/* roulang page: index */
:root{
  --blue:#146B9C;
  --dark-blue:#0D4B73;
  --cyan:#2BC0D4;
  --mint:#3DD9B6;
  --page:#F4F7FA;
  --white:#FFFFFF;
  --ink:#102433;
  --muted:#59748B;
  --line:#DDE8F0;
  --radius:14px;
  --radius-lg:20px;
  --shadow:0 12px 30px rgba(19,61,94,.08);
  --shadow-lg:0 18px 40px rgba(19,61,94,.14);
  --space:120px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",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);background:var(--page);color:var(--ink);line-height:1.8;font-size:16px;-webkit-font-smoothing:antialiased}
body.no-scroll{overflow:hidden}
a{color:var(--blue);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--dark-blue)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
img{max-width:100%;display:block;border:0}
ul,ol{list-style:none}
button{font-family:inherit;border:none;background:none;cursor:pointer}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--ink);width:100%}
.container{max-width:1200px;margin:0 auto;padding:0 32px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:10px;font-weight:600;font-size:15px;line-height:1;white-space:nowrap;transition:all .2s ease;border:1px solid transparent}
.btn-primary{background:linear-gradient(135deg,var(--blue),var(--dark-blue));color:#fff;box-shadow:0 8px 18px rgba(20,107,156,.2)}
.btn-primary:hover{background:linear-gradient(135deg,#117aa9,#0a3e61);color:#fff;box-shadow:var(--shadow-lg);transform:translateY(-2px);border-color:var(--cyan)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:0 4px 14px rgba(19,61,94,.04)}
.btn-ghost:hover{border-color:var(--blue);color:var(--blue);background:#F7FBFF;transform:translateY(-2px)}
.btn-neon{background:linear-gradient(135deg,var(--cyan),var(--mint));color:#08141f;border:none;font-weight:700;box-shadow:0 0 18px rgba(43,192,212,.28)}
.btn-neon:hover{color:#08141f;box-shadow:0 0 28px rgba(43,192,212,.52);background:linear-gradient(135deg,var(--blue),#7ee0d5);transform:translateY(-2px)}
.section-kicker{display:inline-flex;align-items:center;color:var(--blue);font-weight:700;font-size:13px;letter-spacing:.12em;text-transform:uppercase;gap:8px}
.section-kicker::before{content:"";width:20px;height:2px;background:var(--cyan);border-radius:99px}
section{scroll-margin-top:90px}

/* ===== Header ===== */
.site-header{position:sticky;top:0;z-index:100;background:#091220;color:#fff;box-shadow:0 10px 30px rgba(4,10,20,.28)}
.site-header::after{content:"";display:block;height:2px;background:linear-gradient(90deg,var(--blue),var(--cyan),var(--mint))}
.nav-wrap{max-width:1240px;margin:0 auto;padding:0 22px;display:flex;align-items:center;gap:20px}
.brand{display:flex;align-items:center;min-width:0;flex-shrink:0;padding:12px 0}
.brand-link{display:flex;flex-direction:column;color:#fff;line-height:1.3}
.brand-link:hover{color:#fff}
.brand-main{font-size:21px;font-weight:800;letter-spacing:.02em;background:linear-gradient(120deg,#70d7f5,#fff 60%);-webkit-background-clip:text;background-clip:text;color:transparent}
.brand-sub{font-size:10px;letter-spacing:.24em;color:#7b9ab1;font-weight:600;margin-top:2px;text-transform:uppercase}
.nav-list{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{position:relative;display:block;padding:14px 14px;color:#c4d7e6;font-weight:600;font-size:15px;transition:color .2s ease}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:6px;height:2px;border-radius:99px;background:linear-gradient(90deg,var(--cyan),var(--mint));opacity:0;transform:scaleX(.5);transition:all .2s ease;box-shadow:0 0 12px rgba(43,192,212,.7)}
.nav-link:hover{color:#fff}
.nav-link.active{color:#bff6e9;text-shadow:0 0 14px rgba(43,192,212,.8)}
.nav-link.active::after{opacity:1;transform:scaleX(1)}
.nav-cta{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.04);color:#fff;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-toggle span{width:18px;height:2px;background:#9fd4ff;border-radius:99px;transition:all .3s ease}
.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-open .nav-toggle span:nth-child(2){opacity:0}
.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== Hero ===== */
.hero{position:relative;background:linear-gradient(104deg,rgba(244,247,250,.96) 0%,rgba(255,255,255,.92) 50%,rgba(241,248,251,.86) 100%),url('/assets/images/backpic/back-1.webp') center/cover no-repeat;padding:112px 0 92px;overflow:hidden}
.hero-rings{position:absolute;top:-80px;right:-20px;width:520px;height:520px;pointer-events:none;opacity:.55}
.hero-rings::before{content:"";position:absolute;inset:70px;border:2px solid rgba(20,107,156,.24);border-radius:50%}
.hero-rings::after{content:"";position:absolute;inset:130px;border:2px solid rgba(43,192,212,.5);border-radius:50%;box-shadow:0 0 0 46px rgba(43,192,212,.05)}
.hero-inner{position:relative;z-index:2;max-width:900px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border:1px solid var(--line);background:#fff;border-radius:999px;color:var(--blue);font-size:13px;font-weight:700;box-shadow:var(--shadow)}
.hero-badge-dot{width:7px;height:7px;border-radius:50%;background:linear-gradient(135deg,var(--cyan),var(--mint));box-shadow:0 0 9px var(--cyan)}
.hero h1{font-size:clamp(38px,5vw,64px);line-height:1.22;font-weight:800;letter-spacing:.01em;margin:24px 0 22px;color:var(--ink)}
.hero h1 strong{color:var(--blue)}
.hero-desc{font-size:18px;line-height:1.9;color:var(--muted);max-width:760px;margin-bottom:34px}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px}
.hero-note{margin-top:18px;font-size:13px;color:#849BAE}
.hero-panel{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}

/* ===== Stats ===== */
.stats-section{position:relative;z-index:5;padding:0;background:#fff;border-bottom:1px solid var(--line)}
.stats-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:0;padding:0}
.stat-item{position:relative;padding:34px 34px 30px;text-align:center;transition:background .3s ease}
.stat-item + .stat-item{border-left:1px solid var(--line)}
.stat-item:hover{background:#FBFDFF}
.stat-item::after{content:"";position:absolute;left:34px;right:34px;bottom:-1px;height:3px;border-radius:999px;background:linear-gradient(90deg,var(--cyan),var(--mint));opacity:0;transition:opacity .2s ease}
.stat-item:hover::after{opacity:1}
.stat-icon{display:flex;justify-content:center;align-items:center;width:40px;height:40px;margin:0 auto 12px;background:rgba(43,192,212,.08);border-radius:12px}
.stat-value{font-size:clamp(40px,5vw,58px);font-weight:800;line-height:1;color:var(--blue);font-feature-settings:"tnum"}
.stat-label{font-size:14px;color:var(--muted);margin-top:10px;letter-spacing:.03em}
.stat-tip{font-size:11px;color:#A9BDCC;margin-top:4px}

/* ===== Section base ===== */
.section{padding-top:96px;padding-bottom:96px}
.section-head{max-width:760px;margin:0 auto 46px;text-align:center}
.section-head h2,.section-title{font-size:clamp(28px,3vw,40px);font-weight:800;line-height:1.35;color:var(--ink);letter-spacing:-.01em}
.section-head p{color:var(--muted);font-size:16px;margin-top:16px;line-height:1.9}
.section-foot{text-align:center;margin-top:30px}

/* ===== Services matrix ===== */
.services-section{background:#fff;border-bottom:1px solid var(--line)}
.services-layout{display:grid;grid-template-columns:minmax(300px,380px) 1fr;gap:44px;align-items:start}
.service-aside{position:sticky;top:110px;padding:40px 34px;border-radius:var(--radius-lg);background:linear-gradient(155deg,#F7FBFF,#EAF3F9);border:1px solid #D8E7F1;overflow:hidden}
.service-aside h2{font-size:26px;line-height:1.45;margin:16px 0 14px;font-weight:800}
.service-aside p{color:var(--muted);font-size:15px}
.service-aside .btn{margin-top:22px}
.service-aside-points{margin-top:24px;display:grid;gap:10px}
.service-aside-points li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink)}
.service-aside-points li::before{content:"";width:7px;height:7px;background:var(--mint);border-radius:50%;box-shadow:0 0 0 4px rgba(61,217,182,.14)}
.service-cards{display:grid;gap:20px}
.matrix-card{position:relative;display:flex;border:1px solid var(--line);border-radius:var(--radius-lg);background:#fff;overflow:hidden;box-shadow:var(--shadow);transition:all .28s ease}
.matrix-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-5px);border-color:#bcd8eb}
.matrix-card-media{position:relative;width:38%;min-height:220px;overflow:hidden;background:#DCEAF3}
.matrix-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.matrix-card:hover .matrix-card-media img{transform:scale(1.05)}
.matrix-card-body{padding:32px 30px;display:flex;flex-direction:column;justify-content:center;flex:1}
.matrix-tag{display:inline-flex;align-self:flex-start;align-items:center;gap:6px;padding:5px 12px;background:rgba(20,107,156,.08);border-radius:999px;color:var(--blue);font-size:13px;font-weight:700}
.matrix-card h3{font-size:22px;font-weight:800;margin:14px 0 10px;line-height:1.4}
.matrix-card p{color:var(--muted);font-size:15px;line-height:1.8}
.matrix-link{display:inline-flex;align-items:center;gap:7px;margin-top:18px;font-weight:700;font-size:15px;color:var(--blue)}
.matrix-link i{width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;border:1px solid rgba(20,107,156,.3);border-radius:50%;font-style:normal;font-size:15px;transition:all .2s ease}
.matrix-card:hover .matrix-link i{background:var(--blue);color:#fff;border-color:var(--blue);transform:translateX(4px)}
.matrix-card-pattern{width:8%;min-width:80px;background:repeating-linear-gradient(-45deg,#F2F8FC,#F2F8FC 9px,#E8F1F7 9px,#E8F1F7 18px);display:flex;align-items:center;justify-content:center}
.arrow-disc{width:34px;height:34px;background:#fff;border:1px solid var(--line);border-radius:50%;display:flex;align-items:center;justify-content:center;font-style:normal;color:var(--blue);font-weight:700;box-shadow:var(--shadow)}

