/* ============================================
   喵盒智装官网 - 栖息地风格 + 喵盒绿
   版本: v3.0 - 全面重构
   ============================================ */

/* --- CSS变量（浅色系 + 喵盒绿） --- */
:root {
  /* 主色调 - 浅色系背景 */
  --color-bg: #f8faf9;
  --color-bg-dark: #ffffff;
  --color-bg-light: #f0f5f2;
  --color-bg-lighter: #e8f0ec;
  --color-bg-card: rgba(255, 255, 255, 0.9);
  --color-bg-white: #ffffff;
  
  /* 强调色 - 喵盒绿 */
  --color-accent: #0d3b2e;
  --color-accent-dark: #081f17;
  --color-accent-glow: rgba(13, 59, 46, 0.3);
  --color-accent-light: rgba(13, 59, 46, 0.08);
  
  /* 薄荷绿辅助色 */
  --color-mint: #64dca0;
  --color-mint-dark: #4ac88a;
  
  /* 文字色 */
  --color-text: #0d3b2e;
  --color-text-muted: rgba(13, 59, 46, 0.6);
  --color-text-light: rgba(13, 59, 46, 0.8);
  --color-text-dark: #081f17;
  
  /* 边框色 */
  --color-border: rgba(13, 59, 46, 0.15);
  --color-border-light: rgba(13, 59, 46, 0.08);
  
  /* 预加载 */
  --color-preloader-bg: #081f17;
  --color-preloader-panel: #0d3b2e;
  
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  --transition-fast: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-slow: 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- 预加载动画 --- */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: var(--color-bg);
  overflow: hidden;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

.preloader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.preloader.hidden * {
  opacity: 0 !important;
  transition: opacity 0.3s ease !important;
}

.preloader-belts {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  z-index: 1;
}

.preloader-belt {
  flex: 1;
  background: var(--color-preloader-panel);
  transform: scaleY(0);
  transform-origin: center;
  transition: transform 0.8s var(--ease-out-expo);
  margin-bottom: -1px;
}

.preloader-belt:last-child {
  margin-bottom: 0;
}

.preloader.active .preloader-belt {
  transform: scaleY(1);
}

.preloader.active .preloader-belt:nth-child(1) { transition-delay: 0.05s; }
.preloader.active .preloader-belt:nth-child(2) { transition-delay: 0.1s; }
.preloader.active .preloader-belt:nth-child(3) { transition-delay: 0.15s; }
.preloader.active .preloader-belt:nth-child(4) { transition-delay: 0.2s; }
.preloader.active .preloader-belt:nth-child(5) { transition-delay: 0.25s; }
.preloader.active .preloader-belt:nth-child(6) { transition-delay: 0.3s; }
.preloader.active .preloader-belt:nth-child(7) { transition-delay: 0.35s; }
.preloader.active .preloader-belt:nth-child(8) { transition-delay: 0.4s; }
.preloader.active .preloader-belt:nth-child(9) { transition-delay: 0.45s; }
.preloader.active .preloader-belt:nth-child(10) { transition-delay: 0.5s; }

.preloader.loading .preloader-belt {
  transform: scaleY(0);
}

.preloader.loading .preloader-belt:nth-child(1) { transition-delay: 0.05s; }
.preloader.loading .preloader-belt:nth-child(2) { transition-delay: 0.1s; }
.preloader.loading .preloader-belt:nth-child(3) { transition-delay: 0.15s; }
.preloader.loading .preloader-belt:nth-child(4) { transition-delay: 0.2s; }
.preloader.loading .preloader-belt:nth-child(5) { transition-delay: 0.25s; }
.preloader.loading .preloader-belt:nth-child(6) { transition-delay: 0.3s; }
.preloader.loading .preloader-belt:nth-child(7) { transition-delay: 0.35s; }
.preloader.loading .preloader-belt:nth-child(8) { transition-delay: 0.4s; }
.preloader.loading .preloader-belt:nth-child(9) { transition-delay: 0.45s; }
.preloader.loading .preloader-belt:nth-child(10) { transition-delay: 0.5s; }

.preloader-center {
  position: absolute;
  inset: 0;
  z-index: 10;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  perspective: 800px;
}

.preloader-logo-wrap {
  position: relative;
  width: clamp(10rem, 22vw, 17.5rem);
  height: clamp(10.25rem, 22.3vw, 17.75rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  margin-bottom: 3rem;
}

.preloader-logo-box {
  position: absolute;
  inset: 0;
  background: var(--color-preloader-panel);
  border: 1.5px solid var(--color-border);
  border-radius: 4px;
  opacity: 0;
  transform: scale(0.8);
  animation: logoBoxIn 0.8s var(--ease-out-expo) 0.3s forwards;
}

