/* ========== CSS Variables ========== */
:root {
  --blue-900: #0a1628;
  --blue-800: #0d2137;
  --blue-700: #0f2d4a;
  --blue-600: #133a5e;
  --blue-500: #3785FF;
  --blue-400: #3b82f6;
  --blue-300: #60a5fa;
  --blue-200: #93c5fd;
  --blue-100: #dbeafe;
  --blue-50: #eff6ff;
  --cyan-400: #22d3ee;
  --cyan-300: #67e8f9;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,.1), 0 2px 4px -2px rgba(0,0,0,.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,.1), 0 4px 6px -4px rgba(0,0,0,.1);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,.1), 0 8px 10px -6px rgba(0,0,0,.1);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --font-display: 'Noto Sans SC', system-ui, -apple-system, sans-serif;
  --transition: .3s cubic-bezier(.4,0,.2,1);
}

/* ========== Reset & Base ========== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-display);
  color: var(--gray-800);
  background: var(--white);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* ========== Utility ========== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
@media(max-width:768px) { .container { padding: 0 16px; } }

/* ========== Navigation ========== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,1);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0,0,0,.06);
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(255,255,255,.95);
  box-shadow: var(--shadow-md);
}
.navbar .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 22px; font-weight: 700; color: var(--blue-600);
}
.nav-logo .logo-icon {
  font-size: 32px; line-height: 1;
  filter: drop-shadow(0 2px 4px rgba(26,86,219,.2));
}
.nav-logo .logo-icon img{ width: 48px; height: 48px;}
.nav-links { display: flex; align-items: center; gap: 80px; }
.nav-links a {
  font-size: 18px; font-weight: 500; color: var(--gray-600);
  position: relative; transition: color var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--blue-500); font-size: 18px; font-weight: 600;}
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 3px; background: var(--blue-500);
  border-radius: 6px; transition: width var(--transition);
}
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-download {
  padding: 10px 33px; background:#3785FF; color: var(--white);
  border-radius: var(--radius-full); font-size: 14px; font-weight: 600;
  transition: all var(--transition); box-shadow: 0 4px 15px rgba(26,86,219,.3);
}
.nav-download:hover {
  background: linear-gradient(to right, #2290D9, #9EEECB); transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(26,86,219,.4);
}
.hamburger { display: none; flex-direction: column; gap: 5px; padding: 4px; }
.hamburger span {
  width: 24px; height: 2px; background: var(--gray-700);
  border-radius: 2px; transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px,5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px,-5px); }
.mobile-menu {
  display: none; position: fixed; top: 72px; left: 0; right: 0; bottom: 0;
  background: rgba(255,255,255,.98); backdrop-filter: blur(20px);
  flex-direction: column; padding: 32px 24px; gap: 8px;
  z-index: 999;
}
.mobile-menu.show { display: flex; }
.mobile-menu a {
  font-size: 18px; font-weight: 500; color: var(--gray-700);
  padding: 16px 0; border-bottom: 1px solid var(--gray-100);
  transition: color var(--transition);
}
.mobile-menu a:hover { color: var(--blue-500); }

@media(max-width:768px) {
  .nav-links, .nav-download { display: none; }
  .hamburger { display: flex; }
}

