/* =======================================================================
   M77 高端家居私人定制 · 官网首页样式
   依据客户《M77 网页设计》提案的首页交互规范实现
   中文字体：思源黑体（Noto Sans SC / Source Han Sans）
   架构：1.变量 2.重置 3.通用 4.头部+下拉 5.区块 6.页脚 7.工具/弹窗 8.动效 9.响应式
   ======================================================================= */

/* ============ 1. 设计变量 ============ */
:root {
  --color-black: #0e0e0e;
  --color-dark:  #242424;
  --color-gray:  #f2f2f2;
  --color-white: #ffffff;
  --color-gold:  #cfb780;
  --color-gold-2:#c9ad79;
  --color-text:  #1a1a1a;
  --color-text-2:#6a6a6a;
  --nav-hover:   #8a8a8a;          /* 提案：悬停文字变灰 */
  --color-line:  rgba(0,0,0,.12);

  /* 思源黑体优先，附系统回退 */
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "Source Han Sans CN",
               "思源黑体", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-latin: "Helvetica Neue", "Arial", "Noto Sans SC", sans-serif;

  --container: 1560px;
  --gutter: clamp(20px, 5vw, 80px);
  --header-h: 68px;
  --section-py: clamp(64px, 9vw, 130px);
  --radius-pill: 999px;
  --ease: cubic-bezier(.22, .61, .36, 1);
  --dur: .5s;
}

/* ============ 2. 重置 ============ */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; font-family: var(--font-sans); color: var(--color-text);
  background: var(--color-white); line-height: 1.6; font-size: 16px;
  /*padding-top: var(--header-h);*/
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, p { margin: 0; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
:focus-visible { outline: 2px solid var(--color-gold); outline-offset: 3px; }

.skip-link { position: absolute; left: 16px; top: -60px; z-index: 2000; background:#fff; color:#000; padding:10px 16px; border-radius:4px; transition: top .2s; }
.skip-link:focus { top: 12px; }

/* ============ 3. 通用 ============ */
.container { width:100%; margin:0 auto;padding-inline: 1.5%; }
.center { display:flex; justify-content:center; }
.section--gray { background: var(--color-gray); }
.section--white { background: var(--color-white); }

.section-head { text-align:center; margin-bottom: clamp(40px,5vw,64px); }
.block-title { font-size: clamp(22px,2.4vw,28px); font-weight:700; letter-spacing:2px; color:#282828; }
.rule { display:block; width:70px; height:3px; margin:18px auto 0; background: var(--color-gold); }
.rule--gold { margin-inline:auto; }
.rule.small {width:70px;}
.rule.big {width:100px;}
.kx{height: 68px;}
/* 按钮 */
.btn { display:inline-flex; align-items:center; justify-content:center; letter-spacing:3px; transition: all var(--dur) var(--ease); }
/* 展厅 DISCOVER：默认深色实心，悬停反白（提案 P5） */
.btn--solid-dark { padding:10px 55px; border-radius: var(--radius-pill); background: transparent;color:#fff; font-size:16px; border:1px solid #FFFFFF; }
.btn--solid-dark:hover { background:#000000; color:#FFFFFF;border: 1px solid #000000;transform:scale(1.01); }

.btn--solid-white { padding:10px 40px; border-radius: var(--radius-pill); background: transparent;color:#000000; font-size:16px; border:1px solid #000000; }
.btn--solid-white:hover { background:#000000; color:#FFFFFF;border: 1px solid #000000;transform:scale(1.01);}


/* 了解更多 药丸：默认白底深字，悬停反黑（提案 P15） */
.btn--pill { padding:10px 55px; border:1px solid #bdbdbd; border-radius: var(--radius-pill); color:#333; font-size:15px; letter-spacing:4px; }
.btn--pill:hover { background:#111; color:#fff; border-color:#111; }
.btn--sm { padding:6px 30px; letter-spacing:3px;margin-top:15px; }

.grid { display:grid; gap: clamp(16px,2vw,30px); }
.grid--3 { display: flex;
  justify-content: space-between;
  gap: clamp(12px, 1.5vw, 20px);   /* 中间间距统一 */}
.grid--2 { grid-template-columns: repeat(2,1fr); gap: clamp(30px,3vw,80px); }


.cases .grid--3 {
  display: flex;
  justify-content: space-between;
  gap: 1vw;
}

