/* ========================================
   燕郊宽带网站 - 主样式表 (完善版)
   ======================================== */

/* CSS 变量 */
:root {
  --primary: #1a73e8;
  --primary-dark: #1557b0;
  --primary-light: #e8f0fe;
  --accent: #ff6b35;
  --accent-dark: #e55a2b;
  --yidong: #00a0e9;
  --liantong: #ff6600;
  --dianxin: #00a0e9;
  --fttr: #7c3aed;
  --text: #1f2937;
  --text-light: #6b7280;
  --text-lighter: #9ca3af;
  --bg: #f3f4f6;
  --white: #ffffff;
  --border: #e5e7eb;
  --shadow: 0 2px 12px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.1);
  --shadow-hover: 0 12px 40px rgba(0,0,0,0.15);
  --radius: 10px;
  --radius-lg: 18px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  color: var(--text);
  line-height: 1.7;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.text-center { text-align: center; }

/* ========================================
   Header
   ======================================== */
.header {
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 6px rgba(0,0,0,0.06);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: var(--transition);
}
.header .container {
  display: flex;
  align-items: center;
  padding: 10px 20px;
  height: 64px;
  gap: 16px;
}
.logo { flex-shrink: 0; }
.logo { flex-shrink: 0; }
.logo-link {
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-text {
  font-size: 26px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.5px;
  white-space: nowrap;
}
.logo-accent { color: var(--accent); }
.logo-badge {
  font-size: 12px;
  font-weight: 500;
  color: #fff;
  background: linear-gradient(135deg, #e17055, #d63031);
  padding: 4px 10px;
  border-radius: 4px;
  white-space: nowrap;
}
.logo-link:hover .logo-text { color: var(--primary-dark); }
.logo-link:hover { text-decoration: none; }

/* 主导航栏 */
.main-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-left: 40px;
  flex-wrap: nowrap;
}
.main-nav .nav-item {
  padding: 8px 10px;
  border-radius: var(--radius);
  color: var(--text);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
  white-space: nowrap;
}
.main-nav .nav-item:hover,
.main-nav .nav-item.active {
  background: var(--primary-light);
  color: var(--primary);
  text-decoration: none;
}
.main-nav .nav-item.active::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
}
.main-nav .nav-cta {
  background: linear-gradient(135deg, var(--accent), #f7931e) !important;
  color: white !important;
  font-weight: 700 !important;
  padding: 8px 20px !important;
  box-shadow: 0 2px 8px rgba(255,107,53,0.3);
}
.main-nav .nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(255,107,53,0.4);
}

/* 头部右侧 */
.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-left: auto;
  flex-shrink: 0;
}

/* 汉堡菜单（左侧） */
.hamburger { 
  display: none; 
  cursor: pointer; 
  flex-direction: column; 
  justify-content: center;
  gap: 5px; 
  padding: 10px; 
  background: var(--bg);
  border-radius: 8px;
  transition: var(--transition);
  flex-shrink: 0;
}
.header-phone {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--accent);
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
}
.header-phone:hover { color: var(--accent-dark); }

/* Nav */
.nav { display: flex; align-items: center; gap: 2px; flex-wrap: nowrap; }
.nav a {
  padding: 8px 10px;
  border-radius: var(--radius);
  color: var(--text);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
  white-space: nowrap;
}
.nav a:hover,
.nav a.active {
  background: var(--primary-light);
  color: var(--primary);
  text-decoration: none;
}
.nav a.active::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  background: var(--primary);
  border-radius: 2px;
}
.btn-yuyue {
  background: linear-gradient(135deg, var(--accent), #f7931e) !important;
  color: white !important;
  font-weight: 700 !important;
  padding: 8px 20px !important;
  box-shadow: 0 2px 8px rgba(255,107,53,0.3);
}
.btn-yuyue:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(255,107,53,0.4);
  text-decoration: none !important;
}
.hamburger { 
  display: none; 
  cursor: pointer; 
  flex-direction: column; 
  justify-content: center;
  gap: 5px; 
  padding: 10px; 
  background: var(--bg);
  border-radius: 8px;
  transition: var(--transition);
}
.hamburger:hover { background: var(--primary-light); }
.hamburger span { width: 22px; height: 2.5px; background: var(--primary); border-radius: 2px; transition: var(--transition); }
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5.5px, 5.5px); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5.5px, -5.5px); }

/* ========================================
   Top Bar
   ======================================== */
.top-bar {
  background: linear-gradient(135deg, var(--primary), #0d47a1);
  color: white;
  padding: 8px 0;
  font-size: 14px;
}
.top-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}
.phone-link { color: #ffd700; font-weight: 700; font-size: 16px; text-decoration: none; }
.phone-link:hover { color: #fff; text-decoration: underline; }

/* ========================================
   Hero
   ======================================== */
.hero {
  background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 60%, #092e6b 100%);
  color: white;
  padding: 100px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: rgba(255,255,255,0.05);
  border-radius: 50%;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: rgba(255,255,255,0.03);
  border-radius: 50%;
}
.hero .container { position: relative; z-index: 1; }
.hero h1 { font-size: 42px; margin-bottom: 16px; letter-spacing: 1px; font-weight: 800; }
.hero-subtitle { font-size: 19px; opacity: 0.92; margin-bottom: 36px; font-weight: 400; }
.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: white;
  padding: 8px 20px;
  border-radius: 25px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 24px;
  border: 1px solid rgba(255,255,255,0.2);
}
.hero-phone { margin-top: 32px; display: flex; align-items: center; justify-content: center; gap: 20px; flex-wrap: wrap; }
.hero-phone-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 12px 24px;
  border-radius: 30px;
  border: 1px solid rgba(255,255,255,0.15);
}
.hero-phone-inner i { font-size: 20px; color: #ffd700; }
.phone-big { font-size: 44px; font-weight: 900; color: #ffd700; text-shadow: 0 2px 8px rgba(0,0,0,0.2); }
.hero-address { margin-top: 18px; opacity: 0.75; font-size: 15px; }
.hero-address i { margin-right: 6px; }

