/* 文件: themes/default/style.css */
/* 浅色主题样式 - 适用于中文新闻/资讯网站 */

/* =============================================
   CSS 变量与设计系统
   ============================================= */
:root {
  /* 主色调 - 优雅蓝色系 */
  --primary:        #0284c7;
  --primary-dark:   #075985;
  --primary-light:  #38bdf8;
  --accent:         #e11d48;
  
  /* 背景色 - 浅色系 */
  --bg-dark:        #f8fafc;
  --bg-card:        #ffffff;
  --bg-card2:       #f1f5f9;
  --bg-header:      #ffffff;
  
  /* 边框颜色 */
  --border:         #e2e8f0;
  --border-gold:    rgba(2,132,199,0.28);
  
  /* 文字颜色 */
  --text-primary:   #0f172a;
  --text-secondary: #475569;
  --text-muted:     #64748b;
  
  /* 圆角与阴影 */
  --radius:         2px;
  --radius-lg:      0px;
  --shadow:         0 4px 18px rgba(15,23,42,0.06);
  --shadow-gold:    0 14px 34px rgba(2,132,199,0.14);
  
  /* 过渡与字体 */
  --transition:     0.35s cubic-bezier(.22,.61,.36,1);
  --font-main:      'PingFang SC','Microsoft YaHei','Hiragino Sans GB',sans-serif;
  --header-h:       78px;
  --container:      1320px;
}

/* =============================================
   重置样式
   ============================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 15px; }
body {
  font-family: var(--font-main);
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.82;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; transition: color var(--transition), opacity var(--transition); }
a:hover { color: var(--primary); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, textarea, select { font-family: inherit; }

/* =============================================
   排版样式
   ============================================= */
h1 { font-size: clamp(2.6rem, 6vw, 5rem); font-weight: 900; line-height: 1.02; letter-spacing: -0.05em; text-transform: uppercase; color: var(--text-primary); }
h2 { font-size: clamp(1.9rem, 3.8vw, 3rem); font-weight: 900; line-height: 1.08; letter-spacing: -0.035em; text-transform: uppercase; color: var(--text-primary); }
h3 { font-size: clamp(1.2rem, 2.3vw, 1.8rem); font-weight: 800; line-height: 1.15; letter-spacing: -0.02em; color: var(--text-primary); }
h4 { font-size: 1rem; font-weight: 800; letter-spacing: 0.03em; text-transform: uppercase; color: var(--text-primary); }
p  { font-size: 1.02rem; color: var(--text-secondary); font-weight: 400; }

.gold { color: var(--primary); }
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }

/* 标题区块样式 */
.section-title {
  text-align: left;
  margin-bottom: 60px;
}
.section-title h2 {
  color: var(--text-primary);
  margin-bottom: 14px;
}
.section-title h2 span { color: var(--primary); }
.section-title p { color: var(--text-secondary); max-width: 720px; margin: 0; }
.section-title .divider {
  width: 92px; height: 4px;
  background: linear-gradient(90deg, var(--primary), rgba(2,132,199,0));
  margin: 22px 0 0;
  border-radius: 0;
}

/* =============================================
   布局
   ============================================= */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}
.section { padding: 104px 0; }
.section-dark  { background: var(--bg-dark); }
.section-card  { background: var(--bg-card); }
.section-card2 { background: var(--bg-card2); }

.grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: 34px; }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 30px; }
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
.grid-main-sidebar {
  display: grid;
  grid-template-columns: minmax(0,1fr) 360px;
  gap: 42px;
}
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-2 { gap: 12px; }
.gap-4 { gap: 22px; }

/* =============================================
   按钮
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: var(--radius);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: all var(--transition);
  white-space: nowrap;
  cursor: pointer;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #ffffff;
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #ffffff;
  transform: translateY(-3px);
  box-shadow: var(--shadow-gold);
}
.btn-outline {
  border: 1px solid var(--primary);
  color: var(--primary);
  background: transparent;
}
.btn-outline:hover {
  background: var(--primary);
  color: #ffffff;
}
.btn-accent {
  background: var(--accent);
  color: #ffffff;
}
.btn-accent:hover {
  background: #be123c;
  color: #ffffff;
  transform: translateY(-3px);
}
.btn-lg { padding: 18px 46px; font-size: 0.9rem; }
.btn-sm { padding: 10px 20px; font-size: 0.72rem; }

/* =============================================
   卡片
   ============================================= */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition), background var(--transition);
}
.card:hover {
  transform: translateY(-6px);
  border-color: var(--border-gold);
  box-shadow: var(--shadow-gold);
  background: #ffffff;
}
.card-img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.card-body { padding: 24px; }
.card-title {
  font-size: 1.08rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 10px;
  line-height: 1.24;
  letter-spacing: -0.02em;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-title a:hover { color: var(--primary); }
.card-meta {
  display: flex;
  gap: 16px;
  font-size: 0.74rem;
  color: var(--text-muted);
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 0.09em;
}
.card-excerpt {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.78;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-footer {
  padding: 14px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* 文章列表项 */
.post-item {
  display: flex;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.post-item:last-child { border-bottom: none; }
.post-item-thumb {
  width: 116px;
  height: 78px;
  object-fit: cover;
  border-radius: var(--radius);
  flex-shrink: 0;
}
.post-item-body { flex: 1; min-width: 0; }
.post-item-title {
  font-size: 0.98rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.3;
  letter-spacing: -0.015em;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 8px;
}
.post-item-title a:hover { color: var(--primary); }
.post-item-meta { font-size: 0.72rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.08em; }

/* =============================================
   页头
   ============================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.96);
  border-bottom: 1px solid var(--border);
  height: var(--header-h);
  box-shadow: 0 2px 14px rgba(15,23,42,0.06);
  backdrop-filter: blur(14px);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.site-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}
.site-logo img { height: 46px; width: auto; }
.site-logo-text {
  font-size: 1.55rem;
  font-weight: 900;
  color: var(--text-primary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* 主导航 */
.main-nav { display: flex; align-items: center; }
.main-nav ul { display: flex; align-items: center; gap: 8px; }
.main-nav a {
  display: block;
  padding: 10px 12px;
  font-size: 0.76rem;
  font-weight: 800;
  color: var(--text-secondary);
  border-radius: var(--radius);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: all var(--transition);
}
.main-nav a:hover,
.main-nav a.active {
  color: var(--primary);
  background: rgba(2,132,199,0.08);
}
.main-nav .nav-cta {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #ffffff !important;
  padding: 11px 22px;
  font-weight: 900;
  border-radius: var(--radius);
  margin-left: 16px;
}
.main-nav .nav-cta:hover {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #ffffff !important;
}

/* 页头搜索 */
.header-search { position: relative; }
.header-search input {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 10px 44px 10px 16px;
  border-radius: 0;
  font-size: 0.8rem;
  width: 214px;
  letter-spacing: 0.04em;
  transition: all var(--transition);
}
.header-search input:focus {
  outline: none;
  border-color: var(--primary);
  width: 268px;
  background: #ffffff;
}
.header-search input::placeholder { color: var(--text-muted); }
.header-search button {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.9rem;
}
.header-search button:hover { color: var(--primary); }

/* 汉堡菜单 */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 8px;
  cursor: pointer;
}
.hamburger span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 0;
  transition: all var(--transition);
}

/* 移动端导航遮罩 */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(255,255,255,0.98);
  z-index: 
999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--text-primary);
  padding: 14px 36px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.mobile-nav a:hover { color: var(--primary); }
.mobile-nav-close {
  position: absolute;
  top: 24px;
  right: 24px;
  font-size: 2.1rem;
  color: var(--text-muted);
  cursor: pointer;
}

