/* ============================================================
   小白开店助手 - 官网样式
   ============================================================ */

/* ===== 全局变量 ===== */
:root {
  --primary: #4F46E5;
  --primary-dark: #4338CA;
  --primary-light: #EEF2FF;
  --accent: #F59E0B;
  --accent-light: #FFFBEB;
  --success: #10B981;
  --danger: #EF4444;
  --text-dark: #1E293B;
  --text-body: #475569;
  --text-muted: #94A3B8;
  --bg-light: #F8FAFC;
  --bg-white: #FFFFFF;
  --border: #E2E8F0;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 25px -5px rgba(0,0,0,0.08), 0 4px 10px -6px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 40px -10px rgba(0,0,0,0.1);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== 全局重置 ===== */
html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  color: var(--text-body);
  background: var(--bg-white);
  line-height: 1.7;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  transition: var(--transition);
}

img {
  max-width: 100%;
}

/* ===== 导航栏 ===== */
#mainNav {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.6);
  padding: 12px 0;
  transition: var(--transition);
}

#mainNav.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.95);
}

.navbar-brand {
  font-size: 1.35rem;
  color: var(--text-dark) !important;
  letter-spacing: -0.02em;
}

.brand-icon {
  font-size: 1.5rem;
}

.navbar-nav .nav-link {
  color: var(--text-body) !important;
  font-weight: 500;
  padding: 8px 16px !important;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.navbar-nav .nav-link:hover {
  color: var(--primary) !important;
  background: var(--primary-light);
}

.navbar-toggler {
  border: none;
  padding: 8px;
}

.navbar-toggler:focus {
  box-shadow: none;
}

.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  font-weight: 600;
  transition: var(--transition);
}

.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.35);
}

.shadow-primary {
  box-shadow: 0 8px 24px rgba(79, 70, 229, 0.3);
}

.btn-outline-secondary {
  color: var(--text-body);
  border-color: var(--border);
  font-weight: 600;
  transition: var(--transition);
}

.btn-outline-secondary:hover {
  background: var(--bg-light);
  color: var(--text-dark);
  border-color: var(--text-muted);
  transform: translateY(-1px);
}

/* ===== Hero 主视觉区 ===== */
.hero-section {
  position: relative;
  background: linear-gradient(135deg, #EEF2FF 0%, #E0E7FF 30%, #F0F9FF 70%, #F8FAFC 100%);
  overflow: hidden;
}

.hero-bg-shapes {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.4;
}

.shape-1 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(79,70,229,0.12) 0%, transparent 70%);
  top: -80px;
  right: -100px;
}

.shape-2 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(245,158,11,0.1) 0%, transparent 70%);
  bottom: 10%;
  left: -80px;
}

.shape-3 {
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(16,185,129,0.1) 0%, transparent 70%);
  top: 40%;
  right: 20%;
}

.hero-text {
  position: relative;
  z-index: 2;
  padding: 100px 0 80px;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  color: var(--text-dark);
  line-height: 1.25;
  margin: 16px 0 20px;
  letter-spacing: -0.03em;
}

.text-highlight {
  position: relative;
  color: var(--primary);
  display: inline-block;
}

.text-highlight::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0;
  right: 0;
  height: 8px;
  background: rgba(79, 70, 229, 0.15);
  border-radius: 4px;
  z-index: -1;
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--text-body);
  margin-bottom: 28px;
  line-height: 1.8;
}

.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-stats {
  padding-top: 8px;
}

.stat-item {
  text-align: center;
  padding: 12px 8px;
  background: rgba(255,255,255,0.7);
  border-radius: var(--radius-md);
  border: 1px solid rgba(226,232,240,0.6);
}

.stat-num {
  display: block;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
}

.stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* 手机模拟 */
.hero-phone-mockup {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: center;
  padding: 60px 0;
}

.phone-frame {
  width: 280px;
  height: 560px;
  background: #1E293B;
  border-radius: 36px;
  padding: 12px;
  box-shadow: 0 30px 60px rgba(30,41,59,0.25), 0 0 0 2px rgba(30,41,59,0.1);
  transform: rotate(-2deg);
  transition: var(--transition);
}

.phone-frame:hover {
  transform: rotate(0deg) translateY(-8px);
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: #fff;
  border-radius: 28px;
  overflow: hidden;
  padding: 16px;
}

.phone-app-preview {
  font-size: 12px;
}

.preview-header {
  text-align: center;
  font-weight: 700;
  font-size: 14px;
  padding: 8px 0 12px;
  color: var(--text-dark);
  border-bottom: 1px solid var(--border);
  margin-bottom: 12px;
}

