/* this website */
/* flex */
/* font-size */
/* color */
/* margin */
/* padding */
/* 动画 */
/* other */
.whmax {
  width: 100%;
  height: 100%;
}
/* ==========================================
   服务体系花瓣式展示区域
   ========================================== */
.service_integrated {
  background: #f8f9fa;
  position: relative;
  overflow: visible!important;
}
.service_integrated .mtitle {
  margin-bottom: 3rem;
}
/* 花瓣容器 */
.service_flower_container {
  position: relative;
  width: 100%;
  z-index: 5;
  max-width: 1200px;
  height: 70rem;
  overflow: visible!important;
  margin: 0 auto 8rem auto;
}
.flower_petals {
  position: relative;
  width: 100%;
  height: 100%;
}
.flower_petals::after {
  content: 'G';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 8rem;
  height: 8rem;
  background: #ffffff;
  border-radius: 50%;
  box-shadow: 0 0 0 1rem rgba(255, 255, 255, 0.5), 0 1rem 3rem rgba(0, 0, 0, 0.1);
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  font-weight: 900;
  color: #333;
  font-family: enFont;
}
.flower_petals::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 8rem;
  height: 8rem;
  background: transparent;
  border: 2px solid transparent;
  border-radius: 50%;
  z-index: 4;
  animation: flowerRippleShape 2s infinite cubic-bezier(0, 0.2, 0.8, 1), flowerRippleColor 10s infinite step-start;
}
@keyframes flowerRippleShape {
  0% {
    width: 8rem;
    height: 8rem;
    opacity: 0;
    border-width: 0;
    box-shadow: inset 0 0 0 rgba(255, 255, 255, 0);
  }
  5% {
    width: 8rem;
    height: 8rem;
    opacity: 1;
    border-width: 2px;
    box-shadow: inset 0 0 20px rgba(255, 255, 255, 0.5);
  }
  100% {
    width: 28rem;
    height: 28rem;
    opacity: 0;
    border-width: 0;
    box-shadow: inset 0 0 0 rgba(255, 255, 255, 0);
  }
}
@keyframes flowerRippleColor {
  0% {
    border-color: #ff6b6b;
  }
  /* 01 红 */
  20% {
    border-color: #48dbfb;
  }
  /* 02 蓝 */
  40% {
    border-color: #feca57;
  }
  /* 03 橙 */
  60% {
    border-color: #5f27cd;
  }
  /* 04 紫 */
  80% {
    border-color: #1dd1a1;
  }
  /* 05 绿 */
}
/* 花瓣基础样式 - 艺术水滴形 */
.petal {
  position: absolute;
  width: 22rem;
  height: 22rem;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  z-index: 10;
}
.petal .petal_content {
  width: 100%;
  height: 100%;
  border-radius: 50% 50% 50% 0;
  transform: rotate(45deg);
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  box-shadow: 0 1rem 2.5rem rgba(0, 0, 0, 0.1), inset 0 0 0 1px rgba(255, 255, 255, 0.2);
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  padding: 2rem;
}
.petal .petal_content::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.4) 0%, rgba(255, 255, 255, 0) 100%);
  pointer-events: none;
}
.petal .petal_number {
  font-size: 4rem;
  font-weight: 900;
  color: #ffffff;
  font-family: enFont;
  line-height: 1;
  margin-bottom: 1rem;
  text-shadow: 0 0.2rem 0.5rem rgba(0, 0, 0, 0.1);
  position: relative;
  z-index: 2;
  transition: all 0.3s ease;
}
.petal .petal_title {
  text-align: center;
  position: relative;
  z-index: 2;
  transition: all 0.3s ease;
}
.petal .petal_title h3 {
  font-size: 1.6rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1.4;
  margin-bottom: 0.5rem;
}
.petal .petal_title p {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
  line-height: 1.4;
}
.petal .petal_detail_box {
  position: absolute;
  width: 36rem;
  background: #ffffff;
  border-radius: 1rem;
  padding: 2.5rem;
