/**
 * Home AI Features Widget
 * 【首页】AI特性展示模块 — 跟随主题：白底 #2b271b 主色 #f5c12e 金色点缀
 */

.feature-section-one {
  --theme-color-white: #ffffff;
  --theme-main-text:   #2b271b;
  --theme-sub-text:    #6d6453;
  --theme-gold:        #f5c12e;
  --theme-gold-soft:   #fff6d1;
  --theme-gold-deep:   #d9a815;
  --theme-border:      #ece8d9;
  --theme-card-bg:     #ffffff;
  --section-bg:        #ffffff;
  --title-font: "Rajdhani", "Nunito Sans", -apple-system, "Segoe UI", sans-serif;
  --text-font:  "Nunito Sans", -apple-system, "Segoe UI", sans-serif;
}

.feature-section-one .auto-container {
  position: static;
  max-width: 1480px;          /* 扩展容器宽度，避免多列被挤压换行 */
  padding: 0 20px;
  margin: 0 auto;
  width: 100%;
}

/* 4 张特性卡片所在的行：取消默认 gutter 过大导致的换行动机 */
.feature-section-one > .auto-container > .row + .row {
  margin-left: -10px;
  margin-right: -10px;
  row-gap: 4px;
}
.feature-section-one > .auto-container > .row + .row > [class*="col-"] {
  padding-left: 10px;
  padding-right: 10px;
}

.feature-section-one {
  padding: 60px 0 90px;
  background: var(--section-bg);
}

/* 标题区 */
.feature-section-one .sec-title {
  margin-bottom: 50px;
}
.feature-section-one .sec-title .section-sub-title {
  margin-bottom: 20px;
}
.feature-section-one .sec-title .section-sub-title .sub-title {
  display: inline-block;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--theme-gold-deep);
  padding: 8px 24px;
  border-radius: 40px;
  position: relative;
  background: var(--theme-gold-soft);
  border: 1px solid rgba(245, 193, 46, 0.4);
  margin: 0;
  text-transform: uppercase;
}
.feature-section-one .sec-title .section-title .title {
  color: var(--theme-main-text);
  font-weight: 700;
  font-size: 44px;
  line-height: 54px;
  margin: 0;
}
@media (min-width: 1200px) and (max-width: 1399.98px) {
  .feature-section-one .sec-title .section-title .title { font-size: 40px; line-height: 50px; }
}
@media (min-width: 992px) and (max-width: 1199.98px) {
  .feature-section-one .sec-title .section-title .title { font-size: 36px; line-height: 46px; }
}
@media (min-width: 768px) and (max-width: 991.98px) {
  .feature-section-one .sec-title .section-title .title { font-size: 32px; line-height: 42px; }
}
@media (min-width: 576px) and (max-width: 767.98px) {
  .feature-section-one .sec-title .section-title .title { font-size: 28px; line-height: 38px; }
}

/* 特性卡片 */
.feature-section-one .single-feature-box {
  background: var(--theme-card-bg);
  border: 1px solid var(--theme-border);
  border-radius: 22px;
  padding: 28px 32px;           /* 缩小内边距，避免列内横向空间不足 */
  position: relative;
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
  margin-bottom: 20px;
  overflow: hidden;
  box-shadow: 0 4px 18px rgba(43, 39, 27, 0.04);
  display: flex;                 /* 强制 feature-content 与 feature-thumb 在一行显示 */
  align-items: center;
  gap: 20px;
  flex-wrap: nowrap;
}
.feature-section-one .single-feature-box:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(43, 39, 27, 0.1);
  border-color: rgba(245, 193, 46, 0.4);
}
.feature-section-one .single-feature-box.two {
  padding: 28px 32px 36px;
}
.feature-section-one .single-feature-box.two .feature-content p {
  margin: 8px 0 20px;
}
@media (min-width: 992px) and (max-width: 1199.98px) {
  .feature-section-one .single-feature-box.two .feature-content p { margin: 8px 0 16px; }
}
.feature-section-one .single-feature-box.three {
  padding: 28px 24px;
  display: block;            /* 无 feature-thumb 的卡片恢复 block，保证竖向紧凑 */
}
@media (min-width: 992px) and (max-width: 1199.98px) {
  .feature-section-one .single-feature-box.three { padding: 28px 18px; }
}
.feature-section-one .single-feature-box.three .feature-content p {
  margin: 8px 0 24px;
  width: 100%;
}
.feature-section-one .single-feature-box.four {
  padding: 28px 32px 80px;
  display: block;            /* 有 feature-diagram 绝对定位的卡片恢复 block */
}
@media (min-width: 768px) and (max-width: 991.98px) {
  .feature-section-one .single-feature-box.four { padding: 28px 24px; }
}
@media (min-width: 576px) and (max-width: 767.98px) {
  .feature-section-one .single-feature-box.four { padding: 24px 20px; }
}
.feature-section-one .single-feature-box.four .feature-content p {
  width: 60%;
}
@media (min-width: 992px) and (max-width: 1199.98px) {
  .feature-section-one .single-feature-box.four .feature-content p { width: 100%; }
}

