/* =========================================
   流量卡在线 - 主样式表
   小清新配色：主色 #3ecf8e / #00b386，辅色 #f0faf5 / #e8f8f1
   ========================================= */

/* ---------- CSS 变量 ---------- */
:root {
  --primary: #2dbe8a;
  --primary-dark: #1fa374;
  --primary-light: #e8f8f1;
  --accent: #ff7043;
  --accent-light: #fff3f0;
  --text-dark: #1a2e2a;
  --text-main: #374151;
  --text-muted: #6b7280;
  --text-light: #9ca3af;
  --bg-white: #ffffff;
  --bg-light: #f4faf7;
  --bg-card: #ffffff;
  --border: #d1fae5;
  --border-light: #e5e7eb;
  --shadow-sm: 0 1px 4px rgba(45,190,138,.10);
  --shadow-md: 0 4px 20px rgba(45,190,138,.13);
  --shadow-lg: 0 8px 40px rgba(45,190,138,.18);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition: .22s cubic-bezier(.4,0,.2,1);
  --header-h: 68px;
  --font: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  color: var(--text-main);
  background: var(--bg-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
h1,h2,h3,h4,h5,h6 { color: var(--text-dark); line-height: 1.35; font-weight: 700; }
strong { color: var(--primary-dark); }

/* ---------- Layout ---------- */
.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
}
.section-pad { padding: 72px 0; }
.bg-light { background: var(--bg-light); }
.bg-white { background: var(--bg-white); }
.bg-gradient {
  background: linear-gradient(135deg, #e8f8f1 0%, #d0f0e3 40%, #b8e8d5 100%);
}

/* ---------- 通用按钮 ---------- */
.btn-apply {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  font-weight: 700;
  border-radius: 50px;
  padding: 12px 28px;
  font-size: 15px;
  box-shadow: 0 4px 18px rgba(45,190,138,.35);
  transition: all var(--transition);
  text-align: center;
  line-height: 1.4;
  cursor: pointer;
  border: 2px solid transparent;
}
.btn-apply:hover {
  background: linear-gradient(135deg, var(--primary-dark) 0%, #177a55 100%);
  box-shadow: 0 6px 28px rgba(45,190,138,.50);
  transform: translateY(-2px);
  color: #fff;
}
.btn-apply.btn-lg {
  padding: 16px 36px;
  font-size: 17px;
}
.btn-apply.btn-xl {
  padding: 20px 48px;
  font-size: 19px;
  border-radius: 60px;
  box-shadow: 0 8px 36px rgba(45,190,138,.40);
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary-dark);
  border: 2px solid var(--primary);
  border-radius: 50px;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  transition: all var(--transition);
  background: rgba(255,255,255,.7);
}
.btn-outline:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-2px);
}

/* ---------- 图片占位符 ---------- */
.img-placeholder {
  position: relative;
  background: linear-gradient(135deg, #e8f8f1 0%, #c8edde 100%);
  border: 2px dashed var(--primary);
  overflow: hidden;
}
.placeholder-inner {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-align: center;
}
.placeholder-icon { font-size: 36px; }
.placeholder-text {
  font-size: 13px;
  color: var(--primary-dark);
  font-weight: 600;
  line-height: 1.5;
}
.placeholder-text small { font-weight: 400; color: var(--text-muted); }

/* ---------- Section Header ---------- */
.section-header {
  text-align: center;
  margin-bottom: 52px;
}
.section-header h2 {
  font-size: clamp(22px, 3vw, 32px);
  margin-bottom: 12px;
  color: var(--text-dark);
}
.section-header p {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto;
}

