/* ==================== CSS 变量 ==================== */
:root {
  --primary: #1a6ff5;
  --primary-dark: #0d4fbf;
  --primary-light: #e8f1fe;
  --primary-lighter: #f0f6ff;
  --accent: #6c5ce7;
  --warning: #fa8c16;
  --warning-light: #fff7e6;
  --danger: #f5222d;
  --danger-light: #fff1f0;
  --success: #52c41a;
  --success-light: #f6ffed;

  --bg: #f5f7fb;
  --bg-card: #ffffff;
  --bg-dark: #0a0e27;
  --bg-dark-2: #111638;

  --text: #1a1a2e;
  --text-secondary: #4b5563;
  --text-muted: #9ca3af;
  --text-light: #ffffff;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow: 0 2px 8px rgba(0,0,0,0.08), 0 1px 3px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08), 0 2px 6px rgba(0,0,0,0.04);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
  --shadow-xl: 0 12px 40px rgba(0,0,0,0.15);

  --radius: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --radius-xs: 6px;

  --max-width: 1200px;
  --nav-height: 64px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==================== Reset ==================== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--nav-height); }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

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

/* ==================== 按钮 ==================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(26,111,245,0.35);
}
.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 6px 20px rgba(26,111,245,0.45);
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent;
  color: var(--text-light);
  border: 2px solid rgba(255,255,255,0.4);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.8);
}
.btn-white {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 4px 14px rgba(0,0,0,0.2);
}
.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
}
.btn-lg { padding: 14px 32px; font-size: 16px; }
.btn-block { width: 100%; }

/* ==================== 导航栏 ==================== */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  z-index: 1000;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
  transition: all var(--transition);
}
#navbar.scrolled {
  background: rgba(255,255,255,0.95);
  box-shadow: var(--shadow);
}
.nav-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 18px;
  color: var(--text);
}
.logo-icon {
  width: 36px; height: 36px;
  display: block;
  border-radius: 10px;
  overflow: hidden;
}
.logo-icon img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.logo-text { background: linear-gradient(135deg, var(--primary), var(--accent)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.logo-subtitle { font-size: 9px; font-weight: 600; color: var(--text-secondary); white-space: nowrap; letter-spacing: 0.5px; }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-link {
  padding: 8px 14px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-xs);
  transition: all var(--transition);
  position: relative;
}
.nav-link:hover { color: var(--primary); background: var(--primary-light); }
.nav-link.active { color: var(--primary); background: var(--primary-light); }
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px; left: 50%;
  transform: translateX(-50%);
  width: 16px; height: 3px;
  background: var(--primary);
  border-radius: 2px;
}
.nav-cta {
  background: var(--primary);
  color: #fff !important;
  padding: 8px 20px;
  border-radius: var(--radius-sm);
  box-shadow: 0 2px 8px rgba(26,111,245,0.3);
}
.nav-cta:hover { background: var(--primary-dark); color: #fff !important; }
.nav-cta.active::after { display: none; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  width: 24px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ==================== Hero ==================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 24px 40px;
  overflow: hidden;
  background: linear-gradient(135deg, #0a0e27 0%, #111638 40%, #0d2a5e 70%, #0a1f4e 100%);
  color: #fff;
}
.hero-bg { position: absolute; inset: 0; overflow: hidden; }
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(26,111,245,0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26,111,245,0.08) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}
.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
}
.hero-glow-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, var(--primary), transparent 70%);
  top: -100px; left: 10%;
}
.hero-glow-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, var(--accent), transparent 70%);
  bottom: -50px; right: 15%;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 760px;
}
.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 50px;
  font-size: 14px;
  font-weight: 500;
  color: rgba(255,255,255,0.9);
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
}
.gradient-text {
  background: linear-gradient(135deg, #60a5fa, #818cf8, #c084fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-title {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -1px;
}
.hero-desc {
  font-size: clamp(15px, 2vw, 18px);
  color: rgba(255,255,255,0.7);
  line-height: 1.8;
  margin-bottom: 36px;
}
.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 60px;
}
.hero-stats {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 20px 40px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
}
.stat-item { text-align: center; padding: 0 24px; }
.stat-num {
  font-size: 32px;
  font-weight: 800;
  color: #fff;
  font-family: 'SF Mono', 'Fira Code', monospace;
}
.stat-num::after { content: attr(data-suffix); }
.stat-label { font-size: 13px; color: rgba(255,255,255,0.6); margin-top: 2px; }
.stat-divider { width: 1px; height: 36px; background: rgba(255,255,255,0.15); }

