@charset "utf-8";
/* ==========================================================================
   北京同林科技 · 臭氧检测仪官网  设计系统
   域名：www.bjchouyang.com
   字体：仅用 Windows 系统自带字体（微软雅黑 / Segoe UI / Consolas），不加载任何外链字体
   ========================================================================== */

:root{
  --c-navy:#0B2545;
  --c-navy-600:#123A6B;
  --c-blue:#185FA5;
  --c-blue-400:#378ADD;
  --c-blue-200:#85B7EB;
  --c-blue-100:#E6F1FB;
  --c-blue-50:#F3F8FD;
  --c-teal:#0F6E56;
  --c-teal-100:#E1F5EE;
  --c-teal-200:#9FE1CB;
  --c-red:#E24B4A;
  --c-amber:#854F0B;
  --c-amber-100:#FAEEDA;
  --c-text:#16202E;
  --c-text-2:#5A6B7F;
  --c-text-3:#8B9AAB;
  --c-line:#DCE4ED;
  --c-line-2:#EDF1F6;
  --c-bg:#F5F7FA;
  --c-white:#FFFFFF;

  --font-sans:"Microsoft YaHei","微软雅黑","Segoe UI",Tahoma,Arial,sans-serif;
  --font-mono:Consolas,"Courier New",Courier,monospace;

  --r-sm:6px; --r-md:10px; --r-lg:14px; --r-xl:20px;
  --sh-1:0 1px 2px rgba(16,40,70,.06),0 4px 12px rgba(16,40,70,.05);
  --sh-2:0 8px 30px rgba(16,40,70,.10);
  --wrap:1200px;
  --gap:24px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:15px;
  line-height:1.75;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%;height:auto;display:block;}
picture{display:block;width:100%;}
a{color:var(--c-blue);text-decoration:none;}
a:hover{color:var(--c-blue-400);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--c-navy);}
p{margin:0 0 12px;}
table{border-collapse:collapse;width:100%;}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 20px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--c-navy);color:#B9C9DC;font-size:13px;}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;min-height:36px;gap:12px;}
.topbar a{color:#B9C9DC;}
.topbar a:hover{color:#fff;}
.topbar .tb-right{display:flex;gap:18px;align-items:center;}
.topbar strong{color:#fff;font-family:var(--font-mono);font-weight:700;letter-spacing:.3px;}

/* ---------- 导航 ---------- */
.nav{background:var(--c-white);border-bottom:1px solid var(--c-line);position:sticky;top:0;z-index:50;}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;min-height:66px;gap:20px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand .mark{width:38px;height:38px;flex:0 0 38px;}
.brand .bt{line-height:1.2;}
.brand .bt b{display:block;font-size:17px;color:var(--c-navy);letter-spacing:.5px;}
.brand .bt span{display:block;font-size:11px;color:var(--c-text-3);letter-spacing:1.4px;text-transform:uppercase;font-family:var(--font-mono);}
.nav-list{display:flex;gap:4px;align-items:center;}
.nav-list a{display:block;padding:8px 13px;font-size:14.5px;color:var(--c-text);border-radius:var(--r-sm);}
.nav-list a:hover,.nav-list a.on{background:var(--c-blue-100);color:var(--c-blue);}
.nav-cta{display:flex;gap:10px;align-items:center;flex-shrink:0;}
.nav-toggle{display:none;width:42px;height:38px;border:1px solid var(--c-line);background:#fff;border-radius:var(--r-sm);cursor:pointer;padding:9px 10px;}
.nav-toggle i{display:block;height:2px;background:var(--c-navy);border-radius:2px;}
.nav-toggle i+i{margin-top:5px;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:11px 22px;border-radius:var(--r-sm);font-size:14.5px;font-weight:700;border:1px solid transparent;cursor:pointer;transition:.18s;white-space:nowrap;}
.btn-pri{background:var(--c-blue);color:#fff;}
.btn-pri:hover{background:#134D87;color:#fff;}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5);}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;}
.btn-line{background:#fff;color:var(--c-blue);border-color:var(--c-blue-200);}
.btn-line:hover{background:var(--c-blue-50);border-color:var(--c-blue);color:var(--c-blue);}
.btn-block{width:100%;}

