/*
Theme Name: Xinrui Metal Packaging
Theme URI: https://thec.online/
Description: 佛山市新锐金属包装有限公司 - 专业铁盒包装制造商
Version: 1.0.0
Author: Xinrui Metal Packaging
Text Domain: xinrui
Tags: one-column, custom-menu, featured-images, theme-options
*/

/* ============================================
   CSS Variables
   ============================================ */
:root {
    --color-primary: #1A7B5D;
    --color-primary-dark: #145A44;
    --color-primary-light: #B5E7D9;
    --color-primary-bg: #E8F5F0;
    --color-gold: #C8A96E;
    --color-text: #333333;
    --color-text-light: #666666;
    --color-bg: #FFFFFF;
    --color-bg-light: #F5F5F5;
    --color-bg-dark: #1A1A1A;
    --color-border: #E0E0E0;
    --font-main: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --container-width: 1200px;
    --header-height: 80px;
    --transition: all 0.3s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-main); color: var(--color-text); background: var(--color-bg); line-height: 1.6; overflow-x: hidden; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul, ol { list-style: none; }
img { max-width: 100%; height: auto; display: block; }
.container { max-width: var(--container-width); margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: rgba(255,255,255,0.98); box-shadow: 0 2px 20px rgba(0,0,0,0.08); height: var(--header-height); transition: var(--transition); }
.site-header.scrolled { height: 64px; }
.header-inner { max-width: var(--container-width); margin: 0 auto; padding: 0 20px; display: flex; align-items: center; justify-content: space-between; height: 100%; }
.site-logo { display: flex; align-items: center; gap: 12px; }
.logo-icon { width: 48px; height: 48px; background: var(--color-primary); border-radius: 8px; display: flex; align-items: center; justify-content: center; color: white; font-weight: 700; font-size: 18px; }
.site-logo-text { font-size: 18px; font-weight: 700; color: var(--color-text); line-height: 1.3; }
.site-logo-text small { display: block; font-size: 12px; font-weight: 400; color: var(--color-text-light); }
.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a { padding: 8px 16px; font-size: 15px; font-weight: 500; color: var(--color-text); border-radius: 6px; transition: var(--transition); white-space: nowrap; }
.main-nav a:hover, .main-nav a.active { color: var(--color-primary); background: var(--color-primary-bg); }
.nav-has-sub { position: relative; }
.nav-has-sub::after { content: ''; display: inline-block; width: 0; height: 0; border-left: 4px solid transparent; border-right: 4px solid transparent; border-top: 5px solid currentColor; margin-left: 6px; vertical-align: middle; }
.sub-menu { position: absolute; top: 100%; left: 0; background: white; min-width: 200px; border-radius: 8px; box-shadow: 0 8px 30px rgba(0,0,0,0.12); padding: 8px; opacity: 0; visibility: hidden; transform: translateY(10px); transition: var(--transition); }
.nav-has-sub:hover .sub-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.sub-menu a { display: block; padding: 10px 16px; font-size: 14px; border-radius: 6px; }
.sub-menu a:hover { background: var(--color-primary-bg); color: var(--color-primary); }
.mobile-menu-btn { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 8px; }
.mobile-menu-btn span { width: 24px; height: 2px; background: var(--color-text); transition: var(--transition); }

