/* =========================================================
   驷达石材 SIDA STONE — 全站样式
   主色调：白色 + 深绿（Pantone 356 C ≈ #00543D）
   兼容：IE11+ / 现代浏览器 / 移动端（375px~1920px）
   ========================================================= */

/* ---------- Reset ---------- */
html, body, div, span, h1, h2, h3, h4, p, a, img, ul, ol, li,
form, input, textarea, button, table, tbody, tr, th, td, article, aside,
header, footer, nav, section, figure, figcaption {
  margin: 0;
  padding: 0;
  border: 0;
  box-sizing: border-box;
}
html { -webkit-text-size-adjust: 100%; }
html, body { overflow-x: hidden; }
body {
  font-family: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.75;
  color: #333333;
  background: #ffffff;
}
ul, ol { list-style: none; }
img { max-width: 100%; vertical-align: middle; }
a { color: #00543D; text-decoration: none; }
a:hover { color: #0B7A57; }
h1, h2, h3, h4 { font-weight: 700; line-height: 1.35; }
button, input, textarea { font-family: inherit; font-size: inherit; outline: none; }

/* ---------- 布局容器 ---------- */
.container { max-width: 1400px; margin: 0 auto; padding: 0 30px; }
.container:after, .grid:after, .footer-cols:after, .clearfix:after {
  content: "";
  display: table;
  clear: both;
}

/* ---------- 顶部导航（顶部合并满宽；向下滚动后悬浮收缩） ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 76px;
  background: #ffffff;
  border-radius: 0;
  box-shadow: 0 1px 0 rgba(0, 84, 61, 0.08), 0 2px 12px rgba(0, 0, 0, 0.04);
  -webkit-transition: top .35s ease, left .35s ease, right .35s ease, border-radius .35s ease, box-shadow .35s ease;
  transition: top .35s ease, left .35s ease, right .35s ease, border-radius .35s ease, box-shadow .35s ease;
}
body.scrolled .site-header {
  top: 80px; left: 25%; right: 25%;
  border-radius: 8px;
  box-shadow: 0 12px 36px rgba(0, 38, 28, 0.18);
}
.header-inner {
  position: relative;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 30px;
  height: 76px;
}
/* 首页：菜单与页脚同为深墨绿底（其他页面保持白色） */
body[data-page="home"] .site-header {
  background: #00392a;
  box-shadow: 0 2px 12px rgba(0, 24, 18, 0.22);
}
body[data-page="home"].scrolled .site-header {
  box-shadow: 0 12px 36px rgba(0, 24, 18, 0.32);
}
body[data-page="home"] .logo-img {
  height: 44px;
  width: auto;
}
body[data-page="home"] .logo-text { color: #ffffff; }
body[data-page="home"] .logo-sub { color: rgba(255, 255, 255, 0.78); }
body[data-page="home"] .main-nav a { color: #ffffff; }
body[data-page="home"] .main-nav a.active:after { background: #ffffff; }
body[data-page="home"] .main-nav > li > a:hover,
body[data-page="home"] .main-nav > li:hover > a {
  background: #ffffff;
  color: #00392a;
}
/* 首页下拉框与菜单同底色（深墨绿），缓慢弹出；菜单项 hover 白底深字 */
body[data-page="home"] .sub-nav {
  background: #00392a;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-top: 2px solid #ffffff;
  box-shadow: 0 14px 34px rgba(0, 24, 18, 0.38);
}
body[data-page="home"] .sub-nav a { color: #ffffff; }
body[data-page="home"] .sub-nav a:hover {
  background: #ffffff;
  color: #00392a;
  font-weight: 500;
  box-shadow: inset 3px 0 0 #ffffff;
}
body[data-page="home"] .nav-toggle span,
body[data-page="home"] .nav-toggle span:before,
body[data-page="home"] .nav-toggle span:after { background: #ffffff; }
.logo {
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  -ms-flex-align: center;
  -webkit-align-items: center;
  align-items: center;
  height: 76px;
  float: left;
}
.logo-img { width: auto; height: 44px; }
.logo-text {
  margin-left: 12px;
  color: #00543D;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 2px;
  line-height: 1.1;
}
.logo-sub {
  display: block;
  font-size: 10px;
  font-weight: 400;
  color: #7fa396;
  letter-spacing: 4px;
  margin-top: 3px;
}
/* 导航水平居中：绝对定位 + 位移（IE11 兼容） */
.main-nav {
  position: absolute;
  left: 50%;
  top: 0;
  height: 76px;
  -webkit-transform: translateX(-50%);
  -ms-transform: translateX(-50%);
  transform: translateX(-50%);
  white-space: nowrap;
}
.main-nav li { display: inline-block; position: relative; }
.main-nav a {
  display: block;
  line-height: 76px;
  padding: 0 22px;
  color: #2b3a34;
  font-size: 16px;
  font-weight: 500;
  position: relative;
  -webkit-transition: background .2s ease, color .2s ease;
  transition: background .2s ease, color .2s ease;
}
.main-nav a:hover, .main-nav a.active { color: #00543D; }
/* 主导航 hover / 下拉展开期间：浅绿底 + 深绿字，形成明显对比 */
.main-nav > li > a:hover,
.main-nav > li:hover > a {
  background: #e8f2ed;
  color: #00543D;
}
.main-nav a.active:after {
  content: "";
  position: absolute;
  left: 22px; right: 22px; bottom: 14px;
  height: 3px;
  background: #00543D;
  border-radius: 2px;
}

