/*
Theme Name: WPS Office Theme
Theme URI: https://www.wps-wp.com/
Author: WPS Team
Author URI: https://www.wps-wp.com/
Description: 参考 WPS Office 官网设计的现代化 WordPress 主题，具备完整 SEO 优化、语义化 HTML5 结构、响应式布局与高性能表现。适用于办公软件、产品展示类网站。
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.4
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: wps-office-theme
Tags: custom-logo, custom-menu, featured-images, footer-widgets, full-width-template, sticky-post, theme-options, threaded-comments, translation-ready, block-styles, wide-blocks, accessibility-ready, one-column, two-columns, right-sidebar, flexible-header, blog, news
*/

/* ==========================================================================
   CSS Variables - Design Tokens
   ========================================================================== */
:root {
  --color-primary: #0066ff;
  --color-primary-hover: #0052cc;
  --color-secondary: #1a1a2e;
  --color-accent: #00d4aa;
  --color-download: linear-gradient(270deg, #ff06a2 0%, #ff6225 100%);
  --color-download-shadow: rgba(255, 0, 60, 0.16);
  --color-text: #333333;
  --color-text-light: #666666;
  --color-bg: #ffffff;
  --color-bg-alt: #f8f9fa;
  --color-border: #e5e7eb;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-heading: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --container-max: 1200px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
  --shadow-glow: 0 8px 32px rgba(0, 102, 255, 0.08);
  --transition: 0.3s ease;
  --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --gradient-accent: linear-gradient(135deg, #ff06a2 0%, #ff6225 100%);
  --gradient-hero-mesh: radial-gradient(ellipse 85% 55% at 50% -15%, rgba(0, 102, 255, 0.14), transparent 58%),
    radial-gradient(ellipse 50% 35% at 95% 15%, rgba(255, 6, 162, 0.08), transparent 55%),
    radial-gradient(ellipse 45% 30% at 5% 85%, rgba(0, 212, 170, 0.06), transparent 50%);
}

.text-gradient {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: #f4f7fb;
  background-image: linear-gradient(180deg, #ffffff 0%, #f8fafc 28rem, #f1f5f9 100%);
  font-feature-settings: "kern" 1, "liga" 1;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, .hero-title, .page-title {
  font-family: var(--font-heading);
}

::selection {
  background: rgba(0, 102, 255, 0.18);
  color: var(--color-secondary);
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

button:focus:not(:focus-visible),
.js-download-link:focus:not(:focus-visible) {
  outline: none;
}

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-hover);
}

/* ==========================================================================
   Layout
   ========================================================================== */
.site-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.06), 0 8px 24px rgba(15, 23, 42, 0.04);
  border-bottom: 1px solid rgba(226, 232, 240, 0.9);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
}

.site-branding {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.site-logo {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, #ff06a2 0%, #ff6225 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.site-logo-img {
  background: none;
  -webkit-background-clip: unset;
  background-clip: unset;
  color: inherit;
}
.site-logo-img img {
  height: 40px;
  width: auto;
  display: block;
  vertical-align: middle;
}

.site-description {
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin: 0;
}

.main-navigation ul,
.main-navigation .nav-menu {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: var(--spacing-md);
}

