:root{
  --ink:#0A2418; --paper:#F5F1E8; --gold:#C79A3C; --navy:#0B2E1F;
  --body:#5A6254; --card:#EDE5D6; --line:rgba(199,154,60,.45);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:var(--body);background:var(--paper);line-height:1.75;font-size:16px}
h1,h2,h3,.serif{font-family:"Noto Serif SC","Songti SC",serif;color:var(--navy)}
a{text-decoration:none;color:inherit}
.wrap{max-width:1120px;margin:0 auto;padding:0 32px}
.eyebrow{color:var(--gold);font-size:13px;letter-spacing:.35em;font-weight:700}
.quotebar{background:var(--ink);color:#F5F1E8;padding:22px 34px;border-left:4px solid var(--gold);font-family:"Noto Serif SC",serif;font-size:20px;border-radius:2px}
.quotebar span{color:var(--gold)}
.btn{display:inline-block;padding:14px 34px;font-size:15px;letter-spacing:.12em;border-radius:2px;border:1px solid var(--gold)}
.btn.gold{background:var(--gold);color:var(--ink);font-weight:700}
.btn.gold:hover{background:#d9ad52}
.btn.ghost{color:#F5F1E8}
.btn.ghost:hover{background:rgba(199,154,60,.15)}

/* ===== 导航 ===== */
nav{position:sticky;top:0;z-index:50;background:rgba(245,241,232,.92);backdrop-filter:blur(8px);border-bottom:1px solid rgba(10,36,24,.08)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-family:"Noto Serif SC",serif;font-weight:900;font-size:19px;color:var(--navy)}
.brand small{display:block;font-size:10px;color:var(--gold);letter-spacing:.3em;font-weight:700}
.brand a{color:inherit}
.menu{display:flex;gap:30px;font-size:14px;color:var(--navy)}
.menu a:hover,.menu a.on{color:var(--gold)}
.navbtn{background:var(--ink);color:#F5F1E8;padding:9px 22px;border-radius:2px;font-size:14px;letter-spacing:.1em}
.navbtn:hover{background:var(--gold)}
/* 移动端全屏抽屉菜单（方案A）：桌面隐藏，≤600px 启用 */
.m-burger,.m-drawer{display:none}

/* ===== Hero / 页头 ===== */
.hero{background:var(--ink);color:#F5F1E8;padding:96px 0 80px;position:relative;overflow:hidden}
.hero .eyebrow{letter-spacing:.5em}
.hero h1{color:#F5F1E8;font-size:52px;line-height:1.3;font-weight:900;margin:22px 0 20px}
.hero h1 em{font-style:normal;color:var(--gold)}
.hero p.lead{font-size:18px;color:rgba(245,241,232,.78)}
.hero .ctas{display:flex;gap:16px;margin-top:40px}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.arch{border:1px solid var(--line);padding:26px 24px 20px;border-radius:2px;background:rgba(199,154,60,.05)}
.arch .cap{color:var(--gold);font-size:12px;letter-spacing:.3em;margin-bottom:18px;display:flex;align-items:center;justify-content:center;gap:14px}
.arch .cap::before,.arch .cap::after{content:"";height:1px;width:36px;flex:none}
.arch .cap::before{background:linear-gradient(90deg,transparent,rgba(199,154,60,.65))}
.arch .cap::after{background:linear-gradient(90deg,rgba(199,154,60,.65),transparent)}
.sysrow{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-bottom:12px}
.sysrow span{position:relative;background:rgba(245,241,232,.05);border:1px solid rgba(199,154,60,.35);border-top:2px solid var(--gold);color:#F5F1E8;font-size:12.5px;font-weight:600;text-align:center;padding:12px 4px;border-radius:2px}
/* 总线汇流：卡片短接线 → 横向总线 → 中心垂线入底座，全部随栅格自适应 */
.sysrow span::after{content:"";position:absolute;left:50%;top:100%;transform:translateX(-50%);width:1px;height:12px;background:var(--gold);opacity:.75}
.arch .rail{position:relative;height:22px}
.arch .rail::before{content:"";position:absolute;left:4px;right:4px;top:0;height:1px;background:linear-gradient(90deg,rgba(199,154,60,0),var(--gold) 15%,var(--gold) 85%,rgba(199,154,60,0));opacity:.8}
.arch .rail::after{content:"";position:absolute;left:50%;top:0;transform:translateX(-50%);width:1px;height:22px;background:var(--gold);opacity:.8}
.arch .base{margin-top:0;background:linear-gradient(180deg,#D5AB4F,var(--gold));color:var(--ink);text-align:center;font-weight:700;font-size:13px;padding:13px 10px;border-radius:2px;letter-spacing:.24em;box-shadow:0 2px 12px rgba(199,154,60,.28)}
.arch .note{color:rgba(245,241,232,.62);font-size:11.5px;margin-top:14px;text-align:center;letter-spacing:.12em}

