/* ==========================================================================
   幕百金属 · 站点样式（单文件 / 无框架 / 无外部字体请求）
   ========================================================================== */

/* ------------------------------------------------------------------ 基础 */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:#fbfaf8;color:#1b1f26;
  font:16px/1.75 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 22px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;background:#fff;padding:10px 16px;z-index:99;border-radius:6px}
/* 视觉隐藏但保留在无障碍树与 HTML 结构里：给搜索引擎和读屏用的标题/说明 */
.vh{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;
    clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0}
::selection{background:#f0dcc2}

/* 联系方式 + 表单两栏：窄屏必须落单列，否则电话会被挤断行 */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px}

/* ------------------------------------------------------------------ 页头 */
.hd{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid #eceae5}
.hd-in{display:flex;align-items:center;gap:26px;height:72px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-logo{display:block;width:auto;height:40px;flex:0 0 auto}
.brand-txt{display:flex;flex-direction:column;line-height:1.25}
.brand-txt b{font-size:18px;letter-spacing:.04em}
.brand-txt i{font-style:normal;font-size:11px;color:#8a8f98;letter-spacing:.06em}
.nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav>a,.nav-drop>a{display:block;padding:9px 13px;font-size:15px;color:#39404b;border-radius:6px;white-space:nowrap}
.nav>a:hover,.nav-drop>a:hover{background:#f3f1ec;color:#15181d}
.nav>a[aria-current],.nav-drop>a[aria-current]{color:#a4611c;font-weight:600}
.nav-drop{position:relative}
.nav-sub{
  position:absolute;top:calc(100% + 6px);left:0;min-width:212px;background:#fff;
  border:1px solid #e8e5df;border-radius:10px;box-shadow:0 14px 34px rgba(20,24,30,.09);
  padding:8px;opacity:0;visibility:hidden;transform:translateY(-4px);transition:.16s ease;
}
.nav-drop:hover .nav-sub,.nav-drop:focus-within .nav-sub{opacity:1;visibility:visible;transform:none}
.nav-sub a{display:flex;justify-content:space-between;align-items:center;padding:9px 12px;border-radius:6px;font-size:15px}
.nav-sub a:hover{background:#f6f3ee}
.nav-sub em{font-style:normal;font-size:12px;color:#9aa0a8}
.hd-tel{margin-left:6px;display:flex;flex-direction:column;align-items:flex-end;line-height:1.2;padding:5px 0 5px 18px;border-left:1px solid #eceae5}
.hd-tel span{font-size:11px;color:#8a8f98;letter-spacing:.08em}
.hd-tel b{font-size:18px;color:#a4611c;letter-spacing:.01em}
/* 复选框视觉隐藏但保留可聚焦：display:none 在部分移动浏览器里 label 激活不可靠 */
.navtog{position:absolute;width:1px;height:1px;margin:0;opacity:0;pointer-events:none;clip-path:inset(50%)}
.navbtn{display:none}
.navtog:focus-visible~.navbtn{outline:2px solid #a4611c;outline-offset:2px;border-radius:8px}

/* ------------------------------------------------------------------ 首页英雄区 */
/* 头图区固定 1600:800（2:1）比例，宽度决定高度；
   460px 下限保证窄屏内容不溢出，820px 上限防止超宽屏拉得过长 */
.hero{position:relative;aspect-ratio:1600/800;min-height:460px;max-height:820px;display:flex;align-items:center;overflow:hidden;background:#1a1e24}
.hero-bg{position:absolute;inset:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;object-position:var(--hero-pos,50% 50%)}
/* A 方案：仅文字一侧一层轻渐变（最重 60% → 右侧全透明），图片主体不受影响 */
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(14,17,21,.60) 0%,rgba(14,17,21,.42) 40%,rgba(14,17,21,.12) 66%,rgba(14,17,21,0) 80%)}
.hero-in{position:relative;padding-top:74px;padding-bottom:66px}
.hero-tag{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.14em;color:#d8bb8c;border:1px solid rgba(216,187,140,.36);border-radius:999px;padding:5px 14px;margin-bottom:22px;text-shadow:0 1px 10px rgba(10,12,16,.55)}
.hero h1{font-size:clamp(28px,4.4vw,50px);color:#fff;letter-spacing:-.02em;line-height:1.16;max-width:19em;text-shadow:0 2px 18px rgba(10,12,16,.5)}
.hero h1 em{font-style:normal;color:#e0b478}
.hero-sub{margin-top:18px;color:#e6e8ec;font-size:clamp(14px,1.4vw,17px);max-width:44em;text-shadow:0 1px 10px rgba(10,12,16,.55)}
.hero-act{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-stats{display:flex;flex-wrap:wrap;gap:34px;margin-top:44px;padding-top:26px;border-top:1px solid rgba(255,255,255,.35)}
.hero-stats div{color:#fff}
.hero-stats b{display:block;font-size:26px;letter-spacing:-.01em;text-shadow:0 1px 10px rgba(10,12,16,.55)}
.hero-stats span{font-size:12.5px;color:#d3d7dd;letter-spacing:.04em;text-shadow:0 1px 8px rgba(10,12,16,.55)}

/* ------------------------------------------------------------------ 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:8px;font-size:15px;font-weight:600;transition:.18s ease;border:1px solid transparent}
.btn-pri{background:#a4611c;color:#fff}
.btn-pri:hover{background:#8c5015}
.btn-gho{border-color:rgba(255,255,255,.34);color:#fff}
.btn-gho:hover{background:rgba(255,255,255,.1)}
/* 首页大图上的描边按钮：垫一层半透明深底，避免在亮色图片上看不见 */
.hero .btn-gho{border-color:rgba(255,255,255,.55);background:rgba(20,24,29,.38);backdrop-filter:blur(2px)}
.hero .btn-gho:hover{background:rgba(20,24,29,.55)}
.btn-line{border-color:#d8d4cc;color:#2a2f37;background:#fff}
.btn-line:hover{border-color:#a4611c;color:#a4611c}

/* ------------------------------------------------------------------ 区块 */
.sec{padding:76px 0}
.sec-alt{background:#fff;border-top:1px solid #efece7;border-bottom:1px solid #efece7}
.sec-hd{position:relative;margin-bottom:38px;max-width:760px}
.eyebrow{font-size:12px;letter-spacing:.18em;color:#a4611c;font-weight:600;margin-bottom:12px;text-transform:uppercase}
.sec-hd h2{font-size:clamp(23px,2.8vw,33px);letter-spacing:-.02em}
.sec-lead{margin-top:14px;color:#5d646e;font-size:15.5px}
.sec-more{position:absolute;right:0;bottom:6px;font-size:14px;color:#a4611c}
.sec-more:hover{text-decoration:underline}
/* 「全部 →」是绝对定位在右下角，长引言会压到它身上，这里给它让出一块 */
.sec-hd.has-more .sec-lead{padding-right:96px}

/* 信任条 */
.trust{background:#15181d;color:#fff}
.trust-in{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:#2a2f37}
.trust-in>div{background:#15181d;padding:26px 24px}
.trust b{display:block;font-size:15px;margin-bottom:5px}
.trust span{font-size:13px;color:#9aa0a8;line-height:1.6}

/* 分类卡 */
.cats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
/* 首页产品分类分组：分类名 + 全部款数，下面接 12 个产品卡（4/2 列） */
.catsub{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:34px 0 14px;scroll-margin-top:76px}
.catsub:first-of-type{margin-top:22px}
/* 品类标签行：替代原区块大标题，点击锚点跳到对应分组 */
.ctags{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0 4px}
.ctags a{display:inline-flex;align-items:center;height:35px;padding:0 17px;border:1px solid #e2ded6;border-radius:999px;font-size:14px;color:#3a3f47;background:#fff;text-decoration:none;transition:.15s ease}
.ctags a:hover{border-color:#a4611c;color:#a4611c}
.catsub h3{font-size:19px;letter-spacing:-.01em}
.catsub h3 a{color:inherit;text-decoration:none}
.catsub h3 a:hover{color:#a4611c}
.catsub-more{flex:0 0 auto;font-size:13.5px;color:#a4611c;text-decoration:none;white-space:nowrap}
.catsub-more:hover{text-decoration:underline}
.catcard{position:relative;display:block;border-radius:12px;overflow:hidden;background:#22262d;min-height:280px;isolation:isolate}
.catcard img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.62;transition:transform .5s ease,opacity .3s}
.catcard:hover img{transform:scale(1.045);opacity:.72}
.catcard::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(12,15,19,.15) 30%,rgba(12,15,19,.88) 100%);z-index:1}
.catcard-bd{position:relative;z-index:2;padding:24px;height:100%;display:flex;flex-direction:column;justify-content:flex-end;min-height:280px;color:#fff}
.catcard-bd h3{font-size:20px}
.catcard-bd p{margin-top:8px;font-size:13.5px;color:#cfd3d9;line-height:1.65}
.catcard-bd i{font-style:normal;margin-top:14px;font-size:13px;color:#e0b478}

