/* ============================================================
   加贝软件 - 解决方案 页面通用样式 (UI 美化版)
   设计原则：品牌橙 + 深海军蓝；玻璃态质感；清晰层级；精致动效
   ============================================================ */
:root{
  --ink:#0f2747;
  --ink-2:#1c3a63;
  --ink-3:#2c527f;
  --accent:#f0881e;
  --accent-2:#e06c12;
  --accent-soft:rgba(240,136,30,.10);
  --accent-glow:rgba(240,136,30,.20);
  --bg:#eef2f7;
  --surface:#ffffff;
  --surface-2:#f7f9fc;
  --line:#e4eaf3;
  --line-2:#d7e0ee;
  --text:#384a66;
  --text-strong:#1f3556;
  --muted:#7488a3;
  --radius:16px;
  --radius-sm:12px;
  --radius-xs:8px;
  --shadow-sm:0 4px 14px rgba(15,39,71,.05);
  --shadow:0 10px 30px rgba(15,39,71,.08);
  --shadow-lg:0 18px 44px rgba(15,39,71,.14);
  --shadow-xl:0 24px 60px rgba(15,39,71,.18);
  --maxw:1180px;
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --transition:0.25s cubic-bezier(.4,0,.2,1);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  color:var(--text);
  background:var(--bg);
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;}

/* ---------- 顶部导航 (玻璃态) ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.72);
  backdrop-filter:saturate(180%) blur(16px);
  -webkit-backdrop-filter:saturate(180%) blur(16px);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(255,255,255,.6) inset;
  transition:box-shadow .3s;
}
/* 滚动后导航阴影加深 */
.site-header.scrolled{box-shadow:0 1px 0 rgba(255,255,255,.6) inset,0 4px 20px rgba(15,39,71,.10);}
.site-header .bar{
  max-width:var(--maxw);margin:0 auto;
  padding:14px 24px;
  display:flex;align-items:center;justify-content:space-between;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;color:var(--ink);letter-spacing:.4px;}
.brand .logo{
  width:34px;height:34px;border-radius:9px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:18px;
  box-shadow:0 4px 12px rgba(240,136,30,.35);
  transition:var(--transition);
}
.brand:hover .logo{transform:rotate(-8deg) scale(1.05);}
.brand b{color:var(--accent);}
.site-nav{display:flex;gap:6px;}
.site-nav a{
  padding:8px 14px;border-radius:10px;color:var(--muted);
  font-size:15px;font-weight:500;transition:var(--transition);
  position:relative;
}
.site-nav a::after{
  content:"";position:absolute;bottom:2px;left:50%;transform:translateX(-50%) scaleX(0);
  width:60%;height:2px;border-radius:1px;background:var(--accent);
  transition:transform var(--transition);
}
.site-nav a:hover{color:var(--ink);background:var(--surface-2);}
.site-nav a:hover::after{transform:translateX(-50%) scaleX(1);}
.site-nav a.active{color:var(--accent);background:var(--accent-soft);}