.main-navigation a {
  color: var(--color-text);
  font-weight: 500;
}

.main-navigation a:hover {
  color: var(--color-primary);
}

.main-navigation .menu-item-has-children {
  position: relative;
}
.main-navigation .menu-item-has-children > a::after {
  content: '';
  display: inline-block;
  margin-left: 4px;
  border: 4px solid transparent;
  border-top-color: currentColor;
  border-bottom: 0;
  vertical-align: 3px;
  opacity: 0.7;
}
.main-navigation .menu-item-has-children > a[role="button"] {
  cursor: pointer;
}
.main-navigation .sub-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  min-width: 140px;
  padding: var(--spacing-xs) 0;
  margin: 0;
  list-style: none;
  background: var(--color-bg);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12), 0 0 1px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--color-border);
  z-index: 100;
  animation: dropdownFade 0.2s ease;
}
.main-navigation .sub-menu::before {
  content: '';
  display: block;
  height: 8px;
  margin-top: -8px;
}
@keyframes dropdownFade {
  from { opacity: 0; transform: translateX(-50%) translateY(-4px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}
.main-navigation .menu-item-has-children:hover .sub-menu {
  display: block;
}
.main-navigation .sub-menu li {
  margin: 0;
}
.main-navigation .sub-menu li:first-child a {
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}
.main-navigation .sub-menu li:last-child a {
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}
.main-navigation .sub-menu a {
  display: flex;
  align-items: center;
  gap: 0.4em;
  padding: 0.35em var(--spacing-md);
  white-space: nowrap;
  font-size: 0.8125rem;
  font-weight: normal;
  transition: all var(--transition);
  cursor: pointer;
}
.main-navigation .sub-menu .platform-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}
.main-navigation .sub-menu a:hover {
  background: linear-gradient(135deg, rgba(255, 6, 162, 0.06) 0%, rgba(255, 98, 37, 0.06) 100%);
  color: #ff06a2;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  position: relative;
  /* 与 portal 脚本配合：避免首屏内仍挂在 hero 内瞬间被裁切（部署端偶发） */
  overflow: visible;
  padding: var(--spacing-xl) 0 calc(var(--spacing-xl) + var(--spacing-md));
  background: linear-gradient(165deg, #f0f7ff 0%, #e8f4fd 45%, #e0effc 100%);
  text-align: center;
}

.hero-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-hero-mesh);
  pointer-events: none;
}

.hero-section .site-container {
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 var(--spacing-sm);
  color: var(--color-secondary);
  text-wrap: balance;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2.5vw, 1.25rem);
  color: var(--color-text-light);
  margin: 0 auto var(--spacing-md);
  max-width: 36rem;
  line-height: 1.65;
  text-wrap: balance;
}

.btn {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--color-primary);
  color: white !important;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Hero 下载区 - 参考 wps-wp.com */
.hero-logo-image {
  margin-bottom: var(--spacing-md);
}
.hero-logo-image img {
  height: clamp(140px, 28vw, 180px);
  width: auto;
  display: block;
  margin: 0 auto;
  filter: drop-shadow(0 12px 28px rgba(0, 102, 255, 0.12));
  transition: transform var(--transition-smooth), filter var(--transition-smooth);
}
.hero-section:hover .hero-logo-image img {
  transform: translateY(-2px);
  filter: drop-shadow(0 16px 36px rgba(0, 102, 255, 0.16));
}
.hero-download-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-2xl);
}
.btn-download {
  background: var(--color-download) !important;
  color: #fff !important;
  padding: 0.5rem 4rem;
  border-radius: 2rem;
  box-shadow: 0 12px 32px var(--color-download-shadow);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  transition: transform var(--transition), box-shadow var(--transition);
}
.btn-download:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 16px 40px var(--color-download-shadow);
}

/* Hero 下载下拉菜单 */
.download-dropdown {
  position: relative;
  display: inline-block;
}
.download-dropdown-trigger {
  cursor: pointer;
  font-family: inherit;
  border: none;
  font-size: 1rem;
  font-weight: 600;
}
.download-dropdown-trigger .download-dropdown-arrow {
  font-size: 0.65em;
  margin-left: 0.25em;
  opacity: 0.9;
  transition: transform var(--transition);
}
.download-dropdown.open .download-dropdown-trigger .download-dropdown-arrow {
  transform: rotate(180deg);
}
.download-dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  min-width: 140px;
  padding: var(--spacing-xs) 0;
  margin: 0;
  list-style: none;
  background: var(--color-bg);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12), 0 0 1px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--color-border);
  z-index: 200;
}
.download-dropdown.open .download-dropdown-menu {
  display: block;
}

/* 菜单挂到 body 后：与脚本内联配合，防止主题/插件覆盖 */
.download-dropdown-menu.wps-hero-download-menu--portal {
  display: block !important;
  visibility: visible !important;
  opacity: 1 !important;
  animation: none !important;
  z-index: 2147483647 !important;
  box-sizing: border-box;
}

.download-dropdown-menu li {
  margin: 0;
}
.download-dropdown-menu a {
  display: flex;
  align-items: center;
  gap: 0.4em;
  padding: 0.35em var(--spacing-md);
  white-space: nowrap;
  font-size: 0.8125rem;
  font-weight: normal;
  color: var(--color-text);
  transition: all var(--transition);
  cursor: pointer;
}
.download-dropdown-menu .platform-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}
.download-dropdown-menu a:hover {
  background: linear-gradient(135deg, rgba(255, 6, 162, 0.06) 0%, rgba(255, 98, 37, 0.06) 100%);
  color: #ff06a2;
}