.preview-card {
  background: var(--bg-light);
  border-radius: 10px;
  padding: 10px 12px;
  margin-bottom: 8px;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 8px;
}

.preview-icon {
  font-size: 18px;
  flex-shrink: 0;
}

.preview-title {
  font-weight: 600;
  color: var(--text-dark);
  font-size: 12px;
  width: calc(100% - 30px);
}

.preview-data {
  width: 100%;
  padding-left: 26px;
  font-size: 11px;
  color: var(--text-body);
}

.preview-data span {
  display: block;
  margin-bottom: 2px;
}

/* 波浪 */
.hero-wave {
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  z-index: 1;
}

.hero-wave svg {
  width: 100%;
  height: 80px;
  display: block;
}

/* ===== 通用区块标题 ===== */
.section-header {
  margin-bottom: 16px;
}

.section-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 12px;
  letter-spacing: 0.04em;
}

.section-title {
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== 行业痛点 ===== */
.section-pain-points {
  padding: 80px 0;
  background: var(--bg-light);
}

.pain-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  height: 100%;
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.pain-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  transition: var(--transition);
}

.pain-card.card-1::before { background: #EF4444; }
.pain-card.card-2::before { background: #F59E0B; }
.pain-card.card-3::before { background: #8B5CF6; }

.pain-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.pain-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.pain-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.pain-card p {
  font-size: 0.95rem;
  color: var(--text-body);
  margin-bottom: 16px;
  line-height: 1.7;
}

.pain-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.pain-list li {
  font-size: 0.88rem;
  color: var(--text-muted);
  padding: 5px 0 5px 20px;
  position: relative;
}

.pain-list li::before {
  content: '✕';
  position: absolute;
  left: 0;
  color: var(--danger);
  font-size: 0.7rem;
  font-weight: 700;
  top: 6px;
}

/* ===== 四大工具 ===== */
.section-tools {
  padding: 80px 0;
  background: var(--bg-white);
}

.tool-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  height: 100%;
  border: 1px solid var(--border);
  transition: var(--transition);
  text-align: center;
}

.tool-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

.tool-icon-wrap {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  transition: var(--transition);
}

.tool-icon {
  width: 36px;
  height: 36px;
}

.icon-people {
  background: #EEF2FF;
  color: #4F46E5;
}

.icon-cost {
  background: #FFFBEB;
  color: #F59E0B;
}

.icon-poi {
  background: #ECFDF5;
  color: #10B981;
}

.icon-guide {
  background: #FEF2F2;
  color: #EF4444;
}

.tool-card:hover .tool-icon-wrap {
  transform: scale(1.1);
}

.tool-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.tool-card p {
  font-size: 0.92rem;
  color: var(--text-body);
  margin-bottom: 16px;
  line-height: 1.7;
}

.tool-features {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
}

.tool-tag {
  display: inline-block;
  background: var(--bg-light);
  color: var(--text-body);
  font-size: 0.78rem;
  padding: 4px 12px;
  border-radius: 50px;
  border: 1px solid var(--border);
}

/* ===== 选址流程 ===== */
.section-process {
  padding: 80px 0;
  background: var(--bg-light);
}

.process-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  height: 100%;
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
}

.process-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
}

.process-step {
  position: absolute;
  top: -16px;
  left: 28px;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  font-size: 0.85rem;
  padding: 4px 14px;
  border-radius: 50px;
  letter-spacing: 0.04em;
}

.process-icon-wrap {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  transition: var(--transition);
}

.process-card:hover .process-icon-wrap {
  transform: scale(1.1);
  background: #E0E7FF;
}

.process-icon {
  font-size: 2rem;
}

.process-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}

.process-card p {
  font-size: 0.92rem;
  color: var(--text-body);
  line-height: 1.7;
}

/* ===== 数据亮点 ===== */
.section-stats {
  padding: 60px 0;
  background: var(--primary);
  background: linear-gradient(135deg, #4F46E5 0%, #6366F1 50%, #818CF8 100%);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-card {
  text-align: center;
  padding: 24px 16px;
  background: rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  border: 1px solid rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

.stat-card:hover {
  background: rgba(255,255,255,0.2);
  transform: translateY(-4px);
}

.stat-icon-wrap {
  font-size: 1.8rem;
  margin-bottom: 8px;
}

.stat-value {
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 4px;
}

.stat-name {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.75);
  font-weight: 500;
}

/* ===== FAQ ===== */
.section-faq {
  padding: 80px 0;
  background: var(--bg-white);
}

.accordion-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-md) !important;
  margin-bottom: 12px;
  overflow: hidden;
}

.accordion-button {
  font-weight: 600;
  color: var(--text-dark);
  font-size: 1rem;
  padding: 18px 24px;
  background: var(--bg-white);
  box-shadow: none !important;
}