/* ===== Compare ===== */
.compare-section{background:var(--page)}
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.compare-panel{border-radius:var(--radius-lg);padding:38px 34px;overflow:hidden;position:relative}
.compare-panel-before{background:#fff;border:1px solid var(--line);color:var(--ink);box-shadow:var(--shadow)}
.compare-panel-before::after{content:"";position:absolute;left:0;right:0;bottom:0;height:4px;background:#9DB0BE}
.compare-panel-after{background:linear-gradient(160deg,var(--dark-blue),#0A3152);color:#fff;box-shadow:0 18px 36px rgba(7,34,58,.28)}
.compare-label{display:inline-block;padding:5px 14px;border-radius:999px;font-size:13px;font-weight:700;letter-spacing:.04em}
.compare-label-before{background:#EDF1F5;color:#687A88}
.compare-label-after{background:linear-gradient(100deg,var(--cyan),var(--mint));color:#09212e}
.compare-panel h3{font-size:24px;font-weight:800;margin:18px 0 20px}
.compare-list{display:grid;gap:16px}
.compare-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px}
.compare-list li::before{content:"";flex:0 0 8px;width:8px;height:8px;border-radius:2px;margin-top:9px;transition:background .3s}
.compare-panel-before .compare-list li::before{background:#AEBFCC}
.compare-panel-after .compare-list li::before{background:var(--mint);box-shadow:0 0 9px var(--mint)}
.compare-note{margin-top:26px;font-size:13px;opacity:.74;border-top:1px dashed rgba(255,255,255,.22);padding-top:14px}
.compare-panel-before .compare-note{color:var(--muted);border-top-color:var(--line)}

/* ===== News / CMS ===== */
.news-section{background:#fff;border-bottom:1px solid var(--line)}
.news-empty{border:1px dashed var(--line);border-radius:var(--radius-lg);background:#FBFCFE;text-align:center;padding:48px 20px;color:var(--muted)}
.news-empty-icon{width:44px;height:44px;border-radius:50%;background:#EAF3F9;display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.news-list{display:grid;gap:20px}
.news-lead{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-lg);background:#fff;box-shadow:var(--shadow);transition:box-shadow .28s ease}
.news-lead:hover{box-shadow:var(--shadow-lg)}
.news-lead-body{padding:34px;display:flex;flex-direction:column;justify-content:center}
.news-lead-media{position:relative;min-height:250px;background:linear-gradient(140deg,#D6EAF5,#EEF8FC),url('/assets/images/coverpic/cover-3.webp') center/cover no-repeat}
.news-lead-media::before{content:"";position:absolute;inset:0;background:linear-gradient(200deg,rgba(20,107,156,.04),rgba(8,33,56,.05))}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news-card{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--radius-lg);background:#fff;box-shadow:0 8px 20px rgba(19,61,94,.05);padding:24px 22px;transition:all .25s ease}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--cyan)}
.news-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.news-cat{font-size:13px;color:var(--blue);background:rgba(20,107,156,.08);padding:3px 10px;border-radius:999px;font-weight:700}
.news-time{font-size:13px;color:#9AAEBC;margin-left:auto}
.news-card h3{font-size:17px;line-height:1.55;font-weight:800;margin-bottom:10px}
.news-card h3 a{color:var(--ink)}
.news-card h3 a:hover{color:var(--blue)}
.news-card p{color:var(--muted);font-size:14px;line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:12px}
.news-more{margin-top:auto;font-size:14px;font-weight:700;color:var(--blue);display:inline-flex;align-items:center;gap:5px}
.news-more i{font-style:normal;font-size:16px}
.news-section-foot{text-align:center;margin-top:34px}

/* ===== FAQ ===== */
.faq-section{background:var(--page)}
.faq-wrap{max-width:940px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);margin-bottom:12px;box-shadow:0 6px 16px rgba(19,61,94,.04);transition:box-shadow .25s ease;overflow:hidden}
.faq-item:hover{box-shadow:var(--shadow)}
.faq-item[open]{box-shadow:var(--shadow)}
.faq-item summary{list-style:none;display:flex;align-items:center;gap:14px;padding:20px 22px;cursor:pointer;font-size:17px;font-weight:800}
.faq-item summary::-webkit-details-marker{display:none}
.faq-num{flex:0 0 32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--dark-blue));color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700}
.faq-label{flex:1;line-height:1.5}
.faq-icon{flex:0 0 24px;width:24px;height:24px;border-radius:50%;border:2px solid #BCD4E4;color:var(--blue);display:flex;align-items:center;justify-content:center;font-style:normal;font-size:15px;line-height:1;transition:all .3s ease}
.faq-item[open] .faq-icon{transform:rotate(180deg);background:var(--cyan);border-color:var(--cyan);color:#06121a}
.faq-answer{padding:0 22px 24px 68px;font-size:15px;color:var(--muted);line-height:1.95;border-top:1px solid #F0F5F8;margin-top:-4px}
.faq-answer a{font-weight:700}

/* ===== Contact ===== */
.contact-section{position:relative;background:var(--dark-blue) url('/assets/images/backpic/back-2.webp') center/cover no-repeat;padding-top:110px;padding-bottom:110px;border-top:2px solid #115379}
.contact-section::before{content:"";position:absolute;inset:0;background:linear-gradient(150deg,rgba(9,30,48,.95),rgba(13,71,113,.9))}
.contact-inner{position:relative;z-index:2;display:grid;grid-template-columns:5fr 7fr;gap:34px;align-items:center}
.contact-copy{color:#DDE9F2;padding-right:18px}
.contact-copy h2{font-size:clamp(28px,3.2vw,42px);font-weight:800;color:#fff;line-height:1.4;margin-bottom:16px}
.contact-copy p{margin-bottom:12px;color:#C7DBEB;font-size:16px}
.contact-points{margin-top:26px;display:grid;grid-template-columns:1fr 1fr;gap:12px 18px}
.contact-points li{display:flex;gap:8px;font-size:14px;color:#D1E5F3}
.contact-points li::before{content:"";flex:0 0 7px;height:7px;margin-top:10px;background:var(--mint);border-radius:50%;box-shadow:0 0 8px rgba(61,217,182,.8)}
.contact-form-card{background:#fff;border-radius:var(--radius-lg);padding:38px;box-shadow:0 26px 60px rgba(3,18,30,.34)}
.contact-form-card h3{font-size:24px;font-weight:800;margin-bottom:6px}
.form-note-p{color:var(--muted);font-size:14px;margin-bottom:20px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-col{display:flex;flex-direction:column;gap:14px}
.form-group label{font-size:14px;font-weight:700;margin-bottom:6px;display:block}
.form-control{background:#F8FAFC;border:1px solid #E3ECF2;border-radius:10px;height:46px;padding:0 14px;transition:border-color .2s,box-shadow .2s,background .2s}
textarea.form-control{height:auto;min-height:110px;padding-top:12px;resize:vertical}
.form-control:focus{border-color:var(--blue);background:#fff;box-shadow:0 0 0 3px rgba(20,107,156,.12)}
.form-select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23146B9C' d='M10.6.3 6 5 1.4.3 0 1.8l6 6 6-6z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center}
.submit-btn{height:48px;padding:0 30px;border-radius:10px;font-weight:700}
.form-success{display:none;margin-top:18px;background:#F0FBF6;border:1px solid var(--mint);color:#1f765d;border-radius:12px;padding:15px 18px;font-size:14px}
.form-success em{font-style:normal;font-weight:800;font-size:16px}
.contact-mini{margin-top:16px;font-size:13px;color:#9AAEBC}

/* ===== Footer ===== */
.site-footer{background:#08111E;color:#AFC4D6;border-top:2px solid rgba(43,192,212,.45)}
.footer-cta-banner{background:linear-gradient(120deg,#0d3b5f,#116a9c);border-radius:var(--radius-lg);margin-top:-54px;position:relative;z-index:5;padding:28px 34px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;box-shadow:0 18px 40px rgba(4,15,28,.25)}
.footer-cta-banner strong{color:#fff;font-size:22px;font-weight:800}
.footer-cta-banner p{color:#D6EBF7;font-size:14px}
.footer-cta-banner .btn{background:#fff;color:var(--dark-blue)}
.footer-cta-banner .btn:hover{box-shadow:0 0 20px rgba(255,255,255,.3)}
.footer-main{padding:64px 0 20px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.3fr;gap:32px}
.footer-brand .footer-logo{font-size:22px;font-weight:800;color:#fff;letter-spacing:.03em}
.footer-brand .footer-abbr{font-size:11px;letter-spacing:.22em;color:#5E7C91;font-weight:700;text-transform:uppercase}
.footer-brand p{margin-top:10px;color:#89A2B6;font-size:14px;line-height:1.85;max-width:320px}
footer h4{color:#DDEBF6;font-size:16px;font-weight:800;margin-bottom:16px;position:relative;padding-bottom:8px}
footer h4::after{content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;border-radius:2px;background:var(--cyan)}
.footer-links{display:grid;gap:8px}
.footer-links a{color:#89A2B6;font-size:14px;transition:all .2s}
.footer-links a:hover{color:#fff;padding-left:4px;text-shadow:0 0 16px rgba(43,192,212,.6)}
.footer-contact-list li{display:flex;gap:8px;font-size:14px;color:#89A2B6;margin-bottom:9px}
.footer-contact-list li::first-child{color:#fff;font-weight:700}
.footer-bottom{border-top:1px solid rgba(255,255,255,.06);margin-top:40px;padding:18px 0}
.footer-bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:#6D89A0}

/* ===== Animations ===== */
@keyframes fadeUp{from{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}
.hero-inner,.stat-item,.matrix-card,.compare-panel,.news-card,.contact-form-card{animation:fadeUp .5s ease both}