/* Product Sections - 参考 wps-wp.com */
.product-section {
  padding: calc(var(--spacing-lg) + var(--spacing-xs)) 0;
  text-align: center;
  position: relative;
}
.section-desc {
  max-width: 700px;
  margin: 0 auto var(--spacing-md);
  color: var(--color-text-light);
  font-size: 1rem;
  line-height: 1.65;
}
.product-ai {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  color: var(--color-text);
  background: linear-gradient(180deg, #e5f2fc 0%, #f5f0f8 25%, rgba(255, 240, 248, 0.9) 50%, #f8f5fa 75%, #f8f9fa 100%);
}
.product-ai .section-title,
.product-ai .section-desc {
  color: var(--color-secondary);
}
.product-ai-intro-image {
  width: 100%;
  padding: 0 var(--spacing-sm);
  overflow: hidden;
}
.product-ai-intro-image img {
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  display: block;
  vertical-align: bottom;
}
.product-ai-image {
  width: 100%;
  padding: 0 var(--spacing-sm);
  overflow: hidden;
}
.product-ai-image img {
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  display: block;
}
.product-doc {
  padding-top: var(--spacing-sm);
  background: linear-gradient(180deg, #f8f9fa 0%, #f5f6f8 50%, #f5f6f8 100%);
}
.product-ux {
  background: linear-gradient(180deg, #f5f6f8 0%, #fafbfc 50%, #ffffff 100%);
}
.product-sync {
  background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 50%, #f8f9fa 100%);
}
.product-365 {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  color: var(--color-text);
  background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 50%, #f5f7fa 100%);
}
.product-365 .site-container {
  order: 1;
  padding-bottom: 0;
}
.product-365-image {
  order: 2;
  width: 100%;
  padding: 0 var(--spacing-sm);
  overflow: hidden;
}
.product-365-image img {
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  display: block;
  vertical-align: bottom;
  transition: transform 0.4s ease;
}
.product-365-image:hover img {
  transform: scale(1.05);
}
.product-365 .section-title {
  background: linear-gradient(135deg, #ff06a2 0%, #ff6225 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.product-365 .section-desc {
  color: var(--color-secondary);
}
.product-365 .btn-primary {
  margin-top: var(--spacing-md);
}
.product-illustration {
  max-width: 900px;
  margin: 0 auto;
}
.ai-placeholder,
.doc-placeholder {
  padding: var(--spacing-2xl);
  background: rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  font-size: 1.25rem;
  color: rgba(255,255,255,0.8);
}
.doc-placeholder {
  background: rgba(0,0,0,0.05);
  color: var(--color-text-light);
}
.product-doc-image {
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(15, 23, 42, 0.04);
  transition: box-shadow var(--transition-smooth), transform var(--transition-smooth);
}
.product-doc-image:hover {
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.14), 0 0 0 1px rgba(0, 102, 255, 0.06);
  transform: translateY(-2px);
}
.product-doc-image img {
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
  display: block;
  border-radius: var(--radius-lg);
}

/* 文章网格 */
.article-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--spacing-md);
  text-align: left;
}
.article-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(226, 232, 240, 0.9);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition);
  will-change: transform;
}
.article-card:hover {
  box-shadow: var(--shadow-md), var(--shadow-glow);
  border-color: rgba(0, 102, 255, 0.15);
  transform: translateY(-5px);
}
.article-thumb {
  display: block;
  height: 180px;
  background-color: #e8f4fd;
  background-size: cover;
  background-position: center;
}
.article-content {
  padding: var(--spacing-sm) var(--spacing-md);
}
.article-content h3 {
  font-size: 1.05rem;
  margin: 0 0 var(--spacing-xs);
}
.article-content h3 a {
  color: var(--color-secondary);
}
.article-content h3 a:hover {
  color: var(--color-primary);
}
.article-content p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.5;
}

