/* ===== 字体：整站苹方（PingFang SC，Windows 回退微软雅黑）；首屏大标题单独用阿里巴巴普惠体 ===== */
@font-face{
  font-family:'Alibaba PuHuiTi';
  src:url(https://cdn.jsdelivr.net/npm/@pinhai/ali-fonts/fonts/AlibabaPuHuiTi-3-115-Black.woff2) format("woff2");
  font-display:fallback;
}

/* ===== 全局重置（对齐 workbuddy main.css）===== */
*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:'PingFang SC',Microsoft YaHei,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;
  font-weight:400;line-height:1.6;color:#1a202c;background-color:#fff;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
a{text-decoration:none}
ul,ol{list-style:none;margin:0;padding:0}
li{margin:0;padding:0}
button{font-family:inherit;font-size:inherit;line-height:inherit;border:none;background:none;cursor:pointer;padding:0;margin:0}
img{max-width:100%;display:block}
/* 锚点平滑跳转 + 固定头部偏移补偿（导航/页脚链接共用） */
section[id]{scroll-margin-top:70px}

:root{
  --brand:#0fc468;
  --brand-light:#32e6b9;
  --purple:#6c4dff;
  --ink:#191a23;
  --text:#333;
  --text-mid:#666666;
  --text-light:#858699;
  --bg:#fff;
  --bg-soft:#f8f9fa;
  --bg-mint:#eef9f7;
  --border:#d2d3e0;
  --border-soft:#e5e5e5;
  --shadow-lg:0 24px 48px -12px rgba(25,26,35,.12);
  --shadow-md:0 8px 24px rgba(25,26,35,.08);
}

/* ===== 导航栏（.header 毛玻璃固定）===== */
.header{
  position:fixed;top:0;left:0;right:0;z-index:1100;
  background:#ffffffbf;backdrop-filter:blur(15px);-webkit-backdrop-filter:blur(15px);
  overflow:visible;transition:all .3s ease;display:flex;align-items:center;
  height:64px;
}
.header.scrolled{background:#ffffffe6;box-shadow:0 1px 0 var(--border-soft)}
.header-inner{
  width:100%;max-width:1200px;margin:0 auto;padding:0 32px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;cursor:pointer;flex-shrink:0}
.brand-logo{width:120px;height:24px;display:block;flex-shrink:0;max-width:none}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{
  background:transparent;color:var(--ink);padding:8px 16px;border-radius:8px;
  font-size:14px;font-weight:500;cursor:pointer;transition:all .3s ease;
  display:inline-flex;align-items:center;gap:8px;
}
.nav-link:hover{background:var(--bg-soft)}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}
.nav-toggle{display:none;flex-direction:column;gap:5px;padding:8px;cursor:pointer;background:none;border:none}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--ink);border-radius:2px;transition:.3s}