  box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.15);
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s ease;
  z-index: 100;
}
.petal .petal_detail_box h4 {
  font-size: 1.8rem;
  color: #cc0000;
  font-weight: 700;
  margin-bottom: 1.5rem;
  line-height: 1.5;
}
.petal .petal_detail_box p {
  font-size: 1.4rem;
  color: #666;
  line-height: 2.4rem;
  text-align: justify;
}
/* 花瓣位置定位 - 5个花瓣均匀分布成圆形 */
.petal_01 {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(0deg) translateY(-21rem);
  z-index: 60;
}
.petal_01 .petal_content {
  background: linear-gradient(135deg, #ff6b6b 0%, #ee5253 100%);
}
.petal_01 .petal_number,
.petal_01 .petal_title {
  transform: rotate(-45deg);
}
.petal_01 .petal_detail_box {
  top: 0;
  left: 130%;
  transform: rotate(0deg);
  transform-origin: center;
}
.petal_01 .petal_detail_box::before {
  content: '';
  position: absolute;
  left: -0.8rem;
  top: 3rem;
  width: 1.6rem;
  height: 1.6rem;
  background: #fff;
  transform: rotate(45deg);
}
.petal_02 {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(72deg) translateY(-21rem);
  z-index: 50;
}
.petal_02 .petal_content {
  background: linear-gradient(135deg, #48dbfb 0%, #0abde3 100%);
}
.petal_02 .petal_number,
.petal_02 .petal_title {
  transform: rotate(-117deg);
}
.petal_02 .petal_detail_box {
  top: 50%;
  left: 130%;
  transform: translateY(-50%) rotate(-72deg);
  transform-origin: -5rem center;
}
.petal_03 {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(144deg) translateY(-21rem);
  z-index: 40;
}
.petal_03 .petal_content {
  background: linear-gradient(135deg, #feca57 0%, #ff9f43 100%);
}
.petal_03 .petal_number,
.petal_03 .petal_title {
  transform: rotate(-189deg);
}
.petal_03 .petal_detail_box {
  top: 100%;
  left: 100%;
  transform: rotate(-144deg);
  transform-origin: -11rem -4rem;
}
.petal_04 {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(216deg) translateY(-21rem);
  z-index: 30;
}
.petal_04 .petal_content {
  background: linear-gradient(135deg, #5f27cd 0%, #341f97 100%);
}
.petal_04 .petal_number,
.petal_04 .petal_title {
  transform: rotate(-261deg);
}
.petal_04 .petal_detail_box {
  top: 100%;
  right: 100%;
  transform: rotate(-216deg);
  transform-origin: 49rem -6rem;
}
.petal_05 {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(288deg) translateY(-21rem);
  z-index: 20;
}
.petal_05 .petal_content {
  background: linear-gradient(135deg, #1dd1a1 0%, #10ac84 100%);
}
.petal_05 .petal_number,
.petal_05 .petal_title {
  transform: rotate(-333deg);
}
.petal_05 .petal_detail_box {
  top: 50%;
  right: 130%;
  transform: translateY(-50%) rotate(-288deg);
  transform-origin: calc(100% + 5rem) center;
}
/* ==========================================
   花瓣悬停效果
   ========================================== */
.petal:hover {
  z-index: 80;
}
.petal:hover .petal_content {
  transform: rotate(45deg) scale(1.1);
  box-shadow: 0 2rem 5rem rgba(0, 0, 0, 0.2);
}
.petal:hover .petal_detail_box {
  opacity: 1;
  visibility: visible;
}
/* ==========================================
   MVF 营销模型说明区域
   ========================================== */
.mvf_cards {
  display: flex;
  gap: 3rem;
  justify-content: center;
  align-items: stretch;
}
.mvf_card {
  flex: 1;
  max-width: 38rem;
  background: #ffffff;
  border-radius: 1.6rem;
  padding: 3.5rem 3rem;
  box-shadow: 0 0.8rem 2.4rem rgba(0, 0, 0, 0.08);
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  position: relative;