.accordion-button:not(.collapsed) {
  color: var(--primary);
  background: var(--primary-light);
}

.accordion-button::after {
  transition: var(--transition);
}

.accordion-body {
  padding: 16px 24px 20px;
  color: var(--text-body);
  line-height: 1.8;
  font-size: 0.95rem;
}

/* ===== CTA ===== */
.section-cta {
  padding: 80px 0;
  background: var(--bg-light);
}

.cta-card {
  background: linear-gradient(135deg, #4F46E5 0%, #6366F1 100%);
  border-radius: var(--radius-xl);
  padding: 48px 40px;
  color: #fff;
  box-shadow: 0 20px 50px rgba(79, 70, 229, 0.3);
}

.cta-card h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 800;
  margin-bottom: 12px;
}

.cta-card p {
  font-size: 1.05rem;
  opacity: 0.9;
  margin-bottom: 0;
  line-height: 1.7;
}

.qr-code {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.qr-placeholder {
  width: 140px;
  height: 140px;
  background: #fff;
  border-radius: var(--radius-md);
  padding: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  margin-bottom: 10px;
}

.qr-svg {
  width: 100%;
  height: 100%;
}

.qr-label {
  font-size: 0.85rem;
  opacity: 0.85;
  font-weight: 500;
}

/* ===== 页脚 ===== */
.footer {
  background: #0F172A;
  color: #CBD5E1;
  padding: 60px 0 0;
}

.footer-brand {
  color: #fff;
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.footer-desc {
  font-size: 0.9rem;
  opacity: 0.7;
  margin-bottom: 16px;
  line-height: 1.7;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.social-link {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: var(--transition);
}

.social-link:hover {
  background: rgba(255,255,255,0.18);
  transform: translateY(-2px);
}

.footer-title {
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  color: #CBD5E1;
  font-size: 0.88rem;
  opacity: 0.7;
  transition: var(--transition);
}

.footer-links a:hover {
  opacity: 1;
  color: #fff;
}

.footer-links li {
  font-size: 0.88rem;
  opacity: 0.7;
}

/* 底部链接网格：每行2个 */
.footer-links-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px 12px;
}

.footer-links-grid li {
  white-space: nowrap;
}

/* 手机端：底部菜单一行显示2个 */
@media (max-width: 767.98px) {
  .footer-links-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.footer-friends {
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-top: 40px;
  padding: 20px 0 0;
  text-align: center;
  font-size: 0.84rem;
  opacity: 0.6;
}

.friends-label {
  font-weight: 600;
  color: #fff;
  opacity: 0.8;
}

.friend-link {
  color: #CBD5E1;
  margin: 0 4px;
  transition: var(--transition);
}

.friend-link:hover {
  color: #fff;
  opacity: 1;
}

.friend-divider {
  color: rgba(255,255,255,0.15);
  margin: 0 2px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-top: 16px;
  padding: 20px 0;
  text-align: center;
  font-size: 0.82rem;
  opacity: 0.5;
}

.footer-bottom p {
  margin: 0;
}

/* ===== 动画 ===== */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 子页面通用头部 ===== */
.page-hero {
  background: linear-gradient(135deg, #EEF2FF 0%, #E0E7FF 50%, #F8FAFC 100%);
  padding: 120px 0 60px;
  text-align: center;
}

.page-hero-content h1 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 800;
  color: var(--text-dark);
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.page-hero-content p {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin: 0;
}

/* ===== 用户协议内容区 ===== */
.section-agreement {
  padding: 40px 0 80px;
  background: var(--bg-white);
}

.agreement-content {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 40px;
  line-height: 1.9;
  font-size: 0.95rem;
  color: var(--text-body);
}

.agreement-content h2,
.agreement-content h3 {
  color: var(--text-dark);
  margin-top: 28px;
  margin-bottom: 12px;
  font-weight: 700;
}

.agreement-content h2 { font-size: 1.3rem; }
.agreement-content h3 { font-size: 1.1rem; }

.agreement-content p {
  margin-bottom: 12px;
}

.agreement-content ul,
.agreement-content ol {
  padding-left: 1.5em;
  margin-bottom: 12px;
}

.agreement-content img {
  max-width: 100%;
  border-radius: var(--radius-sm);
}

/* ===== 手机端导航栏立即体验按钮 ===== */
.mobile-exp-btn {
  font-size: 0.82rem;
  white-space: nowrap;
  padding: 6px 14px !important;
  margin-left: auto;
  flex-shrink: 0;
}

