/* ==========================================================================
   北京跨界设计 - 首页样式（按原站 renderData 精确还原）
   全局字体：微软雅黑；正文14px #666；辅助 #999；装饰 #d2d2d2
   ========================================================================== */

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { font-family: "微软雅黑", "Microsoft YaHei", sans-serif; color: #666; font-size: 14px; background: #fff; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; height: auto; border: 0; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* ========== Header（吸顶：顶部白底，下滑固定跟随+微透明） ========== */
.site-header { position: sticky; top: 0; left: 0; z-index: 20; width: 100%; background: #fff; transition: background .3s ease; }
.site-header.scrolled { background: rgba(255,255,255,.45); }
.container { width: 100%; margin: 0 auto; padding: 0; }
.header-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 90px;
  padding: 0 12vw;
}
.logo { display: flex; align-items: center; justify-self: start; }
.logo img { height: 40px; width: auto; }

.main-nav { display: flex; justify-content: center; width: 100%; min-width: 0; align-items: center; }
.main-nav > ul { display: flex; gap: 28px; align-items: center; margin: 0; padding: 0; list-style: none; }
.main-nav > ul > li { position: relative; white-space: nowrap; }
.main-nav ul li a {
  font-size: 14px; color: #212121; line-height: 1; padding: 8px 2px;
  transition: color .2s; display: block; position: relative;
}
.main-nav ul li a::after {
  content: ''; position: absolute; left: 50%; bottom: -6px; width: 0; height: 2px;
  background: #212121; transition: all .3s ease; transform: translateX(-50%);
}
.main-nav ul li a:hover { color: #212121; }
.main-nav ul li a.active { color: #212121; font-weight: 500; }
.main-nav ul li a.active::after { width: 100%; }

.header-tel { font-size: 19px; color: #000; font-weight: bold; white-space: nowrap; justify-self: end; text-align: right; letter-spacing: .5px; display: flex; align-items: center; height: 100%; }

/* ========== 右侧悬浮工具栏 ========== */
.side-tool {
  position: fixed; right: 12px; top: 50%; transform: translateY(-50%); z-index: 50;
  display: flex; flex-direction: column;
  background: #fff; box-shadow: 0 2px 12px rgba(0,0,0,.12);
  border-radius: 8px;
}
.tool-item {
  width: 60px; height: 70px; display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  color: #555; font-size: 12px; border-bottom: 1px solid #f0f0f0;
  transition: all .2s; cursor: pointer;
}
.tool-item:last-child { border-bottom: 0; }
.tool-item:hover { background: #2b2b2b; color: #fff; }
.tool-ico { width: 22px; height: 22px; margin-bottom: 4px; background-size: contain; background-repeat: no-repeat; background-position: center; filter: invert(.3); }
.tool-item:hover .tool-ico { filter: invert(1); }
.tool-ico-tel { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M20.01 15.38c-1.23 0-2.42-.2-3.53-.56-.35-.12-.74-.03-1.01.24l-1.57 1.97c-2.83-1.35-5.48-3.9-6.89-6.83l1.95-1.66c.27-.28.35-.67.24-1.02-.37-1.11-.56-2.3-.56-3.53 0-.54-.45-.99-.99-.99H4.19C3.65 3 3 3.24 3 3.99 3 13.28 10.73 21 20.01 21c.71 0 .99-.63.99-1.18v-3.45c0-.54-.45-.99-.99-.99z'/%3E%3C/svg%3E"); }
.tool-ico-wx { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M8.69 3C4.44 3 1 5.8 1 9.28c0 2 1.12 3.77 2.86 4.92L3 16.82l2.75-1.4c.86.25 1.78.39 2.74.4 2.01-3.44 6.03-5.78 10.62-5.81C18.63 6.09 14.09 3 8.69 3zm-2.6 3.38c.53 0 .96.43.96.96 0 .53-.43.96-.96.96-.53 0-.96-.43-.96-.96 0-.53.43-.96.96-.96zm4.85 0c.53 0 .96.43.96.96 0 .53-.43.96-.96.96-.53 0-.96-.43-.96-.96 0-.53.43-.96.96-.96zm5.85 3.13c-3.97 0-7.2 2.6-7.2 5.82 0 3.22 3.23 5.82 7.2 5.82.82 0 1.61-.12 2.35-.34l2.25 1.16-.72-2.13c1.44-1.02 2.34-2.53 2.34-4.21 0-3.22-3.23-5.82-7.22-6.12zm-2.22 2.68c.4 0 .72.32.72.72s-.32.72-.72.72c-.4 0-.72-.32-.72-.72s.32-.72.72-.72zm4.45 0c.4 0 .72.32.72.72s-.32.72-.72.72c-.4 0-.72-.32-.72-.72s.32-.72.72-.72z'/%3E%3C/svg%3E"); }
.tool-ico-top { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M7.41 15.41 12 10.83l4.59 4.58L18 14l-6-6-6 6z'/%3E%3C/svg%3E"); }
.tool-ico-video { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M17 10.5V7c0-.55-.45-1-1-1H4c-.55 0-1 .45-1 1v10c0 .55.45 1 1 1h12c.55 0 1-.45 1-1v-3.5l4 4v-11l-4 4z'/%3E%3C/svg%3E"); }
.tool-ico-loc { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='currentColor'%3E%3Cpath d='M12 2C8.13 2 5 5.13 5 9c0 5.25 7 13 7 13s7-7.75 7-13c0-3.87-3.13-7-7-7zm0 9.5c-1.38 0-2.5-1.12-2.5-2.5s1.12-2.5 2.5-2.5 2.5 1.12 2.5 2.5-1.12 2.5-2.5 2.5z'/%3E%3C/svg%3E"); }
.tool-item-has-tip { position: relative; }
.tool-tip {
  position: absolute; right: 100%; top: 50%;
  transform: translate(20px, -50%);
  opacity: 0; visibility: hidden;
  transition: all .25s ease;
  white-space: nowrap;
  background: #fff; color: #555;
  box-shadow: -2px 0 12px rgba(0,0,0,.12);
  border-radius: 4px;
  margin-right: 8px;
  z-index: 999;
  min-width: fit-content;
}
.tool-tip-tel {
  padding: 0 16px; height: 40px; line-height: 40px;
  font-size: 14px; text-decoration: none; color: #555;
}
.tool-tip-txt {
  padding: 10px 16px; font-size: 13px; max-width: 240px;
  white-space: normal; line-height: 1.6;
}
.tool-tip-qr {
  padding: 14px 14px 10px; text-align: center;
  width: 150px;
}
.tool-tip-qr img { width: 150px; height: 150px; object-fit: contain; display: block; margin: 8px auto; }
.tool-tip-qr p { font-size: 13px; color: #555; margin: 0; line-height: 1.6; }
.tool-tip-txt {
  padding: 0 18px; height: 40px; line-height: 40px;
  font-size: 14px; white-space: nowrap; max-width: none;
}
.tool-item-has-tip:hover .tool-tip {
  transform: translate(0, -50%);
  opacity: 1; visibility: visible;
}

/* ========== Footer ========== */
.site-footer { background: #222222; color: #aaa; padding: 50px 30px 20px; font-size: 14px; }
.site-footer .container { width: 100%; max-width: 1400px; margin: 0 auto; padding: 0; }
.footer-inner { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 30px; border-bottom: 1px solid rgba(255,255,255,.08); }
.footer-brand strong { font-size: 18px; color: #fff; font-weight: 600; display: block; margin-bottom: 12px; }
.footer-brand p { color: #888; line-height: 2; }
.footer-nav h4 { font-size: 15px; color: #ddd; font-weight: 500; margin-bottom: 14px; }
.footer-nav ul li { line-height: 2; }
.footer-nav ul li a { color: #888; transition: color .2s; }
.footer-nav ul li a:hover { color: #fff; }
.footer-bottom { padding-top: 20px; display: flex; justify-content: space-between; align-items: center; color: #666; font-size: 13px; }
.footer-bottom a { color: #888; }
.footer-bottom a:hover { color: #fff; }

/* ========== Hero 轮播 ========== */
.banner { position: relative; width: 100%; padding-bottom: 41.8495%; background: #191919; overflow: hidden; }
.banner-slide { position: absolute; inset: 0; background-size: cover; background-position: center center; opacity: 0; transition: opacity 1.2s ease; }
.banner-slide.active { opacity: 1; }
.banner-text-img { position: absolute; left: 12.5%; top: 50%; transform: translateY(-50%); height: 21%; width: auto; z-index: 1; }
.banner-dots { position: absolute; left: 0; right: 0; bottom: 24px; display: flex; justify-content: center; gap: 10px; z-index: 2; }
.banner-dots i { width: 28px; height: 3px; background: rgba(255,255,255,.4); cursor: pointer; }
.banner-dots i.active { background: #fff; }