  overflow: hidden;
}
.mvf_card::before {
  content: '';
  position: absolute;
  top: -5rem;
  right: -5rem;
  width: 15rem;
  height: 15rem;
  border-radius: 50%;
  opacity: 0.1;
  transition: all 0.4s ease;
}
.mvf_card .mvf_icon {
  width: 8rem;
  height: 8rem;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 3.6rem;
  font-weight: 900;
  font-family: enFont;
  color: #ffffff;
  margin-bottom: 2.5rem;
  box-shadow: 0 0.4rem 1.6rem rgba(0, 0, 0, 0.15);
  transition: all 0.3s ease;
  position: relative;
  z-index: 2;
}
.mvf_card .mvf_info {
  position: relative;
  z-index: 2;
}
.mvf_card .mvf_info h4 {
  font-size: 2rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 1.5rem;
  line-height: 1.5;
  transition: all 0.3s ease;
}
.mvf_card .mvf_info p {
  font-size: 1.5rem;
  color: #666;
  line-height: 2.4rem;
  text-align: justify;
}
.mvf_card:hover {
  transform: translateY(-1rem);
  box-shadow: 0 1.6rem 4rem rgba(0, 0, 0, 0.15);
}
.mvf_card:hover::before {
  transform: scale(1.2);
  opacity: 0.15;
}
.mvf_card:hover .mvf_icon {
  transform: scale(1.1) rotate(5deg);
}
.mvf_card:hover .mvf_info h4 {
  color: #cc0000;
}
.mvf_m::before {
  background: #cc0000;
}
.mvf_m .mvf_icon {
  background: linear-gradient(135deg, #cc0000 0%, #e74c3c 100%);
}
.mvf_v::before {
  background: #00B050;
}
.mvf_v .mvf_icon {
  background: linear-gradient(135deg, #00B050 0%, #40c057 100%);
}
.mvf_f::before {
  background: #ff922b;
}
.mvf_f .mvf_icon {
  background: linear-gradient(135deg, #ff922b 0%, #ff8c00 100%);
}
/* 响应式显示控制 */
.pc_show {
  display: block;
}
.mobile_show {
  display: none;
}
@media screen and (max-width: 768px) {
  .pc_show {
    display: none !important;
  }
  .mobile_show {
    display: block !important;
  }
}
/* ==========================================
   服务体系移动端 - 极光科技感版手风琴设计 (优化版)
   ========================================== */
.mobile_service_flower {
  padding: 0 1.5rem 6rem 1.5rem;
}
.mobile_service_flower .mserv_list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.mobile_service_flower .mserv_item {
  background: #ffffff;
  border-radius: 2rem;
  box-shadow: 0 0.5rem 1.5rem rgba(0, 0, 0, 0.03);
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.02);
  transition: all 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
  position: relative;
  z-index: 10;
}
.mobile_service_flower .mserv_item[data-num="01"] {
  --item-clr: #ff4757;
  --item-clr-end: #ff6b81;
  --item-clr-glow: rgba(255, 71, 87, 0.25);
}
.mobile_service_flower .mserv_item[data-num="02"] {
  --item-clr: #2f3542;
  --item-clr-end: #57606f;
  --item-clr-glow: rgba(47, 53, 66, 0.25);
}
.mobile_service_flower .mserv_item[data-num="03"] {
  --item-clr: #ffa502;
  --item-clr-end: #ff7f50;
  --item-clr-glow: rgba(255, 165, 2, 0.25);
}
.mobile_service_flower .mserv_item[data-num="04"] {
  --item-clr: #5f27cd;
  --item-clr-end: #341f97;
  --item-clr-glow: rgba(95, 39, 205, 0.25);
}
.mobile_service_flower .mserv_item[data-num="05"] {
  --item-clr: #2ed573;
  --item-clr-end: #1dd1a1;
  --item-clr-glow: rgba(46, 213, 115, 0.25);
}
.mobile_service_flower .mserv_item .mserv_num {
  color: var(--item-clr);
  opacity: 0.6;
}
.mobile_service_flower .mserv_item.active {
  border-color: var(--item-clr);
  background: #fff;
  box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.08), 0 0.5rem 2rem var(--item-clr-glow);
  transform: translateY(-0.5rem);
}
.mobile_service_flower .mserv_item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 0.4rem;
