/*
Theme Name: Eco Mono 靛蓝单色
Theme URI: https://example.com/themes/eco-mono
Author: Chengdu Eco Themes
Author URI: https://example.com
Description: 靛蓝单色风环保设备主题。全站只用一个色相的深浅阶：靛蓝墨块、淡蓝底纹与粗色条，纯平面无阴影，克制而笃定，适合想用极强一致性传递专业专注形象的环保设备代理商。内置产品设备文章类型与设备分类法。
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.8
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: eco-mono
Tags: indigo, monochrome, flat, minimal, custom-menu, custom-logo, featured-images
*/

/* ===== 共享基础（结构与常规组件，取色来自本主题 :root 变量） ===== */
.screen-reader-text{border:0;clip-path:inset(50%);height:1px;width:1px;margin:-1px;overflow:hidden;padding:0;position:absolute}
.skip-link{position:absolute;left:-9999px;background:var(--c-ink);color:#fff;padding:8px 16px;z-index:999}
.skip-link:focus{left:0;top:0;clip-path:none;width:auto;height:auto}
.wrap{width:100%;max-width:1160px;margin:0 auto;padding:0 22px}
.section{padding:64px 0}
img{max-width:100%;height:auto}
.article-wrap{max-width:820px}
.single-thumb img{border-radius:var(--r);margin-bottom:22px;width:100%}
.entry-content{font-size:15.5px}
.entry-content h2{font-size:23px;margin-top:1.7em}
.entry-content h3{font-size:19px;margin-top:1.4em}
.entry-content ul,.entry-content ol{padding-left:1.4em}
.entry-content blockquote{margin:1.5em 0;padding:14px 20px;border-left:4px solid var(--c-primary);background:var(--c-bg);color:var(--c-muted);border-radius:0 var(--r) var(--r) 0}
.entry-content table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:14px}
.entry-content th,.entry-content td{border:1px solid var(--c-line);padding:10px 14px;text-align:left}
.entry-content th{background:var(--c-bg);color:var(--c-primary);font-weight:600}
.entry-content img{border-radius:var(--r)}
.alignleft{float:left;margin:0 20px 12px 0}
.alignright{float:right;margin:0 0 12px 20px}
.aligncenter{display:block;margin:0 auto 12px}
.page-links{margin-top:1.5em}
/* 设备网格结构 */
.equipment-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.eq-card{display:flex;flex-direction:column;overflow:hidden}
.eq-thumb{display:block;aspect-ratio:16/11;overflow:hidden;position:relative;background:var(--c-bg)}
.eq-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.eq-card:hover .eq-thumb img{transform:scale(1.04)}
.thumb-placeholder{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:44px;font-weight:700;color:var(--c-primary);opacity:.3}
.eq-body{padding:16px 18px 18px;display:flex;flex-direction:column;flex:1;gap:6px}
.eq-terms{font-size:12px;color:var(--c-primary)}
.eq-terms a{color:inherit}
.eq-title{font-size:16px;margin:0;flex:1}
.eq-title a{color:var(--c-ink)}
.eq-title a:hover{color:var(--c-primary)}
.eq-more{font-size:13px;font-weight:600;color:var(--c-primary);margin-top:6px}
/* 筛选 */
.equipment-filter{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.filter-pill{padding:8px 20px;border:1px solid var(--c-line);font-size:14px;color:var(--c-ink);background:var(--c-card);border-radius:var(--r-pill)}
.filter-pill:hover{border-color:var(--c-primary);color:var(--c-primary)}
.filter-pill.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.no-results{background:var(--c-bg);border-radius:var(--r);padding:36px;text-align:center;color:var(--c-muted)}
/* 文章列表 */
.post-list{display:grid;gap:18px}
.entry-meta{font-size:12px;color:var(--c-muted);margin-bottom:6px}
.entry-meta .meta-type{display:inline-block;background:var(--c-bg);color:var(--c-primary);border-radius:4px;padding:1px 8px;margin-right:8px;font-weight:600}
.post-item .entry-title{font-size:18px;margin:0 0 4px}
.post-item .entry-title a{color:var(--c-ink)}
.post-item .entry-title a:hover{color:var(--c-primary)}
.post-item .entry-summary{font-size:14px;color:var(--c-muted);margin:0}
/* 联系条结构 */
.contact-strip{margin-top:48px;display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap;padding:30px 34px;border-radius:var(--r)}
.contact-strip h3{margin:0 0 4px;font-size:20px}
.contact-strip p{margin:0;font-size:14px}
.contact-strip-actions{display:flex;gap:12px;flex-wrap:wrap}
.related-title{font-size:23px;margin:52px 0 20px}
/* 搜索表单 */
.search-form{display:flex;gap:8px;max-width:460px}
.search-label{flex:1;display:flex}
.search-field{flex:1;min-width:0;padding:11px 14px;border:1px solid var(--c-line);border-radius:var(--r);font-size:14px;font-family:inherit;background:var(--c-card);color:var(--c-ink)}
.search-field:focus{outline:none;border-color:var(--c-primary)}