/* ========== 区块通用标题 ========== */
.sec-title { text-align: center; line-height: 16px; }
.sec-en { font-size: 24px; line-height: 20px; color: #212121; }
.sec-dash { line-height: 16px; font-size: 16px; color: inherit; }
.sec-dash-lg { font-size: 20px; }
.sec-dash-dark { color: #333; }
.sec-en-dark { color: #333; }
.sec-sub { font-size: 16px; line-height: 20px; color: #666; }
.sec-sub span { color: #666; }
.btn-center { text-align: center; }

/* ========== 按钮（原站系统按钮 prop0=5 描边样式） ========== */
.btn {
  display: inline-block;
  height: 40px; line-height: 38px;
  padding: 0 28px;
  background: rgba(255,255,255,0);
  border: 1px solid #333;
  color: #2b2b2b;
  font-size: 14px; font-family: "微软雅黑", sans-serif;
  transition: all .25s ease;
  cursor: pointer;
}
.btn:hover { background: #2b2b2b; border-color: #eee; color: #fff; }
.btn:hover .arrow { transform: translateX(4px); }
.btn .arrow { display: inline-block; margin-left: 4px; transition: transform .25s ease; }
.btn-white { background: #fff; border-color: #fff; color: #fff; }
.btn-white:hover { background: #fff; border-color: #fff; color: #fff; }
.btn-dark-fill { background: #2b2b2b; border-color: #2b2b2b; color: #fff; }
.btn-dark-fill:hover { background: #191919; border-color: #191919; color: #fff; }

/* ========== ABOUT（row107）：pt/pb 7.29%，左右padding 12.54% ========== */
.about { padding: 7.29% 12.54%; background: #fff; text-align: center; }
.about .sec-title { margin-bottom: 42px; }
.about-text { max-width: 760px; margin: 0 auto; font-size: 14px; line-height: 42px; color: #666; text-align: center; }
.about-text p { color: #666; }
.about-text p a { color: #666; }
.about-text p b { color: #666; font-weight: 700; }
.about-text p + p { margin-top: 0; }
.about .btn-center { margin-top: 40px; }

/* ========== 背景图通用带（HOMESTAY 标题） ========== */
.sec-title-band {
  background-size: cover; background-position: center center; background-repeat: no-repeat;
  padding: 0 12.54% 4.17%;
  text-align: center;
}
.sec-title-band .sec-en, .sec-title-band .sec-dash, .sec-title-band .sec-sub { color: #2b2b2b; }
.sec-title-band .sec-sub { color: #333; }

/* ========== 案例通用（带背景图，左右 11.86%） ========== */
.case-band {
  background-size: cover; background-position: center center; background-repeat: no-repeat;
  padding: 8vw 11.86%;
  background-color: rgba(255,255,255,0);
}
.case-row { display: flex; align-items: flex-start; gap: 2.5vw; }
.case-row-11 > .case-col { flex: 1 1 0; }          /* 1:1 */
.case-row-75 > .case-col:first-child { flex: 7; }  /* 7:5 */
.case-row-75 > .case-col:last-child  { flex: 5; }
.case-row-48 > .case-col:first-child { flex: 4; }  /* 4:8 */
.case-row-48 > .case-col:last-child  { flex: 8; }

.case-col-pad-left { padding-left: 1vw; }
.case-col img { width: 100%; height: auto; display: block; }
.case-col .spatial-en { font-size: 18px; color: #d2d2d2; font-weight: 700; margin-top: 30px; }
.case-col .spatial-dash { font-size: 18px; color: #d2d2d2; line-height: 1; }
.case-col .case-title { font-size: 16px; color: #666; line-height: 25px; margin-top: 0; font-family: "微软雅黑", sans-serif; }
.case-col .case-meta { font-size: 14px; color: #999; line-height: 25px; }
.case-stack { display: flex; flex-direction: column; gap: 1.5vw; }

/* 案例①右列：图片在上、文字在下，图片与文字间距 */
.case-row-11 > .case-col:last-child > img { margin-bottom: 0; }

/* ========== 案例② 欧菲堡（row209）：左右两列flex布局，图片自然等比例缩放 ==========
   背景样式保持不动，只调整内部图片文字 */
.case2-band {
  padding-top: 0;
  padding-bottom: 4vw !important;
  background-size: cover;
  background-position: center calc(100% + 8vw);
}
.case2-wrap {
  display: flex;
  align-items: flex-start;
  gap: 1.8vw;
  width: 100%;
  padding-top: 0;
}
/* 左列：大图+文字 */
.case2-col-left {
  flex: 7;
}
.case2-col-left img {
  width: 100%;
  height: auto;
  display: block;
}
/* 右列：两张小图紧贴左面 */
.case2-col-right {
  flex: 5;
  display: flex;
  flex-direction: column;
  gap: 1vw;
  align-items: flex-start;
}
/* 右上图：与右下图保持原始比例460:580≈79% */
.case2-img-top {
  width: 79%;
  height: auto;
  display: block;
}
/* 右下图：紧贴左面 */
.case2-img-right {
  width: 100%;
  height: auto;
  display: block;
  margin-left: 0;
}
/* 文字样式 */
.case2-text {
  margin-top: 1.8vw;
}
.case2-text .spatial-en { font-size: 18px; color: #d2d2d2; font-weight: 700; margin: 0; }
.case2-text .spatial-dash { font-size: 18px; color: #d2d2d2; line-height: 1; margin: 8px 0 0; }
.case2-text .case-title { font-size: 16px; color: #666; line-height: 25px; margin: 10px 0 0; font-family: "微软雅黑", sans-serif; }
.case2-text .case-meta  { font-size: 14px; color: #999; line-height: 25px; margin: 0; }

/* ========== 案例① 藏地轻禅（row207 原站）：左竖图贴顶满高、右横图贴顶、文字右下 ========== */
.case1-band { padding-top: 0; }
.case1-wrap {
  position: relative;
  width: 100%;
  /* 容器高 ≈ 左竖图高 ≈ 48% × 1.205 ≈ 57.8% */
  aspect-ratio: 100 / 58;
}
.case1-wrap img {
  position: absolute;
  display: block;
  object-fit: cover;
}
.case1-img-left {
  left: 0; top: 0;
  width: 50%;
  height: 100%;
}
.case1-img-right {
  left: 52%; top: 30%;
  width: 46.5%;
  height: 42%;
}
.case1-text {
  position: absolute;
  left: 52%;
  top: 76%;
  width: 46.5%;
}
.case1-text .spatial-en { font-size: 18px; color: #d2d2d2; font-weight: 700; margin: 0; }
.case1-text .spatial-dash { font-size: 18px; color: #d2d2d2; line-height: 1; margin: 8px 0 0; }
.case1-text .case-title { font-size: 16px; color: #666; line-height: 25px; margin: 10px 0 0; font-family: "微软雅黑", sans-serif; }
.case1-text .case-meta  { font-size: 14px; color: #999; line-height: 25px; margin: 0; }

/* ========== 案例③ 时光步履（row208 原站真实参数）==========
   两列 4:8；图片自然比例无裁剪（480x720 / 930x440 / 687x418）
   右下图 margin-right:26.18% → 右边缩进变窄，与右上图左边对齐 */
.case3-band { padding-top: 5vw; }
.case3-wrap {
  position: relative;
  width: 100%;
  /* 容器高 ≈ 右列总高（右上 30.12%宽 + 间隙1.56vw + 右下 28.73%宽）≈ 60.9% 容器宽 */
  aspect-ratio: 100 / 60.9;
}
.case3-wrap img {
  position: absolute;
  display: block;
  object-fit: cover;
}
/* 左竖图：左列宽33.33%×(1-1.437%)，自然比例 2:3 */
.case3-img-left {
  left: 0; top: 0;
  width: 32.85%;
  height: 80.9%;
}
/* 右上横图：col1起点33.33% + margin-left 2.977%×66.67%，右边缩进1.54% */
.case3-img-top {
  left: 35.3%; top: 0;
  width: 63.7%;
  height: 49.5%;
}
/* 右下横图：与右上图左边对齐，margin-right:26.18% → 宽47.2%；margin-top:1.5625vw */
.case3-img-right {
  left: 35.3%;
  top: 52.8%;
  width: 47.2%;
  height: 47.2%;
}
/* 文字：左竖图正下方（图底49.28% + 323的margin-top 2.08vw）*/
.case3-text {
  position: absolute;
  left: 0;
  top: 85.4%;
  width: 33.33%;
}
.case3-text .spatial-en { font-size: 18px; color: #d2d2d2; font-weight: 700; margin: 0; }
.case3-text .spatial-dash { font-size: 18px; color: #d2d2d2; line-height: 1; margin: 8px 0 0; }
.case3-text .case-title { font-size: 16px; color: #666; line-height: 25px; margin: 10px 0 0; font-family: "微软雅黑", sans-serif; }
.case3-text .case-meta  { font-size: 14px; color: #999; line-height: 25px; margin: 0; }

