* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-2: #6366f1;
  --primary-soft: #eff6ff;
  --text: #1f2937;
  --text-light: #6b7280;
  --bg: #ffffff;
  --bg-gray: #f9fafb;
  --border: #e5e7eb;
  --radius: 10px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  line-height: 1.7;
  background: var(--bg);
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* 头部导航 */
.header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}
.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo { font-size: 20px; font-weight: 700; color: var(--text); }
.logo:hover { text-decoration: none; color: var(--primary); }
.nav { display: flex; gap: 28px; }
.nav a { color: var(--text); font-size: 15px; font-weight: 500; }
.nav a:hover { color: var(--primary); text-decoration: none; }

/* Hero */
.hero {
  background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
  padding: 70px 0;
  text-align: center;
}
.hero h1 { font-size: 40px; margin-bottom: 16px; color: #1e293b; }
.hero p { font-size: 18px; color: var(--text-light); max-width: 640px; margin: 0 auto 28px; }
.btn {
  display: inline-block;
  padding: 12px 28px;
  background: var(--primary);
  color: #fff;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: background 0.2s;
}
.btn:hover { background: var(--primary-dark); text-decoration: none; color: #fff; }
.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
}
.btn-outline:hover { background: var(--primary); color: #fff; }

/* 区块标题 */
.section { padding: 60px 0; }
.section-title {
  font-size: 28px;
  text-align: center;
  margin-bottom: 8px;
}
.section-sub {
  text-align: center;
  color: var(--text-light);
  margin-bottom: 40px;
}

/* 文章卡片 */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

/* 文章列表样式（标题 + 发布时间） */
.articles-list {
  max-width: 900px;
  margin: 0 auto;
}
.pin-tag {
  display: inline-block;
  background: #ef4444;
  color: #fff;
  font-size: 12px;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
  flex-shrink: 0;
}
.article-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: box-shadow 0.2s;
}
.article-card:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.06); }
.article-card h3 { font-size: 17px; margin-bottom: 10px; line-height: 1.5; }
.article-card h3 a { color: var(--text); }
.article-card h3 a:hover { color: var(--primary); }
.article-card .summary { color: var(--text-light); font-size: 14px; margin-bottom: 14px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.article-card .meta { font-size: 12px; color: var(--text-light); display: flex; justify-content: space-between; }

/* 文章详情页 */
.article-detail { max-width: 800px; margin: 0 auto; padding: 40px 20px; }
.article-detail h1 { font-size: 32px; margin-bottom: 16px; line-height: 1.4; }
.article-detail .meta { color: var(--text-light); font-size: 14px; margin-bottom: 28px; padding-bottom: 20px; border-bottom: 1px solid var(--border); }
.article-detail .content { font-size: 16px; line-height: 1.9; }
.article-detail .content h2 { font-size: 24px; margin: 32px 0 16px; }
.article-detail .content h3 { font-size: 20px; margin: 24px 0 12px; }
.article-detail .content p { margin-bottom: 16px; }
.article-detail .content ul, .article-detail .content ol { margin: 16px 0; padding-left: 24px; }
.article-detail .content li { margin-bottom: 8px; }
.article-detail .content img { max-width: 100%; border-radius: 8px; }

/* 分页 */
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 40px; }
.pagination a, .pagination span {
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
}
.pagination a:hover { background: var(--bg-gray); text-decoration: none; }
.pagination .active { background: var(--primary); color: #fff; border-color: var(--primary); }
.products-count { text-align: center; margin-top: 24px; color: var(--text-light); font-size: 14px; }

/* 页脚：深色高级质感 */
.footer {
  position: relative;
  overflow: hidden;
  margin-top: 60px;
  background:
    radial-gradient(760px 340px at 84% 0%, rgba(59, 130, 246, 0.16), transparent 62%),
    radial-gradient(560px 300px at 6% 110%, rgba(99, 102, 241, 0.13), transparent 65%),
    linear-gradient(165deg, #0b1224 0%, #111d38 58%, #0d1730 100%);
  color: #94a3b8;
  border-top: 2px solid transparent;
  border-image: linear-gradient(90deg, transparent, #3b82f6, #6366f1, transparent) 1;
}
.footer-bg {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 30%, transparent 82%);
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 30%, transparent 82%);
}
.footer-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.7fr 1fr;
  gap: 32px;
  padding: 26px 0 20px;
}

/* 品牌列 */
.footer-brand { min-width: 0; }
.footer-logo {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 15.5px; font-weight: 800; letter-spacing: -0.01em; color: #f1f5f9;
  transition: opacity 0.2s ease;
}
.footer-logo:hover { opacity: 0.85; text-decoration: none; }
.footer-desc {
  font-size: 12.5px; line-height: 1.6; color: rgba(148, 163, 184, 0.85);
  margin: 6px 0 0; max-width: 340px;
}

/* 链接列 / 联系列 */
.footer-title {
  position: relative;
  font-size: 13px; font-weight: 700; color: #f1f5f9;
  margin: 0 0 10px 0; padding-left: 12px;
}
.footer-title::before {
  content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 3px; height: 12px; border-radius: 3px;
  background: linear-gradient(180deg, #60a5fa, #4f46e5);
}

.footer-contact { display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }
.footer-contact-item {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 5px 12px; border-radius: 9px;
  font-size: 12.5px; color: rgba(203, 213, 225, 0.92);
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(148, 163, 184, 0.16);
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  max-width: 100%;
}
.footer-contact-item svg { width: 13px; height: 13px; flex: none; color: #60a5fa; }
.footer-contact-item:hover {
  transform: translateY(-2px); text-decoration: none; color: #fff;
  background: rgba(59, 130, 246, 0.14);
  border-color: rgba(147, 197, 253, 0.4);
}

/* 底栏 */
.footer-bottom {
  position: relative;
  border-top: 1px solid rgba(148, 163, 184, 0.14);
  background: rgba(2, 6, 23, 0.35);
}
.footer-bottom-inner {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 8px;
  padding: 12px 0;
  font-size: 12px; color: rgba(148, 163, 184, 0.75);
}

/* 页脚收录查询链接（谷歌 / 百度 site: 查询） */
.footer-seo { display: inline-flex; align-items: center; gap: 8px; }
.footer-seo a { color: rgba(148, 163, 184, 0.85); text-decoration: none; transition: color 0.2s; }
.footer-seo a:hover { color: #e2e8f0; text-decoration: underline; }
.footer-seo-dot { color: rgba(148, 163, 184, 0.4); }

/* 响应式 */
@media (max-width: 960px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; padding: 22px 0 18px; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
  .footer { margin-top: 40px; }
  .footer-grid { grid-template-columns: 1fr; gap: 14px; padding: 18px 0 14px; text-align: center; }
  .footer-logo { justify-content: center; }
  .footer-desc { margin: 5px auto 0; }
  .footer-title { padding-left: 0; margin-bottom: 8px; }
  .footer-title::before { display: none; }
  .footer-contact { align-items: center; gap: 7px; }
  .footer-bottom-inner { justify-content: center; text-align: center; padding: 10px 0; font-size: 11.5px; }
}

/* 面包屑导航（利于爬虫顺着内链抓取） */
.crumb { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; font-size: 13px; color: #64748b; margin-bottom: 14px; }
.crumb a { color: #64748b; text-decoration: none; transition: color 0.2s; }
.crumb a:hover { color: var(--primary); text-decoration: none; }
.crumb span { color: #cbd5e1; }
.crumb em { font-style: normal; color: #334155; font-weight: 600; }