@keyframes logoBoxIn {
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.preloader-logo-text {
  position: relative;
  z-index: 2;
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
  opacity: 0;
  transform: translateY(20px);
  animation: logoTextIn 0.8s var(--ease-out-expo) 0.5s forwards;
}

@keyframes logoTextIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.preloader-logo-sub {
  position: relative;
  z-index: 2;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-top: 0.5rem;
  opacity: 0;
  transform: translateY(10px);
  animation: logoTextIn 0.8s var(--ease-out-expo) 0.7s forwards;
}

.preloader-counter {
  display: flex;
  align-items: baseline;
  gap: 2px;
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeIn 0.5s ease 0.8s forwards;
}

.counter-percent {
  font-size: 1.5rem;
  color: var(--color-text-muted);
}

@keyframes fadeIn {
  to { opacity: 1; }
}

.preloader-tagline {
  display: flex;
  gap: 0.1rem;
  flex-wrap: wrap;
  justify-content: center;
}

.tagline-word {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.5s var(--ease-out-expo), transform 0.5s var(--ease-out-expo);
}

.tagline-word.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- 文字逐字符拆分动画 --- */
.split-text .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(40px);
  filter: blur(10px);
  transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo), filter 0.8s var(--ease-out-expo);
  will-change: transform, opacity, filter;
}

.split-text.animated .char {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

/* 滚动时文字视差模糊效果 */
.split-text.parallax .char {
  transition: transform 0.1s linear, filter 0.1s linear;
}

/* --- 按钮字符逐个悬停动画 --- */
.split-btn {
  position: relative;
  overflow: hidden;
}

.split-btn .btn-text {
  display: inline-flex;
  position: relative;
}

.split-btn .btn-char {
  display: inline-block;
  transition: transform 0.3s var(--ease-out-expo);
  will-change: transform;
}

.split-btn:hover .btn-char {
  transform: translateY(-4px);
}

.split-btn:hover .btn-char:nth-child(1) { transition-delay: 0ms; }
.split-btn:hover .btn-char:nth-child(2) { transition-delay: 30ms; }
.split-btn:hover .btn-char:nth-child(3) { transition-delay: 60ms; }
.split-btn:hover .btn-char:nth-child(4) { transition-delay: 90ms; }
.split-btn:hover .btn-char:nth-child(5) { transition-delay: 120ms; }
.split-btn:hover .btn-char:nth-child(6) { transition-delay: 150ms; }
.split-btn:hover .btn-char:nth-child(7) { transition-delay: 180ms; }
.split-btn:hover .btn-char:nth-child(8) { transition-delay: 210ms; }

/* 按钮下划线动画 */
.btn-underline {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  overflow: hidden;
}

.btn-underline::before,
.btn-underline::after {
  content: '';
  position: absolute;
  inset: 0;
  background: currentColor;
  transition: transform 0.4s var(--ease-out-expo);
}

.btn-underline::before {
  transform-origin: right;
  transform: scaleX(1);
}

.btn-underline::after {
  transform-origin: left;
  transform: scaleX(0);
}

.split-btn:hover .btn-underline::before {
  transform: scaleX(0);
}

.split-btn:hover .btn-underline::after {
  transform: scaleX(1);
}

/* --- 平滑滚动 --- */
html.lenis {
  height: auto;
}

.lenis.lenis-smooth {
  scroll-behavior: auto !important;
}

.lenis.lenis-smooth [data-lenis-prevent] {
  overscroll-behavior: contain;
}

.lenis.lenis-stopped {
  overflow: hidden;
}

/* --- pin固定定位 --- */
.pin-container {
  position: relative;
}

.pin-element {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
}

/* --- 基础重置 --- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: auto;
}

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  overflow-x: hidden;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
}

/* --- 滚动进度条 --- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  z-index: 10000;
  transition: transform 0.1s ease;
}

/* --- 鼠标跟随光晕 --- */
.cursor-glow {
  position: fixed;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
  opacity: 0;
  transition: opacity 0.3s ease;
  transform: translate(-50%, -50%);
  mix-blend-mode: screen;
}

.cursor-glow.active {
  opacity: 1;
}

/* --- 导航栏（栖息地风格 + 喵盒绿） --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 64px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition-slow);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 4px 30px rgba(13, 59, 46, 0.1);
}

.navbar-inner {
  max-width: 1600px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 2rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.logo-img {
  height: 40px;
  width: auto;
  object-fit: contain;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.logo:hover .logo-img {
  transform: scale(1.05);
  opacity: 0.9;
}

