@charset "utf-8";
/* =========================================================
   B&M CASA · BadouCMS 家具企业官网模板
   风格：意式极简 / 轻奢  ·  配色：米白 + 深炭 + 香槟金
   ========================================================= */

:root {
  --c-bg: #FBFAF7;
  --c-white: #FFFFFF;
  --c-ink: #1C1A17;
  --c-ink-2: #3A3630;
  --c-mute: #6E6760;
  --c-mute-2: #938B82;
  --c-line: #E6E0D7;
  --c-line-2: #F0EBE3;
  --c-gold: #A98A5F;
  --c-gold-lt: #C4A87E;
  --c-dark: #1C1A17;
  --container: 1280px;
  --font-serif: Georgia, "Times New Roman", "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --ease: cubic-bezier(.22, .61, .36, 1);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--c-bg);
  color: var(--c-ink);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; border: 0; }
a { color: inherit; text-decoration: none; transition: color .25s var(--ease), opacity .25s var(--ease); }
a:hover { color: var(--c-gold); }
ul, ol { margin: 0; padding: 0; list-style: none; }
p { margin: 0 0 14px; }
h1, h2, h3, h4, h5 { margin: 0; font-weight: 400; font-family: var(--font-serif); line-height: 1.35; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 900px; }

/* ============ 通用文字组件 ============ */
.eyebrow {
  font-size: 12px;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--c-gold);
  font-family: var(--font-sans);
  margin-bottom: 14px;
  display: block;
}
.sec-title {
  font-size: 38px;
  letter-spacing: .04em;
  margin-bottom: 16px;
}
.sec-desc {
  color: var(--c-mute);
  max-width: 640px;
  font-size: 15px;
}
.sec-head { margin-bottom: 56px; }
.sec-head.center { text-align: center; }
.sec-head.center .sec-desc { margin: 0 auto; }
.divider-gold { width: 56px; height: 1px; background: var(--c-gold); margin: 22px 0 0; }
.sec-head.center .divider-gold { margin: 22px auto 0; }

.section { padding: 100px 0; }
.section-sm { padding: 64px 0; }
.section-dark { background: var(--c-dark); color: #E8E2D9; }
.section-dark h2, .section-dark h3 { color: #fff; }
.section-cream { background: #F4F0EA; }

/* ============ 顶部条 ============ */
.topbar {
  background: var(--c-dark);
  color: #B9B2A8;
  font-size: 13px;
}
.topbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 42px;
}
.topbar a { color: #B9B2A8; }
.topbar a:hover { color: var(--c-gold-lt); }
.topbar-left span { margin-right: 24px; display: inline-flex; align-items: center; gap: 6px; }
.topbar-right { display: flex; align-items: center; gap: 18px; }
.lang-switch { display: flex; gap: 10px; }
.lang-switch a { padding: 0 6px; }
.lang-switch a.on { color: var(--c-gold-lt); }

/* ============ Header ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 900;
  background: rgba(251, 250, 247, .94);
  backdrop-filter: saturate(160%) blur(8px);
  border-bottom: 1px solid var(--c-line-2);
  transition: box-shadow .3s var(--ease);
}
.site-header.scrolled { box-shadow: 0 6px 24px rgba(28, 26, 23, .07); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
}
.logo img { height: 40px; width: auto; }
.logo .logo-text {
  font-family: var(--font-serif);
  font-size: 24px;
  letter-spacing: .18em;
  color: var(--c-ink);
}

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav > li { position: relative; }
.main-nav > li > a {
  display: block;
  padding: 10px 18px;
  font-size: 14.5px;
  letter-spacing: .06em;
  position: relative;
}
.main-nav > li > a::after {
  content: "";
  position: absolute;
  left: 18px; right: 18px; bottom: 2px;
  height: 1px;
  background: var(--c-gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s var(--ease);
}
.main-nav > li:hover > a::after,
.main-nav > li.active > a::after { transform: scaleX(1); }
.main-nav > li.active > a { color: var(--c-gold); }

.sub-nav {
  position: absolute;
  left: 0; top: 100%;
  min-width: 200px;
  background: #fff;
  border: 1px solid var(--c-line-2);
  box-shadow: 0 12px 32px rgba(28, 26, 23, .1);
  padding: 10px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all .28s var(--ease);
}
.main-nav li:hover .sub-nav { opacity: 1; visibility: visible; transform: translateY(0); }
.sub-nav a { display: block; padding: 9px 22px; font-size: 14px; color: var(--c-ink-2); }
.sub-nav a:hover { background: #FAF7F2; color: var(--c-gold); }