.cases .grid--3 .card-photo {
  flex: 0 1 31vw;      /* 允许收缩，避免溢出 */
  min-width: 0;         /* 允许内容收缩 */
  margin: 0;
  overflow: visible;    /* 确保文字可见 */
}

.cases .grid--3 .card-photo__media {
  overflow: hidden;     /* 图片放大裁切 */
}

.cases .grid--3 .card-photo__media img {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  transition: transform 0.7s var(--ease);
}

.cases .grid--3 .card-photo:hover .card-photo__media img {
  transform: scale(1.05);
}

.cases .grid--3 .card-photo figcaption {
  margin-top: 22px;
  text-align: center;
  font-size: clamp(15px, 1.2vw, 17px);
  color: #333;
  white-space: normal;   /* 允许换行 */
}

/* 三列网格两端对齐，中间等距 */
.grid--space-between {
  display: grid;
  grid-template-columns: repeat(3, auto);   /* 列宽由内容决定 */
  justify-content: space-between;           /* 两端对齐 */
  column-gap: clamp(12px, 1.5vw, 20px);     /* 中间间距，可根据设计调整 */
}

/* ============ 4. 头部 + 下拉 ============ */
.site-header { position:fixed; inset:0 0 auto 0; z-index:1000; background: var(--color-black);z-index: 1100; }
.header__inner {
  width:100%; margin:0 auto; min-height: var(--header-h);
  padding-inline:1.5%;
  display:flex; align-items:center; gap: clamp(20px,3vw,48px);
}
.brand { flex:0 0 auto; display:flex; align-items:center; }
.brand img { width:auto; height:28px; }

.nav-main { flex:1 1 auto; }
.nav-main > ul { display:flex; gap: clamp(16px,2vw,34px); }
.nav-main a, .utility-links a {
  color:#fff; font-size:14px; letter-spacing:1px; padding:6px 0; display:inline-block; transition: color .3s;
}
/* 提案：悬停 / 选中 → 文字变灰 */
.nav-main li:hover > a, .nav-main a:hover,
.utility-links a:hover, .nav-main li.is-open > a { color: var(--nav-hover); }

.nav-utility { display:flex; align-items:center; gap: clamp(14px,1.6vw,26px); flex:0 0 auto; }
.utility-links { display:flex; gap: clamp(12px,1.4vw,24px); }
.icon-btn { color:#fff; display:inline-flex; padding:4px; transition: color .3s; }
.icon-btn:hover { color: var(--nav-hover); }
.lang { position:relative; }
.lang-btn { color:#fff; display:inline-flex; align-items:center; gap:4px; font-size:14px; transition: color .3s; }
.lang.is-open .lang-btn, .lang-btn:hover { color: var(--nav-hover); }
.lang-btn svg { transition: transform .3s; }
.lang.is-open .lang-btn svg { transform: rotate(180deg); }

/* 汉堡 */
.hamburger { display:none; flex-direction:column; gap:5px; padding:8px; margin-left:auto; }
.hamburger span { width:24px; height:2px; background:#fff; transition: transform .3s, opacity .3s; }
.hamburger.is-open span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.hamburger.is-open span:nth-child(2){ opacity:0; }
.hamburger.is-open span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

/* 下拉宿主：贴在 header 底部 */
.dropdown-host { position:absolute; left:0; right:0; top: var(--header-h); }
.dropdown-backdrop { position:fixed; inset: var(--header-h) 0 0 0; background: rgba(0,0,0,.45); z-index:1001; opacity:0; transition: opacity .3s; }
.dropdown-backdrop.is-show { opacity:1; }

