/* ============================================================
   DUOMI 官网 · 子页面共享样式 V1.2「中国红」
   与首页 V1.1 纯色红体系一致：无渐变、全平涂、暖金唯一点缀
   引用方式：<link rel="stylesheet" href="/home/assets/site.css">
   ============================================================ */
:root{
  --red:#C2180C;
  --red-bright:#D02312;
  --red-deep:#9A1207;
  --red-dark:#7C0E05;
  --red-night:#4C0803;
  --tint:#FAEDE8;
  --tint-2:#F5DED6;
  --gold:#F7C948;
  --gold-deep:#E0AC1F;
  --cream:#FFF7F3;
  --card:#FFFFFF;
  --line:#F0D2C9;
  --t1:#420B05;
  --t2:#7C2A1F;
  --t3:#A97B70;
  --shadow-lg:0 24px 60px -18px rgba(90,10,4,.24);
  --shadow-md:0 10px 30px -12px rgba(90,10,4,.16);
  --r-lg:20px;
  --r-md:14px;
  --ease:cubic-bezier(.22,1,.36,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei UI","Microsoft YaHei","Source Han Sans SC",-apple-system,"Segoe UI",sans-serif;
  background:var(--red);color:var(--t1);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
ul{list-style:none}
.wrap{width:1200px;max-width:calc(100vw - 48px);margin:0 auto}
.num{font-variant-numeric:tabular-nums;letter-spacing:-.02em}

/* ---------- 顶部导航（与首页一致） ---------- */
.nav{
  position:sticky;top:0;z-index:100;
  background:rgba(154,18,7,.94);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,247,243,.14);
}
.nav-in{display:flex;align-items:center;height:68px;gap:36px}
.logo{display:flex;align-items:center;gap:10px;margin-right:4px}
.logo-mark{
  width:34px;height:34px;border-radius:10px;background:var(--gold);
  display:grid;place-items:center;color:var(--red-night);font-weight:900;font-size:17px;
  box-shadow:0 6px 18px rgba(0,0,0,.28);
}
.logo-name{color:var(--cream);font-weight:800;font-size:18px;letter-spacing:.02em}
.logo-name em{font-style:normal;color:var(--gold);font-weight:600;font-size:11px;display:block;letter-spacing:.24em;margin-top:1px}
.nav-links{display:flex;gap:30px;flex:1}
.nav-links>div,.nav-links>a{position:relative}
.nav-links a{color:rgba(255,247,243,.75);font-size:14.5px;font-weight:500;transition:color .2s var(--ease)}
.nav-links a:hover{color:#fff}
.nav-links a.on{color:var(--gold);font-weight:700}
.has-sub>a::after{content:"▾";font-size:10px;margin-left:5px;opacity:.7}
.sub-menu{
  position:absolute;top:calc(100% + 14px);left:-24px;width:300px;
  background:var(--red-deep);border:1px solid rgba(255,247,243,.16);border-radius:14px;
  box-shadow:0 28px 60px -14px rgba(0,0,0,.5);padding:10px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:.25s var(--ease);
}
.has-sub:hover .sub-menu{opacity:1;visibility:visible;transform:none}
.sub-menu a{
  display:flex;align-items:center;gap:12px;padding:11px 14px;border-radius:9px;
  color:rgba(255,247,243,.82);font-size:13.5px;line-height:1.4;
}
.sub-menu a:hover{background:rgba(0,0,0,.28);color:#fff}
.sub-menu a i{font-style:normal;font-size:17px;width:26px;text-align:center;flex:none}
.sub-menu a b{font-weight:700;display:block}
.sub-menu a span{font-size:11px;color:rgba(255,247,243,.45);display:block}
.nav-cta{display:flex;gap:14px;align-items:center}
.btn-ghost{color:rgba(255,247,243,.9);font-size:14px;font-weight:500;padding:9px 18px;border:1px solid rgba(255,247,243,.32);border-radius:99px;transition:.2s var(--ease)}
.btn-ghost:hover{border-color:var(--cream);color:#fff;background:rgba(255,255,255,.06)}
.btn-primary{
  background:var(--gold);color:var(--red-night);font-size:14px;font-weight:800;
  padding:10px 24px;border-radius:99px;border:0;cursor:pointer;
  box-shadow:0 8px 22px rgba(0,0,0,.28);transition:.25s var(--ease);
}
.btn-primary:hover{transform:translateY(-2px);background:#FFD75C;box-shadow:0 14px 30px rgba(0,0,0,.32)}
.btn-light{
  background:var(--cream);color:var(--red-deep);font-size:14.5px;font-weight:800;
  padding:11px 26px;border-radius:99px;border:0;cursor:pointer;transition:.25s var(--ease);
  box-shadow:0 10px 26px rgba(0,0,0,.22);
}
.btn-light:hover{transform:translateY(-2px);color:var(--red);box-shadow:0 16px 34px rgba(0,0,0,.28)}