/* ========================================
   Buttons
   ======================================== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent), #f7931e);
  color: white !important;
  padding: 14px 36px;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  transition: var(--transition);
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(255,107,53,0.35);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(255,107,53,0.45);
  text-decoration: none !important;
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--primary);
  color: var(--primary) !important;
  padding: 12px 32px;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  background: transparent;
}
.btn-outline:hover {
  background: var(--primary);
  color: white !important;
  text-decoration: none !important;
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(26,115,232,0.25);
}
.btn-lg { padding: 16px 44px; font-size: 18px; }
.btn-sm {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--primary);
  color: white !important;
  padding: 6px 18px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
}
.btn-sm:hover { background: var(--primary-dark); text-decoration: none !important; transform: translateY(-1px); }
.text-link { color: var(--primary); font-size: 16px; font-weight: 600; }
.text-link:hover { text-decoration: underline; }

/* ========================================
   Section Title
   ======================================== */
.section-title {
  text-align: center;
  font-size: 30px;
  font-weight: 800;
  margin: 60px 0 36px;
  color: var(--text);
  position: relative;
}
.section-title::after {
  content: '';
  display: block;
  width: 48px;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), #f7931e);
  border-radius: 2px;
  margin: 14px auto 0;
}
.section-desc {
  text-align: center;
  color: var(--text-light);
  margin-bottom: 36px;
  font-size: 16px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ========================================
   Operators Grid
   ======================================== */
.operators { padding: 70px 0; background: var(--bg); }
.op-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  max-width: 960px;
  margin: 0 auto;
}
.op-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px 28px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  text-decoration: none !important;
  color: var(--text) !important;
  border: 2px solid transparent;
  position: relative;
  overflow: hidden;
}
.op-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}
.op-card:hover::before { transform: scaleX(1); }
.op-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
  text-decoration: none !important;
}
.op-card.op-yidong::before { background: var(--yidong); }
.op-card.op-liantong::before { background: var(--liantong); }
.op-card.op-dianxin::before { background: var(--dianxin); }
.op-card.op-yidong:hover { border-color: var(--yidong); }
.op-card.op-liantong:hover { border-color: var(--liantong); }
.op-card.op-dianxin:hover { border-color: var(--dianxin); }
.op-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  background: linear-gradient(135deg, #27ae60, #229954);
  color: white;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
}
.op-icon { font-size: 52px; margin-bottom: 16px; display: block; color: var(--primary); }
.op-icon i { font-size: 48px; }
.op-card h3 { font-size: 20px; margin-bottom: 10px; font-weight: 700; }
.op-card p { color: var(--text-light); font-size: 14px; line-height: 1.9; }
.op-link { display: block; margin-top: 18px; color: var(--primary); font-weight: 700; font-size: 15px; }
.op-link i { margin-left: 4px; transition: transform 0.2s; }
.op-card:hover .op-link i { transform: translateX(4px); }

/* ========================================
   Why Us
   ======================================== */
.why-us { padding: 70px 0; }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.feature-item {
  text-align: center;
  padding: 36px 24px;
  border-radius: var(--radius-lg);
  background: var(--bg);
  transition: var(--transition);
  border: 1px solid transparent;
}
.feature-item:hover {
  background: var(--white);
  border-color: var(--primary-light);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}
.feature-icon { font-size: 44px; margin-bottom: 14px; display: block; }
.feature-item h4 { font-size: 17px; margin-bottom: 8px; font-weight: 700; }
.feature-item p { color: var(--text-light); font-size: 14px; line-height: 1.7; }

/* ========================================
   Packages Preview
   ======================================== */
.packages-preview { padding: 70px 0; background: var(--bg); }
.pkg-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  max-width: 960px;
  margin: 0 auto;
}
.pkg-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  box-shadow: var(--shadow);
  position: relative;
  border: 2px solid transparent;
  transition: var(--transition);
}
.pkg-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.pkg-card.pkg-hot { border-color: var(--accent); }
.pkg-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent), #f7931e);
  color: white;
  padding: 4px 22px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(255,107,53,0.3);
}
.pkg-card h4 { font-size: 19px; margin-bottom: 18px; color: var(--text); font-weight: 700; }
.pkg-price { margin-bottom: 22px; }
.price-num { font-size: 44px; font-weight: 900; color: var(--accent); letter-spacing: -1px; }
.price-unit { font-size: 16px; color: var(--text-light); }
.pkg-features {
  text-align: left;
  margin-bottom: 26px;
}
.pkg-features li {
  padding: 8px 0;
  font-size: 14px;
  color: var(--text-light);
  border-bottom: 1px solid #f3f4f6;
  display: flex;
  align-items: center;
  gap: 6px;
}
.pkg-features li:last-child { border-bottom: none; }
.btn-package {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--primary);
  color: white !important;
  padding: 12px 40px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition: var(--transition);
  width: 100%;
  border: none;
  cursor: pointer;
}
.btn-package:hover {
  background: var(--primary-dark);
  text-decoration: none !important;
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(26,115,232,0.3);
}