/* 产品卡 */
.pgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.pcard{background:#fff;border:1px solid #eae7e1;border-radius:11px;overflow:hidden;display:flex;flex-direction:column;transition:.2s ease}
.pcard:hover{border-color:#d6cec1;box-shadow:0 12px 28px rgba(20,24,30,.07);transform:translateY(-2px)}
.pcard-img{aspect-ratio:1/1;background:#f2f0ec;overflow:hidden;position:relative}
.pcard-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.pcard:hover .pcard-img img{transform:scale(1.04)}
.pcard-noimg{position:absolute;inset:0;display:grid;place-items:center;color:#b3b7bd;font-size:13px}
.pcard-bd{padding:16px 16px 18px;display:flex;flex-direction:column;flex:1}
.pcard-bd h3{font-size:15.5px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pcard-bd p{margin-top:8px;font-size:13px;color:#757b85;line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* 资讯卡 */
.ngrid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.ncard{background:#fff;border:1px solid #eae7e1;border-radius:11px;overflow:hidden;transition:.2s ease;display:flex;flex-direction:column}
.ncard:hover{border-color:#d6cec1;box-shadow:0 12px 28px rgba(20,24,30,.07)}
.ncard-img{aspect-ratio:16/9;background:#f2f0ec;overflow:hidden}
.ncard-img img{width:100%;height:100%;object-fit:cover}
.ncard-bd{padding:18px}
.ncard-date{display:block;margin-bottom:7px;font-size:11.5px;line-height:1;letter-spacing:.05em;color:#a4611c;font-variant-numeric:tabular-nums;opacity:.8}
.ncard-bd h3{font-size:15.5px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ncard-bd p{margin-top:9px;font-size:13px;color:#787e88;line-height:1.65;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* 资讯列表（/news/）：横向行，缩略图固定在左，文字占右侧剩余宽度 */
.nlist{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.nrow{display:flex;gap:15px;padding:13px;background:#fff;border:1px solid #eae7e1;border-radius:11px;transition:.2s ease}
.nrow:hover{border-color:#d6cec1;box-shadow:0 12px 28px rgba(20,24,30,.07)}
.nrow-img{flex:0 0 150px;width:150px;align-self:stretch;min-height:96px;border-radius:8px;overflow:hidden;background:#f2f0ec;position:relative}
.nrow-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.nrow:hover .nrow-img img{transform:scale(1.04)}
.nrow-noimg{position:absolute;inset:0;display:grid;place-items:center;color:#b3b7bd;font-size:12.5px}
.nrow-bd{display:flex;flex-direction:column;min-width:0;flex:1;padding-right:2px}
.nrow-date{display:block;margin-bottom:6px;font-size:11.5px;line-height:1;letter-spacing:.05em;color:#a4611c;font-variant-numeric:tabular-nums;opacity:.8}
.nrow-tt{font-size:15.5px;font-weight:700;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.nrow-desc{margin-top:7px;font-style:normal;font-size:12.8px;color:#787e88;line-height:1.62;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:#eae7e1;border:1px solid #eae7e1;border-radius:12px;overflow:hidden}
.steps>div{background:#fff;padding:26px 24px}
.steps b{display:block;font-size:13px;color:#a4611c;letter-spacing:.1em;margin-bottom:10px}
.steps-3{grid-template-columns:repeat(3,1fr)}
.steps h3{font-size:16px;margin-bottom:8px}
.steps p{font-size:13.5px;color:#6d737d;line-height:1.7}
/* 「图文都要」的卡片（如关于页的三地公司 / 交付三段）：
   .steps 默认在手机上会压成两列并隐藏说明文字，这里单独放行 */
@media (max-width:900px){
  .steps.steps-info{grid-template-columns:1fr 1fr}
  .steps.steps-info>div:nth-child(3){grid-column:1 / -1}
}
@media (max-width:640px){
  .steps.steps-info{grid-template-columns:1fr}
  .steps.steps-info>div:nth-child(3){grid-column:auto}
  .steps.steps-info>div{padding:18px}
  .steps.steps-info p{display:block;font-size:13px}
  .steps.steps-info h3{font-size:15.5px;margin-bottom:6px}
  .steps.steps-info b{margin-bottom:6px;font-size:12px}
}

/* 关于我们：发展历程时间线（放在 .prose 里，需压掉 .prose 的列表默认样式） */
.prose .tl{list-style:none;margin:8px 0 0;padding:0}
.prose .tl li{position:relative;margin:0 0 0 6px;padding:0 0 26px 26px;border-left:1px solid #e6e2db}
.prose .tl li:last-child{border-left-color:transparent;padding-bottom:0}
.prose .tl li::before{content:"";position:absolute;left:-5px;top:7px;width:9px;height:9px;border-radius:50%;background:#a4611c;box-shadow:0 0 0 3px #fff}
.tl b{display:block;font-size:12.5px;letter-spacing:.12em;color:#a4611c}
.prose .tl h3{font-size:17px;margin:5px 0 6px;padding-left:0}
.prose .tl h3::before{display:none}
.prose .tl p{font-size:14.8px;color:#4c525b;line-height:1.8;margin:0}

/* 关于我们：厂区横幅配图 */
.about-band{margin:0;border-radius:14px;overflow:hidden;border:1px solid #eae7e1;background:#f2efe9}
.about-band img{display:block;width:100%;height:auto}
.about-band figcaption{padding:12px 18px;font-size:13px;color:#6d737d;background:#fff;border-top:1px solid #f0ece6}

/* CTA 条 */
.cta{background:#1c2128;color:#fff}
.cta-in{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:52px 22px;flex-wrap:wrap}
.cta h2{font-size:clamp(20px,2.4vw,27px)}
.cta p{margin-top:10px;color:#a9aeb6;font-size:14.5px}
.cta-act{display:flex;gap:12px;flex-wrap:wrap}

/* ------------------------------------------------------------------ 页脚 */
.ft{background:#101317;color:#9ba1a9;font-size:14px}
.ft-in{display:grid;grid-template-columns:1.5fr 1fr 1.3fr 1fr;gap:28px;padding:46px 22px 32px}
.ft-col > b{display:block;color:#fff;font-size:14.5px;margin-bottom:12px}
.ft-col a{display:block;padding:4px 0;color:#9ba1a9;transition:.15s}
.ft-col a:hover{color:#e0b478}
.ft-logo{display:block;width:auto;height:46px;flex:0 0 auto}
/* 品牌区：logo 与字号并排，比原来"logo 单独一行 + 三行公司信息"矮一半 */
.ft-brand-hd{display:flex;align-items:center;gap:13px}
.ft-brand-tt b{display:block;margin-bottom:0;color:#fff;font-size:18px;line-height:1.3;letter-spacing:.02em}
.ft-brand-tt span{display:block;margin-top:2px;font-size:11.5px;line-height:1.4;color:#7d838c}
.ft-tagline{margin-top:13px;font-size:12.5px;line-height:1.7;color:#8b919a}
.ft-tel{margin-top:12px}
.ft-tel a{display:inline-flex;align-items:center;gap:7px;color:#e0b478;font-size:21px;font-weight:700;letter-spacing:.02em}
.ft-tel .ico{opacity:.85}
.ft-hours{margin-top:3px;font-size:12px;color:#6f757e}
.ft-bot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:16px 22px 0;border-top:1px solid #22272e;font-size:12.5px;color:#6f757e}
.ft-icp{display:flex;flex-wrap:wrap;gap:4px 18px;padding:9px 22px 24px;font-size:12.5px;line-height:1.7;color:#6f757e}
.ft-icp a{color:#6f757e;transition:.15s}
.ft-icp a:hover{color:#e0b478}

/* ------------------------------------------------------------------ 面包屑 */
.crumb{padding:16px 0 0;font-size:13px;color:#8a8f98}
.crumb ol{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.crumb li+li::before{content:"/";margin-right:6px;color:#c6c9ce}
.crumb a:hover{color:#a4611c}
.crumb [aria-current]{color:#5b616b}

