/* roulang page: index */
:root{
  --brand:#2E6FB5;
  --brand-dark:#245A94;
  --brand-soft:#E7F1FA;
  --brand-soft-2:#F2F7FC;
  --accent:#2F8F7B;
  --accent-soft:#E2F2EE;
  --warm:#E9B471;
  --bg:#F7FAFC;
  --surface:#FFFFFF;
  --text:#1F2937;
  --muted:#65758B;
  --line:#E2E9F2;
  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:18px;
  --radius-xl:22px;
  --shadow-sm:0 4px 14px rgba(45,91,139,.07);
  --shadow-md:0 12px 30px rgba(45,91,139,.08);
  --shadow-lg:0 20px 40px rgba(45,91,139,.12);
  --header-h:72px;
  --font-sans:"Inter",-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-sans);
  color:var(--text);
  background:var(--bg);
  font-size:16px;
  line-height:1.7;
  min-height:100vh;
}
ul,ol,li{list-style:none}
a{color:inherit;text-decoration:none;background:transparent;transition:color .2s ease,border-color .2s ease,background .2s ease,box-shadow .2s ease}
img{max-width:100%;height:auto;display:block}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
input,select,textarea{outline:none}
table{border-collapse:collapse;width:100%}
.container{max-width:1200px;margin-left:auto;margin-right:auto;padding-left:32px;padding-right:32px}
.main{overflow:hidden}
.section{padding:96px 0}
.section-head{margin-bottom:44px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:13px;letter-spacing:.08em;color:var(--brand);background:var(--brand-soft);border:1px solid #D4E5F3;padding:6px 13px;border-radius:999px;margin-bottom:18px}
.eyebrow::before{content:"";width:14px;height:2px;background:var(--brand);border-radius:2px}
.section-title{font-size:clamp(24px,4vw,36px);line-height:1.3;font-weight:700;letter-spacing:-.01em;color:#17233A}
.section-sub{color:var(--muted);font-size:16px;max-width:640px;line-height:1.8}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--radius-sm);font-size:15px;font-weight:600;white-space:nowrap;transition:transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease,color .2s ease;border:1px solid transparent}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 20px rgba(46,111,181,.16)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:0 14px 24px rgba(46,111,181,.22)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-outline{background:#fff;border-color:#DCE5EF;color:var(--text)}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-outline:active{transform:translateY(0)}
.btn-lg{height:54px;padding:0 34px;font-size:16px;border-radius:10px}
.btn-sm{height:40px;padding:0 18px;font-size:14px;font-weight:600}
.btn-block{width:100%}
.text-link{color:var(--brand);font-weight:600;font-size:14px;display:inline-flex;align-items:center;gap:6px}
.text-link:hover{color:var(--brand-dark)}
.text-link svg{width:15px;height:15px;transition:transform .2s ease}
.text-link:hover svg{transform:translateX(4px)}
.badge{display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;font-size:12px;font-weight:600;line-height:1.5;background:#EEF3F9;color:#40556C;white-space:nowrap}
.badge--brand{background:var(--brand-soft);color:var(--brand)}
.badge--accent{background:var(--accent-soft);color:var(--accent)}
.badge--warm{background:#FDF2E5;color:#A66A20}
.logo-word{font-weight:800;letter-spacing:.02em}
.logo-darkmono{color:#2d3d52;font-weight:800}
.card{background:#fff;border:1px solid #E7EDF4;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}
.card-hover{transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.card-hover:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:#C9D9EA}
.card-hover:active{transform:translateY(-2px)}

/* ===== Header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:99;
  background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.header-shadow{box-shadow:0 8px 26px rgba(34,63,98,.08)}
.header-inner{
  max-width:1200px;
  margin-left:auto;
  margin-right:auto;
  height:var(--header-h);
  padding-left:32px;
  padding-right:32px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.brand{display:flex;align-items:center;gap:11px;min-width:0;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:50%;background:var(--brand-soft);
  display:flex;align-items:center;justify-content:center;color:var(--brand);
  flex:none;border:1px solid #D8E9F6;position:relative;
}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand-name{color:#172B44;font-size:19px;font-weight:800;letter-spacing:.01em;white-space:nowrap}
.brand-sub{color:var(--brand);font-size:12px;font-weight:600;letter-spacing:.12em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 14px;
  color:#415268;font-size:15px;font-weight:500;border-radius:8px;
}
.nav-link:hover{color:var(--brand);background:#F1F6FB}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--brand);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.command-search{position:relative}
.cs-input{
  display:flex;align-items:center;gap:7px;width:214px;height:40px;
  background:#F3F7FB;border:1px solid #E2EAF2;border-radius:999px;padding:0 12px;color:#44556A;
  transition:border-color .2s ease,width .25s ease,box-shadow .2s ease;
}
.cs-input:hover{border-color:#CFDDEB}
.command-search.open .cs-input{border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(46,111,181,.12);width:260px}
.cs-input svg{width:16px;height:16px;opacity:.85;flex:none}
.cs-input input{border:0;background:transparent;flex:1;min-width:0;height:100%;font-size:14px;color:var(--text)}
.cs-input input::placeholder{color:#8A9BB0}
.cs-input kbd{
  font-family:inherit;font-size:11px;color:#75879D;border:1px solid #DCE5EF;background:#fff;border-radius:5px;padding:1px 6px;line-height:1.6;flex:none;
}
.command-menu{
  display:grid;gap:6px;position:absolute;right:0;top:48px;width:290px;background:#fff;border:1px solid #E0EBF4;
  border-radius:16px;padding:10px;box-shadow:0 24px 60px rgba(31,56,88,.16);opacity:0;visibility:hidden;transform:translateY(-8px);transition:all .22s ease;
}
.command-search.open .command-menu{opacity:1;visibility:visible;transform:translateY(0)}
.cm-label{font-size:12px;font-weight:600;color:#8b9caf;padding:4px 8px 2px}
.command-menu a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;padding:9px 10px;border-radius:10px;font-size:14px;color:#26384D;font-weight:600;
}
.command-menu a:hover{background:var(--brand-soft-2);color:var(--brand)}
.command-menu a small{font-size:12px;color:#8A9BB0;font-weight:400}
.command-menu a small:first-child{font-size:12px;color:var(--muted);font-weight:400}
.user-entry{
  display:inline-flex;align-items:center;gap:6px;height:40px;padding:0 12px;border:1px solid #E1E9F1;border-radius:999px;
  color:#40536B;font-size:14px;font-weight:500;background:#fff;
}
.user-entry:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft-2)}
.user-entry svg{width:16px;height:16px}
.user-entry .entry-label{white-space:nowrap}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid #DFE8F1;background:#fff;align-items:center;justify-content:center;color:#2C4057;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}
.nav-toggle svg{width:20px;height:20px}

/* ===== Hero ===== */
.hero{
  position:relative;padding:100px 0 64px;
  background:
    radial-gradient(circle at 82% 12%, rgba(46,111,181,.08) 0, transparent 32%),
    linear-gradient(180deg,#EEF6FC 0,#FFFFFF 68%,var(--bg) 100%);
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  align-items:center;
  gap:56px;
}
.hero-copy{position:relative;z-index:1}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:20px;font-size:13px;font-weight:600;color:var(--brand);
  background:rgba(255,255,255,.9);border:1px solid #D2E3F0;border-radius:999px;padding:6px 14px;
}
.hero-tag::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 3px rgba(47,143,123,.14)}
.hero-title{
  font-size:clamp(34px,4.8vw,50px);
  line-height:1.24;
  letter-spacing:-.03em;
  font-weight:800;
  color:#10233C;
  margin-bottom:18px;
}
.hero-title .grad{background:linear-gradient(135deg,var(--brand) 0%,#2E8A87 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-desc{
  font-size:17px;line-height:1.9;color:var(--muted);max-width:480px;margin-bottom:30px;
}
.hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero-trust{
  display:flex;align-items:center;flex-wrap:wrap;gap:18px;color:#7A8DA2;font-size:13px;
}
.trust-item{display:inline-flex;align-items:center;gap:6px}
.trust-item svg{width:14px;height:14px;color:var(--accent)}
.trust-line{
  display:flex;align-items:center;gap:8px;color:#7C8FA4;
}
.trust-line span{display:inline-flex;align-items:center;gap:6px}
.trust-line .dot{width:4px;height:4px;border-radius:50%;background:#C8D6E5}
.hero-media-wrap{position:relative}
.hero-media{
  position:relative;border-radius:22px;overflow:hidden;box-shadow:0 28px 64px rgba(33,67,113,.19);background:#eaf1f7;
  min-height:320px;
}
.hero-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3.4;transition:transform .6s ease}
.hero-media:hover img{transform:scale(1.04)}
.hero-media::after{content:"";position:absolute;inset:auto 0 0 0;height:45%;background:linear-gradient(180deg,transparent,rgba(10,26,48,.13));pointer-events:none}
.floating-chip{
  position:absolute;bottom:20px;left:-18px;background:#fff;border:1px solid #E1EBF3;box-shadow:var(--shadow-md);
  border-radius:14px;padding:10px 16px;display:flex;align-items:center;gap:10px;font-size:13px;font-weight:600;color:#293D53;animation:floatUp 1s ease both;
}
.floating-chip .chip-icon{width:30px;height:30px;border-radius:9px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center}
.floating-chip .chip-icon svg{width:16px;height:16px}
.floating-chip small{display:block;font-weight:400;color:#8091a5;font-size:12px;line-height:1.3}
@keyframes floatUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}
.hero-deco{
  position:absolute;left:-10px;top:-40px;width:120px;height:120px;background-image:linear-gradient(135deg,rgba(46,111,181,.12) 20%,transparent 20%),linear-gradient(135deg,rgba(46,111,181,.08) 20%,transparent 20%);background-size:24px 24px;background-position:0 0,12px 12px;border-radius:20px;z-index:-1;
}

/* ===== Pains ===== */
.pains{background:#fff;border-bottom:1px solid #EDF2F8;padding:100px 0}
.pains .section-title{max-width:560px}
.pain-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;margin-top:12px}
.pain-card{
  position:relative;background:#FBFCFE;border:1px solid #E6EDF5;border-radius:18px;padding:28px 24px 30px;transition:all .25s ease;
}
.pain-card::after{
  content:"";position:absolute;top:100%;left:50%;width:14px;height:14px;border-right:2px solid #B9CCDE;border-top:2px solid #B9CCDE;transform:translate(-50%,-12px) rotate(45deg);opacity:.9;transition:opacity .2s ease;
}
.pain-card:last-child::after{display:none}
.pain-card:hover{background:#fff;box-shadow:var(--shadow-lg);transform:translateY(-5px);border-color:#CFDFEE}
.pain-num{display:flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;font-size:14px;font-weight:800;color:var(--brand);background:var(--brand-soft);margin-bottom:18px}
.pain-card h3{font-size:17px;line-height:1.5;color:#1D2E44;margin-bottom:10px;font-weight:700}
.pain-card p{font-size:14px;line-height:1.85;color:var(--muted);margin-bottom:20px}
.pain-more{font-size:13px}

/* ===== Solutions ===== */
.solutions{background:var(--bg);padding:104px 0}
.solution-grid{
  display:grid;gap:24px;grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  grid-template-areas:"main aside" "strip strip";align-items:stretch;
}
.solution-main{grid-area:main}
.solution-side{grid-area:aside;display:grid;gap:24px;align-content:stretch}
.solution-strip{grid-area:strip}
.sol-card{background:#fff;border-radius:20px;box-shadow:var(--shadow-md);overflow:hidden;position:relative;border:1px solid #E8EFF6}
.sol-main-body{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);min-height:100%}
.sol-media{position:relative;min-height:284px;overflow:hidden;background-color:#EDF3F9}
.sol-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.sol-main-body:hover .sol-media img{transform:scale(1.05)}
.sol-media-tag{position:absolute;left:16px;top:16px;z-index:3}
.sol-content{padding:34px 32px;display:flex;flex-direction:column;justify-content:center;align-items:flex-start}
.sol-title-line{display:flex;align-items:center;width:100%}
.sol-title{font-size:25px;font-weight:800;color:#17293e;letter-spacing:-.02em;line-height:1.35}
.sol-index{margin-left:auto;font-size:14px;font-weight:800;color:#AFBED0;letter-spacing:.04em}
.sol-sub{color:var(--muted);font-size:14px;line-height:1.85;margin-top:8px}
.sol-list{width:100%;display:grid;gap:9px;margin:20px 0 22px}
.sol-list li{display:flex;gap:9px;font-size:14px;color:#3A4B63;line-height:1.7}
.sol-list li svg{width:18px;height:18px;flex:none;color:var(--brand);margin-top:3px}
.sol-footer{width:100%;display:flex;align-items:center;gap:14px;margin-top:auto;flex-wrap:wrap}
.small-card{display:block;padding:30px;border:1px solid #E8EFF6;border-radius:18px;background:#fff;box-shadow:var(--shadow-sm);transition:all .25s ease;position:relative;overflow:hidden}
.small-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--brand-soft);transition:background .25s ease}
.small-card:nth-child(2)::before{background:var(--accent-soft)}
.small-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.small-card:hover::before{background:var(--brand)}
.small-card .sm-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.small-card .sm-title{font-size:19px;font-weight:800;color:#1e3045}
.small-card .sm-num{font-size:12px;font-weight:800;color:#B4C3D3}
.small-card p{font-size:14px;line-height:1.85;color:var(--muted);margin-bottom:16px}
.small-card .sm-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.small-card .sm-foot .badge{font-size:12px}
.strip-card{
  display:flex;align-items:center;gap:24px;flex-wrap:wrap;background:#fff;border:1px solid #E8EFF6;
  border-radius:18px;padding:22px 26px;box-shadow:var(--shadow-sm);transition:all .25s ease;
}
.strip-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.strip-card .strip-icon{width:52px;height:52px;background:var(--accent-soft);border-radius:15px;display:flex;align-items:center;justify-content:center;color:var(--accent);flex:none}
.strip-card .strip-icon svg{width:24px;height:24px}
.strip-card .strip-content{flex:1;min-width:200px}
.strip-card .strip-content h3{font-size:17px;font-weight:700;color:#203146}
.strip-card .strip-content p{font-size:14px;color:var(--muted);line-height:1.8}
.strip-card .strip-link{flex:none}