/* ---------- 子页 Page Hero（主红平铺 + 网格纹理） ---------- */
.page-hero{
  position:relative;color:var(--cream);background:var(--red);overflow:hidden;
  padding:84px 0 72px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,247,243,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,247,243,.05) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(800px 500px at 30% 0%,#000 30%,transparent 75%);
}
.crumb{
  position:relative;display:inline-flex;align-items:center;gap:10px;
  font-size:12.5px;color:rgba(255,247,243,.55);margin-bottom:26px;letter-spacing:.04em;
}
.crumb a{color:rgba(255,247,243,.75)}
.crumb a:hover{color:#fff}
.crumb i{font-style:normal;color:var(--gold);font-size:10px}
.page-hero .hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--gold);font-weight:700;letter-spacing:.06em;
  border:1px solid rgba(247,201,72,.5);border-radius:99px;padding:7px 16px;
  background:rgba(0,0,0,.14);margin-bottom:24px;
}
.page-hero h1{
  position:relative;font-size:46px;line-height:1.22;font-weight:900;color:#fff;margin-bottom:20px;
}
.page-hero h1 .hl{color:var(--gold)}
.page-hero .lead{
  position:relative;font-size:16.5px;line-height:1.9;color:rgba(255,247,243,.82);max-width:680px;
}
.page-hero .hero-btns{display:flex;gap:16px;margin-top:36px}
.page-hero .btn-light{font-size:15px;padding:13px 32px}
.page-hero .link-demo{display:inline-flex;align-items:center;gap:8px;color:rgba(255,247,243,.85);font-size:15px;align-self:center}
.page-hero .link-demo:hover{color:#fff}

/* ---------- 数据带（深红） ---------- */
.stat-band{background:var(--red-deep);padding:34px 0}
.stat-band .row{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.sb-item{padding:0 28px;border-left:1px solid rgba(255,247,243,.16)}
.sb-item:first-child{border-left:0;padding-left:0}
.sb-item b{display:block;font-size:30px;font-weight:900;color:var(--gold);letter-spacing:-.01em}
.sb-item b em{font-style:normal;font-size:15px;font-weight:700;margin-left:2px}
.sb-item span{display:block;margin-top:7px;font-size:12.5px;color:rgba(255,247,243,.6);line-height:1.6}

/* ---------- 章节通用 ---------- */
section{padding:92px 0}
.sec-head{max-width:660px;margin-bottom:54px}
.sec-kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:800;color:var(--red);letter-spacing:.18em;margin-bottom:18px}
.sec-kicker::before{content:"";width:22px;height:3px;background:var(--red);border-radius:2px}
h2{font-size:36px;font-weight:900;letter-spacing:.01em;line-height:1.3;margin-bottom:16px;color:var(--t1)}
.sec-sub{font-size:16px;line-height:1.9;color:var(--t2)}
.sec-center{margin-left:auto;margin-right:auto;text-align:center}
.sec-center .sec-kicker{justify-content:center}
.bg-white{background:#FFFDFC}
.bg-tint{background:var(--tint)}

/* ---------- 功能块（左文右图 / 交替） ---------- */
.feat{display:grid;grid-template-columns:1fr 520px;gap:64px;align-items:center}
.feat.rev{grid-template-columns:520px 1fr}
.feat h3{font-size:26px;font-weight:900;margin-bottom:16px;color:var(--t1)}
.feat .desc{font-size:15px;line-height:1.95;color:var(--t2);margin-bottom:24px}
.feat ul{display:flex;flex-direction:column;gap:12px}
.feat li{font-size:14px;color:var(--t2);display:flex;gap:11px;align-items:baseline;line-height:1.75}
.feat li::before{content:"✓";color:var(--red);font-weight:900;flex:none}
.feat li b{color:var(--t1);font-weight:700}
.feat li .tag-g{color:var(--gold-deep);font-weight:800;font-size:12px;background:var(--tint);border:1px solid var(--line);border-radius:99px;padding:2px 10px;margin-left:6px;white-space:nowrap}