/* ---------- 英雄区 (增强渐变与质感) ---------- */
.hero{
  position:relative;overflow:hidden;color:#fff;
  background:
    radial-gradient(1100px 460px at 88% -8%,rgba(240,136,30,.30),transparent 60%),
    radial-gradient(900px 500px at 10% 120%,rgba(44,82,127,.50),transparent 60%),
    linear-gradient(135deg,#0f2747 0%,#163a63 55%,#1f4c79 100%);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    radial-gradient(rgba(255,255,255,.07) 1px,transparent 1.4px);
  background-size:22px 22px;opacity:.5;
}
.hero::after{
  content:"";position:absolute;top:-50%;right:-20%;
  width:600px;height:600px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,136,30,.06),transparent 70%);
  pointer-events:none;
}
.hero .inner{
  position:relative;z-index:2;
  max-width:var(--maxw);margin:0 auto;
  padding:74px 24px 66px;
  display:grid;grid-template-columns:1.4fr .9fr;gap:40px;align-items:center;
}
.hero .crumb{font-size:13.5px;color:rgba(255,255,255,.62);margin-bottom:16px;letter-spacing:.3px;}
.hero .crumb a{transition:var(--transition);}
.hero .crumb a:hover{color:#fff;}
.hero h1{
  margin:0 0 18px;font-size:clamp(30px,4vw,46px);
  font-weight:800;line-height:1.18;letter-spacing:.5px;
}
.hero .lead{font-size:17px;line-height:1.85;color:rgba(255,255,255,.88);max-width:640px;margin:0;}
.hero .chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero .chips:empty{display:none;}
.hero .chip{
  font-size:13px;padding:7px 14px;border-radius:999px;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.22);
  color:rgba(255,255,255,.92);transition:var(--transition);
  line-height:1.5;
}
.hero .chip:hover{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.35);}
.hero .actions{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap;}
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 24px;border-radius:999px;font-weight:700;font-size:15px;transition:var(--transition);
  cursor:pointer;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(240,136,30,.4);}
.btn-primary:hover{background:var(--accent-2);transform:translateY(-2px);box-shadow:0 12px 28px rgba(240,136,30,.5);}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.28);}
.btn-ghost:hover{background:rgba(255,255,255,.2);transform:translateY(-2px);}
/* 英雄区右侧装饰图 */
.hero-art{position:relative;height:300px;border-radius:18px;overflow:hidden;box-shadow:var(--shadow-xl);border:1px solid rgba(255,255,255,.14);background:var(--ink);}
.hero-art svg{width:100%;height:100%;overflow:visible;}
.hero-shot{display:block;width:100%;height:100%;object-fit:cover;background:var(--ink);transition:transform .6s cubic-bezier(.2,.6,.3,1),filter .6s;}
.hero-art:hover .hero-shot{transform:scale(1.04);filter:brightness(1.1);}

/* ---------- 主体布局：侧栏目录 + 内容 ---------- */
.layout{
  max-width:var(--maxw);margin:0 auto;padding:46px 24px 20px;
  display:grid;grid-template-columns:232px 1fr;gap:46px;align-items:start;
}
.toc{position:sticky;top:84px;align-self:start;}
.toc .toc-title{
  font-size:13px;font-weight:700;color:var(--muted);letter-spacing:1px;margin-bottom:12px;text-transform:uppercase;
  display:flex;align-items:center;gap:8px;
}
.toc .toc-title::before{
  content:"";display:inline-block;width:3px;height:14px;
  border-radius:2px;background:linear-gradient(var(--accent),var(--accent-2));
}
.toc ol{list-style:none;margin:0;padding:0;border-left:2px solid var(--line-2);}
.toc li a{
  display:block;padding:9px 0 9px 16px;margin-left:-2px;border-left:2px solid transparent;
  color:var(--muted);font-size:14.5px;line-height:1.4;transition:var(--transition);
}
.toc li a:hover{color:var(--ink);border-left-color:var(--ink-3);}
.toc li a.active{color:var(--accent);border-left-color:var(--accent);font-weight:600;}

.content{min-width:0;}
/* 区块间分隔线 */
.section{
  margin:0 0 46px;scroll-margin-top:80px;
  position:relative;
}
.section::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,var(--line) 0%,var(--line-2) 50%,transparent 100%);
  margin-top:46px;
}
.section:last-child::after{display:none;}
.section:empty{display:none;margin:0;padding:0;}
.section:empty + .section::after{display:none;}
.section-head{display:flex;align-items:flex-start;gap:16px;margin-bottom:22px;}
.section-kicker{
  flex:none;width:46px;height:46px;border-radius:13px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;
  box-shadow:0 8px 18px rgba(240,136,30,.32);
  transition:var(--transition);
}
.section:hover .section-kicker{transform:scale(1.05);}
.section-head .titles{min-width:0;}
.section-head h2{margin:0;font-size:23px;font-weight:800;color:var(--ink);line-height:1.35;}
.section-head .sub{margin:6px 0 0;font-size:15px;color:var(--muted);font-weight:500;}