/* 产品详情页 */
.back-link { color: #6b7280; text-decoration: none; font-size: 14px; display: inline-block; margin-bottom: 16px; }
.back-link:hover { color: var(--primary); }
.pd-card {
  background: #fff;
  border: 1px solid rgba(37, 99, 235, 0.1);
  border-radius: 16px;
  padding: 26px;
  margin-bottom: 16px;
  box-shadow: 0 12px 28px -18px rgba(30, 58, 138, 0.18), 0 1px 3px rgba(15, 23, 42, 0.03);
}
.pd-card-left { float: left; width: 200px; height: 140px; margin-right: 28px; background: #eff6ff; border-radius: 10px; display: flex; align-items: center; justify-content: center; }
.pd-cover { width: 100%; height: 100%; object-fit: contain; border-radius: 10px; }
.pd-cover-placeholder { font-size: 72px; }
.pd-card-right { overflow: hidden; min-height: 140px; }
.pd-name { font-size: 26px; font-weight: 700; margin: 0 0 8px 0; color: #111827; }
.pd-desc { color: #6b7280; font-size: 15px; line-height: 1.6; margin: 0 0 16px 0; }
.pd-actions { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.pd-download-count { color: #6b7280; font-size: 14px; }
.pd-section-title {
  position: relative;
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 18px 0;
  padding: 0 0 14px 14px;
  border-bottom: 1px solid rgba(37, 99, 235, 0.1);
  color: #0f172a;
}
.pd-section-title::before {
  content: "";
  position: absolute;
  left: 0; top: 3px; bottom: 17px;
  width: 4px;
  border-radius: 3px;
  background: linear-gradient(180deg, #3b82f6, #2563eb);
}
.pd-gallery { display: flex; flex-direction: column; gap: 14px; }
.pd-gallery-badge {
  display: inline-block; margin-left: 10px; padding: 2px 10px; border-radius: 999px;
  font-size: 12px; font-weight: 600; color: #1d4ed8; background: #eff6ff; vertical-align: middle;
}
.pd-gallery-stage {
  position: relative; overflow: hidden;
  border: 1px solid #e2e8f0; border-radius: 14px; background: #f8fafc;
  display: flex; align-items: center; justify-content: center;
  min-height: 200px; padding: 10px;
}
.pd-gallery-main-img {
  display: block; max-width: 100%; max-height: 460px;
  object-fit: contain; border-radius: 8px;
  transition: opacity 0.22s ease;
}
.pd-gallery-main-img.fading { opacity: 0.25; }
.pd-gallery-nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 42px; height: 42px; border: none; border-radius: 50%; padding: 0;
  background: rgba(15, 23, 42, 0.4); color: #fff; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  opacity: 0; transition: opacity 0.2s ease, background 0.2s ease, transform 0.2s ease;
}
.pd-gallery-nav svg { width: 20px; height: 20px; }
.pd-gallery-prev { left: 14px; }
.pd-gallery-next { right: 14px; }
.pd-gallery-stage:hover .pd-gallery-nav { opacity: 1; }
.pd-gallery-prev:hover { background: rgba(37, 99, 235, 0.85); transform: translateY(-50%) scale(1.06); }
.pd-gallery-next:hover { background: rgba(37, 99, 235, 0.85); transform: translateY(-50%) scale(1.06); }
.pd-gallery-counter {
  position: absolute; left: 14px; bottom: 14px;
  padding: 4px 12px; border-radius: 999px;
  font-size: 12.5px; font-weight: 600; color: #fff;
  background: rgba(15, 23, 42, 0.55); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
}
.pd-gallery-hint {
  position: absolute; right: 14px; bottom: 14px;
  padding: 4px 12px; border-radius: 999px;
  font-size: 12.5px; color: rgba(255, 255, 255, 0.92);
  background: rgba(37, 99, 235, 0.55); backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  pointer-events: none;
}
.pd-gallery-zoom {
  position: absolute; top: 12px; right: 12px;
  width: 36px; height: 36px; border: none; border-radius: 50%; padding: 0;
  background: rgba(255, 255, 255, 0.86); color: #334155; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 12px -4px rgba(15, 23, 42, 0.3);
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}
.pd-gallery-zoom svg { width: 17px; height: 17px; }
.pd-gallery-zoom:hover { background: #fff; color: #2563eb; transform: scale(1.06); }
.pd-gallery-thumbs {
  display: flex; gap: 10px; overflow-x: auto; padding: 4px 2px 6px;
  scrollbar-width: thin;
}
.pd-gallery-thumb {
  flex: 0 0 auto; padding: 0; border: 2px solid transparent; border-radius: 9px;
  background: #f1f5f9; cursor: pointer; overflow: hidden;
  transition: border-color 0.2s ease, transform 0.2s ease, opacity 0.2s ease;
  opacity: 0.62;
}
.pd-gallery-thumb img { display: block; width: 96px; height: 62px; object-fit: cover; border-radius: 7px; }
.pd-gallery-thumb:hover { opacity: 1; transform: translateY(-2px); }
.pd-gallery-thumb.active { border-color: #2563eb; opacity: 1; }
@media (max-width: 640px) {
  .pd-gallery-stage { min-height: 170px; }
  .pd-gallery-main-img { max-height: 300px; }
  .pd-gallery-nav { opacity: 1; width: 36px; height: 36px; }
  .pd-gallery-nav svg { width: 17px; height: 17px; }
  .pd-gallery-thumb img { width: 76px; height: 50px; }
  .pd-gallery-hint { display: none; }
}
.pd-feature-list { padding-left: 20px; margin: 0; }
.pd-feature-list li { margin-bottom: 10px; line-height: 1.7; color: #374151; }
.pd-download-list { display: flex; flex-direction: column; gap: 10px; }
.pd-download-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  text-decoration: none;
  color: #111827;
  transition: background 0.15s;
}
.pd-download-item:hover { background: #f0f9ff; border-color: #bae6fd; text-decoration: none; }
.pd-download-icon { font-size: 22px; }
.pd-download-name { flex: 1; font-weight: 500; }
.pd-download-arrow { color: #2563eb; font-weight: 700; }
.pd-empty { text-align: center; color: #6b7280; padding: 36px 0; font-size: 14px; }
.pd-intro p { line-height: 1.9; color: #374151; margin: 0 0 14px 0; font-size: 15px; }
.pd-intro p:last-child { margin-bottom: 0; }
.pd-sub-title { font-size: 15px; font-weight: 600; margin: 20px 0 12px 0; color: #111827; }

/* ========== 软件信息面板（精致 UI） ========== */
.pd-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(640px 320px at 115% -30%, rgba(37, 99, 235, 0.1), transparent 62%),
    radial-gradient(420px 280px at -8% 125%, rgba(99, 102, 241, 0.09), transparent 60%),
    linear-gradient(135deg, #ffffff 0%, #f7faff 55%, #eef4ff 100%);
  border: 1px solid rgba(37, 99, 235, 0.12);
  border-radius: 20px;
  padding: 30px;
  margin-bottom: 8px;
  box-shadow: 0 24px 48px -24px rgba(30, 58, 138, 0.22), 0 2px 6px rgba(15, 23, 42, 0.04);
}
/* 按钮双份：桌面端在标题/价格下方，手机端在统计条下方 */
.pd-btn-row.pd-btn-row-mobile { display: none; }
.pd-hero::before {
  content: "";
  position: absolute;
  top: 0; left: 24px; right: 24px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.9), transparent);
}
.pd-hero-top { display: flex; align-items: center; gap: 32px; }
.pd-hero-cover {
  flex: 0 0 236px;
  height: 236px;
  background: linear-gradient(145deg, #eef4ff 0%, #dbe7ff 100%);
  border: 1px solid rgba(37, 99, 235, 0.14);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.9), 0 16px 32px -16px rgba(30, 58, 138, 0.35);
  transition: transform 0.25s ease;
}
.pd-hero-cover:hover { transform: translateY(-3px); }
.pd-hero-cover img { width: 100%; height: 100%; object-fit: contain; }
.pd-hero-cover-ph { font-size: 76px; filter: drop-shadow(0 8px 16px rgba(30, 58, 138, 0.18)); }
.pd-hero-info { flex: 1; display: flex; flex-direction: column; justify-content: center; gap: 26px; min-width: 0; }
.pd-hero-name {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: #0f172a;
  margin: 0;
}
@supports (-webkit-background-clip: text) {
  .pd-hero-name {
    background: linear-gradient(120deg, #0f172a 0%, #1e3a8a 55%, #2563eb 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
  }
}
.pd-btn-row { display: flex; gap: 12px; flex-wrap: wrap; }
.pd-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12.5px 30px;
  border-radius: 12px;
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: none;
  cursor: pointer;
  text-align: center;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}
.pd-btn svg { width: 16px; height: 16px; flex-shrink: 0; }
.pd-btn:hover { transform: translateY(-2px); text-decoration: none; }
.pd-btn:active { transform: translateY(0) scale(0.97); }
/* 主按钮：红色渐变（下载站惯例色） */
.pd-btn-download {
  color: #fff;
  background: linear-gradient(135deg, #f87171 0%, #ef4444 55%, #dc2626 100%);
  box-shadow: 0 12px 26px -10px rgba(220, 38, 38, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}
.pd-btn-download:hover { color: #fff; box-shadow: 0 16px 32px -10px rgba(220, 38, 38, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.25); filter: brightness(1.05); }
/* 次按钮：橙色渐变（充值/金额感） */
.pd-btn-card {
  color: #fff;
  background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 55%, #d97706 100%);
  box-shadow: 0 12px 26px -10px rgba(217, 119, 6, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.3);
}
.pd-btn-card:hover { color: #fff; box-shadow: 0 16px 32px -10px rgba(217, 119, 6, 0.65), inset 0 1px 0 rgba(255, 255, 255, 0.3); filter: brightness(1.05); }
/* 第三按钮：Telegram 天蓝渐变 */
.pd-btn-tg {
  color: #fff;
  background: linear-gradient(135deg, #38bdf8 0%, #0ea5e9 55%, #0284c7 100%);
  box-shadow: 0 12px 26px -10px rgba(2, 132, 199, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}
.pd-btn-tg:hover { color: #fff; box-shadow: 0 16px 32px -10px rgba(2, 132, 199, 0.65), inset 0 1px 0 rgba(255, 255, 255, 0.25); filter: brightness(1.05); }