/* ===== Hero（.hero-banner 居中布局）===== */
.hero-banner{position:relative;width:100%;background:#fff;color:var(--ink);overflow:hidden}
.hero-banner::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,#0fc46800,#0fc46814 8%,#0fc4681f 12%,#0fc46800);
  pointer-events:none;
}
.hero-container{padding:140px 80px 80px;position:relative;z-index:2}
.hero-banner-main{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:40px;position:relative;width:100%}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;
  background:rgba(15,196,104,.1);border:1px solid rgba(15,196,104,.25);border-radius:999px;
  font-size:13px;color:var(--brand);font-weight:500;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--brand);animation:pulse 2s infinite}
.hero-title{
  font-family:'Alibaba PuHuiTi',sans-serif;font-weight:700;color:var(--ink);
  font-size:clamp(34px,5.2vw,64px);line-height:1.18;letter-spacing:-1px;text-align:center;max-width:900px;
}
/* ===== Hero 标题：流光动效（纯 CSS）===== */
.hero-title{transition:transform .3s ease}
.hero-title:hover{transform:translateY(-3px)}
/* “专家辅助办案”流光动效：渐变文字 + 背景位移动画（纯 CSS，无 JS/无额外元素） */
.hero-title .accent{
  background:linear-gradient(90deg,#1f9a7b 0%,#0fc468 30%,#4ec9a8 50%,#0fc468 70%,#1f9a7b 100%);
  background-size:200% 100%;
  -webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent;
  animation:hero-flow 4.6s linear infinite;
  transition:text-shadow .3s ease;
}
.hero-title:hover .accent{text-shadow:0 0 16px rgba(15,196,104,.22)}
@keyframes hero-flow{0%{background-position:0% 0}100%{background-position:200% 0}}
/* 尊重系统“减弱动态效果”设置 */
@media (prefers-reduced-motion:reduce){.hero-title .accent{animation:none}}
.hero-subtitle{
  font-size:clamp(13px,1.6vw,15px);color:var(--text-mid);line-height:1.7;text-align:center;
  max-width:640px;font-family:'PingFang SC',sans-serif;
}
.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:center}
.btn-primary{
  background:#1a1a1a;color:#fff;border:none;border-radius:999px;cursor:pointer;
  transition:all .3s ease;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:0 28px;height:48px;font-size:15px;font-weight:500;position:relative;overflow:hidden;
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(0,0,0,.2)}
.btn-primary svg{width:16px;height:16px}
.btn-outline{
  background:transparent;color:var(--ink);border:1.5px solid var(--border);border-radius:999px;cursor:pointer;
  transition:all .3s ease;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:0 28px;height:48px;font-size:15px;font-weight:500;position:relative;
}
.btn-outline:hover{border-color:var(--brand);color:var(--brand)}
.btn-outline svg{width:16px;height:16px}

/* hero 数据条 */
.hero-stats{display:flex;align-items:center;gap:48px;margin-top:8px;flex-wrap:wrap;justify-content:center}
.hero-stat{text-align:center}
.hero-stat-num{font-family:'PingFang SC',sans-serif;font-size:clamp(28px,3vw,40px);font-weight:700;color:var(--ink);line-height:1}
.hero-stat-num .u{font-size:.5em;color:var(--brand);margin-left:3px}
.hero-stat-label{font-size:13px;color:var(--text-light);margin-top:6px}
.hero-stat-divider{width:1px;height:36px;background:var(--border-soft)}

/* ===== 产品演示壳（.demo-shell 模拟工作台）===== */
.demo-section{background:var(--bg-soft);padding:clamp(60px,8vw,100px) 0;position:relative;overflow:hidden}
.demo-section .section-head{text-align:center;margin-bottom:48px;padding:0 32px}
.section-tag{
  display:inline-block;padding:5px 14px;background:rgba(15,196,104,.1);color:var(--brand);
  font-size:13px;font-weight:600;border-radius:999px;margin-bottom:16px;letter-spacing:.5px;
}
.section-title{
  font-family:'PingFang SC',sans-serif;font-size:clamp(26px,3.4vw,40px);font-weight:700;
  color:var(--ink);margin-bottom:14px;line-height:1.3;letter-spacing:-.5px;
}
.section-desc{font-size:clamp(14px,1.4vw,17px);color:var(--text-light);max-width:620px;margin:0 auto;line-height:1.7}

.demo-wrap{display:flex;justify-content:center;padding:0 24px}
.demo-shell-wrapper{position:relative;width:min(1024px,100%)}
.demo-shell{
  width:100%;height:560px;display:grid;grid-template-columns:240px minmax(0,1fr);
  grid-template-rows:40px minmax(0,1fr);overflow:hidden;
  background:#fff;border:1px solid var(--border-soft);border-radius:12px;
  box-shadow:var(--shadow-lg);
}
.demo-titlebar{
  grid-column:1/-1;height:40px;flex-shrink:0;display:flex;align-items:center;justify-content:space-between;
  padding:0 12px;border-bottom:1px solid var(--border-soft);background:#fafafa;position:relative;
}
.demo-dots{display:flex;gap:7px}
.demo-dots span{width:11px;height:11px;border-radius:50%;display:block}
.demo-dots .r{background:#ff5f57}.demo-dots .y{background:#febc2e}.demo-dots .g{background:#28c840}
.demo-title-text{font-size:12px;color:var(--text-light);font-weight:500}
.demo-titlebar-right{display:flex;align-items:center;gap:8px;font-size:11px;color:var(--text-light)}

