@charset "utf-8";

/*------------------------------------------------------------
	デフォルトスタイル
------------------------------------------------------------*/
html,
body,
div,
span,
applet,
object,
iframe,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
a,
abbr,
acronym,
address,
big,
cite,
code,
del,
dfn,
em,
font,
img,
ins,
kbd,
q,
s,
samp,
small,
strike,
strong,
sub,
sup,
tt,
var,
b,
u,
i,
center,
dl,
dt,
dd,
ol,
ul,
li,
fieldset,
form,
label,
legend,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td {
  margin: 0;
  padding: 0;
  background: transparent;
  border: 0;
  outline: 0;
}

article,
aside,
canvas,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section,
summary {
  display: block;
}

ol,
ul {
  list-style: none;
}

blockquote,
q {
  quotes: none;
}

:focus {
  outline: 0;
}

ins {
  text-decoration: none;
}

del {
  text-decoration: line-through;
}

img {
  vertical-align: middle;
  width: 100%;
}

a,
a:link {
  color: #333;
  text-decoration: none;
}

a:visited {
  color: #333;
}

a:hover {
  color: #333;
}

a:active {
  color: #333;
}

body {
  color: #333;
  font-size: 15px;
  line-height: 1.6;
  text-size-adjust: none;
  -webkit-text-size-adjust: none;
  background-color: #FFF;
  font-weight: 350;
  font-family: '思源黑体 CN';
}

#container {
  text-align: left;
}

#main {
  padding-bottom: 40px;
}

.container {
  width: 82%;
  max-width: 1400px;
  margin: 0 auto;
}

.fl {
  float: left;
}

.fr {
  float: right;
}

/*------------------------------------------------------------
	头部
------------------------------------------------------------*/
#gHeader {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  z-index: 100;
  padding: 0 8%;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
  background: none;
}

#gHeader .logo a {
  display: block;
}

#gHeader .logo a img {
  width: 210px;
  display: block;
  margin-top: 18px;
}

#gHeader .ss {
  padding-left: 12px;
  margin-left: 20px;
  overflow: hidden;
  height: 90px;
}

#gHeader .ss form {
  width: 165px;
  border-radius: 15px;
  overflow: hidden;
  margin-top: 30px;
  position: relative;
  box-sizing: border-box;
  border: 1px solid #efefef;
}

#gHeader .ss form input.tex {
  width: 100%;
  line-height: 28px;
  background: none;
  border: none;
  color: #fff;
  padding: 0 50px 0 10px;
  font-size: 13px;
}

#gHeader .ss form input.btn {
  width: 36px;
  height: 28px;
  position: absolute;
  right: 2px;
  top: 0;
  background: url(../../images/ss.png) no-repeat center;
  background-size: 18px;
  border: none;
  padding: 0;
  cursor: pointer;
}


input::-webkit-input-placeholder {
  /* 使用webkit内核的浏览器 */
  color: rgba(255, 255, 255, .6);
}

input:-moz-placeholder {
  /* Firefox版本4-18 */
  color: rgba(255, 255, 255, .6);
}

input::-moz-placeholder {
  /* Firefox版本19+ */
  color: rgba(255, 255, 255, .6);
}

input:-ms-input-placeholder {
  /* IE浏览器 */
  color: rgba(255, 255, 255, .6);
}



/*------------------------------------------------------------
	gNavi
------------------------------------------------------------*/

#gNavi>ul>li {
  display: inline-block;
}

#gNavi>ul>li>a {
  display: block;
  padding: 0 20px;
  line-height: 90px;
  color: #fff;
  text-shadow: 0 0 5px rgba(0, 0, 0, .2);
  font-size: 18px;
  position: relative;
}

#gNavi>ul>li>a:before {
  content: "";
  width: 26px;
  height: 3px;
  background: rgba(255, 255, 255, .9);
  position: absolute;
  left: 50%;
  bottom: 14px;
  border-radius: 2px;
  transform: translateX(-15px);
  display: none;
}

#gNavi>ul>li.on>a:before {
  display: block;
}

#gNavi>ul>li .drop {
  position: absolute;
  left: 25%;
  top: 90px;
  right: 25%;
  background: rgba(255, 255, 255, 0.9);
  padding: 30px 0;
  box-shadow: 0 0 10px rgba(0, 0, 0, .1);
  display: none;
}

