/* ============================================================
   a.css —— 协议页面液态玻璃主题（全组件毛玻璃 + 导航栏颜色修正）
   ============================================================ */

:root {
  --g-bg-glass: rgba(255, 255, 255, 0.72);
  --g-bg-glass-dark: rgba(255, 255, 255, 0.08);
  --g-blur: 14px;
  --g-saturate: 170%;
  --g-border: rgba(0, 0, 0, 0.1);
  --g-border-dark: rgba(255, 255, 255, 0.15);
  --g-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  --g-shadow-dark: 0 8px 32px rgba(0, 0, 0, 0.45);
  --g-highlight: inset 0 1px 2px rgba(255, 255, 255, 0.5);
  --g-highlight-dark: inset 0 1px 2px rgba(255, 255, 255, 0.24);
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --primary: #6366f1;
  --primary-light: #a5b4fc;
  --primary-dark: #4f46e5;
  --secondary: #38bdf8;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  --bg-main: #eef1f6;
}

body.dark {
  --g-bg-glass: var(--g-bg-glass-dark);
  --g-border: var(--g-border-dark);
  --g-highlight: var(--g-highlight-dark);
  --g-shadow: var(--g-shadow-dark);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --bg-main: #0c0c12;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{width:100%;-webkit-text-size-adjust:100%;}
body{
  width:100%;min-height:100vh;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  line-height:1.6;
  background-color: var(--bg-main);
  background-image:
	radial-gradient(circle at 20% 30%, rgba(80, 120, 255, 0.12) 0%, transparent 650px),
	radial-gradient(circle at 80% 70%, rgba(200, 80, 220, 0.08) 0%, transparent 650px);
  background-attachment: fixed;
  color: var(--text-primary);
  transition: var(--transition);
  padding-top: 105px;
  overflow-x: hidden;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}

/* ===== 顶部导航栏（与 main.css 完全一致） ===== */
header {
  position: fixed;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  width: min(980px, 94%);
  height: 56px;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  background: var(--g-bg-glass);
  backdrop-filter: blur(var(--g-blur)) saturate(var(--g-saturate));
  -webkit-backdrop-filter: blur(var(--g-blur)) saturate(var(--g-saturate));
  border: 1px solid var(--g-border);
  border-radius: 999px;
  box-shadow: var(--g-shadow), var(--g-highlight);
  transition: var(--transition);
  isolation: isolate;
  overflow: hidden;
}
header .logo-link {
  display: flex;
  align-items: center;
  height: 100%;
  padding: 6px 10px;
  border-radius: 999px;
  transition: background 0.2s;
  flex-shrink: 0;
}
header .logo-link:hover { background: rgba(255, 255, 255, 0.1); }
header .logo-img {
  height: 34px;
  max-width: 140px;
  border-radius: 8px;
  filter: brightness(0) saturate(100%);
  transition: transform 0.3s ease, filter 0.3s ease;
}
header .logo-img:hover { transform: scale(1.04); filter: brightness(0.3) saturate(100%); }
body.dark header .logo-img { filter: brightness(0) invert(1) saturate(100%); }
body.dark header .logo-img:hover { filter: brightness(0.3) invert(1) saturate(100%); }

.nav-links { display: flex; align-items: center; gap: 4px; }

/* 普通链接：灰色，hover/active 保持灰色，无背景 */
.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  padding: 6px 12px;
  border-radius: 0;
  white-space: nowrap;
  transition: color 0.2s;
  background: transparent;
  border: none;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--text-secondary);
  background: transparent;
  border: none;
}

/* 带 .capsule 类的链接：hover/active 显示紫色 */
.nav-links a.capsule {
  background: var(--g-bg-glass);
  backdrop-filter: blur(var(--g-blur)) saturate(var(--g-saturate));
  -webkit-backdrop-filter: blur(var(--g-blur)) saturate(var(--g-saturate));
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 6px 12px;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}
.nav-links a.capsule:hover,
.nav-links a.capsule.active {
  color: var(--primary);
  background: rgba(99, 102, 241, 0.10);
  border-color: var(--g-border);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

#user_name_gui {
  font-size: 0.82rem;
  color: var(--text-muted);
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--g-bg-glass);
  backdrop-filter: blur(var(--g-blur)) saturate(var(--g-saturate));
  border: 1px solid var(--g-border);
}

.theme-toggle {
  background: transparent;
  border: 1px solid var(--g-border);
  border-radius: 50%;
  width: 34px;
  height: 34px;
  display: flex !important;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: var(--g-highlight);
  margin: 0 4px;
  flex-shrink: 0;
}
.theme-toggle:hover { background: rgba(255, 255, 255, 0.15); color: var(--text-primary); border-color: var(--text-primary); transform: scale(1.06); }
body.dark .theme-toggle:hover { background: rgba(255, 255, 255, 0.05); }

/* ===== 协议主体内容（全组件毛玻璃） ===== */
.agreement-wrapper {
  max-width: 890px;
  width: 90%;
  margin: 0 auto 60px;
  padding: 20px 0;
  position: relative;
  z-index: 10;
}