/* 产品系列：浅色全宽面板（左列表 + 右内容：图片行 或 文字多列） */
.mega {
  background:#fff; box-shadow: 0 24px 50px rgba(0,0,0,.18);
  display:none; padding: 30px 1.5vw; gap: 0; height: 280px; align-items: stretch;
}
.mega.is-open { display:flex; }
.mega__col--list { flex:0 0 auto; min-width: 200px; padding-right:26px; border-right:1px solid #ededed; }
.mega__right { flex:1 1 auto; display:flex; padding-left:32px; }
.mega__col {
  min-width: 190px; padding: 0 26px; border-right:1px solid #ededed; display:flex; flex-direction:column; gap:2px;
}
.mega__col:last-child { border-right:0; }
.mega__col--list, .mega__right > .mega__col:last-child { }
.mega__right > .mega__col:first-child { padding-left:0; }
.mega__item {
  width:100%; text-align:left; padding:6px 4px; font-size:14px; color:#000000; letter-spacing:.5px;
  display:flex; justify-content:space-between; align-items:center; gap:14px; transition: color .25s;
}
.mega__item:hover, .mega__item.is-active { color: var(--nav-hover); }   /* 文字变灰（选中态） */
.mega__empty { color:#bbb; font-size:13px; padding:9px 4px; }
/* 图片行（附件一）：横向排列、悬停轻微放大 */
.mega__gallery { display:flex; gap:16px; align-items:flex-start; width:100%; overflow:hidden; }

/* 父容器保持相对定位，不裁剪超出部分（默认 visible，无需额外设置） */
.mega {
  position: relative;          /* 如果之前没有，加上以便伪元素参考 */
  overflow: visible;           /* 确保不会裁剪伪元素 */
}

/* 左侧列表：移除边框，用伪元素绘制贯通竖线 */
.mega__col--list {
  position: relative;
  border-right: none;          /* ★ 去掉原有边框 */
  padding-right: 26px;         /* 保留文字右侧间距 */
  align-self: stretch;         /* 保持高度拉伸 */
}

.mega__col--list::after {
  content: "";
  position: absolute;
  right: 0;
  top: -30px;                  /* 向上延伸，抵消 .mega 的 padding-top (30px) */
  bottom: -30px;               /* 向下延伸，抵消 .mega 的 padding-bottom (30px) */
  width: 1px;
  background-color: #ededed;
}
.mega__gallery {
  display: grid;
  grid-template-columns: repeat(6, 1fr);   /* 永远分成 6 等列 */
  gap: 16px;
      height: 220px;
    padding-top: 8px;
  /* 不设置 width:100%，让内容自动决定宽度；若想占满右侧，可以加 width:100% */
}

.mega__thumb {
  width: 100%;               /* 占满所在列宽 */
  height: 200px;             /* 固定高度 */
  overflow: hidden;
  display: block;
}

.mega__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #f2f2f2;
  transition: transform 0.5s ease;
  aspect-ratio: 3 / 2;
}

/* ========== 右侧各列：竖线贯通 ========== */
.mega__right .mega__col {
  position: relative;           /* 为伪元素提供定位参照 */
  border-right: none;          /* 移除原有边框 */
  /* 保留原有的 padding、min-width 等样式 */
}

/* 画线（右侧边框） */
/*.mega__right .mega__col::after {
  content: "";
  position: absolute;
  right: 0;
  top: -30px;           
  bottom: -30px;  
  width: 1px;
  background: #ededed;
}
*/
/* 竖线仅在家具系统纯文字模式下显示 */
.mega__right--has-lines .mega__col::after {
  content: "";
  position: absolute;
  right: 0;
  top: -30px;
  bottom: -30px;
  width: 1px;
  background: #ededed;
}
.mega__right--has-lines .mega__col:last-child::after {
  display: none;
}

/* 最后一列不显示竖线（避免右侧多余线条） */
.mega__right .mega__col:last-child::after {
  display: none;
}


/* 豪宅系列 / 语言：深色紧凑下拉（提案 P9 / P32） */
.mini {
  position:absolute; top: 0; background: var(--color-black);
  padding:6px 0; display:none; box-shadow:0 16px 30px rgba(0,0,0,.4);margin-left: -25px;
}
.mini.is-open { display:block; }
.mini button, .mini a {
  display:block; width:100%; text-align:center; color:#fff; font-size:14px; padding:11px 20px; letter-spacing:1px; transition: color .25s;
}
.mini button:hover, .mini a:hover, .mini .is-active { color: var(--nav-hover); }
.mini--lang button, .mini--lang a { text-align: center; }

/* 移动端抽屉 */
.mobile-menu { position:fixed; inset: var(--header-h) 0 0 0; z-index:1000; background: var(--color-black); padding:24px var(--gutter); transform: translateX(100%); transition: transform .4s var(--ease); overflow-y:auto; }
.mobile-menu.is-open { transform: translateX(0); }
.mobile-menu nav { display:flex; flex-direction:column; }
.mobile-menu a { color:#fff; font-size:17px; padding:18px 4px; border-bottom:1px solid rgba(255,255,255,.08); }
.mobile-menu a:active { color: var(--nav-hover); }