/* ------------------------------------------------------------------ 列表页头 */
.phead{padding:26px 0 34px;border-bottom:1px solid #eceae5;background:#fff}
.phead h1{font-size:clamp(23px,3vw,34px);letter-spacing:-.02em}
.phead .lead{margin-top:14px;color:#5d646e;max-width:56em;font-size:15.5px}
.phead .meta{margin-top:16px;display:flex;gap:18px;flex-wrap:wrap;font-size:13px;color:#8a8f98}
.phead .meta b{color:#15181d;font-weight:600}
.phead .meta span{display:inline-flex;align-items:baseline;gap:5px}
/* 短视频列表：页头整块去掉（主标题用 .vh 隐藏），面包屑下面直接接筛选条 */
.sec.sec-tight{padding-top:26px}

/* ------------------------------------------------------------------ 详情页 */
/* 注意：这些类都挂在 .wrap 上，只能用 padding-top/bottom 的写法。
   一旦写成 padding:34px 0 70px 这种简写，会把 .wrap 的左右 22px 内边距清成 0，
   详情页正文、首页 hero 文案在移动端就会直接贴到屏幕边缘。 */
.detail{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:44px;padding-top:34px;padding-bottom:70px;align-items:start}
.dmain{min-width:0}
.dtitle{font-size:clamp(22px,2.6vw,31px);letter-spacing:-.02em}
.dbrief{margin-top:14px;color:#4e555f;font-size:15.5px;line-height:1.85}
.dhero{margin:26px 0 8px;border-radius:12px;overflow:hidden;background:#f2f0ec;border:1px solid #eae7e1}
.dhero img{width:100%}
.thumbs{display:grid;grid-template-columns:repeat(6,1fr);gap:9px;margin-top:10px}
.thumbs button{padding:0;border:1px solid #e8e5df;border-radius:7px;overflow:hidden;background:#fff;cursor:pointer}
.thumbs img{aspect-ratio:1;object-fit:cover;width:100%}

/* 正文排版 */
.prose{margin-top:34px;color:#2c323a;font-size:15.8px;line-height:1.95}
.prose h2,.prose h3{margin:34px 0 12px;font-size:18px;position:relative;padding-left:14px;line-height:1.5}
.prose h2::before,.prose h3::before{content:"";position:absolute;left:0;top:.34em;width:3px;height:1.05em;background:#a4611c;border-radius:2px}
.prose h4{margin:24px 0 10px;font-size:16px}
.prose p{margin:13px 0}
.prose img{border-radius:9px;margin:18px auto;border:1px solid #eeeae4}
.prose a{color:#a4611c;text-decoration:underline;text-underline-offset:3px}
.prose strong{color:#15181d}
.prose ul,.prose ol{margin:14px 0;padding-left:1.3em;list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin:7px 0}
.prose table{width:100%;border-collapse:collapse;margin:20px 0;font-size:14.5px}
.prose th,.prose td{border:1px solid #e8e5df;padding:10px 12px;text-align:left}
.prose th{background:#f7f5f1;font-weight:600}
.prose blockquote{margin:20px 0;padding:12px 18px;border-left:3px solid #d9d3c8;background:#f9f7f3;color:#4e555f}

/* 侧栏 */
.dside{position:sticky;top:92px;display:flex;flex-direction:column;gap:18px}
.side-card{background:#fff;border:1px solid #eae7e1;border-radius:12px;padding:22px}
.side-card h3{font-size:15px;margin-bottom:14px}
.side-tel{display:block;font-size:23px;font-weight:700;color:#a4611c;letter-spacing:.01em;margin-bottom:4px}
.side-note{font-size:12.5px;color:#8a8f98;line-height:1.7}
.side-list a{display:flex;gap:11px;padding:10px 0;border-top:1px solid #f1eee9;align-items:center}
.side-list a:first-of-type{border-top:0}
.side-list img{width:58px;height:44px;object-fit:cover;border-radius:6px;flex:0 0 auto}
.side-list span{font-size:13.5px;line-height:1.5;color:#3b414a}
.side-list a:hover span{color:#a4611c}

/* 分页 */
.pager{display:flex;gap:8px;justify-content:center;margin:44px 0 0;flex-wrap:wrap}
.pager a,.pager span{min-width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;border:1px solid #e5e2dc;border-radius:8px;font-size:14px;background:#fff;padding:0 12px}
.pager a:hover{border-color:#a4611c;color:#a4611c}
.pager [aria-current]{background:#a4611c;border-color:#a4611c;color:#fff}

/* 表单 */
.form{display:grid;gap:16px;max-width:560px}
.field label{display:block;font-size:13.5px;color:#4e555f;margin-bottom:6px}
.field input,.field textarea{width:100%;padding:12px 14px;border:1px solid #ddd9d2;border-radius:8px;font:inherit;font-size:15px;background:#fff}
.field input:focus,.field textarea:focus{outline:none;border-color:#a4611c;box-shadow:0 0 0 3px rgba(164,97,28,.1)}
.field textarea{min-height:130px;resize:vertical}