.search-submit{padding:11px 22px;border:0;border-radius:var(--r);background:var(--c-primary);color:#fff;font-size:14px;cursor:pointer;font-family:inherit}
.search-submit:hover{background:var(--c-primary-2)}
/* 分页 */
.navigation.pagination{margin-top:40px}
.nav-links{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.nav-links .page-numbers{display:inline-flex;min-width:40px;height:40px;align-items:center;justify-content:center;padding:0 13px;border:1px solid var(--c-line);border-radius:var(--r);color:var(--c-ink);font-size:14px;background:var(--c-card)}
.nav-links .page-numbers.current{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.nav-links a.page-numbers:hover{border-color:var(--c-primary);color:var(--c-primary)}
/* 评论 */
.comments-area{margin-top:48px;padding-top:36px;border-top:1px solid var(--c-line)}
.comments-title{font-size:20px}
.comment-list{list-style:none;margin:0 0 24px;padding:0}
.comment-list .comment{border-bottom:1px solid var(--c-line);padding:15px 0}
.comment-list .children{list-style:none;padding-left:28px}
.comment-author{font-weight:600;font-size:14px;color:var(--c-ink)}
.comment-author .avatar{border-radius:50%;vertical-align:middle;margin-right:8px}
.comment-metadata{font-size:12px;color:var(--c-muted);margin:2px 0 6px}
.comment-content{font-size:14px}
.comment-form label{display:block;font-size:13px;margin-bottom:4px;color:var(--c-ink)}
.comment-form input[type="text"],.comment-form input[type="email"],.comment-form input[type="url"],.comment-form textarea{width:100%;padding:11px 14px;border:1px solid var(--c-line);border-radius:var(--r);font-family:inherit;font-size:14px;margin-bottom:13px;background:var(--c-card);color:var(--c-ink)}
.comment-form input:focus,.comment-form textarea:focus{outline:none;border-color:var(--c-primary)}
.comment-form .submit{padding:12px 28px;border:0;border-radius:var(--r);background:var(--c-primary);color:#fff;font-size:15px;cursor:pointer;font-family:inherit}
.comment-form .submit:hover{background:var(--c-primary-2)}
/* 404 */
.error-404{padding:90px 0;text-align:center}
.error-code{font-size:96px;font-weight:800;line-height:1;color:var(--c-primary)}
.error-note{color:var(--c-muted)}
.error-search{display:flex;justify-content:center;margin-top:22px}
.error-actions{margin-top:26px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
/* 页脚结构 */
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:36px;padding:52px 0 38px}
.footer-heading{font-size:15px;margin-bottom:14px}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.site-footer .widget{background:none;padding:0;box-shadow:none;border:0}
.footer-about p{max-width:340px}
.footer-bottom-inner{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:16px 0;font-size:13px}
.footer-menu{list-style:none;margin:0;padding:0;display:flex !important;gap:18px}
/* 移动端导航结构 */
.menu-toggle{display:none;background:none;border:1px solid var(--c-line);border-radius:6px;padding:9px 10px;cursor:pointer}
.menu-toggle-bar{display:block;width:20px;height:2px;background:var(--c-ink);margin:4px 0}
@media (max-width:1024px){
.equipment-grid{grid-template-columns:repeat(2,1fr)}
.footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:782px){
.menu-toggle{display:block}
.main-navigation{position:absolute;top:100%;left:0;right:0;background:var(--c-nav-bg);border-bottom:1px solid var(--c-line);display:none;z-index:120}
.main-navigation.is-open{display:block}
.main-navigation ul{flex-direction:column;gap:0;padding:8px 0}
.main-navigation a{padding:12px 24px}
.main-navigation ul ul{position:static;display:flex;border:0;box-shadow:none;padding-left:18px}
.section{padding:48px 0}
.header-cta{display:none}
}
@media (max-width:600px){
.equipment-grid{grid-template-columns:1fr}
.footer-grid{grid-template-columns:1fr}
}
/* 滚动浮现（未启用 reveal 的主题此段无副作用） */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ===== 本主题设计层 ===== */
:root{
--c-primary:#4338ca;--c-primary-2:#3730a3;--c-accent:#818cf8;
--c-ink:#1e1b4b;--c-muted:#6d6f96;--c-line:#dde3f8;
--c-bg:#eef2ff;--c-card:#ffffff;--c-nav-bg:#ffffff;
--r:8px;--r-pill:8px;
--font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,sans-serif;
}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.85;color:var(--c-ink);background:#fff;-webkit-font-smoothing:antialiased}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,background .2s ease}
a:hover{color:var(--c-primary-2)}
h1,h2,h3,h4,h5,h6{color:var(--c-ink);line-height:1.3;margin:0 0 .5em;font-weight:800}
p{margin:0 0 1em}

