padding: 70px 0; }
    .hero h1 { font-size: calc(var(--daping-h1) * 1.05); }
    .section { padding: 44px 0; }
}

/* ---------- 补充规则 ---------- */
.grid-1 { grid-template-columns: 1fr; }
.site-header.sticky.scrolled { box-shadow: var(--daping-shadow); }
.contact-map { margin-top: 26px; border-radius: var(--daping-radius); overflow: hidden; border: 1px solid var(--daping-border); }
.contact-map iframe { width: 100%; border: 0; display: block; min-height: 340px; }
.contact-info p { margin-bottom: 8px; }
/* 列表布局下的产品卡片横向排列 */
.grid-1 .product-card { flex-direction: row; align-items: stretch; }
.grid-1 .product-card .product-thumb { width: 240px; flex: 0 0 240px; }
@media (max-width: 760px) {
    .grid-1 .product-card { flex-direction: column; }
    .grid-1 .product-card .product-thumb { width: 100%; }
}

/* =========================================================
   邦森式布局扩展（轮播 / 产品中心 / 优势 / 关于 / 新闻 / 浮动客服）
   ========================================================= */

/* ---------- 主视觉轮播 ---------- */
.daping-slider { position: relative; overflow: hidden; background: var(--daping-heading); }
.daping-slides { display: flex; transition: transform .6s ease; }
.daping-slide {
    min-width: 100%;
    background-size: cover;
    background-position: center;
    padding: 110px 0;
    position: relative;
    display: none;
}
.daping-slide.is-active { display: block; }
.daping-slide::before { content: ''; position: absolute; inset: 0; background: rgba(10, 25, 41, 0.45); }
.daping-slide .container { position: relative; z-index: 1; }
.daping-slide-inner { max-width: 640px; }
.daping-slide-inner h1 { color: #fff; margin-bottom: 14px; }
.daping-slide-inner p { color: rgba(255,255,255,.9); font-size: 18px; margin-bottom: 26px; }
.daping-slide-arrow {
    position: absolute; top: 50%; transform: translateY(-50%);
    width: 44px; height: 44px; border: 0; border-radius: 50%;
    background: rgba(255,255,255,.2); color: #fff; font-size: 26px; line-height: 1;
    cursor: pointer; opacity: 0; transition: opacity .25s, background .25s; z-index: 2;
}
.daping-slide-arrow:hover { background: var(--daping-primary); }
.daping-slider:hover .daping-slide-arrow { opacity: 1; }
.daping-slide-arrow.prev { left: 18px; }
.daping-slide-arrow.next { right: 18px; }
.daping-slide-dots { position: absolute; bottom: 18px; left: 0; right: 0; display: flex; justify-content: center; gap: 8px; z-index: 2; }
.daping-slide-dot {
    width: 10px; height: 10px; border-radius: 50%; border: 0; padding: 0;
    background: rgba(255,255,255,.45); cursor: pointer; transition: background .2s, transform .2s;
}
.daping-slide-dot.is-active { background: #fff; transform: scale(1.25); }

