/**
 * 朝霞物流官网 - styles.css (Redesigned)
 * 现代化设计 | 深墨蓝+亮橙配色
 */

/* =============================================
   1. CSS Variables & Reset
   ============================================= */
:root {
  --color-primary: #0c1829;
  --color-primary-dark: #080f1a;
  --color-primary-light: #1a2744;
  --color-primary-mid: #152035;
  --color-secondary: #ff6b35;
  --color-secondary-dark: #e55a28;
  --color-secondary-light: #ff8555;
  --color-accent: #00c9a7;
  --color-accent-dark: #00a88b;
  --color-accent-light: #33d4b8;
  --color-bg: #f8f9fc;
  --color-bg-alt: #f0f2f7;
  --color-text: #1a1a2e;
  --color-text-light: #6b7280;
  --color-text-muted: #9ca3af;
  --color-white: #ffffff;
  --color-border: #e5e7eb;
  --color-border-light: #f0f2f7;

  --font-family: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-md: 1.125rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 1.875rem;
  --font-size-3xl: 2.25rem;
  --font-size-4xl: 3rem;
  --font-size-5xl: 3.75rem;

  --line-height-tight: 1.15;
  --line-height-snug: 1.35;
  --line-height-normal: 1.6;
  --line-height-relaxed: 1.8;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-2xl: 28px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 8px rgba(12,24,41,0.04);
  --shadow-md: 0 4px 16px rgba(12,24,41,0.06);
  --shadow-lg: 0 12px 40px rgba(12,24,41,0.08);
  --shadow-xl: 0 24px 60px rgba(12,24,41,0.12);
  --shadow-card-hover: 0 20px 50px rgba(12,24,41,0.12);

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

  --container-max: 1200px;
  --topbar-height: 42px;
  --header-height: 70px;
  --section-padding: 80px 0;
}
/* P2 Fix: Section 间距兜底 — 未单独定义 padding 的 section 使用全局值 */
.page-section {
  padding: var(--section-padding);
}



/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition-base); }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }

::selection { background: var(--color-secondary); color: #fff; }
:focus-visible { outline: 2px solid var(--color-secondary); outline-offset: 3px; }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: #c5c9d4; border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--color-text-muted); }

/* =============================================
   2. Global Components
   ============================================= */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-10);
}

.section-subtitle {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-secondary);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: var(--space-4);
  position: relative;
  padding: 0 var(--space-6);
}
.section-subtitle::before,
.section-subtitle::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 24px;
  height: 2px;
  background: var(--color-secondary);
  opacity: 0.4;
}
.section-subtitle::before { right: 100%; }
.section-subtitle::after { left: 100%; }

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: var(--line-height-tight);
  margin-bottom: var(--space-4);
  letter-spacing: -0.01em;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--color-text-light);
  max-width: 560px;
  margin: 0 auto;
  line-height: var(--line-height-relaxed);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  cursor: pointer;
  white-space: nowrap;
  border: 2px solid transparent;
}
.btn-primary {
  background: var(--color-secondary);
  color: #fff;
  border-color: var(--color-secondary);
}
.btn-primary:hover {
  background: var(--color-secondary-dark);
  border-color: var(--color-secondary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255,107,53,0.35);
}
.btn-outline {
  background: rgba(12, 24, 41, 0.35);
  color: #fff;
  border-color: rgba(255,255,255,0.85);
  backdrop-filter: blur(8px);
  font-weight: 700;
}
.btn-outline:hover {
  background: #fff;
  color: var(--color-primary);
  border-color: #fff;
  transform: translateY(-2px);
}
.btn-more {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 12px 28px;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-secondary);
  border: 2px solid var(--color-secondary);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}
.btn-more:hover {
  background: var(--color-secondary);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255,107,53,0.3);
}

/* =============================================
   3. Top Bar
   ============================================= */
.top-bar {
  background: var(--color-primary);
  color: rgba(255,255,255,0.85);
  font-size: var(--font-size-xs);
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  position: relative;
  z-index: 1001;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.top-bar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.top-bar-left {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.welcome { white-space: nowrap; color: rgba(255, 255, 255, 0.85); }
.work-time { white-space: nowrap; }
.top-bar-left .separator {
  color: rgba(255,255,255,0.15);
}
.top-bar-right {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.top-bar a {
  color: rgba(255, 255, 255, 0.85);
  transition: color var(--transition-base);
}
.top-bar a:hover { color: var(--color-secondary); }
.top-phone { font-weight: 600; }
.top-link { font-size: var(--font-size-xs); }

/* =============================================
   4. Header & Navigation
   ============================================= */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(12,24,41,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background var(--transition-base), box-shadow var(--transition-base), backdrop-filter var(--transition-base);
}
.header.scrolled {
  background: rgba(12,24,41,0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 2px 20px rgba(12,24,41,0.2);
}
.header.scrolled .logo-text { color: #fff; }
.header.scrolled .logo-slogan { color: rgba(255,255,255,0.65); }
.header.scrolled .main-nav > ul > li > a { color: rgba(255,255,255,0.8); }
.header.scrolled .main-nav > ul > li > a:hover,
.header.scrolled .main-nav > ul > li > a.active { color: #fff; }
.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Logo */
.logo a {
  display: flex;
  flex-direction: column;
  text-decoration: none;
}
.logo-text {
  font-size: 1.4rem;
  font-weight: 900;
  color: #fff;
  line-height: 1.1;
  letter-spacing: 0.04em;
}
.logo-slogan {
  font-size: 0.65rem;
  color: rgba(255,255,255,0.75);
  letter-spacing: 0.15em;
  margin-top: 3px;
}

/* Main Nav */
.main-nav ul {
  display: flex;
  align-items: center;
  gap: 2px;
}

/* 下拉子菜单：强制竖向，覆盖 main-nav 的 flex 横向 */
.main-nav .dropdown-menu {
  display: flex !important;
  flex-direction: column !important;
  align-items: stretch !important;
  gap: 0 !important;
}
.main-nav > ul > li > a {
  display: block;
  padding: var(--space-2) var(--space-4);
  color: rgba(255,255,255,0.9);
  font-size: 1rem;
  font-weight: 500;
  transition: all var(--transition-base);
  position: relative;
  border-radius: var(--radius-sm);
}
.main-nav > ul > li > a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: var(--space-4);
  right: var(--space-4);
  height: 2px;
  background: var(--color-secondary);
  border-radius: 2px;
  transform: scaleX(0);
  transition: transform var(--transition-base);
}
.main-nav > ul > li > a:hover,
.main-nav > ul > li > a.active {
  color: #fff;
}
.main-nav > ul > li > a:hover::after,
.main-nav > ul > li > a.active::after {
  transform: scaleX(1);
}