.header-tools { display: flex; align-items: center; gap: 16px; }
.hd-search { display: flex; align-items: center; border-bottom: 1px solid var(--c-line); padding-bottom: 3px; }
.hd-search input { border: 0; background: transparent; outline: none; width: 130px; font-size: 13px; font-family: var(--font-sans); color: var(--c-ink); }
.hd-search button { border: 0; background: transparent; cursor: pointer; font-size: 15px; color: var(--c-mute); padding: 0 2px; }
.hd-search button:hover { color: var(--c-gold); }
.btn-gold {
  display: inline-block;
  background: var(--c-gold);
  color: #fff;
  padding: 11px 26px;
  font-size: 13.5px;
  letter-spacing: .1em;
  border: 1px solid var(--c-gold);
  transition: all .3s var(--ease);
}
.btn-gold:hover { background: transparent; color: var(--c-gold); }
.btn-line {
  display: inline-block;
  border: 1px solid var(--c-ink);
  color: var(--c-ink);
  padding: 11px 26px;
  font-size: 13.5px;
  letter-spacing: .1em;
  transition: all .3s var(--ease);
}
.btn-line:hover { background: var(--c-ink); color: #fff; }
.btn-line-light { border-color: rgba(255, 255, 255, .5); color: #fff; }
.btn-line-light:hover { background: #fff; color: var(--c-ink); }

.burger { display: none; width: 34px; height: 22px; cursor: pointer; position: relative; }
.burger i { position: absolute; left: 0; width: 100%; height: 1.5px; background: var(--c-ink); transition: all .3s var(--ease); }
.burger i:nth-child(1) { top: 2px; }
.burger i:nth-child(2) { top: 10px; }
.burger i:nth-child(3) { top: 18px; }
.burger.on i:nth-child(1) { top: 10px; transform: rotate(45deg); }
.burger.on i:nth-child(2) { opacity: 0; }
.burger.on i:nth-child(3) { top: 10px; transform: rotate(-45deg); }

/* ============ Hero 轮播 ============ */
.hero { position: relative; height: 660px; overflow: hidden; background: #E5DFD6; }
.hero-slide {
  position: absolute; inset: 0;
  opacity: 0;
  transition: opacity 1s var(--ease);
}
.hero-slide.active { opacity: 1; }
.hero-slide img { width: 100%; height: 100%; object-fit: cover; }
.hero-mask {
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(20, 18, 16, .62) 0%, rgba(20, 18, 16, .28) 55%, rgba(20, 18, 16, .08) 100%);
}
.hero-txt {
  position: absolute; left: 0; right: 0; top: 50%;
  transform: translateY(-50%);
  color: #fff;
  z-index: 3;
}
.hero-txt h1 {
  font-size: 60px;
  letter-spacing: .02em;
  margin-bottom: 20px;
  max-width: 720px;
}
.hero-txt h1 em { font-style: normal; color: var(--c-gold-lt); }
.hero-txt p { font-size: 16px; color: rgba(255, 255, 255, .82); max-width: 560px; margin-bottom: 34px; }
.hero-txt .hero-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-dots {
  position: absolute; left: 0; right: 0; bottom: 40px;
  z-index: 4; display: flex; gap: 12px; justify-content: center;
}
.hero-dots i {
  width: 34px; height: 2px; background: rgba(255, 255, 255, .4);
  cursor: pointer; transition: background .3s var(--ease);
}
.hero-dots i.on { background: var(--c-gold-lt); }

/* ============ 优势四宫格 ============ */
.features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--c-line); border-bottom: 1px solid var(--c-line); }
.feature {
  padding: 46px 34px;
  border-right: 1px solid var(--c-line);
  transition: background .35s var(--ease);
}
.feature:last-child { border-right: 0; }
.feature:hover { background: #F4F0EA; }
.feature-num { font-family: var(--font-serif); font-size: 13px; color: var(--c-gold); letter-spacing: .2em; margin-bottom: 16px; }
.feature h3 { font-size: 19px; margin-bottom: 10px; }
.feature p { color: var(--c-mute); font-size: 13.5px; line-height: 1.75; margin: 0; }

/* ============ 产品分类 ============ */
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.cat-item {
  position: relative;
  display: block;
  overflow: hidden;
  background: #EDE8E1;
  aspect-ratio: 4 / 5;
}
.cat-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.1s var(--ease); }
.cat-item:hover img { transform: scale(1.06); }
.cat-item .cat-mask {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(20, 18, 16, 0) 40%, rgba(20, 18, 16, .58) 100%);
}
.cat-item .cat-info {
  position: absolute; left: 28px; right: 28px; bottom: 26px;
  color: #fff; z-index: 2;
}
.cat-item .cat-info h3 { font-size: 24px; margin-bottom: 4px; }
.cat-item .cat-info span { font-size: 12.5px; letter-spacing: .16em; opacity: .8; text-transform: uppercase; }
.cat-item .cat-info i {
  display: inline-block; margin-top: 10px; font-style: normal;
  font-size: 12px; letter-spacing: .1em; border-bottom: 1px solid rgba(255, 255, 255, .6);
  padding-bottom: 3px; opacity: 0; transform: translateY(6px);
  transition: all .35s var(--ease);
}
.cat-item:hover .cat-info i { opacity: 1; transform: translateY(0); }

