/* 自托管 Inter(Latin 子集 48KB,可变字重) —— 仅作用于拉丁字母/数字 */
@font-face{
  font-family:'Inter';
  src:url('/fonts/inter-var.woff2') format('woff2-variations');
  font-weight:100 900;font-style:normal;font-display:swap;
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
/* 道化天下企服 · 官网样式 v2(可读性优化版)
   原则:降低刺眼对比、放大正文行高、加大留白、正文限宽、弱化边框与阴影 */
:root{
  --pri:#123a6b;        /* 主色(标题/深底) */
  --pri-2:#1d5490;
  --pri-3:#0f2f57;
  --acc:#9a7a10;        /* 白底上的强调(足够对比度) */
  --acc-2:#c9a227;      /* 深底上的强调 */
  --ink:#2b3648;        /* 正文色:近黑但不刺眼 */
  --ink-strong:#1c2740;
  --muted:#5f6c80;      /* 次要文字(白底对比 ≈5.3:1) */
  --line:#e9eef4;       /* 边框:更柔和 */
  --line-2:#dfe6ee;
  --bg:#f6f8fb;         /* 交替区块底色:暖灰而非纯白 */
  --card:#ffffff;
  --radius:16px;
  --shadow:0 6px 22px rgba(16,24,40,.06);
  --shadow-hover:0 12px 30px rgba(16,24,40,.10);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;color:var(--ink);background:var(--card);
  font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC","WenQuanYi Micro Hei",Arial,sans-serif;
  font-kerning:normal;
  font-size:16.5px;line-height:1.85;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
p{margin:0 0 1em}
a{color:var(--pri-2);text-decoration:none;transition:color .15s}
a:hover{color:var(--acc)}
h1,h2,h3,h4{color:var(--ink-strong);line-height:1.35;text-wrap:balance;margin:0 0 .5em}
img{max-width:100%;height:auto}
.container-dh{max-width:1140px;margin:0 auto;padding:0 20px}

/* 顶栏 */
.topbar{background:var(--pri-3);color:#c3d3e8;font-size:13.5px;padding:8px 0;line-height:1.6}
.topbar .container-dh{display:flex;justify-content:space-between;flex-wrap:wrap;gap:6px 18px}
.topbar a{color:#c3d3e8}
.topbar a:hover{color:#fff}

/* 导航 */
.navbar-dh{background:rgba(255,255,255,.96);backdrop-filter:saturate(140%) blur(6px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.navbar-dh .inner{display:flex;align-items:center;justify-content:space-between;height:74px;gap:16px}
.brand{display:flex;align-items:center;gap:11px;font-weight:700;font-size:19.5px;color:var(--pri);letter-spacing:.5px}
.brand .mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--pri-2),var(--pri));color:#fff;display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:700}
.brand small{display:block;font-size:11.5px;color:var(--muted);font-weight:400;letter-spacing:1.2px;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:24px;font-size:15.5px;flex-wrap:nowrap}
.nav-links a,.nav-links .nav-trigger{color:var(--ink);padding:6px 0;position:relative;white-space:nowrap;line-height:1.85}
.nav-trigger{display:inline-flex;align-items:center;gap:3px;cursor:default}
.nav-links a.active,.nav-links a:hover{color:var(--pri)}
.nav-links a.active:after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--acc-2)}

/* 按钮 */
.btn-dh{display:inline-block;padding:11px 24px;border-radius:10px;font-weight:600;font-size:15.5px;border:0;cursor:pointer;transition:.18s;line-height:1.5}
.btn-pri{background:linear-gradient(135deg,var(--pri-2),var(--pri));color:#fff}
.btn-pri:hover{color:#fff;transform:translateY(-1px);box-shadow:0 8px 18px rgba(18,58,107,.22)}
.btn-acc{background:linear-gradient(135deg,#d9b23f,var(--acc-2));color:#3a2e00}
.btn-acc:hover{color:#3a2e00;transform:translateY(-1px);box-shadow:0 8px 18px rgba(201,162,39,.28)}
.btn-line{border:1px solid var(--line-2);color:var(--pri);background:#fff}
.btn-line:hover{background:#fff;border-color:var(--pri-2);color:var(--pri)}
.w-100{width:100%}