.feature-section-one .single-feature-box .feature-content {
  flex: 1 1 60%;
  min-width: 0;           /* 允许 flex 子项收缩，防换行动机 */
  position: relative;
}
.feature-section-one .single-feature-box .feature-content h4 {
  color: var(--theme-main-text);
  font-weight: 700;
  font-size: 22px;
  line-height: 30px;
  margin: 0;
}
@media (min-width: 992px) and (max-width: 1199.98px) {
  .feature-section-one .single-feature-box .feature-content h4 { font-size: 20px; }
}
.feature-section-one .single-feature-box .feature-content p {
  color: var(--theme-sub-text);
  font-weight: 400;
  font-size: 14px;
  line-height: 22px;
  width: 100%;                /* 去掉 80% 的人为横向浪费 */
  margin: 8px 0 18px;
}
/* feature-thumb：固定右侧、尺寸受控、不占过度空间 */
.feature-section-one .single-feature-box .feature-thumb {
  flex: 0 0 auto;
  max-width: 42%;
  min-width: 0;
  text-align: right;
  align-self: center;
}
.feature-section-one .single-feature-box .feature-thumb figure {
  margin: 0;
  display: inline-block;
}
.feature-section-one .single-feature-box .feature-thumb figure img {
  max-width: 100%;
  height: auto;
  max-height: 160px;       /* 限制图片高度，避免挤压文字区 */
  display: block;
  border-radius: 14px;
}
@media (min-width: 992px) and (max-width: 1199.98px) {
  .feature-section-one .single-feature-box .feature-thumb figure img { max-height: 130px; }
}
@media (max-width: 767.98px) {
  .feature-section-one .single-feature-box {
    display: block;         /* 小屏恢复纵向，避免一行过度挤压 */
  }
  .feature-section-one .single-feature-box .feature-thumb {
    max-width: 100%;
    text-align: center;
    margin-top: 16px;
  }
  .feature-section-one .single-feature-box .feature-thumb figure img {
    max-height: 180px;
  }
}

/* feature-list-iteam 尺寸与间距收窄 */
.feature-section-one .single-feature-box .feature-content .feature-list-iteam ul li {
  color: var(--theme-main-text);
  font-weight: 500;
  font-size: 14px;
  line-height: 22px;
  margin-bottom: 10px;
  list-style: none;
  display: flex;
  align-items: center;
}
.feature-section-one .single-feature-box .feature-content .feature-list-iteam ul li::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--theme-gold);
  margin-right: 12px;
  flex-shrink: 0;
}

