body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
  color: #ffffff;
}

header {
  padding: 60px 40px;
  text-align: center;
}

header h1 {
  font-size: 56px;
  margin-bottom: 10px;
  letter-spacing: 2px;
}



header p {
  font-size: 20px;
  opacity: 0.85;
}

section {
  padding: 60px 40px;
  max-width: 1100px;
  margin: auto;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 30px;
}

.card {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  padding: 30px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  transition: 
    transform 0.25s ease,
    box-shadow 0.25s ease;
}

.card:hover {
  transform: translateY(-4px); /* 比 -8 更“稳” */
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
}
.card h3 {
  margin-top: 0;
  font-size: 24px;
}

.site-footer{
  padding: 22px 18px;
  border-top: 1px solid rgba(255,255,255,0.12);
  background: rgba(0,0,0,0.15);
}

.footer-inner{
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  gap: 18px;
  align-items: center;
  justify-content: space-between;
}

.footer-brand{
  font-size: 14px;
  opacity: 0.9;
}

.footer-links{
  display: flex;
  gap: 14px;
  margin-top: 6px;
  flex-wrap: wrap;
}

.site-footer a{
  color: #fff;
  text-decoration: none;
  opacity: 0.85;
}

.site-footer a:hover{
  opacity: 1;
  text-decoration: underline;
}

.footer-right{
  display: flex;
  gap: 10px;
  align-items: center;
}

.footer-right .social{
  width: 36px;
  height: 36px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.10);
}

.footer-right .social img{
  width: 18px;
  height: 18px;
  opacity: 0.9;
}


.hero h1,
.hero .tagline,
.hero .slogan {
  font-size: 28px;     /* 你可以在 24–32px 之间微调 */
  font-weight: 400;    /* 去掉营销感 */
  line-height: 1.35;
}


/* ===== Top Navigation ===== */
nav {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 14px 40px;
}

nav .logo {
  font-size: 22px;
  font-weight: bold;
  letter-spacing: 2px;
  flex-shrink: 0;
}

nav ul {
  display: flex;
  align-items: center;
  gap: 22px;

  margin-left: auto;   /* 把菜单整体推到右侧 */
  margin-right: 24px;  /* 和语言按钮拉开距离 */

  list-style: none;
  padding: 0;
  flex-shrink: 0;
}

nav ul li{ margin: 0; padding: 0; }

nav ul li a {
  text-decoration: none;
  color: #ffffff;
  font-weight: 500;
  opacity: 0.85;
}

nav ul li a:hover {
  opacity: 1;
  text-decoration: underline;
}

nav ul li a.active {
  opacity: 1;
  text-decoration: underline;
  font-weight: bold;
}

nav .logo img{
  height: 42px;
  width: auto;
}

.card-link {
  display: inline-block;
  margin-top: 16px;
  color: #ffffff;
  font-weight: 600;
  text-decoration: none;
  opacity: 0.85;
}

.card-link:hover {
  opacity: 1;
  text-decoration: underline;
}

.card-img{
  width: 100%;
  height: 180px;
  object-fit: contain;   /* 不裁剪，完整显示机器人 */
  display: block;
  margin-bottom: 16px;
  border-radius: 12px;
  background: rgba(255,255,255,0.06); /* 给白底图片一个衬底 */
  padding: 10px;         /* 让图片不贴边 */
}

/* ===== SVG 线稿专用修正 ===== */
.card-img.card-svg {
  background: transparent;     /* 去掉“照片式底色” */
  padding: 0;                  /* 线稿不要 padding */
  opacity: 0.6;                /* 让它像背景插画 */
  filter: drop-shadow(0 0 6px rgba(120, 200, 255, 0.35));
}

/* 让 SVG 在卡片里更稳定 */
.card-img.card-svg {
  object-fit: contain;
}

/* ===== Language dropdown ===== */
.lang-dropdown {
  flex-shrink: 0;
  position: relative;
  display: flex;
  align-items: center;
}

.lang-btn{
  cursor: pointer;
  color: #fff;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 12px;
  padding: 8px 12px;
  font-size: 14px;
  line-height: 1;
}

.lang-btn:hover{ background: rgba(255,255,255,0.10); }

.lang-btn .chev{ margin-left: 6px; opacity: 0.85; }

.lang-menu{
  position: absolute;
  right: 0;
  top: calc(100% + 10px);
  min-width: 200px;
  background: rgba(15, 32, 39, 0.95);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 14px;
  padding: 8px;
  box-shadow: 0 14px 40px rgba(0,0,0,0.35);
  display: none;
  z-index: 999;
}