/* =========================================
   HEADER
   ========================================= */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 12px rgba(45,190,138,.08);
  /* 适配刘海屏/微信内置浏览器状态栏安全区域 */
  padding-top: env(safe-area-inset-top, 0px);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: var(--header-h);
}
.logo a {
  display: flex;
  align-items: center;
  gap: 8px;
}
.logo-icon { font-size: 24px; }
.logo-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--primary-dark);
  white-space: nowrap;
}
.nav { flex: 1; }
.nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav ul li a {
  display: block;
  padding: 7px 14px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  transition: all var(--transition);
  white-space: nowrap;
}
.nav ul li a:hover,
.nav ul li a.active {
  color: var(--primary-dark);
  background: var(--primary-light);
}
.header-apply {
  padding: 9px 22px;
  font-size: 14px;
  white-space: nowrap;
  flex-shrink: 0;
}
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
  margin-left: auto;
  flex-shrink: 0;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--primary-dark);
  border-radius: 2px;
  transition: all var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =========================================
   HERO
   ========================================= */
.hero {
  background: linear-gradient(150deg, #ffffff 0%, #f0faf5 40%, #e2f6ed 100%);
  padding: 80px 0 0;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(45,190,138,.12) 0%, transparent 70%);
  pointer-events: none;
}
.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(45,190,138,.12);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 20px;
  border: 1px solid rgba(45,190,138,.25);
}
.hero-text h1 {
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.2;
  margin-bottom: 18px;
  background: linear-gradient(135deg, var(--text-dark) 0%, var(--primary-dark) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 32px;
  line-height: 1.8;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 28px;
}
.hero-tips {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.hero-tips span {
  font-size: 13px;
  color: var(--primary-dark);
  background: rgba(45,190,138,.1);
  padding: 5px 12px;
  border-radius: 50px;
  font-weight: 600;
}
.hero-wave {
  margin-top: 60px;
  line-height: 0;
}
.hero-wave svg { width: 100%; display: block; }

/* =========================================
   NOTICE BAR
   ========================================= */
.notice-bar {
  background: linear-gradient(90deg, #fff8e1, #fff3cd);
  border-top: 2px solid #ffc107;
  border-bottom: 2px solid #ffc107;
  padding: 14px 0;
}
.notice-content {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.notice-label {
  font-size: 13px;
  font-weight: 800;
  color: #b45309;
  white-space: nowrap;
  background: #fff;
  padding: 3px 10px;
  border-radius: 50px;
  border: 1px solid #fbbf24;
}
.notice-text {
  font-size: 14px;
  color: #92400e;
  font-weight: 500;
  line-height: 1.6;
}

/* =========================================
   CTA MAIN
   ========================================= */
.cta-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: 52px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
}
.cta-left h2 {
  font-size: 28px;
  margin-bottom: 14px;
}
.cta-left > p {
  font-size: 16px;
  color: var(--text-muted);
  margin-bottom: 22px;
}
.cta-features {
  margin-bottom: 30px;
}
.cta-features li {
  padding: 8px 0;
  font-size: 15px;
  color: var(--text-main);
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  gap: 8px;
}
.cta-features li:last-child { border-bottom: none; }

/* =========================================
   TRUTH SECTION
   ========================================= */
.truth-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 36px;
}
.truth-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  border: 2px solid transparent;
  transition: all var(--transition);
}
.truth-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.truth-card.truth-false { border-color: #fca5a5; background: #fff8f8; }
.truth-card.truth-true { border-color: #6ee7b7; background: #f0fdf6; }
.truth-icon { font-size: 32px; margin-bottom: 12px; }
.truth-card h3 { font-size: 18px; margin-bottom: 10px; }
.truth-card p { font-size: 14px; color: var(--text-muted); line-height: 1.7; }
.truth-detail { margin-top: 14px; display: flex; gap: 8px; flex-wrap: wrap; }
.tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 700;
}
.tag-false { background: #fee2e2; color: #dc2626; }
.tag-true { background: #d1fae5; color: #059669; }
.truth-cta {
  text-align: center;
  padding: 20px;
  background: var(--primary-light);
  border-radius: var(--radius-md);
  font-size: 16px;
  color: var(--text-main);
}
.link-highlight {
  color: var(--primary-dark);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.link-highlight:hover { color: var(--primary); }

