/* ============================================================
   先朗新材料 - 全站样式 (对标 centuray.com)
   ============================================================ */

/* ---------- 设计变量 (linttop 风：深蓝主调 + 橙金强调) ---------- */
:root{
  --c-primary:      #1B4791;   /* 深海军蓝 - 与 logo 同色 */
  --c-primary-dark: #102E5E;
  --c-primary-light:#3D6AB5;
  --c-accent:       #E69500;   /* 橙金 - CTA / 高亮 */
  --c-accent-dark:  #B87100;
  --c-secondary:    #0D1B33;   /* 更深的 navy 用于深色区块 */
  --c-text:         #6b7280;
  --c-heading:      #0F172A;
  --c-bg:           #FFFFFF;
  --c-bg-soft:      #F4F6FA;
  --c-bg-dark:      #0D1B33;
  --c-border:       #D1D5DB;
  --c-border-soft:  #E5E7EB;
  --shadow-sm: 0 4px 12px rgba(0,0,0,.06);
  --shadow-md: 0 6px 20px rgba(0,0,0,.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,.12);

  --container: 1680px;
  --radius: 4px;
  --t: .25s ease;

  --ff: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

/* ---------- 基础重置 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--ff);font-size:16px;line-height:1.7;
  color:var(--c-text);background:var(--c-bg);
}
img,svg,video{max-width:100%;height:auto;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--c-primary-dark)}
h1,h2,h3,h4,h5,h6{color:var(--c-heading);font-weight:700;margin:0 0 .6em;line-height:1.3}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:transparent}

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

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 28px;font-size:14px;font-weight:600;
  border-radius:var(--radius);transition:all var(--t);
  cursor:pointer;border:1px solid transparent;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-outline{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary);color:#fff}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover{background:var(--c-accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 22px rgba(230,149,0,.35)}
.btn-ghost{background:transparent;color:var(--c-primary);padding:6px 0;border-bottom:2px solid var(--c-primary);border-radius:0}
.btn-ghost:hover{color:var(--c-primary-dark);border-color:var(--c-primary-dark)}
.btn-white{background:#fff;color:var(--c-secondary)}
.btn-white:hover{background:var(--c-primary);color:#fff}

/* ---------- 通用 section 标题 ---------- */
.section{padding:100px 0}
.section--soft{background:var(--c-bg-soft)}
.section--dark{
  background:
    radial-gradient(circle at 20% 30%,rgba(27,71,145,.4),transparent 60%),
    radial-gradient(circle at 80% 70%,rgba(230,149,0,.15),transparent 50%),
    linear-gradient(135deg,#0D1B33 0%,#1B2D4A 100%);
  color:#bdbdbd;position:relative;overflow:hidden;
}
.section--dark::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px);
  background-size:40px 40px;pointer-events:none;
}
.section--dark > .container{position:relative;z-index:1}
.section--dark h1,.section--dark h2,.section--dark h3,.section--dark h4{color:#fff}

/* 数字带 - 深色背景下白色超大数字 + 橙后缀 */
.stats-band .stats{gap:24px}
.stats-band .stat-num{
  font-size:72px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,#fff 60%,#7d99c4 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.stats-band .stat-num .suffix{color:var(--c-accent);-webkit-text-fill-color:var(--c-accent)}
.stats-band .stat-label{color:rgba(255,255,255,.7);font-weight:500;letter-spacing:.12em}
@media (max-width:760px){.stats-band .stat-num{font-size:42px}}
.section-head{text-align:center;max-width:760px;margin:0 auto 60px}
.section-head .eyebrow{
  color:var(--c-accent);font-size:13px;font-weight:700;letter-spacing:.15em;
  text-transform:uppercase;display:block;margin-bottom:12px;
  padding-left:0;
}
.section-head .eyebrow::before{display:none}
.section-head h2{font-size:44px;margin-bottom:16px;font-weight:800;letter-spacing:-.01em;line-height:1.2}
.section-head p{font-size:15px;color:var(--c-text)}
.section-head--left{text-align:left;margin-left:0}

@media (max-width:760px){
  .section{padding:60px 0}
  .section-head h2{font-size:28px}
  .section-head{margin-bottom:40px}
}

/* ============================================================
   1. HEADER
   ============================================================ */
.site-header{
  position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);
  backdrop-filter:blur(12px);border-bottom:1px solid transparent;
  transition:background .3s, border-color .3s, box-shadow .3s, height .3s;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.98);border-bottom-color:var(--c-border-soft);
  box-shadow:0 2px 16px rgba(0,0,0,.04);
}
.site-header.is-scrolled .header-inner{height:60px}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;transition:height .3s}

.brand{display:inline-flex;align-items:center;gap:12px;color:var(--c-heading);transition:transform var(--t);text-decoration:none}
.brand:hover{color:var(--c-heading)}

/* 图标容器 - 适配方形 logo (SVG 或 PNG)，超宽的旧 logo 也能自动裁出左侧图标 */
.brand-icon{
  display:inline-flex;align-items:center;justify-content:flex-start;
  width:54px;height:54px;flex-shrink:0;overflow:hidden;border-radius:6px;
  transition:transform .4s cubic-bezier(.2,.7,.2,1);
}
.brand-icon img{
  height:54px;width:auto;display:block;max-width:none;
}
.brand:hover .brand-icon{transform:scale(1.04)}

.brand-text{
  display:flex;flex-direction:column;line-height:1.2;gap:2px;min-width:0;
}
.brand-text strong{
  font-size:19px;color:#1B4791;font-weight:700;letter-spacing:.01em;
  white-space:nowrap;
}
.brand-text em{
  font-style:normal;font-size:11px;color:#C0392B;
  letter-spacing:.08em;font-weight:600;
  white-space:nowrap;
}

/* 页脚版品牌 - 文字版 */
.brand--footer{display:flex;flex-direction:column;gap:6px;line-height:1.4}
.brand--footer .brand-icon{display:none}
.footer-brand-zh{
  font-size:17px;font-weight:700;color:#fff;letter-spacing:.02em;
}
.footer-brand-en{
  font-size:11px;font-weight:500;color:#6e757c;letter-spacing:.12em;
  text-transform:uppercase;
}

@media (max-width:1100px){
  .brand-text strong{font-size:16px}
  .brand-text em{font-size:10px;letter-spacing:.05em}
}
@media (max-width:760px){
  .brand-icon{width:42px;height:42px;border-radius:4px}
  .brand-icon img{height:42px}
  .brand-text strong{font-size:14px}
  .brand-text em{display:none}
}

.site-nav{display:flex;gap:4px;align-items:center}
.nav-link{
  position:relative;padding:10px 14px;font-size:16px;font-weight:500;
  color:var(--c-heading);border-radius:var(--radius);
}
.nav-link:hover{color:var(--c-primary)}
.nav-link.active{color:var(--c-primary)}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--c-primary);border-radius:1px;
}

.nav-toggle{display:none;flex-direction:column;gap:5px;width:36px;height:36px;
  align-items:center;justify-content:center;}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--c-heading);transition:all var(--t)}

/* 导航 - 二级下拉菜单 (产品中心) */
.nav-dropdown{position:relative}
.nav-dropdown > .nav-link{display:inline-flex;align-items:center;gap:4px}
.nav-dropdown .nav-caret{font-size:10px;opacity:.7;transition:transform .25s}
.nav-dropdown:hover .nav-caret{transform:rotate(180deg)}
.nav-sub{
  position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(-6px);
  min-width:280px;background:#fff;border:1px solid var(--c-border-soft);
  border-radius:10px;box-shadow:0 16px 40px rgba(15,20,30,.15);padding:8px;
  opacity:0;visibility:hidden;transition:all .25s;z-index:200;
}
.nav-dropdown:hover .nav-sub,
.nav-dropdown:focus-within .nav-sub{
  opacity:1;visibility:visible;transform:translateX(-50%) translateY(0);
}
.nav-sub-item{
  display:flex;align-items:center;gap:12px;
  padding:10px 14px;border-radius:6px;color:var(--c-heading);text-decoration:none;
  transition:background .2s,color .2s;
}
.nav-sub-item:hover{background:var(--c-bg-soft);color:var(--c-primary-dark)}
.nav-sub-icon{font-size:20px;flex-shrink:0}
.nav-sub-text{display:flex;flex-direction:column;line-height:1.3;min-width:0}
.nav-sub-text strong{font-size:13.5px;font-weight:600}
.nav-sub-text em{font-style:normal;font-size:11px;color:var(--c-text);margin-top:2px}
@media (max-width:960px){
  .nav-dropdown .nav-caret{display:none}
  .nav-sub{
    position:static;transform:none;min-width:0;width:100%;box-shadow:none;
    border:0;border-left:2px solid var(--c-primary);border-radius:0;padding:0;margin-left:14px;
    opacity:1;visibility:visible;
  }
  .nav-sub-item{padding:8px 12px}
  .nav-dropdown > .nav-link::after{display:none}
}

/* 语言切换下拉 - nav 末尾右侧，中/英原生 + 在线翻译合一 */
.lang-wrap{position:relative;margin-left:14px}
.lang-trigger{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;font-size:13px;font-weight:600;
  border:1px solid var(--c-border);border-radius:var(--radius);
  color:var(--c-heading);background:#fff;transition:all var(--t);
  cursor:pointer;
}
.lang-trigger:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.lang-trigger .lang-globe{font-size:14px}
.lang-trigger .lang-trigger-flag{margin-right:0;width:20px;height:14px;border:1px solid rgba(0,0,0,.12)}
.lang-trigger .lang-caret{font-size:11px;opacity:.7}

.lang-menu{
  display:none;
  position:absolute;top:calc(100% + 8px);right:0;
  min-width:240px;background:#fff;border:1px solid var(--c-border-soft);
  border-radius:var(--radius);box-shadow:0 12px 32px rgba(0,0,0,.18);
  padding:6px 0;
  z-index:200;
  max-height:70vh;overflow-y:auto;
  animation:langMenuIn .2s ease;
}
.lang-wrap.open .lang-menu{display:block}
@keyframes langMenuIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
.lang-item{
  display:flex;justify-content:flex-start;align-items:center;gap:0;
  width:100%;padding:9px 16px;font-size:13.5px;
  color:var(--c-heading);background:transparent;border:0;cursor:pointer;
  text-align:left;font-family:inherit;
  transition:background var(--t),color var(--t);
}
.lang-item:hover{background:var(--c-bg-soft);color:var(--c-primary-dark)}
.lang-item.is-active{background:rgba(27,71,145,.08);color:var(--c-primary-dark);font-weight:600}
.lang-item.is-active::after{content:"✓";color:var(--c-primary);font-weight:700;margin-left:6px}
.lang-item small{font-size:11px;color:var(--c-text);font-weight:400;margin-left:8px}
.lang-flag{display:inline-block;width:20px;text-align:center;margin-right:8px;font-size:14px;line-height:1}
/* 本地 SVG 国旗（无 CDN 依赖） */
.fi{display:inline-block;width:20px;height:15px;margin-right:8px;background-size:cover;background-position:50% 50%;background-repeat:no-repeat;border:1px solid rgba(0,0,0,.08);border-radius:2px;vertical-align:-2px;flex-shrink:0}
.fi-cn{background-image:url(/assets/images/flags/cn.svg)}
.fi-gb{background-image:url(/assets/images/flags/gb.svg)}
.fi-jp{background-image:url(/assets/images/flags/jp.svg)}
.fi-kr{background-image:url(/assets/images/flags/kr.svg)}
.fi-de{background-image:url(/assets/images/flags/de.svg)}
.fi-fr{background-image:url(/assets/images/flags/fr.svg)}
.fi-es{background-image:url(/assets/images/flags/es.svg)}
.fi-pt{background-image:url(/assets/images/flags/pt.svg)}
.fi-it{background-image:url(/assets/images/flags/it.svg)}
.fi-ru{background-image:url(/assets/images/flags/ru.svg)}
.fi-sa{background-image:url(/assets/images/flags/sa.svg)}
.fi-th{background-image:url(/assets/images/flags/th.svg)}
.fi-vn{background-image:url(/assets/images/flags/vn.svg)}
.fi-tr{background-image:url(/assets/images/flags/tr.svg)}
.fi-in{background-image:url(/assets/images/flags/in.svg)}
.fi-id{background-image:url(/assets/images/flags/id.svg)}
.lang-divider{height:1px;background:var(--c-border-soft);margin:6px 0}
.lang-section-label{
  padding:6px 16px 4px;font-size:11px;color:var(--c-text);
  text-transform:uppercase;letter-spacing:.1em;font-weight:600;
}
.lang-reset{color:var(--c-text);font-size:12.5px}
.lang-reset:hover{color:#c0392b}