/* FAQ Section */
.faq-section {
  padding: calc(var(--spacing-xl) + var(--spacing-xs)) 0;
  background: linear-gradient(180deg, #f1f5f9 0%, #f8fafc 38%, #ffffff 100%);
}
.faq-section > .site-container > .section-title {
  margin-bottom: var(--spacing-lg);
}
.faq-list {
  max-width: 960px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--spacing-md);
}
.faq-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(226, 232, 240, 0.95);
  box-shadow: var(--shadow-sm);
  background: var(--color-bg);
  transition: border-color var(--transition), box-shadow var(--transition-smooth), transform var(--transition);
}
.faq-item:hover {
  border-color: rgba(0, 102, 255, 0.18);
  box-shadow: var(--shadow-md);
}
.faq-item:has(.faq-question.active) {
  border-color: rgba(0, 102, 255, 0.22);
  box-shadow: var(--shadow-md), 0 0 0 1px rgba(0, 102, 255, 0.06);
}
@media (max-width: 768px) {
  .faq-list {
    grid-template-columns: 1fr;
  }
}
.faq-question {
  width: 100%;
  background: var(--color-bg);
  border: none;
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: 1rem;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background var(--transition);
}
.faq-question:hover {
  background: linear-gradient(90deg, rgba(0, 102, 255, 0.04) 0%, #fff5f5 100%);
}
.faq-question.active {
  background: linear-gradient(90deg, rgba(0, 102, 255, 0.06) 0%, rgba(255, 245, 245, 0.85) 100%);
}
.faq-question.active .faq-toggle {
  transform: rotate(45deg);
  color: #ff06a2;
}
.faq-toggle {
  font-size: 1.5rem;
  font-weight: bold;
  color: #e24a4a;
  transition: transform var(--transition-smooth), color var(--transition);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-smooth);
  background: linear-gradient(180deg, rgba(248, 250, 252, 0.9) 0%, rgba(255, 255, 255, 0.98) 100%);
}
.faq-answer.open {
  max-height: 480px;
}
.faq-answer p {
  margin: 0;
  padding: 0 var(--spacing-md) var(--spacing-md);
  color: var(--color-text-light);
  line-height: 1.65;
}

/* 首页 · FAQ 下方「最新文章」3×3 */
.front-latest-posts {
  margin-top: var(--spacing-2xl);
  padding: var(--spacing-xl) var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-lg);
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 250, 252, 0.98) 55%, rgba(241, 245, 249, 0.85) 100%);
  border: 1px solid rgba(226, 232, 240, 0.95);
  box-shadow: var(--shadow-sm), inset 0 1px 0 rgba(255, 255, 255, 0.8);
}
.front-latest-posts-subtitle {
  position: relative;
  margin: 0 auto var(--spacing-lg);
  max-width: 960px;
  padding-left: 0.85rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--color-secondary);
  line-height: 1.4;
}

.front-latest-posts-subtitle::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.08em;
  bottom: 0.08em;
  width: 3px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--color-primary) 0%, #ff06a2 100%);
  box-shadow: 0 1px 4px rgba(0, 102, 255, 0.25);
}
.front-latest-posts-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-md);
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
}
.front-latest-posts-cell {
  margin: 0;
  min-width: 0;
}
.front-latest-post-card {
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(226, 232, 240, 0.95);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-smooth), transform var(--transition-smooth), border-color var(--transition);
}
.front-latest-post-card:hover {
  box-shadow: var(--shadow-md), var(--shadow-glow);
  border-color: rgba(0, 102, 255, 0.14);
  transform: translateY(-3px);
}
.front-latest-post-thumb {
  display: block;
  aspect-ratio: 16 / 10;
  background: var(--color-bg-alt);
  overflow: hidden;
}
.front-latest-post-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}
.front-latest-post-card:hover .front-latest-post-thumb img {
  transform: scale(1.04);
}
.front-latest-post-thumb--empty {
  background: linear-gradient(135deg, #eef2f7 0%, #e2e8f0 100%);
}
.front-latest-post-card--placeholder {
  border: 1px dashed var(--color-border);
  background: #fafbfc;
  box-shadow: none;
}
.front-latest-post-card--placeholder:hover {
  box-shadow: none;
}
.front-latest-post-thumb--placeholder {
  background: repeating-linear-gradient(
    -12deg,
    #f1f5f9,
    #f1f5f9 8px,
    #e8edf3 8px,
    #e8edf3 16px
  );
}
.front-latest-post-body {
  padding: var(--spacing-sm) var(--spacing-md) var(--spacing-md);
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.front-latest-post-date {
  font-size: 0.8125rem;
  color: var(--color-text-light);
}
.front-latest-post-heading {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
}
.front-latest-post-heading a {
  color: var(--color-secondary);
  text-decoration: none;
}
.front-latest-post-heading a:hover {
  color: var(--color-primary);
}
.front-latest-post-placeholder-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-light);
}
.front-latest-post-placeholder-hint {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--color-text-light);
  line-height: 1.5;
}
@media (max-width: 900px) {
  .front-latest-posts-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 520px) {
  .front-latest-posts-grid {
    grid-template-columns: 1fr;
  }
}