/* ------------------------------------------------------------------ 响应式 */
@media (max-width:1080px){
  .pgrid{grid-template-columns:repeat(3,1fr)}
  .detail{grid-template-columns:1fr;gap:30px}
  .dside{position:static;flex-direction:row;flex-wrap:wrap}
  .dside>*{flex:1 1 280px}
}
/* 901–1080 这段导航 + 电话塞不进一行（会横向溢出约 20px）：
   收紧导航内边距、收起副标题、电话降一号。手机端（≤900）不动，副标题照常显示 */
@media (min-width:901px) and (max-width:1080px){
  .hd-in{gap:18px}
  .brand-txt i{display:none}
  .nav>a,.nav-drop>a{padding:9px 9px;font-size:14.5px}
  .hd-tel{padding-left:12px;margin-left:0}
  .hd-tel b{font-size:16px}
  /* 首屏按 2:1 排，宽 901–920 时 min-height:460 会把宽度"倒推"成 920，撑出横向滚动条 */
  .hero{min-height:0}
}
@media (max-width:900px){
  .hd-in{height:62px;gap:12px}
  .nav,.hd-tel{display:none}
  /* 注意：.hd 上有 backdrop-filter，它会成为 fixed 后代的包含块。
     若这里用 position:fixed + top:62px/bottom:0，菜单会被锁在 63px 高的头部里、
     高度塌成 0，移动端整块导航点不到。因此改为相对头部做绝对定位并显式给高度。 */
  .navtog:checked~.nav{
    display:flex;position:absolute;left:0;right:0;top:100%;bottom:auto;background:#fff;
    height:calc(100vh - 63px);height:calc(100dvh - 63px);
    flex-direction:column;align-items:stretch;padding:16px 20px 40px;gap:2px;
    overflow-y:auto;-webkit-overflow-scrolling:touch;margin:0;
    box-shadow:0 22px 48px -24px rgba(20,24,32,.32);
  }
  /* 菜单展开时锁住背景滚动（:has 不支持的浏览器自动忽略，无副作用） */
  html:has(.navtog:checked){overflow:hidden}
  .navtog:checked~.nav>a{padding:15px 6px;border-bottom:1px solid #f0ede8;font-size:17px}
  .navtog:checked~.nav .nav-sub{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;padding:0 0 8px 14px;background:transparent}
  .navtog:checked~.nav .nav-drop>a{padding:15px 6px;border-bottom:1px solid #f0ede8;font-size:17px;font-weight:600}
  .navbtn{display:flex;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;margin-left:auto;cursor:pointer}
  .navbtn span{display:block;height:2px;background:#262b33;border-radius:2px;transition:.2s}
  .cats,.ngrid{grid-template-columns:1fr 1fr}
  .nlist{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr;gap:36px}
  .trust-in{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  /* 平板：品牌区整行，下面三列链接等宽，避免品牌独占一格留下空洞 */
  .ft-in{grid-template-columns:repeat(3,1fr);gap:24px 22px;padding:38px 22px 28px}
  .ft-brand{grid-column:1 / -1}
  .ft-col > b{font-size:13.5px;margin-bottom:9px}
  .ft-col a{font-size:13.5px;padding:3px 0;line-height:1.6}
  .sec{padding:56px 0}
  .sec.sec-tight{padding-top:22px}
}
@media (max-width:640px){
  body{font-size:15.5px}
  .wrap{padding:0 16px}
  /* 手机屏竖向放不下 2:1（390px 宽只有 195px 高），改回内容撑高，
     但收紧各段间距让首屏尽量扁一些，接近横幅观感 */
  .hero{aspect-ratio:auto;min-height:0}
  .hero-in{padding-top:48px;padding-bottom:38px}
  .hero-tag{margin-bottom:14px}
  .hero-sub{margin-top:12px}
  .hero-act{margin-top:22px;justify-content:center}
  .hero-stats{gap:22px;margin-top:26px;padding-top:20px}
  .hero-stats b{font-size:21px}
  .pgrid,.ngrid{grid-template-columns:1fr 1fr}
  /* 资讯行在手机上收窄缩略图，把宽度让给标题 */
  .nlist{gap:10px}
  .nrow{gap:12px;padding:10px;border-radius:9px}
  .nrow-img{flex:0 0 104px;width:104px;min-height:74px;border-radius:6px}
  .nrow-tt{font-size:14.5px;line-height:1.45}
  .nrow-desc{margin-top:5px;font-size:12px;-webkit-line-clamp:2}
  .pgrid{gap:12px}
  .pcard-bd{padding:12px}
  .pcard-bd h3{font-size:14px}
  .pcard-bd p{display:none}
  /* 产品线大图卡压成紧凑行：小图 + 标题 + 款数，描述隐藏。
     竖排 3 张 280px 高的大图卡太占屏，压成 3 行省约 700px */
  .cats{grid-template-columns:1fr;gap:10px}
  .catcard{min-height:0;display:flex;align-items:center;overflow:hidden}
  .catcard img{position:static;width:64px;height:64px;flex:0 0 64px;object-fit:cover;opacity:1;transform:none}
  .catcard::after{display:none}
  .catcard-bd{min-height:0;padding:10px 14px;justify-content:center}
  .catcard-bd h3{font-size:15.5px}
  .catcard-bd p{display:none}
  .catcard-bd i{margin-top:3px;font-size:12.5px}
  /* 四步流程 2×2，只留步骤号和标题，说明隐藏，高度约砍半 */
  .steps{grid-template-columns:1fr 1fr}
  .steps>div{padding:12px 14px}
  .steps b{margin-bottom:4px;font-size:11.5px}
  .steps h3{font-size:14.5px;margin-bottom:0}
  .steps p{display:none}
  /* 关于页首屏数据：手机上排成 2×2，避免四个短句各自折行 */
  .phead .meta{display:grid;grid-template-columns:1fr 1fr;gap:9px 12px;font-size:12.5px}
  /* 小屏上「全部 →」不再浮在引言右侧，改成引言下方单独一行 */
  .sec-more{position:static;display:block;margin-top:12px}
  .sec-hd.has-more .sec-lead{padding-right:0}
  .thumbs{grid-template-columns:repeat(4,1fr)}
  .detail{padding-top:22px;padding-bottom:50px}
  .prose{font-size:15.2px;line-height:1.9}
  .cta-in{padding:40px 16px}
  /* ---------------- 手机页脚：压成"品牌 + 两列链接 + 备案"三段 ----------------
     原来 4 组链接各占一行、每组竖排 5–7 条，整块接近一整屏。
     现在品牌区收成一行，链接按 2 列排，热门产品（与产品分类重复度最高）在
     手机上隐藏（仍在 HTML 里，爬虫照常抓）。 */
  .ft-in{grid-template-columns:1fr 1fr;gap:20px 18px;padding:26px 16px 18px}
  .ft-brand{grid-column:1 / -1;padding-bottom:14px;border-bottom:1px solid #1c2128}
  .ft-brand-hd{gap:11px}
  .ft-logo{height:34px}
  .ft-brand-tt b{font-size:16.5px}
  .ft-tagline,.ft-col-hot{display:none}
  .ft-tel{margin-top:10px}
  .ft-tel a{font-size:20px}
  .ft-col > b{font-size:13px;margin-bottom:6px}
  .ft-col a{font-size:13px;padding:2px 0;line-height:1.5}
  .ft-bot{flex-direction:column;gap:3px;padding:14px 16px 0;font-size:11.5px}
  .ft-icp{padding:8px 16px 20px;font-size:11.5px;gap:2px 14px}
}
@media (max-width:420px){
  /* 产品列表在小屏也保持两列：单列时空出来的横向空间被白白浪费，
     而产品名两行、卡片窄一点反而更好扫。文字与内边距相应收紧。 */
  .pgrid{grid-template-columns:1fr 1fr;gap:10px}
  .pcard-bd{padding:10px 10px 12px}
  .pcard-bd h3{font-size:13px;line-height:1.45}
  .ngrid{grid-template-columns:1fr}
  .trust-in{grid-template-columns:1fr}
}

/* ==========================================================================
   短视频栏目（/video/ 竖屏连续流 + 列表 + 详情）
   ========================================================================== */

/* --------------------------------------------------------------- 竖屏信息流 */
body.feedpage{overflow:hidden;background:#0b0d10;color:#fff}
.feed{position:fixed;inset:0;height:100vh;height:100dvh;background:#0b0d10;overflow:hidden}
.feed-bar{
  position:absolute;left:0;right:0;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding:14px 18px;color:#fff;
  background:linear-gradient(180deg,rgba(0,0,0,.55),rgba(0,0,0,0));
}
.feed-brand{display:inline-flex;align-items:center;gap:9px;font-size:14.5px;font-weight:600;letter-spacing:.04em;color:#fff;flex:0 0 auto;white-space:nowrap}
.feed-brand img{display:block;width:auto;height:26px}
.feed-tools{display:flex;gap:8px;align-items:center;min-width:0;overflow:hidden}
.feed-chip{
  display:inline-flex;align-items:center;gap:5px;padding:6px 12px;border-radius:999px;font-size:12.5px;color:#fff;
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.07);backdrop-filter:blur(8px);
}
.feed-chip:hover{background:rgba(255,255,255,.16)}
.feed-chip .ico{vertical-align:-2px}

.feed-track{
  height:100%;overflow-y:auto;overflow-x:hidden;
  scroll-snap-type:y mandatory;scroll-behavior:smooth;
  -ms-overflow-style:none;scrollbar-width:none;
}
.feed-track::-webkit-scrollbar{display:none}

.vs{
  height:100%;scroll-snap-align:start;scroll-snap-stop:always;
  display:flex;align-items:center;justify-content:center;position:relative;
}
.vs-frame{
  position:relative;height:100%;width:100%;max-width:430px;overflow:hidden;background:#111;
  isolation:isolate;
}
.vs-bg{position:absolute;inset:-40px;background-size:cover;background-position:center;filter:blur(46px) brightness(.42) saturate(1.1);transform:scale(1.16);z-index:0}
.cover-bg{opacity:.72;filter:blur(20px) brightness(.5) saturate(1.2)}
.vs-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:1;background:#111;display:block}
.vs-grad{position:absolute;inset:0;z-index:2;pointer-events:none;
  background:linear-gradient(180deg,rgba(8,10,13,.42) 0%,rgba(8,10,13,0) 26%,rgba(8,10,13,.06) 52%,rgba(8,10,13,.82) 88%,rgba(8,10,13,.94) 100%)}

.vs-top{position:absolute;right:14px;top:64px;z-index:6;display:flex;flex-direction:column;align-items:flex-end;gap:8px}
.vs-count{font-size:11.5px;color:rgba(255,255,255,.72);letter-spacing:.08em}
.vs-count b{color:#fff;font-size:13px}
.vs-mute{
  width:34px;height:34px;border-radius:50%;display:grid;place-items:center;cursor:pointer;
  border:1px solid rgba(255,255,255,.2);background:rgba(0,0,0,.32);color:#fff;backdrop-filter:blur(8px);
}
.vs-side{position:absolute;right:12px;bottom:132px;z-index:6;display:flex;flex-direction:column;gap:16px;align-items:center}
.vs-btn{
  display:flex;flex-direction:column;align-items:center;gap:5px;cursor:pointer;color:#fff;
  border:0;background:none;padding:0;font:inherit;
}
.vs-ic{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.22);background:rgba(10,12,16,.4);backdrop-filter:blur(8px);
  transition:.18s ease;
}
.vs-btn:hover .vs-ic{background:rgba(255,255,255,.2);transform:translateY(-1px)}
.vs-btn em{font-style:normal;font-size:11px;color:rgba(255,255,255,.9);letter-spacing:.02em}
.vs-btn[aria-pressed="true"] .vs-ic{background:rgba(214,88,80,.92);border-color:rgba(214,88,80,.9)}
.vs-btn[aria-pressed="true"] .vs-ic path{fill:currentColor}
.vs-btn-cta .vs-ic{background:#a4611c;border-color:#a4611c}
.vs-btn-cta:hover .vs-ic{background:#8c5015}