/* ============ 关于我们（图文） ============ */
.about-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.about-pics { position: relative; }
.about-pics .pic-main { width: 88%; aspect-ratio: 4/5; object-fit: cover; }
.about-pics .pic-sub {
  position: absolute; right: 0; bottom: -46px; width: 46%;
  aspect-ratio: 4/3; object-fit: cover; border: 8px solid var(--c-bg);
}
.about-body h2 { font-size: 38px; margin-bottom: 20px; }
.about-body p { color: var(--c-mute); }
.about-list { margin: 26px 0 32px; }
.about-list li { display: flex; gap: 12px; padding: 9px 0; font-size: 14.5px; color: var(--c-ink-2); border-bottom: 1px dashed var(--c-line); }
.about-list li b { color: var(--c-gold); font-weight: 400; min-width: 26px; }

/* 数字统计 */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 56px; }
.stat { text-align: center; }
.stat .num { font-family: var(--font-serif); font-size: 42px; color: var(--c-gold-lt); line-height: 1.2; }
.stat .num small { font-size: 20px; }
.stat .label { font-size: 13px; letter-spacing: .12em; color: #A79E93; margin-top: 6px; }

/* ============ 产品展示 ============ */
.prod-tabs { display: flex; justify-content: center; gap: 8px; flex-wrap: wrap; margin-bottom: 44px; }
.prod-tabs button {
  background: transparent; border: 1px solid var(--c-line);
  padding: 9px 22px; font-size: 13.5px; letter-spacing: .06em;
  cursor: pointer; color: var(--c-mute); font-family: var(--font-sans);
  transition: all .3s var(--ease);
}
.prod-tabs button:hover { border-color: var(--c-gold); color: var(--c-gold); }
.prod-tabs button.on { background: var(--c-ink); border-color: var(--c-ink); color: #fff; }

.prod-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.prod-card { display: block; background: #fff; border: 1px solid var(--c-line-2); transition: all .4s var(--ease); }
.prod-card:hover { box-shadow: 0 16px 40px rgba(28, 26, 23, .1); transform: translateY(-4px); }
.prod-card .thumb { position: relative; overflow: hidden; aspect-ratio: 1/1; background: #F0EBE4; }
.prod-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.1s var(--ease); }
.prod-card:hover .thumb img { transform: scale(1.05); }
.prod-card .thumb .tag {
  position: absolute; left: 12px; top: 12px; z-index: 2;
  background: var(--c-gold); color: #fff; font-size: 11px;
  padding: 3px 10px; letter-spacing: .08em;
}
.prod-card .info { padding: 18px 20px 22px; }
.prod-card .info h3 { font-size: 16.5px; margin-bottom: 6px; }
.prod-card .info .meta { font-size: 12.5px; color: var(--c-mute-2); letter-spacing: .08em; }
.prod-card .info .more { display: inline-block; margin-top: 12px; font-size: 12.5px; letter-spacing: .1em; color: var(--c-gold); border-bottom: 1px solid var(--c-gold); padding-bottom: 2px; }

/* ============ 服务流程 ============ */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.step { text-align: center; padding: 0 12px; }
.step .idx {
  width: 62px; height: 62px; margin: 0 auto 20px;
  border: 1px solid rgba(255, 255, 255, .28);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-serif); font-size: 20px; color: var(--c-gold-lt);
}
.step h3 { font-size: 18px; margin-bottom: 10px; color: #fff; }
.step p { font-size: 13.5px; color: #A79E93; margin: 0; }

/* ============ 新闻 ============ */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.news-card { display: block; background: #fff; border: 1px solid var(--c-line-2); transition: all .4s var(--ease); }
.news-card:hover { box-shadow: 0 16px 40px rgba(28, 26, 23, .09); transform: translateY(-4px); }
.news-card .thumb { overflow: hidden; aspect-ratio: 4/3; background: #F0EBE4; }
.news-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.1s var(--ease); }
.news-card:hover .thumb img { transform: scale(1.05); }
.news-card .info { padding: 24px 26px 28px; }
.news-card .date { font-size: 12px; letter-spacing: .12em; color: var(--c-gold); margin-bottom: 10px; display: block; }
.news-card h3 { font-size: 18px; margin-bottom: 10px; line-height: 1.5; }
.news-card p { font-size: 13.5px; color: var(--c-mute); margin: 0; }

/* ============ CTA ============ */
.cta-box {
  background: var(--c-dark);
  padding: 72px 80px;
  display: flex; align-items: center; justify-content: space-between; gap: 40px;
}
.cta-box h2 { font-size: 34px; color: #fff; margin-bottom: 10px; }
.cta-box p { color: #A79E93; margin: 0; font-size: 14.5px; }

/* ============ 内页头图 ============ */
.page-banner {
  height: 340px;
  background: #E5DFD6;
  position: relative;
  display: flex; align-items: center;
  overflow: hidden;
}
.page-banner img.bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.page-banner .mask { position: absolute; inset: 0; background: rgba(20, 18, 16, .45); }
.page-banner .container { position: relative; z-index: 2; color: #fff; }
.page-banner h1 { font-size: 44px; margin-bottom: 10px; }
.page-banner .sub { font-size: 13px; letter-spacing: .22em; color: rgba(255, 255, 255, .7); text-transform: uppercase; }