#gNavi>ul>li .drop .lnav {
  width: 23%;
}

#gNavi>ul>li .drop .lnav li {
  padding: 0 30px;
}

#gNavi>ul>li .drop .lnav li a {
  display: block;
  line-height: 44px;
  font-size: 16px;
  border-bottom: 1px solid rgba(0, 0, 0, .1);
  padding: 0 10px;
  color: #222;
}

#gNavi>ul>li .drop .lnav li.on a {
  border-bottom: none;
  color: #1171be;
  font-weight: 600;
}

#gNavi>ul>li .drop .lnav li.on {
  background: #b8dcfa;
  border-left: 4px solid #1171be;
}

#gNavi>ul>li .drop .rnav {
  width: 75%;
}

#gNavi>ul>li .drop .rnav ul {
  overflow: hidden;
}

#gNavi>ul>li .drop .rnav li {
  width: 25%;
  float: left;
}

#gNavi>ul>li .drop .rnav li a {
  display: block;
  line-height: 30px;
  color: #343434;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#gNavi>ul>li .drop .rnav li a.on,
#gNavi>ul>li .drop .rnav li:hover a {
  color: #1171be;
}

#gNavi>ul>li:nth-child(3),#gNavi>ul>li:nth-child(5) {
  position: relative;
}

#gNavi>ul>li .drop1 {
  left: -20px;
  right: -20px;
  padding: 5px 10px;
}

#gNavi>ul>li .drop1 a {
  display: block;
  line-height: 35px;
  font-size: 16px;
  padding: 0 10px;
  border-bottom: 1px dashed #dedede;
}

#gNavi>ul>li .drop1 a.on,
#gNavi>ul>li .drop1 a:hover {
  color: #1171be;
}

/*------------------------------------------------------------
	底部
------------------------------------------------------------*/
#gFooter {
  background: url(../../images/bg3.jpg) no-repeat center;
  background-size: cover;
  padding-top: 34px;
  color: #fff;
  font-size: 15px;
}

#gFooter a {
  color: #fff;
}

#gFooter h3 {
  font-size: 21px;
  font-weight: 500;
  margin-bottom: 10px;
}

#gFooter h3 span {
  font-size: 14px;
  font-weight: 400;
}

#gFooter .lBox {
  width: 30%;
  padding-right: 30px;
  box-sizing: border-box;
}

#gFooter .lBox p {
  line-height: 30px;
}

#gFooter .mBox {
  width: 25%;
}

#gFooter .mBox1 {
  width: 20%;
}

#gFooter .mBox .ul1 li {
  width: 50%;
  float: left;
}

#gFooter .rBox {
  width: 25%;
}

#gFooter .rBox .ewm {
  text-align: center;
  padding-top: 20px;
}

#gFooter .rBox .ewm .img {
  width: 45%;
  float: right;
  font-size: 14px;
  margin: 0 2%;
}

#gFooter .rBox .ewm .img img {
  max-width: 120px;
  margin-bottom: 6px;
}

#gFooter .fLink {
  margin-top: 20px;
  opacity: 0.8;
}


#gFooter .fLink a {
  font-size: 14px;
  display: inline-block;
  padding: 0 5px;
}

#gFooter .power {
  line-height: 40px;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, .2);
  margin-top: 20px;
  font-size: 14px;
}

#gFooter .power img {
  width: 21px;
}

/* 公共部分 */
.sec .title {
  padding: 40px 0 26px;
  text-align: center;
  /* position: relative; */
}

.sec .title span {
  color: #1171be;
}

.sec .title h2 {
  font-size: 32px;
  font-weight: 500;
}

.sec .title p {
  color: #999;
}

.sec .more {
  text-align: center;
  padding-top: 30px;
}

.sec .more a {
  display: inline-block;
  color: #1171be;
  text-align: center;
  line-height: 40px;
  border-radius: 4px;
  padding: 0 18px 0 20px;
  border: 1px solid #1171be;
}