/* Dropdown */
.dropdown {
  position: relative;
}
.dropdown-menu {
  position: absolute;
  top: calc(100% + 4px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 180px;
  background: #ffffff;
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 48px rgba(12,24,41,0.2), 0 4px 16px rgba(0,0,0,0.1);
  padding: var(--space-2) 0;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
  z-index: 9999;
  border: 1px solid rgba(12,24,41,0.08);
  display: flex !important;
  flex-direction: column !important;
}
.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu,
.dropdown-menu.show {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.dropdown-menu li {
  white-space: normal;
}
.dropdown-menu li a {
  display: block;
  padding: 10px 20px;
  color: #1a2535;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.2s ease;
}
.dropdown-menu li a:hover {
  background: linear-gradient(135deg, rgba(255,107,53,0.08), rgba(255,107,53,0.14));
  color: #d94a1e;
}

/* Header Right */
.header-right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}
.btn-call {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-secondary);
  color: #fff;
  padding: 10px 22px;
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 600;
  transition: all var(--transition-base);
}
.btn-call:hover {
  background: var(--color-secondary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(255,107,53,0.35);
  color: #fff;
}
.call-icon { font-size: var(--font-size-base); }
.call-text { font-size: var(--font-size-sm); }

/* Hamburger */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  cursor: pointer;
  z-index: 1002;
}
.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all var(--transition-base);
  transform-origin: center;
}
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =============================================
   5. Hero Section
   ============================================= */
.hero-section {
  position: relative;
  min-height: 70vh;
  height: auto;
  max-height: 900px;
  overflow: hidden;
}

.hero-slider {
  position: absolute;
  inset: 0;
  width: 100%;
}

.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 1s ease, visibility 1s ease;
}
.hero-slide.active {
  opacity: 1;
  visibility: visible;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(12,24,41,0.75) 0%,
    rgba(12,24,41,0.55) 40%,
    rgba(26,39,68,0.70) 100%
  );
}

.hero-slide .container {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  align-items: center;
}

.hero-content {
  max-width: 700px;
  padding: var(--space-20) 0;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(255,107,53,0.12);
  border: 1px solid rgba(255,107,53,0.25);
  color: var(--color-secondary-light);
  padding: 8px 20px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: var(--space-8);
  backdrop-filter: blur(8px);
  letter-spacing: 0.02em;
}

.hero-section h1,
.hero-section h2 {
  font-size: clamp(2rem, 5.5vw, 4.5rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
  margin-bottom: var(--space-6);
  letter-spacing: -0.02em;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
}

.hero-section ::selection {
  background: var(--color-secondary);
  color: #fff;
}

.hero-desc {
  font-size: clamp(0.95rem, 1.6vw, 1.2rem);
  color: rgba(255, 255, 255, 0.92);
  line-height: 1.8;
  margin-bottom: var(--space-10);
  max-width: 560px;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.4);
}

.hero-buttons {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

/* Hero Navigation */
.hero-nav {
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  transform: translateY(-50%);
  z-index: 20;
  display: flex;
  justify-content: space-between;
  padding: 0 var(--space-6);
  pointer-events: none;
}
.hero-nav-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(12, 24, 41, 0.55);
  color: #fff;
  font-size: 26px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all var(--transition-base);
  pointer-events: auto;
  cursor: pointer;
  border: 1.5px solid rgba(255, 255, 255, 0.35);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.35);
}
.hero-nav-btn:hover {
  background: var(--color-secondary);
  border-color: var(--color-secondary);
  color: #fff;
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(255, 107, 53, 0.45);
}

/* Hero Dots */
.hero-dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 20;
  display: flex;
  gap: var(--space-3);
}
.hero-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
}
.hero-dot.active {
  background: var(--color-secondary);
  border-color: var(--color-secondary);
  width: 32px;
  border-radius: var(--radius-full);
  position: relative;
  overflow: hidden;
}
.hero-dot.active::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.7);
  transform-origin: left center;
  animation: heroDotProgress 5s linear forwards;
}
.hero-section:hover .hero-dot.active::after {
  animation-play-state: paused;
}
@keyframes heroDotProgress {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}
.hero-dot:hover {
  background: rgba(255,255,255,0.5);
}

/* Hero Search */
.hero-search {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 5;
  padding: var(--space-6) 0 var(--space-6);
}
.search-box {
  max-width: 480px;
  margin: 0 auto;
}
.search-form {
  display: flex;
  background: rgba(0,0,0,0.25);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-full);
  overflow: hidden;
  backdrop-filter: blur(12px);
}
.search-input-group {
  display: flex;
  align-items: center;
  flex: 1;
  padding: 0 var(--space-4);
}
.search-input {
  flex: 1;
  background: none;
  border: none;
  color: #fff;
  font-size: var(--font-size-sm);
  padding: 10px var(--space-2);
  outline: none;
}
.search-input::placeholder { color: rgba(255,255,255,0.55); }
.search-divider {
  color: rgba(255,255,255,0.4);
  font-size: 0.9rem;
  padding: 0 var(--space-2);
  font-weight: 600;
}
.search-btn {
  background: rgba(255,107,53,0.7);
  color: #fff;
  font-size: var(--font-size-sm);
  font-weight: 600;
  padding: 10px 20px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  border-radius: 0 var(--radius-full) var(--radius-full) 0;
}
.search-btn:hover { 
  background: var(--color-secondary);
}

.hot-routes {
  text-align: center;
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-3);
}
.hot-routes span {
  margin-right: var(--space-1);
}
.hot-routes a {
  color: rgba(255,255,255,0.9);
  margin: 0 var(--space-2);
  transition: all var(--transition-base);
}
.hot-routes a:hover { color: var(--color-secondary); }

/* =============================================
   6. Advantages Section
   ============================================= */
.advantages-section {
  padding: var(--section-padding);
  background: var(--color-white);
  position: relative;
}
.advantages-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.advantage-card {
  text-align: center;
  padding: var(--space-10) var(--space-6);
  border-radius: var(--radius-xl);
  background: var(--color-white);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-slow);
  position: relative;
  overflow: hidden;
}
.advantage-card::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-secondary), var(--color-secondary-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slow);
}
.advantage-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-card-hover);
  border-color: transparent;
  background: var(--color-white);
}
.advantage-card:hover::after { transform: scaleX(1); }

/* 触摸按下反馈（移动端） */
.advantage-card:active {
  transform: scale(0.97);
}

.advantage-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-6);
  background: linear-gradient(135deg, var(--color-bg), var(--color-bg-alt));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  transition: all var(--transition-base);
}
.advantage-icon svg {
  width: 32px;
  height: 32px;
}
.advantage-card:hover .advantage-icon {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  color: #fff;
  transform: scale(1.05);
}
.advantage-card:hover .advantage-icon svg { stroke: #fff; }