/* 面包屑 */
.crumb { padding: 18px 0; border-bottom: 1px solid var(--c-line-2); font-size: 13px; color: var(--c-mute); background: #fff; }
.crumb a { color: var(--c-mute); }
.crumb a:hover { color: var(--c-gold); }
.crumb span { margin: 0 6px; color: var(--c-mute-2); }
.crumb .cur { color: var(--c-ink); }

/* ============ 内页布局 ============ */
.page-body { display: grid; grid-template-columns: 260px 1fr; gap: 50px; padding: 60px 0 100px; }
.side-box { background: #fff; border: 1px solid var(--c-line-2); padding: 26px 0; margin-bottom: 24px; }
.side-box h4 { font-size: 16px; padding: 0 26px 14px; border-bottom: 1px solid var(--c-line-2); letter-spacing: .06em; }
.side-cat li a {
  display: block; padding: 12px 26px; font-size: 14.5px; color: var(--c-ink-2);
  border-left: 2px solid transparent; transition: all .3s var(--ease);
}
.side-cat li a:hover, .side-cat li.on a { border-left-color: var(--c-gold); color: var(--c-gold); background: #FAF7F2; }
.side-contact { background: var(--c-dark); color: #E8E2D9; padding: 30px 26px; }
.side-contact h4 { color: #fff; font-size: 17px; margin-bottom: 16px; }
.side-contact p { font-size: 13.5px; color: #A79E93; margin-bottom: 8px; }
.side-contact .btn-line-light { margin-top: 16px; font-size: 12.5px; padding: 9px 20px; }

/* ============ 列表页 ============ */
.list-head { margin-bottom: 34px; }
.list-head h2 { font-size: 28px; margin-bottom: 8px; }
.list-head p { color: var(--c-mute); font-size: 14px; margin: 0; }
.list-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.list-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

.news-list { border-top: 1px solid var(--c-line); }
.news-row {
  display: grid; grid-template-columns: 200px 1fr; gap: 30px;
  padding: 30px 0; border-bottom: 1px solid var(--c-line);
  transition: background .3s var(--ease);
}
.news-row:hover { background: #fff; }
.news-row .thumb { overflow: hidden; aspect-ratio: 4/3; background: #F0EBE4; }
.news-row .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 1s var(--ease); }
.news-row:hover .thumb img { transform: scale(1.05); }
.news-row h3 { font-size: 20px; margin-bottom: 10px; }
.news-row .meta { font-size: 12.5px; color: var(--c-mute-2); letter-spacing: .08em; margin-bottom: 10px; }
.news-row p { font-size: 14px; color: var(--c-mute); margin: 0 0 12px; }
.news-row .more { font-size: 12.5px; color: var(--c-gold); letter-spacing: .1em; border-bottom: 1px solid var(--c-gold); padding-bottom: 2px; }

/* 分页 */
.pager { display: flex; justify-content: center; gap: 6px; margin-top: 50px; flex-wrap: wrap; }
.pager a, .pager span {
  min-width: 38px; height: 38px; padding: 0 12px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--c-line); font-size: 13.5px; background: #fff;
  transition: all .3s var(--ease);
}
.pager a:hover { border-color: var(--c-gold); color: var(--c-gold); }
.pager .current { background: var(--c-ink); border-color: var(--c-ink); color: #fff; }

.empty-tip { padding: 80px 0; text-align: center; color: var(--c-mute-2); font-size: 14px; }

/* ============ 内容详情页 ============ */
.detail-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.gallery .big { border: 1px solid var(--c-line-2); background: #F0EBE4; overflow: hidden; aspect-ratio: 1/1; }
.gallery .big img { width: 100%; height: 100%; object-fit: cover; }
.gallery .thumbs { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; margin-top: 10px; }
.gallery .thumbs a { display: block; aspect-ratio: 1/1; overflow: hidden; border: 1px solid var(--c-line-2); background: #F0EBE4; }
.gallery .thumbs a.on { border-color: var(--c-gold); }
.gallery .thumbs img { width: 100%; height: 100%; object-fit: cover; }

.detail-info h1 { font-size: 32px; margin-bottom: 12px; line-height: 1.35; }
.detail-info .sub { color: var(--c-mute); font-size: 14px; margin-bottom: 24px; }
.spec-table { border-top: 1px solid var(--c-line); margin: 26px 0; }
.spec-table .row { display: grid; grid-template-columns: 110px 1fr; gap: 16px; padding: 11px 0; border-bottom: 1px solid var(--c-line-2); font-size: 14px; }
.spec-table .row .k { color: var(--c-mute-2); letter-spacing: .06em; }
.detail-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }
.tags-line { margin-top: 26px; font-size: 13px; color: var(--c-mute-2); }
.tags-line a { display: inline-block; border: 1px solid var(--c-line); padding: 3px 12px; margin: 0 6px 6px 0; }
.tags-line a:hover { border-color: var(--c-gold); color: var(--c-gold); }

