/* =========================================
   铭赞网络 · Google广告推广营销网站
   Custom styles & animations
   ========================================= */

* {
  scroll-behavior: smooth;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "kern" 1;
}

/* ============ 通用排版 ============ */
.eyebrow {
  display: inline-block;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: #1a73e8;
  text-transform: uppercase;
  padding: 4px 12px;
  background: rgba(66, 133, 244, 0.1);
  border-radius: 999px;
}

.section-title {
  font-family: "Space Grotesk", "Noto Sans SC", sans-serif;
  font-size: clamp(1.875rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  color: #0f172a;
  margin-top: 1rem;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.section-sub {
  font-size: 1rem;
  line-height: 1.7;
  color: #64748b;
  max-width: 640px;
  margin: 0 auto;
}

.gradient-text {
  background: linear-gradient(135deg, #4285f4 0%, #1a73e8 50%, #ff6b35 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: gradientX 8s ease infinite;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background: #ff6b35;
  color: white;
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: 8px;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 14px rgba(255, 107, 53, 0.3);
  text-decoration: none;
}

.cta-btn:hover {
  background: #f4511e;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.45);
  color: white;
}

/* ============ 顶部导航 ============ */
#navbar {
  background: transparent;
  backdrop-filter: blur(0);
  -webkit-backdrop-filter: blur(0);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

#navbar.scrolled {
  background: rgba(10, 37, 64, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 4px 24px -4px rgba(0, 0, 0, 0.2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.logo-mark {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  line-height: 1;
}

.reg-mark {
  font-size: 0.5em;
  vertical-align: super;
  color: #ff6b35;
  font-weight: 700;
  margin-left: 1px;
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 0.5rem 0.875rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  border-radius: 6px;
  transition: all 0.25s ease;
}

.nav-link::before {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 24px;
  height: 2px;
  background: #ff6b35;
  border-radius: 2px;
  transition: transform 0.3s ease;
}

.nav-link:hover {
  color: white;
  background: rgba(255, 255, 255, 0.08);
}

.nav-link:hover::before {
  transform: translateX(-50%) scaleX(1);
}

.mobile-link {
  display: block;
  padding: 1rem 0;
  font-size: 1.25rem;
  font-weight: 500;
  color: white;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  text-decoration: none;
  transition: color 0.2s ease;
}

.mobile-link:hover {
  color: #ff6b35;
}

/* ============ Hero 区域 ============ */
.hero {
  background: linear-gradient(135deg, #0a2540 0%, #185abc 50%, #1a73e8 100%);
  background-size: 200% 200%;
  animation: gradientX 12s ease infinite;
}

.hero-bg {
  z-index: 0;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(
    ellipse at center,
    black 30%,
    transparent 80%
  );
}

.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  animation: float 10s ease-in-out infinite;
}

.hero-blob-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, #4285f4 0%, transparent 70%);
  top: -200px;
  right: -100px;
}

.hero-blob-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, #ff6b35 0%, transparent 70%);
  bottom: -150px;
  left: -100px;
  animation-delay: -3s;
  opacity: 0.3;
}

.hero-blob-3 {
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, #8ab4f8 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: -5s;
  opacity: 0.2;
}

.hero-noise {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='100' height='100'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.4 0'/%3E%3C/filter%3E%3Crect width='100' height='100' filter='url(%23n)' opacity='0.4'/%3E%3C/svg%3E");
  opacity: 0.03;
  pointer-events: none;
}

.reveal-line {
  opacity: 0;
  transform: translateY(40px);
  animation: fadeUp 0.8s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.reveal-line:nth-child(1) {
  animation-delay: 0.1s;
}
.reveal-line:nth-child(2) {
  animation-delay: 0.3s;
}
.reveal-line:nth-child(3) {
  animation-delay: 0.5s;
}

.reveal-fade {
  opacity: 0;
  animation: fadeIn 1s ease 0.7s forwards;
}

/* ============ 玻璃拟态卡片 ============ */
.glass-card {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 16px;
  box-shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.4);
}

.glass-card-sm {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 12px;
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.3);
    white-space: nowrap;
}