/* =============================================
   首页 Hero 区域
   ============================================= */
.hero {
  position: relative;
  min-height: 720px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 48%, #f8fafc 100%);
}
.hero-bg {
  position: absolute;
  inset: 0;
  object-fit: cover;
  width: 100%;
  height: 100%;
  opacity: 0.18;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.72) 0%, rgba(240,249,255,0.45) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 820px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(2,132,199,0.08);
  border: 1px solid var(--border-gold);
  color: var(--primary);
  padding: 8px 18px;
  border-radius: 0;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 26px;
}
.hero h1 { color: var(--text-primary); margin-bottom: 24px; }
.hero h1 span { color: var(--primary); }
.hero p {
  color: var(--text-secondary);
  font-size: 1.16rem;
  margin-bottom: 42px;
  max-width: 620px;
}
.hero-btns { display: flex; gap: 18px; flex-wrap: wrap; }
.hero-stats {
  display: flex;
  gap: 52px;
  margin-top: 58px;
  padding-top: 36px;
  border-top: 1px solid var(--border);
}
.hero-stat-num {
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--primary);
  display: block;
  line-height: 1;
  letter-spacing: -0.04em;
}
.hero-stat-label {
  font-size: 0.74rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

/* 装饰性光晕 */
.hero::after {
  content: '';
  position: absolute;
  right: -120px;
  top: -140px;
  width: 560px;
  height: 560px;
  background: radial-gradient(circle, rgba(2,132,199,0.12) 0%, rgba(2,132,199,0) 72%);
  pointer-events: none;
}

/* =============================================
   面包屑
   ============================================= */
.breadcrumb {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}
.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.breadcrumb-list a { color: var(--text-muted); }
.breadcrumb-list a:hover { color: var(--primary); }
.breadcrumb-list .sep { color: #cbd5e1; }
.breadcrumb-list .current { color: var(--text-primary); }

/* =============================================
   首页精选文章
   ============================================= */
.featured-grid {
  display: grid;
  grid-template-columns: minmax(0,1.35fr) minmax(0,0.95fr);
  grid-template-rows: auto auto;
  gap: 28px;
}
.featured-main {
  grid-row: 1 / 3;
  grid-column: 1 / 2;
}
.featured-main .card-img { aspect-ratio: 5/4; }
.featured-main .card-title { font-size: 1.5rem; }
.featured-main .card-excerpt { -webkit-line-clamp: 4; }

/* 分类标签 */
.cat-label {
  display: inline-block;
  background: var(--primary);
  color: #ffffff;
  font-size: 0.66rem;
  font-weight: 900;
  padding: 5px 12px;
  border-radius: 0;
  text-transform: uppercase
;
  letter-spacing: 0.14em;
  margin-bottom: 10px;
}
.cat-label-accent { background: var(--accent); color: #ffffff; }

/* =============================================
   滚动条 / 突发新闻
   ============================================= */
.ticker-bar {
  background: var(--accent);
  color: #ffffff;
  padding: 12px 0;
  overflow: hidden;
}
.ticker-inner { display: flex; align-items: center; gap: 24px; }
.ticker-label {
  font-size: 0.72rem;
  font-weight: 900;
  background: rgba(255,255,255,0.22);
  padding: 5px 12px;
  border-radius: 0;
  white-space: nowrap;
  flex-shrink: 0;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.ticker-track {
  display: flex;
  gap: 56px;
  animation: ticker 30s linear infinite;
  white-space: nowrap;
  font-size: 0.84rem;
  letter-spacing: 0.04em;
}
.ticker-track a { color: #ffffff; }
.ticker-track a:hover { text-decoration: underline; }
@keyframes ticker {
  from { transform: translateX(0); }


  to   { transform: translateX(-50%); }
}

/* =============================================
   APP 下载卡片
   ============================================= */
.app-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.app-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 34px 22px 30px;
  text-align: left;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.app-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), rgba(2,132,199,0));
}
.app-card:hover {
  border-color: var(--border-gold);
  transform: translateY(-6px);
  box-shadow: var(--shadow-gold);
}
.app-card img {
  width: 88px;
  height: 88px;
  object-fit: contain;
  margin: 0 0 20px;
  border-radius: 8px;
}
.app-card h4 { color: var(--text-primary); font-size: 1.06rem; margin-bottom: 12px; }
.app-card p { font-size: 0.86rem; color: var(--text-secondary); }

/* =============================================
   关于我们
   ============================================= */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 76px;
  align-items: center;
}
.about-content h2 { margin-bottom: 24px; }
.about-content p { color: var(--text-secondary); margin-bottom: 18px; }
.about-features { margin: 34px 0; display: flex; flex-direction: column; gap: 16px; }
.about-feature {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.about-feature-icon {
  width: 44px;
  height: 44px;
  background: rgba(2,132,199,0.10);
  border: 1px solid var(--border-gold);
  border-radius: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  flex-shrink: 0;
  margin-top: 6px;
  color: var(--primary);
}
.about-feature-text h4 { color: var(--primary); font-size: 1.08rem; margin-bottom: 6px; }
.about-feature-text p { font-size: 0.92rem; margin: 0; }
.about-img-wrap { position: relative; }
.about-img-wrap img {
  width: 100%;
  border-radius: 0;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}
.about-img-badge {
  position: absolute;
  bottom: -28px;
  right: -12px;
  background: var(--primary);
  color: #ffffff;
  font-weight: 900;
  font-size: 1.35rem;
  width: 112px;
  height: 112px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  line-height: 1.1;
  box-shadow: 0 18px 40px rgba(2,132,199,0.28);
}

/* =============================================
   常见问题
   ============================================= */
.faq-list { display: flex; flex-direction: column; gap: 18px; }
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 0;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 24px;
  cursor: pointer;
  font-weight: 800;
  font-size: 1.02rem;
  color: var(--text-primary);
  user-select: none;
  transition: color var(--transition), background var(--transition), letter-spacing var(--transition);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.faq-question:hover { color: var(--primary); background: rgba(2,132,199,0.04); }
.faq-question .faq-icon {
  width: 28px;
  height: 28px;
  border: 1px solid var(--border-gold);
  border-radius: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--primary);
  flex-shrink: 0;
  transition: transform var(--transition), background var(--transition);
}
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer {
  display: none;
  padding: 0 24px 22px;
  color: var(--text-secondary);
  font-size: 0.96rem;
  line-height: 2;
  border-top: 1px solid var(--border);
}
.faq-item.open .faq-answer { display: block; }

/* 合作伙伴 */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 26px;
  margin-bottom: 52px;
}
.partner-card {
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: 0;
  padding: 30px 18px 26px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform .28s, box-shadow .28s, border-color .28s;
}
.partner-card:hover { transform: translateY(-6px); box-shadow: 0 16px 36px rgba(2,132,199,0.16); }
.partner-icon { font-size: 2.4rem; margin-bottom: 14px; color: var(--primary); }
.partner-name { font-weight: 800; font-size: 1.18rem; color: var(--primary); margin-bottom: 8px; letter-spacing: 0.03em; text-transform: uppercase; }
.partner-desc { font-size: .88rem; color: var(--text-secondary); line-height: 1.75; }

/* 信任徽章 */
.trust-row {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
  border-top: 1px solid var(--border-gold);
  padding-top: 34px;
}
.trust-badge {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: 0;
  padding: 10px 22px;
  font-size: .94rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

@media (max-width: 768px) {
  .partners-grid { grid-template-columns: repeat(2, 1fr); }
}

/* =============================================
   侧边栏
   ============================================= */
.sidebar { display: flex; flex-direction: column; gap: 30px; }
.widget {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 0;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.widget-header {
  padding: 16px 22px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}
.widget-header h4 {
  font-size: 0.96rem;
  font-weight: 800;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 1.4px;
}
.widget-header::before {
  content: '';
  display: block;
  width: 4px;
  height: 20px;
  background: var(--primary);
  border-radius: 0;
}
.widget-body { padding: 20px 22px; }