.article-body { font-size: 15.5px; line-height: 1.95; color: var(--c-ink-2); }
.article-body img { max-width: 100%; height: auto; margin: 16px 0; }
.article-body p { margin-bottom: 18px; }
.article-body h2, .article-body h3 { margin: 28px 0 14px; }
.article-body ul { padding-left: 20px; list-style: disc; margin-bottom: 18px; }
.article-body li { margin-bottom: 6px; }

.detail-nav { display: flex; justify-content: space-between; gap: 20px; border-top: 1px solid var(--c-line); padding-top: 22px; margin-top: 50px; font-size: 14px; }
.detail-nav a { color: var(--c-mute); }
.detail-nav a:hover { color: var(--c-gold); }

/* ============ 留言 / 联系 ============ */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.contact-info li { padding: 14px 0; border-bottom: 1px solid var(--c-line); display: flex; gap: 18px; font-size: 14.5px; }
.contact-info li b { font-weight: 400; color: var(--c-mute-2); min-width: 76px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13px; color: var(--c-mute-2); margin-bottom: 7px; letter-spacing: .06em; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; border: 1px solid var(--c-line); background: #fff;
  padding: 12px 14px; font-size: 14px; font-family: var(--font-sans);
  color: var(--c-ink); outline: none; transition: border-color .3s var(--ease);
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--c-gold); }
.form-group textarea { min-height: 120px; resize: vertical; }
.form-group .code-wrap { display: flex; gap: 12px; align-items: center; }
.form-group .code-wrap input { flex: 1; }
.form-group .code-wrap img { height: 42px; cursor: pointer; }

/* ============ 产品列表：分类 Tab ============ */
.cat-tabs { display: flex; gap: 10px; flex-wrap: wrap; padding-bottom: 26px; border-bottom: 1px solid var(--c-line); margin-bottom: 26px; }
.cat-tabs a {
  border: 1px solid var(--c-line); background: #fff; padding: 9px 20px;
  font-size: 14px; letter-spacing: .04em; display: inline-flex; align-items: center; gap: 8px;
  transition: all .3s var(--ease);
}
.cat-tabs a:hover { border-color: var(--c-gold); color: var(--c-gold); }
.cat-tabs a.on { background: var(--c-ink); border-color: var(--c-ink); color: #fff; }
.cat-tabs a em { font-style: normal; font-size: 11px; opacity: .55; }

/* ============ 产品列表：工具栏（计数 / 排序 / 视图切换） ============ */
.tool-bar {
  display: flex; justify-content: space-between; align-items: center;
  gap: 20px; margin-bottom: 26px; flex-wrap: wrap;
}
.tool-bar .tb-left { font-size: 14px; color: var(--c-mute); }
.tool-bar .tb-left b { font-family: var(--font-serif); font-size: 18px; color: var(--c-gold); font-weight: 400; margin: 0 4px; }
.tb-right { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.sort-links { display: flex; gap: 2px; }
.sort-links a { padding: 6px 14px; font-size: 13px; color: var(--c-mute); border: 1px solid transparent; }
.sort-links a:hover { color: var(--c-gold); }
.sort-links a.on { border-color: var(--c-line); color: var(--c-ink); background: #fff; }
.view-switch { display: flex; border: 1px solid var(--c-line); }
.view-switch button {
  width: 38px; height: 34px; background: #fff; border: 0;
  border-right: 1px solid var(--c-line); cursor: pointer;
  color: var(--c-mute-2); font-size: 14px; transition: all .25s var(--ease);
}
.view-switch button:last-child { border-right: 0; }
.view-switch button:hover { color: var(--c-gold); }
.view-switch button.on { background: var(--c-ink); color: #fff; }

/* ============ 产品列表：网格 / 列表 双视图 ============ */
.prod-view { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; }
.prod-view.list { display: block; }
.prod-view.list .prod-card {
  display: grid; grid-template-columns: 300px 1fr; margin-bottom: 20px; align-items: stretch;
}
.prod-view.list .prod-card .thumb { aspect-ratio: auto; height: 100%; min-height: 210px; }
.prod-view.list .prod-card .info { padding: 28px 32px; display: flex; flex-direction: column; justify-content: center; }
.prod-view.list .prod-card .info h3 { font-size: 21px; margin-bottom: 8px; }
.prod-view.list .prod-card .desc { display: block; }
.prod-view.list .prod-card .quick { display: none; }
.prod-view.list .prod-card .more { margin-top: 16px; }