.logo-mark {
  color: var(--color-accent);
  font-size: 1.5rem;
}

.logo-text {
  color: var(--color-text);
}

.logo-sub {
  color: var(--color-text-muted);
  font-weight: 400;
  font-size: 0.75rem;
  background: var(--color-accent-light);
  padding: 2px 8px;
  border-radius: 10px;
  margin-left: 4px;
}

.logo-img {
  height: 40px;
  width: auto;
  object-fit: contain;
}

/* 导航链接 */
.nav-links {
  display: flex;
  align-items: center;
  gap: 0;
  flex: 1;
  justify-content: center;
}

.nav-group {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-divider {
  width: 1px;
  height: 20px;
  background: var(--color-border-light);
  margin: 0 12px;
}

.nav-link {
  color: var(--color-text-light);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 6px;
  transition: all var(--transition-fast);
  white-space: nowrap;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 60%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  border-radius: 2px;
  transition: transform var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-accent);
  background: var(--color-accent-light);
}

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

.nav-link.active {
  color: var(--color-accent);
  background: var(--color-accent-light);
  font-weight: 600;
}

/* --- 下拉菜单 --- */
.nav-dropdown {
  position: relative;
  display: flex;
  align-items: center;
}

.nav-dropdown-trigger {
  display: flex;
  align-items: center;
  gap: 4px;
}

.dropdown-arrow {
  transition: transform var(--transition-fast);
  opacity: 0.6;
}

.nav-dropdown:hover .dropdown-arrow {
  transform: rotate(180deg);
  opacity: 1;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 260px;
  background: var(--color-bg-white);
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(13, 59, 46, 0.15), 0 2px 8px rgba(13, 59, 46, 0.08);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  z-index: 1000;
  border: 1px solid var(--color-border-light);
}

.nav-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px 16px;
  border-radius: 8px;
  text-decoration: none;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.dropdown-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%) scaleY(0);
  width: 3px;
  height: 60%;
  background: var(--color-accent);
  border-radius: 0 3px 3px 0;
  transition: transform var(--transition-fast);
}

.dropdown-item:hover {
  background: var(--color-accent-light);
  transform: translateX(4px);
}

.dropdown-item:hover::before {
  transform: translateY(-50%) scaleY(1);
}

.dropdown-item-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  transition: color var(--transition-fast);
}

.dropdown-item:hover .dropdown-item-title {
  color: var(--color-accent);
}

.dropdown-item-desc {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-weight: 400;
}

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

/* 右侧操作区 */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn-sound {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-accent-light);
  border: 1px solid var(--color-border);
  color: var(--color-accent);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.btn-sound:hover {
  background: var(--color-accent);
  color: var(--color-bg);
}

.btn-book {
  padding: 0.625rem 1.75rem;
  background: var(--color-accent);
  color: var(--color-bg-dark);
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}

.btn-book:hover {
  background: var(--color-accent-dark);
  box-shadow: 0 4px 20px var(--color-accent-glow);
  transform: translateY(-2px);
}

.btn-menu {
  display: none;
  padding: 0.5rem 1rem;
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-fast);
}

.btn-menu:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.menu-icon {
  font-size: 1.125rem;
}

/* 移动端菜单 */
.mobile-menu {
  display: none;
  position: absolute;
  top: 64px;
  left: 0;
  right: 0;
  background: rgba(8, 31, 23, 0.98);
  backdrop-filter: blur(20px);
  padding: 1rem 2rem 2rem;
  flex-direction: column;
  gap: 1rem;
  border-bottom: 1px solid var(--color-border);
  max-height: 70vh;
  overflow-y: auto;
}

.mobile-menu.open {
  display: flex;
}

.mobile-nav-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-nav-title {
  font-size: 0.6875rem;
  color: var(--color-accent);
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 4px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav-link {
  color: var(--color-text-light);
  text-decoration: none;
  font-size: 0.9375rem;
  padding: 10px 14px;
  border-radius: 6px;
  transition: all var(--transition-fast);
}

.mobile-nav-link:hover {
  color: var(--color-accent);
  background: var(--color-accent-light);
}

/* --- Hero区（栖息地风格 - 居中布局） --- */
.hero {
  min-height: 100vh;
  background: var(--color-bg);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 6rem 2rem 4rem;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 1;
}

#heroCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse at center, transparent 0%, var(--color-bg) 70%),
    linear-gradient(180deg, rgba(8, 31, 23, 0.3) 0%, transparent 50%, var(--color-bg) 100%);
}

/* 3D抽象图形 - 调整颜色为喵盒绿 */
.hero-3d {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 700px;
  z-index: 2;
  perspective: 1000px;
  opacity: 0.6;
}