/* ========================================
   Community Section
   ======================================== */
.community-section { padding: 70px 0; }
.community-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  max-width: 960px;
  margin: 0 auto;
}
.comm-tag {
  background: var(--white);
  padding: 9px 20px;
  border-radius: 20px;
  font-size: 14px;
  color: var(--text);
  border: 1px solid var(--border);
  transition: var(--transition);
  cursor: default;
  font-weight: 500;
}
.comm-tag:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 2px 8px rgba(26,115,232,0.15);
}

/* ========================================
   CTA
   ======================================== */
.cta-section { padding: 70px 0; }
.cta-box {
  background: linear-gradient(135deg, #1a73e8, #0d47a1);
  color: white;
  border-radius: var(--radius-lg);
  padding: 60px 50px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: rgba(255,255,255,0.04);
  border-radius: 50%;
}
.cta-box h2 { font-size: 30px; margin-bottom: 16px; font-weight: 800; position: relative; }
.cta-box p { font-size: 17px; opacity: 0.9; margin-bottom: 32px; position: relative; }
.cta-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; position: relative; }
.cta-buttons .btn-primary {
  background: linear-gradient(135deg, #ff6b35, #f7931e) !important;
  border: none !important;
}
.cta-buttons .btn-outline { border-color: white; color: white !important; }
.cta-buttons .btn-outline:hover { background: white; color: var(--primary) !important; }

/* ========================================
   Breadcrumb
   ======================================== */
.breadcrumb {
  background: var(--bg);
  padding: 14px 0;
  font-size: 14px;
  color: var(--text-light);
}
.breadcrumb .container { display: flex; align-items: center; gap: 8px; }
.breadcrumb a { color: var(--primary); }
.breadcrumb .sep { color: var(--text-lighter); }

/* ========================================
   Page Hero
   ======================================== */
.page-hero {
  padding: 64px 0 52px;
  text-align: center;
  color: white;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.08);
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { font-size: 34px; margin-bottom: 12px; font-weight: 800; }
.page-hero p { font-size: 17px; opacity: 0.9; }
.page-hero-phone { margin-top: 14px; font-size: 16px; }
.page-hero-phone a { color: #ffd700; font-weight: 700; font-size: 22px; text-decoration: none; }

.page-hero-yidong { background: linear-gradient(135deg, #00a0e9, #0077b3); }
.page-hero-liantong { background: linear-gradient(135deg, #ff6600, #cc5200); }
.page-hero-dianxin { background: linear-gradient(135deg, #00a0e9, #006994); }
.page-hero-fttr { background: linear-gradient(135deg, #7c3aed, #5b21b6); }
.page-hero-huodong { background: linear-gradient(135deg, #e53935, #b71c1c); }
.page-hero-xinqu { background: linear-gradient(135deg, #43a047, #2e7d32); }
.page-hero-news { background: linear-gradient(135deg, #546e7a, #37474f); }
.page-hero-wenti { background: linear-gradient(135deg, #1e88e5, #1565c0); }
.page-hero-yuyue { background: linear-gradient(135deg, #fb8c00, #ef6c00); }
.page-hero-about { background: linear-gradient(135deg, #3949ab, #283593); }
.page-hero-contact { background: linear-gradient(135deg, #00897b, #00695c); }

/* ========================================
   Package Table
   ======================================== */
.package-section { padding: 60px 0; }
.pkg-table-wrap { overflow-x: auto; margin: 24px 0; border-radius: var(--radius); box-shadow: var(--shadow); }
.pkg-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  overflow: hidden;
}
.pkg-table th {
  background: var(--primary);
  color: white;
  padding: 16px 18px;
  text-align: left;
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
}
.pkg-table td {
  padding: 16px 18px;
  border-bottom: 1px solid #f0f0f0;
  font-size: 14px;
  vertical-align: middle;
}
.pkg-table tr:hover { background: #fafbff; }
.pkg-table tr.hot-row { background: #fff8f0; }
.hot-row .price-cell { color: var(--accent); }
.price-cell { font-size: 18px; font-weight: 800; }
.package-note {
  background: #fffbe6;
  border-left: 4px solid #ffc107;
  padding: 18px 22px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin-top: 24px;
  font-size: 14px;
  line-height: 1.8;
}

/* ========================================
   Process Steps
   ======================================== */
.process-section { padding: 60px 0; background: var(--bg); }
.process-steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.step {
  text-align: center;
  flex: 0 0 150px;
  max-width: 150px;
  transition: var(--transition);
}
.step:hover { transform: translateY(-4px); }
.step-num {
  width: 52px;
  height: 52px;
  background: var(--primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 800;
  margin: 0 auto 14px;
  box-shadow: 0 4px 12px rgba(26,115,232,0.3);
  transition: var(--transition);
}
.step:hover .step-num { transform: scale(1.1); }
.step h4 { font-size: 15px; margin-bottom: 6px; font-weight: 700; }
.step p { font-size: 13px; color: var(--text-light); }
.step-arrow { font-size: 28px; color: var(--primary); font-weight: 700; }

/* ========================================
   Advantage
   ======================================== */
.advantage-section { padding: 60px 0; }
.advantage-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 860px;
  margin: 0 auto;
}
.adv-item {
  background: var(--bg);
  padding: 28px;
  border-radius: var(--radius);
  border-left: 4px solid var(--primary);
  transition: var(--transition);
}
.adv-item:hover { background: var(--white); box-shadow: var(--shadow); transform: translateX(4px); }
.adv-item h4 { font-size: 17px; margin-bottom: 8px; font-weight: 700; }
.adv-item p { color: var(--text-light); font-size: 14px; line-height: 1.7; }