/* ========== MOER+ 按钮带（row257） ========== */
.band-btn { padding: 0 12.4% 0; text-align: center; }

/* ========== 设计理念（CONCEPT）：背景图自带右侧竖排CONCEPT大字，左图+文字在下方 ========== */
.philosophy {
  background-size: cover;
  background-position: center calc(0% - 13vw);
  background-repeat: no-repeat;
  padding: 5vw 11.86%;
  position: relative;
  background-color: #fff;
}
.philo-row {
  position: relative;
  display: block;
}
.philo-video {
  position: relative;
  width: 78%;
  overflow: hidden;
  cursor: pointer;
}
.philo-video img {
  width: 100%; height: auto; display: block;
  transition: transform .5s ease;
}
.philo-video::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0);
  transition: background .4s ease;
  z-index: 1;
}
.philo-video:hover img { transform: scale(1.05); }
.philo-video:hover::after { background: rgba(0,0,0,.15); }
.philo-video .play {
  position: absolute;
  left: 50%;
  top: 0;
  transform: translate(-50%, -100%);
  width: 80px; height: 80px; border-radius: 50%;
  background: rgba(255,255,255,.9);
  cursor: pointer;
  opacity: 0;
  transition: all .45s cubic-bezier(.4,0,.2,1);
  z-index: 2;
  box-shadow: 0 4px 20px rgba(0,0,0,.2);
}
.philo-video .play::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,.7);
  transition: border-color .3s ease;
}
.philo-video:hover .play {
  top: 50%;
  transform: translate(-50%, -50%);
  opacity: 1;
}
.philo-video .play:hover {
  background: #fff;
  transform: translate(-50%, -50%) scale(1.08);
}
.philo-video .play:hover::before {
  border-color: #c9a96e;
}
.philo-video .play::after {
  content: '';
  position: absolute;
  left: 50%; top: 50%;
  transform: translate(-35%,-50%);
  width: 0; height: 0;
  border-left: 22px solid #2b2b2b;
  border-top: 14px solid transparent;
  border-bottom: 14px solid transparent;
}
/* 文字在图片下方 */
.philo-text {
  margin-top: 2vw;
  width: 78%;
  font-size: 14px;
  line-height: 2;
  color: #999;
}
.philo-text p span { font-size: 16px; color: #999; font-family: "微软雅黑", sans-serif; }
.philo-text p + p { margin-top: 10px; }

/* ========== 通用"纯背景白"标题带（BUSINESS/HOUSE 标题） ========== */
.sec-title-plain { padding: 1.67% 0 3.91%; background: #fff; text-align: center; }
.house-title { padding: 0; }
.house-title .sec-title { padding: 2vw 0 0; }

/* ========== BUSINESS 6格（row213，3列流水） ========== */
.business { padding: 0 11.86% 2.62%; background: #fff; }
.biz-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.biz-card { margin-bottom: 30px; }
.biz-card img { width: 100%; height: auto; display: block; }
.biz-title { font-size: 16px; line-height: 25px; color: #212121; margin-top: 14px; }
.biz-style { font-size: 14px; line-height: 25px; color: #999; }
.business .btn-center { margin-top: 10px; }

/* ========== HOUSE 别墅列表：上白下浅深灰渐变，三张图紧挨居中 ========== */
.house {
  background: linear-gradient(to bottom, #ffffff 0%, #ffffff 40%, #2a2a2a 40%, #2a2a2a 100%);
  padding: 0 11.86% 3vw;
}
.house-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  padding: 0;
}
.house-item {
  position: relative;
}
.house-item img {
  width: 100%;
  height: 22vw;
  object-fit: cover;
  display: block;
}
.house-cap {
  display: none;
}
.house-name { font-size: 16px; color: #212121; font-family: "微软雅黑", sans-serif; }
.house-sub { font-size: 16px; color: #212121; margin-top: 4px; }
.house .btn-center { margin-top: 3vw; }
/* 白框透明按钮 */
.house .btn {
  background: transparent;
  border: 1px solid #fff;
  color: #fff;
}
.house .btn:hover {
  background: #fff;
  border-color: #fff;
  color: #191919;
}

/* ========== CTA 横幅（row281，深底白字） ========== */
.cta { background: #222222; padding: 0; }
.cta-slide { padding: 1.2vw 11.86% 0.4vw; text-align: left; }
.cta-slide h2 { font-size: 30px; color: #fff; font-weight: normal; margin: 0; }

/* ========== 联系区（row279：左5#f9f9f9 + 右7深灰统一） ========== */
.contact { background: #222222; padding: 0.99% 0 0; }
.contact-row { display: flex; align-items: stretch; }
.contact-left { flex: 5; background: #f9f9f9; padding: 4vw; display: flex; flex-direction: column; justify-content: center; align-items: center; }
.contact-left-inner { width: 100%; max-width: 380px; text-align: left; }
.contact-right { flex: 7; background: #222222; padding: 50px 4vw; margin-bottom: 1.04%; color: #fff; }
.contact-left h3 { font-size: 30px; color: #212121; font-weight: normal; margin-bottom: 30px; }
.contact-right h3 { font-size: 30px; color: #fff; font-weight: normal; margin-bottom: 30px; }
.ci { display: flex; margin-bottom: 18px; font-size: 14px; line-height: 2; }
.ci-l { flex: 0 0 80px; color: #999; }
.ci-v { flex: 1; color: #212121; }
.qr-row { display: flex; gap: 30px; margin-top: 30px; }
.qr-row figure { text-align: center; }
.qr-row img { width: 130px; height: 130px; object-fit: contain; }
.qr-row figcaption { font-size: 14px; color: #999; margin-top: 10px; }

/* 表单 */
.form-field { margin-bottom: 18px; }
.form-field label { display: block; font-size: 14px; color: rgba(255,255,255,.6); margin-bottom: 8px; }
.form-field input, .form-field textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(255,255,255,.2);
  color: #fff;
  font-size: 14px; font-family: inherit;
  padding: 8px 0;
  line-height: 1.5;
  outline: none;
}
.form-field textarea { min-height: 70px; resize: none; padding-top: 8px; }
.form-field input::placeholder, .form-field textarea::placeholder { color: rgba(255,255,255,.4); }
.form-submit { margin-top: 25px; text-align: left; }
.form-submit .btn {
  background: #333;
  border: none;
  color: #fff;
  padding: 14px 60px;
  font-size: 16px;
  line-height: 1;
  display: inline-block;
  text-align: center;
}
.form-submit .btn:hover { background: #444; }

/* ========== 关于我们页面 ========== */
.about-hero { width: 100%; margin: 0; padding: 0; }
.about-hero-img { width: 100%; height: auto; display: block; }

/* ========== 联系我们页面 ========== */
.contact-page {
  width: 100%;
  background: #fff;
  padding: 0 6vw 4vw;
}
.contact-page-row {
  display: flex;
  min-height: 400px;
  justify-content: flex-end;
}
.contact-page-map {
  flex: 0 0 50%;
  position: relative;
}
.contact-page-map iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
.contact-page-info {
  flex: 0 0 50%;
  padding: 4vw 6vw 4vw 4vw;
  background: #fff;
}
.contact-page-title {
  font-size: 2.2vw;
  font-weight: 600;
  color: #333;
  letter-spacing: 0.05em;
  margin: 0 0 2vw;
}
.contact-page-desc {
  font-size: 14px;
  line-height: 2;
  color: #777;
  margin: 0 0 3vw;
  max-width: 460px;
}
.contact-page-subtitle {
  font-size: 15px;
  font-weight: 600;
  color: #333;
  margin: 0 0 1.5vw;
}
.contact-page-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.contact-page-list li {
  font-size: 14px;
  line-height: 2.4;
  color: #777;
}
.contact-page-list .label {
  color: #999;
}
.contact-page-map {
  flex: 0 0 50%;
  position: relative;
  margin-left: 2vw;
}
.contact-page-info {
  flex: 0 0 42%;
  padding: 3vw 0 3vw 5vw;
  background: #fff;
}
@media (max-width: 768px) {
  .contact-page-row { flex-direction: column; }
  .contact-page-map { flex: 0 0 auto; height: 50vw; min-height: 300px; }
  .contact-page-info { flex: 0 0 auto; padding: 6vw; }
  .contact-page-title { font-size: 24px; }
}

/* ========== 博客页面（文章列表 + 分页） ========== */
.blog-page { padding: 0 11.86% 5vw; background: #fff; }

