/* 霸王餐试吃系统 - 增强美化版样式文件 */

/* ===== 基础重置 ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: #333;
  line-height: 1.6;
  background: #fff;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

/* ===== 浮动粒子背景 ===== */
.floating-particles {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 8px;
  height: 8px;
  background: linear-gradient(135deg, rgba(255,107,0,0.3), rgba(255,149,0,0.1));
  border-radius: 50%;
  animation: float-particle 15s infinite ease-in-out;
}

.particle:nth-child(1) { left: 10%; animation-delay: 0s; animation-duration: 18s; }
.particle:nth-child(2) { left: 20%; animation-delay: 2s; animation-duration: 22s; width: 6px; height: 6px; }
.particle:nth-child(3) { left: 35%; animation-delay: 4s; animation-duration: 20s; }
.particle:nth-child(4) { left: 50%; animation-delay: 1s; animation-duration: 16s; width: 10px; height: 10px; }
.particle:nth-child(5) { left: 65%; animation-delay: 3s; animation-duration: 24s; }
.particle:nth-child(6) { left: 80%; animation-delay: 5s; animation-duration: 19s; width: 5px; height: 5px; }
.particle:nth-child(7) { left: 90%; animation-delay: 2.5s; animation-duration: 21s; }

@keyframes float-particle {
  0%, 100% {
    transform: translateY(100vh) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-100px) rotate(360deg);
    opacity: 0;
  }
}

/* ===== 通用容器 ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.section {
  padding: 100px 0;
  position: relative;
}

/* ===== 标题样式增强 ===== */
.section-title {
  text-align: center;
  margin-bottom: 60px;
}

.section-title h2 {
  font-size: 38px;
  font-weight: 800;
  color: #1a1a1a;
  position: relative;
  display: inline-block;
  padding-bottom: 20px;
  background: linear-gradient(135deg, #1a1a1a 0%, #333 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, #ff6b00, #ff9500, #ffb347);
  border-radius: 2px;
  box-shadow: 0 4px 15px rgba(255, 107, 0, 0.4);
}

.section-title h2::before {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 12px;
  height: 12px;
  background: linear-gradient(135deg, #ff6b00, #ff9500);
  border-radius: 50%;
  box-shadow: 0 0 20px rgba(255, 107, 0, 0.5);
}

.section-title p {
  margin-top: 25px;
  font-size: 17px;
  color: #666;
  letter-spacing: 1px;
}

/* ===== Hero 区域 - 增强版 ===== */
.hero {
  background: linear-gradient(135deg, #ff6b00 0%, #ff8c00 40%, #ffa726 70%, #ffb74d 100%);
  min-height: 680px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
}

/* 动态背景光效 */
.hero::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, transparent 70%);
  animation: pulse-glow 4s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -150px;
  left: -150px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
  animation: pulse-glow 5s ease-in-out infinite reverse;
}

@keyframes pulse-glow {
  0%, 100% {
    transform: scale(1);
    opacity: 0.8;
  }
  50% {
    transform: scale(1.1);
    opacity: 1;
  }
}

/* 装饰性波浪线 */
.hero-wave {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  overflow: hidden;
  line-height: 0;
}

.hero-wave svg {
  position: relative;
  display: block;
  width: calc(100% + 1.3px);
  height: 80px;
}

.hero .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 80px;
  position: relative;
  z-index: 2;
}

.hero-content {
  flex: 1;
  color: #fff;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.2);
  backdrop-filter: blur(10px);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 14px;
  margin-bottom: 25px;
  border: 1px solid rgba(255,255,255,0.3);
}

.hero-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: #52c41a;
  border-radius: 50%;
  animation: blink 1.5s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero-content h1 {
  font-size: 56px;
  font-weight: 900;
  margin-bottom: 25px;
  line-height: 1.15;
  text-shadow: 0 4px 20px rgba(0,0,0,0.15);
  letter-spacing: -1px;
}

.hero-content h1 span {
  display: block;
  font-size: 28px;
  font-weight: 500;
  margin-top: 10px;
  opacity: 0.95;
}

.hero-content p {
  font-size: 18px;
  margin-bottom: 35px;
  line-height: 1.9;
  opacity: 0.95;
}