/* 统计条 */
.pd-stats {
  margin-top: 26px;
  padding-top: 22px;
  border-top: 1px solid rgba(37, 99, 235, 0.1);
  display: grid;
  grid-template-columns: 0.9fr 1fr 1.1fr 1.5fr;
  gap: 20px;
}
.pd-stat { display: flex; flex-direction: column; gap: 6px; position: relative; min-width: 0; }
.pd-stat + .pd-stat::before {
  content: "";
  position: absolute;
  left: -10px; top: 4px; bottom: 4px;
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(37, 99, 235, 0.16), transparent);
}
.pd-stat-label { font-size: 11.5px; color: #94a3b8; letter-spacing: 0.1em; }
.pd-stat-value { font-size: 17px; font-weight: 700; color: #0f172a; line-height: 1.4; }
.pd-stars {
  font-size: 16px; letter-spacing: 3px; line-height: 1.5;
  color: #f59e0b;
  text-shadow: 0 1px 2px rgba(245, 158, 11, 0.18);
}
.pd-stars-dim { color: #d3dce8; opacity: 1; text-shadow: none; }
.pd-stat-date { font-size: 14px; font-weight: 600; color: #334155; white-space: nowrap; }
.pd-divider { border: none; border-top: 1px solid rgba(37, 99, 235, 0.1); margin: 26px 0; }

/* 收费标准 / 免费试用：浅色小卡（位于标题下方、按钮上方） */
.pd-pricing {
  margin-top: 16px;
  display: flex; align-items: stretch;
  background:
    radial-gradient(520px 200px at 92% -40%, rgba(59, 130, 246, 0.14), transparent 60%),
    radial-gradient(420px 220px at 4% 140%, rgba(99, 102, 241, 0.12), transparent 60%),
    linear-gradient(135deg, #f5f9ff 0%, #eef3fe 55%, #f6f4ff 100%);
  border: 1px solid rgba(37, 99, 235, 0.16);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 12px 28px -20px rgba(37, 99, 235, 0.28);
}
.pd-pricing-item {
  flex: 1; min-width: 0;
  display: flex; align-items: center; justify-content: center;
  gap: 12px;
  padding: 14px 12px;
}
.pd-pricing-icon {
  flex: none;
  width: 36px; height: 36px; border-radius: 11px;
  display: flex; align-items: center; justify-content: center;
  color: #2563eb;
  background: rgba(37, 99, 235, 0.1);
  border: 1px solid rgba(37, 99, 235, 0.2);
}
.pd-pricing-icon svg { width: 19px; height: 19px; }
.pd-pricing-icon-trial { color: #6366f1; background: rgba(99, 102, 241, 0.1); border-color: rgba(99, 102, 241, 0.22); }
.pd-pricing-text { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.pd-pricing-label { font-size: 12px; color: #64748b; letter-spacing: 0.12em; }
.pd-pricing-value { font-size: 18px; font-weight: 800; color: #1e293b; line-height: 1.3; white-space: nowrap; }
.pd-pricing-price {
  background: linear-gradient(100deg, #f59e0b, #ea580c);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.pd-pricing-none { color: #0f172a; font-weight: 700; }
.pd-pricing-trial {
  background: linear-gradient(100deg, #ef4444, #dc2626);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.pd-pricing-divider { width: 1px; background: linear-gradient(180deg, transparent, rgba(37, 99, 235, 0.22), transparent); }
@media (max-width: 640px) {
  .pd-pricing { gap: 0; }
  .pd-pricing-item { gap: 8px; padding: 10px 6px; }
  .pd-pricing-icon { width: 28px; height: 28px; border-radius: 8px; }
  .pd-pricing-icon svg { width: 14px; height: 14px; }
  .pd-pricing-text { gap: 2px; }
  .pd-pricing-label { font-size: 9.5px; letter-spacing: 0.06em; }
  .pd-pricing-value { font-size: 15px; }
}

/* ========== 图片灯箱 ========== */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.82);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}
.lightbox.show { opacity: 1; visibility: visible; }
.lightbox-img {
  max-width: min(1100px, 92vw);
  max-height: 88vh;
  border-radius: 12px;
  box-shadow: 0 40px 80px -20px rgba(0, 0, 0, 0.55);
  transform: scale(0.96);
  transition: transform 0.25s ease;
  cursor: zoom-out;
}
.lightbox.show .lightbox-img { transform: scale(1); }
.lightbox-nav {
  flex: 0 0 auto;
  width: 48px; height: 48px; border: none; border-radius: 50%; padding: 0;
  background: rgba(255, 255, 255, 0.14); color: #fff; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background 0.2s ease, transform 0.2s ease;
}
.lightbox-nav svg { width: 24px; height: 24px; }
.lightbox-nav:hover { background: rgba(255, 255, 255, 0.3); transform: scale(1.08); }
.lightbox-prev { margin-right: 18px; }
.lightbox-next { margin-left: 18px; }
.lightbox-counter {
  position: absolute; left: 50%; bottom: 22px; transform: translateX(-50%);
  padding: 5px 16px; border-radius: 999px;
  font-size: 13.5px; font-weight: 600; color: #fff; background: rgba(15, 23, 42, 0.6);
}
@media (max-width: 640px) {
  .lightbox { padding: 20px 10px; }
  .lightbox-nav { width: 40px; height: 40px; }
  .lightbox-nav svg { width: 20px; height: 20px; }
  .lightbox-prev { margin-right: 6px; }
  .lightbox-next { margin-left: 6px; }
}
.lightbox-close {
  position: absolute;
  top: 20px;
  right: 24px;
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, transform 0.2s ease;
}
.lightbox-close:hover { background: rgba(255, 255, 255, 0.28); transform: rotate(90deg); }

@media (max-width: 640px) {
  .pd-hero { padding: 14px 12px; border-radius: 14px; }
  .pd-btn-row.pd-btn-row-desktop { display: none; }
  .pd-btn-row.pd-btn-row-mobile { display: flex; margin-top: 12px; }
  .pd-hero-top { flex-direction: column; gap: 12px; align-items: stretch; }
  .pd-hero-cover { flex: none; width: 100%; height: 150px; }
  .pd-hero-name { font-size: 20px; text-align: center; }
  .pd-hero-info { gap: 12px; }
  .pd-pricing { margin-top: 0; }
  .pd-btn-row { gap: 6px; }
  .pd-btn { flex: 1; padding: 10px 4px; font-size: 11.5px; gap: 4px; border-radius: 9px; white-space: nowrap; }
  .pd-btn svg { width: 12px; height: 12px; }
  .pd-btn-tg { flex: 1.2; }
  .pd-stats { grid-template-columns: 1fr 1fr; gap: 7px 12px; margin-top: 0; padding-top: 10px; }
  .pd-stat { gap: 3px; }
  .pd-stat-label { font-size: 10.5px; }
  .pd-stat-value { font-size: 14px; }
  .pd-stars { font-size: 13px; }
  .pd-stat:nth-child(3)::before { display: none; }
  .pd-stat-date { white-space: normal; font-size: 12.5px; }
}
.pd-video-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; }
.pd-video-item { background: #f9fafb; border: 1px solid #e5e7eb; border-radius: 8px; overflow: hidden; }
.pd-video-item video, .pd-video-item iframe { width: 100%; height: 200px; display: block; border: none; }
.pd-video-title { padding: 10px 12px; margin: 0; font-size: 14px; color: #374151; font-weight: 500; }
@media (max-width: 640px) {
  .pd-card-left { float: none; width: 100%; height: 160px; margin: 0 0 16px 0; }
}