.hero-scroll {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: rgba(255,255,255,0.5);
}
.scroll-arrow {
  width: 20px; height: 32px;
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 12px;
  position: relative;
}
.scroll-arrow::after {
  content: '';
  position: absolute;
  top: 6px; left: 50%;
  transform: translateX(-50%);
  width: 4px; height: 8px;
  background: rgba(255,255,255,0.5);
  border-radius: 2px;
  animation: scrollDown 1.5s infinite;
}
@keyframes scrollDown {
  0% { opacity: 1; top: 6px; }
  100% { opacity: 0; top: 18px; }
}

/* ==================== Section ==================== */
.section {
  padding: 80px 0;
  position: relative;
}
.section-alt { background: var(--bg); }
.section-gradient {
  background: linear-gradient(135deg, #0a0e27 0%, #11235e 50%, #0a1f4e 100%);
  color: #fff;
}
.section-header {
  text-align: center;
  margin-bottom: 48px;
}
.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--primary);
  margin-bottom: 12px;
}
.section-gradient .section-tag { color: #60a5fa; }
.section-title {
  font-size: clamp(24px, 3.5vw, 36px);
  font-weight: 800;
  margin-bottom: 8px;
}
.section-gradient .section-title { color: #fff; }
.section-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
}
.section-gradient .section-subtitle { color: rgba(255,255,255,0.6); }

/* ==================== 公司介绍 ==================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 32px;
  align-items: start;
}
.about-main { display: flex; flex-direction: column; gap: 20px; }
.about-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  border: 1px solid rgba(0,0,0,0.04);
}
.about-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.about-icon {
  font-size: 36px;
  margin-bottom: 12px;
}
.about-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}
.about-card p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.8;
}
.advantage-card {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: var(--radius);
  padding: 32px;
  color: #fff;
  box-shadow: 0 8px 24px rgba(26,111,245,0.3);
  position: sticky;
  top: 80px;
}
.adv-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 20px;
}
.adv-list li {
  display: flex;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,0.15);
}
.adv-list li:last-child { border-bottom: none; }
.adv-num {
  font-size: 18px;
  font-weight: 800;
  color: rgba(255,255,255,0.4);
  font-family: 'SF Mono', monospace;
  flex-shrink: 0;
}
.adv-list strong { font-size: 15px; font-weight: 600; }
.adv-list p { font-size: 13px; color: rgba(255,255,255,0.7); margin-top: 2px; }

/* ==================== 贷款产品 ==================== */
.product-filters {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.filter-btn {
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 500;
  border: 2px solid var(--primary-light);
  background: #fff;
  color: var(--text-secondary);
  border-radius: 50px;
  cursor: pointer;
  transition: all var(--transition);
}
.filter-btn:hover { border-color: var(--primary); color: var(--primary); }
.filter-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
}
.product-more-wrap { text-align: center; margin-top: 32px; }
.product-more-btn {
  display: inline-block;
  padding: 12px 36px;
  font-size: 15px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-light);
  border: 2px solid var(--primary);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
}
.product-more-btn:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(26,111,245,0.35);
}
.product-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(0,0,0,0.04);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.product-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}
.product-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.product-card.hide { display: none; }
.product-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}
.product-name {
  font-size: 20px;
  font-weight: 700;
}
.product-bank {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}
.product-tag {
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 50px;
  white-space: nowrap;
}
.tag-credit { background: var(--primary-light); color: var(--primary); }
.tag-business { background: var(--warning-light); color: var(--warning); }
.tag-mortgage { background: #fef0f7; color: #eb2f96; }
.tag-fund { background: var(--success-light); color: var(--success); }
.product-rate {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(0,0,0,0.06);
}
.rate-label { font-size: 13px; color: var(--text-muted); }
.rate-value {
  font-size: 28px;
  font-weight: 800;
  color: var(--danger);
}
.rate-unit { font-size: 14px; color: var(--text-muted); }
.product-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}
.meta-item { font-size: 13px; }
.meta-label { color: var(--text-muted); }
.meta-value { font-weight: 600; color: var(--text); margin-top: 2px; }
.product-features {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}
.feat-tag {
  padding: 3px 10px;
  font-size: 12px;
  background: var(--bg);
  color: var(--text-secondary);
  border-radius: 4px;
}
.product-cta {
  display: block;
  text-align: center;
  padding: 10px;
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  margin-top: auto;
}
.product-cta:hover {
  background: var(--primary);
  color: #fff;
}

