/*
Theme Name: 云店+ SwiftMater
Theme URI: https://www.ydjia.com/
Author: 云店+
Author URI: https://www.ydjia.com/
Description: SwiftMater（芯培森旗下品牌）高端材料计算服务平台 B2B 官网 WordPress 主题。基于 ACF Pro + No-Build + WooCommerce 深度定制，内置多品牌 Profile 模板系统、动态配色、SEO/GEO/AEO 优化与表单管理。
Version: 1.29.11
Requires at least: 6.0
Tested up to: 6.7
Requires PHP: 8.0
License: Commercial License
License URI: https://www.ydjia.com/
Text Domain: yundian-wp
Domain Path: /languages
Tags: custom-theme, responsive, b2b, material-computing, factory
*/

/* ===== CSS Variables - Neutral Base ===== */
:root {
  --yundian-primary: #2563EB;
  --yundian-primary-hover: #1D4ED8;
  --yundian-secondary: #1E293B;
  --yundian-text: #333333;
  --yundian-text-light: #666666;
  --yundian-gray: #F5F5F5;
  --yundian-gray-dark: #E0E0E0;
  --yundian-border: #E8E8E8;
  --yundian-white: #FFFFFF;
  --yundian-success: #22C55E;
  --yundian-error: #EF4444;
  --yundian-bg-light: #f9fafb;
  --yundian-bg-dark: #1a1a2e;
  --yundian-footer-bg: #1a1a2e;
  --yundian-footer-text: #9ca3af;
  --yundian-footer-heading: #ffffff;
  --yundian-footer-hover: #2563EB;
  --yundian-footer-border: #374151;
}

/* ===== Reset & Base ===== */
html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--yundian-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

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

/* ===== Container ===== */
.yundian-container {
  max-width: 1760px;
  margin: 0 auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

@media (min-width: 640px) {
  .yundian-container {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .yundian-container {
    padding-left: 3rem;
    padding-right: 3rem;
  }
}

@media (min-width: 1536px) {
  .yundian-container {
    padding-left: 4rem;
    padding-right: 4rem;
  }
}

/* ===== Typography ===== */
.yundian-h1 {
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--yundian-text);
}

.yundian-h2 {
  font-size: 1.875rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--yundian-text);
}

.yundian-h3 {
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--yundian-text);
}

/* ===== Buttons ===== */
.yundian-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 0.375rem;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
}

.yundian-btn-primary {
  background-color: var(--yundian-orange);
  color: var(--yundian-white);
}

.yundian-btn-primary:hover {
  background-color: var(--yundian-orange-hover);
}

.yundian-btn-outline {
  background-color: transparent;
  border: 1px solid currentColor;
  color: var(--yundian-white);
}

.yundian-btn-outline:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.yundian-btn-white {
  background-color: var(--yundian-white);
  color: var(--yundian-orange);
}

.yundian-btn-white:hover {
  background-color: var(--yundian-gray);
}

/* ===== Sections ===== */
.yundian-section {
  padding-top: 4rem;
  padding-bottom: 4rem;
}

.yundian-section-sm {
  padding-top: 3rem;
  padding-bottom: 3rem;
}

.yundian-bg-gradient {
  background: linear-gradient(135deg, var(--yundian-navy) 0%, var(--yundian-navy-light) 100%);
}

.yundian-bg-gradient-orange {
  background: linear-gradient(135deg, var(--yundian-orange) 0%, var(--yundian-orange-dark) 100%);
}

/* ===== Cards ===== */
.yundian-card {
  background-color: var(--yundian-white);
  border: 1px solid var(--yundian-border);
  border-radius: 0.75rem;
  overflow: hidden;
  transition: box-shadow 0.2s ease;
}

.yundian-card:hover {
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

/* ===== Tags / Badges ===== */
.yundian-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 9999px;
}

.yundian-badge-orange {
  background-color: var(--yundian-orange);
  color: var(--yundian-white);
}

.yundian-badge-hot {
  background-color: #EF4444;
  color: var(--yundian-white);
}

.yundian-badge-new {
  background-color: var(--yundian-success);
  color: var(--yundian-white);
}

.yundian-badge-green {
  background-color: #ECFDF5;
  color: #059669;
}

.yundian-badge-gray {
  background-color: var(--yundian-gray);
  color: var(--yundian-text-light);
}

/* ===== FAQ Accordion ===== */
.yundian-faq-item {
  border: 1px solid var(--yundian-border);
  border-radius: 0.5rem;
  overflow: hidden;
}