.advantage-number {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-secondary);
  line-height: 1;
  margin-bottom: var(--space-4);
  opacity: 0.35;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.advantage-body {
  padding: 0 var(--space-2);
}

.advantage-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}
.advantage-card p {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-5);
}
.learn-more {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-secondary);
  transition: all var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}
.learn-more:hover { 
  color: var(--color-secondary-dark);
  gap: var(--space-2);
}

/* =============================================
   7. Services Section
   ============================================= */
.services-section {
  padding: var(--section-padding);
  background: var(--color-bg);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.service-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-slow);
  display: flex;
  flex-direction: column;
  height: 100%;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  border-color: transparent;
}

/* 触摸按下反馈（移动端） */
.service-card:active {
  transform: scale(0.98);
  box-shadow: var(--shadow-sm);
}

.service-image {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}
.service-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.service-card:hover .service-image img { transform: scale(1.08); }

.service-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(12,24,41,0.7) 0%, rgba(12,24,41,0) 60%);
  display: flex;
  align-items: flex-end;
  padding: var(--space-5);
  opacity: 0;
  transition: opacity var(--transition-base);
}
.service-card:hover .service-overlay { opacity: 1; }

.service-pill {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
  z-index: 2;
  padding: 4px 14px;
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
  border-radius: var(--radius-full);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  box-shadow: 0 2px 8px rgba(255,107,53,0.3);
}

.service-icon {
  font-size: 2.2rem;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}

.service-content {
  padding: var(--space-6) var(--space-8);
  display: flex;
  flex-direction: column;
  flex: 1;
}
.service-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}
.service-content > p {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-4);
}

.service-features {
  margin-bottom: var(--space-6);
}
.service-features li {
  position: relative;
  padding-left: var(--space-5);
  font-size: var(--font-size-sm);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.service-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.btn-service {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-secondary);
  transition: all var(--transition-base);
  margin-top: auto;
  align-self: flex-start;
}
.btn-service:hover { color: var(--color-secondary-dark); gap: var(--space-2); }
.btn-service:active { transform: scale(0.96); }

.services-more {
  text-align: center;
  margin-top: var(--space-12);
}

/* =============================================
   8. Routes Section
   ============================================= */
.routes-section {
  padding: var(--section-padding);
  background: var(--color-white);
}

.routes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
  margin-top: var(--space-10);
}

/* ── 路线卡片 ── */
.route-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-8) var(--space-5) var(--space-6);
  background: linear-gradient(160deg, #1a2f45 0%, #0f2027 100%);
  border-radius: var(--radius-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid rgba(255,255,255,0.08);
}
.route-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,107,53,0.15) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.35s;
}
.route-card {
  border-left: 3px solid transparent;
  transition: transform var(--transition-slow), box-shadow var(--transition-slow), border-color var(--transition-slow);
}
.route-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(12,24,41,0.3);
  border-left-color: var(--color-secondary);
}
.route-card:hover::after { opacity: 1; }

/* 触摸按下反馈（移动端） */
.route-card:active {
  transform: scale(0.97);
}

/* ── 江浙沪优先线路（第一排） ── */
.route-priority {
  background: linear-gradient(160deg, var(--color-secondary) 0%, #e55a28 100%);
  border: 2px solid rgba(255,255,255,0.3);
}
.route-priority .city-dot {
  background: var(--color-white);
  color: var(--color-secondary);
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.route-priority .route-label {
  color: #fff;
  font-weight: 800;
}
.route-priority .meta-time {
  color: rgba(240,240,245,0.9);
  font-weight: 600;
}
.route-priority .meta-freq {
  background: linear-gradient(135deg, var(--color-secondary), #e55a28);
  color: #fff;
  border: none;
  box-shadow: 0 2px 8px rgba(255,107,53,0.3);
}
.route-priority::before {
  content: "★";
  position: absolute;
  top: 12px;
  right: 12px;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
}
.route-priority:hover {
  transform: translateY(-10px) scale(1.03);
  box-shadow: 0 20px 50px rgba(255,107,53,0.4);
}

/* ── 可视化：城市节点 + 箭头线 ── */
.route-visual {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  position: relative;
  z-index: 1;
}

.city-dot {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--color-primary);
  background: var(--color-white);
  box-shadow: 0 4px 16px rgba(12,24,41,0.2);
  flex-shrink: 0;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}
.city-dot::after {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.3);
}
.route-card:hover .city-dot {
  background: var(--color-secondary);
  color: var(--color-white);
  transform: scale(1.12);
  box-shadow: 0 6px 20px rgba(255,107,53,0.4);
}
.route-card:hover .city-dot::after {
  border-color: rgba(255,255,255,0.6);
}

/* 箭头连线 */
.route-arrow-line {
  flex: 1;
  min-width: 50px;
  max-width: 80px;
  position: relative;
  display: flex;
  align-items: center;
}
.arrow-track {
  flex: 1;
  height: 2px;
  background: linear-gradient(90deg, rgba(255,255,255,0.5), rgba(255,107,53,0.8), rgba(255,255,255,0.5));
  border-radius: 2px;
  position: relative;
  overflow: hidden;
}
/* 流动动画 */
.arrow-track::after {
  content: "";
  position: absolute;
  top: 0; left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.8), transparent);
  animation: arrow-flow 2s linear infinite;
}
@keyframes arrow-flow {
  0%   { left: -50%; }
  100% { left: 150%; }
}
.route-card:hover .arrow-track {
  background: linear-gradient(90deg, rgba(255,255,255,0.4), rgba(255,107,53,1), rgba(255,255,255,0.4));
}
.arrow-head {
  width: 18px;
  height: auto;
  color: rgba(255,255,255,0.75);
  flex-shrink: 0;
  margin-left: -2px;
  transition: color 0.35s, transform 0.35s;
}
.route-card:hover .arrow-head {
  color: var(--color-secondary-light);
  transform: translateX(4px);
}

/* ── 路线名 ── */
.route-label {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-secondary);
  margin-bottom: var(--space-4);
  letter-spacing: 0.02em;
  position: relative;
  z-index: 1;
  text-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

/* ── 元信息 ── */
.route-meta {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  position: relative;
  z-index: 1;
}
.meta-time {
  font-size: var(--font-size-sm);
  color: rgba(240,240,245,0.9);
  font-weight: 600;
}
.meta-freq {
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--color-secondary), #e55a28);
  padding: 5px 16px;
  border-radius: var(--radius-full);
  border: none;
  text-shadow: 0 1px 3px rgba(0,0,0,0.2);
  box-shadow: 0 2px 8px rgba(255,107,53,0.3);
}