/* ==================== 贷款知识 ==================== */
.knowledge-layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 32px;
  align-items: start;
}
.knowledge-featured {
  background: linear-gradient(135deg, #1a6ff5, #6c5ce7);
  border-radius: var(--radius);
  padding: 36px;
  color: #fff;
  position: sticky;
  top: 80px;
  box-shadow: 0 8px 24px rgba(26,111,245,0.3);
}
.knowledge-featured-tag {
  display: inline-block;
  padding: 4px 12px;
  background: rgba(255,255,255,0.2);
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 16px;
}
.knowledge-featured h3 {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 12px;
}
.knowledge-featured p {
  font-size: 14px;
  color: rgba(255,255,255,0.8);
  line-height: 1.7;
  margin-bottom: 16px;
}
.knowledge-featured-list li {
  padding: 6px 0;
  font-size: 14px;
  color: rgba(255,255,255,0.9);
}
.knowledge-featured .btn-primary {
  background: #fff;
  color: var(--primary);
  margin-top: 16px;
}
.knowledge-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.knowledge-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow);
  display: flex;
  gap: 16px;
  transition: all var(--transition);
  border: 1px solid rgba(0,0,0,0.04);
  cursor: pointer;
}
.knowledge-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.k-icon {
  font-size: 32px;
  flex-shrink: 0;
  width: 48px; height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  border-radius: var(--radius-sm);
}
.k-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 4px;
}
.k-body h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
  line-height: 1.4;
}
.k-body p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==================== 智能助贷系统 ==================== */
.system-flow {
  display: flex;
  align-items: stretch;
  gap: 8px;
  margin-bottom: 48px;
  flex-wrap: wrap;
  justify-content: center;
}
.flow-step {
  flex: 1;
  min-width: 200px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  backdrop-filter: blur(10px);
  transition: all var(--transition);
}
.flow-step:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-4px);
}
.flow-icon { font-size: 40px; margin-bottom: 12px; }
.flow-num {
  font-size: 13px;
  font-weight: 600;
  color: #60a5fa;
  margin-bottom: 8px;
}
.flow-step h4 {
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.flow-step p {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  line-height: 1.6;
}
.flow-arrow {
  display: flex;
  align-items: center;
  font-size: 24px;
  color: rgba(255,255,255,0.3);
}

.system-features {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
  margin-bottom: 40px;
}
.sys-feature {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: all var(--transition);
}
.sys-feature:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-2px);
}
.sf-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 12px;
}
.sf-blue { background: rgba(26,111,245,0.2); }
.sf-orange { background: rgba(250,140,22,0.2); }
.sf-red { background: rgba(245,34,45,0.2); }
.sf-green { background: rgba(82,196,26,0.2); }
.sf-purple { background: rgba(108,92,231,0.2); }
.sf-teal { background: rgba(20,184,166,0.2); }
.sys-feature h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}
.sys-feature p {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  line-height: 1.6;
}
.system-cta {
  text-align: center;
}
.system-note {
  font-size: 13px;
  color: rgba(255,255,255,0.4);
  margin-top: 12px;
}

/* ==================== 大数据评估 ==================== */
.bigdata-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 32px;
}
.bd-chart-card, .bd-info-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(0,0,0,0.04);
}
.bd-card-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
}
.radar-chart { display: flex; justify-content: center; }
.radar-svg { width: 100%; max-width: 340px; height: auto; }
.radar-label {
  font-size: 12px;
  fill: var(--text-secondary);
  font-weight: 600;
}
.radar-data {
  transition: all 1s ease;
}
.radar-dot {
  transition: r 0.8s ease 0.3s;
}

.bd-model-list { display: flex; flex-direction: column; gap: 16px; }
.bd-model-item { }
.bdm-header { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; }
.bdm-icon { font-size: 18px; }
.bdm-header strong { font-size: 15px; font-weight: 600; }
.bd-model-item p {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.bdm-bar {
  height: 8px;
  background: var(--bg);
  border-radius: 4px;
  overflow: hidden;
}
.bdm-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 4px;
  transition: width 1.2s ease;
}
.bd-result-box {
  margin-top: 24px;
  padding: 20px;
  background: var(--success-light);
  border-radius: var(--radius-md);
  border: 1px solid rgba(82,196,26,0.2);
}
.bd-result-label {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.bd-result-grade {
  display: flex;
  align-items: center;
  gap: 12px;
}
.grade-badge {
  padding: 4px 14px;
  font-size: 18px;
  font-weight: 800;
  border-radius: var(--radius-sm);
}
.grade-a { background: var(--success); color: #fff; }
.grade-desc { font-size: 14px; font-weight: 600; color: var(--success); }