/* 软件下载区 */
.download-section {
  padding: var(--spacing-2xl) 0;
  background: var(--color-bg);
}
.download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
  max-width: 600px;
  margin: 0 auto;
}
.download-card {
  padding: var(--spacing-xl);
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}
.download-card:hover {
  box-shadow: var(--shadow-md);
}
.download-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: var(--spacing-md);
}
.download-name {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 var(--spacing-xs);
}
.download-ver {
  display: block;
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-md);
}
.download-card .btn {
  margin-top: var(--spacing-sm);
}

/* 多平台下载区 */
.download-platforms-section {
  position: relative;
  overflow: hidden;
  padding: var(--spacing-lg) 0 var(--spacing-md);
  background: linear-gradient(180deg, #f8f9fa 0%, #f0f2f5 100%);
}

.download-platforms-section::before {
  content: '';
  position: absolute;
  inset: -20% 0 40%;
  background: radial-gradient(ellipse 90% 60% at 50% 0%, rgba(0, 102, 255, 0.05), transparent 72%);
  pointer-events: none;
}

.download-platforms-section > .site-container {
  position: relative;
  z-index: 1;
}
.download-platforms-section .section-title {
  font-size: 1.4rem;
  margin-bottom: var(--spacing-xs);
}
.download-platforms-desc {
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin: 0 0 var(--spacing-md);
  max-width: 420px;
  margin-left: auto;
  margin-right: auto;
}
.download-platforms-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-md);
  max-width: 720px;
  margin: 0 auto;
}
.download-platform-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--spacing-md);
  background: rgba(255, 255, 255, 0.72);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(226, 232, 240, 0.85);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition), background var(--transition);
}

.download-platform-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: rgba(0, 102, 255, 0.15);
  background: rgba(255, 255, 255, 0.95);
}
.download-platform-icon {
  width: 32px;
  height: 32px;
  color: var(--color-secondary);
  margin-bottom: var(--spacing-sm);
}
.download-platform-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
.download-platform-name {
  font-size: 0.9rem;
  font-weight: 600;
  margin: 0 0 var(--spacing-xs);
  color: var(--color-secondary);
}
.download-platform-ver {
  font-size: 0.75rem;
  color: var(--color-text-light);
  margin: 0 0 var(--spacing-sm);
  white-space: nowrap;
}
.btn-download-platform {
  display: inline-block;
  padding: 0.3em 0.9em;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 2rem;
  text-decoration: none;
  transition: all var(--transition);
  white-space: nowrap;
  min-width: max-content;
  cursor: pointer;
}
.btn-download-platform:hover {
  border-color: transparent;
  color: #fff;
  background: var(--gradient-accent);
  box-shadow: 0 6px 20px rgba(255, 6, 162, 0.25);
}
@media (max-width: 768px) {
  .download-platforms-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 480px) {
  .download-platforms-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Features Section
   ========================================================================== */
.features-section {
  padding: var(--spacing-2xl) 0;
}

.section-title {
  position: relative;
  font-size: clamp(1.5rem, 3.5vw, 1.75rem);
  font-weight: 700;
  text-align: center;
  margin: 0 0 var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  color: var(--color-secondary);
  letter-spacing: -0.015em;
}

.section-title::after {
  content: '';
  display: block;
  width: 2.75rem;
  height: 3px;
  margin: var(--spacing-sm) auto 0;
  border-radius: 3px;
  background: var(--gradient-accent);
  box-shadow: 0 2px 8px rgba(255, 6, 162, 0.25);
}

.download-platforms-section .section-title::after {
  width: 2.25rem;
  height: 2px;
  box-shadow: none;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--spacing-sm);
}

