/*
Theme Name:        Shirun Machinery
Theme URI:         https://github.com/zhanglingAI/shirun-machinery-website
Author:            Zhang Ling
Author URI:        https://github.com/zhanglingAI
Description:       时润机械独立站自定义主题 - 面向海外市场的 B2B 外贸独立站，专注二手混凝土泵车设备展示与询盘转化。
Version:           0.1.0
Requires at least: 6.0
Tested up to:      6.4
Requires PHP:      8.1
License:           Proprietary
License URI:       https://shirun.com/license
Text Domain:       shirun
Tags:              b2b, machinery, equipment, inquiry, whatsapp, seo
*/
:root{--color-primary:#0066cc;--color-primary-dark:#004fa3;--color-primary-light:#3385d6;--color-secondary:#ff6600;--color-secondary-dark:#cc5200;--color-text:#333333;--color-text-light:#666666;--color-text-muted:#999999;--color-bg:#ffffff;--color-bg-light:#f8f9fa;--color-bg-dark:#1a1a2e;--color-border:#e0e0e0;--color-success:#28a745;--color-warning:#ffc107;--color-danger:#dc3545;--color-whatsapp:#25D366;--font-family-base:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;--font-family-heading:'Inter',sans-serif;--font-size-base:16px;--line-height-base:1.6;--spacing-xs:0.5rem;--spacing-sm:1rem;--spacing-md:1.5rem;--spacing-lg:2rem;--spacing-xl:3rem;--spacing-xxl:5rem;--radius-sm:4px;--radius-md:8px;--radius-lg:16px;--radius-full:9999px;--shadow-sm:0 1px 3px rgba(0,0,0,0.08);--shadow-md:0 4px 12px rgba(0,0,0,0.12);--shadow-lg:0 8px 24px rgba(0,0,0,0.16);--transition:all 0.3s ease;--container-max:1200px;}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}html{font-size:var(--font-size-base);scroll-behavior:smooth;-webkit-text-size-adjust:100%;}body{font-family:var(--font-family-base);font-size:1rem;line-height:var(--line-height-base);color:var(--color-text);background-color:var(--color-bg);-webkit-font-smoothing:antialiased;}img{max-width:100%;height:auto;display:block;}a{color:var(--color-primary);text-decoration:none;transition:var(--transition);}a:hover{color:var(--color-primary-dark);}.container{width:100%;max-width:var(--container-max);margin:0 auto;padding:0 var(--spacing-sm);}@media (min-width:768px){.container{padding:0 var(--spacing-md);}}@media (min-width:992px){.container{padding:0 var(--spacing-lg);}}@media (min-width:1200px){.container{padding:0 var(--spacing-xl);}}.product-grid{display:grid;gap:var(--spacing-md);grid-template-columns:1fr;}@media (min-width:576px){.product-grid{grid-template-columns:repeat(2,1fr);}}@media (min-width:992px){.product-grid{grid-template-columns:repeat(3,1fr);}}@media (min-width:1200px){.product-grid{grid-template-columns:repeat(4,1fr);}}.product-card{background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-md);overflow:hidden;transition:var(--transition);box-shadow:var(--shadow-sm);}.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--color-primary-light);}.product-card__image{position:relative;overflow:hidden;aspect-ratio:4/3;}.product-card__image img{width:100%;height:100%;object-fit:cover;transition:transform 0.4s ease;}.product-card:hover .product-card__image img{transform:scale(1.05);}.product-card__badge{position:absolute;top:var(--spacing-xs);left:var(--spacing-xs);background:var(--color-secondary);color:#fff;font-size:0.75rem;font-weight:600;padding:2px 8px;border-radius:var(--radius-sm);text-transform:uppercase;}.product-card__body{padding:var(--spacing-sm);}.product-card__title{font-size:1rem;font-weight:600;margin-bottom:var(--spacing-xs);line-height:1.4;}.product-card__title a{color:var(--color-text);}.product-card__title a:hover{color:var(--color-primary);}.product-card__meta{display:flex;gap:var(--spacing-xs);font-size:0.875rem;color:var(--color-text-light);margin-bottom:var(--spacing-xs);}.product-card__price{font-size:1rem;font-weight:700;color:var(--color-secondary);margin-bottom:var(--spacing-sm);}.btn{display:inline-flex;align-items:center;justify-content:center;gap:0.5rem;padding:0.625rem 1.25rem;font-size:0.9375rem;font-weight:600;border-radius:var(--radius-sm);border:2px solid