@media (max-width:960px){
  .lang-wrap{margin:8px 0 0;width:fit-content}
  .lang-menu{right:auto;left:0;min-width:240px;max-height:60vh}
}

/* 隐藏 Google Translate 浏览器顶部插入的提示条 */
body{top:0 !important}
.goog-te-banner-frame,.skiptranslate{display:none !important}
.VIpgJd-ZVi9od-aZ2wEe-wOHMyf, .VIpgJd-ZVi9od-aZ2wEe-OiiCO{display:none !important}

@media (max-width:960px){
  .site-nav{
    position:absolute;top:72px;left:0;right:0;flex-direction:column;
    background:#fff;border-bottom:1px solid var(--c-border-soft);
    padding:12px 24px;gap:0;display:none;box-shadow:var(--shadow-sm);
  }
  .site-nav.open{display:flex}
  .nav-link{width:100%;padding:14px 0;border-bottom:1px solid var(--c-border-soft)}
  .nav-link:last-child{border:0}
  .nav-link.active::after{display:none}
  .nav-toggle{display:flex}
}

/* ============================================================
   2. HERO 轮播
   ============================================================ */
.hero{
  position:relative;min-height:92vh;display:flex;align-items:center;
  justify-content:center;overflow:hidden;color:#fff;
  background:#0d1b33;
}
.hero-slides{position:absolute;inset:0}
.hero-slide{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:0;transition:opacity 1.2s ease-in-out;
}
.hero-slide.active{opacity:1}
.hero-slide--video video{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
}
.hero-slide::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(180deg,rgba(13,27,51,.55) 0%,rgba(13,27,51,.45) 40%,rgba(13,27,51,.92) 100%),
    linear-gradient(90deg,rgba(13,27,51,.5) 0%,rgba(27,71,145,.1) 50%,transparent 100%);
}
.hero-inner{
  position:relative;z-index:2;text-align:left;padding:120px 24px 100px;
  width:100%;max-width:1680px;margin:0 auto;
}
/* 巨型水印文字 */
.hero::before{
  content:"XIANLANG";position:absolute;right:-40px;top:30%;
  font-size:240px;font-weight:900;letter-spacing:-.05em;line-height:1;
  color:rgba(255,255,255,.04);z-index:1;
  pointer-events:none;font-family:Arial Black,sans-serif;
  white-space:nowrap;
}
@media (max-width:960px){.hero::before{font-size:120px;right:-20px}}
.hero-eyebrow{
  display:inline-block;padding:6px 14px;border:1px solid rgba(255,255,255,.3);
  border-radius:999px;font-size:11.5px;font-weight:600;letter-spacing:.2em;
  text-transform:uppercase;color:rgba(255,255,255,.85);margin-bottom:22px;
  backdrop-filter:blur(6px);background:rgba(255,255,255,.06);
}
.hero h1{
  color:#fff;font-size:64px;font-weight:800;line-height:1.15;
  margin-bottom:24px;letter-spacing:-.02em;
  text-shadow:0 4px 24px rgba(0,0,0,.4);
  max-width:920px;
}
@media (max-width:1100px){.hero h1{font-size:48px}}
.hero h1 .accent{
  color:var(--c-accent);
  background:linear-gradient(135deg,#FFB845,#E69500);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hero h1::after{
  content:"";display:block;width:80px;height:4px;background:var(--c-accent);
  margin-top:24px;border-radius:2px;
}
.hero p{
  font-size:17px;color:rgba(255,255,255,.85);margin-bottom:38px;
  max-width:680px;line-height:1.75;
}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}

/* 底部 stats overlay - 横向数据带 */
.hero-stats{
  position:absolute;left:0;right:0;bottom:0;z-index:3;
  background:linear-gradient(180deg,transparent,rgba(13,27,51,.92));
  padding:24px 0 28px;
}
.hero-stats-inner{
  max-width:1680px;margin:0 auto;padding:0 24px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.hero-stat{
  display:flex;flex-direction:column;color:#fff;
  border-left:2px solid var(--c-accent);padding-left:16px;
}
.hero-stat-num{font-size:30px;font-weight:800;letter-spacing:-.02em;line-height:1}
.hero-stat-num .suffix{font-size:.55em;color:var(--c-accent);margin-left:2px}
.hero-stat-label{
  font-size:11.5px;color:rgba(255,255,255,.7);
  margin-top:8px;text-transform:uppercase;letter-spacing:.1em;
}

@media (max-width:760px){
  .hero h1{font-size:28px}
  .hero h1::after{width:60px}
  .hero-inner{padding:90px 16px 60px}
  .hero-stats-inner{grid-template-columns:repeat(2,1fr);gap:14px}
  .hero-stat-num{font-size:22px}
  .hero p{font-size:14px}
}

.hero-dots{
  position:absolute;bottom:140px;right:24px;z-index:4;display:flex;gap:8px;
}
.hero-dots button{
  width:30px;height:3px;background:rgba(255,255,255,.35);
  border-radius:2px;transition:background var(--t),width .25s;
}
.hero-dots button.active{background:var(--c-accent);width:44px}
@media (max-width:760px){.hero-dots{bottom:160px;right:auto;left:50%;transform:translateX(-50%)}}

@media (max-width:760px){
  .hero{min-height:80vh}
  .hero h1{font-size:26px}
  .hero p{font-size:15px}
  .hero-inner{padding:80px 16px}
}

/* ============================================================
   3. 通用卡片网格
   ============================================================ */
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media (max-width:960px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

.card{
  background:#fff;border-radius:var(--radius);overflow:hidden;
  transition:transform var(--t),box-shadow var(--t);
  border:1px solid var(--c-border-soft);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.card-body{padding:28px 24px}
.card-icon{
  width:64px;height:64px;border-radius:var(--radius);
  background:rgba(27,71,145,.1);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;margin-bottom:20px;
}
.card-icon svg{width:32px;height:32px}
.card h3{font-size:18px;margin-bottom:12px}
.card p{font-size:14px;color:var(--c-text);margin-bottom:16px}
.card .card-more{font-size:13px;color:var(--c-primary);font-weight:600}
.card .card-img{aspect-ratio:4/3;object-fit:cover;width:100%}

/* linttop 风 mosaic 解决方案拼图 - 3 列 × 2 行均匀网格 (6 卡正好填满) */
.mosaic{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  grid-auto-rows:280px;
  gap:14px;
}
.mosaic-tile{
  position:relative;display:block;
  background-size:cover;background-position:center;background-color:#0D1B33;
  border-radius:8px;overflow:hidden;
  transition:transform .4s cubic-bezier(.2,.7,.2,1);
  cursor:pointer;
}
.mosaic-tile,
.mosaic-tile:hover,
.mosaic-tile:visited{text-decoration:none;color:#fff}
.mosaic-tile--lg{}  /* 移除大卡跨格，统一尺寸 */
.mosaic-tile:hover{transform:translateY(-4px);box-shadow:0 20px 40px rgba(13,27,51,.25)}
.mosaic-tile::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,transparent 35%,rgba(13,27,51,.92) 100%);
  transition:background .3s;
}
.mosaic-tile:hover::before{
  background:linear-gradient(180deg,rgba(27,71,145,.25) 0%,rgba(13,27,51,.95) 100%);
}
.mosaic-tile .mosaic-overlay{
  position:absolute;left:0;right:0;bottom:0;z-index:2;
  padding:22px 24px;
  display:flex;flex-direction:column;
}
.mosaic-tile .mosaic-eyebrow{
  display:block;font-size:10.5px;font-weight:700;letter-spacing:.18em;
  color:var(--c-accent);margin:0 0 8px;text-transform:uppercase;
  padding:0;line-height:1.4;
}
.mosaic-tile .mosaic-eyebrow::before{display:none}
.mosaic-tile h3.mosaic-title,
.mosaic-tile .mosaic-overlay h3{
  color:#fff;font-size:19px;font-weight:700;margin:0 0 6px;line-height:1.3;
  text-shadow:0 2px 8px rgba(0,0,0,.4);
}
/* .mosaic-tile--lg .mosaic-overlay h3{font-size:24px} 已统一 */
.mosaic-tile .mosaic-overlay p{
  color:rgba(255,255,255,.85);font-size:13px;margin:0;line-height:1.55;
  opacity:0;max-height:0;transform:translateY(6px);
  transition:opacity .3s,max-height .3s,transform .3s;
  overflow:hidden;
}
.mosaic-tile:hover .mosaic-overlay p{opacity:1;max-height:80px;transform:none}
/* 所有卡的描述默认显示（不只是 lg） - 内容直接显式给出更好读 */
.mosaic-overlay p{opacity:1;max-height:80px;transform:none}

@media (max-width:960px){
  .mosaic{grid-template-columns:repeat(2,1fr);grid-auto-rows:240px}
}
@media (max-width:560px){
  .mosaic{grid-template-columns:1fr;grid-auto-rows:220px}
}

/* 业务领域卡 - 带顶部大图 */
.biz-card{text-align:left;overflow:hidden}
.biz-card .biz-img{
  aspect-ratio:16/10;background:#f3f4f6;overflow:hidden;position:relative;
}
.biz-card .biz-img::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 50%,rgba(0,0,0,.15) 100%);
  pointer-events:none;
}
.biz-card .biz-img img{
  width:100%;height:100%;object-fit:cover;display:block;
  transition:transform .45s cubic-bezier(.2,.7,.2,1);
}
.biz-card:hover .biz-img img{transform:scale(1.06)}
.biz-card .card-body{padding:22px 22px 24px}
.biz-card h3{font-size:17px;margin-bottom:8px}
.biz-card p{font-size:13.5px;line-height:1.65}

/* 合作伙伴 logo 卡 */
.partner-card{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--radius);
  padding:24px 16px;display:flex;align-items:center;justify-content:center;
  min-height:120px;transition:all var(--t);
}
.partner-card:hover{border-color:var(--c-primary);box-shadow:var(--shadow-sm)}
.partner-card img{max-height:80px;width:auto;filter:grayscale(.2);transition:filter var(--t)}
.partner-card:hover img{filter:grayscale(0)}

/* ============================================================
   4. 关于段（左文右图）
   ============================================================ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.split-reverse{grid-template-columns:1fr 1fr}
.split-reverse .split-img{order:-1}
.split-img img{border-radius:var(--radius);box-shadow:var(--shadow-md);width:100%;aspect-ratio:4/3;object-fit:cover}
.split-content h2{font-size:32px}
.split-content .eyebrow{
  color:var(--c-accent);font-size:13px;font-weight:700;letter-spacing:.15em;
  text-transform:uppercase;display:block;margin-bottom:12px;
}
@media (max-width:760px){
  .split{grid-template-columns:1fr;gap:32px}
  .split-reverse .split-img{order:0}
  .split-content h2{font-size:26px}
}

/* ============================================================
   5. 数字统计
   ============================================================ */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:40px;text-align:center}
.stats .stat-num{
  font-size:56px;font-weight:800;color:var(--c-heading);
  line-height:1;letter-spacing:-.02em;
}
.stats .stat-num .suffix{font-size:.6em;color:var(--c-accent);margin-left:4px;font-weight:700}
.stats .stat-label{font-size:14px;color:var(--c-text);margin-top:12px;text-transform:uppercase;letter-spacing:.08em}
@media (max-width:760px){
  .stats{grid-template-columns:repeat(2,1fr);gap:32px}
  .stats .stat-num{font-size:36px}
}

