/* roulang page: index */
:root{
  --primary:#39788F;
  --primary-dark:#2A5F73;
  --primary-light:#E6F0F4;
  --accent:#E7A33E;
  --accent-dark:#CC8A2B;
  --bg:#F6F8F9;
  --card:#FFFFFF;
  --text:#1F2A30;
  --text-2:#5A6A72;
  --text-3:#8A9AA3;
  --line:#E3E9ED;
  --shadow-sm:0 6px 20px rgba(30,60,80,0.05);
  --shadow-md:0 12px 28px rgba(30,60,80,0.10);
  --r-lg:14px;
  --r-md:10px;
  --r-sm:8px;
  --max-width:1200px;
  --pad:24px;
  --font:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;line-height:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px}
.container{max-width:var(--max-width);margin:0 auto;padding:0 var(--pad)}
.section{padding:96px 0}
.section-head{max-width:820px;margin-bottom:44px}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--primary);font-size:14px;font-weight:600;
  letter-spacing:.03em;margin-bottom:12px;
}
.section-kicker::before{content:"";width:22px;height:2px;background:var(--accent)}
.section-title{font-size:clamp(22px,3vw,30px);line-height:1.35;font-weight:700;letter-spacing:-0.01em}
.section-sub{margin-top:14px;color:var(--text-2);font-size:15px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:12px 26px;border-radius:8px;font-size:15px;font-weight:600;
  transition:all .25s ease;white-space:nowrap;min-height:46px;
}
.btn-accent{background:var(--accent);color:#1F2A30;box-shadow:0 6px 18px rgba(231,163,62,.25)}
.btn-accent:hover{background:#F2B252;box-shadow:0 9px 22px rgba(231,163,62,.32);transform:translateY(-1px)}
.btn-accent:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(231,163,62,.2)}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 5px 16px rgba(57,120,143,.22)}
.btn-primary:hover{background:var(--primary-dark);box-shadow:0 9px 22px rgba(57,120,143,.3);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{border:1px solid var(--primary);color:var(--primary);background:transparent}
.btn-ghost:hover{background:var(--primary-light)}
.btn-link{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:15px;transition:gap .2s}
.btn-link:hover{gap:12px;color:var(--primary-dark)}
.tag{display:inline-flex;align-items:center;padding:5px 14px;border-radius:999px;font-size:13px;line-height:1.4;background:var(--primary-light);color:var(--primary)}
.tag-outline{border:1px solid var(--line);background:transparent;color:var(--text-2)}
/* Header / Nav */
.site-header{
  position:sticky;top:0;z-index:90;background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
  height:72px;
}
.header-inner{display:flex;align-items:center;height:72px;gap:48px}
.brand{font-size:20px;font-weight:700;color:var(--text);letter-spacing:-0.01em;display:flex;align-items:center}
.brand i{width:8px;height:8px;border-radius:50%;background:var(--accent);margin-left:8px;display:inline-block}
.nav-list{display:flex;align-items:center;gap:36px;margin-left:48px}
.nav-link{
  position:relative;font-size:15px;color:var(--text-2);font-weight:500;
  padding:10px 0;transition:color .2s;
}
.nav-link:hover{color:var(--primary)}
.nav-link.active{color:var(--text)}
.nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:-2px;transform:translateX(-50%);
  width:20px;height:3px;border-radius:2px;background:var(--accent);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:16px}
.nav-cta-btn{min-height:0;height:38px;padding:0 18px;font-size:14px;}
.nav-toggle,.nav-close{display:none;width:44px;height:44px;align-items:center;justify-content:center;color:var(--text);border-radius:8px}
.nav-toggle:hover,.nav-close:hover{background:var(--bg)}
.nav-toggle svg,.nav-close svg{width:22px;height:22px}
/* Hero */
.hero-section{position:relative;overflow:hidden;background:#fff;border-bottom:1px solid var(--line);padding:86px 0 90px}
.hero-bg{
  position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.55;
}
.hero-bg::before{content:"";position:absolute;inset:0;background:#fff;opacity:.82}
.hero-grid{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;background:var(--primary-light);
  color:var(--primary);border:1px solid rgba(57,120,143,.2);
  padding:6px 16px;border-radius:999px;font-size:13px;font-weight:600;margin-bottom:24px;
}
.hero-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:#4DB6AC}
.hero-title{font-size:clamp(28px,4.6vw,44px);line-height:1.3;font-weight:700;letter-spacing:.01em}
.hero-lead{margin-top:24px;font-size:16px;line-height:1.9;color:var(--text-2)}
.hero-meta{display:flex;flex-wrap:wrap;gap:16px 24px;margin-top:22px;font-size:13px;color:var(--text-3)}
.hero-meta span{display:inline-flex;align-items:center;gap:6px}
.hero-meta svg{width:15px;height:15px}
.hero-actions{margin-top:32px;display:flex;align-items:center;flex-wrap:wrap;gap:16px}
.hero-visual{position:relative}
.hero-frame{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-md);padding:8px;
}
.hero-frame img{width:100%;aspect-ratio:4/3;border-radius:10px;object-fit:cover}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:23px;padding-top:18px;border-top:1px dashed var(--line);font-size:13px;color:var(--text-2)}
.hero-trust li{display:flex;align-items:center;gap:7px}
.hero-trust li::before{content:"";width:5px;height:5px;background:var(--accent);border-radius:50%}
/* Pain area */
.pain-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.pain-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 22px;box-shadow:var(--shadow-sm);transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.pain-card:hover{border-color:#C9D7DE;box-shadow:var(--shadow-md);transform:translateY(-3px)}
.pain-num{font-size:12px;font-weight:700;color:var(--accent);letter-spacing:.08em;margin-bottom:8px}
.pain-title{font-size:16px;font-weight:700;line-height:1.5}
.pain-desc{margin-top:10px;font-size:13px;line-height:1.7;color:var(--text-3)}
/* Solution area */
.solution-section{background:#fff;border-bottom:1px solid var(--line)}
.solution-wrap{display:grid;grid-template-columns:.35fr .65fr;gap:56px}
.solution-aside .side-intro{margin:18px 0 22px;font-size:15px;color:var(--text-2)}
.solution-aside .link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600}
.solution-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.solution-card{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.solution-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#CBD9E0}
.solution-card img{width:100%;aspect-ratio:16/8;object-fit:cover}
.solution-card-body{padding:22px}
.solution-card h3{font-size:18px;font-weight:700;margin-bottom:8px}
.solution-card p{font-size:14px;color:var(--text-2)}
.solution-card .icon-line{display:flex;align-items:center;gap:8px;margin-bottom:14px;color:var(--primary);font-size:13px;font-weight:600}
.solution-wide{grid-column:span 2;display:grid;grid-template-columns:1fr 1fr;background:var(--primary-light);border-radius:var(--r-lg);border:1px solid rgba(57,120,143,.16);overflow:hidden}
.solution-wide img{width:100%;height:100%;min-height:210px;object-fit:cover}
.solution-wide-text{padding:30px;display:flex;flex-direction:column;justify-content:center}
.solution-wide h3{font-size:20px;font-weight:700}
.solution-wide p{margin-top:10px;color:var(--text-2);font-size:14px}
.solution-wide .btn{margin-top:20px;align-self:flex-start;height:40px;padding:0 20px}
/* Stats area */
.stats-section{position:relative;padding:80px 0;overflow:hidden}
.stats-bg{
  position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center 30%;z-index:-2;
}
.stats-bg::after{content:"";position:absolute;inset:0;background:rgba(42,95,115,.92);z-index:-1}
.stats-title{color:#fff;text-align:center;max-width:700px;margin:0 auto 44px}
.stats-title h2{font-size:clamp(22px,3vw,30px);margin-bottom:12px}
.stats-title p{font-size:15px;opacity:.9}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.stat-card{
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);
  border-radius:var(--r-lg);padding:30px 22px;text-align:center;color:#fff;
  backdrop-filter:blur(4px);transition:background .25s,transform .25s;
}
.stat-card:hover{background:rgba(255,255,255,.16);transform:translateY(-3px)}
.stat-number{font-size:30px;font-weight:700;letter-spacing:-0.02em;line-height:1.2}
.stat-number small{font-size:15px;font-weight:600;margin-left:2px;opacity:.9}
.stat-label{font-size:13px;opacity:.82;margin-top:8px}
/* News  */
.news-section{background:#fff}
.news-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:36px}
.news-arrows{display:flex;gap:10px}
.news-area{display:grid;grid-template-columns:1fr 1fr;gap:44px}
.news-list{display:flex;flex-direction:column;gap:0}
.news-feature-card{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;margin-bottom:18px;
}
.news-feature-body{padding:22px 22px 18px}
.news-meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;font-size:13px;color:var(--text-3);margin-bottom:10px}
.news-list-item{
  display:flex;gap:20px;align-items:center;padding:20px 4px;border-bottom:1px solid var(--line);
  transition:background .2s;
}
.news-list-item:last-child{border-bottom:none}
.news-list-item:hover{background:#FAFBFD}
.news-index{font-size:14px;color:var(--text-3);min-width:24px;font-weight:600}
.news-item-content{flex:1;min-width:0}
.news-item-title{font-size:17px;font-weight:600;line-height:1.5;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news-item-title a:hover{color:var(--primary)}
.news-item-excerpt{margin-top:6px;font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item-meta{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--text-3);margin-top:10px}
.news-empty{
  grid-column:1 / -1;border:1px dashed var(--line);border-radius:var(--r-lg);
  padding:42px;text-align:center;color:var(--text-3);background:var(--bg);
}
.news-go{font-size:14px;color:var(--primary);font-weight:600;flex-shrink:0;margin-left:10px}
.news-quick-cats{display:flex;flex-wrap:wrap;gap:10px;margin-top:38px}
/* CTA */
.cta-section{position:relative;padding:80px 0}
.cta-panel{
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  background:#fff;border:1px solid var(--line);border-radius:20px;
  padding:44px 46px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden;
}
.cta-panel::after{content:"";position:absolute;right:-80px;top:-80px;width:220px;height:220px;border-radius:50%;background:var(--primary-light);opacity:.7}
.cta-copy{max-width:620px;position:relative;z-index:1}
.cta-copy h2{font-size:clamp(21px,2.6vw,28px);line-height:1.35}
.cta-copy p{margin-top:12px;color:var(--text-2);font-size:15px}
.cta-action{position:relative;z-index:1;flex-shrink:0}
/* FAQ */
.faq-section{background:#fff;border-top:1px solid var(--line)}
.faq-wrap{max-width:840px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-question{
  width:100%;display:flex;justify-content:space-between;align-items:center;gap:24px;
  padding:26px 4px;text-align:left;font-size:16px;font-weight:600;color:var(--text);
  transition:color .2s;
}
.faq-question:hover{color:var(--primary)}
.faq-question .faq-icon{width:32px;height:32px;border:1px solid var(--line);border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:transform .3s,background .3s,border-color .3s}
.faq-icon svg{width:14px;height:14px;color:var(--text-3);transition:color .2s}
.faq-answer{
  max-height:0;overflow:hidden;transition:max-height .3s ease;
}
.faq-answer p{padding:0 46px 22px 4px;font-size:14px;color:var(--text-2);line-height:1.8}
.faq-item.open .faq-question{color:var(--primary)}
.faq-item.open .faq-icon{background:var(--primary);border-color:var(--primary);transform:rotate(45deg)}
.faq-item.open .faq-icon svg{color:#fff}
/* Footer */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:70px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.2fr .9fr 1.2fr;gap:48px;margin-bottom:44px}
.footer-brand .brand{font-size:20px;font-weight:700;color:var(--text)}
.footer-brand p{margin-top:14px;font-size:14px;color:var(--text-2);line-height:1.8;max-width:340px}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links li a{font-size:14px;color:var(--text-2);transition:color .2s,padding-left .2s}
.footer-links li a:hover{color:var(--primary);padding-left:5px}
.footer-security{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-md);
  padding:14px 16px;display:flex;flex-direction:column;gap:8px;
}
.footer-security span{font-size:13px;color:var(--text-3);display:flex;align-items:flex-start;gap:6px}
.footer-security svg{width:15px;height:15px;flex-shrink:0;margin-top:4px;color:var(--primary)}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;
  padding-top:28px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--primary)}
/* Modal */
.modal{
  position:fixed;inset:0;z-index:200;background:rgba(31,42,48,.55);
  display:none;align-items:flex-start;justify-content:center;padding:40px 16px;overflow-y:auto;
}
.modal.is-open{display:flex}
.modal-card{
  background:#fff;border-radius:16px;max-width:480px;width:100%;
  padding:36px 34px 28px;position:relative;box-shadow:0 24px 60px rgba(0,0,0,.2);
}
.modal-close{
  position:absolute;top:18px;right:18px;width:40px;height:40px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;color:var(--text-2);
  transition:background .2s,color .2s;
}
.modal-close:hover{background:var(--bg);color:var(--text)}
.modal-close svg{width:18px;height:18px}
.modal-card h3{font-size:24px;margin-bottom:8px}
.modal-card .modal-sub{font-size:14px;color:var(--text-3);margin-bottom:24px}
.form-group{margin-bottom:18px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-label{display:block;font-size:13px;font-weight:600;margin-bottom:8px;color:var(--text)}
.form-input{
  width:100%;height:46px;padding:0 14px;border:1px solid var(--line);
  border-radius:8px;background:#FBFCFD;transition:border-color .2s,box-shadow .2s;
}
textarea.form-input{height:90px;padding:12px 14px;resize:vertical}
.form-input:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(57,120,143,.12);
  background:#fff;
}
.form-select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235A6A72' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center}
.form-note{margin-top:6px;font-size:12px;color:var(--text-3)}
.form-footer{margin-top:6px;padding:12px 14px;background:var(--bg);border-radius:8px;font-size:12px;line-height:1.7;color:var(--text-3);display:flex;gap:8px}
.form-footer svg{width:14px;height:14px;flex-shrink:0;margin-top:3px;color:var(--primary)}
.form-submit{margin-top:14px;width:100%;height:48px}
.modal-success{display:none;text-align:center;padding:28px 4px}
.modal-success.is-show{display:block}
.modal-success .success-icon{
  width:66px;height:66px;margin:0 auto 18px;background:var(--primary-light);color:var(--primary);
  border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:28px;
}
/* Responsive */
@media (max-width: 991px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .solution-wrap{grid-template-columns:1fr;gap:40px}
  .stats-grid{grid-template-columns:1fr 1fr}
  .section{padding:76px 0}
  .cta-panel{padding:36px 28px;flex-direction:column;align-items:flex-start}
}
@media (max-width: 767px){
  .header-inner{gap:16px}
  .brand{font-size:18px}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .nav-cta-btn{display:none}
  .header-actions{margin-left:0}
  .site-nav{
    position:fixed;top:0;right:0;width:100%;height:100vh;background:#fff;z-index:100;
    transform:translateX(100%);transition:transform .3s ease;pointer-events:none;
    display:flex;flex-direction:column;justify-content:flex-start;padding:26px;
  }
  .site-nav.is-open{transform:translateX(0);pointer-events:auto}
  .nav-close{display:inline-flex;position:absolute;top:18px;right:18px}
  .nav-list{margin:50px 0 0;flex-direction:column;align-items:flex-start;gap:8px}
  .nav-link{display:block;width:100%;font-size:19px;padding:14px 0;border-bottom:1px solid var(--line)}
  .nav-link.active::after{display:none}
  .site-nav .btn{width:100%;margin-top:20px}
  .pain-grid{grid-template-columns:1fr 1fr;gap:14px}
  .solution-grid{grid-template-columns:1fr}
  .solution-wide{grid-template-columns:1fr}
  .solution-wide img{max-height:180px;min-height:0}
  .cta-panel{padding:32px 22px}
  .news-list{grid-template-columns:1fr}
  .section{padding:60px 0}
  .footer-grid{grid-template-columns:1fr;gap:36px}
  .stats-grid{grid-template-columns:1fr 1fr}
  .form-grid{grid-template-columns:1fr}
  .hero-title{font-size:30px}
  .footer-bottom{flex-direction:column;justify-content:center;text-align:center}
  .news-item-title{white-space:normal;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
}
@media (max-width: 520px){
  :root{--pad:16px}
  .pain-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr}
  .news-meta-row{gap:6px 12px}
  .news-list-item{flex-direction:column;align-items:flex-start}
  .news-go{margin-left:0}
  .modal-card{padding:30px 20px}
}