/* 概述段落 (玻璃卡片) */
.lead-text{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 24px;color:var(--text);box-shadow:var(--shadow-sm);margin:0 0 8px;
  transition:var(--transition);
}
.lead-text:hover{box-shadow:var(--shadow);border-color:var(--line-2);}
.lead-text + .lead-text{margin-top:14px;}
/* 卡片网格后紧跟概述卡时，补充分隔间距 */
.feature-list + .lead-text{margin-top:22px;}

/* 通用段落增强 — 视觉层次更清晰 */
.para + .para{margin-top:18px;}
.section > .para:first-of-type{margin-top:4px;}
/* 段落中可嵌入小标题的样式 */
.para strong,.para b{color:var(--ink-2);}

/* 特性卡片 (精致玻璃态) */
.feature-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:16px;}
.feature{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:20px 20px 20px 70px;
  box-shadow:var(--shadow-sm);transition:var(--transition);
  overflow:hidden;
}
.feature::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--accent-soft),transparent);
  opacity:0;transition:var(--transition);
}
.feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--accent-soft);}
.feature:hover::before{opacity:1;}
.feature .num{
  position:absolute;left:18px;top:20px;width:36px;height:36px;border-radius:10px;
  background:var(--accent-soft);color:var(--accent-2);font-weight:800;font-size:15px;
  display:flex;align-items:center;justify-content:center;
  transition:var(--transition);
}
.feature:hover .num{background:var(--accent);color:#fff;transform:scale(1.1);}
.feature h3{margin:0 0 8px;font-size:16.5px;font-weight:700;color:var(--text-strong);}
.feature p{margin:0;font-size:14.5px;color:var(--text);line-height:1.75;}

/* 子区块 (增强) */
.sub-block{
  background:var(--surface-2);border:1px solid var(--line);border-left:3px solid var(--accent);
  border-radius:var(--radius-sm);padding:18px 20px;margin:18px 0;
  transition:var(--transition);
}
.sub-block:hover{background:var(--surface);border-color:var(--line-2);}
.sub-block h3{margin:0 0 12px;font-size:16px;font-weight:700;color:var(--ink-2);}
.sub-block .feature-list{grid-template-columns:1fr;}
/* 子区块内的卡片间距 */
.sub-block .feature-list .feature{padding:16px 16px 16px 56px;margin-bottom:10px;}
.sub-block .feature-list .feature .num{left:14px;top:16px;width:30px;height:30px;font-size:13px;}

/* 要点列表 (增强) */
.bullets{list-style:none;margin:0;padding:0;}
.bullets li{
  position:relative;padding:8px 0 8px 30px;margin:0;color:var(--text);
  border-bottom:1px solid var(--line);transition:var(--transition);
}
.bullets li:last-child{border-bottom:none;}
.bullets li:hover{color:var(--text-strong);padding-left:34px;background:rgba(240,136,30,.03);border-radius:6px;}
.bullets li::before{
  content:"";position:absolute;left:8px;top:15px;width:8px;height:8px;border-radius:3px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));transform:rotate(45deg);
  transition:var(--transition);
}
.bullets li:hover::before{transform:rotate(135deg) scale(1.2);}

/* 信息小标签 */
.tag{
  display:inline-block;padding:3px 10px;border-radius:999px;
  font-size:12px;font-weight:600;color:var(--accent-2);
  background:var(--accent-soft);border:1px solid rgba(240,136,30,.15);
  margin-right:6px;margin-bottom:6px;
}

/* ---------- 行动号召 (增强玻璃态 + 动效) ---------- */
.cta-band{
  position:relative;overflow:hidden;color:#fff;border-radius:var(--radius);
  background:linear-gradient(135deg,#0f2747,#1c3a63 60%,#234e7c);
  padding:34px 38px;margin:8px 0 8px;box-shadow:var(--shadow-lg);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  transition:var(--transition);
}
.cta-band:hover{box-shadow:var(--shadow-xl);transform:translateY(-2px);}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(circle at 90% 20%,rgba(240,136,30,.10),transparent 50%);
  transition:opacity .6s;
  pointer-events:none;
}
.cta-band:hover::before{opacity:.6;}
.cta-band::after{
  content:"";position:absolute;right:-40px;bottom:-60px;
  width:200px;height:200px;border:2px solid rgba(240,136,30,.35);
  border-radius:50%;pointer-events:none;
  transition:transform .6s cubic-bezier(.2,.6,.3,1);
}
.cta-band:hover::after{transform:scale(1.15) translate(8px,-8px);}
.cta-band .cta-text{position:relative;z-index:2;max-width:640px;}
.cta-band h3{margin:0 0 6px;font-size:21px;font-weight:800;}
.cta-band p{margin:0;color:rgba(255,255,255,.82);font-size:15px;}