/* =========================================
   OPERATOR SECTION
   ========================================= */
.operator-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.operator-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: all var(--transition);
}
.operator-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.operator-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  color: #fff;
  font-size: 17px;
  font-weight: 800;
  margin-bottom: 12px;
}
.op-mobile { background: linear-gradient(135deg, #0066cc, #004d99); }
.op-unicom { background: linear-gradient(135deg, #cc0000, #990000); }
.op-telecom { background: linear-gradient(135deg, #0099cc, #006699); }
.op-cbn { background: linear-gradient(135deg, #009966, #006644); }
.operator-card h3 {
  font-size: 16px;
  color: var(--text-dark);
  margin-bottom: 14px;
  line-height: 1.4;
}
.operator-truth {
  background: var(--bg-light);
  border-radius: var(--radius-sm);
  padding: 14px;
  margin-bottom: 14px;
}
.operator-truth h4 { font-size: 14px; margin-bottom: 8px; color: var(--primary-dark); }
.operator-truth p { font-size: 13px; color: var(--text-muted); line-height: 1.7; }
.operator-features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.operator-features span {
  font-size: 12px;
  color: var(--primary-dark);
  background: var(--primary-light);
  padding: 4px 10px;
  border-radius: 50px;
  font-weight: 600;
}

/* =========================================
   BIG CTA
   ========================================= */
.big-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
}
.big-cta-text { flex: 1; min-width: 280px; }
.big-cta-text h2 { font-size: clamp(22px, 3vw, 30px); margin-bottom: 8px; color: var(--text-dark); }
.big-cta-text h3 { font-size: clamp(16px, 2vw, 22px); font-weight: 600; color: var(--primary-dark); margin-bottom: 12px; }
.big-cta-text p { font-size: 15px; color: var(--text-muted); }
.big-cta-action { flex-shrink: 0; }

/* =========================================
   KNOWLEDGE SECTION
   ========================================= */
.knowledge-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.knowledge-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: all var(--transition);
}
.knowledge-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--primary); }
.k-icon { font-size: 32px; margin-bottom: 14px; }
.knowledge-card h3 { font-size: 17px; margin-bottom: 10px; }
.knowledge-card p { font-size: 14px; color: var(--text-muted); line-height: 1.75; }

/* =========================================
   SCENE SECTION
   ========================================= */
.scene-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.scene-card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: all var(--transition);
}
.scene-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.scene-content { padding: 20px; }
.scene-content h3 { font-size: 17px; margin-bottom: 8px; }
.scene-content p { font-size: 13px; color: var(--text-muted); margin-bottom: 14px; }
.scene-recommend {
  font-size: 13px;
  color: var(--text-main);
  background: var(--primary-light);
  padding: 10px;
  border-radius: var(--radius-sm);
  line-height: 1.6;
}
.scene-recommend strong { color: var(--primary-dark); }

/* =========================================
   WHY SECTION
   ========================================= */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.why-item {
  text-align: center;
  padding: 36px 24px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  transition: all var(--transition);
}
.why-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--primary); }
.why-icon { font-size: 40px; margin-bottom: 16px; }
.why-item h3 { font-size: 17px; margin-bottom: 10px; }
.why-item p { font-size: 14px; color: var(--text-muted); line-height: 1.75; }

/* =========================================
   FAQ SECTION
   ========================================= */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.faq-item {
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: all var(--transition);
}
.faq-q {
  padding: 18px 24px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-dark);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
  transition: background var(--transition);
}
.faq-q::after {
  content: '+';
  font-size: 22px;
  color: var(--primary);
  line-height: 1;
  transition: transform var(--transition);
  flex-shrink: 0;
  margin-left: 12px;
}
.faq-item.open .faq-q { background: var(--primary-light); color: var(--primary-dark); }
.faq-item.open .faq-q::after { transform: rotate(45deg); }
.faq-a {
  padding: 0 24px;
  max-height: 0;
  overflow: hidden;
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  transition: max-height .35s ease, padding .25s ease;
}
.faq-item.open .faq-a {
  max-height: 300px;
  padding: 14px 24px 20px;
}
.faq-item:hover .faq-q { background: var(--bg-light); }