.feature-card {
  padding: var(--spacing-lg);
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(226, 232, 240, 0.9);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-smooth), transform var(--transition-smooth), border-color var(--transition);
}

.feature-card:hover {
  box-shadow: var(--shadow-md), var(--shadow-glow);
  border-color: rgba(0, 102, 255, 0.12);
  transform: translateY(-4px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, #ff06a2 0%, #ff6225 100%);
  border-radius: var(--radius-sm);
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}
.feature-icon-inner {
  filter: brightness(0) invert(1);
  opacity: 0.95;
  text-shadow: 0 1px 2px rgba(255, 106, 0, 0.3);
}
.feature-icon-img {
  background: none;
  width: auto;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.feature-icon-img img {
  max-width: 100%;
  max-height: 80px;
  width: auto;
  height: auto;
  object-fit: contain;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 var(--spacing-xs);
}

.feature-desc {
  color: var(--color-text-light);
  margin: 0;
  font-size: 0.9375rem;
}

/* ==========================================================================
   Stats Section
   ========================================================================== */
.stats-section {
  padding: var(--spacing-xl) 0;
  background: var(--color-secondary);
  color: white;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
  text-align: center;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  margin: 0 0 var(--spacing-xs);
}

.stat-label {
  font-size: 0.875rem;
  opacity: 0.9;
  margin: 0;
}

/* ==========================================================================
   Content Area
   ========================================================================== */
.site-main {
  padding: var(--spacing-xl) 0;
  min-height: 50vh;
  background: linear-gradient(180deg, #f0f7ff 0%, #e8f4fd 70%, #e5f2fc 100%);
}
.site-main:has(.download-platforms-section) {
  padding-bottom: 0;
}

.entry-header {
  margin-bottom: var(--spacing-lg);
}

.entry-title {
  font-size: 2rem;
  font-weight: 700;
  margin: 0 0 var(--spacing-sm);
}

.entry-content {
  font-size: 1.0625rem;
}

.entry-content h2 {
  font-size: 1.5rem;
  margin: var(--spacing-xl) 0 var(--spacing-md);
}

.entry-content p {
  margin: 0 0 var(--spacing-md);
}

/* Posts Grid (Blog) */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

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

.post-card:hover {
  box-shadow: var(--shadow-md);
}

.post-thumbnail-link {
  display: block;
  overflow: hidden;
}

.post-thumbnail-link img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform var(--transition);
}

.post-card:hover .post-thumbnail-link img {
  transform: scale(1.05);
}

.post-content {
  padding: var(--spacing-md);
}

.post-card .entry-title {
  font-size: 1.25rem;
  margin: 0 0 var(--spacing-xs);
}

.post-card .entry-title a {
  color: var(--color-secondary);
}

.post-card .entry-title a:hover {
  color: var(--color-primary);
}

.entry-meta {
  font-size: 0.875rem;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-sm);
}

.entry-summary {
  font-size: 0.9375rem;
  color: var(--color-text-light);
}

.page-header {
  margin-bottom: var(--spacing-xl);
}

.page-title {
  font-size: 2rem;
  font-weight: 700;
  margin: 0;
}

/* Help Page */
.help-search-wrap {
  margin: 0 0 var(--spacing-lg);
}

.help-search-form {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.help-search-autocomplete {
  position: relative;
  flex: 1;
  min-width: 0;
}

.help-search-form input[type="search"] {
  width: 100%;
  padding: 0.65rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 2rem;
  background: #fff;
  font-size: 0.9375rem;
  color: var(--color-text);
  min-height: 44px;
}

.help-search-form input[type="search"]:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(0, 102, 255, 0.12);
}

.help-search-form .btn {
  white-space: nowrap;
  min-height: 44px;
  border-radius: 2rem;
}

.help-search-form .btn-primary {
  background: var(--color-download);
  color: #fff !important;
  box-shadow: 0 10px 24px var(--color-download-shadow);
  border: none;
}

.help-search-form .btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 30px var(--color-download-shadow);
}

.help-search-suggest {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  margin: 0;
  padding: 0.35rem 0;
  list-style: none;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  z-index: 120;
}

.help-search-suggest li {
  margin: 0;
}

.help-search-suggest-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-sm);
  padding: 0.5rem 0.9rem;
  color: var(--color-text);
}