/* ============ 5. 区块 ============ */

/* 5.1 英雄区：视频自动播放 → 结束后图片轮播（交叉淡入），图片可点击 */
.hero { position:relative; min-height: calc(100vh - var(--header-h)); background: var(--color-dark); overflow:hidden; display:flex; align-items:center; justify-content:center; }
.hero__video { position:absolute; inset:0; width:100%; height:100%; object-fit:cover; background: var(--color-dark); transition: opacity .8s var(--ease); }
.hero__video.is-hidden { opacity:0; }
.hero__gallery { position:absolute; inset:0; opacity:0; transition: opacity .8s var(--ease); }
.hero__gallery.is-on { opacity:1; }
.hero__img { position:absolute; inset:0; display:block; background-size:cover; background-position:center; opacity:0; transition: opacity 1s var(--ease); }
.hero__img.is-active { opacity:1; }
.hero__overlay { position:absolute; inset:0; background: rgba(0,0,0,.18); pointer-events:none; }
.hero__arrow { z-index:4; opacity:0; visibility:hidden; transition: opacity .4s, background .3s, border-color .3s; }
.hero__arrow.is-show { opacity:1; visibility:visible; }
.hero__arrow[hidden] { display:none; }

/* 5.2 品牌理念 */
.philosophy { padding-block: var(--section-py); }
.philosophy__inner { max-width:980px; margin:0 auto; text-align:center; }
.philosophy__text { margin-top:30px; color:#282828; font-size: clamp(15px,1.3vw,18px); line-height:1.7; letter-spacing:.5px; }

/* 5.3 产品系列：持续横向滚动（无滚动条，无缝循环 · 参考 Boffi） */
/* 5.3 产品系列：无缝横向滚动（修复空白 + 保底动画） */
.products {
  background: var(--color-white);
padding: 120px 0px;  overflow: hidden;
}

.marquee {
  overflow: hidden;
}
.marquee::-webkit-scrollbar { display: none; }

.marquee__track {
  display: flex;
  gap: clamp(16px, 2vw, 28px);         /* ★ 间距统一用 gap，消除尾部空白 */
  width: max-content;
  animation: marquee 48s linear infinite !important;  /* ★ 强制生效，不被覆盖 */
  will-change: transform;
}

/*.marquee:hover .marquee__track {
  animation-play-state: paused !important;
}*/

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.product-card {
  flex: 0 0 clamp(240px, 22vw, 360px);
  margin: 30px;
  display: block;
  color: inherit;
}

.product-card__media { overflow: hidden; }

.product-card__media img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  background: var(--color-gray);
  transition: transform 0.6s ease;
}

/*.product-card:hover .product-card__media img { transform: scale(1.04); }*/

.product-card__label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-top: 18px;
  font-weight: 700;
  font-size: clamp(15px, 1.3vw, 18px);
  color: #1a1a1a;
}

.product-card__label .tag {
  color: #222;
  letter-spacing: 1px;
  font-family: sans-serif;
}

/* 5.4 展厅精选 深色轮播 */
.showroom { position:relative;height: 100vh; min-height: clamp(420px,56vw,760px); display:flex; align-items:center; justify-content:center; overflow:hidden; background: var(--color-dark); color:#fff; text-align:center; }
.showroom__slides { position:absolute; inset:0; }
.showroom__slide { position:absolute; inset:0; background-size:cover; background-position:center; opacity:0; transition: opacity 1s var(--ease); }
.showroom__slide.is-active { opacity:1; }
.showroom__overlay { position:absolute; inset:0; background: rgba(10,10,10,.4); }
.showroom__content { position:relative; z-index:2; padding:20px; }
.showroom__content .rule { margin-bottom:20px; }
.showroom__title-en { font-size: 40px; font-weight:700; letter-spacing:6px; font-family: var(--font-latin); }
.showroom__title-cn { letter-spacing:4px; margin:-10px 0 34px;    font-size: 36px; }
.showroom__title-cn:empty { display:none; }
/* 箭头：默认白描边圆；悬停出现黑色实心圆（提案 P6） */
.arrow { position:absolute; top:50%; transform: translateY(-50%); z-index:3; width:52px; height:52px; border:1px solid rgba(255,255,255,.6); border-radius:50%; color:#fff; display:flex; align-items:center; justify-content:center; transition: background .3s, border-color .3s; }
.arrow:hover { background:#000; border-color:#000; }
.arrow--prev { left: clamp(12px,3vw,48px); }
.arrow--next { right: clamp(12px,3vw,48px); }