.yundian-faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  text-align: left;
  font-weight: 500;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--yundian-text);
  transition: background-color 0.2s;
}

.yundian-faq-question:hover {
  background-color: var(--yundian-gray);
}

.yundian-faq-answer {
  padding: 0 1rem 0.75rem;
  font-size: 0.875rem;
  color: var(--yundian-text-light);
  display: none;
}

.yundian-faq-answer.active {
  display: block;
}

/* ===== Forms ===== */
.yundian-input,
.yundian-select,
.yundian-textarea {
  width: 100%;
  padding: 0.5rem 0.75rem;
  border: 1px solid #D1D5DB;
  border-radius: 0.375rem;
  font-size: 0.875rem;
  transition: border-color 0.2s;
  background-color: var(--yundian-white);
  color: var(--yundian-text);
}

.yundian-input:focus,
.yundian-select:focus,
.yundian-textarea:focus {
  outline: none;
  border-color: var(--yundian-orange);
}

.yundian-textarea {
  resize: vertical;
  min-height: 80px;
}

.yundian-checkbox {
  width: 1rem;
  height: 1rem;
  border-radius: 0.25rem;
  accent-color: var(--yundian-orange);
}

/* ===== Navigation ===== */
.yundian-nav-link {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: 0.375rem;
  color: #374151;
  transition: all 0.2s;
}

.yundian-nav-link:hover,
.yundian-nav-link.active {
  color: var(--yundian-orange);
  background-color: var(--yundian-orange-light);
}

/* ===== Footer ===== */
.yundian-footer {
  background-color: #1a1a2e;
  color: #9CA3AF;
}

.yundian-footer a:hover {
  color: var(--yundian-white);
}

/* ===== Utilities ===== */
.yundian-text-orange {
  color: var(--yundian-orange);
}

.yundian-bg-orange-light {
  background-color: var(--yundian-orange-light);
}

.yundian-line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.yundian-line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== Animation ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.yundian-animate-fade-in {
  animation: fadeInUp 0.6s ease forwards;
}

/* ===== Mobile Menu ===== */
/* JS toggle 使用 .is-open + max-height/opacity/visibility 控制展开收起，
   lg:hidden 控制桌面端隐藏，因此不再需要 display: none */

/* ===== Tab System ===== */
.yundian-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  color: #6B7280;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  cursor: pointer;
  transition: all 0.2s;
}

.yundian-tab-btn.active {
  color: var(--yundian-orange);
  border-bottom-color: var(--yundian-orange);
}

.yundian-tab-btn:hover {
  color: #374151;
}

.yundian-tab-panel {
  display: none;
}

.yundian-tab-panel.active {
  display: block;
}

/* ===== Breadcrumb ===== */
.yundian-breadcrumb {
  font-size: 0.875rem;
  color: #BFDBFE;
}

.yundian-breadcrumb a {
  color: #BFDBFE;
}

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

/* ===== Filter Pills ===== */
.yundian-filter-pill {
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  background-color: var(--yundian-gray);
  color: #4B5563;
}

.yundian-filter-pill:hover {
  background-color: #E5E7EB;
}

.yundian-filter-pill.active {
  background-color: var(--yundian-orange);
  color: var(--yundian-white);
}

/* ===== Quote Block ===== */
.yundian-quote {
  border-left: 4px solid var(--yundian-orange);
  padding-left: 1.5rem;
  font-style: italic;
}

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .yundian-h1 {
    font-size: 1.875rem;
  }
  .yundian-h2 {
    font-size: 1.5rem;
  }
  .yundian-section {
    padding-top: 3rem;
    padding-bottom: 3rem;
  }
}

@media (max-width: 639px) {
  .yundian-h1 {
    font-size: 1.5rem;
  }
  .yundian-h2 {
    font-size: 1.25rem;
  }
}

/* ===== Print ===== */
@media print {
  .yundian-header,
  .yundian-footer,
  .yundian-mobile-toggle {
    display: none !important;
  }
}

/* ===== WordPress Default Overrides ===== */
.wp-caption {
  max-width: 100%;
}

.aligncenter {
  display: block;
  margin: 0 auto;
}

.gallery img {
  border: none !important;
}

/* ===== Accessibility ===== */
:focus-visible {
  outline: 2px solid var(--yundian-orange);
  outline-offset: 2px;
}

.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;
}