.bigdata-features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.bd-feat {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0,0,0,0.04);
  transition: all var(--transition);
}
.bd-feat:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}
.bd-feat-icon { font-size: 28px; display: block; margin-bottom: 8px; }
.bd-feat strong { font-size: 15px; font-weight: 700; display: block; }
.bd-feat p { font-size: 13px; color: var(--text-muted); }

/* ==================== 贷款案例 ==================== */
.case-carousel {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
}
.case-slide {
  display: none;
  animation: caseFadeIn 0.5s ease;
}
.case-slide.active {
  display: block;
}
@keyframes caseFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.case-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 20px;
}
.case-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  padding: 0;
}
.case-dot.active {
  background: var(--primary);
  width: 28px;
  border-radius: 5px;
}
.case-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(0,0,0,0.04);
  display: grid;
  grid-template-columns: 200px 1fr 200px;
  gap: 32px;
  align-items: center;
  transition: all var(--transition);
}
.case-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}
.case-profile {
  text-align: center;
  padding: 20px;
  background: var(--bg);
  border-radius: var(--radius-md);
}
.case-avatar {
  width: 56px; height: 56px;
  margin: 0 auto 8px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  background: var(--primary-light);
}
.case-profile-name { font-size: 16px; font-weight: 700; }
.case-profile-info { font-size: 13px; color: var(--text-muted); margin-top: 2px; }

.case-detail h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}
.case-detail p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 12px;
}
.case-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.case-tag {
  padding: 3px 10px;
  font-size: 12px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 4px;
  font-weight: 500;
}

.case-result {
  text-align: center;
  padding: 20px;
  background: linear-gradient(135deg, var(--success-light), #e8f5e9);
  border-radius: var(--radius-md);
  border: 1px solid rgba(82,196,26,0.15);
}
.case-result-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.case-result-amount {
  font-size: 24px;
  font-weight: 800;
  color: var(--success);
}
.case-result-rate {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 4px;
}
.case-result-time {
  font-size: 12px;
  color: var(--success);
  margin-top: 6px;
  font-weight: 600;
}

/* ==================== 联系/CTA ==================== */
.contact-section { padding: 60px 0 80px; }
.contact-card {
  background: linear-gradient(135deg, #1a6ff5, #6c5ce7);
  border-radius: var(--radius);
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  box-shadow: 0 12px 40px rgba(26,111,245,0.25);
}
.contact-left h2 {
  font-size: 28px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}
.contact-left p {
  font-size: 15px;
  color: rgba(255,255,255,0.8);
  margin-bottom: 24px;
  line-height: 1.7;
}
.contact-info { display: flex; flex-direction: column; gap: 16px; }
.ci-item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255,255,255,0.9);
}
.ci-icon {
  width: 40px; height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.15);
  border-radius: var(--radius-sm);
  font-size: 18px;
  flex-shrink: 0;
}
.ci-item strong { font-size: 14px; font-weight: 600; }
.ci-item p { font-size: 14px; color: rgba(255,255,255,0.7); margin: 0; }

.contact-form {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}
.contact-form .form-group { margin-bottom: 14px; }
.contact-form label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}
.required { color: var(--danger); }
.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 10px 14px;
  font-size: 14px;
  border: 2px solid #e5e7eb;
  border-radius: var(--radius-xs);
  transition: all var(--transition);
  font-family: inherit;
  outline: none;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,111,245,0.1);
}
.contact-form .btn-block { margin-top: 8px; }
.cf-product-display {
  background: linear-gradient(135deg, rgba(37,99,235,0.08), rgba(6,182,212,0.08));
  border: 1px solid rgba(37,99,235,0.2);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 14px;
}
.form-tip {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 8px;
}

/* ==================== 页脚 ==================== */
.footer {
  background: #0a0e1a;
  color: rgba(255,255,255,0.7);
  padding: 48px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}
.footer-brand p {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  line-height: 1.7;
  margin-bottom: 16px;
}
.footer-info { display: flex; flex-direction: column; gap: 8px; }
.footer-info li {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  font-size: 13px;
  color: rgba(255,255,255,0.65);
  line-height: 1.6;
}
.footer-info li span { flex-shrink: 0; }

.footer-qr { display: flex; justify-content: center; }
.qr-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 12px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
}
.qr-card img {
  width: 90px;
  height: 90px;
  object-fit: contain;
  background: #fff;
  border-radius: 6px;
  padding: 4px;
}
.qr-label {
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  margin-top: 4px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