/* ===== 区块通用 ===== */
section{padding:88px 0}
.sec-head{margin-bottom:48px}
.sec-head h2{font-size:34px;font-weight:900;margin:14px 0 0}
.sec-head .kicker{font-size:15px;color:var(--body)}

/* ===== 卡片栅格 ===== */
.grid4{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-bottom:36px}
.blk{background:#fff;border:1px solid rgba(10,36,24,.08);border-top:3px solid var(--gold);padding:28px 26px;border-radius:2px}
.blk i{font-style:normal;color:var(--gold);font-weight:700;font-size:13px;letter-spacing:.15em}
.blk h3{font-size:19px;margin:8px 0}
.blk p{font-size:14.5px}
.pains{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:36px}
.pain{background:#fff;border:1px solid rgba(10,36,24,.08);border-top:3px solid var(--gold);padding:28px 24px;border-radius:2px}
.pain b{display:block;font-family:"Noto Serif SC",serif;color:var(--navy);font-size:19px;margin-bottom:10px}
.pain p{font-size:14.5px}
.pain i{font-style:normal;color:var(--gold);font-weight:700;font-size:13px;letter-spacing:.15em}
.caps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:36px}
.cap-card{background:var(--card);border:1px solid rgba(10,36,24,.07);padding:30px 26px;border-radius:2px}
.cap-card .no{font-family:"Noto Serif SC",serif;color:var(--gold);font-size:26px;font-weight:900}
.cap-card h3{font-size:19px;margin:8px 0 10px}
.cap-card p{font-size:14.5px}
.altbg{background:#F0EAE0}

/* ===== 数据墙 ===== */
.wall{background:var(--ink);color:#F5F1E8}
.wall .sec-head h2{color:#F5F1E8}
.wall .sec-head .kicker{color:rgba(245,241,232,.6)}
.wall-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px 28px}
.stat{padding:14px 0 0;border-top:2px solid var(--gold)}
.stat.cap{border-top:1px solid rgba(199,154,60,.5)}
.stat .num{font-family:"Noto Serif SC",serif;color:var(--gold);font-size:26px;font-weight:900;line-height:1.15;white-space:nowrap}
.stat .num small{font-size:14px;color:rgba(199,154,60,.8);font-weight:600;letter-spacing:.04em}
.stat .lab{font-size:12.5px;line-height:1.6;color:rgba(245,241,232,.6);margin-top:8px}
.wall .foot-note{color:rgba(245,241,232,.45);font-size:12.5px;margin-top:24px}