.hero-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 18px 42px;
  background: #fff;
  color: #ff6b00;
  font-size: 17px;
  font-weight: 700;
  border-radius: 60px;
  box-shadow: 0 15px 40px rgba(0,0,0,0.2);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
}

.hero-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,107,0,0.1), transparent);
  transition: left 0.5s;
}

.hero-btn:hover::before {
  left: 100%;
}

.hero-btn:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: 0 20px 50px rgba(0,0,0,0.3);
}

.hero-btn svg {
  transition: transform 0.3s;
}

.hero-btn:hover svg {
  transform: translateX(5px);
}

/* 手机样机 - 玻璃拟态增强 */
.hero-phones {
  flex: 1;
  display: flex;
  justify-content: center;
  position: relative;
}

.hero-phones::before {
  content: 'C端用户';
  position: absolute;
  top: -35px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255,255,255,0.25);
  backdrop-filter: blur(10px);
  padding: 6px 20px;
  border-radius: 20px;
  font-size: 13px;
  color: #fff;
  font-weight: 600;
  border: 1px solid rgba(255,255,255,0.3);
}

.phone-mockup {
  width: 280px;
  height: 560px;
  background: linear-gradient(145deg, #2a2a2a, #1a1a1a);
  border-radius: 42px;
  padding: 14px;
  box-shadow: 
    0 35px 80px rgba(0,0,0,0.35),
    0 0 0 1px rgba(255,255,255,0.1) inset,
    0 20px 40px rgba(255,107,0,0.1);
  position: relative;
  transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.phone-mockup:hover {
  transform: translateY(-10px) rotate(2deg);
}

.phone-mockup::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 28px;
  background: #1a1a1a;
  border-radius: 14px;
  z-index: 2;
  border: 1px solid rgba(255,255,255,0.05);
}

.phone-mockup.screen {
  background: linear-gradient(180deg, #fff9f2 0%, #fff 100%);
  display: flex;
  flex-direction: column;
}

.phone-header {
  background: linear-gradient(135deg, #ff6b00, #ff8c00);
  color: #fff;
  padding: 16px 18px;
  border-radius: 28px 28px 0 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  box-shadow: 0 2px 10px rgba(255,107,0,0.3);
}

.phone-header .location {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
}

.phone-content {
  flex: 1;
  padding: 18px;
  overflow: hidden;
}

.mock-banner {
  background: linear-gradient(135deg, #ff6b00, #ff9500, #ffb347);
  border-radius: 16px;
  padding: 18px;
  color: #fff;
  margin-bottom: 15px;
  box-shadow: 0 8px 25px rgba(255,107,0,0.3);
  position: relative;
  overflow: hidden;
}

.mock-banner::before {
  content: '';
  position: absolute;
  top: -20px;
  right: -20px;
  width: 80px;
  height: 80px;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
}

.mock-banner h4 {
  font-size: 15px;
  margin-bottom: 6px;
  font-weight: 700;
}

.mock-banner p {
  font-size: 12px;
  opacity: 0.95;
}

.mock-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mock-item {
  background: #fff;
  border-radius: 14px;
  padding: 14px;
  display: flex;
  gap: 12px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.06);
  border: 1px solid rgba(0,0,0,0.03);
  transition: all 0.3s;
}

.mock-item:hover {
  box-shadow: 0 8px 25px rgba(255,107,0,0.12);
  transform: translateX(5px);
}

.mock-item-img {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, #ffe4d4, #ffd4b8);
  border-radius: 12px;
  flex-shrink: 0;
}

.mock-item-info h5 {
  font-size: 13px;
  color: #333;
  margin-bottom: 4px;
  font-weight: 600;
}

.mock-item-info p {
  font-size: 11px;
  color: #999;
}

.mock-tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 15px;
}

.mock-tab {
  flex: 1;
  background: #fff;
  border-radius: 10px;
  padding: 10px;
  text-align: center;
  font-size: 12px;
  color: #666;
  box-shadow: 0 3px 10px rgba(0,0,0,0.05);
  transition: all 0.3s;
  cursor: pointer;
}

.mock-tab.active {
  background: linear-gradient(135deg, #ff6b00, #ff8c00);
  color: #fff;
  box-shadow: 0 5px 20px rgba(255,107,0,0.3);
}