/* ==================== 回到顶部 ==================== */
.back-to-top {
  position: fixed;
  bottom: 32px; right: 32px;
  width: 44px; height: 44px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 20px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(26,111,245,0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition);
  z-index: 999;
}
.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

/* ==================== 滚动动画 ==================== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease var(--delay, 0s), transform 0.6s ease var(--delay, 0s);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==================== 响应式 ==================== */
@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; }
  .advantage-card { position: static; }
  .knowledge-layout { grid-template-columns: 1fr; }
  .knowledge-featured { position: static; }
  .knowledge-list { grid-template-columns: 1fr; }
  .bigdata-grid { grid-template-columns: 1fr; }
  .bigdata-features { grid-template-columns: repeat(2, 1fr); }
  .case-card { grid-template-columns: 1fr; text-align: center; }
  .case-tags { justify-content: center; }
  .contact-card { grid-template-columns: 1fr; padding: 32px; }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    position: fixed;
    top: var(--nav-height);
    left: 0; right: 0;
    flex-direction: column;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(12px);
    padding: 16px;
    gap: 4px;
    box-shadow: var(--shadow);
    transform: translateY(-150%);
    transition: transform var(--transition);
  }
  .nav-menu.active { transform: translateY(0); }
  .nav-link { padding: 12px 16px; width: 100%; }

  /* Hero 瘦身 */
  .hero { min-height: auto; padding: 80px 16px 32px; }
  .hero-badge { font-size: 12px; padding: 4px 12px; margin-bottom: 16px; }
  .hero-title { font-size: 26px; margin-bottom: 14px; }
  .hero-desc { font-size: 14px; margin-bottom: 24px; line-height: 1.6; }
  .hero-actions { flex-direction: column; width: 100%; gap: 10px; margin-bottom: 32px; }
  .hero-actions .btn { width: 100%; }
  .hero-stats { flex-wrap: wrap; gap: 8px; padding: 12px 16px; }
  .stat-item { padding: 6px 12px; }
  .stat-num { font-size: 22px; }
  .stat-label { font-size: 11px; }
  .stat-divider { display: none; }
  .hero-scroll { display: none; }

  /* Section 间距缩减 */
  .section { padding: 40px 0; }
  .section-header { margin-bottom: 24px; }
  .section-tag { font-size: 11px; margin-bottom: 8px; }
  .section-title { font-size: 22px; }
  .section-subtitle { font-size: 14px; }
  .container { padding: 0 16px; }

  /* 产品区 */
  .product-filters { gap: 6px; margin-bottom: 20px; }
  .filter-btn { padding: 6px 14px; font-size: 13px; }
  .product-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .product-card { padding: 14px 10px; }
  .product-name { font-size: 14px; }
  .product-bank { font-size: 11px; }
  .rate-value { font-size: 18px; }
  .product-meta { gap: 8px; }
  .meta-value { font-size: 12px; }
  .product-features { gap: 4px; }
  .feat-tag { font-size: 10px; padding: 2px 6px; }
  .product-cta { font-size: 12px; padding: 6px; }
  .product-more-wrap { margin-top: 20px; }
  .product-more-btn { padding: 10px 28px; font-size: 14px; }

  /* 智能助贷系统 */
  .system-flow { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
  .flow-arrow { display: none; }
  .flow-step { padding: 14px 10px; }
  .flow-icon { font-size: 24px; margin-bottom: 6px; }
  .flow-num { font-size: 11px; margin-bottom: 4px; }
  .flow-step h4 { font-size: 13px; margin-bottom: 4px; }
  .flow-step p { font-size: 11px; line-height: 1.5; }
  .system-features { grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 28px; }
  .sys-feature { padding: 14px 10px; }
  .sf-icon { width: 36px; height: 36px; font-size: 18px; margin-bottom: 8px; }
  .sys-feature h4 { font-size: 13px; margin-bottom: 4px; }
  .sys-feature p { font-size: 11px; line-height: 1.5; }

  /* 大数据评估 */
  .bigdata-grid { grid-template-columns: 1fr; gap: 20px; }
  .bigdata-features { grid-template-columns: 1fr 1fr; gap: 10px; }
  .bd-feat { padding: 14px 10px; }
  .bd-feat-icon { font-size: 22px; }
  .bd-feat strong { font-size: 13px; }
  .bd-feat p { font-size: 11px; }
  .radar-svg { max-width: 260px; }
  .bd-model-item p { font-size: 12px; }