/* ===== Metrics ===== */
.metrics{
  position:relative;padding:88px 0;
  background-color:#EAF3FA;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;background-blend-mode:overlay;
}
.metrics::before{content:"";position:absolute;inset:0;background:rgba(255,255,255,.92);}
.metrics .container{position:relative;z-index:2}
.metric-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:50px}
.metric-head .section-title{color:#102c45}
.metric-note{color:#527086;font-size:15px;max-width:440px;text-align:right}
.metric-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}
.metric-card{
  background:#fff;border-radius:22px;box-shadow:0 18px 42px rgba(30,65,106,.1);padding:34px 30px;
  display:flex;align-items:center;gap:22px;border:1px solid #E5EEF6;transition:transform .25s ease,box-shadow .25s ease;
}
.metric-card:hover{transform:translateY(-5px);box-shadow:0 24px 54px rgba(30,65,106,.16)}
.metric-number{
  font-size:52px;font-weight:800;line-height:1;letter-spacing:-.04em;color:var(--brand);
  font-feature-settings:"tnum";min-width:94px;text-align: center;
}
.metric-number small{font-size:22px;font-weight:700;color:#5d7forest;display:block;margin-top:6px;color:#5d7a9f;letter-spacing:.02em}
.metric-info{font-size:15px;font-weight:700;color:#263F58;line-height:1.6}
.metric-info span{display:inline-block;font-size:13px;font-weight:400;color:#5C748D;margin-top:4px;line-height:1.7}
.metric-bottom{
  margin-top:36px;display:flex;align-items:center;gap:12px;background:rgba(255,255,255,.64);border:1px solid #DAE8F4;
  border-radius:14px;padding:16px 18px;color:#415A75;font-size:14px;max-width:560px;
}
.metric-bottom svg{width:19px;height:19px;color:var(--accent);flex:none}

/* ===== News CMS ===== */
.news-section{background:#fff;padding:104px 0}
.news-top{display:flex;align-items:flex-end;justify-content:space-between;flex-wrap:wrap;gap:20px;margin-bottom:42px}
.news-top .section-title{max-width:520px}
.news-more{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-weight:600;font-size:14px;border:1px solid #D8E5F2;padding:10px 16px;border-radius:999px;background:var(--brand-soft-2);transition:all .25s ease}
.news-more:hover{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:0 12px 22px rgba(46,111,181,.2)}
.news-more svg{width:15px;height:15px}
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px 26px}
.news-card{
  display:grid;grid-template-columns:280px 1fr;background:#fff;border:1px solid #E7EEF5;border-radius:18px;
  overflow:hidden;box-shadow:var(--shadow-sm);transition:all .25s ease;
}
.news-card:hover{border-color:#C7DAEB;box-shadow:var(--shadow-lg);transform:translateY(-5px)}
.news-thumb{position:relative;overflow:hidden;min-height:170px}
.news-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.news-card:hover .news-thumb img{transform:scale(1.06)}
.news-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 65%,rgba(15,40,68,.32));pointer-events:none}
.news-body{padding:24px 24px 22px;display:flex;flex-direction:column;gap:12px}
.news-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px}
.news-meta time{font-size:12px;color:#8D9DB0}
.news-card h3{font-size:17px;line-height:1.6;font-weight:700;color:#1D3046;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.news-card .news-excerpt{font-size:14px;color:var(--muted);line-height:1.8;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.news-card .news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px}
.news-card--lead{grid-column:1/-1;grid-template-columns:minmax(400px,1fr) 1.2fr}
.news-card--lead .news-thumb{min-height:248px}
.news-card--lead h3{font-size:22px;-webkit-line-clamp:2}
.news-card--lead .news-excerpt{-webkit-line-clamp:3}
.news-empty{grid-column:1/-1;background:var(--bg);border:1px dashed #D6E3EF;border-radius:18px;padding:54px 24px;text-align:center}
.news-empty svg{width:44px;height:44px;color:#B6C8DC;margin-bottom:12px}
.news-empty h3{color:#33475d;font-size:18px;font-weight:700;margin-bottom:8px}
.news-empty p{color:var(--muted);font-size:14px;margin-bottom:22px}
.news-empty .btn{height:42px;font-size:14px;padding:0 20px}

/* ===== Lead Form ===== */
.lead-form{
  position:relative;padding:104px 0;
  background:linear-gradient(180deg,#F5F9FD 0%,var(--bg) 100%);
}
.form-plate{
  position:relative;background:#E9F2F9;border-radius:30px;overflow:hidden;
  box-shadow:0 22px 56px rgba(27,55,91,.1);
}
.form-plate::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.png');background-size:cover;background-position:center;mix-blend-mode:multiply;opacity:.18}
.form-grid{
  display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:20px;padding:34px;
  position:relative;
}
.form-intro{padding:38px 20px 36px 40px;display:flex;flex-direction:column;justify-content:center;align-items:flex-start}
.form-intro .eyebrow{margin-bottom:20px}
.form-intro h2{
  font-size:clamp(24px,3vw,33px);line-height:1.4;letter-spacing:-.02em;color:#102B46;font-weight:800;margin-bottom:18px;
}
.form-intro p{font-size:15px;color:#536D87;line-height:1.9;max-width:420px}
.form-points{margin-top:28px;display:grid;gap:14px;width:100%}
.form-point{display:flex;align-items:center;gap:12px;font-size:14px;color:#364F6B;font-weight:600}
.form-point span{width:28px;height:28px;background:#fff;border:1px solid #CFE1EE;border-radius:9px;display:flex;align-items:center;justify-content:center;color:var(--brand)}
.form-point span svg{width:15px;height:15px}
.form-safety{
  margin-top:30px;display:flex;align-items:center;gap:8px;color:#68869f;font-size:12px;background:rgba(255,255,255,.7);border:1px solid #F0EAF0;padding:9px 13px;border-radius:999px;
}
.form-safety svg{width:15px;height:15px;flex:none;color:var(--accent)}
.form-card-wrap{padding:14px}
.form-card{
  background:#fff;border-radius:22px;box-shadow:0 28px 64px rgba(32,66,105,.18);padding:30px 28px;border:8px solid rgba(46,111,181,.08);background-clip:padding-box;
}
.form-card caption, .form-h-title{
  display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:22px;
}
.form-h-title h3{font-size:21px;font-weight:800;color:#1A2F46;line-height:1.4}
.form-h-title span{font-size:13px;color:#8fa2b5;background:#F2F6FA;padding:5px 10px;border-radius:999px}
.form-grid-inner{display:grid;grid-template-columns:1fr 1fr;gap:16px 14px}
.form-field{display:flex;flex-direction:column;gap:6px}
.form-field--full{grid-column:1/-1}
.form-field label{font-size:13px;font-weight:600;color:#34485d}
.form-field label em{color:#D3666D;font-style:normal;padding-left:2px}
.form-field :where(input,select,textarea){
  height:44px;border:1px solid #DDE6F0;border-radius:9px;background:#FAFCFF;padding:0 13px;font-size:14px;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;width:100%;
}
.form-field textarea{height:94px;padding:12px 13px;resize:vertical;line-height:1.6}
.form-field :where(input,select,textarea):hover{border-color:#C7D7E7}
.form-field :where(input,select,textarea):focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(46,111,181,.13);background:#fff;outline:0}
.form-field select{
  appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%2365758B' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;cursor:pointer;padding-right:36px;
}
.form-submit-row{display:flex;align-items:center;gap:12px;margin-top:22px;flex-wrap:wrap}
.form-hint{font-size:12px;color:#91a2b5}
.form-feedback{margin-top:12px;padding:11px 12px;border-radius:9px;font-size:14px;line-height:1.6;display:none}
.form-feedback.success{display:block;background:var(--accent-soft);color:#176754;border:1px solid #BFE3DA}
.form-feedback.error{display:block;background:#FDF0F2;color:#AE4750;border:1px solid #F1CED4}

/* ===== FAQ ===== */
.faq-section{background:var(--bg);padding:100px 0}
.faq-container{max-width:820px;margin-left:auto;margin-right:auto}
.faq-section .section-head{text-align:center;margin-bottom:46px}
.faq-section .section-title{text-align:center}
.faq-intro{color:var(--muted);font-size:15px;max-width:600px;margin:10px auto 0}
.faq-list{display:grid;gap:14px}
.faq-item{background:#fff;border:1px solid #E6EDF5;border-radius:16px;padding:0 6px;box-shadow:0 4px 14px rgba(38,70,110,.04);transition:all .25s ease}
.faq-item:hover{border-color:#CBDDEC;box-shadow:var(--shadow-md)}
.faq-item details{position:relative}
.faq-item summary{
  list-style:none;display:flex;align-items:center;gap:16px;padding:22px 18px;cursor:pointer;font-weight:600;color:#1E3044;font-size:16px;line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .faq-icon{
  width:26px;height:26px;border-radius:8px;background:var(--brand-soft);color:var(--brand);font-weight:700;display:flex;align-items:center;justify-content:center;flex:none;
  transition:all .25s ease;margin-left:auto;
}
.faq-item summary .faq-icon svg{width:15px;height:15px;transition:transform .25s ease}
.faq-item details[open] summary .faq-icon{background:var(--brand);color:#fff}
.faq-item details[open] summary .faq-icon svg{transform:rotate(45deg)}
.faq-answer{padding:0 18px 22px 44px;color:var(--muted);font-size:14px;line-height:1.9}

/* ===== CTA band ===== */
.cta-band{background:#F4F0E8;padding:68px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-copy h2{color:#1C2735;font-size:clamp(24px,3vw,32px);font-weight:800;letter-spacing:-.02em;margin-bottom:10px}
.cta-copy p{color:#65748a;font-size:15px}
.cta-action{flex:none}

/* ===== Footer ===== */
.site-footer{background:#F2F6FA;border-top:1px solid #E3EAF2;padding-top:72px;font-size:14px}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:42px;padding-bottom:56px;
}
.footer-brand{max-width:300px}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-logo .brand-mark{background:#dfeaf4;border-color:#c7dbed;color:var(--brand)}
.footer-logo .brand-name{font-size:19px}
.footer-logo .brand-sub{font-size:11px}
.footer-brand p{color:#668099;font-size:14px;line-height:1.9}
.footer-col h3{font-size:15px;font-weight:700;color:#25405c;margin-bottom:16px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{color:#667e97;font-size:14px;line-height:1.5}
.footer-col a:hover{color:var(--brand)}
.footer-contact-row{display:flex;gap:10px;align-items:flex-start;color:#667e97;margin-bottom:12px;font-size:14px;line-height:1.7}
.footer-contact-row svg{flex:none;width:17px;height:17px;color:var(--brand);margin-top:4px}
.footer-bottom{
  border-top:1px solid #DAE5EF;padding:25px 0 28px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;color:#7E92A8;font-size:13px;
}
.footer-bottom a{color:#668099}
.footer-bottom a:hover{color:var(--brand)}
.footer-bottom .sep{margin:0 6px}

/* Scroll to top */
#backTop{
  position:fixed;right:22px;bottom:26px;width:44px;height:44px;border-radius:50%;background:#fff;border:1px solid #D9E6F1;color:var(--brand);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-md);opacity:0;visibility:hidden;transition:all .3s ease;z-index:60;
}
#backTop.show{opacity:1;visibility:visible}
#backTop:hover{background:var(--brand);color:#fff}
#backTop svg{width:18px;height:18px}

/* ===== Focus / active ===== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible{
  outline:3px solid rgba(46,111,181,.38);
  outline-offset:2px;
  border-radius:6px;
}
button:active,input[type="submit"]:active{transform:scale(.985)}