.vs-info{position:absolute;left:0;right:0;bottom:0;z-index:5;padding:0 62px 30px 18px;color:#fff}
.vs-info h2{font-size:18px;line-height:1.4;letter-spacing:-.01em;text-shadow:0 1px 12px rgba(0,0,0,.4)}
.vs-desc{margin-top:9px;font-size:13px;line-height:1.68;color:rgba(255,255,255,.86);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.vs-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.vs-tags span{font-size:11.5px;color:#e3c49a}
.vs-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px;align-items:center}
.vs-link,.vs-link-pri{
  display:inline-flex;align-items:center;gap:5px;font-size:12.5px;padding:7px 13px;border-radius:999px;
  border:1px solid rgba(255,255,255,.24);color:#fff;background:rgba(255,255,255,.06);backdrop-filter:blur(6px);
}
.vs-link-pri{background:#fff;color:#15181d;border-color:#fff;font-weight:600}
.vs-link:hover{background:rgba(255,255,255,.18)}
.vs-link-pri:hover{background:#f2eadf}
/* 进度条只在暂停时露出：播放中让画面干净，暂停时才提醒"看到哪儿了"。
   data-state 由 feed.js 在 play/pause 事件里写到 .vs 上 */
.vs-progress{position:absolute;left:0;right:0;bottom:0;height:2px;background:rgba(255,255,255,.16);z-index:7;
  opacity:0;transition:opacity .2s}
.vs-progress i{display:block;height:100%;width:0;background:#e0b478}
.vs[data-state="paused"] .vs-progress{opacity:1}

/* 封面 / 结尾卡 */
.vs-frame-cover{background:radial-gradient(120% 78% at 50% -6%,#232a34 0,#12151a 46%,#0a0c0f 100%)}
.vs-frame-cover::before{
  content:"";position:absolute;inset:0;z-index:0;opacity:.5;
  background:
    radial-gradient(60% 40% at 82% 18%,rgba(224,180,120,.18),transparent 70%),
    radial-gradient(50% 34% at 12% 76%,rgba(164,97,28,.16),transparent 72%);
}
.cover-in{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;padding:0 30px;max-width:430px}
.cover-eyebrow{font-size:11.5px;letter-spacing:.22em;color:#cfa870;margin-bottom:18px}
.cover-in h1,.cover-in h2{font-size:clamp(30px,8vw,42px);line-height:1.2;letter-spacing:-.02em;color:#fff}
.cover-lead{margin-top:18px;font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.72);max-width:22em}
.cover-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.cover-tags span{font-size:12px;padding:5px 11px;border-radius:999px;border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.85)}
.cover-tags i{font-style:normal;color:#cfa870;margin-left:4px}
.cover-hint{margin-top:34px;font-size:12.5px;color:rgba(255,255,255,.55);display:flex;align-items:center;gap:7px;animation:bob 1.9s ease-in-out infinite}
.cover-act{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.cover-icp{display:flex;flex-wrap:wrap;gap:4px 12px;margin-top:16px;font-size:11.5px;color:rgba(255,255,255,.4)}
.cover-icp a{color:inherit}
.cover-icp a:hover{color:rgba(255,255,255,.72)}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(5px)}}
@media (prefers-reduced-motion:reduce){.cover-hint{animation:none}.feed-track{scroll-behavior:auto}}

/* --------------------------------------------------------------- 视频卡片 */
.vgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.vgrid-4{grid-template-columns:repeat(4,1fr)}
.vcard{display:block;min-width:0}
.vcard-media{display:block;position:relative;aspect-ratio:9/16;border-radius:12px;overflow:hidden;background:#e9e6e1}
.vcard-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.vcard:hover .vcard-media img{transform:scale(1.04)}
.vcard-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,12,15,.06) 40%,rgba(10,12,15,.5) 100%)}
.vcard-play{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);z-index:2;
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;color:#fff;
  background:rgba(10,12,15,.42);border:1px solid rgba(255,255,255,.42);backdrop-filter:blur(6px);
  transition:.2s ease;
}
.vcard:hover .vcard-play{background:rgba(164,97,28,.9);border-color:rgba(164,97,28,.9);transform:translate(-50%,-50%) scale(1.06)}
.vcard-time{position:absolute;right:8px;bottom:8px;z-index:2;font-size:11px;color:#fff;background:rgba(10,12,15,.62);padding:2px 7px;border-radius:5px;letter-spacing:.02em}
.vcard-bd{padding:11px 2px 0}
.vcard-bd h3{font-size:14px;line-height:1.5;color:#1b1f26;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.vcard-bd h3 a{color:inherit;text-decoration:none}
.vcard-bd h3 a:hover{color:#a4611c}
.vcard-bd p{margin-top:6px;font-size:11.5px;color:#8a8f98}
.vcard:hover .vcard-bd h3{color:#a4611c}

/* --------------------------------------------------------------- 列表页筛选 */
.phead-act{margin-top:22px;display:flex;gap:10px;flex-wrap:wrap}
.vbar{display:flex;gap:10px;align-items:center;margin-bottom:14px}
.vsearch{position:relative;flex:1;min-width:0;display:flex;align-items:center}
.vsearch>.ico{position:absolute;left:15px;color:#9aa0a9;pointer-events:none}
.vsearch input{
  width:100%;font:inherit;font-size:14.5px;line-height:1.4;padding:11px 42px;
  border:1px solid #e2ded7;border-radius:999px;background:#fff;color:#1b1f26;
  -webkit-appearance:none;appearance:none;transition:border-color .16s ease,box-shadow .16s ease;
}
.vsearch input::-webkit-search-cancel-button{display:none}
.vsearch input::placeholder{color:#a5aab2}
.vsearch input:focus{outline:none;border-color:#c9a05a;box-shadow:0 0 0 3px rgba(201,160,90,.15)}
.vsearch-clear{
  position:absolute;right:7px;width:28px;height:28px;padding:0;border:0;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;background:#f0eee9;color:#6f757e;cursor:pointer;
}
.vsearch-clear:hover{background:#e6e2db;color:#15181d}
.vfeed{
  margin-left:auto;flex:0 0 auto;display:inline-flex;align-items:center;gap:6px;font-size:13px;color:#a4611c;
  padding:9px 15px;border-radius:999px;border:1px dashed #d9c7ad;background:#fdfaf5;white-space:nowrap;
}
.vfeed:hover{background:#f7efe3}
.vcount{margin:0 0 18px;font-size:13px;color:#8a8f98}
.vempty{
  padding:28px 20px;border:1px dashed #e2ded7;border-radius:14px;background:#fdfcfa;
  text-align:center;color:#5c626b;font-size:14px;
}
.vempty p{margin:0}
.vempty p+p{margin-top:14px}
.vhome-act{margin-top:24px}

/* --------------------------------------------------------------- 详情页播放器 */
.vplayer{
  position:relative;margin:24px 0 6px;max-width:380px;border-radius:14px;overflow:hidden;background:#0d0f12;
  border:1px solid #e6e2db;
}
/* 详情页自动播放是静音起播（浏览器策略），给一个声音开关 */
.vp-sound{
  position:absolute;right:10px;top:10px;z-index:3;display:inline-flex;align-items:center;gap:6px;
  padding:7px 11px;border:1px solid rgba(255,255,255,.34);border-radius:999px;
  background:rgba(10,12,16,.55);color:#fff;font:inherit;font-size:12.5px;cursor:pointer;
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);transition:background .18s,border-color .18s;
}
.vp-sound:hover{background:rgba(10,12,16,.8)}
.vp-sound.on{border-color:rgba(201,154,84,.75);background:rgba(164,97,28,.82)}
.vp-sound b{font-weight:600;letter-spacing:.02em}
.vp-sound span{display:inline-flex}
/* 详情页左下角：进连播（满屏、接下来全是竖屏视频） */
.vp-feed{
  position:absolute;left:10px;bottom:10px;z-index:3;display:inline-flex;align-items:center;gap:6px;
  padding:7px 12px;border-radius:999px;font-size:12.5px;font-weight:600;color:#fff;text-decoration:none;
  background:rgba(10,12,16,.55);border:1px solid rgba(255,255,255,.3);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);transition:background .18s;
}
.vp-feed:hover{background:rgba(164,97,28,.9);border-color:rgba(164,97,28,.9)}
.vp-feed .ico{vertical-align:-1px}
.vplayer video,.vplayer img{display:block;width:100%;height:auto}
.vchapters{margin:14px 0;padding:0;list-style:none}
.vchapters li{display:flex;gap:14px;align-items:baseline;padding:9px 0;border-bottom:1px dashed #eae6df}
.vchapters b{font-size:12.5px;color:#a4611c;font-variant-numeric:tabular-nums;flex:0 0 52px}
.vchapters span{font-size:14.5px;color:#2c323a}