.routes-more {
  text-align: center;
  margin-top: var(--space-10);
}

/* =============================================
   9. Stats Section
   ============================================= */
.stats-section {
  padding: var(--space-10) 0;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #0f2027 0%, #203a43 50%, #2c5364 100%);
}
.stats-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}
.stats-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(12,24,41,0.93) 0%, rgba(21,32,53,0.96) 100%);
}
.stats-section .container {
  position: relative;
  z-index: 2;
}

/* 超紧凑单行布局 - 6个卡片一排 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-8);
}

.stat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-2);
  background: linear-gradient(145deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.02) 100%);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-xl);
  position: relative;
  transition: all 0.3s ease;
}
.stat-card {
  border-top: 2px solid transparent;
}
.stat-card:hover {
  background: linear-gradient(145deg, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0.04) 100%);
  border-color: rgba(255,107,53,0.3);
  border-top-color: var(--color-secondary);
  transform: translateY(-4px);
}
.stat-card:not(:last-child)::after {
  display: none;
}
.stat-icon {
  width: 36px;
  height: 36px;
  color: var(--color-secondary);
  opacity: 0.9;
  margin-bottom: var(--space-1);
}
.stat-icon svg {
  width: 36px;
  height: 36px;
}
.stat-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}
.stat-number {
  font-size: 1.4rem;
  font-weight: 800;
  background: linear-gradient(135deg, #fff 0%, var(--color-secondary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.stat-unit {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-secondary);
  -webkit-text-fill-color: var(--color-secondary);
}
.stat-label {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: 0.02em;
  font-weight: 500;
  white-space: nowrap;
}
.stat-desc {
  font-size: 0.65rem;
  color: rgba(255, 255, 255, 0.8);
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.stat-award {
  font-size: 1.2rem !important;
  letter-spacing: 0.03em;
}

.stat-divider {
  width: 30px;
  height: 2px;
  margin: var(--space-3) auto;
  background: linear-gradient(90deg, var(--color-secondary), transparent);
  border-radius: 1px;
}

/* =============================================
   10. Cases Section
   ============================================= */
.cases-section {
  padding: var(--section-padding);
  background: var(--color-bg);
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-8);
}

.case-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-slow);
}
.case-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-secondary);
}

/* 触摸按下反馈（移动端） */
.case-card:active {
  transform: scale(0.98);
}

.case-image {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}
.case-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.case-card:hover .case-image img { transform: scale(1.05); }

.case-overlay {
  position: absolute;
  top: var(--space-4);
  left: var(--space-4);
}
.case-category {
  background: var(--color-secondary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  letter-spacing: 0.03em;
}

.case-content {
  padding: var(--space-6) var(--space-8);
}
.case-content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}
.case-client {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}
.case-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-4);
}

.case-results {
  display: flex;
  gap: var(--space-6);
  margin-bottom: var(--space-4);
  padding: var(--space-4) 0;
  border-top: 1px solid var(--color-border-light);
}
.result-item { text-align: center; flex: 1; }
.result-number {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-secondary);
  display: block;
}
.result-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.btn-case {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
  transition: all var(--transition-base);
}
.btn-case:hover { color: var(--color-secondary); }

.cases-more {
  text-align: center;
  margin-top: var(--space-12);
}

/* =============================================
   11. CTA Section
   ============================================= */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 50%, var(--color-primary-dark) 100%);
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -5%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255,107,53,0.08) 0%, transparent 70%);
  border-radius: 50%;
}
.cta-section::after {
  content: "";
  position: absolute;
  bottom: -30%;
  left: -8%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0,201,167,0.06) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-section .container {
  position: relative;
  z-index: 1;
}

.cta-geo {
  position: absolute;
  border-radius: 50%;
  opacity: 0.06;
  pointer-events: none;
}
.cta-geo-1 {
  top: -20%;
  right: -8%;
  width: 500px;
  height: 500px;
  background: var(--color-secondary);
}
.cta-geo-2 {
  bottom: -25%;
  left: -5%;
  width: 350px;
  height: 350px;
  background: var(--color-secondary);
}
.cta-geo-3 {
  top: 30%;
  right: 20%;
  width: 200px;
  height: 200px;
  background: var(--color-secondary-light);
}

.cta-inner {
  text-align: center;
  padding: 80px 20px;
}
.cta-title {
  color: #fff;
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.cta-desc {
  color: rgba(255, 255, 255, 0.75);
  font-size: 1.05rem;
  margin-bottom: 36px;
}
.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}
.btn-cta-primary {
  background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
  color: #fff;
  padding: 16px 40px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 1rem;
  box-shadow: 0 8px 30px rgba(255,107,53,0.35);
  transition: all var(--transition-base);
}
.btn-cta-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(255,107,53,0.4);
  color: #fff;
}
.btn-cta-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.35);
  padding: 16px 40px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 1rem;
  backdrop-filter: blur(8px);
  transition: all var(--transition-base);
}
.btn-cta-outline:hover {
  background: #fff;
  color: var(--color-primary);
  border-color: #fff;
  transform: translateY(-2px);
}

/* =============================================
   12. Footer
   ============================================= */
.footer {
  background: var(--color-primary-dark);
  color: rgba(255,255,255,0.85);
}

.footer-main {
  padding: var(--space-16) 0 var(--space-12);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-10);
}

/* 主页 footer 去掉「关注我们」列后调整为 4 列 */
.footer-grid--home {
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
}

.footer-brand {
  display: flex;
  flex-direction: column;
}
.footer-logo .logo-text {
  font-size: 1.4rem;
  font-weight: 900;
  color: #fff;
  letter-spacing: 0.04em;
}
.footer-desc {
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
  margin-top: var(--space-4);
  color: rgba(255, 255, 255, 0.85);
}

.footer-links h4,
.footer-contact h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: rgba(255,255,255,0.9);
  margin-bottom: var(--space-5);
}
.footer-links ul { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-links a {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.85);
  transition: all var(--transition-base);
}
.footer-links a:hover {
  color: var(--color-secondary);
  padding-left: var(--space-2);
}

.footer-contact p {
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-3);
  color: rgba(255, 255, 255, 0.7);
}
.footer-contact .phone-number {
  display: inline-block;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-secondary);
  margin-bottom: var(--space-3);
}
.footer-contact .phone-number:hover { color: var(--color-secondary-light); }
.footer-address { color: rgba(255,255,255,0.55) !important; }

.footer-contact-info { margin-top: var(--space-4); }
.footer-contact-info p {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: var(--space-2);
  line-height: var(--line-height-relaxed);
}
.footer-contact-info a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-base);
}
.footer-contact-info a {
  color: rgba(255,255,255,0.7);
  transition: color var(--transition-base);
}
.footer-contact-info a:hover { color: var(--color-secondary-light); }