/* 分类筛选 */
.blog-cats { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; padding: 0 0 1.6vw; }
.blog-cat {
  font-size: 13px; color: #666; text-decoration: none;
  padding: 5px 16px; border: 1px solid #e0e0e0; border-radius: 999px;
  transition: color .25s, border-color .25s, background .25s;
}
.blog-cat span { font-size: 11px; color: #aaa; margin-left: 5px; }
.blog-cat:hover { color: #c9a96e; border-color: #c9a96e; }
.blog-cat:hover span { color: #c9a96e; }
.blog-cat.cur { background: #c9a96e; border-color: #c9a96e; color: #fff; }
.blog-cat.cur span { color: rgba(255,255,255,.8); }

/* 空分类提示 */
.blog-empty { text-align: center; color: #999; font-size: 14px; font-weight: 300; padding: 6vw 0; }

.blog-list { list-style: none; margin: 0; padding: 0; }
.blog-list li { border-bottom: 1px solid #eaeaea; }
.blog-list li:first-child { border-top: 1px solid #eaeaea; }
.blog-item { display: flex; align-items: center; gap: 2vw; padding: 1.8vw 1vw; text-decoration: none; color: inherit; transition: background .3s ease; }
.blog-item:hover { background: #faf9f7; }
.blog-item-body { flex: 1; min-width: 0; }
.blog-item-meta { display: flex; align-items: center; gap: 12px; }
.blog-item-date { font-size: 12px; color: #999; letter-spacing: 1px; }
.blog-item-cat { font-size: 11px; color: #c9a96e; border: 1px solid #c9a96e; padding: 1px 8px; letter-spacing: 1px; }
.blog-item-title {
  font-size: 17px; font-weight: normal; color: #212121; line-height: 1.5;
  margin: 8px 0 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.blog-item:hover .blog-item-title { color: #c9a96e; }
.blog-item-excerpt {
  font-size: 13px; color: #888; line-height: 1.6;
  display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden;
}
.blog-item-more { flex: 0 0 auto; font-size: 13px; color: #999; }
.blog-item:hover .blog-item-more { color: #c9a96e; }

/* 分页器 */
.blog-pager { display: flex; justify-content: center; align-items: center; gap: 10px; margin-top: 4vw; }
.blog-pager .pg {
  min-width: 38px; height: 38px; line-height: 36px;
  padding: 0 12px; text-align: center;
  border: 1px solid #ddd; color: #666;
  font-size: 14px; text-decoration: none;
  transition: all .25s ease;
}
.blog-pager .pg:hover { border-color: #c9a96e; color: #c9a96e; }
.blog-pager .pg.cur { background: #c9a96e; border-color: #c9a96e; color: #fff; }

@media (max-width: 768px) {
  .blog-item { flex-wrap: wrap; gap: 8px; }
  .blog-item-title { font-size: 16px; white-space: normal; }
  .blog-item-more { flex: 0 0 100%; }
}

/* ========== 博客详情页 ========== */
/* 左上角返回博客悬浮按钮 */
.blog-back-fixed {
  position: fixed; left: 0; top: 110px; z-index: 15;
  display: flex; align-items: center; gap: 6px;
  background: rgba(34,34,34,.78); color: #fff;
  padding: 12px 16px 12px 12px;
  border-radius: 0 4px 4px 0;
  text-decoration: none;
  font-size: 13px; letter-spacing: 1.5px;
  transition: background .25s ease;
}
.blog-back-fixed:hover { background: #c9a96e; }
.blog-back-arrow { font-size: 18px; line-height: 1; }
@media (max-width: 768px) {
  .blog-back-fixed { top: 96px; padding: 10px 12px 10px 10px; font-size: 12px; }
  .blog-toc { display: none; }
  .blog-detail-wrap { flex-direction: column; }
}

.blog-detail { padding: 0 11.86% 6vw; background: #fff; }
.blog-detail-wrap { max-width: 1200px; margin: 0 auto; display: flex; gap: 3vw; align-items: flex-start; }

/* 左侧目录（浮动卡片） */
.blog-toc { flex: 0 0 250px; position: sticky; top: 110px; }
.blog-toc-inner { background: #faf9ff; border-radius: 8px; padding: 20px 22px; box-shadow: 0 2px 12px rgba(0,0,0,.06); }
.blog-toc-title { font-size: 16px; font-weight: 600; color: #333; margin: 0 0 14px; letter-spacing: 1px; }
.blog-toc-list { list-style: none; margin: 0; padding: 0; }
.blog-toc-list li { margin: 0; }
.blog-toc-list a { display: block; font-size: 14px; color: #888; line-height: 1.8; padding: 6px 0 6px 14px; border-left: 2px solid transparent; transition: all .2s; }
.blog-toc-list a:hover { color: #555; }
.blog-toc-list a.active { color: #c9a96e; border-left-color: #c9a96e; }
.blog-toc-list .toc-h1 a { padding-left: 0; font-size: 14px; font-weight: 600; color: #555; }
.blog-toc-list .toc-h2 a { padding-left: 14px; font-size: 14px; }
.blog-toc-list .toc-h3 a { padding-left: 26px; font-size: 13px; }
.blog-toc-list .toc-h4 a { padding-left: 38px; font-size: 12px; color: #aaa; }

/* 右侧文章 */
.blog-article { flex: 1; min-width: 0; max-width: 760px; }
.blog-article-head { text-align: center; padding: 1vw 0 2.5vw; }
.blog-article-title { font-size: 26px; font-weight: normal; color: #212121; line-height: 1.6; margin: 0 0 16px; }
.blog-article-meta { display: flex; justify-content: center; align-items: center; gap: 14px; }
.blog-article-date { font-size: 13px; color: #999; letter-spacing: 1px; }
.blog-article-cat { font-size: 12px; color: #c9a96e; border: 1px solid #c9a96e; padding: 2px 10px; letter-spacing: 1px; }
.blog-article-cover { width: 100%; height: auto; display: block; }
.blog-article-excerpt { margin: 1.6em 0 0; padding: 1.2em 1.6em; background: #f9f9f9; border-left: 3px solid #c9a96e; font-size: 14px; color: #777; line-height: 1.9; }
.blog-article-body { padding: 3vw 0 0; }
.blog-article-body p { font-size: 15px; color: #555; line-height: 2; margin: 0 0 1.8em; text-align: justify; }
.blog-article-body p:first-child { color: #333; }
.blog-article-img { width: 100%; height: auto; display: block; margin: 0 0 1.8em; }
.blog-article-body h2 { font-size: 22px; font-weight: 600; color: #222; margin: 2.6em 0 1em; line-height: 1.4; }
.blog-article-body h3 { font-size: 18px; font-weight: 600; color: #333; margin: 2em 0 0.8em; line-height: 1.5; }
.blog-article-body h4 { font-size: 16px; font-weight: 600; color: #333; margin: 1.6em 0 0.6em; }
.blog-article-body ul { margin: 0 0 1.8em 1.5em; padding: 0; }
.blog-article-body ul li { font-size: 15px; color: #555; line-height: 2; list-style: disc; }
.blog-article-body ol { margin: 0 0 1.8em 1.5em; padding: 0; }
.blog-article-body ol li { font-size: 15px; color: #555; line-height: 2; list-style: decimal; }
.blog-article-body blockquote { margin: 2em 0; padding: 1.2em 1.8em; background: #f9f9f9; border-left: 3px solid #c9a96e; }
.blog-article-body blockquote p { font-size: 14px; color: #777; line-height: 1.9; margin: 0; }
.blog-article-body blockquote p:last-child { margin-bottom: 0; }
.blog-article-body strong { font-weight: 600; color: #333; }
.blog-article-body img { max-width: 100%; height: auto; display: block; margin: 1.8em auto; }
.blog-article-body a { color: #c9a96e; text-decoration: underline; }
.blog-article-body h1 { font-size: 26px; font-weight: 700; color: #1a1a1a; margin: 2.8em 0 1.2em; line-height: 1.4; }
.blog-article-body h2 { font-size: 22px; font-weight: 600; color: #222; margin: 2.6em 0 1em; line-height: 1.4; }
.blog-article-body h3 { font-size: 18px; font-weight: 600; color: #333; margin: 2em 0 0.8em; line-height: 1.5; }
.blog-article-body h4 { font-size: 16px; font-weight: 600; color: #333; margin: 1.6em 0 0.6em; }
.blog-article-body h5 { font-size: 15px; font-weight: 600; color: #444; margin: 1.4em 0 0.5em; }
.blog-article-body h6 { font-size: 14px; font-weight: 600; color: #555; margin: 1.2em 0 0.4em; }
.blog-article-body p { font-size: 15px; color: #555; line-height: 2; margin: 0 0 1.8em; text-align: justify; }
.blog-article-body p:first-child { color: #333; }
.blog-article-body ul { margin: 0 0 1.8em 1.5em; padding: 0; }
.blog-article-body ul li { font-size: 15px; color: #555; line-height: 2; list-style: disc; }
.blog-article-body ol { margin: 0 0 1.8em 1.5em; padding: 0; }
.blog-article-body ol li { font-size: 15px; color: #555; line-height: 2; list-style: decimal; }
.blog-article-body blockquote { margin: 2em 0; padding: 1.2em 1.8em; background: #f9f9f9; border-left: 3px solid #c9a96e; }
.blog-article-body blockquote p { font-size: 14px; color: #777; line-height: 1.9; margin: 0; }
.blog-article-body blockquote p:last-child { margin-bottom: 0; }
.blog-article-body strong { font-weight: 600; color: #333; }
.blog-article-body em { font-style: italic; color: #555; }
.blog-article-body img { max-width: 100%; height: auto; display: block; margin: 1.8em auto; }
.blog-article-body a { color: #c9a96e; text-decoration: underline; }
.blog-article-body hr { border: none; border-top: 1px solid #eee; margin: 2.4em 0; }
.blog-article-body table { width: 100%; border-collapse: collapse; margin: 1.8em 0; font-size: 14px; }
.blog-article-body table th { background: #f9f9f9; font-weight: 600; color: #333; text-align: left; padding: 10px 14px; border: 1px solid #e5e5e5; }
.blog-article-body table td { padding: 10px 14px; border: 1px solid #e5e5e5; color: #555; line-height: 1.8; }
.blog-article-body table tr:nth-child(even) td { background: #fcfcfc; }
.blog-article-body pre { background: #f5f5f5; padding: 1em 1.4em; border-radius: 4px; overflow-x: auto; margin: 1.8em 0; font-size: 13px; line-height: 1.7; }
.blog-article-body code { background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px; color: #c9a96e; }
.blog-article-body pre code { background: none; padding: 0; color: #333; }