.sec .more a img {
  width: 22px;
}


.fixed {
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 999;
}
.fixed li {
  margin-bottom: 12px;
  position: relative;
}
.fixed li span {
  display: block;
  width: 40px;
  line-height: 40px;
  background: #fff;
  border-radius:3px;
  border: 1px solid #efefef;
  text-align: center;
  cursor: pointer;
}
.fixed li span img {
  width: 22px;
}

.fixed li .box {
  background: #fff;
  box-shadow: 0 0 10px rgba(0, 0, 0, .2);
  padding: 12px;
  border-radius: 3px;
  position: absolute;
  right: 52px;
  top: -30px;
  display: none;
  transition: 0.3s;
}
.fixed li .box strong {
  display: block;
  font-size: 22px;
  color: #1171be;
}

.fixed li .box img {
  width: 120px;
  display: block;
  margin: 0 auto;
}

.fixed li .box p {
  font-size: 14px;
  text-align: center;
}

.fixed li .box:before {
  content:"";
  width: 10px;
  height: 20px;
  position: absolute;
  right: -10px;
  top: 40px;
  background: url(../../images/icon31.png) no-repeat center;
  background-size: cover;
}

.fixed li:hover .box {
  display: block;
}


.sp {
  display: none !important;
}



@media all and (min-width: 992px) and (max-width: 1600px) {
  #gHeader {
    padding: 0 5%;
  }

  #gNavi>ul>li>a {
    padding: 0 16px
  }

  #gNavi>ul>li .drop .lnav li {
    padding: 0 20px;
  }

  #gHeader>.clearfix {
    max-width: 1400px;
    margin: 0 auto;
  }

  #gHeader .ss form input.tex {
    box-sizing: border-box;
  }

  #gFooter .lBox {
    padding-right: 20px;
  }

  #gFooter .lBox p {
    overflow-wrap: anywhere;
  }

}


@media all and (min-width: 992px) and (max-width: 1440px) {
  .container {
    width: 86%;
  }

  #gHeader {
    padding: 0 3%;
  }

  #gHeader .ss {
    margin-left: 10px;
  }

  #gHeader .logo a img {
    width: clamp(155px, 14vw, 200px);
  }

  #gNavi>ul>li>a {
    padding-inline: clamp(7px, .7vw, 10px);
    font-size: 17px;
  }
  #gNavi>ul>li .drop {
	padding:5px 0
  }
  #gNavi>ul>li .drop1 a {
	font-size:15px
  }

  #gNavi>ul>li .drop .lnav {
	width:25%
  }
  #gNavi>ul>li .drop .lnav li {
	padding:0 10px
  }
  #gNavi>ul>li .drop .rnav {
	width:73%
  }
  #gNavi>ul>li .drop .rnav li {
	width:33.33%
  }


  #gFooter h3 {
    font-size: 19px;
  }

}


@media all and (min-width: 992px) and (max-width: 1360px) {

  #gHeader .logo a img {
    width: 200px;
    margin-top: 21px;
  }

  #gNavi>ul>li>a {
    padding: 0 10px;
	font-size:16px
  }
}


@media all and (min-width: 992px) and (max-width: 1280px) {
  .container {
    width: 90%;
  }

  #gHeader .logo a img {
    width: 190px;
    margin-top: 22px;
  }

  #gHeader .ss {
    display: none;
  }

  #gNavi>ul>li>a {
    font-size: 16px;
  }
  #gNavi>ul>li:nth-child(2) .drop {
	left:15%;
	right:15%
  }
}


@media all and (min-width: 0) and (max-width: 767px) {

  .sp {
    display: block !important;
  }

  .pc {
    display: none !important;
  }



}

/* 3. 320px ~ 991px：导航换行，页脚两列 */
@media all and (min-width: 0px) and (max-width: 991px) {
  .container {
    width: 92%;
    margin-inline: auto;
  }

  #gHeader {
    position: relative;
    padding: 14px 4% 0;
    background: #fff;
  }

  #gHeader>.clearfix {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
  }

  #gHeader>.clearfix:after {
    display: none;
  }

  #gHeader .logo {
    float: none;
    background: #1171be;
    padding: 8px 12px;
    border-radius: 4px;
  }