/* ---------- 通用段落 ---------- */
.sec{padding:64px 0;}
.sec-alt{background:var(--c-white);}
.sec-head{text-align:center;max-width:760px;margin:0 auto 40px;}
.sec-tag{display:inline-block;font-size:12px;font-family:var(--font-mono);letter-spacing:2px;color:var(--c-blue);background:var(--c-blue-100);padding:4px 12px;border-radius:99px;margin-bottom:14px;}
.sec-head h2{font-size:30px;letter-spacing:-.3px;}
.sec-head p{margin-top:12px;color:var(--c-text-2);font-size:15.5px;}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(160deg,#0B2545 0%,#123A6B 55%,#185FA5 100%);color:#fff;padding:72px 0 76px;position:relative;overflow:hidden;}
.hero::after{content:"";position:absolute;right:-140px;top:-140px;width:520px;height:520px;border-radius:50%;background:rgba(55,138,221,.16);}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center;}
.hero h1{color:#fff;font-size:42px;line-height:1.28;letter-spacing:-.5px;}
.hero h1 em{font-style:normal;color:#8FC4F5;}
.hero .lead{margin:18px 0 0;color:#C9DAEC;font-size:16.5px;max-width:520px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 30px;}
.hero-points span{font-size:13px;padding:6px 13px;border:1px solid rgba(255,255,255,.28);border-radius:99px;color:#DCE9F7;background:rgba(255,255,255,.06);}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;}
.hero-visual{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:var(--r-xl);padding:22px;}
.hero-visual .hv-cap{display:flex;justify-content:space-between;font-size:12px;font-family:var(--font-mono);color:#9FBEDC;margin-bottom:14px;letter-spacing:.5px;}
.hero-visual .hv-cap b{color:#5DCAA5;font-weight:700;}

/* ---------- 信任条 ---------- */
.trust{background:var(--c-white);border-bottom:1px solid var(--c-line-2);}
.trust .wrap{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;padding-top:22px;padding-bottom:22px;}
.trust div{text-align:center;padding:0 8px;border-right:1px solid var(--c-line-2);}
.trust div:last-child{border-right:0;}
.trust b{display:block;font-size:22px;font-family:var(--font-mono);color:var(--c-blue);letter-spacing:-.5px;}
.trust span{font-size:12.5px;color:var(--c-text-2);}

/* ---------- 对比区 ---------- */
.cmp{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.cmp-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-1);}
.cmp-card.win{border-color:var(--c-blue-200);border-top:3px solid var(--c-blue);}
.cmp-card h3{font-size:18px;display:flex;align-items:center;justify-content:space-between;gap:10px;}
.cmp-card h3 em{font-style:normal;font-size:12px;font-family:var(--font-mono);padding:3px 9px;border-radius:99px;background:var(--c-line-2);color:var(--c-text-2);}
.cmp-card.win h3 em{background:var(--c-blue-100);color:var(--c-blue);}
.cmp-card ul{margin-top:16px;}
.cmp-card li{position:relative;padding:9px 0 9px 22px;font-size:14.5px;color:var(--c-text-2);border-bottom:1px dashed var(--c-line-2);}
.cmp-card li:last-child{border-bottom:0;}
.cmp-card li::before{content:"";position:absolute;left:2px;top:17px;width:7px;height:7px;border-radius:2px;background:var(--c-text-3);}
.cmp-card.win li::before{background:var(--c-teal);}
.cmp-card li b{color:var(--c-text);font-family:var(--font-mono);}