/* roulang page: article */
:root {
  --primary: #39788F;
  --primary-dark: #2F6577;
  --primary-light: #E8F1F4;
  --accent: #E7A33E;
  --accent-dark: #D68F28;
  --bg: #F6F8F9;
  --card: #FFFFFF;
  --text: #1F2A30;
  --muted: #5A6A72;
  --light: #8A9AA3;
  --border: #E3E9ED;
  --radius-lg: 18px;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 6px 20px rgba(30, 60, 80, 0.05);
  --shadow-hover: 0 12px 28px rgba(30, 60, 80, 0.1);
  --font: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

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

audio,
canvas,
iframe,
video {
  max-width: 100%;
}

ul,
ol {
  list-style: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 4px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  transition: background .2s, box-shadow .2s, border-color .2s, transform .2s, color .2s;
  text-align: center;
  white-space: nowrap;
}

.btn-accent {
  background: var(--accent);
  color: #232323;
  box-shadow: 0 6px 16px rgba(231, 163, 62, 0.22);
}

.btn-accent:hover {
  background: #F0AF4C;
  box-shadow: 0 10px 22px rgba(231, 163, 62, 0.3);
  transform: translateY(-1px);
}

.btn-accent:active {
  transform: translateY(0);
}

.btn-outline {
  background: transparent;
  border-color: var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary-light);
  border-color: var(--primary-dark);
}

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--muted);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--primary);
  white-space: nowrap;
}

.brand i {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-left: 5px;
  border-radius: 50%;
  background: var(--accent);
  vertical-align: 3px;
}

.site-nav .nav-list {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 14px 0;
  font-size: 15px;
  color: #2A363D;
  font-weight: 500;
  transition: color .2s;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 9px;
  height: 3px;
  border-radius: 99px;
  background: var(--primary);
  transition: right .28s ease;
}

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

.nav-link:hover::after,
.nav-link.active::after {
  right: 0;
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.nav-cta-btn {
  min-height: 38px;
  padding: 0 18px;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  color: var(--primary);
  transition: background .2s, border-color .2s;
}

.nav-toggle svg,
.nav-close svg,
.modal-close svg {
  width: 21px;
  height: 21px;
}

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

.nav-close {
  display: none;
  position: absolute;
  top: 18px;
  right: 18px;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text);
  cursor: pointer;
  z-index: 20;
}

.nav-close:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}

.is-mobile {
  display: none;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 42px 0 18px;
  font-size: 13px;
  color: var(--light);
}

.breadcrumb a {
  color: var(--muted);
  transition: color .2s;
}

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

.breadcrumb span {
  opacity: .65;
}

.breadcrumb .breadcrumb-current {
  color: var(--text);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 260px;
}

.article-main {
  padding-bottom: 40px;
}

.article-wrap {
  max-width: 900px;
  margin: 0 auto;
}

.article-detail {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 52px 64px 56px;
}

.article-header {
  margin-bottom: 18px;
}

.category-pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 13px;
  margin-bottom: 20px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
}

.article-header h1 {
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.35;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--text);
  margin-bottom: 18px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  align-items: center;
  font-size: 13px;
  color: var(--light);
}

.article-meta .meta-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-meta .meta-label svg {
  width: 16px;
  height: 16px;
  color: var(--light);
}

.article-divider {
  width: 100%;
  height: 1px;
  background: var(--border);
  margin: 18px 0 28px;
}

.article-body {
  font-size: 16px;
  line-height: 1.95;
  color: var(--text);
  word-break: break-word;
}

.article-body > p,
.article-body p {
  margin: 0 0 1.1em;
  line-height: 1.95;
  text-indent: 2em;
}

.article-body h2,
.article-body h3,
.article-body h4 {
  color: var(--text);
  margin: 30px 0 14px;
  line-height: 1.5;
}

.article-body h2 {
  font-size: 23px;
  padding-left: 13px;
  border-left: 4px solid var(--primary);
  margin-top: 38px;
}

.article-body h3 {
  font-size: 19px;
  font-weight: 600;
  margin-top: 30px;
}

.article-body h4 {
  font-size: 17px;
  font-weight: 600;
}

.article-body ul,
.article-body ol {
  margin: 0 0 1.5em;
  padding-left: 1.6em;
}

.article-body ul {
  list-style: disc;
}

.article-body ol {
  list-style: decimal;
}

.article-body li {
  margin-bottom: 6px;
  text-align: left;
}

.article-body blockquote {
  margin: 26px 0;
  padding: 18px 22px;
  background: var(--primary-light);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--muted);
  overflow: hidden;
}

.article-body blockquote p {
  text-indent: 0;
  margin-bottom: 0;
}

.article-body img {
  border-radius: 8px;
  margin: 24px 0;
  box-shadow: var(--shadow);
}

.article-body a {
  color: var(--primary);
  border-bottom: 1px solid rgba(57, 120, 143, 0.4);
  transition: border-color .2s;
}

.article-body a:hover {
  border-bottom-color: var(--primary);
}

.article-body code {
  background: #EFF3F4;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 7px;
  font-size: 0.9em;
  color: var(--primary-dark);
  white-space: nowrap;
}

.article-body pre {
  background: #EFF3F4;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 18px;
  margin: 24px 0;
  overflow-x: auto;
  line-height: 1.7;
}

.article-body pre code {
  background: transparent;
  border: 0;
  padding: 0;
  color: var(--text);
  white-space: pre;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}

.article-body th,
.article-body td {
  border: 1px solid var(--border);
  padding: 10px 12px;
  text-align: left;
  vertical-align: top;
}

.article-body th {
  background: #F0F4F5;
  font-weight: 600;
  color: var(--primary-dark);
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 32px 0 22px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.article-tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 12px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
  transition: color .2s, border-color .2s;
}

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

.article-foot-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
  align-items: center;
}

.article-foot-links .btn {
  min-width: 112px;
}

.missing-state {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  text-align: center;
  padding: 72px 32px;
}

.missing-icon {
  width: 62px;
  height: 62px;
  margin: 0 auto 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  border-radius: 50%;
  color: var(--primary);
}

