/* ==========================================================================
   慈善机场 (Charity Airport) - 孟菲斯波普风格 (Memphis Pop) 样式表
   色彩体系: 米黄奶油色底色, 纯黑描边, 艳黄, 品红, 亮青, 荧光绿, 炫紫
   ========================================================================== */

:root {
  --bg-cream: #fff8e7;
  --black: #000000;
  --white: #ffffff;
  --yellow: #ffd23f;
  --magenta: #ff3d7f;
  --cyan: #3fc7ff;
  --lime: #7ce862;
  --purple: #9b5de5;
  --border-thick: 3px solid #000000;
  --border-chunky: 4px solid #000000;
  --shadow-main: 8px 8px 0 #000000;
  --shadow-sm: 4px 4px 0 #000000;
  --shadow-lg: 12px 12px 0 #000000;
  --shadow-magenta: 8px 8px 0 #ff3d7f;
  --shadow-cyan: 8px 8px 0 #3fc7ff;
  --shadow-yellow: 8px 8px 0 #ffd23f;
  --font-heading: 'Archivo Black', -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-body: 'Space Grotesk', -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: 'DM Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--bg-cream);
  color: var(--black);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  position: relative;
  overflow-x: hidden;
  min-height: 100vh;
}

/* 浮动彩色光晕背景 (Parallax & Keyframe Drift) */
.bg-blobs {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
  transition: transform 0.2s cubic-bezier(0.1, 0.9, 0.2, 1);
  animation: blobFloat 16s ease-in-out infinite alternate;
}

.blob-1 {
  width: 480px;
  height: 480px;
  background-color: var(--magenta);
  top: -100px;
  left: -80px;
  animation-duration: 20s;
}

.blob-2 {
  width: 520px;
  height: 520px;
  background-color: var(--cyan);
  top: 30%;
  right: -120px;
  animation-duration: 24s;
  animation-delay: -5s;
}

.blob-3 {
  width: 440px;
  height: 440px;
  background-color: var(--lime);
  bottom: 10%;
  left: 15%;
  animation-duration: 18s;
  animation-delay: -8s;
}

.blob-4 {
  width: 460px;
  height: 460px;
  background-color: var(--purple);
  bottom: -150px;
  right: 20%;
  animation-duration: 22s;
  animation-delay: -12s;
}

@keyframes blobFloat {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(60px, 40px) scale(1.12); }
  100% { transform: translate(-40px, 80px) scale(0.92); }
}

/* 页面核心容器 */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 2;
}

/* 顶部粘性黑色导航栏 (Sticky Nav) */
.navbar {
  position: sticky;
  top: 0;
  width: 100%;
  background-color: var(--black);
  color: var(--white);
  border-bottom: var(--border-chunky);
  z-index: 1000;
  padding: 14px 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

.brand-group {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--white);
}

.plane-mark {
  width: 48px;
  height: 48px;
  background-color: var(--yellow);
  color: var(--black);
  border: 3px solid var(--black);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  transform: rotate(-8deg);
  box-shadow: 4px 4px 0 var(--magenta);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.brand-group:hover .plane-mark {
  transform: rotate(12deg) scale(1.1);
  box-shadow: 6px 6px 0 var(--cyan);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 900;
  letter-spacing: 1px;
  color: var(--white);
  line-height: 1.1;
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--yellow);
  letter-spacing: 1px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  list-style: none;
}

.nav-link {
  color: var(--white);
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 800;
  padding: 6px 14px;
  border-radius: 4px;
  border: 2px solid transparent;
  transition: all 0.2s cubic-bezier(0.2, 0.9, 0.3, 1);
  display: inline-block;
}

.nav-link:hover {
  background-color: var(--yellow);
  color: var(--black);
  border-color: var(--black);
  transform: translateY(-4px) rotate(-2deg);
  box-shadow: 4px 4px 0 var(--magenta);
}

.nav-link.accent {
  background-color: var(--magenta);
  color: var(--white);
  border: 2px solid var(--black);
  transform: rotate(1deg);
  box-shadow: 3px 3px 0 var(--yellow);
}

.nav-link.accent:hover {
  background-color: var(--cyan);
  color: var(--black);
  transform: translateY(-4px) rotate(-3deg);
  box-shadow: 5px 5px 0 var(--lime);
}