/* ---------- 产品展示下拉子菜单（等宽 + 从上往下缓慢展开） ---------- */
.sub-nav {
  position: absolute;
  top: 100%; left: 0;
  width: 100%;
  min-width: 0;
  background: #ffffff;
  border: 1px solid #e2eae5;
  border-top: 2px solid #00543D;
  border-radius: 0 0 6px 6px;
  box-shadow: 0 12px 30px rgba(0, 60, 44, 0.12);
  opacity: 0;
  visibility: hidden;
  -webkit-transform: scaleY(0.6);
  -ms-transform: scaleY(0.6);
  transform: scaleY(0.6);
  -webkit-transform-origin: top center;
  -ms-transform-origin: top center;
  transform-origin: top center;
  -webkit-transition: opacity .42s ease, visibility .42s ease, -webkit-transform .42s ease;
  transition: opacity .42s ease, visibility .42s ease, transform .42s ease;
  z-index: 150;
}
.has-sub:hover > .sub-nav,
.has-sub:focus-within > .sub-nav {
  opacity: 1;
  visibility: visible;
  -webkit-transform: scaleY(1);
  -ms-transform: scaleY(1);
  transform: scaleY(1);
}
.sub-nav li { display: block; }
.sub-nav a {
  display: block;
  line-height: 44px;
  padding: 0 12px;
  text-align: center;
  font-size: 15px;
  color: #2b3a34;
  font-weight: 400;
  white-space: nowrap;
  -webkit-transition: background .2s ease, color .2s ease, box-shadow .2s ease;
  transition: background .2s ease, color .2s ease, box-shadow .2s ease;
}
.sub-nav a:hover {
  background: #d6e9e0;
  color: #00543D;
  font-weight: 500;
  box-shadow: inset 3px 0 0 #00543D;
}
.sub-nav a:first-child { border-radius: 0; }
.sub-nav a:after { display: none !important; }
/* ---------- 顶部搜索框（模糊搜索 + 实时提示） ---------- */
.header-search {
  float: right;
  position: relative;
  width: 230px;
  margin: 19px 0 0 22px;
}
.search-input {
  box-sizing: border-box;
  width: 100%;
  height: 38px;
  padding: 0 44px 0 15px;
  border: 1px solid #d8e2dc;
  border-radius: 19px;
  background: #f5f9f7;
  color: #2b3a34;
  font-size: 14px;
  line-height: 20px;
  -webkit-transition: border-color .25s ease, background .25s ease, box-shadow .25s ease;
  transition: border-color .25s ease, background .25s ease, box-shadow .25s ease;
}
.search-input::-ms-clear { display: none; }
.search-input:focus {
  border-color: #00543D;
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(0, 84, 61, 0.08);
}
.search-btn {
  position: absolute;
  top: 0; right: 0;
  width: 42px; height: 38px;
  background-color: transparent;
  border: 0;
  cursor: pointer;
  border-radius: 0 19px 19px 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%2300543D' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  -webkit-transition: background-color .2s ease;
  transition: background-color .2s ease;
}
.search-btn:hover {
  background-color: #00543D;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3C/svg%3E");
}
.search-drop {
  display: none;
  position: absolute;
  top: 46px; right: 0;
  width: 340px;
  max-height: 430px;
  overflow-y: auto; overflow-x: hidden;
  background: #ffffff;
  border: 1px solid #e2eae5;
  border-radius: 8px;
  box-shadow: 0 16px 40px rgba(0, 60, 44, 0.16);
  z-index: 210;
}
.search-drop.open { display: block; }
.sd-group {
  padding: 10px 16px 2px;
  font-size: 12px;
  color: #98a49e;
  letter-spacing: 1px;
}
.sd-item { display: block; padding: 9px 16px; }
.sd-item:hover, .sd-item.active { background: #f2f8f5; }
.sd-item h4 {
  font-size: 14px;
  font-weight: 500;
  color: #1d2b25;
  line-height: 1.5;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.sd-item p {
  font-size: 12px;
  color: #98a49e;
  margin-top: 1px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.sd-item em, .search-result-bar em { font-style: normal; color: #00543D; font-weight: 700; }
.sd-empty { padding: 18px 16px 16px; font-size: 13px; color: #7a8880; }
.sd-cats { margin-top: 6px; }
.sd-cats a {
  display: inline-block;
  margin: 6px 6px 0 0;
  padding: 4px 13px;
  font-size: 12px;
  color: #00543D;
  background: #e8f2ed;
  border-radius: 12px;
}
.sd-cats a:hover { background: #d6e9e0; color: #00543D; }
.sd-foot {
  padding: 9px 16px 11px;
  border-top: 1px solid #eef3f0;
  font-size: 12px;
  color: #98a49e;
}