/* ===== Responsive ===== */
@media(min-width:768px) and (max-width:1023px){
  .section{padding-top:72px;padding-bottom:72px}
  .container{padding:0 28px}
  .stats-inner{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(3){border-left:none}
  .stat-item:nth-child(n+3){border-top:1px solid var(--line)}
  .services-layout{grid-template-columns:1fr;gap:28px}
  .service-aside{position:static}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .news-lead{grid-template-columns:1fr}
  .contact-inner{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}

@media(max-width:767px){
  .container{padding:0 18px}
  .section{padding-top:56px;padding-bottom:56px}
  .section-head h2{font-size:26px}
  .site-header{padding:0}
  .nav-wrap{min-height:64px;position:relative}
  .brand{padding:8px 0}
  .brand-main{font-size:18px}
  .brand-sub{font-size:9px}
  .navbar-main{position:fixed;inset:64px 0 auto 0;height:calc(100vh - 64px);background:#091220;z-index:99;transform:translateX(100%);transition:transform .34s ease;padding:18px 22px 30px;overflow-y:auto;border-top:1px solid rgba(255,255,255,.08)}
  .nav-open .navbar-main{transform:translateX(0)}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-list .nav-link{display:block;padding:16px 10px;border-bottom:1px solid rgba(255,255,255,.05);font-size:16px}
  .nav-link::after{left:10px;right:auto;width:38px;bottom:8px}
  .nav-cta{margin:16px auto 0;width:100%}
  .nav-cta .btn{width:100%;height:48px}
  .nav-toggle{display:flex;margin-left:auto;font-size:10px}
  .hero{padding:76px 0 56px}
  .hero-rings{top:-30px;right:-200px;width:430px;height:430px}
  .hero h1{font-size:clamp(32px,10vw,43px);margin-top:18px}
  .hero-actions .btn{width:100%}
  .stats-section{border-bottom:1px solid var(--line)}
  .stats-inner{grid-template-columns:1fr 1fr}
  .stat-item{padding:24px 14px}
  .stat-item:nth-child(3){border-left:none}
  .stat-item:nth-child(n+3){border-top:1px solid var(--line)}
  .stat-item:first-child,.stat-item:nth-child(2){border-bottom:1px solid var(--line)}
  .stat-icon{width:34px;height:34px;margin-bottom:8px}
  .stat-value{font-size:38px}
  .services-layout{display:flex;flex-direction:column}
  .service-aside{position:relative;width:100%;padding:28px 22px}
  .matrix-card{flex-direction:column}
  .matrix-card-media{width:100%;min-height:140px;max-height:200px}
  .matrix-card-media.small-media{min-height:120px}
  .matrix-card-body{padding:20px}
  .matrix-card-pattern{display:none}
  .compare-grid{grid-template-columns:1fr}
  .compare-panel{padding:28px 20px}
  .news-list{gap:14px}
  .news-grid{grid-template-columns:1fr}
  .news-lead{grid-template-columns:1fr;display:block}
  .news-lead-body{padding:22px}
  .news-lead-media{min-height:120px;max-height:160px;background-size:cover}
  .news-section-head{text-align:center}
  .faq-wrap{max-width:100%}
  .faq-item summary{font-size:15px;padding:16px;gap:10px}
  .faq-num{display:none}
  .faq-answer{padding:0 16px 20px 16px}
  .contact-inner{display:flex;flex-direction:column}
  .contact-copy{padding-right:0;text-align:left}
  .contact-points{grid-template-columns:1fr}
  .contact-form-card{padding:26px 20px}
  .form-grid{grid-template-columns:1fr}
  .footer-cta-banner{margin-top:-28px;padding:24px}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-top:44px}
  .footer-bottom-inner{flex-direction:column;text-align:center}
}
@media(max-width:420px){
  .stats-inner{grid-template-columns:1fr 1fr}
  .news-card{padding:18px}
  .btn{padding:0 18px}
}

/* roulang page: article */
:root {
  --primary: #146B9C;
  --primary-deep: #0D4B73;
  --primary-soft: #EAF3F9;
  --cyan: #2BC0D4;
  --teal: #3DD9B6;
  --nav-bg: #091220;
  --bg: #F4F7FA;
  --card: #FFFFFF;
  --ink: #102433;
  --muted: #59748B;
  --line: #DDE8F0;
  --line-deep: #C8D8E5;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow: 0 12px 30px rgba(19, 61, 94, 0.08);
  --shadow-down: 0 18px 40px rgba(19, 61, 94, 0.14);
  --space-section: 84px;
  --space-section-md: 60px;
  --font: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Segoe UI", sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body.no-scroll {
  overflow: hidden;
}
ul, ol, dl, dd, figure, blockquote, p, h1, h2, h3, h4 {
  margin: 0;
  padding: 0;
}
img {
  max-width: 100%;
  display: block;
  border-radius: var(--radius-md);
}
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: 100%;
  line-height: 1.5;
  color: inherit;
}
button {
  cursor: pointer;
  border: none;
  background: none;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
}
.site-main {
  min-height: 60vh;
}

/* dark neon header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  background: var(--nav-bg);
  color: #fff;
  border-bottom: 1px solid rgba(72, 110, 150, .35);
}
.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: linear-gradient(90deg, rgba(20,107,156,.15), #2BC0D4 45%, #3DD9B6 90%);
  pointer-events: none;
}
.nav-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 74px;
}
.brand {
  flex: 0 0 auto;
  padding: 8px 0;
}
.brand-link {
  display: inline-flex;
  flex-direction: column;
  line-height: 1.25;
  color: #fff;
  gap: 2px;
}
.brand-main {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: .06em;
}
.brand-sub {
  font-size: 10px;
  letter-spacing: .45em;
  color: #7196B2;
  text-indent: .45em;
}
.navbar-main {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  flex: 1;
}
.nav-list {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0;
}
.nav-list .nav-link {
  position: relative;
  display: block;
  padding: 24px 16px;
  color: #C3D3E2;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: .02em;
  transition: color .2s ease, text-shadow .2s ease;
}
.nav-list .nav-link::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 10px;
  height: 2px;
  border-radius: 4px;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(43,192,212,.7);
  opacity: 0;
  transform: scaleX(.4);
  transition: opacity .2s ease, transform .2s ease;
}
.nav-list .nav-link:hover,
.nav-list .nav-link:focus-visible {
  color: #fff;
  text-shadow: 0 0 12px rgba(43,192,212,.35);
}
.nav-list .nav-link.active {
  color: #fff;
  text-shadow: 0 0 16px rgba(43,192,212,.45);
}
.nav-list .nav-link.active::after,
.nav-list .nav-link:hover::after {
  opacity: 1;
  transform: scaleX(1);
}
.nav-cta {
  margin-left: 8px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-sm);
  padding: 11px 22px;
  font-size: 15px;
  font-weight: 600;
  transition: all .2s ease;
  min-height: 44px;
  border: 1px solid transparent;
  letter-spacing: .02em;
}
.btn:focus-visible,
.nav-toggle:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}
.btn-neon {
  background: linear-gradient(135deg, #22A7BC, #2BC0D4);
  color: #05202B;
  box-shadow: 0 8px 24px rgba(43,192,212,.22);
}
.btn-neon:hover {
  color: #05202B;
  background: linear-gradient(135deg, #2BC0D4, #3DD9B6);
  box-shadow: 0 10px 26px rgba(43,192,212,.42);
  transform: translateY(-1px);
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-deep);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(13,75,115,.18);
}
.btn-ghost {
  background: transparent;
  color: var(--primary);
  border-color: var(--line-deep);
}
.btn-ghost:hover {
  border-color: var(--primary);
  color: var(--primary-deep);
  background: #F9FCFE;
}

/* mobile nav control */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  border-radius: 10px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: #fff;
  transition: transform .25s ease, opacity .2s ease;
}
.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* breadcrumb */
.breadcrumb-wrap {
  background: #fff;
  border-bottom: 1px solid var(--line);
}
.crumb-list {
  list-style: none;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 14px 0;
  font-size: 13px;
  color: var(--muted);
}
.crumb-list li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.crumb-list li + li::before {
  content: "/";
  color: #AFC3D4;
  font-size: 12px;
  line-height: 1;
}
.crumb-list a {
  color: var(--primary);
}
.crumb-list a:hover {
  color: var(--primary-deep);
}
.crumb-list .current {
  color: var(--ink);
  font-weight: 500;
  max-width: 360px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* article main layout */
.article-layout {
  background: #fff;
}
.article-card {
  max-width: 860px;
  margin: 0 auto;
  padding: 54px 0 24px;
}
.article-eyebrow {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 14px 20px;
  margin-bottom: 22px;
}
.badge-primary,
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-soft);
  color: var(--primary-deep);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  padding: 5px 14px;
  line-height: 1.5;
}
.article-meta-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 20px;
  font-size: 14px;
  color: var(--muted);
}
.article-meta-list span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.article-card h1 {
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.25;
  color: var(--ink);
  margin-bottom: 18px;
  letter-spacing: -.01em;
  font-weight: 800;
  max-width: 780px;
}
.article-body {
  margin-top: 34px;
  font-size: 16px;
  line-height: 1.9;
  color: #1D3040;
}
.article-body > p {
  margin-bottom: 20px;
}
.article-body p {
  overflow-wrap: break-word;
}
.article-body h2 {
  font-size: 28px;
  color: var(--ink);
  line-height: 1.35;
  margin: 44px 0 16px;
  font-weight: 750;
}
.article-body h3 {
  font-size: 21px;
  color: var(--ink);
  line-height: 1.4;
  margin: 32px 0 14px;
  font-weight: 700;
}
.article-body h4 {
  font-size: 18px;
  color: var(--ink);
  margin: 26px 0 12px;
}
.article-body ul,
.article-body ol {
  margin: 18px 0 22px;
  padding-left: 26px;
}
.article-body ul li,
.article-body ol li {
  margin-bottom: 8px;
}
.article-body blockquote {
  margin: 26px 0;
  padding: 16px 20px;
  background: #F5FAFD;
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: #37536B;
}
.article-body pre {
  background: #0E1C2A;
  color: #D6E6F2;
  border-radius: var(--radius-md);
  padding: 18px 20px;
  overflow: auto;
  margin: 24px 0;
  font-size: 14px;
  line-height: 1.7;
}
.article-body code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}
.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  font-size: 15px;
}
.article-body th,
.article-body td {
  border: 1px solid var(--line);
  padding: 10px 14px;
  text-align: left;
  vertical-align: top;
}
.article-body th {
  background: #EDF4FA;
  color: var(--primary-deep);
  font-weight: 600;
}
.article-body figure {
  margin: 24px 0;
}
.article-body figure img {
  border-radius: var(--radius-md);
}
.article-body figcaption {
  color: var(--muted);
  font-size: 13px;
  text-align: center;
  margin-top: 8px;
}
.article-body a {
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-style: dotted;
}
.article-return {
  margin-top: 40px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

