@media screen and (max-width: 1920px) {
  html, body {
    font-size: 16px;
  }
}

@media screen and (max-width: 1872px) {
  html, body {
    font-size: 15.6px;
  }
}

@media screen and (max-width: 1824px) {
  html, body {
    font-size: 15.2px;
  }
}

@media screen and (max-width: 1776px) {
  html, body {
    font-size: 14.8px;
  }
}

@media screen and (max-width: 1728px) {
  html, body {
    font-size: 14.4px;
  }
}

@media screen and (max-width: 1680px) {
  html, body {
    font-size: 14px;
  }
}

@media screen and (max-width: 1632px) {
  html, body {
    font-size: 13.6px;
  }
}

@media screen and (max-width: 1584px) {
  html, body {
    font-size: 13.2px;
  }
}

@media screen and (max-width: 1536px) {
  html, body {
    font-size: 12.8px;
  }
}

@media screen and (max-width: 1488px) {
  html, body {
    font-size: 12.4px;
  }
}

@media screen and (max-width: 1440px) {
  html, body {
    font-size: 12px;
  }
}

@media screen and (max-width: 1395px) {
  html, body {
    font-size: 11.6px;
  }
}

@media screen and (max-width: 1344px) {
  html, body {
    font-size: 11.2px;
  }
}

@media screen and (max-width: 1296px) {
  html, body {
    font-size: 10.8px;
  }
}

@media screen and (max-width: 1248px) {
  html, body {
    font-size: 10.4px;
  }
}

@media screen and (max-width: 1200px) {
  html, body {
    font-size: 10px;
  }
}

@media screen and (max-width: 1115px) {
  html, body {
    font-size: 9.6px;
  }
}

@media screen and (max-width: 1104px) {
  html, body {
    font-size: 9.2px;
  }
}

@media screen and (max-width: 1056px) {
  html, body {
    font-size: 8.8px;
  }
}

@media screen and (max-width: 1008px) {
  html, body {
    font-size: 8.4px;
  }
}

@media screen and (max-width: 960px) {
  html, body {
    font-size: 8px;
  }
}

@media screen and (max-width: 912px) {
  html, body {
    font-size: 7.6px;
  }
}

@media screen and (max-width: 864px) {
  html, body {
    font-size: 7.2px;
  }
}

@media screen and (max-width: 816px) {
  html, body {
    font-size: 6.8px;
  }
}

@media screen and (max-width: 768px) {
  html, body {
    font-size: 6.4px;
  }
}

@media screen and (max-width: 720px) {
  html, body {
    font-size: 6px;
  }
}

@media screen and (max-width: 672px) {
  html, body {
    font-size: 5.6px;
  }
}

@media screen and (max-width: 624px) {
  html, body {
    font-size: 5.2px;
  }
}

@media screen and (max-width: 576px) {
  html, body {
    font-size: 4.8px;
  }
}

@media screen and (max-width: 528px) {
  html, body {
    font-size: 4.4px;
  }
}

@media screen and (max-width: 480px) {
  html, body {
    font-size: 4px;
  }
}

@media screen and (max-width: 432px) {
  html, body {
    font-size: 3.6px;
  }
}

@media screen and (max-width: 384px) {
  html, body {
    font-size: 3.2px;
  }
}

@media screen and (max-width: 336px) {
  html, body {
    font-size: 2.8px;
  }
}

@media screen and (max-width: 288px) {
  html, body {
    font-size: 2.4px;
  }
}

/* 第 71 轮：首屏大图带 .mypulse（keyframes 从 scale(1.1) 收到 scale(1)），
   放大那一瞬会把整页撑宽 3%~10%，产生横向滚动条（1920→1988、375→388）。
   overflow:hidden 裁掉溢出部分，视觉与动画完全不变。 */
main .loop_ban {
  width: 100%;
  overflow: hidden;
}

main .loop_ban .swiper {
  width: 100%;
}

main .loop_ban .swiper .picture {
  display: block;
  font-size: 0;
}

main .loop_ban .swiper .picture img {
  display: block;
}

main .public_tit {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: 2.4rem;
  margin: 0 auto;
}

main .public_tit .tit_bj_iner {
  width: 100%;
  font-size: .875em;
  font-family: Source Han Sans CN, Source Han Sans CN-Bold;
  font-weight: 700;
  text-align: center;
  color: #000000;
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  margin-bottom: .68em;
  position: relative;
}

main .public_tit .tit_bj_iner span {
  color: #365BC9;
}

main .public_tit .fz_strip {
  width: 1.31em;
  height: .125em;
  background: #38be86;
  margin: auto;
}

main .public_tit .tit_inner {
  width: 89.63%;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: .759em;
}

main .public_tit .tit_inner .tit_left {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

main .public_tit .tit_inner .tit_left div {
  width: 62.34%;
  opacity: 0.93;
  font-size: .416em;
  font-family: Source Han Sans SC, Source Han Sans SC-Normal;
  font-weight: normal;
  text-align: center;
  color: #000000;
  line-height: 1.5em;
  letter-spacing: 2px;
}

main .nav_key_word {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 2px solid #f5f5f5;
  font-size: 1rem;
}

main .nav_key_word section {
  width: 89.63%;
  padding-top: 1.2em;
  padding-bottom: .8em;
  display: flex;
  align-items: center;
  position: relative;
  z-index: 20;
}

main .nav_key_word section .key_word {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

main .nav_key_word section .key_word div {
  margin-bottom: .49em;
  font-size: 1.1em;
  font-family: Source Han Sans SC, Source Han Sans SC-Bold;
  font-weight: 700;
  text-align: left;
  color: #38be86;
}

main .nav_key_word section .key_word div span {
  color: #000000;
}

main .nav_key_word section .key_word ul {
  display: flex;
  align-items: center;
}

main .nav_key_word section .key_word ul li {
  margin-right: 3em;
}

main .nav_key_word section .key_word ul li a {
  opacity: 0.7;
  font-size: 1em;
  font-family: Source Han Sans SC, Source Han Sans SC-Normal;
  font-weight: normal;
  text-align: left;
  color: #868686;
  line-height: 1.5em;
}

/* 蓝色站内搜索块已按用户要求整块删除（含蓝底、白框、文字、图标） */


main .problem {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  /* 原深蓝底（#071836→#0F3671）上的黑字对比度仅 1.2~1.8:1，改为浅色品牌底 */
  background-image: url(../images/index/bg_problem_light.jpg);
  background-size: cover;
  background-position: bottom;
  background-repeat: no-repeat;
  background-color: #f6f9ff;
  font-size: 1.1em;
  padding-top: 4.77em;
  padding-bottom: 6.12em;
}

/* 标题改为深蓝墨色，浅底上对比度 >14:1 */
main .problem .public_tit .tit_bj_iner {
  color: #10233F;
}

/* 强调词：深底时用的 #365BC9 在浅底上偏灰，换成品牌亮蓝并加粗 */
main .problem .public_tit .tit_bj_iner span {
  font-weight: 700;
  font-size: 1.2em;
  color: #1B54D8;
}

/* 副标题同步改色，去掉原来在深底上才需要的半透明 */
main .problem .public_tit .tit_inner .tit_left div {
  opacity: 1;
  color: #46586F;
  font-weight: 500;
}

/* 分隔条加粗提亮，浅底上细线容易消失 */
main .problem .public_tit .fz_strip {
  width: 2.2em;
  height: .16em;
  background: linear-gradient(90deg, #1B54D8, #38be86);
}

main .problem .problem_list {
  width: 89.63%;
  display: flex;
  flex-direction: row-reverse;
  margin-top: 4.45em;
}

main .problem .problem_list ul {
  width: 60.37%;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  justify-content: space-between;
}

main .problem .problem_list ul li {
  height: 4.54em;
  background: linear-gradient(132deg, #ffffff, #fbfdff 45%, #f4f8ff 97%);
  border-radius: .18em;
  /* 浅底上原来的浅灰投影几乎看不见，改用蓝色调实体投影 + 细边框托起层次 */
  border: 1px solid rgba(27, 84, 216, .10);
  box-shadow: 0 4px 18px rgba(16, 42, 90, .10), 0 1px 2px rgba(16, 42, 90, .06);
  margin-bottom: 1.13em;
  position: relative;
}

main .problem .problem_list ul li:nth-child(odd) {
  width: 47.64%;
  margin-left: 3.09em;
}

main .problem .problem_list ul li:nth-child(even) {
  width: 33.39%;
  margin-right: 2.45em;
}

main .problem .problem_list ul li:hover {
  background: linear-gradient(132deg, #4271ee, #86a5f6 97%);
}

main .problem .problem_list ul li:hover a div {
  background-image: url(../images/index/xunum_02.png);
  color: #385dbe;
}

main .problem .problem_list ul li:hover a span {
  color: #ffffff;
}

main .problem .problem_list ul li:nth-child(1)::after, main .problem .problem_list ul li:nth-child(5)::after {
  position: absolute;
  content: "";
  top: 1.5em;
  left: -3.09em;
  width: 3.09em;
  height: 5.68em;
  background-image: url(../images/index/right_btn_img04.png);
  background-size: 100%;
  background-position: center;
  background-repeat: no-repeat;
}