.showroom__content_more{position: absolute;bottom: 60px;}

/* 5.5 案例 / 新闻 卡片 */
.cases, .catalogues, .feature, .news { padding-block: var(--section-py); }
.news.patop{padding-top: 80px;}
.card-photo figcaption { text-align:center; margin-top:22px; font-size: 17px; color:#333; }
.card-photo__media {}
.card-photo__media img { width:100%; aspect-ratio:4/5; object-fit:cover; background: var(--color-gray); transition: transform .7s var(--ease); }
.card-photo:hover .card-photo__media img { transform: scale(1.05); }      /* 图片轻微放大 */
.card-photo--news .card-photo__media img { aspect-ratio:10/7; filter: grayscale(1); transition: transform .7s var(--ease), filter .6s var(--ease); }
.card-photo--news:hover .card-photo__media img { filter: grayscale(0); }   /* 灰度→彩色（提案 P14） */
.cases .center, .news .center, .catalogues .center { margin-top: clamp(40px,5vw,64px); }

.card-photo {
  overflow: hidden;   /* 确保整体不溢出 */
}

.card-photo__media {
  overflow: hidden;   /* 已有，保留 */
}

.card-photo__media img {
  width: 100%;
  height: 100%;
  transition: transform 0.7s var(--ease);
}

.card-photo:hover .card-photo__media img {
  transform: scale(1.05);   /* 放大仍被容器裁切 */
}

/* 5.6 品牌手册 */
.catalogues__grid { max-width:920px; margin:0 auto; }
.card-book figcaption { text-align:center; margin-top:24px; font-size:16px; color:#333; }
.card-book__media { filter: drop-shadow(0 24px 40px rgba(0,0,0,.18)); transition: transform .5s var(--ease); }
.card-book:hover .card-book__media { transform: translateY(-6px) scale(1.02); }  /* 图片轻微放大 */
.card-book__media img { width:100%; object-fit:cover; }

/* 5.7 展厅图文：灰度→彩色（提案 P13） */
.feature__grid { align-items:start; }
.feature__media{
  position: relative;          /* 让伪元素相对定位 */
  overflow: hidden;            /* 保持图片放大不溢出 */
}

/* 叠加居中 logo */
.feature__media::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120px;                /* 根据 logo 尺寸调整 */
  height: 60px;
  opacity: 1;                /* 半透明，不遮挡图片 */
  pointer-events: none;        /* ★ 关键：鼠标事件穿透，不干扰悬停 */
  z-index: 2;
}

/* 第一个卡片 → M77 logo */
.feature__item:nth-child(1) .feature__media::after {
  background: url('../assets/LOGO-white1.png') center / contain no-repeat;
}

/* 第二个卡片 → M77+ logo */
.feature__item:nth-child(2) .feature__media::after {
  background: url('../assets/LOGO-white1.png') center / contain no-repeat;
}

/* 图片样式保持原样 */
.feature__media img {
  width: 100%;
  object-fit: cover;
  filter: grayscale(1);
  transition: filter 0.6s ease, transform 0.7s ease;
}


/* 新闻板块：三列两端对齐，中间留空 */
/* 新闻三列等分（覆盖所有可能干扰的样式） */
.news .grid--3 {
  display: flex;
  flex-wrap: nowrap;
  gap: 1vw;
}

.news .grid--3 > *,
.news .grid--3 .card-photo,
.news .grid--3 .card-photo--news {
  flex: 1 1 0 !important;       /* ★ 等分宽度，最高优先级 */
  min-width: 0 !important;      /* 允许收缩 */
  margin: 0 !important;         /* 清除多余外边距 */
}

/* 确保图片填满并保持比例 */
.news .card-photo__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 10/7;           /* 保持原有宽高比 */
}

/* 图片放大不超出容器（父级已有 overflow: hidden 则无需重复，但为确保可加） */
.news .card-photo__media {
  overflow: hidden;
}