/* ===== Responsive ===== */
@media (max-width:1100px){
  .header-actions .user-entry{display:none}
  .main-nav{gap:2px}
  .nav-link{padding:0 10px}
  .cs-input{width:170px}
  .command-search.open .cs-input{width:180px}
  .hero-grid{gap:34px}
  .news-card{grid-template-columns:230px 1fr}
  .news-card--lead{grid-template-columns:1fr 1.2fr}
}
@media (max-width:1024px){
  .section{padding:80px 0}
  .pain-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
  .pain-card::after{display:none}
  .solution-main-body{grid-template-columns:1fr}
  .sol-media{min-height:240px}
  .metric-grid{gap:18px}
  .metric-card{flex-direction:column;text-align:center;padding:30px 18px}
  .metric-info br{display:none}
  .news-grid{grid-template-columns:1fr}
  .news-card--lead{grid-template-columns:1fr 1.2fr}
  .form-grid{grid-template-columns:1fr;padding:30px}
  .form-intro{padding:12px 10px 0 10px}
  .form-card-wrap{padding:6px 0 0 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:38px}
  .footer-brand{grid-column:1/-1;max-width:520px}
}
@media (max-width:900px){
  .header-inner{padding-left:18px;padding-right:18px}
  .brand-sub{letter-spacing:.05em}
  .nav-toggle{display:inline-flex}
  .main-nav{
    position:fixed;top:68px;right:16px;width:350px;max-width:calc(100vw - 20px);
    background:#fff;border:1px solid #E0E9F2;border-radius:18px;box-shadow:0 24px 56px rgba(24,48,82,.2);
    flex-direction:column;align-items:stretch;padding:10px;gap:4px;
    opacity:0;visibility:hidden;transform:translateY(-10px) scale(.98);transform-origin:top right;
    transition:all .25s ease;z-index:80;
  }
  body.nav-open .main-nav{opacity:1;visibility:visible;transform:none}
  .nav-link{height:48px;justify-content:flex-start;padding:0 14px;border-radius:12px}
  .nav-link.active::after{left:14px;right:auto;width:18px;bottom:8px;height:3px}
  .header-actions .btn{display:none}
  .command-search .cs-input{width:150px}
  body.nav-open .nav-toggle{background:var(--brand);color:#fff;border-color:var(--brand)}
  .metric-grid{grid-template-columns:1fr 1fr}
  .metric-card:last-child{grid-column:1/-1}
  .metric-card{flex-direction:row;text-align:left}
  .news-card--lead,.news-card{grid-template-columns:1fr}
  .news-card--lead .news-thumb,.news-thumb{min-height:190px;position:relative;height:auto}
  .news-thumb img{position:static;width:100%;height:auto;min-height:160px}
  .cta-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:768px){
  .section{padding:70px 0}
  .container{padding-left:20px;padding-right:20px}
  .header-inner{padding-left:16px;padding-right:16px}
  .brand-mark{width:36px;height:36px}
  .brand-name{font-size:17px}
  .brand-sub{font-size:11px}
  .header-actions .command-search{display:none}
  .hero{padding:72px 0 48px}
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .hero-media{min-height:240px}
  .hero-media img{aspect-ratio:16/10}
  .floating-chip{left:12px;bottom:12px}
  .hero-actions .btn{width:100%}
  .hero-trust{flex-direction:column;align-items:flex-start;gap:10px}
  .pain-grid{grid-template-columns:1fr}
  .solution-grid{grid-template-columns:1fr;grid-template-areas:"main" "aside" "strip"}
  .solution-main-body{grid-template-columns:1fr}
  .sol-media{min-height:200px}
  .sol-content{padding:26px 22px}
  .small-card{padding:26px 22px}
  .strip-card{padding:24px 22px;align-items:flex-start;flex-direction:column}
  .metric-grid{grid-template-columns:1fr}
  .metric-card{flex-direction:row;text-align:left}
  .news-top{align-items:flex-start}
  .news-section,.solutions,.pains,.metrics,.lead-form,.faq-section{padding:66px 0}
  .form-plate{border-radius:22px}
  .form-grid{padding:20px}
  .form-grid-inner{grid-template-columns:1fr}
  .form-card-wrap{padding-top:6px}
  .form-card{padding:22px 18px}
  .form-submit-row .btn{width:100%}
  .form-hint{width:100%;text-align:center}
  .faq-container{padding:0 2px}
  .faq-section .section-head{margin-bottom:34px}
  .faq-answer{padding:0 18px 20px 20px}
  .site-footer{padding-top:58px}
  .footer-grid{grid-template-columns:1fr;gap:34px}
  .footer-brand{grid-column:auto}
  .footer-bottom{justify-content:center;text-align:center}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px}
  .header-inner .btn{padding:0 14px}
  .hero-title{font-size:34px;line-height:1.28}
  .metric-card{flex-direction:column;text-align:center;padding:28px 18px}
  .metric-bottom{flex-direction:column;text-align:center}
  .cta-band{padding:54px 0}
  .cta-action .btn{width:100%}
}

/* roulang page: category1 */
:root {
  --primary: #2E6FB5;
  --primary-dark: #256198;
  --primary-soft: #E7F1FA;
  --sky-bg: #F7FAFC;
  --surface: #FFFFFF;
  --text: #1F2937;
  --muted: #65758B;
  --border: #E2E9F2;
  --dark-green: #2C8070;
  --warm: #E7B878;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --shadow-sm: 0 6px 20px rgba(45, 91, 139, .06);
  --shadow-md: 0 12px 30px rgba(45, 91, 139, .08);
  --shadow-lg: 0 20px 40px rgba(45, 91, 139, .12);
  --max-w: 1200px;
  --header-h: 72px;
  --space-xl: 104px;
  --space-lg: 88px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
  background: var(--sky-bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

.container {
  width: min(var(--max-w), 92%);
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, .88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow .25s ease;
}

.site-header.is-scrolled {
  box-shadow: 0 10px 30px rgba(45, 91, 139, .08);
}

.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 28px;
  width: min(var(--max-w), 92%);
  margin-inline: auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex-shrink: 0;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(145deg, #FFFFFF, #EAF3FB);
  border: 1px solid var(--border);
  color: var(--primary);
  display: grid;
  place-items: center;
  box-shadow: 0 5px 14px rgba(46, 111, 181, .10);
}

.brand-mark svg {
  width: 22px;
  height: 22px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-name {
  font-weight: 700;
  font-size: 18px;
  letter-spacing: .02em;
}

.brand-sub {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: .05em;
}

.main-nav {
  display: flex;
  gap: 4px;
  align-items: center;
  margin-inline: auto;
}

.nav-link {
  font-size: 15px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 999px;
  color: #334155;
  transition: color .2s ease, background .2s ease;
  position: relative;
}

.nav-link:hover {
  background: var(--primary-soft);
  color: var(--primary-dark);
}

.nav-link:focus-visible {
  outline: 3px solid rgba(46, 111, 181, .25);
  outline-offset: 2px;
}

.nav-link.active {
  color: var(--primary-dark);
  background: var(--primary-soft);
  font-weight: 600;
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 3px;
  background: var(--primary);
  border-radius: 4px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.command-search {
  position: relative;
  width: 240px;
}

.cs-input {
  width: 100%;
  height: 40px;
  background: #F5F8FC;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0 8px 0 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  transition: border-color .2s, box-shadow .2s, background .2s;
  cursor: text;
}

.cs-input:hover {
  background: #FFFFFF;
  border-color: #C9D7E8;
}

.cs-input:focus-within {
  background: #FFFFFF;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(46, 111, 181, .12);
}

.cs-input svg {
  width: 15px;
  height: 15px;
  stroke-width: 2;
  flex-shrink: 0;
}

.cs-input kbd {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  font-family: inherit;
  font-size: 11px;
  color: #7C8CA3;
  border-radius: 5px;
  padding: 2px 6px;
  margin-left: auto;
}

.cs-input input {
  border: 0;
  background: transparent;
  outline: none;
  color: var(--text);
  width: 100%;
  font-size: 14px;
}

.cs-input input::placeholder {
  color: #9AA8BB;
}

.command-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
  padding: 10px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: .2s ease;
  z-index: 20;
}

.command-menu.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.cm-label {
  font-size: 12px;
  margin: 3px 6px 8px;
  color: var(--muted);
}

.command-menu a {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 9px;
  font-size: 14px;
  color: var(--text);
  transition: background .15s ease;
}

.command-menu a:hover {
  background: var(--primary-soft);
}

.command-menu a span {
  font-weight: 600;
}

.command-menu a small {
  color: #8A98AF;
  font-size: 12px;
}

.user-entry {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 40px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 14px;
  color: #47566A;
  border: 1px solid transparent;
  transition: background .2s, border-color .2s;
}

.user-entry:hover {
  background: #F0F4FA;
  border-color: var(--border);
  color: var(--primary-dark);
}

.user-entry:focus-visible {
  outline: 3px solid rgba(46, 111, 181, .2);
  outline-offset: 1px;
}

.user-entry svg {
  width: 17px;
  height: 17px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 15px;
  height: 46px;
  padding: 0 22px;
  background: var(--primary);
  color: #FFFFFF;
  cursor: pointer;
  transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
  box-shadow: 0 6px 16px rgba(46, 111, 181, .18);
}

.btn:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(46, 111, 181, .22);
}

.btn:active {
  transform: translateY(0);
  box-shadow: 0 4px 10px rgba(46, 111, 181, .2);
}

.btn:focus-visible {
  outline: 3px solid rgba(46, 111, 181, .3);
  outline-offset: 3px;
}

.btn-sm {
  height: 40px;
  padding: 0 18px;
  font-size: 14px;
}

.btn-outline {
  background: #FFFFFF;
  color: var(--primary);
  border: 1px solid #C9D8E8;
  box-shadow: none;
}

.btn-outline:hover {
  background: var(--primary-soft);
  box-shadow: none;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  background: #FFFFFF;
  border-radius: 10px;
  place-items: center;
  cursor: pointer;
  color: var(--text);
  padding: 0;
}

.nav-toggle:focus-visible {
  outline: 3px solid rgba(46, 111, 181, .2);
}

.nav-toggle svg {
  width: 20px;
  height: 20px;
}

.page-guide {
  position: relative;
  padding: 54px 0 30px;
  overflow: hidden;
}

.page-guide::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, #EDF5FC 0%, #FFFFFF 100%);
  z-index: -1;
}

.page-guide::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 38%;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: .22;
  z-index: -1;
  mask-image: linear-gradient(90deg, rgba(0,0,0,.8), transparent 70%);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--muted);
  background: rgba(255, 255, 255, .7);
  border: 1px solid var(--border);
  padding: 8px 14px;
  border-radius: 999px;
  width: max-content;
  max-width: 100%;
  margin-bottom: 24px;
}

.breadcrumb a {
  color: var(--primary);
  font-weight: 500;
}

.breadcrumb a:hover {
  color: var(--primary-dark);
}

.guide-title-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--primary-dark);
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.page-guide h1 {
  font-size: 46px;
  line-height: 1.2;
  margin: 0;
  font-weight: 700;
  letter-spacing: -.02em;
  color: #132A40;
}

.page-guide .lead {
  font-size: 18px;
  line-height: 1.8;
  color: #48576B;
  margin: 14px 0 0;
  max-width: 760px;
}

.guide-wrap {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 56px;
  padding: 20px 0 60px;
}

.toc-column {
  position: sticky;
  top: calc(var(--header-h) + 34px);
  align-self: start;
}

.toc-card {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow-sm);
  padding: 18px 16px 10px;
}

.toc-card-title {
  font-size: 14px;
  color: var(--muted);
  letter-spacing: .04em;
  margin: 0 6px 10px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.toc-card-title svg {
  width: 17px;
  height: 17px;
  color: var(--primary);
}

.toc-links {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.toc-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  font-size: 15px;
  color: #47566A;
  font-weight: 500;
  transition: background .2s, color .2s;
}

.toc-link:hover {
  background: var(--primary-soft);
  color: var(--primary-dark);
}

.toc-link.active {
  background: var(--primary-soft);
  color: var(--primary-dark);
  font-weight: 600;
}

.toc-link:focus-visible {
  outline: 3px solid rgba(46, 111, 181, .2);
  outline-offset: 1px;
}

.toc-num {
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
  background: #EDF4FB;
  padding: 2px 8px;
  border-radius: 6px;
  letter-spacing: .02em;
}

.doc-column {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 52px;
}

.doc-section {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: var(--shadow-sm);
  padding: 36px;
  scroll-margin-top: 110px;
  transition: box-shadow .25s ease;
}

.doc-section:hover {
  box-shadow: var(--shadow-md);
}

.doc-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.doc-id {
  background: var(--primary);
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 700;
  padding: 5px 10px;
  border-radius: 8px;
  letter-spacing: .02em;
  box-shadow: 0 5px 12px rgba(46,111,181,.20);
}

.doc-section h2 {
  font-size: 24px;
  line-height: 1.3;
  margin: 0;
  font-weight: 700;
}

.doc-desc {
  font-size: 15px;
  color: #52627A;
  margin: 0 0 22px;
}

.doc-figure {
  margin: 0 0 22px;
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 16 / 8;
  background: var(--primary-soft);
}

.doc-figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .45s ease;
}

.doc-figure:hover img {
  transform: scale(1.015);
}

.doc-body {
  font-size: 15px;
  color: #3D4C60;
  line-height: 1.9;
}

.doc-body p {
  margin: 0 0 14px;
}

.doc-list {
  list-style: none;
  padding: 0;
  margin: 8px 0 6px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.doc-list li {
  padding-left: 30px;
  position: relative;
  color: #42536B;
  font-size: 15px;
}

.doc-list li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 12px;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--primary);
  transform: rotate(45deg);
}

.doc-note {
  display: flex;
  gap: 10px;
  background: #F1F7FC;
  border: 1px solid #DCECFF;
  padding: 14px 16px;
  border-radius: 12px;
  color: #35597E;
  margin-top: 10px;
  font-size: 14px;
}

.doc-note svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
}

.section-sibling {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: stretch;
  margin: 12px 0 0;
}

.sibling-link {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 20px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: #FBFDFF;
  transition: .2s;
}

.sibling-link:hover {
  border-color: #B7CBDF;
  background: #EDF5FC;
}

.sibling-link small {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: .04em;
}

.sibling-link strong {
  font-size: 17px;
  color: var(--text);
}

.form-cta {
  padding: 84px 0;
  background: #EEF4FA;
  scroll-margin-top: calc(var(--header-h) + 30px);
}

.form-cta-inner {
  display: grid;
  grid-template-columns: 1.02fr 1fr;
  gap: 56px;
  align-items: center;
}

.cta-copy h2 {
  font-size: 34px;
  line-height: 1.3;
  margin: 0 0 12px;
  max-width: 460px;
  font-weight: 700;
  letter-spacing: -.02em;
}

.cta-copy p {
  color: #4B5E76;
  max-width: 450px;
  line-height: 1.8;
  margin: 0 0 18px;
}

.cta-feature-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.cta-feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: #3D526A;
  font-size: 15px;
}

.cta-feature-list svg {
  width: 20px;
  height: 20px;
  stroke: var(--primary);
  flex-shrink: 0;
  margin-top: 1px;
}

.form-card {
  background: #FFFFFF;
  border-radius: 22px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border);
  padding: 34px;
  position: relative;
}

.form-card::before {
  content: "";
  position: absolute;
  inset: -7px;
  border: 2px solid #8AB4E0;
  border-radius: 26px;
  pointer-events: none;
  opacity: .5;
}

.form-card-head {
  padding-bottom: 10px;
}

.form-card-head h3 {
  font-size: 21px;
  margin: 0 0 4px;
  font-weight: 700;
}

.form-card-head p {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
}

.lead-form {
  margin-top: 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.field label {
  font-size: 13px;
  font-weight: 600;
  color: #4A5B6F;
  display: block;
  margin-bottom: 6px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  height: 44px;
  border: 1px solid #CFDCEB;
  border-radius: 9px;
  background: #FBFCFE;
  padding: 0 13px;
  color: var(--text);
  font-size: 15px;
  transition: border-color .2s, box-shadow .2s, background .2s;
  outline: none;
  appearance: none;
}

.field textarea {
  height: 100px;
  padding: 10px 13px;
  resize: vertical;
}

.field input:hover,
.field select:hover,
.field textarea:hover {
  border-color: #A8BFD4;
  background: #FFFFFF;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(46, 111, 181, .12);
  background: #FFFFFF;
}