/* ---------- 页脚 (加深) ---------- */
.site-footer{background:#0b1d34;color:rgba(255,255,255,.72);margin-top:30px;padding:40px 24px 30px;font-size:14px;}
.site-footer .wrap{max-width:var(--maxw);margin:0 auto;display:flex;flex-wrap:wrap;gap:36px;justify-content:space-between;}
.site-footer .brand{color:#fff;}
.site-footer .brand .logo{background:linear-gradient(135deg,var(--accent),var(--accent-2));}
.site-footer p{max-width:420px;margin:12px 0 0;line-height:1.8;color:rgba(255,255,255,.66);}
.site-footer .col h4{color:#fff;margin:0 0 12px;font-size:15px;position:relative;padding-left:14px;}
.site-footer .col h4::before{content:"";position:absolute;left:0;top:4px;width:3px;height:14px;border-radius:2px;background:var(--accent);}
.site-footer .col div{margin:6px 0;color:rgba(255,255,255,.66);transition:var(--transition);}
.site-footer .col div:hover{color:rgba(255,255,255,.9);}
.site-footer .copy{
  width:100%;border-top:1px solid rgba(255,255,255,.12);
  margin-top:22px;padding-top:18px;color:rgba(255,255,255,.5);font-size:13px;
  text-align:center;
}
.site-footer a{color:rgba(255,255,255,.8);}
.site-footer a:hover{color:#fff;}

/* ---------- 进场动画 (CSS 增强) ---------- */
@keyframes reveal{from{opacity:0;transform:translateY(20px);} to{opacity:1;transform:none;}}
@keyframes fadeIn{from{opacity:0;} to{opacity:1;}}
.reveal{animation:reveal .6s cubic-bezier(.2,.6,.3,1) both;}
.reveal-delay-1{animation-delay:.1s;}
.reveal-delay-2{animation-delay:.2s;}
.reveal-delay-3{animation-delay:.3s;}
@media(prefers-reduced-motion:reduce){.reveal{animation:none;}}

/* 卡片逐项入场 */
.feature-list .feature{animation:reveal .5s cubic-bezier(.2,.6,.3,1) both;}
.feature-list .feature:nth-child(1){animation-delay:0s;}
.feature-list .feature:nth-child(2){animation-delay:.06s;}
.feature-list .feature:nth-child(3){animation-delay:.12s;}
.feature-list .feature:nth-child(4){animation-delay:.18s;}
.feature-list .feature:nth-child(5){animation-delay:.24s;}
.feature-list .feature:nth-child(6){animation-delay:.30s;}
.feature-list .feature:nth-child(7){animation-delay:.36s;}
.feature-list .feature:nth-child(8){animation-delay:.42s;}

/* ---------- 通用段落 ---------- */
.para{margin:0 0 14px;color:var(--text);}
.section p.para{font-size:15.5px;}