.footer-phone {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.phone-label {
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.7);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* 底部主电话大号强调 */
.footer-contact .phone-number {
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: 0.02em;
  transition: color 0.2s ease;
}

.footer-contact .phone-number:hover {
  color: var(--color-secondary-light);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: var(--space-6) 0;
}
.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-copyright p,
.footer-icp p {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.85);
}
.footer-icp a {
  color: rgba(255, 255, 255, 0.85);
  transition: color var(--transition-base);
}
.footer-icp a:hover { color: rgba(255,255,255,1); }

/* =============================================
   12.5 Footer WeChat QR Code
   ============================================= */
.footer-wechat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.footer-wechat img {
  border-radius: 8px;
  border: 2px solid rgba(255,255,255,0.15);
  transition: border-color 0.3s ease;
  max-width: 150px;
  height: auto;
}

.footer-wechat img:hover {
  border-color: var(--color-secondary-light);
}

.wechat-note {
  font-size: 12px;
  color: rgba(255,255,255,0.85);
  line-height: 1.4;
  text-align: center;
}

/* 移动端调整 */
@media (max-width: 767px) {
  .footer-wechat img {
    max-width: 120px;
  }
}

/* =============================================
   13. Back to Top
   ============================================= */
.back-to-top {
  position: fixed;
  bottom: var(--space-8);
  right: var(--space-8);
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-base);
}
.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.back-to-top a {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-base);
}
.back-to-top a:hover {
  background: var(--color-secondary);
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(255,107,53,0.35);
}
.back-to-top .arrow {
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
}
.back-to-top .text {
  font-size: 10px;
  margin-top: 2px;
}

/* =============================================
   14. Mobile Nav
   ============================================= */
.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(12,24,41,0.6);
  z-index: 1999;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  backdrop-filter: blur(4px);
}
.mobile-overlay.active {
  opacity: 1;
  visibility: visible;
}

.mobile-nav {
  position: fixed;
  top: 0;
  right: -300px;
  width: 300px;
  height: 100vh;
  background: var(--color-primary);
  z-index: 2000;
  transition: right var(--transition-slow);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-xl);
}
.mobile-nav.active { right: 0; }

.mobile-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.mobile-header .logo-text {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: #fff;
}
.mobile-close {
  font-size: 28px;
  color: rgba(255,255,255,0.85);
  cursor: pointer;
  transition: color var(--transition-base);
  line-height: 1;
}
.mobile-close:hover { color: #fff; }

.mobile-menu {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4) 0;
}
.mobile-menu ul { display: flex; flex-direction: column; }
.mobile-menu li a {
  display: block;
  padding: var(--space-3) var(--space-6);
  color: rgba(255,255,255,0.9);
  font-size: var(--font-size-base);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  transition: all var(--transition-base);
}
.mobile-menu li.mobile-sub a {
  padding-left: var(--space-10);
  font-size: 0.92rem;
  color: rgba(255,255,255,0.75);
}
.mobile-menu li a:hover {
  color: var(--color-secondary);
  background: rgba(255,255,255,0.03);
  padding-left: var(--space-8);
}

.mobile-contact {
  padding: var(--space-5) var(--space-6);
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.mobile-contact .btn-call {
  justify-content: center;
  width: 100%;
}
.btn-quote-mobile {
  display: block;
  text-align: center;
  padding: var(--space-3) var(--space-5);
  border: 1.5px solid rgba(255,255,255,0.2);
  border-radius: var(--radius-full);
  color: rgba(255,255,255,0.8);
  font-size: var(--font-size-sm);
  font-weight: 600;
  transition: all var(--transition-base);
}
.btn-quote-mobile:hover {
  border-color: var(--color-secondary);
  color: var(--color-secondary);
}

/* =============================================
   15. Consult Panel (from script.js)
   ============================================= */
.consult-trigger {
  position: fixed;
  bottom: var(--space-8);
  left: var(--space-8);
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 899;
  box-shadow: 0 6px 24px rgba(255,107,53,0.35);
  transition: all var(--transition-base);
}
.consult-trigger:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 32px rgba(255,107,53,0.45);
}

.consult-panel {
  position: fixed;
  bottom: calc(var(--space-8) + 64px);
  left: var(--space-8);
  width: 280px;
  background: #fff;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  z-index: 899;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px) scale(0.95);
  transition: all var(--transition-base);
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.04);
}
.consult-panel.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}
.consult-panel.hint {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
  animation: consult-hint 0.6s ease;
}
.consult-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
  background: var(--color-primary);
  color: #fff;
  font-weight: 600;
}
.consult-close {
  font-size: 20px;
  color: rgba(255,255,255,0.6);
  cursor: pointer;
  transition: color var(--transition-base);
}
.consult-close:hover { color: #fff; }
.consult-body {
  padding: var(--space-8) var(--space-6);
  text-align: center;
}
.consult-body p { font-size: var(--font-size-sm); color: var(--color-text-light); margin-bottom: var(--space-4); }
.consult-body .phone-number {
  display: block;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: var(--space-6);
}
.consult-body .btn-call {
  width: 100%;
  justify-content: center;
  background: var(--color-secondary);
  padding: var(--space-3) var(--space-6);
}
.consult-body .btn-call:hover { background: var(--color-secondary-dark); }

/* =============================================
   16. Scroll Animations
   ============================================= */
.advantage-card,
.service-card,
.route-card,
.case-card,
.stat-card {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), 
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1), 
              box-shadow var(--transition-slow), 
              border-color var(--transition-slow);
}
.advantage-card.visible,
.service-card.visible,
.route-card.visible,
.case-card.visible,
.stat-card.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger delay */
.advantage-card:nth-child(1), .service-card:nth-child(1), .route-card:nth-child(1), .case-card:nth-child(1), .stat-card:nth-child(1) { transition-delay: 0s; }
.advantage-card:nth-child(2), .service-card:nth-child(2), .route-card:nth-child(2), .case-card:nth-child(2), .stat-card:nth-child(2) { transition-delay: 0.1s; }
.advantage-card:nth-child(3), .service-card:nth-child(3), .route-card:nth-child(3), .case-card:nth-child(3), .stat-card:nth-child(3) { transition-delay: 0.2s; }
.advantage-card:nth-child(4), .route-card:nth-child(4), .stat-card:nth-child(4) { transition-delay: 0.3s; }
.route-card:nth-child(5) { transition-delay: 0.3s; }
.route-card:nth-child(6) { transition-delay: 0.35s; }
.route-card:nth-child(7) { transition-delay: 0.4s; }
.route-card:nth-child(8) { transition-delay: 0.45s; }