/* ========== Hero Section ========== */
.hero {
   display: flex; align-items: center;
  position: relative; overflow: hidden;
  background: #3785FF;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 80%, rgba(34,211,238,.15) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 20%, rgba(96,165,250,.2) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 50% 50%, rgba(59,130,246,.1) 0%, transparent 60%);
}
.hero-grid {
  position: absolute; inset: 0; opacity: .04;
  background-image:
    linear-gradient(rgba(255,255,255,.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.5) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero .container { padding-top: 60px;
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.hero-content { color: var(--white); }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 20px; background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.15); border-radius: var(--radius-full);
  font-size: 14px; font-weight: 500; margin-bottom: 28px;
  backdrop-filter: blur(10px);
}
.hero-badge .dot {
  width: 8px; height: 8px; background: #34d399;
  border-radius: 50%; animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(52,211,153,.4); }
  50% { box-shadow: 0 0 0 6px rgba(52,211,153,0); }
}
.hero-title {
  font-size: 52px; font-weight: 800; line-height: 1.15;
  margin-bottom: 20px; letter-spacing: -.02em;
}
.hero-title .highlight { color: #04C78D;
}
.hero-subtitle {
  font-size: 18px; line-height: 1.8; color: rgba(255,255,255,.7);
  margin-bottom: 40px; max-width: 520px;
}
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 36px; background: var(--white); color: var(--blue-600);
  border-radius: var(--radius-full); font-size: 16px; font-weight: 700;
  transition: all var(--transition);
  box-shadow: 0 8px 30px rgba(0,0,0,.2);
}
.btn-primary:hover {
  transform: translateY(-2px); box-shadow: 0 12px 40px rgba(0,0,0,.3);
}
.btn-secondary {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 36px; background: rgba(255,255,255,.1);
  color: var(--white); border: 1px solid rgba(255,255,255,.25);
  border-radius: var(--radius-full); font-size: 16px; font-weight: 600;
  transition: all var(--transition); backdrop-filter: blur(10px);
}
.btn-secondary:hover {
  background: rgba(255,255,255,.18); border-color: rgba(255,255,255,.4);
  transform: translateY(-2px);
}
.hero-stats {
  display: flex; gap: 48px; margin-top: 55px;
  padding-top: 25px; border-top: 1px solid rgba(255,255,255,.1);
}
.hero-stat-num {
  font-size: 44px; font-weight: 800;
  color: #fff;
}
.hero-stat-label { font-size: 14px; color: rgba(255,255,255,.5); margin-top: 4px; }

/* Phone Mockup */
.hero-visual { display: flex; justify-content: center; align-items: center; }
.phone-mockup {
  width: 480px; position: relative; animation: float-phone 4s ease-in-out infinite;
}
.phone-mockup img{ width: 100%;  /* 水平偏移 垂直偏移 模糊 颜色(半透明黑) */
  filter: drop-shadow(6px 6px 12px rgba(0,0,0,0.35));
  /* 兼容旧版浏览器 */
  -webkit-filter: drop-shadow(6px 6px 12px rgba(0,0,0,0.35));}
@keyframes float-phone {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-16px); }
}
.phone-notch {
  width: 120px; height: 28px; background: var(--gray-900);
  border-radius: 0 0 16px 16px; position: absolute;
  top: 0; left: 50%; transform: translateX(-50%); z-index: 3;
}
.phone-screen {
  position: absolute; inset: 8px; border-radius: 28px; overflow: hidden;
  background: linear-gradient(180deg, #0f172a, #1e293b);
  display: flex; flex-direction: column;
}
.phone-header {
  padding: 40px 20px 16px; text-align: center;
  background: rgba(26,86,219,.2);
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.phone-header .app-name { font-size: 18px; font-weight: 700; color: var(--white); }
.phone-header .app-tagline { font-size: 11px; color: rgba(255,255,255,.5); margin-top: 2px; }
.phone-chats { flex: 1; padding: 8px; }
.chat-item {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 12px; border-radius: 12px;
  transition: background var(--transition); margin-bottom: 2px;
}
.chat-item:hover { background: rgba(255,255,255,.05); }
.chat-avatar {
  width: 44px; height: 44px; border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; flex-shrink: 0;
}
.chat-info { flex: 1; min-width: 0; }
.chat-name { font-size: 14px; font-weight: 600; color: var(--white); }
.chat-msg {
  font-size: 12px; color: rgba(255,255,255,.4);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  margin-top: 2px;
}
.chat-time { font-size: 11px; color: rgba(255,255,255,.3); flex-shrink: 0; }
.chat-badge {
  width: 20px; height: 20px; background: var(--blue-500);
  border-radius: 50%; font-size: 11px; font-weight: 700; color: var(--white);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.phone-nav {
  display: flex; justify-content: space-around; padding: 12px 20px 20px;
  border-top: 1px solid rgba(255,255,255,.06);
  background: rgba(0,0,0,.3);
}
.phone-nav-item { text-align: center; }
.phone-nav-item .icon { font-size: 20px; opacity: .6; }
.phone-nav-item .label { font-size: 10px; color: rgba(255,255,255,.4); margin-top: 2px; }
.phone-nav-item.active .icon { opacity: 1; }
.phone-nav-item.active .label { color: var(--blue-300); }