.help-search-suggest-item:hover {
  background: linear-gradient(135deg, rgba(255, 6, 162, 0.06) 0%, rgba(255, 98, 37, 0.06) 100%);
  color: #ff06a2;
}

.help-search-suggest-item.is-active {
  background: linear-gradient(135deg, rgba(255, 6, 162, 0.1) 0%, rgba(255, 98, 37, 0.1) 100%);
  color: #ff06a2;
}

.help-search-suggest-title {
  font-size: 0.9rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.help-search-suggest-meta {
  font-size: 0.75rem;
  color: var(--color-text-light);
  flex-shrink: 0;
}

.help-search-suggest-empty {
  padding: 0.5rem 0.9rem;
  font-size: 0.875rem;
  color: var(--color-text-light);
}

.help-search-hint {
  margin: var(--spacing-sm) 0 0;
  font-size: 0.875rem;
  color: var(--color-text-light);
}

.help-posts-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.help-posts-grid .post-card {
  transform-origin: center;
  transition: transform var(--transition), box-shadow var(--transition);
}

.help-posts-grid .post-card:hover {
  transform: translateY(-6px) scale(1.03);
  box-shadow: 0 12px 28px rgba(26, 26, 46, 0.14);
}

.help-posts-grid .post-card .entry-title a {
  transition: color var(--transition), background var(--transition);
}

.help-posts-grid .post-card .entry-title a:hover,
.help-posts-grid .post-card .entry-title a:focus-visible {
  background: linear-gradient(90deg, var(--color-primary) 0%, #3f7bff 50%, #6a5bff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

@media (max-width: 992px) {
  .help-posts-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .help-search-form {
    flex-direction: column;
    align-items: stretch;
  }

  .help-posts-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  padding: var(--spacing-lg) 0 calc(var(--spacing-lg) + var(--spacing-xs));
  background: linear-gradient(180deg, #eef2f7 0%, #e2e8f0 45%, #f1f5f9 100%);
  border-top: 1px solid rgba(203, 213, 225, 0.85);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6);
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(148, 163, 184, 0.25);
}
.footer-left {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}
.footer-copyright {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--color-text-light);
}
.footer-report {
  margin: 0;
  font-size: 0.75rem;
  color: var(--color-text-light);
}
.footer-report a {
  color: var(--color-text-light);
}
.footer-report a:hover {
  color: var(--color-primary);
}
.footer-lang-switcher {
  position: relative;
}
.lang-switcher-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
  padding: 0.35em 0.75em;
  font-size: 0.8125rem;
  color: var(--color-text-light);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}
.lang-switcher-btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.lang-arrow {
  font-size: 0.9em;
  opacity: 0.8;
}
.lang-switcher-menu {
  position: absolute;
  bottom: 100%;
  left: 0;
  margin: 0 0 0.25em 0;
  padding: 0.25em 0;
  list-style: none;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  min-width: 140px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(4px);
  transition: opacity 0.2s, visibility 0.2s, transform 0.2s;
  z-index: 100;
}
.lang-switcher-menu.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.lang-switcher-menu li {
  margin: 0;
}
.lang-switcher-menu a {
  display: block;
  padding: 0.4em 1em;
  font-size: 0.8125rem;
  color: var(--color-text);
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}
.lang-switcher-menu a:hover {
  background: var(--color-bg-alt);
  color: var(--color-primary);
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 768px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .main-navigation ul {
    flex-wrap: wrap;
  }

  .hero-section {
    padding: var(--spacing-xl) 0;
  }

}

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

.screen-reader-text:focus {
  clip: auto !important;
  height: auto;
  width: auto;
  padding: 0.5rem;
  background: var(--color-bg);
}

/* ==========================================================================
   第二阶段美化：动效、导航细节、装饰与占位质感
   ========================================================================== */

@media (prefers-reduced-motion: no-preference) {
  .hero-section .hero-logo-image,
  .hero-section .hero-title,
  .hero-section .hero-subtitle {
    animation: wpsPhase2HeroIn 0.7s cubic-bezier(0.22, 1, 0.36, 1) both;
  }

  /* 下载区不用 transform 动画，避免形成 containing block 导致子级 position:fixed 错位 */
  .hero-section .hero-download-area {
    animation: wpsPhase2HeroDownloadFade 0.7s cubic-bezier(0.22, 1, 0.36, 1) both;
    animation-delay: 0.26s;
  }