/* ========================================
   FTTR
   ======================================== */
.fttr-intro { padding: 60px 0; }
.fttr-content {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 48px;
  align-items: start;
}
.fttr-text h2 { font-size: 26px; margin: 24px 0 14px; font-weight: 700; color: var(--text); }
.fttr-text h3 { font-size: 20px; font-weight: 700; color: var(--text); }
.fttr-text p { color: var(--text-light); margin-bottom: 12px; line-height: 1.9; }
.fttr-benefits { list-style: none; margin-top: 16px; }
.fttr-benefits li { padding: 10px 0; font-size: 15px; border-bottom: 1px solid #f5f5f5; display: flex; align-items: center; gap: 8px; }

.fttr-diagram {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
  box-shadow: var(--shadow);
}
.diagram-title { font-weight: 700; margin-bottom: 20px; font-size: 16px; }
.d-node {
  background: var(--primary);
  color: white;
  padding: 14px 24px;
  border-radius: var(--radius);
  margin: 10px auto;
  font-size: 14px;
  font-weight: 600;
  max-width: 220px;
  box-shadow: 0 2px 8px rgba(26,115,232,0.2);
}
.d-main { background: linear-gradient(135deg, var(--accent), #f7931e); box-shadow: 0 2px 8px rgba(255,107,53,0.3); }
.d-lines { padding: 12px; color: var(--text-light); font-size: 13px; }
.d-nodes-sub { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.d-sub { font-size: 13px; padding: 12px; background: var(--white); border-radius: var(--radius); box-shadow: 0 1px 4px rgba(0,0,0,0.06); }
.d-note { margin-top: 20px; font-size: 13px; color: var(--text-light); }

.fttr-scenes { padding: 60px 0; background: var(--bg); }
.scene-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.scene-card {
  background: var(--white);
  padding: 28px 20px;
  border-radius: var(--radius);
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid transparent;
}
.scene-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); border-color: var(--primary-light); }
.scene-icon { font-size: 44px; margin-bottom: 12px; display: block; }
.scene-card h4 { font-size: 16px; margin-bottom: 8px; font-weight: 700; }
.scene-card p { font-size: 13px; color: var(--text-light); line-height: 1.7; }

.compare-section { padding: 60px 0; }
.compare-table-wrap { overflow-x: auto; border-radius: var(--radius); box-shadow: var(--shadow); }
.compare-table-wrap table { width: 100%; border-collapse: collapse; background: var(--white); }
.compare-table-wrap th {
  background: var(--primary);
  color: white;
  padding: 14px 16px;
  text-align: left;
  font-size: 14px;
}
.compare-table-wrap td { padding: 12px 16px; border-bottom: 1px solid #f0f0f0; font-size: 14px; }
.highlight-col { background: #e8f5e9 !important; font-weight: 700; }

/* ========================================
   Activity / Huodong
   ======================================== */
.huodong-list { padding: 60px 0; }
.hd-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px;
  margin-bottom: 28px;
  box-shadow: var(--shadow);
  position: relative;
  border-left: 4px solid var(--border);
  transition: var(--transition);
}
.hd-card:hover { box-shadow: var(--shadow-lg); transform: translateX(4px); }
.hd-card.hd-hot { border-left-color: var(--accent); }
.hd-badge {
  position: absolute;
  top: -11px;
  right: 28px;
  background: var(--accent);
  color: white;
  padding: 4px 18px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(255,107,53,0.3);
}
.hd-content h2 { font-size: 21px; margin-bottom: 8px; color: var(--text); font-weight: 700; }
.hd-time { color: var(--text-lighter); font-size: 13px; margin-bottom: 14px; }
.hd-content ul { margin: 14px 0 18px 20px; }
.hd-content ul li { margin-bottom: 6px; color: var(--text-light); font-size: 15px; line-height: 1.7; list-style: disc; }
.hd-content p { color: var(--text-light); line-height: 1.8; }

/* ========================================
   Community / Xinqu
   ======================================== */
.xinqu-section { padding: 60px 0; }
.search-box { max-width: 560px; margin: 0 auto 36px; }
.search-box input {
  width: 100%;
  padding: 16px 24px;
  border: 2px solid var(--border);
  border-radius: 50px;
  font-size: 16px;
  outline: none;
  transition: var(--transition);
  background: var(--white);
}
.search-box input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,115,232,0.1); }
.area-section { margin-bottom: 36px; }
.area-title { font-size: 19px; margin-bottom: 16px; color: var(--text); font-weight: 700; padding-bottom: 8px; border-bottom: 2px solid var(--primary); display: inline-block; }
.xinqu-note { margin-top: 48px; }
.note-box {
  background: var(--primary-light);
  border-radius: var(--radius-lg);
  padding: 36px;
}
.note-box h4 { font-size: 19px; margin-bottom: 14px; font-weight: 700; }
.note-box ol { margin: 14px 0 20px 20px; }
.note-box li { margin-bottom: 8px; color: var(--text-light); line-height: 1.7; }

/* ========================================
   News
   ======================================== */
.news-section { padding: 60px 0; }
.news-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--primary);
  transition: var(--transition);
}
.news-card:hover { transform: translateX(6px); box-shadow: var(--shadow-lg); }
.news-date { color: var(--text-lighter); font-size: 13px; margin-bottom: 8px; }
.news-card h4 { font-size: 19px; margin-bottom: 10px; font-weight: 700; }
.news-card h4 a { color: var(--text); text-decoration: none; }
.news-card h4 a:hover { color: var(--primary); }
.news-card p { color: var(--text-light); font-size: 15px; line-height: 1.8; }
.news-tag {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  padding: 4px 14px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  margin-top: 14px;
}