.field-select-wrap {
  position: relative;
}

.field-select-wrap::after {
  content: "";
  width: 8px;
  height: 8px;
  border-right: 2px solid #7B8BA1;
  border-bottom: 2px solid #7B8BA1;
  position: absolute;
  right: 15px;
  top: 46%;
  pointer-events: none;
  transform: translateY(-70%) rotate(45deg);
}

.form-submit-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.privacy-line {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 13px;
  color: #8391A5;
  line-height: 1.5;
  margin-top: 4px;
}

.privacy-line svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
  color: var(--primary);
}

.form-success {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15, 30, 46, .35);
  z-index: 300;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.form-success.show {
  display: flex;
}

.success-card {
  background: #FFFFFF;
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  padding: 38px 40px;
  max-width: 430px;
  text-align: center;
}

.success-card svg {
  width: 44px;
  height: 44px;
  color: var(--dark-green);
  margin: 0 auto 16px;
}

.success-card h3 {
  margin: 0 0 8px;
  font-size: 21px;
}

.success-card p {
  color: var(--muted);
  margin: 0 0 20px;
  font-size: 15px;
}

.faq-section {
  padding: 86px 0;
}

.faq-head {
  text-align: center;
  margin-bottom: 42px;
}

.faq-head .eyebrow {
  justify-content: center;
}

.faq-head h2 {
  font-size: 34px;
  margin: 0;
  letter-spacing: -.02em;
}

.faq-list {
  max-width: 860px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  transition: box-shadow .2s;
}

.faq-item[open] {
  box-shadow: var(--shadow-md);
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  min-height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 0 22px;
  font-size: 16px;
  font-weight: 600;
  position: relative;
  transition: color .2s;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary:hover {
  color: var(--primary-dark);
}

.faq-item summary:focus-visible {
  outline: 3px solid rgba(46, 111, 181, .2);
  outline-offset: -2px;
}

.faq-icon {
  width: 22px;
  height: 22px;
  color: var(--primary);
  position: relative;
  flex-shrink: 0;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: var(--primary);
  border-radius: 3px;
  transition: transform .25s ease;
}

.faq-icon::before {
  width: 16px;
  height: 2px;
  top: 10px;
  left: 3px;
}

.faq-icon::after {
  width: 2px;
  height: 16px;
  top: 3px;
  left: 10px;
}

.faq-item[open] .faq-icon::after {
  transform: scaleY(0);
}

.faq-answer {
  padding: 0 22px 20px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
  border-top: 1px dashed #E2E9F2;
  margin-top: 0;
}

.faq-answer p {
  margin: 14px 0 0;
}

.faq-answer a {
  color: var(--primary);
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.faq-answer a:hover {
  color: var(--primary-dark);
}

.footer {
  background: #FFFFFF;
  border-top: 1px solid var(--border);
}

.footer-top {
  padding: 62px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 0.9fr 1fr 1.05fr;
  gap: 50px;
}

.footer-brand {
  max-width: 320px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.footer-logo .brand-name {
  font-size: 17px;
}

.footer-brand p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.85;
  margin: 0 0 16px;
}

.footer-col h3 {
  font-size: 15px;
  margin: 6px 0 14px;
  color: #3A4A5E;
  font-weight: 700;
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.footer-col ul a {
  display: inline-block;
  padding: 5px 0;
  color: #718197;
  font-size: 14px;
  line-height: 1.6;
  transition: color .2s, padding-left .2s;
}

.footer-col ul a:hover {
  color: var(--primary-dark);
  padding-left: 4px;
}

.footer-contact-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  color: #718197;
  font-size: 14px;
  padding-bottom: 10px;
}

.footer-contact-row svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 4px;
  color: var(--primary);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 0;
}

.footer-bottom .container {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  color: #8290A4;
  font-size: 13px;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.footer-links a {
  color: #6C7C90;
  transition: color .2s;
}

.footer-links a:hover {
  color: var(--primary);
}

.footer-links .sep {
  color: #CAD6E3;
}

@media (max-width: 1100px) {
  .header-inner {
    gap: 12px;
  }
  .command-search {
    width: 190px;
  }
  .entry-label {
    display: none;
  }
  .user-entry {
    width: 40px;
    padding: 0;
    justify-content: center;
  }
}

@media (max-width: 1024px) {
  .header-inner {
    flex-wrap: wrap;
    height: auto;
    min-height: var(--header-h);
    padding-top: 10px;
    padding-bottom: 10px;
    row-gap: 10px;
  }
  .site-header {
    height: auto;
  }
  .main-nav {
    display: none;
  }
  .site-header.nav-open .main-nav {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    width: 100%;
    order: 4;
    background: #FFFFFF;
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 10px;
    gap: 2px;
  }
  .nav-link.active::after {
    display: none;
  }
  .header-actions {
    margin-left: auto;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .command-search {
    order: 2;
    width: 100%;
  }
  .user-entry,
  .header-actions .btn-sm {
    order: 3;
  }
  .guide-wrap {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .toc-column {
    position: static;
  }
  .toc-card {
    overflow-x: auto;
  }
  .toc-links {
    flex-direction: row;
    flex-wrap: nowrap;
    width: max-content;
    min-width: 100%;
    padding-bottom: 4px;
  }
  .toc-link {
    padding: 8px 12px;
    white-space: nowrap;
  }
  .toc-card-title {
    display: none;
  }
}

@media (max-width: 820px) {
  .page-guide h1 {
    font-size: 38px;
  }
  .doc-section {
    padding: 28px 22px;
  }
  .form-cta-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px 24px;
  }
}

@media (max-width: 640px) {
  .container {
    width: 92%;
  }
  .header-actions {
    flex-wrap: wrap;
  }
  .header-inner {
    flex-wrap: wrap;
  }
  .brand-name {
    font-size: 16px;
  }
  .page-guide {
    padding-top: 34px;
  }
  .page-guide h1 {
    font-size: 30px;
  }
  .page-guide .lead {
    font-size: 16px;
  }
  .breadcrumb {
    border-radius: 8px;
    font-size: 13px;
  }
  .doc-section h2 {
    font-size: 20px;
  }
  .doc-head {
    align-items: flex-start;
    flex-direction: column;
  }
  .doc-figure {
    aspect-ratio: 16 / 10;
  }
  .section-sibling {
    flex-direction: column;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .form-submit-row .btn {
    width: 100%;
  }
  .form-cta {
    padding: 60px 0;
  }
  .cta-copy h2,
  .faq-head h2 {
    font-size: 27px;
  }
  .form-card {
    padding: 26px 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom .container {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* roulang page: article */
:root {
  --primary: #3170B8;
  --primary-deep: #265D9E;
  --primary-soft: #E7F1FA;
  --accent: #2C8C7D;
  --gold: #D9A441;
  --ink: #1F2937;
  --muted: #65758B;
  --border: #E2E9F2;
  --bg: #F7FAFC;
  --white: #FFFFFF;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 12px 30px rgba(45, 91, 139, .08);
  --shadow-hover: 0 20px 40px rgba(45, 91, 139, .12);
  --shadow-focus: 0 0 0 3px rgba(46, 111, 181, .18);
  --content: 1200px;
  --pad-lg: 32px;
  --pad-md: 24px;
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
  --font-num: "Inter", -apple-system, "Segoe UI", "PingFang SC", sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color .2s ease;
}

a:hover {
  color: var(--primary-deep);
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
}

button {
  border: 0;
  background: none;
  cursor: pointer;
}

.container {
  max-width: var(--content);
  margin: 0 auto;
  padding: 0 32px;
}

.section {
  padding: 88px 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 999px;
  padding: 6px 14px;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(26px, 3.2vw, 34px);
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.section-desc {
  max-width: 660px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
  margin-top: 14px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 20px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .01em;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background .2s ease, border-color .2s ease, box-shadow .2s ease, color .2s ease, transform .2s ease;
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-deep);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(46, 111, 181, .18);
}

.btn-outline {
  background: #fff;
  border-color: #cfd9e6;
  color: var(--ink);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-1px);
}

.btn-sm {
  min-height: 38px;
  padding: 0 15px;
  font-size: 14px;
}

.btn-lg {
  min-height: 48px;
  padding: 0 26px;
  font-size: 15px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .84);
  backdrop-filter: saturate(1.25) blur(14px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow .25s ease, background .25s ease;
}

.site-header.is-scrolled {
  box-shadow: 0 10px 26px rgba(45, 91, 139, .06);
  background: rgba(255, 255, 255, .94);
}

.header-inner {
  max-width: var(--content);
  height: 72px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex: 0 0 auto;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, #3E78C2, #255E9E);
  color: #fff;
  box-shadow: 0 8px 18px rgba(46, 111, 181, .22);
}

.brand-mark svg {
  width: 22px;
  height: 22px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-name {
  font-size: 19px;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: .01em;
}

.brand-sub {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .08em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 6px;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 72px;
  padding: 0 16px;
  color: #3C4A5C;
  font-size: 15px;
  font-weight: 500;
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}

.nav-link:hover {
  color: var(--primary);
}

.nav-link.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.header-actions {
  flex: 1 0 auto;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
}

.command-search {
  position: relative;
  width: 220px;
}

.cs-input {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 42px;
  padding: 0 12px;
  background: #F2F6FA;
  border: 1px solid #E1E8F0;
  border-radius: 999px;
  transition: border-color .2s ease, background .2s ease, box-shadow .2s ease;
}

.cs-input:focus-within {
  background: #fff;
  border-color: rgba(46, 111, 181, .5);
  box-shadow: 0 0 0 3px rgba(46, 111, 181, .12);
}

.cs-input svg {
  width: 16px;
  height: 16px;
  color: #8796A8;
  flex: 0 0 auto;
}

.cs-input input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-size: 14px;
  outline: none;
}

.cs-input input::placeholder {
  color: #9AA8B8;
}

.cs-input kbd {
  font-size: 10px;
  font-weight: 600;
  color: #98A6B7;
  border: 1px solid #D4DDE7;
  background: #fff;
  padding: 3px 6px;
  border-radius: 5px;
  font-family: var(--font-num);
  white-space: nowrap;
}

.command-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  right: 0;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-hover);
  padding: 10px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-5px);
  transition: all .2s ease;
  z-index: 60;
}

.command-search.is-open .command-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.cm-label {
  font-size: 12px;
  font-weight: 600;
  color: #9AA8B8;
  padding: 4px 10px 10px;
}

.command-menu a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 10px;
  border-radius: 9px;
  color: var(--ink);
  text-decoration: none;
  transition: background .16s ease;
}

.command-menu a:hover {
  background: var(--primary-soft);
}

.command-menu a span {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}

.command-menu a small {
  font-size: 12px;
  color: var(--muted);
}

.user-entry {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 42px;
  padding: 0 10px;
  color: #4C5C70;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  border-radius: 8px;
  transition: background .2s ease, color .2s ease;
}

.user-entry:hover {
  background: var(--primary-soft);
  color: var(--primary);
}

.user-entry svg {
  width: 18px;
  height: 18px;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: #fff;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  transition: border-color .2s ease;
}

.nav-toggle:hover {
  border-color: var(--primary);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: #3C4A5C;
  border-radius: 2px;
  transition: transform .25s ease, background .25s ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Article Page */
.page-main {
  padding: 40px 0 88px;
}

.article-single {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(226, 233, 242, .9);
  box-shadow: var(--shadow-card);
  padding: 56px 48px 48px;
  max-width: 1120px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 24px;
}

.breadcrumb a {
  color: #52728D;
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--primary);
}

.breadcrumb .crumb-divider {
  color: #AEBAC8;
}

.breadcrumb .crumb-current {
  color: #1F2E3F;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 420px;
}

.article-header {
  margin-bottom: 28px;
}

.article-title {
  font-size: clamp(32px, 4vw, 38px);
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 980px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 22px;
  margin-top: 20px;
  font-size: 13px;
  color: #75879C;
}

.article-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.article-meta-item svg {
  width: 16px;
  height: 16px;
  color: #9FAFC0;
}

.article-meta-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-soft);
  color: var(--primary);
  padding: 4px 12px;
  border-radius: 999px;
  font-weight: 500;
  font-size: 12px;
}

.article-cover {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--primary-soft);
  margin-bottom: 34px;
}

.article-cover img {
  width: 100%;
  aspect-ratio: 16 / 7;
  object-fit: cover;
}

.article-cover figcaption {
  padding: 9px 14px;
  font-size: 12px;
  color: #7D8FA3;
  background: #F6F9FC;
  border-top: 1px solid #EEF3F8;
}

.article-body {
  max-width: 760px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.9;
  color: #223141;
}

.article-body h1,
.article-body h2,
.article-body h3,
.article-body h4,
.article-body h5,
.article-body h6 {
  color: var(--ink);
  line-height: 1.4;
  font-weight: 700;
  margin: 1.9em 0 .65em;
}

.article-body h1 { font-size: 26px; }
.article-body h2 { font-size: 23px; margin-top: 2.2em; }
.article-body h3 { font-size: 19px; color: #24384A; }
.article-body h4 { font-size: 17px; color: #24384A; }

.article-body p {
  margin: 0 0 1.15em;
}

.article-body strong {
  font-weight: 700;
  color: var(--ink);
}

.article-body a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-body ul,
.article-body ol {
  margin: 0 0 1.2em;
  padding-left: 1.4em;
}

.article-body li {
  margin-bottom: .3em;
}

.article-body blockquote {
  border-left: 4px solid var(--primary);
  background: #F6FAFE;
  padding: 14px 18px;
  border-radius: 0 10px 10px 0;
  color: #41617E;
  margin: 1.4em 0;
}

.article-body code {
  font-family: var(--font-num);
  background: #EEF3F8;
  padding: 3px 7px;
  border-radius: 6px;
  font-size: .9em;
}

.article-body table {
  display: block;
  width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
  margin: 1.4em 0;
  text-align: left;
}

.article-body table th,
.article-body table td {
  border: 1px solid var(--border);
  padding: 10px 14px;
  font-size: 14px;
}