/* 视频详情的要点列表 */
.vpoints{margin:12px 0 18px;padding:0;list-style:none}
.prose .vpoints,.vpoints li{list-style:none;margin:0;padding:0}
.vpoints li{position:relative;padding:10px 0 10px 26px;font-size:15px;line-height:1.75;color:#2c323a;border-bottom:1px dashed #eae6df}
.vpoints li:last-child{border-bottom:0}
.vpoints li::before{content:"";position:absolute;left:6px;top:20px;width:5px;height:5px;border-radius:50%;background:#a4611c}

/* 详情页底部的全部视频文字索引 */
.sec-allv{padding:26px 0 0;margin-top:26px;border-top:1px solid #eae7e1}
.vall{margin:0;padding:0;list-style:none;display:grid;grid-template-columns:repeat(2,1fr);gap:2px 26px}
.vall li{display:flex;gap:12px;align-items:baseline;justify-content:space-between;padding:9px 0;border-bottom:1px dashed #f0ece5}
.vall a{font-size:14px;color:#2c323a;text-decoration:none}
.vall a:hover{color:#a4611c;text-decoration:underline}
.vall li.on a{color:#8a8f98}
.vall li.on a::after{content:"（当前）";font-size:12px;color:#a8adb5}
.vall i{font-size:12px;color:#a8adb5;font-variant-numeric:tabular-nums;flex:0 0 auto}

/* 产品页里的视频条 */
.vmini{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.vmini-item{display:flex;gap:14px;padding:12px;border:1px solid #eae7e1;border-radius:12px;background:#fff;transition:.18s ease}
.vmini-item:hover{border-color:#d6cec1;box-shadow:0 10px 24px rgba(20,24,30,.06)}
.vmini-img{position:relative;flex:0 0 86px;width:86px;aspect-ratio:9/16;border-radius:8px;overflow:hidden;background:#efede9}
.vmini-img img{width:100%;height:100%;object-fit:cover}
.vmini-img i{
  position:absolute;left:0;right:0;bottom:0;display:flex;align-items:center;gap:3px;justify-content:center;
  font-style:normal;font-size:10.5px;color:#fff;background:rgba(10,12,15,.6);padding:3px 0;
}
.vmini-bd{display:flex;flex-direction:column;min-width:0;padding-top:2px}
.vmini-bd b{font-size:14.5px;line-height:1.5;color:#1b1f26;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.vmini-bd em{font-style:normal;margin-top:6px;font-size:12.5px;line-height:1.6;color:#7a808a;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.vmini-bd u{margin-top:auto;padding-top:8px;text-decoration:none;font-size:12.5px;color:#a4611c;font-weight:600}

.noscript-list{list-style:disc;padding-left:18px;color:#3b414a}
.noscript-list li{margin:6px 0}

/* --------------------------------------------------------------- 响应式 */
@media (min-width:901px){
  .vs-frame{border-radius:16px;height:min(100dvh,100%);box-shadow:0 30px 80px rgba(0,0,0,.55)}
  .vs{padding:0 16px}
  .feed-track{scroll-padding-top:0}
}
@media (max-width:1080px){
  .vgrid,.vgrid-4{grid-template-columns:repeat(3,1fr)}
  .nav>a,.nav-drop>a{padding:9px 10px;font-size:14.5px}
}
@media (max-width:900px){
  .vgrid,.vgrid-4{grid-template-columns:repeat(2,1fr);gap:14px}
  .vmini{grid-template-columns:1fr}
  .vs-frame{max-width:none;border-radius:0}
  .vs-frame:not(.vs-frame-cover) .vs-bg{display:none}
  .vs-side{bottom:118px;right:10px}
  .vs-info{padding:0 58px 26px 16px}
  .vs-info h2{font-size:16.5px}
  .vs-desc{font-size:12.5px;-webkit-line-clamp:2}
  .feed-bar{padding:12px 14px}
}
@media (max-width:420px){
  .feed-chip{padding:5px 10px;font-size:11.5px}
  .feed-brand{font-size:13px;gap:7px}
  .feed-brand img{height:22px}
  .feed-bar{padding:12px 12px}
}
@media (max-width:640px){
  .vgrid,.vgrid-4{grid-template-columns:repeat(2,1fr);gap:12px}
  .vcard-bd h3{font-size:13px}
  .vbar{flex-wrap:wrap}
  .vsearch{flex:1 0 100%}
  .vsearch input{font-size:16px;padding:9px 40px}
  .vfeed{margin-left:0;padding:8px 14px}
  .cover-in{padding:0 22px}
  /* 详情页播放器在手机上贴边满宽：竖屏视频在正文里缩成一小块最难看 */
  .vplayer{max-width:none;margin-left:-16px;margin-right:-16px;border:0;border-radius:0}
  .vp-sound{right:12px;top:12px;padding:7px 12px;background:rgba(10,12,16,.62)}
  /* 手机上底部有常驻分类条，按钮放左上角才不会被压住 */
  .vp-feed{left:12px;top:12px;bottom:auto;background:rgba(10,12,16,.62)}
  .vall{grid-template-columns:1fr;gap:0}
  .vall a{font-size:13.5px}
  .vpoints li{font-size:14.5px;line-height:1.7}
}

/* 暂停态提示 */
.vs[data-state="paused"] .vs-grad::before{
  content:"";position:absolute;left:50%;top:44%;transform:translate(-50%,-50%);
  width:58px;height:58px;border-radius:50%;background:rgba(8,10,13,.42);
  border:1px solid rgba(255,255,255,.55);backdrop-filter:blur(4px);
}
.vs[data-state="paused"] .vs-grad::after{
  content:"";position:absolute;left:50%;top:44%;transform:translate(-34%,-50%);
  border-style:solid;border-width:11px 0 11px 18px;border-color:transparent transparent transparent #fff;
}

/* 轻提示 */
.feed-toast{
  position:fixed;left:50%;bottom:86px;transform:translate(-50%,10px);z-index:99;
  max-width:80vw;padding:10px 18px;border-radius:999px;font-size:13px;color:#fff;
  background:rgba(20,24,30,.9);border:1px solid rgba(255,255,255,.16);backdrop-filter:blur(8px);
  opacity:0;transition:.24s ease;pointer-events:none;word-break:break-all;text-align:center;
}
.feed-toast.on{opacity:1;transform:translate(-50%,0)}

/* 首屏引导：第一版有封面卡写着"向下滑动开始"，去掉封面后，用一条几秒就消失的提示代替。
   位置压在文案块（.vs-info）上方，别挡住标题和标签 */
.feed-hint{
  position:fixed;left:50%;bottom:258px;transform:translate(-50%,10px);z-index:88;
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 16px;border-radius:999px;font-size:13px;color:#fff;
  background:rgba(20,24,30,.82);border:1px solid rgba(255,255,255,.2);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  opacity:0;transition:opacity .35s ease,transform .35s ease;pointer-events:none;white-space:nowrap;
}
.feed-hint.on{opacity:1;transform:translate(-50%,0)}
.feed-hint::after{
  content:"";width:7px;height:7px;border-right:1.6px solid #d8b07a;border-bottom:1.6px solid #d8b07a;
  transform:rotate(-45deg) translateY(-1px);
}

/* ==========================================================================
   右侧悬浮咨询条（.rail）+ 微信面板（.wxpop）
   --------------------------------------------------------------------------
   宽屏固定在右侧，只占页面留白（.wrap 1200 居中，桌面有余量）；
   1024 以下交给底部悬浮条上的微信/电话两个按钮，面板改为居中弹出。
   面板是 .rail 的兄弟节点而不是子节点：窄屏也要能打开，不能被 .rail 的
   display:none 带走。
   ========================================================================== */
.rail{display:none}
.wxpop{
  position:fixed;right:84px;top:50%;transform:translateY(-50%);z-index:90;
  width:232px;padding:18px 16px 14px;text-align:center;
  background:#fff;border:1px solid #eae7e1;border-radius:14px;
  box-shadow:0 22px 50px -18px rgba(20,24,30,.32);
}
.wxpop[hidden]{display:none}
.wxpop-x{
  position:absolute;right:8px;top:8px;width:26px;height:26px;padding:0;
  display:grid;place-items:center;border:0;border-radius:7px;
  background:transparent;color:#9aa0a8;cursor:pointer;
}
.wxpop-x:hover{background:#f4f1ec;color:#3d444e}
.wxpop-h{font-size:15.5px;font-weight:700}
.wxpop-qr{width:180px;height:180px;object-fit:contain;margin:12px auto 6px;border-radius:8px}
.wxpop-s{margin-top:8px;font-size:12.5px;line-height:1.6;color:#787e88}
.wxpop-id{
  margin-top:11px;display:flex;align-items:center;justify-content:center;gap:8px;
  padding:8px 10px;background:#f8f6f2;border:1px solid #eee9e1;border-radius:9px;
}
.wxpop-id span{font-size:14.5px;font-weight:600;letter-spacing:.03em;color:#1b1f26;font-variant-numeric:tabular-nums}
.wxpop-copy{
  flex:0 0 auto;border:0;border-radius:999px;padding:3px 10px;
  background:#a4611c;color:#fff;font:inherit;font-size:11.5px;line-height:1.6;cursor:pointer;
  transition:background .18s ease;
}
.wxpop-copy:hover{background:#8d5216}
.wxpop-copy.on{background:#2f8a43}
.wxpop-t{margin-top:9px;font-size:11.5px;line-height:1.6;color:#9aa0a8}