main .problem .problem_list ul li:nth-child(2)::before, main .problem .problem_list ul li:nth-child(4)::before, main .problem .problem_list ul li:nth-child(6)::before, main .problem .problem_list ul li:nth-child(8)::before {
  position: absolute;
  content: "";
  top: .9em;
  left: -3.27em;
  width: 3.27em;
  height: 1.18em;
  background-image: url(../images/index/right_btn_img03.png);
  background-size: 100%;
  background-position: center;
  background-repeat: no-repeat;
}

main .problem .problem_list ul li:nth-child(4)::after {
  position: absolute;
  content: "";
  top: 1.5em;
  right: -3.09em;
  width: 3.09em;
  height: 5.68em;
  background-image: url(../images/index/right_btn_img05.png);
  background-size: 100%;
  background-position: center;
  background-repeat: no-repeat;
}

main .problem .problem_list ul li:nth-child(4) a span {
  -webkit-line-clamp: 3;
}

main .problem .problem_list ul li:last-child:hover {
  background: linear-gradient(132deg, #ffffff, #f4f8ff 97%);
}

main .problem .problem_list ul li:last-child:hover a div {
  background-image: url(../images/index/xunum_03.png);
  color: #ffffff;
}

main .problem .problem_list ul li:last-child:hover a span {
  color: #0C7A4F;
}

main .problem .problem_list ul li:last-child a div {
  background-image: url(../images/index/xunum_03.png);
}

main .problem .problem_list ul li:last-child a span {
  /* 原 #38BE86 在白卡上仅 2.37:1，加深到 5.37:1 */
  color: #0C7A4F;
}

main .problem .problem_list ul li a {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

main .problem .problem_list ul li a div {
  width: 1.86em;
  height: 1.86em;
  background-image: url(../images/index/xunum_01.png);
  background-size: 100%;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1em;
  font-family: Source Han Sans SC, Source Han Sans SC-Medium;
  font-weight: 500;
  text-align: left;
  color: #ffffff;
  line-height: 1.18em;
  margin-right: 1.04em;
}

main .problem .problem_list ul li a span {
  width: 77%;
  font-size: .9em;
  font-family: Source Han Sans SC, Source Han Sans SC-Normal;
  font-weight: normal;
  text-align: left;
  color: #000000;
  line-height: 1.18em;
  display: inline-block;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

main .finally {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: 1.1rem;
  padding-top: 4.727em;
  background-image: url(../images/index/JHC.png);
  background-size: 82.6%;
  background-position: center;
  background-repeat: no-repeat;
}

main .finally .finally_loop {
  width: 89.63%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  margin-bottom: 6.24em;
}

main .finally .finally_loop .Swiper1 {
  width: 80.766%;
}

main .finally .finally_loop .Swiper1 .swiper-wrapper .swiper-slide {
  width: 100%;
  display: flex;
  align-items: flex-start;
}

main .finally .finally_loop .Swiper1 .swiper-wrapper .swiper-slide img {
  width: 25.98em;
  height: 19.95em;
  display: inline-block;
  margin-right: 5.02em;
}

main .finally .finally_loop .Swiper1 .swiper-wrapper .swiper-slide .finally_inner {
  font-size: 1rem;
  width: 52.09%;
  display: flex;
  flex-direction: column;
}

main .finally .finally_loop .Swiper1 .swiper-wrapper .swiper-slide .finally_inner p {
  margin-top: 1.37em;
  font-size: 1.4em;
  font-family: Source Han Sans CN, Source Han Sans CN-Bold;
  font-weight: 700;
  text-align: left;
  color: #38be86;
  margin-bottom: 2.04rem;
}

main .finally .finally_loop .Swiper1 .swiper-wrapper .swiper-slide .finally_inner .gdt {
  width: 94%;
  height: .15em;
  background-color: rgba(0, 0, 0, 0.22);
  position: relative;
  margin-bottom: 1.92em;
}

main .finally .finally_loop .Swiper1 .swiper-wrapper .swiper-slide .finally_inner .gdt::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  margin: auto;
  width: 16.76%;
  height: 6px;
  background-color: #385dbe;
}

main .finally .finally_loop .Swiper1 .swiper-wrapper .swiper-slide .finally_inner span {
  width: 95.91%;
  display: inline-block;
  opacity: 0.78;
  font-size: 1em;
  font-family: Source Han Sans SC, Source Han Sans SC-Regular;
  font-weight: 400;
  text-align: left;
  color: #000000;
  line-height: 2em;
  letter-spacing: 2.2px;
  margin-bottom: 1.9em;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

main .finally .finally_loop .Swiper1 .swiper-wrapper .swiper-slide .finally_inner a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 26%;
  height: 2.65rem;
  background: linear-gradient(135deg, #6e95f9, #365bc9);
  box-shadow: 0px 3px 10px 0px rgba(56, 93, 190, 0.4);
  font-size: .9em;
  font-family: Source Han Sans SC, Source Han Sans SC-Normal;
  font-weight: normal;
  text-align: left;
  color: #ffffff;
  line-height: 1.4em;
}

main .finally .finally_loop .Swiper1 .swiper-wrapper .swiper-slide .finally_inner a div {
  width: 1.3em;
  height: 1.3em;
  position: relative;
  margin-left: 16.48%;
  background-image: url(../images/index/move_img01.png);
  background-size: 100%;
  background-position: center;
  background-repeat: no-repeat;
}

main .finally .finally_loop .Swiper1 .swiper-wrapper .swiper-slide-active img {
  animation: img01s 1s ease;
}

@keyframes img01s {
  0% {
    transform: translateX(-50px);
  }
  100% {
    transform: translateX(0px);
  }
}

main .finally .finally_loop .Swiper2 {
  width: 19.233%;
  height: 36.36em;
  background-image: url(../images/index/loop_bj_img01.png);
  background-size: contain;
  background-position: left;
  background-repeat: no-repeat;
  position: relative;
}

main .finally .finally_loop .Swiper2 .swiper-wrapper {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  width: 100%;
  height: 100%;
  justify-content: center;
}

main .finally .finally_loop .Swiper2 .swiper-wrapper .swiper-slide {
  width: 4.9em;
  height: 4.9em;
  margin: .45em 0;
  margin-left: 41%;
}

main .finally .finally_loop .Swiper2 .swiper-wrapper .swiper-slide:hover {
  cursor: pointer;
}

main .finally .finally_loop .Swiper2 .swiper-wrapper .swiper-slide:nth-child(3) {
  margin: 2.27em 0;
  margin-left: 51%;
}

main .finally .finally_loop .Swiper2 .swiper-wrapper .swiper-slide:nth-child(1), main .finally .finally_loop .Swiper2 .swiper-wrapper .swiper-slide:nth-child(5) {
  width: 4em;
  height: 4em;
  margin-left: 20.5%;
}

main .finally .finally_loop .Swiper2 .swiper-wrapper .swiper-slide:nth-child(1) div, main .finally .finally_loop .Swiper2 .swiper-wrapper .swiper-slide:nth-child(5) div {
  width: 4em;
  height: 4em;
}

main .finally .finally_loop .Swiper2 .swiper-wrapper .swiper-slide:nth-child(1) div::after, main .finally .finally_loop .Swiper2 .swiper-wrapper .swiper-slide:nth-child(5) div::after {
  width: 4.76em;
  height: 4.76em;
}

main .finally .finally_loop .Swiper2 .swiper-wrapper .swiper-slide:nth-child(1) div img, main .finally .finally_loop .Swiper2 .swiper-wrapper .swiper-slide:nth-child(5) div img {
  width: 4em;
  height: 4em;
}

main .finally .finally_loop .Swiper2 .swiper-wrapper .swiper-slide div {
  width: 4.9em;
  height: 4.9em;
  position: relative;
  transition-duration: 1s;
}

main .finally .finally_loop .Swiper2 .swiper-wrapper .swiper-slide div::after {
  position: absolute;
  z-index: -1;
  content: "";
  width: 5.84em;
  height: 5.84em;
  top: 0;
  bottom: 0;
  right: 50%;
  transform: translateX(50%);
  margin: auto;
  background: #e8eeff;
  border: 2px solid #6086f8;
  border-radius: 50%;
  display: none;
}

main .finally .finally_loop .Swiper2 .swiper-wrapper .swiper-slide div img {
  width: 4.9em;
  height: 4.9em;
  border-radius: 50%;
}

main .finally .finally_loop .Swiper2 .swiper-wrapper .swiper-slide.active div {
  transform: scale(1.07);
}

main .finally .finally_loop .Swiper2 .swiper-wrapper .swiper-slide.active div::after {
  display: block;
  animation: bkbj 1s ease;
}