.article-body table th {
  background: #F2F7FC;
  font-weight: 600;
}

.article-foot {
  max-width: 760px;
  margin: 42px auto 0;
  padding-top: 26px;
  border-top: 1px solid #EDF2F7;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 12px;
  border-radius: 999px;
  background: #F0F5FA;
  color: #4A647D;
  font-size: 12px;
  font-weight: 500;
  border: 1px solid #E2EAF2;
  text-decoration: none;
  transition: background .2s ease, border-color .2s ease, color .2s ease;
}

.tag:hover {
  background: var(--primary-soft);
  border-color: rgba(46, 111, 181, .2);
  color: var(--primary);
}

.tag-blue {
  background: var(--primary-soft);
  color: var(--primary);
  border-color: rgba(46, 111, 181, .14);
}

.article-back {
  margin-top: 24px;
  text-align: center;
}

/* Guide Cards */
.guide-section {
  padding: 88px 0 32px;
  max-width: 1120px;
  margin: 0 auto;
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.guide-card {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: 0 6px 18px rgba(45, 91, 139, .04);
  overflow: hidden;
  transition: transform .22s ease, box-shadow .22s ease;
}

.guide-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.guide-card-cover {
  overflow: hidden;
  background: var(--primary-soft);
}

.guide-card-cover img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform .5s ease;
}

.guide-card:hover .guide-card-cover img {
  transform: scale(1.03);
}

.guide-card-content {
  padding: 20px 22px 22px;
}

.guide-card-content h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
}

.guide-card-content p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 14px;
}

.guide-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  text-decoration: none;
}

.guide-card-link svg {
  width: 15px;
  height: 15px;
  transition: transform .2s ease;
}

.guide-card-link:hover svg {
  transform: translateX(3px);
}

/* Not Found */
.not-found-panel {
  padding: 120px 0 160px;
}

.not-found-card {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
  padding: 70px 40px;
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.nf-mark {
  width: 64px;
  height: 64px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 20px;
}

.not-found-card h1 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 12px;
}

.not-found-card p {
  color: var(--muted);
  margin-bottom: 28px;
  font-size: 15px;
}

/* Lead Section */
.lead-section {
  position: relative;
  padding: 88px 0;
  background: var(--white);
  margin-top: 56px;
  border-top: 1px solid #EEF2F7;
  overflow: hidden;
}

.lead-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    linear-gradient(rgba(247, 250, 252, .93), rgba(255, 255, 255, .98)),
    url("/assets/images/backpic/back-1.png") center / cover no-repeat;
  z-index: 0;
}

.lead-inner {
  position: relative;
  z-index: 1;
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}

.lead-copy h2 {
  font-size: clamp(25px, 2.8vw, 32px);
  line-height: 1.35;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.lead-copy .lead-desc {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
  margin-bottom: 30px;
}

.lead-points {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-bottom: 14px;
}

.lead-point {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  font-size: 14px;
  color: #41576B;
}

.lead-point svg {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  color: var(--accent);
  margin-top: 3px;
}

.lead-privacy {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 12px;
  color: #8A9AA9;
  padding: 14px 0 4px;
}

.lead-privacy svg {
  width: 15px;
  height: 15px;
  color: #9FAFC0;
}

.form-modal-card {
  background: #fff;
  border-radius: 20px;
  border: 1px solid #E4ECF5;
  box-shadow: var(--shadow-hover);
  padding: 34px 32px 30px;
  position: relative;
}

.form-modal-card::before {
  content: "";
  position: absolute;
  top: 14px;
  right: 14px;
  bottom: 14px;
  left: 14px;
  border-radius: 14px;
  border: 1px solid rgba(46, 111, 181, .28);
  pointer-events: none;
}

.form-title {
  font-size: 18px;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 6px;
}

.form-subtitle {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 24px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: #3D5063;
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  height: 44px;
  padding: 0 13px;
  border: 1px solid #D8E2EC;
  border-radius: var(--radius-sm);
  background: #FBFCFE;
  color: var(--ink);
  font-size: 14px;
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}

textarea.form-control {
  height: auto;
  min-height: 88px;
  padding: 11px 13px;
  resize: vertical;
}

.form-control::placeholder {
  color: #A4B1BE;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(46, 111, 181, .12);
}

select.form-control {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='8' viewBox='0 0 14 8' fill='none' stroke='%235d7287' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m1.5 1.5 5.5 5 5.5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 13px center;
  padding-right: 36px;
  cursor: pointer;
}

.form-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 10px;
}

.form-response {
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
}

.form-response.error {
  color: #C04F4A;
}

/* FAQ Section */
.faq-section {
  padding: 88px 0;
  background: var(--bg);
}

.faq-container {
  max-width: 760px;
  margin: 0 auto;
}

.faq-title {
  font-size: clamp(26px, 3vw, 32px);
  font-weight: 800;
  color: var(--ink);
  text-align: center;
  margin-bottom: 8px;
}

.faq-subtitle {
  text-align: center;
  color: var(--muted);
  font-size: 15px;
  margin-bottom: 40px;
}

.accordion-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 4px 14px rgba(45, 91, 139, .04);
  padding: 0 20px;
  margin-bottom: 14px;
  transition: box-shadow .2s ease, border-color .2s ease;
}

.accordion-item.is-open {
  border-color: rgba(46, 111, 181, .28);
  box-shadow: 0 10px 24px rgba(45, 91, 139, .08);
}

.accordion-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  min-height: 58px;
  text-align: left;
  color: var(--ink);
  font-size: 15px;
  font-weight: 600;
}

.accordion-trigger:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
  border-radius: 8px;
}

.accordion-icon {
  position: relative;
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  border-radius: 50%;
  border: 1.5px solid var(--primary);
  transition: background .2s ease, transform .2s ease;
}

.accordion-icon::before,
.accordion-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--primary);
  border-radius: 2px;
  transform: translate(-50%, -50%);
}

.accordion-icon::before {
  width: 9px;
  height: 1.6px;
}

.accordion-icon::after {
  width: 1.6px;
  height: 9px;
  transition: transform .2s ease;
}

.accordion-item.is-open .accordion-icon {
  background: var(--primary);
}

.accordion-item.is-open .accordion-icon::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
}

.accordion-content-inner {
  padding: 0 42px 18px 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  background: #fff;
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.7fr 1fr 1fr 1.4fr;
  gap: 40px;
  padding-bottom: 52px;
}

.footer-brand .footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  margin-bottom: 18px;
}

.footer-logo .brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 10px;
}

.footer-logo .brand-mark svg {
  width: 20px;
  height: 20px;
}

.footer-logo .brand-name {
  font-size: 18px;
  font-weight: 800;
  color: var(--ink);
  line-height: 1.2;
}

.footer-logo .brand-sub {
  font-size: 12px;
  color: var(--muted);
}

.footer-brand > p {
  font-size: 13px;
  line-height: 1.8;
  color: #7C8C9F;
  max-width: 330px;
}

.footer-col h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 10px;
}

.footer-col ul a {
  color: #6A7C90;
  font-size: 14px;
  text-decoration: none;
  transition: color .2s ease;
}

.footer-col ul a:hover {
  color: var(--primary);
}

.footer-contact-row {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  font-size: 13px;
  color: #6A7C90;
  line-height: 1.6;
  margin-bottom: 14px;
}

.footer-contact-row svg {
  flex: 0 0 auto;
  width: 17px;
  height: 17px;
  color: #9AA8B8;
  margin-top: 2px;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  padding: 24px 0;
  border-top: 1px solid #E9EFF5;
  font-size: 13px;
  color: #8A99A8;
}

.footer-links {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.footer-links a {
  color: #6D7F92;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--primary);
}

.footer-links .sep {
  color: #C6D1DC;
}

/* Responsive */
@media (max-width: 1120px) {
  .guide-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .guide-card-content {
    padding: 18px;
  }
}

@media (max-width: 1024px) {
  .main-nav {
    position: fixed;
    top: 72px;
    left: 0;
    width: 100%;
    background: #fff;
    padding: 12px 24px 20px;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 18px 40px rgba(45, 91, 139, .08);
    flex-direction: column;
    align-items: flex-start;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity .22s ease, transform .22s ease, visibility .22s;
    margin-left: 0;
  }

  .main-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .main-nav .nav-link {
    width: 100%;
    height: 48px;
    border-bottom: none;
    border-radius: 8px;
    padding: 0 14px;
    font-size: 15px;
  }

  .main-nav .nav-link:hover {
    background: var(--primary-soft);
  }

  .main-nav .nav-link.active {
    color: var(--primary);
    background: var(--primary-soft);
  }

  .nav-toggle {
    display: inline-flex;
  }

  .command-search {
    width: 200px;
  }
}

@media (max-width: 768px) {
  .container,
  .header-inner {
    padding: 0 20px;
  }

  .section {
    padding: 64px 0;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .header-inner {
    gap: 10px;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
  }

  .brand-name {
    font-size: 17px;
  }

  .brand-sub {
    font-size: 10px;
  }

  .command-search,
  .user-entry {
    display: none;
  }

  .header-inner .btn-sm {
    margin-left: auto;
    min-height: 38px;
  }

  .article-single {
    padding: 30px 22px 28px;
    border-radius: 14px;
  }

  .article-title {
    font-size: 27px;
  }

  .article-meta {
    gap: 8px 14px;
  }

  .article-cover img {
    aspect-ratio: 16 / 10;
  }

  .guide-section {
    padding-top: 64px;
  }

  .guide-grid {
    grid-template-columns: 1fr;
  }

  .lead-inner {
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 0 20px;
  }

  .form-modal-card {
    padding: 28px 22px 24px;
  }

  .form-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .form-row {
    gap: 16px;
  }

  .form-modal-card::before {
    top: 10px;
    right: 10px;
    bottom: 10px;
    left: 10px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px 24px;
    padding-bottom: 32px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
  }

  .not-found-card {
    padding: 48px 20px;
  }

  .not-found-card h1 {
    font-size: 22px;
  }
}

@media (max-width: 520px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-brand {
    grid-column: auto;
  }

  .container,
  .header-inner {
    padding: 0 14px;
  }

  .header-actions {
    gap: 6px;
  }

  .brand-name {
    font-size: 15px;
  }

  .brand-mark {
    width: 30px;
    height: 30px;
    border-radius: 8px;
  }

  .band-sub {
    display: none;
  }

  .article-single {
    padding: 22px 14px 22px;
  }

  .article-title {
    font-size: 23px;
  }

  .breadcrumb .crumb-current {
    max-width: 180px;
  }

  .lead-section {
    padding: 50px 0;
  }

  .section-title {
    font-size: 24px;
  }

  .form-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .form-actions .btn {
    width: 100%;
  }
}

/* roulang page: category2 */
:root {
  --primary: #2E6FB5;
  --primary-hover: #1E5D9F;
  --primary-soft: #E7F1FA;
  --primary-soft-two: #EFF5FB;
  --accent: #2F8C7D;
  --warm: #F4BB7A;
  --bg: #F7FAFC;
  --card: #FFFFFF;
  --text: #1F2937;
  --muted: #65758B;
  --line: #E2E9F2;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --shadow: 0 12px 30px rgba(45, 91, 139, .08);
  --shadow-md: 0 16px 34px rgba(45, 91, 139, .1);
  --shadow-hover: 0 20px 40px rgba(45, 91, 139, .14);
  --max-width: 1200px;
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
}
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body.nav-lock {
  overflow: hidden;
}
a {
  text-decoration: none;
  color: inherit;
}
ul,
ol {
  list-style: none;
}
img {
  max-width: 100%;
  display: block;
}
button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
  border: none;
  outline: none;
  background: none;
}
table {
  width: 100%;
  border-collapse: collapse;
}
.container {
  width: min(100% - 48px, var(--max-width));
  margin-right: auto;
  margin-left: auto;
}
.section-space {
  padding: 92px 0;
}
.section-head {
  margin-bottom: 42px;
}
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 999px;
  padding: 6px 14px;
  letter-spacing: .04em;
  margin-bottom: 16px;
}
.section-eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}
.section-title {
  font-size: 28px;
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--text);
}
.section-desc {
  max-width: 680px;
  margin-top: 14px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 46px;
  padding: 0 22px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  transition: background .2s ease, border-color .2s ease, color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 20px rgba(46, 111, 181, .18);
}
.btn-primary:hover {
  background: var(--primary-hover);
  color: #fff;
  box-shadow: 0 12px 26px rgba(46, 111, 181, .24);
  transform: translateY(-1px);
}
.btn-primary:active {
  transform: translateY(1px);
  box-shadow: none;
}
.btn-outline {
  border: 1px solid var(--primary);
  color: var(--primary);
  background: #fff;
}
.btn-outline:hover {
  border-color: var(--primary-hover);
  color: var(--primary-hover);
  background: var(--primary-soft);
}
.btn-outline:active {
  background: var(--primary-soft-two);
}
.btn-light {
  background: #fff;
  color: var(--primary);
}
.btn-light:hover {
  background: var(--primary-soft);
}
.btn:focus-visible {
  outline: 3px solid rgba(46, 111, 181, .35);
  outline-offset: 2px;
}
.btn-sm {
  height: 40px;
  padding: 0 18px;
  font-size: 14px;
}
.btn-block {
  width: 100%;
}
.tag-neutral,
.tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 24px;
  padding: 0 10px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  color: var(--primary);
  background: var(--primary-soft);
  line-height: 1;
}
.tag-accent {
  background: #F4F8FE;
  color: var(--primary-hover);
}
.tag-muted {
  background: #EDF2F7;
  color: #52627A;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, .96);
  border-bottom: 1px solid rgba(226, 233, 242, .9);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transition: box-shadow .2s ease;
}
.site-header.scrolled {
  box-shadow: 0 10px 28px rgba(36, 70, 105, .08);
}
.header-inner {
  max-width: calc(100% - 64px);
  margin: 0 auto;
  height: 72px;
  display: flex;
  align-items: center;
  gap: 26px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}
.brand-mark {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  flex: none;
}
.brand-mark svg {
  width: 20px;
  height: 20px;
}
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.brand-name {
  font-size: 17px;
  font-weight: 700;
  color: #18283B;
  letter-spacing: .01em;
}
.brand-sub {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .12em;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 14px;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  height: 44px;
  padding: 0 14px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  color: #44556B;
  position: relative;
  transition: color .2s ease, background .2s ease;
}
.nav-link:hover {
  color: var(--primary);
  background: var(--primary-soft);
}
.nav-link:focus-visible {
  outline: 3px solid rgba(46, 111, 181, .28);
  outline-offset: -2px;
}
.nav-link.active {
  color: var(--primary);
  font-weight: 600;
  background: var(--primary-soft);
}
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: -14px;
  height: 2px;
  border-radius: 2px;
  background: var(--primary);
}
.header-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
}
.command-search {
  position: relative;
}
.cs-input {
  width: 228px;
  height: 40px;
  display: flex;
  align-items: center;
  gap: 8px;
  background: #F2F6FA;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 0 6px 0 14px;
  transition: border .2s, background .2s, box-shadow .2s;
  cursor: pointer;
}
.cs-input:hover {
  background: #EDF3F9;
  border-color: #D2DFEB;
}
.cs-input:focus-within {
  background: #fff;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(46, 111, 181, .14);
}
.cs-input svg {
  width: 15px;
  height: 15px;
  color: #8497A9;
  flex: none;
}
.cs-input input {
  width: 100%;
  font-size: 13px;
  color: #293D51;
  background: transparent;
}
.cs-input input::placeholder {
  color: #9AA9BA;
}
.cs-input kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 24px;
  padding: 0 8px;
  background: #fff;
  border: 1px solid #DDE6EF;
  border-radius: 6px;
  font-size: 11px;
  color: #7D8EA2;
  font-family: inherit;
  flex: none;
}
.command-menu {
  position: absolute;
  left: 0;
  right: 0;
  top: calc(100% + 12px);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  box-shadow: 0 18px 44px rgba(28, 65, 103, .16);
  padding: 10px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
}
.command-menu.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.cm-label {
  font-size: 12px;
  color: var(--muted);
  padding: 6px 10px 10px;
}
.command-menu a {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 12px;
  border-radius: 9px;
  color: var(--text);
  transition: background .16s;
}
.command-menu a:hover {
  background: var(--primary-soft);
}
.command-menu a span {
  font-size: 14px;
  font-weight: 600;
}
.command-menu a small {
  font-size: 12px;
  color: var(--muted);
}
.user-entry {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 40px;
  padding: 0 14px;
  border-radius: 8px;
  color: #44556B;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid transparent;
  transition: background .2s, border .2s, color .2s;
}
.user-entry:hover {
  color: var(--primary);
  background: var(--primary-soft);
}
.user-entry svg {
  width: 18px;
  height: 18px;
}
.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  color: #33475B;
  border: 1px solid var(--line);
  background: #fff;
}
.nav-toggle:hover {
  color: var(--primary);
  border-color: var(--primary);
}
.nav-toggle svg {
  width: 20px;
  height: 20px;
}