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}
@keyframes consult-hint {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-5px) scale(1.02); }
}

/* =============================================
   17. Responsive: 992px (Tablet)
   ============================================= */
@media (max-width: 992px) {
  :root {
    --section-padding: 80px 0;
    --header-height: 64px;
  }

  .top-bar { display: none; }

  .main-nav { display: none; }
  .menu-toggle { display: flex; }

  .hero-section h1, .hero-section h2 { font-size: var(--font-size-4xl); }
  .hero-desc { font-size: var(--font-size-base); }
  .hero-nav { padding: 0 var(--space-2); }
  .hero-nav-btn { width: 42px; height: 42px; font-size: 22px; }

  .advantages-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .routes-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(3, 1fr); gap: var(--space-3); }
  .stat-card { padding: var(--space-3) var(--space-2); }
  .cases-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-8); }

  .stat-card:not(:last-child)::after { display: none; }
  .stat-number { font-size: 1.3rem; }
  .stat-icon { width: 32px; height: 32px; }
  .stat-icon svg { width: 32px; height: 32px; }
  .stat-label { font-size: 0.7rem; }
  .stat-desc { font-size: 0.6rem; }
  .section-title { font-size: var(--font-size-3xl); }
}

/* =============================================
   18. Responsive: 768px (Mobile Landscape)
   ============================================= */
@media (max-width: 768px) {
  :root {
    --section-padding: 40px 0;
  }

  .section-title { font-size: var(--font-size-2xl); }
  .section-header { margin-bottom: var(--space-6); }

  .hero-section { min-height: 550px; }
  .hero-section h1, .hero-section h2 { font-size: var(--font-size-3xl); }
  .hero-badge { font-size: var(--font-size-xs); }
  .hero-buttons { flex-direction: column; }
  .hero-buttons .btn { width: 100%; max-width: 280px; text-align: center; min-height: 44px; }
  .hero-search { padding: var(--space-3) 0; }
  .hot-routes { font-size: 0.7rem; margin-bottom: var(--space-2); }
  .search-form { flex-direction: column; border-radius: var(--radius-xl); }
  .search-input-group { flex-direction: column; padding: var(--space-2); }
  .search-divider { padding: var(--space-1) 0; }
  .search-btn { border-radius: 0 0 var(--radius-xl) var(--radius-xl); padding: var(--space-3); min-height: 44px; }
  .hero-dots { bottom: auto; top: var(--space-4); left: 50%; transform: translateX(-50%); }

  .services-grid { grid-template-columns: 1fr; }
  .cases-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(3, 1fr); gap: var(--space-3); }
  .stat-card { padding: var(--space-3) var(--space-2); }
  .stat-number { font-size: 1.3rem; }
  .stat-icon { width: 32px; height: 32px; }
  .stat-icon svg { width: 32px; height: 32px; }
  .stat-label { font-size: 0.7rem; }
  .stat-desc { font-size: 0.6rem; }

  .footer-grid { grid-template-columns: 1fr; }

  /* 底部电话号移动端也加大 */
  .footer-contact .phone-number {
    font-size: var(--font-size-lg);
  }

  /* section-subtitle 装饰线移动端缩短 */
  .section-subtitle::before,
  .section-subtitle::after {
    width: 16px;
    opacity: 0.3;
  }
  .footer-bottom .container { flex-direction: column; gap: var(--space-3); text-align: center; }
}

/* =============================================
   18.5 移动端专项优化 (2026-07-07)
   ============================================= */
@media (max-width: 768px) {
  /* 统计区：2列大卡片，数字/标签放大 */
  .stats-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 12px !important;
  }
  .stat-card {
    padding: 20px 12px !important;
  }
  .stat-number {
    font-size: 1.6rem !important;
  }
  .stat-icon {
    width: 32px !important;
    height: 32px !important;
  }
  .stat-icon svg {
    width: 32px !important;
    height: 32px !important;
  }
  .stat-label {
    font-size: 0.85rem !important;
    white-space: normal !important;
  }
  .stat-desc {
    font-size: 0.7rem !important;
    white-space: normal !important;
  }

  /* Hero：隐藏搜索框，自适应高度 */
  .hero-search {
    display: none !important;
  }
  .hero-section {
    min-height: auto !important;
    max-height: none !important;
    height: auto !important;
  }
  .hero-content {
    padding: 64px 0 !important;
  }

  /* 浮动栏：隐藏左下咨询按钮，只保留右下回顶 */
  .consult-trigger {
    display: none !important;
  }
  .consult-panel {
    display: none !important;
  }
  /* 浮动栏容器：改为右下角固定（覆盖 floating-contact.css 的 bottom:80px） */
  .floating-contact {
    right: 16px !important;
    bottom: 16px !important;
    top: auto !important;
    transform: none !important;
  }
  .floating-contact .fc-btn--top {
    width: 46px !important;
    height: 46px !important;
  }
}

/* =============================================
   19. Responsive: 480px (Mobile Portrait)
   ============================================= */
@media (max-width: 480px) {
  :root {
    --section-padding: 35px 0;
  }

  .hero-section { min-height: 480px; max-height: none; height: auto; }
  .hero-section h1, .hero-section h2 { font-size: var(--font-size-2xl); }
  .hero-content { padding: var(--space-12) 0; }
  .hero-desc { font-size: var(--font-size-sm); }

  .advantages-grid { grid-template-columns: 1fr; }
  .routes-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-2); }
  .stat-card { padding: var(--space-3) var(--space-2); }
  .stat-number { font-size: 1.2rem; }
  .stat-unit { font-size: 0.8rem; }
  .stat-icon { width: 28px; height: 28px; }
  .stat-icon svg { width: 28px; height: 28px; }

  .floating-contact .fc-btn--top { bottom: var(--space-5); right: var(--space-5) !important; }
  .floating-contact .fc-btn--top { width: 42px !important; height: 42px !important; }
}

/* =============================================
   20. Accessibility & Motion Preferences
   ============================================= */
/* =============================================
   21. 移动端字体底线保护 (2026-07-07)
   ============================================= */
@media (max-width: 768px) {
  body {
    font-size: var(--font-size-sm) !important;
    line-height: 1.7 !important;
  }
  p, .section-desc, .case-content p, .service-content p {
    font-size: var(--font-size-sm) !important;
    line-height: 1.75 !important;
  }
  .stat-label {
    font-size: 0.8rem !important;   /* 比 0.75 稍大一点 */
  }
  .stat-desc {
    font-size: 0.68rem !important;
  }
  /* 路线卡片：减少垂直占用 */
  .route-card {
    padding: 24px 16px 20px !important;
  }
  .route-label {
    font-size: 0.9rem !important;
  }
  /* 路线网格：2列更合理 */
  .routes-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 12px !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .advantage-card, .service-card, .route-card, .case-card, .stat-card {
    opacity: 1;
    transform: none;
  }
}