/* 上一篇/下一篇 */
.blog-article-nav {
  display: flex; gap: 20px;
  border-top: 1px solid #eaeaea; border-bottom: 1px solid #eaeaea;
  margin-top: 3vw;
}
.art-nav {
  flex: 1; min-width: 0;
  display: flex; flex-direction: column; gap: 8px;
  padding: 24px 16px;
  text-decoration: none;
}
.art-nav-next { text-align: right; }
.art-nav-label { font-size: 12px; color: #c9a96e; letter-spacing: 2px; }
.art-nav-title {
  font-size: 14px; color: #444; line-height: 1.6;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.art-nav:hover .art-nav-title { color: #c9a96e; }
.art-nav-empty { flex: 1; }
.blog-article-back { text-align: center; margin-top: 3vw; }
@media (max-width: 768px) {
  .blog-article-title { font-size: 20px; }
  .blog-article-nav { flex-direction: column; gap: 0; }
  .art-nav-next { text-align: left; border-top: 1px solid #eaeaea; }
  .art-nav-title { white-space: normal; }
}

/* ABOUT 介绍区块：左图右文 */
.about-intro { width: 100%; background: #fff; margin-top: 6vw; }
.about-intro-row { display: flex; }
.about-intro-left { flex: 0 0 50%; position: relative; }
.about-intro-left img { width: 100%; height: 100%; object-fit: cover; display: block; }
.about-intro-title {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 4vw;
  font-weight: 700;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.about-intro-right {
  flex: 0 0 50%;
  background: #f9f9f9;
  padding: 6vw 5vw;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.about-intro-right p {
  font-size: 14px;
  line-height: 2.8;
  color: #777;
  margin: 0 0 1em;
  text-indent: 0;
  font-weight: 300;
}
.about-intro-right .about-slogan {
  font-size: 14px;
  color: #777;
  margin: 1em 0 0;
  text-indent: 0;
  font-weight: 300;
}

/* CONCEPT 品牌内涵 */
.about-concept {
  width: 100%;
  background: #fff;
  padding: 5vw 10vw 7vw;
  text-align: center;
}
.about-concept-header { margin-bottom: 5vw; }
.about-concept-title {
  font-size: 1.3vw;
  font-weight: 500;
  color: #111;
  margin: 0 0 0.15vw;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  position: relative;
  display: inline-block;
}
.about-concept-title::after {
  content: '';
  display: block;
  width: 60%;
  height: 1px;
  background: #111;
  margin: 0.2vw auto 0;
}
.about-concept-subtitle {
  font-size: 0.9vw;
  color: #888;
  margin-top: 0.15vw;
  font-weight: 300;
  position: relative;
  left: -0.5em;
}
.about-concept-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3vw;
}
.about-concept-item img {
  width: 3vw;
  height: 3vw;
  object-fit: contain;
  margin: 0 auto 1.5vw;
  display: block;
}
.about-concept-item h3 {
  font-size: 1.6vw;
  font-weight: 300;
  color: #222;
  margin: 0 0 1.5vw;
  letter-spacing: 0.05em;
}
.about-concept-item p {
  font-size: 0.8vw;
  line-height: 2.6;
  color: #999;
  margin: 0;
  font-weight: 200;
}

/* FOUNDER 创始人介绍 */
.about-founder {
  width: 100%;
  background: #000;
  padding: 3vw 8vw 0;
  color: #fff;
  overflow: hidden;
}
.about-founder-row {
  display: flex;
  position: relative;
  min-height: 32vw;
}
.about-founder-left {
  flex: 0 0 45%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-left: 15vw;
}
.founder-title-en {
  font-size: 1.8vw;
  font-weight: 700;
  color: #fff;
  margin: 0 0 0.8vw;
  letter-spacing: 0.05em;
}
.founder-name {
  font-size: 2.2vw;
  font-weight: 500;
  color: #fff;
  margin: 0 0 2vw;
}
.founder-titles {
  list-style: none;
  padding: 0;
  margin: 0;
}
.founder-titles li {
  font-size: 0.75vw;
  color: #aaa;
  line-height: 2.4;
  font-weight: 300;
}
.about-founder-right {
  flex: 0 0 55%;
  position: relative;
  padding-top: 3vw;
  padding-bottom: 25vw;
}
.founder-quote {
  font-size: 1vw;
  color: #ddd;
  line-height: 2.6;
  margin: 0 3vw 0 3vw;
  font-weight: 400;
  font-family: "楷体", "KaiTi", "STKaiti", cursive;
  width: 90%;
  position: relative;
  z-index: 2;
}
.founder-img-wrap {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 0;
  width: 38%;
  z-index: 1;
}
.founder-img-wrap img {
  width: 100%;
  height: auto;
  display: block;
}

/* SERVICE 服务流程 */
.about-service {
  width: 100%;
  background: #fff;
  padding: 3vw 15vw 5vw;
  text-align: center;
}
.about-service-header { margin-bottom: 4vw; }
.about-service-title {
  font-size: 1.3vw;
  font-weight: 500;
  color: #111;
  margin: 0 0 0.15vw;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  position: relative;
  display: inline-block;
}
.about-service-title::after {
  content: '';
  display: block;
  width: 60%;
  height: 1px;
  background: #111;
  margin: 0.2vw auto 0;
}
.about-service-subtitle {
  font-size: 0.9vw;
  color: #888;
  margin-top: 0.15vw;
  font-weight: 300;
}
.about-service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5vw;
}
.about-service-item img {
  width: 2.2vw;
  height: 2.2vw;
  object-fit: contain;
  margin: 0 auto 1vw;
  display: block;
}
.about-service-item h3 {
  font-size: 1.2vw;
  font-weight: 300;
  color: #222;
  margin: 0 0 1vw;
  letter-spacing: 0.05em;
}
.about-service-item p {
  font-size: 0.75vw;
  line-height: 1.8;
  color: #999;
  margin: 0;
  font-weight: 200;
}

/* ========== 案例列表页通用样式 ========== */
.cases-hero { margin-top: 0; }

.case-gallery-section {
  padding: 7vw 12vw 7vw;
  text-align: center;
}
.case-gallery-header { margin-bottom: 5vw; }
.case-gallery-title {
  font-size: 1.3vw;
  font-weight: 500;
  color: #111;
  margin: 0 0 0.15vw;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  position: relative;
  display: inline-block;
}
.case-gallery-title::after {
  content: '';
  display: block;
  width: 60%;
  height: 1px;
  background: #111;
  margin: 0.2vw auto 0;
}
.case-gallery-subtitle {
  font-size: 0.9vw;
  color: #888;
  margin-top: 0.15vw;
  font-weight: 300;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2vw;
}
.case-card {
  background: #fff;
  padding: 1.5vw;
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  cursor: pointer;
  transition: all 0.3s ease;
}
.case-card:hover {
  transform: translateY(-0.5vw);
  box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}
.case-card-img {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}
.case-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}
.case-card:hover .case-card-img img {
  transform: scale(1.05);
}
.case-count-badge {
  position: absolute;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.7);
  color: #fff;
  font-size: 0.85vw;
  padding: 0.4vw 0.6vw;
  display: flex;
  align-items: center;
  gap: 0.3vw;
  min-width: 2.5vw;
  justify-content: center;
}
.case-ico-gallery {
  display: inline-block;
  width: 1vw;
  height: 1vw;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2'%3E%3Crect x='3' y='3' width='18' height='18' rx='2' ry='2'/%3E%3Ccircle cx='8.5' cy='8.5' r='1.5'/%3E%3Cpolyline points='21 15 16 10 5 21'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
}
.case-card-title {
  font-size: 0.9vw;
  font-weight: 400;
  color: #222;
  margin: 0.8vw 0 0;
  letter-spacing: 0.02em;
}