.shape-1,
.shape-2,
.shape-3 {
  position: absolute;
  background: linear-gradient(135deg, var(--color-bg-light), var(--color-bg-dark));
  border: 1px solid var(--color-border);
  box-shadow: 
    inset 0 0 60px var(--color-accent-light),
    0 0 100px var(--color-accent-light);
}

.shape-1 {
  width: 200px;
  height: 350px;
  top: 10%;
  left: 20%;
  transform: rotateX(15deg) rotateY(-20deg) rotateZ(5deg);
  animation: shapeFloat1 8s ease-in-out infinite;
}

.shape-1::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  box-shadow: 0 0 20px var(--color-accent-glow);
}

.shape-2 {
  width: 180px;
  height: 300px;
  top: 20%;
  right: 15%;
  transform: rotateX(-10deg) rotateY(25deg) rotateZ(-5deg);
  animation: shapeFloat2 10s ease-in-out infinite;
}

.shape-2::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--color-accent));
  box-shadow: 0 0 15px var(--color-accent-glow);
}

.shape-3 {
  width: 150px;
  height: 250px;
  bottom: 15%;
  left: 35%;
  transform: rotateX(20deg) rotateY(15deg) rotateZ(10deg);
  animation: shapeFloat3 12s ease-in-out infinite;
}

.shape-3::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), transparent, var(--color-accent));
  box-shadow: 0 0 15px var(--color-accent-glow);
}

.shape-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 70%);
  animation: glowPulse 4s ease-in-out infinite;
}

@keyframes shapeFloat1 {
  0% { transform: rotateX(15deg) rotateY(0deg) rotateZ(5deg) translateY(0); }
  50% { transform: rotateX(20deg) rotateY(180deg) rotateZ(8deg) translateY(-20px); }
  100% { transform: rotateX(15deg) rotateY(360deg) rotateZ(5deg) translateY(0); }
}

@keyframes shapeFloat2 {
  0% { transform: rotateX(0deg) rotateY(25deg) rotateZ(-5deg) translateY(0); }
  50% { transform: rotateX(180deg) rotateY(30deg) rotateZ(-8deg) translateY(25px); }
  100% { transform: rotateX(360deg) rotateY(25deg) rotateZ(-5deg) translateY(0); }
}

@keyframes shapeFloat3 {
  0% { transform: rotateX(20deg) rotateY(15deg) rotateZ(0deg) translateY(0); }
  50% { transform: rotateX(25deg) rotateY(20deg) rotateZ(180deg) translateY(-15px); }
  100% { transform: rotateX(20deg) rotateY(15deg) rotateZ(360deg) translateY(0); }
}

@keyframes glowPulse {
  0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 0.8; transform: translate(-50%, -50%) scale(1.2); }
}

/* Hero内容 - 居中 */
.hero-content {
  position: relative;
  z-index: 10;
  text-align: center;
  max-width: 900px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  background: var(--color-accent-light);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: 0.8125rem;
  color: var(--color-accent);
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeInUp 1s ease 0.2s forwards;
}

.tag-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 10px var(--color-accent);
  animation: dotPulse 2s ease-in-out infinite;
}

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

.hero-title {
  font-size: clamp(2.5rem, 8vw, 6rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.title-line {
  display: block;
  opacity: 0;
  transform: translateY(60px);
  animation: titleLineIn 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.title-line:nth-child(1) { animation-delay: 0.3s; }
.title-line:nth-child(2) { animation-delay: 0.45s; }
.title-line:nth-child(3) { animation-delay: 0.6s; }

@keyframes titleLineIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.title-line.highlight {
  background: linear-gradient(135deg, var(--color-accent), #a8f0cc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeInUp 1s ease 0.8s forwards;
}

.hero-price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeInUp 1s ease 0.9s forwards;
}

.price-num {
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
}

.price-unit {
  font-size: 1.25rem;
  color: var(--color-text-muted);
}

.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeInUp 1s ease 1s forwards;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2.5rem;
  background: transparent;
  border: 1px solid var(--color-accent);
  border-radius: 100px;
  color: var(--color-accent);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  transition: all var(--transition-fast);
  text-decoration: none;
  cursor: pointer;
}

.btn-outline:hover {
  background: var(--color-accent);
  color: var(--color-bg-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 40px var(--color-accent-glow);
}

.btn-outline-accent {
  background: #fff;
  border: 2px solid var(--color-accent);
  color: var(--color-accent);
  font-weight: 700;
}

.btn-outline-accent:hover {
  background: var(--color-accent);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 40px var(--color-accent-glow);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2.5rem;
  background: var(--color-accent);
  border: 1px solid var(--color-accent);
  border-radius: 100px;
  color: var(--color-bg-dark);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  transition: all var(--transition-fast);
  text-decoration: none;
  cursor: pointer;
}