/* 演示壳 - 侧边栏 */
.demo-sidebar{
  background:#f7f8fa;border-right:1px solid var(--border-soft);
  display:flex;flex-direction:column;overflow:hidden;
}
.demo-sidebar-head{padding:12px 14px;border-bottom:1px solid var(--border-soft);display:flex;align-items:center;justify-content:space-between}
.demo-sidebar-head h4{font-size:12px;color:var(--text-light);font-weight:600;letter-spacing:.5px}
.demo-new{width:18px;height:18px;border-radius:4px;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;line-height:1}
.demo-sidebar-list{flex:1;overflow-y:auto;padding:6px}
.demo-case{padding:8px 10px;border-radius:6px;margin-bottom:2px;cursor:pointer;transition:.2s;display:flex;flex-direction:column;gap:3px}
.demo-case:hover{background:#eef0f4}
.demo-case.active{background:#e7f5f1;border-left:2px solid var(--brand);padding-left:8px}
.demo-case-title{font-size:12.5px;color:var(--ink);font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.demo-case-meta{font-size:11px;color:var(--text-light);display:flex;align-items:center;gap:6px}
.demo-case-meta .status{display:inline-flex;align-items:center;gap:3px}
.demo-case-meta .status::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--brand)}
.demo-case-meta .status.done::before{background:var(--text-light)}

/* 演示壳 - 主区 */
.demo-main{min-width:0;min-height:0;display:flex;flex-direction:column;overflow:hidden;background:#fff}
.demo-main-head{padding:10px 16px;border-bottom:1px solid var(--border-soft);display:flex;align-items:center;justify-content:space-between;flex-shrink:0}
.demo-main-head .left{display:flex;align-items:center;gap:8px}
.demo-main-head .avatar{width:24px;height:24px;border-radius:50%;background:linear-gradient(135deg,#0fc468,#32e6b9);display:flex;align-items:center;justify-content:center;color:#fff;font-size:11px;font-weight:700;font-family:'PingFang SC',sans-serif}
.demo-main-head .name{font-size:13px;font-weight:600;color:var(--ink)}
.demo-main-head .role{font-size:11px;color:var(--text-light)}
.demo-main-head .right{font-size:11px;color:var(--text-light);display:flex;align-items:center;gap:4px}
.demo-main-body{flex:1;overflow-y:auto;padding:16px 20px;display:flex;flex-direction:column;gap:18px}

.demo-msg{display:flex;gap:10px;max-width:88%}
.demo-msg .ava{width:26px;height:26px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;color:#fff;font-family:'PingFang SC',sans-serif}
.demo-msg.user .ava{background:#6c4dff}
.demo-msg.ai .ava{background:linear-gradient(135deg,#0fc468,#32e6b9)}
.demo-msg-body{display:flex;flex-direction:column;gap:6px}
.demo-msg-body .who{font-size:11px;color:var(--text-light);font-weight:600}
.demo-bubble{font-size:13px;line-height:1.65;color:var(--text);padding:10px 14px;border-radius:4px 12px 12px;background:#f7f8fa}
.demo-msg.user .demo-bubble{background:#f0f7ff;color:var(--ink)}

/* 演示壳 - 工具调度时间线 */
.demo-timeline{background:#f7f8fa;border:1px solid var(--border-soft);border-radius:8px;padding:10px 12px;margin-left:36px}
.demo-timeline-title{font-size:11px;color:var(--text-light);font-weight:600;margin-bottom:8px;display:flex;align-items:center;gap:5px}
.demo-timeline-title .live{width:6px;height:6px;border-radius:50%;background:var(--brand);animation:pulse 1.5s infinite}
.demo-step{display:flex;align-items:center;gap:8px;padding:5px 0;font-size:12px;color:var(--text-mid)}
.demo-step .ico{width:18px;height:18px;border-radius:4px;background:#fff;border:1px solid var(--border-soft);display:flex;align-items:center;justify-content:center;flex-shrink:0;color:var(--brand)}
.demo-step .ico svg{width:11px;height:11px}
.demo-step .label{flex:1}
.demo-step .time{font-size:10px;color:var(--text-light)}
.demo-step.done .ico{background:var(--brand);color:#fff;border-color:var(--brand)}
.demo-step.run .ico{background:rgba(15,196,104,.15);color:var(--brand)}