  #gHeader .logo a img {
    width: 170px;
    margin-top: 0;
  }

  #gHeader .ss {
    display: block;
    float: none;
    height: auto;
    margin: 0 0 0 auto;
    padding: 0;
  }

  #gHeader .ss form {
    width: 155px;
    margin: 0;
  }

  #gHeader .ss form input.tex {
    box-sizing: border-box;
    color: #333;
    line-height: 36px;
    padding-right: 40px;
  }

  #gHeader .ss form input.tex::placeholder {
    color: #777;
  }

  #gHeader .ss form input.btn {
    height: 36px;
    background-image: url(../../images/ss1.png);
  }

  #gNavi {
    float: none;
    width: 100%;
  }

  #gNavi>ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
  }

  #gNavi>ul>li>a {
    padding: 0 12px;
    line-height: 44px;
    font-size: 15px;
    color: #333;
    text-shadow: none;
  }

  #gNavi>ul>li.on>a {
    color: #1171be;
  }

  #gNavi>ul>li.on>a:before {
    bottom: 2px;
    background: #1171be;
  }

  #gNavi>ul>li .drop {
    left: 0;
    right: 0;
    top: 100%;
    padding: 16px;
    box-sizing: border-box;
    background: #fff;
    box-shadow: 0 8px 16px #0002;
    max-height: 65vh;
    overflow-y: auto;
  }

  #gNavi>ul>li .drop .lnav {
    width: 32%;
  }

  #gNavi>ul>li .drop .lnav li {
    padding: 0 6px;
  }

  #gNavi>ul>li .drop .rnav {
    width: 66%;
  }

  #gNavi>ul>li .drop .rnav li {
    width: 50%;
  }

  #gNavi>ul>li .drop1 {
    min-width: 150px;
    left: auto;
  }

  #gFooter>.container:first-child {
    display: flex;
    flex-wrap: wrap;
    row-gap: 24px;
  }

  #gFooter .lBox,
  #gFooter .mBox,
  #gFooter .mBox1,
  #gFooter .rBox {
    float: none;
    width: 50%;
    box-sizing: border-box;
    padding-right: 16px;
  }

  #gFooter .power {
    padding: 12px 4%;
    line-height: 24px;
    overflow-wrap: anywhere;
  }

  .sec .title {
    padding: 30px 0 20px;
  }

  .sec .title h2 {
    font-size: 28px;
  }
}

/* 4. 320px ~ 767px：压缩留白，保证导航和按钮可点击 */
@media all and (min-width: 0px) and (max-width: 767px) {
  body {
    font-size: 14px;
  }

  #main {
    padding-bottom: 28px;
  }

  #gNavi>ul>li {
    flex: 0 0 25%;
    text-align: center;
  }

  #gNavi>ul>li>a {
    padding-inline: 4px;
    font-size: 14px;
  }

  #gNavi>ul>li:nth-child(4) {
    position: static;
  }

  #gNavi>ul>li .drop {
    text-align: left;
  }

  #gNavi>ul>li .drop1 {
    left: 0;
  }

  #gNavi>ul>li .drop .lnav,
  #gNavi>ul>li .drop .rnav {
    width: 100%;
    float: none;
  }

  #gNavi>ul>li .drop .rnav li a {
    white-space: normal;
    overflow-wrap: anywhere;
    padding: 5px;
  }

  .sec .title {
    padding: 24px 0 16px;
  }

  .sec .title h2 {
    font-size: 25px;
  }

  .sec .more {
    padding-top: 20px;
  }

  .sec .more a {
    line-height: 34px;
    box-sizing: border-box;
  }
}

/* 5. ≤480px：页脚单列，搜索和文字适配手机 */
@media all and (max-width: 480px) {
  .container {
    width: calc(100% - 32px);
  }

  #gHeader .logo a img {
    width: 140px;
  }

  #gHeader .ss {
    width: 100%;
    margin: 0;
  }

  #gHeader .ss form {
    width: 100%;
  }

  #gFooter .lBox,
  #gFooter .mBox,
  #gFooter .mBox1,
  #gFooter .rBox {
    width: 100%;
    padding: 0;
  }

  #gFooter .mBox .ul1 li {
    float: none;
    width: 100%;
  }

  #gFooter .rBox .ewm .img {
    float: none;
    width: 100%;
    margin: 0 0 18px;
  }