/* ===== Page Intro Banner ===== */
.page-banner {
  position: relative;
  padding: 86px 0 62px;
  overflow: hidden;
  background-color: #E9F2FA;
}
.page-banner .banner-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .22;
  pointer-events: none;
}
.banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(234, 243, 250, .92) 0%, rgba(247, 251, 254, .8) 60%, rgba(255, 255, 255, .1) 100%);
  pointer-events: none;
}
.page-banner .container {
  position: relative;
  z-index: 2;
  max-width: calc(100% - 96px);
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 22px;
  line-height: 1.6;
}
.breadcrumb a {
  color: var(--primary);
  font-weight: 500;
  transition: color .2s;
}
.breadcrumb a:hover {
  color: var(--primary-hover);
}
.breadcrumb .crumb-line {
  color: #B0BECD;
}
.page-title {
  font-size: 42px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -.02em;
  margin-bottom: 18px;
  color: #16283B;
}
.page-lead {
  max-width: 760px;
  color: #435468;
  font-size: 15px;
  line-height: 1.9;
}

/* ===== Service Listing ===== */
.service-list-section {
  padding-top: 92px;
  padding-bottom: 40px;
}
.service-head-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 30px;
  margin-bottom: 54px;
}
.service-head-row .section-desc {
  margin-top: 0;
  flex: 0 1 640px;
}
.service-list {
  display: flex;
  flex-direction: column;
}
.service-line {
  position: relative;
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr) minmax(0, 1.26fr) auto;
  align-items: start;
  gap: 24px;
  padding: 38px 0;
  border-bottom: 1px solid var(--line);
  transition: background .2s ease;
}
.service-line::before {
  content: "";
  position: absolute;
  left: -18px;
  top: 32px;
  bottom: 34px;
  width: 3px;
  border-radius: 4px;
  background: var(--primary-soft);
  opacity: 0;
  transition: opacity .2s;
}
.service-line:hover::before {
  opacity: 1;
}
.service-num {
  font-size: 48px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.03em;
  color: #E3EDF5;
  font-variant-numeric: tabular-nums;
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", sans-serif;
}
.service-line:hover .service-num {
  color: var(--primary);
}
.service-main {
  padding-top: 4px;
  min-width: 0;
}
.service-title {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 21px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -.01em;
  color: #172A3C;
  margin-bottom: 12px;
}
.service-title .tag {
  flex: none;
}
.line-desc {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 26px;
  font-size: 14px;
  line-height: 1.9;
  color: #5A6A7E;
  max-width: 790px;
}
.line-desc p {
  min-width: 0;
}
.line-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 16px;
}
.line-tags .tag {
  height: 22px;
  font-size: 12px;
  padding: 0 8px;
  background: #F0F5FA;
  color: #556B82;
}
.line-more {
  align-self: center;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  height: 40px;
  padding: 0 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: 999px;
  transition: background .2s, color .2s, transform .2s;
}
.line-more:hover {
  background: var(--primary);
  color: #fff;
  transform: translateX(3px);
}
.line-more svg {
  width: 15px;
  height: 15px;
  transition: transform .2s;
}
.line-more:hover svg {
  transform: translateX(2px);
}

/* ===== Quote Banner ===== */
.quote-banner {
  position: relative;
  margin: 30px 0 46px;
  padding: 52px 44px;
  border-radius: 18px;
  overflow: hidden;
  background: url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  display: flex;
  align-items: flex-start;
  gap: 28px;
  justify-content: space-between;
}
.quote-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(96deg, rgba(255, 255, 255, .96), rgba(235, 244, 251, .96), rgba(255, 255, 255, .82));
}
.quote-content {
  position: relative;
  z-index: 1;
  max-width: 66%;
}
.quote-content .quote-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(255, 255, 255, .7);
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid rgba(46, 111, 181, .14);
  margin-bottom: 14px;
}
.quote-content p {
  font-size: 17px;
  line-height: 1.9;
  color: #25384C;
  font-weight: 500;
}
.quote-aside {
  position: relative;
  z-index: 1;
  width: 26%;
  border-left: 1px solid rgba(102, 126, 154, .22);
  padding-left: 24px;
  padding-top: 6px;
  padding-bottom: 6px;
}
.quote-aside span {
  font-size: 13px;
  line-height: 1.9;
  color: var(--muted);
}

/* ===== Update / Dynamic ===== */
.dynamic-section {
  padding: 70px 0 90px;
  background: #fff;
}
.dynamic-row {
  display: grid;
  grid-template-columns: 1fr 1.18fr;
  align-items: center;
  gap: 60px;
}
.dynamic-head .section-desc {
  margin-bottom: 22px;
}
.dynamic-list {
  display: grid;
  gap: 14px;
}
.update-item {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
  padding: 14px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--card);
  transition: box-shadow .2s ease, transform .2s ease, border-color .2s ease;
}
.update-item:hover {
  box-shadow: var(--shadow);
  transform: translateY(-2px);
  border-color: #C9D8E8;
}
.update-thumb {
  width: 132px;
  height: 84px;
  border-radius: 11px;
  object-fit: cover;
  background: var(--primary-soft);
}
.update-info {
  min-width: 0;
}
.update-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 5px;
}
.update-info h3 {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.55;
  color: #23364A;
  margin-bottom: 5px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.update-info p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.update-arrow {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--primary);
  background: var(--primary-soft);
  flex: none;
  transition: background .2s, color .2s;
}
.update-item:hover .update-arrow {
  background: var(--primary);
  color: #fff;
}
.update-arrow svg {
  width: 16px;
  height: 16px;
}

/* ===== FAQ ===== */
.faq-section {
  background: #F0F6FB;
  padding: 96px 0;
}
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
}
.faq-title-wrap {
  text-align: center;
  margin-bottom: 46px;
}
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: #fff;
  border-radius: 14px;
  border: 1px solid rgba(226, 233, 242, .85);
  overflow: hidden;
  transition: box-shadow .2s, border-color .2s;
}
.faq-item.open {
  border-color: #BFD4E8;
  box-shadow: 0 16px 34px rgba(45, 91, 139, .08);
}
.faq-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  text-align: left;
  padding: 18px 22px;
  min-height: 58px;
  color: #213247;
  background: #fff;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  cursor: pointer;
  transition: background .18s;
}
.faq-btn:hover {
  background: #FBFDFE;
  color: var(--primary);
}
.faq-btn .faq-icon {
  width: 28px;
  height: 28px;
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid #D5E2EE;
  color: var(--primary);
  transition: background .2s, color .2s, transform .2s, border-color .2s;
}
.faq-btn .faq-icon svg {
  width: 14px;
  height: 14px;
  transition: transform .2s;
}
.faq-item.open .faq-btn .faq-icon {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .24s ease;
}
.faq-answer-inner {
  padding: 0 22px 20px;
  font-size: 14px;
  line-height: 1.9;
  color: #5B6A7B;
  border-top: 1px solid transparent;
}
.faq-item.open .faq-answer-inner {
  border-top: 1px solid #F1F5F9;
}

/* ===== CTA Contact ===== */
.contact-section {
  padding: 0 0 92px;
  background: var(--bg);
  scroll-margin-top: 80px;
}
.contact-shell {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1.12fr;
  gap: 50px;
  align-items: center;
  padding: 64px 70px 70px;
  border-radius: 24px;
  background: #fff;
  box-shadow: var(--shadow-md);
  border: 1px solid #E7EDF4;
  overflow: hidden;
  scroll-margin-top: 90px;
}
.contact-shell::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 8px;
  background: var(--primary);
  border-radius: 8px 0 0 8px;
}
.contact-left h2 {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 22px;
}
.contact-value-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 20px;
}
.contact-value {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: #536478;
  line-height: 1.7;
}
.contact-value svg {
  flex: none;
  width: 18px;
  height: 18px;
  color: var(--accent);
  margin-top: 3px;
}
.contact-privacy {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
  margin-top: 28px;
  line-height: 1.7;
}
.contact-privacy svg {
  flex: none;
  width: 16px;
  height: 16px;
  color: var(--primary);
  margin-top: 4px;
}
.contact-form-card {
  background: #ffffff;
  border: 1px solid #E7EEF5;
  border-radius: 18px;
  box-shadow: 0 16px 36px rgba(45, 91, 139, .08);
  padding: 30px 30px 24px;
}
.form-heading {
  margin-bottom: 22px;
}
.form-heading h3 {
  font-size: 19px;
  font-weight: 700;
  color: #172B3E;
  margin-bottom: 5px;
}
.form-heading p {
  font-size: 13px;
  color: var(--muted);
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}
.form-group.full {
  grid-column: 1 / -1;
}
.form-label {
  font-size: 13px;
  font-weight: 500;
  color: #3D4F63;
}
.form-control {
  height: 44px;
  width: 100%;
  border: 1px solid #DDE6EF;
  border-radius: 8px;
  background: #F9FBFD;
  padding: 0 13px;
  font-size: 14px;
  color: var(--text);
  transition: background .2s, border .2s, box-shadow .2s;
}
.form-control:hover {
  border-color: #BCD0E2;
}
.form-control:focus {
  background: #fff;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(46, 111, 181, .12);
}
textarea.form-control {
  height: 108px;
  resize: vertical;
  padding-top: 10px;
  padding-bottom: 10px;
}
.form-submit-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  margin-top: 18px;
}
.form-submit-row .btn {
  min-width: 168px;
}
.form-msg {
  font-size: 13px;
  color: var(--accent);
  min-height: 20px;
  line-height: 1.5;
}
.form-msg.error {
  color: #C0564B;
}

/* ===== Next CTA ===== */
.next-section {
  background: #fff;
  padding: 70px 0;
  border-top: 1px solid var(--line);
}
.next-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
}
.next-card {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 26px;
  background: var(--bg);
  border-radius: 16px;
  border: 1px solid var(--line);
  transition: box-shadow .22s, transform .22s, background .22s;
}
.next-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  background: #fff;
}
.next-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: .06em;
  margin-bottom: 7px;
}
.next-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: #1B2E43;
  margin-bottom: 9px;
}
.next-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.7;
  max-width: 340px;
}
.next-arrow {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  background: var(--primary-soft);
  transition: background .2s, color .2s, transform .2s;
}
.next-card:hover .next-arrow {
  background: var(--primary);
  color: #fff;
  transform: translateX(3px);
}
.next-arrow svg {
  width: 18px;
  height: 18px;
}

/* ===== Footer ===== */
.site-footer {
  background: #FFFFFF;
  border-top: 1px solid var(--line);
  padding: 70px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.45fr 1fr 1fr 1.05fr;
  gap: 40px;
  padding-bottom: 44px;
}
.footer-brand p {
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--muted);
  max-width: 320px;
}
.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.footer-logo .brand-mark {
  width: 38px;
  height: 38px;
}
.footer-logo .brand-name {
  font-size: 18px;
}
.footer-col h3 {
  font-size: 15px;
  font-weight: 600;
  color: #21344A;
  margin-bottom: 16px;
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-col ul a {
  color: #5D6C7E;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  transition: color .2s;
}
.footer-col ul a:hover {
  color: var(--primary);
}
.footer-contact-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: #5D6C7E;
  margin-bottom: 10px;
  line-height: 1.6;
}
.footer-contact-row svg {
  width: 16px;
  height: 16px;
  flex: none;
  color: var(--primary);
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--line);
  padding: 20px 0 24px;
  color: #7B8A9C;
  font-size: 13px;
}
.footer-bottom a {
  color: #7B8A9C;
  transition: color .2s;
}
.footer-bottom a:hover {
  color: var(--primary);
}
.footer-links {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 9px;
  align-items: center;
}
.footer-links .sep {
  color: #CBD6E2;
}