/* ---------- 产品中心板块（左分类 + 特色 + 轮播） ---------- */
.pc-layout { display: grid; grid-template-columns: 260px 1fr; gap: 28px; align-items: start; }
.pc-sidebar { background: #fff; border: 1px solid var(--daping-border); border-radius: var(--daping-radius); overflow: hidden; }
.pc-sidebar-head { background: var(--daping-primary); color: #fff; padding: 16px 18px; }
.pc-sidebar-head h3 { color: #fff; margin: 0; font-size: 18px; }
.pc-sidebar-head span { font-size: 12px; opacity: .75; letter-spacing: 1px; }
.pc-cat-menu { list-style: none; margin: 0; padding: 8px; }
.pc-cat-menu li { margin: 0; }
.pc-cat-menu a {
    display: block; padding: 11px 12px; color: var(--daping-text);
    border-radius: calc(var(--daping-radius) - 2px); font-size: 15px;
    cursor: pointer; transition: all .2s;
}
.pc-cat-menu a:hover { background: var(--daping-surface); color: var(--daping-primary); }
.pc-cat-menu li.active a { background: var(--daping-primary); color: #fff; }
.pc-feature {
    display: grid; grid-template-columns: 300px 1fr; gap: 22px; background: #fff;
    border: 1px solid var(--daping-border); border-radius: var(--daping-radius);
    padding: 20px; margin-bottom: 24px; align-items: center;
}
.pc-feature-img {
    display: flex; align-items: center; justify-content: center;
    width: 300px; height: 300px; flex-shrink: 0;
    border-radius: calc(var(--daping-radius) - 2px); overflow: hidden;
    background: #f4f6f9; padding: 12px;
}
.pc-feature-img img { max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; display: block; }
.pc-feature-info h3 { font-size: 20px; margin-bottom: 8px; }
.pc-feature-info h3 a { color: var(--daping-heading); }
.pc-feature-info h3 a:hover { color: var(--daping-primary); }
.pc-feature-info p { color: var(--daping-text); font-size: 14px; margin-bottom: 14px; }
.pc-carousel { display: flex; align-items: center; gap: 10px; }
.pc-car-viewport { overflow: hidden; flex: 1; }
.pc-car-track { display: flex; gap: 20px; transition: transform .5s ease; }
.pc-car-item { flex: 0 0 calc((100% - 40px) / 3); }
.pc-car-img {
    display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--daping-border); border-radius: var(--daping-radius);
    overflow: hidden; background: #f4f6f9; aspect-ratio: 1/1; padding: 10px;
}
.pc-car-img img { max-width: 100%; max-height: 100%; width: auto; height: auto; object-fit: contain; transition: transform .4s; }
.pc-car-item:hover .pc-car-img img { transform: scale(1.05); }
.pc-car-noimg { display: block; width: 100%; height: 100%; }
.pc-car-item h4 { font-size: 15px; margin: 10px 0 0; text-align: center; }
.pc-car-item h4 a { color: var(--daping-heading); }
.pc-car-item h4 a:hover { color: var(--daping-primary); }
.pc-car-btn {
    flex: 0 0 36px; width: 36px; height: 36px; border-radius: 50%;
    border: 1px solid var(--daping-border); background: #fff; color: var(--daping-heading);
    font-size: 20px; line-height: 1; cursor: pointer; transition: all .2s;
}
.pc-car-btn:hover { background: var(--daping-primary); border-color: var(--daping-primary); color: #fff; }
@media (max-width: 820px) { .pc-car-item { flex-basis: calc((100% - 20px) / 2); } }
@media (max-width: 520px) { .pc-car-item { flex-basis: 100%; } }

/* ---------- 我们的优势（编号卡） ---------- */
.adv-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-bottom: 40px; }
.adv-card {
    position: relative; background: #fff; border: 1px solid var(--daping-border);
    border-radius: var(--daping-radius); padding: 34px 22px 24px; transition: box-shadow .2s, transform .2s;
}
.adv-card:hover { box-shadow: var(--daping-shadow); transform: translateY(-3px); }
.adv-num {
    position: absolute; top: 14px; right: 18px; font-size: 34px; font-weight: 700;
    color: var(--daping-primary); opacity: .16; line-height: 1;
}
.adv-title { font-size: 17px; margin-bottom: 8px; }
.adv-desc { font-size: 14px; color: var(--daping-text); margin: 0; }
.advantages-sec .stats-grid { margin-top: 8px; }

/* ---------- 关于我们 ---------- */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; }
.about-title-box { margin-bottom: 16px; }
.about-en { display: block; font-size: 30px; font-weight: 700; color: var(--daping-primary); opacity: .18; letter-spacing: 2px; line-height: 1; }
.about-cn { font-size: 26px; margin: 4px 0 0; }
.about-text p { color: var(--daping-text); }
.about-btn { margin-top: 6px; }
.about-right img { border-radius: var(--daping-radius); box-shadow: var(--daping-shadow); }

/* ---------- 新闻动态（头条 + 列表） ---------- */
.news-layout { display: grid; grid-template-columns: 1.1fr 1fr; gap: 28px; align-items: stretch; }
.news-featured-link {
    display: block; position: relative; border-radius: var(--daping-radius);
    overflow: hidden; height: 100%; min-height: 320px; background: var(--daping-heading);
}
.news-featured-link img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.news-featured-overlay {
    position: absolute; inset: auto 0 0 0; padding: 22px;
    background: linear-gradient(transparent, rgba(10, 25, 41, .88));
}
.news-featured-overlay .news-tag {
    display: inline-block; background: var(--daping-accent); color: #fff;
    font-size: 12px; padding: 3px 10px; border-radius: 4px; margin-bottom: 10px;
}
.news-featured-overlay h3 { color: #fff; font-size: 20px; margin-bottom: 8px; }
.news-featured-overlay p { color: rgba(255,255,255,.85); font-size: 14px; margin-bottom: 8px; }
.news-meta { color: rgba(255,255,255,.7); font-size: 13px; }
.news-list { display: flex; flex-direction: column; gap: 16px; }
.news-item {
    background: #fff; border: 1px solid var(--daping-border);
    border-radius: var(--daping-radius); padding: 18px 20px; flex: 1;
}
.news-item-head { display: flex; justify-content: space-between; align-items: baseline; gap: 14px; }
.news-item-head h4 { font-size: 16px; margin: 0 0 6px; }
.news-item-head h4 a { color: var(--daping-heading); }
.news-item-head h4 a:hover { color: var(--daping-primary); }
.news-date { color: var(--daping-secondary); font-size: 13px; white-space: nowrap; }
.news-item p { font-size: 14px; color: var(--daping-text); margin: 0; }