/* Hero:降低刺眼度,加柔和光晕 */
.hero{background:linear-gradient(135deg,#123a6b 0%,#1b4f88 58%,#255c99 100%);color:#eef4fb;padding:96px 0 88px;position:relative;overflow:hidden}
.hero:after{content:"";position:absolute;right:-140px;top:-100px;width:460px;height:460px;border-radius:50%;background:radial-gradient(circle,rgba(201,162,39,.22),transparent 68%)}
.hero h1{font-size:clamp(28px,3.4vw,42px);line-height:1.38;font-weight:700;margin:0 0 20px;color:#fff;letter-spacing:.5px}
.hero p.lead{font-size:17.5px;line-height:1.9;color:#d6e4f5;max-width:660px;margin-bottom:30px;font-weight:400}
.hero .hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero .trust{display:flex;gap:34px;margin-top:52px;flex-wrap:wrap;color:#bdd2ea;font-size:14.5px;line-height:1.6}
.hero .trust b{display:block;color:#fff;font-size:22px;font-weight:700;margin-bottom:2px}

/* 区块 */
section{padding:84px 0}
section.alt{background:var(--bg)}
.sec-head{text-align:center;margin-bottom:52px}
.sec-head .kicker{color:var(--acc);font-weight:700;letter-spacing:2.5px;font-size:12.5px;text-transform:uppercase}
.sec-head h2{font-size:clamp(23px,2.4vw,31px);font-weight:700;color:var(--pri);margin:10px 0 14px}
.sec-head p{color:var(--muted);font-size:16.5px;max-width:640px;margin:0 auto;line-height:1.85}

/* 卡片 */
.grid{display:grid;gap:24px}
.g-4{grid-template-columns:repeat(4,1fr)}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-2{grid-template-columns:repeat(2,1fr)}
.card-dh{display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:.18s;color:inherit}
.card-dh:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--line-2)}
.card-dh .ico{width:54px;height:54px;border-radius:14px;background:#eef4fc;color:var(--pri);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:16px}
.card-dh h3{font-size:18.5px;font-weight:700;margin:0 0 10px;color:var(--pri);line-height:1.5}
.card-dh p{color:var(--muted);font-size:15.5px;line-height:1.8;margin:0 0 14px}
.card-dh .more{font-size:15px;font-weight:600;color:var(--acc)}

/* 流程 */
.step{text-align:center;padding:0 8px}
.step .n{width:54px;height:54px;border-radius:50%;background:var(--pri);color:#fff;font-weight:700;font-size:19px;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;box-shadow:0 6px 16px rgba(18,58,107,.18)}
.step h4{font-size:16.5px;font-weight:700;margin:0 0 8px}
.step p{color:var(--muted);font-size:15.5px;line-height:1.8;margin:0}

/* 资讯列表 */
.list-dh{list-style:none;padding:0;margin:0}
.list-dh li{padding:18px 6px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:24px;align-items:baseline;transition:background .15s}
.list-dh li:hover{background:#fafcfe}
.list-dh li a{color:var(--ink-strong);font-size:16.5px;line-height:1.7}
.list-dh li a:hover{color:var(--pri)}
.list-dh time{color:var(--muted);font-size:14px;white-space:nowrap;font-variant-numeric:tabular-nums}

/* FAQ */
.faq-item{border:1px solid var(--line);border-radius:12px;margin-bottom:14px;background:#fff;overflow:hidden}
.faq-q{padding:18px 22px;font-weight:600;color:var(--pri);cursor:pointer;display:flex;justify-content:space-between;gap:16px;font-size:16.5px;line-height:1.7}
.faq-q span:last-child{color:var(--muted);font-weight:400;font-size:13.5px;flex:0 0 auto}
.faq-a{padding:2px 22px 20px;color:var(--ink);font-size:16px;line-height:1.9}

/* 页面头 */
.page-head{background:linear-gradient(135deg,#123a6b,#215a95);color:#eaf1fa;padding:64px 0}
.page-head h1{font-size:clamp(24px,2.6vw,32px);font-weight:700;margin:0 0 10px;color:#fff}
.page-head p{margin:0;color:#cededf;font-size:16.5px;line-height:1.85;max-width:720px}