.missing-icon svg {
  width: 30px;
  height: 30px;
}

.missing-state h1 {
  font-size: 26px;
  color: var(--text);
  margin-bottom: 10px;
}

.missing-state p {
  color: var(--muted);
  font-size: 15px;
  max-width: 460px;
  margin: 0 auto 24px;
}

.related-section {
  padding: 72px 0 90px;
}

.related-caption {
  max-width: 900px;
  margin: 0 auto 24px;
}

.related-caption h2 {
  font-size: 24px;
  color: var(--text);
  margin-bottom: 6px;
  font-weight: 700;
}

.related-caption p {
  font-size: 14px;
  color: var(--muted);
}

.related-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.related-card {
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow .25s, transform .25s, border-color .25s;
}

.related-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  border-color: #D2DEE3;
}

.related-card .thumb {
  width: 100%;
  aspect-ratio: 19 / 10;
  object-fit: cover;
}

.related-card-body {
  padding: 20px 20px 18px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.related-card h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 8px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.related-card p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.7;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-meta {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 12px;
  color: var(--light);
}

.related-meta .link-arrow {
  color: var(--primary);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap .2s;
}

.related-meta .link-arrow:hover {
  gap: 8px;
}

.related-meta .link-arrow svg {
  width: 14px;
  height: 14px;
}

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

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 50px;
  padding: 70px 0 48px;
}

.footer-brand .brand {
  color: var(--primary);
  font-size: 1.32rem;
  margin-bottom: 14px;
}

.footer-brand p {
  color: var(--muted);
  font-size: 14px;
  max-width: 390px;
  margin-top: 6px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 16px;
  letter-spacing: .02em;
}

.footer-links li {
  margin-bottom: 9px;
}

.footer-links a {
  color: var(--muted);
  font-size: 14px;
  transition: color .2s;
}

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

.footer-security {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-security span {
  display: flex;
  gap: 9px;
  align-items: flex-start;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.footer-security svg {
  flex-shrink: 0;
  width: 17px;
  height: 17px;
  color: var(--light);
  margin-top: 2px;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  padding: 22px 0 28px;
  border-top: 1px solid var(--border);
  color: var(--light);
  font-size: 13px;
}

.footer-bottom a {
  color: var(--light);
  transition: color .2s;
}

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

.modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 200;
}

.modal.open {
  display: flex;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(18, 30, 38, 0.55);
  cursor: pointer;
}

.modal-card {
  position: relative;
  z-index: 2;
  width: 480px;
  max-width: 100%;
  max-height: 92vh;
  overflow-y: auto;
  background: #FFFFFF;
  border-radius: 16px;
  box-shadow: 0 24px 60px rgba(18, 30, 38, 0.22);
  padding: 38px 38px 32px;
}

.modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text);
  cursor: pointer;
  transition: color .2s, border-color .2s, background .2s;
}

.modal-close:hover {
  background: var(--primary-light);
  border-color: var(--primary);
  color: var(--primary);
}

.modal h2 {
  font-size: 24px;
  color: var(--text);
  font-weight: 700;
  margin-bottom: 6px;
}

.modal-intro {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 22px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 7px;
}

.form-group label span {
  color: var(--light);
  font-weight: 400;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  height: 44px;
  padding: 0 13px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #FFFFFF;
  transition: border-color .2s, box-shadow .2s;
  font-size: 14px;
}

.form-group textarea {
  height: auto;
  min-height: 86px;
  padding-top: 10px;
  padding-bottom: 10px;
  resize: vertical;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(57, 120, 143, 0.12);
}

.privacy-note {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  margin-top: 18px;
  margin-bottom: 18px;
  font-size: 12px;
  color: var(--light);
  line-height: 1.65;
}

.privacy-note svg {
  flex-shrink: 0;
  width: 15px;
  height: 15px;
  color: var(--primary);
  margin-top: 2px;
}

.modal-submit {
  width: 100%;
}

.modal-success {
  display: none;
  text-align: center;
  padding: 44px 16px;
}

.modal-success.visible {
  display: block;
}

.modal-success .success-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 18px;
  background: #EEF7EF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #4F9860;
}

.modal-success svg {
  width: 28px;
  height: 28px;
}

.modal-success h3 {
  font-size: 20px;
  margin-bottom: 8px;
}

.modal-success p {
  color: var(--muted);
  font-size: 14px;
  max-width: 340px;
  margin: 0 auto 18px;
}

@media (max-width: 991px) {
  .header-actions .nav-cta-btn {
    display: none;
  }

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

  .site-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(340px, 86vw);
    background: #FFFFFF;
    z-index: 300;
    padding: 80px 30px 30px;
    transform: translateX(100%);
    transition: transform .32s ease;
    border-left: 1px solid var(--border);
    box-shadow: -12px 0 40px rgba(18, 30, 38, 0.1);
    overflow-y: auto;
  }

  .site-nav.open {
    transform: translateX(0);
  }

  .site-nav .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .site-nav .nav-link {
    display: block;
    padding: 11px 0;
    font-size: 17px;
    width: 100%;
  }

  .nav-link::after {
    bottom: 4px;
  }

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

  .is-mobile.nav-cta-btn {
    display: inline-flex;
    margin-top: 26px;
    width: 100%;
  }

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

  .article-detail {
    padding: 36px 26px;
  }

  .article-wrap {
    max-width: 100%;
  }

  .related-section {
    padding: 54px 0 64px;
  }

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 38px;
  }
}

@media (max-width: 767px) {
  .container {
    padding: 0 16px;
  }

  .article-main {
    padding-bottom: 12px;
  }

  .breadcrumb {
    padding-top: 32px;
  }

  .article-detail {
    padding: 26px 18px 30px;
    border-radius: var(--radius);
  }

  .article-header h1 {
    font-size: clamp(24px, 7vw, 32px);
    line-height: 1.4;
  }

  .article-body {
    font-size: 15px;
  }

  .article-body > p,
  .article-body p {
    line-height: 1.9;
  }

  .article-foot-links .btn {
    flex: 1;
    min-width: 0;
  }

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

  .related-card .thumb {
    aspect-ratio: 16 / 9;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    padding: 50px 0 26px;
    gap: 30px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    padding: 18px 0 22px;
  }

  .modal-card {
    padding: 30px 20px 22px;
  }
}

@media (max-width: 520px) {
  .nav-cta-btn {
    padding: 0 14px;
    font-size: 13px;
  }

  .btn {
    white-space: normal;
  }

  .article-meta {
    gap: 8px 16px;
  }
}

/* roulang page: category1 */
:root {
  --primary: #3F7E94;
  --primary-dark: #2F6378;
  --primary-light: #E9F1F4;
  --accent: #E7A33E;
  --accent-dark: #D18F2A;
  --bg: #F6F8F9;
  --card: #FFFFFF;
  --text: #1F2A30;
  --text-2: #5A6A72;
  --muted: #8A9AA3;
  --line: #E3E9ED;
  --shadow-sm: 0 6px 20px rgba(30, 60, 80, 0.05);
  --shadow-md: 0 12px 28px rgba(30, 60, 80, 0.10);
  --radius-lg: 14px;
  --radius: 10px;
  --radius-btn: 8px;
  --radius-pill: 999px;
  --container: 1200px;
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  --ease: cubic-bezier(0.2, 0.6, 0.3, 1);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font); background: var(--bg); color: var(--text); font-size: 16px; line-height: 1.8; -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; transition: color .25s var(--ease), background-color .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease), opacity .25s var(--ease); }
button { font-family: inherit; cursor: pointer; }
ul, ol, figure, h1, h2, h3, h4, p, blockquote { margin: 0; padding: 0; }
h1, h2, h3 { line-height: 1.35; letter-spacing: 0.01em; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; border-radius: 4px; }
.container { max-width: calc(var(--container) + 48px); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; position: relative; }
.section-head { max-width: 720px; margin-bottom: 48px; }
.sec-label { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; letter-spacing: .12em; color: var(--primary); background: var(--primary-light); border-radius: var(--radius-pill); padding: 6px 16px; font-weight: 600; margin-bottom: 16px; text-transform: uppercase; }
.section-title { font-size: clamp(26px, 3.2vw, 34px); font-weight: 700; color: var(--text); margin-bottom: 12px; }
.section-desc { font-size: 16px; color: var(--text-2); line-height: 1.85; }
.section-center { text-align: center; margin-left: auto; margin-right: auto; }

/* ========= Header ========= */
.site-header { position: sticky; top: 0; left: 0; right: 0; z-index: 80; background: rgba(255, 255, 255, 0.96); border-bottom: 1px solid var(--line); }
.header-inner { display: flex; height: 72px; align-items: center; justify-content: space-between; gap: 40px; position: relative; }
.brand { display: inline-flex; align-items: center; font-weight: 700; font-size: 20px; color: var(--text); letter-spacing: .01em; flex-shrink: 0; }
.brand i { display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); margin-left: 5px; vertical-align: 6px; }
.site-nav { display: flex; align-items: center; justify-content: space-between; flex: 1; gap: 32px; }
.nav-list { display: flex; align-items: center; list-style: none; gap: 38px; }
.nav-link { position: relative; font-size: 15px; font-weight: 500; color: #2A363D; padding: 7px 2px; }
.nav-link::after { content: ""; display: block; width: 20px; height: 3px; background: transparent; border-radius: var(--radius-pill); margin-top: 3px; transition: background .25s var(--ease), width .25s var(--ease); }
.nav-link:hover { color: var(--primary); }
.nav-link:hover::after, .nav-link.active::after { background: var(--accent); width: 20px; }
.nav-link.active { color: var(--primary-dark); }
.header-actions { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
.header-actions .btn { flex-shrink: 0; }
.nav-toggle { display: none; align-items: center; justify-content: center; border: 1px solid var(--line); border-radius: var(--radius-btn); background: var(--card); width: 44px; height: 44px; color: var(--text); }
.nav-toggle svg { width: 22px; height: 22px; }
.nav-close { display: none; align-items: center; justify-content: center; border: 0; background: var(--card); width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--line); color: var(--text); }

/* ========= Buttons ========= */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: var(--radius-btn); font-weight: 600; font-size: 15px; line-height: 1; padding: 14px 22px; transition: all .25s var(--ease); border: 1px solid transparent; white-space: nowrap; }
.btn svg { width: 17px; height: 17px; }
.btn-accent { background: var(--accent); color: #1C252B; border-color: var(--accent); box-shadow: 0 8px 18px rgba(231, 163, 62, 0.16); }
.btn-accent:hover { background: #F0B255; border-color: #F0B255; box-shadow: 0 10px 24px rgba(231, 163, 62, 0.24); transform: translateY(-1px); color: #1C252B; }
.btn-accent:active { transform: translateY(1px); box-shadow: 0 4px 10px rgba(231, 163, 62, 0.18); }
.btn-outline { background: transparent; border-color: var(--primary); color: var(--primary-dark); }
.btn-outline:hover { background: rgba(63, 126, 148, 0.08); border-color: var(--primary); }
.btn-ghost { background: transparent; color: var(--primary-dark); padding-left: 8px; padding-right: 8px; }
.btn-ghost:hover { color: var(--accent-dark); }
.btn-sm { padding: 10px 16px; font-size: 14px; }
.btn-lg { padding: 16px 30px; font-size: 16px; }
.site-nav .nav-cta-btn.is-mobile { display: none; }