/* empty state */
.empty-panel {
  max-width: 720px;
  margin: 70px auto;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 56px 40px;
  text-align: center;
  border: 1px solid var(--line);
}
.empty-symbol {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  background: var(--primary-soft);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
}
.empty-symbol svg {
  width: 30px;
  height: 30px;
  stroke: var(--primary);
}
.empty-panel h1 {
  font-size: clamp(26px, 4vw, 34px);
  margin-bottom: 12px;
}
.empty-panel p {
  color: var(--muted);
  margin-bottom: 24px;
}

/* related entry matrix */
.soft-section {
  background: #fff;
  border-top: 1px solid var(--line);
}
.soft-section.alt {
  background: #F8FBFE;
  border-bottom: 1px solid var(--line);
}
.section-head {
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
  padding: 16px 0 28px;
}
.section-head h2,
.faq-block h2 {
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 800;
  color: var(--ink);
  line-height: 1.35;
  letter-spacing: -.01em;
}
.section-head p {
  color: var(--muted);
  margin-top: 10px;
  font-size: 16px;
}
.double-card-grid,
.pair-grid {
  max-width: 860px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}
.service-matrix-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 30px 28px 28px;
  transition: transform .25s ease, box-shadow .25s ease;
  position: relative;
  overflow: hidden;
}
.service-matrix-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-down);
}
.service-matrix-card .card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(20,107,156,.12), rgba(43,192,212,.14));
  color: var(--primary);
  margin-bottom: 18px;
}
.service-matrix-card h3 {
  color: var(--ink);
  font-size: 21px;
  font-weight: 700;
  margin-bottom: 10px;
}
.service-matrix-card p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.8;
}
.card-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--primary);
  margin-top: 18px;
  border-bottom: 1px solid transparent;
  transition: border-color .2s;
}
.card-more:hover {
  border-color: var(--primary);
}

/* faq */
.faq-block {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 0;
}
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 22px rgba(19,61,94,.04);
  overflow: hidden;
  transition: border-color .2s ease;
}
.faq-item.open {
  border-color: #BBDDEB;
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  text-align: left;
  width: 100%;
  padding: 18px 22px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.6;
}
.faq-icon {
  flex: 0 0 auto;
  position: relative;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--primary-soft);
  transition: background .2s;
}
.faq-icon::after {
  content: "";
  position: absolute;
  top: 12px;
  left: 8px;
  right: 8px;
  height: 2px;
  background: var(--primary);
  border-radius: 4px;
}
.faq-icon::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 12px;
  width: 2px;
  background: var(--primary);
  border-radius: 4px;
  transition: opacity .2s;
}
.faq-item.open .faq-icon::before {
  opacity: 0;
}
.faq-answer {
  display: none;
  padding: 0 22px 20px 26px;
  color: var(--muted);
  font-size: 15px;
  max-width: 92%;
}
.faq-item.open .faq-answer {
  display: block;
  animation: fadeDown .2s ease;
}
@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-4px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* contact form area */
.contact-zone {
  background: #fff;
  border-bottom: 1px solid var(--line);
  padding: 56px 0 64px;
}
.contact-panel {
  max-width: 860px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 40px;
  background: #F9FCFE;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.contact-info {
  padding: 42px 36px;
  background: linear-gradient(135deg, #0E2640 0%, #14456B 100%);
  color: #fff;
}
.contact-info h2 {
  font-size: 26px;
  color: #fff;
  font-weight: 700;
  margin-bottom: 14px;
  line-height: 1.4;
}
.contact-info p {
  font-size: 15px;
  line-height: 1.9;
  color: #C6D9EA;
  margin-bottom: 26px;
}
.contact-points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 20px;
}
.contact-points li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: #D9E8F4;
  font-size: 14px;
  line-height: 1.6;
}
.contact-points svg {
  flex: 0 0 auto;
  margin-top: 4px;
  stroke: #68D7E6;
}
.contact-form-area {
  padding: 34px 32px;
}
.contact-form-area h3 {
  font-size: 20px;
  margin-bottom: 8px;
}
.form-tip {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 22px;
}
.form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 14px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-group label {
  font-size: 14px;
  font-weight: 600;
  color: #24425B;
}
.form-group input,
.form-group select,
.form-group textarea {
  background: #F8FAFC;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  font-size: 15px;
  transition: border-color .2s ease, box-shadow .2s ease, background .2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(20,107,156,.12);
  background: #fff;
}
.form-group textarea {
  resize: vertical;
  min-height: 92px;
}
.form-submit-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 18px;
}
.privacy-note {
  font-size: 13px;
  color: var(--muted);
}
.form-success {
  display: none;
  background: #E8F7F2;
  color: #14634A;
  border-radius: 12px;
  padding: 13px 14px;
  font-size: 14px;
}
.form-success.show {
  display: block;
  animation: fadeDown .25s ease;
}

/* footer */
.site-footer {
  background: #0A1724;
  color: #A8BDCF;
  border-top: 2px solid #12293B;
}
.footer-cta-banner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 44px 0 38px;
  border-bottom: 1px solid rgba(164, 194, 216, .16);
}
.footer-cta-banner strong {
  display: block;
  color: #fff;
  font-size: 22px;
  margin-bottom: 6px;
}
.footer-cta-banner p {
  color: #849FAE;
  font-size: 15px;
  line-height: 1.7;
}
.footer-cta-banner .btn {
  background: var(--cyan);
  border-color: var(--cyan);
  color: #05202B;
  font-weight: 600;
}
.footer-cta-banner .btn:hover {
  background: var(--teal);
  border-color: var(--teal);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr 1fr 1fr;
  gap: 28px;
  padding: 38px 0 30px;
}
.footer-brand .footer-abbr,
.footer-mean-brand .footer-abbr {
  font-size: 12px;
  letter-spacing: .35em;
  color: #6C89A0;
}
.footer-brand p {
  color: #92ABB9;
  font-size: 14px;
  line-height: 1.9;
  margin-top: 14px;
}
.footer-logo {
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .05em;
}
.footer-g .footer-g {
  color: #c8dae8;
}
.footer h4 {
  color: #E9F3F9;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 9px;
}
.footer-links li a {
  display: inline-block;
  font-size: 14px;
  color: #A1B8CA;
  transition: color .2s, transform .2s;
}
.footer-links li a:hover {
  color: #fff;
  transform: translateX(3px);
}
.footer-contact-list {
  list-style: none;
  font-size: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: #A1B8CA;
}
.footer-contact-list span {
  display: inline-block;
  min-width: 68px;
  color: #E7F1F9;
}
.footer-bottom {
  border-top: 1px solid rgba(164,194,216,.1);
  padding: 18px 0;
}
.footer-bottom-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  color: #7793A8;
  font-size: 13px;
}
.footer-bottom-inner a {
  color: #8EC6DF;
}
.footer-bottom-inner a:hover {
  color: #fff;
}

/* responsive */
@media (max-width: 1024px) {
  .nav-wrap {
    padding-left: 22px;
    padding-right: 22px;
    gap: 10px;
  }
  .nav-list .nav-link {
    padding-left: 11px;
    padding-right: 11px;
  }
  .site-header {
    position: relative;
  }
}

@media (max-width: 767px) {
  .nav-wrap {
    min-height: 62px;
    flex-wrap: wrap;
    position: relative;
    padding: 0 16px;
  }
  .brand-main {
    font-size: 19px;
  }
  .navbar-main {
    display: block;
    position: fixed;
    top: 0;
    right: -96%;
    width: min(92%, 380px);
    height: 100vh;
    background: #0A1522;
    box-shadow: -28px 0 70px rgba(0,0,0,.4);
    padding: 90px 28px 30px;
    transition: right .3s ease;
    overflow-y: auto;
    z-index: -1;
  }
  .navbar-main.open {
    right: 0;
  }
  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    border-bottom: 1px solid rgba(164,194,216,.12);
    padding-bottom: 12px;
  }
  .nav-list .nav-link {
    padding: 14px 4px;
    color: #AFC4D7;
    font-size: 16px;
  }
  .nav-list .nav-link.active {
    color: #fff;
  }
  .nav-list .nav-link::after {
    display: none;
  }
  .nav-cta {
    margin-top: 24px;
    text-align: left;
  }
  .nav-cta .btn{
    width: 100%;
  }
  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
    z-index: 3;
  }
  body.drawer-open .site-header::after {
    opacity: 0;
  }
  .breadcrumb-wrap .container {
    padding-left: 16px;
    padding-right: 16px;
  }
  .crumb-list {
    padding: 12px 0;
    overflow-x: auto;
    flex-wrap: nowrap;
  }
  .crumb-list li {
    white-space: nowrap;
  }
  .article-card {
    padding-top: 38px;
  }
  .double-card-grid,
  .pair-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .contact-panel {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .contact-info {
    padding: 28px 24px 24px;
  }
  .contact-form-area {
    padding: 24px 20px 28px;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .footer-cta-banner {
    flex-direction: column;
    align-items: flex-start;
    padding: 34px 0 28px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    padding: 28px 0 20px;
    gap: 24px 18px;
  }
  .footer-bottom-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .empty-panel {
    margin: 44px 16px;
    padding: 44px 20px;
  }
  .article-return .btn{
    width: 100%;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 14px;
  }
  .nav-wrap {
    padding: 0 14px;
  }
  .article-eyebrow {
    flex-direction: column;
    align-items: flex-start;
  }
  .article-card h1 {
    font-size: 26px;
  }
  .article-body {
    font-size: 15px;
  }
  .faq-question {
    padding: 15px 14px;
    font-size: 15px;
  }
  .faq-answer {
    padding: 0 14px 16px 20px;
    font-size: 14px;
  }
}