/* 演示壳 - 产物面板 */
.demo-artifacts{margin-left:36px;display:flex;gap:8px;flex-wrap:wrap}
.demo-artifact{flex:0 0 auto;background:#fff;border:1px solid var(--border-soft);border-radius:8px;padding:8px 12px;display:flex;align-items:center;gap:8px;min-width:140px;transition:.2s;cursor:pointer}
.demo-artifact:hover{box-shadow:var(--shadow-md);transform:translateY(-1px)}
.demo-artifact .fi{width:28px;height:28px;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:700;color:#fff;font-family:'PingFang SC',sans-serif}
.demo-artifact .fi.word{background:#2b579a}
.demo-artifact .fi.pdf{background:#cf222e}
.demo-artifact-info .fn{font-size:12px;color:var(--ink);font-weight:500;white-space:nowrap}
.demo-artifact-info .ft{font-size:10px;color:var(--text-light)}

/* 演示壳 - 输入框 */
.demo-composer{padding:10px 16px 14px;border-top:1px solid var(--border-soft);flex-shrink:0;background:#fff}
.demo-composer-box{background:#f7f8fa;border:1px solid var(--border-soft);border-radius:10px;padding:10px 12px;display:flex;align-items:center;gap:10px}
.demo-composer-box .txt{flex:1;font-size:13px;color:var(--text-light)}
.demo-composer-box .send{min-width:56px;height:32px;border-radius:8px;padding:0 14px;background:var(--brand);color:#fff;border:none;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;font-size:13px;font-weight:500;cursor:pointer;transition:background .3s ease,transform .2s ease}
.demo-composer-box .send:hover{background:#1a9e7c;transform:translateY(-1px)}
.demo-disclaimer{font-size:10px;color:var(--text-light);text-align:center;margin-top:6px}

/* ===== 生态轨道（.ecosystem-section 旋转轨道）===== */
.ecosystem-section{position:relative;width:100%;background:#fff;padding:clamp(60px,8vw,100px) 0 clamp(40px,6vw,70px);overflow:hidden}
.ecosystem-section .section-head{text-align:center;margin-bottom:56px;padding:0 32px}
.ecosystem-orbit{
  --orbit-size:clamp(360px,46vw,620px);--orbit-radius:calc(var(--orbit-size)/2);--item-distance:calc(var(--orbit-radius)*.82);
  position:relative;width:var(--orbit-size);height:var(--orbit-size);margin:0 auto;
}
.ecosystem-ring{
  position:absolute;inset:8%;border:1.5px dashed rgba(15,196,104,.25);border-radius:50%;
}
.ecosystem-ring.inner{inset:24%;border-color:rgba(108,77,255,.18)}
.ecosystem-items-orbit{position:absolute;inset:0;animation:ecosystem-orbit-spin 60s linear infinite;transform-origin:50% 50%;will-change:transform}
/* 鼠标悬停整个转盘时暂停两路动画（外圈公转 + 内部反向旋转） */
.ecosystem-orbit:hover .ecosystem-items-orbit,
.ecosystem-orbit:hover .ecosystem-item-inner{animation-play-state:paused}
.ecosystem-item{position:absolute;top:50%;left:50%;width:0;height:0;transform:translate(-50%,-50%) rotate(var(--angle));z-index:2}
.ecosystem-item-inner{
  position:absolute;left:0;top:0;transform:translate(-50%,-50%) translate(var(--item-distance),0) rotate(calc(var(--angle)*-1deg));
  width:64px;height:64px;border-radius:14px;background:#fff;border:1px solid var(--border-soft);
  box-shadow:var(--shadow-md);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  animation:ecosystem-item-counter-spin 60s linear infinite;
}
.ecosystem-item-inner .ic{width:32px;height:32px;display:flex;align-items:center;justify-content:center;color:var(--brand)}
.ecosystem-item-inner .ic img{width:28px;height:28px;object-fit:contain;display:block}
.ecosystem-item-inner .nm{font-size:10px;color:var(--text-mid);font-weight:500;white-space:nowrap}
.ecosystem-center{
  position:absolute;top:50%;left:50%;
  width:clamp(88px,12vw,128px);height:clamp(88px,12vw,128px);
  transform:translate(-50%,-50%);display:flex;align-items:center;justify-content:center;z-index:3;
}
.ecosystem-center img{width:100%;height:100%;display:block;border-radius:24px}