.btn-primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 40px var(--color-accent-glow);
}

/* 滚动提示 - 底部居中 */
.scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  z-index: 10;
}

.scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(180deg, var(--color-accent), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0%, 100% { transform: scaleY(1); opacity: 1; }
  50% { transform: scaleY(0.5); opacity: 0.5; }
}

.scroll-text {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.shape-2::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--color-accent));
  box-shadow: 0 0 15px var(--color-accent-glow);
}

.shape-3 {
  width: 250px;
  height: 120px;
  bottom: 15%;
  left: 30%;
  transform: rotateX(20deg) rotateY(-15deg) rotateZ(3deg);
  animation: shapeFloat3 12s ease-in-out infinite;
}

.shape-3::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), transparent, var(--color-accent));
  box-shadow: 0 0 20px var(--color-accent-glow);
}

@keyframes shapeFloat1 {
  0% { transform: rotateX(15deg) rotateY(0deg) rotateZ(5deg) translateY(0); }
  50% { transform: rotateX(20deg) rotateY(180deg) rotateZ(8deg) translateY(-20px); }
  100% { transform: rotateX(15deg) rotateY(360deg) rotateZ(5deg) translateY(0); }
}

@keyframes shapeFloat2 {
  0% { transform: rotateX(0deg) rotateY(25deg) rotateZ(-5deg) translateY(0); }
  50% { transform: rotateX(180deg) rotateY(30deg) rotateZ(-8deg) translateY(25px); }
  100% { transform: rotateX(360deg) rotateY(25deg) rotateZ(-5deg) translateY(0); }
}

@keyframes shapeFloat3 {
  0% { transform: rotateX(20deg) rotateY(15deg) rotateZ(0deg) translateY(0); }
  50% { transform: rotateX(25deg) rotateY(20deg) rotateZ(180deg) translateY(-15px); }
  100% { transform: rotateX(20deg) rotateY(15deg) rotateZ(360deg) translateY(0); }
}

.shape-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 60%);
  filter: blur(60px);
  animation: glowPulse 4s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 0.8; transform: translate(-50%, -50%) scale(1.2); }
}

/* Hero内容 */
.hero-content {
  position: relative;
  z-index: 10;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

.hero-tag {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
  letter-spacing: 0.05em;
}

.tag-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 10px var(--color-accent);
  animation: dotPulse 2s ease-in-out infinite;
}

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

.hero-title {
  font-size: clamp(3rem, 10vw, 8rem);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.04em;
  margin-bottom: 3rem;
}

.title-line {
  display: block;
  opacity: 0;
  transform: translateY(60px);
  animation: titleLineIn 1s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.title-line:nth-child(1) { animation-delay: 0.3s; }
.title-line:nth-child(2) { animation-delay: 0.45s; }
.title-line:nth-child(3) { animation-delay: 0.6s; }

@keyframes titleLineIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.title-line.highlight {
  background: linear-gradient(135deg, var(--color-accent), #FFB088);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-bottom {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 2rem;
  flex-wrap: wrap;
}

.hero-desc {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  max-width: 500px;
  opacity: 0;
  animation: fadeInUp 1s ease 0.9s forwards;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-cta {
  opacity: 0;
  animation: fadeInUp 1s ease 1.1s forwards;
}

.btn-explore {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 2rem;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 100px;
  color: var(--color-text);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  transition: all var(--transition-fast);
}

.btn-explore:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: 0 10px 40px var(--color-accent-glow);
}

.arrow {
  transition: transform var(--transition-fast);
}

.btn-explore:hover .arrow {
  transform: translateX(5px);
}

/* 滚动提示 */
.scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  z-index: 10;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, var(--color-text-muted), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0%, 100% { transform: scaleY(1); opacity: 1; }
  50% { transform: scaleY(0.5); opacity: 0.5; }
}

.scroll-text {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
  text-orientation: mixed;
}

/* --- 通用区块标签 --- */
.section-label {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 3rem;
}

.label-num {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.1em;
}

.label-text {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* --- 关于我们区 --- */
.about {
  background: var(--color-bg);
  padding: 8rem 2rem;
  position: relative;
  overflow: hidden;
}

.about-content {
  max-width: 1400px;
  margin: 0 auto;
}

.about-title {
  font-size: clamp(2rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 4rem;
}

.about-line {
  display: block;
}

.about-line.highlight {
  background: linear-gradient(135deg, var(--color-text), var(--color-text-muted));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.about-card {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1rem;
  padding: 2.5rem;
  transition: all var(--transition-slow);
  position: relative;
  overflow: hidden;
}