/* roulang page: category1 */
:root {
  --brand: #146B9C;
  --brand-dark: #0D4B73;
  --neon: #2BC0D4;
  --mint: #3DD9B6;
  --navy: #091220;
  --navy-soft: #0A1424;
  --page: #F4F7FA;
  --card: #FFFFFF;
  --ink: #102433;
  --ink-soft: #59748B;
  --line: #DDE8F0;
  --shadow: 0 12px 30px rgba(19, 61, 94, 0.08);
  --shadow-hover: 0 18px 40px rgba(19, 61, 94, 0.14);
  --radius: 14px;
  --radius-lg: 20px;
  --container: 1240px;
  --gap: 24px;
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Segoe UI", sans-serif;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 120px;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  background: var(--page);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}

ul,
ol,
p,
h1,
h2,
h3,
h4 {
  margin: 0;
  padding: 0;
}

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

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

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

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 3px;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}

.section {
  padding: 84px 0;
}

.section-tight {
  padding-top: 48px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(9, 18, 32, 0.98);
  box-shadow: 0 6px 24px rgba(6, 17, 31, 0.25);
}

.site-header::after {
  content: "";
  display: block;
  height: 2px;
  background: linear-gradient(90deg, #146B9C 0%, #2BC0D4 55%, #3DD9B6 100%);
}

.nav-wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  flex-shrink: 0;
}

.brand-link {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.brand-main {
  font-size: 21px;
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: 0.02em;
  line-height: 1.25;
}

.brand-sub {
  font-size: 10px;
  font-weight: 700;
  color: var(--neon);
  letter-spacing: 0.42em;
  line-height: 1.4;
}

.navbar-main {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 18px;
  flex: 1;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
}

.nav-list li {
  position: relative;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 14px;
  font-size: 15px;
  font-weight: 600;
  color: #B9CCDE;
  border-radius: 8px;
  transition: var(--transition);
}

.nav-link:hover {
  color: #FFFFFF;
  background: rgba(255, 255, 255, 0.05);
}

.nav-link.active {
  color: var(--neon);
  text-shadow: 0 0 14px rgba(43, 192, 212, 0.5);
}

.nav-link.active::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: -4px;
  height: 2px;
  border-radius: 99px;
  background: var(--neon);
  box-shadow: 0 0 12px rgba(43, 192, 212, 0.7);
}

.nav-cta {
  display: flex;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: 10px;
  min-height: 46px;
  padding: 0 22px;
  font-size: 16px;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-neon {
  background: linear-gradient(135deg, #2BC0D4, #22A9C5);
  color: #07111F;
  border-color: rgba(255, 255, 255, 0.12);
}

.btn-neon:hover {
  box-shadow: 0 0 20px rgba(43, 192, 212, 0.35);
  background: linear-gradient(135deg, #41D5E6, #2BC0D4);
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--brand);
  color: #FFFFFF;
  border-color: var(--brand);
}

.btn-primary:hover {
  background: var(--brand-dark);
  border-color: var(--brand-dark);
  box-shadow: 0 10px 30px rgba(20, 107, 156, 0.24);
}

.btn-outline {
  background: #FFFFFF;
  color: var(--brand);
  border-color: #BBD2E3;
}

.btn-outline:hover {
  border-color: var(--brand);
  background: #F5FAFD;
  box-shadow: 0 8px 24px rgba(20, 107, 156, 0.12);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 6px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 99px;
  background: #FFFFFF;
  transition: var(--transition);
}

/* Category hero */
.page-main {
  overflow: hidden;
}

.category-hero {
  position: relative;
  padding: 64px 0 64px;
  background:
    linear-gradient(0deg, #FFFFFF 0%, rgba(255, 255, 255, 0.92) 100%),
    url("/assets/images/backpic/back-1.webp") center / cover no-repeat;
  border-bottom: 1px solid var(--line);
}

.category-hero-inner {
  position: relative;
}

.crumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 28px;
}

.crumbs a {
  color: var(--brand);
  position: relative;
}

.crumbs a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 1px;
  border-bottom: 1px dashed rgba(20, 107, 156, 0.45);
}

.crumbs .sep {
  color: #A6BCCD;
}

.crumbs .current {
  color: var(--ink);
  font-weight: 600;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.hero-copy {
  max-width: 660px;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  background: #E7F4FA;
  color: var(--brand);
  border: 1px solid #BCE0EF;
  padding: 7px 16px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 20px;
}

.hero-kicker::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 10px rgba(43, 192, 212, 0.8);
}

.hero-title {
  font-size: clamp(38px, 4.6vw, 58px);
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--ink);
  margin-bottom: 20px;
}

.hero-desc {
  font-size: 17px;
  line-height: 1.9;
  color: #4C6379;
  max-width: 620px;
  margin-bottom: 30px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 32px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 7px 14px;
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 600;
  transition: var(--transition);
}

.tag:hover {
  border-color: var(--brand);
  color: var(--brand);
}

.hero-visual {
  position: relative;
}

.hero-visual-card {
  position: relative;
  border-radius: 24px;
  background: #FFFFFF;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 14px;
  transition: var(--transition);
}

.hero-visual-card img {
  width: 100%;
  height: 330px;
  object-fit: cover;
  border-radius: 18px;
}

.hero-visual-card::before {
  content: "";
  position: absolute;
  width: 150px;
  height: 150px;
  border: 36px solid rgba(43, 192, 212, 0.1);
  border-radius: 50%;
  top: -44px;
  right: -34px;
  border-bottom-color: transparent;
  border-left-color: transparent;
  transform: rotate(18deg);
  z-index: -1;
}

.hero-card-note {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 10px 6px;
}

.hero-card-note span {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  border-radius: 12px;
  background: #E7F4FA;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.hero-card-note strong {
  display: block;
  font-size: 15px;
  color: var(--ink);
}

.hero-card-note small {
  display: block;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.6;
  margin-top: 2px;
}

/* Lead section */
.lead-section {
  background: var(--page);
}

.section-overline {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  color: var(--neon);
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(27px, 3vw, 39px);
  line-height: 1.3;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 16px;
}

.section-intro {
  font-size: 16px;
  color: var(--ink-soft);
  max-width: 680px;
}

.lead-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 36px;
  align-items: stretch;
  margin-top: 44px;
}

.lead-copy {
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 34px;
}

.lead-copy h3 {
  font-size: 21px;
  color: var(--ink);
  margin-bottom: 14px;
}

.lead-copy p {
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.9;
}

.lead-copy p + p {
  margin-top: 16px;
}

.lead-aside {
  background: #FFFFFF;
  border: 1px solid #D1E4EF;
  border-radius: var(--radius-lg);
  padding: 30px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
}

.lead-aside h3 {
  font-size: 19px;
  color: var(--brand-dark);
  margin-bottom: 20px;
}

.key-list {
  list-style: none;
  margin: 0 0 24px;
}

.key-list li {
  position: relative;
  padding: 12px 0 14px 26px;
  border-bottom: 1px solid #EAF1F7;
  color: #425D72;
  font-size: 15px;
  line-height: 1.7;
}

.key-list li::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 25px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 0 3px rgba(43, 192, 212, 0.18);
}

.key-list li:last-child {
  border-bottom: none;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  color: var(--brand);
}

.text-link:hover {
  color: var(--brand-dark);
}

.text-link::after {
  content: "→";
  transition: transform 0.2s ease;
}

.text-link:hover::after {
  transform: translateX(4px);
}

/* Feature separate blocks */
.feature-section {
  background: #FFFFFF;
}

.section-head-center {
  text-align: left;
  max-width: 720px;
  margin-bottom: 44px;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--page);
  border: 1px solid var(--line);
  border-radius: 22px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.feature-block:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.feature-block--reverse .feature-visual {
  order: 2;
}

.feature-visual {
  position: relative;
  min-height: 360px;
  overflow: hidden;
}

.feature-visual img {
  width: 100%;
  height: 100%;
  min-height: 360px;
  object-fit: cover;
  border: none;
}

.feature-content {
  padding: 40px 44px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.feature-kicker {
  font-size: 14px;
  font-weight: 700;
  color: var(--neon);
  letter-spacing: 0.05em;
  margin-bottom: 12px;
}

.feature-content h2 {
  font-size: 24px;
  line-height: 1.4;
  color: var(--ink);
  margin-bottom: 16px;
}

.feature-content p {
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
  margin-bottom: 20px;
}

.mini-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mini-list li {
  color: #3B556A;
  font-size: 15px;
  padding-left: 26px;
  position: relative;
}

.mini-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--mint);
  font-weight: 800;
}

/* Service direction matrix */
.service-section {
  background: var(--page);
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 44px;
}

.service-card {
  position: relative;
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px;
  transition: var(--transition);
  overflow: hidden;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: #BFDFEF;
}

.service-card--wide {
  grid-column: span 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  align-items: center;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #FFFFFF 0%, #F1F9FD 100%);
  padding: 34px;
}

.service-icon {
  width: 46px;
  height: 46px;
  flex-shrink: 0;
  border-radius: 14px;
  background: #E7F4FA;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
}

.service-card--wide .service-icon {
  width: 54px;
  height: 54px;
  font-size: 25px;
  background: #D9EEF9;
}

.service-card h3 {
  font-size: 20px;
  line-height: 1.4;
  color: var(--ink);
  margin-bottom: 10px;
}

.service-card p {
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.85;
  margin-bottom: 14px;
}

.service-list-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.card-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 700;
  color: var(--brand);
  font-size: 15px;
}

.card-arrow::after {
  content: "→";
  transition: transform 0.2s ease;
}

.card-arrow:hover::after {
  transform: translateX(4px);
}

/* Process */
.process-section {
  background: #FFFFFF;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: 44px;
  counter-reset: process;
}