@keyframes ecosystem-orbit-spin{from{transform:rotate(0)}to{transform:rotate(360deg)}}
@keyframes ecosystem-item-counter-spin{from{transform:translate(-50%,-50%) translate(var(--item-distance),0) rotate(0)}to{transform:translate(-50%,-50%) translate(var(--item-distance),0) rotate(-360deg)}}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(1.3)}}

/* ===== 服务卡片网格 ===== */
.services-section{background:var(--bg-soft);padding:clamp(60px,8vw,100px) 0}
.services-section .section-head{text-align:center;margin-bottom:56px;padding:0 32px}
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;max-width:1100px;margin:0 auto;padding:0 24px}
.service-card{
  background:#fff;border:1px solid var(--border-soft);border-radius:12px;padding:28px 24px;
  transition:all .3s ease;display:flex;flex-direction:column;gap:14px;
}
.service-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(15,196,104,.3)}
.service-card-top{display:flex;align-items:center;gap:12px}
.service-ico{width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0;color:#fff}
.service-ico img{width:40px;height:40px;object-fit:contain;display:block}
.service-card h3{font-size:17px;font-weight:700;color:var(--ink);font-family:'PingFang SC',sans-serif}
.service-card p{font-size:13.5px;color:var(--text-mid);line-height:1.65;flex:1}
.service-tags{display:flex;flex-wrap:wrap;gap:6px}
.service-tag{padding:3px 10px;background:var(--bg-soft);color:var(--text-mid);font-size:11px;border-radius:4px;font-weight:500}

/* ===== 流程步骤 ===== */
.process-section{background:#fff;padding:clamp(60px,8vw,100px) 0}
.process-section .section-head{text-align:center;margin-bottom:56px;padding:0 32px}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;max-width:1100px;margin:0 auto;padding:0 24px;position:relative}
.process-grid::before{content:'';position:absolute;top:32px;left:14%;right:14%;height:2px;background:linear-gradient(90deg,var(--brand),var(--brand-light));opacity:.25}
.process-step{text-align:center;position:relative}
.process-num{
  width:64px;height:64px;border-radius:50%;background:#fff;border:2px solid var(--brand);
  display:flex;align-items:center;justify-content:center;margin:0 auto 18px;font-size:22px;font-weight:700;
  color:var(--brand);font-family:'PingFang SC',sans-serif;position:relative;z-index:2;transition:.3s;
}
.process-step:hover .process-num{background:linear-gradient(135deg,#0fc468,#32e6b9);color:#fff;border-color:transparent;transform:scale(1.08);box-shadow:0 8px 20px rgba(15,196,104,.3)}
.process-step h4{font-size:16px;font-weight:700;color:var(--ink);margin-bottom:6px;font-family:'PingFang SC',sans-serif}
.process-step p{font-size:13px;color:var(--text-light);line-height:1.6}