  .sec .title h2 {
    font-size: 23px;
  }

  .sec .more a {
    width: 100%;
  }
}

/* ===== 第二轮补充：头尾交互及全站字号；保留前面的原样式 ===== */
/* 1. 992px ~ 1600px：桌面字号、图标随视口平滑调整。
   min-width:1601px 分支仅用于隐藏移动按钮，不增加新的布局档位。 */
@media all and (min-width: 992px) and (max-width: 1600px),
all and (min-width: 1601px) {
  #gHeader .header-actions {
    display: none;
  }

  body {
    font-size: clamp(14px, 1vw, 16px);
  }

  #main .sec .title h2 {
    font-size: clamp(28px, 2.2vw, 34px);
  }

  #gFooter h3 {
    font-size: clamp(18px, 1.4vw, 22px);
  }

  #main .sec1 ul li b {
    width: clamp(32px, 2.5vw, 42px);
    line-height: 1;
  }

  #main .sec4 .text li span {
    width: clamp(28px, 2.2vw, 36px);
    line-height: 1;
  }
}

/* 2. 992px ~ 1440px：中等桌面统一标题、正文和小图标 */
@media all and (min-width: 992px) and (max-width: 1440px) {

  #main .sec3 .box .top h3,
  #main .proBox .dl dl dd a h3 {
    font-size: 20px;
  }

  #main .sec2 .box .ul2 li h3,
  #main .faBox .list2 li a h3 {
    font-size: 18px;
  }

  #main .proBox .frBox .comBox .text h1,
  #main .proBox .nlBox .title h1 {
    font-size: 25px;
  }

  #main .abBox1 .abl h2 {
    font-size: 28px;
  }

  #main .abBox1 .tex p,
  #main .sec4 .text .tex p {
    font-size: 15px;
    line-height: 1.85;
  }

  #main .sec .more a img,
  #main .proBox .posi img {
    width: 20px;
    height: auto;
  }
}

/* 3. 320px ~ 991px：初始隐藏导航和搜索；按钮展开；首页切换 logo1.png */
@media all and (min-width: 0px) and (max-width: 991px) {
  #container #gHeader {
    position: relative;
    padding: 12px 4%;
    border-bottom: 1px solid #edf1f5;
  }

  #gHeader>.clearfix {
    gap: 0;
  }

  #gHeader .logo {
    padding: 0;
    background: none;
    border-radius: 0;
  }

  #gHeader .logo a img {
    width: clamp(140px, 22vw, 190px);
    height: auto;
  }

  #gHeader .header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
  }

  #gHeader .header-actions button {
    position: relative;
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid #e2eaf2;
    border-radius: 8px;
    background: #f5f9fc;
    color: #1171be;
    cursor: pointer;
  }

  #gHeader .header-actions button:focus-visible {
    outline: 2px solid #1171be;
    outline-offset: 2px;
  }

  #gHeader .header-actions button[aria-expanded="true"] {
    background: #e3f1fc;
    border-color: #1171be;
  }

  #gHeader .menu span,
  #gHeader .menu span:before,
  #gHeader .menu span:after {
    display: block;
    width: 20px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
  }

  #gHeader .menu span {
    position: relative;
  }

  #gHeader .menu span:before,
  #gHeader .menu span:after {
    content: '';
    position: absolute;
    left: 0;
  }

  #gHeader .menu span:before {
    top: -6px;
  }

  #gHeader .menu span:after {
    top: 6px;
  }

  #gHeader .search-toggle span {
    position: relative;
    width: 13px;
    height: 13px;
    border: 2px solid currentColor;
    border-radius: 50%;
    margin: -4px 0 0 -4px;
  }

  #gHeader .search-toggle span:after {
    content: '';
    position: absolute;
    width: 8px;
    height: 2px;
    background: currentColor;
    right: -6px;
    bottom: -3px;
    transform: rotate(45deg);
  }

  #gHeader #gNavi,
  #gHeader .ss {
    display: none;
    float: none;
    width: 100%;
    margin: 0;
    padding: 12px 0 0;
    flex-basis: 100%;
  }