@media(max-width:768px) {
  .hero .container { grid-template-columns: 1fr; text-align: center; padding-top: 50px; }
  .hero-title { font-size: 34px; }
  .hero-subtitle { font-size: 16px; margin: 0 auto 32px; }
  .hero-buttons { justify-content: center; }
  .hero-stats { justify-content: center; gap: 32px; margin-top: 40px; }
  .hero-stat-num { font-size: 28px; }
  .hero-visual { order: -1; }
  .phone-mockup { width: 80%; max-width: 500px; border-radius: 28px; }
  .phone-screen { inset: 6px; border-radius: 22px; }
}

/* ========== Sections Common ========== */
section { padding: 60px 0; }
.section-label {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; background: var(--blue-50);
  border: 1px solid var(--blue-100); border-radius: var(--radius-full);
  font-size: 13px; font-weight: 600; color: var(--blue-500);
  margin-bottom: 16px; text-transform: uppercase; letter-spacing: .05em;
}
.section-title {
  font-size: 40px; font-weight: 800; color: var(--gray-900);
  line-height: 1.2; margin-bottom: 16px; letter-spacing: -.02em;
}
.section-desc {
  font-size: 17px; color: var(--gray-500); line-height: 1.8; text-align: center;
}
/* 深色背景区域（hero、values 等）白色描述文字 */
.hero .section-desc,
.values .section-desc,
.privacy-hero .section-desc {
  color: rgba(255,255,255,.65);
}
.section-header { text-align: center; margin-bottom: 32px; }
.section-header .section-desc { margin: 0 auto; }

.lc_dian{width:16px;height:16px;background:var(--blue-500);border-radius:50%;border:3px solid #fff;box-shadow:0 0 0 3px var(--blue-200);position:absolute;left:50%;transform:translateX(-50%);top:6px;z-index:2;flex-shrink:0; animation: pulse-dots 2s infinite;}
@keyframes pulse-dots {
  0%, 100% { box-shadow: 0 0 0 0 rgba(52,211,153,.4); }
  50% { box-shadow: 0 0 0 6px rgba(52,211,153,0); }
}
@media(max-width:768px) {
  section { padding: 40px 0; }
  .section-title { font-size: 28px; }
  .section-desc { font-size: 15px; }
  .section-header { margin-bottom: 30px; }
}

/* ========== Features Section ========== */
.features { background: var(--gray-50); }
.features-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
}
.feature-card {
  background: var(--white); border-radius: var(--radius-lg);
  padding: 40px 36px; transition: all var(--transition);
  border: 1px solid transparent; position: relative; overflow: hidden;
}
.feature-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 3px; background: linear-gradient(90deg, var(--blue-400), var(--cyan-400));
  transform: scaleX(0); transition: transform var(--transition);
  transform-origin: left;
}
.feature-card:hover {
  transform: translateY(-4px); box-shadow: var(--shadow-xl);
  border-color: var(--blue-100);
}
.feature-card:hover::before { transform: scaleX(1); }
.feature-icon {
  width: 56px; height: 56px; border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 28px; margin-bottom: 20px;
}
.feature-card:nth-child(1) .feature-icon { background: rgba(59,130,246,.1); }
.feature-card:nth-child(2) .feature-icon { background: rgba(34,211,238,.1); }
.feature-card:nth-child(3) .feature-icon { background: rgba(52,211,153,.1); }
.feature-card:nth-child(4) .feature-icon { background: rgba(168,85,247,.1); }
.feature-card h3 {
  font-size: 20px; font-weight: 700; color: var(--gray-900);
  margin-bottom: 12px;
}
.feature-card p {
  font-size: 15px; color: var(--gray-500); line-height: 1.8;
}