/* ========================================
   FAQ / Wenti
   ======================================== */
.faq-section { padding: 60px 0; }
.faq-category { font-size: 23px; margin: 36px 0 18px; padding-bottom: 10px; border-bottom: 2px solid var(--primary); font-weight: 700; color: var(--text); }
.faq-item {
  background: var(--white);
  border-radius: var(--radius);
  margin-bottom: 14px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.05);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow); }
.faq-item summary {
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  transition: background 0.2s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::before {
  content: "▶";
  margin-right: 14px;
  font-size: 11px;
  color: var(--primary);
  transition: transform 0.2s;
  flex-shrink: 0;
}
.faq-item[open] summary::before { transform: rotate(90deg); }
.faq-item summary:hover { background: var(--bg); }
.faq-answer {
  padding: 0 24px 24px 52px;
  color: var(--text-light);
  font-size: 15px;
  line-height: 1.9;
}
.faq-answer ol, .faq-answer ul { margin: 10px 0 10px 20px; }
.faq-answer li { margin-bottom: 6px; }
.mini-table {
  width: auto;
  border-collapse: collapse;
  margin: 14px 0;
  font-size: 14px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  border-radius: var(--radius);
  overflow: hidden;
}
.mini-table th, .mini-table td {
  padding: 10px 18px;
  border: 1px solid var(--border);
}
.mini-table th { background: var(--bg); font-weight: 600; }
.faq-more {
  background: var(--primary-light);
  border-radius: var(--radius-lg);
  padding: 36px;
  text-align: center;
  margin-top: 36px;
}
.faq-more h3 { margin-bottom: 10px; font-weight: 700; }
.faq-more p { color: var(--text-light); }

/* ========================================
   Yuyue / Appointment
   ======================================== */
.yuyue-section { padding: 60px 0; }
.yuyue-wrap {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 36px;
  align-items: start;
}
.yuyue-form-wrap {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 42px;
  box-shadow: var(--shadow);
}
.yuyue-form-wrap h2 { font-size: 24px; margin-bottom: 28px; font-weight: 700; }
.form-group { margin-bottom: 22px; }
.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  font-size: 15px;
  color: var(--text);
}
.required { color: #e53935; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 13px 18px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-size: 15px;
  outline: none;
  transition: var(--transition);
  font-family: inherit;
  background: var(--white);
  color: var(--text);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,115,232,0.1);
}
.form-group textarea { resize: vertical; min-height: 100px; }
.btn-submit {
  width: 100%;
  padding: 16px;
  background: linear-gradient(135deg, var(--accent), #f7931e);
  color: white;
  border: none;
  border-radius: 50px;
  font-size: 18px;
  font-weight: 800;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 14px rgba(255,107,53,0.3);
}
.btn-submit:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(255,107,53,0.4); }
.form-note { margin-top: 24px; font-size: 13px; color: var(--text-lighter); line-height: 1.8; }
.form-note p { margin-bottom: 4px; }

.yuyue-sidebar { }
.sidebar-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
  transition: var(--transition);
}
.sidebar-card:hover { box-shadow: var(--shadow-lg); }
.sidebar-card h3 { font-size: 18px; margin-bottom: 14px; font-weight: 700; }
.sidebar-card h4 { font-size: 15px; margin: 18px 0 10px; font-weight: 700; color: var(--text); }
.sidebar-phone { margin: 18px 0; }
.phone-big-inline {
  font-size: 28px;
  font-weight: 900;
  color: var(--accent);
  text-decoration: none !important;
}
.sidebar-card p { font-size: 14px; color: var(--text-light); margin-bottom: 8px; line-height: 1.7; }
.sidebar-card hr { border: none; border-top: 1px solid var(--border); margin: 18px 0; }
.sidebar-card ul { }
.sidebar-card li { padding: 6px 0; font-size: 14px; color: var(--text-light); display: flex; align-items: center; gap: 6px; }
.sidebar-highlight { border-left: 4px solid var(--accent); }

/* ========================================
   Success Page
   ======================================== */
.success-section { padding: 100px 0; }
.success-box {
  text-align: center;
  max-width: 520px;
  margin: 0 auto;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 60px 48px;
  box-shadow: var(--shadow-lg);
}
.success-icon { font-size: 72px; margin-bottom: 20px; }
.success-box h1 { font-size: 30px; color: #43a047; margin-bottom: 18px; font-weight: 800; }
.success-box p { font-size: 16px; color: var(--text-light); margin-bottom: 10px; line-height: 1.7; }
.success-info {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 24px;
  margin: 28px 0;
  font-size: 15px;
  text-align: left;
}
.success-info p { margin-bottom: 8px; }
.success-info strong { color: var(--text); }
.success-actions { display: flex; justify-content: center; gap: 14px; margin-top: 28px; flex-wrap: wrap; }

/* ========================================
   About
   ======================================== */
.about-section { padding: 60px 0; }
.about-intro {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: center;
  margin-bottom: 60px;
}
.about-text h2 { font-size: 26px; margin-bottom: 18px; font-weight: 700; color: var(--text); }
.about-text p { color: var(--text-light); line-height: 1.9; margin-bottom: 14px; font-size: 15px; }
.about-badge {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.badge-item {
  background: linear-gradient(135deg, var(--primary), #0d47a1);
  color: white;
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  box-shadow: 0 4px 12px rgba(26,115,232,0.2);
}
.badge-num { font-size: 32px; font-weight: 900; }
.badge-label { font-size: 13px; opacity: 0.85; margin-top: 4px; }