/* 主卡片：强毛玻璃容器 */
.agreement-card {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(24px) saturate(190%);
  -webkit-backdrop-filter: blur(24px) saturate(190%);
  border: 1px solid var(--g-border);
  box-shadow: var(--g-shadow), var(--g-highlight);
  border-radius: var(--radius-md);
  padding: 40px;
  margin-bottom: 30px;
  max-height: 88vh;
  overflow-y: auto;
  transition: var(--transition);
}
.agreement-card::-webkit-scrollbar { width: 8px; }
.agreement-card::-webkit-scrollbar-track { background: rgba(255,255,255,0.06); border-radius: 10px; }
.agreement-card::-webkit-scrollbar-thumb { background: rgba(99,102,241,0.28); border-radius: 10px; }

/* 标题：独立玻璃背景 */
.agreement-title {
  font-size: 2rem;
  font-weight: 750;
  color: var(--text-primary);
  margin-bottom: 18px;
  padding: 18px 22px;
  border-bottom: 2px solid var(--g-border);
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--g-bg-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: 14px;
}
.agreement-title i { color: var(--primary); font-size: 1.9rem; }

/* 副标题：独立玻璃背景 */
.agreement-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-weight: 330;
  margin-bottom: 32px;
  padding: 11px 19px;
  background: var(--g-bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 12px;
  display: inline-block;
  margin-left: auto;
  margin-right: auto;
}

/* 内容区域：整块毛玻璃，让所有正文、列表都带有玻璃质感 */
.agreement-content {
  padding-top: 14px;
  font-size: 1.1rem;
  color: var(--text-primary);
  line-height: 1.85;
  background: rgba(255, 255, 255, 0.045);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 12px;
  padding: 16px 20px;
  margin-top: 10px;
}
.agreement-content h2 {
  font-size: 1.43rem;
  color: var(--primary);
  margin: 27px 0 16px 0;
  border-left: 5px solid var(--primary);
  padding-left: 12px;
  background: var(--g-bg-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: 0 9px 9px 0;
  padding: 9px 14px;
}
.agreement-content h3 {
  font-size: 1.21rem;
  color: var(--text-primary);
  margin: 22px 0 11px 0;
}
.agreement-content p { margin-bottom: 16px; text-align: justify; }
.agreement-content ul, .agreement-content ol {
  margin: 16px 0;
  padding-left: 28px;
  color: var(--text-secondary);
}
.agreement-content li { margin-bottom: 11px; }
.agreement-content a { color: var(--primary); font-weight: 530; }
.agreement-content a:hover { text-decoration: underline; }

/* 通知框：暖色半透明玻璃 */
.notice-box {
  background: rgba(245, 205, 142, 0.16);
  border: 1px solid rgba(251, 191, 57, 0.39);
  border-radius: var(--radius-sm);
  padding: 17px;
  margin: 22px 0;
  font-size: 1rem;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  color: var(--text-primary);
}
body.dark .notice-box {
  background: rgba(184, 122, 50, 0.22);
  border-color: rgba(147, 67, 17, 0.47);
  color: #fef3c7;
}

/* 返回按钮 */
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  padding: 13px 30px;
  border-radius: var(--radius-sm);
  font-weight: 630;
  margin-top: 27px;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  box-shadow: 0 5px 16px rgba(99,102,241,0.23);
  backdrop-filter: blur(5px);
}
.back-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 7px 22px rgba(99,102,241,0.34);
}

/* 返回顶部按钮 */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 22px;
  background: var(--g-bg-glass);
  color: var(--text-primary);
  width: 53px;
  height: 53px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--g-shadow), var(--g-highlight);
  cursor: pointer;
  opacity: 0.87;
  transition: all 0.3s ease;
  z-index: 101;
  border: 1px solid var(--g-border);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.back-to-top:hover {
  background: rgba(255,255,255,0.27);
  transform: translateY(-3px);
  opacity: 1;
  color: var(--primary);
}

/* ===== 底部信息栏 ===== */
footer {
  text-align: center;
  padding: 34px 24px 28px;
  color: var(--text-muted);
  font-size: 0.83rem;
  margin-top: auto;
  background: var(--g-bg-glass);
  backdrop-filter: blur(var(--g-blur)) saturate(var(--g-saturate));
  -webkit-backdrop-filter: blur(var(--g-blur)) saturate(var(--g-saturate));
  border-top: 1px solid var(--g-border);
  box-shadow: var(--g-highlight);
  position: relative;
  z-index: 10;
}
.footer-links a {
  color: var(--text-muted);
  margin: 0 12px;
  transition: color 0.2s;
  font-weight: 435;
}
.footer-links a:hover {
  color: var(--text-primary);
  text-decoration: underline;
}
.copyright { margin-top: 8px; font-size: 0.795rem; line-height: 1.61; }
footer a[style] { color: #9a9797 !important; font-size: 12px; }

/* ===== 响应式 ===== */
@media (max-width: 840px) {
  body { padding-top: 114px; }
  header { height: 52px; padding: 0 13px; top: 12px; }
  header .logo-img { height: 30px; max-width: 119px; }
  .nav-links a { font-size: 0.845rem; padding: 5px 9px; }
  .agreement-card { padding: 28px 20px; }
  .agreement-title { font-size: 1.635rem; padding: 14px 16px; }
  .agreement-content { font-size: 1.035rem; padding: 14px 16px; }
}
@media (max-width: 555px) {
  .nav-links a span { display: none; }
  .nav-links a { padding: 5px 7px; font-size: 0.925rem; }
  .agreement-card { padding: 20px 14px; }
  .agreement-content { padding: 12px 14px; }
}