/* ========= Page Hero ========= */
.category-hero { position: relative; background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat; border-bottom: 1px solid var(--line); }
.category-hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(105deg, rgba(255,255,255,.96) 0%, rgba(255,255,255,.84) 46%, rgba(230,239,243,.68) 100%); }
.category-hero-inner { position: relative; max-width: 920px; padding: 112px 0 104px; }
.crumb { display: flex; flex-wrap: wrap; align-items: center; gap: 9px; font-size: 13px; color: var(--muted); margin-bottom: 24px; }
.crumb a { color: var(--muted); }
.crumb a:hover { color: var(--primary); }
.crumb .sep { color: var(--line); font-size: 12px; }
.crumb span[aria-current="page"] { color: var(--text-2); font-weight: 600; }
.hero-eyebrow { display: inline-flex; align-items: center; gap: 10px; background: rgba(63, 126, 148, .1); color: var(--primary-dark); border-radius: var(--radius-pill); padding: 7px 16px; font-size: 13px; font-weight: 600; margin-bottom: 20px; letter-spacing: .02em; }
.hero-eyebrow::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }
.category-hero h1 { font-size: clamp(34px, 5vw, 48px); font-weight: 700; color: var(--text); line-height: 1.18; margin-bottom: 18px; }
.category-hero .hero-lead { font-size: 17px; line-height: 1.85; color: var(--text-2); max-width: 660px; margin-bottom: 28px; }
.hero-note { display: flex; flex-wrap: wrap; gap: 15px; margin-top: 34px; color: var(--text-2); font-size: 13px; }
.hero-note span { display: inline-flex; align-items: center; gap: 6px; background: rgba(255,255,255,.82); border: 1px solid var(--line); padding: 5px 12px; border-radius: var(--radius-pill); }
.hero-note svg { width: 14px; height: 14px; stroke: var(--accent); color: var(--primary); }
.hero-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }

/* ========= Feature Rows ========= */
.feature-list { display: flex; flex-direction: column; gap: 90px; }
.feature-row { display: grid; grid-template-columns: 1.02fr 1fr; gap: 64px; align-items: center; }
.feature-row + .feature-row { border-top: 1px solid var(--line); padding-top: 90px; }
.feature-media { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--line); aspect-ratio: 4/3; background: #E4EBEF; }
.feature-media img { width: 100%; height: 100%; object-fit: cover; }
.feature-row--reverse .feature-media { order: 1; }
.feature-row--reverse .feature-body { order: 2; }
.feature-body { display: flex; flex-direction: column; align-items: flex-start; }
.feature-tag { display: inline-block; font-size: 13px; font-weight: 600; color: var(--primary-dark); border-radius: var(--radius-pill); padding: 4px 14px; background: var(--primary-light); letter-spacing: .04em; margin-bottom: 17px; }
.feature-body h3 { font-size: 25px; line-height: 1.4; font-weight: 700; margin-bottom: 14px; }
.feature-body > p { color: var(--text-2); font-size: 15px; line-height: 1.9; margin-bottom: 20px; }
.feature-points { list-style: none; margin-bottom: 26px; display: grid; gap: 10px; }
.feature-points li { position: relative; padding-left: 29px; color: var(--text); font-size: 14px; line-height: 1.7; }
.feature-points li::before { content: ""; position: absolute; left: 2px; top: 9px; width: 16px; height: 16px; border-radius: 50%; background: rgba(231, 163, 62, .16); border: 1px solid rgba(231, 163, 62, .35); background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23D18F2A' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E"); background-size: 9px; background-position: center; background-repeat: no-repeat; }
.feature-actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }

/* ========= Criteria ========= */
.criteria-section { background: #FFFFFF; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.criteria-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.criteria-card { background: var(--bg); border: 1px solid var(--line); border-top: 3px solid var(--accent); border-radius: var(--radius-lg); padding: 30px 26px; transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease); }
.criteria-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: #E5D5BA; }
.criteria-num { display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; border-radius: 10px; background: rgba(63,126,148,.12); color: var(--primary-dark); font-weight: 700; font-size: 15px; margin-bottom: 18px; }
.criteria-card h3 { font-size: 17px; font-weight: 650; margin-bottom: 9px; }
.criteria-card p { font-size: 14px; color: var(--text-2); line-height: 1.8; }

/* ========= Steps ========= */
.steps-section { background: url('/assets/images/backpic/back-3.png') left top / 360px no-repeat, var(--bg); }
.steps-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; counter-reset: step; }
.step-card { border: 1px solid var(--line); background: var(--card); border-radius: var(--radius-lg); padding: 34px 30px; box-shadow: var(--shadow-sm); transition: transform .3s var(--ease), box-shadow .3s var(--ease); position: relative; counter-increment: step; }
.step-card::after { content: counter(step, decimal-leading-zero); position: absolute; right: 24px; top: 18px; font-size: 44px; font-weight: 700; line-height: 1; color: rgba(63, 126, 148, .1); }
.step-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.step-icon { width: 44px; height: 44px; border-radius: 12px; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
.step-icon svg { width: 21px; height: 21px; }
.step-card h3 { font-size: 18px; font-weight: 650; margin-bottom: 10px; }
.step-card p { font-size: 14px; color: var(--text-2); line-height: 1.8; }

/* ========= CTA Band ========= */
.cta-band { position: relative; padding: 100px 0; background: linear-gradient(100deg, rgba(31,50,60,.92) 0%, rgba(46,93,108,.86) 100%), url('/assets/images/backpic/back-2.webp') center/cover; color: #FFFFFF; }
.cta-inner { position: relative; z-index: 2; max-width: 720px; text-align: center; margin: 0 auto; }
.cta-inner h2 { font-size: clamp(26px, 3.4vw, 36px); font-weight: 700; margin-bottom: 14px; color: #FFF; }
.cta-inner p { font-size: 16px; line-height: 1.85; color: rgba(255,255,255,.78); margin-bottom: 30px; }
.cta-inner .cta-note { display: flex; align-items: center; justify-content: center; gap: 7px; margin-top: 18px; font-size: 12px; color: rgba(255,255,255,.48); }
.cta-inner .cta-note svg { width: 13px; height: 13px; color: rgba(255,255,255,.42); }

/* ========= FAQ ========= */
.faq-wrapper { max-width: 860px; margin: 0 auto; }
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); background: #FFFFFF; }
.faq-item + .faq-item { border-top: 0; }
.faq-question { width: 100%; background: none; border: 0; display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 22px 6px; text-align: left; font-size: 15px; font-weight: 600; color: var(--text); transition: color .25s var(--ease); }
.faq-question:hover { color: var(--primary-dark); }
.faq-icon { display: inline-flex; width: 28px; height: 28px; border-radius: 50%; border: 1px solid var(--line); color: var(--primary); flex-shrink: 0; align-items: center; justify-content: center; transition: transform .35s var(--ease), border-color .35s var(--ease), background .35s var(--ease); }
.faq-icon svg { width: 14px; height: 14px; }
.faq-item.open .faq-icon { transform: rotate(180deg); border-color: var(--primary); background: var(--primary-light); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .5s var(--ease), padding .35s var(--ease); padding: 0 6px; color: var(--text-2); font-size: 14px; line-height: 1.8; }
.faq-item.open .faq-answer { max-height: 220px; padding-bottom: 22px; }

/* ========= Modal / Popup ========= */
.modal-layer { display: none; position: fixed; inset: 0; z-index: 120; padding: 24px; background: rgba(24, 36, 42, 0.58); align-items: center; justify-content: center; backdrop-filter: blur(2px); }
.modal-layer.open { display: flex; }
.modal-card { position: relative; width: min(100%, 500px); max-height: 92vh; overflow-y: auto; background: #FFF; border-radius: 16px; box-shadow: 0 24px 70px rgba(20, 38, 46, .24); padding: 40px 36px 34px; animation: modalIn .35s ease both; }
@keyframes modalIn { from { opacity: 0; transform: translateY(16px) scale(.98); } to { opacity: 1; transform: translateY(0) scale(1); } }
.modal-close { position: absolute; right: 16px; top: 16px; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 50%; background: var(--card); color: var(--text-2); display: flex; align-items: center; justify-content: center; transition: all .25s var(--ease); }
.modal-close:hover { background: var(--bg); border-color: var(--primary); color: var(--primary); transform: rotate(90deg); }
.modal-close svg { width: 17px; height: 17px; }
.modal-title { font-size: 24px; font-weight: 700; margin-bottom: 8px; }
.modal-subtitle { color: var(--text-2); font-size: 14px; margin-bottom: 24px; line-height: 1.7; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-field { display: flex; flex-direction: column; gap: 6px; }
.form-field.full { grid-column: span 2; }
.form-field label { font-size: 13px; font-weight: 600; color: var(--text); display: flex; align-items: center; gap: 6px; }
.form-field label .req { color: var(--accent-dark); }
.form-field input, .form-field select, .form-field textarea { border: 1px solid var(--line); background: #FCFDFD; border-radius: var(--radius-btn); padding: 12px 14px; font-size: 14px; font-family: inherit; color: var(--text); transition: border-color .25s var(--ease), box-shadow .25s var(--ease); width: 100%; }
.form-field textarea { resize: vertical; min-height: 88px; }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(63, 126, 148, .13); background: #FFF; }
.form-field ::placeholder { color: #AEBBC2; }
.privacy-note { display: flex; align-items: flex-start; gap: 9px; background: #F3F6F7; border-radius: var(--radius); padding: 13px 14px; font-size: 12px; line-height: 1.6; color: var(--muted); margin-top: 18px; }
.privacy-note svg { width: 14px; height: 14px; flex: none; margin-top: 3px; color: var(--primary); }
.form-submit { width: 100%; margin-top: 18px; }
.modal-success { display: none; text-align: center; padding: 40px 0 26px; }
.modal-success-icon { width: 64px; height: 64px; margin: 0 auto 22px; background: rgba(63, 126, 148, .1); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: var(--primary); }
.modal-success-icon svg { width: 30px; height: 30px; }
.modal-success h3 { font-size: 21px; margin-bottom: 8px; }
.modal-success p { color: var(--text-2); font-size: 14px; margin-bottom: 26px; }
body.no-scroll { overflow: hidden; }

/* ========= Footer ========= */
.site-footer { background: #EFF3F5; border-top: 1px solid var(--line); color: var(--text-2); padding-top: 56px; font-size: 14px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1.35fr; gap: 56px; padding-bottom: 46px; }
.footer-brand .brand { margin-bottom: 13px; display: inline-flex; }
.footer-brand p { max-width: 330px; line-height: 1.9; color: var(--text-2); font-size: 14px; }
.footer-col h4 { font-size: 15px; font-weight: 700; color: var(--text); margin-bottom: 19px; }
.footer-links { list-style: none; display: grid; gap: 12px; }
.footer-links a { color: var(--text-2); font-size: 14px; transition: color .25s var(--ease); }
.footer-links a:hover { color: var(--primary); padding-left: 3px; }
.footer-security { display: grid; gap: 17px; }
.footer-security span { display: flex; align-items: flex-start; gap: 10px; color: var(--muted); line-height: 1.65; font-size: 13px; }
.footer-security svg { width: 16px; height: 16px; flex: none; margin-top: 4px; color: var(--primary); }
.footer-bottom { border-top: 1px solid var(--line); padding: 25px 0 28px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; color: var(--muted); font-size: 12px; }
.footer-bottom a { color: var(--muted); }
.footer-bottom a:hover { color: var(--primary); }