/* ===== 优势区（深色背景）===== */
.adv-section{background:var(--ink);color:#fff;padding:clamp(60px,8vw,100px) 0;position:relative;overflow:hidden}
.adv-section::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 80% 20%,rgba(15,196,104,.12),transparent 50%),radial-gradient(circle at 20% 80%,rgba(108,77,255,.1),transparent 50%)}
.adv-section .section-head{position:relative;z-index:2;text-align:center;margin-bottom:56px;padding:0 32px}
.adv-section .section-title{color:#fff}
.adv-section .section-desc{color:rgba(255,255,255,.6)}
.adv-section .section-tag{background:rgba(15,196,104,.2);color:var(--brand-light)}
.adv-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(3,1fr);gap:20px;max-width:1100px;margin:0 auto;padding:0 24px}
.adv-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:26px 22px;transition:.3s;backdrop-filter:blur(6px)}
.adv-card:hover{background:rgba(255,255,255,.08);border-color:rgba(15,196,104,.3);transform:translateY(-3px)}
.adv-head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.adv-ico{width:42px;height:42px;border-radius:10px;background:transparent;display:flex;align-items:center;justify-content:center;color:var(--brand-light);flex-shrink:0}
.adv-ico img{width:38px;height:38px;object-fit:contain;display:block}
.adv-card h4{font-size:16px;font-weight:700;color:#fff;font-family:'PingFang SC',sans-serif;line-height:1.3;margin:0}
.adv-card p{font-size:13px;color:rgba(255,255,255,.55);line-height:1.65}

/* ===== 企业动态 ===== */
.news-section{background:#fff;padding:clamp(60px,8vw,100px) 0}
.news-section .section-head{text-align:center;margin-bottom:56px;padding:0 32px}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;max-width:1100px;margin:0 auto;padding:0 24px}
.news-card{background:#fff;border:1px solid var(--border-soft);border-radius:12px;padding:28px 24px 58px;transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;display:flex;flex-direction:column;gap:12px;position:relative;overflow:hidden;cursor:pointer;text-decoration:none;will-change:transform}
/* 封面图：容器铺满卡片顶缘，图片 absolute 裁切填充（不变形）
   加载完成淡入（.ready），避免懒加载图片 pop-in 造成视觉跳变 */
.news-card .news-cover-wrap{position:relative;width:calc(100% + 48px);margin:-28px -24px 0;height:160px;overflow:hidden;flex:none}
.news-card .news-cover-wrap img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;transform:translateZ(0);opacity:0;transition:opacity .55s ease,transform .3s ease;will-change:transform}
.news-card .news-cover-wrap img.ready{opacity:1}
.news-card:hover .news-cover-wrap img{transform:scale(1.02)}
/* 封面图顶部的分类浮层 */
.news-card .news-cover-wrap .news-cat{position:absolute;top:12px;left:12px;z-index:2}
/* 无封面时的品牌渐变占位块 */
.news-card .news-cover-wrap.placeholder{
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-light) 55%,#8be8cf 100%);
  opacity:.92;
}
.news-card .news-cover-wrap.placeholder .news-cat{background:rgba(255,255,255,.94);color:#1f9a7b;backdrop-filter:none;-webkit-backdrop-filter:none}
.news-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:rgba(15,196,104,.3)}
.news-cat{display:inline-block;padding:3px 10px;background:rgba(0,0,0,.5);color:#fff;font-size:11px;font-weight:600;border-radius:4px}
.news-date{position:absolute;right:24px;bottom:22px;font-size:12px;color:#999;font-weight:500}
.news-card h3{font-size:16px;color:var(--ink);line-height:19.2px;font-family:'PingFang SC',sans-serif;margin-bottom:10px}
.news-card p{font-size:13px;color:var(--text-mid);line-height:1.7;flex:1}
.news-more{position:absolute;left:24px;bottom:20px;font-size:13px;color:var(--brand);font-weight:500;display:inline-flex;align-items:center;gap:4px;transition:gap .3s ease}
.news-more:hover{gap:8px}
.news-more-wrap{display:flex;justify-content:center;margin-top:40px;padding:0 24px}
.btn-news-more{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 28px;height:48px;border-radius:999px;border:1.5px solid var(--brand);background:#fff;color:var(--brand);font-size:15px;font-weight:500;cursor:pointer;transition:all .3s ease}
.btn-news-more .arrow{transition:transform .3s ease}
.btn-news-more:hover{background:var(--brand);color:#fff;transform:translateY(-2px);box-shadow:0 10px 28px rgba(15,196,104,.25)}
.btn-news-more:hover .arrow{transform:translateX(4px)}
@media(max-width:968px){.news-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.news-grid{grid-template-columns:1fr}}