/* ---------- 产品卡 ---------- */
.prods{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.prod{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:.2s;display:flex;flex-direction:column;}
.prod:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-blue-200);}
.prod-fig{background:linear-gradient(166deg,#173A5F 0%,#0B2545 58%,#07182E 100%);padding:0;position:relative;overflow:hidden;}
/* 摄影棚光晕：把深色机身从深底上"托"起来 */
.prod-fig::before{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:radial-gradient(ellipse 58% 48% at 50% 45%,rgba(55,138,221,.34),rgba(55,138,221,.10) 55%,rgba(55,138,221,0) 74%);}
/* 底部压暗，形成展台感 */
.prod-fig::after{content:"";position:absolute;left:0;right:0;bottom:0;height:34%;z-index:1;pointer-events:none;
  background:linear-gradient(180deg,rgba(3,12,26,0),rgba(3,12,26,.5));}
.prod-fig .shot{position:relative;z-index:2;padding:14px 12px 6px;}
.prod-fig .shot img{position:relative;z-index:1;width:100%;height:auto;display:block;
  transition:transform .5s cubic-bezier(.2,.7,.3,1);}
.prod:hover .prod-fig .shot img{transform:translateY(-7px) scale(1.025);}
.prod-fig .badge{position:absolute;left:14px;top:14px;z-index:3;font-size:11.5px;font-family:var(--font-mono);padding:3px 9px;border-radius:99px;background:rgba(93,202,165,.18);color:#6FE0BB;border:1px solid rgba(93,202,165,.45);backdrop-filter:blur(3px);}
.prod-body{padding:20px 22px 22px;flex:1;display:flex;flex-direction:column;}
.prod-body h3{font-size:19px;font-family:var(--font-mono);letter-spacing:.3px;}
.prod-body .pname{font-size:14px;color:var(--c-text-2);margin:6px 0 14px;}
.prod-spec{font-size:13.5px;margin-bottom:16px;flex:1;}
.prod-spec li{display:flex;justify-content:space-between;gap:12px;padding:6px 0;border-bottom:1px dashed var(--c-line-2);}
.prod-spec li:last-child{border-bottom:0;}
.prod-spec .k{color:var(--c-text-2);flex-shrink:0;}
.prod-spec .v{font-family:var(--font-mono);color:var(--c-navy);text-align:right;font-weight:700;}

/* ---------- 软件区 ---------- */
.soft{display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;}
.soft-shot{background:linear-gradient(180deg,#123A6B 0%,#0B2545 100%);border:1px solid rgba(143,196,245,.18);border-radius:var(--r-lg);padding:12px 12px 14px;box-shadow:0 26px 60px rgba(6,20,40,.34);}
.soft-shot .bar{display:flex;align-items:center;gap:6px;margin:2px 4px 11px;}
.soft-shot .bar i{width:9px;height:9px;border-radius:50%;background:#2F4E73;display:block;}
.soft-shot .bar i:first-child{background:#3C5A7D;}
.soft-shot .bar .t{margin-left:8px;font-family:var(--font-mono);font-size:11.5px;color:#8FC4F5;letter-spacing:.3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.soft-shot img{width:100%;height:auto;display:block;border-radius:8px;box-shadow:0 12px 30px rgba(2,10,24,.45);}
.soft-badge{display:inline-flex;align-items:center;gap:7px;margin-top:16px;padding:7px 13px;border-radius:99px;background:var(--c-blue-100);color:var(--c-navy-600);font-size:12.5px;font-weight:700;}
.soft-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--c-blue);display:block;}
.soft-list{margin-top:22px;}
.soft-list li{position:relative;padding:11px 0 11px 30px;font-size:14.5px;color:var(--c-text-2);border-bottom:1px solid var(--c-line-2);}
.soft-list li:last-child{border-bottom:0;}
.soft-list li::before{content:"";position:absolute;left:0;top:19px;width:14px;height:7px;border-left:2px solid var(--c-teal);border-bottom:2px solid var(--c-teal);transform:rotate(-45deg);}
.soft-list li b{color:var(--c-navy);}

/* ---------- 软件区（单页居中版） ---------- */
.soft-center{max-width:1000px;margin:0 auto;}
.soft-center .soft-shot{margin:0 auto;}
.soft-center-body{margin-top:38px;}
.soft-center-body h3{font-size:19px;margin-bottom:6px;}
.soft-center-body .chip-row{margin-top:18px;}

/* ---------- 方案卡 ---------- */
.sols{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.sol{background:#fff;border:1px solid var(--c-line);border-left:3px solid var(--c-blue-200);border-radius:var(--r-md);padding:22px 24px;transition:.18s;}
.sol:hover{border-left-color:var(--c-blue);box-shadow:var(--sh-1);}
.sol h3{font-size:16.5px;margin-bottom:8px;}
.sol p{font-size:14px;color:var(--c-text-2);margin:0;}