/* ============================================================
   6. 新闻列表
   ============================================================ */
.news-card{
  background:#fff;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--c-border-soft);transition:all var(--t);
  display:flex;flex-direction:column;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.news-card .news-img{aspect-ratio:16/9;background:var(--c-bg-soft);overflow:hidden}
.news-card .news-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.news-card:hover .news-img img{transform:scale(1.05)}
.news-card .news-body{padding:24px;flex:1;display:flex;flex-direction:column}
.news-date{font-size:12px;color:var(--c-primary);font-weight:600;letter-spacing:.05em;margin-bottom:8px}
.news-card h3{font-size:17px;margin-bottom:10px;line-height:1.5}
.news-card h3 a{color:var(--c-heading)}
.news-card h3 a:hover{color:var(--c-primary)}
.news-card .news-excerpt{font-size:14px;color:var(--c-text);flex:1;margin-bottom:16px}
.news-card .news-more{font-size:13px;color:var(--c-primary);font-weight:600;margin-top:auto}

/* 新闻详情 */
.news-article{max-width:820px;margin:0 auto}
.news-article header{margin-bottom:40px;text-align:center;border-bottom:1px solid var(--c-border-soft);padding-bottom:24px}
.news-article h1{font-size:32px;line-height:1.4;margin-bottom:12px}
.news-article .news-meta{font-size:13px;color:var(--c-text)}
.news-article .news-body{font-size:16px;line-height:1.9;color:#333}
.news-article .news-body p{margin-bottom:1.5em}
.news-article .news-body h2,.news-article .news-body h3{margin-top:1.6em;margin-bottom:.6em}

/* linttop 风 - 工业横幅 (深色 CTA 带) */
.industrial-band{
  background:
    linear-gradient(135deg,rgba(13,27,51,.95),rgba(27,71,145,.92)),
    url('/assets/images/img-7.png') center/cover;
  padding:80px 0;color:#fff;position:relative;overflow:hidden;
}
.industrial-band::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;
  background:var(--c-accent);
}
.industrial-content{
  display:flex;justify-content:space-between;align-items:center;
  gap:40px;flex-wrap:wrap;
}
.industrial-text{flex:1;min-width:280px}
.industrial-eyebrow{
  display:inline-block;font-size:11px;font-weight:700;letter-spacing:.25em;
  color:var(--c-accent);margin-bottom:14px;text-transform:uppercase;
  padding:4px 12px;border:1px solid rgba(230,149,0,.4);border-radius:4px;
}
.industrial-text h2{
  color:#fff;font-size:36px;font-weight:800;margin:0 0 12px;line-height:1.25;
  letter-spacing:-.01em;
}
.industrial-text p{
  color:rgba(255,255,255,.78);font-size:15px;margin:0;line-height:1.7;
  max-width:600px;
}
.industrial-cta{display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.industrial-link{
  color:rgba(255,255,255,.7);font-size:13px;font-weight:600;text-decoration:none;
  border-bottom:1px dashed rgba(255,255,255,.3);padding-bottom:2px;transition:all .2s;
}
.industrial-link:hover{color:var(--c-accent);border-color:var(--c-accent)}
.btn-lg{padding:14px 32px;font-size:15px;letter-spacing:.04em}

/* ============================================================
   7. CTA & 招聘
   ============================================================ */
.cta-band{background:var(--c-secondary);color:#fff;padding:80px 0}
.cta-band h2{color:#fff;font-size:32px}
.cta-band p{color:rgba(255,255,255,.75)}
.cta-band .split-content h2{color:#fff}

/* ============================================================
   8. 联系页 & 表单
   ============================================================ */
.contact-grid{display:grid;grid-template-columns:5fr 7fr;gap:60px;align-items:start}
@media (max-width:960px){.contact-grid{grid-template-columns:1fr;gap:40px}}

.contact-info{background:var(--c-bg-soft);padding:40px 32px;border-radius:var(--radius)}
.contact-info h3{font-size:22px;margin-bottom:24px}
.contact-info ul li{padding:14px 0;border-bottom:1px solid var(--c-border-soft);font-size:14px}
.contact-info ul li:last-child{border:0}
.contact-info ul li strong{display:block;color:var(--c-heading);margin-bottom:4px;font-size:13px;letter-spacing:.05em}

.form{background:#fff;border:1px solid var(--c-border-soft);padding:40px;border-radius:var(--radius)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media (max-width:560px){.form-row{grid-template-columns:1fr}}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-size:13px;font-weight:600;color:var(--c-heading);margin-bottom:8px}
.form-group label .req{color:#e34850;margin-left:2px}
.form-control{
  width:100%;padding:12px 14px;font-family:inherit;font-size:14px;color:var(--c-heading);
  background:#fff;border:1px solid var(--c-border);border-radius:var(--radius);
  transition:border-color var(--t),box-shadow var(--t);
}
.form-control:focus{outline:0;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,71,145,.15)}
textarea.form-control{resize:vertical;min-height:140px;line-height:1.6}

.form-alert{
  padding:14px 18px;border-radius:var(--radius);margin-bottom:20px;font-size:14px;
}
.form-alert--ok{background:rgba(27,71,145,.1);color:var(--c-primary-dark);border:1px solid rgba(27,71,145,.3)}
.form-alert--err{background:rgba(227,72,80,.08);color:#c0392b;border:1px solid rgba(227,72,80,.25)}

/* ============================================================
   9. 业务/研发 长页面 用的板块
   ============================================================ */
.feature-block{padding:80px 0;border-bottom:1px solid var(--c-border-soft)}
.feature-block:last-child{border:0}
.feature-block .split-content h2{font-size:30px}
.feature-list{margin-top:24px}
.feature-list li{
  padding:12px 0 12px 28px;position:relative;font-size:15px;color:#333;
  border-bottom:1px dashed var(--c-border-soft);
}
.feature-list li::before{
  content:"";position:absolute;left:0;top:18px;width:14px;height:14px;
  background:var(--c-primary);border-radius:50%;
  box-shadow:0 0 0 4px rgba(27,71,145,.15);
}
.feature-list li:last-child{border:0}

/* Accordion - 产品中心 */
.accordion{border:1px solid var(--c-border-soft);border-radius:var(--radius);background:#fff}
.accordion details{border-bottom:1px solid var(--c-border-soft)}
.accordion details:last-child{border-bottom:0}
.accordion summary{
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--c-heading);
  cursor:pointer;display:flex;justify-content:space-between;align-items:center;
  list-style:none;transition:background var(--t);
}
.accordion summary::-webkit-details-marker{display:none}
.accordion summary::after{
  content:"+";font-size:24px;color:var(--c-primary);font-weight:300;
  transition:transform var(--t);
}
.accordion details[open] summary{background:var(--c-bg-soft)}
.accordion details[open] summary::after{content:"−"}
.accordion .acc-body{padding:16px 24px 28px;color:var(--c-text);font-size:14px;line-height:1.8}
.accordion .acc-body p{margin-bottom:8px}
.accordion .acc-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.accordion .acc-tags span{
  font-size:12px;padding:4px 12px;background:rgba(27,71,145,.08);color:var(--c-primary-dark);
  border-radius:999px;
}

/* ============================================================
   10. 页面 Hero (子页面顶部 Banner)
   ============================================================ */
.page-hero{
  position:relative;padding:140px 0 80px;color:#fff;text-align:center;
  background:linear-gradient(135deg,#1f2a40 0%,#0d1a30 100%);
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 20% 30%,rgba(27,71,145,.18),transparent 50%),
             radial-gradient(circle at 80% 70%,rgba(27,71,145,.1),transparent 50%);
}
.page-hero .container{position:relative;z-index:2}
.page-hero h1{color:#fff;font-size:42px;margin-bottom:12px;letter-spacing:.02em}
.page-hero .crumb{color:rgba(255,255,255,.7);font-size:13px;letter-spacing:.08em}
.page-hero .crumb a{color:rgba(255,255,255,.7)}
.page-hero .crumb a:hover{color:#fff}
@media (max-width:760px){
  .page-hero{padding:80px 0 50px}
  .page-hero h1{font-size:30px}
}

/* ============================================================
   11. 时间线 / 历程
   ============================================================ */
.timeline{position:relative;padding-left:0;max-width:760px;margin:0 auto}
.timeline::before{
  content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;
  background:var(--c-border);
}
.timeline-item{position:relative;padding:0 0 32px 36px}
.timeline-item::before{
  content:"";position:absolute;left:2px;top:6px;width:16px;height:16px;
  border-radius:50%;background:#fff;border:3px solid var(--c-primary);z-index:1;
}
.timeline-item:last-child{padding-bottom:0}
.timeline-year{font-size:14px;color:var(--c-primary);font-weight:700;letter-spacing:.05em;margin-bottom:6px}
.timeline-item h4{font-size:17px;margin-bottom:6px}
.timeline-item p{font-size:14px;color:var(--c-text);margin:0}

/* ============================================================
   12. FOOTER
   ============================================================ */
.site-footer{
  background:linear-gradient(180deg,#0D1B33 0%,#08111F 100%);
  color:#9aa1a8;padding:70px 0 0;margin-top:80px;
  border-top:3px solid var(--c-accent);
}
.site-footer .footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1.2fr 1.6fr;gap:48px;padding-bottom:50px;
}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.05em}
.site-footer ul li{padding:6px 0;font-size:14px}
.site-footer a{color:#9aa1a8}
.site-footer a:hover{color:var(--c-primary)}
.footer-tagline{font-size:14px;margin-top:16px;line-height:1.8}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text em{color:#6e757c}
.footer-contact li span{color:#6e757c;display:inline-block;width:42px;font-size:12px}

/* 社交图标 */
.footer-social{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}
.social-btn{
  width:38px;height:38px;border-radius:8px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.06);color:rgba(255,255,255,.7);
  border:1px solid rgba(255,255,255,.08);
  transition:all .25s;
}
.social-btn:hover{
  background:var(--c-accent);color:#fff;
  transform:translateY(-2px);box-shadow:0 6px 14px rgba(230,149,0,.4);
  border-color:var(--c-accent);
}

/* 产品手册 PDF 下载块 */
.footer-catalog{
  display:flex;align-items:center;gap:12px;margin-top:18px;
  padding:14px 16px;background:rgba(230,149,0,.1);
  border:1px solid rgba(230,149,0,.3);border-radius:8px;
  text-decoration:none;color:#fff;transition:all .25s;
}
.footer-catalog:hover{
  background:rgba(230,149,0,.25);border-color:var(--c-accent);transform:translateY(-2px);
  color:#fff;
}
.catalog-icon{
  flex-shrink:0;background:var(--c-accent);color:#fff;
  font-size:11px;font-weight:800;font-family:Menlo,Consolas,monospace;
  padding:5px 8px;border-radius:4px;letter-spacing:.05em;
}
.catalog-text{display:flex;flex-direction:column;line-height:1.3;gap:2px}
.catalog-text strong{font-size:13px;color:#fff;font-weight:600}
.catalog-text em{font-style:normal;font-size:11px;color:rgba(255,255,255,.7)}

.footer-bottom{border-top:1px solid #1f262e;padding:20px 0;font-size:13px}
.footer-bottom .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}

@media (max-width:960px){
  .site-footer .footer-grid{grid-template-columns:1fr 1fr;gap:40px}
}
@media (max-width:560px){
  .site-footer .footer-grid{grid-template-columns:1fr}
}

/* ============================================================
   13. 后台样式 (admin/*) - 左侧栏 + 顶部窄条 + 右侧主区
   ============================================================ */
.admin-body{background:#f3f5f8;font-family:var(--ff);margin:0;min-height:100vh}

/* 整体布局 */
.admin-layout{display:flex;min-height:100vh}
.admin-shell{flex:1;display:flex;flex-direction:column;min-width:0}