/* 侧边栏搜索 */
.widget-search { display: flex; gap: 10px; }
.widget-search input {
  flex: 1;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 11px 16px;
  border-radius: 0;
  font-size: 0.92rem;
}
.widget-search input:focus { outline: none; border-color: var(--primary); background: #ffffff; }
.widget-search button {
  background: var(--primary);
  color: #ffffff;
  padding: 11px 16px;
  border-radius: 0;
  font-weight: 800;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* 分类列表 */
.cat-list { display: flex; flex-direction: column; }

.cat-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.92rem;
}
.cat-list-item:last-child { border-bottom: none; }
.cat-list-item a { color: var(--text-secondary); }
.cat-list-item a:hover { color: var(--primary); }
.cat-count {
  background: var(--bg-card2);
  color: var(--text-muted);
  font-size: 0.74rem;
  padding: 3px 9px;
  border-radius: 0;
}

/* 热门文章组件 */
.popular-item {
  display: flex;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}
.popular-item:last-child { border-bottom: none; }
.popular-rank {
  font-size: 1.45rem;
  font-weight: 900;
  color: #cbd5e1;
  width: 28px;
  flex-shrink: 0;
  line-height: 0.95;
  padding-top: 1px;
}
.popular-item:nth-child(1) .popular-rank { color: var(--primary); }
.popular-item:nth-child(2) .popular-rank { color: var(--primary-light); }
.popular-item:nth-child(3) .popular-rank { color: #94a3b8; }
.popular-img {
  width: 72px;
  height: 50px;
  object-fit: cover;
  border-radius: 0;
  flex-shrink: 0;
}
.popular-title {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-primary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.55;
}
.popular-title a:hover { color: var(--primary); }

/* 标签云 */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
.tag-item {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.75rem;
  padding: 6px 13px;
  border-radius: 0;
  transition: all var(--transition);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.tag-item:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(2,132,199,0.06);
}

/* =============================================
   单篇文章
   ============================================= */
.post-hero {
  position: relative;
  height: 460px;
  overflow: hidden;
}
.post-hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.post-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15,23,42,0.78) 0%, rgba(15,23,42,0.18) 58%, rgba(15,23,42,0) 100%);
}
.post-hero-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 52px 44px;
  color: #ffffff;
}
.post-hero-content h1 { color: #ffffff; }
.post-header { padding: 48px 0 0; }
.post-title { font-size: clamp(1.9rem, 3.4vw, 3rem); margin-bottom: 20px; line-height: 1.05; letter-spacing: -0.03em; }
.post-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 24px;
  color: var(--text-muted);
  font-size: 0.82rem;
  margin-bottom: 34px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--border);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.post-meta span { display: flex; align-items: center; gap: 8px; }
.post-content {
  color: var(--text-secondary);
  font-size: 1.04rem;
  line-height: 2.05;
}
.post-content h2, .post-content h3, .post-content h4 {
  color: var(--text-primary);
  margin: 34px 0 14px;
  line-height: 1.15;
  letter-spacing: -0.02em;
}
.post-content p { margin-bottom: 20px; }
.post-content img {
  max-width: 100%;
  border-radius: 0;
  margin: 24px 0;
  border: 1px solid var(--border);
}
.post-content a { color: var(--primary); text-decoration: underline; }
.post-content blockquote {
  border-left: 4px solid var(--primary);
  padding: 20px 24px;
  background: var(--bg-card2);
  border-radius: 0;
  margin: 28px 0;
  font-style: italic;
  color: var(--text-secondary);
}
.post-content ul, .post-content ol {
  padding-left: 28px;
  margin: 20px 0;
  list-style: disc;
}
.post-content ol { list-style: decimal; }
.post-content li { margin-bottom: 10px; color: var(--text-secondary); }
.post-content table {

  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 0.94rem;
}
.post-content th {
  background: var(--bg-card2);
  color: var(--primary);
  padding: 12px 16px;
  text-align: left;
  border: 1px solid var(--border);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.post-content td {
  padding: 12px 16px;
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

/* 文章标签 */
.post-tags { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 34px; }
.post-tags-label { font-size: 0.78rem; color: var(--text-muted); font-weight: 800; text-transform: uppercase; letter-spacing: 0.08em; }

/* 分享栏 */
.share-bar {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: 0;
  padding: 18px 22px;
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 34px 0;
  flex-wrap: wrap;
}
.share-label { font-size: 0.8rem; color: var(--text-muted); font-weight: 800; margin-right: 6px; text-transform: uppercase; letter-spacing: 0.08em; }
.share-btn {
  padding: 8px 18px;
  border-radius: 0;
  font-size: 0.76rem;
  font-weight: 800;
  color: #ffffff;
  display: inline-block;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.share-wechat  { background: #07c160; }
.share-weibo   { background: #e6162d; }
.share-twitter { background: #1da1f2; }
.share-copy    { background: var(--bg-card); border: 1px solid var(--border); color: var(--text-secondary); cursor: pointer; }

/* 相关文章 */
.related-posts { margin-top: 58px; }
.related-posts h3 { margin-bottom: 24px; font-size: 1.22rem; border-left: 4px solid var(--primary); padding-left: 14px; text-transform: uppercase; letter-spacing: 0.06em; }

/* =============================================
   分页
   ============================================= */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 56px;
}
.page-item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 0;
  font-size: 0.82rem;
  font-weight: 800;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  background: var(--bg-card);
  transition: all var(--transition);
}
.page-item:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); }
.page-item.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
}
.page-item.disabled { opacity: 0.4; pointer-events: none; }

/* =============================================
   搜索页
   ============================================= */
.search-header { padding: 52px 0; border-bottom: 1px solid var(--border); margin-bottom: 42px; }
.search-form-large { display: flex; gap: 14px; max-width: 680px; }
.search-form-large input {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 16px 22px;
  border-radius: 0;
  font-size: 1.04rem;
}
.search-form-large input:focus { outline: none; border-color: var(--primary); }
.search-results-count { font-size: 0.9rem; color: var(--text-muted); margin-top: 14px; }
.search-highlight { color: var(--primary); font-weight: 800; }

/* =============================================
   页脚
   ============================================= */
.site-footer {
  background: #f1f5f9;
  border-top: 1px solid var(--border);
  padding-top: 72px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 52px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border);
}
.footer-brand-text { color: var(--text-secondary); font-size: 0.94rem; margin: 18px 0 24px; line-height: 1.95; }
.footer-social { display: flex; gap: 12px; }
.social-btn {
  width: 40px;
  height: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.02rem;
  color: var(--text-muted);
  transition: all var(--transition);
}
.social-btn:hover { border-color
: var(--primary); color: var(--primary); transform: translateY(-2px); background: #ffffff; }
.footer-col h5 {
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.8px;
  color: var(--primary);
  margin-bottom: 20px;
}

.footer-links { display: flex; flex-direction: column; gap: 14px; }
.footer-links a {
  font-size: 0.94rem;
  color: #5f708b;
  transition: color 0.28s ease, padding-left 0.28s ease, opacity 0.28s ease;
}
.footer-links a:hover { color: #3276c8; padding-left: 10px; opacity: 1; }
.footer-bottom {
  padding: 28px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 18px;
  background: linear-gradient(90deg, #eef4fb 0%, #e7f1f6 50%, #eef4fb 100%);
  border-top: 1px solid #c9d8ea;
  border-bottom: 1px solid #d6e2ef;
}
.footer-bottom p { font-size: 0.86rem; color: #6c7f97; }
.footer-legal { display: flex; gap: 30px; }
.footer-legal a { font-size: 0.86rem; color: #62758e; }
.footer-legal a:hover { color: #2f68ba; }
.footer-beian { margin-top: 10px; font-size: 12px;}
.footer-beian a { color: #72839c; text-decoration: none; transition: color 0.28s ease, text-decoration-color 0.28s ease;}
.footer-beian a:hover { color: #265cad; text-decoration: underline;}