/* ---------- 选型引导 ---------- */
.pick{background:var(--c-white);border:1px solid var(--c-line);border-radius:var(--r-xl);padding:34px;box-shadow:var(--sh-1);}
.pick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.pick-item{border-left:3px solid var(--c-blue-100);padding-left:18px;}
.pick-item .no{font-family:var(--font-mono);font-size:12px;color:var(--c-blue);letter-spacing:1px;}
.pick-item h3{font-size:16px;margin:6px 0 8px;}
.pick-item p{font-size:13.5px;color:var(--c-text-2);margin:0;}
.pick-item a{font-size:13.5px;font-weight:700;display:inline-block;margin-top:8px;}

/* ---------- 结尾渐变框 ---------- */
.outro{background:linear-gradient(120deg,#0B2545 0%,#185FA5 100%);border-radius:var(--r-xl);padding:40px;color:#fff;display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center;}
.outro h2{color:#fff;font-size:24px;}
.outro p{color:#C9DAEC;margin:10px 0 0;font-size:14.5px;max-width:640px;}

/* ---------- 表单 ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:6px;}
.field.full{grid-column:1/-1;}
.field label{font-size:13.5px;color:var(--c-text-2);}
.field label b{color:var(--c-red);}
.field input,.field select,.field textarea{
  font-family:var(--font-sans);font-size:14.5px;color:var(--c-text);
  padding:11px 13px;border:1px solid var(--c-line);border-radius:var(--r-sm);background:#fff;
}
.field textarea{resize:vertical;min-height:96px;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--c-blue);box-shadow:0 0 0 3px rgba(24,95,165,.12);}

/* ---------- 参数表 ---------- */
.pspec{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;}
.pspec table{font-size:14px;}
.pspec th,.pspec td{padding:13px 18px;text-align:left;border-bottom:1px solid var(--c-line-2);vertical-align:top;}
.pspec thead th{background:var(--c-blue-50);color:var(--c-navy);font-size:13.5px;letter-spacing:.3px;border-bottom:1px solid var(--c-blue-100);}
.pspec tbody tr:nth-child(even){background:#FBFCFE;}
.pspec tbody tr:hover{background:var(--c-blue-50);}
.pspec th[scope=row]{width:190px;color:var(--c-text-2);font-weight:400;background:#FBFCFE;}
.pspec td{font-family:var(--font-mono);color:var(--c-navy);font-weight:700;}
.pspec td.txt{font-family:var(--font-sans);font-weight:400;color:var(--c-text);}

/* ---------- 页脚 ---------- */
.foot{background:var(--c-navy);color:#9FB4CC;padding:52px 0 0;font-size:13.5px;}
.foot-grid{display:grid;grid-template-columns:1.5fr .9fr 1fr .95fr 1.2fr;gap:34px;padding-bottom:38px;}
.foot h4{color:#fff;font-size:15px;margin-bottom:14px;}
.foot a{color:#9FB4CC;display:block;padding:4px 0;}
.foot a:hover{color:#fff;}
.foot .fc-brand b{color:#fff;font-size:16px;display:block;margin-bottom:10px;}
.foot .fc-brand p{margin:0 0 8px;}
.foot .mono{font-family:var(--font-mono);color:#DCE9F7;}
.foot-bar{border-top:1px solid rgba(255,255,255,.1);padding:18px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px;color:#7C93AC;}

/* ---------- 面包屑 ---------- */
.crumb{font-size:13px;color:var(--c-text-3);padding:14px 0;}
.crumb a{color:var(--c-text-2);}
.crumb span{margin:0 7px;}

/* ---------- 产品页 ---------- */
.phero{background:linear-gradient(160deg,#0B2545 0%,#123A6B 100%);color:#fff;padding:44px 0 54px;}
.phero .wrap{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;}
.phero .model{font-family:var(--font-mono);font-size:13px;letter-spacing:2px;color:#8FC4F5;margin-bottom:10px;}
.phero h1{color:#fff;font-size:34px;}
.phero .lead{color:#C9DAEC;font-size:16px;margin:14px 0 22px;}
.phero-fig{position:relative;overflow:hidden;border-radius:var(--r-lg);padding:20px;
  background:radial-gradient(ellipse 64% 56% at 50% 46%,rgba(55,138,221,.30),rgba(143,196,245,.07) 62%,rgba(255,255,255,.04) 100%);
  border:1px solid rgba(143,196,245,.22);}
.phero-fig img{position:relative;z-index:1;width:100%;height:auto;display:block;
  transition:transform .5s cubic-bezier(.2,.7,.3,1);}
.phero-fig:hover img{transform:translateY(-7px) scale(1.02);}