.hero-phones .phone-mockup:last-child {
  margin-left: -80px;
  z-index: 2;
}

.hero-phones .phone-mockup:last-child:hover {
  transform: translateY(-10px) rotate(-2deg);
}

/* ===== 能力区 - 玻璃拟态增强 ===== */
.abilities {
  background: linear-gradient(180deg, #fff 0%, #fff9f2 50%, #fff 100%);
  position: relative;
}

/* 装饰背景 */
.abilities::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255,107,0,0.03) 0%, transparent 70%);
  pointer-events: none;
}

.abilities-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.ability-card {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  border-radius: 24px;
  padding: 40px 30px;
  text-align: center;
  border: 1px solid rgba(255, 107, 0, 0.1);
  transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
}

.ability-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #ff6b00, #ff9500, #ffb347);
  opacity: 0;
  transition: opacity 0.3s;
}

.ability-card:hover::before {
  opacity: 1;
}

.ability-card:hover {
  transform: translateY(-12px) scale(1.02);
  box-shadow: 0 25px 60px rgba(255, 107, 0, 0.15);
  border-color: rgba(255, 107, 0, 0.3);
}

.ability-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  background: linear-gradient(135deg, #fff5ee, #ffe8dc);
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.4s;
  box-shadow: 0 10px 30px rgba(255, 107, 0, 0.1);
}

.ability-card:hover .ability-icon {
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 15px 40px rgba(255, 107, 0, 0.2);
}

.ability-icon svg {
  width: 36px;
  height: 36px;
  color: #ff6b00;
}

.ability-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 12px;
}

.ability-card p {
  font-size: 14px;
  color: #666;
  line-height: 1.7;
}

/* ===== 系统演示区 - 增强 ===== */
.system-demo {
  background: #fff;
  position: relative;
}

.system-demo::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, transparent, #ff6b00);
}

.system-phones {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.system-phone {
  width: 240px;
  background: #fff;
  border-radius: 28px;
  padding: 10px;
  box-shadow: 0 15px 50px rgba(0,0,0,0.08);
  border: 2px solid rgba(255, 107, 0, 0.08);
  transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
}

.system-phone::after {
  content: '';
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 30px;
  background: linear-gradient(135deg, #ff6b00, #ff8c00);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 5px 15px rgba(255,107,0,0.3);
}

.system-phone:hover {
  transform: translateY(-15px) scale(1.03);
  box-shadow: 0 30px 70px rgba(255, 107, 0, 0.18);
  border-color: rgba(255, 107, 0, 0.3);
}

.system-phone .phone-screen {
  background: #fff;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid #f0f0f0;
}

.system-phone .phone-nav {
  background: linear-gradient(135deg, #ff6b00, #ff8c00);
  color: #fff;
  padding: 14px 18px;
  font-size: 14px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.system-phone .phone-body {
  padding: 15px;
}

.system-phone .mini-banner {
  background: linear-gradient(135deg, #ff6b00, #ff9500);
  border-radius: 14px;
  height: 90px;
  margin-bottom: 12px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 15px;
  color: #fff;
  box-shadow: 0 6px 20px rgba(255,107,0,0.25);
}

.system-phone .mini-banner h5 {
  font-size: 14px;
  margin-bottom: 6px;
  font-weight: 700;
}

.system-phone .mini-banner p {
  font-size: 11px;
  opacity: 0.9;
}

.system-phone .mini-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.system-phone .mini-item {
  background: #fff9f2;
  border-radius: 12px;
  padding: 12px;
  display: flex;
  gap: 10px;
  transition: all 0.3s;
}

.system-phone .mini-item:hover {
  background: #fff3e0;
}

.system-phone .mini-item-img {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #ffe4d4, #ffd4b8);
  border-radius: 10px;
}

.system-phone .mini-item-text h6 {
  font-size: 12px;
  color: #333;
  font-weight: 600;
}

.system-phone .mini-item-text span {
  font-size: 10px;
  color: #999;
}

.system-phone-label {
  text-align: center;
  margin-top: 18px;
  font-size: 14px;
  color: #666;
  font-weight: 600;
  position: relative;
}

.system-phone-label::before,
.system-phone-label::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 30px;
  height: 1px;
  background: linear-gradient(90deg, transparent, #ddd);
}