/* 产品/案例/新闻搜索结果条（products.html?q=） */
.search-result-bar {
  display: none;
  text-align: center;
  margin: -8px 0 38px;
  font-size: 15px;
  color: #2b3a34;
}
.search-result-bar strong { color: #00543D; }
.search-result-bar .clear-link {
  margin-left: 16px;
  font-size: 13px;
  color: #00543D;
  border-bottom: 1px dashed #00543D;
}

/* 移动端汉堡按钮 */
.nav-toggle {
  display: none;
  float: right;
  width: 44px; height: 44px;
  margin-top: 16px;
  background: transparent;
  cursor: pointer;
  position: relative;
}
.nav-toggle span, .nav-toggle span:before, .nav-toggle span:after {
  content: "";
  position: absolute;
  left: 10px;
  width: 24px; height: 2px;
  background: #00543D;
  transition: all .25s;
}
.nav-toggle span { top: 21px; }
.nav-toggle span:before { top: -7px; }
.nav-toggle span:after { top: 7px; }
.nav-open .nav-toggle span { background: transparent; }
.nav-open .nav-toggle span:before { top: 0; -webkit-transform: rotate(45deg); -ms-transform: rotate(45deg); transform: rotate(45deg); }
.nav-open .nav-toggle span:after { top: 0; -webkit-transform: rotate(-45deg); -ms-transform: rotate(-45deg); transform: rotate(-45deg); }