/* ===== 系统卡片 ===== */
.systems{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.sys{background:#fff;border:1px solid rgba(10,36,24,.08);padding:34px 32px;border-radius:2px;display:block;position:relative;transition:transform .2s, box-shadow .2s}
.sys:hover{transform:translateY(-3px);box-shadow:0 12px 32px rgba(10,36,24,.12)}
.sys .tag{color:var(--gold);font-size:12px;letter-spacing:.3em;font-weight:700}
.sys h3{font-size:23px;margin:10px 0 8px}
.sys p{font-size:14.5px}
.sys .nums{display:flex;gap:22px;margin:16px 0 18px;flex-wrap:wrap}
.sys .nums div b{font-family:"Noto Serif SC",serif;color:var(--navy);font-size:18px}
.sys .nums div span{display:block;font-size:12px;color:var(--body)}
.sys .go{color:var(--gold);font-weight:700;font-size:14px;letter-spacing:.1em}
.sys .go::after{content:" →"}
.sys .dom{position:absolute;top:34px;right:32px;font-size:12px;color:rgba(10,36,24,.35);font-family:monospace}

/* ===== AI 问答条 ===== */
.askbar{border:2px solid var(--gold);background:linear-gradient(90deg,#fff,var(--card));padding:34px 40px;display:flex;align-items:center;justify-content:space-between;gap:24px;border-radius:2px;flex-wrap:wrap}
.askbar h3{font-size:24px}
.askbar p{font-size:14.5px;margin-top:6px}

/* ===== 文章 / 资讯 ===== */
.articles{display:grid;gap:18px;margin-bottom:36px}
.article-item{background:#fff;border:1px solid rgba(10,36,24,.08);border-left:3px solid var(--gold);padding:26px 30px;border-radius:2px;display:block}
.article-item:hover{box-shadow:0 8px 24px rgba(10,36,24,.08)}
.article-item .meta{font-size:12.5px;color:var(--gold);letter-spacing:.1em}
.article-item h3{font-size:20px;margin:8px 0}
.article-item p{font-size:14.5px}
.article{max-width:820px;background:#fff;border:1px solid rgba(10,36,24,.08);padding:48px 54px;border-radius:2px;margin-bottom:36px}
.article h1{font-size:30px;line-height:1.4;margin:14px 0 8px}
.article .meta{font-size:13px;color:var(--gold)}
.article h2{font-size:21px;margin:28px 0 10px}
.article p{margin:10px 0}
.article ul{margin:10px 0 10px 22px}
.backlink{font-size:14px}

/* ===== 六步 / 步骤 ===== */
.steps{display:grid;grid-template-columns:repeat(6,1fr);gap:10px;margin:40px 0 36px}
.step{background:var(--card);border:1px solid rgba(10,36,24,.07);padding:22px 14px;text-align:center;border-radius:2px}
.step b{font-family:"Noto Serif SC",serif;color:var(--navy);font-size:16px;display:block}
.step span{font-size:12px;color:var(--gold);letter-spacing:.2em}

/* ===== 联系表单 ===== */
.contact{background:#fff;border:1px solid rgba(10,36,24,.08);padding:44px;border-radius:2px;margin-bottom:36px}
.contact label{display:block;font-size:14px;color:var(--navy);margin:18px 0 6px;font-weight:700}
.contact input,.contact textarea{width:100%;padding:12px 14px;border:1px solid rgba(10,36,24,.2);border-radius:2px;font-size:15px;font-family:inherit;background:var(--paper)}
.contact input:focus,.contact textarea:focus{outline:2px solid var(--gold);border-color:var(--gold)}
.form-msg{margin-top:16px;font-size:14px;display:none}
.form-msg.ok{display:block;color:#1a7a4a}
.form-msg.err{display:block;color:#a83c2c}