.glass-card-sm > div {
    min-width: 0;
}

.hero-card {
    position: relative;
    padding: 1rem;
}

.chart-bar {
  transition: height 0.6s cubic-bezier(0.22, 1, 0.36, 1);
  animation: chartGrow 1s ease forwards;
  transform-origin: bottom;
}

@keyframes chartGrow {
  from {
    transform: scaleY(0);
    opacity: 0;
  }
  to {
    transform: scaleY(1);
    opacity: 1;
  }
}

/* ============ 数据条 ============ */
.stat-item {
  padding: 1rem 0;
  border-left: 2px solid rgba(255, 255, 255, 0.2);
  padding-left: 1rem;
  opacity: 0;
  animation: fadeUp 0.6s ease 1s forwards;
}

.stat-item:nth-child(2) {
  animation-delay: 1.1s;
}
.stat-item:nth-child(3) {
  animation-delay: 1.2s;
}
.stat-item:nth-child(4) {
  animation-delay: 1.3s;
}

.stat-num {
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.75rem;
  font-weight: 700;
  color: white;
  line-height: 1;
}

.stat-label {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 0.25rem;
}

/* ============ 信任带 / 客户名 ============ */
.brand-name {
  font-family: "Space Grotesk", "Noto Sans SC", sans-serif;
  font-size: 1.25rem;
  font-weight: 600;
  color: #94a3b8;
  letter-spacing: 0.05em;
  transition: color 0.3s;
  flex-shrink: 0;
}

.brand-name:hover {
  color: #1a73e8;
}

.brand-sep {
  color: #cbd5e1;
  font-size: 0.5rem;
}

.mask-fade {
  mask-image: linear-gradient(
    to right,
    transparent,
    black 5%,
    black 95%,
    transparent
  );
  -webkit-mask-image: linear-gradient(
    to right,
    transparent,
    black 5%,
    black 95%,
    transparent
  );
}

.ticker-track {
  width: max-content;
}

/* ============ 服务卡片 ============ */
.service-card {
  position: relative;
  padding: 2rem 1.75rem;
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
  opacity: 0;
  animation: fadeUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  animation-delay: var(--delay, 0s);
}

.service-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #4285f4, #ff6b35);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: transparent;
  box-shadow: 0 20px 50px -10px rgba(10, 37, 64, 0.15);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: linear-gradient(
    135deg,
    rgba(66, 133, 244, 0.1) 0%,
    rgba(255, 107, 53, 0.1) 100%
  );
  color: #1a73e8;
  margin-bottom: 1.25rem;
  transition: all 0.3s ease;
}

.service-icon svg {
  width: 28px;
  height: 28px;
}

.service-card:hover .service-icon {
  background: linear-gradient(135deg, #4285f4, #1a73e8);
  color: white;
  transform: rotate(-6deg) scale(1.05);
}

.service-title {
  font-family: "Space Grotesk", "Noto Sans SC", sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 0.625rem;
  letter-spacing: -0.01em;
}

.service-desc {
  font-size: 0.875rem;
  line-height: 1.6;
  color: #64748b;
  margin-bottom: 1rem;
}

.service-list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.25rem 0;
}

.service-list li {
  position: relative;
  padding: 0.25rem 0 0.25rem 1.5rem;
  font-size: 0.8125rem;
  color: #475569;
}

.service-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6875rem;
  width: 14px;
  height: 6px;
  border-left: 2px solid #4285f4;
  border-bottom: 2px solid #4285f4;
  transform: rotate(-45deg);
}

.service-link {
  display: inline-flex;
  align-items: center;
  font-size: 0.875rem;
  font-weight: 600;
  color: #1a73e8;
  text-decoration: none;
  transition: all 0.3s ease;
}

.service-link:hover {
  color: #ff6b35;
  transform: translateX(4px);
}

/* ============ 15年+ 优势区 ============ */
.badge-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.4rem 0.9rem;
  background: rgba(255, 107, 53, 0.15);
  color: #ffb088;
  border: 1px solid rgba(255, 107, 53, 0.3);
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 500;
}