/* 左侧栏 */
.admin-sidebar{
  width:240px;flex-shrink:0;background:#0D1B33;color:#cbd5e1;
  display:flex;flex-direction:column;
  position:sticky;top:0;height:100vh;overflow-y:auto;
}
.admin-sidebar-head{padding:22px 20px 18px;border-bottom:1px solid rgba(255,255,255,.06)}
.admin-sidebar-brand{display:flex;align-items:stretch;gap:12px}
/* 橙色竖条品牌标识（替代方块 logo） */
.admin-sidebar-bar{
  width:3px;height:auto;align-self:stretch;border-radius:2px;
  background:linear-gradient(180deg,#E69500 0%,#C97A00 100%);
  box-shadow:0 0 0 1px rgba(230,149,0,.18),0 2px 8px rgba(230,149,0,.18);
}
.admin-sidebar-meta{display:flex;flex-direction:column;justify-content:center;line-height:1.25;min-width:0;gap:3px}
.admin-sidebar-meta strong{
  color:#fff;font-size:17px;font-weight:700;letter-spacing:.18em;
  font-family:'Inter','Helvetica Neue',Arial,sans-serif;
}
.admin-sidebar-meta em{
  font-style:normal;font-size:10.5px;color:#94a3b8;letter-spacing:.14em;
  text-transform:uppercase;font-weight:500;
}

.admin-sidebar-nav{flex:1;padding:18px 12px;display:flex;flex-direction:column;gap:18px}
.admin-sidebar-group{display:flex;flex-direction:column;gap:1px}
.admin-sidebar-group-title{
  font-size:10.5px;color:#64748b;font-weight:700;
  letter-spacing:.15em;text-transform:uppercase;
  padding:0 12px 8px;
}
.admin-sidebar-link{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:9px 12px;font-size:13.5px;color:#cbd5e1;text-decoration:none;
  border-radius:6px;transition:all .2s;
  position:relative;
}
.admin-sidebar-link:hover{
  background:rgba(255,255,255,.04);color:#fff;
}
.admin-sidebar-link.is-active{
  background:linear-gradient(90deg,rgba(230,149,0,.18),transparent 80%);
  color:#fff;font-weight:600;
}
.admin-sidebar-link.is-active::before{
  content:"";position:absolute;left:-12px;top:50%;transform:translateY(-50%);
  width:3px;height:18px;background:var(--c-accent);border-radius:0 3px 3px 0;
}
.admin-sidebar-link--danger{color:#fca5a5}
.admin-sidebar-link--danger:hover{background:rgba(220,38,38,.1);color:#fee2e2}
.admin-sidebar-ext{font-size:11px;color:#64748b}

.admin-sidebar-foot{
  padding:12px 16px;border-top:1px solid rgba(255,255,255,.06);
}
.admin-sidebar-user{display:flex;align-items:center;gap:10px}
.admin-sidebar-avatar{
  width:34px;height:34px;border-radius:50%;
  background:linear-gradient(135deg,#E69500,#B87100);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:13px;flex-shrink:0;
}
.admin-sidebar-user-meta{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.admin-sidebar-user-meta strong{color:#fff;font-size:13px;font-weight:600}
.admin-sidebar-user-meta em{font-style:normal;font-size:11px;color:#64748b;margin-top:1px}

/* 顶部窄条 */
.admin-topbar{
  background:#fff;border-bottom:1px solid var(--c-border-soft);
  padding:16px 28px;display:flex;justify-content:space-between;align-items:center;
  position:sticky;top:0;z-index:50;box-shadow:0 1px 0 rgba(15,20,30,.04);
}
.admin-topbar-title{font-size:18px;font-weight:700;color:var(--c-heading)}
.admin-topbar-actions{display:flex;gap:10px;align-items:center}

@media (max-width:960px){
  .admin-sidebar{
    position:fixed;left:0;top:0;width:240px;z-index:100;
    transform:translateX(-100%);transition:transform .25s;
  }
  .admin-sidebar.open{transform:translateX(0);box-shadow:0 0 50px rgba(0,0,0,.3)}
  .admin-shell{width:100%}
}
.admin-header{
  background:var(--c-secondary);color:#fff;padding:14px 24px;
  display:flex;justify-content:space-between;align-items:center;
}
.admin-header h1{color:#fff;font-size:18px;margin:0}
.admin-header .admin-nav{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.admin-header .admin-nav a{color:rgba(255,255,255,.7);font-size:13px;text-decoration:none;transition:color .2s}
.admin-header .admin-nav a:hover{color:#fff}
.admin-header .admin-nav a.is-active-nav{color:#fff;font-weight:600}
.admin-nav-group{
  display:inline-flex;gap:2px;align-items:center;padding:3px 4px;
  background:rgba(255,255,255,.06);border-radius:6px;
}
.admin-nav-group a{
  padding:4px 9px;font-size:12.5px;border-radius:4px;transition:background .2s,color .2s;
}
.admin-nav-group a:hover{background:rgba(255,255,255,.1);color:#fff}
.admin-nav-group a.is-active-nav{background:var(--c-primary);color:#fff}
@media (max-width:1100px){
  .admin-header h1{font-size:15px}
  .admin-header .admin-nav{font-size:12px;gap:10px}
  .admin-nav-group a{padding:3px 7px;font-size:11.5px}
}
/* admin-main 在新 layout 下满宽 */
.admin-main{flex:1;padding:28px 36px;width:100%;max-width:none;margin:0}
@media (max-width:760px){.admin-main{padding:20px 16px}}
.admin-toolbar{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  background:#fff;padding:16px 20px;border-radius:var(--radius);margin-bottom:18px;
  box-shadow:var(--shadow-sm);
}
.admin-toolbar .filter{display:flex;gap:8px;align-items:center;font-size:14px;color:var(--c-text)}
.admin-toolbar .filter a{
  padding:6px 14px;border-radius:var(--radius);background:#eef1f5;color:#444;font-size:13px;
}
.admin-toolbar .filter a.active{background:var(--c-primary);color:#fff}
.admin-stats{display:flex;gap:20px;font-size:13px;color:var(--c-text)}
.admin-stats b{color:var(--c-heading);font-size:18px;margin-right:4px}

.admin-table{
  width:100%;background:#fff;border-radius:var(--radius);overflow:hidden;
  border-collapse:collapse;box-shadow:var(--shadow-sm);
}
.admin-table th,.admin-table td{
  padding:14px 16px;text-align:left;font-size:14px;border-bottom:1px solid var(--c-border-soft);
  vertical-align:top;
}
.admin-table th{background:#f7f9fc;color:var(--c-heading);font-weight:600;font-size:13px}
.admin-table tr:last-child td{border-bottom:0}
.admin-table tr.unread{background:#fffceb}
.admin-table tr.unread td:first-child::before{
  content:"●";color:#f59e0b;margin-right:6px;
}
.admin-table .col-msg{max-width:380px;white-space:pre-line;color:#333;font-size:13px;line-height:1.6}
.admin-table .col-action{white-space:nowrap}
.admin-table .col-action a{font-size:12px;margin-right:10px;color:var(--c-primary)}
.admin-table .col-action a.danger{color:#c0392b}

.admin-pager{display:flex;justify-content:center;gap:8px;margin:24px 0;flex-wrap:wrap}
.admin-pager a,.admin-pager span{
  padding:6px 12px;border-radius:var(--radius);background:#fff;border:1px solid var(--c-border-soft);
  font-size:13px;color:#333;
}
.admin-pager a:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.admin-pager .current{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}

.admin-login{
  max-width:380px;margin:80px auto;background:#fff;padding:40px;
  border-radius:var(--radius);box-shadow:var(--shadow-md);
}
.admin-login h1{font-size:22px;text-align:center;margin-bottom:8px}
.admin-login .sub{text-align:center;color:var(--c-text);font-size:13px;margin-bottom:28px}
.admin-login .form-group{margin-bottom:16px}
.admin-login .btn{width:100%;justify-content:center}

.admin-empty{padding:60px 20px;text-align:center;color:var(--c-text);background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-sm)}

.admin-detail{background:#fff;padding:32px;border-radius:var(--radius);box-shadow:var(--shadow-sm);max-width:760px;margin:0 auto}
.admin-detail dl{margin:0}
.admin-detail dt{font-size:12px;color:var(--c-text);margin-top:14px;letter-spacing:.05em}
.admin-detail dd{margin:4px 0 0;font-size:15px;color:var(--c-heading);white-space:pre-line;line-height:1.7}

/* ============ 后台 v2 - 统计卡 ============ */
.stat-cards{
  display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-bottom:20px;
}
.stat-card{
  background:#fff;border-radius:10px;padding:18px 20px;
  border:1px solid var(--c-border-soft);
  box-shadow:0 2px 8px rgba(15,20,30,.04);
  position:relative;overflow:hidden;
  transition:transform .25s,box-shadow .25s;
}
.stat-card:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(15,20,30,.08)}
.stat-card-label{font-size:12px;color:var(--c-text);letter-spacing:.05em;margin-bottom:8px}
.stat-card-value{font-size:30px;font-weight:800;color:var(--c-heading);line-height:1;letter-spacing:-.02em}
.stat-card-suffix{font-size:14px;font-weight:600;color:var(--c-text);margin-left:4px}
.stat-card-foot{font-size:11.5px;color:var(--c-text);margin-top:10px}
.stat-card-icon{
  position:absolute;right:-8px;bottom:-8px;width:60px;height:60px;
  color:rgba(27,71,145,.08);
}
.stat-card--primary{
  background:linear-gradient(135deg,#1B4791,#102E5E);color:#fff;
}
.stat-card--primary .stat-card-label{color:rgba(255,255,255,.85)}
.stat-card--primary .stat-card-value{color:#fff}
.stat-card--primary .stat-card-suffix{color:rgba(255,255,255,.8)}
.stat-card--primary .stat-card-foot{color:rgba(255,255,255,.78)}
.stat-card--primary .stat-card-icon{color:rgba(255,255,255,.15)}
@media (max-width:1100px){.stat-cards{grid-template-columns:repeat(3,1fr)}}
@media (max-width:760px){.stat-cards{grid-template-columns:repeat(2,1fr)}}

/* ============ 后台 v2 - 搜索/筛选工具栏 ============ */
.admin-filter{flex-wrap:wrap;gap:14px}
.admin-filter .filter{flex-wrap:wrap}
.admin-filter .filter label{font-size:12.5px;color:var(--c-text);margin-right:4px}
.filter-right{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-left:auto}
.filter-search{
  padding:7px 12px;border:1px solid var(--c-border);border-radius:6px;
  font-size:13px;width:280px;background:#fff;font-family:inherit;
  transition:all .2s;
}
.filter-search:focus{outline:0;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,71,145,.15)}
.filter-date{
  padding:6px 10px;border:1px solid var(--c-border);border-radius:6px;
  font-size:12.5px;color:var(--c-heading);background:#fff;font-family:inherit;
}
.filter-sep{color:var(--c-text);font-size:12px}
.btn-filter{
  padding:7px 16px;background:var(--c-primary);color:#fff;border:0;border-radius:6px;
  font-size:13px;font-weight:600;cursor:pointer;transition:background .2s;
}
.btn-filter:hover{background:var(--c-primary-dark)}
.btn-clear{
  padding:7px 12px;background:#fee;color:#c0392b;border:1px solid #fcc;border-radius:6px;
  font-size:12.5px;text-decoration:none;
}
.btn-clear:hover{background:#fdd;color:#c0392b}
@media (max-width:760px){.filter-search{width:100%}.filter-right{width:100%}}