.process-item {
  background: var(--page);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  position: relative;
  transition: var(--transition);
  counter-increment: process;
}

.process-item:hover {
  background: #FFFFFF;
  box-shadow: var(--shadow);
  border-color: #CBE5F2;
  transform: translateY(-3px);
}

.process-num {
  font-size: 40px;
  font-weight: 800;
  color: rgba(20, 107, 156, 0.15);
  line-height: 1;
  margin-bottom: 20px;
}

.process-num::after {
  content: counter(process, decimal-leading-zero);
}

.process-item h3 {
  font-size: 18px;
  color: var(--ink);
  margin-bottom: 8px;
}

.process-item p {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.75;
}

/* Deliverable checklist */
.check-section {
  background: #EFF6FB;
}

.check-section .section-head-center {
  margin-bottom: 36px;
}

.check-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.check-item {
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
}

.check-item:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.check-item .check-line {
  width: 32px;
  height: 4px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--brand), var(--neon));
  margin-bottom: 18px;
}

.check-item h3 {
  font-size: 17px;
  color: var(--ink);
  margin-bottom: 8px;
}

.check-item p {
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.7;
}

/* FAQ */
.faq-section {
  background: #FFFFFF;
}

.faq-list {
  max-width: 860px;
  margin: 40px auto 0;
}

.accordion-item {
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin-bottom: 12px;
  box-shadow: 0 2px 8px rgba(19, 61, 94, 0.03);
  transition: var(--transition);
}

.accordion-item.open {
  border-color: #A5CFE4;
  box-shadow: var(--shadow);
}

.accordion-item:last-child {
  margin-bottom: 0;
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  text-align: left;
  min-height: 68px;
  padding: 18px 24px;
  border-radius: var(--radius);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.accordion-icon {
  position: relative;
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  border-radius: 50%;
  background: #E7F4FA;
  transition: var(--transition);
}

.accordion-icon::before,
.accordion-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 10px;
  height: 2px;
  background: var(--brand);
  transform: translate(-50%, -50%);
  border-radius: 99px;
}

.accordion-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

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

.accordion-item.open .accordion-icon::before,
.accordion-item.open .accordion-icon::after {
  background: #FFFFFF;
}

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

.accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.accordion-item.open .accordion-panel {
  max-height: 600px;
}

.accordion-inner {
  padding: 0 24px 24px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.9;
  border-top: 1px solid #ECF2F7;
  margin-top: -2px;
  padding-top: 16px;
}

/* Contact section */
.contact-section {
  background: var(--page);
}

.contact-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
  overflow: hidden;
  gap: 0;
}

.contact-copy {
  background: linear-gradient(140deg, #FFFFFF 0%, #F0F7FC 100%);
  padding: 42px 44px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.contact-copy h2 {
  font-size: clamp(25px, 2.8vw, 34px);
  line-height: 1.35;
  color: var(--ink);
  margin-bottom: 16px;
}

.contact-copy p {
  color: var(--ink-soft);
  font-size: 16px;
  margin-bottom: 24px;
  max-width: 440px;
}

.contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 4px;
}

.contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: #476177;
}

.contact-list li span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 8px;
  background: #D9EEF9;
  color: var(--brand);
  font-weight: 800;
  font-size: 14px;
}

.contact-form-panel {
  background: #FFFFFF;
  padding: 42px 44px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.form-grid .field-full {
  grid-column: span 2;
}

.field label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: #3A5368;
  margin-bottom: 7px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  background: #F8FAFC;
  border: 1px solid #DCE7F0;
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 15px;
  color: var(--ink);
  transition: var(--transition);
  min-height: 48px;
  line-height: 1.5;
}

.field textarea {
  min-height: 110px;
  resize: vertical;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--brand);
  background: #FFFFFF;
  box-shadow: 0 0 0 3px rgba(20, 107, 156, 0.12);
}

.form-note {
  margin-top: 16px;
  color: #71899B;
  font-size: 13px;
}

.form-footer {
  margin-top: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
}

.form-success {
  display: none;
  margin-top: 28px;
  padding: 30px;
  background: #EFFAF8;
  border: 1px solid #B9E8DF;
  border-radius: var(--radius);
  text-align: center;
  color: #1E7A68;
}

.form-success .success-icon {
  width: 46px;
  height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #3DD9B6;
  color: #fff;
  font-weight: 800;
  font-size: 22px;
  margin-bottom: 16px;
}

.form-success strong {
  display: block;
  font-size: 20px;
  color: #174A3F;
  margin-bottom: 8px;
}

.form-success p {
  font-size: 15px;
}

.form-submitted .form-grid,
.form-submitted .form-note,
.form-submitted .form-footer {
  display: none;
}

.form-submitted .form-success {
  display: block;
}

/* Footer */
.site-footer {
  background: #081120;
  color: #A9BFD2;
  border-top: 2px solid rgba(43, 192, 212, 0.2);
  font-size: 14px;
}

.footer-cta-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  border: 1px solid rgba(43, 192, 212, 0.3);
  background: rgba(20, 107, 156, 0.18);
  border-radius: 16px;
  padding: 24px 28px;
  margin-top: 42px;
  margin-bottom: 42px;
}

.footer-cta-banner strong {
  display: block;
  color: #FFFFFF;
  font-size: 18px;
  margin-bottom: 4px;
}

.footer-cta-banner p {
  color: #A9BFD2;
  font-size: 14px;
}

.footer-cta-banner .btn {
  background: var(--neon);
  color: #07111F;
  border-radius: 10px;
  white-space: nowrap;
}

.footer-cta-banner .btn:hover {
  box-shadow: 0 0 22px rgba(43, 192, 212, 0.35);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 36px;
  padding: 30px 0 36px;
}

.footer-logo {
  font-weight: 800;
  font-size: 22px;
  color: #FFFFFF;
  letter-spacing: 0.01em;
}

.footer-abbr {
  color: var(--neon);
  letter-spacing: 0.32em;
  font-size: 10px;
  font-weight: 700;
  margin-top: 6px;
  margin-bottom: 16px;
}

.footer-brand p {
  color: #8CA5B9;
  line-height: 1.85;
  font-size: 14px;
  max-width: 340px;
}

.site-footer h4 {
  color: #FFFFFF;
  font-size: 16px;
  margin-bottom: 16px;
  font-weight: 700;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: #8CA5B9;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--neon);
  padding-left: 3px;
}

.footer-contact-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-contact-list li {
  color: #8CA5B9;
  line-height: 1.7;
}

.footer-contact-list span {
  color: #C8D9E6;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 18px 0 24px;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  color: #6F869A;
  font-size: 14px;
}

.footer-bottom-inner a {
  color: #A9BFD2;
}

.footer-bottom-inner a:hover {
  color: #FFFFFF;
}

/* Responsive */
@media (max-width: 1024px) {
  .nav-toggle {
    display: flex;
  }

  .navbar-main {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--navy-soft);
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: 14px 22px 24px;
    gap: 6px;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
    border-top: 1px solid rgba(43, 192, 212, 0.25);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
  }

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

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
  }

  .nav-list li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .nav-list li:last-child {
    border-bottom: none;
  }

  .nav-link {
    width: 100%;
    padding: 10px 14px;
    color: #D3E2EE;
  }

  .nav-link.active::after {
    left: 14px;
    right: 70%;
    bottom: 0;
  }

  .nav-cta {
    margin-top: 12px;
  }

  .nav-cta .btn {
    width: 100%;
  }

  .site-header.nav-open .nav-toggle span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .site-header.nav-open .nav-toggle span:nth-child(2) {
    opacity: 0;
  }

  .site-header.nav-open .nav-toggle span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .hero-copy {
    max-width: 760px;
  }

  .hero-visual {
    max-width: 640px;
  }

  .lead-grid,
  .feature-block {
    grid-template-columns: 1fr;
  }

  .feature-block--reverse .feature-visual {
    order: initial;
  }

  .feature-visual {
    min-height: 300px;
  }

  .feature-visual img {
    min-height: 300px;
  }

  .service-card--wide {
    grid-template-columns: 1fr;
  }

  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .check-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-card {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 767px) {
  .container {
    padding: 0 20px;
  }

  .nav-wrap {
    height: 70px;
    padding: 0 20px;
  }

  .brand-main {
    font-size: 18px;
  }

  .section {
    padding: 56px 0;
  }

  .category-hero {
    padding: 40px 0 44px;
  }

  .crumbs {
    margin-bottom: 20px;
  }

  .hero-title {
    font-size: 34px;
  }

  .hero-desc {
    font-size: 16px;
  }

  .hero-visual-card img {
    height: 240px;
  }

  .lead-section .lead-grid,
  .section-head-center {
    margin-top: 20px;
  }

  .lead-copy,
  .lead-aside {
    padding: 24px;
  }

  .feature-content {
    padding: 30px 24px;
  }

  .feature-visual {
    min-height: 230px;
  }

  .feature-visual img {
    min-height: 230px;
  }

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

  .service-card--wide {
    grid-column: span 1;
    grid-template-columns: 1fr;
    padding: 24px;
  }

  .process-grid,
  .check-grid,
  .contact-form-panel .form-grid {
    grid-template-columns: 1fr;
  }

  .form-grid .field-full {
    grid-column: span 1;
  }

  .accordion-trigger {
    font-size: 15px;
    padding: 16px 16px;
  }

  .accordion-inner {
    padding: 0 16px 18px;
    font-size: 14px;
  }

  .contact-copy,
  .contact-form-panel {
    padding: 28px 24px;
  }

  .contact-list {
    gap: 8px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    padding-bottom: 20px;
  }

  .footer-cta-banner {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-bottom-inner {
    flex-direction: column;
    align-items: flex-start;
  }