@media(max-width:768px) {
  .features-grid { grid-template-columns: 1fr; gap: 16px; }
  .feature-card { padding: 28px 24px; }
}

/* ========== Detail Features ========== */
.detail-features { background: var(--white); }
.detail-features-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.detail-card {
  padding: 32px 28px; border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--blue-50), var(--white));
  border: 1px solid var(--blue-100); transition: all var(--transition);
}
.detail-card:hover {
  transform: translateY(-2px); box-shadow: var(--shadow-lg);
  border-color: var(--blue-200);
}
.detail-card .d-icon {
  font-size: 32px; margin-bottom: 16px;
}
.detail-card h4 {
  font-size: 17px; font-weight: 700; color: var(--gray-900);
  margin-bottom: 10px;
}
.detail-card p {
  font-size: 14px; color: var(--gray-500); line-height: 1.8;
}

@media(max-width:768px) {
  .detail-features-grid { grid-template-columns: 1fr; }
}

/* ========== Values Section ========== */
.values {
  background: linear-gradient(135deg, var(--blue-900) 0%, var(--blue-700) 100%);
  color: var(--white); position: relative; overflow: hidden;
}
.values::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 50% 50% at 80% 20%, rgba(34,211,238,.1), transparent);
}
.values .section-label {
  background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.15);
  color: var(--cyan-300);
}
.values .section-title { color: var(--white); }
.values .section-desc { color: rgba(255,255,255,.6); }
.values-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  position: relative; z-index: 1;
}
.value-card {
  padding: 28px 28px; border-radius: var(--radius-lg);
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.08);
  backdrop-filter: blur(10px); transition: all var(--transition);
}
.value-card:hover {
  background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.15);
  transform: translateY(-4px);
}
.value-card .v-icon { font-size: 36px; margin-bottom: 20px; line-height: 36px;}
.value-card h4 { font-size: 20px; font-weight: 700; margin-bottom: 12px; }
.value-card p { font-size: 14px; color: rgba(255,255,255,.55); line-height: 1.8; }

@media(max-width:1024px) { .values-grid { grid-template-columns: repeat(2, 1fr); } }
@media(max-width:768px) { .values-grid { grid-template-columns: 1fr; gap: 16px; } }

/* ========== CTA / Download Section ========== */
.cta {
}
.cta-box { padding: 35px 48px;
  background: linear-gradient(135deg, var(--blue-500), #2563eb); color: var(--white);
  position: relative; overflow: hidden;
}
.cta-box::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 50% 50% at 0% 100%, rgba(34,211,238,.2), transparent),
    radial-gradient(ellipse 40% 40% at 100% 0%, rgba(96,165,250,.3), transparent);
}
.cta-box > * { position: relative; z-index: 1; }
.cta-box h2 { font-size: 36px; font-weight: 800; margin-bottom: 16px; text-align: center;}
.cta-box p { font-size: 17px; opacity: .8; margin-bottom: 36px; line-height: 1.8; text-align: center;}
.download-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.download-btn { width: 350px; text-align: center; align-items: center; gap: 20px;
  padding: 20px 28px; background: #fff; border-radius: 20px;
  box-shadow: 0 4px 15px rgba(0,0,0,.15);
}
.download-btn:hover {
  transform: translateY(-2px); box-shadow: 0 8px 25px rgba(0,0,0,.2);
}
.download-btn-ewm{ width: 120px; height: 120px; margin: 0 auto; margin-top: 10px; position: relative;}
.download-btn-ewm img{ width: 100%;}
.download-btn-ewm .logos{ position: absolute; left: 50%; top: 50%; width: 30px; height: 30px; background: #fff; border-radius: 4px; margin-left: -15px; margin-top: -15px; padding: 4px;}
.download-btn .dl-icon { font-size: 24px; margin-top: 10px; color: #000; font-weight: 600;}
.download-btn .dl-os { font-size: 16px; color: #000; font-weight: 600; height: 56px; line-height: 56px; text-align: center; border: #ddd 1px solid; border-radius: 10px;}
.download-btn .dl-os a{ width: 100%; display: block;}
.download-btn .dl-label { font-size: 14px; padding: 0 0 10px 0; color: #999; font-weight: 400; text-align: center; }

