/*
Theme Name: Smart Union 智慧工会
Theme URI: https://gonghuixing.com
Author: 厦门采菊科技有限公司
Author URI: https://gonghuixing.com
Description: 智慧工会平台官方 WordPress 主题，面向高校与企业工会数字化解决方案，SEO 友好，支持自定义菜单、Logo、小工具等完整功能。
Version: 1.1.0
Requires at least: 5.8
Tested up to: 6.7
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: smart-union
Tags: custom-menu, custom-logo, featured-images, translation-ready, blog, one-column, two-columns, footer-widgets, sticky-post, theme-options
*/

/* ==========================================================================
   CSS Variables
   ========================================================================== */
:root {
  --color-primary: #A91B2A;
  --color-primary-dark: #8B1522;
  --color-primary-light: #E52E21;
  --color-accent: #A91B2A;
  --color-accent-light: #F65848;
  --color-accent-pale: #FEA49F;
  --color-warm: #FFF3F3;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-text-muted: #999999;
  --color-bg: #ffffff;
  --color-bg-alt: #F8F8FA;
  --color-bg-warm: #FFF3F3;
  --color-bg-dark: #F4F6F9;
  --color-border: #ECECEC;
  --color-footer: #323231;
  --gradient-brand: linear-gradient(235deg, #E52E21 0%, #FEA49F 100%);
  --gradient-warm: linear-gradient(180deg, #FFF3F3 0%, #FFFFFF 100%);
  --gradient-hero: linear-gradient(135deg, rgba(255,243,243,.95) 0%, rgba(255,255,255,.88) 55%, rgba(248,248,250,.92) 100%);
  --font-sans: "PingFang SC", -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --shadow-sm: 0 2px 8px rgba(169,27,42,.06);
  --shadow-md: 0 4px 20px rgba(169,27,42,.1);
  --shadow-lg: 0 8px 32px rgba(169,27,42,.12);
  --shadow-btn: 0 2px 6px rgba(255,163,153,.8);
  --radius: 8px;
  --radius-lg: 12px;
  --radius-pill: 32px;
  --transition: .3s ease;
  --container: 1200px;
}

/* ==========================================================================
   Reset & Base
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary-light); }
ul, ol { list-style: none; }

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: #151515;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p { margin-bottom: 1rem; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.section--alt { background: var(--color-bg-alt); }
.section--warm { background: var(--color-bg-warm); }

.section__header {
  text-align: center;
  margin-bottom: 56px;
}

.section__label {
  display: inline-block;
  position: relative;
  font-size: .875rem;
  font-weight: 500;
  letter-spacing: .08em;
  color: var(--color-primary);
  margin-bottom: 16px;
  padding-bottom: 8px;
}

.section__label::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 40px;
  height: 4px;
  background: var(--gradient-brand);
  border-radius: 0 14px 14px 0;
}

.section__title {
  font-size: 2.25rem;
  margin-bottom: 16px;
  font-weight: 400;
  position: relative;
  display: inline-block;
}

.section__header .section__title {
  display: block;
}

.section__desc {
  font-size: 1.125rem;
  color: var(--color-text-light);
  max-width: 640px;
  margin: 0 auto;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 28px;
  font-size: 1rem;
  font-weight: 400;
  border-radius: var(--radius-pill);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-btn);
}
.btn--primary:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary-light);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(255,163,153,.9);
}

.btn--outline {
  background: #fff;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn--outline:hover {
  background: var(--color-bg-warm);
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--secondary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-btn);
}
.btn--secondary:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary-light);
  color: #fff;
}

.btn--ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,.7);
}
.btn--ghost:hover {
  background: rgba(255,255,255,.15);
  color: #fff;
  border-color: #fff;
}

.btn--demo {
  background: #fff;
  color: var(--color-primary);
  border: none;
  box-shadow: none;
  padding: 8px 24px;
  font-size: .9375rem;
}
.btn--demo:hover {
  background: var(--color-bg-warm);
  color: var(--color-primary);
}

.btn--consult {
  background: var(--color-primary);
  color: #fff;
  border: none;
  box-shadow: var(--shadow-btn);
  padding: 8px 24px;
  font-size: .9375rem;
}
.btn--consult:hover {
  background: var(--color-primary-light);
  color: #fff;
}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,.98);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}

.site-header.is-scrolled {
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.site-brand__text {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-primary);
  white-space: nowrap;
}

.site-brand:hover .site-brand__text { color: var(--color-primary-light); }

/* Navigation */
.main-nav {
  display: flex;
  align-items: center;
  gap: 16px;
}

.main-nav .menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.main-nav .menu li a {
  position: relative;
  display: block;
  padding: 8px 16px;
  font-size: 1rem;
  font-weight: 400;
  color: #151515;
  border-radius: 0;
  transition: color var(--transition);
  z-index: 1;
}