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

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

@media (min-width: 768px) and (max-width: 1024px) {
  .contact-form-panel .form-grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* roulang page: category2 */
:root {
  --c-primary: #146B9C;
  --c-primary-dark: #0D4B73;
  --c-cyan: #2BC0D4;
  --c-mint: #3DD9B6;
  --c-ink: #102433;
  --c-muted: #59748B;
  --c-line: #DDE8F0;
  --c-bg: #F4F7FA;
  --c-card: #FFFFFF;
  --c-navy: #091220;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow: 0 12px 30px rgba(19, 61, 94, 0.08);
  --shadow-hover: 0 18px 40px rgba(19, 61, 94, 0.14);
  --font-stack: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-stack);
  background: var(--c-bg);
  color: var(--c-ink);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img {
  display: block;
  max-width: 100%;
}
a {
  color: var(--c-primary);
  text-decoration: none;
}
a:hover {
  color: var(--c-primary-dark);
  text-decoration: underline;
  text-decoration-style: dashed;
  text-underline-offset: 4px;
}
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 3px;
}
ul, ol {
  list-style: none;
}
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
.site-header {
  position: relative;
  background: var(--c-navy);
  z-index: 50;
}
.site-header::after {
  content: "";
  display: block;
  height: 3px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-cyan), var(--c-mint));
}
.nav-wrap {
  max-width: 1280px;
  margin: 0 auto;
  min-height: 74px;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}
.brand {
  display: flex;
  align-items: center;
  min-height: 74px;
}
.brand-link {
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-decoration: none;
  line-height: 1.2;
  max-width: 250px;
}
.brand-main {
  color: #FFFFFF;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.03em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.brand-sub {
  color: #7290A8;
  font-size: 11px;
  letter-spacing: 0.35em;
  font-weight: 500;
  text-transform: uppercase;
}
.navbar-main {
  display: flex;
  align-items: center;
  gap: 22px;
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 8px 15px;
  color: #B6C7D8;
  font-size: 15px;
  font-weight: 500;
  border-radius: 999px;
  transition: color 0.2s ease, background 0.2s ease;
}
.nav-link:hover {
  color: #EAF6FF;
  background: rgba(255, 255, 255, 0.06);
  text-decoration: none;
}
.nav-link.active {
  color: #FFFFFF;
  background: rgba(43, 192, 212, 0.12);
  box-shadow: inset 0 -2px 0 var(--c-cyan);
}
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 2px;
  height: 2px;
  background: var(--c-cyan);
  border-radius: 999px;
  box-shadow: 0 0 10px rgba(43, 192, 212, 0.7);
}
.nav-cta {
  margin-left: 8px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 22px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease, background-color 0.25s ease;
  text-decoration: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--c-primary), var(--c-primary-dark));
  color: #FFFFFF;
  border-color: transparent;
  box-shadow: 0 10px 24px rgba(20, 107, 156, 0.24);
}
.btn-primary:hover {
  transform: translateY(-2px);
  color: #FFFFFF;
  box-shadow: 0 14px 28px rgba(20, 107, 156, 0.32);
  background: var(--c-primary-dark);
  text-decoration: none;
}
.btn-outline {
  background: rgba(255, 255, 255, 0.08);
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.35);
}
.btn-outline:hover {
  border-color: var(--c-cyan);
  color: #FFFFFF;
  background: rgba(255, 255, 255, 0.14);
  text-decoration: none;
  transform: translateY(-2px);
}
.btn-light {
  background: #FFFFFF;
  color: var(--c-primary-dark);
  border-color: #FFFFFF;
}
.btn-light:hover {
  color: var(--c-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(13, 75, 115, 0.18);
  text-decoration: none;
}
.btn-neon {
  background: var(--c-cyan);
  color: #071A26;
  box-shadow: 0 0 16px rgba(43, 192, 212, 0.16);
  border-radius: 999px;
}
.btn-neon:hover {
  background: #6CE6F0;
  color: #081A26;
  box-shadow: 0 0 20px rgba(43, 192, 212, 0.44);
  transform: translateY(-2px);
  text-decoration: none;
}
.btn-light-outline {
  background: transparent;
  border-color: var(--c-primary);
  color: var(--c-primary);
}
.btn-light-outline:hover {
  background: rgba(20, 107, 156, 0.06);
  border-color: var(--c-primary-dark);
  color: var(--c-primary-dark);
  text-decoration: none;
}
.nav-toggle {
  display: none;
  border: 0;
  background: transparent;
  width: 44px;
  height: 44px;
  padding: 10px 8px;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 26px;
  background-color: #FFFFFF;
  border-radius: 4px;
}
.nav-toggle span:nth-child(2) {
  width: 18px;
}
.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
  width: 26px;
}

.breadcrumb {
  padding: 18px 0 4px;
  font-size: 13px;
  color: #A9C1D2;
}
.breadcrumb a {
  color: #C5DCEC;
}
.breadcrumb a:hover {
  color: #FFFFFF;
  text-decoration: none;
}
.breadcrumb-sep {
  margin: 0 8px;
  color: #617A90;
}

.page-banner {
  position: relative;
  background-color: var(--c-navy);
  background-image: linear-gradient(to right, rgba(9, 18, 32, 0.9), rgba(9, 18, 32, 0.65)), url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  color: #FFFFFF;
  padding: 78px 0 86px;
}
.page-banner::after {
  content: "";
  position: absolute;
  right: -10%;
  bottom: -60%;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  border: 44px solid rgba(43, 192, 212, 0.08);
  pointer-events: none;
}
.page-banner-inner {
  position: relative;
  z-index: 2;
}
.page-banner-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  color: #8DE2EB;
  background: rgba(43, 192, 212, 0.1);
  padding: 8px 18px;
  border-radius: 999px;
  border: 1px solid rgba(43, 192, 212, 0.4);
  margin-bottom: 24px;
}
.page-banner h1 {
  max-width: 900px;
  font-size: clamp(36px, 5vw, 58px);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: #FFFFFF;
  margin-bottom: 22px;
}
.page-banner h1 span {
  color: #6EE2E8;
}
.banner-lead {
  max-width: 760px;
  font-size: 18px;
  line-height: 1.9;
  color: #DCEAF3;
  margin-bottom: 34px;
}
.banner-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.section {
  padding: 88px 0;
}
.bg-white {
  background: #FFFFFF;
}
.section-head {
  max-width: 820px;
  margin-bottom: 48px;
}
.section-inline-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--c-primary);
  border: 1px solid #C7DFEF;
  border-radius: 999px;
  padding: 5px 14px;
  margin-bottom: 16px;
  background: #EDF6FB;
}
.section-title {
  font-size: clamp(28px, 3.2vw, 40px);
  line-height: 1.25;
  font-weight: 800;
  color: var(--c-ink);
  margin-bottom: 18px;
}
.section-desc {
  font-size: 17px;
  line-height: 1.9;
  color: var(--c-muted);
}

.quote-block {
  position: relative;
  background: #E9F4FB;
  border-left: 4px solid var(--c-cyan);
  border-radius: 0 16px 16px 0;
  padding: 28px 32px;
  font-size: 17px;
  line-height: 1.9;
  color: var(--c-ink);
}

.intro-split {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 48px;
  align-items: center;
}
.intro-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  min-height: 280px;
  background: #DFEAF2;
}
.intro-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 300px;
}
.intro-visual .image-tag {
  position: absolute;
  left: 18px;
  bottom: 18px;
  background: rgba(9, 18, 32, 0.72);
  backdrop-filter: saturate(1.2);
  color: #FFFFFF;
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 13px;
  border: 1px solid rgba(255, 255, 255, 0.16);
}
.body-copy p {
  margin-bottom: 20px;
  color: #3A5068;
}
.body-copy p:last-child {
  margin-bottom: 0;
}
.check-list {
  margin-top: 26px;
  display: grid;
  gap: 14px;
}
.check-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  color: #29465C;
}
.check-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #E1F5F9;
  color: var(--c-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 800;
  flex: none;
  margin-top: 4px;
}

.scope-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}
.scope-row {
  background: var(--c-card);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-md);
  padding: 28px 30px;
  box-shadow: var(--shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.scope-row:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.scope-index {
  font-size: 13px;
  font-weight: 800;
  color: var(--c-cyan);
  background: #E8F8FB;
  width: 36px;
  height: 36px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.scope-row h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--c-ink);
  margin-bottom: 10px;
}
.scope-row p {
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.85;
}

.topic-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}
.tag {
  display: inline-flex;
  align-items: center;
  background: #FFFFFF;
  border: 1px solid var(--c-line);
  color: var(--c-primary);
  font-size: 14px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 999px;
  box-shadow: 0 6px 14px rgba(19, 61, 94, 0.04);
  transition: border-color 0.2s, background 0.2s, color 0.2s;
}
.tag:hover {
  background: rgba(20, 107, 156, 0.06);
  border-color: rgba(20, 107, 156, 0.45);
  color: var(--c-primary-dark);
  text-decoration: none;
}
.tag-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-cyan);
  margin-right: 9px;
}

.timeline-panel {
  background: var(--c-navy);
  border-radius: var(--radius-lg);
  padding: 54px;
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
}
.timeline-panel::before {
  content: "";
  position: absolute;
  right: -80px;
  top: -100px;
  width: 260px;
  height: 260px;
  border: 3px solid rgba(43, 192, 212, 0.22);
  border-radius: 50%;
}
.timeline-panel h2 {
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.3;
  font-weight: 800;
  margin-bottom: 16px;
}
.timeline-panel .panel-desc {
  color: #BDD2E2;
  max-width: 760px;
  margin-bottom: 44px;
}
.timeline-steps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 30px;
}
.timeline-steps::before {
  content: "";
  position: absolute;
  top: 25px;
  left: 4%;
  right: 4%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(43, 192, 212, 0.88), rgba(61, 217, 182, 0.7), transparent);
}
.step-item {
  position: relative;
  z-index: 2;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  padding: 24px 22px;
  backdrop-filter: blur(5px);
  transition: border-color 0.25s, transform 0.25s;
}
.step-item:hover {
  border-color: rgba(43, 192, 212, 0.7);
  transform: translateY(-4px);
}
.step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, #185E8F, #287DA5);
  box-shadow: 0 0 0 2px rgba(43, 192, 212, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 17px;
  color: #FFFFFF;
  margin-bottom: 18px;
}
.step-item h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  color: #FFFFFF;
}
.step-item p {
  font-size: 14px;
  line-height: 1.7;
  color: #BFD2EE;
}