/* ---------- 页脚二维码 ---------- */
.footer-qr-box { text-align: center; }
.footer-qr-box img { width: 120px; height: 120px; object-fit: cover; border-radius: 6px; margin: 0 auto 10px; background: #fff; padding: 6px; }
.footer-qr-box p { font-size: 13px; line-height: 1.6; }
.footer-qr-box p span { opacity: .7; font-size: 12px; }

/* ---------- 浮动客服面板 ---------- */
.daping-float { position: fixed; right: 18px; bottom: 90px; z-index: 999; }
.daping-float-collapsed {
    width: 52px; padding: 12px 6px; background: var(--daping-primary); color: #fff;
    border-radius: 10px; text-align: center; cursor: pointer; box-shadow: var(--daping-shadow);
}
.daping-float-collapsed-icon { display: block; font-size: 18px; }
.daping-float-collapsed-text { display: block; font-size: 12px; margin-top: 4px; writing-mode: vertical-lr; margin: 6px auto 0; }
.daping-float-expanded {
    width: 240px; background: #fff; border-radius: 12px; overflow: hidden;
    box-shadow: var(--daping-shadow); border: 1px solid var(--daping-border);
}
.daping-float-header {
    display: flex; justify-content: space-between; align-items: center;
    background: var(--daping-primary); color: #fff; padding: 12px 14px;
}
.daping-float-header h3 { color: #fff; margin: 0; font-size: 16px; }
.daping-float-header span { font-size: 11px; opacity: .75; letter-spacing: 1px; }
.daping-float-close { background: none; border: 0; color: #fff; font-size: 15px; cursor: pointer; opacity: .8; }
.daping-float-close:hover { opacity: 1; }
.daping-float-body { padding: 16px 14px; text-align: center; }
.daping-float-name { font-size: 15px; color: var(--daping-heading); margin-bottom: 6px; }
.daping-float-phone-label { font-size: 12px; color: var(--daping-text); opacity: .7; }
.daping-float-phone { display: block; font-size: 18px; font-weight: 700; color: var(--daping-primary); margin: 4px 0 10px; }
.daping-float-qr img { width: 130px; height: 130px; object-fit: cover; border: 1px solid var(--daping-border); border-radius: 8px; }
.daping-float-qr p { font-size: 12px; color: var(--daping-text); margin: 8px 0 0; }
.daping-backtop {
    display: flex; align-items: center; justify-content: center; gap: 6px;
    width: 100%; padding: 10px; border: 0; border-top: 1px solid var(--daping-border);
    background: var(--daping-surface); color: var(--daping-heading); font-size: 13px; cursor: pointer;
}
.daping-backtop:hover { background: var(--daping-primary); color: #fff; }
.daping-backtop-arrow { font-size: 14px; }

/* ---------- 响应式（新增板块） ---------- */
@media (max-width: 980px) {
    .pc-layout, .news-layout, .about-grid { grid-template-columns: 1fr; }
    .adv-grid { grid-template-columns: repeat(2, 1fr); }
    .pc-feature { grid-template-columns: 1fr; }
    .news-featured-link { min-height: 260px; }
}
@media (max-width: 760px) {
    .daping-slide { padding: 72px 0; }
    .adv-grid { grid-template-columns: 1fr; }
    .daping-float { right: 10px; bottom: 70px; }
    .daping-float-expanded { width: 210px; }
}

/* ===== 每日行情导航高亮（达平化工） ===== */
.main-navigation > .container > ul > li.menu-highlight > a {
    background: var(--daping-accent);
    color: #ffffff;
    font-weight: 800;
    border-radius: 22px;
    margin: 7px 10px;
    padding: 7px 22px;
    box-shadow: 0 2px 8px rgba(255,122,24,.35);
}
.main-navigation > .container > ul > li.menu-highlight > a:hover,
.main-navigation > .container > ul > li.menu-highlight > a:focus {
    background: #e5630a;
    color: #ffffff;
}
@media (max-width: 980px) {
    .main-navigation > .container > ul > li.menu-highlight > a {
        margin: 6px 0;
        border-radius: 8px;
        padding: 10px 16px;
    }
}