.about-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slow);
}

.about-card:hover {
  transform: translateY(-8px);
  background: rgba(255, 107, 53, 0.05);
  border-color: rgba(255, 107, 53, 0.3);
  box-shadow: 0 20px 60px rgba(255, 107, 53, 0.1);
}

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

.card-num {
  font-size: 3rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-accent), transparent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1rem;
  line-height: 1;
}

.about-card h3 {
  font-size: 1.375rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.about-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* --- 大字体滚动区 --- */
.marquee {
  background: var(--color-bg);
  padding: 4rem 0;
  overflow: hidden;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.marquee-track {
  display: flex;
  align-items: center;
  gap: 3rem;
  white-space: nowrap;
  animation: marqueeScroll 30s linear infinite;
}

.marquee-text {
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-text);
}

.marquee-text.accent {
  color: var(--color-accent);
}

.marquee-plus {
  font-size: 2rem;
  color: var(--color-text-muted);
}

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

/* --- 服务区 --- */
.services {
  background: var(--color-bg);
  padding: 8rem 2rem;
}

.services-header {
  max-width: 1400px;
  margin: 0 auto 4rem;
}

.services-title {
  font-size: clamp(2rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.services-title .highlight {
  background: linear-gradient(135deg, var(--color-accent), #FFB088);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.services-grid {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.service-card {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1rem;
  padding: 2.5rem;
  transition: all var(--transition-slow);
  transform-style: preserve-3d;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.service-card:hover {
  background: rgba(255, 107, 53, 0.05);
  border-color: rgba(255, 107, 53, 0.3);
  box-shadow: 0 20px 60px rgba(255, 107, 53, 0.1);
}

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

.card-icon {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.service-card h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1rem;
  position: relative;
  z-index: 1;
}

.service-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 1.5rem;
  position: relative;
  z-index: 1;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  position: relative;
  z-index: 1;
}

.card-tags span {
  padding: 0.375rem 0.875rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* --- 数据统计区 --- */
.stats {
  background: var(--color-bg-light);
  padding: 6rem 2rem;
  color: var(--color-text-dark);
}

.stats-grid {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 3rem;
  text-align: center;
}

.stat-number {
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1;
  margin-bottom: 0.5rem;
  color: var(--color-text-dark);
}

.stat-item p {
  font-size: 1rem;
  color: #555;
}

/* --- 案例展示区 --- */
.cases {
  background: var(--color-bg);
  padding: 8rem 2rem;
}

.cases-header {
  max-width: 1400px;
  margin: 0 auto 4rem;
}

.cases-title {
  font-size: clamp(2rem, 6vw, 4.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.cases-title .highlight {
  background: linear-gradient(135deg, var(--color-accent), #FFB088);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cases-grid {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 1.5rem;
}

.case-card {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 1rem;
  overflow: hidden;
  transition: all var(--transition-slow);
  transform-style: preserve-3d;
}

.case-card:hover {
  transform: translateY(-8px);
  background: rgba(255, 107, 53, 0.05);
  border-color: rgba(255, 107, 53, 0.3);
  box-shadow: 0 20px 60px rgba(255, 107, 53, 0.1);
}

.case-image {
  height: 250px;
  background: linear-gradient(135deg, #1a1a1a, #0a0a0a);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.case-image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 50%, var(--color-accent-glow) 0%, transparent 50%);
  opacity: 0.3;
}

.case-placeholder {
  font-size: 4rem;
  position: relative;
  z-index: 1;
}

.case-info {
  padding: 1.5rem;
}

.case-tag {
  display: inline-block;
  padding: 0.375rem 0.875rem;
  background: rgba(255, 107, 53, 0.1);
  border: 1px solid rgba(255, 107, 53, 0.3);
  border-radius: 100px;
  font-size: 0.75rem;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.case-info h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.case-meta {
  display: flex;
  gap: 1.5rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* --- CTA区 --- */
.cta {
  background: var(--color-bg);
  padding: 8rem 2rem;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 60%);
  filter: blur(80px);
  opacity: 0.3;
}

.cta-content {
  max-width: 1000px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta-title {
  font-size: clamp(2.5rem, 7vw, 6rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 2rem;
}

.cta-title .highlight {
  background: linear-gradient(135deg, var(--color-accent), #FFB088);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cta-desc {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 3rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-primary {
  padding: 1rem 2.5rem;
  background: var(--color-accent);
  color: var(--color-text);
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 40px var(--color-accent-glow);
}

.btn-secondary {
  padding: 1rem 2.5rem;
  background: transparent;
  color: var(--color-text);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 600;
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* --- 页脚 --- */
.footer {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: 5rem 2rem 2rem;
}