@keyframes bkbj {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}

main .finally .finally_loop .Swiper2 .swiper-wrapper .swiper-slide-active {
  width: 6.136em;
  height: 6.136em;
  margin: 2.27em 0;
}

main .finally .finally_loop .Swiper2 .swiper-wrapper .swiper-slide-active div {
  width: 6.136em;
  height: 6.136em;
  position: relative;
}

main .finally .finally_loop .Swiper2 .swiper-wrapper .swiper-slide-active div img {
  width: 6.136em;
  height: 6.136em;
}

main .finally .finally_loop .Swiper2 .swiper-wrapper .swiper-slide-active div::after {
  position: absolute;
  z-index: -1;
  content: "";
  width: 7.22em;
  height: 7.22em;
  top: 0;
  bottom: 0;
  right: 50%;
  transform: translateX(50%);
  margin: auto;
  background: #e8eeff;
  border: 2px solid #6086f8;
  border-radius: 50%;
}

main .finally .finally_loop .Swiper2 .page {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

main .finally .finally_loop .Swiper2 .page .swiper-button-prev,
main .finally .finally_loop .Swiper2 .page .swiper-button-next {
  position: static;
  width: 1.45em;
  height: 1.45em;
  background-image: url(../images/index/right_btn_img07.png);
  background-size: 100%;
  background-position: center;
  background-repeat: no-repeat;
  transform: rotate(90deg);
  margin: .22em 0;
}

main .finally .finally_loop .Swiper2 .page .swiper-button-prev::after,
main .finally .finally_loop .Swiper2 .page .swiper-button-next::after {
  content: "";
}

main .finally .finally_loop .Swiper2 .page .swiper-button-prev {
  margin-top: 0;
}

main .finally .notice {
  width: 89.63%;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  margin-bottom: 3.04em;
}

main .finally .notice div {
  width: 1.38em;
  height: 1.38em;
  background-image: url(../images/laba_img02.png);
  background-size: 100%;
  background-position: center;
  background-repeat: no-repeat;
  margin-left: 3.37%;
  margin-right: 1%;
}

main .finally .notice p {
  font-size: 1em;
  font-family: Source Han Sans CN, Source Han Sans CN-Bold;
  font-weight: 700;
  text-align: left;
  color: #365bc9;
  line-height: 1.45em;
}

main .apple_grade {
  width: 100%;
  /* 第 44 轮：深蓝背景改为白底，标题/正文/特性文字同步改深色 */
  background: #ffffff;
  font-size: 1rem;
  padding-top: 6.5em;
  padding-bottom: 6.39em;
  display: flex;
  flex-direction: column;
  align-items: center;
}

main .apple_grade .public_tit {
  font-size: 2.4rem;
}

main .apple_grade .public_tit .tit_bj_iner {
  color: #16223c;
}

main .apple_grade .public_tit .tit_bj_iner::after {
  background: #17a06e;
}

main .apple_grade .public_tit .tit_bj_iner span {
  color: #17a06e;
  font-weight: 600;
  font-size: 1.2em;
}

main .apple_grade .public_tit .tit_inner .tit_left div {
  color: #5c667a;
  /* 第 49 轮：副文案换成「货车隔热膜的核心：合规省油…」共 47 字（原 33 字）。
     原 width: 62.34% 在 1920 下只有 805px，47 字差一点塞不下，末尾「务」孤零零掉到第二行；
     1280 档 em 漂移又把字号压到 10.78px，核心卖点句读不清。放宽到 68% 并给 13px 字号下限。 */
  width: 68%;
  font-size: max(.416em, 13px);
  text-wrap: balance;
}

main .apple_grade .apple_glist {
  margin-top: 6.55em;
  width: 78.59%;
  position: relative;
}

main .apple_grade .apple_glist .app_imgs {
  position: absolute;
  left: 0;
  right: 0;
  /* 第 44 轮：图片换成实拍后高度变小，改为垂直居中并把 top 微调到列表中心，
     避免 flex-end 贴底时底部溢出到下一区块（实测曾溢出 49~73px） */
  top: -7.4em;
  margin: auto;
  /* 由 62.42% 收到 55%，让出左右两列文字的安全区 */
  width: 55%;
  height: 47.1em;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  z-index: 0;
}

main .apple_grade .apple_glist .app_imgs img {
  width: 100%;
  display: inline-block;
}

main .apple_grade .apple_glist ul {
  width: 100%;
  /* 第 44 轮：flex-wrap 在长文案下会把末条挤进中间压住车图，改用 grid 两列严格对齐 */
  display: grid;
  grid-template-columns: auto auto;
  justify-content: space-between;
  align-items: center;
  row-gap: 2.3em;
}

main .apple_grade .apple_glist ul li {
  display: flex;
  align-items: center;
  position: relative;
  z-index: 4;
  justify-self: start;
}

main .apple_grade .apple_glist ul li:nth-child(even) {
  flex-direction: row-reverse;
  justify-self: end;
}

main .apple_grade .apple_glist ul li:nth-child(even) div {
  margin-right: 0;
  margin-left: 1.45em;
}

main .apple_grade .apple_glist ul li:nth-child(even) span {
  align-items: flex-end;
}

main .apple_grade .apple_glist ul li:hover {
  cursor: pointer;
}

main .apple_grade .apple_glist ul li:hover div {
  background-image: url(../images/index/apple_ring_2026.png);
  transform: scale(1.08);
}

main .apple_grade .apple_glist ul li:hover div::after {
  display: flex;
  z-index: -10;
}

main .apple_grade .apple_glist ul li div {
  width: 3.55em;
  height: 4.15em;
  background-image: url(../images/index/apple_ring_2026.png);
  background-size: 100%;
  background-position: center;
  background-repeat: no-repeat;
  margin-right: 1.45em;
  position: relative;
  transition: transform 0.25s ease;
}

main .apple_grade .apple_glist ul li div::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  margin: auto;
  width: 4.65em;
  height: 5.45em;
  background: #17a06e;
  filter: blur(27px);
  display: none;
}

main .apple_grade .apple_glist ul li span {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

main .apple_grade .apple_glist ul li span p {
  font-size: 1em;
  font-family: Source Han Sans SC, Source Han Sans SC-Medium;
  font-weight: 500;
  text-align: left;
  color: #5c667a;
  line-height: 1.5em;
}

/* 每条特性第一行为主标题，白底上用深藏青加重 */
main .apple_grade .apple_glist ul li span p:first-child {
  color: #16223c;
  font-weight: 600;
}

main .precision {
  width: 100%;
  font-size: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 6.07em;
}

main .precision .public_tit .tit_bj_iner span {
  color: #38be86;
  font-size: 1.2em;
  font-weight: 600;
}

main .precision .precision_list {
  width: 89.63%;
  display: flex;
  align-items: center;
  margin-bottom: 8.2em;
  margin-top: 4.15em;
}

main .precision .precision_list:nth-child(odd) {
  flex-direction: row-reverse;
  margin-top: 0;
}

main .precision .precision_list:nth-child(2) {
  box-shadow: 0px 10px 20px 0px rgba(0, 0, 0, 0.04);
}

main .precision .precision_list:hover {
  cursor: pointer;
}

main .precision .precision_list:hover .imgs img {
  transform: scale(1.06);
}

main .precision .precision_list .imgs {
  width: 49.91%;
  height: 28.2em;
  overflow: hidden;
}

main .precision .precision_list .imgs img {
  width: 100%;
  height: 100%;
  transition-duration: 1s;
}

main .precision .precision_list .precision_inner {
  width: 49.91%;
  height: 100%;
}

main .precision .precision_list .precision_inner p {
  font-size: 2.4em;
  font-family: Source Han Sans CN, Source Han Sans CN-Bold;
  font-weight: 700;
  text-align: left;
  color: #38BE86;
  margin-left: 6.98%;
  display: inline-block;
  margin-bottom: 1.87rem;
}

main .precision .precision_list .precision_inner .gdt {
  width: 79.16%;
  height: .15em;
  background-color: rgba(0, 0, 0, 0.22);
  margin-left: 6.98%;
  position: relative;
  margin-bottom: 1.92em;
}

main .precision .precision_list .precision_inner .gdt::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  margin: auto;
  width: 16.76%;
  height: 6px;
  background-color: #385dbe;
}