.system-phone-label::before {
  right: calc(50% + 60px);
  background: linear-gradient(90deg, transparent, #ddd);
}

.system-phone-label::after {
  left: calc(50% + 60px);
  background: linear-gradient(270deg, transparent, #ddd);
}

/* ===== 基础功能区 - 渐变卡片 ===== */
.basic-features {
  background: linear-gradient(180deg, #f8f8f8 0%, #fff 50%, #f8f8f8 100%);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 25px;
}

.feature-card {
  background: #fff;
  border-radius: 20px;
  padding: 30px 22px;
  text-align: center;
  border: 1px solid #f0f0f0;
  transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(255,107,0,0.02), rgba(255,149,0,0.05));
  opacity: 0;
  transition: opacity 0.3s;
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.1);
  border-color: transparent;
}

.feature-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 18px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.4s;
}

.feature-card:hover .feature-icon {
  transform: scale(1.15) rotate(8deg);
}

.feature-icon svg {
  width: 28px;
  height: 28px;
  color: #fff;
}

.feature-icon.orange { background: linear-gradient(135deg, #ff6b00, #ff8c00); box-shadow: 0 8px 25px rgba(255,107,0,0.3); }
.feature-icon.blue { background: linear-gradient(135deg, #4a90e2, #5ba3f5); box-shadow: 0 8px 25px rgba(74,144,226,0.3); }
.feature-icon.green { background: linear-gradient(135deg, #52c41a, #73d13d); box-shadow: 0 8px 25px rgba(82,196,26,0.3); }
.feature-icon.red { background: linear-gradient(135deg, #ff4d4f, #ff7875); box-shadow: 0 8px 25px rgba(255,77,79,0.3); }
.feature-icon.purple { background: linear-gradient(135deg, #722ed1, #9254de); box-shadow: 0 8px 25px rgba(114,46,209,0.3); }
.feature-icon.cyan { background: linear-gradient(135deg, #13c2c2, #36cfc9); box-shadow: 0 8px 25px rgba(19,194,194,0.3); }

.feature-card h4 {
  font-size: 16px;
  font-weight: 700;
  color: #1a1a1a;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 13px;
  color: #888;
  line-height: 1.6;
}

/* ===== 商家端 - 增强 ===== */
.merchant-demo {
  background: linear-gradient(180deg, #fff 0%, #fff9f2 100%);
  position: relative;
}

.merchant-phones {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.merchant-phone {
  width: 240px;
  background: #fff;
  border-radius: 28px;
  padding: 10px;
  box-shadow: 0 15px 50px rgba(0,0,0,0.08);
  border: 2px solid rgba(255, 107, 0, 0.08);
  transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.merchant-phone:hover {
  transform: translateY(-15px) scale(1.03);
  box-shadow: 0 30px 70px rgba(255, 107, 0, 0.18);
  border-color: rgba(255, 107, 0, 0.3);
}

.merchant-phone .phone-screen {
  background: #fff;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid #f0f0f0;
}

.merchant-phone .phone-nav {
  background: linear-gradient(135deg, #ff6b00, #ff8c00);
  color: #fff;
  padding: 14px 18px;
  font-size: 14px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.merchant-phone .phone-body {
  padding: 15px;
}

.merchant-phone .stat-row {
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
}

.merchant-phone .stat-box {
  flex: 1;
  background: linear-gradient(135deg, #fff9f2, #fff);
  border-radius: 12px;
  padding: 14px 10px;
  text-align: center;
  border: 1px solid #ffe4cc;
  transition: all 0.3s;
}

.merchant-phone .stat-box:hover {
  background: #fff;
  box-shadow: 0 5px 15px rgba(255,107,0,0.1);
}

.merchant-phone .stat-box h6 {
  font-size: 16px;
  color: #ff6b00;
  font-weight: 800;
}

.merchant-phone .stat-box span {
  font-size: 10px;
  color: #999;
}

.merchant-phone .merchant-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.merchant-phone .merchant-item {
  background: #f8f8f8;
  border-radius: 12px;
  padding: 12px;
  display: flex;
  gap: 10px;
  transition: all 0.3s;
}