/* 免责声明栏 */
.disclaimer-bar {
  background: rgba(73, 121, 196, 0.08);
  border-top: 1px solid #adc7dc;
  padding: 18px 0;
  text-align: center;
  font-size: 0.8rem;
  color: #62758d;
  letter-spacing: 0.1em;
  text-transform: none;
}

/* =============================================
   404 页面
   ============================================= */
.page-404 {
  min-height: 84vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(180deg, #eef5fb 0%, #e6f0f7 50%, #f4f8fc 100%);
}
.error-code {
  font-size: 10.5rem;
  font-weight: 800;
  color: #4e86d8;
  line-height: 0.86;
  opacity: 0.14;
  letter-spacing: -0.05em;
}
.error-title { font-size: 2.4rem; margin-bottom: 18px; letter-spacing: -0.04em; }
.error-msg { color: #667891; margin-bottom: 40px; font-size: 1.06rem; line-height: 1.8; }

/* =============================================
   静态页面 (关于、联系、隐私、条款)
   ============================================= */
.page-hero {
  background: linear-gradient(180deg, #edf4fb 0%, #e3eef8 50%, #dcebf1 100%);
  padding: 92px 0;
  border-bottom: 1px solid #c8d9eb;
  text-align: center;
}
.page-hero h1 { margin-bottom: 18px; }
.page-hero p { color: #677a92; font-size: 1.12rem; line-height: 1.85; }

.content-box {
  background: linear-gradient(180deg, #f7fbff 0%, #eef5fb 100%);
  border: 1px solid #cfdbeb;
  border-radius: 10px;
  padding: 56px;
  box-shadow: 0 20px 44px rgba(60, 95, 140, 0.08);
}
.content-box h2 {
  font-size: 1.66rem;
  color: #346fbe;
  margin: 40px 0 18px;
  padding-top: 28px;
  border-top: 1px solid #d7e3f0;
  line-height: 1.22;
  letter-spacing: -0.03em;
}
.content-box h2:first-child { border-top: none; margin-top: 0; padding-top: 0; }
.content-box p { color: #556983; margin-bottom: 22px; line-height: 2.05; }
.content-box ul { padding-left: 28px; list-style: disc; }
.content-box li { color: #586c86; margin-bottom: 12px; line-height: 1.85; }

/* 联系表单 */
.contact-form { display: flex; flex-direction: column; gap: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.form-group { display: flex; flex-direction: column; gap: 10px; }

.form-group label { font-size: 0.8rem; font-weight: 700; color: #51657e; letter-spacing: 0.12em; text-transform: none; }
.form-group input,
.form-group textarea,
.form-group select {
  background: #edf4fa;
  border: 1px solid #c8d8e8;
  color: #20354e;
  padding: 16px 18px;
  border-radius: 8px;
  font-size: 1rem;
  line-height: 1.65;
  transition: border-color var(--transition), background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #4a7fd1;
  background: #f8fbff;
  box-shadow: 0 0 0 4px rgba(74, 127, 209, 0.14);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: #7a8ea8; }
.form-group textarea { min-height: 188px; resize: vertical; }
.form-notice { font-size: 0.78rem; color: #71839d; letter-spacing: 0.06em; text-transform: none; }

/* 联系信息块 */
.contact-info { display: flex; flex-direction: column; gap: 0; }
.contact-info-item {
  display: flex;
  gap: 20px;
  padding: 26px 24px;
  background: #eef5fb;
  border: 1px solid #d0dced;
  border-radius: 8px;
}
.contact-info-item:nth-child(even) {
  background: #e4eff6;
}
.contact-icon {
  width: 56px;
  height: 56px;
  background: rgba(82, 134, 210, 0.12);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: #356fbe;
  flex-shrink: 0;
  box-shadow: inset 0 0 0 1px rgba(82, 134, 210, 0.14);
}
.contact-info-item h5 { font-size: 0.8rem; color: #2c63b3; margin-bottom: 8px; letter-spacing: 0.14em; text-transform: none; }
.contact-info-item p { font-size: 0.96rem; color: #647790; margin: 0; line-height: 1.75; }

/* =============================================
   分类页
   ============================================= */
.category-header {
  background: linear-gradient(180deg, #eef5fb 0%, #e3eef7 100%);
  border-bottom: 1px solid #cfdbeb;
  padding: 52px 0 34px;
  margin-bottom: 52px;
}
.category-header h1 { font-size: 2.45rem; line-height: 1.02; letter-spacing: -0.04em; }
.category-header p { color: #667a93; font-size: 1.03rem; margin-top: 14px; max-width: 640px; line-height: 1.9; }

.sort-bar {
  display: flex;
  align-items: center;
  gap: 14px 18px;
  margin-bottom: 36px;
  padding: 18px 0 24px;
  border-bottom: 1px solid #d4dfed;
  flex-wrap: wrap;
  background: linear-gradient(90deg, #f3f8fd 0%, #e8f1f8 50%, #f3f8fd 100%);
}
.sort-bar-label { font-size: 0.78rem; color: #73859d; letter-spacing: 0.14em; text-transform: none; }
.sort-btn {
  font-size: 0.8rem;
  padding: 10px 18px;
  border: 1px solid #cad9e8;
  border-radius: 8px;
  color: #667992;
  background: #f8fbfe;
  letter-spacing: 0.1em;
  text-transform: none;
  transition: all var(--transition);
}
.sort-btn:hover, .sort-btn.active {
  border-color: #4f83d3;
  color: #2f67b8;
  background: rgba(79, 131, 211, 0.08);
  box-shadow: 0 10px 22px rgba(79, 131, 211, 0.1);
}

/* =============================================
   加载 / 动画
   ============================================= */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeUp 0.72s cubic-bezier(0.2, 0.9, 0.2, 1) forwards; }

@keyframes pulse-gold {
  0%, 100% { box-shadow: 0 0 0 0 rgba(90, 140, 214, 0.26); }
  50%       { box-shadow: 0 0 0 12px rgba(90, 140, 214, 0); }
}
.pulse { animation: pulse-gold 2.6s infinite; }

/* =============================================
   通知 / 提示
   ============================================= */
.notice {
  padding: 18px 22px;
  border-radius: 8px;
  font-size: 0.88rem;
  border-left: 5px solid;
  margin-bottom: 28px;
  line-height: 1.8;
}
.notice-warning {
  background: rgba(86, 124, 196, 0.1);
  border-color: #5b7dc2;
  color: #3f558d;
}
.notice-info {
  background: rgba(67, 151, 178, 0.1);
  border-color: #3f93b0;
  color: #286d86;
}

/* =============================================
   响应式
   ============================================= */
@media (max-width: 1024px) {
  .grid-4     { grid-template-columns: repeat(2, 1fr); }
  .app-grid   { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 42px; }
  .grid-main-sidebar { grid-template-columns: 1fr; }
  .sidebar { display: grid; grid-template-columns: 1fr 1fr; }
  .about-grid { grid-template-columns: 1fr; gap: 52px; }
  .about-img-wrap { max-width: 600px; }
}

@media (max-width: 768px) {
  :root { --header-h: 64px; }
  .section { padding: 60px 0; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .featured-grid { grid-template-columns: 1fr; }
  .featured-main { grid-row: auto; grid-column: auto; }
  .main-nav { display: none; }
  .hamburger { display: flex; }
  .header-search { display: none; }
  .hero { min-height: 520px; }
  .hero-stats { flex-wrap: wrap; gap: 24px; }
  .post-hero { height: 260px; }
  .post-hero-content { padding: 24px; }
  .sidebar { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 34px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .form-row { grid-template-columns: 1fr; }
  .app-grid { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .hero-btns { flex-direction: column; }
  .share-bar { flex-direction: column; align-items: flex-start; }
  .content-box { padding: 34px 24px; }
  .about-img-badge { width: 82px; height: 82px; font-size: 1rem; bottom: -14px; right: -14px; }
}