.adv{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.adv-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);padding:20px;}
.adv-item .ic{width:34px;height:34px;border-radius:8px;background:var(--c-blue-100);display:flex;align-items:center;justify-content:center;margin-bottom:12px;}
.adv-item h3{font-size:15.5px;margin-bottom:6px;}
.adv-item p{font-size:13.5px;color:var(--c-text-2);margin:0;}

.faq{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;}
.faq details{border-bottom:1px solid var(--c-line-2);}
.faq details:last-child{border-bottom:0;}
.faq summary{cursor:pointer;padding:16px 20px;font-size:15px;font-weight:700;color:var(--c-navy);list-style:none;position:relative;padding-right:44px;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"+";position:absolute;right:20px;top:14px;font-family:var(--font-mono);font-size:19px;color:var(--c-blue);}
.faq details[open] summary::after{content:"−";}
.faq .ans{padding:0 20px 18px;font-size:14.5px;color:var(--c-text-2);}

/* ==========================================================================
   响应式：PC / 平板 / 手机 自适应
   断点 1080 / 860 / 620
   ========================================================================== */
@media (max-width:1080px){
  .hero h1{font-size:34px;}
  .hero .wrap{grid-template-columns:1fr;gap:34px;}
  .prods{grid-template-columns:repeat(2,1fr);}
  .sols{grid-template-columns:repeat(2,1fr);}
  .soft{grid-template-columns:1fr;gap:28px;}
  .phero .wrap{grid-template-columns:1fr;gap:30px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:26px;}
}

@media (max-width:860px){
  .nav-list{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--c-line);flex-direction:column;align-items:stretch;padding:8px 16px 14px;box-shadow:var(--sh-2);}
  .nav-list.open{display:flex;}
  .nav-list a{padding:12px 10px;border-bottom:1px solid var(--c-line-2);}
  .nav-toggle{display:block;}
  .nav{position:sticky;}
  .nav .wrap{position:relative;}
  .nav-cta .btn{padding:9px 15px;font-size:13.5px;}
  .sec{padding:46px 0;}
  .sec-head h2{font-size:24px;}
  .sec-head{margin-bottom:28px;}
  .cmp{grid-template-columns:1fr;}
  .adv{grid-template-columns:repeat(2,1fr);}
  .pick-grid{grid-template-columns:1fr;gap:18px;}
  .outro{grid-template-columns:1fr;padding:28px;}
  .trust .wrap{grid-template-columns:repeat(3,1fr);gap:18px 8px;}
  .trust div:nth-child(3){border-right:0;}
  .hero{padding:48px 0 52px;}
  .hero h1{font-size:28px;}
  .hero .lead{font-size:15px;}
}

@media (max-width:620px){
  body{font-size:14.5px;}
  .wrap{padding:0 15px;}
  .topbar .wrap{flex-direction:column;justify-content:center;gap:2px;padding-top:6px;padding-bottom:6px;font-size:12px;}
  .topbar .tb-right{gap:12px;}
  .prods,.sols,.adv{grid-template-columns:1fr;}
  .trust .wrap{grid-template-columns:repeat(2,1fr);}
  .trust div{border-right:0;padding:6px 4px;}
  .trust b{font-size:19px;}
  .form-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;gap:22px;}
  .foot-bar{flex-direction:column;gap:6px;}
  .hero h1{font-size:24px;}
  .hero-actions .btn{flex:1 1 100%;}
  .pspec th[scope=row]{width:120px;font-size:13px;}
  .pspec th,.pspec td{padding:11px 12px;font-size:13px;}
  .pspec{overflow-x:auto;-webkit-overflow-scrolling:touch;}
  .pspec table{min-width:520px;}
  .phero h1{font-size:24px;}
  .btn{padding:10px 16px;font-size:14px;}
}

/* ==========================================================================
   栏目页（产品中心 / 技术文章列表）
   ========================================================================== */
.pagehead{background:linear-gradient(160deg,#0B2545 0%,#123A6B 100%);color:#fff;padding:42px 0 46px;}
.pagehead .eyebrow{font-family:var(--font-mono);font-size:12.5px;letter-spacing:2px;color:#8FC4F5;margin-bottom:10px;}
.pagehead h1{color:#fff;font-size:32px;}
.pagehead p{color:#C9DAEC;margin:14px 0 0;max-width:780px;font-size:15.5px;}
.pagehead .ph-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.pagehead .ph-points span{font-size:13px;padding:6px 13px;border:1px solid rgba(255,255,255,.28);border-radius:99px;color:#DCE9F7;background:rgba(255,255,255,.06);}