/*main .precision .precision_list .precision_inner span {
  width: 79.16%;
  display: inline-block;
  margin-left: 6.98%;
  opacity: 0.78;
  font-size: 1em;
  font-family: Source Han Sans SC, Source Han Sans SC-Normal;
  font-weight: normal;
  text-align: left;
  color: #000000;
  line-height: 1.5em;
  margin-bottom: 1.9em;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 7;
  -webkit-box-orient: vertical;
}*/
main .precision .precision_list .precision_inner span p {
  width: 79.16%;
  display: inline-block;
  margin-left: 6.98%;
  opacity: 0.78;
  font-size: 1em;
  font-family: Source Han Sans SC, Source Han Sans SC-Normal;
  font-weight: normal;
  text-align: left;
  color: #000000;
  line-height: 1.5em;
  margin-bottom: 1.9em;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 7;
  -webkit-box-orient: vertical;
}
main .precision .precision_list .precision_inner a {
  margin-left: 6.98%;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 21.14%;
  height: 2.65rem;
  background: linear-gradient(135deg, #6e95f9, #365bc9);
  box-shadow: 0px 3px 10px 0px rgba(56, 93, 190, 0.4);
  font-size: .9em;
  font-family: Source Han Sans SC, Source Han Sans SC-Normal;
  font-weight: normal;
  text-align: left;
  color: #ffffff;
  line-height: 1.4em;
}

main .precision .precision_list .precision_inner a div {
  width: 1.3em;
  height: 1.3em;
  position: relative;
  margin-left: 16.48%;
  background-image: url(../images/move_img01.png);
  background-size: 100%;
  background-position: center;
  background-repeat: no-repeat;
}

main .quality {
  width: 100%;
  background-image: url(../images/index/bg_quality_light.jpg);
  background-color: #F4F8FF;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  padding-bottom: 4.6em;
  padding-top: 9.12em;
}

main .quality .qua_box {
  width: 89.63%;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  perspective: 1200px;
}

main .quality .qua_box .quality_q {
  width: 38.75%;
  display: flex;
  flex-direction: column;
}

main .quality .qua_box .quality_q .title {
  font-size: 2.4em;
  font-family: Source Han Sans CN, Source Han Sans CN-Bold;
  font-weight: 700;
  text-align: left;
  color: #10233F;
  display: flex;
  margin-bottom: 1.87rem;
}

main .quality .qua_box .quality_q .title div {
  color: #0C7A4F;
}

main .quality .qua_box .quality_q .gdt {
  width: 100%;
  height: .15em;
  background-color: rgba(16, 35, 63, 0.16);
  position: relative;
  margin-bottom: 1.92em;
}

main .quality .qua_box .quality_q .gdt::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  margin: auto;
  width: 16.76%;
  height: .3em;
  background-color: #0C7A4F;
}

main .quality .qua_box .quality_q span {
  width: 100%;
  display: inline-block;
  opacity: 1;
  font-size: 1em;
  font-family: Source Han Sans SC, Source Han Sans SC-Normal;
  font-weight: normal;
  text-align: left;
  color: #46586F;
  line-height: 1.5em;
  margin-bottom: 4.59em;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 6;
  -webkit-box-orient: vertical;
}

main .quality .qua_box .quality_q ul {
  width: 90.10%;
  display: flex;
}

main .quality .qua_box .quality_q ul li {
  width: 41.93%;
  margin-right: 3.694em;
}

main .quality .qua_box .quality_q ul li:last-child {
  margin-right: 0;
}

main .quality .qua_box .quality_q ul li div {
  min-width: 2.438em;
  max-width: 3.55em;
  height: 2.56em;
  margin-bottom: 1.29em;
}

main .quality .qua_box .quality_q ul li div img {
  display: inline-block;
  height: 100%;
}

main .quality .qua_box .quality_q ul li p {
  opacity: 1;
  font-size: .9em;
  font-family: Source Han Sans SC, Source Han Sans SC-Light;
  font-weight: 300;
  text-align: left;
  color: #56677E;
  line-height: 1.55em;
}

main .quality .qua_box .quality_img {
  width: 49.91%;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  transform-style: preserve-3d;
}

main .quality .qua_box .quality_img:hover::after {
  animation-play-state: paused;
}

main .quality .qua_box .quality_img::after {
  position: absolute;
  content: "";
  width: 78.81%;
  height: 4.2em;
  background-image: url(../images/bg11_light.png);
  background-size: 100%;
  background-position: center;
  background-repeat: no-repeat;
  left: 0;
  right: 0;
  bottom: 0;
  margin: auto;
  animation: pzbj 4s infinite;
}

@keyframes pzbj {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.07);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes pzb {
  0% {
    transform: translateY(0px) rotateY(-15deg);
  }
  50% {
    transform: translateY(20px) rotateY(-15deg);
  }
  100% {
    transform: translateY(0px) rotateY(-15deg);
  }
}

main .quality .qua_box .quality_img .imgs {
  width: 86.14%;
  height: 22.45em;
  background-image: url(../images/index/bg10.png);
  background-size: 100%;
  background-position: center;
  background-repeat: no-repeat;
  margin-bottom: 11.7em;
  transform: rotateY(-15deg);
  transition-duration: 1s;
  animation: pzb 4s infinite;
}

main .quality .qua_box .quality_img .imgs:hover {
  transform: translateY(20px) rotateY(0deg);
  animation-play-state: paused;
}

main .quality .qua_box .quality_img .imgs div {
  width: 87.02%;
  height: 17.7em;
  margin: 2.25em auto auto 2.25em;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transform: rotateY(-10deg);
}

main .quality .qua_box .quality_img .imgs div img {
  width: 100%;
}

main .price {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

main .price .price_list {
  width: 89.63%;
  display: flex;
  align-items: center;
  margin-bottom: 9.61em;
  margin-top: 5.05em;
}

main .price .price_list:hover {
  cursor: pointer;
}

main .price .price_list:hover .imgs img {
  transform: scale(1.01);
}

main .price .price_list .imgs {
  width: 49.91%;
  height: 29em;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

main .price .price_list .imgs img {
  height: 100%;
  transition-duration: 1s;
}

main .price .price_list .price_inner {
  width: 49.91%;
  height: 100%;
}

main .price .price_list .price_inner p {
  font-size: 2em;
  font-family: Source Han Sans CN, Source Han Sans CN-Bold;
  font-weight: 700;
  text-align: left;
  color: #38BE86;
  margin-left: 6.98%;
  display: inline-block;
  margin-bottom: 1.85rem;
}

main .price .price_list .price_inner .gdt {
  width: 79.16%;
  height: .15em;
  background-color: rgba(0, 0, 0, 0.22);
  margin-left: 6.98%;
  position: relative;
  margin-bottom: 2.3em;
}

main .price .price_list .price_inner .gdt::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  margin: auto;
  width: 16.76%;
  height: .3em;
  background-color: #385dbe;
}

main .price .price_list .price_inner span p {
  width: 79.16%;
  display: inline-block;
  margin-left: 6.98%;
  opacity: 0.78;
  font-size: 1em;
  font-family: Source Han Sans SC, Source Han Sans SC-Normal;
  font-weight: normal;
  text-align: left;
  color: #000000;
  line-height: 1.5em;
  margin-bottom: 1.9em;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 7;
  -webkit-box-orient: vertical;
}

main .price .price_list .price_inner a {
  margin-left: 6.98%;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 21.14%;
  height: 2.65rem;
  background: linear-gradient(135deg, #6e95f9, #365bc9);
  box-shadow: 0px 3px 10px 0px rgba(56, 93, 190, 0.4);
  font-size: .9em;
  font-family: Source Han Sans SC, Source Han Sans SC-Normal;
  font-weight: normal;
  text-align: left;
  color: #ffffff;
  line-height: 1.4em;
}

main .price .price_list .price_inner a div {
  width: 1.3em;
  height: 1.3em;
  position: relative;
  margin-left: 16.48%;
  background-image: url(../images/move_img01.png);
  background-size: 100%;
  background-position: center;
  background-repeat: no-repeat;
}

/* 资质证书板块：已删除证书图与专利证书轮播，仅保留标题区，改为白底 */
main .plastic {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: #ffffff;
  padding: 40px 0 58px;
  font-size: 1rem;
}

main .plastic .public_tit {
  margin: 0;
}

main .plastic .public_tit .tit_bj_iner {
  color: #16223c;
}

main .plastic .public_tit .tit_bj_iner span {
  color: #17a06e;
  font-weight: 600;
  font-size: 1.2em;
}

main .plastic .public_tit .fz_strip {
  background: #17a06e;
}

main .plastic .public_tit .tit_inner .tit_left div {
  color: #5c667a;
  opacity: 1;
}