  /* 贷款案例 */
  .case-card { padding: 18px; gap: 16px; }
  .case-avatar { width: 44px; height: 44px; font-size: 20px; }
  .case-detail h4 { font-size: 15px; }
  .case-detail p { font-size: 13px; line-height: 1.6; margin-bottom: 8px; }
  .case-result-amount { font-size: 20px; }

  /* 联系/CTA */
  .contact-section { padding: 40px 0; }
  .contact-card { padding: 24px; gap: 24px; }
  .contact-left h2 { font-size: 20px; margin-bottom: 8px; }
  .contact-left p { font-size: 13px; margin-bottom: 16px; }
  .contact-info { gap: 10px; }
  .ci-icon { width: 32px; height: 32px; font-size: 15px; }
  .ci-item strong { font-size: 13px; }
  .ci-item p { font-size: 12px; }
  .contact-form { padding: 18px; }
  .contact-form input,
  .contact-form select,
  .contact-form textarea { padding: 8px 12px; font-size: 13px; }

  /* 公司介绍 */
  .about-card { padding: 18px; }
  .about-card h3 { font-size: 17px; }
  .about-card p { font-size: 13px; line-height: 1.6; }
  .about-icon { font-size: 28px; margin-bottom: 8px; }
  .advantage-card { padding: 20px; }
  .adv-title { font-size: 17px; margin-bottom: 14px; }
  .adv-list li { padding: 10px 0; gap: 12px; }
  .adv-num { font-size: 15px; }
  .adv-list strong { font-size: 14px; }
  .adv-list p { font-size: 12px; }

  /* 页脚 */
  .footer { padding: 28px 0 14px; }
  .footer-grid { grid-template-columns: 1fr 1fr 1fr; gap: 12px; align-items: start; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-brand p { font-size: 12px; }
  .footer-info li { font-size: 11px; }
  .qr-card { padding: 8px; }
  .qr-card img { width: 70px; height: 70px; }
  .qr-label { font-size: 11px; }
  .footer-bottom { padding-top: 14px; }
  .footer-bottom p { font-size: 11px; line-height: 1.5; }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
  .footer-brand { grid-column: 1 / -1; }
  .qr-card img { width: 64px; height: 64px; }
  .stat-num { font-size: 20px; }
  .hero-title { font-size: 22px; }
  .section-title { font-size: 20px; }
  .product-card { padding: 12px 8px; }
  .case-card { padding: 16px; }
  .contact-card { padding: 20px; }
  .about-card { padding: 16px; }
}

/* ==================== 手机端悬浮咨询按钮+弹窗 ==================== */
.contact-fab {
  display: none;
}
.contact-modal-overlay {
  display: none;
}

@media (max-width: 768px) {
  /* 隐藏原始contact section */
  .contact-section { display: none; }

  /* 悬浮按钮 */
  .contact-fab {
    display: flex;
    align-items: center;
    gap: 6px;
    position: fixed;
    top: 50%;
    right: 0;
    transform: translateY(-50%);
    z-index: 900;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    border: none;
    border-radius: 28px 0 0 28px;
    padding: 14px 16px 14px 20px;
    font-size: 14px;
    font-weight: 700;
    box-shadow: -4px 4px 16px rgba(37,99,235,0.4);
    cursor: pointer;
    transition: all .25s;
    animation: fabPulse 2s ease-in-out infinite;
    writing-mode: vertical-rl;
    text-orientation: upright;
    letter-spacing: 2px;
  }
  .contact-fab:active { transform: scale(0.95); }
  .fab-icon { font-size: 18px; }

  @keyframes fabPulse {
    0%, 100% { box-shadow: -4px 4px 16px rgba(37,99,235,0.4); }
    50% { box-shadow: -4px 4px 24px rgba(37,99,235,0.65); }
  }

  /* 弹窗遮罩 */
  .contact-modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding: 20px 12px;
  }
  .contact-modal-overlay.active {
    display: block;
  }
  .contact-modal {
    background: #fff;
    border-radius: 16px;
    padding: 20px 16px;
    position: relative;
    max-width: 500px;
    margin: 0 auto;
    animation: modalSlideUp .3s ease;
  }
  @keyframes modalSlideUp {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
  }
  .contact-modal-close {
    position: absolute;
    top: 10px;
    right: 12px;
    width: 32px;
    height: 32px;
    border: none;
    background: rgba(0,0,0,0.06);
    border-radius: 50%;
    font-size: 18px;
    color: #666;
    cursor: pointer;
    z-index: 2;
  }
  /* 弹窗内的contact内容复用原始样式但适配弹窗 */
  .contact-modal .contact-left { margin-bottom: 16px; }
  .contact-modal .contact-left h2 { font-size: 18px; margin-bottom: 6px; }
  .contact-modal .contact-left p { font-size: 12px; margin-bottom: 12px; }
  .contact-modal .contact-info { gap: 8px; margin-bottom: 4px; }
  .contact-modal .ci-item { padding: 8px 10px; }
  .contact-modal .ci-item strong { font-size: 12px; }
  .contact-modal .ci-item p { font-size: 11px; }
  .contact-modal .contact-form { gap: 10px; }
  .contact-modal .form-group label { font-size: 12px; }
  .contact-modal .form-group input,
  .contact-modal .form-group select,
  .contact-modal .form-group textarea { font-size: 14px; padding: 8px 10px; }
  .contact-modal .form-tip { font-size: 11px; }
}