.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.filters a{font-size:14px;padding:8px 16px;border:1px solid var(--c-line);border-radius:99px;background:#fff;color:var(--c-text-2);}
.filters a:hover{border-color:var(--c-blue-200);color:var(--c-blue);}
.filters a.on{background:var(--c-blue);border-color:var(--c-blue);color:#fff;}

.arts{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.art-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;display:flex;flex-direction:column;transition:.2s;box-shadow:var(--sh-1);}
.art-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--c-blue-200);}
.art-fig{background:linear-gradient(165deg,#12304F 0%,#0B2545 100%);padding:18px;min-height:132px;display:flex;align-items:center;justify-content:center;aspect-ratio:25/11;box-sizing:border-box;}
.art-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.art-meta{font-size:12.5px;color:var(--c-text-3);font-family:var(--font-mono);display:flex;gap:12px;flex-wrap:wrap;margin-bottom:10px;}
.art-card h3{font-size:17px;line-height:1.5;}
.art-card .ex{font-size:13.5px;color:var(--c-text-2);margin-top:10px;flex:1;}
.art-card .more{font-size:13.5px;font-weight:700;margin-top:14px;display:inline-block;}
.tagline{display:inline-block;font-size:12px;font-family:var(--font-mono);color:var(--c-blue);background:var(--c-blue-100);padding:3px 9px;border-radius:99px;margin-bottom:10px;}

.art-feat{display:grid;grid-template-columns:1.05fr .95fr;gap:0;background:#fff;border:1px solid var(--c-blue-200);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);margin-bottom:var(--gap);}
.art-feat-fig{background:linear-gradient(165deg,#12304F 0%,#0B2545 100%);padding:26px;display:flex;align-items:center;justify-content:center;aspect-ratio:7/4;box-sizing:border-box;}
/* 封面图自适应：litpic 是原图直出（thumb_open=0，EyouCMS 不做缩略裁剪），
   头条位 7:4、卡片位 25:11，同一张 1.75:1 的封面若按原比例铺开会导致
   卡片高低不齐 → 用 aspect-ratio 固定图区 + object-fit 裁切，永不变形。
   内置 svg 占位符走 preserveAspectRatio 居中留白，同样补 height:100%。 */
.art-fig img,.art-feat-fig img{height:100%;object-fit:cover;object-position:center;}
.art-fig svg,.art-feat-fig svg{height:100%;}
/* 无 litpic 时整个图区不渲染（见脚本 95-nolitpic.php），这里兜住版式：
   头条位由双列收成单列，卡片正文补足高度，避免出现「空的假图框」。 */
.art-feat:not(:has(.art-feat-fig)){grid-template-columns:1fr;}
.art-card:not(:has(.art-fig)) .art-body{padding-top:26px;}

/* 正文配图（92-cover.py / 93-inline.py 产出的图直接内嵌在 content 里） */
.body img{max-width:100%;height:auto;border-radius:var(--r-sm);margin:6px 0;}
.body figure{margin:28px 0 24px;}
.body figcaption{font-size:13.5px;color:var(--c-text-3);text-align:center;margin-top:11px;
  font-family:var(--font-mono);letter-spacing:.02em;}
.art-feat-body{padding:30px 32px;display:flex;flex-direction:column;justify-content:center;}
.art-feat-body h3{font-size:22px;line-height:1.45;margin:10px 0 12px;}
.art-feat-body p{font-size:14.5px;color:var(--c-text-2);margin:0 0 18px;}

.pager{display:flex;gap:8px;justify-content:center;margin-top:36px;flex-wrap:wrap;}
.pager a,.pager span{min-width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;padding:0 12px;border:1px solid var(--c-line);border-radius:var(--r-sm);font-size:14px;background:#fff;color:var(--c-text-2);font-family:var(--font-mono);}
.pager a:hover{border-color:var(--c-blue);color:var(--c-blue);}
.pager .cur{background:var(--c-blue);border-color:var(--c-blue);color:#fff;}