/* 悬停变色仍生效 */
.feature__item:hover .feature__media img {
  filter: grayscale(0);
  transform: scale(1.02);
}
.feature__text { margin-top:26px; color:#555; font-size: clamp(14px,1.1vw,16px); line-height:2; letter-spacing:.4px; }

/* ============ 6. 页脚 ============ */
.site-footer {
  position: relative;
  background: var(--color-black);           /* 只保留纯色背景 */
  color: #cfcfcf;
  padding-top: clamp(54px, 6vw, 88px);
  overflow: hidden;
}



/* 确保页脚内容层级高于背景 */
.footer__inner,
.footer__bottom {
  position: relative;
  z-index: 1;
}
/* 左侧品牌徽标水印（按样稿，淡色） */
.footer__watermark { position:absolute; left:-26px; top:50%; transform:translateY(-50%); width:300px; height:360px; opacity:.05; pointer-events:none; z-index:1; }
.footer__inner { position:relative; z-index:2; display:grid; grid-template-columns:1.2fr 1fr 1fr .8fr 1.4fr; gap: clamp(24px,3vw,50px); padding-bottom: clamp(40px,5vw,72px); }
.footer__col h3 { font-size:15px; color:#fff; margin-bottom:15px; letter-spacing:1px;font-weight:normal; }

.footer__col p { color:#FFFFFF; font-size:14px; line-height:2; }
.footer__col ul li { margin-bottom:4px; }
/* 提案：悬停文字变灰 */
.footer__col a, .policy a { color:#ffffff; font-size:14px; transition: color .3s; }
.footer__col a:hover, .policy a:hover { color:#7d7d7d; }
.footer__sublist { margin-top:26px; }

.subscribe { display:flex; flex-direction:column; align-items:flex-start; gap:22px; }
.subscribe__field { width:100%; }
.subscribe__field.underline{border-bottom: 1px solid #FFFFFF;border-top: 1px solid #FFFFFF;    padding-bottom: 15px;
    padding-top: 17px;}
.subscribe__label { display:block; color:#FFFFFF; font-size:14px;position:absolute;margin:0px;margin-top:7px; }
.subscribe input { width:100%; background:transparent; border:0; color:#fff; padding:8px 2px; font-size:15px; transition: border-color .3s;text-indent:45px; }
.subscribe input:focus { outline:none; border-color: var(--color-gold); }
.subscribe .btn--pill { color:#fff; background:transparent; border-color: rgba(255,255,255,.5); }
.subscribe .btn--pill:hover { background:#fff; color:#111; border-color:#fff; }
.subscribe__hint { font-size:13px; color: var(--color-gold-2); min-height:1em; }

.footer__bottom { position:relative; z-index:2; display:flex; flex-wrap:wrap; gap:14px 28px; justify-content:center; align-items:center; padding:26px; border-top:1px solid rgba(255,255,255,.08); }
.footer__legal { display:flex; align-items:center; flex-wrap:wrap; color:#8a8a8a; font-size:13px; }
.footer__legal .pc{display: flex;}
.footer__legal .mob{display: none;}
.footer__legal a { color:#ffffff; transition: color .3s; }
.footer__legal a:hover { color:#7d7d7d; }
.social { display:flex; gap:0; flex-wrap:wrap; }
.social li:not(:last-child)::after { content:"｜"; color:#444; margin:0 12px; }
.social a { color:#9a9a9a; font-size:13px; transition: color .3s; }
.social a:hover { color:#fff; }



/* ============ 页脚新排版 ============ */
.site-footer {
  position: relative;
  background: #000000;
  color: #cfcfcf;
  padding-top: 40px;
  overflow: hidden;
}

/* 左侧水印（保留） */
.footer__watermark {
  position: absolute;
  left: -26px;
  top: 50%;
  transform: translateY(-50%);
  width: 300px;
  height: 360px;
  /*background: url('../assets/LOGObig.png') left center / contain no-repeat;*/
  opacity: 0.02;
  pointer-events: none;
  z-index: 1;
}

/* 三列主容器 */
.footer__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 0.7fr 1.7fr 1.3fr;   /* 左中右比例，可根据内容微调 */
  gap: clamp(24px, 4vw, 60px);
  padding-bottom: 40px;
}