  background: linear-gradient(to right, var(--item-clr), var(--item-clr-end));
  z-index: 10;
}
.mobile_service_flower .mserv_item.active .mserv_head .mserv_num {
  background: linear-gradient(135deg, var(--item-clr) 0%, var(--item-clr-end) 100%);
  color: #fff !important;
  opacity: 1;
  transform: scale(1.1);
  box-shadow: 0 0.5rem 1.5rem var(--item-clr-glow);
}
.mobile_service_flower .mserv_item.active .mserv_head .mserv_title h3 {
  color: var(--item-clr);
}
.mobile_service_flower .mserv_item.active .mserv_head .mserv_arrow {
  background: var(--item-clr);
  color: #fff;
  transform: rotate(90deg);
}
.mobile_service_flower .mserv_item.active .mserv_body {
  opacity: 1;
  transform: translateY(0);
}
.mobile_service_flower .mserv_item.active::after {
  opacity: 0.06;
  transform: scale(1.1) translate(5%, 5%);
}
.mobile_service_flower .mserv_item::after {
  content: attr(data-num);
  position: absolute;
  right: -1rem;
  bottom: -2rem;
  font-size: 15rem;
  font-weight: 900;
  color: var(--item-clr);
  opacity: 0.01;
  font-family: enFont;
  pointer-events: none;
  z-index: 1;
  transition: all 0.6s ease;
}
.mobile_service_flower .mserv_head {
  padding: 2.5rem 2rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  z-index: 5;
}
.mobile_service_flower .mserv_head .mserv_num {
  width: 5.6rem;
  height: 5.6rem;
  background: #f8f9fa;
  border-radius: 1.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.4rem;
  font-weight: 900;
  font-family: enFont;
  flex-shrink: 0;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.mobile_service_flower .mserv_head .mserv_title {
  flex: 1;
}
.mobile_service_flower .mserv_head .mserv_title h3 {
  font-size: 2.2rem;
  font-weight: 800;
  color: #333;
  margin-bottom: 0.5rem;
  line-height: 1.3;
  transition: color 0.3s ease;
}
.mobile_service_flower .mserv_head .mserv_title p {
  font-size: 1.6rem;
  color: #999;
  line-height: 1.4;
}
.mobile_service_flower .mserv_head .mserv_arrow {
  width: 3.2rem;
  height: 3.2rem;
  background: #f0f2f5;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: #ccc;
  transition: all 0.4s ease;
}
.mobile_service_flower .mserv_body {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 0 2rem;
  position: relative;
  z-index: 5;
  overflow: hidden;
}
.mobile_service_flower .mserv_body .mserv_content {
  min-height: 0;
  font-size: 1.7rem;
  line-height: 1.8;
  color: #666;
  text-align: justify;
  border-top: 1px solid rgba(0, 0, 0, 0.05);
  padding: 0 0 0rem 0;
  opacity: 0;
  transform: translateY(1rem);
  transition: all 0.4s ease;
}
.mobile_service_flower .mserv_item.active .mserv_body {
  grid-template-rows: 1fr;
}
.mobile_service_flower .mserv_item.active .mserv_body .mserv_content {
  opacity: 1;
  font-size: 1.8rem;
  transform: translateY(0);
  transition-delay: 0.1s;
  padding: 2rem;
}
/* ==========================================
   响应式设计 - 移动端适配
   ========================================== */
@media screen and (max-width: 768px) {
  .service_integrated .mtitle {
    margin-bottom: 4rem;
  }
  .service_integrated .mtitle .mtitle_h2 {
    font-size: 3rem;
  }
  .service_integrated .mtitle .mtitle_p {
    font-size: 2rem;
  }
  /* 移除旧的移动端花瓣适配代码 */
  /* MVF卡片改为单列布局 */
  .mvf_explain_section {
    padding: 0 0rem 4rem 0rem;
  }
  .mvf_explain_section .mvf_explain_title {
    font-size: 2.4rem;
    margin-bottom: 3rem;
  }
  .mvf_cards {
    flex-direction: column;