/* Hero Slider */
.hero-slider { position: relative; height: 100vh; min-height: 600px; max-height: 900px; overflow: hidden; }
.hero-slide { position: absolute; top: 0; left: 0; width: 100%; height: 100%; opacity: 0; transition: opacity 1s ease; display: flex; align-items: center; }
.hero-slide.active { opacity: 1; }
.hero-slide-bg { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(135deg, #1A7B5D 0%, #145A44 40%, #0D3D2E 100%); z-index: 0; background-size: cover; background-position: center; background-repeat: no-repeat; }
.hero-slide-bg.has-image::after { content: ''; position: absolute; inset: 0; background: rgba(0,0,0,0.45); z-index: 1; }
.hero-overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.45); z-index: 1; }
.hero-circle-decor { position: absolute; border-radius: 50%; border: 2px solid rgba(255,255,255,0.2); }
.hero-circle-decor.c1 { width: 500px; height: 500px; right: -100px; top: -100px; }
.hero-circle-decor.c2 { width: 350px; height: 350px; right: 50px; top: 100px; }
.hero-circle-decor.c3 { width: 200px; height: 200px; right: 200px; bottom: 50px; background: rgba(255,255,255,0.05); }
.hero-content { position: relative; z-index: 2; max-width: var(--container-width); margin: 0 auto; padding: 0 20px; color: white; }
.hero-tag { display: inline-block; background: rgba(255,255,255,0.15); padding: 6px 20px; border-radius: 30px; font-size: 14px; margin-bottom: 24px; backdrop-filter: blur(10px); }
.hero-title { font-size: 52px; font-weight: 700; line-height: 1.2; margin-bottom: 16px; max-width: 600px; }
.hero-subtitle { font-size: 20px; opacity: 0.85; max-width: 500px; margin-bottom: 36px; line-height: 1.6; }
.hero-btn { display: inline-block; background: white; color: var(--color-primary); padding: 14px 40px; border-radius: 50px; font-weight: 600; font-size: 16px; transition: var(--transition); }
.hero-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(0,0,0,0.2); }
.hero-slider-nav { position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%); z-index: 10; display: flex; gap: 12px; }
.hero-slider-dot { width: 12px; height: 12px; border-radius: 50%; background: rgba(255,255,255,0.4); cursor: pointer; transition: var(--transition); }
.hero-slider-dot.active { background: white; width: 36px; border-radius: 6px; }
.hero-slider-arrows { position: absolute; top: 50%; transform: translateY(-50%); width: 100%; z-index: 10; display: flex; justify-content: space-between; padding: 0 30px; pointer-events: none; }
.hero-arrow { width: 48px; height: 48px; border-radius: 50%; background: rgba(255,255,255,0.15); backdrop-filter: blur(10px); border: 1px solid rgba(255,255,255,0.3); display: flex; align-items: center; justify-content: center; color: white; cursor: pointer; transition: var(--transition); pointer-events: all; font-size: 20px; }
.hero-arrow:hover { background: rgba(255,255,255,0.3); }

/* Sections */
.section { padding: 100px 0; }
.section-light { background: var(--color-bg-light); }
.section-primary { background: var(--color-primary); color: white; }
.section-dark { background: var(--color-bg-dark); color: white; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-label { display: inline-block; font-size: 13px; font-weight: 600; color: var(--color-primary); text-transform: uppercase; letter-spacing: 2px; margin-bottom: 12px; }
.section-primary .section-label { color: var(--color-primary-light); }
.section-title { font-size: 36px; font-weight: 700; margin-bottom: 16px; line-height: 1.3; }
.section-subtitle { font-size: 16px; color: var(--color-text-light); max-width: 600px; margin: 0 auto; line-height: 1.6; }
.section-primary .section-subtitle { color: rgba(255,255,255,0.7); }

/* About */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-image { position: relative; border-radius: 16px; overflow: hidden; aspect-ratio: 4/3; background: linear-gradient(135deg, var(--color-primary-light), var(--color-primary-bg)); display: flex; align-items: center; justify-content: center; color: var(--color-primary); }
.about-image-placeholder { width: 100%; height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; font-size: 80px; }
.about-image-placeholder span { font-size: 16px; margin-top: 12px; font-weight: 500; }
.about-year-badge { position: absolute; bottom: 20px; right: 20px; background: var(--color-primary); color: white; padding: 12px 24px; border-radius: 12px; font-weight: 700; font-size: 14px; }
.about-content h3 { font-size: 28px; font-weight: 700; margin-bottom: 20px; }
.about-content p { font-size: 16px; line-height: 1.8; color: var(--color-text-light); margin-bottom: 16px; }
.about-features { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 30px; }
.about-feature-item { display: flex; align-items: center; gap: 10px; font-size: 15px; font-weight: 500; }
.about-feature-icon { width: 32px; height: 32px; background: var(--color-primary-bg); border-radius: 8px; display: flex; align-items: center; justify-content: center; color: var(--color-primary); font-size: 16px; flex-shrink: 0; }

/* Stats */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; margin-bottom: 60px; }
.stat-card { text-align: center; padding: 40px 20px; background: white; border-radius: 16px; box-shadow: 0 4px 20px rgba(0,0,0,0.06); transition: var(--transition); }
.stat-card:hover { transform: translateY(-4px); box-shadow: 0 8px 30px rgba(0,0,0,0.1); }
.stat-number { font-size: 48px; font-weight: 700; color: var(--color-primary); line-height: 1; margin-bottom: 8px; }
.stat-number span { font-size: 24px; }
.stat-label { font-size: 15px; color: var(--color-text-light); font-weight: 500; }