/* 按钮：纯平面 */
.btn{display:inline-block;padding:13px 32px;border-radius:8px;font-size:15px;font-weight:700;border:2px solid var(--c-primary);cursor:pointer;transition:all .18s ease}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-2);border-color:var(--c-primary-2);color:#fff}
.btn-secondary{background:transparent;color:var(--c-primary)}
.btn-secondary:hover{background:var(--c-bg);color:var(--c-primary-2)}

/* 页头 */
.site-header{background:#fff;border-bottom:2px solid var(--c-ink);position:sticky;top:0;z-index:100}
.site-header.is-stuck{box-shadow:0 6px 18px rgba(30,27,75,.1)}
.header-inner{display:flex;align-items:center;justify-content:space-between;min-height:74px;gap:22px}
.site-branding .custom-logo{max-height:46px;width:auto;display:block}
.site-logo-text{display:flex;align-items:center;gap:12px}
.logo-mark{width:42px;height:42px;border-radius:8px;background:var(--c-ink);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:19px;font-weight:800;flex:none}
.logo-words{line-height:1.3}
.site-title{display:block;font-size:19px;font-weight:800;color:var(--c-ink)}
.site-desc{display:block;font-size:11px;color:var(--c-muted)}
.main-navigation ul{list-style:none;margin:0;padding:0;display:flex;gap:2px}
.main-navigation li{position:relative}
.main-navigation a{display:block;padding:25px 16px;font-size:15px;font-weight:600;color:var(--c-ink)}
.main-navigation a:hover,.main-navigation .current-menu-item>a,.main-navigation .current_page_item>a{color:var(--c-primary);box-shadow:inset 0 -4px 0 var(--c-primary)}
.main-navigation ul ul{position:absolute;top:100%;left:0;min-width:184px;background:#fff;border:2px solid var(--c-ink);display:none;flex-direction:column;gap:0;z-index:110}
.main-navigation li:hover>ul,.main-navigation li:focus-within>ul{display:flex}
.main-navigation ul ul a{padding:10px 16px;font-size:14px;box-shadow:none}

/* 内页头 */
.page-head{background:var(--c-bg);padding:50px 0;border-bottom:2px solid var(--c-ink)}
.page-title{font-size:32px;margin:0}
.page-subtitle{margin:8px 0 0;color:var(--c-muted);font-size:14px}