    gap: 2rem;
  }
  .mvf_card {
    max-width: 100%;
    padding: 3rem 2.5rem;
  }
  .mvf_card .mvf_icon {
    width: 7rem;
    height: 7rem;
    font-size: 3.2rem;
    margin-bottom: 2rem;
  }
  .mvf_card .mvf_info h4 {
    font-size: 1.9rem;
  }
  .mvf_card .mvf_info p {
    font-size: 1.5rem;
    line-height: 2.4rem;
  }
}
/* 平板端适配 */
@media screen and (min-width: 769px) and (max-width: 1024px) {
  .service_flower_container {
    max-width: 900px;
    height: 60rem;
  }
  .petal {
    width: 18rem;
    height: 18rem;
  }
  .petal .petal_content {
    padding: 1.5rem;
  }
  .petal .petal_number {
    font-size: 3.5rem;
  }
  .petal .petal_title h3 {
    font-size: 1.4rem;
  }
  .petal .petal_detail_box {
    width: 30rem;
    padding: 2rem;
  }
  .petal_01 {
    transform: translate(-50%, -50%) rotate(0deg) translateY(-20rem);
  }
  .petal_02 {
    transform: translate(-50%, -50%) rotate(72deg) translateY(-20rem);
  }
  .petal_03 {
    transform: translate(-50%, -50%) rotate(144deg) translateY(-20rem);
  }
  .petal_04 {
    transform: translate(-50%, -50%) rotate(216deg) translateY(-20rem);
  }
  .petal_05 {
    transform: translate(-50%, -50%) rotate(288deg) translateY(-20rem);
  }
}
/* ==========================================
   时间轴案例展示区域
   ========================================== */
.service_case_timeline {
  background: #ffffff;
  position: relative;
  padding: 6rem 2rem 8rem 2rem;
}
.service_case_timeline .mtitle {
  margin-bottom: 5rem;
}
/* 分类导航 - 横向展示 */
.case_timeline_nav {
  max-width: 800px;
  margin: 0 auto 4rem auto;
  background: #ffffff;
  border-radius: 10rem;
  box-shadow: 0 0.8rem 2.4rem rgba(0, 0, 0, 0.12);
  padding: 1rem;
  display: flex;
  flex-direction: row;
  gap: 1rem;
  z-index: 50;
}
.case_timeline_nav .nav_item {
  flex: 1;
  min-width: 0;
  height: 6rem;
  border-radius: 8rem;
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  gap: 0.8rem;
  box-shadow: 0 0.2rem 0.8rem rgba(0, 0, 0, 0.08);
}
.case_timeline_nav .nav_item i {
  font-size: 3rem;
  color: #999;
  transition: all 0.3s ease;
}
.case_timeline_nav .nav_item span {
  white-space: nowrap;
  font-size: 1.4rem;
  font-weight: 600;
  color: #666;
  transition: all 0.3s ease;
}
.case_timeline_nav .nav_item:hover {
  transform: translateY(-0.3rem);
  box-shadow: 0 0.6rem 1.6rem rgba(0, 0, 0, 0.15);
}
.case_timeline_nav .nav_item.active {
  background: linear-gradient(135deg, #cc0000 0%, #9c27b0 100%);
  box-shadow: 0 0.6rem 2rem rgba(204, 0, 0, 0.4);
}
.case_timeline_nav .nav_item.active i,
.case_timeline_nav .nav_item.active span {
  color: #ffffff;
}
.case_timeline_nav .nav_item.active:hover {
  transform: translateY(-0.3rem) scale(1.05);
}
/* 时间轴容器 */
.timeline_container {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  padding: 4rem 0;
  display: none;
}
.timeline_container.active {
  display: block;
}
.timeline_container .timeline_item {
  transform: translateY(-15rem);
}
.timeline_container .timeline_item:nth-child(2) {
  transform: translateY(0);
}
/* 时间轴线 */
.timeline_line {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 0.4rem;
  background: linear-gradient(180deg, #cc0000 0%, #e74c3c 30%, #9c27b0 70%, #3b82f6 100%);
  transform: translateX(-50%);
  border-radius: 0.2rem;
  box-shadow: 0 0 1rem rgba(204, 0, 0, 0.3);
  z-index: 1;
}
/* 时间轴项目 */
.timeline_item {
  position: relative;
  margin-bottom: 8rem;
  display: flex;
  align-items: center;
  z-index: 30;
}