/* =========================================
   BOTTOM CTA
   ========================================= */
.bottom-cta-inner {
  text-align: center;
}
.bottom-cta-inner h2 { font-size: clamp(22px, 3vw, 34px); margin-bottom: 12px; }
.bottom-cta-inner p { font-size: 16px; color: var(--text-muted); margin-bottom: 32px; }
.bottom-disclaimer {
  margin-top: 16px !important;
  font-size: 13px !important;
  color: var(--text-light) !important;
}

/* =========================================
   FOOTER
   ========================================= */
.footer {
  background: #0f2e22;
  color: rgba(255,255,255,.75);
  padding: 56px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-brand .logo-text { color: #6ee7b7; }
.footer-brand .logo-icon { filter: none; }
.footer-brand p {
  font-size: 13px;
  color: rgba(255,255,255,.55);
  margin-top: 12px;
  line-height: 1.75;
}
.footer-tips {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 14px;
}
.footer-tips span {
  font-size: 12px;
  color: rgba(255,255,255,.6);
  background: rgba(255,255,255,.08);
  padding: 4px 10px;
  border-radius: 50px;
  display: inline-block;
  width: fit-content;
}
.footer-links h4 {
  font-size: 14px;
  color: rgba(255,255,255,.9);
  margin-bottom: 16px;
  font-weight: 700;
}
.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links ul li a,
.footer-links ul li span {
  font-size: 13px;
  color: rgba(255,255,255,.55);
  transition: color var(--transition);
}
.footer-links ul li a:hover { color: #6ee7b7; }
.footer-bottom {
  padding: 20px 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.footer-bottom p { font-size: 12px; color: rgba(255,255,255,.4); line-height: 1.6; }

/* =========================================
   FLOATING APPLY BUTTON
   ========================================= */
.float-apply {
  position: fixed;
  bottom: 28px;
  right: 24px;
  z-index: 999;
  transform: translateY(120px);
  transition: transform .4s cubic-bezier(.34,1.56,.64,1);
}
.float-apply.show { transform: translateY(0); }
.float-apply a {
  display: flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  padding: 14px 22px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 700;
  box-shadow: 0 6px 28px rgba(45,190,138,.5);
  transition: all var(--transition);
}
.float-apply a:hover {
  box-shadow: 0 8px 36px rgba(45,190,138,.65);
  transform: scale(1.04);
}
.float-icon { font-size: 18px; }
.float-text { white-space: nowrap; }

/* =========================================
   BACK TO TOP
   ========================================= */
.back-top {
  position: fixed;
  bottom: 28px;
  left: 24px;
  z-index: 999;
  width: 44px;
  height: 44px;
  background: rgba(45,190,138,.15);
  border: 2px solid var(--primary);
  border-radius: 50%;
  color: var(--primary-dark);
  font-size: 18px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  opacity: 0;
  transform: scale(.7);
  pointer-events: none;
}
.back-top.show {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
}
.back-top:hover {
  background: var(--primary);
  color: #fff;
  transform: scale(1.1);
}

/* =========================================
   CARDS PAGE
   ========================================= */
.page-hero {
  background: linear-gradient(150deg, #f0faf5 0%, #e2f6ed 100%);
  padding: 52px 0 48px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}
.page-hero h1 { font-size: clamp(24px, 3.5vw, 38px); margin-bottom: 12px; }
.page-hero p { font-size: 16px; color: var(--text-muted); max-width: 620px; margin: 0 auto 24px; }