/* ============ 后台 v2 - 批量操作条 ============ */
.bulk-bar{
  display:none;align-items:center;gap:10px;
  background:#fff7e6;border:1px solid #ffd591;border-radius:8px;padding:10px 16px;
  margin-bottom:14px;animation:bulkIn .25s ease;
}
.bulk-bar.open{display:flex}
@keyframes bulkIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
.bulk-info{font-size:13px;color:#874d00}
.bulk-info b{color:#fa8c16;font-size:15px;margin:0 4px}
.btn-bulk{
  padding:6px 14px;background:#fff;color:#874d00;border:1px solid #ffd591;
  border-radius:5px;font-size:12.5px;font-weight:600;cursor:pointer;font-family:inherit;
  transition:all .2s;
}
.btn-bulk:hover{background:#fa8c16;color:#fff;border-color:#fa8c16}
.btn-bulk--danger{color:#c0392b;border-color:#fcc;background:#fff}
.btn-bulk--danger:hover{background:#c0392b;border-color:#c0392b;color:#fff}

/* checkbox 样式 */
.admin-table input[type="checkbox"]{
  width:16px;height:16px;cursor:pointer;accent-color:var(--c-primary);
}
.btn-row{
  display:inline-block;padding:5px 12px;font-size:12px;border-radius:4px;
  background:#fff;color:var(--c-primary);border:1px solid var(--c-primary);
  text-decoration:none;font-weight:500;transition:all .2s;
}
.btn-row:hover{background:var(--c-primary);color:#fff}
.btn-row--danger{color:#c0392b;border-color:#fcc}
.btn-row--danger:hover{background:#c0392b;border-color:#c0392b;color:#fff}

/* Toast - 通用 */
.toast{
  position:fixed;top:24px;right:24px;z-index:2000;
  padding:14px 20px;border-radius:10px;font-size:14px;font-weight:500;
  box-shadow:0 12px 32px rgba(0,0,0,.18);
  animation:toastIn .35s cubic-bezier(.2,.7,.2,1);
  cursor:pointer;max-width:380px;
}
@keyframes toastIn{
  from{opacity:0;transform:translateY(-12px) translateX(20px)}
  to{opacity:1;transform:none}
}
.toast.toast-hide{
  opacity:0;transform:translateY(-12px) translateX(20px);transition:all .4s;
}
.toast--ok{background:#dcfce7;color:#14532d;border:1px solid #86efac}
.toast--err{background:#fee2e2;color:#991b1b;border:1px solid #fca5a5}

/* Toast - 增强版（保存按钮反馈） */
.toast--big{
  display:flex;align-items:center;gap:14px;padding:18px 24px;
  min-width:280px;
  box-shadow:0 20px 50px rgba(0,0,0,.22), 0 8px 20px rgba(0,0,0,.1);
}
.toast--big.toast--ok{
  background:linear-gradient(135deg,#dcfce7,#bbf7d0);
  border:1px solid #86efac;
}
.toast--big.toast--err{
  background:linear-gradient(135deg,#fee2e2,#fecaca);
  border:1px solid #fca5a5;
}
.toast--big strong{display:block;font-size:15px;font-weight:700;letter-spacing:.02em}
.toast-icon{
  flex-shrink:0;width:36px;height:36px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;
}
.toast--ok .toast-icon{background:#16a34a;color:#fff;box-shadow:0 4px 12px rgba(22,163,74,.35)}
.toast--err .toast-icon{background:#dc2626;color:#fff;box-shadow:0 4px 12px rgba(220,38,38,.35)}

/* ============ 后台 v2 - 详情页 ============ */
.detail-wrap{display:grid;grid-template-columns:1fr 320px;gap:20px}
@media (max-width:960px){.detail-wrap{grid-template-columns:1fr}}

.detail-card{
  background:#fff;border-radius:10px;padding:24px 28px;
  border:1px solid var(--c-border-soft);box-shadow:0 2px 8px rgba(15,20,30,.04);
  margin-bottom:16px;
}
.detail-card-head{
  display:flex;justify-content:space-between;align-items:flex-start;gap:12px;flex-wrap:wrap;
  padding-bottom:20px;margin-bottom:20px;border-bottom:1px solid var(--c-border-soft);
}
.detail-actions-top{display:flex;gap:8px;flex-wrap:wrap}

.detail-section{margin-bottom:24px}
.detail-section:last-child{margin-bottom:0}
.detail-section-label{
  font-size:12px;color:var(--c-text);letter-spacing:.05em;text-transform:uppercase;
  font-weight:600;margin-bottom:10px;
}
.detail-message{
  background:#f9fafb;padding:16px 18px;border-radius:8px;
  font-size:14px;line-height:1.8;color:#1f2937;white-space:pre-line;
  border-left:3px solid var(--c-primary);
}

.detail-note-input{
  width:100%;padding:12px 14px;font-family:inherit;font-size:13.5px;line-height:1.7;
  border:1px solid var(--c-border);border-radius:8px;background:#fffbeb;
  resize:vertical;min-height:120px;transition:all .2s;
}
.detail-note-input:focus{outline:0;border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 3px rgba(27,71,145,.15)}
.btn-save{
  padding:8px 20px;background:var(--c-primary);color:#fff;border:0;border-radius:6px;
  font-size:13px;font-weight:600;cursor:pointer;font-family:inherit;transition:all .2s;
}
.btn-save:hover{background:var(--c-primary-dark);box-shadow:0 4px 12px rgba(27,71,145,.3)}

.detail-nav{display:flex;justify-content:space-between;gap:10px;margin-top:16px}
.detail-nav-btn{
  padding:10px 16px;background:#fff;border:1px solid var(--c-border-soft);
  border-radius:8px;font-size:13px;color:var(--c-heading);text-decoration:none;
  transition:all .2s;flex:1;text-align:center;
}
.detail-nav-btn:hover{border-color:var(--c-primary);color:var(--c-primary)}
.detail-nav-btn--disabled{color:#cbd2da;cursor:default;pointer-events:none}

/* 侧栏联系卡 */
.detail-side .detail-card h3{margin-bottom:14px}
.contact-row{
  display:flex;justify-content:space-between;align-items:center;gap:8px;
  padding:10px 0;border-bottom:1px dashed var(--c-border-soft);
}
.contact-row:last-child{border:0;padding-bottom:0}
.contact-row-label{font-size:12px;color:var(--c-text);flex-shrink:0}
.contact-row-value{font-size:13.5px;color:var(--c-heading);text-align:right;display:flex;align-items:center;gap:6px}
.contact-row-value a{color:var(--c-primary-dark)}
.btn-copy{
  background:#f3f4f6;border:0;width:22px;height:22px;border-radius:4px;
  cursor:pointer;font-size:11px;color:#6b7280;line-height:1;
  display:inline-flex;align-items:center;justify-content:center;
  transition:all .2s;
}
.btn-copy:hover{background:var(--c-primary);color:#fff}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px 3px 8px;border-radius:4px;
  font-size:11.5px;font-weight:600;letter-spacing:.01em;line-height:1.4;
  border:1px solid var(--c-border-soft);background:#fff;color:var(--c-heading);
  white-space:nowrap;
}
.badge::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:#9ca3af;flex-shrink:0;
}
.badge--ok{color:#15803d;border-color:#bbf7d0;background:#f0fdf4}
.badge--ok::before{background:#22c55e;box-shadow:0 0 0 2px rgba(34,197,94,.18)}
.badge--warn{color:#92400e;border-color:#fde68a;background:#fffbeb}
.badge--warn::before{background:#f59e0b;box-shadow:0 0 0 2px rgba(245,158,11,.18)}
.badge--danger{color:#991b1b;border-color:#fecaca;background:#fef2f2}
.badge--danger::before{background:#ef4444;box-shadow:0 0 0 2px rgba(239,68,68,.18)}
.badge--muted{color:#4b5563;border-color:var(--c-border-soft);background:#f9fafb}
.badge--muted::before{background:#9ca3af}
.badge--info{color:#1e40af;border-color:#bfdbfe;background:#eff6ff}
.badge--info::before{background:#3b82f6;box-shadow:0 0 0 2px rgba(59,130,246,.18)}

/* 行 hover */
.admin-table tbody tr{transition:background .15s}
.admin-table tbody tr:hover{background:#f9fafb}
.admin-table tbody tr.unread:hover{background:#fef3c7}

/* ============ 后台 - 主页编辑器 v2 ============ */

/* 顶部介绍条 */
.hp-intro{
  display:flex;justify-content:space-between;align-items:center;gap:20px;
  background:linear-gradient(135deg,#1B4791 0%,#102E5E 100%);
  color:#fff;border-radius:10px;padding:20px 24px;margin-bottom:18px;
  box-shadow:0 4px 14px rgba(27,71,145,.25);
}
.hp-intro h2{color:#fff;margin:0 0 6px;font-size:18px}
.hp-intro p{color:rgba(255,255,255,.88);font-size:13px;margin:0;line-height:1.6}
.hp-intro .btn-row{background:#fff;color:var(--c-primary-dark);border-color:#fff}
.hp-intro .btn-row:hover{background:var(--c-primary-dark);color:#fff;border-color:var(--c-primary-dark)}

/* 主容器 */
.homepage-edit{display:grid;grid-template-columns:240px 1fr;gap:20px;align-items:start}
@media (max-width:960px){.homepage-edit{grid-template-columns:1fr}}

/* 左侧版块导航 */
.hp-side{
  background:#fff;border-radius:10px;padding:18px 14px;
  border:1px solid var(--c-border-soft);box-shadow:0 2px 8px rgba(15,20,30,.04);
  position:sticky;top:80px;font-size:13px;max-height:calc(100vh - 100px);overflow-y:auto;
}
.hp-side h3{
  font-size:11px;color:var(--c-text);letter-spacing:.1em;text-transform:uppercase;
  margin:0 0 8px;padding:0 8px;font-weight:600;
}
.hp-nav{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:2px}
.hp-nav li a{
  display:flex;align-items:center;gap:10px;
  padding:9px 10px;border-radius:6px;color:#374151;text-decoration:none;
  transition:all .2s;line-height:1.3;
}
.hp-nav li a:hover{background:var(--c-bg-soft);color:var(--c-primary-dark)}
.hp-nav li a.is-active{
  background:rgba(27,71,145,.1);color:var(--c-primary-dark);font-weight:600;
}
.hp-nav-num{
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
  width:22px;height:22px;border-radius:6px;
  background:#f1f5f9;color:#64748b;font-size:11px;font-weight:700;
  font-family:Menlo,Consolas,monospace;
}
.hp-nav li a.is-active .hp-nav-num{background:var(--c-primary);color:#fff}
.hp-nav-icon{font-size:14px;flex-shrink:0}
.hp-nav-title{flex:1}

.hp-tips{
  margin-top:24px;padding:14px 12px;background:#fffbeb;border-radius:8px;
  border:1px solid #fcd34d;font-size:11.5px;color:#92400e;line-height:1.7;
}
.hp-tips strong{display:block;margin-bottom:6px;color:#78350f}
.hp-tips ul{margin:0;padding-left:18px}
.hp-tips ul li{padding:1px 0}

/* 右侧表单 */
.hp-form{display:flex;flex-direction:column;gap:18px;padding-bottom:20px}

/* 区块卡片 */
.hp-section{
  background:#fff;border-radius:12px;
  border:1px solid var(--c-border-soft);box-shadow:0 2px 8px rgba(15,20,30,.04);
  scroll-margin-top:80px;overflow:hidden;
}
.hp-section--global{border-color:#fbbf24;background:#fffdf5}