.timeline_item:last-child {
  margin-bottom: 0;
}
.timeline_item.left {
  justify-content: flex-start;
  padding-right: 52%;
}
.timeline_item.left .timeline_node {
  z-index: 30;
  right: calc(50% - 1.2rem);
}
.timeline_item.right {
  justify-content: flex-end;
  padding-left: 52%;
}
.timeline_item.right .timeline_node {
  z-index: 30;
  left: calc(50% - 1.2rem);
}
/* 时间轴节点 */
.timeline_node {
  position: absolute;
  width: 2.4rem;
  height: 2.4rem;
  background: linear-gradient(135deg, #cc0000 0%, #e74c3c 100%);
  border-radius: 50%;
  border: 0.4rem solid #ffffff;
  box-shadow: 0 0.4rem 1.2rem rgba(204, 0, 0, 0.4);
  z-index: 30;
  animation: pulse 2s ease-in-out infinite;
}
.timeline_node::after {
  content: '';
  z-index: 30;
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: inherit;
  animation: ripple 2s ease-in-out infinite;
}
@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.15);
  }
}
@keyframes ripple {
  0% {
    transform: scale(1);
    opacity: 1;
  }
  100% {
    transform: scale(2);
    opacity: 0;
  }
}
/* 时间轴案例卡片 - 上下结构 */
.timeline_case_card {
  background: #ffffff;
  border-radius: 1.6rem;
  overflow: hidden;
  box-shadow: 0 0.8rem 2.4rem rgba(0, 0, 0, 0.1);
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  display: flex;
  flex-direction: column;
  width: 100%;
}
.timeline_case_card:hover {
  box-shadow: 0 1.6rem 4rem rgba(0, 0, 0, 0.18);
  transform: translateY(-0.5rem);
}
.timeline_case_card:hover .case_info h4[data-href]:not([data-href=""]):not([data-href=" "]) {
  color: #800000 !important;
  text-decoration: underline !important;
}
.timeline_case_card:hover .case_info h4[data-href]:not([data-href=""]):not([data-href=" "])::after {
  opacity: 1 !important;
  transform: translateX(0) !important;
}
/* 封面图区域 */
.case_cover {
  position: relative;
  width: 100%;
  height: 34rem;
  overflow: hidden;
  cursor: pointer;
}
.case_cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.case_cover .play_overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.3);
  display: none;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 10;
}
.case_cover .play_overlay .play_icon {
  width: 8rem;
  height: 8rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: scale(0.8);
  transition: all 0.3s ease;
  background: linear-gradient(135deg, #cc0000 0%, #9c27b0 100%);
  box-shadow: 0 0.8rem 2.4rem rgba(204, 0, 0, 0.5);
}
.case_cover .play_overlay .play_icon i {
  font-size: 3rem;
  color: #ffffff;
}
.case_cover:hover img {
  transform: scale(1.05);
}
.case_cover:hover[data-video]:not([data-video=""]):not([data-video="[]"]) .play_overlay {
  display: flex !important;
  opacity: 1;
  visibility: visible;
}
.case_cover:hover[data-video]:not([data-video=""]):not([data-video="[]"]) .play_overlay .play_icon {
  transform: scale(1);
}
/* 案例信息区域 */
.case_info {
  padding: 3rem;
}
.case_info h4 {
  font-size: 2.2rem;
  font-weight: 700;
  color: #cc0000;
  margin-bottom: 2rem;
  line-height: 1.5;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  position: relative;
  cursor: default;
}
.case_info h4[data-href]:not([data-href=""]):not([data-href=" "]) {
  cursor: pointer;
}
.case_info h4[data-href]:not([data-href=""]):not([data-href=" "]):hover {
  color: #800000;
  text-decoration: underline;
}
.case_info h4[data-href]:not([data-href=""]):not([data-href=" "]):hover::after {
  opacity: 1;
  transform: translateX(0);
}
.case_info .case_detail {
  margin-bottom: 1.8rem;