/* ================================================
   视觉增强 - 2026-06-15 全面优化（已去重）
   ================================================ */

/* --- Hero横幅区增强 --- */
.hero-content .hero-badge {
  background: rgba(255, 107, 53, 0.15);
  color: var(--color-secondary);
  border: 1px solid rgba(255, 107, 53, 0.3);
  backdrop-filter: blur(8px);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 5px 14px;
  border-radius: 20px;
  display: inline-block;
  margin-bottom: 16px;
}
.hero-content h1, .hero-content h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  color: #fff;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.hero-desc {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.7;
  margin-bottom: 28px;
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.3);
}
.btn.btn-primary {
  background: var(--color-secondary);
  color: #fff;
  border: none;
  padding: 12px 28px;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: 8px;
  transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
  box-shadow: 0 4px 16px rgba(255, 107, 53, 0.3);
  text-decoration: none;
  display: inline-block;
}
.btn.btn-primary:hover {
  background: var(--color-secondary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.4);
  color: #fff;
}
.btn.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.5);
  padding: 10px 26px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 8px;
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.2s ease;
  text-decoration: none;
  display: inline-block;
}
.btn.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
  transform: translateY(-2px);
  color: #fff;
}
.hero-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* --- CTA区域增强 --- */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-mid) 50%, var(--color-primary-dark) 100%);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.cta-title {
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
  text-align: center;
  letter-spacing: -0.01em;
}
.cta-desc {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.9);
  text-align: center;
  margin-bottom: 32px;
  line-height: 1.6;
}
.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.btn-cta-primary {
  background: var(--color-secondary);
  color: #fff;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 700;
  border-radius: 10px;
  border: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
  box-shadow: 0 6px 24px rgba(255, 107, 53, 0.35);
  text-decoration: none;
}
.btn-cta-primary:hover {
  background: var(--color-secondary-dark);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(255, 107, 53, 0.45);
  color: #fff;
}
.btn-cta-outline {
  background: transparent;
  color: rgba(255, 255, 255, 0.95);
  border: 2px solid rgba(255, 255, 255, 0.6);
  padding: 12px 30px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background 0.25s ease, border-color 0.25s ease;
  text-decoration: none;
}
.btn-cta-outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.8);
  color: #fff;
}

/* --- 页面横幅增强 --- */
.page-banner {
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background-size: cover !important;
  background-position: center !important;
  background-repeat: no-repeat !important;
}

/* --- 页脚信任标签 --- */
.footer-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}
.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  background: rgba(255, 107, 53, 0.08);
  border: 1px solid rgba(255, 107, 53, 0.2);
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-secondary);
  white-space: nowrap;
}
.footer-brand .footer-desc {
  font-size: 0.88rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 4px;
}
.footer-contact h4 {
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.footer-contact p, .footer-contact a {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.8;
}
.phone-number {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-secondary) !important;
  display: block;
  margin-bottom: 8px;
}

/* =============================================
   FAQ Section Styles
   ============================================= */
.faq-section {
  padding: var(--section-padding);
  background: var(--color-bg-alt);
}

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

/* 手风琴卡片 */
.faq-item {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--color-primary);
  overflow: hidden;
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}

.faq-item:hover {
  box-shadow: var(--shadow-lg);
}

.faq-item.is-active {
  border-left-color: var(--color-secondary);
}

/* 问题行（可点击按钮） */
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-6);
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  transition: background 0.2s ease;
}

.faq-question:hover {
  background: rgba(12, 24, 41, 0.03);
}

.faq-question:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: -2px;
  border-radius: var(--radius-md);
}

.faq-q-text {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-heading);
  line-height: 1.4;
  flex: 1;
  padding-left: var(--space-5);
  position: relative;
}

.faq-q-text::before {
  content: 'Q';
  position: absolute;
  left: 0;
  top: 0;
  font-size: var(--font-size-base);
  font-weight: 900;
  color: var(--color-primary);
  line-height: inherit;
}

.faq-item.is-active .faq-q-text::before {
  color: var(--color-secondary);
}

/* 展开图标 */
.faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-bg-alt);
  transition: background 0.25s ease, transform 0.25s ease;
}

.faq-icon svg {
  width: 14px;
  height: 14px;
  stroke: var(--color-primary);
  transition: stroke 0.25s ease;
}

.faq-item.is-active .faq-icon {
  background: var(--color-secondary);
  transform: rotate(45deg);
}

.faq-item.is-active .faq-icon svg {
  stroke: #fff;
}

/* 答案区（折叠状态） */
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-answer p {
  font-size: var(--font-size-base);
  color: var(--color-text);
  line-height: 1.8;
  padding: 0 var(--space-6) var(--space-6);
  margin: 0;
  border-top: 1px solid var(--color-border-light);
  padding-top: var(--space-4);
}

.faq-answer p::before {
  content: 'A ';
  color: var(--color-secondary);
  font-weight: 700;
}

/* 移动端 */
@media (max-width: 768px) {
  .faq-grid {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .faq-question {
    padding: var(--space-4);
  }

  .faq-q-text {
    font-size: var(--font-size-base);
    padding-left: var(--space-5);
  }

  .faq-answer p {
    padding: var(--space-4) var(--space-4) var(--space-4);
    font-size: var(--font-size-sm);
  }
}

/* =============================================
   Comparison Table Styles
   ============================================= */
.route-comparison {
  padding: var(--section-padding);
  background: var(--color-white);
}

.comparison-table {
  overflow-x: auto;
  margin-top: var(--space-8);
}

.comparison-table table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.comparison-table th {
  background: var(--color-primary);
  color: #fff;
  padding: 16px 20px;
  font-weight: 700;
  font-size: 0.95rem;
  text-align: center;
}

.comparison-table td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--color-border-light);
  font-size: 0.9rem;
  color: var(--color-text);
  text-align: center;
}

.comparison-table td:first-child {
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-bg);
}

.comparison-table tr:hover td {
  background: rgba(255, 107, 53, 0.03);
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