.prod-card .code { font-size: 11.5px; letter-spacing: .14em; color: var(--c-mute-2); margin-bottom: 7px; }
.prod-card .desc { display: none; font-size: 13.5px; color: var(--c-mute); margin: 12px 0 0; line-height: 1.75; }
.prod-card .quick {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 3;
  padding: 12px; text-align: center; background: rgba(28, 26, 23, .84);
  color: #fff; font-size: 12.5px; letter-spacing: .12em;
  transform: translateY(100%); transition: transform .35s var(--ease);
}
.prod-card:hover .quick { transform: translateY(0); }

/* ============ 侧栏标签筛选 ============ */
.side-tags { padding: 18px 24px 8px; display: flex; flex-wrap: wrap; gap: 8px; }
.side-tags a { border: 1px solid var(--c-line); padding: 4px 12px; font-size: 12.5px; color: var(--c-mute); }
.side-tags a:hover { border-color: var(--c-gold); color: var(--c-gold); }

/* ============ 产品详情：定制选项 ============ */
.option-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 8px; }
.option-item { border: 1px solid var(--c-line); background: #fff; padding: 22px 22px 24px; }
.option-item .oi-k { font-size: 11.5px; letter-spacing: .18em; color: var(--c-gold); text-transform: uppercase; margin-bottom: 8px; }
.option-item .oi-v { font-family: var(--font-serif); font-size: 17px; margin-bottom: 6px; }
.option-item .oi-d { font-size: 12.5px; color: var(--c-mute); margin: 0; }

/* ============ 三大业务板块 ============ */
.biz-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.biz-item { background: #fff; border: 1px solid var(--c-line-2); overflow: hidden; transition: all .4s var(--ease); }
.biz-item:hover { box-shadow: 0 16px 40px rgba(28, 26, 23, .1); transform: translateY(-4px); }
.biz-item .thumb { overflow: hidden; aspect-ratio: 4/3; background: #F0EBE4; }
.biz-item .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.1s var(--ease); }
.biz-item:hover .thumb img { transform: scale(1.05); }
.biz-item .body { padding: 28px 28px 32px; }
.biz-item .body .idx { font-size: 11.5px; letter-spacing: .2em; color: var(--c-gold); margin-bottom: 10px; }
.biz-item .body h3 { font-size: 21px; margin-bottom: 12px; }
.biz-item .body p { font-size: 14px; color: var(--c-mute); margin: 0 0 16px; line-height: 1.8; }

/* ============ 为什么选择我们（6 项） ============ */
.adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.adv-item { background: #fff; border: 1px solid var(--c-line-2); padding: 34px 30px 36px; transition: all .35s var(--ease); }
.adv-item:hover { border-color: var(--c-gold); box-shadow: 0 14px 34px rgba(28, 26, 23, .07); }
.adv-item .idx { font-family: var(--font-serif); font-size: 13px; letter-spacing: .2em; color: var(--c-gold); margin-bottom: 14px; }
.adv-item h3 { font-size: 19px; margin-bottom: 12px; }
.adv-item p { font-size: 13.5px; color: var(--c-mute); margin: 0; line-height: 1.8; }

/* ============ 应用场景 ============ */
.scene-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.scene-item { position: relative; overflow: hidden; aspect-ratio: 3/4; background: #EDE8E1; }
.scene-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.1s var(--ease); }
.scene-item:hover img { transform: scale(1.06); }
.scene-item .mask { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(20,18,16,0) 42%, rgba(20,18,16,.62) 100%); }
.scene-item .txt { position: absolute; left: 22px; right: 22px; bottom: 22px; color: #fff; z-index: 2; }
.scene-item .txt h3 { font-size: 19px; margin-bottom: 5px; }
.scene-item .txt p { font-size: 12.5px; color: rgba(255, 255, 255, .8); margin: 0; line-height: 1.6; }

/* ============ 材质 / 工艺说明（两列） ============ */
.mat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.mat-item { border: 1px solid var(--c-line-2); background: #fff; padding: 26px 28px 28px; }
.mat-item .mk { font-size: 11.5px; letter-spacing: .18em; color: var(--c-gold); text-transform: uppercase; margin-bottom: 8px; }
.mat-item .mv { font-family: var(--font-serif); font-size: 18px; margin-bottom: 8px; }
.mat-item .md { font-size: 13.5px; color: var(--c-mute); margin: 0; line-height: 1.75; }

/* ============ 常见问答（栏目列表式） ============ */
.qa-item { border-bottom: 1px solid var(--c-line); background: #fff; }
.qa-q { padding: 20px 46px 20px 26px; position: relative; font-family: var(--font-serif); font-size: 17px; cursor: pointer; list-style: none; }
.qa-q::-webkit-details-marker { display: none; }
.qa-q::after { content: "+"; position: absolute; right: 24px; top: 16px; font-size: 20px; color: var(--c-gold); font-family: var(--font-sans); }
.qa-item[open] .qa-q::after { content: "\2212"; }
.qa-a { padding: 0 46px 24px 26px; color: var(--c-mute); font-size: 14.5px; line-height: 1.85; }
.qa-a p:last-child { margin-bottom: 0; }