/* ---------- 全屏轮播 Banner ---------- */
.banner {
  position: relative;
  height: 100vh;
  min-height: 480px;
  background: #00392a;
  overflow: hidden;
}
.banner-slide {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  display: block;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  opacity: 0;
  visibility: hidden;
  -webkit-transition: opacity 1s ease, visibility 1s ease;
  transition: opacity 1s ease, visibility 1s ease;
}
.banner-slide.active { opacity: 1; visibility: visible; z-index: 2; }
/* Banner 背景：默认 jpg，支持 WebP 的浏览器自动切换 */
.bg-b1 { background-image: url("../images/banners/b1.jpg"); }
.bg-b2 { background-image: url("../images/banners/b2.jpg"); }
.bg-b3 { background-image: url("../images/banners/b3.jpg"); }
html.webp .bg-b1 { background-image: url("../images/banners/b1.webp"); }
html.webp .bg-b2 { background-image: url("../images/banners/b2.webp"); }
html.webp .bg-b3 { background-image: url("../images/banners/b3.webp"); }
/* 底部渐变遮罩，提升品牌信息可读性 */
.banner-mask {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 34%;
  z-index: 3;
  background: -webkit-linear-gradient(top, rgba(0, 40, 29, 0), rgba(0, 40, 29, 0.55));
  background: linear-gradient(to bottom, rgba(0, 40, 29, 0), rgba(0, 40, 29, 0.55));
  pointer-events: none;
}
.banner-slogan {
  position: absolute;
  left: 0; right: 0; bottom: 90px;
  z-index: 4;
  text-align: center;
  color: #ffffff;
  pointer-events: none;
}
.banner-slogan h1 { font-size: 40px; letter-spacing: 6px; text-shadow: 0 2px 12px rgba(0, 0, 0, 0.35); }
.banner-slogan p { font-size: 16px; letter-spacing: 3px; margin-top: 10px; color: #dcebe4; }

.banner-arrow {
  position: absolute;
  top: 50%;
  z-index: 6;
  width: 52px; height: 52px;
  margin-top: -26px;
  line-height: 48px;
  text-align: center;
  font-size: 26px;
  color: #ffffff;
  background: rgba(0, 84, 61, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 50%;
  cursor: pointer;
  -webkit-transition: background .3s;
  transition: background .3s;
  user-select: none;
}
.banner-arrow:hover { background: rgba(0, 84, 61, 0.75); color: #fff; }
.banner-arrow.prev { left: 30px; }
.banner-arrow.next { right: 30px; }
.banner-dots {
  position: absolute;
  left: 0; right: 0; bottom: 28px;
  z-index: 6;
  text-align: center;
}
.banner-dots .dot {
  display: inline-block;
  width: 12px; height: 12px;
  margin: 0 6px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.45);
  border: 1px solid rgba(255, 255, 255, 0.8);
  cursor: pointer;
  -webkit-transition: all .3s;
  transition: all .3s;
}
.banner-dots .dot.active { background: #ffffff; width: 26px; border-radius: 8px; }

/* ---------- 通用区块 ---------- */
.section { padding: 90px 0; }
.section-tint { background: #f5f9f7; }
.sec-head { text-align: center; margin-bottom: 54px; }
.sec-head h2 {
  font-size: 32px;
  color: #1d2b25;
  letter-spacing: 2px;
}
.sec-head h2 i {
  display: block;
  width: 46px; height: 4px;
  background: #00543D;
  border-radius: 2px;
  margin: 16px auto 0;
}
.sec-head p { color: #7a8880; margin-top: 14px; font-size: 15px; }

/* ---------- 卡片网格（图片上 + 文字下，hover 放大） ---------- */
.grid { margin: 0 -12px; }
.col-4 { float: left; width: 25%; padding: 0 12px; margin-bottom: 24px; }
.col-3 { float: left; width: 33.3333%; padding: 0 12px; margin-bottom: 24px; }
.col-2 { float: left; width: 50%; padding: 0 12px; margin-bottom: 24px; }
.card {
  display: block;
  background: #ffffff;
  border: 1px solid #e7ede9;
  border-radius: 6px;
  overflow: hidden;
  -webkit-transition: box-shadow .3s ease, -webkit-transform .3s ease, transform .3s ease;
  transition: box-shadow .3s ease, transform .3s ease;
}
.card:hover {
  -webkit-transform: translateY(-6px);
  -ms-transform: translateY(-6px);
  transform: translateY(-6px);
  box-shadow: 0 14px 34px rgba(0, 84, 61, 0.14);
  color: inherit;
}
.card .pic {
  position: relative;
  width: 100%;
  padding-bottom: 78%;      /* 图片比例（约 4:3.1） */
  overflow: hidden;
  background: #eef3f0;
}
.card .pic.sq { padding-bottom: 100%; }   /* 产品方形图 */
.card .pic img {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  -webkit-transition: -webkit-transform .55s ease, transform .55s ease;
  transition: transform .55s ease;
}
.card:hover .pic img {
  -webkit-transform: scale(1.08);
  -ms-transform: scale(1.08);
  transform: scale(1.08);
}
.card .info { padding: 18px 18px 20px; }
.card .info h3 {
  font-size: 18px;
  color: #1d2b25;
  overflow: hidden; white-space: nowrap; text-overflow: ellipsis;
}
.card .info p {
  font-size: 14px;
  color: #7a8880;
  margin-top: 8px;
  height: 42px;      /* 固定两行高度，保证同排卡片等高 */
  overflow: hidden;
}
.card .meta {
  margin-top: 12px;
  font-size: 13px;
  color: #98a49e;
  overflow: hidden;
}
.card .meta .cat-tag {
  display: inline-block;
  font-size: 12px;
  color: #00543D;
  background: #e8f2ed;
  border-radius: 3px;
  padding: 2px 10px;
  margin-right: 8px;
}
.card .meta .date { float: right; }