.promise-list { max-width: 740px; margin: 0 auto; }
.promise-item {
  display: flex;
  gap: 18px;
  align-items: start;
  padding: 22px 24px;
  margin-bottom: 14px;
  background: var(--bg);
  border-radius: var(--radius);
  transition: var(--transition);
}
.promise-item:hover { background: var(--white); box-shadow: var(--shadow); }
.promise-icon { font-size: 26px; flex-shrink: 0; margin-top: 2px; }
.promise-item h4 { font-size: 16px; margin-bottom: 6px; font-weight: 700; }
.promise-item p { font-size: 14px; color: var(--text-light); line-height: 1.7; }

/* ========================================
   Contact
   ======================================== */
.contact-section { padding: 60px 0; }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 440px;
  gap: 36px;
}
.contact-info h2 { font-size: 24px; margin-bottom: 24px; font-weight: 700; }
.info-card {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-bottom: 18px;
  transition: var(--transition);
}
.info-card:hover { background: var(--white); box-shadow: var(--shadow); }
.info-phone { background: linear-gradient(135deg, #1a73e8, #0d47a1); color: white; }
.info-phone h3 { color: white; }
.info-card h3 { font-size: 17px; margin-bottom: 10px; font-weight: 700; }
.info-card p { font-size: 14px; color: var(--text-light); margin-bottom: 6px; line-height: 1.7; }
.op-phones { list-style: none; margin-top: 10px; }
.op-phones li { padding: 6px 0; font-size: 14px; color: var(--text-light); display: flex; align-items: center; gap: 8px; }

.contact-map h2 { font-size: 24px; margin-bottom: 18px; font-weight: 700; }
.map-placeholder {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 80px 20px;
  text-align: center;
  margin-bottom: 18px;
  border: 2px dashed var(--border);
  color: var(--text-lighter);
  font-size: 15px;
}
.map-note p { font-size: 14px; color: var(--text-light); margin-bottom: 6px; line-height: 1.7; }

.contact-cta {
  text-align: center;
  margin-top: 48px;
  padding: 42px;
  background: var(--bg);
  border-radius: var(--radius-lg);
}
.contact-cta h2 { font-size: 24px; margin-bottom: 10px; font-weight: 700; }
.contact-cta p { color: var(--text-light); margin-bottom: 24px; }

/* ========================================
   404
   ======================================== */
.error-section { padding: 120px 0; }
.error-box {
  text-align: center;
  max-width: 480px;
  margin: 0 auto;
}
.error-code { font-size: 96px; font-weight: 900; color: var(--primary); line-height: 1; }
.error-box h1 { font-size: 30px; margin: 20px 0 16px; font-weight: 700; }
.error-box p { color: var(--text-light); margin-bottom: 28px; font-size: 16px; }
.error-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

/* ========================================
   Footer
   ======================================== */
.footer {
  background: #111827;
  color: #9ca3af;
  padding: 64px 0 0;
  margin-top: 80px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-col h4 {
  color: white;
  font-size: 17px;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 12px;
  font-weight: 700;
}
.footer-col h4::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
}
.footer-col p { font-size: 14px; line-height: 1.9; margin-bottom: 10px; }
.footer-phone { font-size: 22px; color: #ffd700; font-weight: 800; }
.footer-col ul { }
.footer-col li { margin-bottom: 8px; }
.footer-col a { color: #9ca3af; font-size: 14px; text-decoration: none; transition: var(--transition); }
.footer-col a:hover { color: var(--accent); text-decoration: none; padding-left: 4px; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: #6b7280;
}
.footer-bottom a { color: #6b7280; }
.footer-bottom a:hover { color: var(--accent); }

/* ========================================
   Float Bar
   ======================================== */
.float-bar {
  position: fixed;
  right: 20px;
  bottom: 120px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.float-bar a {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  color: white !important;
  font-size: 11px;
  text-decoration: none !important;
  text-align: center;
  line-height: 1.3;
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
  transition: var(--transition);
}
.float-bar a:hover { transform: scale(1.12); text-decoration: none !important; }
.float-phone { background: linear-gradient(135deg, var(--primary), #0d47a1); }
.float-yuyue { background: linear-gradient(135deg, var(--accent), #f7931e); }

/* ========================================
   Back to Top
   ======================================== */
.back-to-top {
  position: fixed;
  right: 20px;
  bottom: 56px;
  width: 44px;
  height: 44px;
  background: var(--text);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  cursor: pointer;
  z-index: 998;
  text-decoration: none;
}
.back-to-top.show { opacity: 1; visibility: visible; }
.back-to-top:hover { background: var(--primary); transform: translateY(-3px); }

/* ========================================
   Animations
   ======================================== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.fade-in-up {
  animation: fadeInUp 0.5s ease forwards;
  opacity: 0;
}
.fade-in-up:nth-child(1) { animation-delay: 0.05s; }
.fade-in-up:nth-child(2) { animation-delay: 0.1s; }
.fade-in-up:nth-child(3) { animation-delay: 0.15s; }
.fade-in-up:nth-child(4) { animation-delay: 0.2s; }

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1024px) {
  .fttr-content { grid-template-columns: 1fr; }
  .about-intro { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .yuyue-wrap { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }

  /* 导航栏：1024px以下显示汉堡菜单 */
  .header .container { flex-wrap: wrap; height: auto; padding: 12px 16px; position: relative; }
  .logo { flex-shrink: 0; }
  .nav {
    display: none !important;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 12px 16px;
    box-shadow: var(--shadow-lg);
    border-top: 1px solid var(--border);
    border-radius: 0 0 var(--radius) var(--radius);
    z-index: 999;
  }
  .nav.show { display: flex !important; }
  .hamburger { display: flex !important; }
  .hero { padding: 60px 0 50px; }
  .hero h1 { font-size: 32px; }
}