.merchant-phone .merchant-item:hover {
  background: #fff;
  box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}

.merchant-phone .merchant-item-img {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #ffe4d4, #ffd4b8);
  border-radius: 10px;
}

.merchant-phone .merchant-item-info h6 {
  font-size: 12px;
  color: #333;
  font-weight: 600;
}

.merchant-phone .merchant-item-info p {
  font-size: 10px;
  color: #ff6b00;
}

.merchant-phone .merchant-item-info .badge {
  display: inline-block;
  background: linear-gradient(135deg, #fff3e0, #ffe0b2);
  color: #ff6b00;
  font-size: 9px;
  padding: 3px 8px;
  border-radius: 6px;
  margin-top: 5px;
  font-weight: 600;
}

.merchant-phone-label {
  text-align: center;
  margin-top: 18px;
  font-size: 14px;
  color: #666;
  font-weight: 600;
}

/* ===== 系统扩展 - 圆形图标增强 ===== */
.expansion {
  background: linear-gradient(180deg, #fff9f2 0%, #fff 50%, #fff9f2 100%);
}

.expansion-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 25px;
}

.expansion-card {
  background: #fff;
  border-radius: 24px;
  padding: 30px 20px;
  text-align: center;
  border: 1px solid #f0f0f0;
  transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  overflow: hidden;
}

.expansion-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: conic-gradient(from 0deg, transparent, rgba(255,107,0,0.05), transparent 30%);
  opacity: 0;
  transition: opacity 0.3s;
  animation: rotate 4s linear infinite;
}

.expansion-card:hover::before {
  opacity: 1;
}

@keyframes rotate {
  100% { transform: rotate(360deg); }
}

.expansion-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 50px rgba(255, 107, 0, 0.12);
  border-color: rgba(255, 107, 0, 0.2);
}

.expansion-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
  transition: all 0.4s;
}

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

.expansion-icon svg {
  width: 26px;
  height: 26px;
  color: #fff;
}

.expansion-card h4 {
  font-size: 15px;
  font-weight: 700;
  color: #333;
  position: relative;
  z-index: 1;
}

.expansion-card p {
  font-size: 12px;
  color: #999;
  margin-top: 6px;
  position: relative;
  z-index: 1;
}

/* ===== 运营支持 - 圆形增强 ===== */
.support {
  background: #fff;
}

.support-grid {
  display: flex;
  justify-content: center;
  gap: 60px;
  flex-wrap: wrap;
}

.support-item {
  text-align: center;
}

.support-circle {
  width: 110px;
  height: 110px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, #fff, #fff9f2);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid #ffe4cc;
  transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  box-shadow: 0 10px 30px rgba(0,0,0,0.05);
  position: relative;
}

.support-circle::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: linear-gradient(135deg, #ff6b00, #ff8c00);
  opacity: 0;
  transition: opacity 0.3s;
  z-index: -1;
}

.support-item:hover .support-circle::before {
  opacity: 1;
}

.support-item:hover .support-circle {
  border-color: transparent;
  transform: scale(1.1);
  box-shadow: 0 15px 40px rgba(255, 107, 0, 0.25);
}

.support-item:hover .support-circle svg {
  color: #fff;
}

.support-circle svg {
  width: 42px;
  height: 42px;
  color: #333;
  transition: color 0.3s;
}

.support-item h4 {
  font-size: 16px;
  font-weight: 700;
  color: #333;
}

/* ===== CTA 区域 - 动态增强 ===== */
.cta {
  background: linear-gradient(135deg, #ff6b00 0%, #ff8c00 50%, #ffa726 100%);
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 60%;
  height: 200%;
  background: radial-gradient(ellipse, rgba(255,255,255,0.15) 0%, transparent 70%);
  animation: pulse-glow 3s ease-in-out infinite;
}

.cta::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 40%;
  height: 150%;
  background: radial-gradient(ellipse, rgba(255,255,255,0.1) 0%, transparent 70%);
  animation: pulse-glow 4s ease-in-out infinite reverse;
}

.cta h2 {
  font-size: 38px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 25px;
  text-shadow: 0 3px 15px rgba(0,0,0,0.15);
  position: relative;
  z-index: 1;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 20px 55px;
  background: #fff;
  color: #ff6b00;
  font-size: 20px;
  font-weight: 800;
  border-radius: 60px;
  box-shadow: 0 15px 40px rgba(0,0,0,0.25);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
  z-index: 1;
  overflow: hidden;
}