/* Features Tabs */
.features-tabs { display: flex; justify-content: center; gap: 8px; margin-bottom: 40px; flex-wrap: wrap; }
.feature-tab { padding: 12px 28px; border-radius: 50px; font-size: 15px; font-weight: 500; cursor: pointer; transition: var(--transition); background: white; color: var(--color-text); border: 1px solid var(--color-border); }
.feature-tab.active, .feature-tab:hover { background: var(--color-primary); color: white; border-color: var(--color-primary); }
.feature-content { display: none; }
.feature-content.active { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.feature-text h4 { font-size: 24px; font-weight: 700; margin-bottom: 16px; }
.feature-text p { font-size: 16px; line-height: 1.8; color: var(--color-text-light); }
.feature-image { border-radius: 16px; overflow: hidden; aspect-ratio: 4/3; background: var(--color-primary-bg); display: flex; align-items: center; justify-content: center; font-size: 60px; color: var(--color-primary); }

/* Products */
.products-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-bottom: 40px; }
.product-card { background: white; border-radius: 16px; overflow: hidden; box-shadow: 0 2px 15px rgba(0,0,0,0.06); transition: var(--transition); cursor: pointer; }
.product-card:hover { transform: translateY(-6px); box-shadow: 0 12px 35px rgba(0,0,0,0.12); }
.product-image { aspect-ratio: 1; background: var(--color-primary-bg); display: flex; align-items: center; justify-content: center; font-size: 48px; color: var(--color-primary); position: relative; overflow: hidden; }
.product-image::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 60px; background: linear-gradient(transparent, rgba(26,123,93,0.1)); }
.product-info { padding: 20px; text-align: center; }
.product-name { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.product-desc { font-size: 13px; color: var(--color-text-light); }

/* News */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.news-card { background: white; border-radius: 16px; overflow: hidden; box-shadow: 0 2px 15px rgba(0,0,0,0.06); transition: var(--transition); }
.news-card:hover { transform: translateY(-4px); box-shadow: 0 8px 25px rgba(0,0,0,0.1); }
.news-image { aspect-ratio: 16/9; background: var(--color-primary-bg); display: flex; align-items: center; justify-content: center; font-size: 40px; color: var(--color-primary); }
.news-body { padding: 24px; }
.news-date { font-size: 13px; color: var(--color-primary); font-weight: 500; margin-bottom: 8px; }
.news-title { font-size: 17px; font-weight: 600; line-height: 1.5; }

/* ESG */
.esg-tabs { display: flex; gap: 0; margin-bottom: 40px; border-radius: 12px; overflow: hidden; box-shadow: 0 2px 15px rgba(0,0,0,0.06); }
.esg-tab { flex: 1; padding: 20px; text-align: center; background: white; cursor: pointer; transition: var(--transition); font-weight: 500; border-bottom: 3px solid transparent; }
.esg-tab.active, .esg-tab:hover { background: var(--color-primary-bg); color: var(--color-primary); border-bottom-color: var(--color-primary); }
.esg-tab-icon { font-size: 28px; margin-bottom: 8px; }
.esg-content { display: none; }
.esg-content.active { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.esg-text h4 { font-size: 24px; font-weight: 700; margin-bottom: 16px; }
.esg-text p { font-size: 16px; line-height: 1.8; color: var(--color-text-light); margin-bottom: 16px; }
.esg-cta { display: inline-flex; align-items: center; gap: 8px; color: var(--color-primary); font-weight: 600; }
.esg-cta:hover { gap: 12px; }

/* Clients */
.clients-marquee { display: flex; gap: 60px; animation: marquee 20s linear infinite; }
.client-logo { flex-shrink: 0; width: 140px; height: 60px; background: white; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 14px; color: var(--color-text-light); font-weight: 500; border: 1px solid var(--color-border); padding: 0 16px; }
@keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* CTA */
.cta-section { background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%); color: white; text-align: center; padding: 80px 0; position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; top: -50%; right: -10%; width: 400px; height: 400px; border-radius: 50%; border: 2px solid rgba(255,255,255,0.1); }
.cta-section::after { content: ''; position: absolute; bottom: -30%; left: -5%; width: 300px; height: 300px; border-radius: 50%; background: rgba(255,255,255,0.05); }
.cta-title { font-size: 36px; font-weight: 700; margin-bottom: 16px; position: relative; z-index: 1; }
.cta-subtitle { font-size: 18px; opacity: 0.85; margin-bottom: 32px; position: relative; z-index: 1; }
.cta-btn { display: inline-block; background: white; color: var(--color-primary); padding: 16px 48px; border-radius: 50px; font-weight: 600; font-size: 17px; transition: var(--transition); position: relative; z-index: 1; }
.cta-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(0,0,0,0.2); }