/* 区块头 */
.hp-section-head{
  display:flex;align-items:flex-start;gap:16px;
  padding:20px 24px;background:linear-gradient(180deg,#fafbfc,#f6f8fa);
  border-bottom:1px solid var(--c-border-soft);
}
.hp-section--global .hp-section-head{
  background:linear-gradient(180deg,#fffbeb,#fef3c7);border-bottom-color:#fbbf24;
}
.hp-section-num{
  flex-shrink:0;width:42px;height:42px;border-radius:10px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:14px;font-family:Menlo,Consolas,monospace;
  letter-spacing:-.02em;box-shadow:0 4px 10px rgba(27,71,145,.3);
}
.hp-section--global .hp-section-num{
  background:linear-gradient(135deg,#fbbf24,#d97706);box-shadow:0 4px 10px rgba(217,119,6,.3);
  font-size:18px;
}
.hp-section-meta{flex:1;min-width:0}
.hp-section-meta h2{
  font-size:18px;margin:0 0 4px;color:var(--c-heading);
  display:flex;align-items:center;gap:8px;
}
.hp-section-icon{font-size:20px}
.hp-section-desc{color:var(--c-text);font-size:12.5px;margin:0;line-height:1.6}
.hp-section-preview{
  flex-shrink:0;padding:6px 12px;font-size:12px;font-weight:600;
  background:#fff;color:var(--c-primary-dark);
  border:1px solid var(--c-border);border-radius:6px;text-decoration:none;
  transition:all .2s;
}
.hp-section-preview:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}

/* 区块内分组 */
.hp-group-title{
  font-size:12px;font-weight:700;color:var(--c-primary-dark);
  letter-spacing:.05em;text-transform:uppercase;
  padding:18px 24px 8px;border-top:1px dashed var(--c-border-soft);
  background:#fafbfc;
}
.hp-section-head + .hp-group .hp-group-title,
.hp-section-head + .hp-group-title{border-top:0}
.hp-group{padding:16px 24px 20px;background:#fff}
.hp-group + .hp-group{padding-top:0}

/* 字段 */
.hp-field{margin-bottom:16px}
.hp-field:last-child{margin-bottom:0}
.hp-field label{
  display:flex;justify-content:space-between;align-items:center;gap:8px;
  font-size:13px;color:#374151;font-weight:600;margin-bottom:6px;
}
.hp-field .hp-key{
  font-size:11px;color:#9ca3af;font-weight:400;font-family:Menlo,Consolas,monospace;
  background:#f3f4f6;padding:2px 7px;border-radius:3px;
}
.hp-input{
  width:100%;padding:9px 12px;font-family:inherit;font-size:13.5px;
  color:var(--c-heading);background:#fff;
  border:1px solid var(--c-border);border-radius:6px;transition:all .2s;
}
.hp-input:focus{outline:0;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,71,145,.12)}
.hp-textarea{resize:vertical;min-height:64px;line-height:1.6}

/* 图片字段 */
.hp-image-field{display:flex;gap:14px;align-items:flex-start;flex-wrap:wrap}
.hp-image-preview{
  width:180px;height:100px;border-radius:8px;background:#f3f4f6;
  border:1px solid var(--c-border);overflow:hidden;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background-image:
    linear-gradient(45deg,#e5e7eb 25%,transparent 25%),
    linear-gradient(-45deg,#e5e7eb 25%,transparent 25%),
    linear-gradient(45deg,transparent 75%,#e5e7eb 75%),
    linear-gradient(-45deg,transparent 75%,#e5e7eb 75%);
  background-size:16px 16px;
  background-position:0 0,0 8px,8px -8px,-8px 0;
}
.hp-image-preview img{max-width:100%;max-height:100%;object-fit:contain;display:block}
.hp-image-actions{flex:1;min-width:240px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}

/* 动态卡片列表 (list 字段) */
.hp-list{display:flex;flex-direction:column;gap:10px}
.hp-list-rows{display:flex;flex-direction:column;gap:10px}
.hp-list-row{
  background:#fafbfc;border:1px solid var(--c-border-soft);border-radius:8px;
  overflow:hidden;
}
.hp-list-row-head{
  display:flex;justify-content:space-between;align-items:center;
  padding:8px 14px;background:#f1f5f9;border-bottom:1px solid var(--c-border-soft);
}
.hp-list-row-label{font-size:12.5px;font-weight:600;color:var(--c-heading);letter-spacing:.02em}
.hp-list-del{
  background:#fff;border:1px solid #fca5a5;color:#c0392b;
  width:26px;height:26px;border-radius:5px;cursor:pointer;
  font-size:13px;display:flex;align-items:center;justify-content:center;
  transition:all .2s;
}
.hp-list-del:hover{background:#c0392b;color:#fff;border-color:#c0392b}
.hp-list-row-body{padding:14px}
.hp-list-field{margin-bottom:10px}
.hp-list-field:last-child{margin-bottom:0}
.hp-list-field label{
  display:block;font-size:12px;color:#475569;font-weight:600;margin-bottom:5px;
}
.hp-list-add{
  align-self:flex-start;padding:8px 16px;font-size:13px;font-weight:600;
  background:#fff;color:var(--c-primary);border:1px dashed var(--c-primary);
  border-radius:6px;cursor:pointer;transition:all .2s;font-family:inherit;
}
.hp-list-add:hover{background:var(--c-primary);color:#fff;border-style:solid}
.hp-list-tpl{display:none}
.hp-image-actions .hp-url{margin-left:0;flex:1;min-width:140px;font-size:12px}
.hp-upload-input{position:absolute;width:1px;height:1px;opacity:0;overflow:hidden}

/* 底部 sticky 操作栏 */
.hp-actions{
  display:flex;gap:12px;justify-content:flex-end;align-items:center;
  background:#fff;padding:14px 20px;border-radius:10px;
  border:1px solid var(--c-border-soft);box-shadow:0 -4px 12px rgba(15,20,30,.06);
  position:sticky;bottom:16px;z-index:5;
}
.hp-actions .btn-save{
  padding:10px 28px;font-size:13.5px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark));
  box-shadow:0 4px 14px rgba(27,71,145,.35);
}
.hp-actions .btn-save:hover{box-shadow:0 8px 22px rgba(27,71,145,.45)}

/* ============================================================
   14. 入场动画 - scroll reveal
   ============================================================ */
@media (prefers-reduced-motion: no-preference) {
  [data-reveal]{
    opacity:0;transform:translateY(40px);
    transition:opacity .9s cubic-bezier(.2,.7,.2,1), transform .9s cubic-bezier(.2,.7,.2,1);
    will-change:opacity,transform;
  }
  [data-reveal="left"]  { transform:translateX(-50px) }
  [data-reveal="right"] { transform:translateX(50px) }
  [data-reveal="zoom"]  { transform:scale(.92) }
  [data-reveal="fade"]  { transform:none }

  [data-reveal].is-revealed{opacity:1;transform:none}

  /* 子元素阶梯延迟 */
  [data-reveal-stagger] > *{
    opacity:0;transform:translateY(30px);
    transition:opacity .8s cubic-bezier(.2,.7,.2,1), transform .8s cubic-bezier(.2,.7,.2,1);
  }
  [data-reveal-stagger].is-revealed > *:nth-child(1){transition-delay:.05s;opacity:1;transform:none}
  [data-reveal-stagger].is-revealed > *:nth-child(2){transition-delay:.15s;opacity:1;transform:none}
  [data-reveal-stagger].is-revealed > *:nth-child(3){transition-delay:.25s;opacity:1;transform:none}
  [data-reveal-stagger].is-revealed > *:nth-child(4){transition-delay:.35s;opacity:1;transform:none}
  [data-reveal-stagger].is-revealed > *:nth-child(5){transition-delay:.45s;opacity:1;transform:none}
  [data-reveal-stagger].is-revealed > *:nth-child(6){transition-delay:.55s;opacity:1;transform:none}
  [data-reveal-stagger].is-revealed > *:nth-child(7){transition-delay:.65s;opacity:1;transform:none}
  [data-reveal-stagger].is-revealed > *:nth-child(8){transition-delay:.75s;opacity:1;transform:none}
}

/* Hero 缓慢 Ken-Burns 效果 */
@keyframes heroZoom{
  0%{transform:scale(1.04) translateX(0)}
  50%{transform:scale(1.10) translateX(-1%)}
  100%{transform:scale(1.04) translateX(0)}
}
.hero-slide.active{animation:heroZoom 12s ease-in-out infinite}

/* Hero 文字入场 */
.hero-inner h1,.hero-inner p,.hero-inner .hero-cta{
  opacity:0;animation:heroFadeUp .9s .25s forwards cubic-bezier(.2,.7,.2,1);
}
.hero-inner p     { animation-delay:.45s }
.hero-inner .hero-cta{ animation-delay:.65s }
@keyframes heroFadeUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:none}}

/* 卡片 hover 微动效（加强已有） */
.card,.news-card,.partner-card{transition:transform .35s cubic-bezier(.2,.7,.2,1), box-shadow .35s, border-color .25s}
.card:hover,.news-card:hover{transform:translateY(-6px) scale(1.01)}
.biz-card:hover .biz-img{background:rgba(27,71,145,.12)}
.biz-card .biz-img img{transition:transform .4s cubic-bezier(.2,.7,.2,1)}
.biz-card:hover .biz-img img{transform:scale(1.08) rotate(-3deg)}

/* 按钮 ripple */
.btn{position:relative;overflow:hidden}
.btn::after{
  content:"";position:absolute;inset:0;border-radius:inherit;
  background:radial-gradient(circle at var(--x,50%) var(--y,50%),rgba(255,255,255,.4) 0%,transparent 60%);
  opacity:0;transition:opacity .5s;pointer-events:none;
}
.btn:hover::after{opacity:1}
.btn-primary{box-shadow:0 4px 14px rgba(27,71,145,.3)}
.btn-primary:hover{box-shadow:0 8px 24px rgba(27,71,145,.45)}

/* Section eyebrow 闪入 */
.eyebrow{display:inline-block;position:relative;padding-left:32px}
.eyebrow::before{
  content:"";position:absolute;left:0;top:50%;width:24px;height:2px;
  background:var(--c-accent);transform:translateY(-50%);
  animation:eyebrowGrow 1s ease forwards;transform-origin:left;
}
[data-reveal] .eyebrow::before{animation:none;transform:translateY(-50%) scaleX(0)}
[data-reveal].is-revealed .eyebrow::before{animation:eyebrowGrow .8s .2s ease forwards}
@keyframes eyebrowGrow{from{transform:translateY(-50%) scaleX(0)}to{transform:translateY(-50%) scaleX(1)}}

/* 数字滚动 spotlight */
.stat-num{display:inline-block;background:linear-gradient(135deg,var(--c-heading) 0%, var(--c-primary) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}

/* 链接下划线滑入 */
.nav-link{overflow:hidden}
.nav-link::before{
  content:"";position:absolute;left:50%;right:50%;bottom:4px;height:2px;
  background:var(--c-primary);transition:left .3s ease,right .3s ease;border-radius:1px;
}
.nav-link:hover::before{left:14px;right:14px}
.nav-link.active::after{display:none}
.nav-link.active::before{left:14px;right:14px}

/* Accordion 平滑展开 */
.accordion details summary{transition:background .25s,color .25s}
.accordion details summary:hover{background:rgba(27,71,145,.04);color:var(--c-primary-dark)}
.accordion .acc-body{animation:accSlideIn .4s ease}
@keyframes accSlideIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}

/* 滚动条美化 */
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#f3f5f8}
::-webkit-scrollbar-thumb{background:#c5cdd6;border-radius:5px}
::-webkit-scrollbar-thumb:hover{background:var(--c-primary)}

/* ============================================================
   15. 产品中心 - 类别选择卡 (landing)
   ============================================================ */
.product-cat-card{
  display:flex;flex-direction:column;overflow:hidden;height:100%;
  transition:transform .35s cubic-bezier(.2,.7,.2,1), box-shadow .35s;
}
.product-cat-card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(15,20,30,.15)}
.product-cat-img{
  aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;
  position:relative;overflow:hidden;
}
.product-cat-img::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(circle at 30% 30%,rgba(255,255,255,.15),transparent 60%);
}
.product-cat-card .card-body{padding:28px 32px 32px}