/* ---------- 分类筛选 ---------- */
.filter-bar { text-align: center; margin-bottom: 44px; }
.filter-btn {
  display: inline-block;
  margin: 6px 8px;
  padding: 9px 26px;
  font-size: 15px;
  color: #41544b;
  background: #ffffff;
  border: 1px solid #cfdcd5;
  border-radius: 22px;
  cursor: pointer;
  -webkit-transition: all .25s;
  transition: all .25s;
}
.filter-btn:hover { border-color: #00543D; color: #00543D; }
.filter-btn.active {
  background: #00543D;
  border-color: #00543D;
  color: #ffffff;
}

/* ---------- 首页 CTA 条 ---------- */
.cta-band {
  background: #00543D;
  color: #ffffff;
  padding: 58px 0;
  text-align: center;
}
.cta-band h2 { font-size: 26px; letter-spacing: 2px; }
.cta-band p { color: #cfe4da; margin-top: 8px; }
.btn {
  display: inline-block;
  padding: 12px 40px;
  border-radius: 24px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  -webkit-transition: all .25s;
  transition: all .25s;
}
.btn-primary { background: #00543D; color: #ffffff; border: 1px solid #00543D; }
.btn-primary:hover { background: #00714F; border-color: #00714F; color: #fff; }
.btn-ghost { background: transparent; color: #ffffff; border: 1px solid rgba(255, 255, 255, 0.75); }
.btn-ghost:hover { background: #ffffff; color: #00543D; }
.cta-band .btn { margin-top: 26px; }

/* 更多链接 */
.more-wrap { text-align: center; margin-top: 30px; }
.more-wrap .btn { margin: 0 8px; }

/* 分类页介绍文字 */
.cat-intro {
  max-width: 880px;
  margin: 0 auto 50px;
  text-align: center;
  font-size: 15px;
  line-height: 1.9;
  color: #5b6862;
}

/* ---------- 子页头部 ---------- */
.page-hero {
  background: #00543D;
  background: -webkit-linear-gradient(left, #00392a, #00543D 55%, #0B7A57);
  background: linear-gradient(to right, #00392a, #00543D 55%, #0B7A57);
  color: #ffffff;
  padding: 96px 0 56px;
  text-align: center;
  -webkit-transition: padding .35s ease;
  transition: padding .35s ease;
}
body.scrolled .page-hero { padding-top: 176px; }
.page-hero h1 { font-size: 34px; letter-spacing: 4px; }
.page-hero p { color: #cfe4da; margin-top: 10px; font-size: 15px; letter-spacing: 1px; }
.crumb {
  padding: 98px 0 0;   /* 顶部合并态：让出贴顶头部高度 */
  font-size: 13px;
  color: #8b978f;
  -webkit-transition: padding .35s ease;
  transition: padding .35s ease;
}
body.scrolled .crumb { padding-top: 176px; }
.crumb a { color: #8b978f; }
.crumb a:hover { color: #00543D; }
.crumb span.sep { margin: 0 8px; color: #c3cdc7; }