.adv-card {
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
  opacity: 0;
  animation: fadeUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  animation-delay: var(--delay, 0s);
}

.adv-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(66, 133, 244, 0.3);
  transform: translateY(-3px);
}

.adv-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: linear-gradient(135deg, #4285f4, #1a73e8);
  color: white;
  margin-bottom: 1rem;
}

.adv-icon svg {
  width: 24px;
  height: 24px;
}

.adv-card h4 {
  font-size: 1.0625rem;
  font-weight: 600;
  color: white;
  margin-bottom: 0.5rem;
}

.adv-card p {
  font-size: 0.875rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.65);
}

.big-stat {
  text-align: center;
  padding: 2rem 1rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  transition: all 0.3s ease;
}

.big-stat:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-3px);
}

.big-stat-num {
  font-family: "Space Grotesk", sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.big-stat-label {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
}

/* ============ 服务流程 ============ */
.process-step {
  text-align: center;
  position: relative;
  opacity: 0;
  animation: fadeUp 0.7s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  animation-delay: var(--delay, 0s);
}

.step-circle {
  position: relative;
  width: 80px;
  height: 80px;
  margin: 0 auto 1.25rem;
  background: white;
  border: 2px solid #e2e8f0;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Space Grotesk", monospace;
  font-size: 1.5rem;
  font-weight: 700;
  color: #1a73e8;
  transition: all 0.3s ease;
  z-index: 2;
}

.process-step:hover .step-circle {
  background: linear-gradient(135deg, #4285f4, #1a73e8);
  color: white;
  border-color: transparent;
  transform: scale(1.05);
  box-shadow: 0 12px 30px -8px rgba(66, 133, 244, 0.4);
}

.step-title {
  font-family: "Space Grotesk", "Noto Sans SC", sans-serif;
  font-size: 1.0625rem;
  font-weight: 600;
  color: #0f172a;
  margin-bottom: 0.5rem;
}

.step-desc {
  font-size: 0.8125rem;
  line-height: 1.6;
  color: #64748b;
  max-width: 180px;
  margin: 0 auto;
}

/* ============ 行业方案 ============ */
.industry-card {
  text-align: center;
  padding: 1.75rem 1rem;
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: default;
  opacity: 0;
  animation: fadeUp 0.6s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  animation-delay: var(--delay, 0s);
}

.industry-card:hover {
  border-color: #4285f4;
  transform: translateY(-4px);
  box-shadow: 0 12px 28px -8px rgba(66, 133, 244, 0.2);
}

.industry-emoji {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
  transition: transform 0.3s ease;
}

.industry-card:hover .industry-emoji {
  transform: scale(1.15) rotate(-5deg);
}

.industry-card h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: #0f172a;
  margin-bottom: 0.25rem;
}

.industry-card p {
  font-size: 0.75rem;
  color: #64748b;
  line-height: 1.5;
}

/* ============ FAQ ============ */
.faq-item {
  background: white;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.faq-item[open] {
  border-color: #4285f4;
  box-shadow: 0 8px 24px -6px rgba(66, 133, 244, 0.15);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background 0.2s ease;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary:hover {
  background: rgba(66, 133, 244, 0.03);
}

.faq-q {
  font-size: 1rem;
  font-weight: 600;
  color: #0f172a;
  line-height: 1.5;
  flex: 1;
}

.faq-icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, #4285f4, #1a73e8);
  color: white;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-icon svg {
  width: 16px;
  height: 16px;
  transition: transform 0.3s ease;
}

.faq-item[open] .faq-icon svg {
  transform: rotate(45deg);
}

.faq-a {
  padding: 0 1.5rem 1.5rem 1.5rem;
  color: #475569;
  font-size: 0.9375rem;
  line-height: 1.75;
  border-top: 1px solid #f1f5f9;
  padding-top: 1rem;
  animation: fadeUp 0.4s ease;
}

.faq-a p {
  margin: 0;
}

.faq-a a {
  color: #1a73e8;
  text-decoration: none;
  border-bottom: 1px dashed currentColor;
}