.reading-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 30px;
  background: #FFFFFF;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.reading-cover {
  min-height: 320px;
  background: #DCEAF2;
}
.reading-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 320px;
}
.reading-content {
  padding: 40px 42px 40px 20px;
}
.reading-content h2 {
  font-size: 26px;
  line-height: 1.35;
  font-weight: 800;
  margin-bottom: 16px;
}
.reading-content p {
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.9;
  margin-bottom: 22px;
}
.reading-list {
  display: grid;
  gap: 10px;
  margin-top: 20px;
}
.reading-list li {
  display: flex;
  gap: 10px;
  align-items: center;
  font-size: 15px;
  color: #374F63;
  border-bottom: 1px solid #EBF2F7;
  padding-bottom: 10px;
}
.reading-list li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-mint);
  flex: none;
}
.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.faq-section {
  background: #FFFFFF;
}
.faq-grid {
  max-width: 960px;
  display: grid;
  gap: 16px;
}
.faq-item {
  background: var(--c-bg);
  border: 1px solid var(--c-line);
  border-radius: 16px;
  overflow: hidden;
  transition: border-color 0.25s, box-shadow 0.25s;
}
.faq-item:hover {
  border-color: #B6D9E7;
  box-shadow: 0 12px 30px rgba(19, 61, 94, 0.06);
}
.faq-item[open] {
  border-color: #9DCCDF;
  box-shadow: var(--shadow);
}
.faq-question {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 22px 26px;
  cursor: pointer;
  font-size: 17px;
  font-weight: 700;
  color: var(--c-ink);
  user-select: none;
}
.faq-question::-webkit-details-marker {
  display: none;
}
.faq-question::after {
  content: "+";
  display: flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(20, 107, 156, 0.08);
  color: var(--c-primary);
  font-size: 24px;
  font-weight: 400;
  transition: transform 0.25s, background 0.25s, color 0.25s;
}
.faq-item[open] .faq-question::after {
  transform: rotate(45deg);
  background: var(--c-primary);
  color: #FFFFFF;
}
.faq-answer {
  padding: 0 26px 26px;
  color: var(--c-muted);
  font-size: 15px;
  line-height: 1.9;
}

.contact-wrapper {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 46px;
  background: #EBF4FA;
  border: 1px solid #D3E8F1;
  border-radius: 24px;
  padding: 48px;
  box-shadow: var(--shadow);
}
.contact-intro {
  padding-right: 20px;
}
.contact-intro h2 {
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.35;
  font-weight: 800;
  margin-bottom: 20px;
}
.contact-intro p {
  color: var(--c-muted);
  font-size: 16px;
  line-height: 1.9;
  margin-bottom: 24px;
}
.contact-points {
  display: grid;
  gap: 12px;
  margin-bottom: 26px;
}
.contact-points li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  color: #30506A;
}
.contact-points li::before {
  content: "✓";
  color: var(--c-primary);
  font-weight: 900;
}
.contact-form {
  background: #FFFFFF;
  border-radius: 18px;
  padding: 30px;
  border: 1px solid var(--c-line);
  box-shadow: 0 12px 30px rgba(19, 61, 94, 0.08);
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.form-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.form-field.full {
  grid-column: span 2;
}
.form-field label {
  font-size: 14px;
  font-weight: 600;
  color: var(--c-ink);
}
.form-field input,
.form-field select,
.form-field textarea {
  min-height: 46px;
  border: 1px solid var(--c-line);
  border-radius: 10px;
  background: #F8FAFC;
  font-family: inherit;
  font-size: 15px;
  padding: 10px 14px;
  color: var(--c-ink);
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
}
.form-field textarea {
  min-height: 116px;
  resize: vertical;
}
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--c-primary);
  background: #FFFFFF;
  box-shadow: 0 0 0 4px rgba(20, 107, 156, 0.12);
}
.form-submit {
  grid-column: span 2;
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.form-note {
  font-size: 13px;
  color: #7890A3;
}
.success-note {
  display: none;
  grid-column: span 2;
  background: #E7F9F0;
  border: 1px solid #9FE0C1;
  border-radius: 12px;
  padding: 18px 20px;
  color: #17745A;
  font-weight: 600;
}
.success-note.show {
  display: block;
}
.is-hidden {
  display: none;
}
.form-success-title {
  font-size: 17px;
  color: #125C45;
  margin-bottom: 2px;
}

.site-footer {
  background: var(--c-navy);
  color: #BBD0DF;
  padding: 66px 0 0;
}
.footer-cta-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  background: #0F2238;
  border: 1px solid rgba(62, 128, 163, 0.5);
  border-radius: 18px;
  padding: 26px 30px;
  margin-bottom: 50px;
}
.footer-cta-banner strong {
  color: #FFFFFF;
  font-size: 20px;
  font-weight: 700;
  display: block;
  margin-bottom: 6px;
}
.footer-cta-banner p {
  font-size: 15px;
  color: #AFC7DD;
}
.footer-cta-banner .btn {
  background: var(--c-cyan);
  color: #071A26;
  border-radius: 999px;
}
.footer-cta-banner .btn:hover {
  background: #6CE6F0;
  box-shadow: 0 0 18px rgba(43, 192, 212, 0.32);
  color: #081A26;
}
.footer-grid {
  display: grid;
  gap: 38px;
  padding-bottom: 46px;
}
.footer-main {
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  align-items: start;
}
.footer-logo {
  font-size: 22px;
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: 0.02em;
  line-height: 1.4;
}
.footer-abbr {
  font-size: 11px;
  letter-spacing: 0.35em;
  color: #6C8CA0;
  margin: 6px 0 16px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.9;
  color: #B0C7D9;
}
.site-footer h4 {
  margin-bottom: 18px;
  color: #FFFFFF;
  font-size: 16px;
  font-weight: 700;
}
.footer-links {
  display: grid;
  gap: 12px;
}
.footer-links a {
  color: #BBD0DF;
  font-size: 14px;
  transition: color 0.2s, padding-left 0.2s;
}
.footer-links a:hover {
  color: var(--c-cyan);
  padding-left: 4px;
  text-decoration: none;
}
.footer-contact-list {
  display: grid;
  gap: 11px;
  font-size: 14px;
  color: #B6CADC;
}
.footer-contact-list span {
  color: #829FB3;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 14px;
  color: #9FB6C7;
}
.footer-bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 24px 0;
}
.footer-bottom-inner a {
  color: #9FB6C7;
}
.footer-bottom-inner a:hover {
  color: var(--c-cyan);
}

@media (max-width: 1024px) {
  .site-header {
    position: sticky;
    top: 0;
  }
  .nav-wrap {
    padding: 0 20px;
  }
  .navbar-main {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(6, 14, 26, 0.98);
    z-index: 100;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 100px 36px 36px;
    transform: translateX(-100%);
    visibility: hidden;
    transition: transform 0.3s ease, visibility 0.3s;
    overflow-y: auto;
    gap: 20px;
    box-shadow: 10px 0 30px rgba(0, 0, 0, 0.2);
  }
  .navbar-main.open {
    transform: translateX(0);
    visibility: visible;
  }
  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    gap: 8px;
  }
  .nav-list li {
    width: 100%;
  }
  .nav-link {
    width: 100%;
    font-size: 18px;
    padding: 14px 12px;
    border-radius: 12px;
  }
  .nav-cta {
    margin-left: 0;
    margin-top: 12px;
  }
  .btn-neon {
    width: 100%;
    min-height: 52px;
    justify-content: center;
  }
  .nav-toggle {
    display: flex;
    z-index: 120;
    position: relative;
  }
  .timeline-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }
  .timeline-steps::before {
    display: none;
  }
  .reading-panel {
    grid-template-columns: 1fr;
  }
  .reading-content {
    padding: 24px 24px 30px;
  }
  .contact-wrapper {
    grid-template-columns: 1fr;
    padding: 32px;
  }
  .footer-main {
    grid-template-columns: 1fr 1fr;
  }
  .footer-brand {
    grid-column: span 2;
  }
}
@media (max-width: 767px) {
  .section {
    padding: 60px 0;
  }
  .nav-wrap {
    flex-wrap: nowrap;
  }
  .brand-main {
    font-size: 17px;
  }
  .page-banner {
    padding: 56px 0 64px;
  }
  .page-banner h1 {
    font-size: 34px;
  }
  .banner-lead {
    font-size: 16px;
  }
  .intro-split {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .intro-visual img,
  .intro-visual {
    min-height: 220px;
  }
  .section-title {
    font-size: 28px;
  }
  .section-head {
    margin-bottom: 34px;
  }
  .quote-block {
    padding: 22px;
  }
  .scope-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .reading-panel {
    grid-template-columns: 1fr;
  }
  .reading-cover img {
    min-height: 220px;
  }
  .timeline-panel {
    padding: 34px 24px;
    border-radius: 18px;
  }
  .timeline-steps {
    grid-template-columns: 1fr;
  }
  .contact-wrapper {
    grid-template-columns: 1fr;
    padding: 24px 20px;
  }
  .contact-form {
    padding: 22px;
  }
  .form-grid {
    grid-template-columns: 1fr;
  }
  .form-field.full {
    grid-column: span 1;
  }
  .form-submit {
    grid-column: span 1;
  }
  .footer-cta-banner {
    padding: 22px;
  }
  .footer-main {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-brand {
    grid-column: span 1;
  }
  .footer-bottom-inner {
    flex-direction: column;
    align-items: flex-start;
    font-size: 13px;
  }
}
@media (max-width: 520px) {
  .nav-wrap {
    padding: 0 16px;
  }
  .brand-sub {
    letter-spacing: 0.18em;
  }
  .brand-main {
    white-space: normal;
  }
  .btn {
    width: 100%;
  }
  .banner-actions {
    width: 100%;
  }
  .form-submit {
    width: 100%;
  }
  .scope-row {
    padding: 24px;
  }
  .reading-list {
    font-size: 14px;
  }
  .page-banner-label {
    font-size: 12px;
  }
  .section-title {
    font-size: 26px;
  }
  .contact-intro h2 {
    font-size: 24px;
  }
}