/* ---------- 详情页 ---------- */
.detail-wrap { padding: 46px 0 80px; }
.detail-main { float: left; width: 62%; }
.detail-side { float: right; width: 34%; }
.detail-pic {
  position: relative;
  width: 100%;
  padding-bottom: 72%;
  overflow: hidden;
  border-radius: 8px;
  background: #eef3f0;
  border: 1px solid #e7ede9;
}
.detail-pic img { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
.detail-main h1 { font-size: 28px; color: #1d2b25; margin-top: 26px; }
.detail-main .detail-desc { color: #5b6862; margin-top: 16px; }
.detail-main .detail-desc p { margin-bottom: 14px; }
.spec-table { width: 100%; border-collapse: collapse; margin-top: 10px; }
.spec-table th, .spec-table td {
  border: 1px solid #e2eae5;
  padding: 10px 14px;
  font-size: 14px;
  text-align: left;
}
.spec-table th { background: #f2f8f5; color: #33443c; width: 90px; font-weight: 700; }
.side-box {
  border: 1px solid #e7ede9;
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 24px;
  background: #ffffff;
}
.side-box h3 { font-size: 18px; color: #1d2b25; padding-bottom: 12px; border-bottom: 1px solid #e7ede9; }
.side-box ul { margin-top: 12px; }
.side-box li { padding: 7px 0; font-size: 14px; color: #5b6862; position: relative; padding-left: 16px; }
.side-box li:before {
  content: "";
  position: absolute;
  left: 0; top: 16px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #0B7A57;
}
.side-contact { background: #00543D; color: #ffffff; border-color: #00543D; }
.side-contact h3 { color: #ffffff; border-bottom-color: rgba(255, 255, 255, 0.2); }
.side-contact p { font-size: 14px; color: #d5e8df; margin-top: 10px; }
.side-contact strong { font-size: 20px; letter-spacing: 1px; color: #ffffff; }

/* ---------- 新闻列表 ---------- */
.news-card .info h3 { white-space: normal; }

/* ---------- 关于我们 ---------- */
.about-intro { font-size: 15px; color: #4a5851; }
.about-intro p { margin-bottom: 16px; text-indent: 2em; }
.honor-list { margin-top: 10px; }
.honor-list li {
  float: left;
  width: 25%;
  padding: 0 10px;
  margin-bottom: 20px;
  text-align: center;
}
.honor-item {
  border: 1px solid #e2eae5;
  border-radius: 6px;
  padding: 26px 14px;
  background: #ffffff;
  -webkit-transition: all .3s;
  transition: all .3s;
}
.honor-item:hover { border-color: #00543D; box-shadow: 0 10px 24px rgba(0, 84, 61, 0.1); }
.honor-item .num { font-size: 26px; font-weight: 700; color: #00543D; }
.honor-item .txt { font-size: 14px; color: #5b6862; margin-top: 6px; }

/* 联系方式 */
.contact-cols { margin: 0 -14px; }
.contact-col { float: left; width: 33.3333%; padding: 0 14px; }
.contact-card {
  text-align: center;
  border: 1px solid #e2eae5;
  border-radius: 8px;
  padding: 34px 20px;
  background: #ffffff;
}
.contact-card .c-ico {
  width: 54px; height: 54px;
  line-height: 54px;
  margin: 0 auto;
  border-radius: 50%;
  background: #e8f2ed;
  color: #00543D;
  font-size: 22px;
  font-weight: 700;
}
.contact-card h3 { font-size: 17px; margin-top: 16px; color: #1d2b25; }
.contact-card p { font-size: 15px; color: #5b6862; margin-top: 8px; }
.contact-card a { color: #00543D; font-weight: 700; font-size: 18px; }