/* ===== APP 下载区 ===== */
.download-section{background:linear-gradient(135deg, #f8f9fa 0%, #f9f9f9 50%, #f1f2f6 100%);padding:0 clamp(16px,4vw,40px);position:relative;overflow:hidden}
#downloadParticles{position:absolute;inset:0;width:100%;height:100%;z-index:1;pointer-events:none}
.download-wrap{position:relative;z-index:2;max-width:1100px;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.download-title{font-family:'PingFang SC',sans-serif;font-size:clamp(26px,3.4vw,42px);font-weight:300;color:var(--ink);line-height:1.25;letter-spacing:-.5px;margin-bottom:16px}
.download-desc{font-size:15px;color:var(--text-mid);line-height:1.75;margin-bottom:28px;max-width:440px}
.download-actions{display:flex;gap:12px;margin-bottom:26px;flex-wrap:wrap}
.store-btn{display:inline-flex;align-items:center;gap:10px;padding:10px 20px;background:#1a1a1a;color:#fff;border-radius:10px;transition:.3s;cursor:pointer}
.store-btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,.2)}
.store-btn .store-icon{width:22px;height:22px;object-fit:contain;flex-shrink:0}
.store-btn .sb-txt{display:flex;flex-direction:column;line-height:1.15}
.store-btn .sb-txt small{font-size:10px;opacity:.8}
.store-btn .sb-txt b{font-size:15px;font-weight:600}
.store-btn.outline{background:transparent;color:var(--ink);border:1.5px solid var(--border)}
.store-btn.outline:hover{border-color:var(--brand);color:var(--brand);box-shadow:0 8px 20px #cfe9dc}
.download-qr{display:flex;align-items:center;gap:14px}
.qr-box{width:96px;height:96px;background:#fff;border:1px solid var(--border-soft);border-radius:10px;padding:6px;flex-shrink:0;box-shadow:0 2px 8px rgba(25,26,35,.06)}
.qr-box img{width:100%;height:100%;object-fit:contain;display:block;border-radius:4px}
.qr-text{font-size:13px;color:var(--text-mid);line-height:1.5}
.qr-text strong{color:var(--ink);font-size:14px;display:block;margin-bottom:2px}
.qr-text span{color:var(--text-light);font-size:12px}
.app-shot{display:block;max-width:100%;height:auto}
@media(max-width:968px){
  .download-wrap{grid-template-columns:1fr;gap:40px;text-align:center}
  .download-left{display:flex;flex-direction:column;align-items:center}
  .download-desc{margin-left:auto;margin-right:auto}
  .download-qr{justify-content:center}
}

/* ===== CTA 区 ===== */
.cta-section{background:#fff;padding:clamp(50px,7vw,90px) 0;text-align:center;position:relative;overflow:hidden}
.cta-section::before{content:'';position:absolute;inset:0;background:linear-gradient(180deg,#0fc46800,#0fc4680d,#0fc46800)}
.cta-inner{position:relative;z-index:2;max-width:680px;margin:0 auto;padding:0 32px}
.cta-inner h2{font-family:'PingFang SC',sans-serif;font-size:clamp(26px,3.6vw,42px);font-weight:700;color:var(--ink);margin-bottom:16px;letter-spacing:-.5px;line-height:1.3}
.cta-inner p{font-size:16px;color:var(--text-mid);margin-bottom:32px;line-height:1.7}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ===== Footer（.footer #f8f9fa）===== */
.footer{background:var(--bg-soft);color:var(--text);padding:56px 0 20px;margin-top:auto;position:relative;z-index:999;overflow:hidden}
.footer-inner{max-width:1200px;margin:0 auto;padding:0 32px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand .brand{margin-bottom:14px}
.footer-brand p{font-size:13px;color:var(--text-light);line-height:1.7;max-width:320px}
.footer-col h5{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:16px;font-family:'PingFang SC',sans-serif}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:13px;color:var(--text-light);transition:.2s}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{border-top:1px solid var(--border-soft);padding-top:20px;text-align:center;font-size:12px;color:var(--text-light);line-height:1.8}
.footer-bottom a{color:var(--text-light);text-decoration:none}
.footer-bottom a:hover{text-decoration:underline}