/* ============================================================
   16. 电缆料目录 (cable-compounds.php)
   ============================================================ */
.cable-cat{
  margin-bottom:48px;scroll-margin-top:120px;
}
.cable-cat-head{
  display:flex;align-items:center;gap:16px;margin-bottom:24px;padding-bottom:18px;
  border-bottom:2px solid var(--c-primary);
}
.cable-cat-num{
  flex-shrink:0;width:48px;height:48px;border-radius:10px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:18px;font-family:Menlo,Consolas,monospace;
  box-shadow:0 6px 16px rgba(27,71,145,.3);
}
.cable-cat-head h2{font-size:24px;color:var(--c-heading);margin:0;font-weight:700}
.cable-cat-en{font-size:12.5px;color:var(--c-text);margin:2px 0 0;letter-spacing:.02em}

.cable-subgroup{
  background:#fff;border-radius:10px;border:1px solid var(--c-border-soft);
  box-shadow:0 2px 8px rgba(15,20,30,.04);overflow:hidden;margin-bottom:18px;
}
.cable-sub-title{
  padding:16px 22px;margin:0;font-size:15px;font-weight:700;color:var(--c-primary-dark);
  background:linear-gradient(180deg,rgba(27,71,145,.06),rgba(27,71,145,.02));
  border-bottom:1px solid var(--c-border-soft);
  display:flex;align-items:baseline;gap:12px;flex-wrap:wrap;
}
.cable-sub-en{font-size:11px;color:var(--c-text);font-weight:500;letter-spacing:.02em}

/* B2B 工业参数表格 - linttop 风 (紧凑、监理、易扫读) */
.cable-prod-table{
  width:100%;border-collapse:collapse;font-size:13px;table-layout:auto;
  border:1px solid #cbd5e1;background:#fff;
}
.cable-prod-table th{
  padding:12px 14px;text-align:left;
  background:linear-gradient(180deg,#1B4791,#102E5E);color:#fff;
  font-weight:700;font-size:11px;letter-spacing:.08em;text-transform:uppercase;
  border-right:1px solid rgba(255,255,255,.15);border-bottom:0;
  vertical-align:middle;
}
.cable-prod-table th:last-child{border-right:0}
.cable-prod-table td{
  padding:13px 14px;border-bottom:1px solid #e5e7eb;border-right:1px solid #f1f5f9;
  vertical-align:top;font-size:13px;line-height:1.65;color:#1f2937;
}
.cable-prod-table td:last-child{border-right:0}
.cable-prod-table tbody tr:last-child td{border-bottom:0}
.cable-prod-table tbody tr:nth-child(even) td{background:#fafbfc}
.cable-prod-table tbody tr:hover td{background:#fef9ec}

.part-no{
  display:inline-block;font-family:Menlo,Consolas,monospace;font-size:12.5px;font-weight:700;
  background:#fef3c7;color:#854d0e;
  padding:5px 10px;border-radius:3px;letter-spacing:.02em;line-height:1.4;
  word-break:break-word;border-left:3px solid var(--c-accent);
}
.std-tag{
  display:inline-block;font-size:10.5px;font-family:Menlo,Consolas,monospace;
  background:#fff;color:#1B4791;font-weight:600;
  padding:3px 9px;border-radius:3px;margin:2px 4px 2px 0;line-height:1.6;
  border:1px solid #1B4791;
}

@media (max-width:760px){
  .cable-prod-table th, .cable-prod-table td{padding:10px 12px;font-size:12px}
  .part-no{font-size:11px}
  .cable-cat-head h2{font-size:18px}
  .cable-cat-num{width:40px;height:40px;font-size:16px}
}

/* ============================================================
   17. 塑料原材料 (raw-materials.php)
   ============================================================ */
.raw-mat-layout{
  display:grid;grid-template-columns:280px 1fr;gap:20px;align-items:start;
}
@media (max-width:960px){.raw-mat-layout{grid-template-columns:1fr}}

/* 左侧分类树 - 高级简约风 (纯排版 + 数字编号 + 橙色 active 左竖线) */
.raw-mat-tree{
  background:#fff;border-radius:0;padding:0;
  border:0;box-shadow:none;border-right:1px solid var(--c-border-soft);
  position:sticky;top:120px;max-height:calc(100vh - 140px);overflow-y:auto;
  padding-right:24px;
}
.raw-mat-tree h3{
  font-size:10.5px;color:#94a3b8;letter-spacing:.18em;text-transform:uppercase;
  margin:0 0 20px;padding:0;font-weight:700;
}
.tree-group{margin-bottom:4px}
.tree-top{
  display:flex;align-items:baseline;gap:12px;
  padding:12px 0 8px;
  color:var(--c-heading);font-weight:700;font-size:14px;letter-spacing:-.005em;
  border-top:1px solid var(--c-border-soft);
}
.tree-group:first-child .tree-top{border-top:0;padding-top:0}
.tree-top-num{
  font-family:Menlo,Consolas,monospace;font-size:11px;
  color:var(--c-accent);font-weight:700;letter-spacing:.05em;flex-shrink:0;
}
.tree-top-label{flex:1;line-height:1.3}

.tree-sub{list-style:none;padding:0;margin:0 0 6px;display:flex;flex-direction:column}
.tree-sub li{position:relative}
.tree-sub li a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:9px 0 9px 14px;
  font-size:13px;color:#475569;text-decoration:none;
  position:relative;transition:color .2s, padding .25s;
  line-height:1.4;
}
.tree-sub li a::before{
  content:"";position:absolute;left:0;top:50%;height:0;width:2px;
  background:var(--c-accent);transform:translateY(-50%);
  transition:height .25s cubic-bezier(.2,.7,.2,1);
}
.tree-sub li a:hover{color:var(--c-heading);padding-left:18px}
.tree-sub li a:hover::before{height:14px}
.tree-sub li a.is-active{
  color:var(--c-primary);font-weight:600;padding-left:18px;
}
.tree-sub li a.is-active::before{height:20px}
.tree-sub-label{flex:1;min-width:0}
.tree-sub-count{
  font-size:11px;font-family:Menlo,Consolas,monospace;
  color:#cbd5e1;font-weight:500;flex-shrink:0;
}
.tree-sub li a.is-active .tree-sub-count{color:var(--c-accent);font-weight:700}

/* 右侧 PDF 列表 */
.raw-mat-content{min-width:0}
.raw-mat-header{
  display:flex;justify-content:space-between;align-items:center;
  padding:14px 20px;background:#fff;border-radius:10px;
  border:1px solid var(--c-border-soft);box-shadow:0 2px 8px rgba(15,20,30,.04);
  margin-bottom:16px;flex-wrap:wrap;gap:8px;
}
.raw-mat-crumb{font-size:14px;color:var(--c-text);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.raw-mat-crumb .sep{opacity:.4}
.raw-mat-crumb strong{color:var(--c-heading);font-size:16px}
.raw-mat-count{
  font-size:12px;color:var(--c-primary-dark);font-weight:600;
  background:rgba(27,71,145,.1);padding:4px 12px;border-radius:999px;
}

/* PDF 卡片 - 首页缩略图 + 标题，整卡可点 */
.pdf-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:18px}
.pdf-card-v2{
  display:flex;flex-direction:column;
  background:#fff;border-radius:10px;
  border:1px solid var(--c-border-soft);text-decoration:none;
  overflow:hidden;
  transition:transform .25s, box-shadow .25s, border-color .25s;
}
.pdf-card-v2:hover{
  transform:translateY(-4px);border-color:#fca5a5;
  box-shadow:0 14px 28px rgba(192,57,43,.15);
}

/* 缩略图区 - 像书的封面 */
.pdf-card-v2-thumb{
  width:100%;aspect-ratio:3/4;
  background:linear-gradient(180deg,#f3f4f6,#e5e7eb);
  display:flex;align-items:center;justify-content:center;overflow:hidden;
  border-bottom:1px solid var(--c-border-soft);
}
.pdf-card-v2.has-thumb .pdf-card-v2-thumb{
  background:#fff;
}
.pdf-card-v2-thumb img{
  width:100%;height:100%;object-fit:cover;object-position:top center;
  transition:transform .35s cubic-bezier(.2,.7,.2,1);
}
.pdf-card-v2:hover .pdf-card-v2-thumb img{transform:scale(1.04)}
.pdf-card-v2-thumb svg{
  transition:transform .3s cubic-bezier(.2,.7,.2,1);
  filter:drop-shadow(0 4px 8px rgba(192,57,43,.18));
}
.pdf-card-v2:hover .pdf-card-v2-thumb svg{transform:scale(1.08) rotate(-3deg)}

/* 标题 + 大小 */
.pdf-card-v2-title{
  font-weight:600;color:var(--c-heading);font-size:13px;line-height:1.45;
  word-break:break-word;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  padding:14px 14px 4px;min-height:38px;
}
.pdf-card-v2-meta{
  font-size:11px;color:#991b1b;
  padding:0 14px 14px;
}
.pdf-card-v2-meta::before{
  content:"";display:inline-block;width:6px;height:6px;border-radius:50%;
  background:#c0392b;margin-right:6px;vertical-align:middle;
}

/* PDF 内嵌网页查看器 */
.pdf-viewer{
  background:#fff;border-radius:10px;border:1px solid var(--c-border-soft);
  overflow:hidden;box-shadow:0 2px 8px rgba(15,20,30,.04);
}
.pdf-viewer-bar{
  display:flex;align-items:center;gap:10px;padding:12px 16px;
  background:linear-gradient(180deg,#fafbfc,#f3f4f6);
  border-bottom:1px solid var(--c-border-soft);flex-wrap:wrap;
}
.pdf-viewer-title{
  flex:1;font-size:13px;font-weight:600;color:var(--c-heading);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0;
}
.pdf-viewer-frame{
  width:100%;height:calc(100vh - 240px);min-height:600px;background:#525659;
  position:relative;
}
.pdf-viewer-frame iframe{
  position:absolute;inset:0;width:100%;height:100%;border:0;
}
@media (max-width:760px){
  .pdf-viewer-frame{height:70vh;min-height:480px}
  .pdf-viewer-title{order:3;width:100%;text-align:center;font-size:12px}
}

/* ============================================================
   18. 工具类
   ============================================================ */
.text-center{text-align:center}
.mt-8{margin-top:8px}
.mt-16{margin-top:16px}
.mt-24{margin-top:24px}
.mt-32{margin-top:32px}
.mt-48{margin-top:48px}
.mb-0{margin-bottom:0}
.muted{color:var(--c-text)}
.divider{height:1px;background:var(--c-border-soft);margin:48px 0}

/* ============================================================
   19. 右侧悬浮工具栏（电话 / 邮箱 / 微信 / 返回顶部）
   ============================================================ */
.float-dock{
  position:fixed;right:20px;bottom:24vh;z-index:90;
  display:flex;flex-direction:column;gap:10px;
}
.float-btn{
  position:relative;display:flex;align-items:center;justify-content:center;
  width:48px;height:48px;border-radius:50%;
  background:#fff;color:var(--c-primary);
  border:1px solid var(--c-border-soft);
  box-shadow:0 4px 14px rgba(27,71,145,.10),0 1px 3px rgba(0,0,0,.04);
  cursor:pointer;transition:all .25s ease;text-decoration:none;
}
.float-btn:hover{
  background:var(--c-primary);color:#fff;
  border-color:var(--c-primary);
  transform:translateX(-2px);
  box-shadow:0 6px 22px rgba(27,71,145,.28);
}
.float-btn--mail:hover{background:var(--c-accent);border-color:var(--c-accent)}
.float-btn--wechat:hover{background:#1aad19;border-color:#1aad19}
.float-btn--top{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.float-btn--top:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark)}
.float-btn.is-hidden{opacity:0;transform:translateY(20px) scale(.6);pointer-events:none}
.float-btn[hidden]{display:none}
.float-tip{
  position:absolute;right:calc(100% + 12px);top:50%;transform:translateY(-50%);
  background:#1d2733;color:#fff;font-size:12.5px;line-height:1.55;
  padding:10px 14px;border-radius:6px;white-space:nowrap;
  box-shadow:0 8px 24px rgba(0,0,0,.18);
  opacity:0;pointer-events:none;transition:opacity .2s ease;
}
.float-tip::after{
  content:"";position:absolute;left:100%;top:50%;transform:translateY(-50%);
  border:5px solid transparent;border-left-color:#1d2733;
}
.float-tip strong{color:var(--c-accent);font-weight:700}
.float-btn:hover .float-tip{opacity:1}