/* 文章内产品推广卡片（紧凑版） */
.product-promo-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: linear-gradient(135deg, #eff6ff, #dbeafe);
  border: 1px solid #bfdbfe;
  border-radius: 14px;
  padding: 14px 16px;
  margin: 20px 0;
  text-decoration: none;
  color: var(--text);
  position: relative;
  overflow: hidden;
  transition: box-shadow 0.2s, transform 0.2s, border-color 0.2s;
}
.product-promo-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, #2563eb, #6366f1);
  border-radius: 4px 0 0 4px;
}
.product-promo-card:hover {
  box-shadow: 0 10px 26px rgba(37, 99, 235, 0.18);
  transform: translateY(-2px);
  border-color: #93c5fd;
  text-decoration: none;
}
/* 图片外框：白底 + 蓝色描边 */
.promo-media {
  flex-shrink: 0;
  padding: 4px;
  background: #fff;
  border: 1px solid #93c5fd;
  border-radius: 11px;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.1);
}
.promo-img {
  width: 116px;
  height: 84px;
  object-fit: cover;
  border-radius: 8px;
  display: block;
  transition: transform 0.3s;
}
.product-promo-card:hover .promo-img { transform: scale(1.05); }
.promo-icon {
  width: 116px;
  height: 84px;
  background: #f8fafc;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 44px;
}
.promo-info { flex: 1; min-width: 0; }
.promo-info h3 { font-size: 17px; margin: 0 0 6px; color: #1e293b; }
/* 后台数据 chips：软件大小 / 下载次数 */
.promo-meta { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 6px; }
.promo-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #fff;
  border: 1px solid #bfdbfe;
  color: #1e40af;
  font-size: 11px;
  line-height: 1;
  padding: 5px 10px;
  border-radius: 999px;
}
.promo-chip svg { width: 12px; height: 12px; flex-shrink: 0; }
.promo-chip b { font-weight: 700; }
.promo-info p {
  font-size: 13px;
  color: #475569;
  margin: 0 0 10px;
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.promo-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 16px;
  background: linear-gradient(135deg, #2563eb, #3b82f6);
  color: #fff !important;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  box-shadow: 0 3px 10px rgba(37, 99, 235, 0.3);
}
.promo-btn svg { width: 15px; height: 15px; transition: transform 0.2s; }
.product-promo-card:hover .promo-btn { background: linear-gradient(135deg, #1d4ed8, #2563eb); box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4); }
.product-promo-card:hover .promo-btn svg { transform: translateX(3px); }
/* 手机端：紧凑横排，不浪费位置 */
@media (max-width: 640px) {
  .product-promo-card { flex-direction: row; gap: 10px; padding: 10px 12px; margin: 16px 0; border-radius: 12px; }
  .product-promo-card::before { width: 3px; }
  .promo-media { padding: 3px; border-radius: 9px; }
  .promo-img { width: 92px; height: 68px; border-radius: 7px; }
  .promo-icon { width: 92px; height: 68px; font-size: 32px; border-radius: 7px; }
  .promo-info h3 { font-size: 15px; margin: 0 0 5px; }
  .promo-meta { gap: 5px; margin: 0 0 5px; }
  .promo-chip { font-size: 10px; padding: 4px 8px; }
  .promo-info p { display: none; }
  .promo-btn { padding: 6px 12px; font-size: 12px; gap: 4px; }
  .promo-btn svg { width: 13px; height: 13px; }
}

/* 响应式 */
@media (max-width: 768px) {
  .hero h1 { font-size: 28px; }
  .nav { gap: 16px; }
  .nav a { font-size: 14px; }
  .section { padding: 40px 0; }
}

/* ============================================================
   首页高级 UI（软件官网风格）
   ============================================================ */

/* ---- 头部：玻璃质感 + 渐变标识 ---- */
.header {
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: saturate(1.6) blur(14px);
  -webkit-backdrop-filter: saturate(1.6) blur(14px);
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
  transition: box-shadow 0.25s ease, background 0.25s ease;
}
.header.scrolled { box-shadow: 0 8px 24px -12px rgba(15, 23, 42, 0.18); }
.logo { display: inline-flex; align-items: center; gap: 11px; font-size: 19px; font-weight: 800; letter-spacing: -0.01em; }
.logo-mark {
  width: 26px; height: 26px; border-radius: 8px;
  background: linear-gradient(135deg, #3b82f6 0%, #2563eb 55%, #4f46e5 100%);
  box-shadow: 0 6px 14px -4px rgba(37, 99, 235, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.35);
  position: relative;
}
.logo-mark::after {
  content: ""; position: absolute; inset: 7px; border-radius: 3px;
  background: rgba(255, 255, 255, 0.92);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 70% 100%, 0 100%);
}
/* 后台上传的品牌 Logo 图（顶栏/页脚通用，尺寸对齐默认 logo-mark） */
.logo-img {
  width: 26px; height: 26px; border-radius: 8px;
  object-fit: contain; flex: none; display: block;
}
.header-right { display: flex; align-items: center; gap: 12px; }

/* ---- 现代导航：胶囊容器 + 滑动指示器 + 线性图标 ---- */
.nav-links {
  position: relative;
  display: flex; align-items: center; gap: 2px;
  background: rgba(241, 245, 249, 0.75);
  border: 1px solid rgba(15, 23, 42, 0.05);
  border-radius: 999px;
  padding: 5px;
}
.nav-link {
  position: relative; z-index: 1;
  display: inline-flex; align-items: center; gap: 7px;
  padding: 8px 17px; border-radius: 999px;
  font-size: 14.5px; font-weight: 500; color: #475569;
  transition: color 0.25s ease;
  white-space: nowrap;
}
.nav-link svg { width: 16px; height: 16px; flex-shrink: 0; }
.nav-link:hover { color: #1d4ed8; text-decoration: none; }
.nav-link.active { color: #1d4ed8; font-weight: 600; }
.nav-indicator {
  position: absolute; z-index: 0; top: 5px; bottom: 5px; left: 0; width: 0;
  border-radius: 999px;
  background: #ffffff;
  box-shadow: 0 4px 12px -4px rgba(30, 58, 138, 0.2), 0 1px 2px rgba(15, 23, 42, 0.06);
  opacity: 0;
  transition: transform 0.38s cubic-bezier(0.34, 1.4, 0.64, 1), width 0.38s cubic-bezier(0.34, 1.4, 0.64, 1), opacity 0.25s ease;
}

/* ---- 移动端：汉堡按钮 + 玻璃抽屉 ---- */
.nav-toggle {
  display: none; flex-direction: column; justify-content: center; align-items: center; gap: 5px;
  width: 42px; height: 42px; border: none; border-radius: 12px; background: none; cursor: pointer; padding: 0;
}
.nav-toggle span { display: block; width: 22px; height: 2px; border-radius: 2px; background: #334155; transition: transform 0.3s ease, opacity 0.25s ease; }
.nav-toggle:hover { background: rgba(241, 245, 249, 0.9); }
.header.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.header.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
.header.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav-drawer {
  display: none;
  position: absolute; top: 100%; left: 0; right: 0; z-index: 99;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: 0 28px 36px -22px rgba(15, 23, 42, 0.28);
  padding: 12px 20px 20px;
  opacity: 0; transform: translateY(-10px); pointer-events: none;
  transition: opacity 0.28s ease, transform 0.28s ease;
}
.header.nav-open .nav-drawer { opacity: 1; transform: none; pointer-events: auto; }
.drawer-link {
  display: flex; align-items: center; gap: 13px;
  padding: 13px 15px; border-radius: 13px;
  color: #334155; font-size: 15px; font-weight: 500;
}
.drawer-link svg { width: 19px; height: 19px; color: #64748b; }
.drawer-link:hover { background: #f1f5f9; text-decoration: none; color: #1d4ed8; }
.drawer-link:hover svg { color: #2563eb; }
.drawer-link.active { background: #eff6ff; color: #1d4ed8; font-weight: 600; }
.drawer-link.active svg { color: #2563eb; }