@media (max-width: 480px) {
  .container { padding: 0 18px; }
  h1 { font-size: 1.9rem; }
  .app-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .app-card { padding: 20px 14px; }
  .error-code { font-size: 6.2rem; }
  .search-form-large { flex-direction: column; }
}

/* =============================================
   滚动条
   ============================================= */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: #e9f1f8; }
::-webkit-scrollbar-thumb { background: #9eb5cf; border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: #4d7fcb; }

/* =============================================
   选中文字
   ============================================= */
::selection { background: rgba(88, 126, 209, 0.24); color: #1d324c; }

/* =============================================
   返回顶部
   ============================================= */
.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 52px;
  height: 52px;
  background: linear-gradient(180deg, #4d82d2 0%, #3569b8 100%);
  color: #f6fbff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 800;
  box-shadow: 0 16px 34px rgba(53, 105, 184, 0.28);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition), background var(--transition), box-shadow var(--transition);
  z-index: 500;
}
.back-to-top.visible { opacity: 1; pointer-events: auto; }
.back-to-top:hover { transform: translateY(-6px); box-shadow: 0 22px 40px rgba(53, 105, 184, 0.36); background: linear-gradient(180deg, #3f73c5 0%, #2759a7 100%); }

/* =============================================
   style-supplement.css
   补充样式 — app.php / login.php / signup.php
   ============================================= */


/* =============================================
   APP 页面 — app.php
   ============================================= */

.app-hero {
  position: relative;
  padding: 118px 0 86px;
  overflow: hidden;
  background: linear-gradient(180deg, #edf5fc 0%, #e3eef7 34%, #dbeaf0 68%, #eef5fb 100%);
  text-align: center;
}
.app-hero::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 46%;
  transform: translate(-50%, -50%);
  width: 820px;
  height: 820px;
  background: radial-gradient(circle,
 rgba(84, 128, 206, 0.12) 0%, transparent 69%);
  pointer-events: none;
}
.app-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: rgba(76, 127, 208, 0.08);
  border: 1px solid rgba(76, 127, 208, 0.26);
  color: #356ebe;
  padding: 9px 22px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: none;
  margin-bottom: 30px;
}
.app-hero h1 { color: #20344d; margin-bottom: 24px; }
.app-hero h1 span { color: #3a73c5; }
.app-hero-sub {
  color: #5c708a;
  font-size: 1.2rem;
  max-width: 680px;
  margin: 0 auto 56px;
  line-height: 1.95;
}

/* 下载按钮 */
.dl-btns {
  display: flex;
  justify-content: center;
  gap: 22px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}
.dl-btn {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  padding: 18px 36px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.94rem;
  letter-spacing: 0.08em;
  text-transform: none;
  transition: all 0.3s ease;
  cursor: pointer;
  text-decoration: none;
}
.dl-btn-android {
  background: linear-gradient(135deg, #4f86d4, #2f68b8);
  color: #f6fbff;
  border: none;
}
.dl-btn-android:hover {
  background: linear-gradient(135deg, #3c73c4, #255ba8);
  color: #f6fbff;
  transform: translateY(-5px);
  box-shadow: 0 18px 38px rgba(47, 104, 184, 0.26);
}
.dl-btn-ios {
  background: #f8fbff;
  border: 1px solid rgba(79, 134, 212, 0.4);
  color: #356ebe;
}
.dl-btn-ios:hover {
  background: rgba(79, 134, 212, 0.08);
  border-color: #2d64b5;
  color: #295ca9;
  transform: translateY(-5px);
}
.dl-btn-icon { font-size: 1.7rem; line-height: 1; }
.dl-btn-text-wrap { text-align: left; }
.dl-btn-sub { font-size: 0.66rem; font-weight: 600; opacity: 0.8; display: block; letter-spacing: 0.1em; }
.dl-btn-main { font-size: 1.08rem; font-weight: 800; display: block; }

/* Hero 统计 */
.app-hero-stats {
  display: flex;
  justify-content: center;
  gap: 64px;
  padding-top: 42px;
  border-top: 1px solid rgba(84, 130, 205, 0.2);
  flex-wrap: wrap;
}
.app-hero-stat { text-align: center; }
.app-hero-stat-num {
  font-size: 2.3rem;
  font-weight: 800;
  color: #3972c4;
  display: block;
  letter-spacing: -0.04em;
}
.app-hero-stat-label { font-size: 0.74rem; color: #70839c; letter-spacing: 0.14em; text-transform: none; }

/* APP 模型展示区 */
.app-mockup-section {
  padding: 88px 0;
  background: linear-gradient(180deg, #f7fbff 0%, #edf4fa 100%);
  border-top: 1px solid #d3deec;
  border-bottom: 1px solid #d3deec;
}
.app-mockup-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 82px;
  align-items: center;
}
.app-mockup-text h2 { margin-bottom: 24px; }
.app-mockup-text h2 span { color: #346ebe; }
.app-mockup-text p { color: #586b84; margin-bottom: 34px; font-size: 1.04rem; line-height: 1.95; }
.app-features-list { display: flex; flex-direction: column; gap: 20px; }
.app-feature-row { display: flex; align-items: flex-start; gap: 16px; }
.app-feature-check {
  width: 28px;
  height: 28px;
  background: rgba(73, 130, 209, 0.1);
  border: 1px solid rgba(73, 130, 209, 0.34);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.74rem;
  color: #336cb9;
  flex-shrink: 0;
  margin-top: 2px;
}
.app-feature-row p { font-size: 0.94rem; color: #5a6e88; margin: 0; line-height: 1.8; }
.app-feature-row strong { color: #233751; font-weight: 700; }

/* 手机预览 */
.phone-visual { display: flex; justify-content: center; gap: 34px; }
.phone-frame {
  width: 176px;
  background: #f9fcff;
  border: 2px solid #ccd9e7;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 26px 56px rgba(42, 70, 108, 0.14), 0 0 0 1px rgba(84, 128, 206, 0.06);
  position: relative;
}
.phone-frame.large { width: 214px; }
.phone-notch {
  height: 30px;
  background: #e9f1f8;
  display: flex;
  align-items: center;
  justify-content: center;
}
.phone-notch::after {
  content: '';
  width: 70px;
  height: 10px;
  background: #afc1d4;
  border-radius: 999px;
}
.phone-screen {
  background: linear-gradient(180deg, #f4f9fd 0%, #e8f1f8 100%);
  padding: 16px;
  min-height: 328px;
}

.phone-screen-header {
  background: linear-gradient(90deg, #1d4f91, #246b7c);
  border-radius: 8px 8px 0 0;
  height: 34px;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  padding: 0 14px;
}
.phone-screen-header span { font-size: 0.6rem; font-weight: 800; color: #eef7ff; letter-spacing: 0.12em; text-transform: uppercase; }
.phone-screen-card {
  background: #f3f9ff;
  border: 1px solid #bdd0e4;
  border-radius: 8px;
  height: 64px;
  margin-bottom: 12px;
  padding: 11px 12px;
  display: flex;
  gap: 10px;
  align-items: center;
}
.phone-screen-card:nth-child(even) {
  background: #e8f5f7;
}
.phone-screen-img {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, #d7e7f5, #a9c7da);
  border-radius: 6px;
  flex-shrink: 0;
}
.phone-screen-lines { flex: 1; }
.phone-screen-line { height: 6px; border-radius: 4px; margin-bottom: 7px; }
.phone-screen-line.gold { background: rgba(56, 189, 248, 0.72); width: 72%; }
.phone-screen-line.gray { background: #aebfd0; width: 52%; }
.phone-bottom {
  height: 24px;
  background: #dfeaf2;
  display: flex;
  align-items: center;
  justify-content: center;
}
.phone-home-bar { width: 58px; height: 5px; background: #6f8aa3; border-radius: 999px; }