.btn-nav-cta {
  background-color: var(--yellow);
  color: var(--black);
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 900;
  padding: 10px 22px;
  border: var(--border-thick);
  border-radius: 6px;
  box-shadow: var(--shadow-sm);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.15s ease;
  cursor: pointer;
}

.btn-nav-cta:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 #000;
  background-color: var(--lime);
}

/* 通用孟菲斯按钮 */
.btn-chunky {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 900;
  text-decoration: none;
  padding: 16px 30px;
  border: var(--border-chunky);
  border-radius: 8px;
  box-shadow: var(--shadow-main);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.2s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.btn-chunky:hover {
  transform: translate(4px, 4px);
  box-shadow: 4px 4px 0 #000;
}

.btn-chunky:active {
  transform: translate(8px, 8px);
  box-shadow: 0 0 0 #000;
}

.btn-yellow {
  background-color: var(--yellow);
  color: var(--black);
}
.btn-yellow:hover {
  background-color: #ffd859;
}

.btn-pink {
  background-color: var(--magenta);
  color: var(--white);
}
.btn-pink:hover {
  background-color: #ff5c93;
}

.btn-cyan {
  background-color: var(--cyan);
  color: var(--black);
}

.btn-lime {
  background-color: var(--lime);
  color: var(--black);
}

/* 涟漪动效 */
.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.7);
  transform: scale(0);
  animation: rippleAnimation 0.6s linear;
  pointer-events: none;
}

@keyframes rippleAnimation {
  to {
    transform: scale(4);
    opacity: 0;
  }
}

/* Hero 区域 (左右两列分栏) */
.hero-section {
  padding: 70px 0 60px 0;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 50px;
  align-items: center;
}

.hero-tag-chip {
  display: inline-block;
  background-color: var(--lime);
  color: var(--black);
  border: var(--border-thick);
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 900;
  padding: 8px 18px;
  border-radius: 6px;
  box-shadow: var(--shadow-sm);
  transform: rotate(-3deg);
  margin-bottom: 24px;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 52px;
  line-height: 1.18;
  font-weight: 900;
  color: var(--black);
  margin-bottom: 22px;
  letter-spacing: -0.5px;
}

.title-box-yellow {
  display: inline-block;
  background-color: var(--yellow);
  border: var(--border-thick);
  padding: 2px 14px;
  border-radius: 6px;
  box-shadow: 6px 6px 0 var(--magenta);
  transform: rotate(-2deg);
  margin: 0 4px;
}

.title-text-magenta {
  color: var(--magenta);
  display: inline-block;
  text-shadow: 2px 2px 0 #000, -2px -2px 0 #000, 2px -2px 0 #000, -2px 2px 0 #000;
  transform: rotate(2deg);
  margin-left: 4px;
}

.hero-lead {
  font-size: 19px;
  line-height: 1.7;
  color: #222;
  margin-bottom: 34px;
  background-color: rgba(255, 255, 255, 0.7);
  padding: 14px 18px;
  border: 2px dashed var(--black);
  border-radius: 8px;
}

.hero-btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-bottom: 38px;
}

/* 状态药丸标签 */
.hero-stats-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.stat-pill {
  padding: 10px 18px;
  border: var(--border-thick);
  border-radius: 50px;
  box-shadow: var(--shadow-sm);
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: transform 0.2s ease;
}

.stat-pill:hover {
  transform: translateY(-4px) scale(1.05);
}

.stat-pill-1 {
  background-color: var(--yellow);
  transform: rotate(-2deg);
}

.stat-pill-2 {
  background-color: var(--cyan);
  transform: rotate(3deg);
}

.stat-pill-3 {
  background-color: var(--purple);
  color: var(--white);
  transform: rotate(-1deg);
}

/* Hero 右侧卡片叠放动效 (Card Stack Fan-Out) */
.card-stack-wrapper {
  position: relative;
  min-height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stack-card {
  position: absolute;
  width: 320px;
  border: var(--border-chunky);
  border-radius: 14px;
  box-shadow: var(--shadow-main);
  padding: 26px 22px;
  transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.25, 1), box-shadow 0.35s ease;
  cursor: pointer;
}

.card-top {
  background-color: var(--yellow);
  transform: rotate(6deg) translateY(-20px);
  z-index: 3;
}