/* 咨询表单 */
.form-box {
  max-width: 760px;
  margin: 0 auto;
  border: 1px solid #e2eae5;
  border-radius: 8px;
  padding: 40px;
  background: #ffffff;
}
.form-row { margin-bottom: 18px; }
.form-row label {
  display: block;
  font-size: 14px;
  color: #41544b;
  margin-bottom: 8px;
  font-weight: 700;
}
.form-row label em { color: #c0392b; font-style: normal; margin-left: 2px; }
.form-row input, .form-row textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid #cfdcd5;
  border-radius: 4px;
  font-size: 15px;
  color: #333333;
  background: #fbfdfc;
}
.form-row input:focus, .form-row textarea:focus { border-color: #00543D; background: #ffffff; }
.form-row textarea { height: 120px; resize: vertical; }
.form-tip { font-size: 13px; color: #98a49e; margin-top: 8px; }
.form-success {
  display: none;
  text-align: center;
  padding: 40px 20px;
}
.form-success .ok-ico {
  width: 64px; height: 64px;
  line-height: 64px;
  margin: 0 auto;
  border-radius: 50%;
  background: #e8f2ed;
  color: #00543D;
  font-size: 30px;
  font-weight: 700;
}
.form-success h3 { margin-top: 18px; color: #1d2b25; }
.form-success p { color: #7a8880; margin-top: 8px; font-size: 14px; }

/* ---------- 页脚 ---------- */
.site-footer { background: #00392a; color: #b9cdc3; margin-top: 0; }
.footer-cols { padding: 56px 0 40px; }
.f-col { float: left; }
.f-col.f-brand { width: 30%; padding-right: 30px; }
.f-col.f-links { width: 22%; }
.f-col.f-contact { width: 26%; }
.f-col h4 {
  color: #ffffff;
  font-size: 16px;
  letter-spacing: 2px;
  margin-bottom: 18px;
}
.f-col p, .f-col li { font-size: 14px; line-height: 2; color: #9db5aa; }
.f-col li a { color: #9db5aa; }
.f-col li a:hover { color: #ffffff; }
.f-logo-chip {
  display: inline-block;
  width: 46px; height: 46px;
  line-height: 46px;
  text-align: center;
  background: transparent;
  border-radius: 8px;
  vertical-align: middle;
}
.f-logo-chip img { height: 32px; width: auto; vertical-align: middle; }
.f-brand-name {
  display: inline-block;
  vertical-align: middle;
  margin-left: 10px;
  color: #ffffff;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 2px;
}
.f-brand-desc { margin-top: 14px; }
.footer-bar {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 18px 0;
  text-align: center;
  font-size: 13px;
  color: #7f968b;
}
.footer-bar a { color: #7f968b; }
.footer-bar a:hover { color: #ffffff; }

/* ---------- 回到顶部 ---------- */
.back-top {
  position: fixed;
  right: 26px; bottom: 100px;
  z-index: 90;
  width: 46px; height: 46px;
  line-height: 46px;
  text-align: center;
  border-radius: 50%;
  background: #00543D;
  color: #ffffff;
  font-size: 18px;
  cursor: pointer;
  display: none;
  box-shadow: 0 8px 20px rgba(0, 84, 61, 0.35);
}
.back-top:hover { background: #00714F; }

/* =========================================================
   响应式
   ========================================================= */
@media (max-width: 1240px) {
  .main-nav a { padding: 0 14px; font-size: 15px; }
  .col-4 { width: 33.3333%; }
  .header-search { width: 180px; }
}

@media (max-width: 1024px) {
  .detail-main { width: 100%; float: none; }
  .detail-side { width: 100%; float: none; margin-top: 34px; }
  .detail-main h1 { margin-top: 20px; }
}

@media (max-width: 1760px) {
  body.scrolled .site-header { top: 24px; left: 8%; right: 8%; }
}

@media (max-width: 1280px) {
  body.scrolled .site-header { left: 24px; right: 24px; }
}