@media (max-width: 768px) {
  .hero { padding: 50px 0 40px; }
  .hero h1 { font-size: 26px; }
  .hero-subtitle { font-size: 16px; }
  .phone-big { font-size: 30px; }
  .hero-phone { flex-direction: column; gap: 12px; }
  
  .op-grid { grid-template-columns: 1fr; max-width: 400px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .pkg-grid { grid-template-columns: 1fr; max-width: 400px; }
  .scene-grid { grid-template-columns: repeat(2, 1fr); }
  .advantage-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  
  .process-steps { flex-direction: column; }
  .step-arrow { transform: rotate(90deg); }
  .step { max-width: 200px; }
  
  .page-hero { padding: 48px 0 40px; }
  .page-hero h1 { font-size: 26px; }
  .section-title { font-size: 24px; }
  
  .yuyue-form-wrap { padding: 28px 20px; }
  .success-box { padding: 40px 24px; }
  .cta-box { padding: 40px 24px; }
  
  .float-bar { right: 12px; bottom: 80px; }
  .float-bar a { width: 52px; height: 52px; font-size: 10px; }
  .back-to-top { right: 12px; bottom: 44px; width: 40px; height: 40px; }
}

@media (max-width: 480px) {
  .feature-grid { grid-template-columns: 1fr; }
  .scene-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .d-nodes-sub { grid-template-columns: 1fr; }
  .top-bar .container { flex-direction: column; text-align: center; }
  .success-actions { flex-direction: column; }
  .cta-buttons { flex-direction: column; align-items: center; }
  .about-badge { grid-template-columns: 1fr; }
  .hero h1 { font-size: 24px; }
  .section-title { font-size: 22px; }
}

/* ========================================
   Speed Test Section
   ======================================== */
.speed-section { padding: 60px 0; background: var(--bg); }
.speed-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
}
.speed-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  position: relative;
  transition: var(--transition);
  border: 2px solid transparent;
}
.speed-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.speed-card-hot { border-color: var(--yidong); }
.speed-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--yidong);
  color: white;
  padding: 4px 18px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
}
.speed-band { font-size: 28px; font-weight: 900; color: var(--yidong); margin-bottom: 18px; }
.speed-bar-wrap { height: 12px; background: #e8f4fd; border-radius: 6px; margin-bottom: 14px; overflow: hidden; }
.speed-bar { height: 100%; border-radius: 6px; transition: width 1s ease; }
.speed-300 { width: 30%; background: linear-gradient(90deg, #81d4fa, var(--yidong)); }
.speed-500 { width: 50%; background: linear-gradient(90deg, var(--yidong), #0277bd); }
.speed-1000 { width: 100%; background: linear-gradient(90deg, #0277bd, #01579b); }
.speed-info { }
.speed-num { display: block; font-size: 20px; font-weight: 800; color: var(--text); margin-bottom: 6px; }
.speed-use { display: block; font-size: 13px; color: var(--text-light); }
.speed-compare-note {
  max-width: 600px;
  margin: 28px auto 0;
  text-align: center;
  font-size: 14px;
  color: var(--text-light);
  background: #e3f2fd;
  padding: 16px 24px;
  border-radius: var(--radius);
  border-left: 4px solid var(--yidong);
}

/* ========================================
   Crowd Section
   ======================================== */
.crowd-section { padding: 60px 0; }
.crowd-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  max-width: 900px;
  margin: 0 auto;
}
.crowd-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.crowd-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.crowd-suitable { border-top: 4px solid #43a047; }
.crowd-consider { border-top: 4px solid #ffa726; }
.crowd-icon { font-size: 36px; margin-bottom: 14px; }
.crowd-card h4 { font-size: 19px; font-weight: 700; margin-bottom: 16px; }
.crowd-card ul { margin-bottom: 20px; }
.crowd-card li { padding: 8px 0; font-size: 14px; color: var(--text-light); border-bottom: 1px solid #f5f5f5; display: flex; align-items: center; gap: 8px; }
.crowd-card li:last-child { border-bottom: none; }
.crowd-tip { background: var(--bg); padding: 10px 16px; border-radius: var(--radius); font-size: 13px; font-weight: 600; color: var(--primary); }

/* ========================================
   Hot Community Tags
   ======================================== */
.hot-comm-section { padding: 60px 0; background: var(--bg); }
.hot-comm-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  max-width: 900px;
  margin: 0 auto;
}
.hot-comm-note { text-align: center; margin-top: 28px; font-size: 14px; color: var(--text-light); }

/* ========================================
   Three-Way Compare
   ======================================== */
.compare3-section { padding: 60px 0; }
.compare3-wrap { overflow-x: auto; border-radius: var(--radius); box-shadow: var(--shadow); }
.compare3-table { width: 100%; border-collapse: collapse; background: var(--white); }
.compare3-table th {
  background: var(--primary);
  color: white;
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 600;
}
.compare3-table th.th-yidong { background: var(--yidong); }
.compare3-table th.th-liantong { background: var(--liantong); }
.compare3-table th.th-dianxin { background: var(--dianxin); }
.compare3-table td {
  padding: 14px 20px;
  border-bottom: 1px solid #f0f0f0;
  font-size: 14px;
  text-align: center;
}
.compare3-table td:first-child { text-align: left; font-weight: 600; color: var(--text); }
.compare3-table tr:hover { background: #fafbff; }
.compare3-table tr:last-child td { border-bottom: none; }
.cell-hot { color: var(--accent); font-weight: 700; }