.filter-bar {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.filter-btn {
  padding: 9px 20px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  border: 2px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
}
.filter-btn:hover,
.filter-btn.active {
  border-color: var(--primary);
  color: var(--primary-dark);
  background: var(--primary-light);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}
.card-item {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  overflow: hidden;
  transition: all var(--transition);
  position: relative;
}
.card-item:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.card-item-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 50px;
  z-index: 2;
}
.card-item-img {
  width: 100%;
  padding-top: 56.25%;
  position: relative;
}
.card-item-body {
  padding: 20px;
}
.card-item-op {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  color: var(--primary-dark);
  background: var(--primary-light);
  padding: 4px 10px;
  border-radius: 50px;
  margin-bottom: 10px;
}
.card-item-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 10px;
}
.card-item-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 14px;
}
.price-num {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary-dark);
  line-height: 1;
}
.price-unit { font-size: 14px; color: var(--text-muted); }
.price-note { font-size: 12px; color: var(--accent); font-weight: 600; }
.card-item-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}
.card-item-tags span {
  font-size: 12px;
  color: var(--text-muted);
  background: var(--bg-light);
  padding: 3px 8px;
  border-radius: 4px;
}
.card-item-apply {
  display: block;
  width: 100%;
  text-align: center;
  padding: 12px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 700;
  transition: all var(--transition);
  box-shadow: 0 3px 12px rgba(45,190,138,.3);
}
.card-item-apply:hover {
  box-shadow: 0 6px 22px rgba(45,190,138,.48);
  transform: translateY(-1px);
  color: #fff;
}

/* =========================================
   TRUTH PAGE
   ========================================= */
.truth-article {
  max-width: 820px;
  margin: 0 auto;
}
.truth-article h2 { font-size: 24px; margin: 36px 0 14px; color: var(--text-dark); }
.truth-article p { font-size: 15px; color: var(--text-muted); line-height: 1.85; margin-bottom: 16px; }
.truth-article ul { margin: 0 0 16px 0; }
.truth-article ul li {
  font-size: 15px;
  color: var(--text-muted);
  padding: 6px 0 6px 20px;
  position: relative;
  line-height: 1.7;
}
.truth-article ul li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--primary);
}
.truth-box {
  background: var(--primary-light);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 18px 24px;
  margin: 20px 0;
}
.truth-box.danger {
  background: #fff8f8;
  border-left-color: #ef4444;
}
.truth-box p { color: var(--text-main); margin-bottom: 0; font-weight: 500; }

/* =========================================
   GUIDE PAGE
   ========================================= */
.guide-steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.guide-step {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 30px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
  display: flex;
  gap: 20px;
  align-items: flex-start;
  transition: all var(--transition);
}
.guide-step:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.step-num {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.step-content h3 { font-size: 17px; margin-bottom: 8px; }
.step-content p { font-size: 14px; color: var(--text-muted); line-height: 1.75; }

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.comparison-table th {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  padding: 14px 18px;
  font-size: 14px;
  text-align: center;
}
.comparison-table td {
  padding: 13px 18px;
  font-size: 14px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-light);
  text-align: center;
}
.comparison-table tr:last-child td { border-bottom: none; }
.comparison-table tr:nth-child(even) td { background: var(--bg-light); }
.comparison-table .highlight-col { color: var(--primary-dark); font-weight: 700; }

/* =========================================
   BREADCRUMB
   ========================================= */
.breadcrumb {
  padding: 14px 0;
  font-size: 13px;
  color: var(--text-muted);
}
.breadcrumb a { color: var(--primary-dark); }
.breadcrumb span { margin: 0 6px; color: var(--text-light); }

/* =========================================
   INLINE CTA BANNER
   ========================================= */
.inline-cta {
  background: linear-gradient(135deg, var(--primary-light) 0%, #c8edde 100%);
  border: 2px solid var(--primary);
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  text-align: center;
  margin: 48px 0;
}
.inline-cta h3 { font-size: 22px; margin-bottom: 10px; }
.inline-cta p { font-size: 15px; color: var(--text-muted); margin-bottom: 22px; }

/* =========================================
   RESPONSIVE - TABLET (≤1024px)
   ========================================= */
@media (max-width: 1024px) {
  .hero-content { grid-template-columns: 1fr; gap: 40px; }
  .hero-image { display: none; }
  .hero { padding: 64px 0 0; }
  .cta-card { grid-template-columns: 1fr; gap: 32px; }
  .cta-right { display: none; }
  .cta-card { padding: 36px; }
  .operator-grid { grid-template-columns: 1fr 1fr; }
  .knowledge-grid { grid-template-columns: 1fr 1fr; }
  .scene-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  .cards-grid { grid-template-columns: 1fr 1fr; }
  .guide-steps { grid-template-columns: 1fr; }
}