.main-nav .menu li a::before {
  content: '';
  position: absolute;
  left: 16px;
  bottom: 4px;
  width: 0;
  height: 8px;
  background: var(--gradient-brand);
  border-radius: 0 14px 14px 0;
  z-index: -1;
  transition: width var(--transition);
}

.main-nav .menu li a:hover,
.main-nav .menu li.current-menu-item > a,
.main-nav .menu li.current_page_item > a {
  color: var(--color-primary);
  background: transparent;
}

.main-nav .menu li a:hover::before,
.main-nav .menu li.current-menu-item > a::before,
.main-nav .menu li.current_page_item > a::before {
  width: 28px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: 8px;
}

.header-actions--mobile {
  display: none;
  width: 100%;
  flex-direction: column;
  margin: 16px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  transition: all var(--transition);
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.site-brand__logo {
  height: 40px;
  width: auto;
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  background: var(--color-bg-warm);
  overflow: hidden;
  padding-top: 80px;
}

.hero__bg {
  position: absolute;
  inset: 0;
  opacity: .35;
  object-fit: cover;
  width: 100%;
  height: 100%;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 760px;
  color: #151515;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: #fff;
  border: 1px solid rgba(169,27,42,.15);
  border-radius: var(--radius-pill);
  font-size: .875rem;
  color: var(--color-primary);
  margin-bottom: 28px;
  box-shadow: var(--shadow-sm);
}

.hero__title {
  font-size: 3.25rem;
  color: #151515;
  margin-bottom: 20px;
  line-height: 1.25;
  font-weight: 400;
}

.hero__title span {
  color: var(--color-primary);
  font-weight: 600;
}

.hero__subtitle {
  font-size: 1.125rem;
  color: var(--color-text-light);
  margin-bottom: 36px;
  line-height: 1.9;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero__stats {
  display: flex;
  gap: 56px;
  margin-top: 56px;
  padding-top: 36px;
  border-top: 1px solid var(--color-border);
}

.hero__stat-num {
  font-size: 2.75rem;
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1;
}

.hero__stat-label {
  font-size: .875rem;
  color: var(--color-text-light);
  margin-top: 8px;
}

.hero__deco {
  position: absolute;
  right: -5%;
  top: 50%;
  transform: translateY(-50%);
  width: 45%;
  max-width: 560px;
  opacity: .9;
  z-index: 1;
  pointer-events: none;
}

/* ==========================================================================
   Cards & Grids
   ========================================================================== */
.grid { display: grid; gap: 24px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--5 { grid-template-columns: repeat(5, 1fr); }

.card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  background: var(--gradient-warm);
  border-color: rgba(169,27,42,.12);
}

.card:hover::before {
  opacity: 1;
}

.card__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-brand);
  border-radius: var(--radius);
  color: #fff;
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.card__title {
  font-size: 1.125rem;
  margin-bottom: 12px;
}

.card__text {
  font-size: .9375rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

.card__num {
  font-size: 3rem;
  font-weight: 600;
  color: var(--color-primary);
  opacity: .15;
  line-height: 1;
  margin-bottom: 12px;
}

/* ==========================================================================
   Pain Points
   ========================================================================== */
.pain-card {
  position: relative;
  padding-left: 20px;
}

.pain-card::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--gradient-brand);
  border-radius: 2px;
}

/* ==========================================================================
   Functions Wheel
   ========================================================================== */
.functions-grid .card {
  text-align: center;
  padding: 28px 20px;
}

.functions-grid .card__icon {
  margin: 0 auto 16px;
}

/* ==========================================================================
   Audience Cards
   ========================================================================== */
.section--audience {
  background: #fff;
  padding-top: 72px;
}

.audience-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.audience-card {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,.08);
  text-decoration: none;
  color: inherit;
  transition: transform var(--transition), box-shadow var(--transition);
}

.audience-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 36px rgba(169,27,42,.15);
  color: inherit;
}

.audience-card__visual {
  position: relative;
  height: 220px;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
}

.audience-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,.25) 0%, rgba(0,0,0,.55) 100%);
  transition: background var(--transition);
}

.audience-card:hover .audience-card__overlay {
  background: linear-gradient(180deg, rgba(169,27,42,.2) 0%, rgba(0,0,0,.6) 100%);
}

.audience-card__visual-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  color: #fff;
  text-align: center;
  padding: 0 20px;
}

.audience-card__icon {
  width: 48px;
  height: 48px;
  color: #fff;
}

.audience-card__name {
  font-size: 1.75rem;
  font-weight: 600;
  color: #fff;
  letter-spacing: .04em;
}

.audience-card__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 28px 24px 24px;
  background: #fff;
  color: var(--color-text);
  transition: background var(--transition), color var(--transition);
}