/* ==========================================================================
   文章详情页
   ========================================================================== */
.art-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;align-items:start;}
.art-main{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);padding:40px 44px;min-width:0;}
.art-head h1{font-size:29px;line-height:1.42;}
.art-head .meta{display:flex;flex-wrap:wrap;gap:16px;font-size:13px;color:var(--c-text-3);font-family:var(--font-mono);margin-top:16px;padding-bottom:20px;border-bottom:1px solid var(--c-line-2);}
.art-head .sum{margin-top:20px;padding:16px 18px;background:var(--c-blue-50);border-left:3px solid var(--c-blue-200);border-radius:var(--r-sm);font-size:14.5px;color:var(--c-text-2);margin-bottom:0;}

.body{font-size:15.5px;line-height:1.9;margin-top:26px;}
.body h2{font-size:22px;margin:38px 0 14px;padding-left:14px;border-left:4px solid var(--c-blue);scroll-margin-top:90px;}
.body h3{font-size:17px;margin:26px 0 10px;scroll-margin-top:90px;}
.body p{margin:0 0 16px;}
.body ul{margin:0 0 18px;}
.body ul li{position:relative;padding:6px 0 6px 22px;color:var(--c-text-2);}
.body ul li::before{content:"";position:absolute;left:2px;top:15px;width:7px;height:7px;border-radius:2px;background:var(--c-blue-200);}
.body table{font-size:14px;margin:22px 0;}
.body th,.body td{padding:11px 14px;border-bottom:1px solid var(--c-line-2);text-align:left;vertical-align:top;}
.body thead th{background:var(--c-blue-50);color:var(--c-navy);font-size:13.5px;border-bottom:1px solid var(--c-blue-100);}
.body td{color:var(--c-text-2);}
.body tbody tr:nth-child(even){background:#FBFCFE;}
.body strong{color:var(--c-navy);}
.body code{font-family:var(--font-mono);font-size:14px;background:var(--c-blue-50);padding:2px 6px;border-radius:4px;color:var(--c-blue);}
.body blockquote{margin:22px 0;padding:16px 20px;background:var(--c-blue-50);border-left:3px solid var(--c-blue);border-radius:var(--r-sm);color:var(--c-text-2);font-size:14.5px;}
.body .note{background:var(--c-teal-100);border-left:3px solid var(--c-teal);padding:16px 20px;border-radius:var(--r-sm);font-size:14.5px;color:#1B4B3E;margin:22px 0;}
.body figure{margin:24px 0;background:var(--c-blue-50);border:1px solid var(--c-line);border-radius:var(--r-md);padding:18px;}
.body figcaption{text-align:center;font-size:12.5px;color:var(--c-text-3);margin-top:12px;}

.art-side{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px;}
.side-box{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);padding:20px 22px;}
.side-box h4{font-size:14px;letter-spacing:.5px;color:var(--c-navy);margin-bottom:12px;padding-bottom:10px;border-bottom:1px solid var(--c-line-2);}
.toc li a{display:block;font-size:13.5px;color:var(--c-text-2);padding:5px 0 5px 14px;border-left:2px solid var(--c-line);}
.toc li a:hover{color:var(--c-blue);border-left-color:var(--c-blue);}
.side-list li{padding:9px 0;border-bottom:1px dashed var(--c-line-2);font-size:13.5px;line-height:1.6;}
.side-list li:last-child{border-bottom:0;}
.side-list a{color:var(--c-text-2);}
.side-list a:hover{color:var(--c-blue);}
.side-cta{background:linear-gradient(140deg,#0B2545,#185FA5);color:#fff;border:0;}
.side-cta h4{color:#fff;border-bottom-color:rgba(255,255,255,.18);}
.side-cta p{color:#C9DAEC;font-size:13.5px;margin:0 0 14px;}
.side-cta .btn{background:#fff;color:var(--c-blue);width:100%;}

.art-foot{margin-top:34px;padding-top:24px;border-top:1px solid var(--c-line-2);}
.art-foot .kw{margin-top:14px;}
.art-foot .kw a{display:inline-block;font-size:12.5px;padding:4px 11px;border:1px solid var(--c-line);border-radius:99px;color:var(--c-text-2);margin:0 6px 6px 0;}
.art-foot .kw a:hover{border-color:var(--c-blue-200);color:var(--c-blue);}