/* ---- Hero：深色高级质感 ---- */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(900px 480px at 88% -10%, rgba(59, 130, 246, 0.32), transparent 60%),
    radial-gradient(700px 420px at 6% 110%, rgba(99, 102, 241, 0.26), transparent 62%),
    linear-gradient(160deg, #0b1224 0%, #111d38 52%, #0d1730 100%);
  color: #e8eefc;
  text-align: center;
  padding: 108px 0 96px;
}
.hero-bg {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.07) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(ellipse 78% 62% at 50% 42%, #000 25%, transparent 78%);
  mask-image: radial-gradient(ellipse 78% 62% at 50% 42%, #000 25%, transparent 78%);
}
.hero-bg::before, .hero-bg::after {
  content: ""; position: absolute; border-radius: 50%; filter: blur(70px);
}
.hero-bg::before { width: 420px; height: 420px; top: -140px; right: 6%; background: rgba(56, 189, 248, 0.16); }
.hero-bg::after { width: 360px; height: 360px; bottom: -160px; left: 4%; background: rgba(129, 140, 248, 0.16); }
.hero-inner { position: relative; z-index: 1; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 8px 18px; border-radius: 999px; font-size: 13px; letter-spacing: 0.08em;
  color: #bfdbfe; background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(147, 197, 253, 0.28);
  margin-bottom: 30px;
}
.hero-badge-dot { width: 7px; height: 7px; border-radius: 50%; background: #38bdf8; box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.18); animation: heroPulse 2.2s ease-in-out infinite; }
@keyframes heroPulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.45; } }
.hero h1 {
  font-size: 52px; font-weight: 800; line-height: 1.22; letter-spacing: -0.02em;
  color: #f8fafc; margin-bottom: 20px;
}
.hero-accent {
  background: linear-gradient(100deg, #60a5fa 0%, #38bdf8 45%, #a5b4fc 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero p {
  font-size: 17px; line-height: 1.85; color: rgba(226, 232, 240, 0.72);
  max-width: 620px; margin: 0 auto 38px;
}
.hero-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; margin-bottom: 64px; }
.btn-hero {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 38px; border-radius: 13px; font-size: 15px; font-weight: 600; letter-spacing: 0.02em;
  transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease, background 0.2s ease;
}
.btn-hero:hover { text-decoration: none; }
.btn-hero-primary {
  color: #fff; background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  box-shadow: 0 16px 34px -10px rgba(37, 99, 235, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}
.btn-hero-primary:hover { transform: translateY(-2px); filter: brightness(1.06); color: #fff; }
.btn-hero-ghost {
  color: #e2e8f0; background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.btn-hero-ghost:hover { transform: translateY(-2px); background: rgba(255, 255, 255, 0.12); color: #fff; }
.hero-stats { display: flex; justify-content: center; gap: 0; flex-wrap: wrap; }
.hero-stat { padding: 6px 52px; position: relative; }
.hero-stat + .hero-stat::before {
  content: ""; position: absolute; left: 0; top: 20%; bottom: 20%; width: 1px;
  background: linear-gradient(180deg, transparent, rgba(148, 163, 184, 0.35), transparent);
}
.hero-stat-num {
  font-size: 34px; font-weight: 800; letter-spacing: -0.01em; line-height: 1.2;
  background: linear-gradient(180deg, #ffffff 30%, #93c5fd 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-stat-label { font-size: 13px; letter-spacing: 0.14em; color: rgba(203, 213, 225, 0.6); margin-top: 6px; }

/* ---- 区块标题 ---- */
.section-head { text-align: center; margin-bottom: 44px; }
.section-gray { background: var(--bg-gray); }
.section-title { position: relative; display: inline-block; padding-bottom: 14px; }
.section-title::after {
  content: ""; position: absolute; left: 50%; bottom: 0; transform: translateX(-50%);
  width: 44px; height: 3px; border-radius: 3px;
  background: linear-gradient(90deg, #3b82f6, #4f46e5);
}
.section-more { text-align: center; margin-top: 44px; }
.btn-outline-lg { padding: 12px 34px; font-size: 15px; border-radius: 12px; }

/* ---- 软件卡片网格（首页核心产品 / 产品列表通用，一行 3 个） ---- */
.sw-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.sw-card {
  position: relative;
  display: flex; flex-direction: column; height: 100%;
  background: #fff; border: 1px solid rgba(15, 23, 42, 0.07); border-radius: 16px;
  overflow: hidden; text-decoration: none; color: var(--text);
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.sw-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; z-index: 2;
  background: linear-gradient(90deg, #3b82f6, #6366f1);
  opacity: 0; transform: scaleX(0.35); transform-origin: left;
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.sw-card:hover { transform: translateY(-6px); border-color: rgba(37, 99, 235, 0.25); box-shadow: 0 24px 40px -20px rgba(30, 58, 138, 0.25), 0 2px 6px rgba(15, 23, 42, 0.04); text-decoration: none; }
.sw-card:hover::before { opacity: 1; transform: scaleX(1); }
.sw-card-cover {
  height: 160px; flex-shrink: 0;
  background: linear-gradient(145deg, #eef4ff 0%, #dbe7ff 100%);
  display: flex; align-items: center; justify-content: center; overflow: hidden;
}
.sw-card-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.45s ease; }
.sw-card:hover .sw-card-cover img { transform: scale(1.06); }
.sw-card-cover-ph { font-size: 58px; filter: drop-shadow(0 8px 16px rgba(30, 58, 138, 0.18)); }
/* ---- 首页核心软件角标（按行：爆款推荐 / 精品 / 热门） ---- */
.sw-corner-tag {
  position: absolute; top: 12px; right: 0; z-index: 2;
  padding: 5px 10px 5px 12px;
  font-size: 12px; font-weight: 700; letter-spacing: 0.5px; line-height: 1.2;
  color: #fff; white-space: nowrap;
  border-radius: 999px 0 0 999px;
  background: linear-gradient(135deg, #f43f5e, #fb923c);
  box-shadow: 0 4px 12px rgba(244, 63, 94, 0.35);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.12);
  transition: transform 0.25s ease;
}
.sw-corner-tag-hot  { background: linear-gradient(135deg, #f43f5e, #fb923c); box-shadow: 0 4px 12px rgba(244, 63, 94, 0.35); }
.sw-corner-tag-fine { background: linear-gradient(135deg, #d97706, #fbbf24); box-shadow: 0 4px 12px rgba(217, 119, 6, 0.32); }
.sw-corner-tag-pop  { background: linear-gradient(135deg, #db2777, #f43f5e); box-shadow: 0 4px 12px rgba(219, 39, 119, 0.32); }
.sw-card:hover .sw-corner-tag { transform: scale(1.06); }
@media (max-width: 760px) {
  .sw-corner-tag { font-size: 11px; padding: 4px 8px 4px 10px; top: 10px; }
}
.sw-card-body { display: flex; flex-direction: column; gap: 10px; padding: 15px 16px 16px; flex: 1; min-width: 0; }
.sw-card-name { font-size: 16.5px; font-weight: 700; color: #0f172a; margin: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
/* 规格网格：一行两列（软件大小/下载次数/软件收费/免费试用） */
.sw-card-specs {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1px;
  background: #e6edf6; border: 1px solid #e6edf6;
  border-radius: 10px; overflow: hidden;
}
.sw-spec {
  background: #f8fafc; padding: 7px 11px 8px;
  display: flex; flex-direction: column; gap: 1px; min-width: 0;
}
.sw-spec-label { font-size: 10.5px; color: #94a3b8; letter-spacing: 0.02em; }
.sw-spec-value {
  font-size: 12.5px; font-weight: 700; color: #1e293b; line-height: 1.4;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.sw-spec-price .sw-spec-value { color: #c2410c; }
.sw-spec-trial .sw-spec-value { color: #dc2626; }
.sw-card-desc { font-size: 13px; line-height: 1.7; color: #64748b; margin: 0; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.sw-card-cta {
  margin-top: auto;
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9.5px 0; border-radius: 10px;
  font-size: 13.5px; font-weight: 600; color: #fff;
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  box-shadow: 0 8px 18px -8px rgba(37, 99, 235, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.22);
  transition: background 0.2s ease, box-shadow 0.2s ease, gap 0.2s ease, transform 0.15s ease;
}
.sw-card-cta svg { width: 14px; height: 14px; transition: transform 0.2s ease; }
.sw-card:hover .sw-card-cta { background: linear-gradient(135deg, #2563eb, #1d4ed8); box-shadow: 0 12px 24px -10px rgba(37, 99, 235, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.22); }
.sw-card:hover .sw-card-cta svg { transform: translateX(3px); }
.sw-card-cta:active { transform: scale(0.96); box-shadow: 0 4px 10px -6px rgba(37, 99, 235, 0.6); }
@media (max-width: 1020px) { .sw-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) {
  .sw-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
  .sw-card-cover { height: 130px; }
  .sw-card-body { padding: 13px 13px 13px; gap: 8px; }
  .sw-card-name { font-size: 15px; }
  .sw-spec { padding: 5px 9px 6px; }
  .sw-spec-label { font-size: 10px; }
  .sw-spec-value { font-size: 11.5px; }
  .sw-card-cta { padding: 8.5px 0; font-size: 12.5px; }
}
@media (max-width: 440px) { .sw-grid { grid-template-columns: 1fr; } }
/* 价格/试用允许换行，避免「213 USDT · 包更新」被截断 */
.sw-spec-price .sw-spec-value,
.sw-spec-trial .sw-spec-value { white-space: normal; overflow-wrap: anywhere; line-height: 1.35; }