/* 二维码区 */
.qr-section { padding: 82px 0; background: var(--bg-dark); }
.qr-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.qr-card {
  background: linear-gradient(180deg, #f4faff 0%, #e9f4f8 100%);
  border: 1px solid #c0d6e6;
  border-radius: 10px;
  padding: 34px 20px 28px;
  text-align: center;
  box-shadow: 0 10px 24px rgba(28, 78, 128, 0.08);
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease, background-color 0.35s ease;
  position: relative;
  overflow: hidden;
}
.qr-card:nth-child(even) {
  background: linear-gradient(180deg, #eefbfd 0%, #e1f1ef 100%);
}
.qr-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 6px;
  background: linear-gradient(90deg, #2f6fb2, #43b3b3);
}
.qr-card:hover {
  border-color: rgba(67,179,179,0.54);
  transform: translateY(-4px);
  box-shadow: 0 16px 34px rgba(47, 111, 178, 0.14);
}
.qr-icon { font-size: 2.4rem; margin-bottom: 16px; color: #2f6fb2; }
.qr-card h4 { color: #28598e; font-size: 1.02rem; margin-bottom: 12px; letter-spacing: 0.01em; }
.qr-card p { font-size: 0.88rem; color: var(--text-secondary); margin-bottom: 20px; line-height: 1.8; }
.qr-box {
  width: 124px;
  height: 124px;
  background: #fdfefe;
  border: 1px solid #c7d9e8;
  border-radius: 8px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.qr-btn {
  display: inline-block;
  padding: 11px 24px;
  background: linear-gradient(135deg, #2c6bb0, #4a4fb4);
  color: #eff8ff;
  font-weight: 700;
  font-size: 0.76rem;
  border-radius: 8px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: transform 0.28s ease, box-shadow 0.28s ease, background 0.28s ease;
  text-decoration: none;
}
.qr-btn:hover {
  background: linear-gradient(135deg, #4a4fb4, #2c6bb0);
  color: #f3fbff;
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(44, 107, 176, 0.2);
}

/* 安装步骤 */
.install-section {
  padding: 82px 0;
  background: var(--bg-card);
  border-top: 1px solid #c6d8e5;
}
.install-tabs {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 40px;
}
.install-tab {
  padding: 13px 26px;
  border-radius: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  border: 1px solid #c1d4e3;
  color: var(--text-muted);
  cursor: pointer;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
  background: linear-gradient(180deg, #f5fafe 0%, #e8f3f8 100%);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.install-tab.active,
.install-tab:hover {
  background: linear-gradient(135deg, #2e73ad, #5660c4);
  color: #edf8ff;
  border-color: #3f8cab;
  transform: translateY(-1px);
}
.install-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.install-step {
  text-align: center;
  position: relative;
  padding: 18px 14px 20px;
  border-radius: 10px;
  background: linear-gradient(180deg, #f5fbff 0%, #eaf4f8 100%);
  border: 1px solid #c6d8e6;
}
.install-step:nth-child(even) {
  background: linear-gradient(180deg, #eef9fb 0%, #e2f0ee 100%);
}
.install-step:not(:last-child)::after {
  content: '→';
  position: absolute;
  right: -14px;
  top: 34px;
  color: #97aec2;
  font-size: 1.1rem;
}
.step-num {
  width: 62px;
  height: 62px;
  background: rgba(72, 154, 193, 0.12);
  border: 1px solid rgba(72, 154, 193, 0.34);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.36rem;
  font-weight: 800;
  color: #2f6fb2;
  margin: 0 auto 16px;
}
.install-step h4 { font-size: 0.94rem; color: var(--text-primary); margin-bottom: 10px; letter-spacing: 0.01em; }
.install-step p { font-size: 0.8rem; color: var(--text-muted); line-height: 1.8; }

/* APP FAQ */
.app-faq { padding: 88px 0 76px; background: var(--bg-dark); }


/* =============================================
   认证共享 — login.php + signup.php
   ============================================= */

.auth-page { min-height: 100vh; display: flex; flex-direction: column; }

/* 左侧品牌面板 */
.auth-left {
  background: linear-gradient(180deg, #f5fbff 0%, #eaf5fb 34%, #e2f0f6 34%, #e2f0f6 68%, #edf8f4 68%, #edf8f4 100%);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 84px 68px 88px;
}
.auth-left::before {
  content: '';
  position: absolute;
  left: -100px;
  top: -100px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(73, 142, 199, 0.12) 0%, transparent 68%);
  pointer-events: none;
}
.auth-left::after {
  content: '';
  position: absolute;
  right: -80px;
  bottom: -80px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(98, 96, 196, 0.1) 0%, transparent 68%);
  pointer-events: none;
}
.auth-grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(23,46,76,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23,46,76,0.035) 1px, transparent 1px);
  background-size: 84px 84px;
  pointer-events: none;
}
.auth-left-content { position: relative; z-index: 2; }
.auth-brand { display: flex; align-items: center; gap: 18px; margin-bottom: 54px; }
.auth-brand-logo {
  width: 58px;
  height: 58px;
  background: linear-gradient(135deg, #2b6faf, #4f57b8);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  color: #eef8ff;
  box-shadow: 0 10px 20px rgba(43, 111, 175, 0.16);
}
.auth-brand-name {
  font-size: 1.46rem;
  font-weight: 800;
  color: #285c90;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.auth-headline {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.06;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  max-width: 11ch;
}
.auth-headline span { color: #2f6fb2; }
.auth-sub {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.9;
  margin-bottom: 50px;
  max-width: 520px;
  font-weight: 400;
}

/* 左面板特性列表 (登录) */
.auth-features { display: flex; flex-direction: column; gap: 18px; }
.auth-feature {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  letter-spacing: 0.01em;
}
.auth-feature-dot {
  width: 12px;
  height: 12px;
  background: #39a9b2;
  border-radius: 3px;
  flex-shrink: 0;
  box-shadow: 0 0 0 4px rgba(79, 87, 184, 0.12);
}

/* 左面板权益
列表 (注册) */
.auth-benefits { display: flex; flex-direction: column; gap: 16px; }
.auth-benefit { display: flex; align-items: flex-start; gap: 14px; }
.auth-benefit-icon {
  width: 40px;
  height: 40px;
  background: rgba(67, 179, 179, 0.1);
  border: 1px solid rgba(67, 179, 179, 0.34);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.94rem;
  flex-shrink: 0;
  color: #2f6fb2;
}
.auth-benefit-text h5 {
  font-size: 0.88rem;
  color: #295f93;
  margin-bottom: 6px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.auth-benefit-text p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.85;
  font-weight: 400;
}

/* 左面板底部装饰 */
.auth-left-deco { position: absolute; bottom: 34px; left: 68px; right: 68px; z-index: 2; }
.auth-deco-bar { height: 3px; background: linear-gradient(90deg, #2f6fb2, rgba(237, 248, 255, 0)); margin-bottom: 12px; }
.auth-deco-text {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

/* 右侧表单面板 */
.auth-right {
  background: linear-gradient(180deg, #fbfeff 0%, #f0f7fb 50%, #eaf3f8 100%);
  border-left: 1px solid #c8d8e4;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 52px;
  overflow-y: auto;
}
.auth-form-wrap { width: 100%; max-width: 410px; }
.auth-form-header { margin-bottom: 36px; }
.auth-form-header h2 {
  font-size: 1.82rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 10px;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}
.auth-form-header p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.85;
  font-weight: 400;
}