/* ========== CASES 作品影像（黑底+hover上滑遮罩） ========== */
.case-images-section {
  background: #000;
  padding: 7vw 12vw 8vw;
  text-align: center;
}
.case-images-header { margin-bottom: 5vw; }
.case-images-title {
  font-size: 1.3vw;
  font-weight: 500;
  color: #fff;
  margin: 0 0 0.15vw;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  position: relative;
  display: inline-block;
}
.case-images-title::after {
  content: '';
  display: block;
  width: 60%;
  height: 1px;
  background: #fff;
  margin: 0.2vw auto 0;
}
.case-images-subtitle {
  font-size: 0.9vw;
  color: #aaa;
  margin-top: 0.15vw;
  font-weight: 300;
}
.case-images-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2vw;
}
.case-image-card {
  position: relative;
  width: 100%;
  aspect-ratio: 418 / 269;
  overflow: hidden;
  cursor: pointer;
  background: #000;
}
.case-image-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}
.case-image-card:hover img {
  transform: scale(1.05);
}
/* 视频首帧做封面（老房修缮 CASES）：取视频中间部分（上下居中裁切） */
.case-image-card .case-image-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  display: block;
  transition: transform 0.6s ease;
}
.case-image-card:hover .case-image-video {
  transform: scale(1.05);
}
/* 无文字影像卡片：默认不显示底部条，hover 时显示全屏遮罩+放大镜 */
.case-image-card.no-name .case-image-overlay {
  height: 0;
}
.case-image-card.no-name:hover .case-image-overlay {
  height: 100%;
  background: rgba(0,0,0,0.65);
}
.case-image-overlay {
  position: absolute;
  left: 0; bottom: 0;
  width: 100%;
  height: 20%;
  background: rgba(0,0,0,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: all 0.4s ease;
}
.case-image-name {
  color: #fff;
  font-size: 0.8vw;
  font-weight: 300;
  letter-spacing: 0.03em;
  text-align: center;
}
.case-image-search {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%) scale(0.7);
  width: 4vw; height: 4vw;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: all 0.4s ease;
  pointer-events: none;
}
.case-image-search img {
  width: 1.8vw;
  height: 1.8vw;
  object-fit: contain;
}
.case-image-card:hover .case-image-overlay {
  height: 100%;
  background: rgba(0,0,0,0.65);
  justify-content: center;
  padding: 0;
}
.case-image-card:hover .case-image-search {
  opacity: 1;
  transform: translate(-50%, -60%) scale(1);
}
.case-image-card:hover .case-image-name {
  position: absolute;
  bottom: 15%;
  left: 0;
  width: 100%;
  text-align: center;
  font-size: 0.95vw;
}
.case-360-badge {
  position: absolute;
  top: 1vw; right: 1vw;
  color: #fff;
  font-size: 1.6vw;
  font-weight: 300;
  letter-spacing: 0.02em;
  line-height: 1;
  text-shadow: 0 0 8px rgba(0,0,0,0.8);
  pointer-events: none;
}
.case-360-badge::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 2.4vw; height: 2.4vw;
  border: 2px solid rgba(255,255,255,0.85);
  border-top-color: transparent;
  border-radius: 50%;
  transform: translate(-50%,-50%);
  animation: spin360 6s linear infinite;
}
@keyframes spin360 { to { transform: translate(-50%,-50%) rotate(360deg); } }

/* ========== 灯箱相册样式 ========== */
.lightbox-overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.92);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}
.lightbox-overlay.active { display: flex; }
.lightbox-close {
  position: absolute;
  top: 2vw; right: 3vw;
  color: #fff;
  font-size: 2.5vw;
  cursor: pointer;
  background: none;
  border: none;
  line-height: 1;
  opacity: 0.8;
  transition: opacity 0.2s;
  z-index: 10;
}
.lightbox-close:hover { opacity: 1; }
.lightbox-stage {
  position: relative;
  max-width: 70vw;
  max-height: 75vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lightbox-play-btn {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 4.5vw; height: 4.5vw;
  border-radius: 50%;
  background: rgba(0,0,0,0.5);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.25s ease;
  z-index: 10;
  pointer-events: auto;
}
.lightbox-play-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,0.6);
  transition: border-color 0.25s ease;
}
.lightbox-play-btn:hover {
  background: rgba(0,0,0,0.65);
}
.lightbox-play-btn:hover::before {
  border-color: rgba(255,255,255,0.9);
}
.lightbox-play-triangle {
  width: 0; height: 0;
  border-style: solid;
  border-width: 0.9vw 0 0.9vw 1.5vw;
  border-color: transparent transparent transparent #fff;
  margin-left: 0.3vw;
}
.lightbox-img {
  max-width: 100%;
  max-height: 75vh;
  object-fit: contain;
  display: block;
}
/* 视频居中 */
.lightbox-video-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.lightbox-video {
  max-width: 90%;
  max-height: 80vh;
  display: block;
}
.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  color: #fff;
  font-size: 3vw;
  cursor: pointer;
  background: rgba(255,255,255,0.1);
  border: none;
  width: 3.5vw;
  height: 3.5vw;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
  line-height: 1;
  z-index: 10;
}
.lightbox-nav:hover { background: rgba(255,255,255,0.25); }
.lightbox-prev { left: 2vw; }
.lightbox-next { right: 2vw; }
.lightbox-caption {
  color: #ccc;
  font-size: 1vw;
  margin-top: 1.5vw;
  text-align: center;
}
.lightbox-thumbs {
  display: flex;
  gap: 0.6vw;
  margin-top: 1.5vw;
  max-width: 80vw;
  overflow-x: auto;
  padding: 0.5vw 0;
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE/Edge */
}
.lightbox-thumbs::-webkit-scrollbar {
  display: none; /* Chrome/Safari */
}
.lightbox-thumb {
  width: 5vw;
  height: 4vw;
  object-fit: cover;
  cursor: pointer;
  opacity: 0.5;
  border: 2px solid transparent;
  transition: all 0.2s;
  flex-shrink: 0;
}
.lightbox-thumb.active {
  opacity: 1;
  border-color: #fff;
}
.lightbox-thumb:hover { opacity: 0.8; }

/* ========== 响应式兜底（窄屏简单堆叠） ========== */
@media (max-width: 900px) {
  .case-row { flex-direction: column; }
  .case-row-75 > .case-col, .case-row-48 > .case-col { flex: 1 1 auto; }
  .philo-row { flex-direction: column; }
  .philo-video { flex: 0 0 auto; width: 100%; }
  .contact-row { flex-direction: column; }
  .biz-grid { grid-template-columns: repeat(2,1fr); }
  .house-grid { grid-template-columns: repeat(2,1fr); }
  .form-row { flex-direction: column; gap: 0; }
  .case3-wrap { padding-bottom: 0; position: static; display: flex; flex-direction: column; gap: 12px; }
  .case3-wrap img { position: static !important; width: 100% !important; height: auto !important; left: auto !important; top: auto !important; bottom: auto !important; object-fit: contain; }
  .case3-text { position: static; width: 100%; }
  .case2-wrap { padding-bottom: 0; position: static; display: flex; flex-direction: column; gap: 12px; }
  .case2-wrap img { position: static !important; width: 100% !important; height: auto !important; left: auto !important; top: auto !important; object-fit: contain; }
  .case2-text { position: static; width: 100%; }
  .case1-wrap { padding-bottom: 0; position: static; display: flex; flex-direction: column; gap: 12px; }
  .case1-wrap img { position: static !important; width: 100% !important; height: auto !important; left: auto !important; top: auto !important; object-fit: contain; }
  .case1-text { position: static; width: 100%; }
}

/* ========== 表单提交弹窗 ========== */
.form-toast {
  position: fixed; top: 30px; left: 50%; transform: translateX(-50%) translateY(-20px);
  z-index: 9999; opacity: 0; visibility: hidden; transition: all .3s ease;
}
.form-toast.show { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.form-toast-inner {
  background: #2b2b2b; color: #fff; padding: 14px 24px; border-radius: 6px;
  font-size: 14px; display: flex; align-items: center; gap: 16px;
  box-shadow: 0 6px 24px rgba(0,0,0,.2); min-width: 260px;
}
.form-toast.err .form-toast-inner { background: #c0392b; }
.form-toast-close {
  background: none; border: none; color: rgba(255,255,255,.6);
  font-size: 20px; cursor: pointer; padding: 0; line-height: 1;
}
.form-toast-close:hover { color: #fff; }