@media (max-width: 480px) {
  .contact-fab {
    padding: 12px 12px 12px 16px;
    font-size: 13px;
    letter-spacing: 1px;
  }
  .fab-icon { font-size: 16px; }
  .contact-modal { padding: 16px 12px; }
}
.nav-user-area { margin-left: 8px; }
.btn-login {
  background: var(--primary); color: #fff; border: none;
  padding: 8px 18px; border-radius: 20px; font-size: 14px; font-weight: 600;
  cursor: pointer; transition: all .2s; white-space: nowrap;
}
.btn-login:hover { background: var(--primary-dark); transform: translateY(-1px); }

.nav-user-logged {
  display: flex; align-items: center; gap: 8px; cursor: pointer;
  padding: 4px 12px 4px 4px; border-radius: 20px; transition: background .2s;
}
.nav-user-logged:hover { background: var(--primary-light); }
.nav-user-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; font-weight: 600;
}
.nav-user-name { font-size: 14px; font-weight: 600; color: var(--text); }

/* ==================== 关注公众号门控 ==================== */
.wx-gate-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,.6); z-index: 10001;
  align-items: center; justify-content: center;
  backdrop-filter: blur(6px);
}
.wx-gate-overlay.show { display: flex; }
.wx-gate-card {
  background: #fff; border-radius: 16px; width: 92%; max-width: 480px;
  max-height: 92vh; overflow-y: auto; position: relative;
  box-shadow: 0 16px 56px rgba(0,0,0,.25);
  animation: authIn .3s ease;
}
.wx-gate-header {
  background: linear-gradient(135deg, #1a5276 0%, #2980b9 100%);
  color: #fff; text-align: center; padding: 28px 24px 22px;
  border-radius: 16px 16px 0 0;
}
.wx-gate-icon { font-size: 42px; margin-bottom: 8px; }
.wx-gate-header h2 { font-size: 20px; font-weight: 700; margin: 0 0 6px; }
.wx-gate-subtitle { font-size: 13px; opacity: .85; margin: 0; }
.wx-gate-body { display: flex; gap: 24px; padding: 28px 32px 32px; }
.wx-gate-qr {
  flex-shrink: 0; text-align: center; position: relative;
}
.wx-gate-qr img {
  width: 160px; height: 160px; border-radius: 8px;
  border: 2px solid #07c160; display: block;
}
.wx-gate-qr-badge {
  margin-top: 8px; font-size: 12px; color: #07c160; font-weight: 600;
}
.wx-gate-info { flex: 1; min-width: 0; }
.wx-gate-info h3 { font-size: 18px; font-weight: 700; margin: 0 0 12px; color: var(--text-dark); }
.wx-gate-benefits {
  list-style: none; padding: 0; margin: 0 0 20px;
}
.wx-gate-benefits li {
  font-size: 13px; color: var(--text-muted); padding: 5px 0;
  line-height: 1.5;
}
.wx-gate-btn {
  font-size: 15px; font-weight: 700; padding: 14px;
}
.wx-gate-tip {
  font-size: 11px; color: var(--text-muted); text-align: center;
  margin: 10px 0 0; line-height: 1.4;
}
@media (max-width: 480px) {
  .wx-gate-body { flex-direction: column; align-items: center; padding: 24px 20px 28px; }
  .wx-gate-qr img { width: 200px; height: 200px; }
  .wx-gate-info { text-align: center; width: 100%; }
  .wx-gate-benefits { text-align: left; max-width: 280px; margin-left: auto; margin-right: auto; }
}