/* ===== 页脚 ===== */
footer{background:var(--ink);color:rgba(245,241,232,.7);padding:60px 0 36px;font-size:14px}
footer .f-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
footer .f-name{font-family:"Noto Serif SC",serif;color:#F5F1E8;font-size:18px;font-weight:700}
footer .f-name span{color:var(--gold)}
footer .f-en{font-size:10px;color:var(--gold);letter-spacing:.3em;font-weight:700;margin-top:3px}
footer .f-slogan{font-size:12.5px;color:rgba(245,241,232,.55);line-height:1.7;margin-top:12px}
/* 指导单位横带：独立于四列栅格，上下金色细线 */
footer .f-orgs{display:flex;align-items:center;flex-wrap:wrap;gap:12px 18px;margin-top:34px;padding:16px 0 15px;border-top:1px solid rgba(199,154,60,.18);border-bottom:1px solid rgba(199,154,60,.18)}
footer .f-org-label{font-size:11px;color:var(--gold);letter-spacing:.32em;font-weight:700;flex-shrink:0}
footer .f-org-list{display:flex;flex-wrap:wrap;gap:8px}
footer .f-org-list span{font-size:11.5px;color:rgba(245,241,232,.78);border:1px solid rgba(199,154,60,.38);border-radius:2px;padding:4px 13px;letter-spacing:.06em;white-space:nowrap;transition:color .15s,border-color .15s}
footer .f-org-list span:hover{color:var(--gold);border-color:var(--gold)}
footer .f-cap{color:var(--gold);letter-spacing:.25em;font-size:13px;font-weight:700;margin-bottom:12px}
footer .f-links{font-size:13.5px;line-height:2.15;color:rgba(245,241,232,.8)}
footer .f-links a{display:inline}
footer a:hover{color:var(--gold)}
footer .f-ask{display:inline-block;margin-top:16px;background:var(--gold);color:var(--ink);font-weight:700;font-size:12.5px;padding:8px 18px;border-radius:2px;letter-spacing:.08em;white-space:nowrap;max-width:100%}
footer .f-ask:hover{background:#d9ad52;color:var(--ink)}
footer .f-qr{display:inline-block;background:#fff;padding:7px;border-radius:4px;line-height:0;box-shadow:0 2px 10px rgba(0,0,0,.28);transition:.15s}
footer .f-qr:hover{box-shadow:0 4px 16px rgba(199,154,60,.5);transform:translateY(-2px)}
footer .f-qr img{width:112px;height:112px;display:block}
footer .f-qr-tip{font-size:11.5px;color:rgba(245,241,232,.6);margin-top:9px;letter-spacing:.1em}
footer .f-ask{margin-top:14px}
footer .fine{border-top:none;margin-top:24px;padding-top:20px;font-size:12.5px;color:rgba(245,241,232,.45);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
footer .fine span:first-child{color:rgba(245,241,232,.6);letter-spacing:.03em}
/* 移动端专用 footer（方案B宫格 + 指导单位C卡）：桌面隐藏，≤600px 启用 */
footer .f-m{display:none}

/* ===== 悬浮问答 ===== */
.ai-fab{position:fixed;right:26px;bottom:26px;z-index:99;width:58px;height:58px;border-radius:50%;background:var(--gold);color:var(--ink);display:flex;align-items:center;justify-content:center;font-size:26px;box-shadow:0 8px 24px rgba(10,36,24,.35);border:none;cursor:pointer;font-family:"Noto Serif SC",serif}
.ai-fab:hover{transform:scale(1.06)}