/* ========= Responsive ========= */
@media (max-width: 1180px) {
  .nav-list { gap: 26px; }
  .feature-row { gap: 44px; }
  .criteria-grid { gap: 20px; }
  .criteria-card { padding: 24px 20px; }
  .footer-grid { gap: 36px; }
}
@media (max-width: 991px) {
  .section { padding: 74px 0; }
  .header-actions { margin-left: auto; }
  .header-actions .nav-cta-btn { display: none; }
  .nav-toggle { display: inline-flex; }
  .site-nav { position: fixed; top: 0; right: 0; z-index: 130; height: 100vh; width: min(82vw, 390px); flex-direction: column; align-items: flex-start; justify-content: flex-start; background: #FFFFFF; border-left: 1px solid var(--line); box-shadow: 0 0 50px rgba(20, 40, 50, .14); transform: translateX(105%); transition: transform .4s var(--ease); padding: 28px 26px; gap: 0; flex-wrap: nowrap; }
  body.nav-open .site-nav { transform: translateX(0); }
  .site-nav .nav-close { display: flex; position: static; margin-left: auto; margin-bottom: 18px; }
  .site-nav .nav-list { display: flex; flex-direction: column; align-items: flex-start; gap: 4px; width: 100%; margin-top: 8px; }
  .site-nav .nav-list li { width: 100%; }
  .site-nav .nav-link { display: block; padding: 13px 4px; width: 100%; font-size: 17px; border-bottom: 1px solid #EDF1F4; }
  .site-nav .nav-link::after { display: none; }
  .site-nav .nav-link:hover { padding-left: 9px; }
  .site-nav .nav-cta-btn.is-mobile { display: inline-flex; margin-top: 26px; }
  .header-actions .brand { margin-right: auto; }
  .feature-list { gap: 70px; }
  .feature-row { grid-template-columns: 1fr; gap: 30px; }
  .feature-row + .feature-row { padding-top: 70px; }
  .feature-row--reverse .feature-media, .feature-row--reverse .feature-body { order: unset; }
  .feature-media { aspect-ratio: 4/3; }
  .criteria-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-list { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
  .step-card { padding: 26px 20px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .footer-brand { grid-column: span 2; }
}
@media (max-width: 767px) {
  .hero-category-inner, .category-hero-inner { padding: 72px 0 64px; }
  .section { padding: 56px 0; }
  .section-head { margin-bottom: 34px; }
  .container { padding: 0 16px; }
  .header-inner { height: 66px; }
  .hero-actions .btn { width: 100%; }
  .hero-actions .btn-ghost { width: auto; justify-content: flex-start; }
  .feature-list { gap: 54px; }
  .feature-row + .feature-row { padding-top: 54px; }
  .feature-media { aspect-ratio: 4/3; }
  .criteria-grid { grid-template-columns: 1fr; }
  .steps-list { grid-template-columns: 1fr; }
  .step-card::after { font-size: 36px; }
  .cta-band { padding: 64px 0; }
  .cta-inner .btn { width: 100%; }
  .cta-inner .cta-note { flex-wrap: wrap; }
  .modal-card { padding: 34px 22px 28px; }
  .form-grid { grid-template-columns: 1fr; }
  .form-field.full { grid-column: span 1; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-brand { grid-column: auto; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .category-hero h1 { font-size: clamp(30px, 7vw, 40px); }
  .category-hero .hero-lead { font-size: 15px; }
}
@media (max-width: 520px) {
  .header-actions { gap: 8px; }
}