@media (max-width:760px){
  .float-dock{right:12px;bottom:14vh;gap:8px}
  .float-btn{width:42px;height:42px}
  .float-tip{display:none}
}

/* 应用领域 - 8 张行业图卡片（图片背景 + 渐变遮罩 + 标题） */
.apps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.apps-card{
  position:relative;height:280px;border-radius:8px;overflow:hidden;
  background-size:cover;background-position:center;
  box-shadow:0 4px 14px rgba(0,0,0,.06);
  transition:transform .35s ease,box-shadow .35s ease;cursor:default;
}
.apps-card::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(0,30,80,0) 30%,rgba(0,20,60,.55) 65%,rgba(8,18,42,.92) 100%);
  transition:opacity .35s ease;
}
.apps-card:hover{transform:translateY(-4px);box-shadow:0 14px 40px rgba(0,30,80,.18)}
.apps-card:hover::before{background:linear-gradient(180deg,rgba(27,71,145,.30) 0%,rgba(8,18,42,.92) 100%)}
.apps-card-overlay{
  position:absolute;left:0;right:0;bottom:0;padding:22px 22px 20px;
  color:#fff;z-index:1;
}
.apps-card-num{
  display:inline-block;font-size:11px;letter-spacing:.18em;font-weight:700;
  color:var(--c-accent);margin-bottom:6px;font-family:'Inter',monospace;
}
.apps-card-title{
  margin:0;font-size:17px;font-weight:700;line-height:1.35;color:#fff;
  text-shadow:0 2px 8px rgba(0,0,0,.4);
}
@media (max-width:1100px){.apps-grid{grid-template-columns:repeat(3,1fr)}}
@media (max-width:760px){.apps-grid{grid-template-columns:repeat(2,1fr);gap:12px}.apps-card{height:200px}.apps-card-title{font-size:15px}}
@media (max-width:480px){.apps-card{height:160px}}

/* 后台：电缆料探索器（左类别树 / 右牌号表） */
.cp-explorer{display:grid;grid-template-columns:340px 1fr;gap:0;min-height:calc(100vh - 140px);background:#fff}
.cp-tree{background:#f8fafc;border-right:1px solid var(--c-border-soft);padding:0;overflow-y:auto}
.cp-tree-head{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;border-bottom:1px solid var(--c-border-soft);background:#fff}
.cp-tree-head strong{display:block;font-size:14px;color:var(--c-heading)}
.cp-tree-head small{display:block;font-size:11px;color:#888;margin-top:2px}
.cp-tree-add{padding:5px 10px;background:var(--c-primary);color:#fff;border-radius:4px;font-size:12px;font-weight:600;text-decoration:none}
.cp-tree-add:hover{background:var(--c-primary-dark);color:#fff}
.cp-tree-all{display:flex;justify-content:space-between;align-items:center;padding:10px 16px;background:#fff;border-bottom:1px solid var(--c-border-soft);font-size:13.5px;font-weight:600;color:var(--c-heading);text-decoration:none}
.cp-tree-all.is-active{background:rgba(27,71,145,.08);color:var(--c-primary-dark);border-left:3px solid var(--c-primary);padding-left:13px}
.cp-tree-all:hover{background:#eef2f7;color:var(--c-primary)}

.cp-cat-list,.cp-sub-list{list-style:none;margin:0;padding:0}
.cp-cat-item{border-bottom:1px solid var(--c-border-soft)}
.cp-cat-row,.cp-sub-row{display:flex;align-items:center;gap:6px;padding:0;transition:background var(--t)}
.cp-cat-row:hover,.cp-sub-row:hover{background:#eef2f7}
.cp-cat-row.is-active,.cp-sub-row.is-active{background:rgba(27,71,145,.08);border-left:3px solid var(--c-primary)}
.cp-cat-link,.cp-sub-link{flex:1;display:flex;align-items:center;gap:6px;padding:10px 12px;font-size:13.5px;color:var(--c-heading);text-decoration:none;min-width:0}
.cp-cat-row.is-active .cp-cat-link,.cp-sub-row.is-active .cp-sub-link{padding-left:9px}
.cp-cat-arrow{font-size:10px;color:#999;width:12px;flex-shrink:0}
.cp-cat-num{font-family:monospace;font-size:11px;color:#888;flex-shrink:0}
.cp-cat-name,.cp-sub-link>span:first-child{flex:1;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cp-cat-name.is-disabled,.cp-sub-link.is-disabled{color:#bbb;font-weight:400}
.cp-count{font-size:11px;color:#888;background:#e5e7eb;padding:1px 8px;border-radius:9px;font-weight:500;font-family:monospace;flex-shrink:0}
.cp-cat-row.is-active .cp-count,.cp-sub-row.is-active .cp-count{background:var(--c-primary);color:#fff}
.cp-row-actions{display:flex;gap:2px;opacity:0;transition:opacity var(--t);padding-right:8px}
.cp-cat-row:hover .cp-row-actions,.cp-sub-row:hover .cp-row-actions{opacity:1}
.cp-icon-btn{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:3px;background:transparent;border:0;color:#888;cursor:pointer;font-size:13px;text-decoration:none}
.cp-icon-btn:hover{background:#fff;color:var(--c-primary)}
.cp-icon-btn--danger:hover{background:#fee2e2;color:#dc2626}
.cp-sub-list{padding:0 0 6px 0}
.cp-sub-item .cp-sub-row{padding-left:32px;font-size:13px;font-weight:400}
.cp-sub-link{font-size:13px;padding:7px 12px;font-weight:500}
.cp-sub-add{display:block;margin:4px 16px 4px 32px;padding:6px 8px;border:1px dashed var(--c-border);border-radius:4px;font-size:12px;color:#888;text-align:center;text-decoration:none}
.cp-sub-add:hover{border-color:var(--c-primary);color:var(--c-primary);background:#fff}

.cp-inline-form{padding:14px 16px;background:#fff;border-bottom:1px solid var(--c-border-soft);margin:6px 12px;border-radius:6px;box-shadow:0 2px 8px rgba(0,0,0,.04)}
.cp-inline-form--nested{margin:8px 16px 8px 36px;padding:12px 14px;background:#fdfaf3;border:1px solid #f3e8c4;box-shadow:none}
.cp-inline-title{font-size:12px;font-weight:600;color:#666;margin-bottom:8px}
.cp-inline-form .hp-input{font-size:13px;padding:6px 10px;width:100%}
.cp-grid2{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.cp-inline-actions{display:flex;gap:6px;margin-top:10px}
.cp-inline-actions .btn-row{padding:6px 14px;font-size:12.5px}

.cp-tree-foot{padding:18px 16px;border-top:1px solid var(--c-border-soft);margin-top:auto}
.cp-tree-foot summary{cursor:pointer;font-size:12px;color:#888}
.cp-tree-foot .btn-row--danger{font-size:12px;padding:6px 12px;margin-top:4px}

/* 右侧主区 */
.cp-main{padding:18px 24px 32px;background:#fff;overflow-x:auto}
.cp-bread{display:flex;align-items:center;gap:8px;font-size:14px;color:#666;margin-bottom:14px;padding:6px 0}
.cp-bread a{color:var(--c-primary);text-decoration:none;font-weight:600}
.cp-bread a:hover{text-decoration:underline}
.cp-bread-sep{color:#bbb}
.cp-bread-count{margin-left:auto;font-size:12px;color:#888;background:#f3f4f6;padding:2px 10px;border-radius:9px}

.cp-search{display:flex;gap:8px;align-items:center;margin-bottom:14px;padding:8px 0}
.cp-search input[type=search]{flex:1;padding:8px 12px;border:1px solid var(--c-border);border-radius:5px;font-size:13.5px;background:#fff}
.cp-search input[type=search]:focus{border-color:var(--c-primary);outline:none;box-shadow:0 0 0 3px rgba(27,71,145,.10)}
.cp-table-wrap{border:1px solid var(--c-border-soft);border-radius:6px;overflow:hidden}

@media (max-width:1100px){
  .cp-explorer{grid-template-columns:280px 1fr}
  .cp-main{padding:14px 16px}
}
@media (max-width:760px){
  .cp-explorer{grid-template-columns:1fr;grid-template-rows:auto auto}
  .cp-tree{border-right:0;border-bottom:1px solid var(--c-border-soft);max-height:300px}
}

/* 后台：塑料原材料 PDF 上传区 + PDF 卡片网格 */
.rm-upload{margin-bottom:20px}
.rm-upload-zone{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  padding:32px 20px;border:2px dashed var(--c-border);border-radius:8px;
  background:#fafbfc;color:#666;cursor:pointer;transition:all var(--t);text-align:center;
}
.rm-upload-zone:hover{border-color:var(--c-primary);background:#f0f4fb;color:var(--c-primary)}
.rm-upload-zone input[type=file]{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
.rm-upload-icon{font-size:28px}
.rm-upload-text{font-size:14px;font-weight:600}
.rm-upload-info{font-size:12px;color:#888}

.rm-pdf-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;margin-top:14px}
.rm-pdf-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-border-soft);border-radius:6px;overflow:hidden;
  transition:box-shadow var(--t),transform var(--t);
}
.rm-pdf-card:hover{box-shadow:0 4px 14px rgba(27,71,145,.10);transform:translateY(-2px)}
.rm-pdf-thumb{
  height:200px;background:#f3f4f6 center/cover no-repeat;display:flex;align-items:center;justify-content:center;
  border-bottom:1px solid var(--c-border-soft);position:relative;
}
.rm-pdf-icon{font-size:48px;opacity:.3}
.rm-pdf-body{padding:10px 12px 6px}
.rm-pdf-name{font-size:12.5px;font-weight:600;color:var(--c-heading);line-height:1.35;word-break:break-all;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:34px}
.rm-pdf-meta{font-size:11px;color:#888;margin-top:4px;font-family:monospace}
.rm-pdf-actions{display:flex;flex-wrap:wrap;gap:4px;padding:8px 12px 12px;border-top:1px solid var(--c-border-soft);background:#fafbfc}
.rm-pdf-actions .btn-row{padding:4px 10px;font-size:12px}
.rm-pdf-rename{position:relative}
.rm-pdf-rename[open] summary{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.rm-pdf-rename > form{position:absolute;left:0;top:100%;z-index:10;width:220px;padding:10px;background:#fff;border:1px solid var(--c-border);border-radius:6px;box-shadow:0 6px 24px rgba(0,0,0,.12)}

/* 后台 - 表单底部操作按钮（保存 / 取消 / 删除） */
.cp-form-actions{display:flex;gap:10px;align-items:center;padding:18px 0 8px;border-top:1px solid var(--c-border-soft);margin-top:8px}
.cp-btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 22px;font-size:13.5px;font-weight:600;font-family:inherit;line-height:1.4;
  border:1px solid var(--c-border);border-radius:5px;cursor:pointer;
  background:#fff;color:var(--c-heading);text-decoration:none;
  transition:all var(--t);
}
.cp-btn:hover{border-color:var(--c-primary);color:var(--c-primary);background:#f5f8fd}
.cp-btn--primary{background:var(--c-primary);border-color:var(--c-primary);color:#fff;box-shadow:0 1px 3px rgba(27,71,145,.18)}
.cp-btn--primary:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);color:#fff;box-shadow:0 4px 12px rgba(27,71,145,.28)}
.cp-btn--ghost{background:transparent;border-color:var(--c-border-soft);color:#6b7280}
.cp-btn--ghost:hover{background:#f3f4f6;border-color:var(--c-border);color:var(--c-heading)}
.cp-btn--danger{background:#fff;border-color:#fecaca;color:#dc2626}
.cp-btn--danger:hover{background:#fef2f2;border-color:#dc2626;color:#991b1b}