.audience-card__desc {
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--color-text-light);
  margin: 0;
  transition: color var(--transition);
}

.audience-card__link {
  display: block;
  margin-top: 20px;
  font-size: .9375rem;
  color: #fff;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--transition), transform var(--transition), color var(--transition);
}

/* 默认第一张高亮，悬停时切换 */



.audience-cards .audience-card:first-child .audience-card__link {
  opacity: 1;
  transform: translateY(0);
}

.audience-cards:hover .audience-card:first-child:not(:hover) .audience-card__body {
  background: #fff;
}

.audience-cards:hover .audience-card:first-child:not(:hover) .audience-card__desc {
  color: var(--color-text-light);
}

.audience-cards:hover .audience-card:first-child:not(:hover) .audience-card__link {
  opacity: 0;
  transform: translateY(8px);
}

.audience-card:hover .audience-card__body {
  background: var(--color-primary);
}

.audience-card:hover .audience-card__desc {
  color: rgba(255,255,255,.92);
}

.audience-card:hover .audience-card__link {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Platform Architecture
   ========================================================================== */
.architecture {
  display: flex;
  align-items: center;
  gap: 48px;
}

.architecture__visual {
  flex: 1;
}

.architecture__content {
  flex: 1;
}

.arch-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: var(--color-bg);
  border-radius: var(--radius);
  margin-bottom: 16px;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.arch-item:hover {
  border-color: rgba(169,27,42,.2);
  box-shadow: var(--shadow-md);
  background: var(--gradient-warm);
}

.arch-item__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-brand);
  color: #fff;
  border-radius: var(--radius);
  font-size: 1.25rem;
}

.arch-item__title { font-size: 1.0625rem; margin-bottom: 4px; }
.arch-item__desc { font-size: .875rem; color: var(--color-text-light); }

/* ==========================================================================
   Features Table
   ========================================================================== */
.features-table {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.feature-tag {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: .875rem;
  transition: all var(--transition);
}

.feature-tag:hover {
  border-color: rgba(169,27,42,.25);
  background: var(--color-bg-warm);
  color: var(--color-primary);
}

.feature-tag::before {
  content: '✓';
  color: var(--color-primary);
  font-weight: 700;
}

.feature-category__header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 2px solid rgba(169,27,42,.15);
}

.feature-category__num {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-brand);
  color: #fff;
  border-radius: 50%;
  font-size: 1.125rem;
  font-weight: 600;
  flex-shrink: 0;
}

.feature-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
  margin-bottom: 48px;
}

.feature-detail:nth-child(even) .feature-detail__image { order: 2; }
.feature-detail:nth-child(even) .feature-detail__content { order: 1; }

.feature-detail__image img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.feature-list__item {
  padding: 16px 20px;
  background: var(--color-bg);
  border-radius: var(--radius);
  border-left: 3px solid var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.feature-category {
  margin-bottom: 48px;
}

/* ==========================================================================
   Fun Apps
   ========================================================================== */
.fun-app {
  display: flex;
  gap: 32px;
  align-items: center;
  padding: 40px;
  background: var(--gradient-warm);
  border: 1px solid rgba(169,27,42,.1);
  border-radius: var(--radius-lg);
  color: #151515;
  margin-bottom: 24px;
  transition: all var(--transition);
}

.fun-app:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(169,27,42,.2);
}

.fun-app__icon {
  flex-shrink: 0;
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-brand);
  border-radius: 50%;
  font-size: 2rem;
  color: #fff;
}

.fun-app__title { color: #151515; margin-bottom: 8px; }
.fun-app__desc { color: var(--color-text-light); margin-bottom: 12px; }
.fun-app__effect {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(169,27,42,.08);
  border-radius: var(--radius-pill);
  font-size: .8125rem;
  color: var(--color-primary);
}

/* ==========================================================================
   CTA
   ========================================================================== */
.cta {
  background: var(--gradient-brand);
  color: #fff;
  text-align: center;
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  opacity: .5;
}

.cta__title {
  font-size: 2.25rem;
  color: #fff;
  margin-bottom: 16px;
  font-weight: 400;
  position: relative;
  z-index: 1;
}

.cta__desc {
  font-size: 1.0625rem;
  opacity: .92;
  margin-bottom: 32px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 1;
}

.cta .btn--primary {
  position: relative;
  z-index: 1;
  background: #fff;
  color: var(--color-primary);
  box-shadow: 0 4px 16px rgba(0,0,0,.1);
}
.cta .btn--primary:hover {
  background: var(--color-bg-warm);
  color: var(--color-primary);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: var(--color-footer);
  color: rgba(255,255,255,.75);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}

.footer-brand__name {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 12px;
}