/* ---- 能力卡片 ---- */
.features-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 22px; }
.feature-card {
  position: relative; overflow: hidden;
  background: #fff; border: 1px solid rgba(15, 23, 42, 0.06);
  border-radius: 18px; padding: 30px 26px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.feature-card::before {
  content: ""; position: absolute; top: 0; left: 22px; right: 22px; height: 3px; border-radius: 3px;
  background: linear-gradient(90deg, #3b82f6, #4f46e5);
  opacity: 0; transform: scaleX(0.4); transform-origin: left;
  transition: opacity 0.25s ease, transform 0.25s ease;
}
.feature-card:hover { transform: translateY(-6px); border-color: rgba(37, 99, 235, 0.22); box-shadow: 0 24px 40px -20px rgba(30, 58, 138, 0.22), 0 2px 6px rgba(15, 23, 42, 0.04); }
.feature-card:hover::before { opacity: 1; transform: scaleX(1); }
.feature-icon {
  width: 52px; height: 52px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center; margin-bottom: 18px;
}
.feature-icon svg { width: 26px; height: 26px; }
.feature-icon-blue { background: #eff6ff; color: #2563eb; border: 1px solid #bfdbfe; }
.feature-icon-green { background: #f0fdf4; color: #16a34a; border: 1px solid #bbf7d0; }
.feature-icon-purple { background: #f5f3ff; color: #7c3aed; border: 1px solid #ddd6fe; }
.feature-icon-orange { background: #fff7ed; color: #ea580c; border: 1px solid #fed7aa; }
.feature-card h3 { font-size: 17.5px; font-weight: 700; margin-bottom: 10px; color: #0f172a; }
.feature-card p { font-size: 14px; line-height: 1.8; color: #64748b; }

/* ---- 文章卡片（升级） ---- */
.article-card {
  position: relative; overflow: hidden;
  border: 1px solid rgba(15, 23, 42, 0.06); border-radius: 16px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
  padding: 24px 24px 20px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.article-card:hover { transform: translateY(-5px); border-color: rgba(37, 99, 235, 0.22); box-shadow: 0 22px 38px -20px rgba(30, 58, 138, 0.22), 0 2px 6px rgba(15, 23, 42, 0.04); }
.article-card-top { position: absolute; top: 0; left: 0; right: 0; height: 3.5px; background: linear-gradient(90deg, #3b82f6, #6366f1); }
.article-card h3 { font-size: 17px; font-weight: 700; }
.article-card .summary { line-height: 1.75; }
.article-date {
  display: inline-flex; align-items: center; gap: 6px;
  background: #f1f5f9; border: 1px solid #e2e8f0; color: #475569;
  padding: 3px 11px; border-radius: 999px; font-size: 12px; font-weight: 500;
}

/* ---- 滚动渐入 ---- */
/* 仅在 JS 可用时才隐藏初始状态，JS 失效时内容保持可见 */
html.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.65s cubic-bezier(0.22, 0.61, 0.36, 1), transform 0.65s cubic-bezier(0.22, 0.61, 0.36, 1); }
html.js .reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { html.js .reveal { opacity: 1; transform: none; transition: none; } }

/* ---- 响应式 ---- */
@media (max-width: 1020px) {
  .nav-link { padding: 8px 12px; font-size: 13.5px; }
  .nav-link svg { width: 15px; height: 15px; }
  .logo { font-size: 17px; max-width: 230px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
}
@media (max-width: 960px) {
  .features-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-drawer { display: block; }
  .hero { padding: 46px 0 42px; }
  .hero-badge { padding: 5px 13px; font-size: 11.5px; gap: 7px; margin-bottom: 16px; }
  .hero-badge-dot { width: 6px; height: 6px; box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.18); }
  .hero h1 { font-size: 28px; margin-bottom: 10px; }
  .hero p { font-size: 13.5px; line-height: 1.7; margin-bottom: 22px; }
  .hero-actions { flex-wrap: nowrap; gap: 10px; margin-bottom: 26px; }
  .btn-hero { width: auto; flex: 1; max-width: 200px; padding: 11px 18px; font-size: 13.5px; border-radius: 11px; }
  .hero-stats { flex-wrap: nowrap; }
  .hero-stat { padding: 3px 12px; }
  .hero-stat-num { font-size: 21px; }
  .hero-stat-label { font-size: 10.5px; letter-spacing: 0.06em; margin-top: 3px; }
}

/* ============================================================
   文章列表页 · 高级卡片设计
   ============================================================ */
.page-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(760px 420px at 84% -10%, rgba(59, 130, 246, 0.30), transparent 60%),
    radial-gradient(620px 380px at 8% 112%, rgba(99, 102, 241, 0.24), transparent 62%),
    linear-gradient(160deg, #0b1224 0%, #111d38 52%, #0d1730 100%);
  color: #e8eefc;
  text-align: center;
  padding: 88px 0 76px;
}
.page-hero-bg {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.07) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(ellipse 78% 62% at 50% 42%, #000 25%, transparent 78%);
  mask-image: radial-gradient(ellipse 78% 62% at 50% 42%, #000 25%, transparent 78%);
}
.page-hero-inner { position: relative; z-index: 1; }
.page-hero h1 {
  font-size: 44px; font-weight: 800; letter-spacing: -0.02em; line-height: 1.22;
  color: #f8fafc; margin: 22px 0 16px;
}
.page-hero p {
  font-size: 16px; color: rgba(226, 232, 240, 0.78);
  max-width: 640px; margin: 0 auto 28px; line-height: 1.8;
}
.page-hero-meta {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 18px; border-radius: 999px; font-size: 13.5px;
  color: #bfdbfe; background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(147, 197, 253, 0.28);
}
.page-hero-meta b { color: #7dd3fc; font-weight: 700; }

