/* science-method.css 页面样式 */
@import url("./root.css");
html {
  font-size: 1vw;
  overflow-x: hidden;
}
body {
  font-family: "Microsoft YaHei", Arial, sans-serif;
  color: #222;
  margin: 0;
}

/* 顶部大图与标语 - 从main.css复制 */
.main-hero {
  margin-top: 0rem;
  position: relative;
  height: 41rem;
  left: 0rem;
}
.main-hero-img {
  position: absolute;
  width: 90rem;
  height: 41rem;
  object-fit: cover;
  left: 0rem;
  display: block;
}
.main-hero-desc {
  position: absolute;
  right: 0rem;
  top: 22rem;
  width: 50rem;
  height: 15rem;
  background: var(--theme-banner);
  color: #fff;
  padding: 2rem 3rem 2rem 3rem;
}
.main-hero-title {
  font-size: 3.5rem;
  font-weight: 600;
  line-height: 2;
}
.main-hero-sub {
  margin-top: 1rem;
  font-size: 2rem;
}

/* MVT部分 - 仿main-hero样式 */
.main-mvt {
  margin-top: 0rem;
  position: relative;
  height: 38rem;
  left: 0rem;
}
.main-mvt-img {
  position: absolute;
  width: 40rem;
  height: 28rem;
  object-fit: cover;
  left: 9rem;
  top: 2rem;
  z-index: 1;
}
.main-mvt-desc {
  position: absolute;
  left: 20rem;
  top: 11rem;
  width: 65rem;
  height: 22rem;
  background: var(--theme-color2);
  color: #fff;
  padding: 0rem 3rem 2rem 3rem;
}
.main-mvt-title {
  position: absolute;
  left: 54rem;
  top: 4rem;
  font-size: 2rem;
  font-weight: 400;
  line-height: 1.3;
  color: var(--theme-color1);
}

.main-format {
  position: absolute;
  width: 34rem;
  height: 20rem;
  object-fit: cover;
  padding-left: 30rem;
  margin-top: 2rem;
  z-index: 1;
}
.main-mvt-desc li {
  margin-bottom: 2.5rem;
}

/* 保留原有的science-banner样式作为备份 */
.science-banner {
  display: flex;
  align-items: center;
  background: var(--theme-color1, #175ca6);
  color: #fff;
  padding: 3rem 0 2rem 0;
}

/* 48px = 3rem, 32px = 2rem */
.science-banner {
  display: flex;
  align-items: center;
  background: var(--theme-color1, #175ca6);
  color: #fff;
  padding: 3rem 0 2rem 0;
}
/* 320px = 20rem */
.science-banner-img {
  flex: 1;
  min-width: 20rem;
  text-align: center;
}
/* 480px = 30rem */
.science-banner-img img {
  width: 80%;
  height: auto;
}
/* 32px = 2rem */
.science-banner-title {
  flex: 2;
  padding-left: 2rem;
}
/* 16px = 1rem */
.science-banner-title h1 {
  font-size: 2.2em;
  font-weight: bold;
  margin-bottom: 1rem;
}
.science-banner-title p {
  font-size: 1.1em;
  margin: 0;
}

/* 32px = 2rem, 24px = 1.5rem */
.science-intro {
  background: #333;
  color: #fff;
  padding: 2rem 9rem;
  font-size: 1.1em;
  margin-bottom: 1rem;
  margin-top: 0rem;
  line-height: 2;
  font-weight: 100;
  display: block;
  text-align: justify;
}

/* 32px = 2rem, 24px = 1.5rem, 2px = 0.125rem, 8px = 0.5rem */
.science-mvt {
  display: flex;
  align-items: flex-start;
  background: #fff;
  margin: 2rem 0;
  padding: 2rem 1.5rem;
  box-shadow: 0 0.125rem 0.5rem rgba(0, 0, 0, 0.04);
}
/* 280px = 17.5rem */
.science-mvt-img {
  flex: 1;
  min-width: 17.5rem;
  text-align: center;
}
/* 320px = 20rem */
.science-mvt-img img {
  width: 90%;
  height: auto;
  background: #eee;
}
.science-mvt-content {
  flex: 2;
  padding-left: 2rem;
}
/* 12px = 0.75rem */
.science-mvt-content h2 {
  color: var(--theme-color1, #175ca6);
  font-size: 1.5em;
  margin-bottom: 0.75rem;
}
/* 20px = 1.25rem */
.science-mvt-content ul {
  padding-left: 1.25rem;
}