/* roulang page: category2 */
:root{
  --primary:#39788F;
  --primary-deep:#326a7e;
  --accent:#E7A33E;
  --accent-hover:#efb45a;
  --bg:#F6F8F9;
  --card:#ffffff;
  --text:#1F2A30;
  --text-secondary:#5A6A72;
  --muted:#8A9AA3;
  --border:#E3E9ED;
  --radius-lg:14px;
  --radius-md:10px;
  --radius-sm:8px;
  --radius-pill:999px;
  --shadow-card:0 6px 20px rgba(30,60,80,.05);
  --shadow-hover:0 12px 28px rgba(30,60,80,.10);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  line-height:1.8;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}
button,input,select,textarea{font:inherit;border:none;background:none;color:inherit}
button{cursor:pointer}
input,textarea,select{width:100%}
:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:3px;
  border-radius:4px;
}
.container{
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
/* header */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(246,248,249,.94);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--border);
}
.header-inner{
  display:flex;
  height:72px;
  align-items:center;
  justify-content:space-between;
  gap:40px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:20px;
  font-weight:700;
  letter-spacing:.01em;
  color:var(--text);
  white-space:nowrap;
}
.brand i{
  width:8px;height:8px;
  border-radius:50%;
  background:var(--accent);
  display:inline-block;
}
.site-nav{
  display:flex;
  align-items:center;
}
.nav-list{
  display:flex;
  align-items:center;
  gap:36px;
}
.nav-link{
  position:relative;
  color:var(--text-secondary);
  font-size:15px;
  font-weight:500;
  padding:10px 0;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;bottom:-2px;
  width:4px;height:4px;
  border-radius:var(--radius-pill);
  background:var(--primary);
  opacity:0;
  transform:translateX(-50%);
  transition:opacity .2s ease;
}
.nav-link:hover{color:var(--primary)}
.nav-link.active{color:var(--text)}
.nav-link.active::after{opacity:1}
.nav-close{
  display:none;
}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
}
.nav-toggle{
  width:44px;height:44px;
  border-radius:8px;
  display:none;
  align-items:center;
  justify-content:center;
  color:var(--text);
  border:1px solid var(--border);
}
.nav-toggle:active{transform:translateY(1px)}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--radius-sm);
  font-weight:600;
  font-size:15px;
  line-height:1;
  padding:12px 22px;
  transition:all .2s ease;
  white-space:nowrap;
}
.btn svg{width:18px;height:18px}
.btn-accent{
  background:var(--accent);
  color:#1F2A30;
  border:1px solid transparent;
  box-shadow:0 2px 10px rgba(231,163,62,.22);
}
.btn-accent:hover{
  background:var(--accent-hover);
  box-shadow:0 6px 16px rgba(231,163,62,.32);
  transform:translateY(-2px);
}
.btn-accent:active{transform:translateY(1px)}
.btn-primary-line{
  background:transparent;
  color:var(--primary);
  border:1px solid rgba(57,120,143,.38);
}
.btn-primary-line:hover{
  color:var(--primary-deep);
  border-color:var(--primary);
  background:rgba(57,120,143,.04);
  transform:translateY(-2px);
}
.btn-primary-line:active{transform:translateY(1px)}
.btn-ghost{
  background:transparent;
  color:var(--primary);
  border:1px solid transparent;
  padding-left:10px;padding-right:10px;
}
.btn-ghost:hover{color:var(--primary-deep);background:rgba(57,120,143,.06)}
.btn-ghost svg{transition:transform .2s}
.btn-ghost:hover svg{transform:translateX(4px)}
.nav-cta-btn.is-mobile{display:none}
/* 底部主内容 */
.main{overflow:hidden}
/* Hero 分类横幅 */
.page-hero{
  position:relative;
  background:var(--bg);
  border-bottom:1px solid var(--border);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:
    linear-gradient(100deg,rgba(246,248,249,1) 14%,rgba(246,248,249,.84) 55%,rgba(246,248,249,.55)),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  pointer-events:none;
}
.page-hero .container{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:minmax(0,1.12fr) minmax(340px,.88fr);
  align-items:center;
  gap:72px;
  padding-top:76px;
  padding-bottom:90px;
}
.hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--primary);
  background:rgba(57,120,143,.10);
  border:1px solid rgba(57,120,143,.14);
  padding:6px 14px;
  border-radius:var(--radius-pill);
}
.hero-kicker i{width:6px;height:6px;border-radius:50%;background:var(--accent)}
.page-hero h1{
  font-size:clamp(30px,4vw,42px);
  line-height:1.28;
  letter-spacing:.01em;
  margin:22px 0 18px;
  font-weight:700;
  color:var(--text);
}
.page-hero h1 span{
  color:var(--primary);
}
.page-hero p{
  font-size:16.5px;
  color:var(--text-secondary);
  max-width:620px;
}
.hero-meta-line{
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  margin-top:14px;
  font-size:14px;
  color:var(--muted);
}
.hero-meta-line span{display:inline-flex;align-items:center;gap:7px}
.hero-meta-line svg{width:16px;height:16px;color:var(--primary)}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  margin-top:34px;
}
.hero-actions .btn{margin:0}
.hero-visual{position:relative;margin:0 8px}
.hero-frame{
  border-radius:var(--radius-lg);
  border:1px solid var(--border);
  background:#fff;
  box-shadow:var(--shadow-hover);
  overflow:hidden;
  padding:10px 10px 8px;
}
.hero-frame img{
  border-radius:calc(var(--radius-lg) - 5px);
  width:100%;
  aspect-ratio:1/1.02;
  object-fit:cover;
}
.visual-note{
  position:absolute;
  right:-16px;
  bottom:28px;
  width:166px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:15px 16px;
  box-shadow:0 12px 30px rgba(30,60,80,.14);
}
.visual-note strong{
  display:block;
  color:var(--text);
  font-size:16px;
}
.visual-note small{
  display:block;
  color:var(--muted);
  font-size:12px;
  margin-top:4px;
}
.visual-note::before{
  content:"";
  width:7px;
  height:7px;
  border-radius:50%;
  background:#35b39c;
  display:inline-block;
  margin-bottom:9px;
}
/* section helper */
.section-site{padding:96px 0}
.section-soft{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-body .container{max-width:1100px}
.section-head{
  text-align:center;
  max-width:700px;
  margin:0 auto 58px;
}
.section-head .lead{
  display:inline-flex;
  align-items:center;
  gap:12px;
  font-size:13px;
  color:var(--primary);
  font-weight:600;
  letter-spacing:.08em;
}
.section-head .lead::before,.section-head .lead::after{
  content:"";
  width:22px;height:1px;
  background:var(--primary);
  opacity:.35;
}
.section-head h2{
  font-size:clamp(24px,3vw,32px);
  line-height:1.35;
  font-weight:700;
  margin:12px 0 14px;
  color:var(--text);
  letter-spacing:.01em;
}
.section-head p{
  font-size:16px;
  color:var(--text-secondary);
  line-height:1.85;
}
/* 玩法识别网格 */
.brief-list{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.brief-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:26px 22px;
  box-shadow:var(--shadow-card);
  transition:box-shadow .25s,transform .25s;
}
.brief-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-3px);
}
.brief-icon{
  width:44px;height:44px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(57,120,143,.09);
  color:var(--primary);
  border-radius:12px;
}
.brief-icon svg{width:24px;height:24px}
.brief-card h3{
  margin:18px 0 8px;
  font-size:17px;
  font-weight:700;
  color:var(--text);
}
.brief-card p{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.8;
}
/* 封面墙 */
.section-wall{
  padding-top:96px;
  padding-bottom:110px;
}
.cover-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:34px;
  align-items:start;
  padding-bottom:36px;
}
.cover-card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.cover-grid .cover-card:nth-child(2),
.cover-grid .cover-card:nth-child(5){
  transform:translateY(26px);
}
.cover-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-hover);
  border-color:#c9dae1;
}
.cover-grid .cover-card:nth-child(2):hover,
.cover-grid .cover-card:nth-child(5):hover{
  transform:translateY(23px);
}
.cover-card-img{
  aspect-ratio:16/10;
  overflow:hidden;
  position:relative;
}
.cover-card-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.cover-card:hover .cover-card-img img{transform:scale(1.03)}
.cover-card-img::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;height:35%;
  background:linear-gradient(180deg,transparent,rgba(31,42,48,.38));
}
.cover-node{
  position:absolute;
  top:14px;left:14px;
  z-index:2;
  background:rgba(255,255,255,.92);
  color:var(--primary-deep);
  font-size:12px;
  font-weight:700;
  padding:4px 12px;
  border-radius:var(--radius-pill);
  letter-spacing:.03em;
  box-shadow:0 3px 8px rgba(30,60,80,.08);
}
.cover-body{padding:22px 22px 20px}
.cover-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:11px;
}
.cover-meta time{
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.cover-meta svg{width:14px;height:14px}
.cover-body h3{
  font-size:18px;
  font-weight:700;
  color:var(--text);
  transition:color .2s;
  line-height:1.4;
}
.cover-card:hover .cover-body h3{color:var(--primary)}
.cover-body p{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.8;
  margin-top:10px;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.cover-link{
  margin-top:18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.cover-link span{
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:5px;
}
.cover-link svg{
  width:16px;height:16px;
  transition:transform .2s;
}
.cover-card:hover .cover-link svg{transform:translateX(4px)}
/* 流程区 */
.flow-section{
  background:#fff;
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
  padding:96px 0;
}
.flow-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:28px;
}
.flow-item{
  position:relative;
  padding:26px 20px 20px 0;
}
.flow-item::before{
  content:"";
  display:block;
  width:34px;height:3px;
  background:var(--accent);
  border-radius:3px;
  margin-bottom:22px;
}
.flow-num{
  font-size:15px;
  font-weight:800;
  color:var(--primary);
  letter-spacing:.12em;
  line-height:1;
}
.flow-item h3{
  font-size:16px;
  margin:10px 0 8px;
  color:var(--text);
  line-height:1.5;
}
.flow-item p{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.85;
}
.flow-grid::after{
  content:"";
  display:block;
  height:1px;
  background:var(--border);
  grid-column:1/-1;
  margin-top:8px;
}
/* 场景条 */
.scene-wrap{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:60px;
  align-items:center;
}
.scene-copy h2{
  font-size:clamp(24px,2.6vw,30px);
  color:var(--text);
  line-height:1.4;
  font-weight:700;
  margin-bottom:14px;
}
.scene-copy > p{
  color:var(--text-secondary);
  font-size:15.5px;
  max-width:520px;
}
.scene-list{
  margin-top:34px;
}
.scene-item{
  display:flex;
  gap:16px;
  padding:22px 0;
  border-bottom:1px dashed var(--border);
}
.scene-item:last-child{border-bottom:0}
.scene-tag{
  min-width:70px;
  height:28px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:rgba(231,163,62,.16);
  border:1px solid rgba(231,163,62,.30);
  color:#9c671a;
  font-size:12px;
  font-weight:600;
  border-radius:var(--radius-pill);
}
.scene-item h3{
  font-size:16px;
  color:var(--text);
  font-weight:700;
  margin-bottom:3px;
}
.scene-item p{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.75;
}
.scene-visual{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--border);
  box-shadow:var(--shadow-hover);
  background:#fff;
  padding:8px;
}
.scene-visual img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:calc(var(--radius-lg) - 5px);
}
.scene-float{
  position:absolute;
  bottom:22px;left:8%;right:8%;
  background:rgba(255,255,255,.94);
  border:1px solid var(--border);
  box-shadow:0 10px 24px rgba(30,60,80,.12);
  border-radius:var(--radius-sm);
  padding:12px 16px;
  font-size:13px;
  color:var(--text-secondary);
}
.scene-float strong{color:var(--primary-deep);font-weight:700;display:block;font-size:14px;margin-bottom:2px}
/* FAQ */
.faq-wrap{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px 34px;
  max-width:980px;
  margin:0 auto;
}
.faq-toggle{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  padding:21px 24px;
  box-shadow:var(--shadow-card);
  transition:border-color .2s,box-shadow .2s;
}
.faq-toggle:hover{border-color:#c9dce3}
.faq-q{
  display:flex;
  justify-content:space-between;
  gap:16px;
  width:100%;
  text-align:left;
  font-size:15.5px;
  line-height:1.6;
  font-weight:600;
  color:var(--text);
}
.faq-q svg{
  width:22px;height:22px;
  flex-shrink:0;
  transition:transform .3s;
  color:var(--primary);
}
.faq-toggle.open .faq-q svg{transform:rotate(45deg)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease,padding .3s ease;
  padding:0;
}
.faq-toggle.open .faq-a{
  max-height:220px;
  padding-top:14px;
}
.faq-a p{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.9;
}
/* 尾底部CTA */
.bottom-cta{
  position:relative;
  background:#fff;
  border-top:1px solid var(--border);
  padding:90px 0 104px;
  text-align:center;
}
.cta-label{
  display:inline-block;
  font-size:13px;
  letter-spacing:.12em;
  color:var(--primary);
  font-weight:700;
  background:rgba(57,120,143,.08);
  border-radius:var(--radius-pill);
  padding:6px 18px;
  margin-bottom:24px;
}
.bottom-cta h2{
  font-size:clamp(25px,3.2vw,34px);
  font-weight:700;
  color:var(--text);
  line-height:1.4;
  max-width:680px;
  margin:0 auto;
}
.bottom-cta p{
  font-size:15.5px;
  color:var(--text-secondary);
  max-width:620px;
  margin:18px auto 30px;
  line-height:1.9;
}
.bottom-cta .btn{
  min-width:170px;
}
/* 页脚 */
.site-footer{
  background:rgba(229,235,238,.55);
  border-top:1px solid var(--border);
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.3fr 1fr .9fr;
  gap:60px;
  padding-bottom:40px;
}
.footer-brand p{
  color:var(--text-secondary);
  font-size:14px;
  line-height:1.9;
  max-width:360px;
  margin-top:16px;
}
.footer-col h4{
  color:var(--text);
  font-size:15px;
  margin-bottom:18px;
  position:relative;
  padding-left:14px;
}
.footer-col h4::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:4px;height:13px;
  background:var(--accent);
  border-radius:4px;
}
.footer-links{
  display:grid;
  gap:9px;
}
.footer-links a{
  color:var(--text-secondary);
  font-size:14px;
  transition:color .2s,padding-left .2s;
}
.footer-links a:hover{color:var(--primary);padding-left:5px}
.footer-security{
  display:grid;
  gap:14px;
}
.footer-security span{
  display:flex;
  align-items:flex-start;
  gap:9px;
  background:rgba(255,255,255,.72);
  border-radius:var(--radius-sm);
  padding:11px 14px;
  font-size:12px;
  color:var(--text-secondary);
  line-height:1.7;
}
.footer-security svg{
  width:15px;height:15px;
  color:var(--primary);
  flex-shrink:0;
  margin-top:3px;
}
.footer-bottom{
  border-top:1px solid rgba(190,202,208,.65);
  display:flex;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  padding:20px 0 28px;
  font-size:13px;
  color:var(--muted);
}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--primary)}
/* 模态 */
.modal{
  position:fixed;
  inset:0;
  z-index:200;
  display:none;
  align-items:center;
  justify-content:center;
  padding:20px;
}
.modal.active{display:flex}
.scrim{
  position:absolute;
  inset:0;
  background:rgba(31,42,48,.48);
  -webkit-backdrop-filter:blur(3px);
  backdrop-filter:blur(3px);
}
.modal-panel{
  position:relative;
  background:#fff;
  width:100%;
  max-width:496px;
  border-radius:16px;
  box-shadow:0 24px 70px rgba(16,40,56,.24);
  padding:32px;
  animation:modalIn .3s ease;
  max-height:92vh;
  overflow:auto;
}
@keyframes modalIn{
  from{opacity:0;transform:translateY(14px) scale(.98)}
  to{opacity:1;transform:none}
}
.modal-close{
  position:absolute;
  top:14px;right:14px;
  width:38px;height:38px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  color:var(--text-secondary);
}
.modal-close:hover{background:#f0f3f5}
.modal-close:active{transform:scale(.96)}
.modal-title{
  font-size:21px;
  font-weight:700;
  color:var(--text);
  margin-bottom:8px;
}
.modal-sub{
  font-size:13.5px;
  color:var(--muted);
  margin-bottom:24px;
}
.form-row{
  display:grid;
  gap:6px;
  margin-bottom:18px;
}
.form-row label{
  font-size:14px;
  font-weight:600;
  color:var(--text);
}
.form-row input,.form-row select,.form-row textarea{
  border:1px solid var(--border);
  background:#fbfcfc;
  border-radius:var(--radius-sm);
  padding:11px 14px;
  font-size:15px;
  color:var(--text);
  transition:border-color .2s,box-shadow .2s,background .2s;
}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(57,120,143,.11);
  background:#fff;
}
.form-row textarea{min-height:86px;resize:vertical}
.form-row ::placeholder{color:#a9b6be}
.privacy-line{
  display:flex;
  gap:8px;
  align-items:flex-start;
  background:#f2f5f7;
  font-size:12px;
  line-height:1.8;
  color:#7b8a93;
  border-radius:var(--radius-sm);
  padding:12px 14px;
  margin-bottom:20px;
}
.privacy-line svg{width:15px;height:15px;flex-shrink:0;color:var(--primary);margin-top:4px}
.modal .btn{width:100%;padding-top:14px;padding-bottom:14px}
.modal-success{display:none;text-align:center;padding:28px 0}
.modal.success .modal-form{display:none}
.modal.success .modal-success{display:block}
.modal-success svg{width:54px;height:54px;color:#35b39c;margin:0 auto 18px}
.modal-success h3{font-size:21px;font-weight:700;margin-top:0;margin-bottom:8px}
.modal-success p{color:var(--muted);font-size:14px}
/* 响应式 */
@media(max-width:1024px){
  .page-hero .container{gap:40px;padding-top:60px;padding-bottom:70px}
  .brief-list,.flow-grid{grid-template-columns:repeat(2,1fr)}
  .cover-grid{grid-template-columns:repeat(2,1fr)}
  .cover-grid .cover-card:nth-child(2),
  .cover-grid .cover-card:nth-child(5){transform:none}
  .cover-grid .cover-card:nth-child(2):hover,
  .cover-grid .cover-card:nth-child(5):hover{transform:translateY(-3px)}
  .cover-grid .cover-card:last-child{grid-column:span 2;max-width:340px;justify-self:center;width:100%}
  .scene-wrap{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .section-site,.section-soft,.flow-section{padding:74px 0}
  .section-wall{padding-top:74px;padding-bottom:84px}
  .bottom-cta{padding:74px 0 88px}
}
@media(max-width:768px){
  .section-site,.section-soft,.flow-section{padding:56px 0}
  .section-wall{padding-top:56px;padding-bottom:66px}
  .bottom-cta{padding:56px 0 66px}
  .site-header{height:64px}
  .header-inner{height:64px}
  .site-nav{
    position:fixed;
    inset:0;
    background:#fdfefe;
    display:block;
    z-index:120;
    opacity:0;
    visibility:hidden;
    transition:opacity .25s,visibility .25s;
    padding:24px 26px;
    overflow:auto;
  }
  .site-nav.open{opacity:1;visibility:visible}
  .nav-close{
    display:flex;
    align-items:center;justify-content:center;
    width:44px;height:44px;
    border-radius:50%;
    color:var(--text);
    margin-left:auto;
  }
  .nav-close:hover{background:#eef2f4}
  .nav-list{
    display:block;
    margin-top:34px;
  }
  .nav-list li + li{border-top:1px solid var(--border)}
  .nav-list .btn{display:inline-flex}
  .nav-link{
    display:block;
    font-size:18px;
    padding:16px 0;
    color:var(--text);
  }
  .nav-link::after{
    display:none;
  }
  .nav-link.active{color:var(--primary)}
  .header-actions .nav-cta-btn{display:none}
  .header-actions .nav-toggle{display:inline-flex}
  .nav-cta-btn.is-mobile{display:inline-flex;margin-top:26px;width:100%;justify-content:center}
  .page-hero .container{
    grid-template-columns:1fr;
    gap:44px;
    padding-top:46px;
    padding-bottom:48px;
  }
  .hero-visual{
    max-width:500px;
    margin-inline:auto;
  }
  .visual-note{right:-4px;bottom:18px;width:150px}
  .section-head{margin-bottom:38px}
  .brief-list{grid-template-columns:1fr;gap:14px}
  .brief-card{display:flex;align-items:flex-start;gap:16px;padding:18px}
  .brief-icon{flex:0 0 auto;width:48px;height:48px}
  .brief-card h3{margin:0 0 6px}
  .cover-grid{
    grid-template-columns:1fr;
    gap:30px;
  }
  .cover-grid .cover-card:last-child{grid-column:span 1}
  .cover-card-img{aspect-ratio:4/3}
  .flow-grid{grid-template-columns:1fr;gap:10px}
  .flow-item{padding:8px 0 8px;border-bottom:1px dashed var(--border)}
  .flow-item::before{margin-top:6px;margin-bottom:14px}
  .scene-item{flex-direction:column;gap:10px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;gap:8px}
  .modal-panel{padding:24px 20px}
}
@media(max-width:520px){
  .container{padding:0 16px}
  .brand{font-size:18px}
  .hero-meta-line{gap:8px 14px}
  .hero-actions .btn{flex:1;justify-content:center}
  .page-hero h1{font-size:28px}
  .section-head .lead{letter-spacing:.04em;font-size:12px}
  .faq-wrap{gap:10px}
  .faq-q{font-size:14.5px}
}

