/* ===== 全局重置 ===== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: Arial, sans-serif;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 10px;
  background: linear-gradient(135deg, rgb(214, 238, 250), rgb(180, 222, 250), rgb(240, 248, 255));
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background: var(--bg) no-repeat center/cover;
  opacity: 1;
}

/* ===== 主容器（液态玻璃效果） ===== */
.container {
  position: relative;
  z-index: 998;
  width: 80vw;
  max-width: 600px;
  min-width: 300px;
  margin: 30px auto;
  padding: 20px 25px;
  text-align: center;
  border-radius: 20px;
  border: 0px solid rgba(255,255,255,0.25);

  /* 液态玻璃效果 */
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px) saturate(180%) brightness(1.1) contrast(1.05);
  -webkit-backdrop-filter: blur(10px) saturate(180%) brightness(1.1) contrast(1.05);

  box-shadow: 0 8px 30px rgba(0,0,0,0.1);
  color: #333;
  flex-shrink: 0;
}

/* ===== 表单区域 ===== */
.form-section {
  display: grid;
  gap: 20px;
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
}

/* ===== 输入组件 ===== */
.input-group {
  width: 100%;
  position: relative;
}

input[type="url"],
select,
.custom-select .select-selected {
  width: 100%;
  padding: 16px 24px;
  border: 0px solid rgba(255,255,255,0.25);
  border-radius: 12px;
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(10px) saturate(180%) brightness(1.1) contrast(1.05);
  -webkit-backdrop-filter: blur(10px) saturate(180%) brightness(1.1) contrast(1.05);
  font-size: 16px;
  color: #333;
  outline: none;
  cursor: pointer;
  transition: all 0.3s ease;
  appearance: none;
}

input[type="url"]:focus,
select:focus,
.custom-select .select-selected:focus {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.45);
}


/* ===== 自定义下拉菜单 ===== */
.custom-select {
  position: relative;
  width: 100%;
  cursor: pointer;
  user-select: none;
  z-index: 10;
}

.select-selected {
  padding: 16px 24px;
  border-radius: 12px;
  color: #333;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px) saturate(180%) brightness(1.1) contrast(1.05);
  -webkit-backdrop-filter: blur(10px) saturate(180%) brightness(1.1) contrast(1.05);
  transition: background 0.25s ease;
  position: relative;
}

.select-selected:hover {
  background: rgba(255, 255, 255, 0.15);
}

.select-selected::after {
  content: "▼";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
  color: #6e8efb;
  pointer-events: none;
}

.select-items {
  position: absolute;
  top: calc(100% + 5px);
  left: 0;
  width: 100%;
  z-index: 9999;
  background: rgba(104,48,235, 0.9);
  backdrop-filter: blur(10px) saturate(180%) brightness(1.1) contrast(1.05);
  -webkit-backdrop-filter: blur(10px) saturate(180%) brightness(1.1) contrast(1.05);
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  border: 0px solid rgba(255,255,255,0.08);
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  overflow: hidden;
}

.select-items.show {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.select-items div {
  display: block;
  padding: 10px 20px;
  font-size: 14px;
  color: #333;
  white-space: nowrap;
}

.select-items div:hover {
  background: rgba(242, 230, 215,0.05);
}

.select-items div:first-child {
  border-top-left-radius: 12px;
  border-top-right-radius: 12px;
}

.select-items div:last-child {
  border-bottom-left-radius: 12px;
  border-bottom-right-radius: 12px;
}

/* ===== 按钮 ===== */
button {
  width: 100%;
  padding: 12px;
  margin-top: 15px;
  font-size: 18px;
  border-radius: 12px;
  border: none;
  color: #333;
  cursor: pointer;
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(10px) saturate(180%) brightness(1.1) contrast(1.05);
  -webkit-backdrop-filter: blur(10px) saturate(180%) brightness(1.1) contrast(1.05);
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
  will-change: transform, opacity;
}

button:hover {
  transform: scale(1.03);
  box-shadow: 0 6px 18px rgba(0,0,0,0.5);
  background: rgba(255,255,255,0.05);
}

button:active {
  transform: scale(0.97);
}

/* ===== 错误提示 ===== */
.error-msg {
  color: #ff4444;
  font-size: 14px;
  text-align: center;
  margin: 10px 0;
  padding: 8px 15px;
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(10px) saturate(180%) brightness(1.1) contrast(1.05);
  -webkit-backdrop-filter: blur(10px) saturate(180%) brightness(1.1) contrast(1.05);
  border: 1px solid #ff4444;
  border-radius: 8px;
  opacity: 0;
  transform: translateY(-5px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.error-msg.show {
  opacity: 1;
  transform: translateY(0);
}