.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-brand p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-top: 1.5rem;
  max-width: 400px;
}

.footer-logo {
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
  font-weight: 700;
  font-size: 1.5rem;
}

.footer-logo-img {
  height: 40px;
  width: auto;
  object-fit: contain;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.footer-col h4 {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--color-text);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.footer-col ul li {
  margin-bottom: 0.75rem;
}

.footer-col ul li a {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer-col ul li a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  max-width: 1400px;
  margin: 0 auto;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer-bottom p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* --- 回到顶部 --- */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  z-index: 999;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  transform: translateY(-3px);
}

/* --- 滚动显现动画 --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* --- 响应式 --- */
@media (max-width: 1024px) {
  .hero-3d {
    width: 400px;
    height: 400px;
  }
  
  .shape-1 { width: 150px; height: 250px; }
  .shape-2 { width: 130px; height: 220px; }
  .shape-3 { width: 180px; height: 90px; }
  
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

@media (max-width: 768px) {
  .navbar {
    padding: 1rem 1.5rem;
  }
  
  .btn-talk {
    display: none;
  }
  
  .hero {
    padding: 6rem 1.5rem 3rem;
  }
  
  .hero-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .hero-3d {
    width: 300px;
    height: 300px;
    opacity: 0.5;
  }
  
  .about,
  .services,
  .cases,
  .cta {
    padding: 5rem 1.5rem;
  }
  
  .footer-links {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .scroll-hint {
    display: none;
  }
}

/* ============================================
   v3.0 - 栖息地风格 + 喵盒内容 新增样式
   ============================================ */

/* --- Hero核心数据卡片 --- */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 3rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.hero-stat-item {
  background: var(--color-bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 1.25rem 1rem;
  text-align: center;
  transition: all var(--transition-fast);
}

.hero-stat-item:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: 0 10px 30px var(--color-accent-light);
}

.stat-num {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 0.25rem;
  line-height: 1;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

/* --- 通用Section --- */
.section {
  padding: 6rem 2rem;
  background: var(--color-bg);
  position: relative;
}

.section.alt {
  background: var(--color-bg-dark);
}

.section-inner {
  max-width: 1400px;
  margin: 0 auto;
}

.center-head {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 4rem;
}

.center-head .tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 1rem;
  padding: 0.375rem 1rem;
  background: var(--color-accent-light);
  border-radius: 100px;
  border: 1px solid var(--color-border);
}

.center-head h2 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.center-head p {
  font-size: 1.0625rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* --- 产品体系三大板块 --- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.product-card {
  background: var(--color-bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 2.5rem;
  transition: all var(--transition-slow);
  position: relative;
  overflow: hidden;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slow);
}

.product-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-accent);
  box-shadow: 0 20px 60px var(--color-accent-light);
}

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

.product-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
}

.product-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.product-card .sub {
  font-size: 0.875rem;
  color: var(--color-accent);
  margin-bottom: 1rem;
  font-weight: 500;
}

.product-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.product-card ul {
  list-style: none;
  padding: 0;
  margin-bottom: 1.5rem;
}

.product-card ul li {
  font-size: 0.875rem;
  color: var(--color-text-light);
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
  border-bottom: 1px solid var(--color-border-light);
}

.product-card ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.product-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-accent);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.product-link:hover {
  gap: 0.75rem;
}

/* --- 数据展示条 --- */
.stats-band {
  background: linear-gradient(135deg, var(--color-bg-light), var(--color-bg-dark));
  padding: 3rem 2rem;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.stats-band-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.stats-item .num {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
  line-height: 1;
}

.stats-item .label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* --- 平台能力 --- */
.platform-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.platform-card {
  display: flex;
  gap: 1.5rem;
  background: var(--color-bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 2rem;
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-slow);
}

.platform-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-accent);
  box-shadow: 0 20px 60px var(--color-accent-light);
}

.platform-visual {
  font-size: 3rem;
  flex-shrink: 0;
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-light);
  border-radius: 16px;
  border: 1px solid var(--color-border);
}

.platform-body h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--color-text);
}

.platform-body p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* --- 服务保障 --- */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.service-grid .service-card {
  background: var(--color-bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 2.5rem;
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-slow);
  display: block;
}

.service-grid .service-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-accent);
  box-shadow: 0 20px 60px var(--color-accent-light);
}

.service-grid .service-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
}

.service-grid .service-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.service-grid .service-card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

.service-link {
  color: var(--color-accent);
  font-size: 0.875rem;
  font-weight: 600;
}

/* --- CTA区 --- */
.cta-section {
  position: relative;
  padding: 8rem 2rem;
  overflow: hidden;
  text-align: center;
}