/* ---------- 索引页 (增强卡片 + 精致布局) ---------- */
.idx-hero{padding:66px 24px 60px;}
.idx-main{max-width:var(--maxw);margin:0 auto;padding:42px 24px 10px;}
.idx-group{margin:0 0 46px;position:relative;}
.idx-group h2{
  font-size:21px;color:var(--ink);margin:0 0 20px;
  display:flex;align-items:center;gap:10px;
  padding-bottom:14px;border-bottom:1px solid var(--line);
}
.idx-group h2::before{content:"";width:5px;height:20px;background:linear-gradient(var(--accent),var(--accent-2));border-radius:3px;}
.idx-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px;
}
.idx-card{
  display:flex;flex-direction:column;justify-content:space-between;gap:12px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:0 0 22px;box-shadow:var(--shadow-sm);transition:var(--transition);
  overflow:hidden;
}
.idx-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--accent-soft);}
.idx-card .ic{
  width:36px;height:36px;border-radius:10px;background:var(--accent-soft);color:var(--accent-2);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;
  margin:0 22px;transition:var(--transition);
}
.idx-card:hover .ic{background:var(--accent);color:#fff;transform:scale(1.1) rotate(-5deg);}
.idx-thumb{
  width:100%;height:140px;object-fit:cover;
  display:block;border-bottom:1px solid var(--line);
  transition:var(--transition);
}
.idx-card:hover .idx-thumb{filter:brightness(1.05) saturate(1.1);}
.idx-card .nm{font-size:17px;font-weight:700;color:var(--text-strong);padding:0 22px;}
.idx-card .ar{font-size:14px;font-weight:600;color:var(--accent);transition:var(--transition);padding:0 22px;display:flex;align-items:center;gap:4px;}
.idx-card:hover .ar{transform:translateX(4px);}

/* ---------- 响应式 (增强) ---------- */
@media(max-width:1100px){
  .hero .inner{gap:28px;}
  .idx-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));}
}
@media(max-width:980px){
  .layout{grid-template-columns:1fr;gap:0;}
  .toc{display:none;}
  .hero .inner{grid-template-columns:1fr;padding:56px 24px 50px;}
  .hero-art{height:240px;margin-top:28px;max-width:480px;margin-left:auto;margin-right:auto;}
  .hero .lead{max-width:100%;}
  .section::after{margin-top:32px;}
  .section{margin:0 0 32px;}
}
@media(max-width:720px){
  .idx-grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px;}
  .hero .inner{padding:44px 18px 40px;}
  .layout{padding:28px 18px 10px;}
  .cta-band{padding:26px 22px;}
  .feature-list{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));}
}
@media(max-width:640px){
  .site-header .bar{padding:12px 16px;flex-wrap:wrap;gap:8px;}
  .site-nav{flex-wrap:wrap;gap:4px;}
  .site-nav a{padding:6px 10px;font-size:13.5px;}
  .hero .inner{padding:36px 16px 34px;gap:20px;}
  .hero h1{font-size:clamp(24px,6vw,32px);}
  .hero .lead{font-size:15.5px;}
  .hero .actions{flex-direction:column;align-items:stretch;}
  .hero .actions .btn{justify-content:center;}
  .hero-art{height:170px;margin-top:16px;}
  .layout{padding:24px 16px 8px;}
  .section-head{flex-direction:column;gap:10px;}
  .section-head h2{font-size:20px;}
  .section-head .section-kicker{width:38px;height:38px;font-size:14px;border-radius:10px;}
  .section{margin:0 0 28px;}
  .section::after{margin-top:28px;}
  .feature-list{grid-template-columns:1fr;gap:12px;}
  .feature{padding:16px 16px 16px 56px;}
  .feature .num{left:14px;top:16px;width:30px;height:30px;font-size:13px;}
  .feature h3{font-size:15px;}
  .feature p{font-size:14px;}
  .sub-block{padding:14px 16px;}
  .cta-band{padding:24px 18px;flex-direction:column;text-align:center;}
  .cta-band h3{font-size:18px;}
  .site-footer{padding:32px 18px 24px;}
  .site-footer .wrap{flex-direction:column;gap:20px;}
  .idx-hero{padding:40px 16px 36px;}
  .idx-main{padding:28px 16px 6px;}
  .idx-group{margin:0 0 32px;}
  .idx-group h2{font-size:18px;padding-bottom:10px;}
  .idx-grid{grid-template-columns:1fr 1fr;gap:12px;}
  .idx-thumb{height:100px;}
  .idx-card .nm{font-size:15px;padding:0 16px;}
  .idx-card .ar{font-size:13px;padding:0 16px;}
  .idx-card .ic{margin:0 16px;width:32px;height:32px;font-size:14px;}
}
@media(max-width:400px){
  .idx-grid{grid-template-columns:1fr;}
  .hero-art{height:150px;}
  .hero .chips{flex-direction:column;}
  .hero .chip{width:100%;text-align:center;}
}