/* roulang page: category3 */
:root{
  --primary:#39788F;
  --primary-dark:#2E6179;
  --accent:#E7A33E;
  --accent-dark:#D4922C;
  --page:#F6F8F9;
  --card:#FFFFFF;
  --ink:#223039;
  --muted:#5A6A72;
  --soft:#8A9AA3;
  --line:#E3E9ED;
  --radius-lg:14px;
  --radius-md:10px;
  --radius-sm:8px;
  --shadow-sm:0 6px 20px rgba(30,60,80,.05);
  --shadow-lg:0 12px 28px rgba(30,60,80,.10);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
body,ul,li,h1,h2,h3,h4,p,figure{margin:0;padding:0}
ul,ol{list-style:none}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
button{border:0;background:none;cursor:pointer}
body{
  font-family:var(--font);
  background:var(--page);
  color:var(--ink);
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
.container{
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
  border-radius:4px;
}

/* header */
.site-header{
  position:relative;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
}
.header-inner{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{
  display:inline-flex;
  align-items:center;
  font-size:20px;
  font-weight:700;
  letter-spacing:.02em;
  white-space:nowrap;
  color:var(--ink);
}
.brand i{
  font-style:normal;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--accent);
  display:inline-block;
  margin-left:3px;
  vertical-align:middle;
}
.site-nav{
  display:flex;
  align-items:center;
  gap:44px;
}
.nav-list{
  display:flex;
  align-items:center;
  gap:36px;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  font-size:15px;
  font-weight:500;
  color:#2A363D;
  transition:color .2s ease;
}
.nav-link:hover{
  color:var(--primary);
}
.nav-link.active{
  color:var(--primary);
  font-weight:600;
}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:6px;
  transform:translateX(-50%);
  width:20px;
  height:3px;
  border-radius:99px;
  background:var(--primary);
}
.header-actions{
  display:flex;
  align-items:center;
  gap:18px;
}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  color:var(--ink);
  border-radius:8px;
  transition:background .2s;
}
.nav-toggle:hover{
  background:var(--page);
}
.nav-toggle svg{
  width:23px;
  height:23px;
}
.nav-close{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  color:var(--ink);
  border-radius:8px;
  margin-left:auto;
}
.nav-close svg{
  width:22px;
  height:22px;
}
.nav-cta-btn.is-mobile{
  display:none;
}
.nav-backdrop{
  position:fixed;
  inset:0;
  background:rgba(28,40,48,.38);
  z-index:55;
  opacity:0;
  visibility:hidden;
  transition:.3s ease;
}
.nav-backdrop.open{
  opacity:1;
  visibility:visible;
}

/* buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:9px 24px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1.4;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  cursor:pointer;
  white-space:nowrap;
}
.btn-accent{
  background:var(--accent);
  color:#1F2A30;
  box-shadow:0 6px 18px rgba(231,163,62,.24);
}
.btn-accent:hover{
  background:#EEB45A;
  color:#142129;
  box-shadow:0 10px 24px rgba(231,163,62,.34);
  transform:translateY(-2px);
}
.btn-accent:active{
  transform:translateY(0);
  box-shadow:0 4px 12px rgba(231,163,62,.2);
}
.btn-line{
  background:#fff;
  border-color:#C9D6DC;
  color:var(--primary-dark);
}
.btn-line:hover{
  border-color:var(--primary);
  background:rgba(57,120,143,.05);
  transform:translateY(-2px);
}
.btn-ghost{
  background:transparent;
  color:var(--primary-dark);
  padding-left:10px;
  padding-right:10px;
}
.btn-ghost:hover{
  color:var(--primary);
}

/* hero */
.hero{
  background:#fff;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.hero-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:64px;
  align-items:center;
  padding-top:84px;
  padding-bottom:90px;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--primary);
  background:rgba(57,120,143,.09);
  border:1px solid rgba(57,120,143,.14);
  padding:5px 14px;
  border-radius:999px;
  margin-bottom:24px;
  font-weight:600;
  letter-spacing:.04em;
}
.hero-eyebrow::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--accent);
}
.hero-title{
  font-size:clamp(34px,4.8vw,52px);
  line-height:1.18;
  font-weight:700;
  letter-spacing:.01em;
  margin-bottom:22px;
}
.hero-sub{
  font-size:17px;
  color:var(--muted);
  max-width:525px;
  margin-bottom:28px;
}
.hero-points{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:12px 22px;
  margin-bottom:34px;
}
.hero-points span{
  display:flex;
  align-items:flex-start;
  gap:9px;
  font-size:14px;
  color:#2F3E46;
  line-height:1.55;
}
.hero-points svg{
  width:17px;
  height:17px;
  flex:none;
  margin-top:3px;
  color:var(--primary);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  align-items:center;
}
.hero-panel{
  position:relative;
  min-width:0;
}
.hero-shot{
  position:relative;
  border:1px solid var(--line);
  border-radius:18px;
  overflow:hidden;
  box-shadow:var(--shadow-lg);
  background:#fff;
}
.hero-shot img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  object-position:center;
}
.shot-note{
  position:absolute;
  background:#fff;
  border:1px solid var(--line);
  box-shadow:var(--shadow-sm);
  padding:10px 18px;
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  color:var(--ink);
}
.shot-note-top{
  top:20px;
  left:20px;
}
.shot-note-top::before{
  content:"";
  display:inline-block;
  width:7px;
  height:7px;
  border-radius:50%;
  background:#4BA66F;
  margin-right:8px;
}
.shot-note-bottom{
  bottom:22px;
  right:20px;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(6px);
  color:var(--primary-dark);
}
.shot-note-bottom::after{
  content:"";
  display:inline-block;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--accent);
  margin-left:8px;
}

/* section shared */
.section{
  padding:96px 0;
}
.section.alt{
  background:#fff;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--primary);
}
.eyebrow::before{
  content:"";
  width:16px;
  height:3px;
  border-radius:99px;
  background:var(--accent);
}
.section-title{
  font-size:clamp(24px,3vw,32px);
  line-height:1.3;
  font-weight:700;
  letter-spacing:.01em;
  margin:12px 0 16px;
}
.lead-text{
  font-size:15px;
  color:var(--muted);
  line-height:1.9;
}

/* editorial split layout */
.split-editorial{
  display:grid;
  grid-template-columns:320px 1fr;
  gap:64px;
  align-items:start;
}
.editorial-rail{
  position:sticky;
  top:96px;
}
.editorial-rail .lead-text{
  margin-top:8px;
}
.editorial-main{
  display:grid;
  gap:24px;
}
.info-row{
  display:grid;
  grid-template-columns:210px 1fr;
  border:1px solid var(--line);
  background:#fff;
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:box-shadow .25s ease,transform .25s ease;
}
.info-row:hover{
  box-shadow:var(--shadow-lg);
  transform:translateY(-3px);
}
.info-cover{
  width:100%;
  height:100%;
  min-height:180px;
  object-fit:cover;
  object-position:center;
}
.info-copy{
  padding:24px 28px;
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  justify-content:center;
}
.tag{
  display:inline-flex;
  align-items:center;
  border:1px solid #C9D6DC;
  color:var(--primary-dark);
  background:rgba(57,120,143,.04);
  border-radius:999px;
  font-size:13px;
  padding:3px 13px;
  font-weight:600;
  margin-bottom:14px;
}
.info-copy h3{
  font-size:19px;
  font-weight:700;
  margin-bottom:8px;
  line-height:1.45;
}
.info-copy p{
  font-size:15px;
  color:var(--muted);
  margin-bottom:16px;
  max-width:560px;
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  transition:color .2s;
}
.text-link:hover{
  color:var(--accent-dark);
}
.text-link svg{
  width:16px;
  height:16px;
  transition:transform .2s;
}
.text-link:hover svg{
  transform:translateX(3px);
}

/* scene cards */
.scene-head{
  max-width:640px;
  margin-bottom:44px;
}
.scene-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.scene-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:28px;
  box-shadow:var(--shadow-sm);
  transition:transform .25s,box-shadow .25s,border-color .25s;
}
.scene-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-lg);
  border-color:#D4DEE4;
}
.scene-step{
  font-size:13px;
  font-weight:700;
  color:var(--accent-dark);
  letter-spacing:.1em;
}
.scene-title{
  font-size:18px;
  font-weight:700;
  margin:16px 0 10px;
  line-height:1.45;
}
.scene-text{
  font-size:15px;
  color:var(--muted);
  line-height:1.85;
}
.scene-cover{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  object-position:center;
  border-radius:var(--radius-md);
  margin-top:18px;
  border:1px solid var(--line);
}