.cta-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.cta-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
}

.cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(8, 31, 23, 0.9), rgba(13, 59, 46, 0.8));
}

.cta-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.cta-content h2 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  margin-bottom: 1.5rem;
  line-height: 1.1;
}

.cta-content p {
  font-size: 1.125rem;
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: 2.5rem;
}

.cta-btns {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn-outline-light {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2.5rem;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 100px;
  color: #fff;
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
}

/* --- 预约表单 --- */
.contact-section {
  padding: 6rem 2rem;
  background: var(--color-bg-dark);
}

.contact-form-wrap {
  max-width: 700px;
  margin: 0 auto;
  background: var(--color-bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 3rem;
}

.contact-form .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-light);
}

.form-group input,
.form-group select {
  padding: 0.875rem 1rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  color: var(--color-text);
  font-size: 0.9375rem;
  transition: all var(--transition-fast);
  outline: none;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-light);
}

.code-input {
  display: flex;
  gap: 0.5rem;
}

.code-input input {
  flex: 1;
}

.code-btn {
  padding: 0.875rem 1rem;
  background: var(--color-accent-light);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  color: var(--color-accent);
  font-size: 0.8125rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.code-btn:hover {
  background: var(--color-accent);
  color: var(--color-bg-dark);
}

.form-agree {
  margin-bottom: 2rem;
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  cursor: pointer;
  line-height: 1.6;
}

.checkbox-label input {
  margin-top: 0.25rem;
  accent-color: var(--color-accent);
}

.btn-submit {
  width: 100%;
  padding: 1.125rem;
  background: var(--color-accent);
  border: none;
  border-radius: 100px;
  color: var(--color-bg-dark);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-submit:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px var(--color-accent-glow);
}

/* --- 页脚 --- */
.footer {
  background: var(--color-bg-dark);
  border-top: 1px solid var(--color-border);
  padding: 4rem 2rem 0;
}

.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 4rem;
  padding-bottom: 3rem;
}

.footer-brand .footer-logo {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.footer-brand .footer-logo em {
  font-style: normal;
  color: var(--color-accent);
  font-size: 0.875rem;
  background: var(--color-accent-light);
  padding: 2px 8px;
  border-radius: 10px;
  margin-left: 0.5rem;
}

.footer-brand p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  max-width: 400px;
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.footer-col h5 {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-col a {
  display: block;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-decoration: none;
  padding: 0.375rem 0;
  transition: all var(--transition-fast);
}

.footer-col a:hover {
  color: var(--color-accent);
  padding-left: 0.5rem;
}

.footer-bottom {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

/* --- 返回顶部按钮 --- */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-accent);
  border: none;
  color: var(--color-bg-dark);
  font-size: 1.25rem;
  font-weight: 700;
  cursor: pointer;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-fast);
  box-shadow: 0 4px 20px var(--color-accent-glow);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-accent-dark);
  transform: translateY(-4px);
}

/* --- 浮动咨询按钮 --- */
.float-consult {
  position: fixed;
  right: 2rem;
  bottom: 6rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  z-index: 998;
}

.float-btn {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--color-bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.125rem;
  transition: all var(--transition-fast);
}

.float-btn:hover {
  border-color: var(--color-accent);
  transform: translateX(-4px);
  box-shadow: 0 8px 24px var(--color-accent-light);
}

.float-btn.primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-bg-dark);
}

.float-btn.primary:hover {
  background: var(--color-accent-dark);
}

.float-icon {
  font-size: 1.25rem;
}

.float-text {
  font-size: 0.625rem;
  font-weight: 600;
}

/* --- 响应式 --- */
@media (max-width: 1024px) {
  .nav-links {
    display: none;
  }
  
  .btn-menu {
    display: inline-flex;
  }
  
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .stats-band-inner {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }
  
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  
  .footer-cols {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .section {
    padding: 4rem 1.5rem;
  }
  
  .hero-stats {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }
  
  .hero-stat-item {
    padding: 1rem 0.75rem;
  }
  
  .stat-num {
    font-size: 1.375rem;
  }
  
  .product-grid,
  .platform-grid,
  .service-grid {
    grid-template-columns: 1fr;
  }
  
  .platform-card {
    flex-direction: column;
  }
  
  .contact-form .form-row {
    grid-template-columns: 1fr;
  }
  
  .contact-form-wrap {
    padding: 2rem 1.5rem;
  }
  
  .footer-cols {
    grid-template-columns: 1fr 1fr;
  }
  
  .float-consult {
    right: 1rem;
    bottom: 5rem;
  }
  
  .back-to-top {
    right: 1rem;
    bottom: 1rem;
  }
}