/* ---------- 可视面板（暗红 Mock 风格，子页通用） ---------- */
.vpanel{
  background:var(--red-dark);border:1px solid rgba(255,247,243,.16);border-radius:16px;
  box-shadow:0 36px 80px -24px rgba(35,3,1,.7);overflow:hidden;
}
.vp-bar{display:flex;align-items:center;gap:8px;padding:12px 16px;background:rgba(0,0,0,.22);border-bottom:1px solid rgba(255,247,243,.1)}
.vp-bar i{width:10px;height:10px;border-radius:50%}
.vp-bar i:nth-child(1){background:#FFD0C4}.vp-bar i:nth-child(2){background:var(--gold)}.vp-bar i:nth-child(3){background:#FFF7F3}
.vp-bar span{margin-left:10px;font-size:11.5px;color:rgba(255,247,243,.5);letter-spacing:.05em}
.vp-body{padding:22px;display:flex;flex-direction:column;gap:12px}
.vp-row{
  display:flex;align-items:center;gap:14px;background:rgba(255,247,243,.06);
  border:1px solid rgba(255,247,243,.12);border-radius:11px;padding:14px 16px;
}
.vp-row .ico{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;font-size:17px;flex:none;background:rgba(0,0,0,.28)}
.vp-row b{font-size:13px;color:#fff;display:block}
.vp-row span{font-size:11px;color:rgba(255,247,243,.5)}
.vp-row .tag{margin-left:auto;font-size:10.5px;color:var(--gold);border:1px solid rgba(247,201,72,.45);padding:2px 9px;border-radius:99px;flex:none}
.vp-row .tag.ok{color:#8FE8C0;border-color:rgba(143,232,192,.4)}
.vp-prog{height:5px;border-radius:99px;background:rgba(0,0,0,.3);overflow:hidden}
.vp-prog i{display:block;height:100%;background:var(--gold);border-radius:99px}
.vp-chips{display:flex;gap:6px;flex-wrap:wrap}
.chip{font-size:10px;padding:3px 9px;border-radius:6px;font-weight:600;background:rgba(0,0,0,.26);color:rgba(255,247,243,.9);border:1px solid rgba(255,247,243,.18)}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;counter-reset:step}
.steps.steps-3{grid-template-columns:repeat(3,1fr)}
.steps::before{content:"";position:absolute;top:27px;left:8%;right:8%;height:2px;background:var(--red);opacity:.22}
.step{padding:0 26px;position:relative}
.step-no{
  width:54px;height:54px;border-radius:16px;background:#fff;border:2px solid var(--line);
  display:grid;place-items:center;font-size:20px;font-weight:900;color:var(--red);
  margin-bottom:24px;position:relative;z-index:1;box-shadow:0 8px 20px rgba(194,24,12,.14);
  counter-increment:step;
}
.step-no::after{content:counter(step,decimal-leading-zero)}
.step:hover .step-no{background:var(--red);color:#fff;border-color:transparent;transition:.3s var(--ease)}
.step h4{font-size:17px;font-weight:800;margin-bottom:10px;color:var(--t1)}
.step p{font-size:13.5px;line-height:1.85;color:var(--t2)}
.step .tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}
.step .tags i{font-style:normal;font-size:11px;color:var(--red);background:var(--tint);border:1px solid var(--line);padding:3px 10px;border-radius:99px}

/* ---------- 卡片网格（能力清单 / FAQ / 案例通用） ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card-grid.g2{grid-template-columns:repeat(2,1fr)}
.icard{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px;position:relative;overflow:hidden;transition:.35s var(--ease);
}
.icard:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:var(--red)}
.icard .c-ico{
  width:46px;height:46px;border-radius:12px;display:grid;place-items:center;
  font-size:21px;margin-bottom:18px;background:var(--tint-2);
}
.icard h4{font-size:16.5px;font-weight:800;margin-bottom:10px;color:var(--t1)}
.icard p{font-size:13.5px;line-height:1.85;color:var(--t2)}
.icard ul{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.icard li{font-size:12.5px;color:var(--t2);display:flex;gap:8px;align-items:baseline}
.icard li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--red);flex:none;transform:translateY(-2px)}