@media (max-width:1080px){
  .arts{grid-template-columns:repeat(2,1fr);}
  .art-layout{grid-template-columns:1fr;gap:28px;}
  .art-side{position:static;}
  .art-main{padding:32px 30px;}
  .art-feat{grid-template-columns:1fr;}
  .pagehead h1{font-size:27px;}
}
@media (max-width:620px){
  .arts{grid-template-columns:1fr;}
  .art-fig{aspect-ratio:16/9;padding:14px;}
  .art-feat-fig{aspect-ratio:16/9;padding:18px;}
  .art-main{padding:24px 18px;}
  .art-head h1{font-size:22px;}
  .body{font-size:15px;}
  .body h2{font-size:19px;}
  .pagehead{padding:30px 0 34px;}
  .pagehead h1{font-size:22px;}
}

/* ==========================================================================
   软件栏目 / 对比栏目 增强组件
   ========================================================================== */
.flow{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);padding:24px;overflow-x:auto;-webkit-overflow-scrolling:touch;}
.flow svg{width:100%;height:auto;min-width:640px;display:block;}

.kv{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.kv-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);padding:18px 20px;}
.kv-item .n{font-family:var(--font-mono);font-size:12px;color:var(--c-blue);letter-spacing:1.2px;}
.kv-item b{display:block;font-size:15px;color:var(--c-navy);margin:7px 0 4px;}
.kv-item span{font-size:13px;color:var(--c-text-2);}

.duo{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start;}
.duo .shotcard{background:#0B2545;border-radius:var(--r-lg);padding:12px;box-shadow:var(--sh-2);}
.shotcard-cap{font-size:13px;color:var(--c-text-3);margin-top:10px;text-align:center;}

.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.chip{font-size:12.5px;font-family:var(--font-mono);padding:5px 11px;border:1px solid var(--c-line);border-radius:99px;background:#fff;color:var(--c-text-2);}

.lic{background:#fff;border:1px solid var(--c-blue-200);border-left:3px solid var(--c-blue);border-radius:var(--r-md);padding:24px 26px;display:grid;grid-template-columns:auto 1fr;gap:22px;align-items:center;}
.lic .seal{width:76px;height:76px;flex-shrink:0;}
.lic h3{font-size:17px;margin-bottom:6px;}
.lic p{font-size:14px;color:var(--c-text-2);margin:0;}

.rules{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);padding:8px 24px;}
.rules li{padding:14px 0 14px 30px;position:relative;border-bottom:1px solid var(--c-line-2);font-size:14.5px;color:var(--c-text-2);}
.rules li:last-child{border-bottom:0;}
.rules li::before{content:"";position:absolute;left:0;top:22px;width:14px;height:7px;border-left:2px solid var(--c-teal);border-bottom:2px solid var(--c-teal);transform:rotate(-45deg);}
.rules li b{color:var(--c-navy);}

/* 对比表格里的分组表头 */
.cmptable th.grp{background:var(--c-navy);color:#fff;font-size:13px;letter-spacing:.5px;font-family:var(--font-sans);text-align:center;}
.cmptable td.yes{color:var(--c-teal);font-weight:700;}
.cmptable td.no{color:#B0846A;}

@media (max-width:1080px){
  .kv{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:860px){
  .duo{grid-template-columns:1fr;}
  .lic{grid-template-columns:1fr;gap:14px;}
}
@media (max-width:620px){
  .kv{grid-template-columns:1fr;}
}

@media print{
  .nav,.topbar,.hero-actions,.foot{display:none;}
  .art-side{display:none;}
  .art-layout{grid-template-columns:1fr;}
}

/* ---------- 友情链接 ---------- */
.foot-links{border-top:1px solid rgba(255,255,255,.1);padding:20px 0 24px;}
.foot-links>b{display:block;color:#fff;font-size:15px;margin-bottom:12px;}
.foot-links .fl-list{display:flex;flex-wrap:wrap;gap:4px 20px;}
.foot .fl-list a{display:inline-block;color:#9FB4CC;padding:4px 0;font-size:13.5px;}
.foot .fl-list a:hover{color:#fff;}
/* 后台把链接删空时整块自动隐藏，不留空标题 */
.foot-links:has(.fl-list:empty){display:none;}
@media (max-width:620px){.foot-links .fl-list{gap:2px 14px;}}