  #gHeader .ss form {
    width: 100%;
    margin: 0;
    border-radius: 8px;
  }

  #gHeader .ss form input.tex {
    font-size: 16px;
    line-height: 44px;
  }

  #gHeader .ss form input.btn {
    height: 44px;
    width: 44px;
  }

  #gNavi>ul {
    justify-content: flex-start;
  }

  #gNavi>ul>li {
    position: static;
    flex: 0 0 25%;
    text-align: center;
  }

  #gNavi>ul>li:nth-child(4) {
    position: static;
  }

  #gNavi>ul>li>a {
    font-size: 15px;
    padding-inline: 4px;
  }

  #gNavi>ul>li .drop {
    top: 100%;
    left: 0;
    right: 0;
  }

  #main .sec3 .box .top h3,
  #main .proBox .dl dl dd a h3 {
    font-size: 20px;
  }

  #main .proBox .nlBox .title h1 {
    font-size: 24px;
    line-height: 1.5;
  }

  #main .sec1 ul li b {
    width: 34px;
    line-height: 1;
  }

  #main .abBox1 .tex p {
    font-size: 15px;
    line-height: 1.85;
  }
}

/* 4. 320px ~ 767px：页脚模块全宽，导航和产品目录多列 */
@media all and (min-width: 0px) and (max-width: 767px) {
  #gFooter {
    padding-top: 28px;
    font-size: 14px;
  }

  #gFooter>.container:first-child {
    row-gap: 10px;
  }

  #gFooter .lBox,
  #gFooter .mBox,
  #gFooter .mBox1,
  #gFooter .rBox {
    width: 100%;
    float: none;
    padding: 0;
  }

  #gFooter .mBox .dl {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  #gFooter .mBox .dl:after {
    display: none;
  }

  #gFooter .mBox .dl dl {
    min-width: 0;
  }

  #gFooter .mBox .dl dt {
    margin-bottom: 6px;
  }

  #gFooter .mBox .dl dd a {
    display: block;
    padding-block: 6px;
    overflow-wrap: anywhere;
  }

  #gFooter .mBox ul {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 4px 12px;
  }

  #gFooter .mBox .ul1 li,
  #gFooter .mBox ul li {
    float: none;
    width: auto;
    min-width: 0;
  }

  #gFooter .mBox ul li a {
    display: block;
    line-height: 1.6;
    overflow-wrap: anywhere;
  }

  #gFooter h3 {
    font-size: 18px;
    margin-bottom: 12px;
  }

  #gFooter h3 span {
    font-size: 13px;
  }

  #gFooter .rBox .ewm {
    display: flex;
    justify-content: flex-start;
    gap: 20px;
    padding-top: 0;
  }

  #gFooter .rBox .ewm .img {
    float: none;
    width: auto;
    margin: 0;
    font-size: 13px;
  }

  #gFooter .rBox .ewm .img img {
    width: 100%;
    max-width: 110px;
    height: auto;
  }

  #gFooter .power,
  #gFooter .fLink a {
    font-size: 13px;
  }

  #main .sec2 .box .ul2 li h3,
  #main .faBox .list2 li a h3,
  #main .lkBox .ul1 li a h3,
  #main .lkBox1 .ul2 li a h3 {
    font-size: 17px;
    line-height: 1.6;
  }

  #main .sec3 .box li a {
    font-size: 15px;
    line-height: 1.8;
    padding-block: 8px;
    background-size: 18px;
  }

  #main .proBox .nlBox .title h1,
  #main .proBox .frBox .comBox .text h1 {
    font-size: 22px;
  }

  #main .sec4 .text li strong,
  #main .proBox .abUl ul li strong {
    font-size: 28px;
  }

  #main .sec4 .text li b,
  #main .proBox .abUl ul li strong b {
    font-size: 20px;
  }

  #main .proBox .posi,
  #main .proBox .nlBox .title p {
    font-size: 13px;
  }

  #main .sec .more a img,
  #main .proBox .posi img,
  #main .lkBox .ul1 li a span img {
    width: 18px;
    height: auto;
  }

  #main .sec4 .text li span,
  #main .proBox .abUl ul li span {
    width: 30px;
    height: 30px;
    line-height: 30px;
  }

