/* ========================
   基础设计系统变量
   ======================== */
@tailwind base;
@tailwind components;
@tailwind utilities;
@font-face {
  font-family: "HarmonyOS_Sans_SC";
  src:
    url("../fonts/HarmonyOS_Sans_SC_Regular.woff2") format("woff2"),
    url("../fonts/HarmonyOS_Sans_SC_Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  /* ===== 字体系统 ===== */
  --font-sans:
    "HarmonyOS_Sans_SC", "Segoe UI", system-ui, -apple-system, sans-serif;
  /* 主字体 */
  --font-serif: Georgia, "Times New Roman", serif;
  /* 品牌主色 */
  --color-primary: #e44745; /* 主要颜色（深） */
  --color-primary-light: #ffd7ff; /* 主要颜色（浅） */

  /* 辅助色/点缀色 */
  --color-accent: #f4f3d3; /* 次要颜色 */

  /* 背景色 */
  --color-background: #ffffff; /* 亮背景 */
  --color-background-muted: #c5c5c5; /* 亮背景 */
  --color-background-alt: #2c2c2c; /* 浅背景（作为默认背景的替代/衬托） */
  --color-background-inverse: #212121; /* 深背景（与默认背景相反）*/

  /* 文本色 (通常与背景色配对出现，可作为扩展) */
  --color-text: #ffffff;
  --color-text-alt: #333333; /* 在深色背景上使用的文本色 */
  --color-text-muted: #aeb6bd;
}

/* ======================== 基础元素样式 ======================== */
* {
  margin: 0;
  padding: 0;
}
html {
  font-size: 16px;
  overflow-x: hidden;
  height: 100vh;
  scroll-behavior: smooth;
  scroll-padding-top: 60px;
}
body {
  font-family: var(--font-sans);
  line-height: 1.6;
  min-height: 100vh;
  text-rendering: optimizeLegibility;
  position: relative;
  font-size: 1rem;
  display: flex;
  flex-direction: column;
  /* color: rgba(255, 255, 255); */
}
body > section {
  flex: 1;
}
body > footer {
  margin-top: auto;
}
img {
  overflow-clip-margin: content-box;
  overflow: clip;
}

/* 多行文本截断 */
.line-clamp-4 {
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 隐藏 */
.hide {
  opacity: 0;
  display: none;
}
.show {
  opacity: 1;
  display: block;
}

.maxW {
  max-width: min(1600px, 95vw);
  margin: 0 auto;
  padding: 0 clamp(0.5rem, 3vw, 1rem);
}
.maxW2 {
  max-width: min(1300px, 95vw);
  margin: 0 auto;
  padding: 0 clamp(0.5rem, 3vw, 1rem);
}

/* ======================== Layui修改 ======================== */
.layui-layer-setwin .layui-layer-close2:hover {
  background-color: var(--color-primary);
}
.layui-btn-primary:hover {
  border-color: var(--color-primary);
}
.layui-tabs-header .layui-this,
.layui-tabs-header li:hover {
  color: var(--color-primary);
}

/* 入场动画 */

.animated-element {
  opacity: 0;
  transform: translateY(100px);
  transition:
    opacity 0.5s ease,
    transform 0.5s ease;
}
.animated-element.ae-m {
  opacity: 0;
  transform: translateY(100px);
  transition:
    opacity 0.5s ease,
    transform 0.5s ease;
}
.animated-element.ae-t {
  opacity: 0;
  transform: translateY(-100px);
  transition:
    opacity 0.5s ease,
    transform 0.5s ease;
}
.animated-element.ae-l {
  opacity: 0;
  transform: translateX(-100px);
  transition:
    opacity 0.5s ease,
    transform 0.5s ease;
}
.animated-element.ae-r {
  opacity: 0;
  transform: translateX(100px);
  transition:
    opacity 0.5s ease,
    transform 0.5s ease;
}
/* 动画激活时的状态 */
.animated-element.active,
.animated-element.ae-t.active,
.animated-element.ae-m.active,
.animated-element.ae-l.active,
.animated-element.ae-r.active {
  opacity: 1;
  transform: translateY(0);
}

/* 呼吸动画 */

.breathing-effect {
  animation: breathe var(--duration, 4.2s) ease-in-out infinite;
}

@keyframes breathe {
  0%,
  100% {
    opacity: 0.8;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.02);
  }
}

/* ======================== 悬停下划线 ======================== */
.hover-underline {
  position: relative;
}
.hover-underline::after {
  content: "";
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: #000;
  transition: all 0.3s;
}
.hover-underline:hover::after {
  width: 100%;
}

a {
  color: var(--color-text-muted);
  transition: color 0.2s ease;
}

a.active {
  color: var(--color-text);
  font-weight: bold;
}
a:hover {
  color: var(--color-text-alt);
}

/* ======================== 滚动条 ======================== */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 10px;
}

::-webkit-scrollbar-thumb {
  background: #888;
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: #555;
}

/* 适用于Firefox */
@supports (scrollbar-color: #888 #ffffff) {
  * {
    scrollbar-width: thin;
    scrollbar-color: #888 #ffffff;
  }
}
@media screen and (min-width: 30em) {
  /* .bg-transparent-ns { background-color: transparent; } */
}
/* Tachyons */
@media screen and (min-width: 30em) and (max-width: 60em) {
  /* .bg-transparent-m { background-color: transparent; } */
}
@media screen and (min-width: 60em) {
  .bg-transparent-l {
    background-color: transparent;
  }
  .bg-white-10-l {
    background-color: rgba(255, 255, 255, 0.1);
  }
}