@media(max-width:768px) {
	.download-btn { width: 100%;}
  .cta-box { padding: 48px 24px; }
  .cta-box h2 { font-size: 26px; }
  .download-btn { padding: 12px 20px 20px 20px; }
}
.download-btn .dl-os:hover{background: linear-gradient(to right, #2290D9, #9EEECB); color: #fff; border: #fff 1px solid;}
/* ========== About Section ========== */
.about { background: var(--gray-50); }
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.about-content .section-desc { margin-bottom: 24px; }
.about-highlights { list-style: none; margin-top: 28px; }
.about-highlights li {
  display: flex; align-items: flex-start; gap: 12px;
  font-size: 15px; color: var(--gray-600); line-height: 1.7;
  margin-bottom: 16px;
}
.about-highlights li .check {
  width: 24px; height: 24px; background: rgba(52,211,153,.1);
  border-radius: 6px; display: flex; align-items: center; justify-content: center;
  color: #10b981; font-size: 14px; font-weight: 700; flex-shrink: 0; margin-top: 2px;
}
.about-visual {
  display: flex; justify-content: center;
}
.about-card-stack { position: relative; width: 380px; height: 400px; }
.about-card-item {
  position: absolute; border-radius: var(--radius-lg); padding: 28px;
  box-shadow: var(--shadow-lg); transition: all var(--transition);
}
.about-card-item:nth-child(1) {
  width: 340px; background: var(--white); top: 0; left: 20px;
  border: 1px solid var(--gray-100);
}
.about-card-item:nth-child(2) {
  width: 320px; background: linear-gradient(135deg, var(--blue-500), #2563eb);
  top: 120px; left: 40px; color: var(--white);
}
.about-card-item:nth-child(3) {
  width: 300px; background: var(--white); top: 240px; left: 60px;
  border: 1px solid var(--gray-100);
}
.about-card-item h4 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.about-card-item p { font-size: 14px; line-height: 1.7; }
.about-card-item:nth-child(2) p { opacity: .8; }

.about-content .section-desc { text-align: left; }
@media(max-width:768px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-visual { }
  .about-card-stack { width: 100%; height: 380px; }
}

/* ========== About Page — Mobile Responsive ========== */
/* privacy-hero / about-hero 标题移动端缩小 */
@media(max-width:768px) {
  .privacy-hero { padding: 100px 0 40px; }
  .privacy-hero .section-title { font-size: 26px !important; }
  .privacy-hero .section-desc { font-size: 14px; }
  /* 关于我们 hero 大标题缩小 */
  #page-about .privacy-hero .section-title { font-size: 26px !important; }
}

/* 使命与愿景 3列 → 1列 */
@media(max-width:768px) {
  .about-mission-grid {
    grid-template-columns: 1fr !important;
  }
}

/* 发展历程时间轴样式见下方 Timeline 区块 */

/* 团队文化卡片移动端：两列 → 单列 */
@media(max-width:480px) {
  .about-culture-card {
    min-width: 100% !important;
    flex: 1 1 100% !important;
  }
}