/* ========================================
   Responsive for New Sections
   ======================================== */
@media (max-width: 768px) {
  .speed-grid { grid-template-columns: 1fr; max-width: 360px; }
  .crowd-grid { grid-template-columns: 1fr; }
  .compare3-table { font-size: 13px; }
  .compare3-table th, .compare3-table td { padding: 12px 10px; }
}

/* ========================================
   Package Cards (Mobile Style)
   ======================================== */
.pkg-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 28px;
}
.pkg-card-yidong {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 2px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}
.pkg-card-yidong:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.pkg-card-yidong-hot {
  border-color: var(--yidong);
  background: linear-gradient(180deg, #e6f5fd 0%, #ffffff 60%);
}
.pkg-card-yidong-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--yidong);
  color: white;
  padding: 4px 18px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}
.pkg-card-yidong-icon { font-size: 40px; margin-bottom: 10px; }
.pkg-card-yidong-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}
.pkg-card-yidong-speed {
  font-size: 26px;
  font-weight: 900;
  color: var(--yidong);
  margin-bottom: 8px;
}
.pkg-card-yidong-price {
  font-size: 32px;
  font-weight: 900;
  color: var(--accent);
  margin-bottom: 14px;
}
.pkg-card-yidong-price span { font-size: 14px; font-weight: 400; color: var(--text-light); }
.pkg-card-yidong-features {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}
.pkg-card-yidong-features span { font-size: 13px; color: var(--text-light); }
.pkg-card-yidong-fit { font-size: 12px; color: var(--text-lighter); margin-bottom: 16px; }
.btn-yidong-card {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--yidong);
  color: white !important;
  padding: 10px 28px;
  border-radius: 25px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: var(--transition);
  width: 100%;
  margin-top: auto;
}
.btn-yidong-card:hover {
  background: #0088cc;
  transform: translateY(-2px);
  text-decoration: none !important;
}
.btn-yidong-card-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--yidong);
  color: var(--yidong) !important;
  padding: 10px 28px;
  border-radius: 25px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: var(--transition);
  width: 100%;
  margin-top: auto;
  background: transparent;
}
.btn-yidong-card-outline:hover {
  background: var(--yidong);
  color: white !important;
  text-decoration: none !important;
  transform: translateY(-2px);
}

/* 融合套餐 */
.pkg-fusion-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: linear-gradient(135deg, #0055a4, #003d7a);
  color: white;
  border-radius: var(--radius-lg);
  padding: 28px 36px;
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
}
.pkg-fusion-box::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -5%;
  width: 200px;
  height: 200px;
  background: rgba(255,255,255,0.04);
  border-radius: 50%;
}
.fusion-left { display: flex; align-items: center; gap: 18px; flex: 1; }
.fusion-icon { font-size: 44px; flex-shrink: 0; }
.fusion-info h3 { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.fusion-info p { font-size: 14px; opacity: 0.9; line-height: 1.6; }
.fusion-sub { font-size: 12px !important; opacity: 0.75 !important; margin-top: 4px; }
.fusion-price {
  font-size: 36px;
  font-weight: 900;
  color: #ffd700;
  white-space: nowrap;
  flex-shrink: 0;
}
.fusion-price span { font-size: 14px; font-weight: 400; color: rgba(255,255,255,0.8); }
.btn-fusion {
  background: #ffd700;
  color: #0055a4 !important;
  padding: 12px 28px;
  border-radius: 25px;
  font-size: 15px;
  font-weight: 800;
  text-decoration: none;
  transition: var(--transition);
  flex-shrink: 0;
  white-space: nowrap;
}
.btn-fusion:hover {
  background: #fff;
  transform: translateY(-2px);
  text-decoration: none !important;
}

/* Crowd tip colors */
.crowd-tip-green { background: #e8f5e9; color: #2e7d32; }
.crowd-tip-orange { background: #fff3e0; color: #e65100; }

@media (max-width: 768px) {
  .pkg-cards-grid { grid-template-columns: 1fr; max-width: 380px; margin: 0 auto 28px; }
  .pkg-fusion-box { flex-direction: column; text-align: center; padding: 24px 20px; }
  .fusion-left { flex-direction: column; }
  .fusion-price { font-size: 28px; }
}

/* ========================================
   Header Responsive
   ======================================== */
@media (max-width: 1024px) {
  .phone-text { display: none; }
  .header-phone { padding: 10px; }
  .header-phone i { font-size: 18px; }
  
  /* 隐藏主导航栏，显示汉堡菜单 */
  .main-nav { display: none; }
  .hamburger { display: flex; }
}

@media (max-width: 768px) {
  .header .container { height: 56px; padding: 8px 16px; }
  .logo-text { font-size: 22px; }
  .logo-badge { font-size: 10px; padding: 3px 8px; }
  .btn-yuyue { padding: 8px 14px !important; font-size: 13px !important; }
  .header-phone { display: none; }
  .hamburger { display: flex; }
}

@media (max-width: 480px) {
  .logo-text { font-size: 20px; }
  .logo-badge { display: none; }
  .btn-yuyue { padding: 6px 12px !important; font-size: 12px !important; }
}

/* ========================================
   Mobile Menu
   ======================================== */
.mobile-menu {
  position: fixed;
  top: 56px;
  left: 0;
  right: 0;
  background: rgba(255,255,255,0.98);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  z-index: 999;
}
.mobile-menu.show {
  max-height: calc(100vh - 56px);
  overflow-y: auto;
}
.mobile-menu a {
  display: block;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  transition: var(--transition);
}
.mobile-menu a:hover {
  background: var(--primary-light);
  color: var(--primary);
  padding-left: 24px;
}
.mobile-menu a:last-child {
  border-bottom: none;
  color: var(--accent);
  font-weight: 700;
}