/* ========== 版块滚动入场动画 ========== */
.reveal { opacity: 0; transform: translateY(36px); transition: opacity .8s ease, transform .8s cubic-bezier(.22,.61,.36,1); }
.reveal-in { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
}

/* ========== 笔记本适配（≤1600px）：8项导航防重叠 ========== */
@media (max-width: 1600px) {
  .header-inner { padding: 0 2.5vw; }
  .main-nav > ul { gap: 20px; }
  .main-nav ul li a { font-size: 13px; }
  .header-tel { font-size: 15px; letter-spacing: 0; }
}

/* ========== 小屏笔记本（≤1280px）：进一步收紧 ========== */
@media (max-width: 1280px) {
  .header-inner { padding: 0 2vw; }
  .main-nav > ul { gap: 13px; }
  .main-nav ul li a { font-size: 12px; }
  .logo img { height: 34px; }
  .header-tel { font-size: 13px; }
  .side-tool { right: 8px; }
  .tool-item { width: 56px; height: 64px; font-size: 11px; }
}

/* ========== 平板适配（≤1100px）：vw 字号兜底 + 网格减列 ========== */
@media (max-width: 1100px) {
  /* 关于页 vw 小字号兜底为 px，任何宽度都可读 */
  .about-intro-title { font-size: 32px; }
  .about-concept { padding: 5vw 6vw 7vw; }
  .about-concept-title { font-size: 20px; }
  .about-concept-title::after { margin-top: 6px; }
  .about-concept-subtitle { font-size: 13px; }
  .about-concept-item img { width: 40px; height: 40px; margin-bottom: 12px; }
  .about-concept-item h3 { font-size: 16px; margin-bottom: 10px; }
  .about-concept-item p { font-size: 12.5px; line-height: 2.1; }
  .about-service { padding: 5vw 8vw 7vw; }
  .about-service-title { font-size: 20px; }
  .about-service-title::after { margin-top: 6px; }
  .about-service-subtitle { font-size: 13px; }
  .about-service-grid { grid-template-columns: repeat(2, 1fr); gap: 4vw 3vw; }
  .about-service-item img { width: 30px; height: 30px; margin-bottom: 10px; }
  .about-service-item h3 { font-size: 14px; margin-bottom: 8px; }
  .about-service-item p { font-size: 12px; line-height: 1.9; }
  .about-founder { padding: 3vw 6vw 0; }
  .founder-title-en { font-size: 20px; }
  .founder-name { font-size: 24px; }
  .founder-titles li { font-size: 12px; }
  .founder-quote { font-size: 14px; }
  .founder-img-wrap { width: 45%; }
  /* 案例卡片字号兜底 + 网格减列 */
  .case-gallery-title { font-size: 20px; }
  .case-gallery-subtitle { font-size: 13px; }
  .case-grid { grid-template-columns: repeat(2, 1fr); gap: 3vw; }
  .case-card-title { font-size: 13px; }
  .case-count-badge { font-size: 12px; padding: 3px 8px; min-width: 34px; }
  .case-ico-gallery { width: 12px; height: 12px; }
  .case-images-title { font-size: 20px; }
  .case-images-subtitle { font-size: 13px; }
  .case-images-grid { grid-template-columns: repeat(2, 1fr); gap: 3vw; }
  .case-image-name { font-size: 12.5px; }
  .case-360-badge { font-size: 20px; }
  .case-360-badge::after { width: 28px; height: 28px; }
  /* 右侧工具栏二维码微缩 */
  .tool-tip-qr { width: 140px; }
  .tool-tip-qr img { width: 120px; height: 120px; }
}

/* ========== 手机端适配 ========== */
/* 汉堡按钮：桌面隐藏，手机显示 */
.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: none; border: none; cursor: pointer;
  justify-self: end;
  padding: 0;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px;
  background: #212121; border-radius: 1px;
  transition: transform .3s ease, opacity .3s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* 触屏设备：点击弹出工具栏提示（替代 hover） */
@media (hover: none) {
  .tool-item-has-tip.tip-open .tool-tip {
    transform: translate(0, -50%);
    opacity: 1; visibility: visible;
  }
}

@media (max-width: 1024px) {
  /* --- 顶部导航：收进汉堡菜单（平板+手机，任何宽度都不会重叠） --- */
  .header-inner { height: 64px; padding: 0 4vw; grid-template-columns: 1fr auto; }
  .logo img { height: 30px; }
  .header-tel { display: none; }
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed; top: 64px; left: 0; right: 0;
    background: #fff;
    box-shadow: 0 12px 32px rgba(0,0,0,.12);
    padding: 8px 0 14px;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
    z-index: 19;
    opacity: 0; visibility: hidden;
    transform: translateY(-12px);
    transition: opacity .28s ease, transform .28s ease, visibility .28s;
  }
  .main-nav.open { opacity: 1; visibility: visible; transform: translateY(0); }
  .main-nav > ul { flex-direction: column; gap: 0; }
  .main-nav ul li a { font-size: 15px; padding: 13px 0; }
  .main-nav ul li a::after { bottom: 5px; }

  /* --- FOUNDER 创始人：平板竖屏也堆叠避免重叠 --- */
  .about-founder-row { flex-direction: column; min-height: 0; }
  .about-founder-left { padding-left: 0; }
  .about-founder-right { padding: 5vw 0 0; position: static; }
  .founder-quote { position: static; width: 100%; margin: 0 0 4vw; }
  .founder-img-wrap { position: static; transform: none; width: 55%; margin: 0 auto; }
}

@media (max-width: 768px) {
  /* --- 右侧悬浮工具栏 --- */
  .side-tool { right: 6px; }
  .tool-item { width: 46px; height: 54px; }
  .tool-ico { width: 18px; height: 18px; }
  .tool-txt { font-size: 10px; }
  .tool-tip-qr { width: 122px; }
  .tool-tip-qr img { width: 110px; height: 110px; }
  .tool-tip-tel { font-size: 13px; }

  /* --- Hero 轮播 --- */
  .banner-text-img { left: 5%; height: 15%; }
  .banner-dots { bottom: 14px; }
  .banner-dots i { width: 20px; }

  /* --- 通用标题/按钮 --- */
  .sec-en { font-size: 20px; }
  .sec-sub { font-size: 13px; }
  .btn { height: 38px; line-height: 36px; padding: 0 22px; }

  /* --- ABOUT 文本 --- */
  .about { padding: 10vw 6vw; }
  .about .sec-title { margin-bottom: 24px; }
  .about-text { line-height: 2.1; }
  .about .btn-center { margin-top: 24px; }

  /* --- 设计理念（视频） --- */
  .philosophy { padding: 8vw 6vw; background-position: center top; }
  .philo-video { width: 100%; }
  .philo-video .play {
    width: 54px; height: 54px;
    top: 50%; transform: translate(-50%, -50%);
    opacity: 1;
  }
  .philo-video .play::after {
    border-left-width: 15px; border-top-width: 10px; border-bottom-width: 10px;
  }
  .philo-text { width: 100%; margin-top: 5vw; }

  /* --- 案例通用 --- */
  .case-band { padding: 8vw 5vw; }
  .case1-text .case-title, .case2-text .case-title, .case3-text .case-title { font-size: 15px; }
  .case1-text .spatial-en, .case1-text .spatial-dash,
  .case2-text .spatial-en, .case2-text .spatial-dash,
  .case3-text .spatial-en, .case3-text .spatial-dash { font-size: 15px; }

  /* --- BUSINESS / HOUSE 网格 --- */
  .business { padding: 0 5vw 6vw; }
  .biz-grid { grid-template-columns: 1fr; gap: 24px; }
  .biz-card { margin-bottom: 0; }
  .house { padding: 0 5vw 8vw; }
  .house-grid { grid-template-columns: 1fr; gap: 20px; }
  .house-item img { height: 56vw; }
  .house .btn-center { margin-top: 6vw; }

  /* --- 作品图集（DESIGN） --- */
  .case-gallery-section { padding: 10vw 5vw; }
  .case-gallery-header { margin-bottom: 8vw; }
  .case-gallery-title { font-size: 20px; }
  .case-gallery-title::after { margin-top: 6px; }
  .case-gallery-subtitle { font-size: 13px; }
  .case-grid { grid-template-columns: 1fr; gap: 6vw; }
  .case-card { padding: 4vw; }
  .case-card-title { font-size: 14px; margin-top: 12px; }
  .case-count-badge { font-size: 11px; padding: 3px 8px; min-width: 34px; gap: 4px; }
  .case-ico-gallery { width: 12px; height: 12px; }