  #main .sec6 .swiper-slide a .pho:after {
    width: 42px;
    height: 42px;
    background-size: 17px;
  }
}

/* 5. ≤480px：隐藏首页优势模块，进一步适配文字和图标 */
@media all and (max-width: 480px) {
  #main .sec1 {
    display: none;
  }

  #gNavi>ul>li>a {
    font-size: 14px;
  }

  #gFooter .mBox ul {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  #main .sec3 .box .top h3,
  #main .proBox h3.titl {
    font-size: 19px;
  }

  #main .sec3 .box .top strong {
    font-size: 34px;
  }

  #main .sec3 .box .top span {
    font-size: 12px;
  }

  #main .abBox1 .abl h2 {
    font-size: 24px;
  }

  #main .proBox .frBox .comBox .text .jg strong {
    font-size: 23px;
  }

  #main .faBox .list1 li a span {
    width: 28px;
    height: 28px;
    background-size: 28px;
  }

  #main .sec5 a p,
  #main .faBox .list2 li a p,
  #main .proBox .dl dl dd a p {
    font-size: 14px;
    line-height: 1.8;
  }
}

/* ===== 320px ~ 991px：头部悬浮下拉，一级导航单行，二级分类统一 ===== */
@media all and (min-width: 0px) and (max-width: 991px) {

  #gHeader #gNavi,
  #gHeader .ss {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    width: 100%;
    margin: 0;
    padding: 12px 4%;
    box-sizing: border-box;
    background: #fff;
    border-top: 1px solid #edf1f5;
    box-shadow: 0 10px 20px rgba(25, 63, 94, .14);
    z-index: 101;
  }

  #gHeader #gNavi {
    max-height: calc(100dvh - 100px);
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  #gNavi>ul {
    display: block;
  }

  #gNavi>ul>li {
    display: block;
    width: 100%;
    text-align: left;
    border-bottom: 1px solid #edf1f5;
  }

  #gNavi>ul>li:last-child {
    border-bottom: 0;
  }

  #gNavi>ul>li>a {
    padding: 0 12px;
    line-height: 46px;
    font-size: 15px;
  }

  #gNavi>ul>li>a:before,
  #gNavi>ul>li.on>a:before {
    display: none;
  }

  #gNavi>ul>li:has(> .drop)>a:after {
    content: '+';
    float: right;
    color: #1171be;
    font-size: 20px;
    font-weight: 400;
  }

  #gNavi>ul>li .drop,
  #gNavi>ul>li .drop1 {
    position: static;
    width: 100%;
    min-width: 0;
    max-height: none;
    margin: 0 0 10px;
    padding: 4px 12px;
    border-radius: 6px;
    background: #f3f8fc;
    box-shadow: none;
    overflow: visible;
    box-sizing: border-box;
  }

  #gNavi>ul>li .drop .container {
    width: 100%;
    max-width: none;
    margin: 0;
  }

  #gNavi>ul>li .drop .lnav {
    float: none;
    width: 100%;
  }

  #gNavi>ul>li .drop .rnav {
    display: none;
  }

  #gNavi>ul>li .drop .lnav li,
  #gNavi>ul>li .drop .lnav li.on {
    padding: 0;
    border: 0;
    background: none;
  }

  #gNavi>ul>li .drop .lnav li a,
  #gNavi>ul>li .drop .lnav li.on a,
  #gNavi>ul>li .drop1>a {
    display: block;
    padding: 10px 12px;
    min-height: 44px;
    box-sizing: border-box;
    line-height: 24px;
    font-size: 14px;
    font-weight: 400;
    color: #465b6c;
    border: 0;
    border-bottom: 1px solid #e2ebf2;
    overflow-wrap: anywhere;
  }

  #gNavi>ul>li .drop .lnav li:last-child a,
  #gNavi>ul>li .drop1>a:last-child {
    border-bottom: 0;
  }

  #gNavi>ul>li .drop .lnav li a:hover,
  #gNavi>ul>li .drop1>a:hover,
  #gNavi>ul>li .drop .lnav li a:focus-visible,
  #gNavi>ul>li .drop1>a:focus-visible {
    color: #1171be;
    background: #e6f0f8;
  }
}