.error-msg.hide {
  opacity: 0;
  transform: translateY(-10px);
}

/* ===== 标题 & 副标题 ===== */
h2 {
  color: #333;
  text-align: center;
  margin-bottom: 15px;
  font-size: 24px;
  letter-spacing: 1px;
}

.subtitle {
  color: #333;
  text-align: center;
  font-size: 14px;
  margin-bottom: 10px;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 5px 15px;
}

.support-text {
  font-weight: 500;
  color: #6e8efb;
}

.platforms {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 5px 15px;
  justify-content: center;
}

.platforms span {
  position: relative;
  padding-right: 15px;
}

.platforms span:not(:last-child)::after {
  content: "•";
  position: absolute;
  right: -3px;
  color: #999;
  font-weight: bold;
}

/* ===== 底部样式 & 图标 ===== */
.footer {
    position: relative; /* 或 fixed/bottom:0 */
    z-index: 998;
    width: 100%;
    padding: 25px 15px;
    background: rgba(255, 255, 255, 0.05);
    text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  overflow: hidden;
}

.footer-right {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 15px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.icon-wrapper {
  display: inline-block;
}

.icon-img {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(10px) saturate(180%) brightness(1.1) contrast(1.05);
  -webkit-backdrop-filter: blur(10px) saturate(180%) brightness(1.1) contrast(1.05);
  padding: 6px;
  display: block;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  will-change: transform, opacity;
  position: relative;
  z-index: 555;
}

.icon-wrapper:first-child .icon-img:hover {
  transform: scale(1.1) rotate(-10deg);
}
.icon-wrapper:last-child .icon-img:hover {
  transform: scale(1.1) rotate(10deg);
}

.copyright {
  font-size: 15px;
  color: #333;
  margin-top: 5px;
  background: rgba(255,255,255,0.05);
  padding: 4px 10px;
  border-radius: 10px;
  backdrop-filter: blur(10px) saturate(180%) brightness(1.1) contrast(1.05);
  -webkit-backdrop-filter: blur(10px) saturate(180%) brightness(1.1) contrast(1.05);
  position: relative;
  z-index: 2;
}

/* ===== 爱心动画 ===== */
@keyframes float-up {
  0% {transform:translateY(0) scale(1);opacity:1;}
  100%{transform:translateY(-30px) scale(1.5);opacity:0;}
}

.heart {
  position: absolute;
  font-size: 18px;
  pointer-events: none;
  animation: float-up 1s ease-out forwards;
  will-change: transform, opacity;
}

/* ===== 响应式调整 ===== */
@media (max-width:480px){
  .container {padding:20px 15px;}
  input[type="url"] {padding:14px 16px; font-size:15px;}
  button {padding:14px 20px; font-size:16px;}
  .icon-img {width:38px; height:38px;}
}

/* ===== 全局文字颜色 ===== */
:root { --dynamic-text-color: #333; }

h1, h2, h3, p, a, span, div, .subtitle,
.lang-btn, .lang-dropdown a,
.engine-dropdown div, .copyright,
input, input::placeholder, button,
.custom-select {
    color: var(--dynamic-text-color) !important;
}
/* ------------------ 调整全局用户选择，仅禁止非交互元素 ------------------ */
body *:not(input):not(textarea):not(button) {
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  -webkit-touch-callout: none;
  -webkit-user-drag: none;
}
/* ------------------ 全局禁止选中 ------------------ */
body, body * {
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  -webkit-touch-callout: none;
  -webkit-user-drag: none;
}
input, textarea {
  user-select: text !important;
  -webkit-user-select: text !important;
  -moz-user-select: text !important;
  -ms-user-select: text !important;
}