@media (max-width: 920px) {
  body.scrolled .site-header { top: 12px; left: 12px; right: 12px; border-radius: 6px; }
  .site-header, .header-inner { height: 64px; }
  .logo { line-height: 64px; }
  .logo-img { width: auto; height: 38px; }
  body[data-page="home"] .logo-img { height: 38px; }
  .logo-text { font-size: 20px; margin-left: 9px; }
  .header-search { width: 170px; margin: 13px 0 0 14px; }
  .search-input, .search-btn { height: 36px; }
  .search-drop { top: 44px; width: 300px; }
  .crumb { padding: 84px 0 0; }
  body.scrolled .crumb { padding-top: 92px; }
  .main-nav {
    display: none;
    position: absolute;
    top: 64px; left: 0; right: 0;
    height: auto;
    background: #ffffff;
    border-radius: 0 0 6px 6px;
    box-shadow: 0 14px 24px rgba(0, 0, 0, 0.08);
    -webkit-transform: none;
    -ms-transform: none;
    transform: none;
    white-space: normal;
  }
  .nav-open .main-nav { display: block; }
  .main-nav li { display: block; border-top: 1px solid #eef3f0; }
  .main-nav a { line-height: 50px; padding: 0 26px; }
  .main-nav a.active:after { left: 26px; right: auto; width: 46px; bottom: 8px; }
  /* 移动端子菜单：内嵌展开，点击父项显示 */
  .sub-nav {
    position: static;
    -webkit-transform: none;
    -ms-transform: none;
    transform: none;
    opacity: 1;
    visibility: visible;
    box-shadow: none;
    border: none;
    border-top: 1px solid #eef3f0;
    border-radius: 0;
    display: none;
    background: #f9fcfb;
  }
  .has-sub.open > .sub-nav { display: block; }
  .has-sub > a { position: relative; }
  .has-sub > a:after {
    content: "";
    position: absolute;
    right: 26px; top: 50%;
    width: 8px; height: 8px;
    border-right: 2px solid #00543D;
    border-bottom: 2px solid #00543D;
    -webkit-transform: translateY(-60%) rotate(45deg);
    -ms-transform: translateY(-60%) rotate(45deg);
    transform: translateY(-60%) rotate(45deg);
  }
  .has-sub.open > a:after {
    -webkit-transform: translateY(-30%) rotate(-135deg);
    -ms-transform: translateY(-30%) rotate(-135deg);
    transform: translateY(-30%) rotate(-135deg);
  }
  .sub-nav a { line-height: 46px; padding-left: 42px; padding-right: 16px; text-align: left; font-size: 14px; color: #5b6862; }
  .nav-toggle { display: block; }
  .banner-slogan h1 { font-size: 26px; letter-spacing: 3px; }
  .banner-slogan p { font-size: 14px; }
  .banner-arrow { display: none; }
  .page-hero { padding: 84px 0 40px; }
  body.scrolled .page-hero { padding-top: 120px; }
  .page-hero h1 { font-size: 26px; }
  .section { padding: 56px 0; }
  .sec-head { margin-bottom: 36px; }
  .sec-head h2 { font-size: 24px; }
  .f-col.f-brand, .f-col.f-links, .f-col.f-contact { width: 50%; margin-bottom: 26px; }
  .honor-list li { width: 50%; }
  .col-4 { width: 50%; }
}

@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .header-inner { padding: 0 16px; }
  /* 双行头部：第一行 LOGO+菜单按钮，第二行搜索框 */
  .site-header, .header-inner { height: auto; }
  .logo { height: 60px; line-height: 60px; }
  .nav-toggle { margin-top: 8px; }
  .header-search {
    float: none;
    clear: both;
    width: auto;
    margin: 0;
    padding: 0 0 12px;
  }
  .search-input, .search-btn { height: 38px; }
  .search-drop { top: 44px; right: 0; width: auto; left: 0; }
  .main-nav { top: 110px; }
  .crumb { padding: 122px 0 0; }
  body.scrolled .crumb { padding-top: 136px; }
  .page-hero { padding: 114px 0 40px; }
  body.scrolled .page-hero { padding-top: 140px; }
  .col-4, .col-3 { width: 50%; }
  .col-2 { width: 100%; }
  .contact-col { width: 100%; margin-bottom: 16px; }
  .honor-list li { width: 50%; }
  .f-col.f-brand, .f-col.f-links, .f-col.f-contact { width: 100%; }
  .form-box { padding: 26px 20px; }
  .detail-main h1 { font-size: 22px; }
  .banner-slogan { bottom: 70px; }
  .card .info { padding: 13px 13px 15px; }
  .card .info h3 { font-size: 15px; }
  .card .info p { font-size: 12px; height: 40px; }
  .card .meta { font-size: 12px; margin-top: 8px; }
}

@media (max-width: 380px) {
  .col-4, .col-3 { width: 100%; }
  .honor-list li { width: 100%; }
}