/* ===== 响应式 ===== */
@media (max-width:960px){
  .hero-grid,.systems,.grid4{grid-template-columns:1fr}
  .hero h1{font-size:32px}
  .sec-head h2{font-size:26px}
  .quotebar{font-size:17px;padding:18px 22px}
  .pains,.caps,.wall-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(3,1fr)}
  .menu{display:none}
  footer .f-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:600px){
  .pains,.caps,.wall-grid,.grid4,.who{grid-template-columns:1fr}
  .steps{grid-template-columns:repeat(2,1fr)}
  section{padding:56px 0}
  .wrap{padding:0 20px}
  .article{padding:30px 22px}
  .hero h1{font-size:27px}
  .sec-head h2{font-size:23px}
  .quotebar{font-size:15.5px;padding:16px 18px}
  .eyebrow{letter-spacing:.18em}
  .hero .eyebrow{letter-spacing:.22em}
  .sysrow{grid-template-columns:repeat(2,1fr);margin-bottom:0}
  /* 2×2 布局下总线对不上位：隐藏卡片短接线与横线，只留一条居中竖线汇入底座 */
  .sysrow span::after{display:none}
  .arch .rail{height:26px}
  .arch .rail::before{display:none}
  .arch .rail::after{height:26px;background:linear-gradient(180deg,var(--gold),rgba(199,154,60,.3))}
  .arch .base{font-size:12px;letter-spacing:.12em;padding:12px 8px;line-height:2;box-shadow:none}
  .arch{padding:22px 16px 18px}
  .arch .cap{letter-spacing:.2em;gap:10px}
  .arch .cap::before,.arch .cap::after{width:22px}
  .arch .note{font-size:11px;letter-spacing:.08em;line-height:1.8}
  .askbar{padding:22px 20px}
  .askbar h3{font-size:19px}
  .stat .num{font-size:22px}
  .brand{font-size:16px}
  .article h1{font-size:24px}
  .btn{padding:12px 26px;font-size:14px}
  /* ===== 头部：全屏抽屉菜单（方案A） ===== */
  nav .navbtn{display:none}
  .m-burger{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;width:40px;height:40px;border:1px solid rgba(199,154,60,.5);border-radius:3px;background:transparent;cursor:pointer;flex-shrink:0}
  .m-burger i{display:block;width:18px;height:1.6px;background:var(--gold)}
  .m-burger.m-close{font-size:15px;color:var(--gold);line-height:1}
  .m-drawer{position:fixed;inset:0;z-index:100;background:var(--ink);color:#F5F1E8;flex-direction:column}
  body.m-open{overflow:hidden}
  body.m-open .m-drawer{display:flex}
  .m-drawer-top{display:flex;align-items:center;justify-content:space-between;height:60px;padding:0 18px;border-bottom:1px solid rgba(199,154,60,.25);flex-shrink:0}
  .m-drawer-top .m-brand{font-family:"Noto Serif SC",serif;font-weight:900;font-size:15px;color:#F5F1E8;line-height:1.2}
  .m-drawer-top .m-brand small{display:block;font-size:8.5px;color:var(--gold);letter-spacing:.3em;font-weight:700}
  .m-drawer-links{padding:10px 26px;display:flex;flex-direction:column;justify-content:center;flex:1;min-height:0;overflow-y:auto}
  .m-drawer-links a{color:#F5F1E8;font-family:"Noto Serif SC",serif;font-size:20px;font-weight:700;padding:17px 2px;border-bottom:1px solid rgba(199,154,60,.14);display:flex;align-items:center;justify-content:space-between}
  .m-drawer-links a em{font-style:normal;font-family:"Noto Sans SC",sans-serif;font-size:9px;color:var(--gold);letter-spacing:.25em;font-weight:700}
  .m-drawer-links a.on{color:var(--gold)}
  /* 四大系统直达：填充抽屉中部，免二次跳转 */
  .m-drawer-sys{padding:14px 26px 6px;flex-shrink:0}
  .m-drawer-sys>b{display:block;color:var(--gold);font-size:10.5px;letter-spacing:.3em;font-weight:700;margin-bottom:10px}
  .m-drawer-sys-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  .m-drawer-sys-grid a{border:1px solid rgba(199,154,60,.3);border-radius:3px;padding:11px 12px;font-size:12.5px;color:#F5F1E8;background:rgba(199,154,60,.06);display:flex;align-items:center;justify-content:space-between}