.footer-brand__desc {
  font-size: .875rem;
  line-height: 1.8;
  opacity: .7;
}

.footer-col__title {
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
}

.footer-col .menu li { margin-bottom: 10px; }
.footer-col .menu li a {
  font-size: .875rem;
  color: rgba(255,255,255,.7);
  transition: color var(--transition);
}
.footer-col .menu li a:hover { color: var(--color-accent-pale); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  font-size: .8125rem;
  opacity: .55;
  color: rgba(255,255,255,.6);
}

/* ==========================================================================
   Page Templates
   ========================================================================== */
.page-header {
  background: var(--gradient-warm);
  color: #151515;
  padding: 128px 0 64px;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.page-header__title {
  font-size: 2.25rem;
  color: #151515;
  margin-bottom: 12px;
  font-weight: 400;
}

.page-header__desc {
  font-size: 1.0625rem;
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
}

.page-content {
  padding: 60px 0;
}

.page-content .entry-content {
  max-width: 800px;
  margin: 0 auto;
}

.page-content .entry-content h2 { margin: 2rem 0 1rem; }
.page-content .entry-content h3 { margin: 1.5rem 0 .75rem; }
.page-content .entry-content ul { list-style: disc; padding-left: 1.5rem; margin-bottom: 1rem; }
.page-content .entry-content ol { list-style: decimal; padding-left: 1.5rem; margin-bottom: 1rem; }
.page-content .entry-content li { margin-bottom: .5rem; }

/* Blog */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.post-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.post-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.post-card__thumb img { width: 100%; height: 200px; object-fit: cover; }
.post-card__body { padding: 24px; }
.post-card__meta { font-size: .8125rem; color: var(--color-text-light); margin-bottom: 8px; }
.post-card__title { font-size: 1.125rem; margin-bottom: 8px; }
.post-card__title a { color: #151515; }
.post-card__title a:hover { color: var(--color-primary); }
.post-card__excerpt { font-size: .875rem; color: var(--color-text-light); }

/* Contact Form */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info__item {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-info__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-warm);
  border-radius: var(--radius);
  color: var(--color-primary);
  font-size: 1.25rem;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color var(--transition);
  margin-bottom: 16px;
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(169,27,42,.08);
}

.contact-form textarea { min-height: 140px; resize: vertical; }

/* 404 */
.error-page {
  text-align: center;
  padding: 120px 0;
}

.error-page__code {
  font-size: 8rem;
  font-weight: 600;
  color: var(--color-primary);
  opacity: .12;
  line-height: 1;
}

.error-page__title { margin-bottom: 16px; }
.error-page__desc { color: var(--color-text-light); margin-bottom: 32px; }

/* Breadcrumb */
.breadcrumb {
  padding: 12px 0;
  font-size: .875rem;
  color: var(--color-text-light);
}

.breadcrumb a { color: var(--color-text-light); }
.breadcrumb a:hover { color: var(--color-primary); }

/* Pagination */
.pagination {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
}

.pagination a,
.pagination span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  border-radius: var(--radius);
  font-size: .875rem;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.pagination a:hover,
.pagination .current {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

/* Screen reader */
.screen-reader-text {
  clip: rect(1px, 1px, 1px, 1px);
  position: absolute !important;
  height: 1px;
  width: 1px;
  overflow: hidden;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1024px) {
  .grid--4, .grid--5 { grid-template-columns: repeat(2, 1fr); }
  .audience-cards { grid-template-columns: repeat(2, 1fr); }
  .audience-cards .audience-card:last-child { grid-column: 1 / -1; max-width: 480px; margin: 0 auto; width: 100%; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .architecture { flex-direction: column; }
  .feature-detail { grid-template-columns: 1fr; }
  .feature-detail:nth-child(even) .feature-detail__image { order: 0; }
  .posts-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  .section { padding: 56px 0; }
  .section__title { font-size: 1.75rem; }
  .hero { min-height: auto; padding-bottom: 60px; }
  .hero__title { font-size: 2rem; }
  .hero__stats { flex-direction: column; gap: 24px; }
  .hero__deco { display: none; }
  .header-actions { display: none; }
  .header-actions--mobile { display: flex; }
  .audience-cards { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .audience-cards .audience-card:last-child { max-width: none; }
  .audience-card__visual { height: 200px; }
  .grid--2, .grid--3, .grid--4, .grid--5 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .posts-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .fun-app { flex-direction: column; text-align: center; }

  .nav-toggle { display: flex; }

  .main-nav {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    flex-direction: column;
    padding: 16px;
    box-shadow: var(--shadow-lg);
    transform: translateY(-120%);
    opacity: 0;
    transition: all var(--transition);
    pointer-events: none;
  }

  .main-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .main-nav .menu {
    flex-direction: column;
    width: 100%;
  }

  .main-nav .menu li { width: 100%; }
  .main-nav .menu li a { padding: 12px 16px; }
}