/* ============ 联系我们：三大信息卡 ============ */
.contact-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.contact-card {
  background: #fff; border: 1px solid var(--c-line);
  padding: 40px 34px 42px;
  transition: border-color .35s var(--ease), box-shadow .35s var(--ease), transform .35s var(--ease);
}
.contact-card:hover { border-color: var(--c-gold); box-shadow: 0 14px 36px rgba(28, 26, 23, .08); transform: translateY(-3px); }
.contact-card .icon {
  width: 50px; height: 50px; border: 1px solid var(--c-line);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  color: var(--c-gold); font-size: 19px; margin-bottom: 22px;
  transition: background .35s var(--ease), color .35s var(--ease), border-color .35s var(--ease);
}
.contact-card:hover .icon { background: var(--c-gold); border-color: var(--c-gold); color: #fff; }
.contact-card .k { font-size: 11.5px; letter-spacing: .22em; text-transform: uppercase; color: var(--c-mute-2); margin-bottom: 10px; }
.contact-card .v { font-family: var(--font-serif); font-size: 18px; line-height: 1.65; color: var(--c-ink); word-break: break-word; }
.contact-card .note { font-size: 13px; color: var(--c-mute); margin-top: 12px; }

/* ============ 联系我们：表单 + 服务承诺 ============ */
.contact-main { display: grid; grid-template-columns: 1fr 1.2fr; gap: 56px; align-items: start; }
.promise-box { background: var(--c-dark); color: #E8E2D9; padding: 52px 46px; }
.promise-box h3 { color: #fff; font-size: 24px; margin-bottom: 12px; }
.promise-box .promise-sub { font-size: 13.5px; color: #A79E93; margin-bottom: 26px; }
.promise-list li {
  display: flex; gap: 14px; padding: 13px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .12); font-size: 14px; line-height: 1.7;
}
.promise-list li:last-child { border-bottom: 0; }
.promise-list li b { color: var(--c-gold-lt); font-weight: 400; min-width: 22px; }
.promise-sla { display: flex; gap: 30px; margin-top: 30px; padding-top: 26px; border-top: 1px solid rgba(255, 255, 255, .12); }
.promise-sla .sla .n { font-family: var(--font-serif); font-size: 28px; color: var(--c-gold-lt); }
.promise-sla .sla .t { font-size: 12.5px; color: #A79E93; letter-spacing: .06em; }

/* ============ 联系我们：地图 ============ */
.map-box { border: 1px solid var(--c-line); background: #F0EBE4; height: 430px; overflow: hidden; }
.map-box iframe { width: 100%; height: 100%; border: 0; display: block; }
.map-placeholder { height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; color: var(--c-mute-2); }
.map-placeholder .m-ico { font-size: 30px; color: var(--c-gold-lt); }
.map-placeholder .m-txt { font-size: 14px; }
.map-placeholder .m-sub { font-size: 12.5px; color: var(--c-mute-2); }

/* ============ 联系我们：FAQ ============ */
.faq-list { border-top: 1px solid var(--c-line); }
.faq-item { border-bottom: 1px solid var(--c-line); background: #fff; }
.faq-item summary {
  padding: 20px 46px 20px 26px; cursor: pointer; font-size: 16px;
  position: relative; list-style: none; font-family: var(--font-serif);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+"; position: absolute; right: 24px; top: 16px;
  font-size: 20px; color: var(--c-gold); font-family: var(--font-sans);
}
.faq-item[open] summary::after { content: "\2212"; }
.faq-item .faq-body { padding: 0 46px 24px 26px; color: var(--c-mute); font-size: 14.5px; }

/* ============ 联系我们：全球网络 ============ */
.network-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.network-cell { border: 1px solid rgba(255, 255, 255, .18); padding: 30px 24px; text-align: center; }
.network-cell .n { font-family: var(--font-serif); font-size: 36px; color: var(--c-gold-lt); line-height: 1.2; }
.network-cell .n small { font-size: 18px; }
.network-cell .t { font-size: 12.5px; color: #A79E93; letter-spacing: .1em; margin-top: 6px; }

/* ============ Footer ============ */
.site-footer { background: var(--c-dark); color: #A79E93; padding: 76px 0 0; }
.foot-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 46px; padding-bottom: 54px; }
.foot-col h4 { color: #fff; font-size: 16px; letter-spacing: .1em; margin-bottom: 22px; }
.foot-col p { font-size: 13.5px; line-height: 1.9; }
.foot-col ul li { padding: 6px 0; font-size: 13.5px; }
.foot-col ul li a { color: #A79E93; }
.foot-col ul li a:hover { color: var(--c-gold-lt); }
.foot-logo { height: 38px; margin-bottom: 20px; }
.foot-contact li { display: flex; gap: 10px; font-size: 13.5px; padding: 7px 0; }
.foot-bottom { border-top: 1px solid rgba(255, 255, 255, .1); padding: 22px 0; font-size: 12.5px; display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.foot-bottom a { color: #A79E93; }