/* 表单字段 */
.auth-form { display: flex; flex-direction: column; gap: 20px; }
.auth-field { display: flex; flex-direction: column; gap: 8px; }
.auth-label {
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--text-secondary);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.auth-input-wrap { position: relative; }
.auth-input {
  width: 100%;
  background: #f4f9fc;
  border: 1px solid #c7d9e6;
  color: var(--text-primary);
  padding: 15px 50px 15px 18px;
  border-radius: 8px;
  font-size: 0.92rem;
  transition: border-color 0.28s ease, background-color 0.28s ease, box-shadow 0.28s ease, transform 0.28s ease;
  font-family: var(--font-main);
  line-height: 1.5;
}
.auth-input:focus {
  outline: none;
  border-color: #43b3b3;
  background: #fbfeff;
  box-shadow: 0 0 0 4px rgba(67, 179, 179, 0.14);
}
.auth-input.valid  { border-color: #2d9f7a; }
.auth-input.invalid { border-color: #6b7fd6; }
.auth-input::placeholder { color: var(--text-muted); }
.auth-input-icon {
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.98rem;
  color: #7d93a7;
  pointer-events: none;
}
.auth-input-toggle {
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: #7d93a7;
  font-size: 0.76rem;
  padding: 0;
  transition: color 0.22s ease, transform 0.22s ease;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.auth-input-toggle:hover { color: #2f6fb2; transform: translateY(-50%) translateX(-1px); }
.auth-field-hint  { font-size: 0.7rem; color: var(--text-muted); letter-spacing: 0.02em; }
.auth-field-error { font-size: 0.7rem; color: #5b6fcb; display: none; letter-spacing: 0.02em; }

/* 记住 / 忘记密码 行 */
.auth-row { display: flex; align-items: center; justify-content: space-between; }
.auth-checkbox-label {
  display: flex;
  align-items: center;
  gap: 9px;
  cursor: pointer;
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}
.auth-checkbox-label input[type="checkbox"] { width: 16px; height: 16px; accent-color: #2f6fb2; cursor: pointer; }
.auth-forgot {
  font-size: 0.76rem;
  color: #2f6fb2;
  text-decoration: none;
  transition: color 0.22s ease, opacity 0.22s ease;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.auth-forgot:hover { opacity: 0.9; color: #4f57b8; }

/* 提交按钮 */
.auth-submit {
  width: 100%;
  padding: 15px;
  background: linear-gradient(135deg, #2b6faf, #4f57b8);
  color: #eff8ff;
  font-weight: 800;
  font-size: 0.92rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: transform 0.24s ease, box-shadow 0.24s ease, filter 0.24s ease, background 0.24s ease;
  font-family: var(--font-main);
  letter-spacing: 0.13em;
  text-transform: uppercase;
}
.auth-submit:hover {
  background: linear-gradient(135deg, #4f57b8, #2b6faf);
  transform: translateY(-2px);
  box-shadow: 0 12px 26px rgba(43, 111, 175, 0.22);
  filter: brightness(1.03);
}
.auth-submit:active { transform: translateY(0); }

/* 分隔线 */
.auth-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.auth-divider::before,
.auth-divider::after { content: ''; flex: 1; height: 1px; background: #c7d7e3; }

/* 社交登录按钮 */
.auth-social { display: flex; gap: 10px; }
.auth-social-btn {
  flex: 1;
  padding: 12px;
  background: linear-gradient(180deg, #f7fbfe 0%, #eaf3f8 100%);
  border: 1px solid #c7d9e6;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color 0.24s ease, color 0.24s ease, transform 0.24s ease, background-color 0.24s ease, box-shadow 0.24s ease;
  font-family: var(--font-main);
  text-decoration: none;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}
.auth-social-btn:hover {
  border-color: #86b8cf;
  color: #2f6fb2;
  background: rgba(67, 179, 179, 0.08);
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(47, 111, 178, 0.1);
}

/* 切换链接 */
.auth-switch {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.8;
}
.auth-switch a {
  color: #2f6fb2;
  font-weight: 700;
  text-decoration: none;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}
.auth-switch a:hover { text-decoration: underline; }

/* 通知 / 提示 */
.auth-notice { padding: 13px 16px; border-radius: 8px; font-size: 0.78rem; display: none; line-height: 1.75; }
.auth-notice.error  { background: rgba(91, 111, 203, 0.1);  border: 1px solid rgba(91, 111, 203, 0.26);  color: #4458b2; display: block; }
.auth-notice.success { background: rgba(45, 159, 122, 0.1); border: 1px solid rgba(45, 159, 122, 0.24); color: #217a5d; display: block; }


/* =============================================
   注册专属 — signup.php
   ============================================= */

/* 注册布局右面板更宽 */
.auth-main-signup { grid-template-columns: 1fr 560px; }
.auth-form-wrap-wide { max-width: 450px; }

/* 进度步骤 */
.reg-steps { display: flex; align-items: center; gap: 0; margin-bottom: 30px; }
.reg-step { flex: 1; text-align: center; position: relative; }
.reg-step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 15px;
  right: -50%;
  width: 100%;
  height: 2px;
  background: #cad9e4;
  z-index: 0;
}
.reg-step.done:not(:last-child)::after,
.reg-step.active:not(:last-child)::after { background: #3a9fab; }
.reg-step-circle {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: #f2f8fc;
  border: 1px solid #c8d8e5;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.68rem;
  font-weight: 800;
  color: var(--text-muted);
  margin: 0 auto 10px;
  position: relative;
  z-index: 1;
  transition: all 0.3s ease;
}
.reg-step.active .reg-step-circle { background: #2f6fb2; border-color: #2f6fb2; color: #eef8ff; }
.reg-step.done  .reg-step-circle { background: rgba(67, 179, 179, 0.12); border-color: #3a9fab; color: #2a7f89; }

.reg-step-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.reg-step.active .reg-step-label { color: var(--primary); font-weight: 700; }

/* 手机号前缀 */
.phone-row { display: flex; gap: 14px; }
.phone-prefix {
  width: 96px;
  flex-shrink: 0;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 14px 14px;
  border-radius: 8px;
  font-size: 0.92rem;
  font-family: var(--font-main);
  transition: border-color 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease, transform 0.3s ease;
}
.phone-prefix:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(76, 143, 255, 0.16);
  background: #f3f8ff;
  transform: translateY(-1px);
}
.phone-row .auth-input-wrap { flex: 1; }

/* 验证码行 */
.verify-row { display: flex; gap: 14px; }
.verify-row .auth-input-wrap { flex: 1; }
.verify-btn {
  white-space: nowrap;
  padding: 0 20px;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--primary);
  cursor: pointer;
  transition: background-color 0.3s ease, border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
  font-family: var(--font-main);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.verify-btn:hover:not(:disabled) {
  border-color: var(--primary);
  background: rgba(76, 143, 255, 0.08);
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(32, 88, 144, 0.12);
}
.verify-btn:disabled { opacity: 0.5; cursor: not-allowed; color: var(--text-muted); }

/* 密码强度 */
.pwd-strength { margin-top: 12px; }
.pwd-strength-bar { display: flex; gap: 8px; margin-bottom: 8px; }
.pwd-strength-seg { flex: 1; height: 5px; background: var(--border); border-radius: 6px; transition: background 0.35s ease, transform 0.35s ease; }
.pwd-strength-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* 协议复选框 */
.auth-agree {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.9;
}
.auth-agree input[type="checkbox"] {
  width: 17px;
  height: 17px;
  accent-color: var(--primary);
  cursor: pointer;
  flex-shrink: 0;
  margin-top: 4px;
}
.auth-agree a {
  color: var(--primary);
  text-decoration: none;
  letter-spacing: 0.05em;
}
.auth-agree a:hover { text-decoration: underline; color: var(--text-primary); }


/* =============================================
   认证响应式
   ============================================= */

/* 登录: 双列布局 */
.auth-main {
  flex: 1;
  display: grid;
  grid-template-columns: 1.08fr 480px;
  min-height: calc(100vh - 80px);
}

@media (max-width: 900px) {
  .auth-main { grid-template-columns: 1fr; }
  .auth-left  { display: none; }
  .auth-right { border-left: none; min-height: calc(100vh - 64px); }
}