/* 证书图与专利证书轮播样式已随板块删除；如恢复板块再取回（见 backups/第39轮） */

main .videos {
  width: 100%;
  font-size: 1rem;
  background-image: url(../images/index/background-img_08.jpg);
  background-size: 100%;
  background-position: center;
  background-repeat: no-repeat;
  padding-top: 7.2em;
}

main .videos .swiper {
  width: 91.05%;
  padding-bottom: 7.4em;
}

main .videos .swiper .swiper-slide {
  width: 50.65em;
  height: 23.8em;
  margin-top: 2.6em;
  position: relative;
}

main .videos .swiper .swiper-slide video,
main .videos .swiper .swiper-slide img {
  width: 100%;
  height: 100%;
}

main .videos .swiper .swiper-slide span {
  position: absolute;
  right: 0;
  top: 4.04em;
  z-index: 5;
  background: #38be86;
  padding: .65em .9em .65em 1em;
  border-radius: 1.25em 0px 0px 1.25em;
  box-shadow: 0px 3px 6px 0px rgba(56, 190, 134, 0.2);
  font-size: 1.2em;
  font-family: Source Han Sans CN, Source Han Sans CN-Bold;
  font-weight: 700;
  text-align: left;
  color: #ffffff;
}

main .marketing {
  width: 100%;
  font-size: 1rem;
  margin-bottom: 4.67em;
}

main .marketing picture {
  font-size: 0;
  display: inline;
}

main .marketing picture img {
  width: 100%;
  display: inline-block;
}

main .product_case {
  width: 100%;
  font-size: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-bottom: 3.05em;
}

main .product_case .product_boxs {
  width: 89.63%;
  display: flex;
  margin-top: 3.5em;
}

main .product_case .product_boxs .product_list {
  position: relative;
  width: 50%;
  display: flex;
  overflow: hidden;
}

main .product_case .product_boxs .product_list img {
  display: inline-block;
  width: 100%;
  transition-duration: 1.5s;
  font-size: 0;
  transform: scale(1.01);
}

main .product_case .product_boxs .product_list:hover {
  cursor: pointer;
}

main .product_case .product_boxs .product_list:hover img {
  transform: scale(1.08);
}

main .product_case .product_boxs .product_list:hover div p {
  color: #1E4795;
}

main .product_case .product_boxs .product_list:hover div i {
  background: #38be86;
}

main .product_case .product_boxs .product_list div {
  /* 第 45 轮：删除白色大卡片（含说明文字与箭头按钮），标题改为左下角贴边小标签 */
  position: absolute;
  left: 0;
  bottom: 0;
  width: auto;
  max-width: 100%;
  background: #ffffff;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 0.85em 1.5em 0.85em 1.5em;
  box-sizing: border-box;
  z-index: 3;
}

main .product_case .product_boxs .product_list div p {
  font-size: 1.4em;
  font-family: Source Han Sans CN, Source Han Sans CN-Bold;
  font-weight: 700;
  text-align: left;
  color: #1E4795;
  margin: 0;
  white-space: nowrap;
}

main .product_case .product_boxs .product_list div span {
  width: 78.58%;
  font-size: 1em;
  font-family: Source Han Sans SC, Source Han Sans SC-Normal;
  font-weight: normal;
  text-align: left;
  color: rgba(0, 0, 0, 0.6);
  line-height: 1.7em;
  margin-left: 11.77%;
  position: relative;
  padding-left: .8em;
}

main .product_case .product_boxs .product_list div span::after {
  content: "";
  position: absolute;
  left: 0;
  top: .65em;
  width: .3em;
  height: .3em;
  background: #4d4d4d;
  border-radius: 50%;
}

main .product_case .product_boxs .product_list div i {
  position: absolute;
  width: 2.85em;
  height: 2.25em;
  background: #333333;
  left: 10.7%;
  bottom: -1.1em;
  transition-duration: 1s;
}

main .product_case .product_boxs .product_list div i::after {
  content: "";
  width: .6em;
  height: 1.1em;
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  margin: auto;
  background-image: url(../images/right_img01.png);
  background-size: 100%;
  background-position: center;
  background-repeat: no-repeat;
}

main .product_case ul {
  width: 89.63%;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  font-size: 1rem;
}

main .product_case ul li {
  width: 33%;
  height: 19.7em;
  flex-grow: 1;
}

main .product_case ul li a {
  width: 100%;
  height: 100%;
  position: relative;
  display: inline-block;
  overflow: hidden;
}

main .product_case ul li a:hover img {
  transform: scale(1.1);
}

main .product_case ul li a:hover div {
  background-color: #ffffff;
}

main .product_case ul li a:hover div::after {
  background-image: url(../images/right_img03.png);
  transform: rotate(0deg);
}

main .product_case ul li a::after {
  content: "";
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0;
  top: 0;
  background-image: url(../images/index/zhezaoc_img01.png);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  /* 第 45 轮：原 z-index:-1 会让遮罩跟着 a 一起落到页面背景之后、被 img 盖住，
     导致底部标题失去压暗底、白字看不清。改为正序分层：遮罩 1 < 标题 3 */
  z-index: 1;
}

main .product_case ul li a img {
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  position: absolute;
  z-index: -1;
  transition-duration: 1s;
  transform: scale(1.01);
}

main .product_case ul li a p {
  /* 第 45 轮：标题由「大段留白处居中偏下」改为贴图左上角 */
  position: absolute;
  top: 1.25em;
  left: 1.6em;
  z-index: 3;
  font-size: 1.4em;
  font-family: Source Han Sans CN, Source Han Sans CN-Bold;
  font-weight: 700;
  text-align: left;
  color: #ffffff;
  display: block;
  margin: 0;
  padding: 0.3em 0.7em;
  background: rgba(22, 34, 60, 0.72);
  border-radius: 0.15em;
  line-height: 1.35;
}

main .product_case ul li a div {
  width: 2.55em;
  height: 2.55em;
  border: 1px solid #ffffff;
  border-radius: 50%;
  position: absolute;
  /* 第 45 轮：圆形箭头随标题一起移到左上角，放在标题下方 */
  top: 4.5em;
  left: 1.6em;
  z-index: 3;
  margin: 0;
  transition-duration: 1s;
}

main .product_case ul li a div::after {
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  left: 0;
  margin: auto;
  content: "";
  width: 1.1em;
  height: .8em;
  background-image: url(../images/right_img02.png);
  background-size: 100%;
  background-position: center;
  background-repeat: no-repeat;
  transition-duration: 1s;
  transform: rotate(-30deg);
}

/* ===== 第 55 轮：去掉这块深蓝背景 =====
   原来是 background-img_10.png（深蓝渐变 + 网格 + 同心圆）一条 463px 高的色带，
   现在只留文字和「查看更多」按钮，背景交给页面白底。
   ::after 的 cebian_img01.png 是贴着这条蓝带左缘的斜切装饰块，蓝带没了它就成一条
   孤零零的蓝色斜条（虽然会被 .introduction 的 z-index:889 压住），一并去掉。
   上下留白从 5.75em / 7.05em 收窄，避免去掉背景后出现大片空白。 */
main .jing_mi {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  position: relative;
}

main .jing_mi .price_list {
  width: 89.63%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 3.4em;
  margin-top: 3.2em;
}

main .jing_mi .price_list .price_inner {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

main .jing_mi .price_list .price_inner span {
  width: 35%;
  display: inline-block;
  font-size: 1.4em;
  font-family: Source Han Sans CN, Source Han Sans CN-Regular;
  font-weight: 400;
  text-align: center;
  line-height: 2em;
  color: #333333;
  margin-bottom: 2.8em;
}

main .jing_mi .price_list .price_inner a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 10.57%;
  height: 2.65rem;
  background: linear-gradient(135deg, #6e95f9, #365bc9);
  box-shadow: 0px 3px 10px 0px rgba(56, 93, 190, 0.4);
  font-size: .9em;
  font-family: Source Han Sans SC, Source Han Sans SC-Normal;
  font-weight: normal;
  text-align: left;
  color: #ffffff;
  line-height: 1.4em;
}

main .jing_mi .price_list .price_inner a div {
  width: 1.3em;
  height: 1.3em;
  position: relative;
  margin-left: 16.48%;
  background-image: url(../images/index/move_img01.png);
  background-size: 100%;
  background-position: center;
  background-repeat: no-repeat;
}

main .introduction {
  width: 100%;
  height: auto;
  display: flex;
  flex-direction: row;
  font-size: 1.1rem;
}

main .introduction .swiper-wrapper {
  width: 100%;
  overflow: hidden;
}

main .introduction .swiper-wrapper .brand_box {
  overflow: hidden;
}

main .introduction .swiper-wrapper .brand_box.bx_1 {
  width: 66.95em;
}

main .introduction .swiper-wrapper .brand_box.bx_1 .qx_box {
  width: 100%;
  transform: skewX(-15deg) translate(-5.45em);
}

main .introduction .swiper-wrapper .brand_box.bx_1 .qx_box .brand_inner {
  width: 66.95em;
  transform: skewX(15deg) translate(5.45em);
  transform-origin: left;
}

main .introduction .swiper-wrapper .brand_box.bx_2 {
  /* 第 47 轮：原 30.69em（1920 下仅 540px）放不下「企业文化」四段式文案，
     文字会被本元素的 overflow:hidden 从右侧裁掉（实测可见宽度只有 133px）。
     加宽到 46em，让右侧深蓝块容得下正文，同时不越过视口右缘。 */
  width: 46em;
  margin-left: -9.318em;
}

main .introduction .swiper-wrapper .brand_box.bx_2 .qx_box {
  width: 100%;
  transform: skewX(-15deg) translate(5.45em);
}

main .introduction .swiper-wrapper .brand_box.bx_2 .qx_box .brand_inner {
  width: 66.95em;
  transform: skewX(15deg) translate(-5.45em);
  transform-origin: left;
}

main .introduction .swiper-wrapper .brand_box.bx_2 .qx_box .brand_inner .brand_open {
  position: absolute;
  top: 9.18em;
  left: 12.86em;
  display: flex;
  align-items: flex-start;
}