}
.case_info .case_detail:last-child {
  margin-bottom: 0;
}
.case_info .case_detail h5 {
  font-size: 1.6rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 0.8rem;
  line-height: 1.7;
}
.case_info .case_detail p {
  font-size: 1.6rem;
  color: #666;
  line-height: 2.2rem;
  text-align: justify;
}
/* ==========================================
   响应式设计 - 时间轴案例展示
   ========================================== */
@media screen and (max-width: 768px) {
  .service_case_timeline {
    padding: 4rem 1.5rem 6rem 1.5rem;
  }
  .service_case_timeline .mtitle {
    margin-bottom: 3rem;
  }
  .service_case_timeline .mtitle .mtitle_h2 {
    font-size: 3rem;
  }
  .service_case_timeline .mtitle .mtitle_p {
    font-size: 2rem;
  }
  /* 分类导航移动端样式 */
  .case_timeline_nav {
    max-width: 100%;
    padding: 0.8rem;
    margin-bottom: 3rem;
  }
  .case_timeline_nav .nav_item {
    height: 4rem;
    padding: 1rem 0.2rem;
  }
  .case_timeline_nav .nav_item i {
    font-size: 2.4rem;
  }
  .case_timeline_nav .nav_item span {
    font-size: 1.8rem;
  }
  .case_timeline_nav .nav_item:hover {
    transform: none;
  }
  .case_timeline_nav .nav_item.active:hover {
    transform: scale(1.02);
  }
  /* 时间轴容器 */
  .timeline_container {
    padding: 2rem 0;
  }
  /* 时间轴线移到左侧 */
  .timeline_line {
    left: 2rem;
    transform: none;
  }
  /* 时间轴项目改为单列 */
  .timeline_item {
    padding: 0 0 0 5rem !important;
    margin-bottom: 4rem;
  }
  .timeline_item.left,
  .timeline_item.right {
    justify-content: flex-start;
    padding-left: 5rem !important;
    padding-right: 0 !important;
  }
  .timeline_item .timeline_node {
    left: 1.2rem !important;
    right: auto !important;
    width: 1.6rem;
    height: 1.6rem;
  }
  /* 案例卡片移动端样式 */
  .timeline_case_card {
    border-radius: 1.2rem;
  }
  .case_cover {
    height: 22rem;
  }
  .case_cover .play_overlay .play_icon {
    width: 6rem;
    height: 6rem;
  }
  .case_cover .play_overlay .play_icon i {
    font-size: 2.4rem;
  }
  .case_info {
    padding: 2rem;
  }
  .case_info h4 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
  }
  .case_info .case_detail {
    margin-bottom: 1.2rem;
  }
  .case_info .case_detail h5 {
    font-size: 1.4rem;
  }
  .case_info .case_detail p {
    font-size: 1.3rem;
    line-height: 2rem;
  }
  .timeline_container .timeline_item {
    transform: translateY(0);
  }
}
/* 平板端适配 - 时间轴 */
@media screen and (min-width: 769px) and (max-width: 1024px) {
  .case_timeline_nav {
    max-width: 700px;
  }
  .case_timeline_nav .nav_item {
    height: 9rem;
  }
  .case_timeline_nav .nav_item i {
    font-size: 2.6rem;
  }
  .case_timeline_nav .nav_item span {
    font-size: 1.3rem;
  }
  .timeline_case_card .case_cover {
    height: 26rem;
  }
  .timeline_case_card .case_info {
    padding: 2.5rem;
  }
  .timeline_case_card .case_info h4 {
    font-size: 2rem;
    margin-bottom: 1.8rem;
  }
  .timeline_case_card .case_info .case_detail h5 {
    font-size: 1.4rem;
  }
  .timeline_case_card .case_info .case_detail p {
    font-size: 1.3rem;
    line-height: 2rem;
  }
}
@keyframes fadeInUp {
  0% {
    opacity: 0;
    transform: translateY(30px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}
.ani {
  opacity: 0;
}
.ani.animated {
  animation: fadeInUp 1s ease-out forwards;
}
.ani.delay-0-3.animated {
  animation-delay: 0.3s;
}
.ani.delay-0-6.animated {
  animation-delay: 0.6s;
}
.ani.delay-0-9.animated {
  animation-delay: 0.9s;
}