  .hero-section .hero-logo-image {
    animation-delay: 0.04s;
  }

  .hero-section .hero-title {
    animation-delay: 0.1s;
  }

  .hero-section .hero-subtitle {
    animation-delay: 0.18s;
  }
}

@keyframes wpsPhase2HeroIn {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes wpsPhase2HeroDownloadFade {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.main-navigation .nav-menu > li > a {
  position: relative;
  padding-bottom: 2px;
}

.main-navigation .nav-menu > li > a:not([role="button"])::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 1px;
  background: var(--gradient-accent);
  transition: width var(--transition-smooth);
}

.main-navigation .nav-menu > li > a:not([role="button"]):hover::after,
.main-navigation .nav-menu > li.current-menu-item > a:not([role="button"])::after,
.main-navigation .nav-menu > li.current_page_item > a:not([role="button"])::after {
  width: 100%;
}

.product-ai::after {
  content: '';
  position: absolute;
  width: min(520px, 95vw);
  height: min(520px, 95vw);
  border-radius: 50%;
  top: -8%;
  right: -22%;
  background: radial-gradient(circle at 35% 40%, rgba(255, 6, 162, 0.09) 0%, transparent 62%);
  pointer-events: none;
  z-index: 0;
}

.product-ai > * {
  position: relative;
  z-index: 1;
}

.product-doc {
  position: relative;
}

.product-doc::before {
  content: '';
  position: absolute;
  width: min(400px, 70vw);
  height: min(400px, 70vw);
  border-radius: 50%;
  bottom: -15%;
  left: -18%;
  background: radial-gradient(circle at 50% 50%, rgba(0, 102, 255, 0.06) 0%, transparent 65%);
  pointer-events: none;
  z-index: 0;
}

.product-doc > .site-container {
  position: relative;
  z-index: 1;
}

.btn-download {
  position: relative;
  overflow: hidden;
}

.btn-download::after {
  content: '';
  position: absolute;
  inset: 0;
  left: -40%;
  width: 40%;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, 0.35), transparent);
  transform: skewX(-18deg) translateX(-120%);
  transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
  pointer-events: none;
}

@media (prefers-reduced-motion: no-preference) {
  .btn-download:hover::after,
  .btn-download:focus-visible::after {
    transform: skewX(-18deg) translateX(380%);
  }
}

.front-latest-post-thumb--placeholder {
  position: relative;
  overflow: hidden;
}

@media (prefers-reduced-motion: no-preference) {
  .front-latest-post-thumb--placeholder::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
      100deg,
      transparent 36%,
      rgba(255, 255, 255, 0.55) 50%,
      transparent 64%
    );
    animation: wpsPhase2Shimmer 2.4s ease-in-out infinite;
  }
}

@keyframes wpsPhase2Shimmer {
  0% {
    transform: translateX(-100%);
  }

  100% {
    transform: translateX(100%);
  }
}

.lang-switcher-btn {
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.65);
}

.lang-switcher-menu {
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md), 0 0 0 1px rgba(15, 23, 42, 0.04);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .hero-section .hero-logo-image,
  .hero-section .hero-title,
  .hero-section .hero-subtitle,
  .hero-section .hero-download-area {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }

  .btn-download::after {
    display: none;
  }

  .front-latest-post-thumb--placeholder::after {
    animation: none !important;
  }
}

/* Breadcrumb */
.wps-breadcrumb-wrap {
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--color-border);
}

.wps-breadcrumb {
  width: 100%;
}

.wps-breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.25rem;
  margin: 0;
  padding: var(--spacing-xs) 0 0;
  list-style: none;
  font-size: 0.8125rem;
  line-height: 1.4;
  color: var(--color-text-light);
}

.wps-breadcrumb-list a {
  color: var(--color-text-light);
  text-decoration: none;
  transition: color var(--transition);
}

.wps-breadcrumb-list a:hover,
.wps-breadcrumb-list a:focus {
  color: var(--color-primary);
}

.wps-breadcrumb-sep {
  color: var(--color-border);
  user-select: none;
  padding: 0 0.15rem;
}

.wps-breadcrumb-item span[aria-current="page"] {
  color: var(--color-text);
  font-weight: 500;
}