/* =========================================
   RESPONSIVE - MOBILE (≤768px)
   ========================================= */
@media (max-width: 768px) {
  :root { --header-h: 58px; }
  .section-pad { padding: 48px 0; }
  .container { padding: 0 16px; }

  /* Header */
  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(255,255,255,.98);
    border-bottom: 1px solid var(--border);
    padding: 16px;
    transform: translateY(-110%);
    transition: transform .3s ease;
    z-index: 999;
    box-shadow: 0 8px 24px rgba(0,0,0,.08);
    display: none;
  }
  .nav.open {
    display: block;
    transform: translateY(0);
  }
  .nav ul { flex-direction: column; gap: 4px; }
  .nav ul li a { padding: 12px 18px; font-size: 15px; border-radius: var(--radius-sm); }
  .header-apply { display: none; }
  .hamburger { display: flex; }

  /* Hero */
  .hero { padding: 40px 0 0; }
  .hero-content { gap: 24px; }
  .hero-text h1 { font-size: 26px; }
  .hero-subtitle { font-size: 14px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn-apply { width: 100%; }
  .hero-actions .btn-outline { width: 100%; justify-content: center; }

  /* Truth */
  .truth-grid { grid-template-columns: 1fr; }

  /* Operator */
  .operator-grid { grid-template-columns: 1fr; }

  /* Big CTA */
  .big-cta { flex-direction: column; text-align: center; gap: 24px; }
  .btn-apply.btn-xl { width: 100%; font-size: 16px; padding: 16px 24px; }

  /* Knowledge */
  .knowledge-grid { grid-template-columns: 1fr; }

  /* Scene */
  .scene-grid { grid-template-columns: 1fr; }

  /* Why */
  .why-grid { grid-template-columns: 1fr; }

  /* CTA card */
  .cta-card { padding: 24px 20px; }

  /* Section header */
  .section-header { margin-bottom: 32px; }

  /* FAQ */
  .faq-q { font-size: 14px; padding: 14px 18px; }
  .faq-a { padding: 0 18px; }
  .faq-item.open .faq-a { padding: 12px 18px 16px; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }

  /* Float apply */
  .float-apply { bottom: 16px; right: 16px; }
  .float-apply a { padding: 12px 18px; font-size: 14px; }
  .float-text { display: none; }
  .float-icon { font-size: 22px; }

  /* Back top */
  .back-top { left: 16px; bottom: 16px; width: 38px; height: 38px; font-size: 15px; }

  /* Cards */
  .cards-grid { grid-template-columns: 1fr; }

  /* Truth article */
  .truth-article h2 { font-size: 20px; }
  .inline-cta { padding: 24px 20px; }
  .inline-cta h3 { font-size: 18px; }

  /* Comparison table */
  .comparison-table { display: block; overflow-x: auto; }

  /* Page hero */
  .page-hero { padding: 36px 0 32px; }

  /* Notice bar */
  .notice-content { flex-direction: column; gap: 8px; }
}

/* =========================================
   RESPONSIVE - SMALL (≤480px)
   ========================================= */
@media (max-width: 480px) {
  .logo-text { font-size: 17px; }
  .hero-tips { gap: 8px; }
  .hero-tips span { font-size: 12px; padding: 4px 10px; }
  .btn-apply.btn-lg { font-size: 15px; padding: 14px 24px; }
  .section-header h2 { font-size: 20px; }
  .float-apply a { width: 52px; height: 52px; border-radius: 50%; padding: 0; justify-content: center; }
}

/* =========================================
   ANIMATIONS
   ========================================= */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-in-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .5s ease, transform .5s ease;
}
.fade-in-up.visible { opacity: 1; transform: translateY(0); }

/* =========================================
   SCROLLBAR
   ========================================= */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-light); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-dark); }

/* =========================================
   SELECTION
   ========================================= */
::selection { background: rgba(45,190,138,.25); color: var(--text-dark); }