.articles-list {
  max-width: 880px; margin: 0 auto;
  display: flex; flex-direction: column; gap: 18px;
}
.article-row {
  position: relative; overflow: hidden;
  display: flex; align-items: center; gap: 22px;
  background: #fff;
  border: 1px solid rgba(15, 23, 42, 0.07);
  border-radius: 18px;
  padding: 26px 28px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
  text-decoration: none; color: inherit;
  transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
}
.article-row::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: linear-gradient(180deg, #3b82f6, #6366f1);
  opacity: 0; transition: opacity 0.28s ease;
}
.article-row:hover {
  transform: translateY(-4px);
  border-color: rgba(37, 99, 235, 0.25);
  box-shadow: 0 24px 40px -22px rgba(30, 58, 138, 0.25), 0 2px 6px rgba(15, 23, 42, 0.04);
  text-decoration: none;
}
.article-row:hover::before { opacity: 1; }
.article-row.is-pinned {
  background: linear-gradient(135deg, #f8faff 0%, #f1f5ff 100%);
  border-color: rgba(99, 102, 241, 0.22);
}

.article-row-body { flex: 1; min-width: 0; }
.article-row-tags { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.tag-pin {
  display: inline-flex; align-items: center;
  background: linear-gradient(135deg, #f97316, #ef4444);
  color: #fff; font-size: 11.5px; font-weight: 700;
  padding: 3px 11px; border-radius: 999px; letter-spacing: 0.02em;
  box-shadow: 0 4px 10px -4px rgba(239, 68, 68, 0.5);
}
.tag-cat {
  display: inline-flex; align-items: center;
  background: #eff6ff; border: 1px solid #bfdbfe; color: #1d4ed8;
  font-size: 11.5px; font-weight: 600;
  padding: 3px 11px; border-radius: 999px;
}
.article-row-title {
  font-size: 18.5px; font-weight: 700; line-height: 1.45;
  color: #0f172a; margin-bottom: 8px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  transition: color 0.2s ease;
}
.article-row:hover .article-row-title { color: var(--primary); }
.article-row-summary {
  font-size: 13.5px; color: #64748b; line-height: 1.75; margin-bottom: 14px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.article-row-meta { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.article-date {
  display: inline-flex; align-items: center; gap: 6px;
  background: #f1f5f9; border: 1px solid #e2e8f0; color: #475569;
  padding: 3px 11px; border-radius: 999px; font-size: 12px; font-weight: 500;
}
.kw-chip {
  font-size: 11.5px; color: #94a3b8;
  background: #f8fafc; border: 1px solid #eef2f7;
  padding: 3px 10px; border-radius: 999px;
}
.article-row-go {
  flex-shrink: 0;
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13.5px; font-weight: 600; color: #64748b;
  padding: 10px 18px; border-radius: 999px;
  border: 1px solid #e2e8f0; background: #fff;
  transition: background 0.28s ease, color 0.28s ease, border-color 0.28s ease, box-shadow 0.28s ease;
}
.article-row-go svg { transition: transform 0.28s ease; }
.article-row:hover .article-row-go {
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  border-color: transparent; color: #fff;
  box-shadow: 0 12px 22px -12px rgba(37, 99, 235, 0.55);
}
.article-row:hover .article-row-go svg { transform: translateX(4px); }

/* 空状态 */
.articles-empty {
  text-align: center; padding: 72px 20px;
  background: #fff; border: 1.5px dashed #cbd5e1; border-radius: 18px;
  color: #94a3b8; font-size: 14.5px;
}
.articles-empty-icon { font-size: 46px; margin-bottom: 14px; }

/* 分页（现代化） */
.pagination { display: flex; justify-content: center; align-items: center; gap: 8px; margin-top: 44px; flex-wrap: wrap; }
.pagination a, .pagination span {
  min-width: 40px; height: 40px; padding: 0 13px;
  display: inline-flex; align-items: center; justify-content: center; gap: 4px;
  border: 1px solid var(--border); border-radius: 12px;
  color: var(--text); font-size: 14px; font-weight: 500; background: #fff;
  transition: all 0.2s ease;
}
.pagination a:hover {
  border-color: var(--primary); color: var(--primary);
  background: var(--primary-soft); text-decoration: none;
  transform: translateY(-2px);
}
.pagination .active {
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  color: #fff; border-color: transparent;
  box-shadow: 0 10px 20px -10px rgba(37, 99, 235, 0.5);
}
/* 分页折叠省略号（无框无底色） */
.pagination .pg-dots { border: none; background: none; min-width: auto; padding: 0 2px; color: #94a3b8; }

@media (max-width: 640px) {
  .page-hero { padding: 40px 0 36px; }
  .page-hero h1 { font-size: 27px; margin: 14px 0 10px; }
  .page-hero p { font-size: 13.5px; margin-bottom: 18px; }
  .article-row { flex-direction: column; align-items: stretch; padding: 22px 20px; gap: 16px; }
  .article-row-go { width: 100%; justify-content: center; }
  .article-row-title { font-size: 16.5px; }
}

/* ============================================================
   关于页 · 公司简介 / 发展历程时间轴 / 数据见证 / 展望
   ============================================================ */
.page-hero-meta .dot {
  width: 4px; height: 4px; border-radius: 50%;
  background: rgba(147, 197, 253, 0.55);
}

/* ---- 公司简介 ---- */
.about-intro {
  display: grid; grid-template-columns: 1.15fr 1fr;
  gap: 48px; align-items: start;
  max-width: 1100px; margin: 0 auto;
}
.about-intro-text .section-title { display: block; text-align: left; }
.about-intro-text .section-title::after { left: 0; transform: none; }
.about-intro-text p { color: var(--text-light); font-size: 15px; line-height: 1.95; margin-bottom: 18px; }
.about-intro-text p b { color: var(--text); }
.about-intro-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 10px; }
.about-intro-actions .btn { border-radius: 13px; }

.about-values { display: flex; flex-direction: column; gap: 16px; }
.value-card {
  display: flex; gap: 16px; align-items: flex-start;
  background: #fff; border: 1px solid rgba(15, 23, 42, 0.07);
  border-radius: 16px; padding: 22px 24px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
  transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease;
}
.value-card:hover {
  transform: translateY(-3px);
  border-color: rgba(37, 99, 235, 0.25);
  box-shadow: 0 18px 30px -18px rgba(30, 58, 138, 0.22);
}
.value-icon {
  flex-shrink: 0; width: 44px; height: 44px; border-radius: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--ic-bg); color: var(--ic);
}
.value-icon svg { width: 22px; height: 22px; }
.value-card h3 { font-size: 16px; font-weight: 700; color: #0f172a; margin-bottom: 4px; }
.value-card p { font-size: 13.5px; color: #64748b; line-height: 1.75; }

/* ---- 发展历程时间轴 ---- */
.timeline { position: relative; max-width: 1000px; margin: 0 auto; }
.timeline::before {
  content: ""; position: absolute; left: 50%; top: 4px; bottom: 4px;
  width: 2px; transform: translateX(-50%);
  background: linear-gradient(180deg, rgba(147, 197, 253, 0) 0%, #93c5fd 5%, #93c5fd 95%, rgba(147, 197, 253, 0) 100%);
}
.tl-item { position: relative; width: 50%; padding: 0 52px 42px 0; }
.tl-item:nth-of-type(even) { margin-left: 50%; padding: 0 0 42px 52px; }
.tl-item::after {
  content: ""; position: absolute; top: 30px; right: -7px;
  width: 14px; height: 14px; border-radius: 50%;
  background: #fff; border: 3px solid var(--primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
  z-index: 1;
}
.tl-item:nth-of-type(even)::after { right: auto; left: -7px; }
.tl-card {
  position: relative;
  background: #fff; border: 1px solid rgba(15, 23, 42, 0.07);
  border-radius: 18px; padding: 26px 28px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.tl-item:hover .tl-card {
  transform: translateY(-4px);
  border-color: rgba(37, 99, 235, 0.25);
  box-shadow: 0 24px 40px -22px rgba(30, 58, 138, 0.25), 0 2px 6px rgba(15, 23, 42, 0.04);
}
.tl-head { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.tl-year {
  font-size: 27px; font-weight: 800; letter-spacing: -0.02em; line-height: 1;
  background: linear-gradient(120deg, var(--primary), var(--primary-2));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.tl-phase {
  font-size: 12px; font-weight: 600; color: #1d4ed8;
  background: #eff6ff; border: 1px solid #bfdbfe;
  padding: 2px 11px; border-radius: 999px;
}
.tl-phase-now {
  color: #c2410c; background: linear-gradient(135deg, #fff7ed, #ffedd5);
  border-color: #fed7aa;
  box-shadow: 0 4px 10px -6px rgba(234, 88, 12, 0.45);
}
.tl-title { font-size: 17.5px; font-weight: 700; color: #0f172a; line-height: 1.5; margin-bottom: 8px; }
.tl-desc { font-size: 13.5px; color: #64748b; line-height: 1.8; margin-bottom: 14px; }
.tl-highlights { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.tl-highlights li {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; color: #475569;
  background: #f8fafc; border: 1px solid #eef2f7;
  padding: 4px 11px; border-radius: 999px;
}
.tl-highlights li::before {
  content: ""; width: 5px; height: 5px; border-radius: 50%;
  background: var(--primary);
}
.tl-metrics {
  display: flex; gap: 28px; flex-wrap: wrap;
  border-top: 1px dashed #e2e8f0; padding-top: 14px;
}
.tl-metric b {
  display: block; font-size: 17px; font-weight: 800;
  color: var(--primary); letter-spacing: -0.01em; line-height: 1.35;
}
.tl-metric span { font-size: 12px; color: #94a3b8; }