/* 正文:限宽 + 卡片化 + 大行高 */
.prose{font-size:17px;line-height:1.95;color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px 38px;max-width:100%}
.prose h2{font-size:21px;color:var(--pri);margin:34px 0 14px;padding-left:12px;border-left:3px solid var(--acc-2)}
.prose h2:first-child{margin-top:4px}
.prose h3{font-size:18px;color:var(--pri);margin:26px 0 12px}
.prose p{margin:0 0 1.1em}
.prose ul,.prose ol{padding-left:24px;margin:0 0 1.2em}
.prose li{margin:.45em 0;line-height:1.9}
.prose img{border-radius:12px;margin:6px 0 14px}
.prose blockquote{margin:1.2em 0;padding:12px 18px;background:var(--bg);border-left:3px solid var(--line-2);color:var(--muted);border-radius:0 8px 8px 0}
.prose table{width:100%;border-collapse:collapse;font-size:16px}
.prose th,.prose td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.prose th{background:var(--bg)}

/* 标签 / 元信息 */
.tag{display:inline-block;font-size:13px;color:var(--pri-2);background:#eef4fc;border-radius:999px;padding:4px 13px;margin:0 8px 8px 0;line-height:1.6;transition:.15s}
a.tag:hover{background:#e2edfa}
.meta{color:var(--muted);font-size:14px}

/* CTA */
.cta{background:linear-gradient(135deg,#123a6b,#1f5691);color:#eef4fb;border-radius:20px;padding:48px;display:flex;justify-content:space-between;align-items:center;gap:28px;flex-wrap:wrap}
.cta h3{margin:0 0 10px;font-size:25px;font-weight:700;color:#fff}
.cta p{margin:0;color:#d3e2f3;font-size:16.5px;line-height:1.85}

/* 表单 */
.form-row{margin-bottom:18px}
.form-row label{display:block;font-weight:600;font-size:15px;margin-bottom:8px;color:#33415c}
.form-row input,.form-row textarea,.form-row select{width:100%;padding:12px 14px;border:1px solid var(--line-2);border-radius:10px;font-size:16px;font-family:inherit;color:var(--ink);background:#fdfefe;line-height:1.6}
.form-row input:focus,.form-row textarea:focus,.form-row select:focus{outline:0;border-color:var(--pri-2);background:#fff;box-shadow:0 0 0 4px rgba(29,84,144,.10)}
.form-row textarea{resize:vertical}

/* 页脚:深底但降低对比刺激 */
.footer{background:var(--pri-3);color:#a8bdd7;padding:60px 0 26px;font-size:15px;line-height:1.85}
.footer h5{color:#fff;font-size:15.5px;font-weight:700;margin:0 0 16px;letter-spacing:.5px}
.footer a{color:#a8bdd7}
.footer a:hover{color:#fff}
.footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:36px}
.footer .bottom{border-top:1px solid rgba(255,255,255,.10);margin-top:38px;padding-top:20px;font-size:13.5px;color:#93a9c4;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}

/* 分页 */
ul.pagination{display:flex;gap:8px;justify-content:center;margin-top:40px;padding:0;list-style:none}
ul.pagination li a,ul.pagination li span{padding:8px 15px;border:1px solid var(--line-2);border-radius:9px;font-size:15px;color:var(--ink);display:inline-block}
ul.pagination li.active span{background:var(--pri);border-color:var(--pri);color:#fff}
ul.pagination li.disabled span{color:#b3bdcb}

/* 提示条 */
.alert{border-radius:12px;padding:14px 18px;margin:18px auto;max-width:1100px;font-size:15.5px;line-height:1.7}
.alert-success{background:#f0f9f3;border:1px solid #cfe9d8;color:#22603a}
.alert-danger{background:#fdf1f1;border:1px solid #f3d3d3;color:#8f2a2a}

@media (max-width:992px){
  .g-4{grid-template-columns:repeat(2,1fr)}
  .g-3{grid-template-columns:repeat(2,1fr)}
  .footer .cols{grid-template-columns:1fr 1fr}
  .nav-links{display:none}
  section{padding:64px 0}
}
@media (max-width:640px){
  body{font-size:16px;line-height:1.85}
  .g-4,.g-3,.g-2{grid-template-columns:1fr}
  .footer .cols{grid-template-columns:1fr}
  section{padding:52px 0}
  .hero{padding:64px 0 56px}
  .prose{padding:22px 20px;font-size:16.5px}
  .card-dh{padding:22px}
}

/* 布局:主内容 + 侧栏(移动端自动折叠) */
.layout-side{grid-template-columns:minmax(0,2.2fr) minmax(0,1fr)}
.layout-contact{grid-template-columns:minmax(0,1fr) minmax(0,1.25fr)}
@media (max-width:992px){
  .layout-side,.layout-contact{grid-template-columns:1fr}
}
/* 正文阅读宽度:长文按 68~76 字符放宽,居中更舒适 */
.prose{max-width:900px}
.layout-side .prose{max-width:100%}