.auth-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,.5); z-index: 9999;
  align-items: center; justify-content: center;
  backdrop-filter: blur(4px);
}
.auth-overlay.show { display: flex; }
.auth-modal {
  background: #fff; border-radius: 16px; width: 92%; max-width: 460px;
  max-height: 90vh; overflow-y: auto; position: relative;
  box-shadow: 0 12px 48px rgba(0,0,0,.2);
  animation: authIn .3s ease;
}
@keyframes authIn { from { opacity:0; transform: translateY(-20px) scale(.96); } to { opacity:1; transform: translateY(0) scale(1); } }
.auth-close {
  position: absolute; top: 14px; right: 14px;
  width: 32px; height: 32px; border: none; background: #f0f0f0;
  border-radius: 50%; cursor: pointer; font-size: 16px;
  display: flex; align-items: center; justify-content: center;
  z-index: 10;
}
.auth-close:hover { background: #e0e0e0; }

.auth-tabs { display: flex; border-bottom: 2px solid #f0f0f0; }
.auth-tab {
  flex: 1; padding: 14px 8px; border: none; background: none;
  font-size: 14px; font-weight: 600; color: var(--text-muted);
  cursor: pointer; transition: all .2s; border-bottom: 3px solid transparent;
  font-family: inherit;
}
.auth-tab:hover { color: var(--primary); }
.auth-tab.active { color: var(--primary); border-bottom-color: var(--primary); }

.auth-panel { display: none; padding: 28px 32px 32px; }
.auth-panel.active { display: block; }

/* 微信面板 */
.auth-wechat { text-align: center; }
.qr-placeholder { margin-bottom: 20px; }
.qr-real {
  width: 180px; height: 180px;
  margin: 0 auto 12px;
  display: block;
  background: #fff;
  border: 2px solid #07c160;
  border-radius: 12px;
  padding: 6px;
  box-sizing: border-box;
}
.qr-tip { font-size: 14px; color: var(--text-muted); }
.auth-wechat-info h3 { font-size: 20px; margin-bottom: 8px; }
.auth-wechat-info p { font-size: 14px; color: var(--text-muted); margin-bottom: 16px; }
.auth-benefits { text-align: left; margin-bottom: 20px; list-style: none; }
.auth-benefits li { font-size: 14px; padding: 4px 0; color: var(--text); }
.auth-note { font-size: 12px; color: var(--text-muted); margin-top: 12px; text-align: center; }

/* 表单 */
.auth-form { display: flex; flex-direction: column; gap: 16px; }
.auth-form-group { display: flex; flex-direction: column; gap: 6px; }
.auth-form-group label { font-size: 14px; font-weight: 600; color: var(--text); }
.auth-form-group input {
  padding: 10px 14px; border: 1px solid #e0e0e0; border-radius: 8px;
  font-size: 15px; outline: none; transition: border .2s; font-family: inherit;
}
.auth-form-group input:focus { border-color: var(--primary); }
.auth-required { color: var(--danger); }
.auth-agreement { font-size: 13px; color: var(--text-muted); }
.auth-agreement label { display: flex; align-items: flex-start; gap: 6px; cursor: pointer; }
.auth-agreement input[type=checkbox] { margin-top: 2px; }
.auth-agreement a { color: var(--primary); }
.auth-switch { text-align: center; font-size: 14px; color: var(--text-muted); margin-top: 8px; }
.auth-switch a { color: var(--primary); font-weight: 600; }

/* 用户下拉菜单 */
.user-dropdown {
  position: fixed; top: 60px; right: 20px;
  background: #fff; border-radius: 12px; box-shadow: 0 8px 32px rgba(0,0,0,.15);
  z-index: 9998; overflow: hidden; min-width: 200px;
  animation: dropdownIn .2s ease;
}
@keyframes dropdownIn { from { opacity:0; transform: translateY(-8px); } to { opacity:1; transform: translateY(0); } }
.user-dropdown-header {
  padding: 16px 20px; background: var(--primary-light);
  border-bottom: 1px solid #e8f1fe;
}
.user-dropdown-header .ud-name { font-size: 16px; font-weight: 700; color: var(--text); }
.user-dropdown-header .ud-phone { font-size: 13px; color: var(--text-muted); margin-top: 2px; }
.user-dropdown-header .ud-source { font-size: 11px; margin-top: 4px; }
.user-dropdown-menu { padding: 6px 0; }
.user-dropdown-menu a {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 20px; font-size: 14px; color: var(--text);
  transition: background .15s;
}
.user-dropdown-menu a:hover { background: var(--primary-light); color: var(--primary); }

@media (max-width: 768px) {
  .nav-user-area { margin-left: 0; margin-top: 8px; }
  .auth-modal { width: 96%; }
  .auth-panel { padding: 20px; }
  .user-dropdown { right: 10px; min-width: 180px; }
}