  /* --- CASES 作品影像 --- */
  .case-images-section { padding: 10vw 5vw 12vw; }
  .case-images-header { margin-bottom: 8vw; }
  .case-images-title { font-size: 20px; }
  .case-images-title::after { margin-top: 6px; }
  .case-images-subtitle { font-size: 13px; }
  .case-images-grid { grid-template-columns: 1fr; gap: 4vw; }
  .case-image-name { font-size: 13px; }
  .case-image-overlay { height: 24%; }
  /* 手机端：取消 hover 效果，遮罩常驻显示 */
  .case-image-card:hover img { transform: none; }
  .case-image-card:hover .case-image-video { transform: none; }
  .case-image-card.no-name:hover .case-image-overlay { height: 0; }
  .case-image-card:hover .case-image-overlay { height: 24%; background: rgba(0,0,0,0.55); }
  .case-image-card:hover .case-image-search { opacity: 0; }
  .case-image-card:hover .case-image-name { position: static; font-size: 13px; }
  .case-360-badge { font-size: 22px; top: 10px; right: 10px; }
  .case-360-badge::after { width: 32px; height: 32px; }

  /* --- 灯箱相册 --- */
  .lightbox-close { top: 12px; right: 14px; font-size: 28px; }
  .lightbox-stage { max-width: 92vw; }
  .lightbox-nav { width: 40px; height: 40px; font-size: 22px; }
  .lightbox-prev { left: 6px; }
  .lightbox-next { right: 6px; }
  .lightbox-play-btn { width: 56px; height: 56px; }
  .lightbox-play-triangle { border-width: 12px 0 12px 20px; margin-left: 4px; }
  .lightbox-caption { font-size: 13px; margin-top: 12px; }
  .lightbox-thumbs { max-width: 92vw; margin-top: 12px; gap: 8px; }
  .lightbox-thumb { width: 18vw; height: 13.5vw; }

  /* --- CTA / 底部联系表单 --- */
  .cta-slide { padding: 5vw 6vw 3.5vw; }
  .cta-slide h2 { font-size: 20px; }
  .contact-left { padding: 10vw 6vw; }
  .contact-right { padding: 10vw 6vw; }
  .contact-left h3, .contact-right h3 { font-size: 24px; margin-bottom: 20px; }
  .ci-l { flex: 0 0 68px; }
  .qr-row { gap: 20px; }
  .qr-row img { width: 110px; height: 110px; }
  .form-submit .btn { padding: 14px 44px; }

  /* --- 页脚 --- */
  .site-footer { padding: 36px 5vw 18px; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 26px 18px; }
  .footer-brand strong { font-size: 16px; }
  .footer-bottom { flex-direction: column; gap: 6px; align-items: flex-start; }

  /* --- 关于页：左图右文 --- */
  .about-intro-row { flex-direction: column; }
  .about-intro-title { font-size: 26px; }
  .about-intro-right { padding: 9vw 6vw; }

  /* --- CONCEPT 三栏改单栏 --- */
  .about-concept { padding: 10vw 6vw 12vw; }
  .about-concept-header { margin-bottom: 8vw; }
  .about-concept-title { font-size: 20px; }
  .about-concept-title::after { margin-top: 6px; }
  .about-concept-subtitle { font-size: 13px; }
  .about-concept-grid { grid-template-columns: 1fr; gap: 8vw; }
  .about-concept-item img { width: 44px; height: 44px; margin-bottom: 14px; }
  .about-concept-item h3 { font-size: 17px; margin-bottom: 10px; }
  .about-concept-item p { font-size: 13px; line-height: 2.1; }

  /* --- FOUNDER 创始人 --- */
  .about-founder { padding: 10vw 6vw 0; }
  .about-founder-row { flex-direction: column; min-height: 0; }
  .about-founder-left { flex: auto; padding-left: 0; }
  .founder-title-en { font-size: 20px; margin-bottom: 10px; }
  .founder-name { font-size: 26px; margin-bottom: 16px; }
  .founder-titles li { font-size: 12.5px; }
  .about-founder-right { flex: auto; padding: 6vw 0 0; position: static; }
  .founder-quote { font-size: 14px; margin: 0 0 5vw; width: 100%; line-height: 2.2; position: static; }
  .founder-img-wrap { position: static; transform: none; width: 70%; margin: 0 auto; }

  /* --- SERVICE 四栏改两栏 --- */
  .about-service { padding: 10vw 6vw 12vw; }
  .about-service-header { margin-bottom: 8vw; }
  .about-service-title { font-size: 20px; }
  .about-service-title::after { margin-top: 6px; }
  .about-service-subtitle { font-size: 13px; }
  .about-service-grid { grid-template-columns: 1fr 1fr; gap: 8vw 6vw; }
  .about-service-item img { width: 34px; height: 34px; margin-bottom: 12px; }
  .about-service-item h3 { font-size: 15px; margin-bottom: 8px; }
  .about-service-item p { font-size: 12px; line-height: 1.9; }

  /* --- 标题带 / 博客 --- */
  .sec-title-band { padding: 0 6vw 6vw; }
  .sec-title-plain { padding: 4vw 0 8vw; }
  .blog-page { padding: 0 5vw 8vw; }
  .blog-cats { gap: 10px; padding-bottom: 4vw; }
  .blog-cat { font-size: 12px; padding: 4px 13px; }
  .blog-cat span { font-size: 10px; margin-left: 3px; }
  .blog-detail { padding: 0 5vw 10vw; }
  .blog-item-title { font-size: 16px; }
}

/* 超窄屏（≤400px）：页脚改单列 */
@media (max-width: 400px) {
  .footer-inner { grid-template-columns: 1fr; }
  .qr-row { flex-wrap: wrap; }
}

/* ========== 手机底部快捷导航 ========== */
.m-tabbar {
  display: none;
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
  height: 60px;
  background: #fff;
  box-shadow: 0 -2px 12px rgba(0,0,0,.08);
  border-radius: 14px 14px 0 0;
}
.m-tabbar-item {
  flex: 1;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  color: #666; text-decoration: none; gap: 3px;
  transition: color .2s;
}
.m-tabbar-item:active { color: #c9a96e; }
.m-tabbar-ico { display: flex; align-items: center; justify-content: center; }
.m-tabbar-ico img { width: 26px; height: 26px; object-fit: contain; display: block; }
.m-tabbar-txt { font-size: 12px; letter-spacing: .5px; }
.m-tabbar-item:active .m-tabbar-ico img { opacity: .7; }

/* 电话弹层 */
.m-tel-mask {
  display: none; position: fixed; inset: 0; z-index: 9999;
  background: rgba(0,0,0,.6);
  align-items: center; justify-content: center;
}
.m-tel-mask.show { display: flex; }
.m-tel-box {
  background: #fff; border-radius: 14px; padding: 28px 26px 20px;
  width: 300px; text-align: center;
}
.m-tel-label { font-size: 14px; color: #999; margin: 0 0 10px; letter-spacing: 1px; }
.m-tel-num {
  display: block; font-size: 28px; font-weight: 600; color: #c9a96e;
  letter-spacing: 2px; text-decoration: none; margin-bottom: 10px;
}
.m-tel-num:active { color: #b89560; }
.m-tel-tip { font-size: 12px; color: #999; margin: 0 0 16px; }
.m-tel-btn {
  width: 100%; height: 44px; line-height: 44px; border-radius: 8px;
  font-size: 14px; text-align: center; text-decoration: none; border: none; cursor: pointer;
  margin-bottom: 10px;
}
.m-tel-btn-copy { background: #2b2b2b; color: #fff; }
.m-tel-btn-copy:active { background: #444; }
.m-tel-close {
  width: 100%; height: 38px; line-height: 38px;
  border: none; border-radius: 6px;
  background: #f0f0f0; color: #666; font-size: 14px; cursor: pointer;
}
.m-tel-close:active { background: #e0e0e0; }

/* 微信二维码弹层 */
.m-wx-mask {
  display: none; position: fixed; inset: 0; z-index: 9998;
  background: rgba(0,0,0,.6);
  align-items: center; justify-content: center;
}
.m-wx-mask.show { display: flex; }
.m-wx-box {
  background: #fff; border-radius: 12px; padding: 24px 22px 18px;
  width: 280px; text-align: center;
}
.m-wx-box img { width: 200px; height: 200px; margin: 0 auto 14px; object-fit: contain; display: block; }
.m-wx-box p { font-size: 13px; color: #555; margin: 0 0 14px; line-height: 1.6; }
.m-wx-close {
  width: 100%; height: 38px; line-height: 38px;
  border: none; border-radius: 6px;
  background: #2b2b2b; color: #fff; font-size: 14px; cursor: pointer;
}
.m-wx-close:active { background: #444; }

@media (max-width: 768px) {
  .m-tabbar { display: flex; }
  /* 给底部固定栏留出空间 */
  body { padding-bottom: 60px; }
  /* 右侧悬浮工具栏底部留出空间 */
  .side-tool { top: auto; bottom: 76px; transform: none; }
  /* 页脚底部留出空间 */
  .site-footer { padding-bottom: 78px; }
}