.card-mid {
  background-color: var(--cyan);
  transform: rotate(-4deg);
  z-index: 2;
  text-align: center;
}

.card-bot {
  background-color: var(--magenta);
  color: var(--white);
  transform: rotate(10deg) translateY(30px);
  z-index: 1;
}

/* 悬停展开 (Fan out) */
.card-stack-wrapper:hover .card-top {
  transform: rotate(-10deg) translate(-50px, -60px);
  box-shadow: 12px 12px 0 #000;
}

.card-stack-wrapper:hover .card-mid {
  transform: rotate(0deg) scale(1.05);
  box-shadow: 12px 12px 0 #000;
}

.card-stack-wrapper:hover .card-bot {
  transform: rotate(14deg) translate(60px, 60px);
  box-shadow: 12px 12px 0 #000;
}

.card-badge {
  display: inline-block;
  background-color: var(--black);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 4px 10px;
  border-radius: 4px;
  margin-bottom: 12px;
}

.card-huge-icon {
  font-size: 48px;
  line-height: 1;
  margin: 12px 0;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 900;
  line-height: 1.2;
}

.card-desc {
  font-size: 14px;
  font-weight: 600;
  margin-top: 8px;
}

/* 无限跑马灯条 (Infinite Scrolling Marquee Strip) */
.marquee-strip {
  width: 100%;
  background-color: var(--black);
  border-top: var(--border-chunky);
  border-bottom: var(--border-chunky);
  padding: 16px 0;
  overflow: hidden;
  white-space: nowrap;
  display: flex;
  margin: 30px 0 60px 0;
  box-shadow: 0 6px 0 rgba(0, 0, 0, 0.15);
}

.marquee-content {
  display: flex;
  align-items: center;
  gap: 36px;
  animation: marqueeScroll 22s linear infinite;
  flex-shrink: 0;
}

.marquee-item {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: 1px;
}

.m-yellow { color: var(--yellow); }
.m-magenta { color: var(--magenta); }
.m-cyan { color: var(--cyan); }
.m-lime { color: var(--lime); }
.m-purple { color: #d6a4ff; }

@keyframes marqueeScroll {
  0% { transform: translateX(0%); }
  100% { transform: translateX(-50%); }
}

/* 核心特性区 (3D 交互倾斜卡片) */
.features-section {
  padding: 60px 0;
}

.section-header {
  margin-bottom: 46px;
}

.section-tag {
  display: inline-block;
  background-color: var(--yellow);
  color: var(--black);
  border: var(--border-thick);
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 900;
  padding: 6px 14px;
  border-radius: 4px;
  box-shadow: var(--shadow-sm);
  transform: rotate(-2deg);
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 40px;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 12px;
}

.section-sub {
  font-size: 18px;
  color: #444;
  max-width: 680px;
}

.cards-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  perspective: 1000px;
}

.tilt-card {
  position: relative;
  background-color: var(--white);
  border: var(--border-chunky);
  border-radius: 12px;
  box-shadow: var(--shadow-main);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transform-style: preserve-3d;
  transition: transform 0.15s ease-out, box-shadow 0.2s ease;
  cursor: pointer;
}

.tilt-card:hover {
  box-shadow: var(--shadow-lg);
}

.card-cover {
  padding: 24px;
  border-bottom: var(--border-thick);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cover-yellow { background-color: var(--yellow); }
.cover-magenta { background-color: var(--magenta); color: var(--white); }
.cover-cyan { background-color: var(--cyan); }

.card-badge-pill {
  background-color: var(--black);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 4px;
  transform: rotate(-3deg);
}

.card-cover-icon {
  font-size: 42px;
}

.card-body {
  padding: 26px 22px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  background-color: var(--white);
}

.card-h3 {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 900;
  margin-bottom: 12px;
  line-height: 1.3;
}

.card-text {
  font-size: 15px;
  color: #333;
  margin-bottom: 22px;
  flex-grow: 1;
}

/* 粗壮进度条 (Chunky 14px Progress Bar) */
.progress-container {
  margin-top: auto;
}

.progress-label {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 6px;
}

.chunky-progress {
  width: 100%;
  height: 16px;
  background-color: #eee;
  border: var(--border-thick);
  border-radius: 8px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  border-right: 2px solid var(--black);
  transition: width 1s ease-in-out;
}