/* ========== Comparison Section ========== */
.comparison { background: var(--white); }
.compare-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.compare-card {
  padding: 36px; border-radius: var(--radius-lg); text-align: center;
  border: 2px solid var(--gray-200); transition: all var(--transition);
}
.compare-card.featured {
  border-color: var(--blue-500);
  background: linear-gradient(180deg, var(--blue-50), var(--white));
  transform: scale(1.03);
  box-shadow: var(--shadow-xl);
}
.compare-card.featured .compare-badge { width:68px;
  display: inline-block; }
.compare-card.featured .compare-badge img{ width: 100%;}
.compare-card h4 { font-size: 28px; font-weight: 700; color: var(--gray-900); margin-bottom: 24px; }
.compare-card ul { list-style: none; text-align: left; }
.compare-card ul li {
  padding: 8px 0; font-size: 14px; color: var(--gray-600);
  display: flex; align-items: center; gap: 10px; line-height: 1.5;
}
.compare-card ul li .icon { font-size: 16px; flex-shrink: 0; }
.compare-card ul li .icon.yes { color: #10b981; }
.compare-card ul li .icon.no { color: #ef4444; }

@media(max-width:768px) {
  .compare-grid { grid-template-columns: 1fr; }
  .compare-card.featured { transform: none; }
}

/* ========== Privacy Policy Page ========== */
.page { display: none; }
.page.active { display: block; }

.privacy-hero {
  padding: 140px 0 60px;
  background: linear-gradient(135deg, var(--blue-900), var(--blue-700));
  color: var(--white); text-align: center;
}
.privacy-content {
  max-width: 1200px; margin: 0 auto; padding: 40px 24px 0px;
}
.privacy-content h2 {
  font-size: 24px; font-weight: 700; color: var(--gray-900);
  margin: 40px 0 16px; padding-bottom: 12px;
  border-bottom: 2px solid var(--blue-100);
}
.privacy-content h3 {
  font-size: 18px; font-weight: 600; color: var(--gray-800);
  margin: 28px 0 12px;
}
.privacy-content p {
  font-size: 15px; color: var(--gray-600); line-height: 2;
  margin-bottom: 16px;
}
.privacy-content ul {
  padding-left: 20px; margin-bottom: 16px;
}
.privacy-content ul li {
  font-size: 15px; color: var(--gray-600); line-height: 2;
  margin-bottom: 4px;
}
.privacy-updated {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; background: var(--gray-100);
  border-radius: var(--radius-full); font-size: 13px; color: var(--gray-500);
  margin-top: 16px;
}

/* Privacy section cards */
.privacy-section {
  margin-bottom: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--gray-100);
}
.privacy-section:last-of-type {
  border-bottom: none;
}
.privacy-section-tag { text-align: center; align-items: center; gap: 6px;
  padding: 8px 20px; 
  color: #000;
  font-size: 32px; font-weight: 700; margin-bottom: 8px;
  letter-spacing: .02em;
}
.privacy-section-tags{ padding:8px 20px; background:var(--blue-50); border:1px solid var(--blue-100); border-radius:var(--radius-full); font-size:14px; font-weight:600; color:var(--blue-500); width: 150px; margin: 0 auto;}
.privacy-section-tag-tit{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:16px}
.privacy-section-tag-box{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.privacy-section-tag-msg{padding:20px; border-radius:var(--radius-md); background:var(--gray-50); border:1px solid var(--gray-200); align-items:flex-start;gap:14px;transition:all .3s; text-align: center;}
.privacy-section p { text-align: center;
  font-size: 15px; color: var(--gray-600); line-height: 2;
  margin-bottom: 8px;
}
@media(max-width:768px) {
  .privacy-section .grid-cols-3 {
    grid-template-columns: 1fr !important;
  }
  .privacy-section-tag-tit{display:grid;grid-template-columns:repeat(1,1fr);gap:16px;margin-top:16px}
  .privacy-section-tag-box{display:grid;grid-template-columns:repeat(1,1fr);gap:16px;}
}