transparent;cursor:pointer;transition:var(--transition);text-decoration:none;white-space:nowrap;}.btn--primary{background:var(--color-primary);color:#fff;border-color:var(--color-primary);}.btn--primary:hover{background:var(--color-primary-dark);border-color:var(--color-primary-dark);color:#fff;}.btn--secondary{background:var(--color-secondary);color:#fff;border-color:var(--color-secondary);}.btn--secondary:hover{background:var(--color-secondary-dark);border-color:var(--color-secondary-dark);color:#fff;}.btn--outline{background:transparent;color:var(--color-primary);border-color:var(--color-primary);}.btn--outline:hover{background:var(--color-primary);color:#fff;}.btn--full{width:100%;}.form-group{margin-bottom:var(--spacing-sm);}.form-label{display:block;font-size:0.875rem;font-weight:600;color:var(--color-text);margin-bottom:0.375rem;}.form-label .required{color:var(--color-danger);margin-left:2px;}.form-control{display:block;width:100%;padding:0.625rem 0.875rem;font-size:0.9375rem;line-height:1.5;color:var(--color-text);background:var(--color-bg);border:1px solid var(--color-border);border-radius:var(--radius-sm);transition:border-color 0.2s ease,box-shadow 0.2s ease;appearance:none;}.form-control:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(0,102,204,0.15);}.form-control.error{border-color:var(--color-danger);}.form-error{font-size:0.8125rem;color:var(--color-danger);margin-top:0.25rem;}.whatsapp-float{position:fixed;bottom:30px;right:30px;z-index:9999;}.whatsapp-float__link{display:flex;align-items:center;gap:0.5rem;background:var(--color-whatsapp);color:#fff;padding:12px 20px;border-radius:var(--radius-full);box-shadow:0 4px 12px rgba(37,211,102,0.4);text-decoration:none;font-weight:600;font-size:0.9375rem;transition:var(--transition);}.whatsapp-float__link:hover{transform:translateY(-3px);box-shadow:0 6px 20px rgba(37,211,102,0.55);color:#fff;}.whatsapp-float__icon{width:24px;height:24px;flex-shrink:0;}@media (max-width:575px){.whatsapp-float__text{display:none;}.whatsapp-float__link{padding:14px;border-radius:50%;}}.site-header{position:sticky;top:0;z-index:1000;background:var(--color-bg);border-bottom:none;box-shadow:var(--shadow-sm);}.site-header__inner{display:flex;align-items:center;justify-content:space-between;height:70px;}.site-logo img{height:48px;width:auto;}.main-nav{display:none;}.main-nav__list{display:flex;list-style:none;gap:var(--spacing-md);}.main-nav__link{font-size:0.9375rem;font-weight:500;color:var(--color-text);padding:0.25rem 0;border-bottom:none;}.main-nav__link:hover,.main-nav__link.active{color:var(--color-primary);border-bottom:none;}.mobile-menu-toggle{display:flex;flex-direction:column;gap:5px;cursor:pointer;padding:8px;background:none;border:none;}.mobile-menu-toggle span{display:block;width:24px;height:2px;background:var(--color-text);transition:var(--transition);}@media (min-width:992px){.main-nav{display:block;}.mobile-menu-toggle{display:none;}}.site-footer{background:var(--color-bg-dark);color:rgba(255,255,255,0.8);padding:var(--spacing-xl) 0 var(--spacing-lg);margin-top:var(--spacing-xxl);}.site-footer a{color:rgba(255,255,255,0.7);}.site-footer a:hover{color:#fff;}.site-footer__grid{display:grid;gap:var(--spacing-lg);grid-template-columns:1fr;}@media (min-width:768px){.site-footer__grid{grid-template-columns:2fr 1fr 1fr;}}.site-footer__bottom{border-top:1px solid rgba(255,255,255,0.1);margin-top:var(--spacing-lg);padding-top:var(--spacing-sm);font-size:0.875rem;color:rgba(255,255,255,0.5);text-align:center;}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}.text-center{text-align:center;}.text-right{text-align:right;}.mt-sm{margin-top:var(--spacing-sm);}.mt-md{margin-top:var(--spacing-md);}.mt-lg{margin-top:var(--spacing-lg);}.mb-sm{margin-bottom:var(--spacing-sm);}.mb-md{margin-bottom:var(--spacing-md);}.mb-lg{margin-bottom:var(--spacing-lg);}.section{padding:var(--spacing-xl) 0;}.section--bg{background:var(--color-bg-light);}.section__title{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:700;color:var(--color-text);margin-bottom:var(--spacing-md);text-align:center;}.section__subtitle{font-size:1.0625rem;color:var(--color-text-light);text-align:center;max-width:600px;margin:0 auto var(--spacing-lg);}