/* 第 47 轮：右侧「企业文化」栏的 brand_bottom 原为固定 width: 38.81em，
   而它在 brand_box 内的可用宽度只有 46em - 23.1em = 22.9em，
   多出的部分会被 .brand_box 的 overflow:hidden 从右侧硬裁。
   这里把宽度收到可用值，保证四段文案完整可见。 */
main .introduction .swiper-wrapper .brand_box.bx_2 .qx_box .brand_inner .brand_open .brand_bottom {
  width: 22.8em;
  min-width: 0;
}

main .introduction .swiper-wrapper .brand_box.bx_2 .qx_box .brand_inner .brand_open .brand_top {
  display: flex;
  flex-direction: column;
}

main .introduction .swiper-wrapper .brand_box.bx_2 .qx_box .brand_inner .brand_open .brand_top p {
  font-size: 1.81em;
  font-family: Source Han Sans CN, Source Han Sans CN-Bold;
  font-weight: 700;
  text-align: left;
  color: #ffffff;
}

main .introduction .swiper-wrapper .brand_box .qx_box {
  height: 100%;
  overflow: hidden;
}

main .introduction .swiper-wrapper .brand_box .qx_box .brand_inner {
  height: 44.2rem;
  position: relative;
}

main .introduction .swiper-wrapper .brand_box .qx_box .brand_inner img {
  width: 100%;
  height: 100%;
  display: inline-block;
}

main .introduction .swiper-wrapper .brand_box .qx_box .brand_inner .brand_open {
  position: absolute;
  top: 9.18em;
  left: 7.31em;
  display: flex;
  align-items: flex-start;
}

main .introduction .swiper-wrapper .brand_box .qx_box .brand_inner .brand_open .brand_top {
  margin-right: 2.95em;
  display: flex;
  flex-direction: column;
}

main .introduction .swiper-wrapper .brand_box .qx_box .brand_inner .brand_open .brand_top p {
  font-size: 1.81em;
  font-family: Source Han Sans CN, Source Han Sans CN-Bold;
  font-weight: 700;
  text-align: left;
  color: #ffffff;
}

main .introduction .swiper-wrapper .brand_box .qx_box .brand_inner .brand_open .brand_bottom {
  width: 38.81em;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: space-between;
}

main .introduction .swiper-wrapper .brand_box .qx_box .brand_inner .brand_open .brand_bottom span {
  font-size: 1.09em;
  font-family: Source Han Sans SC, Source Han Sans SC-Light;
  font-weight: 300;
  text-align: left;
  color: #ffffff;
  line-height: 2em;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 6;
  -webkit-box-orient: vertical;
  margin-bottom: 8.09em;
}

main .introduction .swiper-wrapper .brand_box .qx_box .brand_inner .brand_open .brand_bottom a {
  display: flex;
  flex-direction: row;
  align-items: center;
}

/* 第 47 轮：企业文化改为「使命/愿景/价值观/行为理念」四段式。
   原 span 有 -webkit-line-clamp: 6，四段各占一行会被截断，故取消截断改普通块级流，
   并收紧段间距与下外边距，保证「更多」按钮不上移、整体不超出背景图。 */
main .introduction .swiper-wrapper .brand_box .qx_box .brand_inner .brand_open .brand_bottom span.brand_creed {
  display: block;
  -webkit-line-clamp: unset;
  overflow: visible;
  text-overflow: clip;
  line-height: 1.9em;
  margin-bottom: 4.6em;
}

main .introduction .swiper-wrapper .brand_box .qx_box .brand_inner .brand_open .brand_bottom span.brand_creed p {
  margin: 0 0 0.62em 0;
}

main .introduction .swiper-wrapper .brand_box .qx_box .brand_inner .brand_open .brand_bottom span.brand_creed p:last-child {
  margin-bottom: 0;
}

main .introduction .swiper-wrapper .brand_box .qx_box .brand_inner .brand_open .brand_bottom span.brand_creed p b {
  font-weight: 600;
  color: #7fe0b0;
}

main .introduction .swiper-wrapper .brand_box .qx_box .brand_inner .brand_open .brand_bottom a span {
  font-size: .9em;
  font-family: Source Han Sans CN, Source Han Sans CN-Normal;
  font-weight: normal;
  text-align: left;
  color: #ffffff;
  margin: 0;
}

main .introduction .swiper-wrapper .brand_box .qx_box .brand_inner .brand_open .brand_bottom a img {
  width: 1.04em;
  margin-left: .54em;
}

main .introduction .swiper-wrapper .brand_box .qx_box .brand_inner .brand_close {
  position: absolute;
  left: 1.3rem;
  bottom: 3.425rem;
}

main .introduction .swiper-wrapper .brand_box .qx_box .brand_inner .brand_close span {
  font-size: 1.4rem;
  font-family: Source Han Sans SC, Source Han Sans SC-Light;
  font-weight: 300;
  color: #ffffff;
  margin-bottom: 0.8rem;
}

main .introduction .swiper-wrapper .brand_box .qx_box .brand_inner .brand_close div {
  width: 1.3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

main .introduction .swiper-wrapper .brand_box .qx_box .brand_inner .brand_close div img {
  width: 100%;
}

main .top_five {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  font-size: 1rem;
  padding-top: 7.15em;
  padding-bottom: 5.47em;
  position: relative;
}

main .top_five::after {
  content: "";
  position: absolute;
  width: 7.65em;
  height: 31.9em;
  right: 0;
  top: -23.6em;
  transform: rotate(180deg);
  background-image: url(../images/index/cebian_img01.png);
  background-size: 100%;
  background-position: center;
  background-repeat: no-repeat;
  z-index: 888;
}

main .top_five ul {
  width: 89.63%;
  display: flex;
  align-items: flex-start;
  flex-wrap: wrap;
  margin-top: 4.2em;
}

main .top_five ul li {
  width: 17.66%;
  height: 13.2em;
  margin: .25em -1.97%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

main .top_five ul li:hover {
  cursor: pointer;
}

main .top_five ul li:nth-child(1), main .top_five ul li:nth-child(8) {
  margin-left: 0;
}

main .top_five ul li:nth-child(1), main .top_five ul li:nth-child(3), main .top_five ul li:nth-child(5), main .top_five ul li:nth-child(7) {
  transform: translateY(6.8em);
}

main .top_five ul li:nth-child(8), main .top_five ul li:nth-child(10), main .top_five ul li:nth-child(12) {
  opacity: 0;
  z-index: -1;
}

main .top_five ul li img {
  width: 100%;
  display: inline-block;
}

main .news {
  width: 100%;
  font-size: 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: -4.67em;
  padding-top: 6.07em;
  background: #fafafa;
  padding-bottom: 5.77em;
}

main .news .precision_list {
  width: 89.63%;
  margin-bottom: .75em;
  margin-top: 4.15em;
  box-shadow: 0px 10px 20px 0px rgba(0, 0, 0, 0.04);
  transition-duration: .5s;
}

main .news .precision_list:hover {
  box-shadow: 0px 3px 10px 0px rgba(56, 93, 190, 0.4);
}

main .news .precision_list:hover a .imgs img {
  transform: scale(1.06);
}

main .news .precision_list a {
  width: 100%;
  display: flex;
  align-items: center;
}

main .news .precision_list a .imgs {
  width: 49.91%;
  height: 24.2em;
  overflow: hidden;
}

main .news .precision_list a .imgs img {
  width: 100%;
  height: 100%;
  transition-duration: 1s;
}

main .news .precision_list a .precision_inner {
  width: 49.91%;
  height: 100%;
}

main .news .precision_list a .precision_inner p {
  width: 78.23%;
  font-size: 1.5em;
  font-family: Source Han Sans CN, Source Han Sans CN-Bold;
  font-weight: 700;
  text-align: left;
  color: #333333;
  line-height: 1.6em;
  margin-left: 9.3%;
  display: inline-block;
  margin-bottom: 1.87rem;
}

main .news .precision_list a .precision_inner span {
  width: 79.16%;
  display: inline-block;
  margin-left: 9.3%;
  opacity: 0.78;
  font-size: 1em;
  font-family: Source Han Sans SC, Source Han Sans SC-Normal;
  font-weight: normal;
  text-align: left;
  color: #000000;
  line-height: 1.5em;
  margin-bottom: 1.9em;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

main .news .precision_list a .precision_inner .movese {
  margin-left: 9.3%;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 21.14%;
  height: 2.65rem;
  background: linear-gradient(135deg, #6e95f9, #365bc9);
  box-shadow: 0px 3px 10px 0px rgba(56, 93, 190, 0.4);
  font-size: 1em;
  font-family: Source Han Sans SC, Source Han Sans SC-Normal;
  font-weight: normal;
  text-align: left;
  color: #ffffff;
  line-height: 1.4em;
}

main .news .precision_list a .precision_inner .movese div {
  width: 1.3em;
  height: 1.3em;
  position: relative;
  margin-left: 16.48%;
  background-image: url(../images/index/move_img01.png);
  background-size: 100%;
  background-position: center;
  background-repeat: no-repeat;
}