/* 24px = 1.5rem, 32px = 2rem */
.science-mvt-types {
  display: flex;
  gap: 1.5rem;
  margin: 0rem 9rem 0rem 9rem;
  justify-content: center;
}
/* 24px = 1.5rem, 16px = 1rem, 2px = 0.125rem, 8px = 0.5rem, 220px = 13.75rem */
.mvt-type {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 13.75rem;
}
.mvt-type-blue {
  background: var(--theme-color1, #175ca6);
  color: #fff;
}
.mvt-type-gray {
  background: var(--theme-color2, #222c36);
  color: #fff;
}
.mvt-type-text {
  width: 100%;
  text-align: center;
  font-weight: 300;
  padding: 0 0 0.5rem 0;
}

/* 新增的多行文本样式 */
.mvt-multi-line {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  padding: 4rem 0 6rem 0;
}
.mvt-multi-line p {
  margin: 0;
  line-height: 2;
  text-align: center;
  font-size: 1.2rem;
  font-weight: 100;
}

/* 8px = 0.5rem */
.mvt-type h3 {
  font-size: 2rem;
  margin: 1.5rem 0;
  font-weight: 400;
}
/* 12px = 0.75rem */
.mvt-type p {
  font-size: 1.2rem;
  margin-bottom: 1rem;
  font-weight: 100;
}
/* 180px = 11.25rem */
.image-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem 0rem;
  width: 100%;
  padding: 1rem;
}
.image-grid img {
  width: 100%;
  aspect-ratio: 1/1;
  object-fit: cover;
  background: #eee;
}
.mvt-type img {
  width: 100%;
  height: 12rem;
}

/* 更新后的feature样式 */
.science-features {
  margin: 2rem 0;
  padding: 0 1.5rem;
  position: relative;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}
.feature-square {
  aspect-ratio: 1/1;
  display: flex;
  align-items: center;
  justify-content: center;
  background-size: cover;
  background-position: center;
  padding: 1rem;
}
.feature-square span {
  font-size: 2rem;
  font-weight: 400;
  text-align: left;
  width: 100%;
  padding-left: 1rem;
  line-height: 1.5;
}
.feature-blue {
  background: var(--theme-color1);
  color: #fff;
}
.feature-gray {
  background: var(--theme-color2);
  color: #fff;
}

/* 32px = 2rem, 48px = 3rem, 24px = 1.5rem, 2px = 0.125rem, 8px = 0.5rem */
.science-chip {
  position: relative;
  height: 34rem;
  margin-top: 0rem;
}
.graph-img {
  position: absolute;
  width: 28rem;
  height: 20rem;
  object-fit: cover;
  left: 35rem;
  top: 11rem;
  z-index: 2;
}
.chip-img {
  position: absolute;
  width: 40rem;
  height: 26rem;
  object-fit: cover;
  right: -2rem;
  top: 3rem;
  z-index: 1;
}
.chip-title {
  position: absolute;
  left: 9rem;
  top: 0rem;
  font-size: 2.5rem;
  font-weight: 400;
  line-height: 1.3;
  color: var(--theme-color1);
}
.chip-desc {
  position: absolute;
  left: 0rem;
  top: 8rem;
  width: 100rem;
  height: 26rem;
  background: var(--theme-color1);
  color: #fff;
  padding: 2rem 3rem 2rem 9rem;
  box-sizing: border-box;
}
.chip-desc ul {
  margin-top: 1rem;
  font-size: 1rem;
  list-style-type: none;
  padding-left: 0;
}
.chip-desc li {
  margin-bottom: 1.5rem;
  font-weight: 300;
}

/* 无圆角风格 */
* {
  border-radius: 0 !important;
}

.feature-section {
  position: relative;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  background-color: #0b4b84; /* 蓝色背景条 */
  height: 11rem;
  margin-top: 15rem;
  padding: 0 9rem;
  gap: 1rem;
  top: ;
  overflow: visible;
}

/* 单个模块 */
.feature-item {
  text-align: center;
  color: white;
  position: relative;
}

/* 图片：上浮出蓝色背景条 */
.feature-item img {
  width: 230px;
  height: auto;
  border-radius: 6px;
  margin-bottom: -40px; /* 让图片“浮出”蓝条 */
  position: relative;

}

/* 文字：保持在蓝色条中 */
.feature-item p {
  font-size: 1.5em;
  font-weight: 300;
  margin-top: 50px;
}

/*.feature-section {
  position: relative;
  left: 0rem;
  top: 0rem;
  width: 100rem;
  height: 16rem;
  background: var(--theme-color1);
  color: #fff;
  margin: 5rem 0rem;
  padding: 2rem 3rem 2rem 9rem;
  box-sizing: border-box;
}*/