.lang-menu a{
  display: block;
  padding: 10px 10px;
  border-radius: 10px;
  color: #fff;
  text-decoration: none;
  opacity: 0.9;
  font-size: 14px;
}

.lang-menu a:hover{
  background: rgba(255,255,255,0.08);
  opacity: 1;
}

.lang-menu a[aria-selected="true"]{
  background: rgba(255,255,255,0.12);
  opacity: 1;
  font-weight: bold;
}

/* open state */
.lang-dropdown.open .lang-menu{ display: block; }
.lang-dropdown.open .lang-btn{ background: rgba(255,255,255,0.10); }



#beetleBot{
  position: fixed;
  left: 0;
  top: 0;
  width: 64px;
  height: 64px;
  will-change: transform;
  z-index: 999;
}
.botBody{
  width: 100%;
  height: 100%;
  position: relative;
  z-index: 2;
}

.botScan{
  position: absolute;
  inset: -80%;
  z-index: 1;
  pointer-events: none;
  filter: drop-shadow(0 0 12px rgba(120,200,255,.4));
  transform: rotate(157.5deg);   /* ← 新增这一行 */
}

.scanLine{
  transform-origin: 60px 60px;
  animation: scanSweep 0.5s ease-in-out infinite alternate;
}

@keyframes scanSweep{
  from { transform: rotate(0deg); }
  to   { transform: rotate(45deg); }
}

/* ===== Contact Form ===== */
form{
  max-width: 600px;
  margin: 0 auto;
}

form label{
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
  opacity: 0.9;
}

form input,
form textarea{
  width: 100%;
  padding: 12px 14px;
  margin-bottom: 18px;

  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 10px;

  color: #fff;
  font-size: 14px;
  box-sizing: border-box;
}

form input::placeholder,
form textarea::placeholder{
  color: rgba(255,255,255,0.6);
}

form textarea{
  resize: vertical;
  min-height: 120px;
}

form button,
form input[type="submit"]{
  background: linear-gradient(135deg, #4facfe, #00f2fe);
  color: #0f2027;

  border: none;
  border-radius: 12px;
  padding: 12px 22px;

  font-size: 14px;
  font-weight: bold;
  cursor: pointer;
}

form button:hover,
form input[type="submit"]:hover{
  opacity: 0.9;
}

/* ===== Checkbox row (Datenschutz) ===== */
.form-checkbox{
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 18px 0;
}

.form-checkbox input[type="checkbox"]{
  width: 16px;
  height: 16px;
  margin: 0;              /* 去掉浏览器默认偏移 */
  cursor: pointer;
}

.form-checkbox label{
  margin: 0;
  font-size: 14px;
  line-height: 1.4;
}

.hero{
  position: relative;
  max-width: 1100px;        /* 控制内容宽度 */
  margin: 0 auto;          /* 让 hero 区域水平居中 */
  padding: 120px 40px 80px;/* 上下留白，避开 header */
  text-align: center;      /* 文字居中 */
}

/* ===== Slim Cookie Banner (fixed) ===== */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  box-sizing: border-box;        /* ⭐关键：防止按钮被挤出 */
  padding: 10px 16px;

  background: rgba(10, 25, 32, 0.96);
  color: #ffffff;

  display: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;

  font-size: 14px;
  line-height: 1.4;
  z-index: 9999;
}

.cookie-text {
  flex: 1;
  min-width: 0;                  /* ⭐防止挤压按钮 */
}

.cookie-text a {
  color: #5cc8ff;
  text-decoration: underline;
}

.cookie-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;                /* ⭐按钮永不被压扁 */
}

/* Buttons */
.btn-primary {
  background: #5cc8ff;
  color: #081218;
  border: none;
  padding: 6px 12px;             /* 矮按钮 */
  border-radius: 4px;
  font-weight: 600;
  cursor: pointer;
}

.btn-secondary {
  background: transparent;
  color: #ffffff;
  border: 1px solid rgba(255,255,255,0.4);
  padding: 6px 12px;
  border-radius: 4px;
  cursor: pointer;
}

.btn-primary:hover {
  filter: brightness(0.95);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.08);
}

/* 小屏兜底：不溢出 */
@media (max-width: 600px) {
  .cookie-banner {
    flex-direction: column;
    align-items: stretch;
  }

  .cookie-actions {
    justify-content: flex-end;
  }
}

a.card.card-click {
  display: block;
  color: inherit;
  text-decoration: none;
}

a.card.card-click:hover .card-link {
  text-decoration: underline;
}