main .news ul {
  width: 89.63%;
  display: flex;
  align-items: center;
}

main .news ul li {
  width: 32.71%;
  margin-right: 1%;
  margin-bottom: .75em;
  background-color: #ffffff;
  box-shadow: 0px 20px 20px 0px rgba(0, 0, 0, 0.04);
  transition-duration: .5s;
}

main .news ul li:hover {
  box-shadow: 0px 3px 10px 0px rgba(56, 93, 190, 0.4);
}

main .news ul li:nth-child(3n+3) {
  margin-right: 0;
}

main .news ul li a {
  width: 100%;
  display: flex;
  flex-direction: column;
}

main .news ul li a div {
  font-size: 2.6em;
  font-family: Source Han Sans SC, Source Han Sans SC-Bold;
  font-weight: 700;
  text-align: center;
  color: #365bc9;
  text-align: left;
  width: 78.33%;
  margin-left: 10.83%;
  margin-top: 2rem;
}

main .news ul li a i {
  font-size: 1em;
  font-family: Source Han Sans CN, Source Han Sans CN-Normal;
  font-weight: normal;
  text-align: center;
  color: #385dbe;
  width: 78.33%;
  margin-left: 10.83%;
  text-align: left;
}

main .news ul li a p {
  font-size: 1.2em;
  font-family: Source Han Sans CN, Source Han Sans CN-Bold;
  font-weight: 700;
  text-align: left;
  color: #000000;
  line-height: 1.9em;
  width: 78.33%;
  margin: 2.22rem 0 1.6rem 10.83%;
  text-align: left;
  display: inline-block;
}

main .news ul li a span {
  width: 78.33%;
  margin-left: 10.83%;
  text-align: left;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  opacity: 0.45;
  font-size: 1em;
  font-family: Source Han Sans CN, Source Han Sans CN-Normal;
  font-weight: normal;
  text-align: left;
  color: #000000;
  margin-bottom: 3.18em;
}
/* ===== 首页主视觉文案（大卡蓝） ===== */
main .loop_ban .swiper-slide { position: relative; }
/* ===== 轮播文案：强化对比与层级 ===== */
/* 左侧深色渐变遮罩（加深，确保白字在任何车身上都清晰） */
main .loop_ban .swiper-slide::before {
  content: "";
  position: absolute;
  left: 0; top: 0; right: 0; bottom: 0;
  /* 第 58 轮：左侧改成天空了，这层压深色必须整条撤掉。
     留着哪怕 .12 也会把天空压成阴天亮度的灰蓝，一眼看出「左边盖了东西」。
     文字改深色后不再需要任何底板。 */
  background: none;
  z-index: 2;
  pointer-events: none;
}
main .loop_ban .ban_text {
  position: absolute;
  left: 6.5%;
  /* 第 58 轮-b：原图下半部是匝道和桥，天空集中在上 60%，
     文字块整体上移，让副文案和小字也落在蓝天上 */
  top: 44%;
  transform: translateY(-50%);
  max-width: 28%;
  /* 第 58 轮：左侧背景从深色改成天空，白字实测只有 1.9:1（AA 要 4.5:1），
     整块反转成深品牌蓝。浅蓝天空 + 深蓝字的通透感也更贴合隔热膜这个品类。 */
  color: #0b2a55;
  z-index: 3;
}
/* 小标签 */
main .loop_ban .ban_text .tag {
  display: inline-flex;
  align-items: center;
  gap: .6em;
  padding: .46em 1.15em;
  margin-bottom: .9em;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: #ffffff;
  background: rgba(16, 78, 190, .92);
  border: 1px solid rgba(255, 255, 255, .62);
  border-radius: 999px;
  backdrop-filter: blur(6px);
  box-shadow: 0 .25em .8em rgba(6, 24, 60, .35);
}
main .loop_ban .ban_text .tag::before {
  content: "";
  flex: 0 0 auto;
  width: .5em; height: .5em;
  border-radius: 50%;
  background: #cfe6ff;
  box-shadow: 0 0 0 .2em rgba(207, 230, 255, .38);
}
/* 主标题：加大加粗，重点词高亮 */
main .loop_ban .ban_text .ban_h1 {
  /* 第 58 轮-b：标题保持按 <br> 换行（不自动折行），
     宽度由 .ban_text 的 max-width 控制，字号降到 4.25rem 保证最长一行不溢出 */
  white-space: nowrap;
  font-size: 3.4rem;
  line-height: 1.24;
  font-weight: 800;
  letter-spacing: .01em;
  margin: 0 0 .42em;
  color: #0b2a55;
  /* 深字配浅底，投影反过来用白色，压住天空里深浅不一的云 */
  text-shadow: 0 1px 0 rgba(255, 255, 255, .62);
}
/* 第 68 轮：轮播第 2/3 张标题原为 <h2>，被 Swiper loop 克隆成两份且只有浏览器默认
   18px/400 字重，与首张 40.8px/800 明显不匹配。改为视觉层 div 并补齐规格。 */
main .loop_ban .ban_text .ban_h2 {
  /* 第 58 轮-b：标题保持按 <br> 换行（不自动折行），
     宽度由 .ban_text 的 max-width 控制，字号降到 4.25rem 保证最长一行不溢出 */
  white-space: nowrap;
  font-size: 3.1rem;
  line-height: 1.24;
  font-weight: 800;
  letter-spacing: .01em;
  margin: 0 0 .42em;
  color: #0b2a55;
  /* 深字配浅底，投影反过来用白色，压住天空里深浅不一的云 */
  text-shadow: 0 1px 0 rgba(255, 255, 255, .62);
}
main .loop_ban .ban_text .ban_h2 em {
  font-style: normal;
  color: #0a55b8;
  text-shadow: 0 1px 0 rgba(255, 255, 255, .62);
}
main .loop_ban .ban_text .ban_h1 em {
  font-style: normal;
  color: #0a55b8;
  text-shadow: 0 1px 0 rgba(255, 255, 255, .62);
}
/* 副标题 */
main .loop_ban .ban_text p {
  font-size: 1.75rem;
  line-height: 1.65;
  font-weight: 700;
  color: #173e6b;
  margin: 0 0 .6em;
  letter-spacing: .01em;
  text-shadow: 0 1px 0 rgba(255, 255, 255, .55);
}
/* 卖点行：竖线 + 亮点 */
main .loop_ban .ban_text span {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .5em .9em;
  font-size: 1.16rem;
  line-height: 1.5;
  font-weight: 600;
  color: #26486f;
  margin-bottom: 1.5em;
  padding-left: .9em;
  border-left: 3px solid #0f6fd8;
  text-shadow: 0 1px 0 rgba(255, 255, 255, .5);
}
/* 按钮 */
main .loop_ban .ban_text a {
  display: inline-flex;
  align-items: center;
  gap: .7em;
  padding: .9em 2.3em;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: #fff;
  border: 1px solid rgba(150, 200, 255, .9);
  border-radius: 999px;
  background: linear-gradient(135deg, #2a7bff 0%, #1558e0 100%);
  box-shadow: 0 .55em 1.6em rgba(10, 60, 180, .55), inset 0 1px 0 rgba(255,255,255,.25);
  transition: all .3s ease;
}
main .loop_ban .ban_text a:hover {
  background: linear-gradient(135deg, #3d8bff 0%, #1a5fe0 100%);
  border-color: #9cc8ff;
  transform: translateY(-2px);
  box-shadow: 0 .8em 2em rgba(16, 80, 200, .55);
}
main .loop_ban .ban_text a i {
  width: 1.1em; height: 1px;
  background: currentColor;
  position: relative;
}
main .loop_ban .ban_text a i::after {
  content: "";
  position: absolute; right: 0; top: 50%;
  width: .42em; height: .42em;
  border-top: 1px solid currentColor;
  border-right: 1px solid currentColor;
  transform: translateY(-50%) rotate(45deg);
}
/* 大屏（≥1600px）：文案再放大一档，避免在宽屏上显得单薄 */
@media screen and (min-width: 1600px) {
  /* 第 58 轮-b：头图是真实蓝天实拍，车体左缘在 31%，
     文案必须整块落在左侧真实天空里 → 宽度收到 28%，字号同步下调，
     并把三条标题精简到每行 ≤8 字（横幅排版，不再靠撑宽来"显大气"） */
  main .loop_ban .ban_text { max-width: 28%; }
  main .loop_ban .ban_text .ban_h1 { font-size: 3.4rem; }
  main .loop_ban .ban_text .ban_h2 { font-size: 3.1rem; }
  main .loop_ban .ban_text p { font-size: 1.75rem; }
  main .loop_ban .ban_text span { font-size: 1.3rem; }
  main .loop_ban .ban_text .tag { font-size: 1.38rem; }
  main .loop_ban .ban_text a { font-size: 1.72rem; }
}
/* 响应式：中小屏收缩字号，避免压图 */
@media screen and (max-width: 1400px) {
  main .loop_ban .ban_text { max-width: 30%; }
  main .loop_ban .ban_text .ban_h1 { font-size: 2.85rem; }
  main .loop_ban .ban_text .ban_h2 { font-size: 2.6rem; }
  main .loop_ban .ban_text p { font-size: 1.5rem; }
  main .loop_ban .ban_text span { font-size: 1.14rem; }
  main .loop_ban .ban_text .tag { font-size: 1.1rem; }
  main .loop_ban .ban_text a { font-size: 1.34rem; }
}
@media screen and (max-width: 1200px) {
  /* 图变矮时文案会挤，给轮播一个最小高度兜底 */
  main .loop_ban .swiper-slide { min-height: 540px; }
  /* 第 54 轮：高度锁 540 后图片比例会被压扁，改用 cover 裁两侧并右对齐，保证整车完整 */
  main .loop_ban .swiper-slide img {
    height: 540px !important;
    /* 第 58 轮：4:3 图在 768 宽下按高度 540 只有 720px 宽，撑不满容器，右边留了条白边。
       必须显式给 width:100%，让 object-fit:cover 去裁而不是留白。 */
    width: 100% !important;
    object-fit: cover;
    /* 第 58 轮：751~1200 改用 4:3 专用图（banner_truck_0Xt.jpg），
       构图已经重排过，居中显示即可；原来的 right center 是为桌面宽幅图补的 */
    object-position: center center;
  }
  /* 第 58 轮：文字整体上移，避开车的挡风玻璃。
     原来垂直居中时「一车一档…」那行尾巴正好压在深蓝色玻璃上，深字压深蓝等于看不见。 */
  main .loop_ban .ban_text { max-width: 40%; top: 43%; }
  /* 第 59 轮：bt3 平板版车居中，文字块给到 40% 宽 */
  main .loop_ban .ban_text.bt3 { top: 30%; max-width: 40%; }
  main .loop_ban .ban_text .ban_h1 { font-size: 2.4rem; }
  main .loop_ban .ban_text .ban_h2 { font-size: 2.2rem; }
  main .loop_ban .ban_text p { font-size: 1.35rem; }
  main .loop_ban .ban_text span { font-size: 1.05rem; margin-bottom: 1.6em; }
  main .loop_ban .ban_text .tag { font-size: 1.1rem; }
  main .loop_ban .ban_text a { font-size: 1.42rem; }
}
@media screen and (max-width: 750px) {
  main .loop_ban .swiper-slide { min-height: 500px; }
  main .loop_ban .swiper-slide img { height: 500px !important; object-fit: cover; object-position: center center; }
  main .loop_ban .ban_text { max-width: 62%; left: 6.5%; }
  /* 移动端字重、行距收紧，避免文案溢出轮播 */
  main .loop_ban .ban_text .ban_h1 {
    white-space: normal; font-size: 6.4rem; line-height: 1.24; margin-bottom: .36em;
    letter-spacing: 0; word-break: keep-all;
  }
  main .loop_ban .ban_text .ban_h2 {
    white-space: normal; font-size: 5.8rem; line-height: 1.24; margin-bottom: .36em;
    letter-spacing: 0; word-break: keep-all;
  }
  main .loop_ban .ban_text p { font-size: 3.1rem; line-height: 1.5; margin-bottom: .46em; }
  main .loop_ban .ban_text span { font-size: 2.9rem; line-height: 1.45; margin-bottom: 1.4em; padding-left: .6em; border-left-width: 4px; }
  main .loop_ban .ban_text .tag { font-size: 2.7rem; margin-bottom: .6em; padding: .34em .85em; }
  main .loop_ban .ban_text a { font-size: 3.1rem; padding: .5em 1.2em; gap: .45em; }
  /* 移动端遮罩改为自上而下，文案压得住车身
     第 56 轮：图内左侧已烘入深灰蓝渐变，遮罩整体调轻、过渡带拉长，
     顶部仍保留 .80 保证白字清晰，但不再一路压到底 */
  main .loop_ban .swiper-slide::before {
    /* 第 58 轮：移动端同桌面，整条撤掉 */
    background: none;
  }
}