/* ---------- 计费/规则表 ---------- */
.rate-table{width:100%;border-collapse:separate;border-spacing:0;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden}
.rate-table th{
  background:var(--red-deep);color:var(--cream);font-size:13.5px;font-weight:700;
  text-align:left;padding:16px 24px;letter-spacing:.03em;
}
.rate-table td{padding:15px 24px;font-size:14px;color:var(--t2);border-top:1px solid var(--line)}
.rate-table td b{color:var(--t1);font-weight:700}
.rate-table td .g{color:var(--gold-deep);font-weight:800}
.rate-table tr:hover td{background:#FFF9F6}

/* ---------- FAQ ---------- */
.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq{border:1px solid var(--line);border-radius:var(--r-md);background:var(--card);overflow:hidden;transition:.3s var(--ease)}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;
  padding:22px 26px;font-size:16px;font-weight:700;color:var(--t1);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary .q-ico{
  width:26px;height:26px;border-radius:8px;background:var(--tint-2);color:var(--red);
  display:grid;place-items:center;font-size:14px;font-weight:900;flex:none;transition:.3s var(--ease);
}
.faq details[open] .q-ico{background:var(--red);color:#fff;transform:rotate(45deg)}
.faq details[open] summary{color:var(--red)}
.faq .ans{padding:0 26px 24px 68px;font-size:14.5px;line-height:1.95;color:var(--t2)}

/* ---------- 底部 CTA（亮红终章） ---------- */
.final{background:var(--red-bright);color:var(--cream);padding:104px 0;text-align:center}
.final h2{font-size:40px;color:#fff}
.final p{font-size:16px;color:rgba(255,247,243,.78);margin:18px 0 38px}
.final .btns{display:flex;gap:18px;justify-content:center}
.final .btn-light{font-size:15.5px;padding:15px 40px}
.final .link-demo{color:rgba(255,247,243,.85);font-size:15px;align-self:center}
.final .link-demo:hover{color:#fff}

/* ---------- Footer（最暗红） ---------- */
footer{background:var(--red-night);color:rgba(255,247,243,.6);padding:64px 0 36px;border-top:1px solid rgba(255,247,243,.1)}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px}
.foot-brand p{font-size:13px;line-height:1.9;margin-top:18px;max-width:280px}
.foot-col h5{color:#fff;font-size:14px;font-weight:700;margin-bottom:20px;letter-spacing:.04em}
.foot-col a{display:block;font-size:13px;padding:6px 0;transition:color .2s}
.foot-col a:hover{color:#fff}
.foot-base{display:flex;justify-content:space-between;align-items:center;padding-top:28px;border-top:1px solid rgba(255,247,243,.1);font-size:12.5px;color:rgba(255,247,243,.4)}

/* ---------- 相邻子页导航 ---------- */
.next-pages{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.np{
  display:flex;align-items:center;gap:14px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);padding:20px 22px;transition:.3s var(--ease);
}
.np:hover{border-color:var(--red);transform:translateY(-3px);box-shadow:var(--shadow-md)}
.np i{font-style:normal;font-size:22px;flex:none}
.np b{font-size:14.5px;font-weight:800;color:var(--t1);display:block}
.np span{font-size:11.5px;color:var(--t3)}
.np .arrow{margin-left:auto;color:var(--red);font-weight:900;font-size:16px}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}

/* ---------- 响应式 ---------- */
@media (max-width:1240px){
  .nav-links{display:none}
  .feat,.feat.rev{grid-template-columns:1fr;gap:40px}
  .feat.rev .vpanel{order:-1}
  .stat-band .row{grid-template-columns:1fr 1fr;gap:24px 0}
  .sb-item:nth-child(3){border-left:0;padding-left:0}
  .card-grid,.card-grid.g2,.next-pages{grid-template-columns:1fr 1fr}
  .steps,.steps.steps-3{grid-template-columns:1fr 1fr;gap:40px 0}
  .steps::before{display:none}
  .page-hero h1{font-size:36px}
  .foot-grid{grid-template-columns:1fr 1fr 1fr}
}
@media (max-width:768px){
  .page-hero h1{font-size:30px}h2{font-size:27px}
  .card-grid,.card-grid.g2,.next-pages,.steps,.steps.steps-3{grid-template-columns:1fr}
  .stat-band .row{grid-template-columns:1fr}
  .sb-item{border-left:0;padding-left:0}
  .foot-grid{grid-template-columns:1fr 1fr}
  .rate-table{display:block;overflow-x:auto}
}