.bg-lime { background-color: var(--lime); }
.bg-magenta { background-color: var(--magenta); }
.bg-cyan { background-color: var(--cyan); }

/* 光斑遮罩 (Glare) */
.glare {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.45) 0%, rgba(255, 255, 255, 0) 70%);
  opacity: 0;
  transition: opacity 0.2s ease;
  mix-blend-mode: overlay;
}

/* 流媒体与 AI 支持图卡区域 */
.stream-ai-section {
  padding: 60px 0;
}

.stream-card-box {
  background-color: var(--white);
  border: var(--border-chunky);
  border-radius: 14px;
  box-shadow: var(--shadow-main);
  padding: 40px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.badge-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.badge-item {
  border: var(--border-thick);
  border-radius: 8px;
  padding: 16px 12px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all 0.2s ease;
}

.badge-item:hover {
  transform: translate(-2px, -3px) rotate(2deg);
  box-shadow: 6px 6px 0 #000;
}

.badge-name {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 900;
  display: block;
}

.badge-desc {
  font-family: var(--font-mono);
  font-size: 12px;
  margin-top: 4px;
  display: block;
}

/* 套餐价格对比表 */
.pricing-section {
  padding: 70px 0;
}

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

.pricing-card {
  background-color: var(--white);
  border: var(--border-chunky);
  border-radius: 14px;
  box-shadow: var(--shadow-main);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.pricing-card.featured {
  background-color: #fffde8;
  border-width: 5px;
  box-shadow: 10px 10px 0 var(--magenta);
  transform: scale(1.03);
}

.pricing-card.featured:hover {
  transform: scale(1.03) translateY(-8px);
  box-shadow: 14px 14px 0 var(--magenta);
}

.featured-ribbon {
  position: absolute;
  top: -16px;
  right: 20px;
  background-color: var(--magenta);
  color: var(--white);
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 900;
  padding: 6px 14px;
  border: 3px solid var(--black);
  border-radius: 6px;
  box-shadow: 3px 3px 0 #000;
  transform: rotate(3deg);
}

.plan-name {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 900;
  margin-bottom: 8px;
}

.plan-price-box {
  margin: 18px 0 24px 0;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.currency {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 900;
}

.amount {
  font-family: var(--font-heading);
  font-size: 52px;
  font-weight: 900;
  line-height: 1;
}

.period {
  font-family: var(--font-mono);
  font-size: 16px;
  color: #555;
  font-weight: 700;
}

.plan-features-list {
  list-style: none;
  margin-bottom: 30px;
  flex-grow: 1;
}

.plan-features-list li {
  padding: 10px 0;
  border-bottom: 2px dashed #ddd;
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
}

.plan-features-list li span.check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  background-color: var(--lime);
  border: 2px solid var(--black);
  border-radius: 50%;
  font-size: 13px;
  font-weight: 900;
  flex-shrink: 0;
}

/* 使用步骤 (How It Works) */
.how-section {
  padding: 60px 0;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.step-card {
  border: var(--border-chunky);
  border-radius: 12px;
  box-shadow: var(--shadow-main);
  padding: 34px 26px;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.step-card:hover {
  transform: translateY(-8px) rotate(0deg) !important;
  box-shadow: var(--shadow-lg);
}

.step-lime {
  background-color: var(--lime);
  transform: rotate(-2deg);
}

.step-cyan {
  background-color: var(--cyan);
  transform: rotate(3deg);
}

.step-purple {
  background-color: var(--purple);
  color: var(--white);
  transform: rotate(-1deg);
}

.step-num {
  font-family: var(--font-heading);
  font-size: 54px;
  font-weight: 900;
  line-height: 1;
  margin-bottom: 14px;
  opacity: 0.85;
}

.step-title {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 900;
  margin-bottom: 10px;
}

.step-desc {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
}

/* 用户评价 (User Reviews) */
.reviews-section {
  padding: 60px 0;
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.review-card {
  background-color: var(--white);
  border: var(--border-chunky);
  border-radius: 12px;
  box-shadow: var(--shadow-main);
  padding: 28px 22px;
  position: relative;
  transition: transform 0.2s ease;
}