/* ===== 联系区 ===== */
.contact-section{background:var(--bg-soft);padding:clamp(60px,8vw,100px) 0}
.contact-section .section-head{text-align:center;margin-bottom:48px;padding:0 32px}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;max-width:1100px;margin:0 auto;padding:0 24px;align-items:stretch}
.contact-cards{display:grid;gap:14px;align-content:start}
.contact-card{background:#fff;border:1px solid var(--border-soft);border-radius:10px;padding:18px 20px;display:flex;align-items:center;gap:14px;transition:.25s}
.contact-card:hover{box-shadow:var(--shadow-md);transform:translateX(3px);border-color:rgba(15,196,104,.3)}
.contact-card .ci{width:32px;height:32px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0;background:transparent}
.contact-card .ci img{width:32px;height:32px;object-fit:contain;display:block}
.contact-card h4{font-size:14px;font-weight:500;color:var(--ink);margin-bottom:3px}
.contact-card p{font-size:13px;color:var(--text-light)}
.contact-about{background:#fff;border:1px solid var(--border-soft);border-radius:14px;padding:30px;box-shadow:var(--shadow-md);display:flex;flex-direction:column;justify-content:center}
.contact-about h3{font-size:20px;font-weight:700;color:var(--ink);margin-bottom:14px;font-family:'PingFang SC',sans-serif}
.contact-about .about-desc{font-size:14px;color:var(--text-mid);line-height:1.8;margin-bottom:24px}
.contact-about .honor-block h4{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:12px}
.contact-about .honor-block ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.contact-about .honor-block li{font-size:13px;color:var(--text-light);padding-left:18px;position:relative;line-height:1.5}
.contact-about .honor-block li::before{content:'';position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--brand)}

/* ===== 回到顶部 ===== */
.back-top{position:fixed;bottom:28px;right:28px;width:44px;height:44px;border-radius:50%;background:#333;color:#999;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:999;box-shadow:0 8px 30px rgba(15,196,104,.2);opacity:0;visibility:hidden;transition:.3s;border:none}
.back-top.show{opacity:1;visibility:visible}
.back-top:hover{transform:translateY(-3px)}
.back-top::before{content:"";width:13px;height:13px;border-top:2.5px solid #fff;border-right:2.5px solid #fff;border-radius:1.5px;transform:rotate(-45deg) translateY(2px);transition:border-color .3s}
.back-top:hover::before{border-color:var(--brand-light)}

/* ===== Toast ===== */
/* ===== 滚动动画 ===== */
.fade-up{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.fade-up.in{opacity:1;transform:translateY(0)}
.fade-in{opacity:0;transition:opacity .8s ease}
.fade-in.in{opacity:1}

/* ===== 响应式 ===== */
@media(max-width:968px){
  .header-inner{padding:0 20px}
  .nav-links{display:none}
  .nav-links.open{display:flex;position:absolute;top:64px;left:0;right:0;flex-direction:column;background:#fff;padding:12px 20px;box-shadow:var(--shadow-md);border-top:1px solid var(--border-soft);gap:2px}
  .nav-link{width:100%;justify-content:flex-start}
  .nav-toggle{display:flex}
  .hero-container{padding:110px 24px 60px}
  .hero-stats{gap:28px}
  .demo-shell{grid-template-columns:1fr;grid-template-rows:40px 1fr;height:auto;max-height:none}
  .demo-sidebar{display:none}
  .services-grid,.adv-grid,.process-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media(max-width:640px){
  .hero-container{padding:96px 16px 48px}
  .hero-actions{flex-direction:column;width:100%}
  .btn-primary,.btn-outline{width:100%;max-width:300px}
  .hero-stats{gap:20px}
  .hero-stat-divider{display:none}
  .services-grid,.adv-grid,.process-grid,.footer-grid{grid-template-columns:1fr}
  .section-title{font-size:24px}
}