/* ============ 回到顶部 ============ */
.to-top {
  position: fixed; right: 28px; bottom: 28px; z-index: 800;
  width: 44px; height: 44px; background: var(--c-ink); color: #fff;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; opacity: 0; visibility: hidden; transition: all .3s var(--ease);
}
.to-top.show { opacity: 1; visibility: visible; }
.to-top:hover { background: var(--c-gold); color: #fff; }

/* ============ 滚动动画 ============ */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ============ 响应式 ============ */
@media (max-width: 1200px) {
  .container { max-width: 100%; }
  .features { grid-template-columns: repeat(2, 1fr); }
  .feature:nth-child(2) { border-right: 0; }
  .feature:nth-child(1), .feature:nth-child(2) { border-bottom: 1px solid var(--c-line); }
  .prod-grid, .list-grid.cols-4, .prod-view { grid-template-columns: repeat(3, 1fr); }
  .hero-txt h1 { font-size: 48px; }
}

@media (max-width: 992px) {
  .main-nav {
    display: block;
    position: fixed; left: 0; right: 0; top: 126px;
    background: #fff; border-top: 1px solid var(--c-line-2);
    max-height: 0; overflow: hidden;
    transition: max-height .4s var(--ease);
  }
  .main-nav.open { max-height: 70vh; overflow-y: auto; }
  .main-nav > li > a { padding: 14px 24px; border-bottom: 1px solid var(--c-line-2); }
  .main-nav > li > a::after { display: none; }
  .sub-nav { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: 0; padding: 0 0 8px; background: #FAF7F2; display: none; }
  .main-nav > li:hover .sub-nav, .sub-nav.show { display: block; }
  .sub-nav a { padding: 10px 40px; }
  .burger { display: block; }
  .header-tools .btn-gold { display: none; }
  .hero { height: 520px; }
  .hero-txt h1 { font-size: 38px; }
  .cat-grid, .news-grid, .list-grid, .list-grid.cols-4, .steps, .stats { grid-template-columns: repeat(2, 1fr); }
  .prod-view { grid-template-columns: repeat(2, 1fr); }
  .prod-view.list .prod-card { grid-template-columns: 1fr; }
  .prod-view.list .prod-card .thumb { aspect-ratio: 4/3; min-height: 0; }
  .prod-view.list .prod-card .info { padding: 24px 26px; }
  .option-grid { grid-template-columns: 1fr 1fr; }
  .about-wrap, .detail-wrap, .contact-grid, .contact-main, .cta-box { grid-template-columns: 1fr; }
  .contact-cards, .network-grid { grid-template-columns: 1fr 1fr; }
  .biz-grid, .adv-grid, .scene-grid { grid-template-columns: 1fr 1fr; }
  .promise-box { padding: 40px 30px; }
  .map-box { height: 320px; }
  .about-pics .pic-sub { bottom: -30px; }
  .cta-box { padding: 48px 32px; display: block; }
  .cta-box .btn-line-light { margin-top: 24px; display: inline-block; }
  .page-body { grid-template-columns: 1fr; }
  .side-box, .side-contact { display: none; }
  .foot-top { grid-template-columns: 1fr 1fr; gap: 34px; }
  .sec-title { font-size: 30px; }
  .section { padding: 70px 0; }
  .news-row { grid-template-columns: 1fr; gap: 18px; }
}

@media (max-width: 640px) {
  body { font-size: 14.5px; }
  .topbar .container { height: auto; padding-top: 8px; padding-bottom: 8px; flex-direction: column; gap: 4px; }
  .topbar-left span { margin-right: 14px; }
  .header-inner { height: 66px; }
  .logo img { height: 30px; }
  .main-nav { top: 66px; }
  .hero { height: 460px; }
  .hero-txt h1 { font-size: 30px; }
  .hero-txt p { font-size: 14px; }
  .features, .cat-grid, .prod-grid, .prod-view, .news-grid, .list-grid, .list-grid.cols-4, .steps, .stats { grid-template-columns: 1fr; }
  .option-grid, .biz-grid, .adv-grid, .scene-grid, .mat-grid { grid-template-columns: 1fr; }
  .tool-bar { flex-direction: column; align-items: flex-start; }
  .qa-q { padding: 16px 40px 16px 18px; font-size: 15.5px; }
  .qa-a { padding: 0 26px 20px 18px; }
  .feature { border-right: 0; border-bottom: 1px solid var(--c-line); }
  .sec-title { font-size: 26px; }
  .page-banner { height: 240px; }
  .page-banner h1 { font-size: 30px; }
  .form-row { grid-template-columns: 1fr; }
  .foot-top { grid-template-columns: 1fr; }
  .contact-cards, .network-grid { grid-template-columns: 1fr; }
  .contact-card { padding: 30px 26px; }
  .faq-item summary { padding: 16px 40px 16px 18px; font-size: 15px; }
  .faq-item .faq-body { padding: 0 26px 20px 18px; }
  .gallery .thumbs { grid-template-columns: repeat(4, 1fr); }
}