/* 只在 1280px 以上出现：1200 容器居中后右侧还剩 25px 白边，加上卡片自身内边距，
   悬浮条正好落在卡片文字之外，不会压住正文；更窄的桌面用页头那部电话，
   平板和手机用底部悬浮条。 */
@media (min-width:1280px){
  .rail{
    display:flex;flex-direction:column;gap:8px;
    position:fixed;right:14px;top:50%;transform:translateY(-50%);z-index:80;
  }
  .rail-i{
    width:54px;padding:11px 0 9px;display:flex;flex-direction:column;align-items:center;gap:5px;
    background:#fff;border:1px solid #eae7e1;border-radius:11px;
    box-shadow:0 8px 22px -12px rgba(20,24,30,.26);
    color:#a4611c;font:inherit;cursor:pointer;
    transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  }
  .rail-i b{font-size:12px;font-weight:600;line-height:1;color:#3d444e;letter-spacing:.02em}
  .rail-i:hover,.rail-i:focus-visible{
    border-color:#d6cec1;transform:translateY(-1px);
    box-shadow:0 12px 26px -14px rgba(20,24,30,.34);color:#8d5216;
  }
  .rail-i:focus-visible{outline:2px solid #a4611c;outline-offset:2px}
  .rail-i:active{transform:none}
}
/* 短视频连播是满屏深色，右侧浮层会挡住进度和文案，直接不显示 */
body.feedpage .rail{display:none}

/* ==========================================================================
   移动端底部悬浮分类条（.mcat）
   --------------------------------------------------------------------------
   窄屏常驻：随时切换产品分类，右侧固定一个电话按钮（B2B 站点的电话入口在
   移动端头部是隐藏的，这里补上）。宽屏不渲染，由 media query 控制。
   注意：.mcat 上有 backdrop-filter，会成为 fixed 后代的包含块——
   里面不要再放 position:fixed 的东西。
   ========================================================================== */
.mcat{display:none}
@media (max-width:900px){
  .mcat{
    display:flex;align-items:center;gap:9px;
    position:fixed;left:0;right:0;bottom:0;z-index:70;
    padding:8px 12px;
    padding-bottom:calc(8px + env(safe-area-inset-bottom, 0px));
    background:rgba(255,255,255,.96);
    -webkit-backdrop-filter:saturate(1.5) blur(10px);
    backdrop-filter:saturate(1.5) blur(10px);
    border-top:1px solid #e9e5de;
    box-shadow:0 -10px 26px -16px rgba(20,24,30,.28);
  }
  /* 给底部条让出空间，别盖住页面最后一行内容 */
  body{padding-bottom:54px;padding-bottom:calc(54px + env(safe-area-inset-bottom, 0px))}
  body.feedpage{padding-bottom:0}
  /* 备案行紧挨着底栏太挤，多留一段呼吸空间 */
  .ft-icp{padding-bottom:36px}
  .mcat-sc{
    display:flex;gap:5px;flex:1 1 auto;min-width:0;
    overflow-x:auto;overflow-y:hidden;
    -webkit-overflow-scrolling:touch;scrollbar-width:none;
  }
  .mcat-sc::-webkit-scrollbar{display:none}
  .mcat-i{
    flex:0 0 auto;padding:7px 10px;border-radius:999px;
    background:#f4f1ec;border:1px solid #e8e4dd;color:#464d56;
    font-size:12px;line-height:1.25;white-space:nowrap;
  }
  .mcat-i.on{background:#a4611c;border-color:#a4611c;color:#fff;font-weight:600}
  .mcat-tel{
    flex:0 0 auto;width:38px;height:36px;border-radius:999px;
    display:inline-flex;align-items:center;justify-content:center;
    background:linear-gradient(135deg,#b4711f,#8d5216);color:#fff;
    box-shadow:0 6px 14px -6px rgba(164,97,28,.7);transition:transform .15s ease;
  }
  .mcat-tel:active{transform:scale(.95)}
  /* 微信按钮：和电话并排，绿色区分；边框清零（button 默认有框） */
  .mcat-wx{
    padding:0;border:0;cursor:pointer;
    background:#e8f4ec;color:#2f8a43;box-shadow:none;
  }
  .mcat-wx[aria-expanded="true"]{background:#2f8a43;color:#fff}
  /* 窄屏面板改居中弹出，宽度跟着屏走，不贴着右侧 */
  .wxpop{
    left:50%;right:auto;top:50%;transform:translate(-50%,-50%);
    width:min(84vw,240px);
  }
  /* 移动菜单展开时收起，别压在菜单上 */
  html:has(.navtog:checked) .mcat{display:none}
}

/* ==========================================================================
   留言提交成功页（/contact/sent/）
   ========================================================================== */
.sent{max-width:560px;margin:0 auto;text-align:center;padding:10px 0 6px}
.sent-ico{display:inline-flex;align-items:center;justify-content:center;width:62px;height:62px;border-radius:50%;
  background:#eaf5ec;color:#2f8a43;margin-bottom:16px}
.sent-ico svg{width:30px;height:30px}
.sent h1{font-size:30px;line-height:1.25;margin:0 0 12px}
.sent-lead{font-size:17px;color:#2c333b;margin:0 0 8px}
.sent-note{font-size:13.5px;color:#7b8189;line-height:1.7;margin:0 0 14px}
.sent-card{background:#f7f4ef;border:1px solid #ece7df;border-radius:12px;padding:18px 20px;margin:6px 0 16px}
.sent-card p{margin:0 0 8px;font-size:13.5px;color:#5d646e}
.sent-tel{font-size:26px;font-weight:700;letter-spacing:.01em;color:#a4611c}
.sent-act{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:4px}
@media (max-width:520px){
  .sent h1{font-size:24px}
  .sent-lead{font-size:15.5px}
  .sent-tel{font-size:23px}
  .sent-act .btn{flex:1 1 46%}
}

/* ==========================================================================
   首页头图取景（源图 hero-12428，1831×916 约 2:1）：
   厂牌"幕百金属"在图片横向约 48%~72%；手机竖屏只能露出约 26% 宽度，
   默认 62% 取景让厂牌完整入画；平板以上宽度足够，整图基本无裁切。
   ========================================================================== */
@media (max-width:560px){
  .hero-bg img{object-position:var(--hero-pos-m,62% 50%)}
}

/* ==========================================================================
   工程案例（/case/ 列表 + 详情 + 首页区块）
   ========================================================================== */
.cgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cgrid-3{grid-template-columns:repeat(3,1fr)}
.casecard{display:flex;flex-direction:column;background:#fff;border:1px solid #eae7e1;border-radius:12px;overflow:hidden;text-decoration:none;transition:.2s ease}
.casecard:hover{border-color:#d6cec1;box-shadow:0 14px 30px rgba(20,24,30,.08);transform:translateY(-2px)}
.casecard-img{position:relative;aspect-ratio:4/3;background:#f2f0ec;overflow:hidden}
.casecard-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.casecard:hover .casecard-img img{transform:scale(1.04)}
.casecard-tag{position:absolute;left:12px;top:12px;font-size:12px;letter-spacing:.02em;color:#fff;background:rgba(20,24,29,.62);backdrop-filter:blur(3px);border-radius:999px;padding:4px 11px}
.casecard-bd{padding:16px 16px 18px}
.casecard-bd h3{font-size:16px;line-height:1.5;color:#22262d}
.casecard-meta{margin-top:8px;font-size:13px;color:#8a8f98}