/* flow */
.flow-section{
  background:#fff;
  border-top:1px solid var(--line);
}
.flow-grid{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:60px;
  align-items:center;
}
.flow-head h2{
  margin-bottom:16px;
}
.flow-steps{
  display:grid;
  gap:18px;
}
.flow-step{
  position:relative;
  display:grid;
  grid-template-columns:48px 1fr;
  gap:18px;
  background:var(--page);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:22px 24px;
}
.flow-step-number{
  display:flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:50%;
  background:rgba(57,120,143,.12);
  color:var(--primary);
  font-weight:700;
  font-size:16px;
  border:1px solid rgba(57,120,143,.16);
}
.flow-step h3{
  font-size:17px;
  font-weight:700;
  margin-bottom:5px;
}
.flow-step p{
  font-size:14px;
  color:var(--muted);
  line-height:1.75;
}

/* FAQ */
.faq-wrap{
  max-width:840px;
  margin:0 auto;
}
.faq-head{
  text-align:center;
  margin-bottom:44px;
}
.faq-head .eyebrow{
  justify-content:center;
}
.faq-item{
  border:1px solid var(--line);
  background:#fff;
  border-radius:var(--radius-md);
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  width:100%;
  text-align:left;
  padding:20px 26px;
  cursor:pointer;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  line-height:1.5;
  transition:color .2s;
}
.faq-q:hover{
  color:var(--primary);
}
.faq-q .arrow{
  flex:none;
  width:30px;
  height:30px;
  border-radius:50%;
  border:1px solid var(--line);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--primary);
  transition:transform .25s, background .2s,color .2s;
}
.faq-q .arrow svg{
  width:15px;
  height:15px;
}
.faq-item.open .faq-q .arrow{
  transform:rotate(45deg);
  background:var(--primary);
  color:#fff;
  border-color:var(--primary);
}
.faq-a{
  display:none;
  padding:0 26px 22px;
  color:var(--muted);
  font-size:15px;
  line-height:1.85;
}
.faq-item.open .faq-a{
  display:block;
}

/* CTA / view all */
.cta-section{
  background:#fff;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.cta-panel{
  position:relative;
  background:linear-gradient(120deg,rgba(57,120,143,.94),rgba(73,138,160,.86)),url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-radius:18px;
  padding:64px;
  text-align:center;
  overflow:hidden;
  box-shadow:var(--shadow-lg);
}
.cta-panel h2{
  color:#fff;
  font-size:clamp(24px,3.2vw,34px);
  font-weight:700;
  line-height:1.4;
  max-width:640px;
  margin:0 auto 16px;
}
.cta-panel p{
  color:rgba(255,255,255,.86);
  font-size:16px;
  max-width:660px;
  margin:0 auto 30px;
  line-height:1.8;
}
.cta-panel .btn-accent{
  min-width:180px;
}
.cta-mini-line{
  margin-top:22px;
  color:rgba(255,255,255,.72);
  font-size:13px;
  letter-spacing:.05em;
}
.cta-panel::after{
  content:"";
  position:absolute;
  right:-80px;
  top:-80px;
  width:260px;
  height:260px;
  background:rgba(255,255,255,.07);
  border-radius:50%;
  pointer-events:none;
}

/* footer */
.site-footer{
  background:#fff;
  border-top:1px solid var(--line);
  padding-top:74px;
  padding-bottom:34px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1.3fr;
  gap:48px;
  margin-bottom:52px;
}
.footer-brand .brand{
  font-size:21px;
  margin-bottom:16px;
}
.footer-brand p{
  font-size:14px;
  color:var(--muted);
  max-width:330px;
  line-height:1.9;
}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  margin-bottom:18px;
  color:var(--ink);
}
.footer-links li + li{
  margin-top:12px;
}
.footer-links a{
  font-size:14px;
  color:var(--muted);
  transition:color .2s;
}
.footer-links a:hover{
  color:var(--primary);
}
.footer-security{
  display:grid;
  gap:16px;
}
.footer-security span{
  display:flex;
  gap:9px;
  font-size:13px;
  color:var(--soft);
  line-height:1.6;
}
.footer-security svg{
  width:17px;
  height:17px;
  flex:none;
  margin-top:2px;
  color:var(--primary);
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  flex-wrap:wrap;
  padding-top:28px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--soft);
}
.footer-bottom a{
  color:var(--soft);
}
.footer-bottom a:hover{
  color:var(--primary);
}

/* modal */
.modal{
  position:fixed;
  inset:0;
  z-index:100;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:24px;
  visibility:hidden;
  opacity:0;
  transition:.28s ease;
  pointer-events:none;
}
.modal.open{
  visibility:visible;
  opacity:1;
  pointer-events:auto;
}
.modal-mask{
  position:absolute;
  inset:0;
  background:rgba(20,30,36,.48);
}
.modal-panel{
  position:relative;
  width:min(480px,100%);
  max-height:92vh;
  overflow:auto;
  background:#fff;
  border-radius:16px;
  box-shadow:0 24px 60px rgba(20,30,36,.28);
  padding:34px 34px 30px;
  transform:translateY(14px);
  transition:transform .28s ease;
}
.modal.open .modal-panel{
  transform:translateY(0);
}
.modal-close{
  position:absolute;
  right:14px;
  top:14px;
  width:40px;
  height:40px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  color:var(--soft);
  transition:background .2s,color .2s;
}
.modal-close:hover{
  background:var(--page);
  color:var(--ink);
}
.modal-close svg{
  width:19px;
  height:19px;
}
.modal-title{
  font-size:23px;
  font-weight:700;
  margin-bottom:8px;
}
.modal-desc{
  font-size:14px;
  color:var(--muted);
  line-height:1.75;
  margin-bottom:24px;
}
.form-stack{
  display:grid;
  gap:18px;
}
.field{
  display:grid;
  gap:6px;
}
.field-label{
  font-size:14px;
  font-weight:600;
  color:var(--ink);
}
.field-label span{
  color:var(--accent-dark);
  margin-left:2px;
}
.field-control, .field-select{
  width:100%;
  min-height:46px;
  padding:10px 14px;
  background:#fff;
  border:1px solid #D3DCE1;
  border-radius:var(--radius-sm);
  transition:border-color .2s,box-shadow .2s;
  color:var(--ink);
  font-size:15px;
}
.field-control:focus,.field-select:focus{
  outline:0;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(57,120,143,.15);
}
textarea.field-control{
  resize:vertical;
  line-height:1.7;
}
.form-submit{
  width:100%;
  margin-top:4px;
}
.form-note{
  display:flex;
  align-items:flex-start;
  gap:8px;
  background:var(--page);
  border:1px solid var(--line);
  border-radius:8px;
  padding:11px 14px;
  font-size:12px;
  color:var(--soft);
  line-height:1.65;
}
.form-note svg{
  flex:none;
  width:16px;
  height:16px;
  margin-top:1px;
  color:var(--primary);
}
.form-success{
  text-align:center;
  padding:34px 10px;
}
.success-icon{
  width:60px;
  height:60px;
  margin:0 auto 18px;
  border-radius:50%;
  background:rgba(75,166,111,.13);
  color:#3C9060;
  display:flex;
  align-items:center;
  justify-content:center;
}
.success-icon svg{
  width:30px;
  height:30px;
}
.form-success h3{
  font-size:21px;
  margin-bottom:10px;
}
.form-success p{
  font-size:14px;
  color:var(--muted);
}
.hidden{
  display:none;
}

/* responsive */
@media (max-width:991px){
  .container{
    padding-left:20px;
    padding-right:20px;
  }
  .nav-toggle{
    display:inline-flex;
  }
  .header-actions .nav-cta-btn{
    display:none;
  }
  .site-nav{
    position:fixed;
    top:0;
    right:0;
    width:min(82vw,340px);
    height:100vh;
    background:#fff;
    z-index:56;
    display:flex;
    flex-direction:column;
    align-items:stretch;
    padding:24px 22px 32px;
    gap:4px;
    transform:translateX(102%);
    transition:transform .3s ease;
    box-shadow:0 20px 50px rgba(20,30,36,.16);
    overflow-y:auto;
  }
  .site-nav.open{
    transform:none;
  }
  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:2px;
    margin-top:8px;
  }
  .nav-link{
    padding:10px 4px;
    font-size:17px;
    min-height:48px;
    border-bottom:1px solid var(--page);
    justify-content:flex-start;
  }
  .nav-link.active::after{
    display:none;
  }
  .nav-link.active{
    color:var(--primary);
    background:none;
    padding-left:12px;
    border-left:3px solid var(--primary);
    border-bottom-color:var(--line);
  }
  .nav-cta-btn.is-mobile{
    display:flex;
    margin-top:22px;
    width:100%;
  }
  .nav-close{
    display:flex;
  }
  .hero-grid{
    grid-template-columns:1fr;
    gap:44px;
    padding-top:64px;
    padding-bottom:68px;
  }
  .hero-sub{
    max-width:100%;
  }
  .split-editorial{
    grid-template-columns:1fr;
    gap:32px;
  }
  .editorial-rail{
    position:static;
  }
  .scene-grid{
    grid-template-columns:1fr 1fr;
  }
  .flow-grid{
    grid-template-columns:1fr;
    gap:36px;
  }
  .footer-grid{
    grid-template-columns:1fr 1fr;
  }
  .footer-brand{
    grid-column:1/-1;
  }
}
@media (max-width:767px){
  .container{
    padding-left:16px;
    padding-right:16px;
  }
  .section{
    padding:64px 0;
  }
  .header-inner{
    height:64px;
  }
  .brand{
    font-size:18px;
  }
  .hero-grid{
    padding-top:44px;
    padding-bottom:56px;
  }
  .hero-title{
    font-size:34px;
  }
  .hero-points{
    grid-template-columns:1fr;
  }
  .hero-shot img{
    aspect-ratio:4/3;
  }
  .info-row{
    grid-template-columns:1fr;
  }
  .info-cover{
    width:100%;
    min-height:0;
    aspect-ratio:16/8;
  }
  .info-copy{
    padding:20px;
  }
  .scene-grid{
    grid-template-columns:1fr;
  }
  .scene-card{
    padding:22px;
  }
  .flow-step{
    grid-template-columns:44px 1fr;
    padding:18px 16px;
  }
  .flow-step-number{
    width:38px;
    height:38px;
    font-size:15px;
  }
  .flow-step p{
    font-size:13px;
  }
  .cta-panel{
    padding:38px 22px;
    border-radius:14px;
  }
  .cta-panel p{
    font-size:15px;
  }
  .faq-q{
    padding:18px 16px;
    font-size:15px;
  }
  .faq-a{
    padding:0 16px 18px;
    font-size:14px;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:36px;
  }
  .footer-bottom{
    flex-direction:column;
    align-items:flex-start;
  }
  .modal-panel{
    padding:28px 20px 22px;
  }
}
@media (max-width:520px){
  .hero-actions{
    flex-direction:column;
    align-items:stretch;
  }
  .hero-actions .btn{
    width:100%;
  }
  .info-copy h3{
    font-size:17px;
  }
  .brand{
    font-size:17px;
  }
}