@media (max-width: 768px) {
  .comparison-table table {
    font-size: 0.8rem;
  }
  .comparison-table th,
  .comparison-table td {
    padding: 10px 12px;
  }
}
/* ============================================================
   CTA区域微信咨询卡片
   ============================================================ */
.cta-wechat-row {
    margin-top: 28px;
    display: flex;
    justify-content: center;
}
.cta-wechat-card {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    background: rgba(255,255,255,0.12);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: 12px;
    padding: 14px 24px 14px 16px;
}
.cta-wechat-card img {
    width: 72px;
    height: 72px;
    border-radius: 8px;
    object-fit: cover;
    border: 2px solid rgba(255,255,255,0.4);
    flex-shrink: 0;
}
.cta-wechat-info {
    text-align: left;
}
.cta-wechat-title {
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    margin: 0 0 6px 0;
}
.cta-wechat-sub {
    font-size: 13px;
    color: rgba(255,255,255,0.75);
    margin: 0;
    line-height: 1.6;
}

@media (max-width: 480px) {
    .cta-wechat-card {
        flex-direction: column;
        text-align: center;
        padding: 16px;
    }
    .cta-wechat-info {
        text-align: center;
    }
}

/* =============================================
   骨架屏样式
   ============================================= */
.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-md);
}

.skeleton-image {
    aspect-ratio: 16/9;
    width: 100%;
}

.skeleton-text {
    height: 16px;
    width: 100%;
    margin-bottom: 8px;
}

.skeleton-text.short {
    width: 60%;
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* =============================================
   加载状态样式
   ============================================= */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 107, 53, 0.3);
    border-radius: 50%;
    border-top-color: var(--color-secondary);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.loading-overlay.active {
    opacity: 1;
    visibility: visible;
}

.loading-content {
    text-align: center;
}

.loading-text {
    margin-top: 12px;
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

/* =============================================
   微交互效果 - 卡片3D倾斜
   ============================================= */
.card-3d {
    perspective: 1000px;
    transform-style: preserve-3d;
}

.card-3d:hover {
    transform: translateY(-8px) rotateX(2deg) rotateY(-2deg);
    box-shadow: 0 25px 50px rgba(12, 24, 41, 0.15);
}

/* 服务卡片3D效果 */
.service-card {
    transform-style: preserve-3d;
    transform-origin: center center;
    will-change: transform;
}

.service-card:hover {
    transform: translateY(-8px) rotateX(1deg) rotateY(-1deg);
}

/* 案例卡片3D效果 */
.case-card {
    transform-style: preserve-3d;
    transform-origin: center center;
    will-change: transform;
}

.case-card:hover {
    transform: translateY(-8px) rotateX(1deg) rotateY(-1deg);
}

/* 路线卡片3D效果 */
.route-card {
    transform-style: preserve-3d;
    transform-origin: center center;
    will-change: transform;
}

.route-card:hover {
    transform: translateY(-6px) rotateX(1deg) rotateY(-1deg);
}

/* 优势卡片3D效果 */
.advantage-card {
    transform-style: preserve-3d;
    transform-origin: center center;
    will-change: transform;
}

.advantage-card:hover {
    transform: translateY(-6px) rotateX(1deg) rotateY(-1deg);
}

/* =============================================
   微交互效果 - 按钮涟漪效果
   ============================================= */
.btn-ripple {
    position: relative;
    overflow: hidden;
}

.btn-ripple::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    background-image: radial-gradient(circle, rgba(255, 255, 255, 0.3) 10%, transparent 10%);
    background-repeat: no-repeat;
    background-position: 50%;
    transform: scale(10, 10);
    opacity: 0;
    transition: transform 0.5s, opacity 0.5s;
}

.btn-ripple:active::after {
    transform: scale(0, 0);
    opacity: 0.3;
    transition: 0s;
}

/* =============================================
   微交互效果 - 图片缩放增强
   ============================================= */
.img-zoom {
    overflow: hidden;
}

.img-zoom img {
    transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.img-zoom:hover img {
    transform: scale(1.08);
}

/* =============================================
   微交互效果 - 文字高亮效果
   ============================================= */
.text-highlight {
    position: relative;
    display: inline-block;
}

.text-highlight::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--color-secondary);
    transition: width 0.3s ease;
}

.text-highlight:hover::after {
    width: 100%;
}

/* =============================================
   微交互效果 - 浮动标签
   ============================================= */
.float-label {
    position: relative;
}

.float-label label {
    position: absolute;
    top: 50%;
    left: 16px;
    transform: translateY(-50%);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    transition: all 0.3s ease;
    pointer-events: none;
    background: var(--color-white);
    padding: 0 4px;
}

.float-label input:focus + label,
.float-label input:not(:placeholder-shown) + label {
    top: 0;
    font-size: var(--font-size-xs);
    color: var(--color-secondary);
}

/* =============================================
   微交互效果 - 进度条动画
   ============================================= */
.progress-bar {
    height: 4px;
    background: var(--color-border);
    border-radius: 2px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-secondary), var(--color-secondary-light));
    border-radius: 2px;
    width: 0;
    transition: width 1s ease;
}

.progress-bar-fill.animated {
    width: var(--progress, 0%);
}

/* =============================================
   微交互效果 - 打字机效果
   ============================================= */
.typewriter {
    overflow: hidden;
    border-right: 2px solid var(--color-secondary);
    white-space: nowrap;
    animation: typing 3s steps(40, end), blink-caret 0.75s step-end infinite;
}

@keyframes typing {
    from { width: 0 }
    to { width: 100% }
}

@keyframes blink-caret {
    from, to { border-color: transparent }
    50% { border-color: var(--color-secondary); }
}

/* =============================================
   微交互效果 - 涟漪按钮增强
   ============================================= */
.btn-primary,
.btn-outline,
.btn-more,
.btn-cta-primary,
.btn-cta-outline {
    position: relative;
    overflow: hidden;
}

.btn-primary::before,
.btn-outline::before,
.btn-more::before,
.btn-cta-primary::before,
.btn-cta-outline::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.btn-primary:hover::before,
.btn-outline:hover::before,
.btn-more:hover::before,
.btn-cta-primary:hover::before,
.btn-cta-outline:hover::before {
    width: 300px;
    height: 300px;
}

/* =============================================
   微交互效果 - 卡片光晕效果
   ============================================= */
.card-glow {
    position: relative;
}

.card-glow::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: inherit;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.card-glow:hover::before {
    opacity: 1;
}

/* =============================================
   微交互效果 - 数字滚动增强
   ============================================= */
.stat-number {
    font-variant-numeric: tabular-nums;
    transition: transform 0.3s ease;
}

.stat-card:hover .stat-number {
    transform: scale(1.1);
}

/* =============================================
   微交互效果 - 图标旋转
   ============================================= */
.icon-rotate {
    transition: transform 0.3s ease;
}

.icon-rotate:hover {
    transform: rotate(360deg);
}

/* =============================================
   微交互效果 - 边框动画
   ============================================= */
.border-animate {
    position: relative;
}

.border-animate::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-secondary);
    transition: width 0.3s ease;
}

.border-animate:hover::after {
    width: 100%;
}