/* ===== Responsive ===== */
@media (max-width: 1200px) {
  .container,
  .page-banner .container {
    max-width: calc(100% - 56px);
  }
  .header-inner {
    max-width: calc(100% - 48px);
  }
  .command-menu {
    right: auto;
    left: auto;
    width: 260px;
  }
}
@media (max-width: 1024px) {
  .section-space {
    padding: 76px 0;
  }
  .container {
    width: min(100% - 40px, 1100px);
  }
  .header-inner {
    max-width: calc(100% - 32px);
  }
  .main-nav {
    gap: 2px;
  }
  .nav-link {
    padding: 0 10px;
    font-size: 14px;
  }
  .cs-input {
    width: 178px;
  }
  .entry-label {
    display: none;
  }
  .service-line {
    grid-template-columns: 64px minmax(0, 1fr) auto;
    gap: 18px;
  }
  .service-line .line-desc {
    grid-column: 1 / -1;
    grid-template-columns: 1fr;
    margin-top: 4px;
  }
  .dynamic-row {
    grid-template-columns: 1fr;
    gap: 34px;
  }
  .contact-shell {
    padding: 50px 42px;
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .quote-content,
  .quote-aside {
    max-width: none;
    width: 100%;
  }
  .quote-aside {
    border-left: 0;
    padding-left: 0;
    border-top: 1px solid rgba(102, 126, 154, .2);
    padding-top: 14px;
    margin-top: 4px;
  }
  .footer-grid {
    grid-template-columns: 1.2fr 1fr 1fr;
  }
  .footer-col:last-child {
    grid-column: 1 / -1;
  }
}
@media (max-width: 900px) {
  .service-line {
    grid-template-columns: 48px minmax(0, 1fr) auto;
    gap: 16px;
  }
  .service-num {
    font-size: 38px;
  }
  .update-item {
    grid-template-columns: 112px minmax(0, 1fr) auto;
  }
  .update-thumb {
    width: 112px;
    height: 78px;
  }
}
@media (max-width: 767px) {
  body {
    line-height: 1.75;
  }
  .container,
  .page-banner .container {
    width: calc(100% - 32px);
    max-width: none;
  }
  .section-space {
    padding: 64px 0;
  }
  .section-head {
    margin-bottom: 28px;
  }
  .section-title {
    font-size: 24px;
  }
  .header-inner {
    height: 64px;
    max-width: calc(100% - 24px);
    flex-wrap: nowrap;
  }
  .brand-name {
    font-size: 16px;
  }
  .brand-sub {
    display: none;
  }
  .main-nav {
    position: fixed;
    z-index: 999;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    padding: 18px 20px 20px;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 20px 40px rgba(29, 65, 100, .12);
    margin: 0;
    transform: translateY(-14px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity .2s, transform .2s, visibility .2s;
  }
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
  .nav-link {
    height: 46px;
    font-size: 16px;
  }
  .nav-link.active::after {
    bottom: -1px;
    left: 20px;
    right: auto;
    width: 26px;
  }
  .header-actions {
    gap: 6px;
  }
  .command-search {
    display: none;
  }
  .user-entry {
    padding: 0 8px;
    color: var(--primary);
  }
  .user-entry svg {
    width: 20px;
    height: 20px;
  }
  .btn-sm {
    height: 38px;
    padding: 0 14px;
    font-size: 14px;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .page-banner {
    padding: 50px 0 38px;
  }
  .page-title {
    font-size: 32px;
    margin-bottom: 12px;
  }
  .page-lead {
    font-size: 14px;
    line-height: 1.85;
  }
  .service-list-section {
    padding-top: 64px;
    padding-bottom: 24px;
  }
  .service-head-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 29px;
  }
  .service-line {
    grid-template-columns: 38px 1fr;
    gap: 8px 14px;
    padding: 26px 0;
  }
  .service-line::before {
    left: -8px;
  }
  .service-num {
    font-size: 30px;
    align-self: start;
    padding-top: 2px;
  }
  .service-main {
    grid-column: 1 / -1;
    padding-top: 2px;
  }
  .service-main .line-desc {
    grid-column: auto;
    grid-template-columns: 1fr;
    margin-top: 0;
  }
  .line-more {
    grid-column: 2;
    justify-self: start;
    margin-top: -2px;
  }
  .quote-banner {
    margin: 26px 0 34px;
    padding: 28px 24px;
    flex-direction: column;
    gap: 16px;
  }
  .quote-content p {
    font-size: 15px;
  }
  .dynamic-section {
    padding: 58px 0 66px;
  }
  .update-item {
    grid-template-columns: 84px minmax(0, 1fr) auto;
    padding: 10px;
    gap: 12px;
  }
  .update-thumb {
    width: 84px;
    height: 72px;
    border-radius: 8px;
  }
  .update-info h3 {
    font-size: 14px;
  }
  .update-info p {
    display: none;
  }
  .faq-section {
    padding: 64px 0;
  }
  .faq-title-wrap {
    margin-bottom: 26px;
  }
  .faq-btn {
    padding: 14px 16px;
    font-size: 14px;
    line-height: 1.6;
  }
  .faq-answer-inner {
    padding: 0 16px 16px;
  }
  .contact-section {
    padding: 0 0 70px;
  }
  .contact-shell {
    padding: 32px 18px;
    grid-template-columns: 1fr;
    gap: 28px;
    border-radius: 18px;
  }
  .form-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .form-group.full {
    grid-column: 1;
  }
  .contact-left h2 {
    font-size: 24px;
  }
  .next-section {
    padding: 50px 0;
  }
  .next-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .next-card {
    padding: 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px 20px;
    padding-bottom: 32px;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
  .footer-brand p {
    max-width: none;
  }
  .footer-bottom {
    flex-direction: column;
    justify-content: center;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .brand-mark {
    width: 30px;
    height: 30px;
    border-radius: 9px;
  }
  .brand-mark svg {
    width: 18px;
    height: 18px;
  }
  .btn-sm {
    font-size: 13px;
    padding: 0 12px;
  }
  .user-entry {
    display: none;
  }
  .update-item {
    grid-template-columns: 1fr;
  }
  .update-thumb {
    width: 100%;
    height: 96px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-col:last-child {
    grid-column: auto;
  }
  .footer-links {
    justify-content: center;
  }
}