/* 数字圆圈 */
.feature-section-one .single-feature-box .feature-content .feature-diagram {
  display: flex;
  align-items: center;
  gap: 200px;
  position: absolute;
  right: 50px;
  top: 110px;
}
@media (min-width: 1200px) and (max-width: 1399.98px) {
  .feature-section-one .single-feature-box .feature-content .feature-diagram { right: 0; }
}
@media (max-width: 991.98px) {
  .feature-section-one .single-feature-box .feature-content .feature-diagram { display: none; }
}
.feature-section-one .single-feature-box .feature-content .feature-diagram .feature-circle {
  color: var(--theme-gold-deep);
  font-family: var(--text-font);
  font-weight: 700;
  font-size: 28px;
  background: var(--theme-gold-soft);
  width: 76px;
  height: 76px;
  line-height: 76px;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 22px;
  flex-shrink: 0;
  position: relative;
  border: 1px solid rgba(245, 193, 46, 0.5);
}
.feature-section-one .single-feature-box .feature-content .feature-diagram .feature-circle::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 22px;
  border: 1.5px solid transparent;
  background: linear-gradient(136.7deg, var(--theme-gold) 6.8%, rgba(245, 193, 46, 0.2) 50%, var(--theme-gold) 92.96%) border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: destination-out;
  mask-composite: exclude;
  opacity: 0.8;
}
.feature-section-one .single-feature-box .feature-content .feature-diagram .feature-connections {
  display: flex;
  flex-direction: column;
  gap: 36px;
}
.feature-section-one .single-feature-box .feature-content .feature-diagram .feature-connections .node {
  color: var(--theme-main-text);
  font-family: var(--title-font);
  font-weight: 600;
  font-size: 17px;
  background: var(--theme-gold-soft);
  padding: 10px 28px;
  border-radius: 50px;
  position: relative;
  border: 1px solid rgba(245, 193, 46, 0.35);
}
.feature-section-one .single-feature-box .feature-content .feature-diagram .feature-connections .node.two {
  position: relative;
  right: 40px;
}
.feature-section-one .single-feature-box .feature-content .feature-diagram .feature-diagram-line {
  position: absolute;
  left: 76px;
  top: 20px;
  opacity: 0.6;
}

.feature-section-one .single-feature-box .feature-shape {
  position: absolute;
  top: 0;
  right: 0;
  opacity: 0.3;
}
.feature-section-one .single-feature-box .feature-shape2,
.feature-section-one .single-feature-box .feature-shape3 {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  opacity: 0.15;
}

/* 底部按钮 */
.feature-section-one .feature-btn {
  text-align: right;
}
@media (max-width: 991.98px) {
  .feature-section-one .feature-btn { text-align: left; margin-bottom: 36px; }
}
.feature-section-one .feature-btn a {
  display: inline-block;
  font-size: 18px;
  font-weight: 700;
  font-family: var(--title-font);
  color: var(--theme-main-text);
  background: var(--theme-gold);
  border-radius: 40px;
  padding: 12px 38px;
  transition: all 0.35s ease;
  position: relative;
  z-index: 1;
  overflow: hidden;
  text-decoration: none;
  box-shadow: 0 6px 16px rgba(245, 193, 46, 0.35);
}
.feature-section-one .feature-btn a::before {
  content: "";
  display: block;
  position: absolute;
  inset: 0;
  width: 0;
  background: var(--theme-main-text);
  transition: width 0.35s ease;
  z-index: -1;
}
.feature-section-one .feature-btn a:hover {
  color: var(--theme-gold);
  box-shadow: 0 10px 26px rgba(43, 39, 27, 0.18);
}
.feature-section-one .feature-btn a:hover::before {
  width: 100%;
}
.feature-section-one .feature-btn a i {
  display: inline-block;
  margin-left: 8px;
  transition: transform 0.35s ease;
}
.feature-section-one .feature-btn a:hover i {
  transform: translateX(4px);
}

@media (max-width: 479px) {
  .feature-section-one { padding: 40px 0 60px; }
  .feature-section-one .single-feature-box { padding: 28px 20px; }
  .feature-section-one .single-feature-box .feature-content p { width: 100%; }
  .feature-section-one .single-feature-box.three { padding: 28px 16px; }
  .feature-section-one .single-feature-box.two { padding: 28px 20px 34px; }
  .feature-section-one .sec-title .section-title .title { font-size: 24px; line-height: 32px; }
}