/* ========== Footer ========== */
.footer {
  background: var(--gray-900); color: rgba(255,255,255,.6);
  padding: 64px 0 32px;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px;
  margin-bottom: 48px;
}
.footer-brand .nav-logo { color: var(--white); margin-bottom: 16px; }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 280px; }
.footer-col h5 {
  font-size: 14px; font-weight: 700; color: var(--white);
  text-transform: uppercase; letter-spacing: .05em;
  margin-bottom: 20px;
}
.footer-col a {
  display: block; font-size: 14px; color: rgba(255,255,255,.5);
  padding: 6px 0; transition: color var(--transition);
}
.footer-col a:hover { color: var(--blue-300); }
.footer-bottom { text-align: center;
  padding-top: 32px; border-top: 1px solid rgba(255,255,255,.08);
  font-size: 13px;
}
.footer-bottom-links { display: flex; gap: 24px; }
.footer-bottom-links a:hover { color: var(--white); }

@media(max-width:768px) {
  .footer {
  background: var(--gray-900); color: rgba(255,255,255,.6);
  padding: 22px 0 22px 0;
}
	.footer .container{padding: 0 25px;}
  .footer-col{ display: none;}
  .footer-brand p {  max-width: 100%; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; margin-bottom: 28px;}
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; padding-top: 22px;}
}
@media(max-width:480px) {
  .footer-grid { grid-template-columns: 1fr; }
}


/* ========== Scroll Animations ========== */
.fade-in-box{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px;}
.fade-in {
  opacity: 0; transform: translateY(30px);
  transition: opacity .6s ease, transform .6s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

@media(max-width:768px) {
  .fade-in-box{ display:grid; grid-template-columns:repeat(1,1fr); gap:15px;}
}
/* ========== Back to Top ========== */
.back-top {
  position: fixed; bottom: 32px; right: 32px;
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--blue-500); color: var(--white);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; box-shadow: 0 4px 15px rgba(26,86,219,.3);
  opacity: 0; transform: translateY(20px);
  transition: all var(--transition); z-index: 100; cursor: pointer;
}
.back-top.show { opacity: 1; transform: translateY(0); }
.back-top:hover { background: var(--blue-600); transform: translateY(-2px); }


/* ========== Timeline ========== */
/* 桌面端：左右交替布局 */
.tl-line {
  position: absolute; left: 50%; top: 0; bottom: 0;
  width: 2px; background: var(--blue-200);
  transform: translateX(-50%); border-radius: 10px;
}
.tl-item {
  display: flex; align-items: flex-start;
  gap: 40px; margin-bottom: 48px; position: relative;
}
.tl-item:last-child { margin-bottom: 0; }
.tl-spacer { flex: 1; }
.tl-content { flex: 1; }
.tl-left .tl-content { text-align: right; padding-right: 40px; }
.tl-right .tl-content { text-align: left; padding-left: 40px; }
.tl-year {
  display: inline-block; padding: 6px 18px;
  background: var(--blue-500); color: #fff;
  border-radius: var(--radius-full);
  font-size: 14px; font-weight: 700; margin-bottom: 12px;
}
.tl-title {
  font-size: 18px; font-weight: 700;
  color: var(--gray-900); margin-bottom: 8px;
}
.tl-desc {
  font-size: 14px; color: var(--gray-500); line-height: 1.8;
}

/* 移动端：左侧竖线 + 单列 */
@media(max-width:768px) {
  .tl-line { left: 20px; transform: none; }
  .tl-item {
    display: block;
    padding-left: 52px;
    margin-bottom: 36px;
  }
  .tl-spacer { display: none; }
  .tl-left .tl-content,
  .tl-right .tl-content {
    text-align: left;
    padding: 0;
    width: 100%;
  }
  .tl-item .lc_dian {
    left: 20px !important;
    transform: none !important;
    top: 4px !important;
  }
}