/* 首屏：靛蓝墨块 + 同心环 */
.hero{background:var(--c-ink);color:#fff;position:relative;overflow:hidden;padding:96px 0}
.hero-rings{position:absolute;right:-160px;top:50%;transform:translateY(-50%);width:560px;height:560px;border-radius:50%;background:repeating-radial-gradient(circle at center,transparent 0 34px,rgba(129,140,248,.16) 34px 36px)}
.hero-inner{position:relative;z-index:1;max-width:640px}
.hero-tag{display:inline-block;background:var(--c-primary);color:#fff;font-size:13px;font-weight:800;padding:6px 16px;border-radius:6px;margin-bottom:24px;letter-spacing:.08em}
.hero-title{color:#fff;font-size:48px;line-height:1.22;margin-bottom:18px}
.hero-title em{font-style:normal;color:var(--c-accent)}
.hero-text{font-size:17px;color:#b6bce4;margin-bottom:36px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero .btn-primary{background:#fff;border-color:#fff;color:var(--c-ink)}
.hero .btn-primary:hover{background:var(--c-accent);border-color:var(--c-accent);color:var(--c-ink)}
.hero .btn-secondary{border-color:#8a91cf;color:#fff}
.hero .btn-secondary:hover{background:rgba(255,255,255,.1);color:#fff}

/* 版块标题：粗色条 */
.section-head{margin-bottom:36px}
.section-head h2{font-size:28px;margin:0;padding-left:20px;border-left:8px solid var(--c-primary)}
.section-head p{color:var(--c-muted);margin:10px 0 0;padding-left:28px}
.section-tint{background:var(--c-bg)}

/* 三列平卡 */
.flat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.flat-card{background:var(--c-bg);border-radius:var(--r);padding:30px 28px}
.section-tint .flat-card{background:#fff}
.flat-idx{display:inline-block;background:var(--c-ink);color:#fff;font-size:13px;font-weight:800;border-radius:6px;padding:3px 12px;margin-bottom:14px}
.flat-card h3{font-size:18px;margin-bottom:8px}
.flat-card p{font-size:14px;color:var(--c-muted);margin:0}

/* 设备卡皮肤 */
.eq-card{background:#fff;border:2px solid var(--c-line);border-radius:var(--r);transition:border-color .18s ease,background .18s ease}
.eq-card:hover{border-color:var(--c-primary);background:var(--c-bg)}
.eq-thumb{background:var(--c-bg)}
.filter-pill{border-width:2px;font-weight:700}

/* 色阶带 */
.scale-band{display:grid;grid-template-columns:repeat(4,1fr);border-radius:var(--r);overflow:hidden}
.scale-cell{padding:30px 26px;color:#fff}
.scale-cell b{display:block;font-size:34px;font-weight:800;line-height:1.2}
.scale-cell span{font-size:13px;opacity:.8}
.scale-1{background:#818cf8}
.scale-2{background:#6366f1}
.scale-3{background:#4f46e5}
.scale-4{background:#3730a3}

/* CTA */
.cta-ink{background:var(--c-bg);border:2px solid var(--c-ink);border-radius:var(--r);padding:52px;text-align:center}
.cta-ink h2{font-size:29px;margin-bottom:8px}
.cta-ink p{color:var(--c-muted);max-width:520px;margin:0 auto 30px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* 列表/正文/联系条/页脚皮肤 */
.post-item{background:var(--c-bg);border-radius:var(--r);padding:24px 28px;border-left:8px solid var(--c-primary)}
.article-wrap article{background:#fff;border:2px solid var(--c-line);border-radius:var(--r);padding:34px 38px}
.contact-strip{background:var(--c-ink);color:#fff}
.contact-strip h3{color:#fff}
.contact-strip p{color:#b6bce4}
.contact-strip .btn-primary{background:#fff;border-color:#fff;color:var(--c-ink)}
.contact-strip .btn-secondary{border-color:#8a91cf;color:#fff}
.site-footer{background:var(--c-ink);color:#b6bce4;font-size:14px;margin-top:64px}
.site-footer a{color:#b6bce4}
.site-footer a:hover{color:#fff}
.footer-heading{color:#fff}
.footer-bottom{border-top:1px solid rgba(182,188,228,.25)}

@media (max-width:1024px){
.flat-grid{grid-template-columns:1fr}
.scale-band{grid-template-columns:1fr 1fr}
.hero-rings{display:none}
}
@media (max-width:782px){
.hero{padding:60px 0}
.hero-title{font-size:33px}
.section-head h2{font-size:23px}
.page-title{font-size:25px}
.cta-ink{padding:34px 22px}
.article-wrap article{padding:24px}
}
@media (max-width:600px){
.scale-band{grid-template-columns:1fr}
}