/* ===== PC端右侧浮动体验码 ===== */
.floating-qr-bar {
  position: fixed;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1030;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: 0 8px 32px rgba(0,0,0,0.14), 0 2px 8px rgba(0,0,0,0.08);
  padding: 18px 14px;
}

.floating-qr-panel-item {
  text-align: center;
}

.floating-qr-panel-item img {
  width: 90px;
  height: 90px;
  max-width: 100%;
  object-fit: contain;
  display: block;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.floating-qr-panel-item span {
  display: block;
  margin-top: 4px;
  font-size: 0.7rem;
  color: var(--text-body);
  font-weight: 500;
}

/* ===== 手机端底部固定体验条 ===== */
.mobile-qr-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1030;
  background: #fff;
  border-top: 1px solid var(--border);
  box-shadow: 0 -4px 16px rgba(0,0,0,0.08);
}

.mobile-qr-panel {
  display: none;
  flex-direction: row;
  justify-content: center;
  gap: 24px;
  padding: 14px 16px 8px;
  background: #fff;
}

.mobile-qr-bar.open .mobile-qr-panel {
  display: flex;
}

.mobile-qr-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  padding: 10px 16px;
  background: var(--primary);
  color: #fff;
  border: none;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.mobile-qr-toggle:active {
  background: var(--primary-dark);
}

.toggle-arrow {
  transition: var(--transition);
  font-size: 0.7rem;
  display: inline-block;
}

.mobile-qr-bar.open .toggle-arrow {
  transform: rotate(180deg);
}

.mobile-qr-item {
  text-align: center;
}

.mobile-qr-item img {
  width: 90px;
  height: 90px;
  object-fit: contain;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 4px;
  display: block;
}

.mobile-qr-item span {
  display: block;
  font-size: 0.72rem;
  color: var(--text-body);
  font-weight: 500;
}

/* ===== 手机端导航栏QR弹窗 ===== */
.qr-modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 1050;
  align-items: center;
  justify-content: center;
}

.qr-modal-overlay.show {
  display: flex;
}

.qr-modal {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px 24px 20px;
  width: 90%;
  max-width: 320px;
  text-align: center;
  position: relative;
  animation: modalIn 0.25s ease;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.9) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.qr-modal-close {
  position: absolute;
  top: 6px;
  right: 12px;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
  padding: 4px;
}

.qr-modal-close:hover {
  color: var(--text-dark);
}

.qr-modal h5 {
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 16px;
  font-size: 1rem;
}

.qr-modal-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.qr-modal-item {
  text-align: center;
}

.qr-modal-item img {
  width: 130px;
  height: 130px;
  object-fit: contain;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 4px;
}

.qr-modal-item span {
  display: block;
  font-size: 0.82rem;
  color: var(--text-body);
  font-weight: 600;
}

/* ===== 响应式 ===== */
@media (max-width: 1199.98px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .phone-frame {
    width: 240px;
    height: 480px;
  }
}

@media (max-width: 991.98px) {
  .hero-text {
    padding: 120px 0 40px;
    text-align: center;
  }

  .hero-btns {
    justify-content: center;
  }

  .hero-stats {
    margin-top: 20px !important;
  }

  .section-pain-points,
  .section-tools,
  .section-process,
  .section-faq,
  .section-cta {
    padding: 60px 0;
  }

  .cta-card {
    text-align: center;
    padding: 36px 24px;
  }

  .cta-card .row > div:last-child {
    margin-top: 24px;
  }

  .navbar-collapse {
    background: rgba(255,255,255,0.98);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-top: 8px;
    box-shadow: var(--shadow-lg);
  }

  .navbar-nav .nav-link {
    padding: 10px 16px !important;
  }
}

@media (max-width: 767.98px) {
  .hero-title {
    font-size: 1.75rem;
  }

  .hero-desc {
    font-size: 1rem;
  }

  .hero-btns .btn {
    width: 100%;
  }

  .hero-btns .btn:last-child {
    margin-top: 8px;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .stat-value {
    font-size: 1.5rem;
  }

  .pain-card,
  .tool-card,
  .process-card {
    padding: 24px 20px;
  }

  .cta-card {
    padding: 28px 20px;
  }

  .agreement-content {
    padding: 24px 20px;
  }

  .footer {
    padding: 40px 0 0;
    padding-bottom: 60px; /* 手机端底部体验条高度 */
  }

  .page-hero {
    padding: 100px 0 40px;
  }
}

@media (max-width: 575.98px) {
  .hero-text {
    padding: 100px 0 30px;
  }

  .page-hero {
    padding: 90px 0 32px;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .stat-card {
    padding: 16px 10px;
  }

  .stat-value {
    font-size: 1.3rem;
  }

  .stat-name {
    font-size: 0.78rem;
  }
}