.cta-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,107,0,0.1), transparent);
  transition: left 0.6s;
}

.cta-btn:hover::before {
  left: 100%;
}

.cta-btn:hover {
  transform: translateY(-5px) scale(1.03);
  box-shadow: 0 20px 50px rgba(0,0,0,0.35);
}

/* ===== 滚动进度条增强 ===== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  background: linear-gradient(90deg, #ff6b00, #ff9500, #ffb347);
  z-index: 10000;
  transition: width 0.1s ease;
  box-shadow: 0 0 10px rgba(255,107,0,0.5);
}

/* ===== 返回顶部按钮增强 ===== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, #ff6b00, #ff8c00);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 30px rgba(255, 107, 0, 0.4);
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  z-index: 9999;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-8px) scale(1.1);
  box-shadow: 0 12px 40px rgba(255, 107, 0, 0.5);
}

.back-to-top svg {
  width: 24px;
  height: 24px;
}

/* ===== 响应式设计增强 ===== */
@media (max-width: 1024px) {
  .hero .container {
    flex-direction: column;
    text-align: center;
    padding-top: 60px;
    padding-bottom: 80px;
  }
  
  .hero-content h1 {
    font-size: 42px;
  }
  
  .hero-content h1 span {
    font-size: 22px;
  }
  
  .abilities-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .expansion-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .section-title h2 {
    font-size: 32px;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 70px 0;
  }
  
  .section-title h2 {
    font-size: 28px;
  }
  
  .section-title p {
    font-size: 15px;
  }
  
  .hero {
    min-height: auto;
  }
  
  .hero-content h1 {
    font-size: 32px;
  }
  
  .hero-content h1 span {
    font-size: 18px;
  }
  
  .hero-content p {
    font-size: 15px;
  }
  
  .hero-badge {
    font-size: 12px;
    padding: 6px 16px;
  }
  
  .hero-btn {
    padding: 15px 32px;
    font-size: 15px;
  }
  
  .hero-phones {
    flex-direction: column;
    align-items: center;
    gap: 30px;
  }
  
  .hero-phones::before {
    top: -25px;
    font-size: 11px;
  }
  
  .hero-phones .phone-mockup {
    width: 220px;
    height: 440px;
  }
  
  .hero-phones .phone-mockup:last-child {
    margin-left: -50px;
  }
  
  .abilities-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .ability-card {
    padding: 30px 25px;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }
  
  .feature-card {
    padding: 25px 18px;
  }
  
  .expansion-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }
  
  .system-phones,
  .merchant-phones {
    gap: 25px;
  }
  
  .system-phone,
  .merchant-phone {
    width: 200px;
  }
  
  .support-grid {
    gap: 35px;
  }
  
  .support-circle {
    width: 90px;
    height: 90px;
  }
  
  .support-circle svg {
    width: 34px;
    height: 34px;
  }
  
  .cta h2 {
    font-size: 28px;
  }
  
  .cta-btn {
    padding: 16px 40px;
    font-size: 17px;
  }
  
  .back-to-top {
    width: 48px;
    height: 48px;
    bottom: 20px;
    right: 20px;
  }
}

@media (max-width: 480px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .expansion-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .system-phone,
  .merchant-phone {
    width: 170px;
  }
  
  .cta h2 {
    font-size: 24px;
  }
  
  .cta-btn {
    padding: 14px 32px;
    font-size: 15px;
  }
}

/* ===== 动画增强 ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.animate-fadeInUp {
  animation: fadeInUp 0.8s ease forwards;
}

.animate-fadeInLeft {
  animation: fadeInLeft 0.8s ease forwards;
}

.animate-fadeInRight {
  animation: fadeInRight 0.8s ease forwards;
}

/* ===== 加载动画 ===== */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  transition: opacity 0.5s, visibility 0.5s;
}

.loading-overlay.hidden {
  opacity: 0;
  visibility: hidden;
}

.loading-spinner {
  width: 60px;
  height: 60px;
  border: 4px solid #ffe4cc;
  border-top-color: #ff6b00;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}