/* Footer */
.site-footer { background: #1A1A1A; color: rgba(255,255,255,0.7); padding-top: 60px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-brand h3 { color: white; font-size: 20px; margin-bottom: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.7; margin-bottom: 16px; }
.footer-col h4 { color: white; font-size: 16px; font-weight: 600; margin-bottom: 20px; }
.footer-col a { display: block; font-size: 14px; color: rgba(255,255,255,0.6); padding: 6px 0; transition: var(--transition); }
.footer-col a:hover { color: white; padding-left: 4px; }
.footer-locations { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; padding: 40px 0; border-bottom: 1px solid rgba(255,255,255,0.1); }
.footer-location h5 { color: white; font-size: 14px; font-weight: 600; margin-bottom: 8px; }
.footer-location p { font-size: 13px; line-height: 1.6; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding: 24px 0; font-size: 13px; }

/* Page Hero */
.page-hero { background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%); color: white; padding: 160px 0 80px; text-align: center; position: relative; overflow: hidden; }
.page-hero::before { content: ''; position: absolute; top: -200px; right: -100px; width: 400px; height: 400px; border-radius: 50%; border: 2px solid rgba(255,255,255,0.1); }
.page-hero h1 { font-size: 40px; font-weight: 700; margin-bottom: 16px; position: relative; z-index: 1; }
.page-hero p { font-size: 18px; opacity: 0.85; position: relative; z-index: 1; }
.breadcrumb { display: flex; justify-content: center; gap: 8px; font-size: 14px; margin-bottom: 20px; opacity: 0.7; position: relative; z-index: 1; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.contact-info-item { display: flex; gap: 16px; margin-bottom: 30px; }
.contact-icon { width: 48px; height: 48px; background: var(--color-primary-bg); border-radius: 12px; display: flex; align-items: center; justify-content: center; color: var(--color-primary); font-size: 20px; flex-shrink: 0; }
.contact-text h4 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.contact-text p { font-size: 14px; color: var(--color-text-light); line-height: 1.6; }
.contact-form input, .contact-form textarea, .contact-form select { width: 100%; padding: 14px 18px; border: 1px solid var(--color-border); border-radius: 10px; font-size: 15px; font-family: var(--font-main); transition: var(--transition); margin-bottom: 16px; background: var(--color-bg-light); }
.contact-form input:focus, .contact-form textarea:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(26,123,93,0.1); background: white; }
.contact-form textarea { height: 140px; resize: vertical; }
.contact-form button { background: var(--color-primary); color: white; padding: 14px 40px; border: none; border-radius: 10px; font-size: 16px; font-weight: 600; cursor: pointer; transition: var(--transition); }
.contact-form button:hover { background: var(--color-primary-dark); transform: translateY(-2px); }

/* Mobile Nav */
.mobile-nav-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); z-index: 1001; opacity: 0; visibility: hidden; transition: var(--transition); }
.mobile-nav-overlay.active { opacity: 1; visibility: visible; }
.mobile-nav-panel { position: fixed; top: 0; right: -300px; width: 300px; height: 100%; background: white; z-index: 1002; transition: var(--transition); padding: 24px; overflow-y: auto; }
.mobile-nav-panel.active { right: 0; }
.mobile-nav-close { display: flex; justify-content: flex-end; margin-bottom: 24px; }
.mobile-nav-close button { background: none; border: none; font-size: 24px; cursor: pointer; color: var(--color-text); }
.mobile-nav-panel a { display: block; padding: 12px 0; font-size: 16px; font-weight: 500; border-bottom: 1px solid var(--color-border); }

/* Animation */
.fade-in { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* WP */
.screen-reader-text { border: 0; clip: rect(1px,1px,1px,1px); clip-path: inset(50%); height: 1px; margin: -1px; overflow: hidden; padding: 0; position: absolute; width: 1px; word-wrap: normal !important; }

/* Responsive */
@media (max-width: 1024px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .products-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(3, 1fr); }
    .about-grid, .feature-content.active, .esg-content.active { grid-template-columns: 1fr; }
    .hero-slider { max-height: 700px; min-height: 500px; }
}
@media (max-width: 768px) {
    .main-nav { display: none; }
    .mobile-menu-btn { display: flex; }
    .hero-title { font-size: 32px; }
    .hero-subtitle { font-size: 16px; }
    .section { padding: 60px 0; }
    .section-title { font-size: 28px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .stat-number { font-size: 36px; }
    .products-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
    .news-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-locations { grid-template-columns: 1fr; }
    .features-tabs { flex-wrap: wrap; }
    .feature-tab { padding: 10px 20px; font-size: 14px; }
    .esg-tabs { flex-direction: column; }
    .hero-slider { height: 70vh; min-height: 400px; max-height: 560px; }
    .hero-slide-bg { background-position: center top; }
}
@media (max-width: 480px) {
    .hero-title { font-size: 26px; }
    .products-grid { grid-template-columns: 1fr; }
    .about-features { grid-template-columns: 1fr; }
    .hero-slider { height: 60vh; min-height: 320px; max-height: 420px; }
}