/* roulang page: category3 */
:root{
  --primary:#2E6FB5;
  --primary-dark:#24578F;
  --primary-deep:#1D4D7A;
  --primary-soft:#E7F1FA;
  --primary-mist:#F2F7FC;
  --green:#2B8A7B;
  --green-soft:#E3F2EF;
  --gold:#D9A560;
  --bg:#F7FAFC;
  --surface:#FFFFFF;
  --text:#1F2937;
  --muted:#65758B;
  --line:#E2E9F2;
  --radius-xs:6px;
  --radius-sm:10px;
  --radius-md:14px;
  --radius-lg:18px;
  --radius-xl:22px;
  --shadow:0 12px 30px rgba(45,91,139,.08);
  --shadow-hover:0 20px 40px rgba(45,91,139,.12);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,h5,p{margin:0;font-weight:600}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
@media (max-width:520px){
  .container{padding:0 18px}
}
.spacer{padding:50px 0 0}
.block-padding{padding:96px 0}
@media (max-width:768px){.block-padding{padding:64px 0 40px}}
.section-outer{padding:92px 0 100px}
@media (max-width:768px){.section-outer{padding:60px 0 66px}}
.section-head{max-width:860px;margin:0 auto 64px;text-align:center}
.section-head.section-head-left{margin-left:0;text-align:left}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.04em;color:var(--primary);background:var(--primary-soft);padding:7px 14px;border-radius:100px;margin-bottom:14px}
.eyebrow:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary)}
.section-title{font-size:clamp(27px,3.4vw,40px);line-height:1.2;color:var(--text)}
.section-sub{max-width:760px;margin:16px auto 0;color:var(--muted);font-weight:400;line-height:1.8}
.section-head-left .section-sub{margin-left:0}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:8px;height:48px;padding:0 24px;
  font-size:15px;font-weight:600;cursor:pointer;
  background:var(--primary);color:#fff;line-height:1;
  box-shadow:0 8px 20px rgba(46,111,181,.18);
  transition:all .22s ease;
  white-space:nowrap;
}
.btn:hover{background:var(--primary-dark);transform:translateY(-1px);color:#fff;box-shadow:0 12px 24px rgba(46,111,181,.24)}
.btn:active{transform:translateY(0)}
.btn:focus-visible{outline:3px solid rgba(46,111,181,.25);outline-offset:2px}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:8px}
.btn-ghost{background:#fff;border-color:#D7E1EC;color:var(--primary);box-shadow:none}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary)} 
.btn-dark{background:var(--text);color:#fff}
.btn-dark:hover{background:#111827}
.kbd{display:inline-block;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:11px;line-height:1;padding:4px 7px;border-radius:5px;border:1px solid #D7E1EC;border-bottom-width:2px;color:var(--muted);background:#fff}
.tag{display:inline-flex;align-items:center;gap:6px;background:var(--primary-mist);border:1px solid #DEEAF5;color:var(--primary-deep);border-radius:6px;font-size:13px;padding:5px 10px;line-height:1.3}
.tag.tag-green{background:var(--green-soft);border-color:#CBE7E1;color:var(--green)}
.tag.tag-warm{background:#FBF2E7;border-color:#EEDBC5;color:#9A6A2E}
@media (max-width:768px){.btn{height:44px;padding:0 18px}} 
/* ===== header / nav ===== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.9);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(226,233,242,.8);
}
.scrolled{box-shadow:0 10px 30px rgba(45,91,139,.07)}
.header-inner{
  max-width:1280px;margin:0 auto;height:72px;padding:0 24px;
  display:flex;align-items:center;gap:18px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;min-width:0}
.brand-mark{width:38px;height:38px;flex-shrink:0;border-radius:11px;background:var(--primary-soft);color:var(--primary);display:inline-flex;align-items:center;justify-content:center;transition:background .25s}
.brand:hover .brand-mark{background:#DCEAF8}
.brand-mark svg{width:20px;height:20px}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand-name{font-size:18px;font-weight:700;letter-spacing:.02em;color:var(--text)}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.18em;margin-top:2px;white-space:nowrap}
.main-nav{margin-left:10px;display:flex;align-items:center;gap:4px}
.main-nav .nav-link{
  padding:8px 14px;font-size:15px;color:var(--muted);border-radius:8px;font-weight:500;
  transition:all .2s ease;position:relative;line-height:1.4;
}
.main-nav .nav-link:hover{color:var(--primary);background:var(--primary-soft)}
.main-nav .nav-link.active{color:var(--primary);background:var(--primary-soft);font-weight:600}
.main-nav .nav-link.active::after{
  position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  content:"";width:16px;height:2px;border-radius:2px;background:var(--primary);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:11px}
.command-search{position:relative}
.cs-input{
  width:216px;height:40px;display:flex;align-items:center;gap:7px;
  background:#F3F6FA;border:1px solid #E3E9F1;border-radius:100px;padding:0 12px;
  transition:all .2s ease; cursor:text;
}
.cs-input:focus-within{background:#fff;border-color:var(--primary);box-shadow:0 0 0 3px rgba(46,111,181,.09)}
.cs-input svg{width:16px;height:16px;color:var(--muted);flex-shrink:0}
.cs-input input{border:0;background:transparent;font-size:14px;width:100%;min-width:0;outline:none;color:var(--text)}
.cs-input input::placeholder{color:#8C9BB0}
.cs-input .kbd{margin-left:auto;flex-shrink:0}
.command-menu{
  display:block;opacity:0;visibility:hidden;transform:translateY(8px);
  position:absolute;right:0;top:48px;width:300px;background:#fff;
  border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-hover);
  padding:10px;transition:opacity .2s ease,transform .2s ease,visibility .2s;z-index:90;
}
.command-menu.open{opacity:1;visibility:visible;transform:translateY(0)}
.cm-label{font-size:12px;color:var(--muted);padding:6px 10px;letter-spacing:.04em}
.command-menu a{
  display:flex;flex-direction:column;gap:2px;padding:10px 11px;border-radius:10px;transition:background .18s;
}
.command-menu a:hover{background:#F2F7FC}
.command-menu a span{font-size:15px;font-weight:600;color:var(--text)}
.command-menu a small{font-size:13px;color:var(--muted);font-weight:400}
.user-entry{
  display:inline-flex;align-items:center;gap:7px;height:40px;padding:0 12px;border-radius:100px;
  color:var(--text);font-size:14px;font-weight:500;transition:all .2s ease;
}
.user-entry:hover{background:var(--primary-soft);color:var(--primary)}
.user-entry svg{width:18px;height:18px}
.nav-toggle{display:none;width:42px;height:42px;background:var(--surface);border:1px solid var(--line);border-radius:10px;align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer;padding:0}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:3px;background:var(--text);transition:all .25s ease}
.nav-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
@media (max-width:1024px){
  .cs-input{width:130px}
  .entry-label{display:none}
  .user-entry{padding:0 9px}
}
@media (max-width:900px){
  .main-nav{
    position:absolute;top:72px;left:16px;right:16px;background:#fff;border-radius:18px;
    box-shadow:var(--shadow-hover);border:1px solid var(--line);padding:18px;
    flex-direction:column;align-items:stretch;display:flex;gap:8px;
    opacity:0;transform:translateY(-12px);visibility:hidden;transition:all .2s ease;
  }
  .main-nav.open{opacity:1;transform:translateY(0);visibility:visible}
  .main-nav .nav-link{display:flex;align-items:center;min-height:44px;justify-content:space-between;padding:10px 14px;border-radius:10px;font-size:16px}
  .nav-toggle{display:inline-flex}
  .header-inner{flex-wrap:wrap}
  .command-menu{width:min(300px,calc(100vw - 72px));right:0}
}
/* ===== page lead ===== */
.page-lead{
  margin:0;padding:58px 0 30px;background:linear-gradient(180deg,var(--primary-mist),var(--bg));
}
.lead-row{display:flex;gap:40px;align-items:flex-end}
.lead-info{flex:1 1 auto}
.lead-chip{margin-bottom:18px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:15px}
.breadcrumb a{color:var(--muted);transition:color .2s}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span{color:#8C9BB0}
.page-h1{
  font-size:clamp(32px,5vw,48px);line-height:1.16;
  color:var(--text);font-weight:700;letter-spacing:-.01em;margin-bottom:14px;
}
.page-h1 .text-primary{color:var(--primary)}
.lead-desc{max-width:760px;color:var(--muted);line-height:1.85;font-weight:400}
.quick-actions{margin-top:24px;display:flex;flex-wrap:wrap;gap:12px}
.lead-visual{
  flex:0 0 auto;text-align:center;background:rgba(255,255,255,.85);
  border:1px solid #DCE9F4;border-radius:20px;padding:22px 24px 16px;min-width:180px;
  box-shadow:var(--shadow);
}
.progress-ring{position:relative;width:116px;height:116px;margin:0 auto 10px}
.progress-ring svg{transform:rotate(-90deg);width:116px;height:116px}
.ring-bg{fill:none;stroke:#E1EBF4;stroke-width:8}
.ring-bar{fill:none;stroke:var(--primary);stroke-width:8;stroke-linecap:round;stroke-dasharray:314;stroke-dashoffset:63}
.ring-text{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;line-height:1.1}
.ring-text strong{font-size:32px;font-weight:700;color:var(--text)}
.ring-text span{font-size:12px;color:var(--muted)}
.lead-visual p{margin-top:10px;font-size:13px;color:var(--muted)}
@media (max-width:900px){
  .lead-row{flex-direction:column;align-items:flex-start}
  .lead-visual{display:flex;align-items:center;gap:18px;padding:16px 20px}
  .lead-visual p{margin:4px 0 0;text-align:left}
}
/* ===== timeline section ===== */
.timeline-outer{padding:78px 0 40px;position:relative}
.timeline-outer::before{
  content:"";position:absolute;top:0;bottom:0;right:calc(50% - 590px);width:1px;
  background:linear-gradient(180deg,transparent,var(--line) 12%,var(--line) 88%,transparent);
  display:none;
}
.timeline-steps{position:relative;max-width:1100px;margin:0 auto;padding:16px 0 4px}
.timeline-steps::before{
  content:"";position:absolute;left:50%;top:30px;bottom:40px;width:1px;
  background:linear-gradient(180deg,var(--line) 0%,#B9CDE2 100%);transform:translateX(-50%);
}
.tl-item{
  width:50%;position:relative;padding:20px 48px 54px 0;
}
.tl-item:nth-child(even){margin-left:50%;padding:20px 0 54px 48px}
.tl-node{
  position:absolute;z-index:3;width:46px;height:46px;border-radius:50%;
  background:#fff;border:1px solid #C8DCEE;box-shadow:0 0 0 7px rgba(231,241,250,.8);
  right:-23px;top:58px;display:flex;align-items:center;justify-content:center;
  color:var(--primary);font-size:18px;font-weight:700;
}
.tl-item:nth-child(even) .tl-node{right:auto;left:-23px}
.tl-card{
  background:var(--surface);border:1px solid rgba(226,233,242,.7);border-radius:18px;
  padding:28px;box-shadow:var(--shadow);position:relative;transition:all .25s ease;
  min-height:175px;
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#CCDEEF}
.tl-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:9px}
.tl-step{
  display:inline-flex;align-items:center;gap:6px;background:var(--primary-soft);
  color:var(--primary-deep);font-size:12px;font-weight:600;letter-spacing:.05em;
  padding:5px 10px;border-radius:100px;
}
.tl-step .dot{width:5px;height:5px;border-radius:50%;background:var(--primary)}
.tl-card h3{font-size:22px;line-height:1.4;margin:5px 0 8px;color:var(--text)}
.tl-card p{color:var(--muted);font-weight:400;line-height:1.85;margin-bottom:14px}
.tl-card-text{max-width:1300px}
.tl-img{overflow:hidden;border-radius:12px;margin-bottom:16px;position:relative}
.tl-img img{width:100%;height:210px;object-fit:cover;transition:transform .4s ease}
.tl-card:hover .tl-img img{transform:scale(1.025)}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto}
.tl-tags .tag{background:#fff;border-color:var(--line);color:var(--muted)}
@media (max-width:900px){
  .timeline-steps::before{left:30px;transform:none}
  .tl-item,.tl-item:nth-child(even){width:100%;margin-left:0;padding:30px 0 44px 72px}
  .tl-node,.tl-item:nth-child(even) .tl-node{left:9px;right:auto;top:37px;width:42px;height:42px;font-size:16px}
}
@media (max-width:520px){
  .timeline-outer{padding:46px 0 18px}
  .timeline-steps::before{left:20px}
  .tl-item,.tl-item:nth-child(even){padding:26px 0 34px 54px}
  .tl-node,.tl-item:nth-child(even) .tl-node{left:0;width:40px;height:40px}
  .tl-card{padding:20px 18px;border-radius:16px}
  .tl-img img{height:165px}
  .tl-card h3{font-size:18px}
  .lead-desc{font-size:15px}
}
/* ===== quote band ===== */
.quote-band{
  position:relative;margin:95px 0;padding:78px 0;background:linear-gradient(180deg,var(--primary-mist),var(--bg));
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.quote-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,255,255,.94),rgba(244,249,252,.82))}
@media (min-width:768px){.quote-overlay{background:linear-gradient(90deg,rgba(255,255,255,.93) 0%,rgba(247,250,253,.88) 55%,rgba(247,250,253,.55) 100%)}}
.quote-content{position:relative;max-width:860px;margin:0 auto;padding:0 24px;text-align:center}
.quote-content blockquote{margin:0}
.quote-content .quote-chip{color:var(--primary);font-size:14px;font-weight:600;letter-spacing:.08em;display:block;margin-bottom:14px}
.quote-content blockquote p{font-size:clamp(21px,3vw,31px);line-height:1.75;font-weight:600;color:var(--text)}
.quote-content .quote-foot{color:var(--muted);margin-top:22px;font-size:15px;font-weight:400}
@media (max-width:768px){.quote-band{margin:64px -18px;padding:58px 4px}}
/* ===== tips cards ===== */
.tips-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;margin:34px 0 10px}
.tip-card{
  background:var(--surface);border:1px solid var(--line);border-radius:18px;
  padding:28px 30px;position:relative;box-shadow:var(--shadow);
  transition:all .23s ease;display:flex;gap:18px;align-items:flex-start;
}
.tip-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.tip-index{flex:0 0 44px;height:44px;border-radius:12px;background:var(--primary-soft);color:var(--primary);display:inline-flex;align-items:center;justify-content:center;font-weight:700}
.tip-content h3{font-size:18px;margin-bottom:6px}
.tip-content p{color:var(--muted);font-weight:400;font-size:15px}
@media (max-width:820px){.tips-grid{grid-template-columns:1fr}}
/* ===== column nav ===== */
.column-bridge{
  margin:28px 0 16px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--surface);border-radius:20px;padding:27px;
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;box-shadow:var(--shadow);
}
.bridge-heading{display:flex;flex-direction:column;gap:5px;margin-right:auto}
.bridge-heading strong{font-size:17px}
.bridge-heading span{color:var(--muted);font-size:14px;font-weight:400}
.bridge-links{display:flex;gap:10px;flex-wrap:wrap}
/* ===== FAQ ===== */
.faq-outer{padding:22px 0 18px}
.faq-list{max-width:880px;margin:34px auto 0}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:16px;margin-bottom:14px;overflow:hidden;transition:border-color .25s,box-shadow .25s}
.faq-item:hover{border-color:#C3D9EC;box-shadow:var(--shadow)}
.faq-item.open{border-color:#C8DCEE;box-shadow:var(--shadow)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:28px;
  text-align:left;padding:18px 26px;min-height:56px;background:transparent;
  border:0;cursor:pointer;font-size:16px;font-weight:600;color:var(--text);
  transition:all .2s ease;
}
.faq-q:focus-visible{outline:3px solid rgba(46,111,181,.25);outline-offset:-3px;border-radius:12px}
.faq-icon{width:26px;height:26px;border-radius:50%;flex-shrink:0;background:var(--primary-mist);color:var(--primary);display:inline-flex;align-items:center;justify-content:center;transition:all .25s ease;font-size:18px;font-weight:400}
.faq-item.open .faq-icon{background:var(--primary);color:#fff;transform:rotate(45deg)}
.faq-a{display:none;padding:0 28px 6px;color:var(--muted);font-weight:400;font-size:15px;line-height:1.85;max-width:800px}
.faq-item.open .faq-a{display:block;padding-bottom:22px}
@media (max-width:520px){
  .faq-q{padding:16px 18px;font-size:15px;gap:18px}
  .faq-a{padding:0 20px}
}
/* ===== contact block ===== */
.contact-outer{padding-top:30px}
.contact-shell{
  background:var(--surface);border:1px solid var(--line);border-radius:22px;
  box-shadow:var(--shadow);display:grid;grid-template-columns:1fr 1.1fr;
  overflow:hidden;margin-top:16px;
}
.contact-info{
  background:linear-gradient(135deg,#EBF3FB,#F7FBFF);
  padding:40px 38px;display:flex;flex-direction:column;
}
.contact-info .eyebrow{margin-bottom:10px}
.contact-info h2{font-size:clamp(23px,2.8vw,30px);line-height:1.45;margin-bottom:19px}
.contact-info p{color:var(--muted);font-weight:400;line-height:1.85;margin-bottom:24px}
.promise-list{display:flex;flex-direction:column;gap:14px;margin-bottom:20px}
.promise-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--text)}
.promise-list svg{width:20px;height:20px;color:var(--green);flex-shrink:0;margin-top:2px}
.privacy-note{font-size:13px;color:var(--muted);display:flex;flex-direction:column;gap:5px;margin-top:auto;line-height:1.7}
.privacy-note .privacy-line{display:flex;gap:7px;align-items:flex-start;color:var(--muted)}
.privacy-note .privacy-line svg{width:15px;height:15px;flex-shrink:0;margin-top:2px}
.privacy-note a{color:var(--primary)}
.contact-form{
  background:var(--surface);padding:38px 40px;
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.form-field label{font-size:14px;font-weight:500;color:#34455C}
.form-field input,.form-field select,.form-field textarea{
  width:100%;height:46px;padding:0 14px;
  border:1px solid #D6E1EB;border-radius:8px;background:#FAFBFD;color:var(--text);
  font-size:15px;font-weight:400;outline:none;transition:all .18s ease;
  appearance:none;-webkit-appearance:none;
}
.form-field textarea{height:118px;padding:12px 14px;resize:vertical;line-height:1.7}
.form-field select{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2365758B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;padding-right:38px;cursor:pointer;
}
.form-field input:hover,.form-field select:hover,.form-field textarea:hover{border-color:#B9CDE2;background:#fff}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(46,111,181,.09);
}
.form-field textarea::placeholder,.form-field input::placeholder{color:#9DAAB9}
.form-field.is-full{grid-column:1 / -1}
.form-submit-row{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:8px}
.form-submit-row .btn{min-width:150px}
.form-feedback{width:100%;border-radius:10px;font-size:15px;padding:10px 13px;display:none}
.form-feedback.success{display:block;background:var(--green-soft);color:var(--green);border:1px solid #C6E3DD}
.form-feedback.error{display:block;background:#FBEEEC;color:#B4524A;border:1px solid #EACFC9}
@media (max-width:900px){
  .contact-shell{grid-template-columns:1fr}
  .contact-info{padding:32px 28px}
  .contact-form{padding:28px 26px}
  .form-row{grid-template-columns:1fr}
}
/* ===== footer ===== */
.site-footer{background:var(--surface);border-top:1px solid var(--line);margin-top:120px;padding-top:70px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px}
.footer-logo{display:inline-flex;align-items:center;gap:9px;margin-bottom:22px}
.footer-logo .brand-mark{background:var(--primary-soft);color:var(--primary);width:36px;height:36px}
.footer-logo .brand-name{font-size:17px}
.footer-logo .brand-sub{font-size:11px;letter-spacing:.15em;color:var(--muted)}
.footer-brand p{color:var(--muted);font-size:15px;font-weight:400;line-height:1.85;max-width:360px}
.footer-col h3{font-size:16px;margin-bottom:18px;color:var(--text);font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:3px}
.footer-col ul a{display:inline-flex;align-items:center;padding:5px 0;color:var(--muted);font-weight:400;font-size:15px;transition:color .2s,transform .2s}
.footer-col ul a:hover{color:var(--primary);transform:translateX(2px)}
.footer-contact-row{display:flex;align-items:flex-start;gap:9px;color:var(--muted);font-size:14px;line-height:1.6;margin-bottom:13px}
.footer-contact-row svg{width:17px;height:17px;flex-shrink:0;color:var(--primary);margin-top:2px}
.footer-bottom{border-top:1px solid var(--line);margin-top:54px;padding:22px 0 28px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;font-size:14px;color:var(--muted)}
.footer-links{display:inline-flex;align-items:center;gap:10px;flex-wrap:wrap}
.footer-links a{color:var(--muted);transition:color .2s}
.footer-links a:hover{color:var(--primary)}
.footer-bottom .sep{opacity:.6}
@media (max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:660px){
  .site-footer{margin-top:80px;padding-top:48px}
  .footer-grid{grid-template-columns:1fr}
  .footer-brand p{max-width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
/* ===== bottom nav strip ===== */
.bottom-nav{background:#EDF3F9;border-radius:20px;padding:32px 30px;margin-top:44px;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center}
.bottom-nav h4{font-size:17px;font-weight:600;margin-bottom:8px}
.bottom-nav p{color:var(--muted);font-size:14px;margin:0}
.bottom-links{display:flex;gap:12px;flex-wrap:wrap}