/* 左侧地址列 */
.footer__col--addr {
  /* 无需特殊宽度 */
}

/* 中间列 */
.footer__col--middle {
  display: flex;
  flex-direction: column;
}

/* 中间三小列菜单并排 */
.footer__menu-grid {
  display: flex;
  flex-wrap: wrap;
}

.footer__menu-block {
  flex: 1 1 auto;
  min-width: 120px;
}

/* 菜单内间距微调 */
.footer__menu-block ul {
  margin-bottom: 0;
}

.footer__sublist {
  margin-top: 30px;
}

/* 版权信息（中间底部） */
.footer__legal {
  margin-top: auto;            /* 推至底部 */
  padding-top: 20px;
  text-align: center;
  color: #ffffff;
  font-size: 13px;
}

/* 右侧订阅列 */
.footer__col--news {
  display: flex;
  flex-direction: column;
}

/* 社交链接 */
.social {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-top: auto;            /* 推至底部 */
  padding-top: 20px;
}

.social li:not(:last-child)::after {
  content: "｜";
  color: #ffffff;
  margin: 0px;
}

.social a {
  color: #ffffff;
  font-size: 13px;
  transition: color .3s;
}

.social a:hover {
  color: #7d7d7d;
}

/* 响应式调整：平板及以下改为两列或单列 */
@media (max-width: 1024px) {
  .footer__inner {
    grid-template-columns: 1fr 2fr;   /* 左中两列，右侧换行到下一行 */
  }
  .footer__col--news {
    grid-column: 1 / -1;
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }
  .social {
    margin-top: 0;
    padding-top: 0;
  }
}

@media (max-width: 768px) {
  .kx {
    height: 60px;
}
  .footer__inner {
    grid-template-columns: 1fr;      /* 单列堆叠 */
    gap: 32px;
  }
  .footer__menu-grid {
    flex-direction: column;
    gap: 24px;
  }
  .footer__col--news {
    flex-direction: column;
  }
  .social {
    margin-top: 20px;
  }

}

/* ============ 7. 工具 / 弹窗 ============ */
.to-top { position:fixed; right:22px; bottom:26px; z-index:900; width:46px; height:46px; border-radius:50%; background: var(--color-black); color:#fff; display:flex; align-items:center; justify-content:center; opacity:0; visibility:hidden; transform: translateY(10px); transition: opacity .3s, transform .3s, background .3s; }
.to-top.is-visible { opacity:1; visibility:visible; transform: translateY(0); }
.to-top:hover { background:#000; }
.modal { position:fixed; inset:0; z-index:2000; background: rgba(0,0,0,.9); display:flex; align-items:center; justify-content:center; opacity:0; visibility:hidden; transition: opacity .35s; }
.modal.is-open { opacity:1; visibility:visible; }
.modal__body { width:min(90vw,1000px); text-align:center; }
.modal__body video { width:100%; aspect-ratio:16/9; background:#000; }
.modal__placeholder { color:#888; font-size:13px; margin-top:14px; }
.modal__placeholder code { color:#b69b6a; }
.modal__close { position:absolute; top:20px; right:28px; color:#fff; font-size:40px; line-height:1; transition: color .3s; }
.modal__close:hover { color: var(--color-gold); }

/* ============ 8. 滚动揭示 ============ */
.reveal { opacity:0; transform: translateY(28px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible { opacity:1; transform:none; }
.grid .reveal:nth-child(2){ transition-delay:.1s; }
.grid .reveal:nth-child(3){ transition-delay:.2s; }

/* ============ 9. 响应式 ============ */
@media (max-width:1024px) {
  .nav-main, .utility-links, .lang { display:none; }
  .hamburger { display:flex; }
  .nav-utility { gap:8px;}
  .dropdown-host, .dropdown-backdrop { display:none; }
  /* 平板：3列，总部地址/目录/产品系列 | 公司+订阅跨列 */
  .footer__inner { grid-template-columns: repeat(3, 1fr); }
  .footer__col--news { grid-column: 2 / -1; }
}
@media (max-width:768px) {
  :root { --header-h:60px; }
  .grid--3 { grid-template-columns: repeat(2,1fr); }
    .news .grid--3 {
    gap: 3vw;
  }
  .news .grid--3 {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .news .grid--3 .card-photo {
    width: 100%;
    margin: 0;
  }
  .feature__grid { grid-template-columns:1fr; }
  .arrow { width:42px; height:42px; }
  /* 大手机（768px以下）：2列 */