/* ===== 第 55 轮：品牌区（走进大卡蓝 / 企业文化）白底换回深蓝 =====
   第 53 轮把 background-img_12/13.jpg（深蓝渐变 + 同心圆）换成了 brand_bg_white_*.jpg，
   文字配套改成了深色。本轮按需求恢复深蓝背景图，文字色一并回到白色系。
   注意：深蓝底年代这一块用的是「半透明白字压暗底」的观感，所以正文不要给纯白，
   用 rgba(255,255,255,.86)，比纯白柔和、也比现在的 #4a5468 在深蓝上清楚。 */

main .introduction .swiper-wrapper .brand_box .qx_box .brand_inner {
  /* 图片加载前兜一层深蓝，避免闪一下白底 */
  background-color: #0b1a3d;
}

/* 小标题：走进大卡蓝 / 企业文化 */
main .introduction .swiper-wrapper .brand_box .qx_box .brand_inner .brand_open .brand_top p,
main .introduction .swiper-wrapper .brand_box.bx_2 .qx_box .brand_inner .brand_open .brand_top p {
  color: #ffffff;
}

/* 正文 */
main .introduction .swiper-wrapper .brand_box .qx_box .brand_inner .brand_open .brand_bottom span {
  color: rgba(255, 255, 255, .86);
}

/* 四段式里的「使命：」「愿景：」等前缀，回到亮绿 #7fe0b0（深蓝底上的原设计色） */
main .introduction .swiper-wrapper .brand_box .qx_box .brand_inner .brand_open .brand_bottom span.brand_creed p b {
  color: #7fe0b0;
}

/* 「更多」链接文字，回到浅蓝 #8fb8ff */
main .introduction .swiper-wrapper .brand_box .qx_box .brand_inner .brand_open .brand_bottom a span {
  color: #8fb8ff;
}

/* 第 55 轮：深蓝底回来了，这块与上面的 .jing_mi 同色系，原本被 z-index 889 遮住的
   cebian_img01.png 蓝色斜切块又能自然融进背景。保留 z-index，避免它在两段交界处
   露出一条突兀的亮蓝边。 */
main .introduction {
  position: relative;
  z-index: 889;
}

/* ============================================================
   第 58 轮-b：三张头图换成真实蓝天实拍后的逐图微调
   三张图左侧蓝天分布不同，文案块的纵向位置必须分开调，
   否则总有一张的字会压在塔楼 / 车顶 / 匝道上：
     · bt1（yutong_a 居中构图）：天空集中在上 60%，文字略上移
     · bt2（yutong_b）：左侧有地标塔楼，塔身到 y≈55%，文字再上移一档
     · bt3（yutong_a 左侧特写）：左侧 70% 全是天空，可以放中间
   ============================================================ */
@media screen and (min-width: 1201px) {
  /* bt1（实拍a 全幅）：实测 y<55% 天空占比 71~100%，60% 以下骤降到 12%（桥+路面）。
     整块文案 ~250px 高，中心放 34% 才能让最后一行也落在天上。 */
  main .loop_ban .ban_text.bt1 { top: 34%; }

  /* ── 第 59 轮：bt2 整体下移（用户反馈「文字和蓝色框整体需要往下调」）──
     bt2 用的是实拍b，车顶几乎顶到画面上沿（y=3.5%），左侧只有 y<30% 是干净天空。
     原来 top:26% 让整块文案贴在最上面，视觉上「吊」在顶部；
     下移到 36% 后，标签右边缘刚好在 y≈24%、小字落在 y≈48%，
     这一带左侧 40% 的天空占比还有 51%，仍然在蓝天上，但整体重心下来了。 */
  main .loop_ban .ban_text.bt2 { top: 38%; max-width: 31%; }

  /* ── 第 59 轮：bt3 换成「整幅正面车居中 · 完整车型」──
     新图车体居中（车宽占 69%，车顶上沿 y=15%），左右都有真实蓝天。
     文案在左侧蓝天里，宽度 34%（1920 下约 653px），中心压到 26%，
     整块落在 y 11%~41% —— 该区间左侧 40% 的天空占比 83~100%。 */
  main .loop_ban .ban_text.bt3 { top: 32%; max-width: 34%; }
}
/* 移动端（≤750px）逐图定位：
   竖版图（750×960）的天空分布和桌面完全不同，实测：
     · 01m：y<55% 干净（56~100%），60% 以下只剩 15%
     · 02m：y<35% 干净，40% 以下只剩 9% —— 必须大幅上移
     · 03m：几乎整幅都干净
   移动端文案块约 200px 高（占 21%），据此换算中心点。 */
@media screen and (max-width: 750px) {
  main .loop_ban .ban_text.bt1 { top: 34%; }
  /* 第 59 轮：bt2 同步下移，与桌面保持一致的视觉重心 */
  main .loop_ban .ban_text.bt2 { top: 40%; }
  /* 第 59 轮：bt3 换整车居中图后，竖版要把车整个框进来，文案放上半部 */
  main .loop_ban .ban_text.bt3 { top: 26%; }
}