/* 导航:业务线二级菜单(hover)+ 移动端折叠菜单 */
.nav-item{position:relative;display:flex;align-items:center}
.nav-item .caret{font-size:11px;color:var(--muted);line-height:1}
.nav-item .nav-trigger.active{color:var(--pri)}
.nav-item:hover .nav-trigger{color:var(--pri)}
.dropdown-more{border-top:1px solid var(--line);margin-top:6px;padding-top:11px!important;color:var(--pri)!important;font-weight:600;font-size:14.5px!important}
.nav-item .dropdown{position:absolute;top:calc(100% + 10px);left:-10px;min-width:262px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 14px 34px rgba(16,24,40,.12);padding:8px;opacity:0;visibility:hidden;transform:translateY(-4px);transition:.16s;z-index:60}
.nav-item:hover .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.nav-item .dropdown a{display:flex;gap:11px;align-items:flex-start;padding:11px 13px;border-radius:10px;color:var(--ink)}
.nav-item .dropdown a:hover{background:var(--bg)}
.nav-item .dropdown .d-ico{font-size:19px;line-height:1.3}
.nav-item .dropdown strong{display:block;font-size:15.5px;color:var(--pri);font-weight:700}
.nav-item .dropdown small{display:block;font-size:12.5px;color:var(--muted);line-height:1.6;margin-top:2px}
.nav-mobile{display:none;position:relative}
.nav-mobile summary{list-style:none;cursor:pointer;font-size:15.5px;color:var(--pri);font-weight:600;padding:8px 12px;border:1px solid var(--line-2);border-radius:10px}
.nav-mobile summary::-webkit-details-marker{display:none}
.nav-mobile-panel{position:absolute;right:0;top:calc(100% + 8px);min-width:280px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 14px 34px rgba(16,24,40,.14);padding:10px;z-index:80}
.nav-mobile-panel a{display:block;padding:10px 12px;border-radius:9px;color:var(--ink);font-size:15.5px}
.nav-mobile-panel a small{display:block;font-size:12.5px;color:var(--muted);margin-top:2px}
.nav-mobile-panel a:hover{background:var(--bg)}
.nav-mobile-panel .m-cta{background:linear-gradient(135deg,var(--pri-2),var(--pri));color:#fff;text-align:center;font-weight:600;margin-top:8px}
@media (max-width:1150px){
  .nav-mobile{display:block}
  .nav-cta{display:none}
  .nav-links{display:none}
  .navbar-dh .inner{height:66px}
}
@media (min-width:1151px) and (max-width:1300px){
  .nav-links{gap:16px;font-size:15px}
  .brand small{display:none}
}
/* 业务线入口大卡(首页) */
.line-card{display:flex;gap:18px;align-items:flex-start;padding:30px}
.line-card .ico{width:58px;height:58px;border-radius:15px;background:#eef4fc;display:flex;align-items:center;justify-content:center;font-size:27px;flex:0 0 auto;margin:0}
.line-card h3{margin-bottom:6px}
.line-card .tagline{color:var(--acc);font-weight:600;font-size:14px;margin-bottom:8px}
.line-card ul{list-style:none;padding:0;margin:10px 0 14px}
.line-card ul li{font-size:14.5px;color:var(--muted);padding:3px 0 3px 18px;position:relative}
.line-card ul li:before{content:"✓";position:absolute;left:0;color:var(--acc-2);font-weight:700}

/* ---- 兼容补齐(后续任务新增的类) ---- */
.g-strip{display:none}
.hero .kicker{color:var(--acc-2);letter-spacing:.14em;font-weight:700;font-size:12.5px;margin-bottom:12px;text-transform:uppercase}
.hero .hero-sum{color:#d6e4f5;max-width:760px;font-size:16.5px;line-height:1.9}
.tag-hot{color:#b42318;background:#fdf1f1}
.tag-ok{color:#22603a;background:#f0f9f3}
/* 数字等宽 + 中英混排断行 */
.list-dh time,.meta,.table,.stat,.hero .trust,.prose table{font-variant-numeric:tabular-nums}
p,li,td,th,h1,h2,h3,h4,dd,.card-dh{overflow-wrap:break-word;word-break:break-word}
@media (prefers-reduced-motion:reduce){
  .card-dh,.btn-dh,a{transition:none!important}
  .card-dh:hover{transform:none}
}