/* 详情：项目信息条 */
.case-facts{display:flex;flex-wrap:wrap;gap:0;margin:20px 0 6px;border:1px solid #eae7e1;border-radius:10px;overflow:hidden;background:#fbfaf8}
.case-facts li{flex:1 1 140px;padding:12px 16px;border-right:1px solid #eae7e1;list-style:none}
.case-facts li:last-child{border-right:0}
.case-facts span{display:block;font-size:12px;color:#8a8f98;margin-bottom:3px}
.case-facts b{font-size:14.5px;font-weight:600;color:#22262d}

/* 详情：主图 + 图集 */
.case-hero{margin:20px 0 6px;border-radius:12px;overflow:hidden;background:#f2f0ec}
.case-hero img{display:block;width:100%;height:auto}
.case-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:16px 0 8px}
.case-gallery a{display:block;border-radius:9px;overflow:hidden;background:#f2f0ec}
.case-gallery img{display:block;width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .4s ease}
.case-gallery a:hover img{transform:scale(1.03)}

@media (max-width:900px){
  .cgrid,.cgrid-3{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  .cgrid,.cgrid-3{grid-template-columns:1fr 1fr;gap:10px}
  .casecard-bd{padding:10px 10px 12px}
  .casecard-bd h3{font-size:13.5px;line-height:1.45}
  .casecard-meta{font-size:11.5px;margin-top:5px}
  .casecard-tag{left:8px;top:8px;font-size:10.5px;padding:3px 8px}
  .case-facts li{flex:1 1 100%;border-right:0;border-bottom:1px solid #eae7e1}
  .case-facts li:last-child{border-bottom:0}
  .case-gallery{grid-template-columns:1fr 1fr;gap:8px}
}

/* ============================================================== RAL 色卡
   /color/ 专用。色块靠内联 background 上色，其余全在这里，方便统一调。
   窄屏关掉 sticky（头部 62px + 工具条 60px 会把可视区挤掉太多）。 */
.palchips{margin-top:20px;display:flex;gap:0;height:8px;border-radius:5px;overflow:hidden;max-width:420px}
.palchips i{flex:1}

.palbar{position:sticky;top:72px;z-index:8;display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin:0 -22px 26px;padding:12px 22px;background:rgba(247,245,241,.95);
  backdrop-filter:saturate(150%) blur(10px);border-bottom:1px solid #eae7e1}
.palsearch{flex:1 1 240px;display:flex;align-items:center;gap:8px;height:40px;padding:0 12px;
  background:#fff;border:1px solid #ddd8d0;border-radius:9px;transition:.15s ease}
.palsearch:focus-within{border-color:#a4611c;box-shadow:0 0 0 3px rgba(164,97,28,.09)}
.palsearch svg{flex:0 0 auto;color:#a0a6af}
.palsearch input{flex:1;height:100%;border:0;outline:0;background:transparent;font:inherit;font-size:14px;min-width:0}
.paljump{display:flex;gap:6px;flex-wrap:wrap}
.paljump a{padding:6px 11px;border:1px solid #e2ddd5;border-radius:99px;background:#fff;
  font-size:12.5px;color:#5d646e;font-variant-numeric:tabular-nums;transition:.15s ease}
.paljump a:hover{border-color:#a4611c;color:#a4611c}
.palcount{margin-left:auto;font-size:12.5px;color:#8a8f98;font-variant-numeric:tabular-nums}

.palsec{margin-bottom:34px;scroll-margin-top:150px}
.palsec-hd{display:flex;flex-wrap:wrap;align-items:baseline;gap:10px 12px;margin-bottom:14px}
.palsec-hd h2{font-size:17px;letter-spacing:-.01em}
.palsec-hd p{flex:1 1 340px;margin:0;font-size:12.5px;line-height:1.65;color:#8a8f98}
.palsec-n{padding:3px 9px;border-radius:99px;background:#fbf3e8;color:#a4611c;font-size:12px;font-variant-numeric:tabular-nums}

/* 桌面 5 列；整张卡都是颜色，文字压在色块上（去掉下方白条） */
.pal-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.pal-item{position:relative;display:flex;flex-direction:column;justify-content:flex-end;
  min-height:184px;padding:0;border:1px solid rgba(0,0,0,.09);border-radius:10px;overflow:hidden;
  text-align:left;font:inherit;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}
.pal-item:hover{transform:translateY(-2px);border-color:rgba(0,0,0,.16);box-shadow:0 10px 22px rgba(20,24,30,.14)}
.pal-item:focus-visible{outline:2px solid #a4611c;outline-offset:2px}
/* 色值标签固定在左上角，不跟文字抢位置 */
.pal-c{position:absolute;left:0;top:0;padding:10px}
.pal-c i{font-style:normal;font-size:11.5px;letter-spacing:.02em;color:rgba(25,28,32,.5);font-variant-numeric:tabular-nums}
.pal-item.on-dark .pal-c i{color:rgba(255,255,255,.72)}
.pal-t{display:flex;align-items:baseline;justify-content:center;flex-wrap:nowrap;gap:8px;
  padding:0 12px 15px;text-align:center}
.pal-t b{flex:0 0 auto;font-size:13px;color:#1c2128;letter-spacing:.01em;font-variant-numeric:tabular-nums;
  text-shadow:0 0 3px rgba(255,255,255,.5)}
.pal-t em{flex:0 1 auto;min-width:0;font-style:normal;font-size:12px;color:rgba(28,33,40,.66);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pal-item.on-dark .pal-t b{color:#fff;text-shadow:0 1px 3px rgba(0,0,0,.3)}
.pal-item.on-dark .pal-t em{color:rgba(255,255,255,.78)}
.palempty{padding:44px 0;text-align:center;color:#8a8f98;font-size:14px}

.paltoast{position:fixed;left:50%;bottom:26px;z-index:60;transform:translate(-50%,14px);
  padding:10px 16px;border-radius:9px;background:#22262c;color:#fff;font-size:13px;line-height:1.5;
  box-shadow:0 12px 30px rgba(0,0,0,.22);opacity:0;pointer-events:none;transition:.22s ease;max-width:86vw}
.paltoast.on{opacity:1;transform:translate(-50%,0)}

/* 产品页侧栏的色卡入口 */
.side-pal-chips{display:flex;height:8px;border-radius:4px;overflow:hidden;margin:0 0 12px}
.side-pal-chips i{flex:1}
.side-link{font-size:13.5px;font-weight:600;color:#a4611c}
.side-link:hover{color:#8a4d13}

@media (max-width:1080px){
  .palbar{top:62px}
}
@media (max-width:900px){
  .paljump{order:3;flex-wrap:nowrap;overflow-x:auto;width:100%;-ms-overflow-style:none;scrollbar-width:none}
  .paljump::-webkit-scrollbar{display:none}
  .palcount{order:2}
  /* 平板 2 列，色块高度与文字排法和桌面一致 */
  .pal-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .palsec{scroll-margin-top:130px}
}
@media (max-width:640px){
  .palbar{position:static;margin:0 0 22px;padding:0;border-bottom:0;background:none;backdrop-filter:none}
  .palsec{scroll-margin-top:80px}
  /* 手机单列：整卡满行宽、整卡填色，文字压在色块底部 */
  .pal-grid{grid-template-columns:1fr;gap:10px}
  .pal-item{min-height:212px}
  .pal-t{padding:0 14px 16px;gap:9px}
  .pal-t b{font-size:17px}
  .pal-t em{font-size:14.5px}
  .palsec-hd p{font-size:12px}
  .palchips{max-width:none}
}

/* 色卡页收一下顶部留白（.phead 34 + .sec 76 叠起来太空），
   胶囊按钮禁止被压窄换行，否则窄屏会挤成圆圈 */
.pal-sec{padding:34px 0 64px}
.paljump a{flex:0 0 auto;white-space:nowrap}
@media (max-width:640px){
  .pal-sec{padding:24px 0 48px}
}

/* ------------------------------------------------------------------ FAQ（联系页） */
.faq{display:grid;grid-template-columns:1fr;border-top:1px solid #eceae5}
.faq-item{padding:22px 0 24px;border-bottom:1px solid #eceae5}
.faq-item h3{position:relative;padding-left:32px;font-size:17px;line-height:1.5;margin:0 0 9px}
.faq-item h3::before{
  content:"Q";position:absolute;left:0;top:1px;width:22px;height:22px;line-height:21px;
  text-align:center;font-size:13px;font-weight:800;color:#a4611c;
  border:1px solid #e3d3bd;border-radius:50%;background:#fdfaf5;
}
.faq-item p{padding-left:32px;color:#4a515c;font-size:15px;line-height:1.85}
@media(min-width:860px){
  .faq{grid-template-columns:1fr 1fr;column-gap:52px}
  .faq-item{padding:24px 0 26px}
}