/* ---- 数据见证 ---- */
.about-stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px;
  max-width: 1040px; margin: 0 auto;
}
.about-stat {
  background: #fff; border: 1px solid rgba(15, 23, 42, 0.07);
  border-radius: 18px; padding: 30px 24px 26px;
  text-align: center;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.about-stat:hover {
  transform: translateY(-4px);
  border-color: rgba(37, 99, 235, 0.25);
  box-shadow: 0 24px 40px -22px rgba(30, 58, 138, 0.22);
}
.about-stat-icon {
  width: 48px; height: 48px; border-radius: 14px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--ic-bg); color: var(--ic); margin-bottom: 14px;
}
.about-stat-icon svg { width: 24px; height: 24px; }
.about-stat-num {
  font-size: 32px; font-weight: 800; letter-spacing: -0.02em;
  color: #0f172a; line-height: 1.2; font-variant-numeric: tabular-nums;
}
.about-stat-num em { font-style: normal; font-size: 15px; font-weight: 700; color: var(--primary); margin-left: 2px; }
.about-stat-label { font-size: 13px; color: #64748b; margin-top: 5px; }

/* ---- 展望 CTA ---- */
.about-cta {
  position: relative; overflow: hidden;
  max-width: 1040px; margin: 0 auto; border-radius: 24px;
  background:
    radial-gradient(720px 380px at 82% -10%, rgba(59, 130, 246, 0.32), transparent 60%),
    radial-gradient(560px 340px at 10% 110%, rgba(99, 102, 241, 0.26), transparent 62%),
    linear-gradient(160deg, #0b1224 0%, #111d38 52%, #0d1730 100%);
  color: #e8eefc;
}
.about-cta-bg {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(148, 163, 184, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, 0.07) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(ellipse 78% 62% at 50% 42%, #000 25%, transparent 78%);
  mask-image: radial-gradient(ellipse 78% 62% at 50% 42%, #000 25%, transparent 78%);
}
.about-cta-inner { position: relative; z-index: 1; text-align: center; padding: 64px 32px; }
.about-cta h2 { font-size: 32px; font-weight: 800; color: #f8fafc; margin: 22px 0 14px; letter-spacing: -0.02em; }
.about-cta p { font-size: 15px; color: rgba(226, 232, 240, 0.72); max-width: 560px; margin: 0 auto 30px; line-height: 1.85; }
.about-cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.about-cta-actions .btn { border-radius: 14px; padding: 14px 38px; font-size: 15px; }

@media (max-width: 860px) {
  .about-intro { grid-template-columns: 1fr; gap: 30px; }
  .about-stats { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .timeline::before { left: 19px; transform: none; }
  .tl-item, .tl-item:nth-of-type(even) {
    width: 100%; margin-left: 0; padding: 0 0 30px 54px;
  }
  .tl-item::after, .tl-item:nth-of-type(even)::after { left: 13px; right: auto; top: 26px; }
  .tl-card { padding: 22px 20px; }
  .tl-year { font-size: 24px; }
  .tl-metrics { gap: 20px; }
  .about-stat-num { font-size: 27px; }
  .about-cta-inner { padding: 48px 22px; }
  .about-cta h2 { font-size: 26px; }
  .about-cta-actions .btn { width: 100%; max-width: 300px; }
}

/* ============================================================
   联系页 · TG 客服卡（飞机客服）
   ============================================================ */
.contact-wrap { max-width: 720px; }
.contact-card {
  position: relative;
  background: #fff; border: 1px solid rgba(15, 23, 42, 0.07);
  border-radius: 20px; padding: 30px 32px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
  margin-bottom: 20px;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.contact-card:hover {
  transform: translateY(-3px);
  border-color: rgba(37, 99, 235, 0.25);
  box-shadow: 0 24px 40px -22px rgba(30, 58, 138, 0.22);
}
.contact-card-tg {
  background:
    radial-gradient(560px 300px at 88% -20%, rgba(34, 158, 217, 0.15), transparent 60%),
    linear-gradient(150deg, #f2f9fd 0%, #ffffff 55%);
  border-color: rgba(34, 158, 217, 0.25);
}
.contact-card-tg:hover {
  border-color: rgba(34, 158, 217, 0.5);
  box-shadow: 0 24px 40px -22px rgba(34, 158, 217, 0.4);
}
.contact-card-head { display: flex; align-items: center; gap: 16px; margin-bottom: 22px; }
.contact-tg-icon, .contact-mail-icon {
  flex-shrink: 0; width: 52px; height: 52px; border-radius: 16px;
  display: inline-flex; align-items: center; justify-content: center;
}
.contact-tg-icon {
  background: linear-gradient(135deg, #38bdf8 0%, #229ed9 60%, #1b87ba 100%);
  color: #fff;
  box-shadow: 0 12px 24px -10px rgba(34, 158, 217, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.35);
}
.contact-tg-icon svg { width: 26px; height: 26px; }
.contact-mail-icon { background: #eff6ff; color: #2563eb; }
.contact-mail-icon svg { width: 24px; height: 24px; }
.contact-card h3 { font-size: 18px; font-weight: 700; color: #0f172a; line-height: 1.4; }
.contact-card-tip { font-size: 13px; color: #64748b; margin-top: 4px; line-height: 1.7; }
.contact-tg-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 30px; border-radius: 13px;
  font-size: 15px; font-weight: 600; color: #fff;
  background: linear-gradient(135deg, #38bdf8 0%, #229ed9 100%);
  box-shadow: 0 16px 30px -10px rgba(34, 158, 217, 0.55);
  transition: transform 0.2s ease, filter 0.2s ease, box-shadow 0.2s ease;
}
.contact-tg-btn:hover {
  transform: translateY(-2px); filter: brightness(1.06);
  color: #fff; text-decoration: none;
}
.contact-tg-btn svg { width: 16px; height: 16px; transition: transform 0.2s ease; }
.contact-tg-btn:hover svg { transform: translateX(3px); }
.contact-mail-btn {
  display: inline-flex; padding: 12px 28px; border-radius: 13px;
  font-size: 15px; font-weight: 600; color: var(--primary);
  border: 1px solid var(--primary); background: #fff;
  transition: all 0.2s ease;
}
.contact-mail-btn:hover { background: var(--primary); color: #fff; text-decoration: none; }
.contact-tg-url {
  margin-top: 14px; font-size: 12.5px; color: #94a3b8;
  word-break: break-all; line-height: 1.6;
}
.contact-tg-empty {
  display: inline-block; font-size: 13.5px; color: #b45309;
  background: #fffbeb; border: 1px solid #fde68a;
  padding: 10px 16px; border-radius: 12px;
}

@media (max-width: 640px) {
  .contact-card { padding: 24px 20px; }
  .contact-card-head { gap: 13px; margin-bottom: 18px; }
  .contact-tg-icon, .contact-mail-icon { width: 46px; height: 46px; }
  .contact-tg-btn { width: 100%; justify-content: center; }
}