/* APP 页响应式 */
@media (max-width: 768px) {
  .app-mockup-grid    { grid-template-columns: 1fr; gap: 34px; }
  .qr-grid            { grid-template-columns: 1fr; }
  .install-steps      { grid-template-columns: repeat(2, 1fr); }
  .install-step:nth-child(2)::after { display: none; }
  .app-hero-stats     { gap: 22px; }
  .phone-visual       { gap: 12px; }
  .phone-frame        { width: 144px; }
  .phone-frame.large
  { width: 170px; }
  .auth-right         { padding: 30px 22px; }
}

@media (max-width: 480px) {
  .install-steps             { grid-template-columns: 1fr; }
  .install-step::after       { display: none !important; }
}

/* =============================================
   行动号召横幅
   ============================================= */
.cta-banner {
  background: linear-gradient(180deg, #eef6fb 0%, #dbeaf4 50%, #eef4f8 50%, #d6e5ef 100%);
  border-top: 1px solid #bfd2de;
  border-bottom: 1px solid #bfd2de;
  padding: 70px 0 66px;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 720px;
  height: 420px;
  background: radial-gradient(circle, rgba(88, 118, 214, 0.14) 0%, transparent 70%);
  pointer-events: none;
}
.cta-banner > .container { position: relative; z-index: 2; }
.cta-badge { margin-bottom: 20px; }
.cta-title { margin-bottom: 18px; }
.cta-desc {
  color: var(--text-secondary);
  margin: 0 auto 30px;
  max-width: 680px;
  line-height: 2;
  font-size: 1.04rem;
  font-weight: 500;
}
.cta-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

@media (max-width: 480px) {
  .cta-banner { padding: 50px 0; }
  .cta-btns { flex-direction: column; align-items: stretch; max-width: 320px; margin: 0 auto; }
}

/* 特性卡片网格 */
.feature-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0;
  margin-top: 44px;
}
.feature-mini-card {
  background: #eef5f9;
  border: 1px solid #c8d7e2;
  border-radius: 10px;
  padding: 28px 26px;
  box-shadow: 0 8px 18px rgba(33, 67, 102, 0.06);
  transition: transform .35s ease, border-color .35s ease, box-shadow .35s ease, background-color .35s ease;
}
.feature-mini-card:nth-child(even) {
  background: #ddeaf2;
}
.feature-mini-card:hover {
  transform: translateY(-3px);
  border-color: #6a8dbe;
  box-shadow: 0 14px 28px rgba(33, 67, 102, 0.12);
  background: #f4f9fc;
}
.feature-mini-card .feature-icon {
  font-size: 2.15rem;
  margin-bottom: 14px;
  color: #567ad4;
}

/* 体育项目 */
.sports-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 0;
}
.sport-card {
  background: #edf6f7;
  border-radius: 10px;
  padding: 30px 28px;
  border: 1px solid #c4d8da;
  box-shadow: 0 8px 18px rgba(27, 71, 78, 0.06);
}
.sport-card:nth-child(even) {
  background: #dff0f2;
}
.sport-icon { font-size: 2.7rem; color: #2f8f9d; }
.sport-meta {
  display: flex;
  justify-content: space-between;
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid #b8d1d5;
  color: var(--text-muted);
}

/* 步骤卡片 */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 0;
}
.step-card {
  position: relative;
  padding: 36px 26px;
  background: #edf2fb;
  border: 1px solid #c8d4ea;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 10px 20px rgba(45, 67, 117, 0.06);
}
.step-card:nth-child(even) {
  background: #e0e8f7;
}
.step-number {
  position: absolute;
  top: -12px; right: 14px;
  font-size: 3.2rem;
  font-weight: 800;
  color: #6f86d9;
  opacity: 0.2;
}
.lead-text {
  font-size: 1.02rem;
  line-height: 2;
  margin-bottom: 22px;
  color: var(--text-secondary);
}

/* 页脚联系信息 */
.footer-contact-inline {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 0;
  border: none;
  margin: 0;
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.92rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  transition: color var(--transition), padding-left var(--transition), transform var(--transition);

}

.footer-contact-item a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-contact-item:hover,
.footer-contact-item a:hover {
  color: var(--primary);
  padding-left: 6px;
}

.footer-contact-icon {
  font-size: 1rem;
  line-height: 1;
  flex-shrink: 0;
  color: var(--primary);
}

.footer-contact-sep {
  display: none;
}

/* ===== 用户评价 ===== */
.testimonials-intro{max-width:860px;margin:0 auto 30px;text-align:center;color:var(--text-secondary);font-size:1rem;line-height:1.95;}

.rating-overview{display:grid;grid-template-columns:220px 1fr;gap:0;background:#ecf4f8;border:1px solid #c4d5df;border-radius:12px;padding:28px;margin-bottom:34px;align-items:center;box-shadow:0 10px 22px rgba(35, 67, 86, 0.07);}
.rating-score{text-align:center;border-right:1px solid #c4d5df;padding-right:28px;}
.rating-num{font-size:3.7rem;font-weight:700;color:#4b71d8;line-height:1;}
.rating-stars{font-size:1.45rem;color:#4b71d8;margin:10px 0;letter-spacing:4px;}
.rating-total{font-size:.88rem;color:var(--text-muted);}
.rating-bars{display:flex;flex-direction:column;gap:12px;padding-left:28px;}
.rating-bar-row{display:grid;grid-template-columns:54px 1fr 54px;align-items:center;gap:14px;font-size:.92rem;color:var(--text-secondary);}
.rating-bar{height:12px;background:#dbe8ee;border-radius:8px;overflow:hidden;}
.rating-fill{height:100%;background:linear-gradient(90deg,#5bb7c9,#667ee8);border-radius:8px;transition:width .9s ease;}
.rating-percent{text-align:right;font-weight:700;color:var(--text-primary);}

.testimonials-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:0;}
.testimonial-card{background:#eef6fa;border:1px solid #cad9e2;border-radius:10px;padding:26px;box-shadow:0 8px 18px rgba(36, 68, 92, 0.06);transition:transform .35s ease,border-color .35s ease,box-shadow .35s ease,background-color .35s ease;}
.testimonial-card:nth-child(even){background:#e1edf4;}
.testimonial-card:hover{transform:translateY(-3px);border-color:rgba(90,122,208,.45);box-shadow:0 14px 28px rgba(36, 68, 92, 0.12);}
.testimonial-header{display:flex;align-items:center;gap:14px;margin-bottom:18px;}
.testimonial-avatar{width:52px;height:52px;border-radius:14px;background:linear-gradient(135deg,#63c6bf,#6176dd);display:flex;align-items:center;justify-content:center;font-size:1.45rem;color:#eef8ff;flex-shrink:0;}
.testimonial-user{flex:1;}
.testimonial-name{font-weight:700;color:var(--text-primary);font-size:1.02rem;}
.testimonial-region{font-size:.84rem;color:var(--text-muted);margin-top:3px;}
.testimonial-rating{color:#6176dd;font-size:1rem;letter-spacing:2px;}
.testimonial-title{font-size:1.04rem;color:var(--primary);margin:0 0 12px;font-weight:700;letter-spacing:.02em;}
.testimonial-content{font-size:.94rem;line-height:1.85;color:var(--text-secondary);margin:0 0 18px;}
.testimonial-footer{display:flex;justify-content:space-between;align-items:center;padding-top:14px;border-top:1px dashed #bfd0da;}
.testimonial-tag{background:rgba(95,126,221,.12);color:#4860b8;padding:5px 12px;border-radius:999px;font-size:.76rem;font-weight:700;letter-spacing:.04em;text-transform: uppercase;}
.testimonial-date{font-size:.82rem;color:var(--text-muted);}

@media(max-width:768px){
  .rating-overview{grid-template-columns:1fr;gap:20px;padding:22px;}
  .rating-score{border-right:none;border-bottom:1px solid #c4d5df;padding:0 0 20px;}
  .testimonials-grid{grid-template-columns:1fr;}
}