.site-footer{padding-top: 10px;}
.footer__watermark{display: none;}
.footer__col--addr{display: none;}
.footer__menu-grid{display: none;}
.footer__legal{margin: auto;}
  .footer__legal .mob{display: flex;}


.footer__legal .pc{display: none;}

.footer__col--news{display: none;}

}

@media (max-width:560px) {
  .grid--3 { grid-template-columns:1fr; }
  .grid--2 { grid-template-columns:1fr; gap:40px; }
  .catalogues__grid { max-width:360px; }
  .nav-utility { gap:8px; display: none;}
  /* 手机：单列 */
  .footer__inner { grid-template-columns:1fr; gap:32px; }
  .footer__col--news { grid-column: auto; }
  .footer__bottom { flex-direction:column; align-items:flex-start; gap:16px; }
  /* 版权栏：纵向堆叠，隐藏竖线分隔 */
  .footer__legal { flex-direction:column; align-items:flex-start; gap:6px; }
  .footer__legal .mob{display: flex;}
.footer__legal .pc{display: none;}
  .footer__sep { display:none; }
  /* social 允许换行 */
  .social { flex-wrap:wrap; gap:4px 0; }
  .product-card { flex-basis:70vw; }
  .philosophy__text br { display:none; }
  .to-top { right:14px; bottom:16px; }
}

/* ============ 10. 通用子页（面包屑 · 页面标题区） ============ */
.breadcrumb-bar {
  background: #fff;
  padding: 13px 0;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 13px;
  font-size: 13px;
  color: #aaa;
  letter-spacing: .3px;
}
.breadcrumb a { color: #aaa; transition: color .25s; }
.breadcrumb a:hover { color: #333; }
.breadcrumb__sep { color: #ddd; }
.breadcrumb > span:last-child { color: #555; }

.page-hero { padding-block:40px }
.page-hero__inner { text-align: center; }
.page-hero__sub {
  margin-top: 22px;
  color: #000000;
  font-size: clamp(15px, 1vw, 17px);
  letter-spacing: 3px;
}

/* 无障碍：尊重减少动效 */
/*@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration:.001ms !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
  .reveal { opacity:1; transform:none; }
}*/


/* ---- 搜索切换 ---- */
.search-toggle {
  position: relative;
  display: flex;
  align-items: center;
}
.search-toggle__form {
  position: absolute;
  right: 100%;                 /* 从按钮左侧滑出 */
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  width: 0;
  overflow: hidden;
  background: #fff;
  border-radius: 4px;
  transition: width 0.3s ease;
  z-index: 100;
}
.search-toggle.is-open .search-toggle__form {
  width: 220px;                /* 展开宽度，可按需调整 */
}
.search-toggle__input {
  flex: 1;
  padding: 8px 12px;
  border: none;
  outline: none;
  font-size: 14px;
  background: transparent;
  min-width: 0;
}
.search-toggle__submit {
  padding: 8px;
  border: none;
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  color: #333;
  flex-shrink: 0;
}
.search-toggle__submit:hover {
  color: #000;
}

/* 移动端子菜单 */
.mobile-submenu-wrapper {
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.mobile-submenu-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 18px 4px;
  background: none;
  border: none;
  color: #fff;
  font-size: 17px;
  text-align: left;
  cursor: pointer;
}
.mobile-submenu-arrow {
  transition: transform 0.3s;
  flex-shrink: 0;
}
.mobile-submenu-wrapper.is-open .mobile-submenu-arrow {
  transform: rotate(180deg);
}
.mobile-submenu {
  display: none;
  padding: 0 0 8px 16px;
}
.mobile-submenu-wrapper.is-open .mobile-submenu {
  display: block;
}
.mobile-submenu a {
  display: block;
  color: #ccc;
  font-size: 15px;
  padding: 10px 4px;
  border-bottom: none;
}
.mobile-submenu a:hover {
  color: #fff;
}















/* 确保右侧画廊与左侧等高 */
.mega__right {
  display: flex;
  align-items: stretch;
}

/* 图片画廊容器：6 列均分，高度占满 */
/*.mega__gallery {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
  height: 100%;        
  align-content: start;
}*/

/* 每个缩略图：固定宽高比，高度自动填充 */
/*.mega__thumb {
  width: 100%;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: #f2f2f2;
}
.mega__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}*/
.mega__thumb:hover img {
  transform: scale(1.05);
}