  .m-drawer-sys-grid a:active{border-color:var(--gold)}
  .m-drawer-sys-grid a em{font-style:normal;font-size:8.5px;color:rgba(245,241,232,.45);letter-spacing:.12em}
  .m-drawer-foot{padding:16px 26px 26px;display:flex;gap:10px;flex-shrink:0}
  .m-drawer-foot .btn{flex:1;text-align:center;padding:12px 0}
  footer{padding:44px 0 30px}
  footer .f-grid,footer .f-orgs{display:none}
  footer .f-m{display:block}
  /* 品牌行 + 圆形问竹按钮 */
  footer .f-m-top{display:flex;align-items:center;justify-content:space-between;gap:14px;padding-bottom:16px;border-bottom:1px solid rgba(199,154,60,.18)}
  footer .f-m-name{font-family:"Noto Serif SC",serif;color:#F5F1E8;font-size:15.5px;font-weight:700;line-height:1.55}
  footer .f-m-name em{display:block;font-style:normal;font-size:8.5px;color:var(--gold);letter-spacing:.28em;margin-top:4px;font-weight:700}
  footer .f-m-fab{flex-shrink:0;width:44px;height:44px;border-radius:50%;background:var(--gold);color:var(--ink);display:flex;align-items:center;justify-content:center;font-family:"Noto Serif SC",serif;font-size:20px;font-weight:700;box-shadow:0 3px 10px rgba(199,154,60,.4)}
  footer .f-m-fab:hover{color:var(--ink);transform:scale(1.06)}
  /* 4 宫格快捷入口 */
  footer .f-m-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-bottom:1px solid rgba(199,154,60,.18)}
  footer .f-m-grid a{color:#F5F1E8;text-align:center;padding:15px 2px 13px;font-size:12px;border-right:1px solid rgba(199,154,60,.12)}
  footer .f-m-grid a:last-child{border-right:none}
  footer .f-m-grid i{display:block;font-style:normal;font-size:16px;margin-bottom:6px;color:var(--gold)}
  /* 四大系统 2×2 小卡 */
  footer .f-m-sec{padding:15px 0 17px;border-bottom:1px solid rgba(199,154,60,.14)}
  footer .f-m-sec>b,footer .f-m-orgs>b{display:block;color:var(--gold);font-size:10.5px;letter-spacing:.3em;font-weight:700;margin-bottom:10px}
  footer .f-m-sys{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
  footer .f-m-sys a{min-width:0;overflow:hidden;border:1px solid rgba(199,154,60,.3);border-radius:3px;padding:9px 10px;font-size:11.5px;color:#F5F1E8;background:rgba(199,154,60,.06);line-height:1.5}
  footer .f-m-sys a:hover{border-color:var(--gold)}
  footer .f-m-sys a em{display:block;font-style:normal;font-size:9px;color:rgba(245,241,232,.45);letter-spacing:.06em;margin-top:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  /* 联系：二维码 + 问竹按钮 */
  footer .f-m-qr{display:flex;align-items:center;gap:14px;padding:15px 0;border-bottom:1px solid rgba(199,154,60,.14)}
  footer .f-m-qr .f-qr img{width:78px;height:78px}
  footer .f-m-qr .f-qr{box-shadow:none}
  footer .f-m-qr-txt{display:flex;flex-direction:column;align-items:flex-start;gap:10px;font-size:11.5px;color:rgba(245,241,232,.6);letter-spacing:.1em}
  /* 指导单位：C 方案卡片（更深底色圆角卡） */
  footer .f-m-orgs{margin-top:16px;background:#0F2E1D;border:1px solid rgba(199,154,60,.22);border-radius:8px;padding:14px 14px 12px}
  footer .f-m-orgs span{font-size:11.5px;color:rgba(245,241,232,.72);margin-right:12px}
  footer .f-m-orgs span::after{content:"·";color:var(--gold);margin-left:12px}
  footer .f-m-orgs span:last-child::after{content:""}
  footer .f-grid{grid-template-columns:1fr;gap:28px}
  footer .fine{margin-top:20px;padding-top:16px}
  footer .f-ask{font-size:12px;padding:8px 16px;letter-spacing:.04em}
  footer .fine{font-size:11.5px;gap:6px;flex-direction:column;align-items:center;justify-content:center;text-align:center}
  .ai-fab{right:18px;bottom:18px;width:50px;height:50px;font-size:22px}
}