.faq-a a:hover {
  color: #ff6b35;
  border-bottom-style: solid;
}

/* ============ 联系方式 ============ */
.contact-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.5rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  color: white;
  text-decoration: none;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.contact-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(66, 133, 244, 0.4);
  transform: translateY(-2px);
  color: white;
}

.contact-icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: linear-gradient(135deg, #4285f4, #1a73e8);
  color: white;
}

.contact-icon svg {
  width: 22px;
  height: 22px;
}

.contact-label {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 0.25rem;
  letter-spacing: 0.05em;
}

.contact-value {
  font-family: "Space Grotesk", "Noto Sans SC", sans-serif;
  font-size: 1.125rem;
  font-weight: 600;
  color: white;
  line-height: 1.3;
}

.contact-hint {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.55);
  margin-top: 0.25rem;
}

/* ============ 二维码卡片 ============ */
.qr-card {
  padding: 2rem 1.5rem;
  background: white;
  border-radius: 16px;
  text-align: center;
  color: #0f172a;
  box-shadow: 0 20px 50px -10px rgba(0, 0, 0, 0.3);
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.qr-frame {
  width: 200px;
  height: 200px;
  border-radius: 12px;
  overflow: hidden;
  background: #f1f5f9;
  margin-bottom: 1.25rem;
  border: 2px solid #4285f4;
  padding: 8px;
}

.qr-frame img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.qr-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 0.5rem;
}

.qr-desc {
  font-size: 0.875rem;
  color: #64748b;
  line-height: 1.6;
  margin-bottom: 1rem;
}

.qr-tag {
  display: inline-block;
  padding: 0.4rem 0.875rem;
  background: rgba(66, 133, 244, 0.1);
  color: #1a73e8;
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 600;
  font-family: "Space Grotesk", monospace;
}

.promise {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  color: white;
  font-size: 0.875rem;
  transition: all 0.3s ease;
}

.promise:hover {
  background: rgba(66, 133, 244, 0.15);
  border-color: rgba(66, 133, 244, 0.4);
}

.promise svg {
  width: 18px;
  height: 18px;
  color: #34d399;
  flex-shrink: 0;
}

/* ============ Footer ============ */
.friend-link {
  display: block;
  padding: 0.5rem 0.75rem;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.65);
  text-decoration: none;
  border-radius: 6px;
  transition: all 0.2s ease;
  text-align: center;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.friend-link:hover {
  color: #ff6b35;
  background: rgba(255, 107, 53, 0.08);
  border-color: rgba(255, 107, 53, 0.2);
  transform: translateY(-1px);
}

/* ============ 浮动按钮 ============ */
.float-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  color: white;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
  position: relative;
  border: none;
  cursor: pointer;
}

.float-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.float-btn-tel {
  background: linear-gradient(135deg, #4285f4, #1a73e8);
}

.float-btn-wechat {
  background: linear-gradient(135deg, #07c160, #06ad56);
}

.float-btn-top {
  background: linear-gradient(135deg, #ff6b35, #f4511e);
}

.float-tip {
  position: absolute;
  right: calc(100% + 8px);
  top: 50%;
  transform: translateY(-50%) translateX(8px);
  background: rgba(10, 37, 64, 0.95);
  color: white;
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  font-size: 0.75rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s ease;
}

.float-btn:hover .float-tip {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
}

/* ============ 滚动揭示动画 ============ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============ 关键动画 ============ */
@keyframes fadeUp {
  0% {
    opacity: 0;
    transform: translateY(24px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-12px);
  }
}

@keyframes gradientX {
  0%,
  100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* ============ 响应式调整 ============ */
@media (max-width: 640px) {
  .stat-num {
    font-size: 1.5rem;
  }

  .big-stat-num {
    font-size: 2rem;
  }

  .step-circle {
    width: 64px;
    height: 64px;
    font-size: 1.25rem;
  }

  .qr-frame {
    width: 160px;
    height: 160px;
  }
}

/* ============ 可访问性 ============ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* 焦点环 */
a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid #ff6b35;
  outline-offset: 2px;
  border-radius: 4px;
}

/* 选中文本 */
::selection {
  background: #ff6b35;
  color: white;
}