.review-card:hover {
  transform: translateY(-4px) rotate(1deg);
}

.review-user-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.user-avatar {
  width: 48px;
  height: 48px;
  border: 3px solid var(--black);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 900;
}

.user-meta-name {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 900;
}

.user-meta-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: #666;
}

.review-stars {
  color: #ff9800;
  font-size: 18px;
  margin-bottom: 10px;
}

.review-text {
  font-size: 15px;
  color: #333;
  line-height: 1.6;
}

/* 常见问题 (FAQ) */
.faq-section {
  padding: 60px 0 80px 0;
}

.faq-list {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.faq-item {
  background-color: var(--white);
  border: var(--border-chunky);
  border-radius: 10px;
  box-shadow: var(--shadow-main);
  overflow: hidden;
  transition: transform 0.2s ease;
}

.faq-item:hover {
  transform: translateX(4px);
}

.faq-question {
  padding: 22px 24px;
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 900;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  background-color: var(--white);
}

.faq-toggle-icon {
  font-size: 24px;
  font-family: var(--font-mono);
  transition: transform 0.2s ease;
}

.faq-answer {
  padding: 0 24px 22px 24px;
  font-size: 16px;
  color: #333;
  line-height: 1.7;
  border-top: 2px dashed #eee;
  padding-top: 16px;
}

/* 底部行动召集面板 (CTA Banner) */
.cta-banner-section {
  padding: 20px 0 70px 0;
}

.cta-panel {
  background-color: var(--black);
  color: var(--white);
  border: var(--border-chunky);
  border-radius: 20px;
  box-shadow: var(--shadow-magenta);
  padding: 60px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-deco-circle {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.deco-1 {
  width: 160px;
  height: 160px;
  border: 4px solid var(--yellow);
  top: -40px;
  left: -40px;
}

.deco-2 {
  width: 120px;
  height: 120px;
  background-color: var(--cyan);
  opacity: 0.2;
  bottom: -30px;
  right: -30px;
}

.cta-headline {
  font-family: var(--font-heading);
  font-size: 46px;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 18px;
}

.cta-time-yellow {
  color: var(--yellow);
  text-decoration: underline;
  text-decoration-thickness: 6px;
}

.cta-desc {
  font-size: 18px;
  color: #ddd;
  max-width: 600px;
  margin: 0 auto 34px auto;
}

.cta-buttons-wrap {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
}

/* 页脚 (Footer) - 严格只保留 4 个标题且打开新页面 */
.site-footer {
  background-color: var(--black);
  border-top: var(--border-chunky);
  color: var(--white);
  padding: 44px 0 34px 0;
  position: relative;
  z-index: 10;
}

.footer-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 36px;
  list-style: none;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.footer-nav a {
  color: var(--white);
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 900;
  padding: 8px 18px;
  border: 3px solid transparent;
  border-radius: 6px;
  transition: all 0.2s ease;
  display: inline-block;
}

.footer-nav a:hover {
  background-color: var(--yellow);
  color: var(--black);
  border-color: var(--white);
  transform: translateY(-4px) rotate(-2deg);
  box-shadow: 4px 4px 0 var(--magenta);
}

.footer-copy {
  text-align: center;
  font-family: var(--font-mono);
  font-size: 14px;
  color: #888;
  letter-spacing: 0.5px;
}

/* ==========================================================================
   响应式断点适配 (@media)
   ========================================================================== */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  
  .hero-btn-group, .hero-stats-row {
    justify-content: center;
  }

  .stream-card-box {
    grid-template-columns: 1fr;
  }

  .cards-grid-3, .pricing-grid, .steps-grid, .reviews-grid {
    grid-template-columns: 1fr;
    max-width: 540px;
    margin: 0 auto;
  }

  .card-stack-wrapper {
    min-height: 400px;
    margin: 20px auto 0 auto;
  }

  .hero-title {
    font-size: 38px;
  }

  .cta-headline {
    font-size: 34px;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none; /* 移动端隐藏中间导航，保留右侧或品牌区 */
  }

  .hero-title {
    font-size: 32px;
  }

  .badge-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-nav {
    flex-direction: column;
    gap: 16px;
  }
  
  .btn-chunky {
    width: 100%;
    padding: 16px 20px;
  }
}